Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Takashi YOSHII <takashi.yoshii.zj@renesas.com>
Yusuke Goda <goda.yusuke@renesas.com>
+Gustavo Padovan <gustavo@las.ic.unicamp.br>
+Gustavo Padovan <padovan@profusion.mobi>
hardware registers.
- S ACTive
- Command Issue
- - Allocated
- Completed
- PORT IRQ STAT
- HOST IRQ STAT
+ - Allocated
+ - Commands in Q
What: /sys/block/rssd*/status
Date: April 2012
KernelVersion: 3.4
Contact: Asai Thambi S P <asamymuthupa@micron.com>
-Description: This is a read-only file. Indicates the status of the device.
+Description: This is a read-only file. Indicates the status of the device.
+
+What: /sys/block/rssd*/flags
+Date: May 2012
+KernelVersion: 3.5
+Contact: Asai Thambi S P <asamymuthupa@micron.com>
+Description: This is a read-only file. Dumps the flags in port and driver
+ data structure
--- /dev/null
+What: /sys/bus/fcoe/ctlr_X
+Date: March 2012
+KernelVersion: TBD
+Contact: Robert Love <robert.w.love@intel.com>, devel@open-fcoe.org
+Description: 'FCoE Controller' instances on the fcoe bus
+Attributes:
+
+ fcf_dev_loss_tmo: Device loss timeout peroid (see below). Changing
+ this value will change the dev_loss_tmo for all
+ FCFs discovered by this controller.
+
+ lesb_link_fail: Link Error Status Block (LESB) link failure count.
+
+ lesb_vlink_fail: Link Error Status Block (LESB) virtual link
+ failure count.
+
+ lesb_miss_fka: Link Error Status Block (LESB) missed FCoE
+ Initialization Protocol (FIP) Keep-Alives (FKA).
+
+ lesb_symb_err: Link Error Status Block (LESB) symbolic error count.
+
+ lesb_err_block: Link Error Status Block (LESB) block error count.
+
+ lesb_fcs_error: Link Error Status Block (LESB) Fibre Channel
+ Serivces error count.
+
+Notes: ctlr_X (global increment starting at 0)
+
+What: /sys/bus/fcoe/fcf_X
+Date: March 2012
+KernelVersion: TBD
+Contact: Robert Love <robert.w.love@intel.com>, devel@open-fcoe.org
+Description: 'FCoE FCF' instances on the fcoe bus. A FCF is a Fibre Channel
+ Forwarder, which is a FCoE switch that can accept FCoE
+ (Ethernet) packets, unpack them, and forward the embedded
+ Fibre Channel frames into a FC fabric. It can also take
+ outbound FC frames and pack them in Ethernet packets to
+ be sent to their destination on the Ethernet segment.
+Attributes:
+
+ fabric_name: Identifies the fabric that the FCF services.
+
+ switch_name: Identifies the FCF.
+
+ priority: The switch's priority amongst other FCFs on the same
+ fabric.
+
+ selected: 1 indicates that the switch has been selected for use;
+ 0 indicates that the swich will not be used.
+
+ fc_map: The Fibre Channel MAP
+
+ vfid: The Virtual Fabric ID
+
+ mac: The FCF's MAC address
+
+ fka_peroid: The FIP Keep-Alive peroid
+
+ fabric_state: The internal kernel state
+ "Unknown" - Initialization value
+ "Disconnected" - No link to the FCF/fabric
+ "Connected" - Host is connected to the FCF
+ "Deleted" - FCF is being removed from the system
+
+ dev_loss_tmo: The device loss timeout peroid for this FCF.
+
+Notes: A device loss infrastructre similar to the FC Transport's
+ is present in fcoe_sysfs. It is nice to have so that a
+ link flapping adapter doesn't continually advance the count
+ used to identify the discovered FCF. FCFs will exist in a
+ "Disconnected" state until either the timer expires and the
+ FCF becomes "Deleted" or the FCF is rediscovered and becomes
+ "Connected."
+
+
+Users: The first user of this interface will be the fcoeadm application,
+ which is commonly packaged in the fcoe-utils package.
--- /dev/null
+What: /sys/bus/i2c/devices/.../output_hvled[n]
+Date: April 2012
+KernelVersion: 3.5
+Contact: Johan Hovold <jhovold@gmail.com>
+Description:
+ Set the controlling backlight device for high-voltage current
+ sink HVLED[n] (n = 1, 2) (0, 1).
+
+What: /sys/bus/i2c/devices/.../output_lvled[n]
+Date: April 2012
+KernelVersion: 3.5
+Contact: Johan Hovold <jhovold@gmail.com>
+Description:
+ Set the controlling led device for low-voltage current sink
+ LVLED[n] (n = 1..5) (0..3).
Entries under /sys/bus/rbd/devices/<dev-id>/snap_<snap-name>
-------------------------------------------------------------
-id
+snap_id
The rados internal snapshot id assigned for this snapshot
-size
+snap_size
The size of the image when this snapshot was taken.
--- /dev/null
+What: /sys/class/backlight/<backlight>/als_channel
+Date: May 2012
+KernelVersion: 3.5
+Contact: Johan Hovold <jhovold@gmail.com>
+Description:
+ Get the ALS output channel used as input in
+ ALS-current-control mode (0, 1), where
+
+ 0 - out_current0 (backlight 0)
+ 1 - out_current1 (backlight 1)
+
+What: /sys/class/backlight/<backlight>/als_en
+Date: May 2012
+KernelVersion: 3.5
+Contact: Johan Hovold <jhovold@gmail.com>
+Description:
+ Enable ALS-current-control mode (0, 1).
+
+What: /sys/class/backlight/<backlight>/id
+Date: April 2012
+KernelVersion: 3.5
+Contact: Johan Hovold <jhovold@gmail.com>
+Description:
+ Get the id of this backlight (0, 1).
+
+What: /sys/class/backlight/<backlight>/linear
+Date: April 2012
+KernelVersion: 3.5
+Contact: Johan Hovold <jhovold@gmail.com>
+Description:
+ Set the brightness-mapping mode (0, 1), where
+
+ 0 - exponential mode
+ 1 - linear mode
+
+What: /sys/class/backlight/<backlight>/pwm
+Date: April 2012
+KernelVersion: 3.5
+Contact: Johan Hovold <jhovold@gmail.com>
+Description:
+ Set the PWM-input control mask (5 bits), where
+
+ bit 5 - PWM-input enabled in Zone 4
+ bit 4 - PWM-input enabled in Zone 3
+ bit 3 - PWM-input enabled in Zone 2
+ bit 2 - PWM-input enabled in Zone 1
+ bit 1 - PWM-input enabled in Zone 0
+ bit 0 - PWM-input enabled
--- /dev/null
+What: /sys/class/leds/<led>/als_channel
+Date: May 2012
+KernelVersion: 3.5
+Contact: Johan Hovold <jhovold@gmail.com>
+Description:
+ Set the ALS output channel to use as input in
+ ALS-current-control mode (1, 2), where
+
+ 1 - out_current1
+ 2 - out_current2
+
+What: /sys/class/leds/<led>/als_en
+Date: May 2012
+KernelVersion: 3.5
+Contact: Johan Hovold <jhovold@gmail.com>
+Description:
+ Enable ALS-current-control mode (0, 1).
+
+What: /sys/class/leds/<led>/falltime
+What: /sys/class/leds/<led>/risetime
+Date: April 2012
+KernelVersion: 3.5
+Contact: Johan Hovold <jhovold@gmail.com>
+Description:
+ Set the pattern generator fall and rise times (0..7), where
+
+ 0 - 2048 us
+ 1 - 262 ms
+ 2 - 524 ms
+ 3 - 1.049 s
+ 4 - 2.097 s
+ 5 - 4.194 s
+ 6 - 8.389 s
+ 7 - 16.78 s
+
+What: /sys/class/leds/<led>/id
+Date: April 2012
+KernelVersion: 3.5
+Contact: Johan Hovold <jhovold@gmail.com>
+Description:
+ Get the id of this led (0..3).
+
+What: /sys/class/leds/<led>/linear
+Date: April 2012
+KernelVersion: 3.5
+Contact: Johan Hovold <jhovold@gmail.com>
+Description:
+ Set the brightness-mapping mode (0, 1), where
+
+ 0 - exponential mode
+ 1 - linear mode
+
+What: /sys/class/leds/<led>/pwm
+Date: April 2012
+KernelVersion: 3.5
+Contact: Johan Hovold <jhovold@gmail.com>
+Description:
+ Set the PWM-input control mask (5 bits), where
+
+ bit 5 - PWM-input enabled in Zone 4
+ bit 4 - PWM-input enabled in Zone 3
+ bit 3 - PWM-input enabled in Zone 2
+ bit 2 - PWM-input enabled in Zone 1
+ bit 1 - PWM-input enabled in Zone 0
+ bit 0 - PWM-input enabled
Chapter 14: Allocating memory
The kernel provides the following general purpose memory allocators:
-kmalloc(), kzalloc(), kcalloc(), vmalloc(), and vzalloc(). Please refer to
-the API documentation for further information about them.
+kmalloc(), kzalloc(), kmalloc_array(), kcalloc(), vmalloc(), and
+vzalloc(). Please refer to the API documentation for further information
+about them.
The preferred form for passing a size of a struct is the following:
from void pointer to any other pointer type is guaranteed by the C programming
language.
+The preferred form for allocating an array is the following:
+
+ p = kmalloc_array(n, sizeof(...), ...);
+
+The preferred form for allocating a zeroed array is the following:
+
+ p = kcalloc(n, sizeof(...), ...);
+
+Both forms check for overflow on the allocation size n * sizeof(...),
+and return NULL if that occurred.
+
Chapter 15: The inline disease
page will eventually get charged for it (once it is uncharged from
the cgroup that brought it in -- this will happen on memory pressure).
+But see section 8.2: when moving a task to another cgroup, its pages may
+be recharged to the new cgroup, if move_charge_at_immigrate has been chosen.
+
Exception: If CONFIG_CGROUP_CGROUP_MEM_RES_CTLR_SWAP is not used.
When you do swapoff and make swapped-out pages of shmem(tmpfs) to
be backed into memory in force, charges for pages are accounted against the
caller of swapoff rather than the users of shmem.
-
2.4 Swap Extension (CONFIG_CGROUP_MEM_RES_CTLR_SWAP)
Swap Extension allows you to record charge for swap. A swapped-in page is
tasks have migrated away from it. (because we charge against pages, not
against tasks.)
-Such charges are freed or moved to their parent. At moving, both of RSS
-and CACHES are moved to parent.
-rmdir() may return -EBUSY if freeing/moving fails. See 5.1 also.
+We move the stats to root (if use_hierarchy==0) or parent (if
+use_hierarchy==1), and no change on the charge except uncharging
+from the child.
Charges recorded in swap information is not updated at removal of cgroup.
Recorded information is discarded and a cgroup which uses swap (swapcache)
will be charged as a new owner of it.
+About use_hierarchy, see Section 6.
5. Misc. interfaces.
Almost all pages tracked by this memory cgroup will be unmapped and freed.
Some pages cannot be freed because they are locked or in-use. Such pages are
- moved to parent and this cgroup will be empty. This may return -EBUSY if
- VM is too busy to free/move all pages immediately.
+ moved to parent(if use_hierarchy==1) or root (if use_hierarchy==0) and this
+ cgroup will be empty.
Typical use case of this interface is that calling this before rmdir().
Because rmdir() moves all pages to parent, some out-of-use page caches can be
moved to the parent. If you want to avoid that, force_empty will be useful.
+ About use_hierarchy, see Section 6.
+
5.2 stat file
memory.stat file includes following statistics
hierarchical_memsw_limit - # of bytes of memory+swap limit with regard to
hierarchy under which memory cgroup is.
-total_cache - sum of all children's "cache"
-total_rss - sum of all children's "rss"
-total_mapped_file - sum of all children's "cache"
-total_pgpgin - sum of all children's "pgpgin"
-total_pgpgout - sum of all children's "pgpgout"
-total_swap - sum of all children's "swap"
-total_inactive_anon - sum of all children's "inactive_anon"
-total_active_anon - sum of all children's "active_anon"
-total_inactive_file - sum of all children's "inactive_file"
-total_active_file - sum of all children's "active_file"
-total_unevictable - sum of all children's "unevictable"
+total_<counter> - # hierarchical version of <counter>, which in
+ addition to the cgroup's own value includes the
+ sum of all hierarchical children's values of
+ <counter>, i.e. total_cache
# The following additional stats are dependent on CONFIG_DEBUG_VM.
bit | what type of charges would be moved ?
-----+------------------------------------------------------------------------
0 | A charge of an anonymous page(or swap of it) used by the target task.
- | Those pages and swaps must be used only by the target task. You must
- | enable Swap Extension(see 2.4) to enable move of swap charges.
+ | You must enable Swap Extension(see 2.4) to enable move of swap charges.
-----+------------------------------------------------------------------------
1 | A charge of file pages(normal file, tmpfs file(e.g. ipc shared memory)
| and swaps of tmpfs file) mmapped by the target task. Unlike the case of
8.3 TODO
-- Implement madvise(2) to let users decide the vma to be moved or not to be
- moved.
- All of moving charge operations are done under cgroup_mutex. It's not good
behavior to hold the mutex too long, so we may need some trick.
The _locked routines imply that the res_counter->lock is taken.
+ f. void res_counter_uncharge_until
+ (struct res_counter *rc, struct res_counter *top,
+ unsinged long val)
+
+ Almost same as res_cunter_uncharge() but propagation of uncharge
+ stops when rc == top. This is useful when kill a res_coutner in
+ child cgroup.
+
2.1 Other accounting routines
There are more routines that may help you with common needs, like
--- /dev/null
+Lantiq SoC External Bus memory mapped GPIO controller
+
+By attaching hardware latches to the EBU it is possible to create output
+only gpios. This driver configures a special memory address, which when
+written to outputs 16 bit to the latches.
+
+The node describing the memory mapped GPIOs needs to be a child of the node
+describing the "lantiq,localbus".
+
+Required properties:
+- compatible : Should be "lantiq,gpio-mm-lantiq"
+- reg : Address and length of the register set for the device
+- #gpio-cells : Should be two. The first cell is the pin number and
+ the second cell is used to specify optional parameters (currently
+ unused).
+- gpio-controller : Marks the device node as a gpio controller.
+
+Optional properties:
+- lantiq,shadow : The default value that we shall assume as already set on the
+ shift register cascade.
+
+Example:
+
+localbus@0 {
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges = <0 0 0x0 0x3ffffff /* addrsel0 */
+ 1 0 0x4000000 0x4000010>; /* addsel1 */
+ compatible = "lantiq,localbus", "simple-bus";
+
+ gpio_mm0: gpio@4000000 {
+ compatible = "lantiq,gpio-mm";
+ reg = <1 0x0 0x10>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ lantiq,shadow = <0x77f>
+ };
+}
--- /dev/null
+Lantiq SoC Serial To Parallel (STP) GPIO controller
+
+The Serial To Parallel (STP) is found on MIPS based Lantiq socs. It is a
+peripheral controller used to drive external shift register cascades. At most
+3 groups of 8 bits can be driven. The hardware is able to allow the DSL modem
+to drive the 2 LSBs of the cascade automatically.
+
+
+Required properties:
+- compatible : Should be "lantiq,gpio-stp-xway"
+- reg : Address and length of the register set for the device
+- #gpio-cells : Should be two. The first cell is the pin number and
+ the second cell is used to specify optional parameters (currently
+ unused).
+- gpio-controller : Marks the device node as a gpio controller.
+
+Optional properties:
+- lantiq,shadow : The default value that we shall assume as already set on the
+ shift register cascade.
+- lantiq,groups : Set the 3 bit mask to select which of the 3 groups are enabled
+ in the shift register cascade.
+- lantiq,dsl : The dsl core can control the 2 LSBs of the gpio cascade. This 2 bit
+ property can enable this feature.
+- lantiq,phy1 : The gphy1 core can control 3 bits of the gpio cascade.
+- lantiq,phy2 : The gphy2 core can control 3 bits of the gpio cascade.
+- lantiq,rising : use rising instead of falling edge for the shift register
+
+Example:
+
+gpio1: stp@E100BB0 {
+ compatible = "lantiq,gpio-stp-xway";
+ reg = <0xE100BB0 0x40>;
+ #gpio-cells = <2>;
+ gpio-controller;
+
+ lantiq,shadow = <0xffff>;
+ lantiq,groups = <0x7>;
+ lantiq,dsl = <0x3>;
+ lantiq,phy1 = <0x7>;
+ lantiq,phy2 = <0x7>;
+ /* lantiq,rising; */
+};
--- /dev/null
+NVIDIA Tegra 20 GART
+
+Required properties:
+- compatible: "nvidia,tegra20-gart"
+- reg: Two pairs of cells specifying the physical address and size of
+ the memory controller registers and the GART aperture respectively.
+
+Example:
+
+ gart {
+ compatible = "nvidia,tegra20-gart";
+ reg = <0x7000f024 0x00000018 /* controller registers */
+ 0x58000000 0x02000000>; /* GART aperture */
+ };
--- /dev/null
+* Dialog DA9052/53 Power Management Integrated Circuit (PMIC)
+
+Required properties:
+- compatible : Should be "dlg,da9052", "dlg,da9053-aa",
+ "dlg,da9053-ab", or "dlg,da9053-bb"
+
+Sub-nodes:
+- regulators : Contain the regulator nodes. The DA9052/53 regulators are
+ bound using their names as listed below:
+
+ buck0 : regulator BUCK0
+ buck1 : regulator BUCK1
+ buck2 : regulator BUCK2
+ buck3 : regulator BUCK3
+ ldo4 : regulator LDO4
+ ldo5 : regulator LDO5
+ ldo6 : regulator LDO6
+ ldo7 : regulator LDO7
+ ldo8 : regulator LDO8
+ ldo9 : regulator LDO9
+ ldo10 : regulator LDO10
+ ldo11 : regulator LDO11
+ ldo12 : regulator LDO12
+ ldo13 : regulator LDO13
+
+ The bindings details of individual regulator device can be found in:
+ Documentation/devicetree/bindings/regulator/regulator.txt
+
+Examples:
+
+i2c@63fc8000 { /* I2C1 */
+ status = "okay";
+
+ pmic: dialog@48 {
+ compatible = "dlg,da9053-aa";
+ reg = <0x48>;
+
+ regulators {
+ buck0 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <2075000>;
+ };
+
+ buck1 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <2075000>;
+ };
+
+ buck2 {
+ regulator-min-microvolt = <925000>;
+ regulator-max-microvolt = <2500000>;
+ };
+
+ buck3 {
+ regulator-min-microvolt = <925000>;
+ regulator-max-microvolt = <2500000>;
+ };
+ };
+ };
+};
--- /dev/null
+TPS65910 Power Management Integrated Circuit
+
+Required properties:
+- compatible: "ti,tps65910" or "ti,tps65911"
+- reg: I2C slave address
+- interrupts: the interrupt outputs of the controller
+- #gpio-cells: number of cells to describe a GPIO, this should be 2.
+ The first cell is the GPIO number.
+ The second cell is used to specify additional options <unused>.
+- gpio-controller: mark the device as a GPIO controller
+- #interrupt-cells: the number of cells to describe an IRQ, this should be 2.
+ The first cell is the IRQ number.
+ The second cell is the flags, encoded as the trigger masks from
+ Documentation/devicetree/bindings/interrupts.txt
+- regulators: This is the list of child nodes that specify the regulator
+ initialization data for defined regulators. Not all regulators for the given
+ device need to be present. The definition for each of these nodes is defined
+ using the standard binding for regulators found at
+ Documentation/devicetree/bindings/regulator/regulator.txt.
+
+ The valid names for regulators are:
+ tps65910: vrtc, vio, vdd1, vdd2, vdd3, vdig1, vdig2, vpll, vdac, vaux1,
+ vaux2, vaux33, vmmc
+ tps65911: vrtc, vio, vdd1, vdd3, vddctrl, ldo1, ldo2, ldo3, ldo4, ldo5,
+ ldo6, ldo7, ldo8
+
+Optional properties:
+- ti,vmbch-threshold: (tps65911) main battery charged threshold
+ comparator. (see VMBCH_VSEL in TPS65910 datasheet)
+- ti,vmbch2-threshold: (tps65911) main battery discharged threshold
+ comparator. (see VMBCH_VSEL in TPS65910 datasheet)
+- ti,en-gpio-sleep: enable sleep control for gpios
+ There should be 9 entries here, one for each gpio.
+
+Regulator Optional properties:
+- ti,regulator-ext-sleep-control: enable external sleep
+ control through external inputs [0 (not enabled), 1 (EN1), 2 (EN2) or 4(EN3)]
+ If this property is not defined, it defaults to 0 (not enabled).
+
+Example:
+
+ pmu: tps65910@d2 {
+ compatible = "ti,tps65910";
+ reg = <0xd2>;
+ interrupt-parent = <&intc>;
+ interrupts = < 0 118 0x04 >;
+
+ #gpio-cells = <2>;
+ gpio-controller;
+
+ #interrupt-cells = <2>;
+ interrupt-controller;
+
+ ti,vmbch-threshold = 0;
+ ti,vmbch2-threshold = 0;
+
+ ti,en-gpio-sleep = <0 0 1 0 0 0 0 0 0>;
+
+ regulators {
+ vdd1_reg: vdd1 {
+ regulator-min-microvolt = < 600000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-always-on;
+ regulator-boot-on;
+ ti,regulator-ext-sleep-control = <0>;
+ };
+ vdd2_reg: vdd2 {
+ regulator-min-microvolt = < 600000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-always-on;
+ regulator-boot-on;
+ ti,regulator-ext-sleep-control = <4>;
+ };
+ vddctrl_reg: vddctrl {
+ regulator-min-microvolt = < 600000>;
+ regulator-max-microvolt = <1400000>;
+ regulator-always-on;
+ regulator-boot-on;
+ ti,regulator-ext-sleep-control = <0>;
+ };
+ vio_reg: vio {
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ ti,regulator-ext-sleep-control = <1>;
+ };
+ ldo1_reg: ldo1 {
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <3300000>;
+ ti,regulator-ext-sleep-control = <0>;
+ };
+ ldo2_reg: ldo2 {
+ regulator-min-microvolt = <1050000>;
+ regulator-max-microvolt = <1050000>;
+ ti,regulator-ext-sleep-control = <0>;
+ };
+ ldo3_reg: ldo3 {
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <3300000>;
+ ti,regulator-ext-sleep-control = <0>;
+ };
+ ldo4_reg: ldo4 {
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ ti,regulator-ext-sleep-control = <0>;
+ };
+ ldo5_reg: ldo5 {
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <3300000>;
+ ti,regulator-ext-sleep-control = <0>;
+ };
+ ldo6_reg: ldo6 {
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ ti,regulator-ext-sleep-control = <0>;
+ };
+ ldo7_reg: ldo7 {
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-always-on;
+ regulator-boot-on;
+ ti,regulator-ext-sleep-control = <1>;
+ };
+ ldo8_reg: ldo8 {
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ ti,regulator-ext-sleep-control = <1>;
+ };
+ };
+ };
--- /dev/null
+Texas Instruments TWL6040 family
+
+The TWL6040s are 8-channel high quality low-power audio codecs providing audio
+and vibra functionality on OMAP4+ platforms.
+They are connected ot the host processor via i2c for commands, McPDM for audio
+data and commands.
+
+Required properties:
+- compatible : Must be "ti,twl6040";
+- reg: must be 0x4b for i2c address
+- interrupts: twl6040 has one interrupt line connecteded to the main SoC
+- interrupt-parent: The parent interrupt controller
+- twl6040,audpwron-gpio: Power on GPIO line for the twl6040
+
+- vio-supply: Regulator for the twl6040 VIO supply
+- v2v1-supply: Regulator for the twl6040 V2V1 supply
+
+Optional properties, nodes:
+- enable-active-high: To power on the twl6040 during boot.
+
+Vibra functionality
+Required properties:
+- vddvibl-supply: Regulator for the left vibra motor
+- vddvibr-supply: Regulator for the right vibra motor
+- vibra { }: Configuration section for vibra parameters containing the following
+ properties:
+- ti,vibldrv-res: Resistance parameter for left driver
+- ti,vibrdrv-res: Resistance parameter for right driver
+- ti,viblmotor-res: Resistance parameter for left motor
+- ti,viblmotor-res: Resistance parameter for right motor
+
+Optional properties within vibra { } section:
+- vddvibl_uV: If the vddvibl default voltage need to be changed
+- vddvibr_uV: If the vddvibr default voltage need to be changed
+
+Example:
+&i2c1 {
+ twl6040: twl@4b {
+ compatible = "ti,twl6040";
+ reg = <0x4b>;
+
+ interrupts = <0 119 4>;
+ interrupt-parent = <&gic>;
+ twl6040,audpwron-gpio = <&gpio4 31 0>;
+
+ vio-supply = <&v1v8>;
+ v2v1-supply = <&v2v1>;
+ enable-active-high;
+
+ /* regulators for vibra motor */
+ vddvibl-supply = <&vbat>;
+ vddvibr-supply = <&vbat>;
+
+ vibra {
+ /* Vibra driver, motor resistance parameters */
+ ti,vibldrv-res = <8>;
+ ti,vibrdrv-res = <3>;
+ ti,viblmotor-res = <10>;
+ ti,vibrmotor-res = <10>;
+ };
+ };
+};
--- /dev/null
+* NXP LPC32xx SoC Real Time Clock controller
+
+Required properties:
+- compatible: must be "nxp,lpc3220-rtc"
+- reg: physical base address of the controller and length of memory mapped
+ region.
+- interrupts: The RTC interrupt
+
+Example:
+
+ rtc@40024000 {
+ compatible = "nxp,lpc3220-rtc";
+ reg = <0x40024000 0x1000>;
+ interrupts = <52 0>;
+ };
--- /dev/null
+* SPEAr RTC
+
+Required properties:
+- compatible : "st,spear600-rtc"
+- reg : Address range of the rtc registers
+- interrupt-parent: Should be the phandle for the interrupt controller
+ that services interrupts for this device
+- interrupt: Should contain the rtc interrupt number
+
+Example:
+
+ rtc@fc000000 {
+ compatible = "st,spear600-rtc";
+ reg = <0xfc000000 0x1000>;
+ interrupt-parent = <&vic1>;
+ interrupts = <12>;
+ };
Who: Ludovic Desroches <ludovic.desroches@atmel.com>
----------------------------
+
+What: net/wanrouter/
+When: June 2013
+Why: Unsupported/unmaintained/unused since 2.6
+
+----------------------------
ssize_t (*getxattr) (struct dentry *, const char *, void *, size_t);
ssize_t (*listxattr) (struct dentry *, char *, size_t);
int (*removexattr) (struct dentry *, const char *);
- void (*truncate_range)(struct inode *, loff_t, loff_t);
int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start, u64 len);
+ void (*update_time)(struct inode *, struct timespec *, int);
locking rules:
all may block
getxattr: no
listxattr: no
removexattr: yes
-truncate_range: yes
fiemap: no
+update_time: no
+
Additionally, ->rmdir(), ->unlink() and ->rename() have ->i_mutex on
victim.
cross-directory ->rename() has (per-superblock) ->s_vfs_rename_sem.
3.4 /proc/<pid>/coredump_filter - Core dump filtering settings
3.5 /proc/<pid>/mountinfo - Information about mounts
3.6 /proc/<pid>/comm & /proc/<pid>/task/<tid>/comm
+ 3.7 /proc/<pid>/task/<tid>/children - Information about task children
4 Configuring procfs
4.1 Mount options
start_data address above which program data+bss is placed
end_data address below which program data+bss is placed
start_brk address above which program heap can be expanded with brk()
+ arg_start address above which program command line is placed
+ arg_end address below which program command line is placed
+ env_start address above which program environment is placed
+ env_end address below which program environment is placed
+ exit_code the thread's exit_code in the form reported by the waitpid system call
..............................................................................
The /proc/PID/maps file containing the currently mapped memory regions and
VmallocTotal: 112216 kB
VmallocUsed: 428 kB
VmallocChunk: 111088 kB
+AnonHugePages: 49152 kB
MemTotal: Total usable ram (i.e. physical ram minus a few reserved
bits and the kernel binary code)
Dirty: Memory which is waiting to get written back to the disk
Writeback: Memory which is actively being written back to the disk
AnonPages: Non-file backed pages mapped into userspace page tables
+AnonHugePages: Non-file backed huge pages mapped into userspace page tables
Mapped: files which have been mmaped, such as libraries
Slab: in-kernel data structures cache
SReclaimable: Part of Slab, that might be reclaimed, such as caches
comm value.
+3.7 /proc/<pid>/task/<tid>/children - Information about task children
+-------------------------------------------------------------------------
+This file provides a fast way to retrieve first level children pids
+of a task pointed by <pid>/<tid> pair. The format is a space separated
+stream of pids.
+
+Note the "first level" here -- if a child has own children they will
+not be listed here, one needs to read /proc/<children-pid>/task/<tid>/children
+to obtain the descendants.
+
+Since this interface is intended to be fast and cheap it doesn't
+guarantee to provide precise results and some children might be
+skipped, especially if they've exited right after we printed their
+pids, so one need to either stop or freeze processes being inspected
+if precise results are needed.
+
+
------------------------------------------------------------------------------
Configuring procfs
------------------------------------------------------------------------------
ssize_t (*getxattr) (struct dentry *, const char *, void *, size_t);
ssize_t (*listxattr) (struct dentry *, char *, size_t);
int (*removexattr) (struct dentry *, const char *);
- void (*truncate_range)(struct inode *, loff_t, loff_t);
+ void (*update_time)(struct inode *, struct timespec *, int);
};
Again, all methods are called without any locks being held, unless
removexattr: called by the VFS to remove an extended attribute from
a file. This method is called by removexattr(2) system call.
- truncate_range: a method provided by the underlying filesystem to truncate a
- range of blocks , i.e. punch a hole somewhere in a file.
-
+ update_time: called by the VFS to update a specific time or the i_version of
+ an inode. If this is not defined the VFS will update the inode itself
+ and call mark_inode_dirty_sync.
The Address Space Object
========================
----------------------
This describes how the VFS can manipulate an open file. As of kernel
-2.6.22, the following members are defined:
+3.5, the following members are defined:
struct file_operations {
struct module *owner;
int (*flock) (struct file *, int, struct file_lock *);
ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, size_t, unsigned int);
ssize_t (*splice_read)(struct file *, struct pipe_inode_info *, size_t, unsigned int);
+ int (*setlease)(struct file *, long arg, struct file_lock **);
+ long (*fallocate)(struct file *, int mode, loff_t offset, loff_t len);
};
Again, all methods are called without any locks being held, unless
splice_read: called by the VFS to splice data from file to a pipe. This
method is used by the splice(2) system call
+ setlease: called by the VFS to set or release a file lock lease.
+ setlease has the file_lock_lock held and must not sleep.
+
+ fallocate: called by the VFS to preallocate blocks or punch a hole.
+
Note that the file operations are implemented by the specific
filesystem in which the inode resides. When opening a device node
(character or block special) most filesystems will call special
adapters typically can not do these)
I2C_FUNC_10BIT_ADDR Handles the 10-bit address extensions
I2C_FUNC_PROTOCOL_MANGLING Knows about the I2C_M_IGNORE_NAK,
- I2C_M_REV_DIR_ADDR, I2C_M_NOSTART and
- I2C_M_NO_RD_ACK flags (which modify the
- I2C protocol!)
+ I2C_M_REV_DIR_ADDR and I2C_M_NO_RD_ACK
+ flags (which modify the I2C protocol!)
+ I2C_FUNC_NOSTART Can skip repeated start sequence
I2C_FUNC_SMBUS_QUICK Handles the SMBus write_quick command
I2C_FUNC_SMBUS_READ_BYTE Handles the SMBus read_byte command
I2C_FUNC_SMBUS_WRITE_BYTE Handles the SMBus write_byte command
emulated by a real I2C adapter (using
the transparent emulation layer)
+In kernel versions prior to 3.5 I2C_FUNC_NOSTART was implemented as
+part of I2C_FUNC_PROTOCOL_MANGLING.
+
ADAPTER IMPLEMENTATION
----------------------
Modified transactions
=====================
-We have found some I2C devices that needs the following modifications:
+The following modifications to the I2C protocol can also be generated,
+with the exception of I2C_M_NOSTART these are usually only needed to
+work around device issues:
Flag I2C_M_NOSTART:
In a combined transaction, no 'S Addr Wr/Rd [A]' is generated at some
we do not generate Addr, but we do generate the startbit S. This will
probably confuse all other clients on your bus, so don't try this.
+ This is often used to gather transmits from multiple data buffers in
+ system memory into something that appears as a single transfer to the
+ I2C device but may also be used between direction changes by some
+ rare devices.
+
Flags I2C_M_REV_DIR_ADDR
This toggles the Rd/Wr flag. That is, if you want to do a write, but
need to emit an Rd instead of a Wr, or vice versa, you set this
requirements as needed. This option
does not override iommu=pt
+ amd_iommu_dump= [HW,X86-64]
+ Enable AMD IOMMU driver option to dump the ACPI table
+ for AMD IOMMU. With this option enabled, AMD IOMMU
+ driver will print ACPI tables for AMD IOMMU during
+ IOMMU initialization.
+
amijoy.map= [HW,JOY] Amiga joystick support
Map of devices attached to JOY0DAT and JOY1DAT
Format: <a>,<b>
--- /dev/null
+LED Transient Trigger
+=====================
+
+The leds timer trigger does not currently have an interface to activate
+a one shot timer. The current support allows for setting two timers, one for
+specifying how long a state to be on, and the second for how long the state
+to be off. The delay_on value specifies the time period an LED should stay
+in on state, followed by a delay_off value that specifies how long the LED
+should stay in off state. The on and off cycle repeats until the trigger
+gets deactivated. There is no provision for one time activation to implement
+features that require an on or off state to be held just once and then stay in
+the original state forever.
+
+Without one shot timer interface, user space can still use timer trigger to
+set a timer to hold a state, however when user space application crashes or
+goes away without deactivating the timer, the hardware will be left in that
+state permanently.
+
+As a specific example of this use-case, let's look at vibrate feature on
+phones. Vibrate function on phones is implemented using PWM pins on SoC or
+PMIC. There is a need to activate one shot timer to control the vibrate
+feature, to prevent user space crashes leaving the phone in vibrate mode
+permanently causing the battery to drain.
+
+Transient trigger addresses the need for one shot timer activation. The
+transient trigger can be enabled and disabled just like the other leds
+triggers.
+
+When an led class device driver registers itself, it can specify all leds
+triggers it supports and a default trigger. During registration, activation
+routine for the default trigger gets called. During registration of an led
+class device, the LED state does not change.
+
+When the driver unregisters, deactivation routine for the currently active
+trigger will be called, and LED state is changed to LED_OFF.
+
+Driver suspend changes the LED state to LED_OFF and resume doesn't change
+the state. Please note that there is no explicit interaction between the
+suspend and resume actions and the currently enabled trigger. LED state
+changes are suspended while the driver is in suspend state. Any timers
+that are active at the time driver gets suspended, continue to run, without
+being able to actually change the LED state. Once driver is resumed, triggers
+start functioning again.
+
+LED state changes are controlled using brightness which is a common led
+class device property. When brightness is set to 0 from user space via
+echo 0 > brightness, it will result in deactivating the current trigger.
+
+Transient trigger uses standard register and unregister interfaces. During
+trigger registration, for each led class device that specifies this trigger
+as its default trigger, trigger activation routine will get called. During
+registration, the LED state does not change, unless there is another trigger
+active, in which case LED state changes to LED_OFF.
+
+During trigger unregistration, LED state gets changed to LED_OFF.
+
+Transient trigger activation routine doesn't change the LED state. It
+creates its properties and does its initialization. Transient trigger
+deactivation routine, will cancel any timer that is active before it cleans
+up and removes the properties it created. It will restore the LED state to
+non-transient state. When driver gets suspended, irrespective of the transient
+state, the LED state changes to LED_OFF.
+
+Transient trigger can be enabled and disabled from user space on led class
+devices, that support this trigger as shown below:
+
+echo transient > trigger
+echo none > trigger
+
+NOTE: Add a new property trigger state to control the state.
+
+This trigger exports three properties, activate, state, and duration. When
+transient trigger is activated these properties are set to default values.
+
+- duration allows setting timer value in msecs. The initial value is 0.
+- activate allows activating and deactivating the timer specified by
+ duration as needed. The initial and default value is 0. This will allow
+ duration to be set after trigger activation.
+- state allows user to specify a transient state to be held for the specified
+ duration.
+
+ activate - one shot timer activate mechanism.
+ 1 when activated, 0 when deactivated.
+ default value is zero when transient trigger is enabled,
+ to allow duration to be set.
+
+ activate state indicates a timer with a value of specified
+ duration running.
+ deactivated state indicates that there is no active timer
+ running.
+
+ duration - one shot timer value. When activate is set, duration value
+ is used to start a timer that runs once. This value doesn't
+ get changed by the trigger unless user does a set via
+ echo new_value > duration
+
+ state - transient state to be held. It has two values 0 or 1. 0 maps
+ to LED_OFF and 1 maps to LED_FULL. The specified state is
+ held for the duration of the one shot timer and then the
+ state gets changed to the non-transient state which is the
+ inverse of transient state.
+ If state = LED_FULL, when the timer runs out the state will
+ go back to LED_OFF.
+ If state = LED_OFF, when the timer runs out the state will
+ go back to LED_FULL.
+ Please note that current LED state is not checked prior to
+ changing the state to the specified state.
+ Driver could map these values to inverted depending on the
+ default states it defines for the LED in its brightness_set()
+ interface which is called from the led brightness_set()
+ interfaces to control the LED state.
+
+When timer expires activate goes back to deactivated state, duration is left
+at the set value to be used when activate is set at a future time. This will
+allow user app to set the time once and activate it to run it once for the
+specified value as needed. When timer expires, state is restored to the
+non-transient state which is the inverse of the transient state.
+
+ echo 1 > activate - starts timer = duration when duration is not 0.
+ echo 0 > activate - cancels currently running timer.
+ echo n > duration - stores timer value to be used upon next
+ activate. Currently active timer if
+ any, continues to run for the specified time.
+ echo 0 > duration - stores timer value to be used upon next
+ activate. Currently active timer if any,
+ continues to run for the specified time.
+ echo 1 > state - stores desired transient state LED_FULL to be
+ held for the specified duration.
+ echo 0 > state - stores desired transient state LED_OFF to be
+ held for the specified duration.
+
+What is not supported:
+======================
+- Timer activation is one shot and extending and/or shortening the timer
+ is not supported.
+
+Example use-case 1:
+ echo transient > trigger
+ echo n > duration
+ echo 1 > state
+repeat the following step as needed:
+ echo 1 > activate - start timer = duration to run once
+ echo 1 > activate - start timer = duration to run once
+ echo none > trigger
+
+This trigger is intended to be used for for the following example use cases:
+ - Control of vibrate (phones, tablets etc.) hardware by user space app.
+ - Use of LED by user space app as activity indicator.
+ - Use of LED by user space app as a kind of watchdog indicator -- as
+ long as the app is alive, it can keep the LED illuminated, if it dies
+ the LED will be extinguished automatically.
+ - Use by any user space app that needs a transient GPIO output.
Normally, the platform will need to resume and suspend some devices
that are used by Charger Manager.
+* Support for premature full-battery event handling
+ If the battery voltage drops by "fullbatt_vchkdrop_uV" after
+ "fullbatt_vchkdrop_ms" from the full-battery event, the framework
+ restarts charging. This check is also performed while suspended by
+ setting wakeup time accordingly and using suspend_again.
+
+* Support for uevent-notify
+ With the charger-related events, the device sends
+ notification to users with UEVENT.
+
2. Global Charger-Manager Data related with suspend_again
========================================================
In order to setup Charger Manager with suspend-again feature
multiple instances of Charger Manager share the same charger_global_desc
and it will manage in-suspend monitoring for all instances of Charger Manager.
-The user needs to provide all the two entries properly in order to activate
+The user needs to provide all the three entries properly in order to activate
in-suspend monitoring:
struct charger_global_desc {
same struct. If there is any other wakeup source triggered the
wakeup, it should return false. If the "rtc" is the only wakeup
reason, it should return true.
+
+bool assume_timer_stops_in_suspend;
+ : if true, Charger Manager assumes that
+ the timer (CM uses jiffies as timer) stops during suspend. Then, CM
+ assumes that the suspend-duration is same as the alarm length.
};
3. How to setup suspend_again
CM_POLL_CHARGING_ONLY: poll this battery if and only if the
battery is being charged.
+unsigned int fullbatt_vchkdrop_ms;
+unsigned int fullbatt_vchkdrop_uV;
+ : If both have non-zero values, Charger Manager will check the
+ battery voltage drop fullbatt_vchkdrop_ms after the battery is fully
+ charged. If the voltage drop is over fullbatt_vchkdrop_uV, Charger
+ Manager will try to recharge the battery by disabling and enabling
+ chargers. Recharge with voltage drop condition only (without delay
+ condition) is needed to be implemented with hardware interrupts from
+ fuel gauges or charger devices/chips.
+
unsigned int fullbatt_uV;
: If specified with a non-zero value, Charger Manager assumes
that the battery is full (capacity = 100) if the battery is not being
this battery every polling_interval_ms or more frequently.
enum data_source battery_present;
+ : CM_BATTERY_PRESENT: assume that the battery exists.
+ CM_NO_BATTERY: assume that the battery does not exists.
CM_FUEL_GAUGE: get battery presence information from fuel gauge.
CM_CHARGER_STAT: get battery presence from chargers.
the value of measure_battery_temp.
};
-5. Other Considerations
+5. Notify Charger-Manager of charger events: cm_notify_event()
+=========================================================
+If there is an charger event is required to notify
+Charger Manager, a charger device driver that triggers the event can call
+cm_notify_event(psy, type, msg) to notify the corresponding Charger Manager.
+In the function, psy is the charger driver's power_supply pointer, which is
+associated with Charger-Manager. The parameter "type"
+is the same as irq's type (enum cm_event_types). The event message "msg" is
+optional and is effective only if the event type is "UNDESCRIBED" or "OTHERS".
+
+6. Other Considerations
=======================
At the charger/battery-related events such as battery-pulled-out,
HEALTH - represents health of the battery, values corresponds to
POWER_SUPPLY_HEALTH_*, defined in battery.h.
+VOLTAGE_OCV - open circuit voltage of the battery.
+
VOLTAGE_MAX_DESIGN, VOLTAGE_MIN_DESIGN - design values for maximal and
minimal power supply voltages. Maximal/minimal means values of voltages
when battery considered "full"/"empty" at normal conditions. Yes, there is
maximum message size value (it is every message queue's attribute set during
its creation).
+/proc/sys/fs/mqueue/msg_default is a read/write file for setting/getting the
+default number of messages in a queue value if attr parameter of mq_open(2) is
+NULL. If it exceed msg_max, the default value is initialized msg_max.
+
+/proc/sys/fs/mqueue/msgsize_default is a read/write file for setting/getting
+the default message size value if attr parameter of mq_open(2) is NULL. If it
+exceed msgsize_max, the default value is initialized msgsize_max.
4. /proc/sys/fs/epoll - Configuration options for the epoll interface
--------------------------------------------------------
* Bits 0-4 swap type if swapped
* Bits 5-54 swap offset if swapped
* Bits 55-60 page shift (page size = 1<<page shift)
- * Bit 61 reserved for future use
+ * Bit 61 page is file-page or shared-anon
* Bit 62 page swapped
* Bit 63 page present
application that could have been using hugepages. This also applies to
the regions registered in khugepaged.
+== Monitoring usage ==
+
+The number of transparent huge pages currently used by the system is
+available by reading the AnonHugePages field in /proc/meminfo. To
+identify what applications are using transparent huge pages, it is
+necessary to read /proc/PID/smaps and count the AnonHugePages fields
+for each mapping. Note that reading the smaps file is expensive and
+reading it frequently will incur overhead.
+
+There are a number of counters in /proc/vmstat that may be used to
+monitor how successfully the system is providing huge pages for use.
+
+thp_fault_alloc is incremented every time a huge page is successfully
+ allocated to handle a page fault. This applies to both the
+ first time a page is faulted and for COW faults.
+
+thp_collapse_alloc is incremented by khugepaged when it has found
+ a range of pages to collapse into one huge page and has
+ successfully allocated a new huge page to store the data.
+
+thp_fault_fallback is incremented if a page fault fails to allocate
+ a huge page and instead falls back to using small pages.
+
+thp_collapse_alloc_failed is incremented if khugepaged found a range
+ of pages that should be collapsed into one huge page but failed
+ the allocation.
+
+thp_split is incremented every time a huge page is split into base
+ pages. This can happen for a variety of reasons but a common
+ reason is that a huge page is old and is being reclaimed.
+
+As the system ages, allocating huge pages may be expensive as the
+system uses memory compaction to copy data around memory to free a
+huge page for use. There are some counters in /proc/vmstat to help
+monitor this overhead.
+
+compact_stall is incremented every time a process stalls to run
+ memory compaction so that a huge page is free for use.
+
+compact_success is incremented if the system compacted memory and
+ freed a huge page for use.
+
+compact_fail is incremented if the system tries to compact memory
+ but failed.
+
+compact_pages_moved is incremented each time a page is moved. If
+ this value is increasing rapidly, it implies that the system
+ is copying a lot of data to satisfy the huge page allocation.
+ It is possible that the cost of copying exceeds any savings
+ from reduced TLB misses.
+
+compact_pagemigrate_failed is incremented when the underlying mechanism
+ for moving a page failed.
+
+compact_blocks_moved is incremented each time memory compaction examines
+ a huge page aligned range of pages.
+
+It is possible to establish how long the stalls were using the function
+tracer to record how long was spent in __alloc_pages_nodemask and
+using the mm_page_alloc tracepoint to identify which allocations were
+for huge pages.
+
== get_user_pages and follow_page ==
get_user_pages and follow_page if run on a hugepage, will return the
The Linux WatchDog Timer Driver Core kernel API.
===============================================
-Last reviewed: 16-Mar-2012
+Last reviewed: 22-May-2012
Wim Van Sebroeck <wim@iguana.be>
The watchdog device structure looks like this:
struct watchdog_device {
+ int id;
+ struct cdev cdev;
+ struct device *dev;
+ struct device *parent;
const struct watchdog_info *info;
const struct watchdog_ops *ops;
unsigned int bootstatus;
unsigned int min_timeout;
unsigned int max_timeout;
void *driver_data;
+ struct mutex lock;
unsigned long status;
};
It contains following fields:
+* id: set by watchdog_register_device, id 0 is special. It has both a
+ /dev/watchdog0 cdev (dynamic major, minor 0) as well as the old
+ /dev/watchdog miscdev. The id is set automatically when calling
+ watchdog_register_device.
+* cdev: cdev for the dynamic /dev/watchdog<id> device nodes. This
+ field is also populated by watchdog_register_device.
+* dev: device under the watchdog class (created by watchdog_register_device).
+* parent: set this to the parent device (or NULL) before calling
+ watchdog_register_device.
* info: a pointer to a watchdog_info structure. This structure gives some
additional information about the watchdog timer itself. (Like it's unique name)
* ops: a pointer to the list of watchdog operations that the watchdog supports.
* driver_data: a pointer to the drivers private data of a watchdog device.
This data should only be accessed via the watchdog_set_drvdata and
watchdog_get_drvdata routines.
+* lock: Mutex for WatchDog Timer Driver Core internal use only.
* status: this field contains a number of status bits that give extra
information about the status of the device (Like: is the watchdog timer
running/active, is the nowayout bit set, is the device opened via
unsigned int (*status)(struct watchdog_device *);
int (*set_timeout)(struct watchdog_device *, unsigned int);
unsigned int (*get_timeleft)(struct watchdog_device *);
+ void (*ref)(struct watchdog_device *);
+ void (*unref)(struct watchdog_device *);
long (*ioctl)(struct watchdog_device *, unsigned int, unsigned long);
};
driver's operations. This module owner will be used to lock the module when
the watchdog is active. (This to avoid a system crash when you unload the
module and /dev/watchdog is still open).
+
+If the watchdog_device struct is dynamically allocated, just locking the module
+is not enough and a driver also needs to define the ref and unref operations to
+ensure the structure holding the watchdog_device does not go away.
+
+The simplest (and usually sufficient) implementation of this is to:
+1) Add a kref struct to the same structure which is holding the watchdog_device
+2) Define a release callback for the kref which frees the struct holding both
+3) Call kref_init on this kref *before* calling watchdog_register_device()
+4) Define a ref operation calling kref_get on this kref
+5) Define a unref operation calling kref_put on this kref
+6) When it is time to cleanup:
+ * Do not kfree() the struct holding both, the last kref_put will do this!
+ * *After* calling watchdog_unregister_device() call kref_put on the kref
+
Some operations are mandatory and some are optional. The mandatory operations
are:
* start: this is a pointer to the routine that starts the watchdog timer
(Note: the WDIOF_SETTIMEOUT needs to be set in the options field of the
watchdog's info structure).
* get_timeleft: this routines returns the time that's left before a reset.
+* ref: the operation that calls kref_get on the kref of a dynamically
+ allocated watchdog_device struct.
+* unref: the operation that calls kref_put on the kref of a dynamically
+ allocated watchdog_device struct.
* ioctl: if this routine is present then it will be called first before we do
our own internal ioctl call handling. This routine should return -ENOIOCTLCMD
if a command is not supported. The parameters that are passed to the ioctl
(This bit should only be used by the WatchDog Timer Driver Core).
* WDOG_NO_WAY_OUT: this bit stores the nowayout setting for the watchdog.
If this bit is set then the watchdog timer will not be able to stop.
+* WDOG_UNREGISTERED: this bit gets set by the WatchDog Timer Driver Core
+ after calling watchdog_unregister_device, and then checked before calling
+ any watchdog_ops, so that you can be sure that no operations (other then
+ unref) will get called after unregister, even if userspace still holds a
+ reference to /dev/watchdog
To set the WDOG_NO_WAY_OUT status bit (before registering your watchdog
timer device) you can either:
wd1_timeout: Default watchdog1 timeout in 1/10secs
wd2_timeout: Default watchdog2 timeout in 1/10secs
-------------------------------------------------
+da9052wdt:
+timeout: Watchdog timeout in seconds. 2<= timeout <=131, default=2.048s
+nowayout: Watchdog cannot be stopped once started
+ (default=kernel config parameter)
+-------------------------------------------------
davinci_wdt:
heartbeat: Watchdog heartbeat period in seconds from 1 to 600, default 60
-------------------------------------------------
F: drivers/base/firmware*.c
F: include/linux/firmware.h
+FLOPPY DRIVER
+M: Jiri Kosina <jkosina@suse.cz>
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/floppy.git
+S: Odd fixes
+F: drivers/block/floppy.c
+
FPU EMULATOR
M: Bill Metzenthen <billm@melbpc.org.au>
W: http://floatingpoint.sourceforge.net/emulator/index.html
F: include/linux/hrtimer.h
HIGH-SPEED SCC DRIVER FOR AX.25
-M: Klaus Kudielka <klaus.kudielka@ieee.org>
L: linux-hams@vger.kernel.org
-W: http://www.nt.tuwien.ac.at/~kkudielk/Linux/
-S: Maintained
+S: Orphan
F: drivers/net/hamradio/dmascc.c
F: drivers/net/hamradio/scc.c
S: Supported
F: drivers/scsi/ips.*
+ICH LPC AND GPIO DRIVER
+M: Peter Tyser <ptyser@xes-inc.com>
+S: Maintained
+F: drivers/mfd/lpc_ich.c
+F: drivers/gpio/gpio-ich.c
+
IDE SUBSYSTEM
M: "David S. Miller" <davem@davemloft.net>
L: linux-ide@vger.kernel.org
S: Maintained
F: drivers/mmc/host/imxmmc.*
-MOUSE AND MISC DEVICES [GENERAL]
-M: Alessandro Rubini <rubini@ipvvis.unipv.it>
-S: Maintained
-F: drivers/input/mouse/
-F: include/linux/gpio_mouse.h
-
MOXA SMARTIO/INDUSTIO/INTELLIO SERIAL CARD
M: Jiri Slaby <jirislaby@gmail.com>
S: Maintained
T: git git://git.infradead.org/battery-2.6.git
S: Maintained
F: include/linux/power_supply.h
-F: drivers/power/power_supply*
+F: drivers/power/
PNP SUPPORT
M: Adam Belay <abelay@mit.edu>
F: kernel/taskstats.c
TC CLASSIFIER
-M: Jamal Hadi Salim <hadi@cyberus.ca>
+M: Jamal Hadi Salim <jhs@mojatatu.com>
L: netdev@vger.kernel.org
S: Maintained
F: include/linux/pkt_cls.h
typedef unsigned int __kernel_ino_t;
#define __kernel_ino_t __kernel_ino_t
-typedef unsigned int __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
-
typedef unsigned long __kernel_sigset_t; /* at least 32 bits */
#include <asm-generic/posix_types.h>
if (__get_user(set.sig[0], &sc->sc_mask))
goto give_sigsegv;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(sc, regs, sw))
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto give_sigsegv;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(&frame->uc.uc_mcontext, regs, sw))
handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info,
struct pt_regs * regs, struct switch_stack *sw)
{
- sigset_t *oldset = ¤t->blocked;
+ sigset_t *oldset = sigmask_to_save();
int ret;
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
-
if (ka->sa.sa_flags & SA_SIGINFO)
ret = setup_rt_frame(sig, ka, info, oldset, regs, sw);
else
force_sigsegv(sig, current);
return;
}
- block_sigmask(ka, sig);
- /* A signal was successfully delivered, and the
- saved sigmask was stored on the signal frame,
- and will be restored by sigreturn. So we can
- simply clear the restore sigmask flag. */
- clear_thread_flag(TIF_RESTORE_SIGMASK);
+ signal_delivered(sig, info, ka, regs, 0);
}
static inline void
}
/* If there's no signal to deliver, we just restore the saved mask. */
- if (test_and_clear_thread_flag(TIF_RESTORE_SIGMASK))
- set_current_blocked(¤t->saved_sigmask);
-
+ restore_saved_sigmask();
if (single_stepping)
ptrace_set_bpt(current); /* re-set breakpoint */
}
if (thread_info_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
select ARCH_HAS_DMA_SET_COHERENT_MASK
select CLKSRC_MMIO
select CPU_XSCALE
- select GENERIC_GPIO
+ select ARCH_REQUIRE_GPIOLIB
select GENERIC_CLOCKEVENTS
select MIGHT_HAVE_PCI
select NEED_MACH_IO_H
reg = <0x10481000 0x1000>, <0x10482000 0x2000>;
};
+ combiner:interrupt-controller@10440000 {
+ compatible = "samsung,exynos4210-combiner";
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ samsung,combiner-nr = <32>;
+ reg = <0x10440000 0x1000>;
+ interrupts = <0 0 0>, <0 1 0>, <0 2 0>, <0 3 0>,
+ <0 4 0>, <0 5 0>, <0 6 0>, <0 7 0>,
+ <0 8 0>, <0 9 0>, <0 10 0>, <0 11 0>,
+ <0 12 0>, <0 13 0>, <0 14 0>, <0 15 0>,
+ <0 16 0>, <0 17 0>, <0 18 0>, <0 19 0>,
+ <0 20 0>, <0 21 0>, <0 22 0>, <0 23 0>,
+ <0 24 0>, <0 25 0>, <0 26 0>, <0 27 0>,
+ <0 28 0>, <0 29 0>, <0 30 0>, <0 31 0>;
+ };
+
watchdog {
compatible = "samsung,s3c2410-wdt";
reg = <0x101D0000 0x100>;
gpio: gpio@40028000 {
compatible = "nxp,lpc3220-gpio";
reg = <0x40028000 0x1000>;
- /* create a private address space for enumeration */
- #address-cells = <1>;
- #size-cells = <0>;
-
- gpio_p0: gpio-bank@0 {
- gpio-controller;
- #gpio-cells = <2>;
- reg = <0>;
- };
-
- gpio_p1: gpio-bank@1 {
- gpio-controller;
- #gpio-cells = <2>;
- reg = <1>;
- };
-
- gpio_p2: gpio-bank@2 {
- gpio-controller;
- #gpio-cells = <2>;
- reg = <2>;
- };
-
- gpio_p3: gpio-bank@3 {
- gpio-controller;
- #gpio-cells = <2>;
- reg = <3>;
- };
-
- gpi_p3: gpio-bank@4 {
- gpio-controller;
- #gpio-cells = <2>;
- reg = <4>;
- };
-
- gpo_p3: gpio-bank@5 {
- gpio-controller;
- #gpio-cells = <2>;
- reg = <5>;
- };
+ gpio-controller;
+ #gpio-cells = <3>; /* bank, pin, flags */
};
watchdog@4003C000 {
compatible = "gpio-leds";
led0 {
- gpios = <&gpo_p3 1 1>; /* GPO_P3 1, GPIO 80, active low */
+ gpios = <&gpio 5 1 1>; /* GPO_P3 1, GPIO 80, active low */
linux,default-trigger = "heartbeat";
default-state = "off";
};
led1 {
- gpios = <&gpo_p3 14 1>; /* GPO_P3 14, GPIO 93, active low */
+ gpios = <&gpio 5 14 1>; /* GPO_P3 14, GPIO 93, active low */
linux,default-trigger = "timer";
default-state = "off";
};
#address-cells = <0>;
interrupt-controller;
reg = <0x2c001000 0x1000>,
- <0x2c002000 0x100>;
+ <0x2c002000 0x1000>,
+ <0x2c004000 0x2000>,
+ <0x2c006000 0x2000>;
+ interrupts = <1 9 0xf04>;
};
memory-controller@7ffd0000 {
<0 91 4>;
};
+ timer {
+ compatible = "arm,armv7-timer";
+ interrupts = <1 13 0xf08>,
+ <1 14 0xf08>,
+ <1 11 0xf08>,
+ <1 10 0xf08>;
+ };
+
pmu {
compatible = "arm,cortex-a15-pmu", "arm,cortex-a9-pmu";
interrupts = <0 68 4>,
timer@2c000600 {
compatible = "arm,cortex-a5-twd-timer";
- reg = <0x2c000600 0x38>;
- interrupts = <1 2 0x304>,
- <1 3 0x304>;
+ reg = <0x2c000600 0x20>;
+ interrupts = <1 13 0x304>;
+ };
+
+ watchdog@2c000620 {
+ compatible = "arm,cortex-a5-twd-wdt";
+ reg = <0x2c000620 0x20>;
+ interrupts = <1 14 0x304>;
};
gic: interrupt-controller@2c001000 {
- compatible = "arm,corex-a5-gic", "arm,cortex-a9-gic";
+ compatible = "arm,cortex-a5-gic", "arm,cortex-a9-gic";
#interrupt-cells = <3>;
#address-cells = <0>;
interrupt-controller;
timer@1e000600 {
compatible = "arm,cortex-a9-twd-timer";
reg = <0x1e000600 0x20>;
- interrupts = <1 2 0xf04>,
- <1 3 0xf04>;
+ interrupts = <1 13 0xf04>;
+ };
+
+ watchdog@1e000620 {
+ compatible = "arm,cortex-a9-twd-wdt";
+ reg = <0x1e000620 0x20>;
+ interrupts = <1 14 0xf04>;
};
gic: interrupt-controller@1e001000 {
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_PCF8563=y
CONFIG_RTC_DRV_IMXDI=y
-CONFIG_RTC_MXC=y
+CONFIG_RTC_DRV_MXC=y
CONFIG_DMADEVICES=y
CONFIG_IMX_SDMA=y
CONFIG_IMX_DMA=y
CONFIG_LEDS_CLASS=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_INTF_DEV_UIE_EMUL=y
-CONFIG_RTC_MXC=y
+CONFIG_RTC_DRV_MXC=y
CONFIG_DMADEVICES=y
CONFIG_IMX_SDMA=y
CONFIG_EXT2_FS=y
extern void __raw_readsw(const void __iomem *addr, void *data, int wordlen);
extern void __raw_readsl(const void __iomem *addr, void *data, int longlen);
-#define __raw_writeb(v,a) (__chk_io_ptr(a), *(volatile unsigned char __force *)(a) = (v))
-#define __raw_writew(v,a) (__chk_io_ptr(a), *(volatile unsigned short __force *)(a) = (v))
-#define __raw_writel(v,a) (__chk_io_ptr(a), *(volatile unsigned int __force *)(a) = (v))
+#define __raw_writeb(v,a) ((void)(__chk_io_ptr(a), *(volatile unsigned char __force *)(a) = (v)))
+#define __raw_writew(v,a) ((void)(__chk_io_ptr(a), *(volatile unsigned short __force *)(a) = (v)))
+#define __raw_writel(v,a) ((void)(__chk_io_ptr(a), *(volatile unsigned int __force *)(a) = (v)))
#define __raw_readb(a) (__chk_io_ptr(a), *(volatile unsigned char __force *)(a))
#define __raw_readw(a) (__chk_io_ptr(a), *(volatile unsigned short __force *)(a))
#define readl_relaxed(c) ({ u32 __r = le32_to_cpu((__force __le32) \
__raw_readl(c)); __r; })
-#define writeb_relaxed(v,c) ((void)__raw_writeb(v,c))
-#define writew_relaxed(v,c) ((void)__raw_writew((__force u16) \
- cpu_to_le16(v),c))
-#define writel_relaxed(v,c) ((void)__raw_writel((__force u32) \
- cpu_to_le32(v),c))
+#define writeb_relaxed(v,c) __raw_writeb(v,c)
+#define writew_relaxed(v,c) __raw_writew((__force u16) cpu_to_le16(v),c)
+#define writel_relaxed(v,c) __raw_writel((__force u32) cpu_to_le32(v),c)
#define readb(c) ({ u8 __v = readb_relaxed(c); __iormb(); __v; })
#define readw(c) ({ u16 __v = readw_relaxed(c); __iormb(); __v; })
#define ioread16be(p) ({ unsigned int __v = be16_to_cpu((__force __be16)__raw_readw(p)); __iormb(); __v; })
#define ioread32be(p) ({ unsigned int __v = be32_to_cpu((__force __be32)__raw_readl(p)); __iormb(); __v; })
-#define iowrite8(v,p) ({ __iowmb(); (void)__raw_writeb(v, p); })
-#define iowrite16(v,p) ({ __iowmb(); (void)__raw_writew((__force __u16)cpu_to_le16(v), p); })
-#define iowrite32(v,p) ({ __iowmb(); (void)__raw_writel((__force __u32)cpu_to_le32(v), p); })
+#define iowrite8(v,p) ({ __iowmb(); __raw_writeb(v, p); })
+#define iowrite16(v,p) ({ __iowmb(); __raw_writew((__force __u16)cpu_to_le16(v), p); })
+#define iowrite32(v,p) ({ __iowmb(); __raw_writel((__force __u32)cpu_to_le32(v), p); })
-#define iowrite16be(v,p) ({ __iowmb(); (void)__raw_writew((__force __u16)cpu_to_be16(v), p); })
-#define iowrite32be(v,p) ({ __iowmb(); (void)__raw_writel((__force __u32)cpu_to_be32(v), p); })
+#define iowrite16be(v,p) ({ __iowmb(); __raw_writew((__force __u16)cpu_to_be16(v), p); })
+#define iowrite32be(v,p) ({ __iowmb(); __raw_writel((__force __u32)cpu_to_be32(v), p); })
#define ioread8_rep(p,d,c) __raw_readsb(p,d,c)
#define ioread16_rep(p,d,c) __raw_readsw(p,d,c)
typedef unsigned short __kernel_mode_t;
#define __kernel_mode_t __kernel_mode_t
-typedef unsigned short __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
-
typedef unsigned short __kernel_ipc_pid_t;
#define __kernel_ipc_pid_t __kernel_ipc_pid_t
#define TIF_NOTIFY_RESUME 2 /* callback before returning to user */
#define TIF_SYSCALL_TRACE 8
#define TIF_SYSCALL_AUDIT 9
+#define TIF_SYSCALL_RESTARTSYS 10
#define TIF_POLLING_NRFLAG 16
#define TIF_USING_IWMMXT 17
#define TIF_MEMDIE 18 /* is terminating due to OOM killer */
#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
#define _TIF_USING_IWMMXT (1 << TIF_USING_IWMMXT)
-#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
#define _TIF_SECCOMP (1 << TIF_SECCOMP)
+#define _TIF_SYSCALL_RESTARTSYS (1 << TIF_SYSCALL_RESTARTSYS)
/* Checks for any syscall work in entry-common.S */
-#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT)
+#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
+ _TIF_SYSCALL_RESTARTSYS)
/*
* Change these and you break ASM code in entry-common.S
*/
-#define _TIF_WORK_MASK 0x000000ff
+#define _TIF_WORK_MASK (_TIF_NEED_RESCHED | _TIF_SIGPENDING | _TIF_NOTIFY_RESUME)
#endif /* __KERNEL__ */
#endif /* __ASM_ARM_THREAD_INFO_H */
work_pending:
tst r1, #_TIF_NEED_RESCHED
bne work_resched
- tst r1, #_TIF_SIGPENDING|_TIF_NOTIFY_RESUME
- beq no_work_pending
+ /*
+ * TIF_SIGPENDING or TIF_NOTIFY_RESUME must've been set if we got here
+ */
+ ldr r2, [sp, #S_PSR]
mov r0, sp @ 'regs'
+ tst r2, #15 @ are we returning to user mode?
+ bne no_work_pending @ no? just leave, then...
mov r2, why @ 'syscall'
tst r1, #_TIF_SIGPENDING @ delivering a signal?
movne why, #0 @ prevent further restarts
#include <linux/regset.h>
#include <linux/audit.h>
#include <linux/tracehook.h>
+#include <linux/unistd.h>
#include <asm/pgtable.h>
#include <asm/traps.h>
audit_syscall_entry(AUDIT_ARCH_ARM, scno, regs->ARM_r0,
regs->ARM_r1, regs->ARM_r2, regs->ARM_r3);
+ if (why == 0 && test_and_clear_thread_flag(TIF_SYSCALL_RESTARTSYS))
+ scno = __NR_restart_syscall - __NR_SYSCALL_BASE;
if (!test_thread_flag(TIF_SYSCALL_TRACE))
return scno;
#include "signal.h"
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
/*
* For ARM syscalls, we encode the syscall number into the instruction.
*/
#define SWI_SYS_SIGRETURN (0xef000000|(__NR_sigreturn)|(__NR_OABI_SYSCALL_BASE))
#define SWI_SYS_RT_SIGRETURN (0xef000000|(__NR_rt_sigreturn)|(__NR_OABI_SYSCALL_BASE))
-#define SWI_SYS_RESTART (0xef000000|__NR_restart_syscall|__NR_OABI_SYSCALL_BASE)
/*
* With EABI, the syscall number has to be loaded into r7.
MOV_R7_NR_RT_SIGRETURN, SWI_SYS_RT_SIGRETURN, SWI_THUMB_RT_SIGRETURN,
};
-/*
- * Either we support OABI only, or we have EABI with the OABI
- * compat layer enabled. In the later case we don't know if
- * user space is EABI or not, and if not we must not clobber r7.
- * Always using the OABI syscall solves that issue and works for
- * all those cases.
- */
-const unsigned long syscall_restart_code[2] = {
- SWI_SYS_RESTART, /* swi __NR_restart_syscall */
- 0xe49df004, /* ldr pc, [sp], #4 */
-};
-
/*
* atomically swap in the new signal mask, and wait for a signal.
*/
old_sigset_t mask;
if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
__get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
- __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
+ __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) ||
+ __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
+ __get_user(mask, &act->sa_mask))
return -EFAULT;
- __get_user(new_ka.sa.sa_flags, &act->sa_flags);
- __get_user(mask, &act->sa_mask);
siginitset(&new_ka.sa.sa_mask, mask);
}
if (!ret && oact) {
if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
__put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
- __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
+ __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) ||
+ __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
+ __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
return -EFAULT;
- __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
- __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
}
return ret;
int err;
err = __copy_from_user(&set, &sf->uc.uc_sigmask, sizeof(set));
- if (err == 0) {
- sigdelsetmask(&set, ~_BLOCKABLE);
+ if (err == 0)
set_current_blocked(&set);
- }
__get_user_error(regs->ARM_r0, &sf->uc.uc_mcontext.arm_r0, err);
__get_user_error(regs->ARM_r1, &sf->uc.uc_mcontext.arm_r1, err);
/*
* OK, we're invoking a handler
*/
-static int
+static void
handle_signal(unsigned long sig, struct k_sigaction *ka,
- siginfo_t *info, sigset_t *oldset,
- struct pt_regs * regs)
+ siginfo_t *info, struct pt_regs *regs)
{
struct thread_info *thread = current_thread_info();
struct task_struct *tsk = current;
+ sigset_t *oldset = sigmask_to_save();
int usig = sig;
int ret;
if (ret != 0) {
force_sigsegv(sig, tsk);
- return ret;
+ return;
}
-
- /*
- * Block the signal if we were successful.
- */
- block_sigmask(ka, sig);
-
- tracehook_signal_handler(sig, info, ka, regs, 0);
-
- return 0;
+ signal_delivered(sig, info, ka, regs, 0);
}
/*
siginfo_t info;
int signr;
- /*
- * We want the common case to go fast, which
- * is why we may in certain cases get here from
- * kernel mode. Just return without doing anything
- * if so.
- */
- if (!user_mode(regs))
- return;
-
/*
* If we were from a system call, check for system call restarting...
*/
case -ERESTARTNOHAND:
case -ERESTARTSYS:
case -ERESTARTNOINTR:
+ case -ERESTART_RESTARTBLOCK:
regs->ARM_r0 = regs->ARM_ORIG_r0;
regs->ARM_pc = restart_addr;
break;
- case -ERESTART_RESTARTBLOCK:
- regs->ARM_r0 = -EINTR;
- break;
}
}
- if (try_to_freeze())
- goto no_signal;
-
/*
* Get the signal to deliver. When running under ptrace, at this
* point the debugger may change all our registers ...
*/
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
- sigset_t *oldset;
-
/*
* Depending on the signal settings we may need to revert the
* decision to restart the system call. But skip this if a
* debugger has chosen to restart at a different PC.
*/
if (regs->ARM_pc == restart_addr) {
- if (retval == -ERESTARTNOHAND
+ if (retval == -ERESTARTNOHAND ||
+ retval == -ERESTART_RESTARTBLOCK
|| (retval == -ERESTARTSYS
&& !(ka.sa.sa_flags & SA_RESTART))) {
regs->ARM_r0 = -EINTR;
regs->ARM_pc = continue_addr;
}
+ clear_thread_flag(TIF_SYSCALL_RESTARTSYS);
}
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
- if (handle_signal(signr, &ka, &info, oldset, regs) == 0) {
- /*
- * A signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag.
- */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- }
+ handle_signal(signr, &ka, &info, regs);
return;
}
- no_signal:
if (syscall) {
/*
* Handle restarting a different system call. As above,
* ignore the restart.
*/
if (retval == -ERESTART_RESTARTBLOCK
- && regs->ARM_pc == continue_addr) {
- if (thumb_mode(regs)) {
- regs->ARM_r7 = __NR_restart_syscall - __NR_SYSCALL_BASE;
- regs->ARM_pc -= 2;
- } else {
-#if defined(CONFIG_AEABI) && !defined(CONFIG_OABI_COMPAT)
- regs->ARM_r7 = __NR_restart_syscall;
- regs->ARM_pc -= 4;
-#else
- u32 __user *usp;
-
- regs->ARM_sp -= 4;
- usp = (u32 __user *)regs->ARM_sp;
-
- if (put_user(regs->ARM_pc, usp) == 0) {
- regs->ARM_pc = KERN_RESTART_CODE;
- } else {
- regs->ARM_sp += 4;
- force_sigsegv(0, current);
- }
-#endif
- }
- }
-
- /* If there's no signal to deliver, we just put the saved sigmask
- * back.
- */
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
+ && regs->ARM_pc == restart_addr)
+ set_thread_flag(TIF_SYSCALL_RESTARTSYS);
}
+
+ restore_saved_sigmask();
}
asmlinkage void
if (thread_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
* published by the Free Software Foundation.
*/
#define KERN_SIGRETURN_CODE (CONFIG_VECTORS_BASE + 0x00000500)
-#define KERN_RESTART_CODE (KERN_SIGRETURN_CODE + sizeof(sigreturn_codes))
extern const unsigned long sigreturn_codes[7];
-extern const unsigned long syscall_restart_code[2];
int __cpu_disable(void)
{
unsigned int cpu = smp_processor_id();
- struct task_struct *p;
int ret;
ret = platform_cpu_disable(cpu);
flush_cache_all();
local_flush_tlb_all();
- read_lock(&tasklist_lock);
- for_each_process(p) {
- if (p->mm)
- cpumask_clear_cpu(cpu, mm_cpumask(p->mm));
- }
- read_unlock(&tasklist_lock);
+ clear_tasks_mm_cpumask(cpu);
return 0;
}
*/
memcpy((void *)(vectors + KERN_SIGRETURN_CODE - CONFIG_VECTORS_BASE),
sigreturn_codes, sizeof(sigreturn_codes));
- memcpy((void *)(vectors + KERN_RESTART_CODE - CONFIG_VECTORS_BASE),
- syscall_restart_code, sizeof(syscall_restart_code));
flush_icache_range(vectors, vectors + PAGE_SIZE);
modify_domain(DOMAIN_USER, DOMAIN_CLIENT);
default y
depends on ARCH_EXYNOS5
select SAMSUNG_DMADEV
+ select S5P_PM if PM
+ select S5P_SLEEP if PM
help
Enable EXYNOS5250 SoC support
obj-$(CONFIG_PM_GENERIC_DOMAINS) += pm_domains.o
obj-$(CONFIG_CPU_IDLE) += cpuidle.o
-obj-$(CONFIG_ARCH_EXYNOS4) += pmu.o
+obj-$(CONFIG_ARCH_EXYNOS) += pmu.o
obj-$(CONFIG_SMP) += platsmp.o headsmp.o
#ifdef CONFIG_PM_SLEEP
static struct sleep_save exynos5_clock_save[] = {
- /* will be implemented */
+ SAVE_ITEM(EXYNOS5_CLKSRC_MASK_TOP),
+ SAVE_ITEM(EXYNOS5_CLKSRC_MASK_GSCL),
+ SAVE_ITEM(EXYNOS5_CLKSRC_MASK_DISP1_0),
+ SAVE_ITEM(EXYNOS5_CLKSRC_MASK_FSYS),
+ SAVE_ITEM(EXYNOS5_CLKSRC_MASK_MAUDIO),
+ SAVE_ITEM(EXYNOS5_CLKSRC_MASK_PERIC0),
+ SAVE_ITEM(EXYNOS5_CLKSRC_MASK_PERIC1),
+ SAVE_ITEM(EXYNOS5_CLKGATE_IP_GSCL),
+ SAVE_ITEM(EXYNOS5_CLKGATE_IP_DISP1),
+ SAVE_ITEM(EXYNOS5_CLKGATE_IP_MFC),
+ SAVE_ITEM(EXYNOS5_CLKGATE_IP_G3D),
+ SAVE_ITEM(EXYNOS5_CLKGATE_IP_GEN),
+ SAVE_ITEM(EXYNOS5_CLKGATE_IP_FSYS),
+ SAVE_ITEM(EXYNOS5_CLKGATE_IP_PERIC),
+ SAVE_ITEM(EXYNOS5_CLKGATE_IP_PERIS),
+ SAVE_ITEM(EXYNOS5_CLKGATE_BLOCK),
+ SAVE_ITEM(EXYNOS5_CLKDIV_TOP0),
+ SAVE_ITEM(EXYNOS5_CLKDIV_TOP1),
+ SAVE_ITEM(EXYNOS5_CLKDIV_GSCL),
+ SAVE_ITEM(EXYNOS5_CLKDIV_DISP1_0),
+ SAVE_ITEM(EXYNOS5_CLKDIV_GEN),
+ SAVE_ITEM(EXYNOS5_CLKDIV_MAUDIO),
+ SAVE_ITEM(EXYNOS5_CLKDIV_FSYS0),
+ SAVE_ITEM(EXYNOS5_CLKDIV_FSYS1),
+ SAVE_ITEM(EXYNOS5_CLKDIV_FSYS2),
+ SAVE_ITEM(EXYNOS5_CLKDIV_FSYS3),
+ SAVE_ITEM(EXYNOS5_CLKDIV_PERIC0),
+ SAVE_ITEM(EXYNOS5_CLKDIV_PERIC1),
+ SAVE_ITEM(EXYNOS5_CLKDIV_PERIC2),
+ SAVE_ITEM(EXYNOS5_CLKDIV_PERIC3),
+ SAVE_ITEM(EXYNOS5_CLKDIV_PERIC4),
+ SAVE_ITEM(EXYNOS5_CLKDIV_PERIC5),
+ SAVE_ITEM(EXYNOS5_SCLK_DIV_ISP),
+ SAVE_ITEM(EXYNOS5_CLKSRC_TOP0),
+ SAVE_ITEM(EXYNOS5_CLKSRC_TOP1),
+ SAVE_ITEM(EXYNOS5_CLKSRC_TOP2),
+ SAVE_ITEM(EXYNOS5_CLKSRC_TOP3),
+ SAVE_ITEM(EXYNOS5_CLKSRC_GSCL),
+ SAVE_ITEM(EXYNOS5_CLKSRC_DISP1_0),
+ SAVE_ITEM(EXYNOS5_CLKSRC_MAUDIO),
+ SAVE_ITEM(EXYNOS5_CLKSRC_FSYS),
+ SAVE_ITEM(EXYNOS5_CLKSRC_PERIC0),
+ SAVE_ITEM(EXYNOS5_CLKSRC_PERIC1),
+ SAVE_ITEM(EXYNOS5_SCLK_SRC_ISP),
+ SAVE_ITEM(EXYNOS5_EPLL_CON0),
+ SAVE_ITEM(EXYNOS5_EPLL_CON1),
+ SAVE_ITEM(EXYNOS5_EPLL_CON2),
+ SAVE_ITEM(EXYNOS5_VPLL_CON0),
+ SAVE_ITEM(EXYNOS5_VPLL_CON1),
+ SAVE_ITEM(EXYNOS5_VPLL_CON2),
};
#endif
exynos4_set_wakeupmask();
/* Set value of power down register for aftr mode */
- exynos4_sys_powerdown_conf(SYS_AFTR);
+ exynos_sys_powerdown_conf(SYS_AFTR);
__raw_writel(virt_to_phys(s3c_cpu_resume), REG_DIRECTGO_ADDR);
__raw_writel(S5P_CHECK_AFTR, REG_DIRECTGO_FLAG);
__raw_writel(tmp, S5P_WAKEUP_MASK);
__raw_writel(s3c_irqwake_intmask, S5P_WAKEUP_MASK);
- __raw_writel(s3c_irqwake_eintmask, S5P_EINT_WAKEUP_MASK);
+ __raw_writel(s3c_irqwake_eintmask & 0xFFFFFFFE, S5P_EINT_WAKEUP_MASK);
}
static inline void s3c_pm_arch_stop_clocks(void)
};
extern unsigned long l2x0_regs_phys;
-struct exynos4_pmu_conf {
+struct exynos_pmu_conf {
void __iomem *reg;
unsigned int val[NUM_SYS_POWERDOWN];
};
-extern void exynos4_sys_powerdown_conf(enum sys_powerdown mode);
+extern void exynos_sys_powerdown_conf(enum sys_powerdown mode);
extern void s3c_cpu_resume(void);
#endif /* __ASM_ARCH_PMU_H */
#define EXYNOS5_CLKDIV_ACP EXYNOS_CLKREG(0x08500)
-#define EXYNOS5_CLKSRC_TOP2 EXYNOS_CLKREG(0x10218)
#define EXYNOS5_EPLL_CON0 EXYNOS_CLKREG(0x10130)
#define EXYNOS5_EPLL_CON1 EXYNOS_CLKREG(0x10134)
+#define EXYNOS5_EPLL_CON2 EXYNOS_CLKREG(0x10138)
#define EXYNOS5_VPLL_CON0 EXYNOS_CLKREG(0x10140)
#define EXYNOS5_VPLL_CON1 EXYNOS_CLKREG(0x10144)
+#define EXYNOS5_VPLL_CON2 EXYNOS_CLKREG(0x10148)
#define EXYNOS5_CPLL_CON0 EXYNOS_CLKREG(0x10120)
#define EXYNOS5_CLKSRC_TOP0 EXYNOS_CLKREG(0x10210)
+#define EXYNOS5_CLKSRC_TOP1 EXYNOS_CLKREG(0x10214)
+#define EXYNOS5_CLKSRC_TOP2 EXYNOS_CLKREG(0x10218)
#define EXYNOS5_CLKSRC_TOP3 EXYNOS_CLKREG(0x1021C)
#define EXYNOS5_CLKSRC_GSCL EXYNOS_CLKREG(0x10220)
#define EXYNOS5_CLKSRC_DISP1_0 EXYNOS_CLKREG(0x1022C)
+#define EXYNOS5_CLKSRC_MAUDIO EXYNOS_CLKREG(0x10240)
#define EXYNOS5_CLKSRC_FSYS EXYNOS_CLKREG(0x10244)
#define EXYNOS5_CLKSRC_PERIC0 EXYNOS_CLKREG(0x10250)
+#define EXYNOS5_CLKSRC_PERIC1 EXYNOS_CLKREG(0x10254)
+#define EXYNOS5_SCLK_SRC_ISP EXYNOS_CLKREG(0x10270)
#define EXYNOS5_CLKSRC_MASK_TOP EXYNOS_CLKREG(0x10310)
#define EXYNOS5_CLKSRC_MASK_GSCL EXYNOS_CLKREG(0x10320)
#define EXYNOS5_CLKSRC_MASK_DISP1_0 EXYNOS_CLKREG(0x1032C)
+#define EXYNOS5_CLKSRC_MASK_MAUDIO EXYNOS_CLKREG(0x10334)
#define EXYNOS5_CLKSRC_MASK_FSYS EXYNOS_CLKREG(0x10340)
#define EXYNOS5_CLKSRC_MASK_PERIC0 EXYNOS_CLKREG(0x10350)
+#define EXYNOS5_CLKSRC_MASK_PERIC1 EXYNOS_CLKREG(0x10354)
#define EXYNOS5_CLKDIV_TOP0 EXYNOS_CLKREG(0x10510)
#define EXYNOS5_CLKDIV_TOP1 EXYNOS_CLKREG(0x10514)
#define EXYNOS5_CLKDIV_GSCL EXYNOS_CLKREG(0x10520)
#define EXYNOS5_CLKDIV_DISP1_0 EXYNOS_CLKREG(0x1052C)
#define EXYNOS5_CLKDIV_GEN EXYNOS_CLKREG(0x1053C)
+#define EXYNOS5_CLKDIV_MAUDIO EXYNOS_CLKREG(0x10544)
#define EXYNOS5_CLKDIV_FSYS0 EXYNOS_CLKREG(0x10548)
#define EXYNOS5_CLKDIV_FSYS1 EXYNOS_CLKREG(0x1054C)
#define EXYNOS5_CLKDIV_FSYS2 EXYNOS_CLKREG(0x10550)
#define EXYNOS5_CLKDIV_FSYS3 EXYNOS_CLKREG(0x10554)
#define EXYNOS5_CLKDIV_PERIC0 EXYNOS_CLKREG(0x10558)
+#define EXYNOS5_CLKDIV_PERIC1 EXYNOS_CLKREG(0x1055C)
+#define EXYNOS5_CLKDIV_PERIC2 EXYNOS_CLKREG(0x10560)
+#define EXYNOS5_CLKDIV_PERIC3 EXYNOS_CLKREG(0x10564)
+#define EXYNOS5_CLKDIV_PERIC4 EXYNOS_CLKREG(0x10568)
+#define EXYNOS5_CLKDIV_PERIC5 EXYNOS_CLKREG(0x1056C)
+#define EXYNOS5_SCLK_DIV_ISP EXYNOS_CLKREG(0x10580)
#define EXYNOS5_CLKGATE_IP_ACP EXYNOS_CLKREG(0x08800)
#define EXYNOS5_CLKGATE_IP_ISP0 EXYNOS_CLKREG(0x0C800)
#define EXYNOS5_CLKGATE_IP_GSCL EXYNOS_CLKREG(0x10920)
#define EXYNOS5_CLKGATE_IP_DISP1 EXYNOS_CLKREG(0x10928)
#define EXYNOS5_CLKGATE_IP_MFC EXYNOS_CLKREG(0x1092C)
+#define EXYNOS5_CLKGATE_IP_G3D EXYNOS_CLKREG(0x10930)
#define EXYNOS5_CLKGATE_IP_GEN EXYNOS_CLKREG(0x10934)
#define EXYNOS5_CLKGATE_IP_FSYS EXYNOS_CLKREG(0x10944)
#define EXYNOS5_CLKGATE_IP_GPS EXYNOS_CLKREG(0x1094C)
-/* linux/arch/arm/mach-exynos4/include/mach/regs-pmu.h
- *
- * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
+/*
+ * Copyright (c) 2010-2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
- * EXYNOS4 - Power management unit definition
+ * EXYNOS - Power management unit definition
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
#define S5P_DIS_IRQ_CORE3 S5P_PMUREG(0x1034)
#define S5P_DIS_IRQ_CENTRAL3 S5P_PMUREG(0x1038)
+/* For EXYNOS5 */
+
+#define EXYNOS5_USB_CFG S5P_PMUREG(0x0230)
+
+#define EXYNOS5_ARM_CORE0_SYS_PWR_REG S5P_PMUREG(0x1000)
+#define EXYNOS5_DIS_IRQ_ARM_CORE0_LOCAL_SYS_PWR_REG S5P_PMUREG(0x1004)
+#define EXYNOS5_DIS_IRQ_ARM_CORE0_CENTRAL_SYS_PWR_REG S5P_PMUREG(0x1008)
+#define EXYNOS5_ARM_CORE1_SYS_PWR_REG S5P_PMUREG(0x1010)
+#define EXYNOS5_DIS_IRQ_ARM_CORE1_LOCAL_SYS_PWR_REG S5P_PMUREG(0x1014)
+#define EXYNOS5_DIS_IRQ_ARM_CORE1_CENTRAL_SYS_PWR_REG S5P_PMUREG(0x1018)
+#define EXYNOS5_FSYS_ARM_SYS_PWR_REG S5P_PMUREG(0x1040)
+#define EXYNOS5_DIS_IRQ_FSYS_ARM_CENTRAL_SYS_PWR_REG S5P_PMUREG(0x1048)
+#define EXYNOS5_ISP_ARM_SYS_PWR_REG S5P_PMUREG(0x1050)
+#define EXYNOS5_DIS_IRQ_ISP_ARM_LOCAL_SYS_PWR_REG S5P_PMUREG(0x1054)
+#define EXYNOS5_DIS_IRQ_ISP_ARM_CENTRAL_SYS_PWR_REG S5P_PMUREG(0x1058)
+#define EXYNOS5_ARM_COMMON_SYS_PWR_REG S5P_PMUREG(0x1080)
+#define EXYNOS5_ARM_L2_SYS_PWR_REG S5P_PMUREG(0x10C0)
+#define EXYNOS5_CMU_ACLKSTOP_SYS_PWR_REG S5P_PMUREG(0x1100)
+#define EXYNOS5_CMU_SCLKSTOP_SYS_PWR_REG S5P_PMUREG(0x1104)
+#define EXYNOS5_CMU_RESET_SYS_PWR_REG S5P_PMUREG(0x110C)
+#define EXYNOS5_CMU_ACLKSTOP_SYSMEM_SYS_PWR_REG S5P_PMUREG(0x1120)
+#define EXYNOS5_CMU_SCLKSTOP_SYSMEM_SYS_PWR_REG S5P_PMUREG(0x1124)
+#define EXYNOS5_CMU_RESET_SYSMEM_SYS_PWR_REG S5P_PMUREG(0x112C)
+#define EXYNOS5_DRAM_FREQ_DOWN_SYS_PWR_REG S5P_PMUREG(0x1130)
+#define EXYNOS5_DDRPHY_DLLOFF_SYS_PWR_REG S5P_PMUREG(0x1134)
+#define EXYNOS5_DDRPHY_DLLLOCK_SYS_PWR_REG S5P_PMUREG(0x1138)
+#define EXYNOS5_APLL_SYSCLK_SYS_PWR_REG S5P_PMUREG(0x1140)
+#define EXYNOS5_MPLL_SYSCLK_SYS_PWR_REG S5P_PMUREG(0x1144)
+#define EXYNOS5_VPLL_SYSCLK_SYS_PWR_REG S5P_PMUREG(0x1148)
+#define EXYNOS5_EPLL_SYSCLK_SYS_PWR_REG S5P_PMUREG(0x114C)
+#define EXYNOS5_BPLL_SYSCLK_SYS_PWR_REG S5P_PMUREG(0x1150)
+#define EXYNOS5_CPLL_SYSCLK_SYS_PWR_REG S5P_PMUREG(0x1154)
+#define EXYNOS5_MPLLUSER_SYSCLK_SYS_PWR_REG S5P_PMUREG(0x1164)
+#define EXYNOS5_BPLLUSER_SYSCLK_SYS_PWR_REG S5P_PMUREG(0x1170)
+#define EXYNOS5_TOP_BUS_SYS_PWR_REG S5P_PMUREG(0x1180)
+#define EXYNOS5_TOP_RETENTION_SYS_PWR_REG S5P_PMUREG(0x1184)
+#define EXYNOS5_TOP_PWR_SYS_PWR_REG S5P_PMUREG(0x1188)
+#define EXYNOS5_TOP_BUS_SYSMEM_SYS_PWR_REG S5P_PMUREG(0x1190)
+#define EXYNOS5_TOP_RETENTION_SYSMEM_SYS_PWR_REG S5P_PMUREG(0x1194)
+#define EXYNOS5_TOP_PWR_SYSMEM_SYS_PWR_REG S5P_PMUREG(0x1198)
+#define EXYNOS5_LOGIC_RESET_SYS_PWR_REG S5P_PMUREG(0x11A0)
+#define EXYNOS5_OSCCLK_GATE_SYS_PWR_REG S5P_PMUREG(0x11A4)
+#define EXYNOS5_LOGIC_RESET_SYSMEM_SYS_PWR_REG S5P_PMUREG(0x11B0)
+#define EXYNOS5_OSCCLK_GATE_SYSMEM_SYS_PWR_REG S5P_PMUREG(0x11B4)
+#define EXYNOS5_USBOTG_MEM_SYS_PWR_REG S5P_PMUREG(0x11C0)
+#define EXYNOS5_G2D_MEM_SYS_PWR_REG S5P_PMUREG(0x11C8)
+#define EXYNOS5_USBDRD_MEM_SYS_PWR_REG S5P_PMUREG(0x11CC)
+#define EXYNOS5_SDMMC_MEM_SYS_PWR_REG S5P_PMUREG(0x11D0)
+#define EXYNOS5_CSSYS_MEM_SYS_PWR_REG S5P_PMUREG(0x11D4)
+#define EXYNOS5_SECSS_MEM_SYS_PWR_REG S5P_PMUREG(0x11D8)
+#define EXYNOS5_ROTATOR_MEM_SYS_PWR_REG S5P_PMUREG(0x11DC)
+#define EXYNOS5_INTRAM_MEM_SYS_PWR_REG S5P_PMUREG(0x11E0)
+#define EXYNOS5_INTROM_MEM_SYS_PWR_REG S5P_PMUREG(0x11E4)
+#define EXYNOS5_JPEG_MEM_SYS_PWR_REG S5P_PMUREG(0x11E8)
+#define EXYNOS5_HSI_MEM_SYS_PWR_REG S5P_PMUREG(0x11EC)
+#define EXYNOS5_MCUIOP_MEM_SYS_PWR_REG S5P_PMUREG(0x11F4)
+#define EXYNOS5_SATA_MEM_SYS_PWR_REG S5P_PMUREG(0x11FC)
+#define EXYNOS5_PAD_RETENTION_DRAM_SYS_PWR_REG S5P_PMUREG(0x1200)
+#define EXYNOS5_PAD_RETENTION_MAU_SYS_PWR_REG S5P_PMUREG(0x1204)
+#define EXYNOS5_PAD_RETENTION_EFNAND_SYS_PWR_REG S5P_PMUREG(0x1208)
+#define EXYNOS5_PAD_RETENTION_GPIO_SYS_PWR_REG S5P_PMUREG(0x1220)
+#define EXYNOS5_PAD_RETENTION_UART_SYS_PWR_REG S5P_PMUREG(0x1224)
+#define EXYNOS5_PAD_RETENTION_MMCA_SYS_PWR_REG S5P_PMUREG(0x1228)
+#define EXYNOS5_PAD_RETENTION_MMCB_SYS_PWR_REG S5P_PMUREG(0x122C)
+#define EXYNOS5_PAD_RETENTION_EBIA_SYS_PWR_REG S5P_PMUREG(0x1230)
+#define EXYNOS5_PAD_RETENTION_EBIB_SYS_PWR_REG S5P_PMUREG(0x1234)
+#define EXYNOS5_PAD_RETENTION_SPI_SYS_PWR_REG S5P_PMUREG(0x1238)
+#define EXYNOS5_PAD_RETENTION_GPIO_SYSMEM_SYS_PWR_REG S5P_PMUREG(0x123C)
+#define EXYNOS5_PAD_ISOLATION_SYS_PWR_REG S5P_PMUREG(0x1240)
+#define EXYNOS5_PAD_ISOLATION_SYSMEM_SYS_PWR_REG S5P_PMUREG(0x1250)
+#define EXYNOS5_PAD_ALV_SEL_SYS_PWR_REG S5P_PMUREG(0x1260)
+#define EXYNOS5_XUSBXTI_SYS_PWR_REG S5P_PMUREG(0x1280)
+#define EXYNOS5_XXTI_SYS_PWR_REG S5P_PMUREG(0x1284)
+#define EXYNOS5_EXT_REGULATOR_SYS_PWR_REG S5P_PMUREG(0x12C0)
+#define EXYNOS5_GPIO_MODE_SYS_PWR_REG S5P_PMUREG(0x1300)
+#define EXYNOS5_GPIO_MODE_SYSMEM_SYS_PWR_REG S5P_PMUREG(0x1320)
+#define EXYNOS5_GPIO_MODE_MAU_SYS_PWR_REG S5P_PMUREG(0x1340)
+#define EXYNOS5_TOP_ASB_RESET_SYS_PWR_REG S5P_PMUREG(0x1344)
+#define EXYNOS5_TOP_ASB_ISOLATION_SYS_PWR_REG S5P_PMUREG(0x1348)
+#define EXYNOS5_GSCL_SYS_PWR_REG S5P_PMUREG(0x1400)
+#define EXYNOS5_ISP_SYS_PWR_REG S5P_PMUREG(0x1404)
+#define EXYNOS5_MFC_SYS_PWR_REG S5P_PMUREG(0x1408)
+#define EXYNOS5_G3D_SYS_PWR_REG S5P_PMUREG(0x140C)
+#define EXYNOS5_DISP1_SYS_PWR_REG S5P_PMUREG(0x1414)
+#define EXYNOS5_MAU_SYS_PWR_REG S5P_PMUREG(0x1418)
+#define EXYNOS5_CMU_CLKSTOP_GSCL_SYS_PWR_REG S5P_PMUREG(0x1480)
+#define EXYNOS5_CMU_CLKSTOP_ISP_SYS_PWR_REG S5P_PMUREG(0x1484)
+#define EXYNOS5_CMU_CLKSTOP_MFC_SYS_PWR_REG S5P_PMUREG(0x1488)
+#define EXYNOS5_CMU_CLKSTOP_G3D_SYS_PWR_REG S5P_PMUREG(0x148C)
+#define EXYNOS5_CMU_CLKSTOP_DISP1_SYS_PWR_REG S5P_PMUREG(0x1494)
+#define EXYNOS5_CMU_CLKSTOP_MAU_SYS_PWR_REG S5P_PMUREG(0x1498)
+#define EXYNOS5_CMU_SYSCLK_GSCL_SYS_PWR_REG S5P_PMUREG(0x14C0)
+#define EXYNOS5_CMU_SYSCLK_ISP_SYS_PWR_REG S5P_PMUREG(0x14C4)
+#define EXYNOS5_CMU_SYSCLK_MFC_SYS_PWR_REG S5P_PMUREG(0x14C8)
+#define EXYNOS5_CMU_SYSCLK_G3D_SYS_PWR_REG S5P_PMUREG(0x14CC)
+#define EXYNOS5_CMU_SYSCLK_DISP1_SYS_PWR_REG S5P_PMUREG(0x14D4)
+#define EXYNOS5_CMU_SYSCLK_MAU_SYS_PWR_REG S5P_PMUREG(0x14D8)
+#define EXYNOS5_CMU_RESET_GSCL_SYS_PWR_REG S5P_PMUREG(0x1580)
+#define EXYNOS5_CMU_RESET_ISP_SYS_PWR_REG S5P_PMUREG(0x1584)
+#define EXYNOS5_CMU_RESET_MFC_SYS_PWR_REG S5P_PMUREG(0x1588)
+#define EXYNOS5_CMU_RESET_G3D_SYS_PWR_REG S5P_PMUREG(0x158C)
+#define EXYNOS5_CMU_RESET_DISP1_SYS_PWR_REG S5P_PMUREG(0x1594)
+#define EXYNOS5_CMU_RESET_MAU_SYS_PWR_REG S5P_PMUREG(0x1598)
+
+#define EXYNOS5_ARM_CORE0_OPTION S5P_PMUREG(0x2008)
+#define EXYNOS5_ARM_CORE1_OPTION S5P_PMUREG(0x2088)
+#define EXYNOS5_FSYS_ARM_OPTION S5P_PMUREG(0x2208)
+#define EXYNOS5_ISP_ARM_OPTION S5P_PMUREG(0x2288)
+#define EXYNOS5_ARM_COMMON_OPTION S5P_PMUREG(0x2408)
+#define EXYNOS5_TOP_PWR_OPTION S5P_PMUREG(0x2C48)
+#define EXYNOS5_TOP_PWR_SYSMEM_OPTION S5P_PMUREG(0x2CC8)
+#define EXYNOS5_JPEG_MEM_OPTION S5P_PMUREG(0x2F48)
+#define EXYNOS5_GSCL_STATUS S5P_PMUREG(0x4004)
+#define EXYNOS5_ISP_STATUS S5P_PMUREG(0x4024)
+#define EXYNOS5_GSCL_OPTION S5P_PMUREG(0x4008)
+#define EXYNOS5_ISP_OPTION S5P_PMUREG(0x4028)
+#define EXYNOS5_MFC_OPTION S5P_PMUREG(0x4048)
+#define EXYNOS5_G3D_CONFIGURATION S5P_PMUREG(0x4060)
+#define EXYNOS5_G3D_STATUS S5P_PMUREG(0x4064)
+#define EXYNOS5_G3D_OPTION S5P_PMUREG(0x4068)
+#define EXYNOS5_DISP1_OPTION S5P_PMUREG(0x40A8)
+#define EXYNOS5_MAU_OPTION S5P_PMUREG(0x40C8)
+
+#define EXYNOS5_USE_SC_FEEDBACK (1 << 1)
+#define EXYNOS5_USE_SC_COUNTER (1 << 0)
+
+#define EXYNOS5_MANUAL_L2RSTDISABLE_CONTROL (1 << 2)
+#define EXYNOS5_SKIP_DEACTIVATE_ACEACP_IN_PWDN (1 << 7)
+
+#define EXYNOS5_OPTION_USE_STANDBYWFE (1 << 24)
+#define EXYNOS5_OPTION_USE_STANDBYWFI (1 << 16)
+
+#define EXYNOS5_OPTION_USE_RETENTION (1 << 4)
+
#endif /* __ASM_ARCH_REGS_PMU_H */
-/* linux/arch/arm/mach-exynos4/pm.c
- *
- * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+/*
+ * Copyright (c) 2011-2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
- * EXYNOS4210 - Power Management support
+ * EXYNOS - Power Management support
*
* Based on arch/arm/mach-s3c2410/pm.c
* Copyright (c) 2006 Simtec Electronics
SAVE_ITEM(EXYNOS4_VPLL_CON1),
};
-static struct sleep_save exynos4_core_save[] = {
- /* GIC side */
- SAVE_ITEM(S5P_VA_GIC_CPU + 0x000),
- SAVE_ITEM(S5P_VA_GIC_CPU + 0x004),
- SAVE_ITEM(S5P_VA_GIC_CPU + 0x008),
- SAVE_ITEM(S5P_VA_GIC_CPU + 0x00C),
- SAVE_ITEM(S5P_VA_GIC_CPU + 0x014),
- SAVE_ITEM(S5P_VA_GIC_CPU + 0x018),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x000),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x004),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x100),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x104),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x108),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x300),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x304),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x308),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x400),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x404),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x408),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x40C),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x410),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x414),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x418),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x41C),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x420),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x424),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x428),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x42C),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x430),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x434),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x438),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x43C),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x440),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x444),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x448),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x44C),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x450),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x454),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x458),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x45C),
-
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x800),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x804),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x808),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x80C),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x810),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x814),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x818),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x81C),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x820),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x824),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x828),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x82C),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x830),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x834),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x838),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x83C),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x840),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x844),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x848),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x84C),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x850),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x854),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x858),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0x85C),
-
- SAVE_ITEM(S5P_VA_GIC_DIST + 0xC00),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0xC04),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0xC08),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0xC0C),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0xC10),
- SAVE_ITEM(S5P_VA_GIC_DIST + 0xC14),
-
- SAVE_ITEM(S5P_VA_COMBINER_BASE + 0x000),
- SAVE_ITEM(S5P_VA_COMBINER_BASE + 0x010),
- SAVE_ITEM(S5P_VA_COMBINER_BASE + 0x020),
- SAVE_ITEM(S5P_VA_COMBINER_BASE + 0x030),
- SAVE_ITEM(S5P_VA_COMBINER_BASE + 0x040),
- SAVE_ITEM(S5P_VA_COMBINER_BASE + 0x050),
- SAVE_ITEM(S5P_VA_COMBINER_BASE + 0x060),
- SAVE_ITEM(S5P_VA_COMBINER_BASE + 0x070),
- SAVE_ITEM(S5P_VA_COMBINER_BASE + 0x080),
- SAVE_ITEM(S5P_VA_COMBINER_BASE + 0x090),
-
+static struct sleep_save exynos_core_save[] = {
/* SROM side */
SAVE_ITEM(S5P_SROM_BW),
SAVE_ITEM(S5P_SROM_BC0),
/* For Cortex-A9 Diagnostic and Power control register */
static unsigned int save_arm_register[2];
-static int exynos4_cpu_suspend(unsigned long arg)
+static int exynos_cpu_suspend(unsigned long arg)
{
+#ifdef CONFIG_CACHE_L2X0
outer_flush_all();
+#endif
/* issue the standby signal into the pm unit. */
cpu_do_idle();
panic("sleep resumed to originator?");
}
-static void exynos4_pm_prepare(void)
+static void exynos_pm_prepare(void)
{
- u32 tmp;
+ unsigned int tmp;
- s3c_pm_do_save(exynos4_core_save, ARRAY_SIZE(exynos4_core_save));
- s3c_pm_do_save(exynos4_epll_save, ARRAY_SIZE(exynos4_epll_save));
- s3c_pm_do_save(exynos4_vpll_save, ARRAY_SIZE(exynos4_vpll_save));
+ s3c_pm_do_save(exynos_core_save, ARRAY_SIZE(exynos_core_save));
- tmp = __raw_readl(S5P_INFORM1);
+ if (!soc_is_exynos5250()) {
+ s3c_pm_do_save(exynos4_epll_save, ARRAY_SIZE(exynos4_epll_save));
+ s3c_pm_do_save(exynos4_vpll_save, ARRAY_SIZE(exynos4_vpll_save));
+ } else {
+ /* Disable USE_RETENTION of JPEG_MEM_OPTION */
+ tmp = __raw_readl(EXYNOS5_JPEG_MEM_OPTION);
+ tmp &= ~EXYNOS5_OPTION_USE_RETENTION;
+ __raw_writel(tmp, EXYNOS5_JPEG_MEM_OPTION);
+ }
/* Set value of power down register for sleep mode */
- exynos4_sys_powerdown_conf(SYS_SLEEP);
+ exynos_sys_powerdown_conf(SYS_SLEEP);
__raw_writel(S5P_CHECK_SLEEP, S5P_INFORM1);
/* ensure at least INFORM0 has the resume address */
/* Before enter central sequence mode, clock src register have to set */
- s3c_pm_do_restore_core(exynos4_set_clksrc, ARRAY_SIZE(exynos4_set_clksrc));
+ if (!soc_is_exynos5250())
+ s3c_pm_do_restore_core(exynos4_set_clksrc, ARRAY_SIZE(exynos4_set_clksrc));
if (soc_is_exynos4210())
s3c_pm_do_restore_core(exynos4210_set_clksrc, ARRAY_SIZE(exynos4210_set_clksrc));
}
-static int exynos4_pm_add(struct device *dev, struct subsys_interface *sif)
+static int exynos_pm_add(struct device *dev, struct subsys_interface *sif)
{
- pm_cpu_prep = exynos4_pm_prepare;
- pm_cpu_sleep = exynos4_cpu_suspend;
+ pm_cpu_prep = exynos_pm_prepare;
+ pm_cpu_sleep = exynos_cpu_suspend;
return 0;
}
} while (epll_wait || vpll_wait);
}
-static struct subsys_interface exynos4_pm_interface = {
- .name = "exynos4_pm",
+static struct subsys_interface exynos_pm_interface = {
+ .name = "exynos_pm",
.subsys = &exynos_subsys,
- .add_dev = exynos4_pm_add,
+ .add_dev = exynos_pm_add,
};
-static __init int exynos4_pm_drvinit(void)
+static __init int exynos_pm_drvinit(void)
{
struct clk *pll_base;
unsigned int tmp;
tmp |= ((0xFF << 8) | (0x1F << 1));
__raw_writel(tmp, S5P_WAKEUP_MASK);
- pll_base = clk_get(NULL, "xtal");
+ if (!soc_is_exynos5250()) {
+ pll_base = clk_get(NULL, "xtal");
- if (!IS_ERR(pll_base)) {
- pll_base_rate = clk_get_rate(pll_base);
- clk_put(pll_base);
+ if (!IS_ERR(pll_base)) {
+ pll_base_rate = clk_get_rate(pll_base);
+ clk_put(pll_base);
+ }
}
- return subsys_interface_register(&exynos4_pm_interface);
+ return subsys_interface_register(&exynos_pm_interface);
}
-arch_initcall(exynos4_pm_drvinit);
+arch_initcall(exynos_pm_drvinit);
-static int exynos4_pm_suspend(void)
+static int exynos_pm_suspend(void)
{
unsigned long tmp;
tmp &= ~S5P_CENTRAL_LOWPWR_CFG;
__raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION);
- if (soc_is_exynos4212() || soc_is_exynos4412()) {
- tmp = __raw_readl(S5P_CENTRAL_SEQ_OPTION);
- tmp &= ~(S5P_USE_STANDBYWFI_ISP_ARM |
- S5P_USE_STANDBYWFE_ISP_ARM);
- __raw_writel(tmp, S5P_CENTRAL_SEQ_OPTION);
- }
+ /* Setting SEQ_OPTION register */
+
+ tmp = (S5P_USE_STANDBY_WFI0 | S5P_USE_STANDBY_WFE0);
+ __raw_writel(tmp, S5P_CENTRAL_SEQ_OPTION);
- /* Save Power control register */
- asm ("mrc p15, 0, %0, c15, c0, 0"
- : "=r" (tmp) : : "cc");
- save_arm_register[0] = tmp;
+ if (!soc_is_exynos5250()) {
+ /* Save Power control register */
+ asm ("mrc p15, 0, %0, c15, c0, 0"
+ : "=r" (tmp) : : "cc");
+ save_arm_register[0] = tmp;
- /* Save Diagnostic register */
- asm ("mrc p15, 0, %0, c15, c0, 1"
- : "=r" (tmp) : : "cc");
- save_arm_register[1] = tmp;
+ /* Save Diagnostic register */
+ asm ("mrc p15, 0, %0, c15, c0, 1"
+ : "=r" (tmp) : : "cc");
+ save_arm_register[1] = tmp;
+ }
return 0;
}
-static void exynos4_pm_resume(void)
+static void exynos_pm_resume(void)
{
unsigned long tmp;
/* No need to perform below restore code */
goto early_wakeup;
}
- /* Restore Power control register */
- tmp = save_arm_register[0];
- asm volatile ("mcr p15, 0, %0, c15, c0, 0"
- : : "r" (tmp)
- : "cc");
-
- /* Restore Diagnostic register */
- tmp = save_arm_register[1];
- asm volatile ("mcr p15, 0, %0, c15, c0, 1"
- : : "r" (tmp)
- : "cc");
+ if (!soc_is_exynos5250()) {
+ /* Restore Power control register */
+ tmp = save_arm_register[0];
+ asm volatile ("mcr p15, 0, %0, c15, c0, 0"
+ : : "r" (tmp)
+ : "cc");
+
+ /* Restore Diagnostic register */
+ tmp = save_arm_register[1];
+ asm volatile ("mcr p15, 0, %0, c15, c0, 1"
+ : : "r" (tmp)
+ : "cc");
+ }
/* For release retention */
__raw_writel((1 << 28), S5P_PAD_RET_EBIA_OPTION);
__raw_writel((1 << 28), S5P_PAD_RET_EBIB_OPTION);
- s3c_pm_do_restore_core(exynos4_core_save, ARRAY_SIZE(exynos4_core_save));
+ s3c_pm_do_restore_core(exynos_core_save, ARRAY_SIZE(exynos_core_save));
- exynos4_restore_pll();
+ if (!soc_is_exynos5250()) {
+ exynos4_restore_pll();
#ifdef CONFIG_SMP
- scu_enable(S5P_VA_SCU);
+ scu_enable(S5P_VA_SCU);
#endif
+ }
early_wakeup:
return;
}
-static struct syscore_ops exynos4_pm_syscore_ops = {
- .suspend = exynos4_pm_suspend,
- .resume = exynos4_pm_resume,
+static struct syscore_ops exynos_pm_syscore_ops = {
+ .suspend = exynos_pm_suspend,
+ .resume = exynos_pm_resume,
};
-static __init int exynos4_pm_syscore_init(void)
+static __init int exynos_pm_syscore_init(void)
{
- register_syscore_ops(&exynos4_pm_syscore_ops);
+ register_syscore_ops(&exynos_pm_syscore_ops);
return 0;
}
-arch_initcall(exynos4_pm_syscore_init);
+arch_initcall(exynos_pm_syscore_init);
-/* linux/arch/arm/mach-exynos4/pmu.c
- *
- * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+/*
+ * Copyright (c) 2011-2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
- * EXYNOS4210 - CPU PMU(Power Management Unit) support
+ * EXYNOS - CPU PMU(Power Management Unit) support
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
#include <linux/io.h>
#include <linux/kernel.h>
+#include <linux/bug.h>
#include <mach/regs-clock.h>
#include <mach/pmu.h>
-static struct exynos4_pmu_conf *exynos4_pmu_config;
+static struct exynos_pmu_conf *exynos_pmu_config;
-static struct exynos4_pmu_conf exynos4210_pmu_config[] = {
+static struct exynos_pmu_conf exynos4210_pmu_config[] = {
/* { .reg = address, .val = { AFTR, LPA, SLEEP } */
{ S5P_ARM_CORE0_LOWPWR, { 0x0, 0x0, 0x2 } },
{ S5P_DIS_IRQ_CORE0, { 0x0, 0x0, 0x0 } },
{ PMU_TABLE_END,},
};
-static struct exynos4_pmu_conf exynos4x12_pmu_config[] = {
+static struct exynos_pmu_conf exynos4x12_pmu_config[] = {
{ S5P_ARM_CORE0_LOWPWR, { 0x0, 0x0, 0x2 } },
{ S5P_DIS_IRQ_CORE0, { 0x0, 0x0, 0x0 } },
{ S5P_DIS_IRQ_CENTRAL0, { 0x0, 0x0, 0x0 } },
{ PMU_TABLE_END,},
};
-static struct exynos4_pmu_conf exynos4412_pmu_config[] = {
+static struct exynos_pmu_conf exynos4412_pmu_config[] = {
{ S5P_ARM_CORE2_LOWPWR, { 0x0, 0x0, 0x2 } },
{ S5P_DIS_IRQ_CORE2, { 0x0, 0x0, 0x0 } },
{ S5P_DIS_IRQ_CENTRAL2, { 0x0, 0x0, 0x0 } },
{ PMU_TABLE_END,},
};
-void exynos4_sys_powerdown_conf(enum sys_powerdown mode)
+static struct exynos_pmu_conf exynos5250_pmu_config[] = {
+ /* { .reg = address, .val = { AFTR, LPA, SLEEP } */
+ { EXYNOS5_ARM_CORE0_SYS_PWR_REG, { 0x0, 0x0, 0x2} },
+ { EXYNOS5_DIS_IRQ_ARM_CORE0_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
+ { EXYNOS5_DIS_IRQ_ARM_CORE0_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
+ { EXYNOS5_ARM_CORE1_SYS_PWR_REG, { 0x0, 0x0, 0x2} },
+ { EXYNOS5_DIS_IRQ_ARM_CORE1_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
+ { EXYNOS5_DIS_IRQ_ARM_CORE1_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
+ { EXYNOS5_FSYS_ARM_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_DIS_IRQ_FSYS_ARM_CENTRAL_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
+ { EXYNOS5_ISP_ARM_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_DIS_IRQ_ISP_ARM_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
+ { EXYNOS5_DIS_IRQ_ISP_ARM_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
+ { EXYNOS5_ARM_COMMON_SYS_PWR_REG, { 0x0, 0x0, 0x2} },
+ { EXYNOS5_ARM_L2_SYS_PWR_REG, { 0x3, 0x3, 0x3} },
+ { EXYNOS5_CMU_ACLKSTOP_SYS_PWR_REG, { 0x1, 0x0, 0x1} },
+ { EXYNOS5_CMU_SCLKSTOP_SYS_PWR_REG, { 0x1, 0x0, 0x1} },
+ { EXYNOS5_CMU_RESET_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
+ { EXYNOS5_CMU_ACLKSTOP_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x1} },
+ { EXYNOS5_CMU_SCLKSTOP_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x1} },
+ { EXYNOS5_CMU_RESET_SYSMEM_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
+ { EXYNOS5_DRAM_FREQ_DOWN_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
+ { EXYNOS5_DDRPHY_DLLOFF_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
+ { EXYNOS5_DDRPHY_DLLLOCK_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
+ { EXYNOS5_APLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_MPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_VPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_EPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
+ { EXYNOS5_BPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_CPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_MPLLUSER_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_BPLLUSER_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_TOP_BUS_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
+ { EXYNOS5_TOP_RETENTION_SYS_PWR_REG, { 0x1, 0x0, 0x1} },
+ { EXYNOS5_TOP_PWR_SYS_PWR_REG, { 0x3, 0x0, 0x3} },
+ { EXYNOS5_TOP_BUS_SYSMEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
+ { EXYNOS5_TOP_RETENTION_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x1} },
+ { EXYNOS5_TOP_PWR_SYSMEM_SYS_PWR_REG, { 0x3, 0x0, 0x3} },
+ { EXYNOS5_LOGIC_RESET_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
+ { EXYNOS5_OSCCLK_GATE_SYS_PWR_REG, { 0x1, 0x0, 0x1} },
+ { EXYNOS5_LOGIC_RESET_SYSMEM_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
+ { EXYNOS5_OSCCLK_GATE_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x1} },
+ { EXYNOS5_USBOTG_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
+ { EXYNOS5_G2D_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
+ { EXYNOS5_USBDRD_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
+ { EXYNOS5_SDMMC_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
+ { EXYNOS5_CSSYS_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
+ { EXYNOS5_SECSS_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
+ { EXYNOS5_ROTATOR_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
+ { EXYNOS5_INTRAM_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
+ { EXYNOS5_INTROM_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
+ { EXYNOS5_JPEG_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
+ { EXYNOS5_HSI_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
+ { EXYNOS5_MCUIOP_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
+ { EXYNOS5_SATA_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
+ { EXYNOS5_PAD_RETENTION_DRAM_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_PAD_RETENTION_MAU_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
+ { EXYNOS5_PAD_RETENTION_GPIO_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_PAD_RETENTION_UART_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_PAD_RETENTION_MMCA_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_PAD_RETENTION_MMCB_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_PAD_RETENTION_EBIA_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_PAD_RETENTION_EBIB_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_PAD_RETENTION_SPI_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_PAD_RETENTION_GPIO_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_PAD_ISOLATION_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_PAD_ISOLATION_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_PAD_ALV_SEL_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_XUSBXTI_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
+ { EXYNOS5_XXTI_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
+ { EXYNOS5_EXT_REGULATOR_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
+ { EXYNOS5_GPIO_MODE_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_GPIO_MODE_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_GPIO_MODE_MAU_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
+ { EXYNOS5_TOP_ASB_RESET_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
+ { EXYNOS5_TOP_ASB_ISOLATION_SYS_PWR_REG, { 0x1, 0x0, 0x1} },
+ { EXYNOS5_GSCL_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
+ { EXYNOS5_ISP_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
+ { EXYNOS5_MFC_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
+ { EXYNOS5_G3D_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
+ { EXYNOS5_DISP1_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
+ { EXYNOS5_MAU_SYS_PWR_REG, { 0x7, 0x7, 0x0} },
+ { EXYNOS5_CMU_CLKSTOP_GSCL_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_CMU_CLKSTOP_ISP_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_CMU_CLKSTOP_MFC_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_CMU_CLKSTOP_G3D_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_CMU_CLKSTOP_DISP1_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_CMU_CLKSTOP_MAU_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
+ { EXYNOS5_CMU_SYSCLK_GSCL_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_CMU_SYSCLK_ISP_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_CMU_SYSCLK_MFC_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_CMU_SYSCLK_G3D_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_CMU_SYSCLK_DISP1_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_CMU_SYSCLK_MAU_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
+ { EXYNOS5_CMU_RESET_GSCL_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_CMU_RESET_ISP_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_CMU_RESET_MFC_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_CMU_RESET_G3D_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_CMU_RESET_DISP1_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
+ { EXYNOS5_CMU_RESET_MAU_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
+ { PMU_TABLE_END,},
+};
+
+void __iomem *exynos5_list_both_cnt_feed[] = {
+ EXYNOS5_ARM_CORE0_OPTION,
+ EXYNOS5_ARM_CORE1_OPTION,
+ EXYNOS5_ARM_COMMON_OPTION,
+ EXYNOS5_GSCL_OPTION,
+ EXYNOS5_ISP_OPTION,
+ EXYNOS5_MFC_OPTION,
+ EXYNOS5_G3D_OPTION,
+ EXYNOS5_DISP1_OPTION,
+ EXYNOS5_MAU_OPTION,
+ EXYNOS5_TOP_PWR_OPTION,
+ EXYNOS5_TOP_PWR_SYSMEM_OPTION,
+};
+
+void __iomem *exynos5_list_diable_wfi_wfe[] = {
+ EXYNOS5_ARM_CORE1_OPTION,
+ EXYNOS5_FSYS_ARM_OPTION,
+ EXYNOS5_ISP_ARM_OPTION,
+};
+
+static void exynos5_init_pmu(void)
{
unsigned int i;
+ unsigned int tmp;
+
+ /*
+ * Enable both SC_FEEDBACK and SC_COUNTER
+ */
+ for (i = 0 ; i < ARRAY_SIZE(exynos5_list_both_cnt_feed) ; i++) {
+ tmp = __raw_readl(exynos5_list_both_cnt_feed[i]);
+ tmp |= (EXYNOS5_USE_SC_FEEDBACK |
+ EXYNOS5_USE_SC_COUNTER);
+ __raw_writel(tmp, exynos5_list_both_cnt_feed[i]);
+ }
+
+ /*
+ * SKIP_DEACTIVATE_ACEACP_IN_PWDN_BITFIELD Enable
+ * MANUAL_L2RSTDISABLE_CONTROL_BITFIELD Enable
+ */
+ tmp = __raw_readl(EXYNOS5_ARM_COMMON_OPTION);
+ tmp |= (EXYNOS5_MANUAL_L2RSTDISABLE_CONTROL |
+ EXYNOS5_SKIP_DEACTIVATE_ACEACP_IN_PWDN);
+ __raw_writel(tmp, EXYNOS5_ARM_COMMON_OPTION);
+
+ /*
+ * Disable WFI/WFE on XXX_OPTION
+ */
+ for (i = 0 ; i < ARRAY_SIZE(exynos5_list_diable_wfi_wfe) ; i++) {
+ tmp = __raw_readl(exynos5_list_diable_wfi_wfe[i]);
+ tmp &= ~(EXYNOS5_OPTION_USE_STANDBYWFE |
+ EXYNOS5_OPTION_USE_STANDBYWFI);
+ __raw_writel(tmp, exynos5_list_diable_wfi_wfe[i]);
+ }
+}
+
+void exynos_sys_powerdown_conf(enum sys_powerdown mode)
+{
+ unsigned int i;
+
+ if (soc_is_exynos5250())
+ exynos5_init_pmu();
- for (i = 0; (exynos4_pmu_config[i].reg != PMU_TABLE_END) ; i++)
- __raw_writel(exynos4_pmu_config[i].val[mode],
- exynos4_pmu_config[i].reg);
+ for (i = 0; (exynos_pmu_config[i].reg != PMU_TABLE_END) ; i++)
+ __raw_writel(exynos_pmu_config[i].val[mode],
+ exynos_pmu_config[i].reg);
if (soc_is_exynos4412()) {
for (i = 0; exynos4412_pmu_config[i].reg != PMU_TABLE_END ; i++)
}
}
-static int __init exynos4_pmu_init(void)
+static int __init exynos_pmu_init(void)
{
- exynos4_pmu_config = exynos4210_pmu_config;
+ exynos_pmu_config = exynos4210_pmu_config;
if (soc_is_exynos4210()) {
- exynos4_pmu_config = exynos4210_pmu_config;
+ exynos_pmu_config = exynos4210_pmu_config;
pr_info("EXYNOS4210 PMU Initialize\n");
} else if (soc_is_exynos4212() || soc_is_exynos4412()) {
- exynos4_pmu_config = exynos4x12_pmu_config;
+ exynos_pmu_config = exynos4x12_pmu_config;
pr_info("EXYNOS4x12 PMU Initialize\n");
+ } else if (soc_is_exynos5250()) {
+ exynos_pmu_config = exynos5250_pmu_config;
+ pr_info("EXYNOS5250 PMU Initialize\n");
} else {
- pr_info("EXYNOS4: PMU not supported\n");
+ pr_info("EXYNOS: PMU not supported\n");
}
return 0;
}
-arch_initcall(exynos4_pmu_init);
+arch_initcall(exynos_pmu_init);
#include <linux/clockchips.h>
#include <linux/io.h>
#include <linux/export.h>
+#include <linux/gpio.h>
#include <mach/udc.h>
#include <mach/hardware.h>
7, 8, 9, 10, 11, 12, -1, -1,
};
-int gpio_to_irq(int gpio)
+static int ixp4xx_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
{
int irq;
}
return -EINVAL;
}
-EXPORT_SYMBOL(gpio_to_irq);
int irq_to_gpio(unsigned int irq)
{
unsigned long ixp4xx_exp_bus_size;
EXPORT_SYMBOL(ixp4xx_exp_bus_size);
+static int ixp4xx_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
+{
+ gpio_line_config(gpio, IXP4XX_GPIO_IN);
+
+ return 0;
+}
+
+static int ixp4xx_gpio_direction_output(struct gpio_chip *chip, unsigned gpio,
+ int level)
+{
+ gpio_line_set(gpio, level);
+ gpio_line_config(gpio, IXP4XX_GPIO_OUT);
+
+ return 0;
+}
+
+static int ixp4xx_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
+{
+ int value;
+
+ gpio_line_get(gpio, &value);
+
+ return value;
+}
+
+static void ixp4xx_gpio_set_value(struct gpio_chip *chip, unsigned gpio,
+ int value)
+{
+ gpio_line_set(gpio, value);
+}
+
+static struct gpio_chip ixp4xx_gpio_chip = {
+ .label = "IXP4XX_GPIO_CHIP",
+ .direction_input = ixp4xx_gpio_direction_input,
+ .direction_output = ixp4xx_gpio_direction_output,
+ .get = ixp4xx_gpio_get_value,
+ .set = ixp4xx_gpio_set_value,
+ .to_irq = ixp4xx_gpio_to_irq,
+ .base = 0,
+ .ngpio = 16,
+};
+
void __init ixp4xx_sys_init(void)
{
ixp4xx_exp_bus_size = SZ_16M;
platform_add_devices(ixp4xx_devices, ARRAY_SIZE(ixp4xx_devices));
+ gpiochip_add(&ixp4xx_gpio_chip);
+
if (cpu_is_ixp46x()) {
int region;
-/*
- * arch/arm/mach-ixp4xx/include/mach/gpio.h
- *
- * IXP4XX GPIO wrappers for arch-neutral GPIO calls
- *
- * Written by Milan Svoboda <msvoboda@ra.rockwell.com>
- * Based on PXA implementation by Philipp Zabel <philipp.zabel@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#ifndef __ASM_ARCH_IXP4XX_GPIO_H
-#define __ASM_ARCH_IXP4XX_GPIO_H
-
-#include <linux/kernel.h>
-#include <mach/hardware.h>
-
-#define __ARM_GPIOLIB_COMPLEX
-
-static inline int gpio_request(unsigned gpio, const char *label)
-{
- return 0;
-}
-
-static inline void gpio_free(unsigned gpio)
-{
- might_sleep();
-
- return;
-}
-
-static inline int gpio_direction_input(unsigned gpio)
-{
- gpio_line_config(gpio, IXP4XX_GPIO_IN);
- return 0;
-}
-
-static inline int gpio_direction_output(unsigned gpio, int level)
-{
- gpio_line_set(gpio, level);
- gpio_line_config(gpio, IXP4XX_GPIO_OUT);
- return 0;
-}
-
-static inline int gpio_get_value(unsigned gpio)
-{
- int value;
-
- gpio_line_get(gpio, &value);
-
- return value;
-}
-
-static inline void gpio_set_value(unsigned gpio, int value)
-{
- gpio_line_set(gpio, value);
-}
-
-#include <asm-generic/gpio.h> /* cansleep wrappers */
-
-extern int gpio_to_irq(int gpio);
-#define gpio_to_irq gpio_to_irq
-extern int irq_to_gpio(unsigned int irq);
-
-#endif
+/* empty */
#define IRQ_S32416_WDT S3C2410_IRQSUB(27)
#define IRQ_S32416_AC97 S3C2410_IRQSUB(28)
+/* second interrupt-register of s3c2416/s3c2450 */
+
+#define S3C2416_IRQ(x) S3C2410_IRQ((x) + 54 + 29)
+#define IRQ_S3C2416_2D S3C2416_IRQ(0)
+#define IRQ_S3C2416_IIC1 S3C2416_IRQ(1)
+#define IRQ_S3C2416_RESERVED2 S3C2416_IRQ(2)
+#define IRQ_S3C2416_RESERVED3 S3C2416_IRQ(3)
+#define IRQ_S3C2416_PCM0 S3C2416_IRQ(4)
+#define IRQ_S3C2416_PCM1 S3C2416_IRQ(5)
+#define IRQ_S3C2416_I2S0 S3C2416_IRQ(6)
+#define IRQ_S3C2416_I2S1 S3C2416_IRQ(7)
/* extra irqs for s3c2440 */
#define IRQ_S3C2443_WDT S3C2410_IRQSUB(27)
#define IRQ_S3C2443_AC97 S3C2410_IRQSUB(28)
-#if defined(CONFIG_CPU_S3C2443) || defined(CONFIG_CPU_S3C2416)
+#if defined(CONFIG_CPU_S3C2416)
+#define NR_IRQS (IRQ_S3C2416_I2S1 + 1)
+#elif defined(CONFIG_CPU_S3C2443)
#define NR_IRQS (IRQ_S3C2443_AC97+1)
#else
#define NR_IRQS (IRQ_S3C2440_AC97+1)
#include <linux/ioport.h>
#include <linux/device.h>
#include <linux/io.h>
+#include <linux/syscore_ops.h>
#include <mach/hardware.h>
#include <asm/irq.h>
.irq_ack = s3c2416_irq_uart3_ack,
};
+/* second interrupt register */
+
+static inline void s3c2416_irq_ack_second(struct irq_data *data)
+{
+ unsigned long bitval = 1UL << (data->irq - IRQ_S3C2416_2D);
+
+ __raw_writel(bitval, S3C2416_SRCPND2);
+ __raw_writel(bitval, S3C2416_INTPND2);
+}
+
+static void s3c2416_irq_mask_second(struct irq_data *data)
+{
+ unsigned long bitval = 1UL << (data->irq - IRQ_S3C2416_2D);
+ unsigned long mask;
+
+ mask = __raw_readl(S3C2416_INTMSK2);
+ mask |= bitval;
+ __raw_writel(mask, S3C2416_INTMSK2);
+}
+
+static void s3c2416_irq_unmask_second(struct irq_data *data)
+{
+ unsigned long bitval = 1UL << (data->irq - IRQ_S3C2416_2D);
+ unsigned long mask;
+
+ mask = __raw_readl(S3C2416_INTMSK2);
+ mask &= ~bitval;
+ __raw_writel(mask, S3C2416_INTMSK2);
+}
+
+struct irq_chip s3c2416_irq_second = {
+ .irq_ack = s3c2416_irq_ack_second,
+ .irq_mask = s3c2416_irq_mask_second,
+ .irq_unmask = s3c2416_irq_unmask_second,
+};
+
+
/* IRQ initialisation code */
static int __init s3c2416_add_sub(unsigned int base,
return 0;
}
+static void __init s3c2416_irq_add_second(void)
+{
+ unsigned long pend;
+ unsigned long last;
+ int irqno;
+ int i;
+
+ /* first, clear all interrupts pending... */
+ last = 0;
+ for (i = 0; i < 4; i++) {
+ pend = __raw_readl(S3C2416_INTPND2);
+
+ if (pend == 0 || pend == last)
+ break;
+
+ __raw_writel(pend, S3C2416_SRCPND2);
+ __raw_writel(pend, S3C2416_INTPND2);
+ printk(KERN_INFO "irq: clearing pending status %08x\n",
+ (int)pend);
+ last = pend;
+ }
+
+ for (irqno = IRQ_S3C2416_2D; irqno <= IRQ_S3C2416_I2S1; irqno++) {
+ switch (irqno) {
+ case IRQ_S3C2416_RESERVED2:
+ case IRQ_S3C2416_RESERVED3:
+ /* no IRQ here */
+ break;
+ default:
+ irq_set_chip_and_handler(irqno, &s3c2416_irq_second,
+ handle_edge_irq);
+ set_irq_flags(irqno, IRQF_VALID);
+ }
+ }
+}
+
static int __init s3c2416_irq_add(struct device *dev,
struct subsys_interface *sif)
{
&s3c2416_irq_wdtac97,
IRQ_S3C2443_WDT, IRQ_S3C2443_AC97);
+ s3c2416_irq_add_second();
+
return 0;
}
arch_initcall(s3c2416_irq_init);
+#ifdef CONFIG_PM
+static struct sleep_save irq_save[] = {
+ SAVE_ITEM(S3C2416_INTMSK2),
+};
+
+int s3c2416_irq_suspend(void)
+{
+ s3c_pm_do_save(irq_save, ARRAY_SIZE(irq_save));
+
+ return 0;
+}
+
+void s3c2416_irq_resume(void)
+{
+ s3c_pm_do_restore(irq_save, ARRAY_SIZE(irq_save));
+}
+
+struct syscore_ops s3c2416_irq_syscore_ops = {
+ .suspend = s3c2416_irq_suspend,
+ .resume = s3c2416_irq_resume,
+};
+#endif
register_syscore_ops(&s3c2416_pm_syscore_ops);
#endif
register_syscore_ops(&s3c24xx_irq_syscore_ops);
+ register_syscore_ops(&s3c2416_irq_syscore_ops);
return device_register(&s3c2416_dev);
}
struct cpuidle_driver *drv,
int index)
{
- struct timeval before, after;
unsigned long tmp;
- int idle_time;
-
- local_irq_disable();
- do_gettimeofday(&before);
/* Setup PWRCFG to enter idle mode */
tmp = __raw_readl(S3C64XX_PWR_CFG);
cpu_do_idle();
- do_gettimeofday(&after);
- local_irq_enable();
- idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC +
- (after.tv_usec - before.tv_usec);
-
- dev->last_residency = idle_time;
return index;
}
-static struct cpuidle_state s3c64xx_cpuidle_set[] = {
- [0] = {
- .enter = s3c64xx_enter_idle,
- .exit_latency = 1,
- .target_residency = 1,
- .flags = CPUIDLE_FLAG_TIME_VALID,
- .name = "IDLE",
- .desc = "System active, ARM gated",
- },
-};
+static DEFINE_PER_CPU(struct cpuidle_device, s3c64xx_cpuidle_device);
static struct cpuidle_driver s3c64xx_cpuidle_driver = {
- .name = "s3c64xx_cpuidle",
- .owner = THIS_MODULE,
- .state_count = ARRAY_SIZE(s3c64xx_cpuidle_set),
-};
-
-static struct cpuidle_device s3c64xx_cpuidle_device = {
- .state_count = ARRAY_SIZE(s3c64xx_cpuidle_set),
+ .name = "s3c64xx_cpuidle",
+ .owner = THIS_MODULE,
+ .en_core_tk_irqen = 1,
+ .states = {
+ {
+ .enter = s3c64xx_enter_idle,
+ .exit_latency = 1,
+ .target_residency = 1,
+ .flags = CPUIDLE_FLAG_TIME_VALID,
+ .name = "IDLE",
+ .desc = "System active, ARM gated",
+ },
+ },
+ .state_count = 1,
};
static int __init s3c64xx_init_cpuidle(void)
{
int ret;
- memcpy(s3c64xx_cpuidle_driver.states, s3c64xx_cpuidle_set,
- sizeof(s3c64xx_cpuidle_set));
cpuidle_register_driver(&s3c64xx_cpuidle_driver);
ret = cpuidle_register_device(&s3c64xx_cpuidle_device);
},
};
+static const struct i2c_board_info wm6230_i2c_devs[] = {
+ { I2C_BOARD_INFO("wm9081", 0x6c),
+ .platform_data = &wm9081_pdata, },
+};
+
static __devinitdata const struct {
u8 id;
const char *name;
{ .id = 0x03, .name = "1252-EV1 Glenlivet" },
{ .id = 0x11, .name = "6249-EV2 Glenfarclas", },
{ .id = 0x14, .name = "6271-EV1 Lochnagar" },
- { .id = 0x15, .name = "XXXX-EV1 Bells" },
+ { .id = 0x15, .name = "6320-EV1 Bells",
+ .i2c_devs = wm6230_i2c_devs,
+ .num_i2c_devs = ARRAY_SIZE(wm6230_i2c_devs) },
{ .id = 0x21, .name = "1275-EV1 Mortlach" },
{ .id = 0x25, .name = "1274-EV1 Glencadam" },
{ .id = 0x31, .name = "1253-EV1 Tomatin",
.irq = S3C_EINT(0),
.platform_data = &glenfarclas_pmic_pdata },
+ { I2C_BOARD_INFO("wlf-gf-module", 0x22) },
{ I2C_BOARD_INFO("wlf-gf-module", 0x24) },
{ I2C_BOARD_INFO("wlf-gf-module", 0x25) },
{ I2C_BOARD_INFO("wlf-gf-module", 0x26) },
WARN(1, "nep_base unset\n");
}
}
+EXPORT_SYMBOL(neponset_ncr_frob);
static void neponset_set_mctrl(struct uart_port *port, u_int mctrl)
{
};
struct platform_device ab8500_device = {
- .name = "ab8500-i2c",
+ .name = "ab8500-core",
.id = 0,
.dev = {
.platform_data = &ab8500_platdata,
#include <linux/ata_platform.h>
#include <linux/smsc911x.h>
#include <linux/spinlock.h>
-#include <linux/device.h>
#include <linux/usb/isp1760.h>
#include <linux/clkdev.h>
#include <linux/mtd/physmap.h>
#include <asm/hardware/gic.h>
#include <asm/hardware/timer-sp.h>
#include <asm/hardware/sp810.h>
-#include <asm/hardware/gic.h>
#include <mach/ct-ca9x4.h>
#include <mach/motherboard.h>
extern int s3c2416_baseclk_add(void);
extern void s3c2416_restart(char mode, const char *cmd);
+
+extern struct syscore_ops s3c2416_irq_syscore_ops;
+
#else
#define s3c2416_init_clocks NULL
#define s3c2416_init_uarts NULL
typedef unsigned short __kernel_mode_t;
#define __kernel_mode_t __kernel_mode_t
-typedef unsigned short __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
-
typedef unsigned short __kernel_ipc_pid_t;
#define __kernel_ipc_pid_t __kernel_ipc_pid_t
ld.w r1, r0[TI_flags]
rjmp 1b
-2: mov r2, _TIF_SIGPENDING | _TIF_RESTORE_SIGMASK | _TIF_NOTIFY_RESUME
+2: mov r2, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME
tst r1, r2
breq 3f
unmask_interrupts
ld.w r1, r0[TI_flags]
rjmp fault_exit_work
-1: mov r2, _TIF_SIGPENDING | _TIF_RESTORE_SIGMASK
+1: mov r2, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME
tst r1, r2
breq 2f
unmask_interrupts
#include <asm/ucontext.h>
#include <asm/syscalls.h>
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
struct pt_regs *regs)
{
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
static inline void
handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
- sigset_t *oldset, struct pt_regs *regs, int syscall)
+ struct pt_regs *regs, int syscall)
{
int ret;
/*
* Set up the stack frame
*/
- ret = setup_rt_frame(sig, ka, info, oldset, regs);
+ ret = setup_rt_frame(sig, ka, info, sigmask_to_save(), regs);
/*
* Check that the resulting registers are sane
*/
ret |= !valid_user_regs(regs);
- if (ret != 0) {
- force_sigsegv(sig, current);
- return;
- }
-
/*
* Block the signal if we were successful.
*/
- block_sigmask(ka, sig);
- clear_thread_flag(TIF_RESTORE_SIGMASK);
+ if (ret != 0)
+ force_sigsegv(sig, current);
+ else
+ signal_delivered(sig, info, ka, regs, 0);
}
/*
* doesn't want to handle. Thus you cannot kill init even with a
* SIGKILL even by mistake.
*/
-int do_signal(struct pt_regs *regs, sigset_t *oldset, int syscall)
+static void do_signal(struct pt_regs *regs, int syscall)
{
siginfo_t info;
int signr;
* without doing anything if so.
*/
if (!user_mode(regs))
- return 0;
-
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else if (!oldset)
- oldset = ¤t->blocked;
+ return;
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (syscall) {
if (signr == 0) {
/* No signal to deliver -- put the saved sigmask back */
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
- return 0;
+ restore_saved_sigmask();
+ return;
}
- handle_signal(signr, &ka, &info, oldset, regs, syscall);
- return 1;
+ handle_signal(signr, &ka, &info, regs, syscall);
}
asmlinkage void do_notify_resume(struct pt_regs *regs, struct thread_info *ti)
if ((sysreg_read(SR) & MODE_MASK) == MODE_SUPERVISOR)
syscall = 1;
- if (ti->flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
- do_signal(regs, ¤t->blocked, syscall);
+ if (ti->flags & _TIF_SIGPENDING))
+ do_signal(regs, syscall);
if (ti->flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
typedef unsigned short __kernel_mode_t;
#define __kernel_mode_t __kernel_mode_t
-typedef unsigned short __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
-
typedef unsigned int __kernel_ipc_pid_t;
#define __kernel_ipc_pid_t __kernel_ipc_pid_t
TIF_NEED_RESCHED */
#define TIF_MEMDIE 4 /* is terminating due to OOM killer */
#define TIF_RESTORE_SIGMASK 5 /* restore signal mask in do_signal() */
-#define TIF_FREEZE 6 /* is freezing for suspend */
#define TIF_IRQ_SYNC 7 /* sync pipeline stage */
#define TIF_NOTIFY_RESUME 8 /* callback before returning to user */
#define TIF_SINGLESTEP 9
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
-#define _TIF_FREEZE (1<<TIF_FREEZE)
#define _TIF_IRQ_SYNC (1<<TIF_IRQ_SYNC)
#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
#define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP)
#include <asm/fixed_code.h>
#include <asm/syscall.h>
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
/* Location of the trace bit in SYSCFG. */
#define TRACE_BITS 0x0001
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (rt_restore_sigcontext(regs, &frame->uc.uc_mcontext, &r0))
err |= copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
if (err)
- goto give_sigsegv;
+ return -EFAULT;
/* Set up registers for signal handler */
- wrusp((unsigned long)frame);
if (current->personality & FDPIC_FUNCPTRS) {
struct fdpic_func_descriptor __user *funcptr =
(struct fdpic_func_descriptor *) ka->sa.sa_handler;
- __get_user(regs->pc, &funcptr->text);
- __get_user(regs->p3, &funcptr->GOT);
+ u32 pc, p3;
+ err |= __get_user(pc, &funcptr->text);
+ err |= __get_user(p3, &funcptr->GOT);
+ if (err)
+ return -EFAULT;
+ regs->pc = pc;
+ regs->p3 = p3;
} else
regs->pc = (unsigned long)ka->sa.sa_handler;
+ wrusp((unsigned long)frame);
regs->rets = SIGRETURN_STUB;
regs->r0 = frame->sig;
regs->r2 = (unsigned long)(&frame->uc);
return 0;
-
- give_sigsegv:
- force_sigsegv(sig, current);
- return -EFAULT;
}
static inline void
/*
* OK, we're invoking a handler
*/
-static int
+static void
handle_signal(int sig, siginfo_t *info, struct k_sigaction *ka,
- sigset_t *oldset, struct pt_regs *regs)
+ struct pt_regs *regs)
{
- int ret;
-
/* are we from a system call? to see pt_regs->orig_p0 */
if (regs->orig_p0 >= 0)
/* If so, check system call restarting.. */
handle_restart(regs, ka, 1);
/* set up the stack frame */
- ret = setup_rt_frame(sig, ka, info, oldset, regs);
-
- if (ret == 0)
- block_sigmask(ka, sig);
-
- return ret;
+ if (setup_rt_frame(sig, ka, info, sigmask_to_save(), regs) < 0)
+ force_sigsegv(sig, current);
+ else
+ signal_delivered(sig, info, ka, regs,
+ test_thread_flag(TIF_SINGLESTEP));
}
/*
siginfo_t info;
int signr;
struct k_sigaction ka;
- sigset_t *oldset;
current->thread.esp0 = (unsigned long)regs;
- if (try_to_freeze())
- goto no_signal;
-
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
/* Whee! Actually deliver the signal. */
- if (handle_signal(signr, &info, &ka, oldset, regs) == 0) {
- /* a signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
-
- tracehook_signal_handler(signr, &info, &ka, regs,
- test_thread_flag(TIF_SINGLESTEP));
- }
-
+ handle_signal(signr, &info, &ka, regs);
return;
}
- no_signal:
/* Did we come from a system call? */
if (regs->orig_p0 >= 0)
/* Restart the system call - no handlers present */
/* if there's no signal to deliver, we just put the saved sigmask
* back */
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
+ restore_saved_sigmask();
}
/*
*/
asmlinkage void do_notify_resume(struct pt_regs *regs)
{
- if (test_thread_flag(TIF_SIGPENDING) || test_thread_flag(TIF_RESTORE_SIGMASK))
+ if (test_thread_flag(TIF_SIGPENDING))
do_signal(regs);
if (test_thread_flag(TIF_NOTIFY_RESUME)) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
#include <linux/hardirq.h>
#include <linux/thread_info.h>
#include <linux/mm.h>
+#include <linux/oom.h>
+#include <linux/sched.h>
#include <linux/uaccess.h>
#include <linux/module.h>
#include <linux/kallsyms.h>
{
struct task_struct *p;
struct mm_struct *mm;
- unsigned long flags, offset;
- unsigned char in_atomic = (bfin_read_IPEND() & 0x10) || in_atomic();
+ unsigned long offset;
struct rb_node *n;
#ifdef CONFIG_KALLSYMS
* mappings of all our processes and see if we can't be a whee
* bit more specific
*/
- write_lock_irqsave(&tasklist_lock, flags);
+ read_lock(&tasklist_lock);
for_each_process(p) {
- mm = (in_atomic ? p->mm : get_task_mm(p));
- if (!mm)
- continue;
+ struct task_struct *t;
- if (!down_read_trylock(&mm->mmap_sem)) {
- if (!in_atomic)
- mmput(mm);
+ t = find_lock_task_mm(p);
+ if (!t)
continue;
- }
+
+ mm = t->mm;
+ if (!down_read_trylock(&mm->mmap_sem))
+ goto __continue;
for (n = rb_first(&mm->mm_rb); n; n = rb_next(n)) {
struct vm_area_struct *vma;
if (address >= vma->vm_start && address < vma->vm_end) {
char _tmpbuf[256];
- char *name = p->comm;
+ char *name = t->comm;
struct file *file = vma->vm_file;
if (file) {
name, vma->vm_start, vma->vm_end);
up_read(&mm->mmap_sem);
- if (!in_atomic)
- mmput(mm);
+ task_unlock(t);
if (buf[0] == '\0')
sprintf(buf, "[ %s ] dynamic memory", name);
}
up_read(&mm->mmap_sem);
- if (!in_atomic)
- mmput(mm);
+__continue:
+ task_unlock(t);
}
/*
sprintf(buf, "/* kernel dynamic memory */");
done:
- write_unlock_irqrestore(&tasklist_lock, flags);
+ read_unlock(&tasklist_lock);
}
#define EXPAND_LEN ((1 << CONFIG_DEBUG_BFIN_HWTRACE_EXPAND_LEN) * 256 - 1)
jump .Lresume_userspace_1;
.Lsyscall_sigpending:
- cc = BITTST(r7, TIF_RESTORE_SIGMASK);
- if cc jump .Lsyscall_do_signals;
cc = BITTST(r7, TIF_SIGPENDING);
if cc jump .Lsyscall_do_signals;
cc = BITTST(r7, TIF_NOTIFY_RESUME);
#include <asm/cacheflush.h>
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
/*
* Do a signal return, undo the signal stack.
*/
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
/*
* handle the actual delivery of a signal to userspace
*/
-static int handle_signal(int sig,
+static void handle_signal(int sig,
siginfo_t *info, struct k_sigaction *ka,
- sigset_t *oldset, struct pt_regs *regs,
- int syscall)
+ struct pt_regs *regs, int syscall)
{
int ret;
}
/* Set up the stack frame */
- ret = setup_rt_frame(sig, ka, info, oldset, regs);
- if (ret == 0)
- block_sigmask(ka, sig);
-
- return ret;
+ if (setup_rt_frame(sig, ka, info, sigmask_to_save(), regs) < 0)
+ return;
+ signal_delivered(sig, info, ka, regs, 0);
}
/*
{
struct k_sigaction ka;
siginfo_t info;
- sigset_t *oldset;
int signr;
/* we want the common case to go fast, which is why we may in certain
if (!user_mode(regs))
return;
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
- if (handle_signal(signr, &info, &ka, oldset,
- regs, syscall) == 0) {
- /* a signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
-
- tracehook_signal_handler(signr, &info, &ka, regs, 0);
- }
-
+ handle_signal(signr, &info, &ka, regs, syscall);
return;
}
/* if there's no signal to deliver, we just put the saved sigmask
* back */
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
+ restore_saved_sigmask();
}
/*
int syscall)
{
/* deal with pending signal delivery */
- if (thread_info_flags & ((1 << TIF_SIGPENDING) |
- (1 << TIF_RESTORE_SIGMASK)))
+ if (thread_info_flags & (1 << TIF_SIGPENDING))
do_signal(regs, syscall);
if (thread_info_flags & (1 << TIF_NOTIFY_RESUME)) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
bool
default y
select HAVE_IDE
+ select GENERIC_ATOMIC64
select HAVE_GENERIC_HARDIRQS
select GENERIC_IRQ_SHOW
select GENERIC_IOMAP
#define DEBUG_SIG 0
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
/* a syscall in Linux/CRIS is a break 13 instruction which is 2 bytes */
/* manipulate regs so that upon return, it will be re-executed */
sizeof(frame->extramask))))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->sc))
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
* OK, we're invoking a handler
*/
-static inline int handle_signal(int canrestart, unsigned long sig,
+static inline void handle_signal(int canrestart, unsigned long sig,
siginfo_t *info, struct k_sigaction *ka,
- sigset_t *oldset, struct pt_regs *regs)
+ struct pt_regs *regs)
{
+ sigset_t *oldset = sigmask_to_save();
int ret;
/* Are we from a system call? */
ret = setup_frame(sig, ka, oldset, regs);
if (ret == 0)
- block_sigmask(ka, sig);
-
- return ret;
+ signal_delivered(sig, info, ka, regs, 0);
}
/*
siginfo_t info;
int signr;
struct k_sigaction ka;
- sigset_t *oldset;
/*
* We want the common case to go fast, which
if (!user_mode(regs))
return;
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
/* Whee! Actually deliver the signal. */
- if (handle_signal(canrestart, signr, &info, &ka,
- oldset, regs)) {
- /* a signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- }
+ handle_signal(canrestart, signr, &info, &ka, regs);
return;
}
/* if there's no signal to deliver, we just put the saved sigmask
* back */
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
+ restore_saved_sigmask();
}
extern unsigned long cris_signal_return_page;
-/* Flag to check if a signal is blockable. */
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
/*
* A syscall in CRIS is really a "break 13" instruction, which is 2
* bytes. The registers is manipulated so upon return the instruction
sizeof(frame->extramask))))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->sc))
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
}
/* Invoke a signal handler to, well, handle the signal. */
-static inline int
+static inline void
handle_signal(int canrestart, unsigned long sig,
siginfo_t *info, struct k_sigaction *ka,
- sigset_t *oldset, struct pt_regs * regs)
+ struct pt_regs * regs)
{
+ sigset_t *oldset = sigmask_to_save();
int ret;
/* Check if this got called from a system call. */
ret = setup_frame(sig, ka, oldset, regs);
if (ret == 0)
- block_sigmask(ka, sig);
-
- return ret;
+ signal_delivered(sig, info, ka, regs, 0);
}
/*
int signr;
siginfo_t info;
struct k_sigaction ka;
- sigset_t *oldset;
/*
* The common case should go fast, which is why this point is
if (!user_mode(regs))
return;
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
/* Whee! Actually deliver the signal. */
- if (handle_signal(canrestart, signr, &info, &ka,
- oldset, regs)) {
- /* a signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- }
-
+ handle_signal(canrestart, signr, &info, &ka, regs);
return;
}
/* if there's no signal to deliver, we just put the saved sigmask
* back */
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
+ restore_saved_sigmask();
}
asmlinkage void
typedef unsigned short __kernel_mode_t;
#define __kernel_mode_t __kernel_mode_t
-typedef unsigned short __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
-
typedef unsigned short __kernel_ipc_pid_t;
#define __kernel_ipc_pid_t __kernel_ipc_pid_t
if (thread_info_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
typedef unsigned short __kernel_mode_t;
#define __kernel_mode_t __kernel_mode_t
-typedef unsigned short __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
-
typedef unsigned short __kernel_ipc_pid_t;
#define __kernel_ipc_pid_t __kernel_ipc_pid_t
#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
#define TIF_SINGLESTEP 4 /* restore singlestep on return to user mode */
#define TIF_RESTORE_SIGMASK 5 /* restore signal mask in do_signal() */
-#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */
-#define TIF_MEMDIE 17 /* is terminating due to OOM killer */
+#define TIF_POLLING_NRFLAG 6 /* true if poll_idle() is polling TIF_NEED_RESCHED */
+#define TIF_MEMDIE 7 /* is terminating due to OOM killer */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
-#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */
-#define _TIF_ALLWORK_MASK 0x0000FFFF /* work to do on any return to u-space */
+/* work to do on interrupt/exception return */
+#define _TIF_WORK_MASK \
+ (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_SINGLESTEP)
+
+/* work to do on any return to u-space */
+#define _TIF_ALLWORK_MASK (_TIF_WORK_MASK | _TIF_SYSCALL_TRACE)
+
+#if _TIF_ALLWORK_MASK >= 0x2000
+#error "_TIF_ALLWORK_MASK won't fit in an ANDI now (see entry.S)"
+#endif
/*
* Thread-synchronous status.
__syscall_exit:
LEDS 0x6300
- sti gr8,@(gr28,#REG_GR(8)) ; save return value
+ # keep current PSR in GR23
+ movsg psr,gr23
- # rebuild saved psr - execve will change it for init/main.c
ldi @(gr28,#REG_PSR),gr22
+
+ sti.p gr8,@(gr28,#REG_GR(8)) ; save return value
+
+ # rebuild saved psr - execve will change it for init/main.c
srli gr22,#1,gr5
andi.p gr22,#~PSR_PS,gr22
andi gr5,#PSR_PS,gr5
or gr5,gr22,gr22
- ori gr22,#PSR_S,gr22
-
- # keep current PSR in GR23
- movsg psr,gr23
+ ori.p gr22,#PSR_S,gr22
# make sure we don't miss an interrupt setting need_resched or sigpending between
# sampling and the RETT
movgs gr23,psr
ldi @(gr15,#TI_FLAGS),gr4
- sethi.p %hi(_TIF_ALLWORK_MASK),gr5
- setlo %lo(_TIF_ALLWORK_MASK),gr5
- andcc gr4,gr5,gr0,icc0
+ andicc gr4,#_TIF_ALLWORK_MASK,gr0,icc0
bne icc0,#0,__syscall_exit_work
# restore all registers and return
__entry_return_from_user_interrupt:
LEDS 0x6402
ldi @(gr15,#TI_FLAGS),gr4
- sethi.p %hi(_TIF_WORK_MASK),gr5
- setlo %lo(_TIF_WORK_MASK),gr5
- andcc gr4,gr5,gr0,icc0
+ andicc gr4,#_TIF_WORK_MASK,gr0,icc0
beq icc0,#1,__entry_return_direct
__entry_work_pending:
LEDS 0x6401
ldi @(gr15,#TI_FLAGS),gr4
- sethi.p %hi(_TIF_WORK_MASK),gr5
- setlo %lo(_TIF_WORK_MASK),gr5
- andcc gr4,gr5,gr0,icc0
+ andicc gr4,#_TIF_WORK_MASK,gr0,icc0
beq icc0,#1,__entry_return_direct
andicc gr4,#_TIF_NEED_RESCHED,gr0,icc0
bne icc0,#1,__entry_work_resched
# perform syscall exit tracing
__syscall_exit_work:
LEDS 0x6340
- andicc gr4,#_TIF_SYSCALL_TRACE,gr0,icc0
+ andicc gr22,#PSR_PS,gr0,icc1 ; don't handle on return to kernel mode
+ andicc.p gr4,#_TIF_SYSCALL_TRACE,gr0,icc0
+ bne icc1,#0,__entry_return_direct
beq icc0,#1,__entry_work_pending
movsg psr,gr23
#define DEBUG_SIG 0
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
struct fdpic_func_descriptor {
unsigned long text;
unsigned long GOT;
__copy_from_user(&set.sig[1], &frame->extramask, sizeof(frame->extramask)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(&frame->sc, &gr8))
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(&frame->uc.uc_mcontext, &gr8))
/*
* OK, we're invoking a handler
*/
-static int handle_signal(unsigned long sig, siginfo_t *info,
- struct k_sigaction *ka, sigset_t *oldset)
+static void handle_signal(unsigned long sig, siginfo_t *info,
+ struct k_sigaction *ka)
{
+ sigset_t *oldset = sigmask_to_save();
int ret;
/* Are we from a system call? */
else
ret = setup_frame(sig, ka, oldset);
- if (ret == 0)
- block_sigmask(ka, sig);
-
- return ret;
+ if (ret)
+ return;
+ signal_delivered(sig, info, ka, __frame,
+ test_thread_flag(TIF_SINGLESTEP));
} /* end handle_signal() */
/*****************************************************************************/
{
struct k_sigaction ka;
siginfo_t info;
- sigset_t *oldset;
int signr;
- /*
- * We want the common case to go fast, which
- * is why we may in certain cases get here from
- * kernel mode. Just return without doing anything
- * if so.
- */
- if (!user_mode(__frame))
- return;
-
- if (try_to_freeze())
- goto no_signal;
-
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
signr = get_signal_to_deliver(&info, &ka, __frame, NULL);
if (signr > 0) {
- if (handle_signal(signr, &info, &ka, oldset) == 0) {
- /* a signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
-
- tracehook_signal_handler(signr, &info, &ka, __frame,
- test_thread_flag(TIF_SINGLESTEP));
- }
-
+ handle_signal(signr, &info, &ka);
return;
}
-no_signal:
/* Did we come from a system call? */
if (__frame->syscallno != -1) {
/* Restart the system call - no handlers present */
/* if there's no signal to deliver, we just put the saved sigmask
* back */
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
-
+ restore_saved_sigmask();
} /* end do_signal() */
/*****************************************************************************/
clear_thread_flag(TIF_SINGLESTEP);
/* deal with pending signal delivery */
- if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
+ if (thread_info_flags & _TIF_SIGPENDING))
do_signal();
/* deal with notification on about to resume userspace execution */
if (thread_info_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(__frame);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
} /* end do_notify_resume() */
typedef unsigned short __kernel_mode_t;
#define __kernel_mode_t __kernel_mode_t
-typedef unsigned short __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
-
typedef unsigned short __kernel_ipc_pid_t;
#define __kernel_ipc_pid_t __kernel_ipc_pid_t
#include <asm/traps.h>
#include <asm/ucontext.h>
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
/*
* Atomically swap in the new signal mask, and wait for a signal.
*/
sizeof(frame->extramask))))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->sc, &er0))
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &er0))
*/
static void
handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
- sigset_t *oldset, struct pt_regs * regs)
+ struct pt_regs * regs)
{
+ sigset_t *oldset = sigmask_to_save();
int ret;
/* are we from a system call? */
if (regs->orig_er0 >= 0) {
else
ret = setup_frame(sig, ka, oldset, regs);
- if (!ret) {
- block_sigmask(ka, sig);
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- }
+ if (!ret)
+ signal_delivered(sig, info, ka, regs, 0);
}
/*
siginfo_t info;
int signr;
struct k_sigaction ka;
- sigset_t *oldset;
/*
* We want the common case to go fast, which
if ((regs->ccr & 0x10))
return;
- if (try_to_freeze())
- goto no_signal;
-
current->thread.esp0 = (unsigned long) regs;
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
/* Whee! Actually deliver the signal. */
- handle_signal(signr, &info, &ka, oldset, regs);
+ handle_signal(signr, &info, &ka, regs);
return;
}
- no_signal:
/* Did we come from a system call? */
if (regs->orig_er0 >= 0) {
/* Restart the system call - no handlers present */
}
/* If there's no signal to deliver, we just restore the saved mask. */
- if (test_and_clear_thread_flag(TIF_RESTORE_SIGMASK))
- set_current_blocked(¤t->saved_sigmask);
+ restore_saved_sigmask();
}
asmlinkage void do_notify_resume(struct pt_regs *regs, u32 thread_info_flags)
if (thread_info_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
#include <asm/signal.h>
#include <asm/vdso.h>
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
struct rt_sigframe {
unsigned long tramp[2];
struct siginfo info;
/*
* Setup invocation of signal handler
*/
-static int handle_signal(int sig, siginfo_t *info, struct k_sigaction *ka,
- sigset_t *oldset, struct pt_regs *regs)
+static void handle_signal(int sig, siginfo_t *info, struct k_sigaction *ka,
+ struct pt_regs *regs)
{
- int rc;
-
/*
* If we're handling a signal that aborted a system call,
* set up the error return value before adding the signal
* Set up the stack frame; not doing the SA_SIGINFO thing. We
* only set up the rt_frame flavor.
*/
- rc = setup_rt_frame(sig, ka, info, oldset, regs);
-
/* If there was an error on setup, no signal was delivered. */
- if (rc)
- return rc;
-
- block_sigmask(ka, sig);
+ if (setup_rt_frame(sig, ka, info, sigmask_to_save(), regs) < 0)
+ return;
- return 0;
+ signal_delivered(sig, info, ka, regs,
+ test_thread_flag(TIF_SINGLESTEP));
}
/*
if (!user_mode(regs))
return;
- if (try_to_freeze())
- goto no_signal;
-
signo = get_signal_to_deliver(&info, &sigact, regs, NULL);
if (signo > 0) {
- sigset_t *oldset;
-
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
- if (handle_signal(signo, &info, &sigact, oldset, regs) == 0) {
- /*
- * Successful delivery case. The saved sigmask is
- * stored in the signal frame, and will be restored
- * by sigreturn. We can clear the TIF flag.
- */
- clear_thread_flag(TIF_RESTORE_SIGMASK);
-
- tracehook_signal_handler(signo, &info, &sigact, regs,
- test_thread_flag(TIF_SINGLESTEP));
- }
+ handle_signal(signo, &info, &sigact, regs);
return;
}
-no_signal:
/*
* If we came from a system call, handle the restart.
*/
no_restart:
/* If there's no signal to deliver, put the saved sigmask back */
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
+ restore_saved_sigmask();
}
void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags)
if (thread_info_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
if (__copy_from_user(&blocked, &frame->uc.uc_sigmask, sizeof(blocked)))
goto badframe;
- sigdelsetmask(&blocked, ~_BLOCKABLE);
set_current_blocked(&blocked);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
#ifndef _ASM_IA64_POSIX_TYPES_H
#define _ASM_IA64_POSIX_TYPES_H
-typedef unsigned int __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
-
typedef unsigned long __kernel_sigset_t; /* at least 32 bits */
#include <asm-generic/posix_types.h>
{
struct thread_info *ti = current_thread_info();
ti->status |= TS_RESTORE_SIGMASK;
- set_bit(TIF_SIGPENDING, &ti->flags);
+ WARN_ON(!test_bit(TIF_SIGPENDING, &ti->flags));
+}
+static inline void clear_restore_sigmask(void)
+{
+ current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+}
+static inline bool test_restore_sigmask(void)
+{
+ return current_thread_info()->status & TS_RESTORE_SIGMASK;
+}
+static inline bool test_and_clear_restore_sigmask(void)
+{
+ struct thread_info *ti = current_thread_info();
+ if (!(ti->status & TS_RESTORE_SIGMASK))
+ return false;
+ ti->status &= ~TS_RESTORE_SIGMASK;
+ return true;
}
#endif /* !__ASSEMBLY__ */
spin_unlock(&(x)->ctx_lock);
}
-static inline unsigned long
-pfm_get_unmapped_area(struct file *file, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags, unsigned long exec)
-{
- return get_unmapped_area(file, addr, len, pgoff, flags);
-}
-
/* forward declaration */
static const struct dentry_operations pfmfs_dentry_operations;
down_write(&task->mm->mmap_sem);
/* find some free area in address space, must have mmap sem held */
- vma->vm_start = pfm_get_unmapped_area(NULL, 0, size, 0, MAP_PRIVATE|MAP_ANONYMOUS, 0);
- if (vma->vm_start == 0UL) {
+ vma->vm_start = get_unmapped_area(NULL, 0, size, 0, MAP_PRIVATE|MAP_ANONYMOUS);
+ if (IS_ERR_VALUE(vma->vm_start)) {
DPRINT(("Cannot find unmapped area for size %ld\n", size));
up_write(&task->mm->mmap_sem);
goto error;
if (test_thread_flag(TIF_NOTIFY_RESUME)) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(&scr->pt);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
/* copy user rbs to kernel rbs */
#define DEBUG_SIG 0
#define STACK_ALIGN 16 /* minimal alignment for stack pointer */
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
#if _NSIG_WORDS > 1
# define PUT_SIGSET(k,u) __copy_to_user((u)->sig, (k)->sig, sizeof(sigset_t))
if (GET_SIGSET(&set, &sc->sc_mask))
goto give_sigsegv;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(sc, scr))
}
static long
-handle_signal (unsigned long sig, struct k_sigaction *ka, siginfo_t *info, sigset_t *oldset,
+handle_signal (unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
struct sigscratch *scr)
{
- if (!setup_frame(sig, ka, info, oldset, scr))
+ if (!setup_frame(sig, ka, info, sigmask_to_save(), scr))
return 0;
- block_sigmask(ka, sig);
-
- /*
- * Let tracing know that we've done the handler setup.
- */
- tracehook_signal_handler(sig, info, ka, &scr->pt,
+ signal_delivered(sig, info, ka, &scr->pt,
test_thread_flag(TIF_SINGLESTEP));
return 1;
ia64_do_signal (struct sigscratch *scr, long in_syscall)
{
struct k_sigaction ka;
- sigset_t *oldset;
siginfo_t info;
long restart = in_syscall;
long errno = scr->pt.r8;
if (!user_mode(&scr->pt))
return;
- if (current_thread_info()->status & TS_RESTORE_SIGMASK)
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
/*
* This only loops in the rare cases of handle_signal() failing, in which case we
* need to push through a forced SIGSEGV.
* Whee! Actually deliver the signal. If the delivery failed, we need to
* continue to iterate in this loop so we can deliver the SIGSEGV...
*/
- if (handle_signal(signr, &ka, &info, oldset, scr)) {
- /*
- * A signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TS_RESTORE_SIGMASK flag.
- */
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+ if (handle_signal(signr, &ka, &info, scr))
return;
- }
}
/* Did we come from a system call? */
/* if there's no signal to deliver, we just put the saved sigmask
* back */
- if (current_thread_info()->status & TS_RESTORE_SIGMASK) {
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
+ restore_saved_sigmask();
}
ia64_mremap (unsigned long addr, unsigned long old_len, unsigned long new_len, unsigned long flags,
unsigned long new_addr)
{
- extern unsigned long do_mremap (unsigned long addr,
- unsigned long old_len,
- unsigned long new_len,
- unsigned long flags,
- unsigned long new_addr);
-
- down_write(¤t->mm->mmap_sem);
- {
- addr = do_mremap(addr, old_len, new_len, flags, new_addr);
- }
- up_write(¤t->mm->mmap_sem);
-
- if (IS_ERR((void *) addr))
- return addr;
-
- force_successful_syscall_return();
+ addr = sys_mremap(addr, old_len, new_len, flags, new_addr);
+ if (!IS_ERR((void *) addr))
+ force_successful_syscall_return();
return addr;
}
typedef unsigned short __kernel_mode_t;
#define __kernel_mode_t __kernel_mode_t
-typedef unsigned short __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
-
typedef unsigned short __kernel_ipc_pid_t;
#define __kernel_ipc_pid_t __kernel_ipc_pid_t
#define DEBUG_SIG 0
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
asmlinkage int
sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
unsigned long r2, unsigned long r3, unsigned long r4,
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &result))
* OK, we're invoking a handler
*/
-static int
+static void
handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
- sigset_t *oldset, struct pt_regs *regs)
+ struct pt_regs *regs)
{
/* Are we from a system call? */
if (regs->syscall_nr >= 0) {
}
/* Set up the stack frame */
- if (setup_rt_frame(sig, ka, info, oldset, regs))
- return -EFAULT;
+ if (setup_rt_frame(sig, ka, info, sigmask_to_save(), regs))
+ return;
- block_sigmask(ka, sig);
- return 0;
+ signal_delivered(sig, info, ka, regs, 0);
}
/*
siginfo_t info;
int signr;
struct k_sigaction ka;
- sigset_t *oldset;
/*
* We want the common case to go fast, which
if (!user_mode(regs))
return;
- if (try_to_freeze())
- goto no_signal;
-
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
/* Re-enable any watchpoints before delivering the
*/
/* Whee! Actually deliver the signal. */
- if (handle_signal(signr, &ka, &info, oldset, regs) == 0)
- clear_thread_flag(TIF_RESTORE_SIGMASK);
+ handle_signal(signr, &ka, &info, regs);
return;
}
- no_signal:
/* Did we come from a system call? */
if (regs->syscall_nr >= 0) {
/* Restart the system call - no handlers present */
prev_insn(regs);
}
}
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
+ restore_saved_sigmask();
}
/*
if (thread_info_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
clear_thread_flag(TIF_IRET);
typedef unsigned short __kernel_mode_t;
#define __kernel_mode_t __kernel_mode_t
-typedef unsigned short __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
-
typedef unsigned short __kernel_ipc_pid_t;
#define __kernel_ipc_pid_t __kernel_ipc_pid_t
#include <asm/traps.h>
#include <asm/ucontext.h>
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
#ifdef CONFIG_MMU
/*
sizeof(frame->extramask))))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->sc, frame + 1))
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (rt_restore_ucontext(regs, sw, &frame->uc))
*/
static void
handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info,
- sigset_t *oldset, struct pt_regs *regs)
+ struct pt_regs *regs)
{
+ sigset_t *oldset = sigmask_to_save();
int err;
/* are we from a system call? */
if (regs->orig_d0 >= 0)
if (err)
return;
- block_sigmask(ka, sig);
+ signal_delivered(sig, info, ka, regs, 0);
if (test_thread_flag(TIF_DELAYED_TRACE)) {
regs->sr &= ~0x8000;
send_sig(SIGTRAP, current, 1);
}
-
- clear_thread_flag(TIF_RESTORE_SIGMASK);
}
/*
siginfo_t info;
struct k_sigaction ka;
int signr;
- sigset_t *oldset;
current->thread.esp0 = (unsigned long) regs;
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
/* Whee! Actually deliver the signal. */
- handle_signal(signr, &ka, &info, oldset, regs);
+ handle_signal(signr, &ka, &info, regs);
return;
}
handle_restart(regs, NULL, 0);
/* If there's no signal to deliver, we just restore the saved mask. */
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
+ restore_saved_sigmask();
}
void do_notify_resume(struct pt_regs *regs)
if (test_thread_flag(TIF_SIGPENDING))
do_signal(regs);
- if (test_and_clear_thread_flag(TIF_NOTIFY_RESUME)) {
+ if (test_and_clear_thread_flag(TIF_NOTIFY_RESUME))
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
- }
}
{
struct thread_info *ti = current_thread_info();
ti->status |= TS_RESTORE_SIGMASK;
- set_bit(TIF_SIGPENDING, (unsigned long *)&ti->flags);
+ WARN_ON(!test_bit(TIF_SIGPENDING, (unsigned long *)&ti->flags));
+}
+static inline void clear_restore_sigmask(void)
+{
+ current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+}
+static inline bool test_restore_sigmask(void)
+{
+ return current_thread_info()->status & TS_RESTORE_SIGMASK;
+}
+static inline bool test_and_clear_restore_sigmask(void)
+{
+ struct thread_info *ti = current_thread_info();
+ if (!(ti->status & TS_RESTORE_SIGMASK))
+ return false;
+ ti->status &= ~TS_RESTORE_SIGMASK;
+ return true;
}
#endif
#include <asm/cacheflush.h>
#include <asm/syscalls.h>
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
asmlinkage long
sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
struct pt_regs *regs)
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &rval))
* OK, we're invoking a handler
*/
-static int
+static void
handle_signal(unsigned long sig, struct k_sigaction *ka,
- siginfo_t *info, sigset_t *oldset, struct pt_regs *regs)
+ siginfo_t *info, struct pt_regs *regs)
{
+ sigset_t *oldset = sigmask_to_save();
int ret;
/* Set up the stack frame */
ret = setup_rt_frame(sig, ka, NULL, oldset, regs);
if (ret)
- return ret;
-
- block_sigmask(ka, sig);
+ return;
- return 0;
+ signal_delivered(sig, info, ka, regs, 0);
}
/*
siginfo_t info;
int signr;
struct k_sigaction ka;
- sigset_t *oldset;
#ifdef DEBUG_SIG
printk(KERN_INFO "do signal: %p %d\n", regs, in_syscall);
printk(KERN_INFO "do signal2: %lx %lx %ld [%lx]\n", regs->pc, regs->r1,
regs->r12, current_thread_info()->flags);
#endif
- if (current_thread_info()->status & TS_RESTORE_SIGMASK)
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
/* Whee! Actually deliver the signal. */
if (in_syscall)
handle_restart(regs, &ka, 1);
- if (!handle_signal(signr, &ka, &info, oldset, regs)) {
- /*
- * A signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TS_RESTORE_SIGMASK flag.
- */
- current_thread_info()->status &=
- ~TS_RESTORE_SIGMASK;
- }
+ handle_signal(signr, &ka, &info, regs);
return;
}
* If there's no signal to deliver, we just put the saved sigmask
* back.
*/
- if (current_thread_info()->status & TS_RESTORE_SIGMASK) {
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
+ restore_saved_sigmask();
}
void do_notify_resume(struct pt_regs *regs, int in_syscall)
if (test_thread_flag(TIF_SIGPENDING))
do_signal(regs, in_syscall);
- if (test_and_clear_thread_flag(TIF_NOTIFY_RESUME)) {
+ if (test_and_clear_thread_flag(TIF_NOTIFY_RESUME))
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
- }
}
select ARCH_REQUIRE_GPIOLIB
select SWAP_IO_SPACE
select BOOT_RAW
- select HAVE_CLK
- select MIPS_MACHINE
+ select HAVE_MACH_CLKDEV
+ select CLKDEV_LOOKUP
+ select USE_OF
config LASAT
bool "LASAT Networks platforms"
config FORCE_MAX_ZONEORDER
int "Maximum zone order"
- range 13 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
- default "13" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
- range 12 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
- default "12" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
+ range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
+ default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
+ range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
+ default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
+ range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
+ default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
range 11 64
default "11"
help
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/init.h>
+#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/leds.h>
Say 'Y' here if you want your kernel to support the
Atheros AP81 reference board.
+config ATH79_MACH_DB120
+ bool "Atheros DB120 reference board"
+ select SOC_AR934X
+ select ATH79_DEV_GPIO_BUTTONS
+ select ATH79_DEV_LEDS_GPIO
+ select ATH79_DEV_SPI
+ select ATH79_DEV_USB
+ select ATH79_DEV_WMAC
+ help
+ Say 'Y' here if you want your kernel to support the
+ Atheros DB120 reference board.
+
config ATH79_MACH_PB44
bool "Atheros PB44 reference board"
select SOC_AR71XX
config SOC_AR71XX
select USB_ARCH_HAS_EHCI
select USB_ARCH_HAS_OHCI
+ select HW_HAS_PCI
def_bool n
config SOC_AR724X
select USB_ARCH_HAS_EHCI
select USB_ARCH_HAS_OHCI
select HW_HAS_PCI
+ select PCI_AR724X if PCI
def_bool n
config SOC_AR913X
select USB_ARCH_HAS_EHCI
def_bool n
+config SOC_AR934X
+ select USB_ARCH_HAS_EHCI
+ select HW_HAS_PCI
+ select PCI_AR724X if PCI
+ def_bool n
+
+config PCI_AR724X
+ def_bool n
+
config ATH79_DEV_GPIO_BUTTONS
def_bool n
def_bool n
config ATH79_DEV_WMAC
- depends on (SOC_AR913X || SOC_AR933X)
+ depends on (SOC_AR913X || SOC_AR933X || SOC_AR934X)
def_bool n
endif
obj-y := prom.o setup.o irq.o common.o clock.o gpio.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
+obj-$(CONFIG_PCI) += pci.o
#
# Devices
#
obj-$(CONFIG_ATH79_MACH_AP121) += mach-ap121.o
obj-$(CONFIG_ATH79_MACH_AP81) += mach-ap81.o
+obj-$(CONFIG_ATH79_MACH_DB120) += mach-db120.o
obj-$(CONFIG_ATH79_MACH_PB44) += mach-pb44.o
obj-$(CONFIG_ATH79_MACH_UBNT_XM) += mach-ubnt-xm.o
/*
* Atheros AR71XX/AR724X/AR913X common routines
*
+ * Copyright (C) 2010-2011 Jaiganesh Narayanan <jnarayanan@atheros.com>
* Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
*
+ * Parts of this file are based on Atheros' 2.6.15/2.6.31 BSP
+ *
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
ath79_uart_clk.rate = ath79_ref_clk.rate;
}
+static void __init ar934x_clocks_init(void)
+{
+ u32 pll, out_div, ref_div, nint, frac, clk_ctrl, postdiv;
+ u32 cpu_pll, ddr_pll;
+ u32 bootstrap;
+
+ bootstrap = ath79_reset_rr(AR934X_RESET_REG_BOOTSTRAP);
+ if (bootstrap & AR934X_BOOTSTRAP_REF_CLK_40)
+ ath79_ref_clk.rate = 40 * 1000 * 1000;
+ else
+ ath79_ref_clk.rate = 25 * 1000 * 1000;
+
+ pll = ath79_pll_rr(AR934X_PLL_CPU_CONFIG_REG);
+ out_div = (pll >> AR934X_PLL_CPU_CONFIG_OUTDIV_SHIFT) &
+ AR934X_PLL_CPU_CONFIG_OUTDIV_MASK;
+ ref_div = (pll >> AR934X_PLL_CPU_CONFIG_REFDIV_SHIFT) &
+ AR934X_PLL_CPU_CONFIG_REFDIV_MASK;
+ nint = (pll >> AR934X_PLL_CPU_CONFIG_NINT_SHIFT) &
+ AR934X_PLL_CPU_CONFIG_NINT_MASK;
+ frac = (pll >> AR934X_PLL_CPU_CONFIG_NFRAC_SHIFT) &
+ AR934X_PLL_CPU_CONFIG_NFRAC_MASK;
+
+ cpu_pll = nint * ath79_ref_clk.rate / ref_div;
+ cpu_pll += frac * ath79_ref_clk.rate / (ref_div * (2 << 6));
+ cpu_pll /= (1 << out_div);
+
+ pll = ath79_pll_rr(AR934X_PLL_DDR_CONFIG_REG);
+ out_div = (pll >> AR934X_PLL_DDR_CONFIG_OUTDIV_SHIFT) &
+ AR934X_PLL_DDR_CONFIG_OUTDIV_MASK;
+ ref_div = (pll >> AR934X_PLL_DDR_CONFIG_REFDIV_SHIFT) &
+ AR934X_PLL_DDR_CONFIG_REFDIV_MASK;
+ nint = (pll >> AR934X_PLL_DDR_CONFIG_NINT_SHIFT) &
+ AR934X_PLL_DDR_CONFIG_NINT_MASK;
+ frac = (pll >> AR934X_PLL_DDR_CONFIG_NFRAC_SHIFT) &
+ AR934X_PLL_DDR_CONFIG_NFRAC_MASK;
+
+ ddr_pll = nint * ath79_ref_clk.rate / ref_div;
+ ddr_pll += frac * ath79_ref_clk.rate / (ref_div * (2 << 10));
+ ddr_pll /= (1 << out_div);
+
+ clk_ctrl = ath79_pll_rr(AR934X_PLL_CPU_DDR_CLK_CTRL_REG);
+
+ postdiv = (clk_ctrl >> AR934X_PLL_CPU_DDR_CLK_CTRL_CPU_POST_DIV_SHIFT) &
+ AR934X_PLL_CPU_DDR_CLK_CTRL_CPU_POST_DIV_MASK;
+
+ if (clk_ctrl & AR934X_PLL_CPU_DDR_CLK_CTRL_CPU_PLL_BYPASS)
+ ath79_cpu_clk.rate = ath79_ref_clk.rate;
+ else if (clk_ctrl & AR934X_PLL_CPU_DDR_CLK_CTRL_CPUCLK_FROM_CPUPLL)
+ ath79_cpu_clk.rate = cpu_pll / (postdiv + 1);
+ else
+ ath79_cpu_clk.rate = ddr_pll / (postdiv + 1);
+
+ postdiv = (clk_ctrl >> AR934X_PLL_CPU_DDR_CLK_CTRL_DDR_POST_DIV_SHIFT) &
+ AR934X_PLL_CPU_DDR_CLK_CTRL_DDR_POST_DIV_MASK;
+
+ if (clk_ctrl & AR934X_PLL_CPU_DDR_CLK_CTRL_DDR_PLL_BYPASS)
+ ath79_ddr_clk.rate = ath79_ref_clk.rate;
+ else if (clk_ctrl & AR934X_PLL_CPU_DDR_CLK_CTRL_DDRCLK_FROM_DDRPLL)
+ ath79_ddr_clk.rate = ddr_pll / (postdiv + 1);
+ else
+ ath79_ddr_clk.rate = cpu_pll / (postdiv + 1);
+
+ postdiv = (clk_ctrl >> AR934X_PLL_CPU_DDR_CLK_CTRL_AHB_POST_DIV_SHIFT) &
+ AR934X_PLL_CPU_DDR_CLK_CTRL_AHB_POST_DIV_MASK;
+
+ if (clk_ctrl & AR934X_PLL_CPU_DDR_CLK_CTRL_AHB_PLL_BYPASS)
+ ath79_ahb_clk.rate = ath79_ref_clk.rate;
+ else if (clk_ctrl & AR934X_PLL_CPU_DDR_CLK_CTRL_AHBCLK_FROM_DDRPLL)
+ ath79_ahb_clk.rate = ddr_pll / (postdiv + 1);
+ else
+ ath79_ahb_clk.rate = cpu_pll / (postdiv + 1);
+
+ ath79_wdt_clk.rate = ath79_ref_clk.rate;
+ ath79_uart_clk.rate = ath79_ref_clk.rate;
+}
+
void __init ath79_clocks_init(void)
{
if (soc_is_ar71xx())
ar913x_clocks_init();
else if (soc_is_ar933x())
ar933x_clocks_init();
+ else if (soc_is_ar934x())
+ ar934x_clocks_init();
else
BUG();
/*
* Atheros AR71XX/AR724X/AR913X common routines
*
- * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2010-2011 Jaiganesh Narayanan <jnarayanan@atheros.com>
+ * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
*
+ * Parts of this file are based on Atheros' 2.6.15/2.6.31 BSP
+ *
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
reg = AR913X_RESET_REG_RESET_MODULE;
else if (soc_is_ar933x())
reg = AR933X_RESET_REG_RESET_MODULE;
+ else if (soc_is_ar934x())
+ reg = AR934X_RESET_REG_RESET_MODULE;
else
BUG();
reg = AR913X_RESET_REG_RESET_MODULE;
else if (soc_is_ar933x())
reg = AR933X_RESET_REG_RESET_MODULE;
+ else if (soc_is_ar934x())
+ reg = AR934X_RESET_REG_RESET_MODULE;
else
BUG();
if (soc_is_ar71xx() ||
soc_is_ar724x() ||
- soc_is_ar913x()) {
+ soc_is_ar913x() ||
+ soc_is_ar934x()) {
ath79_uart_data[0].uartclk = clk_get_rate(clk);
platform_device_register(&ath79_uart_device);
} else if (soc_is_ar933x()) {
struct gpio_keys_button *p;
int err;
- p = kmalloc(nbuttons * sizeof(*p), GFP_KERNEL);
+ p = kmemdup(buttons, nbuttons * sizeof(*p), GFP_KERNEL);
if (!p)
return;
- memcpy(p, buttons, nbuttons * sizeof(*p));
-
pdev = platform_device_alloc("gpio-keys-polled", id);
if (!pdev)
goto err_free_buttons;
struct gpio_led *p;
int err;
- p = kmalloc(num_leds * sizeof(*p), GFP_KERNEL);
+ p = kmemdup(leds, num_leds * sizeof(*p), GFP_KERNEL);
if (!p)
return;
- memcpy(p, leds, num_leds * sizeof(*p));
-
pdev = platform_device_alloc("leds-gpio", id);
if (!pdev)
goto err_free_leds;
/*
* Atheros AR913X/AR933X SoC built-in WMAC device support
*
+ * Copyright (C) 2010-2011 Jaiganesh Narayanan <jnarayanan@atheros.com>
* Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
*
+ * Parts of this file are based on Atheros 2.6.15/2.6.31 BSP
+ *
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
/* .start and .end fields are filled dynamically */
.flags = IORESOURCE_MEM,
}, {
- .start = ATH79_CPU_IRQ_IP2,
- .end = ATH79_CPU_IRQ_IP2,
+ /* .start and .end fields are filled dynamically */
.flags = IORESOURCE_IRQ,
},
};
ath79_wmac_resources[0].start = AR913X_WMAC_BASE;
ath79_wmac_resources[0].end = AR913X_WMAC_BASE + AR913X_WMAC_SIZE - 1;
+ ath79_wmac_resources[1].start = ATH79_CPU_IRQ_IP2;
+ ath79_wmac_resources[1].end = ATH79_CPU_IRQ_IP2;
}
ath79_wmac_resources[0].start = AR933X_WMAC_BASE;
ath79_wmac_resources[0].end = AR933X_WMAC_BASE + AR933X_WMAC_SIZE - 1;
+ ath79_wmac_resources[1].start = ATH79_CPU_IRQ_IP2;
+ ath79_wmac_resources[1].end = ATH79_CPU_IRQ_IP2;
t = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP);
if (t & AR933X_BOOTSTRAP_REF_CLK_40)
ath79_wmac_data.external_reset = ar933x_wmac_reset;
}
+static void ar934x_wmac_setup(void)
+{
+ u32 t;
+
+ ath79_wmac_device.name = "ar934x_wmac";
+
+ ath79_wmac_resources[0].start = AR934X_WMAC_BASE;
+ ath79_wmac_resources[0].end = AR934X_WMAC_BASE + AR934X_WMAC_SIZE - 1;
+ ath79_wmac_resources[1].start = ATH79_IP2_IRQ(1);
+ ath79_wmac_resources[1].start = ATH79_IP2_IRQ(1);
+
+ t = ath79_reset_rr(AR934X_RESET_REG_BOOTSTRAP);
+ if (t & AR934X_BOOTSTRAP_REF_CLK_40)
+ ath79_wmac_data.is_clk_25mhz = false;
+ else
+ ath79_wmac_data.is_clk_25mhz = true;
+}
+
void __init ath79_register_wmac(u8 *cal_data)
{
if (soc_is_ar913x())
ar913x_wmac_setup();
else if (soc_is_ar933x())
ar933x_wmac_setup();
+ else if (soc_is_ar934x())
+ ar934x_wmac_setup();
else
BUG();
case REV_ID_MAJOR_AR7241:
case REV_ID_MAJOR_AR7242:
case REV_ID_MAJOR_AR913X:
+ case REV_ID_MAJOR_AR9341:
+ case REV_ID_MAJOR_AR9342:
+ case REV_ID_MAJOR_AR9344:
_prom_putchar = prom_putchar_ar71xx;
break;
/*
* Atheros AR71XX/AR724X/AR913X GPIO API support
*
- * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2010-2011 Jaiganesh Narayanan <jnarayanan@atheros.com>
+ * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
*
+ * Parts of this file are based on Atheros' 2.6.15/2.6.31 BSP
+ *
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
return 0;
}
+static int ar934x_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+ void __iomem *base = ath79_gpio_base;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ath79_gpio_lock, flags);
+
+ __raw_writel(__raw_readl(base + AR71XX_GPIO_REG_OE) | (1 << offset),
+ base + AR71XX_GPIO_REG_OE);
+
+ spin_unlock_irqrestore(&ath79_gpio_lock, flags);
+
+ return 0;
+}
+
+static int ar934x_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
+ int value)
+{
+ void __iomem *base = ath79_gpio_base;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ath79_gpio_lock, flags);
+
+ if (value)
+ __raw_writel(1 << offset, base + AR71XX_GPIO_REG_SET);
+ else
+ __raw_writel(1 << offset, base + AR71XX_GPIO_REG_CLEAR);
+
+ __raw_writel(__raw_readl(base + AR71XX_GPIO_REG_OE) & ~(1 << offset),
+ base + AR71XX_GPIO_REG_OE);
+
+ spin_unlock_irqrestore(&ath79_gpio_lock, flags);
+
+ return 0;
+}
+
static struct gpio_chip ath79_gpio_chip = {
.label = "ath79",
.get = ath79_gpio_get_value,
ath79_gpio_count = AR913X_GPIO_COUNT;
else if (soc_is_ar933x())
ath79_gpio_count = AR933X_GPIO_COUNT;
+ else if (soc_is_ar934x())
+ ath79_gpio_count = AR934X_GPIO_COUNT;
else
BUG();
ath79_gpio_base = ioremap_nocache(AR71XX_GPIO_BASE, AR71XX_GPIO_SIZE);
ath79_gpio_chip.ngpio = ath79_gpio_count;
+ if (soc_is_ar934x()) {
+ ath79_gpio_chip.direction_input = ar934x_gpio_direction_input;
+ ath79_gpio_chip.direction_output = ar934x_gpio_direction_output;
+ }
err = gpiochip_add(&ath79_gpio_chip);
if (err)
/*
* Atheros AR71xx/AR724x/AR913x specific interrupt handling
*
- * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2010-2011 Jaiganesh Narayanan <jnarayanan@atheros.com>
+ * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
*
- * Parts of this file are based on Atheros' 2.6.15 BSP
+ * Parts of this file are based on Atheros' 2.6.15/2.6.31 BSP
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
#include <asm/mach-ath79/ar71xx_regs.h>
#include "common.h"
-static unsigned int ath79_ip2_flush_reg;
-static unsigned int ath79_ip3_flush_reg;
+static void (*ath79_ip2_handler)(void);
+static void (*ath79_ip3_handler)(void);
static void ath79_misc_irq_handler(unsigned int irq, struct irq_desc *desc)
{
if (soc_is_ar71xx() || soc_is_ar913x())
ath79_misc_irq_chip.irq_mask_ack = ar71xx_misc_irq_mask;
- else if (soc_is_ar724x() || soc_is_ar933x())
+ else if (soc_is_ar724x() || soc_is_ar933x() || soc_is_ar934x())
ath79_misc_irq_chip.irq_ack = ar724x_misc_irq_ack;
else
BUG();
irq_set_chained_handler(ATH79_CPU_IRQ_MISC, ath79_misc_irq_handler);
}
+static void ar934x_ip2_irq_dispatch(unsigned int irq, struct irq_desc *desc)
+{
+ u32 status;
+
+ disable_irq_nosync(irq);
+
+ status = ath79_reset_rr(AR934X_RESET_REG_PCIE_WMAC_INT_STATUS);
+
+ if (status & AR934X_PCIE_WMAC_INT_PCIE_ALL) {
+ ath79_ddr_wb_flush(AR934X_DDR_REG_FLUSH_PCIE);
+ generic_handle_irq(ATH79_IP2_IRQ(0));
+ } else if (status & AR934X_PCIE_WMAC_INT_WMAC_ALL) {
+ ath79_ddr_wb_flush(AR934X_DDR_REG_FLUSH_WMAC);
+ generic_handle_irq(ATH79_IP2_IRQ(1));
+ } else {
+ spurious_interrupt();
+ }
+
+ enable_irq(irq);
+}
+
+static void ar934x_ip2_irq_init(void)
+{
+ int i;
+
+ for (i = ATH79_IP2_IRQ_BASE;
+ i < ATH79_IP2_IRQ_BASE + ATH79_IP2_IRQ_COUNT; i++)
+ irq_set_chip_and_handler(i, &dummy_irq_chip,
+ handle_level_irq);
+
+ irq_set_chained_handler(ATH79_CPU_IRQ_IP2, ar934x_ip2_irq_dispatch);
+}
+
asmlinkage void plat_irq_dispatch(void)
{
unsigned long pending;
if (pending & STATUSF_IP7)
do_IRQ(ATH79_CPU_IRQ_TIMER);
- else if (pending & STATUSF_IP2) {
- ath79_ddr_wb_flush(ath79_ip2_flush_reg);
- do_IRQ(ATH79_CPU_IRQ_IP2);
- }
+ else if (pending & STATUSF_IP2)
+ ath79_ip2_handler();
else if (pending & STATUSF_IP4)
do_IRQ(ATH79_CPU_IRQ_GE0);
else if (pending & STATUSF_IP5)
do_IRQ(ATH79_CPU_IRQ_GE1);
- else if (pending & STATUSF_IP3) {
- ath79_ddr_wb_flush(ath79_ip3_flush_reg);
- do_IRQ(ATH79_CPU_IRQ_USB);
- }
+ else if (pending & STATUSF_IP3)
+ ath79_ip3_handler();
else if (pending & STATUSF_IP6)
do_IRQ(ATH79_CPU_IRQ_MISC);
spurious_interrupt();
}
+/*
+ * The IP2/IP3 lines are tied to a PCI/WMAC/USB device. Drivers for
+ * these devices typically allocate coherent DMA memory, however the
+ * DMA controller may still have some unsynchronized data in the FIFO.
+ * Issue a flush in the handlers to ensure that the driver sees
+ * the update.
+ */
+static void ar71xx_ip2_handler(void)
+{
+ ath79_ddr_wb_flush(AR71XX_DDR_REG_FLUSH_PCI);
+ do_IRQ(ATH79_CPU_IRQ_IP2);
+}
+
+static void ar724x_ip2_handler(void)
+{
+ ath79_ddr_wb_flush(AR724X_DDR_REG_FLUSH_PCIE);
+ do_IRQ(ATH79_CPU_IRQ_IP2);
+}
+
+static void ar913x_ip2_handler(void)
+{
+ ath79_ddr_wb_flush(AR913X_DDR_REG_FLUSH_WMAC);
+ do_IRQ(ATH79_CPU_IRQ_IP2);
+}
+
+static void ar933x_ip2_handler(void)
+{
+ ath79_ddr_wb_flush(AR933X_DDR_REG_FLUSH_WMAC);
+ do_IRQ(ATH79_CPU_IRQ_IP2);
+}
+
+static void ar934x_ip2_handler(void)
+{
+ do_IRQ(ATH79_CPU_IRQ_IP2);
+}
+
+static void ar71xx_ip3_handler(void)
+{
+ ath79_ddr_wb_flush(AR71XX_DDR_REG_FLUSH_USB);
+ do_IRQ(ATH79_CPU_IRQ_USB);
+}
+
+static void ar724x_ip3_handler(void)
+{
+ ath79_ddr_wb_flush(AR724X_DDR_REG_FLUSH_USB);
+ do_IRQ(ATH79_CPU_IRQ_USB);
+}
+
+static void ar913x_ip3_handler(void)
+{
+ ath79_ddr_wb_flush(AR913X_DDR_REG_FLUSH_USB);
+ do_IRQ(ATH79_CPU_IRQ_USB);
+}
+
+static void ar933x_ip3_handler(void)
+{
+ ath79_ddr_wb_flush(AR933X_DDR_REG_FLUSH_USB);
+ do_IRQ(ATH79_CPU_IRQ_USB);
+}
+
+static void ar934x_ip3_handler(void)
+{
+ ath79_ddr_wb_flush(AR934X_DDR_REG_FLUSH_USB);
+ do_IRQ(ATH79_CPU_IRQ_USB);
+}
+
void __init arch_init_irq(void)
{
if (soc_is_ar71xx()) {
- ath79_ip2_flush_reg = AR71XX_DDR_REG_FLUSH_PCI;
- ath79_ip3_flush_reg = AR71XX_DDR_REG_FLUSH_USB;
+ ath79_ip2_handler = ar71xx_ip2_handler;
+ ath79_ip3_handler = ar71xx_ip3_handler;
} else if (soc_is_ar724x()) {
- ath79_ip2_flush_reg = AR724X_DDR_REG_FLUSH_PCIE;
- ath79_ip3_flush_reg = AR724X_DDR_REG_FLUSH_USB;
+ ath79_ip2_handler = ar724x_ip2_handler;
+ ath79_ip3_handler = ar724x_ip3_handler;
} else if (soc_is_ar913x()) {
- ath79_ip2_flush_reg = AR913X_DDR_REG_FLUSH_WMAC;
- ath79_ip3_flush_reg = AR913X_DDR_REG_FLUSH_USB;
+ ath79_ip2_handler = ar913x_ip2_handler;
+ ath79_ip3_handler = ar913x_ip3_handler;
} else if (soc_is_ar933x()) {
- ath79_ip2_flush_reg = AR933X_DDR_REG_FLUSH_WMAC;
- ath79_ip3_flush_reg = AR933X_DDR_REG_FLUSH_USB;
- } else
+ ath79_ip2_handler = ar933x_ip2_handler;
+ ath79_ip3_handler = ar933x_ip3_handler;
+ } else if (soc_is_ar934x()) {
+ ath79_ip2_handler = ar934x_ip2_handler;
+ ath79_ip3_handler = ar934x_ip3_handler;
+ } else {
BUG();
+ }
cp0_perfcount_irq = ATH79_MISC_IRQ_PERFC;
mips_cpu_irq_init();
ath79_misc_irq_init();
+
+ if (soc_is_ar934x())
+ ar934x_ip2_irq_init();
}
--- /dev/null
+/*
+ * Atheros DB120 reference board support
+ *
+ * Copyright (c) 2011 Qualcomm Atheros
+ * Copyright (c) 2011 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include <linux/pci.h>
+#include <linux/ath9k_platform.h>
+
+#include "machtypes.h"
+#include "dev-gpio-buttons.h"
+#include "dev-leds-gpio.h"
+#include "dev-spi.h"
+#include "dev-wmac.h"
+#include "pci.h"
+
+#define DB120_GPIO_LED_WLAN_5G 12
+#define DB120_GPIO_LED_WLAN_2G 13
+#define DB120_GPIO_LED_STATUS 14
+#define DB120_GPIO_LED_WPS 15
+
+#define DB120_GPIO_BTN_WPS 16
+
+#define DB120_KEYS_POLL_INTERVAL 20 /* msecs */
+#define DB120_KEYS_DEBOUNCE_INTERVAL (3 * DB120_KEYS_POLL_INTERVAL)
+
+#define DB120_WMAC_CALDATA_OFFSET 0x1000
+#define DB120_PCIE_CALDATA_OFFSET 0x5000
+
+static struct gpio_led db120_leds_gpio[] __initdata = {
+ {
+ .name = "db120:green:status",
+ .gpio = DB120_GPIO_LED_STATUS,
+ .active_low = 1,
+ },
+ {
+ .name = "db120:green:wps",
+ .gpio = DB120_GPIO_LED_WPS,
+ .active_low = 1,
+ },
+ {
+ .name = "db120:green:wlan-5g",
+ .gpio = DB120_GPIO_LED_WLAN_5G,
+ .active_low = 1,
+ },
+ {
+ .name = "db120:green:wlan-2g",
+ .gpio = DB120_GPIO_LED_WLAN_2G,
+ .active_low = 1,
+ },
+};
+
+static struct gpio_keys_button db120_gpio_keys[] __initdata = {
+ {
+ .desc = "WPS button",
+ .type = EV_KEY,
+ .code = KEY_WPS_BUTTON,
+ .debounce_interval = DB120_KEYS_DEBOUNCE_INTERVAL,
+ .gpio = DB120_GPIO_BTN_WPS,
+ .active_low = 1,
+ },
+};
+
+static struct spi_board_info db120_spi_info[] = {
+ {
+ .bus_num = 0,
+ .chip_select = 0,
+ .max_speed_hz = 25000000,
+ .modalias = "s25sl064a",
+ }
+};
+
+static struct ath79_spi_platform_data db120_spi_data = {
+ .bus_num = 0,
+ .num_chipselect = 1,
+};
+
+#ifdef CONFIG_PCI
+static struct ath9k_platform_data db120_ath9k_data;
+
+static int db120_pci_plat_dev_init(struct pci_dev *dev)
+{
+ switch (PCI_SLOT(dev->devfn)) {
+ case 0:
+ dev->dev.platform_data = &db120_ath9k_data;
+ break;
+ }
+
+ return 0;
+}
+
+static void __init db120_pci_init(u8 *eeprom)
+{
+ memcpy(db120_ath9k_data.eeprom_data, eeprom,
+ sizeof(db120_ath9k_data.eeprom_data));
+
+ ath79_pci_set_plat_dev_init(db120_pci_plat_dev_init);
+ ath79_register_pci();
+}
+#else
+static inline void db120_pci_init(void) {}
+#endif /* CONFIG_PCI */
+
+static void __init db120_setup(void)
+{
+ u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
+
+ ath79_register_leds_gpio(-1, ARRAY_SIZE(db120_leds_gpio),
+ db120_leds_gpio);
+ ath79_register_gpio_keys_polled(-1, DB120_KEYS_POLL_INTERVAL,
+ ARRAY_SIZE(db120_gpio_keys),
+ db120_gpio_keys);
+ ath79_register_spi(&db120_spi_data, db120_spi_info,
+ ARRAY_SIZE(db120_spi_info));
+ ath79_register_wmac(art + DB120_WMAC_CALDATA_OFFSET);
+ db120_pci_init(art + DB120_PCIE_CALDATA_OFFSET);
+}
+
+MIPS_MACHINE(ATH79_MACH_DB120, "DB120", "Atheros DB120 reference board",
+ db120_setup);
#include "dev-leds-gpio.h"
#include "dev-spi.h"
#include "dev-usb.h"
+#include "pci.h"
#define PB44_GPIO_I2C_SCL 0
#define PB44_GPIO_I2C_SDA 1
ath79_register_spi(&pb44_spi_data, pb44_spi_info,
ARRAY_SIZE(pb44_spi_info));
ath79_register_usb();
+ ath79_register_pci();
}
MIPS_MACHINE(ATH79_MACH_PB44, "PB44", "Atheros PB44 reference board",
#include <linux/init.h>
#include <linux/pci.h>
-
-#ifdef CONFIG_PCI
#include <linux/ath9k_platform.h>
-#include <asm/mach-ath79/pci-ath724x.h>
-#endif /* CONFIG_PCI */
+
+#include <asm/mach-ath79/irq.h>
#include "machtypes.h"
#include "dev-gpio-buttons.h"
#include "dev-leds-gpio.h"
#include "dev-spi.h"
+#include "pci.h"
#define UBNT_XM_GPIO_LED_L1 0
#define UBNT_XM_GPIO_LED_L2 1
#define UBNT_XM_KEYS_POLL_INTERVAL 20
#define UBNT_XM_KEYS_DEBOUNCE_INTERVAL (3 * UBNT_XM_KEYS_POLL_INTERVAL)
-#define UBNT_XM_PCI_IRQ 48
#define UBNT_XM_EEPROM_ADDR (u8 *) KSEG1ADDR(0x1fff1000)
static struct gpio_led ubnt_xm_leds_gpio[] __initdata = {
#ifdef CONFIG_PCI
static struct ath9k_platform_data ubnt_xm_eeprom_data;
-static struct ath724x_pci_data ubnt_xm_pci_data[] = {
- {
- .irq = UBNT_XM_PCI_IRQ,
- .pdata = &ubnt_xm_eeprom_data,
- },
-};
+static int ubnt_xm_pci_plat_dev_init(struct pci_dev *dev)
+{
+ switch (PCI_SLOT(dev->devfn)) {
+ case 0:
+ dev->dev.platform_data = &ubnt_xm_eeprom_data;
+ break;
+ }
+
+ return 0;
+}
+
+static void __init ubnt_xm_pci_init(void)
+{
+ memcpy(ubnt_xm_eeprom_data.eeprom_data, UBNT_XM_EEPROM_ADDR,
+ sizeof(ubnt_xm_eeprom_data.eeprom_data));
+
+ ath79_pci_set_plat_dev_init(ubnt_xm_pci_plat_dev_init);
+ ath79_register_pci();
+}
+#else
+static inline void ubnt_xm_pci_init(void) {}
#endif /* CONFIG_PCI */
static void __init ubnt_xm_init(void)
ath79_register_spi(&ubnt_xm_spi_data, ubnt_xm_spi_info,
ARRAY_SIZE(ubnt_xm_spi_info));
-#ifdef CONFIG_PCI
- memcpy(ubnt_xm_eeprom_data.eeprom_data, UBNT_XM_EEPROM_ADDR,
- sizeof(ubnt_xm_eeprom_data.eeprom_data));
-
- ath724x_pci_add_data(ubnt_xm_pci_data, ARRAY_SIZE(ubnt_xm_pci_data));
-#endif /* CONFIG_PCI */
-
+ ubnt_xm_pci_init();
}
MIPS_MACHINE(ATH79_MACH_UBNT_XM,
ATH79_MACH_GENERIC = 0,
ATH79_MACH_AP121, /* Atheros AP121 reference board */
ATH79_MACH_AP81, /* Atheros AP81 reference board */
+ ATH79_MACH_DB120, /* Atheros DB120 reference board */
ATH79_MACH_PB44, /* Atheros PB44 reference board */
ATH79_MACH_UBNT_XM, /* Ubiquiti Networks XM board rev 1.0 */
};
--- /dev/null
+/*
+ * Atheros AR71XX/AR724X specific PCI setup code
+ *
+ * Copyright (C) 2011 René Bolldorf <xsecute@googlemail.com>
+ * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * Parts of this file are based on Atheros' 2.6.15 BSP
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <asm/mach-ath79/ar71xx_regs.h>
+#include <asm/mach-ath79/ath79.h>
+#include <asm/mach-ath79/irq.h>
+#include <asm/mach-ath79/pci.h>
+#include "pci.h"
+
+static int (*ath79_pci_plat_dev_init)(struct pci_dev *dev);
+static const struct ath79_pci_irq *ath79_pci_irq_map __initdata;
+static unsigned ath79_pci_nr_irqs __initdata;
+
+static const struct ath79_pci_irq ar71xx_pci_irq_map[] __initconst = {
+ {
+ .slot = 17,
+ .pin = 1,
+ .irq = ATH79_PCI_IRQ(0),
+ }, {
+ .slot = 18,
+ .pin = 1,
+ .irq = ATH79_PCI_IRQ(1),
+ }, {
+ .slot = 19,
+ .pin = 1,
+ .irq = ATH79_PCI_IRQ(2),
+ }
+};
+
+static const struct ath79_pci_irq ar724x_pci_irq_map[] __initconst = {
+ {
+ .slot = 0,
+ .pin = 1,
+ .irq = ATH79_PCI_IRQ(0),
+ }
+};
+
+int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
+{
+ int irq = -1;
+ int i;
+
+ if (ath79_pci_nr_irqs == 0 ||
+ ath79_pci_irq_map == NULL) {
+ if (soc_is_ar71xx()) {
+ ath79_pci_irq_map = ar71xx_pci_irq_map;
+ ath79_pci_nr_irqs = ARRAY_SIZE(ar71xx_pci_irq_map);
+ } else if (soc_is_ar724x() ||
+ soc_is_ar9342() ||
+ soc_is_ar9344()) {
+ ath79_pci_irq_map = ar724x_pci_irq_map;
+ ath79_pci_nr_irqs = ARRAY_SIZE(ar724x_pci_irq_map);
+ } else {
+ pr_crit("pci %s: invalid irq map\n",
+ pci_name((struct pci_dev *) dev));
+ return irq;
+ }
+ }
+
+ for (i = 0; i < ath79_pci_nr_irqs; i++) {
+ const struct ath79_pci_irq *entry;
+
+ entry = &ath79_pci_irq_map[i];
+ if (entry->slot == slot && entry->pin == pin) {
+ irq = entry->irq;
+ break;
+ }
+ }
+
+ if (irq < 0)
+ pr_crit("pci %s: no irq found for pin %u\n",
+ pci_name((struct pci_dev *) dev), pin);
+ else
+ pr_info("pci %s: using irq %d for pin %u\n",
+ pci_name((struct pci_dev *) dev), irq, pin);
+
+ return irq;
+}
+
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ if (ath79_pci_plat_dev_init)
+ return ath79_pci_plat_dev_init(dev);
+
+ return 0;
+}
+
+void __init ath79_pci_set_irq_map(unsigned nr_irqs,
+ const struct ath79_pci_irq *map)
+{
+ ath79_pci_nr_irqs = nr_irqs;
+ ath79_pci_irq_map = map;
+}
+
+void __init ath79_pci_set_plat_dev_init(int (*func)(struct pci_dev *dev))
+{
+ ath79_pci_plat_dev_init = func;
+}
+
+int __init ath79_register_pci(void)
+{
+ if (soc_is_ar71xx())
+ return ar71xx_pcibios_init();
+
+ if (soc_is_ar724x())
+ return ar724x_pcibios_init(ATH79_CPU_IRQ_IP2);
+
+ if (soc_is_ar9342() || soc_is_ar9344()) {
+ u32 bootstrap;
+
+ bootstrap = ath79_reset_rr(AR934X_RESET_REG_BOOTSTRAP);
+ if (bootstrap & AR934X_BOOTSTRAP_PCIE_RC)
+ return ar724x_pcibios_init(ATH79_IP2_IRQ(0));
+ }
+
+ return -ENODEV;
+}
--- /dev/null
+/*
+ * Atheros AR71XX/AR724X PCI support
+ *
+ * Copyright (C) 2011 René Bolldorf <xsecute@googlemail.com>
+ * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#ifndef _ATH79_PCI_H
+#define _ATH79_PCI_H
+
+struct ath79_pci_irq {
+ u8 slot;
+ u8 pin;
+ int irq;
+};
+
+#ifdef CONFIG_PCI
+void ath79_pci_set_irq_map(unsigned nr_irqs, const struct ath79_pci_irq *map);
+void ath79_pci_set_plat_dev_init(int (*func)(struct pci_dev *dev));
+int ath79_register_pci(void);
+#else
+static inline void
+ath79_pci_set_irq_map(unsigned nr_irqs, const struct ath79_pci_irq *map) {}
+static inline void
+ath79_pci_set_plat_dev_init(int (*func)(struct pci_dev *)) {}
+static inline int ath79_register_pci(void) { return 0; }
+#endif
+
+#endif /* _ATH79_PCI_H */
/*
* Atheros AR71XX/AR724X/AR913X specific setup
*
+ * Copyright (C) 2010-2011 Jaiganesh Narayanan <jnarayanan@atheros.com>
* Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
*
- * Parts of this file are based on Atheros' 2.6.15 BSP
+ * Parts of this file are based on Atheros' 2.6.15/2.6.31 BSP
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
rev = id & AR724X_REV_ID_REVISION_MASK;
break;
- case REV_ID_MAJOR_AR9330:
- ath79_soc = ATH79_SOC_AR9330;
- chip = "9330";
- rev = id & AR933X_REV_ID_REVISION_MASK;
- break;
-
- case REV_ID_MAJOR_AR9331:
- ath79_soc = ATH79_SOC_AR9331;
- chip = "9331";
- rev = id & AR933X_REV_ID_REVISION_MASK;
- break;
-
case REV_ID_MAJOR_AR913X:
minor = id & AR913X_REV_ID_MINOR_MASK;
rev = id >> AR913X_REV_ID_REVISION_SHIFT;
}
break;
+ case REV_ID_MAJOR_AR9330:
+ ath79_soc = ATH79_SOC_AR9330;
+ chip = "9330";
+ rev = id & AR933X_REV_ID_REVISION_MASK;
+ break;
+
+ case REV_ID_MAJOR_AR9331:
+ ath79_soc = ATH79_SOC_AR9331;
+ chip = "9331";
+ rev = id & AR933X_REV_ID_REVISION_MASK;
+ break;
+
+ case REV_ID_MAJOR_AR9341:
+ ath79_soc = ATH79_SOC_AR9341;
+ chip = "9341";
+ rev = id & AR934X_REV_ID_REVISION_MASK;
+ break;
+
+ case REV_ID_MAJOR_AR9342:
+ ath79_soc = ATH79_SOC_AR9342;
+ chip = "9342";
+ rev = id & AR934X_REV_ID_REVISION_MASK;
+ break;
+
+ case REV_ID_MAJOR_AR9344:
+ ath79_soc = ATH79_SOC_AR9344;
+ chip = "9344";
+ rev = id & AR934X_REV_ID_REVISION_MASK;
+ break;
+
default:
panic("ath79: unknown SoC, id:0x%08x", id);
}
obj-$(CONFIG_BOARD_BCM963XX) += board_bcm963xx.o
-
-ccflags-y := -Werror
#include <linux/init.h>
#include <linux/console.h>
#include <linux/delay.h>
+#include <linux/export.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/serial.h>
extern void fixup_irqs(void);
-static DEFINE_SPINLOCK(smp_reserve_lock);
-
static int octeon_cpu_disable(void)
{
unsigned int cpu = smp_processor_id();
if (cpu == 0)
return -EBUSY;
- spin_lock(&smp_reserve_lock);
-
set_cpu_online(cpu, false);
cpu_clear(cpu, cpu_callin_map);
local_irq_disable();
flush_cache_all();
local_flush_tlb_all();
- spin_unlock(&smp_reserve_lock);
-
return 0;
}
lib-$(CONFIG_ARC_MEMORY) += memory.o
lib-$(CONFIG_ARC_CONSOLE) += arc_con.o
lib-$(CONFIG_ARC_PROMLIB) += promlib.o
-
-ccflags-y := -Werror
--- /dev/null
+/*
+ * based on arch/arm/include/asm/clkdev.h
+ *
+ * Copyright (C) 2008 Russell King.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Helper for the clk API to assist looking up a struct clk.
+ */
+#ifndef __ASM_CLKDEV_H
+#define __ASM_CLKDEV_H
+
+#include <linux/slab.h>
+
+#define __clk_get(clk) ({ 1; })
+#define __clk_put(clk) do { } while (0)
+
+static inline struct clk_lookup_alloc *__clkdev_alloc(size_t size)
+{
+ return kzalloc(size, GFP_KERNEL);
+}
+
+#endif
/*
* Atheros AR71XX/AR724X/AR913X SoC register definitions
*
+ * Copyright (C) 2010-2011 Jaiganesh Narayanan <jnarayanan@atheros.com>
* Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
*
- * Parts of this file are based on Atheros' 2.6.15 BSP
+ * Parts of this file are based on Atheros' 2.6.15/2.6.31 BSP
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
#define AR933X_EHCI_BASE 0x1b000000
#define AR933X_EHCI_SIZE 0x1000
+#define AR934X_WMAC_BASE (AR71XX_APB_BASE + 0x00100000)
+#define AR934X_WMAC_SIZE 0x20000
+
/*
* DDR_CTRL block
*/
#define AR933X_DDR_REG_FLUSH_USB 0x84
#define AR933X_DDR_REG_FLUSH_WMAC 0x88
+#define AR934X_DDR_REG_FLUSH_GE0 0x9c
+#define AR934X_DDR_REG_FLUSH_GE1 0xa0
+#define AR934X_DDR_REG_FLUSH_USB 0xa4
+#define AR934X_DDR_REG_FLUSH_PCIE 0xa8
+#define AR934X_DDR_REG_FLUSH_WMAC 0xac
+
/*
* PLL block
*/
#define AR933X_PLL_CLOCK_CTRL_AHB_DIV_SHIFT 15
#define AR933X_PLL_CLOCK_CTRL_AHB_DIV_MASK 0x7
+#define AR934X_PLL_CPU_CONFIG_REG 0x00
+#define AR934X_PLL_DDR_CONFIG_REG 0x04
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_REG 0x08
+
+#define AR934X_PLL_CPU_CONFIG_NFRAC_SHIFT 0
+#define AR934X_PLL_CPU_CONFIG_NFRAC_MASK 0x3f
+#define AR934X_PLL_CPU_CONFIG_NINT_SHIFT 6
+#define AR934X_PLL_CPU_CONFIG_NINT_MASK 0x3f
+#define AR934X_PLL_CPU_CONFIG_REFDIV_SHIFT 12
+#define AR934X_PLL_CPU_CONFIG_REFDIV_MASK 0x1f
+#define AR934X_PLL_CPU_CONFIG_OUTDIV_SHIFT 19
+#define AR934X_PLL_CPU_CONFIG_OUTDIV_MASK 0x3
+
+#define AR934X_PLL_DDR_CONFIG_NFRAC_SHIFT 0
+#define AR934X_PLL_DDR_CONFIG_NFRAC_MASK 0x3ff
+#define AR934X_PLL_DDR_CONFIG_NINT_SHIFT 10
+#define AR934X_PLL_DDR_CONFIG_NINT_MASK 0x3f
+#define AR934X_PLL_DDR_CONFIG_REFDIV_SHIFT 16
+#define AR934X_PLL_DDR_CONFIG_REFDIV_MASK 0x1f
+#define AR934X_PLL_DDR_CONFIG_OUTDIV_SHIFT 23
+#define AR934X_PLL_DDR_CONFIG_OUTDIV_MASK 0x7
+
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_CPU_PLL_BYPASS BIT(2)
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_DDR_PLL_BYPASS BIT(3)
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_AHB_PLL_BYPASS BIT(4)
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_CPU_POST_DIV_SHIFT 5
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_CPU_POST_DIV_MASK 0x1f
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_DDR_POST_DIV_SHIFT 10
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_DDR_POST_DIV_MASK 0x1f
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_AHB_POST_DIV_SHIFT 15
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_AHB_POST_DIV_MASK 0x1f
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_CPUCLK_FROM_CPUPLL BIT(20)
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_DDRCLK_FROM_DDRPLL BIT(21)
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_AHBCLK_FROM_DDRPLL BIT(24)
+
/*
* USB_CONFIG block
*/
#define AR933X_RESET_REG_RESET_MODULE 0x1c
#define AR933X_RESET_REG_BOOTSTRAP 0xac
+#define AR934X_RESET_REG_RESET_MODULE 0x1c
+#define AR934X_RESET_REG_BOOTSTRAP 0xb0
+#define AR934X_RESET_REG_PCIE_WMAC_INT_STATUS 0xac
+
#define MISC_INT_ETHSW BIT(12)
#define MISC_INT_TIMER4 BIT(10)
#define MISC_INT_TIMER3 BIT(9)
#define AR933X_BOOTSTRAP_REF_CLK_40 BIT(0)
+#define AR934X_BOOTSTRAP_SW_OPTION8 BIT(23)
+#define AR934X_BOOTSTRAP_SW_OPTION7 BIT(22)
+#define AR934X_BOOTSTRAP_SW_OPTION6 BIT(21)
+#define AR934X_BOOTSTRAP_SW_OPTION5 BIT(20)
+#define AR934X_BOOTSTRAP_SW_OPTION4 BIT(19)
+#define AR934X_BOOTSTRAP_SW_OPTION3 BIT(18)
+#define AR934X_BOOTSTRAP_SW_OPTION2 BIT(17)
+#define AR934X_BOOTSTRAP_SW_OPTION1 BIT(16)
+#define AR934X_BOOTSTRAP_USB_MODE_DEVICE BIT(7)
+#define AR934X_BOOTSTRAP_PCIE_RC BIT(6)
+#define AR934X_BOOTSTRAP_EJTAG_MODE BIT(5)
+#define AR934X_BOOTSTRAP_REF_CLK_40 BIT(4)
+#define AR934X_BOOTSTRAP_BOOT_FROM_SPI BIT(2)
+#define AR934X_BOOTSTRAP_SDRAM_DISABLED BIT(1)
+#define AR934X_BOOTSTRAP_DDR1 BIT(0)
+
+#define AR934X_PCIE_WMAC_INT_WMAC_MISC BIT(0)
+#define AR934X_PCIE_WMAC_INT_WMAC_TX BIT(1)
+#define AR934X_PCIE_WMAC_INT_WMAC_RXLP BIT(2)
+#define AR934X_PCIE_WMAC_INT_WMAC_RXHP BIT(3)
+#define AR934X_PCIE_WMAC_INT_PCIE_RC BIT(4)
+#define AR934X_PCIE_WMAC_INT_PCIE_RC0 BIT(5)
+#define AR934X_PCIE_WMAC_INT_PCIE_RC1 BIT(6)
+#define AR934X_PCIE_WMAC_INT_PCIE_RC2 BIT(7)
+#define AR934X_PCIE_WMAC_INT_PCIE_RC3 BIT(8)
+#define AR934X_PCIE_WMAC_INT_WMAC_ALL \
+ (AR934X_PCIE_WMAC_INT_WMAC_MISC | AR934X_PCIE_WMAC_INT_WMAC_TX | \
+ AR934X_PCIE_WMAC_INT_WMAC_RXLP | AR934X_PCIE_WMAC_INT_WMAC_RXHP)
+
+#define AR934X_PCIE_WMAC_INT_PCIE_ALL \
+ (AR934X_PCIE_WMAC_INT_PCIE_RC | AR934X_PCIE_WMAC_INT_PCIE_RC0 | \
+ AR934X_PCIE_WMAC_INT_PCIE_RC1 | AR934X_PCIE_WMAC_INT_PCIE_RC2 | \
+ AR934X_PCIE_WMAC_INT_PCIE_RC3)
+
#define REV_ID_MAJOR_MASK 0xfff0
#define REV_ID_MAJOR_AR71XX 0x00a0
#define REV_ID_MAJOR_AR913X 0x00b0
#define REV_ID_MAJOR_AR7242 0x1100
#define REV_ID_MAJOR_AR9330 0x0110
#define REV_ID_MAJOR_AR9331 0x1110
+#define REV_ID_MAJOR_AR9341 0x0120
+#define REV_ID_MAJOR_AR9342 0x1120
+#define REV_ID_MAJOR_AR9344 0x2120
#define AR71XX_REV_ID_MINOR_MASK 0x3
#define AR71XX_REV_ID_MINOR_AR7130 0x0
#define AR724X_REV_ID_REVISION_MASK 0x3
+#define AR934X_REV_ID_REVISION_MASK 0xf
+
/*
* SPI block
*/
#define AR724X_GPIO_COUNT 18
#define AR913X_GPIO_COUNT 22
#define AR933X_GPIO_COUNT 30
+#define AR934X_GPIO_COUNT 23
#endif /* __ASM_MACH_AR71XX_REGS_H */
ATH79_SOC_AR9132,
ATH79_SOC_AR9330,
ATH79_SOC_AR9331,
+ ATH79_SOC_AR9341,
+ ATH79_SOC_AR9342,
+ ATH79_SOC_AR9344,
};
extern enum ath79_soc_type ath79_soc;
ath79_soc == ATH79_SOC_AR9331);
}
+static inline int soc_is_ar9341(void)
+{
+ return (ath79_soc == ATH79_SOC_AR9341);
+}
+
+static inline int soc_is_ar9342(void)
+{
+ return (ath79_soc == ATH79_SOC_AR9342);
+}
+
+static inline int soc_is_ar9344(void)
+{
+ return (ath79_soc == ATH79_SOC_AR9344);
+}
+
+static inline int soc_is_ar934x(void)
+{
+ return soc_is_ar9341() || soc_is_ar9342() || soc_is_ar9344();
+}
+
extern void __iomem *ath79_ddr_base;
extern void __iomem *ath79_pll_base;
extern void __iomem *ath79_reset_base;
#define __ASM_MACH_ATH79_IRQ_H
#define MIPS_CPU_IRQ_BASE 0
-#define NR_IRQS 40
+#define NR_IRQS 48
#define ATH79_MISC_IRQ_BASE 8
#define ATH79_MISC_IRQ_COUNT 32
+#define ATH79_PCI_IRQ_BASE (ATH79_MISC_IRQ_BASE + ATH79_MISC_IRQ_COUNT)
+#define ATH79_PCI_IRQ_COUNT 6
+#define ATH79_PCI_IRQ(_x) (ATH79_PCI_IRQ_BASE + (_x))
+
+#define ATH79_IP2_IRQ_BASE (ATH79_PCI_IRQ_BASE + ATH79_PCI_IRQ_COUNT)
+#define ATH79_IP2_IRQ_COUNT 2
+#define ATH79_IP2_IRQ(_x) (ATH79_IP2_IRQ_BASE + (_x))
+
#define ATH79_CPU_IRQ_IP2 (MIPS_CPU_IRQ_BASE + 2)
#define ATH79_CPU_IRQ_USB (MIPS_CPU_IRQ_BASE + 3)
#define ATH79_CPU_IRQ_GE0 (MIPS_CPU_IRQ_BASE + 4)
+++ /dev/null
-/*
- * Atheros 724x PCI support
- *
- * Copyright (C) 2011 René Bolldorf <xsecute@googlemail.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#ifndef __ASM_MACH_ATH79_PCI_ATH724X_H
-#define __ASM_MACH_ATH79_PCI_ATH724X_H
-
-struct ath724x_pci_data {
- int irq;
- void *pdata;
-};
-
-void ath724x_pci_add_data(struct ath724x_pci_data *data, int size);
-
-#endif /* __ASM_MACH_ATH79_PCI_ATH724X_H */
--- /dev/null
+/*
+ * Atheros AR71XX/AR724X PCI support
+ *
+ * Copyright (C) 2011 René Bolldorf <xsecute@googlemail.com>
+ * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#ifndef __ASM_MACH_ATH79_PCI_H
+#define __ASM_MACH_ATH79_PCI_H
+
+#if defined(CONFIG_PCI) && defined(CONFIG_SOC_AR71XX)
+int ar71xx_pcibios_init(void);
+#else
+static inline int ar71xx_pcibios_init(void) { return 0; }
+#endif
+
+#if defined(CONFIG_PCI_AR724X)
+int ar724x_pcibios_init(int irq);
+#else
+static inline int ar724x_pcibios_init(int irq) { return 0; }
+#endif
+
+#endif /* __ASM_MACH_ATH79_PCI_H */
#define BCM63XX_GPIO_H
#include <linux/init.h>
+#include <bcm63xx_cpu.h>
int __init bcm63xx_gpio_init(void);
--- /dev/null
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Copyright (C) 2010 Thomas Langer <thomas.langer@lantiq.com>
+ */
+
+#ifndef _FALCON_IRQ__
+#define _FALCON_IRQ__
+
+#define INT_NUM_IRQ0 8
+#define INT_NUM_IM0_IRL0 (INT_NUM_IRQ0 + 0)
+#define INT_NUM_IM1_IRL0 (INT_NUM_IM0_IRL0 + 32)
+#define INT_NUM_IM2_IRL0 (INT_NUM_IM1_IRL0 + 32)
+#define INT_NUM_IM3_IRL0 (INT_NUM_IM2_IRL0 + 32)
+#define INT_NUM_IM4_IRL0 (INT_NUM_IM3_IRL0 + 32)
+#define INT_NUM_EXTRA_START (INT_NUM_IM4_IRL0 + 32)
+#define INT_NUM_IM_OFFSET (INT_NUM_IM1_IRL0 - INT_NUM_IM0_IRL0)
+
+#define MIPS_CPU_TIMER_IRQ 7
+
+#endif /* _FALCON_IRQ__ */
--- /dev/null
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Copyright (C) 2011 Thomas Langer <thomas.langer@lantiq.com>
+ */
+
+#ifndef __FALCON_IRQ_H
+#define __FALCON_IRQ_H
+
+#include <falcon_irq.h>
+
+#define NR_IRQS 328
+
+#include_next <irq.h>
+
+#endif
--- /dev/null
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ */
+
+#ifndef _LTQ_FALCON_H__
+#define _LTQ_FALCON_H__
+
+#ifdef CONFIG_SOC_FALCON
+
+#include <linux/pinctrl/pinctrl.h>
+#include <lantiq.h>
+
+/* Chip IDs */
+#define SOC_ID_FALCON 0x01B8
+
+/* SoC Types */
+#define SOC_TYPE_FALCON 0x01
+
+/*
+ * during early_printk no ioremap possible at this early stage
+ * lets use KSEG1 instead
+ */
+#define LTQ_ASC0_BASE_ADDR 0x1E100C00
+#define LTQ_EARLY_ASC KSEG1ADDR(LTQ_ASC0_BASE_ADDR)
+
+/* WDT */
+#define LTQ_RST_CAUSE_WDTRST 0x0002
+
+/* CHIP ID */
+#define LTQ_STATUS_BASE_ADDR 0x1E802000
+
+#define FALCON_CHIPID ((u32 *)(KSEG1 + LTQ_STATUS_BASE_ADDR + 0x0c))
+#define FALCON_CHIPTYPE ((u32 *)(KSEG1 + LTQ_STATUS_BASE_ADDR + 0x38))
+#define FALCON_CHIPCONF ((u32 *)(KSEG1 + LTQ_STATUS_BASE_ADDR + 0x40))
+
+/* SYSCTL - start/stop/restart/configure/... different parts of the Soc */
+#define SYSCTL_SYS1 0
+#define SYSCTL_SYSETH 1
+#define SYSCTL_SYSGPE 2
+
+/* BOOT_SEL - find what boot media we have */
+#define BS_FLASH 0x1
+#define BS_SPI 0x4
+
+/* global register ranges */
+extern __iomem void *ltq_ebu_membase;
+extern __iomem void *ltq_sys1_membase;
+#define ltq_ebu_w32(x, y) ltq_w32((x), ltq_ebu_membase + (y))
+#define ltq_ebu_r32(x) ltq_r32(ltq_ebu_membase + (x))
+
+#define ltq_sys1_w32(x, y) ltq_w32((x), ltq_sys1_membase + (y))
+#define ltq_sys1_r32(x) ltq_r32(ltq_sys1_membase + (x))
+#define ltq_sys1_w32_mask(clear, set, reg) \
+ ltq_sys1_w32((ltq_sys1_r32(reg) & ~(clear)) | (set), reg)
+
+/*
+ * to keep the irq code generic we need to define this to 0 as falcon
+ * has no EIU/EBU
+ */
+#define LTQ_EBU_PCC_ISTAT 0
+
+#endif /* CONFIG_SOC_FALCON */
+#endif /* _LTQ_XWAY_H__ */
--- /dev/null
+#ifndef __ASM_MIPS_MACH_LANTIQ_GPIO_H
+#define __ASM_MIPS_MACH_LANTIQ_GPIO_H
+
+static inline int gpio_to_irq(unsigned int gpio)
+{
+ return -1;
+}
+
+#define gpio_get_value __gpio_get_value
+#define gpio_set_value __gpio_set_value
+
+#define gpio_cansleep __gpio_cansleep
+
+#include <asm-generic/gpio.h>
+
+#endif
#define _LANTIQ_H__
#include <linux/irq.h>
+#include <linux/device.h>
+#include <linux/clk.h>
/* generic reg access functions */
#define ltq_r32(reg) __raw_readl(reg)
/* register access macros for EBU and CGU */
#define ltq_ebu_w32(x, y) ltq_w32((x), ltq_ebu_membase + (y))
#define ltq_ebu_r32(x) ltq_r32(ltq_ebu_membase + (x))
-#define ltq_cgu_w32(x, y) ltq_w32((x), ltq_cgu_membase + (y))
-#define ltq_cgu_r32(x) ltq_r32(ltq_cgu_membase + (x))
-
+#define ltq_ebu_w32_mask(x, y, z) \
+ ltq_w32_mask(x, y, ltq_ebu_membase + (z))
extern __iomem void *ltq_ebu_membase;
-extern __iomem void *ltq_cgu_membase;
-
-extern unsigned int ltq_get_cpu_ver(void);
-extern unsigned int ltq_get_soc_type(void);
-
-/* clock speeds */
-#define CLOCK_60M 60000000
-#define CLOCK_83M 83333333
-#define CLOCK_111M 111111111
-#define CLOCK_133M 133333333
-#define CLOCK_167M 166666667
-#define CLOCK_200M 200000000
-#define CLOCK_266M 266666666
-#define CLOCK_333M 333333333
-#define CLOCK_400M 400000000
/* spinlock all ebu i/o */
extern spinlock_t ebu_lock;
extern void ltq_mask_and_ack_irq(struct irq_data *data);
extern void ltq_enable_irq(struct irq_data *data);
+/* clock handling */
+extern int clk_activate(struct clk *clk);
+extern void clk_deactivate(struct clk *clk);
+extern struct clk *clk_get_cpu(void);
+extern struct clk *clk_get_fpi(void);
+extern struct clk *clk_get_io(void);
+
+/* find out what bootsource we have */
+extern unsigned char ltq_boot_select(void);
/* find out what caused the last cpu reset */
extern int ltq_reset_cause(void);
-#define LTQ_RST_CAUSE_WDTRST 0x20
#define IOPORT_RESOURCE_START 0x10000000
#define IOPORT_RESOURCE_END 0xffffffff
#define IOMEM_RESOURCE_START 0x10000000
#define IOMEM_RESOURCE_END 0xffffffff
-#define LTQ_FLASH_START 0x10000000
-#define LTQ_FLASH_MAX 0x04000000
#endif
#ifndef _LANTIQ_PLATFORM_H__
#define _LANTIQ_PLATFORM_H__
-#include <linux/mtd/partitions.h>
#include <linux/socket.h>
-/* struct used to pass info to the pci core */
-enum {
- PCI_CLOCK_INT = 0,
- PCI_CLOCK_EXT
-};
-
-#define PCI_EXIN0 0x0001
-#define PCI_EXIN1 0x0002
-#define PCI_EXIN2 0x0004
-#define PCI_EXIN3 0x0008
-#define PCI_EXIN4 0x0010
-#define PCI_EXIN5 0x0020
-#define PCI_EXIN_MAX 6
-
-#define PCI_GNT1 0x0040
-#define PCI_GNT2 0x0080
-#define PCI_GNT3 0x0100
-#define PCI_GNT4 0x0200
-
-#define PCI_REQ1 0x0400
-#define PCI_REQ2 0x0800
-#define PCI_REQ3 0x1000
-#define PCI_REQ4 0x2000
-#define PCI_REQ_SHIFT 10
-#define PCI_REQ_MASK 0xf
-
-struct ltq_pci_data {
- int clock;
- int gpio;
- int irq[16];
-};
-
/* struct used to pass info to network drivers */
struct ltq_eth_data {
struct sockaddr mac;
#define INT_NUM_IM4_IRL0 (INT_NUM_IRQ0 + 128)
#define INT_NUM_IM_OFFSET (INT_NUM_IM1_IRL0 - INT_NUM_IM0_IRL0)
-#define LTQ_ASC_TIR(x) (INT_NUM_IM3_IRL0 + (x * 8))
-#define LTQ_ASC_RIR(x) (INT_NUM_IM3_IRL0 + (x * 8) + 1)
-#define LTQ_ASC_EIR(x) (INT_NUM_IM3_IRL0 + (x * 8) + 2)
-
-#define LTQ_ASC_ASE_TIR INT_NUM_IM2_IRL0
-#define LTQ_ASC_ASE_RIR (INT_NUM_IM2_IRL0 + 2)
-#define LTQ_ASC_ASE_EIR (INT_NUM_IM2_IRL0 + 3)
-
-#define LTQ_SSC_TIR (INT_NUM_IM0_IRL0 + 15)
-#define LTQ_SSC_RIR (INT_NUM_IM0_IRL0 + 14)
-#define LTQ_SSC_EIR (INT_NUM_IM0_IRL0 + 16)
-
-#define LTQ_MEI_DYING_GASP_INT (INT_NUM_IM1_IRL0 + 21)
-#define LTQ_MEI_INT (INT_NUM_IM1_IRL0 + 23)
-
-#define LTQ_TIMER6_INT (INT_NUM_IM1_IRL0 + 23)
-#define LTQ_USB_INT (INT_NUM_IM1_IRL0 + 22)
-#define LTQ_USB_OC_INT (INT_NUM_IM4_IRL0 + 23)
-
-#define MIPS_CPU_TIMER_IRQ 7
-
#define LTQ_DMA_CH0_INT (INT_NUM_IM2_IRL0)
-#define LTQ_DMA_CH1_INT (INT_NUM_IM2_IRL0 + 1)
-#define LTQ_DMA_CH2_INT (INT_NUM_IM2_IRL0 + 2)
-#define LTQ_DMA_CH3_INT (INT_NUM_IM2_IRL0 + 3)
-#define LTQ_DMA_CH4_INT (INT_NUM_IM2_IRL0 + 4)
-#define LTQ_DMA_CH5_INT (INT_NUM_IM2_IRL0 + 5)
-#define LTQ_DMA_CH6_INT (INT_NUM_IM2_IRL0 + 6)
-#define LTQ_DMA_CH7_INT (INT_NUM_IM2_IRL0 + 7)
-#define LTQ_DMA_CH8_INT (INT_NUM_IM2_IRL0 + 8)
-#define LTQ_DMA_CH9_INT (INT_NUM_IM2_IRL0 + 9)
-#define LTQ_DMA_CH10_INT (INT_NUM_IM2_IRL0 + 10)
-#define LTQ_DMA_CH11_INT (INT_NUM_IM2_IRL0 + 11)
-#define LTQ_DMA_CH12_INT (INT_NUM_IM2_IRL0 + 25)
-#define LTQ_DMA_CH13_INT (INT_NUM_IM2_IRL0 + 26)
-#define LTQ_DMA_CH14_INT (INT_NUM_IM2_IRL0 + 27)
-#define LTQ_DMA_CH15_INT (INT_NUM_IM2_IRL0 + 28)
-#define LTQ_DMA_CH16_INT (INT_NUM_IM2_IRL0 + 29)
-#define LTQ_DMA_CH17_INT (INT_NUM_IM2_IRL0 + 30)
-#define LTQ_DMA_CH18_INT (INT_NUM_IM2_IRL0 + 16)
-#define LTQ_DMA_CH19_INT (INT_NUM_IM2_IRL0 + 21)
-
-#define LTQ_PPE_MBOX_INT (INT_NUM_IM2_IRL0 + 24)
-#define INT_NUM_IM4_IRL14 (INT_NUM_IM4_IRL0 + 14)
+#define MIPS_CPU_TIMER_IRQ 7
#endif
#define SOC_ID_DANUBE1 0x129
#define SOC_ID_DANUBE2 0x12B
#define SOC_ID_TWINPASS 0x12D
-#define SOC_ID_AMAZON_SE 0x152
+#define SOC_ID_AMAZON_SE_1 0x152 /* 50601 */
+#define SOC_ID_AMAZON_SE_2 0x153 /* 50600 */
#define SOC_ID_ARX188 0x16C
-#define SOC_ID_ARX168 0x16D
+#define SOC_ID_ARX168_1 0x16D
+#define SOC_ID_ARX168_2 0x16E
#define SOC_ID_ARX182 0x16F
-
-/* SoC Types */
+#define SOC_ID_GRX188 0x170
+#define SOC_ID_GRX168 0x171
+
+#define SOC_ID_VRX288 0x1C0 /* v1.1 */
+#define SOC_ID_VRX282 0x1C1 /* v1.1 */
+#define SOC_ID_VRX268 0x1C2 /* v1.1 */
+#define SOC_ID_GRX268 0x1C8 /* v1.1 */
+#define SOC_ID_GRX288 0x1C9 /* v1.1 */
+#define SOC_ID_VRX288_2 0x00B /* v1.2 */
+#define SOC_ID_VRX268_2 0x00C /* v1.2 */
+#define SOC_ID_GRX288_2 0x00D /* v1.2 */
+#define SOC_ID_GRX282_2 0x00E /* v1.2 */
+
+ /* SoC Types */
#define SOC_TYPE_DANUBE 0x01
#define SOC_TYPE_TWINPASS 0x02
#define SOC_TYPE_AR9 0x03
-#define SOC_TYPE_VR9 0x04
-#define SOC_TYPE_AMAZON_SE 0x05
+#define SOC_TYPE_VR9 0x04 /* v1.1 */
+#define SOC_TYPE_VR9_2 0x05 /* v1.2 */
+#define SOC_TYPE_AMAZON_SE 0x06
+
+/* BOOT_SEL - find what boot media we have */
+#define BS_EXT_ROM 0x0
+#define BS_FLASH 0x1
+#define BS_MII0 0x2
+#define BS_PCI 0x3
+#define BS_UART1 0x4
+#define BS_SPI 0x5
+#define BS_NAND 0x6
+#define BS_RMII0 0x7
+
+/* helpers used to access the cgu */
+#define ltq_cgu_w32(x, y) ltq_w32((x), ltq_cgu_membase + (y))
+#define ltq_cgu_r32(x) ltq_r32(ltq_cgu_membase + (x))
+extern __iomem void *ltq_cgu_membase;
-/* ASC0/1 - serial port */
-#define LTQ_ASC0_BASE_ADDR 0x1E100400
+/*
+ * during early_printk no ioremap is possible
+ * lets use KSEG1 instead
+ */
#define LTQ_ASC1_BASE_ADDR 0x1E100C00
-#define LTQ_ASC_SIZE 0x400
-
-/* RCU - reset control unit */
-#define LTQ_RCU_BASE_ADDR 0x1F203000
-#define LTQ_RCU_SIZE 0x1000
-
-/* GPTU - general purpose timer unit */
-#define LTQ_GPTU_BASE_ADDR 0x18000300
-#define LTQ_GPTU_SIZE 0x100
+#define LTQ_EARLY_ASC KSEG1ADDR(LTQ_ASC1_BASE_ADDR)
/* EBU - external bus unit */
-#define LTQ_EBU_GPIO_START 0x14000000
-#define LTQ_EBU_GPIO_SIZE 0x1000
-
-#define LTQ_EBU_BASE_ADDR 0x1E105300
-#define LTQ_EBU_SIZE 0x100
-
#define LTQ_EBU_BUSCON0 0x0060
#define LTQ_EBU_PCC_CON 0x0090
#define LTQ_EBU_PCC_IEN 0x00A4
#define LTQ_EBU_ADDRSEL1 0x0024
#define EBU_WRDIS 0x80000000
-/* CGU - clock generation unit */
-#define LTQ_CGU_BASE_ADDR 0x1F103000
-#define LTQ_CGU_SIZE 0x1000
-
-/* ICU - interrupt control unit */
-#define LTQ_ICU_BASE_ADDR 0x1F880200
-#define LTQ_ICU_SIZE 0x100
-
-/* EIU - external interrupt unit */
-#define LTQ_EIU_BASE_ADDR 0x1F101000
-#define LTQ_EIU_SIZE 0x1000
-
-/* PMU - power management unit */
-#define LTQ_PMU_BASE_ADDR 0x1F102000
-#define LTQ_PMU_SIZE 0x1000
-
-#define PMU_DMA 0x0020
-#define PMU_USB 0x8041
-#define PMU_LED 0x0800
-#define PMU_GPT 0x1000
-#define PMU_PPE 0x2000
-#define PMU_FPI 0x4000
-#define PMU_SWITCH 0x10000000
-
-/* ETOP - ethernet */
-#define LTQ_ETOP_BASE_ADDR 0x1E180000
-#define LTQ_ETOP_SIZE 0x40000
-
-/* DMA */
-#define LTQ_DMA_BASE_ADDR 0x1E104100
-#define LTQ_DMA_SIZE 0x800
-
-/* PCI */
-#define PCI_CR_BASE_ADDR 0x1E105400
-#define PCI_CR_SIZE 0x400
-
/* WDT */
-#define LTQ_WDT_BASE_ADDR 0x1F8803F0
-#define LTQ_WDT_SIZE 0x10
-
-/* STP - serial to parallel conversion unit */
-#define LTQ_STP_BASE_ADDR 0x1E100BB0
-#define LTQ_STP_SIZE 0x40
-
-/* GPIO */
-#define LTQ_GPIO0_BASE_ADDR 0x1E100B10
-#define LTQ_GPIO1_BASE_ADDR 0x1E100B40
-#define LTQ_GPIO2_BASE_ADDR 0x1E100B70
-#define LTQ_GPIO_SIZE 0x30
-
-/* SSC */
-#define LTQ_SSC_BASE_ADDR 0x1e100800
-#define LTQ_SSC_SIZE 0x100
-
-/* MEI - dsl core */
-#define LTQ_MEI_BASE_ADDR 0x1E116000
-
-/* DEU - data encryption unit */
-#define LTQ_DEU_BASE_ADDR 0x1E103100
+#define LTQ_RST_CAUSE_WDTRST 0x20
/* MPS - multi processor unit (voice) */
#define LTQ_MPS_BASE_ADDR (KSEG1 + 0x1F107000)
#define LTQ_MPS_CHIPID ((u32 *)(LTQ_MPS_BASE_ADDR + 0x0344))
/* request a non-gpio and set the PIO config */
-extern int ltq_gpio_request(unsigned int pin, unsigned int alt0,
- unsigned int alt1, unsigned int dir, const char *name);
+#define PMU_PPE BIT(13)
extern void ltq_pmu_enable(unsigned int module);
extern void ltq_pmu_disable(unsigned int module);
-static inline int ltq_is_ar9(void)
-{
- return (ltq_get_soc_type() == SOC_TYPE_AR9);
-}
-
-static inline int ltq_is_vr9(void)
-{
- return (ltq_get_soc_type() == SOC_TYPE_VR9);
-}
-
#endif /* CONFIG_SOC_TYPE_XWAY */
#endif /* _LTQ_XWAY_H__ */
#define mips_pcibios_init() do { } while (0)
#endif
-#ifdef CONFIG_KGDB
-extern void kgdb_config(void);
-#endif
-
#endif /* __ASM_MIPS_BOARDS_GENERIC_H */
#define _ASM_MODULE_H
#include <linux/list.h>
+#include <linux/elf.h>
#include <asm/uaccess.h>
struct mod_arch_specific {
+++ /dev/null
-/***********************license start***************
- * Author: Cavium Networks
- *
- * Contact: support@caviumnetworks.com
- * This file is part of the OCTEON SDK
- *
- * Copyright (c) 2003-2008 Cavium Networks
- *
- * This file is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, Version 2, as
- * published by the Free Software Foundation.
- *
- * This file is distributed in the hope that it will be useful, but
- * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
- * NONINFRINGEMENT. See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this file; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- * or visit http://www.gnu.org/licenses/.
- *
- * This file may also be available under a different license from Cavium.
- * Contact Cavium Networks for more information
- ***********************license end**************************************/
-
-#ifndef __CVMX_PCIEEP_DEFS_H__
-#define __CVMX_PCIEEP_DEFS_H__
-
-#define CVMX_PCIEEP_CFG000 \
- (0x0000000000000000ull)
-#define CVMX_PCIEEP_CFG001 \
- (0x0000000000000004ull)
-#define CVMX_PCIEEP_CFG002 \
- (0x0000000000000008ull)
-#define CVMX_PCIEEP_CFG003 \
- (0x000000000000000Cull)
-#define CVMX_PCIEEP_CFG004 \
- (0x0000000000000010ull)
-#define CVMX_PCIEEP_CFG004_MASK \
- (0x0000000080000010ull)
-#define CVMX_PCIEEP_CFG005 \
- (0x0000000000000014ull)
-#define CVMX_PCIEEP_CFG005_MASK \
- (0x0000000080000014ull)
-#define CVMX_PCIEEP_CFG006 \
- (0x0000000000000018ull)
-#define CVMX_PCIEEP_CFG006_MASK \
- (0x0000000080000018ull)
-#define CVMX_PCIEEP_CFG007 \
- (0x000000000000001Cull)
-#define CVMX_PCIEEP_CFG007_MASK \
- (0x000000008000001Cull)
-#define CVMX_PCIEEP_CFG008 \
- (0x0000000000000020ull)
-#define CVMX_PCIEEP_CFG008_MASK \
- (0x0000000080000020ull)
-#define CVMX_PCIEEP_CFG009 \
- (0x0000000000000024ull)
-#define CVMX_PCIEEP_CFG009_MASK \
- (0x0000000080000024ull)
-#define CVMX_PCIEEP_CFG010 \
- (0x0000000000000028ull)
-#define CVMX_PCIEEP_CFG011 \
- (0x000000000000002Cull)
-#define CVMX_PCIEEP_CFG012 \
- (0x0000000000000030ull)
-#define CVMX_PCIEEP_CFG012_MASK \
- (0x0000000080000030ull)
-#define CVMX_PCIEEP_CFG013 \
- (0x0000000000000034ull)
-#define CVMX_PCIEEP_CFG015 \
- (0x000000000000003Cull)
-#define CVMX_PCIEEP_CFG016 \
- (0x0000000000000040ull)
-#define CVMX_PCIEEP_CFG017 \
- (0x0000000000000044ull)
-#define CVMX_PCIEEP_CFG020 \
- (0x0000000000000050ull)
-#define CVMX_PCIEEP_CFG021 \
- (0x0000000000000054ull)
-#define CVMX_PCIEEP_CFG022 \
- (0x0000000000000058ull)
-#define CVMX_PCIEEP_CFG023 \
- (0x000000000000005Cull)
-#define CVMX_PCIEEP_CFG028 \
- (0x0000000000000070ull)
-#define CVMX_PCIEEP_CFG029 \
- (0x0000000000000074ull)
-#define CVMX_PCIEEP_CFG030 \
- (0x0000000000000078ull)
-#define CVMX_PCIEEP_CFG031 \
- (0x000000000000007Cull)
-#define CVMX_PCIEEP_CFG032 \
- (0x0000000000000080ull)
-#define CVMX_PCIEEP_CFG033 \
- (0x0000000000000084ull)
-#define CVMX_PCIEEP_CFG034 \
- (0x0000000000000088ull)
-#define CVMX_PCIEEP_CFG037 \
- (0x0000000000000094ull)
-#define CVMX_PCIEEP_CFG038 \
- (0x0000000000000098ull)
-#define CVMX_PCIEEP_CFG039 \
- (0x000000000000009Cull)
-#define CVMX_PCIEEP_CFG040 \
- (0x00000000000000A0ull)
-#define CVMX_PCIEEP_CFG041 \
- (0x00000000000000A4ull)
-#define CVMX_PCIEEP_CFG042 \
- (0x00000000000000A8ull)
-#define CVMX_PCIEEP_CFG064 \
- (0x0000000000000100ull)
-#define CVMX_PCIEEP_CFG065 \
- (0x0000000000000104ull)
-#define CVMX_PCIEEP_CFG066 \
- (0x0000000000000108ull)
-#define CVMX_PCIEEP_CFG067 \
- (0x000000000000010Cull)
-#define CVMX_PCIEEP_CFG068 \
- (0x0000000000000110ull)
-#define CVMX_PCIEEP_CFG069 \
- (0x0000000000000114ull)
-#define CVMX_PCIEEP_CFG070 \
- (0x0000000000000118ull)
-#define CVMX_PCIEEP_CFG071 \
- (0x000000000000011Cull)
-#define CVMX_PCIEEP_CFG072 \
- (0x0000000000000120ull)
-#define CVMX_PCIEEP_CFG073 \
- (0x0000000000000124ull)
-#define CVMX_PCIEEP_CFG074 \
- (0x0000000000000128ull)
-#define CVMX_PCIEEP_CFG448 \
- (0x0000000000000700ull)
-#define CVMX_PCIEEP_CFG449 \
- (0x0000000000000704ull)
-#define CVMX_PCIEEP_CFG450 \
- (0x0000000000000708ull)
-#define CVMX_PCIEEP_CFG451 \
- (0x000000000000070Cull)
-#define CVMX_PCIEEP_CFG452 \
- (0x0000000000000710ull)
-#define CVMX_PCIEEP_CFG453 \
- (0x0000000000000714ull)
-#define CVMX_PCIEEP_CFG454 \
- (0x0000000000000718ull)
-#define CVMX_PCIEEP_CFG455 \
- (0x000000000000071Cull)
-#define CVMX_PCIEEP_CFG456 \
- (0x0000000000000720ull)
-#define CVMX_PCIEEP_CFG458 \
- (0x0000000000000728ull)
-#define CVMX_PCIEEP_CFG459 \
- (0x000000000000072Cull)
-#define CVMX_PCIEEP_CFG460 \
- (0x0000000000000730ull)
-#define CVMX_PCIEEP_CFG461 \
- (0x0000000000000734ull)
-#define CVMX_PCIEEP_CFG462 \
- (0x0000000000000738ull)
-#define CVMX_PCIEEP_CFG463 \
- (0x000000000000073Cull)
-#define CVMX_PCIEEP_CFG464 \
- (0x0000000000000740ull)
-#define CVMX_PCIEEP_CFG465 \
- (0x0000000000000744ull)
-#define CVMX_PCIEEP_CFG466 \
- (0x0000000000000748ull)
-#define CVMX_PCIEEP_CFG467 \
- (0x000000000000074Cull)
-#define CVMX_PCIEEP_CFG468 \
- (0x0000000000000750ull)
-#define CVMX_PCIEEP_CFG490 \
- (0x00000000000007A8ull)
-#define CVMX_PCIEEP_CFG491 \
- (0x00000000000007ACull)
-#define CVMX_PCIEEP_CFG492 \
- (0x00000000000007B0ull)
-#define CVMX_PCIEEP_CFG516 \
- (0x0000000000000810ull)
-#define CVMX_PCIEEP_CFG517 \
- (0x0000000000000814ull)
-
-union cvmx_pcieep_cfg000 {
- uint32_t u32;
- struct cvmx_pcieep_cfg000_s {
- uint32_t devid:16;
- uint32_t vendid:16;
- } s;
- struct cvmx_pcieep_cfg000_s cn52xx;
- struct cvmx_pcieep_cfg000_s cn52xxp1;
- struct cvmx_pcieep_cfg000_s cn56xx;
- struct cvmx_pcieep_cfg000_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg001 {
- uint32_t u32;
- struct cvmx_pcieep_cfg001_s {
- uint32_t dpe:1;
- uint32_t sse:1;
- uint32_t rma:1;
- uint32_t rta:1;
- uint32_t sta:1;
- uint32_t devt:2;
- uint32_t mdpe:1;
- uint32_t fbb:1;
- uint32_t reserved_22_22:1;
- uint32_t m66:1;
- uint32_t cl:1;
- uint32_t i_stat:1;
- uint32_t reserved_11_18:8;
- uint32_t i_dis:1;
- uint32_t fbbe:1;
- uint32_t see:1;
- uint32_t ids_wcc:1;
- uint32_t per:1;
- uint32_t vps:1;
- uint32_t mwice:1;
- uint32_t scse:1;
- uint32_t me:1;
- uint32_t msae:1;
- uint32_t isae:1;
- } s;
- struct cvmx_pcieep_cfg001_s cn52xx;
- struct cvmx_pcieep_cfg001_s cn52xxp1;
- struct cvmx_pcieep_cfg001_s cn56xx;
- struct cvmx_pcieep_cfg001_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg002 {
- uint32_t u32;
- struct cvmx_pcieep_cfg002_s {
- uint32_t bcc:8;
- uint32_t sc:8;
- uint32_t pi:8;
- uint32_t rid:8;
- } s;
- struct cvmx_pcieep_cfg002_s cn52xx;
- struct cvmx_pcieep_cfg002_s cn52xxp1;
- struct cvmx_pcieep_cfg002_s cn56xx;
- struct cvmx_pcieep_cfg002_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg003 {
- uint32_t u32;
- struct cvmx_pcieep_cfg003_s {
- uint32_t bist:8;
- uint32_t mfd:1;
- uint32_t chf:7;
- uint32_t lt:8;
- uint32_t cls:8;
- } s;
- struct cvmx_pcieep_cfg003_s cn52xx;
- struct cvmx_pcieep_cfg003_s cn52xxp1;
- struct cvmx_pcieep_cfg003_s cn56xx;
- struct cvmx_pcieep_cfg003_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg004 {
- uint32_t u32;
- struct cvmx_pcieep_cfg004_s {
- uint32_t lbab:18;
- uint32_t reserved_4_13:10;
- uint32_t pf:1;
- uint32_t typ:2;
- uint32_t mspc:1;
- } s;
- struct cvmx_pcieep_cfg004_s cn52xx;
- struct cvmx_pcieep_cfg004_s cn52xxp1;
- struct cvmx_pcieep_cfg004_s cn56xx;
- struct cvmx_pcieep_cfg004_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg004_mask {
- uint32_t u32;
- struct cvmx_pcieep_cfg004_mask_s {
- uint32_t lmask:31;
- uint32_t enb:1;
- } s;
- struct cvmx_pcieep_cfg004_mask_s cn52xx;
- struct cvmx_pcieep_cfg004_mask_s cn52xxp1;
- struct cvmx_pcieep_cfg004_mask_s cn56xx;
- struct cvmx_pcieep_cfg004_mask_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg005 {
- uint32_t u32;
- struct cvmx_pcieep_cfg005_s {
- uint32_t ubab:32;
- } s;
- struct cvmx_pcieep_cfg005_s cn52xx;
- struct cvmx_pcieep_cfg005_s cn52xxp1;
- struct cvmx_pcieep_cfg005_s cn56xx;
- struct cvmx_pcieep_cfg005_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg005_mask {
- uint32_t u32;
- struct cvmx_pcieep_cfg005_mask_s {
- uint32_t umask:32;
- } s;
- struct cvmx_pcieep_cfg005_mask_s cn52xx;
- struct cvmx_pcieep_cfg005_mask_s cn52xxp1;
- struct cvmx_pcieep_cfg005_mask_s cn56xx;
- struct cvmx_pcieep_cfg005_mask_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg006 {
- uint32_t u32;
- struct cvmx_pcieep_cfg006_s {
- uint32_t lbab:6;
- uint32_t reserved_4_25:22;
- uint32_t pf:1;
- uint32_t typ:2;
- uint32_t mspc:1;
- } s;
- struct cvmx_pcieep_cfg006_s cn52xx;
- struct cvmx_pcieep_cfg006_s cn52xxp1;
- struct cvmx_pcieep_cfg006_s cn56xx;
- struct cvmx_pcieep_cfg006_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg006_mask {
- uint32_t u32;
- struct cvmx_pcieep_cfg006_mask_s {
- uint32_t lmask:31;
- uint32_t enb:1;
- } s;
- struct cvmx_pcieep_cfg006_mask_s cn52xx;
- struct cvmx_pcieep_cfg006_mask_s cn52xxp1;
- struct cvmx_pcieep_cfg006_mask_s cn56xx;
- struct cvmx_pcieep_cfg006_mask_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg007 {
- uint32_t u32;
- struct cvmx_pcieep_cfg007_s {
- uint32_t ubab:32;
- } s;
- struct cvmx_pcieep_cfg007_s cn52xx;
- struct cvmx_pcieep_cfg007_s cn52xxp1;
- struct cvmx_pcieep_cfg007_s cn56xx;
- struct cvmx_pcieep_cfg007_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg007_mask {
- uint32_t u32;
- struct cvmx_pcieep_cfg007_mask_s {
- uint32_t umask:32;
- } s;
- struct cvmx_pcieep_cfg007_mask_s cn52xx;
- struct cvmx_pcieep_cfg007_mask_s cn52xxp1;
- struct cvmx_pcieep_cfg007_mask_s cn56xx;
- struct cvmx_pcieep_cfg007_mask_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg008 {
- uint32_t u32;
- struct cvmx_pcieep_cfg008_s {
- uint32_t reserved_4_31:28;
- uint32_t pf:1;
- uint32_t typ:2;
- uint32_t mspc:1;
- } s;
- struct cvmx_pcieep_cfg008_s cn52xx;
- struct cvmx_pcieep_cfg008_s cn52xxp1;
- struct cvmx_pcieep_cfg008_s cn56xx;
- struct cvmx_pcieep_cfg008_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg008_mask {
- uint32_t u32;
- struct cvmx_pcieep_cfg008_mask_s {
- uint32_t lmask:31;
- uint32_t enb:1;
- } s;
- struct cvmx_pcieep_cfg008_mask_s cn52xx;
- struct cvmx_pcieep_cfg008_mask_s cn52xxp1;
- struct cvmx_pcieep_cfg008_mask_s cn56xx;
- struct cvmx_pcieep_cfg008_mask_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg009 {
- uint32_t u32;
- struct cvmx_pcieep_cfg009_s {
- uint32_t ubab:25;
- uint32_t reserved_0_6:7;
- } s;
- struct cvmx_pcieep_cfg009_s cn52xx;
- struct cvmx_pcieep_cfg009_s cn52xxp1;
- struct cvmx_pcieep_cfg009_s cn56xx;
- struct cvmx_pcieep_cfg009_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg009_mask {
- uint32_t u32;
- struct cvmx_pcieep_cfg009_mask_s {
- uint32_t umask:32;
- } s;
- struct cvmx_pcieep_cfg009_mask_s cn52xx;
- struct cvmx_pcieep_cfg009_mask_s cn52xxp1;
- struct cvmx_pcieep_cfg009_mask_s cn56xx;
- struct cvmx_pcieep_cfg009_mask_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg010 {
- uint32_t u32;
- struct cvmx_pcieep_cfg010_s {
- uint32_t cisp:32;
- } s;
- struct cvmx_pcieep_cfg010_s cn52xx;
- struct cvmx_pcieep_cfg010_s cn52xxp1;
- struct cvmx_pcieep_cfg010_s cn56xx;
- struct cvmx_pcieep_cfg010_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg011 {
- uint32_t u32;
- struct cvmx_pcieep_cfg011_s {
- uint32_t ssid:16;
- uint32_t ssvid:16;
- } s;
- struct cvmx_pcieep_cfg011_s cn52xx;
- struct cvmx_pcieep_cfg011_s cn52xxp1;
- struct cvmx_pcieep_cfg011_s cn56xx;
- struct cvmx_pcieep_cfg011_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg012 {
- uint32_t u32;
- struct cvmx_pcieep_cfg012_s {
- uint32_t eraddr:16;
- uint32_t reserved_1_15:15;
- uint32_t er_en:1;
- } s;
- struct cvmx_pcieep_cfg012_s cn52xx;
- struct cvmx_pcieep_cfg012_s cn52xxp1;
- struct cvmx_pcieep_cfg012_s cn56xx;
- struct cvmx_pcieep_cfg012_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg012_mask {
- uint32_t u32;
- struct cvmx_pcieep_cfg012_mask_s {
- uint32_t mask:31;
- uint32_t enb:1;
- } s;
- struct cvmx_pcieep_cfg012_mask_s cn52xx;
- struct cvmx_pcieep_cfg012_mask_s cn52xxp1;
- struct cvmx_pcieep_cfg012_mask_s cn56xx;
- struct cvmx_pcieep_cfg012_mask_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg013 {
- uint32_t u32;
- struct cvmx_pcieep_cfg013_s {
- uint32_t reserved_8_31:24;
- uint32_t cp:8;
- } s;
- struct cvmx_pcieep_cfg013_s cn52xx;
- struct cvmx_pcieep_cfg013_s cn52xxp1;
- struct cvmx_pcieep_cfg013_s cn56xx;
- struct cvmx_pcieep_cfg013_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg015 {
- uint32_t u32;
- struct cvmx_pcieep_cfg015_s {
- uint32_t ml:8;
- uint32_t mg:8;
- uint32_t inta:8;
- uint32_t il:8;
- } s;
- struct cvmx_pcieep_cfg015_s cn52xx;
- struct cvmx_pcieep_cfg015_s cn52xxp1;
- struct cvmx_pcieep_cfg015_s cn56xx;
- struct cvmx_pcieep_cfg015_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg016 {
- uint32_t u32;
- struct cvmx_pcieep_cfg016_s {
- uint32_t pmes:5;
- uint32_t d2s:1;
- uint32_t d1s:1;
- uint32_t auxc:3;
- uint32_t dsi:1;
- uint32_t reserved_20_20:1;
- uint32_t pme_clock:1;
- uint32_t pmsv:3;
- uint32_t ncp:8;
- uint32_t pmcid:8;
- } s;
- struct cvmx_pcieep_cfg016_s cn52xx;
- struct cvmx_pcieep_cfg016_s cn52xxp1;
- struct cvmx_pcieep_cfg016_s cn56xx;
- struct cvmx_pcieep_cfg016_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg017 {
- uint32_t u32;
- struct cvmx_pcieep_cfg017_s {
- uint32_t pmdia:8;
- uint32_t bpccee:1;
- uint32_t bd3h:1;
- uint32_t reserved_16_21:6;
- uint32_t pmess:1;
- uint32_t pmedsia:2;
- uint32_t pmds:4;
- uint32_t pmeens:1;
- uint32_t reserved_4_7:4;
- uint32_t nsr:1;
- uint32_t reserved_2_2:1;
- uint32_t ps:2;
- } s;
- struct cvmx_pcieep_cfg017_s cn52xx;
- struct cvmx_pcieep_cfg017_s cn52xxp1;
- struct cvmx_pcieep_cfg017_s cn56xx;
- struct cvmx_pcieep_cfg017_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg020 {
- uint32_t u32;
- struct cvmx_pcieep_cfg020_s {
- uint32_t reserved_24_31:8;
- uint32_t m64:1;
- uint32_t mme:3;
- uint32_t mmc:3;
- uint32_t msien:1;
- uint32_t ncp:8;
- uint32_t msicid:8;
- } s;
- struct cvmx_pcieep_cfg020_s cn52xx;
- struct cvmx_pcieep_cfg020_s cn52xxp1;
- struct cvmx_pcieep_cfg020_s cn56xx;
- struct cvmx_pcieep_cfg020_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg021 {
- uint32_t u32;
- struct cvmx_pcieep_cfg021_s {
- uint32_t lmsi:30;
- uint32_t reserved_0_1:2;
- } s;
- struct cvmx_pcieep_cfg021_s cn52xx;
- struct cvmx_pcieep_cfg021_s cn52xxp1;
- struct cvmx_pcieep_cfg021_s cn56xx;
- struct cvmx_pcieep_cfg021_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg022 {
- uint32_t u32;
- struct cvmx_pcieep_cfg022_s {
- uint32_t umsi:32;
- } s;
- struct cvmx_pcieep_cfg022_s cn52xx;
- struct cvmx_pcieep_cfg022_s cn52xxp1;
- struct cvmx_pcieep_cfg022_s cn56xx;
- struct cvmx_pcieep_cfg022_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg023 {
- uint32_t u32;
- struct cvmx_pcieep_cfg023_s {
- uint32_t reserved_16_31:16;
- uint32_t msimd:16;
- } s;
- struct cvmx_pcieep_cfg023_s cn52xx;
- struct cvmx_pcieep_cfg023_s cn52xxp1;
- struct cvmx_pcieep_cfg023_s cn56xx;
- struct cvmx_pcieep_cfg023_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg028 {
- uint32_t u32;
- struct cvmx_pcieep_cfg028_s {
- uint32_t reserved_30_31:2;
- uint32_t imn:5;
- uint32_t si:1;
- uint32_t dpt:4;
- uint32_t pciecv:4;
- uint32_t ncp:8;
- uint32_t pcieid:8;
- } s;
- struct cvmx_pcieep_cfg028_s cn52xx;
- struct cvmx_pcieep_cfg028_s cn52xxp1;
- struct cvmx_pcieep_cfg028_s cn56xx;
- struct cvmx_pcieep_cfg028_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg029 {
- uint32_t u32;
- struct cvmx_pcieep_cfg029_s {
- uint32_t reserved_28_31:4;
- uint32_t cspls:2;
- uint32_t csplv:8;
- uint32_t reserved_16_17:2;
- uint32_t rber:1;
- uint32_t reserved_12_14:3;
- uint32_t el1al:3;
- uint32_t el0al:3;
- uint32_t etfs:1;
- uint32_t pfs:2;
- uint32_t mpss:3;
- } s;
- struct cvmx_pcieep_cfg029_s cn52xx;
- struct cvmx_pcieep_cfg029_s cn52xxp1;
- struct cvmx_pcieep_cfg029_s cn56xx;
- struct cvmx_pcieep_cfg029_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg030 {
- uint32_t u32;
- struct cvmx_pcieep_cfg030_s {
- uint32_t reserved_22_31:10;
- uint32_t tp:1;
- uint32_t ap_d:1;
- uint32_t ur_d:1;
- uint32_t fe_d:1;
- uint32_t nfe_d:1;
- uint32_t ce_d:1;
- uint32_t reserved_15_15:1;
- uint32_t mrrs:3;
- uint32_t ns_en:1;
- uint32_t ap_en:1;
- uint32_t pf_en:1;
- uint32_t etf_en:1;
- uint32_t mps:3;
- uint32_t ro_en:1;
- uint32_t ur_en:1;
- uint32_t fe_en:1;
- uint32_t nfe_en:1;
- uint32_t ce_en:1;
- } s;
- struct cvmx_pcieep_cfg030_s cn52xx;
- struct cvmx_pcieep_cfg030_s cn52xxp1;
- struct cvmx_pcieep_cfg030_s cn56xx;
- struct cvmx_pcieep_cfg030_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg031 {
- uint32_t u32;
- struct cvmx_pcieep_cfg031_s {
- uint32_t pnum:8;
- uint32_t reserved_22_23:2;
- uint32_t lbnc:1;
- uint32_t dllarc:1;
- uint32_t sderc:1;
- uint32_t cpm:1;
- uint32_t l1el:3;
- uint32_t l0el:3;
- uint32_t aslpms:2;
- uint32_t mlw:6;
- uint32_t mls:4;
- } s;
- struct cvmx_pcieep_cfg031_s cn52xx;
- struct cvmx_pcieep_cfg031_s cn52xxp1;
- struct cvmx_pcieep_cfg031_s cn56xx;
- struct cvmx_pcieep_cfg031_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg032 {
- uint32_t u32;
- struct cvmx_pcieep_cfg032_s {
- uint32_t reserved_30_31:2;
- uint32_t dlla:1;
- uint32_t scc:1;
- uint32_t lt:1;
- uint32_t reserved_26_26:1;
- uint32_t nlw:6;
- uint32_t ls:4;
- uint32_t reserved_10_15:6;
- uint32_t hawd:1;
- uint32_t ecpm:1;
- uint32_t es:1;
- uint32_t ccc:1;
- uint32_t rl:1;
- uint32_t ld:1;
- uint32_t rcb:1;
- uint32_t reserved_2_2:1;
- uint32_t aslpc:2;
- } s;
- struct cvmx_pcieep_cfg032_s cn52xx;
- struct cvmx_pcieep_cfg032_s cn52xxp1;
- struct cvmx_pcieep_cfg032_s cn56xx;
- struct cvmx_pcieep_cfg032_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg033 {
- uint32_t u32;
- struct cvmx_pcieep_cfg033_s {
- uint32_t ps_num:13;
- uint32_t nccs:1;
- uint32_t emip:1;
- uint32_t sp_ls:2;
- uint32_t sp_lv:8;
- uint32_t hp_c:1;
- uint32_t hp_s:1;
- uint32_t pip:1;
- uint32_t aip:1;
- uint32_t mrlsp:1;
- uint32_t pcp:1;
- uint32_t abp:1;
- } s;
- struct cvmx_pcieep_cfg033_s cn52xx;
- struct cvmx_pcieep_cfg033_s cn52xxp1;
- struct cvmx_pcieep_cfg033_s cn56xx;
- struct cvmx_pcieep_cfg033_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg034 {
- uint32_t u32;
- struct cvmx_pcieep_cfg034_s {
- uint32_t reserved_25_31:7;
- uint32_t dlls_c:1;
- uint32_t emis:1;
- uint32_t pds:1;
- uint32_t mrlss:1;
- uint32_t ccint_d:1;
- uint32_t pd_c:1;
- uint32_t mrls_c:1;
- uint32_t pf_d:1;
- uint32_t abp_d:1;
- uint32_t reserved_13_15:3;
- uint32_t dlls_en:1;
- uint32_t emic:1;
- uint32_t pcc:1;
- uint32_t pic:2;
- uint32_t aic:2;
- uint32_t hpint_en:1;
- uint32_t ccint_en:1;
- uint32_t pd_en:1;
- uint32_t mrls_en:1;
- uint32_t pf_en:1;
- uint32_t abp_en:1;
- } s;
- struct cvmx_pcieep_cfg034_s cn52xx;
- struct cvmx_pcieep_cfg034_s cn52xxp1;
- struct cvmx_pcieep_cfg034_s cn56xx;
- struct cvmx_pcieep_cfg034_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg037 {
- uint32_t u32;
- struct cvmx_pcieep_cfg037_s {
- uint32_t reserved_5_31:27;
- uint32_t ctds:1;
- uint32_t ctrs:4;
- } s;
- struct cvmx_pcieep_cfg037_s cn52xx;
- struct cvmx_pcieep_cfg037_s cn52xxp1;
- struct cvmx_pcieep_cfg037_s cn56xx;
- struct cvmx_pcieep_cfg037_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg038 {
- uint32_t u32;
- struct cvmx_pcieep_cfg038_s {
- uint32_t reserved_5_31:27;
- uint32_t ctd:1;
- uint32_t ctv:4;
- } s;
- struct cvmx_pcieep_cfg038_s cn52xx;
- struct cvmx_pcieep_cfg038_s cn52xxp1;
- struct cvmx_pcieep_cfg038_s cn56xx;
- struct cvmx_pcieep_cfg038_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg039 {
- uint32_t u32;
- struct cvmx_pcieep_cfg039_s {
- uint32_t reserved_0_31:32;
- } s;
- struct cvmx_pcieep_cfg039_s cn52xx;
- struct cvmx_pcieep_cfg039_s cn52xxp1;
- struct cvmx_pcieep_cfg039_s cn56xx;
- struct cvmx_pcieep_cfg039_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg040 {
- uint32_t u32;
- struct cvmx_pcieep_cfg040_s {
- uint32_t reserved_0_31:32;
- } s;
- struct cvmx_pcieep_cfg040_s cn52xx;
- struct cvmx_pcieep_cfg040_s cn52xxp1;
- struct cvmx_pcieep_cfg040_s cn56xx;
- struct cvmx_pcieep_cfg040_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg041 {
- uint32_t u32;
- struct cvmx_pcieep_cfg041_s {
- uint32_t reserved_0_31:32;
- } s;
- struct cvmx_pcieep_cfg041_s cn52xx;
- struct cvmx_pcieep_cfg041_s cn52xxp1;
- struct cvmx_pcieep_cfg041_s cn56xx;
- struct cvmx_pcieep_cfg041_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg042 {
- uint32_t u32;
- struct cvmx_pcieep_cfg042_s {
- uint32_t reserved_0_31:32;
- } s;
- struct cvmx_pcieep_cfg042_s cn52xx;
- struct cvmx_pcieep_cfg042_s cn52xxp1;
- struct cvmx_pcieep_cfg042_s cn56xx;
- struct cvmx_pcieep_cfg042_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg064 {
- uint32_t u32;
- struct cvmx_pcieep_cfg064_s {
- uint32_t nco:12;
- uint32_t cv:4;
- uint32_t pcieec:16;
- } s;
- struct cvmx_pcieep_cfg064_s cn52xx;
- struct cvmx_pcieep_cfg064_s cn52xxp1;
- struct cvmx_pcieep_cfg064_s cn56xx;
- struct cvmx_pcieep_cfg064_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg065 {
- uint32_t u32;
- struct cvmx_pcieep_cfg065_s {
- uint32_t reserved_21_31:11;
- uint32_t ures:1;
- uint32_t ecrces:1;
- uint32_t mtlps:1;
- uint32_t ros:1;
- uint32_t ucs:1;
- uint32_t cas:1;
- uint32_t cts:1;
- uint32_t fcpes:1;
- uint32_t ptlps:1;
- uint32_t reserved_6_11:6;
- uint32_t sdes:1;
- uint32_t dlpes:1;
- uint32_t reserved_0_3:4;
- } s;
- struct cvmx_pcieep_cfg065_s cn52xx;
- struct cvmx_pcieep_cfg065_s cn52xxp1;
- struct cvmx_pcieep_cfg065_s cn56xx;
- struct cvmx_pcieep_cfg065_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg066 {
- uint32_t u32;
- struct cvmx_pcieep_cfg066_s {
- uint32_t reserved_21_31:11;
- uint32_t urem:1;
- uint32_t ecrcem:1;
- uint32_t mtlpm:1;
- uint32_t rom:1;
- uint32_t ucm:1;
- uint32_t cam:1;
- uint32_t ctm:1;
- uint32_t fcpem:1;
- uint32_t ptlpm:1;
- uint32_t reserved_6_11:6;
- uint32_t sdem:1;
- uint32_t dlpem:1;
- uint32_t reserved_0_3:4;
- } s;
- struct cvmx_pcieep_cfg066_s cn52xx;
- struct cvmx_pcieep_cfg066_s cn52xxp1;
- struct cvmx_pcieep_cfg066_s cn56xx;
- struct cvmx_pcieep_cfg066_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg067 {
- uint32_t u32;
- struct cvmx_pcieep_cfg067_s {
- uint32_t reserved_21_31:11;
- uint32_t ures:1;
- uint32_t ecrces:1;
- uint32_t mtlps:1;
- uint32_t ros:1;
- uint32_t ucs:1;
- uint32_t cas:1;
- uint32_t cts:1;
- uint32_t fcpes:1;
- uint32_t ptlps:1;
- uint32_t reserved_6_11:6;
- uint32_t sdes:1;
- uint32_t dlpes:1;
- uint32_t reserved_0_3:4;
- } s;
- struct cvmx_pcieep_cfg067_s cn52xx;
- struct cvmx_pcieep_cfg067_s cn52xxp1;
- struct cvmx_pcieep_cfg067_s cn56xx;
- struct cvmx_pcieep_cfg067_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg068 {
- uint32_t u32;
- struct cvmx_pcieep_cfg068_s {
- uint32_t reserved_14_31:18;
- uint32_t anfes:1;
- uint32_t rtts:1;
- uint32_t reserved_9_11:3;
- uint32_t rnrs:1;
- uint32_t bdllps:1;
- uint32_t btlps:1;
- uint32_t reserved_1_5:5;
- uint32_t res:1;
- } s;
- struct cvmx_pcieep_cfg068_s cn52xx;
- struct cvmx_pcieep_cfg068_s cn52xxp1;
- struct cvmx_pcieep_cfg068_s cn56xx;
- struct cvmx_pcieep_cfg068_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg069 {
- uint32_t u32;
- struct cvmx_pcieep_cfg069_s {
- uint32_t reserved_14_31:18;
- uint32_t anfem:1;
- uint32_t rttm:1;
- uint32_t reserved_9_11:3;
- uint32_t rnrm:1;
- uint32_t bdllpm:1;
- uint32_t btlpm:1;
- uint32_t reserved_1_5:5;
- uint32_t rem:1;
- } s;
- struct cvmx_pcieep_cfg069_s cn52xx;
- struct cvmx_pcieep_cfg069_s cn52xxp1;
- struct cvmx_pcieep_cfg069_s cn56xx;
- struct cvmx_pcieep_cfg069_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg070 {
- uint32_t u32;
- struct cvmx_pcieep_cfg070_s {
- uint32_t reserved_9_31:23;
- uint32_t ce:1;
- uint32_t cc:1;
- uint32_t ge:1;
- uint32_t gc:1;
- uint32_t fep:5;
- } s;
- struct cvmx_pcieep_cfg070_s cn52xx;
- struct cvmx_pcieep_cfg070_s cn52xxp1;
- struct cvmx_pcieep_cfg070_s cn56xx;
- struct cvmx_pcieep_cfg070_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg071 {
- uint32_t u32;
- struct cvmx_pcieep_cfg071_s {
- uint32_t dword1:32;
- } s;
- struct cvmx_pcieep_cfg071_s cn52xx;
- struct cvmx_pcieep_cfg071_s cn52xxp1;
- struct cvmx_pcieep_cfg071_s cn56xx;
- struct cvmx_pcieep_cfg071_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg072 {
- uint32_t u32;
- struct cvmx_pcieep_cfg072_s {
- uint32_t dword2:32;
- } s;
- struct cvmx_pcieep_cfg072_s cn52xx;
- struct cvmx_pcieep_cfg072_s cn52xxp1;
- struct cvmx_pcieep_cfg072_s cn56xx;
- struct cvmx_pcieep_cfg072_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg073 {
- uint32_t u32;
- struct cvmx_pcieep_cfg073_s {
- uint32_t dword3:32;
- } s;
- struct cvmx_pcieep_cfg073_s cn52xx;
- struct cvmx_pcieep_cfg073_s cn52xxp1;
- struct cvmx_pcieep_cfg073_s cn56xx;
- struct cvmx_pcieep_cfg073_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg074 {
- uint32_t u32;
- struct cvmx_pcieep_cfg074_s {
- uint32_t dword4:32;
- } s;
- struct cvmx_pcieep_cfg074_s cn52xx;
- struct cvmx_pcieep_cfg074_s cn52xxp1;
- struct cvmx_pcieep_cfg074_s cn56xx;
- struct cvmx_pcieep_cfg074_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg448 {
- uint32_t u32;
- struct cvmx_pcieep_cfg448_s {
- uint32_t rtl:16;
- uint32_t rtltl:16;
- } s;
- struct cvmx_pcieep_cfg448_s cn52xx;
- struct cvmx_pcieep_cfg448_s cn52xxp1;
- struct cvmx_pcieep_cfg448_s cn56xx;
- struct cvmx_pcieep_cfg448_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg449 {
- uint32_t u32;
- struct cvmx_pcieep_cfg449_s {
- uint32_t omr:32;
- } s;
- struct cvmx_pcieep_cfg449_s cn52xx;
- struct cvmx_pcieep_cfg449_s cn52xxp1;
- struct cvmx_pcieep_cfg449_s cn56xx;
- struct cvmx_pcieep_cfg449_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg450 {
- uint32_t u32;
- struct cvmx_pcieep_cfg450_s {
- uint32_t lpec:8;
- uint32_t reserved_22_23:2;
- uint32_t link_state:6;
- uint32_t force_link:1;
- uint32_t reserved_8_14:7;
- uint32_t link_num:8;
- } s;
- struct cvmx_pcieep_cfg450_s cn52xx;
- struct cvmx_pcieep_cfg450_s cn52xxp1;
- struct cvmx_pcieep_cfg450_s cn56xx;
- struct cvmx_pcieep_cfg450_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg451 {
- uint32_t u32;
- struct cvmx_pcieep_cfg451_s {
- uint32_t reserved_30_31:2;
- uint32_t l1el:3;
- uint32_t l0el:3;
- uint32_t n_fts_cc:8;
- uint32_t n_fts:8;
- uint32_t ack_freq:8;
- } s;
- struct cvmx_pcieep_cfg451_s cn52xx;
- struct cvmx_pcieep_cfg451_s cn52xxp1;
- struct cvmx_pcieep_cfg451_s cn56xx;
- struct cvmx_pcieep_cfg451_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg452 {
- uint32_t u32;
- struct cvmx_pcieep_cfg452_s {
- uint32_t reserved_26_31:6;
- uint32_t eccrc:1;
- uint32_t reserved_22_24:3;
- uint32_t lme:6;
- uint32_t reserved_8_15:8;
- uint32_t flm:1;
- uint32_t reserved_6_6:1;
- uint32_t dllle:1;
- uint32_t reserved_4_4:1;
- uint32_t ra:1;
- uint32_t le:1;
- uint32_t sd:1;
- uint32_t omr:1;
- } s;
- struct cvmx_pcieep_cfg452_s cn52xx;
- struct cvmx_pcieep_cfg452_s cn52xxp1;
- struct cvmx_pcieep_cfg452_s cn56xx;
- struct cvmx_pcieep_cfg452_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg453 {
- uint32_t u32;
- struct cvmx_pcieep_cfg453_s {
- uint32_t dlld:1;
- uint32_t reserved_26_30:5;
- uint32_t ack_nak:1;
- uint32_t fcd:1;
- uint32_t ilst:24;
- } s;
- struct cvmx_pcieep_cfg453_s cn52xx;
- struct cvmx_pcieep_cfg453_s cn52xxp1;
- struct cvmx_pcieep_cfg453_s cn56xx;
- struct cvmx_pcieep_cfg453_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg454 {
- uint32_t u32;
- struct cvmx_pcieep_cfg454_s {
- uint32_t reserved_29_31:3;
- uint32_t tmfcwt:5;
- uint32_t tmanlt:5;
- uint32_t tmrt:5;
- uint32_t reserved_11_13:3;
- uint32_t nskps:3;
- uint32_t reserved_4_7:4;
- uint32_t ntss:4;
- } s;
- struct cvmx_pcieep_cfg454_s cn52xx;
- struct cvmx_pcieep_cfg454_s cn52xxp1;
- struct cvmx_pcieep_cfg454_s cn56xx;
- struct cvmx_pcieep_cfg454_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg455 {
- uint32_t u32;
- struct cvmx_pcieep_cfg455_s {
- uint32_t m_cfg0_filt:1;
- uint32_t m_io_filt:1;
- uint32_t msg_ctrl:1;
- uint32_t m_cpl_ecrc_filt:1;
- uint32_t m_ecrc_filt:1;
- uint32_t m_cpl_len_err:1;
- uint32_t m_cpl_attr_err:1;
- uint32_t m_cpl_tc_err:1;
- uint32_t m_cpl_fun_err:1;
- uint32_t m_cpl_rid_err:1;
- uint32_t m_cpl_tag_err:1;
- uint32_t m_lk_filt:1;
- uint32_t m_cfg1_filt:1;
- uint32_t m_bar_match:1;
- uint32_t m_pois_filt:1;
- uint32_t m_fun:1;
- uint32_t dfcwt:1;
- uint32_t reserved_11_14:4;
- uint32_t skpiv:11;
- } s;
- struct cvmx_pcieep_cfg455_s cn52xx;
- struct cvmx_pcieep_cfg455_s cn52xxp1;
- struct cvmx_pcieep_cfg455_s cn56xx;
- struct cvmx_pcieep_cfg455_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg456 {
- uint32_t u32;
- struct cvmx_pcieep_cfg456_s {
- uint32_t reserved_2_31:30;
- uint32_t m_vend1_drp:1;
- uint32_t m_vend0_drp:1;
- } s;
- struct cvmx_pcieep_cfg456_s cn52xx;
- struct cvmx_pcieep_cfg456_s cn52xxp1;
- struct cvmx_pcieep_cfg456_s cn56xx;
- struct cvmx_pcieep_cfg456_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg458 {
- uint32_t u32;
- struct cvmx_pcieep_cfg458_s {
- uint32_t dbg_info_l32:32;
- } s;
- struct cvmx_pcieep_cfg458_s cn52xx;
- struct cvmx_pcieep_cfg458_s cn52xxp1;
- struct cvmx_pcieep_cfg458_s cn56xx;
- struct cvmx_pcieep_cfg458_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg459 {
- uint32_t u32;
- struct cvmx_pcieep_cfg459_s {
- uint32_t dbg_info_u32:32;
- } s;
- struct cvmx_pcieep_cfg459_s cn52xx;
- struct cvmx_pcieep_cfg459_s cn52xxp1;
- struct cvmx_pcieep_cfg459_s cn56xx;
- struct cvmx_pcieep_cfg459_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg460 {
- uint32_t u32;
- struct cvmx_pcieep_cfg460_s {
- uint32_t reserved_20_31:12;
- uint32_t tphfcc:8;
- uint32_t tpdfcc:12;
- } s;
- struct cvmx_pcieep_cfg460_s cn52xx;
- struct cvmx_pcieep_cfg460_s cn52xxp1;
- struct cvmx_pcieep_cfg460_s cn56xx;
- struct cvmx_pcieep_cfg460_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg461 {
- uint32_t u32;
- struct cvmx_pcieep_cfg461_s {
- uint32_t reserved_20_31:12;
- uint32_t tchfcc:8;
- uint32_t tcdfcc:12;
- } s;
- struct cvmx_pcieep_cfg461_s cn52xx;
- struct cvmx_pcieep_cfg461_s cn52xxp1;
- struct cvmx_pcieep_cfg461_s cn56xx;
- struct cvmx_pcieep_cfg461_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg462 {
- uint32_t u32;
- struct cvmx_pcieep_cfg462_s {
- uint32_t reserved_20_31:12;
- uint32_t tchfcc:8;
- uint32_t tcdfcc:12;
- } s;
- struct cvmx_pcieep_cfg462_s cn52xx;
- struct cvmx_pcieep_cfg462_s cn52xxp1;
- struct cvmx_pcieep_cfg462_s cn56xx;
- struct cvmx_pcieep_cfg462_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg463 {
- uint32_t u32;
- struct cvmx_pcieep_cfg463_s {
- uint32_t reserved_3_31:29;
- uint32_t rqne:1;
- uint32_t trbne:1;
- uint32_t rtlpfccnr:1;
- } s;
- struct cvmx_pcieep_cfg463_s cn52xx;
- struct cvmx_pcieep_cfg463_s cn52xxp1;
- struct cvmx_pcieep_cfg463_s cn56xx;
- struct cvmx_pcieep_cfg463_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg464 {
- uint32_t u32;
- struct cvmx_pcieep_cfg464_s {
- uint32_t wrr_vc3:8;
- uint32_t wrr_vc2:8;
- uint32_t wrr_vc1:8;
- uint32_t wrr_vc0:8;
- } s;
- struct cvmx_pcieep_cfg464_s cn52xx;
- struct cvmx_pcieep_cfg464_s cn52xxp1;
- struct cvmx_pcieep_cfg464_s cn56xx;
- struct cvmx_pcieep_cfg464_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg465 {
- uint32_t u32;
- struct cvmx_pcieep_cfg465_s {
- uint32_t wrr_vc7:8;
- uint32_t wrr_vc6:8;
- uint32_t wrr_vc5:8;
- uint32_t wrr_vc4:8;
- } s;
- struct cvmx_pcieep_cfg465_s cn52xx;
- struct cvmx_pcieep_cfg465_s cn52xxp1;
- struct cvmx_pcieep_cfg465_s cn56xx;
- struct cvmx_pcieep_cfg465_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg466 {
- uint32_t u32;
- struct cvmx_pcieep_cfg466_s {
- uint32_t rx_queue_order:1;
- uint32_t type_ordering:1;
- uint32_t reserved_24_29:6;
- uint32_t queue_mode:3;
- uint32_t reserved_20_20:1;
- uint32_t header_credits:8;
- uint32_t data_credits:12;
- } s;
- struct cvmx_pcieep_cfg466_s cn52xx;
- struct cvmx_pcieep_cfg466_s cn52xxp1;
- struct cvmx_pcieep_cfg466_s cn56xx;
- struct cvmx_pcieep_cfg466_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg467 {
- uint32_t u32;
- struct cvmx_pcieep_cfg467_s {
- uint32_t reserved_24_31:8;
- uint32_t queue_mode:3;
- uint32_t reserved_20_20:1;
- uint32_t header_credits:8;
- uint32_t data_credits:12;
- } s;
- struct cvmx_pcieep_cfg467_s cn52xx;
- struct cvmx_pcieep_cfg467_s cn52xxp1;
- struct cvmx_pcieep_cfg467_s cn56xx;
- struct cvmx_pcieep_cfg467_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg468 {
- uint32_t u32;
- struct cvmx_pcieep_cfg468_s {
- uint32_t reserved_24_31:8;
- uint32_t queue_mode:3;
- uint32_t reserved_20_20:1;
- uint32_t header_credits:8;
- uint32_t data_credits:12;
- } s;
- struct cvmx_pcieep_cfg468_s cn52xx;
- struct cvmx_pcieep_cfg468_s cn52xxp1;
- struct cvmx_pcieep_cfg468_s cn56xx;
- struct cvmx_pcieep_cfg468_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg490 {
- uint32_t u32;
- struct cvmx_pcieep_cfg490_s {
- uint32_t reserved_26_31:6;
- uint32_t header_depth:10;
- uint32_t reserved_14_15:2;
- uint32_t data_depth:14;
- } s;
- struct cvmx_pcieep_cfg490_s cn52xx;
- struct cvmx_pcieep_cfg490_s cn52xxp1;
- struct cvmx_pcieep_cfg490_s cn56xx;
- struct cvmx_pcieep_cfg490_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg491 {
- uint32_t u32;
- struct cvmx_pcieep_cfg491_s {
- uint32_t reserved_26_31:6;
- uint32_t header_depth:10;
- uint32_t reserved_14_15:2;
- uint32_t data_depth:14;
- } s;
- struct cvmx_pcieep_cfg491_s cn52xx;
- struct cvmx_pcieep_cfg491_s cn52xxp1;
- struct cvmx_pcieep_cfg491_s cn56xx;
- struct cvmx_pcieep_cfg491_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg492 {
- uint32_t u32;
- struct cvmx_pcieep_cfg492_s {
- uint32_t reserved_26_31:6;
- uint32_t header_depth:10;
- uint32_t reserved_14_15:2;
- uint32_t data_depth:14;
- } s;
- struct cvmx_pcieep_cfg492_s cn52xx;
- struct cvmx_pcieep_cfg492_s cn52xxp1;
- struct cvmx_pcieep_cfg492_s cn56xx;
- struct cvmx_pcieep_cfg492_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg516 {
- uint32_t u32;
- struct cvmx_pcieep_cfg516_s {
- uint32_t phy_stat:32;
- } s;
- struct cvmx_pcieep_cfg516_s cn52xx;
- struct cvmx_pcieep_cfg516_s cn52xxp1;
- struct cvmx_pcieep_cfg516_s cn56xx;
- struct cvmx_pcieep_cfg516_s cn56xxp1;
-};
-
-union cvmx_pcieep_cfg517 {
- uint32_t u32;
- struct cvmx_pcieep_cfg517_s {
- uint32_t phy_ctrl:32;
- } s;
- struct cvmx_pcieep_cfg517_s cn52xx;
- struct cvmx_pcieep_cfg517_s cn52xxp1;
- struct cvmx_pcieep_cfg517_s cn56xx;
- struct cvmx_pcieep_cfg517_s cn56xxp1;
-};
-
-#endif
*/
#include <linux/ioport.h>
+#include <linux/of.h>
/*
* Each pci channel is a top-level PCI bus seem by CPU. A machine with
struct pci_controller {
struct pci_controller *next;
struct pci_bus *bus;
+ struct device_node *of_node;
struct pci_ops *pci_ops;
struct resource *mem_resource;
extern char * (*pcibios_plat_setup)(char *str);
+/* this function parses memory ranges from a device node */
+extern void __devinit pci_load_of_ranges(struct pci_controller *hose,
+ struct device_node *node);
+
#endif /* _ASM_PCI_H */
* assume GCC is being used.
*/
-#if (_MIPS_SZLONG == 64)
-typedef unsigned int __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
-#endif
-
typedef long __kernel_daddr_t;
#define __kernel_daddr_t __kernel_daddr_t
#define __ASM_PROM_H
#ifdef CONFIG_OF
+#include <linux/bug.h>
+#include <linux/io.h>
+#include <linux/types.h>
#include <asm/bootinfo.h>
extern int early_init_dt_scan_memory_arch(unsigned long node,
extern void free_mem_mach(unsigned long addr, unsigned long size);
extern void device_tree_init(void);
+
+static inline unsigned long pci_address_to_pio(phys_addr_t address)
+{
+ /*
+ * The ioport address can be directly used by inX() / outX()
+ */
+ BUG_ON(address > IO_SPACE_LIMIT);
+
+ return (unsigned long) address;
+}
+#define pci_address_to_pio pci_address_to_pio
+
+struct boot_param_header;
+
+extern void __dt_setup_arch(struct boot_param_header *bph);
+
+#define dt_setup_arch(sym) \
+({ \
+ extern struct boot_param_header __dtb_##sym##_begin; \
+ \
+ __dt_setup_arch(&__dtb_##sym##_begin); \
+})
+
#else /* CONFIG_OF */
static inline void device_tree_init(void) { }
#endif /* CONFIG_OF */
extern void *set_except_vector(int n, void *addr);
extern unsigned long ebase;
-extern void per_cpu_trap_init(void);
+extern void per_cpu_trap_init(bool);
+extern void cpu_cache_init(void);
#endif /* __KERNEL__ */
* SECTION_SIZE_BITS 2^N: how big each section will be
* MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space
*/
-#define SECTION_SIZE_BITS 28
+#if defined(CONFIG_HUGETLB_PAGE) && defined(CONFIG_PAGE_SIZE_64KB)
+# define SECTION_SIZE_BITS 29
+#else
+# define SECTION_SIZE_BITS 28
+#endif
#define MAX_PHYSMEM_BITS 35
#endif /* CONFIG_SPARSEMEM */
long st_pad1[3]; /* Reserved for network id */
ino_t st_ino;
mode_t st_mode;
- nlink_t st_nlink;
+ __u32 st_nlink;
uid_t st_uid;
gid_t st_gid;
unsigned st_rdev;
unsigned long long st_ino;
mode_t st_mode;
- nlink_t st_nlink;
+ __u32 st_nlink;
uid_t st_uid;
gid_t st_gid;
unsigned long st_ino;
mode_t st_mode;
- nlink_t st_nlink;
+ __u32 st_nlink;
uid_t st_uid;
gid_t st_gid;
};
#ifdef __KERNEL__
-#include <linux/module.h>
+#include <asm/uaccess.h>
/*
* intr=^C quit=^\ erase=del kill=^U
extern void (*board_ejtag_handler_setup)(void);
extern void (*board_bind_eic_interrupt)(int irq, int regset);
extern void (*board_ebase_setup)(void);
+extern void (*board_cache_error_setup)(void);
extern int register_nmi_notifier(struct notifier_block *nb);
#include <linux/types.h>
#ifdef CONFIG_EXPORT_UASM
-#include <linux/module.h>
+#include <linux/export.h>
#define __uasminit
#define __uasminitdata
#define UASM_EXPORT_SYMBOL(sym) EXPORT_SYMBOL(sym)
# PM support
obj-$(CONFIG_PM) += pm.o
-
-ccflags-y := -Werror -Wall
__cpu_name[cpu] = "R2000";
c->isa_level = MIPS_CPU_ISA_I;
c->options = MIPS_CPU_TLB | MIPS_CPU_3K_CACHE |
- MIPS_CPU_NOFPUEX;
+ MIPS_CPU_NOFPUEX;
if (__cpu_has_fpu())
c->options |= MIPS_CPU_FPU;
c->tlbsize = 64;
}
c->isa_level = MIPS_CPU_ISA_I;
c->options = MIPS_CPU_TLB | MIPS_CPU_3K_CACHE |
- MIPS_CPU_NOFPUEX;
+ MIPS_CPU_NOFPUEX;
if (__cpu_has_fpu())
c->options |= MIPS_CPU_FPU;
c->tlbsize = 64;
c->isa_level = MIPS_CPU_ISA_III;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
- MIPS_CPU_WATCH | MIPS_CPU_VCE |
- MIPS_CPU_LLSC;
+ MIPS_CPU_WATCH | MIPS_CPU_VCE |
+ MIPS_CPU_LLSC;
c->tlbsize = 48;
break;
case PRID_IMP_VR41XX:
__cpu_name[cpu] = "R4300";
c->isa_level = MIPS_CPU_ISA_III;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
- MIPS_CPU_LLSC;
+ MIPS_CPU_LLSC;
c->tlbsize = 32;
break;
case PRID_IMP_R4600:
c->tlbsize = 48;
break;
#if 0
- case PRID_IMP_R4650:
+ case PRID_IMP_R4650:
/*
* This processor doesn't have an MMU, so it's not
* "real easy" to run Linux on it. It is left purely
*/
c->cputype = CPU_R4650;
__cpu_name[cpu] = "R4650";
- c->isa_level = MIPS_CPU_ISA_III;
+ c->isa_level = MIPS_CPU_ISA_III;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_LLSC;
- c->tlbsize = 48;
+ c->tlbsize = 48;
break;
#endif
case PRID_IMP_TX39:
__cpu_name[cpu] = "R4700";
c->isa_level = MIPS_CPU_ISA_III;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
- MIPS_CPU_LLSC;
+ MIPS_CPU_LLSC;
c->tlbsize = 48;
break;
case PRID_IMP_TX49:
__cpu_name[cpu] = "R5000";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
- MIPS_CPU_LLSC;
+ MIPS_CPU_LLSC;
c->tlbsize = 48;
break;
case PRID_IMP_R5432:
__cpu_name[cpu] = "R5432";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
- MIPS_CPU_WATCH | MIPS_CPU_LLSC;
+ MIPS_CPU_WATCH | MIPS_CPU_LLSC;
c->tlbsize = 48;
break;
case PRID_IMP_R5500:
__cpu_name[cpu] = "R5500";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
- MIPS_CPU_WATCH | MIPS_CPU_LLSC;
+ MIPS_CPU_WATCH | MIPS_CPU_LLSC;
c->tlbsize = 48;
break;
case PRID_IMP_NEVADA:
__cpu_name[cpu] = "Nevada";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
- MIPS_CPU_DIVEC | MIPS_CPU_LLSC;
+ MIPS_CPU_DIVEC | MIPS_CPU_LLSC;
c->tlbsize = 48;
break;
case PRID_IMP_R6000:
__cpu_name[cpu] = "R6000";
c->isa_level = MIPS_CPU_ISA_II;
c->options = MIPS_CPU_TLB | MIPS_CPU_FPU |
- MIPS_CPU_LLSC;
+ MIPS_CPU_LLSC;
c->tlbsize = 32;
break;
case PRID_IMP_R6000A:
__cpu_name[cpu] = "R6000A";
c->isa_level = MIPS_CPU_ISA_II;
c->options = MIPS_CPU_TLB | MIPS_CPU_FPU |
- MIPS_CPU_LLSC;
+ MIPS_CPU_LLSC;
c->tlbsize = 32;
break;
case PRID_IMP_RM7000:
__cpu_name[cpu] = "RM7000";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
- MIPS_CPU_LLSC;
+ MIPS_CPU_LLSC;
/*
* Undocumented RM7000: Bit 29 in the info register of
* the RM7000 v2.0 indicates if the TLB has 48 or 64
__cpu_name[cpu] = "RM9000";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
- MIPS_CPU_LLSC;
+ MIPS_CPU_LLSC;
/*
* Bit 29 in the info register of the RM9000
* indicates if the TLB has 48 or 64 entries.
__cpu_name[cpu] = "RM8000";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = MIPS_CPU_TLB | MIPS_CPU_4KEX |
- MIPS_CPU_FPU | MIPS_CPU_32FPR |
- MIPS_CPU_LLSC;
+ MIPS_CPU_FPU | MIPS_CPU_32FPR |
+ MIPS_CPU_LLSC;
c->tlbsize = 384; /* has weird TLB: 3-way x 128 */
break;
case PRID_IMP_R10000:
__cpu_name[cpu] = "R10000";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX |
- MIPS_CPU_FPU | MIPS_CPU_32FPR |
+ MIPS_CPU_FPU | MIPS_CPU_32FPR |
MIPS_CPU_COUNTER | MIPS_CPU_WATCH |
- MIPS_CPU_LLSC;
+ MIPS_CPU_LLSC;
c->tlbsize = 64;
break;
case PRID_IMP_R12000:
__cpu_name[cpu] = "R12000";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX |
- MIPS_CPU_FPU | MIPS_CPU_32FPR |
+ MIPS_CPU_FPU | MIPS_CPU_32FPR |
MIPS_CPU_COUNTER | MIPS_CPU_WATCH |
- MIPS_CPU_LLSC;
+ MIPS_CPU_LLSC;
c->tlbsize = 64;
break;
case PRID_IMP_R14000:
__cpu_name[cpu] = "R14000";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX |
- MIPS_CPU_FPU | MIPS_CPU_32FPR |
+ MIPS_CPU_FPU | MIPS_CPU_32FPR |
MIPS_CPU_COUNTER | MIPS_CPU_WATCH |
- MIPS_CPU_LLSC;
+ MIPS_CPU_LLSC;
c->tlbsize = 64;
break;
case PRID_IMP_LOONGSON2:
if (config3 & MIPS_CONF3_VEIC)
c->options |= MIPS_CPU_VEIC;
if (config3 & MIPS_CONF3_MT)
- c->ases |= MIPS_ASE_MIPSMT;
+ c->ases |= MIPS_ASE_MIPSMT;
if (config3 & MIPS_CONF3_ULRI)
c->options |= MIPS_CPU_ULRI;
/* MIPS32 or MIPS64 compliant CPU. */
c->options = MIPS_CPU_4KEX | MIPS_CPU_4K_CACHE | MIPS_CPU_COUNTER |
- MIPS_CPU_DIVEC | MIPS_CPU_LLSC | MIPS_CPU_MCHECK;
+ MIPS_CPU_DIVEC | MIPS_CPU_LLSC | MIPS_CPU_MCHECK;
c->scache.flags = MIPS_CACHE_NOT_PRESENT;
irq = MSC01E_INT_BASE + MSC01E_INT_PERFCTR;
} else {
#endif
- if (cp0_perfcount_irq >= 0)
+ if ((cp0_perfcount_irq >= 0) &&
+ (cp0_compare_irq != cp0_perfcount_irq))
irq = MIPS_CPU_IRQ_BASE + cp0_perfcount_irq;
else
irq = -1;
seq_printf(m, "processor\t\t: %ld\n", n);
sprintf(fmt, "cpu model\t\t: %%s V%%d.%%d%s\n",
- cpu_data[n].options & MIPS_CPU_FPU ? " FPU V%d.%d" : "");
+ cpu_data[n].options & MIPS_CPU_FPU ? " FPU V%d.%d" : "");
seq_printf(m, fmt, __cpu_name[n],
- (version >> 4) & 0x0f, version & 0x0f,
- (fp_vers >> 4) & 0x0f, fp_vers & 0x0f);
+ (version >> 4) & 0x0f, version & 0x0f,
+ (fp_vers >> 4) & 0x0f, fp_vers & 0x0f);
seq_printf(m, "BogoMIPS\t\t: %u.%02u\n",
- cpu_data[n].udelay_val / (500000/HZ),
- (cpu_data[n].udelay_val / (5000/HZ)) % 100);
+ cpu_data[n].udelay_val / (500000/HZ),
+ (cpu_data[n].udelay_val / (5000/HZ)) % 100);
seq_printf(m, "wait instruction\t: %s\n", cpu_wait ? "yes" : "no");
seq_printf(m, "microsecond timers\t: %s\n",
- cpu_has_counter ? "yes" : "no");
+ cpu_has_counter ? "yes" : "no");
seq_printf(m, "tlb_entries\t\t: %d\n", cpu_data[n].tlbsize);
seq_printf(m, "extra interrupt vector\t: %s\n",
- cpu_has_divec ? "yes" : "no");
+ cpu_has_divec ? "yes" : "no");
seq_printf(m, "hardware watchpoint\t: %s",
- cpu_has_watch ? "yes, " : "no\n");
+ cpu_has_watch ? "yes, " : "no\n");
if (cpu_has_watch) {
seq_printf(m, "count: %d, address/irw mask: [",
- cpu_data[n].watch_reg_count);
+ cpu_data[n].watch_reg_count);
for (i = 0; i < cpu_data[n].watch_reg_count; i++)
seq_printf(m, "%s0x%04x", i ? ", " : "" ,
- cpu_data[n].watch_reg_masks[i]);
+ cpu_data[n].watch_reg_masks[i]);
seq_printf(m, "]\n");
}
seq_printf(m, "ASEs implemented\t:%s%s%s%s%s%s\n",
cpu_has_mipsmt ? " mt" : ""
);
seq_printf(m, "shadow register sets\t: %d\n",
- cpu_data[n].srsets);
+ cpu_data[n].srsets);
seq_printf(m, "kscratch registers\t: %d\n",
- hweight8(cpu_data[n].kscratch_mask));
+ hweight8(cpu_data[n].kscratch_mask));
seq_printf(m, "core\t\t\t: %d\n", cpu_data[n].core);
sprintf(fmt, "VCE%%c exceptions\t\t: %s\n",
- cpu_has_vce ? "%u" : "not available");
+ cpu_has_vce ? "%u" : "not available");
seq_printf(m, fmt, 'D', vced_count);
seq_printf(m, fmt, 'I', vcei_count);
seq_printf(m, "\n");
/* free the space reserved for the dt blob */
free_mem_mach(base, size);
}
+
+void __init __dt_setup_arch(struct boot_param_header *bph)
+{
+ if (be32_to_cpu(bph->magic) != OF_DT_HEADER) {
+ pr_err("DTB has bad magic, ignoring builtin OF DTB\n");
+
+ return;
+ }
+
+ initial_boot_params = bph;
+
+ early_init_devtree(initial_boot_params);
+}
resource_init();
plat_smp_setup();
+
+ cpu_cache_init();
}
unsigned long kernelsp[NR_CPUS];
# define DEBUGP(fmt, args...)
#endif
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
/*
* Determine which stack to use..
*/
if (__copy_from_user(&blocked, &frame->sf_mask, sizeof(blocked)))
goto badframe;
- sigdelsetmask(&blocked, ~_BLOCKABLE);
set_current_blocked(&blocked);
sig = restore_sigcontext(®s, &frame->sf_sc);
if (__copy_from_user(&set, &frame->rs_uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
sig = restore_sigcontext(®s, &frame->rs_uc.uc_mcontext);
.restart = __NR_restart_syscall
};
-static int handle_signal(unsigned long sig, siginfo_t *info,
- struct k_sigaction *ka, sigset_t *oldset, struct pt_regs *regs)
+static void handle_signal(unsigned long sig, siginfo_t *info,
+ struct k_sigaction *ka, struct pt_regs *regs)
{
+ sigset_t *oldset = sigmask_to_save();
int ret;
struct mips_abi *abi = current->thread.abi;
void *vdso = current->mm->context.vdso;
ka, regs, sig, oldset);
if (ret)
- return ret;
-
- block_sigmask(ka, sig);
+ return;
- return ret;
+ signal_delivered(sig, info, ka, regs, 0);
}
static void do_signal(struct pt_regs *regs)
{
struct k_sigaction ka;
- sigset_t *oldset;
siginfo_t info;
int signr;
if (!user_mode(regs))
return;
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
/* Whee! Actually deliver the signal. */
- if (handle_signal(signr, &info, &ka, oldset, regs) == 0) {
- /*
- * A signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag.
- */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- }
-
+ handle_signal(signr, &info, &ka, regs);
return;
}
* If there's no signal to deliver, we just put the saved sigmask
* back
*/
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
+ restore_saved_sigmask();
}
/*
local_irq_enable();
/* deal with pending signal delivery */
- if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
+ if (thread_info_flags & _TIF_SIGPENDING)
do_signal(regs);
if (thread_info_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
if (__copy_conv_sigset_from_user(&blocked, &frame->sf_mask))
goto badframe;
- sigdelsetmask(&blocked, ~_BLOCKABLE);
set_current_blocked(&blocked);
sig = restore_sigcontext32(®s, &frame->sf_sc);
if (__copy_conv_sigset_from_user(&set, &frame->rs_uc.uc_sigmask))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
sig = restore_sigcontext32(®s, &frame->rs_uc.uc_mcontext);
if (__copy_conv_sigset_from_user(&set, &frame->rs_uc.uc_sigmask))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
sig = restore_sigcontext(®s, &frame->rs_uc.uc_mcontext);
#endif /* CONFIG_MIPS_MT_SMTC */
cpu_probe();
cpu_report();
- per_cpu_trap_init();
+ per_cpu_trap_init(false);
mips_clockevent_init();
mp_ops->init_secondary();
#include <linux/compiler.h>
#include <linux/init.h>
#include <linux/kernel.h>
+#include <linux/module.h>
#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/smp.h>
void (*board_ejtag_handler_setup)(void);
void (*board_bind_eic_interrupt)(int irq, int regset);
void (*board_ebase_setup)(void);
-
+void __cpuinitdata(*board_cache_error_setup)(void);
static void show_raw_backtrace(unsigned long reg29)
{
return set_vi_srs_handler(n, addr, 0);
}
-extern void cpu_cache_init(void);
extern void tlb_init(void);
extern void flush_tlb_handlers(void);
}
__setup("noulri", ulri_disable);
-void __cpuinit per_cpu_trap_init(void)
+void __cpuinit per_cpu_trap_init(bool is_boot_cpu)
{
unsigned int cpu = smp_processor_id();
unsigned int status_set = ST0_CU0;
#ifdef CONFIG_MIPS_MT_SMTC
if (bootTC) {
#endif /* CONFIG_MIPS_MT_SMTC */
- cpu_cache_init();
+ /* Boot CPU's cache setup in setup_arch(). */
+ if (!is_boot_cpu)
+ cpu_cache_init();
tlb_init();
#ifdef CONFIG_MIPS_MT_SMTC
} else if (!secondaryTC) {
}
/* Install CPU exception handler */
-void __init set_handler(unsigned long offset, void *addr, unsigned long size)
+void __cpuinit set_handler(unsigned long offset, void *addr, unsigned long size)
{
memcpy((void *)(ebase + offset), addr, size);
local_flush_icache_range(ebase + offset, ebase + offset + size);
if (board_ebase_setup)
board_ebase_setup();
- per_cpu_trap_init();
+ per_cpu_trap_init(true);
/*
* Copy the generic exception handlers to their final destination.
set_except_vector(26, handle_dsp);
+ if (board_cache_error_setup)
+ board_cache_error_setup();
+
if (cpu_has_vce)
/* Special exception: R4[04]00 uses also the divec space. */
memcpy((void *)(ebase + 0x180), &except_vec3_r4000, 0x100);
bool "XWAY"
select SOC_TYPE_XWAY
select HW_HAS_PCI
+
+config SOC_FALCON
+ bool "FALCON"
+
+endchoice
+
+choice
+ prompt "Devicetree"
+
+config DT_EASY50712
+ bool "Easy50712"
+ depends on SOC_XWAY
endchoice
-source "arch/mips/lantiq/xway/Kconfig"
+config PCI_LANTIQ
+ bool "PCI Support"
+ depends on SOC_XWAY && PCI
endif
# under the terms of the GNU General Public License version 2 as published
# by the Free Software Foundation.
-obj-y := irq.o setup.o clk.o prom.o devices.o
+obj-y := irq.o clk.o prom.o
+
+obj-y += dts/
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
obj-$(CONFIG_SOC_TYPE_XWAY) += xway/
+obj-$(CONFIG_SOC_FALCON) += falcon/
cflags-$(CONFIG_LANTIQ) += -I$(srctree)/arch/mips/include/asm/mach-lantiq
load-$(CONFIG_LANTIQ) = 0xffffffff80002000
cflags-$(CONFIG_SOC_TYPE_XWAY) += -I$(srctree)/arch/mips/include/asm/mach-lantiq/xway
+cflags-$(CONFIG_SOC_FALCON) += -I$(srctree)/arch/mips/include/asm/mach-lantiq/falcon
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/clk.h>
+#include <linux/clkdev.h>
#include <linux/err.h>
#include <linux/list.h>
#include <lantiq_soc.h>
#include "clk.h"
+#include "prom.h"
-struct clk {
- const char *name;
- unsigned long rate;
- unsigned long (*get_rate) (void);
-};
+/* lantiq socs have 3 static clocks */
+static struct clk cpu_clk_generic[3];
-static struct clk *cpu_clk;
-static int cpu_clk_cnt;
+void clkdev_add_static(unsigned long cpu, unsigned long fpi, unsigned long io)
+{
+ cpu_clk_generic[0].rate = cpu;
+ cpu_clk_generic[1].rate = fpi;
+ cpu_clk_generic[2].rate = io;
+}
-/* lantiq socs have 3 static clocks */
-static struct clk cpu_clk_generic[] = {
- {
- .name = "cpu",
- .get_rate = ltq_get_cpu_hz,
- }, {
- .name = "fpi",
- .get_rate = ltq_get_fpi_hz,
- }, {
- .name = "io",
- .get_rate = ltq_get_io_region_clock,
- },
-};
-
-static struct resource ltq_cgu_resource = {
- .name = "cgu",
- .start = LTQ_CGU_BASE_ADDR,
- .end = LTQ_CGU_BASE_ADDR + LTQ_CGU_SIZE - 1,
- .flags = IORESOURCE_MEM,
-};
-
-/* remapped clock register range */
-void __iomem *ltq_cgu_membase;
-
-void clk_init(void)
+struct clk *clk_get_cpu(void)
+{
+ return &cpu_clk_generic[0];
+}
+
+struct clk *clk_get_fpi(void)
+{
+ return &cpu_clk_generic[1];
+}
+EXPORT_SYMBOL_GPL(clk_get_fpi);
+
+struct clk *clk_get_io(void)
{
- cpu_clk = cpu_clk_generic;
- cpu_clk_cnt = ARRAY_SIZE(cpu_clk_generic);
+ return &cpu_clk_generic[2];
}
static inline int clk_good(struct clk *clk)
}
EXPORT_SYMBOL(clk_get_rate);
-struct clk *clk_get(struct device *dev, const char *id)
+int clk_set_rate(struct clk *clk, unsigned long rate)
{
- int i;
-
- for (i = 0; i < cpu_clk_cnt; i++)
- if (!strcmp(id, cpu_clk[i].name))
- return &cpu_clk[i];
- BUG();
- return ERR_PTR(-ENOENT);
-}
-EXPORT_SYMBOL(clk_get);
-
-void clk_put(struct clk *clk)
-{
- /* not used */
+ if (unlikely(!clk_good(clk)))
+ return 0;
+ if (clk->rates && *clk->rates) {
+ unsigned long *r = clk->rates;
+
+ while (*r && (*r != rate))
+ r++;
+ if (!*r) {
+ pr_err("clk %s.%s: trying to set invalid rate %ld\n",
+ clk->cl.dev_id, clk->cl.con_id, rate);
+ return -1;
+ }
+ }
+ clk->rate = rate;
+ return 0;
}
-EXPORT_SYMBOL(clk_put);
+EXPORT_SYMBOL(clk_set_rate);
int clk_enable(struct clk *clk)
{
- /* not used */
- return 0;
+ if (unlikely(!clk_good(clk)))
+ return -1;
+
+ if (clk->enable)
+ return clk->enable(clk);
+
+ return -1;
}
EXPORT_SYMBOL(clk_enable);
void clk_disable(struct clk *clk)
{
- /* not used */
+ if (unlikely(!clk_good(clk)))
+ return;
+
+ if (clk->disable)
+ clk->disable(clk);
}
EXPORT_SYMBOL(clk_disable);
-static inline u32 ltq_get_counter_resolution(void)
+int clk_activate(struct clk *clk)
+{
+ if (unlikely(!clk_good(clk)))
+ return -1;
+
+ if (clk->activate)
+ return clk->activate(clk);
+
+ return -1;
+}
+EXPORT_SYMBOL(clk_activate);
+
+void clk_deactivate(struct clk *clk)
+{
+ if (unlikely(!clk_good(clk)))
+ return;
+
+ if (clk->deactivate)
+ clk->deactivate(clk);
+}
+EXPORT_SYMBOL(clk_deactivate);
+
+static inline u32 get_counter_resolution(void)
{
u32 res;
{
struct clk *clk;
- if (insert_resource(&iomem_resource, <q_cgu_resource) < 0)
- panic("Failed to insert cgu memory");
+ ltq_soc_init();
- if (request_mem_region(ltq_cgu_resource.start,
- resource_size(<q_cgu_resource), "cgu") < 0)
- panic("Failed to request cgu memory");
-
- ltq_cgu_membase = ioremap_nocache(ltq_cgu_resource.start,
- resource_size(<q_cgu_resource));
- if (!ltq_cgu_membase) {
- pr_err("Failed to remap cgu memory\n");
- unreachable();
- }
- clk = clk_get(0, "cpu");
- mips_hpt_frequency = clk_get_rate(clk) / ltq_get_counter_resolution();
+ clk = clk_get_cpu();
+ mips_hpt_frequency = clk_get_rate(clk) / get_counter_resolution();
write_c0_compare(read_c0_count());
+ pr_info("CPU Clock: %ldMHz\n", clk_get_rate(clk) / 1000000);
clk_put(clk);
}
#ifndef _LTQ_CLK_H__
#define _LTQ_CLK_H__
-extern void clk_init(void);
+#include <linux/clkdev.h>
-extern unsigned long ltq_get_cpu_hz(void);
-extern unsigned long ltq_get_fpi_hz(void);
-extern unsigned long ltq_get_io_region_clock(void);
+/* clock speeds */
+#define CLOCK_33M 33333333
+#define CLOCK_60M 60000000
+#define CLOCK_62_5M 62500000
+#define CLOCK_83M 83333333
+#define CLOCK_83_5M 83500000
+#define CLOCK_98_304M 98304000
+#define CLOCK_100M 100000000
+#define CLOCK_111M 111111111
+#define CLOCK_125M 125000000
+#define CLOCK_133M 133333333
+#define CLOCK_150M 150000000
+#define CLOCK_166M 166666666
+#define CLOCK_167M 166666667
+#define CLOCK_196_608M 196608000
+#define CLOCK_200M 200000000
+#define CLOCK_250M 250000000
+#define CLOCK_266M 266666666
+#define CLOCK_300M 300000000
+#define CLOCK_333M 333333333
+#define CLOCK_393M 393215332
+#define CLOCK_400M 400000000
+#define CLOCK_500M 500000000
+#define CLOCK_600M 600000000
+
+/* clock out speeds */
+#define CLOCK_32_768K 32768
+#define CLOCK_1_536M 1536000
+#define CLOCK_2_5M 2500000
+#define CLOCK_12M 12000000
+#define CLOCK_24M 24000000
+#define CLOCK_25M 25000000
+#define CLOCK_30M 30000000
+#define CLOCK_40M 40000000
+#define CLOCK_48M 48000000
+#define CLOCK_50M 50000000
+#define CLOCK_60M 60000000
+
+struct clk {
+ struct clk_lookup cl;
+ unsigned long rate;
+ unsigned long *rates;
+ unsigned int module;
+ unsigned int bits;
+ unsigned long (*get_rate) (void);
+ int (*enable) (struct clk *clk);
+ void (*disable) (struct clk *clk);
+ int (*activate) (struct clk *clk);
+ void (*deactivate) (struct clk *clk);
+ void (*reboot) (struct clk *clk);
+};
+
+extern void clkdev_add_static(unsigned long cpu, unsigned long fpi,
+ unsigned long io);
+
+extern unsigned long ltq_danube_cpu_hz(void);
+extern unsigned long ltq_danube_fpi_hz(void);
+
+extern unsigned long ltq_ar9_cpu_hz(void);
+extern unsigned long ltq_ar9_fpi_hz(void);
+
+extern unsigned long ltq_vr9_cpu_hz(void);
+extern unsigned long ltq_vr9_fpi_hz(void);
#endif
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
- */
-
-#include <linux/init.h>
-#include <linux/export.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/reboot.h>
-#include <linux/platform_device.h>
-#include <linux/leds.h>
-#include <linux/etherdevice.h>
-#include <linux/time.h>
-#include <linux/io.h>
-#include <linux/gpio.h>
-
-#include <asm/bootinfo.h>
-#include <asm/irq.h>
-
-#include <lantiq_soc.h>
-
-#include "devices.h"
-
-/* nor flash */
-static struct resource ltq_nor_resource = {
- .name = "nor",
- .start = LTQ_FLASH_START,
- .end = LTQ_FLASH_START + LTQ_FLASH_MAX - 1,
- .flags = IORESOURCE_MEM,
-};
-
-static struct platform_device ltq_nor = {
- .name = "ltq_nor",
- .resource = <q_nor_resource,
- .num_resources = 1,
-};
-
-void __init ltq_register_nor(struct physmap_flash_data *data)
-{
- ltq_nor.dev.platform_data = data;
- platform_device_register(<q_nor);
-}
-
-/* watchdog */
-static struct resource ltq_wdt_resource = {
- .name = "watchdog",
- .start = LTQ_WDT_BASE_ADDR,
- .end = LTQ_WDT_BASE_ADDR + LTQ_WDT_SIZE - 1,
- .flags = IORESOURCE_MEM,
-};
-
-void __init ltq_register_wdt(void)
-{
- platform_device_register_simple("ltq_wdt", 0, <q_wdt_resource, 1);
-}
-
-/* asc ports */
-static struct resource ltq_asc0_resources[] = {
- {
- .name = "asc0",
- .start = LTQ_ASC0_BASE_ADDR,
- .end = LTQ_ASC0_BASE_ADDR + LTQ_ASC_SIZE - 1,
- .flags = IORESOURCE_MEM,
- },
- IRQ_RES(tx, LTQ_ASC_TIR(0)),
- IRQ_RES(rx, LTQ_ASC_RIR(0)),
- IRQ_RES(err, LTQ_ASC_EIR(0)),
-};
-
-static struct resource ltq_asc1_resources[] = {
- {
- .name = "asc1",
- .start = LTQ_ASC1_BASE_ADDR,
- .end = LTQ_ASC1_BASE_ADDR + LTQ_ASC_SIZE - 1,
- .flags = IORESOURCE_MEM,
- },
- IRQ_RES(tx, LTQ_ASC_TIR(1)),
- IRQ_RES(rx, LTQ_ASC_RIR(1)),
- IRQ_RES(err, LTQ_ASC_EIR(1)),
-};
-
-void __init ltq_register_asc(int port)
-{
- switch (port) {
- case 0:
- platform_device_register_simple("ltq_asc", 0,
- ltq_asc0_resources, ARRAY_SIZE(ltq_asc0_resources));
- break;
- case 1:
- platform_device_register_simple("ltq_asc", 1,
- ltq_asc1_resources, ARRAY_SIZE(ltq_asc1_resources));
- break;
- default:
- break;
- }
-}
-
-#ifdef CONFIG_PCI
-/* pci */
-static struct platform_device ltq_pci = {
- .name = "ltq_pci",
- .num_resources = 0,
-};
-
-void __init ltq_register_pci(struct ltq_pci_data *data)
-{
- ltq_pci.dev.platform_data = data;
- platform_device_register(<q_pci);
-}
-#else
-void __init ltq_register_pci(struct ltq_pci_data *data)
-{
- pr_err("kernel is compiled without PCI support\n");
-}
-#endif
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
- */
-
-#ifndef _LTQ_DEVICES_H__
-#define _LTQ_DEVICES_H__
-
-#include <lantiq_platform.h>
-#include <linux/mtd/physmap.h>
-
-#define IRQ_RES(resname, irq) \
- {.name = #resname, .start = (irq), .flags = IORESOURCE_IRQ}
-
-extern void ltq_register_nor(struct physmap_flash_data *data);
-extern void ltq_register_wdt(void);
-extern void ltq_register_asc(int port);
-extern void ltq_register_pci(struct ltq_pci_data *data);
-
-#endif
--- /dev/null
+obj-$(CONFIG_DT_EASY50712) := easy50712.dtb.o
+
+$(obj)/%.dtb: $(obj)/%.dts
+ $(call if_changed,dtc)
--- /dev/null
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "lantiq,xway", "lantiq,danube";
+
+ cpus {
+ cpu@0 {
+ compatible = "mips,mips24Kc";
+ };
+ };
+
+ biu@1F800000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "lantiq,biu", "simple-bus";
+ reg = <0x1F800000 0x800000>;
+ ranges = <0x0 0x1F800000 0x7FFFFF>;
+
+ icu0: icu@80200 {
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ compatible = "lantiq,icu";
+ reg = <0x80200 0x120>;
+ };
+
+ watchdog@803F0 {
+ compatible = "lantiq,wdt";
+ reg = <0x803F0 0x10>;
+ };
+ };
+
+ sram@1F000000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "lantiq,sram";
+ reg = <0x1F000000 0x800000>;
+ ranges = <0x0 0x1F000000 0x7FFFFF>;
+
+ eiu0: eiu@101000 {
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ interrupt-parent;
+ compatible = "lantiq,eiu-xway";
+ reg = <0x101000 0x1000>;
+ };
+
+ pmu0: pmu@102000 {
+ compatible = "lantiq,pmu-xway";
+ reg = <0x102000 0x1000>;
+ };
+
+ cgu0: cgu@103000 {
+ compatible = "lantiq,cgu-xway";
+ reg = <0x103000 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ rcu0: rcu@203000 {
+ compatible = "lantiq,rcu-xway";
+ reg = <0x203000 0x1000>;
+ };
+ };
+
+ fpi@10000000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "lantiq,fpi", "simple-bus";
+ ranges = <0x0 0x10000000 0xEEFFFFF>;
+ reg = <0x10000000 0xEF00000>;
+
+ gptu@E100A00 {
+ compatible = "lantiq,gptu-xway";
+ reg = <0xE100A00 0x100>;
+ };
+
+ serial@E100C00 {
+ compatible = "lantiq,asc";
+ reg = <0xE100C00 0x400>;
+ interrupt-parent = <&icu0>;
+ interrupts = <112 113 114>;
+ };
+
+ dma0: dma@E104100 {
+ compatible = "lantiq,dma-xway";
+ reg = <0xE104100 0x800>;
+ };
+
+ ebu0: ebu@E105300 {
+ compatible = "lantiq,ebu-xway";
+ reg = <0xE105300 0x100>;
+ };
+
+ pci0: pci@E105400 {
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+ compatible = "lantiq,pci-xway";
+ bus-range = <0x0 0x0>;
+ ranges = <0x2000000 0 0x8000000 0x8000000 0 0x2000000 /* pci memory */
+ 0x1000000 0 0x00000000 0xAE00000 0 0x200000>; /* io space */
+ reg = <0x7000000 0x8000 /* config space */
+ 0xE105400 0x400>; /* pci bridge */
+ };
+ };
+};
--- /dev/null
+/dts-v1/;
+
+/include/ "danube.dtsi"
+
+/ {
+ chosen {
+ bootargs = "console=ttyLTQ0,115200 init=/etc/preinit";
+ };
+
+ memory@0 {
+ reg = <0x0 0x2000000>;
+ };
+
+ fpi@10000000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ localbus@0 {
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges = <0 0 0x0 0x3ffffff /* addrsel0 */
+ 1 0 0x4000000 0x4000010>; /* addsel1 */
+ compatible = "lantiq,localbus", "simple-bus";
+
+ nor-boot@0 {
+ compatible = "lantiq,nor";
+ bank-width = <2>;
+ reg = <0 0x0 0x2000000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "uboot";
+ reg = <0x00000 0x10000>; /* 64 KB */
+ };
+
+ partition@10000 {
+ label = "uboot_env";
+ reg = <0x10000 0x10000>; /* 64 KB */
+ };
+
+ partition@20000 {
+ label = "linux";
+ reg = <0x20000 0x3d0000>;
+ };
+
+ partition@400000 {
+ label = "rootfs";
+ reg = <0x400000 0x400000>;
+ };
+ };
+ };
+
+ gpio: pinmux@E100B10 {
+ compatible = "lantiq,pinctrl-xway";
+ pinctrl-names = "default";
+ pinctrl-0 = <&state_default>;
+
+ #gpio-cells = <2>;
+ gpio-controller;
+ reg = <0xE100B10 0xA0>;
+
+ state_default: pinmux {
+ stp {
+ lantiq,groups = "stp";
+ lantiq,function = "stp";
+ };
+ exin {
+ lantiq,groups = "exin1";
+ lantiq,function = "exin";
+ };
+ pci {
+ lantiq,groups = "gnt1";
+ lantiq,function = "pci";
+ };
+ conf_out {
+ lantiq,pins = "io4", "io5", "io6"; /* stp */
+ lantiq,open-drain;
+ lantiq,pull = <0>;
+ };
+ };
+ };
+
+ etop@E180000 {
+ compatible = "lantiq,etop-xway";
+ reg = <0xE180000 0x40000>;
+ interrupt-parent = <&icu0>;
+ interrupts = <73 78>;
+ phy-mode = "rmii";
+ mac-address = [ 00 11 22 33 44 55 ];
+ };
+
+ stp0: stp@E100BB0 {
+ #gpio-cells = <2>;
+ compatible = "lantiq,gpio-stp-xway";
+ gpio-controller;
+ reg = <0xE100BB0 0x40>;
+
+ lantiq,shadow = <0xfff>;
+ lantiq,groups = <0x3>;
+ };
+
+ pci@E105400 {
+ lantiq,bus-clock = <33333333>;
+ interrupt-map-mask = <0xf800 0x0 0x0 0x7>;
+ interrupt-map = <
+ 0x7000 0 0 1 &icu0 29 1 // slot 14, irq 29
+ >;
+ gpios-reset = <&gpio 21 0>;
+ req-mask = <0x1>; /* GNT1 */
+ };
+
+ };
+};
* Copyright (C) 2010 John Crispin <blogic@openwrt.org>
*/
-#include <linux/init.h>
#include <linux/cpu.h>
-
-#include <lantiq.h>
#include <lantiq_soc.h>
-/* no ioremap possible at this early stage, lets use KSEG1 instead */
-#define LTQ_ASC_BASE KSEG1ADDR(LTQ_ASC1_BASE_ADDR)
#define ASC_BUF 1024
-#define LTQ_ASC_FSTAT ((u32 *)(LTQ_ASC_BASE + 0x0048))
-#define LTQ_ASC_TBUF ((u32 *)(LTQ_ASC_BASE + 0x0020))
+#define LTQ_ASC_FSTAT ((u32 *)(LTQ_EARLY_ASC + 0x0048))
+#ifdef __BIG_ENDIAN
+#define LTQ_ASC_TBUF ((u32 *)(LTQ_EARLY_ASC + 0x0020 + 3))
+#else
+#define LTQ_ASC_TBUF ((u32 *)(LTQ_EARLY_ASC + 0x0020))
+#endif
#define TXMASK 0x3F00
#define TXOFFSET 8
local_irq_save(flags);
do { } while ((ltq_r32(LTQ_ASC_FSTAT) & TXMASK) >> TXOFFSET);
if (c == '\n')
- ltq_w32('\r', LTQ_ASC_TBUF);
- ltq_w32(c, LTQ_ASC_TBUF);
+ ltq_w8('\r', LTQ_ASC_TBUF);
+ ltq_w8(c, LTQ_ASC_TBUF);
local_irq_restore(flags);
}
--- /dev/null
+obj-y := prom.o reset.o sysctrl.o
--- /dev/null
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Copyright (C) 2012 Thomas Langer <thomas.langer@lantiq.com>
+ * Copyright (C) 2012 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/kernel.h>
+#include <asm/io.h>
+
+#include <lantiq_soc.h>
+
+#include "../prom.h"
+
+#define SOC_FALCON "Falcon"
+#define SOC_FALCON_D "Falcon-D"
+#define SOC_FALCON_V "Falcon-V"
+#define SOC_FALCON_M "Falcon-M"
+
+#define COMP_FALCON "lantiq,falcon"
+
+#define PART_SHIFT 12
+#define PART_MASK 0x0FFFF000
+#define REV_SHIFT 28
+#define REV_MASK 0xF0000000
+#define SREV_SHIFT 22
+#define SREV_MASK 0x03C00000
+#define TYPE_SHIFT 26
+#define TYPE_MASK 0x3C000000
+
+/* reset, nmi and ejtag exception vectors */
+#define BOOT_REG_BASE (KSEG1 | 0x1F200000)
+#define BOOT_RVEC (BOOT_REG_BASE | 0x00)
+#define BOOT_NVEC (BOOT_REG_BASE | 0x04)
+#define BOOT_EVEC (BOOT_REG_BASE | 0x08)
+
+void __init ltq_soc_nmi_setup(void)
+{
+ extern void (*nmi_handler)(void);
+
+ ltq_w32((unsigned long)&nmi_handler, (void *)BOOT_NVEC);
+}
+
+void __init ltq_soc_ejtag_setup(void)
+{
+ extern void (*ejtag_debug_handler)(void);
+
+ ltq_w32((unsigned long)&ejtag_debug_handler, (void *)BOOT_EVEC);
+}
+
+void __init ltq_soc_detect(struct ltq_soc_info *i)
+{
+ u32 type;
+ i->partnum = (ltq_r32(FALCON_CHIPID) & PART_MASK) >> PART_SHIFT;
+ i->rev = (ltq_r32(FALCON_CHIPID) & REV_MASK) >> REV_SHIFT;
+ i->srev = ((ltq_r32(FALCON_CHIPCONF) & SREV_MASK) >> SREV_SHIFT);
+ i->compatible = COMP_FALCON;
+ i->type = SOC_TYPE_FALCON;
+ sprintf(i->rev_type, "%c%d%d", (i->srev & 0x4) ? ('B') : ('A'),
+ i->rev & 0x7, (i->srev & 0x3) + 1);
+
+ switch (i->partnum) {
+ case SOC_ID_FALCON:
+ type = (ltq_r32(FALCON_CHIPTYPE) & TYPE_MASK) >> TYPE_SHIFT;
+ switch (type) {
+ case 0:
+ i->name = SOC_FALCON_D;
+ break;
+ case 1:
+ i->name = SOC_FALCON_V;
+ break;
+ case 2:
+ i->name = SOC_FALCON_M;
+ break;
+ default:
+ i->name = SOC_FALCON;
+ break;
+ }
+ break;
+
+ default:
+ unreachable();
+ break;
+ }
+}
--- /dev/null
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Copyright (C) 2012 Thomas Langer <thomas.langer@lantiq.com>
+ * Copyright (C) 2012 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/pm.h>
+#include <asm/reboot.h>
+#include <linux/export.h>
+
+#include <lantiq_soc.h>
+
+/* CPU0 Reset Source Register */
+#define SYS1_CPU0RS 0x0040
+/* reset cause mask */
+#define CPU0RS_MASK 0x0003
+/* CPU0 Boot Mode Register */
+#define SYS1_BM 0x00a0
+/* boot mode mask */
+#define BM_MASK 0x0005
+
+/* allow platform code to find out what surce we booted from */
+unsigned char ltq_boot_select(void)
+{
+ return ltq_sys1_r32(SYS1_BM) & BM_MASK;
+}
+
+/* allow the watchdog driver to find out what the boot reason was */
+int ltq_reset_cause(void)
+{
+ return ltq_sys1_r32(SYS1_CPU0RS) & CPU0RS_MASK;
+}
+EXPORT_SYMBOL_GPL(ltq_reset_cause);
+
+#define BOOT_REG_BASE (KSEG1 | 0x1F200000)
+#define BOOT_PW1_REG (BOOT_REG_BASE | 0x20)
+#define BOOT_PW2_REG (BOOT_REG_BASE | 0x24)
+#define BOOT_PW1 0x4C545100
+#define BOOT_PW2 0x0051544C
+
+#define WDT_REG_BASE (KSEG1 | 0x1F8803F0)
+#define WDT_PW1 0x00BE0000
+#define WDT_PW2 0x00DC0000
+
+static void machine_restart(char *command)
+{
+ local_irq_disable();
+
+ /* reboot magic */
+ ltq_w32(BOOT_PW1, (void *)BOOT_PW1_REG); /* 'LTQ\0' */
+ ltq_w32(BOOT_PW2, (void *)BOOT_PW2_REG); /* '\0QTL' */
+ ltq_w32(0, (void *)BOOT_REG_BASE); /* reset Bootreg RVEC */
+
+ /* watchdog magic */
+ ltq_w32(WDT_PW1, (void *)WDT_REG_BASE);
+ ltq_w32(WDT_PW2 |
+ (0x3 << 26) | /* PWL */
+ (0x2 << 24) | /* CLKDIV */
+ (0x1 << 31) | /* enable */
+ (1), /* reload */
+ (void *)WDT_REG_BASE);
+ unreachable();
+}
+
+static void machine_halt(void)
+{
+ local_irq_disable();
+ unreachable();
+}
+
+static void machine_power_off(void)
+{
+ local_irq_disable();
+ unreachable();
+}
+
+static int __init mips_reboot_setup(void)
+{
+ _machine_restart = machine_restart;
+ _machine_halt = machine_halt;
+ pm_power_off = machine_power_off;
+ return 0;
+}
+
+arch_initcall(mips_reboot_setup);
--- /dev/null
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Copyright (C) 2011 Thomas Langer <thomas.langer@lantiq.com>
+ * Copyright (C) 2011 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/ioport.h>
+#include <linux/export.h>
+#include <linux/clkdev.h>
+#include <linux/of_address.h>
+#include <asm/delay.h>
+
+#include <lantiq_soc.h>
+
+#include "../clk.h"
+
+/* infrastructure control register */
+#define SYS1_INFRAC 0x00bc
+/* Configuration fuses for drivers and pll */
+#define STATUS_CONFIG 0x0040
+
+/* GPE frequency selection */
+#define GPPC_OFFSET 24
+#define GPEFREQ_MASK 0x00000C0
+#define GPEFREQ_OFFSET 10
+/* Clock status register */
+#define SYSCTL_CLKS 0x0000
+/* Clock enable register */
+#define SYSCTL_CLKEN 0x0004
+/* Clock clear register */
+#define SYSCTL_CLKCLR 0x0008
+/* Activation Status Register */
+#define SYSCTL_ACTS 0x0020
+/* Activation Register */
+#define SYSCTL_ACT 0x0024
+/* Deactivation Register */
+#define SYSCTL_DEACT 0x0028
+/* reboot Register */
+#define SYSCTL_RBT 0x002c
+/* CPU0 Clock Control Register */
+#define SYS1_CPU0CC 0x0040
+/* HRST_OUT_N Control Register */
+#define SYS1_HRSTOUTC 0x00c0
+/* clock divider bit */
+#define CPU0CC_CPUDIV 0x0001
+
+/* Activation Status Register */
+#define ACTS_ASC1_ACT 0x00000800
+#define ACTS_I2C_ACT 0x00004000
+#define ACTS_P0 0x00010000
+#define ACTS_P1 0x00010000
+#define ACTS_P2 0x00020000
+#define ACTS_P3 0x00020000
+#define ACTS_P4 0x00040000
+#define ACTS_PADCTRL0 0x00100000
+#define ACTS_PADCTRL1 0x00100000
+#define ACTS_PADCTRL2 0x00200000
+#define ACTS_PADCTRL3 0x00200000
+#define ACTS_PADCTRL4 0x00400000
+
+#define sysctl_w32(m, x, y) ltq_w32((x), sysctl_membase[m] + (y))
+#define sysctl_r32(m, x) ltq_r32(sysctl_membase[m] + (x))
+#define sysctl_w32_mask(m, clear, set, reg) \
+ sysctl_w32(m, (sysctl_r32(m, reg) & ~(clear)) | (set), reg)
+
+#define status_w32(x, y) ltq_w32((x), status_membase + (y))
+#define status_r32(x) ltq_r32(status_membase + (x))
+
+static void __iomem *sysctl_membase[3], *status_membase;
+void __iomem *ltq_sys1_membase, *ltq_ebu_membase;
+
+void falcon_trigger_hrst(int level)
+{
+ sysctl_w32(SYSCTL_SYS1, level & 1, SYS1_HRSTOUTC);
+}
+
+static inline void sysctl_wait(struct clk *clk,
+ unsigned int test, unsigned int reg)
+{
+ int err = 1000000;
+
+ do {} while (--err && ((sysctl_r32(clk->module, reg)
+ & clk->bits) != test));
+ if (!err)
+ pr_err("module de/activation failed %d %08X %08X %08X\n",
+ clk->module, clk->bits, test,
+ sysctl_r32(clk->module, reg) & clk->bits);
+}
+
+static int sysctl_activate(struct clk *clk)
+{
+ sysctl_w32(clk->module, clk->bits, SYSCTL_CLKEN);
+ sysctl_w32(clk->module, clk->bits, SYSCTL_ACT);
+ sysctl_wait(clk, clk->bits, SYSCTL_ACTS);
+ return 0;
+}
+
+static void sysctl_deactivate(struct clk *clk)
+{
+ sysctl_w32(clk->module, clk->bits, SYSCTL_CLKCLR);
+ sysctl_w32(clk->module, clk->bits, SYSCTL_DEACT);
+ sysctl_wait(clk, 0, SYSCTL_ACTS);
+}
+
+static int sysctl_clken(struct clk *clk)
+{
+ sysctl_w32(clk->module, clk->bits, SYSCTL_CLKEN);
+ sysctl_wait(clk, clk->bits, SYSCTL_CLKS);
+ return 0;
+}
+
+static void sysctl_clkdis(struct clk *clk)
+{
+ sysctl_w32(clk->module, clk->bits, SYSCTL_CLKCLR);
+ sysctl_wait(clk, 0, SYSCTL_CLKS);
+}
+
+static void sysctl_reboot(struct clk *clk)
+{
+ unsigned int act;
+ unsigned int bits;
+
+ act = sysctl_r32(clk->module, SYSCTL_ACT);
+ bits = ~act & clk->bits;
+ if (bits != 0) {
+ sysctl_w32(clk->module, bits, SYSCTL_CLKEN);
+ sysctl_w32(clk->module, bits, SYSCTL_ACT);
+ sysctl_wait(clk, bits, SYSCTL_ACTS);
+ }
+ sysctl_w32(clk->module, act & clk->bits, SYSCTL_RBT);
+ sysctl_wait(clk, clk->bits, SYSCTL_ACTS);
+}
+
+/* enable the ONU core */
+static void falcon_gpe_enable(void)
+{
+ unsigned int freq;
+ unsigned int status;
+
+ /* if if the clock is already enabled */
+ status = sysctl_r32(SYSCTL_SYS1, SYS1_INFRAC);
+ if (status & (1 << (GPPC_OFFSET + 1)))
+ return;
+
+ if (status_r32(STATUS_CONFIG) == 0)
+ freq = 1; /* use 625MHz on unfused chip */
+ else
+ freq = (status_r32(STATUS_CONFIG) &
+ GPEFREQ_MASK) >>
+ GPEFREQ_OFFSET;
+
+ /* apply new frequency */
+ sysctl_w32_mask(SYSCTL_SYS1, 7 << (GPPC_OFFSET + 1),
+ freq << (GPPC_OFFSET + 2) , SYS1_INFRAC);
+ udelay(1);
+
+ /* enable new frequency */
+ sysctl_w32_mask(SYSCTL_SYS1, 0, 1 << (GPPC_OFFSET + 1), SYS1_INFRAC);
+ udelay(1);
+}
+
+static inline void clkdev_add_sys(const char *dev, unsigned int module,
+ unsigned int bits)
+{
+ struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL);
+
+ clk->cl.dev_id = dev;
+ clk->cl.con_id = NULL;
+ clk->cl.clk = clk;
+ clk->module = module;
+ clk->activate = sysctl_activate;
+ clk->deactivate = sysctl_deactivate;
+ clk->enable = sysctl_clken;
+ clk->disable = sysctl_clkdis;
+ clk->reboot = sysctl_reboot;
+ clkdev_add(&clk->cl);
+}
+
+void __init ltq_soc_init(void)
+{
+ struct device_node *np_status =
+ of_find_compatible_node(NULL, NULL, "lantiq,status-falcon");
+ struct device_node *np_ebu =
+ of_find_compatible_node(NULL, NULL, "lantiq,ebu-falcon");
+ struct device_node *np_sys1 =
+ of_find_compatible_node(NULL, NULL, "lantiq,sys1-falcon");
+ struct device_node *np_syseth =
+ of_find_compatible_node(NULL, NULL, "lantiq,syseth-falcon");
+ struct device_node *np_sysgpe =
+ of_find_compatible_node(NULL, NULL, "lantiq,sysgpe-falcon");
+ struct resource res_status, res_ebu, res_sys[3];
+ int i;
+
+ /* check if all the core register ranges are available */
+ if (!np_status || !np_ebu || !np_sys1 || !np_syseth || !np_sysgpe)
+ panic("Failed to load core nodes from devicetree");
+
+ if (of_address_to_resource(np_status, 0, &res_status) ||
+ of_address_to_resource(np_ebu, 0, &res_ebu) ||
+ of_address_to_resource(np_sys1, 0, &res_sys[0]) ||
+ of_address_to_resource(np_syseth, 0, &res_sys[1]) ||
+ of_address_to_resource(np_sysgpe, 0, &res_sys[2]))
+ panic("Failed to get core resources");
+
+ if ((request_mem_region(res_status.start, resource_size(&res_status),
+ res_status.name) < 0) ||
+ (request_mem_region(res_ebu.start, resource_size(&res_ebu),
+ res_ebu.name) < 0) ||
+ (request_mem_region(res_sys[0].start,
+ resource_size(&res_sys[0]),
+ res_sys[0].name) < 0) ||
+ (request_mem_region(res_sys[1].start,
+ resource_size(&res_sys[1]),
+ res_sys[1].name) < 0) ||
+ (request_mem_region(res_sys[2].start,
+ resource_size(&res_sys[2]),
+ res_sys[2].name) < 0))
+ pr_err("Failed to request core reources");
+
+ status_membase = ioremap_nocache(res_status.start,
+ resource_size(&res_status));
+ ltq_ebu_membase = ioremap_nocache(res_ebu.start,
+ resource_size(&res_ebu));
+
+ if (!status_membase || !ltq_ebu_membase)
+ panic("Failed to remap core resources");
+
+ for (i = 0; i < 3; i++) {
+ sysctl_membase[i] = ioremap_nocache(res_sys[i].start,
+ resource_size(&res_sys[i]));
+ if (!sysctl_membase[i])
+ panic("Failed to remap sysctrl resources");
+ }
+ ltq_sys1_membase = sysctl_membase[0];
+
+ falcon_gpe_enable();
+
+ /* get our 3 static rates for cpu, fpi and io clocks */
+ if (ltq_sys1_r32(SYS1_CPU0CC) & CPU0CC_CPUDIV)
+ clkdev_add_static(CLOCK_200M, CLOCK_100M, CLOCK_200M);
+ else
+ clkdev_add_static(CLOCK_400M, CLOCK_100M, CLOCK_200M);
+
+ /* add our clock domains */
+ clkdev_add_sys("1d810000.gpio", SYSCTL_SYSETH, ACTS_P0);
+ clkdev_add_sys("1d810100.gpio", SYSCTL_SYSETH, ACTS_P2);
+ clkdev_add_sys("1e800100.gpio", SYSCTL_SYS1, ACTS_P1);
+ clkdev_add_sys("1e800200.gpio", SYSCTL_SYS1, ACTS_P3);
+ clkdev_add_sys("1e800300.gpio", SYSCTL_SYS1, ACTS_P4);
+ clkdev_add_sys("1db01000.pad", SYSCTL_SYSETH, ACTS_PADCTRL0);
+ clkdev_add_sys("1db02000.pad", SYSCTL_SYSETH, ACTS_PADCTRL2);
+ clkdev_add_sys("1e800400.pad", SYSCTL_SYS1, ACTS_PADCTRL1);
+ clkdev_add_sys("1e800500.pad", SYSCTL_SYS1, ACTS_PADCTRL3);
+ clkdev_add_sys("1e800600.pad", SYSCTL_SYS1, ACTS_PADCTRL4);
+ clkdev_add_sys("1e100C00.serial", SYSCTL_SYS1, ACTS_ASC1_ACT);
+ clkdev_add_sys("1e200000.i2c", SYSCTL_SYS1, ACTS_I2C_ACT);
+}
#include <linux/interrupt.h>
#include <linux/ioport.h>
+#include <linux/sched.h>
+#include <linux/irqdomain.h>
+#include <linux/of_platform.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
#include <asm/bootinfo.h>
#include <asm/irq_cpu.h>
#include <lantiq_soc.h>
#include <irq.h>
-/* register definitions */
+/* register definitions - internal irqs */
#define LTQ_ICU_IM0_ISR 0x0000
#define LTQ_ICU_IM0_IER 0x0008
#define LTQ_ICU_IM0_IOSR 0x0010
#define LTQ_ICU_IM1_ISR 0x0028
#define LTQ_ICU_OFFSET (LTQ_ICU_IM1_ISR - LTQ_ICU_IM0_ISR)
+/* register definitions - external irqs */
#define LTQ_EIU_EXIN_C 0x0000
#define LTQ_EIU_EXIN_INIC 0x0004
#define LTQ_EIU_EXIN_INEN 0x000C
#define LTQ_EIU_IR4 (INT_NUM_IM1_IRL0 + 1)
#define LTQ_EIU_IR5 (INT_NUM_IM1_IRL0 + 2)
#define LTQ_EIU_IR6 (INT_NUM_IM2_IRL0 + 30)
-
+#define XWAY_EXIN_COUNT 3
#define MAX_EIU 6
-/* irqs generated by device attached to the EBU need to be acked in
+/* the performance counter */
+#define LTQ_PERF_IRQ (INT_NUM_IM4_IRL0 + 31)
+
+/*
+ * irqs generated by devices attached to the EBU need to be acked in
* a special manner
*/
#define LTQ_ICU_EBU_IRQ 22
#define ltq_eiu_w32(x, y) ltq_w32((x), ltq_eiu_membase + (y))
#define ltq_eiu_r32(x) ltq_r32(ltq_eiu_membase + (x))
+/* our 2 ipi interrupts for VSMP */
+#define MIPS_CPU_IPI_RESCHED_IRQ 0
+#define MIPS_CPU_IPI_CALL_IRQ 1
+
+/* we have a cascade of 8 irqs */
+#define MIPS_CPU_IRQ_CASCADE 8
+
+#if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_MIPS_MT_SMTC)
+int gic_present;
+#endif
+
static unsigned short ltq_eiu_irq[MAX_EIU] = {
LTQ_EIU_IR0,
LTQ_EIU_IR1,
LTQ_EIU_IR5,
};
-static struct resource ltq_icu_resource = {
- .name = "icu",
- .start = LTQ_ICU_BASE_ADDR,
- .end = LTQ_ICU_BASE_ADDR + LTQ_ICU_SIZE - 1,
- .flags = IORESOURCE_MEM,
-};
-
-static struct resource ltq_eiu_resource = {
- .name = "eiu",
- .start = LTQ_EIU_BASE_ADDR,
- .end = LTQ_EIU_BASE_ADDR + LTQ_ICU_SIZE - 1,
- .flags = IORESOURCE_MEM,
-};
-
+static int exin_avail;
static void __iomem *ltq_icu_membase;
static void __iomem *ltq_eiu_membase;
void ltq_disable_irq(struct irq_data *d)
{
u32 ier = LTQ_ICU_IM0_IER;
- int irq_nr = d->irq - INT_NUM_IRQ0;
+ int offset = d->hwirq - MIPS_CPU_IRQ_CASCADE;
- ier += LTQ_ICU_OFFSET * (irq_nr / INT_NUM_IM_OFFSET);
- irq_nr %= INT_NUM_IM_OFFSET;
- ltq_icu_w32(ltq_icu_r32(ier) & ~(1 << irq_nr), ier);
+ ier += LTQ_ICU_OFFSET * (offset / INT_NUM_IM_OFFSET);
+ offset %= INT_NUM_IM_OFFSET;
+ ltq_icu_w32(ltq_icu_r32(ier) & ~BIT(offset), ier);
}
void ltq_mask_and_ack_irq(struct irq_data *d)
{
u32 ier = LTQ_ICU_IM0_IER;
u32 isr = LTQ_ICU_IM0_ISR;
- int irq_nr = d->irq - INT_NUM_IRQ0;
+ int offset = d->hwirq - MIPS_CPU_IRQ_CASCADE;
- ier += LTQ_ICU_OFFSET * (irq_nr / INT_NUM_IM_OFFSET);
- isr += LTQ_ICU_OFFSET * (irq_nr / INT_NUM_IM_OFFSET);
- irq_nr %= INT_NUM_IM_OFFSET;
- ltq_icu_w32(ltq_icu_r32(ier) & ~(1 << irq_nr), ier);
- ltq_icu_w32((1 << irq_nr), isr);
+ ier += LTQ_ICU_OFFSET * (offset / INT_NUM_IM_OFFSET);
+ isr += LTQ_ICU_OFFSET * (offset / INT_NUM_IM_OFFSET);
+ offset %= INT_NUM_IM_OFFSET;
+ ltq_icu_w32(ltq_icu_r32(ier) & ~BIT(offset), ier);
+ ltq_icu_w32(BIT(offset), isr);
}
static void ltq_ack_irq(struct irq_data *d)
{
u32 isr = LTQ_ICU_IM0_ISR;
- int irq_nr = d->irq - INT_NUM_IRQ0;
+ int offset = d->hwirq - MIPS_CPU_IRQ_CASCADE;
- isr += LTQ_ICU_OFFSET * (irq_nr / INT_NUM_IM_OFFSET);
- irq_nr %= INT_NUM_IM_OFFSET;
- ltq_icu_w32((1 << irq_nr), isr);
+ isr += LTQ_ICU_OFFSET * (offset / INT_NUM_IM_OFFSET);
+ offset %= INT_NUM_IM_OFFSET;
+ ltq_icu_w32(BIT(offset), isr);
}
void ltq_enable_irq(struct irq_data *d)
{
u32 ier = LTQ_ICU_IM0_IER;
- int irq_nr = d->irq - INT_NUM_IRQ0;
+ int offset = d->hwirq - MIPS_CPU_IRQ_CASCADE;
- ier += LTQ_ICU_OFFSET * (irq_nr / INT_NUM_IM_OFFSET);
- irq_nr %= INT_NUM_IM_OFFSET;
- ltq_icu_w32(ltq_icu_r32(ier) | (1 << irq_nr), ier);
+ ier += LTQ_ICU_OFFSET * (offset / INT_NUM_IM_OFFSET);
+ offset %= INT_NUM_IM_OFFSET;
+ ltq_icu_w32(ltq_icu_r32(ier) | BIT(offset), ier);
}
static unsigned int ltq_startup_eiu_irq(struct irq_data *d)
ltq_enable_irq(d);
for (i = 0; i < MAX_EIU; i++) {
- if (d->irq == ltq_eiu_irq[i]) {
+ if (d->hwirq == ltq_eiu_irq[i]) {
/* low level - we should really handle set_type */
ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_C) |
(0x6 << (i * 4)), LTQ_EIU_EXIN_C);
/* clear all pending */
- ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_INIC) & ~(1 << i),
+ ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_INIC) & ~BIT(i),
LTQ_EIU_EXIN_INIC);
/* enable */
- ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_INEN) | (1 << i),
+ ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_INEN) | BIT(i),
LTQ_EIU_EXIN_INEN);
break;
}
ltq_disable_irq(d);
for (i = 0; i < MAX_EIU; i++) {
- if (d->irq == ltq_eiu_irq[i]) {
+ if (d->hwirq == ltq_eiu_irq[i]) {
/* disable */
- ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_INEN) & ~(1 << i),
+ ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_INEN) & ~BIT(i),
LTQ_EIU_EXIN_INEN);
break;
}
if (irq == 0)
return;
- /* silicon bug causes only the msb set to 1 to be valid. all
+ /*
+ * silicon bug causes only the msb set to 1 to be valid. all
* other bits might be bogus
*/
irq = __fls(irq);
- do_IRQ((int)irq + INT_NUM_IM0_IRL0 + (INT_NUM_IM_OFFSET * module));
+ do_IRQ((int)irq + MIPS_CPU_IRQ_CASCADE + (INT_NUM_IM_OFFSET * module));
/* if this is a EBU irq, we need to ack it or get a deadlock */
- if ((irq == LTQ_ICU_EBU_IRQ) && (module == 0))
+ if ((irq == LTQ_ICU_EBU_IRQ) && (module == 0) && LTQ_EBU_PCC_ISTAT)
ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_PCC_ISTAT) | 0x10,
LTQ_EBU_PCC_ISTAT);
}
do_IRQ(MIPS_CPU_TIMER_IRQ);
}
+#ifdef CONFIG_MIPS_MT_SMP
+void __init arch_init_ipiirq(int irq, struct irqaction *action)
+{
+ setup_irq(irq, action);
+ irq_set_handler(irq, handle_percpu_irq);
+}
+
+static void ltq_sw0_irqdispatch(void)
+{
+ do_IRQ(MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_RESCHED_IRQ);
+}
+
+static void ltq_sw1_irqdispatch(void)
+{
+ do_IRQ(MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_CALL_IRQ);
+}
+static irqreturn_t ipi_resched_interrupt(int irq, void *dev_id)
+{
+ scheduler_ipi();
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t ipi_call_interrupt(int irq, void *dev_id)
+{
+ smp_call_function_interrupt();
+ return IRQ_HANDLED;
+}
+
+static struct irqaction irq_resched = {
+ .handler = ipi_resched_interrupt,
+ .flags = IRQF_PERCPU,
+ .name = "IPI_resched"
+};
+
+static struct irqaction irq_call = {
+ .handler = ipi_call_interrupt,
+ .flags = IRQF_PERCPU,
+ .name = "IPI_call"
+};
+#endif
+
asmlinkage void plat_irq_dispatch(void)
{
unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM;
return;
}
+static int icu_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw)
+{
+ struct irq_chip *chip = <q_irq_type;
+ int i;
+
+ for (i = 0; i < exin_avail; i++)
+ if (hw == ltq_eiu_irq[i])
+ chip = <q_eiu_type;
+
+ irq_set_chip_and_handler(hw, chip, handle_level_irq);
+
+ return 0;
+}
+
+static const struct irq_domain_ops irq_domain_ops = {
+ .xlate = irq_domain_xlate_onetwocell,
+ .map = icu_map,
+};
+
static struct irqaction cascade = {
.handler = no_action,
.name = "cascade",
};
-void __init arch_init_irq(void)
+int __init icu_of_init(struct device_node *node, struct device_node *parent)
{
+ struct device_node *eiu_node;
+ struct resource res;
int i;
- if (insert_resource(&iomem_resource, <q_icu_resource) < 0)
- panic("Failed to insert icu memory");
+ if (of_address_to_resource(node, 0, &res))
+ panic("Failed to get icu memory range");
- if (request_mem_region(ltq_icu_resource.start,
- resource_size(<q_icu_resource), "icu") < 0)
- panic("Failed to request icu memory");
+ if (request_mem_region(res.start, resource_size(&res), res.name) < 0)
+ pr_err("Failed to request icu memory");
- ltq_icu_membase = ioremap_nocache(ltq_icu_resource.start,
- resource_size(<q_icu_resource));
+ ltq_icu_membase = ioremap_nocache(res.start, resource_size(&res));
if (!ltq_icu_membase)
panic("Failed to remap icu memory");
- if (insert_resource(&iomem_resource, <q_eiu_resource) < 0)
- panic("Failed to insert eiu memory");
-
- if (request_mem_region(ltq_eiu_resource.start,
- resource_size(<q_eiu_resource), "eiu") < 0)
- panic("Failed to request eiu memory");
-
- ltq_eiu_membase = ioremap_nocache(ltq_eiu_resource.start,
- resource_size(<q_eiu_resource));
- if (!ltq_eiu_membase)
- panic("Failed to remap eiu memory");
+ /* the external interrupts are optional and xway only */
+ eiu_node = of_find_compatible_node(NULL, NULL, "lantiq,eiu");
+ if (eiu_node && of_address_to_resource(eiu_node, 0, &res)) {
+ /* find out how many external irq sources we have */
+ const __be32 *count = of_get_property(node,
+ "lantiq,count", NULL);
+
+ if (count)
+ exin_avail = *count;
+ if (exin_avail > MAX_EIU)
+ exin_avail = MAX_EIU;
+
+ if (request_mem_region(res.start, resource_size(&res),
+ res.name) < 0)
+ pr_err("Failed to request eiu memory");
+
+ ltq_eiu_membase = ioremap_nocache(res.start,
+ resource_size(&res));
+ if (!ltq_eiu_membase)
+ panic("Failed to remap eiu memory");
+ }
- /* make sure all irqs are turned off by default */
- for (i = 0; i < 5; i++)
+ /* turn off all irqs by default */
+ for (i = 0; i < 5; i++) {
+ /* make sure all irqs are turned off by default */
ltq_icu_w32(0, LTQ_ICU_IM0_IER + (i * LTQ_ICU_OFFSET));
-
- /* clear all possibly pending interrupts */
- ltq_icu_w32(~0, LTQ_ICU_IM0_ISR + (i * LTQ_ICU_OFFSET));
+ /* clear all possibly pending interrupts */
+ ltq_icu_w32(~0, LTQ_ICU_IM0_ISR + (i * LTQ_ICU_OFFSET));
+ }
mips_cpu_irq_init();
set_vi_handler(7, ltq_hw5_irqdispatch);
}
- for (i = INT_NUM_IRQ0;
- i <= (INT_NUM_IRQ0 + (5 * INT_NUM_IM_OFFSET)); i++)
- if ((i == LTQ_EIU_IR0) || (i == LTQ_EIU_IR1) ||
- (i == LTQ_EIU_IR2))
- irq_set_chip_and_handler(i, <q_eiu_type,
- handle_level_irq);
- /* EIU3-5 only exist on ar9 and vr9 */
- else if (((i == LTQ_EIU_IR3) || (i == LTQ_EIU_IR4) ||
- (i == LTQ_EIU_IR5)) && (ltq_is_ar9() || ltq_is_vr9()))
- irq_set_chip_and_handler(i, <q_eiu_type,
- handle_level_irq);
- else
- irq_set_chip_and_handler(i, <q_irq_type,
- handle_level_irq);
+ irq_domain_add_linear(node, 6 * INT_NUM_IM_OFFSET,
+ &irq_domain_ops, 0);
+
+#if defined(CONFIG_MIPS_MT_SMP)
+ if (cpu_has_vint) {
+ pr_info("Setting up IPI vectored interrupts\n");
+ set_vi_handler(MIPS_CPU_IPI_RESCHED_IRQ, ltq_sw0_irqdispatch);
+ set_vi_handler(MIPS_CPU_IPI_CALL_IRQ, ltq_sw1_irqdispatch);
+ }
+ arch_init_ipiirq(MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_RESCHED_IRQ,
+ &irq_resched);
+ arch_init_ipiirq(MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_CALL_IRQ, &irq_call);
+#endif
#if !defined(CONFIG_MIPS_MT_SMP) && !defined(CONFIG_MIPS_MT_SMTC)
set_c0_status(IE_IRQ0 | IE_IRQ1 | IE_IRQ2 |
set_c0_status(IE_SW0 | IE_SW1 | IE_IRQ0 | IE_IRQ1 |
IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5);
#endif
+
+ /* tell oprofile which irq to use */
+ cp0_perfcount_irq = LTQ_PERF_IRQ;
+ return 0;
}
unsigned int __cpuinit get_c0_compare_int(void)
{
return CP0_LEGACY_COMPARE_IRQ;
}
+
+static struct of_device_id __initdata of_irq_ids[] = {
+ { .compatible = "lantiq,icu", .data = icu_of_init },
+ {},
+};
+
+void __init arch_init_irq(void)
+{
+ of_irq_init(of_irq_ids);
+}
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
- */
-
-#ifndef _LANTIQ_MACH_H__
-#define _LANTIQ_MACH_H__
-
-#include <asm/mips_machine.h>
-
-enum lantiq_mach_type {
- LTQ_MACH_GENERIC = 0,
- LTQ_MACH_EASY50712, /* Danube evaluation board */
- LTQ_MACH_EASY50601, /* Amazon SE evaluation board */
-};
-
-#endif
#include <linux/export.h>
#include <linux/clk.h>
+#include <linux/of_platform.h>
#include <asm/bootinfo.h>
#include <asm/time.h>
#include "prom.h"
#include "clk.h"
-static struct ltq_soc_info soc_info;
-
-unsigned int ltq_get_cpu_ver(void)
-{
- return soc_info.rev;
-}
-EXPORT_SYMBOL(ltq_get_cpu_ver);
+/* access to the ebu needs to be locked between different drivers */
+DEFINE_SPINLOCK(ebu_lock);
+EXPORT_SYMBOL_GPL(ebu_lock);
-unsigned int ltq_get_soc_type(void)
-{
- return soc_info.type;
-}
-EXPORT_SYMBOL(ltq_get_soc_type);
+/*
+ * this struct is filled by the soc specific detection code and holds
+ * information about the specific soc type, revision and name
+ */
+static struct ltq_soc_info soc_info;
const char *get_system_type(void)
{
char **argv = (char **) KSEG1ADDR(fw_arg1);
int i;
+ arcs_cmdline[0] = '\0';
+
for (i = 0; i < argc; i++) {
- char *p = (char *) KSEG1ADDR(argv[i]);
+ char *p = (char *) KSEG1ADDR(argv[i]);
- if (p && *p) {
+ if (CPHYSADDR(p) && *p) {
strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
}
}
}
-void __init prom_init(void)
+void __init plat_mem_setup(void)
{
- struct clk *clk;
+ ioport_resource.start = IOPORT_RESOURCE_START;
+ ioport_resource.end = IOPORT_RESOURCE_END;
+ iomem_resource.start = IOMEM_RESOURCE_START;
+ iomem_resource.end = IOMEM_RESOURCE_END;
+
+ set_io_port_base((unsigned long) KSEG1);
+ /*
+ * Load the builtin devicetree. This causes the chosen node to be
+ * parsed resulting in our memory appearing
+ */
+ __dt_setup_arch(&__dtb_start);
+}
+
+void __init prom_init(void)
+{
+ /* call the soc specific detetcion code and get it to fill soc_info */
ltq_soc_detect(&soc_info);
- clk_init();
- clk = clk_get(0, "cpu");
- snprintf(soc_info.sys_type, LTQ_SYS_TYPE_LEN - 1, "%s rev1.%d",
- soc_info.name, soc_info.rev);
- clk_put(clk);
+ snprintf(soc_info.sys_type, LTQ_SYS_TYPE_LEN - 1, "%s rev %s",
+ soc_info.name, soc_info.rev_type);
soc_info.sys_type[LTQ_SYS_TYPE_LEN - 1] = '\0';
pr_info("SoC: %s\n", soc_info.sys_type);
prom_init_cmdline();
+
+#if defined(CONFIG_MIPS_MT_SMP)
+ if (register_vsmp_smp_ops())
+ panic("failed to register_vsmp_smp_ops()");
+#endif
}
+
+int __init plat_of_setup(void)
+{
+ static struct of_device_id of_ids[3];
+
+ if (!of_have_populated_dt())
+ panic("device tree not present");
+
+ strncpy(of_ids[0].compatible, soc_info.compatible,
+ sizeof(of_ids[0].compatible));
+ strncpy(of_ids[1].compatible, "simple-bus",
+ sizeof(of_ids[1].compatible));
+ return of_platform_bus_probe(NULL, of_ids, NULL);
+}
+
+arch_initcall(plat_of_setup);
#define _LTQ_PROM_H__
#define LTQ_SYS_TYPE_LEN 0x100
+#define LTQ_SYS_REV_LEN 0x10
struct ltq_soc_info {
unsigned char *name;
unsigned int rev;
+ unsigned char rev_type[LTQ_SYS_REV_LEN];
+ unsigned int srev;
unsigned int partnum;
unsigned int type;
unsigned char sys_type[LTQ_SYS_TYPE_LEN];
+ unsigned char *compatible;
};
extern void ltq_soc_detect(struct ltq_soc_info *i);
-extern void ltq_soc_setup(void);
+extern void ltq_soc_init(void);
+
+extern struct boot_param_header __dtb_start;
#endif
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/export.h>
-#include <linux/io.h>
-#include <linux/ioport.h>
-#include <asm/bootinfo.h>
-
-#include <lantiq_soc.h>
-
-#include "machtypes.h"
-#include "devices.h"
-#include "prom.h"
-
-void __init plat_mem_setup(void)
-{
- /* assume 16M as default incase uboot fails to pass proper ramsize */
- unsigned long memsize = 16;
- char **envp = (char **) KSEG1ADDR(fw_arg2);
-
- ioport_resource.start = IOPORT_RESOURCE_START;
- ioport_resource.end = IOPORT_RESOURCE_END;
- iomem_resource.start = IOMEM_RESOURCE_START;
- iomem_resource.end = IOMEM_RESOURCE_END;
-
- set_io_port_base((unsigned long) KSEG1);
-
- while (*envp) {
- char *e = (char *)KSEG1ADDR(*envp);
- if (!strncmp(e, "memsize=", 8)) {
- e += 8;
- if (strict_strtoul(e, 0, &memsize))
- pr_warn("bad memsize specified\n");
- }
- envp++;
- }
- memsize *= 1024 * 1024;
- add_memory_region(0x00000000, memsize, BOOT_MEM_RAM);
-}
-
-static int __init
-lantiq_setup(void)
-{
- ltq_soc_setup();
- mips_machine_setup();
- return 0;
-}
-
-arch_initcall(lantiq_setup);
-
-static void __init
-lantiq_generic_init(void)
-{
- /* Nothing to do */
-}
-
-MIPS_MACHINE(LTQ_MACH_GENERIC,
- "Generic",
- "Generic Lantiq based board",
- lantiq_generic_init);
+++ /dev/null
-if SOC_XWAY
-
-menu "MIPS Machine"
-
-config LANTIQ_MACH_EASY50712
- bool "Easy50712 - Danube"
- default y
-
-endmenu
-
-endif
-
-if SOC_AMAZON_SE
-
-menu "MIPS Machine"
-
-config LANTIQ_MACH_EASY50601
- bool "Easy50601 - Amazon SE"
- default y
-
-endmenu
-
-endif
-obj-y := pmu.o ebu.o reset.o gpio.o gpio_stp.o gpio_ebu.o devices.o dma.o
-
-obj-$(CONFIG_SOC_XWAY) += clk-xway.o prom-xway.o setup-xway.o
-obj-$(CONFIG_SOC_AMAZON_SE) += clk-ase.o prom-ase.o setup-ase.o
-
-obj-$(CONFIG_LANTIQ_MACH_EASY50712) += mach-easy50712.o
-obj-$(CONFIG_LANTIQ_MACH_EASY50601) += mach-easy50601.o
+obj-y := prom.o sysctrl.o clk.o reset.o gpio.o dma.o
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Copyright (C) 2011 John Crispin <blogic@openwrt.org>
- */
-
-#include <linux/io.h>
-#include <linux/export.h>
-#include <linux/init.h>
-#include <linux/clk.h>
-
-#include <asm/time.h>
-#include <asm/irq.h>
-#include <asm/div64.h>
-
-#include <lantiq_soc.h>
-
-/* cgu registers */
-#define LTQ_CGU_SYS 0x0010
-
-unsigned int ltq_get_io_region_clock(void)
-{
- return CLOCK_133M;
-}
-EXPORT_SYMBOL(ltq_get_io_region_clock);
-
-unsigned int ltq_get_fpi_bus_clock(int fpi)
-{
- return CLOCK_133M;
-}
-EXPORT_SYMBOL(ltq_get_fpi_bus_clock);
-
-unsigned int ltq_get_cpu_hz(void)
-{
- if (ltq_cgu_r32(LTQ_CGU_SYS) & (1 << 5))
- return CLOCK_266M;
- else
- return CLOCK_133M;
-}
-EXPORT_SYMBOL(ltq_get_cpu_hz);
-
-unsigned int ltq_get_fpi_hz(void)
-{
- return CLOCK_133M;
-}
-EXPORT_SYMBOL(ltq_get_fpi_hz);
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
- */
-
-#include <linux/io.h>
-#include <linux/export.h>
-#include <linux/init.h>
-#include <linux/clk.h>
-
-#include <asm/time.h>
-#include <asm/irq.h>
-#include <asm/div64.h>
-
-#include <lantiq_soc.h>
-
-static unsigned int ltq_ram_clocks[] = {
- CLOCK_167M, CLOCK_133M, CLOCK_111M, CLOCK_83M };
-#define DDR_HZ ltq_ram_clocks[ltq_cgu_r32(LTQ_CGU_SYS) & 0x3]
-
-#define BASIC_FREQUENCY_1 35328000
-#define BASIC_FREQUENCY_2 36000000
-#define BASIS_REQUENCY_USB 12000000
-
-#define GET_BITS(x, msb, lsb) \
- (((x) & ((1 << ((msb) + 1)) - 1)) >> (lsb))
-
-#define LTQ_CGU_PLL0_CFG 0x0004
-#define LTQ_CGU_PLL1_CFG 0x0008
-#define LTQ_CGU_PLL2_CFG 0x000C
-#define LTQ_CGU_SYS 0x0010
-#define LTQ_CGU_UPDATE 0x0014
-#define LTQ_CGU_IF_CLK 0x0018
-#define LTQ_CGU_OSC_CON 0x001C
-#define LTQ_CGU_SMD 0x0020
-#define LTQ_CGU_CT1SR 0x0028
-#define LTQ_CGU_CT2SR 0x002C
-#define LTQ_CGU_PCMCR 0x0030
-#define LTQ_CGU_PCI_CR 0x0034
-#define LTQ_CGU_PD_PC 0x0038
-#define LTQ_CGU_FMR 0x003C
-
-#define CGU_PLL0_PHASE_DIVIDER_ENABLE \
- (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & (1 << 31))
-#define CGU_PLL0_BYPASS \
- (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & (1 << 30))
-#define CGU_PLL0_CFG_DSMSEL \
- (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & (1 << 28))
-#define CGU_PLL0_CFG_FRAC_EN \
- (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & (1 << 27))
-#define CGU_PLL1_SRC \
- (ltq_cgu_r32(LTQ_CGU_PLL1_CFG) & (1 << 31))
-#define CGU_PLL2_PHASE_DIVIDER_ENABLE \
- (ltq_cgu_r32(LTQ_CGU_PLL2_CFG) & (1 << 20))
-#define CGU_SYS_FPI_SEL (1 << 6)
-#define CGU_SYS_DDR_SEL 0x3
-#define CGU_PLL0_SRC (1 << 29)
-
-#define CGU_PLL0_CFG_PLLK GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL0_CFG), 26, 17)
-#define CGU_PLL0_CFG_PLLN GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL0_CFG), 12, 6)
-#define CGU_PLL0_CFG_PLLM GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL0_CFG), 5, 2)
-#define CGU_PLL2_SRC GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL2_CFG), 18, 17)
-#define CGU_PLL2_CFG_INPUT_DIV GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL2_CFG), 16, 13)
-
-static unsigned int ltq_get_pll0_fdiv(void);
-
-static inline unsigned int get_input_clock(int pll)
-{
- switch (pll) {
- case 0:
- if (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & CGU_PLL0_SRC)
- return BASIS_REQUENCY_USB;
- else if (CGU_PLL0_PHASE_DIVIDER_ENABLE)
- return BASIC_FREQUENCY_1;
- else
- return BASIC_FREQUENCY_2;
- case 1:
- if (CGU_PLL1_SRC)
- return BASIS_REQUENCY_USB;
- else if (CGU_PLL0_PHASE_DIVIDER_ENABLE)
- return BASIC_FREQUENCY_1;
- else
- return BASIC_FREQUENCY_2;
- case 2:
- switch (CGU_PLL2_SRC) {
- case 0:
- return ltq_get_pll0_fdiv();
- case 1:
- return CGU_PLL2_PHASE_DIVIDER_ENABLE ?
- BASIC_FREQUENCY_1 :
- BASIC_FREQUENCY_2;
- case 2:
- return BASIS_REQUENCY_USB;
- }
- default:
- return 0;
- }
-}
-
-static inline unsigned int cal_dsm(int pll, unsigned int num, unsigned int den)
-{
- u64 res, clock = get_input_clock(pll);
-
- res = num * clock;
- do_div(res, den);
- return res;
-}
-
-static inline unsigned int mash_dsm(int pll, unsigned int M, unsigned int N,
- unsigned int K)
-{
- unsigned int num = ((N + 1) << 10) + K;
- unsigned int den = (M + 1) << 10;
-
- return cal_dsm(pll, num, den);
-}
-
-static inline unsigned int ssff_dsm_1(int pll, unsigned int M, unsigned int N,
- unsigned int K)
-{
- unsigned int num = ((N + 1) << 11) + K + 512;
- unsigned int den = (M + 1) << 11;
-
- return cal_dsm(pll, num, den);
-}
-
-static inline unsigned int ssff_dsm_2(int pll, unsigned int M, unsigned int N,
- unsigned int K)
-{
- unsigned int num = K >= 512 ?
- ((N + 1) << 12) + K - 512 : ((N + 1) << 12) + K + 3584;
- unsigned int den = (M + 1) << 12;
-
- return cal_dsm(pll, num, den);
-}
-
-static inline unsigned int dsm(int pll, unsigned int M, unsigned int N,
- unsigned int K, unsigned int dsmsel, unsigned int phase_div_en)
-{
- if (!dsmsel)
- return mash_dsm(pll, M, N, K);
- else if (!phase_div_en)
- return mash_dsm(pll, M, N, K);
- else
- return ssff_dsm_2(pll, M, N, K);
-}
-
-static inline unsigned int ltq_get_pll0_fosc(void)
-{
- if (CGU_PLL0_BYPASS)
- return get_input_clock(0);
- else
- return !CGU_PLL0_CFG_FRAC_EN
- ? dsm(0, CGU_PLL0_CFG_PLLM, CGU_PLL0_CFG_PLLN, 0,
- CGU_PLL0_CFG_DSMSEL,
- CGU_PLL0_PHASE_DIVIDER_ENABLE)
- : dsm(0, CGU_PLL0_CFG_PLLM, CGU_PLL0_CFG_PLLN,
- CGU_PLL0_CFG_PLLK, CGU_PLL0_CFG_DSMSEL,
- CGU_PLL0_PHASE_DIVIDER_ENABLE);
-}
-
-static unsigned int ltq_get_pll0_fdiv(void)
-{
- unsigned int div = CGU_PLL2_CFG_INPUT_DIV + 1;
-
- return (ltq_get_pll0_fosc() + (div >> 1)) / div;
-}
-
-unsigned int ltq_get_io_region_clock(void)
-{
- unsigned int ret = ltq_get_pll0_fosc();
-
- switch (ltq_cgu_r32(LTQ_CGU_PLL2_CFG) & CGU_SYS_DDR_SEL) {
- default:
- case 0:
- return (ret + 1) / 2;
- case 1:
- return (ret * 2 + 2) / 5;
- case 2:
- return (ret + 1) / 3;
- case 3:
- return (ret + 2) / 4;
- }
-}
-EXPORT_SYMBOL(ltq_get_io_region_clock);
-
-unsigned int ltq_get_fpi_bus_clock(int fpi)
-{
- unsigned int ret = ltq_get_io_region_clock();
-
- if ((fpi == 2) && (ltq_cgu_r32(LTQ_CGU_SYS) & CGU_SYS_FPI_SEL))
- ret >>= 1;
- return ret;
-}
-EXPORT_SYMBOL(ltq_get_fpi_bus_clock);
-
-unsigned int ltq_get_cpu_hz(void)
-{
- switch (ltq_cgu_r32(LTQ_CGU_SYS) & 0xc) {
- case 0:
- return CLOCK_333M;
- case 4:
- return DDR_HZ;
- case 8:
- return DDR_HZ << 1;
- default:
- return DDR_HZ >> 1;
- }
-}
-EXPORT_SYMBOL(ltq_get_cpu_hz);
-
-unsigned int ltq_get_fpi_hz(void)
-{
- unsigned int ddr_clock = DDR_HZ;
-
- if (ltq_cgu_r32(LTQ_CGU_SYS) & 0x40)
- return ddr_clock >> 1;
- return ddr_clock;
-}
-EXPORT_SYMBOL(ltq_get_fpi_hz);
--- /dev/null
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/io.h>
+#include <linux/export.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+
+#include <asm/time.h>
+#include <asm/irq.h>
+#include <asm/div64.h>
+
+#include <lantiq_soc.h>
+
+#include "../clk.h"
+
+static unsigned int ram_clocks[] = {
+ CLOCK_167M, CLOCK_133M, CLOCK_111M, CLOCK_83M };
+#define DDR_HZ ram_clocks[ltq_cgu_r32(CGU_SYS) & 0x3]
+
+/* legacy xway clock */
+#define CGU_SYS 0x10
+
+/* vr9 clock */
+#define CGU_SYS_VR9 0x0c
+#define CGU_IF_CLK_VR9 0x24
+
+unsigned long ltq_danube_fpi_hz(void)
+{
+ unsigned long ddr_clock = DDR_HZ;
+
+ if (ltq_cgu_r32(CGU_SYS) & 0x40)
+ return ddr_clock >> 1;
+ return ddr_clock;
+}
+
+unsigned long ltq_danube_cpu_hz(void)
+{
+ switch (ltq_cgu_r32(CGU_SYS) & 0xc) {
+ case 0:
+ return CLOCK_333M;
+ case 4:
+ return DDR_HZ;
+ case 8:
+ return DDR_HZ << 1;
+ default:
+ return DDR_HZ >> 1;
+ }
+}
+
+unsigned long ltq_ar9_sys_hz(void)
+{
+ if (((ltq_cgu_r32(CGU_SYS) >> 3) & 0x3) == 0x2)
+ return CLOCK_393M;
+ return CLOCK_333M;
+}
+
+unsigned long ltq_ar9_fpi_hz(void)
+{
+ unsigned long sys = ltq_ar9_sys_hz();
+
+ if (ltq_cgu_r32(CGU_SYS) & BIT(0))
+ return sys;
+ return sys >> 1;
+}
+
+unsigned long ltq_ar9_cpu_hz(void)
+{
+ if (ltq_cgu_r32(CGU_SYS) & BIT(2))
+ return ltq_ar9_fpi_hz();
+ else
+ return ltq_ar9_sys_hz();
+}
+
+unsigned long ltq_vr9_cpu_hz(void)
+{
+ unsigned int cpu_sel;
+ unsigned long clk;
+
+ cpu_sel = (ltq_cgu_r32(CGU_SYS_VR9) >> 4) & 0xf;
+
+ switch (cpu_sel) {
+ case 0:
+ clk = CLOCK_600M;
+ break;
+ case 1:
+ clk = CLOCK_500M;
+ break;
+ case 2:
+ clk = CLOCK_393M;
+ break;
+ case 3:
+ clk = CLOCK_333M;
+ break;
+ case 5:
+ case 6:
+ clk = CLOCK_196_608M;
+ break;
+ case 7:
+ clk = CLOCK_167M;
+ break;
+ case 4:
+ case 8:
+ case 9:
+ clk = CLOCK_125M;
+ break;
+ default:
+ clk = 0;
+ break;
+ }
+
+ return clk;
+}
+
+unsigned long ltq_vr9_fpi_hz(void)
+{
+ unsigned int ocp_sel, cpu_clk;
+ unsigned long clk;
+
+ cpu_clk = ltq_vr9_cpu_hz();
+ ocp_sel = ltq_cgu_r32(CGU_SYS_VR9) & 0x3;
+
+ switch (ocp_sel) {
+ case 0:
+ /* OCP ratio 1 */
+ clk = cpu_clk;
+ break;
+ case 2:
+ /* OCP ratio 2 */
+ clk = cpu_clk / 2;
+ break;
+ case 3:
+ /* OCP ratio 2.5 */
+ clk = (cpu_clk * 2) / 5;
+ break;
+ case 4:
+ /* OCP ratio 3 */
+ clk = cpu_clk / 3;
+ break;
+ default:
+ clk = 0;
+ break;
+ }
+
+ return clk;
+}
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
- */
-
-#include <linux/init.h>
-#include <linux/export.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/mtd/physmap.h>
-#include <linux/kernel.h>
-#include <linux/reboot.h>
-#include <linux/platform_device.h>
-#include <linux/leds.h>
-#include <linux/etherdevice.h>
-#include <linux/time.h>
-#include <linux/io.h>
-#include <linux/gpio.h>
-
-#include <asm/bootinfo.h>
-#include <asm/irq.h>
-
-#include <lantiq_soc.h>
-#include <lantiq_irq.h>
-#include <lantiq_platform.h>
-
-#include "devices.h"
-
-/* gpio */
-static struct resource ltq_gpio_resource[] = {
- {
- .name = "gpio0",
- .start = LTQ_GPIO0_BASE_ADDR,
- .end = LTQ_GPIO0_BASE_ADDR + LTQ_GPIO_SIZE - 1,
- .flags = IORESOURCE_MEM,
- }, {
- .name = "gpio1",
- .start = LTQ_GPIO1_BASE_ADDR,
- .end = LTQ_GPIO1_BASE_ADDR + LTQ_GPIO_SIZE - 1,
- .flags = IORESOURCE_MEM,
- }, {
- .name = "gpio2",
- .start = LTQ_GPIO2_BASE_ADDR,
- .end = LTQ_GPIO2_BASE_ADDR + LTQ_GPIO_SIZE - 1,
- .flags = IORESOURCE_MEM,
- }
-};
-
-void __init ltq_register_gpio(void)
-{
- platform_device_register_simple("ltq_gpio", 0,
- <q_gpio_resource[0], 1);
- platform_device_register_simple("ltq_gpio", 1,
- <q_gpio_resource[1], 1);
-
- /* AR9 and VR9 have an extra gpio block */
- if (ltq_is_ar9() || ltq_is_vr9()) {
- platform_device_register_simple("ltq_gpio", 2,
- <q_gpio_resource[2], 1);
- }
-}
-
-/* serial to parallel conversion */
-static struct resource ltq_stp_resource = {
- .name = "stp",
- .start = LTQ_STP_BASE_ADDR,
- .end = LTQ_STP_BASE_ADDR + LTQ_STP_SIZE - 1,
- .flags = IORESOURCE_MEM,
-};
-
-void __init ltq_register_gpio_stp(void)
-{
- platform_device_register_simple("ltq_stp", 0, <q_stp_resource, 1);
-}
-
-/* asc ports - amazon se has its own serial mapping */
-static struct resource ltq_ase_asc_resources[] = {
- {
- .name = "asc0",
- .start = LTQ_ASC1_BASE_ADDR,
- .end = LTQ_ASC1_BASE_ADDR + LTQ_ASC_SIZE - 1,
- .flags = IORESOURCE_MEM,
- },
- IRQ_RES(tx, LTQ_ASC_ASE_TIR),
- IRQ_RES(rx, LTQ_ASC_ASE_RIR),
- IRQ_RES(err, LTQ_ASC_ASE_EIR),
-};
-
-void __init ltq_register_ase_asc(void)
-{
- platform_device_register_simple("ltq_asc", 0,
- ltq_ase_asc_resources, ARRAY_SIZE(ltq_ase_asc_resources));
-}
-
-/* ethernet */
-static struct resource ltq_etop_resources = {
- .name = "etop",
- .start = LTQ_ETOP_BASE_ADDR,
- .end = LTQ_ETOP_BASE_ADDR + LTQ_ETOP_SIZE - 1,
- .flags = IORESOURCE_MEM,
-};
-
-static struct platform_device ltq_etop = {
- .name = "ltq_etop",
- .resource = <q_etop_resources,
- .num_resources = 1,
-};
-
-void __init
-ltq_register_etop(struct ltq_eth_data *eth)
-{
- if (eth) {
- ltq_etop.dev.platform_data = eth;
- platform_device_register(<q_etop);
- }
-}
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
- */
-
-#ifndef _LTQ_DEVICES_XWAY_H__
-#define _LTQ_DEVICES_XWAY_H__
-
-#include "../devices.h"
-#include <linux/phy.h>
-
-extern void ltq_register_gpio(void);
-extern void ltq_register_gpio_stp(void);
-extern void ltq_register_ase_asc(void);
-extern void ltq_register_etop(struct ltq_eth_data *eth);
-
-#endif
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/dma-mapping.h>
-#include <linux/export.h>
+#include <linux/module.h>
+#include <linux/clk.h>
#include <lantiq_soc.h>
#include <xway_dma.h>
#define ltq_dma_w32_mask(x, y, z) ltq_w32_mask(x, y, \
ltq_dma_membase + (z))
-static struct resource ltq_dma_resource = {
- .name = "dma",
- .start = LTQ_DMA_BASE_ADDR,
- .end = LTQ_DMA_BASE_ADDR + LTQ_DMA_SIZE - 1,
- .flags = IORESOURCE_MEM,
-};
-
static void __iomem *ltq_dma_membase;
void
}
EXPORT_SYMBOL_GPL(ltq_dma_init_port);
-int __init
-ltq_dma_init(void)
+static int __devinit
+ltq_dma_init(struct platform_device *pdev)
{
+ struct clk *clk;
+ struct resource *res;
int i;
- /* insert and request the memory region */
- if (insert_resource(&iomem_resource, <q_dma_resource) < 0)
- panic("Failed to insert dma memory");
-
- if (request_mem_region(ltq_dma_resource.start,
- resource_size(<q_dma_resource), "dma") < 0)
- panic("Failed to request dma memory");
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ panic("Failed to get dma resource");
/* remap dma register range */
- ltq_dma_membase = ioremap_nocache(ltq_dma_resource.start,
- resource_size(<q_dma_resource));
+ ltq_dma_membase = devm_request_and_ioremap(&pdev->dev, res);
if (!ltq_dma_membase)
- panic("Failed to remap dma memory");
+ panic("Failed to remap dma resource");
/* power up and reset the dma engine */
- ltq_pmu_enable(PMU_DMA);
+ clk = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(clk))
+ panic("Failed to get dma clock");
+
+ clk_enable(clk);
ltq_dma_w32_mask(0, DMA_RESET, LTQ_DMA_CTRL);
/* disable all interrupts */
ltq_dma_w32(DMA_POLL | DMA_CLK_DIV4, LTQ_DMA_CPOLL);
ltq_dma_w32_mask(DMA_CHAN_ON, 0, LTQ_DMA_CCTRL);
}
+ dev_info(&pdev->dev, "init done\n");
return 0;
}
-postcore_initcall(ltq_dma_init);
+static const struct of_device_id dma_match[] = {
+ { .compatible = "lantiq,dma-xway" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, dma_match);
+
+static struct platform_driver dma_driver = {
+ .probe = ltq_dma_init,
+ .driver = {
+ .name = "dma-xway",
+ .owner = THIS_MODULE,
+ .of_match_table = dma_match,
+ },
+};
+
+int __init
+dma_init(void)
+{
+ return platform_driver_register(&dma_driver);
+}
+
+postcore_initcall(dma_init);
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * EBU - the external bus unit attaches PCI, NOR and NAND
- *
- * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/ioport.h>
-
-#include <lantiq_soc.h>
-
-/* all access to the ebu must be locked */
-DEFINE_SPINLOCK(ebu_lock);
-EXPORT_SYMBOL_GPL(ebu_lock);
-
-static struct resource ltq_ebu_resource = {
- .name = "ebu",
- .start = LTQ_EBU_BASE_ADDR,
- .end = LTQ_EBU_BASE_ADDR + LTQ_EBU_SIZE - 1,
- .flags = IORESOURCE_MEM,
-};
-
-/* remapped base addr of the clock unit and external bus unit */
-void __iomem *ltq_ebu_membase;
-
-static int __init lantiq_ebu_init(void)
-{
- /* insert and request the memory region */
- if (insert_resource(&iomem_resource, <q_ebu_resource) < 0)
- panic("Failed to insert ebu memory");
-
- if (request_mem_region(ltq_ebu_resource.start,
- resource_size(<q_ebu_resource), "ebu") < 0)
- panic("Failed to request ebu memory");
-
- /* remap ebu register range */
- ltq_ebu_membase = ioremap_nocache(ltq_ebu_resource.start,
- resource_size(<q_ebu_resource));
- if (!ltq_ebu_membase)
- panic("Failed to remap ebu memory");
-
- /* make sure to unprotect the memory region where flash is located */
- ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_BUSCON0) & ~EBU_WRDIS, LTQ_EBU_BUSCON0);
- return 0;
-}
-
-postcore_initcall(lantiq_ebu_init);
static struct ltq_gpio ltq_gpio_port[MAX_PORTS];
-int gpio_to_irq(unsigned int gpio)
-{
- return -EINVAL;
-}
-EXPORT_SYMBOL(gpio_to_irq);
-
-int irq_to_gpio(unsigned int gpio)
-{
- return -EINVAL;
-}
-EXPORT_SYMBOL(irq_to_gpio);
-
int ltq_gpio_request(unsigned int pin, unsigned int alt0,
unsigned int alt1, unsigned int dir, const char *name)
{
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
- */
-
-#include <linux/init.h>
-#include <linux/export.h>
-#include <linux/types.h>
-#include <linux/platform_device.h>
-#include <linux/mutex.h>
-#include <linux/gpio.h>
-#include <linux/io.h>
-
-#include <lantiq_soc.h>
-
-/*
- * By attaching hardware latches to the EBU it is possible to create output
- * only gpios. This driver configures a special memory address, which when
- * written to outputs 16 bit to the latches.
- */
-
-#define LTQ_EBU_BUSCON 0x1e7ff /* 16 bit access, slowest timing */
-#define LTQ_EBU_WP 0x80000000 /* write protect bit */
-
-/* we keep a shadow value of the last value written to the ebu */
-static int ltq_ebu_gpio_shadow = 0x0;
-static void __iomem *ltq_ebu_gpio_membase;
-
-static void ltq_ebu_apply(void)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&ebu_lock, flags);
- ltq_ebu_w32(LTQ_EBU_BUSCON, LTQ_EBU_BUSCON1);
- *((__u16 *)ltq_ebu_gpio_membase) = ltq_ebu_gpio_shadow;
- ltq_ebu_w32(LTQ_EBU_BUSCON | LTQ_EBU_WP, LTQ_EBU_BUSCON1);
- spin_unlock_irqrestore(&ebu_lock, flags);
-}
-
-static void ltq_ebu_set(struct gpio_chip *chip, unsigned offset, int value)
-{
- if (value)
- ltq_ebu_gpio_shadow |= (1 << offset);
- else
- ltq_ebu_gpio_shadow &= ~(1 << offset);
- ltq_ebu_apply();
-}
-
-static int ltq_ebu_direction_output(struct gpio_chip *chip, unsigned offset,
- int value)
-{
- ltq_ebu_set(chip, offset, value);
-
- return 0;
-}
-
-static struct gpio_chip ltq_ebu_chip = {
- .label = "ltq_ebu",
- .direction_output = ltq_ebu_direction_output,
- .set = ltq_ebu_set,
- .base = 72,
- .ngpio = 16,
- .can_sleep = 1,
- .owner = THIS_MODULE,
-};
-
-static int ltq_ebu_probe(struct platform_device *pdev)
-{
- int ret = 0;
- struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
- if (!res) {
- dev_err(&pdev->dev, "failed to get memory resource\n");
- return -ENOENT;
- }
-
- res = devm_request_mem_region(&pdev->dev, res->start,
- resource_size(res), dev_name(&pdev->dev));
- if (!res) {
- dev_err(&pdev->dev, "failed to request memory resource\n");
- return -EBUSY;
- }
-
- ltq_ebu_gpio_membase = devm_ioremap_nocache(&pdev->dev, res->start,
- resource_size(res));
- if (!ltq_ebu_gpio_membase) {
- dev_err(&pdev->dev, "Failed to ioremap mem region\n");
- return -ENOMEM;
- }
-
- /* grab the default shadow value passed form the platform code */
- ltq_ebu_gpio_shadow = (unsigned int) pdev->dev.platform_data;
-
- /* tell the ebu controller which memory address we will be using */
- ltq_ebu_w32(pdev->resource->start | 0x1, LTQ_EBU_ADDRSEL1);
-
- /* write protect the region */
- ltq_ebu_w32(LTQ_EBU_BUSCON | LTQ_EBU_WP, LTQ_EBU_BUSCON1);
-
- ret = gpiochip_add(<q_ebu_chip);
- if (!ret)
- ltq_ebu_apply();
- return ret;
-}
-
-static struct platform_driver ltq_ebu_driver = {
- .probe = ltq_ebu_probe,
- .driver = {
- .name = "ltq_ebu",
- .owner = THIS_MODULE,
- },
-};
-
-static int __init ltq_ebu_init(void)
-{
- int ret = platform_driver_register(<q_ebu_driver);
-
- if (ret)
- pr_info("ltq_ebu : Error registering platform driver!");
- return ret;
-}
-
-postcore_initcall(ltq_ebu_init);
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Copyright (C) 2007 John Crispin <blogic@openwrt.org>
- *
- */
-
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/export.h>
-#include <linux/types.h>
-#include <linux/platform_device.h>
-#include <linux/mutex.h>
-#include <linux/io.h>
-#include <linux/gpio.h>
-
-#include <lantiq_soc.h>
-
-#define LTQ_STP_CON0 0x00
-#define LTQ_STP_CON1 0x04
-#define LTQ_STP_CPU0 0x08
-#define LTQ_STP_CPU1 0x0C
-#define LTQ_STP_AR 0x10
-
-#define LTQ_STP_CON_SWU (1 << 31)
-#define LTQ_STP_2HZ 0
-#define LTQ_STP_4HZ (1 << 23)
-#define LTQ_STP_8HZ (2 << 23)
-#define LTQ_STP_10HZ (3 << 23)
-#define LTQ_STP_SPEED_MASK (0xf << 23)
-#define LTQ_STP_UPD_FPI (1 << 31)
-#define LTQ_STP_UPD_MASK (3 << 30)
-#define LTQ_STP_ADSL_SRC (3 << 24)
-
-#define LTQ_STP_GROUP0 (1 << 0)
-
-#define LTQ_STP_RISING 0
-#define LTQ_STP_FALLING (1 << 26)
-#define LTQ_STP_EDGE_MASK (1 << 26)
-
-#define ltq_stp_r32(reg) __raw_readl(ltq_stp_membase + reg)
-#define ltq_stp_w32(val, reg) __raw_writel(val, ltq_stp_membase + reg)
-#define ltq_stp_w32_mask(clear, set, reg) \
- ltq_w32((ltq_r32(ltq_stp_membase + reg) & ~(clear)) | (set), \
- ltq_stp_membase + (reg))
-
-static int ltq_stp_shadow = 0xffff;
-static void __iomem *ltq_stp_membase;
-
-static void ltq_stp_set(struct gpio_chip *chip, unsigned offset, int value)
-{
- if (value)
- ltq_stp_shadow |= (1 << offset);
- else
- ltq_stp_shadow &= ~(1 << offset);
- ltq_stp_w32(ltq_stp_shadow, LTQ_STP_CPU0);
-}
-
-static int ltq_stp_direction_output(struct gpio_chip *chip, unsigned offset,
- int value)
-{
- ltq_stp_set(chip, offset, value);
-
- return 0;
-}
-
-static struct gpio_chip ltq_stp_chip = {
- .label = "ltq_stp",
- .direction_output = ltq_stp_direction_output,
- .set = ltq_stp_set,
- .base = 48,
- .ngpio = 24,
- .can_sleep = 1,
- .owner = THIS_MODULE,
-};
-
-static int ltq_stp_hw_init(void)
-{
- /* the 3 pins used to control the external stp */
- ltq_gpio_request(4, 1, 0, 1, "stp-st");
- ltq_gpio_request(5, 1, 0, 1, "stp-d");
- ltq_gpio_request(6, 1, 0, 1, "stp-sh");
-
- /* sane defaults */
- ltq_stp_w32(0, LTQ_STP_AR);
- ltq_stp_w32(0, LTQ_STP_CPU0);
- ltq_stp_w32(0, LTQ_STP_CPU1);
- ltq_stp_w32(LTQ_STP_CON_SWU, LTQ_STP_CON0);
- ltq_stp_w32(0, LTQ_STP_CON1);
-
- /* rising or falling edge */
- ltq_stp_w32_mask(LTQ_STP_EDGE_MASK, LTQ_STP_FALLING, LTQ_STP_CON0);
-
- /* per default stp 15-0 are set */
- ltq_stp_w32_mask(0, LTQ_STP_GROUP0, LTQ_STP_CON1);
-
- /* stp are update periodically by the FPI bus */
- ltq_stp_w32_mask(LTQ_STP_UPD_MASK, LTQ_STP_UPD_FPI, LTQ_STP_CON1);
-
- /* set stp update speed */
- ltq_stp_w32_mask(LTQ_STP_SPEED_MASK, LTQ_STP_8HZ, LTQ_STP_CON1);
-
- /* tell the hardware that pin (led) 0 and 1 are controlled
- * by the dsl arc
- */
- ltq_stp_w32_mask(0, LTQ_STP_ADSL_SRC, LTQ_STP_CON0);
-
- ltq_pmu_enable(PMU_LED);
- return 0;
-}
-
-static int __devinit ltq_stp_probe(struct platform_device *pdev)
-{
- struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- int ret = 0;
-
- if (!res)
- return -ENOENT;
- res = devm_request_mem_region(&pdev->dev, res->start,
- resource_size(res), dev_name(&pdev->dev));
- if (!res) {
- dev_err(&pdev->dev, "failed to request STP memory\n");
- return -EBUSY;
- }
- ltq_stp_membase = devm_ioremap_nocache(&pdev->dev, res->start,
- resource_size(res));
- if (!ltq_stp_membase) {
- dev_err(&pdev->dev, "failed to remap STP memory\n");
- return -ENOMEM;
- }
- ret = gpiochip_add(<q_stp_chip);
- if (!ret)
- ret = ltq_stp_hw_init();
-
- return ret;
-}
-
-static struct platform_driver ltq_stp_driver = {
- .probe = ltq_stp_probe,
- .driver = {
- .name = "ltq_stp",
- .owner = THIS_MODULE,
- },
-};
-
-int __init ltq_stp_init(void)
-{
- int ret = platform_driver_register(<q_stp_driver);
-
- if (ret)
- pr_info("ltq_stp: error registering platform driver");
- return ret;
-}
-
-postcore_initcall(ltq_stp_init);
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
- */
-
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/partitions.h>
-#include <linux/mtd/physmap.h>
-#include <linux/input.h>
-
-#include <lantiq.h>
-
-#include "../machtypes.h"
-#include "devices.h"
-
-static struct mtd_partition easy50601_partitions[] = {
- {
- .name = "uboot",
- .offset = 0x0,
- .size = 0x10000,
- },
- {
- .name = "uboot_env",
- .offset = 0x10000,
- .size = 0x10000,
- },
- {
- .name = "linux",
- .offset = 0x20000,
- .size = 0xE0000,
- },
- {
- .name = "rootfs",
- .offset = 0x100000,
- .size = 0x300000,
- },
-};
-
-static struct physmap_flash_data easy50601_flash_data = {
- .nr_parts = ARRAY_SIZE(easy50601_partitions),
- .parts = easy50601_partitions,
-};
-
-static void __init easy50601_init(void)
-{
- ltq_register_nor(&easy50601_flash_data);
-}
-
-MIPS_MACHINE(LTQ_MACH_EASY50601,
- "EASY50601",
- "EASY50601 Eval Board",
- easy50601_init);
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
- */
-
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/partitions.h>
-#include <linux/mtd/physmap.h>
-#include <linux/input.h>
-#include <linux/phy.h>
-
-#include <lantiq_soc.h>
-#include <irq.h>
-
-#include "../machtypes.h"
-#include "devices.h"
-
-static struct mtd_partition easy50712_partitions[] = {
- {
- .name = "uboot",
- .offset = 0x0,
- .size = 0x10000,
- },
- {
- .name = "uboot_env",
- .offset = 0x10000,
- .size = 0x10000,
- },
- {
- .name = "linux",
- .offset = 0x20000,
- .size = 0xe0000,
- },
- {
- .name = "rootfs",
- .offset = 0x100000,
- .size = 0x300000,
- },
-};
-
-static struct physmap_flash_data easy50712_flash_data = {
- .nr_parts = ARRAY_SIZE(easy50712_partitions),
- .parts = easy50712_partitions,
-};
-
-static struct ltq_pci_data ltq_pci_data = {
- .clock = PCI_CLOCK_INT,
- .gpio = PCI_GNT1 | PCI_REQ1,
- .irq = {
- [14] = INT_NUM_IM0_IRL0 + 22,
- },
-};
-
-static struct ltq_eth_data ltq_eth_data = {
- .mii_mode = PHY_INTERFACE_MODE_MII,
-};
-
-static void __init easy50712_init(void)
-{
- ltq_register_gpio_stp();
- ltq_register_nor(&easy50712_flash_data);
- ltq_register_pci(<q_pci_data);
- ltq_register_etop(<q_eth_data);
-}
-
-MIPS_MACHINE(LTQ_MACH_EASY50712,
- "EASY50712",
- "EASY50712 Eval Board",
- easy50712_init);
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/ioport.h>
-
-#include <lantiq_soc.h>
-
-/* PMU - the power management unit allows us to turn part of the core
- * on and off
- */
-
-/* the enable / disable registers */
-#define LTQ_PMU_PWDCR 0x1C
-#define LTQ_PMU_PWDSR 0x20
-
-#define ltq_pmu_w32(x, y) ltq_w32((x), ltq_pmu_membase + (y))
-#define ltq_pmu_r32(x) ltq_r32(ltq_pmu_membase + (x))
-
-static struct resource ltq_pmu_resource = {
- .name = "pmu",
- .start = LTQ_PMU_BASE_ADDR,
- .end = LTQ_PMU_BASE_ADDR + LTQ_PMU_SIZE - 1,
- .flags = IORESOURCE_MEM,
-};
-
-static void __iomem *ltq_pmu_membase;
-
-void ltq_pmu_enable(unsigned int module)
-{
- int err = 1000000;
-
- ltq_pmu_w32(ltq_pmu_r32(LTQ_PMU_PWDCR) & ~module, LTQ_PMU_PWDCR);
- do {} while (--err && (ltq_pmu_r32(LTQ_PMU_PWDSR) & module));
-
- if (!err)
- panic("activating PMU module failed!");
-}
-EXPORT_SYMBOL(ltq_pmu_enable);
-
-void ltq_pmu_disable(unsigned int module)
-{
- ltq_pmu_w32(ltq_pmu_r32(LTQ_PMU_PWDCR) | module, LTQ_PMU_PWDCR);
-}
-EXPORT_SYMBOL(ltq_pmu_disable);
-
-int __init ltq_pmu_init(void)
-{
- if (insert_resource(&iomem_resource, <q_pmu_resource) < 0)
- panic("Failed to insert pmu memory");
-
- if (request_mem_region(ltq_pmu_resource.start,
- resource_size(<q_pmu_resource), "pmu") < 0)
- panic("Failed to request pmu memory");
-
- ltq_pmu_membase = ioremap_nocache(ltq_pmu_resource.start,
- resource_size(<q_pmu_resource));
- if (!ltq_pmu_membase)
- panic("Failed to remap pmu memory");
- return 0;
-}
-
-core_initcall(ltq_pmu_init);
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
- */
-
-#include <linux/export.h>
-#include <linux/clk.h>
-#include <asm/bootinfo.h>
-#include <asm/time.h>
-
-#include <lantiq_soc.h>
-
-#include "../prom.h"
-
-#define SOC_AMAZON_SE "Amazon_SE"
-
-#define PART_SHIFT 12
-#define PART_MASK 0x0FFFFFFF
-#define REV_SHIFT 28
-#define REV_MASK 0xF0000000
-
-void __init ltq_soc_detect(struct ltq_soc_info *i)
-{
- i->partnum = (ltq_r32(LTQ_MPS_CHIPID) & PART_MASK) >> PART_SHIFT;
- i->rev = (ltq_r32(LTQ_MPS_CHIPID) & REV_MASK) >> REV_SHIFT;
- switch (i->partnum) {
- case SOC_ID_AMAZON_SE:
- i->name = SOC_AMAZON_SE;
- i->type = SOC_TYPE_AMAZON_SE;
- break;
-
- default:
- unreachable();
- break;
- }
-}
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
- */
-
-#include <linux/export.h>
-#include <linux/clk.h>
-#include <asm/bootinfo.h>
-#include <asm/time.h>
-
-#include <lantiq_soc.h>
-
-#include "../prom.h"
-
-#define SOC_DANUBE "Danube"
-#define SOC_TWINPASS "Twinpass"
-#define SOC_AR9 "AR9"
-
-#define PART_SHIFT 12
-#define PART_MASK 0x0FFFFFFF
-#define REV_SHIFT 28
-#define REV_MASK 0xF0000000
-
-void __init ltq_soc_detect(struct ltq_soc_info *i)
-{
- i->partnum = (ltq_r32(LTQ_MPS_CHIPID) & PART_MASK) >> PART_SHIFT;
- i->rev = (ltq_r32(LTQ_MPS_CHIPID) & REV_MASK) >> REV_SHIFT;
- switch (i->partnum) {
- case SOC_ID_DANUBE1:
- case SOC_ID_DANUBE2:
- i->name = SOC_DANUBE;
- i->type = SOC_TYPE_DANUBE;
- break;
-
- case SOC_ID_TWINPASS:
- i->name = SOC_TWINPASS;
- i->type = SOC_TYPE_DANUBE;
- break;
-
- case SOC_ID_ARX188:
- case SOC_ID_ARX168:
- case SOC_ID_ARX182:
- i->name = SOC_AR9;
- i->type = SOC_TYPE_AR9;
- break;
-
- default:
- unreachable();
- break;
- }
-}
--- /dev/null
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/export.h>
+#include <linux/clk.h>
+#include <asm/bootinfo.h>
+#include <asm/time.h>
+
+#include <lantiq_soc.h>
+
+#include "../prom.h"
+
+#define SOC_DANUBE "Danube"
+#define SOC_TWINPASS "Twinpass"
+#define SOC_AMAZON_SE "Amazon_SE"
+#define SOC_AR9 "AR9"
+#define SOC_GR9 "GR9"
+#define SOC_VR9 "VR9"
+
+#define COMP_DANUBE "lantiq,danube"
+#define COMP_TWINPASS "lantiq,twinpass"
+#define COMP_AMAZON_SE "lantiq,ase"
+#define COMP_AR9 "lantiq,ar9"
+#define COMP_GR9 "lantiq,gr9"
+#define COMP_VR9 "lantiq,vr9"
+
+#define PART_SHIFT 12
+#define PART_MASK 0x0FFFFFFF
+#define REV_SHIFT 28
+#define REV_MASK 0xF0000000
+
+void __init ltq_soc_detect(struct ltq_soc_info *i)
+{
+ i->partnum = (ltq_r32(LTQ_MPS_CHIPID) & PART_MASK) >> PART_SHIFT;
+ i->rev = (ltq_r32(LTQ_MPS_CHIPID) & REV_MASK) >> REV_SHIFT;
+ sprintf(i->rev_type, "1.%d", i->rev);
+ switch (i->partnum) {
+ case SOC_ID_DANUBE1:
+ case SOC_ID_DANUBE2:
+ i->name = SOC_DANUBE;
+ i->type = SOC_TYPE_DANUBE;
+ i->compatible = COMP_DANUBE;
+ break;
+
+ case SOC_ID_TWINPASS:
+ i->name = SOC_TWINPASS;
+ i->type = SOC_TYPE_DANUBE;
+ i->compatible = COMP_TWINPASS;
+ break;
+
+ case SOC_ID_ARX188:
+ case SOC_ID_ARX168_1:
+ case SOC_ID_ARX168_2:
+ case SOC_ID_ARX182:
+ i->name = SOC_AR9;
+ i->type = SOC_TYPE_AR9;
+ i->compatible = COMP_AR9;
+ break;
+
+ case SOC_ID_GRX188:
+ case SOC_ID_GRX168:
+ i->name = SOC_GR9;
+ i->type = SOC_TYPE_AR9;
+ i->compatible = COMP_GR9;
+ break;
+
+ case SOC_ID_AMAZON_SE_1:
+ case SOC_ID_AMAZON_SE_2:
+#ifdef CONFIG_PCI
+ panic("ase is only supported for non pci kernels");
+#endif
+ i->name = SOC_AMAZON_SE;
+ i->type = SOC_TYPE_AMAZON_SE;
+ i->compatible = COMP_AMAZON_SE;
+ break;
+
+ case SOC_ID_VRX282:
+ case SOC_ID_VRX268:
+ case SOC_ID_VRX288:
+ i->name = SOC_VR9;
+ i->type = SOC_TYPE_VR9;
+ i->compatible = COMP_VR9;
+ break;
+
+ case SOC_ID_GRX268:
+ case SOC_ID_GRX288:
+ i->name = SOC_GR9;
+ i->type = SOC_TYPE_VR9;
+ i->compatible = COMP_GR9;
+ break;
+
+ case SOC_ID_VRX268_2:
+ case SOC_ID_VRX288_2:
+ i->name = SOC_VR9;
+ i->type = SOC_TYPE_VR9_2;
+ i->compatible = COMP_VR9;
+ break;
+
+ case SOC_ID_GRX282_2:
+ case SOC_ID_GRX288_2:
+ i->name = SOC_GR9;
+ i->type = SOC_TYPE_VR9_2;
+ i->compatible = COMP_GR9;
+ break;
+
+ default:
+ unreachable();
+ break;
+ }
+}
#include <linux/ioport.h>
#include <linux/pm.h>
#include <linux/export.h>
+#include <linux/delay.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+
#include <asm/reboot.h>
#include <lantiq_soc.h>
+#include "../prom.h"
+
#define ltq_rcu_w32(x, y) ltq_w32((x), ltq_rcu_membase + (y))
#define ltq_rcu_r32(x) ltq_r32(ltq_rcu_membase + (x))
-/* register definitions */
-#define LTQ_RCU_RST 0x0010
-#define LTQ_RCU_RST_ALL 0x40000000
-
-#define LTQ_RCU_RST_STAT 0x0014
-#define LTQ_RCU_STAT_SHIFT 26
+/* reset request register */
+#define RCU_RST_REQ 0x0010
+/* reset status register */
+#define RCU_RST_STAT 0x0014
-static struct resource ltq_rcu_resource = {
- .name = "rcu",
- .start = LTQ_RCU_BASE_ADDR,
- .end = LTQ_RCU_BASE_ADDR + LTQ_RCU_SIZE - 1,
- .flags = IORESOURCE_MEM,
-};
+/* reboot bit */
+#define RCU_RD_SRST BIT(30)
+/* reset cause */
+#define RCU_STAT_SHIFT 26
+/* boot selection */
+#define RCU_BOOT_SEL_SHIFT 26
+#define RCU_BOOT_SEL_MASK 0x7
/* remapped base addr of the reset control unit */
static void __iomem *ltq_rcu_membase;
/* This function is used by the watchdog driver */
int ltq_reset_cause(void)
{
- u32 val = ltq_rcu_r32(LTQ_RCU_RST_STAT);
- return val >> LTQ_RCU_STAT_SHIFT;
+ u32 val = ltq_rcu_r32(RCU_RST_STAT);
+ return val >> RCU_STAT_SHIFT;
}
EXPORT_SYMBOL_GPL(ltq_reset_cause);
+/* allow platform code to find out what source we booted from */
+unsigned char ltq_boot_select(void)
+{
+ u32 val = ltq_rcu_r32(RCU_RST_STAT);
+ return (val >> RCU_BOOT_SEL_SHIFT) & RCU_BOOT_SEL_MASK;
+}
+
+/* reset a io domain for u micro seconds */
+void ltq_reset_once(unsigned int module, ulong u)
+{
+ ltq_rcu_w32(ltq_rcu_r32(RCU_RST_REQ) | module, RCU_RST_REQ);
+ udelay(u);
+ ltq_rcu_w32(ltq_rcu_r32(RCU_RST_REQ) & ~module, RCU_RST_REQ);
+}
+
static void ltq_machine_restart(char *command)
{
- pr_notice("System restart\n");
local_irq_disable();
- ltq_rcu_w32(ltq_rcu_r32(LTQ_RCU_RST) | LTQ_RCU_RST_ALL, LTQ_RCU_RST);
+ ltq_rcu_w32(ltq_rcu_r32(RCU_RST_REQ) | RCU_RD_SRST, RCU_RST_REQ);
unreachable();
}
static void ltq_machine_halt(void)
{
- pr_notice("System halted.\n");
local_irq_disable();
unreachable();
}
static void ltq_machine_power_off(void)
{
- pr_notice("Please turn off the power now.\n");
local_irq_disable();
unreachable();
}
static int __init mips_reboot_setup(void)
{
- /* insert and request the memory region */
- if (insert_resource(&iomem_resource, <q_rcu_resource) < 0)
- panic("Failed to insert rcu memory");
+ struct resource res;
+ struct device_node *np =
+ of_find_compatible_node(NULL, NULL, "lantiq,rcu-xway");
+
+ /* check if all the reset register range is available */
+ if (!np)
+ panic("Failed to load reset resources from devicetree");
+
+ if (of_address_to_resource(np, 0, &res))
+ panic("Failed to get rcu memory range");
- if (request_mem_region(ltq_rcu_resource.start,
- resource_size(<q_rcu_resource), "rcu") < 0)
- panic("Failed to request rcu memory");
+ if (request_mem_region(res.start, resource_size(&res), res.name) < 0)
+ pr_err("Failed to request rcu memory");
- /* remap rcu register range */
- ltq_rcu_membase = ioremap_nocache(ltq_rcu_resource.start,
- resource_size(<q_rcu_resource));
+ ltq_rcu_membase = ioremap_nocache(res.start, resource_size(&res));
if (!ltq_rcu_membase)
- panic("Failed to remap rcu memory");
+ panic("Failed to remap core memory");
_machine_restart = ltq_machine_restart;
_machine_halt = ltq_machine_halt;
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Copyright (C) 2011 John Crispin <blogic@openwrt.org>
- */
-
-#include <lantiq_soc.h>
-
-#include "../prom.h"
-#include "devices.h"
-
-void __init ltq_soc_setup(void)
-{
- ltq_register_ase_asc();
- ltq_register_gpio();
- ltq_register_wdt();
-}
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Copyright (C) 2011 John Crispin <blogic@openwrt.org>
- */
-
-#include <lantiq_soc.h>
-
-#include "../prom.h"
-#include "devices.h"
-
-void __init ltq_soc_setup(void)
-{
- ltq_register_asc(0);
- ltq_register_asc(1);
- ltq_register_gpio();
- ltq_register_wdt();
-}
--- /dev/null
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Copyright (C) 2011-2012 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/ioport.h>
+#include <linux/export.h>
+#include <linux/clkdev.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/of_address.h>
+
+#include <lantiq_soc.h>
+
+#include "../clk.h"
+#include "../prom.h"
+
+/* clock control register */
+#define CGU_IFCCR 0x0018
+/* system clock register */
+#define CGU_SYS 0x0010
+/* pci control register */
+#define CGU_PCICR 0x0034
+/* ephy configuration register */
+#define CGU_EPHY 0x10
+/* power control register */
+#define PMU_PWDCR 0x1C
+/* power status register */
+#define PMU_PWDSR 0x20
+/* power control register */
+#define PMU_PWDCR1 0x24
+/* power status register */
+#define PMU_PWDSR1 0x28
+/* power control register */
+#define PWDCR(x) ((x) ? (PMU_PWDCR1) : (PMU_PWDCR))
+/* power status register */
+#define PWDSR(x) ((x) ? (PMU_PWDSR1) : (PMU_PWDSR))
+
+/* clock gates that we can en/disable */
+#define PMU_USB0_P BIT(0)
+#define PMU_PCI BIT(4)
+#define PMU_DMA BIT(5)
+#define PMU_USB0 BIT(6)
+#define PMU_ASC0 BIT(7)
+#define PMU_EPHY BIT(7) /* ase */
+#define PMU_SPI BIT(8)
+#define PMU_DFE BIT(9)
+#define PMU_EBU BIT(10)
+#define PMU_STP BIT(11)
+#define PMU_GPT BIT(12)
+#define PMU_AHBS BIT(13) /* vr9 */
+#define PMU_FPI BIT(14)
+#define PMU_AHBM BIT(15)
+#define PMU_ASC1 BIT(17)
+#define PMU_PPE_QSB BIT(18)
+#define PMU_PPE_SLL01 BIT(19)
+#define PMU_PPE_TC BIT(21)
+#define PMU_PPE_EMA BIT(22)
+#define PMU_PPE_DPLUM BIT(23)
+#define PMU_PPE_DPLUS BIT(24)
+#define PMU_USB1_P BIT(26)
+#define PMU_USB1 BIT(27)
+#define PMU_SWITCH BIT(28)
+#define PMU_PPE_TOP BIT(29)
+#define PMU_GPHY BIT(30)
+#define PMU_PCIE_CLK BIT(31)
+
+#define PMU1_PCIE_PHY BIT(0)
+#define PMU1_PCIE_CTL BIT(1)
+#define PMU1_PCIE_PDI BIT(4)
+#define PMU1_PCIE_MSI BIT(5)
+
+#define pmu_w32(x, y) ltq_w32((x), pmu_membase + (y))
+#define pmu_r32(x) ltq_r32(pmu_membase + (x))
+
+static void __iomem *pmu_membase;
+void __iomem *ltq_cgu_membase;
+void __iomem *ltq_ebu_membase;
+
+/* legacy function kept alive to ease clkdev transition */
+void ltq_pmu_enable(unsigned int module)
+{
+ int err = 1000000;
+
+ pmu_w32(pmu_r32(PMU_PWDCR) & ~module, PMU_PWDCR);
+ do {} while (--err && (pmu_r32(PMU_PWDSR) & module));
+
+ if (!err)
+ panic("activating PMU module failed!");
+}
+EXPORT_SYMBOL(ltq_pmu_enable);
+
+/* legacy function kept alive to ease clkdev transition */
+void ltq_pmu_disable(unsigned int module)
+{
+ pmu_w32(pmu_r32(PMU_PWDCR) | module, PMU_PWDCR);
+}
+EXPORT_SYMBOL(ltq_pmu_disable);
+
+/* enable a hw clock */
+static int cgu_enable(struct clk *clk)
+{
+ ltq_cgu_w32(ltq_cgu_r32(CGU_IFCCR) | clk->bits, CGU_IFCCR);
+ return 0;
+}
+
+/* disable a hw clock */
+static void cgu_disable(struct clk *clk)
+{
+ ltq_cgu_w32(ltq_cgu_r32(CGU_IFCCR) & ~clk->bits, CGU_IFCCR);
+}
+
+/* enable a clock gate */
+static int pmu_enable(struct clk *clk)
+{
+ int retry = 1000000;
+
+ pmu_w32(pmu_r32(PWDCR(clk->module)) & ~clk->bits,
+ PWDCR(clk->module));
+ do {} while (--retry && (pmu_r32(PWDSR(clk->module)) & clk->bits));
+
+ if (!retry)
+ panic("activating PMU module failed!\n");
+
+ return 0;
+}
+
+/* disable a clock gate */
+static void pmu_disable(struct clk *clk)
+{
+ pmu_w32(pmu_r32(PWDCR(clk->module)) | clk->bits,
+ PWDCR(clk->module));
+}
+
+/* the pci enable helper */
+static int pci_enable(struct clk *clk)
+{
+ unsigned int ifccr = ltq_cgu_r32(CGU_IFCCR);
+ /* set bus clock speed */
+ if (of_machine_is_compatible("lantiq,ar9")) {
+ ifccr &= ~0x1f00000;
+ if (clk->rate == CLOCK_33M)
+ ifccr |= 0xe00000;
+ else
+ ifccr |= 0x700000; /* 62.5M */
+ } else {
+ ifccr &= ~0xf00000;
+ if (clk->rate == CLOCK_33M)
+ ifccr |= 0x800000;
+ else
+ ifccr |= 0x400000; /* 62.5M */
+ }
+ ltq_cgu_w32(ifccr, CGU_IFCCR);
+ pmu_enable(clk);
+ return 0;
+}
+
+/* enable the external clock as a source */
+static int pci_ext_enable(struct clk *clk)
+{
+ ltq_cgu_w32(ltq_cgu_r32(CGU_IFCCR) & ~(1 << 16),
+ CGU_IFCCR);
+ ltq_cgu_w32((1 << 30), CGU_PCICR);
+ return 0;
+}
+
+/* disable the external clock as a source */
+static void pci_ext_disable(struct clk *clk)
+{
+ ltq_cgu_w32(ltq_cgu_r32(CGU_IFCCR) | (1 << 16),
+ CGU_IFCCR);
+ ltq_cgu_w32((1 << 31) | (1 << 30), CGU_PCICR);
+}
+
+/* enable a clockout source */
+static int clkout_enable(struct clk *clk)
+{
+ int i;
+
+ /* get the correct rate */
+ for (i = 0; i < 4; i++) {
+ if (clk->rates[i] == clk->rate) {
+ int shift = 14 - (2 * clk->module);
+ unsigned int ifccr = ltq_cgu_r32(CGU_IFCCR);
+
+ ifccr &= ~(3 << shift);
+ ifccr |= i << shift;
+ ltq_cgu_w32(ifccr, CGU_IFCCR);
+ return 0;
+ }
+ }
+ return -1;
+}
+
+/* manage the clock gates via PMU */
+static void clkdev_add_pmu(const char *dev, const char *con,
+ unsigned int module, unsigned int bits)
+{
+ struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL);
+
+ clk->cl.dev_id = dev;
+ clk->cl.con_id = con;
+ clk->cl.clk = clk;
+ clk->enable = pmu_enable;
+ clk->disable = pmu_disable;
+ clk->module = module;
+ clk->bits = bits;
+ clkdev_add(&clk->cl);
+}
+
+/* manage the clock generator */
+static void clkdev_add_cgu(const char *dev, const char *con,
+ unsigned int bits)
+{
+ struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL);
+
+ clk->cl.dev_id = dev;
+ clk->cl.con_id = con;
+ clk->cl.clk = clk;
+ clk->enable = cgu_enable;
+ clk->disable = cgu_disable;
+ clk->bits = bits;
+ clkdev_add(&clk->cl);
+}
+
+/* pci needs its own enable function as the setup is a bit more complex */
+static unsigned long valid_pci_rates[] = {CLOCK_33M, CLOCK_62_5M, 0};
+
+static void clkdev_add_pci(void)
+{
+ struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL);
+ struct clk *clk_ext = kzalloc(sizeof(struct clk), GFP_KERNEL);
+
+ /* main pci clock */
+ clk->cl.dev_id = "17000000.pci";
+ clk->cl.con_id = NULL;
+ clk->cl.clk = clk;
+ clk->rate = CLOCK_33M;
+ clk->rates = valid_pci_rates;
+ clk->enable = pci_enable;
+ clk->disable = pmu_disable;
+ clk->module = 0;
+ clk->bits = PMU_PCI;
+ clkdev_add(&clk->cl);
+
+ /* use internal/external bus clock */
+ clk_ext->cl.dev_id = "17000000.pci";
+ clk_ext->cl.con_id = "external";
+ clk_ext->cl.clk = clk_ext;
+ clk_ext->enable = pci_ext_enable;
+ clk_ext->disable = pci_ext_disable;
+ clkdev_add(&clk_ext->cl);
+}
+
+/* xway socs can generate clocks on gpio pins */
+static unsigned long valid_clkout_rates[4][5] = {
+ {CLOCK_32_768K, CLOCK_1_536M, CLOCK_2_5M, CLOCK_12M, 0},
+ {CLOCK_40M, CLOCK_12M, CLOCK_24M, CLOCK_48M, 0},
+ {CLOCK_25M, CLOCK_40M, CLOCK_30M, CLOCK_60M, 0},
+ {CLOCK_12M, CLOCK_50M, CLOCK_32_768K, CLOCK_25M, 0},
+};
+
+static void clkdev_add_clkout(void)
+{
+ int i;
+
+ for (i = 0; i < 4; i++) {
+ struct clk *clk;
+ char *name;
+
+ name = kzalloc(sizeof("clkout0"), GFP_KERNEL);
+ sprintf(name, "clkout%d", i);
+
+ clk = kzalloc(sizeof(struct clk), GFP_KERNEL);
+ clk->cl.dev_id = "1f103000.cgu";
+ clk->cl.con_id = name;
+ clk->cl.clk = clk;
+ clk->rate = 0;
+ clk->rates = valid_clkout_rates[i];
+ clk->enable = clkout_enable;
+ clk->module = i;
+ clkdev_add(&clk->cl);
+ }
+}
+
+/* bring up all register ranges that we need for basic system control */
+void __init ltq_soc_init(void)
+{
+ struct resource res_pmu, res_cgu, res_ebu;
+ struct device_node *np_pmu =
+ of_find_compatible_node(NULL, NULL, "lantiq,pmu-xway");
+ struct device_node *np_cgu =
+ of_find_compatible_node(NULL, NULL, "lantiq,cgu-xway");
+ struct device_node *np_ebu =
+ of_find_compatible_node(NULL, NULL, "lantiq,ebu-xway");
+
+ /* check if all the core register ranges are available */
+ if (!np_pmu || !np_cgu || !np_ebu)
+ panic("Failed to load core nodess from devicetree");
+
+ if (of_address_to_resource(np_pmu, 0, &res_pmu) ||
+ of_address_to_resource(np_cgu, 0, &res_cgu) ||
+ of_address_to_resource(np_ebu, 0, &res_ebu))
+ panic("Failed to get core resources");
+
+ if ((request_mem_region(res_pmu.start, resource_size(&res_pmu),
+ res_pmu.name) < 0) ||
+ (request_mem_region(res_cgu.start, resource_size(&res_cgu),
+ res_cgu.name) < 0) ||
+ (request_mem_region(res_ebu.start, resource_size(&res_ebu),
+ res_ebu.name) < 0))
+ pr_err("Failed to request core reources");
+
+ pmu_membase = ioremap_nocache(res_pmu.start, resource_size(&res_pmu));
+ ltq_cgu_membase = ioremap_nocache(res_cgu.start,
+ resource_size(&res_cgu));
+ ltq_ebu_membase = ioremap_nocache(res_ebu.start,
+ resource_size(&res_ebu));
+ if (!pmu_membase || !ltq_cgu_membase || !ltq_ebu_membase)
+ panic("Failed to remap core resources");
+
+ /* make sure to unprotect the memory region where flash is located */
+ ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_BUSCON0) & ~EBU_WRDIS, LTQ_EBU_BUSCON0);
+
+ /* add our generic xway clocks */
+ clkdev_add_pmu("10000000.fpi", NULL, 0, PMU_FPI);
+ clkdev_add_pmu("1e100400.serial", NULL, 0, PMU_ASC0);
+ clkdev_add_pmu("1e100a00.gptu", NULL, 0, PMU_GPT);
+ clkdev_add_pmu("1e100bb0.stp", NULL, 0, PMU_STP);
+ clkdev_add_pmu("1e104100.dma", NULL, 0, PMU_DMA);
+ clkdev_add_pmu("1e100800.spi", NULL, 0, PMU_SPI);
+ clkdev_add_pmu("1e105300.ebu", NULL, 0, PMU_EBU);
+ clkdev_add_clkout();
+
+ /* add the soc dependent clocks */
+ if (!of_machine_is_compatible("lantiq,vr9"))
+ clkdev_add_pmu("1e180000.etop", NULL, 0, PMU_PPE);
+
+ if (!of_machine_is_compatible("lantiq,ase")) {
+ clkdev_add_pmu("1e100c00.serial", NULL, 0, PMU_ASC1);
+ clkdev_add_pci();
+ }
+
+ if (of_machine_is_compatible("lantiq,ase")) {
+ if (ltq_cgu_r32(CGU_SYS) & (1 << 5))
+ clkdev_add_static(CLOCK_266M, CLOCK_133M, CLOCK_133M);
+ else
+ clkdev_add_static(CLOCK_133M, CLOCK_133M, CLOCK_133M);
+ clkdev_add_cgu("1e180000.etop", "ephycgu", CGU_EPHY),
+ clkdev_add_pmu("1e180000.etop", "ephy", 0, PMU_EPHY);
+ } else if (of_machine_is_compatible("lantiq,vr9")) {
+ clkdev_add_static(ltq_vr9_cpu_hz(), ltq_vr9_fpi_hz(),
+ ltq_vr9_fpi_hz());
+ clkdev_add_pmu("1d900000.pcie", "phy", 1, PMU1_PCIE_PHY);
+ clkdev_add_pmu("1d900000.pcie", "bus", 0, PMU_PCIE_CLK);
+ clkdev_add_pmu("1d900000.pcie", "msi", 1, PMU1_PCIE_MSI);
+ clkdev_add_pmu("1d900000.pcie", "pdi", 1, PMU1_PCIE_PDI);
+ clkdev_add_pmu("1d900000.pcie", "ctl", 1, PMU1_PCIE_CTL);
+ clkdev_add_pmu("1d900000.pcie", "ahb", 0, PMU_AHBM | PMU_AHBS);
+ } else if (of_machine_is_compatible("lantiq,ar9")) {
+ clkdev_add_static(ltq_ar9_cpu_hz(), ltq_ar9_fpi_hz(),
+ ltq_ar9_fpi_hz());
+ clkdev_add_pmu("1e180000.etop", "switch", 0, PMU_SWITCH);
+ } else {
+ clkdev_add_static(ltq_danube_cpu_hz(), ltq_danube_fpi_hz(),
+ ltq_danube_fpi_hz());
+ }
+}
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/r4kcache.h>
+#include <asm/traps.h>
#include <asm/mmu_context.h>
#include <asm/war.h>
}
}
+static void __cpuinit octeon_cache_error_setup(void)
+{
+ extern char except_vec2_octeon;
+ set_handler(0x100, &except_vec2_octeon, 0x80);
+}
/**
* Setup the Octeon cache flush routines
*/
void __cpuinit octeon_cache_init(void)
{
- extern unsigned long ebase;
- extern char except_vec2_octeon;
-
- memcpy((void *)(ebase + 0x100), &except_vec2_octeon, 0x80);
- octeon_flush_cache_sigtramp(ebase + 0x100);
-
probe_octeon();
shm_align_mask = PAGE_SIZE - 1;
build_clear_page();
build_copy_page();
+
+ board_cache_error_setup = octeon_cache_error_setup;
}
/**
#include <asm/mmu_context.h>
#include <asm/war.h>
#include <asm/cacheflush.h> /* for run_uncached() */
-
+#include <asm/traps.h>
/*
* Special Variant of smp_call_function for use by cache functions:
__setup("coherentio", setcoherentio);
#endif
-void __cpuinit r4k_cache_init(void)
+static void __cpuinit r4k_cache_error_setup(void)
{
- extern void build_clear_page(void);
- extern void build_copy_page(void);
extern char __weak except_vec2_generic;
extern char __weak except_vec2_sb1;
struct cpuinfo_mips *c = ¤t_cpu_data;
set_uncached_handler(0x100, &except_vec2_generic, 0x80);
break;
}
+}
+
+void __cpuinit r4k_cache_init(void)
+{
+ extern void build_clear_page(void);
+ extern void build_copy_page(void);
+ struct cpuinfo_mips *c = ¤t_cpu_data;
probe_pcache();
setup_scache();
local_r4k___flush_cache_all(NULL);
#endif
coherency_setup();
+ board_cache_error_setup = r4k_cache_error_setup;
}
-ccflags-y := -Werror
-
obj-$(CONFIG_OPROFILE) += oprofile.o
DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
}
}
+static irqreturn_t mipsxx_perfcount_int(int irq, void *dev_id)
+{
+ return mipsxx_perfcount_handler();
+}
+
static int __init mipsxx_init(void)
{
int counters;
save_perf_irq = perf_irq;
perf_irq = mipsxx_perfcount_handler;
+ if ((cp0_perfcount_irq >= 0) && (cp0_compare_irq != cp0_perfcount_irq))
+ return request_irq(cp0_perfcount_irq, mipsxx_perfcount_int,
+ 0, "Perfcounter", save_perf_irq);
+
return 0;
}
{
int counters = op_model_mipsxx_ops.num_counters;
+ if ((cp0_perfcount_irq >= 0) && (cp0_compare_irq != cp0_perfcount_irq))
+ free_irq(cp0_perfcount_irq, save_perf_irq);
+
counters = counters_per_cpu_to_total(counters);
on_each_cpu(reset_counters, (void *)(long)counters, 1);
obj-$(CONFIG_BCM63XX) += pci-bcm63xx.o fixup-bcm63xx.o \
ops-bcm63xx.o
obj-$(CONFIG_MIPS_ALCHEMY) += pci-alchemy.o
-obj-$(CONFIG_SOC_AR724X) += pci-ath724x.o
+obj-$(CONFIG_SOC_AR71XX) += pci-ar71xx.o
+obj-$(CONFIG_PCI_AR724X) += pci-ar724x.o
#
# These are still pretty much in the old state, watch, go blind.
obj-$(CONFIG_SIBYTE_BCM112X) += fixup-sb1250.o pci-sb1250.o
obj-$(CONFIG_SIBYTE_BCM1x80) += pci-bcm1480.o pci-bcm1480ht.o
obj-$(CONFIG_SNI_RM) += fixup-sni.o ops-sni.o
-obj-$(CONFIG_SOC_XWAY) += pci-lantiq.o ops-lantiq.o
+obj-$(CONFIG_LANTIQ) += fixup-lantiq.o
+obj-$(CONFIG_PCI_LANTIQ) += pci-lantiq.o ops-lantiq.o
obj-$(CONFIG_TANBAC_TB0219) += fixup-tb0219.o
obj-$(CONFIG_TANBAC_TB0226) += fixup-tb0226.o
obj-$(CONFIG_TANBAC_TB0287) += fixup-tb0287.o
--- /dev/null
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Copyright (C) 2012 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/of_irq.h>
+#include <linux/of_pci.h>
+
+int (*ltq_pci_plat_arch_init)(struct pci_dev *dev) = NULL;
+int (*ltq_pci_plat_dev_init)(struct pci_dev *dev) = NULL;
+
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ if (ltq_pci_plat_arch_init)
+ return ltq_pci_plat_arch_init(dev);
+
+ if (ltq_pci_plat_dev_init)
+ return ltq_pci_plat_dev_init(dev);
+
+ return 0;
+}
+
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+ struct of_irq dev_irq;
+ int irq;
+
+ if (of_irq_map_pci(dev, &dev_irq)) {
+ dev_err(&dev->dev, "trying to map irq for unknown slot:%d pin:%d\n",
+ slot, pin);
+ return 0;
+ }
+ irq = irq_create_of_mapping(dev_irq.controller, dev_irq.specifier,
+ dev_irq.size);
+ dev_info(&dev->dev, "SLOT:%d PIN:%d IRQ:%d\n", slot, pin, irq);
+ return irq;
+}
#include <linux/pci.h>
#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/export.h>
#include <loongson.h>
--- /dev/null
+/*
+ * Atheros AR71xx PCI host controller driver
+ *
+ * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * Parts of this file are based on Atheros' 2.6.15 BSP
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/resource.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+#include <linux/pci.h>
+#include <linux/pci_regs.h>
+#include <linux/interrupt.h>
+
+#include <asm/mach-ath79/ar71xx_regs.h>
+#include <asm/mach-ath79/ath79.h>
+#include <asm/mach-ath79/pci.h>
+
+#define AR71XX_PCI_MEM_BASE 0x10000000
+#define AR71XX_PCI_MEM_SIZE 0x08000000
+
+#define AR71XX_PCI_WIN0_OFFS 0x10000000
+#define AR71XX_PCI_WIN1_OFFS 0x11000000
+#define AR71XX_PCI_WIN2_OFFS 0x12000000
+#define AR71XX_PCI_WIN3_OFFS 0x13000000
+#define AR71XX_PCI_WIN4_OFFS 0x14000000
+#define AR71XX_PCI_WIN5_OFFS 0x15000000
+#define AR71XX_PCI_WIN6_OFFS 0x16000000
+#define AR71XX_PCI_WIN7_OFFS 0x07000000
+
+#define AR71XX_PCI_CFG_BASE \
+ (AR71XX_PCI_MEM_BASE + AR71XX_PCI_WIN7_OFFS + 0x10000)
+#define AR71XX_PCI_CFG_SIZE 0x100
+
+#define AR71XX_PCI_REG_CRP_AD_CBE 0x00
+#define AR71XX_PCI_REG_CRP_WRDATA 0x04
+#define AR71XX_PCI_REG_CRP_RDDATA 0x08
+#define AR71XX_PCI_REG_CFG_AD 0x0c
+#define AR71XX_PCI_REG_CFG_CBE 0x10
+#define AR71XX_PCI_REG_CFG_WRDATA 0x14
+#define AR71XX_PCI_REG_CFG_RDDATA 0x18
+#define AR71XX_PCI_REG_PCI_ERR 0x1c
+#define AR71XX_PCI_REG_PCI_ERR_ADDR 0x20
+#define AR71XX_PCI_REG_AHB_ERR 0x24
+#define AR71XX_PCI_REG_AHB_ERR_ADDR 0x28
+
+#define AR71XX_PCI_CRP_CMD_WRITE 0x00010000
+#define AR71XX_PCI_CRP_CMD_READ 0x00000000
+#define AR71XX_PCI_CFG_CMD_READ 0x0000000a
+#define AR71XX_PCI_CFG_CMD_WRITE 0x0000000b
+
+#define AR71XX_PCI_INT_CORE BIT(4)
+#define AR71XX_PCI_INT_DEV2 BIT(2)
+#define AR71XX_PCI_INT_DEV1 BIT(1)
+#define AR71XX_PCI_INT_DEV0 BIT(0)
+
+#define AR71XX_PCI_IRQ_COUNT 5
+
+static DEFINE_SPINLOCK(ar71xx_pci_lock);
+static void __iomem *ar71xx_pcicfg_base;
+
+/* Byte lane enable bits */
+static const u8 ar71xx_pci_ble_table[4][4] = {
+ {0x0, 0xf, 0xf, 0xf},
+ {0xe, 0xd, 0xb, 0x7},
+ {0xc, 0xf, 0x3, 0xf},
+ {0xf, 0xf, 0xf, 0xf},
+};
+
+static const u32 ar71xx_pci_read_mask[8] = {
+ 0, 0xff, 0xffff, 0, 0xffffffff, 0, 0, 0
+};
+
+static inline u32 ar71xx_pci_get_ble(int where, int size, int local)
+{
+ u32 t;
+
+ t = ar71xx_pci_ble_table[size & 3][where & 3];
+ BUG_ON(t == 0xf);
+ t <<= (local) ? 20 : 4;
+
+ return t;
+}
+
+static inline u32 ar71xx_pci_bus_addr(struct pci_bus *bus, unsigned int devfn,
+ int where)
+{
+ u32 ret;
+
+ if (!bus->number) {
+ /* type 0 */
+ ret = (1 << PCI_SLOT(devfn)) | (PCI_FUNC(devfn) << 8) |
+ (where & ~3);
+ } else {
+ /* type 1 */
+ ret = (bus->number << 16) | (PCI_SLOT(devfn) << 11) |
+ (PCI_FUNC(devfn) << 8) | (where & ~3) | 1;
+ }
+
+ return ret;
+}
+
+static int ar71xx_pci_check_error(int quiet)
+{
+ void __iomem *base = ar71xx_pcicfg_base;
+ u32 pci_err;
+ u32 ahb_err;
+
+ pci_err = __raw_readl(base + AR71XX_PCI_REG_PCI_ERR) & 3;
+ if (pci_err) {
+ if (!quiet) {
+ u32 addr;
+
+ addr = __raw_readl(base + AR71XX_PCI_REG_PCI_ERR_ADDR);
+ pr_crit("ar71xx: %s bus error %d at addr 0x%x\n",
+ "PCI", pci_err, addr);
+ }
+
+ /* clear PCI error status */
+ __raw_writel(pci_err, base + AR71XX_PCI_REG_PCI_ERR);
+ }
+
+ ahb_err = __raw_readl(base + AR71XX_PCI_REG_AHB_ERR) & 1;
+ if (ahb_err) {
+ if (!quiet) {
+ u32 addr;
+
+ addr = __raw_readl(base + AR71XX_PCI_REG_AHB_ERR_ADDR);
+ pr_crit("ar71xx: %s bus error %d at addr 0x%x\n",
+ "AHB", ahb_err, addr);
+ }
+
+ /* clear AHB error status */
+ __raw_writel(ahb_err, base + AR71XX_PCI_REG_AHB_ERR);
+ }
+
+ return !!(ahb_err | pci_err);
+}
+
+static inline void ar71xx_pci_local_write(int where, int size, u32 value)
+{
+ void __iomem *base = ar71xx_pcicfg_base;
+ u32 ad_cbe;
+
+ value = value << (8 * (where & 3));
+
+ ad_cbe = AR71XX_PCI_CRP_CMD_WRITE | (where & ~3);
+ ad_cbe |= ar71xx_pci_get_ble(where, size, 1);
+
+ __raw_writel(ad_cbe, base + AR71XX_PCI_REG_CRP_AD_CBE);
+ __raw_writel(value, base + AR71XX_PCI_REG_CRP_WRDATA);
+}
+
+static inline int ar71xx_pci_set_cfgaddr(struct pci_bus *bus,
+ unsigned int devfn,
+ int where, int size, u32 cmd)
+{
+ void __iomem *base = ar71xx_pcicfg_base;
+ u32 addr;
+
+ addr = ar71xx_pci_bus_addr(bus, devfn, where);
+
+ __raw_writel(addr, base + AR71XX_PCI_REG_CFG_AD);
+ __raw_writel(cmd | ar71xx_pci_get_ble(where, size, 0),
+ base + AR71XX_PCI_REG_CFG_CBE);
+
+ return ar71xx_pci_check_error(1);
+}
+
+static int ar71xx_pci_read_config(struct pci_bus *bus, unsigned int devfn,
+ int where, int size, u32 *value)
+{
+ void __iomem *base = ar71xx_pcicfg_base;
+ unsigned long flags;
+ u32 data;
+ int err;
+ int ret;
+
+ ret = PCIBIOS_SUCCESSFUL;
+ data = ~0;
+
+ spin_lock_irqsave(&ar71xx_pci_lock, flags);
+
+ err = ar71xx_pci_set_cfgaddr(bus, devfn, where, size,
+ AR71XX_PCI_CFG_CMD_READ);
+ if (err)
+ ret = PCIBIOS_DEVICE_NOT_FOUND;
+ else
+ data = __raw_readl(base + AR71XX_PCI_REG_CFG_RDDATA);
+
+ spin_unlock_irqrestore(&ar71xx_pci_lock, flags);
+
+ *value = (data >> (8 * (where & 3))) & ar71xx_pci_read_mask[size & 7];
+
+ return ret;
+}
+
+static int ar71xx_pci_write_config(struct pci_bus *bus, unsigned int devfn,
+ int where, int size, u32 value)
+{
+ void __iomem *base = ar71xx_pcicfg_base;
+ unsigned long flags;
+ int err;
+ int ret;
+
+ value = value << (8 * (where & 3));
+ ret = PCIBIOS_SUCCESSFUL;
+
+ spin_lock_irqsave(&ar71xx_pci_lock, flags);
+
+ err = ar71xx_pci_set_cfgaddr(bus, devfn, where, size,
+ AR71XX_PCI_CFG_CMD_WRITE);
+ if (err)
+ ret = PCIBIOS_DEVICE_NOT_FOUND;
+ else
+ __raw_writel(value, base + AR71XX_PCI_REG_CFG_WRDATA);
+
+ spin_unlock_irqrestore(&ar71xx_pci_lock, flags);
+
+ return ret;
+}
+
+static struct pci_ops ar71xx_pci_ops = {
+ .read = ar71xx_pci_read_config,
+ .write = ar71xx_pci_write_config,
+};
+
+static struct resource ar71xx_pci_io_resource = {
+ .name = "PCI IO space",
+ .start = 0,
+ .end = 0,
+ .flags = IORESOURCE_IO,
+};
+
+static struct resource ar71xx_pci_mem_resource = {
+ .name = "PCI memory space",
+ .start = AR71XX_PCI_MEM_BASE,
+ .end = AR71XX_PCI_MEM_BASE + AR71XX_PCI_MEM_SIZE - 1,
+ .flags = IORESOURCE_MEM
+};
+
+static struct pci_controller ar71xx_pci_controller = {
+ .pci_ops = &ar71xx_pci_ops,
+ .mem_resource = &ar71xx_pci_mem_resource,
+ .io_resource = &ar71xx_pci_io_resource,
+};
+
+static void ar71xx_pci_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+ void __iomem *base = ath79_reset_base;
+ u32 pending;
+
+ pending = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_STATUS) &
+ __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+
+ if (pending & AR71XX_PCI_INT_DEV0)
+ generic_handle_irq(ATH79_PCI_IRQ(0));
+
+ else if (pending & AR71XX_PCI_INT_DEV1)
+ generic_handle_irq(ATH79_PCI_IRQ(1));
+
+ else if (pending & AR71XX_PCI_INT_DEV2)
+ generic_handle_irq(ATH79_PCI_IRQ(2));
+
+ else if (pending & AR71XX_PCI_INT_CORE)
+ generic_handle_irq(ATH79_PCI_IRQ(4));
+
+ else
+ spurious_interrupt();
+}
+
+static void ar71xx_pci_irq_unmask(struct irq_data *d)
+{
+ unsigned int irq = d->irq - ATH79_PCI_IRQ_BASE;
+ void __iomem *base = ath79_reset_base;
+ u32 t;
+
+ t = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+ __raw_writel(t | (1 << irq), base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+
+ /* flush write */
+ __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+}
+
+static void ar71xx_pci_irq_mask(struct irq_data *d)
+{
+ unsigned int irq = d->irq - ATH79_PCI_IRQ_BASE;
+ void __iomem *base = ath79_reset_base;
+ u32 t;
+
+ t = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+ __raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+
+ /* flush write */
+ __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+}
+
+static struct irq_chip ar71xx_pci_irq_chip = {
+ .name = "AR71XX PCI",
+ .irq_mask = ar71xx_pci_irq_mask,
+ .irq_unmask = ar71xx_pci_irq_unmask,
+ .irq_mask_ack = ar71xx_pci_irq_mask,
+};
+
+static __init void ar71xx_pci_irq_init(void)
+{
+ void __iomem *base = ath79_reset_base;
+ int i;
+
+ __raw_writel(0, base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+ __raw_writel(0, base + AR71XX_RESET_REG_PCI_INT_STATUS);
+
+ BUILD_BUG_ON(ATH79_PCI_IRQ_COUNT < AR71XX_PCI_IRQ_COUNT);
+
+ for (i = ATH79_PCI_IRQ_BASE;
+ i < ATH79_PCI_IRQ_BASE + AR71XX_PCI_IRQ_COUNT; i++)
+ irq_set_chip_and_handler(i, &ar71xx_pci_irq_chip,
+ handle_level_irq);
+
+ irq_set_chained_handler(ATH79_CPU_IRQ_IP2, ar71xx_pci_irq_handler);
+}
+
+static __init void ar71xx_pci_reset(void)
+{
+ void __iomem *ddr_base = ath79_ddr_base;
+
+ ath79_device_reset_set(AR71XX_RESET_PCI_BUS | AR71XX_RESET_PCI_CORE);
+ mdelay(100);
+
+ ath79_device_reset_clear(AR71XX_RESET_PCI_BUS | AR71XX_RESET_PCI_CORE);
+ mdelay(100);
+
+ __raw_writel(AR71XX_PCI_WIN0_OFFS, ddr_base + AR71XX_DDR_REG_PCI_WIN0);
+ __raw_writel(AR71XX_PCI_WIN1_OFFS, ddr_base + AR71XX_DDR_REG_PCI_WIN1);
+ __raw_writel(AR71XX_PCI_WIN2_OFFS, ddr_base + AR71XX_DDR_REG_PCI_WIN2);
+ __raw_writel(AR71XX_PCI_WIN3_OFFS, ddr_base + AR71XX_DDR_REG_PCI_WIN3);
+ __raw_writel(AR71XX_PCI_WIN4_OFFS, ddr_base + AR71XX_DDR_REG_PCI_WIN4);
+ __raw_writel(AR71XX_PCI_WIN5_OFFS, ddr_base + AR71XX_DDR_REG_PCI_WIN5);
+ __raw_writel(AR71XX_PCI_WIN6_OFFS, ddr_base + AR71XX_DDR_REG_PCI_WIN6);
+ __raw_writel(AR71XX_PCI_WIN7_OFFS, ddr_base + AR71XX_DDR_REG_PCI_WIN7);
+
+ mdelay(100);
+}
+
+__init int ar71xx_pcibios_init(void)
+{
+ u32 t;
+
+ ar71xx_pcicfg_base = ioremap(AR71XX_PCI_CFG_BASE, AR71XX_PCI_CFG_SIZE);
+ if (ar71xx_pcicfg_base == NULL)
+ return -ENOMEM;
+
+ ar71xx_pci_reset();
+
+ /* setup COMMAND register */
+ t = PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_INVALIDATE
+ | PCI_COMMAND_PARITY | PCI_COMMAND_SERR | PCI_COMMAND_FAST_BACK;
+ ar71xx_pci_local_write(PCI_COMMAND, 4, t);
+
+ /* clear bus errors */
+ ar71xx_pci_check_error(1);
+
+ ar71xx_pci_irq_init();
+
+ register_pci_controller(&ar71xx_pci_controller);
+
+ return 0;
+}
--- /dev/null
+/*
+ * Atheros AR724X PCI host controller driver
+ *
+ * Copyright (C) 2011 René Bolldorf <xsecute@googlemail.com>
+ * Copyright (C) 2009-2011 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/irq.h>
+#include <linux/pci.h>
+#include <asm/mach-ath79/ath79.h>
+#include <asm/mach-ath79/ar71xx_regs.h>
+#include <asm/mach-ath79/pci.h>
+
+#define AR724X_PCI_CFG_BASE 0x14000000
+#define AR724X_PCI_CFG_SIZE 0x1000
+#define AR724X_PCI_CTRL_BASE (AR71XX_APB_BASE + 0x000f0000)
+#define AR724X_PCI_CTRL_SIZE 0x100
+
+#define AR724X_PCI_MEM_BASE 0x10000000
+#define AR724X_PCI_MEM_SIZE 0x08000000
+
+#define AR724X_PCI_REG_INT_STATUS 0x4c
+#define AR724X_PCI_REG_INT_MASK 0x50
+
+#define AR724X_PCI_INT_DEV0 BIT(14)
+
+#define AR724X_PCI_IRQ_COUNT 1
+
+#define AR7240_BAR0_WAR_VALUE 0xffff
+
+static DEFINE_SPINLOCK(ar724x_pci_lock);
+static void __iomem *ar724x_pci_devcfg_base;
+static void __iomem *ar724x_pci_ctrl_base;
+
+static u32 ar724x_pci_bar0_value;
+static bool ar724x_pci_bar0_is_cached;
+
+static int ar724x_pci_read(struct pci_bus *bus, unsigned int devfn, int where,
+ int size, uint32_t *value)
+{
+ unsigned long flags;
+ void __iomem *base;
+ u32 data;
+
+ if (devfn)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ base = ar724x_pci_devcfg_base;
+
+ spin_lock_irqsave(&ar724x_pci_lock, flags);
+ data = __raw_readl(base + (where & ~3));
+
+ switch (size) {
+ case 1:
+ if (where & 1)
+ data >>= 8;
+ if (where & 2)
+ data >>= 16;
+ data &= 0xff;
+ break;
+ case 2:
+ if (where & 2)
+ data >>= 16;
+ data &= 0xffff;
+ break;
+ case 4:
+ break;
+ default:
+ spin_unlock_irqrestore(&ar724x_pci_lock, flags);
+
+ return PCIBIOS_BAD_REGISTER_NUMBER;
+ }
+
+ spin_unlock_irqrestore(&ar724x_pci_lock, flags);
+
+ if (where == PCI_BASE_ADDRESS_0 && size == 4 &&
+ ar724x_pci_bar0_is_cached) {
+ /* use the cached value */
+ *value = ar724x_pci_bar0_value;
+ } else {
+ *value = data;
+ }
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+static int ar724x_pci_write(struct pci_bus *bus, unsigned int devfn, int where,
+ int size, uint32_t value)
+{
+ unsigned long flags;
+ void __iomem *base;
+ u32 data;
+ int s;
+
+ if (devfn)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ if (soc_is_ar7240() && where == PCI_BASE_ADDRESS_0 && size == 4) {
+ if (value != 0xffffffff) {
+ /*
+ * WAR for a hw issue. If the BAR0 register of the
+ * device is set to the proper base address, the
+ * memory space of the device is not accessible.
+ *
+ * Cache the intended value so it can be read back,
+ * and write a SoC specific constant value to the
+ * BAR0 register in order to make the device memory
+ * accessible.
+ */
+ ar724x_pci_bar0_is_cached = true;
+ ar724x_pci_bar0_value = value;
+
+ value = AR7240_BAR0_WAR_VALUE;
+ } else {
+ ar724x_pci_bar0_is_cached = false;
+ }
+ }
+
+ base = ar724x_pci_devcfg_base;
+
+ spin_lock_irqsave(&ar724x_pci_lock, flags);
+ data = __raw_readl(base + (where & ~3));
+
+ switch (size) {
+ case 1:
+ s = ((where & 3) * 8);
+ data &= ~(0xff << s);
+ data |= ((value & 0xff) << s);
+ break;
+ case 2:
+ s = ((where & 2) * 8);
+ data &= ~(0xffff << s);
+ data |= ((value & 0xffff) << s);
+ break;
+ case 4:
+ data = value;
+ break;
+ default:
+ spin_unlock_irqrestore(&ar724x_pci_lock, flags);
+
+ return PCIBIOS_BAD_REGISTER_NUMBER;
+ }
+
+ __raw_writel(data, base + (where & ~3));
+ /* flush write */
+ __raw_readl(base + (where & ~3));
+ spin_unlock_irqrestore(&ar724x_pci_lock, flags);
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+static struct pci_ops ar724x_pci_ops = {
+ .read = ar724x_pci_read,
+ .write = ar724x_pci_write,
+};
+
+static struct resource ar724x_io_resource = {
+ .name = "PCI IO space",
+ .start = 0,
+ .end = 0,
+ .flags = IORESOURCE_IO,
+};
+
+static struct resource ar724x_mem_resource = {
+ .name = "PCI memory space",
+ .start = AR724X_PCI_MEM_BASE,
+ .end = AR724X_PCI_MEM_BASE + AR724X_PCI_MEM_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct pci_controller ar724x_pci_controller = {
+ .pci_ops = &ar724x_pci_ops,
+ .io_resource = &ar724x_io_resource,
+ .mem_resource = &ar724x_mem_resource,
+};
+
+static void ar724x_pci_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+ void __iomem *base;
+ u32 pending;
+
+ base = ar724x_pci_ctrl_base;
+
+ pending = __raw_readl(base + AR724X_PCI_REG_INT_STATUS) &
+ __raw_readl(base + AR724X_PCI_REG_INT_MASK);
+
+ if (pending & AR724X_PCI_INT_DEV0)
+ generic_handle_irq(ATH79_PCI_IRQ(0));
+
+ else
+ spurious_interrupt();
+}
+
+static void ar724x_pci_irq_unmask(struct irq_data *d)
+{
+ void __iomem *base;
+ u32 t;
+
+ base = ar724x_pci_ctrl_base;
+
+ switch (d->irq) {
+ case ATH79_PCI_IRQ(0):
+ t = __raw_readl(base + AR724X_PCI_REG_INT_MASK);
+ __raw_writel(t | AR724X_PCI_INT_DEV0,
+ base + AR724X_PCI_REG_INT_MASK);
+ /* flush write */
+ __raw_readl(base + AR724X_PCI_REG_INT_MASK);
+ }
+}
+
+static void ar724x_pci_irq_mask(struct irq_data *d)
+{
+ void __iomem *base;
+ u32 t;
+
+ base = ar724x_pci_ctrl_base;
+
+ switch (d->irq) {
+ case ATH79_PCI_IRQ(0):
+ t = __raw_readl(base + AR724X_PCI_REG_INT_MASK);
+ __raw_writel(t & ~AR724X_PCI_INT_DEV0,
+ base + AR724X_PCI_REG_INT_MASK);
+
+ /* flush write */
+ __raw_readl(base + AR724X_PCI_REG_INT_MASK);
+
+ t = __raw_readl(base + AR724X_PCI_REG_INT_STATUS);
+ __raw_writel(t | AR724X_PCI_INT_DEV0,
+ base + AR724X_PCI_REG_INT_STATUS);
+
+ /* flush write */
+ __raw_readl(base + AR724X_PCI_REG_INT_STATUS);
+ }
+}
+
+static struct irq_chip ar724x_pci_irq_chip = {
+ .name = "AR724X PCI ",
+ .irq_mask = ar724x_pci_irq_mask,
+ .irq_unmask = ar724x_pci_irq_unmask,
+ .irq_mask_ack = ar724x_pci_irq_mask,
+};
+
+static void __init ar724x_pci_irq_init(int irq)
+{
+ void __iomem *base;
+ int i;
+
+ base = ar724x_pci_ctrl_base;
+
+ __raw_writel(0, base + AR724X_PCI_REG_INT_MASK);
+ __raw_writel(0, base + AR724X_PCI_REG_INT_STATUS);
+
+ BUILD_BUG_ON(ATH79_PCI_IRQ_COUNT < AR724X_PCI_IRQ_COUNT);
+
+ for (i = ATH79_PCI_IRQ_BASE;
+ i < ATH79_PCI_IRQ_BASE + AR724X_PCI_IRQ_COUNT; i++)
+ irq_set_chip_and_handler(i, &ar724x_pci_irq_chip,
+ handle_level_irq);
+
+ irq_set_chained_handler(irq, ar724x_pci_irq_handler);
+}
+
+int __init ar724x_pcibios_init(int irq)
+{
+ int ret;
+
+ ret = -ENOMEM;
+
+ ar724x_pci_devcfg_base = ioremap(AR724X_PCI_CFG_BASE,
+ AR724X_PCI_CFG_SIZE);
+ if (ar724x_pci_devcfg_base == NULL)
+ goto err;
+
+ ar724x_pci_ctrl_base = ioremap(AR724X_PCI_CTRL_BASE,
+ AR724X_PCI_CTRL_SIZE);
+ if (ar724x_pci_ctrl_base == NULL)
+ goto err_unmap_devcfg;
+
+ ar724x_pci_irq_init(irq);
+ register_pci_controller(&ar724x_pci_controller);
+
+ return PCIBIOS_SUCCESSFUL;
+
+err_unmap_devcfg:
+ iounmap(ar724x_pci_devcfg_base);
+err:
+ return ret;
+}
+++ /dev/null
-/*
- * Atheros 724x PCI support
- *
- * Copyright (C) 2011 René Bolldorf <xsecute@googlemail.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#include <linux/pci.h>
-#include <asm/mach-ath79/pci-ath724x.h>
-
-#define reg_read(_phys) (*(unsigned int *) KSEG1ADDR(_phys))
-#define reg_write(_phys, _val) ((*(unsigned int *) KSEG1ADDR(_phys)) = (_val))
-
-#define ATH724X_PCI_DEV_BASE 0x14000000
-#define ATH724X_PCI_MEM_BASE 0x10000000
-#define ATH724X_PCI_MEM_SIZE 0x08000000
-
-static DEFINE_SPINLOCK(ath724x_pci_lock);
-static struct ath724x_pci_data *pci_data;
-static int pci_data_size;
-
-static int ath724x_pci_read(struct pci_bus *bus, unsigned int devfn, int where,
- int size, uint32_t *value)
-{
- unsigned long flags, addr, tval, mask;
-
- if (devfn)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- if (where & (size - 1))
- return PCIBIOS_BAD_REGISTER_NUMBER;
-
- spin_lock_irqsave(&ath724x_pci_lock, flags);
-
- switch (size) {
- case 1:
- addr = where & ~3;
- mask = 0xff000000 >> ((where % 4) * 8);
- tval = reg_read(ATH724X_PCI_DEV_BASE + addr);
- tval = tval & ~mask;
- *value = (tval >> ((4 - (where % 4))*8));
- break;
- case 2:
- addr = where & ~3;
- mask = 0xffff0000 >> ((where % 4)*8);
- tval = reg_read(ATH724X_PCI_DEV_BASE + addr);
- tval = tval & ~mask;
- *value = (tval >> ((4 - (where % 4))*8));
- break;
- case 4:
- *value = reg_read(ATH724X_PCI_DEV_BASE + where);
- break;
- default:
- spin_unlock_irqrestore(&ath724x_pci_lock, flags);
-
- return PCIBIOS_BAD_REGISTER_NUMBER;
- }
-
- spin_unlock_irqrestore(&ath724x_pci_lock, flags);
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int ath724x_pci_write(struct pci_bus *bus, unsigned int devfn, int where,
- int size, uint32_t value)
-{
- unsigned long flags, tval, addr, mask;
-
- if (devfn)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- if (where & (size - 1))
- return PCIBIOS_BAD_REGISTER_NUMBER;
-
- spin_lock_irqsave(&ath724x_pci_lock, flags);
-
- switch (size) {
- case 1:
- addr = (ATH724X_PCI_DEV_BASE + where) & ~3;
- mask = 0xff000000 >> ((where % 4)*8);
- tval = reg_read(addr);
- tval = tval & ~mask;
- tval |= (value << ((4 - (where % 4))*8)) & mask;
- reg_write(addr, tval);
- break;
- case 2:
- addr = (ATH724X_PCI_DEV_BASE + where) & ~3;
- mask = 0xffff0000 >> ((where % 4)*8);
- tval = reg_read(addr);
- tval = tval & ~mask;
- tval |= (value << ((4 - (where % 4))*8)) & mask;
- reg_write(addr, tval);
- break;
- case 4:
- reg_write((ATH724X_PCI_DEV_BASE + where), value);
- break;
- default:
- spin_unlock_irqrestore(&ath724x_pci_lock, flags);
-
- return PCIBIOS_BAD_REGISTER_NUMBER;
- }
-
- spin_unlock_irqrestore(&ath724x_pci_lock, flags);
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops ath724x_pci_ops = {
- .read = ath724x_pci_read,
- .write = ath724x_pci_write,
-};
-
-static struct resource ath724x_io_resource = {
- .name = "PCI IO space",
- .start = 0,
- .end = 0,
- .flags = IORESOURCE_IO,
-};
-
-static struct resource ath724x_mem_resource = {
- .name = "PCI memory space",
- .start = ATH724X_PCI_MEM_BASE,
- .end = ATH724X_PCI_MEM_BASE + ATH724X_PCI_MEM_SIZE - 1,
- .flags = IORESOURCE_MEM,
-};
-
-static struct pci_controller ath724x_pci_controller = {
- .pci_ops = &ath724x_pci_ops,
- .io_resource = &ath724x_io_resource,
- .mem_resource = &ath724x_mem_resource,
-};
-
-void ath724x_pci_add_data(struct ath724x_pci_data *data, int size)
-{
- pci_data = data;
- pci_data_size = size;
-}
-
-int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
-{
- unsigned int devfn = dev->devfn;
- int irq = -1;
-
- if (devfn > pci_data_size - 1)
- return irq;
-
- irq = pci_data[devfn].irq;
-
- return irq;
-}
-
-int pcibios_plat_dev_init(struct pci_dev *dev)
-{
- unsigned int devfn = dev->devfn;
-
- if (devfn > pci_data_size - 1)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- dev->dev.platform_data = pci_data[devfn].pdata;
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int __init ath724x_pcibios_init(void)
-{
- register_pci_controller(&ath724x_pci_controller);
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-arch_initcall(ath724x_pcibios_init);
#include <linux/delay.h>
#include <linux/mm.h>
#include <linux/vmalloc.h>
-#include <linux/export.h>
-#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/of_platform.h>
+#include <linux/of_gpio.h>
+#include <linux/of_irq.h>
+#include <linux/of_pci.h>
#include <asm/pci.h>
#include <asm/gpio.h>
#include <lantiq_soc.h>
#include <lantiq_irq.h>
-#include <lantiq_platform.h>
#include "pci-lantiq.h"
-#define LTQ_PCI_CFG_BASE 0x17000000
-#define LTQ_PCI_CFG_SIZE 0x00008000
-#define LTQ_PCI_MEM_BASE 0x18000000
-#define LTQ_PCI_MEM_SIZE 0x02000000
-#define LTQ_PCI_IO_BASE 0x1AE00000
-#define LTQ_PCI_IO_SIZE 0x00200000
-
#define PCI_CR_FCI_ADDR_MAP0 0x00C0
#define PCI_CR_FCI_ADDR_MAP1 0x00C4
#define PCI_CR_FCI_ADDR_MAP2 0x00C8
#define ltq_pci_cfg_w32(x, y) ltq_w32((x), ltq_pci_mapped_cfg + (y))
#define ltq_pci_cfg_r32(x) ltq_r32(ltq_pci_mapped_cfg + (x))
-struct ltq_pci_gpio_map {
- int pin;
- int alt0;
- int alt1;
- int dir;
- char *name;
-};
-
-/* the pci core can make use of the following gpios */
-static struct ltq_pci_gpio_map ltq_pci_gpio_map[] = {
- { 0, 1, 0, 0, "pci-exin0" },
- { 1, 1, 0, 0, "pci-exin1" },
- { 2, 1, 0, 0, "pci-exin2" },
- { 39, 1, 0, 0, "pci-exin3" },
- { 10, 1, 0, 0, "pci-exin4" },
- { 9, 1, 0, 0, "pci-exin5" },
- { 30, 1, 0, 1, "pci-gnt1" },
- { 23, 1, 0, 1, "pci-gnt2" },
- { 19, 1, 0, 1, "pci-gnt3" },
- { 38, 1, 0, 1, "pci-gnt4" },
- { 29, 1, 0, 0, "pci-req1" },
- { 31, 1, 0, 0, "pci-req2" },
- { 3, 1, 0, 0, "pci-req3" },
- { 37, 1, 0, 0, "pci-req4" },
-};
-
__iomem void *ltq_pci_mapped_cfg;
static __iomem void *ltq_pci_membase;
-int (*ltqpci_plat_dev_init)(struct pci_dev *dev) = NULL;
-
-/* Since the PCI REQ pins can be reused for other functionality, make it
- possible to exclude those from interpretation by the PCI controller */
-static int ltq_pci_req_mask = 0xf;
-
-static int *ltq_pci_irq_map;
-
-struct pci_ops ltq_pci_ops = {
+static int reset_gpio;
+static struct clk *clk_pci, *clk_external;
+static struct resource pci_io_resource;
+static struct resource pci_mem_resource;
+static struct pci_ops pci_ops = {
.read = ltq_pci_read_config_dword,
.write = ltq_pci_write_config_dword
};
-static struct resource pci_io_resource = {
- .name = "pci io space",
- .start = LTQ_PCI_IO_BASE,
- .end = LTQ_PCI_IO_BASE + LTQ_PCI_IO_SIZE - 1,
- .flags = IORESOURCE_IO
-};
-
-static struct resource pci_mem_resource = {
- .name = "pci memory space",
- .start = LTQ_PCI_MEM_BASE,
- .end = LTQ_PCI_MEM_BASE + LTQ_PCI_MEM_SIZE - 1,
- .flags = IORESOURCE_MEM
-};
-
-static struct pci_controller ltq_pci_controller = {
- .pci_ops = <q_pci_ops,
+static struct pci_controller pci_controller = {
+ .pci_ops = &pci_ops,
.mem_resource = &pci_mem_resource,
.mem_offset = 0x00000000UL,
.io_resource = &pci_io_resource,
.io_offset = 0x00000000UL,
};
-int pcibios_plat_dev_init(struct pci_dev *dev)
-{
- if (ltqpci_plat_dev_init)
- return ltqpci_plat_dev_init(dev);
-
- return 0;
-}
-
-static u32 ltq_calc_bar11mask(void)
+static inline u32 ltq_calc_bar11mask(void)
{
u32 mem, bar11mask;
return bar11mask;
}
-static void ltq_pci_setup_gpio(int gpio)
-{
- int i;
- for (i = 0; i < ARRAY_SIZE(ltq_pci_gpio_map); i++) {
- if (gpio & (1 << i)) {
- ltq_gpio_request(ltq_pci_gpio_map[i].pin,
- ltq_pci_gpio_map[i].alt0,
- ltq_pci_gpio_map[i].alt1,
- ltq_pci_gpio_map[i].dir,
- ltq_pci_gpio_map[i].name);
- }
- }
- ltq_gpio_request(21, 0, 0, 1, "pci-reset");
- ltq_pci_req_mask = (gpio >> PCI_REQ_SHIFT) & PCI_REQ_MASK;
-}
-
-static int __devinit ltq_pci_startup(struct ltq_pci_data *conf)
+static int __devinit ltq_pci_startup(struct platform_device *pdev)
{
+ struct device_node *node = pdev->dev.of_node;
+ const __be32 *req_mask, *bus_clk;
u32 temp_buffer;
- /* set clock to 33Mhz */
- if (ltq_is_ar9()) {
- ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) & ~0x1f00000, LTQ_CGU_IFCCR);
- ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) | 0xe00000, LTQ_CGU_IFCCR);
- } else {
- ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) & ~0xf00000, LTQ_CGU_IFCCR);
- ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) | 0x800000, LTQ_CGU_IFCCR);
+ /* get our clocks */
+ clk_pci = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(clk_pci)) {
+ dev_err(&pdev->dev, "failed to get pci clock\n");
+ return PTR_ERR(clk_pci);
}
- /* external or internal clock ? */
- if (conf->clock) {
- ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) & ~(1 << 16),
- LTQ_CGU_IFCCR);
- ltq_cgu_w32((1 << 30), LTQ_CGU_PCICR);
- } else {
- ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) | (1 << 16),
- LTQ_CGU_IFCCR);
- ltq_cgu_w32((1 << 31) | (1 << 30), LTQ_CGU_PCICR);
+ clk_external = clk_get(&pdev->dev, "external");
+ if (IS_ERR(clk_external)) {
+ clk_put(clk_pci);
+ dev_err(&pdev->dev, "failed to get external pci clock\n");
+ return PTR_ERR(clk_external);
}
- /* setup pci clock and gpis used by pci */
- ltq_pci_setup_gpio(conf->gpio);
+ /* read the bus speed that we want */
+ bus_clk = of_get_property(node, "lantiq,bus-clock", NULL);
+ if (bus_clk)
+ clk_set_rate(clk_pci, *bus_clk);
+
+ /* and enable the clocks */
+ clk_enable(clk_pci);
+ if (of_find_property(node, "lantiq,external-clock", NULL))
+ clk_enable(clk_external);
+ else
+ clk_disable(clk_external);
+
+ /* setup reset gpio used by pci */
+ reset_gpio = of_get_named_gpio(node, "gpio-reset", 0);
+ if (reset_gpio > 0)
+ devm_gpio_request(&pdev->dev, reset_gpio, "pci-reset");
/* enable auto-switching between PCI and EBU */
ltq_pci_w32(0xa, PCI_CR_CLK_CTRL);
/* enable external 2 PCI masters */
temp_buffer = ltq_pci_r32(PCI_CR_PC_ARB);
- temp_buffer &= (~(ltq_pci_req_mask << 16));
+ /* setup the request mask */
+ req_mask = of_get_property(node, "req-mask", NULL);
+ if (req_mask)
+ temp_buffer &= ~((*req_mask & 0xf) << 16);
+ else
+ temp_buffer &= ~0xf0000;
/* enable internal arbiter */
temp_buffer |= (1 << INTERNAL_ARB_ENABLE_BIT);
/* enable internal PCI master reqest */
ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_PCC_IEN) | 0x10, LTQ_EBU_PCC_IEN);
/* toggle reset pin */
- __gpio_set_value(21, 0);
- wmb();
- mdelay(1);
- __gpio_set_value(21, 1);
- return 0;
-}
-
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
- if (ltq_pci_irq_map[slot])
- return ltq_pci_irq_map[slot];
- printk(KERN_ERR "lq_pci: trying to map irq for unknown slot %d\n",
- slot);
-
+ if (reset_gpio > 0) {
+ __gpio_set_value(reset_gpio, 0);
+ wmb();
+ mdelay(1);
+ __gpio_set_value(reset_gpio, 1);
+ }
return 0;
}
static int __devinit ltq_pci_probe(struct platform_device *pdev)
{
- struct ltq_pci_data *ltq_pci_data =
- (struct ltq_pci_data *) pdev->dev.platform_data;
+ struct resource *res_cfg, *res_bridge;
pci_clear_flags(PCI_PROBE_ONLY);
- ltq_pci_irq_map = ltq_pci_data->irq;
- ltq_pci_membase = ioremap_nocache(PCI_CR_BASE_ADDR, PCI_CR_SIZE);
- ltq_pci_mapped_cfg =
- ioremap_nocache(LTQ_PCI_CFG_BASE, LTQ_PCI_CFG_BASE);
- ltq_pci_controller.io_map_base =
- (unsigned long)ioremap(LTQ_PCI_IO_BASE, LTQ_PCI_IO_SIZE - 1);
- ltq_pci_startup(ltq_pci_data);
- register_pci_controller(<q_pci_controller);
+ res_cfg = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ res_bridge = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ if (!res_cfg || !res_bridge) {
+ dev_err(&pdev->dev, "missing memory reources\n");
+ return -EINVAL;
+ }
+
+ ltq_pci_membase = devm_request_and_ioremap(&pdev->dev, res_bridge);
+ ltq_pci_mapped_cfg = devm_request_and_ioremap(&pdev->dev, res_cfg);
+
+ if (!ltq_pci_membase || !ltq_pci_mapped_cfg) {
+ dev_err(&pdev->dev, "failed to remap resources\n");
+ return -ENOMEM;
+ }
+
+ ltq_pci_startup(pdev);
+
+ pci_load_of_ranges(&pci_controller, pdev->dev.of_node);
+ register_pci_controller(&pci_controller);
return 0;
}
-static struct platform_driver
-ltq_pci_driver = {
+static const struct of_device_id ltq_pci_match[] = {
+ { .compatible = "lantiq,pci-xway" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, ltq_pci_match);
+
+static struct platform_driver ltq_pci_driver = {
.probe = ltq_pci_probe,
.driver = {
- .name = "ltq_pci",
+ .name = "pci-xway",
.owner = THIS_MODULE,
+ .of_match_table = ltq_pci_match,
},
};
{
int ret = platform_driver_register(<q_pci_driver);
if (ret)
- printk(KERN_INFO "ltq_pci: Error registering platfom driver!");
+ pr_info("pci-xway: Error registering platform driver!");
return ret;
}
#include <linux/init.h>
#include <linux/types.h>
#include <linux/pci.h>
+#include <linux/of_address.h>
#include <asm/cpu-info.h>
pci_bus_assign_resources(bus);
pci_enable_bridges(bus);
}
+ bus->dev.of_node = hose->of_node;
}
}
+#ifdef CONFIG_OF
+void __devinit pci_load_of_ranges(struct pci_controller *hose,
+ struct device_node *node)
+{
+ const __be32 *ranges;
+ int rlen;
+ int pna = of_n_addr_cells(node);
+ int np = pna + 5;
+
+ pr_info("PCI host bridge %s ranges:\n", node->full_name);
+ ranges = of_get_property(node, "ranges", &rlen);
+ if (ranges == NULL)
+ return;
+ hose->of_node = node;
+
+ while ((rlen -= np * 4) >= 0) {
+ u32 pci_space;
+ struct resource *res = NULL;
+ u64 addr, size;
+
+ pci_space = be32_to_cpup(&ranges[0]);
+ addr = of_translate_address(node, ranges + 3);
+ size = of_read_number(ranges + pna + 3, 2);
+ ranges += np;
+ switch ((pci_space >> 24) & 0x3) {
+ case 1: /* PCI IO space */
+ pr_info(" IO 0x%016llx..0x%016llx\n",
+ addr, addr + size - 1);
+ hose->io_map_base =
+ (unsigned long)ioremap(addr, size);
+ res = hose->io_resource;
+ res->flags = IORESOURCE_IO;
+ break;
+ case 2: /* PCI Memory space */
+ case 3: /* PCI 64 bits Memory space */
+ pr_info(" MEM 0x%016llx..0x%016llx\n",
+ addr, addr + size - 1);
+ res = hose->mem_resource;
+ res->flags = IORESOURCE_MEM;
+ break;
+ }
+ if (res != NULL) {
+ res->start = addr;
+ res->name = node->full_name;
+ res->end = res->start + size - 1;
+ res->parent = NULL;
+ res->sibling = NULL;
+ res->child = NULL;
+ }
+ }
+}
+#endif
+
static DEFINE_MUTEX(pci_scan_mutex);
void __devinit register_pci_controller(struct pci_controller *hose)
obj-y += irq.o prom.o py-console.o setup.o
obj-$(CONFIG_SMP) += smp.o
-
-ccflags-y := -Werror
#include <linux/bcd.h>
#include <linux/init.h>
#include <linux/kernel.h>
+#include <linux/export.h>
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/bootmem.h>
asic/ pci/
obj-$(CONFIG_USB) += powertv-usb.o
-
-ccflags-y := -Wall
obj-y += asic-calliope.o asic-cronus.o asic-gaia.o asic-zeus.o \
asic_devices.o asic_int.o irq_asic.o prealloc-calliope.o \
prealloc-cronus.o prealloc-cronuslite.o prealloc-gaia.o prealloc-zeus.o
-
-ccflags-y := -Wall -Werror
#
obj-$(CONFIG_PCI) += fixup-powertv.o
-
-ccflags-y := -Wall -Werror
* GNU General Public License for more details.
*/
#include <linux/kernel.h>
+#include <linux/export.h>
#include <linux/init.h>
#include <linux/ctype.h>
#include <linux/string.h>
*/
#include <linux/eisa.h>
#include <linux/init.h>
+#include <linux/export.h>
#include <linux/console.h>
#include <linux/fb.h>
#include <linux/screen_info.h>
typedef unsigned short __kernel_mode_t;
#define __kernel_mode_t __kernel_mode_t
-typedef unsigned short __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
-
typedef unsigned short __kernel_ipc_pid_t;
#define __kernel_ipc_pid_t __kernel_ipc_pid_t
#define DEBUG_SIG 0
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
/*
* atomically swap in the new signal mask, and wait for a signal.
*/
sizeof(frame->extramask)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(current_frame(), &frame->sc, &d0))
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(current_frame(), &frame->uc.uc_mcontext, &d0))
*/
static int handle_signal(int sig,
siginfo_t *info, struct k_sigaction *ka,
- sigset_t *oldset, struct pt_regs *regs)
+ struct pt_regs *regs)
{
+ sigset_t *oldset = sigmask_to_save();
int ret;
/* Are we from a system call? */
ret = setup_rt_frame(sig, ka, info, oldset, regs);
else
ret = setup_frame(sig, ka, oldset, regs);
+ if (ret)
+ return;
- if (ret == 0)
- block_sigmask(ka, sig);
-
- return ret;
+ signal_delivered(sig, info, ka, regs,
+ test_thread_flag(TIF_SINGLESTEP));
}
/*
{
struct k_sigaction ka;
siginfo_t info;
- sigset_t *oldset;
int signr;
/* we want the common case to go fast, which is why we may in certain
if (!user_mode(regs))
return;
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
- if (handle_signal(signr, &info, &ka, oldset, regs) == 0) {
- /* a signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
-
- tracehook_signal_handler(signr, &info, &ka, regs,
- test_thread_flag(TIF_SINGLESTEP));
+ if (handle_signal(signr, &info, &ka, regs) == 0) {
}
return;
/* if there's no signal to deliver, we just put the saved sigmask
* back */
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
+ restore_saved_sigmask();
}
/*
}
/* deal with pending signal delivery */
- if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
+ if (thread_info_flags & _TIF_SIGPENDING)
do_signal(regs);
if (thread_info_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(current_frame());
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
#define DEBUG_SIG 0
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
asmlinkage long
_sys_sigaltstack(const stack_t *uss, stack_t *uoss, struct pt_regs *regs)
{
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
return -EFAULT;
}
-static inline int
+static inline void
handle_signal(unsigned long sig,
siginfo_t *info, struct k_sigaction *ka,
- sigset_t *oldset, struct pt_regs *regs)
+ struct pt_regs *regs)
{
int ret;
- ret = setup_rt_frame(sig, ka, info, oldset, regs);
+ ret = setup_rt_frame(sig, ka, info, sigmask_to_save(), regs);
if (ret)
- return ret;
-
- block_sigmask(ka, sig);
+ return;
- return 0;
+ signal_delivered(sig, info, ka, regs,
+ test_thread_flag(TIF_SINGLESTEP));
}
/*
if (signr <= 0) {
/* no signal to deliver so we just put the saved sigmask
* back */
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
-
+ restore_saved_sigmask();
} else { /* signr > 0 */
- sigset_t *oldset;
-
- if (current_thread_info()->flags & _TIF_RESTORE_SIGMASK)
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
/* Whee! Actually deliver the signal. */
- if (!handle_signal(signr, &info, &ka, oldset, regs)) {
- /* a signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag */
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- }
-
- tracehook_signal_handler(signr, &info, &ka, regs,
- test_thread_flag(TIF_SINGLESTEP));
+ handle_signal(signr, &info, &ka, regs);
}
return;
if (current_thread_info()->flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
select IRQ_PER_CPU
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_SMP_IDLE_THREAD
+ select GENERIC_STRNCPY_FROM_USER
help
The PA-RISC microprocessor is designed by Hewlett-Packard and used
typedef unsigned short __kernel_mode_t;
#define __kernel_mode_t __kernel_mode_t
-typedef unsigned short __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
-
typedef unsigned short __kernel_ipc_pid_t;
#define __kernel_ipc_pid_t __kernel_ipc_pid_t
#define cpu_number_map(cpu) (cpu)
#define cpu_logical_map(cpu) (cpu)
-extern void smp_send_reschedule(int cpu);
extern void smp_send_all_nop(void);
extern void arch_send_call_function_single_ipi(int cpu);
while(1)
;
}
-extern int __cpu_up (unsigned int cpu);
#endif /* __ASM_SMP_H */
unsigned int st_dev; /* dev_t is 32 bits on parisc */
ino_t st_ino; /* 32 bits */
mode_t st_mode; /* 16 bits */
- nlink_t st_nlink; /* 16 bits */
+ unsigned short st_nlink; /* 16 bits */
unsigned short st_reserved1; /* old st_uid */
unsigned short st_reserved2; /* old st_gid */
unsigned int st_rdev;
unsigned int st_dev; /* dev_t is 32 bits on parisc */
ino_t st_ino; /* 32 bits */
mode_t st_mode; /* 16 bits */
- nlink_t st_nlink; /* 16 bits */
+ unsigned short st_nlink; /* 16 bits */
unsigned short st_reserved1; /* old st_uid */
unsigned short st_reserved2; /* old st_gid */
unsigned int st_rdev;
#define _TIF_BLOCKSTEP (1 << TIF_BLOCKSTEP)
#define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | \
- _TIF_NEED_RESCHED | _TIF_RESTORE_SIGMASK)
+ _TIF_NEED_RESCHED)
#endif /* __KERNEL__ */
extern unsigned long lcopy_to_user(void __user *, const void *, unsigned long);
extern unsigned long lcopy_from_user(void *, const void __user *, unsigned long);
extern unsigned long lcopy_in_user(void __user *, const void __user *, unsigned long);
-extern long lstrncpy_from_user(char *, const char __user *, long);
+extern long strncpy_from_user(char *, const char __user *, long);
extern unsigned lclear_user(void __user *,unsigned long);
extern long lstrnlen_user(const char __user *,long);
-
/*
* Complex access routines -- macros
*/
+#define user_addr_max() (~0UL)
-#define strncpy_from_user lstrncpy_from_user
#define strnlen_user lstrnlen_user
#define strlen_user(str) lstrnlen_user(str, 0x7fffffffL)
#define clear_user lclear_user
* entry (identifying the physical page) and %r23 up with
* the from tlb entry (or nothing if only a to entry---for
* clear_user_page_asm) */
- .macro do_alias spc,tmp,tmp1,va,pte,prot,fault
+ .macro do_alias spc,tmp,tmp1,va,pte,prot,fault,patype
cmpib,COND(<>),n 0,\spc,\fault
ldil L%(TMPALIAS_MAP_START),\tmp
#if defined(CONFIG_64BIT) && (TMPALIAS_MAP_START >= 0x80000000)
*/
cmpiclr,= 0x01,\tmp,%r0
ldi (_PAGE_DIRTY|_PAGE_READ|_PAGE_WRITE),\prot
-#ifdef CONFIG_64BIT
+.ifc \patype,20
depd,z \prot,8,7,\prot
-#else
+.else
+.ifc \patype,11
depw,z \prot,8,7,\prot
-#endif
+.else
+ .error "undefined PA type to do_alias"
+.endif
+.endif
/*
* OK, it is in the temp alias region, check whether "from" or "to".
* Check "subtle" note in pacache.S re: r23/r26.
/* As above */
mfctl %cr30,%r1
LDREG TI_FLAGS(%r1),%r19
- ldi (_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK|_TIF_NOTIFY_RESUME), %r20
+ ldi (_TIF_SIGPENDING|_TIF_NOTIFY_RESUME), %r20
and,COND(<>) %r19, %r20, %r0
b,n intr_restore /* skip past if we've nothing to do */
nop
dtlb_check_alias_20w:
- do_alias spc,t0,t1,va,pte,prot,dtlb_fault
+ do_alias spc,t0,t1,va,pte,prot,dtlb_fault,20
idtlbt pte,prot
nop
nadtlb_check_alias_20w:
- do_alias spc,t0,t1,va,pte,prot,nadtlb_emulate
+ do_alias spc,t0,t1,va,pte,prot,nadtlb_emulate,20
idtlbt pte,prot
nop
dtlb_check_alias_11:
- do_alias spc,t0,t1,va,pte,prot,dtlb_fault
+ do_alias spc,t0,t1,va,pte,prot,dtlb_fault,11
idtlba pte,(va)
idtlbp prot,(va)
nop
nadtlb_check_alias_11:
- do_alias spc,t0,t1,va,pte,prot,nadtlb_emulate
+ do_alias spc,t0,t1,va,pte,prot,nadtlb_emulate,11
idtlba pte,(va)
idtlbp prot,(va)
nop
dtlb_check_alias_20:
- do_alias spc,t0,t1,va,pte,prot,dtlb_fault
+ do_alias spc,t0,t1,va,pte,prot,dtlb_fault,20
idtlbt pte,prot
nop
nadtlb_check_alias_20:
- do_alias spc,t0,t1,va,pte,prot,nadtlb_emulate
+ do_alias spc,t0,t1,va,pte,prot,nadtlb_emulate,20
idtlbt pte,prot
nop
naitlb_check_alias_20w:
- do_alias spc,t0,t1,va,pte,prot,naitlb_fault
+ do_alias spc,t0,t1,va,pte,prot,naitlb_fault,20
iitlbt pte,prot
nop
naitlb_check_alias_11:
- do_alias spc,t0,t1,va,pte,prot,itlb_fault
+ do_alias spc,t0,t1,va,pte,prot,itlb_fault,11
iitlba pte,(%sr0, va)
iitlbp prot,(%sr0, va)
nop
naitlb_check_alias_20:
- do_alias spc,t0,t1,va,pte,prot,naitlb_fault
+ do_alias spc,t0,t1,va,pte,prot,naitlb_fault,20
iitlbt pte,prot
.import do_signal,code
syscall_check_sig:
LDREG TI_FLAGS-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r19
- ldi (_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK), %r26
+ ldi (_TIF_SIGPENDING|_TIF_NOTIFY_RESUME), %r26
and,COND(<>) %r19, %r26, %r0
b,n syscall_restore /* skip past if we've nothing to do */
#endif
#include <asm/uaccess.h>
-EXPORT_SYMBOL(lstrncpy_from_user);
EXPORT_SYMBOL(lclear_user);
EXPORT_SYMBOL(lstrnlen_user);
#define DBG(LEVEL, ...)
#endif
-
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
/* gcc will complain if a pointer is cast to an integer of different
* size. If you really need to do this (and we do for an ELF32 user
* application in an ELF64 kernel) then you have to do a cast to an
goto give_sigsegv;
}
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
/* Good thing we saved the old gr[30], eh? */
static long
handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
- sigset_t *oldset, struct pt_regs *regs, int in_syscall)
+ struct pt_regs *regs, int in_syscall)
{
+ sigset_t *oldset = sigmask_to_save();
DBG(1,"handle_signal: sig=%ld, ka=%p, info=%p, oldset=%p, regs=%p\n",
sig, ka, info, oldset, regs);
if (!setup_rt_frame(sig, ka, info, oldset, regs, in_syscall))
return 0;
- block_sigmask(ka, sig);
-
- tracehook_signal_handler(sig, info, ka, regs,
+ signal_delivered(sig, info, ka, regs,
test_thread_flag(TIF_SINGLESTEP) ||
test_thread_flag(TIF_BLOCKSTEP));
+ DBG(1,KERN_DEBUG "do_signal: Exit (success), regs->gr[28] = %ld\n",
+ regs->gr[28]);
+
return 1;
}
siginfo_t info;
struct k_sigaction ka;
int signr;
- sigset_t *oldset;
- DBG(1,"\ndo_signal: oldset=0x%p, regs=0x%p, sr7 %#lx, in_syscall=%d\n",
- oldset, regs, regs->sr[7], in_syscall);
+ DBG(1,"\ndo_signal: regs=0x%p, sr7 %#lx, in_syscall=%d\n",
+ regs, regs->sr[7], in_syscall);
/* Everyone else checks to see if they are in kernel mode at
this point and exits if that's the case. I'm not sure why
we would be called in that case, but for some reason we
are. */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
- DBG(1,"do_signal: oldset %08lx / %08lx\n",
- oldset->sig[0], oldset->sig[1]);
-
-
/* May need to force signal if handle_signal failed to deliver */
while (1) {
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
DBG(3,"do_signal: signr = %d, regs->gr[28] = %ld\n", signr, regs->gr[28]);
/* Whee! Actually deliver the signal. If the
delivery failed, we need to continue to iterate in
this loop so we can deliver the SIGSEGV... */
- if (handle_signal(signr, &info, &ka, oldset,
- regs, in_syscall)) {
- DBG(1,KERN_DEBUG "do_signal: Exit (success), regs->gr[28] = %ld\n",
- regs->gr[28]);
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
+ if (handle_signal(signr, &info, &ka, regs, in_syscall))
return;
- }
}
/* end of while(1) looping forever if we can't force a signal */
DBG(1,"do_signal: Exit (not delivered), regs->gr[28] = %ld\n",
regs->gr[28]);
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
-
- return;
+ restore_saved_sigmask();
}
void do_notify_resume(struct pt_regs *regs, long in_syscall)
{
- if (test_thread_flag(TIF_SIGPENDING) ||
- test_thread_flag(TIF_RESTORE_SIGMASK))
+ if (test_thread_flag(TIF_SIGPENDING))
do_signal(regs, in_syscall);
if (test_thread_flag(TIF_NOTIFY_RESUME)) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
#define DBG(LEVEL, ...)
#endif
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
inline void
sigset_32to64(sigset_t *s64, compat_sigset_t *s32)
{
. = KERNEL_BINARY_TEXT_START;
_text = .; /* Text and read-only data */
- .text ALIGN(16) : {
+ .head ALIGN(16) : {
HEAD_TEXT
+ } = 0
+ .text ALIGN(16) : {
TEXT_TEXT
SCHED_TEXT
LOCK_TEXT
*(.fixup)
*(.lock.text) /* out-of-line lock text */
*(.gnu.warning)
- } = 0
+ }
/* End of text section */
_etext = .;
bv %r0(%r1)
.endm
- /*
- * long lstrncpy_from_user(char *dst, const char *src, long n)
- *
- * Returns -EFAULT if exception before terminator,
- * N if the entire buffer filled,
- * otherwise strlen (i.e. excludes zero byte)
- */
-
-ENTRY(lstrncpy_from_user)
- .proc
- .callinfo NO_CALLS
- .entry
- comib,= 0,%r24,$lsfu_done
- copy %r24,%r23
- get_sr
-1: ldbs,ma 1(%sr1,%r25),%r1
-$lsfu_loop:
- stbs,ma %r1,1(%r26)
- comib,=,n 0,%r1,$lsfu_done
- addib,<>,n -1,%r24,$lsfu_loop
-2: ldbs,ma 1(%sr1,%r25),%r1
-$lsfu_done:
- sub %r23,%r24,%r28
-$lsfu_exit:
- bv %r0(%r2)
- nop
- .exit
-ENDPROC(lstrncpy_from_user)
-
- .section .fixup,"ax"
-3: fixup_branch $lsfu_exit
- ldi -EFAULT,%r28
- .previous
-
- .section __ex_table,"aw"
- ASM_ULONG_INSN 1b,3b
- ASM_ULONG_INSN 2b,3b
- .previous
-
- .procend
-
/*
* unsigned long lclear_user(void *to, unsigned long n)
*
typedef long __kernel_ptrdiff_t;
#define __kernel_size_t __kernel_size_t
-typedef unsigned short __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
-
typedef short __kernel_ipc_pid_t;
#define __kernel_ipc_pid_t __kernel_ipc_pid_t
#endif
unsigned long st_dev;
ino_t st_ino;
#ifdef __powerpc64__
- nlink_t st_nlink;
+ unsigned short st_nlink;
mode_t st_mode;
#else
mode_t st_mode;
- nlink_t st_nlink;
+ unsigned short st_nlink;
#endif
uid_t st_uid;
gid_t st_gid;
{
struct thread_info *ti = current_thread_info();
ti->local_flags |= _TLF_RESTORE_SIGMASK;
- set_bit(TIF_SIGPENDING, &ti->flags);
+ WARN_ON(!test_bit(TIF_SIGPENDING, &ti->flags));
+}
+static inline void clear_restore_sigmask(void)
+{
+ current_thread_info()->local_flags &= ~_TLF_RESTORE_SIGMASK;
+}
+static inline bool test_restore_sigmask(void)
+{
+ return current_thread_info()->local_flags & _TLF_RESTORE_SIGMASK;
+}
+static inline bool test_and_clear_restore_sigmask(void)
+{
+ struct thread_info *ti = current_thread_info();
+ if (!(ti->local_flags & _TLF_RESTORE_SIGMASK))
+ return false;
+ ti->local_flags &= ~_TLF_RESTORE_SIGMASK;
+ return true;
}
static inline bool test_thread_local_flags(unsigned int flags)
return (void __user *)newsp;
}
-
-/*
- * Restore the user process's signal mask
- */
-void restore_sigmask(sigset_t *set)
-{
- sigdelsetmask(set, ~_BLOCKABLE);
- set_current_blocked(set);
-}
-
static void check_syscall_restart(struct pt_regs *regs, struct k_sigaction *ka,
int has_handler)
{
static int do_signal(struct pt_regs *regs)
{
- sigset_t *oldset;
+ sigset_t *oldset = sigmask_to_save();
siginfo_t info;
int signr;
struct k_sigaction ka;
int ret;
int is32 = is_32bit_task();
- if (current_thread_info()->local_flags & _TLF_RESTORE_SIGMASK)
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
/* Is there any syscall restart business here ? */
check_syscall_restart(regs, &ka, signr > 0);
if (signr <= 0) {
- struct thread_info *ti = current_thread_info();
/* No signal to deliver -- put the saved sigmask back */
- if (ti->local_flags & _TLF_RESTORE_SIGMASK) {
- ti->local_flags &= ~_TLF_RESTORE_SIGMASK;
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
+ restore_saved_sigmask();
regs->trap = 0;
return 0; /* no signals delivered */
}
regs->trap = 0;
if (ret) {
- block_sigmask(&ka, signr);
-
- /*
- * A signal was successfully delivered; the saved sigmask is in
- * its frame, and we can clear the TLF_RESTORE_SIGMASK flag.
- */
- current_thread_info()->local_flags &= ~_TLF_RESTORE_SIGMASK;
-
- /*
- * Let tracing know that we've done the handler setup.
- */
- tracehook_signal_handler(signr, &info, &ka, regs,
+ signal_delivered(signr, &info, &ka, regs,
test_thread_flag(TIF_SINGLESTEP));
}
if (thread_info_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
#ifndef _POWERPC_ARCH_SIGNAL_H
#define _POWERPC_ARCH_SIGNAL_H
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
extern void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags);
extern void __user * get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
size_t frame_size, int is_32);
-extern void restore_sigmask(sigset_t *set);
extern int handle_signal32(unsigned long sig, struct k_sigaction *ka,
siginfo_t *info, sigset_t *oldset,
if (!access_ok(VERIFY_READ, mcp, sizeof(*mcp)))
return -EFAULT;
#endif
- restore_sigmask(&set);
+ set_current_blocked(&set);
if (restore_user_regs(regs, mcp, sig))
return -EFAULT;
set.sig[0] = sigctx.oldmask;
set.sig[1] = sigctx._unused[3];
#endif
- restore_sigmask(&set);
+ set_current_blocked(&set);
sr = (struct mcontext __user *)from_user_ptr(sigctx.regs);
addr = sr;
if (__copy_from_user(&set, &new_ctx->uc_sigmask, sizeof(set)))
do_exit(SIGSEGV);
- restore_sigmask(&set);
+ set_current_blocked(&set);
if (restore_sigcontext(regs, NULL, 0, &new_ctx->uc_mcontext))
do_exit(SIGSEGV);
if (__copy_from_user(&set, &uc->uc_sigmask, sizeof(set)))
goto badframe;
- restore_sigmask(&set);
+ set_current_blocked(&set);
if (restore_sigcontext(regs, NULL, 1, &uc->uc_mcontext))
goto badframe;
unsigned long action, void *hcpu)
{
unsigned int cpu = (unsigned int)(long)hcpu;
-#ifdef CONFIG_HOTPLUG_CPU
- struct task_struct *p;
-#endif
+
/* We don't touch CPU 0 map, it's allocated at aboot and kept
* around forever
*/
stale_map[cpu] = NULL;
/* We also clear the cpu_vm_mask bits of CPUs going away */
- read_lock(&tasklist_lock);
- for_each_process(p) {
- if (p->mm)
- cpumask_clear_cpu(cpu, mm_cpumask(p->mm));
- }
- read_unlock(&tasklist_lock);
+ clear_tasks_mm_cpumask(cpu);
break;
#endif /* CONFIG_HOTPLUG_CPU */
}
select ARCH_SAVE_PAGE_KEYS if HIBERNATION
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
+ select HAVE_CMPXCHG_LOCAL
select ARCH_DISCARD_MEMBLOCK
select ARCH_INLINE_SPIN_TRYLOCK
select ARCH_INLINE_SPIN_TRYLOCK_BH
*
*/
-#ifdef __KERNEL__
-
#ifndef _LINUX_BITOPS_H
#error only <linux/bitops.h> can be included directly
#endif
extern const char _zb_findmap[];
extern const char _sb_findmap[];
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
#define __BITOPS_ALIGN 3
#define __BITOPS_WORDSIZE 32
: "d" (__val), "Q" (*(unsigned long *) __addr) \
: "cc");
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
#define __BITOPS_ALIGN 7
#define __BITOPS_WORDSIZE 64
: "d" (__val), "Q" (*(unsigned long *) __addr) \
: "cc");
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
#define __BITOPS_WORDS(bits) (((bits)+__BITOPS_WORDSIZE-1)/__BITOPS_WORDSIZE)
#define __BITOPS_BARRIER() asm volatile("" : : : "memory")
unsigned long bytes = 0;
asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
" ahi %1,-1\n"
" sra %1,5\n"
" jz 1f\n"
unsigned long bytes = 0;
asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
" ahi %1,-1\n"
" sra %1,5\n"
" jz 1f\n"
*/
static inline unsigned long __ffz_word(unsigned long nr, unsigned long word)
{
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
if ((word & 0xffffffff) == 0xffffffff) {
word >>= 32;
nr += 32;
*/
static inline unsigned long __ffs_word(unsigned long nr, unsigned long word)
{
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
if ((word & 0xffffffff) == 0) {
word >>= 32;
nr += 32;
unsigned long word;
p = (unsigned long *)((unsigned long) p + offset);
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
asm volatile(
" ic %0,%O1(%R1)\n"
" icm %0,2,%O1+1(%R1)\n"
#include <asm-generic/bitops/ext2-atomic-setbit.h>
-
-#endif /* __KERNEL__ */
-
#endif /* _S390_BITOPS_H */
#include <linux/spinlock.h>
#include <asm/types.h>
-#ifdef __KERNEL__
-
#define LPM_ANYPATH 0xff
#define __MAX_CSSID 0
int chsc_sstpi(void *page, void *result, size_t size);
#endif
-
-#endif
" cs %0,0,%4\n"
" jl 0b\n"
: "=&d" (old), "=Q" (*(int *) addr)
- : "d" (x << shift), "d" (~(255 << shift)),
+ : "d" ((x & 0xff) << shift), "d" (~(0xff << shift)),
"Q" (*(int *) addr) : "memory", "cc", "0");
return old >> shift;
case 2:
" cs %0,0,%4\n"
" jl 0b\n"
: "=&d" (old), "=Q" (*(int *) addr)
- : "d" (x << shift), "d" (~(65535 << shift)),
+ : "d" ((x & 0xffff) << shift), "d" (~(0xffff << shift)),
"Q" (*(int *) addr) : "memory", "cc", "0");
return old >> shift;
case 4:
" nr %1,%5\n"
" jnz 0b\n"
"1:"
- : "=&d" (prev), "=&d" (tmp), "=Q" (*(int *) ptr)
- : "d" (old << shift), "d" (new << shift),
- "d" (~(255 << shift)), "Q" (*(int *) ptr)
+ : "=&d" (prev), "=&d" (tmp), "+Q" (*(int *) addr)
+ : "d" ((old & 0xff) << shift),
+ "d" ((new & 0xff) << shift),
+ "d" (~(0xff << shift))
: "memory", "cc");
return prev >> shift;
case 2:
" nr %1,%5\n"
" jnz 0b\n"
"1:"
- : "=&d" (prev), "=&d" (tmp), "=Q" (*(int *) ptr)
- : "d" (old << shift), "d" (new << shift),
- "d" (~(65535 << shift)), "Q" (*(int *) ptr)
+ : "=&d" (prev), "=&d" (tmp), "+Q" (*(int *) addr)
+ : "d" ((old & 0xffff) << shift),
+ "d" ((new & 0xffff) << shift),
+ "d" (~(0xffff << shift))
: "memory", "cc");
return prev >> shift;
case 4:
return old;
}
-#define cmpxchg(ptr, o, n) \
- ((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \
- (unsigned long)(n), sizeof(*(ptr))))
+#define cmpxchg(ptr, o, n) \
+({ \
+ __typeof__(*(ptr)) __ret; \
+ __ret = (__typeof__(*(ptr))) \
+ __cmpxchg((ptr), (unsigned long)(o), (unsigned long)(n), \
+ sizeof(*(ptr))); \
+ __ret; \
+})
#ifdef CONFIG_64BIT
#define cmpxchg64(ptr, o, n) \
" cds %0,%2,%1"
: "+&d" (rp_old), "=Q" (ptr)
: "d" (rp_new), "Q" (ptr)
- : "cc");
+ : "memory", "cc");
return rp_old.pair;
}
-#define cmpxchg64(ptr, o, n) \
- ((__typeof__(*(ptr)))__cmpxchg64((ptr), \
- (unsigned long long)(o), \
- (unsigned long long)(n)))
+
+#define cmpxchg64(ptr, o, n) \
+({ \
+ __typeof__(*(ptr)) __ret; \
+ __ret = (__typeof__(*(ptr))) \
+ __cmpxchg64((ptr), \
+ (unsigned long long)(o), \
+ (unsigned long long)(n)); \
+ __ret; \
+})
#endif /* CONFIG_64BIT */
#include <asm-generic/cmpxchg-local.h>
* them available.
*/
#define cmpxchg_local(ptr, o, n) \
- ((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o), \
- (unsigned long)(n), sizeof(*(ptr))))
+({ \
+ __typeof__(*(ptr)) __ret; \
+ __ret = (__typeof__(*(ptr))) \
+ __cmpxchg_local((ptr), (unsigned long)(o), \
+ (unsigned long)(n), sizeof(*(ptr))); \
+ __ret; \
+})
#define cmpxchg64_local(ptr, o, n) cmpxchg64((ptr), (o), (n))
static inline unsigned long __div(unsigned long long n, unsigned long base)
{
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
register_pair rp;
rp.pair = n >> 1;
asm ("dr %0,%1" : "+d" (rp) : "d" (base >> 1));
return rp.subreg.odd;
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
return n / base;
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
}
#define cputime_one_jiffy jiffies_to_cputime(1)
struct timespec *value)
{
unsigned long long __cputime = (__force unsigned long long) cputime;
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
register_pair rp;
rp.pair = __cputime >> 1;
struct timeval *value)
{
unsigned long long __cputime = (__force unsigned long long) cputime;
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
register_pair rp;
rp.pair = __cputime >> 1;
#ifndef __ASM_CTL_REG_H
#define __ASM_CTL_REG_H
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
#define __ctl_load(array, low, high) ({ \
typedef struct { char _[sizeof(array)]; } addrtype; \
: "i" (low), "i" (high)); \
})
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
#define __ctl_load(array, low, high) ({ \
typedef struct { char _[sizeof(array)]; } addrtype; \
: "i" (low), "i" (high)); \
})
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
#define __ctl_set_bit(cr, bit) ({ \
unsigned long __dummy; \
#ifndef _S390_CURRENT_H
#define _S390_CURRENT_H
-#ifdef __KERNEL__
#include <asm/lowcore.h>
struct task_struct;
#define current ((struct task_struct *const)S390_lowcore.current_task)
-#endif
-
#endif /* !(_S390_CURRENT_H) */
/*
* These are used to set parameters in the core dumps.
*/
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
#define ELF_CLASS ELFCLASS32
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
#define ELF_CLASS ELFCLASS64
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
#define ELF_DATA ELFDATA2MSB
#define ELF_ARCH EM_S390
extern char elf_platform[];
#define ELF_PLATFORM (elf_platform)
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
#define SET_PERSONALITY(ex) set_personality(PER_LINUX)
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
#define SET_PERSONALITY(ex) \
do { \
if (personality(current->personality) != PER_LINUX32) \
else \
clear_thread_flag(TIF_31BIT); \
} while (0)
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
#define STACK_RND_MASK 0x7ffUL
#ifndef _ASM_S390_FUTEX_H
#define _ASM_S390_FUTEX_H
-#ifdef __KERNEL__
-
#include <linux/futex.h>
#include <linux/uaccess.h>
#include <asm/errno.h>
return uaccess.futex_atomic_cmpxchg(uval, uaddr, oldval, newval);
}
-#endif /* __KERNEL__ */
#endif /* _ASM_S390_FUTEX_H */
#include <asm/cio.h>
#include <asm/uaccess.h>
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
#define IDA_SIZE_LOG 12 /* 11 for 2k , 12 for 4k */
#else
#define IDA_SIZE_LOG 11 /* 11 for 2k , 12 for 4k */
static inline int
idal_is_needed(void *vaddr, unsigned int length)
{
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
return ((__pa(vaddr) + length - 1) >> 31) != 0;
#else
return 0;
static inline int
set_normalized_cda(struct ccw1 * ccw, void *vaddr)
{
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
unsigned int nridaws;
unsigned long *idal;
static inline void
clear_normalized_cda(struct ccw1 * ccw)
{
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
if (ccw->flags & CCW_FLAG_IDA) {
kfree((void *)(unsigned long) ccw->cda);
ccw->flags &= ~CCW_FLAG_IDA;
static inline int
__idal_buffer_is_needed(struct idal_buffer *ib)
{
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
return ib->size > (4096ul << ib->page_order) ||
idal_is_needed(ib->data[0], ib->size);
#else
#ifndef _S390_IO_H
#define _S390_IO_H
-#ifdef __KERNEL__
-
#include <asm/page.h>
#define IO_SPACE_LIMIT 0xffffffff
*/
#define xlate_dev_kmem_ptr(p) p
-#endif /* __KERNEL__ */
-
#endif
EXTINT_VRT,
EXTINT_SCP,
EXTINT_IUC,
- EXTINT_CPM,
+ EXTINT_CMS,
+ EXTINT_CMC,
IOINT_CIO,
IOINT_QAI,
IOINT_DAS,
#ifndef _S390_KEXEC_H
#define _S390_KEXEC_H
-#ifdef __KERNEL__
-#include <asm/page.h>
-#endif
#include <asm/processor.h>
+#include <asm/page.h>
/*
* KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return.
* I.e. Maximum page that is mapped directly into kernel memory,
-#ifdef __KERNEL__
#ifndef _ASM_KMAP_TYPES_H
#define _ASM_KMAP_TYPES_H
#include <asm-generic/kmap_types.h>
#endif
-#endif /* __KERNEL__ */
#define destroy_context(mm) do { } while (0)
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
#define LCTL_OPCODE "lctl"
#else
#define LCTL_OPCODE "lctlg"
struct mod_arch_syminfo *syminfo;
};
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
#define ElfW(x) Elf64_ ## x
#define ELFW(x) ELF64_ ## x
#else
#define OS_INFO_VMCOREINFO 0
#define OS_INFO_REIPL_BLOCK 1
-#define OS_INFO_INIT_FN 2
struct os_info_entry {
u64 addr;
u16 version_minor;
u64 crashkernel_addr;
u64 crashkernel_size;
- struct os_info_entry entry[3];
- u8 reserved[4004];
+ struct os_info_entry entry[2];
+ u8 reserved[4024];
} __packed;
void os_info_init(void);
* per cpu area, use weak definitions to force the compiler to
* generate external references.
*/
-#if defined(CONFIG_SMP) && defined(__s390x__) && defined(MODULE)
+#if defined(CONFIG_SMP) && defined(CONFIG_64BIT) && defined(MODULE)
#define ARCH_NEEDS_WEAK_PER_CPU
#endif
clear_table(crst, entry, sizeof(unsigned long)*2048);
}
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
static inline unsigned long pgd_entry_type(struct mm_struct *mm)
{
#define pgd_populate(mm, pgd, pud) BUG()
#define pud_populate(mm, pud, pmd) BUG()
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
static inline unsigned long pgd_entry_type(struct mm_struct *mm)
{
pud_val(*pud) = _REGION3_ENTRY | __pa(pmd);
}
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
* table can map
* PGDIR_SHIFT determines what a third-level page table entry can map
*/
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
# define PMD_SHIFT 20
# define PUD_SHIFT 20
# define PGDIR_SHIFT 20
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
# define PMD_SHIFT 20
# define PUD_SHIFT 31
# define PGDIR_SHIFT 42
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
#define PMD_SIZE (1UL << PMD_SHIFT)
#define PMD_MASK (~(PMD_SIZE-1))
* that leads to 1024 pte per pgd
*/
#define PTRS_PER_PTE 256
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
#define PTRS_PER_PMD 1
#define PTRS_PER_PUD 1
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
#define PTRS_PER_PMD 2048
#define PTRS_PER_PUD 2048
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
#define PTRS_PER_PGD 2048
#define FIRST_USER_ADDRESS 0
* swap pte is 1011 and 0001, 0011, 0101, 0111 are invalid.
*/
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
/* Bits in the segment table address-space-control-element */
#define _ASCE_SPACE_SWITCH 0x80000000UL /* space switch event */
#define KVM_UR_BIT 0x00008000UL
#define KVM_UC_BIT 0x00004000UL
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
/* Bits in the segment/region table address-space-control-element */
#define _ASCE_ORIGIN ~0xfffUL/* segment table origin */
#define KVM_UR_BIT 0x0000800000000000UL
#define KVM_UC_BIT 0x0000400000000000UL
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
/*
* A user page table pointer has the space-switch-event bit, the
/*
* pgd/pmd/pte query functions
*/
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
static inline int pgd_present(pgd_t pgd) { return 1; }
static inline int pgd_none(pgd_t pgd) { return 0; }
static inline int pud_none(pud_t pud) { return 0; }
static inline int pud_bad(pud_t pud) { return 0; }
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
static inline int pgd_present(pgd_t pgd)
{
return (pud_val(pud) & mask) != 0;
}
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
static inline int pmd_present(pmd_t pmd)
{
static inline void pgd_clear(pgd_t *pgd)
{
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
if ((pgd_val(*pgd) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R2)
pgd_val(*pgd) = _REGION2_ENTRY_EMPTY;
#endif
static inline void pud_clear(pud_t *pud)
{
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
if ((pud_val(*pud) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R3)
pud_val(*pud) = _REGION3_ENTRY_EMPTY;
#endif
static inline void __ptep_ipte(unsigned long address, pte_t *ptep)
{
if (!(pte_val(*ptep) & _PAGE_INVALID)) {
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
/* pto must point to the start of the segment table */
pte_t *pto = (pte_t *) (((unsigned long) ptep) & 0x7ffffc00);
#else
#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))
#define pgd_offset_k(address) pgd_offset(&init_mm, address)
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
#define pmd_deref(pmd) (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN)
#define pud_deref(pmd) ({ BUG(); 0UL; })
#define pud_offset(pgd, address) ((pud_t *) pgd)
#define pmd_offset(pud, address) ((pmd_t *) pud + pmd_index(address))
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
#define pmd_deref(pmd) (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN)
#define pud_deref(pud) (pud_val(pud) & _REGION_ENTRY_ORIGIN)
return pmd + pmd_index(address);
}
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
#define pfn_pte(pfn,pgprot) mk_pte_phys(__pa((pfn) << PAGE_SHIFT),(pgprot))
#define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT)
* 0000000000111111111122222222223333333333444444444455 5555 5 55566 66
* 0123456789012345678901234567890123456789012345678901 2345 6 78901 23
*/
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
#define __SWP_OFFSET_MASK (~0UL >> 12)
#else
#define __SWP_OFFSET_MASK (~0UL >> 11)
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
# define PTE_FILE_MAX_BITS 26
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
# define PTE_FILE_MAX_BITS 59
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
#define pte_to_pgoff(__pte) \
((((__pte).pte >> 12) << 7) + (((__pte).pte >> 1) & 0x7f))
typedef unsigned long __kernel_ino_t;
typedef unsigned short __kernel_mode_t;
-typedef unsigned short __kernel_nlink_t;
typedef unsigned short __kernel_ipc_pid_t;
typedef unsigned short __kernel_uid_t;
typedef unsigned short __kernel_gid_t;
typedef unsigned int __kernel_ino_t;
typedef unsigned int __kernel_mode_t;
-typedef unsigned int __kernel_nlink_t;
typedef int __kernel_ipc_pid_t;
typedef unsigned int __kernel_uid_t;
typedef unsigned int __kernel_gid_t;
#define __kernel_ino_t __kernel_ino_t
#define __kernel_mode_t __kernel_mode_t
-#define __kernel_nlink_t __kernel_nlink_t
#define __kernel_ipc_pid_t __kernel_ipc_pid_t
#define __kernel_uid_t __kernel_uid_t
#define __kernel_gid_t __kernel_gid_t
#include <asm/ptrace.h>
#include <asm/setup.h>
-#ifdef __KERNEL__
/*
* Default implementation of macro that returns current
* instruction pointer ("program counter").
}
extern void s390_adjust_jiffies(void);
-extern int get_cpu_capability(unsigned int *);
extern const struct seq_operations cpuinfo_op;
extern int sysctl_ieee_emulation_warnings;
/*
* User space process size: 2GB for 31 bit, 4TB or 8PT for 64 bit.
*/
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
#define TASK_SIZE (1UL << 31)
#define TASK_UNMAPPED_BASE (1UL << 30)
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
#define TASK_SIZE_OF(tsk) ((tsk)->mm->context.asce_limit)
#define TASK_UNMAPPED_BASE (test_thread_flag(TIF_31BIT) ? \
(1UL << 30) : (1UL << 41))
#define TASK_SIZE TASK_SIZE_OF(current)
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
-#ifdef __KERNEL__
-
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
#define STACK_TOP (1UL << 31)
#define STACK_TOP_MAX (1UL << 31)
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
#define STACK_TOP (1UL << (test_thread_flag(TIF_31BIT) ? 31:42))
#define STACK_TOP_MAX (1UL << 42)
-#endif /* __s390x__ */
-
-
-#endif
+#endif /* CONFIG_64BIT */
#define HAVE_ARCH_PICK_MMAP_LAYOUT
*/
static inline void __load_psw(psw_t psw)
{
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
asm volatile("lpsw %0" : : "Q" (psw) : "cc");
#else
asm volatile("lpswe %0" : : "Q" (psw) : "cc");
psw.mask = mask;
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
asm volatile(
" basr %0,0\n"
"0: ahi %0,1f-0b\n"
" lpsw %1\n"
"1:"
: "=&d" (addr), "=Q" (psw) : "Q" (psw) : "memory", "cc");
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
asm volatile(
" larl %0,1f\n"
" stg %0,%O1+8(%R1)\n"
" lpswe %1\n"
"1:"
: "=&d" (addr), "=Q" (psw) : "Q" (psw) : "memory", "cc");
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
}
/*
*/
static inline unsigned long __rewind_psw(psw_t psw, unsigned long ilc)
{
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
if (psw.addr & PSW_ADDR_AMODE)
/* 31 bit mode */
return (psw.addr - ilc) | PSW_ADDR_AMODE;
* Store status and then load disabled wait psw,
* the processor is dead afterwards
*/
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
asm volatile(
" stctl 0,0,0(%2)\n"
" ni 0(%2),0xef\n" /* switch off protection */
" lpsw 0(%1)"
: "=m" (ctl_buf)
: "a" (&dw_psw), "a" (&ctl_buf), "m" (dw_psw) : "cc");
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
asm volatile(
" stctg 0,0,0(%2)\n"
" ni 4(%2),0xef\n" /* switch off protection */
" lpswe 0(%1)"
: "=m" (ctl_buf)
: "a" (&dw_psw), "a" (&ctl_buf), "m" (dw_psw) : "cc", "0", "1");
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
while (1);
}
#define ARCH_LOW_ADDRESS_LIMIT 0x7fffffffUL
-#endif
-
/*
* Helper macro for exception table entries
*/
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
#define EX_TABLE(_fault,_target) \
".section __ex_table,\"a\"\n" \
" .align 4\n" \
#error "please don't include asm/rwsem.h directly, use linux/rwsem.h instead"
#endif
-#ifdef __KERNEL__
-
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
#define RWSEM_UNLOCKED_VALUE 0x00000000
#define RWSEM_ACTIVE_BIAS 0x00000001
#define RWSEM_ACTIVE_MASK 0x0000ffff
#define RWSEM_WAITING_BIAS (-0x00010000)
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
#define RWSEM_UNLOCKED_VALUE 0x0000000000000000L
#define RWSEM_ACTIVE_BIAS 0x0000000000000001L
#define RWSEM_ACTIVE_MASK 0x00000000ffffffffL
#define RWSEM_WAITING_BIAS (-0x0000000100000000L)
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
#define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS
#define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)
signed long old, new;
asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
" l %0,%2\n"
"0: lr %1,%0\n"
" ahi %1,%4\n"
" cs %0,%1,%2\n"
" jl 0b"
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
" lg %0,%2\n"
"0: lgr %1,%0\n"
" aghi %1,%4\n"
" csg %0,%1,%2\n"
" jl 0b"
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
: "=&d" (old), "=&d" (new), "=Q" (sem->count)
: "Q" (sem->count), "i" (RWSEM_ACTIVE_READ_BIAS)
: "cc", "memory");
signed long old, new;
asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
" l %0,%2\n"
"0: ltr %1,%0\n"
" jm 1f\n"
" cs %0,%1,%2\n"
" jl 0b\n"
"1:"
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
" lg %0,%2\n"
"0: ltgr %1,%0\n"
" jm 1f\n"
" csg %0,%1,%2\n"
" jl 0b\n"
"1:"
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
: "=&d" (old), "=&d" (new), "=Q" (sem->count)
: "Q" (sem->count), "i" (RWSEM_ACTIVE_READ_BIAS)
: "cc", "memory");
tmp = RWSEM_ACTIVE_WRITE_BIAS;
asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
" l %0,%2\n"
"0: lr %1,%0\n"
" a %1,%4\n"
" cs %0,%1,%2\n"
" jl 0b"
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
" lg %0,%2\n"
"0: lgr %1,%0\n"
" ag %1,%4\n"
" csg %0,%1,%2\n"
" jl 0b"
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
: "=&d" (old), "=&d" (new), "=Q" (sem->count)
: "Q" (sem->count), "m" (tmp)
: "cc", "memory");
signed long old;
asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
" l %0,%1\n"
"0: ltr %0,%0\n"
" jnz 1f\n"
" cs %0,%3,%1\n"
" jl 0b\n"
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
" lg %0,%1\n"
"0: ltgr %0,%0\n"
" jnz 1f\n"
" csg %0,%3,%1\n"
" jl 0b\n"
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
"1:"
: "=&d" (old), "=Q" (sem->count)
: "Q" (sem->count), "d" (RWSEM_ACTIVE_WRITE_BIAS)
signed long old, new;
asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
" l %0,%2\n"
"0: lr %1,%0\n"
" ahi %1,%4\n"
" cs %0,%1,%2\n"
" jl 0b"
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
" lg %0,%2\n"
"0: lgr %1,%0\n"
" aghi %1,%4\n"
" csg %0,%1,%2\n"
" jl 0b"
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
: "=&d" (old), "=&d" (new), "=Q" (sem->count)
: "Q" (sem->count), "i" (-RWSEM_ACTIVE_READ_BIAS)
: "cc", "memory");
tmp = -RWSEM_ACTIVE_WRITE_BIAS;
asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
" l %0,%2\n"
"0: lr %1,%0\n"
" a %1,%4\n"
" cs %0,%1,%2\n"
" jl 0b"
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
" lg %0,%2\n"
"0: lgr %1,%0\n"
" ag %1,%4\n"
" csg %0,%1,%2\n"
" jl 0b"
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
: "=&d" (old), "=&d" (new), "=Q" (sem->count)
: "Q" (sem->count), "m" (tmp)
: "cc", "memory");
tmp = -RWSEM_WAITING_BIAS;
asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
" l %0,%2\n"
"0: lr %1,%0\n"
" a %1,%4\n"
" cs %0,%1,%2\n"
" jl 0b"
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
" lg %0,%2\n"
"0: lgr %1,%0\n"
" ag %1,%4\n"
" csg %0,%1,%2\n"
" jl 0b"
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
: "=&d" (old), "=&d" (new), "=Q" (sem->count)
: "Q" (sem->count), "m" (tmp)
: "cc", "memory");
signed long old, new;
asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
" l %0,%2\n"
"0: lr %1,%0\n"
" ar %1,%4\n"
" cs %0,%1,%2\n"
" jl 0b"
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
" lg %0,%2\n"
"0: lgr %1,%0\n"
" agr %1,%4\n"
" csg %0,%1,%2\n"
" jl 0b"
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
: "=&d" (old), "=&d" (new), "=Q" (sem->count)
: "Q" (sem->count), "d" (delta)
: "cc", "memory");
signed long old, new;
asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
" l %0,%2\n"
"0: lr %1,%0\n"
" ar %1,%4\n"
" cs %0,%1,%2\n"
" jl 0b"
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
" lg %0,%2\n"
"0: lgr %1,%0\n"
" agr %1,%4\n"
" csg %0,%1,%2\n"
" jl 0b"
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
: "=&d" (old), "=&d" (new), "=Q" (sem->count)
: "Q" (sem->count), "d" (delta)
: "cc", "memory");
return new;
}
-#endif /* __KERNEL__ */
#endif /* _S390_RWSEM_H */
#include <asm/lowcore.h>
#include <asm/types.h>
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
#define IPL_DEVICE (*(unsigned long *) (0x10404))
#define INITRD_START (*(unsigned long *) (0x1040C))
#define INITRD_SIZE (*(unsigned long *) (0x10414))
#define OLDMEM_BASE (*(unsigned long *) (0x1041C))
#define OLDMEM_SIZE (*(unsigned long *) (0x10424))
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
#define IPL_DEVICE (*(unsigned long *) (0x10400))
#define INITRD_START (*(unsigned long *) (0x10408))
#define INITRD_SIZE (*(unsigned long *) (0x10410))
#define OLDMEM_BASE (*(unsigned long *) (0x10418))
#define OLDMEM_SIZE (*(unsigned long *) (0x10420))
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
#define COMMAND_LINE ((char *) (0x10480))
#define CHUNK_READ_WRITE 0
#define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
#define MACHINE_HAS_IEEE (S390_lowcore.machine_flags & MACHINE_FLAG_IEEE)
#define MACHINE_HAS_CSP (S390_lowcore.machine_flags & MACHINE_FLAG_CSP)
#define MACHINE_HAS_IDTE (0)
#define MACHINE_HAS_PFMF (0)
#define MACHINE_HAS_SPP (0)
#define MACHINE_HAS_TOPOLOGY (0)
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
#define MACHINE_HAS_IEEE (1)
#define MACHINE_HAS_CSP (1)
#define MACHINE_HAS_IDTE (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE)
#define MACHINE_HAS_PFMF (S390_lowcore.machine_flags & MACHINE_FLAG_PFMF)
#define MACHINE_HAS_SPP (S390_lowcore.machine_flags & MACHINE_FLAG_SPP)
#define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY)
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
#define ZFCPDUMP_HSA_SIZE (32UL<<20)
#define ZFCPDUMP_HSA_SIZE_MAX (64UL<<20)
#else /* __ASSEMBLY__ */
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
#define IPL_DEVICE 0x10404
#define INITRD_START 0x1040C
#define INITRD_SIZE 0x10414
#define OLDMEM_BASE 0x1041C
#define OLDMEM_SIZE 0x10424
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
#define IPL_DEVICE 0x10400
#define INITRD_START 0x10408
#define INITRD_SIZE 0x10410
#define OLDMEM_BASE 0x10418
#define OLDMEM_SIZE 0x10420
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
#define COMMAND_LINE 0x10480
#endif /* __ASSEMBLY__ */
wl = __wl; \
})
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
#define udiv_qrnnd(q, r, n1, n0, d) \
do { unsigned long __n; \
unsigned int __r, __d; \
#ifndef _S390_STRING_H_
#define _S390_STRING_H_
-#ifdef __KERNEL__
-
#ifndef _LINUX_TYPES_H
#include <linux/types.h>
#endif
size_t strnlen(const char * s, size_t n);
#endif /* !IN_ARCH_STRING_C */
-#endif /* __KERNEL__ */
-
#endif /* __S390_STRING_H_ */
#ifndef _ASM_THREAD_INFO_H
#define _ASM_THREAD_INFO_H
-#ifdef __KERNEL__
-
/*
* Size of kernel stack for each process
*/
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
#define THREAD_ORDER 1
#define ASYNC_ORDER 1
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
#ifndef __SMALL_STACK
#define THREAD_ORDER 2
#define ASYNC_ORDER 2
#define THREAD_ORDER 1
#define ASYNC_ORDER 1
#endif
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER)
#define ASYNC_SIZE (PAGE_SIZE << ASYNC_ORDER)
#define is_32bit_task() (1)
#endif
-#endif /* __KERNEL__ */
-
#define PREEMPT_ACTIVE 0x4000000
#endif /* _ASM_THREAD_INFO_H */
#ifndef _ASM_S390_TIMER_H
#define _ASM_S390_TIMER_H
-#ifdef __KERNEL__
-
#include <linux/timer.h>
#define VTIMER_MAX_SLICE (0x7ffffffffffff000LL)
extern void vtime_stop_cpu(void);
extern void vtime_start_leave(void);
-#endif /* __KERNEL__ */
-
#endif /* _ASM_S390_TIMER_H */
static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
unsigned long address)
{
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
if (tlb->mm->context.asce_limit <= (1UL << 31))
return;
if (!tlb->fullmm)
static inline void pud_free_tlb(struct mmu_gather *tlb, pud_t *pud,
unsigned long address)
{
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
if (tlb->mm->context.asce_limit <= (1UL << 42))
return;
if (!tlb->fullmm)
register unsigned long reg4 asm("4");
long dummy;
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
if (!MACHINE_HAS_CSP) {
smp_ptlb_all();
return;
}
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
dummy = 0;
reg2 = reg3 = 0;
#ifndef __ASSEMBLY__
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
typedef union {
unsigned long long pair;
struct {
} subreg;
} register_pair;
-#endif /* ! __s390x__ */
+#endif /* ! CONFIG_64BIT */
#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* _S390_TYPES_H */
#define segment_eq(a,b) ((a).ar4 == (b).ar4)
-#define __access_ok(addr, size) \
-({ \
- __chk_user_ptr(addr); \
- 1; \
+static inline int __range_ok(unsigned long addr, unsigned long size)
+{
+ return 1;
+}
+
+#define __access_ok(addr, size) \
+({ \
+ __chk_user_ptr(addr); \
+ __range_ok((unsigned long)(addr), (size)); \
})
#define access_ok(type, addr, size) __access_ok(addr, size)
}
extern int memcpy_real(void *, void *, size_t);
-extern void copy_to_absolute_zero(void *dest, void *src, size_t count);
+extern void memcpy_absolute(void *, void *, size_t);
extern int copy_to_user_real(void __user *dest, void *src, size_t count);
extern int copy_from_user_real(void *dest, void __user *src, size_t count);
#ifndef __S390_VDSO_H__
#define __S390_VDSO_H__
-#ifdef __KERNEL__
-
/* Default link addresses for the vDSOs */
#define VDSO32_LBASE 0
#define VDSO64_LBASE 0
#endif
#endif /* __ASSEMBLY__ */
-
-#endif /* __KERNEL__ */
-
#endif /* __S390_VDSO_H__ */
stctg %c0,%c15,0(%r4)
larl %r4,.Lfpctl # Floating point control register
stfpc 0(%r4)
+ larl %r4,.Lcontinue_psw # Save PSW flags
+ epsw %r2,%r3
+ stm %r2,%r3,0(%r4)
larl %r4,.Lrestart_psw # Setup restart PSW at absolute 0
lghi %r3,0
lg %r4,0(%r4) # Save PSW
lctlg %c0,%c15,0(%r4)
larl %r4,.Lfpctl # Restore floating point ctl register
lfpc 0(%r4)
+ larl %r4,.Lcontinue_psw # Restore PSW flags
+ lpswe 0(%r4)
+.Lcontinue:
br %r14
.align 16
.Lrestart_psw:
.long 0x00080000,0x80000000 + .Lrestart_part2
+ .section .data..nosave,"aw",@progbits
+.align 8
+.Lcontinue_psw:
+ .quad 0,.Lcontinue
+ .previous
+
.section .bss
.align 8
.Lctlregs:
#include "compat_ptrace.h"
#include "entry.h"
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
typedef struct
{
__u8 callee_used_stack[__SIGNAL_FRAMESIZE32];
goto badframe;
if (__copy_from_user(&set.sig, &frame->sc.oldmask, _SIGMASK_COPY_SIZE32))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigregs32(regs, &frame->sregs))
goto badframe;
goto badframe;
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigregs32(regs, &frame->uc.uc_mcontext))
goto badframe;
* OK, we're invoking a handler
*/
-int handle_signal32(unsigned long sig, struct k_sigaction *ka,
+void handle_signal32(unsigned long sig, struct k_sigaction *ka,
siginfo_t *info, sigset_t *oldset, struct pt_regs *regs)
{
int ret;
else
ret = setup_frame32(sig, ka, oldset, regs);
if (ret)
- return ret;
- block_sigmask(ka, sig);
- return 0;
+ return;
+ signal_delivered(sig, info, ka, regs,
+ test_thread_flag(TIF_SINGLE_STEP));
}
S390_lowcore.machine_flags |= MACHINE_FLAG_VM;
}
-static __init void early_pgm_check_handler(void)
+static void early_pgm_check_handler(void)
{
unsigned long addr;
const struct exception_table_entry *fixup;
void syscall_trace(struct pt_regs *regs, int entryexit);
void kernel_stack_overflow(struct pt_regs * regs);
void do_signal(struct pt_regs *regs);
-int handle_signal32(unsigned long sig, struct k_sigaction *ka,
+void handle_signal32(unsigned long sig, struct k_sigaction *ka,
siginfo_t *info, sigset_t *oldset, struct pt_regs *regs);
void do_notify_resume(struct pt_regs *regs);
basr %r13,0
0:
mvc 0(8,%r0),.Lrestart_psw-0b(%r13) # Setup restart PSW
- mvc 464(16,%r0),.Lpgm_psw-0b(%r13) # Setup pgm check PSW
- lhi %r1,1 # Start new kernel
- diag %r1,%r1,0x308 # with diag 308
-
-.Lno_diag308: # No diag 308
sam31 # Switch to 31 bit addr mode
sr %r1,%r1 # Erase register r1
sr %r2,%r2 # Erase register r2
.align 8
.Lrestart_psw:
.long 0x00080000,0x80000000 + startup
-.Lpgm_psw:
- .quad 0x0000000180000000,0x0000000000000000 + .Lno_diag308
#else
.align 2
.Lep_startup_kdump:
static void dump_reipl_run(struct shutdown_trigger *trigger)
{
- u32 csum;
-
- csum = csum_partial(reipl_block_actual, reipl_block_actual->hdr.len, 0);
- copy_to_absolute_zero(&S390_lowcore.ipib_checksum, &csum, sizeof(csum));
- copy_to_absolute_zero(&S390_lowcore.ipib, &reipl_block_actual,
- sizeof(reipl_block_actual));
+ struct {
+ void *addr;
+ __u32 csum;
+ } __packed ipib;
+
+ ipib.csum = csum_partial(reipl_block_actual,
+ reipl_block_actual->hdr.len, 0);
+ ipib.addr = reipl_block_actual;
+ memcpy_absolute(&S390_lowcore.ipib, &ipib, sizeof(ipib));
dump_run(trigger);
}
static void __do_restart(void *ignore)
{
+ __arch_local_irq_stosm(0x04); /* enable DAT */
smp_send_stop();
#ifdef CONFIG_CRASH_DUMP
crash_kexec(NULL);
{.name = "VRT", .desc = "[EXT] Virtio" },
{.name = "SCP", .desc = "[EXT] Service Call" },
{.name = "IUC", .desc = "[EXT] IUCV" },
- {.name = "CPM", .desc = "[EXT] CPU Measurement" },
+ {.name = "CMS", .desc = "[EXT] CPU-Measurement: Sampling" },
+ {.name = "CMC", .desc = "[EXT] CPU-Measurement: Counter" },
{.name = "CIO", .desc = "[I/O] Common I/O Layer Interrupt" },
{.name = "QAI", .desc = "[I/O] QDIO Adapter Interrupt" },
{.name = "DAS", .desc = "[I/O] DASD" },
#include <asm/ipl.h>
#include <asm/diag.h>
#include <asm/asm-offsets.h>
+#include <asm/os_info.h>
typedef void (*relocate_kernel_t)(kimage_entry_t *, unsigned long);
#ifdef CONFIG_CRASH_DUMP
int (*start_kdump)(int) = (void *)((struct kimage *) image)->start;
- __load_psw_mask(PSW_MASK_BASE | PSW_DEFAULT_KEY | PSW_MASK_EA | PSW_MASK_BA);
setup_regs();
+ __load_psw_mask(PSW_MASK_BASE | PSW_DEFAULT_KEY | PSW_MASK_EA | PSW_MASK_BA);
start_kdump(1);
#endif
}
size % KEXEC_CRASH_MEM_ALIGN);
if (enable)
vmem_add_mapping(crashk_res.start, size);
- else
+ else {
vmem_remove_mapping(crashk_res.start, size);
+ if (size)
+ os_info_crashkernel_add(crashk_res.start, size);
+ else
+ os_info_crashkernel_add(0, 0);
+ }
}
/*
{
struct kimage *image = data;
+ __arch_local_irq_stosm(0x04); /* enable DAT */
pfault_fini();
tracing_off();
debug_locks_off();
os_info.version_minor = OS_INFO_VERSION_MINOR;
os_info.magic = OS_INFO_MAGIC;
os_info.csum = os_info_csum(&os_info);
- copy_to_absolute_zero(&S390_lowcore.os_info, &ptr, sizeof(ptr));
+ memcpy_absolute(&S390_lowcore.os_info, &ptr, sizeof(ptr));
}
#ifdef CONFIG_CRASH_DUMP
goto fail_free;
os_info_old_alloc(OS_INFO_VMCOREINFO, 1);
os_info_old_alloc(OS_INFO_REIPL_BLOCK, 1);
- os_info_old_alloc(OS_INFO_INIT_FN, PAGE_SIZE);
pr_info("crashkernel: addr=0x%lx size=%lu\n",
(unsigned long) os_info_old->crashkernel_addr,
(unsigned long) os_info_old->crashkernel_size);
if (!(alert & CPU_MF_INT_CF_MASK))
return;
- kstat_cpu(smp_processor_id()).irqs[EXTINT_CPM]++;
+ kstat_cpu(smp_processor_id()).irqs[EXTINT_CMC]++;
cpuhw = &__get_cpu_var(cpu_hw_events);
/* Measurement alerts are shared and might happen when the PMU
lc->restart_fn = (unsigned long) do_restart;
lc->restart_data = 0;
lc->restart_source = -1UL;
- memcpy(&S390_lowcore.restart_stack, &lc->restart_stack,
- 4*sizeof(unsigned long));
- copy_to_absolute_zero(&S390_lowcore.restart_psw,
- &lc->restart_psw, sizeof(psw_t));
+
+ /* Setup absolute zero lowcore */
+ memcpy_absolute(&S390_lowcore.restart_stack, &lc->restart_stack,
+ 4 * sizeof(unsigned long));
+ memcpy_absolute(&S390_lowcore.restart_psw, &lc->restart_psw,
+ sizeof(lc->restart_psw));
set_prefix((u32)(unsigned long) lc);
lowcore_ptr[0] = lc;
#ifdef CONFIG_KEXEC
unsigned long ptr = paddr_vmcoreinfo_note();
- copy_to_absolute_zero(&S390_lowcore.vmcore_info, &ptr, sizeof(ptr));
+ memcpy_absolute(&S390_lowcore.vmcore_info, &ptr, sizeof(ptr));
#endif
}
#include <asm/switch_to.h>
#include "entry.h"
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
-
typedef struct
{
__u8 callee_used_stack[__SIGNAL_FRAMESIZE];
goto badframe;
if (__copy_from_user(&set.sig, &frame->sc.oldmask, _SIGMASK_COPY_SIZE))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigregs(regs, &frame->sregs))
goto badframe;
goto badframe;
if (__copy_from_user(&set.sig, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigregs(regs, &frame->uc.uc_mcontext))
goto badframe;
return -EFAULT;
}
-static int handle_signal(unsigned long sig, struct k_sigaction *ka,
+static void handle_signal(unsigned long sig, struct k_sigaction *ka,
siginfo_t *info, sigset_t *oldset,
struct pt_regs *regs)
{
else
ret = setup_frame(sig, ka, oldset, regs);
if (ret)
- return ret;
- block_sigmask(ka, sig);
- return 0;
+ return;
+ signal_delivered(sig, info, ka, regs,
+ test_thread_flag(TIF_SINGLE_STEP));
}
/*
siginfo_t info;
int signr;
struct k_sigaction ka;
- sigset_t *oldset;
-
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
+ sigset_t *oldset = sigmask_to_save();
/*
* Get signal to deliver. When running under ptrace, at this point
/* No longer in a system call */
clear_thread_flag(TIF_SYSCALL);
- if ((is_compat_task() ?
- handle_signal32(signr, &ka, &info, oldset, regs) :
- handle_signal(signr, &ka, &info, oldset, regs)) == 0) {
- /*
- * A signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag.
- */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
-
- /*
- * Let tracing know that we've done the handler setup.
- */
- tracehook_signal_handler(signr, &info, &ka, regs,
- test_thread_flag(TIF_SINGLE_STEP));
- }
+ if (is_compat_task())
+ handle_signal32(signr, &ka, &info, oldset, regs);
+ else
+ handle_signal(signr, &ka, &info, oldset, regs);
return;
}
/*
* If there's no signal to deliver, we just put the saved sigmask back.
*/
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
+ restore_saved_sigmask();
}
void do_notify_resume(struct pt_regs *regs)
{
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
static void pcpu_delegate(struct pcpu *pcpu, void (*func)(void *),
void *data, unsigned long stack)
{
- struct _lowcore *lc = pcpu->lowcore;
- unsigned short this_cpu;
+ struct _lowcore *lc = lowcore_ptr[pcpu - pcpu_devices];
+ struct {
+ unsigned long stack;
+ void *func;
+ void *data;
+ unsigned long source;
+ } restart = { stack, func, data, stap() };
__load_psw_mask(psw_kernel_bits);
- this_cpu = stap();
- if (pcpu->address == this_cpu)
+ if (pcpu->address == restart.source)
func(data); /* should not return */
/* Stop target cpu (if func returns this stops the current cpu). */
pcpu_sigp_retry(pcpu, sigp_stop, 0);
/* Restart func on the target cpu and stop the current cpu. */
- lc->restart_stack = stack;
- lc->restart_fn = (unsigned long) func;
- lc->restart_data = (unsigned long) data;
- lc->restart_source = (unsigned long) this_cpu;
+ memcpy_absolute(&lc->restart_stack, &restart, sizeof(restart));
asm volatile(
"0: sigp 0,%0,6 # sigp restart to target cpu\n"
" brc 2,0b # busy, try again\n"
"1: sigp 0,%1,5 # sigp stop to current cpu\n"
" brc 2,1b # busy, try again\n"
- : : "d" (pcpu->address), "d" (this_cpu) : "0", "1", "cc");
+ : : "d" (pcpu->address), "d" (restart.source) : "0", "1", "cc");
for (;;) ;
}
#endif /* CONFIG_HOTPLUG_CPU */
-static void smp_call_os_info_init_fn(void)
-{
- int (*init_fn)(void);
- unsigned long size;
-
- init_fn = os_info_old_entry(OS_INFO_INIT_FN, &size);
- if (!init_fn)
- return;
- init_fn();
-}
-
void __init smp_prepare_cpus(unsigned int max_cpus)
{
/* request the 0x1201 emergency signal external interrupt */
/* request the 0x1202 external call external interrupt */
if (register_external_interrupt(0x1202, do_ext_call_interrupt) != 0)
panic("Couldn't request external interrupt 0x1202");
- smp_call_os_info_init_fn();
smp_detect_cpus();
}
.attrs = cpu_common_attrs,
};
-static ssize_t show_capability(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- unsigned int capability;
- int rc;
-
- rc = get_cpu_capability(&capability);
- if (rc)
- return rc;
- return sprintf(buf, "%u\n", capability);
-}
-static DEVICE_ATTR(capability, 0444, show_capability, NULL);
-
static ssize_t show_idle_count(struct device *dev,
struct device_attribute *attr, char *buf)
{
static DEVICE_ATTR(idle_time_us, 0444, show_idle_time, NULL);
static struct attribute *cpu_online_attrs[] = {
- &dev_attr_capability.attr,
&dev_attr_idle_count.attr,
&dev_attr_idle_time_us.attr,
NULL,
}
subsys_initcall(create_proc_service_level);
-/*
- * Bogomips calculation based on cpu capability.
- */
-int get_cpu_capability(unsigned int *capability)
-{
- struct sysinfo_1_2_2 *info;
- int rc;
-
- info = (void *) get_zeroed_page(GFP_KERNEL);
- if (!info)
- return -ENOMEM;
- rc = stsi(info, 1, 2, 2);
- if (rc == -ENOSYS)
- goto out;
- rc = 0;
- *capability = info->capability;
-out:
- free_page((unsigned long) info);
- return rc;
-}
-
/*
* CPU capability might have changed. Therefore recalculate loops_per_jiffy.
*/
#include <asm/futex.h>
#include "uaccess.h"
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
#define AHI "ahi"
#define ALR "alr"
#define CLR "clr"
#include <asm/futex.h>
#include "uaccess.h"
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
#define AHI "ahi"
#define ALR "alr"
#define CLR "clr"
}
/*
- * Copy memory to absolute zero
+ * Copy memory in absolute mode (kernel to kernel)
*/
-void copy_to_absolute_zero(void *dest, void *src, size_t count)
+void memcpy_absolute(void *dest, void *src, size_t count)
{
- unsigned long cr0;
+ unsigned long cr0, flags, prefix;
- BUG_ON((unsigned long) dest + count >= sizeof(struct _lowcore));
- preempt_disable();
+ flags = arch_local_irq_save();
__ctl_store(cr0, 0, 0);
__ctl_clear_bit(0, 28); /* disable lowcore protection */
- memcpy_real(dest + store_prefix(), src, count);
+ prefix = store_prefix();
+ if (prefix) {
+ local_mcck_disable();
+ set_prefix(0);
+ memcpy(dest, src, count);
+ set_prefix(prefix);
+ local_mcck_enable();
+ } else {
+ memcpy(dest, src, count);
+ }
__ctl_load(cr0, 0, 0);
- preempt_enable();
+ arch_local_irq_restore(flags);
}
/*
return 0;
}
-/*
- * Return swapped prefix or zero page address
- */
-static unsigned long get_swapped(unsigned long addr)
-{
- unsigned long prefix = store_prefix();
-
- if (addr < sizeof(struct _lowcore))
- return addr + prefix;
- if (addr >= prefix && addr < prefix + sizeof(struct _lowcore))
- return addr - prefix;
- return addr;
-}
-
/*
* Convert a physical pointer for /dev/mem access
*
size = PAGE_SIZE - (addr & ~PAGE_MASK);
bounce = (void *) __get_free_page(GFP_ATOMIC);
if (bounce)
- memcpy_real(bounce, (void *) get_swapped(addr), size);
+ memcpy_absolute(bounce, (void *) addr, size);
}
preempt_enable();
put_online_cpus();
pte = mk_pte_phys(address, __pgprot(ro ? _PAGE_RO : 0));
pm_dir = pmd_offset(pu_dir, address);
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
if (MACHINE_HAS_HPAGE && !(address & ~HPAGE_MASK) &&
(address + HPAGE_SIZE <= start + size) &&
(address >= HPAGE_SIZE)) {
if (!(param32 & CPU_MF_INT_SF_MASK))
return;
- kstat_cpu(smp_processor_id()).irqs[EXTINT_CPM]++;
+ kstat_cpu(smp_processor_id()).irqs[EXTINT_CMS]++;
atomic_xchg(&cb->ext_params, atomic_read(&cb->ext_params) | param32);
if (hws_wq)
#include <asm/syscalls.h>
#include <asm/ucontext.h>
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
struct rt_sigframe {
u32 rs_ass[4]; /* argument save space */
u32 rs_code[2]; /* signal trampoline */
if (__copy_from_user(&set, &frame->rs_uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
sig = restore_sigcontext(regs, &frame->rs_uc.uc_mcontext);
return -EFAULT;
}
-static int handle_signal(unsigned long sig, siginfo_t *info,
- struct k_sigaction *ka, sigset_t *oldset, struct pt_regs *regs)
+static void handle_signal(unsigned long sig, siginfo_t *info,
+ struct k_sigaction *ka, struct pt_regs *regs)
{
- int ret;
-
if (regs->is_syscall) {
switch (regs->regs[4]) {
case ERESTART_RESTARTBLOCK:
/*
* Set up the stack frame
*/
- ret = setup_rt_frame(ka, regs, sig, oldset, info);
-
- if (ret == 0)
- block_sigmask(ka, sig);
+ if (setup_rt_frame(ka, regs, sig, sigmask_to_save(), info) < 0)
+ return;
- return ret;
+ signal_delivered(sig, info, ka, regs, 0);
}
static void do_signal(struct pt_regs *regs)
{
struct k_sigaction ka;
- sigset_t *oldset;
siginfo_t info;
int signr;
if (!user_mode(regs))
return;
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
/* Actually deliver the signal. */
- if (handle_signal(signr, &info, &ka, oldset, regs) == 0) {
- /*
- * A signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag.
- */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- }
-
+ handle_signal(signr, &info, &ka, regs);
return;
}
* If there's no signal to deliver, we just put the saved sigmask
* back
*/
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
+ restore_saved_sigmask();
}
/*
if (thread_info_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
typedef unsigned short __kernel_mode_t;
#define __kernel_mode_t __kernel_mode_t
-typedef unsigned short __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
typedef unsigned short __kernel_ipc_pid_t;
#define __kernel_ipc_pid_t __kernel_ipc_pid_t
typedef unsigned short __kernel_uid_t;
typedef unsigned short __kernel_mode_t;
#define __kernel_mode_t __kernel_mode_t
-typedef unsigned short __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
typedef unsigned short __kernel_ipc_pid_t;
#define __kernel_ipc_pid_t __kernel_ipc_pid_t
typedef unsigned short __kernel_uid_t;
{
struct thread_info *ti = current_thread_info();
ti->status |= TS_RESTORE_SIGMASK;
- set_bit(TIF_SIGPENDING, (unsigned long *)&ti->flags);
+ WARN_ON(!test_bit(TIF_SIGPENDING, (unsigned long *)&ti->flags));
}
#define TI_FLAG_FAULT_CODE_SHIFT 24
struct thread_info *ti = current_thread_info();
return ti->flags >> TI_FLAG_FAULT_CODE_SHIFT;
}
+
+static inline void clear_restore_sigmask(void)
+{
+ current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+}
+static inline bool test_restore_sigmask(void)
+{
+ return current_thread_info()->status & TS_RESTORE_SIGMASK;
+}
+static inline bool test_and_clear_restore_sigmask(void)
+{
+ struct thread_info *ti = current_thread_info();
+ if (!(ti->status & TS_RESTORE_SIGMASK))
+ return false;
+ ti->status &= ~TS_RESTORE_SIGMASK;
+ return true;
+}
#endif /* !__ASSEMBLY__ */
#endif /* __KERNEL__ */
#include <asm/syscalls.h>
#include <asm/fpu.h>
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
struct fdpic_func_descriptor {
unsigned long text;
unsigned long GOT;
sizeof(frame->extramask))))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->sc, &r0))
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &r0))
/*
* OK, we're invoking a handler
*/
-static int
+static void
handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
- sigset_t *oldset, struct pt_regs *regs, unsigned int save_r0)
+ struct pt_regs *regs, unsigned int save_r0)
{
+ sigset_t *oldset = sigmask_to_save();
int ret;
/* Set up the stack frame */
else
ret = setup_frame(sig, ka, oldset, regs);
- if (ret == 0)
- block_sigmask(ka, sig);
-
- return ret;
+ if (ret)
+ return;
+ signal_delivered(sig, info, ka, regs,
+ test_thread_flag(TIF_SINGLESTEP));
}
/*
siginfo_t info;
int signr;
struct k_sigaction ka;
- sigset_t *oldset;
/*
* We want the common case to go fast, which
if (!user_mode(regs))
return;
- if (current_thread_info()->status & TS_RESTORE_SIGMASK)
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
handle_syscall_restart(save_r0, regs, &ka.sa);
/* Whee! Actually deliver the signal. */
- if (handle_signal(signr, &ka, &info, oldset,
- regs, save_r0) == 0) {
- /*
- * A signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TS_RESTORE_SIGMASK flag
- */
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
-
- tracehook_signal_handler(signr, &info, &ka, regs,
- test_thread_flag(TIF_SINGLESTEP));
- }
-
+ handle_signal(signr, &ka, &info, regs, save_r0);
return;
}
* If there's no signal to deliver, we just put the saved sigmask
* back.
*/
- if (current_thread_info()->status & TS_RESTORE_SIGMASK) {
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
+ restore_saved_sigmask();
}
asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned int save_r0,
if (thread_info_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
#define DEBUG_SIG 0
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
-static int
+static void
handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
- sigset_t *oldset, struct pt_regs * regs);
+ struct pt_regs * regs);
static inline void
handle_syscall_restart(struct pt_regs *regs, struct sigaction *sa)
siginfo_t info;
int signr;
struct k_sigaction ka;
- sigset_t *oldset;
/*
* We want the common case to go fast, which
if (!user_mode(regs))
return;
- if (current_thread_info()->status & TS_RESTORE_SIGMASK)
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
signr = get_signal_to_deliver(&info, &ka, regs, 0);
if (signr > 0) {
handle_syscall_restart(regs, &ka.sa);
/* Whee! Actually deliver the signal. */
- if (handle_signal(signr, &info, &ka, oldset, regs) == 0) {
- /*
- * If a signal was successfully delivered, the
- * saved sigmask is in its frame, and we can
- * clear the TS_RESTORE_SIGMASK flag.
- */
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
-
- tracehook_signal_handler(signr, &info, &ka, regs,
- test_thread_flag(TIF_SINGLESTEP));
- return;
- }
+ handle_signal(signr, &info, &ka, regs);
+ return;
}
/* Did we come from a system call? */
}
/* No signal to deliver -- put the saved sigmask back */
- if (current_thread_info()->status & TS_RESTORE_SIGMASK) {
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
-
- return;
+ restore_saved_sigmask();
}
/*
sizeof(frame->extramask))))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->sc, &ret))
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &ret))
/*
* OK, we're invoking a handler
*/
-static int
+static void
handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
- sigset_t *oldset, struct pt_regs * regs)
+ struct pt_regs * regs)
{
+ sigset_t *oldset = sigmask_to_save();
int ret;
/* Set up the stack frame */
else
ret = setup_frame(sig, ka, oldset, regs);
- if (ret == 0)
- block_sigmask(ka, sig);
+ if (ret)
+ return;
- return ret;
+ signal_delivered(sig, info, ka, regs,
+ test_thread_flag(TIF_SINGLESTEP));
}
asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags)
if (thread_info_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
int __cpu_disable(void)
{
unsigned int cpu = smp_processor_id();
- struct task_struct *p;
int ret;
ret = mp_ops->cpu_disable(cpu);
flush_cache_all();
local_flush_tlb_all();
- read_lock(&tasklist_lock);
- for_each_process(p)
- if (p->mm)
- cpumask_clear_cpu(cpu, mm_cpumask(p->mm));
- read_unlock(&tasklist_lock);
+ clear_tasks_mm_cpumask(cpu);
return 0;
}
def_bool !64BIT
select GENERIC_ATOMIC64
select CLZ_TAB
- select ARCH_USES_GETTIMEOFFSET
config SPARC64
def_bool 64BIT
#define ASI_M_UNA01 0x01 /* Same here... */
#define ASI_M_MXCC 0x02 /* Access to TI VIKING MXCC registers */
#define ASI_M_FLUSH_PROBE 0x03 /* Reference MMU Flush/Probe; rw, ss */
-#ifndef CONFIG_SPARC_LEON
#define ASI_M_MMUREGS 0x04 /* MMU Registers; rw, ss */
-#else
-#define ASI_M_MMUREGS 0x19
-#endif /* CONFIG_SPARC_LEON */
#define ASI_M_TLBDIAG 0x05 /* MMU TLB only Diagnostics */
#define ASI_M_DIAGS 0x06 /* Reference MMU Diagnostics */
#define ASI_M_IODIAG 0x07 /* MMU I/O TLB only Diagnostics */
/* All traps low-level code here must end with this macro. */
#define RESTORE_ALL b ret_trap_entry; clr %l6;
+/* Support for run-time patching of single instructions.
+ * This is used to handle the differences in the ASI for
+ * MMUREGS for LEON and SUN.
+ *
+ * Sample:
+ * LEON_PI(lda [%g0] ASI_LEON_MMUREGS, %o0
+ * SUN_PI_(lda [%g0] ASI_M_MMUREGS, %o0
+ * PI == Patch Instruction
+ *
+ * For LEON we will use the first variant,
+ * and for all other we will use the SUN variant.
+ * The order is important.
+ */
+#define LEON_PI(...) \
+662: __VA_ARGS__
+
+#define SUN_PI_(...) \
+ .section .leon_1insn_patch, "ax"; \
+ .word 662b; \
+ __VA_ARGS__; \
+ .previous
+
#endif /* !(_SPARC_ASMMACRO_H) */
#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
-extern struct dma_map_ops *dma_ops, pci32_dma_ops;
+extern struct dma_map_ops *dma_ops;
+extern struct dma_map_ops *leon_dma_ops;
+extern struct dma_map_ops pci32_dma_ops;
+
extern struct bus_type pci_bus_type;
static inline struct dma_map_ops *get_dma_ops(struct device *dev)
{
#if defined(CONFIG_SPARC32) && defined(CONFIG_PCI)
- if (dev->bus == &pci_bus_type)
+ if (sparc_cpu_model == sparc_leon)
+ return leon_dma_ops;
+ else if (dev->bus == &pci_bus_type)
return &pci32_dma_ops;
#endif
return dma_ops;
#ifndef LEON_H_INCLUDE
#define LEON_H_INCLUDE
-#ifdef CONFIG_SPARC_LEON
-
/* mmu register access, ASI_LEON_MMUREGS */
#define LEON_CNR_CTRL 0x000
#define LEON_CNR_CTXP 0x100
#ifndef __ASSEMBLY__
-/* do a virtual address read without cache */
-static inline unsigned long leon_readnobuffer_reg(unsigned long paddr)
-{
- unsigned long retval;
- __asm__ __volatile__("lda [%1] %2, %0\n\t" :
- "=r"(retval) : "r"(paddr), "i"(ASI_LEON_NOCACHE));
- return retval;
-}
-
/* do a physical address bypass write, i.e. for 0x80000000 */
static inline void leon_store_reg(unsigned long paddr, unsigned long value)
{
return retval;
}
-static inline void leon_srmmu_disabletlb(void)
-{
- unsigned int retval;
- __asm__ __volatile__("lda [%%g0] %2, %0\n\t" : "=r"(retval) : "r"(0),
- "i"(ASI_LEON_MMUREGS));
- retval |= LEON_CNR_CTRL_TLBDIS;
- __asm__ __volatile__("sta %0, [%%g0] %2\n\t" : : "r"(retval), "r"(0),
- "i"(ASI_LEON_MMUREGS) : "memory");
-}
-
-static inline void leon_srmmu_enabletlb(void)
-{
- unsigned int retval;
- __asm__ __volatile__("lda [%%g0] %2, %0\n\t" : "=r"(retval) : "r"(0),
- "i"(ASI_LEON_MMUREGS));
- retval = retval & ~LEON_CNR_CTRL_TLBDIS;
- __asm__ __volatile__("sta %0, [%%g0] %2\n\t" : : "r"(retval), "r"(0),
- "i"(ASI_LEON_MMUREGS) : "memory");
-}
-
/* macro access for leon_load_reg() and leon_store_reg() */
#define LEON3_BYPASS_LOAD_PA(x) (leon_load_reg((unsigned long)(x)))
#define LEON3_BYPASS_STORE_PA(x, v) (leon_store_reg((unsigned long)(x), (unsigned long)(v)))
-#define LEON3_BYPASS_ANDIN_PA(x, v) LEON3_BYPASS_STORE_PA(x, LEON3_BYPASS_LOAD_PA(x) & v)
-#define LEON3_BYPASS_ORIN_PA(x, v) LEON3_BYPASS_STORE_PA(x, LEON3_BYPASS_LOAD_PA(x) | v)
#define LEON_BYPASS_LOAD_PA(x) leon_load_reg((unsigned long)(x))
#define LEON_BYPASS_STORE_PA(x, v) leon_store_reg((unsigned long)(x), (unsigned long)(v))
-#define LEON_REGLOAD_PA(x) leon_load_reg((unsigned long)(x)+LEON_PREGS)
-#define LEON_REGSTORE_PA(x, v) leon_store_reg((unsigned long)(x)+LEON_PREGS, (unsigned long)(v))
-#define LEON_REGSTORE_OR_PA(x, v) LEON_REGSTORE_PA(x, LEON_REGLOAD_PA(x) | (unsigned long)(v))
-#define LEON_REGSTORE_AND_PA(x, v) LEON_REGSTORE_PA(x, LEON_REGLOAD_PA(x) & (unsigned long)(v))
-
-/* macro access for leon_readnobuffer_reg() */
-#define LEON_BYPASSCACHE_LOAD_VA(x) leon_readnobuffer_reg((unsigned long)(x))
extern void leon_init(void);
extern void leon_switch_mm(void);
extern void leon_init_IRQ(void);
-extern unsigned long last_valid_pfn;
-
static inline unsigned long sparc_leon3_get_dcachecfg(void)
{
unsigned int retval;
#error cannot determine LEON_PAGE_SIZE_LEON
#endif
-#define PAGE_MIN_SHIFT (12)
-#define PAGE_MIN_SIZE (1UL << PAGE_MIN_SHIFT)
-
#define LEON3_XCCR_SETS_MASK 0x07000000UL
#define LEON3_XCCR_SSIZE_MASK 0x00f00000UL
#ifndef __ASSEMBLY__
struct vm_area_struct;
-extern unsigned long srmmu_swprobe(unsigned long vaddr, unsigned long *paddr);
+extern unsigned long leon_swprobe(unsigned long vaddr, unsigned long *paddr);
extern void leon_flush_icache_all(void);
extern void leon_flush_dcache_all(void);
extern void leon_flush_cache_all(void);
unsigned long dccr; /* 0x0c - Data Cache Configuration Register */
};
-/* struct that hold LEON2 cache configuration register
- * & configuration register
- */
-struct leon2_cacheregs {
- unsigned long ccr, cfg;
-};
-
-#ifdef __KERNEL__
-
+#include <linux/irq.h>
#include <linux/interrupt.h>
struct device_node;
extern void leon_boot_cpus(void);
extern int leon_boot_one_cpu(int i, struct task_struct *);
void leon_init_smp(void);
-extern void cpu_idle(void);
-extern void init_IRQ(void);
-extern void cpu_panic(void);
-extern int __leon_processor_id(void);
void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu);
extern irqreturn_t leon_percpu_timer_interrupt(int irq, void *unused);
-extern unsigned int real_irq_entry[];
extern unsigned int smpleon_ipi[];
-extern unsigned int patchme_maybe_smp_msg[];
-extern unsigned int t_nmi[], linux_trap_ipi15_leon[];
-extern unsigned int linux_trap_ipi15_sun4m[];
+extern unsigned int linux_trap_ipi15_leon[];
extern int leon_ipi_irq;
#endif /* CONFIG_SMP */
-#endif /* __KERNEL__ */
-
#endif /* __ASSEMBLY__ */
/* macros used in leon_mm.c */
#define _pfn_valid(pfn) ((pfn < last_valid_pfn) && (pfn >= PFN(phys_base)))
#define _SRMMU_PTE_PMASK_LEON 0xffffffff
-#else /* defined(CONFIG_SPARC_LEON) */
-
-/* nop definitions for !LEON case */
-#define leon_init() do {} while (0)
-#define leon_switch_mm() do {} while (0)
-#define leon_init_IRQ() do {} while (0)
-#define init_leon() do {} while (0)
-#define leon_smp_done() do {} while (0)
-#define leon_boot_cpus() do {} while (0)
-#define leon_boot_one_cpu(i, t) 1
-#define leon_init_smp() do {} while (0)
-
-#endif /* !defined(CONFIG_SPARC_LEON) */
-
#endif
#define LEON3_GPTIMER_CONFIG_NRTIMERS(c) ((c)->config & 0x7)
#define LEON3_GPTIMER_CTRL_ISPENDING(r) (((r)&LEON3_GPTIMER_CTRL_PENDING) ? 1 : 0)
-#ifdef CONFIG_SPARC_LEON
-
#ifndef __ASSEMBLY__
struct leon3_irqctrl_regs_map {
#define amba_device(x) (((x) >> 12) & 0xfff)
-#endif /* !defined(CONFIG_SPARC_LEON) */
-
#endif
restore %g0, %g0, %g0;
#ifndef __ASSEMBLY__
+extern unsigned long last_valid_pfn;
/* This makes sense. Honest it does - Anton */
/* XXX Yes but it's ugly as sin. FIXME. -KMW */
#define __nocache_fix(VADDR) __va(__nocache_pa(VADDR))
/* Accessing the MMU control register. */
-static inline unsigned int srmmu_get_mmureg(void)
-{
- unsigned int retval;
- __asm__ __volatile__("lda [%%g0] %1, %0\n\t" :
- "=r" (retval) :
- "i" (ASI_M_MMUREGS));
- return retval;
-}
-
-static inline void srmmu_set_mmureg(unsigned long regval)
-{
- __asm__ __volatile__("sta %0, [%%g0] %1\n\t" : :
- "r" (regval), "i" (ASI_M_MMUREGS) : "memory");
-
-}
-
-static inline void srmmu_set_ctable_ptr(unsigned long paddr)
-{
- paddr = ((paddr >> 4) & SRMMU_CTX_PMASK);
- __asm__ __volatile__("sta %0, [%1] %2\n\t" : :
- "r" (paddr), "r" (SRMMU_CTXTBL_PTR),
- "i" (ASI_M_MMUREGS) :
- "memory");
-}
-
-static inline void srmmu_set_context(int context)
-{
- __asm__ __volatile__("sta %0, [%1] %2\n\t" : :
- "r" (context), "r" (SRMMU_CTX_REG),
- "i" (ASI_M_MMUREGS) : "memory");
-}
-
-static inline int srmmu_get_context(void)
-{
- register int retval;
- __asm__ __volatile__("lda [%1] %2, %0\n\t" :
- "=r" (retval) :
- "r" (SRMMU_CTX_REG),
- "i" (ASI_M_MMUREGS));
- return retval;
-}
-
-static inline unsigned int srmmu_get_fstatus(void)
-{
- unsigned int retval;
-
- __asm__ __volatile__("lda [%1] %2, %0\n\t" :
- "=r" (retval) :
- "r" (SRMMU_FAULT_STATUS), "i" (ASI_M_MMUREGS));
- return retval;
-}
-
-static inline unsigned int srmmu_get_faddr(void)
-{
- unsigned int retval;
-
- __asm__ __volatile__("lda [%1] %2, %0\n\t" :
- "=r" (retval) :
- "r" (SRMMU_FAULT_ADDR), "i" (ASI_M_MMUREGS));
- return retval;
-}
+unsigned int srmmu_get_mmureg(void);
+void srmmu_set_mmureg(unsigned long regval);
+void srmmu_set_ctable_ptr(unsigned long paddr);
+void srmmu_set_context(int context);
+int srmmu_get_context(void);
+unsigned int srmmu_get_fstatus(void);
+unsigned int srmmu_get_faddr(void);
/* This is guaranteed on all SRMMU's. */
static inline void srmmu_flush_whole_tlb(void)
}
-/* These flush types are not available on all chips... */
-#ifndef CONFIG_SPARC_LEON
-static inline unsigned long srmmu_hwprobe(unsigned long vaddr)
-{
- unsigned long retval;
-
- vaddr &= PAGE_MASK;
- __asm__ __volatile__("lda [%1] %2, %0\n\t" :
- "=r" (retval) :
- "r" (vaddr | 0x400), "i" (ASI_M_FLUSH_PROBE));
-
- return retval;
-}
-#else
-#define srmmu_hwprobe(addr) srmmu_swprobe(addr, 0)
-#endif
-
static inline int
srmmu_get_pte (unsigned long addr)
{
#if defined(__sparc__) && defined(__arch64__)
/* sparc 64 bit */
-typedef unsigned int __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
typedef unsigned short __kernel_old_uid_t;
typedef unsigned short __kernel_old_gid_t;
typedef unsigned short __kernel_mode_t;
#define __kernel_mode_t __kernel_mode_t
-typedef short __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
-
typedef long __kernel_daddr_t;
#define __kernel_daddr_t __kernel_daddr_t
#define PSR_VERS 0x0f000000 /* cpu-version field */
#define PSR_IMPL 0xf0000000 /* cpu-implementation field */
+#define PSR_VERS_SHIFT 24
+#define PSR_IMPL_SHIFT 28
+#define PSR_VERS_SHIFTED_MASK 0xf
+#define PSR_IMPL_SHIFTED_MASK 0xf
+
+#define PSR_IMPL_TI 0x4
+#define PSR_IMPL_LEON 0xf
+
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
/* sparc entry point */
extern char _start[];
+extern char __leon_1insn_patch[];
+extern char __leon_1insn_patch_end[];
+
#endif
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_DO_NOTIFY_RESUME_MASK (_TIF_NOTIFY_RESUME | \
- _TIF_SIGPENDING | \
- _TIF_RESTORE_SIGMASK)
+ _TIF_SIGPENDING)
#endif /* __KERNEL__ */
{
struct thread_info *ti = current_thread_info();
ti->status |= TS_RESTORE_SIGMASK;
- set_bit(TIF_SIGPENDING, &ti->flags);
+ WARN_ON(!test_bit(TIF_SIGPENDING, &ti->flags));
+}
+static inline void clear_restore_sigmask(void)
+{
+ current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+}
+static inline bool test_restore_sigmask(void)
+{
+ return current_thread_info()->status & TS_RESTORE_SIGMASK;
+}
+static inline bool test_and_clear_restore_sigmask(void)
+{
+ struct thread_info *ti = current_thread_info();
+ if (!(ti->status & TS_RESTORE_SIGMASK))
+ return false;
+ ti->status &= ~TS_RESTORE_SIGMASK;
+ return true;
}
#endif /* !__ASSEMBLY__ */
obj-y += of_device_$(BITS).o
obj-$(CONFIG_SPARC64) += prom_irqtrans.o
-obj-$(CONFIG_SPARC_LEON)+= leon_kernel.o
-obj-$(CONFIG_SPARC_LEON)+= leon_pmc.o
+obj-$(CONFIG_SPARC32) += leon_kernel.o
+obj-$(CONFIG_SPARC32) += leon_pmc.o
obj-$(CONFIG_SPARC64) += reboot.o
obj-$(CONFIG_SPARC64) += sysfs.o
FPU(-1, NULL)
}
},{
- 4,
+ PSR_IMPL_TI,
.cpu_info = {
CPU(0, "Texas Instruments, Inc. - SuperSparc-(II)"),
/* SparcClassic -- borned STP1010TAB-50*/
FPU(-1, NULL)
}
},{
- 0xF, /* Aeroflex Gaisler */
+ PSR_IMPL_LEON, /* Aeroflex Gaisler */
.cpu_info = {
CPU(3, "LEON"),
CPU(-1, NULL)
int psr_impl, psr_vers, fpu_vers;
int psr;
- psr_impl = ((get_psr() >> 28) & 0xf);
- psr_vers = ((get_psr() >> 24) & 0xf);
+ psr_impl = ((get_psr() >> PSR_IMPL_SHIFT) & PSR_IMPL_SHIFTED_MASK);
+ psr_vers = ((get_psr() >> PSR_VERS_SHIFT) & PSR_VERS_SHIFTED_MASK);
psr = get_psr();
put_psr(psr | PSR_EF);
-#ifdef CONFIG_SPARC_LEON
- fpu_vers = get_psr() & PSR_EF ? ((get_fsr() >> 17) & 0x7) : 7;
-#else
- fpu_vers = ((get_fsr() >> 17) & 0x7);
-#endif
+
+ if (psr_impl == PSR_IMPL_LEON)
+ fpu_vers = get_psr() & PSR_EF ? ((get_fsr() >> 17) & 0x7) : 7;
+ else
+ fpu_vers = ((get_fsr() >> 17) & 0x7);
put_psr(psr);
/* FIXME */
1: b,a 1b
-#ifdef CONFIG_SPARC_LEON
.globl smpleon_ipi
.extern leon_ipi_interrupt
/* SMP per-cpu IPI interrupts are handled specially. */
b ret_trap_lockless_ipi
clr %l6
-#endif /* CONFIG_SPARC_LEON */
-
#endif /* CONFIG_SMP */
/* This routine handles illegal instructions and privileged
mov 0x400, %l5
mov 0x300, %l4
- lda [%l5] ASI_M_MMUREGS, %l6 ! read sfar first
- lda [%l4] ASI_M_MMUREGS, %l5 ! read sfsr last
+LEON_PI(lda [%l5] ASI_LEON_MMUREGS, %l6) ! read sfar first
+SUN_PI_(lda [%l5] ASI_M_MMUREGS, %l6) ! read sfar first
+
+LEON_PI(lda [%l4] ASI_LEON_MMUREGS, %l5) ! read sfsr last
+SUN_PI_(lda [%l4] ASI_M_MMUREGS, %l5) ! read sfsr last
andn %l6, 0xfff, %l6
srl %l5, 6, %l5 ! and encode all info into l7
cmp %glob_tmp, %sp
bleu,a 1f
- lda [%g0] ASI_M_MMUREGS, %glob_tmp ! read MMU control
+LEON_PI( lda [%g0] ASI_LEON_MMUREGS, %glob_tmp) ! read MMU control
+SUN_PI_( lda [%g0] ASI_M_MMUREGS, %glob_tmp) ! read MMU control
trap_setup_user_stack_is_bolixed:
/* From user/kernel into invalid window w/bad user
1:
/* Clear the fault status and turn on the no_fault bit. */
or %glob_tmp, 0x2, %glob_tmp ! or in no_fault bit
- sta %glob_tmp, [%g0] ASI_M_MMUREGS ! set it
+LEON_PI(sta %glob_tmp, [%g0] ASI_LEON_MMUREGS) ! set it
+SUN_PI_(sta %glob_tmp, [%g0] ASI_M_MMUREGS) ! set it
/* Dump the registers and cross fingers. */
STORE_WINDOW(sp)
/* Clear the no_fault bit and check the status. */
andn %glob_tmp, 0x2, %glob_tmp
- sta %glob_tmp, [%g0] ASI_M_MMUREGS
+LEON_PI(sta %glob_tmp, [%g0] ASI_LEON_MMUREGS)
+SUN_PI_(sta %glob_tmp, [%g0] ASI_M_MMUREGS)
+
mov AC_M_SFAR, %glob_tmp
- lda [%glob_tmp] ASI_M_MMUREGS, %g0
+LEON_PI(lda [%glob_tmp] ASI_LEON_MMUREGS, %g0)
+SUN_PI_(lda [%glob_tmp] ASI_M_MMUREGS, %g0)
+
mov AC_M_SFSR, %glob_tmp
- lda [%glob_tmp] ASI_M_MMUREGS, %glob_tmp ! save away status of winstore
+LEON_PI(lda [%glob_tmp] ASI_LEON_MMUREGS, %glob_tmp)! save away status of winstore
+SUN_PI_(lda [%glob_tmp] ASI_M_MMUREGS, %glob_tmp) ! save away status of winstore
+
andcc %glob_tmp, 0x2, %g0 ! did we fault?
bne trap_setup_user_stack_is_bolixed ! failure
nop
* the cpu-type
*/
.align 4
-cputyp:
- .word 1
-
- .align 4
.globl cputypval
cputypval:
.asciz "sun4m"
.align 4
-sun4c_notsup:
- .asciz "Sparc-Linux sun4/sun4c support does no longer exist.\n\n"
+notsup:
+ .asciz "Sparc-Linux sun4/sun4c or MMU-less not supported\n\n"
.align 4
sun4e_notsup:
tst %o0
be no_sun4u_here
mov %g4, %o7 /* Previous %o7. */
-
+
mov %o0, %l0 ! stash away romvec
mov %o0, %g7 ! put it here too
mov %o1, %l1 ! stash away debug_vec too
set current_pc, %g5
cmp %g3, %g5
be already_mapped
- nop
+ nop
/* %l6 will hold the offset we have to subtract
* from absolute symbols in order to access areas
bne not_a_sun4
nop
-halt_sun4_or_sun4c:
+halt_notsup:
ld [%g7 + 0x68], %o1
- set sun4c_notsup, %o0
+ set notsup, %o0
sub %o0, %l6, %o0
call %o1
nop
nop
not_a_sun4:
+ /* It looks like this is a machine we support.
+ * Now find out what MMU we are dealing with
+ * LEON - identified by the psr.impl field
+ * Viking - identified by the psr.impl field
+ * In all other cases a sun4m srmmu.
+ * We check that the MMU is enabled in all cases.
+ */
+
+ /* Check if this is a LEON CPU */
+ rd %psr, %g3
+ srl %g3, PSR_IMPL_SHIFT, %g3
+ and %g3, PSR_IMPL_SHIFTED_MASK, %g3
+ cmp %g3, PSR_IMPL_LEON
+ be leon_remap /* It is a LEON - jump */
+ nop
+
+ /* Sanity-check, is MMU enabled */
lda [%g0] ASI_M_MMUREGS, %g1
andcc %g1, 1, %g0
- be halt_sun4_or_sun4c
+ be halt_notsup
nop
-srmmu_remap:
- /* First, check for a viking (TI) module. */
- set 0x40000000, %g2
- rd %psr, %g3
- and %g2, %g3, %g3
- subcc %g3, 0x0, %g0
- bz srmmu_nviking
+ /* Check for a viking (TI) module. */
+ cmp %g3, PSR_IMPL_TI
+ bne srmmu_not_viking
nop
/* Figure out what kind of viking we are on.
lda [%g0] ASI_M_MMUREGS, %g3 ! peek in the control reg
and %g2, %g3, %g3
subcc %g3, 0x0, %g0
- bnz srmmu_nviking ! is in mbus mode
+ bnz srmmu_not_viking ! is in mbus mode
nop
-
+
rd %psr, %g3 ! DO NOT TOUCH %g3
andn %g3, PSR_ET, %g2
wr %g2, 0x0, %psr
WRITE_PAUSE
-
+
/* Get context table pointer, then convert to
* a physical address, which is 36 bits.
*/
lda [%g4] ASI_M_BYPASS, %o1 ! This is a level 1 ptr
srl %o1, 0x4, %o1 ! Clear low 4 bits
sll %o1, 0x8, %o1 ! Make physical
-
+
/* Ok, pull in the PTD. */
lda [%o1] ASI_M_BYPASS, %o2 ! This is the 0x0 16MB pgd
/* Calculate to KERNBASE entry. */
- add %o1, KERNBASE >> (SRMMU_PGDIR_SHIFT - 2), %o3
+ add %o1, KERNBASE >> (SRMMU_PGDIR_SHIFT - 2), %o3
/* Poke the entry into the calculated address. */
sta %o2, [%o3] ASI_M_BYPASS
b go_to_highmem
nop
+srmmu_not_viking:
/* This works on viking's in Mbus mode and all
* other MBUS modules. It is virtually the same as
* the above madness sans turning traps off and flipping
* the AC bit.
*/
-srmmu_nviking:
set AC_M_CTPR, %g1
lda [%g1] ASI_M_MMUREGS, %g1 ! get ctx table ptr
sll %g1, 0x4, %g1 ! make physical addr
nop ! wheee....
+leon_remap:
+ /* Sanity-check, is MMU enabled */
+ lda [%g0] ASI_LEON_MMUREGS, %g1
+ andcc %g1, 1, %g0
+ be halt_notsup
+ nop
+
+ /* Same code as in the srmmu_not_viking case,
+ * with the LEON ASI for mmuregs
+ */
+ set AC_M_CTPR, %g1
+ lda [%g1] ASI_LEON_MMUREGS, %g1 ! get ctx table ptr
+ sll %g1, 0x4, %g1 ! make physical addr
+ lda [%g1] ASI_M_BYPASS, %g1 ! ptr to level 1 pg_table
+ srl %g1, 0x4, %g1
+ sll %g1, 0x8, %g1 ! make phys addr for l1 tbl
+
+ lda [%g1] ASI_M_BYPASS, %g2 ! get level1 entry for 0x0
+ add %g1, KERNBASE >> (SRMMU_PGDIR_SHIFT - 2), %g3
+ sta %g2, [%g3] ASI_M_BYPASS ! place at KERNBASE entry
+ b go_to_highmem
+ nop ! wheee....
+
/* Now do a non-relative jump so that PC is in high-memory */
go_to_highmem:
set execute_in_high_mem, %g1
sethi %hi(linux_dbvec), %g1
st %o1, [%g1 + %lo(linux_dbvec)]
-/* Get the machine type via the mysterious romvec node operations. */
-
+ /* Get the machine type via the romvec
+ * getprops node operation
+ */
add %g7, 0x1c, %l1
ld [%l1], %l0
ld [%l0], %l0
! to a buf where above string
! will get stored by the prom.
-#ifdef CONFIG_SPARC_LEON
- /* no cpu-type check is needed, it is a SPARC-LEON */
+ /* Check value of "compatible" property.
+ * "value" => "model"
+ * leon => sparc_leon
+ * sun4m => sun4m
+ * sun4s => sun4m
+ * sun4d => sun4d
+ * sun4e => "no_sun4e_here"
+ * '*' => "no_sun4u_here"
+ * Check single letters only
+ */
+
+ set cputypval, %o2
+ /* If cputypval[0] == 'l' (lower case letter L) this is leon */
+ ldub [%o2], %l1
+ cmp %l1, 'l'
+ be leon_init
+ nop
+
+ /* Check cputypval[4] to find the sun model */
+ ldub [%o2 + 0x4], %l1
+
+ cmp %l1, 'm'
+ be sun4m_init
+ cmp %l1, 's'
+ be sun4m_init
+ cmp %l1, 'd'
+ be sun4d_init
+ cmp %l1, 'e'
+ be no_sun4e_here ! Could be a sun4e.
+ nop
+ b no_sun4u_here ! AIEEE, a V9 sun4u... Get our BIG BROTHER kernel :))
+ nop
+
+leon_init:
+ /* LEON CPU - set boot_cpu_id */
sethi %hi(boot_cpu_id), %g2 ! boot-cpu index
#ifdef CONFIG_SMP
ba continue_boot
nop
-#endif
-
-/* Check to cputype. We may be booted on a sun4u (64 bit box),
- * and sun4d needs special treatment.
- */
-
- set cputypval, %o2
- ldub [%o2 + 0x4], %l1
-
- cmp %l1, 'm'
- be sun4m_init
- cmp %l1, 's'
- be sun4m_init
- cmp %l1, 'd'
- be sun4d_init
- cmp %l1, 'e'
- be no_sun4e_here ! Could be a sun4e.
- nop
- b no_sun4u_here ! AIEEE, a V9 sun4u... Get our BIG BROTHER kernel :))
- nop
/* CPUID in bootbus can be found at PA 0xff0140000 */
#define SUN4D_BOOTBUS_CPUID 0xf0140000
/* This sucks, apparently this makes Vikings call prom panic, will fix later */
2:
rd %psr, %o1
- srl %o1, 28, %o1 ! Get a type of the CPU
+ srl %o1, PSR_IMPL_SHIFT, %o1 ! Get a type of the CPU
- subcc %o1, 4, %g0 ! TI: Viking or MicroSPARC
+ subcc %o1, PSR_IMPL_TI, %g0 ! TI: Viking or MicroSPARC
be continue_boot
nop
/* Aieee, now set PC and nPC, enable traps, give ourselves a stack and it's
* show-time!
*/
-
- sethi %hi(cputyp), %o0
- st %g4, [%o0 + %lo(cputyp)]
-
/* Turn on Supervisor, EnableFloating, and all the PIL bits.
* Also puts us in register window zero with traps off.
*/
set __bss_start , %o0 ! First address of BSS
set _end , %o1 ! Last address of BSS
add %o0, 0x1, %o0
-1:
+1:
stb %g0, [%o0]
subcc %o0, %o1, %g0
bl 1b
set dest, %g2; \
ld [%g5], %g4; \
st %g4, [%g2];
-
+
/* Patch for window spills... */
PATCH_INSN(spnwin_patch1_7win, spnwin_patch1)
PATCH_INSN(spnwin_patch2_7win, spnwin_patch2)
st %g4, [%g5 + 0x18]
st %g4, [%g5 + 0x1c]
-2:
+2:
sethi %hi(nwindows), %g4
st %g3, [%g4 + %lo(nwindows)] ! store final value
sub %g3, 0x1, %g3
wr %g3, PSR_ET, %psr
WRITE_PAUSE
- /* First we call prom_init() to set up PROMLIB, then
- * off to start_kernel().
- */
-
+ /* Call sparc32_start_kernel(struct linux_romvec *rp) */
sethi %hi(prom_vector_p), %g5
ld [%g5 + %lo(prom_vector_p)], %o0
- call prom_init
+ call sparc32_start_kernel
nop
- call start_kernel
- nop
-
/* We should not get here. */
call halt_me
nop
.asciz "write"
.align 4
sun4u_6:
- .asciz "\n\rOn sun4u you have to use UltraLinux (64bit) kernel\n\rand not a 32bit sun4[cdem] version\n\r\n\r"
+ .asciz "\n\rOn sun4u you have to use sparc64 kernel\n\rand not a sparc32 version\n\r\n\r"
sun4u_6e:
.align 4
sun4u_7:
/* This function must make sure that caches and memory are coherent after DMA
* On LEON systems without cache snooping it flushes the entire D-CACHE.
*/
-#ifndef CONFIG_SPARC_LEON
static inline void dma_make_coherent(unsigned long pa, unsigned long len)
{
+ if (sparc_cpu_model == sparc_leon) {
+ if (!sparc_leon3_snooping_enabled())
+ leon_flush_dcache_all();
+ }
}
-#else
-static inline void dma_make_coherent(unsigned long pa, unsigned long len)
-{
- if (!sparc_leon3_snooping_enabled())
- leon_flush_dcache_all();
-}
-#endif
static void __iomem *_sparc_ioremap(struct resource *res, u32 bus, u32 pa, int sz);
static void __iomem *_sparc_alloc_io(unsigned int busno, unsigned long phys,
#endif /* CONFIG_SBUS */
-/* LEON reuses PCI DMA ops */
-#if defined(CONFIG_PCI) || defined(CONFIG_SPARC_LEON)
-
/* Allocate and map kernel buffer using consistent mode DMA for a device.
* hwdev should be valid struct pci_dev pointer for PCI devices.
*/
};
EXPORT_SYMBOL(pci32_dma_ops);
-#endif /* CONFIG_PCI || CONFIG_SPARC_LEON */
+/* leon re-uses pci32_dma_ops */
+struct dma_map_ops *leon_dma_ops = &pci32_dma_ops;
+EXPORT_SYMBOL(leon_dma_ops);
-#ifdef CONFIG_SPARC_LEON
-struct dma_map_ops *dma_ops = &pci32_dma_ops;
-#elif defined(CONFIG_SBUS)
struct dma_map_ops *dma_ops = &sbus_dma_ops;
-#endif
-
EXPORT_SYMBOL(dma_ops);
unsigned int cpu_irq;
int err;
-#if defined CONFIG_SMP && !defined CONFIG_SPARC_LEON
- struct tt_entry *trap_table;
-#endif
err = request_irq(irq, irq_handler, 0, "floppy", NULL);
if (err)
table[SP_TRAP_IRQ1+(cpu_irq-1)].inst_four = SPARC_NOP;
INSTANTIATE(sparc_ttable)
-#if defined CONFIG_SMP && !defined CONFIG_SPARC_LEON
- trap_table = &trapbase_cpu1;
- INSTANTIATE(trap_table)
- trap_table = &trapbase_cpu2;
- INSTANTIATE(trap_table)
- trap_table = &trapbase_cpu3;
- INSTANTIATE(trap_table)
+
+#if defined CONFIG_SMP
+ if (sparc_cpu_model != sparc_leon) {
+ struct tt_entry *trap_table;
+
+ trap_table = &trapbase_cpu1;
+ INSTANTIATE(trap_table)
+ trap_table = &trapbase_cpu2;
+ INSTANTIATE(trap_table)
+ trap_table = &trapbase_cpu3;
+ INSTANTIATE(trap_table)
+ }
#endif
#undef INSTANTIATE
/*
#endif
#ifdef CONFIG_SPARC32
+/* setup_32.c */
+void sparc32_start_kernel(struct linux_romvec *rp);
+
/* cpu.c */
extern void cpu_probe(void);
#include <asm/smp.h>
#include <asm/setup.h>
+#include "kernel.h"
#include "prom.h"
#include "irq.h"
#include <linux/pm.h>
#include <asm/leon_amba.h>
+#include <asm/cpu_type.h>
#include <asm/leon.h>
/* List of Systems that need fixup instructions around power-down instruction */
/* Install LEON Power Down function */
static int __init leon_pmc_install(void)
{
- /* Assign power management IDLE handler */
- if (pmc_leon_need_fixup())
- pm_idle = pmc_leon_idle_fixup;
- else
- pm_idle = pmc_leon_idle;
+ if (sparc_cpu_model == sparc_leon) {
+ /* Assign power management IDLE handler */
+ if (pmc_leon_need_fixup())
+ pm_idle = pmc_leon_idle_fixup;
+ else
+ pm_idle = pmc_leon_idle;
- printk(KERN_INFO "leon: power management initialized\n");
+ printk(KERN_INFO "leon: power management initialized\n");
+ }
return 0;
}
#include "kernel.h"
-#ifdef CONFIG_SPARC_LEON
-
#include "irq.h"
extern ctxd_t *srmmu_ctx_table_phys;
static int smp_processors_ready;
extern volatile unsigned long cpu_callin_map[NR_CPUS];
extern cpumask_t smp_commenced_mask;
-void __init leon_configure_cache_smp(void);
+void __cpuinit leon_configure_cache_smp(void);
static void leon_ipi_init(void);
/* IRQ number of LEON IPIs */
extern struct linux_prom_registers smp_penguin_ctable;
-void __init leon_configure_cache_smp(void)
+void __cpuinit leon_configure_cache_smp(void)
{
unsigned long cfg = sparc_leon3_get_dcachecfg();
int me = smp_processor_id();
sparc32_ipi_ops = &leon_ipi_ops;
}
-
-#endif /* CONFIG_SPARC_LEON */
struct task_struct *last_task_used_math = NULL;
struct thread_info *current_set[NR_CPUS];
-#ifndef CONFIG_SMP
-
/*
* the idle loop on a Sparc... ;)
*/
void cpu_idle(void)
{
- /* endless idle loop with no priority at all */
- for (;;) {
- if (pm_idle) {
- while (!need_resched())
- (*pm_idle)();
- } else {
- while (!need_resched())
- cpu_relax();
- }
- schedule_preempt_disabled();
- }
-}
-
-#else
+ set_thread_flag(TIF_POLLING_NRFLAG);
-/* This is being executed in task 0 'user space'. */
-void cpu_idle(void)
-{
- set_thread_flag(TIF_POLLING_NRFLAG);
/* endless idle loop with no priority at all */
- while(1) {
-#ifdef CONFIG_SPARC_LEON
- if (pm_idle) {
- while (!need_resched())
+ for (;;) {
+ while (!need_resched()) {
+ if (pm_idle)
(*pm_idle)();
- } else
-#endif
- {
- while (!need_resched())
+ else
cpu_relax();
}
schedule_preempt_disabled();
}
}
-#endif
-
/* XXX cli/sti -> local_irq_xxx here, check this works once SMP is fixed. */
void machine_halt(void)
{
#include <linux/of_pdt.h>
#include <asm/prom.h>
#include <asm/oplib.h>
-#include <asm/leon.h>
#include "prom.h"
cmp %g1, %fp
bleu ret_trap_user_stack_is_bolixed
mov AC_M_SFSR, %g1
- lda [%g1] ASI_M_MMUREGS, %g0
+LEON_PI(lda [%g1] ASI_LEON_MMUREGS, %g0)
+SUN_PI_(lda [%g1] ASI_M_MMUREGS, %g0)
- lda [%g0] ASI_M_MMUREGS, %g1
+LEON_PI(lda [%g0] ASI_LEON_MMUREGS, %g1)
+SUN_PI_(lda [%g0] ASI_M_MMUREGS, %g1)
or %g1, 0x2, %g1
- sta %g1, [%g0] ASI_M_MMUREGS
+LEON_PI(sta %g1, [%g0] ASI_LEON_MMUREGS)
+SUN_PI_(sta %g1, [%g0] ASI_M_MMUREGS)
restore %g0, %g0, %g0
save %g0, %g0, %g0
andn %g1, 0x2, %g1
- sta %g1, [%g0] ASI_M_MMUREGS
+LEON_PI(sta %g1, [%g0] ASI_LEON_MMUREGS)
+SUN_PI_(sta %g1, [%g0] ASI_M_MMUREGS)
mov AC_M_SFAR, %g2
- lda [%g2] ASI_M_MMUREGS, %g2
+LEON_PI(lda [%g2] ASI_LEON_MMUREGS, %g2)
+SUN_PI_(lda [%g2] ASI_M_MMUREGS, %g2)
mov AC_M_SFSR, %g1
- lda [%g1] ASI_M_MMUREGS, %g1
+LEON_PI(lda [%g1] ASI_LEON_MMUREGS, %g1)
+SUN_PI_(lda [%g1] ASI_M_MMUREGS, %g1)
andcc %g1, 0x2, %g0
be ret_trap_userwins_ok
nop
#include <linux/cpu.h>
#include <linux/kdebug.h>
#include <linux/export.h>
+#include <linux/start_kernel.h>
#include <asm/io.h>
#include <asm/processor.h>
#include <asm/cpudata.h>
#include <asm/setup.h>
#include <asm/cacheflush.h>
+#include <asm/sections.h>
#include "kernel.h"
}
}
+struct leon_1insn_patch_entry {
+ unsigned int addr;
+ unsigned int insn;
+};
+
enum sparc_cpu sparc_cpu_model;
EXPORT_SYMBOL(sparc_cpu_model);
-struct tt_entry *sparc_ttable;
+static __init void leon_patch(void)
+{
+ struct leon_1insn_patch_entry *start = (void *)__leon_1insn_patch;
+ struct leon_1insn_patch_entry *end = (void *)__leon_1insn_patch_end;
-struct pt_regs fake_swapper_regs;
+ /* Default instruction is leon - no patching */
+ if (sparc_cpu_model == sparc_leon)
+ return;
-void __init setup_arch(char **cmdline_p)
-{
- int i;
- unsigned long highest_paddr;
+ while (start < end) {
+ unsigned long addr = start->addr;
- sparc_ttable = (struct tt_entry *) &trapbase;
+ *(unsigned int *)(addr) = start->insn;
+ flushi(addr);
- /* Initialize PROM console and command line. */
- *cmdline_p = prom_getbootargs();
- strcpy(boot_command_line, *cmdline_p);
- parse_early_param();
+ start++;
+ }
+}
- boot_flags_init(*cmdline_p);
+struct tt_entry *sparc_ttable;
+struct pt_regs fake_swapper_regs;
- register_console(&prom_early_console);
+/* Called from head_32.S - before we have setup anything
+ * in the kernel. Be very careful with what you do here.
+ */
+void __init sparc32_start_kernel(struct linux_romvec *rp)
+{
+ prom_init(rp);
/* Set sparc_cpu_model */
sparc_cpu_model = sun_unknown;
if (!strncmp(&cputypval[0], "leon" , 4))
sparc_cpu_model = sparc_leon;
+ leon_patch();
+ start_kernel();
+}
+
+void __init setup_arch(char **cmdline_p)
+{
+ int i;
+ unsigned long highest_paddr;
+
+ sparc_ttable = (struct tt_entry *) &trapbase;
+
+ /* Initialize PROM console and command line. */
+ *cmdline_p = prom_getbootargs();
+ strcpy(boot_command_line, *cmdline_p);
+ parse_early_param();
+
+ boot_flags_init(*cmdline_p);
+
+ register_console(&prom_early_console);
+
printk("ARCH: ");
switch(sparc_cpu_model) {
case sun4m:
#include "sigutil.h"
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
/* This magic should be in g_upper[0] for all upper parts
* to be valid.
*/
case 2: set.sig[1] = seta[2] + (((long)seta[3]) << 32);
case 1: set.sig[0] = seta[0] + (((long)seta[1]) << 32);
}
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
return;
case 2: set.sig[1] = seta.sig[2] + (((long)seta.sig[3]) << 32);
case 1: set.sig[0] = seta.sig[0] + (((long)seta.sig[1]) << 32);
}
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
return;
segv:
return -EFAULT;
}
-static inline int handle_signal32(unsigned long signr, struct k_sigaction *ka,
+static inline void handle_signal32(unsigned long signr, struct k_sigaction *ka,
siginfo_t *info,
sigset_t *oldset, struct pt_regs *regs)
{
err = setup_frame32(ka, regs, signr, oldset);
if (err)
- return err;
-
- block_sigmask(ka, signr);
- tracehook_signal_handler(signr, info, ka, regs, 0);
+ return;
- return 0;
+ signal_delivered(signr, info, ka, regs, 0);
}
static inline void syscall_restart32(unsigned long orig_i0, struct pt_regs *regs,
if (signr > 0) {
if (restart_syscall)
syscall_restart32(orig_i0, regs, &ka.sa);
- if (handle_signal32(signr, &ka, &info, oldset, regs) == 0) {
- /* A signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TS_RESTORE_SIGMASK flag.
- */
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
- }
+ handle_signal32(signr, &ka, &info, oldset, regs);
return;
}
if (restart_syscall &&
/* If there's no signal to deliver, we just put the saved sigmask
* back
*/
- if (current_thread_info()->status & TS_RESTORE_SIGMASK) {
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
- set_current_blocked(¤t->saved_sigmask);
- }
+ restore_saved_sigmask();
}
struct sigstack32 {
#include "sigutil.h"
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
extern void fpsave(unsigned long *fpregs, unsigned long *fsr,
void *fpqueue, unsigned long *fpqdepth);
extern void fpload(unsigned long *fpregs, unsigned long *fsr);
if (err)
goto segv_and_exit;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
return;
goto segv;
}
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
return;
segv:
return -EFAULT;
}
-static inline int
+static inline void
handle_signal(unsigned long signr, struct k_sigaction *ka,
- siginfo_t *info, sigset_t *oldset, struct pt_regs *regs)
+ siginfo_t *info, struct pt_regs *regs)
{
+ sigset_t *oldset = sigmask_to_save();
int err;
if (ka->sa.sa_flags & SA_SIGINFO)
err = setup_frame(ka, regs, signr, oldset);
if (err)
- return err;
-
- block_sigmask(ka, signr);
- tracehook_signal_handler(signr, info, ka, regs, 0);
+ return;
- return 0;
+ signal_delivered(signr, info, ka, regs, 0);
}
static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs,
{
struct k_sigaction ka;
int restart_syscall;
- sigset_t *oldset;
siginfo_t info;
int signr;
if (pt_regs_is_syscall(regs) && (regs->psr & PSR_C))
regs->u_regs[UREG_G6] = orig_i0;
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
/* If the debugger messes with the program counter, it clears
if (signr > 0) {
if (restart_syscall)
syscall_restart(orig_i0, regs, &ka.sa);
- if (handle_signal(signr, &ka, &info, oldset, regs) == 0) {
- /* a signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag.
- */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- }
+ handle_signal(signr, &ka, &info, regs);
return;
}
if (restart_syscall &&
/* if there's no signal to deliver, we just put the saved sigmask
* back
*/
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- set_current_blocked(¤t->saved_sigmask);
- }
+ restore_saved_sigmask();
}
void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0,
unsigned long thread_info_flags)
{
- if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
+ if (thread_info_flags & _TIF_SIGPENDING)
do_signal(regs, orig_i0);
if (thread_info_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
#include "systbls.h"
#include "sigutil.h"
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
/* {set, get}context() needed for 64-bit SparcLinux userland. */
asmlinkage void sparc64_set_context(struct pt_regs *regs)
{
if (__copy_from_user(&set, &ucp->uc_sigmask, sizeof(sigset_t)))
goto do_sigsegv;
}
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
}
if (test_thread_flag(TIF_32BIT)) {
/* Prevent syscall restart. */
pt_regs_clear_syscall(regs);
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
return;
segv:
return -EFAULT;
}
-static inline int handle_signal(unsigned long signr, struct k_sigaction *ka,
+static inline void handle_signal(unsigned long signr, struct k_sigaction *ka,
siginfo_t *info,
sigset_t *oldset, struct pt_regs *regs)
{
err = setup_rt_frame(ka, regs, signr, oldset,
(ka->sa.sa_flags & SA_SIGINFO) ? info : NULL);
if (err)
- return err;
-
- block_sigmask(ka, signr);
- tracehook_signal_handler(signr, info, ka, regs, 0);
+ return;
- return 0;
+ signal_delivered(signr, info, ka, regs, 0);
}
static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs,
{
struct k_sigaction ka;
int restart_syscall;
- sigset_t *oldset;
+ sigset_t *oldset = sigmask_to_save();
siginfo_t info;
int signr;
(regs->tstate & (TSTATE_XCARRY | TSTATE_ICARRY)))
regs->u_regs[UREG_G6] = orig_i0;
- if (current_thread_info()->status & TS_RESTORE_SIGMASK)
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
#ifdef CONFIG_COMPAT
if (test_thread_flag(TIF_32BIT)) {
extern void do_signal32(sigset_t *, struct pt_regs *);
if (signr > 0) {
if (restart_syscall)
syscall_restart(orig_i0, regs, &ka.sa);
- if (handle_signal(signr, &ka, &info, oldset, regs) == 0) {
- /* A signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TS_RESTORE_SIGMASK flag.
- */
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
- }
+ handle_signal(signr, &ka, &info, oldset, regs);
return;
}
if (restart_syscall &&
/* If there's no signal to deliver, we just put the saved sigmask
* back
*/
- if (current_thread_info()->status & TS_RESTORE_SIGMASK) {
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
- set_current_blocked(¤t->saved_sigmask);
- }
+ restore_saved_sigmask();
}
void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0, unsigned long thread_info_flags)
if (thread_info_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
unsigned long, new_len, unsigned long, flags,
unsigned long, new_addr)
{
- unsigned long ret = -EINVAL;
-
if (test_thread_flag(TIF_32BIT))
- goto out;
-
- down_write(¤t->mm->mmap_sem);
- ret = do_mremap(addr, old_len, new_len, flags, new_addr);
- up_write(¤t->mm->mmap_sem);
-out:
- return ret;
+ return -EINVAL;
+ return sys_mremap(addr, old_len, new_len, flags, new_addr);
}
/* we come to here via sys_nis_syscall so it can setup the regs argument */
b,a smp_do_cpu_idle
-#ifdef CONFIG_SPARC_LEON
-
__CPUINIT
.align 4
.global leon_smp_cpu_startup, smp_penguin_ctable
ld [%g1+4],%g1
srl %g1,4,%g1
set 0x00000100,%g5 /* SRMMU_CTXTBL_PTR */
- sta %g1, [%g5] ASI_M_MMUREGS
+ sta %g1, [%g5] ASI_LEON_MMUREGS
/* Set up a sane %psr -- PIL<0xf> S<0x1> PS<0x1> CWP<0x0> */
set (PSR_PIL | PSR_S | PSR_PS), %g1
nop
b,a smp_do_cpu_idle
-
-#endif
do_fpe_common(regs);
}
-extern int do_mathemu(struct pt_regs *, struct fpustate *);
+extern int do_mathemu(struct pt_regs *, struct fpustate *, bool);
void do_fpother(struct pt_regs *regs)
{
switch ((current_thread_info()->xfsr[0] & 0x1c000)) {
case (2 << 14): /* unfinished_FPop */
case (3 << 14): /* unimplemented_FPop */
- ret = do_mathemu(regs, f);
+ ret = do_mathemu(regs, f, false);
break;
}
if (ret)
} else {
struct fpustate *f = FPUSTATE;
- /* XXX maybe verify XFSR bits like
- * XXX do_fpother() does?
+ /* On UltraSPARC T2 and later, FPU insns which
+ * are not implemented in HW signal an illegal
+ * instruction trap and do not set the FP Trap
+ * Trap in the %fsr to unimplemented_FPop.
*/
- if (do_mathemu(regs, f))
+ if (do_mathemu(regs, f, true))
return;
}
}
*(.sun4v_2insn_patch)
__sun4v_2insn_patch_end = .;
}
+ .leon_1insn_patch : {
+ __leon_1insn_patch = .;
+ *(.leon_1insn_patch)
+ __leon_1insn_patch_end = .;
+ }
.swapper_tsb_phys_patch : {
__swapper_tsb_phys_patch = .;
*(.swapper_tsb_phys_patch)
mov AC_M_SFSR, %glob_tmp
/* Clear the fault status and turn on the no_fault bit. */
- lda [%glob_tmp] ASI_M_MMUREGS, %g0 ! eat SFSR
+LEON_PI(lda [%glob_tmp] ASI_LEON_MMUREGS, %g0) ! eat SFSR
+SUN_PI_(lda [%glob_tmp] ASI_M_MMUREGS, %g0) ! eat SFSR
- lda [%g0] ASI_M_MMUREGS, %glob_tmp ! read MMU control
+LEON_PI(lda [%g0] ASI_LEON_MMUREGS, %glob_tmp) ! read MMU control
+SUN_PI_(lda [%g0] ASI_M_MMUREGS, %glob_tmp) ! read MMU control
or %glob_tmp, 0x2, %glob_tmp ! or in no_fault bit
- sta %glob_tmp, [%g0] ASI_M_MMUREGS ! set it
+LEON_PI(sta %glob_tmp, [%g0] ASI_LEON_MMUREGS) ! set it
+SUN_PI_(sta %glob_tmp, [%g0] ASI_M_MMUREGS) ! set it
/* Dump the registers and cross fingers. */
STORE_WINDOW(sp)
/* Clear the no_fault bit and check the status. */
andn %glob_tmp, 0x2, %glob_tmp
- sta %glob_tmp, [%g0] ASI_M_MMUREGS
+LEON_PI(sta %glob_tmp, [%g0] ASI_LEON_MMUREGS)
+SUN_PI_(sta %glob_tmp, [%g0] ASI_M_MMUREGS)
mov AC_M_SFAR, %glob_tmp
- lda [%glob_tmp] ASI_M_MMUREGS, %g0
+LEON_PI(lda [%glob_tmp] ASI_LEON_MMUREGS, %g0)
+SUN_PI_(lda [%glob_tmp] ASI_M_MMUREGS, %g0)
mov AC_M_SFSR, %glob_tmp
- lda [%glob_tmp] ASI_M_MMUREGS, %glob_tmp
+LEON_PI(lda [%glob_tmp] ASI_LEON_MMUREGS, %glob_tmp)
+SUN_PI_(lda [%glob_tmp] ASI_M_MMUREGS, %glob_tmp)
andcc %glob_tmp, 0x2, %g0 ! did we fault?
be,a spwin_finish_up + 0x4 ! cool beans, success
restore %g0, %g0, %g0
mov AC_M_SFSR, %l4
cmp %l5, %sp
bleu fwin_user_stack_is_bolixed
- lda [%l4] ASI_M_MMUREGS, %g0 ! clear fault status
+LEON_PI( lda [%l4] ASI_LEON_MMUREGS, %g0) ! clear fault status
+SUN_PI_( lda [%l4] ASI_M_MMUREGS, %g0) ! clear fault status
/* The technique is, turn off faults on this processor,
* just let the load rip, then check the sfsr to see if
* a fault did occur. Then we turn on fault traps again
* and branch conditionally based upon what happened.
*/
- lda [%g0] ASI_M_MMUREGS, %l5 ! read mmu-ctrl reg
+LEON_PI(lda [%g0] ASI_LEON_MMUREGS, %l5) ! read mmu-ctrl reg
+SUN_PI_(lda [%g0] ASI_M_MMUREGS, %l5) ! read mmu-ctrl reg
or %l5, 0x2, %l5 ! turn on no-fault bit
- sta %l5, [%g0] ASI_M_MMUREGS ! store it
+LEON_PI(sta %l5, [%g0] ASI_LEON_MMUREGS) ! store it
+SUN_PI_(sta %l5, [%g0] ASI_M_MMUREGS) ! store it
/* Cross fingers and go for it. */
LOAD_WINDOW(sp)
/* LOCATION: Window 'T' */
- lda [%g0] ASI_M_MMUREGS, %twin_tmp1 ! load mmu-ctrl again
- andn %twin_tmp1, 0x2, %twin_tmp1 ! clear no-fault bit
- sta %twin_tmp1, [%g0] ASI_M_MMUREGS ! store it
+LEON_PI(lda [%g0] ASI_LEON_MMUREGS, %twin_tmp1) ! load mmu-ctrl again
+SUN_PI_(lda [%g0] ASI_M_MMUREGS, %twin_tmp1) ! load mmu-ctrl again
+ andn %twin_tmp1, 0x2, %twin_tmp1 ! clear no-fault bit
+LEON_PI(sta %twin_tmp1, [%g0] ASI_LEON_MMUREGS) ! store it
+SUN_PI_(sta %twin_tmp1, [%g0] ASI_M_MMUREGS) ! store it
mov AC_M_SFAR, %twin_tmp2
- lda [%twin_tmp2] ASI_M_MMUREGS, %g0 ! read fault address
+LEON_PI(lda [%twin_tmp2] ASI_LEON_MMUREGS, %g0) ! read fault address
+SUN_PI_(lda [%twin_tmp2] ASI_M_MMUREGS, %g0) ! read fault address
mov AC_M_SFSR, %twin_tmp2
- lda [%twin_tmp2] ASI_M_MMUREGS, %twin_tmp2 ! read fault status
- andcc %twin_tmp2, 0x2, %g0 ! did fault occur?
+LEON_PI(lda [%twin_tmp2] ASI_LEON_MMUREGS, %twin_tmp2) ! read fault status
+SUN_PI_(lda [%twin_tmp2] ASI_M_MMUREGS, %twin_tmp2) ! read fault status
+ andcc %twin_tmp2, 0x2, %g0 ! did fault occur?
- bne 1f ! yep, cleanup
+ bne 1f ! yep, cleanup
nop
wr %t_psr, 0x0, %psr
u64 q[2];
} *argp;
-int do_mathemu(struct pt_regs *regs, struct fpustate *f)
+int do_mathemu(struct pt_regs *regs, struct fpustate *f, bool illegal_insn_trap)
{
unsigned long pc = regs->tpc;
unsigned long tstate = regs->tstate;
case FSQRTS: {
unsigned long x = current_thread_info()->xfsr[0];
- x = (x >> 14) & 0xf;
+ x = (x >> 14) & 0x7;
TYPE(x,1,1,1,1,0,0);
break;
}
case FSQRTD: {
unsigned long x = current_thread_info()->xfsr[0];
- x = (x >> 14) & 0xf;
+ x = (x >> 14) & 0x7;
TYPE(x,2,1,2,1,0,0);
break;
}
if (type) {
argp rs1 = NULL, rs2 = NULL, rd = NULL;
- freg = (current_thread_info()->xfsr[0] >> 14) & 0xf;
- if (freg != (type >> 9))
- goto err;
+ /* Starting with UltraSPARC-T2, the cpu does not set the FP Trap
+ * Type field in the %fsr to unimplemented_FPop. Nor does it
+ * use the fp_exception_other trap. Instead it signals an
+ * illegal instruction and leaves the FP trap type field of
+ * the %fsr unchanged.
+ */
+ if (!illegal_insn_trap) {
+ int ftt = (current_thread_info()->xfsr[0] >> 14) & 0x7;
+ if (ftt != (type >> 9))
+ goto err;
+ }
current_thread_info()->xfsr[0] &= ~0x1c000;
freg = ((insn >> 14) & 0x1f);
switch (type & 0x3) {
obj-y += fault_$(BITS).o
obj-y += init_$(BITS).o
obj-$(CONFIG_SPARC32) += extable.o srmmu.o iommu.o io-unit.o
+obj-$(CONFIG_SPARC32) += srmmu_access.o
obj-$(CONFIG_SPARC32) += hypersparc.o viking.o tsunami.o swift.o
-obj-$(CONFIG_SPARC_LEON)+= leon_mm.o
+obj-$(CONFIG_SPARC32) += leon_mm.o
# Only used by sparc64
obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
}
-unsigned long srmmu_swprobe(unsigned long vaddr, unsigned long *paddr)
+unsigned long leon_swprobe(unsigned long vaddr, unsigned long *paddr)
{
unsigned int ctxtbl;
}
}
+/* These flush types are not available on all chips... */
+static inline unsigned long srmmu_probe(unsigned long vaddr)
+{
+ unsigned long retval;
+
+ if (sparc_cpu_model != sparc_leon) {
+
+ vaddr &= PAGE_MASK;
+ __asm__ __volatile__("lda [%1] %2, %0\n\t" :
+ "=r" (retval) :
+ "r" (vaddr | 0x400), "i" (ASI_M_FLUSH_PROBE));
+ } else {
+ retval = leon_swprobe(vaddr, 0);
+ }
+ return retval;
+}
+
/*
* This is much cleaner than poking around physical address space
* looking at the prom's page table directly which is what most
break; /* probably wrap around */
if(start == 0xfef00000)
start = KADB_DEBUGGER_BEGVM;
- if(!(prompte = srmmu_hwprobe(start))) {
+ if(!(prompte = srmmu_probe(start))) {
start += PAGE_SIZE;
continue;
}
what = 0;
if(!(start & ~(SRMMU_REAL_PMD_MASK))) {
- if(srmmu_hwprobe((start-PAGE_SIZE) + SRMMU_REAL_PMD_SIZE) == prompte)
+ if(srmmu_probe((start-PAGE_SIZE) + SRMMU_REAL_PMD_SIZE) == prompte)
what = 1;
}
if(!(start & ~(SRMMU_PGDIR_MASK))) {
- if(srmmu_hwprobe((start-PAGE_SIZE) + SRMMU_PGDIR_SIZE) ==
+ if(srmmu_probe((start-PAGE_SIZE) + SRMMU_PGDIR_SIZE) ==
prompte)
what = 2;
}
#ifdef TURBOSPARC_WRITEBACK
volatile unsigned long clear;
- if (srmmu_hwprobe(page))
+ if (srmmu_probe(page))
turbosparc_flush_page_cache(page);
clear = srmmu_get_fstatus();
#endif
--- /dev/null
+/* Assembler variants of srmmu access functions.
+ * Implemented in assembler to allow run-time patching.
+ * LEON uses a different ASI for MMUREGS than SUN.
+ *
+ * The leon_1insn_patch infrastructure is used
+ * for the run-time patching.
+ */
+
+#include <linux/linkage.h>
+
+#include <asm/asmmacro.h>
+#include <asm/pgtsrmmu.h>
+#include <asm/asi.h>
+
+/* unsigned int srmmu_get_mmureg(void) */
+ENTRY(srmmu_get_mmureg)
+LEON_PI(lda [%g0] ASI_LEON_MMUREGS, %o0)
+SUN_PI_(lda [%g0] ASI_M_MMUREGS, %o0)
+ retl
+ nop
+ENDPROC(srmmu_get_mmureg)
+
+/* void srmmu_set_mmureg(unsigned long regval) */
+ENTRY(srmmu_set_mmureg)
+LEON_PI(sta %o0, [%g0] ASI_LEON_MMUREGS)
+SUN_PI_(sta %o0, [%g0] ASI_M_MMUREGS)
+ retl
+ nop
+ENDPROC(srmmu_set_mmureg)
+
+/* void srmmu_set_ctable_ptr(unsigned long paddr) */
+ENTRY(srmmu_set_ctable_ptr)
+ /* paddr = ((paddr >> 4) & SRMMU_CTX_PMASK); */
+ srl %o0, 4, %g1
+ and %g1, SRMMU_CTX_PMASK, %g1
+
+ mov SRMMU_CTXTBL_PTR, %g2
+LEON_PI(sta %g1, [%g2] ASI_LEON_MMUREGS)
+SUN_PI_(sta %g1, [%g2] ASI_M_MMUREGS)
+ retl
+ nop
+ENDPROC(srmmu_set_ctable_ptr)
+
+
+/* void srmmu_set_context(int context) */
+ENTRY(srmmu_set_context)
+ mov SRMMU_CTX_REG, %g1
+LEON_PI(sta %o0, [%g1] ASI_LEON_MMUREGS)
+SUN_PI_(sta %o0, [%g1] ASI_M_MMUREGS)
+ retl
+ nop
+ENDPROC(srmmu_set_context)
+
+
+/* int srmmu_get_context(void) */
+ENTRY(srmmu_get_context)
+ mov SRMMU_CTX_REG, %o0
+LEON_PI(lda [%o0] ASI_LEON_MMUREGS, %o0)
+SUN_PI_(lda [%o0] ASI_M_MMUREGS, %o0)
+ retl
+ nop
+ENDPROC(srmmu_get_context)
+
+
+/* unsigned int srmmu_get_fstatus(void) */
+ENTRY(srmmu_get_fstatus)
+ mov SRMMU_FAULT_STATUS, %o0
+LEON_PI(lda [%o0] ASI_LEON_MMUREGS, %o0)
+SUN_PI_(lda [%o0] ASI_M_MMUREGS, %o0)
+ retl
+ nop
+ENDPROC(srmmu_get_fstatus)
+
+
+/* unsigned int srmmu_get_faddr(void) */
+ENTRY(srmmu_get_faddr)
+ mov SRMMU_FAULT_ADDR, %o0
+LEON_PI(lda [%o0] ASI_LEON_MMUREGS, %o0)
+SUN_PI_(lda [%o0] ASI_M_MMUREGS, %o0)
+ retl
+ nop
+ENDPROC(srmmu_get_faddr)
typedef __kernel_mode_t compat_mode_t;
typedef __kernel_dev_t compat_dev_t;
typedef __kernel_loff_t compat_loff_t;
-typedef __kernel_nlink_t compat_nlink_t;
typedef __kernel_ipc_pid_t compat_ipc_pid_t;
typedef __kernel_daddr_t compat_daddr_t;
typedef __kernel_fsid_t compat_fsid_t;
{
struct thread_info *ti = current_thread_info();
ti->status |= TS_RESTORE_SIGMASK;
- set_bit(TIF_SIGPENDING, &ti->flags);
+ WARN_ON(!test_bit(TIF_SIGPENDING, &ti->flags));
+}
+static inline void clear_restore_sigmask(void)
+{
+ current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+}
+static inline bool test_restore_sigmask(void)
+{
+ return current_thread_info()->status & TS_RESTORE_SIGMASK;
+}
+static inline bool test_and_clear_restore_sigmask(void)
+{
+ struct thread_info *ti = current_thread_info();
+ if (!(ti->status & TS_RESTORE_SIGMASK))
+ return false;
+ ti->status &= ~TS_RESTORE_SIGMASK;
+ return true;
}
#endif /* !__ASSEMBLY__ */
struct compat_ucontext uc;
};
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
long compat_sys_rt_sigaction(int sig, struct compat_sigaction __user *act,
struct compat_sigaction __user *oact,
size_t sigsetsize)
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
if (thread_info_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
return 1;
}
if (thread_info_flags & _TIF_SINGLESTEP) {
#define DEBUG_SIG 0
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
SYSCALL_DEFINE3(sigaltstack, const stack_t __user *, uss,
stack_t __user *, uoss, struct pt_regs *, regs)
{
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
* OK, we're invoking a handler
*/
-static int handle_signal(unsigned long sig, siginfo_t *info,
- struct k_sigaction *ka, sigset_t *oldset,
+static void handle_signal(unsigned long sig, siginfo_t *info,
+ struct k_sigaction *ka,
struct pt_regs *regs)
{
+ sigset_t *oldset = sigmask_to_save();
int ret;
/* Are we from a system call? */
else
#endif
ret = setup_rt_frame(sig, ka, info, oldset, regs);
- if (ret == 0) {
- /* This code is only called from system calls or from
- * the work_pending path in the return-to-user code, and
- * either way we can re-enable interrupts unconditionally.
- */
- block_sigmask(ka, sig);
- }
-
- return ret;
+ if (ret)
+ return;
+ signal_delivered(sig, info, ka, regs, 0);
}
/*
siginfo_t info;
int signr;
struct k_sigaction ka;
- sigset_t *oldset;
/*
* i386 will check if we're coming from kernel mode and bail out
* helpful, we can reinstate the check on "!user_mode(regs)".
*/
- if (current_thread_info()->status & TS_RESTORE_SIGMASK)
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
/* Whee! Actually deliver the signal. */
- if (handle_signal(signr, &info, &ka, oldset, regs) == 0) {
- /*
- * A signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TS_RESTORE_SIGMASK flag.
- */
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
- }
-
+ handle_signal(signr, &info, &ka, regs);
goto done;
}
}
/* If there's no signal to deliver, just put the saved sigmask back. */
- if (current_thread_info()->status & TS_RESTORE_SIGMASK) {
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
+ restore_saved_sigmask();
done:
/* Avoid double syscall restart if there are nested signals. */
#ifndef __FRAME_KERN_H_
#define __FRAME_KERN_H_
-#define _S(nr) (1<<((nr)-1))
-#define _BLOCKABLE (~(_S(SIGKILL) | _S(SIGSTOP)))
-
extern int setup_signal_stack_sc(unsigned long stack_top, int sig,
struct k_sigaction *ka,
struct pt_regs *regs,
schedule();
if (test_thread_flag(TIF_SIGPENDING))
do_signal();
- if (test_and_clear_thread_flag(TIF_NOTIFY_RESUME)) {
+ if (test_and_clear_thread_flag(TIF_NOTIFY_RESUME))
tracehook_notify_resume(¤t->thread.regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
- }
}
void exit_thread(void)
*/
#include "linux/sched.h"
+#include "linux/spinlock.h"
#include "linux/slab.h"
+#include "linux/oom.h"
#include "kern_util.h"
#include "os.h"
#include "skas.h"
struct task_struct *p;
int pid;
+ read_lock(&tasklist_lock);
for_each_process(p) {
- if (p->mm == NULL)
- continue;
+ struct task_struct *t;
- pid = p->mm->context.id.u.pid;
+ t = find_lock_task_mm(p);
+ if (!t)
+ continue;
+ pid = t->mm->context.id.u.pid;
+ task_unlock(t);
os_kill_ptraced_process(pid, 1);
}
+ read_unlock(&tasklist_lock);
}
}
EXPORT_SYMBOL(block_signals);
EXPORT_SYMBOL(unblock_signals);
-#define _S(nr) (1<<((nr)-1))
-
-#define _BLOCKABLE (~(_S(SIGKILL) | _S(SIGSTOP)))
-
/*
* OK, we're invoking a handler
*/
-static int handle_signal(struct pt_regs *regs, unsigned long signr,
- struct k_sigaction *ka, siginfo_t *info,
- sigset_t *oldset)
+static void handle_signal(struct pt_regs *regs, unsigned long signr,
+ struct k_sigaction *ka, siginfo_t *info)
{
+ sigset_t *oldset = sigmask_to_save();
unsigned long sp;
int err;
if (err)
force_sigsegv(signr, current);
else
- block_sigmask(ka, signr);
-
- return err;
+ signal_delivered(signr, info, ka, regs, 0);
}
static int kern_do_signal(struct pt_regs *regs)
int sig, handled_sig = 0;
while ((sig = get_signal_to_deliver(&info, &ka_copy, regs, NULL)) > 0) {
- sigset_t *oldset;
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
handled_sig = 1;
/* Whee! Actually deliver the signal. */
- if (!handle_signal(regs, sig, &ka_copy, &info, oldset)) {
- /*
- * a signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag
- */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- break;
- }
+ handle_signal(regs, sig, &ka_copy, &info);
}
/* Did we come from a system call? */
* if there's no signal to deliver, we just put the saved sigmask
* back
*/
- if (!handled_sig && test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
+ if (!handled_sig)
+ restore_saved_sigmask();
return handled_sig;
}
pmd_t *pmd;
pte_t *pte;
int err = -EFAULT;
+ unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE |
+ (is_write ? FAULT_FLAG_WRITE : 0);
*code_out = SEGV_MAPERR;
if (in_atomic())
goto out_nosemaphore;
+retry:
down_read(&mm->mmap_sem);
vma = find_vma(mm, address);
if (!vma)
do {
int fault;
- fault = handle_mm_fault(mm, vma, address, is_write ? FAULT_FLAG_WRITE : 0);
+ fault = handle_mm_fault(mm, vma, address, flags);
+
+ if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+ goto out_nosemaphore;
+
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM) {
goto out_of_memory;
}
BUG();
}
- if (fault & VM_FAULT_MAJOR)
- current->maj_flt++;
- else
- current->min_flt++;
+ if (flags & FAULT_FLAG_ALLOW_RETRY) {
+ if (fault & VM_FAULT_MAJOR)
+ current->maj_flt++;
+ else
+ current->min_flt++;
+ if (fault & VM_FAULT_RETRY) {
+ flags &= ~FAULT_FLAG_ALLOW_RETRY;
+
+ goto retry;
+ }
+ }
pgd = pgd_offset(mm, address);
pud = pud_offset(pgd, address);
#include <asm/cacheflush.h>
#include <asm/ucontext.h>
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
/*
* For UniCore syscalls, we encode the syscall number into the instruction.
*/
int err;
err = __copy_from_user(&set, &sf->uc.uc_sigmask, sizeof(set));
- if (err == 0) {
- sigdelsetmask(&set, ~_BLOCKABLE);
+ if (err == 0)
set_current_blocked(&set);
- }
err |= __get_user(regs->UCreg_00, &sf->uc.uc_mcontext.regs.UCreg_00);
err |= __get_user(regs->UCreg_01, &sf->uc.uc_mcontext.regs.UCreg_01);
/*
* OK, we're invoking a handler
*/
-static int handle_signal(unsigned long sig, struct k_sigaction *ka,
- siginfo_t *info, sigset_t *oldset,
- struct pt_regs *regs, int syscall)
+static void handle_signal(unsigned long sig, struct k_sigaction *ka,
+ siginfo_t *info, struct pt_regs *regs, int syscall)
{
struct thread_info *thread = current_thread_info();
struct task_struct *tsk = current;
- sigset_t blocked;
+ sigset_t *oldset = sigmask_to_save();
int usig = sig;
int ret;
if (ret != 0) {
force_sigsegv(sig, tsk);
- return ret;
+ return;
}
- /*
- * Block the signal if we were successful.
- */
- block_sigmask(ka, sig);
-
- return 0;
+ signal_delivered(sig, info, ka, regs, 0);
}
/*
if (!user_mode(regs))
return;
- if (try_to_freeze())
- goto no_signal;
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
- sigset_t *oldset;
-
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
- if (handle_signal(signr, &ka, &info, oldset, regs, syscall)
- == 0) {
- /*
- * A signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag.
- */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- }
+ handle_signal(signr, &ka, &info, regs, syscall);
return;
}
- no_signal:
/*
* No signal to deliver to the process - restart the syscall.
*/
/* If there's no signal to deliver, we just put the saved
* sigmask back.
*/
- if (test_and_clear_thread_flag(TIF_RESTORE_SIGMASK))
- set_current_blocked(¤t->saved_sigmask);
+ restore_saved_sigmask();
}
asmlinkage void do_notify_resume(struct pt_regs *regs,
if (thread_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
-
obj-$(CONFIG_KVM) += kvm/
# Xen paravirtualization support
# lguest paravirtualization support
obj-$(CONFIG_LGUEST_GUEST) += lguest/
+obj-y += realmode/
obj-y += kernel/
obj-y += mm/
sizeof(frame->extramask))))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (ia32_restore_sigcontext(regs, &frame->sc, &ax))
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (ia32_restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
#include <asm/processor.h>
#include <asm/mmu.h>
#include <asm/mpspec.h>
-#include <asm/trampoline.h>
+#include <asm/realmode.h>
#define COMPILER_DEPENDENT_INT64 long long
#define COMPILER_DEPENDENT_UINT64 unsigned long long
/* Low-level suspend routine. */
extern int acpi_suspend_lowlevel(void);
-extern const unsigned char acpi_wakeup_code[];
-#define acpi_wakeup_address (__pa(TRAMPOLINE_SYM(acpi_wakeup_code)))
-
-/* early initialization routine */
-extern void acpi_reserve_wakeup_memory(void);
+/* Physical address to resume after wakeup */
+#define acpi_wakeup_address ((unsigned long)(real_mode_header->wakeup_start))
/*
* Check if the CPU can handle C2 and deeper
#include <linux/compiler.h>
#include <asm/alternative.h>
+#define BIT_64(n) (U64_C(1) << (n))
+
/*
* These have to be done with inline assembly: that way the bit-setting
* is guaranteed to be atomic. All bit operations return 0 if the bit
ptep->pte_low = pte.pte_low;
}
+#define pmd_read_atomic pmd_read_atomic
+/*
+ * pte_offset_map_lock on 32bit PAE kernels was reading the pmd_t with
+ * a "*pmdp" dereference done by gcc. Problem is, in certain places
+ * where pte_offset_map_lock is called, concurrent page faults are
+ * allowed, if the mmap_sem is hold for reading. An example is mincore
+ * vs page faults vs MADV_DONTNEED. On the page fault side
+ * pmd_populate rightfully does a set_64bit, but if we're reading the
+ * pmd_t with a "*pmdp" on the mincore side, a SMP race can happen
+ * because gcc will not read the 64bit of the pmd atomically. To fix
+ * this all places running pmd_offset_map_lock() while holding the
+ * mmap_sem in read mode, shall read the pmdp pointer using this
+ * function to know if the pmd is null nor not, and in turn to know if
+ * they can run pmd_offset_map_lock or pmd_trans_huge or other pmd
+ * operations.
+ *
+ * Without THP if the mmap_sem is hold for reading, the
+ * pmd can only transition from null to not null while pmd_read_atomic runs.
+ * So there's no need of literally reading it atomically.
+ *
+ * With THP if the mmap_sem is hold for reading, the pmd can become
+ * THP or null or point to a pte (and in turn become "stable") at any
+ * time under pmd_read_atomic, so it's mandatory to read it atomically
+ * with cmpxchg8b.
+ */
+#ifndef CONFIG_TRANSPARENT_HUGEPAGE
+static inline pmd_t pmd_read_atomic(pmd_t *pmdp)
+{
+ pmdval_t ret;
+ u32 *tmp = (u32 *)pmdp;
+
+ ret = (pmdval_t) (*tmp);
+ if (ret) {
+ /*
+ * If the low part is null, we must not read the high part
+ * or we can end up with a partial pmd.
+ */
+ smp_rmb();
+ ret |= ((pmdval_t)*(tmp + 1)) << 32;
+ }
+
+ return (pmd_t) { ret };
+}
+#else /* CONFIG_TRANSPARENT_HUGEPAGE */
+static inline pmd_t pmd_read_atomic(pmd_t *pmdp)
+{
+ return (pmd_t) { atomic64_read((atomic64_t *)pmdp) };
+}
+#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
+
static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
{
set_64bit((unsigned long long *)(ptep), native_pte_val(pte));
typedef unsigned short __kernel_mode_t;
#define __kernel_mode_t __kernel_mode_t
-typedef unsigned short __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
-
typedef unsigned short __kernel_ipc_pid_t;
#define __kernel_ipc_pid_t __kernel_ipc_pid_t
* enable), so that any CPU's that boot up
* after us can get the correct flags.
*/
-extern unsigned long mmu_cr4_features;
+extern unsigned long mmu_cr4_features;
+extern u32 *trampoline_cr4_features;
static inline void set_in_cr4(unsigned long mask)
{
unsigned long cr4;
mmu_cr4_features |= mask;
+ if (trampoline_cr4_features)
+ *trampoline_cr4_features = mmu_cr4_features;
cr4 = read_cr4();
cr4 |= mask;
write_cr4(cr4);
unsigned long cr4;
mmu_cr4_features &= ~mask;
+ if (trampoline_cr4_features)
+ *trampoline_cr4_features = mmu_cr4_features;
cr4 = read_cr4();
cr4 &= ~mask;
write_cr4(cr4);
--- /dev/null
+#ifndef _ARCH_X86_REALMODE_H
+#define _ARCH_X86_REALMODE_H
+
+#include <linux/types.h>
+#include <asm/io.h>
+
+/* This must match data at realmode.S */
+struct real_mode_header {
+ u32 text_start;
+ u32 ro_end;
+ /* SMP trampoline */
+ u32 trampoline_start;
+ u32 trampoline_status;
+ u32 trampoline_header;
+#ifdef CONFIG_X86_64
+ u32 trampoline_pgd;
+#endif
+ /* ACPI S3 wakeup */
+#ifdef CONFIG_ACPI_SLEEP
+ u32 wakeup_start;
+ u32 wakeup_header;
+#endif
+ /* APM/BIOS reboot */
+#ifdef CONFIG_X86_32
+ u32 machine_real_restart_asm;
+#endif
+};
+
+/* This must match data at trampoline_32/64.S */
+struct trampoline_header {
+#ifdef CONFIG_X86_32
+ u32 start;
+ u16 gdt_pad;
+ u16 gdt_limit;
+ u32 gdt_base;
+#else
+ u64 start;
+ u64 efer;
+ u32 cr4;
+#endif
+};
+
+extern struct real_mode_header *real_mode_header;
+extern unsigned char real_mode_blob_end[];
+
+extern unsigned long init_rsp;
+extern unsigned long initial_code;
+extern unsigned long initial_gs;
+
+extern unsigned char real_mode_blob[];
+extern unsigned char real_mode_relocs[];
+
+#ifdef CONFIG_X86_32
+extern unsigned char startup_32_smp[];
+extern unsigned char boot_gdt[];
+#else
+extern unsigned char secondary_startup_64[];
+#endif
+
+extern void __init setup_real_mode(void);
+
+#endif /* _ARCH_X86_REALMODE_H */
#include <asm/processor-flags.h>
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
#define __FIX_EFLAGS (X86_EFLAGS_AC | X86_EFLAGS_OF | \
X86_EFLAGS_DF | X86_EFLAGS_TF | X86_EFLAGS_SF | \
X86_EFLAGS_ZF | X86_EFLAGS_AF | X86_EFLAGS_PF | \
--- /dev/null
+/*
+ * Header file for STMicroelectronics ConneXt (STA2X11) IOHub
+ */
+#ifndef __ASM_STA2X11_H
+#define __ASM_STA2X11_H
+
+#include <linux/pci.h>
+
+/* This needs to be called from the MFD to configure its sub-devices */
+struct sta2x11_instance *sta2x11_get_instance(struct pci_dev *pdev);
+
+#endif /* __ASM_STA2X11_H */
{
struct thread_info *ti = current_thread_info();
ti->status |= TS_RESTORE_SIGMASK;
- set_bit(TIF_SIGPENDING, (unsigned long *)&ti->flags);
+ WARN_ON(!test_bit(TIF_SIGPENDING, (unsigned long *)&ti->flags));
+}
+static inline void clear_restore_sigmask(void)
+{
+ current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+}
+static inline bool test_restore_sigmask(void)
+{
+ return current_thread_info()->status & TS_RESTORE_SIGMASK;
+}
+static inline bool test_and_clear_restore_sigmask(void)
+{
+ struct thread_info *ti = current_thread_info();
+ if (!(ti->status & TS_RESTORE_SIGMASK))
+ return false;
+ ti->status &= ~TS_RESTORE_SIGMASK;
+ return true;
}
static inline bool is_ia32_task(void)
+++ /dev/null
-#ifndef _ASM_X86_TRAMPOLINE_H
-#define _ASM_X86_TRAMPOLINE_H
-
-#ifndef __ASSEMBLY__
-
-#include <linux/types.h>
-#include <asm/io.h>
-
-/*
- * Trampoline 80x86 program as an array. These are in the init rodata
- * segment, but that's okay, because we only care about the relative
- * addresses of the symbols.
- */
-extern const unsigned char x86_trampoline_start [];
-extern const unsigned char x86_trampoline_end [];
-extern unsigned char *x86_trampoline_base;
-
-extern unsigned long init_rsp;
-extern unsigned long initial_code;
-extern unsigned long initial_gs;
-
-extern void __init setup_trampolines(void);
-
-extern const unsigned char trampoline_data[];
-extern const unsigned char trampoline_status[];
-
-#define TRAMPOLINE_SYM(x) \
- ((void *)(x86_trampoline_base + \
- ((const unsigned char *)(x) - x86_trampoline_start)))
-
-/* Address of the SMP trampoline */
-static inline unsigned long trampoline_address(void)
-{
- return virt_to_phys(TRAMPOLINE_SYM(trampoline_data));
-}
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* _ASM_X86_TRAMPOLINE_H */
obj-y += pci-iommu_table.o
obj-y += resource.o
-obj-y += trampoline.o trampoline_$(BITS).o
obj-y += process.o
obj-y += i387.o xsave.o
obj-y += ptrace.o
obj-y += cpu/
obj-y += acpi/
obj-y += reboot.o
-obj-$(CONFIG_X86_32) += reboot_32.o
obj-$(CONFIG_X86_MSR) += msr.o
obj-$(CONFIG_X86_CPUID) += cpuid.o
obj-$(CONFIG_PCI) += early-quirks.o
-subdir- := realmode
-
obj-$(CONFIG_ACPI) += boot.o
-obj-$(CONFIG_ACPI_SLEEP) += sleep.o wakeup_rm.o wakeup_$(BITS).o
+obj-$(CONFIG_ACPI_SLEEP) += sleep.o wakeup_$(BITS).o
ifneq ($(CONFIG_ACPI_PROCESSOR),)
obj-y += cstate.o
endif
-$(obj)/wakeup_rm.o: $(obj)/realmode/wakeup.bin
-
-$(obj)/realmode/wakeup.bin: FORCE
- $(Q)$(MAKE) $(build)=$(obj)/realmode
-
+++ /dev/null
-wakeup.bin
-wakeup.elf
-wakeup.lds
+++ /dev/null
-#
-# arch/x86/kernel/acpi/realmode/Makefile
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License. See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-
-always := wakeup.bin
-targets := wakeup.elf wakeup.lds
-
-wakeup-y += wakeup.o wakemain.o video-mode.o copy.o bioscall.o regs.o
-
-# The link order of the video-*.o modules can matter. In particular,
-# video-vga.o *must* be listed first, followed by video-vesa.o.
-# Hardware-specific drivers should follow in the order they should be
-# probed, and video-bios.o should typically be last.
-wakeup-y += video-vga.o
-wakeup-y += video-vesa.o
-wakeup-y += video-bios.o
-
-targets += $(wakeup-y)
-
-bootsrc := $(src)/../../../boot
-
-# ---------------------------------------------------------------------------
-
-# How to compile the 16-bit code. Note we always compile for -march=i386,
-# that way we can complain to the user if the CPU is insufficient.
-# Compile with _SETUP since this is similar to the boot-time setup code.
-KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D_WAKEUP -D__KERNEL__ \
- -I$(srctree)/$(bootsrc) \
- $(cflags-y) \
- -Wall -Wstrict-prototypes \
- -march=i386 -mregparm=3 \
- -include $(srctree)/$(bootsrc)/code16gcc.h \
- -fno-strict-aliasing -fomit-frame-pointer \
- $(call cc-option, -ffreestanding) \
- $(call cc-option, -fno-toplevel-reorder,\
- $(call cc-option, -fno-unit-at-a-time)) \
- $(call cc-option, -fno-stack-protector) \
- $(call cc-option, -mpreferred-stack-boundary=2)
-KBUILD_CFLAGS += $(call cc-option, -m32)
-KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
-GCOV_PROFILE := n
-
-WAKEUP_OBJS = $(addprefix $(obj)/,$(wakeup-y))
-
-LDFLAGS_wakeup.elf := -T
-
-CPPFLAGS_wakeup.lds += -P -C
-
-$(obj)/wakeup.elf: $(obj)/wakeup.lds $(WAKEUP_OBJS) FORCE
- $(call if_changed,ld)
-
-OBJCOPYFLAGS_wakeup.bin := -O binary
-
-$(obj)/wakeup.bin: $(obj)/wakeup.elf FORCE
- $(call if_changed,objcopy)
+++ /dev/null
-#include "../../../boot/bioscall.S"
+++ /dev/null
-#include "../../../boot/copy.S"
+++ /dev/null
-#include "../../../boot/regs.c"
+++ /dev/null
-#include "../../../boot/video-bios.c"
+++ /dev/null
-#include "../../../boot/video-mode.c"
+++ /dev/null
-#include "../../../boot/video-vesa.c"
+++ /dev/null
-#include "../../../boot/video-vga.c"
+++ /dev/null
-#include "wakeup.h"
-#include "boot.h"
-
-static void udelay(int loops)
-{
- while (loops--)
- io_delay(); /* Approximately 1 us */
-}
-
-static void beep(unsigned int hz)
-{
- u8 enable;
-
- if (!hz) {
- enable = 0x00; /* Turn off speaker */
- } else {
- u16 div = 1193181/hz;
-
- outb(0xb6, 0x43); /* Ctr 2, squarewave, load, binary */
- io_delay();
- outb(div, 0x42); /* LSB of counter */
- io_delay();
- outb(div >> 8, 0x42); /* MSB of counter */
- io_delay();
-
- enable = 0x03; /* Turn on speaker */
- }
- inb(0x61); /* Dummy read of System Control Port B */
- io_delay();
- outb(enable, 0x61); /* Enable timer 2 output to speaker */
- io_delay();
-}
-
-#define DOT_HZ 880
-#define DASH_HZ 587
-#define US_PER_DOT 125000
-
-/* Okay, this is totally silly, but it's kind of fun. */
-static void send_morse(const char *pattern)
-{
- char s;
-
- while ((s = *pattern++)) {
- switch (s) {
- case '.':
- beep(DOT_HZ);
- udelay(US_PER_DOT);
- beep(0);
- udelay(US_PER_DOT);
- break;
- case '-':
- beep(DASH_HZ);
- udelay(US_PER_DOT * 3);
- beep(0);
- udelay(US_PER_DOT);
- break;
- default: /* Assume it's a space */
- udelay(US_PER_DOT * 3);
- break;
- }
- }
-}
-
-void main(void)
-{
- /* Kill machine if structures are wrong */
- if (wakeup_header.real_magic != 0x12345678)
- while (1);
-
- if (wakeup_header.realmode_flags & 4)
- send_morse("...-");
-
- if (wakeup_header.realmode_flags & 1)
- asm volatile("lcallw $0xc000,$3");
-
- if (wakeup_header.realmode_flags & 2) {
- /* Need to call BIOS */
- probe_cards(0);
- set_mode(wakeup_header.video_mode);
- }
-}
+++ /dev/null
-/*
- * ACPI wakeup real mode startup stub
- */
-#include <asm/segment.h>
-#include <asm/msr-index.h>
-#include <asm/page_types.h>
-#include <asm/pgtable_types.h>
-#include <asm/processor-flags.h>
-#include "wakeup.h"
-
- .code16
- .section ".jump", "ax"
- .globl _start
-_start:
- cli
- jmp wakeup_code
-
-/* This should match the structure in wakeup.h */
- .section ".header", "a"
- .globl wakeup_header
-wakeup_header:
-video_mode: .short 0 /* Video mode number */
-pmode_return: .byte 0x66, 0xea /* ljmpl */
- .long 0 /* offset goes here */
- .short __KERNEL_CS
-pmode_cr0: .long 0 /* Saved %cr0 */
-pmode_cr3: .long 0 /* Saved %cr3 */
-pmode_cr4: .long 0 /* Saved %cr4 */
-pmode_efer: .quad 0 /* Saved EFER */
-pmode_gdt: .quad 0
-pmode_misc_en: .quad 0 /* Saved MISC_ENABLE MSR */
-pmode_behavior: .long 0 /* Wakeup behavior flags */
-realmode_flags: .long 0
-real_magic: .long 0
-trampoline_segment: .word 0
-_pad1: .byte 0
-wakeup_jmp: .byte 0xea /* ljmpw */
-wakeup_jmp_off: .word 3f
-wakeup_jmp_seg: .word 0
-wakeup_gdt: .quad 0, 0, 0
-signature: .long WAKEUP_HEADER_SIGNATURE
-
- .text
- .code16
-wakeup_code:
- cld
-
- /* Apparently some dimwit BIOS programmers don't know how to
- program a PM to RM transition, and we might end up here with
- junk in the data segment descriptor registers. The only way
- to repair that is to go into PM and fix it ourselves... */
- movw $16, %cx
- lgdtl %cs:wakeup_gdt
- movl %cr0, %eax
- orb $X86_CR0_PE, %al
- movl %eax, %cr0
- jmp 1f
-1: ljmpw $8, $2f
-2:
- movw %cx, %ds
- movw %cx, %es
- movw %cx, %ss
- movw %cx, %fs
- movw %cx, %gs
-
- andb $~X86_CR0_PE, %al
- movl %eax, %cr0
- jmp wakeup_jmp
-3:
- /* Set up segments */
- movw %cs, %ax
- movw %ax, %ds
- movw %ax, %es
- movw %ax, %ss
- lidtl wakeup_idt
-
- movl $wakeup_stack_end, %esp
-
- /* Clear the EFLAGS */
- pushl $0
- popfl
-
- /* Check header signature... */
- movl signature, %eax
- cmpl $WAKEUP_HEADER_SIGNATURE, %eax
- jne bogus_real_magic
-
- /* Check we really have everything... */
- movl end_signature, %eax
- cmpl $WAKEUP_END_SIGNATURE, %eax
- jne bogus_real_magic
-
- /* Call the C code */
- calll main
-
- /* Restore MISC_ENABLE before entering protected mode, in case
- BIOS decided to clear XD_DISABLE during S3. */
- movl pmode_behavior, %eax
- btl $WAKEUP_BEHAVIOR_RESTORE_MISC_ENABLE, %eax
- jnc 1f
-
- movl pmode_misc_en, %eax
- movl pmode_misc_en + 4, %edx
- movl $MSR_IA32_MISC_ENABLE, %ecx
- wrmsr
-1:
-
- /* Do any other stuff... */
-
-#ifndef CONFIG_64BIT
- /* This could also be done in C code... */
- movl pmode_cr3, %eax
- movl %eax, %cr3
-
- movl pmode_cr4, %ecx
- jecxz 1f
- movl %ecx, %cr4
-1:
- movl pmode_efer, %eax
- movl pmode_efer + 4, %edx
- movl %eax, %ecx
- orl %edx, %ecx
- jz 1f
- movl $MSR_EFER, %ecx
- wrmsr
-1:
-
- lgdtl pmode_gdt
-
- /* This really couldn't... */
- movl pmode_cr0, %eax
- movl %eax, %cr0
- jmp pmode_return
-#else
- pushw $0
- pushw trampoline_segment
- pushw $0
- lret
-#endif
-
-bogus_real_magic:
-1:
- hlt
- jmp 1b
-
- .data
- .balign 8
-
- /* This is the standard real-mode IDT */
-wakeup_idt:
- .word 0xffff /* limit */
- .long 0 /* address */
- .word 0
-
- .globl HEAP, heap_end
-HEAP:
- .long wakeup_heap
-heap_end:
- .long wakeup_stack
-
- .bss
-wakeup_heap:
- .space 2048
-wakeup_stack:
- .space 2048
-wakeup_stack_end:
-
- .section ".signature","a"
-end_signature:
- .long WAKEUP_END_SIGNATURE
+++ /dev/null
-/*
- * Definitions for the wakeup data structure at the head of the
- * wakeup code.
- */
-
-#ifndef ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H
-#define ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H
-
-#ifndef __ASSEMBLY__
-#include <linux/types.h>
-
-/* This must match data at wakeup.S */
-struct wakeup_header {
- u16 video_mode; /* Video mode number */
- u16 _jmp1; /* ljmpl opcode, 32-bit only */
- u32 pmode_entry; /* Protected mode resume point, 32-bit only */
- u16 _jmp2; /* CS value, 32-bit only */
- u32 pmode_cr0; /* Protected mode cr0 */
- u32 pmode_cr3; /* Protected mode cr3 */
- u32 pmode_cr4; /* Protected mode cr4 */
- u32 pmode_efer_low; /* Protected mode EFER */
- u32 pmode_efer_high;
- u64 pmode_gdt;
- u32 pmode_misc_en_low; /* Protected mode MISC_ENABLE */
- u32 pmode_misc_en_high;
- u32 pmode_behavior; /* Wakeup routine behavior flags */
- u32 realmode_flags;
- u32 real_magic;
- u16 trampoline_segment; /* segment with trampoline code, 64-bit only */
- u8 _pad1;
- u8 wakeup_jmp;
- u16 wakeup_jmp_off;
- u16 wakeup_jmp_seg;
- u64 wakeup_gdt[3];
- u32 signature; /* To check we have correct structure */
-} __attribute__((__packed__));
-
-extern struct wakeup_header wakeup_header;
-#endif
-
-#define WAKEUP_HEADER_OFFSET 8
-#define WAKEUP_HEADER_SIGNATURE 0x51ee1111
-#define WAKEUP_END_SIGNATURE 0x65a22c82
-
-/* Wakeup behavior bits */
-#define WAKEUP_BEHAVIOR_RESTORE_MISC_ENABLE 0
-
-#endif /* ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H */
+++ /dev/null
-/*
- * wakeup.ld
- *
- * Linker script for the real-mode wakeup code
- */
-#undef i386
-#include "wakeup.h"
-
-OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
-OUTPUT_ARCH(i386)
-ENTRY(_start)
-
-SECTIONS
-{
- . = 0;
- .jump : {
- *(.jump)
- } = 0x90909090
-
- . = WAKEUP_HEADER_OFFSET;
- .header : {
- *(.header)
- }
-
- . = ALIGN(16);
- .text : {
- *(.text*)
- } = 0x90909090
-
- . = ALIGN(16);
- .rodata : {
- *(.rodata*)
- }
-
- .videocards : {
- video_cards = .;
- *(.videocards)
- video_cards_end = .;
- }
-
- . = ALIGN(16);
- .data : {
- *(.data*)
- }
-
- . = ALIGN(16);
- .bss : {
- __bss_start = .;
- *(.bss)
- __bss_end = .;
- }
-
- .signature : {
- *(.signature)
- }
-
- _end = .;
-
- /DISCARD/ : {
- *(.note*)
- }
-}
#include <asm/desc.h>
#include <asm/pgtable.h>
#include <asm/cacheflush.h>
+#include <asm/realmode.h>
-#include "realmode/wakeup.h"
+#include "../../realmode/rm/wakeup.h"
#include "sleep.h"
unsigned long acpi_realmode_flags;
*/
int acpi_suspend_lowlevel(void)
{
- struct wakeup_header *header;
- /* address in low memory of the wakeup routine. */
- char *acpi_realmode;
+ struct wakeup_header *header =
+ (struct wakeup_header *) __va(real_mode_header->wakeup_header);
- acpi_realmode = TRAMPOLINE_SYM(acpi_wakeup_code);
-
- header = (struct wakeup_header *)(acpi_realmode + WAKEUP_HEADER_OFFSET);
if (header->signature != WAKEUP_HEADER_SIGNATURE) {
printk(KERN_ERR "wakeup header does not match\n");
return -EINVAL;
header->video_mode = saved_video_mode;
- header->wakeup_jmp_seg = acpi_wakeup_address >> 4;
-
- /*
- * Set up the wakeup GDT. We set these up as Big Real Mode,
- * that is, with limits set to 4 GB. At least the Lenovo
- * Thinkpad X61 is known to need this for the video BIOS
- * initialization quirk to work; this is likely to also
- * be the case for other laptops or integrated video devices.
- */
-
- /* GDT[0]: GDT self-pointer */
- header->wakeup_gdt[0] =
- (u64)(sizeof(header->wakeup_gdt) - 1) +
- ((u64)__pa(&header->wakeup_gdt) << 16);
- /* GDT[1]: big real mode-like code segment */
- header->wakeup_gdt[1] =
- GDT_ENTRY(0x809b, acpi_wakeup_address, 0xfffff);
- /* GDT[2]: big real mode-like data segment */
- header->wakeup_gdt[2] =
- GDT_ENTRY(0x8093, acpi_wakeup_address, 0xfffff);
-
#ifndef CONFIG_64BIT
store_gdt((struct desc_ptr *)&header->pmode_gdt);
header->pmode_cr3 = (u32)__pa(&initial_page_table);
saved_magic = 0x12345678;
#else /* CONFIG_64BIT */
- header->trampoline_segment = trampoline_address() >> 4;
#ifdef CONFIG_SMP
stack_start = (unsigned long)temp_stack + sizeof(temp_stack);
early_gdt_descr.address =
* Variables and functions used by the code in sleep.c
*/
-#include <asm/trampoline.h>
#include <linux/linkage.h>
+#include <asm/realmode.h>
extern unsigned long saved_video_mode;
extern long saved_magic;
+++ /dev/null
-/*
- * Wrapper script for the realmode binary as a transport object
- * before copying to low memory.
- */
-#include <asm/page_types.h>
-
- .section ".x86_trampoline","a"
- .balign PAGE_SIZE
- .globl acpi_wakeup_code
-acpi_wakeup_code:
- .incbin "arch/x86/kernel/acpi/realmode/wakeup.bin"
- .size acpi_wakeup_code, .-acpi_wakeup_code
* poller finds an MCE, poll 2x faster. When the poller finds no more
* errors, poll 2x slower (up to check_interval seconds).
*/
-static int check_interval = 5 * 60; /* 5 minutes */
+static unsigned long check_interval = 5 * 60; /* 5 minutes */
-static DEFINE_PER_CPU(int, mce_next_interval); /* in jiffies */
+static DEFINE_PER_CPU(unsigned long, mce_next_interval); /* in jiffies */
static DEFINE_PER_CPU(struct timer_list, mce_timer);
-static void mce_start_timer(unsigned long data)
+static void mce_timer_fn(unsigned long data)
{
- struct timer_list *t = &per_cpu(mce_timer, data);
- int *n;
+ struct timer_list *t = &__get_cpu_var(mce_timer);
+ unsigned long iv;
WARN_ON(smp_processor_id() != data);
* Alert userspace if needed. If we logged an MCE, reduce the
* polling interval, otherwise increase the polling interval.
*/
- n = &__get_cpu_var(mce_next_interval);
+ iv = __this_cpu_read(mce_next_interval);
if (mce_notify_irq())
- *n = max(*n/2, HZ/100);
+ iv = max(iv, (unsigned long) HZ/100);
else
- *n = min(*n*2, (int)round_jiffies_relative(check_interval*HZ));
+ iv = min(iv * 2, round_jiffies_relative(check_interval * HZ));
+ __this_cpu_write(mce_next_interval, iv);
- t->expires = jiffies + *n;
+ t->expires = jiffies + iv;
add_timer_on(t, smp_processor_id());
}
rdmsrl(msrs[i], val);
/* CntP bit set? */
- if (val & BIT(62)) {
- val &= ~BIT(62);
- wrmsrl(msrs[i], val);
+ if (val & BIT_64(62)) {
+ val &= ~BIT_64(62);
+ wrmsrl(msrs[i], val);
}
}
static void __mcheck_cpu_init_timer(void)
{
struct timer_list *t = &__get_cpu_var(mce_timer);
- int *n = &__get_cpu_var(mce_next_interval);
+ unsigned long iv = __this_cpu_read(mce_next_interval);
- setup_timer(t, mce_start_timer, smp_processor_id());
+ setup_timer(t, mce_timer_fn, smp_processor_id());
if (mce_ignore_ce)
return;
- *n = check_interval * HZ;
- if (!*n)
+ __this_cpu_write(mce_next_interval, iv);
+ if (!iv)
return;
- t->expires = round_jiffies(jiffies + *n);
+ t->expires = round_jiffies(jiffies + iv);
add_timer_on(t, smp_processor_id());
}
case CPU_DOWN_FAILED_FROZEN:
if (!mce_ignore_ce && check_interval) {
t->expires = round_jiffies(jiffies +
- __get_cpu_var(mce_next_interval));
+ per_cpu(mce_next_interval, cpu));
add_timer_on(t, cpu);
}
smp_call_function_single(cpu, mce_reenable_cpu, &action, 1);
if (align > max_align)
align = max_align;
- sizek = 1 << align;
+ sizek = 1UL << align;
if (debug_print) {
char start_factor = 'K', size_factor = 'K';
unsigned long start_base, size_base;
int x = e820x->nr_map;
if (x >= ARRAY_SIZE(e820x->map)) {
- printk(KERN_ERR "Ooops! Too many entries in the memory map!\n");
+ printk(KERN_ERR "e820: too many entries; ignoring [mem %#010llx-%#010llx]\n",
+ (unsigned long long) start,
+ (unsigned long long) (start + size - 1));
return;
}
switch (type) {
case E820_RAM:
case E820_RESERVED_KERN:
- printk(KERN_CONT "(usable)");
+ printk(KERN_CONT "usable");
break;
case E820_RESERVED:
- printk(KERN_CONT "(reserved)");
+ printk(KERN_CONT "reserved");
break;
case E820_ACPI:
- printk(KERN_CONT "(ACPI data)");
+ printk(KERN_CONT "ACPI data");
break;
case E820_NVS:
- printk(KERN_CONT "(ACPI NVS)");
+ printk(KERN_CONT "ACPI NVS");
break;
case E820_UNUSABLE:
- printk(KERN_CONT "(unusable)");
+ printk(KERN_CONT "unusable");
break;
default:
printk(KERN_CONT "type %u", type);
int i;
for (i = 0; i < e820.nr_map; i++) {
- printk(KERN_INFO " %s: %016Lx - %016Lx ", who,
+ printk(KERN_INFO "%s: [mem %#018Lx-%#018Lx] ", who,
(unsigned long long) e820.map[i].addr,
(unsigned long long)
- (e820.map[i].addr + e820.map[i].size));
+ (e820.map[i].addr + e820.map[i].size - 1));
e820_print_type(e820.map[i].type);
printk(KERN_CONT "\n");
}
size = ULLONG_MAX - start;
end = start + size;
- printk(KERN_DEBUG "e820 update range: %016Lx - %016Lx ",
- (unsigned long long) start,
- (unsigned long long) end);
+ printk(KERN_DEBUG "e820: update [mem %#010Lx-%#010Lx] ",
+ (unsigned long long) start, (unsigned long long) (end - 1));
e820_print_type(old_type);
printk(KERN_CONT " ==> ");
e820_print_type(new_type);
size = ULLONG_MAX - start;
end = start + size;
- printk(KERN_DEBUG "e820 remove range: %016Lx - %016Lx ",
- (unsigned long long) start,
- (unsigned long long) end);
+ printk(KERN_DEBUG "e820: remove [mem %#010Lx-%#010Lx] ",
+ (unsigned long long) start, (unsigned long long) (end - 1));
if (checktype)
e820_print_type(old_type);
printk(KERN_CONT "\n");
if (sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &nr_map))
return;
e820.nr_map = nr_map;
- printk(KERN_INFO "modified physical RAM map:\n");
+ printk(KERN_INFO "e820: modified physical RAM map:\n");
e820_print_map("modified");
}
static void __init update_e820_saved(void)
if (!found) {
gapstart = (max_pfn << PAGE_SHIFT) + 1024*1024;
printk(KERN_ERR
- "PCI: Warning: Cannot find a gap in the 32bit address range\n"
- "PCI: Unassigned devices with 32bit resource registers may break!\n");
+ "e820: cannot find a gap in the 32bit address range\n"
+ "e820: PCI devices with unassigned 32bit BARs may break!\n");
}
#endif
pci_mem_start = gapstart;
printk(KERN_INFO
- "Allocating PCI resources starting at %lx (gap: %lx:%lx)\n",
- pci_mem_start, gapstart, gapsize);
+ "e820: [mem %#010lx-%#010lx] available for PCI devices\n",
+ gapstart, gapstart + gapsize - 1);
}
/**
extmap = (struct e820entry *)(sdata->data);
__append_e820_map(extmap, entries);
sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
- printk(KERN_INFO "extended physical RAM map:\n");
+ printk(KERN_INFO "e820: extended physical RAM map:\n");
e820_print_map("extended");
}
addr = __memblock_alloc_base(size, align, MEMBLOCK_ALLOC_ACCESSIBLE);
if (addr) {
e820_update_range_saved(addr, size, E820_RAM, E820_RESERVED);
- printk(KERN_INFO "update e820_saved for early_reserve_e820\n");
+ printk(KERN_INFO "e820: update e820_saved for early_reserve_e820\n");
update_e820_saved();
}
if (last_pfn > max_arch_pfn)
last_pfn = max_arch_pfn;
- printk(KERN_INFO "last_pfn = %#lx max_arch_pfn = %#lx\n",
+ printk(KERN_INFO "e820: last_pfn = %#lx max_arch_pfn = %#lx\n",
last_pfn, max_arch_pfn);
return last_pfn;
}
early_panic("Invalid user supplied memory map");
e820.nr_map = nr;
- printk(KERN_INFO "user-defined physical RAM map:\n");
+ printk(KERN_INFO "e820: user-defined physical RAM map:\n");
e820_print_map("user");
}
}
end = MAX_RESOURCE_SIZE;
if (start >= end)
continue;
- printk(KERN_DEBUG "reserve RAM buffer: %016llx - %016llx ",
- start, end);
+ printk(KERN_DEBUG
+ "e820: reserve RAM buffer [mem %#010llx-%#010llx]\n",
+ start, end);
reserve_region_with_split(&iomem_resource, start, end,
"RAM buffer");
}
who = x86_init.resources.memory_setup();
memcpy(&e820_saved, &e820, sizeof(struct e820map));
- printk(KERN_INFO "BIOS-provided physical RAM map:\n");
+ printk(KERN_INFO "e820: BIOS-provided physical RAM map:\n");
e820_print_map(who);
}
preempt_stop(CLBR_ANY)
ret_from_intr:
GET_THREAD_INFO(%ebp)
-resume_userspace_sig:
#ifdef CONFIG_VM86
movl PT_EFLAGS(%esp), %eax # mix EFLAGS and CS
movb PT_CS(%esp), %al
# vm86-space
TRACE_IRQS_ON
ENABLE_INTERRUPTS(CLBR_NONE)
+ movb PT_CS(%esp), %bl
+ andb $SEGMENT_RPL_MASK, %bl
+ cmpb $USER_RPL, %bl
+ jb resume_kernel
xorl %edx, %edx
call do_notify_resume
- jmp resume_userspace_sig
+ jmp resume_userspace
ALIGN
work_notifysig_v86:
#endif
TRACE_IRQS_ON
ENABLE_INTERRUPTS(CLBR_NONE)
+ movb PT_CS(%esp), %bl
+ andb $SEGMENT_RPL_MASK, %bl
+ cmpb $USER_RPL, %bl
+ jb resume_kernel
xorl %edx, %edx
call do_notify_resume
- jmp resume_userspace_sig
+ jmp resume_userspace
END(work_pending)
# perform syscall exit tracing
#include <asm/sections.h>
#include <asm/e820.h>
#include <asm/page.h>
-#include <asm/trampoline.h>
#include <asm/apic.h>
#include <asm/io_apic.h>
#include <asm/bios_ebda.h>
#include <asm/sections.h>
#include <asm/kdebug.h>
#include <asm/e820.h>
-#include <asm/trampoline.h>
#include <asm/bios_ebda.h>
static void __init zap_identity_mappings(void)
* If cpu hotplug is not supported then this code can go in init section
* which will be freed later
*/
-
__CPUINIT
-
-#ifdef CONFIG_SMP
ENTRY(startup_32_smp)
cld
movl $(__BOOT_DS),%eax
movl pa(stack_start),%ecx
movl %eax,%ss
leal -__PAGE_OFFSET(%ecx),%esp
-#endif /* CONFIG_SMP */
+
default_entry:
/*
/* Fixup phys_base */
addq %rbp, phys_base(%rip)
- /* Fixup trampoline */
- addq %rbp, trampoline_level4_pgt + 0(%rip)
- addq %rbp, trampoline_level4_pgt + (511*8)(%rip)
-
/* Due to ENTRY(), sometimes the empty space gets filled with
* zeros. Better take a jmp than relying on empty space being
* filled with 0x90 (nop)
else
pr_warn("HPET initial state will not be saved\n");
cfg &= ~(HPET_CFG_ENABLE | HPET_CFG_LEGACY);
- hpet_writel(cfg, HPET_Tn_CFG(i));
+ hpet_writel(cfg, HPET_CFG);
if (cfg)
pr_warn("HPET: Unrecognized bits %#x set in global cfg\n",
cfg);
#include <asm/proto.h>
#include <asm/bios_ebda.h>
#include <asm/e820.h>
-#include <asm/trampoline.h>
#include <asm/setup.h>
#include <asm/smp.h>
struct mpf_intel *mpf;
unsigned long mem;
- apic_printk(APIC_VERBOSE, "Scan SMP from %p for %ld bytes.\n",
- bp, length);
+ apic_printk(APIC_VERBOSE, "Scan for SMP in [mem %#010lx-%#010lx]\n",
+ base, base + length - 1);
BUILD_BUG_ON(sizeof(*mpf) != 16);
while (length > 0) {
#endif
mpf_found = mpf;
- printk(KERN_INFO "found SMP MP-table at [%p] %llx\n",
- mpf, (u64)virt_to_phys(mpf));
+ printk(KERN_INFO "found SMP MP-table at [mem %#010llx-%#010llx] mapped at [%p]\n",
+ (unsigned long long) virt_to_phys(mpf),
+ (unsigned long long) virt_to_phys(mpf) +
+ sizeof(*mpf) - 1, mpf);
mem = virt_to_phys(mpf);
memblock_reserve(mem, sizeof(*mpf));
#ifdef CONFIG_X86_32
# include <linux/ctype.h>
# include <linux/mc146818rtc.h>
+# include <asm/realmode.h>
#else
# include <asm/x86_init.h>
#endif
return 0;
}
-extern const unsigned char machine_real_restart_asm[];
-extern const u64 machine_real_restart_gdt[3];
-
void machine_real_restart(unsigned int type)
{
- void *restart_va;
- unsigned long restart_pa;
- void (*restart_lowmem)(unsigned int);
- u64 *lowmem_gdt;
+ void (*restart_lowmem)(unsigned int) = (void (*)(unsigned int))
+ real_mode_header->machine_real_restart_asm;
local_irq_disable();
* too. */
*((unsigned short *)0x472) = reboot_mode;
- /* Patch the GDT in the low memory trampoline */
- lowmem_gdt = TRAMPOLINE_SYM(machine_real_restart_gdt);
-
- restart_va = TRAMPOLINE_SYM(machine_real_restart_asm);
- restart_pa = virt_to_phys(restart_va);
- restart_lowmem = (void (*)(unsigned int))restart_pa;
-
- /* GDT[0]: GDT self-pointer */
- lowmem_gdt[0] =
- (u64)(sizeof(machine_real_restart_gdt) - 1) +
- ((u64)virt_to_phys(lowmem_gdt) << 16);
- /* GDT[1]: 64K real mode code segment */
- lowmem_gdt[1] =
- GDT_ENTRY(0x009b, restart_pa, 0xffff);
-
/* Jump to the identity-mapped low memory code */
restart_lowmem(type);
}
+++ /dev/null
-#include <linux/linkage.h>
-#include <linux/init.h>
-#include <asm/segment.h>
-#include <asm/page_types.h>
-
-/*
- * The following code and data reboots the machine by switching to real
- * mode and jumping to the BIOS reset entry point, as if the CPU has
- * really been reset. The previous version asked the keyboard
- * controller to pulse the CPU reset line, which is more thorough, but
- * doesn't work with at least one type of 486 motherboard. It is easy
- * to stop this code working; hence the copious comments.
- *
- * This code is called with the restart type (0 = BIOS, 1 = APM) in %eax.
- */
- .section ".x86_trampoline","a"
- .balign 16
- .code32
-ENTRY(machine_real_restart_asm)
-r_base = .
- /* Get our own relocated address */
- call 1f
-1: popl %ebx
- subl $(1b - r_base), %ebx
-
- /* Compute the equivalent real-mode segment */
- movl %ebx, %ecx
- shrl $4, %ecx
-
- /* Patch post-real-mode segment jump */
- movw (dispatch_table - r_base)(%ebx,%eax,2),%ax
- movw %ax, (101f - r_base)(%ebx)
- movw %cx, (102f - r_base)(%ebx)
-
- /* Set up the IDT for real mode. */
- lidtl (machine_real_restart_idt - r_base)(%ebx)
-
- /*
- * Set up a GDT from which we can load segment descriptors for real
- * mode. The GDT is not used in real mode; it is just needed here to
- * prepare the descriptors.
- */
- lgdtl (machine_real_restart_gdt - r_base)(%ebx)
-
- /*
- * Load the data segment registers with 16-bit compatible values
- */
- movl $16, %ecx
- movl %ecx, %ds
- movl %ecx, %es
- movl %ecx, %fs
- movl %ecx, %gs
- movl %ecx, %ss
- ljmpl $8, $1f - r_base
-
-/*
- * This is 16-bit protected mode code to disable paging and the cache,
- * switch to real mode and jump to the BIOS reset code.
- *
- * The instruction that switches to real mode by writing to CR0 must be
- * followed immediately by a far jump instruction, which set CS to a
- * valid value for real mode, and flushes the prefetch queue to avoid
- * running instructions that have already been decoded in protected
- * mode.
- *
- * Clears all the flags except ET, especially PG (paging), PE
- * (protected-mode enable) and TS (task switch for coprocessor state
- * save). Flushes the TLB after paging has been disabled. Sets CD and
- * NW, to disable the cache on a 486, and invalidates the cache. This
- * is more like the state of a 486 after reset. I don't know if
- * something else should be done for other chips.
- *
- * More could be done here to set up the registers as if a CPU reset had
- * occurred; hopefully real BIOSs don't assume much. This is not the
- * actual BIOS entry point, anyway (that is at 0xfffffff0).
- *
- * Most of this work is probably excessive, but it is what is tested.
- */
- .code16
-1:
- xorl %ecx, %ecx
- movl %cr0, %eax
- andl $0x00000011, %eax
- orl $0x60000000, %eax
- movl %eax, %cr0
- movl %ecx, %cr3
- movl %cr0, %edx
- andl $0x60000000, %edx /* If no cache bits -> no wbinvd */
- jz 2f
- wbinvd
-2:
- andb $0x10, %al
- movl %eax, %cr0
- .byte 0xea /* ljmpw */
-101: .word 0 /* Offset */
-102: .word 0 /* Segment */
-
-bios:
- ljmpw $0xf000, $0xfff0
-
-apm:
- movw $0x1000, %ax
- movw %ax, %ss
- movw $0xf000, %sp
- movw $0x5307, %ax
- movw $0x0001, %bx
- movw $0x0003, %cx
- int $0x15
-
-END(machine_real_restart_asm)
-
- .balign 16
- /* These must match <asm/reboot.h */
-dispatch_table:
- .word bios - r_base
- .word apm - r_base
-END(dispatch_table)
-
- .balign 16
-machine_real_restart_idt:
- .word 0xffff /* Length - real mode default value */
- .long 0 /* Base - real mode default value */
-END(machine_real_restart_idt)
-
- .balign 16
-ENTRY(machine_real_restart_gdt)
- .quad 0 /* Self-pointer, filled in by PM code */
- .quad 0 /* 16-bit code segment, filled in by PM code */
- /*
- * 16-bit data segment with the selector value 16 = 0x10 and
- * base value 0x100; since this is consistent with real mode
- * semantics we don't have to reload the segments once CR0.PE = 0.
- */
- .quad GDT_ENTRY(0x0093, 0x100, 0xffff)
-END(machine_real_restart_gdt)
#include <asm/mtrr.h>
#include <asm/apic.h>
-#include <asm/trampoline.h>
+#include <asm/realmode.h>
#include <asm/e820.h>
#include <asm/mpspec.h>
#include <asm/setup.h>
memblock_reserve(ramdisk_here, area_size);
initrd_start = ramdisk_here + PAGE_OFFSET;
initrd_end = initrd_start + ramdisk_size;
- printk(KERN_INFO "Allocated new RAMDISK: %08llx - %08llx\n",
- ramdisk_here, ramdisk_here + ramdisk_size);
+ printk(KERN_INFO "Allocated new RAMDISK: [mem %#010llx-%#010llx]\n",
+ ramdisk_here, ramdisk_here + ramdisk_size - 1);
q = (char *)initrd_start;
/* high pages is not converted by early_res_to_bootmem */
ramdisk_image = boot_params.hdr.ramdisk_image;
ramdisk_size = boot_params.hdr.ramdisk_size;
- printk(KERN_INFO "Move RAMDISK from %016llx - %016llx to"
- " %08llx - %08llx\n",
+ printk(KERN_INFO "Move RAMDISK from [mem %#010llx-%#010llx] to"
+ " [mem %#010llx-%#010llx]\n",
ramdisk_image, ramdisk_image + ramdisk_size - 1,
ramdisk_here, ramdisk_here + ramdisk_size - 1);
}
ramdisk_size, end_of_lowmem>>1);
}
- printk(KERN_INFO "RAMDISK: %08llx - %08llx\n", ramdisk_image,
- ramdisk_end);
+ printk(KERN_INFO "RAMDISK: [mem %#010llx-%#010llx]\n", ramdisk_image,
+ ramdisk_end - 1);
if (ramdisk_end <= end_of_lowmem) {
setup_bios_corruption_check();
#endif
- printk(KERN_DEBUG "initial memory mapped : 0 - %08lx\n",
- max_pfn_mapped<<PAGE_SHIFT);
+ printk(KERN_DEBUG "initial memory mapped: [mem 0x00000000-%#010lx]\n",
+ (max_pfn_mapped<<PAGE_SHIFT) - 1);
- setup_trampolines();
+ setup_real_mode();
init_gbpages();
if (boot_cpu_data.cpuid_level >= 0) {
/* A CPU has %cr4 if and only if it has CPUID */
mmu_cr4_features = read_cr4();
+ if (trampoline_cr4_features)
+ *trampoline_cr4_features = mmu_cr4_features;
}
#ifdef CONFIG_X86_32
sizeof(frame->extramask))))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->sc, &ax))
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
struct pt_regs *regs)
{
int usig = signr_convert(sig);
- sigset_t *set = ¤t->blocked;
- int ret;
-
- if (current_thread_info()->status & TS_RESTORE_SIGMASK)
- set = ¤t->saved_sigmask;
+ sigset_t *set = sigmask_to_save();
/* Set up the stack frame */
if (is_ia32) {
if (ka->sa.sa_flags & SA_SIGINFO)
- ret = ia32_setup_rt_frame(usig, ka, info, set, regs);
+ return ia32_setup_rt_frame(usig, ka, info, set, regs);
else
- ret = ia32_setup_frame(usig, ka, set, regs);
+ return ia32_setup_frame(usig, ka, set, regs);
#ifdef CONFIG_X86_X32_ABI
} else if (is_x32) {
- ret = x32_setup_rt_frame(usig, ka, info,
+ return x32_setup_rt_frame(usig, ka, info,
(compat_sigset_t *)set, regs);
#endif
} else {
- ret = __setup_rt_frame(sig, ka, info, set, regs);
- }
-
- if (ret) {
- force_sigsegv(sig, current);
- return -EFAULT;
+ return __setup_rt_frame(sig, ka, info, set, regs);
}
-
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
- return ret;
}
-static int
+static void
handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
struct pt_regs *regs)
{
- int ret;
-
/* Are we from a system call? */
if (syscall_get_nr(current, regs) >= 0) {
/* If so, check system call restarting.. */
likely(test_and_clear_thread_flag(TIF_FORCED_TF)))
regs->flags &= ~X86_EFLAGS_TF;
- ret = setup_rt_frame(sig, ka, info, regs);
-
- if (ret)
- return ret;
+ if (setup_rt_frame(sig, ka, info, regs) < 0) {
+ force_sigsegv(sig, current);
+ return;
+ }
/*
* Clear the direction flag as per the ABI for function entry.
*/
regs->flags &= ~X86_EFLAGS_TF;
- block_sigmask(ka, sig);
-
- tracehook_signal_handler(sig, info, ka, regs,
- test_thread_flag(TIF_SINGLESTEP));
-
- return 0;
+ signal_delivered(sig, info, ka, regs,
+ test_thread_flag(TIF_SINGLESTEP));
}
#ifdef CONFIG_X86_32
siginfo_t info;
int signr;
- /*
- * We want the common case to go fast, which is why we may in certain
- * cases get here from kernel mode. Just return without doing anything
- * if so.
- * X86_32: vm86 regs switched out by assembly code before reaching
- * here, so testing against kernel CS suffices.
- */
- if (!user_mode(regs))
- return;
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
/* Whee! Actually deliver the signal. */
* If there's no signal to deliver, we just put the saved sigmask
* back.
*/
- if (current_thread_info()->status & TS_RESTORE_SIGMASK) {
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
- set_current_blocked(¤t->saved_sigmask);
- }
+ restore_saved_sigmask();
}
/*
if (thread_info_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
if (thread_info_flags & _TIF_USER_RETURN_NOTIFY)
fire_user_return_notifiers();
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
#include <asm/nmi.h>
#include <asm/irq.h>
#include <asm/idle.h>
-#include <asm/trampoline.h>
+#include <asm/realmode.h>
#include <asm/cpu.h>
#include <asm/numa.h>
#include <asm/pgtable.h>
#include <asm/smpboot_hooks.h>
#include <asm/i8259.h>
+#include <asm/realmode.h>
+
/* State of each CPU */
DEFINE_PER_CPU(int, cpu_state) = { 0 };
*/
static int __cpuinit do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
{
+ volatile u32 *trampoline_status =
+ (volatile u32 *) __va(real_mode_header->trampoline_status);
+ /* start_ip had better be page-aligned! */
+ unsigned long start_ip = real_mode_header->trampoline_start;
+
unsigned long boot_error = 0;
- unsigned long start_ip;
int timeout;
alternatives_smp_switch(1);
initial_code = (unsigned long)start_secondary;
stack_start = idle->thread.sp;
- /* start_ip had better be page-aligned! */
- start_ip = trampoline_address();
-
/* So we see what's up */
announce_cpu(cpu, apicid);
pr_debug("CPU%d: has booted.\n", cpu);
} else {
boot_error = 1;
- if (*(volatile u32 *)TRAMPOLINE_SYM(trampoline_status)
- == 0xA5A5A5A5)
+ if (*trampoline_status == 0xA5A5A5A5)
/* trampoline started but...? */
pr_err("CPU%d: Stuck ??\n", cpu);
else
}
/* mark "stuck" area as not stuck */
- *(volatile u32 *)TRAMPOLINE_SYM(trampoline_status) = 0;
+ *trampoline_status = 0;
if (get_uv_system_type() != UV_NON_UNIQUE_APIC) {
/*
#include <linux/mm.h>
#include <linux/tboot.h>
-#include <asm/trampoline.h>
+#include <asm/realmode.h>
#include <asm/processor.h>
#include <asm/bootparam.h>
#include <asm/pgtable.h>
#include <asm/e820.h>
#include <asm/io.h>
-#include "acpi/realmode/wakeup.h"
+#include "../realmode/rm/wakeup.h"
/* Global pointer to shared data; NULL means no measured launch. */
struct tboot *tboot __read_mostly;
add_mac_region(e820.map[i].addr, e820.map[i].size);
}
- tboot->acpi_sinfo.kernel_s3_resume_vector = acpi_wakeup_address;
+ tboot->acpi_sinfo.kernel_s3_resume_vector =
+ real_mode_header->wakeup_start;
return 0;
}
+++ /dev/null
-#include <linux/io.h>
-#include <linux/memblock.h>
-
-#include <asm/trampoline.h>
-#include <asm/cacheflush.h>
-#include <asm/pgtable.h>
-
-unsigned char *x86_trampoline_base;
-
-void __init setup_trampolines(void)
-{
- phys_addr_t mem;
- size_t size = PAGE_ALIGN(x86_trampoline_end - x86_trampoline_start);
-
- /* Has to be in very low memory so we can execute real-mode AP code. */
- mem = memblock_find_in_range(0, 1<<20, size, PAGE_SIZE);
- if (!mem)
- panic("Cannot allocate trampoline\n");
-
- x86_trampoline_base = __va(mem);
- memblock_reserve(mem, size);
-
- printk(KERN_DEBUG "Base memory trampoline at [%p] %llx size %zu\n",
- x86_trampoline_base, (unsigned long long)mem, size);
-
- memcpy(x86_trampoline_base, x86_trampoline_start, size);
-}
-
-/*
- * setup_trampolines() gets called very early, to guarantee the
- * availability of low memory. This is before the proper kernel page
- * tables are set up, so we cannot set page permissions in that
- * function. Thus, we use an arch_initcall instead.
- */
-static int __init configure_trampolines(void)
-{
- size_t size = PAGE_ALIGN(x86_trampoline_end - x86_trampoline_start);
-
- set_memory_x((unsigned long)x86_trampoline_base, size >> PAGE_SHIFT);
- return 0;
-}
-arch_initcall(configure_trampolines);
+++ /dev/null
-/*
- *
- * Trampoline.S Derived from Setup.S by Linus Torvalds
- *
- * 4 Jan 1997 Michael Chastain: changed to gnu as.
- *
- * This is only used for booting secondary CPUs in SMP machine
- *
- * Entry: CS:IP point to the start of our code, we are
- * in real mode with no stack, but the rest of the
- * trampoline page to make our stack and everything else
- * is a mystery.
- *
- * We jump into arch/x86/kernel/head_32.S.
- *
- * On entry to trampoline_data, the processor is in real mode
- * with 16-bit addressing and 16-bit data. CS has some value
- * and IP is zero. Thus, data addresses need to be absolute
- * (no relocation) and are taken with regard to r_base.
- *
- * If you work on this file, check the object module with
- * objdump --reloc to make sure there are no relocation
- * entries except for:
- *
- * TYPE VALUE
- * R_386_32 startup_32_smp
- * R_386_32 boot_gdt
- */
-
-#include <linux/linkage.h>
-#include <linux/init.h>
-#include <asm/segment.h>
-#include <asm/page_types.h>
-
-#ifdef CONFIG_SMP
-
- .section ".x86_trampoline","a"
- .balign PAGE_SIZE
- .code16
-
-ENTRY(trampoline_data)
-r_base = .
- wbinvd # Needed for NUMA-Q should be harmless for others
- mov %cs, %ax # Code and data in the same place
- mov %ax, %ds
-
- cli # We should be safe anyway
-
- movl $0xA5A5A5A5, trampoline_status - r_base
- # write marker for master knows we're running
-
- /* GDT tables in non default location kernel can be beyond 16MB and
- * lgdt will not be able to load the address as in real mode default
- * operand size is 16bit. Use lgdtl instead to force operand size
- * to 32 bit.
- */
-
- lidtl boot_idt_descr - r_base # load idt with 0, 0
- lgdtl boot_gdt_descr - r_base # load gdt with whatever is appropriate
-
- xor %ax, %ax
- inc %ax # protected mode (PE) bit
- lmsw %ax # into protected mode
- # flush prefetch and jump to startup_32_smp in arch/i386/kernel/head.S
- ljmpl $__BOOT_CS, $(startup_32_smp-__PAGE_OFFSET)
-
- # These need to be in the same 64K segment as the above;
- # hence we don't use the boot_gdt_descr defined in head.S
-boot_gdt_descr:
- .word __BOOT_DS + 7 # gdt limit
- .long boot_gdt - __PAGE_OFFSET # gdt base
-
-boot_idt_descr:
- .word 0 # idt limit = 0
- .long 0 # idt base = 0L
-
-ENTRY(trampoline_status)
- .long 0
-
-.globl trampoline_end
-trampoline_end:
-
-#endif /* CONFIG_SMP */
+++ /dev/null
-/*
- *
- * Trampoline.S Derived from Setup.S by Linus Torvalds
- *
- * 4 Jan 1997 Michael Chastain: changed to gnu as.
- * 15 Sept 2005 Eric Biederman: 64bit PIC support
- *
- * Entry: CS:IP point to the start of our code, we are
- * in real mode with no stack, but the rest of the
- * trampoline page to make our stack and everything else
- * is a mystery.
- *
- * On entry to trampoline_data, the processor is in real mode
- * with 16-bit addressing and 16-bit data. CS has some value
- * and IP is zero. Thus, data addresses need to be absolute
- * (no relocation) and are taken with regard to r_base.
- *
- * With the addition of trampoline_level4_pgt this code can
- * now enter a 64bit kernel that lives at arbitrary 64bit
- * physical addresses.
- *
- * If you work on this file, check the object module with objdump
- * --full-contents --reloc to make sure there are no relocation
- * entries.
- */
-
-#include <linux/linkage.h>
-#include <linux/init.h>
-#include <asm/pgtable_types.h>
-#include <asm/page_types.h>
-#include <asm/msr.h>
-#include <asm/segment.h>
-#include <asm/processor-flags.h>
-
- .section ".x86_trampoline","a"
- .balign PAGE_SIZE
- .code16
-
-ENTRY(trampoline_data)
-r_base = .
- cli # We should be safe anyway
- wbinvd
- mov %cs, %ax # Code and data in the same place
- mov %ax, %ds
- mov %ax, %es
- mov %ax, %ss
-
-
- movl $0xA5A5A5A5, trampoline_status - r_base
- # write marker for master knows we're running
-
- # Setup stack
- movw $(trampoline_stack_end - r_base), %sp
-
- call verify_cpu # Verify the cpu supports long mode
- testl %eax, %eax # Check for return code
- jnz no_longmode
-
- mov %cs, %ax
- movzx %ax, %esi # Find the 32bit trampoline location
- shll $4, %esi
-
- # Fixup the absolute vectors
- leal (startup_32 - r_base)(%esi), %eax
- movl %eax, startup_32_vector - r_base
- leal (startup_64 - r_base)(%esi), %eax
- movl %eax, startup_64_vector - r_base
- leal (tgdt - r_base)(%esi), %eax
- movl %eax, (tgdt + 2 - r_base)
-
- /*
- * GDT tables in non default location kernel can be beyond 16MB and
- * lgdt will not be able to load the address as in real mode default
- * operand size is 16bit. Use lgdtl instead to force operand size
- * to 32 bit.
- */
-
- lidtl tidt - r_base # load idt with 0, 0
- lgdtl tgdt - r_base # load gdt with whatever is appropriate
-
- mov $X86_CR0_PE, %ax # protected mode (PE) bit
- lmsw %ax # into protected mode
-
- # flush prefetch and jump to startup_32
- ljmpl *(startup_32_vector - r_base)
-
- .code32
- .balign 4
-startup_32:
- movl $__KERNEL_DS, %eax # Initialize the %ds segment register
- movl %eax, %ds
-
- movl $X86_CR4_PAE, %eax
- movl %eax, %cr4 # Enable PAE mode
-
- # Setup trampoline 4 level pagetables
- leal (trampoline_level4_pgt - r_base)(%esi), %eax
- movl %eax, %cr3
-
- movl $MSR_EFER, %ecx
- movl $(1 << _EFER_LME), %eax # Enable Long Mode
- xorl %edx, %edx
- wrmsr
-
- # Enable paging and in turn activate Long Mode
- # Enable protected mode
- movl $(X86_CR0_PG | X86_CR0_PE), %eax
- movl %eax, %cr0
-
- /*
- * At this point we're in long mode but in 32bit compatibility mode
- * with EFER.LME = 1, CS.L = 0, CS.D = 1 (and in turn
- * EFER.LMA = 1). Now we want to jump in 64bit mode, to do that we use
- * the new gdt/idt that has __KERNEL_CS with CS.L = 1.
- */
- ljmp *(startup_64_vector - r_base)(%esi)
-
- .code64
- .balign 4
-startup_64:
- # Now jump into the kernel using virtual addresses
- movq $secondary_startup_64, %rax
- jmp *%rax
-
- .code16
-no_longmode:
- hlt
- jmp no_longmode
-#include "verify_cpu.S"
-
- .balign 4
- # Careful these need to be in the same 64K segment as the above;
-tidt:
- .word 0 # idt limit = 0
- .word 0, 0 # idt base = 0L
-
- # Duplicate the global descriptor table
- # so the kernel can live anywhere
- .balign 4
-tgdt:
- .short tgdt_end - tgdt # gdt limit
- .long tgdt - r_base
- .short 0
- .quad 0x00cf9b000000ffff # __KERNEL32_CS
- .quad 0x00af9b000000ffff # __KERNEL_CS
- .quad 0x00cf93000000ffff # __KERNEL_DS
-tgdt_end:
-
- .balign 4
-startup_32_vector:
- .long startup_32 - r_base
- .word __KERNEL32_CS, 0
-
- .balign 4
-startup_64_vector:
- .long startup_64 - r_base
- .word __KERNEL_CS, 0
-
- .balign 4
-ENTRY(trampoline_status)
- .long 0
-
-trampoline_stack:
- .org 0x1000
-trampoline_stack_end:
-ENTRY(trampoline_level4_pgt)
- .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
- .fill 510,8,0
- .quad level3_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE
-
-ENTRY(trampoline_end)
INIT_DATA_SECTION(16)
- /*
- * Code and data for a variety of lowlevel trampolines, to be
- * copied into base memory (< 1 MiB) during initialization.
- * Since it is copied early, the main copy can be discarded
- * afterwards.
- */
- .x86_trampoline : AT(ADDR(.x86_trampoline) - LOAD_OFFSET) {
- x86_trampoline_start = .;
- *(.x86_trampoline)
- x86_trampoline_end = .;
- }
-
.x86_cpu_dev.init : AT(ADDR(.x86_cpu_dev.init) - LOAD_OFFSET) {
__x86_cpu_dev_start = .;
*(.x86_cpu_dev.init)
*gfnp = gfn;
kvm_release_pfn_clean(pfn);
pfn &= ~mask;
- if (!get_page_unless_zero(pfn_to_page(pfn)))
- BUG();
+ kvm_get_pfn(pfn);
*pfnp = pfn;
}
}
pgt_buf_end = pgt_buf_start;
pgt_buf_top = pgt_buf_start + (tables >> PAGE_SHIFT);
- printk(KERN_DEBUG "kernel direct mapping tables up to %lx @ %lx-%lx\n",
- end, pgt_buf_start << PAGE_SHIFT, pgt_buf_top << PAGE_SHIFT);
+ printk(KERN_DEBUG "kernel direct mapping tables up to %#lx @ [mem %#010lx-%#010lx]\n",
+ end - 1, pgt_buf_start << PAGE_SHIFT,
+ (pgt_buf_top << PAGE_SHIFT) - 1);
}
void __init native_pagetable_reserve(u64 start, u64 end)
int nr_range, i;
int use_pse, use_gbpages;
- printk(KERN_INFO "init_memory_mapping: %016lx-%016lx\n", start, end);
+ printk(KERN_INFO "init_memory_mapping: [mem %#010lx-%#010lx]\n",
+ start, end - 1);
#if defined(CONFIG_DEBUG_PAGEALLOC) || defined(CONFIG_KMEMCHECK)
/*
}
for (i = 0; i < nr_range; i++)
- printk(KERN_DEBUG " %010lx - %010lx page %s\n",
- mr[i].start, mr[i].end,
+ printk(KERN_DEBUG " [mem %#010lx-%#010lx] page %s\n",
+ mr[i].start, mr[i].end - 1,
(mr[i].page_size_mask & (1<<PG_LEVEL_1G))?"1G":(
(mr[i].page_size_mask & (1<<PG_LEVEL_2M))?"2M":"4k"));
* create a kernel page fault:
*/
#ifdef CONFIG_DEBUG_PAGEALLOC
- printk(KERN_INFO "debug: unmapping init memory %08lx..%08lx\n",
- begin, end);
+ printk(KERN_INFO "debug: unmapping init [mem %#010lx-%#010lx]\n",
+ begin, end - 1);
set_memory_np(begin, (end - begin) >> PAGE_SHIFT);
#else
/*
/* whine about and ignore invalid blks */
if (start > end || nid < 0 || nid >= MAX_NUMNODES) {
- pr_warning("NUMA: Warning: invalid memblk node %d (%Lx-%Lx)\n",
- nid, start, end);
+ pr_warning("NUMA: Warning: invalid memblk node %d [mem %#010Lx-%#010Lx]\n",
+ nid, start, end - 1);
return 0;
}
start = roundup(start, ZONE_ALIGN);
- printk(KERN_INFO "Initmem setup node %d %016Lx-%016Lx\n",
- nid, start, end);
+ printk(KERN_INFO "Initmem setup node %d [mem %#010Lx-%#010Lx]\n",
+ nid, start, end - 1);
/*
* Allocate node data. Try remap allocator first, node-local
}
/* report and initialize */
- printk(KERN_INFO " NODE_DATA [%016Lx - %016Lx]%s\n",
+ printk(KERN_INFO " NODE_DATA [mem %#010Lx-%#010Lx]%s\n",
nd_pa, nd_pa + nd_size - 1, remapped ? " (remapped)" : "");
tnid = early_pfn_to_nid(nd_pa >> PAGE_SHIFT);
if (!remapped && tnid != nid)
*/
if (bi->end > bj->start && bi->start < bj->end) {
if (bi->nid != bj->nid) {
- pr_err("NUMA: node %d (%Lx-%Lx) overlaps with node %d (%Lx-%Lx)\n",
- bi->nid, bi->start, bi->end,
- bj->nid, bj->start, bj->end);
+ pr_err("NUMA: node %d [mem %#010Lx-%#010Lx] overlaps with node %d [mem %#010Lx-%#010Lx]\n",
+ bi->nid, bi->start, bi->end - 1,
+ bj->nid, bj->start, bj->end - 1);
return -EINVAL;
}
- pr_warning("NUMA: Warning: node %d (%Lx-%Lx) overlaps with itself (%Lx-%Lx)\n",
- bi->nid, bi->start, bi->end,
- bj->start, bj->end);
+ pr_warning("NUMA: Warning: node %d [mem %#010Lx-%#010Lx] overlaps with itself [mem %#010Lx-%#010Lx]\n",
+ bi->nid, bi->start, bi->end - 1,
+ bj->start, bj->end - 1);
}
/*
}
if (k < mi->nr_blks)
continue;
- printk(KERN_INFO "NUMA: Node %d [%Lx,%Lx) + [%Lx,%Lx) -> [%Lx,%Lx)\n",
- bi->nid, bi->start, bi->end, bj->start, bj->end,
- start, end);
+ printk(KERN_INFO "NUMA: Node %d [mem %#010Lx-%#010Lx] + [mem %#010Lx-%#010Lx] -> [mem %#010Lx-%#010Lx]\n",
+ bi->nid, bi->start, bi->end - 1, bj->start,
+ bj->end - 1, start, end - 1);
bi->start = start;
bi->end = end;
numa_remove_memblk_from(j--, mi);
{
printk(KERN_INFO "%s\n",
numa_off ? "NUMA turned off" : "No NUMA configuration found");
- printk(KERN_INFO "Faking a node at %016Lx-%016Lx\n",
- 0LLU, PFN_PHYS(max_pfn));
+ printk(KERN_INFO "Faking a node at [mem %#018Lx-%#018Lx]\n",
+ 0LLU, PFN_PHYS(max_pfn) - 1);
node_set(0, numa_nodes_parsed);
numa_add_memblk(0, 0, PFN_PHYS(max_pfn));
numa_remove_memblk_from(phys_blk, pi);
}
- printk(KERN_INFO "Faking node %d at %016Lx-%016Lx (%LuMB)\n", nid,
- eb->start, eb->end, (eb->end - eb->start) >> 20);
+ printk(KERN_INFO "Faking node %d at [mem %#018Lx-%#018Lx] (%LuMB)\n",
+ nid, eb->start, eb->end - 1, (eb->end - eb->start) >> 20);
return 0;
}
return req_type;
}
+struct pagerange_state {
+ unsigned long cur_pfn;
+ int ram;
+ int not_ram;
+};
+
+static int
+pagerange_is_ram_callback(unsigned long initial_pfn, unsigned long total_nr_pages, void *arg)
+{
+ struct pagerange_state *state = arg;
+
+ state->not_ram |= initial_pfn > state->cur_pfn;
+ state->ram |= total_nr_pages > 0;
+ state->cur_pfn = initial_pfn + total_nr_pages;
+
+ return state->ram && state->not_ram;
+}
+
static int pat_pagerange_is_ram(resource_size_t start, resource_size_t end)
{
- int ram_page = 0, not_rampage = 0;
- unsigned long page_nr;
+ int ret = 0;
+ unsigned long start_pfn = start >> PAGE_SHIFT;
+ unsigned long end_pfn = (end + PAGE_SIZE - 1) >> PAGE_SHIFT;
+ struct pagerange_state state = {start_pfn, 0, 0};
- for (page_nr = (start >> PAGE_SHIFT); page_nr < (end >> PAGE_SHIFT);
- ++page_nr) {
- /*
- * For legacy reasons, physical address range in the legacy ISA
- * region is tracked as non-RAM. This will allow users of
- * /dev/mem to map portions of legacy ISA region, even when
- * some of those portions are listed(or not even listed) with
- * different e820 types(RAM/reserved/..)
- */
- if (page_nr >= (ISA_END_ADDRESS >> PAGE_SHIFT) &&
- page_is_ram(page_nr))
- ram_page = 1;
- else
- not_rampage = 1;
-
- if (ram_page == not_rampage)
- return -1;
+ /*
+ * For legacy reasons, physical address range in the legacy ISA
+ * region is tracked as non-RAM. This will allow users of
+ * /dev/mem to map portions of legacy ISA region, even when
+ * some of those portions are listed(or not even listed) with
+ * different e820 types(RAM/reserved/..)
+ */
+ if (start_pfn < ISA_END_ADDRESS >> PAGE_SHIFT)
+ start_pfn = ISA_END_ADDRESS >> PAGE_SHIFT;
+
+ if (start_pfn < end_pfn) {
+ ret = walk_system_ram_range(start_pfn, end_pfn - start_pfn,
+ &state, pagerange_is_ram_callback);
}
- return ram_page;
+ return (ret > 0) ? -1 : (state.ram ? 1 : 0);
}
/*
page = pfn_to_page(pfn);
type = get_page_memtype(page);
if (type != -1) {
- printk(KERN_INFO "reserve_ram_pages_type failed "
- "0x%Lx-0x%Lx, track 0x%lx, req 0x%lx\n",
- start, end, type, req_type);
+ printk(KERN_INFO "reserve_ram_pages_type failed [mem %#010Lx-%#010Lx], track 0x%lx, req 0x%lx\n",
+ start, end - 1, type, req_type);
if (new_type)
*new_type = type;
err = rbt_memtype_check_insert(new, new_type);
if (err) {
- printk(KERN_INFO "reserve_memtype failed 0x%Lx-0x%Lx, "
- "track %s, req %s\n",
- start, end, cattr_name(new->type), cattr_name(req_type));
+ printk(KERN_INFO "reserve_memtype failed [mem %#010Lx-%#010Lx], track %s, req %s\n",
+ start, end - 1,
+ cattr_name(new->type), cattr_name(req_type));
kfree(new);
spin_unlock(&memtype_lock);
spin_unlock(&memtype_lock);
- dprintk("reserve_memtype added 0x%Lx-0x%Lx, track %s, req %s, ret %s\n",
- start, end, cattr_name(new->type), cattr_name(req_type),
+ dprintk("reserve_memtype added [mem %#010Lx-%#010Lx], track %s, req %s, ret %s\n",
+ start, end - 1, cattr_name(new->type), cattr_name(req_type),
new_type ? cattr_name(*new_type) : "-");
return err;
spin_unlock(&memtype_lock);
if (!entry) {
- printk(KERN_INFO "%s:%d freeing invalid memtype %Lx-%Lx\n",
- current->comm, current->pid, start, end);
+ printk(KERN_INFO "%s:%d freeing invalid memtype [mem %#010Lx-%#010Lx]\n",
+ current->comm, current->pid, start, end - 1);
return -EINVAL;
}
kfree(entry);
- dprintk("free_memtype request 0x%Lx-0x%Lx\n", start, end);
+ dprintk("free_memtype request [mem %#010Lx-%#010Lx]\n", start, end - 1);
return 0;
}
while (cursor < to) {
if (!devmem_is_allowed(pfn)) {
- printk(KERN_INFO
- "Program %s tried to access /dev/mem between %Lx->%Lx.\n",
- current->comm, from, to);
+ printk(KERN_INFO "Program %s tried to access /dev/mem between [mem %#010Lx-%#010Lx]\n",
+ current->comm, from, to - 1);
return 0;
}
cursor += PAGE_SIZE;
size;
if (ioremap_change_attr((unsigned long)__va(base), id_sz, flags) < 0) {
- printk(KERN_INFO
- "%s:%d ioremap_change_attr failed %s "
- "for %Lx-%Lx\n",
+ printk(KERN_INFO "%s:%d ioremap_change_attr failed %s "
+ "for [mem %#010Lx-%#010Lx]\n",
current->comm, current->pid,
cattr_name(flags),
- base, (unsigned long long)(base + size));
+ base, (unsigned long long)(base + size-1));
return -EINVAL;
}
return 0;
flags = lookup_memtype(paddr);
if (want_flags != flags) {
- printk(KERN_WARNING
- "%s:%d map pfn RAM range req %s for %Lx-%Lx, got %s\n",
+ printk(KERN_WARNING "%s:%d map pfn RAM range req %s for [mem %#010Lx-%#010Lx], got %s\n",
current->comm, current->pid,
cattr_name(want_flags),
(unsigned long long)paddr,
- (unsigned long long)(paddr + size),
+ (unsigned long long)(paddr + size - 1),
cattr_name(flags));
*vma_prot = __pgprot((pgprot_val(*vma_prot) &
(~_PAGE_CACHE_MASK)) |
!is_new_memtype_allowed(paddr, size, want_flags, flags)) {
free_memtype(paddr, paddr + size);
printk(KERN_ERR "%s:%d map pfn expected mapping type %s"
- " for %Lx-%Lx, got %s\n",
+ " for [mem %#010Lx-%#010Lx], got %s\n",
current->comm, current->pid,
cattr_name(want_flags),
(unsigned long long)paddr,
- (unsigned long long)(paddr + size),
+ (unsigned long long)(paddr + size - 1),
cattr_name(flags));
return -EINVAL;
}
return;
}
- printk(KERN_INFO "SRAT: Node %u PXM %u %Lx-%Lx\n", node, pxm,
- start, end);
+ printk(KERN_INFO "SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx]\n",
+ node, pxm,
+ (unsigned long long) start, (unsigned long long) end - 1);
}
void __init acpi_numa_arch_fixup(void) {}
--- /dev/null
+#
+# arch/x86/realmode/Makefile
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License. See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+#
+
+subdir- := rm
+
+obj-y += init.o
+obj-y += rmpiggy.o
+
+$(obj)/rmpiggy.o: $(obj)/rm/realmode.bin
+
+$(obj)/rm/realmode.bin: FORCE
+ $(Q)$(MAKE) $(build)=$(obj)/rm $@
--- /dev/null
+#include <linux/io.h>
+#include <linux/memblock.h>
+
+#include <asm/cacheflush.h>
+#include <asm/pgtable.h>
+#include <asm/realmode.h>
+
+struct real_mode_header *real_mode_header;
+u32 *trampoline_cr4_features;
+
+void __init setup_real_mode(void)
+{
+ phys_addr_t mem;
+ u16 real_mode_seg;
+ u32 *rel;
+ u32 count;
+ u32 *ptr;
+ u16 *seg;
+ int i;
+ unsigned char *base;
+ struct trampoline_header *trampoline_header;
+ size_t size = PAGE_ALIGN(real_mode_blob_end - real_mode_blob);
+#ifdef CONFIG_X86_64
+ u64 *trampoline_pgd;
+ u64 efer;
+#endif
+
+ /* Has to be in very low memory so we can execute real-mode AP code. */
+ mem = memblock_find_in_range(0, 1<<20, size, PAGE_SIZE);
+ if (!mem)
+ panic("Cannot allocate trampoline\n");
+
+ base = __va(mem);
+ memblock_reserve(mem, size);
+ real_mode_header = (struct real_mode_header *) base;
+ printk(KERN_DEBUG "Base memory trampoline at [%p] %llx size %zu\n",
+ base, (unsigned long long)mem, size);
+
+ memcpy(base, real_mode_blob, size);
+
+ real_mode_seg = __pa(base) >> 4;
+ rel = (u32 *) real_mode_relocs;
+
+ /* 16-bit segment relocations. */
+ count = rel[0];
+ rel = &rel[1];
+ for (i = 0; i < count; i++) {
+ seg = (u16 *) (base + rel[i]);
+ *seg = real_mode_seg;
+ }
+
+ /* 32-bit linear relocations. */
+ count = rel[i];
+ rel = &rel[i + 1];
+ for (i = 0; i < count; i++) {
+ ptr = (u32 *) (base + rel[i]);
+ *ptr += __pa(base);
+ }
+
+ /* Must be perfomed *after* relocation. */
+ trampoline_header = (struct trampoline_header *)
+ __va(real_mode_header->trampoline_header);
+
+#ifdef CONFIG_X86_32
+ trampoline_header->start = __pa(startup_32_smp);
+ trampoline_header->gdt_limit = __BOOT_DS + 7;
+ trampoline_header->gdt_base = __pa(boot_gdt);
+#else
+ /*
+ * Some AMD processors will #GP(0) if EFER.LMA is set in WRMSR
+ * so we need to mask it out.
+ */
+ rdmsrl(MSR_EFER, efer);
+ trampoline_header->efer = efer & ~EFER_LMA;
+
+ trampoline_header->start = (u64) secondary_startup_64;
+ trampoline_cr4_features = &trampoline_header->cr4;
+ *trampoline_cr4_features = read_cr4();
+
+ trampoline_pgd = (u64 *) __va(real_mode_header->trampoline_pgd);
+ trampoline_pgd[0] = __pa(level3_ident_pgt) + _KERNPG_TABLE;
+ trampoline_pgd[511] = __pa(level3_kernel_pgt) + _KERNPG_TABLE;
+#endif
+}
+
+/*
+ * set_real_mode_permissions() gets called very early, to guarantee the
+ * availability of low memory. This is before the proper kernel page
+ * tables are set up, so we cannot set page permissions in that
+ * function. Thus, we use an arch_initcall instead.
+ */
+static int __init set_real_mode_permissions(void)
+{
+ unsigned char *base = (unsigned char *) real_mode_header;
+ size_t size = PAGE_ALIGN(real_mode_blob_end - real_mode_blob);
+
+ size_t ro_size =
+ PAGE_ALIGN(real_mode_header->ro_end) -
+ __pa(base);
+
+ size_t text_size =
+ PAGE_ALIGN(real_mode_header->ro_end) -
+ real_mode_header->text_start;
+
+ unsigned long text_start =
+ (unsigned long) __va(real_mode_header->text_start);
+
+ set_memory_nx((unsigned long) base, size >> PAGE_SHIFT);
+ set_memory_ro((unsigned long) base, ro_size >> PAGE_SHIFT);
+ set_memory_x((unsigned long) text_start, text_size >> PAGE_SHIFT);
+
+ return 0;
+}
+
+arch_initcall(set_real_mode_permissions);
--- /dev/null
+pasyms.h
+realmode.lds
+realmode.relocs
--- /dev/null
+#
+# arch/x86/realmode/Makefile
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License. See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+#
+
+always := realmode.bin realmode.relocs
+
+wakeup-objs := wakeup_asm.o wakemain.o video-mode.o
+wakeup-objs += copy.o bioscall.o regs.o
+# The link order of the video-*.o modules can matter. In particular,
+# video-vga.o *must* be listed first, followed by video-vesa.o.
+# Hardware-specific drivers should follow in the order they should be
+# probed, and video-bios.o should typically be last.
+wakeup-objs += video-vga.o
+wakeup-objs += video-vesa.o
+wakeup-objs += video-bios.o
+
+realmode-y += header.o
+realmode-y += trampoline_$(BITS).o
+realmode-y += stack.o
+realmode-$(CONFIG_X86_32) += reboot_32.o
+realmode-$(CONFIG_ACPI_SLEEP) += $(wakeup-objs)
+
+targets += $(realmode-y)
+
+REALMODE_OBJS = $(addprefix $(obj)/,$(realmode-y))
+
+sed-pasyms := -n -r -e 's/^([0-9a-fA-F]+) [ABCDGRSTVW] (.+)$$/pa_\2 = \2;/p'
+
+quiet_cmd_pasyms = PASYMS $@
+ cmd_pasyms = $(NM) $(filter-out FORCE,$^) | \
+ sed $(sed-pasyms) | sort | uniq > $@
+
+targets += pasyms.h
+$(obj)/pasyms.h: $(REALMODE_OBJS) FORCE
+ $(call if_changed,pasyms)
+
+targets += realmode.lds
+$(obj)/realmode.lds: $(obj)/pasyms.h
+
+LDFLAGS_realmode.elf := --emit-relocs -T
+CPPFLAGS_realmode.lds += -P -C -I$(obj)
+
+targets += realmode.elf
+$(obj)/realmode.elf: $(obj)/realmode.lds $(REALMODE_OBJS) FORCE
+ $(call if_changed,ld)
+
+OBJCOPYFLAGS_realmode.bin := -O binary
+
+targets += realmode.bin
+$(obj)/realmode.bin: $(obj)/realmode.elf $(obj)/realmode.relocs
+ $(call if_changed,objcopy)
+
+quiet_cmd_relocs = RELOCS $@
+ cmd_relocs = arch/x86/tools/relocs --realmode $< > $@
+
+targets += realmode.relocs
+$(obj)/realmode.relocs: $(obj)/realmode.elf FORCE
+ $(call if_changed,relocs)
+
+# ---------------------------------------------------------------------------
+
+# How to compile the 16-bit code. Note we always compile for -march=i386,
+# that way we can complain to the user if the CPU is insufficient.
+KBUILD_CFLAGS := $(LINUXINCLUDE) -m32 -g -Os -D_SETUP -D__KERNEL__ -D_WAKEUP \
+ -I$(srctree)/arch/x86/boot \
+ -DDISABLE_BRANCH_PROFILING \
+ -Wall -Wstrict-prototypes \
+ -march=i386 -mregparm=3 \
+ -include $(srctree)/$(src)/../../boot/code16gcc.h \
+ -fno-strict-aliasing -fomit-frame-pointer \
+ $(call cc-option, -ffreestanding) \
+ $(call cc-option, -fno-toplevel-reorder,\
+ $(call cc-option, -fno-unit-at-a-time)) \
+ $(call cc-option, -fno-stack-protector) \
+ $(call cc-option, -mpreferred-stack-boundary=2)
+KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
+GCOV_PROFILE := n
--- /dev/null
+#include "../../boot/bioscall.S"
--- /dev/null
+#include "../../boot/copy.S"
--- /dev/null
+/*
+ * Real-mode blob header; this should match realmode.h and be
+ * readonly; for mutable data instead add pointers into the .data
+ * or .bss sections as appropriate.
+ */
+
+#include <linux/linkage.h>
+#include <asm/page_types.h>
+
+#include "realmode.h"
+
+ .section ".header", "a"
+
+ .balign 16
+GLOBAL(real_mode_header)
+ .long pa_text_start
+ .long pa_ro_end
+ /* SMP trampoline */
+ .long pa_trampoline_start
+ .long pa_trampoline_status
+ .long pa_trampoline_header
+#ifdef CONFIG_X86_64
+ .long pa_trampoline_pgd;
+#endif
+ /* ACPI S3 wakeup */
+#ifdef CONFIG_ACPI_SLEEP
+ .long pa_wakeup_start
+ .long pa_wakeup_header
+#endif
+ /* APM/BIOS reboot */
+#ifdef CONFIG_X86_32
+ .long pa_machine_real_restart_asm
+#endif
+END(real_mode_header)
+
+ /* End signature, used to verify integrity */
+ .section ".signature","a"
+ .balign 4
+GLOBAL(end_signature)
+ .long REALMODE_END_SIGNATURE
+END(end_signature)
--- /dev/null
+#ifndef ARCH_X86_REALMODE_RM_REALMODE_H
+#define ARCH_X86_REALMODE_RM_REALMODE_H
+
+#ifdef __ASSEMBLY__
+
+/*
+ * 16-bit ljmpw to the real_mode_seg
+ *
+ * This must be open-coded since gas will choke on using a
+ * relocatable symbol for the segment portion.
+ */
+#define LJMPW_RM(to) .byte 0xea ; .word (to), real_mode_seg
+
+#endif /* __ASSEMBLY__ */
+
+/*
+ * Signature at the end of the realmode region
+ */
+#define REALMODE_END_SIGNATURE 0x65a22c82
+
+#endif /* ARCH_X86_REALMODE_RM_REALMODE_H */
--- /dev/null
+/*
+ * realmode.lds.S
+ *
+ * Linker script for the real-mode code
+ */
+
+#include <asm/page_types.h>
+
+#undef i386
+
+OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
+OUTPUT_ARCH(i386)
+
+SECTIONS
+{
+ real_mode_seg = 0;
+
+ . = 0;
+ .header : {
+ pa_real_mode_base = .;
+ *(.header)
+ }
+
+ . = ALIGN(4);
+ .rodata : {
+ *(.rodata)
+ *(.rodata.*)
+ . = ALIGN(16);
+ video_cards = .;
+ *(.videocards)
+ video_cards_end = .;
+ }
+
+ . = ALIGN(PAGE_SIZE);
+ pa_text_start = .;
+ .text : {
+ *(.text)
+ *(.text.*)
+ }
+
+ .text32 : {
+ *(.text32)
+ *(.text32.*)
+ }
+
+ .text64 : {
+ *(.text64)
+ *(.text64.*)
+ }
+ pa_ro_end = .;
+
+ . = ALIGN(PAGE_SIZE);
+ .data : {
+ *(.data)
+ *(.data.*)
+ }
+
+ . = ALIGN(128);
+ .bss : {
+ *(.bss*)
+ }
+
+ /* End signature for integrity checking */
+ . = ALIGN(4);
+ .signature : {
+ *(.signature)
+ }
+
+ /DISCARD/ : {
+ *(.note*)
+ *(.debug*)
+ *(.eh_frame*)
+ }
+
+#include "pasyms.h"
+}
--- /dev/null
+#include <linux/linkage.h>
+#include <linux/init.h>
+#include <asm/segment.h>
+#include <asm/page_types.h>
+#include "realmode.h"
+
+/*
+ * The following code and data reboots the machine by switching to real
+ * mode and jumping to the BIOS reset entry point, as if the CPU has
+ * really been reset. The previous version asked the keyboard
+ * controller to pulse the CPU reset line, which is more thorough, but
+ * doesn't work with at least one type of 486 motherboard. It is easy
+ * to stop this code working; hence the copious comments.
+ *
+ * This code is called with the restart type (0 = BIOS, 1 = APM) in %eax.
+ */
+ .section ".text32", "ax"
+ .code32
+
+ .balign 16
+ENTRY(machine_real_restart_asm)
+ /* Set up the IDT for real mode. */
+ lidtl pa_machine_real_restart_idt
+
+ /*
+ * Set up a GDT from which we can load segment descriptors for real
+ * mode. The GDT is not used in real mode; it is just needed here to
+ * prepare the descriptors.
+ */
+ lgdtl pa_machine_real_restart_gdt
+
+ /*
+ * Load the data segment registers with 16-bit compatible values
+ */
+ movl $16, %ecx
+ movl %ecx, %ds
+ movl %ecx, %es
+ movl %ecx, %fs
+ movl %ecx, %gs
+ movl %ecx, %ss
+ ljmpw $8, $1f
+
+/*
+ * This is 16-bit protected mode code to disable paging and the cache,
+ * switch to real mode and jump to the BIOS reset code.
+ *
+ * The instruction that switches to real mode by writing to CR0 must be
+ * followed immediately by a far jump instruction, which set CS to a
+ * valid value for real mode, and flushes the prefetch queue to avoid
+ * running instructions that have already been decoded in protected
+ * mode.
+ *
+ * Clears all the flags except ET, especially PG (paging), PE
+ * (protected-mode enable) and TS (task switch for coprocessor state
+ * save). Flushes the TLB after paging has been disabled. Sets CD and
+ * NW, to disable the cache on a 486, and invalidates the cache. This
+ * is more like the state of a 486 after reset. I don't know if
+ * something else should be done for other chips.
+ *
+ * More could be done here to set up the registers as if a CPU reset had
+ * occurred; hopefully real BIOSs don't assume much. This is not the
+ * actual BIOS entry point, anyway (that is at 0xfffffff0).
+ *
+ * Most of this work is probably excessive, but it is what is tested.
+ */
+ .text
+ .code16
+
+ .balign 16
+machine_real_restart_asm16:
+1:
+ xorl %ecx, %ecx
+ movl %cr0, %edx
+ andl $0x00000011, %edx
+ orl $0x60000000, %edx
+ movl %edx, %cr0
+ movl %ecx, %cr3
+ movl %cr0, %edx
+ testl $0x60000000, %edx /* If no cache bits -> no wbinvd */
+ jz 2f
+ wbinvd
+2:
+ andb $0x10, %dl
+ movl %edx, %cr0
+ LJMPW_RM(3f)
+3:
+ andw %ax, %ax
+ jz bios
+
+apm:
+ movw $0x1000, %ax
+ movw %ax, %ss
+ movw $0xf000, %sp
+ movw $0x5307, %ax
+ movw $0x0001, %bx
+ movw $0x0003, %cx
+ int $0x15
+ /* This should never return... */
+
+bios:
+ ljmpw $0xf000, $0xfff0
+
+ .section ".rodata", "a"
+
+ .balign 16
+GLOBAL(machine_real_restart_idt)
+ .word 0xffff /* Length - real mode default value */
+ .long 0 /* Base - real mode default value */
+END(machine_real_restart_idt)
+
+ .balign 16
+GLOBAL(machine_real_restart_gdt)
+ /* Self-pointer */
+ .word 0xffff /* Length - real mode default value */
+ .long pa_machine_real_restart_gdt
+ .word 0
+
+ /*
+ * 16-bit code segment pointing to real_mode_seg
+ * Selector value 8
+ */
+ .word 0xffff /* Limit */
+ .long 0x9b000000 + pa_real_mode_base
+ .word 0
+
+ /*
+ * 16-bit data segment with the selector value 16 = 0x10 and
+ * base value 0x100; since this is consistent with real mode
+ * semantics we don't have to reload the segments once CR0.PE = 0.
+ */
+ .quad GDT_ENTRY(0x0093, 0x100, 0xffff)
+END(machine_real_restart_gdt)
--- /dev/null
+#include "../../boot/regs.c"
--- /dev/null
+/*
+ * Common heap and stack allocations
+ */
+
+#include <linux/linkage.h>
+
+ .data
+GLOBAL(HEAP)
+ .long rm_heap
+GLOBAL(heap_end)
+ .long rm_stack
+
+ .bss
+ .balign 16
+GLOBAL(rm_heap)
+ .space 2048
+GLOBAL(rm_stack)
+ .space 2048
+GLOBAL(rm_stack_end)
--- /dev/null
+/*
+ *
+ * Trampoline.S Derived from Setup.S by Linus Torvalds
+ *
+ * 4 Jan 1997 Michael Chastain: changed to gnu as.
+ *
+ * This is only used for booting secondary CPUs in SMP machine
+ *
+ * Entry: CS:IP point to the start of our code, we are
+ * in real mode with no stack, but the rest of the
+ * trampoline page to make our stack and everything else
+ * is a mystery.
+ *
+ * We jump into arch/x86/kernel/head_32.S.
+ *
+ * On entry to trampoline_start, the processor is in real mode
+ * with 16-bit addressing and 16-bit data. CS has some value
+ * and IP is zero. Thus, we load CS to the physical segment
+ * of the real mode code before doing anything further.
+ */
+
+#include <linux/linkage.h>
+#include <linux/init.h>
+#include <asm/segment.h>
+#include <asm/page_types.h>
+#include "realmode.h"
+
+ .text
+ .code16
+
+ .balign PAGE_SIZE
+ENTRY(trampoline_start)
+ wbinvd # Needed for NUMA-Q should be harmless for others
+
+ LJMPW_RM(1f)
+1:
+ mov %cs, %ax # Code and data in the same place
+ mov %ax, %ds
+
+ cli # We should be safe anyway
+
+ movl tr_start, %eax # where we need to go
+
+ movl $0xA5A5A5A5, trampoline_status
+ # write marker for master knows we're running
+
+ /*
+ * GDT tables in non default location kernel can be beyond 16MB and
+ * lgdt will not be able to load the address as in real mode default
+ * operand size is 16bit. Use lgdtl instead to force operand size
+ * to 32 bit.
+ */
+ lidtl tr_idt # load idt with 0, 0
+ lgdtl tr_gdt # load gdt with whatever is appropriate
+
+ movw $1, %dx # protected mode (PE) bit
+ lmsw %dx # into protected mode
+
+ ljmpl $__BOOT_CS, $pa_startup_32
+
+ .section ".text32","ax"
+ .code32
+ENTRY(startup_32) # note: also used from wakeup_asm.S
+ jmp *%eax
+
+ .bss
+ .balign 8
+GLOBAL(trampoline_header)
+ tr_start: .space 4
+ tr_gdt_pad: .space 2
+ tr_gdt: .space 6
+END(trampoline_header)
+
+#include "trampoline_common.S"
--- /dev/null
+/*
+ *
+ * Trampoline.S Derived from Setup.S by Linus Torvalds
+ *
+ * 4 Jan 1997 Michael Chastain: changed to gnu as.
+ * 15 Sept 2005 Eric Biederman: 64bit PIC support
+ *
+ * Entry: CS:IP point to the start of our code, we are
+ * in real mode with no stack, but the rest of the
+ * trampoline page to make our stack and everything else
+ * is a mystery.
+ *
+ * On entry to trampoline_start, the processor is in real mode
+ * with 16-bit addressing and 16-bit data. CS has some value
+ * and IP is zero. Thus, data addresses need to be absolute
+ * (no relocation) and are taken with regard to r_base.
+ *
+ * With the addition of trampoline_level4_pgt this code can
+ * now enter a 64bit kernel that lives at arbitrary 64bit
+ * physical addresses.
+ *
+ * If you work on this file, check the object module with objdump
+ * --full-contents --reloc to make sure there are no relocation
+ * entries.
+ */
+
+#include <linux/linkage.h>
+#include <linux/init.h>
+#include <asm/pgtable_types.h>
+#include <asm/page_types.h>
+#include <asm/msr.h>
+#include <asm/segment.h>
+#include <asm/processor-flags.h>
+#include "realmode.h"
+
+ .text
+ .code16
+
+ .balign PAGE_SIZE
+ENTRY(trampoline_start)
+ cli # We should be safe anyway
+ wbinvd
+
+ LJMPW_RM(1f)
+1:
+ mov %cs, %ax # Code and data in the same place
+ mov %ax, %ds
+ mov %ax, %es
+ mov %ax, %ss
+
+ movl $0xA5A5A5A5, trampoline_status
+ # write marker for master knows we're running
+
+ # Setup stack
+ movl $rm_stack_end, %esp
+
+ call verify_cpu # Verify the cpu supports long mode
+ testl %eax, %eax # Check for return code
+ jnz no_longmode
+
+ /*
+ * GDT tables in non default location kernel can be beyond 16MB and
+ * lgdt will not be able to load the address as in real mode default
+ * operand size is 16bit. Use lgdtl instead to force operand size
+ * to 32 bit.
+ */
+
+ lidtl tr_idt # load idt with 0, 0
+ lgdtl tr_gdt # load gdt with whatever is appropriate
+
+ movw $__KERNEL_DS, %dx # Data segment descriptor
+
+ # Enable protected mode
+ movl $X86_CR0_PE, %eax # protected mode (PE) bit
+ movl %eax, %cr0 # into protected mode
+
+ # flush prefetch and jump to startup_32
+ ljmpl $__KERNEL32_CS, $pa_startup_32
+
+no_longmode:
+ hlt
+ jmp no_longmode
+#include "../kernel/verify_cpu.S"
+
+ .section ".text32","ax"
+ .code32
+ .balign 4
+ENTRY(startup_32)
+ movl %edx, %ss
+ addl $pa_real_mode_base, %esp
+ movl %edx, %ds
+ movl %edx, %es
+ movl %edx, %fs
+ movl %edx, %gs
+
+ movl pa_tr_cr4, %eax
+ movl %eax, %cr4 # Enable PAE mode
+
+ # Setup trampoline 4 level pagetables
+ movl $pa_trampoline_pgd, %eax
+ movl %eax, %cr3
+
+ # Set up EFER
+ movl pa_tr_efer, %eax
+ movl pa_tr_efer + 4, %edx
+ movl $MSR_EFER, %ecx
+ wrmsr
+
+ # Enable paging and in turn activate Long Mode
+ movl $(X86_CR0_PG | X86_CR0_WP | X86_CR0_PE), %eax
+ movl %eax, %cr0
+
+ /*
+ * At this point we're in long mode but in 32bit compatibility mode
+ * with EFER.LME = 1, CS.L = 0, CS.D = 1 (and in turn
+ * EFER.LMA = 1). Now we want to jump in 64bit mode, to do that we use
+ * the new gdt/idt that has __KERNEL_CS with CS.L = 1.
+ */
+ ljmpl $__KERNEL_CS, $pa_startup_64
+
+ .section ".text64","ax"
+ .code64
+ .balign 4
+ENTRY(startup_64)
+ # Now jump into the kernel using virtual addresses
+ jmpq *tr_start(%rip)
+
+ .section ".rodata","a"
+ # Duplicate the global descriptor table
+ # so the kernel can live anywhere
+ .balign 16
+ .globl tr_gdt
+tr_gdt:
+ .short tr_gdt_end - tr_gdt - 1 # gdt limit
+ .long pa_tr_gdt
+ .short 0
+ .quad 0x00cf9b000000ffff # __KERNEL32_CS
+ .quad 0x00af9b000000ffff # __KERNEL_CS
+ .quad 0x00cf93000000ffff # __KERNEL_DS
+tr_gdt_end:
+
+ .bss
+ .balign PAGE_SIZE
+GLOBAL(trampoline_pgd) .space PAGE_SIZE
+
+ .balign 8
+GLOBAL(trampoline_header)
+ tr_start: .space 8
+ GLOBAL(tr_efer) .space 8
+ GLOBAL(tr_cr4) .space 4
+END(trampoline_header)
+
+#include "trampoline_common.S"
--- /dev/null
+ .section ".rodata","a"
+ .balign 16
+tr_idt: .fill 1, 6, 0
+
+ .bss
+ .balign 4
+GLOBAL(trampoline_status) .space 4
--- /dev/null
+#include "../../boot/video-bios.c"
--- /dev/null
+#include "../../boot/video-mode.c"
--- /dev/null
+#include "../../boot/video-vesa.c"
--- /dev/null
+#include "../../boot/video-vga.c"
--- /dev/null
+#include "wakeup.h"
+#include "boot.h"
+
+static void udelay(int loops)
+{
+ while (loops--)
+ io_delay(); /* Approximately 1 us */
+}
+
+static void beep(unsigned int hz)
+{
+ u8 enable;
+
+ if (!hz) {
+ enable = 0x00; /* Turn off speaker */
+ } else {
+ u16 div = 1193181/hz;
+
+ outb(0xb6, 0x43); /* Ctr 2, squarewave, load, binary */
+ io_delay();
+ outb(div, 0x42); /* LSB of counter */
+ io_delay();
+ outb(div >> 8, 0x42); /* MSB of counter */
+ io_delay();
+
+ enable = 0x03; /* Turn on speaker */
+ }
+ inb(0x61); /* Dummy read of System Control Port B */
+ io_delay();
+ outb(enable, 0x61); /* Enable timer 2 output to speaker */
+ io_delay();
+}
+
+#define DOT_HZ 880
+#define DASH_HZ 587
+#define US_PER_DOT 125000
+
+/* Okay, this is totally silly, but it's kind of fun. */
+static void send_morse(const char *pattern)
+{
+ char s;
+
+ while ((s = *pattern++)) {
+ switch (s) {
+ case '.':
+ beep(DOT_HZ);
+ udelay(US_PER_DOT);
+ beep(0);
+ udelay(US_PER_DOT);
+ break;
+ case '-':
+ beep(DASH_HZ);
+ udelay(US_PER_DOT * 3);
+ beep(0);
+ udelay(US_PER_DOT);
+ break;
+ default: /* Assume it's a space */
+ udelay(US_PER_DOT * 3);
+ break;
+ }
+ }
+}
+
+void main(void)
+{
+ /* Kill machine if structures are wrong */
+ if (wakeup_header.real_magic != 0x12345678)
+ while (1)
+ ;
+
+ if (wakeup_header.realmode_flags & 4)
+ send_morse("...-");
+
+ if (wakeup_header.realmode_flags & 1)
+ asm volatile("lcallw $0xc000,$3");
+
+ if (wakeup_header.realmode_flags & 2) {
+ /* Need to call BIOS */
+ probe_cards(0);
+ set_mode(wakeup_header.video_mode);
+ }
+}
--- /dev/null
+/*
+ * Definitions for the wakeup data structure at the head of the
+ * wakeup code.
+ */
+
+#ifndef ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H
+#define ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H
+
+#ifndef __ASSEMBLY__
+#include <linux/types.h>
+
+/* This must match data at wakeup.S */
+struct wakeup_header {
+ u16 video_mode; /* Video mode number */
+ u32 pmode_entry; /* Protected mode resume point, 32-bit only */
+ u16 pmode_cs;
+ u32 pmode_cr0; /* Protected mode cr0 */
+ u32 pmode_cr3; /* Protected mode cr3 */
+ u32 pmode_cr4; /* Protected mode cr4 */
+ u32 pmode_efer_low; /* Protected mode EFER */
+ u32 pmode_efer_high;
+ u64 pmode_gdt;
+ u32 pmode_misc_en_low; /* Protected mode MISC_ENABLE */
+ u32 pmode_misc_en_high;
+ u32 pmode_behavior; /* Wakeup routine behavior flags */
+ u32 realmode_flags;
+ u32 real_magic;
+ u32 signature; /* To check we have correct structure */
+} __attribute__((__packed__));
+
+extern struct wakeup_header wakeup_header;
+#endif
+
+#define WAKEUP_HEADER_OFFSET 8
+#define WAKEUP_HEADER_SIGNATURE 0x51ee1111
+
+/* Wakeup behavior bits */
+#define WAKEUP_BEHAVIOR_RESTORE_MISC_ENABLE 0
+
+#endif /* ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H */
--- /dev/null
+/*
+ * ACPI wakeup real mode startup stub
+ */
+#include <linux/linkage.h>
+#include <asm/segment.h>
+#include <asm/msr-index.h>
+#include <asm/page_types.h>
+#include <asm/pgtable_types.h>
+#include <asm/processor-flags.h>
+#include "realmode.h"
+#include "wakeup.h"
+
+ .code16
+
+/* This should match the structure in wakeup.h */
+ .section ".data", "aw"
+
+ .balign 16
+GLOBAL(wakeup_header)
+ video_mode: .short 0 /* Video mode number */
+ pmode_entry: .long 0
+ pmode_cs: .short __KERNEL_CS
+ pmode_cr0: .long 0 /* Saved %cr0 */
+ pmode_cr3: .long 0 /* Saved %cr3 */
+ pmode_cr4: .long 0 /* Saved %cr4 */
+ pmode_efer: .quad 0 /* Saved EFER */
+ pmode_gdt: .quad 0
+ pmode_misc_en: .quad 0 /* Saved MISC_ENABLE MSR */
+ pmode_behavior: .long 0 /* Wakeup behavior flags */
+ realmode_flags: .long 0
+ real_magic: .long 0
+ signature: .long WAKEUP_HEADER_SIGNATURE
+END(wakeup_header)
+
+ .text
+ .code16
+
+ .balign 16
+ENTRY(wakeup_start)
+ cli
+ cld
+
+ LJMPW_RM(3f)
+3:
+ /* Apparently some dimwit BIOS programmers don't know how to
+ program a PM to RM transition, and we might end up here with
+ junk in the data segment descriptor registers. The only way
+ to repair that is to go into PM and fix it ourselves... */
+ movw $16, %cx
+ lgdtl %cs:wakeup_gdt
+ movl %cr0, %eax
+ orb $X86_CR0_PE, %al
+ movl %eax, %cr0
+ ljmpw $8, $2f
+2:
+ movw %cx, %ds
+ movw %cx, %es
+ movw %cx, %ss
+ movw %cx, %fs
+ movw %cx, %gs
+
+ andb $~X86_CR0_PE, %al
+ movl %eax, %cr0
+ LJMPW_RM(3f)
+3:
+ /* Set up segments */
+ movw %cs, %ax
+ movw %ax, %ss
+ movl $rm_stack_end, %esp
+ movw %ax, %ds
+ movw %ax, %es
+ movw %ax, %fs
+ movw %ax, %gs
+
+ lidtl wakeup_idt
+
+ /* Clear the EFLAGS */
+ pushl $0
+ popfl
+
+ /* Check header signature... */
+ movl signature, %eax
+ cmpl $WAKEUP_HEADER_SIGNATURE, %eax
+ jne bogus_real_magic
+
+ /* Check we really have everything... */
+ movl end_signature, %eax
+ cmpl $REALMODE_END_SIGNATURE, %eax
+ jne bogus_real_magic
+
+ /* Call the C code */
+ calll main
+
+ /* Restore MISC_ENABLE before entering protected mode, in case
+ BIOS decided to clear XD_DISABLE during S3. */
+ movl pmode_behavior, %eax
+ btl $WAKEUP_BEHAVIOR_RESTORE_MISC_ENABLE, %eax
+ jnc 1f
+
+ movl pmode_misc_en, %eax
+ movl pmode_misc_en + 4, %edx
+ movl $MSR_IA32_MISC_ENABLE, %ecx
+ wrmsr
+1:
+
+ /* Do any other stuff... */
+
+#ifndef CONFIG_64BIT
+ /* This could also be done in C code... */
+ movl pmode_cr3, %eax
+ movl %eax, %cr3
+
+ movl pmode_cr4, %ecx
+ jecxz 1f
+ movl %ecx, %cr4
+1:
+ movl pmode_efer, %eax
+ movl pmode_efer + 4, %edx
+ movl %eax, %ecx
+ orl %edx, %ecx
+ jz 1f
+ movl $MSR_EFER, %ecx
+ wrmsr
+1:
+
+ lgdtl pmode_gdt
+
+ /* This really couldn't... */
+ movl pmode_entry, %eax
+ movl pmode_cr0, %ecx
+ movl %ecx, %cr0
+ ljmpl $__KERNEL_CS, $pa_startup_32
+ /* -> jmp *%eax in trampoline_32.S */
+#else
+ jmp trampoline_start
+#endif
+
+bogus_real_magic:
+1:
+ hlt
+ jmp 1b
+
+ .section ".rodata","a"
+
+ /*
+ * Set up the wakeup GDT. We set these up as Big Real Mode,
+ * that is, with limits set to 4 GB. At least the Lenovo
+ * Thinkpad X61 is known to need this for the video BIOS
+ * initialization quirk to work; this is likely to also
+ * be the case for other laptops or integrated video devices.
+ */
+
+ .balign 16
+GLOBAL(wakeup_gdt)
+ .word 3*8-1 /* Self-descriptor */
+ .long pa_wakeup_gdt
+ .word 0
+
+ .word 0xffff /* 16-bit code segment @ real_mode_base */
+ .long 0x9b000000 + pa_real_mode_base
+ .word 0x008f /* big real mode */
+
+ .word 0xffff /* 16-bit data segment @ real_mode_base */
+ .long 0x93000000 + pa_real_mode_base
+ .word 0x008f /* big real mode */
+END(wakeup_gdt)
+
+ .section ".rodata","a"
+ .balign 8
+
+ /* This is the standard real-mode IDT */
+ .balign 16
+GLOBAL(wakeup_idt)
+ .word 0xffff /* limit */
+ .long 0 /* address */
+ .word 0
+END(wakeup_idt)
--- /dev/null
+/*
+ * Wrapper script for the realmode binary as a transport object
+ * before copying to low memory.
+ */
+#include <linux/linkage.h>
+#include <asm/page_types.h>
+
+ .section ".init.data","aw"
+
+ .balign PAGE_SIZE
+
+GLOBAL(real_mode_blob)
+ .incbin "arch/x86/realmode/rm/realmode.bin"
+END(real_mode_blob)
+
+GLOBAL(real_mode_blob_end);
+
+GLOBAL(real_mode_relocs)
+ .incbin "arch/x86/realmode/rm/realmode.relocs"
+END(real_mode_relocs)
346 i386 setns sys_setns
347 i386 process_vm_readv sys_process_vm_readv compat_sys_process_vm_readv
348 i386 process_vm_writev sys_process_vm_writev compat_sys_process_vm_writev
+349 i386 kcmp sys_kcmp
309 common getcpu sys_getcpu
310 64 process_vm_readv sys_process_vm_readv
311 64 process_vm_writev sys_process_vm_writev
+312 64 kcmp sys_kcmp
+
#
# x32-specific system call numbers start at 512 to avoid cache impact
# for native 64-bit operation.
static const char * const sym_regex_realmode[S_NSYMTYPES] = {
+/*
+ * These symbols are known to be relative, even if the linker marks them
+ * as absolute (typically defined outside any section in the linker script.)
+ */
+ [S_REL] =
+ "^pa_",
+
/*
* These are 16-bit segment symbols when compiling 16-bit code.
*/
copy_from_user(&set.sig[1], extramask, sig_size))
goto segfault;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (copy_sc_from_user(¤t->thread.regs, sc))
if (copy_from_user(&set, &uc->uc_sigmask, sizeof(set)))
goto segfault;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (copy_sc_from_user(¤t->thread.regs, &uc->uc_mcontext))
.wbinvd = native_wbinvd,
.read_msr = native_read_msr_safe,
+ .rdmsr_regs = native_rdmsr_safe_regs,
.write_msr = xen_write_msr_safe,
+ .wrmsr_regs = native_wrmsr_safe_regs,
+
.read_tsc = native_read_tsc,
.read_pmc = native_read_pmc,
#define DEBUG_SIG 0
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
extern struct task_struct *coproc_owners[];
struct rt_sigframe
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, frame))
siginfo_t info;
int signr;
struct k_sigaction ka;
- sigset_t oldset;
-
- if (try_to_freeze())
- goto no_signal;
-
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
task_pt_regs(current)->icountlevel = 0;
/* Whee! Actually deliver the signal. */
/* Set up the stack frame */
- ret = setup_frame(signr, &ka, &info, oldset, regs);
+ ret = setup_frame(signr, &ka, &info, sigmask_to_save(), regs);
if (ret)
return;
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- block_sigmask(&ka, signr);
+ signal_delivered(signr, info, ka, regs, 0);
if (current->ptrace & PT_SINGLESTEP)
task_pt_regs(current)->icountlevel = 1;
return;
}
-no_signal:
/* Did we come from a system call? */
if ((signed) regs->syscall >= 0) {
/* Restart the system call - no handlers present */
}
/* If there's no signal to deliver, we just restore the saved mask. */
- if (test_and_clear_thread_flag(TIF_RESTORE_SIGMASK))
- set_current_blocked(¤t->saved_sigmask);
+ restore_saved_sigmask();
if (current->ptrace & PT_SINGLESTEP)
task_pt_regs(current)->icountlevel = 1;
if (test_thread_flag(TIF_SIGPENDING))
do_signal(regs);
- if (test_and_clear_thread_flag(TIF_NOTIFY_RESUME)) {
+ if (test_and_clear_thread_flag(TIF_NOTIFY_RESUME))
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
- }
}
config IOSCHED_CFQ
tristate "CFQ I/O scheduler"
- # If BLK_CGROUP is a module, CFQ has to be built as module.
- depends on (BLK_CGROUP=m && m) || !BLK_CGROUP || BLK_CGROUP=y
default y
---help---
The CFQ I/O scheduler tries to distribute bandwidth equally
This is the default I/O scheduler.
- Note: If BLK_CGROUP=m, then CFQ can be built only as module.
-
config CFQ_GROUP_IOSCHED
bool "CFQ Group Scheduling support"
depends on IOSCHED_CFQ && BLK_CGROUP
* Nauman Rafique <nauman@google.com>
*/
#include <linux/ioprio.h>
-#include <linux/seq_file.h>
#include <linux/kdev_t.h>
#include <linux/module.h>
#include <linux/err.h>
#include <linux/blkdev.h>
#include <linux/slab.h>
-#include "blk-cgroup.h"
#include <linux/genhd.h>
+#include <linux/delay.h>
+#include <linux/atomic.h>
+#include "blk-cgroup.h"
+#include "blk.h"
#define MAX_KEY_LEN 100
-static DEFINE_SPINLOCK(blkio_list_lock);
-static LIST_HEAD(blkio_list);
+static DEFINE_MUTEX(blkcg_pol_mutex);
-struct blkio_cgroup blkio_root_cgroup = { .weight = 2*BLKIO_WEIGHT_DEFAULT };
-EXPORT_SYMBOL_GPL(blkio_root_cgroup);
+struct blkcg blkcg_root = { .cfq_weight = 2 * CFQ_WEIGHT_DEFAULT };
+EXPORT_SYMBOL_GPL(blkcg_root);
-/* for encoding cft->private value on file */
-#define BLKIOFILE_PRIVATE(x, val) (((x) << 16) | (val))
-/* What policy owns the file, proportional or throttle */
-#define BLKIOFILE_POLICY(val) (((val) >> 16) & 0xffff)
-#define BLKIOFILE_ATTR(val) ((val) & 0xffff)
+static struct blkcg_policy *blkcg_policy[BLKCG_MAX_POLS];
-static inline void blkio_policy_insert_node(struct blkio_cgroup *blkcg,
- struct blkio_policy_node *pn)
+struct blkcg *cgroup_to_blkcg(struct cgroup *cgroup)
{
- list_add(&pn->node, &blkcg->policy_list);
+ return container_of(cgroup_subsys_state(cgroup, blkio_subsys_id),
+ struct blkcg, css);
}
+EXPORT_SYMBOL_GPL(cgroup_to_blkcg);
-static inline bool cftype_blkg_same_policy(struct cftype *cft,
- struct blkio_group *blkg)
+static struct blkcg *task_blkcg(struct task_struct *tsk)
{
- enum blkio_policy_id plid = BLKIOFILE_POLICY(cft->private);
-
- if (blkg->plid == plid)
- return 1;
-
- return 0;
+ return container_of(task_subsys_state(tsk, blkio_subsys_id),
+ struct blkcg, css);
}
-/* Determines if policy node matches cgroup file being accessed */
-static inline bool pn_matches_cftype(struct cftype *cft,
- struct blkio_policy_node *pn)
+struct blkcg *bio_blkcg(struct bio *bio)
{
- enum blkio_policy_id plid = BLKIOFILE_POLICY(cft->private);
- int fileid = BLKIOFILE_ATTR(cft->private);
-
- return (plid == pn->plid && fileid == pn->fileid);
+ if (bio && bio->bi_css)
+ return container_of(bio->bi_css, struct blkcg, css);
+ return task_blkcg(current);
}
+EXPORT_SYMBOL_GPL(bio_blkcg);
-/* Must be called with blkcg->lock held */
-static inline void blkio_policy_delete_node(struct blkio_policy_node *pn)
+static bool blkcg_policy_enabled(struct request_queue *q,
+ const struct blkcg_policy *pol)
{
- list_del(&pn->node);
+ return pol && test_bit(pol->plid, q->blkcg_pols);
}
-/* Must be called with blkcg->lock held */
-static struct blkio_policy_node *
-blkio_policy_search_node(const struct blkio_cgroup *blkcg, dev_t dev,
- enum blkio_policy_id plid, int fileid)
+/**
+ * blkg_free - free a blkg
+ * @blkg: blkg to free
+ *
+ * Free @blkg which may be partially allocated.
+ */
+static void blkg_free(struct blkcg_gq *blkg)
{
- struct blkio_policy_node *pn;
-
- list_for_each_entry(pn, &blkcg->policy_list, node) {
- if (pn->dev == dev && pn->plid == plid && pn->fileid == fileid)
- return pn;
- }
+ int i;
- return NULL;
-}
+ if (!blkg)
+ return;
-struct blkio_cgroup *cgroup_to_blkio_cgroup(struct cgroup *cgroup)
-{
- return container_of(cgroup_subsys_state(cgroup, blkio_subsys_id),
- struct blkio_cgroup, css);
-}
-EXPORT_SYMBOL_GPL(cgroup_to_blkio_cgroup);
+ for (i = 0; i < BLKCG_MAX_POLS; i++) {
+ struct blkcg_policy *pol = blkcg_policy[i];
+ struct blkg_policy_data *pd = blkg->pd[i];
-struct blkio_cgroup *task_blkio_cgroup(struct task_struct *tsk)
-{
- return container_of(task_subsys_state(tsk, blkio_subsys_id),
- struct blkio_cgroup, css);
-}
-EXPORT_SYMBOL_GPL(task_blkio_cgroup);
+ if (!pd)
+ continue;
-static inline void
-blkio_update_group_weight(struct blkio_group *blkg, unsigned int weight)
-{
- struct blkio_policy_type *blkiop;
+ if (pol && pol->pd_exit_fn)
+ pol->pd_exit_fn(blkg);
- list_for_each_entry(blkiop, &blkio_list, list) {
- /* If this policy does not own the blkg, do not send updates */
- if (blkiop->plid != blkg->plid)
- continue;
- if (blkiop->ops.blkio_update_group_weight_fn)
- blkiop->ops.blkio_update_group_weight_fn(blkg->key,
- blkg, weight);
+ kfree(pd);
}
+
+ kfree(blkg);
}
-static inline void blkio_update_group_bps(struct blkio_group *blkg, u64 bps,
- int fileid)
+/**
+ * blkg_alloc - allocate a blkg
+ * @blkcg: block cgroup the new blkg is associated with
+ * @q: request_queue the new blkg is associated with
+ *
+ * Allocate a new blkg assocating @blkcg and @q.
+ */
+static struct blkcg_gq *blkg_alloc(struct blkcg *blkcg, struct request_queue *q)
{
- struct blkio_policy_type *blkiop;
-
- list_for_each_entry(blkiop, &blkio_list, list) {
-
- /* If this policy does not own the blkg, do not send updates */
- if (blkiop->plid != blkg->plid)
- continue;
-
- if (fileid == BLKIO_THROTL_read_bps_device
- && blkiop->ops.blkio_update_group_read_bps_fn)
- blkiop->ops.blkio_update_group_read_bps_fn(blkg->key,
- blkg, bps);
+ struct blkcg_gq *blkg;
+ int i;
- if (fileid == BLKIO_THROTL_write_bps_device
- && blkiop->ops.blkio_update_group_write_bps_fn)
- blkiop->ops.blkio_update_group_write_bps_fn(blkg->key,
- blkg, bps);
- }
-}
+ /* alloc and init base part */
+ blkg = kzalloc_node(sizeof(*blkg), GFP_ATOMIC, q->node);
+ if (!blkg)
+ return NULL;
-static inline void blkio_update_group_iops(struct blkio_group *blkg,
- unsigned int iops, int fileid)
-{
- struct blkio_policy_type *blkiop;
+ blkg->q = q;
+ INIT_LIST_HEAD(&blkg->q_node);
+ blkg->blkcg = blkcg;
+ blkg->refcnt = 1;
- list_for_each_entry(blkiop, &blkio_list, list) {
+ for (i = 0; i < BLKCG_MAX_POLS; i++) {
+ struct blkcg_policy *pol = blkcg_policy[i];
+ struct blkg_policy_data *pd;
- /* If this policy does not own the blkg, do not send updates */
- if (blkiop->plid != blkg->plid)
+ if (!blkcg_policy_enabled(q, pol))
continue;
- if (fileid == BLKIO_THROTL_read_iops_device
- && blkiop->ops.blkio_update_group_read_iops_fn)
- blkiop->ops.blkio_update_group_read_iops_fn(blkg->key,
- blkg, iops);
+ /* alloc per-policy data and attach it to blkg */
+ pd = kzalloc_node(pol->pd_size, GFP_ATOMIC, q->node);
+ if (!pd) {
+ blkg_free(blkg);
+ return NULL;
+ }
- if (fileid == BLKIO_THROTL_write_iops_device
- && blkiop->ops.blkio_update_group_write_iops_fn)
- blkiop->ops.blkio_update_group_write_iops_fn(blkg->key,
- blkg,iops);
+ blkg->pd[i] = pd;
+ pd->blkg = blkg;
}
-}
-/*
- * Add to the appropriate stat variable depending on the request type.
- * This should be called with the blkg->stats_lock held.
- */
-static void blkio_add_stat(uint64_t *stat, uint64_t add, bool direction,
- bool sync)
-{
- if (direction)
- stat[BLKIO_STAT_WRITE] += add;
- else
- stat[BLKIO_STAT_READ] += add;
- if (sync)
- stat[BLKIO_STAT_SYNC] += add;
- else
- stat[BLKIO_STAT_ASYNC] += add;
-}
+ /* invoke per-policy init */
+ for (i = 0; i < BLKCG_MAX_POLS; i++) {
+ struct blkcg_policy *pol = blkcg_policy[i];
-/*
- * Decrements the appropriate stat variable if non-zero depending on the
- * request type. Panics on value being zero.
- * This should be called with the blkg->stats_lock held.
- */
-static void blkio_check_and_dec_stat(uint64_t *stat, bool direction, bool sync)
-{
- if (direction) {
- BUG_ON(stat[BLKIO_STAT_WRITE] == 0);
- stat[BLKIO_STAT_WRITE]--;
- } else {
- BUG_ON(stat[BLKIO_STAT_READ] == 0);
- stat[BLKIO_STAT_READ]--;
- }
- if (sync) {
- BUG_ON(stat[BLKIO_STAT_SYNC] == 0);
- stat[BLKIO_STAT_SYNC]--;
- } else {
- BUG_ON(stat[BLKIO_STAT_ASYNC] == 0);
- stat[BLKIO_STAT_ASYNC]--;
+ if (blkcg_policy_enabled(blkg->q, pol))
+ pol->pd_init_fn(blkg);
}
-}
-#ifdef CONFIG_DEBUG_BLK_CGROUP
-/* This should be called with the blkg->stats_lock held. */
-static void blkio_set_start_group_wait_time(struct blkio_group *blkg,
- struct blkio_group *curr_blkg)
-{
- if (blkio_blkg_waiting(&blkg->stats))
- return;
- if (blkg == curr_blkg)
- return;
- blkg->stats.start_group_wait_time = sched_clock();
- blkio_mark_blkg_waiting(&blkg->stats);
+ return blkg;
}
-/* This should be called with the blkg->stats_lock held. */
-static void blkio_update_group_wait_time(struct blkio_group_stats *stats)
+static struct blkcg_gq *__blkg_lookup(struct blkcg *blkcg,
+ struct request_queue *q)
{
- unsigned long long now;
+ struct blkcg_gq *blkg;
- if (!blkio_blkg_waiting(stats))
- return;
+ blkg = rcu_dereference(blkcg->blkg_hint);
+ if (blkg && blkg->q == q)
+ return blkg;
- now = sched_clock();
- if (time_after64(now, stats->start_group_wait_time))
- stats->group_wait_time += now - stats->start_group_wait_time;
- blkio_clear_blkg_waiting(stats);
+ /*
+ * Hint didn't match. Look up from the radix tree. Note that we
+ * may not be holding queue_lock and thus are not sure whether
+ * @blkg from blkg_tree has already been removed or not, so we
+ * can't update hint to the lookup result. Leave it to the caller.
+ */
+ blkg = radix_tree_lookup(&blkcg->blkg_tree, q->id);
+ if (blkg && blkg->q == q)
+ return blkg;
+
+ return NULL;
}
-/* This should be called with the blkg->stats_lock held. */
-static void blkio_end_empty_time(struct blkio_group_stats *stats)
+/**
+ * blkg_lookup - lookup blkg for the specified blkcg - q pair
+ * @blkcg: blkcg of interest
+ * @q: request_queue of interest
+ *
+ * Lookup blkg for the @blkcg - @q pair. This function should be called
+ * under RCU read lock and is guaranteed to return %NULL if @q is bypassing
+ * - see blk_queue_bypass_start() for details.
+ */
+struct blkcg_gq *blkg_lookup(struct blkcg *blkcg, struct request_queue *q)
{
- unsigned long long now;
-
- if (!blkio_blkg_empty(stats))
- return;
+ WARN_ON_ONCE(!rcu_read_lock_held());
- now = sched_clock();
- if (time_after64(now, stats->start_empty_time))
- stats->empty_time += now - stats->start_empty_time;
- blkio_clear_blkg_empty(stats);
+ if (unlikely(blk_queue_bypass(q)))
+ return NULL;
+ return __blkg_lookup(blkcg, q);
}
+EXPORT_SYMBOL_GPL(blkg_lookup);
-void blkiocg_update_set_idle_time_stats(struct blkio_group *blkg)
+static struct blkcg_gq *__blkg_lookup_create(struct blkcg *blkcg,
+ struct request_queue *q)
+ __releases(q->queue_lock) __acquires(q->queue_lock)
{
- unsigned long flags;
+ struct blkcg_gq *blkg;
+ int ret;
- spin_lock_irqsave(&blkg->stats_lock, flags);
- BUG_ON(blkio_blkg_idling(&blkg->stats));
- blkg->stats.start_idle_time = sched_clock();
- blkio_mark_blkg_idling(&blkg->stats);
- spin_unlock_irqrestore(&blkg->stats_lock, flags);
-}
-EXPORT_SYMBOL_GPL(blkiocg_update_set_idle_time_stats);
+ WARN_ON_ONCE(!rcu_read_lock_held());
+ lockdep_assert_held(q->queue_lock);
-void blkiocg_update_idle_time_stats(struct blkio_group *blkg)
-{
- unsigned long flags;
- unsigned long long now;
- struct blkio_group_stats *stats;
-
- spin_lock_irqsave(&blkg->stats_lock, flags);
- stats = &blkg->stats;
- if (blkio_blkg_idling(stats)) {
- now = sched_clock();
- if (time_after64(now, stats->start_idle_time))
- stats->idle_time += now - stats->start_idle_time;
- blkio_clear_blkg_idling(stats);
+ /* lookup and update hint on success, see __blkg_lookup() for details */
+ blkg = __blkg_lookup(blkcg, q);
+ if (blkg) {
+ rcu_assign_pointer(blkcg->blkg_hint, blkg);
+ return blkg;
}
- spin_unlock_irqrestore(&blkg->stats_lock, flags);
-}
-EXPORT_SYMBOL_GPL(blkiocg_update_idle_time_stats);
-void blkiocg_update_avg_queue_size_stats(struct blkio_group *blkg)
-{
- unsigned long flags;
- struct blkio_group_stats *stats;
-
- spin_lock_irqsave(&blkg->stats_lock, flags);
- stats = &blkg->stats;
- stats->avg_queue_size_sum +=
- stats->stat_arr[BLKIO_STAT_QUEUED][BLKIO_STAT_READ] +
- stats->stat_arr[BLKIO_STAT_QUEUED][BLKIO_STAT_WRITE];
- stats->avg_queue_size_samples++;
- blkio_update_group_wait_time(stats);
- spin_unlock_irqrestore(&blkg->stats_lock, flags);
-}
-EXPORT_SYMBOL_GPL(blkiocg_update_avg_queue_size_stats);
+ /* blkg holds a reference to blkcg */
+ if (!css_tryget(&blkcg->css))
+ return ERR_PTR(-EINVAL);
-void blkiocg_set_start_empty_time(struct blkio_group *blkg)
-{
- unsigned long flags;
- struct blkio_group_stats *stats;
+ /* allocate */
+ ret = -ENOMEM;
+ blkg = blkg_alloc(blkcg, q);
+ if (unlikely(!blkg))
+ goto err_put;
- spin_lock_irqsave(&blkg->stats_lock, flags);
- stats = &blkg->stats;
+ /* insert */
+ ret = radix_tree_preload(GFP_ATOMIC);
+ if (ret)
+ goto err_free;
- if (stats->stat_arr[BLKIO_STAT_QUEUED][BLKIO_STAT_READ] ||
- stats->stat_arr[BLKIO_STAT_QUEUED][BLKIO_STAT_WRITE]) {
- spin_unlock_irqrestore(&blkg->stats_lock, flags);
- return;
+ spin_lock(&blkcg->lock);
+ ret = radix_tree_insert(&blkcg->blkg_tree, q->id, blkg);
+ if (likely(!ret)) {
+ hlist_add_head_rcu(&blkg->blkcg_node, &blkcg->blkg_list);
+ list_add(&blkg->q_node, &q->blkg_list);
}
+ spin_unlock(&blkcg->lock);
- /*
- * group is already marked empty. This can happen if cfqq got new
- * request in parent group and moved to this group while being added
- * to service tree. Just ignore the event and move on.
- */
- if(blkio_blkg_empty(stats)) {
- spin_unlock_irqrestore(&blkg->stats_lock, flags);
- return;
- }
+ radix_tree_preload_end();
- stats->start_empty_time = sched_clock();
- blkio_mark_blkg_empty(stats);
- spin_unlock_irqrestore(&blkg->stats_lock, flags);
+ if (!ret)
+ return blkg;
+err_free:
+ blkg_free(blkg);
+err_put:
+ css_put(&blkcg->css);
+ return ERR_PTR(ret);
}
-EXPORT_SYMBOL_GPL(blkiocg_set_start_empty_time);
-void blkiocg_update_dequeue_stats(struct blkio_group *blkg,
- unsigned long dequeue)
+struct blkcg_gq *blkg_lookup_create(struct blkcg *blkcg,
+ struct request_queue *q)
{
- blkg->stats.dequeue += dequeue;
-}
-EXPORT_SYMBOL_GPL(blkiocg_update_dequeue_stats);
-#else
-static inline void blkio_set_start_group_wait_time(struct blkio_group *blkg,
- struct blkio_group *curr_blkg) {}
-static inline void blkio_end_empty_time(struct blkio_group_stats *stats) {}
-#endif
-
-void blkiocg_update_io_add_stats(struct blkio_group *blkg,
- struct blkio_group *curr_blkg, bool direction,
- bool sync)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&blkg->stats_lock, flags);
- blkio_add_stat(blkg->stats.stat_arr[BLKIO_STAT_QUEUED], 1, direction,
- sync);
- blkio_end_empty_time(&blkg->stats);
- blkio_set_start_group_wait_time(blkg, curr_blkg);
- spin_unlock_irqrestore(&blkg->stats_lock, flags);
+ /*
+ * This could be the first entry point of blkcg implementation and
+ * we shouldn't allow anything to go through for a bypassing queue.
+ */
+ if (unlikely(blk_queue_bypass(q)))
+ return ERR_PTR(blk_queue_dead(q) ? -EINVAL : -EBUSY);
+ return __blkg_lookup_create(blkcg, q);
}
-EXPORT_SYMBOL_GPL(blkiocg_update_io_add_stats);
+EXPORT_SYMBOL_GPL(blkg_lookup_create);
-void blkiocg_update_io_remove_stats(struct blkio_group *blkg,
- bool direction, bool sync)
+static void blkg_destroy(struct blkcg_gq *blkg)
{
- unsigned long flags;
+ struct request_queue *q = blkg->q;
+ struct blkcg *blkcg = blkg->blkcg;
- spin_lock_irqsave(&blkg->stats_lock, flags);
- blkio_check_and_dec_stat(blkg->stats.stat_arr[BLKIO_STAT_QUEUED],
- direction, sync);
- spin_unlock_irqrestore(&blkg->stats_lock, flags);
-}
-EXPORT_SYMBOL_GPL(blkiocg_update_io_remove_stats);
+ lockdep_assert_held(q->queue_lock);
+ lockdep_assert_held(&blkcg->lock);
-void blkiocg_update_timeslice_used(struct blkio_group *blkg, unsigned long time,
- unsigned long unaccounted_time)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&blkg->stats_lock, flags);
- blkg->stats.time += time;
-#ifdef CONFIG_DEBUG_BLK_CGROUP
- blkg->stats.unaccounted_time += unaccounted_time;
-#endif
- spin_unlock_irqrestore(&blkg->stats_lock, flags);
-}
-EXPORT_SYMBOL_GPL(blkiocg_update_timeslice_used);
+ /* Something wrong if we are trying to remove same group twice */
+ WARN_ON_ONCE(list_empty(&blkg->q_node));
+ WARN_ON_ONCE(hlist_unhashed(&blkg->blkcg_node));
-/*
- * should be called under rcu read lock or queue lock to make sure blkg pointer
- * is valid.
- */
-void blkiocg_update_dispatch_stats(struct blkio_group *blkg,
- uint64_t bytes, bool direction, bool sync)
-{
- struct blkio_group_stats_cpu *stats_cpu;
- unsigned long flags;
+ radix_tree_delete(&blkcg->blkg_tree, blkg->q->id);
+ list_del_init(&blkg->q_node);
+ hlist_del_init_rcu(&blkg->blkcg_node);
/*
- * Disabling interrupts to provide mutual exclusion between two
- * writes on same cpu. It probably is not needed for 64bit. Not
- * optimizing that case yet.
+ * Both setting lookup hint to and clearing it from @blkg are done
+ * under queue_lock. If it's not pointing to @blkg now, it never
+ * will. Hint assignment itself can race safely.
*/
- local_irq_save(flags);
-
- stats_cpu = this_cpu_ptr(blkg->stats_cpu);
-
- u64_stats_update_begin(&stats_cpu->syncp);
- stats_cpu->sectors += bytes >> 9;
- blkio_add_stat(stats_cpu->stat_arr_cpu[BLKIO_STAT_CPU_SERVICED],
- 1, direction, sync);
- blkio_add_stat(stats_cpu->stat_arr_cpu[BLKIO_STAT_CPU_SERVICE_BYTES],
- bytes, direction, sync);
- u64_stats_update_end(&stats_cpu->syncp);
- local_irq_restore(flags);
-}
-EXPORT_SYMBOL_GPL(blkiocg_update_dispatch_stats);
-
-void blkiocg_update_completion_stats(struct blkio_group *blkg,
- uint64_t start_time, uint64_t io_start_time, bool direction, bool sync)
-{
- struct blkio_group_stats *stats;
- unsigned long flags;
- unsigned long long now = sched_clock();
-
- spin_lock_irqsave(&blkg->stats_lock, flags);
- stats = &blkg->stats;
- if (time_after64(now, io_start_time))
- blkio_add_stat(stats->stat_arr[BLKIO_STAT_SERVICE_TIME],
- now - io_start_time, direction, sync);
- if (time_after64(io_start_time, start_time))
- blkio_add_stat(stats->stat_arr[BLKIO_STAT_WAIT_TIME],
- io_start_time - start_time, direction, sync);
- spin_unlock_irqrestore(&blkg->stats_lock, flags);
-}
-EXPORT_SYMBOL_GPL(blkiocg_update_completion_stats);
-
-/* Merged stats are per cpu. */
-void blkiocg_update_io_merged_stats(struct blkio_group *blkg, bool direction,
- bool sync)
-{
- struct blkio_group_stats_cpu *stats_cpu;
- unsigned long flags;
+ if (rcu_dereference_raw(blkcg->blkg_hint) == blkg)
+ rcu_assign_pointer(blkcg->blkg_hint, NULL);
/*
- * Disabling interrupts to provide mutual exclusion between two
- * writes on same cpu. It probably is not needed for 64bit. Not
- * optimizing that case yet.
+ * Put the reference taken at the time of creation so that when all
+ * queues are gone, group can be destroyed.
*/
- local_irq_save(flags);
-
- stats_cpu = this_cpu_ptr(blkg->stats_cpu);
-
- u64_stats_update_begin(&stats_cpu->syncp);
- blkio_add_stat(stats_cpu->stat_arr_cpu[BLKIO_STAT_CPU_MERGED], 1,
- direction, sync);
- u64_stats_update_end(&stats_cpu->syncp);
- local_irq_restore(flags);
+ blkg_put(blkg);
}
-EXPORT_SYMBOL_GPL(blkiocg_update_io_merged_stats);
-/*
- * This function allocates the per cpu stats for blkio_group. Should be called
- * from sleepable context as alloc_per_cpu() requires that.
+/**
+ * blkg_destroy_all - destroy all blkgs associated with a request_queue
+ * @q: request_queue of interest
+ *
+ * Destroy all blkgs associated with @q.
*/
-int blkio_alloc_blkg_stats(struct blkio_group *blkg)
+static void blkg_destroy_all(struct request_queue *q)
{
- /* Allocate memory for per cpu stats */
- blkg->stats_cpu = alloc_percpu(struct blkio_group_stats_cpu);
- if (!blkg->stats_cpu)
- return -ENOMEM;
- return 0;
-}
-EXPORT_SYMBOL_GPL(blkio_alloc_blkg_stats);
+ struct blkcg_gq *blkg, *n;
-void blkiocg_add_blkio_group(struct blkio_cgroup *blkcg,
- struct blkio_group *blkg, void *key, dev_t dev,
- enum blkio_policy_id plid)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&blkcg->lock, flags);
- spin_lock_init(&blkg->stats_lock);
- rcu_assign_pointer(blkg->key, key);
- blkg->blkcg_id = css_id(&blkcg->css);
- hlist_add_head_rcu(&blkg->blkcg_node, &blkcg->blkg_list);
- blkg->plid = plid;
- spin_unlock_irqrestore(&blkcg->lock, flags);
- /* Need to take css reference ? */
- cgroup_path(blkcg->css.cgroup, blkg->path, sizeof(blkg->path));
- blkg->dev = dev;
-}
-EXPORT_SYMBOL_GPL(blkiocg_add_blkio_group);
+ lockdep_assert_held(q->queue_lock);
-static void __blkiocg_del_blkio_group(struct blkio_group *blkg)
-{
- hlist_del_init_rcu(&blkg->blkcg_node);
- blkg->blkcg_id = 0;
-}
+ list_for_each_entry_safe(blkg, n, &q->blkg_list, q_node) {
+ struct blkcg *blkcg = blkg->blkcg;
-/*
- * returns 0 if blkio_group was still on cgroup list. Otherwise returns 1
- * indicating that blk_group was unhashed by the time we got to it.
- */
-int blkiocg_del_blkio_group(struct blkio_group *blkg)
-{
- struct blkio_cgroup *blkcg;
- unsigned long flags;
- struct cgroup_subsys_state *css;
- int ret = 1;
-
- rcu_read_lock();
- css = css_lookup(&blkio_subsys, blkg->blkcg_id);
- if (css) {
- blkcg = container_of(css, struct blkio_cgroup, css);
- spin_lock_irqsave(&blkcg->lock, flags);
- if (!hlist_unhashed(&blkg->blkcg_node)) {
- __blkiocg_del_blkio_group(blkg);
- ret = 0;
- }
- spin_unlock_irqrestore(&blkcg->lock, flags);
+ spin_lock(&blkcg->lock);
+ blkg_destroy(blkg);
+ spin_unlock(&blkcg->lock);
}
-
- rcu_read_unlock();
- return ret;
}
-EXPORT_SYMBOL_GPL(blkiocg_del_blkio_group);
-/* called under rcu_read_lock(). */
-struct blkio_group *blkiocg_lookup_group(struct blkio_cgroup *blkcg, void *key)
+static void blkg_rcu_free(struct rcu_head *rcu_head)
{
- struct blkio_group *blkg;
- struct hlist_node *n;
- void *__key;
-
- hlist_for_each_entry_rcu(blkg, n, &blkcg->blkg_list, blkcg_node) {
- __key = blkg->key;
- if (__key == key)
- return blkg;
- }
-
- return NULL;
+ blkg_free(container_of(rcu_head, struct blkcg_gq, rcu_head));
}
-EXPORT_SYMBOL_GPL(blkiocg_lookup_group);
-static void blkio_reset_stats_cpu(struct blkio_group *blkg)
+void __blkg_release(struct blkcg_gq *blkg)
{
- struct blkio_group_stats_cpu *stats_cpu;
- int i, j, k;
+ /* release the extra blkcg reference this blkg has been holding */
+ css_put(&blkg->blkcg->css);
+
/*
- * Note: On 64 bit arch this should not be an issue. This has the
- * possibility of returning some inconsistent value on 32bit arch
- * as 64bit update on 32bit is non atomic. Taking care of this
- * corner case makes code very complicated, like sending IPIs to
- * cpus, taking care of stats of offline cpus etc.
+ * A group is freed in rcu manner. But having an rcu lock does not
+ * mean that one can access all the fields of blkg and assume these
+ * are valid. For example, don't try to follow throtl_data and
+ * request queue links.
*
- * reset stats is anyway more of a debug feature and this sounds a
- * corner case. So I am not complicating the code yet until and
- * unless this becomes a real issue.
+ * Having a reference to blkg under an rcu allows acess to only
+ * values local to groups like group stats and group rate limits
*/
- for_each_possible_cpu(i) {
- stats_cpu = per_cpu_ptr(blkg->stats_cpu, i);
- stats_cpu->sectors = 0;
- for(j = 0; j < BLKIO_STAT_CPU_NR; j++)
- for (k = 0; k < BLKIO_STAT_TOTAL; k++)
- stats_cpu->stat_arr_cpu[j][k] = 0;
- }
+ call_rcu(&blkg->rcu_head, blkg_rcu_free);
}
+EXPORT_SYMBOL_GPL(__blkg_release);
-static int
-blkiocg_reset_stats(struct cgroup *cgroup, struct cftype *cftype, u64 val)
+static int blkcg_reset_stats(struct cgroup *cgroup, struct cftype *cftype,
+ u64 val)
{
- struct blkio_cgroup *blkcg;
- struct blkio_group *blkg;
- struct blkio_group_stats *stats;
+ struct blkcg *blkcg = cgroup_to_blkcg(cgroup);
+ struct blkcg_gq *blkg;
struct hlist_node *n;
- uint64_t queued[BLKIO_STAT_TOTAL];
int i;
-#ifdef CONFIG_DEBUG_BLK_CGROUP
- bool idling, waiting, empty;
- unsigned long long now = sched_clock();
-#endif
- blkcg = cgroup_to_blkio_cgroup(cgroup);
+ mutex_lock(&blkcg_pol_mutex);
spin_lock_irq(&blkcg->lock);
- hlist_for_each_entry(blkg, n, &blkcg->blkg_list, blkcg_node) {
- spin_lock(&blkg->stats_lock);
- stats = &blkg->stats;
-#ifdef CONFIG_DEBUG_BLK_CGROUP
- idling = blkio_blkg_idling(stats);
- waiting = blkio_blkg_waiting(stats);
- empty = blkio_blkg_empty(stats);
-#endif
- for (i = 0; i < BLKIO_STAT_TOTAL; i++)
- queued[i] = stats->stat_arr[BLKIO_STAT_QUEUED][i];
- memset(stats, 0, sizeof(struct blkio_group_stats));
- for (i = 0; i < BLKIO_STAT_TOTAL; i++)
- stats->stat_arr[BLKIO_STAT_QUEUED][i] = queued[i];
-#ifdef CONFIG_DEBUG_BLK_CGROUP
- if (idling) {
- blkio_mark_blkg_idling(stats);
- stats->start_idle_time = now;
- }
- if (waiting) {
- blkio_mark_blkg_waiting(stats);
- stats->start_group_wait_time = now;
- }
- if (empty) {
- blkio_mark_blkg_empty(stats);
- stats->start_empty_time = now;
- }
-#endif
- spin_unlock(&blkg->stats_lock);
-
- /* Reset Per cpu stats which don't take blkg->stats_lock */
- blkio_reset_stats_cpu(blkg);
- }
-
- spin_unlock_irq(&blkcg->lock);
- return 0;
-}
-
-static void blkio_get_key_name(enum stat_sub_type type, dev_t dev, char *str,
- int chars_left, bool diskname_only)
-{
- snprintf(str, chars_left, "%d:%d", MAJOR(dev), MINOR(dev));
- chars_left -= strlen(str);
- if (chars_left <= 0) {
- printk(KERN_WARNING
- "Possibly incorrect cgroup stat display format");
- return;
- }
- if (diskname_only)
- return;
- switch (type) {
- case BLKIO_STAT_READ:
- strlcat(str, " Read", chars_left);
- break;
- case BLKIO_STAT_WRITE:
- strlcat(str, " Write", chars_left);
- break;
- case BLKIO_STAT_SYNC:
- strlcat(str, " Sync", chars_left);
- break;
- case BLKIO_STAT_ASYNC:
- strlcat(str, " Async", chars_left);
- break;
- case BLKIO_STAT_TOTAL:
- strlcat(str, " Total", chars_left);
- break;
- default:
- strlcat(str, " Invalid", chars_left);
- }
-}
-
-static uint64_t blkio_fill_stat(char *str, int chars_left, uint64_t val,
- struct cgroup_map_cb *cb, dev_t dev)
-{
- blkio_get_key_name(0, dev, str, chars_left, true);
- cb->fill(cb, str, val);
- return val;
-}
-
-
-static uint64_t blkio_read_stat_cpu(struct blkio_group *blkg,
- enum stat_type_cpu type, enum stat_sub_type sub_type)
-{
- int cpu;
- struct blkio_group_stats_cpu *stats_cpu;
- u64 val = 0, tval;
-
- for_each_possible_cpu(cpu) {
- unsigned int start;
- stats_cpu = per_cpu_ptr(blkg->stats_cpu, cpu);
-
- do {
- start = u64_stats_fetch_begin(&stats_cpu->syncp);
- if (type == BLKIO_STAT_CPU_SECTORS)
- tval = stats_cpu->sectors;
- else
- tval = stats_cpu->stat_arr_cpu[type][sub_type];
- } while(u64_stats_fetch_retry(&stats_cpu->syncp, start));
-
- val += tval;
- }
-
- return val;
-}
-
-static uint64_t blkio_get_stat_cpu(struct blkio_group *blkg,
- struct cgroup_map_cb *cb, dev_t dev, enum stat_type_cpu type)
-{
- uint64_t disk_total, val;
- char key_str[MAX_KEY_LEN];
- enum stat_sub_type sub_type;
- if (type == BLKIO_STAT_CPU_SECTORS) {
- val = blkio_read_stat_cpu(blkg, type, 0);
- return blkio_fill_stat(key_str, MAX_KEY_LEN - 1, val, cb, dev);
- }
-
- for (sub_type = BLKIO_STAT_READ; sub_type < BLKIO_STAT_TOTAL;
- sub_type++) {
- blkio_get_key_name(sub_type, dev, key_str, MAX_KEY_LEN, false);
- val = blkio_read_stat_cpu(blkg, type, sub_type);
- cb->fill(cb, key_str, val);
- }
-
- disk_total = blkio_read_stat_cpu(blkg, type, BLKIO_STAT_READ) +
- blkio_read_stat_cpu(blkg, type, BLKIO_STAT_WRITE);
-
- blkio_get_key_name(BLKIO_STAT_TOTAL, dev, key_str, MAX_KEY_LEN, false);
- cb->fill(cb, key_str, disk_total);
- return disk_total;
-}
-
-/* This should be called with blkg->stats_lock held */
-static uint64_t blkio_get_stat(struct blkio_group *blkg,
- struct cgroup_map_cb *cb, dev_t dev, enum stat_type type)
-{
- uint64_t disk_total;
- char key_str[MAX_KEY_LEN];
- enum stat_sub_type sub_type;
-
- if (type == BLKIO_STAT_TIME)
- return blkio_fill_stat(key_str, MAX_KEY_LEN - 1,
- blkg->stats.time, cb, dev);
-#ifdef CONFIG_DEBUG_BLK_CGROUP
- if (type == BLKIO_STAT_UNACCOUNTED_TIME)
- return blkio_fill_stat(key_str, MAX_KEY_LEN - 1,
- blkg->stats.unaccounted_time, cb, dev);
- if (type == BLKIO_STAT_AVG_QUEUE_SIZE) {
- uint64_t sum = blkg->stats.avg_queue_size_sum;
- uint64_t samples = blkg->stats.avg_queue_size_samples;
- if (samples)
- do_div(sum, samples);
- else
- sum = 0;
- return blkio_fill_stat(key_str, MAX_KEY_LEN - 1, sum, cb, dev);
- }
- if (type == BLKIO_STAT_GROUP_WAIT_TIME)
- return blkio_fill_stat(key_str, MAX_KEY_LEN - 1,
- blkg->stats.group_wait_time, cb, dev);
- if (type == BLKIO_STAT_IDLE_TIME)
- return blkio_fill_stat(key_str, MAX_KEY_LEN - 1,
- blkg->stats.idle_time, cb, dev);
- if (type == BLKIO_STAT_EMPTY_TIME)
- return blkio_fill_stat(key_str, MAX_KEY_LEN - 1,
- blkg->stats.empty_time, cb, dev);
- if (type == BLKIO_STAT_DEQUEUE)
- return blkio_fill_stat(key_str, MAX_KEY_LEN - 1,
- blkg->stats.dequeue, cb, dev);
-#endif
-
- for (sub_type = BLKIO_STAT_READ; sub_type < BLKIO_STAT_TOTAL;
- sub_type++) {
- blkio_get_key_name(sub_type, dev, key_str, MAX_KEY_LEN, false);
- cb->fill(cb, key_str, blkg->stats.stat_arr[type][sub_type]);
- }
- disk_total = blkg->stats.stat_arr[type][BLKIO_STAT_READ] +
- blkg->stats.stat_arr[type][BLKIO_STAT_WRITE];
- blkio_get_key_name(BLKIO_STAT_TOTAL, dev, key_str, MAX_KEY_LEN, false);
- cb->fill(cb, key_str, disk_total);
- return disk_total;
-}
-
-static int blkio_policy_parse_and_set(char *buf,
- struct blkio_policy_node *newpn, enum blkio_policy_id plid, int fileid)
-{
- struct gendisk *disk = NULL;
- char *s[4], *p, *major_s = NULL, *minor_s = NULL;
- unsigned long major, minor;
- int i = 0, ret = -EINVAL;
- int part;
- dev_t dev;
- u64 temp;
-
- memset(s, 0, sizeof(s));
-
- while ((p = strsep(&buf, " ")) != NULL) {
- if (!*p)
- continue;
-
- s[i++] = p;
-
- /* Prevent from inputing too many things */
- if (i == 3)
- break;
- }
-
- if (i != 2)
- goto out;
-
- p = strsep(&s[0], ":");
- if (p != NULL)
- major_s = p;
- else
- goto out;
-
- minor_s = s[0];
- if (!minor_s)
- goto out;
-
- if (strict_strtoul(major_s, 10, &major))
- goto out;
-
- if (strict_strtoul(minor_s, 10, &minor))
- goto out;
-
- dev = MKDEV(major, minor);
-
- if (strict_strtoull(s[1], 10, &temp))
- goto out;
-
- /* For rule removal, do not check for device presence. */
- if (temp) {
- disk = get_gendisk(dev, &part);
- if (!disk || part) {
- ret = -ENODEV;
- goto out;
- }
- }
-
- newpn->dev = dev;
-
- switch (plid) {
- case BLKIO_POLICY_PROP:
- if ((temp < BLKIO_WEIGHT_MIN && temp > 0) ||
- temp > BLKIO_WEIGHT_MAX)
- goto out;
-
- newpn->plid = plid;
- newpn->fileid = fileid;
- newpn->val.weight = temp;
- break;
- case BLKIO_POLICY_THROTL:
- switch(fileid) {
- case BLKIO_THROTL_read_bps_device:
- case BLKIO_THROTL_write_bps_device:
- newpn->plid = plid;
- newpn->fileid = fileid;
- newpn->val.bps = temp;
- break;
- case BLKIO_THROTL_read_iops_device:
- case BLKIO_THROTL_write_iops_device:
- if (temp > THROTL_IOPS_MAX)
- goto out;
-
- newpn->plid = plid;
- newpn->fileid = fileid;
- newpn->val.iops = (unsigned int)temp;
- break;
- }
- break;
- default:
- BUG();
- }
- ret = 0;
-out:
- put_disk(disk);
- return ret;
-}
-
-unsigned int blkcg_get_weight(struct blkio_cgroup *blkcg,
- dev_t dev)
-{
- struct blkio_policy_node *pn;
- unsigned long flags;
- unsigned int weight;
-
- spin_lock_irqsave(&blkcg->lock, flags);
-
- pn = blkio_policy_search_node(blkcg, dev, BLKIO_POLICY_PROP,
- BLKIO_PROP_weight_device);
- if (pn)
- weight = pn->val.weight;
- else
- weight = blkcg->weight;
-
- spin_unlock_irqrestore(&blkcg->lock, flags);
-
- return weight;
-}
-EXPORT_SYMBOL_GPL(blkcg_get_weight);
-
-uint64_t blkcg_get_read_bps(struct blkio_cgroup *blkcg, dev_t dev)
-{
- struct blkio_policy_node *pn;
- unsigned long flags;
- uint64_t bps = -1;
-
- spin_lock_irqsave(&blkcg->lock, flags);
- pn = blkio_policy_search_node(blkcg, dev, BLKIO_POLICY_THROTL,
- BLKIO_THROTL_read_bps_device);
- if (pn)
- bps = pn->val.bps;
- spin_unlock_irqrestore(&blkcg->lock, flags);
-
- return bps;
-}
-
-uint64_t blkcg_get_write_bps(struct blkio_cgroup *blkcg, dev_t dev)
-{
- struct blkio_policy_node *pn;
- unsigned long flags;
- uint64_t bps = -1;
-
- spin_lock_irqsave(&blkcg->lock, flags);
- pn = blkio_policy_search_node(blkcg, dev, BLKIO_POLICY_THROTL,
- BLKIO_THROTL_write_bps_device);
- if (pn)
- bps = pn->val.bps;
- spin_unlock_irqrestore(&blkcg->lock, flags);
-
- return bps;
-}
-
-unsigned int blkcg_get_read_iops(struct blkio_cgroup *blkcg, dev_t dev)
-{
- struct blkio_policy_node *pn;
- unsigned long flags;
- unsigned int iops = -1;
-
- spin_lock_irqsave(&blkcg->lock, flags);
- pn = blkio_policy_search_node(blkcg, dev, BLKIO_POLICY_THROTL,
- BLKIO_THROTL_read_iops_device);
- if (pn)
- iops = pn->val.iops;
- spin_unlock_irqrestore(&blkcg->lock, flags);
-
- return iops;
-}
-
-unsigned int blkcg_get_write_iops(struct blkio_cgroup *blkcg, dev_t dev)
-{
- struct blkio_policy_node *pn;
- unsigned long flags;
- unsigned int iops = -1;
-
- spin_lock_irqsave(&blkcg->lock, flags);
- pn = blkio_policy_search_node(blkcg, dev, BLKIO_POLICY_THROTL,
- BLKIO_THROTL_write_iops_device);
- if (pn)
- iops = pn->val.iops;
- spin_unlock_irqrestore(&blkcg->lock, flags);
-
- return iops;
-}
+ /*
+ * Note that stat reset is racy - it doesn't synchronize against
+ * stat updates. This is a debug feature which shouldn't exist
+ * anyway. If you get hit by a race, retry.
+ */
+ hlist_for_each_entry(blkg, n, &blkcg->blkg_list, blkcg_node) {
+ for (i = 0; i < BLKCG_MAX_POLS; i++) {
+ struct blkcg_policy *pol = blkcg_policy[i];
-/* Checks whether user asked for deleting a policy rule */
-static bool blkio_delete_rule_command(struct blkio_policy_node *pn)
-{
- switch(pn->plid) {
- case BLKIO_POLICY_PROP:
- if (pn->val.weight == 0)
- return 1;
- break;
- case BLKIO_POLICY_THROTL:
- switch(pn->fileid) {
- case BLKIO_THROTL_read_bps_device:
- case BLKIO_THROTL_write_bps_device:
- if (pn->val.bps == 0)
- return 1;
- break;
- case BLKIO_THROTL_read_iops_device:
- case BLKIO_THROTL_write_iops_device:
- if (pn->val.iops == 0)
- return 1;
+ if (blkcg_policy_enabled(blkg->q, pol) &&
+ pol->pd_reset_stats_fn)
+ pol->pd_reset_stats_fn(blkg);
}
- break;
- default:
- BUG();
}
+ spin_unlock_irq(&blkcg->lock);
+ mutex_unlock(&blkcg_pol_mutex);
return 0;
}
-static void blkio_update_policy_rule(struct blkio_policy_node *oldpn,
- struct blkio_policy_node *newpn)
-{
- switch(oldpn->plid) {
- case BLKIO_POLICY_PROP:
- oldpn->val.weight = newpn->val.weight;
- break;
- case BLKIO_POLICY_THROTL:
- switch(newpn->fileid) {
- case BLKIO_THROTL_read_bps_device:
- case BLKIO_THROTL_write_bps_device:
- oldpn->val.bps = newpn->val.bps;
- break;
- case BLKIO_THROTL_read_iops_device:
- case BLKIO_THROTL_write_iops_device:
- oldpn->val.iops = newpn->val.iops;
- }
- break;
- default:
- BUG();
- }
-}
-
-/*
- * Some rules/values in blkg have changed. Propagate those to respective
- * policies.
- */
-static void blkio_update_blkg_policy(struct blkio_cgroup *blkcg,
- struct blkio_group *blkg, struct blkio_policy_node *pn)
+static const char *blkg_dev_name(struct blkcg_gq *blkg)
{
- unsigned int weight, iops;
- u64 bps;
-
- switch(pn->plid) {
- case BLKIO_POLICY_PROP:
- weight = pn->val.weight ? pn->val.weight :
- blkcg->weight;
- blkio_update_group_weight(blkg, weight);
- break;
- case BLKIO_POLICY_THROTL:
- switch(pn->fileid) {
- case BLKIO_THROTL_read_bps_device:
- case BLKIO_THROTL_write_bps_device:
- bps = pn->val.bps ? pn->val.bps : (-1);
- blkio_update_group_bps(blkg, bps, pn->fileid);
- break;
- case BLKIO_THROTL_read_iops_device:
- case BLKIO_THROTL_write_iops_device:
- iops = pn->val.iops ? pn->val.iops : (-1);
- blkio_update_group_iops(blkg, iops, pn->fileid);
- break;
- }
- break;
- default:
- BUG();
- }
+ /* some drivers (floppy) instantiate a queue w/o disk registered */
+ if (blkg->q->backing_dev_info.dev)
+ return dev_name(blkg->q->backing_dev_info.dev);
+ return NULL;
}
-/*
- * A policy node rule has been updated. Propagate this update to all the
- * block groups which might be affected by this update.
+/**
+ * blkcg_print_blkgs - helper for printing per-blkg data
+ * @sf: seq_file to print to
+ * @blkcg: blkcg of interest
+ * @prfill: fill function to print out a blkg
+ * @pol: policy in question
+ * @data: data to be passed to @prfill
+ * @show_total: to print out sum of prfill return values or not
+ *
+ * This function invokes @prfill on each blkg of @blkcg if pd for the
+ * policy specified by @pol exists. @prfill is invoked with @sf, the
+ * policy data and @data. If @show_total is %true, the sum of the return
+ * values from @prfill is printed with "Total" label at the end.
+ *
+ * This is to be used to construct print functions for
+ * cftype->read_seq_string method.
*/
-static void blkio_update_policy_node_blkg(struct blkio_cgroup *blkcg,
- struct blkio_policy_node *pn)
+void blkcg_print_blkgs(struct seq_file *sf, struct blkcg *blkcg,
+ u64 (*prfill)(struct seq_file *,
+ struct blkg_policy_data *, int),
+ const struct blkcg_policy *pol, int data,
+ bool show_total)
{
- struct blkio_group *blkg;
+ struct blkcg_gq *blkg;
struct hlist_node *n;
+ u64 total = 0;
- spin_lock(&blkio_list_lock);
spin_lock_irq(&blkcg->lock);
-
- hlist_for_each_entry(blkg, n, &blkcg->blkg_list, blkcg_node) {
- if (pn->dev != blkg->dev || pn->plid != blkg->plid)
- continue;
- blkio_update_blkg_policy(blkcg, blkg, pn);
- }
-
+ hlist_for_each_entry(blkg, n, &blkcg->blkg_list, blkcg_node)
+ if (blkcg_policy_enabled(blkg->q, pol))
+ total += prfill(sf, blkg->pd[pol->plid], data);
spin_unlock_irq(&blkcg->lock);
- spin_unlock(&blkio_list_lock);
+
+ if (show_total)
+ seq_printf(sf, "Total %llu\n", (unsigned long long)total);
}
+EXPORT_SYMBOL_GPL(blkcg_print_blkgs);
-static int blkiocg_file_write(struct cgroup *cgrp, struct cftype *cft,
- const char *buffer)
+/**
+ * __blkg_prfill_u64 - prfill helper for a single u64 value
+ * @sf: seq_file to print to
+ * @pd: policy private data of interest
+ * @v: value to print
+ *
+ * Print @v to @sf for the device assocaited with @pd.
+ */
+u64 __blkg_prfill_u64(struct seq_file *sf, struct blkg_policy_data *pd, u64 v)
{
- int ret = 0;
- char *buf;
- struct blkio_policy_node *newpn, *pn;
- struct blkio_cgroup *blkcg;
- int keep_newpn = 0;
- enum blkio_policy_id plid = BLKIOFILE_POLICY(cft->private);
- int fileid = BLKIOFILE_ATTR(cft->private);
-
- buf = kstrdup(buffer, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- newpn = kzalloc(sizeof(*newpn), GFP_KERNEL);
- if (!newpn) {
- ret = -ENOMEM;
- goto free_buf;
- }
-
- ret = blkio_policy_parse_and_set(buf, newpn, plid, fileid);
- if (ret)
- goto free_newpn;
-
- blkcg = cgroup_to_blkio_cgroup(cgrp);
-
- spin_lock_irq(&blkcg->lock);
-
- pn = blkio_policy_search_node(blkcg, newpn->dev, plid, fileid);
- if (!pn) {
- if (!blkio_delete_rule_command(newpn)) {
- blkio_policy_insert_node(blkcg, newpn);
- keep_newpn = 1;
- }
- spin_unlock_irq(&blkcg->lock);
- goto update_io_group;
- }
-
- if (blkio_delete_rule_command(newpn)) {
- blkio_policy_delete_node(pn);
- kfree(pn);
- spin_unlock_irq(&blkcg->lock);
- goto update_io_group;
- }
- spin_unlock_irq(&blkcg->lock);
+ const char *dname = blkg_dev_name(pd->blkg);
- blkio_update_policy_rule(pn, newpn);
+ if (!dname)
+ return 0;
-update_io_group:
- blkio_update_policy_node_blkg(blkcg, newpn);
-
-free_newpn:
- if (!keep_newpn)
- kfree(newpn);
-free_buf:
- kfree(buf);
- return ret;
+ seq_printf(sf, "%s %llu\n", dname, (unsigned long long)v);
+ return v;
}
+EXPORT_SYMBOL_GPL(__blkg_prfill_u64);
-static void
-blkio_print_policy_node(struct seq_file *m, struct blkio_policy_node *pn)
-{
- switch(pn->plid) {
- case BLKIO_POLICY_PROP:
- if (pn->fileid == BLKIO_PROP_weight_device)
- seq_printf(m, "%u:%u\t%u\n", MAJOR(pn->dev),
- MINOR(pn->dev), pn->val.weight);
- break;
- case BLKIO_POLICY_THROTL:
- switch(pn->fileid) {
- case BLKIO_THROTL_read_bps_device:
- case BLKIO_THROTL_write_bps_device:
- seq_printf(m, "%u:%u\t%llu\n", MAJOR(pn->dev),
- MINOR(pn->dev), pn->val.bps);
- break;
- case BLKIO_THROTL_read_iops_device:
- case BLKIO_THROTL_write_iops_device:
- seq_printf(m, "%u:%u\t%u\n", MAJOR(pn->dev),
- MINOR(pn->dev), pn->val.iops);
- break;
- }
- break;
- default:
- BUG();
- }
-}
+/**
+ * __blkg_prfill_rwstat - prfill helper for a blkg_rwstat
+ * @sf: seq_file to print to
+ * @pd: policy private data of interest
+ * @rwstat: rwstat to print
+ *
+ * Print @rwstat to @sf for the device assocaited with @pd.
+ */
+u64 __blkg_prfill_rwstat(struct seq_file *sf, struct blkg_policy_data *pd,
+ const struct blkg_rwstat *rwstat)
+{
+ static const char *rwstr[] = {
+ [BLKG_RWSTAT_READ] = "Read",
+ [BLKG_RWSTAT_WRITE] = "Write",
+ [BLKG_RWSTAT_SYNC] = "Sync",
+ [BLKG_RWSTAT_ASYNC] = "Async",
+ };
+ const char *dname = blkg_dev_name(pd->blkg);
+ u64 v;
+ int i;
-/* cgroup files which read their data from policy nodes end up here */
-static void blkio_read_policy_node_files(struct cftype *cft,
- struct blkio_cgroup *blkcg, struct seq_file *m)
-{
- struct blkio_policy_node *pn;
-
- if (!list_empty(&blkcg->policy_list)) {
- spin_lock_irq(&blkcg->lock);
- list_for_each_entry(pn, &blkcg->policy_list, node) {
- if (!pn_matches_cftype(cft, pn))
- continue;
- blkio_print_policy_node(m, pn);
- }
- spin_unlock_irq(&blkcg->lock);
- }
-}
+ if (!dname)
+ return 0;
-static int blkiocg_file_read(struct cgroup *cgrp, struct cftype *cft,
- struct seq_file *m)
-{
- struct blkio_cgroup *blkcg;
- enum blkio_policy_id plid = BLKIOFILE_POLICY(cft->private);
- int name = BLKIOFILE_ATTR(cft->private);
-
- blkcg = cgroup_to_blkio_cgroup(cgrp);
-
- switch(plid) {
- case BLKIO_POLICY_PROP:
- switch(name) {
- case BLKIO_PROP_weight_device:
- blkio_read_policy_node_files(cft, blkcg, m);
- return 0;
- default:
- BUG();
- }
- break;
- case BLKIO_POLICY_THROTL:
- switch(name){
- case BLKIO_THROTL_read_bps_device:
- case BLKIO_THROTL_write_bps_device:
- case BLKIO_THROTL_read_iops_device:
- case BLKIO_THROTL_write_iops_device:
- blkio_read_policy_node_files(cft, blkcg, m);
- return 0;
- default:
- BUG();
- }
- break;
- default:
- BUG();
- }
+ for (i = 0; i < BLKG_RWSTAT_NR; i++)
+ seq_printf(sf, "%s %s %llu\n", dname, rwstr[i],
+ (unsigned long long)rwstat->cnt[i]);
- return 0;
+ v = rwstat->cnt[BLKG_RWSTAT_READ] + rwstat->cnt[BLKG_RWSTAT_WRITE];
+ seq_printf(sf, "%s Total %llu\n", dname, (unsigned long long)v);
+ return v;
}
-static int blkio_read_blkg_stats(struct blkio_cgroup *blkcg,
- struct cftype *cft, struct cgroup_map_cb *cb,
- enum stat_type type, bool show_total, bool pcpu)
+/**
+ * blkg_prfill_stat - prfill callback for blkg_stat
+ * @sf: seq_file to print to
+ * @pd: policy private data of interest
+ * @off: offset to the blkg_stat in @pd
+ *
+ * prfill callback for printing a blkg_stat.
+ */
+u64 blkg_prfill_stat(struct seq_file *sf, struct blkg_policy_data *pd, int off)
{
- struct blkio_group *blkg;
- struct hlist_node *n;
- uint64_t cgroup_total = 0;
-
- rcu_read_lock();
- hlist_for_each_entry_rcu(blkg, n, &blkcg->blkg_list, blkcg_node) {
- if (blkg->dev) {
- if (!cftype_blkg_same_policy(cft, blkg))
- continue;
- if (pcpu)
- cgroup_total += blkio_get_stat_cpu(blkg, cb,
- blkg->dev, type);
- else {
- spin_lock_irq(&blkg->stats_lock);
- cgroup_total += blkio_get_stat(blkg, cb,
- blkg->dev, type);
- spin_unlock_irq(&blkg->stats_lock);
- }
- }
- }
- if (show_total)
- cb->fill(cb, "Total", cgroup_total);
- rcu_read_unlock();
- return 0;
+ return __blkg_prfill_u64(sf, pd, blkg_stat_read((void *)pd + off));
}
+EXPORT_SYMBOL_GPL(blkg_prfill_stat);
-/* All map kind of cgroup file get serviced by this function */
-static int blkiocg_file_read_map(struct cgroup *cgrp, struct cftype *cft,
- struct cgroup_map_cb *cb)
+/**
+ * blkg_prfill_rwstat - prfill callback for blkg_rwstat
+ * @sf: seq_file to print to
+ * @pd: policy private data of interest
+ * @off: offset to the blkg_rwstat in @pd
+ *
+ * prfill callback for printing a blkg_rwstat.
+ */
+u64 blkg_prfill_rwstat(struct seq_file *sf, struct blkg_policy_data *pd,
+ int off)
{
- struct blkio_cgroup *blkcg;
- enum blkio_policy_id plid = BLKIOFILE_POLICY(cft->private);
- int name = BLKIOFILE_ATTR(cft->private);
-
- blkcg = cgroup_to_blkio_cgroup(cgrp);
-
- switch(plid) {
- case BLKIO_POLICY_PROP:
- switch(name) {
- case BLKIO_PROP_time:
- return blkio_read_blkg_stats(blkcg, cft, cb,
- BLKIO_STAT_TIME, 0, 0);
- case BLKIO_PROP_sectors:
- return blkio_read_blkg_stats(blkcg, cft, cb,
- BLKIO_STAT_CPU_SECTORS, 0, 1);
- case BLKIO_PROP_io_service_bytes:
- return blkio_read_blkg_stats(blkcg, cft, cb,
- BLKIO_STAT_CPU_SERVICE_BYTES, 1, 1);
- case BLKIO_PROP_io_serviced:
- return blkio_read_blkg_stats(blkcg, cft, cb,
- BLKIO_STAT_CPU_SERVICED, 1, 1);
- case BLKIO_PROP_io_service_time:
- return blkio_read_blkg_stats(blkcg, cft, cb,
- BLKIO_STAT_SERVICE_TIME, 1, 0);
- case BLKIO_PROP_io_wait_time:
- return blkio_read_blkg_stats(blkcg, cft, cb,
- BLKIO_STAT_WAIT_TIME, 1, 0);
- case BLKIO_PROP_io_merged:
- return blkio_read_blkg_stats(blkcg, cft, cb,
- BLKIO_STAT_CPU_MERGED, 1, 1);
- case BLKIO_PROP_io_queued:
- return blkio_read_blkg_stats(blkcg, cft, cb,
- BLKIO_STAT_QUEUED, 1, 0);
-#ifdef CONFIG_DEBUG_BLK_CGROUP
- case BLKIO_PROP_unaccounted_time:
- return blkio_read_blkg_stats(blkcg, cft, cb,
- BLKIO_STAT_UNACCOUNTED_TIME, 0, 0);
- case BLKIO_PROP_dequeue:
- return blkio_read_blkg_stats(blkcg, cft, cb,
- BLKIO_STAT_DEQUEUE, 0, 0);
- case BLKIO_PROP_avg_queue_size:
- return blkio_read_blkg_stats(blkcg, cft, cb,
- BLKIO_STAT_AVG_QUEUE_SIZE, 0, 0);
- case BLKIO_PROP_group_wait_time:
- return blkio_read_blkg_stats(blkcg, cft, cb,
- BLKIO_STAT_GROUP_WAIT_TIME, 0, 0);
- case BLKIO_PROP_idle_time:
- return blkio_read_blkg_stats(blkcg, cft, cb,
- BLKIO_STAT_IDLE_TIME, 0, 0);
- case BLKIO_PROP_empty_time:
- return blkio_read_blkg_stats(blkcg, cft, cb,
- BLKIO_STAT_EMPTY_TIME, 0, 0);
-#endif
- default:
- BUG();
- }
- break;
- case BLKIO_POLICY_THROTL:
- switch(name){
- case BLKIO_THROTL_io_service_bytes:
- return blkio_read_blkg_stats(blkcg, cft, cb,
- BLKIO_STAT_CPU_SERVICE_BYTES, 1, 1);
- case BLKIO_THROTL_io_serviced:
- return blkio_read_blkg_stats(blkcg, cft, cb,
- BLKIO_STAT_CPU_SERVICED, 1, 1);
- default:
- BUG();
- }
- break;
- default:
- BUG();
- }
+ struct blkg_rwstat rwstat = blkg_rwstat_read((void *)pd + off);
- return 0;
+ return __blkg_prfill_rwstat(sf, pd, &rwstat);
}
+EXPORT_SYMBOL_GPL(blkg_prfill_rwstat);
-static int blkio_weight_write(struct blkio_cgroup *blkcg, u64 val)
+/**
+ * blkg_conf_prep - parse and prepare for per-blkg config update
+ * @blkcg: target block cgroup
+ * @pol: target policy
+ * @input: input string
+ * @ctx: blkg_conf_ctx to be filled
+ *
+ * Parse per-blkg config update from @input and initialize @ctx with the
+ * result. @ctx->blkg points to the blkg to be updated and @ctx->v the new
+ * value. This function returns with RCU read lock and queue lock held and
+ * must be paired with blkg_conf_finish().
+ */
+int blkg_conf_prep(struct blkcg *blkcg, const struct blkcg_policy *pol,
+ const char *input, struct blkg_conf_ctx *ctx)
+ __acquires(rcu) __acquires(disk->queue->queue_lock)
{
- struct blkio_group *blkg;
- struct hlist_node *n;
- struct blkio_policy_node *pn;
+ struct gendisk *disk;
+ struct blkcg_gq *blkg;
+ unsigned int major, minor;
+ unsigned long long v;
+ int part, ret;
- if (val < BLKIO_WEIGHT_MIN || val > BLKIO_WEIGHT_MAX)
+ if (sscanf(input, "%u:%u %llu", &major, &minor, &v) != 3)
return -EINVAL;
- spin_lock(&blkio_list_lock);
- spin_lock_irq(&blkcg->lock);
- blkcg->weight = (unsigned int)val;
-
- hlist_for_each_entry(blkg, n, &blkcg->blkg_list, blkcg_node) {
- pn = blkio_policy_search_node(blkcg, blkg->dev,
- BLKIO_POLICY_PROP, BLKIO_PROP_weight_device);
- if (pn)
- continue;
-
- blkio_update_group_weight(blkg, blkcg->weight);
- }
- spin_unlock_irq(&blkcg->lock);
- spin_unlock(&blkio_list_lock);
- return 0;
-}
+ disk = get_gendisk(MKDEV(major, minor), &part);
+ if (!disk || part)
+ return -EINVAL;
-static u64 blkiocg_file_read_u64 (struct cgroup *cgrp, struct cftype *cft) {
- struct blkio_cgroup *blkcg;
- enum blkio_policy_id plid = BLKIOFILE_POLICY(cft->private);
- int name = BLKIOFILE_ATTR(cft->private);
+ rcu_read_lock();
+ spin_lock_irq(disk->queue->queue_lock);
- blkcg = cgroup_to_blkio_cgroup(cgrp);
+ if (blkcg_policy_enabled(disk->queue, pol))
+ blkg = blkg_lookup_create(blkcg, disk->queue);
+ else
+ blkg = ERR_PTR(-EINVAL);
- switch(plid) {
- case BLKIO_POLICY_PROP:
- switch(name) {
- case BLKIO_PROP_weight:
- return (u64)blkcg->weight;
+ if (IS_ERR(blkg)) {
+ ret = PTR_ERR(blkg);
+ rcu_read_unlock();
+ spin_unlock_irq(disk->queue->queue_lock);
+ put_disk(disk);
+ /*
+ * If queue was bypassing, we should retry. Do so after a
+ * short msleep(). It isn't strictly necessary but queue
+ * can be bypassing for some time and it's always nice to
+ * avoid busy looping.
+ */
+ if (ret == -EBUSY) {
+ msleep(10);
+ ret = restart_syscall();
}
- break;
- default:
- BUG();
+ return ret;
}
+
+ ctx->disk = disk;
+ ctx->blkg = blkg;
+ ctx->v = v;
return 0;
}
+EXPORT_SYMBOL_GPL(blkg_conf_prep);
-static int
-blkiocg_file_write_u64(struct cgroup *cgrp, struct cftype *cft, u64 val)
+/**
+ * blkg_conf_finish - finish up per-blkg config update
+ * @ctx: blkg_conf_ctx intiailized by blkg_conf_prep()
+ *
+ * Finish up after per-blkg config update. This function must be paired
+ * with blkg_conf_prep().
+ */
+void blkg_conf_finish(struct blkg_conf_ctx *ctx)
+ __releases(ctx->disk->queue->queue_lock) __releases(rcu)
{
- struct blkio_cgroup *blkcg;
- enum blkio_policy_id plid = BLKIOFILE_POLICY(cft->private);
- int name = BLKIOFILE_ATTR(cft->private);
-
- blkcg = cgroup_to_blkio_cgroup(cgrp);
-
- switch(plid) {
- case BLKIO_POLICY_PROP:
- switch(name) {
- case BLKIO_PROP_weight:
- return blkio_weight_write(blkcg, val);
- }
- break;
- default:
- BUG();
- }
-
- return 0;
+ spin_unlock_irq(ctx->disk->queue->queue_lock);
+ rcu_read_unlock();
+ put_disk(ctx->disk);
}
+EXPORT_SYMBOL_GPL(blkg_conf_finish);
-struct cftype blkio_files[] = {
- {
- .name = "weight_device",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_PROP,
- BLKIO_PROP_weight_device),
- .read_seq_string = blkiocg_file_read,
- .write_string = blkiocg_file_write,
- .max_write_len = 256,
- },
- {
- .name = "weight",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_PROP,
- BLKIO_PROP_weight),
- .read_u64 = blkiocg_file_read_u64,
- .write_u64 = blkiocg_file_write_u64,
- },
- {
- .name = "time",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_PROP,
- BLKIO_PROP_time),
- .read_map = blkiocg_file_read_map,
- },
- {
- .name = "sectors",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_PROP,
- BLKIO_PROP_sectors),
- .read_map = blkiocg_file_read_map,
- },
- {
- .name = "io_service_bytes",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_PROP,
- BLKIO_PROP_io_service_bytes),
- .read_map = blkiocg_file_read_map,
- },
- {
- .name = "io_serviced",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_PROP,
- BLKIO_PROP_io_serviced),
- .read_map = blkiocg_file_read_map,
- },
- {
- .name = "io_service_time",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_PROP,
- BLKIO_PROP_io_service_time),
- .read_map = blkiocg_file_read_map,
- },
- {
- .name = "io_wait_time",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_PROP,
- BLKIO_PROP_io_wait_time),
- .read_map = blkiocg_file_read_map,
- },
- {
- .name = "io_merged",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_PROP,
- BLKIO_PROP_io_merged),
- .read_map = blkiocg_file_read_map,
- },
- {
- .name = "io_queued",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_PROP,
- BLKIO_PROP_io_queued),
- .read_map = blkiocg_file_read_map,
- },
+struct cftype blkcg_files[] = {
{
.name = "reset_stats",
- .write_u64 = blkiocg_reset_stats,
- },
-#ifdef CONFIG_BLK_DEV_THROTTLING
- {
- .name = "throttle.read_bps_device",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_THROTL,
- BLKIO_THROTL_read_bps_device),
- .read_seq_string = blkiocg_file_read,
- .write_string = blkiocg_file_write,
- .max_write_len = 256,
- },
-
- {
- .name = "throttle.write_bps_device",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_THROTL,
- BLKIO_THROTL_write_bps_device),
- .read_seq_string = blkiocg_file_read,
- .write_string = blkiocg_file_write,
- .max_write_len = 256,
- },
-
- {
- .name = "throttle.read_iops_device",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_THROTL,
- BLKIO_THROTL_read_iops_device),
- .read_seq_string = blkiocg_file_read,
- .write_string = blkiocg_file_write,
- .max_write_len = 256,
- },
-
- {
- .name = "throttle.write_iops_device",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_THROTL,
- BLKIO_THROTL_write_iops_device),
- .read_seq_string = blkiocg_file_read,
- .write_string = blkiocg_file_write,
- .max_write_len = 256,
- },
- {
- .name = "throttle.io_service_bytes",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_THROTL,
- BLKIO_THROTL_io_service_bytes),
- .read_map = blkiocg_file_read_map,
- },
- {
- .name = "throttle.io_serviced",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_THROTL,
- BLKIO_THROTL_io_serviced),
- .read_map = blkiocg_file_read_map,
- },
-#endif /* CONFIG_BLK_DEV_THROTTLING */
-
-#ifdef CONFIG_DEBUG_BLK_CGROUP
- {
- .name = "avg_queue_size",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_PROP,
- BLKIO_PROP_avg_queue_size),
- .read_map = blkiocg_file_read_map,
+ .write_u64 = blkcg_reset_stats,
},
- {
- .name = "group_wait_time",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_PROP,
- BLKIO_PROP_group_wait_time),
- .read_map = blkiocg_file_read_map,
- },
- {
- .name = "idle_time",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_PROP,
- BLKIO_PROP_idle_time),
- .read_map = blkiocg_file_read_map,
- },
- {
- .name = "empty_time",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_PROP,
- BLKIO_PROP_empty_time),
- .read_map = blkiocg_file_read_map,
- },
- {
- .name = "dequeue",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_PROP,
- BLKIO_PROP_dequeue),
- .read_map = blkiocg_file_read_map,
- },
- {
- .name = "unaccounted_time",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_PROP,
- BLKIO_PROP_unaccounted_time),
- .read_map = blkiocg_file_read_map,
- },
-#endif
{ } /* terminate */
};
-static void blkiocg_destroy(struct cgroup *cgroup)
+/**
+ * blkcg_pre_destroy - cgroup pre_destroy callback
+ * @cgroup: cgroup of interest
+ *
+ * This function is called when @cgroup is about to go away and responsible
+ * for shooting down all blkgs associated with @cgroup. blkgs should be
+ * removed while holding both q and blkcg locks. As blkcg lock is nested
+ * inside q lock, this function performs reverse double lock dancing.
+ *
+ * This is the blkcg counterpart of ioc_release_fn().
+ */
+static int blkcg_pre_destroy(struct cgroup *cgroup)
{
- struct blkio_cgroup *blkcg = cgroup_to_blkio_cgroup(cgroup);
- unsigned long flags;
- struct blkio_group *blkg;
- void *key;
- struct blkio_policy_type *blkiop;
- struct blkio_policy_node *pn, *pntmp;
+ struct blkcg *blkcg = cgroup_to_blkcg(cgroup);
- rcu_read_lock();
- do {
- spin_lock_irqsave(&blkcg->lock, flags);
+ spin_lock_irq(&blkcg->lock);
- if (hlist_empty(&blkcg->blkg_list)) {
- spin_unlock_irqrestore(&blkcg->lock, flags);
- break;
+ while (!hlist_empty(&blkcg->blkg_list)) {
+ struct blkcg_gq *blkg = hlist_entry(blkcg->blkg_list.first,
+ struct blkcg_gq, blkcg_node);
+ struct request_queue *q = blkg->q;
+
+ if (spin_trylock(q->queue_lock)) {
+ blkg_destroy(blkg);
+ spin_unlock(q->queue_lock);
+ } else {
+ spin_unlock_irq(&blkcg->lock);
+ cpu_relax();
+ spin_lock_irq(&blkcg->lock);
}
+ }
- blkg = hlist_entry(blkcg->blkg_list.first, struct blkio_group,
- blkcg_node);
- key = rcu_dereference(blkg->key);
- __blkiocg_del_blkio_group(blkg);
-
- spin_unlock_irqrestore(&blkcg->lock, flags);
-
- /*
- * This blkio_group is being unlinked as associated cgroup is
- * going away. Let all the IO controlling policies know about
- * this event.
- */
- spin_lock(&blkio_list_lock);
- list_for_each_entry(blkiop, &blkio_list, list) {
- if (blkiop->plid != blkg->plid)
- continue;
- blkiop->ops.blkio_unlink_group_fn(key, blkg);
- }
- spin_unlock(&blkio_list_lock);
- } while (1);
+ spin_unlock_irq(&blkcg->lock);
+ return 0;
+}
- list_for_each_entry_safe(pn, pntmp, &blkcg->policy_list, node) {
- blkio_policy_delete_node(pn);
- kfree(pn);
- }
+static void blkcg_destroy(struct cgroup *cgroup)
+{
+ struct blkcg *blkcg = cgroup_to_blkcg(cgroup);
- free_css_id(&blkio_subsys, &blkcg->css);
- rcu_read_unlock();
- if (blkcg != &blkio_root_cgroup)
+ if (blkcg != &blkcg_root)
kfree(blkcg);
}
-static struct cgroup_subsys_state *blkiocg_create(struct cgroup *cgroup)
+static struct cgroup_subsys_state *blkcg_create(struct cgroup *cgroup)
{
- struct blkio_cgroup *blkcg;
+ static atomic64_t id_seq = ATOMIC64_INIT(0);
+ struct blkcg *blkcg;
struct cgroup *parent = cgroup->parent;
if (!parent) {
- blkcg = &blkio_root_cgroup;
+ blkcg = &blkcg_root;
goto done;
}
if (!blkcg)
return ERR_PTR(-ENOMEM);
- blkcg->weight = BLKIO_WEIGHT_DEFAULT;
+ blkcg->cfq_weight = CFQ_WEIGHT_DEFAULT;
+ blkcg->id = atomic64_inc_return(&id_seq); /* root is 0, start from 1 */
done:
spin_lock_init(&blkcg->lock);
+ INIT_RADIX_TREE(&blkcg->blkg_tree, GFP_ATOMIC);
INIT_HLIST_HEAD(&blkcg->blkg_list);
- INIT_LIST_HEAD(&blkcg->policy_list);
return &blkcg->css;
}
+/**
+ * blkcg_init_queue - initialize blkcg part of request queue
+ * @q: request_queue to initialize
+ *
+ * Called from blk_alloc_queue_node(). Responsible for initializing blkcg
+ * part of new request_queue @q.
+ *
+ * RETURNS:
+ * 0 on success, -errno on failure.
+ */
+int blkcg_init_queue(struct request_queue *q)
+{
+ might_sleep();
+
+ return blk_throtl_init(q);
+}
+
+/**
+ * blkcg_drain_queue - drain blkcg part of request_queue
+ * @q: request_queue to drain
+ *
+ * Called from blk_drain_queue(). Responsible for draining blkcg part.
+ */
+void blkcg_drain_queue(struct request_queue *q)
+{
+ lockdep_assert_held(q->queue_lock);
+
+ blk_throtl_drain(q);
+}
+
+/**
+ * blkcg_exit_queue - exit and release blkcg part of request_queue
+ * @q: request_queue being released
+ *
+ * Called from blk_release_queue(). Responsible for exiting blkcg part.
+ */
+void blkcg_exit_queue(struct request_queue *q)
+{
+ spin_lock_irq(q->queue_lock);
+ blkg_destroy_all(q);
+ spin_unlock_irq(q->queue_lock);
+
+ blk_throtl_exit(q);
+}
+
/*
* We cannot support shared io contexts, as we have no mean to support
* two tasks with the same ioc in two different groups without major rework
* of the main cic data structures. For now we allow a task to change
* its cgroup only if it's the only owner of its ioc.
*/
-static int blkiocg_can_attach(struct cgroup *cgrp, struct cgroup_taskset *tset)
+static int blkcg_can_attach(struct cgroup *cgrp, struct cgroup_taskset *tset)
{
struct task_struct *task;
struct io_context *ioc;
return ret;
}
-static void blkiocg_attach(struct cgroup *cgrp, struct cgroup_taskset *tset)
-{
- struct task_struct *task;
- struct io_context *ioc;
-
- cgroup_taskset_for_each(task, cgrp, tset) {
- /* we don't lose anything even if ioc allocation fails */
- ioc = get_task_io_context(task, GFP_ATOMIC, NUMA_NO_NODE);
- if (ioc) {
- ioc_cgroup_changed(ioc);
- put_io_context(ioc);
- }
- }
-}
-
struct cgroup_subsys blkio_subsys = {
.name = "blkio",
- .create = blkiocg_create,
- .can_attach = blkiocg_can_attach,
- .attach = blkiocg_attach,
- .destroy = blkiocg_destroy,
-#ifdef CONFIG_BLK_CGROUP
- /* note: blkio_subsys_id is otherwise defined in blk-cgroup.h */
+ .create = blkcg_create,
+ .can_attach = blkcg_can_attach,
+ .pre_destroy = blkcg_pre_destroy,
+ .destroy = blkcg_destroy,
.subsys_id = blkio_subsys_id,
-#endif
- .base_cftypes = blkio_files,
- .use_id = 1,
+ .base_cftypes = blkcg_files,
.module = THIS_MODULE,
};
EXPORT_SYMBOL_GPL(blkio_subsys);
-void blkio_policy_register(struct blkio_policy_type *blkiop)
+/**
+ * blkcg_activate_policy - activate a blkcg policy on a request_queue
+ * @q: request_queue of interest
+ * @pol: blkcg policy to activate
+ *
+ * Activate @pol on @q. Requires %GFP_KERNEL context. @q goes through
+ * bypass mode to populate its blkgs with policy_data for @pol.
+ *
+ * Activation happens with @q bypassed, so nobody would be accessing blkgs
+ * from IO path. Update of each blkg is protected by both queue and blkcg
+ * locks so that holding either lock and testing blkcg_policy_enabled() is
+ * always enough for dereferencing policy data.
+ *
+ * The caller is responsible for synchronizing [de]activations and policy
+ * [un]registerations. Returns 0 on success, -errno on failure.
+ */
+int blkcg_activate_policy(struct request_queue *q,
+ const struct blkcg_policy *pol)
{
- spin_lock(&blkio_list_lock);
- list_add_tail(&blkiop->list, &blkio_list);
- spin_unlock(&blkio_list_lock);
+ LIST_HEAD(pds);
+ struct blkcg_gq *blkg;
+ struct blkg_policy_data *pd, *n;
+ int cnt = 0, ret;
+
+ if (blkcg_policy_enabled(q, pol))
+ return 0;
+
+ blk_queue_bypass_start(q);
+
+ /* make sure the root blkg exists and count the existing blkgs */
+ spin_lock_irq(q->queue_lock);
+
+ rcu_read_lock();
+ blkg = __blkg_lookup_create(&blkcg_root, q);
+ rcu_read_unlock();
+
+ if (IS_ERR(blkg)) {
+ ret = PTR_ERR(blkg);
+ goto out_unlock;
+ }
+ q->root_blkg = blkg;
+
+ list_for_each_entry(blkg, &q->blkg_list, q_node)
+ cnt++;
+
+ spin_unlock_irq(q->queue_lock);
+
+ /* allocate policy_data for all existing blkgs */
+ while (cnt--) {
+ pd = kzalloc_node(pol->pd_size, GFP_KERNEL, q->node);
+ if (!pd) {
+ ret = -ENOMEM;
+ goto out_free;
+ }
+ list_add_tail(&pd->alloc_node, &pds);
+ }
+
+ /*
+ * Install the allocated pds. With @q bypassing, no new blkg
+ * should have been created while the queue lock was dropped.
+ */
+ spin_lock_irq(q->queue_lock);
+
+ list_for_each_entry(blkg, &q->blkg_list, q_node) {
+ if (WARN_ON(list_empty(&pds))) {
+ /* umm... this shouldn't happen, just abort */
+ ret = -ENOMEM;
+ goto out_unlock;
+ }
+ pd = list_first_entry(&pds, struct blkg_policy_data, alloc_node);
+ list_del_init(&pd->alloc_node);
+
+ /* grab blkcg lock too while installing @pd on @blkg */
+ spin_lock(&blkg->blkcg->lock);
+
+ blkg->pd[pol->plid] = pd;
+ pd->blkg = blkg;
+ pol->pd_init_fn(blkg);
+
+ spin_unlock(&blkg->blkcg->lock);
+ }
+
+ __set_bit(pol->plid, q->blkcg_pols);
+ ret = 0;
+out_unlock:
+ spin_unlock_irq(q->queue_lock);
+out_free:
+ blk_queue_bypass_end(q);
+ list_for_each_entry_safe(pd, n, &pds, alloc_node)
+ kfree(pd);
+ return ret;
}
-EXPORT_SYMBOL_GPL(blkio_policy_register);
+EXPORT_SYMBOL_GPL(blkcg_activate_policy);
-void blkio_policy_unregister(struct blkio_policy_type *blkiop)
+/**
+ * blkcg_deactivate_policy - deactivate a blkcg policy on a request_queue
+ * @q: request_queue of interest
+ * @pol: blkcg policy to deactivate
+ *
+ * Deactivate @pol on @q. Follows the same synchronization rules as
+ * blkcg_activate_policy().
+ */
+void blkcg_deactivate_policy(struct request_queue *q,
+ const struct blkcg_policy *pol)
{
- spin_lock(&blkio_list_lock);
- list_del_init(&blkiop->list);
- spin_unlock(&blkio_list_lock);
+ struct blkcg_gq *blkg;
+
+ if (!blkcg_policy_enabled(q, pol))
+ return;
+
+ blk_queue_bypass_start(q);
+ spin_lock_irq(q->queue_lock);
+
+ __clear_bit(pol->plid, q->blkcg_pols);
+
+ /* if no policy is left, no need for blkgs - shoot them down */
+ if (bitmap_empty(q->blkcg_pols, BLKCG_MAX_POLS))
+ blkg_destroy_all(q);
+
+ list_for_each_entry(blkg, &q->blkg_list, q_node) {
+ /* grab blkcg lock too while removing @pd from @blkg */
+ spin_lock(&blkg->blkcg->lock);
+
+ if (pol->pd_exit_fn)
+ pol->pd_exit_fn(blkg);
+
+ kfree(blkg->pd[pol->plid]);
+ blkg->pd[pol->plid] = NULL;
+
+ spin_unlock(&blkg->blkcg->lock);
+ }
+
+ spin_unlock_irq(q->queue_lock);
+ blk_queue_bypass_end(q);
}
-EXPORT_SYMBOL_GPL(blkio_policy_unregister);
+EXPORT_SYMBOL_GPL(blkcg_deactivate_policy);
-static int __init init_cgroup_blkio(void)
+/**
+ * blkcg_policy_register - register a blkcg policy
+ * @pol: blkcg policy to register
+ *
+ * Register @pol with blkcg core. Might sleep and @pol may be modified on
+ * successful registration. Returns 0 on success and -errno on failure.
+ */
+int blkcg_policy_register(struct blkcg_policy *pol)
{
- return cgroup_load_subsys(&blkio_subsys);
+ int i, ret;
+
+ if (WARN_ON(pol->pd_size < sizeof(struct blkg_policy_data)))
+ return -EINVAL;
+
+ mutex_lock(&blkcg_pol_mutex);
+
+ /* find an empty slot */
+ ret = -ENOSPC;
+ for (i = 0; i < BLKCG_MAX_POLS; i++)
+ if (!blkcg_policy[i])
+ break;
+ if (i >= BLKCG_MAX_POLS)
+ goto out_unlock;
+
+ /* register and update blkgs */
+ pol->plid = i;
+ blkcg_policy[i] = pol;
+
+ /* everything is in place, add intf files for the new policy */
+ if (pol->cftypes)
+ WARN_ON(cgroup_add_cftypes(&blkio_subsys, pol->cftypes));
+ ret = 0;
+out_unlock:
+ mutex_unlock(&blkcg_pol_mutex);
+ return ret;
}
+EXPORT_SYMBOL_GPL(blkcg_policy_register);
-static void __exit exit_cgroup_blkio(void)
+/**
+ * blkcg_policy_unregister - unregister a blkcg policy
+ * @pol: blkcg policy to unregister
+ *
+ * Undo blkcg_policy_register(@pol). Might sleep.
+ */
+void blkcg_policy_unregister(struct blkcg_policy *pol)
{
- cgroup_unload_subsys(&blkio_subsys);
-}
+ mutex_lock(&blkcg_pol_mutex);
-module_init(init_cgroup_blkio);
-module_exit(exit_cgroup_blkio);
-MODULE_LICENSE("GPL");
+ if (WARN_ON(blkcg_policy[pol->plid] != pol))
+ goto out_unlock;
+
+ /* kill the intf files first */
+ if (pol->cftypes)
+ cgroup_rm_cftypes(&blkio_subsys, pol->cftypes);
+
+ /* unregister and update blkgs */
+ blkcg_policy[pol->plid] = NULL;
+out_unlock:
+ mutex_unlock(&blkcg_pol_mutex);
+}
+EXPORT_SYMBOL_GPL(blkcg_policy_unregister);
#include <linux/cgroup.h>
#include <linux/u64_stats_sync.h>
-
-enum blkio_policy_id {
- BLKIO_POLICY_PROP = 0, /* Proportional Bandwidth division */
- BLKIO_POLICY_THROTL, /* Throttling */
-};
+#include <linux/seq_file.h>
+#include <linux/radix-tree.h>
/* Max limits for throttle policy */
#define THROTL_IOPS_MAX UINT_MAX
-#if defined(CONFIG_BLK_CGROUP) || defined(CONFIG_BLK_CGROUP_MODULE)
-
-#ifndef CONFIG_BLK_CGROUP
-/* When blk-cgroup is a module, its subsys_id isn't a compile-time constant */
-extern struct cgroup_subsys blkio_subsys;
-#define blkio_subsys_id blkio_subsys.subsys_id
-#endif
-
-enum stat_type {
- /* Total time spent (in ns) between request dispatch to the driver and
- * request completion for IOs doen by this cgroup. This may not be
- * accurate when NCQ is turned on. */
- BLKIO_STAT_SERVICE_TIME = 0,
- /* Total time spent waiting in scheduler queue in ns */
- BLKIO_STAT_WAIT_TIME,
- /* Number of IOs queued up */
- BLKIO_STAT_QUEUED,
- /* All the single valued stats go below this */
- BLKIO_STAT_TIME,
-#ifdef CONFIG_DEBUG_BLK_CGROUP
- /* Time not charged to this cgroup */
- BLKIO_STAT_UNACCOUNTED_TIME,
- BLKIO_STAT_AVG_QUEUE_SIZE,
- BLKIO_STAT_IDLE_TIME,
- BLKIO_STAT_EMPTY_TIME,
- BLKIO_STAT_GROUP_WAIT_TIME,
- BLKIO_STAT_DEQUEUE
-#endif
-};
+/* CFQ specific, out here for blkcg->cfq_weight */
+#define CFQ_WEIGHT_MIN 10
+#define CFQ_WEIGHT_MAX 1000
+#define CFQ_WEIGHT_DEFAULT 500
-/* Per cpu stats */
-enum stat_type_cpu {
- BLKIO_STAT_CPU_SECTORS,
- /* Total bytes transferred */
- BLKIO_STAT_CPU_SERVICE_BYTES,
- /* Total IOs serviced, post merge */
- BLKIO_STAT_CPU_SERVICED,
- /* Number of IOs merged */
- BLKIO_STAT_CPU_MERGED,
- BLKIO_STAT_CPU_NR
-};
+#ifdef CONFIG_BLK_CGROUP
-enum stat_sub_type {
- BLKIO_STAT_READ = 0,
- BLKIO_STAT_WRITE,
- BLKIO_STAT_SYNC,
- BLKIO_STAT_ASYNC,
- BLKIO_STAT_TOTAL
-};
+enum blkg_rwstat_type {
+ BLKG_RWSTAT_READ,
+ BLKG_RWSTAT_WRITE,
+ BLKG_RWSTAT_SYNC,
+ BLKG_RWSTAT_ASYNC,
-/* blkg state flags */
-enum blkg_state_flags {
- BLKG_waiting = 0,
- BLKG_idling,
- BLKG_empty,
+ BLKG_RWSTAT_NR,
+ BLKG_RWSTAT_TOTAL = BLKG_RWSTAT_NR,
};
-/* cgroup files owned by proportional weight policy */
-enum blkcg_file_name_prop {
- BLKIO_PROP_weight = 1,
- BLKIO_PROP_weight_device,
- BLKIO_PROP_io_service_bytes,
- BLKIO_PROP_io_serviced,
- BLKIO_PROP_time,
- BLKIO_PROP_sectors,
- BLKIO_PROP_unaccounted_time,
- BLKIO_PROP_io_service_time,
- BLKIO_PROP_io_wait_time,
- BLKIO_PROP_io_merged,
- BLKIO_PROP_io_queued,
- BLKIO_PROP_avg_queue_size,
- BLKIO_PROP_group_wait_time,
- BLKIO_PROP_idle_time,
- BLKIO_PROP_empty_time,
- BLKIO_PROP_dequeue,
-};
+struct blkcg_gq;
-/* cgroup files owned by throttle policy */
-enum blkcg_file_name_throtl {
- BLKIO_THROTL_read_bps_device,
- BLKIO_THROTL_write_bps_device,
- BLKIO_THROTL_read_iops_device,
- BLKIO_THROTL_write_iops_device,
- BLKIO_THROTL_io_service_bytes,
- BLKIO_THROTL_io_serviced,
-};
+struct blkcg {
+ struct cgroup_subsys_state css;
+ spinlock_t lock;
-struct blkio_cgroup {
- struct cgroup_subsys_state css;
- unsigned int weight;
- spinlock_t lock;
- struct hlist_head blkg_list;
- struct list_head policy_list; /* list of blkio_policy_node */
-};
+ struct radix_tree_root blkg_tree;
+ struct blkcg_gq *blkg_hint;
+ struct hlist_head blkg_list;
+
+ /* for policies to test whether associated blkcg has changed */
+ uint64_t id;
-struct blkio_group_stats {
- /* total disk time and nr sectors dispatched by this group */
- uint64_t time;
- uint64_t stat_arr[BLKIO_STAT_QUEUED + 1][BLKIO_STAT_TOTAL];
-#ifdef CONFIG_DEBUG_BLK_CGROUP
- /* Time not charged to this cgroup */
- uint64_t unaccounted_time;
-
- /* Sum of number of IOs queued across all samples */
- uint64_t avg_queue_size_sum;
- /* Count of samples taken for average */
- uint64_t avg_queue_size_samples;
- /* How many times this group has been removed from service tree */
- unsigned long dequeue;
-
- /* Total time spent waiting for it to be assigned a timeslice. */
- uint64_t group_wait_time;
- uint64_t start_group_wait_time;
-
- /* Time spent idling for this blkio_group */
- uint64_t idle_time;
- uint64_t start_idle_time;
- /*
- * Total time when we have requests queued and do not contain the
- * current active queue.
- */
- uint64_t empty_time;
- uint64_t start_empty_time;
- uint16_t flags;
-#endif
+ /* TODO: per-policy storage in blkcg */
+ unsigned int cfq_weight; /* belongs to cfq */
};
-/* Per cpu blkio group stats */
-struct blkio_group_stats_cpu {
- uint64_t sectors;
- uint64_t stat_arr_cpu[BLKIO_STAT_CPU_NR][BLKIO_STAT_TOTAL];
- struct u64_stats_sync syncp;
+struct blkg_stat {
+ struct u64_stats_sync syncp;
+ uint64_t cnt;
};
-struct blkio_group {
- /* An rcu protected unique identifier for the group */
- void *key;
- struct hlist_node blkcg_node;
- unsigned short blkcg_id;
- /* Store cgroup path */
- char path[128];
- /* The device MKDEV(major, minor), this group has been created for */
- dev_t dev;
- /* policy which owns this blk group */
- enum blkio_policy_id plid;
-
- /* Need to serialize the stats in the case of reset/update */
- spinlock_t stats_lock;
- struct blkio_group_stats stats;
- /* Per cpu stats pointer */
- struct blkio_group_stats_cpu __percpu *stats_cpu;
+struct blkg_rwstat {
+ struct u64_stats_sync syncp;
+ uint64_t cnt[BLKG_RWSTAT_NR];
};
-struct blkio_policy_node {
- struct list_head node;
- dev_t dev;
- /* This node belongs to max bw policy or porportional weight policy */
- enum blkio_policy_id plid;
- /* cgroup file to which this rule belongs to */
- int fileid;
-
- union {
- unsigned int weight;
- /*
- * Rate read/write in terms of bytes per second
- * Whether this rate represents read or write is determined
- * by file type "fileid".
- */
- u64 bps;
- unsigned int iops;
- } val;
+/*
+ * A blkcg_gq (blkg) is association between a block cgroup (blkcg) and a
+ * request_queue (q). This is used by blkcg policies which need to track
+ * information per blkcg - q pair.
+ *
+ * There can be multiple active blkcg policies and each has its private
+ * data on each blkg, the size of which is determined by
+ * blkcg_policy->pd_size. blkcg core allocates and frees such areas
+ * together with blkg and invokes pd_init/exit_fn() methods.
+ *
+ * Such private data must embed struct blkg_policy_data (pd) at the
+ * beginning and pd_size can't be smaller than pd.
+ */
+struct blkg_policy_data {
+ /* the blkg this per-policy data belongs to */
+ struct blkcg_gq *blkg;
+
+ /* used during policy activation */
+ struct list_head alloc_node;
};
-extern unsigned int blkcg_get_weight(struct blkio_cgroup *blkcg,
- dev_t dev);
-extern uint64_t blkcg_get_read_bps(struct blkio_cgroup *blkcg,
- dev_t dev);
-extern uint64_t blkcg_get_write_bps(struct blkio_cgroup *blkcg,
- dev_t dev);
-extern unsigned int blkcg_get_read_iops(struct blkio_cgroup *blkcg,
- dev_t dev);
-extern unsigned int blkcg_get_write_iops(struct blkio_cgroup *blkcg,
- dev_t dev);
-
-typedef void (blkio_unlink_group_fn) (void *key, struct blkio_group *blkg);
-
-typedef void (blkio_update_group_weight_fn) (void *key,
- struct blkio_group *blkg, unsigned int weight);
-typedef void (blkio_update_group_read_bps_fn) (void * key,
- struct blkio_group *blkg, u64 read_bps);
-typedef void (blkio_update_group_write_bps_fn) (void *key,
- struct blkio_group *blkg, u64 write_bps);
-typedef void (blkio_update_group_read_iops_fn) (void *key,
- struct blkio_group *blkg, unsigned int read_iops);
-typedef void (blkio_update_group_write_iops_fn) (void *key,
- struct blkio_group *blkg, unsigned int write_iops);
-
-struct blkio_policy_ops {
- blkio_unlink_group_fn *blkio_unlink_group_fn;
- blkio_update_group_weight_fn *blkio_update_group_weight_fn;
- blkio_update_group_read_bps_fn *blkio_update_group_read_bps_fn;
- blkio_update_group_write_bps_fn *blkio_update_group_write_bps_fn;
- blkio_update_group_read_iops_fn *blkio_update_group_read_iops_fn;
- blkio_update_group_write_iops_fn *blkio_update_group_write_iops_fn;
+/* association between a blk cgroup and a request queue */
+struct blkcg_gq {
+ /* Pointer to the associated request_queue */
+ struct request_queue *q;
+ struct list_head q_node;
+ struct hlist_node blkcg_node;
+ struct blkcg *blkcg;
+ /* reference count */
+ int refcnt;
+
+ struct blkg_policy_data *pd[BLKCG_MAX_POLS];
+
+ struct rcu_head rcu_head;
};
-struct blkio_policy_type {
- struct list_head list;
- struct blkio_policy_ops ops;
- enum blkio_policy_id plid;
+typedef void (blkcg_pol_init_pd_fn)(struct blkcg_gq *blkg);
+typedef void (blkcg_pol_exit_pd_fn)(struct blkcg_gq *blkg);
+typedef void (blkcg_pol_reset_pd_stats_fn)(struct blkcg_gq *blkg);
+
+struct blkcg_policy {
+ int plid;
+ /* policy specific private data size */
+ size_t pd_size;
+ /* cgroup files for the policy */
+ struct cftype *cftypes;
+
+ /* operations */
+ blkcg_pol_init_pd_fn *pd_init_fn;
+ blkcg_pol_exit_pd_fn *pd_exit_fn;
+ blkcg_pol_reset_pd_stats_fn *pd_reset_stats_fn;
};
+extern struct blkcg blkcg_root;
+
+struct blkcg *cgroup_to_blkcg(struct cgroup *cgroup);
+struct blkcg *bio_blkcg(struct bio *bio);
+struct blkcg_gq *blkg_lookup(struct blkcg *blkcg, struct request_queue *q);
+struct blkcg_gq *blkg_lookup_create(struct blkcg *blkcg,
+ struct request_queue *q);
+int blkcg_init_queue(struct request_queue *q);
+void blkcg_drain_queue(struct request_queue *q);
+void blkcg_exit_queue(struct request_queue *q);
+
/* Blkio controller policy registration */
-extern void blkio_policy_register(struct blkio_policy_type *);
-extern void blkio_policy_unregister(struct blkio_policy_type *);
+int blkcg_policy_register(struct blkcg_policy *pol);
+void blkcg_policy_unregister(struct blkcg_policy *pol);
+int blkcg_activate_policy(struct request_queue *q,
+ const struct blkcg_policy *pol);
+void blkcg_deactivate_policy(struct request_queue *q,
+ const struct blkcg_policy *pol);
+
+void blkcg_print_blkgs(struct seq_file *sf, struct blkcg *blkcg,
+ u64 (*prfill)(struct seq_file *,
+ struct blkg_policy_data *, int),
+ const struct blkcg_policy *pol, int data,
+ bool show_total);
+u64 __blkg_prfill_u64(struct seq_file *sf, struct blkg_policy_data *pd, u64 v);
+u64 __blkg_prfill_rwstat(struct seq_file *sf, struct blkg_policy_data *pd,
+ const struct blkg_rwstat *rwstat);
+u64 blkg_prfill_stat(struct seq_file *sf, struct blkg_policy_data *pd, int off);
+u64 blkg_prfill_rwstat(struct seq_file *sf, struct blkg_policy_data *pd,
+ int off);
+
+struct blkg_conf_ctx {
+ struct gendisk *disk;
+ struct blkcg_gq *blkg;
+ u64 v;
+};
+
+int blkg_conf_prep(struct blkcg *blkcg, const struct blkcg_policy *pol,
+ const char *input, struct blkg_conf_ctx *ctx);
+void blkg_conf_finish(struct blkg_conf_ctx *ctx);
+
+
+/**
+ * blkg_to_pdata - get policy private data
+ * @blkg: blkg of interest
+ * @pol: policy of interest
+ *
+ * Return pointer to private data associated with the @blkg-@pol pair.
+ */
+static inline struct blkg_policy_data *blkg_to_pd(struct blkcg_gq *blkg,
+ struct blkcg_policy *pol)
+{
+ return blkg ? blkg->pd[pol->plid] : NULL;
+}
+
+/**
+ * pdata_to_blkg - get blkg associated with policy private data
+ * @pd: policy private data of interest
+ *
+ * @pd is policy private data. Determine the blkg it's associated with.
+ */
+static inline struct blkcg_gq *pd_to_blkg(struct blkg_policy_data *pd)
+{
+ return pd ? pd->blkg : NULL;
+}
+
+/**
+ * blkg_path - format cgroup path of blkg
+ * @blkg: blkg of interest
+ * @buf: target buffer
+ * @buflen: target buffer length
+ *
+ * Format the path of the cgroup of @blkg into @buf.
+ */
+static inline int blkg_path(struct blkcg_gq *blkg, char *buf, int buflen)
+{
+ int ret;
+
+ rcu_read_lock();
+ ret = cgroup_path(blkg->blkcg->css.cgroup, buf, buflen);
+ rcu_read_unlock();
+ if (ret)
+ strncpy(buf, "<unavailable>", buflen);
+ return ret;
+}
-static inline char *blkg_path(struct blkio_group *blkg)
+/**
+ * blkg_get - get a blkg reference
+ * @blkg: blkg to get
+ *
+ * The caller should be holding queue_lock and an existing reference.
+ */
+static inline void blkg_get(struct blkcg_gq *blkg)
{
- return blkg->path;
+ lockdep_assert_held(blkg->q->queue_lock);
+ WARN_ON_ONCE(!blkg->refcnt);
+ blkg->refcnt++;
}
-#else
+void __blkg_release(struct blkcg_gq *blkg);
-struct blkio_group {
+/**
+ * blkg_put - put a blkg reference
+ * @blkg: blkg to put
+ *
+ * The caller should be holding queue_lock.
+ */
+static inline void blkg_put(struct blkcg_gq *blkg)
+{
+ lockdep_assert_held(blkg->q->queue_lock);
+ WARN_ON_ONCE(blkg->refcnt <= 0);
+ if (!--blkg->refcnt)
+ __blkg_release(blkg);
+}
+
+/**
+ * blkg_stat_add - add a value to a blkg_stat
+ * @stat: target blkg_stat
+ * @val: value to add
+ *
+ * Add @val to @stat. The caller is responsible for synchronizing calls to
+ * this function.
+ */
+static inline void blkg_stat_add(struct blkg_stat *stat, uint64_t val)
+{
+ u64_stats_update_begin(&stat->syncp);
+ stat->cnt += val;
+ u64_stats_update_end(&stat->syncp);
+}
+
+/**
+ * blkg_stat_read - read the current value of a blkg_stat
+ * @stat: blkg_stat to read
+ *
+ * Read the current value of @stat. This function can be called without
+ * synchroniztion and takes care of u64 atomicity.
+ */
+static inline uint64_t blkg_stat_read(struct blkg_stat *stat)
+{
+ unsigned int start;
+ uint64_t v;
+
+ do {
+ start = u64_stats_fetch_begin(&stat->syncp);
+ v = stat->cnt;
+ } while (u64_stats_fetch_retry(&stat->syncp, start));
+
+ return v;
+}
+
+/**
+ * blkg_stat_reset - reset a blkg_stat
+ * @stat: blkg_stat to reset
+ */
+static inline void blkg_stat_reset(struct blkg_stat *stat)
+{
+ stat->cnt = 0;
+}
+
+/**
+ * blkg_rwstat_add - add a value to a blkg_rwstat
+ * @rwstat: target blkg_rwstat
+ * @rw: mask of REQ_{WRITE|SYNC}
+ * @val: value to add
+ *
+ * Add @val to @rwstat. The counters are chosen according to @rw. The
+ * caller is responsible for synchronizing calls to this function.
+ */
+static inline void blkg_rwstat_add(struct blkg_rwstat *rwstat,
+ int rw, uint64_t val)
+{
+ u64_stats_update_begin(&rwstat->syncp);
+
+ if (rw & REQ_WRITE)
+ rwstat->cnt[BLKG_RWSTAT_WRITE] += val;
+ else
+ rwstat->cnt[BLKG_RWSTAT_READ] += val;
+ if (rw & REQ_SYNC)
+ rwstat->cnt[BLKG_RWSTAT_SYNC] += val;
+ else
+ rwstat->cnt[BLKG_RWSTAT_ASYNC] += val;
+
+ u64_stats_update_end(&rwstat->syncp);
+}
+
+/**
+ * blkg_rwstat_read - read the current values of a blkg_rwstat
+ * @rwstat: blkg_rwstat to read
+ *
+ * Read the current snapshot of @rwstat and return it as the return value.
+ * This function can be called without synchronization and takes care of
+ * u64 atomicity.
+ */
+static inline struct blkg_rwstat blkg_rwstat_read(struct blkg_rwstat *rwstat)
+{
+ unsigned int start;
+ struct blkg_rwstat tmp;
+
+ do {
+ start = u64_stats_fetch_begin(&rwstat->syncp);
+ tmp = *rwstat;
+ } while (u64_stats_fetch_retry(&rwstat->syncp, start));
+
+ return tmp;
+}
+
+/**
+ * blkg_rwstat_sum - read the total count of a blkg_rwstat
+ * @rwstat: blkg_rwstat to read
+ *
+ * Return the total count of @rwstat regardless of the IO direction. This
+ * function can be called without synchronization and takes care of u64
+ * atomicity.
+ */
+static inline uint64_t blkg_rwstat_sum(struct blkg_rwstat *rwstat)
+{
+ struct blkg_rwstat tmp = blkg_rwstat_read(rwstat);
+
+ return tmp.cnt[BLKG_RWSTAT_READ] + tmp.cnt[BLKG_RWSTAT_WRITE];
+}
+
+/**
+ * blkg_rwstat_reset - reset a blkg_rwstat
+ * @rwstat: blkg_rwstat to reset
+ */
+static inline void blkg_rwstat_reset(struct blkg_rwstat *rwstat)
+{
+ memset(rwstat->cnt, 0, sizeof(rwstat->cnt));
+}
+
+#else /* CONFIG_BLK_CGROUP */
+
+struct cgroup;
+
+struct blkg_policy_data {
};
-struct blkio_policy_type {
+struct blkcg_gq {
};
-static inline void blkio_policy_register(struct blkio_policy_type *blkiop) { }
-static inline void blkio_policy_unregister(struct blkio_policy_type *blkiop) { }
-
-static inline char *blkg_path(struct blkio_group *blkg) { return NULL; }
-
-#endif
-
-#define BLKIO_WEIGHT_MIN 10
-#define BLKIO_WEIGHT_MAX 1000
-#define BLKIO_WEIGHT_DEFAULT 500
-
-#ifdef CONFIG_DEBUG_BLK_CGROUP
-void blkiocg_update_avg_queue_size_stats(struct blkio_group *blkg);
-void blkiocg_update_dequeue_stats(struct blkio_group *blkg,
- unsigned long dequeue);
-void blkiocg_update_set_idle_time_stats(struct blkio_group *blkg);
-void blkiocg_update_idle_time_stats(struct blkio_group *blkg);
-void blkiocg_set_start_empty_time(struct blkio_group *blkg);
-
-#define BLKG_FLAG_FNS(name) \
-static inline void blkio_mark_blkg_##name( \
- struct blkio_group_stats *stats) \
-{ \
- stats->flags |= (1 << BLKG_##name); \
-} \
-static inline void blkio_clear_blkg_##name( \
- struct blkio_group_stats *stats) \
-{ \
- stats->flags &= ~(1 << BLKG_##name); \
-} \
-static inline int blkio_blkg_##name(struct blkio_group_stats *stats) \
-{ \
- return (stats->flags & (1 << BLKG_##name)) != 0; \
-} \
-
-BLKG_FLAG_FNS(waiting)
-BLKG_FLAG_FNS(idling)
-BLKG_FLAG_FNS(empty)
-#undef BLKG_FLAG_FNS
-#else
-static inline void blkiocg_update_avg_queue_size_stats(
- struct blkio_group *blkg) {}
-static inline void blkiocg_update_dequeue_stats(struct blkio_group *blkg,
- unsigned long dequeue) {}
-static inline void blkiocg_update_set_idle_time_stats(struct blkio_group *blkg)
-{}
-static inline void blkiocg_update_idle_time_stats(struct blkio_group *blkg) {}
-static inline void blkiocg_set_start_empty_time(struct blkio_group *blkg) {}
-#endif
-
-#if defined(CONFIG_BLK_CGROUP) || defined(CONFIG_BLK_CGROUP_MODULE)
-extern struct blkio_cgroup blkio_root_cgroup;
-extern struct blkio_cgroup *cgroup_to_blkio_cgroup(struct cgroup *cgroup);
-extern struct blkio_cgroup *task_blkio_cgroup(struct task_struct *tsk);
-extern void blkiocg_add_blkio_group(struct blkio_cgroup *blkcg,
- struct blkio_group *blkg, void *key, dev_t dev,
- enum blkio_policy_id plid);
-extern int blkio_alloc_blkg_stats(struct blkio_group *blkg);
-extern int blkiocg_del_blkio_group(struct blkio_group *blkg);
-extern struct blkio_group *blkiocg_lookup_group(struct blkio_cgroup *blkcg,
- void *key);
-void blkiocg_update_timeslice_used(struct blkio_group *blkg,
- unsigned long time,
- unsigned long unaccounted_time);
-void blkiocg_update_dispatch_stats(struct blkio_group *blkg, uint64_t bytes,
- bool direction, bool sync);
-void blkiocg_update_completion_stats(struct blkio_group *blkg,
- uint64_t start_time, uint64_t io_start_time, bool direction, bool sync);
-void blkiocg_update_io_merged_stats(struct blkio_group *blkg, bool direction,
- bool sync);
-void blkiocg_update_io_add_stats(struct blkio_group *blkg,
- struct blkio_group *curr_blkg, bool direction, bool sync);
-void blkiocg_update_io_remove_stats(struct blkio_group *blkg,
- bool direction, bool sync);
-#else
-struct cgroup;
-static inline struct blkio_cgroup *
-cgroup_to_blkio_cgroup(struct cgroup *cgroup) { return NULL; }
-static inline struct blkio_cgroup *
-task_blkio_cgroup(struct task_struct *tsk) { return NULL; }
-
-static inline void blkiocg_add_blkio_group(struct blkio_cgroup *blkcg,
- struct blkio_group *blkg, void *key, dev_t dev,
- enum blkio_policy_id plid) {}
-
-static inline int blkio_alloc_blkg_stats(struct blkio_group *blkg) { return 0; }
-
-static inline int
-blkiocg_del_blkio_group(struct blkio_group *blkg) { return 0; }
-
-static inline struct blkio_group *
-blkiocg_lookup_group(struct blkio_cgroup *blkcg, void *key) { return NULL; }
-static inline void blkiocg_update_timeslice_used(struct blkio_group *blkg,
- unsigned long time,
- unsigned long unaccounted_time)
-{}
-static inline void blkiocg_update_dispatch_stats(struct blkio_group *blkg,
- uint64_t bytes, bool direction, bool sync) {}
-static inline void blkiocg_update_completion_stats(struct blkio_group *blkg,
- uint64_t start_time, uint64_t io_start_time, bool direction,
- bool sync) {}
-static inline void blkiocg_update_io_merged_stats(struct blkio_group *blkg,
- bool direction, bool sync) {}
-static inline void blkiocg_update_io_add_stats(struct blkio_group *blkg,
- struct blkio_group *curr_blkg, bool direction, bool sync) {}
-static inline void blkiocg_update_io_remove_stats(struct blkio_group *blkg,
- bool direction, bool sync) {}
-#endif
-#endif /* _BLK_CGROUP_H */
+struct blkcg_policy {
+};
+
+static inline struct blkcg *cgroup_to_blkcg(struct cgroup *cgroup) { return NULL; }
+static inline struct blkcg *bio_blkcg(struct bio *bio) { return NULL; }
+static inline struct blkcg_gq *blkg_lookup(struct blkcg *blkcg, void *key) { return NULL; }
+static inline int blkcg_init_queue(struct request_queue *q) { return 0; }
+static inline void blkcg_drain_queue(struct request_queue *q) { }
+static inline void blkcg_exit_queue(struct request_queue *q) { }
+static inline int blkcg_policy_register(struct blkcg_policy *pol) { return 0; }
+static inline void blkcg_policy_unregister(struct blkcg_policy *pol) { }
+static inline int blkcg_activate_policy(struct request_queue *q,
+ const struct blkcg_policy *pol) { return 0; }
+static inline void blkcg_deactivate_policy(struct request_queue *q,
+ const struct blkcg_policy *pol) { }
+
+static inline struct blkg_policy_data *blkg_to_pd(struct blkcg_gq *blkg,
+ struct blkcg_policy *pol) { return NULL; }
+static inline struct blkcg_gq *pd_to_blkg(struct blkg_policy_data *pd) { return NULL; }
+static inline char *blkg_path(struct blkcg_gq *blkg) { return NULL; }
+static inline void blkg_get(struct blkcg_gq *blkg) { }
+static inline void blkg_put(struct blkcg_gq *blkg) { }
+
+#endif /* CONFIG_BLK_CGROUP */
+#endif /* _BLK_CGROUP_H */
#include <linux/fault-inject.h>
#include <linux/list_sort.h>
#include <linux/delay.h>
+#include <linux/ratelimit.h>
#define CREATE_TRACE_POINTS
#include <trace/events/block.h>
#include "blk.h"
+#include "blk-cgroup.h"
EXPORT_TRACEPOINT_SYMBOL_GPL(block_bio_remap);
EXPORT_TRACEPOINT_SYMBOL_GPL(block_rq_remap);
*
* This function does not cancel any asynchronous activity arising
* out of elevator or throttling code. That would require elevaotor_exit()
- * and blk_throtl_exit() to be called with queue lock initialized.
+ * and blkcg_exit_queue() to be called with queue lock initialized.
*
*/
void blk_sync_queue(struct request_queue *q)
spin_lock_irq(q->queue_lock);
- elv_drain_elevator(q);
- if (drain_all)
- blk_throtl_drain(q);
+ /*
+ * The caller might be trying to drain @q before its
+ * elevator is initialized.
+ */
+ if (q->elevator)
+ elv_drain_elevator(q);
+
+ blkcg_drain_queue(q);
/*
* This function might be called on a queue which failed
- * driver init after queue creation. Some drivers
- * (e.g. fd) get unhappy in such cases. Kick queue iff
- * dispatch queue has something on it.
+ * driver init after queue creation or is not yet fully
+ * active yet. Some drivers (e.g. fd and loop) get unhappy
+ * in such cases. Kick queue iff dispatch queue has
+ * something on it and @q has request_fn set.
*/
- if (!list_empty(&q->queue_head))
+ if (!list_empty(&q->queue_head) && q->request_fn)
__blk_run_queue(q);
drain |= q->rq.elvpriv;
}
}
+/**
+ * blk_queue_bypass_start - enter queue bypass mode
+ * @q: queue of interest
+ *
+ * In bypass mode, only the dispatch FIFO queue of @q is used. This
+ * function makes @q enter bypass mode and drains all requests which were
+ * throttled or issued before. On return, it's guaranteed that no request
+ * is being throttled or has ELVPRIV set and blk_queue_bypass() %true
+ * inside queue or RCU read lock.
+ */
+void blk_queue_bypass_start(struct request_queue *q)
+{
+ bool drain;
+
+ spin_lock_irq(q->queue_lock);
+ drain = !q->bypass_depth++;
+ queue_flag_set(QUEUE_FLAG_BYPASS, q);
+ spin_unlock_irq(q->queue_lock);
+
+ if (drain) {
+ blk_drain_queue(q, false);
+ /* ensure blk_queue_bypass() is %true inside RCU read lock */
+ synchronize_rcu();
+ }
+}
+EXPORT_SYMBOL_GPL(blk_queue_bypass_start);
+
+/**
+ * blk_queue_bypass_end - leave queue bypass mode
+ * @q: queue of interest
+ *
+ * Leave bypass mode and restore the normal queueing behavior.
+ */
+void blk_queue_bypass_end(struct request_queue *q)
+{
+ spin_lock_irq(q->queue_lock);
+ if (!--q->bypass_depth)
+ queue_flag_clear(QUEUE_FLAG_BYPASS, q);
+ WARN_ON_ONCE(q->bypass_depth < 0);
+ spin_unlock_irq(q->queue_lock);
+}
+EXPORT_SYMBOL_GPL(blk_queue_bypass_end);
+
/**
* blk_cleanup_queue - shutdown a request queue
* @q: request queue to shutdown
queue_flag_set_unlocked(QUEUE_FLAG_DEAD, q);
spin_lock_irq(lock);
+
+ /*
+ * Dead queue is permanently in bypass mode till released. Note
+ * that, unlike blk_queue_bypass_start(), we aren't performing
+ * synchronize_rcu() after entering bypass mode to avoid the delay
+ * as some drivers create and destroy a lot of queues while
+ * probing. This is still safe because blk_release_queue() will be
+ * called only after the queue refcnt drops to zero and nothing,
+ * RCU or not, would be traversing the queue by then.
+ */
+ q->bypass_depth++;
+ queue_flag_set(QUEUE_FLAG_BYPASS, q);
+
queue_flag_set(QUEUE_FLAG_NOMERGES, q);
queue_flag_set(QUEUE_FLAG_NOXMERGES, q);
queue_flag_set(QUEUE_FLAG_DEAD, q);
spin_unlock_irq(lock);
mutex_unlock(&q->sysfs_lock);
- /*
- * Drain all requests queued before DEAD marking. The caller might
- * be trying to tear down @q before its elevator is initialized, in
- * which case we don't want to call into draining.
- */
- if (q->elevator)
- blk_drain_queue(q, true);
+ /* drain all requests queued before DEAD marking */
+ blk_drain_queue(q, true);
/* @q won't process any more request, flush async actions */
del_timer_sync(&q->backing_dev_info.laptop_mode_wb_timer);
if (err)
goto fail_id;
- if (blk_throtl_init(q))
- goto fail_id;
-
setup_timer(&q->backing_dev_info.laptop_mode_wb_timer,
laptop_mode_timer_fn, (unsigned long) q);
setup_timer(&q->timeout, blk_rq_timed_out_timer, (unsigned long) q);
+ INIT_LIST_HEAD(&q->queue_head);
INIT_LIST_HEAD(&q->timeout_list);
INIT_LIST_HEAD(&q->icq_list);
+#ifdef CONFIG_BLK_CGROUP
+ INIT_LIST_HEAD(&q->blkg_list);
+#endif
INIT_LIST_HEAD(&q->flush_queue[0]);
INIT_LIST_HEAD(&q->flush_queue[1]);
INIT_LIST_HEAD(&q->flush_data_in_flight);
*/
q->queue_lock = &q->__queue_lock;
+ /*
+ * A queue starts its life with bypass turned on to avoid
+ * unnecessary bypass on/off overhead and nasty surprises during
+ * init. The initial bypass will be finished at the end of
+ * blk_init_allocated_queue().
+ */
+ q->bypass_depth = 1;
+ __set_bit(QUEUE_FLAG_BYPASS, &q->queue_flags);
+
+ if (blkcg_init_queue(q))
+ goto fail_id;
+
return q;
fail_id:
q->sg_reserved_size = INT_MAX;
- /*
- * all done
- */
- if (!elevator_init(q, NULL)) {
- blk_queue_congestion_threshold(q);
- return q;
- }
+ /* init elevator */
+ if (elevator_init(q, NULL))
+ return NULL;
- return NULL;
+ blk_queue_congestion_threshold(q);
+
+ /* all done, end the initial bypass */
+ blk_queue_bypass_end(q);
+ return q;
}
EXPORT_SYMBOL(blk_init_allocated_queue);
mempool_free(rq, q->rq.rq_pool);
}
-static struct request *
-blk_alloc_request(struct request_queue *q, struct io_cq *icq,
- unsigned int flags, gfp_t gfp_mask)
-{
- struct request *rq = mempool_alloc(q->rq.rq_pool, gfp_mask);
-
- if (!rq)
- return NULL;
-
- blk_rq_init(q, rq);
-
- rq->cmd_flags = flags | REQ_ALLOCED;
-
- if (flags & REQ_ELVPRIV) {
- rq->elv.icq = icq;
- if (unlikely(elv_set_request(q, rq, gfp_mask))) {
- mempool_free(rq, q->rq.rq_pool);
- return NULL;
- }
- /* @rq->elv.icq holds on to io_context until @rq is freed */
- if (icq)
- get_io_context(icq->ioc);
- }
-
- return rq;
-}
-
/*
* ioc_batching returns true if the ioc is a valid batching request and
* should be given priority access to a request.
return true;
}
+/**
+ * rq_ioc - determine io_context for request allocation
+ * @bio: request being allocated is for this bio (can be %NULL)
+ *
+ * Determine io_context to use for request allocation for @bio. May return
+ * %NULL if %current->io_context doesn't exist.
+ */
+static struct io_context *rq_ioc(struct bio *bio)
+{
+#ifdef CONFIG_BLK_CGROUP
+ if (bio && bio->bi_ioc)
+ return bio->bi_ioc;
+#endif
+ return current->io_context;
+}
+
/**
* get_request - get a free request
* @q: request_queue to allocate request from
static struct request *get_request(struct request_queue *q, int rw_flags,
struct bio *bio, gfp_t gfp_mask)
{
- struct request *rq = NULL;
+ struct request *rq;
struct request_list *rl = &q->rq;
struct elevator_type *et;
struct io_context *ioc;
int may_queue;
retry:
et = q->elevator->type;
- ioc = current->io_context;
+ ioc = rq_ioc(bio);
if (unlikely(blk_queue_dead(q)))
return NULL;
*/
if (!ioc && !retried) {
spin_unlock_irq(q->queue_lock);
- create_io_context(current, gfp_mask, q->node);
+ create_io_context(gfp_mask, q->node);
spin_lock_irq(q->queue_lock);
retried = true;
goto retry;
* process is not a "batcher", and not
* exempted by the IO scheduler
*/
- goto out;
+ return NULL;
}
}
}
* allocated with any setting of ->nr_requests
*/
if (rl->count[is_sync] >= (3 * q->nr_requests / 2))
- goto out;
+ return NULL;
rl->count[is_sync]++;
rl->starved[is_sync] = 0;
* Also, lookup icq while holding queue_lock. If it doesn't exist,
* it will be created after releasing queue_lock.
*/
- if (blk_rq_should_init_elevator(bio) &&
- !test_bit(QUEUE_FLAG_ELVSWITCH, &q->queue_flags)) {
+ if (blk_rq_should_init_elevator(bio) && !blk_queue_bypass(q)) {
rw_flags |= REQ_ELVPRIV;
rl->elvpriv++;
if (et->icq_cache && ioc)
rw_flags |= REQ_IO_STAT;
spin_unlock_irq(q->queue_lock);
- /* create icq if missing */
- if ((rw_flags & REQ_ELVPRIV) && unlikely(et->icq_cache && !icq)) {
- icq = ioc_create_icq(q, gfp_mask);
- if (!icq)
- goto fail_icq;
- }
-
- rq = blk_alloc_request(q, icq, rw_flags, gfp_mask);
+ /* allocate and init request */
+ rq = mempool_alloc(q->rq.rq_pool, gfp_mask);
+ if (!rq)
+ goto fail_alloc;
-fail_icq:
- if (unlikely(!rq)) {
- /*
- * Allocation failed presumably due to memory. Undo anything
- * we might have messed up.
- *
- * Allocating task should really be put onto the front of the
- * wait queue, but this is pretty rare.
- */
- spin_lock_irq(q->queue_lock);
- freed_request(q, rw_flags);
+ blk_rq_init(q, rq);
+ rq->cmd_flags = rw_flags | REQ_ALLOCED;
+
+ /* init elvpriv */
+ if (rw_flags & REQ_ELVPRIV) {
+ if (unlikely(et->icq_cache && !icq)) {
+ create_io_context(gfp_mask, q->node);
+ ioc = rq_ioc(bio);
+ if (!ioc)
+ goto fail_elvpriv;
+
+ icq = ioc_create_icq(ioc, q, gfp_mask);
+ if (!icq)
+ goto fail_elvpriv;
+ }
- /*
- * in the very unlikely event that allocation failed and no
- * requests for this direction was pending, mark us starved
- * so that freeing of a request in the other direction will
- * notice us. another possible fix would be to split the
- * rq mempool into READ and WRITE
- */
-rq_starved:
- if (unlikely(rl->count[is_sync] == 0))
- rl->starved[is_sync] = 1;
+ rq->elv.icq = icq;
+ if (unlikely(elv_set_request(q, rq, bio, gfp_mask)))
+ goto fail_elvpriv;
- goto out;
+ /* @rq->elv.icq holds io_context until @rq is freed */
+ if (icq)
+ get_io_context(icq->ioc);
}
-
+out:
/*
* ioc may be NULL here, and ioc_batching will be false. That's
* OK, if the queue is under the request limit then requests need
ioc->nr_batch_requests--;
trace_block_getrq(q, bio, rw_flags & 1);
-out:
return rq;
+
+fail_elvpriv:
+ /*
+ * elvpriv init failed. ioc, icq and elvpriv aren't mempool backed
+ * and may fail indefinitely under memory pressure and thus
+ * shouldn't stall IO. Treat this request as !elvpriv. This will
+ * disturb iosched and blkcg but weird is bettern than dead.
+ */
+ printk_ratelimited(KERN_WARNING "%s: request aux data allocation failed, iosched may be disturbed\n",
+ dev_name(q->backing_dev_info.dev));
+
+ rq->cmd_flags &= ~REQ_ELVPRIV;
+ rq->elv.icq = NULL;
+
+ spin_lock_irq(q->queue_lock);
+ rl->elvpriv--;
+ spin_unlock_irq(q->queue_lock);
+ goto out;
+
+fail_alloc:
+ /*
+ * Allocation failed presumably due to memory. Undo anything we
+ * might have messed up.
+ *
+ * Allocating task should really be put onto the front of the wait
+ * queue, but this is pretty rare.
+ */
+ spin_lock_irq(q->queue_lock);
+ freed_request(q, rw_flags);
+
+ /*
+ * in the very unlikely event that allocation failed and no
+ * requests for this direction was pending, mark us starved so that
+ * freeing of a request in the other direction will notice
+ * us. another possible fix would be to split the rq mempool into
+ * READ and WRITE
+ */
+rq_starved:
+ if (unlikely(rl->count[is_sync] == 0))
+ rl->starved[is_sync] = 1;
+ return NULL;
}
/**
* up to a big batch of them for a small period time.
* See ioc_batching, ioc_set_batching
*/
- create_io_context(current, GFP_NOIO, q->node);
+ create_io_context(GFP_NOIO, q->node);
ioc_set_batching(q, current->io_context);
spin_lock_irq(q->queue_lock);
}
EXPORT_SYMBOL(put_io_context);
-/* Called by the exiting task */
-void exit_io_context(struct task_struct *task)
+/**
+ * put_io_context_active - put active reference on ioc
+ * @ioc: ioc of interest
+ *
+ * Undo get_io_context_active(). If active reference reaches zero after
+ * put, @ioc can never issue further IOs and ioscheds are notified.
+ */
+void put_io_context_active(struct io_context *ioc)
{
- struct io_context *ioc;
- struct io_cq *icq;
struct hlist_node *n;
unsigned long flags;
+ struct io_cq *icq;
- task_lock(task);
- ioc = task->io_context;
- task->io_context = NULL;
- task_unlock(task);
-
- if (!atomic_dec_and_test(&ioc->nr_tasks)) {
+ if (!atomic_dec_and_test(&ioc->active_ref)) {
put_io_context(ioc);
return;
}
put_io_context(ioc);
}
+/* Called by the exiting task */
+void exit_io_context(struct task_struct *task)
+{
+ struct io_context *ioc;
+
+ task_lock(task);
+ ioc = task->io_context;
+ task->io_context = NULL;
+ task_unlock(task);
+
+ atomic_dec(&ioc->nr_tasks);
+ put_io_context_active(ioc);
+}
+
/**
* ioc_clear_queue - break any ioc association with the specified queue
* @q: request_queue being cleared
}
}
-void create_io_context_slowpath(struct task_struct *task, gfp_t gfp_flags,
- int node)
+int create_task_io_context(struct task_struct *task, gfp_t gfp_flags, int node)
{
struct io_context *ioc;
+ int ret;
ioc = kmem_cache_alloc_node(iocontext_cachep, gfp_flags | __GFP_ZERO,
node);
if (unlikely(!ioc))
- return;
+ return -ENOMEM;
/* initialize */
atomic_long_set(&ioc->refcount, 1);
- atomic_set(&ioc->nr_tasks, 1);
+ atomic_set(&ioc->active_ref, 1);
spin_lock_init(&ioc->lock);
INIT_RADIX_TREE(&ioc->icq_tree, GFP_ATOMIC | __GFP_HIGH);
INIT_HLIST_HEAD(&ioc->icq_list);
task->io_context = ioc;
else
kmem_cache_free(iocontext_cachep, ioc);
+
+ ret = task->io_context ? 0 : -EBUSY;
+
task_unlock(task);
+
+ return ret;
}
/**
return ioc;
}
task_unlock(task);
- } while (create_io_context(task, gfp_flags, node));
+ } while (!create_task_io_context(task, gfp_flags, node));
return NULL;
}
/**
* ioc_create_icq - create and link io_cq
+ * @ioc: io_context of interest
* @q: request_queue of interest
* @gfp_mask: allocation mask
*
- * Make sure io_cq linking %current->io_context and @q exists. If either
- * io_context and/or icq don't exist, they will be created using @gfp_mask.
+ * Make sure io_cq linking @ioc and @q exists. If icq doesn't exist, they
+ * will be created using @gfp_mask.
*
* The caller is responsible for ensuring @ioc won't go away and @q is
* alive and will stay alive until this function returns.
*/
-struct io_cq *ioc_create_icq(struct request_queue *q, gfp_t gfp_mask)
+struct io_cq *ioc_create_icq(struct io_context *ioc, struct request_queue *q,
+ gfp_t gfp_mask)
{
struct elevator_type *et = q->elevator->type;
- struct io_context *ioc;
struct io_cq *icq;
/* allocate stuff */
- ioc = create_io_context(current, gfp_mask, q->node);
- if (!ioc)
- return NULL;
-
icq = kmem_cache_alloc_node(et->icq_cache, gfp_mask | __GFP_ZERO,
q->node);
if (!icq)
return icq;
}
-void ioc_set_icq_flags(struct io_context *ioc, unsigned int flags)
-{
- struct io_cq *icq;
- struct hlist_node *n;
-
- hlist_for_each_entry(icq, n, &ioc->icq_list, ioc_node)
- icq->flags |= flags;
-}
-
-/**
- * ioc_ioprio_changed - notify ioprio change
- * @ioc: io_context of interest
- * @ioprio: new ioprio
- *
- * @ioc's ioprio has changed to @ioprio. Set %ICQ_IOPRIO_CHANGED for all
- * icq's. iosched is responsible for checking the bit and applying it on
- * request issue path.
- */
-void ioc_ioprio_changed(struct io_context *ioc, int ioprio)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&ioc->lock, flags);
- ioc->ioprio = ioprio;
- ioc_set_icq_flags(ioc, ICQ_IOPRIO_CHANGED);
- spin_unlock_irqrestore(&ioc->lock, flags);
-}
-
-/**
- * ioc_cgroup_changed - notify cgroup change
- * @ioc: io_context of interest
- *
- * @ioc's cgroup has changed. Set %ICQ_CGROUP_CHANGED for all icq's.
- * iosched is responsible for checking the bit and applying it on request
- * issue path.
- */
-void ioc_cgroup_changed(struct io_context *ioc)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&ioc->lock, flags);
- ioc_set_icq_flags(ioc, ICQ_CGROUP_CHANGED);
- spin_unlock_irqrestore(&ioc->lock, flags);
-}
-EXPORT_SYMBOL(ioc_cgroup_changed);
-
-/**
- * icq_get_changed - fetch and clear icq changed mask
- * @icq: icq of interest
- *
- * Fetch and clear ICQ_*_CHANGED bits from @icq. Grabs and releases
- * @icq->ioc->lock.
- */
-unsigned icq_get_changed(struct io_cq *icq)
-{
- unsigned int changed = 0;
- unsigned long flags;
-
- if (unlikely(icq->flags & ICQ_CHANGED_MASK)) {
- spin_lock_irqsave(&icq->ioc->lock, flags);
- changed = icq->flags & ICQ_CHANGED_MASK;
- icq->flags &= ~ICQ_CHANGED_MASK;
- spin_unlock_irqrestore(&icq->ioc->lock, flags);
- }
- return changed;
-}
-EXPORT_SYMBOL(icq_get_changed);
-
static int __init blk_ioc_init(void)
{
iocontext_cachep = kmem_cache_create("blkdev_ioc",
#include <linux/blktrace_api.h>
#include "blk.h"
+#include "blk-cgroup.h"
struct queue_sysfs_entry {
struct attribute attr;
blk_sync_queue(q);
+ blkcg_exit_queue(q);
+
if (q->elevator) {
spin_lock_irq(q->queue_lock);
ioc_clear_queue(q);
elevator_exit(q->elevator);
}
- blk_throtl_exit(q);
-
if (rl->rq_pool)
mempool_destroy(rl->rq_pool);
if (q->queue_tags)
__blk_queue_free_tags(q);
- blk_throtl_release(q);
blk_trace_shutdown(q);
bdi_destroy(&q->backing_dev_info);
/* Throttling is performed over 100ms slice and after that slice is renewed */
static unsigned long throtl_slice = HZ/10; /* 100 ms */
+static struct blkcg_policy blkcg_policy_throtl;
+
/* A workqueue to queue throttle related work */
static struct workqueue_struct *kthrotld_workqueue;
static void throtl_schedule_delayed_work(struct throtl_data *td,
#define rb_entry_tg(node) rb_entry((node), struct throtl_grp, rb_node)
+/* Per-cpu group stats */
+struct tg_stats_cpu {
+ /* total bytes transferred */
+ struct blkg_rwstat service_bytes;
+ /* total IOs serviced, post merge */
+ struct blkg_rwstat serviced;
+};
+
struct throtl_grp {
- /* List of throtl groups on the request queue*/
- struct hlist_node tg_node;
+ /* must be the first member */
+ struct blkg_policy_data pd;
/* active throtl group service_tree member */
struct rb_node rb_node;
*/
unsigned long disptime;
- struct blkio_group blkg;
- atomic_t ref;
unsigned int flags;
/* Two lists for READ and WRITE */
/* Some throttle limits got updated for the group */
int limits_changed;
- struct rcu_head rcu_head;
+ /* Per cpu stats pointer */
+ struct tg_stats_cpu __percpu *stats_cpu;
+
+ /* List of tgs waiting for per cpu stats memory to be allocated */
+ struct list_head stats_alloc_node;
};
struct throtl_data
{
- /* List of throtl groups */
- struct hlist_head tg_list;
-
/* service tree for active throtl groups */
struct throtl_rb_root tg_service_tree;
- struct throtl_grp *root_tg;
struct request_queue *queue;
/* Total Number of queued bios on READ and WRITE lists */
int limits_changed;
};
+/* list and work item to allocate percpu group stats */
+static DEFINE_SPINLOCK(tg_stats_alloc_lock);
+static LIST_HEAD(tg_stats_alloc_list);
+
+static void tg_stats_alloc_fn(struct work_struct *);
+static DECLARE_DELAYED_WORK(tg_stats_alloc_work, tg_stats_alloc_fn);
+
+static inline struct throtl_grp *pd_to_tg(struct blkg_policy_data *pd)
+{
+ return pd ? container_of(pd, struct throtl_grp, pd) : NULL;
+}
+
+static inline struct throtl_grp *blkg_to_tg(struct blkcg_gq *blkg)
+{
+ return pd_to_tg(blkg_to_pd(blkg, &blkcg_policy_throtl));
+}
+
+static inline struct blkcg_gq *tg_to_blkg(struct throtl_grp *tg)
+{
+ return pd_to_blkg(&tg->pd);
+}
+
+static inline struct throtl_grp *td_root_tg(struct throtl_data *td)
+{
+ return blkg_to_tg(td->queue->root_blkg);
+}
+
enum tg_state_flags {
THROTL_TG_FLAG_on_rr = 0, /* on round-robin busy list */
};
THROTL_TG_FNS(on_rr);
-#define throtl_log_tg(td, tg, fmt, args...) \
- blk_add_trace_msg((td)->queue, "throtl %s " fmt, \
- blkg_path(&(tg)->blkg), ##args); \
+#define throtl_log_tg(td, tg, fmt, args...) do { \
+ char __pbuf[128]; \
+ \
+ blkg_path(tg_to_blkg(tg), __pbuf, sizeof(__pbuf)); \
+ blk_add_trace_msg((td)->queue, "throtl %s " fmt, __pbuf, ##args); \
+} while (0)
#define throtl_log(td, fmt, args...) \
blk_add_trace_msg((td)->queue, "throtl " fmt, ##args)
-static inline struct throtl_grp *tg_of_blkg(struct blkio_group *blkg)
-{
- if (blkg)
- return container_of(blkg, struct throtl_grp, blkg);
-
- return NULL;
-}
-
static inline unsigned int total_nr_queued(struct throtl_data *td)
{
return td->nr_queued[0] + td->nr_queued[1];
}
-static inline struct throtl_grp *throtl_ref_get_tg(struct throtl_grp *tg)
-{
- atomic_inc(&tg->ref);
- return tg;
-}
-
-static void throtl_free_tg(struct rcu_head *head)
+/*
+ * Worker for allocating per cpu stat for tgs. This is scheduled on the
+ * system_nrt_wq once there are some groups on the alloc_list waiting for
+ * allocation.
+ */
+static void tg_stats_alloc_fn(struct work_struct *work)
{
- struct throtl_grp *tg;
+ static struct tg_stats_cpu *stats_cpu; /* this fn is non-reentrant */
+ struct delayed_work *dwork = to_delayed_work(work);
+ bool empty = false;
+
+alloc_stats:
+ if (!stats_cpu) {
+ stats_cpu = alloc_percpu(struct tg_stats_cpu);
+ if (!stats_cpu) {
+ /* allocation failed, try again after some time */
+ queue_delayed_work(system_nrt_wq, dwork,
+ msecs_to_jiffies(10));
+ return;
+ }
+ }
- tg = container_of(head, struct throtl_grp, rcu_head);
- free_percpu(tg->blkg.stats_cpu);
- kfree(tg);
-}
+ spin_lock_irq(&tg_stats_alloc_lock);
-static void throtl_put_tg(struct throtl_grp *tg)
-{
- BUG_ON(atomic_read(&tg->ref) <= 0);
- if (!atomic_dec_and_test(&tg->ref))
- return;
+ if (!list_empty(&tg_stats_alloc_list)) {
+ struct throtl_grp *tg = list_first_entry(&tg_stats_alloc_list,
+ struct throtl_grp,
+ stats_alloc_node);
+ swap(tg->stats_cpu, stats_cpu);
+ list_del_init(&tg->stats_alloc_node);
+ }
- /*
- * A group is freed in rcu manner. But having an rcu lock does not
- * mean that one can access all the fields of blkg and assume these
- * are valid. For example, don't try to follow throtl_data and
- * request queue links.
- *
- * Having a reference to blkg under an rcu allows acess to only
- * values local to groups like group stats and group rate limits
- */
- call_rcu(&tg->rcu_head, throtl_free_tg);
+ empty = list_empty(&tg_stats_alloc_list);
+ spin_unlock_irq(&tg_stats_alloc_lock);
+ if (!empty)
+ goto alloc_stats;
}
-static void throtl_init_group(struct throtl_grp *tg)
+static void throtl_pd_init(struct blkcg_gq *blkg)
{
- INIT_HLIST_NODE(&tg->tg_node);
+ struct throtl_grp *tg = blkg_to_tg(blkg);
+ unsigned long flags;
+
RB_CLEAR_NODE(&tg->rb_node);
bio_list_init(&tg->bio_lists[0]);
bio_list_init(&tg->bio_lists[1]);
tg->limits_changed = false;
- /* Practically unlimited BW */
- tg->bps[0] = tg->bps[1] = -1;
- tg->iops[0] = tg->iops[1] = -1;
+ tg->bps[READ] = -1;
+ tg->bps[WRITE] = -1;
+ tg->iops[READ] = -1;
+ tg->iops[WRITE] = -1;
/*
- * Take the initial reference that will be released on destroy
- * This can be thought of a joint reference by cgroup and
- * request queue which will be dropped by either request queue
- * exit or cgroup deletion path depending on who is exiting first.
+ * Ugh... We need to perform per-cpu allocation for tg->stats_cpu
+ * but percpu allocator can't be called from IO path. Queue tg on
+ * tg_stats_alloc_list and allocate from work item.
*/
- atomic_set(&tg->ref, 1);
+ spin_lock_irqsave(&tg_stats_alloc_lock, flags);
+ list_add(&tg->stats_alloc_node, &tg_stats_alloc_list);
+ queue_delayed_work(system_nrt_wq, &tg_stats_alloc_work, 0);
+ spin_unlock_irqrestore(&tg_stats_alloc_lock, flags);
}
-/* Should be called with rcu read lock held (needed for blkcg) */
-static void
-throtl_add_group_to_td_list(struct throtl_data *td, struct throtl_grp *tg)
+static void throtl_pd_exit(struct blkcg_gq *blkg)
{
- hlist_add_head(&tg->tg_node, &td->tg_list);
- td->nr_undestroyed_grps++;
-}
-
-static void
-__throtl_tg_fill_dev_details(struct throtl_data *td, struct throtl_grp *tg)
-{
- struct backing_dev_info *bdi = &td->queue->backing_dev_info;
- unsigned int major, minor;
-
- if (!tg || tg->blkg.dev)
- return;
-
- /*
- * Fill in device details for a group which might not have been
- * filled at group creation time as queue was being instantiated
- * and driver had not attached a device yet
- */
- if (bdi->dev && dev_name(bdi->dev)) {
- sscanf(dev_name(bdi->dev), "%u:%u", &major, &minor);
- tg->blkg.dev = MKDEV(major, minor);
- }
-}
-
-/*
- * Should be called with without queue lock held. Here queue lock will be
- * taken rarely. It will be taken only once during life time of a group
- * if need be
- */
-static void
-throtl_tg_fill_dev_details(struct throtl_data *td, struct throtl_grp *tg)
-{
- if (!tg || tg->blkg.dev)
- return;
-
- spin_lock_irq(td->queue->queue_lock);
- __throtl_tg_fill_dev_details(td, tg);
- spin_unlock_irq(td->queue->queue_lock);
-}
-
-static void throtl_init_add_tg_lists(struct throtl_data *td,
- struct throtl_grp *tg, struct blkio_cgroup *blkcg)
-{
- __throtl_tg_fill_dev_details(td, tg);
-
- /* Add group onto cgroup list */
- blkiocg_add_blkio_group(blkcg, &tg->blkg, (void *)td,
- tg->blkg.dev, BLKIO_POLICY_THROTL);
+ struct throtl_grp *tg = blkg_to_tg(blkg);
+ unsigned long flags;
- tg->bps[READ] = blkcg_get_read_bps(blkcg, tg->blkg.dev);
- tg->bps[WRITE] = blkcg_get_write_bps(blkcg, tg->blkg.dev);
- tg->iops[READ] = blkcg_get_read_iops(blkcg, tg->blkg.dev);
- tg->iops[WRITE] = blkcg_get_write_iops(blkcg, tg->blkg.dev);
+ spin_lock_irqsave(&tg_stats_alloc_lock, flags);
+ list_del_init(&tg->stats_alloc_node);
+ spin_unlock_irqrestore(&tg_stats_alloc_lock, flags);
- throtl_add_group_to_td_list(td, tg);
+ free_percpu(tg->stats_cpu);
}
-/* Should be called without queue lock and outside of rcu period */
-static struct throtl_grp *throtl_alloc_tg(struct throtl_data *td)
+static void throtl_pd_reset_stats(struct blkcg_gq *blkg)
{
- struct throtl_grp *tg = NULL;
- int ret;
+ struct throtl_grp *tg = blkg_to_tg(blkg);
+ int cpu;
- tg = kzalloc_node(sizeof(*tg), GFP_ATOMIC, td->queue->node);
- if (!tg)
- return NULL;
+ if (tg->stats_cpu == NULL)
+ return;
- ret = blkio_alloc_blkg_stats(&tg->blkg);
+ for_each_possible_cpu(cpu) {
+ struct tg_stats_cpu *sc = per_cpu_ptr(tg->stats_cpu, cpu);
- if (ret) {
- kfree(tg);
- return NULL;
+ blkg_rwstat_reset(&sc->service_bytes);
+ blkg_rwstat_reset(&sc->serviced);
}
-
- throtl_init_group(tg);
- return tg;
}
-static struct
-throtl_grp *throtl_find_tg(struct throtl_data *td, struct blkio_cgroup *blkcg)
+static struct throtl_grp *throtl_lookup_tg(struct throtl_data *td,
+ struct blkcg *blkcg)
{
- struct throtl_grp *tg = NULL;
- void *key = td;
-
/*
- * This is the common case when there are no blkio cgroups.
- * Avoid lookup in this case
- */
- if (blkcg == &blkio_root_cgroup)
- tg = td->root_tg;
- else
- tg = tg_of_blkg(blkiocg_lookup_group(blkcg, key));
+ * This is the common case when there are no blkcgs. Avoid lookup
+ * in this case
+ */
+ if (blkcg == &blkcg_root)
+ return td_root_tg(td);
- __throtl_tg_fill_dev_details(td, tg);
- return tg;
+ return blkg_to_tg(blkg_lookup(blkcg, td->queue));
}
-static struct throtl_grp * throtl_get_tg(struct throtl_data *td)
+static struct throtl_grp *throtl_lookup_create_tg(struct throtl_data *td,
+ struct blkcg *blkcg)
{
- struct throtl_grp *tg = NULL, *__tg = NULL;
- struct blkio_cgroup *blkcg;
struct request_queue *q = td->queue;
-
- /* no throttling for dead queue */
- if (unlikely(blk_queue_dead(q)))
- return NULL;
-
- rcu_read_lock();
- blkcg = task_blkio_cgroup(current);
- tg = throtl_find_tg(td, blkcg);
- if (tg) {
- rcu_read_unlock();
- return tg;
- }
-
- /*
- * Need to allocate a group. Allocation of group also needs allocation
- * of per cpu stats which in-turn takes a mutex() and can block. Hence
- * we need to drop rcu lock and queue_lock before we call alloc.
- */
- rcu_read_unlock();
- spin_unlock_irq(q->queue_lock);
-
- tg = throtl_alloc_tg(td);
-
- /* Group allocated and queue is still alive. take the lock */
- spin_lock_irq(q->queue_lock);
-
- /* Make sure @q is still alive */
- if (unlikely(blk_queue_dead(q))) {
- kfree(tg);
- return NULL;
- }
-
- /*
- * Initialize the new group. After sleeping, read the blkcg again.
- */
- rcu_read_lock();
- blkcg = task_blkio_cgroup(current);
+ struct throtl_grp *tg = NULL;
/*
- * If some other thread already allocated the group while we were
- * not holding queue lock, free up the group
+ * This is the common case when there are no blkcgs. Avoid lookup
+ * in this case
*/
- __tg = throtl_find_tg(td, blkcg);
-
- if (__tg) {
- kfree(tg);
- rcu_read_unlock();
- return __tg;
- }
-
- /* Group allocation failed. Account the IO to root group */
- if (!tg) {
- tg = td->root_tg;
- return tg;
+ if (blkcg == &blkcg_root) {
+ tg = td_root_tg(td);
+ } else {
+ struct blkcg_gq *blkg;
+
+ blkg = blkg_lookup_create(blkcg, q);
+
+ /* if %NULL and @q is alive, fall back to root_tg */
+ if (!IS_ERR(blkg))
+ tg = blkg_to_tg(blkg);
+ else if (!blk_queue_dead(q))
+ tg = td_root_tg(td);
}
- throtl_init_add_tg_lists(td, tg, blkcg);
- rcu_read_unlock();
return tg;
}
return 0;
}
+static void throtl_update_dispatch_stats(struct blkcg_gq *blkg, u64 bytes,
+ int rw)
+{
+ struct throtl_grp *tg = blkg_to_tg(blkg);
+ struct tg_stats_cpu *stats_cpu;
+ unsigned long flags;
+
+ /* If per cpu stats are not allocated yet, don't do any accounting. */
+ if (tg->stats_cpu == NULL)
+ return;
+
+ /*
+ * Disabling interrupts to provide mutual exclusion between two
+ * writes on same cpu. It probably is not needed for 64bit. Not
+ * optimizing that case yet.
+ */
+ local_irq_save(flags);
+
+ stats_cpu = this_cpu_ptr(tg->stats_cpu);
+
+ blkg_rwstat_add(&stats_cpu->serviced, rw, 1);
+ blkg_rwstat_add(&stats_cpu->service_bytes, rw, bytes);
+
+ local_irq_restore(flags);
+}
+
static void throtl_charge_bio(struct throtl_grp *tg, struct bio *bio)
{
bool rw = bio_data_dir(bio);
- bool sync = rw_is_sync(bio->bi_rw);
/* Charge the bio to the group */
tg->bytes_disp[rw] += bio->bi_size;
tg->io_disp[rw]++;
- blkiocg_update_dispatch_stats(&tg->blkg, bio->bi_size, rw, sync);
+ throtl_update_dispatch_stats(tg_to_blkg(tg), bio->bi_size, bio->bi_rw);
}
static void throtl_add_bio_tg(struct throtl_data *td, struct throtl_grp *tg,
bio_list_add(&tg->bio_lists[rw], bio);
/* Take a bio reference on tg */
- throtl_ref_get_tg(tg);
+ blkg_get(tg_to_blkg(tg));
tg->nr_queued[rw]++;
td->nr_queued[rw]++;
throtl_enqueue_tg(td, tg);
bio = bio_list_pop(&tg->bio_lists[rw]);
tg->nr_queued[rw]--;
- /* Drop bio reference on tg */
- throtl_put_tg(tg);
+ /* Drop bio reference on blkg */
+ blkg_put(tg_to_blkg(tg));
BUG_ON(td->nr_queued[rw] <= 0);
td->nr_queued[rw]--;
static void throtl_process_limit_change(struct throtl_data *td)
{
- struct throtl_grp *tg;
- struct hlist_node *pos, *n;
+ struct request_queue *q = td->queue;
+ struct blkcg_gq *blkg, *n;
if (!td->limits_changed)
return;
throtl_log(td, "limits changed");
- hlist_for_each_entry_safe(tg, pos, n, &td->tg_list, tg_node) {
+ list_for_each_entry_safe(blkg, n, &q->blkg_list, q_node) {
+ struct throtl_grp *tg = blkg_to_tg(blkg);
+
if (!tg->limits_changed)
continue;
}
}
-static void
-throtl_destroy_tg(struct throtl_data *td, struct throtl_grp *tg)
+static u64 tg_prfill_cpu_rwstat(struct seq_file *sf,
+ struct blkg_policy_data *pd, int off)
{
- /* Something wrong if we are trying to remove same group twice */
- BUG_ON(hlist_unhashed(&tg->tg_node));
+ struct throtl_grp *tg = pd_to_tg(pd);
+ struct blkg_rwstat rwstat = { }, tmp;
+ int i, cpu;
- hlist_del_init(&tg->tg_node);
+ for_each_possible_cpu(cpu) {
+ struct tg_stats_cpu *sc = per_cpu_ptr(tg->stats_cpu, cpu);
- /*
- * Put the reference taken at the time of creation so that when all
- * queues are gone, group can be destroyed.
- */
- throtl_put_tg(tg);
- td->nr_undestroyed_grps--;
+ tmp = blkg_rwstat_read((void *)sc + off);
+ for (i = 0; i < BLKG_RWSTAT_NR; i++)
+ rwstat.cnt[i] += tmp.cnt[i];
+ }
+
+ return __blkg_prfill_rwstat(sf, pd, &rwstat);
}
-static void throtl_release_tgs(struct throtl_data *td)
+static int tg_print_cpu_rwstat(struct cgroup *cgrp, struct cftype *cft,
+ struct seq_file *sf)
{
- struct hlist_node *pos, *n;
- struct throtl_grp *tg;
+ struct blkcg *blkcg = cgroup_to_blkcg(cgrp);
- hlist_for_each_entry_safe(tg, pos, n, &td->tg_list, tg_node) {
- /*
- * If cgroup removal path got to blk_group first and removed
- * it from cgroup list, then it will take care of destroying
- * cfqg also.
- */
- if (!blkiocg_del_blkio_group(&tg->blkg))
- throtl_destroy_tg(td, tg);
- }
+ blkcg_print_blkgs(sf, blkcg, tg_prfill_cpu_rwstat, &blkcg_policy_throtl,
+ cft->private, true);
+ return 0;
}
-/*
- * Blk cgroup controller notification saying that blkio_group object is being
- * delinked as associated cgroup object is going away. That also means that
- * no new IO will come in this group. So get rid of this group as soon as
- * any pending IO in the group is finished.
- *
- * This function is called under rcu_read_lock(). key is the rcu protected
- * pointer. That means "key" is a valid throtl_data pointer as long as we are
- * rcu read lock.
- *
- * "key" was fetched from blkio_group under blkio_cgroup->lock. That means
- * it should not be NULL as even if queue was going away, cgroup deltion
- * path got to it first.
- */
-void throtl_unlink_blkio_group(void *key, struct blkio_group *blkg)
+static u64 tg_prfill_conf_u64(struct seq_file *sf, struct blkg_policy_data *pd,
+ int off)
{
- unsigned long flags;
- struct throtl_data *td = key;
+ struct throtl_grp *tg = pd_to_tg(pd);
+ u64 v = *(u64 *)((void *)tg + off);
- spin_lock_irqsave(td->queue->queue_lock, flags);
- throtl_destroy_tg(td, tg_of_blkg(blkg));
- spin_unlock_irqrestore(td->queue->queue_lock, flags);
+ if (v == -1)
+ return 0;
+ return __blkg_prfill_u64(sf, pd, v);
}
-static void throtl_update_blkio_group_common(struct throtl_data *td,
- struct throtl_grp *tg)
+static u64 tg_prfill_conf_uint(struct seq_file *sf, struct blkg_policy_data *pd,
+ int off)
{
- xchg(&tg->limits_changed, true);
- xchg(&td->limits_changed, true);
- /* Schedule a work now to process the limit change */
- throtl_schedule_delayed_work(td, 0);
+ struct throtl_grp *tg = pd_to_tg(pd);
+ unsigned int v = *(unsigned int *)((void *)tg + off);
+
+ if (v == -1)
+ return 0;
+ return __blkg_prfill_u64(sf, pd, v);
}
-/*
- * For all update functions, key should be a valid pointer because these
- * update functions are called under blkcg_lock, that means, blkg is
- * valid and in turn key is valid. queue exit path can not race because
- * of blkcg_lock
- *
- * Can not take queue lock in update functions as queue lock under blkcg_lock
- * is not allowed. Under other paths we take blkcg_lock under queue_lock.
- */
-static void throtl_update_blkio_group_read_bps(void *key,
- struct blkio_group *blkg, u64 read_bps)
+static int tg_print_conf_u64(struct cgroup *cgrp, struct cftype *cft,
+ struct seq_file *sf)
{
- struct throtl_data *td = key;
- struct throtl_grp *tg = tg_of_blkg(blkg);
-
- tg->bps[READ] = read_bps;
- throtl_update_blkio_group_common(td, tg);
+ blkcg_print_blkgs(sf, cgroup_to_blkcg(cgrp), tg_prfill_conf_u64,
+ &blkcg_policy_throtl, cft->private, false);
+ return 0;
}
-static void throtl_update_blkio_group_write_bps(void *key,
- struct blkio_group *blkg, u64 write_bps)
+static int tg_print_conf_uint(struct cgroup *cgrp, struct cftype *cft,
+ struct seq_file *sf)
{
- struct throtl_data *td = key;
- struct throtl_grp *tg = tg_of_blkg(blkg);
-
- tg->bps[WRITE] = write_bps;
- throtl_update_blkio_group_common(td, tg);
+ blkcg_print_blkgs(sf, cgroup_to_blkcg(cgrp), tg_prfill_conf_uint,
+ &blkcg_policy_throtl, cft->private, false);
+ return 0;
}
-static void throtl_update_blkio_group_read_iops(void *key,
- struct blkio_group *blkg, unsigned int read_iops)
+static int tg_set_conf(struct cgroup *cgrp, struct cftype *cft, const char *buf,
+ bool is_u64)
{
- struct throtl_data *td = key;
- struct throtl_grp *tg = tg_of_blkg(blkg);
+ struct blkcg *blkcg = cgroup_to_blkcg(cgrp);
+ struct blkg_conf_ctx ctx;
+ struct throtl_grp *tg;
+ struct throtl_data *td;
+ int ret;
+
+ ret = blkg_conf_prep(blkcg, &blkcg_policy_throtl, buf, &ctx);
+ if (ret)
+ return ret;
+
+ tg = blkg_to_tg(ctx.blkg);
+ td = ctx.blkg->q->td;
+
+ if (!ctx.v)
+ ctx.v = -1;
+
+ if (is_u64)
+ *(u64 *)((void *)tg + cft->private) = ctx.v;
+ else
+ *(unsigned int *)((void *)tg + cft->private) = ctx.v;
+
+ /* XXX: we don't need the following deferred processing */
+ xchg(&tg->limits_changed, true);
+ xchg(&td->limits_changed, true);
+ throtl_schedule_delayed_work(td, 0);
- tg->iops[READ] = read_iops;
- throtl_update_blkio_group_common(td, tg);
+ blkg_conf_finish(&ctx);
+ return 0;
}
-static void throtl_update_blkio_group_write_iops(void *key,
- struct blkio_group *blkg, unsigned int write_iops)
+static int tg_set_conf_u64(struct cgroup *cgrp, struct cftype *cft,
+ const char *buf)
{
- struct throtl_data *td = key;
- struct throtl_grp *tg = tg_of_blkg(blkg);
+ return tg_set_conf(cgrp, cft, buf, true);
+}
- tg->iops[WRITE] = write_iops;
- throtl_update_blkio_group_common(td, tg);
+static int tg_set_conf_uint(struct cgroup *cgrp, struct cftype *cft,
+ const char *buf)
+{
+ return tg_set_conf(cgrp, cft, buf, false);
}
+static struct cftype throtl_files[] = {
+ {
+ .name = "throttle.read_bps_device",
+ .private = offsetof(struct throtl_grp, bps[READ]),
+ .read_seq_string = tg_print_conf_u64,
+ .write_string = tg_set_conf_u64,
+ .max_write_len = 256,
+ },
+ {
+ .name = "throttle.write_bps_device",
+ .private = offsetof(struct throtl_grp, bps[WRITE]),
+ .read_seq_string = tg_print_conf_u64,
+ .write_string = tg_set_conf_u64,
+ .max_write_len = 256,
+ },
+ {
+ .name = "throttle.read_iops_device",
+ .private = offsetof(struct throtl_grp, iops[READ]),
+ .read_seq_string = tg_print_conf_uint,
+ .write_string = tg_set_conf_uint,
+ .max_write_len = 256,
+ },
+ {
+ .name = "throttle.write_iops_device",
+ .private = offsetof(struct throtl_grp, iops[WRITE]),
+ .read_seq_string = tg_print_conf_uint,
+ .write_string = tg_set_conf_uint,
+ .max_write_len = 256,
+ },
+ {
+ .name = "throttle.io_service_bytes",
+ .private = offsetof(struct tg_stats_cpu, service_bytes),
+ .read_seq_string = tg_print_cpu_rwstat,
+ },
+ {
+ .name = "throttle.io_serviced",
+ .private = offsetof(struct tg_stats_cpu, serviced),
+ .read_seq_string = tg_print_cpu_rwstat,
+ },
+ { } /* terminate */
+};
+
static void throtl_shutdown_wq(struct request_queue *q)
{
struct throtl_data *td = q->td;
cancel_delayed_work_sync(&td->throtl_work);
}
-static struct blkio_policy_type blkio_policy_throtl = {
- .ops = {
- .blkio_unlink_group_fn = throtl_unlink_blkio_group,
- .blkio_update_group_read_bps_fn =
- throtl_update_blkio_group_read_bps,
- .blkio_update_group_write_bps_fn =
- throtl_update_blkio_group_write_bps,
- .blkio_update_group_read_iops_fn =
- throtl_update_blkio_group_read_iops,
- .blkio_update_group_write_iops_fn =
- throtl_update_blkio_group_write_iops,
- },
- .plid = BLKIO_POLICY_THROTL,
+static struct blkcg_policy blkcg_policy_throtl = {
+ .pd_size = sizeof(struct throtl_grp),
+ .cftypes = throtl_files,
+
+ .pd_init_fn = throtl_pd_init,
+ .pd_exit_fn = throtl_pd_exit,
+ .pd_reset_stats_fn = throtl_pd_reset_stats,
};
bool blk_throtl_bio(struct request_queue *q, struct bio *bio)
struct throtl_data *td = q->td;
struct throtl_grp *tg;
bool rw = bio_data_dir(bio), update_disptime = true;
- struct blkio_cgroup *blkcg;
+ struct blkcg *blkcg;
bool throttled = false;
if (bio->bi_rw & REQ_THROTTLED) {
goto out;
}
+ /* bio_associate_current() needs ioc, try creating */
+ create_io_context(GFP_ATOMIC, q->node);
+
/*
* A throtl_grp pointer retrieved under rcu can be used to access
* basic fields like stats and io rates. If a group has no rules,
* just update the dispatch stats in lockless manner and return.
*/
-
rcu_read_lock();
- blkcg = task_blkio_cgroup(current);
- tg = throtl_find_tg(td, blkcg);
+ blkcg = bio_blkcg(bio);
+ tg = throtl_lookup_tg(td, blkcg);
if (tg) {
- throtl_tg_fill_dev_details(td, tg);
-
if (tg_no_rule_group(tg, rw)) {
- blkiocg_update_dispatch_stats(&tg->blkg, bio->bi_size,
- rw, rw_is_sync(bio->bi_rw));
- rcu_read_unlock();
- goto out;
+ throtl_update_dispatch_stats(tg_to_blkg(tg),
+ bio->bi_size, bio->bi_rw);
+ goto out_unlock_rcu;
}
}
- rcu_read_unlock();
/*
* Either group has not been allocated yet or it is not an unlimited
* IO group
*/
spin_lock_irq(q->queue_lock);
- tg = throtl_get_tg(td);
+ tg = throtl_lookup_create_tg(td, blkcg);
if (unlikely(!tg))
goto out_unlock;
tg->io_disp[rw], tg->iops[rw],
tg->nr_queued[READ], tg->nr_queued[WRITE]);
+ bio_associate_current(bio);
throtl_add_bio_tg(q->td, tg, bio);
throttled = true;
out_unlock:
spin_unlock_irq(q->queue_lock);
+out_unlock_rcu:
+ rcu_read_unlock();
out:
return throttled;
}
int blk_throtl_init(struct request_queue *q)
{
struct throtl_data *td;
- struct throtl_grp *tg;
+ int ret;
td = kzalloc_node(sizeof(*td), GFP_KERNEL, q->node);
if (!td)
return -ENOMEM;
- INIT_HLIST_HEAD(&td->tg_list);
td->tg_service_tree = THROTL_RB_ROOT;
td->limits_changed = false;
INIT_DELAYED_WORK(&td->throtl_work, blk_throtl_work);
- /* alloc and Init root group. */
+ q->td = td;
td->queue = q;
- tg = throtl_alloc_tg(td);
- if (!tg) {
+ /* activate policy */
+ ret = blkcg_activate_policy(q, &blkcg_policy_throtl);
+ if (ret)
kfree(td);
- return -ENOMEM;
- }
-
- td->root_tg = tg;
-
- rcu_read_lock();
- throtl_init_add_tg_lists(td, tg, &blkio_root_cgroup);
- rcu_read_unlock();
-
- /* Attach throtl data to request queue */
- q->td = td;
- return 0;
+ return ret;
}
void blk_throtl_exit(struct request_queue *q)
{
- struct throtl_data *td = q->td;
- bool wait = false;
-
- BUG_ON(!td);
-
- throtl_shutdown_wq(q);
-
- spin_lock_irq(q->queue_lock);
- throtl_release_tgs(td);
-
- /* If there are other groups */
- if (td->nr_undestroyed_grps > 0)
- wait = true;
-
- spin_unlock_irq(q->queue_lock);
-
- /*
- * Wait for tg->blkg->key accessors to exit their grace periods.
- * Do this wait only if there are other undestroyed groups out
- * there (other than root group). This can happen if cgroup deletion
- * path claimed the responsibility of cleaning up a group before
- * queue cleanup code get to the group.
- *
- * Do not call synchronize_rcu() unconditionally as there are drivers
- * which create/delete request queue hundreds of times during scan/boot
- * and synchronize_rcu() can take significant time and slow down boot.
- */
- if (wait)
- synchronize_rcu();
-
- /*
- * Just being safe to make sure after previous flush if some body did
- * update limits through cgroup and another work got queued, cancel
- * it.
- */
+ BUG_ON(!q->td);
throtl_shutdown_wq(q);
-}
-
-void blk_throtl_release(struct request_queue *q)
-{
+ blkcg_deactivate_policy(q, &blkcg_policy_throtl);
kfree(q->td);
}
if (!kthrotld_workqueue)
panic("Failed to create kthrotld\n");
- blkio_policy_register(&blkio_policy_throtl);
- return 0;
+ return blkcg_policy_register(&blkcg_policy_throtl);
}
module_init(throtl_init);
struct bio *bio);
int blk_rq_append_bio(struct request_queue *q, struct request *rq,
struct bio *bio);
-void blk_drain_queue(struct request_queue *q, bool drain_all);
+void blk_queue_bypass_start(struct request_queue *q);
+void blk_queue_bypass_end(struct request_queue *q);
void blk_dequeue_request(struct request *rq);
void __blk_queue_free_tags(struct request_queue *q);
bool __blk_end_bidi_request(struct request *rq, int error,
int blk_dev_init(void);
-void elv_quiesce_start(struct request_queue *q);
-void elv_quiesce_end(struct request_queue *q);
-
/*
* Return the threshold (number of used requests) at which the queue is
*/
void get_io_context(struct io_context *ioc);
struct io_cq *ioc_lookup_icq(struct io_context *ioc, struct request_queue *q);
-struct io_cq *ioc_create_icq(struct request_queue *q, gfp_t gfp_mask);
+struct io_cq *ioc_create_icq(struct io_context *ioc, struct request_queue *q,
+ gfp_t gfp_mask);
void ioc_clear_queue(struct request_queue *q);
-void create_io_context_slowpath(struct task_struct *task, gfp_t gfp_mask,
- int node);
+int create_task_io_context(struct task_struct *task, gfp_t gfp_mask, int node);
/**
* create_io_context - try to create task->io_context
- * @task: target task
* @gfp_mask: allocation mask
* @node: allocation node
*
- * If @task->io_context is %NULL, allocate a new io_context and install it.
- * Returns the current @task->io_context which may be %NULL if allocation
- * failed.
+ * If %current->io_context is %NULL, allocate a new io_context and install
+ * it. Returns the current %current->io_context which may be %NULL if
+ * allocation failed.
*
* Note that this function can't be called with IRQ disabled because
- * task_lock which protects @task->io_context is IRQ-unsafe.
+ * task_lock which protects %current->io_context is IRQ-unsafe.
*/
-static inline struct io_context *create_io_context(struct task_struct *task,
- gfp_t gfp_mask, int node)
+static inline struct io_context *create_io_context(gfp_t gfp_mask, int node)
{
WARN_ON_ONCE(irqs_disabled());
- if (unlikely(!task->io_context))
- create_io_context_slowpath(task, gfp_mask, node);
- return task->io_context;
+ if (unlikely(!current->io_context))
+ create_task_io_context(current, gfp_mask, node);
+ return current->io_context;
}
/*
extern void blk_throtl_drain(struct request_queue *q);
extern int blk_throtl_init(struct request_queue *q);
extern void blk_throtl_exit(struct request_queue *q);
-extern void blk_throtl_release(struct request_queue *q);
#else /* CONFIG_BLK_DEV_THROTTLING */
static inline bool blk_throtl_bio(struct request_queue *q, struct bio *bio)
{
static inline void blk_throtl_drain(struct request_queue *q) { }
static inline int blk_throtl_init(struct request_queue *q) { return 0; }
static inline void blk_throtl_exit(struct request_queue *q) { }
-static inline void blk_throtl_release(struct request_queue *q) { }
#endif /* CONFIG_BLK_DEV_THROTTLING */
#endif /* BLK_INTERNAL_H */
#include <linux/ioprio.h>
#include <linux/blktrace_api.h>
#include "blk.h"
-#include "cfq.h"
+#include "blk-cgroup.h"
+
+static struct blkcg_policy blkcg_policy_cfq __maybe_unused;
/*
* tunables
SYNC_WORKLOAD = 2
};
+struct cfqg_stats {
+#ifdef CONFIG_CFQ_GROUP_IOSCHED
+ /* total bytes transferred */
+ struct blkg_rwstat service_bytes;
+ /* total IOs serviced, post merge */
+ struct blkg_rwstat serviced;
+ /* number of ios merged */
+ struct blkg_rwstat merged;
+ /* total time spent on device in ns, may not be accurate w/ queueing */
+ struct blkg_rwstat service_time;
+ /* total time spent waiting in scheduler queue in ns */
+ struct blkg_rwstat wait_time;
+ /* number of IOs queued up */
+ struct blkg_rwstat queued;
+ /* total sectors transferred */
+ struct blkg_stat sectors;
+ /* total disk time and nr sectors dispatched by this group */
+ struct blkg_stat time;
+#ifdef CONFIG_DEBUG_BLK_CGROUP
+ /* time not charged to this cgroup */
+ struct blkg_stat unaccounted_time;
+ /* sum of number of ios queued across all samples */
+ struct blkg_stat avg_queue_size_sum;
+ /* count of samples taken for average */
+ struct blkg_stat avg_queue_size_samples;
+ /* how many times this group has been removed from service tree */
+ struct blkg_stat dequeue;
+ /* total time spent waiting for it to be assigned a timeslice. */
+ struct blkg_stat group_wait_time;
+ /* time spent idling for this blkcg_gq */
+ struct blkg_stat idle_time;
+ /* total time with empty current active q with other requests queued */
+ struct blkg_stat empty_time;
+ /* fields after this shouldn't be cleared on stat reset */
+ uint64_t start_group_wait_time;
+ uint64_t start_idle_time;
+ uint64_t start_empty_time;
+ uint16_t flags;
+#endif /* CONFIG_DEBUG_BLK_CGROUP */
+#endif /* CONFIG_CFQ_GROUP_IOSCHED */
+};
+
/* This is per cgroup per device grouping structure */
struct cfq_group {
+ /* must be the first member */
+ struct blkg_policy_data pd;
+
/* group service_tree member */
struct rb_node rb_node;
u64 vdisktime;
unsigned int weight;
unsigned int new_weight;
- bool needs_update;
+ unsigned int dev_weight;
/* number of cfqq currently on this group */
int nr_cfqq;
unsigned long saved_workload_slice;
enum wl_type_t saved_workload;
enum wl_prio_t saved_serving_prio;
- struct blkio_group blkg;
-#ifdef CONFIG_CFQ_GROUP_IOSCHED
- struct hlist_node cfqd_node;
- int ref;
-#endif
+
/* number of requests that are on the dispatch list or inside driver */
int dispatched;
struct cfq_ttime ttime;
+ struct cfqg_stats stats;
};
struct cfq_io_cq {
struct io_cq icq; /* must be the first member */
struct cfq_queue *cfqq[2];
struct cfq_ttime ttime;
+ int ioprio; /* the current ioprio */
+#ifdef CONFIG_CFQ_GROUP_IOSCHED
+ uint64_t blkcg_id; /* the current blkcg ID */
+#endif
};
/*
struct request_queue *queue;
/* Root service tree for cfq_groups */
struct cfq_rb_root grp_service_tree;
- struct cfq_group root_group;
+ struct cfq_group *root_group;
/*
* The priority currently being served
struct cfq_queue oom_cfqq;
unsigned long last_delayed_sync;
-
- /* List of cfq groups being managed on this device*/
- struct hlist_head cfqg_list;
-
- /* Number of groups which are on blkcg->blkg_list */
- unsigned int nr_blkcg_linked_grps;
};
static struct cfq_group *cfq_get_next_cfqg(struct cfq_data *cfqd);
CFQ_CFQQ_FNS(wait_busy);
#undef CFQ_CFQQ_FNS
+static inline struct cfq_group *pd_to_cfqg(struct blkg_policy_data *pd)
+{
+ return pd ? container_of(pd, struct cfq_group, pd) : NULL;
+}
+
+static inline struct cfq_group *blkg_to_cfqg(struct blkcg_gq *blkg)
+{
+ return pd_to_cfqg(blkg_to_pd(blkg, &blkcg_policy_cfq));
+}
+
+static inline struct blkcg_gq *cfqg_to_blkg(struct cfq_group *cfqg)
+{
+ return pd_to_blkg(&cfqg->pd);
+}
+
+#if defined(CONFIG_CFQ_GROUP_IOSCHED) && defined(CONFIG_DEBUG_BLK_CGROUP)
+
+/* cfqg stats flags */
+enum cfqg_stats_flags {
+ CFQG_stats_waiting = 0,
+ CFQG_stats_idling,
+ CFQG_stats_empty,
+};
+
+#define CFQG_FLAG_FNS(name) \
+static inline void cfqg_stats_mark_##name(struct cfqg_stats *stats) \
+{ \
+ stats->flags |= (1 << CFQG_stats_##name); \
+} \
+static inline void cfqg_stats_clear_##name(struct cfqg_stats *stats) \
+{ \
+ stats->flags &= ~(1 << CFQG_stats_##name); \
+} \
+static inline int cfqg_stats_##name(struct cfqg_stats *stats) \
+{ \
+ return (stats->flags & (1 << CFQG_stats_##name)) != 0; \
+} \
+
+CFQG_FLAG_FNS(waiting)
+CFQG_FLAG_FNS(idling)
+CFQG_FLAG_FNS(empty)
+#undef CFQG_FLAG_FNS
+
+/* This should be called with the queue_lock held. */
+static void cfqg_stats_update_group_wait_time(struct cfqg_stats *stats)
+{
+ unsigned long long now;
+
+ if (!cfqg_stats_waiting(stats))
+ return;
+
+ now = sched_clock();
+ if (time_after64(now, stats->start_group_wait_time))
+ blkg_stat_add(&stats->group_wait_time,
+ now - stats->start_group_wait_time);
+ cfqg_stats_clear_waiting(stats);
+}
+
+/* This should be called with the queue_lock held. */
+static void cfqg_stats_set_start_group_wait_time(struct cfq_group *cfqg,
+ struct cfq_group *curr_cfqg)
+{
+ struct cfqg_stats *stats = &cfqg->stats;
+
+ if (cfqg_stats_waiting(stats))
+ return;
+ if (cfqg == curr_cfqg)
+ return;
+ stats->start_group_wait_time = sched_clock();
+ cfqg_stats_mark_waiting(stats);
+}
+
+/* This should be called with the queue_lock held. */
+static void cfqg_stats_end_empty_time(struct cfqg_stats *stats)
+{
+ unsigned long long now;
+
+ if (!cfqg_stats_empty(stats))
+ return;
+
+ now = sched_clock();
+ if (time_after64(now, stats->start_empty_time))
+ blkg_stat_add(&stats->empty_time,
+ now - stats->start_empty_time);
+ cfqg_stats_clear_empty(stats);
+}
+
+static void cfqg_stats_update_dequeue(struct cfq_group *cfqg)
+{
+ blkg_stat_add(&cfqg->stats.dequeue, 1);
+}
+
+static void cfqg_stats_set_start_empty_time(struct cfq_group *cfqg)
+{
+ struct cfqg_stats *stats = &cfqg->stats;
+
+ if (blkg_rwstat_sum(&stats->queued))
+ return;
+
+ /*
+ * group is already marked empty. This can happen if cfqq got new
+ * request in parent group and moved to this group while being added
+ * to service tree. Just ignore the event and move on.
+ */
+ if (cfqg_stats_empty(stats))
+ return;
+
+ stats->start_empty_time = sched_clock();
+ cfqg_stats_mark_empty(stats);
+}
+
+static void cfqg_stats_update_idle_time(struct cfq_group *cfqg)
+{
+ struct cfqg_stats *stats = &cfqg->stats;
+
+ if (cfqg_stats_idling(stats)) {
+ unsigned long long now = sched_clock();
+
+ if (time_after64(now, stats->start_idle_time))
+ blkg_stat_add(&stats->idle_time,
+ now - stats->start_idle_time);
+ cfqg_stats_clear_idling(stats);
+ }
+}
+
+static void cfqg_stats_set_start_idle_time(struct cfq_group *cfqg)
+{
+ struct cfqg_stats *stats = &cfqg->stats;
+
+ BUG_ON(cfqg_stats_idling(stats));
+
+ stats->start_idle_time = sched_clock();
+ cfqg_stats_mark_idling(stats);
+}
+
+static void cfqg_stats_update_avg_queue_size(struct cfq_group *cfqg)
+{
+ struct cfqg_stats *stats = &cfqg->stats;
+
+ blkg_stat_add(&stats->avg_queue_size_sum,
+ blkg_rwstat_sum(&stats->queued));
+ blkg_stat_add(&stats->avg_queue_size_samples, 1);
+ cfqg_stats_update_group_wait_time(stats);
+}
+
+#else /* CONFIG_CFQ_GROUP_IOSCHED && CONFIG_DEBUG_BLK_CGROUP */
+
+static inline void cfqg_stats_set_start_group_wait_time(struct cfq_group *cfqg, struct cfq_group *curr_cfqg) { }
+static inline void cfqg_stats_end_empty_time(struct cfqg_stats *stats) { }
+static inline void cfqg_stats_update_dequeue(struct cfq_group *cfqg) { }
+static inline void cfqg_stats_set_start_empty_time(struct cfq_group *cfqg) { }
+static inline void cfqg_stats_update_idle_time(struct cfq_group *cfqg) { }
+static inline void cfqg_stats_set_start_idle_time(struct cfq_group *cfqg) { }
+static inline void cfqg_stats_update_avg_queue_size(struct cfq_group *cfqg) { }
+
+#endif /* CONFIG_CFQ_GROUP_IOSCHED && CONFIG_DEBUG_BLK_CGROUP */
+
#ifdef CONFIG_CFQ_GROUP_IOSCHED
-#define cfq_log_cfqq(cfqd, cfqq, fmt, args...) \
+
+static inline void cfqg_get(struct cfq_group *cfqg)
+{
+ return blkg_get(cfqg_to_blkg(cfqg));
+}
+
+static inline void cfqg_put(struct cfq_group *cfqg)
+{
+ return blkg_put(cfqg_to_blkg(cfqg));
+}
+
+#define cfq_log_cfqq(cfqd, cfqq, fmt, args...) do { \
+ char __pbuf[128]; \
+ \
+ blkg_path(cfqg_to_blkg((cfqq)->cfqg), __pbuf, sizeof(__pbuf)); \
blk_add_trace_msg((cfqd)->queue, "cfq%d%c %s " fmt, (cfqq)->pid, \
- cfq_cfqq_sync((cfqq)) ? 'S' : 'A', \
- blkg_path(&(cfqq)->cfqg->blkg), ##args)
+ cfq_cfqq_sync((cfqq)) ? 'S' : 'A', \
+ __pbuf, ##args); \
+} while (0)
-#define cfq_log_cfqg(cfqd, cfqg, fmt, args...) \
- blk_add_trace_msg((cfqd)->queue, "%s " fmt, \
- blkg_path(&(cfqg)->blkg), ##args) \
+#define cfq_log_cfqg(cfqd, cfqg, fmt, args...) do { \
+ char __pbuf[128]; \
+ \
+ blkg_path(cfqg_to_blkg(cfqg), __pbuf, sizeof(__pbuf)); \
+ blk_add_trace_msg((cfqd)->queue, "%s " fmt, __pbuf, ##args); \
+} while (0)
+
+static inline void cfqg_stats_update_io_add(struct cfq_group *cfqg,
+ struct cfq_group *curr_cfqg, int rw)
+{
+ blkg_rwstat_add(&cfqg->stats.queued, rw, 1);
+ cfqg_stats_end_empty_time(&cfqg->stats);
+ cfqg_stats_set_start_group_wait_time(cfqg, curr_cfqg);
+}
+
+static inline void cfqg_stats_update_timeslice_used(struct cfq_group *cfqg,
+ unsigned long time, unsigned long unaccounted_time)
+{
+ blkg_stat_add(&cfqg->stats.time, time);
+#ifdef CONFIG_DEBUG_BLK_CGROUP
+ blkg_stat_add(&cfqg->stats.unaccounted_time, unaccounted_time);
+#endif
+}
+
+static inline void cfqg_stats_update_io_remove(struct cfq_group *cfqg, int rw)
+{
+ blkg_rwstat_add(&cfqg->stats.queued, rw, -1);
+}
+
+static inline void cfqg_stats_update_io_merged(struct cfq_group *cfqg, int rw)
+{
+ blkg_rwstat_add(&cfqg->stats.merged, rw, 1);
+}
+
+static inline void cfqg_stats_update_dispatch(struct cfq_group *cfqg,
+ uint64_t bytes, int rw)
+{
+ blkg_stat_add(&cfqg->stats.sectors, bytes >> 9);
+ blkg_rwstat_add(&cfqg->stats.serviced, rw, 1);
+ blkg_rwstat_add(&cfqg->stats.service_bytes, rw, bytes);
+}
+
+static inline void cfqg_stats_update_completion(struct cfq_group *cfqg,
+ uint64_t start_time, uint64_t io_start_time, int rw)
+{
+ struct cfqg_stats *stats = &cfqg->stats;
+ unsigned long long now = sched_clock();
+
+ if (time_after64(now, io_start_time))
+ blkg_rwstat_add(&stats->service_time, rw, now - io_start_time);
+ if (time_after64(io_start_time, start_time))
+ blkg_rwstat_add(&stats->wait_time, rw,
+ io_start_time - start_time);
+}
+
+static void cfq_pd_reset_stats(struct blkcg_gq *blkg)
+{
+ struct cfq_group *cfqg = blkg_to_cfqg(blkg);
+ struct cfqg_stats *stats = &cfqg->stats;
+
+ /* queued stats shouldn't be cleared */
+ blkg_rwstat_reset(&stats->service_bytes);
+ blkg_rwstat_reset(&stats->serviced);
+ blkg_rwstat_reset(&stats->merged);
+ blkg_rwstat_reset(&stats->service_time);
+ blkg_rwstat_reset(&stats->wait_time);
+ blkg_stat_reset(&stats->time);
+#ifdef CONFIG_DEBUG_BLK_CGROUP
+ blkg_stat_reset(&stats->unaccounted_time);
+ blkg_stat_reset(&stats->avg_queue_size_sum);
+ blkg_stat_reset(&stats->avg_queue_size_samples);
+ blkg_stat_reset(&stats->dequeue);
+ blkg_stat_reset(&stats->group_wait_time);
+ blkg_stat_reset(&stats->idle_time);
+ blkg_stat_reset(&stats->empty_time);
+#endif
+}
+
+#else /* CONFIG_CFQ_GROUP_IOSCHED */
+
+static inline void cfqg_get(struct cfq_group *cfqg) { }
+static inline void cfqg_put(struct cfq_group *cfqg) { }
-#else
#define cfq_log_cfqq(cfqd, cfqq, fmt, args...) \
blk_add_trace_msg((cfqd)->queue, "cfq%d " fmt, (cfqq)->pid, ##args)
#define cfq_log_cfqg(cfqd, cfqg, fmt, args...) do {} while (0)
-#endif
+
+static inline void cfqg_stats_update_io_add(struct cfq_group *cfqg,
+ struct cfq_group *curr_cfqg, int rw) { }
+static inline void cfqg_stats_update_timeslice_used(struct cfq_group *cfqg,
+ unsigned long time, unsigned long unaccounted_time) { }
+static inline void cfqg_stats_update_io_remove(struct cfq_group *cfqg, int rw) { }
+static inline void cfqg_stats_update_io_merged(struct cfq_group *cfqg, int rw) { }
+static inline void cfqg_stats_update_dispatch(struct cfq_group *cfqg,
+ uint64_t bytes, int rw) { }
+static inline void cfqg_stats_update_completion(struct cfq_group *cfqg,
+ uint64_t start_time, uint64_t io_start_time, int rw) { }
+
+#endif /* CONFIG_CFQ_GROUP_IOSCHED */
+
#define cfq_log(cfqd, fmt, args...) \
blk_add_trace_msg((cfqd)->queue, "cfq " fmt, ##args)
}
static void cfq_dispatch_insert(struct request_queue *, struct request *);
-static struct cfq_queue *cfq_get_queue(struct cfq_data *, bool,
- struct io_context *, gfp_t);
+static struct cfq_queue *cfq_get_queue(struct cfq_data *cfqd, bool is_sync,
+ struct cfq_io_cq *cic, struct bio *bio,
+ gfp_t gfp_mask);
static inline struct cfq_io_cq *icq_to_cic(struct io_cq *icq)
{
{
u64 d = delta << CFQ_SERVICE_SHIFT;
- d = d * BLKIO_WEIGHT_DEFAULT;
+ d = d * CFQ_WEIGHT_DEFAULT;
do_div(d, cfqg->weight);
return d;
}
cfq_update_group_weight(struct cfq_group *cfqg)
{
BUG_ON(!RB_EMPTY_NODE(&cfqg->rb_node));
- if (cfqg->needs_update) {
+ if (cfqg->new_weight) {
cfqg->weight = cfqg->new_weight;
- cfqg->needs_update = false;
+ cfqg->new_weight = 0;
}
}
cfq_log_cfqg(cfqd, cfqg, "del_from_rr group");
cfq_group_service_tree_del(st, cfqg);
cfqg->saved_workload_slice = 0;
- cfq_blkiocg_update_dequeue_stats(&cfqg->blkg, 1);
+ cfqg_stats_update_dequeue(cfqg);
}
static inline unsigned int cfq_cfqq_slice_usage(struct cfq_queue *cfqq,
"sl_used=%u disp=%u charge=%u iops=%u sect=%lu",
used_sl, cfqq->slice_dispatch, charge,
iops_mode(cfqd), cfqq->nr_sectors);
- cfq_blkiocg_update_timeslice_used(&cfqg->blkg, used_sl,
- unaccounted_sl);
- cfq_blkiocg_set_start_empty_time(&cfqg->blkg);
+ cfqg_stats_update_timeslice_used(cfqg, used_sl, unaccounted_sl);
+ cfqg_stats_set_start_empty_time(cfqg);
}
-#ifdef CONFIG_CFQ_GROUP_IOSCHED
-static inline struct cfq_group *cfqg_of_blkg(struct blkio_group *blkg)
-{
- if (blkg)
- return container_of(blkg, struct cfq_group, blkg);
- return NULL;
-}
-
-static void cfq_update_blkio_group_weight(void *key, struct blkio_group *blkg,
- unsigned int weight)
-{
- struct cfq_group *cfqg = cfqg_of_blkg(blkg);
- cfqg->new_weight = weight;
- cfqg->needs_update = true;
-}
-
-static void cfq_init_add_cfqg_lists(struct cfq_data *cfqd,
- struct cfq_group *cfqg, struct blkio_cgroup *blkcg)
-{
- struct backing_dev_info *bdi = &cfqd->queue->backing_dev_info;
- unsigned int major, minor;
-
- /*
- * Add group onto cgroup list. It might happen that bdi->dev is
- * not initialized yet. Initialize this new group without major
- * and minor info and this info will be filled in once a new thread
- * comes for IO.
- */
- if (bdi->dev) {
- sscanf(dev_name(bdi->dev), "%u:%u", &major, &minor);
- cfq_blkiocg_add_blkio_group(blkcg, &cfqg->blkg,
- (void *)cfqd, MKDEV(major, minor));
- } else
- cfq_blkiocg_add_blkio_group(blkcg, &cfqg->blkg,
- (void *)cfqd, 0);
-
- cfqd->nr_blkcg_linked_grps++;
- cfqg->weight = blkcg_get_weight(blkcg, cfqg->blkg.dev);
-
- /* Add group on cfqd list */
- hlist_add_head(&cfqg->cfqd_node, &cfqd->cfqg_list);
-}
-
-/*
- * Should be called from sleepable context. No request queue lock as per
- * cpu stats are allocated dynamically and alloc_percpu needs to be called
- * from sleepable context.
+/**
+ * cfq_init_cfqg_base - initialize base part of a cfq_group
+ * @cfqg: cfq_group to initialize
+ *
+ * Initialize the base part which is used whether %CONFIG_CFQ_GROUP_IOSCHED
+ * is enabled or not.
*/
-static struct cfq_group * cfq_alloc_cfqg(struct cfq_data *cfqd)
+static void cfq_init_cfqg_base(struct cfq_group *cfqg)
{
- struct cfq_group *cfqg = NULL;
- int i, j, ret;
struct cfq_rb_root *st;
-
- cfqg = kzalloc_node(sizeof(*cfqg), GFP_ATOMIC, cfqd->queue->node);
- if (!cfqg)
- return NULL;
+ int i, j;
for_each_cfqg_st(cfqg, i, j, st)
*st = CFQ_RB_ROOT;
RB_CLEAR_NODE(&cfqg->rb_node);
cfqg->ttime.last_end_request = jiffies;
-
- /*
- * Take the initial reference that will be released on destroy
- * This can be thought of a joint reference by cgroup and
- * elevator which will be dropped by either elevator exit
- * or cgroup deletion path depending on who is exiting first.
- */
- cfqg->ref = 1;
-
- ret = blkio_alloc_blkg_stats(&cfqg->blkg);
- if (ret) {
- kfree(cfqg);
- return NULL;
- }
-
- return cfqg;
}
-static struct cfq_group *
-cfq_find_cfqg(struct cfq_data *cfqd, struct blkio_cgroup *blkcg)
+#ifdef CONFIG_CFQ_GROUP_IOSCHED
+static void cfq_pd_init(struct blkcg_gq *blkg)
{
- struct cfq_group *cfqg = NULL;
- void *key = cfqd;
- struct backing_dev_info *bdi = &cfqd->queue->backing_dev_info;
- unsigned int major, minor;
-
- /*
- * This is the common case when there are no blkio cgroups.
- * Avoid lookup in this case
- */
- if (blkcg == &blkio_root_cgroup)
- cfqg = &cfqd->root_group;
- else
- cfqg = cfqg_of_blkg(blkiocg_lookup_group(blkcg, key));
-
- if (cfqg && !cfqg->blkg.dev && bdi->dev && dev_name(bdi->dev)) {
- sscanf(dev_name(bdi->dev), "%u:%u", &major, &minor);
- cfqg->blkg.dev = MKDEV(major, minor);
- }
+ struct cfq_group *cfqg = blkg_to_cfqg(blkg);
- return cfqg;
+ cfq_init_cfqg_base(cfqg);
+ cfqg->weight = blkg->blkcg->cfq_weight;
}
/*
* Search for the cfq group current task belongs to. request_queue lock must
* be held.
*/
-static struct cfq_group *cfq_get_cfqg(struct cfq_data *cfqd)
+static struct cfq_group *cfq_lookup_create_cfqg(struct cfq_data *cfqd,
+ struct blkcg *blkcg)
{
- struct blkio_cgroup *blkcg;
- struct cfq_group *cfqg = NULL, *__cfqg = NULL;
struct request_queue *q = cfqd->queue;
+ struct cfq_group *cfqg = NULL;
- rcu_read_lock();
- blkcg = task_blkio_cgroup(current);
- cfqg = cfq_find_cfqg(cfqd, blkcg);
- if (cfqg) {
- rcu_read_unlock();
- return cfqg;
- }
-
- /*
- * Need to allocate a group. Allocation of group also needs allocation
- * of per cpu stats which in-turn takes a mutex() and can block. Hence
- * we need to drop rcu lock and queue_lock before we call alloc.
- *
- * Not taking any queue reference here and assuming that queue is
- * around by the time we return. CFQ queue allocation code does
- * the same. It might be racy though.
- */
-
- rcu_read_unlock();
- spin_unlock_irq(q->queue_lock);
-
- cfqg = cfq_alloc_cfqg(cfqd);
-
- spin_lock_irq(q->queue_lock);
-
- rcu_read_lock();
- blkcg = task_blkio_cgroup(current);
-
- /*
- * If some other thread already allocated the group while we were
- * not holding queue lock, free up the group
- */
- __cfqg = cfq_find_cfqg(cfqd, blkcg);
+ /* avoid lookup for the common case where there's no blkcg */
+ if (blkcg == &blkcg_root) {
+ cfqg = cfqd->root_group;
+ } else {
+ struct blkcg_gq *blkg;
- if (__cfqg) {
- kfree(cfqg);
- rcu_read_unlock();
- return __cfqg;
+ blkg = blkg_lookup_create(blkcg, q);
+ if (!IS_ERR(blkg))
+ cfqg = blkg_to_cfqg(blkg);
}
- if (!cfqg)
- cfqg = &cfqd->root_group;
-
- cfq_init_add_cfqg_lists(cfqd, cfqg, blkcg);
- rcu_read_unlock();
- return cfqg;
-}
-
-static inline struct cfq_group *cfq_ref_get_cfqg(struct cfq_group *cfqg)
-{
- cfqg->ref++;
return cfqg;
}
{
/* Currently, all async queues are mapped to root group */
if (!cfq_cfqq_sync(cfqq))
- cfqg = &cfqq->cfqd->root_group;
+ cfqg = cfqq->cfqd->root_group;
cfqq->cfqg = cfqg;
/* cfqq reference on cfqg */
- cfqq->cfqg->ref++;
+ cfqg_get(cfqg);
}
-static void cfq_put_cfqg(struct cfq_group *cfqg)
+static u64 cfqg_prfill_weight_device(struct seq_file *sf,
+ struct blkg_policy_data *pd, int off)
{
- struct cfq_rb_root *st;
- int i, j;
+ struct cfq_group *cfqg = pd_to_cfqg(pd);
- BUG_ON(cfqg->ref <= 0);
- cfqg->ref--;
- if (cfqg->ref)
- return;
- for_each_cfqg_st(cfqg, i, j, st)
- BUG_ON(!RB_EMPTY_ROOT(&st->rb));
- free_percpu(cfqg->blkg.stats_cpu);
- kfree(cfqg);
+ if (!cfqg->dev_weight)
+ return 0;
+ return __blkg_prfill_u64(sf, pd, cfqg->dev_weight);
}
-static void cfq_destroy_cfqg(struct cfq_data *cfqd, struct cfq_group *cfqg)
+static int cfqg_print_weight_device(struct cgroup *cgrp, struct cftype *cft,
+ struct seq_file *sf)
{
- /* Something wrong if we are trying to remove same group twice */
- BUG_ON(hlist_unhashed(&cfqg->cfqd_node));
+ blkcg_print_blkgs(sf, cgroup_to_blkcg(cgrp),
+ cfqg_prfill_weight_device, &blkcg_policy_cfq, 0,
+ false);
+ return 0;
+}
- hlist_del_init(&cfqg->cfqd_node);
+static int cfq_print_weight(struct cgroup *cgrp, struct cftype *cft,
+ struct seq_file *sf)
+{
+ seq_printf(sf, "%u\n", cgroup_to_blkcg(cgrp)->cfq_weight);
+ return 0;
+}
- BUG_ON(cfqd->nr_blkcg_linked_grps <= 0);
- cfqd->nr_blkcg_linked_grps--;
+static int cfqg_set_weight_device(struct cgroup *cgrp, struct cftype *cft,
+ const char *buf)
+{
+ struct blkcg *blkcg = cgroup_to_blkcg(cgrp);
+ struct blkg_conf_ctx ctx;
+ struct cfq_group *cfqg;
+ int ret;
- /*
- * Put the reference taken at the time of creation so that when all
- * queues are gone, group can be destroyed.
- */
- cfq_put_cfqg(cfqg);
+ ret = blkg_conf_prep(blkcg, &blkcg_policy_cfq, buf, &ctx);
+ if (ret)
+ return ret;
+
+ ret = -EINVAL;
+ cfqg = blkg_to_cfqg(ctx.blkg);
+ if (!ctx.v || (ctx.v >= CFQ_WEIGHT_MIN && ctx.v <= CFQ_WEIGHT_MAX)) {
+ cfqg->dev_weight = ctx.v;
+ cfqg->new_weight = cfqg->dev_weight ?: blkcg->cfq_weight;
+ ret = 0;
+ }
+
+ blkg_conf_finish(&ctx);
+ return ret;
}
-static void cfq_release_cfq_groups(struct cfq_data *cfqd)
+static int cfq_set_weight(struct cgroup *cgrp, struct cftype *cft, u64 val)
{
- struct hlist_node *pos, *n;
- struct cfq_group *cfqg;
+ struct blkcg *blkcg = cgroup_to_blkcg(cgrp);
+ struct blkcg_gq *blkg;
+ struct hlist_node *n;
- hlist_for_each_entry_safe(cfqg, pos, n, &cfqd->cfqg_list, cfqd_node) {
- /*
- * If cgroup removal path got to blk_group first and removed
- * it from cgroup list, then it will take care of destroying
- * cfqg also.
- */
- if (!cfq_blkiocg_del_blkio_group(&cfqg->blkg))
- cfq_destroy_cfqg(cfqd, cfqg);
+ if (val < CFQ_WEIGHT_MIN || val > CFQ_WEIGHT_MAX)
+ return -EINVAL;
+
+ spin_lock_irq(&blkcg->lock);
+ blkcg->cfq_weight = (unsigned int)val;
+
+ hlist_for_each_entry(blkg, n, &blkcg->blkg_list, blkcg_node) {
+ struct cfq_group *cfqg = blkg_to_cfqg(blkg);
+
+ if (cfqg && !cfqg->dev_weight)
+ cfqg->new_weight = blkcg->cfq_weight;
}
+
+ spin_unlock_irq(&blkcg->lock);
+ return 0;
}
-/*
- * Blk cgroup controller notification saying that blkio_group object is being
- * delinked as associated cgroup object is going away. That also means that
- * no new IO will come in this group. So get rid of this group as soon as
- * any pending IO in the group is finished.
- *
- * This function is called under rcu_read_lock(). key is the rcu protected
- * pointer. That means "key" is a valid cfq_data pointer as long as we are rcu
- * read lock.
- *
- * "key" was fetched from blkio_group under blkio_cgroup->lock. That means
- * it should not be NULL as even if elevator was exiting, cgroup deltion
- * path got to it first.
- */
-static void cfq_unlink_blkio_group(void *key, struct blkio_group *blkg)
+static int cfqg_print_stat(struct cgroup *cgrp, struct cftype *cft,
+ struct seq_file *sf)
{
- unsigned long flags;
- struct cfq_data *cfqd = key;
+ struct blkcg *blkcg = cgroup_to_blkcg(cgrp);
- spin_lock_irqsave(cfqd->queue->queue_lock, flags);
- cfq_destroy_cfqg(cfqd, cfqg_of_blkg(blkg));
- spin_unlock_irqrestore(cfqd->queue->queue_lock, flags);
+ blkcg_print_blkgs(sf, blkcg, blkg_prfill_stat, &blkcg_policy_cfq,
+ cft->private, false);
+ return 0;
}
-#else /* GROUP_IOSCHED */
-static struct cfq_group *cfq_get_cfqg(struct cfq_data *cfqd)
+static int cfqg_print_rwstat(struct cgroup *cgrp, struct cftype *cft,
+ struct seq_file *sf)
{
- return &cfqd->root_group;
+ struct blkcg *blkcg = cgroup_to_blkcg(cgrp);
+
+ blkcg_print_blkgs(sf, blkcg, blkg_prfill_rwstat, &blkcg_policy_cfq,
+ cft->private, true);
+ return 0;
}
-static inline struct cfq_group *cfq_ref_get_cfqg(struct cfq_group *cfqg)
+#ifdef CONFIG_DEBUG_BLK_CGROUP
+static u64 cfqg_prfill_avg_queue_size(struct seq_file *sf,
+ struct blkg_policy_data *pd, int off)
{
- return cfqg;
+ struct cfq_group *cfqg = pd_to_cfqg(pd);
+ u64 samples = blkg_stat_read(&cfqg->stats.avg_queue_size_samples);
+ u64 v = 0;
+
+ if (samples) {
+ v = blkg_stat_read(&cfqg->stats.avg_queue_size_sum);
+ do_div(v, samples);
+ }
+ __blkg_prfill_u64(sf, pd, v);
+ return 0;
+}
+
+/* print avg_queue_size */
+static int cfqg_print_avg_queue_size(struct cgroup *cgrp, struct cftype *cft,
+ struct seq_file *sf)
+{
+ struct blkcg *blkcg = cgroup_to_blkcg(cgrp);
+
+ blkcg_print_blkgs(sf, blkcg, cfqg_prfill_avg_queue_size,
+ &blkcg_policy_cfq, 0, false);
+ return 0;
+}
+#endif /* CONFIG_DEBUG_BLK_CGROUP */
+
+static struct cftype cfq_blkcg_files[] = {
+ {
+ .name = "weight_device",
+ .read_seq_string = cfqg_print_weight_device,
+ .write_string = cfqg_set_weight_device,
+ .max_write_len = 256,
+ },
+ {
+ .name = "weight",
+ .read_seq_string = cfq_print_weight,
+ .write_u64 = cfq_set_weight,
+ },
+ {
+ .name = "time",
+ .private = offsetof(struct cfq_group, stats.time),
+ .read_seq_string = cfqg_print_stat,
+ },
+ {
+ .name = "sectors",
+ .private = offsetof(struct cfq_group, stats.sectors),
+ .read_seq_string = cfqg_print_stat,
+ },
+ {
+ .name = "io_service_bytes",
+ .private = offsetof(struct cfq_group, stats.service_bytes),
+ .read_seq_string = cfqg_print_rwstat,
+ },
+ {
+ .name = "io_serviced",
+ .private = offsetof(struct cfq_group, stats.serviced),
+ .read_seq_string = cfqg_print_rwstat,
+ },
+ {
+ .name = "io_service_time",
+ .private = offsetof(struct cfq_group, stats.service_time),
+ .read_seq_string = cfqg_print_rwstat,
+ },
+ {
+ .name = "io_wait_time",
+ .private = offsetof(struct cfq_group, stats.wait_time),
+ .read_seq_string = cfqg_print_rwstat,
+ },
+ {
+ .name = "io_merged",
+ .private = offsetof(struct cfq_group, stats.merged),
+ .read_seq_string = cfqg_print_rwstat,
+ },
+ {
+ .name = "io_queued",
+ .private = offsetof(struct cfq_group, stats.queued),
+ .read_seq_string = cfqg_print_rwstat,
+ },
+#ifdef CONFIG_DEBUG_BLK_CGROUP
+ {
+ .name = "avg_queue_size",
+ .read_seq_string = cfqg_print_avg_queue_size,
+ },
+ {
+ .name = "group_wait_time",
+ .private = offsetof(struct cfq_group, stats.group_wait_time),
+ .read_seq_string = cfqg_print_stat,
+ },
+ {
+ .name = "idle_time",
+ .private = offsetof(struct cfq_group, stats.idle_time),
+ .read_seq_string = cfqg_print_stat,
+ },
+ {
+ .name = "empty_time",
+ .private = offsetof(struct cfq_group, stats.empty_time),
+ .read_seq_string = cfqg_print_stat,
+ },
+ {
+ .name = "dequeue",
+ .private = offsetof(struct cfq_group, stats.dequeue),
+ .read_seq_string = cfqg_print_stat,
+ },
+ {
+ .name = "unaccounted_time",
+ .private = offsetof(struct cfq_group, stats.unaccounted_time),
+ .read_seq_string = cfqg_print_stat,
+ },
+#endif /* CONFIG_DEBUG_BLK_CGROUP */
+ { } /* terminate */
+};
+#else /* GROUP_IOSCHED */
+static struct cfq_group *cfq_lookup_create_cfqg(struct cfq_data *cfqd,
+ struct blkcg *blkcg)
+{
+ return cfqd->root_group;
}
static inline void
cfqq->cfqg = cfqg;
}
-static void cfq_release_cfq_groups(struct cfq_data *cfqd) {}
-static inline void cfq_put_cfqg(struct cfq_group *cfqg) {}
-
#endif /* GROUP_IOSCHED */
/*
{
elv_rb_del(&cfqq->sort_list, rq);
cfqq->queued[rq_is_sync(rq)]--;
- cfq_blkiocg_update_io_remove_stats(&(RQ_CFQG(rq))->blkg,
- rq_data_dir(rq), rq_is_sync(rq));
+ cfqg_stats_update_io_remove(RQ_CFQG(rq), rq->cmd_flags);
cfq_add_rq_rb(rq);
- cfq_blkiocg_update_io_add_stats(&(RQ_CFQG(rq))->blkg,
- &cfqq->cfqd->serving_group->blkg, rq_data_dir(rq),
- rq_is_sync(rq));
+ cfqg_stats_update_io_add(RQ_CFQG(rq), cfqq->cfqd->serving_group,
+ rq->cmd_flags);
}
static struct request *
cfq_del_rq_rb(rq);
cfqq->cfqd->rq_queued--;
- cfq_blkiocg_update_io_remove_stats(&(RQ_CFQG(rq))->blkg,
- rq_data_dir(rq), rq_is_sync(rq));
+ cfqg_stats_update_io_remove(RQ_CFQG(rq), rq->cmd_flags);
if (rq->cmd_flags & REQ_PRIO) {
WARN_ON(!cfqq->prio_pending);
cfqq->prio_pending--;
static void cfq_bio_merged(struct request_queue *q, struct request *req,
struct bio *bio)
{
- cfq_blkiocg_update_io_merged_stats(&(RQ_CFQG(req))->blkg,
- bio_data_dir(bio), cfq_bio_sync(bio));
+ cfqg_stats_update_io_merged(RQ_CFQG(req), bio->bi_rw);
}
static void
if (cfqq->next_rq == next)
cfqq->next_rq = rq;
cfq_remove_request(next);
- cfq_blkiocg_update_io_merged_stats(&(RQ_CFQG(rq))->blkg,
- rq_data_dir(next), rq_is_sync(next));
+ cfqg_stats_update_io_merged(RQ_CFQG(rq), next->cmd_flags);
cfqq = RQ_CFQQ(next);
/*
static inline void cfq_del_timer(struct cfq_data *cfqd, struct cfq_queue *cfqq)
{
del_timer(&cfqd->idle_slice_timer);
- cfq_blkiocg_update_idle_time_stats(&cfqq->cfqg->blkg);
+ cfqg_stats_update_idle_time(cfqq->cfqg);
}
static void __cfq_set_active_queue(struct cfq_data *cfqd,
if (cfqq) {
cfq_log_cfqq(cfqd, cfqq, "set_active wl_prio:%d wl_type:%d",
cfqd->serving_prio, cfqd->serving_type);
- cfq_blkiocg_update_avg_queue_size_stats(&cfqq->cfqg->blkg);
+ cfqg_stats_update_avg_queue_size(cfqq->cfqg);
cfqq->slice_start = 0;
cfqq->dispatch_start = jiffies;
cfqq->allocated_slice = 0;
* task has exited, don't wait
*/
cic = cfqd->active_cic;
- if (!cic || !atomic_read(&cic->icq.ioc->nr_tasks))
+ if (!cic || !atomic_read(&cic->icq.ioc->active_ref))
return;
/*
sl = cfqd->cfq_slice_idle;
mod_timer(&cfqd->idle_slice_timer, jiffies + sl);
- cfq_blkiocg_update_set_idle_time_stats(&cfqq->cfqg->blkg);
+ cfqg_stats_set_start_idle_time(cfqq->cfqg);
cfq_log_cfqq(cfqd, cfqq, "arm_idle: %lu group_idle: %d", sl,
group_idle ? 1 : 0);
}
cfqd->rq_in_flight[cfq_cfqq_sync(cfqq)]++;
cfqq->nr_sectors += blk_rq_sectors(rq);
- cfq_blkiocg_update_dispatch_stats(&cfqq->cfqg->blkg, blk_rq_bytes(rq),
- rq_data_dir(rq), rq_is_sync(rq));
+ cfqg_stats_update_dispatch(cfqq->cfqg, blk_rq_bytes(rq), rq->cmd_flags);
}
/*
BUG_ON(cfq_cfqq_on_rr(cfqq));
kmem_cache_free(cfq_pool, cfqq);
- cfq_put_cfqg(cfqg);
+ cfqg_put(cfqg);
}
static void cfq_put_cooperator(struct cfq_queue *cfqq)
}
}
-static void cfq_init_prio_data(struct cfq_queue *cfqq, struct io_context *ioc)
+static void cfq_init_prio_data(struct cfq_queue *cfqq, struct cfq_io_cq *cic)
{
struct task_struct *tsk = current;
int ioprio_class;
if (!cfq_cfqq_prio_changed(cfqq))
return;
- ioprio_class = IOPRIO_PRIO_CLASS(ioc->ioprio);
+ ioprio_class = IOPRIO_PRIO_CLASS(cic->ioprio);
switch (ioprio_class) {
default:
printk(KERN_ERR "cfq: bad prio %x\n", ioprio_class);
cfqq->ioprio_class = task_nice_ioclass(tsk);
break;
case IOPRIO_CLASS_RT:
- cfqq->ioprio = task_ioprio(ioc);
+ cfqq->ioprio = IOPRIO_PRIO_DATA(cic->ioprio);
cfqq->ioprio_class = IOPRIO_CLASS_RT;
break;
case IOPRIO_CLASS_BE:
- cfqq->ioprio = task_ioprio(ioc);
+ cfqq->ioprio = IOPRIO_PRIO_DATA(cic->ioprio);
cfqq->ioprio_class = IOPRIO_CLASS_BE;
break;
case IOPRIO_CLASS_IDLE:
cfq_clear_cfqq_prio_changed(cfqq);
}
-static void changed_ioprio(struct cfq_io_cq *cic)
+static void check_ioprio_changed(struct cfq_io_cq *cic, struct bio *bio)
{
+ int ioprio = cic->icq.ioc->ioprio;
struct cfq_data *cfqd = cic_to_cfqd(cic);
struct cfq_queue *cfqq;
- if (unlikely(!cfqd))
+ /*
+ * Check whether ioprio has changed. The condition may trigger
+ * spuriously on a newly created cic but there's no harm.
+ */
+ if (unlikely(!cfqd) || likely(cic->ioprio == ioprio))
return;
cfqq = cic->cfqq[BLK_RW_ASYNC];
if (cfqq) {
struct cfq_queue *new_cfqq;
- new_cfqq = cfq_get_queue(cfqd, BLK_RW_ASYNC, cic->icq.ioc,
- GFP_ATOMIC);
+ new_cfqq = cfq_get_queue(cfqd, BLK_RW_ASYNC, cic, bio,
+ GFP_ATOMIC);
if (new_cfqq) {
cic->cfqq[BLK_RW_ASYNC] = new_cfqq;
cfq_put_queue(cfqq);
cfqq = cic->cfqq[BLK_RW_SYNC];
if (cfqq)
cfq_mark_cfqq_prio_changed(cfqq);
+
+ cic->ioprio = ioprio;
}
static void cfq_init_cfqq(struct cfq_data *cfqd, struct cfq_queue *cfqq,
}
#ifdef CONFIG_CFQ_GROUP_IOSCHED
-static void changed_cgroup(struct cfq_io_cq *cic)
+static void check_blkcg_changed(struct cfq_io_cq *cic, struct bio *bio)
{
- struct cfq_queue *sync_cfqq = cic_to_cfqq(cic, 1);
struct cfq_data *cfqd = cic_to_cfqd(cic);
- struct request_queue *q;
+ struct cfq_queue *sync_cfqq;
+ uint64_t id;
- if (unlikely(!cfqd))
- return;
+ rcu_read_lock();
+ id = bio_blkcg(bio)->id;
+ rcu_read_unlock();
- q = cfqd->queue;
+ /*
+ * Check whether blkcg has changed. The condition may trigger
+ * spuriously on a newly created cic but there's no harm.
+ */
+ if (unlikely(!cfqd) || likely(cic->blkcg_id == id))
+ return;
+ sync_cfqq = cic_to_cfqq(cic, 1);
if (sync_cfqq) {
/*
* Drop reference to sync queue. A new sync queue will be
cic_set_cfqq(cic, NULL, 1);
cfq_put_queue(sync_cfqq);
}
+
+ cic->blkcg_id = id;
}
+#else
+static inline void check_blkcg_changed(struct cfq_io_cq *cic, struct bio *bio) { }
#endif /* CONFIG_CFQ_GROUP_IOSCHED */
static struct cfq_queue *
-cfq_find_alloc_queue(struct cfq_data *cfqd, bool is_sync,
- struct io_context *ioc, gfp_t gfp_mask)
+cfq_find_alloc_queue(struct cfq_data *cfqd, bool is_sync, struct cfq_io_cq *cic,
+ struct bio *bio, gfp_t gfp_mask)
{
+ struct blkcg *blkcg;
struct cfq_queue *cfqq, *new_cfqq = NULL;
- struct cfq_io_cq *cic;
struct cfq_group *cfqg;
retry:
- cfqg = cfq_get_cfqg(cfqd);
- cic = cfq_cic_lookup(cfqd, ioc);
- /* cic always exists here */
+ rcu_read_lock();
+
+ blkcg = bio_blkcg(bio);
+ cfqg = cfq_lookup_create_cfqg(cfqd, blkcg);
cfqq = cic_to_cfqq(cic, is_sync);
/*
cfqq = new_cfqq;
new_cfqq = NULL;
} else if (gfp_mask & __GFP_WAIT) {
+ rcu_read_unlock();
spin_unlock_irq(cfqd->queue->queue_lock);
new_cfqq = kmem_cache_alloc_node(cfq_pool,
gfp_mask | __GFP_ZERO,
if (cfqq) {
cfq_init_cfqq(cfqd, cfqq, current->pid, is_sync);
- cfq_init_prio_data(cfqq, ioc);
+ cfq_init_prio_data(cfqq, cic);
cfq_link_cfqq_cfqg(cfqq, cfqg);
cfq_log_cfqq(cfqd, cfqq, "alloced");
} else
if (new_cfqq)
kmem_cache_free(cfq_pool, new_cfqq);
+ rcu_read_unlock();
return cfqq;
}
switch (ioprio_class) {
case IOPRIO_CLASS_RT:
return &cfqd->async_cfqq[0][ioprio];
+ case IOPRIO_CLASS_NONE:
+ ioprio = IOPRIO_NORM;
+ /* fall through */
case IOPRIO_CLASS_BE:
return &cfqd->async_cfqq[1][ioprio];
case IOPRIO_CLASS_IDLE:
}
static struct cfq_queue *
-cfq_get_queue(struct cfq_data *cfqd, bool is_sync, struct io_context *ioc,
- gfp_t gfp_mask)
+cfq_get_queue(struct cfq_data *cfqd, bool is_sync, struct cfq_io_cq *cic,
+ struct bio *bio, gfp_t gfp_mask)
{
- const int ioprio = task_ioprio(ioc);
- const int ioprio_class = task_ioprio_class(ioc);
+ const int ioprio_class = IOPRIO_PRIO_CLASS(cic->ioprio);
+ const int ioprio = IOPRIO_PRIO_DATA(cic->ioprio);
struct cfq_queue **async_cfqq = NULL;
struct cfq_queue *cfqq = NULL;
}
if (!cfqq)
- cfqq = cfq_find_alloc_queue(cfqd, is_sync, ioc, gfp_mask);
+ cfqq = cfq_find_alloc_queue(cfqd, is_sync, cic, bio, gfp_mask);
/*
* pin the queue now that it's allocated, scheduler exit will prune it
if (cfqq->next_rq && (cfqq->next_rq->cmd_flags & REQ_NOIDLE))
enable_idle = 0;
- else if (!atomic_read(&cic->icq.ioc->nr_tasks) ||
+ else if (!atomic_read(&cic->icq.ioc->active_ref) ||
!cfqd->cfq_slice_idle ||
(!cfq_cfqq_deep(cfqq) && CFQQ_SEEKY(cfqq)))
enable_idle = 0;
cfq_clear_cfqq_wait_request(cfqq);
__blk_run_queue(cfqd->queue);
} else {
- cfq_blkiocg_update_idle_time_stats(
- &cfqq->cfqg->blkg);
+ cfqg_stats_update_idle_time(cfqq->cfqg);
cfq_mark_cfqq_must_dispatch(cfqq);
}
}
struct cfq_queue *cfqq = RQ_CFQQ(rq);
cfq_log_cfqq(cfqd, cfqq, "insert_request");
- cfq_init_prio_data(cfqq, RQ_CIC(rq)->icq.ioc);
+ cfq_init_prio_data(cfqq, RQ_CIC(rq));
rq_set_fifo_time(rq, jiffies + cfqd->cfq_fifo_expire[rq_is_sync(rq)]);
list_add_tail(&rq->queuelist, &cfqq->fifo);
cfq_add_rq_rb(rq);
- cfq_blkiocg_update_io_add_stats(&(RQ_CFQG(rq))->blkg,
- &cfqd->serving_group->blkg, rq_data_dir(rq),
- rq_is_sync(rq));
+ cfqg_stats_update_io_add(RQ_CFQG(rq), cfqd->serving_group,
+ rq->cmd_flags);
cfq_rq_enqueued(cfqd, cfqq, rq);
}
cfqd->rq_in_driver--;
cfqq->dispatched--;
(RQ_CFQG(rq))->dispatched--;
- cfq_blkiocg_update_completion_stats(&cfqq->cfqg->blkg,
- rq_start_time_ns(rq), rq_io_start_time_ns(rq),
- rq_data_dir(rq), rq_is_sync(rq));
+ cfqg_stats_update_completion(cfqq->cfqg, rq_start_time_ns(rq),
+ rq_io_start_time_ns(rq), rq->cmd_flags);
cfqd->rq_in_flight[cfq_cfqq_sync(cfqq)]--;
cfqq = cic_to_cfqq(cic, rw_is_sync(rw));
if (cfqq) {
- cfq_init_prio_data(cfqq, cic->icq.ioc);
+ cfq_init_prio_data(cfqq, cic);
return __cfq_may_queue(cfqq);
}
cfqq->allocated[rw]--;
/* Put down rq reference on cfqg */
- cfq_put_cfqg(RQ_CFQG(rq));
+ cfqg_put(RQ_CFQG(rq));
rq->elv.priv[0] = NULL;
rq->elv.priv[1] = NULL;
* Allocate cfq data structures associated with this request.
*/
static int
-cfq_set_request(struct request_queue *q, struct request *rq, gfp_t gfp_mask)
+cfq_set_request(struct request_queue *q, struct request *rq, struct bio *bio,
+ gfp_t gfp_mask)
{
struct cfq_data *cfqd = q->elevator->elevator_data;
struct cfq_io_cq *cic = icq_to_cic(rq->elv.icq);
const int rw = rq_data_dir(rq);
const bool is_sync = rq_is_sync(rq);
struct cfq_queue *cfqq;
- unsigned int changed;
might_sleep_if(gfp_mask & __GFP_WAIT);
spin_lock_irq(q->queue_lock);
- /* handle changed notifications */
- changed = icq_get_changed(&cic->icq);
- if (unlikely(changed & ICQ_IOPRIO_CHANGED))
- changed_ioprio(cic);
-#ifdef CONFIG_CFQ_GROUP_IOSCHED
- if (unlikely(changed & ICQ_CGROUP_CHANGED))
- changed_cgroup(cic);
-#endif
-
+ check_ioprio_changed(cic, bio);
+ check_blkcg_changed(cic, bio);
new_queue:
cfqq = cic_to_cfqq(cic, is_sync);
if (!cfqq || cfqq == &cfqd->oom_cfqq) {
- cfqq = cfq_get_queue(cfqd, is_sync, cic->icq.ioc, gfp_mask);
+ cfqq = cfq_get_queue(cfqd, is_sync, cic, bio, gfp_mask);
cic_set_cfqq(cic, cfqq, is_sync);
} else {
/*
cfqq->allocated[rw]++;
cfqq->ref++;
+ cfqg_get(cfqq->cfqg);
rq->elv.priv[0] = cfqq;
- rq->elv.priv[1] = cfq_ref_get_cfqg(cfqq->cfqg);
+ rq->elv.priv[1] = cfqq->cfqg;
spin_unlock_irq(q->queue_lock);
return 0;
}
{
struct cfq_data *cfqd = e->elevator_data;
struct request_queue *q = cfqd->queue;
- bool wait = false;
cfq_shutdown_timer_wq(cfqd);
__cfq_slice_expired(cfqd, cfqd->active_queue, 0);
cfq_put_async_queues(cfqd);
- cfq_release_cfq_groups(cfqd);
-
- /*
- * If there are groups which we could not unlink from blkcg list,
- * wait for a rcu period for them to be freed.
- */
- if (cfqd->nr_blkcg_linked_grps)
- wait = true;
spin_unlock_irq(q->queue_lock);
cfq_shutdown_timer_wq(cfqd);
- /*
- * Wait for cfqg->blkg->key accessors to exit their grace periods.
- * Do this wait only if there are other unlinked groups out
- * there. This can happen if cgroup deletion path claimed the
- * responsibility of cleaning up a group before queue cleanup code
- * get to the group.
- *
- * Do not call synchronize_rcu() unconditionally as there are drivers
- * which create/delete request queue hundreds of times during scan/boot
- * and synchronize_rcu() can take significant time and slow down boot.
- */
- if (wait)
- synchronize_rcu();
-
-#ifdef CONFIG_CFQ_GROUP_IOSCHED
- /* Free up per cpu stats for root group */
- free_percpu(cfqd->root_group.blkg.stats_cpu);
+#ifndef CONFIG_CFQ_GROUP_IOSCHED
+ kfree(cfqd->root_group);
#endif
+ blkcg_deactivate_policy(q, &blkcg_policy_cfq);
kfree(cfqd);
}
-static void *cfq_init_queue(struct request_queue *q)
+static int cfq_init_queue(struct request_queue *q)
{
struct cfq_data *cfqd;
- int i, j;
- struct cfq_group *cfqg;
- struct cfq_rb_root *st;
+ struct blkcg_gq *blkg __maybe_unused;
+ int i, ret;
cfqd = kmalloc_node(sizeof(*cfqd), GFP_KERNEL | __GFP_ZERO, q->node);
if (!cfqd)
- return NULL;
+ return -ENOMEM;
+
+ cfqd->queue = q;
+ q->elevator->elevator_data = cfqd;
/* Init root service tree */
cfqd->grp_service_tree = CFQ_RB_ROOT;
- /* Init root group */
- cfqg = &cfqd->root_group;
- for_each_cfqg_st(cfqg, i, j, st)
- *st = CFQ_RB_ROOT;
- RB_CLEAR_NODE(&cfqg->rb_node);
-
- /* Give preference to root group over other groups */
- cfqg->weight = 2*BLKIO_WEIGHT_DEFAULT;
-
+ /* Init root group and prefer root group over other groups by default */
#ifdef CONFIG_CFQ_GROUP_IOSCHED
- /*
- * Set root group reference to 2. One reference will be dropped when
- * all groups on cfqd->cfqg_list are being deleted during queue exit.
- * Other reference will remain there as we don't want to delete this
- * group as it is statically allocated and gets destroyed when
- * throtl_data goes away.
- */
- cfqg->ref = 2;
-
- if (blkio_alloc_blkg_stats(&cfqg->blkg)) {
- kfree(cfqg);
- kfree(cfqd);
- return NULL;
- }
-
- rcu_read_lock();
+ ret = blkcg_activate_policy(q, &blkcg_policy_cfq);
+ if (ret)
+ goto out_free;
- cfq_blkiocg_add_blkio_group(&blkio_root_cgroup, &cfqg->blkg,
- (void *)cfqd, 0);
- rcu_read_unlock();
- cfqd->nr_blkcg_linked_grps++;
+ cfqd->root_group = blkg_to_cfqg(q->root_blkg);
+#else
+ ret = -ENOMEM;
+ cfqd->root_group = kzalloc_node(sizeof(*cfqd->root_group),
+ GFP_KERNEL, cfqd->queue->node);
+ if (!cfqd->root_group)
+ goto out_free;
- /* Add group on cfqd->cfqg_list */
- hlist_add_head(&cfqg->cfqd_node, &cfqd->cfqg_list);
+ cfq_init_cfqg_base(cfqd->root_group);
#endif
+ cfqd->root_group->weight = 2 * CFQ_WEIGHT_DEFAULT;
+
/*
* Not strictly needed (since RB_ROOT just clears the node and we
* zeroed cfqd on alloc), but better be safe in case someone decides
/*
* Our fallback cfqq if cfq_find_alloc_queue() runs into OOM issues.
* Grab a permanent reference to it, so that the normal code flow
- * will not attempt to free it.
+ * will not attempt to free it. oom_cfqq is linked to root_group
+ * but shouldn't hold a reference as it'll never be unlinked. Lose
+ * the reference from linking right away.
*/
cfq_init_cfqq(cfqd, &cfqd->oom_cfqq, 1, 0);
cfqd->oom_cfqq.ref++;
- cfq_link_cfqq_cfqg(&cfqd->oom_cfqq, &cfqd->root_group);
- cfqd->queue = q;
+ spin_lock_irq(q->queue_lock);
+ cfq_link_cfqq_cfqg(&cfqd->oom_cfqq, cfqd->root_group);
+ cfqg_put(cfqd->root_group);
+ spin_unlock_irq(q->queue_lock);
init_timer(&cfqd->idle_slice_timer);
cfqd->idle_slice_timer.function = cfq_idle_slice_timer;
* second, in order to have larger depth for async operations.
*/
cfqd->last_delayed_sync = jiffies - HZ;
- return cfqd;
+ return 0;
+
+out_free:
+ kfree(cfqd);
+ return ret;
}
/*
};
#ifdef CONFIG_CFQ_GROUP_IOSCHED
-static struct blkio_policy_type blkio_policy_cfq = {
- .ops = {
- .blkio_unlink_group_fn = cfq_unlink_blkio_group,
- .blkio_update_group_weight_fn = cfq_update_blkio_group_weight,
- },
- .plid = BLKIO_POLICY_PROP,
+static struct blkcg_policy blkcg_policy_cfq = {
+ .pd_size = sizeof(struct cfq_group),
+ .cftypes = cfq_blkcg_files,
+
+ .pd_init_fn = cfq_pd_init,
+ .pd_reset_stats_fn = cfq_pd_reset_stats,
};
-#else
-static struct blkio_policy_type blkio_policy_cfq;
#endif
static int __init cfq_init(void)
#else
cfq_group_idle = 0;
#endif
+
+ ret = blkcg_policy_register(&blkcg_policy_cfq);
+ if (ret)
+ return ret;
+
cfq_pool = KMEM_CACHE(cfq_queue, 0);
if (!cfq_pool)
- return -ENOMEM;
+ goto err_pol_unreg;
ret = elv_register(&iosched_cfq);
- if (ret) {
- kmem_cache_destroy(cfq_pool);
- return ret;
- }
-
- blkio_policy_register(&blkio_policy_cfq);
+ if (ret)
+ goto err_free_pool;
return 0;
+
+err_free_pool:
+ kmem_cache_destroy(cfq_pool);
+err_pol_unreg:
+ blkcg_policy_unregister(&blkcg_policy_cfq);
+ return ret;
}
static void __exit cfq_exit(void)
{
- blkio_policy_unregister(&blkio_policy_cfq);
+ blkcg_policy_unregister(&blkcg_policy_cfq);
elv_unregister(&iosched_cfq);
kmem_cache_destroy(cfq_pool);
}
+++ /dev/null
-#ifndef _CFQ_H
-#define _CFQ_H
-#include "blk-cgroup.h"
-
-#ifdef CONFIG_CFQ_GROUP_IOSCHED
-static inline void cfq_blkiocg_update_io_add_stats(struct blkio_group *blkg,
- struct blkio_group *curr_blkg, bool direction, bool sync)
-{
- blkiocg_update_io_add_stats(blkg, curr_blkg, direction, sync);
-}
-
-static inline void cfq_blkiocg_update_dequeue_stats(struct blkio_group *blkg,
- unsigned long dequeue)
-{
- blkiocg_update_dequeue_stats(blkg, dequeue);
-}
-
-static inline void cfq_blkiocg_update_timeslice_used(struct blkio_group *blkg,
- unsigned long time, unsigned long unaccounted_time)
-{
- blkiocg_update_timeslice_used(blkg, time, unaccounted_time);
-}
-
-static inline void cfq_blkiocg_set_start_empty_time(struct blkio_group *blkg)
-{
- blkiocg_set_start_empty_time(blkg);
-}
-
-static inline void cfq_blkiocg_update_io_remove_stats(struct blkio_group *blkg,
- bool direction, bool sync)
-{
- blkiocg_update_io_remove_stats(blkg, direction, sync);
-}
-
-static inline void cfq_blkiocg_update_io_merged_stats(struct blkio_group *blkg,
- bool direction, bool sync)
-{
- blkiocg_update_io_merged_stats(blkg, direction, sync);
-}
-
-static inline void cfq_blkiocg_update_idle_time_stats(struct blkio_group *blkg)
-{
- blkiocg_update_idle_time_stats(blkg);
-}
-
-static inline void
-cfq_blkiocg_update_avg_queue_size_stats(struct blkio_group *blkg)
-{
- blkiocg_update_avg_queue_size_stats(blkg);
-}
-
-static inline void
-cfq_blkiocg_update_set_idle_time_stats(struct blkio_group *blkg)
-{
- blkiocg_update_set_idle_time_stats(blkg);
-}
-
-static inline void cfq_blkiocg_update_dispatch_stats(struct blkio_group *blkg,
- uint64_t bytes, bool direction, bool sync)
-{
- blkiocg_update_dispatch_stats(blkg, bytes, direction, sync);
-}
-
-static inline void cfq_blkiocg_update_completion_stats(struct blkio_group *blkg, uint64_t start_time, uint64_t io_start_time, bool direction, bool sync)
-{
- blkiocg_update_completion_stats(blkg, start_time, io_start_time,
- direction, sync);
-}
-
-static inline void cfq_blkiocg_add_blkio_group(struct blkio_cgroup *blkcg,
- struct blkio_group *blkg, void *key, dev_t dev) {
- blkiocg_add_blkio_group(blkcg, blkg, key, dev, BLKIO_POLICY_PROP);
-}
-
-static inline int cfq_blkiocg_del_blkio_group(struct blkio_group *blkg)
-{
- return blkiocg_del_blkio_group(blkg);
-}
-
-#else /* CFQ_GROUP_IOSCHED */
-static inline void cfq_blkiocg_update_io_add_stats(struct blkio_group *blkg,
- struct blkio_group *curr_blkg, bool direction, bool sync) {}
-
-static inline void cfq_blkiocg_update_dequeue_stats(struct blkio_group *blkg,
- unsigned long dequeue) {}
-
-static inline void cfq_blkiocg_update_timeslice_used(struct blkio_group *blkg,
- unsigned long time, unsigned long unaccounted_time) {}
-static inline void cfq_blkiocg_set_start_empty_time(struct blkio_group *blkg) {}
-static inline void cfq_blkiocg_update_io_remove_stats(struct blkio_group *blkg,
- bool direction, bool sync) {}
-static inline void cfq_blkiocg_update_io_merged_stats(struct blkio_group *blkg,
- bool direction, bool sync) {}
-static inline void cfq_blkiocg_update_idle_time_stats(struct blkio_group *blkg)
-{
-}
-static inline void
-cfq_blkiocg_update_avg_queue_size_stats(struct blkio_group *blkg) {}
-
-static inline void
-cfq_blkiocg_update_set_idle_time_stats(struct blkio_group *blkg) {}
-
-static inline void cfq_blkiocg_update_dispatch_stats(struct blkio_group *blkg,
- uint64_t bytes, bool direction, bool sync) {}
-static inline void cfq_blkiocg_update_completion_stats(struct blkio_group *blkg, uint64_t start_time, uint64_t io_start_time, bool direction, bool sync) {}
-
-static inline void cfq_blkiocg_add_blkio_group(struct blkio_cgroup *blkcg,
- struct blkio_group *blkg, void *key, dev_t dev) {}
-static inline int cfq_blkiocg_del_blkio_group(struct blkio_group *blkg)
-{
- return 0;
-}
-
-#endif /* CFQ_GROUP_IOSCHED */
-#endif
/*
* initialize elevator private data (deadline_data).
*/
-static void *deadline_init_queue(struct request_queue *q)
+static int deadline_init_queue(struct request_queue *q)
{
struct deadline_data *dd;
dd = kmalloc_node(sizeof(*dd), GFP_KERNEL | __GFP_ZERO, q->node);
if (!dd)
- return NULL;
+ return -ENOMEM;
INIT_LIST_HEAD(&dd->fifo_list[READ]);
INIT_LIST_HEAD(&dd->fifo_list[WRITE]);
dd->writes_starved = writes_starved;
dd->front_merges = 1;
dd->fifo_batch = fifo_batch;
- return dd;
+
+ q->elevator->elevator_data = dd;
+ return 0;
}
/*
#include <trace/events/block.h>
#include "blk.h"
+#include "blk-cgroup.h"
static DEFINE_SPINLOCK(elv_list_lock);
static LIST_HEAD(elv_list);
return e;
}
-static int elevator_init_queue(struct request_queue *q,
- struct elevator_queue *eq)
-{
- eq->elevator_data = eq->type->ops.elevator_init_fn(q);
- if (eq->elevator_data)
- return 0;
- return -ENOMEM;
-}
-
static char chosen_elevator[ELV_NAME_MAX];
static int __init elevator_setup(char *str)
int elevator_init(struct request_queue *q, char *name)
{
struct elevator_type *e = NULL;
- struct elevator_queue *eq;
int err;
if (unlikely(q->elevator))
}
}
- eq = elevator_alloc(q, e);
- if (!eq)
+ q->elevator = elevator_alloc(q, e);
+ if (!q->elevator)
return -ENOMEM;
- err = elevator_init_queue(q, eq);
+ err = e->ops.elevator_init_fn(q);
if (err) {
- kobject_put(&eq->kobj);
+ kobject_put(&q->elevator->kobj);
return err;
}
- q->elevator = eq;
return 0;
}
EXPORT_SYMBOL(elevator_init);
}
}
-void elv_quiesce_start(struct request_queue *q)
-{
- if (!q->elevator)
- return;
-
- spin_lock_irq(q->queue_lock);
- queue_flag_set(QUEUE_FLAG_ELVSWITCH, q);
- spin_unlock_irq(q->queue_lock);
-
- blk_drain_queue(q, false);
-}
-
-void elv_quiesce_end(struct request_queue *q)
-{
- spin_lock_irq(q->queue_lock);
- queue_flag_clear(QUEUE_FLAG_ELVSWITCH, q);
- spin_unlock_irq(q->queue_lock);
-}
-
void __elv_add_request(struct request_queue *q, struct request *rq, int where)
{
trace_block_rq_insert(q, rq);
return NULL;
}
-int elv_set_request(struct request_queue *q, struct request *rq, gfp_t gfp_mask)
+int elv_set_request(struct request_queue *q, struct request *rq,
+ struct bio *bio, gfp_t gfp_mask)
{
struct elevator_queue *e = q->elevator;
if (e->type->ops.elevator_set_req_fn)
- return e->type->ops.elevator_set_req_fn(q, rq, gfp_mask);
+ return e->type->ops.elevator_set_req_fn(q, rq, bio, gfp_mask);
return 0;
}
.release = elevator_release,
};
-int __elv_register_queue(struct request_queue *q, struct elevator_queue *e)
+int elv_register_queue(struct request_queue *q)
{
+ struct elevator_queue *e = q->elevator;
int error;
error = kobject_add(&e->kobj, &q->kobj, "%s", "iosched");
}
return error;
}
-
-int elv_register_queue(struct request_queue *q)
-{
- return __elv_register_queue(q, q->elevator);
-}
EXPORT_SYMBOL(elv_register_queue);
void elv_unregister_queue(struct request_queue *q)
*/
static int elevator_switch(struct request_queue *q, struct elevator_type *new_e)
{
- struct elevator_queue *old_elevator, *e;
+ struct elevator_queue *old = q->elevator;
+ bool registered = old->registered;
int err;
- /* allocate new elevator */
- e = elevator_alloc(q, new_e);
- if (!e)
- return -ENOMEM;
+ /*
+ * Turn on BYPASS and drain all requests w/ elevator private data.
+ * Block layer doesn't call into a quiesced elevator - all requests
+ * are directly put on the dispatch list without elevator data
+ * using INSERT_BACK. All requests have SOFTBARRIER set and no
+ * merge happens either.
+ */
+ blk_queue_bypass_start(q);
+
+ /* unregister and clear all auxiliary data of the old elevator */
+ if (registered)
+ elv_unregister_queue(q);
+
+ spin_lock_irq(q->queue_lock);
+ ioc_clear_queue(q);
+ spin_unlock_irq(q->queue_lock);
- err = elevator_init_queue(q, e);
+ /* allocate, init and register new elevator */
+ err = -ENOMEM;
+ q->elevator = elevator_alloc(q, new_e);
+ if (!q->elevator)
+ goto fail_init;
+
+ err = new_e->ops.elevator_init_fn(q);
if (err) {
- kobject_put(&e->kobj);
- return err;
+ kobject_put(&q->elevator->kobj);
+ goto fail_init;
}
- /* turn on BYPASS and drain all requests w/ elevator private data */
- elv_quiesce_start(q);
-
- /* unregister old queue, register new one and kill old elevator */
- if (q->elevator->registered) {
- elv_unregister_queue(q);
- err = __elv_register_queue(q, e);
+ if (registered) {
+ err = elv_register_queue(q);
if (err)
goto fail_register;
}
- /* done, clear io_cq's, switch elevators and turn off BYPASS */
- spin_lock_irq(q->queue_lock);
- ioc_clear_queue(q);
- old_elevator = q->elevator;
- q->elevator = e;
- spin_unlock_irq(q->queue_lock);
-
- elevator_exit(old_elevator);
- elv_quiesce_end(q);
+ /* done, kill the old one and finish */
+ elevator_exit(old);
+ blk_queue_bypass_end(q);
- blk_add_trace_msg(q, "elv switch: %s", e->type->elevator_name);
+ blk_add_trace_msg(q, "elv switch: %s", new_e->elevator_name);
return 0;
fail_register:
- /*
- * switch failed, exit the new io scheduler and reattach the old
- * one again (along with re-adding the sysfs dir)
- */
- elevator_exit(e);
+ elevator_exit(q->elevator);
+fail_init:
+ /* switch failed, restore and re-register old elevator */
+ q->elevator = old;
elv_register_queue(q);
- elv_quiesce_end(q);
+ blk_queue_bypass_end(q);
return err;
}
return list_entry(rq->queuelist.next, struct request, queuelist);
}
-static void *noop_init_queue(struct request_queue *q)
+static int noop_init_queue(struct request_queue *q)
{
struct noop_data *nd;
nd = kmalloc_node(sizeof(*nd), GFP_KERNEL, q->node);
if (!nd)
- return NULL;
+ return -ENOMEM;
+
INIT_LIST_HEAD(&nd->queue);
- return nd;
+ q->elevator->elevator_data = nd;
+ return 0;
}
static void noop_exit_queue(struct elevator_queue *e)
#include <linux/init.h>
#include <linux/device.h>
#include <linux/sysfs.h>
+#include <linux/io.h>
#include <acpi/acpi.h>
#include <acpi/acpi_bus.h>
#ifdef CONFIG_ACPI_SLEEP
/* do we have a wakeup address for S2 and S3? */
if (acpi_state == ACPI_STATE_S3) {
- if (!acpi_wakeup_address) {
+ if (!acpi_wakeup_address)
return -EFAULT;
- }
- acpi_set_firmware_waking_vector(
- (acpi_physical_address)acpi_wakeup_address);
+ acpi_set_firmware_waking_vector(acpi_wakeup_address);
}
ACPI_FLUSH_CPU_CACHE();
} else if (skb && card->using_dma) {
SKB_CB(skb)->dma_addr = pci_map_single(card->dev, skb->data,
skb->len, PCI_DMA_TODEVICE);
+ card->tx_skb[port] = skb;
iowrite32(SKB_CB(skb)->dma_addr,
card->config_regs + TX_DMA_ADDR(port));
}
db_fpga_upgrade = db_firmware_upgrade = 0;
}
- if (card->fpga_version >= DMA_SUPPORTED){
+ if (card->fpga_version >= DMA_SUPPORTED) {
+ pci_set_master(dev);
card->using_dma = 1;
} else {
card->using_dma = 0;
{
int n;
- n = nodelist_scnprintf(buf, PAGE_SIZE, node_states[state]);
- if (n > 0 && PAGE_SIZE > n + 1) {
- *(buf + n++) = '\n';
- *(buf + n++) = '\0';
- }
+ n = nodelist_scnprintf(buf, PAGE_SIZE-2, node_states[state]);
+ buf[n++] = '\n';
+ buf[n] = '\0';
return n;
}
/* If the I2C controller can't do a gather tell the core, it
* will substitute in a linear write for us.
*/
- if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_PROTOCOL_MANGLING))
+ if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_NOSTART))
return -ENOTSUPP;
xfer[0].addr = i2c->addr;
return &soc_dev->dev;
}
-static mode_t soc_attribute_mode(struct kobject *kobj,
+static umode_t soc_attribute_mode(struct kobject *kobj,
struct attribute *attr,
int index)
{
int w_al_write_transaction(struct drbd_conf *, struct drbd_work *, int);
+void *drbd_md_get_buffer(struct drbd_conf *mdev)
+{
+ int r;
+
+ wait_event(mdev->misc_wait,
+ (r = atomic_cmpxchg(&mdev->md_io_in_use, 0, 1)) == 0 ||
+ mdev->state.disk <= D_FAILED);
+
+ return r ? NULL : page_address(mdev->md_io_page);
+}
+
+void drbd_md_put_buffer(struct drbd_conf *mdev)
+{
+ if (atomic_dec_and_test(&mdev->md_io_in_use))
+ wake_up(&mdev->misc_wait);
+}
+
+static bool md_io_allowed(struct drbd_conf *mdev)
+{
+ enum drbd_disk_state ds = mdev->state.disk;
+ return ds >= D_NEGOTIATING || ds == D_ATTACHING;
+}
+
+void wait_until_done_or_disk_failure(struct drbd_conf *mdev, struct drbd_backing_dev *bdev,
+ unsigned int *done)
+{
+ long dt = bdev->dc.disk_timeout * HZ / 10;
+ if (dt == 0)
+ dt = MAX_SCHEDULE_TIMEOUT;
+
+ dt = wait_event_timeout(mdev->misc_wait, *done || !md_io_allowed(mdev), dt);
+ if (dt == 0)
+ dev_err(DEV, "meta-data IO operation timed out\n");
+}
+
static int _drbd_md_sync_page_io(struct drbd_conf *mdev,
struct drbd_backing_dev *bdev,
struct page *page, sector_t sector,
int rw, int size)
{
struct bio *bio;
- struct drbd_md_io md_io;
int ok;
- md_io.mdev = mdev;
- init_completion(&md_io.event);
- md_io.error = 0;
+ mdev->md_io.done = 0;
+ mdev->md_io.error = -ENODEV;
if ((rw & WRITE) && !test_bit(MD_NO_FUA, &mdev->flags))
rw |= REQ_FUA | REQ_FLUSH;
rw |= REQ_SYNC;
- bio = bio_alloc(GFP_NOIO, 1);
+ bio = bio_alloc_drbd(GFP_NOIO);
bio->bi_bdev = bdev->md_bdev;
bio->bi_sector = sector;
ok = (bio_add_page(bio, page, size, 0) == size);
if (!ok)
goto out;
- bio->bi_private = &md_io;
+ bio->bi_private = &mdev->md_io;
bio->bi_end_io = drbd_md_io_complete;
bio->bi_rw = rw;
+ if (!get_ldev_if_state(mdev, D_ATTACHING)) { /* Corresponding put_ldev in drbd_md_io_complete() */
+ dev_err(DEV, "ASSERT FAILED: get_ldev_if_state() == 1 in _drbd_md_sync_page_io()\n");
+ ok = 0;
+ goto out;
+ }
+
+ bio_get(bio); /* one bio_put() is in the completion handler */
+ atomic_inc(&mdev->md_io_in_use); /* drbd_md_put_buffer() is in the completion handler */
if (drbd_insert_fault(mdev, (rw & WRITE) ? DRBD_FAULT_MD_WR : DRBD_FAULT_MD_RD))
bio_endio(bio, -EIO);
else
submit_bio(rw, bio);
- wait_for_completion(&md_io.event);
- ok = bio_flagged(bio, BIO_UPTODATE) && md_io.error == 0;
+ wait_until_done_or_disk_failure(mdev, bdev, &mdev->md_io.done);
+ ok = bio_flagged(bio, BIO_UPTODATE) && mdev->md_io.error == 0;
out:
bio_put(bio);
int offset = 0;
struct page *iop = mdev->md_io_page;
- D_ASSERT(mutex_is_locked(&mdev->md_io_mutex));
+ D_ASSERT(atomic_read(&mdev->md_io_in_use) == 1);
BUG_ON(!bdev->md_bdev);
return 1;
}
- mutex_lock(&mdev->md_io_mutex); /* protects md_io_buffer, al_tr_cycle, ... */
- buffer = (struct al_transaction *)page_address(mdev->md_io_page);
+ buffer = drbd_md_get_buffer(mdev); /* protects md_io_buffer, al_tr_cycle, ... */
+ if (!buffer) {
+ dev_err(DEV, "disk failed while waiting for md_io buffer\n");
+ complete(&((struct update_al_work *)w)->event);
+ put_ldev(mdev);
+ return 1;
+ }
buffer->magic = __constant_cpu_to_be32(DRBD_MAGIC);
buffer->tr_number = cpu_to_be32(mdev->al_tr_number);
D_ASSERT(mdev->al_tr_pos < MD_AL_MAX_SIZE);
mdev->al_tr_number++;
- mutex_unlock(&mdev->md_io_mutex);
+ drbd_md_put_buffer(mdev);
complete(&((struct update_al_work *)w)->event);
put_ldev(mdev);
/* lock out all other meta data io for now,
* and make sure the page is mapped.
*/
- mutex_lock(&mdev->md_io_mutex);
- buffer = page_address(mdev->md_io_page);
+ buffer = drbd_md_get_buffer(mdev);
+ if (!buffer)
+ return 0;
/* Find the valid transaction in the log */
for (i = 0; i <= mx; i++) {
if (rv == 0)
continue;
if (rv == -1) {
- mutex_unlock(&mdev->md_io_mutex);
+ drbd_md_put_buffer(mdev);
return 0;
}
cnr = be32_to_cpu(buffer->tr_number);
if (!found_valid) {
dev_warn(DEV, "No usable activity log found.\n");
- mutex_unlock(&mdev->md_io_mutex);
+ drbd_md_put_buffer(mdev);
return 1;
}
rv = drbd_al_read_tr(mdev, bdev, buffer, i);
ERR_IF(rv == 0) goto cancel;
if (rv == -1) {
- mutex_unlock(&mdev->md_io_mutex);
+ drbd_md_put_buffer(mdev);
return 0;
}
mdev->al_tr_pos = 0;
/* ok, we are done with it */
- mutex_unlock(&mdev->md_io_mutex);
+ drbd_md_put_buffer(mdev);
dev_info(DEV, "Found %d transactions (%d active extents) in activity log.\n",
transactions, active_extents);
else
ext->rs_failed += count;
if (ext->rs_left < ext->rs_failed) {
- dev_err(DEV, "BAD! sector=%llus enr=%u rs_left=%d "
- "rs_failed=%d count=%d\n",
+ dev_warn(DEV, "BAD! sector=%llus enr=%u rs_left=%d "
+ "rs_failed=%d count=%d cstate=%s\n",
(unsigned long long)sector,
ext->lce.lc_number, ext->rs_left,
- ext->rs_failed, count);
- dump_stack();
-
- lc_put(mdev->resync, &ext->lce);
- drbd_force_state(mdev, NS(conn, C_DISCONNECTING));
- return;
+ ext->rs_failed, count,
+ drbd_conn_str(mdev->state.conn));
+
+ /* We don't expect to be able to clear more bits
+ * than have been set when we originally counted
+ * the set bits to cache that value in ext->rs_left.
+ * Whatever the reason (disconnect during resync,
+ * delayed local completion of an application write),
+ * try to fix it up by recounting here. */
+ ext->rs_left = drbd_bm_e_weight(mdev, enr);
}
} else {
/* Normally this element should be in the cache,
put_ldev(mdev);
}
spin_unlock_irq(&mdev->al_lock);
+ wake_up(&mdev->al_wait);
return 0;
}
static void bm_store_page_idx(struct page *page, unsigned long idx)
{
BUG_ON(0 != (idx & ~BM_PAGE_IDX_MASK));
- page_private(page) |= idx;
+ set_page_private(page, idx);
}
static unsigned long bm_page_to_idx(struct page *page)
struct bm_aio_ctx {
struct drbd_conf *mdev;
atomic_t in_flight;
- struct completion done;
+ unsigned int done;
unsigned flags;
#define BM_AIO_COPY_PAGES 1
int error;
+ struct kref kref;
};
+static void bm_aio_ctx_destroy(struct kref *kref)
+{
+ struct bm_aio_ctx *ctx = container_of(kref, struct bm_aio_ctx, kref);
+
+ put_ldev(ctx->mdev);
+ kfree(ctx);
+}
+
/* bv_page may be a copy, or may be the original */
static void bm_async_io_complete(struct bio *bio, int error)
{
bm_page_unlock_io(mdev, idx);
- /* FIXME give back to page pool */
if (ctx->flags & BM_AIO_COPY_PAGES)
- put_page(bio->bi_io_vec[0].bv_page);
+ mempool_free(bio->bi_io_vec[0].bv_page, drbd_md_io_page_pool);
bio_put(bio);
- if (atomic_dec_and_test(&ctx->in_flight))
- complete(&ctx->done);
+ if (atomic_dec_and_test(&ctx->in_flight)) {
+ ctx->done = 1;
+ wake_up(&mdev->misc_wait);
+ kref_put(&ctx->kref, &bm_aio_ctx_destroy);
+ }
}
static void bm_page_io_async(struct bm_aio_ctx *ctx, int page_nr, int rw) __must_hold(local)
{
- /* we are process context. we always get a bio */
- struct bio *bio = bio_alloc(GFP_KERNEL, 1);
+ struct bio *bio = bio_alloc_drbd(GFP_NOIO);
struct drbd_conf *mdev = ctx->mdev;
struct drbd_bitmap *b = mdev->bitmap;
struct page *page;
bm_set_page_unchanged(b->bm_pages[page_nr]);
if (ctx->flags & BM_AIO_COPY_PAGES) {
- /* FIXME alloc_page is good enough for now, but actually needs
- * to use pre-allocated page pool */
void *src, *dest;
- page = alloc_page(__GFP_HIGHMEM|__GFP_WAIT);
+ page = mempool_alloc(drbd_md_io_page_pool, __GFP_HIGHMEM|__GFP_WAIT);
dest = kmap_atomic(page);
src = kmap_atomic(b->bm_pages[page_nr]);
memcpy(dest, src, PAGE_SIZE);
bio->bi_bdev = mdev->ldev->md_bdev;
bio->bi_sector = on_disk_sector;
+ /* bio_add_page of a single page to an empty bio will always succeed,
+ * according to api. Do we want to assert that? */
bio_add_page(bio, page, len, 0);
bio->bi_private = ctx;
bio->bi_end_io = bm_async_io_complete;
/*
* bm_rw: read/write the whole bitmap from/to its on disk location.
*/
-static int bm_rw(struct drbd_conf *mdev, int rw, unsigned lazy_writeout_upper_idx) __must_hold(local)
+static int bm_rw(struct drbd_conf *mdev, int rw, unsigned flags, unsigned lazy_writeout_upper_idx) __must_hold(local)
{
- struct bm_aio_ctx ctx = {
- .mdev = mdev,
- .in_flight = ATOMIC_INIT(1),
- .done = COMPLETION_INITIALIZER_ONSTACK(ctx.done),
- .flags = lazy_writeout_upper_idx ? BM_AIO_COPY_PAGES : 0,
- };
+ struct bm_aio_ctx *ctx;
struct drbd_bitmap *b = mdev->bitmap;
int num_pages, i, count = 0;
unsigned long now;
* For lazy writeout, we don't care for ongoing changes to the bitmap,
* as we submit copies of pages anyways.
*/
- if (!ctx.flags)
+
+ ctx = kmalloc(sizeof(struct bm_aio_ctx), GFP_NOIO);
+ if (!ctx)
+ return -ENOMEM;
+
+ *ctx = (struct bm_aio_ctx) {
+ .mdev = mdev,
+ .in_flight = ATOMIC_INIT(1),
+ .done = 0,
+ .flags = flags,
+ .error = 0,
+ .kref = { ATOMIC_INIT(2) },
+ };
+
+ if (!get_ldev_if_state(mdev, D_ATTACHING)) { /* put is in bm_aio_ctx_destroy() */
+ dev_err(DEV, "ASSERT FAILED: get_ldev_if_state() == 1 in bm_rw()\n");
+ kfree(ctx);
+ return -ENODEV;
+ }
+
+ if (!ctx->flags)
WARN_ON(!(BM_LOCKED_MASK & b->bm_flags));
num_pages = b->bm_number_of_pages;
continue;
}
}
- atomic_inc(&ctx.in_flight);
- bm_page_io_async(&ctx, i, rw);
+ atomic_inc(&ctx->in_flight);
+ bm_page_io_async(ctx, i, rw);
++count;
cond_resched();
}
/*
- * We initialize ctx.in_flight to one to make sure bm_async_io_complete
- * will not complete() early, and decrement / test it here. If there
+ * We initialize ctx->in_flight to one to make sure bm_async_io_complete
+ * will not set ctx->done early, and decrement / test it here. If there
* are still some bios in flight, we need to wait for them here.
+ * If all IO is done already (or nothing had been submitted), there is
+ * no need to wait. Still, we need to put the kref associated with the
+ * "in_flight reached zero, all done" event.
*/
- if (!atomic_dec_and_test(&ctx.in_flight))
- wait_for_completion(&ctx.done);
+ if (!atomic_dec_and_test(&ctx->in_flight))
+ wait_until_done_or_disk_failure(mdev, mdev->ldev, &ctx->done);
+ else
+ kref_put(&ctx->kref, &bm_aio_ctx_destroy);
+
dev_info(DEV, "bitmap %s of %u pages took %lu jiffies\n",
rw == WRITE ? "WRITE" : "READ",
count, jiffies - now);
- if (ctx.error) {
+ if (ctx->error) {
dev_alert(DEV, "we had at least one MD IO ERROR during bitmap IO\n");
drbd_chk_io_error(mdev, 1, true);
- err = -EIO; /* ctx.error ? */
+ err = -EIO; /* ctx->error ? */
}
+ if (atomic_read(&ctx->in_flight))
+ err = -EIO; /* Disk failed during IO... */
+
now = jiffies;
if (rw == WRITE) {
drbd_md_flush(mdev);
dev_info(DEV, "%s (%lu bits) marked out-of-sync by on disk bit-map.\n",
ppsize(ppb, now << (BM_BLOCK_SHIFT-10)), now);
+ kref_put(&ctx->kref, &bm_aio_ctx_destroy);
return err;
}
*/
int drbd_bm_read(struct drbd_conf *mdev) __must_hold(local)
{
- return bm_rw(mdev, READ, 0);
+ return bm_rw(mdev, READ, 0, 0);
}
/**
*/
int drbd_bm_write(struct drbd_conf *mdev) __must_hold(local)
{
- return bm_rw(mdev, WRITE, 0);
+ return bm_rw(mdev, WRITE, 0, 0);
}
/**
*/
int drbd_bm_write_lazy(struct drbd_conf *mdev, unsigned upper_idx) __must_hold(local)
{
- return bm_rw(mdev, WRITE, upper_idx);
+ return bm_rw(mdev, WRITE, BM_AIO_COPY_PAGES, upper_idx);
+}
+
+/**
+ * drbd_bm_write_copy_pages() - Write the whole bitmap to its on disk location.
+ * @mdev: DRBD device.
+ *
+ * Will only write pages that have changed since last IO.
+ * In contrast to drbd_bm_write(), this will copy the bitmap pages
+ * to temporary writeout pages. It is intended to trigger a full write-out
+ * while still allowing the bitmap to change, for example if a resync or online
+ * verify is aborted due to a failed peer disk, while local IO continues, or
+ * pending resync acks are still being processed.
+ */
+int drbd_bm_write_copy_pages(struct drbd_conf *mdev) __must_hold(local)
+{
+ return bm_rw(mdev, WRITE, BM_AIO_COPY_PAGES, 0);
}
*/
int drbd_bm_write_page(struct drbd_conf *mdev, unsigned int idx) __must_hold(local)
{
- struct bm_aio_ctx ctx = {
+ struct bm_aio_ctx *ctx;
+ int err;
+
+ if (bm_test_page_unchanged(mdev->bitmap->bm_pages[idx])) {
+ dynamic_dev_dbg(DEV, "skipped bm page write for idx %u\n", idx);
+ return 0;
+ }
+
+ ctx = kmalloc(sizeof(struct bm_aio_ctx), GFP_NOIO);
+ if (!ctx)
+ return -ENOMEM;
+
+ *ctx = (struct bm_aio_ctx) {
.mdev = mdev,
.in_flight = ATOMIC_INIT(1),
- .done = COMPLETION_INITIALIZER_ONSTACK(ctx.done),
+ .done = 0,
.flags = BM_AIO_COPY_PAGES,
+ .error = 0,
+ .kref = { ATOMIC_INIT(2) },
};
- if (bm_test_page_unchanged(mdev->bitmap->bm_pages[idx])) {
- dynamic_dev_dbg(DEV, "skipped bm page write for idx %u\n", idx);
- return 0;
+ if (!get_ldev_if_state(mdev, D_ATTACHING)) { /* put is in bm_aio_ctx_destroy() */
+ dev_err(DEV, "ASSERT FAILED: get_ldev_if_state() == 1 in drbd_bm_write_page()\n");
+ kfree(ctx);
+ return -ENODEV;
}
- bm_page_io_async(&ctx, idx, WRITE_SYNC);
- wait_for_completion(&ctx.done);
+ bm_page_io_async(ctx, idx, WRITE_SYNC);
+ wait_until_done_or_disk_failure(mdev, mdev->ldev, &ctx->done);
- if (ctx.error)
+ if (ctx->error)
drbd_chk_io_error(mdev, 1, true);
/* that should force detach, so the in memory bitmap will be
* gone in a moment as well. */
mdev->bm_writ_cnt++;
- return ctx.error;
+ err = atomic_read(&ctx->in_flight) ? -EIO : ctx->error;
+ kref_put(&ctx->kref, &bm_aio_ctx_destroy);
+ return err;
}
/* NOTE
struct list_head tl_requests; /* ring list in the transfer log */
struct bio *master_bio; /* master bio pointer */
unsigned long rq_state; /* see comments above _req_mod() */
- int seq_num;
unsigned long start_time;
};
NEW_CUR_UUID, /* Create new current UUID when thawing IO */
AL_SUSPENDED, /* Activity logging is currently suspended. */
AHEAD_TO_SYNC_SOURCE, /* Ahead -> SyncSource queued */
+ STATE_SENT, /* Do not change state/UUIDs while this is set */
};
struct drbd_bitmap; /* opaque for drbd_conf */
BM_P_VMALLOCED = 0x10000, /* internal use only, will be masked out */
/* currently locked for bulk operation */
- BM_LOCKED_MASK = 0x7,
+ BM_LOCKED_MASK = 0xf,
/* in detail, that is: */
BM_DONT_CLEAR = 0x1,
BM_DONT_SET = 0x2,
BM_DONT_TEST = 0x4,
+ /* so we can mark it locked for bulk operation,
+ * and still allow all non-bulk operations */
+ BM_IS_LOCKED = 0x8,
+
/* (test bit, count bit) allowed (common case) */
- BM_LOCKED_TEST_ALLOWED = 0x3,
+ BM_LOCKED_TEST_ALLOWED = BM_DONT_CLEAR | BM_DONT_SET | BM_IS_LOCKED,
/* testing bits, as well as setting new bits allowed, but clearing bits
* would be unexpected. Used during bitmap receive. Setting new bits
* requires sending of "out-of-sync" information, though. */
- BM_LOCKED_SET_ALLOWED = 0x1,
+ BM_LOCKED_SET_ALLOWED = BM_DONT_CLEAR | BM_IS_LOCKED,
- /* clear is not expected while bitmap is locked for bulk operation */
+ /* for drbd_bm_write_copy_pages, everything is allowed,
+ * only concurrent bulk operations are locked out. */
+ BM_LOCKED_CHANGE_ALLOWED = BM_IS_LOCKED,
};
-
-/* TODO sort members for performance
- * MAYBE group them further */
-
-/* THINK maybe we actually want to use the default "event/%s" worker threads
- * or similar in linux 2.6, which uses per cpu data and threads.
- */
struct drbd_work_queue {
struct list_head q;
struct semaphore s; /* producers up it, worker down()s it */
};
struct drbd_md_io {
- struct drbd_conf *mdev;
- struct completion event;
+ unsigned int done;
int error;
};
struct drbd_tl_epoch *newest_tle;
struct drbd_tl_epoch *oldest_tle;
struct list_head out_of_sequence_requests;
+ struct list_head barrier_acked_requests;
struct hlist_head *tl_hash;
unsigned int tl_hash_s;
struct crypto_hash *csums_tfm;
struct crypto_hash *verify_tfm;
+ unsigned long last_reattach_jif;
+ unsigned long last_reconnect_jif;
struct drbd_thread receiver;
struct drbd_thread worker;
struct drbd_thread asender;
wait_queue_head_t ee_wait;
struct page *md_io_page; /* one page buffer for md_io */
struct page *md_io_tmpp; /* for logical_block_size != 512 */
- struct mutex md_io_mutex; /* protects the md_io_buffer */
+ struct drbd_md_io md_io;
+ atomic_t md_io_in_use; /* protects the md_io, md_io_page and md_io_tmpp */
spinlock_t al_lock;
wait_queue_head_t al_wait;
struct lru_cache *act_log; /* activity log */
extern int drbd_send_uuids_skip_initial_sync(struct drbd_conf *mdev);
extern int drbd_gen_and_send_sync_uuid(struct drbd_conf *mdev);
extern int drbd_send_sizes(struct drbd_conf *mdev, int trigger_reply, enum dds_flags flags);
-extern int _drbd_send_state(struct drbd_conf *mdev);
-extern int drbd_send_state(struct drbd_conf *mdev);
+extern int drbd_send_state(struct drbd_conf *mdev, union drbd_state s);
+extern int drbd_send_current_state(struct drbd_conf *mdev);
extern int _drbd_send_cmd(struct drbd_conf *mdev, struct socket *sock,
enum drbd_packets cmd, struct p_header80 *h,
size_t size, unsigned msg_flags);
extern int drbd_bm_write_page(struct drbd_conf *mdev, unsigned int idx) __must_hold(local);
extern int drbd_bm_read(struct drbd_conf *mdev) __must_hold(local);
extern int drbd_bm_write(struct drbd_conf *mdev) __must_hold(local);
+extern int drbd_bm_write_copy_pages(struct drbd_conf *mdev) __must_hold(local);
extern unsigned long drbd_bm_ALe_set_all(struct drbd_conf *mdev,
unsigned long al_enr);
extern size_t drbd_bm_words(struct drbd_conf *mdev);
extern mempool_t *drbd_request_mempool;
extern mempool_t *drbd_ee_mempool;
-extern struct page *drbd_pp_pool; /* drbd's page pool */
+/* drbd's page pool, used to buffer data received from the peer,
+ * or data requested by the peer.
+ *
+ * This does not have an emergency reserve.
+ *
+ * When allocating from this pool, it first takes pages from the pool.
+ * Only if the pool is depleted will try to allocate from the system.
+ *
+ * The assumption is that pages taken from this pool will be processed,
+ * and given back, "quickly", and then can be recycled, so we can avoid
+ * frequent calls to alloc_page(), and still will be able to make progress even
+ * under memory pressure.
+ */
+extern struct page *drbd_pp_pool;
extern spinlock_t drbd_pp_lock;
extern int drbd_pp_vacant;
extern wait_queue_head_t drbd_pp_wait;
+/* We also need a standard (emergency-reserve backed) page pool
+ * for meta data IO (activity log, bitmap).
+ * We can keep it global, as long as it is used as "N pages at a time".
+ * 128 should be plenty, currently we probably can get away with as few as 1.
+ */
+#define DRBD_MIN_POOL_PAGES 128
+extern mempool_t *drbd_md_io_page_pool;
+
+/* We also need to make sure we get a bio
+ * when we need it for housekeeping purposes */
+extern struct bio_set *drbd_md_io_bio_set;
+/* to allocate from that set */
+extern struct bio *bio_alloc_drbd(gfp_t gfp_mask);
+
extern rwlock_t global_state_lock;
extern struct drbd_conf *drbd_new_device(unsigned int minor);
extern void suspend_other_sg(struct drbd_conf *mdev);
extern int drbd_resync_finished(struct drbd_conf *mdev);
/* maybe rather drbd_main.c ? */
+extern void *drbd_md_get_buffer(struct drbd_conf *mdev);
+extern void drbd_md_put_buffer(struct drbd_conf *mdev);
extern int drbd_md_sync_page_io(struct drbd_conf *mdev,
- struct drbd_backing_dev *bdev, sector_t sector, int rw);
+ struct drbd_backing_dev *bdev, sector_t sector, int rw);
+extern void wait_until_done_or_disk_failure(struct drbd_conf *mdev, struct drbd_backing_dev *bdev,
+ unsigned int *done);
extern void drbd_ov_oos_found(struct drbd_conf*, sector_t, int);
extern void drbd_rs_controller_reset(struct drbd_conf *mdev);
#define page_chain_for_each_safe(page, n) \
for (; page && ({ n = page_chain_next(page); 1; }); page = n)
-static inline int drbd_bio_has_active_page(struct bio *bio)
-{
- struct bio_vec *bvec;
- int i;
-
- __bio_for_each_segment(bvec, bio, i, 0) {
- if (page_count(bvec->bv_page) > 1)
- return 1;
- }
-
- return 0;
-}
-
static inline int drbd_ee_has_active_page(struct drbd_epoch_entry *e)
{
struct page *page = e->pages;
return 0;
}
-
static inline void drbd_state_lock(struct drbd_conf *mdev)
{
wait_event(mdev->misc_wait,
* Note: currently we don't support such large bitmaps on 32bit
* arch anyways, but no harm done to be prepared for it here.
*/
- unsigned int shift = mdev->rs_total >= (1ULL << 32) ? 16 : 10;
+ unsigned int shift = mdev->rs_total > UINT_MAX ? 16 : 10;
unsigned long left = *bits_left >> shift;
unsigned long total = 1UL + (mdev->rs_total >> shift);
unsigned long tmp = 1000UL - left * 1000UL/total;
case D_OUTDATED:
case D_CONSISTENT:
case D_UP_TO_DATE:
+ case D_FAILED:
/* disk state is stable as well. */
break;
/* no new io accepted during tansitional states */
case D_ATTACHING:
- case D_FAILED:
case D_NEGOTIATING:
case D_UNKNOWN:
case D_MASK:
struct kmem_cache *drbd_al_ext_cache; /* activity log extents */
mempool_t *drbd_request_mempool;
mempool_t *drbd_ee_mempool;
+mempool_t *drbd_md_io_page_pool;
+struct bio_set *drbd_md_io_bio_set;
/* I do not use a standard mempool, because:
1) I want to hand out the pre-allocated objects first.
.release = drbd_release,
};
-#define ARRY_SIZE(A) (sizeof(A)/sizeof(A[0]))
+static void bio_destructor_drbd(struct bio *bio)
+{
+ bio_free(bio, drbd_md_io_bio_set);
+}
+
+struct bio *bio_alloc_drbd(gfp_t gfp_mask)
+{
+ struct bio *bio;
+
+ if (!drbd_md_io_bio_set)
+ return bio_alloc(gfp_mask, 1);
+
+ bio = bio_alloc_bioset(gfp_mask, 1, drbd_md_io_bio_set);
+ if (!bio)
+ return NULL;
+ bio->bi_destructor = bio_destructor_drbd;
+ return bio;
+}
#ifdef __CHECKER__
/* When checking with sparse, and this is an inline function, sparse will
mdev->oldest_tle = b;
mdev->newest_tle = b;
INIT_LIST_HEAD(&mdev->out_of_sequence_requests);
+ INIT_LIST_HEAD(&mdev->barrier_acked_requests);
mdev->tl_hash = NULL;
mdev->tl_hash_s = 0;
new->n_writes = 0;
newest_before = mdev->newest_tle;
- /* never send a barrier number == 0, because that is special-cased
- * when using TCQ for our write ordering code */
- new->br_number = (newest_before->br_number+1) ?: 1;
+ new->br_number = newest_before->br_number+1;
if (mdev->newest_tle != new) {
mdev->newest_tle->next = new;
mdev->newest_tle = new;
These have been list_move'd to the out_of_sequence_requests list in
_req_mod(, barrier_acked) above.
*/
- list_del_init(&b->requests);
+ list_splice_init(&b->requests, &mdev->barrier_acked_requests);
nob = b->next;
if (test_and_clear_bit(CREATE_BARRIER, &mdev->flags)) {
b = tmp;
list_splice(&carry_reads, &b->requests);
}
+
+ /* Actions operating on the disk state, also want to work on
+ requests that got barrier acked. */
+ switch (what) {
+ case fail_frozen_disk_io:
+ case restart_frozen_disk_io:
+ list_for_each_safe(le, tle, &mdev->barrier_acked_requests) {
+ req = list_entry(le, struct drbd_request, tl_requests);
+ _req_mod(req, what);
+ }
+
+ case connection_lost_while_pending:
+ case resend:
+ break;
+ default:
+ dev_err(DEV, "what = %d in _tl_restart()\n", what);
+ }
}
spin_unlock_irq(&mdev->req_lock);
}
+/**
+ * tl_abort_disk_io() - Abort disk I/O for all requests for a certain mdev in the TL
+ * @mdev: DRBD device.
+ */
+void tl_abort_disk_io(struct drbd_conf *mdev)
+{
+ struct drbd_tl_epoch *b;
+ struct list_head *le, *tle;
+ struct drbd_request *req;
+
+ spin_lock_irq(&mdev->req_lock);
+ b = mdev->oldest_tle;
+ while (b) {
+ list_for_each_safe(le, tle, &b->requests) {
+ req = list_entry(le, struct drbd_request, tl_requests);
+ if (!(req->rq_state & RQ_LOCAL_PENDING))
+ continue;
+ _req_mod(req, abort_disk_io);
+ }
+ b = b->next;
+ }
+
+ list_for_each_safe(le, tle, &mdev->barrier_acked_requests) {
+ req = list_entry(le, struct drbd_request, tl_requests);
+ if (!(req->rq_state & RQ_LOCAL_PENDING))
+ continue;
+ _req_mod(req, abort_disk_io);
+ }
+
+ spin_unlock_irq(&mdev->req_lock);
+}
+
/**
* cl_wide_st_chg() - true if the state change is a cluster wide one
* @mdev: DRBD device.
((os.role != R_PRIMARY && ns.role == R_PRIMARY) ||
(os.conn != C_STARTING_SYNC_T && ns.conn == C_STARTING_SYNC_T) ||
(os.conn != C_STARTING_SYNC_S && ns.conn == C_STARTING_SYNC_S) ||
- (os.disk != D_DISKLESS && ns.disk == D_DISKLESS))) ||
+ (os.disk != D_FAILED && ns.disk == D_FAILED))) ||
(os.conn >= C_CONNECTED && ns.conn == C_DISCONNECTING) ||
(os.conn == C_CONNECTED && ns.conn == C_VERIFY_S);
}
static enum drbd_state_rv is_valid_state_transition(struct drbd_conf *,
union drbd_state,
union drbd_state);
+enum sanitize_state_warnings {
+ NO_WARNING,
+ ABORTED_ONLINE_VERIFY,
+ ABORTED_RESYNC,
+ CONNECTION_LOST_NEGOTIATING,
+ IMPLICITLY_UPGRADED_DISK,
+ IMPLICITLY_UPGRADED_PDSK,
+};
static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state os,
- union drbd_state ns, const char **warn_sync_abort);
+ union drbd_state ns, enum sanitize_state_warnings *warn);
int drbd_send_state_req(struct drbd_conf *,
union drbd_state, union drbd_state);
if (ns.conn == os.conn && ns.conn == C_WF_REPORT_PARAMS)
rv = SS_IN_TRANSIENT_STATE;
+ /* While establishing a connection only allow cstate to change.
+ Delay/refuse role changes, detach attach etc... */
+ if (test_bit(STATE_SENT, &mdev->flags) &&
+ !(os.conn == C_WF_REPORT_PARAMS ||
+ (ns.conn == C_WF_REPORT_PARAMS && os.conn == C_WF_CONNECTION)))
+ rv = SS_IN_TRANSIENT_STATE;
+
if ((ns.conn == C_VERIFY_S || ns.conn == C_VERIFY_T) && os.conn < C_CONNECTED)
rv = SS_NEED_CONNECTION;
return rv;
}
+static void print_sanitize_warnings(struct drbd_conf *mdev, enum sanitize_state_warnings warn)
+{
+ static const char *msg_table[] = {
+ [NO_WARNING] = "",
+ [ABORTED_ONLINE_VERIFY] = "Online-verify aborted.",
+ [ABORTED_RESYNC] = "Resync aborted.",
+ [CONNECTION_LOST_NEGOTIATING] = "Connection lost while negotiating, no data!",
+ [IMPLICITLY_UPGRADED_DISK] = "Implicitly upgraded disk",
+ [IMPLICITLY_UPGRADED_PDSK] = "Implicitly upgraded pdsk",
+ };
+
+ if (warn != NO_WARNING)
+ dev_warn(DEV, "%s\n", msg_table[warn]);
+}
+
/**
* sanitize_state() - Resolves implicitly necessary additional changes to a state transition
* @mdev: DRBD device.
* to D_UNKNOWN. This rule and many more along those lines are in this function.
*/
static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state os,
- union drbd_state ns, const char **warn_sync_abort)
+ union drbd_state ns, enum sanitize_state_warnings *warn)
{
enum drbd_fencing_p fp;
enum drbd_disk_state disk_min, disk_max, pdsk_min, pdsk_max;
+ if (warn)
+ *warn = NO_WARNING;
+
fp = FP_DONT_CARE;
if (get_ldev(mdev)) {
fp = mdev->ldev->dc.fencing;
/* After a network error (+C_TEAR_DOWN) only C_UNCONNECTED or C_DISCONNECTING can follow.
* If you try to go into some Sync* state, that shall fail (elsewhere). */
if (os.conn >= C_TIMEOUT && os.conn <= C_TEAR_DOWN &&
- ns.conn != C_UNCONNECTED && ns.conn != C_DISCONNECTING && ns.conn <= C_TEAR_DOWN)
+ ns.conn != C_UNCONNECTED && ns.conn != C_DISCONNECTING && ns.conn <= C_CONNECTED)
ns.conn = os.conn;
/* we cannot fail (again) if we already detached */
if (ns.disk == D_FAILED && os.disk == D_DISKLESS)
ns.disk = D_DISKLESS;
- /* if we are only D_ATTACHING yet,
- * we can (and should) go directly to D_DISKLESS. */
- if (ns.disk == D_FAILED && os.disk == D_ATTACHING)
- ns.disk = D_DISKLESS;
-
/* After C_DISCONNECTING only C_STANDALONE may follow */
if (os.conn == C_DISCONNECTING && ns.conn != C_STANDALONE)
ns.conn = os.conn;
/* Abort resync if a disk fails/detaches */
if (os.conn > C_CONNECTED && ns.conn > C_CONNECTED &&
(ns.disk <= D_FAILED || ns.pdsk <= D_FAILED)) {
- if (warn_sync_abort)
- *warn_sync_abort =
- os.conn == C_VERIFY_S || os.conn == C_VERIFY_T ?
- "Online-verify" : "Resync";
+ if (warn)
+ *warn = os.conn == C_VERIFY_S || os.conn == C_VERIFY_T ?
+ ABORTED_ONLINE_VERIFY : ABORTED_RESYNC;
ns.conn = C_CONNECTED;
}
ns.disk = mdev->new_state_tmp.disk;
ns.pdsk = mdev->new_state_tmp.pdsk;
} else {
- dev_alert(DEV, "Connection lost while negotiating, no data!\n");
+ if (warn)
+ *warn = CONNECTION_LOST_NEGOTIATING;
ns.disk = D_DISKLESS;
ns.pdsk = D_UNKNOWN;
}
ns.disk = disk_max;
if (ns.disk < disk_min) {
- dev_warn(DEV, "Implicitly set disk from %s to %s\n",
- drbd_disk_str(ns.disk), drbd_disk_str(disk_min));
+ if (warn)
+ *warn = IMPLICITLY_UPGRADED_DISK;
ns.disk = disk_min;
}
if (ns.pdsk > pdsk_max)
ns.pdsk = pdsk_max;
if (ns.pdsk < pdsk_min) {
- dev_warn(DEV, "Implicitly set pdsk from %s to %s\n",
- drbd_disk_str(ns.pdsk), drbd_disk_str(pdsk_min));
+ if (warn)
+ *warn = IMPLICITLY_UPGRADED_PDSK;
ns.pdsk = pdsk_min;
}
{
union drbd_state os;
enum drbd_state_rv rv = SS_SUCCESS;
- const char *warn_sync_abort = NULL;
+ enum sanitize_state_warnings ssw;
struct after_state_chg_work *ascw;
os = mdev->state;
- ns = sanitize_state(mdev, os, ns, &warn_sync_abort);
+ ns = sanitize_state(mdev, os, ns, &ssw);
if (ns.i == os.i)
return SS_NOTHING_TO_DO;
return rv;
}
- if (warn_sync_abort)
- dev_warn(DEV, "%s aborted.\n", warn_sync_abort);
+ print_sanitize_warnings(mdev, ssw);
{
char *pbp, pb[300];
drbd_thread_stop_nowait(&mdev->receiver);
/* Upon network failure, we need to restart the receiver. */
- if (os.conn > C_TEAR_DOWN &&
+ if (os.conn > C_WF_CONNECTION &&
ns.conn <= C_TEAR_DOWN && ns.conn >= C_TIMEOUT)
drbd_thread_restart_nowait(&mdev->receiver);
if (os.conn < C_CONNECTED && ns.conn >= C_CONNECTED)
drbd_resume_al(mdev);
+ /* remember last connect and attach times so request_timer_fn() won't
+ * kill newly established sessions while we are still trying to thaw
+ * previously frozen IO */
+ if (os.conn != C_WF_REPORT_PARAMS && ns.conn == C_WF_REPORT_PARAMS)
+ mdev->last_reconnect_jif = jiffies;
+ if ((os.disk == D_ATTACHING || os.disk == D_NEGOTIATING) &&
+ ns.disk > D_NEGOTIATING)
+ mdev->last_reattach_jif = jiffies;
+
ascw = kmalloc(sizeof(*ascw), GFP_ATOMIC);
if (ascw) {
ascw->os = os;
/* Here we have the actions that are performed after a
state change. This function might sleep */
+ if (os.disk <= D_NEGOTIATING && ns.disk > D_NEGOTIATING)
+ mod_timer(&mdev->request_timer, jiffies + HZ);
+
nsm.i = -1;
if (ns.susp_nod) {
if (os.conn < C_CONNECTED && ns.conn >= C_CONNECTED)
what = resend;
- if (os.disk == D_ATTACHING && ns.disk > D_ATTACHING)
+ if ((os.disk == D_ATTACHING || os.disk == D_NEGOTIATING) &&
+ ns.disk > D_NEGOTIATING)
what = restart_frozen_disk_io;
if (what != nothing)
/* Do not change the order of the if above and the two below... */
if (os.pdsk == D_DISKLESS && ns.pdsk > D_DISKLESS) { /* attach on the peer */
drbd_send_uuids(mdev);
- drbd_send_state(mdev);
+ drbd_send_state(mdev, ns);
}
/* No point in queuing send_bitmap if we don't have a connection
* anymore, so check also the _current_ state, not only the new state
}
if (ns.pdsk < D_INCONSISTENT && get_ldev(mdev)) {
- if (ns.peer == R_PRIMARY && mdev->ldev->md.uuid[UI_BITMAP] == 0) {
+ if (os.peer == R_SECONDARY && ns.peer == R_PRIMARY &&
+ mdev->ldev->md.uuid[UI_BITMAP] == 0 && ns.disk >= D_UP_TO_DATE) {
drbd_uuid_new_current(mdev);
drbd_send_uuids(mdev);
}
-
/* D_DISKLESS Peer becomes secondary */
if (os.peer == R_PRIMARY && ns.peer == R_SECONDARY)
/* We may still be Primary ourselves.
os.disk == D_ATTACHING && ns.disk == D_NEGOTIATING) {
drbd_send_sizes(mdev, 0, 0); /* to start sync... */
drbd_send_uuids(mdev);
- drbd_send_state(mdev);
+ drbd_send_state(mdev, ns);
}
/* We want to pause/continue resync, tell peer. */
if (ns.conn >= C_CONNECTED &&
((os.aftr_isp != ns.aftr_isp) ||
(os.user_isp != ns.user_isp)))
- drbd_send_state(mdev);
+ drbd_send_state(mdev, ns);
/* In case one of the isp bits got set, suspend other devices. */
if ((!os.aftr_isp && !os.peer_isp && !os.user_isp) &&
/* Make sure the peer gets informed about eventual state
changes (ISP bits) while we were in WFReportParams. */
if (os.conn == C_WF_REPORT_PARAMS && ns.conn >= C_CONNECTED)
- drbd_send_state(mdev);
+ drbd_send_state(mdev, ns);
if (os.conn != C_AHEAD && ns.conn == C_AHEAD)
- drbd_send_state(mdev);
+ drbd_send_state(mdev, ns);
/* We are in the progress to start a full sync... */
if ((os.conn != C_STARTING_SYNC_T && ns.conn == C_STARTING_SYNC_T) ||
/* first half of local IO error, failure to attach,
* or administrative detach */
if (os.disk != D_FAILED && ns.disk == D_FAILED) {
- enum drbd_io_error_p eh;
- int was_io_error;
+ enum drbd_io_error_p eh = EP_PASS_ON;
+ int was_io_error = 0;
/* corresponding get_ldev was in __drbd_set_state, to serialize
- * our cleanup here with the transition to D_DISKLESS,
- * so it is safe to dreference ldev here. */
- eh = mdev->ldev->dc.on_io_error;
- was_io_error = test_and_clear_bit(WAS_IO_ERROR, &mdev->flags);
-
- /* current state still has to be D_FAILED,
- * there is only one way out: to D_DISKLESS,
- * and that may only happen after our put_ldev below. */
- if (mdev->state.disk != D_FAILED)
- dev_err(DEV,
- "ASSERT FAILED: disk is %s during detach\n",
- drbd_disk_str(mdev->state.disk));
-
- if (drbd_send_state(mdev))
- dev_warn(DEV, "Notified peer that I am detaching my disk\n");
- else
- dev_err(DEV, "Sending state for detaching disk failed\n");
-
- drbd_rs_cancel_all(mdev);
-
- /* In case we want to get something to stable storage still,
- * this may be the last chance.
- * Following put_ldev may transition to D_DISKLESS. */
- drbd_md_sync(mdev);
+ * our cleanup here with the transition to D_DISKLESS.
+ * But is is still not save to dreference ldev here, since
+ * we might come from an failed Attach before ldev was set. */
+ if (mdev->ldev) {
+ eh = mdev->ldev->dc.on_io_error;
+ was_io_error = test_and_clear_bit(WAS_IO_ERROR, &mdev->flags);
+
+ /* Immediately allow completion of all application IO, that waits
+ for completion from the local disk. */
+ tl_abort_disk_io(mdev);
+
+ /* current state still has to be D_FAILED,
+ * there is only one way out: to D_DISKLESS,
+ * and that may only happen after our put_ldev below. */
+ if (mdev->state.disk != D_FAILED)
+ dev_err(DEV,
+ "ASSERT FAILED: disk is %s during detach\n",
+ drbd_disk_str(mdev->state.disk));
+
+ if (ns.conn >= C_CONNECTED)
+ drbd_send_state(mdev, ns);
+
+ drbd_rs_cancel_all(mdev);
+
+ /* In case we want to get something to stable storage still,
+ * this may be the last chance.
+ * Following put_ldev may transition to D_DISKLESS. */
+ drbd_md_sync(mdev);
+ }
put_ldev(mdev);
if (was_io_error && eh == EP_CALL_HELPER)
mdev->rs_failed = 0;
atomic_set(&mdev->rs_pending_cnt, 0);
- if (drbd_send_state(mdev))
- dev_warn(DEV, "Notified peer that I'm now diskless.\n");
+ if (ns.conn >= C_CONNECTED)
+ drbd_send_state(mdev, ns);
+
/* corresponding get_ldev in __drbd_set_state
* this may finally trigger drbd_ldev_destroy. */
put_ldev(mdev);
}
/* Notify peer that I had a local IO error, and did not detached.. */
- if (os.disk == D_UP_TO_DATE && ns.disk == D_INCONSISTENT)
- drbd_send_state(mdev);
+ if (os.disk == D_UP_TO_DATE && ns.disk == D_INCONSISTENT && ns.conn >= C_CONNECTED)
+ drbd_send_state(mdev, ns);
/* Disks got bigger while they were detached */
if (ns.disk > D_NEGOTIATING && ns.pdsk > D_NEGOTIATING &&
/* sync target done with resync. Explicitly notify peer, even though
* it should (at least for non-empty resyncs) already know itself. */
if (os.disk < D_UP_TO_DATE && os.conn >= C_SYNC_SOURCE && ns.conn == C_CONNECTED)
- drbd_send_state(mdev);
+ drbd_send_state(mdev, ns);
+
+ /* Wake up role changes, that were delayed because of connection establishing */
+ if (os.conn == C_WF_REPORT_PARAMS && ns.conn != C_WF_REPORT_PARAMS) {
+ clear_bit(STATE_SENT, &mdev->flags);
+ wake_up(&mdev->state_wait);
+ }
/* This triggers bitmap writeout of potentially still unwritten pages
* if the resync finished cleanly, or aborted because of peer disk
* No harm done if some bits change during this phase.
*/
if (os.conn > C_CONNECTED && ns.conn <= C_CONNECTED && get_ldev(mdev)) {
- drbd_queue_bitmap_io(mdev, &drbd_bm_write, NULL,
- "write from resync_finished", BM_LOCKED_SET_ALLOWED);
+ drbd_queue_bitmap_io(mdev, &drbd_bm_write_copy_pages, NULL,
+ "write from resync_finished", BM_LOCKED_CHANGE_ALLOWED);
put_ldev(mdev);
}
D_ASSERT(mdev->state.disk == D_UP_TO_DATE);
- uuid = mdev->ldev->md.uuid[UI_BITMAP] + UUID_NEW_BM_OFFSET;
+ uuid = mdev->ldev->md.uuid[UI_BITMAP];
+ if (uuid && uuid != UUID_JUST_CREATED)
+ uuid = uuid + UUID_NEW_BM_OFFSET;
+ else
+ get_random_bytes(&uuid, sizeof(u64));
drbd_uuid_set(mdev, UI_BITMAP, uuid);
drbd_print_uuids(mdev, "updated sync UUID");
drbd_md_sync(mdev);
max_bio_size = DRBD_MAX_BIO_SIZE; /* ... multiple BIOs per peer_request */
}
+ /* Never allow old drbd (up to 8.3.7) to see more than 32KiB */
+ if (mdev->agreed_pro_version <= 94)
+ max_bio_size = min_t(int, max_bio_size, DRBD_MAX_SIZE_H80_PACKET);
+
p.d_size = cpu_to_be64(d_size);
p.u_size = cpu_to_be64(u_size);
p.c_size = cpu_to_be64(trigger_reply ? 0 : drbd_get_capacity(mdev->this_bdev));
}
/**
- * drbd_send_state() - Sends the drbd state to the peer
+ * drbd_send_current_state() - Sends the drbd state to the peer
* @mdev: DRBD device.
*/
-int drbd_send_state(struct drbd_conf *mdev)
+int drbd_send_current_state(struct drbd_conf *mdev)
{
struct socket *sock;
struct p_state p;
return ok;
}
+/**
+ * drbd_send_state() - After a state change, sends the new state to the peer
+ * @mdev: DRBD device.
+ * @state: the state to send, not necessarily the current state.
+ *
+ * Each state change queues an "after_state_ch" work, which will eventually
+ * send the resulting new state to the peer. If more state changes happen
+ * between queuing and processing of the after_state_ch work, we still
+ * want to send each intermediary state in the order it occurred.
+ */
+int drbd_send_state(struct drbd_conf *mdev, union drbd_state state)
+{
+ struct socket *sock;
+ struct p_state p;
+ int ok = 0;
+
+ mutex_lock(&mdev->data.mutex);
+
+ p.state = cpu_to_be32(state.i);
+ sock = mdev->data.socket;
+
+ if (likely(sock != NULL)) {
+ ok = _drbd_send_cmd(mdev, sock, P_STATE,
+ (struct p_header80 *)&p, sizeof(p), 0);
+ }
+
+ mutex_unlock(&mdev->data.mutex);
+
+ return ok;
+}
+
int drbd_send_state_req(struct drbd_conf *mdev,
union drbd_state mask, union drbd_state val)
{
struct bio_vec *bvec;
int i;
/* hint all but last page with MSG_MORE */
- __bio_for_each_segment(bvec, bio, i, 0) {
+ bio_for_each_segment(bvec, bio, i) {
if (!_drbd_no_send_page(mdev, bvec->bv_page,
bvec->bv_offset, bvec->bv_len,
i == bio->bi_vcnt -1 ? 0 : MSG_MORE))
struct bio_vec *bvec;
int i;
/* hint all but last page with MSG_MORE */
- __bio_for_each_segment(bvec, bio, i, 0) {
+ bio_for_each_segment(bvec, bio, i) {
if (!_drbd_send_page(mdev, bvec->bv_page,
bvec->bv_offset, bvec->bv_len,
i == bio->bi_vcnt -1 ? 0 : MSG_MORE))
p.sector = cpu_to_be64(req->sector);
p.block_id = (unsigned long)req;
- p.seq_num = cpu_to_be32(req->seq_num =
- atomic_add_return(1, &mdev->packet_seq));
+ p.seq_num = cpu_to_be32(atomic_add_return(1, &mdev->packet_seq));
dp_flags = bio_flags_to_wire(mdev, req->master_bio->bi_rw);
atomic_set(&mdev->rs_sect_in, 0);
atomic_set(&mdev->rs_sect_ev, 0);
atomic_set(&mdev->ap_in_flight, 0);
+ atomic_set(&mdev->md_io_in_use, 0);
- mutex_init(&mdev->md_io_mutex);
mutex_init(&mdev->data.mutex);
mutex_init(&mdev->meta.mutex);
sema_init(&mdev->data.work.s, 0);
/* D_ASSERT(atomic_read(&drbd_pp_vacant)==0); */
+ if (drbd_md_io_bio_set)
+ bioset_free(drbd_md_io_bio_set);
+ if (drbd_md_io_page_pool)
+ mempool_destroy(drbd_md_io_page_pool);
if (drbd_ee_mempool)
mempool_destroy(drbd_ee_mempool);
if (drbd_request_mempool)
if (drbd_al_ext_cache)
kmem_cache_destroy(drbd_al_ext_cache);
+ drbd_md_io_bio_set = NULL;
+ drbd_md_io_page_pool = NULL;
drbd_ee_mempool = NULL;
drbd_request_mempool = NULL;
drbd_ee_cache = NULL;
drbd_bm_ext_cache = NULL;
drbd_al_ext_cache = NULL;
drbd_pp_pool = NULL;
+ drbd_md_io_page_pool = NULL;
+ drbd_md_io_bio_set = NULL;
/* caches */
drbd_request_cache = kmem_cache_create(
goto Enomem;
/* mempools */
+#ifdef COMPAT_HAVE_BIOSET_CREATE
+ drbd_md_io_bio_set = bioset_create(DRBD_MIN_POOL_PAGES, 0);
+ if (drbd_md_io_bio_set == NULL)
+ goto Enomem;
+#endif
+
+ drbd_md_io_page_pool = mempool_create_page_pool(DRBD_MIN_POOL_PAGES, 0);
+ if (drbd_md_io_page_pool == NULL)
+ goto Enomem;
+
drbd_request_mempool = mempool_create(number,
mempool_alloc_slab, mempool_free_slab, drbd_request_cache);
if (drbd_request_mempool == NULL)
if (!mdev)
return;
+ del_timer_sync(&mdev->request_timer);
+
/* paranoia asserts */
if (mdev->open_cnt != 0)
dev_err(DEV, "open_cnt = %d in %s:%u", mdev->open_cnt,
if (!get_ldev_if_state(mdev, D_FAILED))
return;
- mutex_lock(&mdev->md_io_mutex);
- buffer = (struct meta_data_on_disk *)page_address(mdev->md_io_page);
+ buffer = drbd_md_get_buffer(mdev);
+ if (!buffer)
+ goto out;
+
memset(buffer, 0, 512);
buffer->la_size = cpu_to_be64(drbd_get_capacity(mdev->this_bdev));
* since we updated it on metadata. */
mdev->ldev->md.la_size_sect = drbd_get_capacity(mdev->this_bdev);
- mutex_unlock(&mdev->md_io_mutex);
+ drbd_md_put_buffer(mdev);
+out:
put_ldev(mdev);
}
if (!get_ldev_if_state(mdev, D_ATTACHING))
return ERR_IO_MD_DISK;
- mutex_lock(&mdev->md_io_mutex);
- buffer = (struct meta_data_on_disk *)page_address(mdev->md_io_page);
+ buffer = drbd_md_get_buffer(mdev);
+ if (!buffer)
+ goto out;
if (!drbd_md_sync_page_io(mdev, bdev, bdev->md.md_offset, READ)) {
/* NOTE: can't do normal error processing here as this is
mdev->sync_conf.al_extents = 127;
err:
- mutex_unlock(&mdev->md_io_mutex);
+ drbd_md_put_buffer(mdev);
+ out:
put_ldev(mdev);
return rv;
static char buildtag[38] = "\0uilt-in";
if (buildtag[0] == 0) {
-#ifdef CONFIG_MODULES
- if (THIS_MODULE != NULL)
- sprintf(buildtag, "srcversion: %-24s", THIS_MODULE->srcversion);
- else
+#ifdef MODULE
+ sprintf(buildtag, "srcversion: %-24s", THIS_MODULE->srcversion);
+#else
+ buildtag[0] = 'b';
#endif
- buildtag[0] = 'b';
}
return buildtag;
*/
spin_lock_irq(&mdev->req_lock);
ns = mdev->state;
- if (ns.conn < C_WF_REPORT_PARAMS) {
+ if (ns.conn < C_WF_REPORT_PARAMS && !test_bit(STATE_SENT, &mdev->flags)) {
ns.pdsk = nps;
_drbd_set_state(mdev, ns, CS_VERBOSE, NULL);
}
/* if this was forced, we should consider sync */
if (forced)
drbd_send_uuids(mdev);
- drbd_send_state(mdev);
+ drbd_send_current_state(mdev);
}
drbd_md_sync(mdev);
Because new from 8.3.8 onwards the peer can use multiple
BIOs for a single peer_request */
if (mdev->state.conn >= C_CONNECTED) {
- if (mdev->agreed_pro_version < 94)
- peer = mdev->peer_max_bio_size;
- else if (mdev->agreed_pro_version == 94)
+ if (mdev->agreed_pro_version < 94) {
+ peer = min_t(int, mdev->peer_max_bio_size, DRBD_MAX_SIZE_H80_PACKET);
+ /* Correct old drbd (up to 8.3.7) if it believes it can do more than 32KiB */
+ } else if (mdev->agreed_pro_version == 94)
peer = DRBD_MAX_SIZE_H80_PACKET;
else /* drbd 8.3.8 onwards */
peer = DRBD_MAX_BIO_SIZE;
dev_err(DEV, "max capacity %llu smaller than disk size %llu\n",
(unsigned long long) drbd_get_max_capacity(nbc),
(unsigned long long) nbc->dc.disk_size);
- retcode = ERR_DISK_TO_SMALL;
+ retcode = ERR_DISK_TOO_SMALL;
goto fail;
}
}
if (drbd_get_capacity(nbc->md_bdev) < min_md_device_sectors) {
- retcode = ERR_MD_DISK_TO_SMALL;
+ retcode = ERR_MD_DISK_TOO_SMALL;
dev_warn(DEV, "refusing attach: md-device too small, "
"at least %llu sectors needed for this meta-disk type\n",
(unsigned long long) min_md_device_sectors);
* (we may currently be R_PRIMARY with no local disk...) */
if (drbd_get_max_capacity(nbc) <
drbd_get_capacity(mdev->this_bdev)) {
- retcode = ERR_DISK_TO_SMALL;
+ retcode = ERR_DISK_TOO_SMALL;
goto fail;
}
if (drbd_md_test_flag(nbc, MDF_CONSISTENT) &&
drbd_new_dev_size(mdev, nbc, 0) < nbc->md.la_size_sect) {
dev_warn(DEV, "refusing to truncate a consistent device\n");
- retcode = ERR_DISK_TO_SMALL;
+ retcode = ERR_DISK_TOO_SMALL;
goto force_diskless_dec;
}
{
enum drbd_ret_code retcode;
int ret;
+ struct detach dt = {};
+
+ if (!detach_from_tags(mdev, nlp->tag_list, &dt)) {
+ reply->ret_code = ERR_MANDATORY_TAG;
+ goto out;
+ }
+
+ if (dt.detach_force) {
+ drbd_force_state(mdev, NS(disk, D_FAILED));
+ reply->ret_code = SS_SUCCESS;
+ goto out;
+ }
+
drbd_suspend_io(mdev); /* so no-one is stuck in drbd_al_begin_io */
+ drbd_md_get_buffer(mdev); /* make sure there is no in-flight meta-data IO */
retcode = drbd_request_state(mdev, NS(disk, D_FAILED));
+ drbd_md_put_buffer(mdev);
/* D_FAILED will transition to DISKLESS. */
ret = wait_event_interruptible(mdev->misc_wait,
mdev->state.disk != D_FAILED);
drbd_resume_io(mdev);
+
if ((int)retcode == (int)SS_IS_DISKLESS)
retcode = SS_NOTHING_TO_DO;
if (ret)
retcode = ERR_INTR;
reply->ret_code = retcode;
+out:
return 0;
}
if (rs.no_resync && mdev->agreed_pro_version < 93) {
retcode = ERR_NEED_APV_93;
- goto fail;
+ goto fail_ldev;
}
if (mdev->ldev->known_size != drbd_get_capacity(mdev->ldev->backing_bdev))
fail:
reply->ret_code = retcode;
return 0;
+
+ fail_ldev:
+ put_ldev(mdev);
+ goto fail;
}
static int drbd_nl_syncer_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
/* If there is still bitmap IO pending, probably because of a previous
* resync just being finished, wait for it before requesting a new resync. */
+ drbd_suspend_io(mdev);
wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags));
retcode = _drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_T), CS_ORDERED);
retcode = drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_T));
}
+ drbd_resume_io(mdev);
reply->ret_code = retcode;
return 0;
/* If there is still bitmap IO pending, probably because of a previous
* resync just being finished, wait for it before requesting a new resync. */
+ drbd_suspend_io(mdev);
wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags));
retcode = _drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_S), CS_ORDERED);
} else
retcode = drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_S));
}
+ drbd_resume_io(mdev);
reply->ret_code = retcode;
return 0;
/* If there is still bitmap IO pending, e.g. previous resync or verify
* just being finished, wait for it before requesting a new resync. */
+ drbd_suspend_io(mdev);
wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags));
/* w_make_ov_request expects position to be aligned */
mdev->ov_start_sector = args.start_sector & ~BM_SECT_PER_BIT;
reply->ret_code = drbd_request_state(mdev,NS(conn,C_VERIFY_S));
+ drbd_resume_io(mdev);
return 0;
}
if (unlikely(v >= 1000000)) {
/* cool: > GiByte/s */
seq_printf(seq, "%ld,", v / 1000000);
- v /= 1000000;
+ v %= 1000000;
seq_printf(seq, "%03ld,%03ld", v/1000, v % 1000);
} else if (likely(v >= 1000))
seq_printf(seq, "%ld,%03ld", v/1000, v % 1000);
goto out;
}
(*newsock)->ops = sock->ops;
+ __module_get((*newsock)->ops->owner);
out:
return err;
{
struct socket *s, *sock, *msock;
int try, h, ok;
+ enum drbd_state_rv rv;
D_ASSERT(!mdev->data.socket);
}
}
- if (drbd_request_state(mdev, NS(conn, C_WF_REPORT_PARAMS)) < SS_SUCCESS)
- return 0;
-
sock->sk->sk_sndtimeo = mdev->net_conf->timeout*HZ/10;
sock->sk->sk_rcvtimeo = MAX_SCHEDULE_TIMEOUT;
atomic_set(&mdev->packet_seq, 0);
mdev->peer_seq = 0;
- drbd_thread_start(&mdev->asender);
-
if (drbd_send_protocol(mdev) == -1)
return -1;
+ set_bit(STATE_SENT, &mdev->flags);
drbd_send_sync_param(mdev, &mdev->sync_conf);
drbd_send_sizes(mdev, 0, 0);
drbd_send_uuids(mdev);
- drbd_send_state(mdev);
+ drbd_send_current_state(mdev);
clear_bit(USE_DEGR_WFC_T, &mdev->flags);
clear_bit(RESIZE_PENDING, &mdev->flags);
+
+ spin_lock_irq(&mdev->req_lock);
+ rv = _drbd_set_state(_NS(mdev, conn, C_WF_REPORT_PARAMS), CS_VERBOSE, NULL);
+ if (mdev->state.conn != C_WF_REPORT_PARAMS)
+ clear_bit(STATE_SENT, &mdev->flags);
+ spin_unlock_irq(&mdev->req_lock);
+
+ if (rv < SS_SUCCESS)
+ return 0;
+
+ drbd_thread_start(&mdev->asender);
mod_timer(&mdev->request_timer, jiffies + HZ); /* just start it here. */
return 1;
rv = blkdev_issue_flush(mdev->ldev->backing_bdev, GFP_KERNEL,
NULL);
if (rv) {
- dev_err(DEV, "local disk flush failed with status %d\n", rv);
+ dev_info(DEV, "local disk flush failed with status %d\n", rv);
/* would rather check on EOPNOTSUPP, but that is not reliable.
* don't try again for ANY return value != 0
* if (rv == -EOPNOTSUPP) */
if (epoch_size != 0 &&
atomic_read(&epoch->active) == 0 &&
- test_bit(DE_HAVE_BARRIER_NUMBER, &epoch->flags)) {
+ (test_bit(DE_HAVE_BARRIER_NUMBER, &epoch->flags) || ev & EV_CLEANUP)) {
if (!(ev & EV_CLEANUP)) {
spin_unlock(&mdev->epoch_lock);
drbd_send_b_ack(mdev, epoch->barrier_nr, epoch_size);
spin_lock(&mdev->epoch_lock);
}
- dec_unacked(mdev);
+ if (test_bit(DE_HAVE_BARRIER_NUMBER, &epoch->flags))
+ dec_unacked(mdev);
if (mdev->current_epoch != epoch) {
next_epoch = list_entry(epoch->list.next, struct drbd_epoch, list);
/* In most cases, we will only need one bio. But in case the lower
* level restrictions happen to be different at this offset on this
* side than those of the sending peer, we may need to submit the
- * request in more than one bio. */
+ * request in more than one bio.
+ *
+ * Plain bio_alloc is good enough here, this is no DRBD internally
+ * generated bio, but a bio allocated on behalf of the peer.
+ */
next_bio:
bio = bio_alloc(GFP_NOIO, nr_pages);
if (!bio) {
return ok;
}
+static bool overlapping_resync_write(struct drbd_conf *mdev, struct drbd_epoch_entry *data_e)
+{
+
+ struct drbd_epoch_entry *rs_e;
+ bool rv = 0;
+
+ spin_lock_irq(&mdev->req_lock);
+ list_for_each_entry(rs_e, &mdev->sync_ee, w.list) {
+ if (overlaps(data_e->sector, data_e->size, rs_e->sector, rs_e->size)) {
+ rv = 1;
+ break;
+ }
+ }
+ spin_unlock_irq(&mdev->req_lock);
+
+ return rv;
+}
+
/* Called from receive_Data.
* Synchronize packets on sock with packets on msock.
*
list_add(&e->w.list, &mdev->active_ee);
spin_unlock_irq(&mdev->req_lock);
+ if (mdev->state.conn == C_SYNC_TARGET)
+ wait_event(mdev->ee_wait, !overlapping_resync_write(mdev, e));
+
switch (mdev->net_conf->wire_protocol) {
case DRBD_PROT_C:
inc_unacked(mdev);
mdev->p_uuid[UI_BITMAP] = mdev->p_uuid[UI_HISTORY_START];
mdev->p_uuid[UI_HISTORY_START] = mdev->p_uuid[UI_HISTORY_START + 1];
- dev_info(DEV, "Did not got last syncUUID packet, corrected:\n");
+ dev_info(DEV, "Lost last syncUUID packet, corrected:\n");
drbd_uuid_dump(mdev, "peer", mdev->p_uuid, mdev->p_uuid[UI_SIZE], mdev->p_uuid[UI_FLAGS]);
return -1;
if (apv >= 88) {
if (apv == 88) {
- if (data_size > SHARED_SECRET_MAX) {
- dev_err(DEV, "verify-alg too long, "
- "peer wants %u, accepting only %u byte\n",
- data_size, SHARED_SECRET_MAX);
+ if (data_size > SHARED_SECRET_MAX || data_size == 0) {
+ dev_err(DEV, "verify-alg of wrong size, "
+ "peer wants %u, accepting only up to %u byte\n",
+ data_size, SHARED_SECRET_MAX);
return false;
}
os = ns = mdev->state;
spin_unlock_irq(&mdev->req_lock);
- /* peer says his disk is uptodate, while we think it is inconsistent,
- * and this happens while we think we have a sync going on. */
- if (os.pdsk == D_INCONSISTENT && real_peer_disk == D_UP_TO_DATE &&
+ /* If some other part of the code (asender thread, timeout)
+ * already decided to close the connection again,
+ * we must not "re-establish" it here. */
+ if (os.conn <= C_TEAR_DOWN)
+ return false;
+
+ /* If this is the "end of sync" confirmation, usually the peer disk
+ * transitions from D_INCONSISTENT to D_UP_TO_DATE. For empty (0 bits
+ * set) resync started in PausedSyncT, or if the timing of pause-/
+ * unpause-sync events has been "just right", the peer disk may
+ * transition from D_CONSISTENT to D_UP_TO_DATE as well.
+ */
+ if ((os.pdsk == D_INCONSISTENT || os.pdsk == D_CONSISTENT) &&
+ real_peer_disk == D_UP_TO_DATE &&
os.conn > C_CONNECTED && os.disk == D_UP_TO_DATE) {
/* If we are (becoming) SyncSource, but peer is still in sync
* preparation, ignore its uptodate-ness to avoid flapping, it
/* Nowadays only used when forcing a node into primary role and
setting its disk to UpToDate with that */
drbd_send_uuids(mdev);
- drbd_send_state(mdev);
+ drbd_send_current_state(mdev);
}
}
if (mdev->state.conn == C_STANDALONE)
return;
+ /* We are about to start the cleanup after connection loss.
+ * Make sure drbd_make_request knows about that.
+ * Usually we should be in some network failure state already,
+ * but just in case we are not, we fix it up here.
+ */
+ drbd_force_state(mdev, NS(conn, C_NETWORK_FAILURE));
+
/* asender does not clean up anything. it must not interfere, either */
drbd_thread_stop(&mdev->asender);
drbd_free_sock(mdev);
atomic_set(&mdev->rs_pending_cnt, 0);
wake_up(&mdev->misc_wait);
- del_timer(&mdev->request_timer);
-
/* make sure syncer is stopped and w_resume_next_sg queued */
del_timer_sync(&mdev->resync_timer);
resync_timer_fn((unsigned long)mdev);
if (mdev->state.conn == C_AHEAD &&
atomic_read(&mdev->ap_in_flight) == 0 &&
- !test_and_set_bit(AHEAD_TO_SYNC_SOURCE, &mdev->current_epoch->flags)) {
+ !test_and_set_bit(AHEAD_TO_SYNC_SOURCE, &mdev->flags)) {
mdev->start_resync_timer.expires = jiffies + HZ;
add_timer(&mdev->start_resync_timer);
}
const int rw = bio_data_dir(bio);
int cpu;
cpu = part_stat_lock();
+ part_round_stats(cpu, &mdev->vdisk->part0);
part_stat_inc(cpu, &mdev->vdisk->part0, ios[rw]);
part_stat_add(cpu, &mdev->vdisk->part0, sectors[rw], bio_sectors(bio));
part_inc_in_flight(&mdev->vdisk->part0, rw);
{
const unsigned long s = req->rq_state;
struct drbd_conf *mdev = req->mdev;
- /* only WRITES may end up here without a master bio (on barrier ack) */
- int rw = req->master_bio ? bio_data_dir(req->master_bio) : WRITE;
+ int rw = req->rq_state & RQ_WRITE ? WRITE : READ;
/* we must not complete the master bio, while it is
* still being processed by _drbd_send_zc_bio (drbd_send_dblock)
return;
if (s & RQ_NET_PENDING)
return;
- if (s & RQ_LOCAL_PENDING)
+ if (s & RQ_LOCAL_PENDING && !(s & RQ_LOCAL_ABORTED))
return;
if (req->master_bio) {
req->master_bio = NULL;
}
+ if (s & RQ_LOCAL_PENDING)
+ return;
+
if ((s & RQ_NET_MASK) == 0 || (s & RQ_NET_DONE)) {
/* this is disconnected (local only) operation,
* or protocol C P_WRITE_ACK,
break;
case completed_ok:
- if (bio_data_dir(req->master_bio) == WRITE)
+ if (req->rq_state & RQ_WRITE)
mdev->writ_cnt += req->size>>9;
else
mdev->read_cnt += req->size>>9;
req->rq_state &= ~RQ_LOCAL_PENDING;
_req_may_be_done_not_susp(req, m);
- put_ldev(mdev);
+ break;
+
+ case abort_disk_io:
+ req->rq_state |= RQ_LOCAL_ABORTED;
+ if (req->rq_state & RQ_WRITE)
+ _req_may_be_done_not_susp(req, m);
+ else
+ goto goto_queue_for_net_read;
break;
case write_completed_with_error:
__drbd_chk_io_error(mdev, false);
_req_may_be_done_not_susp(req, m);
- put_ldev(mdev);
break;
case read_ahead_completed_with_error:
req->rq_state |= RQ_LOCAL_COMPLETED;
req->rq_state &= ~RQ_LOCAL_PENDING;
_req_may_be_done_not_susp(req, m);
- put_ldev(mdev);
break;
case read_completed_with_error:
D_ASSERT(!(req->rq_state & RQ_NET_MASK));
__drbd_chk_io_error(mdev, false);
- put_ldev(mdev);
+
+ goto_queue_for_net_read:
/* no point in retrying if there is no good remote data,
* or we have no connection. */
drbd_queue_work(&mdev->data.work, &req->w);
break;
- case oos_handed_to_network:
- /* actually the same */
+ case read_retry_remote_canceled:
case send_canceled:
- /* treat it the same */
case send_failed:
/* real cleanup will be done from tl_clear. just update flags
* so it is no longer marked as on the worker queue */
}
req->rq_state &= ~RQ_NET_QUEUED;
req->rq_state |= RQ_NET_SENT;
- /* because _drbd_send_zc_bio could sleep, and may want to
- * dereference the bio even after the "write_acked_by_peer" and
- * "completed_ok" events came in, once we return from
- * _drbd_send_zc_bio (drbd_send_dblock), we have to check
- * whether it is done already, and end it. */
_req_may_be_done_not_susp(req, m);
break;
- case read_retry_remote_canceled:
+ case oos_handed_to_network:
+ /* Was not set PENDING, no longer QUEUED, so is now DONE
+ * as far as this connection is concerned. */
req->rq_state &= ~RQ_NET_QUEUED;
- /* fall through, in case we raced with drbd_disconnect */
+ req->rq_state |= RQ_NET_DONE;
+ _req_may_be_done_not_susp(req, m);
+ break;
+
case connection_lost_while_pending:
/* transfer log cleanup after connection loss */
/* assert something? */
_req_may_be_done(req, m); /* Allowed while state.susp */
break;
- case write_acked_by_peer_and_sis:
- req->rq_state |= RQ_NET_SIS;
case conflict_discarded_by_peer:
/* for discarded conflicting writes of multiple primaries,
* there is no need to keep anything in the tl, potential
(unsigned long long)req->sector, req->size);
req->rq_state |= RQ_NET_DONE;
/* fall through */
+ case write_acked_by_peer_and_sis:
case write_acked_by_peer:
+ if (what == write_acked_by_peer_and_sis)
+ req->rq_state |= RQ_NET_SIS;
/* protocol C; successfully written on peer.
- * Nothing to do here.
+ * Nothing more to do here.
* We want to keep the tl in place for all protocols, to cater
- * for volatile write-back caches on lower level devices.
- *
- * A barrier request is expected to have forced all prior
- * requests onto stable storage, so completion of a barrier
- * request could set NET_DONE right here, and not wait for the
- * P_BARRIER_ACK, but that is an unnecessary optimization. */
+ * for volatile write-back caches on lower level devices. */
- /* this makes it effectively the same as for: */
case recv_acked_by_peer:
/* protocol B; pretends to be successfully written on peer.
* see also notes above in handed_over_to_network about
int local, remote, send_oos = 0;
int err = -EIO;
int ret = 0;
+ union drbd_state s;
/* allocate outside of all locks; */
req = drbd_req_new(mdev, bio);
drbd_al_begin_io(mdev, sector);
}
- remote = remote && drbd_should_do_remote(mdev->state);
- send_oos = rw == WRITE && drbd_should_send_oos(mdev->state);
+ s = mdev->state;
+ remote = remote && drbd_should_do_remote(s);
+ send_oos = rw == WRITE && drbd_should_send_oos(s);
D_ASSERT(!(remote && send_oos));
if (!(local || remote) && !is_susp(mdev->state)) {
if (is_susp(mdev->state)) {
/* If we got suspended, use the retry mechanism of
- generic_make_request() to restart processing of this
+ drbd_make_request() to restart processing of this
bio. In the next call to drbd_make_request
we sleep in inc_ap_bio() */
ret = 1;
*/
D_ASSERT(bio->bi_size > 0);
D_ASSERT((bio->bi_size & 0x1ff) == 0);
- D_ASSERT(bio->bi_idx == 0);
/* to make some things easier, force alignment of requests within the
* granularity of our hash tables */
e_enr = (bio->bi_sector+(bio->bi_size>>9)-1) >> HT_SHIFT;
if (likely(s_enr == e_enr)) {
- inc_ap_bio(mdev, 1);
- drbd_make_request_common(mdev, bio, start_time);
+ do {
+ inc_ap_bio(mdev, 1);
+ } while (drbd_make_request_common(mdev, bio, start_time));
return;
}
struct drbd_conf *mdev = (struct drbd_conf *) data;
struct drbd_request *req; /* oldest request */
struct list_head *le;
- unsigned long et = 0; /* effective timeout = ko_count * timeout */
+ unsigned long ent = 0, dt = 0, et, nt; /* effective timeout = ko_count * timeout */
+ unsigned long now;
if (get_net_conf(mdev)) {
- et = mdev->net_conf->timeout*HZ/10 * mdev->net_conf->ko_count;
+ if (mdev->state.conn >= C_WF_REPORT_PARAMS)
+ ent = mdev->net_conf->timeout*HZ/10
+ * mdev->net_conf->ko_count;
put_net_conf(mdev);
}
- if (!et || mdev->state.conn < C_WF_REPORT_PARAMS)
+ if (get_ldev(mdev)) { /* implicit state.disk >= D_INCONSISTENT */
+ dt = mdev->ldev->dc.disk_timeout * HZ / 10;
+ put_ldev(mdev);
+ }
+ et = min_not_zero(dt, ent);
+
+ if (!et)
return; /* Recurring timer stopped */
+ now = jiffies;
+
spin_lock_irq(&mdev->req_lock);
le = &mdev->oldest_tle->requests;
if (list_empty(le)) {
spin_unlock_irq(&mdev->req_lock);
- mod_timer(&mdev->request_timer, jiffies + et);
+ mod_timer(&mdev->request_timer, now + et);
return;
}
le = le->prev;
req = list_entry(le, struct drbd_request, tl_requests);
- if (time_is_before_eq_jiffies(req->start_time + et)) {
- if (req->rq_state & RQ_NET_PENDING) {
- dev_warn(DEV, "Remote failed to finish a request within ko-count * timeout\n");
- _drbd_set_state(_NS(mdev, conn, C_TIMEOUT), CS_VERBOSE, NULL);
- } else {
- dev_warn(DEV, "Local backing block device frozen?\n");
- mod_timer(&mdev->request_timer, jiffies + et);
- }
- } else {
- mod_timer(&mdev->request_timer, req->start_time + et);
- }
+ /* The request is considered timed out, if
+ * - we have some effective timeout from the configuration,
+ * with above state restrictions applied,
+ * - the oldest request is waiting for a response from the network
+ * resp. the local disk,
+ * - the oldest request is in fact older than the effective timeout,
+ * - the connection was established (resp. disk was attached)
+ * for longer than the timeout already.
+ * Note that for 32bit jiffies and very stable connections/disks,
+ * we may have a wrap around, which is catched by
+ * !time_in_range(now, last_..._jif, last_..._jif + timeout).
+ *
+ * Side effect: once per 32bit wrap-around interval, which means every
+ * ~198 days with 250 HZ, we have a window where the timeout would need
+ * to expire twice (worst case) to become effective. Good enough.
+ */
+ if (ent && req->rq_state & RQ_NET_PENDING &&
+ time_after(now, req->start_time + ent) &&
+ !time_in_range(now, mdev->last_reconnect_jif, mdev->last_reconnect_jif + ent)) {
+ dev_warn(DEV, "Remote failed to finish a request within ko-count * timeout\n");
+ _drbd_set_state(_NS(mdev, conn, C_TIMEOUT), CS_VERBOSE | CS_HARD, NULL);
+ }
+ if (dt && req->rq_state & RQ_LOCAL_PENDING &&
+ time_after(now, req->start_time + dt) &&
+ !time_in_range(now, mdev->last_reattach_jif, mdev->last_reattach_jif + dt)) {
+ dev_warn(DEV, "Local backing device failed to meet the disk-timeout\n");
+ __drbd_chk_io_error(mdev, 1);
+ }
+ nt = (time_after(now, req->start_time + et) ? now : req->start_time) + et;
spin_unlock_irq(&mdev->req_lock);
+ mod_timer(&mdev->request_timer, nt);
}
read_completed_with_error,
read_ahead_completed_with_error,
write_completed_with_error,
+ abort_disk_io,
completed_ok,
resend,
fail_frozen_disk_io,
* same time, so we should hold the request lock anyways.
*/
enum drbd_req_state_bits {
- /* 210
- * 000: no local possible
- * 001: to be submitted
+ /* 3210
+ * 0000: no local possible
+ * 0001: to be submitted
* UNUSED, we could map: 011: submitted, completion still pending
- * 110: completed ok
- * 010: completed with error
+ * 0110: completed ok
+ * 0010: completed with error
+ * 1001: Aborted (before completion)
+ * 1x10: Aborted and completed -> free
*/
__RQ_LOCAL_PENDING,
__RQ_LOCAL_COMPLETED,
__RQ_LOCAL_OK,
+ __RQ_LOCAL_ABORTED,
- /* 76543
+ /* 87654
* 00000: no network possible
* 00001: to be send
* 00011: to be send, on worker queue
#define RQ_LOCAL_PENDING (1UL << __RQ_LOCAL_PENDING)
#define RQ_LOCAL_COMPLETED (1UL << __RQ_LOCAL_COMPLETED)
#define RQ_LOCAL_OK (1UL << __RQ_LOCAL_OK)
+#define RQ_LOCAL_ABORTED (1UL << __RQ_LOCAL_ABORTED)
-#define RQ_LOCAL_MASK ((RQ_LOCAL_OK << 1)-1) /* 0x07 */
+#define RQ_LOCAL_MASK ((RQ_LOCAL_ABORTED << 1)-1)
#define RQ_NET_PENDING (1UL << __RQ_NET_PENDING)
#define RQ_NET_QUEUED (1UL << __RQ_NET_QUEUED)
void drbd_md_io_complete(struct bio *bio, int error)
{
struct drbd_md_io *md_io;
+ struct drbd_conf *mdev;
md_io = (struct drbd_md_io *)bio->bi_private;
+ mdev = container_of(md_io, struct drbd_conf, md_io);
+
md_io->error = error;
- complete(&md_io->event);
+ /* We grabbed an extra reference in _drbd_md_sync_page_io() to be able
+ * to timeout on the lower level device, and eventually detach from it.
+ * If this io completion runs after that timeout expired, this
+ * drbd_md_put_buffer() may allow us to finally try and re-attach.
+ * During normal operation, this only puts that extra reference
+ * down to 1 again.
+ * Make sure we first drop the reference, and only then signal
+ * completion, or we may (in drbd_al_read_log()) cycle so fast into the
+ * next drbd_md_sync_page_io(), that we trigger the
+ * ASSERT(atomic_read(&mdev->md_io_in_use) == 1) there.
+ */
+ drbd_md_put_buffer(mdev);
+ md_io->done = 1;
+ wake_up(&mdev->misc_wait);
+ bio_put(bio);
+ put_ldev(mdev);
}
/* reads on behalf of the partner,
spin_lock_irqsave(&mdev->req_lock, flags);
__req_mod(req, what, &m);
spin_unlock_irqrestore(&mdev->req_lock, flags);
+ put_ldev(mdev);
if (m.bio)
complete_master_bio(mdev, &m);
sg_init_table(&sg, 1);
crypto_hash_init(&desc);
- __bio_for_each_segment(bvec, bio, i, 0) {
+ bio_for_each_segment(bvec, bio, i) {
sg_set_page(&sg, bvec->bv_page, bvec->bv_len, bvec->bv_offset);
crypto_hash_update(&desc, &sg, sg.length);
}
}
drbd_start_resync(mdev, C_SYNC_SOURCE);
- clear_bit(AHEAD_TO_SYNC_SOURCE, &mdev->current_epoch->flags);
+ clear_bit(AHEAD_TO_SYNC_SOURCE, &mdev->flags);
return 1;
}
}
drbd_state_lock(mdev);
-
+ write_lock_irq(&global_state_lock);
if (!get_ldev_if_state(mdev, D_NEGOTIATING)) {
+ write_unlock_irq(&global_state_lock);
drbd_state_unlock(mdev);
return;
}
- write_lock_irq(&global_state_lock);
- ns = mdev->state;
+ ns.i = mdev->state.i;
ns.aftr_isp = !_drbd_may_sync_now(mdev);
static void floppy_start(void);
static void process_fd_request(void);
static void recalibrate_floppy(void);
-static void floppy_shutdown(unsigned long);
+static void floppy_shutdown(struct work_struct *);
static int floppy_request_regions(int);
static void floppy_release_regions(int);
static struct floppy_fdc_state fdc_state[N_FDC];
static int fdc; /* current fdc */
+static struct workqueue_struct *floppy_wq;
+
static struct floppy_struct *_floppy = floppy_type;
static unsigned char current_drive;
static long current_count_sectors;
static inline void debugt(const char *func, const char *msg) { }
#endif /* DEBUGT */
-typedef void (*timeout_fn)(unsigned long);
-static DEFINE_TIMER(fd_timeout, floppy_shutdown, 0, 0);
+static DECLARE_DELAYED_WORK(fd_timeout, floppy_shutdown);
static const char *timeout_message;
static void is_alive(const char *func, const char *message)
{
/* this routine checks whether the floppy driver is "alive" */
if (test_bit(0, &fdc_busy) && command_status < 2 &&
- !timer_pending(&fd_timeout)) {
+ !delayed_work_pending(&fd_timeout)) {
DPRINT("%s: timeout handler died. %s\n", func, message);
}
}
static void __reschedule_timeout(int drive, const char *message)
{
+ unsigned long delay;
+
if (drive == current_reqD)
drive = current_drive;
- del_timer(&fd_timeout);
+
if (drive < 0 || drive >= N_DRIVE) {
- fd_timeout.expires = jiffies + 20UL * HZ;
+ delay = 20UL * HZ;
drive = 0;
} else
- fd_timeout.expires = jiffies + UDP->timeout;
- add_timer(&fd_timeout);
+ delay = UDP->timeout;
+
+ queue_delayed_work(floppy_wq, &fd_timeout, delay);
if (UDP->flags & FD_DEBUG)
DPRINT("reschedule timeout %s\n", message);
timeout_message = message;
command_status = FD_COMMAND_NONE;
- __reschedule_timeout(drive, "lock fdc");
+ reschedule_timeout(drive, "lock fdc");
set_fdc(drive);
return 0;
}
/* unlocks the driver */
static void unlock_fdc(void)
{
- unsigned long flags;
-
- raw_cmd = NULL;
if (!test_bit(0, &fdc_busy))
DPRINT("FDC access conflict!\n");
- if (do_floppy)
- DPRINT("device interrupt still active at FDC release: %pf!\n",
- do_floppy);
+ raw_cmd = NULL;
command_status = FD_COMMAND_NONE;
- spin_lock_irqsave(&floppy_lock, flags);
- del_timer(&fd_timeout);
+ __cancel_delayed_work(&fd_timeout);
+ do_floppy = NULL;
cont = NULL;
clear_bit(0, &fdc_busy);
- if (current_req || set_next_request())
- do_fd_request(current_req->q);
- spin_unlock_irqrestore(&floppy_lock, flags);
wake_up(&fdc_wait);
}
static void schedule_bh(void (*handler)(void))
{
+ WARN_ON(work_pending(&floppy_work));
+
PREPARE_WORK(&floppy_work, (work_func_t)handler);
- schedule_work(&floppy_work);
+ queue_work(floppy_wq, &floppy_work);
}
-static DEFINE_TIMER(fd_timer, NULL, 0, 0);
+static DECLARE_DELAYED_WORK(fd_timer, NULL);
static void cancel_activity(void)
{
- unsigned long flags;
-
- spin_lock_irqsave(&floppy_lock, flags);
do_floppy = NULL;
- PREPARE_WORK(&floppy_work, (work_func_t)empty);
- del_timer(&fd_timer);
- spin_unlock_irqrestore(&floppy_lock, flags);
+ cancel_delayed_work_sync(&fd_timer);
+ cancel_work_sync(&floppy_work);
}
/* this function makes sure that the disk stays in the drive during the
* transfer */
-static void fd_watchdog(void)
+static void fd_watchdog(struct work_struct *arg)
{
debug_dcl(DP->flags, "calling disk change from watchdog\n");
cont->done(0);
reset_fdc();
} else {
- del_timer(&fd_timer);
- fd_timer.function = (timeout_fn)fd_watchdog;
- fd_timer.expires = jiffies + HZ / 10;
- add_timer(&fd_timer);
+ cancel_delayed_work(&fd_timer);
+ PREPARE_DELAYED_WORK(&fd_timer, fd_watchdog);
+ queue_delayed_work(floppy_wq, &fd_timer, HZ / 10);
}
}
static void main_command_interrupt(void)
{
- del_timer(&fd_timer);
+ cancel_delayed_work(&fd_timer);
cont->interrupt();
}
/* waits for a delay (spinup or select) to pass */
-static int fd_wait_for_completion(unsigned long delay, timeout_fn function)
+static int fd_wait_for_completion(unsigned long expires, work_func_t function)
{
if (FDCS->reset) {
reset_fdc(); /* do the reset during sleep to win time
return 1;
}
- if (time_before(jiffies, delay)) {
- del_timer(&fd_timer);
- fd_timer.function = function;
- fd_timer.expires = delay;
- add_timer(&fd_timer);
+ if (time_before(jiffies, expires)) {
+ cancel_delayed_work(&fd_timer);
+ PREPARE_DELAYED_WORK(&fd_timer, function);
+ queue_delayed_work(floppy_wq, &fd_timer, expires - jiffies);
return 1;
}
return 0;
*/
FDCS->dtr = raw_cmd->rate & 3;
return fd_wait_for_completion(jiffies + 2UL * HZ / 100,
- (timeout_fn)floppy_ready);
+ (work_func_t)floppy_ready);
} /* fdc_dtr */
static void tell_sector(void)
int flags;
int dflags;
unsigned long ready_date;
- timeout_fn function;
+ work_func_t function;
flags = raw_cmd->flags;
if (flags & (FD_RAW_READ | FD_RAW_WRITE))
*/
if (time_after(ready_date, jiffies + DP->select_delay)) {
ready_date -= DP->select_delay;
- function = (timeout_fn)floppy_start;
+ function = (work_func_t)floppy_start;
} else
- function = (timeout_fn)setup_rw_floppy;
+ function = (work_func_t)setup_rw_floppy;
/* wait until the floppy is spinning fast enough */
if (fd_wait_for_completion(ready_date, function))
inr = result();
cont->interrupt();
} else if (flags & FD_RAW_NEED_DISK)
- fd_watchdog();
+ fd_watchdog(NULL);
}
static int blind_seek;
pr_info("do_floppy=%pf\n", do_floppy);
if (work_pending(&floppy_work))
pr_info("floppy_work.func=%pf\n", floppy_work.func);
- if (timer_pending(&fd_timer))
- pr_info("fd_timer.function=%pf\n", fd_timer.function);
- if (timer_pending(&fd_timeout)) {
- pr_info("timer_function=%pf\n", fd_timeout.function);
- pr_info("expires=%lu\n", fd_timeout.expires - jiffies);
- pr_info("now=%lu\n", jiffies);
- }
+ if (delayed_work_pending(&fd_timer))
+ pr_info("delayed work.function=%p expires=%ld\n",
+ fd_timer.work.func,
+ fd_timer.timer.expires - jiffies);
+ if (delayed_work_pending(&fd_timeout))
+ pr_info("timer_function=%p expires=%ld\n",
+ fd_timeout.work.func,
+ fd_timeout.timer.expires - jiffies);
+
pr_info("cont=%p\n", cont);
pr_info("current_req=%p\n", current_req);
pr_info("command_status=%d\n", command_status);
pr_info("\n");
}
-static void floppy_shutdown(unsigned long data)
+static void floppy_shutdown(struct work_struct *arg)
{
unsigned long flags;
/* wait_for_completion also schedules reset if needed. */
return fd_wait_for_completion(DRS->select_date + DP->select_delay,
- (timeout_fn)function);
+ (work_func_t)function);
}
static void floppy_ready(void)
spin_lock_irq(&floppy_lock);
pending = set_next_request();
spin_unlock_irq(&floppy_lock);
-
if (!pending) {
do_floppy = NULL;
unlock_fdc();
current_req->cmd_flags))
return;
- if (test_bit(0, &fdc_busy)) {
+ if (test_and_set_bit(0, &fdc_busy)) {
/* fdc busy, this new request will be treated when the
current one is done */
is_alive(__func__, "old request running");
return;
}
- lock_fdc(MAXTIMEOUT, false);
+ command_status = FD_COMMAND_NONE;
+ __reschedule_timeout(MAXTIMEOUT, "fd_request");
+ set_fdc(0);
process_fd_request();
is_alive(__func__, "");
}
mutex_lock(&floppy_mutex);
mutex_lock(&open_lock);
- if (UDRS->fd_ref < 0)
- UDRS->fd_ref = 0;
- else if (!UDRS->fd_ref--) {
+ if (!UDRS->fd_ref--) {
DPRINT("floppy_release with fd_ref == 0");
UDRS->fd_ref = 0;
}
set_bit(FD_VERIFY_BIT, &UDRS->flags);
}
- if (UDRS->fd_ref == -1 || (UDRS->fd_ref && (mode & FMODE_EXCL)))
- goto out2;
-
- if (mode & FMODE_EXCL)
- UDRS->fd_ref = -1;
- else
- UDRS->fd_ref++;
+ UDRS->fd_ref++;
opened_bdev[drive] = bdev;
mutex_unlock(&floppy_mutex);
return 0;
out:
- if (UDRS->fd_ref < 0)
- UDRS->fd_ref = 0;
- else
- UDRS->fd_ref--;
+ UDRS->fd_ref--;
+
if (!UDRS->fd_ref)
opened_bdev[drive] = NULL;
out2:
goto out_put_disk;
}
+ floppy_wq = alloc_ordered_workqueue("floppy", 0);
+ if (!floppy_wq) {
+ err = -ENOMEM;
+ goto out_put_disk;
+ }
+
disks[dr]->queue = blk_init_queue(do_fd_request, &floppy_lock);
if (!disks[dr]->queue) {
err = -ENOMEM;
- goto out_put_disk;
+ goto out_destroy_workq;
}
blk_queue_max_hw_sectors(disks[dr]->queue, 64);
use_virtual_dma = can_use_virtual_dma & 1;
fdc_state[0].address = FDC1;
if (fdc_state[0].address == -1) {
- del_timer_sync(&fd_timeout);
+ cancel_delayed_work(&fd_timeout);
err = -ENODEV;
goto out_unreg_region;
}
fdc = 0; /* reset fdc in case of unexpected interrupt */
err = floppy_grab_irq_and_dma();
if (err) {
- del_timer_sync(&fd_timeout);
+ cancel_delayed_work(&fd_timeout);
err = -EBUSY;
goto out_unreg_region;
}
user_reset_fdc(-1, FD_RESET_ALWAYS, false);
}
fdc = 0;
- del_timer_sync(&fd_timeout);
+ cancel_delayed_work(&fd_timeout);
current_drive = 0;
initialized = true;
if (have_no_fdc) {
DPRINT("no floppy controllers found\n");
err = have_no_fdc;
- goto out_flush_work;
+ goto out_release_dma;
}
for (drive = 0; drive < N_DRIVE; drive++) {
err = platform_device_register(&floppy_device[drive]);
if (err)
- goto out_flush_work;
+ goto out_release_dma;
err = device_create_file(&floppy_device[drive].dev,
&dev_attr_cmos);
out_unreg_platform_dev:
platform_device_unregister(&floppy_device[drive]);
-out_flush_work:
- flush_work_sync(&floppy_work);
+out_release_dma:
if (atomic_read(&usage_count))
floppy_release_irq_and_dma();
out_unreg_region:
blk_unregister_region(MKDEV(FLOPPY_MAJOR, 0), 256);
platform_driver_unregister(&floppy_driver);
+out_destroy_workq:
+ destroy_workqueue(floppy_wq);
out_unreg_blkdev:
unregister_blkdev(FLOPPY_MAJOR, "fd");
out_put_disk:
* We might have scheduled a free_irq(), wait it to
* drain first:
*/
- flush_work_sync(&floppy_work);
+ flush_workqueue(floppy_wq);
if (fd_request_irq()) {
DPRINT("Unable to grab IRQ%d for the floppy driver\n",
pr_info("motor off timer %d still active\n", drive);
#endif
- if (timer_pending(&fd_timeout))
+ if (delayed_work_pending(&fd_timeout))
pr_info("floppy timer still active:%s\n", timeout_message);
- if (timer_pending(&fd_timer))
+ if (delayed_work_pending(&fd_timer))
pr_info("auxiliary floppy timer still active\n");
if (work_pending(&floppy_work))
pr_info("work still pending\n");
put_disk(disks[drive]);
}
- del_timer_sync(&fd_timeout);
- del_timer_sync(&fd_timer);
+ cancel_delayed_work_sync(&fd_timeout);
+ cancel_delayed_work_sync(&fd_timer);
+ destroy_workqueue(floppy_wq);
if (atomic_read(&usage_count))
floppy_release_irq_and_dma();
*/
static inline void mtip_issue_ncq_command(struct mtip_port *port, int tag)
{
- unsigned long flags = 0;
-
atomic_set(&port->commands[tag].active, 1);
- spin_lock_irqsave(&port->cmd_issue_lock, flags);
+ spin_lock(&port->cmd_issue_lock);
writel((1 << MTIP_TAG_BIT(tag)),
port->s_active[MTIP_TAG_INDEX(tag)]);
writel((1 << MTIP_TAG_BIT(tag)),
port->cmd_issue[MTIP_TAG_INDEX(tag)]);
- spin_unlock_irqrestore(&port->cmd_issue_lock, flags);
+ spin_unlock(&port->cmd_issue_lock);
/* Set the command's timeout value.*/
port->commands[tag].comp_time = jiffies + msecs_to_jiffies(
writel(0xFFFFFFFF, port->completed[i]);
/* Clear any pending interrupts for this port */
- writel(readl(port->dd->mmio + PORT_IRQ_STAT),
- port->dd->mmio + PORT_IRQ_STAT);
+ writel(readl(port->mmio + PORT_IRQ_STAT), port->mmio + PORT_IRQ_STAT);
/* Clear any pending interrupts on the HBA. */
writel(readl(port->dd->mmio + HOST_IRQ_STAT),
/* Stop the timer to prevent command timeouts. */
del_timer(&port->cmd_timer);
+ set_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags);
+
+ if (test_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags) &&
+ test_bit(MTIP_TAG_INTERNAL, port->allocated)) {
+ cmd = &port->commands[MTIP_TAG_INTERNAL];
+ dbg_printk(MTIP_DRV_NAME " TFE for the internal command\n");
+
+ atomic_inc(&cmd->active); /* active > 1 indicates error */
+ if (cmd->comp_data && cmd->comp_func) {
+ cmd->comp_func(port, MTIP_TAG_INTERNAL,
+ cmd->comp_data, PORT_IRQ_TF_ERR);
+ }
+ goto handle_tfe_exit;
+ }
/* clear the tag accumulator */
memset(tagaccum, 0, SLOTBITS_IN_LONGS * sizeof(long));
- /* Set eh_active */
- set_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags);
-
/* Loop through all the groups */
for (group = 0; group < dd->slot_groups; group++) {
completed = readl(port->completed[group]);
}
print_tags(dd, "reissued (TFE)", tagaccum, cmd_cnt);
+handle_tfe_exit:
/* clear eh_active */
clear_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags);
wake_up_interruptible(&port->svc_wait);
/* walk all bits in all slot groups */
for (group = 0; group < dd->slot_groups; group++) {
completed = readl(port->completed[group]);
+ if (!completed)
+ continue;
/* clear completed status register in the hardware.*/
writel(completed, port->completed[group]);
}
rv = -EAGAIN;
}
-
- if (readl(port->cmd_issue[MTIP_TAG_INTERNAL])
- & (1 << MTIP_TAG_INTERNAL)) {
- dev_warn(&port->dd->pdev->dev,
- "Retiring internal command but CI is 1.\n");
- if (test_bit(MTIP_DDF_REMOVE_PENDING_BIT,
- &port->dd->dd_flag)) {
- hba_reset_nosleep(port->dd);
- rv = -ENXIO;
- } else {
- mtip_restart_port(port);
- rv = -EAGAIN;
- }
- goto exec_ic_exit;
- }
-
} else {
/* Spin for <timeout> checking if command still outstanding */
timeout = jiffies + msecs_to_jiffies(timeout);
rv = -ENXIO;
goto exec_ic_exit;
}
+ if (readl(port->mmio + PORT_IRQ_STAT) & PORT_IRQ_ERR) {
+ atomic_inc(&int_cmd->active); /* error */
+ break;
+ }
}
+ }
- if (readl(port->cmd_issue[MTIP_TAG_INTERNAL])
+ if (atomic_read(&int_cmd->active) > 1) {
+ dev_err(&port->dd->pdev->dev,
+ "Internal command [%02X] failed\n", fis->command);
+ rv = -EIO;
+ }
+ if (readl(port->cmd_issue[MTIP_TAG_INTERNAL])
& (1 << MTIP_TAG_INTERNAL)) {
- dev_err(&port->dd->pdev->dev,
- "Internal command did not complete [atomic]\n");
+ rv = -ENXIO;
+ if (!test_bit(MTIP_DDF_REMOVE_PENDING_BIT,
+ &port->dd->dd_flag)) {
+ mtip_restart_port(port);
rv = -EAGAIN;
- if (test_bit(MTIP_DDF_REMOVE_PENDING_BIT,
- &port->dd->dd_flag)) {
- hba_reset_nosleep(port->dd);
- rv = -ENXIO;
- } else {
- mtip_restart_port(port);
- rv = -EAGAIN;
- }
}
}
exec_ic_exit:
void __user *user_buffer)
{
struct host_to_dev_fis fis;
- struct host_to_dev_fis *reply = (port->rxfis + RX_FIS_D2H_REG);
+ struct host_to_dev_fis *reply;
+ u8 *buf = NULL;
+ dma_addr_t dma_addr = 0;
+ int rv = 0, xfer_sz = command[3];
+
+ if (xfer_sz) {
+ if (user_buffer)
+ return -EFAULT;
+
+ buf = dmam_alloc_coherent(&port->dd->pdev->dev,
+ ATA_SECT_SIZE * xfer_sz,
+ &dma_addr,
+ GFP_KERNEL);
+ if (!buf) {
+ dev_err(&port->dd->pdev->dev,
+ "Memory allocation failed (%d bytes)\n",
+ ATA_SECT_SIZE * xfer_sz);
+ return -ENOMEM;
+ }
+ memset(buf, 0, ATA_SECT_SIZE * xfer_sz);
+ }
/* Build the FIS. */
memset(&fis, 0, sizeof(struct host_to_dev_fis));
- fis.type = 0x27;
- fis.opts = 1 << 7;
- fis.command = command[0];
+ fis.type = 0x27;
+ fis.opts = 1 << 7;
+ fis.command = command[0];
fis.features = command[2];
fis.sect_count = command[3];
if (fis.command == ATA_CMD_SMART) {
fis.cyl_hi = 0xC2;
}
+ if (xfer_sz)
+ reply = (port->rxfis + RX_FIS_PIO_SETUP);
+ else
+ reply = (port->rxfis + RX_FIS_D2H_REG);
+
dbg_printk(MTIP_DRV_NAME
" %s: User Command: cmd %x, sect %x, "
"feat %x, sectcnt %x\n",
command[2],
command[3]);
- memset(port->sector_buffer, 0x00, ATA_SECT_SIZE);
-
/* Execute the command. */
if (mtip_exec_internal_command(port,
&fis,
5,
- port->sector_buffer_dma,
- (command[3] != 0) ? ATA_SECT_SIZE : 0,
+ (xfer_sz ? dma_addr : 0),
+ (xfer_sz ? ATA_SECT_SIZE * xfer_sz : 0),
0,
GFP_KERNEL,
MTIP_IOCTL_COMMAND_TIMEOUT_MS)
< 0) {
- return -1;
+ rv = -EFAULT;
+ goto exit_drive_command;
}
/* Collect the completion status. */
command[0] = reply->command; /* Status*/
command[1] = reply->features; /* Error*/
- command[2] = command[3];
+ command[2] = reply->sect_count;
dbg_printk(MTIP_DRV_NAME
" %s: Completion Status: stat %x, "
- "err %x, cmd %x\n",
+ "err %x, nsect %x\n",
__func__,
command[0],
command[1],
command[2]);
- if (user_buffer && command[3]) {
+ if (xfer_sz) {
if (copy_to_user(user_buffer,
- port->sector_buffer,
+ buf,
ATA_SECT_SIZE * command[3])) {
- return -EFAULT;
+ rv = -EFAULT;
+ goto exit_drive_command;
}
}
-
- return 0;
+exit_drive_command:
+ if (buf)
+ dmam_free_coherent(&port->dd->pdev->dev,
+ ATA_SECT_SIZE * xfer_sz, buf, dma_addr);
+ return rv;
}
/*
return rv;
}
+static void mtip_set_timeout(struct host_to_dev_fis *fis, unsigned int *timeout)
+{
+ switch (fis->command) {
+ case ATA_CMD_DOWNLOAD_MICRO:
+ *timeout = 120000; /* 2 minutes */
+ break;
+ case ATA_CMD_SEC_ERASE_UNIT:
+ case 0xFC:
+ *timeout = 240000; /* 4 minutes */
+ break;
+ case ATA_CMD_STANDBYNOW1:
+ *timeout = 10000; /* 10 seconds */
+ break;
+ case 0xF7:
+ case 0xFA:
+ *timeout = 60000; /* 60 seconds */
+ break;
+ case ATA_CMD_SMART:
+ *timeout = 15000; /* 15 seconds */
+ break;
+ default:
+ *timeout = MTIP_IOCTL_COMMAND_TIMEOUT_MS;
+ break;
+ }
+}
+
/*
* Executes a taskfile
* See ide_taskfile_ioctl() for derivation
unsigned int taskin = 0;
unsigned int taskout = 0;
u8 nsect = 0;
- unsigned int timeout = MTIP_IOCTL_COMMAND_TIMEOUT_MS;
+ unsigned int timeout;
unsigned int force_single_sector;
unsigned int transfer_size;
unsigned long task_file_data;
fis.lba_hi,
fis.device);
- switch (fis.command) {
- case ATA_CMD_DOWNLOAD_MICRO:
- /* Change timeout for Download Microcode to 2 minutes */
- timeout = 120000;
- break;
- case ATA_CMD_SEC_ERASE_UNIT:
- /* Change timeout for Security Erase Unit to 4 minutes.*/
- timeout = 240000;
- break;
- case ATA_CMD_STANDBYNOW1:
- /* Change timeout for standby immediate to 10 seconds.*/
- timeout = 10000;
- break;
- case 0xF7:
- case 0xFA:
- /* Change timeout for vendor unique command to 10 secs */
- timeout = 10000;
- break;
- case ATA_CMD_SMART:
- /* Change timeout for vendor unique command to 15 secs */
- timeout = 15000;
- break;
- default:
- timeout = MTIP_IOCTL_COMMAND_TIMEOUT_MS;
- break;
- }
+ mtip_set_timeout(&fis, &timeout);
/* Determine the correct transfer size.*/
if (force_single_sector)
{
switch (cmd) {
case HDIO_GET_IDENTITY:
- if (mtip_get_identify(dd->port, (void __user *) arg) < 0) {
- dev_warn(&dd->pdev->dev,
- "Unable to read identity\n");
- return -EIO;
- }
-
+ {
+ if (copy_to_user((void __user *)arg, dd->port->identify,
+ sizeof(u16) * ATA_ID_WORDS))
+ return -EFAULT;
break;
+ }
case HDIO_DRIVE_CMD:
{
u8 drive_command[4];
int size = 0;
int n;
- size += sprintf(&buf[size], "S ACTive:\n");
+ size += sprintf(&buf[size], "Hardware\n--------\n");
+ size += sprintf(&buf[size], "S ACTive : [ 0x");
- for (n = 0; n < dd->slot_groups; n++)
- size += sprintf(&buf[size], "0x%08x\n",
+ for (n = dd->slot_groups-1; n >= 0; n--)
+ size += sprintf(&buf[size], "%08X ",
readl(dd->port->s_active[n]));
- size += sprintf(&buf[size], "Command Issue:\n");
+ size += sprintf(&buf[size], "]\n");
+ size += sprintf(&buf[size], "Command Issue : [ 0x");
- for (n = 0; n < dd->slot_groups; n++)
- size += sprintf(&buf[size], "0x%08x\n",
+ for (n = dd->slot_groups-1; n >= 0; n--)
+ size += sprintf(&buf[size], "%08X ",
readl(dd->port->cmd_issue[n]));
- size += sprintf(&buf[size], "Allocated:\n");
+ size += sprintf(&buf[size], "]\n");
+ size += sprintf(&buf[size], "Completed : [ 0x");
+
+ for (n = dd->slot_groups-1; n >= 0; n--)
+ size += sprintf(&buf[size], "%08X ",
+ readl(dd->port->completed[n]));
+
+ size += sprintf(&buf[size], "]\n");
+ size += sprintf(&buf[size], "PORT IRQ STAT : [ 0x%08X ]\n",
+ readl(dd->port->mmio + PORT_IRQ_STAT));
+ size += sprintf(&buf[size], "HOST IRQ STAT : [ 0x%08X ]\n",
+ readl(dd->mmio + HOST_IRQ_STAT));
+ size += sprintf(&buf[size], "\n");
- for (n = 0; n < dd->slot_groups; n++) {
+ size += sprintf(&buf[size], "Local\n-----\n");
+ size += sprintf(&buf[size], "Allocated : [ 0x");
+
+ for (n = dd->slot_groups-1; n >= 0; n--) {
if (sizeof(long) > sizeof(u32))
group_allocated =
dd->port->allocated[n/2] >> (32*(n&1));
else
group_allocated = dd->port->allocated[n];
- size += sprintf(&buf[size], "0x%08x\n",
- group_allocated);
+ size += sprintf(&buf[size], "%08X ", group_allocated);
}
+ size += sprintf(&buf[size], "]\n");
- size += sprintf(&buf[size], "Completed:\n");
-
- for (n = 0; n < dd->slot_groups; n++)
- size += sprintf(&buf[size], "0x%08x\n",
- readl(dd->port->completed[n]));
+ size += sprintf(&buf[size], "Commands in Q: [ 0x");
- size += sprintf(&buf[size], "PORT IRQ STAT : 0x%08x\n",
- readl(dd->port->mmio + PORT_IRQ_STAT));
- size += sprintf(&buf[size], "HOST IRQ STAT : 0x%08x\n",
- readl(dd->mmio + HOST_IRQ_STAT));
+ for (n = dd->slot_groups-1; n >= 0; n--) {
+ if (sizeof(long) > sizeof(u32))
+ group_allocated =
+ dd->port->cmds_to_issue[n/2] >> (32*(n&1));
+ else
+ group_allocated = dd->port->cmds_to_issue[n];
+ size += sprintf(&buf[size], "%08X ", group_allocated);
+ }
+ size += sprintf(&buf[size], "]\n");
return size;
}
return size;
}
+static ssize_t mtip_hw_show_flags(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct driver_data *dd = dev_to_disk(dev)->private_data;
+ int size = 0;
+
+ size += sprintf(&buf[size], "Flag in port struct : [ %08lX ]\n",
+ dd->port->flags);
+ size += sprintf(&buf[size], "Flag in dd struct : [ %08lX ]\n",
+ dd->dd_flag);
+
+ return size;
+}
+
static DEVICE_ATTR(registers, S_IRUGO, mtip_hw_show_registers, NULL);
static DEVICE_ATTR(status, S_IRUGO, mtip_hw_show_status, NULL);
+static DEVICE_ATTR(flags, S_IRUGO, mtip_hw_show_flags, NULL);
/*
* Create the sysfs related attributes.
if (sysfs_create_file(kobj, &dev_attr_status.attr))
dev_warn(&dd->pdev->dev,
"Error creating 'status' sysfs entry\n");
+ if (sysfs_create_file(kobj, &dev_attr_flags.attr))
+ dev_warn(&dd->pdev->dev,
+ "Error creating 'flags' sysfs entry\n");
return 0;
}
sysfs_remove_file(kobj, &dev_attr_registers.attr);
sysfs_remove_file(kobj, &dev_attr_status.attr);
+ sysfs_remove_file(kobj, &dev_attr_flags.attr);
return 0;
}
set_bit(QUEUE_FLAG_NONROT, &dd->queue->queue_flags);
blk_queue_max_segments(dd->queue, MTIP_MAX_SG);
blk_queue_physical_block_size(dd->queue, 4096);
+ blk_queue_max_hw_sectors(dd->queue, 0xffff);
+ blk_queue_max_segment_size(dd->queue, 0x400000);
blk_queue_io_min(dd->queue, 4096);
+
/*
* write back cache is not supported in the device. FUA depends on
* write back cache support, hence setting flush support to zero.
#define __force_bit2int (unsigned int __force)
-/* below are bit numbers in 'flags' defined in mtip_port */
-#define MTIP_PF_IC_ACTIVE_BIT 0 /* pio/ioctl */
-#define MTIP_PF_EH_ACTIVE_BIT 1 /* error handling */
-#define MTIP_PF_SE_ACTIVE_BIT 2 /* secure erase */
-#define MTIP_PF_DM_ACTIVE_BIT 3 /* download microcde */
-#define MTIP_PF_PAUSE_IO ((1 << MTIP_PF_IC_ACTIVE_BIT) | \
+enum {
+ /* below are bit numbers in 'flags' defined in mtip_port */
+ MTIP_PF_IC_ACTIVE_BIT = 0, /* pio/ioctl */
+ MTIP_PF_EH_ACTIVE_BIT = 1, /* error handling */
+ MTIP_PF_SE_ACTIVE_BIT = 2, /* secure erase */
+ MTIP_PF_DM_ACTIVE_BIT = 3, /* download microcde */
+ MTIP_PF_PAUSE_IO = ((1 << MTIP_PF_IC_ACTIVE_BIT) | \
(1 << MTIP_PF_EH_ACTIVE_BIT) | \
(1 << MTIP_PF_SE_ACTIVE_BIT) | \
- (1 << MTIP_PF_DM_ACTIVE_BIT))
-
-#define MTIP_PF_SVC_THD_ACTIVE_BIT 4
-#define MTIP_PF_ISSUE_CMDS_BIT 5
-#define MTIP_PF_REBUILD_BIT 6
-#define MTIP_PF_SVC_THD_STOP_BIT 8
-
-/* below are bit numbers in 'dd_flag' defined in driver_data */
-#define MTIP_DDF_REMOVE_PENDING_BIT 1
-#define MTIP_DDF_OVER_TEMP_BIT 2
-#define MTIP_DDF_WRITE_PROTECT_BIT 3
-#define MTIP_DDF_STOP_IO ((1 << MTIP_DDF_REMOVE_PENDING_BIT) | \
+ (1 << MTIP_PF_DM_ACTIVE_BIT)),
+
+ MTIP_PF_SVC_THD_ACTIVE_BIT = 4,
+ MTIP_PF_ISSUE_CMDS_BIT = 5,
+ MTIP_PF_REBUILD_BIT = 6,
+ MTIP_PF_SVC_THD_STOP_BIT = 8,
+
+ /* below are bit numbers in 'dd_flag' defined in driver_data */
+ MTIP_DDF_REMOVE_PENDING_BIT = 1,
+ MTIP_DDF_OVER_TEMP_BIT = 2,
+ MTIP_DDF_WRITE_PROTECT_BIT = 3,
+ MTIP_DDF_STOP_IO = ((1 << MTIP_DDF_REMOVE_PENDING_BIT) | \
(1 << MTIP_DDF_OVER_TEMP_BIT) | \
- (1 << MTIP_DDF_WRITE_PROTECT_BIT))
+ (1 << MTIP_DDF_WRITE_PROTECT_BIT)),
-#define MTIP_DDF_CLEANUP_BIT 5
-#define MTIP_DDF_RESUME_BIT 6
-#define MTIP_DDF_INIT_DONE_BIT 7
-#define MTIP_DDF_REBUILD_FAILED_BIT 8
+ MTIP_DDF_CLEANUP_BIT = 5,
+ MTIP_DDF_RESUME_BIT = 6,
+ MTIP_DDF_INIT_DONE_BIT = 7,
+ MTIP_DDF_REBUILD_FAILED_BIT = 8,
+};
__packed struct smart_attr{
u8 attr_id;
struct rbd_snap {
struct device dev;
const char *name;
- size_t size;
+ u64 size;
struct list_head node;
u64 id;
};
/* protects updating the header */
struct rw_semaphore header_rwsem;
char snap_name[RBD_MAX_SNAP_NAME_LEN];
- u32 cur_snap; /* index+1 of current snapshot within snap context
- 0 - for the head */
+ u64 snap_id; /* current snapshot id */
int read_only;
struct list_head node;
put_device(&rbd_dev->dev);
}
-static int __rbd_update_snaps(struct rbd_device *rbd_dev);
+static int __rbd_refresh_header(struct rbd_device *rbd_dev);
static int rbd_open(struct block_device *bdev, fmode_t mode)
{
struct rbd_client *rbdc = container_of(kref, struct rbd_client, kref);
dout("rbd_release_client %p\n", rbdc);
+ spin_lock(&rbd_client_list_lock);
list_del(&rbdc->node);
+ spin_unlock(&rbd_client_list_lock);
ceph_destroy_client(rbdc->client);
kfree(rbdc->rbd_opts);
*/
static void rbd_put_client(struct rbd_device *rbd_dev)
{
- spin_lock(&rbd_client_list_lock);
kref_put(&rbd_dev->rbd_client->kref, rbd_client_release);
- spin_unlock(&rbd_client_list_lock);
rbd_dev->rbd_client = NULL;
}
*/
static int rbd_header_from_disk(struct rbd_image_header *header,
struct rbd_image_header_ondisk *ondisk,
- int allocated_snaps,
+ u32 allocated_snaps,
gfp_t gfp_flags)
{
- int i;
- u32 snap_count;
+ u32 i, snap_count;
if (memcmp(ondisk, RBD_HEADER_TEXT, sizeof(RBD_HEADER_TEXT)))
return -ENXIO;
snap_count = le32_to_cpu(ondisk->snap_count);
+ if (snap_count > (UINT_MAX - sizeof(struct ceph_snap_context))
+ / sizeof (*ondisk))
+ return -EINVAL;
header->snapc = kmalloc(sizeof(struct ceph_snap_context) +
snap_count * sizeof (*ondisk),
gfp_flags);
header->snap_names_len = le64_to_cpu(ondisk->snap_names_len);
if (snap_count) {
header->snap_names = kmalloc(header->snap_names_len,
- GFP_KERNEL);
+ gfp_flags);
if (!header->snap_names)
goto err_snapc;
header->snap_sizes = kmalloc(snap_count * sizeof(u64),
- GFP_KERNEL);
+ gfp_flags);
if (!header->snap_sizes)
goto err_names;
} else {
return -ENOMEM;
}
-static int snap_index(struct rbd_image_header *header, int snap_num)
-{
- return header->total_snaps - snap_num;
-}
-
-static u64 cur_snap_id(struct rbd_device *rbd_dev)
-{
- struct rbd_image_header *header = &rbd_dev->header;
-
- if (!rbd_dev->cur_snap)
- return 0;
-
- return header->snapc->snaps[snap_index(header, rbd_dev->cur_snap)];
-}
-
static int snap_by_name(struct rbd_image_header *header, const char *snap_name,
u64 *seq, u64 *size)
{
snapc->seq = header->snap_seq;
else
snapc->seq = 0;
- dev->cur_snap = 0;
+ dev->snap_id = CEPH_NOSNAP;
dev->read_only = 0;
if (size)
*size = header->image_size;
ret = snap_by_name(header, dev->snap_name, &snapc->seq, size);
if (ret < 0)
goto done;
-
- dev->cur_snap = header->total_snaps - ret;
+ dev->snap_id = snapc->seq;
dev->read_only = 1;
}
layout->fl_stripe_unit = cpu_to_le32(1 << RBD_MAX_OBJ_ORDER);
layout->fl_stripe_count = cpu_to_le32(1);
layout->fl_object_size = cpu_to_le32(1 << RBD_MAX_OBJ_ORDER);
- layout->fl_pg_preferred = cpu_to_le32(-1);
layout->fl_pg_pool = cpu_to_le32(dev->poolid);
ceph_calc_raw_layout(osdc, layout, snapid, ofs, &len, &bno,
req, ops);
int coll_index)
{
return rbd_do_op(rq, rbd_dev, NULL,
- (snapid ? snapid : CEPH_NOSNAP),
+ snapid,
CEPH_OSD_OP_READ,
CEPH_OSD_FLAG_READ,
2,
u64 *ver)
{
return rbd_req_sync_op(dev, NULL,
- (snapid ? snapid : CEPH_NOSNAP),
+ snapid,
CEPH_OSD_OP_READ,
CEPH_OSD_FLAG_READ,
NULL,
dout("rbd_watch_cb %s notify_id=%lld opcode=%d\n", dev->obj_md_name,
notify_id, (int)opcode);
mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
- rc = __rbd_update_snaps(dev);
+ rc = __rbd_refresh_header(dev);
mutex_unlock(&ctl_mutex);
if (rc)
pr_warning(RBD_DRV_NAME "%d got notification but failed to "
coll, cur_seg);
else
rbd_req_read(rq, rbd_dev,
- cur_snap_id(rbd_dev),
+ rbd_dev->snap_id,
ofs,
op_size, bio,
coll, cur_seg);
{
ssize_t rc;
struct rbd_image_header_ondisk *dh;
- int snap_count = 0;
+ u32 snap_count = 0;
u64 ver;
size_t len;
struct ceph_mon_client *monc;
/* we should create a snapshot only if we're pointing at the head */
- if (dev->cur_snap)
+ if (dev->snap_id != CEPH_NOSNAP)
return -EINVAL;
monc = &dev->rbd_client->client->monc;
if (ret < 0)
return ret;
- dev->header.snapc->seq = new_snapid;
+ down_write(&dev->header_rwsem);
+ dev->header.snapc->seq = new_snapid;
+ up_write(&dev->header_rwsem);
return 0;
bad:
/*
* only read the first part of the ondisk header, without the snaps info
*/
-static int __rbd_update_snaps(struct rbd_device *rbd_dev)
+static int __rbd_refresh_header(struct rbd_device *rbd_dev)
{
int ret;
struct rbd_image_header h;
mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
- rc = __rbd_update_snaps(rbd_dev);
+ rc = __rbd_refresh_header(rbd_dev);
if (rc < 0)
ret = rc;
{
struct rbd_snap *snap = container_of(dev, struct rbd_snap, dev);
- return sprintf(buf, "%zd\n", snap->size);
+ return sprintf(buf, "%llu\n", (unsigned long long)snap->size);
}
static ssize_t rbd_snap_id_show(struct device *dev,
{
struct rbd_snap *snap = container_of(dev, struct rbd_snap, dev);
- return sprintf(buf, "%llu\n", (unsigned long long) snap->id);
+ return sprintf(buf, "%llu\n", (unsigned long long)snap->id);
}
static DEVICE_ATTR(snap_size, S_IRUGO, rbd_snap_size_show, NULL);
rbd_dev->header.obj_version);
if (ret == -ERANGE) {
mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
- rc = __rbd_update_snaps(rbd_dev);
+ rc = __rbd_refresh_header(rbd_dev);
mutex_unlock(&ctl_mutex);
if (rc < 0)
return rc;
if (ret < 0)
goto err_unlock;
- ret = __rbd_update_snaps(rbd_dev);
+ ret = __rbd_refresh_header(rbd_dev);
if (ret < 0)
goto err_unlock;
return 0;
}
+static char *encode_disk_name(char *ptr, unsigned int n)
+{
+ if (n >= 26)
+ ptr = encode_disk_name(ptr, n / 26 - 1);
+ *ptr = 'a' + n % 26;
+ return ptr + 1;
+}
+
static int xlvbd_alloc_gendisk(blkif_sector_t capacity,
struct blkfront_info *info,
u16 vdisk_info, u16 sector_size)
unsigned int offset;
int minor;
int nr_parts;
+ char *ptr;
BUG_ON(info->gd != NULL);
BUG_ON(info->rq != NULL);
"emulated IDE disks,\n\t choose an xvd device name"
"from xvde on\n", info->vdevice);
}
- err = -ENODEV;
+ if (minor >> MINORBITS) {
+ pr_warn("blkfront: %#x's minor (%#x) out of range; ignoring\n",
+ info->vdevice, minor);
+ return -ENODEV;
+ }
if ((minor % nr_parts) == 0)
nr_minors = nr_parts;
if (gd == NULL)
goto release;
- if (nr_minors > 1) {
- if (offset < 26)
- sprintf(gd->disk_name, "%s%c", DEV_NAME, 'a' + offset);
- else
- sprintf(gd->disk_name, "%s%c%c", DEV_NAME,
- 'a' + ((offset / 26)-1), 'a' + (offset % 26));
- } else {
- if (offset < 26)
- sprintf(gd->disk_name, "%s%c%d", DEV_NAME,
- 'a' + offset,
- minor & (nr_parts - 1));
- else
- sprintf(gd->disk_name, "%s%c%c%d", DEV_NAME,
- 'a' + ((offset / 26) - 1),
- 'a' + (offset % 26),
- minor & (nr_parts - 1));
- }
+ strcpy(gd->disk_name, DEV_NAME);
+ ptr = encode_disk_name(gd->disk_name + sizeof(DEV_NAME) - 1, offset);
+ BUG_ON(ptr >= gd->disk_name + DISK_NAME_LEN);
+ if (nr_minors > 1)
+ *ptr = 0;
+ else
+ snprintf(ptr, gd->disk_name + DISK_NAME_LEN - ptr,
+ "%d", minor & (nr_parts - 1));
gd->major = XENVBD_MAJOR;
gd->first_minor = minor;
static void __exit xlblk_exit(void)
{
- return xenbus_unregister_driver(&blkfront_driver);
+ xenbus_unregister_driver(&blkfront_driver);
+ unregister_blkdev(XENVBD_MAJOR, DEV_NAME);
+ kfree(minors);
}
module_exit(xlblk_exit);
input_addr_to_dram_addr(mci, input_addr));
}
-/*
- * Find the minimum and maximum InputAddr values that map to the given @csrow.
- * Pass back these values in *input_addr_min and *input_addr_max.
- */
-static void find_csrow_limits(struct mem_ctl_info *mci, int csrow,
- u64 *input_addr_min, u64 *input_addr_max)
-{
- struct amd64_pvt *pvt;
- u64 base, mask;
-
- pvt = mci->pvt_info;
- BUG_ON((csrow < 0) || (csrow >= pvt->csels[0].b_cnt));
-
- get_cs_base_and_mask(pvt, csrow, 0, &base, &mask);
-
- *input_addr_min = base & ~mask;
- *input_addr_max = base | mask;
-}
-
/* Map the Error address to a PAGE and PAGE OFFSET. */
static inline void error_address_to_page_and_offset(u64 error_address,
u32 *page, u32 *offset)
int channel, csrow;
u32 page, offset;
+ error_address_to_page_and_offset(sys_addr, &page, &offset);
+
+ /*
+ * Find out which node the error address belongs to. This may be
+ * different from the node that detected the error.
+ */
+ src_mci = find_mc_by_sys_addr(mci, sys_addr);
+ if (!src_mci) {
+ amd64_mc_err(mci, "failed to map error addr 0x%lx to a node\n",
+ (unsigned long)sys_addr);
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ page, offset, syndrome,
+ -1, -1, -1,
+ EDAC_MOD_STR,
+ "failed to map error addr to a node",
+ NULL);
+ return;
+ }
+
+ /* Now map the sys_addr to a CSROW */
+ csrow = sys_addr_to_csrow(src_mci, sys_addr);
+ if (csrow < 0) {
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ page, offset, syndrome,
+ -1, -1, -1,
+ EDAC_MOD_STR,
+ "failed to map error addr to a csrow",
+ NULL);
+ return;
+ }
+
/* CHIPKILL enabled */
if (pvt->nbcfg & NBCFG_CHIPKILL) {
channel = get_channel_from_ecc_syndrome(mci, syndrome);
* 2 DIMMs is in error. So we need to ID 'both' of them
* as suspect.
*/
- amd64_mc_warn(mci, "unknown syndrome 0x%04x - possible "
- "error reporting race\n", syndrome);
- edac_mc_handle_ce_no_info(mci, EDAC_MOD_STR);
+ amd64_mc_warn(src_mci, "unknown syndrome 0x%04x - "
+ "possible error reporting race\n",
+ syndrome);
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ page, offset, syndrome,
+ csrow, -1, -1,
+ EDAC_MOD_STR,
+ "unknown syndrome - possible error reporting race",
+ NULL);
return;
}
} else {
channel = ((sys_addr & BIT(3)) != 0);
}
- /*
- * Find out which node the error address belongs to. This may be
- * different from the node that detected the error.
- */
- src_mci = find_mc_by_sys_addr(mci, sys_addr);
- if (!src_mci) {
- amd64_mc_err(mci, "failed to map error addr 0x%lx to a node\n",
- (unsigned long)sys_addr);
- edac_mc_handle_ce_no_info(mci, EDAC_MOD_STR);
- return;
- }
-
- /* Now map the sys_addr to a CSROW */
- csrow = sys_addr_to_csrow(src_mci, sys_addr);
- if (csrow < 0) {
- edac_mc_handle_ce_no_info(src_mci, EDAC_MOD_STR);
- } else {
- error_address_to_page_and_offset(sys_addr, &page, &offset);
-
- edac_mc_handle_ce(src_mci, page, offset, syndrome, csrow,
- channel, EDAC_MOD_STR);
- }
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, src_mci,
+ page, offset, syndrome,
+ csrow, channel, -1,
+ EDAC_MOD_STR, "", NULL);
}
static int ddr2_cs_size(unsigned i, bool dct_width)
u32 page, offset;
int nid, csrow, chan = 0;
+ error_address_to_page_and_offset(sys_addr, &page, &offset);
+
csrow = f1x_translate_sysaddr_to_cs(pvt, sys_addr, &nid, &chan);
if (csrow < 0) {
- edac_mc_handle_ce_no_info(mci, EDAC_MOD_STR);
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ page, offset, syndrome,
+ -1, -1, -1,
+ EDAC_MOD_STR,
+ "failed to map error addr to a csrow",
+ NULL);
return;
}
- error_address_to_page_and_offset(sys_addr, &page, &offset);
-
/*
* We need the syndromes for channel detection only when we're
* ganged. Otherwise @chan should already contain the channel at
if (dct_ganging_enabled(pvt))
chan = get_channel_from_ecc_syndrome(mci, syndrome);
- if (chan >= 0)
- edac_mc_handle_ce(mci, page, offset, syndrome, csrow, chan,
- EDAC_MOD_STR);
- else
- /*
- * Channel unknown, report all channels on this CSROW as failed.
- */
- for (chan = 0; chan < mci->csrows[csrow].nr_channels; chan++)
- edac_mc_handle_ce(mci, page, offset, syndrome,
- csrow, chan, EDAC_MOD_STR);
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ page, offset, syndrome,
+ csrow, chan, -1,
+ EDAC_MOD_STR, "", NULL);
}
/*
/* Ensure that the Error Address is VALID */
if (!(m->status & MCI_STATUS_ADDRV)) {
amd64_mc_err(mci, "HW has no ERROR_ADDRESS available\n");
- edac_mc_handle_ce_no_info(mci, EDAC_MOD_STR);
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ 0, 0, 0,
+ -1, -1, -1,
+ EDAC_MOD_STR,
+ "HW has no ERROR_ADDRESS available",
+ NULL);
return;
}
if (!(m->status & MCI_STATUS_ADDRV)) {
amd64_mc_err(mci, "HW has no ERROR_ADDRESS available\n");
- edac_mc_handle_ue_no_info(log_mci, EDAC_MOD_STR);
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ 0, 0, 0,
+ -1, -1, -1,
+ EDAC_MOD_STR,
+ "HW has no ERROR_ADDRESS available",
+ NULL);
return;
}
sys_addr = get_error_address(m);
+ error_address_to_page_and_offset(sys_addr, &page, &offset);
/*
* Find out which node the error address belongs to. This may be
if (!src_mci) {
amd64_mc_err(mci, "ERROR ADDRESS (0x%lx) NOT mapped to a MC\n",
(unsigned long)sys_addr);
- edac_mc_handle_ue_no_info(log_mci, EDAC_MOD_STR);
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ page, offset, 0,
+ -1, -1, -1,
+ EDAC_MOD_STR,
+ "ERROR ADDRESS NOT mapped to a MC", NULL);
return;
}
if (csrow < 0) {
amd64_mc_err(mci, "ERROR_ADDRESS (0x%lx) NOT mapped to CS\n",
(unsigned long)sys_addr);
- edac_mc_handle_ue_no_info(log_mci, EDAC_MOD_STR);
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ page, offset, 0,
+ -1, -1, -1,
+ EDAC_MOD_STR,
+ "ERROR ADDRESS NOT mapped to CS",
+ NULL);
} else {
- error_address_to_page_and_offset(sys_addr, &page, &offset);
- edac_mc_handle_ue(log_mci, page, offset, csrow, EDAC_MOD_STR);
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ page, offset, 0,
+ csrow, -1, -1,
+ EDAC_MOD_STR, "", NULL);
}
}
nr_pages = pvt->ops->dbam_to_cs(pvt, dct, cs_mode) << (20 - PAGE_SHIFT);
debugf0(" (csrow=%d) DBAM map index= %d\n", csrow_nr, cs_mode);
- debugf0(" nr_pages= %u channel-count = %d\n",
+ debugf0(" nr_pages/channel= %u channel-count = %d\n",
nr_pages, pvt->channel_count);
return nr_pages;
{
struct csrow_info *csrow;
struct amd64_pvt *pvt = mci->pvt_info;
- u64 input_addr_min, input_addr_max, sys_addr, base, mask;
+ u64 base, mask;
u32 val;
- int i, empty = 1;
+ int i, j, empty = 1;
+ enum mem_type mtype;
+ enum edac_type edac_mode;
+ int nr_pages = 0;
amd64_read_pci_cfg(pvt->F3, NBCFG, &val);
empty = 0;
if (csrow_enabled(i, 0, pvt))
- csrow->nr_pages = amd64_csrow_nr_pages(pvt, 0, i);
+ nr_pages = amd64_csrow_nr_pages(pvt, 0, i);
if (csrow_enabled(i, 1, pvt))
- csrow->nr_pages += amd64_csrow_nr_pages(pvt, 1, i);
- find_csrow_limits(mci, i, &input_addr_min, &input_addr_max);
- sys_addr = input_addr_to_sys_addr(mci, input_addr_min);
- csrow->first_page = (u32) (sys_addr >> PAGE_SHIFT);
- sys_addr = input_addr_to_sys_addr(mci, input_addr_max);
- csrow->last_page = (u32) (sys_addr >> PAGE_SHIFT);
+ nr_pages += amd64_csrow_nr_pages(pvt, 1, i);
get_cs_base_and_mask(pvt, i, 0, &base, &mask);
- csrow->page_mask = ~mask;
/* 8 bytes of resolution */
- csrow->mtype = amd64_determine_memory_type(pvt, i);
+ mtype = amd64_determine_memory_type(pvt, i);
debugf1(" for MC node %d csrow %d:\n", pvt->mc_node_id, i);
- debugf1(" input_addr_min: 0x%lx input_addr_max: 0x%lx\n",
- (unsigned long)input_addr_min,
- (unsigned long)input_addr_max);
- debugf1(" sys_addr: 0x%lx page_mask: 0x%lx\n",
- (unsigned long)sys_addr, csrow->page_mask);
- debugf1(" nr_pages: %u first_page: 0x%lx "
- "last_page: 0x%lx\n",
- (unsigned)csrow->nr_pages,
- csrow->first_page, csrow->last_page);
+ debugf1(" nr_pages: %u\n", nr_pages * pvt->channel_count);
/*
* determine whether CHIPKILL or JUST ECC or NO ECC is operating
*/
if (pvt->nbcfg & NBCFG_ECC_ENABLE)
- csrow->edac_mode =
- (pvt->nbcfg & NBCFG_CHIPKILL) ?
- EDAC_S4ECD4ED : EDAC_SECDED;
+ edac_mode = (pvt->nbcfg & NBCFG_CHIPKILL) ?
+ EDAC_S4ECD4ED : EDAC_SECDED;
else
- csrow->edac_mode = EDAC_NONE;
+ edac_mode = EDAC_NONE;
+
+ for (j = 0; j < pvt->channel_count; j++) {
+ csrow->channels[j].dimm->mtype = mtype;
+ csrow->channels[j].dimm->edac_mode = edac_mode;
+ csrow->channels[j].dimm->nr_pages = nr_pages;
+ }
}
return empty;
struct amd64_pvt *pvt = NULL;
struct amd64_family_type *fam_type = NULL;
struct mem_ctl_info *mci = NULL;
+ struct edac_mc_layer layers[2];
int err = 0, ret;
u8 nid = get_node_id(F2);
goto err_siblings;
ret = -ENOMEM;
- mci = edac_mc_alloc(0, pvt->csels[0].b_cnt, pvt->channel_count, nid);
+ layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
+ layers[0].size = pvt->csels[0].b_cnt;
+ layers[0].is_virt_csrow = true;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = pvt->channel_count;
+ layers[1].is_virt_csrow = false;
+ mci = edac_mc_alloc(nid, ARRAY_SIZE(layers), layers, 0);
if (!mci)
goto err_siblings;
edac_mc_chipset_printk(mci, level, "amd76x", fmt, ##arg)
#define AMD76X_NR_CSROWS 8
-#define AMD76X_NR_CHANS 1
#define AMD76X_NR_DIMMS 4
/* AMD 76x register addresses - device 0 function 0 - PCI bridge */
if (handle_errors) {
row = (info->ecc_mode_status >> 4) & 0xf;
- edac_mc_handle_ue(mci, mci->csrows[row].first_page, 0,
- row, mci->ctl_name);
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ mci->csrows[row].first_page, 0, 0,
+ row, 0, -1,
+ mci->ctl_name, "", NULL);
}
}
if (handle_errors) {
row = info->ecc_mode_status & 0xf;
- edac_mc_handle_ce(mci, mci->csrows[row].first_page, 0,
- 0, row, 0, mci->ctl_name);
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ mci->csrows[row].first_page, 0, 0,
+ row, 0, -1,
+ mci->ctl_name, "", NULL);
}
}
enum edac_type edac_mode)
{
struct csrow_info *csrow;
+ struct dimm_info *dimm;
u32 mba, mba_base, mba_mask, dms;
int index;
for (index = 0; index < mci->nr_csrows; index++) {
csrow = &mci->csrows[index];
+ dimm = csrow->channels[0].dimm;
/* find the DRAM Chip Select Base address and mask */
pci_read_config_dword(pdev,
mba_mask = ((mba & 0xff80) << 16) | 0x7fffffUL;
pci_read_config_dword(pdev, AMD76X_DRAM_MODE_STATUS, &dms);
csrow->first_page = mba_base >> PAGE_SHIFT;
- csrow->nr_pages = (mba_mask + 1) >> PAGE_SHIFT;
- csrow->last_page = csrow->first_page + csrow->nr_pages - 1;
+ dimm->nr_pages = (mba_mask + 1) >> PAGE_SHIFT;
+ csrow->last_page = csrow->first_page + dimm->nr_pages - 1;
csrow->page_mask = mba_mask >> PAGE_SHIFT;
- csrow->grain = csrow->nr_pages << PAGE_SHIFT;
- csrow->mtype = MEM_RDDR;
- csrow->dtype = ((dms >> index) & 0x1) ? DEV_X4 : DEV_UNKNOWN;
- csrow->edac_mode = edac_mode;
+ dimm->grain = dimm->nr_pages << PAGE_SHIFT;
+ dimm->mtype = MEM_RDDR;
+ dimm->dtype = ((dms >> index) & 0x1) ? DEV_X4 : DEV_UNKNOWN;
+ dimm->edac_mode = edac_mode;
}
}
EDAC_SECDED,
EDAC_SECDED
};
- struct mem_ctl_info *mci = NULL;
+ struct mem_ctl_info *mci;
+ struct edac_mc_layer layers[2];
u32 ems;
u32 ems_mode;
struct amd76x_error_info discard;
debugf0("%s()\n", __func__);
pci_read_config_dword(pdev, AMD76X_ECC_MODE_STATUS, &ems);
ems_mode = (ems >> 10) & 0x3;
- mci = edac_mc_alloc(0, AMD76X_NR_CSROWS, AMD76X_NR_CHANS, 0);
- if (mci == NULL) {
+ layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
+ layers[0].size = AMD76X_NR_CSROWS;
+ layers[0].is_virt_csrow = true;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = 1;
+ layers[1].is_virt_csrow = false;
+ mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, 0);
+
+ if (mci == NULL)
return -ENOMEM;
- }
debugf0("%s(): mci = %p\n", __func__, mci);
mci->dev = &pdev->dev;
syndrome = (ar & 0x000000001fe00000ul) >> 21;
/* TODO: Decoding of the error address */
- edac_mc_handle_ce(mci, csrow->first_page + pfn, offset,
- syndrome, 0, chan, "");
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ csrow->first_page + pfn, offset, syndrome,
+ 0, chan, -1, "", "", NULL);
}
static void cell_edac_count_ue(struct mem_ctl_info *mci, int chan, u64 ar)
offset = address & ~PAGE_MASK;
/* TODO: Decoding of the error address */
- edac_mc_handle_ue(mci, csrow->first_page + pfn, offset, 0, "");
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ csrow->first_page + pfn, offset, 0,
+ 0, chan, -1, "", "", NULL);
}
static void cell_edac_check(struct mem_ctl_info *mci)
static void __devinit cell_edac_init_csrows(struct mem_ctl_info *mci)
{
struct csrow_info *csrow = &mci->csrows[0];
+ struct dimm_info *dimm;
struct cell_edac_priv *priv = mci->pvt_info;
struct device_node *np;
+ int j;
+ u32 nr_pages;
for (np = NULL;
(np = of_find_node_by_name(np, "memory")) != NULL;) {
if (of_node_to_nid(np) != priv->node)
continue;
csrow->first_page = r.start >> PAGE_SHIFT;
- csrow->nr_pages = resource_size(&r) >> PAGE_SHIFT;
- csrow->last_page = csrow->first_page + csrow->nr_pages - 1;
- csrow->mtype = MEM_XDR;
- csrow->edac_mode = EDAC_SECDED;
+ nr_pages = resource_size(&r) >> PAGE_SHIFT;
+ csrow->last_page = csrow->first_page + nr_pages - 1;
+
+ for (j = 0; j < csrow->nr_channels; j++) {
+ dimm = csrow->channels[j].dimm;
+ dimm->mtype = MEM_XDR;
+ dimm->edac_mode = EDAC_SECDED;
+ dimm->nr_pages = nr_pages / csrow->nr_channels;
+ }
dev_dbg(mci->dev,
"Initialized on node %d, chanmask=0x%x,"
" first_page=0x%lx, nr_pages=0x%x\n",
priv->node, priv->chanmask,
- csrow->first_page, csrow->nr_pages);
+ csrow->first_page, nr_pages);
break;
}
}
{
struct cbe_mic_tm_regs __iomem *regs;
struct mem_ctl_info *mci;
+ struct edac_mc_layer layers[2];
struct cell_edac_priv *priv;
u64 reg;
- int rc, chanmask;
+ int rc, chanmask, num_chans;
regs = cbe_get_cpu_mic_tm_regs(cbe_node_to_cpu(pdev->id));
if (regs == NULL)
in_be64(®s->mic_fir));
/* Allocate & init EDAC MC data structure */
- mci = edac_mc_alloc(sizeof(struct cell_edac_priv), 1,
- chanmask == 3 ? 2 : 1, pdev->id);
+ num_chans = chanmask == 3 ? 2 : 1;
+
+ layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
+ layers[0].size = 1;
+ layers[0].is_virt_csrow = true;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = num_chans;
+ layers[1].is_virt_csrow = false;
+ mci = edac_mc_alloc(pdev->id, ARRAY_SIZE(layers), layers,
+ sizeof(struct cell_edac_priv));
if (mci == NULL)
return -ENOMEM;
priv = mci->pvt_info;
{
struct cpc925_mc_pdata *pdata = mci->pvt_info;
struct csrow_info *csrow;
- int index;
+ struct dimm_info *dimm;
+ int index, j;
u32 mbmr, mbbar, bba;
- unsigned long row_size, last_nr_pages = 0;
+ unsigned long row_size, nr_pages, last_nr_pages = 0;
get_total_mem(pdata);
row_size = bba * (1UL << 28); /* 256M */
csrow->first_page = last_nr_pages;
- csrow->nr_pages = row_size >> PAGE_SHIFT;
- csrow->last_page = csrow->first_page + csrow->nr_pages - 1;
+ nr_pages = row_size >> PAGE_SHIFT;
+ csrow->last_page = csrow->first_page + nr_pages - 1;
last_nr_pages = csrow->last_page + 1;
- csrow->mtype = MEM_RDDR;
- csrow->edac_mode = EDAC_SECDED;
-
- switch (csrow->nr_channels) {
- case 1: /* Single channel */
- csrow->grain = 32; /* four-beat burst of 32 bytes */
- break;
- case 2: /* Dual channel */
- default:
- csrow->grain = 64; /* four-beat burst of 64 bytes */
- break;
- }
-
- switch ((mbmr & MBMR_MODE_MASK) >> MBMR_MODE_SHIFT) {
- case 6: /* 0110, no way to differentiate X8 VS X16 */
- case 5: /* 0101 */
- case 8: /* 1000 */
- csrow->dtype = DEV_X16;
- break;
- case 7: /* 0111 */
- case 9: /* 1001 */
- csrow->dtype = DEV_X8;
- break;
- default:
- csrow->dtype = DEV_UNKNOWN;
- break;
+ for (j = 0; j < csrow->nr_channels; j++) {
+ dimm = csrow->channels[j].dimm;
+
+ dimm->nr_pages = nr_pages / csrow->nr_channels;
+ dimm->mtype = MEM_RDDR;
+ dimm->edac_mode = EDAC_SECDED;
+
+ switch (csrow->nr_channels) {
+ case 1: /* Single channel */
+ dimm->grain = 32; /* four-beat burst of 32 bytes */
+ break;
+ case 2: /* Dual channel */
+ default:
+ dimm->grain = 64; /* four-beat burst of 64 bytes */
+ break;
+ }
+
+ switch ((mbmr & MBMR_MODE_MASK) >> MBMR_MODE_SHIFT) {
+ case 6: /* 0110, no way to differentiate X8 VS X16 */
+ case 5: /* 0101 */
+ case 8: /* 1000 */
+ dimm->dtype = DEV_X16;
+ break;
+ case 7: /* 0111 */
+ case 9: /* 1001 */
+ dimm->dtype = DEV_X8;
+ break;
+ default:
+ dimm->dtype = DEV_UNKNOWN;
+ break;
+ }
}
}
}
if (apiexcp & CECC_EXCP_DETECTED) {
cpc925_mc_printk(mci, KERN_INFO, "DRAM CECC Fault\n");
channel = cpc925_mc_find_channel(mci, syndrome);
- edac_mc_handle_ce(mci, pfn, offset, syndrome,
- csrow, channel, mci->ctl_name);
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ pfn, offset, syndrome,
+ csrow, channel, -1,
+ mci->ctl_name, "", NULL);
}
if (apiexcp & UECC_EXCP_DETECTED) {
cpc925_mc_printk(mci, KERN_INFO, "DRAM UECC Fault\n");
- edac_mc_handle_ue(mci, pfn, offset, csrow, mci->ctl_name);
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ pfn, offset, 0,
+ csrow, -1, -1,
+ mci->ctl_name, "", NULL);
}
cpc925_mc_printk(mci, KERN_INFO, "Dump registers:\n");
{
static int edac_mc_idx;
struct mem_ctl_info *mci;
+ struct edac_mc_layer layers[2];
void __iomem *vbase;
struct cpc925_mc_pdata *pdata;
struct resource *r;
goto err2;
}
- nr_channels = cpc925_mc_get_channels(vbase);
- mci = edac_mc_alloc(sizeof(struct cpc925_mc_pdata),
- CPC925_NR_CSROWS, nr_channels + 1, edac_mc_idx);
+ nr_channels = cpc925_mc_get_channels(vbase) + 1;
+
+ layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
+ layers[0].size = CPC925_NR_CSROWS;
+ layers[0].is_virt_csrow = true;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = nr_channels;
+ layers[1].is_virt_csrow = false;
+ mci = edac_mc_alloc(edac_mc_idx, ARRAY_SIZE(layers), layers,
+ sizeof(struct cpc925_mc_pdata));
if (!mci) {
cpc925_printk(KERN_ERR, "No memory for mem_ctl_info\n");
res = -ENOMEM;
* This file may be distributed under the terms of the
* GNU General Public License.
*
- * See "enum e752x_chips" below for supported chipsets
+ * Implement support for the e7520, E7525, e7320 and i3100 memory controllers.
+ *
+ * Datasheets:
+ * http://www.intel.in/content/www/in/en/chipsets/e7525-memory-controller-hub-datasheet.html
+ * ftp://download.intel.com/design/intarch/datashts/31345803.pdf
*
* Written by Tom Zimmerman
*
* Wang Zhenyu at intel.com
* Dave Jiang at mvista.com
*
- * $Id: edac_e752x.c,v 1.5.2.11 2005/10/05 00:43:44 dsp_llnl Exp $
- *
*/
#include <linux/module.h>
I3100 = 3
};
+/*
+ * Those chips Support single-rank and dual-rank memories only.
+ *
+ * On e752x chips, the odd rows are present only on dual-rank memories.
+ * Dividing the rank by two will provide the dimm#
+ *
+ * i3100 MC has a different mapping: it supports only 4 ranks.
+ *
+ * The mapping is (from 1 to n):
+ * slot single-ranked double-ranked
+ * dimm #1 -> rank #4 NA
+ * dimm #2 -> rank #3 NA
+ * dimm #3 -> rank #2 Ranks 2 and 3
+ * dimm #4 -> rank $1 Ranks 1 and 4
+ *
+ * FIXME: The current mapping for i3100 considers that it supports up to 8
+ * ranks/chanel, but datasheet says that the MC supports only 4 ranks.
+ */
+
struct e752x_pvt {
struct pci_dev *bridge_ck;
struct pci_dev *dev_d0f0;
channel = !(error_one & 1);
/* e752x mc reads 34:6 of the DRAM linear address */
- edac_mc_handle_ce(mci, page, offset_in_page(sec1_add << 4),
- sec1_syndrome, row, channel, "e752x CE");
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ page, offset_in_page(sec1_add << 4), sec1_syndrome,
+ row, channel, -1,
+ "e752x CE", "", NULL);
}
static inline void process_ce(struct mem_ctl_info *mci, u16 error_one,
edac_mc_find_csrow_by_page(mci, block_page);
/* e752x mc reads 34:6 of the DRAM linear address */
- edac_mc_handle_ue(mci, block_page,
- offset_in_page(error_2b << 4),
- row, "e752x UE from Read");
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ block_page,
+ offset_in_page(error_2b << 4), 0,
+ row, -1, -1,
+ "e752x UE from Read", "", NULL);
+
}
if (error_one & 0x0404) {
error_2b = scrb_add;
edac_mc_find_csrow_by_page(mci, block_page);
/* e752x mc reads 34:6 of the DRAM linear address */
- edac_mc_handle_ue(mci, block_page,
- offset_in_page(error_2b << 4),
- row, "e752x UE from Scruber");
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ block_page,
+ offset_in_page(error_2b << 4), 0,
+ row, -1, -1,
+ "e752x UE from Scruber", "", NULL);
}
}
return;
debugf3("%s()\n", __func__);
- edac_mc_handle_ue_no_info(mci, "e752x UE log memory write");
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 0, 0, 0,
+ -1, -1, -1,
+ "e752x UE log memory write", "", NULL);
}
static void do_process_ded_retry(struct mem_ctl_info *mci, u16 error,
int drc_drbg; /* DRB granularity 0=64mb, 1=128mb */
int drc_ddim; /* DRAM Data Integrity Mode 0=none, 2=edac */
u8 value;
- u32 dra, drc, cumul_size;
+ u32 dra, drc, cumul_size, i, nr_pages;
dra = 0;
for (index = 0; index < 4; index++) {
dra |= dra_reg << (index * 8);
}
pci_read_config_dword(pdev, E752X_DRC, &drc);
- drc_chan = dual_channel_active(ddrcsr);
+ drc_chan = dual_channel_active(ddrcsr) ? 1 : 0;
drc_drbg = drc_chan + 1; /* 128 in dual mode, 64 in single */
drc_ddim = (drc >> 20) & 0x3;
csrow->first_page = last_cumul_size;
csrow->last_page = cumul_size - 1;
- csrow->nr_pages = cumul_size - last_cumul_size;
+ nr_pages = cumul_size - last_cumul_size;
last_cumul_size = cumul_size;
- csrow->grain = 1 << 12; /* 4KiB - resolution of CELOG */
- csrow->mtype = MEM_RDDR; /* only one type supported */
- csrow->dtype = mem_dev ? DEV_X4 : DEV_X8;
-
- /*
- * if single channel or x8 devices then SECDED
- * if dual channel and x4 then S4ECD4ED
- */
- if (drc_ddim) {
- if (drc_chan && mem_dev) {
- csrow->edac_mode = EDAC_S4ECD4ED;
- mci->edac_cap |= EDAC_FLAG_S4ECD4ED;
- } else {
- csrow->edac_mode = EDAC_SECDED;
- mci->edac_cap |= EDAC_FLAG_SECDED;
- }
- } else
- csrow->edac_mode = EDAC_NONE;
+
+ for (i = 0; i < csrow->nr_channels; i++) {
+ struct dimm_info *dimm = csrow->channels[i].dimm;
+
+ debugf3("Initializing rank at (%i,%i)\n", index, i);
+ dimm->nr_pages = nr_pages / csrow->nr_channels;
+ dimm->grain = 1 << 12; /* 4KiB - resolution of CELOG */
+ dimm->mtype = MEM_RDDR; /* only one type supported */
+ dimm->dtype = mem_dev ? DEV_X4 : DEV_X8;
+
+ /*
+ * if single channel or x8 devices then SECDED
+ * if dual channel and x4 then S4ECD4ED
+ */
+ if (drc_ddim) {
+ if (drc_chan && mem_dev) {
+ dimm->edac_mode = EDAC_S4ECD4ED;
+ mci->edac_cap |= EDAC_FLAG_S4ECD4ED;
+ } else {
+ dimm->edac_mode = EDAC_SECDED;
+ mci->edac_cap |= EDAC_FLAG_SECDED;
+ }
+ } else
+ dimm->edac_mode = EDAC_NONE;
+ }
}
}
u16 pci_data;
u8 stat8;
struct mem_ctl_info *mci;
+ struct edac_mc_layer layers[2];
struct e752x_pvt *pvt;
u16 ddrcsr;
int drc_chan; /* Number of channels 0=1chan,1=2chan */
/* Dual channel = 1, Single channel = 0 */
drc_chan = dual_channel_active(ddrcsr);
- mci = edac_mc_alloc(sizeof(*pvt), E752X_NR_CSROWS, drc_chan + 1, 0);
-
- if (mci == NULL) {
+ layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
+ layers[0].size = E752X_NR_CSROWS;
+ layers[0].is_virt_csrow = true;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = drc_chan + 1;
+ layers[1].is_virt_csrow = false;
+ mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, sizeof(*pvt));
+ if (mci == NULL)
return -ENOMEM;
- }
debugf3("%s(): init mci\n", __func__);
mci->mtype_cap = MEM_FLAG_RDDR;
* Based on work by Dan Hollis <goemon at anime dot net> and others.
* http://www.anime.net/~goemon/linux-ecc/
*
+ * Datasheet:
+ * http://www.intel.com/content/www/us/en/chipsets/e7501-chipset-memory-controller-hub-datasheet.html
+ *
* Contributors:
* Eric Biederman (Linux Networx)
* Tom Zimmerman (Linux Networx)
#endif /* PCI_DEVICE_ID_INTEL_7505_1_ERR */
#define E7XXX_NR_CSROWS 8 /* number of csrows */
-#define E7XXX_NR_DIMMS 8 /* FIXME - is this correct? */
+#define E7XXX_NR_DIMMS 8 /* 2 channels, 4 dimms/channel */
/* E7XXX register addresses - device 0 function 0 */
#define E7XXX_DRB 0x60 /* DRAM row boundary register (8b) */
row = edac_mc_find_csrow_by_page(mci, page);
/* convert syndrome to channel */
channel = e7xxx_find_channel(syndrome);
- edac_mc_handle_ce(mci, page, 0, syndrome, row, channel, "e7xxx CE");
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, page, 0, syndrome,
+ row, channel, -1, "e7xxx CE", "", NULL);
}
static void process_ce_no_info(struct mem_ctl_info *mci)
{
debugf3("%s()\n", __func__);
- edac_mc_handle_ce_no_info(mci, "e7xxx CE log register overflow");
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 0, 0, 0, -1, -1, -1,
+ "e7xxx CE log register overflow", "", NULL);
}
static void process_ue(struct mem_ctl_info *mci, struct e7xxx_error_info *info)
/* FIXME - should use PAGE_SHIFT */
block_page = error_2b >> 6; /* convert to 4k address */
row = edac_mc_find_csrow_by_page(mci, block_page);
- edac_mc_handle_ue(mci, block_page, 0, row, "e7xxx UE");
+
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, block_page, 0, 0,
+ row, -1, -1, "e7xxx UE", "", NULL);
}
static void process_ue_no_info(struct mem_ctl_info *mci)
{
debugf3("%s()\n", __func__);
- edac_mc_handle_ue_no_info(mci, "e7xxx UE log register overflow");
+
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 0, 0, 0, -1, -1, -1,
+ "e7xxx UE log register overflow", "", NULL);
}
static void e7xxx_get_error_info(struct mem_ctl_info *mci,
int dev_idx, u32 drc)
{
unsigned long last_cumul_size;
- int index;
+ int index, j;
u8 value;
- u32 dra, cumul_size;
+ u32 dra, cumul_size, nr_pages;
int drc_chan, drc_drbg, drc_ddim, mem_dev;
struct csrow_info *csrow;
+ struct dimm_info *dimm;
pci_read_config_dword(pdev, E7XXX_DRA, &dra);
drc_chan = dual_channel_active(drc, dev_idx);
csrow->first_page = last_cumul_size;
csrow->last_page = cumul_size - 1;
- csrow->nr_pages = cumul_size - last_cumul_size;
+ nr_pages = cumul_size - last_cumul_size;
last_cumul_size = cumul_size;
- csrow->grain = 1 << 12; /* 4KiB - resolution of CELOG */
- csrow->mtype = MEM_RDDR; /* only one type supported */
- csrow->dtype = mem_dev ? DEV_X4 : DEV_X8;
-
- /*
- * if single channel or x8 devices then SECDED
- * if dual channel and x4 then S4ECD4ED
- */
- if (drc_ddim) {
- if (drc_chan && mem_dev) {
- csrow->edac_mode = EDAC_S4ECD4ED;
- mci->edac_cap |= EDAC_FLAG_S4ECD4ED;
- } else {
- csrow->edac_mode = EDAC_SECDED;
- mci->edac_cap |= EDAC_FLAG_SECDED;
- }
- } else
- csrow->edac_mode = EDAC_NONE;
+
+ for (j = 0; j < drc_chan + 1; j++) {
+ dimm = csrow->channels[j].dimm;
+
+ dimm->nr_pages = nr_pages / (drc_chan + 1);
+ dimm->grain = 1 << 12; /* 4KiB - resolution of CELOG */
+ dimm->mtype = MEM_RDDR; /* only one type supported */
+ dimm->dtype = mem_dev ? DEV_X4 : DEV_X8;
+
+ /*
+ * if single channel or x8 devices then SECDED
+ * if dual channel and x4 then S4ECD4ED
+ */
+ if (drc_ddim) {
+ if (drc_chan && mem_dev) {
+ dimm->edac_mode = EDAC_S4ECD4ED;
+ mci->edac_cap |= EDAC_FLAG_S4ECD4ED;
+ } else {
+ dimm->edac_mode = EDAC_SECDED;
+ mci->edac_cap |= EDAC_FLAG_SECDED;
+ }
+ } else
+ dimm->edac_mode = EDAC_NONE;
+ }
}
}
{
u16 pci_data;
struct mem_ctl_info *mci = NULL;
+ struct edac_mc_layer layers[2];
struct e7xxx_pvt *pvt = NULL;
u32 drc;
int drc_chan;
pci_read_config_dword(pdev, E7XXX_DRC, &drc);
drc_chan = dual_channel_active(drc, dev_idx);
- mci = edac_mc_alloc(sizeof(*pvt), E7XXX_NR_CSROWS, drc_chan + 1, 0);
-
+ /*
+ * According with the datasheet, this device has a maximum of
+ * 4 DIMMS per channel, either single-rank or dual-rank. So, the
+ * total amount of dimms is 8 (E7XXX_NR_DIMMS).
+ * That means that the DIMM is mapped as CSROWs, and the channel
+ * will map the rank. So, an error to either channel should be
+ * attributed to the same dimm.
+ */
+ layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
+ layers[0].size = E7XXX_NR_CSROWS;
+ layers[0].is_virt_csrow = true;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = drc_chan + 1;
+ layers[1].is_virt_csrow = false;
+ mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, sizeof(*pvt));
if (mci == NULL)
return -ENOMEM;
#endif /* CONFIG_PCI */
-extern struct mem_ctl_info *edac_mc_alloc(unsigned sz_pvt, unsigned nr_csrows,
- unsigned nr_chans, int edac_index);
+struct mem_ctl_info *edac_mc_alloc(unsigned mc_num,
+ unsigned n_layers,
+ struct edac_mc_layer *layers,
+ unsigned sz_pvt);
extern int edac_mc_add_mc(struct mem_ctl_info *mci);
extern void edac_mc_free(struct mem_ctl_info *mci);
extern struct mem_ctl_info *edac_mc_find(int idx);
extern struct mem_ctl_info *edac_mc_del_mc(struct device *dev);
extern int edac_mc_find_csrow_by_page(struct mem_ctl_info *mci,
unsigned long page);
-
-/*
- * The no info errors are used when error overflows are reported.
- * There are a limited number of error logging registers that can
- * be exausted. When all registers are exhausted and an additional
- * error occurs then an error overflow register records that an
- * error occurred and the type of error, but doesn't have any
- * further information. The ce/ue versions make for cleaner
- * reporting logic and function interface - reduces conditional
- * statement clutter and extra function arguments.
- */
-extern void edac_mc_handle_ce(struct mem_ctl_info *mci,
- unsigned long page_frame_number,
- unsigned long offset_in_page,
- unsigned long syndrome, int row, int channel,
- const char *msg);
-extern void edac_mc_handle_ce_no_info(struct mem_ctl_info *mci,
- const char *msg);
-extern void edac_mc_handle_ue(struct mem_ctl_info *mci,
- unsigned long page_frame_number,
- unsigned long offset_in_page, int row,
- const char *msg);
-extern void edac_mc_handle_ue_no_info(struct mem_ctl_info *mci,
- const char *msg);
-extern void edac_mc_handle_fbd_ue(struct mem_ctl_info *mci, unsigned int csrow,
- unsigned int channel0, unsigned int channel1,
- char *msg);
-extern void edac_mc_handle_fbd_ce(struct mem_ctl_info *mci, unsigned int csrow,
- unsigned int channel, char *msg);
+void edac_mc_handle_error(const enum hw_event_mc_err_type type,
+ struct mem_ctl_info *mci,
+ const unsigned long page_frame_number,
+ const unsigned long offset_in_page,
+ const unsigned long syndrome,
+ const int layer0,
+ const int layer1,
+ const int layer2,
+ const char *msg,
+ const char *other_detail,
+ const void *mcelog);
/*
* edac_device APIs
extern void edac_device_handle_ce(struct edac_device_ctl_info *edac_dev,
int inst_nr, int block_nr, const char *msg);
extern int edac_device_alloc_index(void);
+extern const char *edac_layer_name[];
/*
* edac_pci APIs
unsigned total_size;
unsigned count;
unsigned instance, block, attr;
- void *pvt;
+ void *pvt, *p;
int err;
debugf4("%s() instances=%d blocks=%d\n",
* to be at least as stringent as what the compiler would
* provide if we could simply hardcode everything into a single struct.
*/
- dev_ctl = (struct edac_device_ctl_info *)NULL;
+ p = NULL;
+ dev_ctl = edac_align_ptr(&p, sizeof(*dev_ctl), 1);
/* Calc the 'end' offset past end of ONE ctl_info structure
* which will become the start of the 'instance' array
*/
- dev_inst = edac_align_ptr(&dev_ctl[1], sizeof(*dev_inst));
+ dev_inst = edac_align_ptr(&p, sizeof(*dev_inst), nr_instances);
/* Calc the 'end' offset past the instance array within the ctl_info
* which will become the start of the block array
*/
- dev_blk = edac_align_ptr(&dev_inst[nr_instances], sizeof(*dev_blk));
+ count = nr_instances * nr_blocks;
+ dev_blk = edac_align_ptr(&p, sizeof(*dev_blk), count);
/* Calc the 'end' offset past the dev_blk array
* which will become the start of the attrib array, if any.
*/
- count = nr_instances * nr_blocks;
- dev_attrib = edac_align_ptr(&dev_blk[count], sizeof(*dev_attrib));
-
- /* Check for case of when an attribute array is specified */
- if (nr_attrib > 0) {
- /* calc how many nr_attrib we need */
+ /* calc how many nr_attrib we need */
+ if (nr_attrib > 0)
count *= nr_attrib;
+ dev_attrib = edac_align_ptr(&p, sizeof(*dev_attrib), count);
- /* Calc the 'end' offset past the attributes array */
- pvt = edac_align_ptr(&dev_attrib[count], sz_private);
- } else {
- /* no attribute array specified */
- pvt = edac_align_ptr(dev_attrib, sz_private);
- }
+ /* Calc the 'end' offset past the attributes array */
+ pvt = edac_align_ptr(&p, sz_private, 1);
/* 'pvt' now points to where the private data area is.
* At this point 'pvt' (like dev_inst,dev_blk and dev_attrib)
{
debugf4("\tchannel = %p\n", chan);
debugf4("\tchannel->chan_idx = %d\n", chan->chan_idx);
- debugf4("\tchannel->ce_count = %d\n", chan->ce_count);
- debugf4("\tchannel->label = '%s'\n", chan->label);
debugf4("\tchannel->csrow = %p\n\n", chan->csrow);
+ debugf4("\tchannel->dimm = %p\n", chan->dimm);
+}
+
+static void edac_mc_dump_dimm(struct dimm_info *dimm)
+{
+ int i;
+
+ debugf4("\tdimm = %p\n", dimm);
+ debugf4("\tdimm->label = '%s'\n", dimm->label);
+ debugf4("\tdimm->nr_pages = 0x%x\n", dimm->nr_pages);
+ debugf4("\tdimm location ");
+ for (i = 0; i < dimm->mci->n_layers; i++) {
+ printk(KERN_CONT "%d", dimm->location[i]);
+ if (i < dimm->mci->n_layers - 1)
+ printk(KERN_CONT ".");
+ }
+ printk(KERN_CONT "\n");
+ debugf4("\tdimm->grain = %d\n", dimm->grain);
+ debugf4("\tdimm->nr_pages = 0x%x\n", dimm->nr_pages);
}
static void edac_mc_dump_csrow(struct csrow_info *csrow)
debugf4("\tcsrow->first_page = 0x%lx\n", csrow->first_page);
debugf4("\tcsrow->last_page = 0x%lx\n", csrow->last_page);
debugf4("\tcsrow->page_mask = 0x%lx\n", csrow->page_mask);
- debugf4("\tcsrow->nr_pages = 0x%x\n", csrow->nr_pages);
debugf4("\tcsrow->nr_channels = %d\n", csrow->nr_channels);
debugf4("\tcsrow->channels = %p\n", csrow->channels);
debugf4("\tcsrow->mci = %p\n\n", csrow->mci);
debugf4("\tmci->edac_check = %p\n", mci->edac_check);
debugf3("\tmci->nr_csrows = %d, csrows = %p\n",
mci->nr_csrows, mci->csrows);
+ debugf3("\tmci->nr_dimms = %d, dimms = %p\n",
+ mci->tot_dimms, mci->dimms);
debugf3("\tdev = %p\n", mci->dev);
debugf3("\tmod_name:ctl_name = %s:%s\n", mci->mod_name, mci->ctl_name);
debugf3("\tpvt_info = %p\n\n", mci->pvt_info);
};
EXPORT_SYMBOL_GPL(edac_mem_types);
-/* 'ptr' points to a possibly unaligned item X such that sizeof(X) is 'size'.
- * Adjust 'ptr' so that its alignment is at least as stringent as what the
- * compiler would provide for X and return the aligned result.
+/**
+ * edac_align_ptr - Prepares the pointer offsets for a single-shot allocation
+ * @p: pointer to a pointer with the memory offset to be used. At
+ * return, this will be incremented to point to the next offset
+ * @size: Size of the data structure to be reserved
+ * @n_elems: Number of elements that should be reserved
*
* If 'size' is a constant, the compiler will optimize this whole function
- * down to either a no-op or the addition of a constant to the value of 'ptr'.
+ * down to either a no-op or the addition of a constant to the value of '*p'.
+ *
+ * The 'p' pointer is absolutely needed to keep the proper advancing
+ * further in memory to the proper offsets when allocating the struct along
+ * with its embedded structs, as edac_device_alloc_ctl_info() does it
+ * above, for example.
+ *
+ * At return, the pointer 'p' will be incremented to be used on a next call
+ * to this function.
*/
-void *edac_align_ptr(void *ptr, unsigned size)
+void *edac_align_ptr(void **p, unsigned size, int n_elems)
{
unsigned align, r;
+ void *ptr = *p;
+
+ *p += size * n_elems;
- /* Here we assume that the alignment of a "long long" is the most
+ /*
+ * 'p' can possibly be an unaligned item X such that sizeof(X) is
+ * 'size'. Adjust 'p' so that its alignment is at least as
+ * stringent as what the compiler would provide for X and return
+ * the aligned result.
+ * Here we assume that the alignment of a "long long" is the most
* stringent alignment that the compiler will ever provide by default.
* As far as I know, this is a reasonable assumption.
*/
if (r == 0)
return (char *)ptr;
+ *p += align - r;
+
return (void *)(((unsigned long)ptr) + align - r);
}
/**
- * edac_mc_alloc: Allocate a struct mem_ctl_info structure
- * @size_pvt: size of private storage needed
- * @nr_csrows: Number of CWROWS needed for this MC
- * @nr_chans: Number of channels for the MC
+ * edac_mc_alloc: Allocate and partially fill a struct mem_ctl_info structure
+ * @mc_num: Memory controller number
+ * @n_layers: Number of MC hierarchy layers
+ * layers: Describes each layer as seen by the Memory Controller
+ * @size_pvt: size of private storage needed
+ *
*
* Everything is kmalloc'ed as one big chunk - more efficient.
* Only can be used if all structures have the same lifetime - otherwise
*
* Use edac_mc_free() to free mc structures allocated by this function.
*
+ * NOTE: drivers handle multi-rank memories in different ways: in some
+ * drivers, one multi-rank memory stick is mapped as one entry, while, in
+ * others, a single multi-rank memory stick would be mapped into several
+ * entries. Currently, this function will allocate multiple struct dimm_info
+ * on such scenarios, as grouping the multiple ranks require drivers change.
+ *
* Returns:
- * NULL allocation failed
- * struct mem_ctl_info pointer
+ * On failure: NULL
+ * On success: struct mem_ctl_info pointer
*/
-struct mem_ctl_info *edac_mc_alloc(unsigned sz_pvt, unsigned nr_csrows,
- unsigned nr_chans, int edac_index)
+struct mem_ctl_info *edac_mc_alloc(unsigned mc_num,
+ unsigned n_layers,
+ struct edac_mc_layer *layers,
+ unsigned sz_pvt)
{
struct mem_ctl_info *mci;
- struct csrow_info *csi, *csrow;
+ struct edac_mc_layer *layer;
+ struct csrow_info *csi, *csr;
struct rank_info *chi, *chp, *chan;
- void *pvt;
- unsigned size;
- int row, chn;
- int err;
+ struct dimm_info *dimm;
+ u32 *ce_per_layer[EDAC_MAX_LAYERS], *ue_per_layer[EDAC_MAX_LAYERS];
+ unsigned pos[EDAC_MAX_LAYERS];
+ unsigned size, tot_dimms = 1, count = 1;
+ unsigned tot_csrows = 1, tot_channels = 1, tot_errcount = 0;
+ void *pvt, *p, *ptr = NULL;
+ int i, j, err, row, chn, n, len;
+ bool per_rank = false;
+
+ BUG_ON(n_layers > EDAC_MAX_LAYERS || n_layers == 0);
+ /*
+ * Calculate the total amount of dimms and csrows/cschannels while
+ * in the old API emulation mode
+ */
+ for (i = 0; i < n_layers; i++) {
+ tot_dimms *= layers[i].size;
+ if (layers[i].is_virt_csrow)
+ tot_csrows *= layers[i].size;
+ else
+ tot_channels *= layers[i].size;
+
+ if (layers[i].type == EDAC_MC_LAYER_CHIP_SELECT)
+ per_rank = true;
+ }
/* Figure out the offsets of the various items from the start of an mc
* structure. We want the alignment of each item to be at least as
* stringent as what the compiler would provide if we could simply
* hardcode everything into a single struct.
*/
- mci = (struct mem_ctl_info *)0;
- csi = edac_align_ptr(&mci[1], sizeof(*csi));
- chi = edac_align_ptr(&csi[nr_csrows], sizeof(*chi));
- pvt = edac_align_ptr(&chi[nr_chans * nr_csrows], sz_pvt);
+ mci = edac_align_ptr(&ptr, sizeof(*mci), 1);
+ layer = edac_align_ptr(&ptr, sizeof(*layer), n_layers);
+ csi = edac_align_ptr(&ptr, sizeof(*csi), tot_csrows);
+ chi = edac_align_ptr(&ptr, sizeof(*chi), tot_csrows * tot_channels);
+ dimm = edac_align_ptr(&ptr, sizeof(*dimm), tot_dimms);
+ for (i = 0; i < n_layers; i++) {
+ count *= layers[i].size;
+ debugf4("%s: errcount layer %d size %d\n", __func__, i, count);
+ ce_per_layer[i] = edac_align_ptr(&ptr, sizeof(u32), count);
+ ue_per_layer[i] = edac_align_ptr(&ptr, sizeof(u32), count);
+ tot_errcount += 2 * count;
+ }
+
+ debugf4("%s: allocating %d error counters\n", __func__, tot_errcount);
+ pvt = edac_align_ptr(&ptr, sz_pvt, 1);
size = ((unsigned long)pvt) + sz_pvt;
+ debugf1("%s(): allocating %u bytes for mci data (%d %s, %d csrows/channels)\n",
+ __func__, size,
+ tot_dimms,
+ per_rank ? "ranks" : "dimms",
+ tot_csrows * tot_channels);
mci = kzalloc(size, GFP_KERNEL);
if (mci == NULL)
return NULL;
/* Adjust pointers so they point within the memory we just allocated
* rather than an imaginary chunk of memory located at address 0.
*/
+ layer = (struct edac_mc_layer *)(((char *)mci) + ((unsigned long)layer));
csi = (struct csrow_info *)(((char *)mci) + ((unsigned long)csi));
chi = (struct rank_info *)(((char *)mci) + ((unsigned long)chi));
+ dimm = (struct dimm_info *)(((char *)mci) + ((unsigned long)dimm));
+ for (i = 0; i < n_layers; i++) {
+ mci->ce_per_layer[i] = (u32 *)((char *)mci + ((unsigned long)ce_per_layer[i]));
+ mci->ue_per_layer[i] = (u32 *)((char *)mci + ((unsigned long)ue_per_layer[i]));
+ }
pvt = sz_pvt ? (((char *)mci) + ((unsigned long)pvt)) : NULL;
/* setup index and various internal pointers */
- mci->mc_idx = edac_index;
+ mci->mc_idx = mc_num;
mci->csrows = csi;
+ mci->dimms = dimm;
+ mci->tot_dimms = tot_dimms;
mci->pvt_info = pvt;
- mci->nr_csrows = nr_csrows;
-
- for (row = 0; row < nr_csrows; row++) {
- csrow = &csi[row];
- csrow->csrow_idx = row;
- csrow->mci = mci;
- csrow->nr_channels = nr_chans;
- chp = &chi[row * nr_chans];
- csrow->channels = chp;
+ mci->n_layers = n_layers;
+ mci->layers = layer;
+ memcpy(mci->layers, layers, sizeof(*layer) * n_layers);
+ mci->nr_csrows = tot_csrows;
+ mci->num_cschannel = tot_channels;
+ mci->mem_is_per_rank = per_rank;
- for (chn = 0; chn < nr_chans; chn++) {
+ /*
+ * Fill the csrow struct
+ */
+ for (row = 0; row < tot_csrows; row++) {
+ csr = &csi[row];
+ csr->csrow_idx = row;
+ csr->mci = mci;
+ csr->nr_channels = tot_channels;
+ chp = &chi[row * tot_channels];
+ csr->channels = chp;
+
+ for (chn = 0; chn < tot_channels; chn++) {
chan = &chp[chn];
chan->chan_idx = chn;
- chan->csrow = csrow;
+ chan->csrow = csr;
+ }
+ }
+
+ /*
+ * Fill the dimm struct
+ */
+ memset(&pos, 0, sizeof(pos));
+ row = 0;
+ chn = 0;
+ debugf4("%s: initializing %d %s\n", __func__, tot_dimms,
+ per_rank ? "ranks" : "dimms");
+ for (i = 0; i < tot_dimms; i++) {
+ chan = &csi[row].channels[chn];
+ dimm = EDAC_DIMM_PTR(layer, mci->dimms, n_layers,
+ pos[0], pos[1], pos[2]);
+ dimm->mci = mci;
+
+ debugf2("%s: %d: %s%zd (%d:%d:%d): row %d, chan %d\n", __func__,
+ i, per_rank ? "rank" : "dimm", (dimm - mci->dimms),
+ pos[0], pos[1], pos[2], row, chn);
+
+ /*
+ * Copy DIMM location and initialize it.
+ */
+ len = sizeof(dimm->label);
+ p = dimm->label;
+ n = snprintf(p, len, "mc#%u", mc_num);
+ p += n;
+ len -= n;
+ for (j = 0; j < n_layers; j++) {
+ n = snprintf(p, len, "%s#%u",
+ edac_layer_name[layers[j].type],
+ pos[j]);
+ p += n;
+ len -= n;
+ dimm->location[j] = pos[j];
+
+ if (len <= 0)
+ break;
+ }
+
+ /* Link it to the csrows old API data */
+ chan->dimm = dimm;
+ dimm->csrow = row;
+ dimm->cschannel = chn;
+
+ /* Increment csrow location */
+ row++;
+ if (row == tot_csrows) {
+ row = 0;
+ chn++;
+ }
+
+ /* Increment dimm location */
+ for (j = n_layers - 1; j >= 0; j--) {
+ pos[j]++;
+ if (pos[j] < layers[j].size)
+ break;
+ pos[j] = 0;
}
}
* edac_mc_add_mc: Insert the 'mci' structure into the mci global list and
* create sysfs entries associated with mci structure
* @mci: pointer to the mci structure to be added to the list
- * @mc_idx: A unique numeric identifier to be assigned to the 'mci' structure.
*
* Return:
* 0 Success
edac_mc_dump_channel(&mci->csrows[i].
channels[j]);
}
+ for (i = 0; i < mci->tot_dimms; i++)
+ edac_mc_dump_dimm(&mci->dimms[i]);
}
#endif
mutex_lock(&mem_ctls_mutex);
int edac_mc_find_csrow_by_page(struct mem_ctl_info *mci, unsigned long page)
{
struct csrow_info *csrows = mci->csrows;
- int row, i;
+ int row, i, j, n;
debugf1("MC%d: %s(): 0x%lx\n", mci->mc_idx, __func__, page);
row = -1;
for (i = 0; i < mci->nr_csrows; i++) {
struct csrow_info *csrow = &csrows[i];
-
- if (csrow->nr_pages == 0)
+ n = 0;
+ for (j = 0; j < csrow->nr_channels; j++) {
+ struct dimm_info *dimm = csrow->channels[j].dimm;
+ n += dimm->nr_pages;
+ }
+ if (n == 0)
continue;
debugf3("MC%d: %s(): first(0x%lx) page(0x%lx) last(0x%lx) "
}
EXPORT_SYMBOL_GPL(edac_mc_find_csrow_by_page);
-/* FIXME - setable log (warning/emerg) levels */
-/* FIXME - integrate with evlog: http://evlog.sourceforge.net/ */
-void edac_mc_handle_ce(struct mem_ctl_info *mci,
- unsigned long page_frame_number,
- unsigned long offset_in_page, unsigned long syndrome,
- int row, int channel, const char *msg)
-{
- unsigned long remapped_page;
+const char *edac_layer_name[] = {
+ [EDAC_MC_LAYER_BRANCH] = "branch",
+ [EDAC_MC_LAYER_CHANNEL] = "channel",
+ [EDAC_MC_LAYER_SLOT] = "slot",
+ [EDAC_MC_LAYER_CHIP_SELECT] = "csrow",
+};
+EXPORT_SYMBOL_GPL(edac_layer_name);
- debugf3("MC%d: %s()\n", mci->mc_idx, __func__);
+static void edac_inc_ce_error(struct mem_ctl_info *mci,
+ bool enable_per_layer_report,
+ const int pos[EDAC_MAX_LAYERS])
+{
+ int i, index = 0;
- /* FIXME - maybe make panic on INTERNAL ERROR an option */
- if (row >= mci->nr_csrows || row < 0) {
- /* something is wrong */
- edac_mc_printk(mci, KERN_ERR,
- "INTERNAL ERROR: row out of range "
- "(%d >= %d)\n", row, mci->nr_csrows);
- edac_mc_handle_ce_no_info(mci, "INTERNAL ERROR");
- return;
- }
+ mci->ce_mc++;
- if (channel >= mci->csrows[row].nr_channels || channel < 0) {
- /* something is wrong */
- edac_mc_printk(mci, KERN_ERR,
- "INTERNAL ERROR: channel out of range "
- "(%d >= %d)\n", channel,
- mci->csrows[row].nr_channels);
- edac_mc_handle_ce_no_info(mci, "INTERNAL ERROR");
+ if (!enable_per_layer_report) {
+ mci->ce_noinfo_count++;
return;
}
- if (edac_mc_get_log_ce())
- /* FIXME - put in DIMM location */
- edac_mc_printk(mci, KERN_WARNING,
- "CE page 0x%lx, offset 0x%lx, grain %d, syndrome "
- "0x%lx, row %d, channel %d, label \"%s\": %s\n",
- page_frame_number, offset_in_page,
- mci->csrows[row].grain, syndrome, row, channel,
- mci->csrows[row].channels[channel].label, msg);
-
- mci->ce_count++;
- mci->csrows[row].ce_count++;
- mci->csrows[row].channels[channel].ce_count++;
-
- if (mci->scrub_mode & SCRUB_SW_SRC) {
- /*
- * Some MC's can remap memory so that it is still available
- * at a different address when PCI devices map into memory.
- * MC's that can't do this lose the memory where PCI devices
- * are mapped. This mapping is MC dependent and so we call
- * back into the MC driver for it to map the MC page to
- * a physical (CPU) page which can then be mapped to a virtual
- * page - which can then be scrubbed.
- */
- remapped_page = mci->ctl_page_to_phys ?
- mci->ctl_page_to_phys(mci, page_frame_number) :
- page_frame_number;
+ for (i = 0; i < mci->n_layers; i++) {
+ if (pos[i] < 0)
+ break;
+ index += pos[i];
+ mci->ce_per_layer[i][index]++;
- edac_mc_scrub_block(remapped_page, offset_in_page,
- mci->csrows[row].grain);
+ if (i < mci->n_layers - 1)
+ index *= mci->layers[i + 1].size;
}
}
-EXPORT_SYMBOL_GPL(edac_mc_handle_ce);
-void edac_mc_handle_ce_no_info(struct mem_ctl_info *mci, const char *msg)
+static void edac_inc_ue_error(struct mem_ctl_info *mci,
+ bool enable_per_layer_report,
+ const int pos[EDAC_MAX_LAYERS])
{
- if (edac_mc_get_log_ce())
- edac_mc_printk(mci, KERN_WARNING,
- "CE - no information available: %s\n", msg);
+ int i, index = 0;
- mci->ce_noinfo_count++;
- mci->ce_count++;
-}
-EXPORT_SYMBOL_GPL(edac_mc_handle_ce_no_info);
+ mci->ue_mc++;
-void edac_mc_handle_ue(struct mem_ctl_info *mci,
- unsigned long page_frame_number,
- unsigned long offset_in_page, int row, const char *msg)
-{
- int len = EDAC_MC_LABEL_LEN * 4;
- char labels[len + 1];
- char *pos = labels;
- int chan;
- int chars;
-
- debugf3("MC%d: %s()\n", mci->mc_idx, __func__);
-
- /* FIXME - maybe make panic on INTERNAL ERROR an option */
- if (row >= mci->nr_csrows || row < 0) {
- /* something is wrong */
- edac_mc_printk(mci, KERN_ERR,
- "INTERNAL ERROR: row out of range "
- "(%d >= %d)\n", row, mci->nr_csrows);
- edac_mc_handle_ue_no_info(mci, "INTERNAL ERROR");
+ if (!enable_per_layer_report) {
+ mci->ce_noinfo_count++;
return;
}
- chars = snprintf(pos, len + 1, "%s",
- mci->csrows[row].channels[0].label);
- len -= chars;
- pos += chars;
+ for (i = 0; i < mci->n_layers; i++) {
+ if (pos[i] < 0)
+ break;
+ index += pos[i];
+ mci->ue_per_layer[i][index]++;
- for (chan = 1; (chan < mci->csrows[row].nr_channels) && (len > 0);
- chan++) {
- chars = snprintf(pos, len + 1, ":%s",
- mci->csrows[row].channels[chan].label);
- len -= chars;
- pos += chars;
+ if (i < mci->n_layers - 1)
+ index *= mci->layers[i + 1].size;
}
+}
- if (edac_mc_get_log_ue())
- edac_mc_printk(mci, KERN_EMERG,
- "UE page 0x%lx, offset 0x%lx, grain %d, row %d, "
- "labels \"%s\": %s\n", page_frame_number,
- offset_in_page, mci->csrows[row].grain, row,
- labels, msg);
+static void edac_ce_error(struct mem_ctl_info *mci,
+ const int pos[EDAC_MAX_LAYERS],
+ const char *msg,
+ const char *location,
+ const char *label,
+ const char *detail,
+ const char *other_detail,
+ const bool enable_per_layer_report,
+ const unsigned long page_frame_number,
+ const unsigned long offset_in_page,
+ u32 grain)
+{
+ unsigned long remapped_page;
- if (edac_mc_get_panic_on_ue())
- panic("EDAC MC%d: UE page 0x%lx, offset 0x%lx, grain %d, "
- "row %d, labels \"%s\": %s\n", mci->mc_idx,
- page_frame_number, offset_in_page,
- mci->csrows[row].grain, row, labels, msg);
+ if (edac_mc_get_log_ce()) {
+ if (other_detail && *other_detail)
+ edac_mc_printk(mci, KERN_WARNING,
+ "CE %s on %s (%s%s - %s)\n",
+ msg, label, location,
+ detail, other_detail);
+ else
+ edac_mc_printk(mci, KERN_WARNING,
+ "CE %s on %s (%s%s)\n",
+ msg, label, location,
+ detail);
+ }
+ edac_inc_ce_error(mci, enable_per_layer_report, pos);
- mci->ue_count++;
- mci->csrows[row].ue_count++;
+ if (mci->scrub_mode & SCRUB_SW_SRC) {
+ /*
+ * Some memory controllers (called MCs below) can remap
+ * memory so that it is still available at a different
+ * address when PCI devices map into memory.
+ * MC's that can't do this, lose the memory where PCI
+ * devices are mapped. This mapping is MC-dependent
+ * and so we call back into the MC driver for it to
+ * map the MC page to a physical (CPU) page which can
+ * then be mapped to a virtual page - which can then
+ * be scrubbed.
+ */
+ remapped_page = mci->ctl_page_to_phys ?
+ mci->ctl_page_to_phys(mci, page_frame_number) :
+ page_frame_number;
+
+ edac_mc_scrub_block(remapped_page,
+ offset_in_page, grain);
+ }
}
-EXPORT_SYMBOL_GPL(edac_mc_handle_ue);
-void edac_mc_handle_ue_no_info(struct mem_ctl_info *mci, const char *msg)
+static void edac_ue_error(struct mem_ctl_info *mci,
+ const int pos[EDAC_MAX_LAYERS],
+ const char *msg,
+ const char *location,
+ const char *label,
+ const char *detail,
+ const char *other_detail,
+ const bool enable_per_layer_report)
{
- if (edac_mc_get_panic_on_ue())
- panic("EDAC MC%d: Uncorrected Error", mci->mc_idx);
+ if (edac_mc_get_log_ue()) {
+ if (other_detail && *other_detail)
+ edac_mc_printk(mci, KERN_WARNING,
+ "UE %s on %s (%s%s - %s)\n",
+ msg, label, location, detail,
+ other_detail);
+ else
+ edac_mc_printk(mci, KERN_WARNING,
+ "UE %s on %s (%s%s)\n",
+ msg, label, location, detail);
+ }
- if (edac_mc_get_log_ue())
- edac_mc_printk(mci, KERN_WARNING,
- "UE - no information available: %s\n", msg);
- mci->ue_noinfo_count++;
- mci->ue_count++;
+ if (edac_mc_get_panic_on_ue()) {
+ if (other_detail && *other_detail)
+ panic("UE %s on %s (%s%s - %s)\n",
+ msg, label, location, detail, other_detail);
+ else
+ panic("UE %s on %s (%s%s)\n",
+ msg, label, location, detail);
+ }
+
+ edac_inc_ue_error(mci, enable_per_layer_report, pos);
}
-EXPORT_SYMBOL_GPL(edac_mc_handle_ue_no_info);
-/*************************************************************
- * On Fully Buffered DIMM modules, this help function is
- * called to process UE events
- */
-void edac_mc_handle_fbd_ue(struct mem_ctl_info *mci,
- unsigned int csrow,
- unsigned int channela,
- unsigned int channelb, char *msg)
+#define OTHER_LABEL " or "
+void edac_mc_handle_error(const enum hw_event_mc_err_type type,
+ struct mem_ctl_info *mci,
+ const unsigned long page_frame_number,
+ const unsigned long offset_in_page,
+ const unsigned long syndrome,
+ const int layer0,
+ const int layer1,
+ const int layer2,
+ const char *msg,
+ const char *other_detail,
+ const void *mcelog)
{
- int len = EDAC_MC_LABEL_LEN * 4;
- char labels[len + 1];
- char *pos = labels;
- int chars;
+ /* FIXME: too much for stack: move it to some pre-alocated area */
+ char detail[80], location[80];
+ char label[(EDAC_MC_LABEL_LEN + 1 + sizeof(OTHER_LABEL)) * mci->tot_dimms];
+ char *p;
+ int row = -1, chan = -1;
+ int pos[EDAC_MAX_LAYERS] = { layer0, layer1, layer2 };
+ int i;
+ u32 grain;
+ bool enable_per_layer_report = false;
- if (csrow >= mci->nr_csrows) {
- /* something is wrong */
- edac_mc_printk(mci, KERN_ERR,
- "INTERNAL ERROR: row out of range (%d >= %d)\n",
- csrow, mci->nr_csrows);
- edac_mc_handle_ue_no_info(mci, "INTERNAL ERROR");
- return;
- }
+ debugf3("MC%d: %s()\n", mci->mc_idx, __func__);
- if (channela >= mci->csrows[csrow].nr_channels) {
- /* something is wrong */
- edac_mc_printk(mci, KERN_ERR,
- "INTERNAL ERROR: channel-a out of range "
- "(%d >= %d)\n",
- channela, mci->csrows[csrow].nr_channels);
- edac_mc_handle_ue_no_info(mci, "INTERNAL ERROR");
- return;
+ /*
+ * Check if the event report is consistent and if the memory
+ * location is known. If it is known, enable_per_layer_report will be
+ * true, the DIMM(s) label info will be filled and the per-layer
+ * error counters will be incremented.
+ */
+ for (i = 0; i < mci->n_layers; i++) {
+ if (pos[i] >= (int)mci->layers[i].size) {
+ if (type == HW_EVENT_ERR_CORRECTED)
+ p = "CE";
+ else
+ p = "UE";
+
+ edac_mc_printk(mci, KERN_ERR,
+ "INTERNAL ERROR: %s value is out of range (%d >= %d)\n",
+ edac_layer_name[mci->layers[i].type],
+ pos[i], mci->layers[i].size);
+ /*
+ * Instead of just returning it, let's use what's
+ * known about the error. The increment routines and
+ * the DIMM filter logic will do the right thing by
+ * pointing the likely damaged DIMMs.
+ */
+ pos[i] = -1;
+ }
+ if (pos[i] >= 0)
+ enable_per_layer_report = true;
}
- if (channelb >= mci->csrows[csrow].nr_channels) {
- /* something is wrong */
- edac_mc_printk(mci, KERN_ERR,
- "INTERNAL ERROR: channel-b out of range "
- "(%d >= %d)\n",
- channelb, mci->csrows[csrow].nr_channels);
- edac_mc_handle_ue_no_info(mci, "INTERNAL ERROR");
- return;
- }
+ /*
+ * Get the dimm label/grain that applies to the match criteria.
+ * As the error algorithm may not be able to point to just one memory
+ * stick, the logic here will get all possible labels that could
+ * pottentially be affected by the error.
+ * On FB-DIMM memory controllers, for uncorrected errors, it is common
+ * to have only the MC channel and the MC dimm (also called "branch")
+ * but the channel is not known, as the memory is arranged in pairs,
+ * where each memory belongs to a separate channel within the same
+ * branch.
+ */
+ grain = 0;
+ p = label;
+ *p = '\0';
+ for (i = 0; i < mci->tot_dimms; i++) {
+ struct dimm_info *dimm = &mci->dimms[i];
- mci->ue_count++;
- mci->csrows[csrow].ue_count++;
+ if (layer0 >= 0 && layer0 != dimm->location[0])
+ continue;
+ if (layer1 >= 0 && layer1 != dimm->location[1])
+ continue;
+ if (layer2 >= 0 && layer2 != dimm->location[2])
+ continue;
- /* Generate the DIMM labels from the specified channels */
- chars = snprintf(pos, len + 1, "%s",
- mci->csrows[csrow].channels[channela].label);
- len -= chars;
- pos += chars;
- chars = snprintf(pos, len + 1, "-%s",
- mci->csrows[csrow].channels[channelb].label);
+ /* get the max grain, over the error match range */
+ if (dimm->grain > grain)
+ grain = dimm->grain;
- if (edac_mc_get_log_ue())
- edac_mc_printk(mci, KERN_EMERG,
- "UE row %d, channel-a= %d channel-b= %d "
- "labels \"%s\": %s\n", csrow, channela, channelb,
- labels, msg);
+ /*
+ * If the error is memory-controller wide, there's no need to
+ * seek for the affected DIMMs because the whole
+ * channel/memory controller/... may be affected.
+ * Also, don't show errors for empty DIMM slots.
+ */
+ if (enable_per_layer_report && dimm->nr_pages) {
+ if (p != label) {
+ strcpy(p, OTHER_LABEL);
+ p += strlen(OTHER_LABEL);
+ }
+ strcpy(p, dimm->label);
+ p += strlen(p);
+ *p = '\0';
+
+ /*
+ * get csrow/channel of the DIMM, in order to allow
+ * incrementing the compat API counters
+ */
+ debugf4("%s: %s csrows map: (%d,%d)\n",
+ __func__,
+ mci->mem_is_per_rank ? "rank" : "dimm",
+ dimm->csrow, dimm->cschannel);
+
+ if (row == -1)
+ row = dimm->csrow;
+ else if (row >= 0 && row != dimm->csrow)
+ row = -2;
+
+ if (chan == -1)
+ chan = dimm->cschannel;
+ else if (chan >= 0 && chan != dimm->cschannel)
+ chan = -2;
+ }
+ }
- if (edac_mc_get_panic_on_ue())
- panic("UE row %d, channel-a= %d channel-b= %d "
- "labels \"%s\": %s\n", csrow, channela,
- channelb, labels, msg);
-}
-EXPORT_SYMBOL(edac_mc_handle_fbd_ue);
+ if (!enable_per_layer_report) {
+ strcpy(label, "any memory");
+ } else {
+ debugf4("%s: csrow/channel to increment: (%d,%d)\n",
+ __func__, row, chan);
+ if (p == label)
+ strcpy(label, "unknown memory");
+ if (type == HW_EVENT_ERR_CORRECTED) {
+ if (row >= 0) {
+ mci->csrows[row].ce_count++;
+ if (chan >= 0)
+ mci->csrows[row].channels[chan].ce_count++;
+ }
+ } else
+ if (row >= 0)
+ mci->csrows[row].ue_count++;
+ }
-/*************************************************************
- * On Fully Buffered DIMM modules, this help function is
- * called to process CE events
- */
-void edac_mc_handle_fbd_ce(struct mem_ctl_info *mci,
- unsigned int csrow, unsigned int channel, char *msg)
-{
+ /* Fill the RAM location data */
+ p = location;
+ for (i = 0; i < mci->n_layers; i++) {
+ if (pos[i] < 0)
+ continue;
- /* Ensure boundary values */
- if (csrow >= mci->nr_csrows) {
- /* something is wrong */
- edac_mc_printk(mci, KERN_ERR,
- "INTERNAL ERROR: row out of range (%d >= %d)\n",
- csrow, mci->nr_csrows);
- edac_mc_handle_ce_no_info(mci, "INTERNAL ERROR");
- return;
- }
- if (channel >= mci->csrows[csrow].nr_channels) {
- /* something is wrong */
- edac_mc_printk(mci, KERN_ERR,
- "INTERNAL ERROR: channel out of range (%d >= %d)\n",
- channel, mci->csrows[csrow].nr_channels);
- edac_mc_handle_ce_no_info(mci, "INTERNAL ERROR");
- return;
+ p += sprintf(p, "%s:%d ",
+ edac_layer_name[mci->layers[i].type],
+ pos[i]);
}
- if (edac_mc_get_log_ce())
- /* FIXME - put in DIMM location */
- edac_mc_printk(mci, KERN_WARNING,
- "CE row %d, channel %d, label \"%s\": %s\n",
- csrow, channel,
- mci->csrows[csrow].channels[channel].label, msg);
+ /* Memory type dependent details about the error */
+ if (type == HW_EVENT_ERR_CORRECTED) {
+ snprintf(detail, sizeof(detail),
+ "page:0x%lx offset:0x%lx grain:%d syndrome:0x%lx",
+ page_frame_number, offset_in_page,
+ grain, syndrome);
+ edac_ce_error(mci, pos, msg, location, label, detail,
+ other_detail, enable_per_layer_report,
+ page_frame_number, offset_in_page, grain);
+ } else {
+ snprintf(detail, sizeof(detail),
+ "page:0x%lx offset:0x%lx grain:%d",
+ page_frame_number, offset_in_page, grain);
- mci->ce_count++;
- mci->csrows[csrow].ce_count++;
- mci->csrows[csrow].channels[channel].ce_count++;
+ edac_ue_error(mci, pos, msg, location, label, detail,
+ other_detail, enable_per_layer_report);
+ }
}
-EXPORT_SYMBOL(edac_mc_handle_fbd_ce);
+EXPORT_SYMBOL_GPL(edac_mc_handle_error);
static ssize_t csrow_size_show(struct csrow_info *csrow, char *data,
int private)
{
- return sprintf(data, "%u\n", PAGES_TO_MiB(csrow->nr_pages));
+ int i;
+ u32 nr_pages = 0;
+
+ for (i = 0; i < csrow->nr_channels; i++)
+ nr_pages += csrow->channels[i].dimm->nr_pages;
+
+ return sprintf(data, "%u\n", PAGES_TO_MiB(nr_pages));
}
static ssize_t csrow_mem_type_show(struct csrow_info *csrow, char *data,
int private)
{
- return sprintf(data, "%s\n", mem_types[csrow->mtype]);
+ return sprintf(data, "%s\n", mem_types[csrow->channels[0].dimm->mtype]);
}
static ssize_t csrow_dev_type_show(struct csrow_info *csrow, char *data,
int private)
{
- return sprintf(data, "%s\n", dev_types[csrow->dtype]);
+ return sprintf(data, "%s\n", dev_types[csrow->channels[0].dimm->dtype]);
}
static ssize_t csrow_edac_mode_show(struct csrow_info *csrow, char *data,
int private)
{
- return sprintf(data, "%s\n", edac_caps[csrow->edac_mode]);
+ return sprintf(data, "%s\n", edac_caps[csrow->channels[0].dimm->edac_mode]);
}
/* show/store functions for DIMM Label attributes */
char *data, int channel)
{
/* if field has not been initialized, there is nothing to send */
- if (!csrow->channels[channel].label[0])
+ if (!csrow->channels[channel].dimm->label[0])
return 0;
return snprintf(data, EDAC_MC_LABEL_LEN, "%s\n",
- csrow->channels[channel].label);
+ csrow->channels[channel].dimm->label);
}
static ssize_t channel_dimm_label_store(struct csrow_info *csrow,
ssize_t max_size = 0;
max_size = min((ssize_t) count, (ssize_t) EDAC_MC_LABEL_LEN - 1);
- strncpy(csrow->channels[channel].label, data, max_size);
- csrow->channels[channel].label[max_size] = '\0';
+ strncpy(csrow->channels[channel].dimm->label, data, max_size);
+ csrow->channels[channel].dimm->label[max_size] = '\0';
return max_size;
}
mci->ue_noinfo_count = 0;
mci->ce_noinfo_count = 0;
- mci->ue_count = 0;
- mci->ce_count = 0;
+ mci->ue_mc = 0;
+ mci->ce_mc = 0;
for (row = 0; row < mci->nr_csrows; row++) {
struct csrow_info *ri = &mci->csrows[row];
/* default attribute files for the MCI object */
static ssize_t mci_ue_count_show(struct mem_ctl_info *mci, char *data)
{
- return sprintf(data, "%d\n", mci->ue_count);
+ return sprintf(data, "%d\n", mci->ue_mc);
}
static ssize_t mci_ce_count_show(struct mem_ctl_info *mci, char *data)
{
- return sprintf(data, "%d\n", mci->ce_count);
+ return sprintf(data, "%d\n", mci->ce_mc);
}
static ssize_t mci_ce_noinfo_show(struct mem_ctl_info *mci, char *data)
static ssize_t mci_size_mb_show(struct mem_ctl_info *mci, char *data)
{
- int total_pages, csrow_idx;
+ int total_pages = 0, csrow_idx, j;
- for (total_pages = csrow_idx = 0; csrow_idx < mci->nr_csrows;
- csrow_idx++) {
+ for (csrow_idx = 0; csrow_idx < mci->nr_csrows; csrow_idx++) {
struct csrow_info *csrow = &mci->csrows[csrow_idx];
- if (!csrow->nr_pages)
- continue;
+ for (j = 0; j < csrow->nr_channels; j++) {
+ struct dimm_info *dimm = csrow->channels[j].dimm;
- total_pages += csrow->nr_pages;
+ total_pages += dimm->nr_pages;
+ }
}
return sprintf(data, "%u\n", PAGES_TO_MiB(total_pages));
*/
int edac_create_sysfs_mci_device(struct mem_ctl_info *mci)
{
- int i;
+ int i, j;
int err;
struct csrow_info *csrow;
struct kobject *kobj_mci = &mci->edac_mci_kobj;
/* Make directories for each CSROW object under the mc<id> kobject
*/
for (i = 0; i < mci->nr_csrows; i++) {
+ int nr_pages = 0;
+
csrow = &mci->csrows[i];
+ for (j = 0; j < csrow->nr_channels; j++)
+ nr_pages += csrow->channels[j].dimm->nr_pages;
- /* Only expose populated CSROWs */
- if (csrow->nr_pages > 0) {
+ if (nr_pages > 0) {
err = edac_create_csrow_object(mci, csrow, i);
if (err) {
debugf1("%s() failure: create csrow %d obj\n",
return 0;
- /* CSROW error: backout what has already been registered, */
fail1:
for (i--; i >= 0; i--) {
- if (csrow->nr_pages > 0) {
+ int nr_pages = 0;
+
+ csrow = &mci->csrows[i];
+ for (j = 0; j < csrow->nr_channels; j++)
+ nr_pages += csrow->channels[j].dimm->nr_pages;
+ if (nr_pages > 0)
kobject_put(&mci->csrows[i].kobj);
- }
}
/* remove the mci instance's attributes, if any */
*/
void edac_remove_sysfs_mci_device(struct mem_ctl_info *mci)
{
- int i;
+ struct csrow_info *csrow;
+ int i, j;
debugf0("%s()\n", __func__);
/* remove all csrow kobjects */
debugf4("%s() unregister this mci kobj\n", __func__);
for (i = 0; i < mci->nr_csrows; i++) {
- if (mci->csrows[i].nr_pages > 0) {
+ int nr_pages = 0;
+
+ csrow = &mci->csrows[i];
+ for (j = 0; j < csrow->nr_channels; j++)
+ nr_pages += csrow->channels[j].dimm->nr_pages;
+ if (nr_pages > 0) {
debugf0("%s() unreg csrow-%d\n", __func__, i);
kobject_put(&mci->csrows[i].kobj);
}
*edac_dev, unsigned long value);
extern void edac_mc_reset_delay_period(int value);
-extern void *edac_align_ptr(void *ptr, unsigned size);
+extern void *edac_align_ptr(void **p, unsigned size, int n_elems);
/*
* EDAC PCI functions
const char *edac_pci_name)
{
struct edac_pci_ctl_info *pci;
- void *pvt;
+ void *p = NULL, *pvt;
unsigned int size;
debugf1("%s()\n", __func__);
- pci = (struct edac_pci_ctl_info *)0;
- pvt = edac_align_ptr(&pci[1], sz_pvt);
+ pci = edac_align_ptr(&p, sizeof(*pci), 1);
+ pvt = edac_align_ptr(&p, 1, sz_pvt);
size = ((unsigned long)pvt) + sz_pvt;
/* Alloc the needed control struct memory */
return 1;
if ((info->errsts ^ info->errsts2) & I3000_ERRSTS_BITS) {
- edac_mc_handle_ce_no_info(mci, "UE overwrote CE");
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 0, 0, 0,
+ -1, -1, -1,
+ "UE overwrote CE", "", NULL);
info->errsts = info->errsts2;
}
row = edac_mc_find_csrow_by_page(mci, pfn);
if (info->errsts & I3000_ERRSTS_UE)
- edac_mc_handle_ue(mci, pfn, offset, row, "i3000 UE");
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ pfn, offset, 0,
+ row, -1, -1,
+ "i3000 UE", "", NULL);
else
- edac_mc_handle_ce(mci, pfn, offset, info->derrsyn, row,
- multi_chan ? channel : 0, "i3000 CE");
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ pfn, offset, info->derrsyn,
+ row, multi_chan ? channel : 0, -1,
+ "i3000 CE", "", NULL);
return 1;
}
static int i3000_probe1(struct pci_dev *pdev, int dev_idx)
{
int rc;
- int i;
+ int i, j;
struct mem_ctl_info *mci = NULL;
- unsigned long last_cumul_size;
+ struct edac_mc_layer layers[2];
+ unsigned long last_cumul_size, nr_pages;
int interleaved, nr_channels;
unsigned char dra[I3000_RANKS / 2], drb[I3000_RANKS];
unsigned char *c0dra = dra, *c1dra = &dra[I3000_RANKS_PER_CHANNEL / 2];
*/
interleaved = i3000_is_interleaved(c0dra, c1dra, c0drb, c1drb);
nr_channels = interleaved ? 2 : 1;
- mci = edac_mc_alloc(0, I3000_RANKS / nr_channels, nr_channels, 0);
+
+ layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
+ layers[0].size = I3000_RANKS / nr_channels;
+ layers[0].is_virt_csrow = true;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = nr_channels;
+ layers[1].is_virt_csrow = false;
+ mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, 0);
if (!mci)
return -ENOMEM;
cumul_size <<= 1;
debugf3("MC: %s(): (%d) cumul_size 0x%x\n",
__func__, i, cumul_size);
- if (cumul_size == last_cumul_size) {
- csrow->mtype = MEM_EMPTY;
+ if (cumul_size == last_cumul_size)
continue;
- }
csrow->first_page = last_cumul_size;
csrow->last_page = cumul_size - 1;
- csrow->nr_pages = cumul_size - last_cumul_size;
+ nr_pages = cumul_size - last_cumul_size;
last_cumul_size = cumul_size;
- csrow->grain = I3000_DEAP_GRAIN;
- csrow->mtype = MEM_DDR2;
- csrow->dtype = DEV_UNKNOWN;
- csrow->edac_mode = EDAC_UNKNOWN;
+
+ for (j = 0; j < nr_channels; j++) {
+ struct dimm_info *dimm = csrow->channels[j].dimm;
+
+ dimm->nr_pages = nr_pages / nr_channels;
+ dimm->grain = I3000_DEAP_GRAIN;
+ dimm->mtype = MEM_DDR2;
+ dimm->dtype = DEV_UNKNOWN;
+ dimm->edac_mode = EDAC_UNKNOWN;
+ }
}
/*
#define PCI_DEVICE_ID_INTEL_3200_HB 0x29f0
+#define I3200_DIMMS 4
#define I3200_RANKS 8
#define I3200_RANKS_PER_CHANNEL 4
#define I3200_CHANNELS 2
return;
if ((info->errsts ^ info->errsts2) & I3200_ERRSTS_BITS) {
- edac_mc_handle_ce_no_info(mci, "UE overwrote CE");
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 0, 0, 0,
+ -1, -1, -1, "UE overwrote CE", "", NULL);
info->errsts = info->errsts2;
}
for (channel = 0; channel < nr_channels; channel++) {
log = info->eccerrlog[channel];
if (log & I3200_ECCERRLOG_UE) {
- edac_mc_handle_ue(mci, 0, 0,
- eccerrlog_row(channel, log),
- "i3200 UE");
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ 0, 0, 0,
+ eccerrlog_row(channel, log),
+ -1, -1,
+ "i3000 UE", "", NULL);
} else if (log & I3200_ECCERRLOG_CE) {
- edac_mc_handle_ce(mci, 0, 0,
- eccerrlog_syndrome(log),
- eccerrlog_row(channel, log), 0,
- "i3200 CE");
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ 0, 0, eccerrlog_syndrome(log),
+ eccerrlog_row(channel, log),
+ -1, -1,
+ "i3000 UE", "", NULL);
}
}
}
static int i3200_probe1(struct pci_dev *pdev, int dev_idx)
{
int rc;
- int i;
+ int i, j;
struct mem_ctl_info *mci = NULL;
- unsigned long last_page;
+ struct edac_mc_layer layers[2];
u16 drbs[I3200_CHANNELS][I3200_RANKS_PER_CHANNEL];
bool stacked;
void __iomem *window;
i3200_get_drbs(window, drbs);
nr_channels = how_many_channels(pdev);
- mci = edac_mc_alloc(sizeof(struct i3200_priv), I3200_RANKS,
- nr_channels, 0);
+ layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
+ layers[0].size = I3200_DIMMS;
+ layers[0].is_virt_csrow = true;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = nr_channels;
+ layers[1].is_virt_csrow = false;
+ mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers,
+ sizeof(struct i3200_priv));
if (!mci)
return -ENOMEM;
* cumulative; the last one will contain the total memory
* contained in all ranks.
*/
- last_page = -1UL;
for (i = 0; i < mci->nr_csrows; i++) {
unsigned long nr_pages;
struct csrow_info *csrow = &mci->csrows[i];
i / I3200_RANKS_PER_CHANNEL,
i % I3200_RANKS_PER_CHANNEL);
- if (nr_pages == 0) {
- csrow->mtype = MEM_EMPTY;
+ if (nr_pages == 0)
continue;
- }
- csrow->first_page = last_page + 1;
- last_page += nr_pages;
- csrow->last_page = last_page;
- csrow->nr_pages = nr_pages;
+ for (j = 0; j < nr_channels; j++) {
+ struct dimm_info *dimm = csrow->channels[j].dimm;
- csrow->grain = nr_pages << PAGE_SHIFT;
- csrow->mtype = MEM_DDR2;
- csrow->dtype = DEV_UNKNOWN;
- csrow->edac_mode = EDAC_UNKNOWN;
+ dimm->nr_pages = nr_pages / nr_channels;
+ dimm->grain = nr_pages << PAGE_SHIFT;
+ dimm->mtype = MEM_DDR2;
+ dimm->dtype = DEV_UNKNOWN;
+ dimm->edac_mode = EDAC_UNKNOWN;
+ }
}
i3200_clear_error_info(mci);
#define MTR3 0x8C
#define NUM_MTRS 4
-#define CHANNELS_PER_BRANCH (2)
+#define CHANNELS_PER_BRANCH 2
+#define MAX_BRANCHES 2
/* Defines to extract the vaious fields from the
* MTRx - Memory Technology Registers
char msg[EDAC_MC_LABEL_LEN + 1 + 160];
char *specific = NULL;
u32 allErrors;
- int branch;
int channel;
int bank;
int rank;
if (!allErrors)
return; /* if no error, return now */
- branch = EXTRACT_FBDCHAN_INDX(info->ferr_fat_fbd);
- channel = branch;
+ channel = EXTRACT_FBDCHAN_INDX(info->ferr_fat_fbd);
/* Use the NON-Recoverable macros to extract data */
bank = NREC_BANK(info->nrecmema);
ras = NREC_RAS(info->nrecmemb);
cas = NREC_CAS(info->nrecmemb);
- debugf0("\t\tCSROW= %d Channels= %d,%d (Branch= %d "
- "DRAM Bank= %d rdwr= %s ras= %d cas= %d)\n",
- rank, channel, channel + 1, branch >> 1, bank,
+ debugf0("\t\tCSROW= %d Channel= %d "
+ "(DRAM Bank= %d rdwr= %s ras= %d cas= %d)\n",
+ rank, channel, bank,
rdwr ? "Write" : "Read", ras, cas);
/* Only 1 bit will be on */
/* Form out message */
snprintf(msg, sizeof(msg),
- "(Branch=%d DRAM-Bank=%d RDWR=%s RAS=%d CAS=%d "
- "FATAL Err=0x%x (%s))",
- branch >> 1, bank, rdwr ? "Write" : "Read", ras, cas,
- allErrors, specific);
+ "Bank=%d RAS=%d CAS=%d FATAL Err=0x%x (%s)",
+ bank, ras, cas, allErrors, specific);
/* Call the helper to output message */
- edac_mc_handle_fbd_ue(mci, rank, channel, channel + 1, msg);
+ edac_mc_handle_error(HW_EVENT_ERR_FATAL, mci, 0, 0, 0,
+ channel >> 1, channel & 1, rank,
+ rdwr ? "Write error" : "Read error",
+ msg, NULL);
}
/*
/* Form out message */
snprintf(msg, sizeof(msg),
- "(Branch=%d DRAM-Bank=%d RDWR=%s RAS=%d "
- "CAS=%d, UE Err=0x%x (%s))",
- branch >> 1, bank, rdwr ? "Write" : "Read", ras, cas,
- ue_errors, specific);
+ "Rank=%d Bank=%d RAS=%d CAS=%d, UE Err=0x%x (%s)",
+ rank, bank, ras, cas, ue_errors, specific);
/* Call the helper to output message */
- edac_mc_handle_fbd_ue(mci, rank, channel, channel + 1, msg);
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 0, 0, 0,
+ channel >> 1, -1, rank,
+ rdwr ? "Write error" : "Read error",
+ msg, NULL);
}
/* Check correctable errors */
/* Form out message */
snprintf(msg, sizeof(msg),
- "(Branch=%d DRAM-Bank=%d RDWR=%s RAS=%d "
+ "Rank=%d Bank=%d RDWR=%s RAS=%d "
"CAS=%d, CE Err=0x%x (%s))", branch >> 1, bank,
rdwr ? "Write" : "Read", ras, cas, ce_errors,
specific);
/* Call the helper to output message */
- edac_mc_handle_fbd_ce(mci, rank, channel, msg);
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 0, 0, 0,
+ channel >> 1, channel % 2, rank,
+ rdwr ? "Write error" : "Read error",
+ msg, NULL);
}
if (!misc_messages)
/* Form out message */
snprintf(msg, sizeof(msg),
- "(Branch=%d Err=%#x (%s))", branch >> 1,
- misc_errors, specific);
+ "Err=%#x (%s)", misc_errors, specific);
/* Call the helper to output message */
- edac_mc_handle_fbd_ce(mci, 0, 0, msg);
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 0, 0, 0,
+ branch >> 1, -1, -1,
+ "Misc error", msg, NULL);
}
}
*
* return the proper MTR register as determine by the csrow and channel desired
*/
-static int determine_mtr(struct i5000_pvt *pvt, int csrow, int channel)
+static int determine_mtr(struct i5000_pvt *pvt, int slot, int channel)
{
int mtr;
if (channel < CHANNELS_PER_BRANCH)
- mtr = pvt->b0_mtr[csrow >> 1];
+ mtr = pvt->b0_mtr[slot];
else
- mtr = pvt->b1_mtr[csrow >> 1];
+ mtr = pvt->b1_mtr[slot];
return mtr;
}
debugf2("\t\tNUMCOL: %s\n", numcol_toString[MTR_DIMM_COLS(mtr)]);
}
-static void handle_channel(struct i5000_pvt *pvt, int csrow, int channel,
+static void handle_channel(struct i5000_pvt *pvt, int slot, int channel,
struct i5000_dimm_info *dinfo)
{
int mtr;
int amb_present_reg;
int addrBits;
- mtr = determine_mtr(pvt, csrow, channel);
+ mtr = determine_mtr(pvt, slot, channel);
if (MTR_DIMMS_PRESENT(mtr)) {
amb_present_reg = determine_amb_present_reg(pvt, channel);
- /* Determine if there is a DIMM present in this DIMM slot */
- if (amb_present_reg & (1 << (csrow >> 1))) {
+ /* Determine if there is a DIMM present in this DIMM slot */
+ if (amb_present_reg) {
dinfo->dual_rank = MTR_DIMM_RANK(mtr);
- if (!((dinfo->dual_rank == 0) &&
- ((csrow & 0x1) == 0x1))) {
- /* Start with the number of bits for a Bank
- * on the DRAM */
- addrBits = MTR_DRAM_BANKS_ADDR_BITS(mtr);
- /* Add thenumber of ROW bits */
- addrBits += MTR_DIMM_ROWS_ADDR_BITS(mtr);
- /* add the number of COLUMN bits */
- addrBits += MTR_DIMM_COLS_ADDR_BITS(mtr);
-
- addrBits += 6; /* add 64 bits per DIMM */
- addrBits -= 20; /* divide by 2^^20 */
- addrBits -= 3; /* 8 bits per bytes */
-
- dinfo->megabytes = 1 << addrBits;
- }
+ /* Start with the number of bits for a Bank
+ * on the DRAM */
+ addrBits = MTR_DRAM_BANKS_ADDR_BITS(mtr);
+ /* Add the number of ROW bits */
+ addrBits += MTR_DIMM_ROWS_ADDR_BITS(mtr);
+ /* add the number of COLUMN bits */
+ addrBits += MTR_DIMM_COLS_ADDR_BITS(mtr);
+
+ addrBits += 6; /* add 64 bits per DIMM */
+ addrBits -= 20; /* divide by 2^^20 */
+ addrBits -= 3; /* 8 bits per bytes */
+
+ dinfo->megabytes = 1 << addrBits;
}
}
}
static void calculate_dimm_size(struct i5000_pvt *pvt)
{
struct i5000_dimm_info *dinfo;
- int csrow, max_csrows;
+ int slot, channel, branch;
char *p, *mem_buffer;
int space, n;
- int channel;
/* ================= Generate some debug output ================= */
space = PAGE_SIZE;
return;
}
- n = snprintf(p, space, "\n");
- p += n;
- space -= n;
-
- /* Scan all the actual CSROWS (which is # of DIMMS * 2)
+ /* Scan all the actual slots
* and calculate the information for each DIMM
- * Start with the highest csrow first, to display it first
- * and work toward the 0th csrow
+ * Start with the highest slot first, to display it first
+ * and work toward the 0th slot
*/
- max_csrows = pvt->maxdimmperch * 2;
- for (csrow = max_csrows - 1; csrow >= 0; csrow--) {
+ for (slot = pvt->maxdimmperch - 1; slot >= 0; slot--) {
- /* on an odd csrow, first output a 'boundary' marker,
+ /* on an odd slot, first output a 'boundary' marker,
* then reset the message buffer */
- if (csrow & 0x1) {
- n = snprintf(p, space, "---------------------------"
+ if (slot & 0x1) {
+ n = snprintf(p, space, "--------------------------"
"--------------------------------");
p += n;
space -= n;
p = mem_buffer;
space = PAGE_SIZE;
}
- n = snprintf(p, space, "csrow %2d ", csrow);
+ n = snprintf(p, space, "slot %2d ", slot);
p += n;
space -= n;
for (channel = 0; channel < pvt->maxch; channel++) {
- dinfo = &pvt->dimm_info[csrow][channel];
- handle_channel(pvt, csrow, channel, dinfo);
- n = snprintf(p, space, "%4d MB | ", dinfo->megabytes);
+ dinfo = &pvt->dimm_info[slot][channel];
+ handle_channel(pvt, slot, channel, dinfo);
+ if (dinfo->megabytes)
+ n = snprintf(p, space, "%4d MB %dR| ",
+ dinfo->megabytes, dinfo->dual_rank + 1);
+ else
+ n = snprintf(p, space, "%4d MB | ", 0);
p += n;
space -= n;
}
- n = snprintf(p, space, "\n");
p += n;
space -= n;
+ debugf2("%s\n", mem_buffer);
+ p = mem_buffer;
+ space = PAGE_SIZE;
}
/* Output the last bottom 'boundary' marker */
- n = snprintf(p, space, "---------------------------"
- "--------------------------------\n");
+ n = snprintf(p, space, "--------------------------"
+ "--------------------------------");
p += n;
space -= n;
+ debugf2("%s\n", mem_buffer);
+ p = mem_buffer;
+ space = PAGE_SIZE;
/* now output the 'channel' labels */
- n = snprintf(p, space, " ");
+ n = snprintf(p, space, " ");
p += n;
space -= n;
for (channel = 0; channel < pvt->maxch; channel++) {
p += n;
space -= n;
}
- n = snprintf(p, space, "\n");
+ debugf2("%s\n", mem_buffer);
+ p = mem_buffer;
+ space = PAGE_SIZE;
+
+ n = snprintf(p, space, " ");
p += n;
- space -= n;
+ for (branch = 0; branch < MAX_BRANCHES; branch++) {
+ n = snprintf(p, space, " branch %d | ", branch);
+ p += n;
+ space -= n;
+ }
/* output the last message and free buffer */
debugf2("%s\n", mem_buffer);
static int i5000_init_csrows(struct mem_ctl_info *mci)
{
struct i5000_pvt *pvt;
- struct csrow_info *p_csrow;
+ struct dimm_info *dimm;
int empty, channel_count;
int max_csrows;
- int mtr, mtr1;
+ int mtr;
int csrow_megs;
int channel;
- int csrow;
+ int slot;
pvt = mci->pvt_info;
empty = 1; /* Assume NO memory */
- for (csrow = 0; csrow < max_csrows; csrow++) {
- p_csrow = &mci->csrows[csrow];
-
- p_csrow->csrow_idx = csrow;
-
- /* use branch 0 for the basis */
- mtr = pvt->b0_mtr[csrow >> 1];
- mtr1 = pvt->b1_mtr[csrow >> 1];
-
- /* if no DIMMS on this row, continue */
- if (!MTR_DIMMS_PRESENT(mtr) && !MTR_DIMMS_PRESENT(mtr1))
- continue;
+ /*
+ * FIXME: The memory layout used to map slot/channel into the
+ * real memory architecture is weird: branch+slot are "csrows"
+ * and channel is channel. That required an extra array (dimm_info)
+ * to map the dimms. A good cleanup would be to remove this array,
+ * and do a loop here with branch, channel, slot
+ */
+ for (slot = 0; slot < max_csrows; slot++) {
+ for (channel = 0; channel < pvt->maxch; channel++) {
- /* FAKE OUT VALUES, FIXME */
- p_csrow->first_page = 0 + csrow * 20;
- p_csrow->last_page = 9 + csrow * 20;
- p_csrow->page_mask = 0xFFF;
+ mtr = determine_mtr(pvt, slot, channel);
- p_csrow->grain = 8;
+ if (!MTR_DIMMS_PRESENT(mtr))
+ continue;
- csrow_megs = 0;
- for (channel = 0; channel < pvt->maxch; channel++) {
- csrow_megs += pvt->dimm_info[csrow][channel].megabytes;
- }
+ dimm = EDAC_DIMM_PTR(mci->layers, mci->dimms, mci->n_layers,
+ channel / MAX_BRANCHES,
+ channel % MAX_BRANCHES, slot);
- p_csrow->nr_pages = csrow_megs << 8;
+ csrow_megs = pvt->dimm_info[slot][channel].megabytes;
+ dimm->grain = 8;
- /* Assume DDR2 for now */
- p_csrow->mtype = MEM_FB_DDR2;
+ /* Assume DDR2 for now */
+ dimm->mtype = MEM_FB_DDR2;
- /* ask what device type on this row */
- if (MTR_DRAM_WIDTH(mtr))
- p_csrow->dtype = DEV_X8;
- else
- p_csrow->dtype = DEV_X4;
+ /* ask what device type on this row */
+ if (MTR_DRAM_WIDTH(mtr))
+ dimm->dtype = DEV_X8;
+ else
+ dimm->dtype = DEV_X4;
- p_csrow->edac_mode = EDAC_S8ECD8ED;
+ dimm->edac_mode = EDAC_S8ECD8ED;
+ dimm->nr_pages = csrow_megs << 8;
+ }
empty = 0;
}
}
/*
- * i5000_get_dimm_and_channel_counts(pdev, &num_csrows, &num_channels)
+ * i5000_get_dimm_and_channel_counts(pdev, &nr_csrows, &num_channels)
*
* ask the device how many channels are present and how many CSROWS
* as well
* supported on this memory controller
*/
pci_read_config_byte(pdev, MAXDIMMPERCH, &value);
- *num_dimms_per_channel = (int)value *2;
+ *num_dimms_per_channel = (int)value;
pci_read_config_byte(pdev, MAXCH, &value);
*num_channels = (int)value;
static int i5000_probe1(struct pci_dev *pdev, int dev_idx)
{
struct mem_ctl_info *mci;
+ struct edac_mc_layer layers[3];
struct i5000_pvt *pvt;
int num_channels;
int num_dimms_per_channel;
- int num_csrows;
debugf0("MC: %s: %s(), pdev bus %u dev=0x%x fn=0x%x\n",
__FILE__, __func__,
*/
i5000_get_dimm_and_channel_counts(pdev, &num_dimms_per_channel,
&num_channels);
- num_csrows = num_dimms_per_channel * 2;
- debugf0("MC: %s(): Number of - Channels= %d DIMMS= %d CSROWS= %d\n",
- __func__, num_channels, num_dimms_per_channel, num_csrows);
+ debugf0("MC: %s(): Number of Branches=2 Channels= %d DIMMS= %d\n",
+ __func__, num_channels, num_dimms_per_channel);
/* allocate a new MC control structure */
- mci = edac_mc_alloc(sizeof(*pvt), num_csrows, num_channels, 0);
+ layers[0].type = EDAC_MC_LAYER_BRANCH;
+ layers[0].size = MAX_BRANCHES;
+ layers[0].is_virt_csrow = false;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = num_channels / MAX_BRANCHES;
+ layers[1].is_virt_csrow = false;
+ layers[2].type = EDAC_MC_LAYER_SLOT;
+ layers[2].size = num_dimms_per_channel;
+ layers[2].is_virt_csrow = true;
+ mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, sizeof(*pvt));
if (mci == NULL)
return -ENOMEM;
* rows for each respective channel are laid out one after another,
* the first half belonging to channel 0, the second half belonging
* to channel 1.
+ *
+ * This driver is for DDR2 DIMMs, and it uses chip select to select among the
+ * several ranks. However, instead of showing memories as ranks, it outputs
+ * them as DIMM's. An internal table creates the association between ranks
+ * and DIMM's.
*/
#include <linux/module.h>
#include <linux/init.h>
return csrow / priv->ranksperchan;
}
-static unsigned i5100_rank_to_csrow(const struct mem_ctl_info *mci,
- int chan, int rank)
-{
- const struct i5100_priv *priv = mci->pvt_info;
-
- return chan * priv->ranksperchan + rank;
-}
-
static void i5100_handle_ce(struct mem_ctl_info *mci,
int chan,
unsigned bank,
unsigned ras,
const char *msg)
{
- const int csrow = i5100_rank_to_csrow(mci, chan, rank);
+ char detail[80];
- printk(KERN_ERR
- "CE chan %d, bank %u, rank %u, syndrome 0x%lx, "
- "cas %u, ras %u, csrow %u, label \"%s\": %s\n",
- chan, bank, rank, syndrome, cas, ras,
- csrow, mci->csrows[csrow].channels[0].label, msg);
+ /* Form out message */
+ snprintf(detail, sizeof(detail),
+ "bank %u, cas %u, ras %u\n",
+ bank, cas, ras);
- mci->ce_count++;
- mci->csrows[csrow].ce_count++;
- mci->csrows[csrow].channels[0].ce_count++;
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ 0, 0, syndrome,
+ chan, rank, -1,
+ msg, detail, NULL);
}
static void i5100_handle_ue(struct mem_ctl_info *mci,
unsigned ras,
const char *msg)
{
- const int csrow = i5100_rank_to_csrow(mci, chan, rank);
+ char detail[80];
- printk(KERN_ERR
- "UE chan %d, bank %u, rank %u, syndrome 0x%lx, "
- "cas %u, ras %u, csrow %u, label \"%s\": %s\n",
- chan, bank, rank, syndrome, cas, ras,
- csrow, mci->csrows[csrow].channels[0].label, msg);
+ /* Form out message */
+ snprintf(detail, sizeof(detail),
+ "bank %u, cas %u, ras %u\n",
+ bank, cas, ras);
- mci->ue_count++;
- mci->csrows[csrow].ue_count++;
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ 0, 0, syndrome,
+ chan, rank, -1,
+ msg, detail, NULL);
}
static void i5100_read_log(struct mem_ctl_info *mci, int chan,
static void __devinit i5100_init_csrows(struct mem_ctl_info *mci)
{
int i;
- unsigned long total_pages = 0UL;
struct i5100_priv *priv = mci->pvt_info;
- for (i = 0; i < mci->nr_csrows; i++) {
+ for (i = 0; i < mci->tot_dimms; i++) {
+ struct dimm_info *dimm;
const unsigned long npages = i5100_npages(mci, i);
const unsigned chan = i5100_csrow_to_chan(mci, i);
const unsigned rank = i5100_csrow_to_rank(mci, i);
if (!npages)
continue;
- /*
- * FIXME: these two are totally bogus -- I don't see how to
- * map them correctly to this structure...
- */
- mci->csrows[i].first_page = total_pages;
- mci->csrows[i].last_page = total_pages + npages - 1;
- mci->csrows[i].page_mask = 0UL;
-
- mci->csrows[i].nr_pages = npages;
- mci->csrows[i].grain = 32;
- mci->csrows[i].csrow_idx = i;
- mci->csrows[i].dtype =
- (priv->mtr[chan][rank].width == 4) ? DEV_X4 : DEV_X8;
- mci->csrows[i].ue_count = 0;
- mci->csrows[i].ce_count = 0;
- mci->csrows[i].mtype = MEM_RDDR2;
- mci->csrows[i].edac_mode = EDAC_SECDED;
- mci->csrows[i].mci = mci;
- mci->csrows[i].nr_channels = 1;
- mci->csrows[i].channels[0].chan_idx = 0;
- mci->csrows[i].channels[0].ce_count = 0;
- mci->csrows[i].channels[0].csrow = mci->csrows + i;
- snprintf(mci->csrows[i].channels[0].label,
- sizeof(mci->csrows[i].channels[0].label),
- "DIMM%u", i5100_rank_to_slot(mci, chan, rank));
-
- total_pages += npages;
+ dimm = EDAC_DIMM_PTR(mci->layers, mci->dimms, mci->n_layers,
+ chan, rank, 0);
+
+ dimm->nr_pages = npages;
+ if (npages) {
+ dimm->grain = 32;
+ dimm->dtype = (priv->mtr[chan][rank].width == 4) ?
+ DEV_X4 : DEV_X8;
+ dimm->mtype = MEM_RDDR2;
+ dimm->edac_mode = EDAC_SECDED;
+ snprintf(dimm->label, sizeof(dimm->label),
+ "DIMM%u",
+ i5100_rank_to_slot(mci, chan, rank));
+ }
+
+ debugf2("dimm channel %d, rank %d, size %ld\n",
+ chan, rank, (long)PAGES_TO_MiB(npages));
}
}
{
int rc;
struct mem_ctl_info *mci;
+ struct edac_mc_layer layers[2];
struct i5100_priv *priv;
struct pci_dev *ch0mm, *ch1mm;
int ret = 0;
goto bail_ch1;
}
- mci = edac_mc_alloc(sizeof(*priv), ranksperch * 2, 1, 0);
+ layers[0].type = EDAC_MC_LAYER_CHANNEL;
+ layers[0].size = 2;
+ layers[0].is_virt_csrow = false;
+ layers[1].type = EDAC_MC_LAYER_SLOT;
+ layers[1].size = ranksperch;
+ layers[1].is_virt_csrow = true;
+ mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers,
+ sizeof(*priv));
if (!mci) {
ret = -ENOMEM;
goto bail_disable_ch1;
* Intel 5400 Chipset Memory Controller Hub (MCH) - Datasheet
* http://developer.intel.com/design/chipsets/datashts/313070.htm
*
+ * This Memory Controller manages DDR2 FB-DIMMs. It has 2 branches, each with
+ * 2 channels operating in lockstep no-mirror mode. Each channel can have up to
+ * 4 dimm's, each with up to 8GB.
+ *
*/
#include <linux/module.h>
edac_mc_chipset_printk(mci, level, "i5400", fmt, ##arg)
/* Limits for i5400 */
-#define NUM_MTRS_PER_BRANCH 4
+#define MAX_BRANCHES 2
#define CHANNELS_PER_BRANCH 2
-#define MAX_DIMMS_PER_CHANNEL NUM_MTRS_PER_BRANCH
-#define MAX_CHANNELS 4
-/* max possible csrows per channel */
-#define MAX_CSROWS (MAX_DIMMS_PER_CHANNEL)
+#define DIMMS_PER_CHANNEL 4
+#define MAX_CHANNELS (MAX_BRANCHES * CHANNELS_PER_BRANCH)
/* Device 16,
* Function 0: System Address
u16 mir0, mir1;
- u16 b0_mtr[NUM_MTRS_PER_BRANCH]; /* Memory Technlogy Reg */
+ u16 b0_mtr[DIMMS_PER_CHANNEL]; /* Memory Technlogy Reg */
u16 b0_ambpresent0; /* Branch 0, Channel 0 */
u16 b0_ambpresent1; /* Brnach 0, Channel 1 */
- u16 b1_mtr[NUM_MTRS_PER_BRANCH]; /* Memory Technlogy Reg */
+ u16 b1_mtr[DIMMS_PER_CHANNEL]; /* Memory Technlogy Reg */
u16 b1_ambpresent0; /* Branch 1, Channel 8 */
u16 b1_ambpresent1; /* Branch 1, Channel 1 */
/* DIMM information matrix, allocating architecture maximums */
- struct i5400_dimm_info dimm_info[MAX_CSROWS][MAX_CHANNELS];
+ struct i5400_dimm_info dimm_info[DIMMS_PER_CHANNEL][MAX_CHANNELS];
/* Actual values for this controller */
int maxch; /* Max channels */
int ras, cas;
int errnum;
char *type = NULL;
+ enum hw_event_mc_err_type tp_event = HW_EVENT_ERR_UNCORRECTED;
if (!allErrors)
return; /* if no error, return now */
- if (allErrors & ERROR_FAT_MASK)
+ if (allErrors & ERROR_FAT_MASK) {
type = "FATAL";
- else if (allErrors & FERR_NF_UNCORRECTABLE)
+ tp_event = HW_EVENT_ERR_FATAL;
+ } else if (allErrors & FERR_NF_UNCORRECTABLE)
type = "NON-FATAL uncorrected";
else
type = "NON-FATAL recoverable";
ras = nrec_ras(info);
cas = nrec_cas(info);
- debugf0("\t\tCSROW= %d Channels= %d,%d (Branch= %d "
+ debugf0("\t\tDIMM= %d Channels= %d,%d (Branch= %d "
"DRAM Bank= %d Buffer ID = %d rdwr= %s ras= %d cas= %d)\n",
rank, channel, channel + 1, branch >> 1, bank,
buf_id, rdwr_str(rdwr), ras, cas);
/* Form out message */
snprintf(msg, sizeof(msg),
- "%s (Branch=%d DRAM-Bank=%d Buffer ID = %d RDWR=%s "
- "RAS=%d CAS=%d %s Err=0x%lx (%s))",
- type, branch >> 1, bank, buf_id, rdwr_str(rdwr), ras, cas,
- type, allErrors, error_name[errnum]);
+ "Bank=%d Buffer ID = %d RAS=%d CAS=%d Err=0x%lx (%s)",
+ bank, buf_id, ras, cas, allErrors, error_name[errnum]);
- /* Call the helper to output message */
- edac_mc_handle_fbd_ue(mci, rank, channel, channel + 1, msg);
+ edac_mc_handle_error(tp_event, mci, 0, 0, 0,
+ branch >> 1, -1, rank,
+ rdwr ? "Write error" : "Read error",
+ msg, NULL);
}
/*
/* Only 1 bit will be on */
errnum = find_first_bit(&allErrors, ARRAY_SIZE(error_name));
- debugf0("\t\tCSROW= %d Channel= %d (Branch %d "
+ debugf0("\t\tDIMM= %d Channel= %d (Branch %d "
"DRAM Bank= %d rdwr= %s ras= %d cas= %d)\n",
rank, channel, branch >> 1, bank,
rdwr_str(rdwr), ras, cas);
branch >> 1, bank, rdwr_str(rdwr), ras, cas,
allErrors, error_name[errnum]);
- /* Call the helper to output message */
- edac_mc_handle_fbd_ce(mci, rank, channel, msg);
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 0, 0, 0,
+ branch >> 1, channel % 2, rank,
+ rdwr ? "Write error" : "Read error",
+ msg, NULL);
return;
}
/*
* determine_amb_present
*
- * the information is contained in NUM_MTRS_PER_BRANCH different
- * registers determining which of the NUM_MTRS_PER_BRANCH requires
+ * the information is contained in DIMMS_PER_CHANNEL different
+ * registers determining which of the DIMMS_PER_CHANNEL requires
* knowing which channel is in question
*
* 2 branches, each with 2 channels
}
/*
- * determine_mtr(pvt, csrow, channel)
+ * determine_mtr(pvt, dimm, channel)
*
- * return the proper MTR register as determine by the csrow and desired channel
+ * return the proper MTR register as determine by the dimm and desired channel
*/
-static int determine_mtr(struct i5400_pvt *pvt, int csrow, int channel)
+static int determine_mtr(struct i5400_pvt *pvt, int dimm, int channel)
{
int mtr;
int n;
/* There is one MTR for each slot pair of FB-DIMMs,
Each slot pair may be at branch 0 or branch 1.
*/
- n = csrow;
+ n = dimm;
- if (n >= NUM_MTRS_PER_BRANCH) {
- debugf0("ERROR: trying to access an invalid csrow: %d\n",
- csrow);
+ if (n >= DIMMS_PER_CHANNEL) {
+ debugf0("ERROR: trying to access an invalid dimm: %d\n",
+ dimm);
return 0;
}
debugf2("\t\tNUMCOL: %s\n", numcol_toString[MTR_DIMM_COLS(mtr)]);
}
-static void handle_channel(struct i5400_pvt *pvt, int csrow, int channel,
+static void handle_channel(struct i5400_pvt *pvt, int dimm, int channel,
struct i5400_dimm_info *dinfo)
{
int mtr;
int amb_present_reg;
int addrBits;
- mtr = determine_mtr(pvt, csrow, channel);
+ mtr = determine_mtr(pvt, dimm, channel);
if (MTR_DIMMS_PRESENT(mtr)) {
amb_present_reg = determine_amb_present_reg(pvt, channel);
/* Determine if there is a DIMM present in this DIMM slot */
- if (amb_present_reg & (1 << csrow)) {
+ if (amb_present_reg & (1 << dimm)) {
/* Start with the number of bits for a Bank
* on the DRAM */
addrBits = MTR_DRAM_BANKS_ADDR_BITS(mtr);
static void calculate_dimm_size(struct i5400_pvt *pvt)
{
struct i5400_dimm_info *dinfo;
- int csrow, max_csrows;
+ int dimm, max_dimms;
char *p, *mem_buffer;
int space, n;
- int channel;
+ int channel, branch;
/* ================= Generate some debug output ================= */
space = PAGE_SIZE;
return;
}
- /* Scan all the actual CSROWS
+ /* Scan all the actual DIMMS
* and calculate the information for each DIMM
- * Start with the highest csrow first, to display it first
- * and work toward the 0th csrow
+ * Start with the highest dimm first, to display it first
+ * and work toward the 0th dimm
*/
- max_csrows = pvt->maxdimmperch;
- for (csrow = max_csrows - 1; csrow >= 0; csrow--) {
+ max_dimms = pvt->maxdimmperch;
+ for (dimm = max_dimms - 1; dimm >= 0; dimm--) {
- /* on an odd csrow, first output a 'boundary' marker,
+ /* on an odd dimm, first output a 'boundary' marker,
* then reset the message buffer */
- if (csrow & 0x1) {
+ if (dimm & 0x1) {
n = snprintf(p, space, "---------------------------"
- "--------------------------------");
+ "-------------------------------");
p += n;
space -= n;
debugf2("%s\n", mem_buffer);
p = mem_buffer;
space = PAGE_SIZE;
}
- n = snprintf(p, space, "csrow %2d ", csrow);
+ n = snprintf(p, space, "dimm %2d ", dimm);
p += n;
space -= n;
for (channel = 0; channel < pvt->maxch; channel++) {
- dinfo = &pvt->dimm_info[csrow][channel];
- handle_channel(pvt, csrow, channel, dinfo);
+ dinfo = &pvt->dimm_info[dimm][channel];
+ handle_channel(pvt, dimm, channel, dinfo);
n = snprintf(p, space, "%4d MB | ", dinfo->megabytes);
p += n;
space -= n;
/* Output the last bottom 'boundary' marker */
n = snprintf(p, space, "---------------------------"
- "--------------------------------");
+ "-------------------------------");
p += n;
space -= n;
debugf2("%s\n", mem_buffer);
space = PAGE_SIZE;
/* now output the 'channel' labels */
- n = snprintf(p, space, " ");
+ n = snprintf(p, space, " ");
p += n;
space -= n;
for (channel = 0; channel < pvt->maxch; channel++) {
space -= n;
}
+ space -= n;
+ debugf2("%s\n", mem_buffer);
+ p = mem_buffer;
+ space = PAGE_SIZE;
+
+ n = snprintf(p, space, " ");
+ p += n;
+ for (branch = 0; branch < MAX_BRANCHES; branch++) {
+ n = snprintf(p, space, " branch %d | ", branch);
+ p += n;
+ space -= n;
+ }
+
/* output the last message and free buffer */
debugf2("%s\n", mem_buffer);
kfree(mem_buffer);
debugf2("MIR1: limit= 0x%x WAY1= %u WAY0= %x\n", limit, way1, way0);
/* Get the set of MTR[0-3] regs by each branch */
- for (slot_row = 0; slot_row < NUM_MTRS_PER_BRANCH; slot_row++) {
+ for (slot_row = 0; slot_row < DIMMS_PER_CHANNEL; slot_row++) {
int where = MTR0 + (slot_row * sizeof(u16));
/* Branch 0 set of MTR registers */
/* Read and dump branch 0's MTRs */
debugf2("\nMemory Technology Registers:\n");
debugf2(" Branch 0:\n");
- for (slot_row = 0; slot_row < NUM_MTRS_PER_BRANCH; slot_row++)
+ for (slot_row = 0; slot_row < DIMMS_PER_CHANNEL; slot_row++)
decode_mtr(slot_row, pvt->b0_mtr[slot_row]);
pci_read_config_word(pvt->branch_0, AMBPRESENT_0,
} else {
/* Read and dump branch 1's MTRs */
debugf2(" Branch 1:\n");
- for (slot_row = 0; slot_row < NUM_MTRS_PER_BRANCH; slot_row++)
+ for (slot_row = 0; slot_row < DIMMS_PER_CHANNEL; slot_row++)
decode_mtr(slot_row, pvt->b1_mtr[slot_row]);
pci_read_config_word(pvt->branch_1, AMBPRESENT_0,
}
/*
- * i5400_init_csrows Initialize the 'csrows' table within
+ * i5400_init_dimms Initialize the 'dimms' table within
* the mci control structure with the
* addressing of memory.
*
* 0 success
* 1 no actual memory found on this MC
*/
-static int i5400_init_csrows(struct mem_ctl_info *mci)
+static int i5400_init_dimms(struct mem_ctl_info *mci)
{
struct i5400_pvt *pvt;
- struct csrow_info *p_csrow;
- int empty, channel_count;
- int max_csrows;
+ struct dimm_info *dimm;
+ int ndimms, channel_count;
+ int max_dimms;
int mtr;
- int csrow_megs;
- int channel;
- int csrow;
+ int size_mb;
+ int channel, slot;
pvt = mci->pvt_info;
channel_count = pvt->maxch;
- max_csrows = pvt->maxdimmperch;
+ max_dimms = pvt->maxdimmperch;
- empty = 1; /* Assume NO memory */
+ ndimms = 0;
- for (csrow = 0; csrow < max_csrows; csrow++) {
- p_csrow = &mci->csrows[csrow];
-
- p_csrow->csrow_idx = csrow;
-
- /* use branch 0 for the basis */
- mtr = determine_mtr(pvt, csrow, 0);
-
- /* if no DIMMS on this row, continue */
- if (!MTR_DIMMS_PRESENT(mtr))
- continue;
-
- /* FAKE OUT VALUES, FIXME */
- p_csrow->first_page = 0 + csrow * 20;
- p_csrow->last_page = 9 + csrow * 20;
- p_csrow->page_mask = 0xFFF;
-
- p_csrow->grain = 8;
-
- csrow_megs = 0;
- for (channel = 0; channel < pvt->maxch; channel++)
- csrow_megs += pvt->dimm_info[csrow][channel].megabytes;
-
- p_csrow->nr_pages = csrow_megs << 8;
-
- /* Assume DDR2 for now */
- p_csrow->mtype = MEM_FB_DDR2;
-
- /* ask what device type on this row */
- if (MTR_DRAM_WIDTH(mtr))
- p_csrow->dtype = DEV_X8;
- else
- p_csrow->dtype = DEV_X4;
-
- p_csrow->edac_mode = EDAC_S8ECD8ED;
-
- empty = 0;
+ /*
+ * FIXME: remove pvt->dimm_info[slot][channel] and use the 3
+ * layers here.
+ */
+ for (channel = 0; channel < mci->layers[0].size * mci->layers[1].size;
+ channel++) {
+ for (slot = 0; slot < mci->layers[2].size; slot++) {
+ mtr = determine_mtr(pvt, slot, channel);
+
+ /* if no DIMMS on this slot, continue */
+ if (!MTR_DIMMS_PRESENT(mtr))
+ continue;
+
+ dimm = EDAC_DIMM_PTR(mci->layers, mci->dimms, mci->n_layers,
+ channel / 2, channel % 2, slot);
+
+ size_mb = pvt->dimm_info[slot][channel].megabytes;
+
+ debugf2("%s: dimm%zd (branch %d channel %d slot %d): %d.%03d GB\n",
+ __func__, dimm - mci->dimms,
+ channel / 2, channel % 2, slot,
+ size_mb / 1000, size_mb % 1000);
+
+ dimm->nr_pages = size_mb << 8;
+ dimm->grain = 8;
+ dimm->dtype = MTR_DRAM_WIDTH(mtr) ? DEV_X8 : DEV_X4;
+ dimm->mtype = MEM_FB_DDR2;
+ /*
+ * The eccc mechanism is SDDC (aka SECC), with
+ * is similar to Chipkill.
+ */
+ dimm->edac_mode = MTR_DRAM_WIDTH(mtr) ?
+ EDAC_S8ECD8ED : EDAC_S4ECD4ED;
+ ndimms++;
+ }
}
- return empty;
+ /*
+ * When just one memory is provided, it should be at location (0,0,0).
+ * With such single-DIMM mode, the SDCC algorithm degrades to SECDEC+.
+ */
+ if (ndimms == 1)
+ mci->dimms[0].edac_mode = EDAC_SECDED;
+
+ return (ndimms == 0);
}
/*
{
struct mem_ctl_info *mci;
struct i5400_pvt *pvt;
- int num_channels;
- int num_dimms_per_channel;
- int num_csrows;
+ struct edac_mc_layer layers[3];
if (dev_idx >= ARRAY_SIZE(i5400_devs))
return -EINVAL;
if (PCI_FUNC(pdev->devfn) != 0)
return -ENODEV;
- /* As we don't have a motherboard identification routine to determine
- * actual number of slots/dimms per channel, we thus utilize the
- * resource as specified by the chipset. Thus, we might have
- * have more DIMMs per channel than actually on the mobo, but this
- * allows the driver to support up to the chipset max, without
- * some fancy mobo determination.
+ /*
+ * allocate a new MC control structure
+ *
+ * This drivers uses the DIMM slot as "csrow" and the rest as "channel".
*/
- num_dimms_per_channel = MAX_DIMMS_PER_CHANNEL;
- num_channels = MAX_CHANNELS;
- num_csrows = num_dimms_per_channel;
-
- debugf0("MC: %s(): Number of - Channels= %d DIMMS= %d CSROWS= %d\n",
- __func__, num_channels, num_dimms_per_channel, num_csrows);
-
- /* allocate a new MC control structure */
- mci = edac_mc_alloc(sizeof(*pvt), num_csrows, num_channels, 0);
-
+ layers[0].type = EDAC_MC_LAYER_BRANCH;
+ layers[0].size = MAX_BRANCHES;
+ layers[0].is_virt_csrow = false;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = CHANNELS_PER_BRANCH;
+ layers[1].is_virt_csrow = false;
+ layers[2].type = EDAC_MC_LAYER_SLOT;
+ layers[2].size = DIMMS_PER_CHANNEL;
+ layers[2].is_virt_csrow = true;
+ mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, sizeof(*pvt));
if (mci == NULL)
return -ENOMEM;
pvt = mci->pvt_info;
pvt->system_address = pdev; /* Record this device in our private */
- pvt->maxch = num_channels;
- pvt->maxdimmperch = num_dimms_per_channel;
+ pvt->maxch = MAX_CHANNELS;
+ pvt->maxdimmperch = DIMMS_PER_CHANNEL;
/* 'get' the pci devices we want to reserve for our use */
if (i5400_get_devices(mci, dev_idx))
/* Set the function pointer to an actual operation function */
mci->edac_check = i5400_check_error;
- /* initialize the MC control structure 'csrows' table
+ /* initialize the MC control structure 'dimms' table
* with the mapping and control information */
- if (i5400_init_csrows(mci)) {
+ if (i5400_init_dimms(mci)) {
debugf0("MC: Setting mci->edac_cap to EDAC_FLAG_NONE\n"
- " because i5400_init_csrows() returned nonzero "
+ " because i5400_init_dimms() returned nonzero "
"value\n");
- mci->edac_cap = EDAC_FLAG_NONE; /* no csrows found */
+ mci->edac_cap = EDAC_FLAG_NONE; /* no dimms found */
} else {
debugf1("MC: Enable error reporting now\n");
i5400_enable_error_reporting(mci);
FERR_FAT_FBD, error_reg);
snprintf(pvt->tmp_prt_buffer, PAGE_SIZE,
- "FATAL (Branch=%d DRAM-Bank=%d %s "
- "RAS=%d CAS=%d Err=0x%lx (%s))",
- branch, bank,
- is_wr ? "RDWR" : "RD",
- ras, cas,
- errors, specific);
-
- /* Call the helper to output message */
- edac_mc_handle_fbd_ue(mci, rank, branch << 1,
- (branch << 1) + 1,
- pvt->tmp_prt_buffer);
+ "Bank=%d RAS=%d CAS=%d Err=0x%lx (%s))",
+ bank, ras, cas, errors, specific);
+
+ edac_mc_handle_error(HW_EVENT_ERR_FATAL, mci, 0, 0, 0,
+ branch, -1, rank,
+ is_wr ? "Write error" : "Read error",
+ pvt->tmp_prt_buffer, NULL);
+
}
/* read in the 1st NON-FATAL error register */
/* Form out message */
snprintf(pvt->tmp_prt_buffer, PAGE_SIZE,
- "Corrected error (Branch=%d, Channel %d), "
- " DRAM-Bank=%d %s "
- "RAS=%d CAS=%d, CE Err=0x%lx, Syndrome=0x%08x(%s))",
- branch, channel,
- bank,
- is_wr ? "RDWR" : "RD",
- ras, cas,
- errors, syndrome, specific);
-
- /*
- * Call the helper to output message
- * NOTE: Errors are reported per-branch, and not per-channel
- * Currently, we don't know how to identify the right
- * channel.
- */
- edac_mc_handle_fbd_ce(mci, rank, channel,
- pvt->tmp_prt_buffer);
+ "DRAM-Bank=%d RAS=%d CAS=%d, Err=0x%lx (%s))",
+ bank, ras, cas, errors, specific);
+
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 0, 0,
+ syndrome,
+ branch >> 1, channel % 2, rank,
+ is_wr ? "Write error" : "Read error",
+ pvt->tmp_prt_buffer, NULL);
}
return;
}
static int decode_mtr(struct i7300_pvt *pvt,
int slot, int ch, int branch,
struct i7300_dimm_info *dinfo,
- struct csrow_info *p_csrow,
- u32 *nr_pages)
+ struct dimm_info *dimm)
{
int mtr, ans, addrBits, channel;
addrBits -= 3; /* 8 bits per bytes */
dinfo->megabytes = 1 << addrBits;
- *nr_pages = dinfo->megabytes << 8;
debugf2("\t\tWIDTH: x%d\n", MTR_DRAM_WIDTH(mtr));
debugf2("\t\tNUMCOL: %s\n", numcol_toString[MTR_DIMM_COLS(mtr)]);
debugf2("\t\tSIZE: %d MB\n", dinfo->megabytes);
- p_csrow->grain = 8;
- p_csrow->mtype = MEM_FB_DDR2;
- p_csrow->csrow_idx = slot;
- p_csrow->page_mask = 0;
-
/*
* The type of error detection actually depends of the
* mode of operation. When it is just one single memory chip, at
* See datasheet Sections 7.3.6 to 7.3.8
*/
+ dimm->nr_pages = MiB_TO_PAGES(dinfo->megabytes);
+ dimm->grain = 8;
+ dimm->mtype = MEM_FB_DDR2;
if (IS_SINGLE_MODE(pvt->mc_settings_a)) {
- p_csrow->edac_mode = EDAC_SECDED;
+ dimm->edac_mode = EDAC_SECDED;
debugf2("\t\tECC code is 8-byte-over-32-byte SECDED+ code\n");
} else {
debugf2("\t\tECC code is on Lockstep mode\n");
if (MTR_DRAM_WIDTH(mtr) == 8)
- p_csrow->edac_mode = EDAC_S8ECD8ED;
+ dimm->edac_mode = EDAC_S8ECD8ED;
else
- p_csrow->edac_mode = EDAC_S4ECD4ED;
+ dimm->edac_mode = EDAC_S4ECD4ED;
}
/* ask what device type on this row */
IS_SCRBALGO_ENHANCED(pvt->mc_settings) ?
"enhanced" : "normal");
- p_csrow->dtype = DEV_X8;
+ dimm->dtype = DEV_X8;
} else
- p_csrow->dtype = DEV_X4;
+ dimm->dtype = DEV_X4;
return mtr;
}
{
struct i7300_pvt *pvt;
struct i7300_dimm_info *dinfo;
- struct csrow_info *p_csrow;
int rc = -ENODEV;
int mtr;
int ch, branch, slot, channel;
- u32 last_page = 0, nr_pages;
+ struct dimm_info *dimm;
pvt = mci->pvt_info;
pci_read_config_word(pvt->pci_dev_2x_0_fbd_branch[branch],
where,
&pvt->mtr[slot][branch]);
- for (ch = 0; ch < MAX_BRANCHES; ch++) {
+ for (ch = 0; ch < MAX_CH_PER_BRANCH; ch++) {
int channel = to_channel(ch, branch);
+ dimm = EDAC_DIMM_PTR(mci->layers, mci->dimms,
+ mci->n_layers, branch, ch, slot);
+
dinfo = &pvt->dimm_info[slot][channel];
- p_csrow = &mci->csrows[slot];
mtr = decode_mtr(pvt, slot, ch, branch,
- dinfo, p_csrow, &nr_pages);
+ dinfo, dimm);
+
/* if no DIMMS on this row, continue */
if (!MTR_DIMMS_PRESENT(mtr))
continue;
- /* Update per_csrow memory count */
- p_csrow->nr_pages += nr_pages;
- p_csrow->first_page = last_page;
- last_page += nr_pages;
- p_csrow->last_page = last_page;
-
rc = 0;
+
}
}
}
const struct pci_device_id *id)
{
struct mem_ctl_info *mci;
+ struct edac_mc_layer layers[3];
struct i7300_pvt *pvt;
- int num_channels;
- int num_dimms_per_channel;
- int num_csrows;
int rc;
/* wake up device */
if (PCI_FUNC(pdev->devfn) != 0)
return -ENODEV;
- /* As we don't have a motherboard identification routine to determine
- * actual number of slots/dimms per channel, we thus utilize the
- * resource as specified by the chipset. Thus, we might have
- * have more DIMMs per channel than actually on the mobo, but this
- * allows the driver to support up to the chipset max, without
- * some fancy mobo determination.
- */
- num_dimms_per_channel = MAX_SLOTS;
- num_channels = MAX_CHANNELS;
- num_csrows = MAX_SLOTS * MAX_CHANNELS;
-
- debugf0("MC: %s(): Number of - Channels= %d DIMMS= %d CSROWS= %d\n",
- __func__, num_channels, num_dimms_per_channel, num_csrows);
-
/* allocate a new MC control structure */
- mci = edac_mc_alloc(sizeof(*pvt), num_csrows, num_channels, 0);
-
+ layers[0].type = EDAC_MC_LAYER_BRANCH;
+ layers[0].size = MAX_BRANCHES;
+ layers[0].is_virt_csrow = false;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = MAX_CH_PER_BRANCH;
+ layers[1].is_virt_csrow = true;
+ layers[2].type = EDAC_MC_LAYER_SLOT;
+ layers[2].size = MAX_SLOTS;
+ layers[2].is_virt_csrow = true;
+ mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, sizeof(*pvt));
if (mci == NULL)
return -ENOMEM;
};
struct i7core_channel {
- u32 ranks;
+ bool is_3dimms_present;
+ bool is_single_4rank;
+ bool has_4rank;
u32 dimms;
};
struct i7core_channel channel[NUM_CHANS];
int ce_count_available;
- int csrow_map[NUM_CHANS][MAX_DIMMS];
/* ECC corrected errors counts per udimm */
unsigned long udimm_ce_count[MAX_DIMMS];
/****************************************************************************
Memory check routines
****************************************************************************/
-static struct pci_dev *get_pdev_slot_func(u8 socket, unsigned slot,
- unsigned func)
-{
- struct i7core_dev *i7core_dev = get_i7core_dev(socket);
- int i;
-
- if (!i7core_dev)
- return NULL;
-
- for (i = 0; i < i7core_dev->n_devs; i++) {
- if (!i7core_dev->pdev[i])
- continue;
-
- if (PCI_SLOT(i7core_dev->pdev[i]->devfn) == slot &&
- PCI_FUNC(i7core_dev->pdev[i]->devfn) == func) {
- return i7core_dev->pdev[i];
- }
- }
-
- return NULL;
-}
-
-/**
- * i7core_get_active_channels() - gets the number of channels and csrows
- * @socket: Quick Path Interconnect socket
- * @channels: Number of channels that will be returned
- * @csrows: Number of csrows found
- *
- * Since EDAC core needs to know in advance the number of available channels
- * and csrows, in order to allocate memory for csrows/channels, it is needed
- * to run two similar steps. At the first step, implemented on this function,
- * it checks the number of csrows/channels present at one socket.
- * this is used in order to properly allocate the size of mci components.
- *
- * It should be noticed that none of the current available datasheets explain
- * or even mention how csrows are seen by the memory controller. So, we need
- * to add a fake description for csrows.
- * So, this driver is attributing one DIMM memory for one csrow.
- */
-static int i7core_get_active_channels(const u8 socket, unsigned *channels,
- unsigned *csrows)
-{
- struct pci_dev *pdev = NULL;
- int i, j;
- u32 status, control;
-
- *channels = 0;
- *csrows = 0;
-
- pdev = get_pdev_slot_func(socket, 3, 0);
- if (!pdev) {
- i7core_printk(KERN_ERR, "Couldn't find socket %d fn 3.0!!!\n",
- socket);
- return -ENODEV;
- }
-
- /* Device 3 function 0 reads */
- pci_read_config_dword(pdev, MC_STATUS, &status);
- pci_read_config_dword(pdev, MC_CONTROL, &control);
-
- for (i = 0; i < NUM_CHANS; i++) {
- u32 dimm_dod[3];
- /* Check if the channel is active */
- if (!(control & (1 << (8 + i))))
- continue;
-
- /* Check if the channel is disabled */
- if (status & (1 << i))
- continue;
-
- pdev = get_pdev_slot_func(socket, i + 4, 1);
- if (!pdev) {
- i7core_printk(KERN_ERR, "Couldn't find socket %d "
- "fn %d.%d!!!\n",
- socket, i + 4, 1);
- return -ENODEV;
- }
- /* Devices 4-6 function 1 */
- pci_read_config_dword(pdev,
- MC_DOD_CH_DIMM0, &dimm_dod[0]);
- pci_read_config_dword(pdev,
- MC_DOD_CH_DIMM1, &dimm_dod[1]);
- pci_read_config_dword(pdev,
- MC_DOD_CH_DIMM2, &dimm_dod[2]);
- (*channels)++;
-
- for (j = 0; j < 3; j++) {
- if (!DIMM_PRESENT(dimm_dod[j]))
- continue;
- (*csrows)++;
- }
- }
-
- debugf0("Number of active channels on socket %d: %d\n",
- socket, *channels);
-
- return 0;
-}
-
-static int get_dimm_config(const struct mem_ctl_info *mci)
+static int get_dimm_config(struct mem_ctl_info *mci)
{
struct i7core_pvt *pvt = mci->pvt_info;
- struct csrow_info *csr;
struct pci_dev *pdev;
int i, j;
- int csrow = 0;
- unsigned long last_page = 0;
enum edac_type mode;
enum mem_type mtype;
+ struct dimm_info *dimm;
/* Get data from the MC register, function 0 */
pdev = pvt->pci_mcr[0];
pci_read_config_dword(pvt->pci_ch[i][0],
MC_CHANNEL_DIMM_INIT_PARAMS, &data);
- pvt->channel[i].ranks = (data & QUAD_RANK_PRESENT) ?
- 4 : 2;
+
+ if (data & THREE_DIMMS_PRESENT)
+ pvt->channel[i].is_3dimms_present = true;
+
+ if (data & SINGLE_QUAD_RANK_PRESENT)
+ pvt->channel[i].is_single_4rank = true;
+
+ if (data & QUAD_RANK_PRESENT)
+ pvt->channel[i].has_4rank = true;
if (data & REGISTERED_DIMM)
mtype = MEM_RDDR3;
else
mtype = MEM_DDR3;
-#if 0
- if (data & THREE_DIMMS_PRESENT)
- pvt->channel[i].dimms = 3;
- else if (data & SINGLE_QUAD_RANK_PRESENT)
- pvt->channel[i].dimms = 1;
- else
- pvt->channel[i].dimms = 2;
-#endif
/* Devices 4-6 function 1 */
pci_read_config_dword(pvt->pci_ch[i][1],
MC_DOD_CH_DIMM2, &dimm_dod[2]);
debugf0("Ch%d phy rd%d, wr%d (0x%08x): "
- "%d ranks, %cDIMMs\n",
+ "%s%s%s%cDIMMs\n",
i,
RDLCH(pvt->info.ch_map, i), WRLCH(pvt->info.ch_map, i),
data,
- pvt->channel[i].ranks,
+ pvt->channel[i].is_3dimms_present ? "3DIMMS " : "",
+ pvt->channel[i].is_3dimms_present ? "SINGLE_4R " : "",
+ pvt->channel[i].has_4rank ? "HAS_4R " : "",
(data & REGISTERED_DIMM) ? 'R' : 'U');
for (j = 0; j < 3; j++) {
if (!DIMM_PRESENT(dimm_dod[j]))
continue;
+ dimm = EDAC_DIMM_PTR(mci->layers, mci->dimms, mci->n_layers,
+ i, j, 0);
banks = numbank(MC_DOD_NUMBANK(dimm_dod[j]));
ranks = numrank(MC_DOD_NUMRANK(dimm_dod[j]));
rows = numrow(MC_DOD_NUMROW(dimm_dod[j]));
/* DDR3 has 8 I/O banks */
size = (rows * cols * banks * ranks) >> (20 - 3);
- pvt->channel[i].dimms++;
-
debugf0("\tdimm %d %d Mb offset: %x, "
"bank: %d, rank: %d, row: %#x, col: %#x\n",
j, size,
npages = MiB_TO_PAGES(size);
- csr = &mci->csrows[csrow];
- csr->first_page = last_page + 1;
- last_page += npages;
- csr->last_page = last_page;
- csr->nr_pages = npages;
-
- csr->page_mask = 0;
- csr->grain = 8;
- csr->csrow_idx = csrow;
- csr->nr_channels = 1;
-
- csr->channels[0].chan_idx = i;
- csr->channels[0].ce_count = 0;
-
- pvt->csrow_map[i][j] = csrow;
+ dimm->nr_pages = npages;
switch (banks) {
case 4:
- csr->dtype = DEV_X4;
+ dimm->dtype = DEV_X4;
break;
case 8:
- csr->dtype = DEV_X8;
+ dimm->dtype = DEV_X8;
break;
case 16:
- csr->dtype = DEV_X16;
+ dimm->dtype = DEV_X16;
break;
default:
- csr->dtype = DEV_UNKNOWN;
+ dimm->dtype = DEV_UNKNOWN;
}
- csr->edac_mode = mode;
- csr->mtype = mtype;
- snprintf(csr->channels[0].label,
- sizeof(csr->channels[0].label),
- "CPU#%uChannel#%u_DIMM#%u",
- pvt->i7core_dev->socket, i, j);
-
- csrow++;
+ snprintf(dimm->label, sizeof(dimm->label),
+ "CPU#%uChannel#%u_DIMM#%u",
+ pvt->i7core_dev->socket, i, j);
+ dimm->grain = 8;
+ dimm->edac_mode = mode;
+ dimm->mtype = mtype;
}
pci_read_config_dword(pdev, MC_SAG_CH_0, &value[0]);
/****************************************************************************
Error check routines
****************************************************************************/
-static void i7core_rdimm_update_csrow(struct mem_ctl_info *mci,
+static void i7core_rdimm_update_errcount(struct mem_ctl_info *mci,
const int chan,
const int dimm,
const int add)
{
- char *msg;
- struct i7core_pvt *pvt = mci->pvt_info;
- int row = pvt->csrow_map[chan][dimm], i;
+ int i;
for (i = 0; i < add; i++) {
- msg = kasprintf(GFP_KERNEL, "Corrected error "
- "(Socket=%d channel=%d dimm=%d)",
- pvt->i7core_dev->socket, chan, dimm);
-
- edac_mc_handle_fbd_ce(mci, row, 0, msg);
- kfree (msg);
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 0, 0, 0,
+ chan, dimm, -1, "error", "", NULL);
}
}
/*updated the edac core */
if (add0 != 0)
- i7core_rdimm_update_csrow(mci, chan, 0, add0);
+ i7core_rdimm_update_errcount(mci, chan, 0, add0);
if (add1 != 0)
- i7core_rdimm_update_csrow(mci, chan, 1, add1);
+ i7core_rdimm_update_errcount(mci, chan, 1, add1);
if (add2 != 0)
- i7core_rdimm_update_csrow(mci, chan, 2, add2);
+ i7core_rdimm_update_errcount(mci, chan, 2, add2);
}
const struct mce *m)
{
struct i7core_pvt *pvt = mci->pvt_info;
- char *type, *optype, *err, *msg;
+ char *type, *optype, *err, msg[80];
+ enum hw_event_mc_err_type tp_event;
unsigned long error = m->status & 0x1ff0000l;
+ bool uncorrected_error = m->mcgstatus & 1ll << 61;
+ bool ripv = m->mcgstatus & 1;
u32 optypenum = (m->status >> 4) & 0x07;
u32 core_err_cnt = (m->status >> 38) & 0x7fff;
u32 dimm = (m->misc >> 16) & 0x3;
u32 channel = (m->misc >> 18) & 0x3;
u32 syndrome = m->misc >> 32;
u32 errnum = find_first_bit(&error, 32);
- int csrow;
- if (m->mcgstatus & 1)
- type = "FATAL";
- else
- type = "NON_FATAL";
+ if (uncorrected_error) {
+ if (ripv) {
+ type = "FATAL";
+ tp_event = HW_EVENT_ERR_FATAL;
+ } else {
+ type = "NON_FATAL";
+ tp_event = HW_EVENT_ERR_UNCORRECTED;
+ }
+ } else {
+ type = "CORRECTED";
+ tp_event = HW_EVENT_ERR_CORRECTED;
+ }
switch (optypenum) {
case 0:
err = "unknown";
}
- /* FIXME: should convert addr into bank and rank information */
- msg = kasprintf(GFP_ATOMIC,
- "%s (addr = 0x%08llx, cpu=%d, Dimm=%d, Channel=%d, "
- "syndrome=0x%08x, count=%d, Err=%08llx:%08llx (%s: %s))\n",
- type, (long long) m->addr, m->cpu, dimm, channel,
- syndrome, core_err_cnt, (long long)m->status,
- (long long)m->misc, optype, err);
-
- debugf0("%s", msg);
-
- csrow = pvt->csrow_map[channel][dimm];
+ snprintf(msg, sizeof(msg), "count=%d %s", core_err_cnt, optype);
- /* Call the helper to output message */
- if (m->mcgstatus & 1)
- edac_mc_handle_fbd_ue(mci, csrow, 0,
- 0 /* FIXME: should be channel here */, msg);
- else if (!pvt->is_registered)
- edac_mc_handle_fbd_ce(mci, csrow,
- 0 /* FIXME: should be channel here */, msg);
-
- kfree(msg);
+ /*
+ * Call the helper to output message
+ * FIXME: what to do if core_err_cnt > 1? Currently, it generates
+ * only one event
+ */
+ if (uncorrected_error || !pvt->is_registered)
+ edac_mc_handle_error(tp_event, mci,
+ m->addr >> PAGE_SHIFT,
+ m->addr & ~PAGE_MASK,
+ syndrome,
+ channel, dimm, -1,
+ err, msg, m);
}
/*
{
struct mem_ctl_info *mci;
struct i7core_pvt *pvt;
- int rc, channels, csrows;
-
- /* Check the number of active and not disabled channels */
- rc = i7core_get_active_channels(i7core_dev->socket, &channels, &csrows);
- if (unlikely(rc < 0))
- return rc;
+ int rc;
+ struct edac_mc_layer layers[2];
/* allocate a new MC control structure */
- mci = edac_mc_alloc(sizeof(*pvt), csrows, channels, i7core_dev->socket);
+
+ layers[0].type = EDAC_MC_LAYER_CHANNEL;
+ layers[0].size = NUM_CHANS;
+ layers[0].is_virt_csrow = false;
+ layers[1].type = EDAC_MC_LAYER_SLOT;
+ layers[1].size = MAX_DIMMS;
+ layers[1].is_virt_csrow = true;
+ mci = edac_mc_alloc(i7core_dev->socket, ARRAY_SIZE(layers), layers,
+ sizeof(*pvt));
if (unlikely(!mci))
return -ENOMEM;
* 440GX fix by Jason Uhlenkott <juhlenko@akamai.com>.
*
* Written with reference to 82443BX Host Bridge Datasheet:
- * http://download.intel.com/design/chipsets/datashts/29063301.pdf
+ * http://download.intel.com/design/chipsets/datashts/29063301.pdf
* references to this document given in [].
*
* This module doesn't support the 440LX, but it may be possible to
if (info->eap & I82443BXGX_EAP_OFFSET_SBE) {
error_found = 1;
if (handle_errors)
- edac_mc_handle_ce(mci, page, pageoffset,
- /* 440BX/GX don't make syndrome information
- * available */
- 0, edac_mc_find_csrow_by_page(mci, page), 0,
- mci->ctl_name);
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ page, pageoffset, 0,
+ edac_mc_find_csrow_by_page(mci, page),
+ 0, -1, mci->ctl_name, "", NULL);
}
if (info->eap & I82443BXGX_EAP_OFFSET_MBE) {
error_found = 1;
if (handle_errors)
- edac_mc_handle_ue(mci, page, pageoffset,
- edac_mc_find_csrow_by_page(mci, page),
- mci->ctl_name);
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ page, pageoffset, 0,
+ edac_mc_find_csrow_by_page(mci, page),
+ 0, -1, mci->ctl_name, "", NULL);
}
return error_found;
enum mem_type mtype)
{
struct csrow_info *csrow;
+ struct dimm_info *dimm;
int index;
u8 drbar, dramc;
u32 row_base, row_high_limit, row_high_limit_last;
row_high_limit_last = 0;
for (index = 0; index < mci->nr_csrows; index++) {
csrow = &mci->csrows[index];
+ dimm = csrow->channels[0].dimm;
+
pci_read_config_byte(pdev, I82443BXGX_DRB + index, &drbar);
debugf1("MC%d: %s: %s() Row=%d DRB = %#0x\n",
mci->mc_idx, __FILE__, __func__, index, drbar);
row_base = row_high_limit_last;
csrow->first_page = row_base >> PAGE_SHIFT;
csrow->last_page = (row_high_limit >> PAGE_SHIFT) - 1;
- csrow->nr_pages = csrow->last_page - csrow->first_page + 1;
+ dimm->nr_pages = csrow->last_page - csrow->first_page + 1;
/* EAP reports in 4kilobyte granularity [61] */
- csrow->grain = 1 << 12;
- csrow->mtype = mtype;
+ dimm->grain = 1 << 12;
+ dimm->mtype = mtype;
/* I don't think 440BX can tell you device type? FIXME? */
- csrow->dtype = DEV_UNKNOWN;
+ dimm->dtype = DEV_UNKNOWN;
/* Mode is global to all rows on 440BX */
- csrow->edac_mode = edac_mode;
+ dimm->edac_mode = edac_mode;
row_high_limit_last = row_high_limit;
}
}
static int i82443bxgx_edacmc_probe1(struct pci_dev *pdev, int dev_idx)
{
struct mem_ctl_info *mci;
+ struct edac_mc_layer layers[2];
u8 dramc;
u32 nbxcfg, ecc_mode;
enum mem_type mtype;
if (pci_read_config_dword(pdev, I82443BXGX_NBXCFG, &nbxcfg))
return -EIO;
- mci = edac_mc_alloc(0, I82443BXGX_NR_CSROWS, I82443BXGX_NR_CHANS, 0);
-
+ layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
+ layers[0].size = I82443BXGX_NR_CSROWS;
+ layers[0].is_virt_csrow = true;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = I82443BXGX_NR_CHANS;
+ layers[1].is_virt_csrow = false;
+ mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, 0);
if (mci == NULL)
return -ENOMEM;
struct i82860_error_info *info,
int handle_errors)
{
+ struct dimm_info *dimm;
int row;
if (!(info->errsts2 & 0x0003))
return 1;
if ((info->errsts ^ info->errsts2) & 0x0003) {
- edac_mc_handle_ce_no_info(mci, "UE overwrote CE");
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 0, 0, 0,
+ -1, -1, -1, "UE overwrote CE", "", NULL);
info->errsts = info->errsts2;
}
info->eap >>= PAGE_SHIFT;
row = edac_mc_find_csrow_by_page(mci, info->eap);
+ dimm = mci->csrows[row].channels[0].dimm;
if (info->errsts & 0x0002)
- edac_mc_handle_ue(mci, info->eap, 0, row, "i82860 UE");
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ info->eap, 0, 0,
+ dimm->location[0], dimm->location[1], -1,
+ "i82860 UE", "", NULL);
else
- edac_mc_handle_ce(mci, info->eap, 0, info->derrsyn, row, 0,
- "i82860 UE");
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ info->eap, 0, info->derrsyn,
+ dimm->location[0], dimm->location[1], -1,
+ "i82860 CE", "", NULL);
return 1;
}
u16 value;
u32 cumul_size;
struct csrow_info *csrow;
+ struct dimm_info *dimm;
int index;
pci_read_config_word(pdev, I82860_MCHCFG, &mchcfg_ddim);
*/
for (index = 0; index < mci->nr_csrows; index++) {
csrow = &mci->csrows[index];
+ dimm = csrow->channels[0].dimm;
+
pci_read_config_word(pdev, I82860_GBA + index * 2, &value);
cumul_size = (value & I82860_GBA_MASK) <<
(I82860_GBA_SHIFT - PAGE_SHIFT);
csrow->first_page = last_cumul_size;
csrow->last_page = cumul_size - 1;
- csrow->nr_pages = cumul_size - last_cumul_size;
+ dimm->nr_pages = cumul_size - last_cumul_size;
last_cumul_size = cumul_size;
- csrow->grain = 1 << 12; /* I82860_EAP has 4KiB reolution */
- csrow->mtype = MEM_RMBS;
- csrow->dtype = DEV_UNKNOWN;
- csrow->edac_mode = mchcfg_ddim ? EDAC_SECDED : EDAC_NONE;
+ dimm->grain = 1 << 12; /* I82860_EAP has 4KiB reolution */
+ dimm->mtype = MEM_RMBS;
+ dimm->dtype = DEV_UNKNOWN;
+ dimm->edac_mode = mchcfg_ddim ? EDAC_SECDED : EDAC_NONE;
}
}
static int i82860_probe1(struct pci_dev *pdev, int dev_idx)
{
struct mem_ctl_info *mci;
+ struct edac_mc_layer layers[2];
struct i82860_error_info discard;
- /* RDRAM has channels but these don't map onto the abstractions that
- edac uses.
- The device groups from the GRA registers seem to map reasonably
- well onto the notion of a chip select row.
- There are 16 GRA registers and since the name is associated with
- the channel and the GRA registers map to physical devices so we are
- going to make 1 channel for group.
+ /*
+ * RDRAM has channels but these don't map onto the csrow abstraction.
+ * According with the datasheet, there are 2 Rambus channels, supporting
+ * up to 16 direct RDRAM devices.
+ * The device groups from the GRA registers seem to map reasonably
+ * well onto the notion of a chip select row.
+ * There are 16 GRA registers and since the name is associated with
+ * the channel and the GRA registers map to physical devices so we are
+ * going to make 1 channel for group.
*/
- mci = edac_mc_alloc(0, 16, 1, 0);
-
+ layers[0].type = EDAC_MC_LAYER_CHANNEL;
+ layers[0].size = 2;
+ layers[0].is_virt_csrow = true;
+ layers[1].type = EDAC_MC_LAYER_SLOT;
+ layers[1].size = 8;
+ layers[1].is_virt_csrow = true;
+ mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, 0);
if (!mci)
return -ENOMEM;
#endif /* PCI_DEVICE_ID_INTEL_82875_6 */
/* four csrows in dual channel, eight in single channel */
-#define I82875P_NR_CSROWS(nr_chans) (8/(nr_chans))
+#define I82875P_NR_DIMMS 8
+#define I82875P_NR_CSROWS(nr_chans) (I82875P_NR_DIMMS / (nr_chans))
/* Intel 82875p register addresses - device 0 function 0 - DRAM Controller */
#define I82875P_EAP 0x58 /* Error Address Pointer (32b)
return 1;
if ((info->errsts ^ info->errsts2) & 0x0081) {
- edac_mc_handle_ce_no_info(mci, "UE overwrote CE");
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 0, 0, 0,
+ -1, -1, -1,
+ "UE overwrote CE", "", NULL);
info->errsts = info->errsts2;
}
row = edac_mc_find_csrow_by_page(mci, info->eap);
if (info->errsts & 0x0080)
- edac_mc_handle_ue(mci, info->eap, 0, row, "i82875p UE");
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ info->eap, 0, 0,
+ row, -1, -1,
+ "i82875p UE", "", NULL);
else
- edac_mc_handle_ce(mci, info->eap, 0, info->derrsyn, row,
- multi_chan ? (info->des & 0x1) : 0,
- "i82875p CE");
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ info->eap, 0, info->derrsyn,
+ row, multi_chan ? (info->des & 0x1) : 0,
+ -1, "i82875p CE", "", NULL);
return 1;
}
void __iomem * ovrfl_window, u32 drc)
{
struct csrow_info *csrow;
+ struct dimm_info *dimm;
+ unsigned nr_chans = dual_channel_active(drc) + 1;
unsigned long last_cumul_size;
u8 value;
u32 drc_ddim; /* DRAM Data Integrity Mode 0=none,2=edac */
- u32 cumul_size;
- int index;
+ u32 cumul_size, nr_pages;
+ int index, j;
drc_ddim = (drc >> 18) & 0x1;
last_cumul_size = 0;
csrow->first_page = last_cumul_size;
csrow->last_page = cumul_size - 1;
- csrow->nr_pages = cumul_size - last_cumul_size;
+ nr_pages = cumul_size - last_cumul_size;
last_cumul_size = cumul_size;
- csrow->grain = 1 << 12; /* I82875P_EAP has 4KiB reolution */
- csrow->mtype = MEM_DDR;
- csrow->dtype = DEV_UNKNOWN;
- csrow->edac_mode = drc_ddim ? EDAC_SECDED : EDAC_NONE;
+
+ for (j = 0; j < nr_chans; j++) {
+ dimm = csrow->channels[j].dimm;
+
+ dimm->nr_pages = nr_pages / nr_chans;
+ dimm->grain = 1 << 12; /* I82875P_EAP has 4KiB reolution */
+ dimm->mtype = MEM_DDR;
+ dimm->dtype = DEV_UNKNOWN;
+ dimm->edac_mode = drc_ddim ? EDAC_SECDED : EDAC_NONE;
+ }
}
}
{
int rc = -ENODEV;
struct mem_ctl_info *mci;
+ struct edac_mc_layer layers[2];
struct i82875p_pvt *pvt;
struct pci_dev *ovrfl_pdev;
void __iomem *ovrfl_window;
return -ENODEV;
drc = readl(ovrfl_window + I82875P_DRC);
nr_chans = dual_channel_active(drc) + 1;
- mci = edac_mc_alloc(sizeof(*pvt), I82875P_NR_CSROWS(nr_chans),
- nr_chans, 0);
+ layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
+ layers[0].size = I82875P_NR_CSROWS(nr_chans);
+ layers[0].is_virt_csrow = true;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = nr_chans;
+ layers[1].is_virt_csrow = false;
+ mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, sizeof(*pvt));
if (!mci) {
rc = -ENOMEM;
goto fail0;
#define PCI_DEVICE_ID_INTEL_82975_0 0x277c
#endif /* PCI_DEVICE_ID_INTEL_82975_0 */
-#define I82975X_NR_CSROWS(nr_chans) (8/(nr_chans))
+#define I82975X_NR_DIMMS 8
+#define I82975X_NR_CSROWS(nr_chans) (I82975X_NR_DIMMS / (nr_chans))
/* Intel 82975X register addresses - device 0 function 0 - DRAM Controller */
#define I82975X_EAP 0x58 /* Dram Error Address Pointer (32b)
return 1;
if ((info->errsts ^ info->errsts2) & 0x0003) {
- edac_mc_handle_ce_no_info(mci, "UE overwrote CE");
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 0, 0, 0,
+ -1, -1, -1, "UE overwrote CE", "", NULL);
info->errsts = info->errsts2;
}
chan = (mci->csrows[row].nr_channels == 1) ? 0 : info->eap & 1;
offst = info->eap
& ((1 << PAGE_SHIFT) -
- (1 << mci->csrows[row].grain));
+ (1 << mci->csrows[row].channels[chan].dimm->grain));
if (info->errsts & 0x0002)
- edac_mc_handle_ue(mci, page, offst , row, "i82975x UE");
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ page, offst, 0,
+ row, -1, -1,
+ "i82975x UE", "", NULL);
else
- edac_mc_handle_ce(mci, page, offst, info->derrsyn, row,
- chan, "i82975x CE");
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ page, offst, info->derrsyn,
+ row, chan ? chan : 0, -1,
+ "i82975x CE", "", NULL);
return 1;
}
struct csrow_info *csrow;
unsigned long last_cumul_size;
u8 value;
- u32 cumul_size;
+ u32 cumul_size, nr_pages;
int index, chan;
+ struct dimm_info *dimm;
+ enum dev_type dtype;
last_cumul_size = 0;
debugf3("%s(): (%d) cumul_size 0x%x\n", __func__, index,
cumul_size);
+ nr_pages = cumul_size - last_cumul_size;
+ if (!nr_pages)
+ continue;
+
/*
* Initialise dram labels
* index values:
* [0-7] for single-channel; i.e. csrow->nr_channels = 1
* [0-3] for dual-channel; i.e. csrow->nr_channels = 2
*/
- for (chan = 0; chan < csrow->nr_channels; chan++)
- strncpy(csrow->channels[chan].label,
+ dtype = i82975x_dram_type(mch_window, index);
+ for (chan = 0; chan < csrow->nr_channels; chan++) {
+ dimm = mci->csrows[index].channels[chan].dimm;
+
+ dimm->nr_pages = nr_pages / csrow->nr_channels;
+ strncpy(csrow->channels[chan].dimm->label,
labels[(index >> 1) + (chan * 2)],
EDAC_MC_LABEL_LEN);
-
- if (cumul_size == last_cumul_size)
- continue; /* not populated */
+ dimm->grain = 1 << 7; /* 128Byte cache-line resolution */
+ dimm->dtype = i82975x_dram_type(mch_window, index);
+ dimm->mtype = MEM_DDR2; /* I82975x supports only DDR2 */
+ dimm->edac_mode = EDAC_SECDED; /* only supported */
+ }
csrow->first_page = last_cumul_size;
csrow->last_page = cumul_size - 1;
- csrow->nr_pages = cumul_size - last_cumul_size;
last_cumul_size = cumul_size;
- csrow->grain = 1 << 7; /* 128Byte cache-line resolution */
- csrow->mtype = MEM_DDR2; /* I82975x supports only DDR2 */
- csrow->dtype = i82975x_dram_type(mch_window, index);
- csrow->edac_mode = EDAC_SECDED; /* only supported */
}
}
{
int rc = -ENODEV;
struct mem_ctl_info *mci;
+ struct edac_mc_layer layers[2];
struct i82975x_pvt *pvt;
void __iomem *mch_window;
u32 mchbar;
chans = dual_channel_active(mch_window) + 1;
/* assuming only one controller, index thus is 0 */
- mci = edac_mc_alloc(sizeof(*pvt), I82975X_NR_CSROWS(chans),
- chans, 0);
+ layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
+ layers[0].size = I82975X_NR_DIMMS;
+ layers[0].is_virt_csrow = true;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = I82975X_NR_CSROWS(chans);
+ layers[1].is_virt_csrow = false;
+ mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, sizeof(*pvt));
if (!mci) {
rc = -ENOMEM;
goto fail1;
#include <asm/mce.h>
-#define BIT_64(n) (U64_C(1) << (n))
-
#define EC(x) ((x) & 0xffff)
#define XEC(x, mask) (((x) >> 16) & mask)
mpc85xx_mc_printk(mci, KERN_ERR, "PFN out of range!\n");
if (err_detect & DDR_EDE_SBE)
- edac_mc_handle_ce(mci, pfn, err_addr & ~PAGE_MASK,
- syndrome, row_index, 0, mci->ctl_name);
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ pfn, err_addr & ~PAGE_MASK, syndrome,
+ row_index, 0, -1,
+ mci->ctl_name, "", NULL);
if (err_detect & DDR_EDE_MBE)
- edac_mc_handle_ue(mci, pfn, err_addr & ~PAGE_MASK,
- row_index, mci->ctl_name);
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ pfn, err_addr & ~PAGE_MASK, syndrome,
+ row_index, 0, -1,
+ mci->ctl_name, "", NULL);
out_be32(pdata->mc_vbase + MPC85XX_MC_ERR_DETECT, err_detect);
}
{
struct mpc85xx_mc_pdata *pdata = mci->pvt_info;
struct csrow_info *csrow;
+ struct dimm_info *dimm;
u32 sdram_ctl;
u32 sdtype;
enum mem_type mtype;
u32 end;
csrow = &mci->csrows[index];
+ dimm = csrow->channels[0].dimm;
+
cs_bnds = in_be32(pdata->mc_vbase + MPC85XX_MC_CS_BNDS_0 +
(index * MPC85XX_MC_CS_BNDS_OFS));
csrow->first_page = start;
csrow->last_page = end;
- csrow->nr_pages = end + 1 - start;
- csrow->grain = 8;
- csrow->mtype = mtype;
- csrow->dtype = DEV_UNKNOWN;
+
+ dimm->nr_pages = end + 1 - start;
+ dimm->grain = 8;
+ dimm->mtype = mtype;
+ dimm->dtype = DEV_UNKNOWN;
if (sdram_ctl & DSC_X32_EN)
- csrow->dtype = DEV_X32;
- csrow->edac_mode = EDAC_SECDED;
+ dimm->dtype = DEV_X32;
+ dimm->edac_mode = EDAC_SECDED;
}
}
static int __devinit mpc85xx_mc_err_probe(struct platform_device *op)
{
struct mem_ctl_info *mci;
+ struct edac_mc_layer layers[2];
struct mpc85xx_mc_pdata *pdata;
struct resource r;
u32 sdram_ctl;
if (!devres_open_group(&op->dev, mpc85xx_mc_err_probe, GFP_KERNEL))
return -ENOMEM;
- mci = edac_mc_alloc(sizeof(*pdata), 4, 1, edac_mc_idx);
+ layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
+ layers[0].size = 4;
+ layers[0].is_virt_csrow = true;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = 1;
+ layers[1].is_virt_csrow = false;
+ mci = edac_mc_alloc(edac_mc_idx, ARRAY_SIZE(layers), sizeof(*pdata));
if (!mci) {
devres_release_group(&op->dev, mpc85xx_mc_err_probe);
return -ENOMEM;
/* first bit clear in ECC Err Reg, 1 bit error, correctable by HW */
if (!(reg & 0x1))
- edac_mc_handle_ce(mci, err_addr >> PAGE_SHIFT,
- err_addr & PAGE_MASK, syndrome, 0, 0,
- mci->ctl_name);
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ err_addr >> PAGE_SHIFT,
+ err_addr & PAGE_MASK, syndrome,
+ 0, 0, -1,
+ mci->ctl_name, "", NULL);
else /* 2 bit error, UE */
- edac_mc_handle_ue(mci, err_addr >> PAGE_SHIFT,
- err_addr & PAGE_MASK, 0, mci->ctl_name);
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ err_addr >> PAGE_SHIFT,
+ err_addr & PAGE_MASK, 0,
+ 0, 0, -1,
+ mci->ctl_name, "", NULL);
/* clear the error */
out_le32(pdata->mc_vbase + MV64X60_SDRAM_ERR_ADDR, 0);
struct mv64x60_mc_pdata *pdata)
{
struct csrow_info *csrow;
+ struct dimm_info *dimm;
+
u32 devtype;
u32 ctl;
ctl = in_le32(pdata->mc_vbase + MV64X60_SDRAM_CONFIG);
csrow = &mci->csrows[0];
- csrow->first_page = 0;
- csrow->nr_pages = pdata->total_mem >> PAGE_SHIFT;
- csrow->last_page = csrow->first_page + csrow->nr_pages - 1;
- csrow->grain = 8;
+ dimm = csrow->channels[0].dimm;
+
+ dimm->nr_pages = pdata->total_mem >> PAGE_SHIFT;
+ dimm->grain = 8;
- csrow->mtype = (ctl & MV64X60_SDRAM_REGISTERED) ? MEM_RDDR : MEM_DDR;
+ dimm->mtype = (ctl & MV64X60_SDRAM_REGISTERED) ? MEM_RDDR : MEM_DDR;
devtype = (ctl >> 20) & 0x3;
switch (devtype) {
case 0x0:
- csrow->dtype = DEV_X32;
+ dimm->dtype = DEV_X32;
break;
case 0x2: /* could be X8 too, but no way to tell */
- csrow->dtype = DEV_X16;
+ dimm->dtype = DEV_X16;
break;
case 0x3:
- csrow->dtype = DEV_X4;
+ dimm->dtype = DEV_X4;
break;
default:
- csrow->dtype = DEV_UNKNOWN;
+ dimm->dtype = DEV_UNKNOWN;
break;
}
- csrow->edac_mode = EDAC_SECDED;
+ dimm->edac_mode = EDAC_SECDED;
}
static int __devinit mv64x60_mc_err_probe(struct platform_device *pdev)
{
struct mem_ctl_info *mci;
+ struct edac_mc_layer layers[2];
struct mv64x60_mc_pdata *pdata;
struct resource *r;
u32 ctl;
if (!devres_open_group(&pdev->dev, mv64x60_mc_err_probe, GFP_KERNEL))
return -ENOMEM;
- mci = edac_mc_alloc(sizeof(struct mv64x60_mc_pdata), 1, 1, edac_mc_idx);
+ layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
+ layers[0].size = 1;
+ layers[0].is_virt_csrow = true;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = 1;
+ layers[1].is_virt_csrow = false;
+ mci = edac_mc_alloc(edac_mc_idx, ARRAY_SIZE(layers), layers,
+ sizeof(struct mv64x60_mc_pdata));
if (!mci) {
printk(KERN_ERR "%s: No memory for CPU err\n", __func__);
devres_release_group(&pdev->dev, mv64x60_mc_err_probe);
/* uncorrectable/multi-bit errors */
if (errsta & (MCDEBUG_ERRSTA_MBE_STATUS |
MCDEBUG_ERRSTA_RFL_STATUS)) {
- edac_mc_handle_ue(mci, mci->csrows[cs].first_page, 0,
- cs, mci->ctl_name);
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ mci->csrows[cs].first_page, 0, 0,
+ cs, 0, -1, mci->ctl_name, "", NULL);
}
/* correctable/single-bit errors */
- if (errsta & MCDEBUG_ERRSTA_SBE_STATUS) {
- edac_mc_handle_ce(mci, mci->csrows[cs].first_page, 0,
- 0, cs, 0, mci->ctl_name);
- }
+ if (errsta & MCDEBUG_ERRSTA_SBE_STATUS)
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ mci->csrows[cs].first_page, 0, 0,
+ cs, 0, -1, mci->ctl_name, "", NULL);
}
static void pasemi_edac_check(struct mem_ctl_info *mci)
enum edac_type edac_mode)
{
struct csrow_info *csrow;
+ struct dimm_info *dimm;
u32 rankcfg;
int index;
for (index = 0; index < mci->nr_csrows; index++) {
csrow = &mci->csrows[index];
+ dimm = csrow->channels[0].dimm;
pci_read_config_dword(pdev,
MCDRAM_RANKCFG + (index * 12),
switch ((rankcfg & MCDRAM_RANKCFG_TYPE_SIZE_M) >>
MCDRAM_RANKCFG_TYPE_SIZE_S) {
case 0:
- csrow->nr_pages = 128 << (20 - PAGE_SHIFT);
+ dimm->nr_pages = 128 << (20 - PAGE_SHIFT);
break;
case 1:
- csrow->nr_pages = 256 << (20 - PAGE_SHIFT);
+ dimm->nr_pages = 256 << (20 - PAGE_SHIFT);
break;
case 2:
case 3:
- csrow->nr_pages = 512 << (20 - PAGE_SHIFT);
+ dimm->nr_pages = 512 << (20 - PAGE_SHIFT);
break;
case 4:
- csrow->nr_pages = 1024 << (20 - PAGE_SHIFT);
+ dimm->nr_pages = 1024 << (20 - PAGE_SHIFT);
break;
case 5:
- csrow->nr_pages = 2048 << (20 - PAGE_SHIFT);
+ dimm->nr_pages = 2048 << (20 - PAGE_SHIFT);
break;
default:
edac_mc_printk(mci, KERN_ERR,
}
csrow->first_page = last_page_in_mmc;
- csrow->last_page = csrow->first_page + csrow->nr_pages - 1;
- last_page_in_mmc += csrow->nr_pages;
+ csrow->last_page = csrow->first_page + dimm->nr_pages - 1;
+ last_page_in_mmc += dimm->nr_pages;
csrow->page_mask = 0;
- csrow->grain = PASEMI_EDAC_ERROR_GRAIN;
- csrow->mtype = MEM_DDR;
- csrow->dtype = DEV_UNKNOWN;
- csrow->edac_mode = edac_mode;
+ dimm->grain = PASEMI_EDAC_ERROR_GRAIN;
+ dimm->mtype = MEM_DDR;
+ dimm->dtype = DEV_UNKNOWN;
+ dimm->edac_mode = edac_mode;
}
return 0;
}
const struct pci_device_id *ent)
{
struct mem_ctl_info *mci = NULL;
+ struct edac_mc_layer layers[2];
u32 errctl1, errcor, scrub, mcen;
pci_read_config_dword(pdev, MCCFG_MCEN, &mcen);
MCDEBUG_ERRCTL1_RFL_LOG_EN;
pci_write_config_dword(pdev, MCDEBUG_ERRCTL1, errctl1);
- mci = edac_mc_alloc(0, PASEMI_EDAC_NR_CSROWS, PASEMI_EDAC_NR_CHANS,
- system_mmc_id++);
-
+ layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
+ layers[0].size = PASEMI_EDAC_NR_CSROWS;
+ layers[0].is_virt_csrow = true;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = PASEMI_EDAC_NR_CHANS;
+ layers[1].is_virt_csrow = false;
+ mci = edac_mc_alloc(system_mmc_id++, ARRAY_SIZE(layers), layers,
+ 0);
if (mci == NULL)
return -ENOMEM;
for (row = 0; row < mci->nr_csrows; row++)
if (ppc4xx_edac_check_bank_error(status, row))
- edac_mc_handle_ce_no_info(mci, message);
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ 0, 0, 0,
+ row, 0, -1,
+ message, "", NULL);
}
/**
for (row = 0; row < mci->nr_csrows; row++)
if (ppc4xx_edac_check_bank_error(status, row))
- edac_mc_handle_ue(mci, page, offset, row, message);
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ page, offset, 0,
+ row, 0, -1,
+ message, "", NULL);
}
/**
enum mem_type mtype;
enum dev_type dtype;
enum edac_type edac_mode;
- int row;
- u32 mbxcf, size;
- static u32 ppc4xx_last_page;
+ int row, j;
+ u32 mbxcf, size, nr_pages;
/* Establish the memory type and width */
case SDRAM_MBCF_SZ_2GB:
case SDRAM_MBCF_SZ_4GB:
case SDRAM_MBCF_SZ_8GB:
- csi->nr_pages = SDRAM_MBCF_SZ_TO_PAGES(size);
+ nr_pages = SDRAM_MBCF_SZ_TO_PAGES(size);
break;
default:
ppc4xx_edac_mc_printk(KERN_ERR, mci,
goto done;
}
- csi->first_page = ppc4xx_last_page;
- csi->last_page = csi->first_page + csi->nr_pages - 1;
- csi->page_mask = 0;
-
/*
* It's unclear exactly what grain should be set to
* here. The SDRAM_ECCES register allows resolution of
* possible values would be the PLB width (16), the
* page size (PAGE_SIZE) or the memory width (2 or 4).
*/
+ for (j = 0; j < csi->nr_channels; j++) {
+ struct dimm_info *dimm = csi->channels[j].dimm;
- csi->grain = 1;
-
- csi->mtype = mtype;
- csi->dtype = dtype;
+ dimm->nr_pages = nr_pages / csi->nr_channels;
+ dimm->grain = 1;
- csi->edac_mode = edac_mode;
+ dimm->mtype = mtype;
+ dimm->dtype = dtype;
- ppc4xx_last_page += csi->nr_pages;
+ dimm->edac_mode = edac_mode;
+ }
}
done:
dcr_host_t dcr_host;
const struct device_node *np = op->dev.of_node;
struct mem_ctl_info *mci = NULL;
+ struct edac_mc_layer layers[2];
static int ppc4xx_edac_instance;
/*
* controller instance and perform the appropriate
* initialization.
*/
-
- mci = edac_mc_alloc(sizeof(struct ppc4xx_edac_pdata),
- ppc4xx_edac_nr_csrows,
- ppc4xx_edac_nr_chans,
- ppc4xx_edac_instance);
-
+ layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
+ layers[0].size = ppc4xx_edac_nr_csrows;
+ layers[0].is_virt_csrow = true;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = ppc4xx_edac_nr_chans;
+ layers[1].is_virt_csrow = false;
+ mci = edac_mc_alloc(ppc4xx_edac_instance, ARRAY_SIZE(layers), layers,
+ sizeof(struct ppc4xx_edac_pdata));
if (mci == NULL) {
ppc4xx_edac_printk(KERN_ERR, "%s: "
"Failed to allocate EDAC MC instance!\n",
error_found = 1;
if (handle_errors)
- edac_mc_handle_ce(mci, page, 0, /* not avail */
- syndrome,
- edac_mc_find_csrow_by_page(mci, page),
- 0, mci->ctl_name);
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ page, 0, syndrome,
+ edac_mc_find_csrow_by_page(mci, page),
+ 0, -1,
+ mci->ctl_name, "", NULL);
}
if (info->eapr & BIT(1)) { /* UE? */
if (handle_errors)
/* 82600 doesn't give enough info */
- edac_mc_handle_ue(mci, page, 0,
- edac_mc_find_csrow_by_page(mci, page),
- mci->ctl_name);
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ page, 0, 0,
+ edac_mc_find_csrow_by_page(mci, page),
+ 0, -1,
+ mci->ctl_name, "", NULL);
}
return error_found;
u8 dramcr)
{
struct csrow_info *csrow;
+ struct dimm_info *dimm;
int index;
u8 drbar; /* SDRAM Row Boundary Address Register */
u32 row_high_limit, row_high_limit_last;
for (index = 0; index < mci->nr_csrows; index++) {
csrow = &mci->csrows[index];
+ dimm = csrow->channels[0].dimm;
/* find the DRAM Chip Select Base address and mask */
pci_read_config_byte(pdev, R82600_DRBA + index, &drbar);
csrow->first_page = row_base >> PAGE_SHIFT;
csrow->last_page = (row_high_limit >> PAGE_SHIFT) - 1;
- csrow->nr_pages = csrow->last_page - csrow->first_page + 1;
+
+ dimm->nr_pages = csrow->last_page - csrow->first_page + 1;
/* Error address is top 19 bits - so granularity is *
* 14 bits */
- csrow->grain = 1 << 14;
- csrow->mtype = reg_sdram ? MEM_RDDR : MEM_DDR;
+ dimm->grain = 1 << 14;
+ dimm->mtype = reg_sdram ? MEM_RDDR : MEM_DDR;
/* FIXME - check that this is unknowable with this chipset */
- csrow->dtype = DEV_UNKNOWN;
+ dimm->dtype = DEV_UNKNOWN;
/* Mode is global on 82600 */
- csrow->edac_mode = ecc_on ? EDAC_SECDED : EDAC_NONE;
+ dimm->edac_mode = ecc_on ? EDAC_SECDED : EDAC_NONE;
row_high_limit_last = row_high_limit;
}
}
static int r82600_probe1(struct pci_dev *pdev, int dev_idx)
{
struct mem_ctl_info *mci;
+ struct edac_mc_layer layers[2];
u8 dramcr;
u32 eapr;
u32 scrub_disabled;
debugf2("%s(): sdram refresh rate = %#0x\n", __func__,
sdram_refresh_rate);
debugf2("%s(): DRAMC register = %#0x\n", __func__, dramcr);
- mci = edac_mc_alloc(0, R82600_NR_CSROWS, R82600_NR_CHANS, 0);
-
+ layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
+ layers[0].size = R82600_NR_CSROWS;
+ layers[0].is_virt_csrow = true;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = R82600_NR_CHANS;
+ layers[1].is_virt_csrow = false;
+ mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, 0);
if (mci == NULL)
return -ENOMEM;
struct sbridge_info info;
struct sbridge_channel channel[NUM_CHANNELS];
- int csrow_map[NUM_CHANNELS][MAX_DIMMS];
-
/* Memory type detection */
bool is_mirrored, is_lockstep, is_close_pg;
}
/**
- * sbridge_get_active_channels() - gets the number of channels and csrows
+ * check_if_ecc_is_active() - Checks if ECC is active
* bus: Device bus
- * @channels: Number of channels that will be returned
- * @csrows: Number of csrows found
- *
- * Since EDAC core needs to know in advance the number of available channels
- * and csrows, in order to allocate memory for csrows/channels, it is needed
- * to run two similar steps. At the first step, implemented on this function,
- * it checks the number of csrows/channels present at one socket, identified
- * by the associated PCI bus.
- * this is used in order to properly allocate the size of mci components.
- * Note: one csrow is one dimm.
*/
-static int sbridge_get_active_channels(const u8 bus, unsigned *channels,
- unsigned *csrows)
+static int check_if_ecc_is_active(const u8 bus)
{
struct pci_dev *pdev = NULL;
- int i, j;
u32 mcmtr;
- *channels = 0;
- *csrows = 0;
-
pdev = get_pdev_slot_func(bus, 15, 0);
if (!pdev) {
sbridge_printk(KERN_ERR, "Couldn't find PCI device "
sbridge_printk(KERN_ERR, "ECC is disabled. Aborting\n");
return -ENODEV;
}
-
- for (i = 0; i < NUM_CHANNELS; i++) {
- u32 mtr;
-
- /* Device 15 functions 2 - 5 */
- pdev = get_pdev_slot_func(bus, 15, 2 + i);
- if (!pdev) {
- sbridge_printk(KERN_ERR, "Couldn't find PCI device "
- "%2x.%02d.%d!!!\n",
- bus, 15, 2 + i);
- return -ENODEV;
- }
- (*channels)++;
-
- for (j = 0; j < ARRAY_SIZE(mtr_regs); j++) {
- pci_read_config_dword(pdev, mtr_regs[j], &mtr);
- debugf1("Bus#%02x channel #%d MTR%d = %x\n", bus, i, j, mtr);
- if (IS_DIMM_PRESENT(mtr))
- (*csrows)++;
- }
- }
-
- debugf0("Number of active channels: %d, number of active dimms: %d\n",
- *channels, *csrows);
-
return 0;
}
-static int get_dimm_config(const struct mem_ctl_info *mci)
+static int get_dimm_config(struct mem_ctl_info *mci)
{
struct sbridge_pvt *pvt = mci->pvt_info;
- struct csrow_info *csr;
+ struct dimm_info *dimm;
int i, j, banks, ranks, rows, cols, size, npages;
- int csrow = 0;
- unsigned long last_page = 0;
u32 reg;
enum edac_type mode;
enum mem_type mtype;
u32 mtr;
for (j = 0; j < ARRAY_SIZE(mtr_regs); j++) {
+ dimm = EDAC_DIMM_PTR(mci->layers, mci->dimms, mci->n_layers,
+ i, j, 0);
pci_read_config_dword(pvt->pci_tad[i],
mtr_regs[j], &mtr);
debugf4("Channel #%d MTR%d = %x\n", i, j, mtr);
pvt->sbridge_dev->mc, i, j,
size, npages,
banks, ranks, rows, cols);
- csr = &mci->csrows[csrow];
-
- csr->first_page = last_page;
- csr->last_page = last_page + npages - 1;
- csr->page_mask = 0UL; /* Unused */
- csr->nr_pages = npages;
- csr->grain = 32;
- csr->csrow_idx = csrow;
- csr->dtype = (banks == 8) ? DEV_X8 : DEV_X4;
- csr->ce_count = 0;
- csr->ue_count = 0;
- csr->mtype = mtype;
- csr->edac_mode = mode;
- csr->nr_channels = 1;
- csr->channels[0].chan_idx = i;
- csr->channels[0].ce_count = 0;
- pvt->csrow_map[i][j] = csrow;
- snprintf(csr->channels[0].label,
- sizeof(csr->channels[0].label),
+
+ dimm->nr_pages = npages;
+ dimm->grain = 32;
+ dimm->dtype = (banks == 8) ? DEV_X8 : DEV_X4;
+ dimm->mtype = mtype;
+ dimm->edac_mode = mode;
+ snprintf(dimm->label, sizeof(dimm->label),
"CPU_SrcID#%u_Channel#%u_DIMM#%u",
pvt->sbridge_dev->source_id, i, j);
- last_page += npages;
- csrow++;
}
}
}
u8 *socket,
long *channel_mask,
u8 *rank,
- char *area_type)
+ char **area_type, char *msg)
{
struct mem_ctl_info *new_mci;
struct sbridge_pvt *pvt = mci->pvt_info;
- char msg[256];
int n_rir, n_sads, n_tads, sad_way, sck_xch;
int sad_interl, idx, base_ch;
int interleave_mode;
*/
if ((addr > (u64) pvt->tolm) && (addr < (1LL << 32))) {
sprintf(msg, "Error at TOLM area, on addr 0x%08Lx", addr);
- edac_mc_handle_ce_no_info(mci, msg);
return -EINVAL;
}
if (addr >= (u64)pvt->tohm) {
sprintf(msg, "Error at MMIOH area, on addr 0x%016Lx", addr);
- edac_mc_handle_ce_no_info(mci, msg);
return -EINVAL;
}
limit = SAD_LIMIT(reg);
if (limit <= prv) {
sprintf(msg, "Can't discover the memory socket");
- edac_mc_handle_ce_no_info(mci, msg);
return -EINVAL;
}
if (addr <= limit)
}
if (n_sads == MAX_SAD) {
sprintf(msg, "Can't discover the memory socket");
- edac_mc_handle_ce_no_info(mci, msg);
return -EINVAL;
}
- area_type = get_dram_attr(reg);
+ *area_type = get_dram_attr(reg);
interleave_mode = INTERLEAVE_MODE(reg);
pci_read_config_dword(pvt->pci_sad0, interleave_list[n_sads],
break;
default:
sprintf(msg, "Can't discover socket interleave");
- edac_mc_handle_ce_no_info(mci, msg);
return -EINVAL;
}
*socket = sad_interleave[idx];
if (!new_mci) {
sprintf(msg, "Struct for socket #%u wasn't initialized",
*socket);
- edac_mc_handle_ce_no_info(mci, msg);
return -EINVAL;
}
mci = new_mci;
limit = TAD_LIMIT(reg);
if (limit <= prv) {
sprintf(msg, "Can't discover the memory channel");
- edac_mc_handle_ce_no_info(mci, msg);
return -EINVAL;
}
if (addr <= limit)
break;
default:
sprintf(msg, "Can't discover the TAD target");
- edac_mc_handle_ce_no_info(mci, msg);
return -EINVAL;
}
*channel_mask = 1 << base_ch;
break;
default:
sprintf(msg, "Invalid mirror set. Can't decode addr");
- edac_mc_handle_ce_no_info(mci, msg);
return -EINVAL;
}
} else
if (offset > addr) {
sprintf(msg, "Can't calculate ch addr: TAD offset 0x%08Lx is too high for addr 0x%08Lx!",
offset, addr);
- edac_mc_handle_ce_no_info(mci, msg);
return -EINVAL;
}
addr -= offset;
if (n_rir == MAX_RIR_RANGES) {
sprintf(msg, "Can't discover the memory rank for ch addr 0x%08Lx",
ch_addr);
- edac_mc_handle_ce_no_info(mci, msg);
return -EINVAL;
}
rir_way = RIR_WAY(reg);
{
struct mem_ctl_info *new_mci;
struct sbridge_pvt *pvt = mci->pvt_info;
- char *type, *optype, *msg, *recoverable_msg;
+ enum hw_event_mc_err_type tp_event;
+ char *type, *optype, msg[256];
bool ripv = GET_BITFIELD(m->mcgstatus, 0, 0);
bool overflow = GET_BITFIELD(m->status, 62, 62);
bool uncorrected_error = GET_BITFIELD(m->status, 61, 61);
u32 optypenum = GET_BITFIELD(m->status, 4, 6);
long channel_mask, first_channel;
u8 rank, socket;
- int csrow, rc, dimm;
- char *area_type = "Unknown";
-
- if (ripv)
- type = "NON_FATAL";
- else
- type = "FATAL";
+ int rc, dimm;
+ char *area_type = NULL;
+
+ if (uncorrected_error) {
+ if (ripv) {
+ type = "FATAL";
+ tp_event = HW_EVENT_ERR_FATAL;
+ } else {
+ type = "NON_FATAL";
+ tp_event = HW_EVENT_ERR_UNCORRECTED;
+ }
+ } else {
+ type = "CORRECTED";
+ tp_event = HW_EVENT_ERR_CORRECTED;
+ }
/*
* According with Table 15-9 of the Intel Architecture spec vol 3A,
} else {
switch (optypenum) {
case 0:
- optype = "generic undef request";
+ optype = "generic undef request error";
break;
case 1:
- optype = "memory read";
+ optype = "memory read error";
break;
case 2:
- optype = "memory write";
+ optype = "memory write error";
break;
case 3:
- optype = "addr/cmd";
+ optype = "addr/cmd error";
break;
case 4:
- optype = "memory scrubbing";
+ optype = "memory scrubbing error";
break;
default:
optype = "reserved";
}
rc = get_memory_error_data(mci, m->addr, &socket,
- &channel_mask, &rank, area_type);
+ &channel_mask, &rank, &area_type, msg);
if (rc < 0)
- return;
+ goto err_parsing;
new_mci = get_mci_for_node_id(socket);
if (!new_mci) {
- edac_mc_handle_ce_no_info(mci, "Error: socket got corrupted!");
- return;
+ strcpy(msg, "Error: socket got corrupted!");
+ goto err_parsing;
}
mci = new_mci;
pvt = mci->pvt_info;
else
dimm = 2;
- csrow = pvt->csrow_map[first_channel][dimm];
-
- if (uncorrected_error && recoverable)
- recoverable_msg = " recoverable";
- else
- recoverable_msg = "";
/*
- * FIXME: What should we do with "channel" information on mcelog?
- * Probably, we can just discard it, as the channel information
- * comes from the get_memory_error_data() address decoding
+ * FIXME: On some memory configurations (mirror, lockstep), the
+ * Memory Controller can't point the error to a single DIMM. The
+ * EDAC core should be handling the channel mask, in order to point
+ * to the group of dimm's where the error may be happening.
*/
- msg = kasprintf(GFP_ATOMIC,
- "%d %s error(s): %s on %s area %s%s: cpu=%d Err=%04x:%04x (ch=%d), "
- "addr = 0x%08llx => socket=%d, Channel=%ld(mask=%ld), rank=%d\n",
- core_err_cnt,
- area_type,
- optype,
- type,
- recoverable_msg,
- overflow ? "OVERFLOW" : "",
- m->cpu,
- mscod, errcode,
- channel, /* 1111b means not specified */
- (long long) m->addr,
- socket,
- first_channel, /* This is the real channel on SB */
- channel_mask,
- rank);
+ snprintf(msg, sizeof(msg),
+ "count:%d%s%s area:%s err_code:%04x:%04x socket:%d channel_mask:%ld rank:%d",
+ core_err_cnt,
+ overflow ? " OVERFLOW" : "",
+ (uncorrected_error && recoverable) ? " recoverable" : "",
+ area_type,
+ mscod, errcode,
+ socket,
+ channel_mask,
+ rank);
debugf0("%s", msg);
+ /* FIXME: need support for channel mask */
+
/* Call the helper to output message */
- if (uncorrected_error)
- edac_mc_handle_fbd_ue(mci, csrow, 0, 0, msg);
- else
- edac_mc_handle_fbd_ce(mci, csrow, 0, msg);
+ edac_mc_handle_error(tp_event, mci,
+ m->addr >> PAGE_SHIFT, m->addr & ~PAGE_MASK, 0,
+ channel, dimm, -1,
+ optype, msg, m);
+ return;
+err_parsing:
+ edac_mc_handle_error(tp_event, mci, 0, 0, 0,
+ -1, -1, -1,
+ msg, "", m);
- kfree(msg);
}
/*
static int sbridge_register_mci(struct sbridge_dev *sbridge_dev)
{
struct mem_ctl_info *mci;
+ struct edac_mc_layer layers[2];
struct sbridge_pvt *pvt;
- int rc, channels, csrows;
+ int rc;
/* Check the number of active and not disabled channels */
- rc = sbridge_get_active_channels(sbridge_dev->bus, &channels, &csrows);
+ rc = check_if_ecc_is_active(sbridge_dev->bus);
if (unlikely(rc < 0))
return rc;
/* allocate a new MC control structure */
- mci = edac_mc_alloc(sizeof(*pvt), csrows, channels, sbridge_dev->mc);
+ layers[0].type = EDAC_MC_LAYER_CHANNEL;
+ layers[0].size = NUM_CHANNELS;
+ layers[0].is_virt_csrow = false;
+ layers[1].type = EDAC_MC_LAYER_SLOT;
+ layers[1].size = MAX_DIMMS;
+ layers[1].is_virt_csrow = true;
+ mci = edac_mc_alloc(sbridge_dev->mc, ARRAY_SIZE(layers), layers,
+ sizeof(*pvt));
+
if (unlikely(!mci))
return -ENOMEM;
if (mem_error.sbe_count != priv->ce_count) {
dev_dbg(mci->dev, "ECC CE err on node %d\n", priv->node);
priv->ce_count = mem_error.sbe_count;
- edac_mc_handle_ce(mci, 0, 0, 0, 0, 0, mci->ctl_name);
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ 0, 0, 0,
+ 0, 0, -1,
+ mci->ctl_name, "", NULL);
}
}
struct csrow_info *csrow = &mci->csrows[0];
struct tile_edac_priv *priv = mci->pvt_info;
struct mshim_mem_info mem_info;
+ struct dimm_info *dimm = csrow->channels[0].dimm;
if (hv_dev_pread(priv->hv_devhdl, 0, (HV_VirtAddr)&mem_info,
sizeof(struct mshim_mem_info), MSHIM_MEM_INFO_OFF) !=
}
if (mem_info.mem_ecc)
- csrow->edac_mode = EDAC_SECDED;
+ dimm->edac_mode = EDAC_SECDED;
else
- csrow->edac_mode = EDAC_NONE;
+ dimm->edac_mode = EDAC_NONE;
switch (mem_info.mem_type) {
case DDR2:
- csrow->mtype = MEM_DDR2;
+ dimm->mtype = MEM_DDR2;
break;
case DDR3:
- csrow->mtype = MEM_DDR3;
+ dimm->mtype = MEM_DDR3;
break;
default:
return -1;
}
- csrow->first_page = 0;
- csrow->nr_pages = mem_info.mem_size >> PAGE_SHIFT;
- csrow->last_page = csrow->first_page + csrow->nr_pages - 1;
- csrow->grain = TILE_EDAC_ERROR_GRAIN;
- csrow->dtype = DEV_UNKNOWN;
+ dimm->nr_pages = mem_info.mem_size >> PAGE_SHIFT;
+ dimm->grain = TILE_EDAC_ERROR_GRAIN;
+ dimm->dtype = DEV_UNKNOWN;
return 0;
}
char hv_file[32];
int hv_devhdl;
struct mem_ctl_info *mci;
+ struct edac_mc_layer layers[2];
struct tile_edac_priv *priv;
int rc;
return -EINVAL;
/* A TILE MC has a single channel and one chip-select row. */
- mci = edac_mc_alloc(sizeof(struct tile_edac_priv),
- TILE_EDAC_NR_CSROWS, TILE_EDAC_NR_CHANS, pdev->id);
+ layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
+ layers[0].size = TILE_EDAC_NR_CSROWS;
+ layers[0].is_virt_csrow = true;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = TILE_EDAC_NR_CHANS;
+ layers[1].is_virt_csrow = false;
+ mci = edac_mc_alloc(pdev->id, ARRAY_SIZE(layers), layers,
+ sizeof(struct tile_edac_priv));
if (mci == NULL)
return -ENOMEM;
priv = mci->pvt_info;
return;
if ((info->errsts ^ info->errsts2) & X38_ERRSTS_BITS) {
- edac_mc_handle_ce_no_info(mci, "UE overwrote CE");
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 0, 0, 0,
+ -1, -1, -1,
+ "UE overwrote CE", "", NULL);
info->errsts = info->errsts2;
}
for (channel = 0; channel < x38_channel_num; channel++) {
log = info->eccerrlog[channel];
if (log & X38_ECCERRLOG_UE) {
- edac_mc_handle_ue(mci, 0, 0,
- eccerrlog_row(channel, log), "x38 UE");
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
+ 0, 0, 0,
+ eccerrlog_row(channel, log),
+ -1, -1,
+ "x38 UE", "", NULL);
} else if (log & X38_ECCERRLOG_CE) {
- edac_mc_handle_ce(mci, 0, 0,
- eccerrlog_syndrome(log),
- eccerrlog_row(channel, log), 0, "x38 CE");
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
+ 0, 0, eccerrlog_syndrome(log),
+ eccerrlog_row(channel, log),
+ -1, -1,
+ "x38 CE", "", NULL);
}
}
}
static int x38_probe1(struct pci_dev *pdev, int dev_idx)
{
int rc;
- int i;
+ int i, j;
struct mem_ctl_info *mci = NULL;
- unsigned long last_page;
+ struct edac_mc_layer layers[2];
u16 drbs[X38_CHANNELS][X38_RANKS_PER_CHANNEL];
bool stacked;
void __iomem *window;
how_many_channel(pdev);
/* FIXME: unconventional pvt_info usage */
- mci = edac_mc_alloc(0, X38_RANKS, x38_channel_num, 0);
+ layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
+ layers[0].size = X38_RANKS;
+ layers[0].is_virt_csrow = true;
+ layers[1].type = EDAC_MC_LAYER_CHANNEL;
+ layers[1].size = x38_channel_num;
+ layers[1].is_virt_csrow = false;
+ mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, 0);
if (!mci)
return -ENOMEM;
* cumulative; the last one will contain the total memory
* contained in all ranks.
*/
- last_page = -1UL;
for (i = 0; i < mci->nr_csrows; i++) {
unsigned long nr_pages;
struct csrow_info *csrow = &mci->csrows[i];
i / X38_RANKS_PER_CHANNEL,
i % X38_RANKS_PER_CHANNEL);
- if (nr_pages == 0) {
- csrow->mtype = MEM_EMPTY;
+ if (nr_pages == 0)
continue;
- }
- csrow->first_page = last_page + 1;
- last_page += nr_pages;
- csrow->last_page = last_page;
- csrow->nr_pages = nr_pages;
+ for (j = 0; j < x38_channel_num; j++) {
+ struct dimm_info *dimm = csrow->channels[j].dimm;
- csrow->grain = nr_pages << PAGE_SHIFT;
- csrow->mtype = MEM_DDR2;
- csrow->dtype = DEV_UNKNOWN;
- csrow->edac_mode = EDAC_UNKNOWN;
+ dimm->nr_pages = nr_pages / x38_channel_num;
+ dimm->grain = nr_pages << PAGE_SHIFT;
+ dimm->mtype = MEM_DDR2;
+ dimm->dtype = DEV_UNKNOWN;
+ dimm->edac_mode = EDAC_UNKNOWN;
+ }
}
x38_clear_error_info(mci);
depends on ARCH_EP93XX
select GPIO_GENERIC
+config GPIO_MM_LANTIQ
+ bool "Lantiq Memory mapped GPIOs"
+ depends on LANTIQ && SOC_XWAY
+ help
+ This enables support for memory mapped GPIOs on the External Bus Unit
+ (EBU) found on Lantiq SoCs. The gpios are output only as they are
+ created by attaching a 16bit latch to the bus.
+
config GPIO_MPC5200
def_bool y
depends on PPC_MPC52xx
help
Say yes here to support the PXA GPIO device
+config GPIO_STA2X11
+ bool "STA2x11/ConneXt GPIO support"
+ depends on MFD_STA2X11
+ select GENERIC_IRQ_CHIP
+ help
+ Say yes here to support the STA2x11/ConneXt GPIO device.
+ The GPIO module has 128 GPIO pins with alternate functions.
+
config GPIO_XILINX
bool "Xilinx GPIO support"
depends on PPC_OF || MICROBLAZE
Say yes here to support the NEC VR4100 series General-purpose I/O Uint
config GPIO_SCH
- tristate "Intel SCH/TunnelCreek GPIO"
+ tristate "Intel SCH/TunnelCreek/Centerton GPIO"
depends on PCI && X86
select MFD_CORE
select LPC_SCH
help
- Say yes here to support GPIO interface on Intel Poulsbo SCH
- or Intel Tunnel Creek processor.
+ Say yes here to support GPIO interface on Intel Poulsbo SCH,
+ Intel Tunnel Creek processor or Intel Centerton processor.
The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
powered by the core power rail and are turned off during sleep
modes (S3 and higher). The remaining four GPIOs are powered by
system from the Suspend-to-RAM state.
The Intel Tunnel Creek processor has 5 GPIOs powered by the
core power rail and 9 from suspend power supply.
+ The Intel Centerton processor has a total of 30 GPIO pins.
+ Twenty-one are powered by the core power rail and 9 from the
+ suspend power supply.
+
+config GPIO_ICH
+ tristate "Intel ICH GPIO"
+ depends on PCI && X86
+ select MFD_CORE
+ select LPC_ICH
+ help
+ Say yes here to support the GPIO functionality of a number of Intel
+ ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
+ ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
+ Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
+
+ If unsure, say N.
config GPIO_VX855
tristate "VIA VX855/VX875 GPIO"
This enables support for the GPIOs found on the STMPE I/O
Expanders.
+config GPIO_STP_XWAY
+ bool "XWAY STP GPIOs"
+ depends on SOC_XWAY
+ help
+ This enables support for the Serial To Parallel (STP) unit found on
+ XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
+ that can be up to 24 bit. This peripheral is aimed at driving leds.
+ Some of the gpios/leds can be auto updated by the soc with dsl and
+ phy status.
+
config GPIO_TC3589X
bool "TC3589X GPIOs"
depends on MFD_TC3589X
obj-$(CONFIG_GPIO_EM) += gpio-em.o
obj-$(CONFIG_GPIO_EP93XX) += gpio-ep93xx.o
obj-$(CONFIG_GPIO_GE_FPGA) += gpio-ge.o
+obj-$(CONFIG_GPIO_ICH) += gpio-ich.o
obj-$(CONFIG_GPIO_IT8761E) += gpio-it8761e.o
obj-$(CONFIG_GPIO_JANZ_TTL) += gpio-janz-ttl.o
obj-$(CONFIG_ARCH_KS8695) += gpio-ks8695.o
obj-$(CONFIG_GPIO_MC9S08DZ60) += gpio-mc9s08dz60.o
obj-$(CONFIG_GPIO_MCP23S08) += gpio-mcp23s08.o
obj-$(CONFIG_GPIO_ML_IOH) += gpio-ml-ioh.o
+obj-$(CONFIG_GPIO_MM_LANTIQ) += gpio-mm-lantiq.o
obj-$(CONFIG_GPIO_MPC5200) += gpio-mpc5200.o
obj-$(CONFIG_GPIO_MPC8XXX) += gpio-mpc8xxx.o
obj-$(CONFIG_GPIO_MSIC) += gpio-msic.o
obj-$(CONFIG_ARCH_SA1100) += gpio-sa1100.o
obj-$(CONFIG_GPIO_SCH) += gpio-sch.o
obj-$(CONFIG_GPIO_SODAVILLE) += gpio-sodaville.o
+obj-$(CONFIG_GPIO_STA2X11) += gpio-sta2x11.o
obj-$(CONFIG_GPIO_STMPE) += gpio-stmpe.o
+obj-$(CONFIG_GPIO_STP_XWAY) += gpio-stp-xway.o
obj-$(CONFIG_GPIO_SX150X) += gpio-sx150x.o
obj-$(CONFIG_GPIO_TC3589X) += gpio-tc3589x.o
obj-$(CONFIG_ARCH_TEGRA) += gpio-tegra.o
--- /dev/null
+/*
+ * Intel ICH6-10, Series 5 and 6 GPIO driver
+ *
+ * Copyright (C) 2010 Extreme Engineering Solutions.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/lpc_ich.h>
+
+#define DRV_NAME "gpio_ich"
+
+/*
+ * GPIO register offsets in GPIO I/O space.
+ * Each chunk of 32 GPIOs is manipulated via its own USE_SELx, IO_SELx, and
+ * LVLx registers. Logic in the read/write functions takes a register and
+ * an absolute bit number and determines the proper register offset and bit
+ * number in that register. For example, to read the value of GPIO bit 50
+ * the code would access offset ichx_regs[2(=GPIO_LVL)][1(=50/32)],
+ * bit 18 (50%32).
+ */
+enum GPIO_REG {
+ GPIO_USE_SEL = 0,
+ GPIO_IO_SEL,
+ GPIO_LVL,
+};
+
+static const u8 ichx_regs[3][3] = {
+ {0x00, 0x30, 0x40}, /* USE_SEL[1-3] offsets */
+ {0x04, 0x34, 0x44}, /* IO_SEL[1-3] offsets */
+ {0x0c, 0x38, 0x48}, /* LVL[1-3] offsets */
+};
+
+#define ICHX_WRITE(val, reg, base_res) outl(val, (reg) + (base_res)->start)
+#define ICHX_READ(reg, base_res) inl((reg) + (base_res)->start)
+
+struct ichx_desc {
+ /* Max GPIO pins the chipset can have */
+ uint ngpio;
+
+ /* Whether the chipset has GPIO in GPE0_STS in the PM IO region */
+ bool uses_gpe0;
+
+ /* USE_SEL is bogus on some chipsets, eg 3100 */
+ u32 use_sel_ignore[3];
+
+ /* Some chipsets have quirks, let these use their own request/get */
+ int (*request)(struct gpio_chip *chip, unsigned offset);
+ int (*get)(struct gpio_chip *chip, unsigned offset);
+};
+
+static struct {
+ spinlock_t lock;
+ struct platform_device *dev;
+ struct gpio_chip chip;
+ struct resource *gpio_base; /* GPIO IO base */
+ struct resource *pm_base; /* Power Mangagment IO base */
+ struct ichx_desc *desc; /* Pointer to chipset-specific description */
+ u32 orig_gpio_ctrl; /* Orig CTRL value, used to restore on exit */
+} ichx_priv;
+
+static int modparam_gpiobase = -1; /* dynamic */
+module_param_named(gpiobase, modparam_gpiobase, int, 0444);
+MODULE_PARM_DESC(gpiobase, "The GPIO number base. -1 means dynamic, "
+ "which is the default.");
+
+static int ichx_write_bit(int reg, unsigned nr, int val, int verify)
+{
+ unsigned long flags;
+ u32 data, tmp;
+ int reg_nr = nr / 32;
+ int bit = nr & 0x1f;
+ int ret = 0;
+
+ spin_lock_irqsave(&ichx_priv.lock, flags);
+
+ data = ICHX_READ(ichx_regs[reg][reg_nr], ichx_priv.gpio_base);
+ if (val)
+ data |= 1 << bit;
+ else
+ data &= ~(1 << bit);
+ ICHX_WRITE(data, ichx_regs[reg][reg_nr], ichx_priv.gpio_base);
+ tmp = ICHX_READ(ichx_regs[reg][reg_nr], ichx_priv.gpio_base);
+ if (verify && data != tmp)
+ ret = -EPERM;
+
+ spin_unlock_irqrestore(&ichx_priv.lock, flags);
+
+ return ret;
+}
+
+static int ichx_read_bit(int reg, unsigned nr)
+{
+ unsigned long flags;
+ u32 data;
+ int reg_nr = nr / 32;
+ int bit = nr & 0x1f;
+
+ spin_lock_irqsave(&ichx_priv.lock, flags);
+
+ data = ICHX_READ(ichx_regs[reg][reg_nr], ichx_priv.gpio_base);
+
+ spin_unlock_irqrestore(&ichx_priv.lock, flags);
+
+ return data & (1 << bit) ? 1 : 0;
+}
+
+static int ichx_gpio_direction_input(struct gpio_chip *gpio, unsigned nr)
+{
+ /*
+ * Try setting pin as an input and verify it worked since many pins
+ * are output-only.
+ */
+ if (ichx_write_bit(GPIO_IO_SEL, nr, 1, 1))
+ return -EINVAL;
+
+ return 0;
+}
+
+static int ichx_gpio_direction_output(struct gpio_chip *gpio, unsigned nr,
+ int val)
+{
+ /* Set GPIO output value. */
+ ichx_write_bit(GPIO_LVL, nr, val, 0);
+
+ /*
+ * Try setting pin as an output and verify it worked since many pins
+ * are input-only.
+ */
+ if (ichx_write_bit(GPIO_IO_SEL, nr, 0, 1))
+ return -EINVAL;
+
+ return 0;
+}
+
+static int ichx_gpio_get(struct gpio_chip *chip, unsigned nr)
+{
+ return ichx_read_bit(GPIO_LVL, nr);
+}
+
+static int ich6_gpio_get(struct gpio_chip *chip, unsigned nr)
+{
+ unsigned long flags;
+ u32 data;
+
+ /*
+ * GPI 0 - 15 need to be read from the power management registers on
+ * a ICH6/3100 bridge.
+ */
+ if (nr < 16) {
+ if (!ichx_priv.pm_base)
+ return -ENXIO;
+
+ spin_lock_irqsave(&ichx_priv.lock, flags);
+
+ /* GPI 0 - 15 are latched, write 1 to clear*/
+ ICHX_WRITE(1 << (16 + nr), 0, ichx_priv.pm_base);
+ data = ICHX_READ(0, ichx_priv.pm_base);
+
+ spin_unlock_irqrestore(&ichx_priv.lock, flags);
+
+ return (data >> 16) & (1 << nr) ? 1 : 0;
+ } else {
+ return ichx_gpio_get(chip, nr);
+ }
+}
+
+static int ichx_gpio_request(struct gpio_chip *chip, unsigned nr)
+{
+ /*
+ * Note we assume the BIOS properly set a bridge's USE value. Some
+ * chips (eg Intel 3100) have bogus USE values though, so first see if
+ * the chipset's USE value can be trusted for this specific bit.
+ * If it can't be trusted, assume that the pin can be used as a GPIO.
+ */
+ if (ichx_priv.desc->use_sel_ignore[nr / 32] & (1 << (nr & 0x1f)))
+ return 1;
+
+ return ichx_read_bit(GPIO_USE_SEL, nr) ? 0 : -ENODEV;
+}
+
+static int ich6_gpio_request(struct gpio_chip *chip, unsigned nr)
+{
+ /*
+ * Fixups for bits 16 and 17 are necessary on the Intel ICH6/3100
+ * bridge as they are controlled by USE register bits 0 and 1. See
+ * "Table 704 GPIO_USE_SEL1 register" in the i3100 datasheet for
+ * additional info.
+ */
+ if (nr == 16 || nr == 17)
+ nr -= 16;
+
+ return ichx_gpio_request(chip, nr);
+}
+
+static void ichx_gpio_set(struct gpio_chip *chip, unsigned nr, int val)
+{
+ ichx_write_bit(GPIO_LVL, nr, val, 0);
+}
+
+static void __devinit ichx_gpiolib_setup(struct gpio_chip *chip)
+{
+ chip->owner = THIS_MODULE;
+ chip->label = DRV_NAME;
+ chip->dev = &ichx_priv.dev->dev;
+
+ /* Allow chip-specific overrides of request()/get() */
+ chip->request = ichx_priv.desc->request ?
+ ichx_priv.desc->request : ichx_gpio_request;
+ chip->get = ichx_priv.desc->get ?
+ ichx_priv.desc->get : ichx_gpio_get;
+
+ chip->set = ichx_gpio_set;
+ chip->direction_input = ichx_gpio_direction_input;
+ chip->direction_output = ichx_gpio_direction_output;
+ chip->base = modparam_gpiobase;
+ chip->ngpio = ichx_priv.desc->ngpio;
+ chip->can_sleep = 0;
+ chip->dbg_show = NULL;
+}
+
+/* ICH6-based, 631xesb-based */
+static struct ichx_desc ich6_desc = {
+ /* Bridges using the ICH6 controller need fixups for GPIO 0 - 17 */
+ .request = ich6_gpio_request,
+ .get = ich6_gpio_get,
+
+ /* GPIO 0-15 are read in the GPE0_STS PM register */
+ .uses_gpe0 = true,
+
+ .ngpio = 50,
+};
+
+/* Intel 3100 */
+static struct ichx_desc i3100_desc = {
+ /*
+ * Bits 16,17, 20 of USE_SEL and bit 16 of USE_SEL2 always read 0 on
+ * the Intel 3100. See "Table 712. GPIO Summary Table" of 3100
+ * Datasheet for more info.
+ */
+ .use_sel_ignore = {0x00130000, 0x00010000, 0x0},
+
+ /* The 3100 needs fixups for GPIO 0 - 17 */
+ .request = ich6_gpio_request,
+ .get = ich6_gpio_get,
+
+ /* GPIO 0-15 are read in the GPE0_STS PM register */
+ .uses_gpe0 = true,
+
+ .ngpio = 50,
+};
+
+/* ICH7 and ICH8-based */
+static struct ichx_desc ich7_desc = {
+ .ngpio = 50,
+};
+
+/* ICH9-based */
+static struct ichx_desc ich9_desc = {
+ .ngpio = 61,
+};
+
+/* ICH10-based - Consumer/corporate versions have different amount of GPIO */
+static struct ichx_desc ich10_cons_desc = {
+ .ngpio = 61,
+};
+static struct ichx_desc ich10_corp_desc = {
+ .ngpio = 72,
+};
+
+/* Intel 5 series, 6 series, 3400 series, and C200 series */
+static struct ichx_desc intel5_desc = {
+ .ngpio = 76,
+};
+
+static int __devinit ichx_gpio_probe(struct platform_device *pdev)
+{
+ struct resource *res_base, *res_pm;
+ int err;
+ struct lpc_ich_info *ich_info = pdev->dev.platform_data;
+
+ if (!ich_info)
+ return -ENODEV;
+
+ ichx_priv.dev = pdev;
+
+ switch (ich_info->gpio_version) {
+ case ICH_I3100_GPIO:
+ ichx_priv.desc = &i3100_desc;
+ break;
+ case ICH_V5_GPIO:
+ ichx_priv.desc = &intel5_desc;
+ break;
+ case ICH_V6_GPIO:
+ ichx_priv.desc = &ich6_desc;
+ break;
+ case ICH_V7_GPIO:
+ ichx_priv.desc = &ich7_desc;
+ break;
+ case ICH_V9_GPIO:
+ ichx_priv.desc = &ich9_desc;
+ break;
+ case ICH_V10CORP_GPIO:
+ ichx_priv.desc = &ich10_corp_desc;
+ break;
+ case ICH_V10CONS_GPIO:
+ ichx_priv.desc = &ich10_cons_desc;
+ break;
+ default:
+ return -ENODEV;
+ }
+
+ res_base = platform_get_resource(pdev, IORESOURCE_IO, ICH_RES_GPIO);
+ if (!res_base || !res_base->start || !res_base->end)
+ return -ENODEV;
+
+ if (!request_region(res_base->start, resource_size(res_base),
+ pdev->name))
+ return -EBUSY;
+
+ ichx_priv.gpio_base = res_base;
+
+ /*
+ * If necessary, determine the I/O address of ACPI/power management
+ * registers which are needed to read the the GPE0 register for GPI pins
+ * 0 - 15 on some chipsets.
+ */
+ if (!ichx_priv.desc->uses_gpe0)
+ goto init;
+
+ res_pm = platform_get_resource(pdev, IORESOURCE_IO, ICH_RES_GPE0);
+ if (!res_pm) {
+ pr_warn("ACPI BAR is unavailable, GPI 0 - 15 unavailable\n");
+ goto init;
+ }
+
+ if (!request_region(res_pm->start, resource_size(res_pm),
+ pdev->name)) {
+ pr_warn("ACPI BAR is busy, GPI 0 - 15 unavailable\n");
+ goto init;
+ }
+
+ ichx_priv.pm_base = res_pm;
+
+init:
+ ichx_gpiolib_setup(&ichx_priv.chip);
+ err = gpiochip_add(&ichx_priv.chip);
+ if (err) {
+ pr_err("Failed to register GPIOs\n");
+ goto add_err;
+ }
+
+ pr_info("GPIO from %d to %d on %s\n", ichx_priv.chip.base,
+ ichx_priv.chip.base + ichx_priv.chip.ngpio - 1, DRV_NAME);
+
+ return 0;
+
+add_err:
+ release_region(ichx_priv.gpio_base->start,
+ resource_size(ichx_priv.gpio_base));
+ if (ichx_priv.pm_base)
+ release_region(ichx_priv.pm_base->start,
+ resource_size(ichx_priv.pm_base));
+ return err;
+}
+
+static int __devexit ichx_gpio_remove(struct platform_device *pdev)
+{
+ int err;
+
+ err = gpiochip_remove(&ichx_priv.chip);
+ if (err) {
+ dev_err(&pdev->dev, "%s failed, %d\n",
+ "gpiochip_remove()", err);
+ return err;
+ }
+
+ release_region(ichx_priv.gpio_base->start,
+ resource_size(ichx_priv.gpio_base));
+ if (ichx_priv.pm_base)
+ release_region(ichx_priv.pm_base->start,
+ resource_size(ichx_priv.pm_base));
+
+ return 0;
+}
+
+static struct platform_driver ichx_gpio_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = DRV_NAME,
+ },
+ .probe = ichx_gpio_probe,
+ .remove = __devexit_p(ichx_gpio_remove),
+};
+
+module_platform_driver(ichx_gpio_driver);
+
+MODULE_AUTHOR("Peter Tyser <ptyser@xes-inc.com>");
+MODULE_DESCRIPTION("GPIO interface for Intel ICH series");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:"DRV_NAME);
--- /dev/null
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Copyright (C) 2012 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/platform_device.h>
+#include <linux/mutex.h>
+#include <linux/gpio.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+
+#include <lantiq_soc.h>
+
+/*
+ * By attaching hardware latches to the EBU it is possible to create output
+ * only gpios. This driver configures a special memory address, which when
+ * written to outputs 16 bit to the latches.
+ */
+
+#define LTQ_EBU_BUSCON 0x1e7ff /* 16 bit access, slowest timing */
+#define LTQ_EBU_WP 0x80000000 /* write protect bit */
+
+struct ltq_mm {
+ struct of_mm_gpio_chip mmchip;
+ u16 shadow; /* shadow the latches state */
+};
+
+/**
+ * ltq_mm_apply() - write the shadow value to the ebu address.
+ * @chip: Pointer to our private data structure.
+ *
+ * Write the shadow value to the EBU to set the gpios. We need to set the
+ * global EBU lock to make sure that PCI/MTD dont break.
+ */
+static void ltq_mm_apply(struct ltq_mm *chip)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ebu_lock, flags);
+ ltq_ebu_w32(LTQ_EBU_BUSCON, LTQ_EBU_BUSCON1);
+ __raw_writew(chip->shadow, chip->mmchip.regs);
+ ltq_ebu_w32(LTQ_EBU_BUSCON | LTQ_EBU_WP, LTQ_EBU_BUSCON1);
+ spin_unlock_irqrestore(&ebu_lock, flags);
+}
+
+/**
+ * ltq_mm_set() - gpio_chip->set - set gpios.
+ * @gc: Pointer to gpio_chip device structure.
+ * @gpio: GPIO signal number.
+ * @val: Value to be written to specified signal.
+ *
+ * Set the shadow value and call ltq_mm_apply.
+ */
+static void ltq_mm_set(struct gpio_chip *gc, unsigned offset, int value)
+{
+ struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
+ struct ltq_mm *chip =
+ container_of(mm_gc, struct ltq_mm, mmchip);
+
+ if (value)
+ chip->shadow |= (1 << offset);
+ else
+ chip->shadow &= ~(1 << offset);
+ ltq_mm_apply(chip);
+}
+
+/**
+ * ltq_mm_dir_out() - gpio_chip->dir_out - set gpio direction.
+ * @gc: Pointer to gpio_chip device structure.
+ * @gpio: GPIO signal number.
+ * @val: Value to be written to specified signal.
+ *
+ * Same as ltq_mm_set, always returns 0.
+ */
+static int ltq_mm_dir_out(struct gpio_chip *gc, unsigned offset, int value)
+{
+ ltq_mm_set(gc, offset, value);
+
+ return 0;
+}
+
+/**
+ * ltq_mm_save_regs() - Set initial values of GPIO pins
+ * @mm_gc: pointer to memory mapped GPIO chip structure
+ */
+static void ltq_mm_save_regs(struct of_mm_gpio_chip *mm_gc)
+{
+ struct ltq_mm *chip =
+ container_of(mm_gc, struct ltq_mm, mmchip);
+
+ /* tell the ebu controller which memory address we will be using */
+ ltq_ebu_w32(CPHYSADDR(chip->mmchip.regs) | 0x1, LTQ_EBU_ADDRSEL1);
+
+ ltq_mm_apply(chip);
+}
+
+static int ltq_mm_probe(struct platform_device *pdev)
+{
+ struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ struct ltq_mm *chip;
+ const __be32 *shadow;
+ int ret = 0;
+
+ if (!res) {
+ dev_err(&pdev->dev, "failed to get memory resource\n");
+ return -ENOENT;
+ }
+
+ chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+ if (!chip)
+ return -ENOMEM;
+
+ chip->mmchip.gc.ngpio = 16;
+ chip->mmchip.gc.label = "gpio-mm-ltq";
+ chip->mmchip.gc.direction_output = ltq_mm_dir_out;
+ chip->mmchip.gc.set = ltq_mm_set;
+ chip->mmchip.save_regs = ltq_mm_save_regs;
+
+ /* store the shadow value if one was passed by the devicetree */
+ shadow = of_get_property(pdev->dev.of_node, "lantiq,shadow", NULL);
+ if (shadow)
+ chip->shadow = be32_to_cpu(*shadow);
+
+ ret = of_mm_gpiochip_add(pdev->dev.of_node, &chip->mmchip);
+ if (ret)
+ kfree(chip);
+ return ret;
+}
+
+static const struct of_device_id ltq_mm_match[] = {
+ { .compatible = "lantiq,gpio-mm" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, ltq_mm_match);
+
+static struct platform_driver ltq_mm_driver = {
+ .probe = ltq_mm_probe,
+ .driver = {
+ .name = "gpio-mm-ltq",
+ .owner = THIS_MODULE,
+ .of_match_table = ltq_mm_match,
+ },
+};
+
+static int __init ltq_mm_init(void)
+{
+ return platform_driver_register(<q_mm_driver);
+}
+
+subsys_initcall(ltq_mm_init);
sch_gpio_resume.ngpio = 9;
break;
+ case PCI_DEVICE_ID_INTEL_CENTERTON_ILB:
+ sch_gpio_core.base = 0;
+ sch_gpio_core.ngpio = 21;
+
+ sch_gpio_resume.base = 21;
+ sch_gpio_resume.ngpio = 9;
+ break;
+
default:
return -ENODEV;
}
--- /dev/null
+/*
+ * STMicroelectronics ConneXt (STA2X11) GPIO driver
+ *
+ * Copyright 2012 ST Microelectronics (Alessandro Rubini)
+ * Based on gpio-ml-ioh.c, Copyright 2010 OKI Semiconductors Ltd.
+ * Also based on previous sta2x11 work, Copyright 2011 Wind River Systems, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/sta2x11-mfd.h>
+
+struct gsta_regs {
+ u32 dat; /* 0x00 */
+ u32 dats;
+ u32 datc;
+ u32 pdis;
+ u32 dir; /* 0x10 */
+ u32 dirs;
+ u32 dirc;
+ u32 unused_1c;
+ u32 afsela; /* 0x20 */
+ u32 unused_24[7];
+ u32 rimsc; /* 0x40 */
+ u32 fimsc;
+ u32 is;
+ u32 ic;
+};
+
+struct gsta_gpio {
+ spinlock_t lock;
+ struct device *dev;
+ void __iomem *reg_base;
+ struct gsta_regs __iomem *regs[GSTA_NR_BLOCKS];
+ struct gpio_chip gpio;
+ int irq_base;
+ /* FIXME: save the whole config here (AF, ...) */
+ unsigned irq_type[GSTA_NR_GPIO];
+};
+
+static inline struct gsta_regs __iomem *__regs(struct gsta_gpio *chip, int nr)
+{
+ return chip->regs[nr / GSTA_GPIO_PER_BLOCK];
+}
+
+static inline u32 __bit(int nr)
+{
+ return 1U << (nr % GSTA_GPIO_PER_BLOCK);
+}
+
+/*
+ * gpio methods
+ */
+
+static void gsta_gpio_set(struct gpio_chip *gpio, unsigned nr, int val)
+{
+ struct gsta_gpio *chip = container_of(gpio, struct gsta_gpio, gpio);
+ struct gsta_regs __iomem *regs = __regs(chip, nr);
+ u32 bit = __bit(nr);
+
+ if (val)
+ writel(bit, ®s->dats);
+ else
+ writel(bit, ®s->datc);
+}
+
+static int gsta_gpio_get(struct gpio_chip *gpio, unsigned nr)
+{
+ struct gsta_gpio *chip = container_of(gpio, struct gsta_gpio, gpio);
+ struct gsta_regs __iomem *regs = __regs(chip, nr);
+ u32 bit = __bit(nr);
+
+ return readl(®s->dat) & bit;
+}
+
+static int gsta_gpio_direction_output(struct gpio_chip *gpio, unsigned nr,
+ int val)
+{
+ struct gsta_gpio *chip = container_of(gpio, struct gsta_gpio, gpio);
+ struct gsta_regs __iomem *regs = __regs(chip, nr);
+ u32 bit = __bit(nr);
+
+ writel(bit, ®s->dirs);
+ /* Data register after direction, otherwise pullup/down is selected */
+ if (val)
+ writel(bit, ®s->dats);
+ else
+ writel(bit, ®s->datc);
+ return 0;
+}
+
+static int gsta_gpio_direction_input(struct gpio_chip *gpio, unsigned nr)
+{
+ struct gsta_gpio *chip = container_of(gpio, struct gsta_gpio, gpio);
+ struct gsta_regs __iomem *regs = __regs(chip, nr);
+ u32 bit = __bit(nr);
+
+ writel(bit, ®s->dirc);
+ return 0;
+}
+
+static int gsta_gpio_to_irq(struct gpio_chip *gpio, unsigned offset)
+{
+ struct gsta_gpio *chip = container_of(gpio, struct gsta_gpio, gpio);
+ return chip->irq_base + offset;
+}
+
+static void gsta_gpio_setup(struct gsta_gpio *chip) /* called from probe */
+{
+ struct gpio_chip *gpio = &chip->gpio;
+
+ /*
+ * ARCH_NR_GPIOS is currently 256 and dynamic allocation starts
+ * from the end. However, for compatibility, we need the first
+ * ConneXt device to start from gpio 0: it's the main chipset
+ * on most boards so documents and drivers assume gpio0..gpio127
+ */
+ static int gpio_base;
+
+ gpio->label = dev_name(chip->dev);
+ gpio->owner = THIS_MODULE;
+ gpio->direction_input = gsta_gpio_direction_input;
+ gpio->get = gsta_gpio_get;
+ gpio->direction_output = gsta_gpio_direction_output;
+ gpio->set = gsta_gpio_set;
+ gpio->dbg_show = NULL;
+ gpio->base = gpio_base;
+ gpio->ngpio = GSTA_NR_GPIO;
+ gpio->can_sleep = 0;
+ gpio->to_irq = gsta_gpio_to_irq;
+
+ /*
+ * After the first device, turn to dynamic gpio numbers.
+ * For example, with ARCH_NR_GPIOS = 256 we can fit two cards
+ */
+ if (!gpio_base)
+ gpio_base = -1;
+}
+
+/*
+ * Special method: alternate functions and pullup/pulldown. This is only
+ * invoked on startup to configure gpio's according to platform data.
+ * FIXME : this functionality shall be managed (and exported to other drivers)
+ * via the pin control subsystem.
+ */
+static void gsta_set_config(struct gsta_gpio *chip, int nr, unsigned cfg)
+{
+ struct gsta_regs __iomem *regs = __regs(chip, nr);
+ unsigned long flags;
+ u32 bit = __bit(nr);
+ u32 val;
+ int err = 0;
+
+ pr_info("%s: %p %i %i\n", __func__, chip, nr, cfg);
+
+ if (cfg == PINMUX_TYPE_NONE)
+ return;
+
+ /* Alternate function or not? */
+ spin_lock_irqsave(&chip->lock, flags);
+ val = readl(®s->afsela);
+ if (cfg == PINMUX_TYPE_FUNCTION)
+ val |= bit;
+ else
+ val &= ~bit;
+ writel(val | bit, ®s->afsela);
+ if (cfg == PINMUX_TYPE_FUNCTION) {
+ spin_unlock_irqrestore(&chip->lock, flags);
+ return;
+ }
+
+ /* not alternate function: set details */
+ switch (cfg) {
+ case PINMUX_TYPE_OUTPUT_LOW:
+ writel(bit, ®s->dirs);
+ writel(bit, ®s->datc);
+ break;
+ case PINMUX_TYPE_OUTPUT_HIGH:
+ writel(bit, ®s->dirs);
+ writel(bit, ®s->dats);
+ break;
+ case PINMUX_TYPE_INPUT:
+ writel(bit, ®s->dirc);
+ val = readl(®s->pdis) | bit;
+ writel(val, ®s->pdis);
+ break;
+ case PINMUX_TYPE_INPUT_PULLUP:
+ writel(bit, ®s->dirc);
+ val = readl(®s->pdis) & ~bit;
+ writel(val, ®s->pdis);
+ writel(bit, ®s->dats);
+ break;
+ case PINMUX_TYPE_INPUT_PULLDOWN:
+ writel(bit, ®s->dirc);
+ val = readl(®s->pdis) & ~bit;
+ writel(val, ®s->pdis);
+ writel(bit, ®s->datc);
+ break;
+ default:
+ err = 1;
+ }
+ spin_unlock_irqrestore(&chip->lock, flags);
+ if (err)
+ pr_err("%s: chip %p, pin %i, cfg %i is invalid\n",
+ __func__, chip, nr, cfg);
+}
+
+/*
+ * Irq methods
+ */
+
+static void gsta_irq_disable(struct irq_data *data)
+{
+ struct irq_chip_generic *gc = irq_data_get_irq_chip_data(data);
+ struct gsta_gpio *chip = gc->private;
+ int nr = data->irq - chip->irq_base;
+ struct gsta_regs __iomem *regs = __regs(chip, nr);
+ u32 bit = __bit(nr);
+ u32 val;
+ unsigned long flags;
+
+ spin_lock_irqsave(&chip->lock, flags);
+ if (chip->irq_type[nr] & IRQ_TYPE_EDGE_RISING) {
+ val = readl(®s->rimsc) & ~bit;
+ writel(val, ®s->rimsc);
+ }
+ if (chip->irq_type[nr] & IRQ_TYPE_EDGE_FALLING) {
+ val = readl(®s->fimsc) & ~bit;
+ writel(val, ®s->fimsc);
+ }
+ spin_unlock_irqrestore(&chip->lock, flags);
+ return;
+}
+
+static void gsta_irq_enable(struct irq_data *data)
+{
+ struct irq_chip_generic *gc = irq_data_get_irq_chip_data(data);
+ struct gsta_gpio *chip = gc->private;
+ int nr = data->irq - chip->irq_base;
+ struct gsta_regs __iomem *regs = __regs(chip, nr);
+ u32 bit = __bit(nr);
+ u32 val;
+ int type;
+ unsigned long flags;
+
+ type = chip->irq_type[nr];
+
+ spin_lock_irqsave(&chip->lock, flags);
+ val = readl(®s->rimsc);
+ if (type & IRQ_TYPE_EDGE_RISING)
+ writel(val | bit, ®s->rimsc);
+ else
+ writel(val & ~bit, ®s->rimsc);
+ val = readl(®s->rimsc);
+ if (type & IRQ_TYPE_EDGE_FALLING)
+ writel(val | bit, ®s->fimsc);
+ else
+ writel(val & ~bit, ®s->fimsc);
+ spin_unlock_irqrestore(&chip->lock, flags);
+ return;
+}
+
+static int gsta_irq_type(struct irq_data *d, unsigned int type)
+{
+ struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+ struct gsta_gpio *chip = gc->private;
+ int nr = d->irq - chip->irq_base;
+
+ /* We only support edge interrupts */
+ if (!(type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))) {
+ pr_debug("%s: unsupported type 0x%x\n", __func__, type);
+ return -EINVAL;
+ }
+
+ chip->irq_type[nr] = type; /* used for enable/disable */
+
+ gsta_irq_enable(d);
+ return 0;
+}
+
+static irqreturn_t gsta_gpio_handler(int irq, void *dev_id)
+{
+ struct gsta_gpio *chip = dev_id;
+ struct gsta_regs __iomem *regs;
+ u32 is;
+ int i, nr, base;
+ irqreturn_t ret = IRQ_NONE;
+
+ for (i = 0; i < GSTA_NR_BLOCKS; i++) {
+ regs = chip->regs[i];
+ base = chip->irq_base + i * GSTA_GPIO_PER_BLOCK;
+ while ((is = readl(®s->is))) {
+ nr = __ffs(is);
+ irq = base + nr;
+ generic_handle_irq(irq);
+ writel(1 << nr, ®s->ic);
+ ret = IRQ_HANDLED;
+ }
+ }
+ return ret;
+}
+
+static __devinit void gsta_alloc_irq_chip(struct gsta_gpio *chip)
+{
+ struct irq_chip_generic *gc;
+ struct irq_chip_type *ct;
+
+ gc = irq_alloc_generic_chip(KBUILD_MODNAME, 1, chip->irq_base,
+ chip->reg_base, handle_simple_irq);
+ gc->private = chip;
+ ct = gc->chip_types;
+
+ ct->chip.irq_set_type = gsta_irq_type;
+ ct->chip.irq_disable = gsta_irq_disable;
+ ct->chip.irq_enable = gsta_irq_enable;
+
+ /* FIXME: this makes at most 32 interrupts. Request 0 by now */
+ irq_setup_generic_chip(gc, 0 /* IRQ_MSK(GSTA_GPIO_PER_BLOCK) */, 0,
+ IRQ_NOREQUEST | IRQ_NOPROBE, 0);
+
+ /* Set up all all 128 interrupts: code from setup_generic_chip */
+ {
+ struct irq_chip_type *ct = gc->chip_types;
+ int i, j;
+ for (j = 0; j < GSTA_NR_GPIO; j++) {
+ i = chip->irq_base + j;
+ irq_set_chip_and_handler(i, &ct->chip, ct->handler);
+ irq_set_chip_data(i, gc);
+ irq_modify_status(i, IRQ_NOREQUEST | IRQ_NOPROBE, 0);
+ }
+ gc->irq_cnt = i - gc->irq_base;
+ }
+}
+
+/* The platform device used here is instantiated by the MFD device */
+static int __devinit gsta_probe(struct platform_device *dev)
+{
+ int i, err;
+ struct pci_dev *pdev;
+ struct sta2x11_gpio_pdata *gpio_pdata;
+ struct gsta_gpio *chip;
+ struct resource *res;
+
+ pdev = *(struct pci_dev **)(dev->dev.platform_data);
+ gpio_pdata = dev_get_platdata(&pdev->dev);
+
+ if (gpio_pdata == NULL)
+ dev_err(&dev->dev, "no gpio config\n");
+ pr_debug("gpio config: %p\n", gpio_pdata);
+
+ res = platform_get_resource(dev, IORESOURCE_MEM, 0);
+
+ chip = devm_kzalloc(&dev->dev, sizeof(*chip), GFP_KERNEL);
+ chip->dev = &dev->dev;
+ chip->reg_base = devm_request_and_ioremap(&dev->dev, res);
+
+ for (i = 0; i < GSTA_NR_BLOCKS; i++) {
+ chip->regs[i] = chip->reg_base + i * 4096;
+ /* disable all irqs */
+ writel(0, &chip->regs[i]->rimsc);
+ writel(0, &chip->regs[i]->fimsc);
+ writel(~0, &chip->regs[i]->ic);
+ }
+ spin_lock_init(&chip->lock);
+ gsta_gpio_setup(chip);
+ for (i = 0; i < GSTA_NR_GPIO; i++)
+ gsta_set_config(chip, i, gpio_pdata->pinconfig[i]);
+
+ /* 384 was used in previous code: be compatible for other drivers */
+ err = irq_alloc_descs(-1, 384, GSTA_NR_GPIO, NUMA_NO_NODE);
+ if (err < 0) {
+ dev_warn(&dev->dev, "sta2x11 gpio: Can't get irq base (%i)\n",
+ -err);
+ return err;
+ }
+ chip->irq_base = err;
+ gsta_alloc_irq_chip(chip);
+
+ err = request_irq(pdev->irq, gsta_gpio_handler,
+ IRQF_SHARED, KBUILD_MODNAME, chip);
+ if (err < 0) {
+ dev_err(&dev->dev, "sta2x11 gpio: Can't request irq (%i)\n",
+ -err);
+ goto err_free_descs;
+ }
+
+ err = gpiochip_add(&chip->gpio);
+ if (err < 0) {
+ dev_err(&dev->dev, "sta2x11 gpio: Can't register (%i)\n",
+ -err);
+ goto err_free_irq;
+ }
+
+ platform_set_drvdata(dev, chip);
+ return 0;
+
+err_free_irq:
+ free_irq(pdev->irq, chip);
+err_free_descs:
+ irq_free_descs(chip->irq_base, GSTA_NR_GPIO);
+ return err;
+}
+
+static struct platform_driver sta2x11_gpio_platform_driver = {
+ .driver = {
+ .name = "sta2x11-gpio",
+ .owner = THIS_MODULE,
+ },
+ .probe = gsta_probe,
+};
+
+module_platform_driver(sta2x11_gpio_platform_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("sta2x11_gpio GPIO driver");
--- /dev/null
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Copyright (C) 2012 John Crispin <blogic@openwrt.org>
+ *
+ */
+
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/of_platform.h>
+#include <linux/mutex.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+#include <linux/of_gpio.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+
+#include <lantiq_soc.h>
+
+/*
+ * The Serial To Parallel (STP) is found on MIPS based Lantiq socs. It is a
+ * peripheral controller used to drive external shift register cascades. At most
+ * 3 groups of 8 bits can be driven. The hardware is able to allow the DSL modem
+ * to drive the 2 LSBs of the cascade automatically.
+ */
+
+/* control register 0 */
+#define XWAY_STP_CON0 0x00
+/* control register 1 */
+#define XWAY_STP_CON1 0x04
+/* data register 0 */
+#define XWAY_STP_CPU0 0x08
+/* data register 1 */
+#define XWAY_STP_CPU1 0x0C
+/* access register */
+#define XWAY_STP_AR 0x10
+
+/* software or hardware update select bit */
+#define XWAY_STP_CON_SWU BIT(31)
+
+/* automatic update rates */
+#define XWAY_STP_2HZ 0
+#define XWAY_STP_4HZ BIT(23)
+#define XWAY_STP_8HZ BIT(24)
+#define XWAY_STP_10HZ (BIT(24) | BIT(23))
+#define XWAY_STP_SPEED_MASK (0xf << 23)
+
+/* clock source for automatic update */
+#define XWAY_STP_UPD_FPI BIT(31)
+#define XWAY_STP_UPD_MASK (BIT(31) | BIT(30))
+
+/* let the adsl core drive the 2 LSBs */
+#define XWAY_STP_ADSL_SHIFT 24
+#define XWAY_STP_ADSL_MASK 0x3
+
+/* 2 groups of 3 bits can be driven by the phys */
+#define XWAY_STP_PHY_MASK 0x3
+#define XWAY_STP_PHY1_SHIFT 27
+#define XWAY_STP_PHY2_SHIFT 15
+
+/* STP has 3 groups of 8 bits */
+#define XWAY_STP_GROUP0 BIT(0)
+#define XWAY_STP_GROUP1 BIT(1)
+#define XWAY_STP_GROUP2 BIT(2)
+#define XWAY_STP_GROUP_MASK (0x7)
+
+/* Edge configuration bits */
+#define XWAY_STP_FALLING BIT(26)
+#define XWAY_STP_EDGE_MASK BIT(26)
+
+#define xway_stp_r32(m, reg) __raw_readl(m + reg)
+#define xway_stp_w32(m, val, reg) __raw_writel(val, m + reg)
+#define xway_stp_w32_mask(m, clear, set, reg) \
+ ltq_w32((ltq_r32(m + reg) & ~(clear)) | (set), \
+ m + reg)
+
+struct xway_stp {
+ struct gpio_chip gc;
+ void __iomem *virt;
+ u32 edge; /* rising or falling edge triggered shift register */
+ u16 shadow; /* shadow the shift registers state */
+ u8 groups; /* we can drive 1-3 groups of 8bit each */
+ u8 dsl; /* the 2 LSBs can be driven by the dsl core */
+ u8 phy1; /* 3 bits can be driven by phy1 */
+ u8 phy2; /* 3 bits can be driven by phy2 */
+ u8 reserved; /* mask out the hw driven bits in gpio_request */
+};
+
+/**
+ * xway_stp_set() - gpio_chip->set - set gpios.
+ * @gc: Pointer to gpio_chip device structure.
+ * @gpio: GPIO signal number.
+ * @val: Value to be written to specified signal.
+ *
+ * Set the shadow value and call ltq_ebu_apply.
+ */
+static void xway_stp_set(struct gpio_chip *gc, unsigned gpio, int val)
+{
+ struct xway_stp *chip =
+ container_of(gc, struct xway_stp, gc);
+
+ if (val)
+ chip->shadow |= BIT(gpio);
+ else
+ chip->shadow &= ~BIT(gpio);
+ xway_stp_w32(chip->virt, chip->shadow, XWAY_STP_CPU0);
+ xway_stp_w32_mask(chip->virt, 0, XWAY_STP_CON_SWU, XWAY_STP_CON0);
+}
+
+/**
+ * xway_stp_dir_out() - gpio_chip->dir_out - set gpio direction.
+ * @gc: Pointer to gpio_chip device structure.
+ * @gpio: GPIO signal number.
+ * @val: Value to be written to specified signal.
+ *
+ * Same as xway_stp_set, always returns 0.
+ */
+static int xway_stp_dir_out(struct gpio_chip *gc, unsigned gpio, int val)
+{
+ xway_stp_set(gc, gpio, val);
+
+ return 0;
+}
+
+/**
+ * xway_stp_request() - gpio_chip->request
+ * @gc: Pointer to gpio_chip device structure.
+ * @gpio: GPIO signal number.
+ *
+ * We mask out the HW driven pins
+ */
+static int xway_stp_request(struct gpio_chip *gc, unsigned gpio)
+{
+ struct xway_stp *chip =
+ container_of(gc, struct xway_stp, gc);
+
+ if ((gpio < 8) && (chip->reserved & BIT(gpio))) {
+ dev_err(gc->dev, "GPIO %d is driven by hardware\n", gpio);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+/**
+ * xway_stp_hw_init() - Configure the STP unit and enable the clock gate
+ * @virt: pointer to the remapped register range
+ */
+static int xway_stp_hw_init(struct xway_stp *chip)
+{
+ /* sane defaults */
+ xway_stp_w32(chip->virt, 0, XWAY_STP_AR);
+ xway_stp_w32(chip->virt, 0, XWAY_STP_CPU0);
+ xway_stp_w32(chip->virt, 0, XWAY_STP_CPU1);
+ xway_stp_w32(chip->virt, XWAY_STP_CON_SWU, XWAY_STP_CON0);
+ xway_stp_w32(chip->virt, 0, XWAY_STP_CON1);
+
+ /* apply edge trigger settings for the shift register */
+ xway_stp_w32_mask(chip->virt, XWAY_STP_EDGE_MASK,
+ chip->edge, XWAY_STP_CON0);
+
+ /* apply led group settings */
+ xway_stp_w32_mask(chip->virt, XWAY_STP_GROUP_MASK,
+ chip->groups, XWAY_STP_CON1);
+
+ /* tell the hardware which pins are controlled by the dsl modem */
+ xway_stp_w32_mask(chip->virt,
+ XWAY_STP_ADSL_MASK << XWAY_STP_ADSL_SHIFT,
+ chip->dsl << XWAY_STP_ADSL_SHIFT,
+ XWAY_STP_CON0);
+
+ /* tell the hardware which pins are controlled by the phys */
+ xway_stp_w32_mask(chip->virt,
+ XWAY_STP_PHY_MASK << XWAY_STP_PHY1_SHIFT,
+ chip->phy1 << XWAY_STP_PHY1_SHIFT,
+ XWAY_STP_CON0);
+ xway_stp_w32_mask(chip->virt,
+ XWAY_STP_PHY_MASK << XWAY_STP_PHY2_SHIFT,
+ chip->phy2 << XWAY_STP_PHY2_SHIFT,
+ XWAY_STP_CON1);
+
+ /* mask out the hw driven bits in gpio_request */
+ chip->reserved = (chip->phy2 << 5) | (chip->phy1 << 2) | chip->dsl;
+
+ /*
+ * if we have pins that are driven by hw, we need to tell the stp what
+ * clock to use as a timer.
+ */
+ if (chip->reserved)
+ xway_stp_w32_mask(chip->virt, XWAY_STP_UPD_MASK,
+ XWAY_STP_UPD_FPI, XWAY_STP_CON1);
+
+ return 0;
+}
+
+static int __devinit xway_stp_probe(struct platform_device *pdev)
+{
+ struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ const __be32 *shadow, *groups, *dsl, *phy;
+ struct xway_stp *chip;
+ struct clk *clk;
+ int ret = 0;
+
+ if (!res) {
+ dev_err(&pdev->dev, "failed to request STP resource\n");
+ return -ENOENT;
+ }
+
+ chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL);
+ if (!chip)
+ return -ENOMEM;
+
+ chip->virt = devm_request_and_ioremap(&pdev->dev, res);
+ if (!chip->virt) {
+ dev_err(&pdev->dev, "failed to remap STP memory\n");
+ return -ENOMEM;
+ }
+ chip->gc.dev = &pdev->dev;
+ chip->gc.label = "stp-xway";
+ chip->gc.direction_output = xway_stp_dir_out;
+ chip->gc.set = xway_stp_set;
+ chip->gc.request = xway_stp_request;
+ chip->gc.base = -1;
+ chip->gc.owner = THIS_MODULE;
+
+ /* store the shadow value if one was passed by the devicetree */
+ shadow = of_get_property(pdev->dev.of_node, "lantiq,shadow", NULL);
+ if (shadow)
+ chip->shadow = be32_to_cpu(*shadow);
+
+ /* find out which gpio groups should be enabled */
+ groups = of_get_property(pdev->dev.of_node, "lantiq,groups", NULL);
+ if (groups)
+ chip->groups = be32_to_cpu(*groups) & XWAY_STP_GROUP_MASK;
+ else
+ chip->groups = XWAY_STP_GROUP0;
+ chip->gc.ngpio = fls(chip->groups) * 8;
+
+ /* find out which gpios are controlled by the dsl core */
+ dsl = of_get_property(pdev->dev.of_node, "lantiq,dsl", NULL);
+ if (dsl)
+ chip->dsl = be32_to_cpu(*dsl) & XWAY_STP_ADSL_MASK;
+
+ /* find out which gpios are controlled by the phys */
+ if (of_machine_is_compatible("lantiq,ar9") ||
+ of_machine_is_compatible("lantiq,gr9") ||
+ of_machine_is_compatible("lantiq,vr9")) {
+ phy = of_get_property(pdev->dev.of_node, "lantiq,phy1", NULL);
+ if (phy)
+ chip->phy1 = be32_to_cpu(*phy) & XWAY_STP_PHY_MASK;
+ phy = of_get_property(pdev->dev.of_node, "lantiq,phy2", NULL);
+ if (phy)
+ chip->phy2 = be32_to_cpu(*phy) & XWAY_STP_PHY_MASK;
+ }
+
+ /* check which edge trigger we should use, default to a falling edge */
+ if (!of_find_property(pdev->dev.of_node, "lantiq,rising", NULL))
+ chip->edge = XWAY_STP_FALLING;
+
+ clk = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(clk)) {
+ dev_err(&pdev->dev, "Failed to get clock\n");
+ return PTR_ERR(clk);
+ }
+ clk_enable(clk);
+
+ ret = xway_stp_hw_init(chip);
+ if (!ret)
+ ret = gpiochip_add(&chip->gc);
+
+ if (!ret)
+ dev_info(&pdev->dev, "Init done\n");
+
+ return ret;
+}
+
+static const struct of_device_id xway_stp_match[] = {
+ { .compatible = "lantiq,gpio-stp-xway" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, xway_stp_match);
+
+static struct platform_driver xway_stp_driver = {
+ .probe = xway_stp_probe,
+ .driver = {
+ .name = "gpio-stp-xway",
+ .owner = THIS_MODULE,
+ .of_match_table = xway_stp_match,
+ },
+};
+
+int __init xway_stp_init(void)
+{
+ return platform_driver_register(&xway_stp_driver);
+}
+
+subsys_initcall(xway_stp_init);
#include <linux/errno.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
+#include <linux/platform_device.h>
#include <linux/mfd/tps65910.h>
+#include <linux/of_device.h>
+
+struct tps65910_gpio {
+ struct gpio_chip gpio_chip;
+ struct tps65910 *tps65910;
+};
+
+static inline struct tps65910_gpio *to_tps65910_gpio(struct gpio_chip *chip)
+{
+ return container_of(chip, struct tps65910_gpio, gpio_chip);
+}
static int tps65910_gpio_get(struct gpio_chip *gc, unsigned offset)
{
- struct tps65910 *tps65910 = container_of(gc, struct tps65910, gpio);
- uint8_t val;
+ struct tps65910_gpio *tps65910_gpio = to_tps65910_gpio(gc);
+ struct tps65910 *tps65910 = tps65910_gpio->tps65910;
+ unsigned int val;
- tps65910->read(tps65910, TPS65910_GPIO0 + offset, 1, &val);
+ tps65910_reg_read(tps65910, TPS65910_GPIO0 + offset, &val);
if (val & GPIO_STS_MASK)
return 1;
static void tps65910_gpio_set(struct gpio_chip *gc, unsigned offset,
int value)
{
- struct tps65910 *tps65910 = container_of(gc, struct tps65910, gpio);
+ struct tps65910_gpio *tps65910_gpio = to_tps65910_gpio(gc);
+ struct tps65910 *tps65910 = tps65910_gpio->tps65910;
if (value)
- tps65910_set_bits(tps65910, TPS65910_GPIO0 + offset,
+ tps65910_reg_set_bits(tps65910, TPS65910_GPIO0 + offset,
GPIO_SET_MASK);
else
- tps65910_clear_bits(tps65910, TPS65910_GPIO0 + offset,
+ tps65910_reg_clear_bits(tps65910, TPS65910_GPIO0 + offset,
GPIO_SET_MASK);
}
static int tps65910_gpio_output(struct gpio_chip *gc, unsigned offset,
int value)
{
- struct tps65910 *tps65910 = container_of(gc, struct tps65910, gpio);
+ struct tps65910_gpio *tps65910_gpio = to_tps65910_gpio(gc);
+ struct tps65910 *tps65910 = tps65910_gpio->tps65910;
/* Set the initial value */
tps65910_gpio_set(gc, offset, value);
- return tps65910_set_bits(tps65910, TPS65910_GPIO0 + offset,
+ return tps65910_reg_set_bits(tps65910, TPS65910_GPIO0 + offset,
GPIO_CFG_MASK);
}
static int tps65910_gpio_input(struct gpio_chip *gc, unsigned offset)
{
- struct tps65910 *tps65910 = container_of(gc, struct tps65910, gpio);
+ struct tps65910_gpio *tps65910_gpio = to_tps65910_gpio(gc);
+ struct tps65910 *tps65910 = tps65910_gpio->tps65910;
- return tps65910_clear_bits(tps65910, TPS65910_GPIO0 + offset,
+ return tps65910_reg_clear_bits(tps65910, TPS65910_GPIO0 + offset,
GPIO_CFG_MASK);
}
-void tps65910_gpio_init(struct tps65910 *tps65910, int gpio_base)
+#ifdef CONFIG_OF
+static struct tps65910_board *tps65910_parse_dt_for_gpio(struct device *dev,
+ struct tps65910 *tps65910, int chip_ngpio)
{
+ struct tps65910_board *tps65910_board = tps65910->of_plat_data;
+ unsigned int prop_array[TPS6591X_MAX_NUM_GPIO];
+ int ngpio = min(chip_ngpio, TPS6591X_MAX_NUM_GPIO);
int ret;
- struct tps65910_board *board_data;
+ int idx;
+
+ tps65910_board->gpio_base = -1;
+ ret = of_property_read_u32_array(tps65910->dev->of_node,
+ "ti,en-gpio-sleep", prop_array, ngpio);
+ if (ret < 0) {
+ dev_dbg(dev, "ti,en-gpio-sleep not specified\n");
+ return tps65910_board;
+ }
- if (!gpio_base)
- return;
+ for (idx = 0; idx < ngpio; idx++)
+ tps65910_board->en_gpio_sleep[idx] = (prop_array[idx] != 0);
- tps65910->gpio.owner = THIS_MODULE;
- tps65910->gpio.label = tps65910->i2c_client->name;
- tps65910->gpio.dev = tps65910->dev;
- tps65910->gpio.base = gpio_base;
+ return tps65910_board;
+}
+#else
+static struct tps65910_board *tps65910_parse_dt_for_gpio(struct device *dev,
+ struct tps65910 *tps65910, int chip_ngpio)
+{
+ return NULL;
+}
+#endif
+
+static int __devinit tps65910_gpio_probe(struct platform_device *pdev)
+{
+ struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
+ struct tps65910_board *pdata = dev_get_platdata(tps65910->dev);
+ struct tps65910_gpio *tps65910_gpio;
+ int ret;
+ int i;
+
+ tps65910_gpio = devm_kzalloc(&pdev->dev,
+ sizeof(*tps65910_gpio), GFP_KERNEL);
+ if (!tps65910_gpio) {
+ dev_err(&pdev->dev, "Could not allocate tps65910_gpio\n");
+ return -ENOMEM;
+ }
+
+ tps65910_gpio->tps65910 = tps65910;
+
+ tps65910_gpio->gpio_chip.owner = THIS_MODULE;
+ tps65910_gpio->gpio_chip.label = tps65910->i2c_client->name;
switch(tps65910_chip_id(tps65910)) {
case TPS65910:
- tps65910->gpio.ngpio = TPS65910_NUM_GPIO;
+ tps65910_gpio->gpio_chip.ngpio = TPS65910_NUM_GPIO;
break;
case TPS65911:
- tps65910->gpio.ngpio = TPS65911_NUM_GPIO;
+ tps65910_gpio->gpio_chip.ngpio = TPS65911_NUM_GPIO;
break;
default:
- return;
+ return -EINVAL;
+ }
+ tps65910_gpio->gpio_chip.can_sleep = 1;
+ tps65910_gpio->gpio_chip.direction_input = tps65910_gpio_input;
+ tps65910_gpio->gpio_chip.direction_output = tps65910_gpio_output;
+ tps65910_gpio->gpio_chip.set = tps65910_gpio_set;
+ tps65910_gpio->gpio_chip.get = tps65910_gpio_get;
+ tps65910_gpio->gpio_chip.dev = &pdev->dev;
+ if (pdata && pdata->gpio_base)
+ tps65910_gpio->gpio_chip.base = pdata->gpio_base;
+ else
+ tps65910_gpio->gpio_chip.base = -1;
+
+ if (!pdata && tps65910->dev->of_node)
+ pdata = tps65910_parse_dt_for_gpio(&pdev->dev, tps65910,
+ tps65910_gpio->gpio_chip.ngpio);
+
+ if (!pdata)
+ goto skip_init;
+
+ /* Configure sleep control for gpios if provided */
+ for (i = 0; i < tps65910_gpio->gpio_chip.ngpio; ++i) {
+ if (!pdata->en_gpio_sleep[i])
+ continue;
+
+ ret = tps65910_reg_set_bits(tps65910,
+ TPS65910_GPIO0 + i, GPIO_SLEEP_MASK);
+ if (ret < 0)
+ dev_warn(tps65910->dev,
+ "GPIO Sleep setting failed with err %d\n", ret);
}
- tps65910->gpio.can_sleep = 1;
-
- tps65910->gpio.direction_input = tps65910_gpio_input;
- tps65910->gpio.direction_output = tps65910_gpio_output;
- tps65910->gpio.set = tps65910_gpio_set;
- tps65910->gpio.get = tps65910_gpio_get;
-
- /* Configure sleep control for gpios */
- board_data = dev_get_platdata(tps65910->dev);
- if (board_data) {
- int i;
- for (i = 0; i < tps65910->gpio.ngpio; ++i) {
- if (board_data->en_gpio_sleep[i]) {
- ret = tps65910_set_bits(tps65910,
- TPS65910_GPIO0 + i, GPIO_SLEEP_MASK);
- if (ret < 0)
- dev_warn(tps65910->dev,
- "GPIO Sleep setting failed\n");
- }
- }
+
+skip_init:
+ ret = gpiochip_add(&tps65910_gpio->gpio_chip);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret);
+ return ret;
}
- ret = gpiochip_add(&tps65910->gpio);
+ platform_set_drvdata(pdev, tps65910_gpio);
+
+ return ret;
+}
+
+static int __devexit tps65910_gpio_remove(struct platform_device *pdev)
+{
+ struct tps65910_gpio *tps65910_gpio = platform_get_drvdata(pdev);
- if (ret)
- dev_warn(tps65910->dev, "GPIO registration failed: %d\n", ret);
+ return gpiochip_remove(&tps65910_gpio->gpio_chip);
}
+
+static struct platform_driver tps65910_gpio_driver = {
+ .driver.name = "tps65910-gpio",
+ .driver.owner = THIS_MODULE,
+ .probe = tps65910_gpio_probe,
+ .remove = __devexit_p(tps65910_gpio_remove),
+};
+
+static int __init tps65910_gpio_init(void)
+{
+ return platform_driver_register(&tps65910_gpio_driver);
+}
+subsys_initcall(tps65910_gpio_init);
+
+static void __exit tps65910_gpio_exit(void)
+{
+ platform_driver_unregister(&tps65910_gpio_driver);
+}
+module_exit(tps65910_gpio_exit);
+
+MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
+MODULE_AUTHOR("Jorge Eduardo Candelaria jedu@slimlogic.co.uk>");
+MODULE_DESCRIPTION("GPIO interface for TPS65910/TPS6511 PMICs");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:tps65910-gpio");
struct wm831x_gpio *wm831x_gpio = to_wm831x_gpio(chip);
struct wm831x *wm831x = wm831x_gpio->wm831x;
- if (!wm831x->irq_base)
- return -EINVAL;
-
- return wm831x->irq_base + WM831X_IRQ_GPIO_1 + offset;
+ return irq_create_mapping(wm831x->irq_domain,
+ WM831X_IRQ_GPIO_1 + offset);
}
static int wm831x_gpio_set_debounce(struct gpio_chip *chip, unsigned offset,
return -EINVAL;
/* This is all entirely broken */
- down_write(¤t->mm->mmap_sem);
old_fops = file_priv->filp->f_op;
file_priv->filp->f_op = &i810_buffer_fops;
dev_priv->mmap_buffer = buf;
- buf_priv->virtual = (void *)do_mmap(file_priv->filp, 0, buf->total,
+ buf_priv->virtual = (void *)vm_mmap(file_priv->filp, 0, buf->total,
PROT_READ | PROT_WRITE,
MAP_SHARED, buf->bus_address);
dev_priv->mmap_buffer = NULL;
retcode = PTR_ERR(buf_priv->virtual);
buf_priv->virtual = NULL;
}
- up_write(¤t->mm->mmap_sem);
return retcode;
}
/* prime dma-buf support */
struct sg_table *sg_table;
+ void *dma_buf_vmapping;
+ int vmapping_count;
+
/**
* Used for performing relocations during execbuffer insertion.
*/
}
}
+static void *i915_gem_dmabuf_vmap(struct dma_buf *dma_buf)
+{
+ struct drm_i915_gem_object *obj = dma_buf->priv;
+ struct drm_device *dev = obj->base.dev;
+ int ret;
+
+ ret = i915_mutex_lock_interruptible(dev);
+ if (ret)
+ return ERR_PTR(ret);
+
+ if (obj->dma_buf_vmapping) {
+ obj->vmapping_count++;
+ goto out_unlock;
+ }
+
+ if (!obj->pages) {
+ ret = i915_gem_object_get_pages_gtt(obj, __GFP_NORETRY | __GFP_NOWARN);
+ if (ret) {
+ mutex_unlock(&dev->struct_mutex);
+ return ERR_PTR(ret);
+ }
+ }
+
+ obj->dma_buf_vmapping = vmap(obj->pages, obj->base.size / PAGE_SIZE, 0, PAGE_KERNEL);
+ if (!obj->dma_buf_vmapping) {
+ DRM_ERROR("failed to vmap object\n");
+ goto out_unlock;
+ }
+
+ obj->vmapping_count = 1;
+out_unlock:
+ mutex_unlock(&dev->struct_mutex);
+ return obj->dma_buf_vmapping;
+}
+
+static void i915_gem_dmabuf_vunmap(struct dma_buf *dma_buf, void *vaddr)
+{
+ struct drm_i915_gem_object *obj = dma_buf->priv;
+ struct drm_device *dev = obj->base.dev;
+ int ret;
+
+ ret = i915_mutex_lock_interruptible(dev);
+ if (ret)
+ return;
+
+ --obj->vmapping_count;
+ if (obj->vmapping_count == 0) {
+ vunmap(obj->dma_buf_vmapping);
+ obj->dma_buf_vmapping = NULL;
+ }
+ mutex_unlock(&dev->struct_mutex);
+}
+
static void *i915_gem_dmabuf_kmap_atomic(struct dma_buf *dma_buf, unsigned long page_num)
{
return NULL;
}
+static int i915_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma)
+{
+ return -EINVAL;
+}
+
static const struct dma_buf_ops i915_dmabuf_ops = {
.map_dma_buf = i915_gem_map_dma_buf,
.unmap_dma_buf = i915_gem_unmap_dma_buf,
.kmap_atomic = i915_gem_dmabuf_kmap_atomic,
.kunmap = i915_gem_dmabuf_kunmap,
.kunmap_atomic = i915_gem_dmabuf_kunmap_atomic,
+ .mmap = i915_gem_dmabuf_mmap,
+ .vmap = i915_gem_dmabuf_vmap,
+ .vunmap = i915_gem_dmabuf_vunmap,
};
struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
struct drm_gem_object *gem;
int pin_refcnt;
+
+ struct ttm_bo_kmap_obj dma_buf_vmap;
+ int vmapping_count;
};
#define nouveau_bo_tile_layout(nvbo) \
}
+static int nouveau_gem_prime_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma)
+{
+ return -EINVAL;
+}
+
+static void *nouveau_gem_prime_vmap(struct dma_buf *dma_buf)
+{
+ struct nouveau_bo *nvbo = dma_buf->priv;
+ struct drm_device *dev = nvbo->gem->dev;
+ int ret;
+
+ mutex_lock(&dev->struct_mutex);
+ if (nvbo->vmapping_count) {
+ nvbo->vmapping_count++;
+ goto out_unlock;
+ }
+
+ ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.num_pages,
+ &nvbo->dma_buf_vmap);
+ if (ret) {
+ mutex_unlock(&dev->struct_mutex);
+ return ERR_PTR(ret);
+ }
+ nvbo->vmapping_count = 1;
+out_unlock:
+ mutex_unlock(&dev->struct_mutex);
+ return nvbo->dma_buf_vmap.virtual;
+}
+
+static void nouveau_gem_prime_vunmap(struct dma_buf *dma_buf, void *vaddr)
+{
+ struct nouveau_bo *nvbo = dma_buf->priv;
+ struct drm_device *dev = nvbo->gem->dev;
+
+ mutex_lock(&dev->struct_mutex);
+ nvbo->vmapping_count--;
+ if (nvbo->vmapping_count == 0) {
+ ttm_bo_kunmap(&nvbo->dma_buf_vmap);
+ }
+ mutex_unlock(&dev->struct_mutex);
+}
+
static const struct dma_buf_ops nouveau_dmabuf_ops = {
.map_dma_buf = nouveau_gem_map_dma_buf,
.unmap_dma_buf = nouveau_gem_unmap_dma_buf,
.kmap_atomic = nouveau_gem_kmap_atomic,
.kunmap = nouveau_gem_kunmap,
.kunmap_atomic = nouveau_gem_kunmap_atomic,
+ .mmap = nouveau_gem_prime_mmap,
+ .vmap = nouveau_gem_prime_vmap,
+ .vunmap = nouveau_gem_prime_vunmap,
};
static int
/* Constant after initialization */
struct radeon_device *rdev;
struct drm_gem_object gem_base;
+
+ struct ttm_bo_kmap_obj dma_buf_vmap;
+ int vmapping_count;
};
#define gem_to_radeon_bo(gobj) container_of((gobj), struct radeon_bo, gem_base)
}
+static int radeon_gem_prime_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma)
+{
+ return -EINVAL;
+}
+
+static void *radeon_gem_prime_vmap(struct dma_buf *dma_buf)
+{
+ struct radeon_bo *bo = dma_buf->priv;
+ struct drm_device *dev = bo->rdev->ddev;
+ int ret;
+
+ mutex_lock(&dev->struct_mutex);
+ if (bo->vmapping_count) {
+ bo->vmapping_count++;
+ goto out_unlock;
+ }
+
+ ret = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.num_pages,
+ &bo->dma_buf_vmap);
+ if (ret) {
+ mutex_unlock(&dev->struct_mutex);
+ return ERR_PTR(ret);
+ }
+ bo->vmapping_count = 1;
+out_unlock:
+ mutex_unlock(&dev->struct_mutex);
+ return bo->dma_buf_vmap.virtual;
+}
+
+static void radeon_gem_prime_vunmap(struct dma_buf *dma_buf, void *vaddr)
+{
+ struct radeon_bo *bo = dma_buf->priv;
+ struct drm_device *dev = bo->rdev->ddev;
+
+ mutex_lock(&dev->struct_mutex);
+ bo->vmapping_count--;
+ if (bo->vmapping_count == 0) {
+ ttm_bo_kunmap(&bo->dma_buf_vmap);
+ }
+ mutex_unlock(&dev->struct_mutex);
+}
const static struct dma_buf_ops radeon_dmabuf_ops = {
.map_dma_buf = radeon_gem_map_dma_buf,
.unmap_dma_buf = radeon_gem_unmap_dma_buf,
.kmap_atomic = radeon_gem_kmap_atomic,
.kunmap = radeon_gem_kunmap,
.kunmap_atomic = radeon_gem_kunmap_atomic,
+ .mmap = radeon_gem_prime_mmap,
+ .vmap = radeon_gem_prime_vmap,
+ .vunmap = radeon_gem_prime_vunmap,
};
static int radeon_prime_create(struct drm_device *dev,
if (!fb->active_16)
return 0;
- if (!fb->obj->vmapping)
- udl_gem_vmap(fb->obj);
+ if (!fb->obj->vmapping) {
+ ret = udl_gem_vmap(fb->obj);
+ if (ret == -ENOMEM) {
+ DRM_ERROR("failed to vmap fb\n");
+ return 0;
+ }
+ if (!fb->obj->vmapping) {
+ DRM_ERROR("failed to vmapping\n");
+ return 0;
+ }
+ }
start_cycles = get_cycles();
int page_count = obj->base.size / PAGE_SIZE;
int ret;
+ if (obj->base.import_attach) {
+ ret = dma_buf_begin_cpu_access(obj->base.import_attach->dmabuf,
+ 0, obj->base.size, DMA_BIDIRECTIONAL);
+ if (ret)
+ return -EINVAL;
+
+ obj->vmapping = dma_buf_vmap(obj->base.import_attach->dmabuf);
+ if (!obj->vmapping)
+ return -ENOMEM;
+ return 0;
+ }
+
ret = udl_gem_get_pages(obj, GFP_KERNEL);
if (ret)
return ret;
void udl_gem_vunmap(struct udl_gem_object *obj)
{
+ if (obj->base.import_attach) {
+ dma_buf_vunmap(obj->base.import_attach->dmabuf, obj->vmapping);
+ dma_buf_end_cpu_access(obj->base.import_attach->dmabuf, 0,
+ obj->base.size, DMA_BIDIRECTIONAL);
+ return;
+ }
+
if (obj->vmapping)
vunmap(obj->vmapping);
{
struct udl_gem_object *obj = to_udl_bo(gem_obj);
- if (gem_obj->import_attach)
- drm_prime_gem_destroy(gem_obj, obj->sg);
-
if (obj->vmapping)
udl_gem_vunmap(obj);
+ if (gem_obj->import_attach)
+ drm_prime_gem_destroy(gem_obj, obj->sg);
+
if (obj->pages)
udl_gem_put_pages(obj);
config SENSORS_SCH5627
tristate "SMSC SCH5627"
- depends on !PPC
+ depends on !PPC && WATCHDOG
select SENSORS_SCH56XX_COMMON
+ select WATCHDOG_CORE
help
If you say yes here you get support for the hardware monitoring
features of the SMSC SCH5627 Super-I/O chip including support for
config SENSORS_SCH5636
tristate "SMSC SCH5636"
- depends on !PPC
+ depends on !PPC && WATCHDOG
select SENSORS_SCH56XX_COMMON
+ select WATCHDOG_CORE
help
SMSC SCH5636 Super I/O chips include an embedded microcontroller for
hardware monitoring solutions, allowing motherboard manufacturers to
}
/* Note failing to register the watchdog is not a fatal error */
- data->watchdog = sch56xx_watchdog_register(data->addr,
+ data->watchdog = sch56xx_watchdog_register(&pdev->dev, data->addr,
(build_code << 24) | (build_id << 8) | hwmon_rev,
&data->update_lock, 1);
}
/* Note failing to register the watchdog is not a fatal error */
- data->watchdog = sch56xx_watchdog_register(data->addr,
+ data->watchdog = sch56xx_watchdog_register(&pdev->dev, data->addr,
(revision[0] << 8) | revision[1],
&data->update_lock, 0);
struct sch56xx_watchdog_data {
u16 addr;
- u32 revision;
struct mutex *io_lock;
- struct mutex watchdog_lock;
- struct list_head list; /* member of the watchdog_data_list */
struct kref kref;
- struct miscdevice watchdog_miscdev;
- unsigned long watchdog_is_open;
- char watchdog_name[10]; /* must be unique to avoid sysfs conflict */
- char watchdog_expect_close;
+ struct watchdog_info wdinfo;
+ struct watchdog_device wddev;
u8 watchdog_preset;
u8 watchdog_control;
u8 watchdog_output_enable;
static struct platform_device *sch56xx_pdev;
-/*
- * Somewhat ugly :( global data pointer list with all sch56xx devices, so that
- * we can find our device data as when using misc_register there is no other
- * method to get to ones device data from the open fop.
- */
-static LIST_HEAD(watchdog_data_list);
-/* Note this lock not only protect list access, but also data.kref access */
-static DEFINE_MUTEX(watchdog_data_mutex);
-
/* Super I/O functions */
static inline int superio_inb(int base, int reg)
{
* Watchdog routines
*/
-/*
- * Release our data struct when the platform device has been released *and*
- * all references to our watchdog device are released.
- */
-static void sch56xx_watchdog_release_resources(struct kref *r)
+/* Release our data struct when we're unregistered *and*
+ all references to our watchdog device are released */
+static void watchdog_release_resources(struct kref *r)
{
struct sch56xx_watchdog_data *data =
container_of(r, struct sch56xx_watchdog_data, kref);
kfree(data);
}
-static int watchdog_set_timeout(struct sch56xx_watchdog_data *data,
- int timeout)
+static int watchdog_set_timeout(struct watchdog_device *wddev,
+ unsigned int timeout)
{
- int ret, resolution;
+ struct sch56xx_watchdog_data *data = watchdog_get_drvdata(wddev);
+ unsigned int resolution;
u8 control;
+ int ret;
/* 1 second or 60 second resolution? */
if (timeout <= 255)
if (timeout < resolution || timeout > (resolution * 255))
return -EINVAL;
- mutex_lock(&data->watchdog_lock);
- if (!data->addr) {
- ret = -ENODEV;
- goto leave;
- }
-
if (resolution == 1)
control = data->watchdog_control | SCH56XX_WDOG_TIME_BASE_SEC;
else
control);
mutex_unlock(data->io_lock);
if (ret)
- goto leave;
+ return ret;
data->watchdog_control = control;
}
* the watchdog countdown.
*/
data->watchdog_preset = DIV_ROUND_UP(timeout, resolution);
+ wddev->timeout = data->watchdog_preset * resolution;
- ret = data->watchdog_preset * resolution;
-leave:
- mutex_unlock(&data->watchdog_lock);
- return ret;
-}
-
-static int watchdog_get_timeout(struct sch56xx_watchdog_data *data)
-{
- int timeout;
-
- mutex_lock(&data->watchdog_lock);
- if (data->watchdog_control & SCH56XX_WDOG_TIME_BASE_SEC)
- timeout = data->watchdog_preset;
- else
- timeout = data->watchdog_preset * 60;
- mutex_unlock(&data->watchdog_lock);
-
- return timeout;
+ return 0;
}
-static int watchdog_start(struct sch56xx_watchdog_data *data)
+static int watchdog_start(struct watchdog_device *wddev)
{
+ struct sch56xx_watchdog_data *data = watchdog_get_drvdata(wddev);
int ret;
u8 val;
- mutex_lock(&data->watchdog_lock);
- if (!data->addr) {
- ret = -ENODEV;
- goto leave_unlock_watchdog;
- }
-
/*
* The sch56xx's watchdog cannot really be started / stopped
* it is always running, but we can avoid the timer expiring
if (ret)
goto leave;
- /* 2. Enable output (if not already enabled) */
- if (!(data->watchdog_output_enable & SCH56XX_WDOG_OUTPUT_ENABLE)) {
- val = data->watchdog_output_enable |
- SCH56XX_WDOG_OUTPUT_ENABLE;
- ret = sch56xx_write_virtual_reg(data->addr,
- SCH56XX_REG_WDOG_OUTPUT_ENABLE,
- val);
- if (ret)
- goto leave;
+ /* 2. Enable output */
+ val = data->watchdog_output_enable | SCH56XX_WDOG_OUTPUT_ENABLE;
+ ret = sch56xx_write_virtual_reg(data->addr,
+ SCH56XX_REG_WDOG_OUTPUT_ENABLE, val);
+ if (ret)
+ goto leave;
- data->watchdog_output_enable = val;
- }
+ data->watchdog_output_enable = val;
/* 3. Clear the watchdog event bit if set */
val = inb(data->addr + 9);
leave:
mutex_unlock(data->io_lock);
-leave_unlock_watchdog:
- mutex_unlock(&data->watchdog_lock);
return ret;
}
-static int watchdog_trigger(struct sch56xx_watchdog_data *data)
+static int watchdog_trigger(struct watchdog_device *wddev)
{
+ struct sch56xx_watchdog_data *data = watchdog_get_drvdata(wddev);
int ret;
- mutex_lock(&data->watchdog_lock);
- if (!data->addr) {
- ret = -ENODEV;
- goto leave;
- }
-
/* Reset the watchdog countdown counter */
mutex_lock(data->io_lock);
ret = sch56xx_write_virtual_reg(data->addr, SCH56XX_REG_WDOG_PRESET,
data->watchdog_preset);
mutex_unlock(data->io_lock);
-leave:
- mutex_unlock(&data->watchdog_lock);
+
return ret;
}
-static int watchdog_stop_unlocked(struct sch56xx_watchdog_data *data)
+static int watchdog_stop(struct watchdog_device *wddev)
{
+ struct sch56xx_watchdog_data *data = watchdog_get_drvdata(wddev);
int ret = 0;
u8 val;
- if (!data->addr)
- return -ENODEV;
-
- if (data->watchdog_output_enable & SCH56XX_WDOG_OUTPUT_ENABLE) {
- val = data->watchdog_output_enable &
- ~SCH56XX_WDOG_OUTPUT_ENABLE;
- mutex_lock(data->io_lock);
- ret = sch56xx_write_virtual_reg(data->addr,
- SCH56XX_REG_WDOG_OUTPUT_ENABLE,
- val);
- mutex_unlock(data->io_lock);
- if (ret)
- return ret;
-
- data->watchdog_output_enable = val;
- }
-
- return ret;
-}
-
-static int watchdog_stop(struct sch56xx_watchdog_data *data)
-{
- int ret;
-
- mutex_lock(&data->watchdog_lock);
- ret = watchdog_stop_unlocked(data);
- mutex_unlock(&data->watchdog_lock);
-
- return ret;
-}
-
-static int watchdog_release(struct inode *inode, struct file *filp)
-{
- struct sch56xx_watchdog_data *data = filp->private_data;
-
- if (data->watchdog_expect_close) {
- watchdog_stop(data);
- data->watchdog_expect_close = 0;
- } else {
- watchdog_trigger(data);
- pr_crit("unexpected close, not stopping watchdog!\n");
- }
-
- clear_bit(0, &data->watchdog_is_open);
-
- mutex_lock(&watchdog_data_mutex);
- kref_put(&data->kref, sch56xx_watchdog_release_resources);
- mutex_unlock(&watchdog_data_mutex);
+ val = data->watchdog_output_enable & ~SCH56XX_WDOG_OUTPUT_ENABLE;
+ mutex_lock(data->io_lock);
+ ret = sch56xx_write_virtual_reg(data->addr,
+ SCH56XX_REG_WDOG_OUTPUT_ENABLE, val);
+ mutex_unlock(data->io_lock);
+ if (ret)
+ return ret;
+ data->watchdog_output_enable = val;
return 0;
}
-static int watchdog_open(struct inode *inode, struct file *filp)
+static void watchdog_ref(struct watchdog_device *wddev)
{
- struct sch56xx_watchdog_data *pos, *data = NULL;
- int ret, watchdog_is_open;
-
- /*
- * We get called from drivers/char/misc.c with misc_mtx hold, and we
- * call misc_register() from sch56xx_watchdog_probe() with
- * watchdog_data_mutex hold, as misc_register() takes the misc_mtx
- * lock, this is a possible deadlock, so we use mutex_trylock here.
- */
- if (!mutex_trylock(&watchdog_data_mutex))
- return -ERESTARTSYS;
- list_for_each_entry(pos, &watchdog_data_list, list) {
- if (pos->watchdog_miscdev.minor == iminor(inode)) {
- data = pos;
- break;
- }
- }
- /* Note we can never not have found data, so we don't check for this */
- watchdog_is_open = test_and_set_bit(0, &data->watchdog_is_open);
- if (!watchdog_is_open)
- kref_get(&data->kref);
- mutex_unlock(&watchdog_data_mutex);
-
- if (watchdog_is_open)
- return -EBUSY;
-
- filp->private_data = data;
-
- /* Start the watchdog */
- ret = watchdog_start(data);
- if (ret) {
- watchdog_release(inode, filp);
- return ret;
- }
+ struct sch56xx_watchdog_data *data = watchdog_get_drvdata(wddev);
- return nonseekable_open(inode, filp);
+ kref_get(&data->kref);
}
-static ssize_t watchdog_write(struct file *filp, const char __user *buf,
- size_t count, loff_t *offset)
+static void watchdog_unref(struct watchdog_device *wddev)
{
- int ret;
- struct sch56xx_watchdog_data *data = filp->private_data;
-
- if (count) {
- if (!nowayout) {
- size_t i;
-
- /* Clear it in case it was set with a previous write */
- data->watchdog_expect_close = 0;
-
- for (i = 0; i != count; i++) {
- char c;
- if (get_user(c, buf + i))
- return -EFAULT;
- if (c == 'V')
- data->watchdog_expect_close = 1;
- }
- }
- ret = watchdog_trigger(data);
- if (ret)
- return ret;
- }
- return count;
-}
-
-static long watchdog_ioctl(struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- struct watchdog_info ident = {
- .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT,
- .identity = "sch56xx watchdog"
- };
- int i, ret = 0;
- struct sch56xx_watchdog_data *data = filp->private_data;
-
- switch (cmd) {
- case WDIOC_GETSUPPORT:
- ident.firmware_version = data->revision;
- if (!nowayout)
- ident.options |= WDIOF_MAGICCLOSE;
- if (copy_to_user((void __user *)arg, &ident, sizeof(ident)))
- ret = -EFAULT;
- break;
-
- case WDIOC_GETSTATUS:
- case WDIOC_GETBOOTSTATUS:
- ret = put_user(0, (int __user *)arg);
- break;
-
- case WDIOC_KEEPALIVE:
- ret = watchdog_trigger(data);
- break;
+ struct sch56xx_watchdog_data *data = watchdog_get_drvdata(wddev);
- case WDIOC_GETTIMEOUT:
- i = watchdog_get_timeout(data);
- ret = put_user(i, (int __user *)arg);
- break;
-
- case WDIOC_SETTIMEOUT:
- if (get_user(i, (int __user *)arg)) {
- ret = -EFAULT;
- break;
- }
- ret = watchdog_set_timeout(data, i);
- if (ret >= 0)
- ret = put_user(ret, (int __user *)arg);
- break;
-
- case WDIOC_SETOPTIONS:
- if (get_user(i, (int __user *)arg)) {
- ret = -EFAULT;
- break;
- }
-
- if (i & WDIOS_DISABLECARD)
- ret = watchdog_stop(data);
- else if (i & WDIOS_ENABLECARD)
- ret = watchdog_trigger(data);
- else
- ret = -EINVAL;
- break;
-
- default:
- ret = -ENOTTY;
- }
- return ret;
+ kref_put(&data->kref, watchdog_release_resources);
}
-static const struct file_operations watchdog_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .open = watchdog_open,
- .release = watchdog_release,
- .write = watchdog_write,
- .unlocked_ioctl = watchdog_ioctl,
+static const struct watchdog_ops watchdog_ops = {
+ .owner = THIS_MODULE,
+ .start = watchdog_start,
+ .stop = watchdog_stop,
+ .ping = watchdog_trigger,
+ .set_timeout = watchdog_set_timeout,
+ .ref = watchdog_ref,
+ .unref = watchdog_unref,
};
-struct sch56xx_watchdog_data *sch56xx_watchdog_register(
+struct sch56xx_watchdog_data *sch56xx_watchdog_register(struct device *parent,
u16 addr, u32 revision, struct mutex *io_lock, int check_enabled)
{
struct sch56xx_watchdog_data *data;
- int i, err, control, output_enable;
- const int watchdog_minors[] = { WATCHDOG_MINOR, 212, 213, 214, 215 };
+ int err, control, output_enable;
/* Cache the watchdog registers */
mutex_lock(io_lock);
return NULL;
data->addr = addr;
- data->revision = revision;
data->io_lock = io_lock;
- data->watchdog_control = control;
- data->watchdog_output_enable = output_enable;
- mutex_init(&data->watchdog_lock);
- INIT_LIST_HEAD(&data->list);
kref_init(&data->kref);
- err = watchdog_set_timeout(data, 60);
- if (err < 0)
- goto error;
-
- /*
- * We take the data_mutex lock early so that watchdog_open() cannot
- * run when misc_register() has completed, but we've not yet added
- * our data to the watchdog_data_list.
- */
- mutex_lock(&watchdog_data_mutex);
- for (i = 0; i < ARRAY_SIZE(watchdog_minors); i++) {
- /* Register our watchdog part */
- snprintf(data->watchdog_name, sizeof(data->watchdog_name),
- "watchdog%c", (i == 0) ? '\0' : ('0' + i));
- data->watchdog_miscdev.name = data->watchdog_name;
- data->watchdog_miscdev.fops = &watchdog_fops;
- data->watchdog_miscdev.minor = watchdog_minors[i];
- err = misc_register(&data->watchdog_miscdev);
- if (err == -EBUSY)
- continue;
- if (err)
- break;
+ strlcpy(data->wdinfo.identity, "sch56xx watchdog",
+ sizeof(data->wdinfo.identity));
+ data->wdinfo.firmware_version = revision;
+ data->wdinfo.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT;
+ if (!nowayout)
+ data->wdinfo.options |= WDIOF_MAGICCLOSE;
+
+ data->wddev.info = &data->wdinfo;
+ data->wddev.ops = &watchdog_ops;
+ data->wddev.parent = parent;
+ data->wddev.timeout = 60;
+ data->wddev.min_timeout = 1;
+ data->wddev.max_timeout = 255 * 60;
+ if (nowayout)
+ set_bit(WDOG_NO_WAY_OUT, &data->wddev.status);
+ if (output_enable & SCH56XX_WDOG_OUTPUT_ENABLE)
+ set_bit(WDOG_ACTIVE, &data->wddev.status);
+
+ /* Since the watchdog uses a downcounter there is no register to read
+ the BIOS set timeout from (if any was set at all) ->
+ Choose a preset which will give us a 1 minute timeout */
+ if (control & SCH56XX_WDOG_TIME_BASE_SEC)
+ data->watchdog_preset = 60; /* seconds */
+ else
+ data->watchdog_preset = 1; /* minute */
- list_add(&data->list, &watchdog_data_list);
- pr_info("Registered /dev/%s chardev major 10, minor: %d\n",
- data->watchdog_name, watchdog_minors[i]);
- break;
- }
- mutex_unlock(&watchdog_data_mutex);
+ data->watchdog_control = control;
+ data->watchdog_output_enable = output_enable;
+ watchdog_set_drvdata(&data->wddev, data);
+ err = watchdog_register_device(&data->wddev);
if (err) {
pr_err("Registering watchdog chardev: %d\n", err);
- goto error;
- }
- if (i == ARRAY_SIZE(watchdog_minors)) {
- pr_warn("Couldn't register watchdog (no free minor)\n");
- goto error;
+ kfree(data);
+ return NULL;
}
return data;
-
-error:
- kfree(data);
- return NULL;
}
EXPORT_SYMBOL(sch56xx_watchdog_register);
void sch56xx_watchdog_unregister(struct sch56xx_watchdog_data *data)
{
- mutex_lock(&watchdog_data_mutex);
- misc_deregister(&data->watchdog_miscdev);
- list_del(&data->list);
- mutex_unlock(&watchdog_data_mutex);
-
- mutex_lock(&data->watchdog_lock);
- if (data->watchdog_is_open) {
- pr_warn("platform device unregistered with watchdog "
- "open! Stopping watchdog.\n");
- watchdog_stop_unlocked(data);
- }
- /* Tell the wdog start/stop/trigger functions our dev is gone */
- data->addr = 0;
- data->io_lock = NULL;
- mutex_unlock(&data->watchdog_lock);
-
- mutex_lock(&watchdog_data_mutex);
- kref_put(&data->kref, sch56xx_watchdog_release_resources);
- mutex_unlock(&watchdog_data_mutex);
+ watchdog_unregister_device(&data->wddev);
+ kref_put(&data->kref, watchdog_release_resources);
+ /* Don't touch data after this it may have been free-ed! */
}
EXPORT_SYMBOL(sch56xx_watchdog_unregister);
int sch56xx_read_virtual_reg12(u16 addr, u16 msb_reg, u16 lsn_reg,
int high_nibble);
-struct sch56xx_watchdog_data *sch56xx_watchdog_register(
+struct sch56xx_watchdog_data *sch56xx_watchdog_register(struct device *parent,
u16 addr, u32 revision, struct mutex *io_lock, int check_enabled);
void sch56xx_watchdog_unregister(struct sch56xx_watchdog_data *data);
static u32 bit_func(struct i2c_adapter *adap)
{
- return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL |
+ return I2C_FUNC_I2C | I2C_FUNC_NOSTART | I2C_FUNC_SMBUS_EMUL |
I2C_FUNC_SMBUS_READ_BLOCK_DATA |
I2C_FUNC_SMBUS_BLOCK_PROC_CALL |
I2C_FUNC_10BIT_ADDR | I2C_FUNC_PROTOCOL_MANGLING;
/* declare our i2c functionality */
static u32 nuc900_i2c_func(struct i2c_adapter *adap)
{
- return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_PROTOCOL_MANGLING;
+ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_NOSTART |
+ I2C_FUNC_PROTOCOL_MANGLING;
}
/* i2c bus registration info */
/* declare our i2c functionality */
static u32 s3c24xx_i2c_func(struct i2c_adapter *adap)
{
- return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_PROTOCOL_MANGLING;
+ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_NOSTART |
+ I2C_FUNC_PROTOCOL_MANGLING;
}
/* i2c bus registration info */
res = 0;
for (i = 0; i < rdwr_arg.nmsgs; i++) {
- /* Limit the size of the message to a sane amount;
- * and don't let length change either. */
- if ((rdwr_pa[i].len > 8192) ||
- (rdwr_pa[i].flags & I2C_M_RECV_LEN)) {
+ /* Limit the size of the message to a sane amount */
+ if (rdwr_pa[i].len > 8192) {
res = -EINVAL;
break;
}
+
data_ptrs[i] = (u8 __user *)rdwr_pa[i].buf;
rdwr_pa[i].buf = memdup_user(data_ptrs[i], rdwr_pa[i].len);
if (IS_ERR(rdwr_pa[i].buf)) {
res = PTR_ERR(rdwr_pa[i].buf);
break;
}
+
+ /*
+ * If the message length is received from the slave (similar
+ * to SMBus block read), we must ensure that the buffer will
+ * be large enough to cope with a message length of
+ * I2C_SMBUS_BLOCK_MAX as this is the maximum underlying bus
+ * drivers allow. The first byte in the buffer must be
+ * pre-filled with the number of extra bytes, which must be
+ * at least one to hold the message length, but can be
+ * greater (for example to account for a checksum byte at
+ * the end of the message.)
+ */
+ if (rdwr_pa[i].flags & I2C_M_RECV_LEN) {
+ if (!(rdwr_pa[i].flags & I2C_M_RD) ||
+ rdwr_pa[i].buf[0] < 1 ||
+ rdwr_pa[i].len < rdwr_pa[i].buf[0] +
+ I2C_SMBUS_BLOCK_MAX) {
+ res = -EINVAL;
+ break;
+ }
+
+ rdwr_pa[i].len = rdwr_pa[i].buf[0];
+ }
}
if (res < 0) {
int j;
}
if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_NOSTART |
I2C_FUNC_PROTOCOL_MANGLING)) {
dev_err(&client->dev,
"need i2c bus that supports protocol mangling\n");
{
struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
struct wm831x_on *wm831x_on;
- int irq = platform_get_irq(pdev, 0);
+ int irq = wm831x_irq(wm831x, platform_get_irq(pdev, 0));
int ret;
wm831x_on = kzalloc(sizeof(struct wm831x_on), GFP_KERNEL);
* If we have a direct IRQ use it, otherwise use the interrupt
* from the WM831x IRQ controller.
*/
+ wm831x_ts->data_irq = wm831x_irq(wm831x,
+ platform_get_irq_byname(pdev,
+ "TCHDATA"));
if (pdata && pdata->data_irq)
wm831x_ts->data_irq = pdata->data_irq;
- else
- wm831x_ts->data_irq = platform_get_irq_byname(pdev, "TCHDATA");
+ wm831x_ts->pd_irq = wm831x_irq(wm831x,
+ platform_get_irq_byname(pdev, "TCHPD"));
if (pdata && pdata->pd_irq)
wm831x_ts->pd_irq = pdata->pd_irq;
- else
- wm831x_ts->pd_irq = platform_get_irq_byname(pdev, "TCHPD");
if (pdata)
wm831x_ts->pressure = pdata->pressure;
static void iommu_print_event(struct amd_iommu *iommu, void *__evt)
{
- u32 *event = __evt;
- int type = (event[1] >> EVENT_TYPE_SHIFT) & EVENT_TYPE_MASK;
- int devid = (event[0] >> EVENT_DEVID_SHIFT) & EVENT_DEVID_MASK;
- int domid = (event[1] >> EVENT_DOMID_SHIFT) & EVENT_DOMID_MASK;
- int flags = (event[1] >> EVENT_FLAGS_SHIFT) & EVENT_FLAGS_MASK;
- u64 address = (u64)(((u64)event[3]) << 32) | event[2];
+ int type, devid, domid, flags;
+ volatile u32 *event = __evt;
+ int count = 0;
+ u64 address;
+
+retry:
+ type = (event[1] >> EVENT_TYPE_SHIFT) & EVENT_TYPE_MASK;
+ devid = (event[0] >> EVENT_DEVID_SHIFT) & EVENT_DEVID_MASK;
+ domid = (event[1] >> EVENT_DOMID_SHIFT) & EVENT_DOMID_MASK;
+ flags = (event[1] >> EVENT_FLAGS_SHIFT) & EVENT_FLAGS_MASK;
+ address = (u64)(((u64)event[3]) << 32) | event[2];
+
+ if (type == 0) {
+ /* Did we hit the erratum? */
+ if (++count == LOOP_TIMEOUT) {
+ pr_err("AMD-Vi: No event written to event log\n");
+ return;
+ }
+ udelay(1);
+ goto retry;
+ }
printk(KERN_ERR "AMD-Vi: Event logged [");
default:
printk(KERN_ERR "UNKNOWN type=0x%02x]\n", type);
}
+
+ memset(__evt, 0, 4 * sizeof(u32));
}
static void iommu_poll_events(struct amd_iommu *iommu)
}
/* FIXME: Move this to PCI code */
-#define PCI_PRI_TLP_OFF (1 << 2)
+#define PCI_PRI_TLP_OFF (1 << 15)
bool pci_pri_tlp_required(struct pci_dev *pdev)
{
- u16 control;
+ u16 status;
int pos;
pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
if (!pos)
return false;
- pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
+ pci_read_config_word(pdev, pos + PCI_PRI_STATUS, &status);
- return (control & PCI_PRI_TLP_OFF) ? true : false;
+ return (status & PCI_PRI_TLP_OFF) ? true : false;
}
/*
* iommu_set_fault_handler() - set a fault handler for an iommu domain
* @domain: iommu domain
* @handler: fault handler
+ * @token: user data, will be passed back to the fault handler
*
* This function should be used by IOMMU users which want to be notified
* whenever an IOMMU fault happens.
* error code otherwise.
*/
void iommu_set_fault_handler(struct iommu_domain *domain,
- iommu_fault_handler_t handler)
+ iommu_fault_handler_t handler,
+ void *token)
{
BUG_ON(!domain);
domain->handler = handler;
+ domain->handler_token = token;
}
EXPORT_SYMBOL_GPL(iommu_set_fault_handler);
* @pgtable: the page table
* @iommu_dev: an omap iommu device attached to this domain. only a single
* iommu device can be attached for now.
+ * @dev: Device using this domain.
* @lock: domain lock, should be taken when attaching/detaching
*/
struct omap_iommu_domain {
u32 *pgtable;
struct omap_iommu *iommu_dev;
+ struct device *dev;
spinlock_t lock;
};
}
omap_domain->iommu_dev = arch_data->iommu_dev = oiommu;
+ omap_domain->dev = dev;
oiommu->domain = domain;
out:
return ret;
}
-static void omap_iommu_detach_dev(struct iommu_domain *domain,
- struct device *dev)
+static void _omap_iommu_detach_dev(struct omap_iommu_domain *omap_domain,
+ struct device *dev)
{
- struct omap_iommu_domain *omap_domain = domain->priv;
- struct omap_iommu_arch_data *arch_data = dev->archdata.iommu;
struct omap_iommu *oiommu = dev_to_omap_iommu(dev);
-
- spin_lock(&omap_domain->lock);
+ struct omap_iommu_arch_data *arch_data = dev->archdata.iommu;
/* only a single device is supported per domain for now */
if (omap_domain->iommu_dev != oiommu) {
dev_err(dev, "invalid iommu device\n");
- goto out;
+ return;
}
iopgtable_clear_entry_all(oiommu);
omap_iommu_detach(oiommu);
omap_domain->iommu_dev = arch_data->iommu_dev = NULL;
+ omap_domain->dev = NULL;
+}
-out:
+static void omap_iommu_detach_dev(struct iommu_domain *domain,
+ struct device *dev)
+{
+ struct omap_iommu_domain *omap_domain = domain->priv;
+
+ spin_lock(&omap_domain->lock);
+ _omap_iommu_detach_dev(omap_domain, dev);
spin_unlock(&omap_domain->lock);
}
return -ENOMEM;
}
-/* assume device was already detached */
static void omap_iommu_domain_destroy(struct iommu_domain *domain)
{
struct omap_iommu_domain *omap_domain = domain->priv;
domain->priv = NULL;
+ /*
+ * An iommu device is still attached
+ * (currently, only one device can be attached) ?
+ */
+ if (omap_domain->iommu_dev)
+ _omap_iommu_detach_dev(omap_domain, omap_domain->dev);
+
kfree(omap_domain->pgtable);
kfree(omap_domain);
}
#include <linux/device.h>
#include <linux/io.h>
#include <linux/iommu.h>
+#include <linux/of.h>
#include <asm/cacheflush.h>
/* bitmap of the page sizes currently supported */
#define GART_IOMMU_PGSIZES (SZ_4K)
-#define GART_CONFIG 0x24
-#define GART_ENTRY_ADDR 0x28
-#define GART_ENTRY_DATA 0x2c
+#define GART_REG_BASE 0x24
+#define GART_CONFIG (0x24 - GART_REG_BASE)
+#define GART_ENTRY_ADDR (0x28 - GART_REG_BASE)
+#define GART_ENTRY_DATA (0x2c - GART_REG_BASE)
#define GART_ENTRY_PHYS_ADDR_VALID (1 << 31)
#define GART_PAGE_SHIFT 12
struct gart_client *client, *c;
int err = 0;
- gart = dev_get_drvdata(dev->parent);
+ gart = gart_handle;
if (!gart)
return -EINVAL;
domain->priv = gart;
.resume = tegra_gart_resume,
};
+#ifdef CONFIG_OF
+static struct of_device_id tegra_gart_of_match[] __devinitdata = {
+ { .compatible = "nvidia,tegra20-gart", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, tegra_gart_of_match);
+#endif
+
static struct platform_driver tegra_gart_driver = {
.probe = tegra_gart_probe,
.remove = tegra_gart_remove,
.owner = THIS_MODULE,
.name = "tegra-gart",
.pm = &tegra_gart_pm_ops,
+ .of_match_table = of_match_ptr(tegra_gart_of_match),
},
};
MODULE_DESCRIPTION("IOMMU API for GART in Tegra20");
MODULE_AUTHOR("Hiroshi DOYU <hdoyu@nvidia.com>");
+MODULE_ALIAS("platform:tegra-gart");
MODULE_LICENSE("GPL v2");
pr_info("Reserve \"page zero\" for AVP vectors using a common dummy\n");
}
- dev_dbg(smmu->dev, "%s is attached\n", dev_name(c->dev));
+ dev_dbg(smmu->dev, "%s is attached\n", dev_name(dev));
return 0;
err_client:
controlled manually or using PWM input or using ambient
light automatically.
+config LEDS_LM3533
+ tristate "LED support for LM3533"
+ depends on LEDS_CLASS
+ depends on MFD_LM3533
+ help
+ This option enables support for the LEDs on National Semiconductor /
+ TI LM3533 Lighting Power chips.
+
+ The LEDs can be controlled directly, through PWM input, or by the
+ ambient-light-sensor interface. The chip supports
+ hardware-accelerated blinking with maximum on and off periods of 9.8
+ and 77 seconds respectively.
+
config LEDS_LOCOMO
tristate "LED Support for Locomo device"
depends on LEDS_CLASS
This option enables support for on-chip LED drivers found
on Dialog Semiconductor DA9030/DA9034 PMICs.
+config LEDS_DA9052
+ tristate "Dialog DA9052/DA9053 LEDS"
+ depends on LEDS_CLASS
+ depends on PMIC_DA9052
+ help
+ This option enables support for on-chip LED drivers found
+ on Dialog Semiconductor DA9052-BC and DA9053-AA/Bx PMICs.
+
config LEDS_DAC124S085
tristate "LED Support for DAC124S085 SPI DAC"
depends on LEDS_CLASS
comment "iptables trigger is under Netfilter config (LED target)"
depends on LEDS_TRIGGERS
+config LEDS_TRIGGER_TRANSIENT
+ tristate "LED Transient Trigger"
+ depends on LEDS_TRIGGERS
+ help
+ This allows one time activation of a transient state on
+ GPIO/PWM based hadrware.
+ If unsure, say Y.
+
endif # NEW_LEDS
obj-$(CONFIG_LEDS_BD2802) += leds-bd2802.o
obj-$(CONFIG_LEDS_LOCOMO) += leds-locomo.o
obj-$(CONFIG_LEDS_LM3530) += leds-lm3530.o
+obj-$(CONFIG_LEDS_LM3533) += leds-lm3533.o
obj-$(CONFIG_LEDS_MIKROTIK_RB532) += leds-rb532.o
obj-$(CONFIG_LEDS_S3C24XX) += leds-s3c24xx.o
obj-$(CONFIG_LEDS_NET48XX) += leds-net48xx.o
obj-$(CONFIG_LEDS_PCA955X) += leds-pca955x.o
obj-$(CONFIG_LEDS_PCA9633) += leds-pca9633.o
obj-$(CONFIG_LEDS_DA903X) += leds-da903x.o
+obj-$(CONFIG_LEDS_DA9052) += leds-da9052.o
obj-$(CONFIG_LEDS_WM831X_STATUS) += leds-wm831x-status.o
obj-$(CONFIG_LEDS_WM8350) += leds-wm8350.o
obj-$(CONFIG_LEDS_PWM) += leds-pwm.o
obj-$(CONFIG_LEDS_TRIGGER_BACKLIGHT) += ledtrig-backlight.o
obj-$(CONFIG_LEDS_TRIGGER_GPIO) += ledtrig-gpio.o
obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON) += ledtrig-default-on.o
+obj-$(CONFIG_LEDS_TRIGGER_TRANSIENT) += ledtrig-transient.o
struct device_attribute *attr, const char *buf, size_t size)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ unsigned long state;
ssize_t ret = -EINVAL;
- char *after;
- unsigned long state = simple_strtoul(buf, &after, 10);
- size_t count = after - buf;
- if (isspace(*after))
- count++;
+ ret = kstrtoul(buf, 10, &state);
+ if (ret)
+ return ret;
- if (count == size) {
- ret = count;
+ if (state == LED_OFF)
+ led_trigger_remove(led_cdev);
+ led_set_brightness(led_cdev, state);
- if (state == LED_OFF)
- led_trigger_remove(led_cdev);
- led_set_brightness(led_cdev, state);
- }
-
- return ret;
+ return size;
}
static ssize_t led_max_brightness_show(struct device *dev,
--- /dev/null
+/*
+ * LED Driver for Dialog DA9052 PMICs.
+ *
+ * Copyright(c) 2012 Dialog Semiconductor Ltd.
+ *
+ * Author: David Dajun Chen <dchen@diasemi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/workqueue.h>
+#include <linux/slab.h>
+
+#include <linux/mfd/da9052/reg.h>
+#include <linux/mfd/da9052/da9052.h>
+#include <linux/mfd/da9052/pdata.h>
+
+#define DA9052_OPENDRAIN_OUTPUT 2
+#define DA9052_SET_HIGH_LVL_OUTPUT (1 << 3)
+#define DA9052_MASK_UPPER_NIBBLE 0xF0
+#define DA9052_MASK_LOWER_NIBBLE 0x0F
+#define DA9052_NIBBLE_SHIFT 4
+#define DA9052_MAX_BRIGHTNESS 0x5f
+
+struct da9052_led {
+ struct led_classdev cdev;
+ struct work_struct work;
+ struct da9052 *da9052;
+ unsigned char led_index;
+ unsigned char id;
+ int brightness;
+};
+
+static unsigned char led_reg[] = {
+ DA9052_LED_CONT_4_REG,
+ DA9052_LED_CONT_5_REG,
+};
+
+static int da9052_set_led_brightness(struct da9052_led *led)
+{
+ u8 val;
+ int error;
+
+ val = (led->brightness & 0x7f) | DA9052_LED_CONT_DIM;
+
+ error = da9052_reg_write(led->da9052, led_reg[led->led_index], val);
+ if (error < 0)
+ dev_err(led->da9052->dev, "Failed to set led brightness, %d\n",
+ error);
+ return error;
+}
+
+static void da9052_led_work(struct work_struct *work)
+{
+ struct da9052_led *led = container_of(work, struct da9052_led, work);
+
+ da9052_set_led_brightness(led);
+}
+
+static void da9052_led_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ struct da9052_led *led;
+
+ led = container_of(led_cdev, struct da9052_led, cdev);
+ led->brightness = value;
+ schedule_work(&led->work);
+}
+
+static int da9052_configure_leds(struct da9052 *da9052)
+{
+ int error;
+ unsigned char register_value = DA9052_OPENDRAIN_OUTPUT
+ | DA9052_SET_HIGH_LVL_OUTPUT;
+
+ error = da9052_reg_update(da9052, DA9052_GPIO_14_15_REG,
+ DA9052_MASK_LOWER_NIBBLE,
+ register_value);
+
+ if (error < 0) {
+ dev_err(da9052->dev, "Failed to write GPIO 14-15 reg, %d\n",
+ error);
+ return error;
+ }
+
+ error = da9052_reg_update(da9052, DA9052_GPIO_14_15_REG,
+ DA9052_MASK_UPPER_NIBBLE,
+ register_value << DA9052_NIBBLE_SHIFT);
+ if (error < 0)
+ dev_err(da9052->dev, "Failed to write GPIO 14-15 reg, %d\n",
+ error);
+
+ return error;
+}
+
+static int __devinit da9052_led_probe(struct platform_device *pdev)
+{
+ struct da9052_pdata *pdata;
+ struct da9052 *da9052;
+ struct led_platform_data *pled;
+ struct da9052_led *led = NULL;
+ int error = -ENODEV;
+ int i;
+
+ da9052 = dev_get_drvdata(pdev->dev.parent);
+ pdata = da9052->dev->platform_data;
+ if (pdata == NULL) {
+ dev_err(&pdev->dev, "No platform data\n");
+ goto err;
+ }
+
+ pled = pdata->pled;
+ if (pled == NULL) {
+ dev_err(&pdev->dev, "No platform data for LED\n");
+ goto err;
+ }
+
+ led = devm_kzalloc(&pdev->dev,
+ sizeof(struct da9052_led) * pled->num_leds,
+ GFP_KERNEL);
+ if (led == NULL) {
+ dev_err(&pdev->dev, "Failed to alloc memory\n");
+ error = -ENOMEM;
+ goto err;
+ }
+
+ for (i = 0; i < pled->num_leds; i++) {
+ led[i].cdev.name = pled->leds[i].name;
+ led[i].cdev.brightness_set = da9052_led_set;
+ led[i].cdev.brightness = LED_OFF;
+ led[i].cdev.max_brightness = DA9052_MAX_BRIGHTNESS;
+ led[i].brightness = LED_OFF;
+ led[i].led_index = pled->leds[i].flags;
+ led[i].da9052 = dev_get_drvdata(pdev->dev.parent);
+ INIT_WORK(&led[i].work, da9052_led_work);
+
+ error = led_classdev_register(pdev->dev.parent, &led[i].cdev);
+ if (error) {
+ dev_err(&pdev->dev, "Failed to register led %d\n",
+ led[i].led_index);
+ goto err_register;
+ }
+
+ error = da9052_set_led_brightness(&led[i]);
+ if (error) {
+ dev_err(&pdev->dev, "Unable to init led %d\n",
+ led[i].led_index);
+ continue;
+ }
+ }
+ error = da9052_configure_leds(led->da9052);
+ if (error) {
+ dev_err(&pdev->dev, "Failed to configure GPIO LED%d\n", error);
+ goto err_register;
+ }
+
+ platform_set_drvdata(pdev, led);
+
+ return 0;
+
+err_register:
+ for (i = i - 1; i >= 0; i--) {
+ led_classdev_unregister(&led[i].cdev);
+ cancel_work_sync(&led[i].work);
+ }
+err:
+ return error;
+}
+
+static int __devexit da9052_led_remove(struct platform_device *pdev)
+{
+ struct da9052_led *led = platform_get_drvdata(pdev);
+ struct da9052_pdata *pdata;
+ struct da9052 *da9052;
+ struct led_platform_data *pled;
+ int i;
+
+ da9052 = dev_get_drvdata(pdev->dev.parent);
+ pdata = da9052->dev->platform_data;
+ pled = pdata->pled;
+
+ for (i = 0; i < pled->num_leds; i++) {
+ led[i].brightness = 0;
+ da9052_set_led_brightness(&led[i]);
+ led_classdev_unregister(&led[i].cdev);
+ cancel_work_sync(&led[i].work);
+ }
+
+ return 0;
+}
+
+static struct platform_driver da9052_led_driver = {
+ .driver = {
+ .name = "da9052-leds",
+ .owner = THIS_MODULE,
+ },
+ .probe = da9052_led_probe,
+ .remove = __devexit_p(da9052_led_remove),
+};
+
+module_platform_driver(da9052_led_driver);
+
+MODULE_AUTHOR("Dialog Semiconductor Ltd <dchen@diasemi.com>");
+MODULE_DESCRIPTION("LED driver for Dialog DA9052 PMIC");
+MODULE_LICENSE("GPL");
bool enable;
};
+/*
+ * struct lm3530_als_data
+ * @config : value of ALS configuration register
+ * @imp_sel : value of ALS resistor select register
+ * @zone : values of ALS ZB(Zone Boundary) registers
+ */
+struct lm3530_als_data {
+ u8 config;
+ u8 imp_sel;
+ u8 zones[LM3530_ALS_ZB_MAX];
+};
+
static const u8 lm3530_reg[LM3530_REG_MAX] = {
LM3530_GEN_CONFIG,
LM3530_ALS_CONFIG,
return -1;
}
+static void lm3530_als_configure(struct lm3530_platform_data *pdata,
+ struct lm3530_als_data *als)
+{
+ int i;
+ u32 als_vmin, als_vmax, als_vstep;
+
+ if (pdata->als_vmax == 0) {
+ pdata->als_vmin = 0;
+ pdata->als_vmax = LM3530_ALS_WINDOW_mV;
+ }
+
+ als_vmin = pdata->als_vmin;
+ als_vmax = pdata->als_vmax;
+
+ if ((als_vmax - als_vmin) > LM3530_ALS_WINDOW_mV)
+ pdata->als_vmax = als_vmax = als_vmin + LM3530_ALS_WINDOW_mV;
+
+ /* n zone boundary makes n+1 zones */
+ als_vstep = (als_vmax - als_vmin) / (LM3530_ALS_ZB_MAX + 1);
+
+ for (i = 0; i < LM3530_ALS_ZB_MAX; i++)
+ als->zones[i] = (((als_vmin + LM3530_ALS_OFFSET_mV) +
+ als_vstep + (i * als_vstep)) * LED_FULL) / 1000;
+
+ als->config =
+ (pdata->als_avrg_time << LM3530_ALS_AVG_TIME_SHIFT) |
+ (LM3530_ENABLE_ALS) |
+ (pdata->als_input_mode << LM3530_ALS_SEL_SHIFT);
+
+ als->imp_sel =
+ (pdata->als1_resistor_sel << LM3530_ALS1_IMP_SHIFT) |
+ (pdata->als2_resistor_sel << LM3530_ALS2_IMP_SHIFT);
+}
+
static int lm3530_init_registers(struct lm3530_data *drvdata)
{
int ret = 0;
int i;
u8 gen_config;
- u8 als_config = 0;
u8 brt_ramp;
- u8 als_imp_sel = 0;
u8 brightness;
u8 reg_val[LM3530_REG_MAX];
- u8 zones[LM3530_ALS_ZB_MAX];
- u32 als_vmin, als_vmax, als_vstep;
struct lm3530_platform_data *pdata = drvdata->pdata;
struct i2c_client *client = drvdata->client;
struct lm3530_pwm_data *pwm = &pdata->pwm_data;
+ struct lm3530_als_data als;
+
+ memset(&als, 0, sizeof(struct lm3530_als_data));
gen_config = (pdata->brt_ramp_law << LM3530_RAMP_LAW_SHIFT) |
((pdata->max_current & 7) << LM3530_MAX_CURR_SHIFT);
switch (drvdata->mode) {
case LM3530_BL_MODE_MANUAL:
+ gen_config |= LM3530_ENABLE_I2C;
+ break;
case LM3530_BL_MODE_ALS:
gen_config |= LM3530_ENABLE_I2C;
+ lm3530_als_configure(pdata, &als);
break;
case LM3530_BL_MODE_PWM:
gen_config |= LM3530_ENABLE_PWM | LM3530_ENABLE_PWM_SIMPLE |
break;
}
- if (drvdata->mode == LM3530_BL_MODE_ALS) {
- if (pdata->als_vmax == 0) {
- pdata->als_vmin = 0;
- pdata->als_vmax = LM3530_ALS_WINDOW_mV;
- }
-
- als_vmin = pdata->als_vmin;
- als_vmax = pdata->als_vmax;
-
- if ((als_vmax - als_vmin) > LM3530_ALS_WINDOW_mV)
- pdata->als_vmax = als_vmax =
- als_vmin + LM3530_ALS_WINDOW_mV;
-
- /* n zone boundary makes n+1 zones */
- als_vstep = (als_vmax - als_vmin) / (LM3530_ALS_ZB_MAX + 1);
-
- for (i = 0; i < LM3530_ALS_ZB_MAX; i++)
- zones[i] = (((als_vmin + LM3530_ALS_OFFSET_mV) +
- als_vstep + (i * als_vstep)) * LED_FULL)
- / 1000;
-
- als_config =
- (pdata->als_avrg_time << LM3530_ALS_AVG_TIME_SHIFT) |
- (LM3530_ENABLE_ALS) |
- (pdata->als_input_mode << LM3530_ALS_SEL_SHIFT);
-
- als_imp_sel =
- (pdata->als1_resistor_sel << LM3530_ALS1_IMP_SHIFT) |
- (pdata->als2_resistor_sel << LM3530_ALS2_IMP_SHIFT);
-
- }
-
brt_ramp = (pdata->brt_ramp_fall << LM3530_BRT_RAMP_FALL_SHIFT) |
(pdata->brt_ramp_rise << LM3530_BRT_RAMP_RISE_SHIFT);
brightness = drvdata->led_dev.max_brightness;
reg_val[0] = gen_config; /* LM3530_GEN_CONFIG */
- reg_val[1] = als_config; /* LM3530_ALS_CONFIG */
+ reg_val[1] = als.config; /* LM3530_ALS_CONFIG */
reg_val[2] = brt_ramp; /* LM3530_BRT_RAMP_RATE */
- reg_val[3] = als_imp_sel; /* LM3530_ALS_IMP_SELECT */
+ reg_val[3] = als.imp_sel; /* LM3530_ALS_IMP_SELECT */
reg_val[4] = brightness; /* LM3530_BRT_CTRL_REG */
- reg_val[5] = zones[0]; /* LM3530_ALS_ZB0_REG */
- reg_val[6] = zones[1]; /* LM3530_ALS_ZB1_REG */
- reg_val[7] = zones[2]; /* LM3530_ALS_ZB2_REG */
- reg_val[8] = zones[3]; /* LM3530_ALS_ZB3_REG */
+ reg_val[5] = als.zones[0]; /* LM3530_ALS_ZB0_REG */
+ reg_val[6] = als.zones[1]; /* LM3530_ALS_ZB1_REG */
+ reg_val[7] = als.zones[2]; /* LM3530_ALS_ZB2_REG */
+ reg_val[8] = als.zones[3]; /* LM3530_ALS_ZB3_REG */
reg_val[9] = LM3530_DEF_ZT_0; /* LM3530_ALS_Z0T_REG */
reg_val[10] = LM3530_DEF_ZT_1; /* LM3530_ALS_Z1T_REG */
reg_val[11] = LM3530_DEF_ZT_2; /* LM3530_ALS_Z2T_REG */
--- /dev/null
+/*
+ * leds-lm3533.c -- LM3533 LED driver
+ *
+ * Copyright (C) 2011-2012 Texas Instruments
+ *
+ * Author: Johan Hovold <jhovold@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/leds.h>
+#include <linux/mfd/core.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+
+#include <linux/mfd/lm3533.h>
+
+
+#define LM3533_LVCTRLBANK_MIN 2
+#define LM3533_LVCTRLBANK_MAX 5
+#define LM3533_LVCTRLBANK_COUNT 4
+#define LM3533_RISEFALLTIME_MAX 7
+#define LM3533_ALS_CHANNEL_LV_MIN 1
+#define LM3533_ALS_CHANNEL_LV_MAX 2
+
+#define LM3533_REG_CTRLBANK_BCONF_BASE 0x1b
+#define LM3533_REG_PATTERN_ENABLE 0x28
+#define LM3533_REG_PATTERN_LOW_TIME_BASE 0x71
+#define LM3533_REG_PATTERN_HIGH_TIME_BASE 0x72
+#define LM3533_REG_PATTERN_RISETIME_BASE 0x74
+#define LM3533_REG_PATTERN_FALLTIME_BASE 0x75
+
+#define LM3533_REG_PATTERN_STEP 0x10
+
+#define LM3533_REG_CTRLBANK_BCONF_MAPPING_MASK 0x04
+#define LM3533_REG_CTRLBANK_BCONF_ALS_EN_MASK 0x02
+#define LM3533_REG_CTRLBANK_BCONF_ALS_CHANNEL_MASK 0x01
+
+#define LM3533_LED_FLAG_PATTERN_ENABLE 1
+
+
+struct lm3533_led {
+ struct lm3533 *lm3533;
+ struct lm3533_ctrlbank cb;
+ struct led_classdev cdev;
+ int id;
+
+ struct mutex mutex;
+ unsigned long flags;
+
+ struct work_struct work;
+ u8 new_brightness;
+};
+
+
+static inline struct lm3533_led *to_lm3533_led(struct led_classdev *cdev)
+{
+ return container_of(cdev, struct lm3533_led, cdev);
+}
+
+static inline int lm3533_led_get_ctrlbank_id(struct lm3533_led *led)
+{
+ return led->id + 2;
+}
+
+static inline u8 lm3533_led_get_lv_reg(struct lm3533_led *led, u8 base)
+{
+ return base + led->id;
+}
+
+static inline u8 lm3533_led_get_pattern(struct lm3533_led *led)
+{
+ return led->id;
+}
+
+static inline u8 lm3533_led_get_pattern_reg(struct lm3533_led *led,
+ u8 base)
+{
+ return base + lm3533_led_get_pattern(led) * LM3533_REG_PATTERN_STEP;
+}
+
+static int lm3533_led_pattern_enable(struct lm3533_led *led, int enable)
+{
+ u8 mask;
+ u8 val;
+ int pattern;
+ int state;
+ int ret = 0;
+
+ dev_dbg(led->cdev.dev, "%s - %d\n", __func__, enable);
+
+ mutex_lock(&led->mutex);
+
+ state = test_bit(LM3533_LED_FLAG_PATTERN_ENABLE, &led->flags);
+ if ((enable && state) || (!enable && !state))
+ goto out;
+
+ pattern = lm3533_led_get_pattern(led);
+ mask = 1 << (2 * pattern);
+
+ if (enable)
+ val = mask;
+ else
+ val = 0;
+
+ ret = lm3533_update(led->lm3533, LM3533_REG_PATTERN_ENABLE, val, mask);
+ if (ret) {
+ dev_err(led->cdev.dev, "failed to enable pattern %d (%d)\n",
+ pattern, enable);
+ goto out;
+ }
+
+ __change_bit(LM3533_LED_FLAG_PATTERN_ENABLE, &led->flags);
+out:
+ mutex_unlock(&led->mutex);
+
+ return ret;
+}
+
+static void lm3533_led_work(struct work_struct *work)
+{
+ struct lm3533_led *led = container_of(work, struct lm3533_led, work);
+
+ dev_dbg(led->cdev.dev, "%s - %u\n", __func__, led->new_brightness);
+
+ if (led->new_brightness == 0)
+ lm3533_led_pattern_enable(led, 0); /* disable blink */
+
+ lm3533_ctrlbank_set_brightness(&led->cb, led->new_brightness);
+}
+
+static void lm3533_led_set(struct led_classdev *cdev,
+ enum led_brightness value)
+{
+ struct lm3533_led *led = to_lm3533_led(cdev);
+
+ dev_dbg(led->cdev.dev, "%s - %d\n", __func__, value);
+
+ led->new_brightness = value;
+ schedule_work(&led->work);
+}
+
+static enum led_brightness lm3533_led_get(struct led_classdev *cdev)
+{
+ struct lm3533_led *led = to_lm3533_led(cdev);
+ u8 val;
+ int ret;
+
+ ret = lm3533_ctrlbank_get_brightness(&led->cb, &val);
+ if (ret)
+ return ret;
+
+ dev_dbg(led->cdev.dev, "%s - %u\n", __func__, val);
+
+ return val;
+}
+
+/* Pattern generator defines (delays in us). */
+#define LM3533_LED_DELAY1_VMIN 0x00
+#define LM3533_LED_DELAY2_VMIN 0x3d
+#define LM3533_LED_DELAY3_VMIN 0x80
+
+#define LM3533_LED_DELAY1_VMAX (LM3533_LED_DELAY2_VMIN - 1)
+#define LM3533_LED_DELAY2_VMAX (LM3533_LED_DELAY3_VMIN - 1)
+#define LM3533_LED_DELAY3_VMAX 0xff
+
+#define LM3533_LED_DELAY1_TMIN 16384U
+#define LM3533_LED_DELAY2_TMIN 1130496U
+#define LM3533_LED_DELAY3_TMIN 10305536U
+
+#define LM3533_LED_DELAY1_TMAX 999424U
+#define LM3533_LED_DELAY2_TMAX 9781248U
+#define LM3533_LED_DELAY3_TMAX 76890112U
+
+/* t_step = (t_max - t_min) / (v_max - v_min) */
+#define LM3533_LED_DELAY1_TSTEP 16384
+#define LM3533_LED_DELAY2_TSTEP 131072
+#define LM3533_LED_DELAY3_TSTEP 524288
+
+/* Delay limits for hardware accelerated blinking (in ms). */
+#define LM3533_LED_DELAY_ON_MAX \
+ ((LM3533_LED_DELAY2_TMAX + LM3533_LED_DELAY2_TSTEP / 2) / 1000)
+#define LM3533_LED_DELAY_OFF_MAX \
+ ((LM3533_LED_DELAY3_TMAX + LM3533_LED_DELAY3_TSTEP / 2) / 1000)
+
+/*
+ * Returns linear map of *t from [t_min,t_max] to [v_min,v_max] with a step
+ * size of t_step, where
+ *
+ * t_step = (t_max - t_min) / (v_max - v_min)
+ *
+ * and updates *t to reflect the mapped value.
+ */
+static u8 time_to_val(unsigned *t, unsigned t_min, unsigned t_step,
+ u8 v_min, u8 v_max)
+{
+ unsigned val;
+
+ val = (*t + t_step / 2 - t_min) / t_step + v_min;
+
+ *t = t_step * (val - v_min) + t_min;
+
+ return (u8)val;
+}
+
+/*
+ * Returns time code corresponding to *delay (in ms) and updates *delay to
+ * reflect actual hardware delay.
+ *
+ * Hardware supports 256 discrete delay times, divided into three groups with
+ * the following ranges and step-sizes:
+ *
+ * [ 16, 999] [0x00, 0x3e] step 16 ms
+ * [ 1130, 9781] [0x3d, 0x7f] step 131 ms
+ * [10306, 76890] [0x80, 0xff] step 524 ms
+ *
+ * Note that delay group 3 is only available for delay_off.
+ */
+static u8 lm3533_led_get_hw_delay(unsigned *delay)
+{
+ unsigned t;
+ u8 val;
+
+ t = *delay * 1000;
+
+ if (t >= (LM3533_LED_DELAY2_TMAX + LM3533_LED_DELAY3_TMIN) / 2) {
+ t = clamp(t, LM3533_LED_DELAY3_TMIN, LM3533_LED_DELAY3_TMAX);
+ val = time_to_val(&t, LM3533_LED_DELAY3_TMIN,
+ LM3533_LED_DELAY3_TSTEP,
+ LM3533_LED_DELAY3_VMIN,
+ LM3533_LED_DELAY3_VMAX);
+ } else if (t >= (LM3533_LED_DELAY1_TMAX + LM3533_LED_DELAY2_TMIN) / 2) {
+ t = clamp(t, LM3533_LED_DELAY2_TMIN, LM3533_LED_DELAY2_TMAX);
+ val = time_to_val(&t, LM3533_LED_DELAY2_TMIN,
+ LM3533_LED_DELAY2_TSTEP,
+ LM3533_LED_DELAY2_VMIN,
+ LM3533_LED_DELAY2_VMAX);
+ } else {
+ t = clamp(t, LM3533_LED_DELAY1_TMIN, LM3533_LED_DELAY1_TMAX);
+ val = time_to_val(&t, LM3533_LED_DELAY1_TMIN,
+ LM3533_LED_DELAY1_TSTEP,
+ LM3533_LED_DELAY1_VMIN,
+ LM3533_LED_DELAY1_VMAX);
+ }
+
+ *delay = (t + 500) / 1000;
+
+ return val;
+}
+
+/*
+ * Set delay register base to *delay (in ms) and update *delay to reflect
+ * actual hardware delay used.
+ */
+static u8 lm3533_led_delay_set(struct lm3533_led *led, u8 base,
+ unsigned long *delay)
+{
+ unsigned t;
+ u8 val;
+ u8 reg;
+ int ret;
+
+ t = (unsigned)*delay;
+
+ /* Delay group 3 is only available for low time (delay off). */
+ if (base != LM3533_REG_PATTERN_LOW_TIME_BASE)
+ t = min(t, LM3533_LED_DELAY2_TMAX / 1000);
+
+ val = lm3533_led_get_hw_delay(&t);
+
+ dev_dbg(led->cdev.dev, "%s - %lu: %u (0x%02x)\n", __func__,
+ *delay, t, val);
+ reg = lm3533_led_get_pattern_reg(led, base);
+ ret = lm3533_write(led->lm3533, reg, val);
+ if (ret)
+ dev_err(led->cdev.dev, "failed to set delay (%02x)\n", reg);
+
+ *delay = t;
+
+ return ret;
+}
+
+static int lm3533_led_delay_on_set(struct lm3533_led *led, unsigned long *t)
+{
+ return lm3533_led_delay_set(led, LM3533_REG_PATTERN_HIGH_TIME_BASE, t);
+}
+
+static int lm3533_led_delay_off_set(struct lm3533_led *led, unsigned long *t)
+{
+ return lm3533_led_delay_set(led, LM3533_REG_PATTERN_LOW_TIME_BASE, t);
+}
+
+static int lm3533_led_blink_set(struct led_classdev *cdev,
+ unsigned long *delay_on,
+ unsigned long *delay_off)
+{
+ struct lm3533_led *led = to_lm3533_led(cdev);
+ int ret;
+
+ dev_dbg(led->cdev.dev, "%s - on = %lu, off = %lu\n", __func__,
+ *delay_on, *delay_off);
+
+ if (*delay_on > LM3533_LED_DELAY_ON_MAX ||
+ *delay_off > LM3533_LED_DELAY_OFF_MAX)
+ return -EINVAL;
+
+ if (*delay_on == 0 && *delay_off == 0) {
+ *delay_on = 500;
+ *delay_off = 500;
+ }
+
+ ret = lm3533_led_delay_on_set(led, delay_on);
+ if (ret)
+ return ret;
+
+ ret = lm3533_led_delay_off_set(led, delay_off);
+ if (ret)
+ return ret;
+
+ return lm3533_led_pattern_enable(led, 1);
+}
+
+static ssize_t show_id(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm3533_led *led = to_lm3533_led(led_cdev);
+
+ return scnprintf(buf, PAGE_SIZE, "%d\n", led->id);
+}
+
+/*
+ * Pattern generator rise/fall times:
+ *
+ * 0 - 2048 us (default)
+ * 1 - 262 ms
+ * 2 - 524 ms
+ * 3 - 1.049 s
+ * 4 - 2.097 s
+ * 5 - 4.194 s
+ * 6 - 8.389 s
+ * 7 - 16.78 s
+ */
+static ssize_t show_risefalltime(struct device *dev,
+ struct device_attribute *attr,
+ char *buf, u8 base)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm3533_led *led = to_lm3533_led(led_cdev);
+ ssize_t ret;
+ u8 reg;
+ u8 val;
+
+ reg = lm3533_led_get_pattern_reg(led, base);
+ ret = lm3533_read(led->lm3533, reg, &val);
+ if (ret)
+ return ret;
+
+ return scnprintf(buf, PAGE_SIZE, "%x\n", val);
+}
+
+static ssize_t show_risetime(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return show_risefalltime(dev, attr, buf,
+ LM3533_REG_PATTERN_RISETIME_BASE);
+}
+
+static ssize_t show_falltime(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return show_risefalltime(dev, attr, buf,
+ LM3533_REG_PATTERN_FALLTIME_BASE);
+}
+
+static ssize_t store_risefalltime(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len, u8 base)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm3533_led *led = to_lm3533_led(led_cdev);
+ u8 val;
+ u8 reg;
+ int ret;
+
+ if (kstrtou8(buf, 0, &val) || val > LM3533_RISEFALLTIME_MAX)
+ return -EINVAL;
+
+ reg = lm3533_led_get_pattern_reg(led, base);
+ ret = lm3533_write(led->lm3533, reg, val);
+ if (ret)
+ return ret;
+
+ return len;
+}
+
+static ssize_t store_risetime(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ return store_risefalltime(dev, attr, buf, len,
+ LM3533_REG_PATTERN_RISETIME_BASE);
+}
+
+static ssize_t store_falltime(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ return store_risefalltime(dev, attr, buf, len,
+ LM3533_REG_PATTERN_FALLTIME_BASE);
+}
+
+static ssize_t show_als_channel(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm3533_led *led = to_lm3533_led(led_cdev);
+ unsigned channel;
+ u8 reg;
+ u8 val;
+ int ret;
+
+ reg = lm3533_led_get_lv_reg(led, LM3533_REG_CTRLBANK_BCONF_BASE);
+ ret = lm3533_read(led->lm3533, reg, &val);
+ if (ret)
+ return ret;
+
+ channel = (val & LM3533_REG_CTRLBANK_BCONF_ALS_CHANNEL_MASK) + 1;
+
+ return scnprintf(buf, PAGE_SIZE, "%u\n", channel);
+}
+
+static ssize_t store_als_channel(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm3533_led *led = to_lm3533_led(led_cdev);
+ unsigned channel;
+ u8 reg;
+ u8 val;
+ u8 mask;
+ int ret;
+
+ if (kstrtouint(buf, 0, &channel))
+ return -EINVAL;
+
+ if (channel < LM3533_ALS_CHANNEL_LV_MIN ||
+ channel > LM3533_ALS_CHANNEL_LV_MAX)
+ return -EINVAL;
+
+ reg = lm3533_led_get_lv_reg(led, LM3533_REG_CTRLBANK_BCONF_BASE);
+ mask = LM3533_REG_CTRLBANK_BCONF_ALS_CHANNEL_MASK;
+ val = channel - 1;
+
+ ret = lm3533_update(led->lm3533, reg, val, mask);
+ if (ret)
+ return ret;
+
+ return len;
+}
+
+static ssize_t show_als_en(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm3533_led *led = to_lm3533_led(led_cdev);
+ bool enable;
+ u8 reg;
+ u8 val;
+ int ret;
+
+ reg = lm3533_led_get_lv_reg(led, LM3533_REG_CTRLBANK_BCONF_BASE);
+ ret = lm3533_read(led->lm3533, reg, &val);
+ if (ret)
+ return ret;
+
+ enable = val & LM3533_REG_CTRLBANK_BCONF_ALS_EN_MASK;
+
+ return scnprintf(buf, PAGE_SIZE, "%d\n", enable);
+}
+
+static ssize_t store_als_en(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm3533_led *led = to_lm3533_led(led_cdev);
+ unsigned enable;
+ u8 reg;
+ u8 mask;
+ u8 val;
+ int ret;
+
+ if (kstrtouint(buf, 0, &enable))
+ return -EINVAL;
+
+ reg = lm3533_led_get_lv_reg(led, LM3533_REG_CTRLBANK_BCONF_BASE);
+ mask = LM3533_REG_CTRLBANK_BCONF_ALS_EN_MASK;
+
+ if (enable)
+ val = mask;
+ else
+ val = 0;
+
+ ret = lm3533_update(led->lm3533, reg, val, mask);
+ if (ret)
+ return ret;
+
+ return len;
+}
+
+static ssize_t show_linear(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm3533_led *led = to_lm3533_led(led_cdev);
+ u8 reg;
+ u8 val;
+ int linear;
+ int ret;
+
+ reg = lm3533_led_get_lv_reg(led, LM3533_REG_CTRLBANK_BCONF_BASE);
+ ret = lm3533_read(led->lm3533, reg, &val);
+ if (ret)
+ return ret;
+
+ if (val & LM3533_REG_CTRLBANK_BCONF_MAPPING_MASK)
+ linear = 1;
+ else
+ linear = 0;
+
+ return scnprintf(buf, PAGE_SIZE, "%x\n", linear);
+}
+
+static ssize_t store_linear(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm3533_led *led = to_lm3533_led(led_cdev);
+ unsigned long linear;
+ u8 reg;
+ u8 mask;
+ u8 val;
+ int ret;
+
+ if (kstrtoul(buf, 0, &linear))
+ return -EINVAL;
+
+ reg = lm3533_led_get_lv_reg(led, LM3533_REG_CTRLBANK_BCONF_BASE);
+ mask = LM3533_REG_CTRLBANK_BCONF_MAPPING_MASK;
+
+ if (linear)
+ val = mask;
+ else
+ val = 0;
+
+ ret = lm3533_update(led->lm3533, reg, val, mask);
+ if (ret)
+ return ret;
+
+ return len;
+}
+
+static ssize_t show_pwm(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm3533_led *led = to_lm3533_led(led_cdev);
+ u8 val;
+ int ret;
+
+ ret = lm3533_ctrlbank_get_pwm(&led->cb, &val);
+ if (ret)
+ return ret;
+
+ return scnprintf(buf, PAGE_SIZE, "%u\n", val);
+}
+
+static ssize_t store_pwm(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm3533_led *led = to_lm3533_led(led_cdev);
+ u8 val;
+ int ret;
+
+ if (kstrtou8(buf, 0, &val))
+ return -EINVAL;
+
+ ret = lm3533_ctrlbank_set_pwm(&led->cb, val);
+ if (ret)
+ return ret;
+
+ return len;
+}
+
+static LM3533_ATTR_RW(als_channel);
+static LM3533_ATTR_RW(als_en);
+static LM3533_ATTR_RW(falltime);
+static LM3533_ATTR_RO(id);
+static LM3533_ATTR_RW(linear);
+static LM3533_ATTR_RW(pwm);
+static LM3533_ATTR_RW(risetime);
+
+static struct attribute *lm3533_led_attributes[] = {
+ &dev_attr_als_channel.attr,
+ &dev_attr_als_en.attr,
+ &dev_attr_falltime.attr,
+ &dev_attr_id.attr,
+ &dev_attr_linear.attr,
+ &dev_attr_pwm.attr,
+ &dev_attr_risetime.attr,
+ NULL,
+};
+
+static umode_t lm3533_led_attr_is_visible(struct kobject *kobj,
+ struct attribute *attr, int n)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm3533_led *led = to_lm3533_led(led_cdev);
+ umode_t mode = attr->mode;
+
+ if (attr == &dev_attr_als_channel.attr ||
+ attr == &dev_attr_als_en.attr) {
+ if (!led->lm3533->have_als)
+ mode = 0;
+ }
+
+ return mode;
+};
+
+static struct attribute_group lm3533_led_attribute_group = {
+ .is_visible = lm3533_led_attr_is_visible,
+ .attrs = lm3533_led_attributes
+};
+
+static int __devinit lm3533_led_setup(struct lm3533_led *led,
+ struct lm3533_led_platform_data *pdata)
+{
+ int ret;
+
+ ret = lm3533_ctrlbank_set_max_current(&led->cb, pdata->max_current);
+ if (ret)
+ return ret;
+
+ return lm3533_ctrlbank_set_pwm(&led->cb, pdata->pwm);
+}
+
+static int __devinit lm3533_led_probe(struct platform_device *pdev)
+{
+ struct lm3533 *lm3533;
+ struct lm3533_led_platform_data *pdata;
+ struct lm3533_led *led;
+ int ret;
+
+ dev_dbg(&pdev->dev, "%s\n", __func__);
+
+ lm3533 = dev_get_drvdata(pdev->dev.parent);
+ if (!lm3533)
+ return -EINVAL;
+
+ pdata = pdev->dev.platform_data;
+ if (!pdata) {
+ dev_err(&pdev->dev, "no platform data\n");
+ return -EINVAL;
+ }
+
+ if (pdev->id < 0 || pdev->id >= LM3533_LVCTRLBANK_COUNT) {
+ dev_err(&pdev->dev, "illegal LED id %d\n", pdev->id);
+ return -EINVAL;
+ }
+
+ led = devm_kzalloc(&pdev->dev, sizeof(*led), GFP_KERNEL);
+ if (!led)
+ return -ENOMEM;
+
+ led->lm3533 = lm3533;
+ led->cdev.name = pdata->name;
+ led->cdev.default_trigger = pdata->default_trigger;
+ led->cdev.brightness_set = lm3533_led_set;
+ led->cdev.brightness_get = lm3533_led_get;
+ led->cdev.blink_set = lm3533_led_blink_set;
+ led->cdev.brightness = LED_OFF;
+ led->id = pdev->id;
+
+ mutex_init(&led->mutex);
+ INIT_WORK(&led->work, lm3533_led_work);
+
+ /* The class framework makes a callback to get brightness during
+ * registration so use parent device (for error reporting) until
+ * registered.
+ */
+ led->cb.lm3533 = lm3533;
+ led->cb.id = lm3533_led_get_ctrlbank_id(led);
+ led->cb.dev = lm3533->dev;
+
+ platform_set_drvdata(pdev, led);
+
+ ret = led_classdev_register(pdev->dev.parent, &led->cdev);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to register LED %d\n", pdev->id);
+ return ret;
+ }
+
+ led->cb.dev = led->cdev.dev;
+
+ ret = sysfs_create_group(&led->cdev.dev->kobj,
+ &lm3533_led_attribute_group);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to create sysfs attributes\n");
+ goto err_unregister;
+ }
+
+ ret = lm3533_led_setup(led, pdata);
+ if (ret)
+ goto err_sysfs_remove;
+
+ ret = lm3533_ctrlbank_enable(&led->cb);
+ if (ret)
+ goto err_sysfs_remove;
+
+ return 0;
+
+err_sysfs_remove:
+ sysfs_remove_group(&led->cdev.dev->kobj, &lm3533_led_attribute_group);
+err_unregister:
+ led_classdev_unregister(&led->cdev);
+ flush_work_sync(&led->work);
+
+ return ret;
+}
+
+static int __devexit lm3533_led_remove(struct platform_device *pdev)
+{
+ struct lm3533_led *led = platform_get_drvdata(pdev);
+
+ dev_dbg(&pdev->dev, "%s\n", __func__);
+
+ lm3533_ctrlbank_disable(&led->cb);
+ sysfs_remove_group(&led->cdev.dev->kobj, &lm3533_led_attribute_group);
+ led_classdev_unregister(&led->cdev);
+ flush_work_sync(&led->work);
+
+ return 0;
+}
+
+static void lm3533_led_shutdown(struct platform_device *pdev)
+{
+
+ struct lm3533_led *led = platform_get_drvdata(pdev);
+
+ dev_dbg(&pdev->dev, "%s\n", __func__);
+
+ lm3533_ctrlbank_disable(&led->cb);
+ lm3533_led_set(&led->cdev, LED_OFF); /* disable blink */
+ flush_work_sync(&led->work);
+}
+
+static struct platform_driver lm3533_led_driver = {
+ .driver = {
+ .name = "lm3533-leds",
+ .owner = THIS_MODULE,
+ },
+ .probe = lm3533_led_probe,
+ .remove = __devexit_p(lm3533_led_remove),
+ .shutdown = lm3533_led_shutdown,
+};
+module_platform_driver(lm3533_led_driver);
+
+MODULE_AUTHOR("Johan Hovold <jhovold@gmail.com>");
+MODULE_DESCRIPTION("LM3533 LED driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:lm3533-leds");
/* move current engine to direct mode and remember the state */
ret = lp5521_set_engine_mode(eng, LP5521_CMD_DIRECT);
+ if (ret)
+ return ret;
+
/* Mode change requires min 500 us delay. 1 - 2 ms with margin */
usleep_range(1000, 2000);
- ret |= lp5521_read(client, LP5521_REG_OP_MODE, &mode);
+ ret = lp5521_read(client, LP5521_REG_OP_MODE, &mode);
+ if (ret)
+ return ret;
/* For loading, all the engines to load mode */
lp5521_write(client, LP5521_REG_OP_MODE, LP5521_CMD_DIRECT);
LP5521_PROG_MEM_SIZE,
pattern);
- ret |= lp5521_write(client, LP5521_REG_OP_MODE, mode);
- return ret;
+ return lp5521_write(client, LP5521_REG_OP_MODE, mode);
}
static int lp5521_set_led_current(struct lp5521_chip *chip, int led, u8 curr)
* LP5521_REG_ENABLE register will not have any effect - strange!
*/
ret = lp5521_read(client, LP5521_REG_R_CURRENT, &buf);
- if (buf != LP5521_REG_R_CURR_DEFAULT) {
+ if (ret || buf != LP5521_REG_R_CURR_DEFAULT) {
dev_err(&client->dev, "error in resetting chip\n");
goto fail2;
}
return -EINVAL;
}
- led = kzalloc(sizeof(*led) * pdata->num_leds, GFP_KERNEL);
+ led = kcalloc(pdata->num_leds, sizeof(*led), GFP_KERNEL);
if (led == NULL) {
dev_err(&pdev->dev, "failed to alloc memory\n");
return -ENOMEM;
};
MODULE_DEVICE_TABLE(i2c, pca955x_id);
-struct pca955x_led {
+struct pca955x {
+ struct mutex lock;
+ struct pca955x_led *leds;
struct pca955x_chipdef *chipdef;
struct i2c_client *client;
+};
+
+struct pca955x_led {
+ struct pca955x *pca955x;
struct work_struct work;
- spinlock_t lock;
enum led_brightness brightness;
struct led_classdev led_cdev;
int led_num; /* 0 .. 15 potentially */
*/
static void pca955x_write_psc(struct i2c_client *client, int n, u8 val)
{
- struct pca955x_led *pca955x = i2c_get_clientdata(client);
+ struct pca955x *pca955x = i2c_get_clientdata(client);
i2c_smbus_write_byte_data(client,
pca95xx_num_input_regs(pca955x->chipdef->bits) + 2*n,
*/
static void pca955x_write_pwm(struct i2c_client *client, int n, u8 val)
{
- struct pca955x_led *pca955x = i2c_get_clientdata(client);
+ struct pca955x *pca955x = i2c_get_clientdata(client);
i2c_smbus_write_byte_data(client,
pca95xx_num_input_regs(pca955x->chipdef->bits) + 1 + 2*n,
*/
static void pca955x_write_ls(struct i2c_client *client, int n, u8 val)
{
- struct pca955x_led *pca955x = i2c_get_clientdata(client);
+ struct pca955x *pca955x = i2c_get_clientdata(client);
i2c_smbus_write_byte_data(client,
pca95xx_num_input_regs(pca955x->chipdef->bits) + 4 + n,
*/
static u8 pca955x_read_ls(struct i2c_client *client, int n)
{
- struct pca955x_led *pca955x = i2c_get_clientdata(client);
+ struct pca955x *pca955x = i2c_get_clientdata(client);
return (u8) i2c_smbus_read_byte_data(client,
pca95xx_num_input_regs(pca955x->chipdef->bits) + 4 + n);
static void pca955x_led_work(struct work_struct *work)
{
- struct pca955x_led *pca955x;
+ struct pca955x_led *pca955x_led;
+ struct pca955x *pca955x;
u8 ls;
int chip_ls; /* which LSx to use (0-3 potentially) */
int ls_led; /* which set of bits within LSx to use (0-3) */
- pca955x = container_of(work, struct pca955x_led, work);
- chip_ls = pca955x->led_num / 4;
- ls_led = pca955x->led_num % 4;
+ pca955x_led = container_of(work, struct pca955x_led, work);
+ pca955x = pca955x_led->pca955x;
+
+ chip_ls = pca955x_led->led_num / 4;
+ ls_led = pca955x_led->led_num % 4;
+
+ mutex_lock(&pca955x->lock);
ls = pca955x_read_ls(pca955x->client, chip_ls);
- switch (pca955x->brightness) {
+ switch (pca955x_led->brightness) {
case LED_FULL:
ls = pca955x_ledsel(ls, ls_led, PCA955X_LS_LED_ON);
break;
* OFF, HALF, or FULL. But, this is probably better than
* just turning off for all other values.
*/
- pca955x_write_pwm(pca955x->client, 1, 255-pca955x->brightness);
+ pca955x_write_pwm(pca955x->client, 1,
+ 255 - pca955x_led->brightness);
ls = pca955x_ledsel(ls, ls_led, PCA955X_LS_BLINK1);
break;
}
pca955x_write_ls(pca955x->client, chip_ls, ls);
+
+ mutex_unlock(&pca955x->lock);
}
static void pca955x_led_set(struct led_classdev *led_cdev, enum led_brightness value)
pca955x = container_of(led_cdev, struct pca955x_led, led_cdev);
- spin_lock(&pca955x->lock);
pca955x->brightness = value;
/*
* can sleep.
*/
schedule_work(&pca955x->work);
-
- spin_unlock(&pca955x->lock);
}
static int __devinit pca955x_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
- struct pca955x_led *pca955x;
+ struct pca955x *pca955x;
+ struct pca955x_led *pca955x_led;
struct pca955x_chipdef *chip;
struct i2c_adapter *adapter;
struct led_platform_data *pdata;
}
}
- pca955x = kzalloc(sizeof(*pca955x) * chip->bits, GFP_KERNEL);
+ pca955x = kzalloc(sizeof(*pca955x), GFP_KERNEL);
if (!pca955x)
return -ENOMEM;
+ pca955x->leds = kzalloc(sizeof(*pca955x_led) * chip->bits, GFP_KERNEL);
+ if (!pca955x->leds) {
+ err = -ENOMEM;
+ goto exit_nomem;
+ }
+
i2c_set_clientdata(client, pca955x);
+ mutex_init(&pca955x->lock);
+ pca955x->client = client;
+ pca955x->chipdef = chip;
+
for (i = 0; i < chip->bits; i++) {
- pca955x[i].chipdef = chip;
- pca955x[i].client = client;
- pca955x[i].led_num = i;
+ pca955x_led = &pca955x->leds[i];
+ pca955x_led->led_num = i;
+ pca955x_led->pca955x = pca955x;
/* Platform data can specify LED names and default triggers */
if (pdata) {
if (pdata->leds[i].name)
- snprintf(pca955x[i].name,
- sizeof(pca955x[i].name), "pca955x:%s",
- pdata->leds[i].name);
+ snprintf(pca955x_led->name,
+ sizeof(pca955x_led->name), "pca955x:%s",
+ pdata->leds[i].name);
if (pdata->leds[i].default_trigger)
- pca955x[i].led_cdev.default_trigger =
+ pca955x_led->led_cdev.default_trigger =
pdata->leds[i].default_trigger;
} else {
- snprintf(pca955x[i].name, sizeof(pca955x[i].name),
+ snprintf(pca955x_led->name, sizeof(pca955x_led->name),
"pca955x:%d", i);
}
- spin_lock_init(&pca955x[i].lock);
-
- pca955x[i].led_cdev.name = pca955x[i].name;
- pca955x[i].led_cdev.brightness_set = pca955x_led_set;
+ pca955x_led->led_cdev.name = pca955x_led->name;
+ pca955x_led->led_cdev.brightness_set = pca955x_led_set;
- INIT_WORK(&pca955x[i].work, pca955x_led_work);
+ INIT_WORK(&pca955x_led->work, pca955x_led_work);
- err = led_classdev_register(&client->dev, &pca955x[i].led_cdev);
+ err = led_classdev_register(&client->dev,
+ &pca955x_led->led_cdev);
if (err < 0)
goto exit;
}
exit:
while (i--) {
- led_classdev_unregister(&pca955x[i].led_cdev);
- cancel_work_sync(&pca955x[i].work);
+ led_classdev_unregister(&pca955x->leds[i].led_cdev);
+ cancel_work_sync(&pca955x->leds[i].work);
}
+ kfree(pca955x->leds);
+exit_nomem:
kfree(pca955x);
return err;
static int __devexit pca955x_remove(struct i2c_client *client)
{
- struct pca955x_led *pca955x = i2c_get_clientdata(client);
+ struct pca955x *pca955x = i2c_get_clientdata(client);
int i;
for (i = 0; i < pca955x->chipdef->bits; i++) {
- led_classdev_unregister(&pca955x[i].led_cdev);
- cancel_work_sync(&pca955x[i].work);
+ led_classdev_unregister(&pca955x->leds[i].led_cdev);
+ cancel_work_sync(&pca955x->leds[i].work);
}
+ kfree(pca955x->leds);
kfree(pca955x);
return 0;
ret = fb_register_client(&n->notifier);
if (ret)
dev_err(led->dev, "unable to register backlight trigger\n");
+ led->activated = true;
return;
struct bl_trig_notifier *n =
(struct bl_trig_notifier *) led->trigger_data;
- if (n) {
+ if (led->activated) {
device_remove_file(led->dev, &dev_attr_inverted);
fb_unregister_client(&n->notifier);
kfree(n);
+ led->activated = false;
}
}
gpio_data->led = led;
led->trigger_data = gpio_data;
INIT_WORK(&gpio_data->work, gpio_trig_work);
+ led->activated = true;
return;
{
struct gpio_trig_data *gpio_data = led->trigger_data;
- if (gpio_data) {
+ if (led->activated) {
device_remove_file(led->dev, &dev_attr_gpio);
device_remove_file(led->dev, &dev_attr_inverted);
device_remove_file(led->dev, &dev_attr_desired_brightness);
if (gpio_data->gpio != 0)
free_irq(gpio_to_irq(gpio_data->gpio), led);
kfree(gpio_data);
+ led->activated = false;
}
}
#include <linux/timer.h>
#include <linux/sched.h>
#include <linux/leds.h>
+#include <linux/reboot.h>
#include "leds.h"
struct heartbeat_trig_data {
led_heartbeat_function, (unsigned long) led_cdev);
heartbeat_data->phase = 0;
led_heartbeat_function(heartbeat_data->timer.data);
+ led_cdev->activated = true;
}
static void heartbeat_trig_deactivate(struct led_classdev *led_cdev)
{
struct heartbeat_trig_data *heartbeat_data = led_cdev->trigger_data;
- if (heartbeat_data) {
+ if (led_cdev->activated) {
del_timer_sync(&heartbeat_data->timer);
kfree(heartbeat_data);
+ led_cdev->activated = false;
}
}
.deactivate = heartbeat_trig_deactivate,
};
+static int heartbeat_reboot_notifier(struct notifier_block *nb,
+ unsigned long code, void *unused)
+{
+ led_trigger_unregister(&heartbeat_led_trigger);
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block heartbeat_reboot_nb = {
+ .notifier_call = heartbeat_reboot_notifier,
+};
+
+static struct notifier_block heartbeat_panic_nb = {
+ .notifier_call = heartbeat_reboot_notifier,
+};
+
static int __init heartbeat_trig_init(void)
{
- return led_trigger_register(&heartbeat_led_trigger);
+ int rc = led_trigger_register(&heartbeat_led_trigger);
+
+ if (!rc) {
+ atomic_notifier_chain_register(&panic_notifier_list,
+ &heartbeat_panic_nb);
+ register_reboot_notifier(&heartbeat_reboot_nb);
+ }
+ return rc;
}
static void __exit heartbeat_trig_exit(void)
{
+ unregister_reboot_notifier(&heartbeat_reboot_nb);
+ atomic_notifier_chain_unregister(&panic_notifier_list,
+ &heartbeat_panic_nb);
led_trigger_unregister(&heartbeat_led_trigger);
}
struct device_attribute *attr, const char *buf, size_t size)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
- int ret = -EINVAL;
- char *after;
- unsigned long state = simple_strtoul(buf, &after, 10);
- size_t count = after - buf;
-
- if (isspace(*after))
- count++;
-
- if (count == size) {
- led_blink_set(led_cdev, &state, &led_cdev->blink_delay_off);
- led_cdev->blink_delay_on = state;
- ret = count;
- }
+ unsigned long state;
+ ssize_t ret = -EINVAL;
+
+ ret = kstrtoul(buf, 10, &state);
+ if (ret)
+ return ret;
- return ret;
+ led_blink_set(led_cdev, &state, &led_cdev->blink_delay_off);
+ led_cdev->blink_delay_on = state;
+
+ return size;
}
static ssize_t led_delay_off_show(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
- int ret = -EINVAL;
- char *after;
- unsigned long state = simple_strtoul(buf, &after, 10);
- size_t count = after - buf;
-
- if (isspace(*after))
- count++;
-
- if (count == size) {
- led_blink_set(led_cdev, &led_cdev->blink_delay_on, &state);
- led_cdev->blink_delay_off = state;
- ret = count;
- }
+ unsigned long state;
+ ssize_t ret = -EINVAL;
- return ret;
+ ret = kstrtoul(buf, 10, &state);
+ if (ret)
+ return ret;
+
+ led_blink_set(led_cdev, &led_cdev->blink_delay_on, &state);
+ led_cdev->blink_delay_off = state;
+
+ return size;
}
static DEVICE_ATTR(delay_on, 0644, led_delay_on_show, led_delay_on_store);
led_blink_set(led_cdev, &led_cdev->blink_delay_on,
&led_cdev->blink_delay_off);
-
- led_cdev->trigger_data = (void *)1;
+ led_cdev->activated = true;
return;
static void timer_trig_deactivate(struct led_classdev *led_cdev)
{
- if (led_cdev->trigger_data) {
+ if (led_cdev->activated) {
device_remove_file(led_cdev->dev, &dev_attr_delay_on);
device_remove_file(led_cdev->dev, &dev_attr_delay_off);
+ led_cdev->activated = false;
}
/* Stop blinking */
--- /dev/null
+/*
+ * LED Kernel Transient Trigger
+ *
+ * Copyright (C) 2012 Shuah Khan <shuahkhan@gmail.com>
+ *
+ * Based on Richard Purdie's ledtrig-timer.c and Atsushi Nemoto's
+ * ledtrig-heartbeat.c
+ * Design and use-case input from Jonas Bonn <jonas@southpole.se> and
+ * Neil Brown <neilb@suse.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+/*
+ * Transient trigger allows one shot timer activation. Please refer to
+ * Documentation/leds/ledtrig-transient.txt for details
+*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/timer.h>
+#include <linux/leds.h>
+#include "leds.h"
+
+struct transient_trig_data {
+ int activate;
+ int state;
+ int restore_state;
+ unsigned long duration;
+ struct timer_list timer;
+};
+
+static void transient_timer_function(unsigned long data)
+{
+ struct led_classdev *led_cdev = (struct led_classdev *) data;
+ struct transient_trig_data *transient_data = led_cdev->trigger_data;
+
+ transient_data->activate = 0;
+ led_set_brightness(led_cdev, transient_data->restore_state);
+}
+
+static ssize_t transient_activate_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct transient_trig_data *transient_data = led_cdev->trigger_data;
+
+ return sprintf(buf, "%d\n", transient_data->activate);
+}
+
+static ssize_t transient_activate_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t size)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct transient_trig_data *transient_data = led_cdev->trigger_data;
+ unsigned long state;
+ ssize_t ret;
+
+ ret = kstrtoul(buf, 10, &state);
+ if (ret)
+ return ret;
+
+ if (state != 1 && state != 0)
+ return -EINVAL;
+
+ /* cancel the running timer */
+ if (state == 0 && transient_data->activate == 1) {
+ del_timer(&transient_data->timer);
+ transient_data->activate = state;
+ led_set_brightness(led_cdev, transient_data->restore_state);
+ return size;
+ }
+
+ /* start timer if there is no active timer */
+ if (state == 1 && transient_data->activate == 0 &&
+ transient_data->duration != 0) {
+ transient_data->activate = state;
+ led_set_brightness(led_cdev, transient_data->state);
+ transient_data->restore_state =
+ (transient_data->state == LED_FULL) ? LED_OFF : LED_FULL;
+ mod_timer(&transient_data->timer,
+ jiffies + transient_data->duration);
+ }
+
+ /* state == 0 && transient_data->activate == 0
+ timer is not active - just return */
+ /* state == 1 && transient_data->activate == 1
+ timer is already active - just return */
+
+ return size;
+}
+
+static ssize_t transient_duration_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct transient_trig_data *transient_data = led_cdev->trigger_data;
+
+ return sprintf(buf, "%lu\n", transient_data->duration);
+}
+
+static ssize_t transient_duration_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t size)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct transient_trig_data *transient_data = led_cdev->trigger_data;
+ unsigned long state;
+ ssize_t ret;
+
+ ret = kstrtoul(buf, 10, &state);
+ if (ret)
+ return ret;
+
+ transient_data->duration = state;
+ return size;
+}
+
+static ssize_t transient_state_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct transient_trig_data *transient_data = led_cdev->trigger_data;
+ int state;
+
+ state = (transient_data->state == LED_FULL) ? 1 : 0;
+ return sprintf(buf, "%d\n", state);
+}
+
+static ssize_t transient_state_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t size)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct transient_trig_data *transient_data = led_cdev->trigger_data;
+ unsigned long state;
+ ssize_t ret;
+
+ ret = kstrtoul(buf, 10, &state);
+ if (ret)
+ return ret;
+
+ if (state != 1 && state != 0)
+ return -EINVAL;
+
+ transient_data->state = (state == 1) ? LED_FULL : LED_OFF;
+ return size;
+}
+
+static DEVICE_ATTR(activate, 0644, transient_activate_show,
+ transient_activate_store);
+static DEVICE_ATTR(duration, 0644, transient_duration_show,
+ transient_duration_store);
+static DEVICE_ATTR(state, 0644, transient_state_show, transient_state_store);
+
+static void transient_trig_activate(struct led_classdev *led_cdev)
+{
+ int rc;
+ struct transient_trig_data *tdata;
+
+ tdata = kzalloc(sizeof(struct transient_trig_data), GFP_KERNEL);
+ if (!tdata) {
+ dev_err(led_cdev->dev,
+ "unable to allocate transient trigger\n");
+ return;
+ }
+ led_cdev->trigger_data = tdata;
+
+ rc = device_create_file(led_cdev->dev, &dev_attr_activate);
+ if (rc)
+ goto err_out;
+
+ rc = device_create_file(led_cdev->dev, &dev_attr_duration);
+ if (rc)
+ goto err_out_duration;
+
+ rc = device_create_file(led_cdev->dev, &dev_attr_state);
+ if (rc)
+ goto err_out_state;
+
+ setup_timer(&tdata->timer, transient_timer_function,
+ (unsigned long) led_cdev);
+ led_cdev->activated = true;
+
+ return;
+
+err_out_state:
+ device_remove_file(led_cdev->dev, &dev_attr_duration);
+err_out_duration:
+ device_remove_file(led_cdev->dev, &dev_attr_activate);
+err_out:
+ dev_err(led_cdev->dev, "unable to register transient trigger\n");
+ led_cdev->trigger_data = NULL;
+ kfree(tdata);
+}
+
+static void transient_trig_deactivate(struct led_classdev *led_cdev)
+{
+ struct transient_trig_data *transient_data = led_cdev->trigger_data;
+
+ if (led_cdev->activated) {
+ del_timer_sync(&transient_data->timer);
+ led_set_brightness(led_cdev, transient_data->restore_state);
+ device_remove_file(led_cdev->dev, &dev_attr_activate);
+ device_remove_file(led_cdev->dev, &dev_attr_duration);
+ device_remove_file(led_cdev->dev, &dev_attr_state);
+ led_cdev->trigger_data = NULL;
+ led_cdev->activated = false;
+ kfree(transient_data);
+ }
+}
+
+static struct led_trigger transient_trigger = {
+ .name = "transient",
+ .activate = transient_trig_activate,
+ .deactivate = transient_trig_deactivate,
+};
+
+static int __init transient_trig_init(void)
+{
+ return led_trigger_register(&transient_trigger);
+}
+
+static void __exit transient_trig_exit(void)
+{
+ led_trigger_unregister(&transient_trigger);
+}
+
+module_init(transient_trig_init);
+module_exit(transient_trig_exit);
+
+MODULE_AUTHOR("Shuah Khan <shuahkhan@gmail.com>");
+MODULE_DESCRIPTION("Transient LED trigger");
+MODULE_LICENSE("GPL");
unsigned long port;
u32 msize;
u32 psize;
- u8 revision;
int r = -ENODEV;
struct pci_dev *pdev;
return r;
}
- pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision);
-
if (sizeof(dma_addr_t) > 4) {
const uint64_t required_mask = dma_get_required_mask
(&pdev->dev);
MPT_ADAPTER *ioc;
u8 cb_idx;
int r = -ENODEV;
- u8 revision;
u8 pcixcmd;
static int mpt_ids = 0;
#ifdef CONFIG_PROC_FS
dinitprintk(ioc, printk(MYIOC_s_INFO_FMT "facts @ %p, pfacts[0] @ %p\n",
ioc->name, &ioc->facts, &ioc->pfacts[0]));
- pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision);
- mpt_get_product_name(pdev->vendor, pdev->device, revision, ioc->prod_name);
+ mpt_get_product_name(pdev->vendor, pdev->device, pdev->revision,
+ ioc->prod_name);
switch (pdev->device)
{
break;
case MPI_MANUFACTPAGE_DEVICEID_FC929X:
- if (revision < XL_929) {
+ if (pdev->revision < XL_929) {
/* 929X Chip Fix. Set Split transactions level
* for PCIX. Set MOST bits to zero.
*/
/* 1030 Chip Fix. Disable Split transactions
* for PCIX. Set MOST bits to zero if Rev < C0( = 8).
*/
- if (revision < C0_1030) {
+ if (pdev->revision < C0_1030) {
pci_read_config_byte(pdev, 0x6a, &pcixcmd);
pcixcmd &= 0x8F;
pci_write_config_byte(pdev, 0x6a, pcixcmd);
printk(MYIOC_s_INFO_FMT "%s: host reset in"
" progress mpt_config timed out.!!\n",
__func__, ioc->name);
+ mutex_unlock(&ioc->mptbase_cmds.mutex);
return -EFAULT;
}
spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
int iocnum;
unsigned int port;
int cim_rev;
- u8 revision;
struct scsi_device *sdev;
VirtDevice *vdevice;
pdev = (struct pci_dev *) ioc->pcidev;
karg->pciId = pdev->device;
- pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision);
- karg->hwRev = revision;
+ karg->hwRev = pdev->revision;
karg->subSystemDevice = pdev->subsystem_device;
karg->subSystemVendor = pdev->subsystem_vendor;
To compile this driver as a module, choose M here: the
module will be called ucb1400_core.
+config MFD_LM3533
+ tristate "LM3533 Lighting Power chip"
+ depends on I2C
+ select MFD_CORE
+ select REGMAP_I2C
+ help
+ Say yes here to enable support for National Semiconductor / TI
+ LM3533 Lighting Power chips.
+
+ This driver provides common support for accessing the device;
+ additional drivers must be enabled in order to use the LED,
+ backlight or ambient-light-sensor functionality of the device.
+
config TPS6105X
tristate "TPS61050/61052 Boost Converters"
depends on I2C
bool "TPS65910 Power Management chip"
depends on I2C=y && GPIOLIB
select MFD_CORE
- select GPIO_TPS65910
select REGMAP_I2C
+ select IRQ_DOMAIN
help
if you say yes here you get support for the TPS65910 series of
Power Management chips.
individual components like LCD backlight, LEDs, GPIOs and Kepad
under the corresponding menus.
+config MFD_MAX77693
+ bool "Maxim Semiconductor MAX77693 PMIC Support"
+ depends on I2C=y && GENERIC_HARDIRQS
+ select MFD_CORE
+ select REGMAP_I2C
+ help
+ Say yes here to support for Maxim Semiconductor MAX77693.
+ This is a companion Power Management IC with Flash, Haptic, Charger,
+ and MUIC(Micro USB Interface Controller) controls on chip.
+ This driver provides common support for accessing the device;
+ additional drivers must be enabled in order to use the functionality
+ of the device.
+
config MFD_MAX8925
bool "Maxim Semiconductor MAX8925 PMIC Support"
depends on I2C=y && GENERIC_HARDIRQS
of the device
config MFD_WM8400
- tristate "Support Wolfson Microelectronics WM8400"
+ bool "Support Wolfson Microelectronics WM8400"
select MFD_CORE
- depends on I2C
+ depends on I2C=y
select REGMAP_I2C
help
Support for the Wolfson Microelecronics WM8400 PMIC and audio
select MFD_CORE
select MFD_WM831X
select REGMAP_I2C
+ select IRQ_DOMAIN
depends on I2C=y && GENERIC_HARDIRQS
help
Support for the Wolfson Microelecronics WM831x and WM832x PMICs
select MFD_CORE
select MFD_WM831X
select REGMAP_SPI
+ select IRQ_DOMAIN
depends on SPI_MASTER && GENERIC_HARDIRQS
help
Support for the Wolfson Microelecronics WM831x and WM832x PMICs
tristate
config MFD_MC13XXX
- tristate "Support Freescale MC13783 and MC13892"
- depends on SPI_MASTER
+ tristate
+ depends on SPI_MASTER || I2C
select MFD_CORE
select MFD_MC13783
help
- Support for the Freescale (Atlas) PMIC and audio CODECs
- MC13783 and MC13892.
- This driver provides common support for accessing the device,
+ Enable support for the Freescale MC13783 and MC13892 PMICs.
+ This driver provides common support for accessing the device,
additional drivers must be enabled in order to use the
functionality of the device.
+config MFD_MC13XXX_SPI
+ tristate "Freescale MC13783 and MC13892 SPI interface"
+ depends on SPI_MASTER
+ select REGMAP_SPI
+ select MFD_MC13XXX
+ help
+ Select this if your MC13xxx is connected via an SPI bus.
+
+config MFD_MC13XXX_I2C
+ tristate "Freescale MC13892 I2C interface"
+ depends on I2C
+ select REGMAP_I2C
+ select MFD_MC13XXX
+ help
+ Select this if your MC13xxx is connected via an I2C bus.
+
config ABX500_CORE
bool "ST-Ericsson ABX500 Mixed Signal Circuit register functions"
default y if ARCH_U300 || ARCH_U8500
config AB8500_CORE
bool "ST-Ericsson AB8500 Mixed Signal Power Management chip"
- depends on GENERIC_HARDIRQS && ABX500_CORE
+ depends on GENERIC_HARDIRQS && ABX500_CORE && MFD_DB8500_PRCMU
select MFD_CORE
help
Select this option to enable access to AB8500 power management
LPC bridge function of the Intel SCH provides support for
System Management Bus and General Purpose I/O.
+config LPC_ICH
+ tristate "Intel ICH LPC"
+ depends on PCI
+ select MFD_CORE
+ help
+ The LPC bridge function of the Intel ICH provides support for
+ many functional units. This driver provides needed support for
+ other drivers to control these functions, currently GPIO and
+ watchdog.
+
config MFD_RDC321X
tristate "Support for RDC-R321x southbridge"
select MFD_CORE
Additional drivers must be enabled in order to use the
different functionality of the device.
+config MFD_STA2X11
+ bool "STA2X11 multi function device support"
+ depends on STA2X11
+ select MFD_CORE
+
config MFD_ANATOP
bool "Support for Freescale i.MX on-chip ANATOP controller"
depends on SOC_IMX6Q
obj-$(CONFIG_MFD_DM355EVM_MSP) += dm355evm_msp.o
obj-$(CONFIG_MFD_TI_SSP) += ti-ssp.o
+obj-$(CONFIG_MFD_STA2X11) += sta2x11-mfd.o
obj-$(CONFIG_MFD_STMPE) += stmpe.o
obj-$(CONFIG_STMPE_I2C) += stmpe-i2c.o
obj-$(CONFIG_STMPE_SPI) += stmpe-spi.o
obj-$(CONFIG_TWL6040_CORE) += twl6040-core.o twl6040-irq.o
obj-$(CONFIG_MFD_MC13XXX) += mc13xxx-core.o
+obj-$(CONFIG_MFD_MC13XXX_SPI) += mc13xxx-spi.o
+obj-$(CONFIG_MFD_MC13XXX_I2C) += mc13xxx-i2c.o
obj-$(CONFIG_MFD_CORE) += mfd-core.o
obj-$(CONFIG_MFD_DA9052_SPI) += da9052-spi.o
obj-$(CONFIG_MFD_DA9052_I2C) += da9052-i2c.o
+obj-$(CONFIG_MFD_MAX77693) += max77693.o max77693-irq.o
max8925-objs := max8925-core.o max8925-i2c.o
obj-$(CONFIG_MFD_MAX8925) += max8925.o
obj-$(CONFIG_MFD_MAX8997) += max8997.o max8997-irq.o
obj-$(CONFIG_ABX500_CORE) += abx500-core.o
obj-$(CONFIG_AB3100_CORE) += ab3100-core.o
obj-$(CONFIG_AB3100_OTP) += ab3100-otp.o
-obj-$(CONFIG_AB8500_CORE) += ab8500-core.o ab8500-sysctrl.o
obj-$(CONFIG_AB8500_DEBUG) += ab8500-debugfs.o
obj-$(CONFIG_AB8500_GPADC) += ab8500-gpadc.o
obj-$(CONFIG_MFD_DB8500_PRCMU) += db8500-prcmu.o
-# ab8500-i2c need to come after db8500-prcmu (which provides the channel)
-obj-$(CONFIG_AB8500_I2C_CORE) += ab8500-i2c.o
+# ab8500-core need to come after db8500-prcmu (which provides the channel)
+obj-$(CONFIG_AB8500_CORE) += ab8500-core.o ab8500-sysctrl.o
obj-$(CONFIG_MFD_TIMBERDALE) += timberdale.o
obj-$(CONFIG_PMIC_ADP5520) += adp5520.o
obj-$(CONFIG_LPC_SCH) += lpc_sch.o
+obj-$(CONFIG_LPC_ICH) += lpc_ich.o
obj-$(CONFIG_MFD_RDC321X) += rdc321x-southbridge.o
obj-$(CONFIG_MFD_JANZ_CMODIO) += janz-cmodio.o
obj-$(CONFIG_MFD_JZ4740_ADC) += jz4740-adc.o
#include <linux/mfd/core.h>
#include <linux/mfd/abx500.h>
#include <linux/mfd/abx500/ab8500.h>
+#include <linux/mfd/dbx500-prcmu.h>
#include <linux/regulator/ab8500.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
/*
* Interrupt register offsets
#define AB8500_IT_MASK23_REG 0x56
#define AB8500_IT_MASK24_REG 0x57
+/*
+ * latch hierarchy registers
+ */
+#define AB8500_IT_LATCHHIER1_REG 0x60
+#define AB8500_IT_LATCHHIER2_REG 0x61
+#define AB8500_IT_LATCHHIER3_REG 0x62
+
+#define AB8500_IT_LATCHHIER_NUM 3
+
#define AB8500_REV_REG 0x80
#define AB8500_IC_NAME_REG 0x82
#define AB8500_SWITCH_OFF_STATUS 0x00
#define AB8500_TURN_ON_STATUS 0x00
+static bool no_bm; /* No battery management */
+module_param(no_bm, bool, S_IRUGO);
+
#define AB9540_MODEM_CTRL2_REG 0x23
#define AB9540_MODEM_CTRL2_SWDBBRSTN_BIT BIT(2)
[AB8500_VERSION_AB8540] = "AB8540",
};
+static int ab8500_i2c_write(struct ab8500 *ab8500, u16 addr, u8 data)
+{
+ int ret;
+
+ ret = prcmu_abb_write((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
+ if (ret < 0)
+ dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
+ return ret;
+}
+
+static int ab8500_i2c_write_masked(struct ab8500 *ab8500, u16 addr, u8 mask,
+ u8 data)
+{
+ int ret;
+
+ ret = prcmu_abb_write_masked((u8)(addr >> 8), (u8)(addr & 0xFF), &data,
+ &mask, 1);
+ if (ret < 0)
+ dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
+ return ret;
+}
+
+static int ab8500_i2c_read(struct ab8500 *ab8500, u16 addr)
+{
+ int ret;
+ u8 data;
+
+ ret = prcmu_abb_read((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
+ if (ret < 0) {
+ dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
+ return ret;
+ }
+ return (int)data;
+}
+
static int ab8500_get_chip_id(struct device *dev)
{
struct ab8500 *ab8500;
static int ab8500_set_register(struct device *dev, u8 bank,
u8 reg, u8 value)
{
+ int ret;
struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
- return set_register_interruptible(ab8500, bank, reg, value);
+ atomic_inc(&ab8500->transfer_ongoing);
+ ret = set_register_interruptible(ab8500, bank, reg, value);
+ atomic_dec(&ab8500->transfer_ongoing);
+ return ret;
}
static int get_register_interruptible(struct ab8500 *ab8500, u8 bank,
static int ab8500_get_register(struct device *dev, u8 bank,
u8 reg, u8 *value)
{
+ int ret;
struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
- return get_register_interruptible(ab8500, bank, reg, value);
+ atomic_inc(&ab8500->transfer_ongoing);
+ ret = get_register_interruptible(ab8500, bank, reg, value);
+ atomic_dec(&ab8500->transfer_ongoing);
+ return ret;
}
static int mask_and_set_register_interruptible(struct ab8500 *ab8500, u8 bank,
static int ab8500_mask_and_set_register(struct device *dev,
u8 bank, u8 reg, u8 bitmask, u8 bitvalues)
{
+ int ret;
struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
- return mask_and_set_register_interruptible(ab8500, bank, reg,
- bitmask, bitvalues);
-
+ atomic_inc(&ab8500->transfer_ongoing);
+ ret= mask_and_set_register_interruptible(ab8500, bank, reg,
+ bitmask, bitvalues);
+ atomic_dec(&ab8500->transfer_ongoing);
+ return ret;
}
static struct abx500_ops ab8500_ops = {
struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
mutex_lock(&ab8500->irq_lock);
+ atomic_inc(&ab8500->transfer_ongoing);
}
static void ab8500_irq_sync_unlock(struct irq_data *data)
reg = AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i];
set_register_interruptible(ab8500, AB8500_INTERRUPT, reg, new);
}
-
+ atomic_dec(&ab8500->transfer_ongoing);
mutex_unlock(&ab8500->irq_lock);
}
.irq_unmask = ab8500_irq_unmask,
};
+static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500,
+ int latch_offset, u8 latch_val)
+{
+ int int_bit = __ffs(latch_val);
+ int line, i;
+
+ do {
+ int_bit = __ffs(latch_val);
+
+ for (i = 0; i < ab8500->mask_size; i++)
+ if (ab8500->irq_reg_offset[i] == latch_offset)
+ break;
+
+ if (i >= ab8500->mask_size) {
+ dev_err(ab8500->dev, "Register offset 0x%2x not declared\n",
+ latch_offset);
+ return -ENXIO;
+ }
+
+ line = (i << 3) + int_bit;
+ latch_val &= ~(1 << int_bit);
+
+ handle_nested_irq(ab8500->irq_base + line);
+ } while (latch_val);
+
+ return 0;
+}
+
+static int ab8500_handle_hierarchical_latch(struct ab8500 *ab8500,
+ int hier_offset, u8 hier_val)
+{
+ int latch_bit, status;
+ u8 latch_offset, latch_val;
+
+ do {
+ latch_bit = __ffs(hier_val);
+ latch_offset = (hier_offset << 3) + latch_bit;
+
+ /* Fix inconsistent ITFromLatch25 bit mapping... */
+ if (unlikely(latch_offset == 17))
+ latch_offset = 24;
+
+ status = get_register_interruptible(ab8500,
+ AB8500_INTERRUPT,
+ AB8500_IT_LATCH1_REG + latch_offset,
+ &latch_val);
+ if (status < 0 || latch_val == 0)
+ goto discard;
+
+ status = ab8500_handle_hierarchical_line(ab8500,
+ latch_offset, latch_val);
+ if (status < 0)
+ return status;
+discard:
+ hier_val &= ~(1 << latch_bit);
+ } while (hier_val);
+
+ return 0;
+}
+
+static irqreturn_t ab8500_hierarchical_irq(int irq, void *dev)
+{
+ struct ab8500 *ab8500 = dev;
+ u8 i;
+
+ dev_vdbg(ab8500->dev, "interrupt\n");
+
+ /* Hierarchical interrupt version */
+ for (i = 0; i < AB8500_IT_LATCHHIER_NUM; i++) {
+ int status;
+ u8 hier_val;
+
+ status = get_register_interruptible(ab8500, AB8500_INTERRUPT,
+ AB8500_IT_LATCHHIER1_REG + i, &hier_val);
+ if (status < 0 || hier_val == 0)
+ continue;
+
+ status = ab8500_handle_hierarchical_latch(ab8500, i, hier_val);
+ if (status < 0)
+ break;
+ }
+ return IRQ_HANDLED;
+}
+
static irqreturn_t ab8500_irq(int irq, void *dev)
{
struct ab8500 *ab8500 = dev;
dev_vdbg(ab8500->dev, "interrupt\n");
+ atomic_inc(&ab8500->transfer_ongoing);
+
for (i = 0; i < ab8500->mask_size; i++) {
int regoffset = ab8500->irq_reg_offset[i];
int status;
handle_nested_irq(ab8500->irq_base + line);
value &= ~(1 << bit);
+
} while (value);
}
-
+ atomic_dec(&ab8500->transfer_ongoing);
return IRQ_HANDLED;
}
}
}
+int ab8500_suspend(struct ab8500 *ab8500)
+{
+ if (atomic_read(&ab8500->transfer_ongoing))
+ return -EINVAL;
+ else
+ return 0;
+}
+
/* AB8500 GPIO Resources */
static struct resource __devinitdata ab8500_gpio_resources[] = {
{
},
};
+static struct resource __devinitdata ab8505_iddet_resources[] = {
+ {
+ .name = "KeyDeglitch",
+ .start = AB8505_INT_KEYDEGLITCH,
+ .end = AB8505_INT_KEYDEGLITCH,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "KP",
+ .start = AB8505_INT_KP,
+ .end = AB8505_INT_KP,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "IKP",
+ .start = AB8505_INT_IKP,
+ .end = AB8505_INT_IKP,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "IKR",
+ .start = AB8505_INT_IKR,
+ .end = AB8505_INT_IKR,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "KeyStuck",
+ .start = AB8505_INT_KEYSTUCK,
+ .end = AB8505_INT_KEYSTUCK,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
static struct resource __devinitdata ab8500_temp_resources[] = {
{
.name = "AB8500_TEMP_WARM",
.num_resources = ARRAY_SIZE(ab8500_rtc_resources),
.resources = ab8500_rtc_resources,
},
- {
- .name = "ab8500-charger",
- .num_resources = ARRAY_SIZE(ab8500_charger_resources),
- .resources = ab8500_charger_resources,
- },
- {
- .name = "ab8500-btemp",
- .num_resources = ARRAY_SIZE(ab8500_btemp_resources),
- .resources = ab8500_btemp_resources,
- },
- {
- .name = "ab8500-fg",
- .num_resources = ARRAY_SIZE(ab8500_fg_resources),
- .resources = ab8500_fg_resources,
- },
- {
- .name = "ab8500-chargalg",
- .num_resources = ARRAY_SIZE(ab8500_chargalg_resources),
- .resources = ab8500_chargalg_resources,
- },
{
.name = "ab8500-acc-det",
.num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
.resources = ab8500_av_acc_detect_resources,
},
- {
- .name = "ab8500-codec",
- },
-
{
.name = "ab8500-poweron-key",
.num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
},
};
+static struct mfd_cell __devinitdata ab8500_bm_devs[] = {
+ {
+ .name = "ab8500-charger",
+ .num_resources = ARRAY_SIZE(ab8500_charger_resources),
+ .resources = ab8500_charger_resources,
+ },
+ {
+ .name = "ab8500-btemp",
+ .num_resources = ARRAY_SIZE(ab8500_btemp_resources),
+ .resources = ab8500_btemp_resources,
+ },
+ {
+ .name = "ab8500-fg",
+ .num_resources = ARRAY_SIZE(ab8500_fg_resources),
+ .resources = ab8500_fg_resources,
+ },
+ {
+ .name = "ab8500-chargalg",
+ .num_resources = ARRAY_SIZE(ab8500_chargalg_resources),
+ .resources = ab8500_chargalg_resources,
+ },
+};
+
static struct mfd_cell __devinitdata ab8500_devs[] = {
{
.name = "ab8500-gpio",
.num_resources = ARRAY_SIZE(ab8500_usb_resources),
.resources = ab8500_usb_resources,
},
+ {
+ .name = "ab8500-codec",
+ },
};
static struct mfd_cell __devinitdata ab9540_devs[] = {
.num_resources = ARRAY_SIZE(ab8500_usb_resources),
.resources = ab8500_usb_resources,
},
+ {
+ .name = "ab9540-codec",
+ },
+};
+
+/* Device list common to ab9540 and ab8505 */
+static struct mfd_cell __devinitdata ab9540_ab8505_devs[] = {
+ {
+ .name = "ab-iddet",
+ .num_resources = ARRAY_SIZE(ab8505_iddet_resources),
+ .resources = ab8505_iddet_resources,
+ },
};
static ssize_t show_chip_id(struct device *dev,
.attrs = ab9540_sysfs_entries,
};
-int __devinit ab8500_init(struct ab8500 *ab8500, enum ab8500_version version)
+static const struct of_device_id ab8500_match[] = {
+ {
+ .compatible = "stericsson,ab8500",
+ .data = (void *)AB8500_VERSION_AB8500,
+ },
+ {},
+};
+
+static int __devinit ab8500_probe(struct platform_device *pdev)
{
- struct ab8500_platform_data *plat = dev_get_platdata(ab8500->dev);
+ struct ab8500_platform_data *plat = dev_get_platdata(&pdev->dev);
+ const struct platform_device_id *platid = platform_get_device_id(pdev);
+ enum ab8500_version version = AB8500_VERSION_UNDEFINED;
+ struct device_node *np = pdev->dev.of_node;
+ struct ab8500 *ab8500;
+ struct resource *resource;
int ret;
int i;
u8 value;
+ ab8500 = kzalloc(sizeof *ab8500, GFP_KERNEL);
+ if (!ab8500)
+ return -ENOMEM;
+
if (plat)
ab8500->irq_base = plat->irq_base;
+ else if (np)
+ ret = of_property_read_u32(np, "stericsson,irq-base", &ab8500->irq_base);
+
+ if (!ab8500->irq_base) {
+ dev_info(&pdev->dev, "couldn't find irq-base\n");
+ ret = -EINVAL;
+ goto out_free_ab8500;
+ }
+
+ ab8500->dev = &pdev->dev;
+
+ resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (!resource) {
+ ret = -ENODEV;
+ goto out_free_ab8500;
+ }
+
+ ab8500->irq = resource->start;
+
+ ab8500->read = ab8500_i2c_read;
+ ab8500->write = ab8500_i2c_write;
+ ab8500->write_masked = ab8500_i2c_write_masked;
mutex_init(&ab8500->lock);
mutex_init(&ab8500->irq_lock);
+ atomic_set(&ab8500->transfer_ongoing, 0);
+
+ platform_set_drvdata(pdev, ab8500);
+
+ if (platid)
+ version = platid->driver_data;
+ else if (np)
+ version = (unsigned int)
+ of_match_device(ab8500_match, &pdev->dev)->data;
if (version != AB8500_VERSION_UNDEFINED)
ab8500->version = version;
ret = get_register_interruptible(ab8500, AB8500_MISC,
AB8500_IC_NAME_REG, &value);
if (ret < 0)
- return ret;
+ goto out_free_ab8500;
ab8500->version = value;
}
ret = get_register_interruptible(ab8500, AB8500_MISC,
AB8500_REV_REG, &value);
if (ret < 0)
- return ret;
+ goto out_free_ab8500;
ab8500->chip_id = value;
if (ret)
goto out_freeoldmask;
- ret = request_threaded_irq(ab8500->irq, NULL, ab8500_irq,
- IRQF_ONESHOT | IRQF_NO_SUSPEND,
- "ab8500", ab8500);
+ /* Activate this feature only in ab9540 */
+ /* till tests are done on ab8500 1p2 or later*/
+ if (is_ab9540(ab8500))
+ ret = request_threaded_irq(ab8500->irq, NULL,
+ ab8500_hierarchical_irq,
+ IRQF_ONESHOT | IRQF_NO_SUSPEND,
+ "ab8500", ab8500);
+ else
+ ret = request_threaded_irq(ab8500->irq, NULL,
+ ab8500_irq,
+ IRQF_ONESHOT | IRQF_NO_SUSPEND,
+ "ab8500", ab8500);
if (ret)
goto out_removeirq;
}
- ret = mfd_add_devices(ab8500->dev, 0, abx500_common_devs,
- ARRAY_SIZE(abx500_common_devs), NULL,
- ab8500->irq_base);
+ if (!np) {
+ ret = mfd_add_devices(ab8500->dev, 0, abx500_common_devs,
+ ARRAY_SIZE(abx500_common_devs), NULL,
+ ab8500->irq_base);
- if (ret)
- goto out_freeirq;
+ if (ret)
+ goto out_freeirq;
+
+ if (is_ab9540(ab8500))
+ ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,
+ ARRAY_SIZE(ab9540_devs), NULL,
+ ab8500->irq_base);
+ else
+ ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs,
+ ARRAY_SIZE(ab8500_devs), NULL,
+ ab8500->irq_base);
+ if (ret)
+ goto out_freeirq;
- if (is_ab9540(ab8500))
- ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,
- ARRAY_SIZE(ab9540_devs), NULL,
- ab8500->irq_base);
- else
- ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs,
- ARRAY_SIZE(ab9540_devs), NULL,
- ab8500->irq_base);
- if (ret)
- goto out_freeirq;
+ if (is_ab9540(ab8500) || is_ab8505(ab8500))
+ ret = mfd_add_devices(ab8500->dev, 0, ab9540_ab8505_devs,
+ ARRAY_SIZE(ab9540_ab8505_devs), NULL,
+ ab8500->irq_base);
+ if (ret)
+ goto out_freeirq;
+ }
+
+ if (!no_bm) {
+ /* Add battery management devices */
+ ret = mfd_add_devices(ab8500->dev, 0, ab8500_bm_devs,
+ ARRAY_SIZE(ab8500_bm_devs), NULL,
+ ab8500->irq_base);
+ if (ret)
+ dev_err(ab8500->dev, "error adding bm devices\n");
+ }
if (is_ab9540(ab8500))
ret = sysfs_create_group(&ab8500->dev->kobj,
kfree(ab8500->oldmask);
out_freemask:
kfree(ab8500->mask);
+out_free_ab8500:
+ kfree(ab8500);
return ret;
}
-int __devexit ab8500_exit(struct ab8500 *ab8500)
+static int __devexit ab8500_remove(struct platform_device *pdev)
{
+ struct ab8500 *ab8500 = platform_get_drvdata(pdev);
+
if (is_ab9540(ab8500))
sysfs_remove_group(&ab8500->dev->kobj, &ab9540_attr_group);
else
}
kfree(ab8500->oldmask);
kfree(ab8500->mask);
+ kfree(ab8500);
return 0;
}
+static const struct platform_device_id ab8500_id[] = {
+ { "ab8500-core", AB8500_VERSION_AB8500 },
+ { "ab8505-i2c", AB8500_VERSION_AB8505 },
+ { "ab9540-i2c", AB8500_VERSION_AB9540 },
+ { "ab8540-i2c", AB8500_VERSION_AB8540 },
+ { }
+};
+
+static struct platform_driver ab8500_core_driver = {
+ .driver = {
+ .name = "ab8500-core",
+ .owner = THIS_MODULE,
+ .of_match_table = ab8500_match,
+ },
+ .probe = ab8500_probe,
+ .remove = __devexit_p(ab8500_remove),
+ .id_table = ab8500_id,
+};
+
+static int __init ab8500_core_init(void)
+{
+ return platform_driver_register(&ab8500_core_driver);
+}
+
+static void __exit ab8500_core_exit(void)
+{
+ platform_driver_unregister(&ab8500_core_driver);
+}
+arch_initcall(ab8500_core_init);
+module_exit(ab8500_core_exit);
+
MODULE_AUTHOR("Mattias Wallin, Srinidhi Kasagar, Rabin Vincent");
MODULE_DESCRIPTION("AB8500 MFD core");
MODULE_LICENSE("GPL v2");
return 0;
}
+static const struct of_device_id ab8500_debug_match[] = {
+ { .compatible = "stericsson,ab8500-debug", },
+ {}
+};
+
static struct platform_driver ab8500_debug_driver = {
.driver = {
.name = "ab8500-debug",
.owner = THIS_MODULE,
+ .of_match_table = ab8500_debug_match,
},
.probe = ab8500_debug_probe,
.remove = __devexit_p(ab8500_debug_remove)
gpadc->irq = platform_get_irq_byname(pdev, "SW_CONV_END");
if (gpadc->irq < 0) {
- dev_err(gpadc->dev, "failed to get platform irq-%d\n",
+ dev_err(&pdev->dev, "failed to get platform irq-%d\n",
gpadc->irq);
ret = gpadc->irq;
goto fail;
return 0;
}
+static const struct of_device_id ab8500_gpadc_match[] = {
+ { .compatible = "stericsson,ab8500-gpadc", },
+ {}
+};
+
static struct platform_driver ab8500_gpadc_driver = {
.probe = ab8500_gpadc_probe,
.remove = __devexit_p(ab8500_gpadc_remove),
.driver = {
.name = "ab8500-gpadc",
.owner = THIS_MODULE,
+ .of_match_table = ab8500_gpadc_match,
},
};
+++ /dev/null
-/*
- * Copyright (C) ST-Ericsson SA 2010
- * Author: Mattias Wallin <mattias.wallin@stericsson.com> for ST-Ericsson.
- * License Terms: GNU General Public License v2
- * This file was based on drivers/mfd/ab8500-spi.c
- */
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/mfd/abx500/ab8500.h>
-#include <linux/mfd/dbx500-prcmu.h>
-
-static int ab8500_i2c_write(struct ab8500 *ab8500, u16 addr, u8 data)
-{
- int ret;
-
- ret = prcmu_abb_write((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
- if (ret < 0)
- dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
- return ret;
-}
-
-static int ab8500_i2c_write_masked(struct ab8500 *ab8500, u16 addr, u8 mask,
- u8 data)
-{
- int ret;
-
- ret = prcmu_abb_write_masked((u8)(addr >> 8), (u8)(addr & 0xFF), &data,
- &mask, 1);
- if (ret < 0)
- dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
- return ret;
-}
-
-static int ab8500_i2c_read(struct ab8500 *ab8500, u16 addr)
-{
- int ret;
- u8 data;
-
- ret = prcmu_abb_read((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
- if (ret < 0) {
- dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
- return ret;
- }
- return (int)data;
-}
-
-static int __devinit ab8500_i2c_probe(struct platform_device *plf)
-{
- const struct platform_device_id *platid = platform_get_device_id(plf);
- struct ab8500 *ab8500;
- struct resource *resource;
- int ret;
-
- ab8500 = kzalloc(sizeof *ab8500, GFP_KERNEL);
- if (!ab8500)
- return -ENOMEM;
-
- ab8500->dev = &plf->dev;
-
- resource = platform_get_resource(plf, IORESOURCE_IRQ, 0);
- if (!resource) {
- kfree(ab8500);
- return -ENODEV;
- }
-
- ab8500->irq = resource->start;
-
- ab8500->read = ab8500_i2c_read;
- ab8500->write = ab8500_i2c_write;
- ab8500->write_masked = ab8500_i2c_write_masked;
-
- platform_set_drvdata(plf, ab8500);
-
- ret = ab8500_init(ab8500, platid->driver_data);
- if (ret)
- kfree(ab8500);
-
-
- return ret;
-}
-
-static int __devexit ab8500_i2c_remove(struct platform_device *plf)
-{
- struct ab8500 *ab8500 = platform_get_drvdata(plf);
-
- ab8500_exit(ab8500);
- kfree(ab8500);
-
- return 0;
-}
-
-static const struct platform_device_id ab8500_id[] = {
- { "ab8500-i2c", AB8500_VERSION_AB8500 },
- { "ab8505-i2c", AB8500_VERSION_AB8505 },
- { "ab9540-i2c", AB8500_VERSION_AB9540 },
- { "ab8540-i2c", AB8500_VERSION_AB8540 },
- { }
-};
-
-static struct platform_driver ab8500_i2c_driver = {
- .driver = {
- .name = "ab8500-i2c",
- .owner = THIS_MODULE,
- },
- .probe = ab8500_i2c_probe,
- .remove = __devexit_p(ab8500_i2c_remove),
- .id_table = ab8500_id,
-};
-
-static int __init ab8500_i2c_init(void)
-{
- return platform_driver_register(&ab8500_i2c_driver);
-}
-
-static void __exit ab8500_i2c_exit(void)
-{
- platform_driver_unregister(&ab8500_i2c_driver);
-}
-arch_initcall(ab8500_i2c_init);
-module_exit(ab8500_i2c_exit);
-
-MODULE_AUTHOR("Mattias WALLIN <mattias.wallin@stericsson.com");
-MODULE_DESCRIPTION("AB8500 Core access via PRCMU I2C");
-MODULE_LICENSE("GPL v2");
return 0;
}
+static const struct of_device_id ab8500_sysctrl_match[] = {
+ { .compatible = "stericsson,ab8500-sysctrl", },
+ {}
+};
+
static struct platform_driver ab8500_sysctrl_driver = {
.driver = {
.name = "ab8500-sysctrl",
.owner = THIS_MODULE,
+ .of_match_table = ab8500_sysctrl_match,
},
.probe = ab8500_sysctrl_probe,
.remove = __devexit_p(ab8500_sysctrl_remove),
#include <linux/of_address.h>
#include <linux/mfd/anatop.h>
-u32 anatop_get_bits(struct anatop *adata, u32 addr, int bit_shift,
- int bit_width)
+u32 anatop_read_reg(struct anatop *adata, u32 addr)
{
- u32 val, mask;
-
- if (bit_width == 32)
- mask = ~0;
- else
- mask = (1 << bit_width) - 1;
-
- val = readl(adata->ioreg + addr);
- val = (val >> bit_shift) & mask;
-
- return val;
+ return readl(adata->ioreg + addr);
}
-EXPORT_SYMBOL_GPL(anatop_get_bits);
+EXPORT_SYMBOL_GPL(anatop_read_reg);
-void anatop_set_bits(struct anatop *adata, u32 addr, int bit_shift,
- int bit_width, u32 data)
+void anatop_write_reg(struct anatop *adata, u32 addr, u32 data, u32 mask)
{
- u32 val, mask;
+ u32 val;
- if (bit_width == 32)
- mask = ~0;
- else
- mask = (1 << bit_width) - 1;
+ data &= mask;
spin_lock(&adata->reglock);
- val = readl(adata->ioreg + addr) & ~(mask << bit_shift);
- writel((data << bit_shift) | val, adata->ioreg + addr);
+ val = readl(adata->ioreg + addr);
+ val &= ~mask;
+ val |= data;
+ writel(val, adata->ioreg + addr);
spin_unlock(&adata->reglock);
}
-EXPORT_SYMBOL_GPL(anatop_set_bits);
+EXPORT_SYMBOL_GPL(anatop_write_reg);
static const struct of_device_id of_anatop_match[] = {
{ .compatible = "fsl,imx6q-anatop", },
return 0;
}
+static int asic3_gpio_irq_set_wake(struct irq_data *data, unsigned int on)
+{
+ struct asic3 *asic = irq_data_get_irq_chip_data(data);
+ u32 bank, index;
+ u16 bit;
+
+ bank = asic3_irq_to_bank(asic, data->irq);
+ index = asic3_irq_to_index(asic, data->irq);
+ bit = 1<<index;
+
+ asic3_set_register(asic, bank + ASIC3_GPIO_SLEEP_MASK, bit, !on);
+
+ return 0;
+}
+
static struct irq_chip asic3_gpio_irq_chip = {
.name = "ASIC3-GPIO",
.irq_ack = asic3_mask_gpio_irq,
.irq_mask = asic3_mask_gpio_irq,
.irq_unmask = asic3_unmask_gpio_irq,
.irq_set_type = asic3_gpio_irq_type,
+ .irq_set_wake = asic3_gpio_irq_set_wake,
};
static struct irq_chip asic3_irq_chip = {
{
struct asic3 *asic = container_of(chip, struct asic3, gpio);
- return (offset < ASIC3_NUM_GPIOS) ? asic->irq_base + offset : -ENXIO;
+ return asic->irq_base + offset;
}
static __init int asic3_gpio_probe(struct platform_device *pdev,
asic3_mmc_resources[0].start >>= asic->bus_shift;
asic3_mmc_resources[0].end >>= asic->bus_shift;
- ret = mfd_add_devices(&pdev->dev, pdev->id,
+ if (pdata->clock_rate) {
+ ds1wm_pdata.clock_rate = pdata->clock_rate;
+ ret = mfd_add_devices(&pdev->dev, pdev->id,
&asic3_cell_ds1wm, 1, mem, asic->irq_base);
- if (ret < 0)
- goto out;
+ if (ret < 0)
+ goto out;
+ }
if (mem_sdio && (irq >= 0)) {
ret = mfd_add_devices(&pdev->dev, pdev->id,
asic3_mfd_probe(pdev, pdata, mem);
+ asic3_set_register(asic, ASIC3_OFFSET(EXTCF, SELECT),
+ (ASIC3_EXTCF_CF0_BUF_EN|ASIC3_EXTCF_CF0_PWAIT_EN), 1);
+
dev_info(asic->dev, "ASIC3 Core driver\n");
return 0;
int ret;
struct asic3 *asic = platform_get_drvdata(pdev);
+ asic3_set_register(asic, ASIC3_OFFSET(EXTCF, SELECT),
+ (ASIC3_EXTCF_CF0_BUF_EN|ASIC3_EXTCF_CF0_PWAIT_EN), 0);
+
asic3_mfd_remove(pdev);
ret = asic3_gpio_remove(pdev);
.remove = __devexit_p(cs5535_mfd_remove),
};
-static int __init cs5535_mfd_init(void)
-{
- return pci_register_driver(&cs5535_mfd_driver);
-}
-
-static void __exit cs5535_mfd_exit(void)
-{
- pci_unregister_driver(&cs5535_mfd_driver);
-}
-
-module_init(cs5535_mfd_init);
-module_exit(cs5535_mfd_exit);
+module_pci_driver(cs5535_mfd_driver);
MODULE_AUTHOR("Andres Salomon <dilinger@queued.net>");
MODULE_DESCRIPTION("MFD driver for CS5535/CS5536 southbridge's ISA PCI device");
}
}
+/*
+ * TBAT look-up table is computed from the R90 reg (8 bit register)
+ * reading as below. The battery temperature is in milliCentigrade
+ * TBAT = (1/(t1+1/298) - 273) * 1000 mC
+ * where t1 = (1/B)* ln(( ADCval * 2.5)/(R25*ITBAT*255))
+ * Default values are R25 = 10e3, B = 3380, ITBAT = 50e-6
+ * Example:
+ * R25=10E3, B=3380, ITBAT=50e-6, ADCVAL=62d calculates
+ * TBAT = 20015 mili degrees Centrigrade
+ *
+*/
+static const int32_t tbat_lookup[255] = {
+ 183258, 144221, 124334, 111336, 101826, 94397, 88343, 83257,
+ 78889, 75071, 71688, 68656, 65914, 63414, 61120, 59001,
+ 570366, 55204, 53490, 51881, 50364, 48931, 47574, 46285,
+ 45059, 43889, 42772, 41703, 40678, 39694, 38748, 37838,
+ 36961, 36115, 35297, 34507, 33743, 33002, 32284, 31588,
+ 30911, 30254, 29615, 28994, 28389, 27799, 27225, 26664,
+ 26117, 25584, 25062, 24553, 24054, 23567, 23091, 22624,
+ 22167, 21719, 21281, 20851, 20429, 20015, 19610, 19211,
+ 18820, 18436, 18058, 17688, 17323, 16965, 16612, 16266,
+ 15925, 15589, 15259, 14933, 14613, 14298, 13987, 13681,
+ 13379, 13082, 12788, 12499, 12214, 11933, 11655, 11382,
+ 11112, 10845, 10582, 10322, 10066, 9812, 9562, 9315,
+ 9071, 8830, 8591, 8356, 8123, 7893, 7665, 7440,
+ 7218, 6998, 6780, 6565, 6352, 6141, 5933, 5726,
+ 5522, 5320, 5120, 4922, 4726, 4532, 4340, 4149,
+ 3961, 3774, 3589, 3406, 3225, 3045, 2867, 2690,
+ 2516, 2342, 2170, 2000, 1831, 1664, 1498, 1334,
+ 1171, 1009, 849, 690, 532, 376, 221, 67,
+ -84, -236, -386, -535, -683, -830, -975, -1119,
+ -1263, -1405, -1546, -1686, -1825, -1964, -2101, -2237,
+ -2372, -2506, -2639, -2771, -2902, -3033, -3162, -3291,
+ -3418, -3545, -3671, -3796, -3920, -4044, -4166, -4288,
+ -4409, -4529, -4649, -4767, -4885, -5002, -5119, -5235,
+ -5349, -5464, -5577, -5690, -5802, -5913, -6024, -6134,
+ -6244, -6352, -6461, -6568, -6675, -6781, -6887, -6992,
+ -7096, -7200, -7303, -7406, -7508, -7609, -7710, -7810,
+ -7910, -8009, -8108, -8206, -8304, -8401, -8497, -8593,
+ -8689, -8784, -8878, -8972, -9066, -9159, -9251, -9343,
+ -9435, -9526, -9617, -9707, -9796, -9886, -9975, -10063,
+ -10151, -10238, -10325, -10412, -10839, -10923, -11007, -11090,
+ -11173, -11256, -11338, -11420, -11501, -11583, -11663, -11744,
+ -11823, -11903, -11982
+};
+
+static const u8 chan_mux[DA9052_ADC_VBBAT + 1] = {
+ [DA9052_ADC_VDDOUT] = DA9052_ADC_MAN_MUXSEL_VDDOUT,
+ [DA9052_ADC_ICH] = DA9052_ADC_MAN_MUXSEL_ICH,
+ [DA9052_ADC_TBAT] = DA9052_ADC_MAN_MUXSEL_TBAT,
+ [DA9052_ADC_VBAT] = DA9052_ADC_MAN_MUXSEL_VBAT,
+ [DA9052_ADC_IN4] = DA9052_ADC_MAN_MUXSEL_AD4,
+ [DA9052_ADC_IN5] = DA9052_ADC_MAN_MUXSEL_AD5,
+ [DA9052_ADC_IN6] = DA9052_ADC_MAN_MUXSEL_AD6,
+ [DA9052_ADC_VBBAT] = DA9052_ADC_MAN_MUXSEL_VBBAT
+};
+
+int da9052_adc_manual_read(struct da9052 *da9052, unsigned char channel)
+{
+ int ret;
+ unsigned short calc_data;
+ unsigned short data;
+ unsigned char mux_sel;
+
+ if (channel > DA9052_ADC_VBBAT)
+ return -EINVAL;
+
+ mutex_lock(&da9052->auxadc_lock);
+
+ /* Channel gets activated on enabling the Conversion bit */
+ mux_sel = chan_mux[channel] | DA9052_ADC_MAN_MAN_CONV;
+
+ ret = da9052_reg_write(da9052, DA9052_ADC_MAN_REG, mux_sel);
+ if (ret < 0)
+ goto err;
+
+ /* Wait for an interrupt */
+ if (!wait_for_completion_timeout(&da9052->done,
+ msecs_to_jiffies(500))) {
+ dev_err(da9052->dev,
+ "timeout waiting for ADC conversion interrupt\n");
+ ret = -ETIMEDOUT;
+ goto err;
+ }
+
+ ret = da9052_reg_read(da9052, DA9052_ADC_RES_H_REG);
+ if (ret < 0)
+ goto err;
+
+ calc_data = (unsigned short)ret;
+ data = calc_data << 2;
+
+ ret = da9052_reg_read(da9052, DA9052_ADC_RES_L_REG);
+ if (ret < 0)
+ goto err;
+
+ calc_data = (unsigned short)(ret & DA9052_ADC_RES_LSB);
+ data |= calc_data;
+
+ ret = data;
+
+err:
+ mutex_unlock(&da9052->auxadc_lock);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(da9052_adc_manual_read);
+
+static irqreturn_t da9052_auxadc_irq(int irq, void *irq_data)
+{
+ struct da9052 *da9052 = irq_data;
+
+ complete(&da9052->done);
+
+ return IRQ_HANDLED;
+}
+
+int da9052_adc_read_temp(struct da9052 *da9052)
+{
+ int tbat;
+
+ tbat = da9052_reg_read(da9052, DA9052_TBAT_RES_REG);
+ if (tbat <= 0)
+ return tbat;
+
+ /* ARRAY_SIZE check is not needed since TBAT is a 8-bit register */
+ return tbat_lookup[tbat - 1];
+}
+EXPORT_SYMBOL_GPL(da9052_adc_read_temp);
+
static struct resource da9052_rtc_resource = {
.name = "ALM",
.start = DA9052_IRQ_ALARM,
struct irq_desc *desc;
int ret;
+ mutex_init(&da9052->auxadc_lock);
+ init_completion(&da9052->done);
+
if (pdata && pdata->init != NULL)
pdata->init(da9052);
da9052->irq_base = regmap_irq_chip_get_base(da9052->irq_data);
+ ret = request_threaded_irq(DA9052_IRQ_ADC_EOM, NULL, da9052_auxadc_irq,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ "adc irq", da9052);
+ if (ret != 0)
+ dev_err(da9052->dev, "DA9052 ADC IRQ failed ret=%d\n", ret);
+
ret = mfd_add_devices(da9052->dev, -1, da9052_subdev_info,
ARRAY_SIZE(da9052_subdev_info), NULL, 0);
if (ret)
return 0;
err:
+ free_irq(DA9052_IRQ_ADC_EOM, da9052);
mfd_remove_devices(da9052->dev);
regmap_err:
return ret;
void da9052_device_exit(struct da9052 *da9052)
{
+ free_irq(DA9052_IRQ_ADC_EOM, da9052);
regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data);
mfd_remove_devices(da9052->dev);
}
#include <linux/mfd/da9052/da9052.h>
#include <linux/mfd/da9052/reg.h>
+#ifdef CONFIG_OF
+#include <linux/of.h>
+#include <linux/of_device.h>
+#endif
+
static int da9052_i2c_enable_multiwrite(struct da9052 *da9052)
{
int reg_val, ret;
return 0;
}
+static struct i2c_device_id da9052_i2c_id[] = {
+ {"da9052", DA9052},
+ {"da9053-aa", DA9053_AA},
+ {"da9053-ba", DA9053_BA},
+ {"da9053-bb", DA9053_BB},
+ {}
+};
+
+#ifdef CONFIG_OF
+static const struct of_device_id dialog_dt_ids[] = {
+ { .compatible = "dlg,da9052", .data = &da9052_i2c_id[0] },
+ { .compatible = "dlg,da9053-aa", .data = &da9052_i2c_id[1] },
+ { .compatible = "dlg,da9053-ab", .data = &da9052_i2c_id[2] },
+ { .compatible = "dlg,da9053-bb", .data = &da9052_i2c_id[3] },
+ { /* sentinel */ }
+};
+#endif
+
static int __devinit da9052_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct da9052 *da9052;
int ret;
- da9052 = kzalloc(sizeof(struct da9052), GFP_KERNEL);
+ da9052 = devm_kzalloc(&client->dev, sizeof(struct da9052), GFP_KERNEL);
if (!da9052)
return -ENOMEM;
I2C_FUNC_SMBUS_BYTE_DATA)) {
dev_info(&client->dev, "Error in %s:i2c_check_functionality\n",
__func__);
- ret = -ENODEV;
- goto err;
+ return -ENODEV;
}
da9052->dev = &client->dev;
i2c_set_clientdata(client, da9052);
- da9052->regmap = regmap_init_i2c(client, &da9052_regmap_config);
+ da9052->regmap = devm_regmap_init_i2c(client, &da9052_regmap_config);
if (IS_ERR(da9052->regmap)) {
ret = PTR_ERR(da9052->regmap);
dev_err(&client->dev, "Failed to allocate register map: %d\n",
ret);
- goto err;
+ return ret;
}
ret = da9052_i2c_enable_multiwrite(da9052);
if (ret < 0)
- goto err_regmap;
+ return ret;
+
+#ifdef CONFIG_OF
+ if (!id) {
+ struct device_node *np = client->dev.of_node;
+ const struct of_device_id *deviceid;
+
+ deviceid = of_match_node(dialog_dt_ids, np);
+ id = (const struct i2c_device_id *)deviceid->data;
+ }
+#endif
+
+ if (!id) {
+ ret = -ENODEV;
+ dev_err(&client->dev, "id is null.\n");
+ return ret;
+ }
ret = da9052_device_init(da9052, id->driver_data);
if (ret != 0)
- goto err_regmap;
+ return ret;
return 0;
-
-err_regmap:
- regmap_exit(da9052->regmap);
-err:
- kfree(da9052);
- return ret;
}
static int __devexit da9052_i2c_remove(struct i2c_client *client)
struct da9052 *da9052 = i2c_get_clientdata(client);
da9052_device_exit(da9052);
- regmap_exit(da9052->regmap);
- kfree(da9052);
-
return 0;
}
-static struct i2c_device_id da9052_i2c_id[] = {
- {"da9052", DA9052},
- {"da9053-aa", DA9053_AA},
- {"da9053-ba", DA9053_BA},
- {"da9053-bb", DA9053_BB},
- {}
-};
-
static struct i2c_driver da9052_i2c_driver = {
.probe = da9052_i2c_probe,
.remove = __devexit_p(da9052_i2c_remove),
.driver = {
.name = "da9052",
.owner = THIS_MODULE,
+#ifdef CONFIG_OF
+ .of_match_table = dialog_dt_ids,
+#endif
},
};
{
int ret;
const struct spi_device_id *id = spi_get_device_id(spi);
- struct da9052 *da9052 = kzalloc(sizeof(struct da9052), GFP_KERNEL);
+ struct da9052 *da9052;
+ da9052 = devm_kzalloc(&spi->dev, sizeof(struct da9052), GFP_KERNEL);
if (!da9052)
return -ENOMEM;
da9052_regmap_config.read_flag_mask = 1;
da9052_regmap_config.write_flag_mask = 0;
- da9052->regmap = regmap_init_spi(spi, &da9052_regmap_config);
+ da9052->regmap = devm_regmap_init_spi(spi, &da9052_regmap_config);
if (IS_ERR(da9052->regmap)) {
ret = PTR_ERR(da9052->regmap);
dev_err(&spi->dev, "Failed to allocate register map: %d\n",
ret);
- goto err;
+ return ret;
}
ret = da9052_device_init(da9052, id->driver_data);
if (ret != 0)
- goto err_regmap;
+ return ret;
return 0;
-
-err_regmap:
- regmap_exit(da9052->regmap);
-err:
- kfree(da9052);
- return ret;
}
static int __devexit da9052_spi_remove(struct spi_device *spi)
struct da9052 *da9052 = dev_get_drvdata(&spi->dev);
da9052_device_exit(da9052);
- regmap_exit(da9052->regmap);
- kfree(da9052);
-
return 0;
}
.id_table = da9052_spi_id,
.driver = {
.name = "da9052",
- .bus = &spi_bus_type,
.owner = THIS_MODULE,
},
};
REGULATOR_SUPPLY("v-i2c", "nmk-i2c.1"),
REGULATOR_SUPPLY("v-i2c", "nmk-i2c.2"),
REGULATOR_SUPPLY("v-i2c", "nmk-i2c.3"),
+ REGULATOR_SUPPLY("v-i2c", "nmk-i2c.4"),
/* "v-mmc" changed to "vcore" in the mainline kernel */
REGULATOR_SUPPLY("vcore", "sdi0"),
REGULATOR_SUPPLY("vcore", "sdi1"),
* prcmu_fw_init - arch init call for the Linux PRCMU fw init logic
*
*/
-static int __init db8500_prcmu_probe(struct platform_device *pdev)
+static int __devinit db8500_prcmu_probe(struct platform_device *pdev)
{
- int err = 0;
+ struct device_node *np = pdev->dev.of_node;
+ int irq = 0, err = 0;
if (ux500_is_svp())
return -ENODEV;
/* Clean up the mailbox interrupts after pre-kernel code. */
writel(ALL_MBOX_BITS, PRCM_ARM_IT1_CLR);
- err = request_threaded_irq(IRQ_DB8500_PRCMU1, prcmu_irq_handler,
- prcmu_irq_thread_fn, IRQF_NO_SUSPEND, "prcmu", NULL);
+ if (np)
+ irq = platform_get_irq(pdev, 0);
+
+ if (!np || irq <= 0)
+ irq = IRQ_DB8500_PRCMU1;
+
+ err = request_threaded_irq(irq, prcmu_irq_handler,
+ prcmu_irq_thread_fn, IRQF_NO_SUSPEND, "prcmu", NULL);
if (err < 0) {
pr_err("prcmu: Failed to allocate IRQ_DB8500_PRCMU1.\n");
err = -EBUSY;
if (cpu_is_u8500v20_or_later())
prcmu_config_esram0_deep_sleep(ESRAM0_DEEP_SLEEP_STATE_RET);
- err = mfd_add_devices(&pdev->dev, 0, db8500_prcmu_devs,
- ARRAY_SIZE(db8500_prcmu_devs), NULL,
- 0);
+ if (!np) {
+ err = mfd_add_devices(&pdev->dev, 0, db8500_prcmu_devs,
+ ARRAY_SIZE(db8500_prcmu_devs), NULL, 0);
+ if (err) {
+ pr_err("prcmu: Failed to add subdevices\n");
+ return err;
+ }
+ }
- if (err)
- pr_err("prcmu: Failed to add subdevices\n");
- else
- pr_info("DB8500 PRCMU initialized\n");
+ pr_info("DB8500 PRCMU initialized\n");
no_irq_return:
return err;
.name = "db8500-prcmu",
.owner = THIS_MODULE,
},
+ .probe = db8500_prcmu_probe,
};
static int __init db8500_prcmu_init(void)
{
- return platform_driver_probe(&db8500_prcmu_driver, db8500_prcmu_probe);
+ return platform_driver_register(&db8500_prcmu_driver);
}
arch_initcall(db8500_prcmu_init);
return -ENXIO;
}
- msic = kzalloc(sizeof(*msic), GFP_KERNEL);
+ msic = devm_kzalloc(&pdev->dev, sizeof(*msic), GFP_KERNEL);
if (!msic)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "failed to get SRAM iomem resource\n");
- ret = -ENODEV;
- goto fail_free_msic;
+ return -ENODEV;
}
- res = request_mem_region(res->start, resource_size(res), pdev->name);
- if (!res) {
- ret = -EBUSY;
- goto fail_free_msic;
- }
-
- msic->irq_base = ioremap_nocache(res->start, resource_size(res));
+ msic->irq_base = devm_request_and_ioremap(&pdev->dev, res);
if (!msic->irq_base) {
dev_err(&pdev->dev, "failed to map SRAM memory\n");
- ret = -ENOMEM;
- goto fail_release_region;
+ return -ENOMEM;
}
platform_set_drvdata(pdev, msic);
ret = intel_msic_init_devices(msic);
if (ret) {
dev_err(&pdev->dev, "failed to initialize MSIC devices\n");
- goto fail_unmap_mem;
+ return ret;
}
dev_info(&pdev->dev, "Intel MSIC version %c%d (vendor %#x)\n",
msic->vendor);
return 0;
-
-fail_unmap_mem:
- iounmap(msic->irq_base);
-fail_release_region:
- release_mem_region(res->start, resource_size(res));
-fail_free_msic:
- kfree(msic);
-
- return ret;
}
static int __devexit intel_msic_remove(struct platform_device *pdev)
{
struct intel_msic *msic = platform_get_drvdata(pdev);
- struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
intel_msic_remove_devices(msic);
platform_set_drvdata(pdev, NULL);
- iounmap(msic->irq_base);
- release_mem_region(res->start, resource_size(res));
- kfree(msic);
return 0;
}
.remove = __devexit_p(cmodio_pci_remove),
};
-/*
- * Module Init / Exit
- */
-
-static int __init cmodio_init(void)
-{
- return pci_register_driver(&cmodio_pci_driver);
-}
-
-static void __exit cmodio_exit(void)
-{
- pci_unregister_driver(&cmodio_pci_driver);
-}
+module_pci_driver(cmodio_pci_driver);
MODULE_AUTHOR("Ira W. Snyder <iws@ovro.caltech.edu>");
MODULE_DESCRIPTION("Janz CMOD-IO PCI MODULbus Carrier Board Driver");
MODULE_LICENSE("GPL");
-
-module_init(cmodio_init);
-module_exit(cmodio_exit);
--- /dev/null
+/*
+ * lm3533-core.c -- LM3533 Core
+ *
+ * Copyright (C) 2011-2012 Texas Instruments
+ *
+ * Author: Johan Hovold <jhovold@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/mfd/core.h>
+#include <linux/regmap.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+#include <linux/uaccess.h>
+
+#include <linux/mfd/lm3533.h>
+
+
+#define LM3533_BOOST_OVP_MASK 0x06
+#define LM3533_BOOST_OVP_SHIFT 1
+
+#define LM3533_BOOST_FREQ_MASK 0x01
+#define LM3533_BOOST_FREQ_SHIFT 0
+
+#define LM3533_BL_ID_MASK 1
+#define LM3533_LED_ID_MASK 3
+#define LM3533_BL_ID_MAX 1
+#define LM3533_LED_ID_MAX 3
+
+#define LM3533_HVLED_ID_MAX 2
+#define LM3533_LVLED_ID_MAX 5
+
+#define LM3533_REG_OUTPUT_CONF1 0x10
+#define LM3533_REG_OUTPUT_CONF2 0x11
+#define LM3533_REG_BOOST_PWM 0x2c
+
+#define LM3533_REG_MAX 0xb2
+
+
+static struct mfd_cell lm3533_als_devs[] = {
+ {
+ .name = "lm3533-als",
+ .id = -1,
+ },
+};
+
+static struct mfd_cell lm3533_bl_devs[] = {
+ {
+ .name = "lm3533-backlight",
+ .id = 0,
+ },
+ {
+ .name = "lm3533-backlight",
+ .id = 1,
+ },
+};
+
+static struct mfd_cell lm3533_led_devs[] = {
+ {
+ .name = "lm3533-leds",
+ .id = 0,
+ },
+ {
+ .name = "lm3533-leds",
+ .id = 1,
+ },
+ {
+ .name = "lm3533-leds",
+ .id = 2,
+ },
+ {
+ .name = "lm3533-leds",
+ .id = 3,
+ },
+};
+
+int lm3533_read(struct lm3533 *lm3533, u8 reg, u8 *val)
+{
+ int tmp;
+ int ret;
+
+ ret = regmap_read(lm3533->regmap, reg, &tmp);
+ if (ret < 0) {
+ dev_err(lm3533->dev, "failed to read register %02x: %d\n",
+ reg, ret);
+ return ret;
+ }
+
+ *val = tmp;
+
+ dev_dbg(lm3533->dev, "read [%02x]: %02x\n", reg, *val);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(lm3533_read);
+
+int lm3533_write(struct lm3533 *lm3533, u8 reg, u8 val)
+{
+ int ret;
+
+ dev_dbg(lm3533->dev, "write [%02x]: %02x\n", reg, val);
+
+ ret = regmap_write(lm3533->regmap, reg, val);
+ if (ret < 0) {
+ dev_err(lm3533->dev, "failed to write register %02x: %d\n",
+ reg, ret);
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(lm3533_write);
+
+int lm3533_update(struct lm3533 *lm3533, u8 reg, u8 val, u8 mask)
+{
+ int ret;
+
+ dev_dbg(lm3533->dev, "update [%02x]: %02x/%02x\n", reg, val, mask);
+
+ ret = regmap_update_bits(lm3533->regmap, reg, mask, val);
+ if (ret < 0) {
+ dev_err(lm3533->dev, "failed to update register %02x: %d\n",
+ reg, ret);
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(lm3533_update);
+
+static int lm3533_set_boost_freq(struct lm3533 *lm3533,
+ enum lm3533_boost_freq freq)
+{
+ int ret;
+
+ ret = lm3533_update(lm3533, LM3533_REG_BOOST_PWM,
+ freq << LM3533_BOOST_FREQ_SHIFT,
+ LM3533_BOOST_FREQ_MASK);
+ if (ret)
+ dev_err(lm3533->dev, "failed to set boost frequency\n");
+
+ return ret;
+}
+
+
+static int lm3533_set_boost_ovp(struct lm3533 *lm3533,
+ enum lm3533_boost_ovp ovp)
+{
+ int ret;
+
+ ret = lm3533_update(lm3533, LM3533_REG_BOOST_PWM,
+ ovp << LM3533_BOOST_OVP_SHIFT,
+ LM3533_BOOST_OVP_MASK);
+ if (ret)
+ dev_err(lm3533->dev, "failed to set boost ovp\n");
+
+ return ret;
+}
+
+/*
+ * HVLED output config -- output hvled controlled by backlight bl
+ */
+static int lm3533_set_hvled_config(struct lm3533 *lm3533, u8 hvled, u8 bl)
+{
+ u8 val;
+ u8 mask;
+ int shift;
+ int ret;
+
+ if (hvled == 0 || hvled > LM3533_HVLED_ID_MAX)
+ return -EINVAL;
+
+ if (bl > LM3533_BL_ID_MAX)
+ return -EINVAL;
+
+ shift = hvled - 1;
+ mask = LM3533_BL_ID_MASK << shift;
+ val = bl << shift;
+
+ ret = lm3533_update(lm3533, LM3533_REG_OUTPUT_CONF1, val, mask);
+ if (ret)
+ dev_err(lm3533->dev, "failed to set hvled config\n");
+
+ return ret;
+}
+
+/*
+ * LVLED output config -- output lvled controlled by LED led
+ */
+static int lm3533_set_lvled_config(struct lm3533 *lm3533, u8 lvled, u8 led)
+{
+ u8 reg;
+ u8 val;
+ u8 mask;
+ int shift;
+ int ret;
+
+ if (lvled == 0 || lvled > LM3533_LVLED_ID_MAX)
+ return -EINVAL;
+
+ if (led > LM3533_LED_ID_MAX)
+ return -EINVAL;
+
+ if (lvled < 4) {
+ reg = LM3533_REG_OUTPUT_CONF1;
+ shift = 2 * lvled;
+ } else {
+ reg = LM3533_REG_OUTPUT_CONF2;
+ shift = 2 * (lvled - 4);
+ }
+
+ mask = LM3533_LED_ID_MASK << shift;
+ val = led << shift;
+
+ ret = lm3533_update(lm3533, reg, val, mask);
+ if (ret)
+ dev_err(lm3533->dev, "failed to set lvled config\n");
+
+ return ret;
+}
+
+static void lm3533_enable(struct lm3533 *lm3533)
+{
+ if (gpio_is_valid(lm3533->gpio_hwen))
+ gpio_set_value(lm3533->gpio_hwen, 1);
+}
+
+static void lm3533_disable(struct lm3533 *lm3533)
+{
+ if (gpio_is_valid(lm3533->gpio_hwen))
+ gpio_set_value(lm3533->gpio_hwen, 0);
+}
+
+enum lm3533_attribute_type {
+ LM3533_ATTR_TYPE_BACKLIGHT,
+ LM3533_ATTR_TYPE_LED,
+};
+
+struct lm3533_device_attribute {
+ struct device_attribute dev_attr;
+ enum lm3533_attribute_type type;
+ union {
+ struct {
+ u8 id;
+ } output;
+ } u;
+};
+
+#define to_lm3533_dev_attr(_attr) \
+ container_of(_attr, struct lm3533_device_attribute, dev_attr)
+
+static ssize_t show_output(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct lm3533 *lm3533 = dev_get_drvdata(dev);
+ struct lm3533_device_attribute *lattr = to_lm3533_dev_attr(attr);
+ int id = lattr->u.output.id;
+ u8 reg;
+ u8 val;
+ u8 mask;
+ int shift;
+ int ret;
+
+ if (lattr->type == LM3533_ATTR_TYPE_BACKLIGHT) {
+ reg = LM3533_REG_OUTPUT_CONF1;
+ shift = id - 1;
+ mask = LM3533_BL_ID_MASK << shift;
+ } else {
+ if (id < 4) {
+ reg = LM3533_REG_OUTPUT_CONF1;
+ shift = 2 * id;
+ } else {
+ reg = LM3533_REG_OUTPUT_CONF2;
+ shift = 2 * (id - 4);
+ }
+ mask = LM3533_LED_ID_MASK << shift;
+ }
+
+ ret = lm3533_read(lm3533, reg, &val);
+ if (ret)
+ return ret;
+
+ val = (val & mask) >> shift;
+
+ return scnprintf(buf, PAGE_SIZE, "%u\n", val);
+}
+
+static ssize_t store_output(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct lm3533 *lm3533 = dev_get_drvdata(dev);
+ struct lm3533_device_attribute *lattr = to_lm3533_dev_attr(attr);
+ int id = lattr->u.output.id;
+ u8 val;
+ int ret;
+
+ if (kstrtou8(buf, 0, &val))
+ return -EINVAL;
+
+ if (lattr->type == LM3533_ATTR_TYPE_BACKLIGHT)
+ ret = lm3533_set_hvled_config(lm3533, id, val);
+ else
+ ret = lm3533_set_lvled_config(lm3533, id, val);
+
+ if (ret)
+ return ret;
+
+ return len;
+}
+
+#define LM3533_OUTPUT_ATTR(_name, _mode, _show, _store, _type, _id) \
+ struct lm3533_device_attribute lm3533_dev_attr_##_name = \
+ { .dev_attr = __ATTR(_name, _mode, _show, _store), \
+ .type = _type, \
+ .u.output = { .id = _id }, }
+
+#define LM3533_OUTPUT_ATTR_RW(_name, _type, _id) \
+ LM3533_OUTPUT_ATTR(output_##_name, S_IRUGO | S_IWUSR, \
+ show_output, store_output, _type, _id)
+
+#define LM3533_OUTPUT_HVLED_ATTR_RW(_nr) \
+ LM3533_OUTPUT_ATTR_RW(hvled##_nr, LM3533_ATTR_TYPE_BACKLIGHT, _nr)
+#define LM3533_OUTPUT_LVLED_ATTR_RW(_nr) \
+ LM3533_OUTPUT_ATTR_RW(lvled##_nr, LM3533_ATTR_TYPE_LED, _nr)
+/*
+ * Output config:
+ *
+ * output_hvled<nr> 0-1
+ * output_lvled<nr> 0-3
+ */
+static LM3533_OUTPUT_HVLED_ATTR_RW(1);
+static LM3533_OUTPUT_HVLED_ATTR_RW(2);
+static LM3533_OUTPUT_LVLED_ATTR_RW(1);
+static LM3533_OUTPUT_LVLED_ATTR_RW(2);
+static LM3533_OUTPUT_LVLED_ATTR_RW(3);
+static LM3533_OUTPUT_LVLED_ATTR_RW(4);
+static LM3533_OUTPUT_LVLED_ATTR_RW(5);
+
+static struct attribute *lm3533_attributes[] = {
+ &lm3533_dev_attr_output_hvled1.dev_attr.attr,
+ &lm3533_dev_attr_output_hvled2.dev_attr.attr,
+ &lm3533_dev_attr_output_lvled1.dev_attr.attr,
+ &lm3533_dev_attr_output_lvled2.dev_attr.attr,
+ &lm3533_dev_attr_output_lvled3.dev_attr.attr,
+ &lm3533_dev_attr_output_lvled4.dev_attr.attr,
+ &lm3533_dev_attr_output_lvled5.dev_attr.attr,
+ NULL,
+};
+
+#define to_dev_attr(_attr) \
+ container_of(_attr, struct device_attribute, attr)
+
+static umode_t lm3533_attr_is_visible(struct kobject *kobj,
+ struct attribute *attr, int n)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct lm3533 *lm3533 = dev_get_drvdata(dev);
+ struct device_attribute *dattr = to_dev_attr(attr);
+ struct lm3533_device_attribute *lattr = to_lm3533_dev_attr(dattr);
+ enum lm3533_attribute_type type = lattr->type;
+ umode_t mode = attr->mode;
+
+ if (!lm3533->have_backlights && type == LM3533_ATTR_TYPE_BACKLIGHT)
+ mode = 0;
+ else if (!lm3533->have_leds && type == LM3533_ATTR_TYPE_LED)
+ mode = 0;
+
+ return mode;
+};
+
+static struct attribute_group lm3533_attribute_group = {
+ .is_visible = lm3533_attr_is_visible,
+ .attrs = lm3533_attributes
+};
+
+static int __devinit lm3533_device_als_init(struct lm3533 *lm3533)
+{
+ struct lm3533_platform_data *pdata = lm3533->dev->platform_data;
+ int ret;
+
+ if (!pdata->als)
+ return 0;
+
+ lm3533_als_devs[0].platform_data = pdata->als;
+ lm3533_als_devs[0].pdata_size = sizeof(*pdata->als);
+
+ ret = mfd_add_devices(lm3533->dev, 0, lm3533_als_devs, 1, NULL, 0);
+ if (ret) {
+ dev_err(lm3533->dev, "failed to add ALS device\n");
+ return ret;
+ }
+
+ lm3533->have_als = 1;
+
+ return 0;
+}
+
+static int __devinit lm3533_device_bl_init(struct lm3533 *lm3533)
+{
+ struct lm3533_platform_data *pdata = lm3533->dev->platform_data;
+ int i;
+ int ret;
+
+ if (!pdata->backlights || pdata->num_backlights == 0)
+ return 0;
+
+ if (pdata->num_backlights > ARRAY_SIZE(lm3533_bl_devs))
+ pdata->num_backlights = ARRAY_SIZE(lm3533_bl_devs);
+
+ for (i = 0; i < pdata->num_backlights; ++i) {
+ lm3533_bl_devs[i].platform_data = &pdata->backlights[i];
+ lm3533_bl_devs[i].pdata_size = sizeof(pdata->backlights[i]);
+ }
+
+ ret = mfd_add_devices(lm3533->dev, 0, lm3533_bl_devs,
+ pdata->num_backlights, NULL, 0);
+ if (ret) {
+ dev_err(lm3533->dev, "failed to add backlight devices\n");
+ return ret;
+ }
+
+ lm3533->have_backlights = 1;
+
+ return 0;
+}
+
+static int __devinit lm3533_device_led_init(struct lm3533 *lm3533)
+{
+ struct lm3533_platform_data *pdata = lm3533->dev->platform_data;
+ int i;
+ int ret;
+
+ if (!pdata->leds || pdata->num_leds == 0)
+ return 0;
+
+ if (pdata->num_leds > ARRAY_SIZE(lm3533_led_devs))
+ pdata->num_leds = ARRAY_SIZE(lm3533_led_devs);
+
+ for (i = 0; i < pdata->num_leds; ++i) {
+ lm3533_led_devs[i].platform_data = &pdata->leds[i];
+ lm3533_led_devs[i].pdata_size = sizeof(pdata->leds[i]);
+ }
+
+ ret = mfd_add_devices(lm3533->dev, 0, lm3533_led_devs,
+ pdata->num_leds, NULL, 0);
+ if (ret) {
+ dev_err(lm3533->dev, "failed to add LED devices\n");
+ return ret;
+ }
+
+ lm3533->have_leds = 1;
+
+ return 0;
+}
+
+static int __devinit lm3533_device_setup(struct lm3533 *lm3533,
+ struct lm3533_platform_data *pdata)
+{
+ int ret;
+
+ ret = lm3533_set_boost_freq(lm3533, pdata->boost_freq);
+ if (ret)
+ return ret;
+
+ ret = lm3533_set_boost_ovp(lm3533, pdata->boost_ovp);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int __devinit lm3533_device_init(struct lm3533 *lm3533)
+{
+ struct lm3533_platform_data *pdata = lm3533->dev->platform_data;
+ int ret;
+
+ dev_dbg(lm3533->dev, "%s\n", __func__);
+
+ if (!pdata) {
+ dev_err(lm3533->dev, "no platform data\n");
+ return -EINVAL;
+ }
+
+ lm3533->gpio_hwen = pdata->gpio_hwen;
+
+ dev_set_drvdata(lm3533->dev, lm3533);
+
+ if (gpio_is_valid(lm3533->gpio_hwen)) {
+ ret = gpio_request_one(lm3533->gpio_hwen, GPIOF_OUT_INIT_LOW,
+ "lm3533-hwen");
+ if (ret < 0) {
+ dev_err(lm3533->dev,
+ "failed to request HWEN GPIO %d\n",
+ lm3533->gpio_hwen);
+ return ret;
+ }
+ }
+
+ lm3533_enable(lm3533);
+
+ ret = lm3533_device_setup(lm3533, pdata);
+ if (ret)
+ goto err_disable;
+
+ lm3533_device_als_init(lm3533);
+ lm3533_device_bl_init(lm3533);
+ lm3533_device_led_init(lm3533);
+
+ ret = sysfs_create_group(&lm3533->dev->kobj, &lm3533_attribute_group);
+ if (ret < 0) {
+ dev_err(lm3533->dev, "failed to create sysfs attributes\n");
+ goto err_unregister;
+ }
+
+ return 0;
+
+err_unregister:
+ mfd_remove_devices(lm3533->dev);
+err_disable:
+ lm3533_disable(lm3533);
+ if (gpio_is_valid(lm3533->gpio_hwen))
+ gpio_free(lm3533->gpio_hwen);
+
+ return ret;
+}
+
+static void __devexit lm3533_device_exit(struct lm3533 *lm3533)
+{
+ dev_dbg(lm3533->dev, "%s\n", __func__);
+
+ sysfs_remove_group(&lm3533->dev->kobj, &lm3533_attribute_group);
+
+ mfd_remove_devices(lm3533->dev);
+ lm3533_disable(lm3533);
+ if (gpio_is_valid(lm3533->gpio_hwen))
+ gpio_free(lm3533->gpio_hwen);
+}
+
+static bool lm3533_readable_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case 0x10 ... 0x2c:
+ case 0x30 ... 0x38:
+ case 0x40 ... 0x45:
+ case 0x50 ... 0x57:
+ case 0x60 ... 0x6e:
+ case 0x70 ... 0x75:
+ case 0x80 ... 0x85:
+ case 0x90 ... 0x95:
+ case 0xa0 ... 0xa5:
+ case 0xb0 ... 0xb2:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool lm3533_volatile_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case 0x34 ... 0x36: /* zone */
+ case 0x37 ... 0x38: /* adc */
+ case 0xb0 ... 0xb1: /* fault */
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool lm3533_precious_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case 0x34: /* zone */
+ return true;
+ default:
+ return false;
+ }
+}
+
+static struct regmap_config regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = LM3533_REG_MAX,
+ .readable_reg = lm3533_readable_register,
+ .volatile_reg = lm3533_volatile_register,
+ .precious_reg = lm3533_precious_register,
+};
+
+static int __devinit lm3533_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct lm3533 *lm3533;
+ int ret;
+
+ dev_dbg(&i2c->dev, "%s\n", __func__);
+
+ lm3533 = devm_kzalloc(&i2c->dev, sizeof(*lm3533), GFP_KERNEL);
+ if (!lm3533)
+ return -ENOMEM;
+
+ i2c_set_clientdata(i2c, lm3533);
+
+ lm3533->regmap = devm_regmap_init_i2c(i2c, ®map_config);
+ if (IS_ERR(lm3533->regmap))
+ return PTR_ERR(lm3533->regmap);
+
+ lm3533->dev = &i2c->dev;
+ lm3533->irq = i2c->irq;
+
+ ret = lm3533_device_init(lm3533);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int __devexit lm3533_i2c_remove(struct i2c_client *i2c)
+{
+ struct lm3533 *lm3533 = i2c_get_clientdata(i2c);
+
+ dev_dbg(&i2c->dev, "%s\n", __func__);
+
+ lm3533_device_exit(lm3533);
+
+ return 0;
+}
+
+static const struct i2c_device_id lm3533_i2c_ids[] = {
+ { "lm3533", 0 },
+ { },
+};
+MODULE_DEVICE_TABLE(i2c, lm3533_i2c_ids);
+
+static struct i2c_driver lm3533_i2c_driver = {
+ .driver = {
+ .name = "lm3533",
+ .owner = THIS_MODULE,
+ },
+ .id_table = lm3533_i2c_ids,
+ .probe = lm3533_i2c_probe,
+ .remove = __devexit_p(lm3533_i2c_remove),
+};
+
+static int __init lm3533_i2c_init(void)
+{
+ return i2c_add_driver(&lm3533_i2c_driver);
+}
+subsys_initcall(lm3533_i2c_init);
+
+static void __exit lm3533_i2c_exit(void)
+{
+ i2c_del_driver(&lm3533_i2c_driver);
+}
+module_exit(lm3533_i2c_exit);
+
+MODULE_AUTHOR("Johan Hovold <jhovold@gmail.com>");
+MODULE_DESCRIPTION("LM3533 Core");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * lm3533-ctrlbank.c -- LM3533 Generic Control Bank interface
+ *
+ * Copyright (C) 2011-2012 Texas Instruments
+ *
+ * Author: Johan Hovold <jhovold@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/module.h>
+
+#include <linux/mfd/lm3533.h>
+
+
+#define LM3533_MAX_CURRENT_MIN 5000
+#define LM3533_MAX_CURRENT_MAX 29800
+#define LM3533_MAX_CURRENT_STEP 800
+
+#define LM3533_BRIGHTNESS_MAX 255
+#define LM3533_PWM_MAX 0x3f
+
+#define LM3533_REG_PWM_BASE 0x14
+#define LM3533_REG_MAX_CURRENT_BASE 0x1f
+#define LM3533_REG_CTRLBANK_ENABLE 0x27
+#define LM3533_REG_BRIGHTNESS_BASE 0x40
+
+
+static inline u8 lm3533_ctrlbank_get_reg(struct lm3533_ctrlbank *cb, u8 base)
+{
+ return base + cb->id;
+}
+
+int lm3533_ctrlbank_enable(struct lm3533_ctrlbank *cb)
+{
+ u8 mask;
+ int ret;
+
+ dev_dbg(cb->dev, "%s - %d\n", __func__, cb->id);
+
+ mask = 1 << cb->id;
+ ret = lm3533_update(cb->lm3533, LM3533_REG_CTRLBANK_ENABLE,
+ mask, mask);
+ if (ret)
+ dev_err(cb->dev, "failed to enable ctrlbank %d\n", cb->id);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(lm3533_ctrlbank_enable);
+
+int lm3533_ctrlbank_disable(struct lm3533_ctrlbank *cb)
+{
+ u8 mask;
+ int ret;
+
+ dev_dbg(cb->dev, "%s - %d\n", __func__, cb->id);
+
+ mask = 1 << cb->id;
+ ret = lm3533_update(cb->lm3533, LM3533_REG_CTRLBANK_ENABLE, 0, mask);
+ if (ret)
+ dev_err(cb->dev, "failed to disable ctrlbank %d\n", cb->id);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(lm3533_ctrlbank_disable);
+
+/*
+ * Full-scale current.
+ *
+ * imax 5000 - 29800 uA (800 uA step)
+ */
+int lm3533_ctrlbank_set_max_current(struct lm3533_ctrlbank *cb, u16 imax)
+{
+ u8 reg;
+ u8 val;
+ int ret;
+
+ if (imax < LM3533_MAX_CURRENT_MIN || imax > LM3533_MAX_CURRENT_MAX)
+ return -EINVAL;
+
+ val = (imax - LM3533_MAX_CURRENT_MIN) / LM3533_MAX_CURRENT_STEP;
+
+ reg = lm3533_ctrlbank_get_reg(cb, LM3533_REG_MAX_CURRENT_BASE);
+ ret = lm3533_write(cb->lm3533, reg, val);
+ if (ret)
+ dev_err(cb->dev, "failed to set max current\n");
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(lm3533_ctrlbank_set_max_current);
+
+#define lm3533_ctrlbank_set(_name, _NAME) \
+int lm3533_ctrlbank_set_##_name(struct lm3533_ctrlbank *cb, u8 val) \
+{ \
+ u8 reg; \
+ int ret; \
+ \
+ if (val > LM3533_##_NAME##_MAX) \
+ return -EINVAL; \
+ \
+ reg = lm3533_ctrlbank_get_reg(cb, LM3533_REG_##_NAME##_BASE); \
+ ret = lm3533_write(cb->lm3533, reg, val); \
+ if (ret) \
+ dev_err(cb->dev, "failed to set " #_name "\n"); \
+ \
+ return ret; \
+} \
+EXPORT_SYMBOL_GPL(lm3533_ctrlbank_set_##_name);
+
+#define lm3533_ctrlbank_get(_name, _NAME) \
+int lm3533_ctrlbank_get_##_name(struct lm3533_ctrlbank *cb, u8 *val) \
+{ \
+ u8 reg; \
+ int ret; \
+ \
+ reg = lm3533_ctrlbank_get_reg(cb, LM3533_REG_##_NAME##_BASE); \
+ ret = lm3533_read(cb->lm3533, reg, val); \
+ if (ret) \
+ dev_err(cb->dev, "failed to get " #_name "\n"); \
+ \
+ return ret; \
+} \
+EXPORT_SYMBOL_GPL(lm3533_ctrlbank_get_##_name);
+
+lm3533_ctrlbank_set(brightness, BRIGHTNESS);
+lm3533_ctrlbank_get(brightness, BRIGHTNESS);
+
+/*
+ * PWM-input control mask:
+ *
+ * bit 5 - PWM-input enabled in Zone 4
+ * bit 4 - PWM-input enabled in Zone 3
+ * bit 3 - PWM-input enabled in Zone 2
+ * bit 2 - PWM-input enabled in Zone 1
+ * bit 1 - PWM-input enabled in Zone 0
+ * bit 0 - PWM-input enabled
+ */
+lm3533_ctrlbank_set(pwm, PWM);
+lm3533_ctrlbank_get(pwm, PWM);
+
+
+MODULE_AUTHOR("Johan Hovold <jhovold@gmail.com>");
+MODULE_DESCRIPTION("LM3533 Control Bank interface");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * lpc_ich.c - LPC interface for Intel ICH
+ *
+ * LPC bridge function of the Intel ICH contains many other
+ * functional units, such as Interrupt controllers, Timers,
+ * Power Management, System Management, GPIO, RTC, and LPC
+ * Configuration Registers.
+ *
+ * This driver is derived from lpc_sch.
+
+ * Copyright (c) 2011 Extreme Engineering Solution, Inc.
+ * Author: Aaron Sierra <asierra@xes-inc.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License 2 as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * This driver supports the following I/O Controller hubs:
+ * (See the intel documentation on http://developer.intel.com.)
+ * document number 290655-003, 290677-014: 82801AA (ICH), 82801AB (ICHO)
+ * document number 290687-002, 298242-027: 82801BA (ICH2)
+ * document number 290733-003, 290739-013: 82801CA (ICH3-S)
+ * document number 290716-001, 290718-007: 82801CAM (ICH3-M)
+ * document number 290744-001, 290745-025: 82801DB (ICH4)
+ * document number 252337-001, 252663-008: 82801DBM (ICH4-M)
+ * document number 273599-001, 273645-002: 82801E (C-ICH)
+ * document number 252516-001, 252517-028: 82801EB (ICH5), 82801ER (ICH5R)
+ * document number 300641-004, 300884-013: 6300ESB
+ * document number 301473-002, 301474-026: 82801F (ICH6)
+ * document number 313082-001, 313075-006: 631xESB, 632xESB
+ * document number 307013-003, 307014-024: 82801G (ICH7)
+ * document number 322896-001, 322897-001: NM10
+ * document number 313056-003, 313057-017: 82801H (ICH8)
+ * document number 316972-004, 316973-012: 82801I (ICH9)
+ * document number 319973-002, 319974-002: 82801J (ICH10)
+ * document number 322169-001, 322170-003: 5 Series, 3400 Series (PCH)
+ * document number 320066-003, 320257-008: EP80597 (IICH)
+ * document number 324645-001, 324646-001: Cougar Point (CPT)
+ * document number TBD : Patsburg (PBG)
+ * document number TBD : DH89xxCC
+ * document number TBD : Panther Point
+ * document number TBD : Lynx Point
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/acpi.h>
+#include <linux/pci.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/lpc_ich.h>
+
+#define ACPIBASE 0x40
+#define ACPIBASE_GPE_OFF 0x28
+#define ACPIBASE_GPE_END 0x2f
+#define ACPIBASE_SMI_OFF 0x30
+#define ACPIBASE_SMI_END 0x33
+#define ACPIBASE_TCO_OFF 0x60
+#define ACPIBASE_TCO_END 0x7f
+#define ACPICTRL 0x44
+
+#define ACPIBASE_GCS_OFF 0x3410
+#define ACPIBASE_GCS_END 0x3414
+
+#define GPIOBASE 0x48
+#define GPIOCTRL 0x4C
+
+#define RCBABASE 0xf0
+
+#define wdt_io_res(i) wdt_res(0, i)
+#define wdt_mem_res(i) wdt_res(ICH_RES_MEM_OFF, i)
+#define wdt_res(b, i) (&wdt_ich_res[(b) + (i)])
+
+static int lpc_ich_acpi_save = -1;
+static int lpc_ich_gpio_save = -1;
+
+static struct resource wdt_ich_res[] = {
+ /* ACPI - TCO */
+ {
+ .flags = IORESOURCE_IO,
+ },
+ /* ACPI - SMI */
+ {
+ .flags = IORESOURCE_IO,
+ },
+ /* GCS */
+ {
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct resource gpio_ich_res[] = {
+ /* GPIO */
+ {
+ .flags = IORESOURCE_IO,
+ },
+ /* ACPI - GPE0 */
+ {
+ .flags = IORESOURCE_IO,
+ },
+};
+
+enum lpc_cells {
+ LPC_WDT = 0,
+ LPC_GPIO,
+};
+
+static struct mfd_cell lpc_ich_cells[] = {
+ [LPC_WDT] = {
+ .name = "iTCO_wdt",
+ .num_resources = ARRAY_SIZE(wdt_ich_res),
+ .resources = wdt_ich_res,
+ .ignore_resource_conflicts = true,
+ },
+ [LPC_GPIO] = {
+ .name = "gpio_ich",
+ .num_resources = ARRAY_SIZE(gpio_ich_res),
+ .resources = gpio_ich_res,
+ .ignore_resource_conflicts = true,
+ },
+};
+
+/* chipset related info */
+enum lpc_chipsets {
+ LPC_ICH = 0, /* ICH */
+ LPC_ICH0, /* ICH0 */
+ LPC_ICH2, /* ICH2 */
+ LPC_ICH2M, /* ICH2-M */
+ LPC_ICH3, /* ICH3-S */
+ LPC_ICH3M, /* ICH3-M */
+ LPC_ICH4, /* ICH4 */
+ LPC_ICH4M, /* ICH4-M */
+ LPC_CICH, /* C-ICH */
+ LPC_ICH5, /* ICH5 & ICH5R */
+ LPC_6300ESB, /* 6300ESB */
+ LPC_ICH6, /* ICH6 & ICH6R */
+ LPC_ICH6M, /* ICH6-M */
+ LPC_ICH6W, /* ICH6W & ICH6RW */
+ LPC_631XESB, /* 631xESB/632xESB */
+ LPC_ICH7, /* ICH7 & ICH7R */
+ LPC_ICH7DH, /* ICH7DH */
+ LPC_ICH7M, /* ICH7-M & ICH7-U */
+ LPC_ICH7MDH, /* ICH7-M DH */
+ LPC_NM10, /* NM10 */
+ LPC_ICH8, /* ICH8 & ICH8R */
+ LPC_ICH8DH, /* ICH8DH */
+ LPC_ICH8DO, /* ICH8DO */
+ LPC_ICH8M, /* ICH8M */
+ LPC_ICH8ME, /* ICH8M-E */
+ LPC_ICH9, /* ICH9 */
+ LPC_ICH9R, /* ICH9R */
+ LPC_ICH9DH, /* ICH9DH */
+ LPC_ICH9DO, /* ICH9DO */
+ LPC_ICH9M, /* ICH9M */
+ LPC_ICH9ME, /* ICH9M-E */
+ LPC_ICH10, /* ICH10 */
+ LPC_ICH10R, /* ICH10R */
+ LPC_ICH10D, /* ICH10D */
+ LPC_ICH10DO, /* ICH10DO */
+ LPC_PCH, /* PCH Desktop Full Featured */
+ LPC_PCHM, /* PCH Mobile Full Featured */
+ LPC_P55, /* P55 */
+ LPC_PM55, /* PM55 */
+ LPC_H55, /* H55 */
+ LPC_QM57, /* QM57 */
+ LPC_H57, /* H57 */
+ LPC_HM55, /* HM55 */
+ LPC_Q57, /* Q57 */
+ LPC_HM57, /* HM57 */
+ LPC_PCHMSFF, /* PCH Mobile SFF Full Featured */
+ LPC_QS57, /* QS57 */
+ LPC_3400, /* 3400 */
+ LPC_3420, /* 3420 */
+ LPC_3450, /* 3450 */
+ LPC_EP80579, /* EP80579 */
+ LPC_CPT, /* Cougar Point */
+ LPC_CPTD, /* Cougar Point Desktop */
+ LPC_CPTM, /* Cougar Point Mobile */
+ LPC_PBG, /* Patsburg */
+ LPC_DH89XXCC, /* DH89xxCC */
+ LPC_PPT, /* Panther Point */
+ LPC_LPT, /* Lynx Point */
+};
+
+struct lpc_ich_info lpc_chipset_info[] __devinitdata = {
+ [LPC_ICH] = {
+ .name = "ICH",
+ .iTCO_version = 1,
+ },
+ [LPC_ICH0] = {
+ .name = "ICH0",
+ .iTCO_version = 1,
+ },
+ [LPC_ICH2] = {
+ .name = "ICH2",
+ .iTCO_version = 1,
+ },
+ [LPC_ICH2M] = {
+ .name = "ICH2-M",
+ .iTCO_version = 1,
+ },
+ [LPC_ICH3] = {
+ .name = "ICH3-S",
+ .iTCO_version = 1,
+ },
+ [LPC_ICH3M] = {
+ .name = "ICH3-M",
+ .iTCO_version = 1,
+ },
+ [LPC_ICH4] = {
+ .name = "ICH4",
+ .iTCO_version = 1,
+ },
+ [LPC_ICH4M] = {
+ .name = "ICH4-M",
+ .iTCO_version = 1,
+ },
+ [LPC_CICH] = {
+ .name = "C-ICH",
+ .iTCO_version = 1,
+ },
+ [LPC_ICH5] = {
+ .name = "ICH5 or ICH5R",
+ .iTCO_version = 1,
+ },
+ [LPC_6300ESB] = {
+ .name = "6300ESB",
+ .iTCO_version = 1,
+ },
+ [LPC_ICH6] = {
+ .name = "ICH6 or ICH6R",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V6_GPIO,
+ },
+ [LPC_ICH6M] = {
+ .name = "ICH6-M",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V6_GPIO,
+ },
+ [LPC_ICH6W] = {
+ .name = "ICH6W or ICH6RW",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V6_GPIO,
+ },
+ [LPC_631XESB] = {
+ .name = "631xESB/632xESB",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V6_GPIO,
+ },
+ [LPC_ICH7] = {
+ .name = "ICH7 or ICH7R",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V7_GPIO,
+ },
+ [LPC_ICH7DH] = {
+ .name = "ICH7DH",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V7_GPIO,
+ },
+ [LPC_ICH7M] = {
+ .name = "ICH7-M or ICH7-U",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V7_GPIO,
+ },
+ [LPC_ICH7MDH] = {
+ .name = "ICH7-M DH",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V7_GPIO,
+ },
+ [LPC_NM10] = {
+ .name = "NM10",
+ .iTCO_version = 2,
+ },
+ [LPC_ICH8] = {
+ .name = "ICH8 or ICH8R",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V7_GPIO,
+ },
+ [LPC_ICH8DH] = {
+ .name = "ICH8DH",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V7_GPIO,
+ },
+ [LPC_ICH8DO] = {
+ .name = "ICH8DO",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V7_GPIO,
+ },
+ [LPC_ICH8M] = {
+ .name = "ICH8M",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V7_GPIO,
+ },
+ [LPC_ICH8ME] = {
+ .name = "ICH8M-E",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V7_GPIO,
+ },
+ [LPC_ICH9] = {
+ .name = "ICH9",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V9_GPIO,
+ },
+ [LPC_ICH9R] = {
+ .name = "ICH9R",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V9_GPIO,
+ },
+ [LPC_ICH9DH] = {
+ .name = "ICH9DH",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V9_GPIO,
+ },
+ [LPC_ICH9DO] = {
+ .name = "ICH9DO",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V9_GPIO,
+ },
+ [LPC_ICH9M] = {
+ .name = "ICH9M",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V9_GPIO,
+ },
+ [LPC_ICH9ME] = {
+ .name = "ICH9M-E",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V9_GPIO,
+ },
+ [LPC_ICH10] = {
+ .name = "ICH10",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V10CONS_GPIO,
+ },
+ [LPC_ICH10R] = {
+ .name = "ICH10R",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V10CONS_GPIO,
+ },
+ [LPC_ICH10D] = {
+ .name = "ICH10D",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V10CORP_GPIO,
+ },
+ [LPC_ICH10DO] = {
+ .name = "ICH10DO",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V10CORP_GPIO,
+ },
+ [LPC_PCH] = {
+ .name = "PCH Desktop Full Featured",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_PCHM] = {
+ .name = "PCH Mobile Full Featured",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_P55] = {
+ .name = "P55",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_PM55] = {
+ .name = "PM55",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_H55] = {
+ .name = "H55",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_QM57] = {
+ .name = "QM57",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_H57] = {
+ .name = "H57",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_HM55] = {
+ .name = "HM55",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_Q57] = {
+ .name = "Q57",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_HM57] = {
+ .name = "HM57",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_PCHMSFF] = {
+ .name = "PCH Mobile SFF Full Featured",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_QS57] = {
+ .name = "QS57",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_3400] = {
+ .name = "3400",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_3420] = {
+ .name = "3420",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_3450] = {
+ .name = "3450",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_EP80579] = {
+ .name = "EP80579",
+ .iTCO_version = 2,
+ },
+ [LPC_CPT] = {
+ .name = "Cougar Point",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_CPTD] = {
+ .name = "Cougar Point Desktop",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_CPTM] = {
+ .name = "Cougar Point Mobile",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_PBG] = {
+ .name = "Patsburg",
+ .iTCO_version = 2,
+ },
+ [LPC_DH89XXCC] = {
+ .name = "DH89xxCC",
+ .iTCO_version = 2,
+ },
+ [LPC_PPT] = {
+ .name = "Panther Point",
+ .iTCO_version = 2,
+ },
+ [LPC_LPT] = {
+ .name = "Lynx Point",
+ .iTCO_version = 2,
+ },
+};
+
+/*
+ * This data only exists for exporting the supported PCI ids
+ * via MODULE_DEVICE_TABLE. We do not actually register a
+ * pci_driver, because the I/O Controller Hub has also other
+ * functions that probably will be registered by other drivers.
+ */
+static DEFINE_PCI_DEVICE_TABLE(lpc_ich_ids) = {
+ { PCI_VDEVICE(INTEL, 0x2410), LPC_ICH},
+ { PCI_VDEVICE(INTEL, 0x2420), LPC_ICH0},
+ { PCI_VDEVICE(INTEL, 0x2440), LPC_ICH2},
+ { PCI_VDEVICE(INTEL, 0x244c), LPC_ICH2M},
+ { PCI_VDEVICE(INTEL, 0x2480), LPC_ICH3},
+ { PCI_VDEVICE(INTEL, 0x248c), LPC_ICH3M},
+ { PCI_VDEVICE(INTEL, 0x24c0), LPC_ICH4},
+ { PCI_VDEVICE(INTEL, 0x24cc), LPC_ICH4M},
+ { PCI_VDEVICE(INTEL, 0x2450), LPC_CICH},
+ { PCI_VDEVICE(INTEL, 0x24d0), LPC_ICH5},
+ { PCI_VDEVICE(INTEL, 0x25a1), LPC_6300ESB},
+ { PCI_VDEVICE(INTEL, 0x2640), LPC_ICH6},
+ { PCI_VDEVICE(INTEL, 0x2641), LPC_ICH6M},
+ { PCI_VDEVICE(INTEL, 0x2642), LPC_ICH6W},
+ { PCI_VDEVICE(INTEL, 0x2670), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x2671), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x2672), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x2673), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x2674), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x2675), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x2676), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x2677), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x2678), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x2679), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x267a), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x267b), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x267c), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x267d), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x267e), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x267f), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x27b8), LPC_ICH7},
+ { PCI_VDEVICE(INTEL, 0x27b0), LPC_ICH7DH},
+ { PCI_VDEVICE(INTEL, 0x27b9), LPC_ICH7M},
+ { PCI_VDEVICE(INTEL, 0x27bd), LPC_ICH7MDH},
+ { PCI_VDEVICE(INTEL, 0x27bc), LPC_NM10},
+ { PCI_VDEVICE(INTEL, 0x2810), LPC_ICH8},
+ { PCI_VDEVICE(INTEL, 0x2812), LPC_ICH8DH},
+ { PCI_VDEVICE(INTEL, 0x2814), LPC_ICH8DO},
+ { PCI_VDEVICE(INTEL, 0x2815), LPC_ICH8M},
+ { PCI_VDEVICE(INTEL, 0x2811), LPC_ICH8ME},
+ { PCI_VDEVICE(INTEL, 0x2918), LPC_ICH9},
+ { PCI_VDEVICE(INTEL, 0x2916), LPC_ICH9R},
+ { PCI_VDEVICE(INTEL, 0x2912), LPC_ICH9DH},
+ { PCI_VDEVICE(INTEL, 0x2914), LPC_ICH9DO},
+ { PCI_VDEVICE(INTEL, 0x2919), LPC_ICH9M},
+ { PCI_VDEVICE(INTEL, 0x2917), LPC_ICH9ME},
+ { PCI_VDEVICE(INTEL, 0x3a18), LPC_ICH10},
+ { PCI_VDEVICE(INTEL, 0x3a16), LPC_ICH10R},
+ { PCI_VDEVICE(INTEL, 0x3a1a), LPC_ICH10D},
+ { PCI_VDEVICE(INTEL, 0x3a14), LPC_ICH10DO},
+ { PCI_VDEVICE(INTEL, 0x3b00), LPC_PCH},
+ { PCI_VDEVICE(INTEL, 0x3b01), LPC_PCHM},
+ { PCI_VDEVICE(INTEL, 0x3b02), LPC_P55},
+ { PCI_VDEVICE(INTEL, 0x3b03), LPC_PM55},
+ { PCI_VDEVICE(INTEL, 0x3b06), LPC_H55},
+ { PCI_VDEVICE(INTEL, 0x3b07), LPC_QM57},
+ { PCI_VDEVICE(INTEL, 0x3b08), LPC_H57},
+ { PCI_VDEVICE(INTEL, 0x3b09), LPC_HM55},
+ { PCI_VDEVICE(INTEL, 0x3b0a), LPC_Q57},
+ { PCI_VDEVICE(INTEL, 0x3b0b), LPC_HM57},
+ { PCI_VDEVICE(INTEL, 0x3b0d), LPC_PCHMSFF},
+ { PCI_VDEVICE(INTEL, 0x3b0f), LPC_QS57},
+ { PCI_VDEVICE(INTEL, 0x3b12), LPC_3400},
+ { PCI_VDEVICE(INTEL, 0x3b14), LPC_3420},
+ { PCI_VDEVICE(INTEL, 0x3b16), LPC_3450},
+ { PCI_VDEVICE(INTEL, 0x5031), LPC_EP80579},
+ { PCI_VDEVICE(INTEL, 0x1c41), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c42), LPC_CPTD},
+ { PCI_VDEVICE(INTEL, 0x1c43), LPC_CPTM},
+ { PCI_VDEVICE(INTEL, 0x1c44), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c45), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c46), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c47), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c48), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c49), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c4a), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c4b), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c4c), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c4d), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c4e), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c4f), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c50), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c51), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c52), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c53), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c54), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c55), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c56), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c57), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c58), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c59), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c5a), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c5b), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c5c), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c5d), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c5e), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c5f), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1d40), LPC_PBG},
+ { PCI_VDEVICE(INTEL, 0x1d41), LPC_PBG},
+ { PCI_VDEVICE(INTEL, 0x2310), LPC_DH89XXCC},
+ { PCI_VDEVICE(INTEL, 0x1e40), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e41), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e42), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e43), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e44), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e45), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e46), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e47), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e48), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e49), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e4a), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e4b), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e4c), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e4d), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e4e), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e4f), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e50), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e51), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e52), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e53), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e54), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e55), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e56), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e57), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e58), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e59), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e5a), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e5b), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e5c), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e5d), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e5e), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e5f), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x8c40), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c41), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c42), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c43), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c44), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c45), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c46), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c47), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c48), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c49), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c4a), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c4b), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c4c), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c4d), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c4e), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c4f), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c50), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c51), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c52), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c53), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c54), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c55), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c56), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c57), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c58), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c59), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c5a), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c5b), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c5c), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c5d), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c5e), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c5f), LPC_LPT},
+ { 0, }, /* End of list */
+};
+MODULE_DEVICE_TABLE(pci, lpc_ich_ids);
+
+static void lpc_ich_restore_config_space(struct pci_dev *dev)
+{
+ if (lpc_ich_acpi_save >= 0) {
+ pci_write_config_byte(dev, ACPICTRL, lpc_ich_acpi_save);
+ lpc_ich_acpi_save = -1;
+ }
+
+ if (lpc_ich_gpio_save >= 0) {
+ pci_write_config_byte(dev, GPIOCTRL, lpc_ich_gpio_save);
+ lpc_ich_gpio_save = -1;
+ }
+}
+
+static void __devinit lpc_ich_enable_acpi_space(struct pci_dev *dev)
+{
+ u8 reg_save;
+
+ pci_read_config_byte(dev, ACPICTRL, ®_save);
+ pci_write_config_byte(dev, ACPICTRL, reg_save | 0x10);
+ lpc_ich_acpi_save = reg_save;
+}
+
+static void __devinit lpc_ich_enable_gpio_space(struct pci_dev *dev)
+{
+ u8 reg_save;
+
+ pci_read_config_byte(dev, GPIOCTRL, ®_save);
+ pci_write_config_byte(dev, GPIOCTRL, reg_save | 0x10);
+ lpc_ich_gpio_save = reg_save;
+}
+
+static void __devinit lpc_ich_finalize_cell(struct mfd_cell *cell,
+ const struct pci_device_id *id)
+{
+ cell->platform_data = &lpc_chipset_info[id->driver_data];
+ cell->pdata_size = sizeof(struct lpc_ich_info);
+}
+
+static int __devinit lpc_ich_init_gpio(struct pci_dev *dev,
+ const struct pci_device_id *id)
+{
+ u32 base_addr_cfg;
+ u32 base_addr;
+ int ret;
+ bool acpi_conflict = false;
+ struct resource *res;
+
+ /* Setup power management base register */
+ pci_read_config_dword(dev, ACPIBASE, &base_addr_cfg);
+ base_addr = base_addr_cfg & 0x0000ff80;
+ if (!base_addr) {
+ dev_err(&dev->dev, "I/O space for ACPI uninitialized\n");
+ lpc_ich_cells[LPC_GPIO].num_resources--;
+ goto gpe0_done;
+ }
+
+ res = &gpio_ich_res[ICH_RES_GPE0];
+ res->start = base_addr + ACPIBASE_GPE_OFF;
+ res->end = base_addr + ACPIBASE_GPE_END;
+ ret = acpi_check_resource_conflict(res);
+ if (ret) {
+ /*
+ * This isn't fatal for the GPIO, but we have to make sure that
+ * the platform_device subsystem doesn't see this resource
+ * or it will register an invalid region.
+ */
+ lpc_ich_cells[LPC_GPIO].num_resources--;
+ acpi_conflict = true;
+ } else {
+ lpc_ich_enable_acpi_space(dev);
+ }
+
+gpe0_done:
+ /* Setup GPIO base register */
+ pci_read_config_dword(dev, GPIOBASE, &base_addr_cfg);
+ base_addr = base_addr_cfg & 0x0000ff80;
+ if (!base_addr) {
+ dev_err(&dev->dev, "I/O space for GPIO uninitialized\n");
+ ret = -ENODEV;
+ goto gpio_done;
+ }
+
+ /* Older devices provide fewer GPIO and have a smaller resource size. */
+ res = &gpio_ich_res[ICH_RES_GPIO];
+ res->start = base_addr;
+ switch (lpc_chipset_info[id->driver_data].gpio_version) {
+ case ICH_V5_GPIO:
+ case ICH_V10CORP_GPIO:
+ res->end = res->start + 128 - 1;
+ break;
+ default:
+ res->end = res->start + 64 - 1;
+ break;
+ }
+
+ ret = acpi_check_resource_conflict(res);
+ if (ret) {
+ /* this isn't necessarily fatal for the GPIO */
+ acpi_conflict = true;
+ goto gpio_done;
+ }
+ lpc_ich_enable_gpio_space(dev);
+
+ lpc_ich_finalize_cell(&lpc_ich_cells[LPC_GPIO], id);
+ ret = mfd_add_devices(&dev->dev, -1, &lpc_ich_cells[LPC_GPIO],
+ 1, NULL, 0);
+
+gpio_done:
+ if (acpi_conflict)
+ pr_warn("Resource conflict(s) found affecting %s\n",
+ lpc_ich_cells[LPC_GPIO].name);
+ return ret;
+}
+
+static int __devinit lpc_ich_init_wdt(struct pci_dev *dev,
+ const struct pci_device_id *id)
+{
+ u32 base_addr_cfg;
+ u32 base_addr;
+ int ret;
+ bool acpi_conflict = false;
+ struct resource *res;
+
+ /* Setup power management base register */
+ pci_read_config_dword(dev, ACPIBASE, &base_addr_cfg);
+ base_addr = base_addr_cfg & 0x0000ff80;
+ if (!base_addr) {
+ dev_err(&dev->dev, "I/O space for ACPI uninitialized\n");
+ ret = -ENODEV;
+ goto wdt_done;
+ }
+
+ res = wdt_io_res(ICH_RES_IO_TCO);
+ res->start = base_addr + ACPIBASE_TCO_OFF;
+ res->end = base_addr + ACPIBASE_TCO_END;
+ ret = acpi_check_resource_conflict(res);
+ if (ret) {
+ acpi_conflict = true;
+ goto wdt_done;
+ }
+
+ res = wdt_io_res(ICH_RES_IO_SMI);
+ res->start = base_addr + ACPIBASE_SMI_OFF;
+ res->end = base_addr + ACPIBASE_SMI_END;
+ ret = acpi_check_resource_conflict(res);
+ if (ret) {
+ acpi_conflict = true;
+ goto wdt_done;
+ }
+ lpc_ich_enable_acpi_space(dev);
+
+ /*
+ * Get the Memory-Mapped GCS register. To get access to it
+ * we have to read RCBA from PCI Config space 0xf0 and use
+ * it as base. GCS = RCBA + ICH6_GCS(0x3410).
+ */
+ if (lpc_chipset_info[id->driver_data].iTCO_version == 2) {
+ pci_read_config_dword(dev, RCBABASE, &base_addr_cfg);
+ base_addr = base_addr_cfg & 0xffffc000;
+ if (!(base_addr_cfg & 1)) {
+ pr_err("RCBA is disabled by hardware/BIOS, "
+ "device disabled\n");
+ ret = -ENODEV;
+ goto wdt_done;
+ }
+ res = wdt_mem_res(ICH_RES_MEM_GCS);
+ res->start = base_addr + ACPIBASE_GCS_OFF;
+ res->end = base_addr + ACPIBASE_GCS_END;
+ ret = acpi_check_resource_conflict(res);
+ if (ret) {
+ acpi_conflict = true;
+ goto wdt_done;
+ }
+ }
+
+ lpc_ich_finalize_cell(&lpc_ich_cells[LPC_WDT], id);
+ ret = mfd_add_devices(&dev->dev, -1, &lpc_ich_cells[LPC_WDT],
+ 1, NULL, 0);
+
+wdt_done:
+ if (acpi_conflict)
+ pr_warn("Resource conflict(s) found affecting %s\n",
+ lpc_ich_cells[LPC_WDT].name);
+ return ret;
+}
+
+static int __devinit lpc_ich_probe(struct pci_dev *dev,
+ const struct pci_device_id *id)
+{
+ int ret;
+ bool cell_added = false;
+
+ ret = lpc_ich_init_wdt(dev, id);
+ if (!ret)
+ cell_added = true;
+
+ ret = lpc_ich_init_gpio(dev, id);
+ if (!ret)
+ cell_added = true;
+
+ /*
+ * We only care if at least one or none of the cells registered
+ * successfully.
+ */
+ if (!cell_added) {
+ lpc_ich_restore_config_space(dev);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static void __devexit lpc_ich_remove(struct pci_dev *dev)
+{
+ mfd_remove_devices(&dev->dev);
+ lpc_ich_restore_config_space(dev);
+}
+
+static struct pci_driver lpc_ich_driver = {
+ .name = "lpc_ich",
+ .id_table = lpc_ich_ids,
+ .probe = lpc_ich_probe,
+ .remove = __devexit_p(lpc_ich_remove),
+};
+
+static int __init lpc_ich_init(void)
+{
+ return pci_register_driver(&lpc_ich_driver);
+}
+
+static void __exit lpc_ich_exit(void)
+{
+ pci_unregister_driver(&lpc_ich_driver);
+}
+
+module_init(lpc_ich_init);
+module_exit(lpc_ich_exit);
+
+MODULE_AUTHOR("Aaron Sierra <asierra@xes-inc.com>");
+MODULE_DESCRIPTION("LPC interface for Intel ICH");
+MODULE_LICENSE("GPL");
#define GPIOBASE 0x44
#define GPIO_IO_SIZE 64
+#define GPIO_IO_SIZE_CENTERTON 128
#define WDTBASE 0x84
#define WDT_IO_SIZE 64
static struct mfd_cell tunnelcreek_cells[] = {
{
- .name = "tunnelcreek_wdt",
+ .name = "ie6xx_wdt",
.num_resources = 1,
.resources = &wdt_sch_resource,
},
static DEFINE_PCI_DEVICE_TABLE(lpc_sch_ids) = {
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SCH_LPC) },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ITC_LPC) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CENTERTON_ILB) },
{ 0, }
};
MODULE_DEVICE_TABLE(pci, lpc_sch_ids);
}
gpio_sch_resource.start = base_addr;
- gpio_sch_resource.end = base_addr + GPIO_IO_SIZE - 1;
+
+ if (id->device == PCI_DEVICE_ID_INTEL_CENTERTON_ILB)
+ gpio_sch_resource.end = base_addr + GPIO_IO_SIZE_CENTERTON - 1;
+ else
+ gpio_sch_resource.end = base_addr + GPIO_IO_SIZE - 1;
for (i=0; i < ARRAY_SIZE(lpc_sch_cells); i++)
lpc_sch_cells[i].id = id->device;
if (ret)
goto out_dev;
- if (id->device == PCI_DEVICE_ID_INTEL_ITC_LPC) {
+ if (id->device == PCI_DEVICE_ID_INTEL_ITC_LPC
+ || id->device == PCI_DEVICE_ID_INTEL_CENTERTON_ILB) {
pci_read_config_dword(dev, WDTBASE, &base_addr_cfg);
if (!(base_addr_cfg & (1 << 31))) {
dev_err(&dev->dev, "Decode of the WDT I/O range disabled\n");
.remove = __devexit_p(lpc_sch_remove),
};
-static int __init lpc_sch_init(void)
-{
- return pci_register_driver(&lpc_sch_driver);
-}
-
-static void __exit lpc_sch_exit(void)
-{
- pci_unregister_driver(&lpc_sch_driver);
-}
-
-module_init(lpc_sch_init);
-module_exit(lpc_sch_exit);
+module_pci_driver(lpc_sch_driver);
MODULE_AUTHOR("Denis Turischev <denis@compulab.co.il>");
MODULE_DESCRIPTION("LPC interface for Intel Poulsbo SCH");
--- /dev/null
+/*
+ * max77693-irq.c - Interrupt controller support for MAX77693
+ *
+ * Copyright (C) 2012 Samsung Electronics Co.Ltd
+ * SangYoung Son <hello.son@samsung.com>
+ *
+ * This program is not provided / owned by Maxim Integrated Products.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * This driver is based on max8997-irq.c
+ */
+
+#include <linux/err.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/irqdomain.h>
+#include <linux/mfd/max77693.h>
+#include <linux/mfd/max77693-private.h>
+
+static const u8 max77693_mask_reg[] = {
+ [LED_INT] = MAX77693_LED_REG_FLASH_INT_MASK,
+ [TOPSYS_INT] = MAX77693_PMIC_REG_TOPSYS_INT_MASK,
+ [CHG_INT] = MAX77693_CHG_REG_CHG_INT_MASK,
+ [MUIC_INT1] = MAX77693_MUIC_REG_INTMASK1,
+ [MUIC_INT2] = MAX77693_MUIC_REG_INTMASK2,
+ [MUIC_INT3] = MAX77693_MUIC_REG_INTMASK3,
+};
+
+static struct regmap *max77693_get_regmap(struct max77693_dev *max77693,
+ enum max77693_irq_source src)
+{
+ switch (src) {
+ case LED_INT ... CHG_INT:
+ return max77693->regmap;
+ case MUIC_INT1 ... MUIC_INT3:
+ return max77693->regmap_muic;
+ default:
+ return ERR_PTR(-EINVAL);
+ }
+}
+
+struct max77693_irq_data {
+ int mask;
+ enum max77693_irq_source group;
+};
+
+#define DECLARE_IRQ(idx, _group, _mask) \
+ [(idx)] = { .group = (_group), .mask = (_mask) }
+static const struct max77693_irq_data max77693_irqs[] = {
+ DECLARE_IRQ(MAX77693_LED_IRQ_FLED2_OPEN, LED_INT, 1 << 0),
+ DECLARE_IRQ(MAX77693_LED_IRQ_FLED2_SHORT, LED_INT, 1 << 1),
+ DECLARE_IRQ(MAX77693_LED_IRQ_FLED1_OPEN, LED_INT, 1 << 2),
+ DECLARE_IRQ(MAX77693_LED_IRQ_FLED1_SHORT, LED_INT, 1 << 3),
+ DECLARE_IRQ(MAX77693_LED_IRQ_MAX_FLASH, LED_INT, 1 << 4),
+
+ DECLARE_IRQ(MAX77693_TOPSYS_IRQ_T120C_INT, TOPSYS_INT, 1 << 0),
+ DECLARE_IRQ(MAX77693_TOPSYS_IRQ_T140C_INT, TOPSYS_INT, 1 << 1),
+ DECLARE_IRQ(MAX77693_TOPSYS_IRQ_LOWSYS_INT, TOPSYS_INT, 1 << 3),
+
+ DECLARE_IRQ(MAX77693_CHG_IRQ_BYP_I, CHG_INT, 1 << 0),
+ DECLARE_IRQ(MAX77693_CHG_IRQ_THM_I, CHG_INT, 1 << 2),
+ DECLARE_IRQ(MAX77693_CHG_IRQ_BAT_I, CHG_INT, 1 << 3),
+ DECLARE_IRQ(MAX77693_CHG_IRQ_CHG_I, CHG_INT, 1 << 4),
+ DECLARE_IRQ(MAX77693_CHG_IRQ_CHGIN_I, CHG_INT, 1 << 6),
+
+ DECLARE_IRQ(MAX77693_MUIC_IRQ_INT1_ADC, MUIC_INT1, 1 << 0),
+ DECLARE_IRQ(MAX77693_MUIC_IRQ_INT1_ADC_LOW, MUIC_INT1, 1 << 1),
+ DECLARE_IRQ(MAX77693_MUIC_IRQ_INT1_ADC_ERR, MUIC_INT1, 1 << 2),
+ DECLARE_IRQ(MAX77693_MUIC_IRQ_INT1_ADC1K, MUIC_INT1, 1 << 3),
+
+ DECLARE_IRQ(MAX77693_MUIC_IRQ_INT2_CHGTYP, MUIC_INT2, 1 << 0),
+ DECLARE_IRQ(MAX77693_MUIC_IRQ_INT2_CHGDETREUN, MUIC_INT2, 1 << 1),
+ DECLARE_IRQ(MAX77693_MUIC_IRQ_INT2_DCDTMR, MUIC_INT2, 1 << 2),
+ DECLARE_IRQ(MAX77693_MUIC_IRQ_INT2_DXOVP, MUIC_INT2, 1 << 3),
+ DECLARE_IRQ(MAX77693_MUIC_IRQ_INT2_VBVOLT, MUIC_INT2, 1 << 4),
+ DECLARE_IRQ(MAX77693_MUIC_IRQ_INT2_VIDRM, MUIC_INT2, 1 << 5),
+
+ DECLARE_IRQ(MAX77693_MUIC_IRQ_INT3_EOC, MUIC_INT3, 1 << 0),
+ DECLARE_IRQ(MAX77693_MUIC_IRQ_INT3_CGMBC, MUIC_INT3, 1 << 1),
+ DECLARE_IRQ(MAX77693_MUIC_IRQ_INT3_OVP, MUIC_INT3, 1 << 2),
+ DECLARE_IRQ(MAX77693_MUIC_IRQ_INT3_MBCCHG_ERR, MUIC_INT3, 1 << 3),
+ DECLARE_IRQ(MAX77693_MUIC_IRQ_INT3_CHG_ENABLED, MUIC_INT3, 1 << 4),
+ DECLARE_IRQ(MAX77693_MUIC_IRQ_INT3_BAT_DET, MUIC_INT3, 1 << 5),
+};
+
+static void max77693_irq_lock(struct irq_data *data)
+{
+ struct max77693_dev *max77693 = irq_get_chip_data(data->irq);
+
+ mutex_lock(&max77693->irqlock);
+}
+
+static void max77693_irq_sync_unlock(struct irq_data *data)
+{
+ struct max77693_dev *max77693 = irq_get_chip_data(data->irq);
+ int i;
+
+ for (i = 0; i < MAX77693_IRQ_GROUP_NR; i++) {
+ u8 mask_reg = max77693_mask_reg[i];
+ struct regmap *map = max77693_get_regmap(max77693, i);
+
+ if (mask_reg == MAX77693_REG_INVALID ||
+ IS_ERR_OR_NULL(map))
+ continue;
+ max77693->irq_masks_cache[i] = max77693->irq_masks_cur[i];
+
+ max77693_write_reg(map, max77693_mask_reg[i],
+ max77693->irq_masks_cur[i]);
+ }
+
+ mutex_unlock(&max77693->irqlock);
+}
+
+static const inline struct max77693_irq_data *
+irq_to_max77693_irq(struct max77693_dev *max77693, int irq)
+{
+ return &max77693_irqs[irq];
+}
+
+static void max77693_irq_mask(struct irq_data *data)
+{
+ struct max77693_dev *max77693 = irq_get_chip_data(data->irq);
+ const struct max77693_irq_data *irq_data =
+ irq_to_max77693_irq(max77693, data->irq);
+
+ if (irq_data->group >= MUIC_INT1 && irq_data->group <= MUIC_INT3)
+ max77693->irq_masks_cur[irq_data->group] &= ~irq_data->mask;
+ else
+ max77693->irq_masks_cur[irq_data->group] |= irq_data->mask;
+}
+
+static void max77693_irq_unmask(struct irq_data *data)
+{
+ struct max77693_dev *max77693 = irq_get_chip_data(data->irq);
+ const struct max77693_irq_data *irq_data =
+ irq_to_max77693_irq(max77693, data->irq);
+
+ if (irq_data->group >= MUIC_INT1 && irq_data->group <= MUIC_INT3)
+ max77693->irq_masks_cur[irq_data->group] |= irq_data->mask;
+ else
+ max77693->irq_masks_cur[irq_data->group] &= ~irq_data->mask;
+}
+
+static struct irq_chip max77693_irq_chip = {
+ .name = "max77693",
+ .irq_bus_lock = max77693_irq_lock,
+ .irq_bus_sync_unlock = max77693_irq_sync_unlock,
+ .irq_mask = max77693_irq_mask,
+ .irq_unmask = max77693_irq_unmask,
+};
+
+#define MAX77693_IRQSRC_CHG (1 << 0)
+#define MAX77693_IRQSRC_TOP (1 << 1)
+#define MAX77693_IRQSRC_FLASH (1 << 2)
+#define MAX77693_IRQSRC_MUIC (1 << 3)
+static irqreturn_t max77693_irq_thread(int irq, void *data)
+{
+ struct max77693_dev *max77693 = data;
+ u8 irq_reg[MAX77693_IRQ_GROUP_NR] = {};
+ u8 irq_src;
+ int ret;
+ int i, cur_irq;
+
+ ret = max77693_read_reg(max77693->regmap, MAX77693_PMIC_REG_INTSRC,
+ &irq_src);
+ if (ret < 0) {
+ dev_err(max77693->dev, "Failed to read interrupt source: %d\n",
+ ret);
+ return IRQ_NONE;
+ }
+
+ if (irq_src & MAX77693_IRQSRC_CHG)
+ /* CHG_INT */
+ ret = max77693_read_reg(max77693->regmap, MAX77693_CHG_REG_CHG_INT,
+ &irq_reg[CHG_INT]);
+
+ if (irq_src & MAX77693_IRQSRC_TOP)
+ /* TOPSYS_INT */
+ ret = max77693_read_reg(max77693->regmap,
+ MAX77693_PMIC_REG_TOPSYS_INT, &irq_reg[TOPSYS_INT]);
+
+ if (irq_src & MAX77693_IRQSRC_FLASH)
+ /* LED_INT */
+ ret = max77693_read_reg(max77693->regmap,
+ MAX77693_LED_REG_FLASH_INT, &irq_reg[LED_INT]);
+
+ if (irq_src & MAX77693_IRQSRC_MUIC)
+ /* MUIC INT1 ~ INT3 */
+ max77693_bulk_read(max77693->regmap, MAX77693_MUIC_REG_INT1,
+ MAX77693_NUM_IRQ_MUIC_REGS, &irq_reg[MUIC_INT1]);
+
+ /* Apply masking */
+ for (i = 0; i < MAX77693_IRQ_GROUP_NR; i++) {
+ if (i >= MUIC_INT1 && i <= MUIC_INT3)
+ irq_reg[i] &= max77693->irq_masks_cur[i];
+ else
+ irq_reg[i] &= ~max77693->irq_masks_cur[i];
+ }
+
+ /* Report */
+ for (i = 0; i < MAX77693_IRQ_NR; i++) {
+ if (irq_reg[max77693_irqs[i].group] & max77693_irqs[i].mask) {
+ cur_irq = irq_find_mapping(max77693->irq_domain, i);
+ if (cur_irq)
+ handle_nested_irq(cur_irq);
+ }
+ }
+
+ return IRQ_HANDLED;
+}
+
+int max77693_irq_resume(struct max77693_dev *max77693)
+{
+ if (max77693->irq)
+ max77693_irq_thread(0, max77693);
+
+ return 0;
+}
+
+static int max77693_irq_domain_map(struct irq_domain *d, unsigned int irq,
+ irq_hw_number_t hw)
+{
+ struct max77693_dev *max77693 = d->host_data;
+
+ irq_set_chip_data(irq, max77693);
+ irq_set_chip_and_handler(irq, &max77693_irq_chip, handle_edge_irq);
+ irq_set_nested_thread(irq, 1);
+#ifdef CONFIG_ARM
+ set_irq_flags(irq, IRQF_VALID);
+#else
+ irq_set_noprobe(irq);
+#endif
+ return 0;
+}
+
+static struct irq_domain_ops max77693_irq_domain_ops = {
+ .map = max77693_irq_domain_map,
+};
+
+int max77693_irq_init(struct max77693_dev *max77693)
+{
+ struct irq_domain *domain;
+ int i;
+ int ret;
+
+ mutex_init(&max77693->irqlock);
+
+ /* Mask individual interrupt sources */
+ for (i = 0; i < MAX77693_IRQ_GROUP_NR; i++) {
+ struct regmap *map;
+ /* MUIC IRQ 0:MASK 1:NOT MASK */
+ /* Other IRQ 1:MASK 0:NOT MASK */
+ if (i >= MUIC_INT1 && i <= MUIC_INT3) {
+ max77693->irq_masks_cur[i] = 0x00;
+ max77693->irq_masks_cache[i] = 0x00;
+ } else {
+ max77693->irq_masks_cur[i] = 0xff;
+ max77693->irq_masks_cache[i] = 0xff;
+ }
+ map = max77693_get_regmap(max77693, i);
+
+ if (IS_ERR_OR_NULL(map))
+ continue;
+ if (max77693_mask_reg[i] == MAX77693_REG_INVALID)
+ continue;
+ if (i >= MUIC_INT1 && i <= MUIC_INT3)
+ max77693_write_reg(map, max77693_mask_reg[i], 0x00);
+ else
+ max77693_write_reg(map, max77693_mask_reg[i], 0xff);
+ }
+
+ domain = irq_domain_add_linear(NULL, MAX77693_IRQ_NR,
+ &max77693_irq_domain_ops, max77693);
+ if (!domain) {
+ dev_err(max77693->dev, "could not create irq domain\n");
+ return -ENODEV;
+ }
+ max77693->irq_domain = domain;
+
+ ret = request_threaded_irq(max77693->irq, NULL, max77693_irq_thread,
+ IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ "max77693-irq", max77693);
+
+ if (ret)
+ dev_err(max77693->dev, "Failed to request IRQ %d: %d\n",
+ max77693->irq, ret);
+
+ return 0;
+}
+
+void max77693_irq_exit(struct max77693_dev *max77693)
+{
+ if (max77693->irq)
+ free_irq(max77693->irq, max77693);
+}
--- /dev/null
+/*
+ * max77693.c - mfd core driver for the MAX 77693
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ * SangYoung Son <hello.son@smasung.com>
+ *
+ * This program is not provided / owned by Maxim Integrated Products.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * This driver is based on max8997.c
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/pm_runtime.h>
+#include <linux/mutex.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/max77693.h>
+#include <linux/mfd/max77693-private.h>
+#include <linux/regulator/machine.h>
+#include <linux/regmap.h>
+
+#define I2C_ADDR_PMIC (0xCC >> 1) /* Charger, Flash LED */
+#define I2C_ADDR_MUIC (0x4A >> 1)
+#define I2C_ADDR_HAPTIC (0x90 >> 1)
+
+static struct mfd_cell max77693_devs[] = {
+ { .name = "max77693-pmic", },
+ { .name = "max77693-charger", },
+ { .name = "max77693-flash", },
+ { .name = "max77693-muic", },
+ { .name = "max77693-haptic", },
+};
+
+int max77693_read_reg(struct regmap *map, u8 reg, u8 *dest)
+{
+ unsigned int val;
+ int ret;
+
+ ret = regmap_read(map, reg, &val);
+ *dest = val;
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(max77693_read_reg);
+
+int max77693_bulk_read(struct regmap *map, u8 reg, int count, u8 *buf)
+{
+ int ret;
+
+ ret = regmap_bulk_read(map, reg, buf, count);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(max77693_bulk_read);
+
+int max77693_write_reg(struct regmap *map, u8 reg, u8 value)
+{
+ int ret;
+
+ ret = regmap_write(map, reg, value);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(max77693_write_reg);
+
+int max77693_bulk_write(struct regmap *map, u8 reg, int count, u8 *buf)
+{
+ int ret;
+
+ ret = regmap_bulk_write(map, reg, buf, count);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(max77693_bulk_write);
+
+int max77693_update_reg(struct regmap *map, u8 reg, u8 val, u8 mask)
+{
+ int ret;
+
+ ret = regmap_update_bits(map, reg, mask, val);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(max77693_update_reg);
+
+static const struct regmap_config max77693_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = MAX77693_PMIC_REG_END,
+};
+
+static int max77693_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct max77693_dev *max77693;
+ struct max77693_platform_data *pdata = i2c->dev.platform_data;
+ u8 reg_data;
+ int ret = 0;
+
+ max77693 = devm_kzalloc(&i2c->dev,
+ sizeof(struct max77693_dev), GFP_KERNEL);
+ if (max77693 == NULL)
+ return -ENOMEM;
+
+ max77693->regmap = devm_regmap_init_i2c(i2c, &max77693_regmap_config);
+ if (IS_ERR(max77693->regmap)) {
+ ret = PTR_ERR(max77693->regmap);
+ dev_err(max77693->dev,"failed to allocate register map: %d\n",
+ ret);
+ goto err_regmap;
+ }
+
+ i2c_set_clientdata(i2c, max77693);
+ max77693->dev = &i2c->dev;
+ max77693->i2c = i2c;
+ max77693->irq = i2c->irq;
+ max77693->type = id->driver_data;
+
+ if (!pdata)
+ goto err_regmap;
+
+ max77693->wakeup = pdata->wakeup;
+
+ mutex_init(&max77693->iolock);
+
+ if (max77693_read_reg(max77693->regmap,
+ MAX77693_PMIC_REG_PMIC_ID2, ®_data) < 0) {
+ dev_err(max77693->dev, "device not found on this channel\n");
+ ret = -ENODEV;
+ goto err_regmap;
+ } else
+ dev_info(max77693->dev, "device ID: 0x%x\n", reg_data);
+
+ max77693->muic = i2c_new_dummy(i2c->adapter, I2C_ADDR_MUIC);
+ i2c_set_clientdata(max77693->muic, max77693);
+
+ max77693->haptic = i2c_new_dummy(i2c->adapter, I2C_ADDR_HAPTIC);
+ i2c_set_clientdata(max77693->haptic, max77693);
+
+ ret = max77693_irq_init(max77693);
+ if (ret < 0)
+ goto err_mfd;
+
+ pm_runtime_set_active(max77693->dev);
+
+ ret = mfd_add_devices(max77693->dev, -1, max77693_devs,
+ ARRAY_SIZE(max77693_devs), NULL, 0);
+ if (ret < 0)
+ goto err_mfd;
+
+ device_init_wakeup(max77693->dev, pdata->wakeup);
+
+ return ret;
+
+err_mfd:
+ i2c_unregister_device(max77693->muic);
+ i2c_unregister_device(max77693->haptic);
+err_regmap:
+ kfree(max77693);
+
+ return ret;
+}
+
+static int max77693_i2c_remove(struct i2c_client *i2c)
+{
+ struct max77693_dev *max77693 = i2c_get_clientdata(i2c);
+
+ mfd_remove_devices(max77693->dev);
+ i2c_unregister_device(max77693->muic);
+ i2c_unregister_device(max77693->haptic);
+
+ return 0;
+}
+
+static const struct i2c_device_id max77693_i2c_id[] = {
+ { "max77693", TYPE_MAX77693 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, max77693_i2c_id);
+
+static int max77693_suspend(struct device *dev)
+{
+ struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+ struct max77693_dev *max77693 = i2c_get_clientdata(i2c);
+
+ if (device_may_wakeup(dev))
+ irq_set_irq_wake(max77693->irq, 1);
+ return 0;
+}
+
+static int max77693_resume(struct device *dev)
+{
+ struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+ struct max77693_dev *max77693 = i2c_get_clientdata(i2c);
+
+ if (device_may_wakeup(dev))
+ irq_set_irq_wake(max77693->irq, 0);
+ return max77693_irq_resume(max77693);
+}
+
+const struct dev_pm_ops max77693_pm = {
+ .suspend = max77693_suspend,
+ .resume = max77693_resume,
+};
+
+static struct i2c_driver max77693_i2c_driver = {
+ .driver = {
+ .name = "max77693",
+ .owner = THIS_MODULE,
+ .pm = &max77693_pm,
+ },
+ .probe = max77693_i2c_probe,
+ .remove = max77693_i2c_remove,
+ .id_table = max77693_i2c_id,
+};
+
+static int __init max77693_i2c_init(void)
+{
+ return i2c_add_driver(&max77693_i2c_driver);
+}
+/* init early so consumer devices can complete system boot */
+subsys_initcall(max77693_i2c_init);
+
+static void __exit max77693_i2c_exit(void)
+{
+ i2c_del_driver(&max77693_i2c_driver);
+}
+module_exit(max77693_i2c_exit);
+
+MODULE_DESCRIPTION("MAXIM 77693 multi-function core driver");
+MODULE_AUTHOR("SangYoung, Son <hello.son@samsung.com>");
+MODULE_LICENSE("GPL");
#include <linux/platform_device.h>
#include <linux/mutex.h>
#include <linux/interrupt.h>
-#include <linux/spi/spi.h>
#include <linux/mfd/core.h>
#include <linux/mfd/mc13xxx.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_gpio.h>
-struct mc13xxx {
- struct spi_device *spidev;
- struct mutex lock;
- int irq;
- int flags;
-
- irq_handler_t irqhandler[MC13XXX_NUM_IRQ];
- void *irqdata[MC13XXX_NUM_IRQ];
-
- int adcflags;
-};
+#include "mc13xxx.h"
#define MC13XXX_IRQSTAT0 0
#define MC13XXX_IRQSTAT0_ADCDONEI (1 << 0)
#define MC13XXX_ADC2 45
-#define MC13XXX_NUMREGS 0x3f
-
void mc13xxx_lock(struct mc13xxx *mc13xxx)
{
if (!mutex_trylock(&mc13xxx->lock)) {
- dev_dbg(&mc13xxx->spidev->dev, "wait for %s from %pf\n",
+ dev_dbg(mc13xxx->dev, "wait for %s from %pf\n",
__func__, __builtin_return_address(0));
mutex_lock(&mc13xxx->lock);
}
- dev_dbg(&mc13xxx->spidev->dev, "%s from %pf\n",
+ dev_dbg(mc13xxx->dev, "%s from %pf\n",
__func__, __builtin_return_address(0));
}
EXPORT_SYMBOL(mc13xxx_lock);
void mc13xxx_unlock(struct mc13xxx *mc13xxx)
{
- dev_dbg(&mc13xxx->spidev->dev, "%s from %pf\n",
+ dev_dbg(mc13xxx->dev, "%s from %pf\n",
__func__, __builtin_return_address(0));
mutex_unlock(&mc13xxx->lock);
}
EXPORT_SYMBOL(mc13xxx_unlock);
-#define MC13XXX_REGOFFSET_SHIFT 25
int mc13xxx_reg_read(struct mc13xxx *mc13xxx, unsigned int offset, u32 *val)
{
- struct spi_transfer t;
- struct spi_message m;
int ret;
BUG_ON(!mutex_is_locked(&mc13xxx->lock));
if (offset > MC13XXX_NUMREGS)
return -EINVAL;
- *val = offset << MC13XXX_REGOFFSET_SHIFT;
-
- memset(&t, 0, sizeof(t));
-
- t.tx_buf = val;
- t.rx_buf = val;
- t.len = sizeof(u32);
-
- spi_message_init(&m);
- spi_message_add_tail(&t, &m);
-
- ret = spi_sync(mc13xxx->spidev, &m);
-
- /* error in message.status implies error return from spi_sync */
- BUG_ON(!ret && m.status);
+ ret = regmap_read(mc13xxx->regmap, offset, val);
+ dev_vdbg(mc13xxx->dev, "[0x%02x] -> 0x%06x\n", offset, *val);
- if (ret)
- return ret;
-
- *val &= 0xffffff;
-
- dev_vdbg(&mc13xxx->spidev->dev, "[0x%02x] -> 0x%06x\n", offset, *val);
-
- return 0;
+ return ret;
}
EXPORT_SYMBOL(mc13xxx_reg_read);
int mc13xxx_reg_write(struct mc13xxx *mc13xxx, unsigned int offset, u32 val)
{
- u32 buf;
- struct spi_transfer t;
- struct spi_message m;
- int ret;
-
BUG_ON(!mutex_is_locked(&mc13xxx->lock));
- dev_vdbg(&mc13xxx->spidev->dev, "[0x%02x] <- 0x%06x\n", offset, val);
+ dev_vdbg(mc13xxx->dev, "[0x%02x] <- 0x%06x\n", offset, val);
if (offset > MC13XXX_NUMREGS || val > 0xffffff)
return -EINVAL;
- buf = 1 << 31 | offset << MC13XXX_REGOFFSET_SHIFT | val;
-
- memset(&t, 0, sizeof(t));
-
- t.tx_buf = &buf;
- t.rx_buf = &buf;
- t.len = sizeof(u32);
-
- spi_message_init(&m);
- spi_message_add_tail(&t, &m);
-
- ret = spi_sync(mc13xxx->spidev, &m);
-
- BUG_ON(!ret && m.status);
-
- if (ret)
- return ret;
-
- return 0;
+ return regmap_write(mc13xxx->regmap, offset, val);
}
EXPORT_SYMBOL(mc13xxx_reg_write);
int mc13xxx_reg_rmw(struct mc13xxx *mc13xxx, unsigned int offset,
u32 mask, u32 val)
{
- int ret;
- u32 valread;
-
+ BUG_ON(!mutex_is_locked(&mc13xxx->lock));
BUG_ON(val & ~mask);
+ dev_vdbg(mc13xxx->dev, "[0x%02x] <- 0x%06x (mask: 0x%06x)\n",
+ offset, val, mask);
- ret = mc13xxx_reg_read(mc13xxx, offset, &valread);
- if (ret)
- return ret;
-
- valread = (valread & ~mask) | val;
-
- return mc13xxx_reg_write(mc13xxx, offset, valread);
+ return regmap_update_bits(mc13xxx->regmap, offset, mask, val);
}
EXPORT_SYMBOL(mc13xxx_reg_rmw);
if (handled == IRQ_HANDLED)
num_handled++;
} else {
- dev_err(&mc13xxx->spidev->dev,
+ dev_err(mc13xxx->dev,
"BUG: irq %u but no handler\n",
baseirq + irq);
return IRQ_RETVAL(handled);
}
-enum mc13xxx_id {
- MC13XXX_ID_MC13783,
- MC13XXX_ID_MC13892,
- MC13XXX_ID_INVALID,
-};
-
static const char *mc13xxx_chipname[] = {
[MC13XXX_ID_MC13783] = "mc13783",
[MC13XXX_ID_MC13892] = "mc13892",
};
#define maskval(reg, mask) (((reg) & (mask)) >> __ffs(mask))
-static int mc13xxx_identify(struct mc13xxx *mc13xxx, enum mc13xxx_id *id)
+static int mc13xxx_identify(struct mc13xxx *mc13xxx)
{
u32 icid;
u32 revision;
- const char *name;
int ret;
+ /*
+ * Get the generation ID from register 46, as apparently some older
+ * IC revisions only have this info at this location. Newer ICs seem to
+ * have both.
+ */
ret = mc13xxx_reg_read(mc13xxx, 46, &icid);
if (ret)
return ret;
switch (icid) {
case 2:
- *id = MC13XXX_ID_MC13783;
- name = "mc13783";
+ mc13xxx->ictype = MC13XXX_ID_MC13783;
break;
case 7:
- *id = MC13XXX_ID_MC13892;
- name = "mc13892";
+ mc13xxx->ictype = MC13XXX_ID_MC13892;
break;
default:
- *id = MC13XXX_ID_INVALID;
+ mc13xxx->ictype = MC13XXX_ID_INVALID;
break;
}
- if (*id == MC13XXX_ID_MC13783 || *id == MC13XXX_ID_MC13892) {
+ if (mc13xxx->ictype == MC13XXX_ID_MC13783 ||
+ mc13xxx->ictype == MC13XXX_ID_MC13892) {
ret = mc13xxx_reg_read(mc13xxx, MC13XXX_REVISION, &revision);
- if (ret)
- return ret;
- dev_info(&mc13xxx->spidev->dev, "%s: rev: %d.%d, "
+ dev_info(mc13xxx->dev, "%s: rev: %d.%d, "
"fin: %d, fab: %d, icid: %d/%d\n",
- mc13xxx_chipname[*id],
+ mc13xxx_chipname[mc13xxx->ictype],
maskval(revision, MC13XXX_REVISION_REVFULL),
maskval(revision, MC13XXX_REVISION_REVMETAL),
maskval(revision, MC13XXX_REVISION_FIN),
maskval(revision, MC13XXX_REVISION_ICIDCODE));
}
- if (*id != MC13XXX_ID_INVALID) {
- const struct spi_device_id *devid =
- spi_get_device_id(mc13xxx->spidev);
- if (!devid || devid->driver_data != *id)
- dev_warn(&mc13xxx->spidev->dev, "device id doesn't "
- "match auto detection!\n");
- }
-
- return 0;
+ return (mc13xxx->ictype == MC13XXX_ID_INVALID) ? -ENODEV : 0;
}
static const char *mc13xxx_get_chipname(struct mc13xxx *mc13xxx)
{
- const struct spi_device_id *devid =
- spi_get_device_id(mc13xxx->spidev);
-
- if (!devid)
- return NULL;
-
- return mc13xxx_chipname[devid->driver_data];
+ return mc13xxx_chipname[mc13xxx->ictype];
}
int mc13xxx_get_flags(struct mc13xxx *mc13xxx)
};
init_completion(&adcdone_data.done);
- dev_dbg(&mc13xxx->spidev->dev, "%s\n", __func__);
+ dev_dbg(mc13xxx->dev, "%s\n", __func__);
mc13xxx_lock(mc13xxx);
adc1 |= ato << MC13783_ADC1_ATO_SHIFT;
if (atox)
adc1 |= MC13783_ADC1_ATOX;
- dev_dbg(&mc13xxx->spidev->dev, "%s: request irq\n", __func__);
+
+ dev_dbg(mc13xxx->dev, "%s: request irq\n", __func__);
mc13xxx_irq_request(mc13xxx, MC13XXX_IRQ_ADCDONE,
mc13xxx_handler_adcdone, __func__, &adcdone_data);
mc13xxx_irq_ack(mc13xxx, MC13XXX_IRQ_ADCDONE);
if (!cell.name)
return -ENOMEM;
- return mfd_add_devices(&mc13xxx->spidev->dev, -1, &cell, 1, NULL, 0);
+ return mfd_add_devices(mc13xxx->dev, -1, &cell, 1, NULL, 0);
}
static int mc13xxx_add_subdevice(struct mc13xxx *mc13xxx, const char *format)
#ifdef CONFIG_OF
static int mc13xxx_probe_flags_dt(struct mc13xxx *mc13xxx)
{
- struct device_node *np = mc13xxx->spidev->dev.of_node;
+ struct device_node *np = mc13xxx->dev->of_node;
if (!np)
return -ENODEV;
}
#endif
-static const struct spi_device_id mc13xxx_device_id[] = {
- {
- .name = "mc13783",
- .driver_data = MC13XXX_ID_MC13783,
- }, {
- .name = "mc13892",
- .driver_data = MC13XXX_ID_MC13892,
- }, {
- /* sentinel */
- }
-};
-MODULE_DEVICE_TABLE(spi, mc13xxx_device_id);
-
-static const struct of_device_id mc13xxx_dt_ids[] = {
- { .compatible = "fsl,mc13783", .data = (void *) MC13XXX_ID_MC13783, },
- { .compatible = "fsl,mc13892", .data = (void *) MC13XXX_ID_MC13892, },
- { /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids);
-
-static int mc13xxx_probe(struct spi_device *spi)
+int mc13xxx_common_init(struct mc13xxx *mc13xxx,
+ struct mc13xxx_platform_data *pdata, int irq)
{
- const struct of_device_id *of_id;
- struct spi_driver *sdrv = to_spi_driver(spi->dev.driver);
- struct mc13xxx *mc13xxx;
- struct mc13xxx_platform_data *pdata = dev_get_platdata(&spi->dev);
- enum mc13xxx_id id;
int ret;
- of_id = of_match_device(mc13xxx_dt_ids, &spi->dev);
- if (of_id)
- sdrv->id_table = &mc13xxx_device_id[(enum mc13xxx_id) of_id->data];
-
- mc13xxx = kzalloc(sizeof(*mc13xxx), GFP_KERNEL);
- if (!mc13xxx)
- return -ENOMEM;
-
- dev_set_drvdata(&spi->dev, mc13xxx);
- spi->mode = SPI_MODE_0 | SPI_CS_HIGH;
- spi->bits_per_word = 32;
- spi_setup(spi);
-
- mc13xxx->spidev = spi;
-
- mutex_init(&mc13xxx->lock);
mc13xxx_lock(mc13xxx);
- ret = mc13xxx_identify(mc13xxx, &id);
- if (ret || id == MC13XXX_ID_INVALID)
+ ret = mc13xxx_identify(mc13xxx);
+ if (ret)
goto err_revision;
/* mask all irqs */
if (ret)
goto err_mask;
- ret = request_threaded_irq(spi->irq, NULL, mc13xxx_irq_thread,
+ ret = request_threaded_irq(irq, NULL, mc13xxx_irq_thread,
IRQF_ONESHOT | IRQF_TRIGGER_HIGH, "mc13xxx", mc13xxx);
if (ret) {
err_mask:
err_revision:
mc13xxx_unlock(mc13xxx);
- dev_set_drvdata(&spi->dev, NULL);
kfree(mc13xxx);
return ret;
}
+ mc13xxx->irq = irq;
+
mc13xxx_unlock(mc13xxx);
if (mc13xxx_probe_flags_dt(mc13xxx) < 0 && pdata)
return 0;
}
+EXPORT_SYMBOL_GPL(mc13xxx_common_init);
-static int __devexit mc13xxx_remove(struct spi_device *spi)
+void mc13xxx_common_cleanup(struct mc13xxx *mc13xxx)
{
- struct mc13xxx *mc13xxx = dev_get_drvdata(&spi->dev);
+ free_irq(mc13xxx->irq, mc13xxx);
- free_irq(mc13xxx->spidev->irq, mc13xxx);
+ mfd_remove_devices(mc13xxx->dev);
- mfd_remove_devices(&spi->dev);
+ regmap_exit(mc13xxx->regmap);
kfree(mc13xxx);
-
- return 0;
-}
-
-static struct spi_driver mc13xxx_driver = {
- .id_table = mc13xxx_device_id,
- .driver = {
- .name = "mc13xxx",
- .owner = THIS_MODULE,
- .of_match_table = mc13xxx_dt_ids,
- },
- .probe = mc13xxx_probe,
- .remove = __devexit_p(mc13xxx_remove),
-};
-
-static int __init mc13xxx_init(void)
-{
- return spi_register_driver(&mc13xxx_driver);
-}
-subsys_initcall(mc13xxx_init);
-
-static void __exit mc13xxx_exit(void)
-{
- spi_unregister_driver(&mc13xxx_driver);
}
-module_exit(mc13xxx_exit);
+EXPORT_SYMBOL_GPL(mc13xxx_common_cleanup);
MODULE_DESCRIPTION("Core driver for Freescale MC13XXX PMIC");
MODULE_AUTHOR("Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>");
--- /dev/null
+/*
+ * Copyright 2009-2010 Creative Product Design
+ * Marc Reilly marc@cpdesign.com.au
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation.
+ */
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/mutex.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/mc13xxx.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
+#include <linux/i2c.h>
+#include <linux/err.h>
+
+#include "mc13xxx.h"
+
+static const struct i2c_device_id mc13xxx_i2c_device_id[] = {
+ {
+ .name = "mc13892",
+ .driver_data = MC13XXX_ID_MC13892,
+ }, {
+ /* sentinel */
+ }
+};
+MODULE_DEVICE_TABLE(i2c, mc13xxx_i2c_device_id);
+
+static const struct of_device_id mc13xxx_dt_ids[] = {
+ {
+ .compatible = "fsl,mc13892",
+ .data = (void *) &mc13xxx_i2c_device_id[0],
+ }, {
+ /* sentinel */
+ }
+};
+MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids);
+
+static struct regmap_config mc13xxx_regmap_i2c_config = {
+ .reg_bits = 8,
+ .val_bits = 24,
+
+ .max_register = MC13XXX_NUMREGS,
+
+ .cache_type = REGCACHE_NONE,
+};
+
+static int mc13xxx_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ const struct of_device_id *of_id;
+ struct i2c_driver *idrv = to_i2c_driver(client->dev.driver);
+ struct mc13xxx *mc13xxx;
+ struct mc13xxx_platform_data *pdata = dev_get_platdata(&client->dev);
+ int ret;
+
+ of_id = of_match_device(mc13xxx_dt_ids, &client->dev);
+ if (of_id)
+ idrv->id_table = (const struct i2c_device_id*) of_id->data;
+
+ mc13xxx = kzalloc(sizeof(*mc13xxx), GFP_KERNEL);
+ if (!mc13xxx)
+ return -ENOMEM;
+
+ dev_set_drvdata(&client->dev, mc13xxx);
+
+ mc13xxx->dev = &client->dev;
+ mutex_init(&mc13xxx->lock);
+
+ mc13xxx->regmap = regmap_init_i2c(client, &mc13xxx_regmap_i2c_config);
+ if (IS_ERR(mc13xxx->regmap)) {
+ ret = PTR_ERR(mc13xxx->regmap);
+ dev_err(mc13xxx->dev, "Failed to initialize register map: %d\n",
+ ret);
+ dev_set_drvdata(&client->dev, NULL);
+ kfree(mc13xxx);
+ return ret;
+ }
+
+ ret = mc13xxx_common_init(mc13xxx, pdata, client->irq);
+
+ if (ret == 0 && (id->driver_data != mc13xxx->ictype))
+ dev_warn(mc13xxx->dev,
+ "device id doesn't match auto detection!\n");
+
+ return ret;
+}
+
+static int __devexit mc13xxx_i2c_remove(struct i2c_client *client)
+{
+ struct mc13xxx *mc13xxx = dev_get_drvdata(&client->dev);
+
+ mc13xxx_common_cleanup(mc13xxx);
+
+ return 0;
+}
+
+static struct i2c_driver mc13xxx_i2c_driver = {
+ .id_table = mc13xxx_i2c_device_id,
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "mc13xxx",
+ .of_match_table = mc13xxx_dt_ids,
+ },
+ .probe = mc13xxx_i2c_probe,
+ .remove = __devexit_p(mc13xxx_i2c_remove),
+};
+
+static int __init mc13xxx_i2c_init(void)
+{
+ return i2c_add_driver(&mc13xxx_i2c_driver);
+}
+subsys_initcall(mc13xxx_i2c_init);
+
+static void __exit mc13xxx_i2c_exit(void)
+{
+ i2c_del_driver(&mc13xxx_i2c_driver);
+}
+module_exit(mc13xxx_i2c_exit);
+
+MODULE_DESCRIPTION("i2c driver for Freescale MC13XXX PMIC");
+MODULE_AUTHOR("Marc Reilly <marc@cpdesign.com.au");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+/*
+ * Copyright 2009-2010 Pengutronix
+ * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
+ *
+ * loosely based on an earlier driver that has
+ * Copyright 2009 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation.
+ */
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/mutex.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/mc13xxx.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
+#include <linux/err.h>
+#include <linux/spi/spi.h>
+
+#include "mc13xxx.h"
+
+static const struct spi_device_id mc13xxx_device_id[] = {
+ {
+ .name = "mc13783",
+ .driver_data = MC13XXX_ID_MC13783,
+ }, {
+ .name = "mc13892",
+ .driver_data = MC13XXX_ID_MC13892,
+ }, {
+ /* sentinel */
+ }
+};
+MODULE_DEVICE_TABLE(spi, mc13xxx_device_id);
+
+static const struct of_device_id mc13xxx_dt_ids[] = {
+ { .compatible = "fsl,mc13783", .data = (void *) MC13XXX_ID_MC13783, },
+ { .compatible = "fsl,mc13892", .data = (void *) MC13XXX_ID_MC13892, },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids);
+
+static struct regmap_config mc13xxx_regmap_spi_config = {
+ .reg_bits = 7,
+ .pad_bits = 1,
+ .val_bits = 24,
+
+ .max_register = MC13XXX_NUMREGS,
+
+ .cache_type = REGCACHE_NONE,
+};
+
+static int mc13xxx_spi_probe(struct spi_device *spi)
+{
+ const struct of_device_id *of_id;
+ struct spi_driver *sdrv = to_spi_driver(spi->dev.driver);
+ struct mc13xxx *mc13xxx;
+ struct mc13xxx_platform_data *pdata = dev_get_platdata(&spi->dev);
+ int ret;
+
+ of_id = of_match_device(mc13xxx_dt_ids, &spi->dev);
+ if (of_id)
+ sdrv->id_table = &mc13xxx_device_id[(enum mc13xxx_id) of_id->data];
+
+ mc13xxx = kzalloc(sizeof(*mc13xxx), GFP_KERNEL);
+ if (!mc13xxx)
+ return -ENOMEM;
+
+ dev_set_drvdata(&spi->dev, mc13xxx);
+ spi->mode = SPI_MODE_0 | SPI_CS_HIGH;
+ spi->bits_per_word = 32;
+
+ mc13xxx->dev = &spi->dev;
+ mutex_init(&mc13xxx->lock);
+
+ mc13xxx->regmap = regmap_init_spi(spi, &mc13xxx_regmap_spi_config);
+ if (IS_ERR(mc13xxx->regmap)) {
+ ret = PTR_ERR(mc13xxx->regmap);
+ dev_err(mc13xxx->dev, "Failed to initialize register map: %d\n",
+ ret);
+ dev_set_drvdata(&spi->dev, NULL);
+ kfree(mc13xxx);
+ return ret;
+ }
+
+ ret = mc13xxx_common_init(mc13xxx, pdata, spi->irq);
+
+ if (ret) {
+ dev_set_drvdata(&spi->dev, NULL);
+ } else {
+ const struct spi_device_id *devid =
+ spi_get_device_id(spi);
+ if (!devid || devid->driver_data != mc13xxx->ictype)
+ dev_warn(mc13xxx->dev,
+ "device id doesn't match auto detection!\n");
+ }
+
+ return ret;
+}
+
+static int __devexit mc13xxx_spi_remove(struct spi_device *spi)
+{
+ struct mc13xxx *mc13xxx = dev_get_drvdata(&spi->dev);
+
+ mc13xxx_common_cleanup(mc13xxx);
+
+ return 0;
+}
+
+static struct spi_driver mc13xxx_spi_driver = {
+ .id_table = mc13xxx_device_id,
+ .driver = {
+ .name = "mc13xxx",
+ .owner = THIS_MODULE,
+ .of_match_table = mc13xxx_dt_ids,
+ },
+ .probe = mc13xxx_spi_probe,
+ .remove = __devexit_p(mc13xxx_spi_remove),
+};
+
+static int __init mc13xxx_init(void)
+{
+ return spi_register_driver(&mc13xxx_spi_driver);
+}
+subsys_initcall(mc13xxx_init);
+
+static void __exit mc13xxx_exit(void)
+{
+ spi_unregister_driver(&mc13xxx_spi_driver);
+}
+module_exit(mc13xxx_exit);
+
+MODULE_DESCRIPTION("Core driver for Freescale MC13XXX PMIC");
+MODULE_AUTHOR("Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+/*
+ * Copyright 2012 Creative Product Design
+ * Marc Reilly <marc@cpdesign.com.au>
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation.
+ */
+#ifndef __DRIVERS_MFD_MC13XXX_H
+#define __DRIVERS_MFD_MC13XXX_H
+
+#include <linux/mutex.h>
+#include <linux/regmap.h>
+#include <linux/mfd/mc13xxx.h>
+
+enum mc13xxx_id {
+ MC13XXX_ID_MC13783,
+ MC13XXX_ID_MC13892,
+ MC13XXX_ID_INVALID,
+};
+
+#define MC13XXX_NUMREGS 0x3f
+
+struct mc13xxx {
+ struct regmap *regmap;
+
+ struct device *dev;
+ enum mc13xxx_id ictype;
+
+ struct mutex lock;
+ int irq;
+ int flags;
+
+ irq_handler_t irqhandler[MC13XXX_NUM_IRQ];
+ void *irqdata[MC13XXX_NUM_IRQ];
+
+ int adcflags;
+};
+
+int mc13xxx_common_init(struct mc13xxx *mc13xxx,
+ struct mc13xxx_platform_data *pdata, int irq);
+
+void mc13xxx_common_cleanup(struct mc13xxx *mc13xxx);
+
+#endif /* __DRIVERS_MFD_MC13XXX_H */
return -ENOENT;
}
- pcf = kzalloc(sizeof(*pcf), GFP_KERNEL);
+ pcf = devm_kzalloc(&client->dev, sizeof(*pcf), GFP_KERNEL);
if (!pcf)
return -ENOMEM;
mutex_init(&pcf->lock);
- pcf->regmap = regmap_init_i2c(client, &pcf50633_regmap_config);
+ pcf->regmap = devm_regmap_init_i2c(client, &pcf50633_regmap_config);
if (IS_ERR(pcf->regmap)) {
ret = PTR_ERR(pcf->regmap);
- dev_err(pcf->dev, "Failed to allocate register map: %d\n",
- ret);
- goto err_free;
+ dev_err(pcf->dev, "Failed to allocate register map: %d\n", ret);
+ return ret;
}
i2c_set_clientdata(client, pcf);
if (version < 0 || variant < 0) {
dev_err(pcf->dev, "Unable to probe pcf50633\n");
ret = -ENODEV;
- goto err_regmap;
+ return ret;
}
dev_info(pcf->dev, "Probed device version %d variant %d\n",
pcf50633_irq_init(pcf, client->irq);
/* Create sub devices */
- pcf50633_client_dev_register(pcf, "pcf50633-input",
- &pcf->input_pdev);
- pcf50633_client_dev_register(pcf, "pcf50633-rtc",
- &pcf->rtc_pdev);
- pcf50633_client_dev_register(pcf, "pcf50633-mbc",
- &pcf->mbc_pdev);
- pcf50633_client_dev_register(pcf, "pcf50633-adc",
- &pcf->adc_pdev);
- pcf50633_client_dev_register(pcf, "pcf50633-backlight",
- &pcf->bl_pdev);
+ pcf50633_client_dev_register(pcf, "pcf50633-input", &pcf->input_pdev);
+ pcf50633_client_dev_register(pcf, "pcf50633-rtc", &pcf->rtc_pdev);
+ pcf50633_client_dev_register(pcf, "pcf50633-mbc", &pcf->mbc_pdev);
+ pcf50633_client_dev_register(pcf, "pcf50633-adc", &pcf->adc_pdev);
+ pcf50633_client_dev_register(pcf, "pcf50633-backlight", &pcf->bl_pdev);
for (i = 0; i < PCF50633_NUM_REGULATORS; i++) {
pdata->probe_done(pcf);
return 0;
-
-err_regmap:
- regmap_exit(pcf->regmap);
-err_free:
- kfree(pcf);
-
- return ret;
}
static int __devexit pcf50633_remove(struct i2c_client *client)
for (i = 0; i < PCF50633_NUM_REGULATORS; i++)
platform_device_unregister(pcf->regulator_pdev[i]);
- regmap_exit(pcf->regmap);
- kfree(pcf);
-
return 0;
}
(RC5T583_EXT_PWRREQ1_CONTROL | RC5T583_EXT_PWRREQ2_CONTROL)
static struct mfd_cell rc5t583_subdevs[] = {
+ {.name = "rc5t583-gpio",},
{.name = "rc5t583-regulator",},
{.name = "rc5t583-rtc", },
{.name = "rc5t583-key", }
rc5t583->dev = &i2c->dev;
i2c_set_clientdata(i2c, rc5t583);
- rc5t583->regmap = regmap_init_i2c(i2c, &rc5t583_regmap_config);
+ rc5t583->regmap = devm_regmap_init_i2c(i2c, &rc5t583_regmap_config);
if (IS_ERR(rc5t583->regmap)) {
ret = PTR_ERR(rc5t583->regmap);
dev_err(&i2c->dev, "regmap initialization failed: %d\n", ret);
ret = rc5t583_clear_ext_power_req(rc5t583, pdata);
if (ret < 0)
- goto err_irq_init;
+ return ret;
if (i2c->irq) {
ret = rc5t583_irq_init(rc5t583, i2c->irq, pdata->irq_base);
err_add_devs:
if (irq_init_success)
rc5t583_irq_exit(rc5t583);
-err_irq_init:
- regmap_exit(rc5t583->regmap);
return ret;
}
mfd_remove_devices(rc5t583->dev);
rc5t583_irq_exit(rc5t583);
- regmap_exit(rc5t583->regmap);
return 0;
}
.remove = __devexit_p(rdc321x_sb_remove),
};
-static int __init rdc321x_sb_init(void)
-{
- return pci_register_driver(&rdc321x_sb_driver);
-}
-
-static void __exit rdc321x_sb_exit(void)
-{
- pci_unregister_driver(&rdc321x_sb_driver);
-}
-
-module_init(rdc321x_sb_init);
-module_exit(rdc321x_sb_exit);
+module_pci_driver(rdc321x_sb_driver);
MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
MODULE_LICENSE("GPL");
s5m87xx->wakeup = pdata->wakeup;
}
- s5m87xx->regmap = regmap_init_i2c(i2c, &s5m_regmap_config);
+ s5m87xx->regmap = devm_regmap_init_i2c(i2c, &s5m_regmap_config);
if (IS_ERR(s5m87xx->regmap)) {
ret = PTR_ERR(s5m87xx->regmap);
dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
ret);
- goto err;
+ return ret;
}
s5m87xx->rtc = i2c_new_dummy(i2c->adapter, RTC_I2C_ADDR);
mfd_remove_devices(s5m87xx->dev);
s5m_irq_exit(s5m87xx);
i2c_unregister_device(s5m87xx->rtc);
- regmap_exit(s5m87xx->regmap);
return ret;
}
mfd_remove_devices(s5m87xx->dev);
s5m_irq_exit(s5m87xx);
i2c_unregister_device(s5m87xx->rtc);
- regmap_exit(s5m87xx->regmap);
return 0;
}
--- /dev/null
+/*
+ * Copyright (c) 2009-2011 Wind River Systems, Inc.
+ * Copyright (c) 2011 ST Microelectronics (Alessandro Rubini)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/errno.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/list.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/pci.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/sta2x11-mfd.h>
+
+#include <asm/sta2x11.h>
+
+/* This describes STA2X11 MFD chip for us, we may have several */
+struct sta2x11_mfd {
+ struct sta2x11_instance *instance;
+ spinlock_t lock;
+ struct list_head list;
+ void __iomem *sctl_regs;
+ void __iomem *apbreg_regs;
+};
+
+static LIST_HEAD(sta2x11_mfd_list);
+
+/* Three functions to act on the list */
+static struct sta2x11_mfd *sta2x11_mfd_find(struct pci_dev *pdev)
+{
+ struct sta2x11_instance *instance;
+ struct sta2x11_mfd *mfd;
+
+ if (!pdev && !list_empty(&sta2x11_mfd_list)) {
+ pr_warning("%s: Unspecified device, "
+ "using first instance\n", __func__);
+ return list_entry(sta2x11_mfd_list.next,
+ struct sta2x11_mfd, list);
+ }
+
+ instance = sta2x11_get_instance(pdev);
+ if (!instance)
+ return NULL;
+ list_for_each_entry(mfd, &sta2x11_mfd_list, list) {
+ if (mfd->instance == instance)
+ return mfd;
+ }
+ return NULL;
+}
+
+static int __devinit sta2x11_mfd_add(struct pci_dev *pdev, gfp_t flags)
+{
+ struct sta2x11_mfd *mfd = sta2x11_mfd_find(pdev);
+ struct sta2x11_instance *instance;
+
+ if (mfd)
+ return -EBUSY;
+ instance = sta2x11_get_instance(pdev);
+ if (!instance)
+ return -EINVAL;
+ mfd = kzalloc(sizeof(*mfd), flags);
+ if (!mfd)
+ return -ENOMEM;
+ INIT_LIST_HEAD(&mfd->list);
+ spin_lock_init(&mfd->lock);
+ mfd->instance = instance;
+ list_add(&mfd->list, &sta2x11_mfd_list);
+ return 0;
+}
+
+static int __devexit mfd_remove(struct pci_dev *pdev)
+{
+ struct sta2x11_mfd *mfd = sta2x11_mfd_find(pdev);
+
+ if (!mfd)
+ return -ENODEV;
+ list_del(&mfd->list);
+ kfree(mfd);
+ return 0;
+}
+
+/* These two functions are exported and are not expected to fail */
+u32 sta2x11_sctl_mask(struct pci_dev *pdev, u32 reg, u32 mask, u32 val)
+{
+ struct sta2x11_mfd *mfd = sta2x11_mfd_find(pdev);
+ u32 r;
+ unsigned long flags;
+
+ if (!mfd) {
+ dev_warn(&pdev->dev, ": can't access sctl regs\n");
+ return 0;
+ }
+ if (!mfd->sctl_regs) {
+ dev_warn(&pdev->dev, ": system ctl not initialized\n");
+ return 0;
+ }
+ spin_lock_irqsave(&mfd->lock, flags);
+ r = readl(mfd->sctl_regs + reg);
+ r &= ~mask;
+ r |= val;
+ if (mask)
+ writel(r, mfd->sctl_regs + reg);
+ spin_unlock_irqrestore(&mfd->lock, flags);
+ return r;
+}
+EXPORT_SYMBOL(sta2x11_sctl_mask);
+
+u32 sta2x11_apbreg_mask(struct pci_dev *pdev, u32 reg, u32 mask, u32 val)
+{
+ struct sta2x11_mfd *mfd = sta2x11_mfd_find(pdev);
+ u32 r;
+ unsigned long flags;
+
+ if (!mfd) {
+ dev_warn(&pdev->dev, ": can't access apb regs\n");
+ return 0;
+ }
+ if (!mfd->apbreg_regs) {
+ dev_warn(&pdev->dev, ": apb bridge not initialized\n");
+ return 0;
+ }
+ spin_lock_irqsave(&mfd->lock, flags);
+ r = readl(mfd->apbreg_regs + reg);
+ r &= ~mask;
+ r |= val;
+ if (mask)
+ writel(r, mfd->apbreg_regs + reg);
+ spin_unlock_irqrestore(&mfd->lock, flags);
+ return r;
+}
+EXPORT_SYMBOL(sta2x11_apbreg_mask);
+
+/* Two debugfs files, for our registers (FIXME: one instance only) */
+#define REG(regname) {.name = #regname, .offset = SCTL_ ## regname}
+static struct debugfs_reg32 sta2x11_sctl_regs[] = {
+ REG(SCCTL), REG(ARMCFG), REG(SCPLLCTL), REG(SCPLLFCTRL),
+ REG(SCRESFRACT), REG(SCRESCTRL1), REG(SCRESXTRL2), REG(SCPEREN0),
+ REG(SCPEREN1), REG(SCPEREN2), REG(SCGRST), REG(SCPCIPMCR1),
+ REG(SCPCIPMCR2), REG(SCPCIPMSR1), REG(SCPCIPMSR2), REG(SCPCIPMSR3),
+ REG(SCINTREN), REG(SCRISR), REG(SCCLKSTAT0), REG(SCCLKSTAT1),
+ REG(SCCLKSTAT2), REG(SCRSTSTA),
+};
+#undef REG
+
+static struct debugfs_regset32 sctl_regset = {
+ .regs = sta2x11_sctl_regs,
+ .nregs = ARRAY_SIZE(sta2x11_sctl_regs),
+};
+
+#define REG(regname) {.name = #regname, .offset = regname}
+static struct debugfs_reg32 sta2x11_apbreg_regs[] = {
+ REG(APBREG_BSR), REG(APBREG_PAER), REG(APBREG_PWAC), REG(APBREG_PRAC),
+ REG(APBREG_PCG), REG(APBREG_PUR), REG(APBREG_EMU_PCG),
+};
+#undef REG
+
+static struct debugfs_regset32 apbreg_regset = {
+ .regs = sta2x11_apbreg_regs,
+ .nregs = ARRAY_SIZE(sta2x11_apbreg_regs),
+};
+
+static struct dentry *sta2x11_sctl_debugfs;
+static struct dentry *sta2x11_apbreg_debugfs;
+
+/* Probe for the two platform devices */
+static int sta2x11_sctl_probe(struct platform_device *dev)
+{
+ struct pci_dev **pdev;
+ struct sta2x11_mfd *mfd;
+ struct resource *res;
+
+ pdev = dev->dev.platform_data;
+ mfd = sta2x11_mfd_find(*pdev);
+ if (!mfd)
+ return -ENODEV;
+
+ res = platform_get_resource(dev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENOMEM;
+
+ if (!request_mem_region(res->start, resource_size(res),
+ "sta2x11-sctl"))
+ return -EBUSY;
+
+ mfd->sctl_regs = ioremap(res->start, resource_size(res));
+ if (!mfd->sctl_regs) {
+ release_mem_region(res->start, resource_size(res));
+ return -ENOMEM;
+ }
+ sctl_regset.base = mfd->sctl_regs;
+ sta2x11_sctl_debugfs = debugfs_create_regset32("sta2x11-sctl",
+ S_IFREG | S_IRUGO,
+ NULL, &sctl_regset);
+ return 0;
+}
+
+static int sta2x11_apbreg_probe(struct platform_device *dev)
+{
+ struct pci_dev **pdev;
+ struct sta2x11_mfd *mfd;
+ struct resource *res;
+
+ pdev = dev->dev.platform_data;
+ dev_dbg(&dev->dev, "%s: pdata is %p\n", __func__, pdev);
+ dev_dbg(&dev->dev, "%s: *pdata is %p\n", __func__, *pdev);
+
+ mfd = sta2x11_mfd_find(*pdev);
+ if (!mfd)
+ return -ENODEV;
+
+ res = platform_get_resource(dev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENOMEM;
+
+ if (!request_mem_region(res->start, resource_size(res),
+ "sta2x11-apbreg"))
+ return -EBUSY;
+
+ mfd->apbreg_regs = ioremap(res->start, resource_size(res));
+ if (!mfd->apbreg_regs) {
+ release_mem_region(res->start, resource_size(res));
+ return -ENOMEM;
+ }
+ dev_dbg(&dev->dev, "%s: regbase %p\n", __func__, mfd->apbreg_regs);
+
+ apbreg_regset.base = mfd->apbreg_regs;
+ sta2x11_apbreg_debugfs = debugfs_create_regset32("sta2x11-apbreg",
+ S_IFREG | S_IRUGO,
+ NULL, &apbreg_regset);
+ return 0;
+}
+
+/* The two platform drivers */
+static struct platform_driver sta2x11_sctl_platform_driver = {
+ .driver = {
+ .name = "sta2x11-sctl",
+ .owner = THIS_MODULE,
+ },
+ .probe = sta2x11_sctl_probe,
+};
+
+static int __init sta2x11_sctl_init(void)
+{
+ pr_info("%s\n", __func__);
+ return platform_driver_register(&sta2x11_sctl_platform_driver);
+}
+
+static struct platform_driver sta2x11_platform_driver = {
+ .driver = {
+ .name = "sta2x11-apbreg",
+ .owner = THIS_MODULE,
+ },
+ .probe = sta2x11_apbreg_probe,
+};
+
+static int __init sta2x11_apbreg_init(void)
+{
+ pr_info("%s\n", __func__);
+ return platform_driver_register(&sta2x11_platform_driver);
+}
+
+/*
+ * What follows is the PCI device that hosts the above two pdevs.
+ * Each logic block is 4kB and they are all consecutive: we use this info.
+ */
+
+/* Bar 0 */
+enum bar0_cells {
+ STA2X11_GPIO_0 = 0,
+ STA2X11_GPIO_1,
+ STA2X11_GPIO_2,
+ STA2X11_GPIO_3,
+ STA2X11_SCTL,
+ STA2X11_SCR,
+ STA2X11_TIME,
+};
+/* Bar 1 */
+enum bar1_cells {
+ STA2X11_APBREG = 0,
+};
+#define CELL_4K(_name, _cell) { \
+ .name = _name, \
+ .start = _cell * 4096, .end = _cell * 4096 + 4095, \
+ .flags = IORESOURCE_MEM, \
+ }
+
+static const __devinitconst struct resource gpio_resources[] = {
+ {
+ .name = "sta2x11_gpio", /* 4 consecutive cells, 1 driver */
+ .start = 0,
+ .end = (4 * 4096) - 1,
+ .flags = IORESOURCE_MEM,
+ }
+};
+static const __devinitconst struct resource sctl_resources[] = {
+ CELL_4K("sta2x11-sctl", STA2X11_SCTL),
+};
+static const __devinitconst struct resource scr_resources[] = {
+ CELL_4K("sta2x11-scr", STA2X11_SCR),
+};
+static const __devinitconst struct resource time_resources[] = {
+ CELL_4K("sta2x11-time", STA2X11_TIME),
+};
+
+static const __devinitconst struct resource apbreg_resources[] = {
+ CELL_4K("sta2x11-apbreg", STA2X11_APBREG),
+};
+
+#define DEV(_name, _r) \
+ { .name = _name, .num_resources = ARRAY_SIZE(_r), .resources = _r, }
+
+static __devinitdata struct mfd_cell sta2x11_mfd_bar0[] = {
+ DEV("sta2x11-gpio", gpio_resources), /* offset 0: we add pdata later */
+ DEV("sta2x11-sctl", sctl_resources),
+ DEV("sta2x11-scr", scr_resources),
+ DEV("sta2x11-time", time_resources),
+};
+
+static __devinitdata struct mfd_cell sta2x11_mfd_bar1[] = {
+ DEV("sta2x11-apbreg", apbreg_resources),
+};
+
+static int sta2x11_mfd_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ pci_save_state(pdev);
+ pci_disable_device(pdev);
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
+
+ return 0;
+}
+
+static int sta2x11_mfd_resume(struct pci_dev *pdev)
+{
+ int err;
+
+ pci_set_power_state(pdev, 0);
+ err = pci_enable_device(pdev);
+ if (err)
+ return err;
+ pci_restore_state(pdev);
+
+ return 0;
+}
+
+static int __devinit sta2x11_mfd_probe(struct pci_dev *pdev,
+ const struct pci_device_id *pci_id)
+{
+ int err, i;
+ struct sta2x11_gpio_pdata *gpio_data;
+
+ dev_info(&pdev->dev, "%s\n", __func__);
+
+ err = pci_enable_device(pdev);
+ if (err) {
+ dev_err(&pdev->dev, "Can't enable device.\n");
+ return err;
+ }
+
+ err = pci_enable_msi(pdev);
+ if (err)
+ dev_info(&pdev->dev, "Enable msi failed\n");
+
+ /* Read gpio config data as pci device's platform data */
+ gpio_data = dev_get_platdata(&pdev->dev);
+ if (!gpio_data)
+ dev_warn(&pdev->dev, "no gpio configuration\n");
+
+ dev_dbg(&pdev->dev, "%s, gpio_data = %p (%p)\n", __func__,
+ gpio_data, &gpio_data);
+ dev_dbg(&pdev->dev, "%s, pdev = %p (%p)\n", __func__,
+ pdev, &pdev);
+
+ /* platform data is the pci device for all of them */
+ for (i = 0; i < ARRAY_SIZE(sta2x11_mfd_bar0); i++) {
+ sta2x11_mfd_bar0[i].pdata_size = sizeof(pdev);
+ sta2x11_mfd_bar0[i].platform_data = &pdev;
+ }
+ sta2x11_mfd_bar1[0].pdata_size = sizeof(pdev);
+ sta2x11_mfd_bar1[0].platform_data = &pdev;
+
+ /* Record this pdev before mfd_add_devices: their probe looks for it */
+ sta2x11_mfd_add(pdev, GFP_ATOMIC);
+
+
+ err = mfd_add_devices(&pdev->dev, -1,
+ sta2x11_mfd_bar0,
+ ARRAY_SIZE(sta2x11_mfd_bar0),
+ &pdev->resource[0],
+ 0);
+ if (err) {
+ dev_err(&pdev->dev, "mfd_add_devices[0] failed: %d\n", err);
+ goto err_disable;
+ }
+
+ err = mfd_add_devices(&pdev->dev, -1,
+ sta2x11_mfd_bar1,
+ ARRAY_SIZE(sta2x11_mfd_bar1),
+ &pdev->resource[1],
+ 0);
+ if (err) {
+ dev_err(&pdev->dev, "mfd_add_devices[1] failed: %d\n", err);
+ goto err_disable;
+ }
+
+ return 0;
+
+err_disable:
+ mfd_remove_devices(&pdev->dev);
+ pci_disable_device(pdev);
+ pci_disable_msi(pdev);
+ return err;
+}
+
+static DEFINE_PCI_DEVICE_TABLE(sta2x11_mfd_tbl) = {
+ {PCI_DEVICE(PCI_VENDOR_ID_STMICRO, PCI_DEVICE_ID_STMICRO_GPIO)},
+ {0,},
+};
+
+static struct pci_driver sta2x11_mfd_driver = {
+ .name = "sta2x11-mfd",
+ .id_table = sta2x11_mfd_tbl,
+ .probe = sta2x11_mfd_probe,
+ .suspend = sta2x11_mfd_suspend,
+ .resume = sta2x11_mfd_resume,
+};
+
+static int __init sta2x11_mfd_init(void)
+{
+ pr_info("%s\n", __func__);
+ return pci_register_driver(&sta2x11_mfd_driver);
+}
+
+/*
+ * All of this must be ready before "normal" devices like MMCI appear.
+ * But MFD (the pci device) can't be too early. The following choice
+ * prepares platform drivers very early and probe the PCI device later,
+ * but before other PCI devices.
+ */
+subsys_initcall(sta2x11_apbreg_init);
+subsys_initcall(sta2x11_sctl_init);
+rootfs_initcall(sta2x11_mfd_init);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Wind River");
+MODULE_DESCRIPTION("STA2x11 mfd for GPIO, SCTL and APBREG");
+MODULE_DEVICE_TABLE(pci, sta2x11_mfd_tbl);
static struct spi_driver stmpe_spi_driver = {
.driver = {
.name = "stmpe-spi",
- .bus = &spi_bus_type,
.owner = THIS_MODULE,
#ifdef CONFIG_PM
.pm = &stmpe_dev_pm_ops,
}
}
- tps65090->rmap = regmap_init_i2c(tps65090->client,
- &tps65090_regmap_config);
+ tps65090->rmap = devm_regmap_init_i2c(tps65090->client,
+ &tps65090_regmap_config);
if (IS_ERR(tps65090->rmap)) {
- dev_err(&client->dev, "regmap_init failed with err: %ld\n",
- PTR_ERR(tps65090->rmap));
+ ret = PTR_ERR(tps65090->rmap);
+ dev_err(&client->dev, "regmap_init failed with err: %d\n", ret);
goto err_irq_exit;
- };
+ }
ret = mfd_add_devices(tps65090->dev, -1, tps65090s,
ARRAY_SIZE(tps65090s), NULL, 0);
if (ret) {
dev_err(&client->dev, "add mfd devices failed with err: %d\n",
ret);
- goto err_regmap_exit;
+ goto err_irq_exit;
}
return 0;
-err_regmap_exit:
- regmap_exit(tps65090->rmap);
-
err_irq_exit:
if (client->irq)
free_irq(client->irq, tps65090);
struct tps65090 *tps65090 = i2c_get_clientdata(client);
mfd_remove_devices(tps65090->dev);
- regmap_exit(tps65090->rmap);
if (client->irq)
free_irq(client->irq, tps65090);
return 0;
}
-#ifdef CONFIG_PM
-static int tps65090_i2c_suspend(struct i2c_client *client, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int tps65090_suspend(struct device *dev)
{
+ struct i2c_client *client = to_i2c_client(dev);
if (client->irq)
disable_irq(client->irq);
return 0;
}
-static int tps65090_i2c_resume(struct i2c_client *client)
+static int tps65090_resume(struct device *dev)
{
+ struct i2c_client *client = to_i2c_client(dev);
if (client->irq)
enable_irq(client->irq);
return 0;
}
#endif
+static const struct dev_pm_ops tps65090_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(tps65090_suspend, tps65090_resume)
+};
+
static const struct i2c_device_id tps65090_id_table[] = {
{ "tps65090", 0 },
{ },
.driver = {
.name = "tps65090",
.owner = THIS_MODULE,
+ .pm = &tps65090_pm_ops,
},
.probe = tps65090_i2c_probe,
.remove = __devexit_p(tps65090_i2c_remove),
-#ifdef CONFIG_PM
- .suspend = tps65090_i2c_suspend,
- .resume = tps65090_i2c_resume,
-#endif
.id_table = tps65090_id_table,
};
* @val: Value to write.
* @level: Password protected level
*/
-int tps65217_update_bits(struct tps65217 *tps, unsigned int reg,
+static int tps65217_update_bits(struct tps65217 *tps, unsigned int reg,
unsigned int mask, unsigned int val, unsigned int level)
{
int ret;
return -ENOMEM;
tps->pdata = pdata;
- tps->regmap = regmap_init_i2c(client, &tps65217_regmap_config);
+ tps->regmap = devm_regmap_init_i2c(client, &tps65217_regmap_config);
if (IS_ERR(tps->regmap)) {
ret = PTR_ERR(tps->regmap);
dev_err(tps->dev, "Failed to allocate register map: %d\n",
ret = tps65217_reg_read(tps, TPS65217_REG_CHIPID, &version);
if (ret < 0) {
- dev_err(tps->dev, "Failed to read revision"
- " register: %d\n", ret);
- goto err_regmap;
+ dev_err(tps->dev, "Failed to read revision register: %d\n",
+ ret);
+ return ret;
}
dev_info(tps->dev, "TPS65217 ID %#x version 1.%d\n",
}
return 0;
-
-err_regmap:
- regmap_exit(tps->regmap);
-
- return ret;
}
static int __devexit tps65217_remove(struct i2c_client *client)
for (i = 0; i < TPS65217_NUM_REGULATOR; i++)
platform_device_unregister(tps->regulator_pdev[i]);
- regmap_exit(tps->regmap);
-
return 0;
}
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
+#include <linux/irqdomain.h>
#include <linux/gpio.h>
#include <linux/mfd/tps65910.h>
-static inline int irq_to_tps65910_irq(struct tps65910 *tps65910,
- int irq)
-{
- return (irq - tps65910->irq_base);
-}
-
/*
* This is a threaded IRQ handler so can access I2C/SPI. Since all
* interrupts are clear on read the IRQ line will be reasserted and
static irqreturn_t tps65910_irq(int irq, void *irq_data)
{
struct tps65910 *tps65910 = irq_data;
+ unsigned int reg;
u32 irq_sts;
u32 irq_mask;
- u8 reg;
int i;
- tps65910->read(tps65910, TPS65910_INT_STS, 1, ®);
+ tps65910_reg_read(tps65910, TPS65910_INT_STS, ®);
irq_sts = reg;
- tps65910->read(tps65910, TPS65910_INT_STS2, 1, ®);
+ tps65910_reg_read(tps65910, TPS65910_INT_STS2, ®);
irq_sts |= reg << 8;
switch (tps65910_chip_id(tps65910)) {
case TPS65911:
- tps65910->read(tps65910, TPS65910_INT_STS3, 1, ®);
+ tps65910_reg_read(tps65910, TPS65910_INT_STS3, ®);
irq_sts |= reg << 16;
}
- tps65910->read(tps65910, TPS65910_INT_MSK, 1, ®);
+ tps65910_reg_read(tps65910, TPS65910_INT_MSK, ®);
irq_mask = reg;
- tps65910->read(tps65910, TPS65910_INT_MSK2, 1, ®);
+ tps65910_reg_read(tps65910, TPS65910_INT_MSK2, ®);
irq_mask |= reg << 8;
switch (tps65910_chip_id(tps65910)) {
case TPS65911:
- tps65910->read(tps65910, TPS65910_INT_MSK3, 1, ®);
+ tps65910_reg_read(tps65910, TPS65910_INT_MSK3, ®);
irq_mask |= reg << 16;
}
if (!(irq_sts & (1 << i)))
continue;
- handle_nested_irq(tps65910->irq_base + i);
+ handle_nested_irq(irq_find_mapping(tps65910->domain, i));
}
/* Write the STS register back to clear IRQs we handled */
reg = irq_sts & 0xFF;
irq_sts >>= 8;
- tps65910->write(tps65910, TPS65910_INT_STS, 1, ®);
+ tps65910_reg_write(tps65910, TPS65910_INT_STS, reg);
reg = irq_sts & 0xFF;
- tps65910->write(tps65910, TPS65910_INT_STS2, 1, ®);
+ tps65910_reg_write(tps65910, TPS65910_INT_STS2, reg);
switch (tps65910_chip_id(tps65910)) {
case TPS65911:
reg = irq_sts >> 8;
- tps65910->write(tps65910, TPS65910_INT_STS3, 1, ®);
+ tps65910_reg_write(tps65910, TPS65910_INT_STS3, reg);
}
return IRQ_HANDLED;
{
struct tps65910 *tps65910 = irq_data_get_irq_chip_data(data);
u32 reg_mask;
- u8 reg;
+ unsigned int reg;
- tps65910->read(tps65910, TPS65910_INT_MSK, 1, ®);
+ tps65910_reg_read(tps65910, TPS65910_INT_MSK, ®);
reg_mask = reg;
- tps65910->read(tps65910, TPS65910_INT_MSK2, 1, ®);
+ tps65910_reg_read(tps65910, TPS65910_INT_MSK2, ®);
reg_mask |= reg << 8;
switch (tps65910_chip_id(tps65910)) {
case TPS65911:
- tps65910->read(tps65910, TPS65910_INT_MSK3, 1, ®);
+ tps65910_reg_read(tps65910, TPS65910_INT_MSK3, ®);
reg_mask |= reg << 16;
}
if (tps65910->irq_mask != reg_mask) {
reg = tps65910->irq_mask & 0xFF;
- tps65910->write(tps65910, TPS65910_INT_MSK, 1, ®);
+ tps65910_reg_write(tps65910, TPS65910_INT_MSK, reg);
reg = tps65910->irq_mask >> 8 & 0xFF;
- tps65910->write(tps65910, TPS65910_INT_MSK2, 1, ®);
+ tps65910_reg_write(tps65910, TPS65910_INT_MSK2, reg);
switch (tps65910_chip_id(tps65910)) {
case TPS65911:
reg = tps65910->irq_mask >> 16;
- tps65910->write(tps65910, TPS65910_INT_MSK3, 1, ®);
+ tps65910_reg_write(tps65910, TPS65910_INT_MSK3, reg);
}
}
mutex_unlock(&tps65910->irq_lock);
{
struct tps65910 *tps65910 = irq_data_get_irq_chip_data(data);
- tps65910->irq_mask &= ~( 1 << irq_to_tps65910_irq(tps65910, data->irq));
+ tps65910->irq_mask &= ~(1 << data->hwirq);
}
static void tps65910_irq_disable(struct irq_data *data)
{
struct tps65910 *tps65910 = irq_data_get_irq_chip_data(data);
- tps65910->irq_mask |= ( 1 << irq_to_tps65910_irq(tps65910, data->irq));
+ tps65910->irq_mask |= (1 << data->hwirq);
}
#ifdef CONFIG_PM_SLEEP
.irq_set_wake = tps65910_irq_set_wake,
};
+static int tps65910_irq_map(struct irq_domain *h, unsigned int virq,
+ irq_hw_number_t hw)
+{
+ struct tps65910 *tps65910 = h->host_data;
+
+ irq_set_chip_data(virq, tps65910);
+ irq_set_chip_and_handler(virq, &tps65910_irq_chip, handle_edge_irq);
+ irq_set_nested_thread(virq, 1);
+
+ /* ARM needs us to explicitly flag the IRQ as valid
+ * and will set them noprobe when we do so. */
+#ifdef CONFIG_ARM
+ set_irq_flags(virq, IRQF_VALID);
+#else
+ irq_set_noprobe(virq);
+#endif
+
+ return 0;
+}
+
+static struct irq_domain_ops tps65910_domain_ops = {
+ .map = tps65910_irq_map,
+ .xlate = irq_domain_xlate_twocell,
+};
+
int tps65910_irq_init(struct tps65910 *tps65910, int irq,
struct tps65910_platform_data *pdata)
{
- int ret, cur_irq;
+ int ret;
int flags = IRQF_ONESHOT;
if (!irq) {
return -EINVAL;
}
- if (!pdata || !pdata->irq_base) {
- dev_warn(tps65910->dev, "No interrupt support, no IRQ base\n");
+ if (!pdata) {
+ dev_warn(tps65910->dev, "No interrupt support, no pdata\n");
return -EINVAL;
}
- tps65910->irq_mask = 0xFFFFFF;
-
- mutex_init(&tps65910->irq_lock);
- tps65910->chip_irq = irq;
- tps65910->irq_base = pdata->irq_base;
-
switch (tps65910_chip_id(tps65910)) {
case TPS65910:
tps65910->irq_num = TPS65910_NUM_IRQ;
break;
}
- /* Register with genirq */
- for (cur_irq = tps65910->irq_base;
- cur_irq < tps65910->irq_num + tps65910->irq_base;
- cur_irq++) {
- irq_set_chip_data(cur_irq, tps65910);
- irq_set_chip_and_handler(cur_irq, &tps65910_irq_chip,
- handle_edge_irq);
- irq_set_nested_thread(cur_irq, 1);
-
- /* ARM needs us to explicitly flag the IRQ as valid
- * and will set them noprobe when we do so. */
-#ifdef CONFIG_ARM
- set_irq_flags(cur_irq, IRQF_VALID);
-#else
- irq_set_noprobe(cur_irq);
-#endif
+ if (pdata->irq_base > 0) {
+ pdata->irq_base = irq_alloc_descs(pdata->irq_base, 0,
+ tps65910->irq_num, -1);
+ if (pdata->irq_base < 0) {
+ dev_warn(tps65910->dev, "Failed to alloc IRQs: %d\n",
+ pdata->irq_base);
+ return pdata->irq_base;
+ }
+ }
+
+ tps65910->irq_mask = 0xFFFFFF;
+
+ mutex_init(&tps65910->irq_lock);
+ tps65910->chip_irq = irq;
+ tps65910->irq_base = pdata->irq_base;
+
+ if (pdata->irq_base > 0)
+ tps65910->domain = irq_domain_add_legacy(tps65910->dev->of_node,
+ tps65910->irq_num,
+ pdata->irq_base,
+ 0,
+ &tps65910_domain_ops, tps65910);
+ else
+ tps65910->domain = irq_domain_add_linear(tps65910->dev->of_node,
+ tps65910->irq_num,
+ &tps65910_domain_ops, tps65910);
+
+ if (!tps65910->domain) {
+ dev_err(tps65910->dev, "Failed to create IRQ domain\n");
+ return -ENOMEM;
}
ret = request_threaded_irq(irq, NULL, tps65910_irq, flags,
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/i2c.h>
-#include <linux/gpio.h>
#include <linux/mfd/core.h>
#include <linux/regmap.h>
#include <linux/mfd/tps65910.h>
+#include <linux/of_device.h>
static struct mfd_cell tps65910s[] = {
+ {
+ .name = "tps65910-gpio",
+ },
{
.name = "tps65910-pmic",
},
};
-static int tps65910_i2c_read(struct tps65910 *tps65910, u8 reg,
- int bytes, void *dest)
-{
- return regmap_bulk_read(tps65910->regmap, reg, dest, bytes);
-}
-
-static int tps65910_i2c_write(struct tps65910 *tps65910, u8 reg,
- int bytes, void *src)
-{
- return regmap_bulk_write(tps65910->regmap, reg, src, bytes);
-}
-
-int tps65910_set_bits(struct tps65910 *tps65910, u8 reg, u8 mask)
-{
- return regmap_update_bits(tps65910->regmap, reg, mask, mask);
-}
-EXPORT_SYMBOL_GPL(tps65910_set_bits);
-
-int tps65910_clear_bits(struct tps65910 *tps65910, u8 reg, u8 mask)
-{
- return regmap_update_bits(tps65910->regmap, reg, mask, 0);
-}
-EXPORT_SYMBOL_GPL(tps65910_clear_bits);
-
static bool is_volatile_reg(struct device *dev, unsigned int reg)
{
struct tps65910 *tps65910 = dev_get_drvdata(dev);
.reg_bits = 8,
.val_bits = 8,
.volatile_reg = is_volatile_reg,
- .max_register = TPS65910_MAX_REGISTER,
- .num_reg_defaults_raw = TPS65910_MAX_REGISTER,
+ .max_register = TPS65910_MAX_REGISTER - 1,
.cache_type = REGCACHE_RBTREE,
};
-static int tps65910_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+static int __devinit tps65910_sleepinit(struct tps65910 *tps65910,
+ struct tps65910_board *pmic_pdata)
+{
+ struct device *dev = NULL;
+ int ret = 0;
+
+ dev = tps65910->dev;
+
+ if (!pmic_pdata->en_dev_slp)
+ return 0;
+
+ /* enabling SLEEP device state */
+ ret = tps65910_reg_set_bits(tps65910, TPS65910_DEVCTRL,
+ DEVCTRL_DEV_SLP_MASK);
+ if (ret < 0) {
+ dev_err(dev, "set dev_slp failed: %d\n", ret);
+ goto err_sleep_init;
+ }
+
+ /* Return if there is no sleep keepon data. */
+ if (!pmic_pdata->slp_keepon)
+ return 0;
+
+ if (pmic_pdata->slp_keepon->therm_keepon) {
+ ret = tps65910_reg_set_bits(tps65910,
+ TPS65910_SLEEP_KEEP_RES_ON,
+ SLEEP_KEEP_RES_ON_THERM_KEEPON_MASK);
+ if (ret < 0) {
+ dev_err(dev, "set therm_keepon failed: %d\n", ret);
+ goto disable_dev_slp;
+ }
+ }
+
+ if (pmic_pdata->slp_keepon->clkout32k_keepon) {
+ ret = tps65910_reg_set_bits(tps65910,
+ TPS65910_SLEEP_KEEP_RES_ON,
+ SLEEP_KEEP_RES_ON_CLKOUT32K_KEEPON_MASK);
+ if (ret < 0) {
+ dev_err(dev, "set clkout32k_keepon failed: %d\n", ret);
+ goto disable_dev_slp;
+ }
+ }
+
+ if (pmic_pdata->slp_keepon->i2chs_keepon) {
+ ret = tps65910_reg_set_bits(tps65910,
+ TPS65910_SLEEP_KEEP_RES_ON,
+ SLEEP_KEEP_RES_ON_I2CHS_KEEPON_MASK);
+ if (ret < 0) {
+ dev_err(dev, "set i2chs_keepon failed: %d\n", ret);
+ goto disable_dev_slp;
+ }
+ }
+
+ return 0;
+
+disable_dev_slp:
+ tps65910_reg_clear_bits(tps65910, TPS65910_DEVCTRL,
+ DEVCTRL_DEV_SLP_MASK);
+
+err_sleep_init:
+ return ret;
+}
+
+#ifdef CONFIG_OF
+static struct of_device_id tps65910_of_match[] = {
+ { .compatible = "ti,tps65910", .data = (void *)TPS65910},
+ { .compatible = "ti,tps65911", .data = (void *)TPS65911},
+ { },
+};
+MODULE_DEVICE_TABLE(of, tps65910_of_match);
+
+static struct tps65910_board *tps65910_parse_dt(struct i2c_client *client,
+ int *chip_id)
+{
+ struct device_node *np = client->dev.of_node;
+ struct tps65910_board *board_info;
+ unsigned int prop;
+ const struct of_device_id *match;
+ int ret = 0;
+
+ match = of_match_device(tps65910_of_match, &client->dev);
+ if (!match) {
+ dev_err(&client->dev, "Failed to find matching dt id\n");
+ return NULL;
+ }
+
+ *chip_id = (int)match->data;
+
+ board_info = devm_kzalloc(&client->dev, sizeof(*board_info),
+ GFP_KERNEL);
+ if (!board_info) {
+ dev_err(&client->dev, "Failed to allocate pdata\n");
+ return NULL;
+ }
+
+ ret = of_property_read_u32(np, "ti,vmbch-threshold", &prop);
+ if (!ret)
+ board_info->vmbch_threshold = prop;
+ else if (*chip_id == TPS65911)
+ dev_warn(&client->dev, "VMBCH-Threshold not specified");
+
+ ret = of_property_read_u32(np, "ti,vmbch2-threshold", &prop);
+ if (!ret)
+ board_info->vmbch2_threshold = prop;
+ else if (*chip_id == TPS65911)
+ dev_warn(&client->dev, "VMBCH2-Threshold not specified");
+
+ board_info->irq = client->irq;
+ board_info->irq_base = -1;
+
+ return board_info;
+}
+#else
+static inline
+struct tps65910_board *tps65910_parse_dt(struct i2c_client *client,
+ int *chip_id)
+{
+ return NULL;
+}
+#endif
+
+static __devinit int tps65910_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
{
struct tps65910 *tps65910;
struct tps65910_board *pmic_plat_data;
+ struct tps65910_board *of_pmic_plat_data = NULL;
struct tps65910_platform_data *init_data;
int ret = 0;
+ int chip_id = id->driver_data;
pmic_plat_data = dev_get_platdata(&i2c->dev);
+
+ if (!pmic_plat_data && i2c->dev.of_node) {
+ pmic_plat_data = tps65910_parse_dt(i2c, &chip_id);
+ of_pmic_plat_data = pmic_plat_data;
+ }
+
if (!pmic_plat_data)
return -EINVAL;
- init_data = kzalloc(sizeof(struct tps65910_platform_data), GFP_KERNEL);
+ init_data = devm_kzalloc(&i2c->dev, sizeof(*init_data), GFP_KERNEL);
if (init_data == NULL)
return -ENOMEM;
- tps65910 = kzalloc(sizeof(struct tps65910), GFP_KERNEL);
- if (tps65910 == NULL) {
- kfree(init_data);
+ tps65910 = devm_kzalloc(&i2c->dev, sizeof(*tps65910), GFP_KERNEL);
+ if (tps65910 == NULL)
return -ENOMEM;
- }
+ tps65910->of_plat_data = of_pmic_plat_data;
i2c_set_clientdata(i2c, tps65910);
tps65910->dev = &i2c->dev;
tps65910->i2c_client = i2c;
- tps65910->id = id->driver_data;
- tps65910->read = tps65910_i2c_read;
- tps65910->write = tps65910_i2c_write;
+ tps65910->id = chip_id;
mutex_init(&tps65910->io_mutex);
- tps65910->regmap = regmap_init_i2c(i2c, &tps65910_regmap_config);
+ tps65910->regmap = devm_regmap_init_i2c(i2c, &tps65910_regmap_config);
if (IS_ERR(tps65910->regmap)) {
ret = PTR_ERR(tps65910->regmap);
dev_err(&i2c->dev, "regmap initialization failed: %d\n", ret);
- goto regmap_err;
+ return ret;
}
ret = mfd_add_devices(tps65910->dev, -1,
tps65910s, ARRAY_SIZE(tps65910s),
NULL, 0);
- if (ret < 0)
- goto err;
+ if (ret < 0) {
+ dev_err(&i2c->dev, "mfd_add_devices failed: %d\n", ret);
+ return ret;
+ }
init_data->irq = pmic_plat_data->irq;
init_data->irq_base = pmic_plat_data->irq_base;
- tps65910_gpio_init(tps65910, pmic_plat_data->gpio_base);
-
tps65910_irq_init(tps65910, init_data->irq, init_data);
- kfree(init_data);
- return ret;
+ tps65910_sleepinit(tps65910, pmic_plat_data);
-err:
- regmap_exit(tps65910->regmap);
-regmap_err:
- kfree(tps65910);
- kfree(init_data);
return ret;
}
-static int tps65910_i2c_remove(struct i2c_client *i2c)
+static __devexit int tps65910_i2c_remove(struct i2c_client *i2c)
{
struct tps65910 *tps65910 = i2c_get_clientdata(i2c);
tps65910_irq_exit(tps65910);
mfd_remove_devices(tps65910->dev);
- regmap_exit(tps65910->regmap);
- kfree(tps65910);
return 0;
}
.driver = {
.name = "tps65910",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(tps65910_of_match),
},
.probe = tps65910_i2c_probe,
- .remove = tps65910_i2c_remove,
+ .remove = __devexit_p(tps65910_i2c_remove),
.id_table = tps65910_i2c_id,
};
dev_err(dev, "could not claim irq%d: %d\n", irq_num, status);
goto fail_rqirq;
}
+ enable_irq_wake(irq_num);
return irq_base;
fail_rqirq:
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/kernel.h>
+#include <linux/err.h>
#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_gpio.h>
+#include <linux/of_platform.h>
#include <linux/gpio.h>
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/err.h>
#include <linux/mfd/core.h>
#include <linux/mfd/twl6040.h>
+#include <linux/regulator/consumer.h>
#define VIBRACTRL_MEMBER(reg) ((reg == TWL6040_REG_VIBCTLL) ? 0 : 1)
+#define TWL6040_NUM_SUPPLIES (2)
+
+static bool twl6040_has_vibra(struct twl6040_platform_data *pdata,
+ struct device_node *node)
+{
+ if (pdata && pdata->vibra)
+ return true;
+
+#ifdef CONFIG_OF
+ if (of_find_node_by_name(node, "vibra"))
+ return true;
+#endif
+
+ return false;
+}
int twl6040_reg_read(struct twl6040 *twl6040, unsigned int reg)
{
const struct i2c_device_id *id)
{
struct twl6040_platform_data *pdata = client->dev.platform_data;
+ struct device_node *node = client->dev.of_node;
struct twl6040 *twl6040;
struct mfd_cell *cell = NULL;
- int ret, children = 0;
+ int irq, ret, children = 0;
- if (!pdata) {
+ if (!pdata && !node) {
dev_err(&client->dev, "Platform data is missing\n");
return -EINVAL;
}
/* In order to operate correctly we need valid interrupt config */
- if (!client->irq || !pdata->irq_base) {
+ if (!client->irq) {
dev_err(&client->dev, "Invalid IRQ configuration\n");
return -EINVAL;
}
goto err;
}
- twl6040->regmap = regmap_init_i2c(client, &twl6040_regmap_config);
+ twl6040->regmap = devm_regmap_init_i2c(client, &twl6040_regmap_config);
if (IS_ERR(twl6040->regmap)) {
ret = PTR_ERR(twl6040->regmap);
goto err;
i2c_set_clientdata(client, twl6040);
+ twl6040->supplies[0].supply = "vio";
+ twl6040->supplies[1].supply = "v2v1";
+ ret = regulator_bulk_get(&client->dev, TWL6040_NUM_SUPPLIES,
+ twl6040->supplies);
+ if (ret != 0) {
+ dev_err(&client->dev, "Failed to get supplies: %d\n", ret);
+ goto regulator_get_err;
+ }
+
+ ret = regulator_bulk_enable(TWL6040_NUM_SUPPLIES, twl6040->supplies);
+ if (ret != 0) {
+ dev_err(&client->dev, "Failed to enable supplies: %d\n", ret);
+ goto power_err;
+ }
+
twl6040->dev = &client->dev;
twl6040->irq = client->irq;
- twl6040->irq_base = pdata->irq_base;
mutex_init(&twl6040->mutex);
mutex_init(&twl6040->io_mutex);
twl6040->rev = twl6040_reg_read(twl6040, TWL6040_REG_ASICREV);
/* ERRATA: Automatic power-up is not possible in ES1.0 */
- if (twl6040_get_revid(twl6040) > TWL6040_REV_ES1_0)
- twl6040->audpwron = pdata->audpwron_gpio;
- else
+ if (twl6040_get_revid(twl6040) > TWL6040_REV_ES1_0) {
+ if (pdata)
+ twl6040->audpwron = pdata->audpwron_gpio;
+ else
+ twl6040->audpwron = of_get_named_gpio(node,
+ "ti,audpwron-gpio", 0);
+ } else
twl6040->audpwron = -EINVAL;
if (gpio_is_valid(twl6040->audpwron)) {
ret = gpio_request_one(twl6040->audpwron, GPIOF_OUT_INIT_LOW,
"audpwron");
if (ret)
- goto gpio1_err;
+ goto gpio_err;
}
/* codec interrupt */
ret = twl6040_irq_init(twl6040);
if (ret)
- goto gpio2_err;
+ goto irq_init_err;
ret = request_threaded_irq(twl6040->irq_base + TWL6040_IRQ_READY,
NULL, twl6040_naudint_handler, 0,
/* dual-access registers controlled by I2C only */
twl6040_set_bits(twl6040, TWL6040_REG_ACCCTL, TWL6040_I2CSEL);
- if (pdata->codec) {
- int irq = twl6040->irq_base + TWL6040_IRQ_PLUG;
-
- cell = &twl6040->cells[children];
- cell->name = "twl6040-codec";
- twl6040_codec_rsrc[0].start = irq;
- twl6040_codec_rsrc[0].end = irq;
- cell->resources = twl6040_codec_rsrc;
- cell->num_resources = ARRAY_SIZE(twl6040_codec_rsrc);
+ /*
+ * The main functionality of twl6040 to provide audio on OMAP4+ systems.
+ * We can add the ASoC codec child whenever this driver has been loaded.
+ * The ASoC codec can work without pdata, pass the platform_data only if
+ * it has been provided.
+ */
+ irq = twl6040->irq_base + TWL6040_IRQ_PLUG;
+ cell = &twl6040->cells[children];
+ cell->name = "twl6040-codec";
+ twl6040_codec_rsrc[0].start = irq;
+ twl6040_codec_rsrc[0].end = irq;
+ cell->resources = twl6040_codec_rsrc;
+ cell->num_resources = ARRAY_SIZE(twl6040_codec_rsrc);
+ if (pdata && pdata->codec) {
cell->platform_data = pdata->codec;
cell->pdata_size = sizeof(*pdata->codec);
- children++;
}
+ children++;
- if (pdata->vibra) {
- int irq = twl6040->irq_base + TWL6040_IRQ_VIB;
+ if (twl6040_has_vibra(pdata, node)) {
+ irq = twl6040->irq_base + TWL6040_IRQ_VIB;
cell = &twl6040->cells[children];
cell->name = "twl6040-vibra";
cell->resources = twl6040_vibra_rsrc;
cell->num_resources = ARRAY_SIZE(twl6040_vibra_rsrc);
- cell->platform_data = pdata->vibra;
- cell->pdata_size = sizeof(*pdata->vibra);
+ if (pdata && pdata->vibra) {
+ cell->platform_data = pdata->vibra;
+ cell->pdata_size = sizeof(*pdata->vibra);
+ }
children++;
}
- if (children) {
- ret = mfd_add_devices(&client->dev, -1, twl6040->cells,
- children, NULL, 0);
- if (ret)
- goto mfd_err;
- } else {
- dev_err(&client->dev, "No platform data found for children\n");
- ret = -ENODEV;
+ ret = mfd_add_devices(&client->dev, -1, twl6040->cells, children,
+ NULL, 0);
+ if (ret)
goto mfd_err;
- }
return 0;
free_irq(twl6040->irq_base + TWL6040_IRQ_READY, twl6040);
irq_err:
twl6040_irq_exit(twl6040);
-gpio2_err:
+irq_init_err:
if (gpio_is_valid(twl6040->audpwron))
gpio_free(twl6040->audpwron);
-gpio1_err:
+gpio_err:
+ regulator_bulk_disable(TWL6040_NUM_SUPPLIES, twl6040->supplies);
+power_err:
+ regulator_bulk_free(TWL6040_NUM_SUPPLIES, twl6040->supplies);
+regulator_get_err:
i2c_set_clientdata(client, NULL);
- regmap_exit(twl6040->regmap);
err:
return ret;
}
mfd_remove_devices(&client->dev);
i2c_set_clientdata(client, NULL);
- regmap_exit(twl6040->regmap);
+
+ regulator_bulk_disable(TWL6040_NUM_SUPPLIES, twl6040->supplies);
+ regulator_bulk_free(TWL6040_NUM_SUPPLIES, twl6040->supplies);
return 0;
}
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/err.h>
#include <linux/irq.h>
+#include <linux/of.h>
+#include <linux/irqdomain.h>
#include <linux/interrupt.h>
#include <linux/mfd/core.h>
#include <linux/mfd/twl6040.h>
int twl6040_irq_init(struct twl6040 *twl6040)
{
- int cur_irq, ret;
+ struct device_node *node = twl6040->dev->of_node;
+ int i, nr_irqs, irq_base, ret;
u8 val;
mutex_init(&twl6040->irq_mutex);
twl6040->irq_masks_cache = TWL6040_ALLINT_MSK;
twl6040_reg_write(twl6040, TWL6040_REG_INTMR, TWL6040_ALLINT_MSK);
+ nr_irqs = ARRAY_SIZE(twl6040_irqs);
+
+ irq_base = irq_alloc_descs(-1, 0, nr_irqs, 0);
+ if (IS_ERR_VALUE(irq_base)) {
+ dev_err(twl6040->dev, "Fail to allocate IRQ descs\n");
+ return irq_base;
+ }
+ twl6040->irq_base = irq_base;
+
+ irq_domain_add_legacy(node, ARRAY_SIZE(twl6040_irqs), irq_base, 0,
+ &irq_domain_simple_ops, NULL);
+
/* Register them with genirq */
- for (cur_irq = twl6040->irq_base;
- cur_irq < twl6040->irq_base + ARRAY_SIZE(twl6040_irqs);
- cur_irq++) {
- irq_set_chip_data(cur_irq, twl6040);
- irq_set_chip_and_handler(cur_irq, &twl6040_irq_chip,
+ for (i = irq_base; i < irq_base + nr_irqs; i++) {
+ irq_set_chip_data(i, twl6040);
+ irq_set_chip_and_handler(i, &twl6040_irq_chip,
handle_level_irq);
- irq_set_nested_thread(cur_irq, 1);
+ irq_set_nested_thread(i, 1);
/* ARM needs us to explicitly flag the IRQ as valid
* and will set them noprobe when we do so. */
#ifdef CONFIG_ARM
- set_irq_flags(cur_irq, IRQF_VALID);
+ set_irq_flags(i, IRQF_VALID);
#else
- irq_set_noprobe(cur_irq);
+ irq_set_noprobe(i);
#endif
}
.remove = __devexit_p(vx855_remove),
};
-static int vx855_init(void)
-{
- return pci_register_driver(&vx855_pci_driver);
-}
-module_init(vx855_init);
-
-static void vx855_exit(void)
-{
- pci_unregister_driver(&vx855_pci_driver);
-}
-module_exit(vx855_exit);
+module_pci_driver(vx855_pci_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Harald Welte <HaraldWelte@viatech.com>");
mutex_init(&wm831x->auxadc_lock);
INIT_LIST_HEAD(&wm831x->auxadc_pending);
- if (wm831x->irq && wm831x->irq_base) {
+ if (wm831x->irq) {
wm831x->auxadc_read = wm831x_auxadc_read_irq;
- ret = request_threaded_irq(wm831x->irq_base +
- WM831X_IRQ_AUXADC_DATA,
+ ret = request_threaded_irq(wm831x_irq(wm831x,
+ WM831X_IRQ_AUXADC_DATA),
NULL, wm831x_auxadc_irq, 0,
"auxadc", wm831x);
if (ret < 0) {
}
EXPORT_SYMBOL_GPL(wm831x_set_bits);
+static struct resource wm831x_io_parent = {
+ .start = 0,
+ .end = 0xffffffff,
+ .flags = IORESOURCE_IO,
+};
+
static struct resource wm831x_dcdc1_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_DC1_CONTROL_1,
.end = WM831X_DC1_DVS_CONTROL,
.flags = IORESOURCE_IO,
static struct resource wm831x_dcdc2_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_DC2_CONTROL_1,
.end = WM831X_DC2_DVS_CONTROL,
.flags = IORESOURCE_IO,
static struct resource wm831x_dcdc3_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_DC3_CONTROL_1,
.end = WM831X_DC3_SLEEP_CONTROL,
.flags = IORESOURCE_IO,
static struct resource wm831x_dcdc4_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_DC4_CONTROL,
.end = WM831X_DC4_SLEEP_CONTROL,
.flags = IORESOURCE_IO,
static struct resource wm8320_dcdc4_buck_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_DC4_CONTROL,
.end = WM832X_DC4_SLEEP_CONTROL,
.flags = IORESOURCE_IO,
static struct resource wm831x_isink1_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_CURRENT_SINK_1,
.end = WM831X_CURRENT_SINK_1,
.flags = IORESOURCE_IO,
static struct resource wm831x_isink2_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_CURRENT_SINK_2,
.end = WM831X_CURRENT_SINK_2,
.flags = IORESOURCE_IO,
static struct resource wm831x_ldo1_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_LDO1_CONTROL,
.end = WM831X_LDO1_SLEEP_CONTROL,
.flags = IORESOURCE_IO,
static struct resource wm831x_ldo2_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_LDO2_CONTROL,
.end = WM831X_LDO2_SLEEP_CONTROL,
.flags = IORESOURCE_IO,
static struct resource wm831x_ldo3_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_LDO3_CONTROL,
.end = WM831X_LDO3_SLEEP_CONTROL,
.flags = IORESOURCE_IO,
static struct resource wm831x_ldo4_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_LDO4_CONTROL,
.end = WM831X_LDO4_SLEEP_CONTROL,
.flags = IORESOURCE_IO,
static struct resource wm831x_ldo5_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_LDO5_CONTROL,
.end = WM831X_LDO5_SLEEP_CONTROL,
.flags = IORESOURCE_IO,
static struct resource wm831x_ldo6_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_LDO6_CONTROL,
.end = WM831X_LDO6_SLEEP_CONTROL,
.flags = IORESOURCE_IO,
static struct resource wm831x_ldo7_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_LDO7_CONTROL,
.end = WM831X_LDO7_SLEEP_CONTROL,
.flags = IORESOURCE_IO,
static struct resource wm831x_ldo8_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_LDO8_CONTROL,
.end = WM831X_LDO8_SLEEP_CONTROL,
.flags = IORESOURCE_IO,
static struct resource wm831x_ldo9_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_LDO9_CONTROL,
.end = WM831X_LDO9_SLEEP_CONTROL,
.flags = IORESOURCE_IO,
static struct resource wm831x_ldo10_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_LDO10_CONTROL,
.end = WM831X_LDO10_SLEEP_CONTROL,
.flags = IORESOURCE_IO,
static struct resource wm831x_ldo11_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_LDO11_ON_CONTROL,
.end = WM831X_LDO11_SLEEP_CONTROL,
.flags = IORESOURCE_IO,
static struct resource wm831x_status1_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_STATUS_LED_1,
.end = WM831X_STATUS_LED_1,
.flags = IORESOURCE_IO,
static struct resource wm831x_status2_resources[] = {
{
+ .parent = &wm831x_io_parent,
.start = WM831X_STATUS_LED_2,
.end = WM831X_STATUS_LED_2,
.flags = IORESOURCE_IO,
case WM8310:
ret = mfd_add_devices(wm831x->dev, wm831x_num,
wm8310_devs, ARRAY_SIZE(wm8310_devs),
- NULL, wm831x->irq_base);
+ NULL, 0);
break;
case WM8311:
ret = mfd_add_devices(wm831x->dev, wm831x_num,
wm8311_devs, ARRAY_SIZE(wm8311_devs),
- NULL, wm831x->irq_base);
+ NULL, 0);
if (!pdata || !pdata->disable_touch)
mfd_add_devices(wm831x->dev, wm831x_num,
touch_devs, ARRAY_SIZE(touch_devs),
- NULL, wm831x->irq_base);
+ NULL, 0);
break;
case WM8312:
ret = mfd_add_devices(wm831x->dev, wm831x_num,
wm8312_devs, ARRAY_SIZE(wm8312_devs),
- NULL, wm831x->irq_base);
+ NULL, 0);
if (!pdata || !pdata->disable_touch)
mfd_add_devices(wm831x->dev, wm831x_num,
touch_devs, ARRAY_SIZE(touch_devs),
- NULL, wm831x->irq_base);
+ NULL, 0);
break;
case WM8320:
case WM8326:
ret = mfd_add_devices(wm831x->dev, wm831x_num,
wm8320_devs, ARRAY_SIZE(wm8320_devs),
- NULL, wm831x->irq_base);
+ NULL, 0);
break;
default:
if (ret & WM831X_XTAL_ENA) {
ret = mfd_add_devices(wm831x->dev, wm831x_num,
rtc_devs, ARRAY_SIZE(rtc_devs),
- NULL, wm831x->irq_base);
+ NULL, 0);
if (ret != 0) {
dev_err(wm831x->dev, "Failed to add RTC: %d\n", ret);
goto err_irq;
/* Treat errors as non-critical */
ret = mfd_add_devices(wm831x->dev, wm831x_num, backlight_devs,
ARRAY_SIZE(backlight_devs), NULL,
- wm831x->irq_base);
+ 0);
if (ret < 0)
dev_err(wm831x->dev, "Failed to add backlight: %d\n",
ret);
{
wm831x_otp_exit(wm831x);
mfd_remove_devices(wm831x->dev);
- if (wm831x->irq_base)
- free_irq(wm831x->irq_base + WM831X_IRQ_AUXADC_DATA, wm831x);
+ free_irq(wm831x_irq(wm831x, WM831X_IRQ_AUXADC_DATA), wm831x);
wm831x_irq_exit(wm831x);
}
#include <linux/irq.h>
#include <linux/mfd/core.h>
#include <linux/interrupt.h>
+#include <linux/irqdomain.h>
#include <linux/mfd/wm831x/core.h>
#include <linux/mfd/wm831x/pdata.h>
static inline struct wm831x_irq_data *irq_to_wm831x_irq(struct wm831x *wm831x,
int irq)
{
- return &wm831x_irqs[irq - wm831x->irq_base];
+ return &wm831x_irqs[irq];
}
static void wm831x_irq_lock(struct irq_data *data)
{
struct wm831x *wm831x = irq_data_get_irq_chip_data(data);
struct wm831x_irq_data *irq_data = irq_to_wm831x_irq(wm831x,
- data->irq);
+ data->hwirq);
wm831x->irq_masks_cur[irq_data->reg - 1] &= ~irq_data->mask;
}
{
struct wm831x *wm831x = irq_data_get_irq_chip_data(data);
struct wm831x_irq_data *irq_data = irq_to_wm831x_irq(wm831x,
- data->irq);
+ data->hwirq);
wm831x->irq_masks_cur[irq_data->reg - 1] |= irq_data->mask;
}
struct wm831x *wm831x = irq_data_get_irq_chip_data(data);
int irq;
- irq = data->irq - wm831x->irq_base;
+ irq = data->hwirq;
if (irq < WM831X_IRQ_GPIO_1 || irq > WM831X_IRQ_GPIO_11) {
/* Ignore internal-only IRQs */
* do the update here as we can be called with the bus lock
* held.
*/
+ wm831x->gpio_level_low[irq] = false;
+ wm831x->gpio_level_high[irq] = false;
switch (type) {
case IRQ_TYPE_EDGE_BOTH:
wm831x->gpio_update[irq] = 0x10000 | WM831X_GPN_INT_MODE;
- wm831x->gpio_level[irq] = false;
break;
case IRQ_TYPE_EDGE_RISING:
wm831x->gpio_update[irq] = 0x10000 | WM831X_GPN_POL;
- wm831x->gpio_level[irq] = false;
break;
case IRQ_TYPE_EDGE_FALLING:
wm831x->gpio_update[irq] = 0x10000;
- wm831x->gpio_level[irq] = false;
break;
case IRQ_TYPE_LEVEL_HIGH:
wm831x->gpio_update[irq] = 0x10000 | WM831X_GPN_POL;
- wm831x->gpio_level[irq] = true;
+ wm831x->gpio_level_high[irq] = true;
+ break;
+ case IRQ_TYPE_LEVEL_LOW:
+ wm831x->gpio_update[irq] = 0x10000;
+ wm831x->gpio_level_low[irq] = true;
break;
default:
return -EINVAL;
* descriptors.
*/
if (primary & WM831X_TCHPD_INT)
- handle_nested_irq(wm831x->irq_base + WM831X_IRQ_TCHPD);
+ handle_nested_irq(irq_find_mapping(wm831x->irq_domain,
+ WM831X_IRQ_TCHPD));
if (primary & WM831X_TCHDATA_INT)
- handle_nested_irq(wm831x->irq_base + WM831X_IRQ_TCHDATA);
+ handle_nested_irq(irq_find_mapping(wm831x->irq_domain,
+ WM831X_IRQ_TCHDATA));
primary &= ~(WM831X_TCHDATA_EINT | WM831X_TCHPD_EINT);
for (i = 0; i < ARRAY_SIZE(wm831x_irqs); i++) {
}
if (*status & wm831x_irqs[i].mask)
- handle_nested_irq(wm831x->irq_base + i);
+ handle_nested_irq(irq_find_mapping(wm831x->irq_domain,
+ i));
/* Simulate an edge triggered IRQ by polling the input
* status. This is sucky but improves interoperability.
*/
if (primary == WM831X_GP_INT &&
- wm831x->gpio_level[i - WM831X_IRQ_GPIO_1]) {
+ wm831x->gpio_level_high[i - WM831X_IRQ_GPIO_1]) {
ret = wm831x_reg_read(wm831x, WM831X_GPIO_LEVEL);
while (ret & 1 << (i - WM831X_IRQ_GPIO_1)) {
- handle_nested_irq(wm831x->irq_base + i);
+ handle_nested_irq(irq_find_mapping(wm831x->irq_domain,
+ i));
+ ret = wm831x_reg_read(wm831x,
+ WM831X_GPIO_LEVEL);
+ }
+ }
+
+ if (primary == WM831X_GP_INT &&
+ wm831x->gpio_level_low[i - WM831X_IRQ_GPIO_1]) {
+ ret = wm831x_reg_read(wm831x, WM831X_GPIO_LEVEL);
+ while (!(ret & 1 << (i - WM831X_IRQ_GPIO_1))) {
+ handle_nested_irq(irq_find_mapping(wm831x->irq_domain,
+ i));
ret = wm831x_reg_read(wm831x,
WM831X_GPIO_LEVEL);
}
return IRQ_HANDLED;
}
+static int wm831x_irq_map(struct irq_domain *h, unsigned int virq,
+ irq_hw_number_t hw)
+{
+ irq_set_chip_data(virq, h->host_data);
+ irq_set_chip_and_handler(virq, &wm831x_irq_chip, handle_edge_irq);
+ irq_set_nested_thread(virq, 1);
+
+ /* ARM needs us to explicitly flag the IRQ as valid
+ * and will set them noprobe when we do so. */
+#ifdef CONFIG_ARM
+ set_irq_flags(virq, IRQF_VALID);
+#else
+ irq_set_noprobe(virq);
+#endif
+
+ return 0;
+}
+
+static struct irq_domain_ops wm831x_irq_domain_ops = {
+ .map = wm831x_irq_map,
+ .xlate = irq_domain_xlate_twocell,
+};
+
int wm831x_irq_init(struct wm831x *wm831x, int irq)
{
struct wm831x_pdata *pdata = wm831x->dev->platform_data;
- int i, cur_irq, ret;
+ struct irq_domain *domain;
+ int i, ret, irq_base;
mutex_init(&wm831x->irq_lock);
}
/* Try to dynamically allocate IRQs if no base is specified */
- if (!pdata || !pdata->irq_base)
- wm831x->irq_base = -1;
+ if (pdata && pdata->irq_base) {
+ irq_base = irq_alloc_descs(pdata->irq_base, 0,
+ WM831X_NUM_IRQS, 0);
+ if (irq_base < 0) {
+ dev_warn(wm831x->dev, "Failed to allocate IRQs: %d\n",
+ irq_base);
+ irq_base = 0;
+ }
+ } else {
+ irq_base = 0;
+ }
+
+ if (irq_base)
+ domain = irq_domain_add_legacy(wm831x->dev->of_node,
+ ARRAY_SIZE(wm831x_irqs),
+ irq_base, 0,
+ &wm831x_irq_domain_ops,
+ wm831x);
else
- wm831x->irq_base = pdata->irq_base;
+ domain = irq_domain_add_linear(wm831x->dev->of_node,
+ ARRAY_SIZE(wm831x_irqs),
+ &wm831x_irq_domain_ops,
+ wm831x);
- wm831x->irq_base = irq_alloc_descs(wm831x->irq_base, 0,
- WM831X_NUM_IRQS, 0);
- if (wm831x->irq_base < 0) {
- dev_warn(wm831x->dev, "Failed to allocate IRQs: %d\n",
- wm831x->irq_base);
- wm831x->irq_base = 0;
- return 0;
+ if (!domain) {
+ dev_warn(wm831x->dev, "Failed to allocate IRQ domain\n");
+ return -EINVAL;
}
if (pdata && pdata->irq_cmos)
wm831x_set_bits(wm831x, WM831X_IRQ_CONFIG,
WM831X_IRQ_OD, i);
- /* Try to flag /IRQ as a wake source; there are a number of
- * unconditional wake sources in the PMIC so this isn't
- * conditional but we don't actually care *too* much if it
- * fails.
- */
- ret = enable_irq_wake(irq);
- if (ret != 0) {
- dev_warn(wm831x->dev, "Can't enable IRQ as wake source: %d\n",
- ret);
- }
-
wm831x->irq = irq;
-
- /* Register them with genirq */
- for (cur_irq = wm831x->irq_base;
- cur_irq < ARRAY_SIZE(wm831x_irqs) + wm831x->irq_base;
- cur_irq++) {
- irq_set_chip_data(cur_irq, wm831x);
- irq_set_chip_and_handler(cur_irq, &wm831x_irq_chip,
- handle_edge_irq);
- irq_set_nested_thread(cur_irq, 1);
-
- /* ARM needs us to explicitly flag the IRQ as valid
- * and will set them noprobe when we do so. */
-#ifdef CONFIG_ARM
- set_irq_flags(cur_irq, IRQF_VALID);
-#else
- irq_set_noprobe(cur_irq);
-#endif
- }
+ wm831x->irq_domain = domain;
if (irq) {
+ /* Try to flag /IRQ as a wake source; there are a number of
+ * unconditional wake sources in the PMIC so this isn't
+ * conditional but we don't actually care *too* much if it
+ * fails.
+ */
+ ret = enable_irq_wake(irq);
+ if (ret != 0) {
+ dev_warn(wm831x->dev,
+ "Can't enable IRQ as wake source: %d\n",
+ ret);
+ }
+
ret = request_threaded_irq(irq, NULL, wm831x_irq_thread,
IRQF_TRIGGER_LOW | IRQF_ONESHOT,
"wm831x", wm831x);
#include <linux/device.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
+#include <linux/regmap.h>
#include <linux/workqueue.h>
#include <linux/mfd/wm8350/core.h>
int bytes = num_regs * 2;
dev_dbg(wm8350->dev, "volatile read\n");
- ret = wm8350->read_dev(wm8350, reg, bytes, (char *)dest);
+ ret = regmap_raw_read(wm8350->regmap, reg, dest, bytes);
for (i = reg; i < reg + num_regs; i++) {
/* Cache is CPU endian */
int ret = 0;
int bytes = num_regs * 2;
- if (wm8350->read_dev == NULL)
- return -ENODEV;
-
if ((reg + num_regs - 1) > WM8350_MAX_REGISTER) {
dev_err(wm8350->dev, "invalid reg %x\n",
reg + num_regs - 1);
int end = reg + num_regs;
int bytes = num_regs * 2;
- if (wm8350->write_dev == NULL)
- return -ENODEV;
-
if ((reg + num_regs - 1) > WM8350_MAX_REGISTER) {
dev_err(wm8350->dev, "invalid reg %x\n",
reg + num_regs - 1);
}
/* Actually write it out */
- return wm8350->write_dev(wm8350, reg, bytes, (char *)src);
+ return regmap_raw_write(wm8350->regmap, reg, src, bytes);
}
/*
* a PMIC so the device many not be in a virgin state and we
* can't rely on the silicon values.
*/
- ret = wm8350->read_dev(wm8350, 0,
- sizeof(u16) * (WM8350_MAX_REGISTER + 1),
- wm8350->reg_cache);
+ ret = regmap_raw_read(wm8350->regmap, 0, wm8350->reg_cache,
+ sizeof(u16) * (WM8350_MAX_REGISTER + 1));
if (ret < 0) {
dev_err(wm8350->dev,
"failed to read initial cache values\n");
struct wm8350_platform_data *pdata)
{
int ret;
- u16 id1, id2, mask_rev;
- u16 cust_id, mode, chip_rev;
+ unsigned int id1, id2, mask_rev;
+ unsigned int cust_id, mode, chip_rev;
dev_set_drvdata(wm8350->dev, wm8350);
/* get WM8350 revision and config mode */
- ret = wm8350->read_dev(wm8350, WM8350_RESET_ID, sizeof(id1), &id1);
+ ret = regmap_read(wm8350->regmap, WM8350_RESET_ID, &id1);
if (ret != 0) {
dev_err(wm8350->dev, "Failed to read ID: %d\n", ret);
goto err;
}
- ret = wm8350->read_dev(wm8350, WM8350_ID, sizeof(id2), &id2);
+ ret = regmap_read(wm8350->regmap, WM8350_ID, &id2);
if (ret != 0) {
dev_err(wm8350->dev, "Failed to read ID: %d\n", ret);
goto err;
}
- ret = wm8350->read_dev(wm8350, WM8350_REVISION, sizeof(mask_rev),
- &mask_rev);
+ ret = regmap_read(wm8350->regmap, WM8350_REVISION, &mask_rev);
if (ret != 0) {
dev_err(wm8350->dev, "Failed to read revision: %d\n", ret);
goto err;
}
- id1 = be16_to_cpu(id1);
- id2 = be16_to_cpu(id2);
- mask_rev = be16_to_cpu(mask_rev);
-
if (id1 != 0x6143) {
dev_err(wm8350->dev,
"Device with ID %x is not a WM8350\n", id1);
#include <linux/module.h>
#include <linux/moduleparam.h>
+#include <linux/err.h>
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/mfd/wm8350/core.h>
+#include <linux/regmap.h>
#include <linux/slab.h>
-static int wm8350_i2c_read_device(struct wm8350 *wm8350, char reg,
- int bytes, void *dest)
-{
- int ret;
-
- ret = i2c_master_send(wm8350->i2c_client, ®, 1);
- if (ret < 0)
- return ret;
- ret = i2c_master_recv(wm8350->i2c_client, dest, bytes);
- if (ret < 0)
- return ret;
- if (ret != bytes)
- return -EIO;
- return 0;
-}
-
-static int wm8350_i2c_write_device(struct wm8350 *wm8350, char reg,
- int bytes, void *src)
-{
- /* we add 1 byte for device register */
- u8 msg[(WM8350_MAX_REGISTER << 1) + 1];
- int ret;
-
- if (bytes > ((WM8350_MAX_REGISTER << 1) + 1))
- return -EINVAL;
-
- msg[0] = reg;
- memcpy(&msg[1], src, bytes);
- ret = i2c_master_send(wm8350->i2c_client, msg, bytes + 1);
- if (ret < 0)
- return ret;
- if (ret != bytes + 1)
- return -EIO;
- return 0;
-}
+static const struct regmap_config wm8350_regmap = {
+ .reg_bits = 8,
+ .val_bits = 16,
+};
static int wm8350_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
if (wm8350 == NULL)
return -ENOMEM;
+ wm8350->regmap = devm_regmap_init_i2c(i2c, &wm8350_regmap);
+ if (IS_ERR(wm8350->regmap)) {
+ ret = PTR_ERR(wm8350->regmap);
+ dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
+ ret);
+ return ret;
+ }
+
i2c_set_clientdata(i2c, wm8350);
wm8350->dev = &i2c->dev;
- wm8350->i2c_client = i2c;
- wm8350->read_dev = wm8350_i2c_read_device;
- wm8350->write_dev = wm8350_i2c_write_device;
-
- ret = wm8350_device_init(wm8350, i2c->irq, i2c->dev.platform_data);
- if (ret < 0)
- goto err;
-
- return ret;
-err:
- return ret;
+ return wm8350_device_init(wm8350, i2c->irq, i2c->dev.platform_data);
}
static int wm8350_i2c_remove(struct i2c_client *i2c)
#include <linux/regmap.h>
#include <linux/slab.h>
-static struct {
- u16 readable; /* Mask of readable bits */
- u16 writable; /* Mask of writable bits */
- u16 vol; /* Mask of volatile bits */
- int is_codec; /* Register controlled by codec reset */
- u16 default_val; /* Value on reset */
-} reg_data[] = {
- { 0xFFFF, 0xFFFF, 0x0000, 0, 0x6172 }, /* R0 */
- { 0x7000, 0x0000, 0x8000, 0, 0x0000 }, /* R1 */
- { 0xFF17, 0xFF17, 0x0000, 0, 0x0000 }, /* R2 */
- { 0xEBF3, 0xEBF3, 0x0000, 1, 0x6000 }, /* R3 */
- { 0x3CF3, 0x3CF3, 0x0000, 1, 0x0000 }, /* R4 */
- { 0xF1F8, 0xF1F8, 0x0000, 1, 0x4050 }, /* R5 */
- { 0xFC1F, 0xFC1F, 0x0000, 1, 0x4000 }, /* R6 */
- { 0xDFDE, 0xDFDE, 0x0000, 1, 0x01C8 }, /* R7 */
- { 0xFCFC, 0xFCFC, 0x0000, 1, 0x0000 }, /* R8 */
- { 0xEFFF, 0xEFFF, 0x0000, 1, 0x0040 }, /* R9 */
- { 0xEFFF, 0xEFFF, 0x0000, 1, 0x0040 }, /* R10 */
- { 0x27F7, 0x27F7, 0x0000, 1, 0x0004 }, /* R11 */
- { 0x01FF, 0x01FF, 0x0000, 1, 0x00C0 }, /* R12 */
- { 0x01FF, 0x01FF, 0x0000, 1, 0x00C0 }, /* R13 */
- { 0x1FEF, 0x1FEF, 0x0000, 1, 0x0000 }, /* R14 */
- { 0x0163, 0x0163, 0x0000, 1, 0x0100 }, /* R15 */
- { 0x01FF, 0x01FF, 0x0000, 1, 0x00C0 }, /* R16 */
- { 0x01FF, 0x01FF, 0x0000, 1, 0x00C0 }, /* R17 */
- { 0x1FFF, 0x0FFF, 0x0000, 1, 0x0000 }, /* R18 */
- { 0xFFFF, 0xFFFF, 0x0000, 1, 0x1000 }, /* R19 */
- { 0xFFFF, 0xFFFF, 0x0000, 1, 0x1010 }, /* R20 */
- { 0xFFFF, 0xFFFF, 0x0000, 1, 0x1010 }, /* R21 */
- { 0x0FDD, 0x0FDD, 0x0000, 1, 0x8000 }, /* R22 */
- { 0x1FFF, 0x1FFF, 0x0000, 1, 0x0800 }, /* R23 */
- { 0x0000, 0x01DF, 0x0000, 1, 0x008B }, /* R24 */
- { 0x0000, 0x01DF, 0x0000, 1, 0x008B }, /* R25 */
- { 0x0000, 0x01DF, 0x0000, 1, 0x008B }, /* R26 */
- { 0x0000, 0x01DF, 0x0000, 1, 0x008B }, /* R27 */
- { 0x0000, 0x01FF, 0x0000, 1, 0x0000 }, /* R28 */
- { 0x0000, 0x01FF, 0x0000, 1, 0x0000 }, /* R29 */
- { 0x0000, 0x0077, 0x0000, 1, 0x0066 }, /* R30 */
- { 0x0000, 0x0033, 0x0000, 1, 0x0022 }, /* R31 */
- { 0x0000, 0x01FF, 0x0000, 1, 0x0079 }, /* R32 */
- { 0x0000, 0x01FF, 0x0000, 1, 0x0079 }, /* R33 */
- { 0x0000, 0x0003, 0x0000, 1, 0x0003 }, /* R34 */
- { 0x0000, 0x01FF, 0x0000, 1, 0x0003 }, /* R35 */
- { 0x0000, 0x0000, 0x0000, 0, 0x0000 }, /* R36 */
- { 0x0000, 0x003F, 0x0000, 1, 0x0100 }, /* R37 */
- { 0x0000, 0x0000, 0x0000, 0, 0x0000 }, /* R38 */
- { 0x0000, 0x000F, 0x0000, 0, 0x0000 }, /* R39 */
- { 0x0000, 0x00FF, 0x0000, 1, 0x0000 }, /* R40 */
- { 0x0000, 0x01B7, 0x0000, 1, 0x0000 }, /* R41 */
- { 0x0000, 0x01B7, 0x0000, 1, 0x0000 }, /* R42 */
- { 0x0000, 0x01FF, 0x0000, 1, 0x0000 }, /* R43 */
- { 0x0000, 0x01FF, 0x0000, 1, 0x0000 }, /* R44 */
- { 0x0000, 0x00FD, 0x0000, 1, 0x0000 }, /* R45 */
- { 0x0000, 0x00FD, 0x0000, 1, 0x0000 }, /* R46 */
- { 0x0000, 0x01FF, 0x0000, 1, 0x0000 }, /* R47 */
- { 0x0000, 0x01FF, 0x0000, 1, 0x0000 }, /* R48 */
- { 0x0000, 0x01FF, 0x0000, 1, 0x0000 }, /* R49 */
- { 0x0000, 0x01FF, 0x0000, 1, 0x0000 }, /* R50 */
- { 0x0000, 0x01B3, 0x0000, 1, 0x0180 }, /* R51 */
- { 0x0000, 0x0077, 0x0000, 1, 0x0000 }, /* R52 */
- { 0x0000, 0x0077, 0x0000, 1, 0x0000 }, /* R53 */
- { 0x0000, 0x00FF, 0x0000, 1, 0x0000 }, /* R54 */
- { 0x0000, 0x0001, 0x0000, 1, 0x0000 }, /* R55 */
- { 0x0000, 0x003F, 0x0000, 1, 0x0000 }, /* R56 */
- { 0x0000, 0x004F, 0x0000, 1, 0x0000 }, /* R57 */
- { 0x0000, 0x00FD, 0x0000, 1, 0x0000 }, /* R58 */
- { 0x0000, 0x0000, 0x0000, 0, 0x0000 }, /* R59 */
- { 0x1FFF, 0x1FFF, 0x0000, 1, 0x0000 }, /* R60 */
- { 0xFFFF, 0xFFFF, 0x0000, 1, 0x0000 }, /* R61 */
- { 0x03FF, 0x03FF, 0x0000, 1, 0x0000 }, /* R62 */
- { 0x007F, 0x007F, 0x0000, 1, 0x0000 }, /* R63 */
- { 0x0000, 0x0000, 0x0000, 0, 0x0000 }, /* R64 */
- { 0xDFFF, 0xDFFF, 0x0000, 0, 0x0000 }, /* R65 */
- { 0xDFFF, 0xDFFF, 0x0000, 0, 0x0000 }, /* R66 */
- { 0xDFFF, 0xDFFF, 0x0000, 0, 0x0000 }, /* R67 */
- { 0xDFFF, 0xDFFF, 0x0000, 0, 0x0000 }, /* R68 */
- { 0x0000, 0x0000, 0x0000, 0, 0x0000 }, /* R69 */
- { 0xFFFF, 0xFFFF, 0x0000, 0, 0x4400 }, /* R70 */
- { 0x23FF, 0x23FF, 0x0000, 0, 0x0000 }, /* R71 */
- { 0xFFFF, 0xFFFF, 0x0000, 0, 0x4400 }, /* R72 */
- { 0x23FF, 0x23FF, 0x0000, 0, 0x0000 }, /* R73 */
- { 0x0000, 0x0000, 0x0000, 0, 0x0000 }, /* R74 */
- { 0x000E, 0x000E, 0x0000, 0, 0x0008 }, /* R75 */
- { 0xE00F, 0xE00F, 0x0000, 0, 0x0000 }, /* R76 */
- { 0x0000, 0x0000, 0x0000, 0, 0x0000 }, /* R77 */
- { 0x03C0, 0x03C0, 0x0000, 0, 0x02C0 }, /* R78 */
- { 0xFFFF, 0x0000, 0xffff, 0, 0x0000 }, /* R79 */
- { 0xFFFF, 0xFFFF, 0x0000, 0, 0x0000 }, /* R80 */
- { 0xFFFF, 0x0000, 0xffff, 0, 0x0000 }, /* R81 */
- { 0x2BFF, 0x0000, 0xffff, 0, 0x0000 }, /* R82 */
- { 0x0000, 0x0000, 0x0000, 0, 0x0000 }, /* R83 */
- { 0x80FF, 0x80FF, 0x0000, 0, 0x00ff }, /* R84 */
-};
-
-static int wm8400_read(struct wm8400 *wm8400, u8 reg, int num_regs, u16 *dest)
+static bool wm8400_volatile(struct device *dev, unsigned int reg)
{
- int i, ret = 0;
-
- BUG_ON(reg + num_regs > ARRAY_SIZE(wm8400->reg_cache));
-
- /* If there are any volatile reads then read back the entire block */
- for (i = reg; i < reg + num_regs; i++)
- if (reg_data[i].vol) {
- ret = regmap_bulk_read(wm8400->regmap, reg, dest,
- num_regs);
- return ret;
- }
-
- /* Otherwise use the cache */
- memcpy(dest, &wm8400->reg_cache[reg], num_regs * sizeof(u16));
-
- return 0;
-}
-
-static int wm8400_write(struct wm8400 *wm8400, u8 reg, int num_regs,
- u16 *src)
-{
- int ret, i;
-
- BUG_ON(reg + num_regs > ARRAY_SIZE(wm8400->reg_cache));
-
- for (i = 0; i < num_regs; i++) {
- BUG_ON(!reg_data[reg + i].writable);
- wm8400->reg_cache[reg + i] = src[i];
- ret = regmap_write(wm8400->regmap, reg, src[i]);
- if (ret != 0)
- return ret;
+ switch (reg) {
+ case WM8400_INTERRUPT_STATUS_1:
+ case WM8400_INTERRUPT_LEVELS:
+ case WM8400_SHUTDOWN_REASON:
+ return true;
+ default:
+ return false;
}
-
- return 0;
}
/**
*/
u16 wm8400_reg_read(struct wm8400 *wm8400, u8 reg)
{
- u16 val;
-
- mutex_lock(&wm8400->io_lock);
-
- wm8400_read(wm8400, reg, 1, &val);
+ unsigned int val;
+ int ret;
- mutex_unlock(&wm8400->io_lock);
+ ret = regmap_read(wm8400->regmap, reg, &val);
+ if (ret < 0)
+ return ret;
return val;
}
int wm8400_block_read(struct wm8400 *wm8400, u8 reg, int count, u16 *data)
{
- int ret;
-
- mutex_lock(&wm8400->io_lock);
-
- ret = wm8400_read(wm8400, reg, count, data);
-
- mutex_unlock(&wm8400->io_lock);
-
- return ret;
+ return regmap_bulk_read(wm8400->regmap, reg, data, count);
}
EXPORT_SYMBOL_GPL(wm8400_block_read);
-/**
- * wm8400_set_bits - Bitmask write
- *
- * @wm8400: Pointer to wm8400 control structure
- * @reg: Register to access
- * @mask: Mask of bits to change
- * @val: Value to set for masked bits
- */
-int wm8400_set_bits(struct wm8400 *wm8400, u8 reg, u16 mask, u16 val)
-{
- u16 tmp;
- int ret;
-
- mutex_lock(&wm8400->io_lock);
-
- ret = wm8400_read(wm8400, reg, 1, &tmp);
- tmp = (tmp & ~mask) | val;
- if (ret == 0)
- ret = wm8400_write(wm8400, reg, 1, &tmp);
-
- mutex_unlock(&wm8400->io_lock);
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(wm8400_set_bits);
-
-/**
- * wm8400_reset_codec_reg_cache - Reset cached codec registers to
- * their default values.
- */
-void wm8400_reset_codec_reg_cache(struct wm8400 *wm8400)
-{
- int i;
-
- mutex_lock(&wm8400->io_lock);
-
- /* Reset all codec registers to their initial value */
- for (i = 0; i < ARRAY_SIZE(wm8400->reg_cache); i++)
- if (reg_data[i].is_codec)
- wm8400->reg_cache[i] = reg_data[i].default_val;
-
- mutex_unlock(&wm8400->io_lock);
-}
-EXPORT_SYMBOL_GPL(wm8400_reset_codec_reg_cache);
-
static int wm8400_register_codec(struct wm8400 *wm8400)
{
struct mfd_cell cell = {
static int wm8400_init(struct wm8400 *wm8400,
struct wm8400_platform_data *pdata)
{
- u16 reg;
- int ret, i;
-
- mutex_init(&wm8400->io_lock);
+ unsigned int reg;
+ int ret;
dev_set_drvdata(wm8400->dev, wm8400);
/* Check that this is actually a WM8400 */
- ret = regmap_read(wm8400->regmap, WM8400_RESET_ID, &i);
+ ret = regmap_read(wm8400->regmap, WM8400_RESET_ID, ®);
if (ret != 0) {
dev_err(wm8400->dev, "Chip ID register read failed\n");
return -EIO;
}
- if (i != reg_data[WM8400_RESET_ID].default_val) {
- dev_err(wm8400->dev, "Device is not a WM8400, ID is %x\n", i);
+ if (reg != 0x6172) {
+ dev_err(wm8400->dev, "Device is not a WM8400, ID is %x\n",
+ reg);
return -ENODEV;
}
- /* We don't know what state the hardware is in and since this
- * is a PMIC we can't reset it safely so initialise the register
- * cache from the hardware.
- */
- ret = regmap_raw_read(wm8400->regmap, 0, wm8400->reg_cache,
- ARRAY_SIZE(wm8400->reg_cache));
- if (ret != 0) {
- dev_err(wm8400->dev, "Register cache read failed\n");
- return -EIO;
- }
- for (i = 0; i < ARRAY_SIZE(wm8400->reg_cache); i++)
- wm8400->reg_cache[i] = be16_to_cpu(wm8400->reg_cache[i]);
-
- /* If the codec is in reset use hard coded values */
- if (!(wm8400->reg_cache[WM8400_POWER_MANAGEMENT_1] & WM8400_CODEC_ENA))
- for (i = 0; i < ARRAY_SIZE(wm8400->reg_cache); i++)
- if (reg_data[i].is_codec)
- wm8400->reg_cache[i] = reg_data[i].default_val;
-
- ret = wm8400_read(wm8400, WM8400_ID, 1, ®);
+ ret = regmap_read(wm8400->regmap, WM8400_ID, ®);
if (ret != 0) {
dev_err(wm8400->dev, "ID register read failed: %d\n", ret);
return ret;
.reg_bits = 8,
.val_bits = 16,
.max_register = WM8400_REGISTER_COUNT - 1,
+
+ .volatile_reg = wm8400_volatile,
+
+ .cache_type = REGCACHE_RBTREE,
};
+/**
+ * wm8400_reset_codec_reg_cache - Reset cached codec registers to
+ * their default values.
+ */
+void wm8400_reset_codec_reg_cache(struct wm8400 *wm8400)
+{
+ regmap_reinit_cache(wm8400->regmap, &wm8400_regmap_config);
+}
+EXPORT_SYMBOL_GPL(wm8400_reset_codec_reg_cache);
+
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
static int wm8400_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
ret);
goto err_enable;
}
- wm8994->revision = ret;
+ wm8994->revision = ret & WM8994_CHIP_REV_MASK;
+ wm8994->cust_id = (ret & WM8994_CUST_ID_MASK) >> WM8994_CUST_ID_SHIFT;
switch (wm8994->type) {
case WM8994:
break;
}
- dev_info(wm8994->dev, "%s revision %c\n", devname,
- 'A' + wm8994->revision);
+ dev_info(wm8994->dev, "%s revision %c CUST_ID %02x\n", devname,
+ 'A' + wm8994->revision, wm8994->cust_id);
switch (wm8994->type) {
case WM1811:
.id_table = wm8994_i2c_id,
};
-static int __init wm8994_i2c_init(void)
-{
- int ret;
-
- ret = i2c_add_driver(&wm8994_i2c_driver);
- if (ret != 0)
- pr_err("Failed to register wm8994 I2C driver: %d\n", ret);
-
- return ret;
-}
-module_init(wm8994_i2c_init);
-
-static void __exit wm8994_i2c_exit(void)
-{
- i2c_del_driver(&wm8994_i2c_driver);
-}
-module_exit(wm8994_i2c_exit);
+module_i2c_driver(wm8994_i2c_driver);
MODULE_DESCRIPTION("Core support for the WM8994 audio CODEC");
MODULE_LICENSE("GPL");
case WM8994_RATE_STATUS:
case WM8958_MIC_DETECT_3:
case WM8994_DC_SERVO_4E:
- case WM8994_CHIP_REVISION:
case WM8994_INTERRUPT_STATUS_1:
case WM8994_INTERRUPT_STATUS_2:
return true;
return 0;
}
+static const struct of_device_id ab8500_pwm_match[] = {
+ { .compatible = "stericsson,ab8500-pwm", },
+ {}
+};
+
static struct platform_driver ab8500_pwm_driver = {
.driver = {
.name = "ab8500-pwm",
.owner = THIS_MODULE,
+ .of_match_table = ab8500_pwm_match,
},
.probe = ab8500_pwm_probe,
.remove = __devexit_p(ab8500_pwm_remove),
#include <linux/mtd/cfi.h>
#include <linux/platform_device.h>
#include <linux/mtd/physmap.h>
+#include <linux/of.h>
#include <lantiq_soc.h>
-#include <lantiq_platform.h>
/*
* The NOR flash is connected to the same external bus unit (EBU) as PCI.
struct map_info *map;
};
-static char ltq_map_name[] = "ltq_nor";
-static const char *ltq_probe_types[] __devinitconst = { "cmdlinepart", NULL };
+static const char ltq_map_name[] = "ltq_nor";
+static const char *ltq_probe_types[] __devinitconst = {
+ "cmdlinepart", "ofpart", NULL };
static map_word
ltq_read16(struct map_info *map, unsigned long adr)
spin_unlock_irqrestore(&ebu_lock, flags);
}
-static int __init
+static int __devinit
ltq_mtd_probe(struct platform_device *pdev)
{
- struct physmap_flash_data *ltq_mtd_data = dev_get_platdata(&pdev->dev);
+ struct mtd_part_parser_data ppdata;
struct ltq_mtd *ltq_mtd;
- struct resource *res;
struct cfi_private *cfi;
int err;
+ if (of_machine_is_compatible("lantiq,falcon") &&
+ (ltq_boot_select() != BS_FLASH)) {
+ dev_err(&pdev->dev, "invalid bootstrap options\n");
+ return -ENODEV;
+ }
+
ltq_mtd = kzalloc(sizeof(struct ltq_mtd), GFP_KERNEL);
platform_set_drvdata(pdev, ltq_mtd);
ltq_mtd->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!ltq_mtd->res) {
- dev_err(&pdev->dev, "failed to get memory resource");
+ dev_err(&pdev->dev, "failed to get memory resource\n");
err = -ENOENT;
goto err_out;
}
- res = devm_request_mem_region(&pdev->dev, ltq_mtd->res->start,
- resource_size(ltq_mtd->res), dev_name(&pdev->dev));
- if (!ltq_mtd->res) {
- dev_err(&pdev->dev, "failed to request mem resource");
- err = -EBUSY;
- goto err_out;
- }
-
ltq_mtd->map = kzalloc(sizeof(struct map_info), GFP_KERNEL);
- ltq_mtd->map->phys = res->start;
- ltq_mtd->map->size = resource_size(res);
- ltq_mtd->map->virt = devm_ioremap_nocache(&pdev->dev,
- ltq_mtd->map->phys, ltq_mtd->map->size);
+ ltq_mtd->map->phys = ltq_mtd->res->start;
+ ltq_mtd->map->size = resource_size(ltq_mtd->res);
+ ltq_mtd->map->virt = devm_request_and_ioremap(&pdev->dev, ltq_mtd->res);
if (!ltq_mtd->map->virt) {
- dev_err(&pdev->dev, "failed to ioremap!\n");
- err = -ENOMEM;
- goto err_free;
+ dev_err(&pdev->dev, "failed to remap mem resource\n");
+ err = -EBUSY;
+ goto err_out;
}
ltq_mtd->map->name = ltq_map_name;
cfi->addr_unlock1 ^= 1;
cfi->addr_unlock2 ^= 1;
- err = mtd_device_parse_register(ltq_mtd->mtd, ltq_probe_types, NULL,
- ltq_mtd_data->parts,
- ltq_mtd_data->nr_parts);
+ ppdata.of_node = pdev->dev.of_node;
+ err = mtd_device_parse_register(ltq_mtd->mtd, ltq_probe_types,
+ &ppdata, NULL, 0);
if (err) {
dev_err(&pdev->dev, "failed to add partitions\n");
goto err_destroy;
return 0;
}
+static const struct of_device_id ltq_mtd_match[] = {
+ { .compatible = "lantiq,nor" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, ltq_mtd_match);
+
static struct platform_driver ltq_mtd_driver = {
+ .probe = ltq_mtd_probe,
.remove = __devexit_p(ltq_mtd_remove),
.driver = {
- .name = "ltq_nor",
+ .name = "ltq-nor",
.owner = THIS_MODULE,
+ .of_match_table = ltq_mtd_match,
},
};
-static int __init
-init_ltq_mtd(void)
-{
- int ret = platform_driver_probe(<q_mtd_driver, ltq_mtd_probe);
-
- if (ret)
- pr_err("ltq_nor: error registering platform driver");
- return ret;
-}
-
-static void __exit
-exit_ltq_mtd(void)
-{
- platform_driver_unregister(<q_mtd_driver);
-}
-
-module_init(init_ltq_mtd);
-module_exit(exit_ltq_mtd);
+module_platform_driver(ltq_mtd_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
if (err) {
dev_err(&pdev->dev, "32-bit PCI DMA addresses"
"not supported by the card\n");
- goto err_out;
+ goto err_out_disable_dev;
}
err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
if (err) {
dev_err(&pdev->dev, "32-bit PCI DMA addresses"
"not supported by the card\n");
- goto err_out;
+ goto err_out_disable_dev;
}
/* IO Size check */
if (pci_resource_len(pdev, bar) < io_size) {
dev_err(&pdev->dev, "Insufficient PCI resources, aborting\n");
err = -EIO;
- goto err_out;
+ goto err_out_disable_dev;
}
pci_set_master(pdev);
dev = alloc_etherdev(sizeof(struct r6040_private));
if (!dev) {
err = -ENOMEM;
- goto err_out;
+ goto err_out_disable_dev;
}
SET_NETDEV_DEV(dev, &pdev->dev);
lp = netdev_priv(dev);
err_out_mdio:
mdiobus_free(lp->mii_bus);
err_out_unmap:
+ netif_napi_del(&lp->napi);
+ pci_set_drvdata(pdev, NULL);
pci_iounmap(pdev, ioaddr);
err_out_free_res:
pci_release_regions(pdev);
err_out_free_dev:
free_netdev(dev);
+err_out_disable_dev:
+ pci_disable_device(pdev);
err_out:
return err;
}
mdiobus_unregister(lp->mii_bus);
kfree(lp->mii_bus->irq);
mdiobus_free(lp->mii_bus);
+ netif_napi_del(&lp->napi);
+ pci_set_drvdata(pdev, NULL);
+ pci_iounmap(pdev, lp->base);
pci_release_regions(pdev);
free_netdev(dev);
pci_disable_device(pdev);
/* Restart Rx engine if stopped. */
/* If we don't need to check status, don't. -KDU */
- if (!(sh_eth_read(ndev, EDRRR) & EDRRR_R))
+ if (!(sh_eth_read(ndev, EDRRR) & EDRRR_R)) {
+ /* fix the values for the next receiving */
+ mdp->cur_rx = mdp->dirty_rx = (sh_eth_read(ndev, RDFAR) -
+ sh_eth_read(ndev, RDLAR)) >> 4;
sh_eth_write(ndev, EDRRR_R, EDRRR);
+ }
return 0;
}
/* Receive Descriptor Empty int */
ndev->stats.rx_over_errors++;
- if (sh_eth_read(ndev, EDRRR) ^ EDRRR_R)
- sh_eth_write(ndev, EDRRR_R, EDRRR);
if (netif_msg_rx_err(mdp))
dev_err(&ndev->dev, "Receive Descriptor Empty\n");
}
retval = smsc911x_request_resources(pdev);
if (retval)
- goto out_return_resources;
+ goto out_request_resources_fail;
retval = smsc911x_enable_resources(pdev);
if (retval)
- goto out_disable_resources;
+ goto out_enable_resources_fail;
if (pdata->ioaddr == NULL) {
SMSC_WARN(pdata, probe, "Error smsc911x base address invalid");
free_irq(dev->irq, dev);
out_disable_resources:
(void)smsc911x_disable_resources(pdev);
-out_return_resources:
+out_enable_resources_fail:
smsc911x_free_resources(pdev);
+out_request_resources_fail:
platform_set_drvdata(pdev, NULL);
iounmap(pdata->ioaddr);
free_netdev(dev);
#include <linux/crc32.h>
#include <linux/usb/usbnet.h>
#include <linux/slab.h>
+#include <linux/if_vlan.h>
#define DRIVER_VERSION "22-Dec-2011"
#define DRIVER_NAME "asix"
return 0;
}
- if ((size > dev->net->mtu + ETH_HLEN) ||
+ if ((size > dev->net->mtu + ETH_HLEN + VLAN_HLEN) ||
(size + offset > skb->len)) {
netdev_err(dev->net, "asix_rx_fixup() Bad RX Length %d\n",
size);
{QMI_GOBI_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */
{QMI_GOBI_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */
{QMI_GOBI_DEVICE(0x1199, 0x9013)}, /* Sierra Wireless Gobi 3000 Modem device (MC8355) */
+ {QMI_GOBI_DEVICE(0x1199, 0x9015)}, /* Sierra Wireless Gobi 3000 Modem device */
+ {QMI_GOBI_DEVICE(0x1199, 0x9019)}, /* Sierra Wireless Gobi 3000 Modem device */
{ } /* END */
};
MODULE_DEVICE_TABLE(usb, products);
vi->config_enable = false;
mutex_unlock(&vi->config_lock);
- virtqueue_disable_cb(vi->rvq);
- virtqueue_disable_cb(vi->svq);
- if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_VQ))
- virtqueue_disable_cb(vi->cvq);
-
netif_device_detach(vi->dev);
cancel_delayed_work_sync(&vi->refill);
* Initialization routines *
\*************************/
+static const struct ieee80211_iface_limit if_limits[] = {
+ { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) },
+ { .max = 4, .types =
+#ifdef CONFIG_MAC80211_MESH
+ BIT(NL80211_IFTYPE_MESH_POINT) |
+#endif
+ BIT(NL80211_IFTYPE_AP) },
+};
+
+static const struct ieee80211_iface_combination if_comb = {
+ .limits = if_limits,
+ .n_limits = ARRAY_SIZE(if_limits),
+ .max_interfaces = 2048,
+ .num_different_channels = 1,
+};
+
int __devinit
ath5k_init_ah(struct ath5k_hw *ah, const struct ath_bus_ops *bus_ops)
{
BIT(NL80211_IFTYPE_ADHOC) |
BIT(NL80211_IFTYPE_MESH_POINT);
+ hw->wiphy->iface_combinations = &if_comb;
+ hw->wiphy->n_iface_combinations = 1;
+
/* SW support for IBSS_RSN is provided by mac80211 */
hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
return true;
}
-static void ar9003_hw_internal_regulator_apply(struct ath_hw *ah)
+void ar9003_hw_internal_regulator_apply(struct ath_hw *ah)
{
int internal_regulator =
ath9k_hw_ar9300_get_eeprom(ah, EEP_INTERNAL_REGULATOR);
unsigned int ar9003_get_paprd_scale_factor(struct ath_hw *ah,
struct ath9k_channel *chan);
+
+void ar9003_hw_internal_regulator_apply(struct ath_hw *ah);
+
#endif
/*
- * Copyright (c) 2011 Atheros Communications Inc.
+ * Copyright (c) 2010-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
#define INITVALS_9330_1P1_H
static const u32 ar9331_1p1_baseband_postamble[][5] = {
- /* Addr 5G_HT20 5G_HT40 2G_HT40 2G_HT20 */
+ /* Addr 5G_HT20 5G_HT40 2G_HT40 2G_HT20 */
{0x00009810, 0xd00a8005, 0xd00a8005, 0xd00a8005, 0xd00a8005},
{0x00009820, 0x206a002e, 0x206a002e, 0x206a002e, 0x206a002e},
{0x00009824, 0x5ac640d0, 0x5ac640d0, 0x5ac640d0, 0x5ac640d0},
{0x00009830, 0x0000059c, 0x0000059c, 0x0000059c, 0x0000059c},
{0x00009c00, 0x00000044, 0x00000044, 0x00000044, 0x00000044},
{0x00009e00, 0x0372161e, 0x0372161e, 0x037216a4, 0x037216a4},
- {0x00009e04, 0x00182020, 0x00182020, 0x00182020, 0x00182020},
+ {0x00009e04, 0x00202020, 0x00202020, 0x00202020, 0x00202020},
{0x00009e0c, 0x6c4000e2, 0x6d4000e2, 0x6d4000e2, 0x6c4000e2},
{0x00009e10, 0x7ec80d2e, 0x7ec80d2e, 0x7ec80d2e, 0x7ec80d2e},
- {0x00009e14, 0x31395d5e, 0x3139605e, 0x3139605e, 0x31395d5e},
+ {0x00009e14, 0x31365d5e, 0x3136605e, 0x3136605e, 0x31365d5e},
{0x00009e18, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
{0x00009e1c, 0x0001cf9c, 0x0001cf9c, 0x00021f9c, 0x00021f9c},
{0x00009e20, 0x000003b5, 0x000003b5, 0x000003ce, 0x000003ce},
{0x0000a288, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
{0x0000a28c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
{0x0000a2c4, 0x00158d18, 0x00158d18, 0x00158d18, 0x00158d18},
- {0x0000a2d0, 0x00071981, 0x00071981, 0x00071981, 0x00071981},
+ {0x0000a2d0, 0x00071982, 0x00071982, 0x00071982, 0x00071982},
{0x0000a2d8, 0xf999a83a, 0xf999a83a, 0xf999a83a, 0xf999a83a},
{0x0000a358, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
{0x0000ae04, 0x00802020, 0x00802020, 0x00802020, 0x00802020},
};
static const u32 ar9331_modes_lowest_ob_db_tx_gain_1p1[][5] = {
- /* Addr 5G_HT20 5G_HT40 2G_HT40 2G_HT20 */
+ /* Addr 5G_HT20 5G_HT40 2G_HT40 2G_HT20 */
{0x0000a2d8, 0x7999a83a, 0x7999a83a, 0x7999a83a, 0x7999a83a},
{0x0000a2dc, 0xffff2a52, 0xffff2a52, 0xffff2a52, 0xffff2a52},
{0x0000a2e0, 0xffffcc84, 0xffffcc84, 0xffffcc84, 0xffffcc84},
};
static const u32 ar9331_modes_high_ob_db_tx_gain_1p1[][5] = {
- /* Addr 5G_HT20 5G_HT40 2G_HT40 2G_HT20 */
+ /* Addr 5G_HT20 5G_HT40 2G_HT40 2G_HT20 */
{0x0000a2d8, 0x7999a83a, 0x7999a83a, 0x7999a83a, 0x7999a83a},
{0x0000a2dc, 0xffaa9a52, 0xffaa9a52, 0xffaa9a52, 0xffaa9a52},
{0x0000a2e0, 0xffb31c84, 0xffb31c84, 0xffb31c84, 0xffb31c84},
};
static const u32 ar9331_modes_low_ob_db_tx_gain_1p1[][5] = {
- /* Addr 5G_HT20 5G_HT40 2G_HT40 2G_HT20 */
+ /* Addr 5G_HT20 5G_HT40 2G_HT40 2G_HT20 */
{0x0000a2d8, 0x7999a83a, 0x7999a83a, 0x7999a83a, 0x7999a83a},
{0x0000a2dc, 0xffff2a52, 0xffff2a52, 0xffff2a52, 0xffff2a52},
{0x0000a2e0, 0xffffcc84, 0xffffcc84, 0xffffcc84, 0xffffcc84},
{0x000160b4, 0x92480040},
{0x000160c0, 0x006db6db},
{0x000160c4, 0x0186db60},
- {0x000160c8, 0x6db6db6c},
+ {0x000160c8, 0x6db4db6c},
{0x000160cc, 0x6de6c300},
{0x000160d0, 0x14500820},
{0x00016100, 0x04cb0001},
{0x00016104, 0xfff80015},
{0x00016108, 0x00080010},
{0x0001610c, 0x00170000},
- {0x00016140, 0x10804000},
+ {0x00016140, 0x10800000},
{0x00016144, 0x01884080},
{0x00016148, 0x000080c0},
{0x00016280, 0x01000015},
};
static const u32 ar9331_1p1_soc_postamble[][5] = {
- /* Addr 5G_HT20 5G_HT40 2G_HT40 2G_HT20 */
+ /* Addr 5G_HT20 5G_HT40 2G_HT40 2G_HT20 */
{0x00007010, 0x00000022, 0x00000022, 0x00000022, 0x00000022},
};
};
static const u32 ar9331_modes_high_power_tx_gain_1p1[][5] = {
- /* Addr 5G_HT20 5G_HT40 2G_HT40 2G_HT20 */
+ /* Addr 5G_HT20 5G_HT40 2G_HT40 2G_HT20 */
{0x0000a2d8, 0x7999a83a, 0x7999a83a, 0x7999a83a, 0x7999a83a},
{0x0000a2dc, 0xffff2a52, 0xffff2a52, 0xffff2a52, 0xffff2a52},
{0x0000a2e0, 0xffffcc84, 0xffffcc84, 0xffffcc84, 0xffffcc84},
};
static const u32 ar9331_1p1_mac_postamble[][5] = {
- /* Addr 5G_HT20 5G_HT40 2G_HT40 2G_HT20 */
+ /* Addr 5G_HT20 5G_HT40 2G_HT40 2G_HT20 */
{0x00001030, 0x00000230, 0x00000460, 0x000002c0, 0x00000160},
{0x00001070, 0x00000168, 0x000002d0, 0x00000318, 0x0000018c},
{0x000010b0, 0x00000e60, 0x00001cc0, 0x00007c70, 0x00003e38},
static const u32 ar9331_common_rx_gain_1p1[][2] = {
/* Addr allmodes */
- {0x0000a000, 0x00010000},
- {0x0000a004, 0x00030002},
- {0x0000a008, 0x00050004},
- {0x0000a00c, 0x00810080},
- {0x0000a010, 0x00830082},
- {0x0000a014, 0x01810180},
- {0x0000a018, 0x01830182},
- {0x0000a01c, 0x01850184},
- {0x0000a020, 0x01890188},
- {0x0000a024, 0x018b018a},
- {0x0000a028, 0x018d018c},
- {0x0000a02c, 0x01910190},
- {0x0000a030, 0x01930192},
- {0x0000a034, 0x01950194},
- {0x0000a038, 0x038a0196},
- {0x0000a03c, 0x038c038b},
- {0x0000a040, 0x0390038d},
- {0x0000a044, 0x03920391},
- {0x0000a048, 0x03940393},
- {0x0000a04c, 0x03960395},
+ {0x00009e18, 0x05000000},
+ {0x0000a000, 0x00060005},
+ {0x0000a004, 0x00810080},
+ {0x0000a008, 0x00830082},
+ {0x0000a00c, 0x00850084},
+ {0x0000a010, 0x01820181},
+ {0x0000a014, 0x01840183},
+ {0x0000a018, 0x01880185},
+ {0x0000a01c, 0x018a0189},
+ {0x0000a020, 0x02850284},
+ {0x0000a024, 0x02890288},
+ {0x0000a028, 0x028b028a},
+ {0x0000a02c, 0x03850384},
+ {0x0000a030, 0x03890388},
+ {0x0000a034, 0x038b038a},
+ {0x0000a038, 0x038d038c},
+ {0x0000a03c, 0x03910390},
+ {0x0000a040, 0x03930392},
+ {0x0000a044, 0x03950394},
+ {0x0000a048, 0x00000396},
+ {0x0000a04c, 0x00000000},
{0x0000a050, 0x00000000},
{0x0000a054, 0x00000000},
{0x0000a058, 0x00000000},
{0x0000a074, 0x00000000},
{0x0000a078, 0x00000000},
{0x0000a07c, 0x00000000},
- {0x0000a080, 0x22222229},
- {0x0000a084, 0x1d1d1d1d},
- {0x0000a088, 0x1d1d1d1d},
- {0x0000a08c, 0x1d1d1d1d},
- {0x0000a090, 0x171d1d1d},
- {0x0000a094, 0x11111717},
- {0x0000a098, 0x00030311},
- {0x0000a09c, 0x00000000},
- {0x0000a0a0, 0x00000000},
+ {0x0000a080, 0x28282828},
+ {0x0000a084, 0x28282828},
+ {0x0000a088, 0x28282828},
+ {0x0000a08c, 0x28282828},
+ {0x0000a090, 0x28282828},
+ {0x0000a094, 0x24242428},
+ {0x0000a098, 0x171e1e1e},
+ {0x0000a09c, 0x02020b0b},
+ {0x0000a0a0, 0x02020202},
{0x0000a0a4, 0x00000000},
{0x0000a0a8, 0x00000000},
{0x0000a0ac, 0x00000000},
{0x0000a0b4, 0x00000000},
{0x0000a0b8, 0x00000000},
{0x0000a0bc, 0x00000000},
- {0x0000a0c0, 0x001f0000},
- {0x0000a0c4, 0x01000101},
- {0x0000a0c8, 0x011e011f},
- {0x0000a0cc, 0x011c011d},
- {0x0000a0d0, 0x02030204},
- {0x0000a0d4, 0x02010202},
- {0x0000a0d8, 0x021f0200},
- {0x0000a0dc, 0x0302021e},
- {0x0000a0e0, 0x03000301},
- {0x0000a0e4, 0x031e031f},
- {0x0000a0e8, 0x0402031d},
- {0x0000a0ec, 0x04000401},
- {0x0000a0f0, 0x041e041f},
- {0x0000a0f4, 0x0502041d},
- {0x0000a0f8, 0x05000501},
- {0x0000a0fc, 0x051e051f},
- {0x0000a100, 0x06010602},
- {0x0000a104, 0x061f0600},
- {0x0000a108, 0x061d061e},
- {0x0000a10c, 0x07020703},
- {0x0000a110, 0x07000701},
+ {0x0000a0c0, 0x22072208},
+ {0x0000a0c4, 0x22052206},
+ {0x0000a0c8, 0x22032204},
+ {0x0000a0cc, 0x22012202},
+ {0x0000a0d0, 0x221f2200},
+ {0x0000a0d4, 0x221d221e},
+ {0x0000a0d8, 0x33023303},
+ {0x0000a0dc, 0x33003301},
+ {0x0000a0e0, 0x331e331f},
+ {0x0000a0e4, 0x4402331d},
+ {0x0000a0e8, 0x44004401},
+ {0x0000a0ec, 0x441e441f},
+ {0x0000a0f0, 0x55025503},
+ {0x0000a0f4, 0x55005501},
+ {0x0000a0f8, 0x551e551f},
+ {0x0000a0fc, 0x6602551d},
+ {0x0000a100, 0x66006601},
+ {0x0000a104, 0x661e661f},
+ {0x0000a108, 0x7703661d},
+ {0x0000a10c, 0x77017702},
+ {0x0000a110, 0x00007700},
{0x0000a114, 0x00000000},
{0x0000a118, 0x00000000},
{0x0000a11c, 0x00000000},
{0x0000a138, 0x00000000},
{0x0000a13c, 0x00000000},
{0x0000a140, 0x001f0000},
- {0x0000a144, 0x01000101},
- {0x0000a148, 0x011e011f},
- {0x0000a14c, 0x011c011d},
- {0x0000a150, 0x02030204},
- {0x0000a154, 0x02010202},
- {0x0000a158, 0x021f0200},
- {0x0000a15c, 0x0302021e},
- {0x0000a160, 0x03000301},
- {0x0000a164, 0x031e031f},
- {0x0000a168, 0x0402031d},
- {0x0000a16c, 0x04000401},
- {0x0000a170, 0x041e041f},
- {0x0000a174, 0x0502041d},
- {0x0000a178, 0x05000501},
- {0x0000a17c, 0x051e051f},
- {0x0000a180, 0x06010602},
- {0x0000a184, 0x061f0600},
- {0x0000a188, 0x061d061e},
- {0x0000a18c, 0x07020703},
- {0x0000a190, 0x07000701},
+ {0x0000a144, 0x111f1100},
+ {0x0000a148, 0x111d111e},
+ {0x0000a14c, 0x111b111c},
+ {0x0000a150, 0x22032204},
+ {0x0000a154, 0x22012202},
+ {0x0000a158, 0x221f2200},
+ {0x0000a15c, 0x221d221e},
+ {0x0000a160, 0x33013302},
+ {0x0000a164, 0x331f3300},
+ {0x0000a168, 0x4402331e},
+ {0x0000a16c, 0x44004401},
+ {0x0000a170, 0x441e441f},
+ {0x0000a174, 0x55015502},
+ {0x0000a178, 0x551f5500},
+ {0x0000a17c, 0x6602551e},
+ {0x0000a180, 0x66006601},
+ {0x0000a184, 0x661e661f},
+ {0x0000a188, 0x7703661d},
+ {0x0000a18c, 0x77017702},
+ {0x0000a190, 0x00007700},
{0x0000a194, 0x00000000},
{0x0000a198, 0x00000000},
{0x0000a19c, 0x00000000},
{0x0000a1f0, 0x00000396},
{0x0000a1f4, 0x00000396},
{0x0000a1f8, 0x00000396},
- {0x0000a1fc, 0x00000196},
+ {0x0000a1fc, 0x00000296},
};
static const u32 ar9331_common_tx_gain_offset1_1[][1] = {
- {0},
- {3},
- {0},
- {0},
+ {0x00000000},
+ {0x00000003},
+ {0x00000000},
+ {0x00000000},
};
static const u32 ar9331_1p1_chansel_xtal_25M[] = {
return false;
ah->chip_fullsleep = false;
+
+ if (AR_SREV_9330(ah))
+ ar9003_hw_internal_regulator_apply(ah);
ath9k_hw_init_pll(ah, chan);
ath9k_hw_set_rfmode(ah, chan);
{
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
- bool ret;
+ bool ret = true;
ieee80211_stop_queues(sc->hw);
ath9k_debug_samp_bb_mac(sc);
ath9k_hw_disable_interrupts(ah);
- ret = ath_drain_all_txq(sc, retry_tx);
-
if (!ath_stoprecv(sc))
ret = false;
+ if (!ath_drain_all_txq(sc, retry_tx))
+ ret = false;
+
if (!flush) {
if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
ath_rx_tasklet(sc, 1, true);
static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc,
struct ath_txq *txq,
struct ath_atx_tid *tid,
- struct sk_buff *skb);
+ struct sk_buff *skb,
+ bool dequeue);
enum {
MCS_HT20,
fi = get_frame_info(skb);
bf = fi->bf;
if (!fi->bf)
- bf = ath_tx_setup_buffer(sc, txq, tid, skb);
+ bf = ath_tx_setup_buffer(sc, txq, tid, skb, true);
if (!bf)
continue;
return;
}
- bf = ath_tx_setup_buffer(sc, txctl->txq, tid, skb);
+ bf = ath_tx_setup_buffer(sc, txctl->txq, tid, skb, false);
if (!bf)
return;
bf = fi->bf;
if (!bf)
- bf = ath_tx_setup_buffer(sc, txq, tid, skb);
+ bf = ath_tx_setup_buffer(sc, txq, tid, skb, false);
if (!bf)
return;
static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc,
struct ath_txq *txq,
struct ath_atx_tid *tid,
- struct sk_buff *skb)
+ struct sk_buff *skb,
+ bool dequeue)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_frame_info *fi = get_frame_info(skb);
return bf;
error:
+ if (dequeue)
+ __skb_unlink(skb, &tid->buf_q);
dev_kfree_skb_any(skb);
return NULL;
}
*/
ath_tx_send_ampdu(sc, tid, skb, txctl);
} else {
- bf = ath_tx_setup_buffer(sc, txctl->txq, tid, skb);
+ bf = ath_tx_setup_buffer(sc, txctl->txq, tid, skb, false);
if (!bf)
return;
#include <linux/uaccess.h>
#include <linux/firmware.h>
#include <linux/usb.h>
+#include <linux/vmalloc.h>
#include <net/cfg80211.h>
#include <defs.h>
return -EINVAL;
}
- devinfo->image = kmalloc(fw->size, GFP_ATOMIC); /* plus nvram */
+ devinfo->image = vmalloc(fw->size); /* plus nvram */
if (!devinfo->image)
return -ENOMEM;
void brcmf_usb_exit(void)
{
usb_deregister(&brcmf_usbdrvr);
- kfree(g_image.data);
+ vfree(g_image.data);
g_image.data = NULL;
g_image.len = 0;
}
even if the microcode doesn't advertise it.
Say Y only if you want to experiment with MFP.
-
-config IWLWIFI_UCODE16
- bool "support uCode 16.0"
- depends on IWLWIFI
- help
- This option enables support for uCode version 16.0.
-
- Say Y if you want to use 16.0 microcode.
iwlwifi-objs += iwl-trans-pcie.o iwl-trans-pcie-rx.o iwl-trans-pcie-tx.o
-iwlwifi-$(CONFIG_IWLWIFI_UCODE16) += iwl-phy-db.o
iwlwifi-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o
iwlwifi-$(CONFIG_IWLWIFI_DEVICE_TRACING) += iwl-devtrace.o
iwlwifi-$(CONFIG_IWLWIFI_DEVICE_TESTMODE) += iwl-testmode.o
.chain_noise_scale = 1000,
.wd_timeout = IWL_DEF_WD_TIMEOUT,
.max_event_log_size = 512,
- .shadow_reg_enable = true,
+ .shadow_reg_enable = false, /* TODO: fix bugs using this feature */
.hd_v2 = true,
};
.chain_noise_scale = 1000,
.wd_timeout = IWL_LONG_WD_TIMEOUT,
.max_event_log_size = 512,
- .shadow_reg_enable = true,
+ .shadow_reg_enable = false, /* TODO: fix bugs using this feature */
.hd_v2 = true,
};
.chain_noise_scale = 1000,
.wd_timeout = IWL_DEF_WD_TIMEOUT,
.max_event_log_size = 512,
- .shadow_reg_enable = true,
+ .shadow_reg_enable = false, /* TODO: fix bugs using this feature */
};
static const struct iwl_base_params iwl6050_base_params = {
.chain_noise_scale = 1500,
.wd_timeout = IWL_DEF_WD_TIMEOUT,
.max_event_log_size = 1024,
- .shadow_reg_enable = true,
+ .shadow_reg_enable = false, /* TODO: fix bugs using this feature */
};
static const struct iwl_base_params iwl6000_g2_base_params = {
.chain_noise_scale = 1000,
.wd_timeout = IWL_LONG_WD_TIMEOUT,
.max_event_log_size = 512,
- .shadow_reg_enable = true,
+ .shadow_reg_enable = false, /* TODO: fix bugs using this feature */
};
static const struct iwl_ht_params iwl6000_ht_params = {
if ((priv->bt_traffic_load != priv->last_bt_traffic_load) ||
(priv->bt_full_concurrent != full_concurrent)) {
priv->bt_full_concurrent = full_concurrent;
+ priv->last_bt_traffic_load = priv->bt_traffic_load;
/* Update uCode's rate table. */
tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
~IWL_STA_DRIVER_ACTIVE;
priv->stations[i].used &=
~IWL_STA_UCODE_INPROGRESS;
- spin_unlock_bh(&priv->sta_lock);
+ continue;
}
/*
* Rate scaling has already been initialized, send
return -EINVAL;
}
-static int alloc_pci_desc(struct iwl_drv *drv,
- struct iwl_firmware_pieces *pieces,
- enum iwl_ucode_type type)
+static int iwl_alloc_ucode(struct iwl_drv *drv,
+ struct iwl_firmware_pieces *pieces,
+ enum iwl_ucode_type type)
{
int i;
for (i = 0;
i < IWL_UCODE_SECTION_MAX && get_sec_size(pieces, type, i);
i++)
if (iwl_alloc_fw_desc(drv, &(drv->fw.img[type].sec[i]),
- get_sec(pieces, type, i)))
- return -1;
+ get_sec(pieces, type, i)))
+ return -ENOMEM;
return 0;
}
* 1) unmodified from disk
* 2) backup cache for save/restore during power-downs */
for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
- if (alloc_pci_desc(drv, &pieces, i))
- goto err_pci_alloc;
+ if (iwl_alloc_ucode(drv, &pieces, i))
+ goto out_free_fw;
/* Now that we can no longer fail, copy information */
drv->op_mode = iwl_dvm_ops.start(drv->trans, drv->cfg, &drv->fw);
if (!drv->op_mode)
- goto out_unbind;
+ goto out_free_fw;
return;
goto out_unbind;
return;
- err_pci_alloc:
+ out_free_fw:
IWL_ERR(drv, "failed to allocate pci memory\n");
iwl_dealloc_ucode(drv);
release_firmware(ucode_raw);
+++ /dev/null
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2007 - 2012 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2005 - 2012 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *****************************************************************************/
-
-#include <linux/slab.h>
-#include <linux/string.h>
-
-#include "iwl-debug.h"
-#include "iwl-dev.h"
-
-#include "iwl-phy-db.h"
-
-#define CHANNEL_NUM_SIZE 4 /* num of channels in calib_ch size */
-
-struct iwl_phy_db *iwl_phy_db_init(struct device *dev)
-{
- struct iwl_phy_db *phy_db = kzalloc(sizeof(struct iwl_phy_db),
- GFP_KERNEL);
-
- if (!phy_db)
- return phy_db;
-
- phy_db->dev = dev;
-
- /* TODO: add default values of the phy db. */
- return phy_db;
-}
-
-/*
- * get phy db section: returns a pointer to a phy db section specified by
- * type and channel group id.
- */
-static struct iwl_phy_db_entry *
-iwl_phy_db_get_section(struct iwl_phy_db *phy_db,
- enum iwl_phy_db_section_type type,
- u16 chg_id)
-{
- if (!phy_db || type < 0 || type >= IWL_PHY_DB_MAX)
- return NULL;
-
- switch (type) {
- case IWL_PHY_DB_CFG:
- return &phy_db->cfg;
- case IWL_PHY_DB_CALIB_NCH:
- return &phy_db->calib_nch;
- case IWL_PHY_DB_CALIB_CH:
- return &phy_db->calib_ch;
- case IWL_PHY_DB_CALIB_CHG_PAPD:
- if (chg_id < 0 || chg_id >= IWL_NUM_PAPD_CH_GROUPS)
- return NULL;
- return &phy_db->calib_ch_group_papd[chg_id];
- case IWL_PHY_DB_CALIB_CHG_TXP:
- if (chg_id < 0 || chg_id >= IWL_NUM_TXP_CH_GROUPS)
- return NULL;
- return &phy_db->calib_ch_group_txp[chg_id];
- default:
- return NULL;
- }
- return NULL;
-}
-
-static void iwl_phy_db_free_section(struct iwl_phy_db *phy_db,
- enum iwl_phy_db_section_type type,
- u16 chg_id)
-{
- struct iwl_phy_db_entry *entry =
- iwl_phy_db_get_section(phy_db, type, chg_id);
- if (!entry)
- return;
-
- kfree(entry->data);
- entry->data = NULL;
- entry->size = 0;
-}
-
-void iwl_phy_db_free(struct iwl_phy_db *phy_db)
-{
- int i;
-
- if (!phy_db)
- return;
-
- iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CFG, 0);
- iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_NCH, 0);
- iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CH, 0);
- for (i = 0; i < IWL_NUM_PAPD_CH_GROUPS; i++)
- iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_PAPD, i);
- for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++)
- iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_TXP, i);
-
- kfree(phy_db);
-}
-
-int iwl_phy_db_set_section(struct iwl_phy_db *phy_db,
- enum iwl_phy_db_section_type type, u8 *data,
- u16 size, gfp_t alloc_ctx)
-{
- struct iwl_phy_db_entry *entry;
- u16 chg_id = 0;
-
- if (!phy_db)
- return -EINVAL;
-
- if (type == IWL_PHY_DB_CALIB_CHG_PAPD ||
- type == IWL_PHY_DB_CALIB_CHG_TXP)
- chg_id = le16_to_cpup((__le16 *)data);
-
- entry = iwl_phy_db_get_section(phy_db, type, chg_id);
- if (!entry)
- return -EINVAL;
-
- kfree(entry->data);
- entry->data = kmemdup(data, size, alloc_ctx);
- if (!entry->data) {
- entry->size = 0;
- return -ENOMEM;
- }
-
- entry->size = size;
-
- if (type == IWL_PHY_DB_CALIB_CH) {
- phy_db->channel_num = le32_to_cpup((__le32 *)data);
- phy_db->channel_size =
- (size - CHANNEL_NUM_SIZE) / phy_db->channel_num;
- }
-
- return 0;
-}
-
-static int is_valid_channel(u16 ch_id)
-{
- if (ch_id <= 14 ||
- (36 <= ch_id && ch_id <= 64 && ch_id % 4 == 0) ||
- (100 <= ch_id && ch_id <= 140 && ch_id % 4 == 0) ||
- (145 <= ch_id && ch_id <= 165 && ch_id % 4 == 1))
- return 1;
- return 0;
-}
-
-static u8 ch_id_to_ch_index(u16 ch_id)
-{
- if (WARN_ON(!is_valid_channel(ch_id)))
- return 0xff;
-
- if (ch_id <= 14)
- return ch_id - 1;
- if (ch_id <= 64)
- return (ch_id + 20) / 4;
- if (ch_id <= 140)
- return (ch_id - 12) / 4;
- return (ch_id - 13) / 4;
-}
-
-
-static u16 channel_id_to_papd(u16 ch_id)
-{
- if (WARN_ON(!is_valid_channel(ch_id)))
- return 0xff;
-
- if (1 <= ch_id && ch_id <= 14)
- return 0;
- if (36 <= ch_id && ch_id <= 64)
- return 1;
- if (100 <= ch_id && ch_id <= 140)
- return 2;
- return 3;
-}
-
-static u16 channel_id_to_txp(struct iwl_phy_db *phy_db, u16 ch_id)
-{
- struct iwl_phy_db_chg_txp *txp_chg;
- int i;
- u8 ch_index = ch_id_to_ch_index(ch_id);
- if (ch_index == 0xff)
- return 0xff;
-
- for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++) {
- txp_chg = (void *)phy_db->calib_ch_group_txp[i].data;
- if (!txp_chg)
- return 0xff;
- /*
- * Looking for the first channel group that its max channel is
- * higher then wanted channel.
- */
- if (le16_to_cpu(txp_chg->max_channel_idx) >= ch_index)
- return i;
- }
- return 0xff;
-}
-
-int iwl_phy_db_get_section_data(struct iwl_phy_db *phy_db,
- enum iwl_phy_db_section_type type, u8 **data,
- u16 *size, u16 ch_id)
-{
- struct iwl_phy_db_entry *entry;
- u32 channel_num;
- u32 channel_size;
- u16 ch_group_id = 0;
- u16 index;
-
- if (!phy_db)
- return -EINVAL;
-
- /* find wanted channel group */
- if (type == IWL_PHY_DB_CALIB_CHG_PAPD)
- ch_group_id = channel_id_to_papd(ch_id);
- else if (type == IWL_PHY_DB_CALIB_CHG_TXP)
- ch_group_id = channel_id_to_txp(phy_db, ch_id);
-
- entry = iwl_phy_db_get_section(phy_db, type, ch_group_id);
- if (!entry)
- return -EINVAL;
-
- if (type == IWL_PHY_DB_CALIB_CH) {
- index = ch_id_to_ch_index(ch_id);
- channel_num = phy_db->channel_num;
- channel_size = phy_db->channel_size;
- if (index >= channel_num) {
- IWL_ERR(phy_db, "Wrong channel number %d", ch_id);
- return -EINVAL;
- }
- *data = entry->data + CHANNEL_NUM_SIZE + index * channel_size;
- *size = channel_size;
- } else {
- *data = entry->data;
- *size = entry->size;
- }
- return 0;
-}
+++ /dev/null
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2007 - 2012 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2005 - 2012 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *****************************************************************************/
-
-#ifndef __IWL_PHYDB_H__
-#define __IWL_PHYDB_H__
-
-#include <linux/types.h>
-
-#define IWL_NUM_PAPD_CH_GROUPS 4
-#define IWL_NUM_TXP_CH_GROUPS 8
-
-struct iwl_phy_db_entry {
- u16 size;
- u8 *data;
-};
-
-struct iwl_shared;
-
-/**
- * struct iwl_phy_db - stores phy configuration and calibration data.
- *
- * @cfg: phy configuration.
- * @calib_nch: non channel specific calibration data.
- * @calib_ch: channel specific calibration data.
- * @calib_ch_group_papd: calibration data related to papd channel group.
- * @calib_ch_group_txp: calibration data related to tx power chanel group.
- */
-struct iwl_phy_db {
- struct iwl_phy_db_entry cfg;
- struct iwl_phy_db_entry calib_nch;
- struct iwl_phy_db_entry calib_ch;
- struct iwl_phy_db_entry calib_ch_group_papd[IWL_NUM_PAPD_CH_GROUPS];
- struct iwl_phy_db_entry calib_ch_group_txp[IWL_NUM_TXP_CH_GROUPS];
-
- u32 channel_num;
- u32 channel_size;
-
- /* for an access to the logger */
- struct device *dev;
-};
-
-enum iwl_phy_db_section_type {
- IWL_PHY_DB_CFG = 1,
- IWL_PHY_DB_CALIB_NCH,
- IWL_PHY_DB_CALIB_CH,
- IWL_PHY_DB_CALIB_CHG_PAPD,
- IWL_PHY_DB_CALIB_CHG_TXP,
- IWL_PHY_DB_MAX
-};
-
-/* for parsing of tx power channel group data that comes from the firmware*/
-struct iwl_phy_db_chg_txp {
- __le32 space;
- __le16 max_channel_idx;
-} __packed;
-
-struct iwl_phy_db *iwl_phy_db_init(struct device *dev);
-
-void iwl_phy_db_free(struct iwl_phy_db *phy_db);
-
-int iwl_phy_db_set_section(struct iwl_phy_db *phy_db,
- enum iwl_phy_db_section_type type, u8 *data,
- u16 size, gfp_t alloc_ctx);
-
-int iwl_phy_db_get_section_data(struct iwl_phy_db *phy_db,
- enum iwl_phy_db_section_type type, u8 **data,
- u16 *size, u16 ch_id);
-
-#endif /* __IWL_PHYDB_H__ */
void iwl_trans_pcie_tx_agg_setup(struct iwl_trans *trans, int queue, int fifo,
int sta_id, int tid, int frame_limit, u16 ssn);
void iwlagn_txq_free_tfd(struct iwl_trans *trans, struct iwl_tx_queue *txq,
- int index, enum dma_data_direction dma_dir);
+ enum dma_data_direction dma_dir);
int iwl_tx_queue_reclaim(struct iwl_trans *trans, int txq_id, int index,
struct sk_buff_head *skbs);
int iwl_queue_space(const struct iwl_queue *q);
for (i = 1; i < num_tbs; i++)
dma_unmap_single(trans->dev, iwl_tfd_tb_get_addr(tfd, i),
iwl_tfd_tb_get_len(tfd, i), dma_dir);
+
+ tfd->num_tbs = 0;
}
/**
* iwlagn_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr]
* @trans - transport private data
* @txq - tx queue
- * @index - the index of the TFD to be freed
- *@dma_dir - the direction of the DMA mapping
+ * @dma_dir - the direction of the DMA mapping
*
* Does NOT advance any TFD circular buffer read/write indexes
* Does NOT free the TFD itself (which is within circular buffer)
*/
void iwlagn_txq_free_tfd(struct iwl_trans *trans, struct iwl_tx_queue *txq,
- int index, enum dma_data_direction dma_dir)
+ enum dma_data_direction dma_dir)
{
struct iwl_tfd *tfd_tmp = txq->tfds;
+ /* rd_ptr is bounded by n_bd and idx is bounded by n_window */
+ int rd_ptr = txq->q.read_ptr;
+ int idx = get_cmd_index(&txq->q, rd_ptr);
+
lockdep_assert_held(&txq->lock);
- iwlagn_unmap_tfd(trans, &txq->entries[index].meta,
- &tfd_tmp[index], dma_dir);
+ /* We have only q->n_window txq->entries, but we use q->n_bd tfds */
+ iwlagn_unmap_tfd(trans, &txq->entries[idx].meta,
+ &tfd_tmp[rd_ptr], dma_dir);
/* free SKB */
if (txq->entries) {
struct sk_buff *skb;
- skb = txq->entries[index].skb;
+ skb = txq->entries[idx].skb;
/* Can be called from irqs-disabled context
* If skb is not NULL, it means that the whole queue is being
*/
if (skb) {
iwl_op_mode_free_skb(trans->op_mode, skb);
- txq->entries[index].skb = NULL;
+ txq->entries[idx].skb = NULL;
}
}
}
iwlagn_txq_inval_byte_cnt_tbl(trans, txq);
- iwlagn_txq_free_tfd(trans, txq, txq->q.read_ptr, DMA_TO_DEVICE);
+ iwlagn_txq_free_tfd(trans, txq, DMA_TO_DEVICE);
freed++;
}
spin_lock_bh(&txq->lock);
while (q->write_ptr != q->read_ptr) {
- /* The read_ptr needs to bound by q->n_window */
- iwlagn_txq_free_tfd(trans, txq, get_cmd_index(q, q->read_ptr),
- dma_dir);
+ iwlagn_txq_free_tfd(trans, txq, dma_dir);
q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd);
}
spin_unlock_bh(&txq->lock);
}
if (wl->irq) {
+ irq_set_status_flags(wl->irq, IRQ_NOAUTOEN);
ret = request_irq(wl->irq, wl1251_line_irq, 0, "wl1251", wl);
if (ret < 0) {
wl1251_error("request_irq() failed: %d", ret);
}
irq_set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
- disable_irq(wl->irq);
wl1251_sdio_ops.enable_irq = wl1251_enable_line_irq;
wl1251_sdio_ops.disable_irq = wl1251_disable_line_irq;
wl->use_eeprom = pdata->use_eeprom;
+ irq_set_status_flags(wl->irq, IRQ_NOAUTOEN);
ret = request_irq(wl->irq, wl1251_irq, 0, DRIVER_NAME, wl);
if (ret < 0) {
wl1251_error("request_irq() failed: %d", ret);
irq_set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
- disable_irq(wl->irq);
-
ret = wl1251_init_ieee80211(wl);
if (ret)
goto out_irq;
}
+#ifdef CONFIG_PM
/* Set the global behaviour of RX filters - On/Off + default action */
int wl1271_acx_default_rx_filter_enable(struct wl1271 *wl, bool enable,
enum rx_filter_action action)
kfree(acx);
return ret;
}
+#endif /* CONFIG_PM */
int wl1271_acx_fm_coex(struct wl1271 *wl);
int wl12xx_acx_set_rate_mgmt_params(struct wl1271 *wl);
int wl12xx_acx_config_hangover(struct wl1271 *wl);
+
+#ifdef CONFIG_PM
int wl1271_acx_default_rx_filter_enable(struct wl1271 *wl, bool enable,
enum rx_filter_action action);
int wl1271_acx_set_rx_filter(struct wl1271 *wl, u8 index, bool enable,
struct wl12xx_rx_filter *filter);
-
+#endif /* CONFIG_PM */
#endif /* __WL1271_ACX_H__ */
wl12xx_rearm_rx_streaming(wl, active_hlids);
}
+#ifdef CONFIG_PM
int wl1271_rx_filter_enable(struct wl1271 *wl,
int index, bool enable,
struct wl12xx_rx_filter *filter)
wl1271_rx_filter_enable(wl, i, 0, NULL);
}
}
+#endif /* CONFIG_PM */
unsigned int count;
int i, copy_off;
- count = DIV_ROUND_UP(
- offset_in_page(skb->data)+skb_headlen(skb), PAGE_SIZE);
+ count = DIV_ROUND_UP(skb_headlen(skb), PAGE_SIZE);
copy_off = skb_headlen(skb) % PAGE_SIZE;
static int check_crc(u8 *buf, int buflen)
{
- u8 len;
+ int len;
u16 crc;
len = buf[0] + 1;
* PCI tree until an device-node is found, at which point it will finish
* resolving using the OF tree walking.
*/
-int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq)
+int of_irq_map_pci(const struct pci_dev *pdev, struct of_irq *out_irq)
{
struct device_node *dn, *ppnode;
struct pci_dev *ppdev;
* number is always 0 (see the Implementation Note in section 2.2.8.1 of
* the PCI Express Base Specification, Revision 2.1)
*/
-u8 pci_swizzle_interrupt_pin(struct pci_dev *dev, u8 pin)
+u8 pci_swizzle_interrupt_pin(const struct pci_dev *dev, u8 pin)
{
int slot;
mutex_init(&dev->mutex);
+ memset(&props, 0, sizeof(props));
props.type = BACKLIGHT_PLATFORM;
props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
dev->backlight_dev = backlight_device_register("toshiba",
menuconfig POWER_SUPPLY
- tristate "Power supply class support"
+ bool "Power supply class support"
help
Say Y here to enable power supply class support. This allows
power supply (batteries, AC, USB) monitoring by userspace
Say Y here to enable support for batteries with ds2780 chip.
config BATTERY_DS2781
- tristate "2781 battery driver"
+ tristate "DS2781 battery driver"
depends on HAS_IOMEM
select W1
select W1_SLAVE_DS2781
to operate with a single lithium cell
config BATTERY_MAX17042
- tristate "Maxim MAX17042/8997/8966 Fuel Gauge"
+ tristate "Maxim MAX17042/17047/17050/8997/8966 Fuel Gauge"
depends on I2C
help
MAX17042 is fuel-gauge systems for lithium-ion (Li+) batteries
in handheld and portable equipment. The MAX17042 is configured
to operate with a single lithium cell. MAX8997 and MAX8966 are
multi-function devices that include fuel gauages that are compatible
- with MAX17042.
+ with MAX17042. This driver also supports max17047/50 chips which are
+ improved version of max17042.
config BATTERY_Z2
tristate "Z2 battery driver"
config CHARGER_SMB347
tristate "Summit Microelectronics SMB347 Battery Charger"
depends on I2C
+ select REGMAP_I2C
help
Say Y to include support for Summit Microelectronics SMB347
Battery Charger.
{
int irq, i, ret = 0;
u8 val;
- struct abx500_bm_plat_data *plat_data;
+ struct abx500_bm_plat_data *plat_data = pdev->dev.platform_data;
+ struct ab8500_btemp *di;
+
+ if (!plat_data) {
+ dev_err(&pdev->dev, "No platform data\n");
+ return -EINVAL;
+ }
- struct ab8500_btemp *di =
- kzalloc(sizeof(struct ab8500_btemp), GFP_KERNEL);
+ di = kzalloc(sizeof(*di), GFP_KERNEL);
if (!di)
return -ENOMEM;
di->gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
/* get btemp specific platform data */
- plat_data = pdev->dev.platform_data;
di->pdata = plat_data->btemp;
if (!di->pdata) {
dev_err(di->dev, "no btemp platform data supplied\n");
static int __devinit ab8500_charger_probe(struct platform_device *pdev)
{
int irq, i, charger_status, ret = 0;
- struct abx500_bm_plat_data *plat_data;
+ struct abx500_bm_plat_data *plat_data = pdev->dev.platform_data;
+ struct ab8500_charger *di;
- struct ab8500_charger *di =
- kzalloc(sizeof(struct ab8500_charger), GFP_KERNEL);
+ if (!plat_data) {
+ dev_err(&pdev->dev, "No platform data\n");
+ return -EINVAL;
+ }
+
+ di = kzalloc(sizeof(*di), GFP_KERNEL);
if (!di)
return -ENOMEM;
spin_lock_init(&di->usb_state.usb_lock);
/* get charger specific platform data */
- plat_data = pdev->dev.platform_data;
di->pdata = plat_data->charger;
-
if (!di->pdata) {
dev_err(di->dev, "no charger platform data supplied\n");
ret = -EINVAL;
{
int i, irq;
int ret = 0;
- struct abx500_bm_plat_data *plat_data;
+ struct abx500_bm_plat_data *plat_data = pdev->dev.platform_data;
+ struct ab8500_fg *di;
+
+ if (!plat_data) {
+ dev_err(&pdev->dev, "No platform data\n");
+ return -EINVAL;
+ }
- struct ab8500_fg *di =
- kzalloc(sizeof(struct ab8500_fg), GFP_KERNEL);
+ di = kzalloc(sizeof(*di), GFP_KERNEL);
if (!di)
return -ENOMEM;
di->gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
/* get fg specific platform data */
- plat_data = pdev->dev.platform_data;
di->pdata = plat_data->fg;
if (!di->pdata) {
dev_err(di->dev, "no fg platform data supplied\n");
#include <linux/power/charger-manager.h>
#include <linux/regulator/consumer.h>
+static const char * const default_event_names[] = {
+ [CM_EVENT_UNKNOWN] = "Unknown",
+ [CM_EVENT_BATT_FULL] = "Battery Full",
+ [CM_EVENT_BATT_IN] = "Battery Inserted",
+ [CM_EVENT_BATT_OUT] = "Battery Pulled Out",
+ [CM_EVENT_EXT_PWR_IN_OUT] = "External Power Attach/Detach",
+ [CM_EVENT_CHG_START_STOP] = "Charging Start/Stop",
+ [CM_EVENT_OTHERS] = "Other battery events"
+};
+
/*
* Regard CM_JIFFIES_SMALL jiffies is small enough to ignore for
* delayed works so that we can run delayed works with CM_JIFFIES_SMALL
static bool cm_rtc_set;
static unsigned long cm_suspend_duration_ms;
+/* About normal (not suspended) monitoring */
+static unsigned long polling_jiffy = ULONG_MAX; /* ULONG_MAX: no polling */
+static unsigned long next_polling; /* Next appointed polling time */
+static struct workqueue_struct *cm_wq; /* init at driver add */
+static struct delayed_work cm_monitor_work; /* init at driver add */
+
/* Global charger-manager description */
static struct charger_global_desc *g_desc; /* init with setup_charger_manager */
int i, ret;
switch (cm->desc->battery_present) {
+ case CM_BATTERY_PRESENT:
+ present = true;
+ break;
+ case CM_NO_BATTERY:
+ break;
case CM_FUEL_GAUGE:
ret = cm->fuel_gauge->get_property(cm->fuel_gauge,
POWER_SUPPLY_PROP_PRESENT, &val);
return err;
}
+/**
+ * try_charger_restart - Restart charging.
+ * @cm: the Charger Manager representing the battery.
+ *
+ * Restart charging by turning off and on the charger.
+ */
+static int try_charger_restart(struct charger_manager *cm)
+{
+ int err;
+
+ if (cm->emergency_stop)
+ return -EAGAIN;
+
+ err = try_charger_enable(cm, false);
+ if (err)
+ return err;
+
+ return try_charger_enable(cm, true);
+}
+
/**
* uevent_notify - Let users know something has changed.
* @cm: the Charger Manager representing the battery.
dev_info(cm->dev, event);
}
+/**
+ * fullbatt_vchk - Check voltage drop some times after "FULL" event.
+ * @work: the work_struct appointing the function
+ *
+ * If a user has designated "fullbatt_vchkdrop_ms/uV" values with
+ * charger_desc, Charger Manager checks voltage drop after the battery
+ * "FULL" event. It checks whether the voltage has dropped more than
+ * fullbatt_vchkdrop_uV by calling this function after fullbatt_vchkrop_ms.
+ */
+static void fullbatt_vchk(struct work_struct *work)
+{
+ struct delayed_work *dwork = to_delayed_work(work);
+ struct charger_manager *cm = container_of(dwork,
+ struct charger_manager, fullbatt_vchk_work);
+ struct charger_desc *desc = cm->desc;
+ int batt_uV, err, diff;
+
+ /* remove the appointment for fullbatt_vchk */
+ cm->fullbatt_vchk_jiffies_at = 0;
+
+ if (!desc->fullbatt_vchkdrop_uV || !desc->fullbatt_vchkdrop_ms)
+ return;
+
+ err = get_batt_uV(cm, &batt_uV);
+ if (err) {
+ dev_err(cm->dev, "%s: get_batt_uV error(%d).\n", __func__, err);
+ return;
+ }
+
+ diff = cm->fullbatt_vchk_uV;
+ diff -= batt_uV;
+
+ dev_dbg(cm->dev, "VBATT dropped %duV after full-batt.\n", diff);
+
+ if (diff > desc->fullbatt_vchkdrop_uV) {
+ try_charger_restart(cm);
+ uevent_notify(cm, "Recharge");
+ }
+}
+
/**
* _cm_monitor - Monitor the temperature and return true for exceptions.
* @cm: the Charger Manager representing the battery.
return stop;
}
+/**
+ * _setup_polling - Setup the next instance of polling.
+ * @work: work_struct of the function _setup_polling.
+ */
+static void _setup_polling(struct work_struct *work)
+{
+ unsigned long min = ULONG_MAX;
+ struct charger_manager *cm;
+ bool keep_polling = false;
+ unsigned long _next_polling;
+
+ mutex_lock(&cm_list_mtx);
+
+ list_for_each_entry(cm, &cm_list, entry) {
+ if (is_polling_required(cm) && cm->desc->polling_interval_ms) {
+ keep_polling = true;
+
+ if (min > cm->desc->polling_interval_ms)
+ min = cm->desc->polling_interval_ms;
+ }
+ }
+
+ polling_jiffy = msecs_to_jiffies(min);
+ if (polling_jiffy <= CM_JIFFIES_SMALL)
+ polling_jiffy = CM_JIFFIES_SMALL + 1;
+
+ if (!keep_polling)
+ polling_jiffy = ULONG_MAX;
+ if (polling_jiffy == ULONG_MAX)
+ goto out;
+
+ WARN(cm_wq == NULL, "charger-manager: workqueue not initialized"
+ ". try it later. %s\n", __func__);
+
+ _next_polling = jiffies + polling_jiffy;
+
+ if (!delayed_work_pending(&cm_monitor_work) ||
+ (delayed_work_pending(&cm_monitor_work) &&
+ time_after(next_polling, _next_polling))) {
+ cancel_delayed_work_sync(&cm_monitor_work);
+ next_polling = jiffies + polling_jiffy;
+ queue_delayed_work(cm_wq, &cm_monitor_work, polling_jiffy);
+ }
+
+out:
+ mutex_unlock(&cm_list_mtx);
+}
+static DECLARE_WORK(setup_polling, _setup_polling);
+
+/**
+ * cm_monitor_poller - The Monitor / Poller.
+ * @work: work_struct of the function cm_monitor_poller
+ *
+ * During non-suspended state, cm_monitor_poller is used to poll and monitor
+ * the batteries.
+ */
+static void cm_monitor_poller(struct work_struct *work)
+{
+ cm_monitor();
+ schedule_work(&setup_polling);
+}
+
+/**
+ * fullbatt_handler - Event handler for CM_EVENT_BATT_FULL
+ * @cm: the Charger Manager representing the battery.
+ */
+static void fullbatt_handler(struct charger_manager *cm)
+{
+ struct charger_desc *desc = cm->desc;
+
+ if (!desc->fullbatt_vchkdrop_uV || !desc->fullbatt_vchkdrop_ms)
+ goto out;
+
+ if (cm_suspended)
+ device_set_wakeup_capable(cm->dev, true);
+
+ if (delayed_work_pending(&cm->fullbatt_vchk_work))
+ cancel_delayed_work(&cm->fullbatt_vchk_work);
+ queue_delayed_work(cm_wq, &cm->fullbatt_vchk_work,
+ msecs_to_jiffies(desc->fullbatt_vchkdrop_ms));
+ cm->fullbatt_vchk_jiffies_at = jiffies + msecs_to_jiffies(
+ desc->fullbatt_vchkdrop_ms);
+
+ if (cm->fullbatt_vchk_jiffies_at == 0)
+ cm->fullbatt_vchk_jiffies_at = 1;
+
+out:
+ dev_info(cm->dev, "EVENT_HANDLE: Battery Fully Charged.\n");
+ uevent_notify(cm, default_event_names[CM_EVENT_BATT_FULL]);
+}
+
+/**
+ * battout_handler - Event handler for CM_EVENT_BATT_OUT
+ * @cm: the Charger Manager representing the battery.
+ */
+static void battout_handler(struct charger_manager *cm)
+{
+ if (cm_suspended)
+ device_set_wakeup_capable(cm->dev, true);
+
+ if (!is_batt_present(cm)) {
+ dev_emerg(cm->dev, "Battery Pulled Out!\n");
+ uevent_notify(cm, default_event_names[CM_EVENT_BATT_OUT]);
+ } else {
+ uevent_notify(cm, "Battery Reinserted?");
+ }
+}
+
+/**
+ * misc_event_handler - Handler for other evnets
+ * @cm: the Charger Manager representing the battery.
+ * @type: the Charger Manager representing the battery.
+ */
+static void misc_event_handler(struct charger_manager *cm,
+ enum cm_event_types type)
+{
+ if (cm_suspended)
+ device_set_wakeup_capable(cm->dev, true);
+
+ if (!delayed_work_pending(&cm_monitor_work) &&
+ is_polling_required(cm) && cm->desc->polling_interval_ms)
+ schedule_work(&setup_polling);
+ uevent_notify(cm, default_event_names[type]);
+}
+
static int charger_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
mutex_lock(&cm_list_mtx);
list_for_each_entry(cm, &cm_list, entry) {
+ unsigned int fbchk_ms = 0;
+
+ /* fullbatt_vchk is required. setup timer for that */
+ if (cm->fullbatt_vchk_jiffies_at) {
+ fbchk_ms = jiffies_to_msecs(cm->fullbatt_vchk_jiffies_at
+ - jiffies);
+ if (time_is_before_eq_jiffies(
+ cm->fullbatt_vchk_jiffies_at) ||
+ msecs_to_jiffies(fbchk_ms) < CM_JIFFIES_SMALL) {
+ fullbatt_vchk(&cm->fullbatt_vchk_work.work);
+ fbchk_ms = 0;
+ }
+ }
+ CM_MIN_VALID(wakeup_ms, fbchk_ms);
+
/* Skip if polling is not required for this CM */
if (!is_polling_required(cm) && !cm->emergency_stop)
continue;
return false;
}
+static void _cm_fbchk_in_suspend(struct charger_manager *cm)
+{
+ unsigned long jiffy_now = jiffies;
+
+ if (!cm->fullbatt_vchk_jiffies_at)
+ return;
+
+ if (g_desc && g_desc->assume_timer_stops_in_suspend)
+ jiffy_now += msecs_to_jiffies(cm_suspend_duration_ms);
+
+ /* Execute now if it's going to be executed not too long after */
+ jiffy_now += CM_JIFFIES_SMALL;
+
+ if (time_after_eq(jiffy_now, cm->fullbatt_vchk_jiffies_at))
+ fullbatt_vchk(&cm->fullbatt_vchk_work.work);
+}
+
/**
* cm_suspend_again - Determine whether suspend again or not
*
ret = true;
mutex_lock(&cm_list_mtx);
list_for_each_entry(cm, &cm_list, entry) {
+ _cm_fbchk_in_suspend(cm);
+
if (cm->status_save_ext_pwr_inserted != is_ext_pwr_online(cm) ||
cm->status_save_batt != is_batt_present(cm)) {
ret = false;
memcpy(cm->desc, desc, sizeof(struct charger_desc));
cm->last_temp_mC = INT_MIN; /* denotes "unmeasured, yet" */
+ /*
+ * The following two do not need to be errors.
+ * Users may intentionally ignore those two features.
+ */
+ if (desc->fullbatt_uV == 0) {
+ dev_info(&pdev->dev, "Ignoring full-battery voltage threshold"
+ " as it is not supplied.");
+ }
+ if (!desc->fullbatt_vchkdrop_ms || !desc->fullbatt_vchkdrop_uV) {
+ dev_info(&pdev->dev, "Disabling full-battery voltage drop "
+ "checking mechanism as it is not supplied.");
+ desc->fullbatt_vchkdrop_ms = 0;
+ desc->fullbatt_vchkdrop_uV = 0;
+ }
+
if (!desc->charger_regulators || desc->num_charger_regulators < 1) {
ret = -EINVAL;
dev_err(&pdev->dev, "charger_regulators undefined.\n");
cm->charger_psy.num_properties++;
}
+ INIT_DELAYED_WORK(&cm->fullbatt_vchk_work, fullbatt_vchk);
+
ret = power_supply_register(NULL, &cm->charger_psy);
if (ret) {
dev_err(&pdev->dev, "Cannot register charger-manager with"
list_add(&cm->entry, &cm_list);
mutex_unlock(&cm_list_mtx);
+ /*
+ * Charger-manager is capable of waking up the systme from sleep
+ * when event is happend through cm_notify_event()
+ */
+ device_init_wakeup(&pdev->dev, true);
+ device_set_wakeup_capable(&pdev->dev, false);
+
+ schedule_work(&setup_polling);
+
return 0;
err_chg_enable:
list_del(&cm->entry);
mutex_unlock(&cm_list_mtx);
+ if (work_pending(&setup_polling))
+ cancel_work_sync(&setup_polling);
+ if (delayed_work_pending(&cm_monitor_work))
+ cancel_delayed_work_sync(&cm_monitor_work);
+
regulator_bulk_free(desc->num_charger_regulators,
desc->charger_regulators);
power_supply_unregister(&cm->charger_psy);
+
+ try_charger_enable(cm, false);
+
kfree(cm->charger_psy.properties);
kfree(cm->charger_stat);
kfree(cm->desc);
};
MODULE_DEVICE_TABLE(platform, charger_manager_id);
+static int cm_suspend_noirq(struct device *dev)
+{
+ int ret = 0;
+
+ if (device_may_wakeup(dev)) {
+ device_set_wakeup_capable(dev, false);
+ ret = -EAGAIN;
+ }
+
+ return ret;
+}
+
static int cm_suspend_prepare(struct device *dev)
{
struct charger_manager *cm = dev_get_drvdata(dev);
cm_suspended = true;
}
+ if (delayed_work_pending(&cm->fullbatt_vchk_work))
+ cancel_delayed_work(&cm->fullbatt_vchk_work);
cm->status_save_ext_pwr_inserted = is_ext_pwr_online(cm);
cm->status_save_batt = is_batt_present(cm);
cm_rtc_set = false;
}
+ /* Re-enqueue delayed work (fullbatt_vchk_work) */
+ if (cm->fullbatt_vchk_jiffies_at) {
+ unsigned long delay = 0;
+ unsigned long now = jiffies + CM_JIFFIES_SMALL;
+
+ if (time_after_eq(now, cm->fullbatt_vchk_jiffies_at)) {
+ delay = (unsigned long)((long)now
+ - (long)(cm->fullbatt_vchk_jiffies_at));
+ delay = jiffies_to_msecs(delay);
+ } else {
+ delay = 0;
+ }
+
+ /*
+ * Account for cm_suspend_duration_ms if
+ * assume_timer_stops_in_suspend is active
+ */
+ if (g_desc && g_desc->assume_timer_stops_in_suspend) {
+ if (delay > cm_suspend_duration_ms)
+ delay -= cm_suspend_duration_ms;
+ else
+ delay = 0;
+ }
+
+ queue_delayed_work(cm_wq, &cm->fullbatt_vchk_work,
+ msecs_to_jiffies(delay));
+ }
+ device_set_wakeup_capable(cm->dev, false);
uevent_notify(cm, NULL);
}
static const struct dev_pm_ops charger_manager_pm = {
.prepare = cm_suspend_prepare,
+ .suspend_noirq = cm_suspend_noirq,
.complete = cm_suspend_complete,
};
static int __init charger_manager_init(void)
{
+ cm_wq = create_freezable_workqueue("charger_manager");
+ INIT_DELAYED_WORK(&cm_monitor_work, cm_monitor_poller);
+
return platform_driver_register(&charger_manager_driver);
}
late_initcall(charger_manager_init);
static void __exit charger_manager_cleanup(void)
{
+ destroy_workqueue(cm_wq);
+ cm_wq = NULL;
+
platform_driver_unregister(&charger_manager_driver);
}
module_exit(charger_manager_cleanup);
+/**
+ * find_power_supply - find the associated power_supply of charger
+ * @cm: the Charger Manager representing the battery
+ * @psy: pointer to instance of charger's power_supply
+ */
+static bool find_power_supply(struct charger_manager *cm,
+ struct power_supply *psy)
+{
+ int i;
+ bool found = false;
+
+ for (i = 0; cm->charger_stat[i]; i++) {
+ if (psy == cm->charger_stat[i]) {
+ found = true;
+ break;
+ }
+ }
+
+ return found;
+}
+
+/**
+ * cm_notify_event - charger driver notify Charger Manager of charger event
+ * @psy: pointer to instance of charger's power_supply
+ * @type: type of charger event
+ * @msg: optional message passed to uevent_notify fuction
+ */
+void cm_notify_event(struct power_supply *psy, enum cm_event_types type,
+ char *msg)
+{
+ struct charger_manager *cm;
+ bool found_power_supply = false;
+
+ if (psy == NULL)
+ return;
+
+ mutex_lock(&cm_list_mtx);
+ list_for_each_entry(cm, &cm_list, entry) {
+ found_power_supply = find_power_supply(cm, psy);
+ if (found_power_supply)
+ break;
+ }
+ mutex_unlock(&cm_list_mtx);
+
+ if (!found_power_supply)
+ return;
+
+ switch (type) {
+ case CM_EVENT_BATT_FULL:
+ fullbatt_handler(cm);
+ break;
+ case CM_EVENT_BATT_OUT:
+ battout_handler(cm);
+ break;
+ case CM_EVENT_BATT_IN:
+ case CM_EVENT_EXT_PWR_IN_OUT ... CM_EVENT_CHG_START_STOP:
+ misc_event_handler(cm, type);
+ break;
+ case CM_EVENT_UNKNOWN:
+ case CM_EVENT_OTHERS:
+ uevent_notify(cm, msg ? msg : default_event_names[type]);
+ break;
+ default:
+ dev_err(cm->dev, "%s type not specified.\n", __func__);
+ break;
+ }
+}
+EXPORT_SYMBOL_GPL(cm_notify_event);
+
MODULE_AUTHOR("MyungJoo Ham <myungjoo.ham@samsung.com>");
MODULE_DESCRIPTION("Charger Manager");
MODULE_LICENSE("GPL");
struct power_supply *psy = to_power_supply(dev);
struct ds2781_device_info *dev_info = to_ds2781_device_info(psy);
- count = min_t(loff_t, count,
- DS2781_EEPROM_BLOCK1_END -
- DS2781_EEPROM_BLOCK1_START + 1 - off);
+ count = min_t(loff_t, count, DS2781_PARAM_EEPROM_SIZE - off);
return ds2781_read_block(dev_info, buf,
DS2781_EEPROM_BLOCK1_START + off, count);
struct ds2781_device_info *dev_info = to_ds2781_device_info(psy);
int ret;
- count = min_t(loff_t, count,
- DS2781_EEPROM_BLOCK1_END -
- DS2781_EEPROM_BLOCK1_START + 1 - off);
+ count = min_t(loff_t, count, DS2781_PARAM_EEPROM_SIZE - off);
ret = ds2781_write(dev_info, buf,
DS2781_EEPROM_BLOCK1_START + off, count);
.name = "param_eeprom",
.mode = S_IRUGO | S_IWUSR,
},
- .size = DS2781_EEPROM_BLOCK1_END - DS2781_EEPROM_BLOCK1_START + 1,
+ .size = DS2781_PARAM_EEPROM_SIZE,
.read = ds2781_read_param_eeprom_bin,
.write = ds2781_write_param_eeprom_bin,
};
struct power_supply *psy = to_power_supply(dev);
struct ds2781_device_info *dev_info = to_ds2781_device_info(psy);
- count = min_t(loff_t, count,
- DS2781_EEPROM_BLOCK0_END -
- DS2781_EEPROM_BLOCK0_START + 1 - off);
+ count = min_t(loff_t, count, DS2781_USER_EEPROM_SIZE - off);
return ds2781_read_block(dev_info, buf,
DS2781_EEPROM_BLOCK0_START + off, count);
struct ds2781_device_info *dev_info = to_ds2781_device_info(psy);
int ret;
- count = min_t(loff_t, count,
- DS2781_EEPROM_BLOCK0_END -
- DS2781_EEPROM_BLOCK0_START + 1 - off);
+ count = min_t(loff_t, count, DS2781_USER_EEPROM_SIZE - off);
ret = ds2781_write(dev_info, buf,
DS2781_EEPROM_BLOCK0_START + off, count);
.name = "user_eeprom",
.mode = S_IRUGO | S_IWUSR,
},
- .size = DS2781_EEPROM_BLOCK0_END - DS2781_EEPROM_BLOCK0_START + 1,
+ .size = DS2781_USER_EEPROM_SIZE,
.read = ds2781_read_user_eeprom_bin,
.write = ds2781_write_user_eeprom_bin,
};
fail2:
power_supply_unregister(&isp->psy);
fail1:
+ isp1704_charger_set_power(isp, 0);
usb_put_transceiver(isp->phy);
fail0:
kfree(isp);
dev_err(&pdev->dev, "failed to register isp1704 with error %d\n", ret);
- isp1704_charger_set_power(isp, 0);
return ret;
}
#include <linux/i2c.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
+#include <linux/pm.h>
#include <linux/mod_devicetable.h>
#include <linux/power_supply.h>
#include <linux/power/max17042_battery.h>
#define dP_ACC_100 0x1900
#define dP_ACC_200 0x3200
+#define MAX17042_IC_VERSION 0x0092
+#define MAX17047_IC_VERSION 0x00AC /* same for max17050 */
+
struct max17042_chip {
struct i2c_client *client;
struct power_supply battery;
+ enum max170xx_chip_type chip_type;
struct max17042_platform_data *pdata;
struct work_struct work;
int init_complete;
POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_VOLTAGE_AVG,
+ POWER_SUPPLY_PROP_VOLTAGE_OCV,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_CHARGE_FULL,
POWER_SUPPLY_PROP_TEMP,
val->intval *= 20000; /* Units of LSB = 20mV */
break;
case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
- ret = max17042_read_reg(chip->client, MAX17042_V_empty);
+ if (chip->chip_type == MAX17042)
+ ret = max17042_read_reg(chip->client, MAX17042_V_empty);
+ else
+ ret = max17042_read_reg(chip->client, MAX17047_V_empty);
if (ret < 0)
return ret;
if (ret < 0)
return ret;
+ val->intval = ret * 625 / 8;
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_OCV:
+ ret = max17042_read_reg(chip->client, MAX17042_OCVInternal);
+ if (ret < 0)
+ return ret;
+
val->intval = ret * 625 / 8;
break;
case POWER_SUPPLY_PROP_CAPACITY:
static int max17042_init_model(struct max17042_chip *chip)
{
int ret;
- int table_size =
- sizeof(chip->pdata->config_data->cell_char_tbl)/sizeof(u16);
+ int table_size = ARRAY_SIZE(chip->pdata->config_data->cell_char_tbl);
u16 *temp_data;
- temp_data = kzalloc(table_size, GFP_KERNEL);
+ temp_data = kcalloc(table_size, sizeof(*temp_data), GFP_KERNEL);
if (!temp_data)
return -ENOMEM;
static int max17042_verify_model_lock(struct max17042_chip *chip)
{
int i;
- int table_size =
- sizeof(chip->pdata->config_data->cell_char_tbl);
+ int table_size = ARRAY_SIZE(chip->pdata->config_data->cell_char_tbl);
u16 *temp_data;
int ret = 0;
- temp_data = kzalloc(table_size, GFP_KERNEL);
+ temp_data = kcalloc(table_size, sizeof(*temp_data), GFP_KERNEL);
if (!temp_data)
return -ENOMEM;
max17042_write_reg(chip->client, MAX17042_FilterCFG,
config->filter_cfg);
max17042_write_reg(chip->client, MAX17042_RelaxCFG, config->relax_cfg);
+ if (chip->chip_type == MAX17047)
+ max17042_write_reg(chip->client, MAX17047_FullSOCThr,
+ config->full_soc_thresh);
}
static void max17042_write_custom_regs(struct max17042_chip *chip)
config->rcomp0);
max17042_write_verify_reg(chip->client, MAX17042_TempCo,
config->tcompc0);
- max17042_write_reg(chip->client, MAX17042_EmptyTempCo,
- config->empty_tempco);
- max17042_write_verify_reg(chip->client, MAX17042_K_empty0,
- config->kempty0);
max17042_write_verify_reg(chip->client, MAX17042_ICHGTerm,
config->ichgt_term);
+ if (chip->chip_type == MAX17042) {
+ max17042_write_reg(chip->client, MAX17042_EmptyTempCo,
+ config->empty_tempco);
+ max17042_write_verify_reg(chip->client, MAX17042_K_empty0,
+ config->kempty0);
+ } else {
+ max17042_write_verify_reg(chip->client, MAX17047_QRTbl00,
+ config->qrtbl00);
+ max17042_write_verify_reg(chip->client, MAX17047_QRTbl10,
+ config->qrtbl10);
+ max17042_write_verify_reg(chip->client, MAX17047_QRTbl20,
+ config->qrtbl20);
+ max17042_write_verify_reg(chip->client, MAX17047_QRTbl30,
+ config->qrtbl30);
+ }
}
static void max17042_update_capacity_regs(struct max17042_chip *chip)
config->design_cap);
max17042_write_verify_reg(chip->client, MAX17042_FullCAPNom,
config->fullcapnom);
+ /* Update SOC register with new SOC */
+ max17042_write_reg(chip->client, MAX17042_RepSOC, vfSoc);
}
/*
max17042_override_por(client, MAX17042_FullCAP, config->fullcap);
max17042_override_por(client, MAX17042_FullCAPNom, config->fullcapnom);
- max17042_override_por(client, MAX17042_SOC_empty, config->socempty);
+ if (chip->chip_type == MAX17042)
+ max17042_override_por(client, MAX17042_SOC_empty,
+ config->socempty);
max17042_override_por(client, MAX17042_LAvg_empty, config->lavg_empty);
max17042_override_por(client, MAX17042_dQacc, config->dqacc);
max17042_override_por(client, MAX17042_dPacc, config->dpacc);
- max17042_override_por(client, MAX17042_V_empty, config->vempty);
+ if (chip->chip_type == MAX17042)
+ max17042_override_por(client, MAX17042_V_empty, config->vempty);
+ else
+ max17042_override_por(client, MAX17047_V_empty, config->vempty);
max17042_override_por(client, MAX17042_TempNom, config->temp_nom);
max17042_override_por(client, MAX17042_TempLim, config->temp_lim);
max17042_override_por(client, MAX17042_FCTC, config->fctc);
max17042_override_por(client, MAX17042_RCOMP0, config->rcomp0);
max17042_override_por(client, MAX17042_TempCo, config->tcompc0);
- max17042_override_por(client, MAX17042_EmptyTempCo,
- config->empty_tempco);
- max17042_override_por(client, MAX17042_K_empty0, config->kempty0);
+ if (chip->chip_type) {
+ max17042_override_por(client, MAX17042_EmptyTempCo,
+ config->empty_tempco);
+ max17042_override_por(client, MAX17042_K_empty0,
+ config->kempty0);
+ }
}
static int max17042_init_chip(struct max17042_chip *chip)
i2c_set_clientdata(client, chip);
- chip->battery.name = "max17042_battery";
+ ret = max17042_read_reg(chip->client, MAX17042_DevName);
+ if (ret == MAX17042_IC_VERSION) {
+ dev_dbg(&client->dev, "chip type max17042 detected\n");
+ chip->chip_type = MAX17042;
+ } else if (ret == MAX17047_IC_VERSION) {
+ dev_dbg(&client->dev, "chip type max17047/50 detected\n");
+ chip->chip_type = MAX17047;
+ } else {
+ dev_err(&client->dev, "device version mismatch: %x\n", ret);
+ return -EIO;
+ }
+
+ chip->battery.name = "max170xx_battery";
chip->battery.type = POWER_SUPPLY_TYPE_BATTERY;
chip->battery.get_property = max17042_get_property;
chip->battery.properties = max17042_battery_props;
max17042_write_reg(client, MAX17042_LearnCFG, 0x0007);
}
+ ret = power_supply_register(&client->dev, &chip->battery);
+ if (ret) {
+ dev_err(&client->dev, "failed: power supply register\n");
+ return ret;
+ }
+
if (client->irq) {
ret = request_threaded_irq(client->irq, NULL,
max17042_thread_handler,
reg |= CONFIG_ALRT_BIT_ENBL;
max17042_write_reg(client, MAX17042_CONFIG, reg);
max17042_set_soc_threshold(chip, 1);
- } else
+ } else {
+ client->irq = 0;
dev_err(&client->dev, "%s(): cannot get IRQ\n",
__func__);
+ }
}
reg = max17042_read_reg(chip->client, MAX17042_STATUS);
-
if (reg & STATUS_POR_BIT) {
INIT_WORK(&chip->work, max17042_init_worker);
schedule_work(&chip->work);
chip->init_complete = 1;
}
- ret = power_supply_register(&client->dev, &chip->battery);
- if (ret)
- dev_err(&client->dev, "failed: power supply register\n");
- return ret;
+ return 0;
}
static int __devexit max17042_remove(struct i2c_client *client)
{
struct max17042_chip *chip = i2c_get_clientdata(client);
+ if (client->irq)
+ free_irq(client->irq, chip);
power_supply_unregister(&chip->battery);
return 0;
}
+#ifdef CONFIG_PM
+static int max17042_suspend(struct device *dev)
+{
+ struct max17042_chip *chip = dev_get_drvdata(dev);
+
+ /*
+ * disable the irq and enable irq_wake
+ * capability to the interrupt line.
+ */
+ if (chip->client->irq) {
+ disable_irq(chip->client->irq);
+ enable_irq_wake(chip->client->irq);
+ }
+
+ return 0;
+}
+
+static int max17042_resume(struct device *dev)
+{
+ struct max17042_chip *chip = dev_get_drvdata(dev);
+
+ if (chip->client->irq) {
+ disable_irq_wake(chip->client->irq);
+ enable_irq(chip->client->irq);
+ /* re-program the SOC thresholds to 1% change */
+ max17042_set_soc_threshold(chip, 1);
+ }
+
+ return 0;
+}
+
+static const struct dev_pm_ops max17042_pm_ops = {
+ .suspend = max17042_suspend,
+ .resume = max17042_resume,
+};
+
+#define MAX17042_PM_OPS (&max17042_pm_ops)
+#else
+#define MAX17042_PM_OPS NULL
+#endif
+
#ifdef CONFIG_OF
static const struct of_device_id max17042_dt_match[] = {
{ .compatible = "maxim,max17042" },
+ { .compatible = "maxim,max17047" },
+ { .compatible = "maxim,max17050" },
{ },
};
MODULE_DEVICE_TABLE(of, max17042_dt_match);
static const struct i2c_device_id max17042_id[] = {
{ "max17042", 0 },
+ { "max17047", 1 },
+ { "max17050", 2 },
{ }
};
MODULE_DEVICE_TABLE(i2c, max17042_id);
.driver = {
.name = "max17042",
.of_match_table = of_match_ptr(max17042_dt_match),
+ .pm = MAX17042_PM_OPS,
},
.probe = max17042_probe,
.remove = __devexit_p(max17042_remove),
POWER_SUPPLY_ATTR(voltage_min_design),
POWER_SUPPLY_ATTR(voltage_now),
POWER_SUPPLY_ATTR(voltage_avg),
+ POWER_SUPPLY_ATTR(voltage_ocv),
POWER_SUPPLY_ATTR(current_max),
POWER_SUPPLY_ATTR(current_now),
POWER_SUPPLY_ATTR(current_avg),
[REG_CURRENT] =
SBS_DATA(POWER_SUPPLY_PROP_CURRENT_NOW, 0x0A, -32768, 32767),
[REG_CAPACITY] =
- SBS_DATA(POWER_SUPPLY_PROP_CAPACITY, 0x0E, 0, 100),
+ SBS_DATA(POWER_SUPPLY_PROP_CAPACITY, 0x0D, 0, 100),
[REG_REMAINING_CAPACITY] =
SBS_DATA(POWER_SUPPLY_PROP_ENERGY_NOW, 0x0F, 0, 65535),
[REG_REMAINING_CAPACITY_CHARGE] =
* published by the Free Software Foundation.
*/
-#include <linux/debugfs.h>
+#include <linux/err.h>
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/power_supply.h>
#include <linux/power/smb347-charger.h>
-#include <linux/seq_file.h>
+#include <linux/regmap.h>
/*
* Configuration registers. These are mirrored to volatile RAM and can be
#define CFG_CURRENT_LIMIT_DC_SHIFT 4
#define CFG_CURRENT_LIMIT_USB_MASK 0x0f
#define CFG_FLOAT_VOLTAGE 0x03
+#define CFG_FLOAT_VOLTAGE_FLOAT_MASK 0x3f
#define CFG_FLOAT_VOLTAGE_THRESHOLD_MASK 0xc0
#define CFG_FLOAT_VOLTAGE_THRESHOLD_SHIFT 6
#define CFG_STAT 0x05
#define STAT_C_CHARGER_ERROR BIT(6)
#define STAT_E 0x3f
+#define SMB347_MAX_REGISTER 0x3f
+
/**
* struct smb347_charger - smb347 charger instance
* @lock: protects concurrent access to online variables
- * @client: pointer to i2c client
+ * @dev: pointer to device
+ * @regmap: pointer to driver regmap
* @mains: power_supply instance for AC/DC power
* @usb: power_supply instance for USB power
* @battery: power_supply instance for battery
* @mains_online: is AC/DC input connected
* @usb_online: is USB input connected
* @charging_enabled: is charging enabled
- * @dentry: for debugfs
* @pdata: pointer to platform data
*/
struct smb347_charger {
struct mutex lock;
- struct i2c_client *client;
+ struct device *dev;
+ struct regmap *regmap;
struct power_supply mains;
struct power_supply usb;
struct power_supply battery;
bool mains_online;
bool usb_online;
bool charging_enabled;
- struct dentry *dentry;
const struct smb347_charger_platform_data *pdata;
};
1200000,
};
-/* Convert register value to current using lookup table */
-static int hw_to_current(const unsigned int *tbl, size_t size, unsigned int val)
-{
- if (val >= size)
- return -EINVAL;
- return tbl[val];
-}
-
/* Convert current to register value using lookup table */
static int current_to_hw(const unsigned int *tbl, size_t size, unsigned int val)
{
return i > 0 ? i - 1 : -EINVAL;
}
-static int smb347_read(struct smb347_charger *smb, u8 reg)
-{
- int ret;
-
- ret = i2c_smbus_read_byte_data(smb->client, reg);
- if (ret < 0)
- dev_warn(&smb->client->dev, "failed to read reg 0x%x: %d\n",
- reg, ret);
- return ret;
-}
-
-static int smb347_write(struct smb347_charger *smb, u8 reg, u8 val)
-{
- int ret;
-
- ret = i2c_smbus_write_byte_data(smb->client, reg, val);
- if (ret < 0)
- dev_warn(&smb->client->dev, "failed to write reg 0x%x: %d\n",
- reg, ret);
- return ret;
-}
-
/**
- * smb347_update_status - updates the charging status
+ * smb347_update_ps_status - refreshes the power source status
* @smb: pointer to smb347 charger instance
*
- * Function checks status of the charging and updates internal state
- * accordingly. Returns %0 if there is no change in status, %1 if the
- * status has changed and negative errno in case of failure.
+ * Function checks whether any power source is connected to the charger and
+ * updates internal state accordingly. If there is a change to previous state
+ * function returns %1, otherwise %0 and negative errno in case of errror.
*/
-static int smb347_update_status(struct smb347_charger *smb)
+static int smb347_update_ps_status(struct smb347_charger *smb)
{
bool usb = false;
bool dc = false;
+ unsigned int val;
int ret;
- ret = smb347_read(smb, IRQSTAT_E);
+ ret = regmap_read(smb->regmap, IRQSTAT_E, &val);
if (ret < 0)
return ret;
* platform data _and_ whether corresponding undervoltage is set.
*/
if (smb->pdata->use_mains)
- dc = !(ret & IRQSTAT_E_DCIN_UV_STAT);
+ dc = !(val & IRQSTAT_E_DCIN_UV_STAT);
if (smb->pdata->use_usb)
- usb = !(ret & IRQSTAT_E_USBIN_UV_STAT);
+ usb = !(val & IRQSTAT_E_USBIN_UV_STAT);
mutex_lock(&smb->lock);
ret = smb->mains_online != dc || smb->usb_online != usb;
}
/*
- * smb347_is_online - returns whether input power source is connected
+ * smb347_is_ps_online - returns whether input power source is connected
* @smb: pointer to smb347 charger instance
*
* Returns %true if input power source is connected. Note that this is
* dependent on what platform has configured for usable power sources. For
- * example if USB is disabled, this will return %false even if the USB
- * cable is connected.
+ * example if USB is disabled, this will return %false even if the USB cable
+ * is connected.
*/
-static bool smb347_is_online(struct smb347_charger *smb)
+static bool smb347_is_ps_online(struct smb347_charger *smb)
{
bool ret;
*/
static int smb347_charging_status(struct smb347_charger *smb)
{
+ unsigned int val;
int ret;
- if (!smb347_is_online(smb))
+ if (!smb347_is_ps_online(smb))
return 0;
- ret = smb347_read(smb, STAT_C);
+ ret = regmap_read(smb->regmap, STAT_C, &val);
if (ret < 0)
return 0;
- return (ret & STAT_C_CHG_MASK) >> STAT_C_CHG_SHIFT;
+ return (val & STAT_C_CHG_MASK) >> STAT_C_CHG_SHIFT;
}
static int smb347_charging_set(struct smb347_charger *smb, bool enable)
int ret = 0;
if (smb->pdata->enable_control != SMB347_CHG_ENABLE_SW) {
- dev_dbg(&smb->client->dev,
- "charging enable/disable in SW disabled\n");
+ dev_dbg(smb->dev, "charging enable/disable in SW disabled\n");
return 0;
}
mutex_lock(&smb->lock);
if (smb->charging_enabled != enable) {
- ret = smb347_read(smb, CMD_A);
- if (ret < 0)
- goto out;
-
- smb->charging_enabled = enable;
-
- if (enable)
- ret |= CMD_A_CHG_ENABLED;
- else
- ret &= ~CMD_A_CHG_ENABLED;
-
- ret = smb347_write(smb, CMD_A, ret);
+ ret = regmap_update_bits(smb->regmap, CMD_A, CMD_A_CHG_ENABLED,
+ enable ? CMD_A_CHG_ENABLED : 0);
+ if (!ret)
+ smb->charging_enabled = enable;
}
-out:
mutex_unlock(&smb->lock);
return ret;
}
return smb347_charging_set(smb, false);
}
-static int smb347_update_online(struct smb347_charger *smb)
+static int smb347_start_stop_charging(struct smb347_charger *smb)
{
int ret;
* disable or enable the charging. We do it manually because it
* depends on how the platform has configured the valid inputs.
*/
- if (smb347_is_online(smb)) {
+ if (smb347_is_ps_online(smb)) {
ret = smb347_charging_enable(smb);
if (ret < 0)
- dev_err(&smb->client->dev,
- "failed to enable charging\n");
+ dev_err(smb->dev, "failed to enable charging\n");
} else {
ret = smb347_charging_disable(smb);
if (ret < 0)
- dev_err(&smb->client->dev,
- "failed to disable charging\n");
+ dev_err(smb->dev, "failed to disable charging\n");
}
return ret;
static int smb347_set_charge_current(struct smb347_charger *smb)
{
- int ret, val;
-
- ret = smb347_read(smb, CFG_CHARGE_CURRENT);
- if (ret < 0)
- return ret;
+ int ret;
if (smb->pdata->max_charge_current) {
- val = current_to_hw(fcc_tbl, ARRAY_SIZE(fcc_tbl),
+ ret = current_to_hw(fcc_tbl, ARRAY_SIZE(fcc_tbl),
smb->pdata->max_charge_current);
- if (val < 0)
- return val;
+ if (ret < 0)
+ return ret;
- ret &= ~CFG_CHARGE_CURRENT_FCC_MASK;
- ret |= val << CFG_CHARGE_CURRENT_FCC_SHIFT;
+ ret = regmap_update_bits(smb->regmap, CFG_CHARGE_CURRENT,
+ CFG_CHARGE_CURRENT_FCC_MASK,
+ ret << CFG_CHARGE_CURRENT_FCC_SHIFT);
+ if (ret < 0)
+ return ret;
}
if (smb->pdata->pre_charge_current) {
- val = current_to_hw(pcc_tbl, ARRAY_SIZE(pcc_tbl),
+ ret = current_to_hw(pcc_tbl, ARRAY_SIZE(pcc_tbl),
smb->pdata->pre_charge_current);
- if (val < 0)
- return val;
+ if (ret < 0)
+ return ret;
- ret &= ~CFG_CHARGE_CURRENT_PCC_MASK;
- ret |= val << CFG_CHARGE_CURRENT_PCC_SHIFT;
+ ret = regmap_update_bits(smb->regmap, CFG_CHARGE_CURRENT,
+ CFG_CHARGE_CURRENT_PCC_MASK,
+ ret << CFG_CHARGE_CURRENT_PCC_SHIFT);
+ if (ret < 0)
+ return ret;
}
if (smb->pdata->termination_current) {
- val = current_to_hw(tc_tbl, ARRAY_SIZE(tc_tbl),
+ ret = current_to_hw(tc_tbl, ARRAY_SIZE(tc_tbl),
smb->pdata->termination_current);
- if (val < 0)
- return val;
+ if (ret < 0)
+ return ret;
- ret &= ~CFG_CHARGE_CURRENT_TC_MASK;
- ret |= val;
+ ret = regmap_update_bits(smb->regmap, CFG_CHARGE_CURRENT,
+ CFG_CHARGE_CURRENT_TC_MASK, ret);
+ if (ret < 0)
+ return ret;
}
- return smb347_write(smb, CFG_CHARGE_CURRENT, ret);
+ return 0;
}
static int smb347_set_current_limits(struct smb347_charger *smb)
{
- int ret, val;
-
- ret = smb347_read(smb, CFG_CURRENT_LIMIT);
- if (ret < 0)
- return ret;
+ int ret;
if (smb->pdata->mains_current_limit) {
- val = current_to_hw(icl_tbl, ARRAY_SIZE(icl_tbl),
+ ret = current_to_hw(icl_tbl, ARRAY_SIZE(icl_tbl),
smb->pdata->mains_current_limit);
- if (val < 0)
- return val;
+ if (ret < 0)
+ return ret;
- ret &= ~CFG_CURRENT_LIMIT_DC_MASK;
- ret |= val << CFG_CURRENT_LIMIT_DC_SHIFT;
+ ret = regmap_update_bits(smb->regmap, CFG_CURRENT_LIMIT,
+ CFG_CURRENT_LIMIT_DC_MASK,
+ ret << CFG_CURRENT_LIMIT_DC_SHIFT);
+ if (ret < 0)
+ return ret;
}
if (smb->pdata->usb_hc_current_limit) {
- val = current_to_hw(icl_tbl, ARRAY_SIZE(icl_tbl),
+ ret = current_to_hw(icl_tbl, ARRAY_SIZE(icl_tbl),
smb->pdata->usb_hc_current_limit);
- if (val < 0)
- return val;
+ if (ret < 0)
+ return ret;
- ret &= ~CFG_CURRENT_LIMIT_USB_MASK;
- ret |= val;
+ ret = regmap_update_bits(smb->regmap, CFG_CURRENT_LIMIT,
+ CFG_CURRENT_LIMIT_USB_MASK, ret);
+ if (ret < 0)
+ return ret;
}
- return smb347_write(smb, CFG_CURRENT_LIMIT, ret);
+ return 0;
}
static int smb347_set_voltage_limits(struct smb347_charger *smb)
{
- int ret, val;
-
- ret = smb347_read(smb, CFG_FLOAT_VOLTAGE);
- if (ret < 0)
- return ret;
+ int ret;
if (smb->pdata->pre_to_fast_voltage) {
- val = smb->pdata->pre_to_fast_voltage;
+ ret = smb->pdata->pre_to_fast_voltage;
/* uV */
- val = clamp_val(val, 2400000, 3000000) - 2400000;
- val /= 200000;
+ ret = clamp_val(ret, 2400000, 3000000) - 2400000;
+ ret /= 200000;
- ret &= ~CFG_FLOAT_VOLTAGE_THRESHOLD_MASK;
- ret |= val << CFG_FLOAT_VOLTAGE_THRESHOLD_SHIFT;
+ ret = regmap_update_bits(smb->regmap, CFG_FLOAT_VOLTAGE,
+ CFG_FLOAT_VOLTAGE_THRESHOLD_MASK,
+ ret << CFG_FLOAT_VOLTAGE_THRESHOLD_SHIFT);
+ if (ret < 0)
+ return ret;
}
if (smb->pdata->max_charge_voltage) {
- val = smb->pdata->max_charge_voltage;
+ ret = smb->pdata->max_charge_voltage;
/* uV */
- val = clamp_val(val, 3500000, 4500000) - 3500000;
- val /= 20000;
+ ret = clamp_val(ret, 3500000, 4500000) - 3500000;
+ ret /= 20000;
- ret |= val;
+ ret = regmap_update_bits(smb->regmap, CFG_FLOAT_VOLTAGE,
+ CFG_FLOAT_VOLTAGE_FLOAT_MASK, ret);
+ if (ret < 0)
+ return ret;
}
- return smb347_write(smb, CFG_FLOAT_VOLTAGE, ret);
+ return 0;
}
static int smb347_set_temp_limits(struct smb347_charger *smb)
{
bool enable_therm_monitor = false;
- int ret, val;
+ int ret = 0;
+ int val;
if (smb->pdata->chip_temp_threshold) {
val = smb->pdata->chip_temp_threshold;
val = clamp_val(val, 100, 130) - 100;
val /= 10;
- ret = smb347_read(smb, CFG_OTG);
- if (ret < 0)
- return ret;
-
- ret &= ~CFG_OTG_TEMP_THRESHOLD_MASK;
- ret |= val << CFG_OTG_TEMP_THRESHOLD_SHIFT;
-
- ret = smb347_write(smb, CFG_OTG, ret);
+ ret = regmap_update_bits(smb->regmap, CFG_OTG,
+ CFG_OTG_TEMP_THRESHOLD_MASK,
+ val << CFG_OTG_TEMP_THRESHOLD_SHIFT);
if (ret < 0)
return ret;
}
- ret = smb347_read(smb, CFG_TEMP_LIMIT);
- if (ret < 0)
- return ret;
-
if (smb->pdata->soft_cold_temp_limit != SMB347_TEMP_USE_DEFAULT) {
val = smb->pdata->soft_cold_temp_limit;
/* this goes from higher to lower so invert the value */
val = ~val & 0x3;
- ret &= ~CFG_TEMP_LIMIT_SOFT_COLD_MASK;
- ret |= val << CFG_TEMP_LIMIT_SOFT_COLD_SHIFT;
+ ret = regmap_update_bits(smb->regmap, CFG_TEMP_LIMIT,
+ CFG_TEMP_LIMIT_SOFT_COLD_MASK,
+ val << CFG_TEMP_LIMIT_SOFT_COLD_SHIFT);
+ if (ret < 0)
+ return ret;
enable_therm_monitor = true;
}
val = clamp_val(val, 40, 55) - 40;
val /= 5;
- ret &= ~CFG_TEMP_LIMIT_SOFT_HOT_MASK;
- ret |= val << CFG_TEMP_LIMIT_SOFT_HOT_SHIFT;
+ ret = regmap_update_bits(smb->regmap, CFG_TEMP_LIMIT,
+ CFG_TEMP_LIMIT_SOFT_HOT_MASK,
+ val << CFG_TEMP_LIMIT_SOFT_HOT_SHIFT);
+ if (ret < 0)
+ return ret;
enable_therm_monitor = true;
}
/* this goes from higher to lower so invert the value */
val = ~val & 0x3;
- ret &= ~CFG_TEMP_LIMIT_HARD_COLD_MASK;
- ret |= val << CFG_TEMP_LIMIT_HARD_COLD_SHIFT;
+ ret = regmap_update_bits(smb->regmap, CFG_TEMP_LIMIT,
+ CFG_TEMP_LIMIT_HARD_COLD_MASK,
+ val << CFG_TEMP_LIMIT_HARD_COLD_SHIFT);
+ if (ret < 0)
+ return ret;
enable_therm_monitor = true;
}
val = clamp_val(val, 50, 65) - 50;
val /= 5;
- ret &= ~CFG_TEMP_LIMIT_HARD_HOT_MASK;
- ret |= val << CFG_TEMP_LIMIT_HARD_HOT_SHIFT;
+ ret = regmap_update_bits(smb->regmap, CFG_TEMP_LIMIT,
+ CFG_TEMP_LIMIT_HARD_HOT_MASK,
+ val << CFG_TEMP_LIMIT_HARD_HOT_SHIFT);
+ if (ret < 0)
+ return ret;
enable_therm_monitor = true;
}
- ret = smb347_write(smb, CFG_TEMP_LIMIT, ret);
- if (ret < 0)
- return ret;
-
/*
* If any of the temperature limits are set, we also enable the
* thermistor monitoring.
* depending on the configuration.
*/
if (enable_therm_monitor) {
- ret = smb347_read(smb, CFG_THERM);
- if (ret < 0)
- return ret;
-
- ret &= ~CFG_THERM_MONITOR_DISABLED;
-
- ret = smb347_write(smb, CFG_THERM, ret);
+ ret = regmap_update_bits(smb->regmap, CFG_THERM,
+ CFG_THERM_MONITOR_DISABLED, 0);
if (ret < 0)
return ret;
}
if (smb->pdata->suspend_on_hard_temp_limit) {
- ret = smb347_read(smb, CFG_SYSOK);
- if (ret < 0)
- return ret;
-
- ret &= ~CFG_SYSOK_SUSPEND_HARD_LIMIT_DISABLED;
-
- ret = smb347_write(smb, CFG_SYSOK, ret);
+ ret = regmap_update_bits(smb->regmap, CFG_SYSOK,
+ CFG_SYSOK_SUSPEND_HARD_LIMIT_DISABLED, 0);
if (ret < 0)
return ret;
}
SMB347_SOFT_TEMP_COMPENSATE_DEFAULT) {
val = smb->pdata->soft_temp_limit_compensation & 0x3;
- ret = smb347_read(smb, CFG_THERM);
+ ret = regmap_update_bits(smb->regmap, CFG_THERM,
+ CFG_THERM_SOFT_HOT_COMPENSATION_MASK,
+ val << CFG_THERM_SOFT_HOT_COMPENSATION_SHIFT);
if (ret < 0)
return ret;
- ret &= ~CFG_THERM_SOFT_HOT_COMPENSATION_MASK;
- ret |= val << CFG_THERM_SOFT_HOT_COMPENSATION_SHIFT;
-
- ret &= ~CFG_THERM_SOFT_COLD_COMPENSATION_MASK;
- ret |= val << CFG_THERM_SOFT_COLD_COMPENSATION_SHIFT;
-
- ret = smb347_write(smb, CFG_THERM, ret);
+ ret = regmap_update_bits(smb->regmap, CFG_THERM,
+ CFG_THERM_SOFT_COLD_COMPENSATION_MASK,
+ val << CFG_THERM_SOFT_COLD_COMPENSATION_SHIFT);
if (ret < 0)
return ret;
}
if (val < 0)
return val;
- ret = smb347_read(smb, CFG_OTG);
- if (ret < 0)
- return ret;
-
- ret &= ~CFG_OTG_CC_COMPENSATION_MASK;
- ret |= (val & 0x3) << CFG_OTG_CC_COMPENSATION_SHIFT;
-
- ret = smb347_write(smb, CFG_OTG, ret);
+ ret = regmap_update_bits(smb->regmap, CFG_OTG,
+ CFG_OTG_CC_COMPENSATION_MASK,
+ (val & 0x3) << CFG_OTG_CC_COMPENSATION_SHIFT);
if (ret < 0)
return ret;
}
*/
static int smb347_set_writable(struct smb347_charger *smb, bool writable)
{
- int ret;
-
- ret = smb347_read(smb, CMD_A);
- if (ret < 0)
- return ret;
-
- if (writable)
- ret |= CMD_A_ALLOW_WRITE;
- else
- ret &= ~CMD_A_ALLOW_WRITE;
-
- return smb347_write(smb, CMD_A, ret);
+ return regmap_update_bits(smb->regmap, CMD_A, CMD_A_ALLOW_WRITE,
+ writable ? CMD_A_ALLOW_WRITE : 0);
}
static int smb347_hw_init(struct smb347_charger *smb)
{
+ unsigned int val;
int ret;
ret = smb347_set_writable(smb, true);
/* If USB charging is disabled we put the USB in suspend mode */
if (!smb->pdata->use_usb) {
- ret = smb347_read(smb, CMD_A);
- if (ret < 0)
- goto fail;
-
- ret |= CMD_A_SUSPEND_ENABLED;
-
- ret = smb347_write(smb, CMD_A, ret);
+ ret = regmap_update_bits(smb->regmap, CMD_A,
+ CMD_A_SUSPEND_ENABLED,
+ CMD_A_SUSPEND_ENABLED);
if (ret < 0)
goto fail;
}
- ret = smb347_read(smb, CFG_OTHER);
- if (ret < 0)
- goto fail;
-
/*
* If configured by platform data, we enable hardware Auto-OTG
* support for driving VBUS. Otherwise we disable it.
*/
- ret &= ~CFG_OTHER_RID_MASK;
- if (smb->pdata->use_usb_otg)
- ret |= CFG_OTHER_RID_ENABLED_AUTO_OTG;
-
- ret = smb347_write(smb, CFG_OTHER, ret);
- if (ret < 0)
- goto fail;
-
- ret = smb347_read(smb, CFG_PIN);
+ ret = regmap_update_bits(smb->regmap, CFG_OTHER, CFG_OTHER_RID_MASK,
+ smb->pdata->use_usb_otg ? CFG_OTHER_RID_ENABLED_AUTO_OTG : 0);
if (ret < 0)
goto fail;
* command register unless pin control is specified in the platform
* data.
*/
- ret &= ~CFG_PIN_EN_CTRL_MASK;
-
switch (smb->pdata->enable_control) {
- case SMB347_CHG_ENABLE_SW:
- /* Do nothing, 0 means i2c control */
- break;
case SMB347_CHG_ENABLE_PIN_ACTIVE_LOW:
- ret |= CFG_PIN_EN_CTRL_ACTIVE_LOW;
+ val = CFG_PIN_EN_CTRL_ACTIVE_LOW;
break;
case SMB347_CHG_ENABLE_PIN_ACTIVE_HIGH:
- ret |= CFG_PIN_EN_CTRL_ACTIVE_HIGH;
+ val = CFG_PIN_EN_CTRL_ACTIVE_HIGH;
+ break;
+ default:
+ val = 0;
break;
}
- /* Disable Automatic Power Source Detection (APSD) interrupt. */
- ret &= ~CFG_PIN_EN_APSD_IRQ;
+ ret = regmap_update_bits(smb->regmap, CFG_PIN, CFG_PIN_EN_CTRL_MASK,
+ val);
+ if (ret < 0)
+ goto fail;
- ret = smb347_write(smb, CFG_PIN, ret);
+ /* Disable Automatic Power Source Detection (APSD) interrupt. */
+ ret = regmap_update_bits(smb->regmap, CFG_PIN, CFG_PIN_EN_APSD_IRQ, 0);
if (ret < 0)
goto fail;
- ret = smb347_update_status(smb);
+ ret = smb347_update_ps_status(smb);
if (ret < 0)
goto fail;
- ret = smb347_update_online(smb);
+ ret = smb347_start_stop_charging(smb);
fail:
smb347_set_writable(smb, false);
static irqreturn_t smb347_interrupt(int irq, void *data)
{
struct smb347_charger *smb = data;
- int stat_c, irqstat_e, irqstat_c;
- irqreturn_t ret = IRQ_NONE;
+ unsigned int stat_c, irqstat_e, irqstat_c;
+ bool handled = false;
+ int ret;
- stat_c = smb347_read(smb, STAT_C);
- if (stat_c < 0) {
- dev_warn(&smb->client->dev, "reading STAT_C failed\n");
+ ret = regmap_read(smb->regmap, STAT_C, &stat_c);
+ if (ret < 0) {
+ dev_warn(smb->dev, "reading STAT_C failed\n");
return IRQ_NONE;
}
- irqstat_c = smb347_read(smb, IRQSTAT_C);
- if (irqstat_c < 0) {
- dev_warn(&smb->client->dev, "reading IRQSTAT_C failed\n");
+ ret = regmap_read(smb->regmap, IRQSTAT_C, &irqstat_c);
+ if (ret < 0) {
+ dev_warn(smb->dev, "reading IRQSTAT_C failed\n");
return IRQ_NONE;
}
- irqstat_e = smb347_read(smb, IRQSTAT_E);
- if (irqstat_e < 0) {
- dev_warn(&smb->client->dev, "reading IRQSTAT_E failed\n");
+ ret = regmap_read(smb->regmap, IRQSTAT_E, &irqstat_e);
+ if (ret < 0) {
+ dev_warn(smb->dev, "reading IRQSTAT_E failed\n");
return IRQ_NONE;
}
* disable charging.
*/
if (stat_c & STAT_C_CHARGER_ERROR) {
- dev_err(&smb->client->dev,
- "error in charger, disabling charging\n");
+ dev_err(smb->dev, "error in charger, disabling charging\n");
smb347_charging_disable(smb);
power_supply_changed(&smb->battery);
-
- ret = IRQ_HANDLED;
+ handled = true;
}
/*
if (irqstat_c & (IRQSTAT_C_TERMINATION_IRQ | IRQSTAT_C_TAPER_IRQ)) {
if (irqstat_c & IRQSTAT_C_TERMINATION_STAT)
power_supply_changed(&smb->battery);
- ret = IRQ_HANDLED;
+ handled = true;
}
/*
* was connected or disconnected.
*/
if (irqstat_e & (IRQSTAT_E_USBIN_UV_IRQ | IRQSTAT_E_DCIN_UV_IRQ)) {
- if (smb347_update_status(smb) > 0) {
- smb347_update_online(smb);
- power_supply_changed(&smb->mains);
- power_supply_changed(&smb->usb);
+ if (smb347_update_ps_status(smb) > 0) {
+ smb347_start_stop_charging(smb);
+ if (smb->pdata->use_mains)
+ power_supply_changed(&smb->mains);
+ if (smb->pdata->use_usb)
+ power_supply_changed(&smb->usb);
}
- ret = IRQ_HANDLED;
+ handled = true;
}
- return ret;
+ return handled ? IRQ_HANDLED : IRQ_NONE;
}
static int smb347_irq_set(struct smb347_charger *smb, bool enable)
* - termination current reached
* - charger error
*/
- if (enable) {
- ret = smb347_write(smb, CFG_FAULT_IRQ, CFG_FAULT_IRQ_DCIN_UV);
- if (ret < 0)
- goto fail;
-
- ret = smb347_write(smb, CFG_STATUS_IRQ,
- CFG_STATUS_IRQ_TERMINATION_OR_TAPER);
- if (ret < 0)
- goto fail;
-
- ret = smb347_read(smb, CFG_PIN);
- if (ret < 0)
- goto fail;
-
- ret |= CFG_PIN_EN_CHARGER_ERROR;
-
- ret = smb347_write(smb, CFG_PIN, ret);
- } else {
- ret = smb347_write(smb, CFG_FAULT_IRQ, 0);
- if (ret < 0)
- goto fail;
-
- ret = smb347_write(smb, CFG_STATUS_IRQ, 0);
- if (ret < 0)
- goto fail;
-
- ret = smb347_read(smb, CFG_PIN);
- if (ret < 0)
- goto fail;
-
- ret &= ~CFG_PIN_EN_CHARGER_ERROR;
+ ret = regmap_update_bits(smb->regmap, CFG_FAULT_IRQ, 0xff,
+ enable ? CFG_FAULT_IRQ_DCIN_UV : 0);
+ if (ret < 0)
+ goto fail;
- ret = smb347_write(smb, CFG_PIN, ret);
- }
+ ret = regmap_update_bits(smb->regmap, CFG_STATUS_IRQ, 0xff,
+ enable ? CFG_STATUS_IRQ_TERMINATION_OR_TAPER : 0);
+ if (ret < 0)
+ goto fail;
+ ret = regmap_update_bits(smb->regmap, CFG_PIN, CFG_PIN_EN_CHARGER_ERROR,
+ enable ? CFG_PIN_EN_CHARGER_ERROR : 0);
fail:
smb347_set_writable(smb, false);
return ret;
return smb347_irq_set(smb, false);
}
-static int smb347_irq_init(struct smb347_charger *smb)
+static int smb347_irq_init(struct smb347_charger *smb,
+ struct i2c_client *client)
{
const struct smb347_charger_platform_data *pdata = smb->pdata;
int ret, irq = gpio_to_irq(pdata->irq_gpio);
- ret = gpio_request_one(pdata->irq_gpio, GPIOF_IN, smb->client->name);
+ ret = gpio_request_one(pdata->irq_gpio, GPIOF_IN, client->name);
if (ret < 0)
goto fail;
ret = request_threaded_irq(irq, NULL, smb347_interrupt,
- IRQF_TRIGGER_FALLING, smb->client->name,
- smb);
+ IRQF_TRIGGER_FALLING, client->name, smb);
if (ret < 0)
goto fail_gpio;
* Configure the STAT output to be suitable for interrupts: disable
* all other output (except interrupts) and make it active low.
*/
- ret = smb347_read(smb, CFG_STAT);
- if (ret < 0)
- goto fail_readonly;
-
- ret &= ~CFG_STAT_ACTIVE_HIGH;
- ret |= CFG_STAT_DISABLED;
-
- ret = smb347_write(smb, CFG_STAT, ret);
- if (ret < 0)
- goto fail_readonly;
-
- ret = smb347_irq_enable(smb);
+ ret = regmap_update_bits(smb->regmap, CFG_STAT,
+ CFG_STAT_ACTIVE_HIGH | CFG_STAT_DISABLED,
+ CFG_STAT_DISABLED);
if (ret < 0)
goto fail_readonly;
smb347_set_writable(smb, false);
- smb->client->irq = irq;
+ client->irq = irq;
return 0;
fail_readonly:
fail_gpio:
gpio_free(pdata->irq_gpio);
fail:
- smb->client->irq = 0;
+ client->irq = 0;
return ret;
}
const struct smb347_charger_platform_data *pdata = smb->pdata;
int ret;
- ret = smb347_update_status(smb);
+ ret = smb347_update_ps_status(smb);
if (ret < 0)
return ret;
switch (prop) {
case POWER_SUPPLY_PROP_STATUS:
- if (!smb347_is_online(smb)) {
+ if (!smb347_is_ps_online(smb)) {
val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
break;
}
break;
case POWER_SUPPLY_PROP_CHARGE_TYPE:
- if (!smb347_is_online(smb))
+ if (!smb347_is_ps_online(smb))
return -ENODATA;
/*
val->intval = pdata->battery_info.voltage_max_design;
break;
- case POWER_SUPPLY_PROP_VOLTAGE_NOW:
- if (!smb347_is_online(smb))
- return -ENODATA;
- ret = smb347_read(smb, STAT_A);
- if (ret < 0)
- return ret;
-
- ret &= STAT_A_FLOAT_VOLTAGE_MASK;
- if (ret > 0x3d)
- ret = 0x3d;
-
- val->intval = 3500000 + ret * 20000;
- break;
-
- case POWER_SUPPLY_PROP_CURRENT_NOW:
- if (!smb347_is_online(smb))
- return -ENODATA;
-
- ret = smb347_read(smb, STAT_B);
- if (ret < 0)
- return ret;
-
- /*
- * The current value is composition of FCC and PCC values
- * and we can detect which table to use from bit 5.
- */
- if (ret & 0x20) {
- val->intval = hw_to_current(fcc_tbl,
- ARRAY_SIZE(fcc_tbl),
- ret & 7);
- } else {
- ret >>= 3;
- val->intval = hw_to_current(pcc_tbl,
- ARRAY_SIZE(pcc_tbl),
- ret & 7);
- }
- break;
-
case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
val->intval = pdata->battery_info.charge_full_design;
break;
POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
- POWER_SUPPLY_PROP_VOLTAGE_NOW,
- POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
POWER_SUPPLY_PROP_MODEL_NAME,
};
-static int smb347_debugfs_show(struct seq_file *s, void *data)
+static bool smb347_volatile_reg(struct device *dev, unsigned int reg)
{
- struct smb347_charger *smb = s->private;
- int ret;
- u8 reg;
-
- seq_printf(s, "Control registers:\n");
- seq_printf(s, "==================\n");
- for (reg = CFG_CHARGE_CURRENT; reg <= CFG_ADDRESS; reg++) {
- ret = smb347_read(smb, reg);
- seq_printf(s, "0x%02x:\t0x%02x\n", reg, ret);
- }
- seq_printf(s, "\n");
-
- seq_printf(s, "Command registers:\n");
- seq_printf(s, "==================\n");
- ret = smb347_read(smb, CMD_A);
- seq_printf(s, "0x%02x:\t0x%02x\n", CMD_A, ret);
- ret = smb347_read(smb, CMD_B);
- seq_printf(s, "0x%02x:\t0x%02x\n", CMD_B, ret);
- ret = smb347_read(smb, CMD_C);
- seq_printf(s, "0x%02x:\t0x%02x\n", CMD_C, ret);
- seq_printf(s, "\n");
-
- seq_printf(s, "Interrupt status registers:\n");
- seq_printf(s, "===========================\n");
- for (reg = IRQSTAT_A; reg <= IRQSTAT_F; reg++) {
- ret = smb347_read(smb, reg);
- seq_printf(s, "0x%02x:\t0x%02x\n", reg, ret);
- }
- seq_printf(s, "\n");
-
- seq_printf(s, "Status registers:\n");
- seq_printf(s, "=================\n");
- for (reg = STAT_A; reg <= STAT_E; reg++) {
- ret = smb347_read(smb, reg);
- seq_printf(s, "0x%02x:\t0x%02x\n", reg, ret);
+ switch (reg) {
+ case IRQSTAT_A:
+ case IRQSTAT_C:
+ case IRQSTAT_E:
+ case IRQSTAT_F:
+ case STAT_A:
+ case STAT_B:
+ case STAT_C:
+ case STAT_E:
+ return true;
}
- return 0;
+ return false;
}
-static int smb347_debugfs_open(struct inode *inode, struct file *file)
+static bool smb347_readable_reg(struct device *dev, unsigned int reg)
{
- return single_open(file, smb347_debugfs_show, inode->i_private);
+ switch (reg) {
+ case CFG_CHARGE_CURRENT:
+ case CFG_CURRENT_LIMIT:
+ case CFG_FLOAT_VOLTAGE:
+ case CFG_STAT:
+ case CFG_PIN:
+ case CFG_THERM:
+ case CFG_SYSOK:
+ case CFG_OTHER:
+ case CFG_OTG:
+ case CFG_TEMP_LIMIT:
+ case CFG_FAULT_IRQ:
+ case CFG_STATUS_IRQ:
+ case CFG_ADDRESS:
+ case CMD_A:
+ case CMD_B:
+ case CMD_C:
+ return true;
+ }
+
+ return smb347_volatile_reg(dev, reg);
}
-static const struct file_operations smb347_debugfs_fops = {
- .open = smb347_debugfs_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
+static const struct regmap_config smb347_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = SMB347_MAX_REGISTER,
+ .volatile_reg = smb347_volatile_reg,
+ .readable_reg = smb347_readable_reg,
};
static int smb347_probe(struct i2c_client *client,
i2c_set_clientdata(client, smb);
mutex_init(&smb->lock);
- smb->client = client;
+ smb->dev = &client->dev;
smb->pdata = pdata;
+ smb->regmap = devm_regmap_init_i2c(client, &smb347_regmap);
+ if (IS_ERR(smb->regmap))
+ return PTR_ERR(smb->regmap);
+
ret = smb347_hw_init(smb);
if (ret < 0)
return ret;
- smb->mains.name = "smb347-mains";
- smb->mains.type = POWER_SUPPLY_TYPE_MAINS;
- smb->mains.get_property = smb347_mains_get_property;
- smb->mains.properties = smb347_mains_properties;
- smb->mains.num_properties = ARRAY_SIZE(smb347_mains_properties);
- smb->mains.supplied_to = battery;
- smb->mains.num_supplicants = ARRAY_SIZE(battery);
-
- smb->usb.name = "smb347-usb";
- smb->usb.type = POWER_SUPPLY_TYPE_USB;
- smb->usb.get_property = smb347_usb_get_property;
- smb->usb.properties = smb347_usb_properties;
- smb->usb.num_properties = ARRAY_SIZE(smb347_usb_properties);
- smb->usb.supplied_to = battery;
- smb->usb.num_supplicants = ARRAY_SIZE(battery);
+ if (smb->pdata->use_mains) {
+ smb->mains.name = "smb347-mains";
+ smb->mains.type = POWER_SUPPLY_TYPE_MAINS;
+ smb->mains.get_property = smb347_mains_get_property;
+ smb->mains.properties = smb347_mains_properties;
+ smb->mains.num_properties = ARRAY_SIZE(smb347_mains_properties);
+ smb->mains.supplied_to = battery;
+ smb->mains.num_supplicants = ARRAY_SIZE(battery);
+ ret = power_supply_register(dev, &smb->mains);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (smb->pdata->use_usb) {
+ smb->usb.name = "smb347-usb";
+ smb->usb.type = POWER_SUPPLY_TYPE_USB;
+ smb->usb.get_property = smb347_usb_get_property;
+ smb->usb.properties = smb347_usb_properties;
+ smb->usb.num_properties = ARRAY_SIZE(smb347_usb_properties);
+ smb->usb.supplied_to = battery;
+ smb->usb.num_supplicants = ARRAY_SIZE(battery);
+ ret = power_supply_register(dev, &smb->usb);
+ if (ret < 0) {
+ if (smb->pdata->use_mains)
+ power_supply_unregister(&smb->mains);
+ return ret;
+ }
+ }
smb->battery.name = "smb347-battery";
smb->battery.type = POWER_SUPPLY_TYPE_BATTERY;
smb->battery.properties = smb347_battery_properties;
smb->battery.num_properties = ARRAY_SIZE(smb347_battery_properties);
- ret = power_supply_register(dev, &smb->mains);
- if (ret < 0)
- return ret;
-
- ret = power_supply_register(dev, &smb->usb);
- if (ret < 0) {
- power_supply_unregister(&smb->mains);
- return ret;
- }
ret = power_supply_register(dev, &smb->battery);
if (ret < 0) {
- power_supply_unregister(&smb->usb);
- power_supply_unregister(&smb->mains);
+ if (smb->pdata->use_usb)
+ power_supply_unregister(&smb->usb);
+ if (smb->pdata->use_mains)
+ power_supply_unregister(&smb->mains);
return ret;
}
* interrupt support here.
*/
if (pdata->irq_gpio >= 0) {
- ret = smb347_irq_init(smb);
+ ret = smb347_irq_init(smb, client);
if (ret < 0) {
dev_warn(dev, "failed to initialize IRQ: %d\n", ret);
dev_warn(dev, "disabling IRQ support\n");
+ } else {
+ smb347_irq_enable(smb);
}
}
- smb->dentry = debugfs_create_file("smb347-regs", S_IRUSR, NULL, smb,
- &smb347_debugfs_fops);
return 0;
}
{
struct smb347_charger *smb = i2c_get_clientdata(client);
- if (!IS_ERR_OR_NULL(smb->dentry))
- debugfs_remove(smb->dentry);
-
if (client->irq) {
smb347_irq_disable(smb);
free_irq(client->irq, smb);
}
power_supply_unregister(&smb->battery);
- power_supply_unregister(&smb->usb);
- power_supply_unregister(&smb->mains);
+ if (smb->pdata->use_usb)
+ power_supply_unregister(&smb->usb);
+ if (smb->pdata->use_mains)
+ power_supply_unregister(&smb->mains);
return 0;
}
.id_table = smb347_id,
};
-static int __init smb347_init(void)
-{
- return i2c_add_driver(&smb347_driver);
-}
-module_init(smb347_init);
-
-static void __exit smb347_exit(void)
-{
- i2c_del_driver(&smb347_driver);
-}
-module_exit(smb347_exit);
+module_i2c_driver(smb347_driver);
MODULE_AUTHOR("Bruce E. Robertson <bruce.e.robertson@intel.com>");
MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com>");
goto err_usb;
}
- irq = platform_get_irq_byname(pdev, "SYSLO");
+ irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "SYSLO"));
ret = request_threaded_irq(irq, NULL, wm831x_syslo_irq,
IRQF_TRIGGER_RISING, "System power low",
power);
goto err_battery;
}
- irq = platform_get_irq_byname(pdev, "PWR SRC");
+ irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "PWR SRC"));
ret = request_threaded_irq(irq, NULL, wm831x_pwr_src_irq,
IRQF_TRIGGER_RISING, "Power source",
power);
}
for (i = 0; i < ARRAY_SIZE(wm831x_bat_irqs); i++) {
- irq = platform_get_irq_byname(pdev, wm831x_bat_irqs[i]);
+ irq = wm831x_irq(wm831x,
+ platform_get_irq_byname(pdev,
+ wm831x_bat_irqs[i]));
ret = request_threaded_irq(irq, NULL, wm831x_bat_irq,
IRQF_TRIGGER_RISING,
wm831x_bat_irqs[i],
irq = platform_get_irq_byname(pdev, wm831x_bat_irqs[i]);
free_irq(irq, power);
}
- irq = platform_get_irq_byname(pdev, "PWR SRC");
+ irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "PWR SRC"));
free_irq(irq, power);
err_syslo:
- irq = platform_get_irq_byname(pdev, "SYSLO");
+ irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "SYSLO"));
free_irq(irq, power);
err_battery:
if (power->have_battery)
static __devexit int wm831x_power_remove(struct platform_device *pdev)
{
struct wm831x_power *wm831x_power = platform_get_drvdata(pdev);
+ struct wm831x *wm831x = wm831x_power->wm831x;
int irq, i;
for (i = 0; i < ARRAY_SIZE(wm831x_bat_irqs); i++) {
- irq = platform_get_irq_byname(pdev, wm831x_bat_irqs[i]);
+ irq = wm831x_irq(wm831x,
+ platform_get_irq_byname(pdev,
+ wm831x_bat_irqs[i]));
free_irq(irq, wm831x_power);
}
- irq = platform_get_irq_byname(pdev, "PWR SRC");
+ irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "PWR SRC"));
free_irq(irq, wm831x_power);
- irq = platform_get_irq_byname(pdev, "SYSLO");
+ irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "SYSLO"));
free_irq(irq, wm831x_power);
if (wm831x_power->have_battery)
ports for Input/Output direction to allow other traffic
than Maintenance transfers.
+config RAPIDIO_DMA_ENGINE
+ bool "DMA Engine support for RapidIO"
+ depends on RAPIDIO
+ select DMADEVICES
+ select DMA_ENGINE
+ help
+ Say Y here if you want to use DMA Engine frameork for RapidIO data
+ transfers to/from target RIO devices. RapidIO uses NREAD and
+ NWRITE (NWRITE_R, SWRITE) requests to transfer data between local
+ memory and memory on remote target device. You need a DMA controller
+ capable to perform data transfers to/from RapidIO.
+
+ If you are unsure about this, say Y here.
+
config RAPIDIO_DEBUG
bool "RapidIO subsystem debug messages"
depends on RAPIDIO
#
obj-$(CONFIG_RAPIDIO_TSI721) += tsi721.o
+ifeq ($(CONFIG_RAPIDIO_DMA_ENGINE),y)
+obj-$(CONFIG_RAPIDIO_TSI721) += tsi721_dma.o
+endif
u16 destid, u8 hopcount, u32 offset, int len,
u32 *data, int do_wr)
{
+ void __iomem *regs = priv->regs + TSI721_DMAC_BASE(priv->mdma.ch_id);
struct tsi721_dma_desc *bd_ptr;
u32 rd_count, swr_ptr, ch_stat;
int i, err = 0;
if (offset > (RIO_MAINT_SPACE_SZ - len) || (len != sizeof(u32)))
return -EINVAL;
- bd_ptr = priv->bdma[TSI721_DMACH_MAINT].bd_base;
+ bd_ptr = priv->mdma.bd_base;
- rd_count = ioread32(
- priv->regs + TSI721_DMAC_DRDCNT(TSI721_DMACH_MAINT));
+ rd_count = ioread32(regs + TSI721_DMAC_DRDCNT);
/* Initialize DMA descriptor */
bd_ptr[0].type_id = cpu_to_le32((DTYPE2 << 29) | (op << 19) | destid);
mb();
/* Start DMA operation */
- iowrite32(rd_count + 2,
- priv->regs + TSI721_DMAC_DWRCNT(TSI721_DMACH_MAINT));
- ioread32(priv->regs + TSI721_DMAC_DWRCNT(TSI721_DMACH_MAINT));
+ iowrite32(rd_count + 2, regs + TSI721_DMAC_DWRCNT);
+ ioread32(regs + TSI721_DMAC_DWRCNT);
i = 0;
/* Wait until DMA transfer is finished */
- while ((ch_stat = ioread32(priv->regs +
- TSI721_DMAC_STS(TSI721_DMACH_MAINT))) & TSI721_DMAC_STS_RUN) {
+ while ((ch_stat = ioread32(regs + TSI721_DMAC_STS))
+ & TSI721_DMAC_STS_RUN) {
udelay(1);
if (++i >= 5000000) {
dev_dbg(&priv->pdev->dev,
"%s : DMA[%d] read timeout ch_status=%x\n",
- __func__, TSI721_DMACH_MAINT, ch_stat);
+ __func__, priv->mdma.ch_id, ch_stat);
if (!do_wr)
*data = 0xffffffff;
err = -EIO;
__func__, ch_stat);
dev_dbg(&priv->pdev->dev, "OP=%d : destid=%x hc=%x off=%x\n",
do_wr ? MAINT_WR : MAINT_RD, destid, hopcount, offset);
- iowrite32(TSI721_DMAC_INT_ALL,
- priv->regs + TSI721_DMAC_INT(TSI721_DMACH_MAINT));
- iowrite32(TSI721_DMAC_CTL_INIT,
- priv->regs + TSI721_DMAC_CTL(TSI721_DMACH_MAINT));
+ iowrite32(TSI721_DMAC_INT_ALL, regs + TSI721_DMAC_INT);
+ iowrite32(TSI721_DMAC_CTL_INIT, regs + TSI721_DMAC_CTL);
udelay(10);
- iowrite32(0, priv->regs +
- TSI721_DMAC_DWRCNT(TSI721_DMACH_MAINT));
+ iowrite32(0, regs + TSI721_DMAC_DWRCNT);
udelay(1);
if (!do_wr)
*data = 0xffffffff;
* NOTE: Skipping check and clear FIFO entries because we are waiting
* for transfer to be completed.
*/
- swr_ptr = ioread32(priv->regs + TSI721_DMAC_DSWP(TSI721_DMACH_MAINT));
- iowrite32(swr_ptr, priv->regs + TSI721_DMAC_DSRP(TSI721_DMACH_MAINT));
+ swr_ptr = ioread32(regs + TSI721_DMAC_DSWP);
+ iowrite32(swr_ptr, regs + TSI721_DMAC_DSRP);
err_out:
return err;
tsi721_pw_handler(mport);
}
+#ifdef CONFIG_RAPIDIO_DMA_ENGINE
+ if (dev_int & TSI721_DEV_INT_BDMA_CH) {
+ int ch;
+
+ if (dev_ch_int & TSI721_INT_BDMA_CHAN_M) {
+ dev_dbg(&priv->pdev->dev,
+ "IRQ from DMA channel 0x%08x\n", dev_ch_int);
+
+ for (ch = 0; ch < TSI721_DMA_MAXCH; ch++) {
+ if (!(dev_ch_int & TSI721_INT_BDMA_CHAN(ch)))
+ continue;
+ tsi721_bdma_handler(&priv->bdma[ch]);
+ }
+ }
+ }
+#endif
return IRQ_HANDLED;
}
priv->regs + TSI721_SR_CHINT(IDB_QUEUE));
iowrite32(TSI721_SR_CHINT_IDBQRCV,
priv->regs + TSI721_SR_CHINTE(IDB_QUEUE));
- iowrite32(TSI721_INT_SR2PC_CHAN(IDB_QUEUE),
- priv->regs + TSI721_DEV_CHAN_INTE);
/* Enable SRIO MAC interrupts */
iowrite32(TSI721_RIO_EM_DEV_INT_EN_INT,
priv->regs + TSI721_RIO_EM_DEV_INT_EN);
+ /* Enable interrupts from channels in use */
+#ifdef CONFIG_RAPIDIO_DMA_ENGINE
+ intr = TSI721_INT_SR2PC_CHAN(IDB_QUEUE) |
+ (TSI721_INT_BDMA_CHAN_M &
+ ~TSI721_INT_BDMA_CHAN(TSI721_DMACH_MAINT));
+#else
+ intr = TSI721_INT_SR2PC_CHAN(IDB_QUEUE);
+#endif
+ iowrite32(intr, priv->regs + TSI721_DEV_CHAN_INTE);
+
if (priv->flags & TSI721_USING_MSIX)
intr = TSI721_DEV_INT_SRIO;
else
intr = TSI721_DEV_INT_SR2PC_CH | TSI721_DEV_INT_SRIO |
- TSI721_DEV_INT_SMSG_CH;
+ TSI721_DEV_INT_SMSG_CH | TSI721_DEV_INT_BDMA_CH;
iowrite32(intr, priv->regs + TSI721_DEV_INTE);
ioread32(priv->regs + TSI721_DEV_INTE);
TSI721_MSIX_OMSG_INT(i);
}
+#ifdef CONFIG_RAPIDIO_DMA_ENGINE
+ /*
+ * Initialize MSI-X entries for Block DMA Engine:
+ * this driver supports XXX DMA channels
+ * (one is reserved for SRIO maintenance transactions)
+ */
+ for (i = 0; i < TSI721_DMA_CHNUM; i++) {
+ entries[TSI721_VECT_DMA0_DONE + i].entry =
+ TSI721_MSIX_DMACH_DONE(i);
+ entries[TSI721_VECT_DMA0_INT + i].entry =
+ TSI721_MSIX_DMACH_INT(i);
+ }
+#endif /* CONFIG_RAPIDIO_DMA_ENGINE */
+
err = pci_enable_msix(priv->pdev, entries, ARRAY_SIZE(entries));
if (err) {
if (err > 0)
dev_info(&priv->pdev->dev,
"Only %d MSI-X vectors available, "
"not using MSI-X\n", err);
+ else
+ dev_err(&priv->pdev->dev,
+ "Failed to enable MSI-X (err=%d)\n", err);
return err;
}
i, pci_name(priv->pdev));
}
+#ifdef CONFIG_RAPIDIO_DMA_ENGINE
+ for (i = 0; i < TSI721_DMA_CHNUM; i++) {
+ priv->msix[TSI721_VECT_DMA0_DONE + i].vector =
+ entries[TSI721_VECT_DMA0_DONE + i].vector;
+ snprintf(priv->msix[TSI721_VECT_DMA0_DONE + i].irq_name,
+ IRQ_DEVICE_NAME_MAX, DRV_NAME "-dmad%d@pci:%s",
+ i, pci_name(priv->pdev));
+
+ priv->msix[TSI721_VECT_DMA0_INT + i].vector =
+ entries[TSI721_VECT_DMA0_INT + i].vector;
+ snprintf(priv->msix[TSI721_VECT_DMA0_INT + i].irq_name,
+ IRQ_DEVICE_NAME_MAX, DRV_NAME "-dmai%d@pci:%s",
+ i, pci_name(priv->pdev));
+ }
+#endif /* CONFIG_RAPIDIO_DMA_ENGINE */
+
return 0;
}
#endif /* CONFIG_PCI_MSI */
priv->idb_base = NULL;
}
-static int tsi721_bdma_ch_init(struct tsi721_device *priv, int chnum)
+/**
+ * tsi721_bdma_maint_init - Initialize maintenance request BDMA channel.
+ * @priv: pointer to tsi721 private data
+ *
+ * Initialize BDMA channel allocated for RapidIO maintenance read/write
+ * request generation
+ * Returns %0 on success or %-ENOMEM on failure.
+ */
+static int tsi721_bdma_maint_init(struct tsi721_device *priv)
{
struct tsi721_dma_desc *bd_ptr;
u64 *sts_ptr;
dma_addr_t bd_phys, sts_phys;
int sts_size;
- int bd_num = priv->bdma[chnum].bd_num;
+ int bd_num = 2;
+ void __iomem *regs;
- dev_dbg(&priv->pdev->dev, "Init Block DMA Engine, CH%d\n", chnum);
+ dev_dbg(&priv->pdev->dev,
+ "Init Block DMA Engine for Maintenance requests, CH%d\n",
+ TSI721_DMACH_MAINT);
/*
* Initialize DMA channel for maintenance requests
*/
+ priv->mdma.ch_id = TSI721_DMACH_MAINT;
+ regs = priv->regs + TSI721_DMAC_BASE(TSI721_DMACH_MAINT);
+
/* Allocate space for DMA descriptors */
bd_ptr = dma_zalloc_coherent(&priv->pdev->dev,
bd_num * sizeof(struct tsi721_dma_desc),
if (!bd_ptr)
return -ENOMEM;
- priv->bdma[chnum].bd_phys = bd_phys;
- priv->bdma[chnum].bd_base = bd_ptr;
+ priv->mdma.bd_num = bd_num;
+ priv->mdma.bd_phys = bd_phys;
+ priv->mdma.bd_base = bd_ptr;
dev_dbg(&priv->pdev->dev, "DMA descriptors @ %p (phys = %llx)\n",
bd_ptr, (unsigned long long)bd_phys);
dma_free_coherent(&priv->pdev->dev,
bd_num * sizeof(struct tsi721_dma_desc),
bd_ptr, bd_phys);
- priv->bdma[chnum].bd_base = NULL;
+ priv->mdma.bd_base = NULL;
return -ENOMEM;
}
- priv->bdma[chnum].sts_phys = sts_phys;
- priv->bdma[chnum].sts_base = sts_ptr;
- priv->bdma[chnum].sts_size = sts_size;
+ priv->mdma.sts_phys = sts_phys;
+ priv->mdma.sts_base = sts_ptr;
+ priv->mdma.sts_size = sts_size;
dev_dbg(&priv->pdev->dev,
"desc status FIFO @ %p (phys = %llx) size=0x%x\n",
bd_ptr[bd_num - 1].next_hi = cpu_to_le32((u64)bd_phys >> 32);
/* Setup DMA descriptor pointers */
- iowrite32(((u64)bd_phys >> 32),
- priv->regs + TSI721_DMAC_DPTRH(chnum));
+ iowrite32(((u64)bd_phys >> 32), regs + TSI721_DMAC_DPTRH);
iowrite32(((u64)bd_phys & TSI721_DMAC_DPTRL_MASK),
- priv->regs + TSI721_DMAC_DPTRL(chnum));
+ regs + TSI721_DMAC_DPTRL);
/* Setup descriptor status FIFO */
- iowrite32(((u64)sts_phys >> 32),
- priv->regs + TSI721_DMAC_DSBH(chnum));
+ iowrite32(((u64)sts_phys >> 32), regs + TSI721_DMAC_DSBH);
iowrite32(((u64)sts_phys & TSI721_DMAC_DSBL_MASK),
- priv->regs + TSI721_DMAC_DSBL(chnum));
+ regs + TSI721_DMAC_DSBL);
iowrite32(TSI721_DMAC_DSSZ_SIZE(sts_size),
- priv->regs + TSI721_DMAC_DSSZ(chnum));
+ regs + TSI721_DMAC_DSSZ);
/* Clear interrupt bits */
- iowrite32(TSI721_DMAC_INT_ALL,
- priv->regs + TSI721_DMAC_INT(chnum));
+ iowrite32(TSI721_DMAC_INT_ALL, regs + TSI721_DMAC_INT);
- ioread32(priv->regs + TSI721_DMAC_INT(chnum));
+ ioread32(regs + TSI721_DMAC_INT);
/* Toggle DMA channel initialization */
- iowrite32(TSI721_DMAC_CTL_INIT, priv->regs + TSI721_DMAC_CTL(chnum));
- ioread32(priv->regs + TSI721_DMAC_CTL(chnum));
+ iowrite32(TSI721_DMAC_CTL_INIT, regs + TSI721_DMAC_CTL);
+ ioread32(regs + TSI721_DMAC_CTL);
udelay(10);
return 0;
}
-static int tsi721_bdma_ch_free(struct tsi721_device *priv, int chnum)
+static int tsi721_bdma_maint_free(struct tsi721_device *priv)
{
u32 ch_stat;
+ struct tsi721_bdma_maint *mdma = &priv->mdma;
+ void __iomem *regs = priv->regs + TSI721_DMAC_BASE(mdma->ch_id);
- if (priv->bdma[chnum].bd_base == NULL)
+ if (mdma->bd_base == NULL)
return 0;
/* Check if DMA channel still running */
- ch_stat = ioread32(priv->regs + TSI721_DMAC_STS(chnum));
+ ch_stat = ioread32(regs + TSI721_DMAC_STS);
if (ch_stat & TSI721_DMAC_STS_RUN)
return -EFAULT;
/* Put DMA channel into init state */
- iowrite32(TSI721_DMAC_CTL_INIT,
- priv->regs + TSI721_DMAC_CTL(chnum));
+ iowrite32(TSI721_DMAC_CTL_INIT, regs + TSI721_DMAC_CTL);
/* Free space allocated for DMA descriptors */
dma_free_coherent(&priv->pdev->dev,
- priv->bdma[chnum].bd_num * sizeof(struct tsi721_dma_desc),
- priv->bdma[chnum].bd_base, priv->bdma[chnum].bd_phys);
- priv->bdma[chnum].bd_base = NULL;
+ mdma->bd_num * sizeof(struct tsi721_dma_desc),
+ mdma->bd_base, mdma->bd_phys);
+ mdma->bd_base = NULL;
/* Free space allocated for status FIFO */
dma_free_coherent(&priv->pdev->dev,
- priv->bdma[chnum].sts_size * sizeof(struct tsi721_dma_sts),
- priv->bdma[chnum].sts_base, priv->bdma[chnum].sts_phys);
- priv->bdma[chnum].sts_base = NULL;
- return 0;
-}
-
-static int tsi721_bdma_init(struct tsi721_device *priv)
-{
- /* Initialize BDMA channel allocated for RapidIO maintenance read/write
- * request generation
- */
- priv->bdma[TSI721_DMACH_MAINT].bd_num = 2;
- if (tsi721_bdma_ch_init(priv, TSI721_DMACH_MAINT)) {
- dev_err(&priv->pdev->dev, "Unable to initialize maintenance DMA"
- " channel %d, aborting\n", TSI721_DMACH_MAINT);
- return -ENOMEM;
- }
-
+ mdma->sts_size * sizeof(struct tsi721_dma_sts),
+ mdma->sts_base, mdma->sts_phys);
+ mdma->sts_base = NULL;
return 0;
}
-static void tsi721_bdma_free(struct tsi721_device *priv)
-{
- tsi721_bdma_ch_free(priv, TSI721_DMACH_MAINT);
-}
-
/* Enable Inbound Messaging Interrupts */
static void
tsi721_imsg_interrupt_enable(struct tsi721_device *priv, int ch,
/* Disable all BDMA Channel interrupts */
for (ch = 0; ch < TSI721_DMA_MAXCH; ch++)
- iowrite32(0, priv->regs + TSI721_DMAC_INTE(ch));
+ iowrite32(0,
+ priv->regs + TSI721_DMAC_BASE(ch) + TSI721_DMAC_INTE);
/* Disable all general BDMA interrupts */
iowrite32(0, priv->regs + TSI721_BDMA_INTE);
mport->phy_type = RIO_PHY_SERIAL;
mport->priv = (void *)priv;
mport->phys_efptr = 0x100;
+ priv->mport = mport;
INIT_LIST_HEAD(&mport->dbells);
if (!err) {
tsi721_interrupts_init(priv);
ops->pwenable = tsi721_pw_enable;
- } else
+ } else {
dev_err(&pdev->dev, "Unable to get assigned PCI IRQ "
"vector %02X err=0x%x\n", pdev->irq, err);
+ goto err_exit;
+ }
+#ifdef CONFIG_RAPIDIO_DMA_ENGINE
+ tsi721_register_dma(priv);
+#endif
/* Enable SRIO link */
iowrite32(ioread32(priv->regs + TSI721_DEVCTL) |
TSI721_DEVCTL_SRBOOT_CMPL,
priv->regs + TSI721_DEVCTL);
rio_register_mport(mport);
- priv->mport = mport;
if (mport->host_deviceid >= 0)
iowrite32(RIO_PORT_GEN_HOST | RIO_PORT_GEN_MASTER |
iowrite32(0, priv->regs + (0x100 + RIO_PORT_GEN_CTL_CSR));
return 0;
+
+err_exit:
+ kfree(mport);
+ kfree(ops);
+ return err;
}
static int __devinit tsi721_probe(struct pci_dev *pdev,
tsi721_init_pc2sr_mapping(priv);
tsi721_init_sr2pc_mapping(priv);
- if (tsi721_bdma_init(priv)) {
+ if (tsi721_bdma_maint_init(priv)) {
dev_err(&pdev->dev, "BDMA initialization failed, aborting\n");
err = -ENOMEM;
goto err_unmap_bars;
err_free_consistent:
tsi721_doorbell_free(priv);
err_free_bdma:
- tsi721_bdma_free(priv);
+ tsi721_bdma_maint_free(priv);
err_unmap_bars:
if (priv->regs)
iounmap(priv->regs);
#define TSI721_DEV_INTE 0x29840
#define TSI721_DEV_INT 0x29844
#define TSI721_DEV_INTSET 0x29848
+#define TSI721_DEV_INT_BDMA_CH 0x00002000
+#define TSI721_DEV_INT_BDMA_NCH 0x00001000
#define TSI721_DEV_INT_SMSG_CH 0x00000800
#define TSI721_DEV_INT_SMSG_NCH 0x00000400
#define TSI721_DEV_INT_SR2PC_CH 0x00000200
#define TSI721_INT_IMSG_CHAN(x) (1 << (16 + (x)))
#define TSI721_INT_OMSG_CHAN_M 0x0000ff00
#define TSI721_INT_OMSG_CHAN(x) (1 << (8 + (x)))
+#define TSI721_INT_BDMA_CHAN_M 0x000000ff
+#define TSI721_INT_BDMA_CHAN(x) (1 << (x))
/*
* PC2SR block registers
* x = 0..7
*/
-#define TSI721_DMAC_DWRCNT(x) (0x51000 + (x) * 0x1000)
-#define TSI721_DMAC_DRDCNT(x) (0x51004 + (x) * 0x1000)
+#define TSI721_DMAC_BASE(x) (0x51000 + (x) * 0x1000)
-#define TSI721_DMAC_CTL(x) (0x51008 + (x) * 0x1000)
+#define TSI721_DMAC_DWRCNT 0x000
+#define TSI721_DMAC_DRDCNT 0x004
+
+#define TSI721_DMAC_CTL 0x008
#define TSI721_DMAC_CTL_SUSP 0x00000002
#define TSI721_DMAC_CTL_INIT 0x00000001
-#define TSI721_DMAC_INT(x) (0x5100c + (x) * 0x1000)
+#define TSI721_DMAC_INT 0x00c
#define TSI721_DMAC_INT_STFULL 0x00000010
#define TSI721_DMAC_INT_DONE 0x00000008
#define TSI721_DMAC_INT_SUSP 0x00000004
#define TSI721_DMAC_INT_IOFDONE 0x00000001
#define TSI721_DMAC_INT_ALL 0x0000001f
-#define TSI721_DMAC_INTSET(x) (0x51010 + (x) * 0x1000)
+#define TSI721_DMAC_INTSET 0x010
-#define TSI721_DMAC_STS(x) (0x51014 + (x) * 0x1000)
+#define TSI721_DMAC_STS 0x014
#define TSI721_DMAC_STS_ABORT 0x00400000
#define TSI721_DMAC_STS_RUN 0x00200000
#define TSI721_DMAC_STS_CS 0x001f0000
-#define TSI721_DMAC_INTE(x) (0x51018 + (x) * 0x1000)
+#define TSI721_DMAC_INTE 0x018
-#define TSI721_DMAC_DPTRL(x) (0x51024 + (x) * 0x1000)
+#define TSI721_DMAC_DPTRL 0x024
#define TSI721_DMAC_DPTRL_MASK 0xffffffe0
-#define TSI721_DMAC_DPTRH(x) (0x51028 + (x) * 0x1000)
+#define TSI721_DMAC_DPTRH 0x028
-#define TSI721_DMAC_DSBL(x) (0x5102c + (x) * 0x1000)
+#define TSI721_DMAC_DSBL 0x02c
#define TSI721_DMAC_DSBL_MASK 0xffffffc0
-#define TSI721_DMAC_DSBH(x) (0x51030 + (x) * 0x1000)
+#define TSI721_DMAC_DSBH 0x030
-#define TSI721_DMAC_DSSZ(x) (0x51034 + (x) * 0x1000)
+#define TSI721_DMAC_DSSZ 0x034
#define TSI721_DMAC_DSSZ_SIZE_M 0x0000000f
#define TSI721_DMAC_DSSZ_SIZE(size) (__fls(size) - 4)
-
-#define TSI721_DMAC_DSRP(x) (0x51038 + (x) * 0x1000)
+#define TSI721_DMAC_DSRP 0x038
#define TSI721_DMAC_DSRP_MASK 0x0007ffff
-#define TSI721_DMAC_DSWP(x) (0x5103c + (x) * 0x1000)
+#define TSI721_DMAC_DSWP 0x03c
#define TSI721_DMAC_DSWP_MASK 0x0007ffff
#define TSI721_BDMA_INTE 0x5f000
#define TSI721_DMACH_MAINT 0 /* DMA channel for maint requests */
#define TSI721_DMACH_MAINT_NBD 32 /* Number of BDs for maint requests */
+#define TSI721_DMACH_DMA 1 /* DMA channel for data transfers */
+
#define MSG_DMA_ENTRY_INX_TO_SIZE(x) ((0x10 << (x)) & 0xFFFF0)
enum tsi721_smsg_int_flag {
/* Structures */
+#ifdef CONFIG_RAPIDIO_DMA_ENGINE
+
+struct tsi721_tx_desc {
+ struct dma_async_tx_descriptor txd;
+ struct tsi721_dma_desc *hw_desc;
+ u16 destid;
+ /* low 64-bits of 66-bit RIO address */
+ u64 rio_addr;
+ /* upper 2-bits of 66-bit RIO address */
+ u8 rio_addr_u;
+ bool interrupt;
+ struct list_head desc_node;
+ struct list_head tx_list;
+};
+
struct tsi721_bdma_chan {
+ int id;
+ void __iomem *regs;
+ int bd_num; /* number of buffer descriptors */
+ void *bd_base; /* start of DMA descriptors */
+ dma_addr_t bd_phys;
+ void *sts_base; /* start of DMA BD status FIFO */
+ dma_addr_t sts_phys;
+ int sts_size;
+ u32 sts_rdptr;
+ u32 wr_count;
+ u32 wr_count_next;
+
+ struct dma_chan dchan;
+ struct tsi721_tx_desc *tx_desc;
+ spinlock_t lock;
+ struct list_head active_list;
+ struct list_head queue;
+ struct list_head free_list;
+ dma_cookie_t completed_cookie;
+ struct tasklet_struct tasklet;
+};
+
+#endif /* CONFIG_RAPIDIO_DMA_ENGINE */
+
+struct tsi721_bdma_maint {
+ int ch_id; /* BDMA channel number */
int bd_num; /* number of buffer descriptors */
void *bd_base; /* start of DMA descriptors */
dma_addr_t bd_phys;
TSI721_VECT_IMB1_INT,
TSI721_VECT_IMB2_INT,
TSI721_VECT_IMB3_INT,
+#ifdef CONFIG_RAPIDIO_DMA_ENGINE
+ TSI721_VECT_DMA0_DONE,
+ TSI721_VECT_DMA1_DONE,
+ TSI721_VECT_DMA2_DONE,
+ TSI721_VECT_DMA3_DONE,
+ TSI721_VECT_DMA4_DONE,
+ TSI721_VECT_DMA5_DONE,
+ TSI721_VECT_DMA6_DONE,
+ TSI721_VECT_DMA7_DONE,
+ TSI721_VECT_DMA0_INT,
+ TSI721_VECT_DMA1_INT,
+ TSI721_VECT_DMA2_INT,
+ TSI721_VECT_DMA3_INT,
+ TSI721_VECT_DMA4_INT,
+ TSI721_VECT_DMA5_INT,
+ TSI721_VECT_DMA6_INT,
+ TSI721_VECT_DMA7_INT,
+#endif /* CONFIG_RAPIDIO_DMA_ENGINE */
TSI721_VECT_MAX
};
u32 pw_discard_count;
/* BDMA Engine */
+ struct tsi721_bdma_maint mdma; /* Maintenance rd/wr request channel */
+
+#ifdef CONFIG_RAPIDIO_DMA_ENGINE
struct tsi721_bdma_chan bdma[TSI721_DMA_CHNUM];
+#endif
/* Inbound Messaging */
int imsg_init[TSI721_IMSG_CHNUM];
struct tsi721_omsg_ring omsg_ring[TSI721_OMSG_CHNUM];
};
+#ifdef CONFIG_RAPIDIO_DMA_ENGINE
+extern void tsi721_bdma_handler(struct tsi721_bdma_chan *bdma_chan);
+extern int __devinit tsi721_register_dma(struct tsi721_device *priv);
+#endif
+
#endif
--- /dev/null
+/*
+ * DMA Engine support for Tsi721 PCIExpress-to-SRIO bridge
+ *
+ * Copyright 2011 Integrated Device Technology, Inc.
+ * Alexandre Bounine <alexandre.bounine@idt.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/io.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/rio.h>
+#include <linux/rio_drv.h>
+#include <linux/dma-mapping.h>
+#include <linux/interrupt.h>
+#include <linux/kfifo.h>
+#include <linux/delay.h>
+
+#include "tsi721.h"
+
+static inline struct tsi721_bdma_chan *to_tsi721_chan(struct dma_chan *chan)
+{
+ return container_of(chan, struct tsi721_bdma_chan, dchan);
+}
+
+static inline struct tsi721_device *to_tsi721(struct dma_device *ddev)
+{
+ return container_of(ddev, struct rio_mport, dma)->priv;
+}
+
+static inline
+struct tsi721_tx_desc *to_tsi721_desc(struct dma_async_tx_descriptor *txd)
+{
+ return container_of(txd, struct tsi721_tx_desc, txd);
+}
+
+static inline
+struct tsi721_tx_desc *tsi721_dma_first_active(
+ struct tsi721_bdma_chan *bdma_chan)
+{
+ return list_first_entry(&bdma_chan->active_list,
+ struct tsi721_tx_desc, desc_node);
+}
+
+static int tsi721_bdma_ch_init(struct tsi721_bdma_chan *bdma_chan)
+{
+ struct tsi721_dma_desc *bd_ptr;
+ struct device *dev = bdma_chan->dchan.device->dev;
+ u64 *sts_ptr;
+ dma_addr_t bd_phys;
+ dma_addr_t sts_phys;
+ int sts_size;
+ int bd_num = bdma_chan->bd_num;
+
+ dev_dbg(dev, "Init Block DMA Engine, CH%d\n", bdma_chan->id);
+
+ /* Allocate space for DMA descriptors */
+ bd_ptr = dma_zalloc_coherent(dev,
+ bd_num * sizeof(struct tsi721_dma_desc),
+ &bd_phys, GFP_KERNEL);
+ if (!bd_ptr)
+ return -ENOMEM;
+
+ bdma_chan->bd_phys = bd_phys;
+ bdma_chan->bd_base = bd_ptr;
+
+ dev_dbg(dev, "DMA descriptors @ %p (phys = %llx)\n",
+ bd_ptr, (unsigned long long)bd_phys);
+
+ /* Allocate space for descriptor status FIFO */
+ sts_size = (bd_num >= TSI721_DMA_MINSTSSZ) ?
+ bd_num : TSI721_DMA_MINSTSSZ;
+ sts_size = roundup_pow_of_two(sts_size);
+ sts_ptr = dma_zalloc_coherent(dev,
+ sts_size * sizeof(struct tsi721_dma_sts),
+ &sts_phys, GFP_KERNEL);
+ if (!sts_ptr) {
+ /* Free space allocated for DMA descriptors */
+ dma_free_coherent(dev,
+ bd_num * sizeof(struct tsi721_dma_desc),
+ bd_ptr, bd_phys);
+ bdma_chan->bd_base = NULL;
+ return -ENOMEM;
+ }
+
+ bdma_chan->sts_phys = sts_phys;
+ bdma_chan->sts_base = sts_ptr;
+ bdma_chan->sts_size = sts_size;
+
+ dev_dbg(dev,
+ "desc status FIFO @ %p (phys = %llx) size=0x%x\n",
+ sts_ptr, (unsigned long long)sts_phys, sts_size);
+
+ /* Initialize DMA descriptors ring */
+ bd_ptr[bd_num - 1].type_id = cpu_to_le32(DTYPE3 << 29);
+ bd_ptr[bd_num - 1].next_lo = cpu_to_le32((u64)bd_phys &
+ TSI721_DMAC_DPTRL_MASK);
+ bd_ptr[bd_num - 1].next_hi = cpu_to_le32((u64)bd_phys >> 32);
+
+ /* Setup DMA descriptor pointers */
+ iowrite32(((u64)bd_phys >> 32),
+ bdma_chan->regs + TSI721_DMAC_DPTRH);
+ iowrite32(((u64)bd_phys & TSI721_DMAC_DPTRL_MASK),
+ bdma_chan->regs + TSI721_DMAC_DPTRL);
+
+ /* Setup descriptor status FIFO */
+ iowrite32(((u64)sts_phys >> 32),
+ bdma_chan->regs + TSI721_DMAC_DSBH);
+ iowrite32(((u64)sts_phys & TSI721_DMAC_DSBL_MASK),
+ bdma_chan->regs + TSI721_DMAC_DSBL);
+ iowrite32(TSI721_DMAC_DSSZ_SIZE(sts_size),
+ bdma_chan->regs + TSI721_DMAC_DSSZ);
+
+ /* Clear interrupt bits */
+ iowrite32(TSI721_DMAC_INT_ALL,
+ bdma_chan->regs + TSI721_DMAC_INT);
+
+ ioread32(bdma_chan->regs + TSI721_DMAC_INT);
+
+ /* Toggle DMA channel initialization */
+ iowrite32(TSI721_DMAC_CTL_INIT, bdma_chan->regs + TSI721_DMAC_CTL);
+ ioread32(bdma_chan->regs + TSI721_DMAC_CTL);
+ bdma_chan->wr_count = bdma_chan->wr_count_next = 0;
+ bdma_chan->sts_rdptr = 0;
+ udelay(10);
+
+ return 0;
+}
+
+static int tsi721_bdma_ch_free(struct tsi721_bdma_chan *bdma_chan)
+{
+ u32 ch_stat;
+
+ if (bdma_chan->bd_base == NULL)
+ return 0;
+
+ /* Check if DMA channel still running */
+ ch_stat = ioread32(bdma_chan->regs + TSI721_DMAC_STS);
+ if (ch_stat & TSI721_DMAC_STS_RUN)
+ return -EFAULT;
+
+ /* Put DMA channel into init state */
+ iowrite32(TSI721_DMAC_CTL_INIT, bdma_chan->regs + TSI721_DMAC_CTL);
+
+ /* Free space allocated for DMA descriptors */
+ dma_free_coherent(bdma_chan->dchan.device->dev,
+ bdma_chan->bd_num * sizeof(struct tsi721_dma_desc),
+ bdma_chan->bd_base, bdma_chan->bd_phys);
+ bdma_chan->bd_base = NULL;
+
+ /* Free space allocated for status FIFO */
+ dma_free_coherent(bdma_chan->dchan.device->dev,
+ bdma_chan->sts_size * sizeof(struct tsi721_dma_sts),
+ bdma_chan->sts_base, bdma_chan->sts_phys);
+ bdma_chan->sts_base = NULL;
+ return 0;
+}
+
+static void
+tsi721_bdma_interrupt_enable(struct tsi721_bdma_chan *bdma_chan, int enable)
+{
+ if (enable) {
+ /* Clear pending BDMA channel interrupts */
+ iowrite32(TSI721_DMAC_INT_ALL,
+ bdma_chan->regs + TSI721_DMAC_INT);
+ ioread32(bdma_chan->regs + TSI721_DMAC_INT);
+ /* Enable BDMA channel interrupts */
+ iowrite32(TSI721_DMAC_INT_ALL,
+ bdma_chan->regs + TSI721_DMAC_INTE);
+ } else {
+ /* Disable BDMA channel interrupts */
+ iowrite32(0, bdma_chan->regs + TSI721_DMAC_INTE);
+ /* Clear pending BDMA channel interrupts */
+ iowrite32(TSI721_DMAC_INT_ALL,
+ bdma_chan->regs + TSI721_DMAC_INT);
+ }
+
+}
+
+static bool tsi721_dma_is_idle(struct tsi721_bdma_chan *bdma_chan)
+{
+ u32 sts;
+
+ sts = ioread32(bdma_chan->regs + TSI721_DMAC_STS);
+ return ((sts & TSI721_DMAC_STS_RUN) == 0);
+}
+
+void tsi721_bdma_handler(struct tsi721_bdma_chan *bdma_chan)
+{
+ /* Disable BDMA channel interrupts */
+ iowrite32(0, bdma_chan->regs + TSI721_DMAC_INTE);
+
+ tasklet_schedule(&bdma_chan->tasklet);
+}
+
+#ifdef CONFIG_PCI_MSI
+/**
+ * tsi721_omsg_msix - MSI-X interrupt handler for BDMA channels
+ * @irq: Linux interrupt number
+ * @ptr: Pointer to interrupt-specific data (BDMA channel structure)
+ *
+ * Handles BDMA channel interrupts signaled using MSI-X.
+ */
+static irqreturn_t tsi721_bdma_msix(int irq, void *ptr)
+{
+ struct tsi721_bdma_chan *bdma_chan = ptr;
+
+ tsi721_bdma_handler(bdma_chan);
+ return IRQ_HANDLED;
+}
+#endif /* CONFIG_PCI_MSI */
+
+/* Must be called with the spinlock held */
+static void tsi721_start_dma(struct tsi721_bdma_chan *bdma_chan)
+{
+ if (!tsi721_dma_is_idle(bdma_chan)) {
+ dev_err(bdma_chan->dchan.device->dev,
+ "BUG: Attempt to start non-idle channel\n");
+ return;
+ }
+
+ if (bdma_chan->wr_count == bdma_chan->wr_count_next) {
+ dev_err(bdma_chan->dchan.device->dev,
+ "BUG: Attempt to start DMA with no BDs ready\n");
+ return;
+ }
+
+ dev_dbg(bdma_chan->dchan.device->dev,
+ "tx_chan: %p, chan: %d, regs: %p\n",
+ bdma_chan, bdma_chan->dchan.chan_id, bdma_chan->regs);
+
+ iowrite32(bdma_chan->wr_count_next,
+ bdma_chan->regs + TSI721_DMAC_DWRCNT);
+ ioread32(bdma_chan->regs + TSI721_DMAC_DWRCNT);
+
+ bdma_chan->wr_count = bdma_chan->wr_count_next;
+}
+
+static void tsi721_desc_put(struct tsi721_bdma_chan *bdma_chan,
+ struct tsi721_tx_desc *desc)
+{
+ dev_dbg(bdma_chan->dchan.device->dev,
+ "Put desc: %p into free list\n", desc);
+
+ if (desc) {
+ spin_lock_bh(&bdma_chan->lock);
+ list_splice_init(&desc->tx_list, &bdma_chan->free_list);
+ list_add(&desc->desc_node, &bdma_chan->free_list);
+ bdma_chan->wr_count_next = bdma_chan->wr_count;
+ spin_unlock_bh(&bdma_chan->lock);
+ }
+}
+
+static
+struct tsi721_tx_desc *tsi721_desc_get(struct tsi721_bdma_chan *bdma_chan)
+{
+ struct tsi721_tx_desc *tx_desc, *_tx_desc;
+ struct tsi721_tx_desc *ret = NULL;
+ int i;
+
+ spin_lock_bh(&bdma_chan->lock);
+ list_for_each_entry_safe(tx_desc, _tx_desc,
+ &bdma_chan->free_list, desc_node) {
+ if (async_tx_test_ack(&tx_desc->txd)) {
+ list_del(&tx_desc->desc_node);
+ ret = tx_desc;
+ break;
+ }
+ dev_dbg(bdma_chan->dchan.device->dev,
+ "desc %p not ACKed\n", tx_desc);
+ }
+
+ i = bdma_chan->wr_count_next % bdma_chan->bd_num;
+ if (i == bdma_chan->bd_num - 1) {
+ i = 0;
+ bdma_chan->wr_count_next++; /* skip link descriptor */
+ }
+
+ bdma_chan->wr_count_next++;
+ tx_desc->txd.phys = bdma_chan->bd_phys +
+ i * sizeof(struct tsi721_dma_desc);
+ tx_desc->hw_desc = &((struct tsi721_dma_desc *)bdma_chan->bd_base)[i];
+
+ spin_unlock_bh(&bdma_chan->lock);
+
+ return ret;
+}
+
+static int
+tsi721_fill_desc(struct tsi721_bdma_chan *bdma_chan,
+ struct tsi721_tx_desc *desc, struct scatterlist *sg,
+ enum dma_rtype rtype, u32 sys_size)
+{
+ struct tsi721_dma_desc *bd_ptr = desc->hw_desc;
+ u64 rio_addr;
+
+ if (sg_dma_len(sg) > TSI721_DMAD_BCOUNT1 + 1) {
+ dev_err(bdma_chan->dchan.device->dev,
+ "SG element is too large\n");
+ return -EINVAL;
+ }
+
+ dev_dbg(bdma_chan->dchan.device->dev,
+ "desc: 0x%llx, addr: 0x%llx len: 0x%x\n",
+ (u64)desc->txd.phys, (unsigned long long)sg_dma_address(sg),
+ sg_dma_len(sg));
+
+ dev_dbg(bdma_chan->dchan.device->dev,
+ "bd_ptr = %p did=%d raddr=0x%llx\n",
+ bd_ptr, desc->destid, desc->rio_addr);
+
+ /* Initialize DMA descriptor */
+ bd_ptr->type_id = cpu_to_le32((DTYPE1 << 29) |
+ (rtype << 19) | desc->destid);
+ if (desc->interrupt)
+ bd_ptr->type_id |= cpu_to_le32(TSI721_DMAD_IOF);
+ bd_ptr->bcount = cpu_to_le32(((desc->rio_addr & 0x3) << 30) |
+ (sys_size << 26) | sg_dma_len(sg));
+ rio_addr = (desc->rio_addr >> 2) |
+ ((u64)(desc->rio_addr_u & 0x3) << 62);
+ bd_ptr->raddr_lo = cpu_to_le32(rio_addr & 0xffffffff);
+ bd_ptr->raddr_hi = cpu_to_le32(rio_addr >> 32);
+ bd_ptr->t1.bufptr_lo = cpu_to_le32(
+ (u64)sg_dma_address(sg) & 0xffffffff);
+ bd_ptr->t1.bufptr_hi = cpu_to_le32((u64)sg_dma_address(sg) >> 32);
+ bd_ptr->t1.s_dist = 0;
+ bd_ptr->t1.s_size = 0;
+
+ return 0;
+}
+
+static void tsi721_dma_chain_complete(struct tsi721_bdma_chan *bdma_chan,
+ struct tsi721_tx_desc *desc)
+{
+ struct dma_async_tx_descriptor *txd = &desc->txd;
+ dma_async_tx_callback callback = txd->callback;
+ void *param = txd->callback_param;
+
+ list_splice_init(&desc->tx_list, &bdma_chan->free_list);
+ list_move(&desc->desc_node, &bdma_chan->free_list);
+ bdma_chan->completed_cookie = txd->cookie;
+
+ if (callback)
+ callback(param);
+}
+
+static void tsi721_dma_complete_all(struct tsi721_bdma_chan *bdma_chan)
+{
+ struct tsi721_tx_desc *desc, *_d;
+ LIST_HEAD(list);
+
+ BUG_ON(!tsi721_dma_is_idle(bdma_chan));
+
+ if (!list_empty(&bdma_chan->queue))
+ tsi721_start_dma(bdma_chan);
+
+ list_splice_init(&bdma_chan->active_list, &list);
+ list_splice_init(&bdma_chan->queue, &bdma_chan->active_list);
+
+ list_for_each_entry_safe(desc, _d, &list, desc_node)
+ tsi721_dma_chain_complete(bdma_chan, desc);
+}
+
+static void tsi721_clr_stat(struct tsi721_bdma_chan *bdma_chan)
+{
+ u32 srd_ptr;
+ u64 *sts_ptr;
+ int i, j;
+
+ /* Check and clear descriptor status FIFO entries */
+ srd_ptr = bdma_chan->sts_rdptr;
+ sts_ptr = bdma_chan->sts_base;
+ j = srd_ptr * 8;
+ while (sts_ptr[j]) {
+ for (i = 0; i < 8 && sts_ptr[j]; i++, j++)
+ sts_ptr[j] = 0;
+
+ ++srd_ptr;
+ srd_ptr %= bdma_chan->sts_size;
+ j = srd_ptr * 8;
+ }
+
+ iowrite32(srd_ptr, bdma_chan->regs + TSI721_DMAC_DSRP);
+ bdma_chan->sts_rdptr = srd_ptr;
+}
+
+static void tsi721_advance_work(struct tsi721_bdma_chan *bdma_chan)
+{
+ if (list_empty(&bdma_chan->active_list) ||
+ list_is_singular(&bdma_chan->active_list)) {
+ dev_dbg(bdma_chan->dchan.device->dev,
+ "%s: Active_list empty\n", __func__);
+ tsi721_dma_complete_all(bdma_chan);
+ } else {
+ dev_dbg(bdma_chan->dchan.device->dev,
+ "%s: Active_list NOT empty\n", __func__);
+ tsi721_dma_chain_complete(bdma_chan,
+ tsi721_dma_first_active(bdma_chan));
+ tsi721_start_dma(bdma_chan);
+ }
+}
+
+static void tsi721_dma_tasklet(unsigned long data)
+{
+ struct tsi721_bdma_chan *bdma_chan = (struct tsi721_bdma_chan *)data;
+ u32 dmac_int, dmac_sts;
+
+ dmac_int = ioread32(bdma_chan->regs + TSI721_DMAC_INT);
+ dev_dbg(bdma_chan->dchan.device->dev, "%s: DMAC%d_INT = 0x%x\n",
+ __func__, bdma_chan->id, dmac_int);
+ /* Clear channel interrupts */
+ iowrite32(dmac_int, bdma_chan->regs + TSI721_DMAC_INT);
+
+ if (dmac_int & TSI721_DMAC_INT_ERR) {
+ dmac_sts = ioread32(bdma_chan->regs + TSI721_DMAC_STS);
+ dev_err(bdma_chan->dchan.device->dev,
+ "%s: DMA ERROR - DMAC%d_STS = 0x%x\n",
+ __func__, bdma_chan->id, dmac_sts);
+ }
+
+ if (dmac_int & TSI721_DMAC_INT_STFULL) {
+ dev_err(bdma_chan->dchan.device->dev,
+ "%s: DMAC%d descriptor status FIFO is full\n",
+ __func__, bdma_chan->id);
+ }
+
+ if (dmac_int & (TSI721_DMAC_INT_DONE | TSI721_DMAC_INT_IOFDONE)) {
+ tsi721_clr_stat(bdma_chan);
+ spin_lock(&bdma_chan->lock);
+ tsi721_advance_work(bdma_chan);
+ spin_unlock(&bdma_chan->lock);
+ }
+
+ /* Re-Enable BDMA channel interrupts */
+ iowrite32(TSI721_DMAC_INT_ALL, bdma_chan->regs + TSI721_DMAC_INTE);
+}
+
+static dma_cookie_t tsi721_tx_submit(struct dma_async_tx_descriptor *txd)
+{
+ struct tsi721_tx_desc *desc = to_tsi721_desc(txd);
+ struct tsi721_bdma_chan *bdma_chan = to_tsi721_chan(txd->chan);
+ dma_cookie_t cookie;
+
+ spin_lock_bh(&bdma_chan->lock);
+
+ cookie = txd->chan->cookie;
+ if (++cookie < 0)
+ cookie = 1;
+ txd->chan->cookie = cookie;
+ txd->cookie = cookie;
+
+ if (list_empty(&bdma_chan->active_list)) {
+ list_add_tail(&desc->desc_node, &bdma_chan->active_list);
+ tsi721_start_dma(bdma_chan);
+ } else {
+ list_add_tail(&desc->desc_node, &bdma_chan->queue);
+ }
+
+ spin_unlock_bh(&bdma_chan->lock);
+ return cookie;
+}
+
+static int tsi721_alloc_chan_resources(struct dma_chan *dchan)
+{
+ struct tsi721_bdma_chan *bdma_chan = to_tsi721_chan(dchan);
+#ifdef CONFIG_PCI_MSI
+ struct tsi721_device *priv = to_tsi721(dchan->device);
+#endif
+ struct tsi721_tx_desc *desc = NULL;
+ LIST_HEAD(tmp_list);
+ int i;
+ int rc;
+
+ if (bdma_chan->bd_base)
+ return bdma_chan->bd_num - 1;
+
+ /* Initialize BDMA channel */
+ if (tsi721_bdma_ch_init(bdma_chan)) {
+ dev_err(dchan->device->dev, "Unable to initialize data DMA"
+ " channel %d, aborting\n", bdma_chan->id);
+ return -ENOMEM;
+ }
+
+ /* Alocate matching number of logical descriptors */
+ desc = kcalloc((bdma_chan->bd_num - 1), sizeof(struct tsi721_tx_desc),
+ GFP_KERNEL);
+ if (!desc) {
+ dev_err(dchan->device->dev,
+ "Failed to allocate logical descriptors\n");
+ rc = -ENOMEM;
+ goto err_out;
+ }
+
+ bdma_chan->tx_desc = desc;
+
+ for (i = 0; i < bdma_chan->bd_num - 1; i++) {
+ dma_async_tx_descriptor_init(&desc[i].txd, dchan);
+ desc[i].txd.tx_submit = tsi721_tx_submit;
+ desc[i].txd.flags = DMA_CTRL_ACK;
+ INIT_LIST_HEAD(&desc[i].tx_list);
+ list_add_tail(&desc[i].desc_node, &tmp_list);
+ }
+
+ spin_lock_bh(&bdma_chan->lock);
+ list_splice(&tmp_list, &bdma_chan->free_list);
+ bdma_chan->completed_cookie = dchan->cookie = 1;
+ spin_unlock_bh(&bdma_chan->lock);
+
+#ifdef CONFIG_PCI_MSI
+ if (priv->flags & TSI721_USING_MSIX) {
+ /* Request interrupt service if we are in MSI-X mode */
+ rc = request_irq(
+ priv->msix[TSI721_VECT_DMA0_DONE +
+ bdma_chan->id].vector,
+ tsi721_bdma_msix, 0,
+ priv->msix[TSI721_VECT_DMA0_DONE +
+ bdma_chan->id].irq_name,
+ (void *)bdma_chan);
+
+ if (rc) {
+ dev_dbg(dchan->device->dev,
+ "Unable to allocate MSI-X interrupt for "
+ "BDMA%d-DONE\n", bdma_chan->id);
+ goto err_out;
+ }
+
+ rc = request_irq(priv->msix[TSI721_VECT_DMA0_INT +
+ bdma_chan->id].vector,
+ tsi721_bdma_msix, 0,
+ priv->msix[TSI721_VECT_DMA0_INT +
+ bdma_chan->id].irq_name,
+ (void *)bdma_chan);
+
+ if (rc) {
+ dev_dbg(dchan->device->dev,
+ "Unable to allocate MSI-X interrupt for "
+ "BDMA%d-INT\n", bdma_chan->id);
+ free_irq(
+ priv->msix[TSI721_VECT_DMA0_DONE +
+ bdma_chan->id].vector,
+ (void *)bdma_chan);
+ rc = -EIO;
+ goto err_out;
+ }
+ }
+#endif /* CONFIG_PCI_MSI */
+
+ tasklet_enable(&bdma_chan->tasklet);
+ tsi721_bdma_interrupt_enable(bdma_chan, 1);
+
+ return bdma_chan->bd_num - 1;
+
+err_out:
+ kfree(desc);
+ tsi721_bdma_ch_free(bdma_chan);
+ return rc;
+}
+
+static void tsi721_free_chan_resources(struct dma_chan *dchan)
+{
+ struct tsi721_bdma_chan *bdma_chan = to_tsi721_chan(dchan);
+#ifdef CONFIG_PCI_MSI
+ struct tsi721_device *priv = to_tsi721(dchan->device);
+#endif
+ LIST_HEAD(list);
+
+ dev_dbg(dchan->device->dev, "%s: Entry\n", __func__);
+
+ if (bdma_chan->bd_base == NULL)
+ return;
+
+ BUG_ON(!list_empty(&bdma_chan->active_list));
+ BUG_ON(!list_empty(&bdma_chan->queue));
+
+ tasklet_disable(&bdma_chan->tasklet);
+
+ spin_lock_bh(&bdma_chan->lock);
+ list_splice_init(&bdma_chan->free_list, &list);
+ spin_unlock_bh(&bdma_chan->lock);
+
+ tsi721_bdma_interrupt_enable(bdma_chan, 0);
+
+#ifdef CONFIG_PCI_MSI
+ if (priv->flags & TSI721_USING_MSIX) {
+ free_irq(priv->msix[TSI721_VECT_DMA0_DONE +
+ bdma_chan->id].vector, (void *)bdma_chan);
+ free_irq(priv->msix[TSI721_VECT_DMA0_INT +
+ bdma_chan->id].vector, (void *)bdma_chan);
+ }
+#endif /* CONFIG_PCI_MSI */
+
+ tsi721_bdma_ch_free(bdma_chan);
+ kfree(bdma_chan->tx_desc);
+}
+
+static
+enum dma_status tsi721_tx_status(struct dma_chan *dchan, dma_cookie_t cookie,
+ struct dma_tx_state *txstate)
+{
+ struct tsi721_bdma_chan *bdma_chan = to_tsi721_chan(dchan);
+ dma_cookie_t last_used;
+ dma_cookie_t last_completed;
+ int ret;
+
+ spin_lock_bh(&bdma_chan->lock);
+ last_completed = bdma_chan->completed_cookie;
+ last_used = dchan->cookie;
+ spin_unlock_bh(&bdma_chan->lock);
+
+ ret = dma_async_is_complete(cookie, last_completed, last_used);
+
+ dma_set_tx_state(txstate, last_completed, last_used, 0);
+
+ dev_dbg(dchan->device->dev,
+ "%s: exit, ret: %d, last_completed: %d, last_used: %d\n",
+ __func__, ret, last_completed, last_used);
+
+ return ret;
+}
+
+static void tsi721_issue_pending(struct dma_chan *dchan)
+{
+ struct tsi721_bdma_chan *bdma_chan = to_tsi721_chan(dchan);
+
+ dev_dbg(dchan->device->dev, "%s: Entry\n", __func__);
+
+ if (tsi721_dma_is_idle(bdma_chan)) {
+ spin_lock_bh(&bdma_chan->lock);
+ tsi721_advance_work(bdma_chan);
+ spin_unlock_bh(&bdma_chan->lock);
+ } else
+ dev_dbg(dchan->device->dev,
+ "%s: DMA channel still busy\n", __func__);
+}
+
+static
+struct dma_async_tx_descriptor *tsi721_prep_rio_sg(struct dma_chan *dchan,
+ struct scatterlist *sgl, unsigned int sg_len,
+ enum dma_transfer_direction dir, unsigned long flags,
+ void *tinfo)
+{
+ struct tsi721_bdma_chan *bdma_chan = to_tsi721_chan(dchan);
+ struct tsi721_tx_desc *desc = NULL;
+ struct tsi721_tx_desc *first = NULL;
+ struct scatterlist *sg;
+ struct rio_dma_ext *rext = tinfo;
+ u64 rio_addr = rext->rio_addr; /* limited to 64-bit rio_addr for now */
+ unsigned int i;
+ u32 sys_size = dma_to_mport(dchan->device)->sys_size;
+ enum dma_rtype rtype;
+
+ if (!sgl || !sg_len) {
+ dev_err(dchan->device->dev, "%s: No SG list\n", __func__);
+ return NULL;
+ }
+
+ if (dir == DMA_DEV_TO_MEM)
+ rtype = NREAD;
+ else if (dir == DMA_MEM_TO_DEV) {
+ switch (rext->wr_type) {
+ case RDW_ALL_NWRITE:
+ rtype = ALL_NWRITE;
+ break;
+ case RDW_ALL_NWRITE_R:
+ rtype = ALL_NWRITE_R;
+ break;
+ case RDW_LAST_NWRITE_R:
+ default:
+ rtype = LAST_NWRITE_R;
+ break;
+ }
+ } else {
+ dev_err(dchan->device->dev,
+ "%s: Unsupported DMA direction option\n", __func__);
+ return NULL;
+ }
+
+ for_each_sg(sgl, sg, sg_len, i) {
+ int err;
+
+ dev_dbg(dchan->device->dev, "%s: sg #%d\n", __func__, i);
+ desc = tsi721_desc_get(bdma_chan);
+ if (!desc) {
+ dev_err(dchan->device->dev,
+ "Not enough descriptors available\n");
+ goto err_desc_get;
+ }
+
+ if (sg_is_last(sg))
+ desc->interrupt = (flags & DMA_PREP_INTERRUPT) != 0;
+ else
+ desc->interrupt = false;
+
+ desc->destid = rext->destid;
+ desc->rio_addr = rio_addr;
+ desc->rio_addr_u = 0;
+
+ err = tsi721_fill_desc(bdma_chan, desc, sg, rtype, sys_size);
+ if (err) {
+ dev_err(dchan->device->dev,
+ "Failed to build desc: %d\n", err);
+ goto err_desc_get;
+ }
+
+ rio_addr += sg_dma_len(sg);
+
+ if (!first)
+ first = desc;
+ else
+ list_add_tail(&desc->desc_node, &first->tx_list);
+ }
+
+ first->txd.cookie = -EBUSY;
+ desc->txd.flags = flags;
+
+ return &first->txd;
+
+err_desc_get:
+ tsi721_desc_put(bdma_chan, first);
+ return NULL;
+}
+
+static int tsi721_device_control(struct dma_chan *dchan, enum dma_ctrl_cmd cmd,
+ unsigned long arg)
+{
+ struct tsi721_bdma_chan *bdma_chan = to_tsi721_chan(dchan);
+ struct tsi721_tx_desc *desc, *_d;
+ LIST_HEAD(list);
+
+ dev_dbg(dchan->device->dev, "%s: Entry\n", __func__);
+
+ if (cmd != DMA_TERMINATE_ALL)
+ return -ENXIO;
+
+ spin_lock_bh(&bdma_chan->lock);
+
+ /* make sure to stop the transfer */
+ iowrite32(TSI721_DMAC_CTL_SUSP, bdma_chan->regs + TSI721_DMAC_CTL);
+
+ list_splice_init(&bdma_chan->active_list, &list);
+ list_splice_init(&bdma_chan->queue, &list);
+
+ list_for_each_entry_safe(desc, _d, &list, desc_node)
+ tsi721_dma_chain_complete(bdma_chan, desc);
+
+ spin_unlock_bh(&bdma_chan->lock);
+
+ return 0;
+}
+
+int __devinit tsi721_register_dma(struct tsi721_device *priv)
+{
+ int i;
+ int nr_channels = TSI721_DMA_MAXCH;
+ int err;
+ struct rio_mport *mport = priv->mport;
+
+ mport->dma.dev = &priv->pdev->dev;
+ mport->dma.chancnt = nr_channels;
+
+ INIT_LIST_HEAD(&mport->dma.channels);
+
+ for (i = 0; i < nr_channels; i++) {
+ struct tsi721_bdma_chan *bdma_chan = &priv->bdma[i];
+
+ if (i == TSI721_DMACH_MAINT)
+ continue;
+
+ bdma_chan->bd_num = 64;
+ bdma_chan->regs = priv->regs + TSI721_DMAC_BASE(i);
+
+ bdma_chan->dchan.device = &mport->dma;
+ bdma_chan->dchan.cookie = 1;
+ bdma_chan->dchan.chan_id = i;
+ bdma_chan->id = i;
+
+ spin_lock_init(&bdma_chan->lock);
+
+ INIT_LIST_HEAD(&bdma_chan->active_list);
+ INIT_LIST_HEAD(&bdma_chan->queue);
+ INIT_LIST_HEAD(&bdma_chan->free_list);
+
+ tasklet_init(&bdma_chan->tasklet, tsi721_dma_tasklet,
+ (unsigned long)bdma_chan);
+ tasklet_disable(&bdma_chan->tasklet);
+ list_add_tail(&bdma_chan->dchan.device_node,
+ &mport->dma.channels);
+ }
+
+ dma_cap_zero(mport->dma.cap_mask);
+ dma_cap_set(DMA_PRIVATE, mport->dma.cap_mask);
+ dma_cap_set(DMA_SLAVE, mport->dma.cap_mask);
+
+ mport->dma.device_alloc_chan_resources = tsi721_alloc_chan_resources;
+ mport->dma.device_free_chan_resources = tsi721_free_chan_resources;
+ mport->dma.device_tx_status = tsi721_tx_status;
+ mport->dma.device_issue_pending = tsi721_issue_pending;
+ mport->dma.device_prep_slave_sg = tsi721_prep_rio_sg;
+ mport->dma.device_control = tsi721_device_control;
+
+ err = dma_async_device_register(&mport->dma);
+ if (err)
+ dev_err(&priv->pdev->dev, "Failed to register DMA device\n");
+
+ return err;
+}
return 0;
}
+#ifdef CONFIG_RAPIDIO_DMA_ENGINE
+
+static bool rio_chan_filter(struct dma_chan *chan, void *arg)
+{
+ struct rio_dev *rdev = arg;
+
+ /* Check that DMA device belongs to the right MPORT */
+ return (rdev->net->hport ==
+ container_of(chan->device, struct rio_mport, dma));
+}
+
+/**
+ * rio_request_dma - request RapidIO capable DMA channel that supports
+ * specified target RapidIO device.
+ * @rdev: RIO device control structure
+ *
+ * Returns pointer to allocated DMA channel or NULL if failed.
+ */
+struct dma_chan *rio_request_dma(struct rio_dev *rdev)
+{
+ dma_cap_mask_t mask;
+ struct dma_chan *dchan;
+
+ dma_cap_zero(mask);
+ dma_cap_set(DMA_SLAVE, mask);
+ dchan = dma_request_channel(mask, rio_chan_filter, rdev);
+
+ return dchan;
+}
+EXPORT_SYMBOL_GPL(rio_request_dma);
+
+/**
+ * rio_release_dma - release specified DMA channel
+ * @dchan: DMA channel to release
+ */
+void rio_release_dma(struct dma_chan *dchan)
+{
+ dma_release_channel(dchan);
+}
+EXPORT_SYMBOL_GPL(rio_release_dma);
+
+/**
+ * rio_dma_prep_slave_sg - RapidIO specific wrapper
+ * for device_prep_slave_sg callback defined by DMAENGINE.
+ * @rdev: RIO device control structure
+ * @dchan: DMA channel to configure
+ * @data: RIO specific data descriptor
+ * @direction: DMA data transfer direction (TO or FROM the device)
+ * @flags: dmaengine defined flags
+ *
+ * Initializes RapidIO capable DMA channel for the specified data transfer.
+ * Uses DMA channel private extension to pass information related to remote
+ * target RIO device.
+ * Returns pointer to DMA transaction descriptor or NULL if failed.
+ */
+struct dma_async_tx_descriptor *rio_dma_prep_slave_sg(struct rio_dev *rdev,
+ struct dma_chan *dchan, struct rio_dma_data *data,
+ enum dma_transfer_direction direction, unsigned long flags)
+{
+ struct dma_async_tx_descriptor *txd = NULL;
+ struct rio_dma_ext rio_ext;
+
+ if (dchan->device->device_prep_slave_sg == NULL) {
+ pr_err("%s: prep_rio_sg == NULL\n", __func__);
+ return NULL;
+ }
+
+ rio_ext.destid = rdev->destid;
+ rio_ext.rio_addr_u = data->rio_addr_u;
+ rio_ext.rio_addr = data->rio_addr;
+ rio_ext.wr_type = data->wr_type;
+
+ txd = dmaengine_prep_rio_sg(dchan, data->sg, data->sg_len,
+ direction, flags, &rio_ext);
+
+ return txd;
+}
+EXPORT_SYMBOL_GPL(rio_dma_prep_slave_sg);
+
+#endif /* CONFIG_RAPIDIO_DMA_ENGINE */
+
static void rio_fixup_device(struct rio_dev *dev)
{
}
int max_uV, unsigned *selector)
{
struct anatop_regulator *anatop_reg = rdev_get_drvdata(reg);
- u32 val, sel;
+ u32 val, sel, mask;
int uv;
uv = min_uV;
val = anatop_reg->min_bit_val + sel;
*selector = sel;
dev_dbg(®->dev, "%s: calculated val %d\n", __func__, val);
- anatop_set_bits(anatop_reg->mfd,
- anatop_reg->control_reg,
- anatop_reg->vol_bit_shift,
- anatop_reg->vol_bit_width,
- val);
+ mask = ((1 << anatop_reg->vol_bit_width) - 1) <<
+ anatop_reg->vol_bit_shift;
+ val <<= anatop_reg->vol_bit_shift;
+ anatop_write_reg(anatop_reg->mfd, anatop_reg->control_reg, val, mask);
return 0;
}
if (!anatop_reg->control_reg)
return -ENOTSUPP;
- val = anatop_get_bits(anatop_reg->mfd,
- anatop_reg->control_reg,
- anatop_reg->vol_bit_shift,
- anatop_reg->vol_bit_width);
+ val = anatop_read_reg(anatop_reg->mfd, anatop_reg->control_reg);
+ val = (val & ((1 << anatop_reg->vol_bit_width) - 1)) >>
+ anatop_reg->vol_bit_shift;
return val - anatop_reg->min_bit_val;
}
static inline int tps65910_read(struct tps65910_reg *pmic, u8 reg)
{
- u8 val;
+ unsigned int val;
int err;
- err = pmic->mfd->read(pmic->mfd, reg, 1, &val);
+ err = tps65910_reg_read(pmic->mfd, reg, &val);
if (err)
return err;
return val;
}
-static inline int tps65910_write(struct tps65910_reg *pmic, u8 reg, u8 val)
-{
- return pmic->mfd->write(pmic->mfd, reg, 1, &val);
-}
-
static int tps65910_modify_bits(struct tps65910_reg *pmic, u8 reg,
u8 set_mask, u8 clear_mask)
{
data &= ~clear_mask;
data |= set_mask;
- err = tps65910_write(pmic, reg, data);
+ err = tps65910_reg_write(pmic->mfd, reg, data);
if (err)
dev_err(pmic->mfd->dev, "Write for reg 0x%x failed\n", reg);
return err;
}
-static int tps65910_reg_read(struct tps65910_reg *pmic, u8 reg)
+static int tps65910_reg_read_locked(struct tps65910_reg *pmic, u8 reg)
{
int data;
return data;
}
-static int tps65910_reg_write(struct tps65910_reg *pmic, u8 reg, u8 val)
+static int tps65910_reg_write_locked(struct tps65910_reg *pmic, u8 reg, u8 val)
{
int err;
mutex_lock(&pmic->mutex);
- err = tps65910_write(pmic, reg, val);
+ err = tps65910_reg_write(pmic->mfd, reg, val);
if (err < 0)
dev_err(pmic->mfd->dev, "Write for reg 0x%x failed\n", reg);
LDO_ST_MODE_BIT);
case REGULATOR_MODE_IDLE:
value = LDO_ST_ON_BIT | LDO_ST_MODE_BIT;
- return tps65910_set_bits(mfd, reg, value);
+ return tps65910_reg_set_bits(mfd, reg, value);
case REGULATOR_MODE_STANDBY:
- return tps65910_clear_bits(mfd, reg, LDO_ST_ON_BIT);
+ return tps65910_reg_clear_bits(mfd, reg, LDO_ST_ON_BIT);
}
return -EINVAL;
if (reg < 0)
return reg;
- value = tps65910_reg_read(pmic, reg);
+ value = tps65910_reg_read_locked(pmic, reg);
if (value < 0)
return value;
switch (id) {
case TPS65910_REG_VDD1:
- opvsel = tps65910_reg_read(pmic, TPS65910_VDD1_OP);
- mult = tps65910_reg_read(pmic, TPS65910_VDD1);
+ opvsel = tps65910_reg_read_locked(pmic, TPS65910_VDD1_OP);
+ mult = tps65910_reg_read_locked(pmic, TPS65910_VDD1);
mult = (mult & VDD1_VGAIN_SEL_MASK) >> VDD1_VGAIN_SEL_SHIFT;
- srvsel = tps65910_reg_read(pmic, TPS65910_VDD1_SR);
+ srvsel = tps65910_reg_read_locked(pmic, TPS65910_VDD1_SR);
sr = opvsel & VDD1_OP_CMD_MASK;
opvsel &= VDD1_OP_SEL_MASK;
srvsel &= VDD1_SR_SEL_MASK;
vselmax = 75;
break;
case TPS65910_REG_VDD2:
- opvsel = tps65910_reg_read(pmic, TPS65910_VDD2_OP);
- mult = tps65910_reg_read(pmic, TPS65910_VDD2);
+ opvsel = tps65910_reg_read_locked(pmic, TPS65910_VDD2_OP);
+ mult = tps65910_reg_read_locked(pmic, TPS65910_VDD2);
mult = (mult & VDD2_VGAIN_SEL_MASK) >> VDD2_VGAIN_SEL_SHIFT;
- srvsel = tps65910_reg_read(pmic, TPS65910_VDD2_SR);
+ srvsel = tps65910_reg_read_locked(pmic, TPS65910_VDD2_SR);
sr = opvsel & VDD2_OP_CMD_MASK;
opvsel &= VDD2_OP_SEL_MASK;
srvsel &= VDD2_SR_SEL_MASK;
vselmax = 75;
break;
case TPS65911_REG_VDDCTRL:
- opvsel = tps65910_reg_read(pmic, TPS65911_VDDCTRL_OP);
- srvsel = tps65910_reg_read(pmic, TPS65911_VDDCTRL_SR);
+ opvsel = tps65910_reg_read_locked(pmic, TPS65911_VDDCTRL_OP);
+ srvsel = tps65910_reg_read_locked(pmic, TPS65911_VDDCTRL_SR);
sr = opvsel & VDDCTRL_OP_CMD_MASK;
opvsel &= VDDCTRL_OP_SEL_MASK;
srvsel &= VDDCTRL_SR_SEL_MASK;
if (reg < 0)
return reg;
- value = tps65910_reg_read(pmic, reg);
+ value = tps65910_reg_read_locked(pmic, reg);
if (value < 0)
return value;
reg = pmic->get_ctrl_reg(id);
- value = tps65910_reg_read(pmic, reg);
+ value = tps65910_reg_read_locked(pmic, reg);
switch (id) {
case TPS65911_REG_LDO1:
tps65910_modify_bits(pmic, TPS65910_VDD1,
(dcdc_mult << VDD1_VGAIN_SEL_SHIFT),
VDD1_VGAIN_SEL_MASK);
- tps65910_reg_write(pmic, TPS65910_VDD1_OP, vsel);
+ tps65910_reg_write_locked(pmic, TPS65910_VDD1_OP, vsel);
break;
case TPS65910_REG_VDD2:
dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
tps65910_modify_bits(pmic, TPS65910_VDD2,
(dcdc_mult << VDD2_VGAIN_SEL_SHIFT),
VDD1_VGAIN_SEL_MASK);
- tps65910_reg_write(pmic, TPS65910_VDD2_OP, vsel);
+ tps65910_reg_write_locked(pmic, TPS65910_VDD2_OP, vsel);
break;
case TPS65911_REG_VDDCTRL:
vsel = selector + 3;
- tps65910_reg_write(pmic, TPS65911_VDDCTRL_OP, vsel);
+ tps65910_reg_write_locked(pmic, TPS65911_VDDCTRL_OP, vsel);
}
return 0;
/* External EN1 control */
if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1)
- ret = tps65910_set_bits(mfd,
+ ret = tps65910_reg_set_bits(mfd,
TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
else
- ret = tps65910_clear_bits(mfd,
+ ret = tps65910_reg_clear_bits(mfd,
TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
if (ret < 0) {
dev_err(mfd->dev,
/* External EN2 control */
if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2)
- ret = tps65910_set_bits(mfd,
+ ret = tps65910_reg_set_bits(mfd,
TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
else
- ret = tps65910_clear_bits(mfd,
+ ret = tps65910_reg_clear_bits(mfd,
TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
if (ret < 0) {
dev_err(mfd->dev,
if ((tps65910_chip_id(mfd) == TPS65910) &&
(id >= TPS65910_REG_VDIG1)) {
if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3)
- ret = tps65910_set_bits(mfd,
+ ret = tps65910_reg_set_bits(mfd,
TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
else
- ret = tps65910_clear_bits(mfd,
+ ret = tps65910_reg_clear_bits(mfd,
TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
if (ret < 0) {
dev_err(mfd->dev,
/* Return if no external control is selected */
if (!(ext_sleep_config & EXT_SLEEP_CONTROL)) {
/* Clear all sleep controls */
- ret = tps65910_clear_bits(mfd,
+ ret = tps65910_reg_clear_bits(mfd,
TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
if (!ret)
- ret = tps65910_clear_bits(mfd,
+ ret = tps65910_reg_clear_bits(mfd,
TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
if (ret < 0)
dev_err(mfd->dev,
(tps65910_chip_id(mfd) == TPS65911))) {
int op_reg_add = pmic->get_ctrl_reg(id) + 1;
int sr_reg_add = pmic->get_ctrl_reg(id) + 2;
- int opvsel = tps65910_reg_read(pmic, op_reg_add);
- int srvsel = tps65910_reg_read(pmic, sr_reg_add);
+ int opvsel = tps65910_reg_read_locked(pmic, op_reg_add);
+ int srvsel = tps65910_reg_read_locked(pmic, sr_reg_add);
if (opvsel & VDD1_OP_CMD_MASK) {
u8 reg_val = srvsel & VDD1_OP_SEL_MASK;
- ret = tps65910_reg_write(pmic, op_reg_add, reg_val);
+ ret = tps65910_reg_write_locked(pmic, op_reg_add,
+ reg_val);
if (ret < 0) {
dev_err(mfd->dev,
"Error in configuring op register\n");
return ret;
}
}
- ret = tps65910_reg_write(pmic, sr_reg_add, 0);
+ ret = tps65910_reg_write_locked(pmic, sr_reg_add, 0);
if (ret < 0) {
dev_err(mfd->dev, "Error in settting sr register\n");
return ret;
}
}
- ret = tps65910_clear_bits(mfd,
+ ret = tps65910_reg_clear_bits(mfd,
TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
if (!ret) {
if (ext_sleep_config & TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
- ret = tps65910_set_bits(mfd,
+ ret = tps65910_reg_set_bits(mfd,
TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
else
- ret = tps65910_clear_bits(mfd,
+ ret = tps65910_reg_clear_bits(mfd,
TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
}
if (ret < 0)
platform_set_drvdata(pdev, pmic);
/* Give control of all register to control port */
- tps65910_set_bits(pmic->mfd, TPS65910_DEVCTRL,
+ tps65910_reg_set_bits(pmic->mfd, TPS65910_DEVCTRL,
DEVCTRL_SR_CTL_I2C_SEL_MASK);
switch(tps65910_chip_id(tps65910)) {
goto err;
}
- irq = platform_get_irq_byname(pdev, "UV");
+ irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV"));
ret = request_threaded_irq(irq, NULL, wm831x_dcdc_uv_irq,
IRQF_TRIGGER_RISING, dcdc->name, dcdc);
if (ret != 0) {
goto err_regulator;
}
- irq = platform_get_irq_byname(pdev, "HC");
+ irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "HC"));
ret = request_threaded_irq(irq, NULL, wm831x_dcdc_oc_irq,
IRQF_TRIGGER_RISING, dcdc->name, dcdc);
if (ret != 0) {
return 0;
err_uv:
- free_irq(platform_get_irq_byname(pdev, "UV"), dcdc);
+ free_irq(wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV")),
+ dcdc);
err_regulator:
regulator_unregister(dcdc->regulator);
err:
static __devexit int wm831x_buckv_remove(struct platform_device *pdev)
{
struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
+ struct wm831x *wm831x = dcdc->wm831x;
platform_set_drvdata(pdev, NULL);
- free_irq(platform_get_irq_byname(pdev, "HC"), dcdc);
- free_irq(platform_get_irq_byname(pdev, "UV"), dcdc);
+ free_irq(wm831x_irq(wm831x, platform_get_irq_byname(pdev, "HC")),
+ dcdc);
+ free_irq(wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV")),
+ dcdc);
regulator_unregister(dcdc->regulator);
if (dcdc->dvs_gpio)
gpio_free(dcdc->dvs_gpio);
goto err;
}
- irq = platform_get_irq_byname(pdev, "UV");
+ irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV"));
ret = request_threaded_irq(irq, NULL, wm831x_dcdc_uv_irq,
IRQF_TRIGGER_RISING, dcdc->name, dcdc);
if (ret != 0) {
platform_set_drvdata(pdev, NULL);
- free_irq(platform_get_irq_byname(pdev, "UV"), dcdc);
+ free_irq(wm831x_irq(dcdc->wm831x, platform_get_irq_byname(pdev, "UV")),
+ dcdc);
regulator_unregister(dcdc->regulator);
return 0;
goto err;
}
- irq = platform_get_irq_byname(pdev, "UV");
+ irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV"));
ret = request_threaded_irq(irq, NULL, wm831x_dcdc_uv_irq,
IRQF_TRIGGER_RISING, dcdc->name,
dcdc);
platform_set_drvdata(pdev, NULL);
- free_irq(platform_get_irq_byname(pdev, "UV"), dcdc);
+ free_irq(wm831x_irq(dcdc->wm831x, platform_get_irq_byname(pdev, "UV")),
+ dcdc);
regulator_unregister(dcdc->regulator);
return 0;
goto err;
}
- irq = platform_get_irq(pdev, 0);
+ irq = wm831x_irq(wm831x, platform_get_irq(pdev, 0));
ret = request_threaded_irq(irq, NULL, wm831x_isink_irq,
IRQF_TRIGGER_RISING, isink->name, isink);
if (ret != 0) {
platform_set_drvdata(pdev, NULL);
- free_irq(platform_get_irq(pdev, 0), isink);
+ free_irq(wm831x_irq(isink->wm831x, platform_get_irq(pdev, 0)), isink);
regulator_unregister(isink->regulator);
goto err;
}
- irq = platform_get_irq_byname(pdev, "UV");
+ irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV"));
ret = request_threaded_irq(irq, NULL, wm831x_ldo_uv_irq,
IRQF_TRIGGER_RISING, ldo->name,
ldo);
platform_set_drvdata(pdev, NULL);
- free_irq(platform_get_irq_byname(pdev, "UV"), ldo);
+ free_irq(wm831x_irq(ldo->wm831x,
+ platform_get_irq_byname(pdev, "UV")), ldo);
regulator_unregister(ldo->regulator);
return 0;
goto err;
}
- irq = platform_get_irq_byname(pdev, "UV");
+ irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV"));
ret = request_threaded_irq(irq, NULL, wm831x_ldo_uv_irq,
IRQF_TRIGGER_RISING, ldo->name, ldo);
if (ret != 0) {
{
struct wm831x_ldo *ldo = platform_get_drvdata(pdev);
- free_irq(platform_get_irq_byname(pdev, "UV"), ldo);
+ free_irq(wm831x_irq(ldo->wm831x, platform_get_irq_byname(pdev, "UV")),
+ ldo);
regulator_unregister(ldo->regulator);
return 0;
* the recovery of the remote processor.
*/
static int rproc_iommu_fault(struct iommu_domain *domain, struct device *dev,
- unsigned long iova, int flags)
+ unsigned long iova, int flags, void *token)
{
dev_err(dev, "iommu fault: da 0x%lx flags 0x%x\n", iova, flags);
return -ENOMEM;
}
- iommu_set_fault_handler(domain, rproc_iommu_fault);
+ iommu_set_fault_handler(domain, rproc_iommu_fault, rproc);
ret = iommu_attach_device(domain, dev);
if (ret) {
This driver can also be built as a module. If so, the module
will be called rtc-msm6242.
-config RTC_DRV_IMXDI
- tristate "Freescale IMX DryIce Real Time Clock"
- depends on ARCH_MX25
- depends on RTC_CLASS
- help
- Support for Freescale IMX DryIce RTC
-
- This driver can also be built as a module, if so, the module
- will be called "rtc-imxdi".
-
-config RTC_MXC
- tristate "Freescale MXC Real Time Clock"
- depends on ARCH_MXC
- depends on RTC_CLASS
- help
- If you say yes here you get support for the Freescale MXC
- RTC module.
-
- This driver can also be built as a module, if so, the module
- will be called "rtc-mxc".
-
config RTC_DRV_BQ4802
tristate "TI BQ4802"
help
This driver can also be built as a module. If so, the module
will be called rtc-davinci.
+config RTC_DRV_IMXDI
+ tristate "Freescale IMX DryIce Real Time Clock"
+ depends on SOC_IMX25
+ depends on RTC_CLASS
+ help
+ Support for Freescale IMX DryIce RTC
+
+ This driver can also be built as a module, if so, the module
+ will be called "rtc-imxdi".
+
config RTC_DRV_OMAP
tristate "TI OMAP1"
depends on ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_DAVINCI_DA8XX
This driver can also be built as a module. If so, the module
will be called rtc-ls1x.
+config RTC_DRV_MXC
+ tristate "Freescale MXC Real Time Clock"
+ depends on ARCH_MXC
+ depends on RTC_CLASS
+ help
+ If you say yes here you get support for the Freescale MXC
+ RTC module.
+
+ This driver can also be built as a module, if so, the module
+ will be called "rtc-mxc".
+
endif # RTC_CLASS
obj-$(CONFIG_RTC_DRV_M48T35) += rtc-m48t35.o
obj-$(CONFIG_RTC_DRV_M48T59) += rtc-m48t59.o
obj-$(CONFIG_RTC_DRV_M48T86) += rtc-m48t86.o
-obj-$(CONFIG_RTC_MXC) += rtc-mxc.o
+obj-$(CONFIG_RTC_DRV_MXC) += rtc-mxc.o
obj-$(CONFIG_RTC_DRV_MAX6900) += rtc-max6900.o
obj-$(CONFIG_RTC_DRV_MAX8925) += rtc-max8925.o
obj-$(CONFIG_RTC_DRV_MAX8998) += rtc-max8998.o
#include <linux/string.h>
#include <linux/rtc.h>
#include <linux/bcd.h>
-
-
+#include <linux/rtc/ds1307.h>
/*
* We can't determine type by probing, but if we expect pre-Linux code
# define DS1337_BIT_A2I 0x02
# define DS1337_BIT_A1I 0x01
#define DS1339_REG_ALARM1_SECS 0x07
-#define DS1339_REG_TRICKLE 0x10
+
+#define DS13XX_TRICKLE_CHARGER_MAGIC 0xa0
#define RX8025_REG_CTRL1 0x0e
# define RX8025_BIT_2412 0x20
unsigned alarm:1;
u16 nvram_offset;
u16 nvram_size;
+ u16 trickle_charger_reg;
};
static const struct chip_desc chips[last_ds_type] = {
},
[ds_1339] = {
.alarm = 1,
+ .trickle_charger_reg = 0x10,
+ },
+ [ds_1340] = {
+ .trickle_charger_reg = 0x08,
+ },
+ [ds_1388] = {
+ .trickle_charger_reg = 0x0a,
},
[ds_3231] = {
.alarm = 1,
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
int want_irq = false;
unsigned char *buf;
+ struct ds1307_platform_data *pdata = client->dev.platform_data;
static const int bbsqi_bitpos[] = {
[ds_1337] = 0,
[ds_1339] = DS1339_BIT_BBSQI,
ds1307->client = client;
ds1307->type = id->driver_data;
- ds1307->offset = 0;
+
+ if (pdata && pdata->trickle_charger_setup && chip->trickle_charger_reg)
+ i2c_smbus_write_byte_data(client, chip->trickle_charger_reg,
+ DS13XX_TRICKLE_CHARGER_MAGIC | pdata->trickle_charger_setup);
buf = ds1307->regs;
if (i2c_check_functionality(adapter, I2C_FUNC_SMBUS_I2C_BLOCK)) {
.attrs = ep93xx_rtc_attrs,
};
-static int __init ep93xx_rtc_probe(struct platform_device *pdev)
+static int __devinit ep93xx_rtc_probe(struct platform_device *pdev)
{
struct ep93xx_rtc *ep93xx_rtc;
struct resource *res;
return err;
}
-static int __exit ep93xx_rtc_remove(struct platform_device *pdev)
+static int __devexit ep93xx_rtc_remove(struct platform_device *pdev)
{
struct ep93xx_rtc *ep93xx_rtc = platform_get_drvdata(pdev);
return 0;
}
-/* work with hotplug and coldplug */
-MODULE_ALIAS("platform:ep93xx-rtc");
-
static struct platform_driver ep93xx_rtc_driver = {
.driver = {
.name = "ep93xx-rtc",
.owner = THIS_MODULE,
},
- .remove = __exit_p(ep93xx_rtc_remove),
+ .probe = ep93xx_rtc_probe,
+ .remove = __devexit_p(ep93xx_rtc_remove),
};
-static int __init ep93xx_rtc_init(void)
-{
- return platform_driver_probe(&ep93xx_rtc_driver, ep93xx_rtc_probe);
-}
-
-static void __exit ep93xx_rtc_exit(void)
-{
- platform_driver_unregister(&ep93xx_rtc_driver);
-}
+module_platform_driver(ep93xx_rtc_driver);
MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
MODULE_DESCRIPTION("EP93XX RTC driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);
-
-module_init(ep93xx_rtc_init);
-module_exit(ep93xx_rtc_exit);
+MODULE_ALIAS("platform:ep93xx-rtc");
#include <linux/rtc.h>
#include <linux/slab.h>
#include <linux/io.h>
+#include <linux/of.h>
/*
* Clock and Power control register offsets
#define LPC32XX_RTC_PM_OPS NULL
#endif
+#ifdef CONFIG_OF
+static const struct of_device_id lpc32xx_rtc_match[] = {
+ { .compatible = "nxp,lpc3220-rtc" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, lpc32xx_rtc_match);
+#endif
+
static struct platform_driver lpc32xx_rtc_driver = {
.probe = lpc32xx_rtc_probe,
.remove = __devexit_p(lpc32xx_rtc_remove),
.driver = {
.name = RTC_NAME,
.owner = THIS_MODULE,
- .pm = LPC32XX_RTC_PM_OPS
+ .pm = LPC32XX_RTC_PM_OPS,
+ .of_match_table = of_match_ptr(lpc32xx_rtc_match),
},
};
static int m41t93_set_time(struct device *dev, struct rtc_time *tm)
{
struct spi_device *spi = to_spi_device(dev);
+ int tmp;
u8 buf[9] = {0x80}; /* write cmd + 8 data bytes */
u8 * const data = &buf[1]; /* ptr to first data byte */
return -EINVAL;
}
+ tmp = spi_w8r8(spi, M41T93_REG_FLAGS);
+ if (tmp < 0)
+ return tmp;
+
+ if (tmp & M41T93_FLAG_OF) {
+ dev_warn(&spi->dev, "OF bit is set, resetting.\n");
+ m41t93_set_reg(spi, M41T93_REG_FLAGS, tmp & ~M41T93_FLAG_OF);
+
+ tmp = spi_w8r8(spi, M41T93_REG_FLAGS);
+ if (tmp < 0) {
+ return tmp;
+ } else if (tmp & M41T93_FLAG_OF) {
+ /* OF cannot be immediately reset: oscillator has to be
+ * restarted. */
+ u8 reset_osc = buf[M41T93_REG_ST_SEC] | M41T93_FLAG_ST;
+
+ dev_warn(&spi->dev,
+ "OF bit is still set, kickstarting clock.\n");
+ m41t93_set_reg(spi, M41T93_REG_ST_SEC, reset_osc);
+ reset_osc &= ~M41T93_FLAG_ST;
+ m41t93_set_reg(spi, M41T93_REG_ST_SEC, reset_osc);
+ }
+ }
+
data[M41T93_REG_SSEC] = 0;
data[M41T93_REG_ST_SEC] = bin2bcd(tm->tm_sec);
data[M41T93_REG_MIN] = bin2bcd(tm->tm_min);
1. halt bit (HT) is set: the clock is running but update of readout
registers has been disabled due to power failure. This is normal
case after poweron. Time is valid after resetting HT bit.
- 2. oscillator fail bit (OF) is set. Oscillator has be stopped and
- time is invalid:
- a) OF can be immeditely reset.
- b) OF cannot be immediately reset: oscillator has to be restarted.
+ 2. oscillator fail bit (OF) is set: time is invalid.
*/
tmp = spi_w8r8(spi, M41T93_REG_ALM_HOUR_HT);
if (tmp < 0)
if (tmp & M41T93_FLAG_OF) {
ret = -EINVAL;
- dev_warn(&spi->dev, "OF bit is set, resetting.\n");
- m41t93_set_reg(spi, M41T93_REG_FLAGS, tmp & ~M41T93_FLAG_OF);
-
- tmp = spi_w8r8(spi, M41T93_REG_FLAGS);
- if (tmp < 0)
- return tmp;
- else if (tmp & M41T93_FLAG_OF) {
- u8 reset_osc = buf[M41T93_REG_ST_SEC] | M41T93_FLAG_ST;
-
- dev_warn(&spi->dev,
- "OF bit is still set, kickstarting clock.\n");
- m41t93_set_reg(spi, M41T93_REG_ST_SEC, reset_osc);
- reset_osc &= ~M41T93_FLAG_ST;
- m41t93_set_reg(spi, M41T93_REG_ST_SEC, reset_osc);
- }
+ dev_warn(&spi->dev, "OF bit is set, write time to restart.\n");
}
if (tmp & M41T93_FLAG_BL)
* 1970...2069.
*/
int c_polarity; /* 0: MO_C=1 means 19xx, otherwise MO_C=1 means 20xx */
+ int voltage_low; /* incicates if a low_voltage was detected */
};
/*
return -EIO;
}
- if (buf[PCF8563_REG_SC] & PCF8563_SC_LV)
+ if (buf[PCF8563_REG_SC] & PCF8563_SC_LV) {
+ pcf8563->voltage_low = 1;
dev_info(&client->dev,
"low voltage detected, date/time is not reliable.\n");
+ }
dev_dbg(&client->dev,
"%s: raw data is st1=%02x, st2=%02x, sec=%02x, min=%02x, hr=%02x, "
return 0;
}
+#ifdef CONFIG_RTC_INTF_DEV
+static int pcf8563_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
+{
+ struct pcf8563 *pcf8563 = i2c_get_clientdata(to_i2c_client(dev));
+ struct rtc_time tm;
+
+ switch (cmd) {
+ case RTC_VL_READ:
+ if (pcf8563->voltage_low)
+ dev_info(dev, "low voltage detected, date/time is not reliable.\n");
+
+ if (copy_to_user((void __user *)arg, &pcf8563->voltage_low,
+ sizeof(int)))
+ return -EFAULT;
+ return 0;
+ case RTC_VL_CLR:
+ /*
+ * Clear the VL bit in the seconds register in case
+ * the time has not been set already (which would
+ * have cleared it). This does not really matter
+ * because of the cached voltage_low value but do it
+ * anyway for consistency.
+ */
+ if (pcf8563_get_datetime(to_i2c_client(dev), &tm))
+ pcf8563_set_datetime(to_i2c_client(dev), &tm);
+
+ /* Clear the cached value. */
+ pcf8563->voltage_low = 0;
+
+ return 0;
+ default:
+ return -ENOIOCTLCMD;
+ }
+}
+#else
+#define pcf8563_rtc_ioctl NULL
+#endif
+
static int pcf8563_rtc_read_time(struct device *dev, struct rtc_time *tm)
{
return pcf8563_get_datetime(to_i2c_client(dev), tm);
}
static const struct rtc_class_ops pcf8563_rtc_ops = {
+ .ioctl = pcf8563_rtc_ioctl,
.read_time = pcf8563_rtc_read_time,
.set_time = pcf8563_rtc_set_time,
};
unsigned long events = 0;
rtcmis = readl(ldata->base + RTC_MIS);
- if (rtcmis) {
- writel(rtcmis, ldata->base + RTC_ICR);
-
- if (rtcmis & RTC_BIT_AI)
- events |= (RTC_AF | RTC_IRQF);
-
- /* Timer interrupt is only available in ST variants */
- if ((rtcmis & RTC_BIT_PI) &&
- (ldata->hw_designer == AMBA_VENDOR_ST))
- events |= (RTC_PF | RTC_IRQF);
-
+ if (rtcmis & RTC_BIT_AI) {
+ writel(RTC_BIT_AI, ldata->base + RTC_ICR);
+ events |= (RTC_AF | RTC_IRQF);
rtc_update_irq(ldata->rtc, 1, events);
return IRQ_HANDLED;
#define s3c_rtc_resume NULL
#endif
+#ifdef CONFIG_OF
static struct s3c_rtc_drv_data s3c_rtc_drv_data_array[] = {
[TYPE_S3C2410] = { TYPE_S3C2410 },
[TYPE_S3C2416] = { TYPE_S3C2416 },
[TYPE_S3C64XX] = { TYPE_S3C64XX },
};
-#ifdef CONFIG_OF
static const struct of_device_id s3c_rtc_dt_match[] = {
{
.compatible = "samsung,s3c2410-rtc",
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/module.h>
+#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/rtc.h>
#include <linux/slab.h>
clk_disable(config->clk);
}
+#ifdef CONFIG_OF
+static const struct of_device_id spear_rtc_id_table[] = {
+ { .compatible = "st,spear600-rtc" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, spear_rtc_id_table);
+#endif
+
static struct platform_driver spear_rtc_driver = {
.probe = spear_rtc_probe,
.remove = __devexit_p(spear_rtc_remove),
.shutdown = spear_rtc_shutdown,
.driver = {
.name = "rtc-spear",
+ .of_match_table = of_match_ptr(spear_rtc_id_table),
},
};
struct resource *res;
int ret;
- info = kzalloc(sizeof(struct tegra_rtc_info), GFP_KERNEL);
+ info = devm_kzalloc(&pdev->dev, sizeof(struct tegra_rtc_info),
+ GFP_KERNEL);
if (!info)
return -ENOMEM;
if (!res) {
dev_err(&pdev->dev,
"Unable to allocate resources for device.\n");
- ret = -EBUSY;
- goto err_free_info;
+ return -EBUSY;
}
- if (!request_mem_region(res->start, resource_size(res), pdev->name)) {
- dev_err(&pdev->dev,
- "Unable to request mem region for device.\n");
- ret = -EBUSY;
- goto err_free_info;
+ info->rtc_base = devm_request_and_ioremap(&pdev->dev, res);
+ if (!info->rtc_base) {
+ dev_err(&pdev->dev, "Unable to request mem region and grab IOs for device.\n");
+ return -EBUSY;
}
info->tegra_rtc_irq = platform_get_irq(pdev, 0);
- if (info->tegra_rtc_irq <= 0) {
- ret = -EBUSY;
- goto err_release_mem_region;
- }
-
- info->rtc_base = ioremap_nocache(res->start, resource_size(res));
- if (!info->rtc_base) {
- dev_err(&pdev->dev, "Unable to grab IOs for device.\n");
- ret = -EBUSY;
- goto err_release_mem_region;
- }
+ if (info->tegra_rtc_irq <= 0)
+ return -EBUSY;
/* set context info. */
info->pdev = pdev;
dev_err(&pdev->dev,
"Unable to register device (err=%d).\n",
ret);
- goto err_iounmap;
+ return ret;
}
- ret = request_irq(info->tegra_rtc_irq, tegra_rtc_irq_handler,
- IRQF_TRIGGER_HIGH, "rtc alarm", &pdev->dev);
+ ret = devm_request_irq(&pdev->dev, info->tegra_rtc_irq,
+ tegra_rtc_irq_handler, IRQF_TRIGGER_HIGH,
+ "rtc alarm", &pdev->dev);
if (ret) {
dev_err(&pdev->dev,
"Unable to request interrupt for device (err=%d).\n",
err_dev_unreg:
rtc_device_unregister(info->rtc_dev);
-err_iounmap:
- iounmap(info->rtc_base);
-err_release_mem_region:
- release_mem_region(res->start, resource_size(res));
-err_free_info:
- kfree(info);
return ret;
}
static int __devexit tegra_rtc_remove(struct platform_device *pdev)
{
struct tegra_rtc_info *info = platform_get_drvdata(pdev);
- struct resource *res;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -EBUSY;
- free_irq(info->tegra_rtc_irq, &pdev->dev);
rtc_device_unregister(info->rtc_dev);
- iounmap(info->rtc_base);
- release_mem_region(res->start, resource_size(res));
- kfree(info);
platform_set_drvdata(pdev, NULL);
{
struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
struct wm831x_rtc *wm831x_rtc;
- int alm_irq = platform_get_irq_byname(pdev, "ALM");
+ int alm_irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "ALM"));
int ret = 0;
wm831x_rtc = devm_kzalloc(&pdev->dev, sizeof(*wm831x_rtc), GFP_KERNEL);
#ifndef DASD_INT_H
#define DASD_INT_H
-#ifdef __KERNEL__
-
/* we keep old device allocation scheme; IOW, minors are still in 0..255 */
#define DASD_PER_MAJOR (1U << (MINORBITS - DASD_PARTN_BITS))
#define DASD_PARTN_MASK ((1 << DASD_PARTN_BITS) - 1)
#define dasd_eer_enabled(d) (0)
#endif /* CONFIG_DASD_ERR */
-#endif /* __KERNEL__ */
-
#endif /* DASD_H */
sccb.evbuf.event_qual = EQ_STORE_DATA;
sccb.evbuf.data_id = DI_FCP_DUMP;
sccb.evbuf.event_id = 4712;
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
sccb.evbuf.asa_size = ASA_SIZE_64;
#else
sccb.evbuf.asa_size = ASA_SIZE_32;
static int mgmt_alloc_cmd_data(struct beiscsi_hba *phba, struct be_dma_mem *cmd,
int iscsi_cmd, int size)
{
- cmd->va = pci_alloc_consistent(phba->ctrl.pdev, sizeof(size),
- &cmd->dma);
+ cmd->va = pci_alloc_consistent(phba->ctrl.pdev, size, &cmd->dma);
if (!cmd->va) {
SE_DEBUG(DBG_LVL_1, "Failed to allocate memory for if info\n");
return -ENOMEM;
}
- memset(cmd->va, 0, sizeof(size));
+ memset(cmd->va, 0, size);
cmd->size = size;
be_cmd_hdr_prepare(cmd->va, CMD_SUBSYSTEM_ISCSI, iscsi_cmd, size);
return 0;
vshost = vport->drv_port.im_port->shost;
fc_host_node_name(vshost) = wwn_to_u64((u8 *)&port_cfg.nwwn);
fc_host_port_name(vshost) = wwn_to_u64((u8 *)&port_cfg.pwwn);
+ fc_host_supported_classes(vshost) = FC_COS_CLASS3;
+
+ memset(fc_host_supported_fc4s(vshost), 0,
+ sizeof(fc_host_supported_fc4s(vshost)));
+
+ /* For FCP type 0x08 */
+ if (supported_fc4s & BFA_LPORT_ROLE_FCP_IM)
+ fc_host_supported_fc4s(vshost)[2] = 1;
+
+ /* For fibre channel services type 0x20 */
+ fc_host_supported_fc4s(vshost)[7] = 1;
+
+ fc_host_supported_speeds(vshost) =
+ bfad_im_supported_speeds(&bfad->bfa);
+ fc_host_maxframe_size(vshost) =
+ bfa_fcport_get_maxfrsize(&bfad->bfa);
+
fc_vport->dd_data = vport;
vport->drv_port.im_port->fc_vport = fc_vport;
} else if (rc == BFA_STATUS_INVALID_WWN)
return 0;
}
-static u32
+u32
bfad_im_supported_speeds(struct bfa_s *bfa)
{
struct bfa_ioc_attr_s *ioc_attr;
struct bfad_im_port_s *im_port, struct device *dev);
void bfad_im_scsi_host_free(struct bfad_s *bfad,
struct bfad_im_port_s *im_port);
+u32 bfad_im_supported_speeds(struct bfa_s *bfa);
#define MAX_FCP_TARGET 1024
#define MAX_FCP_LUN 16384
#include "bnx2fc_constants.h"
#define BNX2FC_NAME "bnx2fc"
-#define BNX2FC_VERSION "1.0.10"
+#define BNX2FC_VERSION "1.0.11"
#define PFX "bnx2fc: "
struct packet_type fip_packet_type;
struct workqueue_struct *timer_work_queue;
struct kref kref;
- struct fcoe_ctlr ctlr;
u8 vlan_enabled;
int vlan_id;
bool enabled;
};
-#define bnx2fc_from_ctlr(fip) container_of(fip, struct bnx2fc_interface, ctlr)
+#define bnx2fc_from_ctlr(x) \
+ ((struct bnx2fc_interface *)((x) + 1))
+
+#define bnx2fc_to_ctlr(x) \
+ ((struct fcoe_ctlr *)(((struct fcoe_ctlr *)(x)) - 1))
struct bnx2fc_lport {
struct list_head list;
struct fc_exch *exch = fc_seq_exch(seq);
struct fc_lport *lport = exch->lp;
u8 *mac;
- struct fc_frame_header *fh;
u8 op;
if (IS_ERR(fp))
mac = fr_cb(fp)->granted_mac;
if (is_zero_ether_addr(mac)) {
- fh = fc_frame_header_get(fp);
- if (fh->fh_type != FC_TYPE_ELS) {
- printk(KERN_ERR PFX "bnx2fc_flogi_resp:"
- "fh_type != FC_TYPE_ELS\n");
- fc_frame_free(fp);
- return;
- }
op = fc_frame_payload_op(fp);
if (lport->vport) {
if (op == ELS_LS_RJT) {
return;
}
}
- if (fcoe_ctlr_recv_flogi(fip, lport, fp)) {
- fc_frame_free(fp);
- return;
- }
+ fcoe_ctlr_recv_flogi(fip, lport, fp);
}
- fip->update_mac(lport, mac);
+ if (!is_zero_ether_addr(mac))
+ fip->update_mac(lport, mac);
done:
fc_lport_flogi_resp(seq, fp, lport);
}
{
struct fcoe_port *port = lport_priv(lport);
struct bnx2fc_interface *interface = port->priv;
- struct fcoe_ctlr *fip = &interface->ctlr;
+ struct fcoe_ctlr *fip = bnx2fc_to_ctlr(interface);
struct fc_frame_header *fh = fc_frame_header_get(fp);
switch (op) {
#define DRV_MODULE_NAME "bnx2fc"
#define DRV_MODULE_VERSION BNX2FC_VERSION
-#define DRV_MODULE_RELDATE "Jan 22, 2011"
+#define DRV_MODULE_RELDATE "Apr 24, 2012"
static char version[] __devinitdata =
static struct libfc_function_template bnx2fc_libfc_fcn_templ;
static struct scsi_host_template bnx2fc_shost_template;
static struct fc_function_template bnx2fc_transport_function;
+static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ;
static struct fc_function_template bnx2fc_vport_xport_function;
static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode);
static void __bnx2fc_destroy(struct bnx2fc_interface *interface);
static void bnx2fc_stop(struct bnx2fc_interface *interface);
static int __init bnx2fc_mod_init(void);
static void __exit bnx2fc_mod_exit(void);
+static void bnx2fc_ctlr_get_lesb(struct fcoe_ctlr_device *ctlr_dev);
unsigned int bnx2fc_debug_level;
module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR);
__fcoe_get_lesb(lport, fc_lesb, netdev);
}
+static void bnx2fc_ctlr_get_lesb(struct fcoe_ctlr_device *ctlr_dev)
+{
+ struct fcoe_ctlr *fip = fcoe_ctlr_device_priv(ctlr_dev);
+ struct net_device *netdev = bnx2fc_netdev(fip->lp);
+ struct fcoe_fc_els_lesb *fcoe_lesb;
+ struct fc_els_lesb fc_lesb;
+
+ __fcoe_get_lesb(fip->lp, &fc_lesb, netdev);
+ fcoe_lesb = (struct fcoe_fc_els_lesb *)(&fc_lesb);
+
+ ctlr_dev->lesb.lesb_link_fail =
+ ntohl(fcoe_lesb->lesb_link_fail);
+ ctlr_dev->lesb.lesb_vlink_fail =
+ ntohl(fcoe_lesb->lesb_vlink_fail);
+ ctlr_dev->lesb.lesb_miss_fka =
+ ntohl(fcoe_lesb->lesb_miss_fka);
+ ctlr_dev->lesb.lesb_symb_err =
+ ntohl(fcoe_lesb->lesb_symb_err);
+ ctlr_dev->lesb.lesb_err_block =
+ ntohl(fcoe_lesb->lesb_err_block);
+ ctlr_dev->lesb.lesb_fcs_error =
+ ntohl(fcoe_lesb->lesb_fcs_error);
+}
+EXPORT_SYMBOL(bnx2fc_ctlr_get_lesb);
+
+static void bnx2fc_fcf_get_vlan_id(struct fcoe_fcf_device *fcf_dev)
+{
+ struct fcoe_ctlr_device *ctlr_dev =
+ fcoe_fcf_dev_to_ctlr_dev(fcf_dev);
+ struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(ctlr_dev);
+ struct bnx2fc_interface *fcoe = fcoe_ctlr_priv(ctlr);
+
+ fcf_dev->vlan_id = fcoe->vlan_id;
+}
+
static void bnx2fc_clean_rx_queue(struct fc_lport *lp)
{
struct fcoe_percpu_s *bg;
struct sk_buff *skb;
struct fc_frame_header *fh;
struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
struct bnx2fc_hba *hba;
struct fcoe_port *port;
struct fcoe_hdr *hp;
port = (struct fcoe_port *)lport_priv(lport);
interface = port->priv;
+ ctlr = bnx2fc_to_ctlr(interface);
hba = interface->hba;
fh = fc_frame_header_get(fp);
}
if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
- if (!interface->ctlr.sel_fcf) {
+ if (!ctlr->sel_fcf) {
BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n");
kfree_skb(skb);
return -EINVAL;
}
- if (fcoe_ctlr_els_send(&interface->ctlr, lport, skb))
+ if (fcoe_ctlr_els_send(ctlr, lport, skb))
return 0;
}
/* fill up mac and fcoe headers */
eh = eth_hdr(skb);
eh->h_proto = htons(ETH_P_FCOE);
- if (interface->ctlr.map_dest)
+ if (ctlr->map_dest)
fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
else
/* insert GW address */
- memcpy(eh->h_dest, interface->ctlr.dest_addr, ETH_ALEN);
+ memcpy(eh->h_dest, ctlr->dest_addr, ETH_ALEN);
- if (unlikely(interface->ctlr.flogi_oxid != FC_XID_UNKNOWN))
- memcpy(eh->h_source, interface->ctlr.ctl_src_addr, ETH_ALEN);
+ if (unlikely(ctlr->flogi_oxid != FC_XID_UNKNOWN))
+ memcpy(eh->h_source, ctlr->ctl_src_addr, ETH_ALEN);
else
memcpy(eh->h_source, port->data_src_addr, ETH_ALEN);
{
struct fc_lport *lport;
struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
struct fc_frame_header *fh;
struct fcoe_rcv_info *fr;
struct fcoe_percpu_s *bg;
interface = container_of(ptype, struct bnx2fc_interface,
fcoe_packet_type);
- lport = interface->ctlr.lp;
+ ctlr = bnx2fc_to_ctlr(interface);
+ lport = ctlr->lp;
if (unlikely(lport == NULL)) {
printk(KERN_ERR PFX "bnx2fc_rcv: lport is NULL\n");
{
struct bnx2fc_hba *hba;
struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
struct fcoe_port *port;
u64 wwnn, wwpn;
port = lport_priv(lport);
interface = port->priv;
+ ctlr = bnx2fc_to_ctlr(interface);
hba = interface->hba;
/* require support for get_pauseparam ethtool op. */
if (!lport->vport) {
if (fcoe_get_wwn(netdev, &wwnn, NETDEV_FCOE_WWNN))
- wwnn = fcoe_wwn_from_mac(interface->ctlr.ctl_src_addr,
+ wwnn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
1, 0);
BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn);
fc_set_wwnn(lport, wwnn);
if (fcoe_get_wwn(netdev, &wwpn, NETDEV_FCOE_WWPN))
- wwpn = fcoe_wwn_from_mac(interface->ctlr.ctl_src_addr,
+ wwpn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
2, 0);
BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn);
struct fc_lport *lport;
struct fc_lport *vport;
struct bnx2fc_interface *interface, *tmp;
+ struct fcoe_ctlr *ctlr;
int wait_for_upload = 0;
u32 link_possible = 1;
if (interface->hba != hba)
continue;
- lport = interface->ctlr.lp;
+ ctlr = bnx2fc_to_ctlr(interface);
+ lport = ctlr->lp;
BNX2FC_HBA_DBG(lport, "netevent handler - event=%s %ld\n",
interface->netdev->name, event);
* on a stale vlan
*/
if (interface->enabled)
- fcoe_ctlr_link_up(&interface->ctlr);
- } else if (fcoe_ctlr_link_down(&interface->ctlr)) {
+ fcoe_ctlr_link_up(ctlr);
+ } else if (fcoe_ctlr_link_down(ctlr)) {
mutex_lock(&lport->lp_mutex);
list_for_each_entry(vport, &lport->vports, list)
fc_host_port_type(vport->host) =
struct net_device *orig_dev)
{
struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
interface = container_of(ptype, struct bnx2fc_interface,
fip_packet_type);
- fcoe_ctlr_recv(&interface->ctlr, skb);
+ ctlr = bnx2fc_to_ctlr(interface);
+ fcoe_ctlr_recv(ctlr, skb);
return 0;
}
{
struct net_device *netdev = interface->netdev;
struct net_device *physdev = interface->hba->phys_dev;
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
struct netdev_hw_addr *ha;
int sel_san_mac = 0;
if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
(is_valid_ether_addr(ha->addr))) {
- memcpy(interface->ctlr.ctl_src_addr, ha->addr,
+ memcpy(ctlr->ctl_src_addr, ha->addr,
ETH_ALEN);
sel_san_mac = 1;
BNX2FC_MISC_DBG("Found SAN MAC\n");
static void bnx2fc_interface_release(struct kref *kref)
{
+ struct fcoe_ctlr_device *ctlr_dev;
struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
struct net_device *netdev;
interface = container_of(kref, struct bnx2fc_interface, kref);
BNX2FC_MISC_DBG("Interface is being released\n");
+ ctlr = bnx2fc_to_ctlr(interface);
+ ctlr_dev = fcoe_ctlr_to_ctlr_dev(ctlr);
netdev = interface->netdev;
/* tear-down FIP controller */
if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags))
- fcoe_ctlr_destroy(&interface->ctlr);
+ fcoe_ctlr_destroy(ctlr);
- kfree(interface);
+ fcoe_ctlr_device_delete(ctlr_dev);
dev_put(netdev);
module_put(THIS_MODULE);
struct net_device *netdev,
enum fip_state fip_mode)
{
+ struct fcoe_ctlr_device *ctlr_dev;
struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
+ int size;
int rc = 0;
- interface = kzalloc(sizeof(*interface), GFP_KERNEL);
- if (!interface) {
+ size = (sizeof(*interface) + sizeof(struct fcoe_ctlr));
+ ctlr_dev = fcoe_ctlr_device_add(&netdev->dev, &bnx2fc_fcoe_sysfs_templ,
+ size);
+ if (!ctlr_dev) {
printk(KERN_ERR PFX "Unable to allocate interface structure\n");
return NULL;
}
+ ctlr = fcoe_ctlr_device_priv(ctlr_dev);
+ interface = fcoe_ctlr_priv(ctlr);
dev_hold(netdev);
kref_init(&interface->kref);
interface->hba = hba;
interface->netdev = netdev;
/* Initialize FIP */
- fcoe_ctlr_init(&interface->ctlr, fip_mode);
- interface->ctlr.send = bnx2fc_fip_send;
- interface->ctlr.update_mac = bnx2fc_update_src_mac;
- interface->ctlr.get_src_addr = bnx2fc_get_src_mac;
+ fcoe_ctlr_init(ctlr, fip_mode);
+ ctlr->send = bnx2fc_fip_send;
+ ctlr->update_mac = bnx2fc_update_src_mac;
+ ctlr->get_src_addr = bnx2fc_get_src_mac;
set_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags);
rc = bnx2fc_interface_setup(interface);
if (!rc)
return interface;
- fcoe_ctlr_destroy(&interface->ctlr);
+ fcoe_ctlr_destroy(ctlr);
dev_put(netdev);
- kfree(interface);
+ fcoe_ctlr_device_delete(ctlr_dev);
return NULL;
}
static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
struct device *parent, int npiv)
{
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
struct fc_lport *lport, *n_port;
struct fcoe_port *port;
struct Scsi_Host *shost;
blport = kzalloc(sizeof(struct bnx2fc_lport), GFP_KERNEL);
if (!blport) {
- BNX2FC_HBA_DBG(interface->ctlr.lp, "Unable to alloc blport\n");
+ BNX2FC_HBA_DBG(ctlr->lp, "Unable to alloc blport\n");
return NULL;
}
static void bnx2fc_interface_cleanup(struct bnx2fc_interface *interface)
{
- struct fc_lport *lport = interface->ctlr.lp;
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
+ struct fc_lport *lport = ctlr->lp;
struct fcoe_port *port = lport_priv(lport);
struct bnx2fc_hba *hba = interface->hba;
static void __bnx2fc_destroy(struct bnx2fc_interface *interface)
{
- struct fc_lport *lport = interface->ctlr.lp;
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
+ struct fc_lport *lport = ctlr->lp;
struct fcoe_port *port = lport_priv(lport);
bnx2fc_interface_cleanup(interface);
{
struct bnx2fc_interface *interface = NULL;
struct workqueue_struct *timer_work_queue;
+ struct fcoe_ctlr *ctlr;
int rc = 0;
rtnl_lock();
mutex_lock(&bnx2fc_dev_lock);
interface = bnx2fc_interface_lookup(netdev);
- if (!interface || !interface->ctlr.lp) {
+ ctlr = bnx2fc_to_ctlr(interface);
+ if (!interface || !ctlr->lp) {
rc = -ENODEV;
printk(KERN_ERR PFX "bnx2fc_destroy: interface or lport not found\n");
goto netdev_err;
{
struct bnx2fc_hba *hba = handle;
struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
struct fc_lport *lport;
mutex_lock(&bnx2fc_dev_lock);
list_for_each_entry(interface, &if_list, list) {
if (interface->hba == hba) {
- lport = interface->ctlr.lp;
+ ctlr = bnx2fc_to_ctlr(interface);
+ lport = ctlr->lp;
/* Kick off Fabric discovery*/
printk(KERN_ERR PFX "ulp_init: start discovery\n");
lport->tt.frame_send = bnx2fc_xmit;
static void bnx2fc_stop(struct bnx2fc_interface *interface)
{
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
struct fc_lport *lport;
struct fc_lport *vport;
if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags))
return;
- lport = interface->ctlr.lp;
+ lport = ctlr->lp;
bnx2fc_port_shutdown(lport);
mutex_lock(&lport->lp_mutex);
FC_PORTTYPE_UNKNOWN;
mutex_unlock(&lport->lp_mutex);
fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
- fcoe_ctlr_link_down(&interface->ctlr);
+ fcoe_ctlr_link_down(ctlr);
fcoe_clean_pending_queue(lport);
}
static void bnx2fc_start_disc(struct bnx2fc_interface *interface)
{
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
struct fc_lport *lport;
int wait_cnt = 0;
return;
}
- lport = interface->ctlr.lp;
+ lport = ctlr->lp;
BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");
if (!bnx2fc_link_ok(lport) && interface->enabled) {
BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
- fcoe_ctlr_link_up(&interface->ctlr);
+ fcoe_ctlr_link_up(ctlr);
fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
}
/* wait for the FCF to be selected before issuing FLOGI */
- while (!interface->ctlr.sel_fcf) {
+ while (!ctlr->sel_fcf) {
msleep(250);
/* give up after 3 secs */
if (++wait_cnt > 12)
static int bnx2fc_disable(struct net_device *netdev)
{
struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
int rc = 0;
rtnl_lock();
mutex_lock(&bnx2fc_dev_lock);
interface = bnx2fc_interface_lookup(netdev);
- if (!interface || !interface->ctlr.lp) {
+ ctlr = bnx2fc_to_ctlr(interface);
+ if (!interface || !ctlr->lp) {
rc = -ENODEV;
printk(KERN_ERR PFX "bnx2fc_disable: interface or lport not found\n");
} else {
interface->enabled = false;
- fcoe_ctlr_link_down(&interface->ctlr);
- fcoe_clean_pending_queue(interface->ctlr.lp);
+ fcoe_ctlr_link_down(ctlr);
+ fcoe_clean_pending_queue(ctlr->lp);
}
mutex_unlock(&bnx2fc_dev_lock);
static int bnx2fc_enable(struct net_device *netdev)
{
struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
int rc = 0;
rtnl_lock();
mutex_lock(&bnx2fc_dev_lock);
interface = bnx2fc_interface_lookup(netdev);
- if (!interface || !interface->ctlr.lp) {
+ ctlr = bnx2fc_to_ctlr(interface);
+ if (!interface || !ctlr->lp) {
rc = -ENODEV;
printk(KERN_ERR PFX "bnx2fc_enable: interface or lport not found\n");
- } else if (!bnx2fc_link_ok(interface->ctlr.lp)) {
- fcoe_ctlr_link_up(&interface->ctlr);
+ } else if (!bnx2fc_link_ok(ctlr->lp)) {
+ fcoe_ctlr_link_up(ctlr);
interface->enabled = true;
}
*/
static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode)
{
+ struct fcoe_ctlr *ctlr;
struct bnx2fc_interface *interface;
struct bnx2fc_hba *hba;
struct net_device *phys_dev;
goto ifput_err;
}
+ ctlr = bnx2fc_to_ctlr(interface);
interface->vlan_id = vlan_id;
interface->vlan_enabled = 1;
lport->boot_time = jiffies;
/* Make this master N_port */
- interface->ctlr.lp = lport;
+ ctlr->lp = lport;
if (!bnx2fc_link_ok(lport)) {
- fcoe_ctlr_link_up(&interface->ctlr);
+ fcoe_ctlr_link_up(ctlr);
fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
}
module_init(bnx2fc_mod_init);
module_exit(bnx2fc_mod_exit);
+static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ = {
+ .get_fcoe_ctlr_mode = fcoe_ctlr_get_fip_mode,
+ .get_fcoe_ctlr_link_fail = bnx2fc_ctlr_get_lesb,
+ .get_fcoe_ctlr_vlink_fail = bnx2fc_ctlr_get_lesb,
+ .get_fcoe_ctlr_miss_fka = bnx2fc_ctlr_get_lesb,
+ .get_fcoe_ctlr_symb_err = bnx2fc_ctlr_get_lesb,
+ .get_fcoe_ctlr_err_block = bnx2fc_ctlr_get_lesb,
+ .get_fcoe_ctlr_fcs_error = bnx2fc_ctlr_get_lesb,
+
+ .get_fcoe_fcf_selected = fcoe_fcf_get_selected,
+ .get_fcoe_fcf_vlan_id = bnx2fc_fcf_get_vlan_id,
+};
+
static struct fc_function_template bnx2fc_transport_function = {
.show_host_node_name = 1,
.show_host_port_name = 1,
{
struct fc_lport *lport = port->lport;
struct bnx2fc_interface *interface = port->priv;
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
struct bnx2fc_hba *hba = interface->hba;
struct kwqe *kwqe_arr[4];
struct fcoe_kwqe_conn_offload1 ofld_req1;
ofld_req4.src_mac_addr_mid[1] = port->data_src_addr[2];
ofld_req4.src_mac_addr_hi[0] = port->data_src_addr[1];
ofld_req4.src_mac_addr_hi[1] = port->data_src_addr[0];
- ofld_req4.dst_mac_addr_lo[0] = interface->ctlr.dest_addr[5];
+ ofld_req4.dst_mac_addr_lo[0] = ctlr->dest_addr[5];
/* fcf mac */
- ofld_req4.dst_mac_addr_lo[1] = interface->ctlr.dest_addr[4];
- ofld_req4.dst_mac_addr_mid[0] = interface->ctlr.dest_addr[3];
- ofld_req4.dst_mac_addr_mid[1] = interface->ctlr.dest_addr[2];
- ofld_req4.dst_mac_addr_hi[0] = interface->ctlr.dest_addr[1];
- ofld_req4.dst_mac_addr_hi[1] = interface->ctlr.dest_addr[0];
+ ofld_req4.dst_mac_addr_lo[1] = ctlr->dest_addr[4];
+ ofld_req4.dst_mac_addr_mid[0] = ctlr->dest_addr[3];
+ ofld_req4.dst_mac_addr_mid[1] = ctlr->dest_addr[2];
+ ofld_req4.dst_mac_addr_hi[0] = ctlr->dest_addr[1];
+ ofld_req4.dst_mac_addr_hi[1] = ctlr->dest_addr[0];
ofld_req4.lcq_addr_lo = (u32) tgt->lcq_dma;
ofld_req4.lcq_addr_hi = (u32)((u64) tgt->lcq_dma >> 32);
{
struct kwqe *kwqe_arr[2];
struct bnx2fc_interface *interface = port->priv;
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
struct bnx2fc_hba *hba = interface->hba;
struct fcoe_kwqe_conn_enable_disable enbl_req;
struct fc_lport *lport = port->lport;
enbl_req.src_mac_addr_hi[1] = port->data_src_addr[0];
memcpy(tgt->src_addr, port->data_src_addr, ETH_ALEN);
- enbl_req.dst_mac_addr_lo[0] = interface->ctlr.dest_addr[5];
- enbl_req.dst_mac_addr_lo[1] = interface->ctlr.dest_addr[4];
- enbl_req.dst_mac_addr_mid[0] = interface->ctlr.dest_addr[3];
- enbl_req.dst_mac_addr_mid[1] = interface->ctlr.dest_addr[2];
- enbl_req.dst_mac_addr_hi[0] = interface->ctlr.dest_addr[1];
- enbl_req.dst_mac_addr_hi[1] = interface->ctlr.dest_addr[0];
+ enbl_req.dst_mac_addr_lo[0] = ctlr->dest_addr[5];
+ enbl_req.dst_mac_addr_lo[1] = ctlr->dest_addr[4];
+ enbl_req.dst_mac_addr_mid[0] = ctlr->dest_addr[3];
+ enbl_req.dst_mac_addr_mid[1] = ctlr->dest_addr[2];
+ enbl_req.dst_mac_addr_hi[0] = ctlr->dest_addr[1];
+ enbl_req.dst_mac_addr_hi[1] = ctlr->dest_addr[0];
port_id = fc_host_port_id(lport->host);
if (port_id != tgt->sid) {
struct bnx2fc_rport *tgt)
{
struct bnx2fc_interface *interface = port->priv;
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
struct bnx2fc_hba *hba = interface->hba;
struct fcoe_kwqe_conn_enable_disable disable_req;
struct kwqe *kwqe_arr[2];
disable_req.src_mac_addr_hi[0] = tgt->src_addr[1];
disable_req.src_mac_addr_hi[1] = tgt->src_addr[0];
- disable_req.dst_mac_addr_lo[0] = interface->ctlr.dest_addr[5];
- disable_req.dst_mac_addr_lo[1] = interface->ctlr.dest_addr[4];
- disable_req.dst_mac_addr_mid[0] = interface->ctlr.dest_addr[3];
- disable_req.dst_mac_addr_mid[1] = interface->ctlr.dest_addr[2];
- disable_req.dst_mac_addr_hi[0] = interface->ctlr.dest_addr[1];
- disable_req.dst_mac_addr_hi[1] = interface->ctlr.dest_addr[0];
+ disable_req.dst_mac_addr_lo[0] = ctlr->dest_addr[5];
+ disable_req.dst_mac_addr_lo[1] = ctlr->dest_addr[4];
+ disable_req.dst_mac_addr_mid[0] = ctlr->dest_addr[3];
+ disable_req.dst_mac_addr_mid[1] = ctlr->dest_addr[2];
+ disable_req.dst_mac_addr_hi[0] = ctlr->dest_addr[1];
+ disable_req.dst_mac_addr_hi[1] = ctlr->dest_addr[0];
port_id = tgt->sid;
disable_req.s_id[0] = (port_id & 0x000000FF);
spin_lock_bh(&tgt->tgt_lock);
io_req->wait_for_comp = 0;
- if (!(test_bit(BNX2FC_FLAG_TM_COMPL, &io_req->req_flags)))
+ if (!(test_bit(BNX2FC_FLAG_TM_COMPL, &io_req->req_flags))) {
set_bit(BNX2FC_FLAG_TM_TIMEOUT, &io_req->req_flags);
+ if (io_req->on_tmf_queue) {
+ list_del_init(&io_req->link);
+ io_req->on_tmf_queue = 0;
+ }
+ io_req->wait_for_comp = 1;
+ bnx2fc_initiate_cleanup(io_req);
+ spin_unlock_bh(&tgt->tgt_lock);
+ rc = wait_for_completion_timeout(&io_req->tm_done,
+ BNX2FC_FW_TIMEOUT);
+ spin_lock_bh(&tgt->tgt_lock);
+ io_req->wait_for_comp = 0;
+ if (!rc)
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ }
spin_unlock_bh(&tgt->tgt_lock);
return bnx2fc_initiate_tmf(sc_cmd, FCP_TMF_LUN_RESET);
}
+int bnx2fc_expl_logo(struct fc_lport *lport, struct bnx2fc_cmd *io_req)
+{
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ struct fc_rport_priv *rdata = tgt->rdata;
+ int logo_issued;
+ int rc = SUCCESS;
+ int wait_cnt = 0;
+
+ BNX2FC_IO_DBG(io_req, "Expl logo - tgt flags = 0x%lx\n",
+ tgt->flags);
+ logo_issued = test_and_set_bit(BNX2FC_FLAG_EXPL_LOGO,
+ &tgt->flags);
+ io_req->wait_for_comp = 1;
+ bnx2fc_initiate_cleanup(io_req);
+
+ spin_unlock_bh(&tgt->tgt_lock);
+
+ wait_for_completion(&io_req->tm_done);
+
+ io_req->wait_for_comp = 0;
+ /*
+ * release the reference taken in eh_abort to allow the
+ * target to re-login after flushing IOs
+ */
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+
+ if (!logo_issued) {
+ clear_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags);
+ mutex_lock(&lport->disc.disc_mutex);
+ lport->tt.rport_logoff(rdata);
+ mutex_unlock(&lport->disc.disc_mutex);
+ do {
+ msleep(BNX2FC_RELOGIN_WAIT_TIME);
+ if (wait_cnt++ > BNX2FC_RELOGIN_WAIT_CNT) {
+ rc = FAILED;
+ break;
+ }
+ } while (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags));
+ }
+ spin_lock_bh(&tgt->tgt_lock);
+ return rc;
+}
/**
* bnx2fc_eh_abort - eh_abort_handler api to abort an outstanding
* SCSI command
struct fc_rport_libfc_priv *rp = rport->dd_data;
struct bnx2fc_cmd *io_req;
struct fc_lport *lport;
- struct fc_rport_priv *rdata;
struct bnx2fc_rport *tgt;
- int logo_issued;
- int wait_cnt = 0;
int rc = FAILED;
list_add_tail(&io_req->link, &tgt->io_retire_queue);
init_completion(&io_req->tm_done);
- io_req->wait_for_comp = 1;
- if (!test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags)) {
- /* Cancel the current timer running on this io_req */
- if (cancel_delayed_work(&io_req->timeout_work))
- kref_put(&io_req->refcount,
- bnx2fc_cmd_release); /* drop timer hold */
- set_bit(BNX2FC_FLAG_EH_ABORT, &io_req->req_flags);
- rc = bnx2fc_initiate_abts(io_req);
- } else {
+ if (test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags)) {
printk(KERN_ERR PFX "eh_abort: io_req (xid = 0x%x) "
"already in abts processing\n", io_req->xid);
if (cancel_delayed_work(&io_req->timeout_work))
kref_put(&io_req->refcount,
bnx2fc_cmd_release); /* drop timer hold */
- bnx2fc_initiate_cleanup(io_req);
+ rc = bnx2fc_expl_logo(lport, io_req);
+ goto out;
+ }
+ /* Cancel the current timer running on this io_req */
+ if (cancel_delayed_work(&io_req->timeout_work))
+ kref_put(&io_req->refcount,
+ bnx2fc_cmd_release); /* drop timer hold */
+ set_bit(BNX2FC_FLAG_EH_ABORT, &io_req->req_flags);
+ io_req->wait_for_comp = 1;
+ rc = bnx2fc_initiate_abts(io_req);
+ if (rc == FAILED) {
+ bnx2fc_initiate_cleanup(io_req);
spin_unlock_bh(&tgt->tgt_lock);
-
wait_for_completion(&io_req->tm_done);
-
spin_lock_bh(&tgt->tgt_lock);
io_req->wait_for_comp = 0;
- rdata = io_req->tgt->rdata;
- logo_issued = test_and_set_bit(BNX2FC_FLAG_EXPL_LOGO,
- &tgt->flags);
- kref_put(&io_req->refcount, bnx2fc_cmd_release);
- spin_unlock_bh(&tgt->tgt_lock);
-
- if (!logo_issued) {
- BNX2FC_IO_DBG(io_req, "Expl logo - tgt flags = 0x%lx\n",
- tgt->flags);
- mutex_lock(&lport->disc.disc_mutex);
- lport->tt.rport_logoff(rdata);
- mutex_unlock(&lport->disc.disc_mutex);
- do {
- msleep(BNX2FC_RELOGIN_WAIT_TIME);
- /*
- * If session not recovered, let SCSI-ml
- * escalate error recovery.
- */
- if (wait_cnt++ > BNX2FC_RELOGIN_WAIT_CNT)
- return FAILED;
- } while (!test_bit(BNX2FC_FLAG_SESSION_READY,
- &tgt->flags));
- }
- return SUCCESS;
- }
- if (rc == FAILED) {
- kref_put(&io_req->refcount, bnx2fc_cmd_release);
- spin_unlock_bh(&tgt->tgt_lock);
- return rc;
+ goto done;
}
spin_unlock_bh(&tgt->tgt_lock);
/* Let the scsi-ml try to recover this command */
printk(KERN_ERR PFX "abort failed, xid = 0x%x\n",
io_req->xid);
- rc = FAILED;
+ rc = bnx2fc_expl_logo(lport, io_req);
+ goto out;
} else {
/*
* We come here even when there was a race condition
bnx2fc_scsi_done(io_req, DID_ABORT);
kref_put(&io_req->refcount, bnx2fc_cmd_release);
}
-
+done:
/* release the reference taken in eh_abort */
kref_put(&io_req->refcount, bnx2fc_cmd_release);
+out:
spin_unlock_bh(&tgt->tgt_lock);
return rc;
}
BUG_ON(rc);
}
+ list_for_each_safe(list, tmp, &tgt->active_tm_queue) {
+ i++;
+ io_req = (struct bnx2fc_cmd *)list;
+ list_del_init(&io_req->link);
+ io_req->on_tmf_queue = 0;
+ BNX2FC_IO_DBG(io_req, "tm_queue cleanup\n");
+ if (io_req->wait_for_comp)
+ complete(&io_req->tm_done);
+ }
+
list_for_each_safe(list, tmp, &tgt->els_queue) {
i++;
io_req = (struct bnx2fc_cmd *)list;
BNX2FC_IO_DBG(io_req, "retire_queue flush\n");
- if (cancel_delayed_work(&io_req->timeout_work))
+ if (cancel_delayed_work(&io_req->timeout_work)) {
+ if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
+ &io_req->req_flags)) {
+ /* Handle eh_abort timeout */
+ BNX2FC_IO_DBG(io_req, "eh_abort for IO "
+ "in retire_q\n");
+ if (io_req->wait_for_comp)
+ complete(&io_req->tm_done);
+ }
kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ }
clear_bit(BNX2FC_FLAG_ISSUE_RRQ, &io_req->req_flags);
}
obj-$(CONFIG_FCOE) += fcoe.o
obj-$(CONFIG_LIBFCOE) += libfcoe.o
-libfcoe-objs := fcoe_ctlr.o fcoe_transport.o
+libfcoe-objs := fcoe_ctlr.o fcoe_transport.o fcoe_sysfs.o
#include <scsi/fc/fc_encaps.h>
#include <scsi/fc/fc_fip.h>
+#include <scsi/fc/fc_fcoe.h>
#include <scsi/libfc.h>
#include <scsi/fc_frame.h>
static int fcoe_vport_disable(struct fc_vport *, bool disable);
static void fcoe_set_vport_symbolic_name(struct fc_vport *);
static void fcoe_set_port_id(struct fc_lport *, u32, struct fc_frame *);
+static void fcoe_ctlr_get_lesb(struct fcoe_ctlr_device *);
+static void fcoe_fcf_get_vlan_id(struct fcoe_fcf_device *);
+
+static struct fcoe_sysfs_function_template fcoe_sysfs_templ = {
+ .get_fcoe_ctlr_mode = fcoe_ctlr_get_fip_mode,
+ .get_fcoe_ctlr_link_fail = fcoe_ctlr_get_lesb,
+ .get_fcoe_ctlr_vlink_fail = fcoe_ctlr_get_lesb,
+ .get_fcoe_ctlr_miss_fka = fcoe_ctlr_get_lesb,
+ .get_fcoe_ctlr_symb_err = fcoe_ctlr_get_lesb,
+ .get_fcoe_ctlr_err_block = fcoe_ctlr_get_lesb,
+ .get_fcoe_ctlr_fcs_error = fcoe_ctlr_get_lesb,
+
+ .get_fcoe_fcf_selected = fcoe_fcf_get_selected,
+ .get_fcoe_fcf_vlan_id = fcoe_fcf_get_vlan_id,
+};
static struct libfc_function_template fcoe_libfc_fcn_templ = {
.frame_send = fcoe_xmit,
static int fcoe_interface_setup(struct fcoe_interface *fcoe,
struct net_device *netdev)
{
- struct fcoe_ctlr *fip = &fcoe->ctlr;
+ struct fcoe_ctlr *fip = fcoe_to_ctlr(fcoe);
struct netdev_hw_addr *ha;
struct net_device *real_dev;
u8 flogi_maddr[ETH_ALEN];
static struct fcoe_interface *fcoe_interface_create(struct net_device *netdev,
enum fip_state fip_mode)
{
+ struct fcoe_ctlr_device *ctlr_dev;
+ struct fcoe_ctlr *ctlr;
struct fcoe_interface *fcoe;
+ int size;
int err;
if (!try_module_get(THIS_MODULE)) {
goto out;
}
- fcoe = kzalloc(sizeof(*fcoe), GFP_KERNEL);
- if (!fcoe) {
- FCOE_NETDEV_DBG(netdev, "Could not allocate fcoe structure\n");
+ size = sizeof(struct fcoe_ctlr) + sizeof(struct fcoe_interface);
+ ctlr_dev = fcoe_ctlr_device_add(&netdev->dev, &fcoe_sysfs_templ,
+ size);
+ if (!ctlr_dev) {
+ FCOE_DBG("Failed to add fcoe_ctlr_device\n");
fcoe = ERR_PTR(-ENOMEM);
goto out_putmod;
}
+ ctlr = fcoe_ctlr_device_priv(ctlr_dev);
+ fcoe = fcoe_ctlr_priv(ctlr);
+
dev_hold(netdev);
/*
* Initialize FIP.
*/
- fcoe_ctlr_init(&fcoe->ctlr, fip_mode);
- fcoe->ctlr.send = fcoe_fip_send;
- fcoe->ctlr.update_mac = fcoe_update_src_mac;
- fcoe->ctlr.get_src_addr = fcoe_get_src_mac;
+ fcoe_ctlr_init(ctlr, fip_mode);
+ ctlr->send = fcoe_fip_send;
+ ctlr->update_mac = fcoe_update_src_mac;
+ ctlr->get_src_addr = fcoe_get_src_mac;
err = fcoe_interface_setup(fcoe, netdev);
if (err) {
- fcoe_ctlr_destroy(&fcoe->ctlr);
- kfree(fcoe);
+ fcoe_ctlr_destroy(ctlr);
+ fcoe_ctlr_device_delete(ctlr_dev);
dev_put(netdev);
fcoe = ERR_PTR(err);
goto out_putmod;
static void fcoe_interface_remove(struct fcoe_interface *fcoe)
{
struct net_device *netdev = fcoe->netdev;
- struct fcoe_ctlr *fip = &fcoe->ctlr;
+ struct fcoe_ctlr *fip = fcoe_to_ctlr(fcoe);
u8 flogi_maddr[ETH_ALEN];
const struct net_device_ops *ops;
static void fcoe_interface_cleanup(struct fcoe_interface *fcoe)
{
struct net_device *netdev = fcoe->netdev;
- struct fcoe_ctlr *fip = &fcoe->ctlr;
+ struct fcoe_ctlr *fip = fcoe_to_ctlr(fcoe);
+ struct fcoe_ctlr_device *ctlr_dev = fcoe_ctlr_to_ctlr_dev(fip);
rtnl_lock();
if (!fcoe->removed)
/* Release the self-reference taken during fcoe_interface_create() */
/* tear-down the FCoE controller */
fcoe_ctlr_destroy(fip);
- scsi_host_put(fcoe->ctlr.lp->host);
- kfree(fcoe);
+ scsi_host_put(fip->lp->host);
+ fcoe_ctlr_device_delete(ctlr_dev);
dev_put(netdev);
module_put(THIS_MODULE);
}
struct net_device *orig_dev)
{
struct fcoe_interface *fcoe;
+ struct fcoe_ctlr *ctlr;
fcoe = container_of(ptype, struct fcoe_interface, fip_packet_type);
- fcoe_ctlr_recv(&fcoe->ctlr, skb);
+ ctlr = fcoe_to_ctlr(fcoe);
+ fcoe_ctlr_recv(ctlr, skb);
return 0;
}
u32 mfs;
u64 wwnn, wwpn;
struct fcoe_interface *fcoe;
+ struct fcoe_ctlr *ctlr;
struct fcoe_port *port;
/* Setup lport private data to point to fcoe softc */
port = lport_priv(lport);
fcoe = port->priv;
+ ctlr = fcoe_to_ctlr(fcoe);
/*
* Determine max frame size based on underlying device and optional
if (!lport->vport) {
if (fcoe_get_wwn(netdev, &wwnn, NETDEV_FCOE_WWNN))
- wwnn = fcoe_wwn_from_mac(fcoe->ctlr.ctl_src_addr, 1, 0);
+ wwnn = fcoe_wwn_from_mac(ctlr->ctl_src_addr, 1, 0);
fc_set_wwnn(lport, wwnn);
if (fcoe_get_wwn(netdev, &wwpn, NETDEV_FCOE_WWPN))
- wwpn = fcoe_wwn_from_mac(fcoe->ctlr.ctl_src_addr,
+ wwpn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
2, 0);
fc_set_wwpn(lport, wwpn);
}
static struct fc_lport *fcoe_if_create(struct fcoe_interface *fcoe,
struct device *parent, int npiv)
{
+ struct fcoe_ctlr *ctlr = fcoe_to_ctlr(fcoe);
struct net_device *netdev = fcoe->netdev;
struct fc_lport *lport, *n_port;
struct fcoe_port *port;
}
/* Initialize the library */
- rc = fcoe_libfc_config(lport, &fcoe->ctlr, &fcoe_libfc_fcn_templ, 1);
+ rc = fcoe_libfc_config(lport, ctlr, &fcoe_libfc_fcn_templ, 1);
if (rc) {
FCOE_NETDEV_DBG(netdev, "Could not configure libfc for the "
"interface\n");
{
struct fc_lport *lport;
struct fcoe_rcv_info *fr;
+ struct fcoe_ctlr *ctlr;
struct fcoe_interface *fcoe;
struct fc_frame_header *fh;
struct fcoe_percpu_s *fps;
unsigned int cpu;
fcoe = container_of(ptype, struct fcoe_interface, fcoe_packet_type);
- lport = fcoe->ctlr.lp;
+ ctlr = fcoe_to_ctlr(fcoe);
+ lport = ctlr->lp;
if (unlikely(!lport)) {
FCOE_NETDEV_DBG(netdev, "Cannot find hba structure");
goto err2;
eh = eth_hdr(skb);
- if (is_fip_mode(&fcoe->ctlr) &&
- compare_ether_addr(eh->h_source, fcoe->ctlr.dest_addr)) {
+ if (is_fip_mode(ctlr) &&
+ compare_ether_addr(eh->h_source, ctlr->dest_addr)) {
FCOE_NETDEV_DBG(netdev, "wrong source mac address:%pM\n",
eh->h_source);
goto err;
unsigned int elen; /* eth header, may include vlan */
struct fcoe_port *port = lport_priv(lport);
struct fcoe_interface *fcoe = port->priv;
+ struct fcoe_ctlr *ctlr = fcoe_to_ctlr(fcoe);
u8 sof, eof;
struct fcoe_hdr *hp;
}
if (unlikely(fh->fh_type == FC_TYPE_ELS) &&
- fcoe_ctlr_els_send(&fcoe->ctlr, lport, skb))
+ fcoe_ctlr_els_send(ctlr, lport, skb))
return 0;
sof = fr_sof(fp);
/* fill up mac and fcoe headers */
eh = eth_hdr(skb);
eh->h_proto = htons(ETH_P_FCOE);
- memcpy(eh->h_dest, fcoe->ctlr.dest_addr, ETH_ALEN);
- if (fcoe->ctlr.map_dest)
+ memcpy(eh->h_dest, ctlr->dest_addr, ETH_ALEN);
+ if (ctlr->map_dest)
memcpy(eh->h_dest + 3, fh->fh_d_id, 3);
- if (unlikely(fcoe->ctlr.flogi_oxid != FC_XID_UNKNOWN))
- memcpy(eh->h_source, fcoe->ctlr.ctl_src_addr, ETH_ALEN);
+ if (unlikely(ctlr->flogi_oxid != FC_XID_UNKNOWN))
+ memcpy(eh->h_source, ctlr->ctl_src_addr, ETH_ALEN);
else
memcpy(eh->h_source, port->data_src_addr, ETH_ALEN);
static inline int fcoe_filter_frames(struct fc_lport *lport,
struct fc_frame *fp)
{
+ struct fcoe_ctlr *ctlr;
struct fcoe_interface *fcoe;
struct fc_frame_header *fh;
struct sk_buff *skb = (struct sk_buff *)fp;
return 0;
fcoe = ((struct fcoe_port *)lport_priv(lport))->priv;
- if (is_fip_mode(&fcoe->ctlr) && fc_frame_payload_op(fp) == ELS_LOGO &&
+ ctlr = fcoe_to_ctlr(fcoe);
+ if (is_fip_mode(ctlr) && fc_frame_payload_op(fp) == ELS_LOGO &&
ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
FCOE_DBG("fcoe: dropping FCoE lport LOGO in fip mode\n");
return -EINVAL;
ulong event, void *ptr)
{
struct dcb_app_type *entry = ptr;
+ struct fcoe_ctlr *ctlr;
struct fcoe_interface *fcoe;
struct net_device *netdev;
struct fcoe_port *port;
if (!fcoe)
return NOTIFY_OK;
+ ctlr = fcoe_to_ctlr(fcoe);
+
if (entry->dcbx & DCB_CAP_DCBX_VER_CEE)
prio = ffs(entry->app.priority) - 1;
else
if (entry->app.protocol == ETH_P_FIP ||
entry->app.protocol == ETH_P_FCOE)
- fcoe->ctlr.priority = prio;
+ ctlr->priority = prio;
if (entry->app.protocol == ETH_P_FCOE) {
- port = lport_priv(fcoe->ctlr.lp);
+ port = lport_priv(ctlr->lp);
port->priority = prio;
}
{
struct fc_lport *lport = NULL;
struct net_device *netdev = ptr;
+ struct fcoe_ctlr *ctlr;
struct fcoe_interface *fcoe;
struct fcoe_port *port;
struct fcoe_dev_stats *stats;
list_for_each_entry(fcoe, &fcoe_hostlist, list) {
if (fcoe->netdev == netdev) {
- lport = fcoe->ctlr.lp;
+ ctlr = fcoe_to_ctlr(fcoe);
+ lport = ctlr->lp;
break;
}
}
break;
case NETDEV_UNREGISTER:
list_del(&fcoe->list);
- port = lport_priv(fcoe->ctlr.lp);
+ port = lport_priv(ctlr->lp);
queue_work(fcoe_wq, &port->destroy_work);
goto out;
break;
fcoe_link_speed_update(lport);
if (link_possible && !fcoe_link_ok(lport))
- fcoe_ctlr_link_up(&fcoe->ctlr);
- else if (fcoe_ctlr_link_down(&fcoe->ctlr)) {
+ fcoe_ctlr_link_up(ctlr);
+ else if (fcoe_ctlr_link_down(ctlr)) {
stats = per_cpu_ptr(lport->dev_stats, get_cpu());
stats->LinkFailureCount++;
put_cpu();
*/
static int fcoe_disable(struct net_device *netdev)
{
+ struct fcoe_ctlr *ctlr;
struct fcoe_interface *fcoe;
int rc = 0;
rtnl_unlock();
if (fcoe) {
- fcoe_ctlr_link_down(&fcoe->ctlr);
- fcoe_clean_pending_queue(fcoe->ctlr.lp);
+ ctlr = fcoe_to_ctlr(fcoe);
+ fcoe_ctlr_link_down(ctlr);
+ fcoe_clean_pending_queue(ctlr->lp);
} else
rc = -ENODEV;
*/
static int fcoe_enable(struct net_device *netdev)
{
+ struct fcoe_ctlr *ctlr;
struct fcoe_interface *fcoe;
int rc = 0;
fcoe = fcoe_hostlist_lookup_port(netdev);
rtnl_unlock();
- if (!fcoe)
+ if (!fcoe) {
rc = -ENODEV;
- else if (!fcoe_link_ok(fcoe->ctlr.lp))
- fcoe_ctlr_link_up(&fcoe->ctlr);
+ goto out;
+ }
+
+ ctlr = fcoe_to_ctlr(fcoe);
+
+ if (!fcoe_link_ok(ctlr->lp))
+ fcoe_ctlr_link_up(ctlr);
+out:
mutex_unlock(&fcoe_config_mutex);
return rc;
}
*/
static int fcoe_destroy(struct net_device *netdev)
{
+ struct fcoe_ctlr *ctlr;
struct fcoe_interface *fcoe;
struct fc_lport *lport;
struct fcoe_port *port;
rc = -ENODEV;
goto out_nodev;
}
- lport = fcoe->ctlr.lp;
+ ctlr = fcoe_to_ctlr(fcoe);
+ lport = ctlr->lp;
port = lport_priv(lport);
list_del(&fcoe->list);
queue_work(fcoe_wq, &port->destroy_work);
int dcbx;
u8 fup, up;
struct net_device *netdev = fcoe->realdev;
- struct fcoe_port *port = lport_priv(fcoe->ctlr.lp);
+ struct fcoe_ctlr *ctlr = fcoe_to_ctlr(fcoe);
+ struct fcoe_port *port = lport_priv(ctlr->lp);
struct dcb_app app = {
.priority = 0,
.protocol = ETH_P_FCOE
}
port->priority = ffs(up) ? ffs(up) - 1 : 0;
- fcoe->ctlr.priority = ffs(fup) ? ffs(fup) - 1 : port->priority;
+ ctlr->priority = ffs(fup) ? ffs(fup) - 1 : port->priority;
}
#endif
}
static int fcoe_create(struct net_device *netdev, enum fip_state fip_mode)
{
int rc = 0;
+ struct fcoe_ctlr_device *ctlr_dev;
+ struct fcoe_ctlr *ctlr;
struct fcoe_interface *fcoe;
struct fc_lport *lport;
goto out_nodev;
}
- lport = fcoe_if_create(fcoe, &netdev->dev, 0);
+ ctlr = fcoe_to_ctlr(fcoe);
+ ctlr_dev = fcoe_ctlr_to_ctlr_dev(ctlr);
+ lport = fcoe_if_create(fcoe, &ctlr_dev->dev, 0);
if (IS_ERR(lport)) {
printk(KERN_ERR "fcoe: Failed to create interface (%s)\n",
netdev->name);
}
/* Make this the "master" N_Port */
- fcoe->ctlr.lp = lport;
+ ctlr->lp = lport;
/* setup DCB priority attributes. */
fcoe_dcb_create(fcoe);
fc_fabric_login(lport);
if (!fcoe_link_ok(lport)) {
rtnl_unlock();
- fcoe_ctlr_link_up(&fcoe->ctlr);
+ fcoe_ctlr_link_up(ctlr);
mutex_unlock(&fcoe_config_mutex);
return rc;
}
struct fc_lport *lport = shost_priv(shost);
struct fcoe_port *port = lport_priv(lport);
struct fcoe_interface *fcoe = port->priv;
+ struct fcoe_ctlr *ctlr = fcoe_to_ctlr(fcoe);
- fcoe_ctlr_link_down(&fcoe->ctlr);
- fcoe_clean_pending_queue(fcoe->ctlr.lp);
- if (!fcoe_link_ok(fcoe->ctlr.lp))
- fcoe_ctlr_link_up(&fcoe->ctlr);
+ fcoe_ctlr_link_down(ctlr);
+ fcoe_clean_pending_queue(ctlr->lp);
+ if (!fcoe_link_ok(ctlr->lp))
+ fcoe_ctlr_link_up(ctlr);
return 0;
}
*/
static struct fc_lport *fcoe_hostlist_lookup(const struct net_device *netdev)
{
+ struct fcoe_ctlr *ctlr;
struct fcoe_interface *fcoe;
fcoe = fcoe_hostlist_lookup_port(netdev);
- return (fcoe) ? fcoe->ctlr.lp : NULL;
+ ctlr = fcoe_to_ctlr(fcoe);
+ return (fcoe) ? ctlr->lp : NULL;
}
/**
static void __exit fcoe_exit(void)
{
struct fcoe_interface *fcoe, *tmp;
+ struct fcoe_ctlr *ctlr;
struct fcoe_port *port;
unsigned int cpu;
rtnl_lock();
list_for_each_entry_safe(fcoe, tmp, &fcoe_hostlist, list) {
list_del(&fcoe->list);
- port = lport_priv(fcoe->ctlr.lp);
+ ctlr = fcoe_to_ctlr(fcoe);
+ port = lport_priv(ctlr->lp);
queue_work(fcoe_wq, &port->destroy_work);
}
rtnl_unlock();
{
struct fcoe_port *port = lport_priv(lport);
struct fcoe_interface *fcoe = port->priv;
- struct fcoe_ctlr *fip = &fcoe->ctlr;
+ struct fcoe_ctlr *fip = fcoe_to_ctlr(fcoe);
struct fc_frame_header *fh = fc_frame_header_get(fp);
switch (op) {
__fcoe_get_lesb(lport, fc_lesb, netdev);
}
+static void fcoe_ctlr_get_lesb(struct fcoe_ctlr_device *ctlr_dev)
+{
+ struct fcoe_ctlr *fip = fcoe_ctlr_device_priv(ctlr_dev);
+ struct net_device *netdev = fcoe_netdev(fip->lp);
+ struct fcoe_fc_els_lesb *fcoe_lesb;
+ struct fc_els_lesb fc_lesb;
+
+ __fcoe_get_lesb(fip->lp, &fc_lesb, netdev);
+ fcoe_lesb = (struct fcoe_fc_els_lesb *)(&fc_lesb);
+
+ ctlr_dev->lesb.lesb_link_fail =
+ ntohl(fcoe_lesb->lesb_link_fail);
+ ctlr_dev->lesb.lesb_vlink_fail =
+ ntohl(fcoe_lesb->lesb_vlink_fail);
+ ctlr_dev->lesb.lesb_miss_fka =
+ ntohl(fcoe_lesb->lesb_miss_fka);
+ ctlr_dev->lesb.lesb_symb_err =
+ ntohl(fcoe_lesb->lesb_symb_err);
+ ctlr_dev->lesb.lesb_err_block =
+ ntohl(fcoe_lesb->lesb_err_block);
+ ctlr_dev->lesb.lesb_fcs_error =
+ ntohl(fcoe_lesb->lesb_fcs_error);
+}
+
+static void fcoe_fcf_get_vlan_id(struct fcoe_fcf_device *fcf_dev)
+{
+ struct fcoe_ctlr_device *ctlr_dev =
+ fcoe_fcf_dev_to_ctlr_dev(fcf_dev);
+ struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(ctlr_dev);
+ struct fcoe_interface *fcoe = fcoe_ctlr_priv(ctlr);
+
+ fcf_dev->vlan_id = vlan_dev_vlan_id(fcoe->netdev);
+}
+
/**
* fcoe_set_port_id() - Callback from libfc when Port_ID is set.
* @lport: the local port
{
struct fcoe_port *port = lport_priv(lport);
struct fcoe_interface *fcoe = port->priv;
+ struct fcoe_ctlr *ctlr = fcoe_to_ctlr(fcoe);
if (fp && fc_frame_payload_op(fp) == ELS_FLOGI)
- fcoe_ctlr_recv_flogi(&fcoe->ctlr, lport, fp);
+ fcoe_ctlr_recv_flogi(ctlr, lport, fp);
}
* @netdev: The associated net device
* @fcoe_packet_type: FCoE packet type
* @fip_packet_type: FIP packet type
- * @ctlr: The FCoE controller (for FIP)
* @oem: The offload exchange manager for all local port
* instances associated with this port
* @removed: Indicates fcoe interface removed from net device
struct net_device *realdev;
struct packet_type fcoe_packet_type;
struct packet_type fip_packet_type;
- struct fcoe_ctlr ctlr;
struct fc_exch_mgr *oem;
u8 removed;
};
-#define fcoe_from_ctlr(fip) container_of(fip, struct fcoe_interface, ctlr)
+#define fcoe_to_ctlr(x) \
+ (struct fcoe_ctlr *)(((struct fcoe_ctlr *)(x)) - 1)
+
+#define fcoe_from_ctlr(x) \
+ ((struct fcoe_interface *)((x) + 1))
/**
* fcoe_netdev() - Return the net device associated with a local port
}
EXPORT_SYMBOL(fcoe_ctlr_init);
+static int fcoe_sysfs_fcf_add(struct fcoe_fcf *new)
+{
+ struct fcoe_ctlr *fip = new->fip;
+ struct fcoe_ctlr_device *ctlr_dev = fcoe_ctlr_to_ctlr_dev(fip);
+ struct fcoe_fcf_device temp, *fcf_dev;
+ int rc = 0;
+
+ LIBFCOE_FIP_DBG(fip, "New FCF fab %16.16llx mac %pM\n",
+ new->fabric_name, new->fcf_mac);
+
+ mutex_lock(&ctlr_dev->lock);
+
+ temp.fabric_name = new->fabric_name;
+ temp.switch_name = new->switch_name;
+ temp.fc_map = new->fc_map;
+ temp.vfid = new->vfid;
+ memcpy(temp.mac, new->fcf_mac, ETH_ALEN);
+ temp.priority = new->pri;
+ temp.fka_period = new->fka_period;
+ temp.selected = 0; /* default to unselected */
+
+ fcf_dev = fcoe_fcf_device_add(ctlr_dev, &temp);
+ if (unlikely(!fcf_dev)) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ /*
+ * The fcoe_sysfs layer can return a CONNECTED fcf that
+ * has a priv (fcf was never deleted) or a CONNECTED fcf
+ * that doesn't have a priv (fcf was deleted). However,
+ * libfcoe will always delete FCFs before trying to add
+ * them. This is ensured because both recv_adv and
+ * age_fcfs are protected by the the fcoe_ctlr's mutex.
+ * This means that we should never get a FCF with a
+ * non-NULL priv pointer.
+ */
+ BUG_ON(fcf_dev->priv);
+
+ fcf_dev->priv = new;
+ new->fcf_dev = fcf_dev;
+
+ list_add(&new->list, &fip->fcfs);
+ fip->fcf_count++;
+
+out:
+ mutex_unlock(&ctlr_dev->lock);
+ return rc;
+}
+
+static void fcoe_sysfs_fcf_del(struct fcoe_fcf *new)
+{
+ struct fcoe_ctlr *fip = new->fip;
+ struct fcoe_ctlr_device *ctlr_dev = fcoe_ctlr_to_ctlr_dev(fip);
+ struct fcoe_fcf_device *fcf_dev;
+
+ list_del(&new->list);
+ fip->fcf_count--;
+
+ mutex_lock(&ctlr_dev->lock);
+
+ fcf_dev = fcoe_fcf_to_fcf_dev(new);
+ WARN_ON(!fcf_dev);
+ new->fcf_dev = NULL;
+ fcoe_fcf_device_delete(fcf_dev);
+ kfree(new);
+
+ mutex_unlock(&ctlr_dev->lock);
+}
+
/**
* fcoe_ctlr_reset_fcfs() - Reset and free all FCFs for a controller
* @fip: The FCoE controller whose FCFs are to be reset
fip->sel_fcf = NULL;
list_for_each_entry_safe(fcf, next, &fip->fcfs, list) {
- list_del(&fcf->list);
- kfree(fcf);
+ fcoe_sysfs_fcf_del(fcf);
}
- fip->fcf_count = 0;
+ WARN_ON(fip->fcf_count);
+
fip->sel_time = 0;
}
unsigned long next_timer = jiffies + msecs_to_jiffies(FIP_VN_KA_PERIOD);
unsigned long deadline;
unsigned long sel_time = 0;
+ struct list_head del_list;
struct fcoe_dev_stats *stats;
+ INIT_LIST_HEAD(&del_list);
+
stats = per_cpu_ptr(fip->lp->dev_stats, get_cpu());
list_for_each_entry_safe(fcf, next, &fip->fcfs, list) {
if (time_after_eq(jiffies, deadline)) {
if (fip->sel_fcf == fcf)
fip->sel_fcf = NULL;
+ /*
+ * Move to delete list so we can call
+ * fcoe_sysfs_fcf_del (which can sleep)
+ * after the put_cpu().
+ */
list_del(&fcf->list);
- WARN_ON(!fip->fcf_count);
- fip->fcf_count--;
- kfree(fcf);
+ list_add(&fcf->list, &del_list);
stats->VLinkFailureCount++;
} else {
if (time_after(next_timer, deadline))
}
}
put_cpu();
+
+ list_for_each_entry_safe(fcf, next, &del_list, list) {
+ /* Removes fcf from current list */
+ fcoe_sysfs_fcf_del(fcf);
+ }
+
if (sel_time && !fip->sel_fcf && !fip->sel_time) {
sel_time += msecs_to_jiffies(FCOE_CTLR_START_DELAY);
fip->sel_time = sel_time;
{
struct fcoe_fcf *fcf;
struct fcoe_fcf new;
- struct fcoe_fcf *found;
unsigned long sol_tov = msecs_to_jiffies(FCOE_CTRL_SOL_TOV);
int first = 0;
int mtu_valid;
+ int found = 0;
+ int rc = 0;
if (fcoe_ctlr_parse_adv(fip, skb, &new))
return;
mutex_lock(&fip->ctlr_mutex);
first = list_empty(&fip->fcfs);
- found = NULL;
list_for_each_entry(fcf, &fip->fcfs, list) {
if (fcf->switch_name == new.switch_name &&
fcf->fabric_name == new.fabric_name &&
fcf->fc_map == new.fc_map &&
compare_ether_addr(fcf->fcf_mac, new.fcf_mac) == 0) {
- found = fcf;
+ found = 1;
break;
}
}
if (!fcf)
goto out;
- fip->fcf_count++;
memcpy(fcf, &new, sizeof(new));
- list_add(&fcf->list, &fip->fcfs);
+ fcf->fip = fip;
+ rc = fcoe_sysfs_fcf_add(fcf);
+ if (rc) {
+ printk(KERN_ERR "Failed to allocate sysfs instance "
+ "for FCF, fab %16.16llx mac %pM\n",
+ new.fabric_name, new.fcf_mac);
+ kfree(fcf);
+ goto out;
+ }
} else {
/*
* Update the FCF's keep-alive descriptor flags.
fcf->fka_period = new.fka_period;
memcpy(fcf->fcf_mac, new.fcf_mac, ETH_ALEN);
}
+
mtu_valid = fcoe_ctlr_mtu_valid(fcf);
fcf->time = jiffies;
if (!found)
time_before(fip->sel_time, fip->timer.expires))
mod_timer(&fip->timer, fip->sel_time);
}
+
out:
mutex_unlock(&fip->ctlr_mutex);
}
/**
* fcoe_libfc_config() - Sets up libfc related properties for local port
- * @lp: The local port to configure libfc for
- * @fip: The FCoE controller in use by the local port
- * @tt: The libfc function template
+ * @lport: The local port to configure libfc for
+ * @fip: The FCoE controller in use by the local port
+ * @tt: The libfc function template
* @init_fcp: If non-zero, the FCP portion of libfc should be initialized
*
* Returns : 0 for success
return 0;
}
EXPORT_SYMBOL_GPL(fcoe_libfc_config);
+
+void fcoe_fcf_get_selected(struct fcoe_fcf_device *fcf_dev)
+{
+ struct fcoe_ctlr_device *ctlr_dev = fcoe_fcf_dev_to_ctlr_dev(fcf_dev);
+ struct fcoe_ctlr *fip = fcoe_ctlr_device_priv(ctlr_dev);
+ struct fcoe_fcf *fcf;
+
+ mutex_lock(&fip->ctlr_mutex);
+ mutex_lock(&ctlr_dev->lock);
+
+ fcf = fcoe_fcf_device_priv(fcf_dev);
+ if (fcf)
+ fcf_dev->selected = (fcf == fip->sel_fcf) ? 1 : 0;
+ else
+ fcf_dev->selected = 0;
+
+ mutex_unlock(&ctlr_dev->lock);
+ mutex_unlock(&fip->ctlr_mutex);
+}
+EXPORT_SYMBOL(fcoe_fcf_get_selected);
+
+void fcoe_ctlr_get_fip_mode(struct fcoe_ctlr_device *ctlr_dev)
+{
+ struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(ctlr_dev);
+
+ mutex_lock(&ctlr->ctlr_mutex);
+ switch (ctlr->mode) {
+ case FIP_MODE_FABRIC:
+ ctlr_dev->mode = FIP_CONN_TYPE_FABRIC;
+ break;
+ case FIP_MODE_VN2VN:
+ ctlr_dev->mode = FIP_CONN_TYPE_VN2VN;
+ break;
+ default:
+ ctlr_dev->mode = FIP_CONN_TYPE_UNKNOWN;
+ break;
+ }
+ mutex_unlock(&ctlr->ctlr_mutex);
+}
+EXPORT_SYMBOL(fcoe_ctlr_get_fip_mode);
--- /dev/null
+/*
+ * Copyright(c) 2011 - 2012 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Maintained at www.Open-FCoE.org
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/etherdevice.h>
+
+#include <scsi/fcoe_sysfs.h>
+
+static atomic_t ctlr_num;
+static atomic_t fcf_num;
+
+/*
+ * fcoe_fcf_dev_loss_tmo: the default number of seconds that fcoe sysfs
+ * should insulate the loss of a fcf.
+ */
+static unsigned int fcoe_fcf_dev_loss_tmo = 1800; /* seconds */
+
+module_param_named(fcf_dev_loss_tmo, fcoe_fcf_dev_loss_tmo,
+ uint, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(fcf_dev_loss_tmo,
+ "Maximum number of seconds that libfcoe should"
+ " insulate the loss of a fcf. Once this value is"
+ " exceeded, the fcf is removed.");
+
+/*
+ * These are used by the fcoe_*_show_function routines, they
+ * are intentionally placed in the .c file as they're not intended
+ * for use throughout the code.
+ */
+#define fcoe_ctlr_id(x) \
+ ((x)->id)
+#define fcoe_ctlr_work_q_name(x) \
+ ((x)->work_q_name)
+#define fcoe_ctlr_work_q(x) \
+ ((x)->work_q)
+#define fcoe_ctlr_devloss_work_q_name(x) \
+ ((x)->devloss_work_q_name)
+#define fcoe_ctlr_devloss_work_q(x) \
+ ((x)->devloss_work_q)
+#define fcoe_ctlr_mode(x) \
+ ((x)->mode)
+#define fcoe_ctlr_fcf_dev_loss_tmo(x) \
+ ((x)->fcf_dev_loss_tmo)
+#define fcoe_ctlr_link_fail(x) \
+ ((x)->lesb.lesb_link_fail)
+#define fcoe_ctlr_vlink_fail(x) \
+ ((x)->lesb.lesb_vlink_fail)
+#define fcoe_ctlr_miss_fka(x) \
+ ((x)->lesb.lesb_miss_fka)
+#define fcoe_ctlr_symb_err(x) \
+ ((x)->lesb.lesb_symb_err)
+#define fcoe_ctlr_err_block(x) \
+ ((x)->lesb.lesb_err_block)
+#define fcoe_ctlr_fcs_error(x) \
+ ((x)->lesb.lesb_fcs_error)
+#define fcoe_fcf_state(x) \
+ ((x)->state)
+#define fcoe_fcf_fabric_name(x) \
+ ((x)->fabric_name)
+#define fcoe_fcf_switch_name(x) \
+ ((x)->switch_name)
+#define fcoe_fcf_fc_map(x) \
+ ((x)->fc_map)
+#define fcoe_fcf_vfid(x) \
+ ((x)->vfid)
+#define fcoe_fcf_mac(x) \
+ ((x)->mac)
+#define fcoe_fcf_priority(x) \
+ ((x)->priority)
+#define fcoe_fcf_fka_period(x) \
+ ((x)->fka_period)
+#define fcoe_fcf_dev_loss_tmo(x) \
+ ((x)->dev_loss_tmo)
+#define fcoe_fcf_selected(x) \
+ ((x)->selected)
+#define fcoe_fcf_vlan_id(x) \
+ ((x)->vlan_id)
+
+/*
+ * dev_loss_tmo attribute
+ */
+static int fcoe_str_to_dev_loss(const char *buf, unsigned long *val)
+{
+ int ret;
+
+ ret = kstrtoul(buf, 0, val);
+ if (ret || *val < 0)
+ return -EINVAL;
+ /*
+ * Check for overflow; dev_loss_tmo is u32
+ */
+ if (*val > UINT_MAX)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int fcoe_fcf_set_dev_loss_tmo(struct fcoe_fcf_device *fcf,
+ unsigned long val)
+{
+ if ((fcf->state == FCOE_FCF_STATE_UNKNOWN) ||
+ (fcf->state == FCOE_FCF_STATE_DISCONNECTED) ||
+ (fcf->state == FCOE_FCF_STATE_DELETED))
+ return -EBUSY;
+ /*
+ * Check for overflow; dev_loss_tmo is u32
+ */
+ if (val > UINT_MAX)
+ return -EINVAL;
+
+ fcoe_fcf_dev_loss_tmo(fcf) = val;
+ return 0;
+}
+
+#define FCOE_DEVICE_ATTR(_prefix, _name, _mode, _show, _store) \
+struct device_attribute device_attr_fcoe_##_prefix##_##_name = \
+ __ATTR(_name, _mode, _show, _store)
+
+#define fcoe_ctlr_show_function(field, format_string, sz, cast) \
+static ssize_t show_fcoe_ctlr_device_##field(struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
+{ \
+ struct fcoe_ctlr_device *ctlr = dev_to_ctlr(dev); \
+ if (ctlr->f->get_fcoe_ctlr_##field) \
+ ctlr->f->get_fcoe_ctlr_##field(ctlr); \
+ return snprintf(buf, sz, format_string, \
+ cast fcoe_ctlr_##field(ctlr)); \
+}
+
+#define fcoe_fcf_show_function(field, format_string, sz, cast) \
+static ssize_t show_fcoe_fcf_device_##field(struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
+{ \
+ struct fcoe_fcf_device *fcf = dev_to_fcf(dev); \
+ struct fcoe_ctlr_device *ctlr = fcoe_fcf_dev_to_ctlr_dev(fcf); \
+ if (ctlr->f->get_fcoe_fcf_##field) \
+ ctlr->f->get_fcoe_fcf_##field(fcf); \
+ return snprintf(buf, sz, format_string, \
+ cast fcoe_fcf_##field(fcf)); \
+}
+
+#define fcoe_ctlr_private_show_function(field, format_string, sz, cast) \
+static ssize_t show_fcoe_ctlr_device_##field(struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
+{ \
+ struct fcoe_ctlr_device *ctlr = dev_to_ctlr(dev); \
+ return snprintf(buf, sz, format_string, cast fcoe_ctlr_##field(ctlr)); \
+}
+
+#define fcoe_fcf_private_show_function(field, format_string, sz, cast) \
+static ssize_t show_fcoe_fcf_device_##field(struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
+{ \
+ struct fcoe_fcf_device *fcf = dev_to_fcf(dev); \
+ return snprintf(buf, sz, format_string, cast fcoe_fcf_##field(fcf)); \
+}
+
+#define fcoe_ctlr_private_rd_attr(field, format_string, sz) \
+ fcoe_ctlr_private_show_function(field, format_string, sz, ) \
+ static FCOE_DEVICE_ATTR(ctlr, field, S_IRUGO, \
+ show_fcoe_ctlr_device_##field, NULL)
+
+#define fcoe_ctlr_rd_attr(field, format_string, sz) \
+ fcoe_ctlr_show_function(field, format_string, sz, ) \
+ static FCOE_DEVICE_ATTR(ctlr, field, S_IRUGO, \
+ show_fcoe_ctlr_device_##field, NULL)
+
+#define fcoe_fcf_rd_attr(field, format_string, sz) \
+ fcoe_fcf_show_function(field, format_string, sz, ) \
+ static FCOE_DEVICE_ATTR(fcf, field, S_IRUGO, \
+ show_fcoe_fcf_device_##field, NULL)
+
+#define fcoe_fcf_private_rd_attr(field, format_string, sz) \
+ fcoe_fcf_private_show_function(field, format_string, sz, ) \
+ static FCOE_DEVICE_ATTR(fcf, field, S_IRUGO, \
+ show_fcoe_fcf_device_##field, NULL)
+
+#define fcoe_ctlr_private_rd_attr_cast(field, format_string, sz, cast) \
+ fcoe_ctlr_private_show_function(field, format_string, sz, (cast)) \
+ static FCOE_DEVICE_ATTR(ctlr, field, S_IRUGO, \
+ show_fcoe_ctlr_device_##field, NULL)
+
+#define fcoe_fcf_private_rd_attr_cast(field, format_string, sz, cast) \
+ fcoe_fcf_private_show_function(field, format_string, sz, (cast)) \
+ static FCOE_DEVICE_ATTR(fcf, field, S_IRUGO, \
+ show_fcoe_fcf_device_##field, NULL)
+
+#define fcoe_enum_name_search(title, table_type, table) \
+static const char *get_fcoe_##title##_name(enum table_type table_key) \
+{ \
+ int i; \
+ char *name = NULL; \
+ \
+ for (i = 0; i < ARRAY_SIZE(table); i++) { \
+ if (table[i].value == table_key) { \
+ name = table[i].name; \
+ break; \
+ } \
+ } \
+ return name; \
+}
+
+static struct {
+ enum fcf_state value;
+ char *name;
+} fcf_state_names[] = {
+ { FCOE_FCF_STATE_UNKNOWN, "Unknown" },
+ { FCOE_FCF_STATE_DISCONNECTED, "Disconnected" },
+ { FCOE_FCF_STATE_CONNECTED, "Connected" },
+};
+fcoe_enum_name_search(fcf_state, fcf_state, fcf_state_names)
+#define FCOE_FCF_STATE_MAX_NAMELEN 50
+
+static ssize_t show_fcf_state(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct fcoe_fcf_device *fcf = dev_to_fcf(dev);
+ const char *name;
+ name = get_fcoe_fcf_state_name(fcf->state);
+ if (!name)
+ return -EINVAL;
+ return snprintf(buf, FCOE_FCF_STATE_MAX_NAMELEN, "%s\n", name);
+}
+static FCOE_DEVICE_ATTR(fcf, state, S_IRUGO, show_fcf_state, NULL);
+
+static struct {
+ enum fip_conn_type value;
+ char *name;
+} fip_conn_type_names[] = {
+ { FIP_CONN_TYPE_UNKNOWN, "Unknown" },
+ { FIP_CONN_TYPE_FABRIC, "Fabric" },
+ { FIP_CONN_TYPE_VN2VN, "VN2VN" },
+};
+fcoe_enum_name_search(ctlr_mode, fip_conn_type, fip_conn_type_names)
+#define FCOE_CTLR_MODE_MAX_NAMELEN 50
+
+static ssize_t show_ctlr_mode(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct fcoe_ctlr_device *ctlr = dev_to_ctlr(dev);
+ const char *name;
+
+ if (ctlr->f->get_fcoe_ctlr_mode)
+ ctlr->f->get_fcoe_ctlr_mode(ctlr);
+
+ name = get_fcoe_ctlr_mode_name(ctlr->mode);
+ if (!name)
+ return -EINVAL;
+ return snprintf(buf, FCOE_CTLR_MODE_MAX_NAMELEN,
+ "%s\n", name);
+}
+static FCOE_DEVICE_ATTR(ctlr, mode, S_IRUGO,
+ show_ctlr_mode, NULL);
+
+static ssize_t
+store_private_fcoe_ctlr_fcf_dev_loss_tmo(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct fcoe_ctlr_device *ctlr = dev_to_ctlr(dev);
+ struct fcoe_fcf_device *fcf;
+ unsigned long val;
+ int rc;
+
+ rc = fcoe_str_to_dev_loss(buf, &val);
+ if (rc)
+ return rc;
+
+ fcoe_ctlr_fcf_dev_loss_tmo(ctlr) = val;
+ mutex_lock(&ctlr->lock);
+ list_for_each_entry(fcf, &ctlr->fcfs, peers)
+ fcoe_fcf_set_dev_loss_tmo(fcf, val);
+ mutex_unlock(&ctlr->lock);
+ return count;
+}
+fcoe_ctlr_private_show_function(fcf_dev_loss_tmo, "%d\n", 20, );
+static FCOE_DEVICE_ATTR(ctlr, fcf_dev_loss_tmo, S_IRUGO | S_IWUSR,
+ show_fcoe_ctlr_device_fcf_dev_loss_tmo,
+ store_private_fcoe_ctlr_fcf_dev_loss_tmo);
+
+/* Link Error Status Block (LESB) */
+fcoe_ctlr_rd_attr(link_fail, "%u\n", 20);
+fcoe_ctlr_rd_attr(vlink_fail, "%u\n", 20);
+fcoe_ctlr_rd_attr(miss_fka, "%u\n", 20);
+fcoe_ctlr_rd_attr(symb_err, "%u\n", 20);
+fcoe_ctlr_rd_attr(err_block, "%u\n", 20);
+fcoe_ctlr_rd_attr(fcs_error, "%u\n", 20);
+
+fcoe_fcf_private_rd_attr_cast(fabric_name, "0x%llx\n", 20, unsigned long long);
+fcoe_fcf_private_rd_attr_cast(switch_name, "0x%llx\n", 20, unsigned long long);
+fcoe_fcf_private_rd_attr(priority, "%u\n", 20);
+fcoe_fcf_private_rd_attr(fc_map, "0x%x\n", 20);
+fcoe_fcf_private_rd_attr(vfid, "%u\n", 20);
+fcoe_fcf_private_rd_attr(mac, "%pM\n", 20);
+fcoe_fcf_private_rd_attr(fka_period, "%u\n", 20);
+fcoe_fcf_rd_attr(selected, "%u\n", 20);
+fcoe_fcf_rd_attr(vlan_id, "%u\n", 20);
+
+fcoe_fcf_private_show_function(dev_loss_tmo, "%d\n", 20, )
+static ssize_t
+store_fcoe_fcf_dev_loss_tmo(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct fcoe_fcf_device *fcf = dev_to_fcf(dev);
+ unsigned long val;
+ int rc;
+
+ rc = fcoe_str_to_dev_loss(buf, &val);
+ if (rc)
+ return rc;
+
+ rc = fcoe_fcf_set_dev_loss_tmo(fcf, val);
+ if (rc)
+ return rc;
+ return count;
+}
+static FCOE_DEVICE_ATTR(fcf, dev_loss_tmo, S_IRUGO | S_IWUSR,
+ show_fcoe_fcf_device_dev_loss_tmo,
+ store_fcoe_fcf_dev_loss_tmo);
+
+static struct attribute *fcoe_ctlr_lesb_attrs[] = {
+ &device_attr_fcoe_ctlr_link_fail.attr,
+ &device_attr_fcoe_ctlr_vlink_fail.attr,
+ &device_attr_fcoe_ctlr_miss_fka.attr,
+ &device_attr_fcoe_ctlr_symb_err.attr,
+ &device_attr_fcoe_ctlr_err_block.attr,
+ &device_attr_fcoe_ctlr_fcs_error.attr,
+ NULL,
+};
+
+static struct attribute_group fcoe_ctlr_lesb_attr_group = {
+ .name = "lesb",
+ .attrs = fcoe_ctlr_lesb_attrs,
+};
+
+static struct attribute *fcoe_ctlr_attrs[] = {
+ &device_attr_fcoe_ctlr_fcf_dev_loss_tmo.attr,
+ &device_attr_fcoe_ctlr_mode.attr,
+ NULL,
+};
+
+static struct attribute_group fcoe_ctlr_attr_group = {
+ .attrs = fcoe_ctlr_attrs,
+};
+
+static const struct attribute_group *fcoe_ctlr_attr_groups[] = {
+ &fcoe_ctlr_attr_group,
+ &fcoe_ctlr_lesb_attr_group,
+ NULL,
+};
+
+static struct attribute *fcoe_fcf_attrs[] = {
+ &device_attr_fcoe_fcf_fabric_name.attr,
+ &device_attr_fcoe_fcf_switch_name.attr,
+ &device_attr_fcoe_fcf_dev_loss_tmo.attr,
+ &device_attr_fcoe_fcf_fc_map.attr,
+ &device_attr_fcoe_fcf_vfid.attr,
+ &device_attr_fcoe_fcf_mac.attr,
+ &device_attr_fcoe_fcf_priority.attr,
+ &device_attr_fcoe_fcf_fka_period.attr,
+ &device_attr_fcoe_fcf_state.attr,
+ &device_attr_fcoe_fcf_selected.attr,
+ &device_attr_fcoe_fcf_vlan_id.attr,
+ NULL
+};
+
+static struct attribute_group fcoe_fcf_attr_group = {
+ .attrs = fcoe_fcf_attrs,
+};
+
+static const struct attribute_group *fcoe_fcf_attr_groups[] = {
+ &fcoe_fcf_attr_group,
+ NULL,
+};
+
+struct bus_type fcoe_bus_type;
+
+static int fcoe_bus_match(struct device *dev,
+ struct device_driver *drv)
+{
+ if (dev->bus == &fcoe_bus_type)
+ return 1;
+ return 0;
+}
+
+/**
+ * fcoe_ctlr_device_release() - Release the FIP ctlr memory
+ * @dev: Pointer to the FIP ctlr's embedded device
+ *
+ * Called when the last FIP ctlr reference is released.
+ */
+static void fcoe_ctlr_device_release(struct device *dev)
+{
+ struct fcoe_ctlr_device *ctlr = dev_to_ctlr(dev);
+ kfree(ctlr);
+}
+
+/**
+ * fcoe_fcf_device_release() - Release the FIP fcf memory
+ * @dev: Pointer to the fcf's embedded device
+ *
+ * Called when the last FIP fcf reference is released.
+ */
+static void fcoe_fcf_device_release(struct device *dev)
+{
+ struct fcoe_fcf_device *fcf = dev_to_fcf(dev);
+ kfree(fcf);
+}
+
+struct device_type fcoe_ctlr_device_type = {
+ .name = "fcoe_ctlr",
+ .groups = fcoe_ctlr_attr_groups,
+ .release = fcoe_ctlr_device_release,
+};
+
+struct device_type fcoe_fcf_device_type = {
+ .name = "fcoe_fcf",
+ .groups = fcoe_fcf_attr_groups,
+ .release = fcoe_fcf_device_release,
+};
+
+struct bus_type fcoe_bus_type = {
+ .name = "fcoe",
+ .match = &fcoe_bus_match,
+};
+
+/**
+ * fcoe_ctlr_device_flush_work() - Flush a FIP ctlr's workqueue
+ * @ctlr: Pointer to the FIP ctlr whose workqueue is to be flushed
+ */
+void fcoe_ctlr_device_flush_work(struct fcoe_ctlr_device *ctlr)
+{
+ if (!fcoe_ctlr_work_q(ctlr)) {
+ printk(KERN_ERR
+ "ERROR: FIP Ctlr '%d' attempted to flush work, "
+ "when no workqueue created.\n", ctlr->id);
+ dump_stack();
+ return;
+ }
+
+ flush_workqueue(fcoe_ctlr_work_q(ctlr));
+}
+
+/**
+ * fcoe_ctlr_device_queue_work() - Schedule work for a FIP ctlr's workqueue
+ * @ctlr: Pointer to the FIP ctlr who owns the devloss workqueue
+ * @work: Work to queue for execution
+ *
+ * Return value:
+ * 1 on success / 0 already queued / < 0 for error
+ */
+int fcoe_ctlr_device_queue_work(struct fcoe_ctlr_device *ctlr,
+ struct work_struct *work)
+{
+ if (unlikely(!fcoe_ctlr_work_q(ctlr))) {
+ printk(KERN_ERR
+ "ERROR: FIP Ctlr '%d' attempted to queue work, "
+ "when no workqueue created.\n", ctlr->id);
+ dump_stack();
+
+ return -EINVAL;
+ }
+
+ return queue_work(fcoe_ctlr_work_q(ctlr), work);
+}
+
+/**
+ * fcoe_ctlr_device_flush_devloss() - Flush a FIP ctlr's devloss workqueue
+ * @ctlr: Pointer to FIP ctlr whose workqueue is to be flushed
+ */
+void fcoe_ctlr_device_flush_devloss(struct fcoe_ctlr_device *ctlr)
+{
+ if (!fcoe_ctlr_devloss_work_q(ctlr)) {
+ printk(KERN_ERR
+ "ERROR: FIP Ctlr '%d' attempted to flush work, "
+ "when no workqueue created.\n", ctlr->id);
+ dump_stack();
+ return;
+ }
+
+ flush_workqueue(fcoe_ctlr_devloss_work_q(ctlr));
+}
+
+/**
+ * fcoe_ctlr_device_queue_devloss_work() - Schedule work for a FIP ctlr's devloss workqueue
+ * @ctlr: Pointer to the FIP ctlr who owns the devloss workqueue
+ * @work: Work to queue for execution
+ * @delay: jiffies to delay the work queuing
+ *
+ * Return value:
+ * 1 on success / 0 already queued / < 0 for error
+ */
+int fcoe_ctlr_device_queue_devloss_work(struct fcoe_ctlr_device *ctlr,
+ struct delayed_work *work,
+ unsigned long delay)
+{
+ if (unlikely(!fcoe_ctlr_devloss_work_q(ctlr))) {
+ printk(KERN_ERR
+ "ERROR: FIP Ctlr '%d' attempted to queue work, "
+ "when no workqueue created.\n", ctlr->id);
+ dump_stack();
+
+ return -EINVAL;
+ }
+
+ return queue_delayed_work(fcoe_ctlr_devloss_work_q(ctlr), work, delay);
+}
+
+static int fcoe_fcf_device_match(struct fcoe_fcf_device *new,
+ struct fcoe_fcf_device *old)
+{
+ if (new->switch_name == old->switch_name &&
+ new->fabric_name == old->fabric_name &&
+ new->fc_map == old->fc_map &&
+ compare_ether_addr(new->mac, old->mac) == 0)
+ return 1;
+ return 0;
+}
+
+/**
+ * fcoe_ctlr_device_add() - Add a FIP ctlr to sysfs
+ * @parent: The parent device to which the fcoe_ctlr instance
+ * should be attached
+ * @f: The LLD's FCoE sysfs function template pointer
+ * @priv_size: Size to be allocated with the fcoe_ctlr_device for the LLD
+ *
+ * This routine allocates a FIP ctlr object with some additional memory
+ * for the LLD. The FIP ctlr is initialized, added to sysfs and then
+ * attributes are added to it.
+ */
+struct fcoe_ctlr_device *fcoe_ctlr_device_add(struct device *parent,
+ struct fcoe_sysfs_function_template *f,
+ int priv_size)
+{
+ struct fcoe_ctlr_device *ctlr;
+ int error = 0;
+
+ ctlr = kzalloc(sizeof(struct fcoe_ctlr_device) + priv_size,
+ GFP_KERNEL);
+ if (!ctlr)
+ goto out;
+
+ ctlr->id = atomic_inc_return(&ctlr_num) - 1;
+ ctlr->f = f;
+ INIT_LIST_HEAD(&ctlr->fcfs);
+ mutex_init(&ctlr->lock);
+ ctlr->dev.parent = parent;
+ ctlr->dev.bus = &fcoe_bus_type;
+ ctlr->dev.type = &fcoe_ctlr_device_type;
+
+ ctlr->fcf_dev_loss_tmo = fcoe_fcf_dev_loss_tmo;
+
+ snprintf(ctlr->work_q_name, sizeof(ctlr->work_q_name),
+ "ctlr_wq_%d", ctlr->id);
+ ctlr->work_q = create_singlethread_workqueue(
+ ctlr->work_q_name);
+ if (!ctlr->work_q)
+ goto out_del;
+
+ snprintf(ctlr->devloss_work_q_name,
+ sizeof(ctlr->devloss_work_q_name),
+ "ctlr_dl_wq_%d", ctlr->id);
+ ctlr->devloss_work_q = create_singlethread_workqueue(
+ ctlr->devloss_work_q_name);
+ if (!ctlr->devloss_work_q)
+ goto out_del_q;
+
+ dev_set_name(&ctlr->dev, "ctlr_%d", ctlr->id);
+ error = device_register(&ctlr->dev);
+ if (error)
+ goto out_del_q2;
+
+ return ctlr;
+
+out_del_q2:
+ destroy_workqueue(ctlr->devloss_work_q);
+ ctlr->devloss_work_q = NULL;
+out_del_q:
+ destroy_workqueue(ctlr->work_q);
+ ctlr->work_q = NULL;
+out_del:
+ kfree(ctlr);
+out:
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(fcoe_ctlr_device_add);
+
+/**
+ * fcoe_ctlr_device_delete() - Delete a FIP ctlr and its subtree from sysfs
+ * @ctlr: A pointer to the ctlr to be deleted
+ *
+ * Deletes a FIP ctlr and any fcfs attached
+ * to it. Deleting fcfs will cause their childen
+ * to be deleted as well.
+ *
+ * The ctlr is detached from sysfs and it's resources
+ * are freed (work q), but the memory is not freed
+ * until its last reference is released.
+ *
+ * This routine expects no locks to be held before
+ * calling.
+ *
+ * TODO: Currently there are no callbacks to clean up LLD data
+ * for a fcoe_fcf_device. LLDs must keep this in mind as they need
+ * to clean up each of their LLD data for all fcoe_fcf_device before
+ * calling fcoe_ctlr_device_delete.
+ */
+void fcoe_ctlr_device_delete(struct fcoe_ctlr_device *ctlr)
+{
+ struct fcoe_fcf_device *fcf, *next;
+ /* Remove any attached fcfs */
+ mutex_lock(&ctlr->lock);
+ list_for_each_entry_safe(fcf, next,
+ &ctlr->fcfs, peers) {
+ list_del(&fcf->peers);
+ fcf->state = FCOE_FCF_STATE_DELETED;
+ fcoe_ctlr_device_queue_work(ctlr, &fcf->delete_work);
+ }
+ mutex_unlock(&ctlr->lock);
+
+ fcoe_ctlr_device_flush_work(ctlr);
+
+ destroy_workqueue(ctlr->devloss_work_q);
+ ctlr->devloss_work_q = NULL;
+ destroy_workqueue(ctlr->work_q);
+ ctlr->work_q = NULL;
+
+ device_unregister(&ctlr->dev);
+}
+EXPORT_SYMBOL_GPL(fcoe_ctlr_device_delete);
+
+/**
+ * fcoe_fcf_device_final_delete() - Final delete routine
+ * @work: The FIP fcf's embedded work struct
+ *
+ * It is expected that the fcf has been removed from
+ * the FIP ctlr's list before calling this routine.
+ */
+static void fcoe_fcf_device_final_delete(struct work_struct *work)
+{
+ struct fcoe_fcf_device *fcf =
+ container_of(work, struct fcoe_fcf_device, delete_work);
+ struct fcoe_ctlr_device *ctlr = fcoe_fcf_dev_to_ctlr_dev(fcf);
+
+ /*
+ * Cancel any outstanding timers. These should really exist
+ * only when rmmod'ing the LLDD and we're asking for
+ * immediate termination of the rports
+ */
+ if (!cancel_delayed_work(&fcf->dev_loss_work))
+ fcoe_ctlr_device_flush_devloss(ctlr);
+
+ device_unregister(&fcf->dev);
+}
+
+/**
+ * fip_timeout_deleted_fcf() - Delete a fcf when the devloss timer fires
+ * @work: The FIP fcf's embedded work struct
+ *
+ * Removes the fcf from the FIP ctlr's list of fcfs and
+ * queues the final deletion.
+ */
+static void fip_timeout_deleted_fcf(struct work_struct *work)
+{
+ struct fcoe_fcf_device *fcf =
+ container_of(work, struct fcoe_fcf_device, dev_loss_work.work);
+ struct fcoe_ctlr_device *ctlr = fcoe_fcf_dev_to_ctlr_dev(fcf);
+
+ mutex_lock(&ctlr->lock);
+
+ /*
+ * If the fcf is deleted or reconnected before the timer
+ * fires the devloss queue will be flushed, but the state will
+ * either be CONNECTED or DELETED. If that is the case we
+ * cancel deleting the fcf.
+ */
+ if (fcf->state != FCOE_FCF_STATE_DISCONNECTED)
+ goto out;
+
+ dev_printk(KERN_ERR, &fcf->dev,
+ "FIP fcf connection time out: removing fcf\n");
+
+ list_del(&fcf->peers);
+ fcf->state = FCOE_FCF_STATE_DELETED;
+ fcoe_ctlr_device_queue_work(ctlr, &fcf->delete_work);
+
+out:
+ mutex_unlock(&ctlr->lock);
+}
+
+/**
+ * fcoe_fcf_device_delete() - Delete a FIP fcf
+ * @fcf: Pointer to the fcf which is to be deleted
+ *
+ * Queues the FIP fcf on the devloss workqueue
+ *
+ * Expects the ctlr_attrs mutex to be held for fcf
+ * state change.
+ */
+void fcoe_fcf_device_delete(struct fcoe_fcf_device *fcf)
+{
+ struct fcoe_ctlr_device *ctlr = fcoe_fcf_dev_to_ctlr_dev(fcf);
+ int timeout = fcf->dev_loss_tmo;
+
+ if (fcf->state != FCOE_FCF_STATE_CONNECTED)
+ return;
+
+ fcf->state = FCOE_FCF_STATE_DISCONNECTED;
+
+ /*
+ * FCF will only be re-connected by the LLD calling
+ * fcoe_fcf_device_add, and it should be setting up
+ * priv then.
+ */
+ fcf->priv = NULL;
+
+ fcoe_ctlr_device_queue_devloss_work(ctlr, &fcf->dev_loss_work,
+ timeout * HZ);
+}
+EXPORT_SYMBOL_GPL(fcoe_fcf_device_delete);
+
+/**
+ * fcoe_fcf_device_add() - Add a FCoE sysfs fcoe_fcf_device to the system
+ * @ctlr: The fcoe_ctlr_device that will be the fcoe_fcf_device parent
+ * @new_fcf: A temporary FCF used for lookups on the current list of fcfs
+ *
+ * Expects to be called with the ctlr->lock held
+ */
+struct fcoe_fcf_device *fcoe_fcf_device_add(struct fcoe_ctlr_device *ctlr,
+ struct fcoe_fcf_device *new_fcf)
+{
+ struct fcoe_fcf_device *fcf;
+ int error = 0;
+
+ list_for_each_entry(fcf, &ctlr->fcfs, peers) {
+ if (fcoe_fcf_device_match(new_fcf, fcf)) {
+ if (fcf->state == FCOE_FCF_STATE_CONNECTED)
+ return fcf;
+
+ fcf->state = FCOE_FCF_STATE_CONNECTED;
+
+ if (!cancel_delayed_work(&fcf->dev_loss_work))
+ fcoe_ctlr_device_flush_devloss(ctlr);
+
+ return fcf;
+ }
+ }
+
+ fcf = kzalloc(sizeof(struct fcoe_fcf_device), GFP_ATOMIC);
+ if (unlikely(!fcf))
+ goto out;
+
+ INIT_WORK(&fcf->delete_work, fcoe_fcf_device_final_delete);
+ INIT_DELAYED_WORK(&fcf->dev_loss_work, fip_timeout_deleted_fcf);
+
+ fcf->dev.parent = &ctlr->dev;
+ fcf->dev.bus = &fcoe_bus_type;
+ fcf->dev.type = &fcoe_fcf_device_type;
+ fcf->id = atomic_inc_return(&fcf_num) - 1;
+ fcf->state = FCOE_FCF_STATE_UNKNOWN;
+
+ fcf->dev_loss_tmo = ctlr->fcf_dev_loss_tmo;
+
+ dev_set_name(&fcf->dev, "fcf_%d", fcf->id);
+
+ fcf->fabric_name = new_fcf->fabric_name;
+ fcf->switch_name = new_fcf->switch_name;
+ fcf->fc_map = new_fcf->fc_map;
+ fcf->vfid = new_fcf->vfid;
+ memcpy(fcf->mac, new_fcf->mac, ETH_ALEN);
+ fcf->priority = new_fcf->priority;
+ fcf->fka_period = new_fcf->fka_period;
+ fcf->selected = new_fcf->selected;
+
+ error = device_register(&fcf->dev);
+ if (error)
+ goto out_del;
+
+ fcf->state = FCOE_FCF_STATE_CONNECTED;
+ list_add_tail(&fcf->peers, &ctlr->fcfs);
+
+ return fcf;
+
+out_del:
+ kfree(fcf);
+out:
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(fcoe_fcf_device_add);
+
+int __init fcoe_sysfs_setup(void)
+{
+ int error;
+
+ atomic_set(&ctlr_num, 0);
+ atomic_set(&fcf_num, 0);
+
+ error = bus_register(&fcoe_bus_type);
+ if (error)
+ return error;
+
+ return 0;
+}
+
+void __exit fcoe_sysfs_teardown(void)
+{
+ bus_unregister(&fcoe_bus_type);
+}
*/
static int __init libfcoe_init(void)
{
- fcoe_transport_init();
+ int rc = 0;
- return 0;
+ rc = fcoe_transport_init();
+ if (rc)
+ return rc;
+
+ rc = fcoe_sysfs_setup();
+ if (rc)
+ fcoe_transport_exit();
+
+ return rc;
}
module_init(libfcoe_init);
*/
static void __exit libfcoe_exit(void)
{
+ fcoe_sysfs_teardown();
fcoe_transport_exit();
}
module_exit(libfcoe_exit);
Firmware images can be retrieved from:
ftp://ftp.qlogic.com/outgoing/linux/firmware/
+
+config TCM_QLA2XXX
+ tristate "TCM_QLA2XXX fabric module for Qlogic 2xxx series target mode HBAs"
+ depends on SCSI_QLA_FC && TARGET_CORE
+ select LIBFC
+ select BTREE
+ default n
+ ---help---
+ Say Y here to enable the TCM_QLA2XXX fabric module for Qlogic 2xxx series target mode HBAs
qla2xxx-y := qla_os.o qla_init.o qla_mbx.o qla_iocb.o qla_isr.o qla_gs.o \
qla_dbg.o qla_sup.o qla_attr.o qla_mid.o qla_dfs.o qla_bsg.o \
- qla_nx.o
+ qla_nx.o qla_target.o
obj-$(CONFIG_SCSI_QLA_FC) += qla2xxx.o
+obj-$(CONFIG_TCM_QLA2XXX) += tcm_qla2xxx.o
* See LICENSE.qla2xxx for copyright and licensing details.
*/
#include "qla_def.h"
+#include "qla_target.h"
#include <linux/kthread.h>
#include <linux/vmalloc.h>
scsi_block_requests(vha->host);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
if (IS_QLA82XX(ha)) {
+ ha->flags.isp82xx_no_md_cap = 1;
qla82xx_idc_lock(ha);
qla82xx_set_reset_owner(vha);
qla82xx_idc_unlock(ha);
scsi_unblock_requests(vha->host);
break;
case 0x2025d:
- if (!IS_QLA81XX(ha))
+ if (!IS_QLA81XX(ha) || !IS_QLA8031(ha))
return -EPERM;
ql_log(ql_log_info, vha, 0x706f,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
- struct qla_hw_data *ha = vha->hw;
return snprintf(buf, PAGE_SIZE, "%d\n",
- ha->qla_stats.total_isp_aborts);
+ vha->qla_stats.total_isp_aborts);
}
static ssize_t
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
- if (!IS_QLA81XX(ha) && !IS_QLA83XX(ha))
+ if (!IS_QLA81XX(ha) && !IS_QLA8031(ha))
return snprintf(buf, PAGE_SIZE, "\n");
return snprintf(buf, PAGE_SIZE, "%d.%02d.%02d\n",
dma_addr_t stats_dma;
struct fc_host_statistics *pfc_host_stat;
- pfc_host_stat = &ha->fc_host_stat;
+ pfc_host_stat = &vha->fc_host_stat;
memset(pfc_host_stat, -1, sizeof(struct fc_host_statistics));
if (test_bit(UNLOADING, &vha->dpc_flags))
pfc_host_stat->dumped_frames = stats->dumped_frames;
pfc_host_stat->nos_count = stats->nos_rcvd;
}
- pfc_host_stat->fcp_input_megabytes = ha->qla_stats.input_bytes >> 20;
- pfc_host_stat->fcp_output_megabytes = ha->qla_stats.output_bytes >> 20;
+ pfc_host_stat->fcp_input_megabytes = vha->qla_stats.input_bytes >> 20;
+ pfc_host_stat->fcp_output_megabytes = vha->qla_stats.output_bytes >> 20;
done_free:
dma_pool_free(ha->s_dma_pool, stats, stats_dma);
fc_host_supported_speeds(vha->host) =
fc_host_supported_speeds(base_vha->host);
+ qlt_vport_create(vha, ha);
qla24xx_vport_disable(fc_vport, disable);
if (ha->flags.cpu_affinity_enabled) {
fc_host_dev_loss_tmo(vha->host) = ha->port_down_retry_count;
fc_host_node_name(vha->host) = wwn_to_u64(vha->node_name);
fc_host_port_name(vha->host) = wwn_to_u64(vha->port_name);
- fc_host_supported_classes(vha->host) = FC_COS_CLASS3;
+ fc_host_supported_classes(vha->host) = ha->tgt.enable_class_2 ?
+ (FC_COS_CLASS2|FC_COS_CLASS3) : FC_COS_CLASS3;
fc_host_max_npiv_vports(vha->host) = ha->max_npiv_vports;
fc_host_npiv_vports_inuse(vha->host) = ha->cur_vport_count;
if (IS_CNA_CAPABLE(ha))
speed = FC_PORTSPEED_10GBIT;
+ else if (IS_QLA2031(ha))
+ speed = FC_PORTSPEED_16GBIT | FC_PORTSPEED_8GBIT |
+ FC_PORTSPEED_4GBIT;
else if (IS_QLA25XX(ha))
speed = FC_PORTSPEED_8GBIT | FC_PORTSPEED_4GBIT |
FC_PORTSPEED_2GBIT | FC_PORTSPEED_1GBIT;
/* Initialize all required fields of fcport */
fcport->vha = vha;
- fcport->vp_idx = vha->vp_idx;
fcport->d_id.b.al_pa =
bsg_job->request->rqst_data.h_els.port_id[0];
fcport->d_id.b.area =
/* Initialize all required fields of fcport */
fcport->vha = vha;
- fcport->vp_idx = vha->vp_idx;
fcport->d_id.b.al_pa = bsg_job->request->rqst_data.h_ct.port_id[0];
fcport->d_id.b.area = bsg_job->request->rqst_data.h_ct.port_id[1];
fcport->d_id.b.domain = bsg_job->request->rqst_data.h_ct.port_id[2];
int rval = 0;
struct qla_hw_data *ha = vha->hw;
- if (!IS_QLA81XX(ha) && !IS_QLA83XX(ha))
+ if (!IS_QLA81XX(ha) && !IS_QLA8031(ha))
goto done_set_internal;
new_config[0] = config[0] | (ENABLE_INTERNAL_LOOPBACK << 1);
uint16_t new_config[4];
struct qla_hw_data *ha = vha->hw;
- if (!IS_QLA81XX(ha) && !IS_QLA83XX(ha))
+ if (!IS_QLA81XX(ha) && !IS_QLA8031(ha))
goto done_reset_internal;
memset(new_config, 0 , sizeof(new_config));
elreq.options = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
if ((ha->current_topology == ISP_CFG_F ||
- (atomic_read(&vha->loop_state) == LOOP_DOWN) ||
- ((IS_QLA81XX(ha) || IS_QLA83XX(ha)) &&
+ ((IS_QLA81XX(ha) || IS_QLA8031(ha)) &&
le32_to_cpu(*(uint32_t *)req_data) == ELS_OPCODE_BYTE
&& req_data_len == MAX_ELS_FRAME_PAYLOAD)) &&
elreq.options == EXTERNAL_LOOPBACK) {
if (rval)
return rval;
+ /* Set the isp82xx_no_md_cap not to capture minidump */
+ ha->flags.isp82xx_no_md_cap = 1;
+
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, ha->optrom_buffer,
ha->optrom_region_size);
* ----------------------------------------------------------------------
* | Level | Last Value Used | Holes |
* ----------------------------------------------------------------------
- * | Module Init and Probe | 0x0120 | 0x4b,0xba,0xfa |
- * | Mailbox commands | 0x113e | 0x112c-0x112e |
+ * | Module Init and Probe | 0x0122 | 0x4b,0xba,0xfa |
+ * | Mailbox commands | 0x1140 | 0x111a-0x111b |
+ * | | | 0x112c-0x112e |
* | | | 0x113a |
* | Device Discovery | 0x2086 | 0x2020-0x2022 |
* | Queue Command and IO tracing | 0x3030 | 0x3006,0x3008 |
* | | | 0x302d-0x302e |
- * | DPC Thread | 0x401c | |
- * | Async Events | 0x505d | 0x502b-0x502f |
+ * | DPC Thread | 0x401c | 0x4002,0x4013 |
+ * | Async Events | 0x505f | 0x502b-0x502f |
* | | | 0x5047,0x5052 |
- * | Timer Routines | 0x6011 | 0x600e-0x600f |
+ * | Timer Routines | 0x6011 | |
* | User Space Interactions | 0x709f | 0x7018,0x702e, |
* | | | 0x7039,0x7045, |
* | | | 0x7073-0x7075, |
* | | | 0x708c |
* | Task Management | 0x803c | 0x8025-0x8026 |
* | | | 0x800b,0x8039 |
- * | AER/EEH | 0x900f | |
+ * | AER/EEH | 0x9011 | |
* | Virtual Port | 0xa007 | |
- * | ISP82XX Specific | 0xb054 | 0xb053 |
+ * | ISP82XX Specific | 0xb054 | 0xb024 |
* | MultiQ | 0xc00c | |
* | Misc | 0xd010 | |
+ * | Target Mode | 0xe06f | |
+ * | Target Mode Management | 0xf071 | |
+ * | Target Mode Task Management | 0x1000b | |
* ----------------------------------------------------------------------
*/
return (char *)iter_reg + ntohl(fcec->size);
}
+static inline void *
+qla2xxx_copy_atioqueues(struct qla_hw_data *ha, void *ptr,
+ uint32_t **last_chain)
+{
+ struct qla2xxx_mqueue_chain *q;
+ struct qla2xxx_mqueue_header *qh;
+ uint32_t num_queues;
+ int que;
+ struct {
+ int length;
+ void *ring;
+ } aq, *aqp;
+
+ if (!ha->tgt.atio_q_length)
+ return ptr;
+
+ num_queues = 1;
+ aqp = &aq;
+ aqp->length = ha->tgt.atio_q_length;
+ aqp->ring = ha->tgt.atio_ring;
+
+ for (que = 0; que < num_queues; que++) {
+ /* aqp = ha->atio_q_map[que]; */
+ q = ptr;
+ *last_chain = &q->type;
+ q->type = __constant_htonl(DUMP_CHAIN_QUEUE);
+ q->chain_size = htonl(
+ sizeof(struct qla2xxx_mqueue_chain) +
+ sizeof(struct qla2xxx_mqueue_header) +
+ (aqp->length * sizeof(request_t)));
+ ptr += sizeof(struct qla2xxx_mqueue_chain);
+
+ /* Add header. */
+ qh = ptr;
+ qh->queue = __constant_htonl(TYPE_ATIO_QUEUE);
+ qh->number = htonl(que);
+ qh->size = htonl(aqp->length * sizeof(request_t));
+ ptr += sizeof(struct qla2xxx_mqueue_header);
+
+ /* Add data. */
+ memcpy(ptr, aqp->ring, aqp->length * sizeof(request_t));
+
+ ptr += aqp->length * sizeof(request_t);
+ }
+
+ return ptr;
+}
+
static inline void *
qla25xx_copy_mqueues(struct qla_hw_data *ha, void *ptr, uint32_t **last_chain)
{
struct qla24xx_fw_dump *fw;
uint32_t ext_mem_cnt;
void *nxt;
+ void *nxt_chain;
+ uint32_t *last_chain = NULL;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
if (IS_QLA82XX(ha))
qla24xx_copy_eft(ha, nxt);
+ nxt_chain = (void *)ha->fw_dump + ha->chain_offset;
+ nxt_chain = qla2xxx_copy_atioqueues(ha, nxt_chain, &last_chain);
+ if (last_chain) {
+ ha->fw_dump->version |= __constant_htonl(DUMP_CHAIN_VARIANT);
+ *last_chain |= __constant_htonl(DUMP_CHAIN_LAST);
+ }
+
+ /* Adjust valid length. */
+ ha->fw_dump_len = (nxt_chain - (void *)ha->fw_dump);
+
qla24xx_fw_dump_failed_0:
qla2xxx_dump_post_process(base_vha, rval);
/* Chain entries -- started with MQ. */
nxt_chain = qla25xx_copy_fce(ha, nxt_chain, &last_chain);
nxt_chain = qla25xx_copy_mqueues(ha, nxt_chain, &last_chain);
+ nxt_chain = qla2xxx_copy_atioqueues(ha, nxt_chain, &last_chain);
if (last_chain) {
ha->fw_dump->version |= __constant_htonl(DUMP_CHAIN_VARIANT);
*last_chain |= __constant_htonl(DUMP_CHAIN_LAST);
/* Chain entries -- started with MQ. */
nxt_chain = qla25xx_copy_fce(ha, nxt_chain, &last_chain);
nxt_chain = qla25xx_copy_mqueues(ha, nxt_chain, &last_chain);
+ nxt_chain = qla2xxx_copy_atioqueues(ha, nxt_chain, &last_chain);
if (last_chain) {
ha->fw_dump->version |= __constant_htonl(DUMP_CHAIN_VARIANT);
*last_chain |= __constant_htonl(DUMP_CHAIN_LAST);
/* Chain entries -- started with MQ. */
nxt_chain = qla25xx_copy_fce(ha, nxt_chain, &last_chain);
nxt_chain = qla25xx_copy_mqueues(ha, nxt_chain, &last_chain);
+ nxt_chain = qla2xxx_copy_atioqueues(ha, nxt_chain, &last_chain);
if (last_chain) {
ha->fw_dump->version |= __constant_htonl(DUMP_CHAIN_VARIANT);
*last_chain |= __constant_htonl(DUMP_CHAIN_LAST);
uint32_t queue;
#define TYPE_REQUEST_QUEUE 0x1
#define TYPE_RESPONSE_QUEUE 0x2
+#define TYPE_ATIO_QUEUE 0x3
uint32_t number;
uint32_t size;
};
#define ql_dbg_misc 0x00010000 /* For dumping everything that is not
* not covered by upper categories
*/
+#define ql_dbg_verbose 0x00008000 /* More verbosity for each level
+ * This is to be used with other levels where
+ * more verbosity is required. It might not
+ * be applicable to all the levels.
+ */
+#define ql_dbg_tgt 0x00004000 /* Target mode */
+#define ql_dbg_tgt_mgt 0x00002000 /* Target mode management */
+#define ql_dbg_tgt_tmr 0x00001000 /* Target mode task management */
#define RESPONSE_ENTRY_CNT_2100 64 /* Number of response entries.*/
#define RESPONSE_ENTRY_CNT_2300 512 /* Number of response entries.*/
#define RESPONSE_ENTRY_CNT_MQ 128 /* Number of response entries.*/
+#define ATIO_ENTRY_CNT_24XX 4096 /* Number of ATIO entries. */
struct req_que;
* ISP queue - response queue entry definition.
*/
typedef struct {
- uint8_t data[60];
+ uint8_t entry_type; /* Entry type. */
+ uint8_t entry_count; /* Entry count. */
+ uint8_t sys_define; /* System defined. */
+ uint8_t entry_status; /* Entry Status. */
+ uint32_t handle; /* System defined handle */
+ uint8_t data[52];
uint32_t signature;
#define RESPONSE_PROCESSED 0xDEADDEAD /* Signature */
} response_t;
+/*
+ * ISP queue - ATIO queue entry definition.
+ */
+struct atio {
+ uint8_t entry_type; /* Entry type. */
+ uint8_t entry_count; /* Entry count. */
+ uint8_t data[58];
+ uint32_t signature;
+#define ATIO_PROCESSED 0xDEADDEAD /* Signature */
+};
+
typedef union {
uint16_t extended;
struct {
struct fc_rport *rport, *drport;
u32 supported_classes;
- uint16_t vp_idx;
uint8_t fc4_type;
uint8_t scan_state;
} fc_port_t;
+#define QLA_FCPORT_SCAN_NONE 0
+#define QLA_FCPORT_SCAN_FOUND 1
+
/*
* Fibre channel port/lun states.
*/
#define FCF_LOGIN_NEEDED BIT_1
#define FCF_FCP2_DEVICE BIT_2
#define FCF_ASYNC_SENT BIT_3
+#define FCF_CONF_COMP_SUPPORTED BIT_4
/* No loop ID flag. */
#define FC_NO_LOOP_ID 0x1000
uint32_t len;
};
+struct qlt_hw_data {
+ /* Protected by hw lock */
+ uint32_t enable_class_2:1;
+ uint32_t enable_explicit_conf:1;
+ uint32_t ini_mode_force_reverse:1;
+ uint32_t node_name_set:1;
+
+ dma_addr_t atio_dma; /* Physical address. */
+ struct atio *atio_ring; /* Base virtual address */
+ struct atio *atio_ring_ptr; /* Current address. */
+ uint16_t atio_ring_index; /* Current index. */
+ uint16_t atio_q_length;
+
+ void *target_lport_ptr;
+ struct qla_tgt_func_tmpl *tgt_ops;
+ struct qla_tgt *qla_tgt;
+ struct qla_tgt_cmd *cmds[MAX_OUTSTANDING_COMMANDS];
+ uint16_t current_handle;
+
+ struct qla_tgt_vp_map *tgt_vp_map;
+ struct mutex tgt_mutex;
+ struct mutex tgt_host_action_mutex;
+
+ int saved_set;
+ uint16_t saved_exchange_count;
+ uint32_t saved_firmware_options_1;
+ uint32_t saved_firmware_options_2;
+ uint32_t saved_firmware_options_3;
+ uint8_t saved_firmware_options[2];
+ uint8_t saved_add_firmware_options[2];
+
+ uint8_t tgt_node_name[WWN_SIZE];
+};
+
/*
* Qlogic host adapter specific data structure.
*/
uint32_t thermal_supported:1;
uint32_t isp82xx_reset_hdlr_active:1;
uint32_t isp82xx_reset_owner:1;
- /* 28 bits */
+ uint32_t isp82xx_no_md_cap:1;
+ uint32_t host_shutting_down:1;
+ /* 30 bits */
} flags;
/* This spinlock is used to protect "io transactions", you must
/* ISP2322: red, green, amber. */
uint16_t zio_mode;
uint16_t zio_timer;
- struct fc_host_statistics fc_host_stat;
struct qla_msix_entry *msix_entries;
int cur_vport_count;
struct qla_chip_state_84xx *cs84xx;
- struct qla_statistics qla_stats;
struct isp_operations *isp_ops;
struct workqueue_struct *wq;
struct qlfc_fw fw_buf;
dma_addr_t md_tmplt_hdr_dma;
void *md_dump;
uint32_t md_dump_size;
+
+ struct qlt_hw_data tgt;
};
/*
#define FCOE_CTX_RESET_NEEDED 18 /* Initiate FCoE context reset */
#define MPI_RESET_NEEDED 19 /* Initiate MPI FW reset */
#define ISP_QUIESCE_NEEDED 20 /* Driver need some quiescence */
+#define SCR_PENDING 21 /* SCR in target mode */
uint32_t device_flags;
#define SWITCH_FOUND BIT_0
struct req_que *req;
int fw_heartbeat_counter;
int seconds_since_last_heartbeat;
+ struct fc_host_statistics fc_host_stat;
+ struct qla_statistics qla_stats;
atomic_t vref_count;
} scsi_qla_host_t;
+#define SET_VP_IDX 1
+#define SET_AL_PA 2
+#define RESET_VP_IDX 3
+#define RESET_AL_PA 4
+struct qla_tgt_vp_map {
+ uint8_t idx;
+ scsi_qla_host_t *vha;
+};
+
/*
* Macros to help code, maintain, etc.
*/
/*
* Global Function Prototypes in qla_iocb.c source file.
*/
+
extern uint16_t qla2x00_calc_iocbs_32(uint16_t);
extern uint16_t qla2x00_calc_iocbs_64(uint16_t);
extern void qla2x00_build_scsi_iocbs_32(srb_t *, cmd_entry_t *, uint16_t);
extern void qla24xx_build_scsi_iocbs(srb_t *, struct cmd_type_7 *, uint16_t);
extern int qla24xx_dif_start_scsi(srb_t *);
+extern void *qla2x00_alloc_iocbs(scsi_qla_host_t *, srb_t *);
+extern int qla2x00_issue_marker(scsi_qla_host_t *, int);
/*
* Global Function Prototypes in qla_mbx.c source file.
extern int
qla2x00_init_firmware(scsi_qla_host_t *, uint16_t);
+extern int
+qla2x00_get_node_name_list(scsi_qla_host_t *, void **, int *);
+
extern int
qla2x00_get_port_database(scsi_qla_host_t *, fc_port_t *, uint8_t);
extern void qla2x00_free_irqs(scsi_qla_host_t *);
extern int qla2x00_get_data_rate(scsi_qla_host_t *);
+extern char *qla2x00_get_link_speed_str(struct qla_hw_data *);
+
/*
* Global Function Prototypes in qla_sup.c source file.
*/
extern void qla2x00_sp_timeout(unsigned long);
extern void qla2x00_bsg_job_done(void *, void *, int);
extern void qla2x00_bsg_sp_free(void *, void *);
+extern void qla2x00_start_iocbs(struct scsi_qla_host *, struct req_que *);
/* Interrupt related */
extern irqreturn_t qla82xx_intr_handler(int, void *);
* See LICENSE.qla2xxx for copyright and licensing details.
*/
#include "qla_def.h"
+#include "qla_target.h"
static int qla2x00_sns_ga_nxt(scsi_qla_host_t *, fc_port_t *);
static int qla2x00_sns_gid_pt(scsi_qla_host_t *, sw_info_t *);
ct_req->req.rff_id.port_id[1] = vha->d_id.b.area;
ct_req->req.rff_id.port_id[2] = vha->d_id.b.al_pa;
- ct_req->req.rff_id.fc4_feature = BIT_1;
+ qlt_rff_id(vha, ct_req);
+
ct_req->req.rff_id.fc4_type = 0x08; /* SCSI - FCP */
/* Execute MS IOCB */
#include <asm/prom.h>
#endif
+#include <target/target_core_base.h>
+#include "qla_target.h"
+
/*
* QLogic ISP2x00 Hardware Support Function Prototypes.
*/
return QLA_FUNCTION_FAILED;
}
}
- rval = qla2x00_init_rings(vha);
+
+ if (qla_ini_mode_enabled(vha))
+ rval = qla2x00_init_rings(vha);
+
ha->flags.chip_reset_done = 1;
if (rval == QLA_SUCCESS && IS_QLA84XX(ha)) {
mq_size += ha->max_rsp_queues *
(rsp->length * sizeof(response_t));
}
+ if (ha->tgt.atio_q_length)
+ mq_size += ha->tgt.atio_q_length * sizeof(request_t);
/* Allocate memory for Fibre Channel Event Buffer. */
if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha))
goto try_eft;
icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
+ /* Setup ATIO queue dma pointers for target mode */
+ icb->atio_q_inpointer = __constant_cpu_to_le16(0);
+ icb->atio_q_length = cpu_to_le16(ha->tgt.atio_q_length);
+ icb->atio_q_address[0] = cpu_to_le32(LSD(ha->tgt.atio_dma));
+ icb->atio_q_address[1] = cpu_to_le32(MSD(ha->tgt.atio_dma));
+
if (ha->mqenable || IS_QLA83XX(ha)) {
icb->qos = __constant_cpu_to_le16(QLA_DEFAULT_QUE_QOS);
icb->rid = __constant_cpu_to_le16(rid);
WRT_REG_DWORD(®->isp24.rsp_q_in, 0);
WRT_REG_DWORD(®->isp24.rsp_q_out, 0);
}
+ qlt_24xx_config_rings(vha, reg);
+
/* PCI posting */
RD_REG_DWORD(&ioreg->hccr);
}
spin_unlock(&ha->vport_slock);
+ ha->tgt.atio_ring_ptr = ha->tgt.atio_ring;
+ ha->tgt.atio_ring_index = 0;
+ /* Initialize ATIO queue entries */
+ qlt_init_atio_q_entries(vha);
+
ha->isp_ops->config_rings(vha);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
vha->d_id.b.area = area;
vha->d_id.b.al_pa = al_pa;
+ spin_lock(&ha->vport_slock);
+ qlt_update_vp_map(vha, SET_AL_PA);
+ spin_unlock(&ha->vport_slock);
+
if (!vha->flags.init_done)
ql_log(ql_log_info, vha, 0x2010,
"Topology - %s, Host Loop address 0x%x.\n",
nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
/* Reset NVRAM data. */
ql_log(ql_log_warn, vha, 0x0064,
- "Inconisistent NVRAM "
+ "Inconsistent NVRAM "
"detected: checksum=0x%x id=%c version=0x%x.\n",
chksum, nv->id[0], nv->nvram_version);
ql_log(ql_log_warn, vha, 0x0065,
if (IS_QLA23XX(ha)) {
nv->firmware_options[0] |= BIT_2;
nv->firmware_options[0] &= ~BIT_3;
- nv->firmware_options[0] &= ~BIT_6;
+ nv->special_options[0] &= ~BIT_6;
nv->add_firmware_options[1] |= BIT_5 | BIT_4;
if (IS_QLA2300(ha)) {
{
fc_port_t *fcport = data;
struct fc_rport *rport;
+ scsi_qla_host_t *vha = fcport->vha;
unsigned long flags;
spin_lock_irqsave(fcport->vha->host->host_lock, flags);
rport = fcport->drport ? fcport->drport: fcport->rport;
fcport->drport = NULL;
spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
- if (rport)
+ if (rport) {
fc_remote_port_delete(rport);
+ /*
+ * Release the target mode FC NEXUS in qla_target.c code
+ * if target mod is enabled.
+ */
+ qlt_fc_port_deleted(vha, fcport);
+ }
}
/**
/* Setup fcport template structure. */
fcport->vha = vha;
- fcport->vp_idx = vha->vp_idx;
fcport->port_type = FCT_UNKNOWN;
fcport->loop_id = FC_NO_LOOP_ID;
qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
fcport->supported_classes = FC_COS_UNSPECIFIED;
+ fcport->scan_state = QLA_FCPORT_SCAN_NONE;
return fcport;
}
new_fcport->d_id.b.area = area;
new_fcport->d_id.b.al_pa = al_pa;
new_fcport->loop_id = loop_id;
- new_fcport->vp_idx = vha->vp_idx;
rval2 = qla2x00_get_port_database(vha, new_fcport, 0);
if (rval2 != QLA_SUCCESS) {
ql_dbg(ql_dbg_disc, vha, 0x201a,
if (!found) {
/* New device, add to fcports list. */
- if (vha->vp_idx) {
- new_fcport->vha = vha;
- new_fcport->vp_idx = vha->vp_idx;
- }
list_add_tail(&new_fcport->list, &vha->vp_fcports);
/* Allocate a new replacement fcport. */
static void
qla2x00_iidma_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
{
-#define LS_UNKNOWN 2
- static char *link_speeds[] = { "1", "2", "?", "4", "8", "10" };
char *link_speed;
int rval;
uint16_t mb[4];
fcport->port_name[6], fcport->port_name[7], rval,
fcport->fp_speed, mb[0], mb[1]);
} else {
- link_speed = link_speeds[LS_UNKNOWN];
- if (fcport->fp_speed < 5)
- link_speed = link_speeds[fcport->fp_speed];
- else if (fcport->fp_speed == 0x13)
- link_speed = link_speeds[5];
+ link_speed = qla2x00_get_link_speed_str(ha);
ql_dbg(ql_dbg_disc, vha, 0x2005,
"iIDMA adjusted to %s GB/s "
"on %02x%02x%02x%02x%02x%02x%02x%02x.\n", link_speed,
"Unable to allocate fc remote port.\n");
return;
}
+ /*
+ * Create target mode FC NEXUS in qla_target.c if target mode is
+ * enabled..
+ */
+ qlt_fc_port_added(vha, fcport);
+
spin_lock_irqsave(fcport->vha->host->host_lock, flags);
*((fc_port_t **)rport->dd_data) = fcport;
spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
qla2x00_configure_fabric(scsi_qla_host_t *vha)
{
int rval;
- fc_port_t *fcport, *fcptemp;
+ fc_port_t *fcport;
uint16_t next_loopid;
uint16_t mb[MAILBOX_REGISTER_COUNT];
uint16_t loop_id;
0xfc, mb, BIT_1|BIT_0);
if (rval != QLA_SUCCESS) {
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
- return rval;
+ break;
}
if (mb[0] != MBS_COMMAND_COMPLETE) {
ql_dbg(ql_dbg_disc, vha, 0x2042,
}
}
-#define QLA_FCPORT_SCAN 1
-#define QLA_FCPORT_FOUND 2
-
- list_for_each_entry(fcport, &vha->vp_fcports, list) {
- fcport->scan_state = QLA_FCPORT_SCAN;
- }
-
rval = qla2x00_find_all_fabric_devs(vha, &new_fcports);
if (rval != QLA_SUCCESS)
break;
- /*
- * Logout all previous fabric devices marked lost, except
- * FCP2 devices.
- */
+ /* Add new ports to existing port list */
+ list_splice_tail_init(&new_fcports, &vha->vp_fcports);
+
+ /* Starting free loop ID. */
+ next_loopid = ha->min_external_loopid;
+
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
break;
if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
continue;
- if (fcport->scan_state == QLA_FCPORT_SCAN &&
+ /* Logout lost/gone fabric devices (non-FCP2) */
+ if (fcport->scan_state != QLA_FCPORT_SCAN_FOUND &&
atomic_read(&fcport->state) == FCS_ONLINE) {
qla2x00_mark_device_lost(vha, fcport,
ql2xplogiabsentdevice, 0);
fcport->d_id.b.domain,
fcport->d_id.b.area,
fcport->d_id.b.al_pa);
- fcport->loop_id = FC_NO_LOOP_ID;
}
- }
- }
-
- /* Starting free loop ID. */
- next_loopid = ha->min_external_loopid;
-
- /*
- * Scan through our port list and login entries that need to be
- * logged in.
- */
- list_for_each_entry(fcport, &vha->vp_fcports, list) {
- if (atomic_read(&vha->loop_down_timer) ||
- test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
- break;
-
- if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
- (fcport->flags & FCF_LOGIN_NEEDED) == 0)
continue;
-
- if (fcport->loop_id == FC_NO_LOOP_ID) {
- fcport->loop_id = next_loopid;
- rval = qla2x00_find_new_loop_id(
- base_vha, fcport);
- if (rval != QLA_SUCCESS) {
- /* Ran out of IDs to use */
- break;
- }
}
- /* Login and update database */
- qla2x00_fabric_dev_login(vha, fcport, &next_loopid);
- }
-
- /* Exit if out of loop IDs. */
- if (rval != QLA_SUCCESS) {
- break;
- }
-
- /*
- * Login and add the new devices to our port list.
- */
- list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
- if (atomic_read(&vha->loop_down_timer) ||
- test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
- break;
-
- /* Find a new loop ID to use. */
- fcport->loop_id = next_loopid;
- rval = qla2x00_find_new_loop_id(base_vha, fcport);
- if (rval != QLA_SUCCESS) {
- /* Ran out of IDs to use */
- break;
+ fcport->scan_state = QLA_FCPORT_SCAN_NONE;
+
+ /* Login fabric devices that need a login */
+ if ((fcport->flags & FCF_LOGIN_NEEDED) != 0 &&
+ atomic_read(&vha->loop_down_timer) == 0) {
+ if (fcport->loop_id == FC_NO_LOOP_ID) {
+ fcport->loop_id = next_loopid;
+ rval = qla2x00_find_new_loop_id(
+ base_vha, fcport);
+ if (rval != QLA_SUCCESS) {
+ /* Ran out of IDs to use */
+ continue;
+ }
+ }
}
/* Login and update database */
qla2x00_fabric_dev_login(vha, fcport, &next_loopid);
-
- if (vha->vp_idx) {
- fcport->vha = vha;
- fcport->vp_idx = vha->vp_idx;
- }
- list_move_tail(&fcport->list, &vha->vp_fcports);
}
} while (0);
- /* Free all new device structures not processed. */
- list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
- list_del(&fcport->list);
- kfree(fcport);
- }
-
if (rval) {
ql_dbg(ql_dbg_disc, vha, 0x2068,
"Configure fabric error exit rval=%d.\n", rval);
WWN_SIZE))
continue;
- fcport->scan_state = QLA_FCPORT_FOUND;
+ fcport->scan_state = QLA_FCPORT_SCAN_FOUND;
found++;
if (mb[10] & BIT_1)
fcport->supported_classes |= FC_COS_CLASS3;
+ if (IS_FWI2_CAPABLE(ha)) {
+ if (mb[10] & BIT_7)
+ fcport->flags |=
+ FCF_CONF_COMP_SUPPORTED;
+ }
+
rval = QLA_SUCCESS;
break;
} else if (mb[0] == MBS_LOOP_ID_USED) {
vha->flags.online = 0;
ha->flags.chip_reset_done = 0;
clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
- ha->qla_stats.total_isp_aborts++;
+ vha->qla_stats.total_isp_aborts++;
ql_log(ql_log_info, vha, 0x00af,
"Performing ISP error recovery - ha=%p.\n", ha);
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
struct rsp_que *rsp = ha->rsp_q_map[0];
+ unsigned long flags;
/* If firmware needs to be loaded */
if (qla2x00_isp_firmware(vha)) {
qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL);
vha->flags.online = 1;
+
+ /*
+ * Process any ATIO queue entries that came in
+ * while we weren't online.
+ */
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ if (qla_tgt_mode_enabled(vha))
+ qlt_24xx_process_atio_queue(vha);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
/* Wait at most MAX_TARGET RSCNs for a stable link. */
wait_time = 256;
do {
nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
/* Reset NVRAM data. */
ql_log(ql_log_warn, vha, 0x006b,
- "Inconisistent NVRAM detected: checksum=0x%x id=%c "
+ "Inconsistent NVRAM detected: checksum=0x%x id=%c "
"version=0x%x.\n", chksum, nv->id[0], nv->nvram_version);
ql_log(ql_log_warn, vha, 0x006c,
"Falling back to functioning (yet invalid -- WWPN) "
rval = 1;
}
+ if (!qla_ini_mode_enabled(vha)) {
+ /* Don't enable full login after initial LIP */
+ nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_13);
+ /* Don't enable LIP full login for initiator */
+ nv->host_p &= __constant_cpu_to_le32(~BIT_10);
+ }
+
+ qlt_24xx_config_nvram_stage1(vha, nv);
+
/* Reset Initialization control block */
memset(icb, 0, ha->init_cb_size);
qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
"QLA2462");
- /* Use alternate WWN? */
+ qlt_24xx_config_nvram_stage2(vha, icb);
+
if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
+ /* Use alternate WWN? */
memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
}
nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
/* Reset NVRAM data. */
ql_log(ql_log_info, vha, 0x0073,
- "Inconisistent NVRAM detected: checksum=0x%x id=%c "
+ "Inconsistent NVRAM detected: checksum=0x%x id=%c "
"version=0x%x.\n", chksum, nv->id[0],
le16_to_cpu(nv->nvram_version));
ql_log(ql_log_info, vha, 0x0074,
* See LICENSE.qla2xxx for copyright and licensing details.
*/
#include "qla_def.h"
+#include "qla_target.h"
#include <linux/blkdev.h>
#include <linux/delay.h>
{
uint16_t cflags;
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
+ struct scsi_qla_host *vha = sp->fcport->vha;
cflags = 0;
/* Set transfer direction */
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
cflags = CF_WRITE;
- sp->fcport->vha->hw->qla_stats.output_bytes +=
- scsi_bufflen(cmd);
+ vha->qla_stats.output_bytes += scsi_bufflen(cmd);
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
cflags = CF_READ;
- sp->fcport->vha->hw->qla_stats.input_bytes +=
- scsi_bufflen(cmd);
+ vha->qla_stats.input_bytes += scsi_bufflen(cmd);
}
return (cflags);
}
else
req->cnt = req->length -
(req->ring_index - cnt);
+ /* If still no head room then bail out */
+ if (req->cnt < (req_cnt + 2))
+ goto queuing_error;
}
- if (req->cnt < (req_cnt + 2))
- goto queuing_error;
/* Build command packet */
req->current_outstanding_cmd = handle;
/**
* qla2x00_start_iocbs() - Execute the IOCB command
*/
-static void
+void
qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req)
{
struct qla_hw_data *ha = vha->hw;
return (ret);
}
+/*
+ * qla2x00_issue_marker
+ *
+ * Issue marker
+ * Caller CAN have hardware lock held as specified by ha_locked parameter.
+ * Might release it, then reaquire.
+ */
+int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked)
+{
+ if (ha_locked) {
+ if (__qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0,
+ MK_SYNC_ALL) != QLA_SUCCESS)
+ return QLA_FUNCTION_FAILED;
+ } else {
+ if (qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0,
+ MK_SYNC_ALL) != QLA_SUCCESS)
+ return QLA_FUNCTION_FAILED;
+ }
+ vha->marker_needed = 0;
+
+ return QLA_SUCCESS;
+}
+
/**
* qla24xx_calc_iocbs() - Determine number of Command Type 3 and
* Continuation Type 1 IOCBs to allocate.
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
cmd_pkt->control_flags =
__constant_cpu_to_le16(CF_WRITE_DATA);
- ha->qla_stats.output_bytes += scsi_bufflen(cmd);
+ vha->qla_stats.output_bytes += scsi_bufflen(cmd);
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
cmd_pkt->control_flags =
__constant_cpu_to_le16(CF_READ_DATA);
- ha->qla_stats.input_bytes += scsi_bufflen(cmd);
+ vha->qla_stats.input_bytes += scsi_bufflen(cmd);
}
cur_seg = scsi_sglist(cmd);
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
cmd_pkt->task_mgmt_flags =
__constant_cpu_to_le16(TMF_WRITE_DATA);
- sp->fcport->vha->hw->qla_stats.output_bytes +=
- scsi_bufflen(cmd);
+ vha->qla_stats.output_bytes += scsi_bufflen(cmd);
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
cmd_pkt->task_mgmt_flags =
__constant_cpu_to_le16(TMF_READ_DATA);
- sp->fcport->vha->hw->qla_stats.input_bytes +=
- scsi_bufflen(cmd);
+ vha->qla_stats.input_bytes += scsi_bufflen(cmd);
}
/* One DSD is available in the Command Type 3 IOCB */
return QLA_SUCCESS;
}
- cmd_pkt->vp_index = sp->fcport->vp_idx;
+ cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
/* Set transfer direction */
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
else
req->cnt = req->length -
(req->ring_index - cnt);
+ if (req->cnt < (req_cnt + 2))
+ goto queuing_error;
}
- if (req->cnt < (req_cnt + 2))
- goto queuing_error;
/* Build command packet. */
req->current_outstanding_cmd = handle;
cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
- cmd_pkt->vp_index = sp->fcport->vp_idx;
+ cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
else
req->cnt = req->length -
(req->ring_index - cnt);
+ if (req->cnt < (req_cnt + 2))
+ goto queuing_error;
}
- if (req->cnt < (req_cnt + 2))
- goto queuing_error;
-
status |= QDSS_GOT_Q_SPACE;
/* Build header part of command packet (excluding the OPCODE). */
logio->port_id[0] = sp->fcport->d_id.b.al_pa;
logio->port_id[1] = sp->fcport->d_id.b.area;
logio->port_id[2] = sp->fcport->d_id.b.domain;
- logio->vp_index = sp->fcport->vp_idx;
+ logio->vp_index = sp->fcport->vha->vp_idx;
}
static void
mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain);
mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 |
sp->fcport->d_id.b.al_pa);
- mbx->mb9 = cpu_to_le16(sp->fcport->vp_idx);
+ mbx->mb9 = cpu_to_le16(sp->fcport->vha->vp_idx);
}
static void
logio->port_id[0] = sp->fcport->d_id.b.al_pa;
logio->port_id[1] = sp->fcport->d_id.b.area;
logio->port_id[2] = sp->fcport->d_id.b.domain;
- logio->vp_index = sp->fcport->vp_idx;
+ logio->vp_index = sp->fcport->vha->vp_idx;
}
static void
mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain);
mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 |
sp->fcport->d_id.b.al_pa);
- mbx->mb9 = cpu_to_le16(sp->fcport->vp_idx);
+ mbx->mb9 = cpu_to_le16(sp->fcport->vha->vp_idx);
/* Implicit: mbx->mbx10 = 0. */
}
logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC);
logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
- logio->vp_index = sp->fcport->vp_idx;
+ logio->vp_index = sp->fcport->vha->vp_idx;
}
static void
mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma));
mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma)));
mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma)));
- mbx->mb9 = cpu_to_le16(sp->fcport->vp_idx);
+ mbx->mb9 = cpu_to_le16(sp->fcport->vha->vp_idx);
}
static void
tsk->port_id[0] = fcport->d_id.b.al_pa;
tsk->port_id[1] = fcport->d_id.b.area;
tsk->port_id[2] = fcport->d_id.b.domain;
- tsk->vp_index = fcport->vp_idx;
+ tsk->vp_index = fcport->vha->vp_idx;
if (flags == TCF_LUN_RESET) {
int_to_scsilun(lun, &tsk->lun);
els_iocb->handle = sp->handle;
els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
els_iocb->tx_dsd_count = __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt);
- els_iocb->vp_index = sp->fcport->vp_idx;
+ els_iocb->vp_index = sp->fcport->vha->vp_idx;
els_iocb->sof_type = EST_SOFI3;
els_iocb->rx_dsd_count = __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt);
ct_iocb->handle = sp->handle;
ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
- ct_iocb->vp_index = sp->fcport->vp_idx;
+ ct_iocb->vp_index = sp->fcport->vha->vp_idx;
ct_iocb->comp_status = __constant_cpu_to_le16(0);
ct_iocb->cmd_dsd_count =
else
req->cnt = req->length -
(req->ring_index - cnt);
+ if (req->cnt < (req_cnt + 2))
+ goto queuing_error;
}
- if (req->cnt < (req_cnt + 2))
- goto queuing_error;
-
ctx = sp->u.scmd.ctx =
mempool_alloc(ha->ctx_mempool, GFP_ATOMIC);
if (!ctx) {
if (!ctx->fcp_cmnd) {
ql_log(ql_log_fatal, vha, 0x3011,
"Failed to allocate fcp_cmnd for cmd=%p.\n", cmd);
- goto queuing_error_fcp_cmnd;
+ goto queuing_error;
}
/* Initialize the DSD list and dma handle */
cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
- cmd_pkt->vp_index = sp->fcport->vp_idx;
+ cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
/* Build IOCB segments */
if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds))
cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
- cmd_pkt->vp_index = sp->fcport->vp_idx;
+ cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun,
* See LICENSE.qla2xxx for copyright and licensing details.
*/
#include "qla_def.h"
+#include "qla_target.h"
#include <linux/delay.h>
#include <linux/slab.h>
"IDC failed to post ACK.\n");
}
+#define LS_UNKNOWN 2
+char *
+qla2x00_get_link_speed_str(struct qla_hw_data *ha)
+{
+ static char *link_speeds[] = {"1", "2", "?", "4", "8", "16", "10"};
+ char *link_speed;
+ int fw_speed = ha->link_data_rate;
+
+ if (IS_QLA2100(ha) || IS_QLA2200(ha))
+ link_speed = link_speeds[0];
+ else if (fw_speed == 0x13)
+ link_speed = link_speeds[6];
+ else {
+ link_speed = link_speeds[LS_UNKNOWN];
+ if (fw_speed < 6)
+ link_speed =
+ link_speeds[fw_speed];
+ }
+
+ return link_speed;
+}
+
/**
* qla2x00_async_event() - Process aynchronous events.
* @ha: SCSI driver HA context
void
qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
{
-#define LS_UNKNOWN 2
- static char *link_speeds[] = { "1", "2", "?", "4", "8", "16", "10" };
- char *link_speed;
uint16_t handle_cnt;
uint16_t cnt, mbx;
uint32_t handles[5];
case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
ql_dbg(ql_dbg_async, vha, 0x5008,
"Asynchronous WAKEUP_THRES.\n");
- break;
+ break;
case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
ql_dbg(ql_dbg_async, vha, 0x5009,
"LIP occurred (%x).\n", mb[1]);
break;
case MBA_LOOP_UP: /* Loop Up Event */
- if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
- link_speed = link_speeds[0];
+ if (IS_QLA2100(ha) || IS_QLA2200(ha))
ha->link_data_rate = PORT_SPEED_1GB;
- } else {
- link_speed = link_speeds[LS_UNKNOWN];
- if (mb[1] < 6)
- link_speed = link_speeds[mb[1]];
- else if (mb[1] == 0x13)
- link_speed = link_speeds[6];
+ else
ha->link_data_rate = mb[1];
- }
ql_dbg(ql_dbg_async, vha, 0x500a,
- "LOOP UP detected (%s Gbps).\n", link_speed);
+ "LOOP UP detected (%s Gbps).\n",
+ qla2x00_get_link_speed_str(ha));
vha->flags.management_server_logged_in = 0;
qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
ql_dbg(ql_dbg_async, vha, 0x5010,
"Port unavailable %04x %04x %04x.\n",
mb[1], mb[2], mb[3]);
+ ql_log(ql_log_warn, vha, 0x505e,
+ "Link is offline.\n");
if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
atomic_set(&vha->loop_state, LOOP_DOWN);
ql_dbg(ql_dbg_async, vha, 0x5011,
"Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
mb[1], mb[2], mb[3]);
+
+ qlt_async_event(mb[0], vha, mb);
break;
}
ql_dbg(ql_dbg_async, vha, 0x5012,
"Port database changed %04x %04x %04x.\n",
mb[1], mb[2], mb[3]);
+ ql_log(ql_log_warn, vha, 0x505f,
+ "Link is operational (%s Gbps).\n",
+ qla2x00_get_link_speed_str(ha));
/*
* Mark all devices as missing so we will login again.
qla2x00_mark_all_devices_lost(vha, 1);
+ if (vha->vp_idx == 0 && !qla_ini_mode_enabled(vha))
+ set_bit(SCR_PENDING, &vha->dpc_flags);
+
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
+
+ qlt_async_event(mb[0], vha, mb);
break;
case MBA_RSCN_UPDATE: /* State Change Registration */
mb[0], mb[1], mb[2], mb[3]);
}
+ qlt_async_event(mb[0], vha, mb);
+
if (!vha->vp_idx && ha->num_vhosts)
qla2x00_alert_all_vps(rsp, mb);
}
} else if (iop[0] & BIT_5)
fcport->port_type = FCT_INITIATOR;
+ if (iop[0] & BIT_7)
+ fcport->flags |= FCF_CONF_COMP_SUPPORTED;
+
if (logio->io_parameter[7] || logio->io_parameter[8])
fcport->supported_classes |= FC_COS_CLASS2;
if (logio->io_parameter[9] || logio->io_parameter[10])
if (pkt->entry_status != 0) {
qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
+
+ (void)qlt_24xx_process_response_error(vha, pkt);
+
((response_t *)pkt)->signature = RESPONSE_PROCESSED;
wmb();
continue;
case ELS_IOCB_TYPE:
qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
break;
+ case ABTS_RECV_24XX:
+ /* ensure that the ATIO queue is empty */
+ qlt_24xx_process_atio_queue(vha);
+ case ABTS_RESP_24XX:
+ case CTIO_TYPE7:
+ case NOTIFY_ACK_TYPE:
+ qlt_response_pkt_all_vps(vha, (response_t *)pkt);
+ break;
case MARKER_TYPE:
/* Do nothing in this case, this check is to prevent it
* from falling into default case
case 0x14:
qla24xx_process_response_queue(vha, rsp);
break;
+ case 0x1C: /* ATIO queue updated */
+ qlt_24xx_process_atio_queue(vha);
+ break;
+ case 0x1D: /* ATIO and response queues updated */
+ qlt_24xx_process_atio_queue(vha);
+ qla24xx_process_response_queue(vha, rsp);
+ break;
default:
ql_dbg(ql_dbg_async, vha, 0x504f,
"Unrecognized interrupt type (%d).\n", stat * 0xff);
case 0x14:
qla24xx_process_response_queue(vha, rsp);
break;
+ case 0x1C: /* ATIO queue updated */
+ qlt_24xx_process_atio_queue(vha);
+ break;
+ case 0x1D: /* ATIO and response queues updated */
+ qlt_24xx_process_atio_queue(vha);
+ qla24xx_process_response_queue(vha, rsp);
+ break;
default:
ql_dbg(ql_dbg_async, vha, 0x5051,
"Unrecognized interrupt type (%d).\n", stat & 0xff);
qla2x00_free_irqs(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
- struct rsp_que *rsp = ha->rsp_q_map[0];
+ struct rsp_que *rsp;
+
+ /*
+ * We need to check that ha->rsp_q_map is valid in case we are called
+ * from a probe failure context.
+ */
+ if (!ha->rsp_q_map || !ha->rsp_q_map[0])
+ return;
+ rsp = ha->rsp_q_map[0];
if (ha->flags.msix_enabled)
qla24xx_disable_msix(ha);
* See LICENSE.qla2xxx for copyright and licensing details.
*/
#include "qla_def.h"
+#include "qla_target.h"
#include <linux/delay.h>
#include <linux/gfp.h>
ictrl = RD_REG_WORD(®->isp.ictrl);
}
ql_dbg(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1119,
- "MBX Command timeout for cmd %x.\n", command);
- ql_dbg(ql_dbg_mbx + ql_dbg_buffer, vha, 0x111a,
- "iocontrol=%x jiffies=%lx.\n", ictrl, jiffies);
- ql_dbg(ql_dbg_mbx + ql_dbg_buffer, vha, 0x111b,
- "mb[0] = 0x%x.\n", mb0);
+ "MBX Command timeout for cmd %x, iocontrol=%x jiffies=%lx "
+ "mb[0]=0x%x\n", command, ictrl, jiffies, mb0);
ql_dump_regs(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1019);
/*
CRB_NIU_XG_PAUSE_CTL_P1);
}
ql_log(ql_log_info, base_vha, 0x101c,
- "Mailbox cmd timeout occured, cmd=0x%x, "
+ "Mailbox cmd timeout occurred, cmd=0x%x, "
"mb[0]=0x%x, eeh_busy=0x%x. Scheduling ISP "
"abort.\n", command, mcp->mb[0],
ha->flags.eeh_busy);
CRB_NIU_XG_PAUSE_CTL_P1);
}
ql_log(ql_log_info, base_vha, 0x101e,
- "Mailbox cmd timeout occured, cmd=0x%x, "
+ "Mailbox cmd timeout occurred, cmd=0x%x, "
"mb[0]=0x%x. Scheduling ISP abort ",
command, mcp->mb[0]);
set_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x1022, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1022,
+ "Entered %s.\n", __func__);
if (MSW(risc_addr) || IS_FWI2_CAPABLE(ha)) {
mcp->mb[0] = MBC_LOAD_RISC_RAM_EXTENDED;
ql_dbg(ql_dbg_mbx, vha, 0x1023,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x1024, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1024,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x1025, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1025,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_EXECUTE_FIRMWARE;
mcp->out_mb = MBX_0;
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
if (IS_FWI2_CAPABLE(ha)) {
- ql_dbg(ql_dbg_mbx, vha, 0x1027,
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1027,
"Done exchanges=%x.\n", mcp->mb[1]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x1028, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1028,
+ "Done %s.\n", __func__);
}
}
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
- ql_dbg(ql_dbg_mbx, vha, 0x1029, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1029,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_GET_FIRMWARE_VERSION;
mcp->out_mb = MBX_0;
ha->fw_attributes_h = mcp->mb[15];
ha->fw_attributes_ext[0] = mcp->mb[16];
ha->fw_attributes_ext[1] = mcp->mb[17];
- ql_dbg(ql_dbg_mbx, vha, 0x1139,
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1139,
"%s: FW_attributes Upper: 0x%x, Lower: 0x%x.\n",
__func__, mcp->mb[15], mcp->mb[6]);
} else
- ql_dbg(ql_dbg_mbx, vha, 0x112f,
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x112f,
"%s: FwAttributes [Upper] invalid, MB6:%04x\n",
__func__, mcp->mb[6]);
}
ql_dbg(ql_dbg_mbx, vha, 0x102a, "Failed=%x.\n", rval);
} else {
/*EMPTY*/
- ql_dbg(ql_dbg_mbx, vha, 0x102b, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x102b,
+ "Done %s.\n", __func__);
}
return rval;
}
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x102c, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x102c,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_GET_FIRMWARE_OPTION;
mcp->out_mb = MBX_0;
fwopts[2] = mcp->mb[2];
fwopts[3] = mcp->mb[3];
- ql_dbg(ql_dbg_mbx, vha, 0x102e, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x102e,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x102f, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x102f,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_SET_FIRMWARE_OPTION;
mcp->mb[1] = fwopts[1];
"Failed=%x (%x/%x).\n", rval, mcp->mb[0], mcp->mb[1]);
} else {
/*EMPTY*/
- ql_dbg(ql_dbg_mbx, vha, 0x1031, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1031,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x1032, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1032,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_MAILBOX_REGISTER_TEST;
mcp->mb[1] = 0xAAAA;
ql_dbg(ql_dbg_mbx, vha, 0x1033, "Failed=%x.\n", rval);
} else {
/*EMPTY*/
- ql_dbg(ql_dbg_mbx, vha, 0x1034, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1034,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x1035, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1035,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_VERIFY_CHECKSUM;
mcp->out_mb = MBX_0;
"Failed=%x chm sum=%x.\n", rval, IS_FWI2_CAPABLE(vha->hw) ?
(mcp->mb[2] << 16) | mcp->mb[1] : mcp->mb[1]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x1037, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1037,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x1038, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1038,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_IOCB_COMMAND_A64;
mcp->mb[1] = 0;
/* Mask reserved bits. */
sts_entry->entry_status &=
IS_FWI2_CAPABLE(vha->hw) ? RF_MASK_24XX : RF_MASK;
- ql_dbg(ql_dbg_mbx, vha, 0x103a, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x103a,
+ "Done %s.\n", __func__);
}
return rval;
struct req_que *req = vha->req;
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
- ql_dbg(ql_dbg_mbx, vha, 0x103b, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x103b,
+ "Entered %s.\n", __func__);
spin_lock_irqsave(&ha->hardware_lock, flags);
for (handle = 1; handle < MAX_OUTSTANDING_COMMANDS; handle++) {
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x103c, "Failed=%x.\n", rval);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x103d, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x103d,
+ "Done %s.\n", __func__);
}
return rval;
l = l;
vha = fcport->vha;
- ql_dbg(ql_dbg_mbx, vha, 0x103e, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x103e,
+ "Entered %s.\n", __func__);
req = vha->hw->req_q_map[0];
rsp = req->rsp;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
- ql_dbg(ql_dbg_mbx, vha, 0x103f, "Failed=%x.\n", rval);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x103f,
+ "Failed=%x.\n", rval);
}
/* Issue marker IOCB. */
ql_dbg(ql_dbg_mbx, vha, 0x1040,
"Failed to issue marker IOCB (%x).\n", rval2);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x1041, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1041,
+ "Done %s.\n", __func__);
}
return rval;
vha = fcport->vha;
- ql_dbg(ql_dbg_mbx, vha, 0x1042, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1042,
+ "Entered %s.\n", __func__);
req = vha->hw->req_q_map[0];
rsp = req->rsp;
ql_dbg(ql_dbg_mbx, vha, 0x1044,
"Failed to issue marker IOCB (%x).\n", rval2);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x1045, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1045,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x1046, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1046,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_GET_ADAPTER_LOOP_ID;
mcp->mb[9] = vha->vp_idx;
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x1047, "Failed=%x.\n", rval);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x1048, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1048,
+ "Done %s.\n", __func__);
if (IS_CNA_CAPABLE(vha->hw)) {
vha->fcoe_vlan_id = mcp->mb[9] & 0xfff;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x1049, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1049,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_GET_RETRY_COUNT;
mcp->out_mb = MBX_0;
*tov = ratov;
}
- ql_dbg(ql_dbg_mbx, vha, 0x104b,
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x104b,
"Done %s mb3=%d ratov=%d.\n", __func__, mcp->mb[3], ratov);
}
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
- ql_dbg(ql_dbg_mbx, vha, 0x104c, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x104c,
+ "Entered %s.\n", __func__);
if (IS_QLA82XX(ha) && ql2xdbwr)
qla82xx_wr_32(ha, ha->nxdb_wr_ptr,
rval, mcp->mb[0], mcp->mb[1], mcp->mb[2], mcp->mb[3]);
} else {
/*EMPTY*/
- ql_dbg(ql_dbg_mbx, vha, 0x104e, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x104e,
+ "Done %s.\n", __func__);
+ }
+
+ return rval;
+}
+
+/*
+ * qla2x00_get_node_name_list
+ * Issue get node name list mailbox command, kmalloc()
+ * and return the resulting list. Caller must kfree() it!
+ *
+ * Input:
+ * ha = adapter state pointer.
+ * out_data = resulting list
+ * out_len = length of the resulting list
+ *
+ * Returns:
+ * qla2x00 local function return status code.
+ *
+ * Context:
+ * Kernel context.
+ */
+int
+qla2x00_get_node_name_list(scsi_qla_host_t *vha, void **out_data, int *out_len)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_port_24xx_data *list = NULL;
+ void *pmap;
+ mbx_cmd_t mc;
+ dma_addr_t pmap_dma;
+ ulong dma_size;
+ int rval, left;
+
+ left = 1;
+ while (left > 0) {
+ dma_size = left * sizeof(*list);
+ pmap = dma_alloc_coherent(&ha->pdev->dev, dma_size,
+ &pmap_dma, GFP_KERNEL);
+ if (!pmap) {
+ ql_log(ql_log_warn, vha, 0x113f,
+ "%s(%ld): DMA Alloc failed of %ld\n",
+ __func__, vha->host_no, dma_size);
+ rval = QLA_MEMORY_ALLOC_FAILED;
+ goto out;
+ }
+
+ mc.mb[0] = MBC_PORT_NODE_NAME_LIST;
+ mc.mb[1] = BIT_1 | BIT_3;
+ mc.mb[2] = MSW(pmap_dma);
+ mc.mb[3] = LSW(pmap_dma);
+ mc.mb[6] = MSW(MSD(pmap_dma));
+ mc.mb[7] = LSW(MSD(pmap_dma));
+ mc.mb[8] = dma_size;
+ mc.out_mb = MBX_0|MBX_1|MBX_2|MBX_3|MBX_6|MBX_7|MBX_8;
+ mc.in_mb = MBX_0|MBX_1;
+ mc.tov = 30;
+ mc.flags = MBX_DMA_IN;
+
+ rval = qla2x00_mailbox_command(vha, &mc);
+ if (rval != QLA_SUCCESS) {
+ if ((mc.mb[0] == MBS_COMMAND_ERROR) &&
+ (mc.mb[1] == 0xA)) {
+ left += le16_to_cpu(mc.mb[2]) /
+ sizeof(struct qla_port_24xx_data);
+ goto restart;
+ }
+ goto out_free;
+ }
+
+ left = 0;
+
+ list = kzalloc(dma_size, GFP_KERNEL);
+ if (!list) {
+ ql_log(ql_log_warn, vha, 0x1140,
+ "%s(%ld): failed to allocate node names list "
+ "structure.\n", __func__, vha->host_no);
+ rval = QLA_MEMORY_ALLOC_FAILED;
+ goto out_free;
+ }
+
+ memcpy(list, pmap, dma_size);
+restart:
+ dma_free_coherent(&ha->pdev->dev, dma_size, pmap, pmap_dma);
}
+ *out_data = list;
+ *out_len = dma_size;
+
+out:
+ return rval;
+
+out_free:
+ dma_free_coherent(&ha->pdev->dev, dma_size, pmap, pmap_dma);
return rval;
}
dma_addr_t pd_dma;
struct qla_hw_data *ha = vha->hw;
- ql_dbg(ql_dbg_mbx, vha, 0x104f, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x104f,
+ "Entered %s.\n", __func__);
pd24 = NULL;
pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &pd_dma);
fcport->port_type = FCT_INITIATOR;
else
fcport->port_type = FCT_TARGET;
+
+ /* Passback COS information. */
+ fcport->supported_classes = (pd24->flags & PDF_CLASS_2) ?
+ FC_COS_CLASS2 : FC_COS_CLASS3;
+
+ if (pd24->prli_svc_param_word_3[0] & BIT_7)
+ fcport->flags |= FCF_CONF_COMP_SUPPORTED;
} else {
uint64_t zero = 0;
"Failed=%x mb[0]=%x mb[1]=%x.\n", rval,
mcp->mb[0], mcp->mb[1]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x1053, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1053,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x1054, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1054,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_GET_FIRMWARE_STATE;
mcp->out_mb = MBX_0;
ql_dbg(ql_dbg_mbx, vha, 0x1055, "Failed=%x.\n", rval);
} else {
/*EMPTY*/
- ql_dbg(ql_dbg_mbx, vha, 0x1056, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1056,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x1057, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1057,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_GET_PORT_NAME;
mcp->mb[9] = vha->vp_idx;
name[7] = LSB(mcp->mb[7]);
}
- ql_dbg(ql_dbg_mbx, vha, 0x1059, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1059,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x105a, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x105a,
+ "Entered %s.\n", __func__);
if (IS_CNA_CAPABLE(vha->hw)) {
/* Logout across all FCFs. */
ql_dbg(ql_dbg_mbx, vha, 0x105b, "Failed=%x.\n", rval);
} else {
/*EMPTY*/
- ql_dbg(ql_dbg_mbx, vha, 0x105c, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x105c,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x105d, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x105d,
+ "Entered %s.\n", __func__);
- ql_dbg(ql_dbg_mbx, vha, 0x105e,
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x105e,
"Retry cnt=%d ratov=%d total tov=%d.\n",
vha->hw->retry_count, vha->hw->login_timeout, mcp->tov);
rval, mcp->mb[0], mcp->mb[1]);
} else {
/*EMPTY*/
- ql_dbg(ql_dbg_mbx, vha, 0x1060, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1060,
+ "Done %s.\n", __func__);
}
return rval;
struct req_que *req;
struct rsp_que *rsp;
- ql_dbg(ql_dbg_mbx, vha, 0x1061, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1061,
+ "Entered %s.\n", __func__);
if (ha->flags.cpu_affinity_enabled)
req = ha->req_q_map[0];
break;
}
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x1066, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1066,
+ "Done %s.\n", __func__);
iop[0] = le32_to_cpu(lg->io_parameter[0]);
mb[10] |= BIT_0; /* Class 2. */
if (lg->io_parameter[9] || lg->io_parameter[10])
mb[10] |= BIT_1; /* Class 3. */
+ if (lg->io_parameter[0] & __constant_cpu_to_le32(BIT_7))
+ mb[10] |= BIT_7; /* Confirmed Completion
+ * Allowed
+ */
}
dma_pool_free(ha->s_dma_pool, lg, lg_dma);
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
- ql_dbg(ql_dbg_mbx, vha, 0x1067, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1067,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_LOGIN_FABRIC_PORT;
mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
rval, mcp->mb[0], mcp->mb[1], mcp->mb[2]);
} else {
/*EMPTY*/
- ql_dbg(ql_dbg_mbx, vha, 0x1069, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1069,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
- ql_dbg(ql_dbg_mbx, vha, 0x106a, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x106a,
+ "Entered %s.\n", __func__);
if (IS_FWI2_CAPABLE(ha))
return qla24xx_login_fabric(vha, fcport->loop_id,
rval, mcp->mb[0], mcp->mb[1], mcp->mb[6], mcp->mb[7]);
} else {
/*EMPTY*/
- ql_dbg(ql_dbg_mbx, vha, 0x106c, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x106c,
+ "Done %s.\n", __func__);
}
return (rval);
struct req_que *req;
struct rsp_que *rsp;
- ql_dbg(ql_dbg_mbx, vha, 0x106d, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x106d,
+ "Entered %s.\n", __func__);
lg = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &lg_dma);
if (lg == NULL) {
le32_to_cpu(lg->io_parameter[1]));
} else {
/*EMPTY*/
- ql_dbg(ql_dbg_mbx, vha, 0x1072, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1072,
+ "Done %s.\n", __func__);
}
dma_pool_free(ha->s_dma_pool, lg, lg_dma);
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x1073, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1073,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_LOGOUT_FABRIC_PORT;
mcp->out_mb = MBX_1|MBX_0;
"Failed=%x mb[1]=%x.\n", rval, mcp->mb[1]);
} else {
/*EMPTY*/
- ql_dbg(ql_dbg_mbx, vha, 0x1075, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1075,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x1076, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1076,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_LIP_FULL_LOGIN;
mcp->mb[1] = IS_FWI2_CAPABLE(vha->hw) ? BIT_3 : 0;
ql_dbg(ql_dbg_mbx, vha, 0x1077, "Failed=%x.\n", rval);
} else {
/*EMPTY*/
- ql_dbg(ql_dbg_mbx, vha, 0x1078, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1078,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x1079, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1079,
+ "Entered %s.\n", __func__);
if (id_list == NULL)
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx, vha, 0x107a, "Failed=%x.\n", rval);
} else {
*entries = mcp->mb[1];
- ql_dbg(ql_dbg_mbx, vha, 0x107b, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x107b,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x107c, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x107c,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_GET_RESOURCE_COUNTS;
mcp->out_mb = MBX_0;
ql_dbg(ql_dbg_mbx, vha, 0x107d,
"Failed mb[0]=%x.\n", mcp->mb[0]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x107e,
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x107e,
"Done %s mb1=%x mb2=%x mb3=%x mb6=%x mb7=%x mb10=%x "
"mb11=%x mb12=%x.\n", __func__, mcp->mb[1], mcp->mb[2],
mcp->mb[3], mcp->mb[6], mcp->mb[7], mcp->mb[10],
dma_addr_t pmap_dma;
struct qla_hw_data *ha = vha->hw;
- ql_dbg(ql_dbg_mbx, vha, 0x107f, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x107f,
+ "Entered %s.\n", __func__);
pmap = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &pmap_dma);
if (pmap == NULL) {
rval = qla2x00_mailbox_command(vha, mcp);
if (rval == QLA_SUCCESS) {
- ql_dbg(ql_dbg_mbx, vha, 0x1081,
+ ql_dbg(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1081,
"mb0/mb1=%x/%X FC/AL position map size (%x).\n",
mcp->mb[0], mcp->mb[1], (unsigned)pmap[0]);
ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x111d,
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1082, "Failed=%x.\n", rval);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x1083, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1083,
+ "Done %s.\n", __func__);
}
return rval;
uint32_t *siter, *diter, dwords;
struct qla_hw_data *ha = vha->hw;
- ql_dbg(ql_dbg_mbx, vha, 0x1084, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1084,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_GET_LINK_STATUS;
mcp->mb[2] = MSW(stats_dma);
rval = QLA_FUNCTION_FAILED;
} else {
/* Copy over data -- firmware data is LE. */
- ql_dbg(ql_dbg_mbx, vha, 0x1086, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1086,
+ "Done %s.\n", __func__);
dwords = offsetof(struct link_statistics, unused1) / 4;
siter = diter = &stats->link_fail_cnt;
while (dwords--)
mbx_cmd_t *mcp = &mc;
uint32_t *siter, *diter, dwords;
- ql_dbg(ql_dbg_mbx, vha, 0x1088, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1088,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_GET_LINK_PRIV_STATS;
mcp->mb[2] = MSW(stats_dma);
"Failed mb[0]=%x.\n", mcp->mb[0]);
rval = QLA_FUNCTION_FAILED;
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x108a, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x108a,
+ "Done %s.\n", __func__);
/* Copy over data -- firmware data is LE. */
dwords = sizeof(struct link_statistics) / 4;
siter = diter = &stats->link_fail_cnt;
struct qla_hw_data *ha = vha->hw;
struct req_que *req = vha->req;
- ql_dbg(ql_dbg_mbx, vha, 0x108c, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x108c,
+ "Entered %s.\n", __func__);
spin_lock_irqsave(&ha->hardware_lock, flags);
for (handle = 1; handle < MAX_OUTSTANDING_COMMANDS; handle++) {
abt->port_id[0] = fcport->d_id.b.al_pa;
abt->port_id[1] = fcport->d_id.b.area;
abt->port_id[2] = fcport->d_id.b.domain;
- abt->vp_index = fcport->vp_idx;
+ abt->vp_index = fcport->vha->vp_idx;
abt->req_que_no = cpu_to_le16(req->id);
le16_to_cpu(abt->nport_handle));
rval = QLA_FUNCTION_FAILED;
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x1091, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1091,
+ "Done %s.\n", __func__);
}
dma_pool_free(ha->s_dma_pool, abt, abt_dma);
ha = vha->hw;
req = vha->req;
- ql_dbg(ql_dbg_mbx, vha, 0x1092, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1092,
+ "Entered %s.\n", __func__);
if (ha->flags.cpu_affinity_enabled)
rsp = ha->rsp_q_map[tag + 1];
tsk->p.tsk.port_id[0] = fcport->d_id.b.al_pa;
tsk->p.tsk.port_id[1] = fcport->d_id.b.area;
tsk->p.tsk.port_id[2] = fcport->d_id.b.domain;
- tsk->p.tsk.vp_index = fcport->vp_idx;
+ tsk->p.tsk.vp_index = fcport->vha->vp_idx;
if (type == TCF_LUN_RESET) {
int_to_scsilun(l, &tsk->p.tsk.lun);
host_to_fcp_swap((uint8_t *)&tsk->p.tsk.lun,
} else if (le16_to_cpu(sts->scsi_status) &
SS_RESPONSE_INFO_LEN_VALID) {
if (le32_to_cpu(sts->rsp_data_len) < 4) {
- ql_dbg(ql_dbg_mbx, vha, 0x1097,
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1097,
"Ignoring inconsistent data length -- not enough "
"response info (%d).\n",
le32_to_cpu(sts->rsp_data_len));
ql_dbg(ql_dbg_mbx, vha, 0x1099,
"Failed to issue marker IOCB (%x).\n", rval2);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x109a, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x109a,
+ "Done %s.\n", __func__);
}
dma_pool_free(ha->s_dma_pool, tsk, tsk_dma);
if (!IS_QLA23XX(ha) && !IS_FWI2_CAPABLE(ha))
return QLA_FUNCTION_FAILED;
- ql_dbg(ql_dbg_mbx, vha, 0x109b, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x109b,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_GEN_SYSTEM_ERROR;
mcp->out_mb = MBX_0;
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x109c, "Failed=%x.\n", rval);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x109d, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x109d,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x109e, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x109e,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_SERDES_PARAMS;
mcp->mb[1] = BIT_0;
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
/*EMPTY*/
- ql_dbg(ql_dbg_mbx, vha, 0x10a0, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10a0,
+ "Done %s.\n", __func__);
}
return rval;
if (!IS_FWI2_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
- ql_dbg(ql_dbg_mbx, vha, 0x10a1, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10a1,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_STOP_FIRMWARE;
mcp->mb[1] = 0;
if (mcp->mb[0] == MBS_INVALID_COMMAND)
rval = QLA_INVALID_COMMAND;
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10a3, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10a3,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x10a4, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10a4,
+ "Entered %s.\n", __func__);
if (!IS_FWI2_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10a6, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10a6,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x10a7, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10a7,
+ "Entered %s.\n", __func__);
if (!IS_FWI2_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10a9, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10a9,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x10aa, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10aa,
+ "Entered %s.\n", __func__);
if (!IS_QLA25XX(vha->hw) && !IS_QLA81XX(vha->hw) &&
!IS_QLA83XX(vha->hw))
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10ac, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10ac,
+ "Done %s.\n", __func__);
if (mb)
memcpy(mb, mcp->mb, 8 * sizeof(*mb));
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x10ad, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10ad,
+ "Entered %s.\n", __func__);
if (!IS_FWI2_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10af, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10af,
+ "Done %s.\n", __func__);
if (wr)
*wr = (uint64_t) mcp->mb[5] << 48 |
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x10b0, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10b0,
+ "Entered %s.\n", __func__);
if (!IS_IIDMA_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10b1, "Failed=%x.\n", rval);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10b2, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10b2,
+ "Done %s.\n", __func__);
if (port_speed)
*port_speed = mcp->mb[3];
}
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x10b3, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10b3,
+ "Entered %s.\n", __func__);
if (!IS_IIDMA_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
}
if (rval != QLA_SUCCESS) {
- ql_dbg(ql_dbg_mbx, vha, 0x10b4, "Failed=%x.\n", rval);
+ ql_dbg(ql_dbg_mbx, vha, 0x10b4,
+ "Failed=%x.\n", rval);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10b5, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10b5,
+ "Done %s.\n", __func__);
}
return rval;
scsi_qla_host_t *vp;
unsigned long flags;
- ql_dbg(ql_dbg_mbx, vha, 0x10b6, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10b6,
+ "Entered %s.\n", __func__);
if (rptid_entry->entry_status != 0)
return;
if (rptid_entry->format == 0) {
- ql_dbg(ql_dbg_mbx, vha, 0x10b7,
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10b7,
"Format 0 : Number of VPs setup %d, number of "
"VPs acquired %d.\n",
MSB(le16_to_cpu(rptid_entry->vp_count)),
LSB(le16_to_cpu(rptid_entry->vp_count)));
- ql_dbg(ql_dbg_mbx, vha, 0x10b8,
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10b8,
"Primary port id %02x%02x%02x.\n",
rptid_entry->port_id[2], rptid_entry->port_id[1],
rptid_entry->port_id[0]);
} else if (rptid_entry->format == 1) {
vp_idx = LSB(stat);
- ql_dbg(ql_dbg_mbx, vha, 0x10b9,
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10b9,
"Format 1: VP[%d] enabled - status %d - with "
"port id %02x%02x%02x.\n", vp_idx, MSB(stat),
rptid_entry->port_id[2], rptid_entry->port_id[1],
/* This can be called by the parent */
- ql_dbg(ql_dbg_mbx, vha, 0x10bb, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10bb,
+ "Entered %s.\n", __func__);
vpmod = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &vpmod_dma);
if (!vpmod) {
vpmod->vp_count = 1;
vpmod->vp_index1 = vha->vp_idx;
vpmod->options_idx1 = BIT_3|BIT_4|BIT_5;
+
+ qlt_modify_vp_config(vha, vpmod);
+
memcpy(vpmod->node_name_idx1, vha->node_name, WWN_SIZE);
memcpy(vpmod->port_name_idx1, vha->port_name, WWN_SIZE);
vpmod->entry_count = 1;
rval = QLA_FUNCTION_FAILED;
} else {
/* EMPTY */
- ql_dbg(ql_dbg_mbx, vha, 0x10c0, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10c0,
+ "Done %s.\n", __func__);
fc_vport_set_state(vha->fc_vport, FC_VPORT_INITIALIZING);
}
dma_pool_free(ha->s_dma_pool, vpmod, vpmod_dma);
int vp_index = vha->vp_idx;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
- ql_dbg(ql_dbg_mbx, vha, 0x10c1,
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10c1,
"Entered %s enabling index %d.\n", __func__, vp_index);
if (vp_index == 0 || vp_index >= ha->max_npiv_vports)
le16_to_cpu(vce->comp_status));
rval = QLA_FUNCTION_FAILED;
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10c6, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10c6,
+ "Done %s.\n", __func__);
}
dma_pool_free(ha->s_dma_pool, vce, vce_dma);
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x10c7, "Entered %s.\n", __func__);
-
- /*
- * This command is implicitly executed by firmware during login for the
- * physical hosts
- */
- if (vp_idx == 0)
- return QLA_FUNCTION_FAILED;
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10c7,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_SEND_CHANGE_REQUEST;
mcp->mb[1] = format;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x1009, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1009,
+ "Entered %s.\n", __func__);
if (MSW(addr) || IS_FWI2_CAPABLE(vha->hw)) {
mcp->mb[0] = MBC_DUMP_RISC_RAM_EXTENDED;
ql_dbg(ql_dbg_mbx, vha, 0x1008,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x1007, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1007,
+ "Done %s.\n", __func__);
}
return rval;
unsigned long flags;
struct qla_hw_data *ha = vha->hw;
- ql_dbg(ql_dbg_mbx, vha, 0x10c8, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10c8,
+ "Entered %s.\n", __func__);
mn = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &mn_dma);
if (mn == NULL) {
status[0] = le16_to_cpu(mn->p.rsp.comp_status);
status[1] = status[0] == CS_VCS_CHIP_FAILURE ?
le16_to_cpu(mn->p.rsp.failure_code) : 0;
- ql_dbg(ql_dbg_mbx, vha, 0x10ce,
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10ce,
"cs=%x fc=%x.\n", status[0], status[1]);
if (status[0] != CS_COMPLETE) {
retry = 1;
}
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10d0,
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10d0,
"Firmware updated to %x.\n",
le32_to_cpu(mn->p.rsp.fw_ver));
dma_pool_free(ha->s_dma_pool, mn, mn_dma);
if (rval != QLA_SUCCESS) {
- ql_dbg(ql_dbg_mbx, vha, 0x10d1, "Failed=%x.\n", rval);
+ ql_dbg(ql_dbg_mbx, vha, 0x10d1,
+ "Failed=%x.\n", rval);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10d2, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10d2,
+ "Done %s.\n", __func__);
}
return rval;
struct device_reg_25xxmq __iomem *reg;
struct qla_hw_data *ha = vha->hw;
- ql_dbg(ql_dbg_mbx, vha, 0x10d3, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10d3,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_INITIALIZE_MULTIQ;
mcp->mb[1] = req->options;
ql_dbg(ql_dbg_mbx, vha, 0x10d4,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10d5, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10d5,
+ "Done %s.\n", __func__);
}
return rval;
struct device_reg_25xxmq __iomem *reg;
struct qla_hw_data *ha = vha->hw;
- ql_dbg(ql_dbg_mbx, vha, 0x10d6, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10d6,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_INITIALIZE_MULTIQ;
mcp->mb[1] = rsp->options;
ql_dbg(ql_dbg_mbx, vha, 0x10d7,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10d8, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10d8,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x10d9, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10d9,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_IDC_ACK;
memcpy(&mcp->mb[1], mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
ql_dbg(ql_dbg_mbx, vha, 0x10da,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10db, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10db,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x10dc, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10dc,
+ "Entered %s.\n", __func__);
if (!IS_QLA81XX(vha->hw) && !IS_QLA83XX(vha->hw))
return QLA_FUNCTION_FAILED;
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10de, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10de,
+ "Done %s.\n", __func__);
*sector_size = mcp->mb[1];
}
if (!IS_QLA81XX(vha->hw) && !IS_QLA83XX(vha->hw))
return QLA_FUNCTION_FAILED;
- ql_dbg(ql_dbg_mbx, vha, 0x10df, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10df,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_FLASH_ACCESS_CTRL;
mcp->mb[1] = enable ? FAC_OPT_CMD_WRITE_ENABLE :
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10e1, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10e1,
+ "Done %s.\n", __func__);
}
return rval;
if (!IS_QLA81XX(vha->hw) && !IS_QLA83XX(vha->hw))
return QLA_FUNCTION_FAILED;
- ql_dbg(ql_dbg_mbx, vha, 0x10e2, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10e2,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_FLASH_ACCESS_CTRL;
mcp->mb[1] = FAC_OPT_CMD_ERASE_SECTOR;
"Failed=%x mb[0]=%x mb[1]=%x mb[2]=%x.\n",
rval, mcp->mb[0], mcp->mb[1], mcp->mb[2]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10e4, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10e4,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x10e5, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10e5,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_RESTART_MPI_FW;
mcp->out_mb = MBX_0;
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10e7, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10e7,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
- ql_dbg(ql_dbg_mbx, vha, 0x10e8, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10e8,
+ "Entered %s.\n", __func__);
if (!IS_FWI2_CAPABLE(ha))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx, vha, 0x10e9,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10ea, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10ea,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
- ql_dbg(ql_dbg_mbx, vha, 0x10eb, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10eb,
+ "Entered %s.\n", __func__);
if (!IS_FWI2_CAPABLE(ha))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx, vha, 0x10ec,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10ed, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10ed,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x10ee, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10ee,
+ "Entered %s.\n", __func__);
if (!IS_CNA_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
"Failed=%x mb[0]=%x mb[1]=%x mb[2]=%x.\n",
rval, mcp->mb[0], mcp->mb[1], mcp->mb[2]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10f0, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10f0,
+ "Done %s.\n", __func__);
*actual_size = mcp->mb[2] << 2;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x10f1, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10f1,
+ "Entered %s.\n", __func__);
if (!IS_CNA_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
"Failed=%x mb[0]=%x mb[1]=%x mb[2]=%x.\n",
rval, mcp->mb[0], mcp->mb[1], mcp->mb[2]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10f3, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10f3,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x10f4, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10f4,
+ "Entered %s.\n", __func__);
if (!IS_FWI2_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx, vha, 0x10f5,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10f6, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10f6,
+ "Done %s.\n", __func__);
*data = mcp->mb[3] << 16 | mcp->mb[2];
}
mbx_cmd_t *mcp = &mc;
uint32_t iter_cnt = 0x1;
- ql_dbg(ql_dbg_mbx, vha, 0x10f7, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10f7,
+ "Entered %s.\n", __func__);
memset(mcp->mb, 0 , sizeof(mcp->mb));
mcp->mb[0] = MBC_DIAGNOSTIC_LOOP_BACK;
"mb[19]=%x.\n", rval, mcp->mb[0], mcp->mb[1], mcp->mb[2],
mcp->mb[3], mcp->mb[18], mcp->mb[19]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10f9, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10f9,
+ "Done %s.\n", __func__);
}
/* Copy mailbox information */
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
- ql_dbg(ql_dbg_mbx, vha, 0x10fa, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10fa,
+ "Entered %s.\n", __func__);
memset(mcp->mb, 0 , sizeof(mcp->mb));
mcp->mb[0] = MBC_DIAGNOSTIC_ECHO;
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10fc, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10fc,
+ "Done %s.\n", __func__);
}
/* Copy mailbox information */
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x10fd,
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10fd,
"Entered %s enable_diag=%d.\n", __func__, enable_diagnostic);
mcp->mb[0] = MBC_ISP84XX_RESET;
if (rval != QLA_SUCCESS)
ql_dbg(ql_dbg_mbx, vha, 0x10fe, "Failed=%x.\n", rval);
else
- ql_dbg(ql_dbg_mbx, vha, 0x10ff, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10ff,
+ "Done %s.\n", __func__);
return rval;
}
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x1100, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1100,
+ "Entered %s.\n", __func__);
if (!IS_FWI2_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx, vha, 0x1101,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x1102, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1102,
+ "Done %s.\n", __func__);
}
return rval;
rval = QLA_SUCCESS;
- ql_dbg(ql_dbg_mbx, vha, 0x1103, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1103,
+ "Entered %s.\n", __func__);
clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
ql_dbg(ql_dbg_mbx, vha, 0x1104,
"Failed=%x mb[0]=%x.\n", rval, mb[0]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x1105, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1105,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
- ql_dbg(ql_dbg_mbx, vha, 0x1106, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1106,
+ "Entered %s.\n", __func__);
if (!IS_FWI2_CAPABLE(ha))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx, vha, 0x1107,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x1108, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1108,
+ "Done %s.\n", __func__);
if (mcp->mb[1] != 0x7)
ha->link_data_rate = mcp->mb[1];
}
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
- ql_dbg(ql_dbg_mbx, vha, 0x1109, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1109,
+ "Entered %s.\n", __func__);
if (!IS_QLA81XX(ha) && !IS_QLA83XX(ha))
return QLA_FUNCTION_FAILED;
/* Copy all bits to preserve original value */
memcpy(mb, &mcp->mb[1], sizeof(uint16_t) * 4);
- ql_dbg(ql_dbg_mbx, vha, 0x110b, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x110b,
+ "Done %s.\n", __func__);
}
return rval;
}
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x110c, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x110c,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_SET_PORT_CONFIG;
/* Copy all bits to preserve original setting */
ql_dbg(ql_dbg_mbx, vha, 0x110d,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else
- ql_dbg(ql_dbg_mbx, vha, 0x110e, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x110e,
+ "Done %s.\n", __func__);
return rval;
}
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
- ql_dbg(ql_dbg_mbx, vha, 0x110f, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x110f,
+ "Entered %s.\n", __func__);
if (!IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha))
return QLA_FUNCTION_FAILED;
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10cd, "Failed=%x.\n", rval);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x10cc, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10cc,
+ "Done %s.\n", __func__);
}
return rval;
uint8_t byte;
struct qla_hw_data *ha = vha->hw;
- ql_dbg(ql_dbg_mbx, vha, 0x10ca, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10ca,
+ "Entered %s.\n", __func__);
/* Integer part */
rval = qla2x00_read_sfp(vha, 0, &byte, 0x98, 0x01, 1, BIT_13|BIT_0);
}
*frac = (byte >> 6) * 25;
- ql_dbg(ql_dbg_mbx, vha, 0x1018, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1018,
+ "Done %s.\n", __func__);
fail:
return rval;
}
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x1017, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1017,
+ "Entered %s.\n", __func__);
if (!IS_FWI2_CAPABLE(ha))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx, vha, 0x1016,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x100e, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x100e,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- ql_dbg(ql_dbg_mbx, vha, 0x100d, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x100d,
+ "Entered %s.\n", __func__);
if (!IS_QLA82XX(ha))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx, vha, 0x100c,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x100b, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x100b,
+ "Done %s.\n", __func__);
}
return rval;
mbx_cmd_t *mcp = &mc;
int rval = QLA_FUNCTION_FAILED;
- ql_dbg(ql_dbg_mbx, vha, 0x111f, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x111f,
+ "Entered %s.\n", __func__);
memset(mcp->mb, 0 , sizeof(mcp->mb));
mcp->mb[0] = LSW(MBC_DIAGNOSTIC_MINIDUMP_TEMPLATE);
(mcp->mb[1] << 16) | mcp->mb[0],
(mcp->mb[3] << 16) | mcp->mb[2]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x1121, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1121,
+ "Done %s.\n", __func__);
ha->md_template_size = ((mcp->mb[3] << 16) | mcp->mb[2]);
if (!ha->md_template_size) {
ql_dbg(ql_dbg_mbx, vha, 0x1122,
mbx_cmd_t *mcp = &mc;
int rval = QLA_FUNCTION_FAILED;
- ql_dbg(ql_dbg_mbx, vha, 0x1123, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1123,
+ "Entered %s.\n", __func__);
ha->md_tmplt_hdr = dma_alloc_coherent(&ha->pdev->dev,
ha->md_template_size, &ha->md_tmplt_hdr_dma, GFP_KERNEL);
((mcp->mb[1] << 16) | mcp->mb[0]),
((mcp->mb[3] << 16) | mcp->mb[2]));
} else
- ql_dbg(ql_dbg_mbx, vha, 0x1126, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1126,
+ "Done %s.\n", __func__);
return rval;
}
if (!IS_QLA81XX(ha) && !IS_QLA8031(ha))
return QLA_FUNCTION_FAILED;
- ql_dbg(ql_dbg_mbx, vha, 0x1133, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1133,
+ "Entered %s.\n", __func__);
memset(mcp, 0, sizeof(mbx_cmd_t));
mcp->mb[0] = MBC_SET_LED_CONFIG;
ql_dbg(ql_dbg_mbx, vha, 0x1134,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x1135, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1135,
+ "Done %s.\n", __func__);
}
return rval;
if (!IS_QLA81XX(ha) && !IS_QLA8031(ha))
return QLA_FUNCTION_FAILED;
- ql_dbg(ql_dbg_mbx, vha, 0x1136, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1136,
+ "Entered %s.\n", __func__);
memset(mcp, 0, sizeof(mbx_cmd_t));
mcp->mb[0] = MBC_GET_LED_CONFIG;
led_cfg[4] = mcp->mb[5];
led_cfg[5] = mcp->mb[6];
}
- ql_dbg(ql_dbg_mbx, vha, 0x1138, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1138,
+ "Done %s.\n", __func__);
}
return rval;
if (!IS_QLA82XX(ha))
return QLA_FUNCTION_FAILED;
- ql_dbg(ql_dbg_mbx, vha, 0x1127,
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1127,
"Entered %s.\n", __func__);
memset(mcp, 0, sizeof(mbx_cmd_t));
ql_dbg(ql_dbg_mbx, vha, 0x1128,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x1129,
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1129,
"Done %s.\n", __func__);
}
if (!IS_QLA83XX(ha))
return QLA_FUNCTION_FAILED;
- ql_dbg(ql_dbg_mbx, vha, 0x1130, "Entered %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1130,
+ "Entered %s.\n", __func__);
mcp->mb[0] = MBC_WRITE_REMOTE_REG;
mcp->mb[1] = LSW(reg);
ql_dbg(ql_dbg_mbx, vha, 0x1131,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
- ql_dbg(ql_dbg_mbx, vha, 0x1132,
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1132,
"Done %s.\n", __func__);
}
mbx_cmd_t *mcp = &mc;
if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
- ql_dbg(ql_dbg_mbx, vha, 0x113b,
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x113b,
"Implicit LOGO Unsupported.\n");
return QLA_FUNCTION_FAILED;
}
- ql_dbg(ql_dbg_mbx, vha, 0x113c, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x113c,
+ "Entering %s.\n", __func__);
/* Perform Implicit LOGO. */
mcp->mb[0] = MBC_PORT_LOGOUT;
ql_dbg(ql_dbg_mbx, vha, 0x113d,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
else
- ql_dbg(ql_dbg_mbx, vha, 0x113e, "Done %s.\n", __func__);
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x113e,
+ "Done %s.\n", __func__);
return rval;
}
*/
#include "qla_def.h"
#include "qla_gbl.h"
+#include "qla_target.h"
#include <linux/moduleparam.h>
#include <linux/vmalloc.h>
spin_lock_irqsave(&ha->vport_slock, flags);
list_add_tail(&vha->list, &ha->vp_list);
+
+ qlt_update_vp_map(vha, SET_VP_IDX);
+
spin_unlock_irqrestore(&ha->vport_slock, flags);
mutex_unlock(&ha->vport_lock);
spin_lock_irqsave(&ha->vport_slock, flags);
}
list_del(&vha->list);
+ qlt_update_vp_map(vha, RESET_VP_IDX);
spin_unlock_irqrestore(&ha->vport_slock, flags);
vp_id = vha->vp_idx;
list_for_each_entry(fcport, &vha->vp_fcports, list) {
ql_dbg(ql_dbg_vport, vha, 0xa001,
"Marking port dead, loop_id=0x%04x : %x.\n",
- fcport->loop_id, fcport->vp_idx);
+ fcport->loop_id, fcport->vha->vp_idx);
qla2x00_mark_device_lost(vha, fcport, 0, 0);
qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
atomic_set(&vha->loop_state, LOOP_DOWN);
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
+ /* Remove port id from vp target map */
+ qlt_update_vp_map(vha, RESET_AL_PA);
+
qla2x00_mark_vp_devices_dead(vha);
atomic_set(&vha->vp_state, VP_FAILED);
vha->flags.management_server_logged_in = 0;
static int
qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
{
- ql_dbg(ql_dbg_dpc, vha, 0x4012,
- "Entering %s.\n", __func__);
- ql_dbg(ql_dbg_dpc, vha, 0x4013,
- "vp_flags: 0x%lx.\n", vha->vp_flags);
+ ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x4012,
+ "Entering %s vp_flags: 0x%lx.\n", __func__, vha->vp_flags);
qla2x00_do_work(vha);
}
}
- ql_dbg(ql_dbg_dpc, vha, 0x401c,
+ ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x401c,
"Exiting %s.\n", __func__);
return 0;
}
}
/* Offset in flash = lower 16 bits
- * Number of enteries = upper 16 bits
+ * Number of entries = upper 16 bits
*/
offset = n & 0xffffU;
n = (n >> 16) & 0xffffU;
- /* number of addr/value pair should not exceed 1024 enteries */
+ /* number of addr/value pair should not exceed 1024 entries */
if (n >= 1024) {
ql_log(ql_log_fatal, vha, 0x0071,
"Card flash not initialized:n=0x%x.\n", n);
rsp = (struct rsp_que *) dev_id;
if (!rsp) {
- ql_log(ql_log_info, NULL, 0xb054,
+ ql_log(ql_log_info, NULL, 0xb053,
"%s: NULL response queue pointer.\n", __func__);
return IRQ_NONE;
}
if (qla82xx_fw_load_from_flash(ha) == QLA_SUCCESS) {
ql_log(ql_log_info, vha, 0x00a1,
- "Firmware loaded successully from flash.\n");
+ "Firmware loaded successfully from flash.\n");
return QLA_SUCCESS;
} else {
ql_log(ql_log_warn, vha, 0x0108,
blob = ha->hablob = qla2x00_request_firmware(vha);
if (!blob) {
ql_log(ql_log_fatal, vha, 0x00a3,
- "Firmware image not preset.\n");
+ "Firmware image not present.\n");
goto fw_load_failed;
}
if (!optrom) {
ql_log(ql_log_warn, vha, 0xb01b,
"Unable to allocate memory "
- "for optron burst write (%x KB).\n",
+ "for optrom burst write (%x KB).\n",
OPTROM_BURST_SIZE / 1024);
}
}
* changing the state to DEV_READY
*/
ql_log(ql_log_info, vha, 0xb023,
- "%s : QUIESCENT TIMEOUT.\n", QLA2XXX_DRIVER_NAME);
- ql_log(ql_log_info, vha, 0xb024,
- "DRV_ACTIVE:%d DRV_STATE:%d.\n",
+ "%s : QUIESCENT TIMEOUT DRV_ACTIVE:%d "
+ "DRV_STATE:%d.\n", QLA2XXX_DRIVER_NAME,
drv_active, drv_state);
qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
QLA82XX_DEV_READY);
if (ql2xmdenable) {
if (qla82xx_md_collect(vha))
ql_log(ql_log_warn, vha, 0xb02c,
- "Not able to collect minidump.\n");
+ "Minidump not collected.\n");
} else
ql_log(ql_log_warn, vha, 0xb04f,
"Minidump disabled.\n");
"Firmware version differs "
"Previous version: %d:%d:%d - "
"New version: %d:%d:%d\n",
+ fw_major_version, fw_minor_version,
+ fw_subminor_version,
ha->fw_major_version,
ha->fw_minor_version,
- ha->fw_subminor_version,
- fw_major_version, fw_minor_version,
- fw_subminor_version);
+ ha->fw_subminor_version);
/* Release MiniDump resources */
qla82xx_md_free(vha);
/* ALlocate MiniDump resources */
return rval;
}
+static int qla82xx_check_temp(scsi_qla_host_t *vha)
+{
+ uint32_t temp, temp_state, temp_val;
+ struct qla_hw_data *ha = vha->hw;
+
+ temp = qla82xx_rd_32(ha, CRB_TEMP_STATE);
+ temp_state = qla82xx_get_temp_state(temp);
+ temp_val = qla82xx_get_temp_val(temp);
+
+ if (temp_state == QLA82XX_TEMP_PANIC) {
+ ql_log(ql_log_warn, vha, 0x600e,
+ "Device temperature %d degrees C exceeds "
+ " maximum allowed. Hardware has been shut down.\n",
+ temp_val);
+ return 1;
+ } else if (temp_state == QLA82XX_TEMP_WARN) {
+ ql_log(ql_log_warn, vha, 0x600f,
+ "Device temperature %d degrees C exceeds "
+ "operating range. Immediate action needed.\n",
+ temp_val);
+ }
+ return 0;
+}
+
void qla82xx_clear_pending_mbx(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
/* don't poll if reset is going on */
if (!ha->flags.isp82xx_reset_hdlr_active) {
dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
- if (dev_state == QLA82XX_DEV_NEED_RESET &&
+ if (qla82xx_check_temp(vha)) {
+ set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
+ ha->flags.isp82xx_fw_hung = 1;
+ qla82xx_clear_pending_mbx(vha);
+ } else if (dev_state == QLA82XX_DEV_NEED_RESET &&
!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
ql_log(ql_log_warn, vha, 0x6001,
"Adapter reset needed.\n");
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
- qla2xxx_wake_dpc(vha);
} else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT &&
!test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
ql_log(ql_log_warn, vha, 0x6002,
"Quiescent needed.\n");
set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
- qla2xxx_wake_dpc(vha);
} else {
if (qla82xx_check_fw_alive(vha)) {
ql_dbg(ql_dbg_timer, vha, 0x6011,
set_bit(ISP_ABORT_NEEDED,
&vha->dpc_flags);
}
- qla2xxx_wake_dpc(vha);
ha->flags.isp82xx_fw_hung = 1;
ql_log(ql_log_warn, vha, 0x6007, "Firmware hung.\n");
qla82xx_clear_pending_mbx(vha);
goto md_failed;
}
+ if (ha->flags.isp82xx_no_md_cap) {
+ ql_log(ql_log_warn, vha, 0xb054,
+ "Forced reset from application, "
+ "ignore minidump capture\n");
+ ha->flags.isp82xx_no_md_cap = 0;
+ goto md_failed;
+ }
+
if (qla82xx_validate_template_chksum(vha)) {
ql_log(ql_log_info, vha, 0xb039,
"Template checksum validation error\n");
#define CRB_RCVPEG_STATE QLA82XX_REG(0x13c)
#define BOOT_LOADER_DIMM_STATUS QLA82XX_REG(0x54)
#define CRB_DMA_SHIFT QLA82XX_REG(0xcc)
+#define CRB_TEMP_STATE QLA82XX_REG(0x1b4)
#define QLA82XX_DMA_SHIFT_VALUE 0x55555555
#define QLA82XX_HW_H0_CH_HUB_ADR 0x05
#define QLA82XX_FW_VERSION_SUB (QLA82XX_CAM_RAM(0x158))
#define QLA82XX_PCIE_REG(reg) (QLA82XX_CRB_PCIE + (reg))
-#define PCIE_CHICKEN3 (0x120c8)
#define PCIE_SETUP_FUNCTION (0x12040)
#define PCIE_SETUP_FUNCTION2 (0x12048)
#define CRB_NIU_XG_PAUSE_CTL_P0 0x1
#define CRB_NIU_XG_PAUSE_CTL_P1 0x8
+#define qla82xx_get_temp_val(x) ((x) >> 16)
+#define qla82xx_get_temp_state(x) ((x) & 0xffff)
+#define qla82xx_encode_temp(val, state) (((val) << 16) | (state))
+
+/*
+ * Temperature control.
+ */
+enum {
+ QLA82XX_TEMP_NORMAL = 0x1, /* Normal operating range */
+ QLA82XX_TEMP_WARN, /* Sound alert, temperature getting high */
+ QLA82XX_TEMP_PANIC /* Fatal error, hardware has shut down. */
+};
#endif
#include <linux/mutex.h>
#include <linux/kobject.h>
#include <linux/slab.h>
-
#include <scsi/scsi_tcq.h>
#include <scsi/scsicam.h>
#include <scsi/scsi_transport.h>
#include <scsi/scsi_transport_fc.h>
+#include "qla_target.h"
+
/*
* Driver version
*/
*/
int ql_errlev = ql_log_all;
+int ql2xenableclass2;
+module_param(ql2xenableclass2, int, S_IRUGO|S_IRUSR);
+MODULE_PARM_DESC(ql2xenableclass2,
+ "Specify if Class 2 operations are supported from the very "
+ "beginning. Default is 0 - class 2 not supported.");
+
int ql2xlogintimeout = 20;
module_param(ql2xlogintimeout, int, S_IRUGO);
MODULE_PARM_DESC(ql2xlogintimeout,
.max_sectors = 0xFFFF,
.shost_attrs = qla2x00_host_attrs,
+
+ .supported_mode = MODE_INITIATOR,
};
static struct scsi_transport_template *qla2xxx_transport_template = NULL;
static void qla2x00_mem_free(struct qla_hw_data *);
/* -------------------------------------------------------------------------- */
-static int qla2x00_alloc_queues(struct qla_hw_data *ha)
+static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req,
+ struct rsp_que *rsp)
{
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
"Unable to allocate memory for response queue ptrs.\n");
goto fail_rsp_map;
}
+ /*
+ * Make sure we record at least the request and response queue zero in
+ * case we need to free them if part of the probe fails.
+ */
+ ha->rsp_q_map[0] = rsp;
+ ha->req_q_map[0] = req;
set_bit(0, ha->rsp_qid_map);
set_bit(0, ha->req_qid_map);
return 1;
if (ha->flags.eeh_busy) {
if (ha->flags.pci_channel_io_perm_failure) {
- ql_dbg(ql_dbg_io, vha, 0x3001,
+ ql_dbg(ql_dbg_aer, vha, 0x9010,
"PCI Channel IO permanent failure, exiting "
"cmd=%p.\n", cmd);
cmd->result = DID_NO_CONNECT << 16;
} else {
- ql_dbg(ql_dbg_io, vha, 0x3002,
+ ql_dbg(ql_dbg_aer, vha, 0x9011,
"EEH_Busy, Requeuing the cmd=%p.\n", cmd);
cmd->result = DID_REQUEUE << 16;
}
rval = fc_remote_port_chkready(rport);
if (rval) {
cmd->result = rval;
- ql_dbg(ql_dbg_io, vha, 0x3003,
+ ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3003,
"fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
cmd, rval);
goto qc24_fail_command;
ret = FAILED;
ql_log(ql_log_info, vha, 0x8012,
- "BUS RESET ISSUED nexus=%ld:%d%d.\n", vha->host_no, id, lun);
+ "BUS RESET ISSUED nexus=%ld:%d:%d.\n", vha->host_no, id, lun);
if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
ql_log(ql_log_fatal, vha, 0x8013,
ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
"Memory allocated for ha=%p.\n", ha);
ha->pdev = pdev;
+ ha->tgt.enable_class_2 = ql2xenableclass2;
/* Clear our data area */
ha->bars = bars;
ha->mbx_count = MAILBOX_REGISTER_COUNT;
req_length = REQUEST_ENTRY_CNT_24XX;
rsp_length = RESPONSE_ENTRY_CNT_2300;
+ ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
ha->gid_list_info_size = 8;
ha->mbx_count = MAILBOX_REGISTER_COUNT;
req_length = REQUEST_ENTRY_CNT_24XX;
rsp_length = RESPONSE_ENTRY_CNT_2300;
+ ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
ha->gid_list_info_size = 8;
host->max_cmd_len, host->max_channel, host->max_lun,
host->transportt, sht->vendor_id);
+que_init:
+ /* Alloc arrays of request and response ring ptrs */
+ if (!qla2x00_alloc_queues(ha, req, rsp)) {
+ ql_log(ql_log_fatal, base_vha, 0x003d,
+ "Failed to allocate memory for queue pointers..."
+ "aborting.\n");
+ goto probe_init_failed;
+ }
+
+ qlt_probe_one_stage1(base_vha, ha);
+
/* Set up the irqs */
ret = qla2x00_request_irqs(ha, rsp);
if (ret)
pci_save_state(pdev);
- /* Alloc arrays of request and response ring ptrs */
-que_init:
- if (!qla2x00_alloc_queues(ha)) {
- ql_log(ql_log_fatal, base_vha, 0x003d,
- "Failed to allocate memory for queue pointers.. aborting.\n");
- goto probe_init_failed;
- }
-
- ha->rsp_q_map[0] = rsp;
- ha->req_q_map[0] = req;
+ /* Assign back pointers */
rsp->req = req;
req->rsp = rsp;
- set_bit(0, ha->req_qid_map);
- set_bit(0, ha->rsp_qid_map);
+
/* FWI2-capable only. */
req->req_q_in = &ha->iobase->isp24.req_q_in;
req->req_q_out = &ha->iobase->isp24.req_q_out;
ql_dbg(ql_dbg_init, base_vha, 0x00ee,
"DPC thread started successfully.\n");
+ /*
+ * If we're not coming up in initiator mode, we might sit for
+ * a while without waking up the dpc thread, which leads to a
+ * stuck process warning. So just kick the dpc once here and
+ * let the kthread start (and go back to sleep in qla2x00_do_dpc).
+ */
+ qla2xxx_wake_dpc(base_vha);
+
skip_dpc:
list_add_tail(&base_vha->list, &ha->vp_list);
base_vha->host->irq = ha->pdev->irq;
ql_dbg(ql_dbg_init, base_vha, 0x00f2,
"Init done and hba is online.\n");
- scsi_scan_host(host);
+ if (qla_ini_mode_enabled(base_vha))
+ scsi_scan_host(host);
+ else
+ ql_dbg(ql_dbg_init, base_vha, 0x0122,
+ "skipping scsi_scan_host() for non-initiator port\n");
qla2x00_alloc_sysfs_attr(base_vha);
base_vha->host_no,
ha->isp_ops->fw_version_str(base_vha, fw_str));
+ qlt_add_target(ha, base_vha);
+
return 0;
probe_init_failed:
qla2x00_free_req_que(ha, req);
+ ha->req_q_map[0] = NULL;
+ clear_bit(0, ha->req_qid_map);
qla2x00_free_rsp_que(ha, rsp);
+ ha->rsp_q_map[0] = NULL;
+ clear_bit(0, ha->rsp_qid_map);
ha->max_req_queues = ha->max_rsp_queues = 0;
probe_failed:
return ret;
}
+static void
+qla2x00_stop_dpc_thread(scsi_qla_host_t *vha)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct task_struct *t = ha->dpc_thread;
+
+ if (ha->dpc_thread == NULL)
+ return;
+ /*
+ * qla2xxx_wake_dpc checks for ->dpc_thread
+ * so we need to zero it out.
+ */
+ ha->dpc_thread = NULL;
+ kthread_stop(t);
+}
+
static void
qla2x00_shutdown(struct pci_dev *pdev)
{
struct qla_hw_data *ha;
unsigned long flags;
+ /*
+ * If the PCI device is disabled that means that probe failed and any
+ * resources should be have cleaned up on probe exit.
+ */
+ if (!atomic_read(&pdev->enable_cnt))
+ return;
+
base_vha = pci_get_drvdata(pdev);
ha = base_vha->hw;
+ ha->flags.host_shutting_down = 1;
+
mutex_lock(&ha->vport_lock);
while (ha->cur_vport_count) {
struct Scsi_Host *scsi_host;
ha->dpc_thread = NULL;
kthread_stop(t);
}
+ qlt_remove_target(ha, base_vha);
qla2x00_free_sysfs_attr(base_vha);
if (vha->timer_active)
qla2x00_stop_timer(vha);
- /* Kill the kernel thread for this host */
- if (ha->dpc_thread) {
- struct task_struct *t = ha->dpc_thread;
-
- /*
- * qla2xxx_wake_dpc checks for ->dpc_thread
- * so we need to zero it out.
- */
- ha->dpc_thread = NULL;
- kthread_stop(t);
- }
+ qla2x00_stop_dpc_thread(vha);
qla25xx_delete_queues(vha);
spin_unlock_irqrestore(vha->host->host_lock, flags);
set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
qla2xxx_wake_dpc(base_vha);
- } else
+ } else {
fc_remote_port_delete(rport);
+ qlt_fc_port_deleted(vha, fcport);
+ }
}
/*
int do_login, int defer)
{
if (atomic_read(&fcport->state) == FCS_ONLINE &&
- vha->vp_idx == fcport->vp_idx) {
+ vha->vp_idx == fcport->vha->vp_idx) {
qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
qla2x00_schedule_rport_del(vha, fcport, defer);
}
fc_port_t *fcport;
list_for_each_entry(fcport, &vha->vp_fcports, list) {
- if (vha->vp_idx != 0 && vha->vp_idx != fcport->vp_idx)
+ if (vha->vp_idx != 0 && vha->vp_idx != fcport->vha->vp_idx)
continue;
/*
qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
if (defer)
qla2x00_schedule_rport_del(vha, fcport, defer);
- else if (vha->vp_idx == fcport->vp_idx)
+ else if (vha->vp_idx == fcport->vha->vp_idx)
qla2x00_schedule_rport_del(vha, fcport, defer);
}
}
if (!ha->init_cb)
goto fail;
+ if (qlt_mem_alloc(ha) < 0)
+ goto fail_free_init_cb;
+
ha->gid_list = dma_alloc_coherent(&ha->pdev->dev,
qla2x00_gid_list_size(ha), &ha->gid_list_dma, GFP_KERNEL);
if (!ha->gid_list)
- goto fail_free_init_cb;
+ goto fail_free_tgt_mem;
ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
if (!ha->srb_mempool)
ha->gid_list_dma);
ha->gid_list = NULL;
ha->gid_list_dma = 0;
+fail_free_tgt_mem:
+ qlt_mem_free(ha);
fail_free_init_cb:
dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
ha->init_cb_dma);
if (ha->ctx_mempool)
mempool_destroy(ha->ctx_mempool);
+ qlt_mem_free(ha);
+
if (ha->init_cb)
dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
ha->init_cb, ha->init_cb_dma);
ha->gid_list = NULL;
ha->gid_list_dma = 0;
+
+ ha->tgt.atio_ring = NULL;
+ ha->tgt.atio_dma = 0;
+ ha->tgt.tgt_vp_map = NULL;
}
struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
ha->dpc_active = 1;
- ql_dbg(ql_dbg_dpc, base_vha, 0x4001,
- "DPC handler waking up.\n");
- ql_dbg(ql_dbg_dpc, base_vha, 0x4002,
- "dpc_flags=0x%lx.\n", base_vha->dpc_flags);
+ ql_dbg(ql_dbg_dpc + ql_dbg_verbose, base_vha, 0x4001,
+ "DPC handler waking up, dpc_flags=0x%lx.\n",
+ base_vha->dpc_flags);
qla2x00_do_work(base_vha);
clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
}
+ if (test_bit(SCR_PENDING, &base_vha->dpc_flags)) {
+ int ret;
+ ret = qla2x00_send_change_request(base_vha, 0x3, 0);
+ if (ret != QLA_SUCCESS)
+ ql_log(ql_log_warn, base_vha, 0x121,
+ "Failed to enable receiving of RSCN "
+ "requests: 0x%x.\n", ret);
+ clear_bit(SCR_PENDING, &base_vha->dpc_flags);
+ }
+
if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
ql_dbg(ql_dbg_dpc, base_vha, 0x4009,
"Quiescence mode scheduled.\n");
return -ENOMEM;
}
+ /* Initialize target kmem_cache and mem_pools */
+ ret = qlt_init();
+ if (ret < 0) {
+ kmem_cache_destroy(srb_cachep);
+ return ret;
+ } else if (ret > 0) {
+ /*
+ * If initiator mode is explictly disabled by qlt_init(),
+ * prevent scsi_transport_fc.c:fc_scsi_scan_rport() from
+ * performing scsi_scan_target() during LOOP UP event.
+ */
+ qla2xxx_transport_functions.disable_target_scan = 1;
+ qla2xxx_transport_vport_functions.disable_target_scan = 1;
+ }
+
/* Derive version string. */
strcpy(qla2x00_version_str, QLA2XXX_VERSION);
if (ql2xextended_error_logging)
kmem_cache_destroy(srb_cachep);
ql_log(ql_log_fatal, NULL, 0x0002,
"fc_attach_transport failed...Failing load!.\n");
+ qlt_exit();
return -ENODEV;
}
fc_attach_transport(&qla2xxx_transport_vport_functions);
if (!qla2xxx_transport_vport_template) {
kmem_cache_destroy(srb_cachep);
+ qlt_exit();
fc_release_transport(qla2xxx_transport_template);
ql_log(ql_log_fatal, NULL, 0x0004,
"fc_attach_transport vport failed...Failing load!.\n");
ret = pci_register_driver(&qla2xxx_pci_driver);
if (ret) {
kmem_cache_destroy(srb_cachep);
+ qlt_exit();
fc_release_transport(qla2xxx_transport_template);
fc_release_transport(qla2xxx_transport_vport_template);
ql_log(ql_log_fatal, NULL, 0x0006,
pci_unregister_driver(&qla2xxx_pci_driver);
qla2x00_release_firmware();
kmem_cache_destroy(srb_cachep);
+ qlt_exit();
if (ctx_cachep)
kmem_cache_destroy(ctx_cachep);
fc_release_transport(qla2xxx_transport_template);
--- /dev/null
+/*
+ * qla_target.c SCSI LLD infrastructure for QLogic 22xx/23xx/24xx/25xx
+ *
+ * based on qla2x00t.c code:
+ *
+ * Copyright (C) 2004 - 2010 Vladislav Bolkhovitin <vst@vlnb.net>
+ * Copyright (C) 2004 - 2005 Leonid Stoljar
+ * Copyright (C) 2006 Nathaniel Clark <nate@misrule.us>
+ * Copyright (C) 2006 - 2010 ID7 Ltd.
+ *
+ * Forward port and refactoring to modern qla2xxx and target/configfs
+ *
+ * Copyright (C) 2010-2011 Nicholas A. Bellinger <nab@kernel.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, version 2
+ * of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/version.h>
+#include <linux/blkdev.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/list.h>
+#include <linux/workqueue.h>
+#include <asm/unaligned.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_tcq.h>
+#include <target/target_core_base.h>
+#include <target/target_core_fabric.h>
+
+#include "qla_def.h"
+#include "qla_target.h"
+
+static char *qlini_mode = QLA2XXX_INI_MODE_STR_ENABLED;
+module_param(qlini_mode, charp, S_IRUGO);
+MODULE_PARM_DESC(qlini_mode,
+ "Determines when initiator mode will be enabled. Possible values: "
+ "\"exclusive\" - initiator mode will be enabled on load, "
+ "disabled on enabling target mode and then on disabling target mode "
+ "enabled back; "
+ "\"disabled\" - initiator mode will never be enabled; "
+ "\"enabled\" (default) - initiator mode will always stay enabled.");
+
+static int ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE;
+
+/*
+ * From scsi/fc/fc_fcp.h
+ */
+enum fcp_resp_rsp_codes {
+ FCP_TMF_CMPL = 0,
+ FCP_DATA_LEN_INVALID = 1,
+ FCP_CMND_FIELDS_INVALID = 2,
+ FCP_DATA_PARAM_MISMATCH = 3,
+ FCP_TMF_REJECTED = 4,
+ FCP_TMF_FAILED = 5,
+ FCP_TMF_INVALID_LUN = 9,
+};
+
+/*
+ * fc_pri_ta from scsi/fc/fc_fcp.h
+ */
+#define FCP_PTA_SIMPLE 0 /* simple task attribute */
+#define FCP_PTA_HEADQ 1 /* head of queue task attribute */
+#define FCP_PTA_ORDERED 2 /* ordered task attribute */
+#define FCP_PTA_ACA 4 /* auto. contigent allegiance */
+#define FCP_PTA_MASK 7 /* mask for task attribute field */
+#define FCP_PRI_SHIFT 3 /* priority field starts in bit 3 */
+#define FCP_PRI_RESVD_MASK 0x80 /* reserved bits in priority field */
+
+/*
+ * This driver calls qla2x00_alloc_iocbs() and qla2x00_issue_marker(), which
+ * must be called under HW lock and could unlock/lock it inside.
+ * It isn't an issue, since in the current implementation on the time when
+ * those functions are called:
+ *
+ * - Either context is IRQ and only IRQ handler can modify HW data,
+ * including rings related fields,
+ *
+ * - Or access to target mode variables from struct qla_tgt doesn't
+ * cross those functions boundaries, except tgt_stop, which
+ * additionally protected by irq_cmd_count.
+ */
+/* Predefs for callbacks handed to qla2xxx LLD */
+static void qlt_24xx_atio_pkt(struct scsi_qla_host *ha,
+ struct atio_from_isp *pkt);
+static void qlt_response_pkt(struct scsi_qla_host *ha, response_t *pkt);
+static int qlt_issue_task_mgmt(struct qla_tgt_sess *sess, uint32_t lun,
+ int fn, void *iocb, int flags);
+static void qlt_send_term_exchange(struct scsi_qla_host *ha, struct qla_tgt_cmd
+ *cmd, struct atio_from_isp *atio, int ha_locked);
+static void qlt_reject_free_srr_imm(struct scsi_qla_host *ha,
+ struct qla_tgt_srr_imm *imm, int ha_lock);
+/*
+ * Global Variables
+ */
+static struct kmem_cache *qla_tgt_cmd_cachep;
+static struct kmem_cache *qla_tgt_mgmt_cmd_cachep;
+static mempool_t *qla_tgt_mgmt_cmd_mempool;
+static struct workqueue_struct *qla_tgt_wq;
+static DEFINE_MUTEX(qla_tgt_mutex);
+static LIST_HEAD(qla_tgt_glist);
+
+/* ha->hardware_lock supposed to be held on entry (to protect tgt->sess_list) */
+static struct qla_tgt_sess *qlt_find_sess_by_port_name(
+ struct qla_tgt *tgt,
+ const uint8_t *port_name)
+{
+ struct qla_tgt_sess *sess;
+
+ list_for_each_entry(sess, &tgt->sess_list, sess_list_entry) {
+ if (!memcmp(sess->port_name, port_name, WWN_SIZE))
+ return sess;
+ }
+
+ return NULL;
+}
+
+/* Might release hw lock, then reaquire!! */
+static inline int qlt_issue_marker(struct scsi_qla_host *vha, int vha_locked)
+{
+ /* Send marker if required */
+ if (unlikely(vha->marker_needed != 0)) {
+ int rc = qla2x00_issue_marker(vha, vha_locked);
+ if (rc != QLA_SUCCESS) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe03d,
+ "qla_target(%d): issue_marker() failed\n",
+ vha->vp_idx);
+ }
+ return rc;
+ }
+ return QLA_SUCCESS;
+}
+
+static inline
+struct scsi_qla_host *qlt_find_host_by_d_id(struct scsi_qla_host *vha,
+ uint8_t *d_id)
+{
+ struct qla_hw_data *ha = vha->hw;
+ uint8_t vp_idx;
+
+ if ((vha->d_id.b.area != d_id[1]) || (vha->d_id.b.domain != d_id[0]))
+ return NULL;
+
+ if (vha->d_id.b.al_pa == d_id[2])
+ return vha;
+
+ BUG_ON(ha->tgt.tgt_vp_map == NULL);
+ vp_idx = ha->tgt.tgt_vp_map[d_id[2]].idx;
+ if (likely(test_bit(vp_idx, ha->vp_idx_map)))
+ return ha->tgt.tgt_vp_map[vp_idx].vha;
+
+ return NULL;
+}
+
+static inline
+struct scsi_qla_host *qlt_find_host_by_vp_idx(struct scsi_qla_host *vha,
+ uint16_t vp_idx)
+{
+ struct qla_hw_data *ha = vha->hw;
+
+ if (vha->vp_idx == vp_idx)
+ return vha;
+
+ BUG_ON(ha->tgt.tgt_vp_map == NULL);
+ if (likely(test_bit(vp_idx, ha->vp_idx_map)))
+ return ha->tgt.tgt_vp_map[vp_idx].vha;
+
+ return NULL;
+}
+
+void qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha,
+ struct atio_from_isp *atio)
+{
+ switch (atio->u.raw.entry_type) {
+ case ATIO_TYPE7:
+ {
+ struct scsi_qla_host *host = qlt_find_host_by_d_id(vha,
+ atio->u.isp24.fcp_hdr.d_id);
+ if (unlikely(NULL == host)) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe03e,
+ "qla_target(%d): Received ATIO_TYPE7 "
+ "with unknown d_id %x:%x:%x\n", vha->vp_idx,
+ atio->u.isp24.fcp_hdr.d_id[0],
+ atio->u.isp24.fcp_hdr.d_id[1],
+ atio->u.isp24.fcp_hdr.d_id[2]);
+ break;
+ }
+ qlt_24xx_atio_pkt(host, atio);
+ break;
+ }
+
+ case IMMED_NOTIFY_TYPE:
+ {
+ struct scsi_qla_host *host = vha;
+ struct imm_ntfy_from_isp *entry =
+ (struct imm_ntfy_from_isp *)atio;
+
+ if ((entry->u.isp24.vp_index != 0xFF) &&
+ (entry->u.isp24.nport_handle != 0xFFFF)) {
+ host = qlt_find_host_by_vp_idx(vha,
+ entry->u.isp24.vp_index);
+ if (unlikely(!host)) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe03f,
+ "qla_target(%d): Received "
+ "ATIO (IMMED_NOTIFY_TYPE) "
+ "with unknown vp_index %d\n",
+ vha->vp_idx, entry->u.isp24.vp_index);
+ break;
+ }
+ }
+ qlt_24xx_atio_pkt(host, atio);
+ break;
+ }
+
+ default:
+ ql_dbg(ql_dbg_tgt, vha, 0xe040,
+ "qla_target(%d): Received unknown ATIO atio "
+ "type %x\n", vha->vp_idx, atio->u.raw.entry_type);
+ break;
+ }
+
+ return;
+}
+
+void qlt_response_pkt_all_vps(struct scsi_qla_host *vha, response_t *pkt)
+{
+ switch (pkt->entry_type) {
+ case CTIO_TYPE7:
+ {
+ struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt;
+ struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
+ entry->vp_index);
+ if (unlikely(!host)) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe041,
+ "qla_target(%d): Response pkt (CTIO_TYPE7) "
+ "received, with unknown vp_index %d\n",
+ vha->vp_idx, entry->vp_index);
+ break;
+ }
+ qlt_response_pkt(host, pkt);
+ break;
+ }
+
+ case IMMED_NOTIFY_TYPE:
+ {
+ struct scsi_qla_host *host = vha;
+ struct imm_ntfy_from_isp *entry =
+ (struct imm_ntfy_from_isp *)pkt;
+
+ host = qlt_find_host_by_vp_idx(vha, entry->u.isp24.vp_index);
+ if (unlikely(!host)) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe042,
+ "qla_target(%d): Response pkt (IMMED_NOTIFY_TYPE) "
+ "received, with unknown vp_index %d\n",
+ vha->vp_idx, entry->u.isp24.vp_index);
+ break;
+ }
+ qlt_response_pkt(host, pkt);
+ break;
+ }
+
+ case NOTIFY_ACK_TYPE:
+ {
+ struct scsi_qla_host *host = vha;
+ struct nack_to_isp *entry = (struct nack_to_isp *)pkt;
+
+ if (0xFF != entry->u.isp24.vp_index) {
+ host = qlt_find_host_by_vp_idx(vha,
+ entry->u.isp24.vp_index);
+ if (unlikely(!host)) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe043,
+ "qla_target(%d): Response "
+ "pkt (NOTIFY_ACK_TYPE) "
+ "received, with unknown "
+ "vp_index %d\n", vha->vp_idx,
+ entry->u.isp24.vp_index);
+ break;
+ }
+ }
+ qlt_response_pkt(host, pkt);
+ break;
+ }
+
+ case ABTS_RECV_24XX:
+ {
+ struct abts_recv_from_24xx *entry =
+ (struct abts_recv_from_24xx *)pkt;
+ struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
+ entry->vp_index);
+ if (unlikely(!host)) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe044,
+ "qla_target(%d): Response pkt "
+ "(ABTS_RECV_24XX) received, with unknown "
+ "vp_index %d\n", vha->vp_idx, entry->vp_index);
+ break;
+ }
+ qlt_response_pkt(host, pkt);
+ break;
+ }
+
+ case ABTS_RESP_24XX:
+ {
+ struct abts_resp_to_24xx *entry =
+ (struct abts_resp_to_24xx *)pkt;
+ struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
+ entry->vp_index);
+ if (unlikely(!host)) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe045,
+ "qla_target(%d): Response pkt "
+ "(ABTS_RECV_24XX) received, with unknown "
+ "vp_index %d\n", vha->vp_idx, entry->vp_index);
+ break;
+ }
+ qlt_response_pkt(host, pkt);
+ break;
+ }
+
+ default:
+ qlt_response_pkt(vha, pkt);
+ break;
+ }
+
+}
+
+static void qlt_free_session_done(struct work_struct *work)
+{
+ struct qla_tgt_sess *sess = container_of(work, struct qla_tgt_sess,
+ free_work);
+ struct qla_tgt *tgt = sess->tgt;
+ struct scsi_qla_host *vha = sess->vha;
+ struct qla_hw_data *ha = vha->hw;
+
+ BUG_ON(!tgt);
+ /*
+ * Release the target session for FC Nexus from fabric module code.
+ */
+ if (sess->se_sess != NULL)
+ ha->tgt.tgt_ops->free_session(sess);
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf001,
+ "Unregistration of sess %p finished\n", sess);
+
+ kfree(sess);
+ /*
+ * We need to protect against race, when tgt is freed before or
+ * inside wake_up()
+ */
+ tgt->sess_count--;
+ if (tgt->sess_count == 0)
+ wake_up_all(&tgt->waitQ);
+}
+
+/* ha->hardware_lock supposed to be held on entry */
+void qlt_unreg_sess(struct qla_tgt_sess *sess)
+{
+ struct scsi_qla_host *vha = sess->vha;
+
+ vha->hw->tgt.tgt_ops->clear_nacl_from_fcport_map(sess);
+
+ list_del(&sess->sess_list_entry);
+ if (sess->deleted)
+ list_del(&sess->del_list_entry);
+
+ INIT_WORK(&sess->free_work, qlt_free_session_done);
+ schedule_work(&sess->free_work);
+}
+EXPORT_SYMBOL(qlt_unreg_sess);
+
+/* ha->hardware_lock supposed to be held on entry */
+static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt_sess *sess = NULL;
+ uint32_t unpacked_lun, lun = 0;
+ uint16_t loop_id;
+ int res = 0;
+ struct imm_ntfy_from_isp *n = (struct imm_ntfy_from_isp *)iocb;
+ struct atio_from_isp *a = (struct atio_from_isp *)iocb;
+
+ loop_id = le16_to_cpu(n->u.isp24.nport_handle);
+ if (loop_id == 0xFFFF) {
+#if 0 /* FIXME: Re-enable Global event handling.. */
+ /* Global event */
+ atomic_inc(&ha->tgt.qla_tgt->tgt_global_resets_count);
+ qlt_clear_tgt_db(ha->tgt.qla_tgt, 1);
+ if (!list_empty(&ha->tgt.qla_tgt->sess_list)) {
+ sess = list_entry(ha->tgt.qla_tgt->sess_list.next,
+ typeof(*sess), sess_list_entry);
+ switch (mcmd) {
+ case QLA_TGT_NEXUS_LOSS_SESS:
+ mcmd = QLA_TGT_NEXUS_LOSS;
+ break;
+ case QLA_TGT_ABORT_ALL_SESS:
+ mcmd = QLA_TGT_ABORT_ALL;
+ break;
+ case QLA_TGT_NEXUS_LOSS:
+ case QLA_TGT_ABORT_ALL:
+ break;
+ default:
+ ql_dbg(ql_dbg_tgt, vha, 0xe046,
+ "qla_target(%d): Not allowed "
+ "command %x in %s", vha->vp_idx,
+ mcmd, __func__);
+ sess = NULL;
+ break;
+ }
+ } else
+ sess = NULL;
+#endif
+ } else {
+ sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id);
+ }
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe000,
+ "Using sess for qla_tgt_reset: %p\n", sess);
+ if (!sess) {
+ res = -ESRCH;
+ return res;
+ }
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe047,
+ "scsi(%ld): resetting (session %p from port "
+ "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x, "
+ "mcmd %x, loop_id %d)\n", vha->host_no, sess,
+ sess->port_name[0], sess->port_name[1],
+ sess->port_name[2], sess->port_name[3],
+ sess->port_name[4], sess->port_name[5],
+ sess->port_name[6], sess->port_name[7],
+ mcmd, loop_id);
+
+ lun = a->u.isp24.fcp_cmnd.lun;
+ unpacked_lun = scsilun_to_int((struct scsi_lun *)&lun);
+
+ return qlt_issue_task_mgmt(sess, unpacked_lun, mcmd,
+ iocb, QLA24XX_MGMT_SEND_NACK);
+}
+
+/* ha->hardware_lock supposed to be held on entry */
+static void qlt_schedule_sess_for_deletion(struct qla_tgt_sess *sess,
+ bool immediate)
+{
+ struct qla_tgt *tgt = sess->tgt;
+ uint32_t dev_loss_tmo = tgt->ha->port_down_retry_count + 5;
+
+ if (sess->deleted)
+ return;
+
+ ql_dbg(ql_dbg_tgt, sess->vha, 0xe001,
+ "Scheduling sess %p for deletion\n", sess);
+ list_add_tail(&sess->del_list_entry, &tgt->del_sess_list);
+ sess->deleted = 1;
+
+ if (immediate)
+ dev_loss_tmo = 0;
+
+ sess->expires = jiffies + dev_loss_tmo * HZ;
+
+ ql_dbg(ql_dbg_tgt, sess->vha, 0xe048,
+ "qla_target(%d): session for port %02x:%02x:%02x:"
+ "%02x:%02x:%02x:%02x:%02x (loop ID %d) scheduled for "
+ "deletion in %u secs (expires: %lu) immed: %d\n",
+ sess->vha->vp_idx,
+ sess->port_name[0], sess->port_name[1],
+ sess->port_name[2], sess->port_name[3],
+ sess->port_name[4], sess->port_name[5],
+ sess->port_name[6], sess->port_name[7],
+ sess->loop_id, dev_loss_tmo, sess->expires, immediate);
+
+ if (immediate)
+ schedule_delayed_work(&tgt->sess_del_work, 0);
+ else
+ schedule_delayed_work(&tgt->sess_del_work,
+ jiffies - sess->expires);
+}
+
+/* ha->hardware_lock supposed to be held on entry */
+static void qlt_clear_tgt_db(struct qla_tgt *tgt, bool local_only)
+{
+ struct qla_tgt_sess *sess;
+
+ list_for_each_entry(sess, &tgt->sess_list, sess_list_entry)
+ qlt_schedule_sess_for_deletion(sess, true);
+
+ /* At this point tgt could be already dead */
+}
+
+static int qla24xx_get_loop_id(struct scsi_qla_host *vha, const uint8_t *s_id,
+ uint16_t *loop_id)
+{
+ struct qla_hw_data *ha = vha->hw;
+ dma_addr_t gid_list_dma;
+ struct gid_list_info *gid_list;
+ char *id_iter;
+ int res, rc, i;
+ uint16_t entries;
+
+ gid_list = dma_alloc_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
+ &gid_list_dma, GFP_KERNEL);
+ if (!gid_list) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf044,
+ "qla_target(%d): DMA Alloc failed of %u\n",
+ vha->vp_idx, qla2x00_gid_list_size(ha));
+ return -ENOMEM;
+ }
+
+ /* Get list of logged in devices */
+ rc = qla2x00_get_id_list(vha, gid_list, gid_list_dma, &entries);
+ if (rc != QLA_SUCCESS) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf045,
+ "qla_target(%d): get_id_list() failed: %x\n",
+ vha->vp_idx, rc);
+ res = -1;
+ goto out_free_id_list;
+ }
+
+ id_iter = (char *)gid_list;
+ res = -1;
+ for (i = 0; i < entries; i++) {
+ struct gid_list_info *gid = (struct gid_list_info *)id_iter;
+ if ((gid->al_pa == s_id[2]) &&
+ (gid->area == s_id[1]) &&
+ (gid->domain == s_id[0])) {
+ *loop_id = le16_to_cpu(gid->loop_id);
+ res = 0;
+ break;
+ }
+ id_iter += ha->gid_list_info_size;
+ }
+
+out_free_id_list:
+ dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
+ gid_list, gid_list_dma);
+ return res;
+}
+
+static bool qlt_check_fcport_exist(struct scsi_qla_host *vha,
+ struct qla_tgt_sess *sess)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_port_24xx_data *pmap24;
+ bool res, found = false;
+ int rc, i;
+ uint16_t loop_id = 0xFFFF; /* to eliminate compiler's warning */
+ uint16_t entries;
+ void *pmap;
+ int pmap_len;
+ fc_port_t *fcport;
+ int global_resets;
+
+retry:
+ global_resets = atomic_read(&ha->tgt.qla_tgt->tgt_global_resets_count);
+
+ rc = qla2x00_get_node_name_list(vha, &pmap, &pmap_len);
+ if (rc != QLA_SUCCESS) {
+ res = false;
+ goto out;
+ }
+
+ pmap24 = pmap;
+ entries = pmap_len/sizeof(*pmap24);
+
+ for (i = 0; i < entries; ++i) {
+ if (!memcmp(sess->port_name, pmap24[i].port_name, WWN_SIZE)) {
+ loop_id = le16_to_cpu(pmap24[i].loop_id);
+ found = true;
+ break;
+ }
+ }
+
+ kfree(pmap);
+
+ if (!found) {
+ res = false;
+ goto out;
+ }
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf046,
+ "qlt_check_fcport_exist(): loop_id %d", loop_id);
+
+ fcport = kzalloc(sizeof(*fcport), GFP_KERNEL);
+ if (fcport == NULL) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf047,
+ "qla_target(%d): Allocation of tmp FC port failed",
+ vha->vp_idx);
+ res = false;
+ goto out;
+ }
+
+ fcport->loop_id = loop_id;
+
+ rc = qla2x00_get_port_database(vha, fcport, 0);
+ if (rc != QLA_SUCCESS) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf048,
+ "qla_target(%d): Failed to retrieve fcport "
+ "information -- get_port_database() returned %x "
+ "(loop_id=0x%04x)", vha->vp_idx, rc, loop_id);
+ res = false;
+ goto out_free_fcport;
+ }
+
+ if (global_resets !=
+ atomic_read(&ha->tgt.qla_tgt->tgt_global_resets_count)) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf002,
+ "qla_target(%d): global reset during session discovery"
+ " (counter was %d, new %d), retrying",
+ vha->vp_idx, global_resets,
+ atomic_read(&ha->tgt.qla_tgt->tgt_global_resets_count));
+ goto retry;
+ }
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf003,
+ "Updating sess %p s_id %x:%x:%x, loop_id %d) to d_id %x:%x:%x, "
+ "loop_id %d", sess, sess->s_id.b.domain, sess->s_id.b.al_pa,
+ sess->s_id.b.area, sess->loop_id, fcport->d_id.b.domain,
+ fcport->d_id.b.al_pa, fcport->d_id.b.area, fcport->loop_id);
+
+ sess->s_id = fcport->d_id;
+ sess->loop_id = fcport->loop_id;
+ sess->conf_compl_supported = !!(fcport->flags &
+ FCF_CONF_COMP_SUPPORTED);
+
+ res = true;
+
+out_free_fcport:
+ kfree(fcport);
+
+out:
+ return res;
+}
+
+/* ha->hardware_lock supposed to be held on entry */
+static void qlt_undelete_sess(struct qla_tgt_sess *sess)
+{
+ BUG_ON(!sess->deleted);
+
+ list_del(&sess->del_list_entry);
+ sess->deleted = 0;
+}
+
+static void qlt_del_sess_work_fn(struct delayed_work *work)
+{
+ struct qla_tgt *tgt = container_of(work, struct qla_tgt,
+ sess_del_work);
+ struct scsi_qla_host *vha = tgt->vha;
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt_sess *sess;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ while (!list_empty(&tgt->del_sess_list)) {
+ sess = list_entry(tgt->del_sess_list.next, typeof(*sess),
+ del_list_entry);
+ if (time_after_eq(jiffies, sess->expires)) {
+ bool cancel;
+
+ qlt_undelete_sess(sess);
+
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ cancel = qlt_check_fcport_exist(vha, sess);
+
+ if (cancel) {
+ if (sess->deleted) {
+ /*
+ * sess was again deleted while we were
+ * discovering it
+ */
+ spin_lock_irqsave(&ha->hardware_lock,
+ flags);
+ continue;
+ }
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf049,
+ "qla_target(%d): cancel deletion of "
+ "session for port %02x:%02x:%02x:%02x:%02x:"
+ "%02x:%02x:%02x (loop ID %d), because "
+ " it isn't deleted by firmware",
+ vha->vp_idx, sess->port_name[0],
+ sess->port_name[1], sess->port_name[2],
+ sess->port_name[3], sess->port_name[4],
+ sess->port_name[5], sess->port_name[6],
+ sess->port_name[7], sess->loop_id);
+ } else {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf004,
+ "Timeout: sess %p about to be deleted\n",
+ sess);
+ ha->tgt.tgt_ops->shutdown_sess(sess);
+ ha->tgt.tgt_ops->put_sess(sess);
+ }
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ } else {
+ schedule_delayed_work(&tgt->sess_del_work,
+ jiffies - sess->expires);
+ break;
+ }
+ }
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+}
+
+/*
+ * Adds an extra ref to allow to drop hw lock after adding sess to the list.
+ * Caller must put it.
+ */
+static struct qla_tgt_sess *qlt_create_sess(
+ struct scsi_qla_host *vha,
+ fc_port_t *fcport,
+ bool local)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt_sess *sess;
+ unsigned long flags;
+ unsigned char be_sid[3];
+
+ /* Check to avoid double sessions */
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ list_for_each_entry(sess, &ha->tgt.qla_tgt->sess_list,
+ sess_list_entry) {
+ if (!memcmp(sess->port_name, fcport->port_name, WWN_SIZE)) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf005,
+ "Double sess %p found (s_id %x:%x:%x, "
+ "loop_id %d), updating to d_id %x:%x:%x, "
+ "loop_id %d", sess, sess->s_id.b.domain,
+ sess->s_id.b.al_pa, sess->s_id.b.area,
+ sess->loop_id, fcport->d_id.b.domain,
+ fcport->d_id.b.al_pa, fcport->d_id.b.area,
+ fcport->loop_id);
+
+ if (sess->deleted)
+ qlt_undelete_sess(sess);
+
+ kref_get(&sess->se_sess->sess_kref);
+ sess->s_id = fcport->d_id;
+ sess->loop_id = fcport->loop_id;
+ sess->conf_compl_supported = !!(fcport->flags &
+ FCF_CONF_COMP_SUPPORTED);
+ if (sess->local && !local)
+ sess->local = 0;
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ return sess;
+ }
+ }
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ sess = kzalloc(sizeof(*sess), GFP_KERNEL);
+ if (!sess) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04a,
+ "qla_target(%u): session allocation failed, "
+ "all commands from port %02x:%02x:%02x:%02x:"
+ "%02x:%02x:%02x:%02x will be refused", vha->vp_idx,
+ fcport->port_name[0], fcport->port_name[1],
+ fcport->port_name[2], fcport->port_name[3],
+ fcport->port_name[4], fcport->port_name[5],
+ fcport->port_name[6], fcport->port_name[7]);
+
+ return NULL;
+ }
+ sess->tgt = ha->tgt.qla_tgt;
+ sess->vha = vha;
+ sess->s_id = fcport->d_id;
+ sess->loop_id = fcport->loop_id;
+ sess->local = local;
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf006,
+ "Adding sess %p to tgt %p via ->check_initiator_node_acl()\n",
+ sess, ha->tgt.qla_tgt);
+
+ be_sid[0] = sess->s_id.b.domain;
+ be_sid[1] = sess->s_id.b.area;
+ be_sid[2] = sess->s_id.b.al_pa;
+ /*
+ * Determine if this fc_port->port_name is allowed to access
+ * target mode using explict NodeACLs+MappedLUNs, or using
+ * TPG demo mode. If this is successful a target mode FC nexus
+ * is created.
+ */
+ if (ha->tgt.tgt_ops->check_initiator_node_acl(vha,
+ &fcport->port_name[0], sess, &be_sid[0], fcport->loop_id) < 0) {
+ kfree(sess);
+ return NULL;
+ }
+ /*
+ * Take an extra reference to ->sess_kref here to handle qla_tgt_sess
+ * access across ->hardware_lock reaquire.
+ */
+ kref_get(&sess->se_sess->sess_kref);
+
+ sess->conf_compl_supported = !!(fcport->flags &
+ FCF_CONF_COMP_SUPPORTED);
+ BUILD_BUG_ON(sizeof(sess->port_name) != sizeof(fcport->port_name));
+ memcpy(sess->port_name, fcport->port_name, sizeof(sess->port_name));
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ list_add_tail(&sess->sess_list_entry, &ha->tgt.qla_tgt->sess_list);
+ ha->tgt.qla_tgt->sess_count++;
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04b,
+ "qla_target(%d): %ssession for wwn %02x:%02x:%02x:%02x:"
+ "%02x:%02x:%02x:%02x (loop_id %d, s_id %x:%x:%x, confirmed"
+ " completion %ssupported) added\n",
+ vha->vp_idx, local ? "local " : "", fcport->port_name[0],
+ fcport->port_name[1], fcport->port_name[2], fcport->port_name[3],
+ fcport->port_name[4], fcport->port_name[5], fcport->port_name[6],
+ fcport->port_name[7], fcport->loop_id, sess->s_id.b.domain,
+ sess->s_id.b.area, sess->s_id.b.al_pa, sess->conf_compl_supported ?
+ "" : "not ");
+
+ return sess;
+}
+
+/*
+ * Called from drivers/scsi/qla2xxx/qla_init.c:qla2x00_reg_remote_port()
+ */
+void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt *tgt = ha->tgt.qla_tgt;
+ struct qla_tgt_sess *sess;
+ unsigned long flags;
+
+ if (!vha->hw->tgt.tgt_ops)
+ return;
+
+ if (!tgt || (fcport->port_type != FCT_INITIATOR))
+ return;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ if (tgt->tgt_stop) {
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ return;
+ }
+ sess = qlt_find_sess_by_port_name(tgt, fcport->port_name);
+ if (!sess) {
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ mutex_lock(&ha->tgt.tgt_mutex);
+ sess = qlt_create_sess(vha, fcport, false);
+ mutex_unlock(&ha->tgt.tgt_mutex);
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ } else {
+ kref_get(&sess->se_sess->sess_kref);
+
+ if (sess->deleted) {
+ qlt_undelete_sess(sess);
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04c,
+ "qla_target(%u): %ssession for port %02x:"
+ "%02x:%02x:%02x:%02x:%02x:%02x:%02x (loop ID %d) "
+ "reappeared\n", vha->vp_idx, sess->local ? "local "
+ : "", sess->port_name[0], sess->port_name[1],
+ sess->port_name[2], sess->port_name[3],
+ sess->port_name[4], sess->port_name[5],
+ sess->port_name[6], sess->port_name[7],
+ sess->loop_id);
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf007,
+ "Reappeared sess %p\n", sess);
+ }
+ sess->s_id = fcport->d_id;
+ sess->loop_id = fcport->loop_id;
+ sess->conf_compl_supported = !!(fcport->flags &
+ FCF_CONF_COMP_SUPPORTED);
+ }
+
+ if (sess && sess->local) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04d,
+ "qla_target(%u): local session for "
+ "port %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
+ "(loop ID %d) became global\n", vha->vp_idx,
+ fcport->port_name[0], fcport->port_name[1],
+ fcport->port_name[2], fcport->port_name[3],
+ fcport->port_name[4], fcport->port_name[5],
+ fcport->port_name[6], fcport->port_name[7],
+ sess->loop_id);
+ sess->local = 0;
+ }
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ ha->tgt.tgt_ops->put_sess(sess);
+}
+
+void qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt *tgt = ha->tgt.qla_tgt;
+ struct qla_tgt_sess *sess;
+ unsigned long flags;
+
+ if (!vha->hw->tgt.tgt_ops)
+ return;
+
+ if (!tgt || (fcport->port_type != FCT_INITIATOR))
+ return;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ if (tgt->tgt_stop) {
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ return;
+ }
+ sess = qlt_find_sess_by_port_name(tgt, fcport->port_name);
+ if (!sess) {
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ return;
+ }
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf008, "qla_tgt_fc_port_deleted %p", sess);
+
+ sess->local = 1;
+ qlt_schedule_sess_for_deletion(sess, false);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+}
+
+static inline int test_tgt_sess_count(struct qla_tgt *tgt)
+{
+ struct qla_hw_data *ha = tgt->ha;
+ unsigned long flags;
+ int res;
+ /*
+ * We need to protect against race, when tgt is freed before or
+ * inside wake_up()
+ */
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ ql_dbg(ql_dbg_tgt, tgt->vha, 0xe002,
+ "tgt %p, empty(sess_list)=%d sess_count=%d\n",
+ tgt, list_empty(&tgt->sess_list), tgt->sess_count);
+ res = (tgt->sess_count == 0);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ return res;
+}
+
+/* Called by tcm_qla2xxx configfs code */
+void qlt_stop_phase1(struct qla_tgt *tgt)
+{
+ struct scsi_qla_host *vha = tgt->vha;
+ struct qla_hw_data *ha = tgt->ha;
+ unsigned long flags;
+
+ if (tgt->tgt_stop || tgt->tgt_stopped) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04e,
+ "Already in tgt->tgt_stop or tgt_stopped state\n");
+ dump_stack();
+ return;
+ }
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe003, "Stopping target for host %ld(%p)\n",
+ vha->host_no, vha);
+ /*
+ * Mutex needed to sync with qla_tgt_fc_port_[added,deleted].
+ * Lock is needed, because we still can get an incoming packet.
+ */
+ mutex_lock(&ha->tgt.tgt_mutex);
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ tgt->tgt_stop = 1;
+ qlt_clear_tgt_db(tgt, true);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ mutex_unlock(&ha->tgt.tgt_mutex);
+
+ flush_delayed_work_sync(&tgt->sess_del_work);
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf009,
+ "Waiting for sess works (tgt %p)", tgt);
+ spin_lock_irqsave(&tgt->sess_work_lock, flags);
+ while (!list_empty(&tgt->sess_works_list)) {
+ spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
+ flush_scheduled_work();
+ spin_lock_irqsave(&tgt->sess_work_lock, flags);
+ }
+ spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00a,
+ "Waiting for tgt %p: list_empty(sess_list)=%d "
+ "sess_count=%d\n", tgt, list_empty(&tgt->sess_list),
+ tgt->sess_count);
+
+ wait_event(tgt->waitQ, test_tgt_sess_count(tgt));
+
+ /* Big hammer */
+ if (!ha->flags.host_shutting_down && qla_tgt_mode_enabled(vha))
+ qlt_disable_vha(vha);
+
+ /* Wait for sessions to clear out (just in case) */
+ wait_event(tgt->waitQ, test_tgt_sess_count(tgt));
+}
+EXPORT_SYMBOL(qlt_stop_phase1);
+
+/* Called by tcm_qla2xxx configfs code */
+void qlt_stop_phase2(struct qla_tgt *tgt)
+{
+ struct qla_hw_data *ha = tgt->ha;
+ unsigned long flags;
+
+ if (tgt->tgt_stopped) {
+ ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf04f,
+ "Already in tgt->tgt_stopped state\n");
+ dump_stack();
+ return;
+ }
+
+ ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf00b,
+ "Waiting for %d IRQ commands to complete (tgt %p)",
+ tgt->irq_cmd_count, tgt);
+
+ mutex_lock(&ha->tgt.tgt_mutex);
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ while (tgt->irq_cmd_count != 0) {
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ udelay(2);
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ }
+ tgt->tgt_stop = 0;
+ tgt->tgt_stopped = 1;
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ mutex_unlock(&ha->tgt.tgt_mutex);
+
+ ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf00c, "Stop of tgt %p finished",
+ tgt);
+}
+EXPORT_SYMBOL(qlt_stop_phase2);
+
+/* Called from qlt_remove_target() -> qla2x00_remove_one() */
+void qlt_release(struct qla_tgt *tgt)
+{
+ struct qla_hw_data *ha = tgt->ha;
+
+ if ((ha->tgt.qla_tgt != NULL) && !tgt->tgt_stopped)
+ qlt_stop_phase2(tgt);
+
+ ha->tgt.qla_tgt = NULL;
+
+ ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf00d,
+ "Release of tgt %p finished\n", tgt);
+
+ kfree(tgt);
+}
+
+/* ha->hardware_lock supposed to be held on entry */
+static int qlt_sched_sess_work(struct qla_tgt *tgt, int type,
+ const void *param, unsigned int param_size)
+{
+ struct qla_tgt_sess_work_param *prm;
+ unsigned long flags;
+
+ prm = kzalloc(sizeof(*prm), GFP_ATOMIC);
+ if (!prm) {
+ ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf050,
+ "qla_target(%d): Unable to create session "
+ "work, command will be refused", 0);
+ return -ENOMEM;
+ }
+
+ ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf00e,
+ "Scheduling work (type %d, prm %p)"
+ " to find session for param %p (size %d, tgt %p)\n",
+ type, prm, param, param_size, tgt);
+
+ prm->type = type;
+ memcpy(&prm->tm_iocb, param, param_size);
+
+ spin_lock_irqsave(&tgt->sess_work_lock, flags);
+ list_add_tail(&prm->sess_works_list_entry, &tgt->sess_works_list);
+ spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
+
+ schedule_work(&tgt->sess_work);
+
+ return 0;
+}
+
+/*
+ * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
+ */
+static void qlt_send_notify_ack(struct scsi_qla_host *vha,
+ struct imm_ntfy_from_isp *ntfy,
+ uint32_t add_flags, uint16_t resp_code, int resp_code_valid,
+ uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan)
+{
+ struct qla_hw_data *ha = vha->hw;
+ request_t *pkt;
+ struct nack_to_isp *nack;
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe004, "Sending NOTIFY_ACK (ha=%p)\n", ha);
+
+ /* Send marker if required */
+ if (qlt_issue_marker(vha, 1) != QLA_SUCCESS)
+ return;
+
+ pkt = (request_t *)qla2x00_alloc_iocbs(vha, NULL);
+ if (!pkt) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe049,
+ "qla_target(%d): %s failed: unable to allocate "
+ "request packet\n", vha->vp_idx, __func__);
+ return;
+ }
+
+ if (ha->tgt.qla_tgt != NULL)
+ ha->tgt.qla_tgt->notify_ack_expected++;
+
+ pkt->entry_type = NOTIFY_ACK_TYPE;
+ pkt->entry_count = 1;
+
+ nack = (struct nack_to_isp *)pkt;
+ nack->ox_id = ntfy->ox_id;
+
+ nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
+ if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
+ nack->u.isp24.flags = ntfy->u.isp24.flags &
+ __constant_cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB);
+ }
+ nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
+ nack->u.isp24.status = ntfy->u.isp24.status;
+ nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
+ nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
+ nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
+ nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
+ nack->u.isp24.srr_flags = cpu_to_le16(srr_flags);
+ nack->u.isp24.srr_reject_code = srr_reject_code;
+ nack->u.isp24.srr_reject_code_expl = srr_explan;
+ nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe005,
+ "qla_target(%d): Sending 24xx Notify Ack %d\n",
+ vha->vp_idx, nack->u.isp24.status);
+
+ qla2x00_start_iocbs(vha, vha->req);
+}
+
+/*
+ * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
+ */
+static void qlt_24xx_send_abts_resp(struct scsi_qla_host *vha,
+ struct abts_recv_from_24xx *abts, uint32_t status,
+ bool ids_reversed)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct abts_resp_to_24xx *resp;
+ uint32_t f_ctl;
+ uint8_t *p;
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe006,
+ "Sending task mgmt ABTS response (ha=%p, atio=%p, status=%x\n",
+ ha, abts, status);
+
+ /* Send marker if required */
+ if (qlt_issue_marker(vha, 1) != QLA_SUCCESS)
+ return;
+
+ resp = (struct abts_resp_to_24xx *)qla2x00_alloc_iocbs(vha, NULL);
+ if (!resp) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe04a,
+ "qla_target(%d): %s failed: unable to allocate "
+ "request packet", vha->vp_idx, __func__);
+ return;
+ }
+
+ resp->entry_type = ABTS_RESP_24XX;
+ resp->entry_count = 1;
+ resp->nport_handle = abts->nport_handle;
+ resp->vp_index = vha->vp_idx;
+ resp->sof_type = abts->sof_type;
+ resp->exchange_address = abts->exchange_address;
+ resp->fcp_hdr_le = abts->fcp_hdr_le;
+ f_ctl = __constant_cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP |
+ F_CTL_LAST_SEQ | F_CTL_END_SEQ |
+ F_CTL_SEQ_INITIATIVE);
+ p = (uint8_t *)&f_ctl;
+ resp->fcp_hdr_le.f_ctl[0] = *p++;
+ resp->fcp_hdr_le.f_ctl[1] = *p++;
+ resp->fcp_hdr_le.f_ctl[2] = *p;
+ if (ids_reversed) {
+ resp->fcp_hdr_le.d_id[0] = abts->fcp_hdr_le.d_id[0];
+ resp->fcp_hdr_le.d_id[1] = abts->fcp_hdr_le.d_id[1];
+ resp->fcp_hdr_le.d_id[2] = abts->fcp_hdr_le.d_id[2];
+ resp->fcp_hdr_le.s_id[0] = abts->fcp_hdr_le.s_id[0];
+ resp->fcp_hdr_le.s_id[1] = abts->fcp_hdr_le.s_id[1];
+ resp->fcp_hdr_le.s_id[2] = abts->fcp_hdr_le.s_id[2];
+ } else {
+ resp->fcp_hdr_le.d_id[0] = abts->fcp_hdr_le.s_id[0];
+ resp->fcp_hdr_le.d_id[1] = abts->fcp_hdr_le.s_id[1];
+ resp->fcp_hdr_le.d_id[2] = abts->fcp_hdr_le.s_id[2];
+ resp->fcp_hdr_le.s_id[0] = abts->fcp_hdr_le.d_id[0];
+ resp->fcp_hdr_le.s_id[1] = abts->fcp_hdr_le.d_id[1];
+ resp->fcp_hdr_le.s_id[2] = abts->fcp_hdr_le.d_id[2];
+ }
+ resp->exchange_addr_to_abort = abts->exchange_addr_to_abort;
+ if (status == FCP_TMF_CMPL) {
+ resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_ACC;
+ resp->payload.ba_acct.seq_id_valid = SEQ_ID_INVALID;
+ resp->payload.ba_acct.low_seq_cnt = 0x0000;
+ resp->payload.ba_acct.high_seq_cnt = 0xFFFF;
+ resp->payload.ba_acct.ox_id = abts->fcp_hdr_le.ox_id;
+ resp->payload.ba_acct.rx_id = abts->fcp_hdr_le.rx_id;
+ } else {
+ resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_RJT;
+ resp->payload.ba_rjt.reason_code =
+ BA_RJT_REASON_CODE_UNABLE_TO_PERFORM;
+ /* Other bytes are zero */
+ }
+
+ ha->tgt.qla_tgt->abts_resp_expected++;
+
+ qla2x00_start_iocbs(vha, vha->req);
+}
+
+/*
+ * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
+ */
+static void qlt_24xx_retry_term_exchange(struct scsi_qla_host *vha,
+ struct abts_resp_from_24xx_fw *entry)
+{
+ struct ctio7_to_24xx *ctio;
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe007,
+ "Sending retry TERM EXCH CTIO7 (ha=%p)\n", vha->hw);
+ /* Send marker if required */
+ if (qlt_issue_marker(vha, 1) != QLA_SUCCESS)
+ return;
+
+ ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs(vha, NULL);
+ if (ctio == NULL) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe04b,
+ "qla_target(%d): %s failed: unable to allocate "
+ "request packet\n", vha->vp_idx, __func__);
+ return;
+ }
+
+ /*
+ * We've got on entrance firmware's response on by us generated
+ * ABTS response. So, in it ID fields are reversed.
+ */
+
+ ctio->entry_type = CTIO_TYPE7;
+ ctio->entry_count = 1;
+ ctio->nport_handle = entry->nport_handle;
+ ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
+ ctio->timeout = __constant_cpu_to_le16(QLA_TGT_TIMEOUT);
+ ctio->vp_index = vha->vp_idx;
+ ctio->initiator_id[0] = entry->fcp_hdr_le.d_id[0];
+ ctio->initiator_id[1] = entry->fcp_hdr_le.d_id[1];
+ ctio->initiator_id[2] = entry->fcp_hdr_le.d_id[2];
+ ctio->exchange_addr = entry->exchange_addr_to_abort;
+ ctio->u.status1.flags =
+ __constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 |
+ CTIO7_FLAGS_TERMINATE);
+ ctio->u.status1.ox_id = entry->fcp_hdr_le.ox_id;
+
+ qla2x00_start_iocbs(vha, vha->req);
+
+ qlt_24xx_send_abts_resp(vha, (struct abts_recv_from_24xx *)entry,
+ FCP_TMF_CMPL, true);
+}
+
+/* ha->hardware_lock supposed to be held on entry */
+static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha,
+ struct abts_recv_from_24xx *abts, struct qla_tgt_sess *sess)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt_mgmt_cmd *mcmd;
+ int rc;
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00f,
+ "qla_target(%d): task abort (tag=%d)\n",
+ vha->vp_idx, abts->exchange_addr_to_abort);
+
+ mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
+ if (mcmd == NULL) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf051,
+ "qla_target(%d): %s: Allocation of ABORT cmd failed",
+ vha->vp_idx, __func__);
+ return -ENOMEM;
+ }
+ memset(mcmd, 0, sizeof(*mcmd));
+
+ mcmd->sess = sess;
+ memcpy(&mcmd->orig_iocb.abts, abts, sizeof(mcmd->orig_iocb.abts));
+
+ rc = ha->tgt.tgt_ops->handle_tmr(mcmd, 0, TMR_ABORT_TASK,
+ abts->exchange_addr_to_abort);
+ if (rc != 0) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf052,
+ "qla_target(%d): tgt_ops->handle_tmr()"
+ " failed: %d", vha->vp_idx, rc);
+ mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+/*
+ * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
+ */
+static void qlt_24xx_handle_abts(struct scsi_qla_host *vha,
+ struct abts_recv_from_24xx *abts)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt_sess *sess;
+ uint32_t tag = abts->exchange_addr_to_abort;
+ uint8_t s_id[3];
+ int rc;
+
+ if (le32_to_cpu(abts->fcp_hdr_le.parameter) & ABTS_PARAM_ABORT_SEQ) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf053,
+ "qla_target(%d): ABTS: Abort Sequence not "
+ "supported\n", vha->vp_idx);
+ qlt_24xx_send_abts_resp(vha, abts, FCP_TMF_REJECTED, false);
+ return;
+ }
+
+ if (tag == ATIO_EXCHANGE_ADDRESS_UNKNOWN) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf010,
+ "qla_target(%d): ABTS: Unknown Exchange "
+ "Address received\n", vha->vp_idx);
+ qlt_24xx_send_abts_resp(vha, abts, FCP_TMF_REJECTED, false);
+ return;
+ }
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf011,
+ "qla_target(%d): task abort (s_id=%x:%x:%x, "
+ "tag=%d, param=%x)\n", vha->vp_idx, abts->fcp_hdr_le.s_id[2],
+ abts->fcp_hdr_le.s_id[1], abts->fcp_hdr_le.s_id[0], tag,
+ le32_to_cpu(abts->fcp_hdr_le.parameter));
+
+ s_id[0] = abts->fcp_hdr_le.s_id[2];
+ s_id[1] = abts->fcp_hdr_le.s_id[1];
+ s_id[2] = abts->fcp_hdr_le.s_id[0];
+
+ sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
+ if (!sess) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf012,
+ "qla_target(%d): task abort for non-existant session\n",
+ vha->vp_idx);
+ rc = qlt_sched_sess_work(ha->tgt.qla_tgt,
+ QLA_TGT_SESS_WORK_ABORT, abts, sizeof(*abts));
+ if (rc != 0) {
+ qlt_24xx_send_abts_resp(vha, abts, FCP_TMF_REJECTED,
+ false);
+ }
+ return;
+ }
+
+ rc = __qlt_24xx_handle_abts(vha, abts, sess);
+ if (rc != 0) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf054,
+ "qla_target(%d): __qlt_24xx_handle_abts() failed: %d\n",
+ vha->vp_idx, rc);
+ qlt_24xx_send_abts_resp(vha, abts, FCP_TMF_REJECTED, false);
+ return;
+ }
+}
+
+/*
+ * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
+ */
+static void qlt_24xx_send_task_mgmt_ctio(struct scsi_qla_host *ha,
+ struct qla_tgt_mgmt_cmd *mcmd, uint32_t resp_code)
+{
+ struct atio_from_isp *atio = &mcmd->orig_iocb.atio;
+ struct ctio7_to_24xx *ctio;
+
+ ql_dbg(ql_dbg_tgt, ha, 0xe008,
+ "Sending task mgmt CTIO7 (ha=%p, atio=%p, resp_code=%x\n",
+ ha, atio, resp_code);
+
+ /* Send marker if required */
+ if (qlt_issue_marker(ha, 1) != QLA_SUCCESS)
+ return;
+
+ ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs(ha, NULL);
+ if (ctio == NULL) {
+ ql_dbg(ql_dbg_tgt, ha, 0xe04c,
+ "qla_target(%d): %s failed: unable to allocate "
+ "request packet\n", ha->vp_idx, __func__);
+ return;
+ }
+
+ ctio->entry_type = CTIO_TYPE7;
+ ctio->entry_count = 1;
+ ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
+ ctio->nport_handle = mcmd->sess->loop_id;
+ ctio->timeout = __constant_cpu_to_le16(QLA_TGT_TIMEOUT);
+ ctio->vp_index = ha->vp_idx;
+ ctio->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2];
+ ctio->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1];
+ ctio->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0];
+ ctio->exchange_addr = atio->u.isp24.exchange_addr;
+ ctio->u.status1.flags = (atio->u.isp24.attr << 9) |
+ __constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 |
+ CTIO7_FLAGS_SEND_STATUS);
+ ctio->u.status1.ox_id = swab16(atio->u.isp24.fcp_hdr.ox_id);
+ ctio->u.status1.scsi_status =
+ __constant_cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID);
+ ctio->u.status1.response_len = __constant_cpu_to_le16(8);
+ ((uint32_t *)ctio->u.status1.sense_data)[0] = cpu_to_be32(resp_code);
+
+ qla2x00_start_iocbs(ha, ha->req);
+}
+
+void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd)
+{
+ mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
+}
+EXPORT_SYMBOL(qlt_free_mcmd);
+
+/* callback from target fabric module code */
+void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *mcmd)
+{
+ struct scsi_qla_host *vha = mcmd->sess->vha;
+ struct qla_hw_data *ha = vha->hw;
+ unsigned long flags;
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf013,
+ "TM response mcmd (%p) status %#x state %#x",
+ mcmd, mcmd->fc_tm_rsp, mcmd->flags);
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ if (mcmd->flags == QLA24XX_MGMT_SEND_NACK)
+ qlt_send_notify_ack(vha, &mcmd->orig_iocb.imm_ntfy,
+ 0, 0, 0, 0, 0, 0);
+ else {
+ if (mcmd->se_cmd.se_tmr_req->function == TMR_ABORT_TASK)
+ qlt_24xx_send_abts_resp(vha, &mcmd->orig_iocb.abts,
+ mcmd->fc_tm_rsp, false);
+ else
+ qlt_24xx_send_task_mgmt_ctio(vha, mcmd,
+ mcmd->fc_tm_rsp);
+ }
+ /*
+ * Make the callback for ->free_mcmd() to queue_work() and invoke
+ * target_put_sess_cmd() to drop cmd_kref to 1. The final
+ * target_put_sess_cmd() call will be made from TFO->check_stop_free()
+ * -> tcm_qla2xxx_check_stop_free() to release the TMR associated se_cmd
+ * descriptor after TFO->queue_tm_rsp() -> tcm_qla2xxx_queue_tm_rsp() ->
+ * qlt_xmit_tm_rsp() returns here..
+ */
+ ha->tgt.tgt_ops->free_mcmd(mcmd);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+}
+EXPORT_SYMBOL(qlt_xmit_tm_rsp);
+
+/* No locks */
+static int qlt_pci_map_calc_cnt(struct qla_tgt_prm *prm)
+{
+ struct qla_tgt_cmd *cmd = prm->cmd;
+
+ BUG_ON(cmd->sg_cnt == 0);
+
+ prm->sg = (struct scatterlist *)cmd->sg;
+ prm->seg_cnt = pci_map_sg(prm->tgt->ha->pdev, cmd->sg,
+ cmd->sg_cnt, cmd->dma_data_direction);
+ if (unlikely(prm->seg_cnt == 0))
+ goto out_err;
+
+ prm->cmd->sg_mapped = 1;
+
+ /*
+ * If greater than four sg entries then we need to allocate
+ * the continuation entries
+ */
+ if (prm->seg_cnt > prm->tgt->datasegs_per_cmd)
+ prm->req_cnt += DIV_ROUND_UP(prm->seg_cnt -
+ prm->tgt->datasegs_per_cmd, prm->tgt->datasegs_per_cont);
+
+ ql_dbg(ql_dbg_tgt, prm->cmd->vha, 0xe009, "seg_cnt=%d, req_cnt=%d\n",
+ prm->seg_cnt, prm->req_cnt);
+ return 0;
+
+out_err:
+ ql_dbg(ql_dbg_tgt, prm->cmd->vha, 0xe04d,
+ "qla_target(%d): PCI mapping failed: sg_cnt=%d",
+ 0, prm->cmd->sg_cnt);
+ return -1;
+}
+
+static inline void qlt_unmap_sg(struct scsi_qla_host *vha,
+ struct qla_tgt_cmd *cmd)
+{
+ struct qla_hw_data *ha = vha->hw;
+
+ BUG_ON(!cmd->sg_mapped);
+ pci_unmap_sg(ha->pdev, cmd->sg, cmd->sg_cnt, cmd->dma_data_direction);
+ cmd->sg_mapped = 0;
+}
+
+static int qlt_check_reserve_free_req(struct scsi_qla_host *vha,
+ uint32_t req_cnt)
+{
+ struct qla_hw_data *ha = vha->hw;
+ device_reg_t __iomem *reg = ha->iobase;
+ uint32_t cnt;
+
+ if (vha->req->cnt < (req_cnt + 2)) {
+ cnt = (uint16_t)RD_REG_DWORD(®->isp24.req_q_out);
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe00a,
+ "Request ring circled: cnt=%d, vha->->ring_index=%d, "
+ "vha->req->cnt=%d, req_cnt=%d\n", cnt,
+ vha->req->ring_index, vha->req->cnt, req_cnt);
+ if (vha->req->ring_index < cnt)
+ vha->req->cnt = cnt - vha->req->ring_index;
+ else
+ vha->req->cnt = vha->req->length -
+ (vha->req->ring_index - cnt);
+ }
+
+ if (unlikely(vha->req->cnt < (req_cnt + 2))) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe00b,
+ "qla_target(%d): There is no room in the "
+ "request ring: vha->req->ring_index=%d, vha->req->cnt=%d, "
+ "req_cnt=%d\n", vha->vp_idx, vha->req->ring_index,
+ vha->req->cnt, req_cnt);
+ return -EAGAIN;
+ }
+ vha->req->cnt -= req_cnt;
+
+ return 0;
+}
+
+/*
+ * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
+ */
+static inline void *qlt_get_req_pkt(struct scsi_qla_host *vha)
+{
+ /* Adjust ring index. */
+ vha->req->ring_index++;
+ if (vha->req->ring_index == vha->req->length) {
+ vha->req->ring_index = 0;
+ vha->req->ring_ptr = vha->req->ring;
+ } else {
+ vha->req->ring_ptr++;
+ }
+ return (cont_entry_t *)vha->req->ring_ptr;
+}
+
+/* ha->hardware_lock supposed to be held on entry */
+static inline uint32_t qlt_make_handle(struct scsi_qla_host *vha)
+{
+ struct qla_hw_data *ha = vha->hw;
+ uint32_t h;
+
+ h = ha->tgt.current_handle;
+ /* always increment cmd handle */
+ do {
+ ++h;
+ if (h > MAX_OUTSTANDING_COMMANDS)
+ h = 1; /* 0 is QLA_TGT_NULL_HANDLE */
+ if (h == ha->tgt.current_handle) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe04e,
+ "qla_target(%d): Ran out of "
+ "empty cmd slots in ha %p\n", vha->vp_idx, ha);
+ h = QLA_TGT_NULL_HANDLE;
+ break;
+ }
+ } while ((h == QLA_TGT_NULL_HANDLE) ||
+ (h == QLA_TGT_SKIP_HANDLE) ||
+ (ha->tgt.cmds[h-1] != NULL));
+
+ if (h != QLA_TGT_NULL_HANDLE)
+ ha->tgt.current_handle = h;
+
+ return h;
+}
+
+/* ha->hardware_lock supposed to be held on entry */
+static int qlt_24xx_build_ctio_pkt(struct qla_tgt_prm *prm,
+ struct scsi_qla_host *vha)
+{
+ uint32_t h;
+ struct ctio7_to_24xx *pkt;
+ struct qla_hw_data *ha = vha->hw;
+ struct atio_from_isp *atio = &prm->cmd->atio;
+
+ pkt = (struct ctio7_to_24xx *)vha->req->ring_ptr;
+ prm->pkt = pkt;
+ memset(pkt, 0, sizeof(*pkt));
+
+ pkt->entry_type = CTIO_TYPE7;
+ pkt->entry_count = (uint8_t)prm->req_cnt;
+ pkt->vp_index = vha->vp_idx;
+
+ h = qlt_make_handle(vha);
+ if (unlikely(h == QLA_TGT_NULL_HANDLE)) {
+ /*
+ * CTIO type 7 from the firmware doesn't provide a way to
+ * know the initiator's LOOP ID, hence we can't find
+ * the session and, so, the command.
+ */
+ return -EAGAIN;
+ } else
+ ha->tgt.cmds[h-1] = prm->cmd;
+
+ pkt->handle = h | CTIO_COMPLETION_HANDLE_MARK;
+ pkt->nport_handle = prm->cmd->loop_id;
+ pkt->timeout = __constant_cpu_to_le16(QLA_TGT_TIMEOUT);
+ pkt->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2];
+ pkt->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1];
+ pkt->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0];
+ pkt->exchange_addr = atio->u.isp24.exchange_addr;
+ pkt->u.status0.flags |= (atio->u.isp24.attr << 9);
+ pkt->u.status0.ox_id = swab16(atio->u.isp24.fcp_hdr.ox_id);
+ pkt->u.status0.relative_offset = cpu_to_le32(prm->cmd->offset);
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe00c,
+ "qla_target(%d): handle(cmd) -> %08x, timeout %d, ox_id %#x\n",
+ vha->vp_idx, pkt->handle, QLA_TGT_TIMEOUT,
+ le16_to_cpu(pkt->u.status0.ox_id));
+ return 0;
+}
+
+/*
+ * ha->hardware_lock supposed to be held on entry. We have already made sure
+ * that there is sufficient amount of request entries to not drop it.
+ */
+static void qlt_load_cont_data_segments(struct qla_tgt_prm *prm,
+ struct scsi_qla_host *vha)
+{
+ int cnt;
+ uint32_t *dword_ptr;
+ int enable_64bit_addressing = prm->tgt->tgt_enable_64bit_addr;
+
+ /* Build continuation packets */
+ while (prm->seg_cnt > 0) {
+ cont_a64_entry_t *cont_pkt64 =
+ (cont_a64_entry_t *)qlt_get_req_pkt(vha);
+
+ /*
+ * Make sure that from cont_pkt64 none of
+ * 64-bit specific fields used for 32-bit
+ * addressing. Cast to (cont_entry_t *) for
+ * that.
+ */
+
+ memset(cont_pkt64, 0, sizeof(*cont_pkt64));
+
+ cont_pkt64->entry_count = 1;
+ cont_pkt64->sys_define = 0;
+
+ if (enable_64bit_addressing) {
+ cont_pkt64->entry_type = CONTINUE_A64_TYPE;
+ dword_ptr =
+ (uint32_t *)&cont_pkt64->dseg_0_address;
+ } else {
+ cont_pkt64->entry_type = CONTINUE_TYPE;
+ dword_ptr =
+ (uint32_t *)&((cont_entry_t *)
+ cont_pkt64)->dseg_0_address;
+ }
+
+ /* Load continuation entry data segments */
+ for (cnt = 0;
+ cnt < prm->tgt->datasegs_per_cont && prm->seg_cnt;
+ cnt++, prm->seg_cnt--) {
+ *dword_ptr++ =
+ cpu_to_le32(pci_dma_lo32
+ (sg_dma_address(prm->sg)));
+ if (enable_64bit_addressing) {
+ *dword_ptr++ =
+ cpu_to_le32(pci_dma_hi32
+ (sg_dma_address
+ (prm->sg)));
+ }
+ *dword_ptr++ = cpu_to_le32(sg_dma_len(prm->sg));
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe00d,
+ "S/G Segment Cont. phys_addr=%llx:%llx, len=%d\n",
+ (long long unsigned int)
+ pci_dma_hi32(sg_dma_address(prm->sg)),
+ (long long unsigned int)
+ pci_dma_lo32(sg_dma_address(prm->sg)),
+ (int)sg_dma_len(prm->sg));
+
+ prm->sg = sg_next(prm->sg);
+ }
+ }
+}
+
+/*
+ * ha->hardware_lock supposed to be held on entry. We have already made sure
+ * that there is sufficient amount of request entries to not drop it.
+ */
+static void qlt_load_data_segments(struct qla_tgt_prm *prm,
+ struct scsi_qla_host *vha)
+{
+ int cnt;
+ uint32_t *dword_ptr;
+ int enable_64bit_addressing = prm->tgt->tgt_enable_64bit_addr;
+ struct ctio7_to_24xx *pkt24 = (struct ctio7_to_24xx *)prm->pkt;
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe00e,
+ "iocb->scsi_status=%x, iocb->flags=%x\n",
+ le16_to_cpu(pkt24->u.status0.scsi_status),
+ le16_to_cpu(pkt24->u.status0.flags));
+
+ pkt24->u.status0.transfer_length = cpu_to_le32(prm->cmd->bufflen);
+
+ /* Setup packet address segment pointer */
+ dword_ptr = pkt24->u.status0.dseg_0_address;
+
+ /* Set total data segment count */
+ if (prm->seg_cnt)
+ pkt24->dseg_count = cpu_to_le16(prm->seg_cnt);
+
+ if (prm->seg_cnt == 0) {
+ /* No data transfer */
+ *dword_ptr++ = 0;
+ *dword_ptr = 0;
+ return;
+ }
+
+ /* If scatter gather */
+ ql_dbg(ql_dbg_tgt, vha, 0xe00f, "%s", "Building S/G data segments...");
+
+ /* Load command entry data segments */
+ for (cnt = 0;
+ (cnt < prm->tgt->datasegs_per_cmd) && prm->seg_cnt;
+ cnt++, prm->seg_cnt--) {
+ *dword_ptr++ =
+ cpu_to_le32(pci_dma_lo32(sg_dma_address(prm->sg)));
+ if (enable_64bit_addressing) {
+ *dword_ptr++ =
+ cpu_to_le32(pci_dma_hi32(
+ sg_dma_address(prm->sg)));
+ }
+ *dword_ptr++ = cpu_to_le32(sg_dma_len(prm->sg));
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe010,
+ "S/G Segment phys_addr=%llx:%llx, len=%d\n",
+ (long long unsigned int)pci_dma_hi32(sg_dma_address(
+ prm->sg)),
+ (long long unsigned int)pci_dma_lo32(sg_dma_address(
+ prm->sg)),
+ (int)sg_dma_len(prm->sg));
+
+ prm->sg = sg_next(prm->sg);
+ }
+
+ qlt_load_cont_data_segments(prm, vha);
+}
+
+static inline int qlt_has_data(struct qla_tgt_cmd *cmd)
+{
+ return cmd->bufflen > 0;
+}
+
+/*
+ * Called without ha->hardware_lock held
+ */
+static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd,
+ struct qla_tgt_prm *prm, int xmit_type, uint8_t scsi_status,
+ uint32_t *full_req_cnt)
+{
+ struct qla_tgt *tgt = cmd->tgt;
+ struct scsi_qla_host *vha = tgt->vha;
+ struct qla_hw_data *ha = vha->hw;
+ struct se_cmd *se_cmd = &cmd->se_cmd;
+
+ if (unlikely(cmd->aborted)) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf014,
+ "qla_target(%d): terminating exchange "
+ "for aborted cmd=%p (se_cmd=%p, tag=%d)", vha->vp_idx, cmd,
+ se_cmd, cmd->tag);
+
+ cmd->state = QLA_TGT_STATE_ABORTED;
+
+ qlt_send_term_exchange(vha, cmd, &cmd->atio, 0);
+
+ /* !! At this point cmd could be already freed !! */
+ return QLA_TGT_PRE_XMIT_RESP_CMD_ABORTED;
+ }
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe011, "qla_target(%d): tag=%u\n",
+ vha->vp_idx, cmd->tag);
+
+ prm->cmd = cmd;
+ prm->tgt = tgt;
+ prm->rq_result = scsi_status;
+ prm->sense_buffer = &cmd->sense_buffer[0];
+ prm->sense_buffer_len = TRANSPORT_SENSE_BUFFER;
+ prm->sg = NULL;
+ prm->seg_cnt = -1;
+ prm->req_cnt = 1;
+ prm->add_status_pkt = 0;
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe012, "rq_result=%x, xmit_type=%x\n",
+ prm->rq_result, xmit_type);
+
+ /* Send marker if required */
+ if (qlt_issue_marker(vha, 0) != QLA_SUCCESS)
+ return -EFAULT;
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe013, "CTIO start: vha(%d)\n", vha->vp_idx);
+
+ if ((xmit_type & QLA_TGT_XMIT_DATA) && qlt_has_data(cmd)) {
+ if (qlt_pci_map_calc_cnt(prm) != 0)
+ return -EAGAIN;
+ }
+
+ *full_req_cnt = prm->req_cnt;
+
+ if (se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) {
+ prm->residual = se_cmd->residual_count;
+ ql_dbg(ql_dbg_tgt, vha, 0xe014,
+ "Residual underflow: %d (tag %d, "
+ "op %x, bufflen %d, rq_result %x)\n", prm->residual,
+ cmd->tag, se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
+ cmd->bufflen, prm->rq_result);
+ prm->rq_result |= SS_RESIDUAL_UNDER;
+ } else if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
+ prm->residual = se_cmd->residual_count;
+ ql_dbg(ql_dbg_tgt, vha, 0xe015,
+ "Residual overflow: %d (tag %d, "
+ "op %x, bufflen %d, rq_result %x)\n", prm->residual,
+ cmd->tag, se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
+ cmd->bufflen, prm->rq_result);
+ prm->rq_result |= SS_RESIDUAL_OVER;
+ }
+
+ if (xmit_type & QLA_TGT_XMIT_STATUS) {
+ /*
+ * If QLA_TGT_XMIT_DATA is not set, add_status_pkt will be
+ * ignored in *xmit_response() below
+ */
+ if (qlt_has_data(cmd)) {
+ if (QLA_TGT_SENSE_VALID(prm->sense_buffer) ||
+ (IS_FWI2_CAPABLE(ha) &&
+ (prm->rq_result != 0))) {
+ prm->add_status_pkt = 1;
+ (*full_req_cnt)++;
+ }
+ }
+ }
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe016,
+ "req_cnt=%d, full_req_cnt=%d, add_status_pkt=%d\n",
+ prm->req_cnt, *full_req_cnt, prm->add_status_pkt);
+
+ return 0;
+}
+
+static inline int qlt_need_explicit_conf(struct qla_hw_data *ha,
+ struct qla_tgt_cmd *cmd, int sending_sense)
+{
+ if (ha->tgt.enable_class_2)
+ return 0;
+
+ if (sending_sense)
+ return cmd->conf_compl_supported;
+ else
+ return ha->tgt.enable_explicit_conf &&
+ cmd->conf_compl_supported;
+}
+
+#ifdef CONFIG_QLA_TGT_DEBUG_SRR
+/*
+ * Original taken from the XFS code
+ */
+static unsigned long qlt_srr_random(void)
+{
+ static int Inited;
+ static unsigned long RandomValue;
+ static DEFINE_SPINLOCK(lock);
+ /* cycles pseudo-randomly through all values between 1 and 2^31 - 2 */
+ register long rv;
+ register long lo;
+ register long hi;
+ unsigned long flags;
+
+ spin_lock_irqsave(&lock, flags);
+ if (!Inited) {
+ RandomValue = jiffies;
+ Inited = 1;
+ }
+ rv = RandomValue;
+ hi = rv / 127773;
+ lo = rv % 127773;
+ rv = 16807 * lo - 2836 * hi;
+ if (rv <= 0)
+ rv += 2147483647;
+ RandomValue = rv;
+ spin_unlock_irqrestore(&lock, flags);
+ return rv;
+}
+
+static void qlt_check_srr_debug(struct qla_tgt_cmd *cmd, int *xmit_type)
+{
+#if 0 /* This is not a real status packets lost, so it won't lead to SRR */
+ if ((*xmit_type & QLA_TGT_XMIT_STATUS) && (qlt_srr_random() % 200)
+ == 50) {
+ *xmit_type &= ~QLA_TGT_XMIT_STATUS;
+ ql_dbg(ql_dbg_tgt_mgt, cmd->vha, 0xf015,
+ "Dropping cmd %p (tag %d) status", cmd, cmd->tag);
+ }
+#endif
+ /*
+ * It's currently not possible to simulate SRRs for FCP_WRITE without
+ * a physical link layer failure, so don't even try here..
+ */
+ if (cmd->dma_data_direction != DMA_FROM_DEVICE)
+ return;
+
+ if (qlt_has_data(cmd) && (cmd->sg_cnt > 1) &&
+ ((qlt_srr_random() % 100) == 20)) {
+ int i, leave = 0;
+ unsigned int tot_len = 0;
+
+ while (leave == 0)
+ leave = qlt_srr_random() % cmd->sg_cnt;
+
+ for (i = 0; i < leave; i++)
+ tot_len += cmd->sg[i].length;
+
+ ql_dbg(ql_dbg_tgt_mgt, cmd->vha, 0xf016,
+ "Cutting cmd %p (tag %d) buffer"
+ " tail to len %d, sg_cnt %d (cmd->bufflen %d,"
+ " cmd->sg_cnt %d)", cmd, cmd->tag, tot_len, leave,
+ cmd->bufflen, cmd->sg_cnt);
+
+ cmd->bufflen = tot_len;
+ cmd->sg_cnt = leave;
+ }
+
+ if (qlt_has_data(cmd) && ((qlt_srr_random() % 100) == 70)) {
+ unsigned int offset = qlt_srr_random() % cmd->bufflen;
+
+ ql_dbg(ql_dbg_tgt_mgt, cmd->vha, 0xf017,
+ "Cutting cmd %p (tag %d) buffer head "
+ "to offset %d (cmd->bufflen %d)", cmd, cmd->tag, offset,
+ cmd->bufflen);
+ if (offset == 0)
+ *xmit_type &= ~QLA_TGT_XMIT_DATA;
+ else if (qlt_set_data_offset(cmd, offset)) {
+ ql_dbg(ql_dbg_tgt_mgt, cmd->vha, 0xf018,
+ "qlt_set_data_offset() failed (tag %d)", cmd->tag);
+ }
+ }
+}
+#else
+static inline void qlt_check_srr_debug(struct qla_tgt_cmd *cmd, int *xmit_type)
+{}
+#endif
+
+static void qlt_24xx_init_ctio_to_isp(struct ctio7_to_24xx *ctio,
+ struct qla_tgt_prm *prm)
+{
+ prm->sense_buffer_len = min_t(uint32_t, prm->sense_buffer_len,
+ (uint32_t)sizeof(ctio->u.status1.sense_data));
+ ctio->u.status0.flags |=
+ __constant_cpu_to_le16(CTIO7_FLAGS_SEND_STATUS);
+ if (qlt_need_explicit_conf(prm->tgt->ha, prm->cmd, 0)) {
+ ctio->u.status0.flags |= __constant_cpu_to_le16(
+ CTIO7_FLAGS_EXPLICIT_CONFORM |
+ CTIO7_FLAGS_CONFORM_REQ);
+ }
+ ctio->u.status0.residual = cpu_to_le32(prm->residual);
+ ctio->u.status0.scsi_status = cpu_to_le16(prm->rq_result);
+ if (QLA_TGT_SENSE_VALID(prm->sense_buffer)) {
+ int i;
+
+ if (qlt_need_explicit_conf(prm->tgt->ha, prm->cmd, 1)) {
+ if (prm->cmd->se_cmd.scsi_status != 0) {
+ ql_dbg(ql_dbg_tgt, prm->cmd->vha, 0xe017,
+ "Skipping EXPLICIT_CONFORM and "
+ "CTIO7_FLAGS_CONFORM_REQ for FCP READ w/ "
+ "non GOOD status\n");
+ goto skip_explict_conf;
+ }
+ ctio->u.status1.flags |= __constant_cpu_to_le16(
+ CTIO7_FLAGS_EXPLICIT_CONFORM |
+ CTIO7_FLAGS_CONFORM_REQ);
+ }
+skip_explict_conf:
+ ctio->u.status1.flags &=
+ ~__constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
+ ctio->u.status1.flags |=
+ __constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
+ ctio->u.status1.scsi_status |=
+ __constant_cpu_to_le16(SS_SENSE_LEN_VALID);
+ ctio->u.status1.sense_length =
+ cpu_to_le16(prm->sense_buffer_len);
+ for (i = 0; i < prm->sense_buffer_len/4; i++)
+ ((uint32_t *)ctio->u.status1.sense_data)[i] =
+ cpu_to_be32(((uint32_t *)prm->sense_buffer)[i]);
+#if 0
+ if (unlikely((prm->sense_buffer_len % 4) != 0)) {
+ static int q;
+ if (q < 10) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe04f,
+ "qla_target(%d): %d bytes of sense "
+ "lost", prm->tgt->ha->vp_idx,
+ prm->sense_buffer_len % 4);
+ q++;
+ }
+ }
+#endif
+ } else {
+ ctio->u.status1.flags &=
+ ~__constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
+ ctio->u.status1.flags |=
+ __constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
+ ctio->u.status1.sense_length = 0;
+ memset(ctio->u.status1.sense_data, 0,
+ sizeof(ctio->u.status1.sense_data));
+ }
+
+ /* Sense with len > 24, is it possible ??? */
+}
+
+/*
+ * Callback to setup response of xmit_type of QLA_TGT_XMIT_DATA and *
+ * QLA_TGT_XMIT_STATUS for >= 24xx silicon
+ */
+int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type,
+ uint8_t scsi_status)
+{
+ struct scsi_qla_host *vha = cmd->vha;
+ struct qla_hw_data *ha = vha->hw;
+ struct ctio7_to_24xx *pkt;
+ struct qla_tgt_prm prm;
+ uint32_t full_req_cnt = 0;
+ unsigned long flags = 0;
+ int res;
+
+ memset(&prm, 0, sizeof(prm));
+ qlt_check_srr_debug(cmd, &xmit_type);
+
+ ql_dbg(ql_dbg_tgt, cmd->vha, 0xe018,
+ "is_send_status=%d, cmd->bufflen=%d, cmd->sg_cnt=%d, "
+ "cmd->dma_data_direction=%d\n", (xmit_type & QLA_TGT_XMIT_STATUS) ?
+ 1 : 0, cmd->bufflen, cmd->sg_cnt, cmd->dma_data_direction);
+
+ res = qlt_pre_xmit_response(cmd, &prm, xmit_type, scsi_status,
+ &full_req_cnt);
+ if (unlikely(res != 0)) {
+ if (res == QLA_TGT_PRE_XMIT_RESP_CMD_ABORTED)
+ return 0;
+
+ return res;
+ }
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+
+ /* Does F/W have an IOCBs for this request */
+ res = qlt_check_reserve_free_req(vha, full_req_cnt);
+ if (unlikely(res))
+ goto out_unmap_unlock;
+
+ res = qlt_24xx_build_ctio_pkt(&prm, vha);
+ if (unlikely(res != 0))
+ goto out_unmap_unlock;
+
+
+ pkt = (struct ctio7_to_24xx *)prm.pkt;
+
+ if (qlt_has_data(cmd) && (xmit_type & QLA_TGT_XMIT_DATA)) {
+ pkt->u.status0.flags |=
+ __constant_cpu_to_le16(CTIO7_FLAGS_DATA_IN |
+ CTIO7_FLAGS_STATUS_MODE_0);
+
+ qlt_load_data_segments(&prm, vha);
+
+ if (prm.add_status_pkt == 0) {
+ if (xmit_type & QLA_TGT_XMIT_STATUS) {
+ pkt->u.status0.scsi_status =
+ cpu_to_le16(prm.rq_result);
+ pkt->u.status0.residual =
+ cpu_to_le32(prm.residual);
+ pkt->u.status0.flags |= __constant_cpu_to_le16(
+ CTIO7_FLAGS_SEND_STATUS);
+ if (qlt_need_explicit_conf(ha, cmd, 0)) {
+ pkt->u.status0.flags |=
+ __constant_cpu_to_le16(
+ CTIO7_FLAGS_EXPLICIT_CONFORM |
+ CTIO7_FLAGS_CONFORM_REQ);
+ }
+ }
+
+ } else {
+ /*
+ * We have already made sure that there is sufficient
+ * amount of request entries to not drop HW lock in
+ * req_pkt().
+ */
+ struct ctio7_to_24xx *ctio =
+ (struct ctio7_to_24xx *)qlt_get_req_pkt(vha);
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe019,
+ "Building additional status packet\n");
+
+ memcpy(ctio, pkt, sizeof(*ctio));
+ ctio->entry_count = 1;
+ ctio->dseg_count = 0;
+ ctio->u.status1.flags &= ~__constant_cpu_to_le16(
+ CTIO7_FLAGS_DATA_IN);
+
+ /* Real finish is ctio_m1's finish */
+ pkt->handle |= CTIO_INTERMEDIATE_HANDLE_MARK;
+ pkt->u.status0.flags |= __constant_cpu_to_le16(
+ CTIO7_FLAGS_DONT_RET_CTIO);
+ qlt_24xx_init_ctio_to_isp((struct ctio7_to_24xx *)ctio,
+ &prm);
+ pr_debug("Status CTIO7: %p\n", ctio);
+ }
+ } else
+ qlt_24xx_init_ctio_to_isp(pkt, &prm);
+
+
+ cmd->state = QLA_TGT_STATE_PROCESSED; /* Mid-level is done processing */
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe01a,
+ "Xmitting CTIO7 response pkt for 24xx: %p scsi_status: 0x%02x\n",
+ pkt, scsi_status);
+
+ qla2x00_start_iocbs(vha, vha->req);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ return 0;
+
+out_unmap_unlock:
+ if (cmd->sg_mapped)
+ qlt_unmap_sg(vha, cmd);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ return res;
+}
+EXPORT_SYMBOL(qlt_xmit_response);
+
+int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd)
+{
+ struct ctio7_to_24xx *pkt;
+ struct scsi_qla_host *vha = cmd->vha;
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt *tgt = cmd->tgt;
+ struct qla_tgt_prm prm;
+ unsigned long flags;
+ int res = 0;
+
+ memset(&prm, 0, sizeof(prm));
+ prm.cmd = cmd;
+ prm.tgt = tgt;
+ prm.sg = NULL;
+ prm.req_cnt = 1;
+
+ /* Send marker if required */
+ if (qlt_issue_marker(vha, 0) != QLA_SUCCESS)
+ return -EIO;
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe01b, "CTIO_start: vha(%d)",
+ (int)vha->vp_idx);
+
+ /* Calculate number of entries and segments required */
+ if (qlt_pci_map_calc_cnt(&prm) != 0)
+ return -EAGAIN;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+
+ /* Does F/W have an IOCBs for this request */
+ res = qlt_check_reserve_free_req(vha, prm.req_cnt);
+ if (res != 0)
+ goto out_unlock_free_unmap;
+
+ res = qlt_24xx_build_ctio_pkt(&prm, vha);
+ if (unlikely(res != 0))
+ goto out_unlock_free_unmap;
+ pkt = (struct ctio7_to_24xx *)prm.pkt;
+ pkt->u.status0.flags |= __constant_cpu_to_le16(CTIO7_FLAGS_DATA_OUT |
+ CTIO7_FLAGS_STATUS_MODE_0);
+ qlt_load_data_segments(&prm, vha);
+
+ cmd->state = QLA_TGT_STATE_NEED_DATA;
+
+ qla2x00_start_iocbs(vha, vha->req);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ return res;
+
+out_unlock_free_unmap:
+ if (cmd->sg_mapped)
+ qlt_unmap_sg(vha, cmd);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ return res;
+}
+EXPORT_SYMBOL(qlt_rdy_to_xfer);
+
+/* If hardware_lock held on entry, might drop it, then reaquire */
+/* This function sends the appropriate CTIO to ISP 2xxx or 24xx */
+static int __qlt_send_term_exchange(struct scsi_qla_host *vha,
+ struct qla_tgt_cmd *cmd,
+ struct atio_from_isp *atio)
+{
+ struct ctio7_to_24xx *ctio24;
+ struct qla_hw_data *ha = vha->hw;
+ request_t *pkt;
+ int ret = 0;
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe01c, "Sending TERM EXCH CTIO (ha=%p)\n", ha);
+
+ pkt = (request_t *)qla2x00_alloc_iocbs(vha, NULL);
+ if (pkt == NULL) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe050,
+ "qla_target(%d): %s failed: unable to allocate "
+ "request packet\n", vha->vp_idx, __func__);
+ return -ENOMEM;
+ }
+
+ if (cmd != NULL) {
+ if (cmd->state < QLA_TGT_STATE_PROCESSED) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe051,
+ "qla_target(%d): Terminating cmd %p with "
+ "incorrect state %d\n", vha->vp_idx, cmd,
+ cmd->state);
+ } else
+ ret = 1;
+ }
+
+ pkt->entry_count = 1;
+ pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
+
+ ctio24 = (struct ctio7_to_24xx *)pkt;
+ ctio24->entry_type = CTIO_TYPE7;
+ ctio24->nport_handle = cmd ? cmd->loop_id : CTIO7_NHANDLE_UNRECOGNIZED;
+ ctio24->timeout = __constant_cpu_to_le16(QLA_TGT_TIMEOUT);
+ ctio24->vp_index = vha->vp_idx;
+ ctio24->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2];
+ ctio24->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1];
+ ctio24->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0];
+ ctio24->exchange_addr = atio->u.isp24.exchange_addr;
+ ctio24->u.status1.flags = (atio->u.isp24.attr << 9) |
+ __constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 |
+ CTIO7_FLAGS_TERMINATE);
+ ctio24->u.status1.ox_id = swab16(atio->u.isp24.fcp_hdr.ox_id);
+
+ /* Most likely, it isn't needed */
+ ctio24->u.status1.residual = get_unaligned((uint32_t *)
+ &atio->u.isp24.fcp_cmnd.add_cdb[
+ atio->u.isp24.fcp_cmnd.add_cdb_len]);
+ if (ctio24->u.status1.residual != 0)
+ ctio24->u.status1.scsi_status |= SS_RESIDUAL_UNDER;
+
+ qla2x00_start_iocbs(vha, vha->req);
+ return ret;
+}
+
+static void qlt_send_term_exchange(struct scsi_qla_host *vha,
+ struct qla_tgt_cmd *cmd, struct atio_from_isp *atio, int ha_locked)
+{
+ unsigned long flags;
+ int rc;
+
+ if (qlt_issue_marker(vha, ha_locked) < 0)
+ return;
+
+ if (ha_locked) {
+ rc = __qlt_send_term_exchange(vha, cmd, atio);
+ goto done;
+ }
+ spin_lock_irqsave(&vha->hw->hardware_lock, flags);
+ rc = __qlt_send_term_exchange(vha, cmd, atio);
+ spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
+done:
+ if (rc == 1) {
+ if (!ha_locked && !in_interrupt())
+ msleep(250); /* just in case */
+
+ vha->hw->tgt.tgt_ops->free_cmd(cmd);
+ }
+}
+
+void qlt_free_cmd(struct qla_tgt_cmd *cmd)
+{
+ BUG_ON(cmd->sg_mapped);
+
+ if (unlikely(cmd->free_sg))
+ kfree(cmd->sg);
+ kmem_cache_free(qla_tgt_cmd_cachep, cmd);
+}
+EXPORT_SYMBOL(qlt_free_cmd);
+
+/* ha->hardware_lock supposed to be held on entry */
+static int qlt_prepare_srr_ctio(struct scsi_qla_host *vha,
+ struct qla_tgt_cmd *cmd, void *ctio)
+{
+ struct qla_tgt_srr_ctio *sc;
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt *tgt = ha->tgt.qla_tgt;
+ struct qla_tgt_srr_imm *imm;
+
+ tgt->ctio_srr_id++;
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf019,
+ "qla_target(%d): CTIO with SRR status received\n", vha->vp_idx);
+
+ if (!ctio) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf055,
+ "qla_target(%d): SRR CTIO, but ctio is NULL\n",
+ vha->vp_idx);
+ return -EINVAL;
+ }
+
+ sc = kzalloc(sizeof(*sc), GFP_ATOMIC);
+ if (sc != NULL) {
+ sc->cmd = cmd;
+ /* IRQ is already OFF */
+ spin_lock(&tgt->srr_lock);
+ sc->srr_id = tgt->ctio_srr_id;
+ list_add_tail(&sc->srr_list_entry,
+ &tgt->srr_ctio_list);
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01a,
+ "CTIO SRR %p added (id %d)\n", sc, sc->srr_id);
+ if (tgt->imm_srr_id == tgt->ctio_srr_id) {
+ int found = 0;
+ list_for_each_entry(imm, &tgt->srr_imm_list,
+ srr_list_entry) {
+ if (imm->srr_id == sc->srr_id) {
+ found = 1;
+ break;
+ }
+ }
+ if (found) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01b,
+ "Scheduling srr work\n");
+ schedule_work(&tgt->srr_work);
+ } else {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf056,
+ "qla_target(%d): imm_srr_id "
+ "== ctio_srr_id (%d), but there is no "
+ "corresponding SRR IMM, deleting CTIO "
+ "SRR %p\n", vha->vp_idx,
+ tgt->ctio_srr_id, sc);
+ list_del(&sc->srr_list_entry);
+ spin_unlock(&tgt->srr_lock);
+
+ kfree(sc);
+ return -EINVAL;
+ }
+ }
+ spin_unlock(&tgt->srr_lock);
+ } else {
+ struct qla_tgt_srr_imm *ti;
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf057,
+ "qla_target(%d): Unable to allocate SRR CTIO entry\n",
+ vha->vp_idx);
+ spin_lock(&tgt->srr_lock);
+ list_for_each_entry_safe(imm, ti, &tgt->srr_imm_list,
+ srr_list_entry) {
+ if (imm->srr_id == tgt->ctio_srr_id) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01c,
+ "IMM SRR %p deleted (id %d)\n",
+ imm, imm->srr_id);
+ list_del(&imm->srr_list_entry);
+ qlt_reject_free_srr_imm(vha, imm, 1);
+ }
+ }
+ spin_unlock(&tgt->srr_lock);
+
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+/*
+ * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
+ */
+static int qlt_term_ctio_exchange(struct scsi_qla_host *vha, void *ctio,
+ struct qla_tgt_cmd *cmd, uint32_t status)
+{
+ int term = 0;
+
+ if (ctio != NULL) {
+ struct ctio7_from_24xx *c = (struct ctio7_from_24xx *)ctio;
+ term = !(c->flags &
+ __constant_cpu_to_le16(OF_TERM_EXCH));
+ } else
+ term = 1;
+
+ if (term)
+ qlt_send_term_exchange(vha, cmd, &cmd->atio, 1);
+
+ return term;
+}
+
+/* ha->hardware_lock supposed to be held on entry */
+static inline struct qla_tgt_cmd *qlt_get_cmd(struct scsi_qla_host *vha,
+ uint32_t handle)
+{
+ struct qla_hw_data *ha = vha->hw;
+
+ handle--;
+ if (ha->tgt.cmds[handle] != NULL) {
+ struct qla_tgt_cmd *cmd = ha->tgt.cmds[handle];
+ ha->tgt.cmds[handle] = NULL;
+ return cmd;
+ } else
+ return NULL;
+}
+
+/* ha->hardware_lock supposed to be held on entry */
+static struct qla_tgt_cmd *qlt_ctio_to_cmd(struct scsi_qla_host *vha,
+ uint32_t handle, void *ctio)
+{
+ struct qla_tgt_cmd *cmd = NULL;
+
+ /* Clear out internal marks */
+ handle &= ~(CTIO_COMPLETION_HANDLE_MARK |
+ CTIO_INTERMEDIATE_HANDLE_MARK);
+
+ if (handle != QLA_TGT_NULL_HANDLE) {
+ if (unlikely(handle == QLA_TGT_SKIP_HANDLE)) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe01d, "%s",
+ "SKIP_HANDLE CTIO\n");
+ return NULL;
+ }
+ /* handle-1 is actually used */
+ if (unlikely(handle > MAX_OUTSTANDING_COMMANDS)) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe052,
+ "qla_target(%d): Wrong handle %x received\n",
+ vha->vp_idx, handle);
+ return NULL;
+ }
+ cmd = qlt_get_cmd(vha, handle);
+ if (unlikely(cmd == NULL)) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe053,
+ "qla_target(%d): Suspicious: unable to "
+ "find the command with handle %x\n", vha->vp_idx,
+ handle);
+ return NULL;
+ }
+ } else if (ctio != NULL) {
+ /* We can't get loop ID from CTIO7 */
+ ql_dbg(ql_dbg_tgt, vha, 0xe054,
+ "qla_target(%d): Wrong CTIO received: QLA24xx doesn't "
+ "support NULL handles\n", vha->vp_idx);
+ return NULL;
+ }
+
+ return cmd;
+}
+
+/*
+ * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
+ */
+static void qlt_do_ctio_completion(struct scsi_qla_host *vha, uint32_t handle,
+ uint32_t status, void *ctio)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct se_cmd *se_cmd;
+ struct target_core_fabric_ops *tfo;
+ struct qla_tgt_cmd *cmd;
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe01e,
+ "qla_target(%d): handle(ctio %p status %#x) <- %08x\n",
+ vha->vp_idx, ctio, status, handle);
+
+ if (handle & CTIO_INTERMEDIATE_HANDLE_MARK) {
+ /* That could happen only in case of an error/reset/abort */
+ if (status != CTIO_SUCCESS) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01d,
+ "Intermediate CTIO received"
+ " (status %x)\n", status);
+ }
+ return;
+ }
+
+ cmd = qlt_ctio_to_cmd(vha, handle, ctio);
+ if (cmd == NULL) {
+ if (status != CTIO_SUCCESS)
+ qlt_term_ctio_exchange(vha, ctio, NULL, status);
+ return;
+ }
+ se_cmd = &cmd->se_cmd;
+ tfo = se_cmd->se_tfo;
+
+ if (cmd->sg_mapped)
+ qlt_unmap_sg(vha, cmd);
+
+ if (unlikely(status != CTIO_SUCCESS)) {
+ switch (status & 0xFFFF) {
+ case CTIO_LIP_RESET:
+ case CTIO_TARGET_RESET:
+ case CTIO_ABORTED:
+ case CTIO_TIMEOUT:
+ case CTIO_INVALID_RX_ID:
+ /* They are OK */
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf058,
+ "qla_target(%d): CTIO with "
+ "status %#x received, state %x, se_cmd %p, "
+ "(LIP_RESET=e, ABORTED=2, TARGET_RESET=17, "
+ "TIMEOUT=b, INVALID_RX_ID=8)\n", vha->vp_idx,
+ status, cmd->state, se_cmd);
+ break;
+
+ case CTIO_PORT_LOGGED_OUT:
+ case CTIO_PORT_UNAVAILABLE:
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf059,
+ "qla_target(%d): CTIO with PORT LOGGED "
+ "OUT (29) or PORT UNAVAILABLE (28) status %x "
+ "received (state %x, se_cmd %p)\n", vha->vp_idx,
+ status, cmd->state, se_cmd);
+ break;
+
+ case CTIO_SRR_RECEIVED:
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05a,
+ "qla_target(%d): CTIO with SRR_RECEIVED"
+ " status %x received (state %x, se_cmd %p)\n",
+ vha->vp_idx, status, cmd->state, se_cmd);
+ if (qlt_prepare_srr_ctio(vha, cmd, ctio) != 0)
+ break;
+ else
+ return;
+
+ default:
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05b,
+ "qla_target(%d): CTIO with error status "
+ "0x%x received (state %x, se_cmd %p\n",
+ vha->vp_idx, status, cmd->state, se_cmd);
+ break;
+ }
+
+ if (cmd->state != QLA_TGT_STATE_NEED_DATA)
+ if (qlt_term_ctio_exchange(vha, ctio, cmd, status))
+ return;
+ }
+
+ if (cmd->state == QLA_TGT_STATE_PROCESSED) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe01f, "Command %p finished\n", cmd);
+ } else if (cmd->state == QLA_TGT_STATE_NEED_DATA) {
+ int rx_status = 0;
+
+ cmd->state = QLA_TGT_STATE_DATA_IN;
+
+ if (unlikely(status != CTIO_SUCCESS))
+ rx_status = -EIO;
+ else
+ cmd->write_data_transferred = 1;
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe020,
+ "Data received, context %x, rx_status %d\n",
+ 0x0, rx_status);
+
+ ha->tgt.tgt_ops->handle_data(cmd);
+ return;
+ } else if (cmd->state == QLA_TGT_STATE_ABORTED) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01e,
+ "Aborted command %p (tag %d) finished\n", cmd, cmd->tag);
+ } else {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05c,
+ "qla_target(%d): A command in state (%d) should "
+ "not return a CTIO complete\n", vha->vp_idx, cmd->state);
+ }
+
+ if (unlikely(status != CTIO_SUCCESS)) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01f, "Finishing failed CTIO\n");
+ dump_stack();
+ }
+
+ ha->tgt.tgt_ops->free_cmd(cmd);
+}
+
+/* ha->hardware_lock supposed to be held on entry */
+/* called via callback from qla2xxx */
+void qlt_ctio_completion(struct scsi_qla_host *vha, uint32_t handle)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt *tgt = ha->tgt.qla_tgt;
+
+ if (likely(tgt == NULL)) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe021,
+ "CTIO, but target mode not enabled"
+ " (ha %d %p handle %#x)", vha->vp_idx, ha, handle);
+ return;
+ }
+
+ tgt->irq_cmd_count++;
+ qlt_do_ctio_completion(vha, handle, CTIO_SUCCESS, NULL);
+ tgt->irq_cmd_count--;
+}
+
+static inline int qlt_get_fcp_task_attr(struct scsi_qla_host *vha,
+ uint8_t task_codes)
+{
+ int fcp_task_attr;
+
+ switch (task_codes) {
+ case ATIO_SIMPLE_QUEUE:
+ fcp_task_attr = MSG_SIMPLE_TAG;
+ break;
+ case ATIO_HEAD_OF_QUEUE:
+ fcp_task_attr = MSG_HEAD_TAG;
+ break;
+ case ATIO_ORDERED_QUEUE:
+ fcp_task_attr = MSG_ORDERED_TAG;
+ break;
+ case ATIO_ACA_QUEUE:
+ fcp_task_attr = MSG_ACA_TAG;
+ break;
+ case ATIO_UNTAGGED:
+ fcp_task_attr = MSG_SIMPLE_TAG;
+ break;
+ default:
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05d,
+ "qla_target: unknown task code %x, use ORDERED instead\n",
+ task_codes);
+ fcp_task_attr = MSG_ORDERED_TAG;
+ break;
+ }
+
+ return fcp_task_attr;
+}
+
+static struct qla_tgt_sess *qlt_make_local_sess(struct scsi_qla_host *,
+ uint8_t *);
+/*
+ * Process context for I/O path into tcm_qla2xxx code
+ */
+static void qlt_do_work(struct work_struct *work)
+{
+ struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
+ scsi_qla_host_t *vha = cmd->vha;
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt *tgt = ha->tgt.qla_tgt;
+ struct qla_tgt_sess *sess = NULL;
+ struct atio_from_isp *atio = &cmd->atio;
+ unsigned char *cdb;
+ unsigned long flags;
+ uint32_t data_length;
+ int ret, fcp_task_attr, data_dir, bidi = 0;
+
+ if (tgt->tgt_stop)
+ goto out_term;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha,
+ atio->u.isp24.fcp_hdr.s_id);
+ if (sess) {
+ if (unlikely(sess->tearing_down)) {
+ sess = NULL;
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ goto out_term;
+ } else {
+ /*
+ * Do the extra kref_get() before dropping
+ * qla_hw_data->hardware_lock.
+ */
+ kref_get(&sess->se_sess->sess_kref);
+ }
+ }
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ if (unlikely(!sess)) {
+ uint8_t *s_id = atio->u.isp24.fcp_hdr.s_id;
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf022,
+ "qla_target(%d): Unable to find wwn login"
+ " (s_id %x:%x:%x), trying to create it manually\n",
+ vha->vp_idx, s_id[0], s_id[1], s_id[2]);
+
+ if (atio->u.raw.entry_count > 1) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf023,
+ "Dropping multy entry cmd %p\n", cmd);
+ goto out_term;
+ }
+
+ mutex_lock(&ha->tgt.tgt_mutex);
+ sess = qlt_make_local_sess(vha, s_id);
+ /* sess has an extra creation ref. */
+ mutex_unlock(&ha->tgt.tgt_mutex);
+
+ if (!sess)
+ goto out_term;
+ }
+
+ cmd->sess = sess;
+ cmd->loop_id = sess->loop_id;
+ cmd->conf_compl_supported = sess->conf_compl_supported;
+
+ cdb = &atio->u.isp24.fcp_cmnd.cdb[0];
+ cmd->tag = atio->u.isp24.exchange_addr;
+ cmd->unpacked_lun = scsilun_to_int(
+ (struct scsi_lun *)&atio->u.isp24.fcp_cmnd.lun);
+
+ if (atio->u.isp24.fcp_cmnd.rddata &&
+ atio->u.isp24.fcp_cmnd.wrdata) {
+ bidi = 1;
+ data_dir = DMA_TO_DEVICE;
+ } else if (atio->u.isp24.fcp_cmnd.rddata)
+ data_dir = DMA_FROM_DEVICE;
+ else if (atio->u.isp24.fcp_cmnd.wrdata)
+ data_dir = DMA_TO_DEVICE;
+ else
+ data_dir = DMA_NONE;
+
+ fcp_task_attr = qlt_get_fcp_task_attr(vha,
+ atio->u.isp24.fcp_cmnd.task_attr);
+ data_length = be32_to_cpu(get_unaligned((uint32_t *)
+ &atio->u.isp24.fcp_cmnd.add_cdb[
+ atio->u.isp24.fcp_cmnd.add_cdb_len]));
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe022,
+ "qla_target: START qla command: %p lun: 0x%04x (tag %d)\n",
+ cmd, cmd->unpacked_lun, cmd->tag);
+
+ ret = vha->hw->tgt.tgt_ops->handle_cmd(vha, cmd, cdb, data_length,
+ fcp_task_attr, data_dir, bidi);
+ if (ret != 0)
+ goto out_term;
+ /*
+ * Drop extra session reference from qla_tgt_handle_cmd_for_atio*(
+ */
+ ha->tgt.tgt_ops->put_sess(sess);
+ return;
+
+out_term:
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf020, "Terminating work cmd %p", cmd);
+ /*
+ * cmd has not sent to target yet, so pass NULL as the second argument
+ */
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ qlt_send_term_exchange(vha, NULL, &cmd->atio, 1);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ if (sess)
+ ha->tgt.tgt_ops->put_sess(sess);
+}
+
+/* ha->hardware_lock supposed to be held on entry */
+static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha,
+ struct atio_from_isp *atio)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt *tgt = ha->tgt.qla_tgt;
+ struct qla_tgt_cmd *cmd;
+
+ if (unlikely(tgt->tgt_stop)) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf021,
+ "New command while device %p is shutting down\n", tgt);
+ return -EFAULT;
+ }
+
+ cmd = kmem_cache_zalloc(qla_tgt_cmd_cachep, GFP_ATOMIC);
+ if (!cmd) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05e,
+ "qla_target(%d): Allocation of cmd failed\n", vha->vp_idx);
+ return -ENOMEM;
+ }
+
+ INIT_LIST_HEAD(&cmd->cmd_list);
+
+ memcpy(&cmd->atio, atio, sizeof(*atio));
+ cmd->state = QLA_TGT_STATE_NEW;
+ cmd->tgt = ha->tgt.qla_tgt;
+ cmd->vha = vha;
+
+ INIT_WORK(&cmd->work, qlt_do_work);
+ queue_work(qla_tgt_wq, &cmd->work);
+ return 0;
+
+}
+
+/* ha->hardware_lock supposed to be held on entry */
+static int qlt_issue_task_mgmt(struct qla_tgt_sess *sess, uint32_t lun,
+ int fn, void *iocb, int flags)
+{
+ struct scsi_qla_host *vha = sess->vha;
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt_mgmt_cmd *mcmd;
+ int res;
+ uint8_t tmr_func;
+
+ mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
+ if (!mcmd) {
+ ql_dbg(ql_dbg_tgt_tmr, vha, 0x10009,
+ "qla_target(%d): Allocation of management "
+ "command failed, some commands and their data could "
+ "leak\n", vha->vp_idx);
+ return -ENOMEM;
+ }
+ memset(mcmd, 0, sizeof(*mcmd));
+ mcmd->sess = sess;
+
+ if (iocb) {
+ memcpy(&mcmd->orig_iocb.imm_ntfy, iocb,
+ sizeof(mcmd->orig_iocb.imm_ntfy));
+ }
+ mcmd->tmr_func = fn;
+ mcmd->flags = flags;
+
+ switch (fn) {
+ case QLA_TGT_CLEAR_ACA:
+ ql_dbg(ql_dbg_tgt_tmr, vha, 0x10000,
+ "qla_target(%d): CLEAR_ACA received\n", sess->vha->vp_idx);
+ tmr_func = TMR_CLEAR_ACA;
+ break;
+
+ case QLA_TGT_TARGET_RESET:
+ ql_dbg(ql_dbg_tgt_tmr, vha, 0x10001,
+ "qla_target(%d): TARGET_RESET received\n",
+ sess->vha->vp_idx);
+ tmr_func = TMR_TARGET_WARM_RESET;
+ break;
+
+ case QLA_TGT_LUN_RESET:
+ ql_dbg(ql_dbg_tgt_tmr, vha, 0x10002,
+ "qla_target(%d): LUN_RESET received\n", sess->vha->vp_idx);
+ tmr_func = TMR_LUN_RESET;
+ break;
+
+ case QLA_TGT_CLEAR_TS:
+ ql_dbg(ql_dbg_tgt_tmr, vha, 0x10003,
+ "qla_target(%d): CLEAR_TS received\n", sess->vha->vp_idx);
+ tmr_func = TMR_CLEAR_TASK_SET;
+ break;
+
+ case QLA_TGT_ABORT_TS:
+ ql_dbg(ql_dbg_tgt_tmr, vha, 0x10004,
+ "qla_target(%d): ABORT_TS received\n", sess->vha->vp_idx);
+ tmr_func = TMR_ABORT_TASK_SET;
+ break;
+#if 0
+ case QLA_TGT_ABORT_ALL:
+ ql_dbg(ql_dbg_tgt_tmr, vha, 0x10005,
+ "qla_target(%d): Doing ABORT_ALL_TASKS\n",
+ sess->vha->vp_idx);
+ tmr_func = 0;
+ break;
+
+ case QLA_TGT_ABORT_ALL_SESS:
+ ql_dbg(ql_dbg_tgt_tmr, vha, 0x10006,
+ "qla_target(%d): Doing ABORT_ALL_TASKS_SESS\n",
+ sess->vha->vp_idx);
+ tmr_func = 0;
+ break;
+
+ case QLA_TGT_NEXUS_LOSS_SESS:
+ ql_dbg(ql_dbg_tgt_tmr, vha, 0x10007,
+ "qla_target(%d): Doing NEXUS_LOSS_SESS\n",
+ sess->vha->vp_idx);
+ tmr_func = 0;
+ break;
+
+ case QLA_TGT_NEXUS_LOSS:
+ ql_dbg(ql_dbg_tgt_tmr, vha, 0x10008,
+ "qla_target(%d): Doing NEXUS_LOSS\n", sess->vha->vp_idx);
+ tmr_func = 0;
+ break;
+#endif
+ default:
+ ql_dbg(ql_dbg_tgt_tmr, vha, 0x1000a,
+ "qla_target(%d): Unknown task mgmt fn 0x%x\n",
+ sess->vha->vp_idx, fn);
+ mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
+ return -ENOSYS;
+ }
+
+ res = ha->tgt.tgt_ops->handle_tmr(mcmd, lun, tmr_func, 0);
+ if (res != 0) {
+ ql_dbg(ql_dbg_tgt_tmr, vha, 0x1000b,
+ "qla_target(%d): tgt.tgt_ops->handle_tmr() failed: %d\n",
+ sess->vha->vp_idx, res);
+ mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+/* ha->hardware_lock supposed to be held on entry */
+static int qlt_handle_task_mgmt(struct scsi_qla_host *vha, void *iocb)
+{
+ struct atio_from_isp *a = (struct atio_from_isp *)iocb;
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt *tgt;
+ struct qla_tgt_sess *sess;
+ uint32_t lun, unpacked_lun;
+ int lun_size, fn;
+
+ tgt = ha->tgt.qla_tgt;
+
+ lun = a->u.isp24.fcp_cmnd.lun;
+ lun_size = sizeof(a->u.isp24.fcp_cmnd.lun);
+ fn = a->u.isp24.fcp_cmnd.task_mgmt_flags;
+ sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha,
+ a->u.isp24.fcp_hdr.s_id);
+ unpacked_lun = scsilun_to_int((struct scsi_lun *)&lun);
+
+ if (!sess) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf024,
+ "qla_target(%d): task mgmt fn 0x%x for "
+ "non-existant session\n", vha->vp_idx, fn);
+ return qlt_sched_sess_work(tgt, QLA_TGT_SESS_WORK_TM, iocb,
+ sizeof(struct atio_from_isp));
+ }
+
+ return qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0);
+}
+
+/* ha->hardware_lock supposed to be held on entry */
+static int __qlt_abort_task(struct scsi_qla_host *vha,
+ struct imm_ntfy_from_isp *iocb, struct qla_tgt_sess *sess)
+{
+ struct atio_from_isp *a = (struct atio_from_isp *)iocb;
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt_mgmt_cmd *mcmd;
+ uint32_t lun, unpacked_lun;
+ int rc;
+
+ mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
+ if (mcmd == NULL) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05f,
+ "qla_target(%d): %s: Allocation of ABORT cmd failed\n",
+ vha->vp_idx, __func__);
+ return -ENOMEM;
+ }
+ memset(mcmd, 0, sizeof(*mcmd));
+
+ mcmd->sess = sess;
+ memcpy(&mcmd->orig_iocb.imm_ntfy, iocb,
+ sizeof(mcmd->orig_iocb.imm_ntfy));
+
+ lun = a->u.isp24.fcp_cmnd.lun;
+ unpacked_lun = scsilun_to_int((struct scsi_lun *)&lun);
+
+ rc = ha->tgt.tgt_ops->handle_tmr(mcmd, unpacked_lun, TMR_ABORT_TASK,
+ le16_to_cpu(iocb->u.isp2x.seq_id));
+ if (rc != 0) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf060,
+ "qla_target(%d): tgt_ops->handle_tmr() failed: %d\n",
+ vha->vp_idx, rc);
+ mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+/* ha->hardware_lock supposed to be held on entry */
+static int qlt_abort_task(struct scsi_qla_host *vha,
+ struct imm_ntfy_from_isp *iocb)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt_sess *sess;
+ int loop_id;
+
+ loop_id = GET_TARGET_ID(ha, (struct atio_from_isp *)iocb);
+
+ sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id);
+ if (sess == NULL) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf025,
+ "qla_target(%d): task abort for unexisting "
+ "session\n", vha->vp_idx);
+ return qlt_sched_sess_work(ha->tgt.qla_tgt,
+ QLA_TGT_SESS_WORK_ABORT, iocb, sizeof(*iocb));
+ }
+
+ return __qlt_abort_task(vha, iocb, sess);
+}
+
+/*
+ * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
+ */
+static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
+ struct imm_ntfy_from_isp *iocb)
+{
+ struct qla_hw_data *ha = vha->hw;
+ int res = 0;
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf026,
+ "qla_target(%d): Port ID: 0x%02x:%02x:%02x"
+ " ELS opcode: 0x%02x\n", vha->vp_idx, iocb->u.isp24.port_id[0],
+ iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[2],
+ iocb->u.isp24.status_subcode);
+
+ switch (iocb->u.isp24.status_subcode) {
+ case ELS_PLOGI:
+ case ELS_FLOGI:
+ case ELS_PRLI:
+ case ELS_LOGO:
+ case ELS_PRLO:
+ res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS);
+ break;
+ case ELS_PDISC:
+ case ELS_ADISC:
+ {
+ struct qla_tgt *tgt = ha->tgt.qla_tgt;
+ if (tgt->link_reinit_iocb_pending) {
+ qlt_send_notify_ack(vha, &tgt->link_reinit_iocb,
+ 0, 0, 0, 0, 0, 0);
+ tgt->link_reinit_iocb_pending = 0;
+ }
+ res = 1; /* send notify ack */
+ break;
+ }
+
+ default:
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf061,
+ "qla_target(%d): Unsupported ELS command %x "
+ "received\n", vha->vp_idx, iocb->u.isp24.status_subcode);
+ res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS);
+ break;
+ }
+
+ return res;
+}
+
+static int qlt_set_data_offset(struct qla_tgt_cmd *cmd, uint32_t offset)
+{
+ struct scatterlist *sg, *sgp, *sg_srr, *sg_srr_start = NULL;
+ size_t first_offset = 0, rem_offset = offset, tmp = 0;
+ int i, sg_srr_cnt, bufflen = 0;
+
+ ql_dbg(ql_dbg_tgt, cmd->vha, 0xe023,
+ "Entering qla_tgt_set_data_offset: cmd: %p, cmd->sg: %p, "
+ "cmd->sg_cnt: %u, direction: %d\n",
+ cmd, cmd->sg, cmd->sg_cnt, cmd->dma_data_direction);
+
+ /*
+ * FIXME: Reject non zero SRR relative offset until we can test
+ * this code properly.
+ */
+ pr_debug("Rejecting non zero SRR rel_offs: %u\n", offset);
+ return -1;
+
+ if (!cmd->sg || !cmd->sg_cnt) {
+ ql_dbg(ql_dbg_tgt, cmd->vha, 0xe055,
+ "Missing cmd->sg or zero cmd->sg_cnt in"
+ " qla_tgt_set_data_offset\n");
+ return -EINVAL;
+ }
+ /*
+ * Walk the current cmd->sg list until we locate the new sg_srr_start
+ */
+ for_each_sg(cmd->sg, sg, cmd->sg_cnt, i) {
+ ql_dbg(ql_dbg_tgt, cmd->vha, 0xe024,
+ "sg[%d]: %p page: %p, length: %d, offset: %d\n",
+ i, sg, sg_page(sg), sg->length, sg->offset);
+
+ if ((sg->length + tmp) > offset) {
+ first_offset = rem_offset;
+ sg_srr_start = sg;
+ ql_dbg(ql_dbg_tgt, cmd->vha, 0xe025,
+ "Found matching sg[%d], using %p as sg_srr_start, "
+ "and using first_offset: %zu\n", i, sg,
+ first_offset);
+ break;
+ }
+ tmp += sg->length;
+ rem_offset -= sg->length;
+ }
+
+ if (!sg_srr_start) {
+ ql_dbg(ql_dbg_tgt, cmd->vha, 0xe056,
+ "Unable to locate sg_srr_start for offset: %u\n", offset);
+ return -EINVAL;
+ }
+ sg_srr_cnt = (cmd->sg_cnt - i);
+
+ sg_srr = kzalloc(sizeof(struct scatterlist) * sg_srr_cnt, GFP_KERNEL);
+ if (!sg_srr) {
+ ql_dbg(ql_dbg_tgt, cmd->vha, 0xe057,
+ "Unable to allocate sgp\n");
+ return -ENOMEM;
+ }
+ sg_init_table(sg_srr, sg_srr_cnt);
+ sgp = &sg_srr[0];
+ /*
+ * Walk the remaining list for sg_srr_start, mapping to the newly
+ * allocated sg_srr taking first_offset into account.
+ */
+ for_each_sg(sg_srr_start, sg, sg_srr_cnt, i) {
+ if (first_offset) {
+ sg_set_page(sgp, sg_page(sg),
+ (sg->length - first_offset), first_offset);
+ first_offset = 0;
+ } else {
+ sg_set_page(sgp, sg_page(sg), sg->length, 0);
+ }
+ bufflen += sgp->length;
+
+ sgp = sg_next(sgp);
+ if (!sgp)
+ break;
+ }
+
+ cmd->sg = sg_srr;
+ cmd->sg_cnt = sg_srr_cnt;
+ cmd->bufflen = bufflen;
+ cmd->offset += offset;
+ cmd->free_sg = 1;
+
+ ql_dbg(ql_dbg_tgt, cmd->vha, 0xe026, "New cmd->sg: %p\n", cmd->sg);
+ ql_dbg(ql_dbg_tgt, cmd->vha, 0xe027, "New cmd->sg_cnt: %u\n",
+ cmd->sg_cnt);
+ ql_dbg(ql_dbg_tgt, cmd->vha, 0xe028, "New cmd->bufflen: %u\n",
+ cmd->bufflen);
+ ql_dbg(ql_dbg_tgt, cmd->vha, 0xe029, "New cmd->offset: %u\n",
+ cmd->offset);
+
+ if (cmd->sg_cnt < 0)
+ BUG();
+
+ if (cmd->bufflen < 0)
+ BUG();
+
+ return 0;
+}
+
+static inline int qlt_srr_adjust_data(struct qla_tgt_cmd *cmd,
+ uint32_t srr_rel_offs, int *xmit_type)
+{
+ int res = 0, rel_offs;
+
+ rel_offs = srr_rel_offs - cmd->offset;
+ ql_dbg(ql_dbg_tgt_mgt, cmd->vha, 0xf027, "srr_rel_offs=%d, rel_offs=%d",
+ srr_rel_offs, rel_offs);
+
+ *xmit_type = QLA_TGT_XMIT_ALL;
+
+ if (rel_offs < 0) {
+ ql_dbg(ql_dbg_tgt_mgt, cmd->vha, 0xf062,
+ "qla_target(%d): SRR rel_offs (%d) < 0",
+ cmd->vha->vp_idx, rel_offs);
+ res = -1;
+ } else if (rel_offs == cmd->bufflen)
+ *xmit_type = QLA_TGT_XMIT_STATUS;
+ else if (rel_offs > 0)
+ res = qlt_set_data_offset(cmd, rel_offs);
+
+ return res;
+}
+
+/* No locks, thread context */
+static void qlt_handle_srr(struct scsi_qla_host *vha,
+ struct qla_tgt_srr_ctio *sctio, struct qla_tgt_srr_imm *imm)
+{
+ struct imm_ntfy_from_isp *ntfy =
+ (struct imm_ntfy_from_isp *)&imm->imm_ntfy;
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt_cmd *cmd = sctio->cmd;
+ struct se_cmd *se_cmd = &cmd->se_cmd;
+ unsigned long flags;
+ int xmit_type = 0, resp = 0;
+ uint32_t offset;
+ uint16_t srr_ui;
+
+ offset = le32_to_cpu(ntfy->u.isp24.srr_rel_offs);
+ srr_ui = ntfy->u.isp24.srr_ui;
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf028, "SRR cmd %p, srr_ui %x\n",
+ cmd, srr_ui);
+
+ switch (srr_ui) {
+ case SRR_IU_STATUS:
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ qlt_send_notify_ack(vha, ntfy,
+ 0, 0, 0, NOTIFY_ACK_SRR_FLAGS_ACCEPT, 0, 0);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ xmit_type = QLA_TGT_XMIT_STATUS;
+ resp = 1;
+ break;
+ case SRR_IU_DATA_IN:
+ if (!cmd->sg || !cmd->sg_cnt) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf063,
+ "Unable to process SRR_IU_DATA_IN due to"
+ " missing cmd->sg, state: %d\n", cmd->state);
+ dump_stack();
+ goto out_reject;
+ }
+ if (se_cmd->scsi_status != 0) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe02a,
+ "Rejecting SRR_IU_DATA_IN with non GOOD "
+ "scsi_status\n");
+ goto out_reject;
+ }
+ cmd->bufflen = se_cmd->data_length;
+
+ if (qlt_has_data(cmd)) {
+ if (qlt_srr_adjust_data(cmd, offset, &xmit_type) != 0)
+ goto out_reject;
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ qlt_send_notify_ack(vha, ntfy,
+ 0, 0, 0, NOTIFY_ACK_SRR_FLAGS_ACCEPT, 0, 0);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ resp = 1;
+ } else {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf064,
+ "qla_target(%d): SRR for in data for cmd "
+ "without them (tag %d, SCSI status %d), "
+ "reject", vha->vp_idx, cmd->tag,
+ cmd->se_cmd.scsi_status);
+ goto out_reject;
+ }
+ break;
+ case SRR_IU_DATA_OUT:
+ if (!cmd->sg || !cmd->sg_cnt) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf065,
+ "Unable to process SRR_IU_DATA_OUT due to"
+ " missing cmd->sg\n");
+ dump_stack();
+ goto out_reject;
+ }
+ if (se_cmd->scsi_status != 0) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe02b,
+ "Rejecting SRR_IU_DATA_OUT"
+ " with non GOOD scsi_status\n");
+ goto out_reject;
+ }
+ cmd->bufflen = se_cmd->data_length;
+
+ if (qlt_has_data(cmd)) {
+ if (qlt_srr_adjust_data(cmd, offset, &xmit_type) != 0)
+ goto out_reject;
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ qlt_send_notify_ack(vha, ntfy,
+ 0, 0, 0, NOTIFY_ACK_SRR_FLAGS_ACCEPT, 0, 0);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ if (xmit_type & QLA_TGT_XMIT_DATA)
+ qlt_rdy_to_xfer(cmd);
+ } else {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf066,
+ "qla_target(%d): SRR for out data for cmd "
+ "without them (tag %d, SCSI status %d), "
+ "reject", vha->vp_idx, cmd->tag,
+ cmd->se_cmd.scsi_status);
+ goto out_reject;
+ }
+ break;
+ default:
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf067,
+ "qla_target(%d): Unknown srr_ui value %x",
+ vha->vp_idx, srr_ui);
+ goto out_reject;
+ }
+
+ /* Transmit response in case of status and data-in cases */
+ if (resp)
+ qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status);
+
+ return;
+
+out_reject:
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ qlt_send_notify_ack(vha, ntfy, 0, 0, 0,
+ NOTIFY_ACK_SRR_FLAGS_REJECT,
+ NOTIFY_ACK_SRR_REJECT_REASON_UNABLE_TO_PERFORM,
+ NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_NO_EXPL);
+ if (cmd->state == QLA_TGT_STATE_NEED_DATA) {
+ cmd->state = QLA_TGT_STATE_DATA_IN;
+ dump_stack();
+ } else
+ qlt_send_term_exchange(vha, cmd, &cmd->atio, 1);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+}
+
+static void qlt_reject_free_srr_imm(struct scsi_qla_host *vha,
+ struct qla_tgt_srr_imm *imm, int ha_locked)
+{
+ struct qla_hw_data *ha = vha->hw;
+ unsigned long flags = 0;
+
+ if (!ha_locked)
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+
+ qlt_send_notify_ack(vha, (void *)&imm->imm_ntfy, 0, 0, 0,
+ NOTIFY_ACK_SRR_FLAGS_REJECT,
+ NOTIFY_ACK_SRR_REJECT_REASON_UNABLE_TO_PERFORM,
+ NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_NO_EXPL);
+
+ if (!ha_locked)
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ kfree(imm);
+}
+
+static void qlt_handle_srr_work(struct work_struct *work)
+{
+ struct qla_tgt *tgt = container_of(work, struct qla_tgt, srr_work);
+ struct scsi_qla_host *vha = tgt->vha;
+ struct qla_tgt_srr_ctio *sctio;
+ unsigned long flags;
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf029, "Entering SRR work (tgt %p)\n",
+ tgt);
+
+restart:
+ spin_lock_irqsave(&tgt->srr_lock, flags);
+ list_for_each_entry(sctio, &tgt->srr_ctio_list, srr_list_entry) {
+ struct qla_tgt_srr_imm *imm, *i, *ti;
+ struct qla_tgt_cmd *cmd;
+ struct se_cmd *se_cmd;
+
+ imm = NULL;
+ list_for_each_entry_safe(i, ti, &tgt->srr_imm_list,
+ srr_list_entry) {
+ if (i->srr_id == sctio->srr_id) {
+ list_del(&i->srr_list_entry);
+ if (imm) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf068,
+ "qla_target(%d): There must be "
+ "only one IMM SRR per CTIO SRR "
+ "(IMM SRR %p, id %d, CTIO %p\n",
+ vha->vp_idx, i, i->srr_id, sctio);
+ qlt_reject_free_srr_imm(tgt->vha, i, 0);
+ } else
+ imm = i;
+ }
+ }
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf02a,
+ "IMM SRR %p, CTIO SRR %p (id %d)\n", imm, sctio,
+ sctio->srr_id);
+
+ if (imm == NULL) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf02b,
+ "Not found matching IMM for SRR CTIO (id %d)\n",
+ sctio->srr_id);
+ continue;
+ } else
+ list_del(&sctio->srr_list_entry);
+
+ spin_unlock_irqrestore(&tgt->srr_lock, flags);
+
+ cmd = sctio->cmd;
+ /*
+ * Reset qla_tgt_cmd SRR values and SGL pointer+count to follow
+ * tcm_qla2xxx_write_pending() and tcm_qla2xxx_queue_data_in()
+ * logic..
+ */
+ cmd->offset = 0;
+ if (cmd->free_sg) {
+ kfree(cmd->sg);
+ cmd->sg = NULL;
+ cmd->free_sg = 0;
+ }
+ se_cmd = &cmd->se_cmd;
+
+ cmd->sg_cnt = se_cmd->t_data_nents;
+ cmd->sg = se_cmd->t_data_sg;
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf02c,
+ "SRR cmd %p (se_cmd %p, tag %d, op %x), "
+ "sg_cnt=%d, offset=%d", cmd, &cmd->se_cmd, cmd->tag,
+ se_cmd->t_task_cdb[0], cmd->sg_cnt, cmd->offset);
+
+ qlt_handle_srr(vha, sctio, imm);
+
+ kfree(imm);
+ kfree(sctio);
+ goto restart;
+ }
+ spin_unlock_irqrestore(&tgt->srr_lock, flags);
+}
+
+/* ha->hardware_lock supposed to be held on entry */
+static void qlt_prepare_srr_imm(struct scsi_qla_host *vha,
+ struct imm_ntfy_from_isp *iocb)
+{
+ struct qla_tgt_srr_imm *imm;
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt *tgt = ha->tgt.qla_tgt;
+ struct qla_tgt_srr_ctio *sctio;
+
+ tgt->imm_srr_id++;
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf02d, "qla_target(%d): SRR received\n",
+ vha->vp_idx);
+
+ imm = kzalloc(sizeof(*imm), GFP_ATOMIC);
+ if (imm != NULL) {
+ memcpy(&imm->imm_ntfy, iocb, sizeof(imm->imm_ntfy));
+
+ /* IRQ is already OFF */
+ spin_lock(&tgt->srr_lock);
+ imm->srr_id = tgt->imm_srr_id;
+ list_add_tail(&imm->srr_list_entry,
+ &tgt->srr_imm_list);
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf02e,
+ "IMM NTFY SRR %p added (id %d, ui %x)\n",
+ imm, imm->srr_id, iocb->u.isp24.srr_ui);
+ if (tgt->imm_srr_id == tgt->ctio_srr_id) {
+ int found = 0;
+ list_for_each_entry(sctio, &tgt->srr_ctio_list,
+ srr_list_entry) {
+ if (sctio->srr_id == imm->srr_id) {
+ found = 1;
+ break;
+ }
+ }
+ if (found) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf02f, "%s",
+ "Scheduling srr work\n");
+ schedule_work(&tgt->srr_work);
+ } else {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf030,
+ "qla_target(%d): imm_srr_id "
+ "== ctio_srr_id (%d), but there is no "
+ "corresponding SRR CTIO, deleting IMM "
+ "SRR %p\n", vha->vp_idx, tgt->ctio_srr_id,
+ imm);
+ list_del(&imm->srr_list_entry);
+
+ kfree(imm);
+
+ spin_unlock(&tgt->srr_lock);
+ goto out_reject;
+ }
+ }
+ spin_unlock(&tgt->srr_lock);
+ } else {
+ struct qla_tgt_srr_ctio *ts;
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf069,
+ "qla_target(%d): Unable to allocate SRR IMM "
+ "entry, SRR request will be rejected\n", vha->vp_idx);
+
+ /* IRQ is already OFF */
+ spin_lock(&tgt->srr_lock);
+ list_for_each_entry_safe(sctio, ts, &tgt->srr_ctio_list,
+ srr_list_entry) {
+ if (sctio->srr_id == tgt->imm_srr_id) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf031,
+ "CTIO SRR %p deleted (id %d)\n",
+ sctio, sctio->srr_id);
+ list_del(&sctio->srr_list_entry);
+ qlt_send_term_exchange(vha, sctio->cmd,
+ &sctio->cmd->atio, 1);
+ kfree(sctio);
+ }
+ }
+ spin_unlock(&tgt->srr_lock);
+ goto out_reject;
+ }
+
+ return;
+
+out_reject:
+ qlt_send_notify_ack(vha, iocb, 0, 0, 0,
+ NOTIFY_ACK_SRR_FLAGS_REJECT,
+ NOTIFY_ACK_SRR_REJECT_REASON_UNABLE_TO_PERFORM,
+ NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_NO_EXPL);
+}
+
+/*
+ * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
+ */
+static void qlt_handle_imm_notify(struct scsi_qla_host *vha,
+ struct imm_ntfy_from_isp *iocb)
+{
+ struct qla_hw_data *ha = vha->hw;
+ uint32_t add_flags = 0;
+ int send_notify_ack = 1;
+ uint16_t status;
+
+ status = le16_to_cpu(iocb->u.isp2x.status);
+ switch (status) {
+ case IMM_NTFY_LIP_RESET:
+ {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf032,
+ "qla_target(%d): LIP reset (loop %#x), subcode %x\n",
+ vha->vp_idx, le16_to_cpu(iocb->u.isp24.nport_handle),
+ iocb->u.isp24.status_subcode);
+
+ if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0)
+ send_notify_ack = 0;
+ break;
+ }
+
+ case IMM_NTFY_LIP_LINK_REINIT:
+ {
+ struct qla_tgt *tgt = ha->tgt.qla_tgt;
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf033,
+ "qla_target(%d): LINK REINIT (loop %#x, "
+ "subcode %x)\n", vha->vp_idx,
+ le16_to_cpu(iocb->u.isp24.nport_handle),
+ iocb->u.isp24.status_subcode);
+ if (tgt->link_reinit_iocb_pending) {
+ qlt_send_notify_ack(vha, &tgt->link_reinit_iocb,
+ 0, 0, 0, 0, 0, 0);
+ }
+ memcpy(&tgt->link_reinit_iocb, iocb, sizeof(*iocb));
+ tgt->link_reinit_iocb_pending = 1;
+ /*
+ * QLogic requires to wait after LINK REINIT for possible
+ * PDISC or ADISC ELS commands
+ */
+ send_notify_ack = 0;
+ break;
+ }
+
+ case IMM_NTFY_PORT_LOGOUT:
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf034,
+ "qla_target(%d): Port logout (loop "
+ "%#x, subcode %x)\n", vha->vp_idx,
+ le16_to_cpu(iocb->u.isp24.nport_handle),
+ iocb->u.isp24.status_subcode);
+
+ if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS) == 0)
+ send_notify_ack = 0;
+ /* The sessions will be cleared in the callback, if needed */
+ break;
+
+ case IMM_NTFY_GLBL_TPRLO:
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf035,
+ "qla_target(%d): Global TPRLO (%x)\n", vha->vp_idx, status);
+ if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0)
+ send_notify_ack = 0;
+ /* The sessions will be cleared in the callback, if needed */
+ break;
+
+ case IMM_NTFY_PORT_CONFIG:
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf036,
+ "qla_target(%d): Port config changed (%x)\n", vha->vp_idx,
+ status);
+ if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0)
+ send_notify_ack = 0;
+ /* The sessions will be cleared in the callback, if needed */
+ break;
+
+ case IMM_NTFY_GLBL_LOGO:
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06a,
+ "qla_target(%d): Link failure detected\n",
+ vha->vp_idx);
+ /* I_T nexus loss */
+ if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0)
+ send_notify_ack = 0;
+ break;
+
+ case IMM_NTFY_IOCB_OVERFLOW:
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06b,
+ "qla_target(%d): Cannot provide requested "
+ "capability (IOCB overflowed the immediate notify "
+ "resource count)\n", vha->vp_idx);
+ break;
+
+ case IMM_NTFY_ABORT_TASK:
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf037,
+ "qla_target(%d): Abort Task (S %08x I %#x -> "
+ "L %#x)\n", vha->vp_idx,
+ le16_to_cpu(iocb->u.isp2x.seq_id),
+ GET_TARGET_ID(ha, (struct atio_from_isp *)iocb),
+ le16_to_cpu(iocb->u.isp2x.lun));
+ if (qlt_abort_task(vha, iocb) == 0)
+ send_notify_ack = 0;
+ break;
+
+ case IMM_NTFY_RESOURCE:
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06c,
+ "qla_target(%d): Out of resources, host %ld\n",
+ vha->vp_idx, vha->host_no);
+ break;
+
+ case IMM_NTFY_MSG_RX:
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf038,
+ "qla_target(%d): Immediate notify task %x\n",
+ vha->vp_idx, iocb->u.isp2x.task_flags);
+ if (qlt_handle_task_mgmt(vha, iocb) == 0)
+ send_notify_ack = 0;
+ break;
+
+ case IMM_NTFY_ELS:
+ if (qlt_24xx_handle_els(vha, iocb) == 0)
+ send_notify_ack = 0;
+ break;
+
+ case IMM_NTFY_SRR:
+ qlt_prepare_srr_imm(vha, iocb);
+ send_notify_ack = 0;
+ break;
+
+ default:
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06d,
+ "qla_target(%d): Received unknown immediate "
+ "notify status %x\n", vha->vp_idx, status);
+ break;
+ }
+
+ if (send_notify_ack)
+ qlt_send_notify_ack(vha, iocb, add_flags, 0, 0, 0, 0, 0);
+}
+
+/*
+ * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
+ * This function sends busy to ISP 2xxx or 24xx.
+ */
+static void qlt_send_busy(struct scsi_qla_host *vha,
+ struct atio_from_isp *atio, uint16_t status)
+{
+ struct ctio7_to_24xx *ctio24;
+ struct qla_hw_data *ha = vha->hw;
+ request_t *pkt;
+ struct qla_tgt_sess *sess = NULL;
+
+ sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha,
+ atio->u.isp24.fcp_hdr.s_id);
+ if (!sess) {
+ qlt_send_term_exchange(vha, NULL, atio, 1);
+ return;
+ }
+ /* Sending marker isn't necessary, since we called from ISR */
+
+ pkt = (request_t *)qla2x00_alloc_iocbs(vha, NULL);
+ if (!pkt) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06e,
+ "qla_target(%d): %s failed: unable to allocate "
+ "request packet", vha->vp_idx, __func__);
+ return;
+ }
+
+ pkt->entry_count = 1;
+ pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
+
+ ctio24 = (struct ctio7_to_24xx *)pkt;
+ ctio24->entry_type = CTIO_TYPE7;
+ ctio24->nport_handle = sess->loop_id;
+ ctio24->timeout = __constant_cpu_to_le16(QLA_TGT_TIMEOUT);
+ ctio24->vp_index = vha->vp_idx;
+ ctio24->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2];
+ ctio24->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1];
+ ctio24->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0];
+ ctio24->exchange_addr = atio->u.isp24.exchange_addr;
+ ctio24->u.status1.flags = (atio->u.isp24.attr << 9) |
+ __constant_cpu_to_le16(
+ CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS |
+ CTIO7_FLAGS_DONT_RET_CTIO);
+ /*
+ * CTIO from fw w/o se_cmd doesn't provide enough info to retry it,
+ * if the explicit conformation is used.
+ */
+ ctio24->u.status1.ox_id = swab16(atio->u.isp24.fcp_hdr.ox_id);
+ ctio24->u.status1.scsi_status = cpu_to_le16(status);
+ ctio24->u.status1.residual = get_unaligned((uint32_t *)
+ &atio->u.isp24.fcp_cmnd.add_cdb[
+ atio->u.isp24.fcp_cmnd.add_cdb_len]);
+ if (ctio24->u.status1.residual != 0)
+ ctio24->u.status1.scsi_status |= SS_RESIDUAL_UNDER;
+
+ qla2x00_start_iocbs(vha, vha->req);
+}
+
+/* ha->hardware_lock supposed to be held on entry */
+/* called via callback from qla2xxx */
+static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha,
+ struct atio_from_isp *atio)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt *tgt = ha->tgt.qla_tgt;
+ int rc;
+
+ if (unlikely(tgt == NULL)) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf039,
+ "ATIO pkt, but no tgt (ha %p)", ha);
+ return;
+ }
+ ql_dbg(ql_dbg_tgt, vha, 0xe02c,
+ "qla_target(%d): ATIO pkt %p: type %02x count %02x",
+ vha->vp_idx, atio, atio->u.raw.entry_type,
+ atio->u.raw.entry_count);
+ /*
+ * In tgt_stop mode we also should allow all requests to pass.
+ * Otherwise, some commands can stuck.
+ */
+
+ tgt->irq_cmd_count++;
+
+ switch (atio->u.raw.entry_type) {
+ case ATIO_TYPE7:
+ ql_dbg(ql_dbg_tgt, vha, 0xe02d,
+ "ATIO_TYPE7 instance %d, lun %Lx, read/write %d/%d, "
+ "add_cdb_len %d, data_length %04x, s_id %x:%x:%x\n",
+ vha->vp_idx, atio->u.isp24.fcp_cmnd.lun,
+ atio->u.isp24.fcp_cmnd.rddata,
+ atio->u.isp24.fcp_cmnd.wrdata,
+ atio->u.isp24.fcp_cmnd.add_cdb_len,
+ be32_to_cpu(get_unaligned((uint32_t *)
+ &atio->u.isp24.fcp_cmnd.add_cdb[
+ atio->u.isp24.fcp_cmnd.add_cdb_len])),
+ atio->u.isp24.fcp_hdr.s_id[0],
+ atio->u.isp24.fcp_hdr.s_id[1],
+ atio->u.isp24.fcp_hdr.s_id[2]);
+
+ if (unlikely(atio->u.isp24.exchange_addr ==
+ ATIO_EXCHANGE_ADDRESS_UNKNOWN)) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe058,
+ "qla_target(%d): ATIO_TYPE7 "
+ "received with UNKNOWN exchange address, "
+ "sending QUEUE_FULL\n", vha->vp_idx);
+ qlt_send_busy(vha, atio, SAM_STAT_TASK_SET_FULL);
+ break;
+ }
+ if (likely(atio->u.isp24.fcp_cmnd.task_mgmt_flags == 0))
+ rc = qlt_handle_cmd_for_atio(vha, atio);
+ else
+ rc = qlt_handle_task_mgmt(vha, atio);
+ if (unlikely(rc != 0)) {
+ if (rc == -ESRCH) {
+#if 1 /* With TERM EXCHANGE some FC cards refuse to boot */
+ qlt_send_busy(vha, atio, SAM_STAT_BUSY);
+#else
+ qlt_send_term_exchange(vha, NULL, atio, 1);
+#endif
+ } else {
+ if (tgt->tgt_stop) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe059,
+ "qla_target: Unable to send "
+ "command to target for req, "
+ "ignoring.\n");
+ } else {
+ ql_dbg(ql_dbg_tgt, vha, 0xe05a,
+ "qla_target(%d): Unable to send "
+ "command to target, sending BUSY "
+ "status.\n", vha->vp_idx);
+ qlt_send_busy(vha, atio, SAM_STAT_BUSY);
+ }
+ }
+ }
+ break;
+
+ case IMMED_NOTIFY_TYPE:
+ {
+ if (unlikely(atio->u.isp2x.entry_status != 0)) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe05b,
+ "qla_target(%d): Received ATIO packet %x "
+ "with error status %x\n", vha->vp_idx,
+ atio->u.raw.entry_type,
+ atio->u.isp2x.entry_status);
+ break;
+ }
+ ql_dbg(ql_dbg_tgt, vha, 0xe02e, "%s", "IMMED_NOTIFY ATIO");
+ qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)atio);
+ break;
+ }
+
+ default:
+ ql_dbg(ql_dbg_tgt, vha, 0xe05c,
+ "qla_target(%d): Received unknown ATIO atio "
+ "type %x\n", vha->vp_idx, atio->u.raw.entry_type);
+ break;
+ }
+
+ tgt->irq_cmd_count--;
+}
+
+/* ha->hardware_lock supposed to be held on entry */
+/* called via callback from qla2xxx */
+static void qlt_response_pkt(struct scsi_qla_host *vha, response_t *pkt)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt *tgt = ha->tgt.qla_tgt;
+
+ if (unlikely(tgt == NULL)) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe05d,
+ "qla_target(%d): Response pkt %x received, but no "
+ "tgt (ha %p)\n", vha->vp_idx, pkt->entry_type, ha);
+ return;
+ }
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe02f,
+ "qla_target(%d): response pkt %p: T %02x C %02x S %02x "
+ "handle %#x\n", vha->vp_idx, pkt, pkt->entry_type,
+ pkt->entry_count, pkt->entry_status, pkt->handle);
+
+ /*
+ * In tgt_stop mode we also should allow all requests to pass.
+ * Otherwise, some commands can stuck.
+ */
+
+ tgt->irq_cmd_count++;
+
+ switch (pkt->entry_type) {
+ case CTIO_TYPE7:
+ {
+ struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt;
+ ql_dbg(ql_dbg_tgt, vha, 0xe030, "CTIO_TYPE7: instance %d\n",
+ vha->vp_idx);
+ qlt_do_ctio_completion(vha, entry->handle,
+ le16_to_cpu(entry->status)|(pkt->entry_status << 16),
+ entry);
+ break;
+ }
+
+ case ACCEPT_TGT_IO_TYPE:
+ {
+ struct atio_from_isp *atio = (struct atio_from_isp *)pkt;
+ int rc;
+ ql_dbg(ql_dbg_tgt, vha, 0xe031,
+ "ACCEPT_TGT_IO instance %d status %04x "
+ "lun %04x read/write %d data_length %04x "
+ "target_id %02x rx_id %04x\n ", vha->vp_idx,
+ le16_to_cpu(atio->u.isp2x.status),
+ le16_to_cpu(atio->u.isp2x.lun),
+ atio->u.isp2x.execution_codes,
+ le32_to_cpu(atio->u.isp2x.data_length), GET_TARGET_ID(ha,
+ atio), atio->u.isp2x.rx_id);
+ if (atio->u.isp2x.status !=
+ __constant_cpu_to_le16(ATIO_CDB_VALID)) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe05e,
+ "qla_target(%d): ATIO with error "
+ "status %x received\n", vha->vp_idx,
+ le16_to_cpu(atio->u.isp2x.status));
+ break;
+ }
+ ql_dbg(ql_dbg_tgt, vha, 0xe032,
+ "FCP CDB: 0x%02x, sizeof(cdb): %lu",
+ atio->u.isp2x.cdb[0], (unsigned long
+ int)sizeof(atio->u.isp2x.cdb));
+
+ rc = qlt_handle_cmd_for_atio(vha, atio);
+ if (unlikely(rc != 0)) {
+ if (rc == -ESRCH) {
+#if 1 /* With TERM EXCHANGE some FC cards refuse to boot */
+ qlt_send_busy(vha, atio, 0);
+#else
+ qlt_send_term_exchange(vha, NULL, atio, 1);
+#endif
+ } else {
+ if (tgt->tgt_stop) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe05f,
+ "qla_target: Unable to send "
+ "command to target, sending TERM "
+ "EXCHANGE for rsp\n");
+ qlt_send_term_exchange(vha, NULL,
+ atio, 1);
+ } else {
+ ql_dbg(ql_dbg_tgt, vha, 0xe060,
+ "qla_target(%d): Unable to send "
+ "command to target, sending BUSY "
+ "status\n", vha->vp_idx);
+ qlt_send_busy(vha, atio, 0);
+ }
+ }
+ }
+ }
+ break;
+
+ case CONTINUE_TGT_IO_TYPE:
+ {
+ struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt;
+ ql_dbg(ql_dbg_tgt, vha, 0xe033,
+ "CONTINUE_TGT_IO: instance %d\n", vha->vp_idx);
+ qlt_do_ctio_completion(vha, entry->handle,
+ le16_to_cpu(entry->status)|(pkt->entry_status << 16),
+ entry);
+ break;
+ }
+
+ case CTIO_A64_TYPE:
+ {
+ struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt;
+ ql_dbg(ql_dbg_tgt, vha, 0xe034, "CTIO_A64: instance %d\n",
+ vha->vp_idx);
+ qlt_do_ctio_completion(vha, entry->handle,
+ le16_to_cpu(entry->status)|(pkt->entry_status << 16),
+ entry);
+ break;
+ }
+
+ case IMMED_NOTIFY_TYPE:
+ ql_dbg(ql_dbg_tgt, vha, 0xe035, "%s", "IMMED_NOTIFY\n");
+ qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)pkt);
+ break;
+
+ case NOTIFY_ACK_TYPE:
+ if (tgt->notify_ack_expected > 0) {
+ struct nack_to_isp *entry = (struct nack_to_isp *)pkt;
+ ql_dbg(ql_dbg_tgt, vha, 0xe036,
+ "NOTIFY_ACK seq %08x status %x\n",
+ le16_to_cpu(entry->u.isp2x.seq_id),
+ le16_to_cpu(entry->u.isp2x.status));
+ tgt->notify_ack_expected--;
+ if (entry->u.isp2x.status !=
+ __constant_cpu_to_le16(NOTIFY_ACK_SUCCESS)) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe061,
+ "qla_target(%d): NOTIFY_ACK "
+ "failed %x\n", vha->vp_idx,
+ le16_to_cpu(entry->u.isp2x.status));
+ }
+ } else {
+ ql_dbg(ql_dbg_tgt, vha, 0xe062,
+ "qla_target(%d): Unexpected NOTIFY_ACK received\n",
+ vha->vp_idx);
+ }
+ break;
+
+ case ABTS_RECV_24XX:
+ ql_dbg(ql_dbg_tgt, vha, 0xe037,
+ "ABTS_RECV_24XX: instance %d\n", vha->vp_idx);
+ qlt_24xx_handle_abts(vha, (struct abts_recv_from_24xx *)pkt);
+ break;
+
+ case ABTS_RESP_24XX:
+ if (tgt->abts_resp_expected > 0) {
+ struct abts_resp_from_24xx_fw *entry =
+ (struct abts_resp_from_24xx_fw *)pkt;
+ ql_dbg(ql_dbg_tgt, vha, 0xe038,
+ "ABTS_RESP_24XX: compl_status %x\n",
+ entry->compl_status);
+ tgt->abts_resp_expected--;
+ if (le16_to_cpu(entry->compl_status) !=
+ ABTS_RESP_COMPL_SUCCESS) {
+ if ((entry->error_subcode1 == 0x1E) &&
+ (entry->error_subcode2 == 0)) {
+ /*
+ * We've got a race here: aborted
+ * exchange not terminated, i.e.
+ * response for the aborted command was
+ * sent between the abort request was
+ * received and processed.
+ * Unfortunately, the firmware has a
+ * silly requirement that all aborted
+ * exchanges must be explicitely
+ * terminated, otherwise it refuses to
+ * send responses for the abort
+ * requests. So, we have to
+ * (re)terminate the exchange and retry
+ * the abort response.
+ */
+ qlt_24xx_retry_term_exchange(vha,
+ entry);
+ } else
+ ql_dbg(ql_dbg_tgt, vha, 0xe063,
+ "qla_target(%d): ABTS_RESP_24XX "
+ "failed %x (subcode %x:%x)",
+ vha->vp_idx, entry->compl_status,
+ entry->error_subcode1,
+ entry->error_subcode2);
+ }
+ } else {
+ ql_dbg(ql_dbg_tgt, vha, 0xe064,
+ "qla_target(%d): Unexpected ABTS_RESP_24XX "
+ "received\n", vha->vp_idx);
+ }
+ break;
+
+ default:
+ ql_dbg(ql_dbg_tgt, vha, 0xe065,
+ "qla_target(%d): Received unknown response pkt "
+ "type %x\n", vha->vp_idx, pkt->entry_type);
+ break;
+ }
+
+ tgt->irq_cmd_count--;
+}
+
+/*
+ * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
+ */
+void qlt_async_event(uint16_t code, struct scsi_qla_host *vha,
+ uint16_t *mailbox)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt *tgt = ha->tgt.qla_tgt;
+ int reason_code;
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe039,
+ "scsi(%ld): ha state %d init_done %d oper_mode %d topo %d\n",
+ vha->host_no, atomic_read(&vha->loop_state), vha->flags.init_done,
+ ha->operating_mode, ha->current_topology);
+
+ if (!ha->tgt.tgt_ops)
+ return;
+
+ if (unlikely(tgt == NULL)) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe03a,
+ "ASYNC EVENT %#x, but no tgt (ha %p)\n", code, ha);
+ return;
+ }
+
+ if (((code == MBA_POINT_TO_POINT) || (code == MBA_CHG_IN_CONNECTION)) &&
+ IS_QLA2100(ha))
+ return;
+ /*
+ * In tgt_stop mode we also should allow all requests to pass.
+ * Otherwise, some commands can stuck.
+ */
+
+ tgt->irq_cmd_count++;
+
+ switch (code) {
+ case MBA_RESET: /* Reset */
+ case MBA_SYSTEM_ERR: /* System Error */
+ case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
+ case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03a,
+ "qla_target(%d): System error async event %#x "
+ "occured", vha->vp_idx, code);
+ break;
+ case MBA_WAKEUP_THRES: /* Request Queue Wake-up. */
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ break;
+
+ case MBA_LOOP_UP:
+ {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03b,
+ "qla_target(%d): Async LOOP_UP occured "
+ "(m[1]=%x, m[2]=%x, m[3]=%x, m[4]=%x)", vha->vp_idx,
+ le16_to_cpu(mailbox[1]), le16_to_cpu(mailbox[2]),
+ le16_to_cpu(mailbox[3]), le16_to_cpu(mailbox[4]));
+ if (tgt->link_reinit_iocb_pending) {
+ qlt_send_notify_ack(vha, (void *)&tgt->link_reinit_iocb,
+ 0, 0, 0, 0, 0, 0);
+ tgt->link_reinit_iocb_pending = 0;
+ }
+ break;
+ }
+
+ case MBA_LIP_OCCURRED:
+ case MBA_LOOP_DOWN:
+ case MBA_LIP_RESET:
+ case MBA_RSCN_UPDATE:
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03c,
+ "qla_target(%d): Async event %#x occured "
+ "(m[1]=%x, m[2]=%x, m[3]=%x, m[4]=%x)", vha->vp_idx, code,
+ le16_to_cpu(mailbox[1]), le16_to_cpu(mailbox[2]),
+ le16_to_cpu(mailbox[3]), le16_to_cpu(mailbox[4]));
+ break;
+
+ case MBA_PORT_UPDATE:
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03d,
+ "qla_target(%d): Port update async event %#x "
+ "occured: updating the ports database (m[1]=%x, m[2]=%x, "
+ "m[3]=%x, m[4]=%x)", vha->vp_idx, code,
+ le16_to_cpu(mailbox[1]), le16_to_cpu(mailbox[2]),
+ le16_to_cpu(mailbox[3]), le16_to_cpu(mailbox[4]));
+ reason_code = le16_to_cpu(mailbox[2]);
+ if (reason_code == 0x4)
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03e,
+ "Async MB 2: Got PLOGI Complete\n");
+ else if (reason_code == 0x7)
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03f,
+ "Async MB 2: Port Logged Out\n");
+ break;
+
+ default:
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf040,
+ "qla_target(%d): Async event %#x occured: "
+ "ignore (m[1]=%x, m[2]=%x, m[3]=%x, m[4]=%x)", vha->vp_idx,
+ code, le16_to_cpu(mailbox[1]), le16_to_cpu(mailbox[2]),
+ le16_to_cpu(mailbox[3]), le16_to_cpu(mailbox[4]));
+ break;
+ }
+
+ tgt->irq_cmd_count--;
+}
+
+static fc_port_t *qlt_get_port_database(struct scsi_qla_host *vha,
+ uint16_t loop_id)
+{
+ fc_port_t *fcport;
+ int rc;
+
+ fcport = kzalloc(sizeof(*fcport), GFP_KERNEL);
+ if (!fcport) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06f,
+ "qla_target(%d): Allocation of tmp FC port failed",
+ vha->vp_idx);
+ return NULL;
+ }
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf041, "loop_id %d", loop_id);
+
+ fcport->loop_id = loop_id;
+
+ rc = qla2x00_get_port_database(vha, fcport, 0);
+ if (rc != QLA_SUCCESS) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf070,
+ "qla_target(%d): Failed to retrieve fcport "
+ "information -- get_port_database() returned %x "
+ "(loop_id=0x%04x)", vha->vp_idx, rc, loop_id);
+ kfree(fcport);
+ return NULL;
+ }
+
+ return fcport;
+}
+
+/* Must be called under tgt_mutex */
+static struct qla_tgt_sess *qlt_make_local_sess(struct scsi_qla_host *vha,
+ uint8_t *s_id)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt_sess *sess = NULL;
+ fc_port_t *fcport = NULL;
+ int rc, global_resets;
+ uint16_t loop_id = 0;
+
+retry:
+ global_resets = atomic_read(&ha->tgt.qla_tgt->tgt_global_resets_count);
+
+ rc = qla24xx_get_loop_id(vha, s_id, &loop_id);
+ if (rc != 0) {
+ if ((s_id[0] == 0xFF) &&
+ (s_id[1] == 0xFC)) {
+ /*
+ * This is Domain Controller, so it should be
+ * OK to drop SCSI commands from it.
+ */
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf042,
+ "Unable to find initiator with S_ID %x:%x:%x",
+ s_id[0], s_id[1], s_id[2]);
+ } else
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf071,
+ "qla_target(%d): Unable to find "
+ "initiator with S_ID %x:%x:%x",
+ vha->vp_idx, s_id[0], s_id[1],
+ s_id[2]);
+ return NULL;
+ }
+
+ fcport = qlt_get_port_database(vha, loop_id);
+ if (!fcport)
+ return NULL;
+
+ if (global_resets !=
+ atomic_read(&ha->tgt.qla_tgt->tgt_global_resets_count)) {
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf043,
+ "qla_target(%d): global reset during session discovery "
+ "(counter was %d, new %d), retrying", vha->vp_idx,
+ global_resets,
+ atomic_read(&ha->tgt.qla_tgt->tgt_global_resets_count));
+ goto retry;
+ }
+
+ sess = qlt_create_sess(vha, fcport, true);
+
+ kfree(fcport);
+ return sess;
+}
+
+static void qlt_abort_work(struct qla_tgt *tgt,
+ struct qla_tgt_sess_work_param *prm)
+{
+ struct scsi_qla_host *vha = tgt->vha;
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt_sess *sess = NULL;
+ unsigned long flags;
+ uint32_t be_s_id;
+ uint8_t s_id[3];
+ int rc;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+
+ if (tgt->tgt_stop)
+ goto out_term;
+
+ s_id[0] = prm->abts.fcp_hdr_le.s_id[2];
+ s_id[1] = prm->abts.fcp_hdr_le.s_id[1];
+ s_id[2] = prm->abts.fcp_hdr_le.s_id[0];
+
+ sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha,
+ (unsigned char *)&be_s_id);
+ if (!sess) {
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ mutex_lock(&ha->tgt.tgt_mutex);
+ sess = qlt_make_local_sess(vha, s_id);
+ /* sess has got an extra creation ref */
+ mutex_unlock(&ha->tgt.tgt_mutex);
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ if (!sess)
+ goto out_term;
+ } else {
+ kref_get(&sess->se_sess->sess_kref);
+ }
+
+ if (tgt->tgt_stop)
+ goto out_term;
+
+ rc = __qlt_24xx_handle_abts(vha, &prm->abts, sess);
+ if (rc != 0)
+ goto out_term;
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ ha->tgt.tgt_ops->put_sess(sess);
+ return;
+
+out_term:
+ qlt_24xx_send_abts_resp(vha, &prm->abts, FCP_TMF_REJECTED, false);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ if (sess)
+ ha->tgt.tgt_ops->put_sess(sess);
+}
+
+static void qlt_tmr_work(struct qla_tgt *tgt,
+ struct qla_tgt_sess_work_param *prm)
+{
+ struct atio_from_isp *a = &prm->tm_iocb2;
+ struct scsi_qla_host *vha = tgt->vha;
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt_sess *sess = NULL;
+ unsigned long flags;
+ uint8_t *s_id = NULL; /* to hide compiler warnings */
+ int rc;
+ uint32_t lun, unpacked_lun;
+ int lun_size, fn;
+ void *iocb;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+
+ if (tgt->tgt_stop)
+ goto out_term;
+
+ s_id = prm->tm_iocb2.u.isp24.fcp_hdr.s_id;
+ sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
+ if (!sess) {
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ mutex_lock(&ha->tgt.tgt_mutex);
+ sess = qlt_make_local_sess(vha, s_id);
+ /* sess has got an extra creation ref */
+ mutex_unlock(&ha->tgt.tgt_mutex);
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ if (!sess)
+ goto out_term;
+ } else {
+ kref_get(&sess->se_sess->sess_kref);
+ }
+
+ iocb = a;
+ lun = a->u.isp24.fcp_cmnd.lun;
+ lun_size = sizeof(lun);
+ fn = a->u.isp24.fcp_cmnd.task_mgmt_flags;
+ unpacked_lun = scsilun_to_int((struct scsi_lun *)&lun);
+
+ rc = qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0);
+ if (rc != 0)
+ goto out_term;
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ ha->tgt.tgt_ops->put_sess(sess);
+ return;
+
+out_term:
+ qlt_send_term_exchange(vha, NULL, &prm->tm_iocb2, 1);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ if (sess)
+ ha->tgt.tgt_ops->put_sess(sess);
+}
+
+static void qlt_sess_work_fn(struct work_struct *work)
+{
+ struct qla_tgt *tgt = container_of(work, struct qla_tgt, sess_work);
+ struct scsi_qla_host *vha = tgt->vha;
+ unsigned long flags;
+
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf000, "Sess work (tgt %p)", tgt);
+
+ spin_lock_irqsave(&tgt->sess_work_lock, flags);
+ while (!list_empty(&tgt->sess_works_list)) {
+ struct qla_tgt_sess_work_param *prm = list_entry(
+ tgt->sess_works_list.next, typeof(*prm),
+ sess_works_list_entry);
+
+ /*
+ * This work can be scheduled on several CPUs at time, so we
+ * must delete the entry to eliminate double processing
+ */
+ list_del(&prm->sess_works_list_entry);
+
+ spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
+
+ switch (prm->type) {
+ case QLA_TGT_SESS_WORK_ABORT:
+ qlt_abort_work(tgt, prm);
+ break;
+ case QLA_TGT_SESS_WORK_TM:
+ qlt_tmr_work(tgt, prm);
+ break;
+ default:
+ BUG_ON(1);
+ break;
+ }
+
+ spin_lock_irqsave(&tgt->sess_work_lock, flags);
+
+ kfree(prm);
+ }
+ spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
+}
+
+/* Must be called under tgt_host_action_mutex */
+int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha)
+{
+ struct qla_tgt *tgt;
+
+ if (!QLA_TGT_MODE_ENABLED())
+ return 0;
+
+ ql_dbg(ql_dbg_tgt, base_vha, 0xe03b,
+ "Registering target for host %ld(%p)", base_vha->host_no, ha);
+
+ BUG_ON((ha->tgt.qla_tgt != NULL) || (ha->tgt.tgt_ops != NULL));
+
+ tgt = kzalloc(sizeof(struct qla_tgt), GFP_KERNEL);
+ if (!tgt) {
+ ql_dbg(ql_dbg_tgt, base_vha, 0xe066,
+ "Unable to allocate struct qla_tgt\n");
+ return -ENOMEM;
+ }
+
+ if (!(base_vha->host->hostt->supported_mode & MODE_TARGET))
+ base_vha->host->hostt->supported_mode |= MODE_TARGET;
+
+ tgt->ha = ha;
+ tgt->vha = base_vha;
+ init_waitqueue_head(&tgt->waitQ);
+ INIT_LIST_HEAD(&tgt->sess_list);
+ INIT_LIST_HEAD(&tgt->del_sess_list);
+ INIT_DELAYED_WORK(&tgt->sess_del_work,
+ (void (*)(struct work_struct *))qlt_del_sess_work_fn);
+ spin_lock_init(&tgt->sess_work_lock);
+ INIT_WORK(&tgt->sess_work, qlt_sess_work_fn);
+ INIT_LIST_HEAD(&tgt->sess_works_list);
+ spin_lock_init(&tgt->srr_lock);
+ INIT_LIST_HEAD(&tgt->srr_ctio_list);
+ INIT_LIST_HEAD(&tgt->srr_imm_list);
+ INIT_WORK(&tgt->srr_work, qlt_handle_srr_work);
+ atomic_set(&tgt->tgt_global_resets_count, 0);
+
+ ha->tgt.qla_tgt = tgt;
+
+ ql_dbg(ql_dbg_tgt, base_vha, 0xe067,
+ "qla_target(%d): using 64 Bit PCI addressing",
+ base_vha->vp_idx);
+ tgt->tgt_enable_64bit_addr = 1;
+ /* 3 is reserved */
+ tgt->sg_tablesize = QLA_TGT_MAX_SG_24XX(base_vha->req->length - 3);
+ tgt->datasegs_per_cmd = QLA_TGT_DATASEGS_PER_CMD_24XX;
+ tgt->datasegs_per_cont = QLA_TGT_DATASEGS_PER_CONT_24XX;
+
+ mutex_lock(&qla_tgt_mutex);
+ list_add_tail(&tgt->tgt_list_entry, &qla_tgt_glist);
+ mutex_unlock(&qla_tgt_mutex);
+
+ return 0;
+}
+
+/* Must be called under tgt_host_action_mutex */
+int qlt_remove_target(struct qla_hw_data *ha, struct scsi_qla_host *vha)
+{
+ if (!ha->tgt.qla_tgt)
+ return 0;
+
+ mutex_lock(&qla_tgt_mutex);
+ list_del(&ha->tgt.qla_tgt->tgt_list_entry);
+ mutex_unlock(&qla_tgt_mutex);
+
+ ql_dbg(ql_dbg_tgt, vha, 0xe03c, "Unregistering target for host %ld(%p)",
+ vha->host_no, ha);
+ qlt_release(ha->tgt.qla_tgt);
+
+ return 0;
+}
+
+static void qlt_lport_dump(struct scsi_qla_host *vha, u64 wwpn,
+ unsigned char *b)
+{
+ int i;
+
+ pr_debug("qla2xxx HW vha->node_name: ");
+ for (i = 0; i < WWN_SIZE; i++)
+ pr_debug("%02x ", vha->node_name[i]);
+ pr_debug("\n");
+ pr_debug("qla2xxx HW vha->port_name: ");
+ for (i = 0; i < WWN_SIZE; i++)
+ pr_debug("%02x ", vha->port_name[i]);
+ pr_debug("\n");
+
+ pr_debug("qla2xxx passed configfs WWPN: ");
+ put_unaligned_be64(wwpn, b);
+ for (i = 0; i < WWN_SIZE; i++)
+ pr_debug("%02x ", b[i]);
+ pr_debug("\n");
+}
+
+/**
+ * qla_tgt_lport_register - register lport with external module
+ *
+ * @qla_tgt_ops: Pointer for tcm_qla2xxx qla_tgt_ops
+ * @wwpn: Passwd FC target WWPN
+ * @callback: lport initialization callback for tcm_qla2xxx code
+ * @target_lport_ptr: pointer for tcm_qla2xxx specific lport data
+ */
+int qlt_lport_register(struct qla_tgt_func_tmpl *qla_tgt_ops, u64 wwpn,
+ int (*callback)(struct scsi_qla_host *), void *target_lport_ptr)
+{
+ struct qla_tgt *tgt;
+ struct scsi_qla_host *vha;
+ struct qla_hw_data *ha;
+ struct Scsi_Host *host;
+ unsigned long flags;
+ int rc;
+ u8 b[WWN_SIZE];
+
+ mutex_lock(&qla_tgt_mutex);
+ list_for_each_entry(tgt, &qla_tgt_glist, tgt_list_entry) {
+ vha = tgt->vha;
+ ha = vha->hw;
+
+ host = vha->host;
+ if (!host)
+ continue;
+
+ if (ha->tgt.tgt_ops != NULL)
+ continue;
+
+ if (!(host->hostt->supported_mode & MODE_TARGET))
+ continue;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ if (host->active_mode & MODE_TARGET) {
+ pr_debug("MODE_TARGET already active on qla2xxx(%d)\n",
+ host->host_no);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ continue;
+ }
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ if (!scsi_host_get(host)) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe068,
+ "Unable to scsi_host_get() for"
+ " qla2xxx scsi_host\n");
+ continue;
+ }
+ qlt_lport_dump(vha, wwpn, b);
+
+ if (memcmp(vha->port_name, b, WWN_SIZE)) {
+ scsi_host_put(host);
+ continue;
+ }
+ /*
+ * Setup passed parameters ahead of invoking callback
+ */
+ ha->tgt.tgt_ops = qla_tgt_ops;
+ ha->tgt.target_lport_ptr = target_lport_ptr;
+ rc = (*callback)(vha);
+ if (rc != 0) {
+ ha->tgt.tgt_ops = NULL;
+ ha->tgt.target_lport_ptr = NULL;
+ }
+ mutex_unlock(&qla_tgt_mutex);
+ return rc;
+ }
+ mutex_unlock(&qla_tgt_mutex);
+
+ return -ENODEV;
+}
+EXPORT_SYMBOL(qlt_lport_register);
+
+/**
+ * qla_tgt_lport_deregister - Degister lport
+ *
+ * @vha: Registered scsi_qla_host pointer
+ */
+void qlt_lport_deregister(struct scsi_qla_host *vha)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct Scsi_Host *sh = vha->host;
+ /*
+ * Clear the target_lport_ptr qla_target_template pointer in qla_hw_data
+ */
+ ha->tgt.target_lport_ptr = NULL;
+ ha->tgt.tgt_ops = NULL;
+ /*
+ * Release the Scsi_Host reference for the underlying qla2xxx host
+ */
+ scsi_host_put(sh);
+}
+EXPORT_SYMBOL(qlt_lport_deregister);
+
+/* Must be called under HW lock */
+void qlt_set_mode(struct scsi_qla_host *vha)
+{
+ struct qla_hw_data *ha = vha->hw;
+
+ switch (ql2x_ini_mode) {
+ case QLA2XXX_INI_MODE_DISABLED:
+ case QLA2XXX_INI_MODE_EXCLUSIVE:
+ vha->host->active_mode = MODE_TARGET;
+ break;
+ case QLA2XXX_INI_MODE_ENABLED:
+ vha->host->active_mode |= MODE_TARGET;
+ break;
+ default:
+ break;
+ }
+
+ if (ha->tgt.ini_mode_force_reverse)
+ qla_reverse_ini_mode(vha);
+}
+
+/* Must be called under HW lock */
+void qlt_clear_mode(struct scsi_qla_host *vha)
+{
+ struct qla_hw_data *ha = vha->hw;
+
+ switch (ql2x_ini_mode) {
+ case QLA2XXX_INI_MODE_DISABLED:
+ vha->host->active_mode = MODE_UNKNOWN;
+ break;
+ case QLA2XXX_INI_MODE_EXCLUSIVE:
+ vha->host->active_mode = MODE_INITIATOR;
+ break;
+ case QLA2XXX_INI_MODE_ENABLED:
+ vha->host->active_mode &= ~MODE_TARGET;
+ break;
+ default:
+ break;
+ }
+
+ if (ha->tgt.ini_mode_force_reverse)
+ qla_reverse_ini_mode(vha);
+}
+
+/*
+ * qla_tgt_enable_vha - NO LOCK HELD
+ *
+ * host_reset, bring up w/ Target Mode Enabled
+ */
+void
+qlt_enable_vha(struct scsi_qla_host *vha)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt *tgt = ha->tgt.qla_tgt;
+ unsigned long flags;
+
+ if (!tgt) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe069,
+ "Unable to locate qla_tgt pointer from"
+ " struct qla_hw_data\n");
+ dump_stack();
+ return;
+ }
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ tgt->tgt_stopped = 0;
+ qlt_set_mode(vha);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ qla2xxx_wake_dpc(vha);
+ qla2x00_wait_for_hba_online(vha);
+}
+EXPORT_SYMBOL(qlt_enable_vha);
+
+/*
+ * qla_tgt_disable_vha - NO LOCK HELD
+ *
+ * Disable Target Mode and reset the adapter
+ */
+void
+qlt_disable_vha(struct scsi_qla_host *vha)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt *tgt = ha->tgt.qla_tgt;
+ unsigned long flags;
+
+ if (!tgt) {
+ ql_dbg(ql_dbg_tgt, vha, 0xe06a,
+ "Unable to locate qla_tgt pointer from"
+ " struct qla_hw_data\n");
+ dump_stack();
+ return;
+ }
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ qlt_clear_mode(vha);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ qla2xxx_wake_dpc(vha);
+ qla2x00_wait_for_hba_online(vha);
+}
+
+/*
+ * Called from qla_init.c:qla24xx_vport_create() contex to setup
+ * the target mode specific struct scsi_qla_host and struct qla_hw_data
+ * members.
+ */
+void
+qlt_vport_create(struct scsi_qla_host *vha, struct qla_hw_data *ha)
+{
+ if (!qla_tgt_mode_enabled(vha))
+ return;
+
+ mutex_init(&ha->tgt.tgt_mutex);
+ mutex_init(&ha->tgt.tgt_host_action_mutex);
+
+ qlt_clear_mode(vha);
+
+ /*
+ * NOTE: Currently the value is kept the same for <24xx and
+ * >=24xx ISPs. If it is necessary to change it,
+ * the check should be added for specific ISPs,
+ * assigning the value appropriately.
+ */
+ ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
+}
+
+void
+qlt_rff_id(struct scsi_qla_host *vha, struct ct_sns_req *ct_req)
+{
+ /*
+ * FC-4 Feature bit 0 indicates target functionality to the name server.
+ */
+ if (qla_tgt_mode_enabled(vha)) {
+ if (qla_ini_mode_enabled(vha))
+ ct_req->req.rff_id.fc4_feature = BIT_0 | BIT_1;
+ else
+ ct_req->req.rff_id.fc4_feature = BIT_0;
+ } else if (qla_ini_mode_enabled(vha)) {
+ ct_req->req.rff_id.fc4_feature = BIT_1;
+ }
+}
+
+/*
+ * qlt_init_atio_q_entries() - Initializes ATIO queue entries.
+ * @ha: HA context
+ *
+ * Beginning of ATIO ring has initialization control block already built
+ * by nvram config routine.
+ *
+ * Returns 0 on success.
+ */
+void
+qlt_init_atio_q_entries(struct scsi_qla_host *vha)
+{
+ struct qla_hw_data *ha = vha->hw;
+ uint16_t cnt;
+ struct atio_from_isp *pkt = (struct atio_from_isp *)ha->tgt.atio_ring;
+
+ if (!qla_tgt_mode_enabled(vha))
+ return;
+
+ for (cnt = 0; cnt < ha->tgt.atio_q_length; cnt++) {
+ pkt->u.raw.signature = ATIO_PROCESSED;
+ pkt++;
+ }
+
+}
+
+/*
+ * qlt_24xx_process_atio_queue() - Process ATIO queue entries.
+ * @ha: SCSI driver HA context
+ */
+void
+qlt_24xx_process_atio_queue(struct scsi_qla_host *vha)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
+ struct atio_from_isp *pkt;
+ int cnt, i;
+
+ if (!vha->flags.online)
+ return;
+
+ while (ha->tgt.atio_ring_ptr->signature != ATIO_PROCESSED) {
+ pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr;
+ cnt = pkt->u.raw.entry_count;
+
+ qlt_24xx_atio_pkt_all_vps(vha, (struct atio_from_isp *)pkt);
+
+ for (i = 0; i < cnt; i++) {
+ ha->tgt.atio_ring_index++;
+ if (ha->tgt.atio_ring_index == ha->tgt.atio_q_length) {
+ ha->tgt.atio_ring_index = 0;
+ ha->tgt.atio_ring_ptr = ha->tgt.atio_ring;
+ } else
+ ha->tgt.atio_ring_ptr++;
+
+ pkt->u.raw.signature = ATIO_PROCESSED;
+ pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr;
+ }
+ wmb();
+ }
+
+ /* Adjust ring index */
+ WRT_REG_DWORD(®->atio_q_out, ha->tgt.atio_ring_index);
+}
+
+void
+qlt_24xx_config_rings(struct scsi_qla_host *vha, device_reg_t __iomem *reg)
+{
+ struct qla_hw_data *ha = vha->hw;
+
+/* FIXME: atio_q in/out for ha->mqenable=1..? */
+ if (ha->mqenable) {
+#if 0
+ WRT_REG_DWORD(®->isp25mq.atio_q_in, 0);
+ WRT_REG_DWORD(®->isp25mq.atio_q_out, 0);
+ RD_REG_DWORD(®->isp25mq.atio_q_out);
+#endif
+ } else {
+ /* Setup APTIO registers for target mode */
+ WRT_REG_DWORD(®->isp24.atio_q_in, 0);
+ WRT_REG_DWORD(®->isp24.atio_q_out, 0);
+ RD_REG_DWORD(®->isp24.atio_q_out);
+ }
+}
+
+void
+qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv)
+{
+ struct qla_hw_data *ha = vha->hw;
+
+ if (qla_tgt_mode_enabled(vha)) {
+ if (!ha->tgt.saved_set) {
+ /* We save only once */
+ ha->tgt.saved_exchange_count = nv->exchange_count;
+ ha->tgt.saved_firmware_options_1 =
+ nv->firmware_options_1;
+ ha->tgt.saved_firmware_options_2 =
+ nv->firmware_options_2;
+ ha->tgt.saved_firmware_options_3 =
+ nv->firmware_options_3;
+ ha->tgt.saved_set = 1;
+ }
+
+ nv->exchange_count = __constant_cpu_to_le16(0xFFFF);
+
+ /* Enable target mode */
+ nv->firmware_options_1 |= __constant_cpu_to_le32(BIT_4);
+
+ /* Disable ini mode, if requested */
+ if (!qla_ini_mode_enabled(vha))
+ nv->firmware_options_1 |= __constant_cpu_to_le32(BIT_5);
+
+ /* Disable Full Login after LIP */
+ nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_13);
+ /* Enable initial LIP */
+ nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_9);
+ /* Enable FC tapes support */
+ nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
+ /* Disable Full Login after LIP */
+ nv->host_p &= __constant_cpu_to_le32(~BIT_10);
+ /* Enable target PRLI control */
+ nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_14);
+ } else {
+ if (ha->tgt.saved_set) {
+ nv->exchange_count = ha->tgt.saved_exchange_count;
+ nv->firmware_options_1 =
+ ha->tgt.saved_firmware_options_1;
+ nv->firmware_options_2 =
+ ha->tgt.saved_firmware_options_2;
+ nv->firmware_options_3 =
+ ha->tgt.saved_firmware_options_3;
+ }
+ return;
+ }
+
+ /* out-of-order frames reassembly */
+ nv->firmware_options_3 |= BIT_6|BIT_9;
+
+ if (ha->tgt.enable_class_2) {
+ if (vha->flags.init_done)
+ fc_host_supported_classes(vha->host) =
+ FC_COS_CLASS2 | FC_COS_CLASS3;
+
+ nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_8);
+ } else {
+ if (vha->flags.init_done)
+ fc_host_supported_classes(vha->host) = FC_COS_CLASS3;
+
+ nv->firmware_options_2 &= ~__constant_cpu_to_le32(BIT_8);
+ }
+}
+
+void
+qlt_24xx_config_nvram_stage2(struct scsi_qla_host *vha,
+ struct init_cb_24xx *icb)
+{
+ struct qla_hw_data *ha = vha->hw;
+
+ if (ha->tgt.node_name_set) {
+ memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE);
+ icb->firmware_options_1 |= __constant_cpu_to_le32(BIT_14);
+ }
+}
+
+int
+qlt_24xx_process_response_error(struct scsi_qla_host *vha,
+ struct sts_entry_24xx *pkt)
+{
+ switch (pkt->entry_type) {
+ case ABTS_RECV_24XX:
+ case ABTS_RESP_24XX:
+ case CTIO_TYPE7:
+ case NOTIFY_ACK_TYPE:
+ return 1;
+ default:
+ return 0;
+ }
+}
+
+void
+qlt_modify_vp_config(struct scsi_qla_host *vha,
+ struct vp_config_entry_24xx *vpmod)
+{
+ if (qla_tgt_mode_enabled(vha))
+ vpmod->options_idx1 &= ~BIT_5;
+ /* Disable ini mode, if requested */
+ if (!qla_ini_mode_enabled(vha))
+ vpmod->options_idx1 &= ~BIT_4;
+}
+
+void
+qlt_probe_one_stage1(struct scsi_qla_host *base_vha, struct qla_hw_data *ha)
+{
+ if (!QLA_TGT_MODE_ENABLED())
+ return;
+
+ mutex_init(&ha->tgt.tgt_mutex);
+ mutex_init(&ha->tgt.tgt_host_action_mutex);
+ qlt_clear_mode(base_vha);
+}
+
+int
+qlt_mem_alloc(struct qla_hw_data *ha)
+{
+ if (!QLA_TGT_MODE_ENABLED())
+ return 0;
+
+ ha->tgt.tgt_vp_map = kzalloc(sizeof(struct qla_tgt_vp_map) *
+ MAX_MULTI_ID_FABRIC, GFP_KERNEL);
+ if (!ha->tgt.tgt_vp_map)
+ return -ENOMEM;
+
+ ha->tgt.atio_ring = dma_alloc_coherent(&ha->pdev->dev,
+ (ha->tgt.atio_q_length + 1) * sizeof(struct atio_from_isp),
+ &ha->tgt.atio_dma, GFP_KERNEL);
+ if (!ha->tgt.atio_ring) {
+ kfree(ha->tgt.tgt_vp_map);
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+void
+qlt_mem_free(struct qla_hw_data *ha)
+{
+ if (!QLA_TGT_MODE_ENABLED())
+ return;
+
+ if (ha->tgt.atio_ring) {
+ dma_free_coherent(&ha->pdev->dev, (ha->tgt.atio_q_length + 1) *
+ sizeof(struct atio_from_isp), ha->tgt.atio_ring,
+ ha->tgt.atio_dma);
+ }
+ kfree(ha->tgt.tgt_vp_map);
+}
+
+/* vport_slock to be held by the caller */
+void
+qlt_update_vp_map(struct scsi_qla_host *vha, int cmd)
+{
+ if (!QLA_TGT_MODE_ENABLED())
+ return;
+
+ switch (cmd) {
+ case SET_VP_IDX:
+ vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = vha;
+ break;
+ case SET_AL_PA:
+ vha->hw->tgt.tgt_vp_map[vha->d_id.b.al_pa].idx = vha->vp_idx;
+ break;
+ case RESET_VP_IDX:
+ vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = NULL;
+ break;
+ case RESET_AL_PA:
+ vha->hw->tgt.tgt_vp_map[vha->d_id.b.al_pa].idx = 0;
+ break;
+ }
+}
+
+static int __init qlt_parse_ini_mode(void)
+{
+ if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_EXCLUSIVE) == 0)
+ ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE;
+ else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DISABLED) == 0)
+ ql2x_ini_mode = QLA2XXX_INI_MODE_DISABLED;
+ else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_ENABLED) == 0)
+ ql2x_ini_mode = QLA2XXX_INI_MODE_ENABLED;
+ else
+ return false;
+
+ return true;
+}
+
+int __init qlt_init(void)
+{
+ int ret;
+
+ if (!qlt_parse_ini_mode()) {
+ ql_log(ql_log_fatal, NULL, 0xe06b,
+ "qlt_parse_ini_mode() failed\n");
+ return -EINVAL;
+ }
+
+ if (!QLA_TGT_MODE_ENABLED())
+ return 0;
+
+ qla_tgt_cmd_cachep = kmem_cache_create("qla_tgt_cmd_cachep",
+ sizeof(struct qla_tgt_cmd), __alignof__(struct qla_tgt_cmd), 0,
+ NULL);
+ if (!qla_tgt_cmd_cachep) {
+ ql_log(ql_log_fatal, NULL, 0xe06c,
+ "kmem_cache_create for qla_tgt_cmd_cachep failed\n");
+ return -ENOMEM;
+ }
+
+ qla_tgt_mgmt_cmd_cachep = kmem_cache_create("qla_tgt_mgmt_cmd_cachep",
+ sizeof(struct qla_tgt_mgmt_cmd), __alignof__(struct
+ qla_tgt_mgmt_cmd), 0, NULL);
+ if (!qla_tgt_mgmt_cmd_cachep) {
+ ql_log(ql_log_fatal, NULL, 0xe06d,
+ "kmem_cache_create for qla_tgt_mgmt_cmd_cachep failed\n");
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ qla_tgt_mgmt_cmd_mempool = mempool_create(25, mempool_alloc_slab,
+ mempool_free_slab, qla_tgt_mgmt_cmd_cachep);
+ if (!qla_tgt_mgmt_cmd_mempool) {
+ ql_log(ql_log_fatal, NULL, 0xe06e,
+ "mempool_create for qla_tgt_mgmt_cmd_mempool failed\n");
+ ret = -ENOMEM;
+ goto out_mgmt_cmd_cachep;
+ }
+
+ qla_tgt_wq = alloc_workqueue("qla_tgt_wq", 0, 0);
+ if (!qla_tgt_wq) {
+ ql_log(ql_log_fatal, NULL, 0xe06f,
+ "alloc_workqueue for qla_tgt_wq failed\n");
+ ret = -ENOMEM;
+ goto out_cmd_mempool;
+ }
+ /*
+ * Return 1 to signal that initiator-mode is being disabled
+ */
+ return (ql2x_ini_mode == QLA2XXX_INI_MODE_DISABLED) ? 1 : 0;
+
+out_cmd_mempool:
+ mempool_destroy(qla_tgt_mgmt_cmd_mempool);
+out_mgmt_cmd_cachep:
+ kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep);
+out:
+ kmem_cache_destroy(qla_tgt_cmd_cachep);
+ return ret;
+}
+
+void qlt_exit(void)
+{
+ if (!QLA_TGT_MODE_ENABLED())
+ return;
+
+ destroy_workqueue(qla_tgt_wq);
+ mempool_destroy(qla_tgt_mgmt_cmd_mempool);
+ kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep);
+ kmem_cache_destroy(qla_tgt_cmd_cachep);
+}
--- /dev/null
+/*
+ * Copyright (C) 2004 - 2010 Vladislav Bolkhovitin <vst@vlnb.net>
+ * Copyright (C) 2004 - 2005 Leonid Stoljar
+ * Copyright (C) 2006 Nathaniel Clark <nate@misrule.us>
+ * Copyright (C) 2007 - 2010 ID7 Ltd.
+ *
+ * Forward port and refactoring to modern qla2xxx and target/configfs
+ *
+ * Copyright (C) 2010-2011 Nicholas A. Bellinger <nab@kernel.org>
+ *
+ * Additional file for the target driver support.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+/*
+ * This is the global def file that is useful for including from the
+ * target portion.
+ */
+
+#ifndef __QLA_TARGET_H
+#define __QLA_TARGET_H
+
+#include "qla_def.h"
+
+/*
+ * Must be changed on any change in any initiator visible interfaces or
+ * data in the target add-on
+ */
+#define QLA2XXX_TARGET_MAGIC 269
+
+/*
+ * Must be changed on any change in any target visible interfaces or
+ * data in the initiator
+ */
+#define QLA2XXX_INITIATOR_MAGIC 57222
+
+#define QLA2XXX_INI_MODE_STR_EXCLUSIVE "exclusive"
+#define QLA2XXX_INI_MODE_STR_DISABLED "disabled"
+#define QLA2XXX_INI_MODE_STR_ENABLED "enabled"
+
+#define QLA2XXX_INI_MODE_EXCLUSIVE 0
+#define QLA2XXX_INI_MODE_DISABLED 1
+#define QLA2XXX_INI_MODE_ENABLED 2
+
+#define QLA2XXX_COMMAND_COUNT_INIT 250
+#define QLA2XXX_IMMED_NOTIFY_COUNT_INIT 250
+
+/*
+ * Used to mark which completion handles (for RIO Status's) are for CTIO's
+ * vs. regular (non-target) info. This is checked for in
+ * qla2x00_process_response_queue() to see if a handle coming back in a
+ * multi-complete should come to the tgt driver or be handled there by qla2xxx
+ */
+#define CTIO_COMPLETION_HANDLE_MARK BIT_29
+#if (CTIO_COMPLETION_HANDLE_MARK <= MAX_OUTSTANDING_COMMANDS)
+#error "CTIO_COMPLETION_HANDLE_MARK not larger than MAX_OUTSTANDING_COMMANDS"
+#endif
+#define HANDLE_IS_CTIO_COMP(h) (h & CTIO_COMPLETION_HANDLE_MARK)
+
+/* Used to mark CTIO as intermediate */
+#define CTIO_INTERMEDIATE_HANDLE_MARK BIT_30
+
+#ifndef OF_SS_MODE_0
+/*
+ * ISP target entries - Flags bit definitions.
+ */
+#define OF_SS_MODE_0 0
+#define OF_SS_MODE_1 1
+#define OF_SS_MODE_2 2
+#define OF_SS_MODE_3 3
+
+#define OF_EXPL_CONF BIT_5 /* Explicit Confirmation Requested */
+#define OF_DATA_IN BIT_6 /* Data in to initiator */
+ /* (data from target to initiator) */
+#define OF_DATA_OUT BIT_7 /* Data out from initiator */
+ /* (data from initiator to target) */
+#define OF_NO_DATA (BIT_7 | BIT_6)
+#define OF_INC_RC BIT_8 /* Increment command resource count */
+#define OF_FAST_POST BIT_9 /* Enable mailbox fast posting. */
+#define OF_CONF_REQ BIT_13 /* Confirmation Requested */
+#define OF_TERM_EXCH BIT_14 /* Terminate exchange */
+#define OF_SSTS BIT_15 /* Send SCSI status */
+#endif
+
+#ifndef QLA_TGT_DATASEGS_PER_CMD32
+#define QLA_TGT_DATASEGS_PER_CMD32 3
+#define QLA_TGT_DATASEGS_PER_CONT32 7
+#define QLA_TGT_MAX_SG32(ql) \
+ (((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD32 + \
+ QLA_TGT_DATASEGS_PER_CONT32*((ql) - 1)) : 0)
+
+#define QLA_TGT_DATASEGS_PER_CMD64 2
+#define QLA_TGT_DATASEGS_PER_CONT64 5
+#define QLA_TGT_MAX_SG64(ql) \
+ (((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD64 + \
+ QLA_TGT_DATASEGS_PER_CONT64*((ql) - 1)) : 0)
+#endif
+
+#ifndef QLA_TGT_DATASEGS_PER_CMD_24XX
+#define QLA_TGT_DATASEGS_PER_CMD_24XX 1
+#define QLA_TGT_DATASEGS_PER_CONT_24XX 5
+#define QLA_TGT_MAX_SG_24XX(ql) \
+ (min(1270, ((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD_24XX + \
+ QLA_TGT_DATASEGS_PER_CONT_24XX*((ql) - 1)) : 0))
+#endif
+#endif
+
+#define GET_TARGET_ID(ha, iocb) ((HAS_EXTENDED_IDS(ha)) \
+ ? le16_to_cpu((iocb)->u.isp2x.target.extended) \
+ : (uint16_t)(iocb)->u.isp2x.target.id.standard)
+
+#ifndef IMMED_NOTIFY_TYPE
+#define IMMED_NOTIFY_TYPE 0x0D /* Immediate notify entry. */
+/*
+ * ISP queue - immediate notify entry structure definition.
+ * This is sent by the ISP to the Target driver.
+ * This IOCB would have report of events sent by the
+ * initiator, that needs to be handled by the target
+ * driver immediately.
+ */
+struct imm_ntfy_from_isp {
+ uint8_t entry_type; /* Entry type. */
+ uint8_t entry_count; /* Entry count. */
+ uint8_t sys_define; /* System defined. */
+ uint8_t entry_status; /* Entry Status. */
+ union {
+ struct {
+ uint32_t sys_define_2; /* System defined. */
+ target_id_t target;
+ uint16_t lun;
+ uint8_t target_id;
+ uint8_t reserved_1;
+ uint16_t status_modifier;
+ uint16_t status;
+ uint16_t task_flags;
+ uint16_t seq_id;
+ uint16_t srr_rx_id;
+ uint32_t srr_rel_offs;
+ uint16_t srr_ui;
+#define SRR_IU_DATA_IN 0x1
+#define SRR_IU_DATA_OUT 0x5
+#define SRR_IU_STATUS 0x7
+ uint16_t srr_ox_id;
+ uint8_t reserved_2[28];
+ } isp2x;
+ struct {
+ uint32_t reserved;
+ uint16_t nport_handle;
+ uint16_t reserved_2;
+ uint16_t flags;
+#define NOTIFY24XX_FLAGS_GLOBAL_TPRLO BIT_1
+#define NOTIFY24XX_FLAGS_PUREX_IOCB BIT_0
+ uint16_t srr_rx_id;
+ uint16_t status;
+ uint8_t status_subcode;
+ uint8_t reserved_3;
+ uint32_t exchange_address;
+ uint32_t srr_rel_offs;
+ uint16_t srr_ui;
+ uint16_t srr_ox_id;
+ uint8_t reserved_4[19];
+ uint8_t vp_index;
+ uint32_t reserved_5;
+ uint8_t port_id[3];
+ uint8_t reserved_6;
+ } isp24;
+ } u;
+ uint16_t reserved_7;
+ uint16_t ox_id;
+} __packed;
+#endif
+
+#ifndef NOTIFY_ACK_TYPE
+#define NOTIFY_ACK_TYPE 0x0E /* Notify acknowledge entry. */
+/*
+ * ISP queue - notify acknowledge entry structure definition.
+ * This is sent to the ISP from the target driver.
+ */
+struct nack_to_isp {
+ uint8_t entry_type; /* Entry type. */
+ uint8_t entry_count; /* Entry count. */
+ uint8_t sys_define; /* System defined. */
+ uint8_t entry_status; /* Entry Status. */
+ union {
+ struct {
+ uint32_t sys_define_2; /* System defined. */
+ target_id_t target;
+ uint8_t target_id;
+ uint8_t reserved_1;
+ uint16_t flags;
+ uint16_t resp_code;
+ uint16_t status;
+ uint16_t task_flags;
+ uint16_t seq_id;
+ uint16_t srr_rx_id;
+ uint32_t srr_rel_offs;
+ uint16_t srr_ui;
+ uint16_t srr_flags;
+ uint16_t srr_reject_code;
+ uint8_t srr_reject_vendor_uniq;
+ uint8_t srr_reject_code_expl;
+ uint8_t reserved_2[24];
+ } isp2x;
+ struct {
+ uint32_t handle;
+ uint16_t nport_handle;
+ uint16_t reserved_1;
+ uint16_t flags;
+ uint16_t srr_rx_id;
+ uint16_t status;
+ uint8_t status_subcode;
+ uint8_t reserved_3;
+ uint32_t exchange_address;
+ uint32_t srr_rel_offs;
+ uint16_t srr_ui;
+ uint16_t srr_flags;
+ uint8_t reserved_4[19];
+ uint8_t vp_index;
+ uint8_t srr_reject_vendor_uniq;
+ uint8_t srr_reject_code_expl;
+ uint8_t srr_reject_code;
+ uint8_t reserved_5[5];
+ } isp24;
+ } u;
+ uint8_t reserved[2];
+ uint16_t ox_id;
+} __packed;
+#define NOTIFY_ACK_SRR_FLAGS_ACCEPT 0
+#define NOTIFY_ACK_SRR_FLAGS_REJECT 1
+
+#define NOTIFY_ACK_SRR_REJECT_REASON_UNABLE_TO_PERFORM 0x9
+
+#define NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_NO_EXPL 0
+#define NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_UNABLE_TO_SUPPLY_DATA 0x2a
+
+#define NOTIFY_ACK_SUCCESS 0x01
+#endif
+
+#ifndef ACCEPT_TGT_IO_TYPE
+#define ACCEPT_TGT_IO_TYPE 0x16 /* Accept target I/O entry. */
+#endif
+
+#ifndef CONTINUE_TGT_IO_TYPE
+#define CONTINUE_TGT_IO_TYPE 0x17
+/*
+ * ISP queue - Continue Target I/O (CTIO) entry for status mode 0 structure.
+ * This structure is sent to the ISP 2xxx from target driver.
+ */
+struct ctio_to_2xxx {
+ uint8_t entry_type; /* Entry type. */
+ uint8_t entry_count; /* Entry count. */
+ uint8_t sys_define; /* System defined. */
+ uint8_t entry_status; /* Entry Status. */
+ uint32_t handle; /* System defined handle */
+ target_id_t target;
+ uint16_t rx_id;
+ uint16_t flags;
+ uint16_t status;
+ uint16_t timeout; /* 0 = 30 seconds, 0xFFFF = disable */
+ uint16_t dseg_count; /* Data segment count. */
+ uint32_t relative_offset;
+ uint32_t residual;
+ uint16_t reserved_1[3];
+ uint16_t scsi_status;
+ uint32_t transfer_length;
+ uint32_t dseg_0_address; /* Data segment 0 address. */
+ uint32_t dseg_0_length; /* Data segment 0 length. */
+ uint32_t dseg_1_address; /* Data segment 1 address. */
+ uint32_t dseg_1_length; /* Data segment 1 length. */
+ uint32_t dseg_2_address; /* Data segment 2 address. */
+ uint32_t dseg_2_length; /* Data segment 2 length. */
+} __packed;
+#define ATIO_PATH_INVALID 0x07
+#define ATIO_CANT_PROV_CAP 0x16
+#define ATIO_CDB_VALID 0x3D
+
+#define ATIO_EXEC_READ BIT_1
+#define ATIO_EXEC_WRITE BIT_0
+#endif
+
+#ifndef CTIO_A64_TYPE
+#define CTIO_A64_TYPE 0x1F
+#define CTIO_SUCCESS 0x01
+#define CTIO_ABORTED 0x02
+#define CTIO_INVALID_RX_ID 0x08
+#define CTIO_TIMEOUT 0x0B
+#define CTIO_LIP_RESET 0x0E
+#define CTIO_TARGET_RESET 0x17
+#define CTIO_PORT_UNAVAILABLE 0x28
+#define CTIO_PORT_LOGGED_OUT 0x29
+#define CTIO_PORT_CONF_CHANGED 0x2A
+#define CTIO_SRR_RECEIVED 0x45
+#endif
+
+#ifndef CTIO_RET_TYPE
+#define CTIO_RET_TYPE 0x17 /* CTIO return entry */
+#define ATIO_TYPE7 0x06 /* Accept target I/O entry for 24xx */
+
+struct fcp_hdr {
+ uint8_t r_ctl;
+ uint8_t d_id[3];
+ uint8_t cs_ctl;
+ uint8_t s_id[3];
+ uint8_t type;
+ uint8_t f_ctl[3];
+ uint8_t seq_id;
+ uint8_t df_ctl;
+ uint16_t seq_cnt;
+ uint16_t ox_id;
+ uint16_t rx_id;
+ uint32_t parameter;
+} __packed;
+
+struct fcp_hdr_le {
+ uint8_t d_id[3];
+ uint8_t r_ctl;
+ uint8_t s_id[3];
+ uint8_t cs_ctl;
+ uint8_t f_ctl[3];
+ uint8_t type;
+ uint16_t seq_cnt;
+ uint8_t df_ctl;
+ uint8_t seq_id;
+ uint16_t rx_id;
+ uint16_t ox_id;
+ uint32_t parameter;
+} __packed;
+
+#define F_CTL_EXCH_CONTEXT_RESP BIT_23
+#define F_CTL_SEQ_CONTEXT_RESIP BIT_22
+#define F_CTL_LAST_SEQ BIT_20
+#define F_CTL_END_SEQ BIT_19
+#define F_CTL_SEQ_INITIATIVE BIT_16
+
+#define R_CTL_BASIC_LINK_SERV 0x80
+#define R_CTL_B_ACC 0x4
+#define R_CTL_B_RJT 0x5
+
+struct atio7_fcp_cmnd {
+ uint64_t lun;
+ uint8_t cmnd_ref;
+ uint8_t task_attr:3;
+ uint8_t reserved:5;
+ uint8_t task_mgmt_flags;
+#define FCP_CMND_TASK_MGMT_CLEAR_ACA 6
+#define FCP_CMND_TASK_MGMT_TARGET_RESET 5
+#define FCP_CMND_TASK_MGMT_LU_RESET 4
+#define FCP_CMND_TASK_MGMT_CLEAR_TASK_SET 2
+#define FCP_CMND_TASK_MGMT_ABORT_TASK_SET 1
+ uint8_t wrdata:1;
+ uint8_t rddata:1;
+ uint8_t add_cdb_len:6;
+ uint8_t cdb[16];
+ /*
+ * add_cdb is optional and can absent from struct atio7_fcp_cmnd. Size 4
+ * only to make sizeof(struct atio7_fcp_cmnd) be as expected by
+ * BUILD_BUG_ON in qlt_init().
+ */
+ uint8_t add_cdb[4];
+ /* uint32_t data_length; */
+} __packed;
+
+/*
+ * ISP queue - Accept Target I/O (ATIO) type entry IOCB structure.
+ * This is sent from the ISP to the target driver.
+ */
+struct atio_from_isp {
+ union {
+ struct {
+ uint16_t entry_hdr;
+ uint8_t sys_define; /* System defined. */
+ uint8_t entry_status; /* Entry Status. */
+ uint32_t sys_define_2; /* System defined. */
+ target_id_t target;
+ uint16_t rx_id;
+ uint16_t flags;
+ uint16_t status;
+ uint8_t command_ref;
+ uint8_t task_codes;
+ uint8_t task_flags;
+ uint8_t execution_codes;
+ uint8_t cdb[MAX_CMDSZ];
+ uint32_t data_length;
+ uint16_t lun;
+ uint8_t initiator_port_name[WWN_SIZE]; /* on qla23xx */
+ uint16_t reserved_32[6];
+ uint16_t ox_id;
+ } isp2x;
+ struct {
+ uint16_t entry_hdr;
+ uint8_t fcp_cmnd_len_low;
+ uint8_t fcp_cmnd_len_high:4;
+ uint8_t attr:4;
+ uint32_t exchange_addr;
+#define ATIO_EXCHANGE_ADDRESS_UNKNOWN 0xFFFFFFFF
+ struct fcp_hdr fcp_hdr;
+ struct atio7_fcp_cmnd fcp_cmnd;
+ } isp24;
+ struct {
+ uint8_t entry_type; /* Entry type. */
+ uint8_t entry_count; /* Entry count. */
+ uint8_t data[58];
+ uint32_t signature;
+#define ATIO_PROCESSED 0xDEADDEAD /* Signature */
+ } raw;
+ } u;
+} __packed;
+
+#define CTIO_TYPE7 0x12 /* Continue target I/O entry (for 24xx) */
+
+/*
+ * ISP queue - Continue Target I/O (ATIO) type 7 entry (for 24xx) structure.
+ * This structure is sent to the ISP 24xx from the target driver.
+ */
+
+struct ctio7_to_24xx {
+ uint8_t entry_type; /* Entry type. */
+ uint8_t entry_count; /* Entry count. */
+ uint8_t sys_define; /* System defined. */
+ uint8_t entry_status; /* Entry Status. */
+ uint32_t handle; /* System defined handle */
+ uint16_t nport_handle;
+#define CTIO7_NHANDLE_UNRECOGNIZED 0xFFFF
+ uint16_t timeout;
+ uint16_t dseg_count; /* Data segment count. */
+ uint8_t vp_index;
+ uint8_t add_flags;
+ uint8_t initiator_id[3];
+ uint8_t reserved;
+ uint32_t exchange_addr;
+ union {
+ struct {
+ uint16_t reserved1;
+ uint16_t flags;
+ uint32_t residual;
+ uint16_t ox_id;
+ uint16_t scsi_status;
+ uint32_t relative_offset;
+ uint32_t reserved2;
+ uint32_t transfer_length;
+ uint32_t reserved3;
+ /* Data segment 0 address. */
+ uint32_t dseg_0_address[2];
+ /* Data segment 0 length. */
+ uint32_t dseg_0_length;
+ } status0;
+ struct {
+ uint16_t sense_length;
+ uint16_t flags;
+ uint32_t residual;
+ uint16_t ox_id;
+ uint16_t scsi_status;
+ uint16_t response_len;
+ uint16_t reserved;
+ uint8_t sense_data[24];
+ } status1;
+ } u;
+} __packed;
+
+/*
+ * ISP queue - CTIO type 7 from ISP 24xx to target driver
+ * returned entry structure.
+ */
+struct ctio7_from_24xx {
+ uint8_t entry_type; /* Entry type. */
+ uint8_t entry_count; /* Entry count. */
+ uint8_t sys_define; /* System defined. */
+ uint8_t entry_status; /* Entry Status. */
+ uint32_t handle; /* System defined handle */
+ uint16_t status;
+ uint16_t timeout;
+ uint16_t dseg_count; /* Data segment count. */
+ uint8_t vp_index;
+ uint8_t reserved1[5];
+ uint32_t exchange_address;
+ uint16_t reserved2;
+ uint16_t flags;
+ uint32_t residual;
+ uint16_t ox_id;
+ uint16_t reserved3;
+ uint32_t relative_offset;
+ uint8_t reserved4[24];
+} __packed;
+
+/* CTIO7 flags values */
+#define CTIO7_FLAGS_SEND_STATUS BIT_15
+#define CTIO7_FLAGS_TERMINATE BIT_14
+#define CTIO7_FLAGS_CONFORM_REQ BIT_13
+#define CTIO7_FLAGS_DONT_RET_CTIO BIT_8
+#define CTIO7_FLAGS_STATUS_MODE_0 0
+#define CTIO7_FLAGS_STATUS_MODE_1 BIT_6
+#define CTIO7_FLAGS_EXPLICIT_CONFORM BIT_5
+#define CTIO7_FLAGS_CONFIRM_SATISF BIT_4
+#define CTIO7_FLAGS_DSD_PTR BIT_2
+#define CTIO7_FLAGS_DATA_IN BIT_1
+#define CTIO7_FLAGS_DATA_OUT BIT_0
+
+#define ELS_PLOGI 0x3
+#define ELS_FLOGI 0x4
+#define ELS_LOGO 0x5
+#define ELS_PRLI 0x20
+#define ELS_PRLO 0x21
+#define ELS_TPRLO 0x24
+#define ELS_PDISC 0x50
+#define ELS_ADISC 0x52
+
+/*
+ * ISP queue - ABTS received/response entries structure definition for 24xx.
+ */
+#define ABTS_RECV_24XX 0x54 /* ABTS received (for 24xx) */
+#define ABTS_RESP_24XX 0x55 /* ABTS responce (for 24xx) */
+
+/*
+ * ISP queue - ABTS received IOCB entry structure definition for 24xx.
+ * The ABTS BLS received from the wire is sent to the
+ * target driver by the ISP 24xx.
+ * The IOCB is placed on the response queue.
+ */
+struct abts_recv_from_24xx {
+ uint8_t entry_type; /* Entry type. */
+ uint8_t entry_count; /* Entry count. */
+ uint8_t sys_define; /* System defined. */
+ uint8_t entry_status; /* Entry Status. */
+ uint8_t reserved_1[6];
+ uint16_t nport_handle;
+ uint8_t reserved_2[2];
+ uint8_t vp_index;
+ uint8_t reserved_3:4;
+ uint8_t sof_type:4;
+ uint32_t exchange_address;
+ struct fcp_hdr_le fcp_hdr_le;
+ uint8_t reserved_4[16];
+ uint32_t exchange_addr_to_abort;
+} __packed;
+
+#define ABTS_PARAM_ABORT_SEQ BIT_0
+
+struct ba_acc_le {
+ uint16_t reserved;
+ uint8_t seq_id_last;
+ uint8_t seq_id_valid;
+#define SEQ_ID_VALID 0x80
+#define SEQ_ID_INVALID 0x00
+ uint16_t rx_id;
+ uint16_t ox_id;
+ uint16_t high_seq_cnt;
+ uint16_t low_seq_cnt;
+} __packed;
+
+struct ba_rjt_le {
+ uint8_t vendor_uniq;
+ uint8_t reason_expl;
+ uint8_t reason_code;
+#define BA_RJT_REASON_CODE_INVALID_COMMAND 0x1
+#define BA_RJT_REASON_CODE_UNABLE_TO_PERFORM 0x9
+ uint8_t reserved;
+} __packed;
+
+/*
+ * ISP queue - ABTS Response IOCB entry structure definition for 24xx.
+ * The ABTS response to the ABTS received is sent by the
+ * target driver to the ISP 24xx.
+ * The IOCB is placed on the request queue.
+ */
+struct abts_resp_to_24xx {
+ uint8_t entry_type; /* Entry type. */
+ uint8_t entry_count; /* Entry count. */
+ uint8_t sys_define; /* System defined. */
+ uint8_t entry_status; /* Entry Status. */
+ uint32_t handle;
+ uint16_t reserved_1;
+ uint16_t nport_handle;
+ uint16_t control_flags;
+#define ABTS_CONTR_FLG_TERM_EXCHG BIT_0
+ uint8_t vp_index;
+ uint8_t reserved_3:4;
+ uint8_t sof_type:4;
+ uint32_t exchange_address;
+ struct fcp_hdr_le fcp_hdr_le;
+ union {
+ struct ba_acc_le ba_acct;
+ struct ba_rjt_le ba_rjt;
+ } __packed payload;
+ uint32_t reserved_4;
+ uint32_t exchange_addr_to_abort;
+} __packed;
+
+/*
+ * ISP queue - ABTS Response IOCB from ISP24xx Firmware entry structure.
+ * The ABTS response with completion status to the ABTS response
+ * (sent by the target driver to the ISP 24xx) is sent by the
+ * ISP24xx firmware to the target driver.
+ * The IOCB is placed on the response queue.
+ */
+struct abts_resp_from_24xx_fw {
+ uint8_t entry_type; /* Entry type. */
+ uint8_t entry_count; /* Entry count. */
+ uint8_t sys_define; /* System defined. */
+ uint8_t entry_status; /* Entry Status. */
+ uint32_t handle;
+ uint16_t compl_status;
+#define ABTS_RESP_COMPL_SUCCESS 0
+#define ABTS_RESP_COMPL_SUBCODE_ERROR 0x31
+ uint16_t nport_handle;
+ uint16_t reserved_1;
+ uint8_t reserved_2;
+ uint8_t reserved_3:4;
+ uint8_t sof_type:4;
+ uint32_t exchange_address;
+ struct fcp_hdr_le fcp_hdr_le;
+ uint8_t reserved_4[8];
+ uint32_t error_subcode1;
+#define ABTS_RESP_SUBCODE_ERR_ABORTED_EXCH_NOT_TERM 0x1E
+ uint32_t error_subcode2;
+ uint32_t exchange_addr_to_abort;
+} __packed;
+
+/********************************************************************\
+ * Type Definitions used by initiator & target halves
+\********************************************************************/
+
+struct qla_tgt_mgmt_cmd;
+struct qla_tgt_sess;
+
+/*
+ * This structure provides a template of function calls that the
+ * target driver (from within qla_target.c) can issue to the
+ * target module (tcm_qla2xxx).
+ */
+struct qla_tgt_func_tmpl {
+
+ int (*handle_cmd)(struct scsi_qla_host *, struct qla_tgt_cmd *,
+ unsigned char *, uint32_t, int, int, int);
+ int (*handle_data)(struct qla_tgt_cmd *);
+ int (*handle_tmr)(struct qla_tgt_mgmt_cmd *, uint32_t, uint8_t,
+ uint32_t);
+ void (*free_cmd)(struct qla_tgt_cmd *);
+ void (*free_mcmd)(struct qla_tgt_mgmt_cmd *);
+ void (*free_session)(struct qla_tgt_sess *);
+
+ int (*check_initiator_node_acl)(struct scsi_qla_host *, unsigned char *,
+ void *, uint8_t *, uint16_t);
+ struct qla_tgt_sess *(*find_sess_by_loop_id)(struct scsi_qla_host *,
+ const uint16_t);
+ struct qla_tgt_sess *(*find_sess_by_s_id)(struct scsi_qla_host *,
+ const uint8_t *);
+ void (*clear_nacl_from_fcport_map)(struct qla_tgt_sess *);
+ void (*put_sess)(struct qla_tgt_sess *);
+ void (*shutdown_sess)(struct qla_tgt_sess *);
+};
+
+int qla2x00_wait_for_hba_online(struct scsi_qla_host *);
+
+#include <target/target_core_base.h>
+
+#define QLA_TGT_TIMEOUT 10 /* in seconds */
+
+#define QLA_TGT_MAX_HW_PENDING_TIME 60 /* in seconds */
+
+/* Immediate notify status constants */
+#define IMM_NTFY_LIP_RESET 0x000E
+#define IMM_NTFY_LIP_LINK_REINIT 0x000F
+#define IMM_NTFY_IOCB_OVERFLOW 0x0016
+#define IMM_NTFY_ABORT_TASK 0x0020
+#define IMM_NTFY_PORT_LOGOUT 0x0029
+#define IMM_NTFY_PORT_CONFIG 0x002A
+#define IMM_NTFY_GLBL_TPRLO 0x002D
+#define IMM_NTFY_GLBL_LOGO 0x002E
+#define IMM_NTFY_RESOURCE 0x0034
+#define IMM_NTFY_MSG_RX 0x0036
+#define IMM_NTFY_SRR 0x0045
+#define IMM_NTFY_ELS 0x0046
+
+/* Immediate notify task flags */
+#define IMM_NTFY_TASK_MGMT_SHIFT 8
+
+#define QLA_TGT_CLEAR_ACA 0x40
+#define QLA_TGT_TARGET_RESET 0x20
+#define QLA_TGT_LUN_RESET 0x10
+#define QLA_TGT_CLEAR_TS 0x04
+#define QLA_TGT_ABORT_TS 0x02
+#define QLA_TGT_ABORT_ALL_SESS 0xFFFF
+#define QLA_TGT_ABORT_ALL 0xFFFE
+#define QLA_TGT_NEXUS_LOSS_SESS 0xFFFD
+#define QLA_TGT_NEXUS_LOSS 0xFFFC
+
+/* Notify Acknowledge flags */
+#define NOTIFY_ACK_RES_COUNT BIT_8
+#define NOTIFY_ACK_CLEAR_LIP_RESET BIT_5
+#define NOTIFY_ACK_TM_RESP_CODE_VALID BIT_4
+
+/* Command's states */
+#define QLA_TGT_STATE_NEW 0 /* New command + target processing */
+#define QLA_TGT_STATE_NEED_DATA 1 /* target needs data to continue */
+#define QLA_TGT_STATE_DATA_IN 2 /* Data arrived + target processing */
+#define QLA_TGT_STATE_PROCESSED 3 /* target done processing */
+#define QLA_TGT_STATE_ABORTED 4 /* Command aborted */
+
+/* Special handles */
+#define QLA_TGT_NULL_HANDLE 0
+#define QLA_TGT_SKIP_HANDLE (0xFFFFFFFF & ~CTIO_COMPLETION_HANDLE_MARK)
+
+/* ATIO task_codes field */
+#define ATIO_SIMPLE_QUEUE 0
+#define ATIO_HEAD_OF_QUEUE 1
+#define ATIO_ORDERED_QUEUE 2
+#define ATIO_ACA_QUEUE 4
+#define ATIO_UNTAGGED 5
+
+/* TM failed response codes, see FCP (9.4.11 FCP_RSP_INFO) */
+#define FC_TM_SUCCESS 0
+#define FC_TM_BAD_FCP_DATA 1
+#define FC_TM_BAD_CMD 2
+#define FC_TM_FCP_DATA_MISMATCH 3
+#define FC_TM_REJECT 4
+#define FC_TM_FAILED 5
+
+/*
+ * Error code of qlt_pre_xmit_response() meaning that cmd's exchange was
+ * terminated, so no more actions is needed and success should be returned
+ * to target.
+ */
+#define QLA_TGT_PRE_XMIT_RESP_CMD_ABORTED 0x1717
+
+#if (BITS_PER_LONG > 32) || defined(CONFIG_HIGHMEM64G)
+#define pci_dma_lo32(a) (a & 0xffffffff)
+#define pci_dma_hi32(a) ((((a) >> 16)>>16) & 0xffffffff)
+#else
+#define pci_dma_lo32(a) (a & 0xffffffff)
+#define pci_dma_hi32(a) 0
+#endif
+
+#define QLA_TGT_SENSE_VALID(sense) ((sense != NULL) && \
+ (((const uint8_t *)(sense))[0] & 0x70) == 0x70)
+
+struct qla_port_24xx_data {
+ uint8_t port_name[WWN_SIZE];
+ uint16_t loop_id;
+ uint16_t reserved;
+};
+
+struct qla_tgt {
+ struct scsi_qla_host *vha;
+ struct qla_hw_data *ha;
+
+ /*
+ * To sync between IRQ handlers and qlt_target_release(). Needed,
+ * because req_pkt() can drop/reaquire HW lock inside. Protected by
+ * HW lock.
+ */
+ int irq_cmd_count;
+
+ int datasegs_per_cmd, datasegs_per_cont, sg_tablesize;
+
+ /* Target's flags, serialized by pha->hardware_lock */
+ unsigned int tgt_enable_64bit_addr:1; /* 64-bits PCI addr enabled */
+ unsigned int link_reinit_iocb_pending:1;
+
+ /*
+ * Protected by tgt_mutex AND hardware_lock for writing and tgt_mutex
+ * OR hardware_lock for reading.
+ */
+ int tgt_stop; /* the target mode driver is being stopped */
+ int tgt_stopped; /* the target mode driver has been stopped */
+
+ /* Count of sessions refering qla_tgt. Protected by hardware_lock. */
+ int sess_count;
+
+ /* Protected by hardware_lock. Addition also protected by tgt_mutex. */
+ struct list_head sess_list;
+
+ /* Protected by hardware_lock */
+ struct list_head del_sess_list;
+ struct delayed_work sess_del_work;
+
+ spinlock_t sess_work_lock;
+ struct list_head sess_works_list;
+ struct work_struct sess_work;
+
+ struct imm_ntfy_from_isp link_reinit_iocb;
+ wait_queue_head_t waitQ;
+ int notify_ack_expected;
+ int abts_resp_expected;
+ int modify_lun_expected;
+
+ int ctio_srr_id;
+ int imm_srr_id;
+ spinlock_t srr_lock;
+ struct list_head srr_ctio_list;
+ struct list_head srr_imm_list;
+ struct work_struct srr_work;
+
+ atomic_t tgt_global_resets_count;
+
+ struct list_head tgt_list_entry;
+};
+
+/*
+ * Equivilant to IT Nexus (Initiator-Target)
+ */
+struct qla_tgt_sess {
+ uint16_t loop_id;
+ port_id_t s_id;
+
+ unsigned int conf_compl_supported:1;
+ unsigned int deleted:1;
+ unsigned int local:1;
+ unsigned int tearing_down:1;
+
+ struct se_session *se_sess;
+ struct scsi_qla_host *vha;
+ struct qla_tgt *tgt;
+
+ struct list_head sess_list_entry;
+ unsigned long expires;
+ struct list_head del_list_entry;
+
+ uint8_t port_name[WWN_SIZE];
+ struct work_struct free_work;
+};
+
+struct qla_tgt_cmd {
+ struct qla_tgt_sess *sess;
+ int state;
+ struct se_cmd se_cmd;
+ struct work_struct free_work;
+ struct work_struct work;
+ /* Sense buffer that will be mapped into outgoing status */
+ unsigned char sense_buffer[TRANSPORT_SENSE_BUFFER];
+
+ /* to save extra sess dereferences */
+ unsigned int conf_compl_supported:1;
+ unsigned int sg_mapped:1;
+ unsigned int free_sg:1;
+ unsigned int aborted:1; /* Needed in case of SRR */
+ unsigned int write_data_transferred:1;
+
+ struct scatterlist *sg; /* cmd data buffer SG vector */
+ int sg_cnt; /* SG segments count */
+ int bufflen; /* cmd buffer length */
+ int offset;
+ uint32_t tag;
+ uint32_t unpacked_lun;
+ enum dma_data_direction dma_data_direction;
+
+ uint16_t loop_id; /* to save extra sess dereferences */
+ struct qla_tgt *tgt; /* to save extra sess dereferences */
+ struct scsi_qla_host *vha;
+ struct list_head cmd_list;
+
+ struct atio_from_isp atio;
+};
+
+struct qla_tgt_sess_work_param {
+ struct list_head sess_works_list_entry;
+
+#define QLA_TGT_SESS_WORK_ABORT 1
+#define QLA_TGT_SESS_WORK_TM 2
+ int type;
+
+ union {
+ struct abts_recv_from_24xx abts;
+ struct imm_ntfy_from_isp tm_iocb;
+ struct atio_from_isp tm_iocb2;
+ };
+};
+
+struct qla_tgt_mgmt_cmd {
+ uint8_t tmr_func;
+ uint8_t fc_tm_rsp;
+ struct qla_tgt_sess *sess;
+ struct se_cmd se_cmd;
+ struct work_struct free_work;
+ unsigned int flags;
+#define QLA24XX_MGMT_SEND_NACK 1
+ union {
+ struct atio_from_isp atio;
+ struct imm_ntfy_from_isp imm_ntfy;
+ struct abts_recv_from_24xx abts;
+ } __packed orig_iocb;
+};
+
+struct qla_tgt_prm {
+ struct qla_tgt_cmd *cmd;
+ struct qla_tgt *tgt;
+ void *pkt;
+ struct scatterlist *sg; /* cmd data buffer SG vector */
+ int seg_cnt;
+ int req_cnt;
+ uint16_t rq_result;
+ uint16_t scsi_status;
+ unsigned char *sense_buffer;
+ int sense_buffer_len;
+ int residual;
+ int add_status_pkt;
+};
+
+struct qla_tgt_srr_imm {
+ struct list_head srr_list_entry;
+ int srr_id;
+ struct imm_ntfy_from_isp imm_ntfy;
+};
+
+struct qla_tgt_srr_ctio {
+ struct list_head srr_list_entry;
+ int srr_id;
+ struct qla_tgt_cmd *cmd;
+};
+
+#define QLA_TGT_XMIT_DATA 1
+#define QLA_TGT_XMIT_STATUS 2
+#define QLA_TGT_XMIT_ALL (QLA_TGT_XMIT_STATUS|QLA_TGT_XMIT_DATA)
+
+#include <linux/version.h>
+
+extern struct qla_tgt_data qla_target;
+/*
+ * Internal function prototypes
+ */
+void qlt_disable_vha(struct scsi_qla_host *);
+
+/*
+ * Function prototypes for qla_target.c logic used by qla2xxx LLD code.
+ */
+extern int qlt_add_target(struct qla_hw_data *, struct scsi_qla_host *);
+extern int qlt_remove_target(struct qla_hw_data *, struct scsi_qla_host *);
+extern int qlt_lport_register(struct qla_tgt_func_tmpl *, u64,
+ int (*callback)(struct scsi_qla_host *), void *);
+extern void qlt_lport_deregister(struct scsi_qla_host *);
+extern void qlt_unreg_sess(struct qla_tgt_sess *);
+extern void qlt_fc_port_added(struct scsi_qla_host *, fc_port_t *);
+extern void qlt_fc_port_deleted(struct scsi_qla_host *, fc_port_t *);
+extern void qlt_set_mode(struct scsi_qla_host *ha);
+extern void qlt_clear_mode(struct scsi_qla_host *ha);
+extern int __init qlt_init(void);
+extern void qlt_exit(void);
+extern void qlt_update_vp_map(struct scsi_qla_host *, int);
+
+/*
+ * This macro is used during early initializations when host->active_mode
+ * is not set. Right now, ha value is ignored.
+ */
+#define QLA_TGT_MODE_ENABLED() (ql2x_ini_mode != QLA2XXX_INI_MODE_ENABLED)
+
+static inline bool qla_tgt_mode_enabled(struct scsi_qla_host *ha)
+{
+ return ha->host->active_mode & MODE_TARGET;
+}
+
+static inline bool qla_ini_mode_enabled(struct scsi_qla_host *ha)
+{
+ return ha->host->active_mode & MODE_INITIATOR;
+}
+
+static inline void qla_reverse_ini_mode(struct scsi_qla_host *ha)
+{
+ if (ha->host->active_mode & MODE_INITIATOR)
+ ha->host->active_mode &= ~MODE_INITIATOR;
+ else
+ ha->host->active_mode |= MODE_INITIATOR;
+}
+
+/*
+ * Exported symbols from qla_target.c LLD logic used by qla2xxx code..
+ */
+extern void qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *,
+ struct atio_from_isp *);
+extern void qlt_response_pkt_all_vps(struct scsi_qla_host *, response_t *);
+extern int qlt_rdy_to_xfer(struct qla_tgt_cmd *);
+extern int qlt_xmit_response(struct qla_tgt_cmd *, int, uint8_t);
+extern void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *);
+extern void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *);
+extern void qlt_free_cmd(struct qla_tgt_cmd *cmd);
+extern void qlt_ctio_completion(struct scsi_qla_host *, uint32_t);
+extern void qlt_async_event(uint16_t, struct scsi_qla_host *, uint16_t *);
+extern void qlt_enable_vha(struct scsi_qla_host *);
+extern void qlt_vport_create(struct scsi_qla_host *, struct qla_hw_data *);
+extern void qlt_rff_id(struct scsi_qla_host *, struct ct_sns_req *);
+extern void qlt_init_atio_q_entries(struct scsi_qla_host *);
+extern void qlt_24xx_process_atio_queue(struct scsi_qla_host *);
+extern void qlt_24xx_config_rings(struct scsi_qla_host *,
+ device_reg_t __iomem *);
+extern void qlt_24xx_config_nvram_stage1(struct scsi_qla_host *,
+ struct nvram_24xx *);
+extern void qlt_24xx_config_nvram_stage2(struct scsi_qla_host *,
+ struct init_cb_24xx *);
+extern int qlt_24xx_process_response_error(struct scsi_qla_host *,
+ struct sts_entry_24xx *);
+extern void qlt_modify_vp_config(struct scsi_qla_host *,
+ struct vp_config_entry_24xx *);
+extern void qlt_probe_one_stage1(struct scsi_qla_host *, struct qla_hw_data *);
+extern int qlt_mem_alloc(struct qla_hw_data *);
+extern void qlt_mem_free(struct qla_hw_data *);
+extern void qlt_stop_phase1(struct qla_tgt *);
+extern void qlt_stop_phase2(struct qla_tgt *);
+
+#endif /* __QLA_TARGET_H */
--- /dev/null
+/*******************************************************************************
+ * This file contains tcm implementation using v4 configfs fabric infrastructure
+ * for QLogic target mode HBAs
+ *
+ * ?? Copyright 2010-2011 RisingTide Systems LLC.
+ *
+ * Licensed to the Linux Foundation under the General Public License (GPL)
+ * version 2.
+ *
+ * Author: Nicholas A. Bellinger <nab@risingtidesystems.com>
+ *
+ * tcm_qla2xxx_parse_wwn() and tcm_qla2xxx_format_wwn() contains code from
+ * the TCM_FC / Open-FCoE.org fabric module.
+ *
+ * Copyright (c) 2010 Cisco Systems, Inc
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ ****************************************************************************/
+
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <generated/utsrelease.h>
+#include <linux/utsname.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/kthread.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/configfs.h>
+#include <linux/ctype.h>
+#include <linux/string.h>
+#include <linux/ctype.h>
+#include <asm/unaligned.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_cmnd.h>
+#include <target/target_core_base.h>
+#include <target/target_core_fabric.h>
+#include <target/target_core_fabric_configfs.h>
+#include <target/target_core_configfs.h>
+#include <target/configfs_macros.h>
+
+#include "qla_def.h"
+#include "qla_target.h"
+#include "tcm_qla2xxx.h"
+
+struct workqueue_struct *tcm_qla2xxx_free_wq;
+struct workqueue_struct *tcm_qla2xxx_cmd_wq;
+
+static int tcm_qla2xxx_check_true(struct se_portal_group *se_tpg)
+{
+ return 1;
+}
+
+static int tcm_qla2xxx_check_false(struct se_portal_group *se_tpg)
+{
+ return 0;
+}
+
+/*
+ * Parse WWN.
+ * If strict, we require lower-case hex and colon separators to be sure
+ * the name is the same as what would be generated by ft_format_wwn()
+ * so the name and wwn are mapped one-to-one.
+ */
+static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict)
+{
+ const char *cp;
+ char c;
+ u32 nibble;
+ u32 byte = 0;
+ u32 pos = 0;
+ u32 err;
+
+ *wwn = 0;
+ for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) {
+ c = *cp;
+ if (c == '\n' && cp[1] == '\0')
+ continue;
+ if (strict && pos++ == 2 && byte++ < 7) {
+ pos = 0;
+ if (c == ':')
+ continue;
+ err = 1;
+ goto fail;
+ }
+ if (c == '\0') {
+ err = 2;
+ if (strict && byte != 8)
+ goto fail;
+ return cp - name;
+ }
+ err = 3;
+ if (isdigit(c))
+ nibble = c - '0';
+ else if (isxdigit(c) && (islower(c) || !strict))
+ nibble = tolower(c) - 'a' + 10;
+ else
+ goto fail;
+ *wwn = (*wwn << 4) | nibble;
+ }
+ err = 4;
+fail:
+ pr_debug("err %u len %zu pos %u byte %u\n",
+ err, cp - name, pos, byte);
+ return -1;
+}
+
+static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn)
+{
+ u8 b[8];
+
+ put_unaligned_be64(wwn, b);
+ return snprintf(buf, len,
+ "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
+ b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]);
+}
+
+static char *tcm_qla2xxx_get_fabric_name(void)
+{
+ return "qla2xxx";
+}
+
+/*
+ * From drivers/scsi/scsi_transport_fc.c:fc_parse_wwn
+ */
+static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm)
+{
+ unsigned int i, j, value;
+ u8 wwn[8];
+
+ memset(wwn, 0, sizeof(wwn));
+
+ /* Validate and store the new name */
+ for (i = 0, j = 0; i < 16; i++) {
+ value = hex_to_bin(*ns++);
+ if (value >= 0)
+ j = (j << 4) | value;
+ else
+ return -EINVAL;
+
+ if (i % 2) {
+ wwn[i/2] = j & 0xff;
+ j = 0;
+ }
+ }
+
+ *nm = wwn_to_u64(wwn);
+ return 0;
+}
+
+/*
+ * This parsing logic follows drivers/scsi/scsi_transport_fc.c:
+ * store_fc_host_vport_create()
+ */
+static int tcm_qla2xxx_npiv_parse_wwn(
+ const char *name,
+ size_t count,
+ u64 *wwpn,
+ u64 *wwnn)
+{
+ unsigned int cnt = count;
+ int rc;
+
+ *wwpn = 0;
+ *wwnn = 0;
+
+ /* count may include a LF at end of string */
+ if (name[cnt-1] == '\n')
+ cnt--;
+
+ /* validate we have enough characters for WWPN */
+ if ((cnt != (16+1+16)) || (name[16] != ':'))
+ return -EINVAL;
+
+ rc = tcm_qla2xxx_npiv_extract_wwn(&name[0], wwpn);
+ if (rc != 0)
+ return rc;
+
+ rc = tcm_qla2xxx_npiv_extract_wwn(&name[17], wwnn);
+ if (rc != 0)
+ return rc;
+
+ return 0;
+}
+
+static ssize_t tcm_qla2xxx_npiv_format_wwn(char *buf, size_t len,
+ u64 wwpn, u64 wwnn)
+{
+ u8 b[8], b2[8];
+
+ put_unaligned_be64(wwpn, b);
+ put_unaligned_be64(wwnn, b2);
+ return snprintf(buf, len,
+ "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x,"
+ "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
+ b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7],
+ b2[0], b2[1], b2[2], b2[3], b2[4], b2[5], b2[6], b2[7]);
+}
+
+static char *tcm_qla2xxx_npiv_get_fabric_name(void)
+{
+ return "qla2xxx_npiv";
+}
+
+static u8 tcm_qla2xxx_get_fabric_proto_ident(struct se_portal_group *se_tpg)
+{
+ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
+ struct tcm_qla2xxx_tpg, se_tpg);
+ struct tcm_qla2xxx_lport *lport = tpg->lport;
+ u8 proto_id;
+
+ switch (lport->lport_proto_id) {
+ case SCSI_PROTOCOL_FCP:
+ default:
+ proto_id = fc_get_fabric_proto_ident(se_tpg);
+ break;
+ }
+
+ return proto_id;
+}
+
+static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg)
+{
+ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
+ struct tcm_qla2xxx_tpg, se_tpg);
+ struct tcm_qla2xxx_lport *lport = tpg->lport;
+
+ return &lport->lport_name[0];
+}
+
+static char *tcm_qla2xxx_npiv_get_fabric_wwn(struct se_portal_group *se_tpg)
+{
+ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
+ struct tcm_qla2xxx_tpg, se_tpg);
+ struct tcm_qla2xxx_lport *lport = tpg->lport;
+
+ return &lport->lport_npiv_name[0];
+}
+
+static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg)
+{
+ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
+ struct tcm_qla2xxx_tpg, se_tpg);
+ return tpg->lport_tpgt;
+}
+
+static u32 tcm_qla2xxx_get_default_depth(struct se_portal_group *se_tpg)
+{
+ return 1;
+}
+
+static u32 tcm_qla2xxx_get_pr_transport_id(
+ struct se_portal_group *se_tpg,
+ struct se_node_acl *se_nacl,
+ struct t10_pr_registration *pr_reg,
+ int *format_code,
+ unsigned char *buf)
+{
+ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
+ struct tcm_qla2xxx_tpg, se_tpg);
+ struct tcm_qla2xxx_lport *lport = tpg->lport;
+ int ret = 0;
+
+ switch (lport->lport_proto_id) {
+ case SCSI_PROTOCOL_FCP:
+ default:
+ ret = fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
+ format_code, buf);
+ break;
+ }
+
+ return ret;
+}
+
+static u32 tcm_qla2xxx_get_pr_transport_id_len(
+ struct se_portal_group *se_tpg,
+ struct se_node_acl *se_nacl,
+ struct t10_pr_registration *pr_reg,
+ int *format_code)
+{
+ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
+ struct tcm_qla2xxx_tpg, se_tpg);
+ struct tcm_qla2xxx_lport *lport = tpg->lport;
+ int ret = 0;
+
+ switch (lport->lport_proto_id) {
+ case SCSI_PROTOCOL_FCP:
+ default:
+ ret = fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
+ format_code);
+ break;
+ }
+
+ return ret;
+}
+
+static char *tcm_qla2xxx_parse_pr_out_transport_id(
+ struct se_portal_group *se_tpg,
+ const char *buf,
+ u32 *out_tid_len,
+ char **port_nexus_ptr)
+{
+ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
+ struct tcm_qla2xxx_tpg, se_tpg);
+ struct tcm_qla2xxx_lport *lport = tpg->lport;
+ char *tid = NULL;
+
+ switch (lport->lport_proto_id) {
+ case SCSI_PROTOCOL_FCP:
+ default:
+ tid = fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
+ port_nexus_ptr);
+ break;
+ }
+
+ return tid;
+}
+
+static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg)
+{
+ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
+ struct tcm_qla2xxx_tpg, se_tpg);
+
+ return QLA_TPG_ATTRIB(tpg)->generate_node_acls;
+}
+
+static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg)
+{
+ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
+ struct tcm_qla2xxx_tpg, se_tpg);
+
+ return QLA_TPG_ATTRIB(tpg)->cache_dynamic_acls;
+}
+
+static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg)
+{
+ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
+ struct tcm_qla2xxx_tpg, se_tpg);
+
+ return QLA_TPG_ATTRIB(tpg)->demo_mode_write_protect;
+}
+
+static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg)
+{
+ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
+ struct tcm_qla2xxx_tpg, se_tpg);
+
+ return QLA_TPG_ATTRIB(tpg)->prod_mode_write_protect;
+}
+
+static struct se_node_acl *tcm_qla2xxx_alloc_fabric_acl(
+ struct se_portal_group *se_tpg)
+{
+ struct tcm_qla2xxx_nacl *nacl;
+
+ nacl = kzalloc(sizeof(struct tcm_qla2xxx_nacl), GFP_KERNEL);
+ if (!nacl) {
+ pr_err("Unable to alocate struct tcm_qla2xxx_nacl\n");
+ return NULL;
+ }
+
+ return &nacl->se_node_acl;
+}
+
+static void tcm_qla2xxx_release_fabric_acl(
+ struct se_portal_group *se_tpg,
+ struct se_node_acl *se_nacl)
+{
+ struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
+ struct tcm_qla2xxx_nacl, se_node_acl);
+ kfree(nacl);
+}
+
+static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg)
+{
+ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
+ struct tcm_qla2xxx_tpg, se_tpg);
+
+ return tpg->lport_tpgt;
+}
+
+static void tcm_qla2xxx_complete_mcmd(struct work_struct *work)
+{
+ struct qla_tgt_mgmt_cmd *mcmd = container_of(work,
+ struct qla_tgt_mgmt_cmd, free_work);
+
+ transport_generic_free_cmd(&mcmd->se_cmd, 0);
+}
+
+/*
+ * Called from qla_target_template->free_mcmd(), and will call
+ * tcm_qla2xxx_release_cmd() via normal struct target_core_fabric_ops
+ * release callback. qla_hw_data->hardware_lock is expected to be held
+ */
+static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd)
+{
+ INIT_WORK(&mcmd->free_work, tcm_qla2xxx_complete_mcmd);
+ queue_work(tcm_qla2xxx_free_wq, &mcmd->free_work);
+}
+
+static void tcm_qla2xxx_complete_free(struct work_struct *work)
+{
+ struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
+
+ transport_generic_free_cmd(&cmd->se_cmd, 0);
+}
+
+/*
+ * Called from qla_target_template->free_cmd(), and will call
+ * tcm_qla2xxx_release_cmd via normal struct target_core_fabric_ops
+ * release callback. qla_hw_data->hardware_lock is expected to be held
+ */
+static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd)
+{
+ INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free);
+ queue_work(tcm_qla2xxx_free_wq, &cmd->work);
+}
+
+/*
+ * Called from struct target_core_fabric_ops->check_stop_free() context
+ */
+static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd)
+{
+ return target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+}
+
+/* tcm_qla2xxx_release_cmd - Callback from TCM Core to release underlying
+ * fabric descriptor @se_cmd command to release
+ */
+static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd)
+{
+ struct qla_tgt_cmd *cmd;
+
+ if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) {
+ struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd,
+ struct qla_tgt_mgmt_cmd, se_cmd);
+ qlt_free_mcmd(mcmd);
+ return;
+ }
+
+ cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
+ qlt_free_cmd(cmd);
+}
+
+static int tcm_qla2xxx_shutdown_session(struct se_session *se_sess)
+{
+ struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr;
+ struct scsi_qla_host *vha;
+ unsigned long flags;
+
+ BUG_ON(!sess);
+ vha = sess->vha;
+
+ spin_lock_irqsave(&vha->hw->hardware_lock, flags);
+ sess->tearing_down = 1;
+ target_splice_sess_cmd_list(se_sess);
+ spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
+
+ return 1;
+}
+
+static void tcm_qla2xxx_close_session(struct se_session *se_sess)
+{
+ struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr;
+ struct scsi_qla_host *vha;
+ unsigned long flags;
+
+ BUG_ON(!sess);
+ vha = sess->vha;
+
+ spin_lock_irqsave(&vha->hw->hardware_lock, flags);
+ qlt_unreg_sess(sess);
+ spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
+}
+
+static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess)
+{
+ return 0;
+}
+
+/*
+ * The LIO target core uses DMA_TO_DEVICE to mean that data is going
+ * to the target (eg handling a WRITE) and DMA_FROM_DEVICE to mean
+ * that data is coming from the target (eg handling a READ). However,
+ * this is just the opposite of what we have to tell the DMA mapping
+ * layer -- eg when handling a READ, the HBA will have to DMA the data
+ * out of memory so it can send it to the initiator, which means we
+ * need to use DMA_TO_DEVICE when we map the data.
+ */
+static enum dma_data_direction tcm_qla2xxx_mapping_dir(struct se_cmd *se_cmd)
+{
+ if (se_cmd->se_cmd_flags & SCF_BIDI)
+ return DMA_BIDIRECTIONAL;
+
+ switch (se_cmd->data_direction) {
+ case DMA_TO_DEVICE:
+ return DMA_FROM_DEVICE;
+ case DMA_FROM_DEVICE:
+ return DMA_TO_DEVICE;
+ case DMA_NONE:
+ default:
+ return DMA_NONE;
+ }
+}
+
+static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd)
+{
+ struct qla_tgt_cmd *cmd = container_of(se_cmd,
+ struct qla_tgt_cmd, se_cmd);
+
+ cmd->bufflen = se_cmd->data_length;
+ cmd->dma_data_direction = tcm_qla2xxx_mapping_dir(se_cmd);
+
+ cmd->sg_cnt = se_cmd->t_data_nents;
+ cmd->sg = se_cmd->t_data_sg;
+
+ /*
+ * qla_target.c:qlt_rdy_to_xfer() will call pci_map_sg() to setup
+ * the SGL mappings into PCIe memory for incoming FCP WRITE data.
+ */
+ return qlt_rdy_to_xfer(cmd);
+}
+
+static int tcm_qla2xxx_write_pending_status(struct se_cmd *se_cmd)
+{
+ unsigned long flags;
+ /*
+ * Check for WRITE_PENDING status to determine if we need to wait for
+ * CTIO aborts to be posted via hardware in tcm_qla2xxx_handle_data().
+ */
+ spin_lock_irqsave(&se_cmd->t_state_lock, flags);
+ if (se_cmd->t_state == TRANSPORT_WRITE_PENDING ||
+ se_cmd->t_state == TRANSPORT_COMPLETE_QF_WP) {
+ spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
+ wait_for_completion_timeout(&se_cmd->t_transport_stop_comp,
+ 3000);
+ return 0;
+ }
+ spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
+
+ return 0;
+}
+
+static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl)
+{
+ return;
+}
+
+static u32 tcm_qla2xxx_get_task_tag(struct se_cmd *se_cmd)
+{
+ struct qla_tgt_cmd *cmd = container_of(se_cmd,
+ struct qla_tgt_cmd, se_cmd);
+
+ return cmd->tag;
+}
+
+static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd)
+{
+ return 0;
+}
+
+/*
+ * Called from process context in qla_target.c:qlt_do_work() code
+ */
+static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd,
+ unsigned char *cdb, uint32_t data_length, int fcp_task_attr,
+ int data_dir, int bidi)
+{
+ struct se_cmd *se_cmd = &cmd->se_cmd;
+ struct se_session *se_sess;
+ struct qla_tgt_sess *sess;
+ int flags = TARGET_SCF_ACK_KREF;
+
+ if (bidi)
+ flags |= TARGET_SCF_BIDI_OP;
+
+ sess = cmd->sess;
+ if (!sess) {
+ pr_err("Unable to locate struct qla_tgt_sess from qla_tgt_cmd\n");
+ return -EINVAL;
+ }
+
+ se_sess = sess->se_sess;
+ if (!se_sess) {
+ pr_err("Unable to locate active struct se_session\n");
+ return -EINVAL;
+ }
+
+ target_submit_cmd(se_cmd, se_sess, cdb, &cmd->sense_buffer[0],
+ cmd->unpacked_lun, data_length, fcp_task_attr,
+ data_dir, flags);
+ return 0;
+}
+
+static void tcm_qla2xxx_do_rsp(struct work_struct *work)
+{
+ struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
+ /*
+ * Dispatch ->queue_status from workqueue process context
+ */
+ transport_generic_request_failure(&cmd->se_cmd);
+}
+
+/*
+ * Called from qla_target.c:qlt_do_ctio_completion()
+ */
+static int tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd)
+{
+ struct se_cmd *se_cmd = &cmd->se_cmd;
+ unsigned long flags;
+ /*
+ * Ensure that the complete FCP WRITE payload has been received.
+ * Otherwise return an exception via CHECK_CONDITION status.
+ */
+ if (!cmd->write_data_transferred) {
+ /*
+ * Check if se_cmd has already been aborted via LUN_RESET, and
+ * waiting upon completion in tcm_qla2xxx_write_pending_status()
+ */
+ spin_lock_irqsave(&se_cmd->t_state_lock, flags);
+ if (se_cmd->transport_state & CMD_T_ABORTED) {
+ spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
+ complete(&se_cmd->t_transport_stop_comp);
+ return 0;
+ }
+ spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
+
+ se_cmd->scsi_sense_reason = TCM_CHECK_CONDITION_ABORT_CMD;
+ INIT_WORK(&cmd->work, tcm_qla2xxx_do_rsp);
+ queue_work(tcm_qla2xxx_free_wq, &cmd->work);
+ return 0;
+ }
+ /*
+ * We now tell TCM to queue this WRITE CDB with TRANSPORT_PROCESS_WRITE
+ * status to the backstore processing thread.
+ */
+ return transport_generic_handle_data(&cmd->se_cmd);
+}
+
+/*
+ * Called from qla_target.c:qlt_issue_task_mgmt()
+ */
+int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, uint32_t lun,
+ uint8_t tmr_func, uint32_t tag)
+{
+ struct qla_tgt_sess *sess = mcmd->sess;
+ struct se_cmd *se_cmd = &mcmd->se_cmd;
+
+ return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd,
+ tmr_func, GFP_ATOMIC, tag, TARGET_SCF_ACK_KREF);
+}
+
+static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd)
+{
+ struct qla_tgt_cmd *cmd = container_of(se_cmd,
+ struct qla_tgt_cmd, se_cmd);
+
+ cmd->bufflen = se_cmd->data_length;
+ cmd->dma_data_direction = tcm_qla2xxx_mapping_dir(se_cmd);
+ cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED);
+
+ cmd->sg_cnt = se_cmd->t_data_nents;
+ cmd->sg = se_cmd->t_data_sg;
+ cmd->offset = 0;
+
+ /*
+ * Now queue completed DATA_IN the qla2xxx LLD and response ring
+ */
+ return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS,
+ se_cmd->scsi_status);
+}
+
+static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd)
+{
+ struct qla_tgt_cmd *cmd = container_of(se_cmd,
+ struct qla_tgt_cmd, se_cmd);
+ int xmit_type = QLA_TGT_XMIT_STATUS;
+
+ cmd->bufflen = se_cmd->data_length;
+ cmd->sg = NULL;
+ cmd->sg_cnt = 0;
+ cmd->offset = 0;
+ cmd->dma_data_direction = tcm_qla2xxx_mapping_dir(se_cmd);
+ cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED);
+
+ if (se_cmd->data_direction == DMA_FROM_DEVICE) {
+ /*
+ * For FCP_READ with CHECK_CONDITION status, clear cmd->bufflen
+ * for qla_tgt_xmit_response LLD code
+ */
+ se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT;
+ se_cmd->residual_count = se_cmd->data_length;
+
+ cmd->bufflen = 0;
+ }
+ /*
+ * Now queue status response to qla2xxx LLD code and response ring
+ */
+ return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status);
+}
+
+static int tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd)
+{
+ struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
+ struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd,
+ struct qla_tgt_mgmt_cmd, se_cmd);
+
+ pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n",
+ mcmd, se_tmr->function, se_tmr->response);
+ /*
+ * Do translation between TCM TM response codes and
+ * QLA2xxx FC TM response codes.
+ */
+ switch (se_tmr->response) {
+ case TMR_FUNCTION_COMPLETE:
+ mcmd->fc_tm_rsp = FC_TM_SUCCESS;
+ break;
+ case TMR_TASK_DOES_NOT_EXIST:
+ mcmd->fc_tm_rsp = FC_TM_BAD_CMD;
+ break;
+ case TMR_FUNCTION_REJECTED:
+ mcmd->fc_tm_rsp = FC_TM_REJECT;
+ break;
+ case TMR_LUN_DOES_NOT_EXIST:
+ default:
+ mcmd->fc_tm_rsp = FC_TM_FAILED;
+ break;
+ }
+ /*
+ * Queue the TM response to QLA2xxx LLD to build a
+ * CTIO response packet.
+ */
+ qlt_xmit_tm_rsp(mcmd);
+
+ return 0;
+}
+
+static u16 tcm_qla2xxx_get_fabric_sense_len(void)
+{
+ return 0;
+}
+
+static u16 tcm_qla2xxx_set_fabric_sense_len(struct se_cmd *se_cmd,
+ u32 sense_length)
+{
+ return 0;
+}
+
+/* Local pointer to allocated TCM configfs fabric module */
+struct target_fabric_configfs *tcm_qla2xxx_fabric_configfs;
+struct target_fabric_configfs *tcm_qla2xxx_npiv_fabric_configfs;
+
+static int tcm_qla2xxx_setup_nacl_from_rport(
+ struct se_portal_group *se_tpg,
+ struct se_node_acl *se_nacl,
+ struct tcm_qla2xxx_lport *lport,
+ struct tcm_qla2xxx_nacl *nacl,
+ u64 rport_wwnn)
+{
+ struct scsi_qla_host *vha = lport->qla_vha;
+ struct Scsi_Host *sh = vha->host;
+ struct fc_host_attrs *fc_host = shost_to_fc_host(sh);
+ struct fc_rport *rport;
+ unsigned long flags;
+ void *node;
+ int rc;
+
+ /*
+ * Scan the existing rports, and create a session for the
+ * explict NodeACL is an matching rport->node_name already
+ * exists.
+ */
+ spin_lock_irqsave(sh->host_lock, flags);
+ list_for_each_entry(rport, &fc_host->rports, peers) {
+ if (rport_wwnn != rport->node_name)
+ continue;
+
+ pr_debug("Located existing rport_wwpn and rport->node_name: 0x%016LX, port_id: 0x%04x\n",
+ rport->node_name, rport->port_id);
+ nacl->nport_id = rport->port_id;
+
+ spin_unlock_irqrestore(sh->host_lock, flags);
+
+ spin_lock_irqsave(&vha->hw->hardware_lock, flags);
+ node = btree_lookup32(&lport->lport_fcport_map, rport->port_id);
+ if (node) {
+ rc = btree_update32(&lport->lport_fcport_map,
+ rport->port_id, se_nacl);
+ } else {
+ rc = btree_insert32(&lport->lport_fcport_map,
+ rport->port_id, se_nacl,
+ GFP_ATOMIC);
+ }
+ spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
+
+ if (rc) {
+ pr_err("Unable to insert se_nacl into fcport_map");
+ WARN_ON(rc > 0);
+ return rc;
+ }
+
+ pr_debug("Inserted into fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%08x\n",
+ se_nacl, rport_wwnn, nacl->nport_id);
+
+ return 1;
+ }
+ spin_unlock_irqrestore(sh->host_lock, flags);
+
+ return 0;
+}
+
+/*
+ * Expected to be called with struct qla_hw_data->hardware_lock held
+ */
+static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct qla_tgt_sess *sess)
+{
+ struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
+ struct se_portal_group *se_tpg = se_nacl->se_tpg;
+ struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
+ struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
+ struct tcm_qla2xxx_lport, lport_wwn);
+ struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
+ struct tcm_qla2xxx_nacl, se_node_acl);
+ void *node;
+
+ pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id);
+
+ node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id);
+ WARN_ON(node && (node != se_nacl));
+
+ pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n",
+ se_nacl, nacl->nport_wwnn, nacl->nport_id);
+}
+
+static void tcm_qla2xxx_put_sess(struct qla_tgt_sess *sess)
+{
+ target_put_session(sess->se_sess);
+}
+
+static void tcm_qla2xxx_shutdown_sess(struct qla_tgt_sess *sess)
+{
+ tcm_qla2xxx_shutdown_session(sess->se_sess);
+}
+
+static struct se_node_acl *tcm_qla2xxx_make_nodeacl(
+ struct se_portal_group *se_tpg,
+ struct config_group *group,
+ const char *name)
+{
+ struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
+ struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
+ struct tcm_qla2xxx_lport, lport_wwn);
+ struct se_node_acl *se_nacl, *se_nacl_new;
+ struct tcm_qla2xxx_nacl *nacl;
+ u64 wwnn;
+ u32 qla2xxx_nexus_depth;
+ int rc;
+
+ if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0)
+ return ERR_PTR(-EINVAL);
+
+ se_nacl_new = tcm_qla2xxx_alloc_fabric_acl(se_tpg);
+ if (!se_nacl_new)
+ return ERR_PTR(-ENOMEM);
+/* #warning FIXME: Hardcoded qla2xxx_nexus depth in tcm_qla2xxx_make_nodeacl */
+ qla2xxx_nexus_depth = 1;
+
+ /*
+ * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
+ * when converting a NodeACL from demo mode -> explict
+ */
+ se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
+ name, qla2xxx_nexus_depth);
+ if (IS_ERR(se_nacl)) {
+ tcm_qla2xxx_release_fabric_acl(se_tpg, se_nacl_new);
+ return se_nacl;
+ }
+ /*
+ * Locate our struct tcm_qla2xxx_nacl and set the FC Nport WWPN
+ */
+ nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
+ nacl->nport_wwnn = wwnn;
+ tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn);
+ /*
+ * Setup a se_nacl handle based on an a matching struct fc_rport setup
+ * via drivers/scsi/qla2xxx/qla_init.c:qla2x00_reg_remote_port()
+ */
+ rc = tcm_qla2xxx_setup_nacl_from_rport(se_tpg, se_nacl, lport,
+ nacl, wwnn);
+ if (rc < 0) {
+ tcm_qla2xxx_release_fabric_acl(se_tpg, se_nacl_new);
+ return ERR_PTR(rc);
+ }
+
+ return se_nacl;
+}
+
+static void tcm_qla2xxx_drop_nodeacl(struct se_node_acl *se_acl)
+{
+ struct se_portal_group *se_tpg = se_acl->se_tpg;
+ struct tcm_qla2xxx_nacl *nacl = container_of(se_acl,
+ struct tcm_qla2xxx_nacl, se_node_acl);
+
+ core_tpg_del_initiator_node_acl(se_tpg, se_acl, 1);
+ kfree(nacl);
+}
+
+/* Start items for tcm_qla2xxx_tpg_attrib_cit */
+
+#define DEF_QLA_TPG_ATTRIB(name) \
+ \
+static ssize_t tcm_qla2xxx_tpg_attrib_show_##name( \
+ struct se_portal_group *se_tpg, \
+ char *page) \
+{ \
+ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
+ struct tcm_qla2xxx_tpg, se_tpg); \
+ \
+ return sprintf(page, "%u\n", QLA_TPG_ATTRIB(tpg)->name); \
+} \
+ \
+static ssize_t tcm_qla2xxx_tpg_attrib_store_##name( \
+ struct se_portal_group *se_tpg, \
+ const char *page, \
+ size_t count) \
+{ \
+ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
+ struct tcm_qla2xxx_tpg, se_tpg); \
+ unsigned long val; \
+ int ret; \
+ \
+ ret = kstrtoul(page, 0, &val); \
+ if (ret < 0) { \
+ pr_err("kstrtoul() failed with" \
+ " ret: %d\n", ret); \
+ return -EINVAL; \
+ } \
+ ret = tcm_qla2xxx_set_attrib_##name(tpg, val); \
+ \
+ return (!ret) ? count : -EINVAL; \
+}
+
+#define DEF_QLA_TPG_ATTR_BOOL(_name) \
+ \
+static int tcm_qla2xxx_set_attrib_##_name( \
+ struct tcm_qla2xxx_tpg *tpg, \
+ unsigned long val) \
+{ \
+ struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \
+ \
+ if ((val != 0) && (val != 1)) { \
+ pr_err("Illegal boolean value %lu\n", val); \
+ return -EINVAL; \
+ } \
+ \
+ a->_name = val; \
+ return 0; \
+}
+
+#define QLA_TPG_ATTR(_name, _mode) \
+ TF_TPG_ATTRIB_ATTR(tcm_qla2xxx, _name, _mode);
+
+/*
+ * Define tcm_qla2xxx_tpg_attrib_s_generate_node_acls
+ */
+DEF_QLA_TPG_ATTR_BOOL(generate_node_acls);
+DEF_QLA_TPG_ATTRIB(generate_node_acls);
+QLA_TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR);
+
+/*
+ Define tcm_qla2xxx_attrib_s_cache_dynamic_acls
+ */
+DEF_QLA_TPG_ATTR_BOOL(cache_dynamic_acls);
+DEF_QLA_TPG_ATTRIB(cache_dynamic_acls);
+QLA_TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR);
+
+/*
+ * Define tcm_qla2xxx_tpg_attrib_s_demo_mode_write_protect
+ */
+DEF_QLA_TPG_ATTR_BOOL(demo_mode_write_protect);
+DEF_QLA_TPG_ATTRIB(demo_mode_write_protect);
+QLA_TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR);
+
+/*
+ * Define tcm_qla2xxx_tpg_attrib_s_prod_mode_write_protect
+ */
+DEF_QLA_TPG_ATTR_BOOL(prod_mode_write_protect);
+DEF_QLA_TPG_ATTRIB(prod_mode_write_protect);
+QLA_TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR);
+
+static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = {
+ &tcm_qla2xxx_tpg_attrib_generate_node_acls.attr,
+ &tcm_qla2xxx_tpg_attrib_cache_dynamic_acls.attr,
+ &tcm_qla2xxx_tpg_attrib_demo_mode_write_protect.attr,
+ &tcm_qla2xxx_tpg_attrib_prod_mode_write_protect.attr,
+ NULL,
+};
+
+/* End items for tcm_qla2xxx_tpg_attrib_cit */
+
+static ssize_t tcm_qla2xxx_tpg_show_enable(
+ struct se_portal_group *se_tpg,
+ char *page)
+{
+ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
+ struct tcm_qla2xxx_tpg, se_tpg);
+
+ return snprintf(page, PAGE_SIZE, "%d\n",
+ atomic_read(&tpg->lport_tpg_enabled));
+}
+
+static ssize_t tcm_qla2xxx_tpg_store_enable(
+ struct se_portal_group *se_tpg,
+ const char *page,
+ size_t count)
+{
+ struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
+ struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
+ struct tcm_qla2xxx_lport, lport_wwn);
+ struct scsi_qla_host *vha = lport->qla_vha;
+ struct qla_hw_data *ha = vha->hw;
+ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
+ struct tcm_qla2xxx_tpg, se_tpg);
+ unsigned long op;
+ int rc;
+
+ rc = kstrtoul(page, 0, &op);
+ if (rc < 0) {
+ pr_err("kstrtoul() returned %d\n", rc);
+ return -EINVAL;
+ }
+ if ((op != 1) && (op != 0)) {
+ pr_err("Illegal value for tpg_enable: %lu\n", op);
+ return -EINVAL;
+ }
+
+ if (op) {
+ atomic_set(&tpg->lport_tpg_enabled, 1);
+ qlt_enable_vha(vha);
+ } else {
+ if (!ha->tgt.qla_tgt) {
+ pr_err("truct qla_hw_data *ha->tgt.qla_tgt is NULL\n");
+ return -ENODEV;
+ }
+ atomic_set(&tpg->lport_tpg_enabled, 0);
+ qlt_stop_phase1(ha->tgt.qla_tgt);
+ }
+
+ return count;
+}
+
+TF_TPG_BASE_ATTR(tcm_qla2xxx, enable, S_IRUGO | S_IWUSR);
+
+static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = {
+ &tcm_qla2xxx_tpg_enable.attr,
+ NULL,
+};
+
+static struct se_portal_group *tcm_qla2xxx_make_tpg(
+ struct se_wwn *wwn,
+ struct config_group *group,
+ const char *name)
+{
+ struct tcm_qla2xxx_lport *lport = container_of(wwn,
+ struct tcm_qla2xxx_lport, lport_wwn);
+ struct tcm_qla2xxx_tpg *tpg;
+ unsigned long tpgt;
+ int ret;
+
+ if (strstr(name, "tpgt_") != name)
+ return ERR_PTR(-EINVAL);
+ if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
+ return ERR_PTR(-EINVAL);
+
+ if (!lport->qla_npiv_vp && (tpgt != 1)) {
+ pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n");
+ return ERR_PTR(-ENOSYS);
+ }
+
+ tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
+ if (!tpg) {
+ pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
+ return ERR_PTR(-ENOMEM);
+ }
+ tpg->lport = lport;
+ tpg->lport_tpgt = tpgt;
+ /*
+ * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic
+ * NodeACLs
+ */
+ QLA_TPG_ATTRIB(tpg)->generate_node_acls = 1;
+ QLA_TPG_ATTRIB(tpg)->demo_mode_write_protect = 1;
+ QLA_TPG_ATTRIB(tpg)->cache_dynamic_acls = 1;
+
+ ret = core_tpg_register(&tcm_qla2xxx_fabric_configfs->tf_ops, wwn,
+ &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
+ if (ret < 0) {
+ kfree(tpg);
+ return NULL;
+ }
+ /*
+ * Setup local TPG=1 pointer for non NPIV mode.
+ */
+ if (lport->qla_npiv_vp == NULL)
+ lport->tpg_1 = tpg;
+
+ return &tpg->se_tpg;
+}
+
+static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg)
+{
+ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
+ struct tcm_qla2xxx_tpg, se_tpg);
+ struct tcm_qla2xxx_lport *lport = tpg->lport;
+ struct scsi_qla_host *vha = lport->qla_vha;
+ struct qla_hw_data *ha = vha->hw;
+ /*
+ * Call into qla2x_target.c LLD logic to shutdown the active
+ * FC Nexuses and disable target mode operation for this qla_hw_data
+ */
+ if (ha->tgt.qla_tgt && !ha->tgt.qla_tgt->tgt_stop)
+ qlt_stop_phase1(ha->tgt.qla_tgt);
+
+ core_tpg_deregister(se_tpg);
+ /*
+ * Clear local TPG=1 pointer for non NPIV mode.
+ */
+ if (lport->qla_npiv_vp == NULL)
+ lport->tpg_1 = NULL;
+
+ kfree(tpg);
+}
+
+static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg(
+ struct se_wwn *wwn,
+ struct config_group *group,
+ const char *name)
+{
+ struct tcm_qla2xxx_lport *lport = container_of(wwn,
+ struct tcm_qla2xxx_lport, lport_wwn);
+ struct tcm_qla2xxx_tpg *tpg;
+ unsigned long tpgt;
+ int ret;
+
+ if (strstr(name, "tpgt_") != name)
+ return ERR_PTR(-EINVAL);
+ if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
+ return ERR_PTR(-EINVAL);
+
+ tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
+ if (!tpg) {
+ pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
+ return ERR_PTR(-ENOMEM);
+ }
+ tpg->lport = lport;
+ tpg->lport_tpgt = tpgt;
+
+ ret = core_tpg_register(&tcm_qla2xxx_npiv_fabric_configfs->tf_ops, wwn,
+ &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
+ if (ret < 0) {
+ kfree(tpg);
+ return NULL;
+ }
+ return &tpg->se_tpg;
+}
+
+/*
+ * Expected to be called with struct qla_hw_data->hardware_lock held
+ */
+static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_s_id(
+ scsi_qla_host_t *vha,
+ const uint8_t *s_id)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct tcm_qla2xxx_lport *lport;
+ struct se_node_acl *se_nacl;
+ struct tcm_qla2xxx_nacl *nacl;
+ u32 key;
+
+ lport = ha->tgt.target_lport_ptr;
+ if (!lport) {
+ pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
+ dump_stack();
+ return NULL;
+ }
+
+ key = (((unsigned long)s_id[0] << 16) |
+ ((unsigned long)s_id[1] << 8) |
+ (unsigned long)s_id[2]);
+ pr_debug("find_sess_by_s_id: 0x%06x\n", key);
+
+ se_nacl = btree_lookup32(&lport->lport_fcport_map, key);
+ if (!se_nacl) {
+ pr_debug("Unable to locate s_id: 0x%06x\n", key);
+ return NULL;
+ }
+ pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n",
+ se_nacl, se_nacl->initiatorname);
+
+ nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
+ if (!nacl->qla_tgt_sess) {
+ pr_err("Unable to locate struct qla_tgt_sess\n");
+ return NULL;
+ }
+
+ return nacl->qla_tgt_sess;
+}
+
+/*
+ * Expected to be called with struct qla_hw_data->hardware_lock held
+ */
+static void tcm_qla2xxx_set_sess_by_s_id(
+ struct tcm_qla2xxx_lport *lport,
+ struct se_node_acl *new_se_nacl,
+ struct tcm_qla2xxx_nacl *nacl,
+ struct se_session *se_sess,
+ struct qla_tgt_sess *qla_tgt_sess,
+ uint8_t *s_id)
+{
+ u32 key;
+ void *slot;
+ int rc;
+
+ key = (((unsigned long)s_id[0] << 16) |
+ ((unsigned long)s_id[1] << 8) |
+ (unsigned long)s_id[2]);
+ pr_debug("set_sess_by_s_id: %06x\n", key);
+
+ slot = btree_lookup32(&lport->lport_fcport_map, key);
+ if (!slot) {
+ if (new_se_nacl) {
+ pr_debug("Setting up new fc_port entry to new_se_nacl\n");
+ nacl->nport_id = key;
+ rc = btree_insert32(&lport->lport_fcport_map, key,
+ new_se_nacl, GFP_ATOMIC);
+ if (rc)
+ printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n",
+ (int)key);
+ } else {
+ pr_debug("Wiping nonexisting fc_port entry\n");
+ }
+
+ qla_tgt_sess->se_sess = se_sess;
+ nacl->qla_tgt_sess = qla_tgt_sess;
+ return;
+ }
+
+ if (nacl->qla_tgt_sess) {
+ if (new_se_nacl == NULL) {
+ pr_debug("Clearing existing nacl->qla_tgt_sess and fc_port entry\n");
+ btree_remove32(&lport->lport_fcport_map, key);
+ nacl->qla_tgt_sess = NULL;
+ return;
+ }
+ pr_debug("Replacing existing nacl->qla_tgt_sess and fc_port entry\n");
+ btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
+ qla_tgt_sess->se_sess = se_sess;
+ nacl->qla_tgt_sess = qla_tgt_sess;
+ return;
+ }
+
+ if (new_se_nacl == NULL) {
+ pr_debug("Clearing existing fc_port entry\n");
+ btree_remove32(&lport->lport_fcport_map, key);
+ return;
+ }
+
+ pr_debug("Replacing existing fc_port entry w/o active nacl->qla_tgt_sess\n");
+ btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
+ qla_tgt_sess->se_sess = se_sess;
+ nacl->qla_tgt_sess = qla_tgt_sess;
+
+ pr_debug("Setup nacl->qla_tgt_sess %p by s_id for se_nacl: %p, initiatorname: %s\n",
+ nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname);
+}
+
+/*
+ * Expected to be called with struct qla_hw_data->hardware_lock held
+ */
+static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_loop_id(
+ scsi_qla_host_t *vha,
+ const uint16_t loop_id)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct tcm_qla2xxx_lport *lport;
+ struct se_node_acl *se_nacl;
+ struct tcm_qla2xxx_nacl *nacl;
+ struct tcm_qla2xxx_fc_loopid *fc_loopid;
+
+ lport = ha->tgt.target_lport_ptr;
+ if (!lport) {
+ pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
+ dump_stack();
+ return NULL;
+ }
+
+ pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
+
+ fc_loopid = lport->lport_loopid_map + loop_id;
+ se_nacl = fc_loopid->se_nacl;
+ if (!se_nacl) {
+ pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n",
+ loop_id);
+ return NULL;
+ }
+
+ nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
+
+ if (!nacl->qla_tgt_sess) {
+ pr_err("Unable to locate struct qla_tgt_sess\n");
+ return NULL;
+ }
+
+ return nacl->qla_tgt_sess;
+}
+
+/*
+ * Expected to be called with struct qla_hw_data->hardware_lock held
+ */
+static void tcm_qla2xxx_set_sess_by_loop_id(
+ struct tcm_qla2xxx_lport *lport,
+ struct se_node_acl *new_se_nacl,
+ struct tcm_qla2xxx_nacl *nacl,
+ struct se_session *se_sess,
+ struct qla_tgt_sess *qla_tgt_sess,
+ uint16_t loop_id)
+{
+ struct se_node_acl *saved_nacl;
+ struct tcm_qla2xxx_fc_loopid *fc_loopid;
+
+ pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
+
+ fc_loopid = &((struct tcm_qla2xxx_fc_loopid *)
+ lport->lport_loopid_map)[loop_id];
+
+ saved_nacl = fc_loopid->se_nacl;
+ if (!saved_nacl) {
+ pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n");
+ fc_loopid->se_nacl = new_se_nacl;
+ if (qla_tgt_sess->se_sess != se_sess)
+ qla_tgt_sess->se_sess = se_sess;
+ if (nacl->qla_tgt_sess != qla_tgt_sess)
+ nacl->qla_tgt_sess = qla_tgt_sess;
+ return;
+ }
+
+ if (nacl->qla_tgt_sess) {
+ if (new_se_nacl == NULL) {
+ pr_debug("Clearing nacl->qla_tgt_sess and fc_loopid->se_nacl\n");
+ fc_loopid->se_nacl = NULL;
+ nacl->qla_tgt_sess = NULL;
+ return;
+ }
+
+ pr_debug("Replacing existing nacl->qla_tgt_sess and fc_loopid->se_nacl\n");
+ fc_loopid->se_nacl = new_se_nacl;
+ if (qla_tgt_sess->se_sess != se_sess)
+ qla_tgt_sess->se_sess = se_sess;
+ if (nacl->qla_tgt_sess != qla_tgt_sess)
+ nacl->qla_tgt_sess = qla_tgt_sess;
+ return;
+ }
+
+ if (new_se_nacl == NULL) {
+ pr_debug("Clearing fc_loopid->se_nacl\n");
+ fc_loopid->se_nacl = NULL;
+ return;
+ }
+
+ pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->qla_tgt_sess\n");
+ fc_loopid->se_nacl = new_se_nacl;
+ if (qla_tgt_sess->se_sess != se_sess)
+ qla_tgt_sess->se_sess = se_sess;
+ if (nacl->qla_tgt_sess != qla_tgt_sess)
+ nacl->qla_tgt_sess = qla_tgt_sess;
+
+ pr_debug("Setup nacl->qla_tgt_sess %p by loop_id for se_nacl: %p, initiatorname: %s\n",
+ nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname);
+}
+
+static void tcm_qla2xxx_free_session(struct qla_tgt_sess *sess)
+{
+ struct qla_tgt *tgt = sess->tgt;
+ struct qla_hw_data *ha = tgt->ha;
+ struct se_session *se_sess;
+ struct se_node_acl *se_nacl;
+ struct tcm_qla2xxx_lport *lport;
+ struct tcm_qla2xxx_nacl *nacl;
+ unsigned char be_sid[3];
+ unsigned long flags;
+
+ BUG_ON(in_interrupt());
+
+ se_sess = sess->se_sess;
+ if (!se_sess) {
+ pr_err("struct qla_tgt_sess->se_sess is NULL\n");
+ dump_stack();
+ return;
+ }
+ se_nacl = se_sess->se_node_acl;
+ nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
+
+ lport = ha->tgt.target_lport_ptr;
+ if (!lport) {
+ pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
+ dump_stack();
+ return;
+ }
+ target_wait_for_sess_cmds(se_sess, 0);
+ /*
+ * And now clear the se_nacl and session pointers from our HW lport
+ * mappings for fabric S_ID and LOOP_ID.
+ */
+ memset(&be_sid, 0, 3);
+ be_sid[0] = sess->s_id.b.domain;
+ be_sid[1] = sess->s_id.b.area;
+ be_sid[2] = sess->s_id.b.al_pa;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess,
+ sess, be_sid);
+ tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess,
+ sess, sess->loop_id);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ transport_deregister_session_configfs(sess->se_sess);
+ transport_deregister_session(sess->se_sess);
+}
+
+/*
+ * Called via qlt_create_sess():ha->qla2x_tmpl->check_initiator_node_acl()
+ * to locate struct se_node_acl
+ */
+static int tcm_qla2xxx_check_initiator_node_acl(
+ scsi_qla_host_t *vha,
+ unsigned char *fc_wwpn,
+ void *qla_tgt_sess,
+ uint8_t *s_id,
+ uint16_t loop_id)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct tcm_qla2xxx_lport *lport;
+ struct tcm_qla2xxx_tpg *tpg;
+ struct tcm_qla2xxx_nacl *nacl;
+ struct se_portal_group *se_tpg;
+ struct se_node_acl *se_nacl;
+ struct se_session *se_sess;
+ struct qla_tgt_sess *sess = qla_tgt_sess;
+ unsigned char port_name[36];
+ unsigned long flags;
+
+ lport = ha->tgt.target_lport_ptr;
+ if (!lport) {
+ pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
+ dump_stack();
+ return -EINVAL;
+ }
+ /*
+ * Locate the TPG=1 reference..
+ */
+ tpg = lport->tpg_1;
+ if (!tpg) {
+ pr_err("Unable to lcoate struct tcm_qla2xxx_lport->tpg_1\n");
+ return -EINVAL;
+ }
+ se_tpg = &tpg->se_tpg;
+
+ se_sess = transport_init_session();
+ if (IS_ERR(se_sess)) {
+ pr_err("Unable to initialize struct se_session\n");
+ return PTR_ERR(se_sess);
+ }
+ /*
+ * Format the FCP Initiator port_name into colon seperated values to
+ * match the format by tcm_qla2xxx explict ConfigFS NodeACLs.
+ */
+ memset(&port_name, 0, 36);
+ snprintf(port_name, 36, "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
+ fc_wwpn[0], fc_wwpn[1], fc_wwpn[2], fc_wwpn[3], fc_wwpn[4],
+ fc_wwpn[5], fc_wwpn[6], fc_wwpn[7]);
+ /*
+ * Locate our struct se_node_acl either from an explict NodeACL created
+ * via ConfigFS, or via running in TPG demo mode.
+ */
+ se_sess->se_node_acl = core_tpg_check_initiator_node_acl(se_tpg,
+ port_name);
+ if (!se_sess->se_node_acl) {
+ transport_free_session(se_sess);
+ return -EINVAL;
+ }
+ se_nacl = se_sess->se_node_acl;
+ nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
+ /*
+ * And now setup the new se_nacl and session pointers into our HW lport
+ * mappings for fabric S_ID and LOOP_ID.
+ */
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl, se_sess,
+ qla_tgt_sess, s_id);
+ tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl, se_sess,
+ qla_tgt_sess, loop_id);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ /*
+ * Finally register the new FC Nexus with TCM
+ */
+ __transport_register_session(se_nacl->se_tpg, se_nacl, se_sess, sess);
+
+ return 0;
+}
+
+/*
+ * Calls into tcm_qla2xxx used by qla2xxx LLD I/O path.
+ */
+static struct qla_tgt_func_tmpl tcm_qla2xxx_template = {
+ .handle_cmd = tcm_qla2xxx_handle_cmd,
+ .handle_data = tcm_qla2xxx_handle_data,
+ .handle_tmr = tcm_qla2xxx_handle_tmr,
+ .free_cmd = tcm_qla2xxx_free_cmd,
+ .free_mcmd = tcm_qla2xxx_free_mcmd,
+ .free_session = tcm_qla2xxx_free_session,
+ .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl,
+ .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id,
+ .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id,
+ .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map,
+ .put_sess = tcm_qla2xxx_put_sess,
+ .shutdown_sess = tcm_qla2xxx_shutdown_sess,
+};
+
+static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport)
+{
+ int rc;
+
+ rc = btree_init32(&lport->lport_fcport_map);
+ if (rc) {
+ pr_err("Unable to initialize lport->lport_fcport_map btree\n");
+ return rc;
+ }
+
+ lport->lport_loopid_map = vmalloc(sizeof(struct tcm_qla2xxx_fc_loopid) *
+ 65536);
+ if (!lport->lport_loopid_map) {
+ pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n",
+ sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
+ btree_destroy32(&lport->lport_fcport_map);
+ return -ENOMEM;
+ }
+ memset(lport->lport_loopid_map, 0, sizeof(struct tcm_qla2xxx_fc_loopid)
+ * 65536);
+ pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n",
+ sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
+ return 0;
+}
+
+static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct tcm_qla2xxx_lport *lport;
+ /*
+ * Setup local pointer to vha, NPIV VP pointer (if present) and
+ * vha->tcm_lport pointer
+ */
+ lport = (struct tcm_qla2xxx_lport *)ha->tgt.target_lport_ptr;
+ lport->qla_vha = vha;
+
+ return 0;
+}
+
+static struct se_wwn *tcm_qla2xxx_make_lport(
+ struct target_fabric_configfs *tf,
+ struct config_group *group,
+ const char *name)
+{
+ struct tcm_qla2xxx_lport *lport;
+ u64 wwpn;
+ int ret = -ENODEV;
+
+ if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0)
+ return ERR_PTR(-EINVAL);
+
+ lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL);
+ if (!lport) {
+ pr_err("Unable to allocate struct tcm_qla2xxx_lport\n");
+ return ERR_PTR(-ENOMEM);
+ }
+ lport->lport_wwpn = wwpn;
+ tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN,
+ wwpn);
+
+ ret = tcm_qla2xxx_init_lport(lport);
+ if (ret != 0)
+ goto out;
+
+ ret = qlt_lport_register(&tcm_qla2xxx_template, wwpn,
+ tcm_qla2xxx_lport_register_cb, lport);
+ if (ret != 0)
+ goto out_lport;
+
+ return &lport->lport_wwn;
+out_lport:
+ vfree(lport->lport_loopid_map);
+ btree_destroy32(&lport->lport_fcport_map);
+out:
+ kfree(lport);
+ return ERR_PTR(ret);
+}
+
+static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn)
+{
+ struct tcm_qla2xxx_lport *lport = container_of(wwn,
+ struct tcm_qla2xxx_lport, lport_wwn);
+ struct scsi_qla_host *vha = lport->qla_vha;
+ struct qla_hw_data *ha = vha->hw;
+ struct se_node_acl *node;
+ u32 key = 0;
+
+ /*
+ * Call into qla2x_target.c LLD logic to complete the
+ * shutdown of struct qla_tgt after the call to
+ * qlt_stop_phase1() from tcm_qla2xxx_drop_tpg() above..
+ */
+ if (ha->tgt.qla_tgt && !ha->tgt.qla_tgt->tgt_stopped)
+ qlt_stop_phase2(ha->tgt.qla_tgt);
+
+ qlt_lport_deregister(vha);
+
+ vfree(lport->lport_loopid_map);
+ btree_for_each_safe32(&lport->lport_fcport_map, key, node)
+ btree_remove32(&lport->lport_fcport_map, key);
+ btree_destroy32(&lport->lport_fcport_map);
+ kfree(lport);
+}
+
+static struct se_wwn *tcm_qla2xxx_npiv_make_lport(
+ struct target_fabric_configfs *tf,
+ struct config_group *group,
+ const char *name)
+{
+ struct tcm_qla2xxx_lport *lport;
+ u64 npiv_wwpn, npiv_wwnn;
+ int ret;
+
+ if (tcm_qla2xxx_npiv_parse_wwn(name, strlen(name)+1,
+ &npiv_wwpn, &npiv_wwnn) < 0)
+ return ERR_PTR(-EINVAL);
+
+ lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL);
+ if (!lport) {
+ pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n");
+ return ERR_PTR(-ENOMEM);
+ }
+ lport->lport_npiv_wwpn = npiv_wwpn;
+ lport->lport_npiv_wwnn = npiv_wwnn;
+ tcm_qla2xxx_npiv_format_wwn(&lport->lport_npiv_name[0],
+ TCM_QLA2XXX_NAMELEN, npiv_wwpn, npiv_wwnn);
+
+/* FIXME: tcm_qla2xxx_npiv_make_lport */
+ ret = -ENOSYS;
+ if (ret != 0)
+ goto out;
+
+ return &lport->lport_wwn;
+out:
+ kfree(lport);
+ return ERR_PTR(ret);
+}
+
+static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn)
+{
+ struct tcm_qla2xxx_lport *lport = container_of(wwn,
+ struct tcm_qla2xxx_lport, lport_wwn);
+ struct scsi_qla_host *vha = lport->qla_vha;
+ struct Scsi_Host *sh = vha->host;
+ /*
+ * Notify libfc that we want to release the lport->npiv_vport
+ */
+ fc_vport_terminate(lport->npiv_vport);
+
+ scsi_host_put(sh);
+ kfree(lport);
+}
+
+
+static ssize_t tcm_qla2xxx_wwn_show_attr_version(
+ struct target_fabric_configfs *tf,
+ char *page)
+{
+ return sprintf(page,
+ "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on "
+ UTS_RELEASE"\n", TCM_QLA2XXX_VERSION, utsname()->sysname,
+ utsname()->machine);
+}
+
+TF_WWN_ATTR_RO(tcm_qla2xxx, version);
+
+static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = {
+ &tcm_qla2xxx_wwn_version.attr,
+ NULL,
+};
+
+static struct target_core_fabric_ops tcm_qla2xxx_ops = {
+ .get_fabric_name = tcm_qla2xxx_get_fabric_name,
+ .get_fabric_proto_ident = tcm_qla2xxx_get_fabric_proto_ident,
+ .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
+ .tpg_get_tag = tcm_qla2xxx_get_tag,
+ .tpg_get_default_depth = tcm_qla2xxx_get_default_depth,
+ .tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id,
+ .tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len,
+ .tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id,
+ .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
+ .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
+ .tpg_check_demo_mode_write_protect =
+ tcm_qla2xxx_check_demo_write_protect,
+ .tpg_check_prod_mode_write_protect =
+ tcm_qla2xxx_check_prod_write_protect,
+ .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_true,
+ .tpg_alloc_fabric_acl = tcm_qla2xxx_alloc_fabric_acl,
+ .tpg_release_fabric_acl = tcm_qla2xxx_release_fabric_acl,
+ .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
+ .new_cmd_map = NULL,
+ .check_stop_free = tcm_qla2xxx_check_stop_free,
+ .release_cmd = tcm_qla2xxx_release_cmd,
+ .shutdown_session = tcm_qla2xxx_shutdown_session,
+ .close_session = tcm_qla2xxx_close_session,
+ .sess_get_index = tcm_qla2xxx_sess_get_index,
+ .sess_get_initiator_sid = NULL,
+ .write_pending = tcm_qla2xxx_write_pending,
+ .write_pending_status = tcm_qla2xxx_write_pending_status,
+ .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
+ .get_task_tag = tcm_qla2xxx_get_task_tag,
+ .get_cmd_state = tcm_qla2xxx_get_cmd_state,
+ .queue_data_in = tcm_qla2xxx_queue_data_in,
+ .queue_status = tcm_qla2xxx_queue_status,
+ .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
+ .get_fabric_sense_len = tcm_qla2xxx_get_fabric_sense_len,
+ .set_fabric_sense_len = tcm_qla2xxx_set_fabric_sense_len,
+ /*
+ * Setup function pointers for generic logic in
+ * target_core_fabric_configfs.c
+ */
+ .fabric_make_wwn = tcm_qla2xxx_make_lport,
+ .fabric_drop_wwn = tcm_qla2xxx_drop_lport,
+ .fabric_make_tpg = tcm_qla2xxx_make_tpg,
+ .fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
+ .fabric_post_link = NULL,
+ .fabric_pre_unlink = NULL,
+ .fabric_make_np = NULL,
+ .fabric_drop_np = NULL,
+ .fabric_make_nodeacl = tcm_qla2xxx_make_nodeacl,
+ .fabric_drop_nodeacl = tcm_qla2xxx_drop_nodeacl,
+};
+
+static struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = {
+ .get_fabric_name = tcm_qla2xxx_npiv_get_fabric_name,
+ .get_fabric_proto_ident = tcm_qla2xxx_get_fabric_proto_ident,
+ .tpg_get_wwn = tcm_qla2xxx_npiv_get_fabric_wwn,
+ .tpg_get_tag = tcm_qla2xxx_get_tag,
+ .tpg_get_default_depth = tcm_qla2xxx_get_default_depth,
+ .tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id,
+ .tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len,
+ .tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id,
+ .tpg_check_demo_mode = tcm_qla2xxx_check_false,
+ .tpg_check_demo_mode_cache = tcm_qla2xxx_check_true,
+ .tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_true,
+ .tpg_check_prod_mode_write_protect = tcm_qla2xxx_check_false,
+ .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_true,
+ .tpg_alloc_fabric_acl = tcm_qla2xxx_alloc_fabric_acl,
+ .tpg_release_fabric_acl = tcm_qla2xxx_release_fabric_acl,
+ .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
+ .release_cmd = tcm_qla2xxx_release_cmd,
+ .shutdown_session = tcm_qla2xxx_shutdown_session,
+ .close_session = tcm_qla2xxx_close_session,
+ .sess_get_index = tcm_qla2xxx_sess_get_index,
+ .sess_get_initiator_sid = NULL,
+ .write_pending = tcm_qla2xxx_write_pending,
+ .write_pending_status = tcm_qla2xxx_write_pending_status,
+ .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
+ .get_task_tag = tcm_qla2xxx_get_task_tag,
+ .get_cmd_state = tcm_qla2xxx_get_cmd_state,
+ .queue_data_in = tcm_qla2xxx_queue_data_in,
+ .queue_status = tcm_qla2xxx_queue_status,
+ .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
+ .get_fabric_sense_len = tcm_qla2xxx_get_fabric_sense_len,
+ .set_fabric_sense_len = tcm_qla2xxx_set_fabric_sense_len,
+ /*
+ * Setup function pointers for generic logic in
+ * target_core_fabric_configfs.c
+ */
+ .fabric_make_wwn = tcm_qla2xxx_npiv_make_lport,
+ .fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport,
+ .fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg,
+ .fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
+ .fabric_post_link = NULL,
+ .fabric_pre_unlink = NULL,
+ .fabric_make_np = NULL,
+ .fabric_drop_np = NULL,
+ .fabric_make_nodeacl = tcm_qla2xxx_make_nodeacl,
+ .fabric_drop_nodeacl = tcm_qla2xxx_drop_nodeacl,
+};
+
+static int tcm_qla2xxx_register_configfs(void)
+{
+ struct target_fabric_configfs *fabric, *npiv_fabric;
+ int ret;
+
+ pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on "
+ UTS_RELEASE"\n", TCM_QLA2XXX_VERSION, utsname()->sysname,
+ utsname()->machine);
+ /*
+ * Register the top level struct config_item_type with TCM core
+ */
+ fabric = target_fabric_configfs_init(THIS_MODULE, "qla2xxx");
+ if (IS_ERR(fabric)) {
+ pr_err("target_fabric_configfs_init() failed\n");
+ return PTR_ERR(fabric);
+ }
+ /*
+ * Setup fabric->tf_ops from our local tcm_qla2xxx_ops
+ */
+ fabric->tf_ops = tcm_qla2xxx_ops;
+ /*
+ * Setup default attribute lists for various fabric->tf_cit_tmpl
+ */
+ TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = tcm_qla2xxx_wwn_attrs;
+ TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = tcm_qla2xxx_tpg_attrs;
+ TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs =
+ tcm_qla2xxx_tpg_attrib_attrs;
+ TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL;
+ TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL;
+ TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = NULL;
+ TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;
+ TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL;
+ TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL;
+ /*
+ * Register the fabric for use within TCM
+ */
+ ret = target_fabric_configfs_register(fabric);
+ if (ret < 0) {
+ pr_err("target_fabric_configfs_register() failed for TCM_QLA2XXX\n");
+ return ret;
+ }
+ /*
+ * Setup our local pointer to *fabric
+ */
+ tcm_qla2xxx_fabric_configfs = fabric;
+ pr_debug("TCM_QLA2XXX[0] - Set fabric -> tcm_qla2xxx_fabric_configfs\n");
+
+ /*
+ * Register the top level struct config_item_type for NPIV with TCM core
+ */
+ npiv_fabric = target_fabric_configfs_init(THIS_MODULE, "qla2xxx_npiv");
+ if (IS_ERR(npiv_fabric)) {
+ pr_err("target_fabric_configfs_init() failed\n");
+ ret = PTR_ERR(npiv_fabric);
+ goto out_fabric;
+ }
+ /*
+ * Setup fabric->tf_ops from our local tcm_qla2xxx_npiv_ops
+ */
+ npiv_fabric->tf_ops = tcm_qla2xxx_npiv_ops;
+ /*
+ * Setup default attribute lists for various npiv_fabric->tf_cit_tmpl
+ */
+ TF_CIT_TMPL(npiv_fabric)->tfc_wwn_cit.ct_attrs = tcm_qla2xxx_wwn_attrs;
+ TF_CIT_TMPL(npiv_fabric)->tfc_tpg_base_cit.ct_attrs = NULL;
+ TF_CIT_TMPL(npiv_fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL;
+ TF_CIT_TMPL(npiv_fabric)->tfc_tpg_param_cit.ct_attrs = NULL;
+ TF_CIT_TMPL(npiv_fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL;
+ TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_base_cit.ct_attrs = NULL;
+ TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;
+ TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL;
+ TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL;
+ /*
+ * Register the npiv_fabric for use within TCM
+ */
+ ret = target_fabric_configfs_register(npiv_fabric);
+ if (ret < 0) {
+ pr_err("target_fabric_configfs_register() failed for TCM_QLA2XXX\n");
+ goto out_fabric;
+ }
+ /*
+ * Setup our local pointer to *npiv_fabric
+ */
+ tcm_qla2xxx_npiv_fabric_configfs = npiv_fabric;
+ pr_debug("TCM_QLA2XXX[0] - Set fabric -> tcm_qla2xxx_npiv_fabric_configfs\n");
+
+ tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free",
+ WQ_MEM_RECLAIM, 0);
+ if (!tcm_qla2xxx_free_wq) {
+ ret = -ENOMEM;
+ goto out_fabric_npiv;
+ }
+
+ tcm_qla2xxx_cmd_wq = alloc_workqueue("tcm_qla2xxx_cmd", 0, 0);
+ if (!tcm_qla2xxx_cmd_wq) {
+ ret = -ENOMEM;
+ goto out_free_wq;
+ }
+
+ return 0;
+
+out_free_wq:
+ destroy_workqueue(tcm_qla2xxx_free_wq);
+out_fabric_npiv:
+ target_fabric_configfs_deregister(tcm_qla2xxx_npiv_fabric_configfs);
+out_fabric:
+ target_fabric_configfs_deregister(tcm_qla2xxx_fabric_configfs);
+ return ret;
+}
+
+static void tcm_qla2xxx_deregister_configfs(void)
+{
+ destroy_workqueue(tcm_qla2xxx_cmd_wq);
+ destroy_workqueue(tcm_qla2xxx_free_wq);
+
+ target_fabric_configfs_deregister(tcm_qla2xxx_fabric_configfs);
+ tcm_qla2xxx_fabric_configfs = NULL;
+ pr_debug("TCM_QLA2XXX[0] - Cleared tcm_qla2xxx_fabric_configfs\n");
+
+ target_fabric_configfs_deregister(tcm_qla2xxx_npiv_fabric_configfs);
+ tcm_qla2xxx_npiv_fabric_configfs = NULL;
+ pr_debug("TCM_QLA2XXX[0] - Cleared tcm_qla2xxx_npiv_fabric_configfs\n");
+}
+
+static int __init tcm_qla2xxx_init(void)
+{
+ int ret;
+
+ ret = tcm_qla2xxx_register_configfs();
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static void __exit tcm_qla2xxx_exit(void)
+{
+ tcm_qla2xxx_deregister_configfs();
+}
+
+MODULE_DESCRIPTION("TCM QLA2XXX series NPIV enabled fabric driver");
+MODULE_LICENSE("GPL");
+module_init(tcm_qla2xxx_init);
+module_exit(tcm_qla2xxx_exit);
--- /dev/null
+#include <target/target_core_base.h>
+#include <linux/btree.h>
+
+#define TCM_QLA2XXX_VERSION "v0.1"
+/* length of ASCII WWPNs including pad */
+#define TCM_QLA2XXX_NAMELEN 32
+/* lenth of ASCII NPIV 'WWPN+WWNN' including pad */
+#define TCM_QLA2XXX_NPIV_NAMELEN 66
+
+#include "qla_target.h"
+
+struct tcm_qla2xxx_nacl {
+ /* From libfc struct fc_rport->port_id */
+ u32 nport_id;
+ /* Binary World Wide unique Node Name for remote FC Initiator Nport */
+ u64 nport_wwnn;
+ /* ASCII formatted WWPN for FC Initiator Nport */
+ char nport_name[TCM_QLA2XXX_NAMELEN];
+ /* Pointer to qla_tgt_sess */
+ struct qla_tgt_sess *qla_tgt_sess;
+ /* Pointer to TCM FC nexus */
+ struct se_session *nport_nexus;
+ /* Returned by tcm_qla2xxx_make_nodeacl() */
+ struct se_node_acl se_node_acl;
+};
+
+struct tcm_qla2xxx_tpg_attrib {
+ int generate_node_acls;
+ int cache_dynamic_acls;
+ int demo_mode_write_protect;
+ int prod_mode_write_protect;
+};
+
+struct tcm_qla2xxx_tpg {
+ /* FC lport target portal group tag for TCM */
+ u16 lport_tpgt;
+ /* Atomic bit to determine TPG active status */
+ atomic_t lport_tpg_enabled;
+ /* Pointer back to tcm_qla2xxx_lport */
+ struct tcm_qla2xxx_lport *lport;
+ /* Used by tcm_qla2xxx_tpg_attrib_cit */
+ struct tcm_qla2xxx_tpg_attrib tpg_attrib;
+ /* Returned by tcm_qla2xxx_make_tpg() */
+ struct se_portal_group se_tpg;
+};
+
+#define QLA_TPG_ATTRIB(tpg) (&(tpg)->tpg_attrib)
+
+struct tcm_qla2xxx_fc_loopid {
+ struct se_node_acl *se_nacl;
+};
+
+struct tcm_qla2xxx_lport {
+ /* SCSI protocol the lport is providing */
+ u8 lport_proto_id;
+ /* Binary World Wide unique Port Name for FC Target Lport */
+ u64 lport_wwpn;
+ /* Binary World Wide unique Port Name for FC NPIV Target Lport */
+ u64 lport_npiv_wwpn;
+ /* Binary World Wide unique Node Name for FC NPIV Target Lport */
+ u64 lport_npiv_wwnn;
+ /* ASCII formatted WWPN for FC Target Lport */
+ char lport_name[TCM_QLA2XXX_NAMELEN];
+ /* ASCII formatted WWPN+WWNN for NPIV FC Target Lport */
+ char lport_npiv_name[TCM_QLA2XXX_NPIV_NAMELEN];
+ /* map for fc_port pointers in 24-bit FC Port ID space */
+ struct btree_head32 lport_fcport_map;
+ /* vmalloc-ed memory for fc_port pointers for 16-bit FC loop ID */
+ struct tcm_qla2xxx_fc_loopid *lport_loopid_map;
+ /* Pointer to struct scsi_qla_host from qla2xxx LLD */
+ struct scsi_qla_host *qla_vha;
+ /* Pointer to struct scsi_qla_host for NPIV VP from qla2xxx LLD */
+ struct scsi_qla_host *qla_npiv_vp;
+ /* Pointer to struct qla_tgt pointer */
+ struct qla_tgt lport_qla_tgt;
+ /* Pointer to struct fc_vport for NPIV vport from libfc */
+ struct fc_vport *npiv_vport;
+ /* Pointer to TPG=1 for non NPIV mode */
+ struct tcm_qla2xxx_tpg *tpg_1;
+ /* Returned by tcm_qla2xxx_make_lport() */
+ struct se_wwn lport_wwn;
+};
#include "ql4_glbl.h"
#include "ql4_dbg.h"
+static ssize_t
+qla4_8xxx_sysfs_read_fw_dump(struct file *filep, struct kobject *kobj,
+ struct bin_attribute *ba, char *buf, loff_t off,
+ size_t count)
+{
+ struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
+ struct device, kobj)));
+
+ if (!is_qla8022(ha))
+ return -EINVAL;
+
+ if (!test_bit(AF_82XX_DUMP_READING, &ha->flags))
+ return 0;
+
+ return memory_read_from_buffer(buf, count, &off, ha->fw_dump,
+ ha->fw_dump_size);
+}
+
+static ssize_t
+qla4_8xxx_sysfs_write_fw_dump(struct file *filep, struct kobject *kobj,
+ struct bin_attribute *ba, char *buf, loff_t off,
+ size_t count)
+{
+ struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
+ struct device, kobj)));
+ uint32_t dev_state;
+ long reading;
+ int ret = 0;
+
+ if (!is_qla8022(ha))
+ return -EINVAL;
+
+ if (off != 0)
+ return ret;
+
+ buf[1] = 0;
+ ret = kstrtol(buf, 10, &reading);
+ if (ret) {
+ ql4_printk(KERN_ERR, ha, "%s: Invalid input. Return err %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ switch (reading) {
+ case 0:
+ /* clear dump collection flags */
+ if (test_and_clear_bit(AF_82XX_DUMP_READING, &ha->flags)) {
+ clear_bit(AF_82XX_FW_DUMPED, &ha->flags);
+ /* Reload minidump template */
+ qla4xxx_alloc_fw_dump(ha);
+ DEBUG2(ql4_printk(KERN_INFO, ha,
+ "Firmware template reloaded\n"));
+ }
+ break;
+ case 1:
+ /* Set flag to read dump */
+ if (test_bit(AF_82XX_FW_DUMPED, &ha->flags) &&
+ !test_bit(AF_82XX_DUMP_READING, &ha->flags)) {
+ set_bit(AF_82XX_DUMP_READING, &ha->flags);
+ DEBUG2(ql4_printk(KERN_INFO, ha,
+ "Raw firmware dump ready for read on (%ld).\n",
+ ha->host_no));
+ }
+ break;
+ case 2:
+ /* Reset HBA */
+ qla4_8xxx_idc_lock(ha);
+ dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
+ if (dev_state == QLA82XX_DEV_READY) {
+ ql4_printk(KERN_INFO, ha,
+ "%s: Setting Need reset, reset_owner is 0x%x.\n",
+ __func__, ha->func_num);
+ qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
+ QLA82XX_DEV_NEED_RESET);
+ set_bit(AF_82XX_RST_OWNER, &ha->flags);
+ } else
+ ql4_printk(KERN_INFO, ha,
+ "%s: Reset not performed as device state is 0x%x\n",
+ __func__, dev_state);
+
+ qla4_8xxx_idc_unlock(ha);
+ break;
+ default:
+ /* do nothing */
+ break;
+ }
+
+ return count;
+}
+
+static struct bin_attribute sysfs_fw_dump_attr = {
+ .attr = {
+ .name = "fw_dump",
+ .mode = S_IRUSR | S_IWUSR,
+ },
+ .size = 0,
+ .read = qla4_8xxx_sysfs_read_fw_dump,
+ .write = qla4_8xxx_sysfs_write_fw_dump,
+};
+
+static struct sysfs_entry {
+ char *name;
+ struct bin_attribute *attr;
+} bin_file_entries[] = {
+ { "fw_dump", &sysfs_fw_dump_attr },
+ { NULL },
+};
+
+void qla4_8xxx_alloc_sysfs_attr(struct scsi_qla_host *ha)
+{
+ struct Scsi_Host *host = ha->host;
+ struct sysfs_entry *iter;
+ int ret;
+
+ for (iter = bin_file_entries; iter->name; iter++) {
+ ret = sysfs_create_bin_file(&host->shost_gendev.kobj,
+ iter->attr);
+ if (ret)
+ ql4_printk(KERN_ERR, ha,
+ "Unable to create sysfs %s binary attribute (%d).\n",
+ iter->name, ret);
+ }
+}
+
+void qla4_8xxx_free_sysfs_attr(struct scsi_qla_host *ha)
+{
+ struct Scsi_Host *host = ha->host;
+ struct sysfs_entry *iter;
+
+ for (iter = bin_file_entries; iter->name; iter++)
+ sysfs_remove_bin_file(&host->shost_gendev.kobj,
+ iter->attr);
+}
+
/* Scsi_Host attributes. */
static ssize_t
qla4xxx_fw_version_show(struct device *dev,
int (*get_sys_info) (struct scsi_qla_host *);
};
+struct ql4_mdump_size_table {
+ uint32_t size;
+ uint32_t size_cmask_02;
+ uint32_t size_cmask_04;
+ uint32_t size_cmask_08;
+ uint32_t size_cmask_10;
+ uint32_t size_cmask_FF;
+ uint32_t version;
+};
+
/*qla4xxx ipaddress configuration details */
struct ipaddress_config {
uint16_t ipv4_options;
#define AF_EEH_BUSY 20 /* 0x00100000 */
#define AF_PCI_CHANNEL_IO_PERM_FAILURE 21 /* 0x00200000 */
#define AF_BUILD_DDB_LIST 22 /* 0x00400000 */
+#define AF_82XX_FW_DUMPED 24 /* 0x01000000 */
+#define AF_82XX_RST_OWNER 25 /* 0x02000000 */
+#define AF_82XX_DUMP_READING 26 /* 0x04000000 */
+
unsigned long dpc_flags;
#define DPC_RESET_HA 1 /* 0x00000002 */
uint32_t nx_dev_init_timeout;
uint32_t nx_reset_timeout;
+ void *fw_dump;
+ uint32_t fw_dump_size;
+ uint32_t fw_dump_capture_mask;
+ void *fw_dump_tmplt_hdr;
+ uint32_t fw_dump_tmplt_size;
struct completion mbx_intr_comp;
#define PROCESS_ALL_AENS 0
#define FLUSH_DDB_CHANGED_AENS 1
+/* Defines for udev events */
+#define QL4_UEVENT_CODE_FW_DUMP 0
+
#endif /*_QLA4XXX_H */
#define MBOX_CMD_GET_IP_ADDR_STATE 0x0091
#define MBOX_CMD_SEND_IPV6_ROUTER_SOL 0x0092
#define MBOX_CMD_GET_DB_ENTRY_CURRENT_IP_ADDR 0x0093
+#define MBOX_CMD_MINIDUMP 0x0129
+
+/* Minidump subcommand */
+#define MINIDUMP_GET_SIZE_SUBCOMMAND 0x00
+#define MINIDUMP_GET_TMPLT_SUBCOMMAND 0x01
/* Mailbox 1 */
#define FW_STATE_READY 0x0000
uint8_t reserved2[264]; /* 0x0308 - 0x040F */
};
+#define QLA82XX_DBG_STATE_ARRAY_LEN 16
+#define QLA82XX_DBG_CAP_SIZE_ARRAY_LEN 8
+#define QLA82XX_DBG_RSVD_ARRAY_LEN 8
+
+struct qla4_8xxx_minidump_template_hdr {
+ uint32_t entry_type;
+ uint32_t first_entry_offset;
+ uint32_t size_of_template;
+ uint32_t capture_debug_level;
+ uint32_t num_of_entries;
+ uint32_t version;
+ uint32_t driver_timestamp;
+ uint32_t checksum;
+
+ uint32_t driver_capture_mask;
+ uint32_t driver_info_word2;
+ uint32_t driver_info_word3;
+ uint32_t driver_info_word4;
+
+ uint32_t saved_state_array[QLA82XX_DBG_STATE_ARRAY_LEN];
+ uint32_t capture_size_array[QLA82XX_DBG_CAP_SIZE_ARRAY_LEN];
+};
+
#endif /* _QLA4X_FW_H */
int qla4xxx_process_vendor_specific(struct bsg_job *bsg_job);
void qla4xxx_arm_relogin_timer(struct ddb_entry *ddb_entry);
+int qla4xxx_get_minidump_template(struct scsi_qla_host *ha,
+ dma_addr_t phys_addr);
+int qla4xxx_req_template_size(struct scsi_qla_host *ha);
+void qla4_8xxx_alloc_sysfs_attr(struct scsi_qla_host *ha);
+void qla4_8xxx_free_sysfs_attr(struct scsi_qla_host *ha);
+void qla4xxx_alloc_fw_dump(struct scsi_qla_host *ha);
extern int ql4xextended_error_logging;
extern int ql4xdontresethba;
extern int ql4xenablemsix;
+extern int ql4xmdcapmask;
+extern int ql4xenablemd;
extern struct device_attribute *qla4xxx_host_attrs[];
#endif /* _QLA4x_GBL_H */
return ipv4_wait|ipv6_wait;
}
+/**
+ * qla4xxx_alloc_fw_dump - Allocate memory for minidump data.
+ * @ha: pointer to host adapter structure.
+ **/
+void qla4xxx_alloc_fw_dump(struct scsi_qla_host *ha)
+{
+ int status;
+ uint32_t capture_debug_level;
+ int hdr_entry_bit, k;
+ void *md_tmp;
+ dma_addr_t md_tmp_dma;
+ struct qla4_8xxx_minidump_template_hdr *md_hdr;
+
+ if (ha->fw_dump) {
+ ql4_printk(KERN_WARNING, ha,
+ "Firmware dump previously allocated.\n");
+ return;
+ }
+
+ status = qla4xxx_req_template_size(ha);
+ if (status != QLA_SUCCESS) {
+ ql4_printk(KERN_INFO, ha,
+ "scsi%ld: Failed to get template size\n",
+ ha->host_no);
+ return;
+ }
+
+ clear_bit(AF_82XX_FW_DUMPED, &ha->flags);
+
+ /* Allocate memory for saving the template */
+ md_tmp = dma_alloc_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,
+ &md_tmp_dma, GFP_KERNEL);
+
+ /* Request template */
+ status = qla4xxx_get_minidump_template(ha, md_tmp_dma);
+ if (status != QLA_SUCCESS) {
+ ql4_printk(KERN_INFO, ha,
+ "scsi%ld: Failed to get minidump template\n",
+ ha->host_no);
+ goto alloc_cleanup;
+ }
+
+ md_hdr = (struct qla4_8xxx_minidump_template_hdr *)md_tmp;
+
+ capture_debug_level = md_hdr->capture_debug_level;
+
+ /* Get capture mask based on module loadtime setting. */
+ if (ql4xmdcapmask >= 0x3 && ql4xmdcapmask <= 0x7F)
+ ha->fw_dump_capture_mask = ql4xmdcapmask;
+ else
+ ha->fw_dump_capture_mask = capture_debug_level;
+
+ md_hdr->driver_capture_mask = ha->fw_dump_capture_mask;
+
+ DEBUG2(ql4_printk(KERN_INFO, ha, "Minimum num of entries = %d\n",
+ md_hdr->num_of_entries));
+ DEBUG2(ql4_printk(KERN_INFO, ha, "Dump template size = %d\n",
+ ha->fw_dump_tmplt_size));
+ DEBUG2(ql4_printk(KERN_INFO, ha, "Selected Capture mask =0x%x\n",
+ ha->fw_dump_capture_mask));
+
+ /* Calculate fw_dump_size */
+ for (hdr_entry_bit = 0x2, k = 1; (hdr_entry_bit & 0xFF);
+ hdr_entry_bit <<= 1, k++) {
+ if (hdr_entry_bit & ha->fw_dump_capture_mask)
+ ha->fw_dump_size += md_hdr->capture_size_array[k];
+ }
+
+ /* Total firmware dump size including command header */
+ ha->fw_dump_size += ha->fw_dump_tmplt_size;
+ ha->fw_dump = vmalloc(ha->fw_dump_size);
+ if (!ha->fw_dump)
+ goto alloc_cleanup;
+
+ DEBUG2(ql4_printk(KERN_INFO, ha,
+ "Minidump Tempalate Size = 0x%x KB\n",
+ ha->fw_dump_tmplt_size));
+ DEBUG2(ql4_printk(KERN_INFO, ha,
+ "Total Minidump size = 0x%x KB\n", ha->fw_dump_size));
+
+ memcpy(ha->fw_dump, md_tmp, ha->fw_dump_tmplt_size);
+ ha->fw_dump_tmplt_hdr = ha->fw_dump;
+
+alloc_cleanup:
+ dma_free_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,
+ md_tmp, md_tmp_dma);
+}
+
static int qla4xxx_fw_ready(struct scsi_qla_host *ha)
{
uint32_t timeout_count;
"control block\n", ha->host_no, __func__));
return status;
}
+
if (!qla4xxx_fw_ready(ha))
return status;
+ if (is_qla8022(ha) && !test_bit(AF_INIT_DONE, &ha->flags))
+ qla4xxx_alloc_fw_dump(ha);
+
return qla4xxx_get_firmware_status(ha);
}
switch (state) {
case DDB_DS_SESSION_ACTIVE:
case DDB_DS_DISCOVERY:
- ddb_entry->unblock_sess(ddb_entry->sess);
qla4xxx_update_session_conn_param(ha, ddb_entry);
+ ddb_entry->unblock_sess(ddb_entry->sess);
status = QLA_SUCCESS;
break;
case DDB_DS_SESSION_FAILED:
}
break;
case DDB_DS_SESSION_ACTIVE:
+ case DDB_DS_DISCOVERY:
switch (state) {
case DDB_DS_SESSION_FAILED:
/*
}
}
- if (is_qla8022(ha)) {
- if (test_bit(AF_FW_RECOVERY, &ha->flags)) {
- DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: "
- "prematurely completing mbx cmd as firmware "
- "recovery detected\n", ha->host_no, __func__));
- return status;
- }
- /* Do not send any mbx cmd if h/w is in failed state*/
- qla4_8xxx_idc_lock(ha);
- dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
- qla4_8xxx_idc_unlock(ha);
- if (dev_state == QLA82XX_DEV_FAILED) {
- ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: H/W is in "
- "failed state, do not send any mailbox commands\n",
- ha->host_no, __func__);
- return status;
- }
- }
-
if ((is_aer_supported(ha)) &&
(test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))) {
DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Perm failure on EEH, "
msleep(10);
}
+ if (is_qla8022(ha)) {
+ if (test_bit(AF_FW_RECOVERY, &ha->flags)) {
+ DEBUG2(ql4_printk(KERN_WARNING, ha,
+ "scsi%ld: %s: prematurely completing mbx cmd as firmware recovery detected\n",
+ ha->host_no, __func__));
+ goto mbox_exit;
+ }
+ /* Do not send any mbx cmd if h/w is in failed state*/
+ qla4_8xxx_idc_lock(ha);
+ dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
+ qla4_8xxx_idc_unlock(ha);
+ if (dev_state == QLA82XX_DEV_FAILED) {
+ ql4_printk(KERN_WARNING, ha,
+ "scsi%ld: %s: H/W is in failed state, do not send any mailbox commands\n",
+ ha->host_no, __func__);
+ goto mbox_exit;
+ }
+ }
+
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->mbox_status_count = outCount;
return status;
}
+/**
+ * qla4xxx_get_minidump_template - Get the firmware template
+ * @ha: Pointer to host adapter structure.
+ * @phys_addr: dma address for template
+ *
+ * Obtain the minidump template from firmware during initialization
+ * as it may not be available when minidump is desired.
+ **/
+int qla4xxx_get_minidump_template(struct scsi_qla_host *ha,
+ dma_addr_t phys_addr)
+{
+ uint32_t mbox_cmd[MBOX_REG_COUNT];
+ uint32_t mbox_sts[MBOX_REG_COUNT];
+ int status;
+
+ memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+ memset(&mbox_sts, 0, sizeof(mbox_sts));
+
+ mbox_cmd[0] = MBOX_CMD_MINIDUMP;
+ mbox_cmd[1] = MINIDUMP_GET_TMPLT_SUBCOMMAND;
+ mbox_cmd[2] = LSDW(phys_addr);
+ mbox_cmd[3] = MSDW(phys_addr);
+ mbox_cmd[4] = ha->fw_dump_tmplt_size;
+ mbox_cmd[5] = 0;
+
+ status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0],
+ &mbox_sts[0]);
+ if (status != QLA_SUCCESS) {
+ DEBUG2(ql4_printk(KERN_INFO, ha,
+ "scsi%ld: %s: Cmd = %08X, mbx[0] = 0x%04x, mbx[1] = 0x%04x\n",
+ ha->host_no, __func__, mbox_cmd[0],
+ mbox_sts[0], mbox_sts[1]));
+ }
+ return status;
+}
+
+/**
+ * qla4xxx_req_template_size - Get minidump template size from firmware.
+ * @ha: Pointer to host adapter structure.
+ **/
+int qla4xxx_req_template_size(struct scsi_qla_host *ha)
+{
+ uint32_t mbox_cmd[MBOX_REG_COUNT];
+ uint32_t mbox_sts[MBOX_REG_COUNT];
+ int status;
+
+ memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+ memset(&mbox_sts, 0, sizeof(mbox_sts));
+
+ mbox_cmd[0] = MBOX_CMD_MINIDUMP;
+ mbox_cmd[1] = MINIDUMP_GET_SIZE_SUBCOMMAND;
+
+ status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 8, &mbox_cmd[0],
+ &mbox_sts[0]);
+ if (status == QLA_SUCCESS) {
+ ha->fw_dump_tmplt_size = mbox_sts[1];
+ DEBUG2(ql4_printk(KERN_INFO, ha,
+ "%s: sts[0]=0x%04x, template size=0x%04x, size_cm_02=0x%04x, size_cm_04=0x%04x, size_cm_08=0x%04x, size_cm_10=0x%04x, size_cm_FF=0x%04x, version=0x%04x\n",
+ __func__, mbox_sts[0], mbox_sts[1],
+ mbox_sts[2], mbox_sts[3], mbox_sts[4],
+ mbox_sts[5], mbox_sts[6], mbox_sts[7]));
+ if (ha->fw_dump_tmplt_size == 0)
+ status = QLA_ERROR;
+ } else {
+ ql4_printk(KERN_WARNING, ha,
+ "%s: Error sts[0]=0x%04x, mbx[1]=0x%04x\n",
+ __func__, mbox_sts[0], mbox_sts[1]);
+ status = QLA_ERROR;
+ }
+
+ return status;
+}
+
void qla4xxx_mailbox_premature_completion(struct scsi_qla_host *ha)
{
set_bit(AF_FW_RECOVERY, &ha->flags);
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/pci.h>
+#include <linux/ratelimit.h>
#include "ql4_def.h"
#include "ql4_glbl.h"
return data;
}
+/* Minidump related functions */
+static int qla4_8xxx_md_rw_32(struct scsi_qla_host *ha, uint32_t off,
+ u32 data, uint8_t flag)
+{
+ uint32_t win_read, off_value, rval = QLA_SUCCESS;
+
+ off_value = off & 0xFFFF0000;
+ writel(off_value, (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
+
+ /* Read back value to make sure write has gone through before trying
+ * to use it.
+ */
+ win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
+ if (win_read != off_value) {
+ DEBUG2(ql4_printk(KERN_INFO, ha,
+ "%s: Written (0x%x) != Read (0x%x), off=0x%x\n",
+ __func__, off_value, win_read, off));
+ return QLA_ERROR;
+ }
+
+ off_value = off & 0x0000FFFF;
+
+ if (flag)
+ writel(data, (void __iomem *)(off_value + CRB_INDIRECT_2M +
+ ha->nx_pcibase));
+ else
+ rval = readl((void __iomem *)(off_value + CRB_INDIRECT_2M +
+ ha->nx_pcibase));
+
+ return rval;
+}
+
#define CRB_WIN_LOCK_TIMEOUT 100000000
int qla4_8xxx_crb_win_lock(struct scsi_qla_host *ha)
}
if (j >= MAX_CTL_CHECK) {
- if (printk_ratelimit())
- ql4_printk(KERN_ERR, ha,
- "failed to read through agent\n");
+ printk_ratelimited(KERN_ERR
+ "%s: failed to read through agent\n",
+ __func__);
break;
}
if (j >= MAX_CTL_CHECK) {
if (printk_ratelimit())
ql4_printk(KERN_ERR, ha,
- "failed to write through agent\n");
+ "%s: failed to read through agent\n",
+ __func__);
ret = -1;
break;
}
drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
drv_active |= (1 << (ha->func_num * 4));
+ ql4_printk(KERN_INFO, ha, "%s(%ld): drv_active: 0x%08x\n",
+ __func__, ha->host_no, drv_active);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
}
drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
drv_active &= ~(1 << (ha->func_num * 4));
+ ql4_printk(KERN_INFO, ha, "%s(%ld): drv_active: 0x%08x\n",
+ __func__, ha->host_no, drv_active);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
}
drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
drv_state |= (1 << (ha->func_num * 4));
+ ql4_printk(KERN_INFO, ha, "%s(%ld): drv_state: 0x%08x\n",
+ __func__, ha->host_no, drv_state);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
}
drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
drv_state &= ~(1 << (ha->func_num * 4));
+ ql4_printk(KERN_INFO, ha, "%s(%ld): drv_state: 0x%08x\n",
+ __func__, ha->host_no, drv_state);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
}
qla4_8xxx_rom_unlock(ha);
}
+static void qla4_8xxx_minidump_process_rdcrb(struct scsi_qla_host *ha,
+ struct qla82xx_minidump_entry_hdr *entry_hdr,
+ uint32_t **d_ptr)
+{
+ uint32_t r_addr, r_stride, loop_cnt, i, r_value;
+ struct qla82xx_minidump_entry_crb *crb_hdr;
+ uint32_t *data_ptr = *d_ptr;
+
+ DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
+ crb_hdr = (struct qla82xx_minidump_entry_crb *)entry_hdr;
+ r_addr = crb_hdr->addr;
+ r_stride = crb_hdr->crb_strd.addr_stride;
+ loop_cnt = crb_hdr->op_count;
+
+ for (i = 0; i < loop_cnt; i++) {
+ r_value = qla4_8xxx_md_rw_32(ha, r_addr, 0, 0);
+ *data_ptr++ = cpu_to_le32(r_addr);
+ *data_ptr++ = cpu_to_le32(r_value);
+ r_addr += r_stride;
+ }
+ *d_ptr = data_ptr;
+}
+
+static int qla4_8xxx_minidump_process_l2tag(struct scsi_qla_host *ha,
+ struct qla82xx_minidump_entry_hdr *entry_hdr,
+ uint32_t **d_ptr)
+{
+ uint32_t addr, r_addr, c_addr, t_r_addr;
+ uint32_t i, k, loop_count, t_value, r_cnt, r_value;
+ unsigned long p_wait, w_time, p_mask;
+ uint32_t c_value_w, c_value_r;
+ struct qla82xx_minidump_entry_cache *cache_hdr;
+ int rval = QLA_ERROR;
+ uint32_t *data_ptr = *d_ptr;
+
+ DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
+ cache_hdr = (struct qla82xx_minidump_entry_cache *)entry_hdr;
+
+ loop_count = cache_hdr->op_count;
+ r_addr = cache_hdr->read_addr;
+ c_addr = cache_hdr->control_addr;
+ c_value_w = cache_hdr->cache_ctrl.write_value;
+
+ t_r_addr = cache_hdr->tag_reg_addr;
+ t_value = cache_hdr->addr_ctrl.init_tag_value;
+ r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
+ p_wait = cache_hdr->cache_ctrl.poll_wait;
+ p_mask = cache_hdr->cache_ctrl.poll_mask;
+
+ for (i = 0; i < loop_count; i++) {
+ qla4_8xxx_md_rw_32(ha, t_r_addr, t_value, 1);
+
+ if (c_value_w)
+ qla4_8xxx_md_rw_32(ha, c_addr, c_value_w, 1);
+
+ if (p_mask) {
+ w_time = jiffies + p_wait;
+ do {
+ c_value_r = qla4_8xxx_md_rw_32(ha, c_addr,
+ 0, 0);
+ if ((c_value_r & p_mask) == 0) {
+ break;
+ } else if (time_after_eq(jiffies, w_time)) {
+ /* capturing dump failed */
+ return rval;
+ }
+ } while (1);
+ }
+
+ addr = r_addr;
+ for (k = 0; k < r_cnt; k++) {
+ r_value = qla4_8xxx_md_rw_32(ha, addr, 0, 0);
+ *data_ptr++ = cpu_to_le32(r_value);
+ addr += cache_hdr->read_ctrl.read_addr_stride;
+ }
+
+ t_value += cache_hdr->addr_ctrl.tag_value_stride;
+ }
+ *d_ptr = data_ptr;
+ return QLA_SUCCESS;
+}
+
+static int qla4_8xxx_minidump_process_control(struct scsi_qla_host *ha,
+ struct qla82xx_minidump_entry_hdr *entry_hdr)
+{
+ struct qla82xx_minidump_entry_crb *crb_entry;
+ uint32_t read_value, opcode, poll_time, addr, index, rval = QLA_SUCCESS;
+ uint32_t crb_addr;
+ unsigned long wtime;
+ struct qla4_8xxx_minidump_template_hdr *tmplt_hdr;
+ int i;
+
+ DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
+ tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
+ ha->fw_dump_tmplt_hdr;
+ crb_entry = (struct qla82xx_minidump_entry_crb *)entry_hdr;
+
+ crb_addr = crb_entry->addr;
+ for (i = 0; i < crb_entry->op_count; i++) {
+ opcode = crb_entry->crb_ctrl.opcode;
+ if (opcode & QLA82XX_DBG_OPCODE_WR) {
+ qla4_8xxx_md_rw_32(ha, crb_addr,
+ crb_entry->value_1, 1);
+ opcode &= ~QLA82XX_DBG_OPCODE_WR;
+ }
+ if (opcode & QLA82XX_DBG_OPCODE_RW) {
+ read_value = qla4_8xxx_md_rw_32(ha, crb_addr, 0, 0);
+ qla4_8xxx_md_rw_32(ha, crb_addr, read_value, 1);
+ opcode &= ~QLA82XX_DBG_OPCODE_RW;
+ }
+ if (opcode & QLA82XX_DBG_OPCODE_AND) {
+ read_value = qla4_8xxx_md_rw_32(ha, crb_addr, 0, 0);
+ read_value &= crb_entry->value_2;
+ opcode &= ~QLA82XX_DBG_OPCODE_AND;
+ if (opcode & QLA82XX_DBG_OPCODE_OR) {
+ read_value |= crb_entry->value_3;
+ opcode &= ~QLA82XX_DBG_OPCODE_OR;
+ }
+ qla4_8xxx_md_rw_32(ha, crb_addr, read_value, 1);
+ }
+ if (opcode & QLA82XX_DBG_OPCODE_OR) {
+ read_value = qla4_8xxx_md_rw_32(ha, crb_addr, 0, 0);
+ read_value |= crb_entry->value_3;
+ qla4_8xxx_md_rw_32(ha, crb_addr, read_value, 1);
+ opcode &= ~QLA82XX_DBG_OPCODE_OR;
+ }
+ if (opcode & QLA82XX_DBG_OPCODE_POLL) {
+ poll_time = crb_entry->crb_strd.poll_timeout;
+ wtime = jiffies + poll_time;
+ read_value = qla4_8xxx_md_rw_32(ha, crb_addr, 0, 0);
+
+ do {
+ if ((read_value & crb_entry->value_2) ==
+ crb_entry->value_1)
+ break;
+ else if (time_after_eq(jiffies, wtime)) {
+ /* capturing dump failed */
+ rval = QLA_ERROR;
+ break;
+ } else
+ read_value = qla4_8xxx_md_rw_32(ha,
+ crb_addr, 0, 0);
+ } while (1);
+ opcode &= ~QLA82XX_DBG_OPCODE_POLL;
+ }
+
+ if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
+ if (crb_entry->crb_strd.state_index_a) {
+ index = crb_entry->crb_strd.state_index_a;
+ addr = tmplt_hdr->saved_state_array[index];
+ } else {
+ addr = crb_addr;
+ }
+
+ read_value = qla4_8xxx_md_rw_32(ha, addr, 0, 0);
+ index = crb_entry->crb_ctrl.state_index_v;
+ tmplt_hdr->saved_state_array[index] = read_value;
+ opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
+ }
+
+ if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
+ if (crb_entry->crb_strd.state_index_a) {
+ index = crb_entry->crb_strd.state_index_a;
+ addr = tmplt_hdr->saved_state_array[index];
+ } else {
+ addr = crb_addr;
+ }
+
+ if (crb_entry->crb_ctrl.state_index_v) {
+ index = crb_entry->crb_ctrl.state_index_v;
+ read_value =
+ tmplt_hdr->saved_state_array[index];
+ } else {
+ read_value = crb_entry->value_1;
+ }
+
+ qla4_8xxx_md_rw_32(ha, addr, read_value, 1);
+ opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
+ }
+
+ if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
+ index = crb_entry->crb_ctrl.state_index_v;
+ read_value = tmplt_hdr->saved_state_array[index];
+ read_value <<= crb_entry->crb_ctrl.shl;
+ read_value >>= crb_entry->crb_ctrl.shr;
+ if (crb_entry->value_2)
+ read_value &= crb_entry->value_2;
+ read_value |= crb_entry->value_3;
+ read_value += crb_entry->value_1;
+ tmplt_hdr->saved_state_array[index] = read_value;
+ opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
+ }
+ crb_addr += crb_entry->crb_strd.addr_stride;
+ }
+ DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s\n", __func__));
+ return rval;
+}
+
+static void qla4_8xxx_minidump_process_rdocm(struct scsi_qla_host *ha,
+ struct qla82xx_minidump_entry_hdr *entry_hdr,
+ uint32_t **d_ptr)
+{
+ uint32_t r_addr, r_stride, loop_cnt, i, r_value;
+ struct qla82xx_minidump_entry_rdocm *ocm_hdr;
+ uint32_t *data_ptr = *d_ptr;
+
+ DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
+ ocm_hdr = (struct qla82xx_minidump_entry_rdocm *)entry_hdr;
+ r_addr = ocm_hdr->read_addr;
+ r_stride = ocm_hdr->read_addr_stride;
+ loop_cnt = ocm_hdr->op_count;
+
+ DEBUG2(ql4_printk(KERN_INFO, ha,
+ "[%s]: r_addr: 0x%x, r_stride: 0x%x, loop_cnt: 0x%x\n",
+ __func__, r_addr, r_stride, loop_cnt));
+
+ for (i = 0; i < loop_cnt; i++) {
+ r_value = readl((void __iomem *)(r_addr + ha->nx_pcibase));
+ *data_ptr++ = cpu_to_le32(r_value);
+ r_addr += r_stride;
+ }
+ DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s datacount: 0x%lx\n",
+ __func__, (loop_cnt * sizeof(uint32_t))));
+ *d_ptr = data_ptr;
+}
+
+static void qla4_8xxx_minidump_process_rdmux(struct scsi_qla_host *ha,
+ struct qla82xx_minidump_entry_hdr *entry_hdr,
+ uint32_t **d_ptr)
+{
+ uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
+ struct qla82xx_minidump_entry_mux *mux_hdr;
+ uint32_t *data_ptr = *d_ptr;
+
+ DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
+ mux_hdr = (struct qla82xx_minidump_entry_mux *)entry_hdr;
+ r_addr = mux_hdr->read_addr;
+ s_addr = mux_hdr->select_addr;
+ s_stride = mux_hdr->select_value_stride;
+ s_value = mux_hdr->select_value;
+ loop_cnt = mux_hdr->op_count;
+
+ for (i = 0; i < loop_cnt; i++) {
+ qla4_8xxx_md_rw_32(ha, s_addr, s_value, 1);
+ r_value = qla4_8xxx_md_rw_32(ha, r_addr, 0, 0);
+ *data_ptr++ = cpu_to_le32(s_value);
+ *data_ptr++ = cpu_to_le32(r_value);
+ s_value += s_stride;
+ }
+ *d_ptr = data_ptr;
+}
+
+static void qla4_8xxx_minidump_process_l1cache(struct scsi_qla_host *ha,
+ struct qla82xx_minidump_entry_hdr *entry_hdr,
+ uint32_t **d_ptr)
+{
+ uint32_t addr, r_addr, c_addr, t_r_addr;
+ uint32_t i, k, loop_count, t_value, r_cnt, r_value;
+ uint32_t c_value_w;
+ struct qla82xx_minidump_entry_cache *cache_hdr;
+ uint32_t *data_ptr = *d_ptr;
+
+ cache_hdr = (struct qla82xx_minidump_entry_cache *)entry_hdr;
+ loop_count = cache_hdr->op_count;
+ r_addr = cache_hdr->read_addr;
+ c_addr = cache_hdr->control_addr;
+ c_value_w = cache_hdr->cache_ctrl.write_value;
+
+ t_r_addr = cache_hdr->tag_reg_addr;
+ t_value = cache_hdr->addr_ctrl.init_tag_value;
+ r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
+
+ for (i = 0; i < loop_count; i++) {
+ qla4_8xxx_md_rw_32(ha, t_r_addr, t_value, 1);
+ qla4_8xxx_md_rw_32(ha, c_addr, c_value_w, 1);
+ addr = r_addr;
+ for (k = 0; k < r_cnt; k++) {
+ r_value = qla4_8xxx_md_rw_32(ha, addr, 0, 0);
+ *data_ptr++ = cpu_to_le32(r_value);
+ addr += cache_hdr->read_ctrl.read_addr_stride;
+ }
+ t_value += cache_hdr->addr_ctrl.tag_value_stride;
+ }
+ *d_ptr = data_ptr;
+}
+
+static void qla4_8xxx_minidump_process_queue(struct scsi_qla_host *ha,
+ struct qla82xx_minidump_entry_hdr *entry_hdr,
+ uint32_t **d_ptr)
+{
+ uint32_t s_addr, r_addr;
+ uint32_t r_stride, r_value, r_cnt, qid = 0;
+ uint32_t i, k, loop_cnt;
+ struct qla82xx_minidump_entry_queue *q_hdr;
+ uint32_t *data_ptr = *d_ptr;
+
+ DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
+ q_hdr = (struct qla82xx_minidump_entry_queue *)entry_hdr;
+ s_addr = q_hdr->select_addr;
+ r_cnt = q_hdr->rd_strd.read_addr_cnt;
+ r_stride = q_hdr->rd_strd.read_addr_stride;
+ loop_cnt = q_hdr->op_count;
+
+ for (i = 0; i < loop_cnt; i++) {
+ qla4_8xxx_md_rw_32(ha, s_addr, qid, 1);
+ r_addr = q_hdr->read_addr;
+ for (k = 0; k < r_cnt; k++) {
+ r_value = qla4_8xxx_md_rw_32(ha, r_addr, 0, 0);
+ *data_ptr++ = cpu_to_le32(r_value);
+ r_addr += r_stride;
+ }
+ qid += q_hdr->q_strd.queue_id_stride;
+ }
+ *d_ptr = data_ptr;
+}
+
+#define MD_DIRECT_ROM_WINDOW 0x42110030
+#define MD_DIRECT_ROM_READ_BASE 0x42150000
+
+static void qla4_8xxx_minidump_process_rdrom(struct scsi_qla_host *ha,
+ struct qla82xx_minidump_entry_hdr *entry_hdr,
+ uint32_t **d_ptr)
+{
+ uint32_t r_addr, r_value;
+ uint32_t i, loop_cnt;
+ struct qla82xx_minidump_entry_rdrom *rom_hdr;
+ uint32_t *data_ptr = *d_ptr;
+
+ DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
+ rom_hdr = (struct qla82xx_minidump_entry_rdrom *)entry_hdr;
+ r_addr = rom_hdr->read_addr;
+ loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
+
+ DEBUG2(ql4_printk(KERN_INFO, ha,
+ "[%s]: flash_addr: 0x%x, read_data_size: 0x%x\n",
+ __func__, r_addr, loop_cnt));
+
+ for (i = 0; i < loop_cnt; i++) {
+ qla4_8xxx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW,
+ (r_addr & 0xFFFF0000), 1);
+ r_value = qla4_8xxx_md_rw_32(ha,
+ MD_DIRECT_ROM_READ_BASE +
+ (r_addr & 0x0000FFFF), 0, 0);
+ *data_ptr++ = cpu_to_le32(r_value);
+ r_addr += sizeof(uint32_t);
+ }
+ *d_ptr = data_ptr;
+}
+
+#define MD_MIU_TEST_AGT_CTRL 0x41000090
+#define MD_MIU_TEST_AGT_ADDR_LO 0x41000094
+#define MD_MIU_TEST_AGT_ADDR_HI 0x41000098
+
+static int qla4_8xxx_minidump_process_rdmem(struct scsi_qla_host *ha,
+ struct qla82xx_minidump_entry_hdr *entry_hdr,
+ uint32_t **d_ptr)
+{
+ uint32_t r_addr, r_value, r_data;
+ uint32_t i, j, loop_cnt;
+ struct qla82xx_minidump_entry_rdmem *m_hdr;
+ unsigned long flags;
+ uint32_t *data_ptr = *d_ptr;
+
+ DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
+ m_hdr = (struct qla82xx_minidump_entry_rdmem *)entry_hdr;
+ r_addr = m_hdr->read_addr;
+ loop_cnt = m_hdr->read_data_size/16;
+
+ DEBUG2(ql4_printk(KERN_INFO, ha,
+ "[%s]: Read addr: 0x%x, read_data_size: 0x%x\n",
+ __func__, r_addr, m_hdr->read_data_size));
+
+ if (r_addr & 0xf) {
+ DEBUG2(ql4_printk(KERN_INFO, ha,
+ "[%s]: Read addr 0x%x not 16 bytes alligned\n",
+ __func__, r_addr));
+ return QLA_ERROR;
+ }
+
+ if (m_hdr->read_data_size % 16) {
+ DEBUG2(ql4_printk(KERN_INFO, ha,
+ "[%s]: Read data[0x%x] not multiple of 16 bytes\n",
+ __func__, m_hdr->read_data_size));
+ return QLA_ERROR;
+ }
+
+ DEBUG2(ql4_printk(KERN_INFO, ha,
+ "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
+ __func__, r_addr, m_hdr->read_data_size, loop_cnt));
+
+ write_lock_irqsave(&ha->hw_lock, flags);
+ for (i = 0; i < loop_cnt; i++) {
+ qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_LO, r_addr, 1);
+ r_value = 0;
+ qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_HI, r_value, 1);
+ r_value = MIU_TA_CTL_ENABLE;
+ qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
+ r_value = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
+ qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
+
+ for (j = 0; j < MAX_CTL_CHECK; j++) {
+ r_value = qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL,
+ 0, 0);
+ if ((r_value & MIU_TA_CTL_BUSY) == 0)
+ break;
+ }
+
+ if (j >= MAX_CTL_CHECK) {
+ printk_ratelimited(KERN_ERR
+ "%s: failed to read through agent\n",
+ __func__);
+ write_unlock_irqrestore(&ha->hw_lock, flags);
+ return QLA_SUCCESS;
+ }
+
+ for (j = 0; j < 4; j++) {
+ r_data = qla4_8xxx_md_rw_32(ha,
+ MD_MIU_TEST_AGT_RDDATA[j],
+ 0, 0);
+ *data_ptr++ = cpu_to_le32(r_data);
+ }
+
+ r_addr += 16;
+ }
+ write_unlock_irqrestore(&ha->hw_lock, flags);
+
+ DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s datacount: 0x%x\n",
+ __func__, (loop_cnt * 16)));
+
+ *d_ptr = data_ptr;
+ return QLA_SUCCESS;
+}
+
+static void ql4_8xxx_mark_entry_skipped(struct scsi_qla_host *ha,
+ struct qla82xx_minidump_entry_hdr *entry_hdr,
+ int index)
+{
+ entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
+ DEBUG2(ql4_printk(KERN_INFO, ha,
+ "scsi(%ld): Skipping entry[%d]: ETYPE[0x%x]-ELEVEL[0x%x]\n",
+ ha->host_no, index, entry_hdr->entry_type,
+ entry_hdr->d_ctrl.entry_capture_mask));
+}
+
+/**
+ * qla82xx_collect_md_data - Retrieve firmware minidump data.
+ * @ha: pointer to adapter structure
+ **/
+static int qla4_8xxx_collect_md_data(struct scsi_qla_host *ha)
+{
+ int num_entry_hdr = 0;
+ struct qla82xx_minidump_entry_hdr *entry_hdr;
+ struct qla4_8xxx_minidump_template_hdr *tmplt_hdr;
+ uint32_t *data_ptr;
+ uint32_t data_collected = 0;
+ int i, rval = QLA_ERROR;
+ uint64_t now;
+ uint32_t timestamp;
+
+ if (!ha->fw_dump) {
+ ql4_printk(KERN_INFO, ha, "%s(%ld) No buffer to dump\n",
+ __func__, ha->host_no);
+ return rval;
+ }
+
+ tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
+ ha->fw_dump_tmplt_hdr;
+ data_ptr = (uint32_t *)((uint8_t *)ha->fw_dump +
+ ha->fw_dump_tmplt_size);
+ data_collected += ha->fw_dump_tmplt_size;
+
+ num_entry_hdr = tmplt_hdr->num_of_entries;
+ ql4_printk(KERN_INFO, ha, "[%s]: starting data ptr: %p\n",
+ __func__, data_ptr);
+ ql4_printk(KERN_INFO, ha,
+ "[%s]: no of entry headers in Template: 0x%x\n",
+ __func__, num_entry_hdr);
+ ql4_printk(KERN_INFO, ha, "[%s]: Capture Mask obtained: 0x%x\n",
+ __func__, ha->fw_dump_capture_mask);
+ ql4_printk(KERN_INFO, ha, "[%s]: Total_data_size 0x%x, %d obtained\n",
+ __func__, ha->fw_dump_size, ha->fw_dump_size);
+
+ /* Update current timestamp before taking dump */
+ now = get_jiffies_64();
+ timestamp = (u32)(jiffies_to_msecs(now) / 1000);
+ tmplt_hdr->driver_timestamp = timestamp;
+
+ entry_hdr = (struct qla82xx_minidump_entry_hdr *)
+ (((uint8_t *)ha->fw_dump_tmplt_hdr) +
+ tmplt_hdr->first_entry_offset);
+
+ /* Walk through the entry headers - validate/perform required action */
+ for (i = 0; i < num_entry_hdr; i++) {
+ if (data_collected >= ha->fw_dump_size) {
+ ql4_printk(KERN_INFO, ha,
+ "Data collected: [0x%x], Total Dump size: [0x%x]\n",
+ data_collected, ha->fw_dump_size);
+ return rval;
+ }
+
+ if (!(entry_hdr->d_ctrl.entry_capture_mask &
+ ha->fw_dump_capture_mask)) {
+ entry_hdr->d_ctrl.driver_flags |=
+ QLA82XX_DBG_SKIPPED_FLAG;
+ goto skip_nxt_entry;
+ }
+
+ DEBUG2(ql4_printk(KERN_INFO, ha,
+ "Data collected: [0x%x], Dump size left:[0x%x]\n",
+ data_collected,
+ (ha->fw_dump_size - data_collected)));
+
+ /* Decode the entry type and take required action to capture
+ * debug data
+ */
+ switch (entry_hdr->entry_type) {
+ case QLA82XX_RDEND:
+ ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
+ break;
+ case QLA82XX_CNTRL:
+ rval = qla4_8xxx_minidump_process_control(ha,
+ entry_hdr);
+ if (rval != QLA_SUCCESS) {
+ ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
+ goto md_failed;
+ }
+ break;
+ case QLA82XX_RDCRB:
+ qla4_8xxx_minidump_process_rdcrb(ha, entry_hdr,
+ &data_ptr);
+ break;
+ case QLA82XX_RDMEM:
+ rval = qla4_8xxx_minidump_process_rdmem(ha, entry_hdr,
+ &data_ptr);
+ if (rval != QLA_SUCCESS) {
+ ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
+ goto md_failed;
+ }
+ break;
+ case QLA82XX_BOARD:
+ case QLA82XX_RDROM:
+ qla4_8xxx_minidump_process_rdrom(ha, entry_hdr,
+ &data_ptr);
+ break;
+ case QLA82XX_L2DTG:
+ case QLA82XX_L2ITG:
+ case QLA82XX_L2DAT:
+ case QLA82XX_L2INS:
+ rval = qla4_8xxx_minidump_process_l2tag(ha, entry_hdr,
+ &data_ptr);
+ if (rval != QLA_SUCCESS) {
+ ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
+ goto md_failed;
+ }
+ break;
+ case QLA82XX_L1DAT:
+ case QLA82XX_L1INS:
+ qla4_8xxx_minidump_process_l1cache(ha, entry_hdr,
+ &data_ptr);
+ break;
+ case QLA82XX_RDOCM:
+ qla4_8xxx_minidump_process_rdocm(ha, entry_hdr,
+ &data_ptr);
+ break;
+ case QLA82XX_RDMUX:
+ qla4_8xxx_minidump_process_rdmux(ha, entry_hdr,
+ &data_ptr);
+ break;
+ case QLA82XX_QUEUE:
+ qla4_8xxx_minidump_process_queue(ha, entry_hdr,
+ &data_ptr);
+ break;
+ case QLA82XX_RDNOP:
+ default:
+ ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
+ break;
+ }
+
+ data_collected = (uint8_t *)data_ptr -
+ ((uint8_t *)((uint8_t *)ha->fw_dump +
+ ha->fw_dump_tmplt_size));
+skip_nxt_entry:
+ /* next entry in the template */
+ entry_hdr = (struct qla82xx_minidump_entry_hdr *)
+ (((uint8_t *)entry_hdr) +
+ entry_hdr->entry_size);
+ }
+
+ if ((data_collected + ha->fw_dump_tmplt_size) != ha->fw_dump_size) {
+ ql4_printk(KERN_INFO, ha,
+ "Dump data mismatch: Data collected: [0x%x], total_data_size:[0x%x]\n",
+ data_collected, ha->fw_dump_size);
+ goto md_failed;
+ }
+
+ DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s Last entry: 0x%x\n",
+ __func__, i));
+md_failed:
+ return rval;
+}
+
+/**
+ * qla4_8xxx_uevent_emit - Send uevent when the firmware dump is ready.
+ * @ha: pointer to adapter structure
+ **/
+static void qla4_8xxx_uevent_emit(struct scsi_qla_host *ha, u32 code)
+{
+ char event_string[40];
+ char *envp[] = { event_string, NULL };
+
+ switch (code) {
+ case QL4_UEVENT_CODE_FW_DUMP:
+ snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
+ ha->host_no);
+ break;
+ default:
+ /*do nothing*/
+ break;
+ }
+
+ kobject_uevent_env(&(&ha->pdev->dev)->kobj, KOBJ_CHANGE, envp);
+}
+
/**
* qla4_8xxx_device_bootstrap - Initialize device, set DEV_READY, start fw
* @ha: pointer to adapter structure
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, QLA82XX_IDC_VERSION);
qla4_8xxx_idc_unlock(ha);
+ if (ql4xenablemd && test_bit(AF_FW_RECOVERY, &ha->flags) &&
+ !test_and_set_bit(AF_82XX_FW_DUMPED, &ha->flags)) {
+ if (!qla4_8xxx_collect_md_data(ha)) {
+ qla4_8xxx_uevent_emit(ha, QL4_UEVENT_CODE_FW_DUMP);
+ } else {
+ ql4_printk(KERN_INFO, ha, "Unable to collect minidump\n");
+ clear_bit(AF_82XX_FW_DUMPED, &ha->flags);
+ }
+ }
rval = qla4_8xxx_try_start_fw(ha);
qla4_8xxx_idc_lock(ha);
qla4_8xxx_need_reset_handler(struct scsi_qla_host *ha)
{
uint32_t dev_state, drv_state, drv_active;
+ uint32_t active_mask = 0xFFFFFFFF;
unsigned long reset_timeout;
ql4_printk(KERN_INFO, ha,
qla4_8xxx_idc_lock(ha);
}
- qla4_8xxx_set_rst_ready(ha);
+ if (!test_bit(AF_82XX_RST_OWNER, &ha->flags)) {
+ DEBUG2(ql4_printk(KERN_INFO, ha,
+ "%s(%ld): reset acknowledged\n",
+ __func__, ha->host_no));
+ qla4_8xxx_set_rst_ready(ha);
+ } else {
+ active_mask = (~(1 << (ha->func_num * 4)));
+ }
/* wait for 10 seconds for reset ack from all functions */
reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
"%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n",
__func__, ha->host_no, drv_state, drv_active);
- while (drv_state != drv_active) {
+ while (drv_state != (drv_active & active_mask)) {
if (time_after_eq(jiffies, reset_timeout)) {
- printk("%s: RESET TIMEOUT!\n", DRIVER_NAME);
+ ql4_printk(KERN_INFO, ha,
+ "%s: RESET TIMEOUT! drv_state: 0x%08x, drv_active: 0x%08x\n",
+ DRIVER_NAME, drv_state, drv_active);
break;
}
+ /*
+ * When reset_owner times out, check which functions
+ * acked/did not ack
+ */
+ if (test_bit(AF_82XX_RST_OWNER, &ha->flags)) {
+ ql4_printk(KERN_INFO, ha,
+ "%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n",
+ __func__, ha->host_no, drv_state,
+ drv_active);
+ }
qla4_8xxx_idc_unlock(ha);
msleep(1000);
qla4_8xxx_idc_lock(ha);
drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
}
+ /* Clear RESET OWNER as we are not going to use it any further */
+ clear_bit(AF_82XX_RST_OWNER, &ha->flags);
+
dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
- ql4_printk(KERN_INFO, ha, "3:Device state is 0x%x = %s\n", dev_state,
- dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
+ ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n", dev_state,
+ dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
/* Force to DEV_COLD unless someone else is starting a reset */
if (dev_state != QLA82XX_DEV_INITIALIZING) {
ql4_printk(KERN_INFO, ha, "HW State: COLD/RE-INIT\n");
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_COLD);
+ qla4_8xxx_set_rst_ready(ha);
}
}
}
dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
- ql4_printk(KERN_INFO, ha, "1:Device state is 0x%x = %s\n", dev_state,
- dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
+ DEBUG2(ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n",
+ dev_state, dev_state < MAX_STATES ?
+ qdev_state[dev_state] : "Unknown"));
/* wait for 30 seconds for device to go ready */
dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
while (1) {
if (time_after_eq(jiffies, dev_init_timeout)) {
- ql4_printk(KERN_WARNING, ha, "Device init failed!\n");
+ ql4_printk(KERN_WARNING, ha,
+ "%s: Device Init Failed 0x%x = %s\n",
+ DRIVER_NAME,
+ dev_state, dev_state < MAX_STATES ?
+ qdev_state[dev_state] : "Unknown");
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
QLA82XX_DEV_FAILED);
}
dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
- ql4_printk(KERN_INFO, ha,
- "2:Device state is 0x%x = %s\n", dev_state,
- dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
+ ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n",
+ dev_state, dev_state < MAX_STATES ?
+ qdev_state[dev_state] : "Unknown");
/* NOTE: Make sure idc unlocked upon exit of switch statement */
switch (dev_state) {
ql4_printk(KERN_INFO, ha, "HW State: NEED RESET\n");
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
QLA82XX_DEV_NEED_RESET);
+ set_bit(AF_82XX_RST_OWNER, &ha->flags);
} else
ql4_printk(KERN_INFO, ha, "HW State: DEVICE INITIALIZING\n");
qla4_8xxx_clear_rst_ready(ha);
qla4_8xxx_idc_unlock(ha);
- if (rval == QLA_SUCCESS)
+ if (rval == QLA_SUCCESS) {
+ ql4_printk(KERN_INFO, ha, "Clearing AF_RECOVERY in qla4_8xxx_isp_reset\n");
clear_bit(AF_FW_RECOVERY, &ha->flags);
+ }
return rval;
}
#define MIU_TEST_AGT_WRDATA_UPPER_LO (0x0b0)
#define MIU_TEST_AGT_WRDATA_UPPER_HI (0x0b4)
+/* Minidump related */
+
+/* Entry Type Defines */
+#define QLA82XX_RDNOP 0
+#define QLA82XX_RDCRB 1
+#define QLA82XX_RDMUX 2
+#define QLA82XX_QUEUE 3
+#define QLA82XX_BOARD 4
+#define QLA82XX_RDOCM 6
+#define QLA82XX_PREGS 7
+#define QLA82XX_L1DTG 8
+#define QLA82XX_L1ITG 9
+#define QLA82XX_L1DAT 11
+#define QLA82XX_L1INS 12
+#define QLA82XX_L2DTG 21
+#define QLA82XX_L2ITG 22
+#define QLA82XX_L2DAT 23
+#define QLA82XX_L2INS 24
+#define QLA82XX_RDROM 71
+#define QLA82XX_RDMEM 72
+#define QLA82XX_CNTRL 98
+#define QLA82XX_RDEND 255
+
+/* Opcodes for Control Entries.
+ * These Flags are bit fields.
+ */
+#define QLA82XX_DBG_OPCODE_WR 0x01
+#define QLA82XX_DBG_OPCODE_RW 0x02
+#define QLA82XX_DBG_OPCODE_AND 0x04
+#define QLA82XX_DBG_OPCODE_OR 0x08
+#define QLA82XX_DBG_OPCODE_POLL 0x10
+#define QLA82XX_DBG_OPCODE_RDSTATE 0x20
+#define QLA82XX_DBG_OPCODE_WRSTATE 0x40
+#define QLA82XX_DBG_OPCODE_MDSTATE 0x80
+
+/* Driver Flags */
+#define QLA82XX_DBG_SKIPPED_FLAG 0x80 /* driver skipped this entry */
+#define QLA82XX_DBG_SIZE_ERR_FLAG 0x40 /* Entry vs Capture size
+ * mismatch */
+
+/* Driver_code is for driver to write some info about the entry
+ * currently not used.
+ */
+struct qla82xx_minidump_entry_hdr {
+ uint32_t entry_type;
+ uint32_t entry_size;
+ uint32_t entry_capture_size;
+ struct {
+ uint8_t entry_capture_mask;
+ uint8_t entry_code;
+ uint8_t driver_code;
+ uint8_t driver_flags;
+ } d_ctrl;
+};
+
+/* Read CRB entry header */
+struct qla82xx_minidump_entry_crb {
+ struct qla82xx_minidump_entry_hdr h;
+ uint32_t addr;
+ struct {
+ uint8_t addr_stride;
+ uint8_t state_index_a;
+ uint16_t poll_timeout;
+ } crb_strd;
+ uint32_t data_size;
+ uint32_t op_count;
+
+ struct {
+ uint8_t opcode;
+ uint8_t state_index_v;
+ uint8_t shl;
+ uint8_t shr;
+ } crb_ctrl;
+
+ uint32_t value_1;
+ uint32_t value_2;
+ uint32_t value_3;
+};
+
+struct qla82xx_minidump_entry_cache {
+ struct qla82xx_minidump_entry_hdr h;
+ uint32_t tag_reg_addr;
+ struct {
+ uint16_t tag_value_stride;
+ uint16_t init_tag_value;
+ } addr_ctrl;
+ uint32_t data_size;
+ uint32_t op_count;
+ uint32_t control_addr;
+ struct {
+ uint16_t write_value;
+ uint8_t poll_mask;
+ uint8_t poll_wait;
+ } cache_ctrl;
+ uint32_t read_addr;
+ struct {
+ uint8_t read_addr_stride;
+ uint8_t read_addr_cnt;
+ uint16_t rsvd_1;
+ } read_ctrl;
+};
+
+/* Read OCM */
+struct qla82xx_minidump_entry_rdocm {
+ struct qla82xx_minidump_entry_hdr h;
+ uint32_t rsvd_0;
+ uint32_t rsvd_1;
+ uint32_t data_size;
+ uint32_t op_count;
+ uint32_t rsvd_2;
+ uint32_t rsvd_3;
+ uint32_t read_addr;
+ uint32_t read_addr_stride;
+};
+
+/* Read Memory */
+struct qla82xx_minidump_entry_rdmem {
+ struct qla82xx_minidump_entry_hdr h;
+ uint32_t rsvd[6];
+ uint32_t read_addr;
+ uint32_t read_data_size;
+};
+
+/* Read ROM */
+struct qla82xx_minidump_entry_rdrom {
+ struct qla82xx_minidump_entry_hdr h;
+ uint32_t rsvd[6];
+ uint32_t read_addr;
+ uint32_t read_data_size;
+};
+
+/* Mux entry */
+struct qla82xx_minidump_entry_mux {
+ struct qla82xx_minidump_entry_hdr h;
+ uint32_t select_addr;
+ uint32_t rsvd_0;
+ uint32_t data_size;
+ uint32_t op_count;
+ uint32_t select_value;
+ uint32_t select_value_stride;
+ uint32_t read_addr;
+ uint32_t rsvd_1;
+};
+
+/* Queue entry */
+struct qla82xx_minidump_entry_queue {
+ struct qla82xx_minidump_entry_hdr h;
+ uint32_t select_addr;
+ struct {
+ uint16_t queue_id_stride;
+ uint16_t rsvd_0;
+ } q_strd;
+ uint32_t data_size;
+ uint32_t op_count;
+ uint32_t rsvd_1;
+ uint32_t rsvd_2;
+ uint32_t read_addr;
+ struct {
+ uint8_t read_addr_stride;
+ uint8_t read_addr_cnt;
+ uint16_t rsvd_3;
+ } rd_strd;
+};
+
+#define QLA82XX_MINIDUMP_OCM0_SIZE (256 * 1024)
+#define QLA82XX_MINIDUMP_L1C_SIZE (256 * 1024)
+#define QLA82XX_MINIDUMP_L2C_SIZE 1572864
+#define QLA82XX_MINIDUMP_COMMON_STR_SIZE 0
+#define QLA82XX_MINIDUMP_FCOE_STR_SIZE 0
+#define QLA82XX_MINIDUMP_MEM_SIZE 0
+#define QLA82XX_MAX_ENTRY_HDR 4
+
+struct qla82xx_minidump {
+ uint32_t md_ocm0_data[QLA82XX_MINIDUMP_OCM0_SIZE];
+ uint32_t md_l1c_data[QLA82XX_MINIDUMP_L1C_SIZE];
+ uint32_t md_l2c_data[QLA82XX_MINIDUMP_L2C_SIZE];
+ uint32_t md_cs_data[QLA82XX_MINIDUMP_COMMON_STR_SIZE];
+ uint32_t md_fcoes_data[QLA82XX_MINIDUMP_FCOE_STR_SIZE];
+ uint32_t md_mem_data[QLA82XX_MINIDUMP_MEM_SIZE];
+};
+
+#define MBC_DIAGNOSTIC_MINIDUMP_TEMPLATE 0x129
+#define RQST_TMPLT_SIZE 0x0
+#define RQST_TMPLT 0x1
+#define MD_DIRECT_ROM_WINDOW 0x42110030
+#define MD_DIRECT_ROM_READ_BASE 0x42150000
+#define MD_MIU_TEST_AGT_CTRL 0x41000090
+#define MD_MIU_TEST_AGT_ADDR_LO 0x41000094
+#define MD_MIU_TEST_AGT_ADDR_HI 0x41000098
+
+static const int MD_MIU_TEST_AGT_RDDATA[] = { 0x410000A8,
+ 0x410000AC, 0x410000B8, 0x410000BC };
#endif
" Maximum queue depth to report for target devices.\n"
"\t\t Default: 32.");
+static int ql4xqfulltracking = 1;
+module_param(ql4xqfulltracking, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(ql4xqfulltracking,
+ " Enable or disable dynamic tracking and adjustment of\n"
+ "\t\t scsi device queue depth.\n"
+ "\t\t 0 - Disable.\n"
+ "\t\t 1 - Enable. (Default)");
+
static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO;
module_param(ql4xsess_recovery_tmo, int, S_IRUGO);
MODULE_PARM_DESC(ql4xsess_recovery_tmo,
" Target Session Recovery Timeout.\n"
"\t\t Default: 120 sec.");
+int ql4xmdcapmask = 0x1F;
+module_param(ql4xmdcapmask, int, S_IRUGO);
+MODULE_PARM_DESC(ql4xmdcapmask,
+ " Set the Minidump driver capture mask level.\n"
+ "\t\t Default is 0x1F.\n"
+ "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F");
+
+int ql4xenablemd = 1;
+module_param(ql4xenablemd, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(ql4xenablemd,
+ " Set to enable minidump.\n"
+ "\t\t 0 - disable minidump\n"
+ "\t\t 1 - enable minidump (Default)");
+
static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha);
/*
* SCSI host template entry points
static void qla4xxx_slave_destroy(struct scsi_device *sdev);
static umode_t ql4_attr_is_visible(int param_type, int param);
static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type);
+static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth,
+ int reason);
static struct qla4_8xxx_legacy_intr_set legacy_intr[] =
QLA82XX_LEGACY_INTR_CONFIG;
.slave_configure = qla4xxx_slave_configure,
.slave_alloc = qla4xxx_slave_alloc,
.slave_destroy = qla4xxx_slave_destroy,
+ .change_queue_depth = qla4xxx_change_queue_depth,
.this_id = -1,
.cmd_per_lun = 3,
struct iscsi_session *sess;
struct ddb_entry *ddb_entry;
struct scsi_qla_host *ha;
- unsigned long flags;
+ unsigned long flags, wtime;
+ struct dev_db_entry *fw_ddb_entry = NULL;
+ dma_addr_t fw_ddb_entry_dma;
+ uint32_t ddb_state;
+ int ret;
DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
sess = cls_sess->dd_data;
ddb_entry = sess->dd_data;
ha = ddb_entry->ha;
+ fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+ &fw_ddb_entry_dma, GFP_KERNEL);
+ if (!fw_ddb_entry) {
+ ql4_printk(KERN_ERR, ha,
+ "%s: Unable to allocate dma buffer\n", __func__);
+ goto destroy_session;
+ }
+
+ wtime = jiffies + (HZ * LOGOUT_TOV);
+ do {
+ ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
+ fw_ddb_entry, fw_ddb_entry_dma,
+ NULL, NULL, &ddb_state, NULL,
+ NULL, NULL);
+ if (ret == QLA_ERROR)
+ goto destroy_session;
+
+ if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
+ (ddb_state == DDB_DS_SESSION_FAILED))
+ goto destroy_session;
+
+ schedule_timeout_uninterruptible(HZ);
+ } while ((time_after(wtime, jiffies)));
+
+destroy_session:
qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
spin_lock_irqsave(&ha->hardware_lock, flags);
qla4xxx_free_ddb(ha, ddb_entry);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
iscsi_session_teardown(cls_sess);
+
+ if (fw_ddb_entry)
+ dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+ fw_ddb_entry, fw_ddb_entry_dma);
}
static struct iscsi_cls_conn *
dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
ha->queues_dma);
+ if (ha->fw_dump)
+ vfree(ha->fw_dump);
+
ha->queues_len = 0;
ha->queues = NULL;
ha->queues_dma = 0;
ha->response_dma = 0;
ha->shadow_regs = NULL;
ha->shadow_regs_dma = 0;
+ ha->fw_dump = NULL;
+ ha->fw_dump_size = 0;
/* Free srb pool. */
if (ha->srb_mempool)
set_bit(AF_INIT_DONE, &ha->flags);
+ qla4_8xxx_alloc_sysfs_attr(ha);
+
printk(KERN_INFO
" QLogic iSCSI HBA Driver version: %s\n"
" QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
iscsi_boot_destroy_kset(ha->boot_kset);
qla4xxx_destroy_fw_ddb_session(ha);
+ qla4_8xxx_free_sysfs_attr(ha);
scsi_remove_host(ha->host);
scsi_deactivate_tcq(sdev, 1);
}
+static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth,
+ int reason)
+{
+ if (!ql4xqfulltracking)
+ return -EOPNOTSUPP;
+
+ return iscsi_change_queue_depth(sdev, qdepth, reason);
+}
+
/**
* qla4xxx_del_from_active_array - returns an active srb
* @ha: Pointer to host adapter structure.
* See LICENSE.qla4xxx for copyright and licensing details.
*/
-#define QLA4XXX_DRIVER_VERSION "5.02.00-k16"
+#define QLA4XXX_DRIVER_VERSION "5.02.00-k17"
{
struct scsi_device *sdev = q->queuedata;
struct Scsi_Host *shost;
- struct scsi_target *starget;
if (!sdev)
return 0;
shost = sdev->host;
- starget = scsi_target(sdev);
- if (scsi_host_in_recovery(shost) || scsi_host_is_busy(shost) ||
- scsi_target_is_busy(starget) || scsi_device_is_busy(sdev))
+ /*
+ * Ignore host/starget busy state.
+ * Since block layer does not have a concept of fairness across
+ * multiple queues, congestion of host/starget needs to be handled
+ * in SCSI layer.
+ */
+ if (scsi_host_in_recovery(shost) || scsi_device_is_busy(sdev))
return 1;
return 0;
err = scsi_device_quiesce(to_scsi_device(dev));
if (err == 0) {
drv = dev->driver;
- if (drv && drv->suspend)
+ if (drv && drv->suspend) {
err = drv->suspend(dev, msg);
+ if (err)
+ scsi_device_resume(to_scsi_device(dev));
+ }
}
dev_dbg(dev, "scsi suspend: %d\n", err);
return err;
do {
if (list_empty(&scanning_hosts))
- return 0;
+ goto out;
/* If we can't get memory immediately, that's OK. Just
* sleep a little. Even if we never get memory, the async
* scans will finish eventually.
}
done:
spin_unlock(&async_scan_lock);
-
kfree(data);
+
+ out:
+ async_synchronize_full_domain(&scsi_sd_probe_domain);
+
return 0;
}
#include <linux/module.h>
#include <linux/device.h>
-#include <scsi/scsi_scan.h>
+#include "scsi_priv.h"
static int __init wait_scan_init(void)
{
err = pci_request_regions(pdev, UFSHCD);
if (err < 0) {
dev_err(&pdev->dev, "request regions failed\n");
- goto out_disable;
+ goto out_host_put;
}
hba->mmio_base = pci_ioremap_bar(pdev, 0);
iounmap(hba->mmio_base);
out_release_regions:
pci_release_regions(pdev);
-out_disable:
+out_host_put:
scsi_host_put(host);
+out_disable:
pci_clear_master(pdev);
pci_disable_device(pdev);
out_error:
#include <linux/module.h>
#include <linux/file.h>
#include <linux/fs.h>
+#include <linux/falloc.h>
#include <linux/miscdevice.h>
#include <linux/security.h>
#include <linux/mm.h>
mutex_lock(&ashmem_mutex);
list_for_each_entry_safe(range, next, &ashmem_lru_list, lru) {
- struct inode *inode = range->asma->file->f_dentry->d_inode;
loff_t start = range->pgstart * PAGE_SIZE;
- loff_t end = (range->pgend + 1) * PAGE_SIZE - 1;
+ loff_t end = (range->pgend + 1) * PAGE_SIZE;
- vmtruncate_range(inode, start, end);
+ do_fallocate(range->asma->file,
+ FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
+ start, end - start);
range->purged = ASHMEM_WAS_PURGED;
lru_del(range);
mutex_unlock(&devpts_mutex);
mutex_lock(&tty_mutex);
- mutex_lock(&devpts_mutex);
tty = tty_init_dev(ptm_driver, index);
if (IS_ERR(tty)) {
/* The tty returned here is locked so we can safely
drop the mutex */
- mutex_unlock(&devpts_mutex);
mutex_unlock(&tty_mutex);
set_bit(TTY_PTY_LOCK, &tty->flags); /* LOCK THE SLAVE */
#include <linux/tty_flip.h>
#include <linux/serial_core.h>
#include <linux/serial.h>
-#include <linux/platform_device.h>
+#include <linux/of_platform.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
#include <linux/io.h>
#include <linux/clk.h>
+#include <linux/gpio.h>
#include <lantiq_soc.h>
#define PORT_LTQ_ASC 111
#define MAXPORTS 2
#define UART_DUMMY_UER_RX 1
-#define DRVNAME "ltq_asc"
+#define DRVNAME "lantiq,asc"
#ifdef __BIG_ENDIAN
#define LTQ_ASC_TBUF (0x0020 + 3)
#define LTQ_ASC_RBUF (0x0024 + 3)
struct ltq_uart_port {
struct uart_port port;
+ /* clock used to derive divider */
+ struct clk *fpiclk;
+ /* clock gating of the ASC core */
struct clk *clk;
unsigned int tx_irq;
unsigned int rx_irq;
struct ltq_uart_port *ltq_port = to_ltq_uart_port(port);
int retval;
- port->uartclk = clk_get_rate(ltq_port->clk);
+ if (ltq_port->clk)
+ clk_enable(ltq_port->clk);
+ port->uartclk = clk_get_rate(ltq_port->fpiclk);
ltq_w32_mask(ASCCLC_DISS | ASCCLC_RMCMASK, (1 << ASCCLC_RMCOFFSET),
port->membase + LTQ_ASC_CLC);
port->membase + LTQ_ASC_RXFCON);
ltq_w32_mask(ASCTXFCON_TXFEN, ASCTXFCON_TXFFLU,
port->membase + LTQ_ASC_TXFCON);
+ if (ltq_port->clk)
+ clk_disable(ltq_port->clk);
}
static void
port = <q_port->port;
- port->uartclk = clk_get_rate(ltq_port->clk);
+ port->uartclk = clk_get_rate(ltq_port->fpiclk);
if (options)
uart_parse_options(options, &baud, &parity, &bits, &flow);
static int __init
lqasc_probe(struct platform_device *pdev)
{
+ struct device_node *node = pdev->dev.of_node;
struct ltq_uart_port *ltq_port;
struct uart_port *port;
- struct resource *mmres, *irqres;
- int tx_irq, rx_irq, err_irq;
- struct clk *clk;
+ struct resource *mmres, irqres[3];
+ int line = 0;
int ret;
mmres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- irqres = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!mmres || !irqres)
+ ret = of_irq_to_resource_table(node, irqres, 3);
+ if (!mmres || (ret != 3)) {
+ dev_err(&pdev->dev,
+ "failed to get memory/irq for serial port\n");
return -ENODEV;
+ }
- if (pdev->id >= MAXPORTS)
- return -EBUSY;
+ /* check if this is the console port */
+ if (mmres->start != CPHYSADDR(LTQ_EARLY_ASC))
+ line = 1;
- if (lqasc_port[pdev->id] != NULL)
+ if (lqasc_port[line]) {
+ dev_err(&pdev->dev, "port %d already allocated\n", line);
return -EBUSY;
-
- clk = clk_get(&pdev->dev, "fpi");
- if (IS_ERR(clk)) {
- pr_err("failed to get fpi clk\n");
- return -ENOENT;
}
- tx_irq = platform_get_irq_byname(pdev, "tx");
- rx_irq = platform_get_irq_byname(pdev, "rx");
- err_irq = platform_get_irq_byname(pdev, "err");
- if ((tx_irq < 0) | (rx_irq < 0) | (err_irq < 0))
- return -ENODEV;
-
- ltq_port = kzalloc(sizeof(struct ltq_uart_port), GFP_KERNEL);
+ ltq_port = devm_kzalloc(&pdev->dev, sizeof(struct ltq_uart_port),
+ GFP_KERNEL);
if (!ltq_port)
return -ENOMEM;
port->ops = &lqasc_pops;
port->fifosize = 16;
port->type = PORT_LTQ_ASC,
- port->line = pdev->id;
+ port->line = line;
port->dev = &pdev->dev;
-
- port->irq = tx_irq; /* unused, just to be backward-compatibe */
+ /* unused, just to be backward-compatible */
+ port->irq = irqres[0].start;
port->mapbase = mmres->start;
- ltq_port->clk = clk;
+ ltq_port->fpiclk = clk_get_fpi();
+ if (IS_ERR(ltq_port->fpiclk)) {
+ pr_err("failed to get fpi clk\n");
+ return -ENOENT;
+ }
- ltq_port->tx_irq = tx_irq;
- ltq_port->rx_irq = rx_irq;
- ltq_port->err_irq = err_irq;
+ /* not all asc ports have clock gates, lets ignore the return code */
+ ltq_port->clk = clk_get(&pdev->dev, NULL);
- lqasc_port[pdev->id] = ltq_port;
+ ltq_port->tx_irq = irqres[0].start;
+ ltq_port->rx_irq = irqres[1].start;
+ ltq_port->err_irq = irqres[2].start;
+
+ lqasc_port[line] = ltq_port;
platform_set_drvdata(pdev, ltq_port);
ret = uart_add_one_port(&lqasc_reg, port);
return ret;
}
+static const struct of_device_id ltq_asc_match[] = {
+ { .compatible = DRVNAME },
+ {},
+};
+MODULE_DEVICE_TABLE(of, ltq_asc_match);
+
static struct platform_driver lqasc_driver = {
.driver = {
.name = DRVNAME,
.owner = THIS_MODULE,
+ .of_match_table = ltq_asc_match,
},
};
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/kernel.h>
+#include <linux/module.h>
#include <linux/major.h>
#include <linux/serial.h>
#include <linux/serial_core.h>
#include <linux/ioport.h>
#include <linux/irqflags.h>
#include <linux/kernel.h>
+#include <linux/module.h>
#include <linux/major.h>
#include <linux/serial.h>
#include <linux/serial_core.h>
tty_ldisc_enable(tty);
return 0;
}
+
+static void tty_ldisc_kill(struct tty_struct *tty)
+{
+ mutex_lock(&tty->ldisc_mutex);
+ /*
+ * Now kill off the ldisc
+ */
+ tty_ldisc_close(tty, tty->ldisc);
+ tty_ldisc_put(tty->ldisc);
+ /* Force an oops if we mess this up */
+ tty->ldisc = NULL;
+
+ /* Ensure the next open requests the N_TTY ldisc */
+ tty_set_termios_ldisc(tty, N_TTY);
+ mutex_unlock(&tty->ldisc_mutex);
+}
+
/**
* tty_ldisc_release - release line discipline
* @tty: tty being shut down
* race with the set_ldisc code path.
*/
- tty_unlock(tty);
+ tty_unlock_pair(tty, o_tty);
tty_ldisc_halt(tty);
tty_ldisc_flush_works(tty);
- tty_lock(tty);
-
- mutex_lock(&tty->ldisc_mutex);
- /*
- * Now kill off the ldisc
- */
- tty_ldisc_close(tty, tty->ldisc);
- tty_ldisc_put(tty->ldisc);
- /* Force an oops if we mess this up */
- tty->ldisc = NULL;
+ if (o_tty) {
+ tty_ldisc_halt(o_tty);
+ tty_ldisc_flush_works(o_tty);
+ }
+ tty_lock_pair(tty, o_tty);
- /* Ensure the next open requests the N_TTY ldisc */
- tty_set_termios_ldisc(tty, N_TTY);
- mutex_unlock(&tty->ldisc_mutex);
- /* This will need doing differently if we need to lock */
+ tty_ldisc_kill(tty);
if (o_tty)
- tty_ldisc_release(o_tty, NULL);
+ tty_ldisc_kill(o_tty);
/* And the memory resources remaining (buffers, termios) will be
disposed of when the kref hits zero */
/* Legacy tty mutex glue */
+enum {
+ TTY_MUTEX_NORMAL,
+ TTY_MUTEX_NESTED,
+};
+
/*
* Getting the big tty mutex.
*/
-void __lockfunc tty_lock(struct tty_struct *tty)
+static void __lockfunc tty_lock_nested(struct tty_struct *tty,
+ unsigned int subclass)
{
if (tty->magic != TTY_MAGIC) {
printk(KERN_ERR "L Bad %p\n", tty);
return;
}
tty_kref_get(tty);
- mutex_lock(&tty->legacy_mutex);
+ mutex_lock_nested(&tty->legacy_mutex, subclass);
+}
+
+void __lockfunc tty_lock(struct tty_struct *tty)
+{
+ return tty_lock_nested(tty, TTY_MUTEX_NORMAL);
}
EXPORT_SYMBOL(tty_lock);
{
if (tty < tty2) {
tty_lock(tty);
- tty_lock(tty2);
+ tty_lock_nested(tty2, TTY_MUTEX_NESTED);
} else {
if (tty2 && tty2 != tty)
tty_lock(tty2);
- tty_lock(tty);
+ tty_lock_nested(tty, TTY_MUTEX_NESTED);
}
}
EXPORT_SYMBOL(tty_lock_pair);
known as the Corgi backlight driver. If you have a Sharp Zaurus
SL-C7xx, SL-Cxx00 or SL-6000x say y.
+config BACKLIGHT_LM3533
+ tristate "Backlight Driver for LM3533"
+ depends on BACKLIGHT_CLASS_DEVICE
+ depends on MFD_LM3533
+ help
+ Say Y to enable the backlight driver for National Semiconductor / TI
+ LM3533 Lighting Power chips.
+
+ The backlights can be controlled directly, through PWM input, or by
+ the ambient-light-sensor interface. The chip supports 256 brightness
+ levels.
+
config BACKLIGHT_LOCOMO
tristate "Sharp LOCOMO LCD/Backlight Driver"
depends on SHARP_LOCOMO
obj-$(CONFIG_BACKLIGHT_GENERIC) += generic_bl.o
obj-$(CONFIG_BACKLIGHT_HP700) += jornada720_bl.o
obj-$(CONFIG_BACKLIGHT_HP680) += hp680_bl.o
+obj-$(CONFIG_BACKLIGHT_LM3533) += lm3533_bl.o
obj-$(CONFIG_BACKLIGHT_LOCOMO) += locomolcd.o
obj-$(CONFIG_BACKLIGHT_LP855X) += lp855x_bl.o
obj-$(CONFIG_BACKLIGHT_OMAP1) += omap1_bl.o
unsigned long val;
int ret;
- ret = strict_strtoul(buf, 10, &val);
+ ret = kstrtoul(buf, 10, &val);
if (ret)
return ret;
struct adp5520_bl *data = dev_get_drvdata(dev);
int ret;
- ret = strict_strtoul(buf, 10, &data->cached_daylight_max);
+ ret = kstrtoul(buf, 10, &data->cached_daylight_max);
if (ret < 0)
return ret;
struct led_info *cur_led;
int ret, i;
- led = kzalloc(sizeof(*led) * pdata->num_leds, GFP_KERNEL);
+ led = devm_kzalloc(&client->dev, sizeof(*led) * pdata->num_leds,
+ GFP_KERNEL);
if (led == NULL) {
dev_err(&client->dev, "failed to alloc memory\n");
return -ENOMEM;
if (ret) {
dev_err(&client->dev, "failed to write\n");
- goto err_free;
+ return ret;
}
for (i = 0; i < pdata->num_leds; ++i) {
cancel_work_sync(&led[i].work);
}
- err_free:
- kfree(led);
-
return ret;
}
cancel_work_sync(&data->led[i].work);
}
- kfree(data->led);
return 0;
}
#else
unsigned long val;
int ret;
- ret = strict_strtoul(buf, 10, &val);
+ ret = kstrtoul(buf, 10, &val);
if (ret)
return ret;
struct device_attribute *attr, const char *buf, size_t count)
{
struct adp8860_bl *data = dev_get_drvdata(dev);
- int ret = strict_strtoul(buf, 10, &data->cached_daylight_max);
+ int ret = kstrtoul(buf, 10, &data->cached_daylight_max);
if (ret)
return ret;
uint8_t reg_val;
int ret;
- ret = strict_strtoul(buf, 10, &val);
+ ret = kstrtoul(buf, 10, &val);
if (ret)
return ret;
return -EINVAL;
}
- data = kzalloc(sizeof(*data), GFP_KERNEL);
+ data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
if (data == NULL)
return -ENOMEM;
ret = adp8860_read(client, ADP8860_MFDVID, ®_val);
if (ret < 0)
- goto out2;
+ return ret;
switch (ADP8860_MANID(reg_val)) {
case ADP8863_MANUFID:
break;
default:
dev_err(&client->dev, "failed to probe\n");
- ret = -ENODEV;
- goto out2;
+ return -ENODEV;
}
/* It's confirmed that the DEVID field is actually a REVID */
&client->dev, data, &adp8860_bl_ops, &props);
if (IS_ERR(bl)) {
dev_err(&client->dev, "failed to register backlight\n");
- ret = PTR_ERR(bl);
- goto out2;
+ return PTR_ERR(bl);
}
bl->props.brightness = ADP8860_MAX_BRIGHTNESS;
&adp8860_bl_attr_group);
out1:
backlight_device_unregister(bl);
-out2:
- kfree(data);
return ret;
}
&adp8860_bl_attr_group);
backlight_device_unregister(data->bl);
- kfree(data);
return 0;
}
struct led_info *cur_led;
int ret, i;
-
- led = kcalloc(pdata->num_leds, sizeof(*led), GFP_KERNEL);
+ led = devm_kzalloc(&client->dev, pdata->num_leds * sizeof(*led),
+ GFP_KERNEL);
if (led == NULL) {
dev_err(&client->dev, "failed to alloc memory\n");
return -ENOMEM;
ret = adp8870_write(client, ADP8870_ISCLAW, pdata->led_fade_law);
if (ret)
- goto err_free;
+ return ret;
ret = adp8870_write(client, ADP8870_ISCT1,
(pdata->led_on_time & 0x3) << 6);
if (ret)
- goto err_free;
+ return ret;
ret = adp8870_write(client, ADP8870_ISCF,
FADE_VAL(pdata->led_fade_in, pdata->led_fade_out));
if (ret)
- goto err_free;
+ return ret;
for (i = 0; i < pdata->num_leds; ++i) {
cur_led = &pdata->leds[i];
cancel_work_sync(&led[i].work);
}
- err_free:
- kfree(led);
-
return ret;
}
cancel_work_sync(&data->led[i].work);
}
- kfree(data->led);
return 0;
}
#else
unsigned long val;
int ret;
- ret = strict_strtoul(buf, 10, &val);
+ ret = kstrtoul(buf, 10, &val);
if (ret)
return ret;
struct device_attribute *attr, const char *buf, size_t count)
{
struct adp8870_bl *data = dev_get_drvdata(dev);
- int ret = strict_strtoul(buf, 10, &data->cached_daylight_max);
+ int ret = kstrtoul(buf, 10, &data->cached_daylight_max);
if (ret)
return ret;
uint8_t reg_val;
int ret;
- ret = strict_strtoul(buf, 10, &val);
+ ret = kstrtoul(buf, 10, &val);
if (ret)
return ret;
return -ENODEV;
}
- data = kzalloc(sizeof(*data), GFP_KERNEL);
+ data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
if (data == NULL)
return -ENOMEM;
&client->dev, data, &adp8870_bl_ops, &props);
if (IS_ERR(bl)) {
dev_err(&client->dev, "failed to register backlight\n");
- ret = PTR_ERR(bl);
- goto out2;
+ return PTR_ERR(bl);
}
data->bl = bl;
&adp8870_bl_attr_group);
out1:
backlight_device_unregister(bl);
-out2:
- kfree(data);
return ret;
}
&adp8870_bl_attr_group);
backlight_device_unregister(data->bl);
- kfree(data);
return 0;
}
struct backlight_device *bd = NULL;
struct backlight_properties props;
- lcd = kzalloc(sizeof(struct ams369fg06), GFP_KERNEL);
+ lcd = devm_kzalloc(&spi->dev, sizeof(struct ams369fg06), GFP_KERNEL);
if (!lcd)
return -ENOMEM;
ret = spi_setup(spi);
if (ret < 0) {
dev_err(&spi->dev, "spi setup failed.\n");
- goto out_free_lcd;
+ return ret;
}
lcd->spi = spi;
lcd->lcd_pd = spi->dev.platform_data;
if (!lcd->lcd_pd) {
dev_err(&spi->dev, "platform data is NULL\n");
- goto out_free_lcd;
+ return -EFAULT;
}
ld = lcd_device_register("ams369fg06", &spi->dev, lcd,
&ams369fg06_lcd_ops);
- if (IS_ERR(ld)) {
- ret = PTR_ERR(ld);
- goto out_free_lcd;
- }
+ if (IS_ERR(ld))
+ return PTR_ERR(ld);
lcd->ld = ld;
out_lcd_unregister:
lcd_device_unregister(ld);
-out_free_lcd:
- kfree(lcd);
return ret;
}
ams369fg06_power(lcd, FB_BLANK_POWERDOWN);
backlight_device_unregister(lcd->bd);
lcd_device_unregister(lcd->ld);
- kfree(lcd);
return 0;
}
static struct spi_driver ams369fg06_driver = {
.driver = {
.name = "ams369fg06",
- .bus = &spi_bus_type,
.owner = THIS_MODULE,
},
.probe = ams369fg06_probe,
* get at the firmware code in order to figure out what it's actually doing.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/acpi.h>
#include <linux/atomic.h>
+#include <linux/apple_bl.h>
static struct backlight_device *apple_backlight_device;
static const struct hw_data *hw_data;
-#define DRIVER "apple_backlight: "
-
/* Module parameters. */
static int debug;
module_param_named(debug, debug, int, 0644);
int intensity = bd->props.brightness;
if (debug)
- printk(KERN_DEBUG DRIVER "setting brightness to %d\n",
- intensity);
+ pr_debug("setting brightness to %d\n", intensity);
intel_chipset_set_brightness(intensity);
return 0;
intensity = inb(0xb3) >> 4;
if (debug)
- printk(KERN_DEBUG DRIVER "read brightness of %d\n",
- intensity);
+ pr_debug("read brightness of %d\n", intensity);
return intensity;
}
int intensity = bd->props.brightness;
if (debug)
- printk(KERN_DEBUG DRIVER "setting brightness to %d\n",
- intensity);
+ pr_debug("setting brightness to %d\n", intensity);
nvidia_chipset_set_brightness(intensity);
return 0;
intensity = inb(0x52f) >> 4;
if (debug)
- printk(KERN_DEBUG DRIVER "read brightness of %d\n",
- intensity);
+ pr_debug("read brightness of %d\n", intensity);
return intensity;
}
host = pci_get_bus_and_slot(0, 0);
if (!host) {
- printk(KERN_ERR DRIVER "unable to find PCI host\n");
+ pr_err("unable to find PCI host\n");
return -ENODEV;
}
pci_dev_put(host);
if (!hw_data) {
- printk(KERN_ERR DRIVER "unknown hardware\n");
+ pr_err("unknown hardware\n");
return -ENODEV;
}
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
rc = -ENXIO;
mutex_lock(&bd->ops_lock);
if (bd->ops) {
- pr_debug("backlight: set power to %lu\n", power);
+ pr_debug("set power to %lu\n", power);
if (bd->props.power != power) {
bd->props.power = power;
backlight_update_status(bd);
if (brightness > bd->props.max_brightness)
rc = -EINVAL;
else {
- pr_debug("backlight: set brightness to %lu\n",
- brightness);
+ pr_debug("set brightness to %lu\n", brightness);
bd->props.brightness = brightness;
backlight_update_status(bd);
rc = count;
{
backlight_class = class_create(THIS_MODULE, "backlight");
if (IS_ERR(backlight_class)) {
- printk(KERN_WARNING "Unable to create backlight class; errno = %ld\n",
- PTR_ERR(backlight_class));
+ pr_warn("Unable to create backlight class; errno = %ld\n",
+ PTR_ERR(backlight_class));
return PTR_ERR(backlight_class);
}
return -EINVAL;
}
- lcd = kzalloc(sizeof(struct corgi_lcd), GFP_KERNEL);
+ lcd = devm_kzalloc(&spi->dev, sizeof(struct corgi_lcd), GFP_KERNEL);
if (!lcd) {
dev_err(&spi->dev, "failed to allocate memory\n");
return -ENOMEM;
lcd->lcd_dev = lcd_device_register("corgi_lcd", &spi->dev,
lcd, &corgi_lcd_ops);
- if (IS_ERR(lcd->lcd_dev)) {
- ret = PTR_ERR(lcd->lcd_dev);
- goto err_free_lcd;
- }
+ if (IS_ERR(lcd->lcd_dev))
+ return PTR_ERR(lcd->lcd_dev);
+
lcd->power = FB_BLANK_POWERDOWN;
lcd->mode = (pdata) ? pdata->init_mode : CORGI_LCD_MODE_VGA;
backlight_device_unregister(lcd->bl_dev);
err_unregister_lcd:
lcd_device_unregister(lcd->lcd_dev);
-err_free_lcd:
- kfree(lcd);
return ret;
}
corgi_lcd_set_power(lcd->lcd_dev, FB_BLANK_POWERDOWN);
lcd_device_unregister(lcd->lcd_dev);
- kfree(lcd);
return 0;
}
* Alan Hourihane <alanh-at-tungstengraphics-dot-com>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
lpc_dev = pci_get_device(PCI_VENDOR_ID_INTEL,
CRVML_DEVICE_LPC, NULL);
if (!lpc_dev) {
- printk("INTEL CARILLO RANCH LPC not found.\n");
+ pr_err("INTEL CARILLO RANCH LPC not found.\n");
return -ENODEV;
}
pci_read_config_byte(lpc_dev, CRVML_REG_GPIOEN, &dev_en);
if (!(dev_en & CRVML_GPIOEN_BIT)) {
- printk(KERN_ERR
- "Carillo Ranch GPIO device was not enabled.\n");
+ pr_err("Carillo Ranch GPIO device was not enabled.\n");
pci_dev_put(lpc_dev);
return -ENODEV;
}
return PTR_ERR(crp);
}
- printk("Carillo Ranch Backlight Driver Initialized.\n");
+ pr_info("Carillo Ranch Backlight Driver Initialized.\n");
return 0;
}
da903x_write(data->da903x_dev, DA9034_WLED_CONTROL2,
DA9034_WLED_ISET(pdata->output_current));
+ memset(&props, 0, sizeof(props));
props.type = BACKLIGHT_RAW;
props.max_brightness = max_brightness;
bl = backlight_device_register(pdev->name, data->da903x_dev, data,
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
generic_backlight_device = bd;
- printk("Generic Backlight Driver Initialized.\n");
+ pr_info("Generic Backlight Driver Initialized.\n");
return 0;
}
backlight_device_unregister(bd);
- printk("Generic Backlight Driver Unloaded\n");
+ pr_info("Generic Backlight Driver Unloaded\n");
return 0;
}
/* allocate and initialse our state */
- ili = kzalloc(sizeof(struct ili9320), GFP_KERNEL);
+ ili = devm_kzalloc(&spi->dev, sizeof(struct ili9320), GFP_KERNEL);
if (ili == NULL) {
dev_err(dev, "no memory for device\n");
return -ENOMEM;
lcd = lcd_device_register("ili9320", dev, ili, &ili9320_ops);
if (IS_ERR(lcd)) {
dev_err(dev, "failed to register lcd device\n");
- ret = PTR_ERR(lcd);
- goto err_free;
+ return PTR_ERR(lcd);
}
ili->lcd = lcd;
err_unregister:
lcd_device_unregister(lcd);
- err_free:
- kfree(ili);
-
return ret;
}
ili9320_power(ili, FB_BLANK_POWERDOWN);
lcd_device_unregister(ili->lcd);
- kfree(ili);
return 0;
}
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/backlight.h>
#include <linux/device.h>
#include <linux/fb.h>
ret = jornada_ssp_byte(GETBRIGHTNESS);
if (jornada_ssp_byte(GETBRIGHTNESS) != TXDUMMY) {
- printk(KERN_ERR "bl : get brightness timeout\n");
+ pr_err("get brightness timeout\n");
jornada_ssp_end();
return -ETIMEDOUT;
} else /* exchange txdummy for value */
if ((bd->props.power != FB_BLANK_UNBLANK) || (bd->props.fb_blank != FB_BLANK_UNBLANK)) {
ret = jornada_ssp_byte(BRIGHTNESSOFF);
if (ret != TXDUMMY) {
- printk(KERN_INFO "bl : brightness off timeout\n");
+ pr_info("brightness off timeout\n");
/* turn off backlight */
PPSR &= ~PPC_LDD1;
PPDR |= PPC_LDD1;
/* send command to our mcu */
if (jornada_ssp_byte(SETBRIGHTNESS) != TXDUMMY) {
- printk(KERN_INFO "bl : failed to set brightness\n");
+ pr_info("failed to set brightness\n");
ret = -ETIMEDOUT;
goto out;
}
but due to physical layout it is equal to 0, so we simply
invert the value (MAX VALUE - NEW VALUE). */
if (jornada_ssp_byte(BL_MAX_BRIGHT - bd->props.brightness) != TXDUMMY) {
- printk(KERN_ERR "bl : set brightness failed\n");
+ pr_err("set brightness failed\n");
ret = -ETIMEDOUT;
}
if (IS_ERR(bd)) {
ret = PTR_ERR(bd);
- printk(KERN_ERR "bl : failed to register device, err=%x\n", ret);
+ pr_err("failed to register device, err=%x\n", ret);
return ret;
}
jornada_bl_update_status(bd);
platform_set_drvdata(pdev, bd);
- printk(KERN_INFO "HP Jornada 700 series backlight driver\n");
+ pr_info("HP Jornada 700 series backlight driver\n");
return 0;
}
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/device.h>
#include <linux/fb.h>
#include <linux/kernel.h>
jornada_ssp_start();
if (jornada_ssp_byte(GETCONTRAST) != TXDUMMY) {
- printk(KERN_ERR "lcd: get contrast failed\n");
+ pr_err("get contrast failed\n");
jornada_ssp_end();
return -ETIMEDOUT;
} else {
/* push the new value */
if (jornada_ssp_byte(value) != TXDUMMY) {
- printk(KERN_ERR "lcd : set contrast failed\n");
+ pr_err("set contrast failed\n");
jornada_ssp_end();
return -ETIMEDOUT;
}
if (IS_ERR(lcd_device)) {
ret = PTR_ERR(lcd_device);
- printk(KERN_ERR "lcd : failed to register device\n");
+ pr_err("failed to register device\n");
return ret;
}
* published by the Free Software Foundation.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/delay.h>
return -EINVAL;
}
- priv = kzalloc(sizeof(struct l4f00242t03_priv), GFP_KERNEL);
+ priv = devm_kzalloc(&spi->dev, sizeof(struct l4f00242t03_priv),
+ GFP_KERNEL);
if (priv == NULL) {
dev_err(&spi->dev, "No memory for this device.\n");
if (ret) {
dev_err(&spi->dev,
"Unable to get the lcd l4f00242t03 reset gpio.\n");
- goto err;
+ return ret;
}
ret = gpio_request_one(pdata->data_enable_gpio, GPIOF_OUT_INIT_LOW,
if (ret) {
dev_err(&spi->dev,
"Unable to get the lcd l4f00242t03 data en gpio.\n");
- goto err2;
+ goto err;
}
priv->io_reg = regulator_get(&spi->dev, "vdd");
ret = PTR_ERR(priv->io_reg);
dev_err(&spi->dev, "%s: Unable to get the IO regulator\n",
__func__);
- goto err3;
+ goto err2;
}
priv->core_reg = regulator_get(&spi->dev, "vcore");
ret = PTR_ERR(priv->core_reg);
dev_err(&spi->dev, "%s: Unable to get the core regulator\n",
__func__);
- goto err4;
+ goto err3;
}
priv->ld = lcd_device_register("l4f00242t03",
&spi->dev, priv, &l4f_ops);
if (IS_ERR(priv->ld)) {
ret = PTR_ERR(priv->ld);
- goto err5;
+ goto err4;
}
/* Init the LCD */
return 0;
-err5:
- regulator_put(priv->core_reg);
err4:
- regulator_put(priv->io_reg);
+ regulator_put(priv->core_reg);
err3:
- gpio_free(pdata->data_enable_gpio);
+ regulator_put(priv->io_reg);
err2:
- gpio_free(pdata->reset_gpio);
+ gpio_free(pdata->data_enable_gpio);
err:
- kfree(priv);
+ gpio_free(pdata->reset_gpio);
return ret;
}
regulator_put(priv->io_reg);
regulator_put(priv->core_reg);
- kfree(priv);
-
return 0;
}
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
case FB_EVENT_BLANK:
case FB_EVENT_MODE_CHANGE:
case FB_EVENT_MODE_CHANGE_ALL:
+ case FB_EARLY_EVENT_BLANK:
+ case FB_R_EARLY_EVENT_BLANK:
break;
default:
return 0;
if (event == FB_EVENT_BLANK) {
if (ld->ops->set_power)
ld->ops->set_power(ld, *(int *)evdata->data);
+ } else if (event == FB_EARLY_EVENT_BLANK) {
+ if (ld->ops->early_set_power)
+ ld->ops->early_set_power(ld,
+ *(int *)evdata->data);
+ } else if (event == FB_R_EARLY_EVENT_BLANK) {
+ if (ld->ops->r_early_set_power)
+ ld->ops->r_early_set_power(ld,
+ *(int *)evdata->data);
} else {
if (ld->ops->set_mode)
ld->ops->set_mode(ld, evdata->data);
mutex_lock(&ld->ops_lock);
if (ld->ops && ld->ops->set_power) {
- pr_debug("lcd: set power to %lu\n", power);
+ pr_debug("set power to %lu\n", power);
ld->ops->set_power(ld, power);
rc = count;
}
mutex_lock(&ld->ops_lock);
if (ld->ops && ld->ops->set_contrast) {
- pr_debug("lcd: set contrast to %lu\n", contrast);
+ pr_debug("set contrast to %lu\n", contrast);
ld->ops->set_contrast(ld, contrast);
rc = count;
}
{
lcd_class = class_create(THIS_MODULE, "lcd");
if (IS_ERR(lcd_class)) {
- printk(KERN_WARNING "Unable to create backlight class; errno = %ld\n",
- PTR_ERR(lcd_class));
+ pr_warn("Unable to create backlight class; errno = %ld\n",
+ PTR_ERR(lcd_class));
return PTR_ERR(lcd_class);
}
struct backlight_device *bd = NULL;
struct backlight_properties props;
- lcd = kzalloc(sizeof(struct ld9040), GFP_KERNEL);
+ lcd = devm_kzalloc(&spi->dev, sizeof(struct ld9040), GFP_KERNEL);
if (!lcd)
return -ENOMEM;
ret = spi_setup(spi);
if (ret < 0) {
dev_err(&spi->dev, "spi setup failed.\n");
- goto out_free_lcd;
+ return ret;
}
lcd->spi = spi;
lcd->lcd_pd = spi->dev.platform_data;
if (!lcd->lcd_pd) {
dev_err(&spi->dev, "platform data is NULL.\n");
- goto out_free_lcd;
+ return -EFAULT;
}
mutex_init(&lcd->lock);
ret = regulator_bulk_get(lcd->dev, ARRAY_SIZE(supplies), supplies);
if (ret) {
dev_err(lcd->dev, "Failed to get regulators: %d\n", ret);
- goto out_free_lcd;
+ return ret;
}
ld = lcd_device_register("ld9040", &spi->dev, lcd, &ld9040_lcd_ops);
if (IS_ERR(ld)) {
ret = PTR_ERR(ld);
- goto out_free_lcd;
+ goto out_free_regulator;
}
lcd->ld = ld;
out_unregister_lcd:
lcd_device_unregister(lcd->ld);
-out_free_lcd:
+out_free_regulator:
regulator_bulk_free(ARRAY_SIZE(supplies), supplies);
- kfree(lcd);
return ret;
}
backlight_device_unregister(lcd->bd);
lcd_device_unregister(lcd->ld);
regulator_bulk_free(ARRAY_SIZE(supplies), supplies);
- kfree(lcd);
return 0;
}
static struct spi_driver ld9040_driver = {
.driver = {
.name = "ld9040",
- .bus = &spi_bus_type,
.owner = THIS_MODULE,
},
.probe = ld9040_probe,
--- /dev/null
+/*
+ * lm3533-bl.c -- LM3533 Backlight driver
+ *
+ * Copyright (C) 2011-2012 Texas Instruments
+ *
+ * Author: Johan Hovold <jhovold@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/backlight.h>
+#include <linux/fb.h>
+#include <linux/slab.h>
+
+#include <linux/mfd/lm3533.h>
+
+
+#define LM3533_HVCTRLBANK_COUNT 2
+#define LM3533_BL_MAX_BRIGHTNESS 255
+
+#define LM3533_REG_CTRLBANK_AB_BCONF 0x1a
+
+
+struct lm3533_bl {
+ struct lm3533 *lm3533;
+ struct lm3533_ctrlbank cb;
+ struct backlight_device *bd;
+ int id;
+};
+
+
+static inline int lm3533_bl_get_ctrlbank_id(struct lm3533_bl *bl)
+{
+ return bl->id;
+}
+
+static int lm3533_bl_update_status(struct backlight_device *bd)
+{
+ struct lm3533_bl *bl = bl_get_data(bd);
+ int brightness = bd->props.brightness;
+
+ if (bd->props.power != FB_BLANK_UNBLANK)
+ brightness = 0;
+ if (bd->props.fb_blank != FB_BLANK_UNBLANK)
+ brightness = 0;
+
+ return lm3533_ctrlbank_set_brightness(&bl->cb, (u8)brightness);
+}
+
+static int lm3533_bl_get_brightness(struct backlight_device *bd)
+{
+ struct lm3533_bl *bl = bl_get_data(bd);
+ u8 val;
+ int ret;
+
+ ret = lm3533_ctrlbank_get_brightness(&bl->cb, &val);
+ if (ret)
+ return ret;
+
+ return val;
+}
+
+static const struct backlight_ops lm3533_bl_ops = {
+ .get_brightness = lm3533_bl_get_brightness,
+ .update_status = lm3533_bl_update_status,
+};
+
+static ssize_t show_id(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct lm3533_bl *bl = dev_get_drvdata(dev);
+
+ return scnprintf(buf, PAGE_SIZE, "%d\n", bl->id);
+}
+
+static ssize_t show_als_channel(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct lm3533_bl *bl = dev_get_drvdata(dev);
+ unsigned channel = lm3533_bl_get_ctrlbank_id(bl);
+
+ return scnprintf(buf, PAGE_SIZE, "%u\n", channel);
+}
+
+static ssize_t show_als_en(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct lm3533_bl *bl = dev_get_drvdata(dev);
+ int ctrlbank = lm3533_bl_get_ctrlbank_id(bl);
+ u8 val;
+ u8 mask;
+ bool enable;
+ int ret;
+
+ ret = lm3533_read(bl->lm3533, LM3533_REG_CTRLBANK_AB_BCONF, &val);
+ if (ret)
+ return ret;
+
+ mask = 1 << (2 * ctrlbank);
+ enable = val & mask;
+
+ return scnprintf(buf, PAGE_SIZE, "%d\n", enable);
+}
+
+static ssize_t store_als_en(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct lm3533_bl *bl = dev_get_drvdata(dev);
+ int ctrlbank = lm3533_bl_get_ctrlbank_id(bl);
+ int enable;
+ u8 val;
+ u8 mask;
+ int ret;
+
+ if (kstrtoint(buf, 0, &enable))
+ return -EINVAL;
+
+ mask = 1 << (2 * ctrlbank);
+
+ if (enable)
+ val = mask;
+ else
+ val = 0;
+
+ ret = lm3533_update(bl->lm3533, LM3533_REG_CTRLBANK_AB_BCONF, val,
+ mask);
+ if (ret)
+ return ret;
+
+ return len;
+}
+
+static ssize_t show_linear(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct lm3533_bl *bl = dev_get_drvdata(dev);
+ u8 val;
+ u8 mask;
+ int linear;
+ int ret;
+
+ ret = lm3533_read(bl->lm3533, LM3533_REG_CTRLBANK_AB_BCONF, &val);
+ if (ret)
+ return ret;
+
+ mask = 1 << (2 * lm3533_bl_get_ctrlbank_id(bl) + 1);
+
+ if (val & mask)
+ linear = 1;
+ else
+ linear = 0;
+
+ return scnprintf(buf, PAGE_SIZE, "%x\n", linear);
+}
+
+static ssize_t store_linear(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct lm3533_bl *bl = dev_get_drvdata(dev);
+ unsigned long linear;
+ u8 mask;
+ u8 val;
+ int ret;
+
+ if (kstrtoul(buf, 0, &linear))
+ return -EINVAL;
+
+ mask = 1 << (2 * lm3533_bl_get_ctrlbank_id(bl) + 1);
+
+ if (linear)
+ val = mask;
+ else
+ val = 0;
+
+ ret = lm3533_update(bl->lm3533, LM3533_REG_CTRLBANK_AB_BCONF, val,
+ mask);
+ if (ret)
+ return ret;
+
+ return len;
+}
+
+static ssize_t show_pwm(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct lm3533_bl *bl = dev_get_drvdata(dev);
+ u8 val;
+ int ret;
+
+ ret = lm3533_ctrlbank_get_pwm(&bl->cb, &val);
+ if (ret)
+ return ret;
+
+ return scnprintf(buf, PAGE_SIZE, "%u\n", val);
+}
+
+static ssize_t store_pwm(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct lm3533_bl *bl = dev_get_drvdata(dev);
+ u8 val;
+ int ret;
+
+ if (kstrtou8(buf, 0, &val))
+ return -EINVAL;
+
+ ret = lm3533_ctrlbank_set_pwm(&bl->cb, val);
+ if (ret)
+ return ret;
+
+ return len;
+}
+
+static LM3533_ATTR_RO(als_channel);
+static LM3533_ATTR_RW(als_en);
+static LM3533_ATTR_RO(id);
+static LM3533_ATTR_RW(linear);
+static LM3533_ATTR_RW(pwm);
+
+static struct attribute *lm3533_bl_attributes[] = {
+ &dev_attr_als_channel.attr,
+ &dev_attr_als_en.attr,
+ &dev_attr_id.attr,
+ &dev_attr_linear.attr,
+ &dev_attr_pwm.attr,
+ NULL,
+};
+
+static umode_t lm3533_bl_attr_is_visible(struct kobject *kobj,
+ struct attribute *attr, int n)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct lm3533_bl *bl = dev_get_drvdata(dev);
+ umode_t mode = attr->mode;
+
+ if (attr == &dev_attr_als_channel.attr ||
+ attr == &dev_attr_als_en.attr) {
+ if (!bl->lm3533->have_als)
+ mode = 0;
+ }
+
+ return mode;
+};
+
+static struct attribute_group lm3533_bl_attribute_group = {
+ .is_visible = lm3533_bl_attr_is_visible,
+ .attrs = lm3533_bl_attributes
+};
+
+static int __devinit lm3533_bl_setup(struct lm3533_bl *bl,
+ struct lm3533_bl_platform_data *pdata)
+{
+ int ret;
+
+ ret = lm3533_ctrlbank_set_max_current(&bl->cb, pdata->max_current);
+ if (ret)
+ return ret;
+
+ return lm3533_ctrlbank_set_pwm(&bl->cb, pdata->pwm);
+}
+
+static int __devinit lm3533_bl_probe(struct platform_device *pdev)
+{
+ struct lm3533 *lm3533;
+ struct lm3533_bl_platform_data *pdata;
+ struct lm3533_bl *bl;
+ struct backlight_device *bd;
+ struct backlight_properties props;
+ int ret;
+
+ dev_dbg(&pdev->dev, "%s\n", __func__);
+
+ lm3533 = dev_get_drvdata(pdev->dev.parent);
+ if (!lm3533)
+ return -EINVAL;
+
+ pdata = pdev->dev.platform_data;
+ if (!pdata) {
+ dev_err(&pdev->dev, "no platform data\n");
+ return -EINVAL;
+ }
+
+ if (pdev->id < 0 || pdev->id >= LM3533_HVCTRLBANK_COUNT) {
+ dev_err(&pdev->dev, "illegal backlight id %d\n", pdev->id);
+ return -EINVAL;
+ }
+
+ bl = kzalloc(sizeof(*bl), GFP_KERNEL);
+ if (!bl) {
+ dev_err(&pdev->dev,
+ "failed to allocate memory for backlight\n");
+ return -ENOMEM;
+ }
+
+ bl->lm3533 = lm3533;
+ bl->id = pdev->id;
+
+ bl->cb.lm3533 = lm3533;
+ bl->cb.id = lm3533_bl_get_ctrlbank_id(bl);
+ bl->cb.dev = NULL; /* until registered */
+
+ memset(&props, 0, sizeof(props));
+ props.type = BACKLIGHT_RAW;
+ props.max_brightness = LM3533_BL_MAX_BRIGHTNESS;
+ props.brightness = pdata->default_brightness;
+ bd = backlight_device_register(pdata->name, pdev->dev.parent, bl,
+ &lm3533_bl_ops, &props);
+ if (IS_ERR(bd)) {
+ dev_err(&pdev->dev, "failed to register backlight device\n");
+ ret = PTR_ERR(bd);
+ goto err_free;
+ }
+
+ bl->bd = bd;
+ bl->cb.dev = &bl->bd->dev;
+
+ platform_set_drvdata(pdev, bl);
+
+ ret = sysfs_create_group(&bd->dev.kobj, &lm3533_bl_attribute_group);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to create sysfs attributes\n");
+ goto err_unregister;
+ }
+
+ backlight_update_status(bd);
+
+ ret = lm3533_bl_setup(bl, pdata);
+ if (ret)
+ goto err_sysfs_remove;
+
+ ret = lm3533_ctrlbank_enable(&bl->cb);
+ if (ret)
+ goto err_sysfs_remove;
+
+ return 0;
+
+err_sysfs_remove:
+ sysfs_remove_group(&bd->dev.kobj, &lm3533_bl_attribute_group);
+err_unregister:
+ backlight_device_unregister(bd);
+err_free:
+ kfree(bl);
+
+ return ret;
+}
+
+static int __devexit lm3533_bl_remove(struct platform_device *pdev)
+{
+ struct lm3533_bl *bl = platform_get_drvdata(pdev);
+ struct backlight_device *bd = bl->bd;
+
+ dev_dbg(&bd->dev, "%s\n", __func__);
+
+ bd->props.power = FB_BLANK_POWERDOWN;
+ bd->props.brightness = 0;
+
+ lm3533_ctrlbank_disable(&bl->cb);
+ sysfs_remove_group(&bd->dev.kobj, &lm3533_bl_attribute_group);
+ backlight_device_unregister(bd);
+ kfree(bl);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int lm3533_bl_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct lm3533_bl *bl = platform_get_drvdata(pdev);
+
+ dev_dbg(&pdev->dev, "%s\n", __func__);
+
+ return lm3533_ctrlbank_disable(&bl->cb);
+}
+
+static int lm3533_bl_resume(struct platform_device *pdev)
+{
+ struct lm3533_bl *bl = platform_get_drvdata(pdev);
+
+ dev_dbg(&pdev->dev, "%s\n", __func__);
+
+ return lm3533_ctrlbank_enable(&bl->cb);
+}
+#else
+#define lm3533_bl_suspend NULL
+#define lm3533_bl_resume NULL
+#endif
+
+static void lm3533_bl_shutdown(struct platform_device *pdev)
+{
+ struct lm3533_bl *bl = platform_get_drvdata(pdev);
+
+ dev_dbg(&pdev->dev, "%s\n", __func__);
+
+ lm3533_ctrlbank_disable(&bl->cb);
+}
+
+static struct platform_driver lm3533_bl_driver = {
+ .driver = {
+ .name = "lm3533-backlight",
+ .owner = THIS_MODULE,
+ },
+ .probe = lm3533_bl_probe,
+ .remove = __devexit_p(lm3533_bl_remove),
+ .shutdown = lm3533_bl_shutdown,
+ .suspend = lm3533_bl_suspend,
+ .resume = lm3533_bl_resume,
+};
+module_platform_driver(lm3533_bl_driver);
+
+MODULE_AUTHOR("Johan Hovold <jhovold@gmail.com>");
+MODULE_DESCRIPTION("LM3533 Backlight driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:lm3533-backlight");
goto err;
}
- st = kzalloc(sizeof(struct lms283gf05_state), GFP_KERNEL);
+ st = devm_kzalloc(&spi->dev, sizeof(struct lms283gf05_state),
+ GFP_KERNEL);
if (st == NULL) {
dev_err(&spi->dev, "No memory for device state\n");
ret = -ENOMEM;
ld = lcd_device_register("lms283gf05", &spi->dev, st, &lms_ops);
if (IS_ERR(ld)) {
ret = PTR_ERR(ld);
- goto err2;
+ goto err;
}
st->spi = spi;
return 0;
-err2:
- kfree(st);
err:
if (pdata != NULL)
gpio_free(pdata->reset_gpio);
if (pdata != NULL)
gpio_free(pdata->reset_gpio);
- kfree(st);
-
return 0;
}
struct lcd_device *ld;
int ret;
- lcd = kzalloc(sizeof(struct ltv350qv), GFP_KERNEL);
+ lcd = devm_kzalloc(&spi->dev, sizeof(struct ltv350qv), GFP_KERNEL);
if (!lcd)
return -ENOMEM;
lcd->spi = spi;
lcd->power = FB_BLANK_POWERDOWN;
- lcd->buffer = kzalloc(8, GFP_KERNEL);
- if (!lcd->buffer) {
- ret = -ENOMEM;
- goto out_free_lcd;
- }
+ lcd->buffer = devm_kzalloc(&spi->dev, 8, GFP_KERNEL);
+ if (!lcd->buffer)
+ return -ENOMEM;
ld = lcd_device_register("ltv350qv", &spi->dev, lcd, <v_ops);
- if (IS_ERR(ld)) {
- ret = PTR_ERR(ld);
- goto out_free_buffer;
- }
+ if (IS_ERR(ld))
+ return PTR_ERR(ld);
+
lcd->ld = ld;
ret = ltv350qv_power(lcd, FB_BLANK_UNBLANK);
out_unregister:
lcd_device_unregister(ld);
-out_free_buffer:
- kfree(lcd->buffer);
-out_free_lcd:
- kfree(lcd);
return ret;
}
ltv350qv_power(lcd, FB_BLANK_POWERDOWN);
lcd_device_unregister(lcd->ld);
- kfree(lcd->buffer);
- kfree(lcd);
return 0;
}
static struct spi_driver ltv350qv_driver = {
.driver = {
.name = "ltv350qv",
- .bus = &spi_bus_type,
.owner = THIS_MODULE,
},
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
dev->props.brightness = pdata->default_intensity;
omapbl_update_status(dev);
- printk(KERN_INFO "OMAP LCD backlight initialised\n");
+ pr_info("OMAP LCD backlight initialised\n");
return 0;
}
if (!pcf_bl)
return -ENOMEM;
+ memset(&bl_props, 0, sizeof(bl_props));
bl_props.type = BACKLIGHT_RAW;
bl_props.max_brightness = 0x3f;
bl_props.power = FB_BLANK_UNBLANK;
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
pmu_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, NULL);
if (!pmu_dev) {
- printk("ALI M7101 PMU not found.\n");
+ pr_err("ALI M7101 PMU not found.\n");
return -ENODEV;
}
sb_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);
if (!sb_dev) {
- printk("ALI 1533 SB not found.\n");
+ pr_err("ALI 1533 SB not found.\n");
ret = -ENODEV;
goto put_pmu;
}
struct backlight_device *bd = NULL;
struct backlight_properties props;
- lcd = kzalloc(sizeof(struct s6e63m0), GFP_KERNEL);
+ lcd = devm_kzalloc(&spi->dev, sizeof(struct s6e63m0), GFP_KERNEL);
if (!lcd)
return -ENOMEM;
ret = spi_setup(spi);
if (ret < 0) {
dev_err(&spi->dev, "spi setup failed.\n");
- goto out_free_lcd;
+ return ret;
}
lcd->spi = spi;
lcd->lcd_pd = (struct lcd_platform_data *)spi->dev.platform_data;
if (!lcd->lcd_pd) {
dev_err(&spi->dev, "platform data is NULL.\n");
- goto out_free_lcd;
+ return -EFAULT;
}
ld = lcd_device_register("s6e63m0", &spi->dev, lcd, &s6e63m0_lcd_ops);
- if (IS_ERR(ld)) {
- ret = PTR_ERR(ld);
- goto out_free_lcd;
- }
+ if (IS_ERR(ld))
+ return PTR_ERR(ld);
lcd->ld = ld;
out_lcd_unregister:
lcd_device_unregister(ld);
-out_free_lcd:
- kfree(lcd);
return ret;
}
device_remove_file(&spi->dev, &dev_attr_gamma_mode);
backlight_device_unregister(lcd->bd);
lcd_device_unregister(lcd->ld);
- kfree(lcd);
return 0;
}
static struct spi_driver s6e63m0_driver = {
.driver = {
.name = "s6e63m0",
- .bus = &spi_bus_type,
.owner = THIS_MODULE,
},
.probe = s6e63m0_probe,
if (err)
return err;
- lcd = kzalloc(sizeof(struct tdo24m), GFP_KERNEL);
+ lcd = devm_kzalloc(&spi->dev, sizeof(struct tdo24m), GFP_KERNEL);
if (!lcd)
return -ENOMEM;
lcd->power = FB_BLANK_POWERDOWN;
lcd->mode = MODE_VGA; /* default to VGA */
- lcd->buf = kmalloc(TDO24M_SPI_BUFF_SIZE, GFP_KERNEL);
- if (lcd->buf == NULL) {
- kfree(lcd);
+ lcd->buf = devm_kzalloc(&spi->dev, TDO24M_SPI_BUFF_SIZE, GFP_KERNEL);
+ if (lcd->buf == NULL)
return -ENOMEM;
- }
m = &lcd->msg;
x = &lcd->xfer;
break;
default:
dev_err(&spi->dev, "Unsupported model");
- goto out_free;
+ return -EINVAL;
}
lcd->lcd_dev = lcd_device_register("tdo24m", &spi->dev,
lcd, &tdo24m_ops);
- if (IS_ERR(lcd->lcd_dev)) {
- err = PTR_ERR(lcd->lcd_dev);
- goto out_free;
- }
+ if (IS_ERR(lcd->lcd_dev))
+ return PTR_ERR(lcd->lcd_dev);
dev_set_drvdata(&spi->dev, lcd);
err = tdo24m_power(lcd, FB_BLANK_UNBLANK);
out_unregister:
lcd_device_unregister(lcd->lcd_dev);
-out_free:
- kfree(lcd->buf);
- kfree(lcd);
return err;
}
tdo24m_power(lcd, FB_BLANK_POWERDOWN);
lcd_device_unregister(lcd->lcd_dev);
- kfree(lcd->buf);
- kfree(lcd);
return 0;
}
const struct i2c_device_id *id)
{
struct backlight_properties props;
- struct tosa_bl_data *data = kzalloc(sizeof(struct tosa_bl_data), GFP_KERNEL);
+ struct tosa_bl_data *data;
int ret = 0;
+
+ data = devm_kzalloc(&client->dev, sizeof(struct tosa_bl_data),
+ GFP_KERNEL);
if (!data)
return -ENOMEM;
ret = gpio_request(TOSA_GPIO_BL_C20MA, "backlight");
if (ret) {
dev_dbg(&data->bl->dev, "Unable to request gpio!\n");
- goto err_gpio_bl;
+ return ret;
}
ret = gpio_direction_output(TOSA_GPIO_BL_C20MA, 0);
if (ret)
data->bl = NULL;
err_gpio_dir:
gpio_free(TOSA_GPIO_BL_C20MA);
-err_gpio_bl:
- kfree(data);
return ret;
}
gpio_free(TOSA_GPIO_BL_C20MA);
- kfree(data);
-
return 0;
}
int ret;
struct tosa_lcd_data *data;
- data = kzalloc(sizeof(struct tosa_lcd_data), GFP_KERNEL);
+ data = devm_kzalloc(&spi->dev, sizeof(struct tosa_lcd_data),
+ GFP_KERNEL);
if (!data)
return -ENOMEM;
ret = spi_setup(spi);
if (ret < 0)
- goto err_spi;
+ return ret;
data->spi = spi;
dev_set_drvdata(&spi->dev, data);
gpio_free(TOSA_GPIO_TG_ON);
err_gpio_tg:
dev_set_drvdata(&spi->dev, NULL);
-err_spi:
- kfree(data);
return ret;
}
gpio_free(TOSA_GPIO_TG_ON);
dev_set_drvdata(&spi->dev, NULL);
- kfree(data);
return 0;
}
data->current_brightness = 0;
data->isink_reg = isink_reg;
+ memset(&props, 0, sizeof(props));
props.type = BACKLIGHT_RAW;
props.max_brightness = max_isel;
bl = backlight_device_register("wm831x", &pdev->dev, data,
int
fb_blank(struct fb_info *info, int blank)
{
- int ret = -EINVAL;
+ struct fb_event event;
+ int ret = -EINVAL, early_ret;
if (blank > FB_BLANK_POWERDOWN)
blank = FB_BLANK_POWERDOWN;
+ event.info = info;
+ event.data = ␣
+
+ early_ret = fb_notifier_call_chain(FB_EARLY_EVENT_BLANK, &event);
+
if (info->fbops->fb_blank)
ret = info->fbops->fb_blank(blank, info);
- if (!ret) {
- struct fb_event event;
-
- event.info = info;
- event.data = ␣
+ if (!ret)
fb_notifier_call_chain(FB_EVENT_BLANK, &event);
+ else {
+ /*
+ * if fb_blank is failed then revert effects of
+ * the early blank event.
+ */
+ if (!early_ret)
+ fb_notifier_call_chain(FB_R_EARLY_EVENT_BLANK, &event);
}
return ret;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WRITE_WORD_DATA |
I2C_FUNC_SMBUS_BYTE_DATA |
+ I2C_FUNC_NOSTART |
I2C_FUNC_PROTOCOL_MANGLING))
goto ERROR0;
if (!(data = kzalloc(sizeof(*data), GFP_KERNEL))) {
/*------- Backlight control --------*/
+ memset(&props, 0, sizeof(props));
props.fb_blank = FB_BLANK_UNBLANK;
props.power = FB_BLANK_UNBLANK;
props.type = BACKLIGHT_RAW;
To compile this driver as a module, choose M here: the
module will be called softdog.
+config DA9052_WATCHDOG
+ tristate "Dialog DA9052 Watchdog"
+ depends on PMIC_DA9052
+ select WATCHDOG_CORE
+ help
+ Support for the watchdog in the DA9052 PMIC. Watchdog trigger
+ cause system reset.
+
+ Say Y here to include support for the DA9052 watchdog.
+ Alternatively say M to compile the driver as a module,
+ which will be called da9052_wdt.
+
config WM831X_WATCHDOG
tristate "WM831x watchdog"
depends on MFD_WM831X
config ARM_SP805_WATCHDOG
tristate "ARM SP805 Watchdog"
depends on ARM_AMBA
+ select WATCHDOG_CORE
help
ARM Primecell SP805 Watchdog timer. This will reboot your system when
the timeout is reached.
config ITCO_WDT
tristate "Intel TCO Timer/Watchdog"
depends on (X86 || IA64) && PCI
+ select LPC_ICH
---help---
Hardware driver for the intel TCO timer based watchdog devices.
These drivers are included in the Intel 82801 I/O Controller
obj-$(CONFIG_XEN_WDT) += xen_wdt.o
# Architecture Independent
+obj-$(CONFIG_DA9052_WATCHDOG) += da9052_wdt.o
obj-$(CONFIG_WM831X_WATCHDOG) += wm831x_wdt.o
obj-$(CONFIG_WM8350_WATCHDOG) += wm8350_wdt.o
obj-$(CONFIG_MAX63XX_WATCHDOG) += max63xx_wdt.o
--- /dev/null
+/*
+ * System monitoring driver for DA9052 PMICs.
+ *
+ * Copyright(c) 2012 Dialog Semiconductor Ltd.
+ *
+ * Author: Anthony Olech <Anthony.Olech@diasemi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/uaccess.h>
+#include <linux/platform_device.h>
+#include <linux/time.h>
+#include <linux/watchdog.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/jiffies.h>
+#include <linux/delay.h>
+
+#include <linux/mfd/da9052/reg.h>
+#include <linux/mfd/da9052/da9052.h>
+
+#define DA9052_DEF_TIMEOUT 4
+#define DA9052_TWDMIN 256
+
+struct da9052_wdt_data {
+ struct watchdog_device wdt;
+ struct da9052 *da9052;
+ struct kref kref;
+ unsigned long jpast;
+};
+
+static const struct {
+ u8 reg_val;
+ int time; /* Seconds */
+} da9052_wdt_maps[] = {
+ { 1, 2 },
+ { 2, 4 },
+ { 3, 8 },
+ { 4, 16 },
+ { 5, 32 },
+ { 5, 33 }, /* Actual time 32.768s so included both 32s and 33s */
+ { 6, 65 },
+ { 6, 66 }, /* Actual time 65.536s so include both, 65s and 66s */
+ { 7, 131 },
+};
+
+
+static void da9052_wdt_release_resources(struct kref *r)
+{
+ struct da9052_wdt_data *driver_data =
+ container_of(r, struct da9052_wdt_data, kref);
+
+ kfree(driver_data);
+}
+
+static int da9052_wdt_set_timeout(struct watchdog_device *wdt_dev,
+ unsigned int timeout)
+{
+ struct da9052_wdt_data *driver_data = watchdog_get_drvdata(wdt_dev);
+ struct da9052 *da9052 = driver_data->da9052;
+ int ret, i;
+
+ /*
+ * Disable the Watchdog timer before setting
+ * new time out.
+ */
+ ret = da9052_reg_update(da9052, DA9052_CONTROL_D_REG,
+ DA9052_CONTROLD_TWDSCALE, 0);
+ if (ret < 0) {
+ dev_err(da9052->dev, "Failed to disable watchdog bit, %d\n",
+ ret);
+ return ret;
+ }
+ if (timeout) {
+ /*
+ * To change the timeout, da9052 needs to
+ * be disabled for at least 150 us.
+ */
+ udelay(150);
+
+ /* Set the desired timeout */
+ for (i = 0; i < ARRAY_SIZE(da9052_wdt_maps); i++)
+ if (da9052_wdt_maps[i].time == timeout)
+ break;
+
+ if (i == ARRAY_SIZE(da9052_wdt_maps))
+ ret = -EINVAL;
+ else
+ ret = da9052_reg_update(da9052, DA9052_CONTROL_D_REG,
+ DA9052_CONTROLD_TWDSCALE,
+ da9052_wdt_maps[i].reg_val);
+ if (ret < 0) {
+ dev_err(da9052->dev,
+ "Failed to update timescale bit, %d\n", ret);
+ return ret;
+ }
+
+ wdt_dev->timeout = timeout;
+ driver_data->jpast = jiffies;
+ }
+
+ return 0;
+}
+
+static void da9052_wdt_ref(struct watchdog_device *wdt_dev)
+{
+ struct da9052_wdt_data *driver_data = watchdog_get_drvdata(wdt_dev);
+
+ kref_get(&driver_data->kref);
+}
+
+static void da9052_wdt_unref(struct watchdog_device *wdt_dev)
+{
+ struct da9052_wdt_data *driver_data = watchdog_get_drvdata(wdt_dev);
+
+ kref_put(&driver_data->kref, da9052_wdt_release_resources);
+}
+
+static int da9052_wdt_start(struct watchdog_device *wdt_dev)
+{
+ return da9052_wdt_set_timeout(wdt_dev, wdt_dev->timeout);
+}
+
+static int da9052_wdt_stop(struct watchdog_device *wdt_dev)
+{
+ return da9052_wdt_set_timeout(wdt_dev, 0);
+}
+
+static int da9052_wdt_ping(struct watchdog_device *wdt_dev)
+{
+ struct da9052_wdt_data *driver_data = watchdog_get_drvdata(wdt_dev);
+ struct da9052 *da9052 = driver_data->da9052;
+ unsigned long msec, jnow = jiffies;
+ int ret;
+
+ /*
+ * We have a minimum time for watchdog window called TWDMIN. A write
+ * to the watchdog before this elapsed time should cause an error.
+ */
+ msec = (jnow - driver_data->jpast) * 1000/HZ;
+ if (msec < DA9052_TWDMIN)
+ mdelay(msec);
+
+ /* Reset the watchdog timer */
+ ret = da9052_reg_update(da9052, DA9052_CONTROL_D_REG,
+ DA9052_CONTROLD_WATCHDOG, 1 << 7);
+ if (ret < 0)
+ goto err_strobe;
+
+ /*
+ * FIXME: Reset the watchdog core, in general PMIC
+ * is supposed to do this
+ */
+ ret = da9052_reg_update(da9052, DA9052_CONTROL_D_REG,
+ DA9052_CONTROLD_WATCHDOG, 0 << 7);
+err_strobe:
+ return ret;
+}
+
+static struct watchdog_info da9052_wdt_info = {
+ .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+ .identity = "DA9052 Watchdog",
+};
+
+static const struct watchdog_ops da9052_wdt_ops = {
+ .owner = THIS_MODULE,
+ .start = da9052_wdt_start,
+ .stop = da9052_wdt_stop,
+ .ping = da9052_wdt_ping,
+ .set_timeout = da9052_wdt_set_timeout,
+ .ref = da9052_wdt_ref,
+ .unref = da9052_wdt_unref,
+};
+
+
+static int __devinit da9052_wdt_probe(struct platform_device *pdev)
+{
+ struct da9052 *da9052 = dev_get_drvdata(pdev->dev.parent);
+ struct da9052_wdt_data *driver_data;
+ struct watchdog_device *da9052_wdt;
+ int ret;
+
+ driver_data = devm_kzalloc(&pdev->dev, sizeof(*driver_data),
+ GFP_KERNEL);
+ if (!driver_data) {
+ dev_err(da9052->dev, "Unable to alloacate watchdog device\n");
+ ret = -ENOMEM;
+ goto err;
+ }
+ driver_data->da9052 = da9052;
+
+ da9052_wdt = &driver_data->wdt;
+
+ da9052_wdt->timeout = DA9052_DEF_TIMEOUT;
+ da9052_wdt->info = &da9052_wdt_info;
+ da9052_wdt->ops = &da9052_wdt_ops;
+ watchdog_set_drvdata(da9052_wdt, driver_data);
+
+ kref_init(&driver_data->kref);
+
+ ret = da9052_reg_update(da9052, DA9052_CONTROL_D_REG,
+ DA9052_CONTROLD_TWDSCALE, 0);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to disable watchdog bits, %d\n",
+ ret);
+ goto err;
+ }
+
+ ret = watchdog_register_device(&driver_data->wdt);
+ if (ret != 0) {
+ dev_err(da9052->dev, "watchdog_register_device() failed: %d\n",
+ ret);
+ goto err;
+ }
+
+ dev_set_drvdata(&pdev->dev, driver_data);
+err:
+ return ret;
+}
+
+static int __devexit da9052_wdt_remove(struct platform_device *pdev)
+{
+ struct da9052_wdt_data *driver_data = dev_get_drvdata(&pdev->dev);
+
+ watchdog_unregister_device(&driver_data->wdt);
+ kref_put(&driver_data->kref, da9052_wdt_release_resources);
+
+ return 0;
+}
+
+static struct platform_driver da9052_wdt_driver = {
+ .probe = da9052_wdt_probe,
+ .remove = __devexit_p(da9052_wdt_remove),
+ .driver = {
+ .name = "da9052-watchdog",
+ },
+};
+
+module_platform_driver(da9052_wdt_driver);
+
+MODULE_AUTHOR("Anthony Olech <Anthony.Olech@diasemi.com>");
+MODULE_DESCRIPTION("DA9052 SM Device Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:da9052-watchdog");
/* iTCO Vendor Specific Support hooks */
#ifdef CONFIG_ITCO_VENDOR_SUPPORT
-extern void iTCO_vendor_pre_start(unsigned long, unsigned int);
-extern void iTCO_vendor_pre_stop(unsigned long);
-extern void iTCO_vendor_pre_keepalive(unsigned long, unsigned int);
+extern void iTCO_vendor_pre_start(struct resource *, unsigned int);
+extern void iTCO_vendor_pre_stop(struct resource *);
+extern void iTCO_vendor_pre_keepalive(struct resource *, unsigned int);
extern void iTCO_vendor_pre_set_heartbeat(unsigned int);
extern int iTCO_vendor_check_noreboot_on(void);
#else
#include "iTCO_vendor.h"
-/* iTCO defines */
-#define SMI_EN (acpibase + 0x30) /* SMI Control and Enable Register */
-#define TCOBASE (acpibase + 0x60) /* TCO base address */
-#define TCO1_STS (TCOBASE + 0x04) /* TCO1 Status Register */
-
/* List of vendor support modes */
/* SuperMicro Pentium 3 Era 370SSE+-OEM1/P3TSSE */
#define SUPERMICRO_OLD_BOARD 1
* 20.6 seconds.
*/
-static void supermicro_old_pre_start(unsigned long acpibase)
+static void supermicro_old_pre_start(struct resource *smires)
{
unsigned long val32;
/* Bit 13: TCO_EN -> 0 = Disables TCO logic generating an SMI# */
- val32 = inl(SMI_EN);
+ val32 = inl(smires->start);
val32 &= 0xffffdfff; /* Turn off SMI clearing watchdog */
- outl(val32, SMI_EN); /* Needed to activate watchdog */
+ outl(val32, smires->start); /* Needed to activate watchdog */
}
-static void supermicro_old_pre_stop(unsigned long acpibase)
+static void supermicro_old_pre_stop(struct resource *smires)
{
unsigned long val32;
/* Bit 13: TCO_EN -> 1 = Enables the TCO logic to generate SMI# */
- val32 = inl(SMI_EN);
+ val32 = inl(smires->start);
val32 |= 0x00002000; /* Turn on SMI clearing watchdog */
- outl(val32, SMI_EN); /* Needed to deactivate watchdog */
+ outl(val32, smires->start); /* Needed to deactivate watchdog */
}
/*
* Don't use this fix if you don't need to!!!
*/
-static void broken_bios_start(unsigned long acpibase)
+static void broken_bios_start(struct resource *smires)
{
unsigned long val32;
- val32 = inl(SMI_EN);
+ val32 = inl(smires->start);
/* Bit 13: TCO_EN -> 0 = Disables TCO logic generating an SMI#
Bit 0: GBL_SMI_EN -> 0 = No SMI# will be generated by ICH. */
val32 &= 0xffffdffe;
- outl(val32, SMI_EN);
+ outl(val32, smires->start);
}
-static void broken_bios_stop(unsigned long acpibase)
+static void broken_bios_stop(struct resource *smires)
{
unsigned long val32;
- val32 = inl(SMI_EN);
+ val32 = inl(smires->start);
/* Bit 13: TCO_EN -> 1 = Enables TCO logic generating an SMI#
Bit 0: GBL_SMI_EN -> 1 = Turn global SMI on again. */
val32 |= 0x00002001;
- outl(val32, SMI_EN);
+ outl(val32, smires->start);
}
/*
* Generic Support Functions
*/
-void iTCO_vendor_pre_start(unsigned long acpibase,
+void iTCO_vendor_pre_start(struct resource *smires,
unsigned int heartbeat)
{
switch (vendorsupport) {
case SUPERMICRO_OLD_BOARD:
- supermicro_old_pre_start(acpibase);
+ supermicro_old_pre_start(smires);
break;
case SUPERMICRO_NEW_BOARD:
supermicro_new_pre_start(heartbeat);
break;
case BROKEN_BIOS:
- broken_bios_start(acpibase);
+ broken_bios_start(smires);
break;
}
}
EXPORT_SYMBOL(iTCO_vendor_pre_start);
-void iTCO_vendor_pre_stop(unsigned long acpibase)
+void iTCO_vendor_pre_stop(struct resource *smires)
{
switch (vendorsupport) {
case SUPERMICRO_OLD_BOARD:
- supermicro_old_pre_stop(acpibase);
+ supermicro_old_pre_stop(smires);
break;
case SUPERMICRO_NEW_BOARD:
supermicro_new_pre_stop();
break;
case BROKEN_BIOS:
- broken_bios_stop(acpibase);
+ broken_bios_stop(smires);
break;
}
}
EXPORT_SYMBOL(iTCO_vendor_pre_stop);
-void iTCO_vendor_pre_keepalive(unsigned long acpibase, unsigned int heartbeat)
+void iTCO_vendor_pre_keepalive(struct resource *smires, unsigned int heartbeat)
{
if (vendorsupport == SUPERMICRO_NEW_BOARD)
supermicro_new_pre_set_heartbeat(heartbeat);
#include <linux/spinlock.h> /* For spin_lock/spin_unlock/... */
#include <linux/uaccess.h> /* For copy_to_user/put_user/... */
#include <linux/io.h> /* For inb/outb/... */
+#include <linux/mfd/core.h>
+#include <linux/mfd/lpc_ich.h>
#include "iTCO_vendor.h"
-/* TCO related info */
-enum iTCO_chipsets {
- TCO_ICH = 0, /* ICH */
- TCO_ICH0, /* ICH0 */
- TCO_ICH2, /* ICH2 */
- TCO_ICH2M, /* ICH2-M */
- TCO_ICH3, /* ICH3-S */
- TCO_ICH3M, /* ICH3-M */
- TCO_ICH4, /* ICH4 */
- TCO_ICH4M, /* ICH4-M */
- TCO_CICH, /* C-ICH */
- TCO_ICH5, /* ICH5 & ICH5R */
- TCO_6300ESB, /* 6300ESB */
- TCO_ICH6, /* ICH6 & ICH6R */
- TCO_ICH6M, /* ICH6-M */
- TCO_ICH6W, /* ICH6W & ICH6RW */
- TCO_631XESB, /* 631xESB/632xESB */
- TCO_ICH7, /* ICH7 & ICH7R */
- TCO_ICH7DH, /* ICH7DH */
- TCO_ICH7M, /* ICH7-M & ICH7-U */
- TCO_ICH7MDH, /* ICH7-M DH */
- TCO_NM10, /* NM10 */
- TCO_ICH8, /* ICH8 & ICH8R */
- TCO_ICH8DH, /* ICH8DH */
- TCO_ICH8DO, /* ICH8DO */
- TCO_ICH8M, /* ICH8M */
- TCO_ICH8ME, /* ICH8M-E */
- TCO_ICH9, /* ICH9 */
- TCO_ICH9R, /* ICH9R */
- TCO_ICH9DH, /* ICH9DH */
- TCO_ICH9DO, /* ICH9DO */
- TCO_ICH9M, /* ICH9M */
- TCO_ICH9ME, /* ICH9M-E */
- TCO_ICH10, /* ICH10 */
- TCO_ICH10R, /* ICH10R */
- TCO_ICH10D, /* ICH10D */
- TCO_ICH10DO, /* ICH10DO */
- TCO_PCH, /* PCH Desktop Full Featured */
- TCO_PCHM, /* PCH Mobile Full Featured */
- TCO_P55, /* P55 */
- TCO_PM55, /* PM55 */
- TCO_H55, /* H55 */
- TCO_QM57, /* QM57 */
- TCO_H57, /* H57 */
- TCO_HM55, /* HM55 */
- TCO_Q57, /* Q57 */
- TCO_HM57, /* HM57 */
- TCO_PCHMSFF, /* PCH Mobile SFF Full Featured */
- TCO_QS57, /* QS57 */
- TCO_3400, /* 3400 */
- TCO_3420, /* 3420 */
- TCO_3450, /* 3450 */
- TCO_EP80579, /* EP80579 */
- TCO_CPT, /* Cougar Point */
- TCO_CPTD, /* Cougar Point Desktop */
- TCO_CPTM, /* Cougar Point Mobile */
- TCO_PBG, /* Patsburg */
- TCO_DH89XXCC, /* DH89xxCC */
- TCO_PPT, /* Panther Point */
- TCO_LPT, /* Lynx Point */
-};
-
-static struct {
- char *name;
- unsigned int iTCO_version;
-} iTCO_chipset_info[] __devinitdata = {
- {"ICH", 1},
- {"ICH0", 1},
- {"ICH2", 1},
- {"ICH2-M", 1},
- {"ICH3-S", 1},
- {"ICH3-M", 1},
- {"ICH4", 1},
- {"ICH4-M", 1},
- {"C-ICH", 1},
- {"ICH5 or ICH5R", 1},
- {"6300ESB", 1},
- {"ICH6 or ICH6R", 2},
- {"ICH6-M", 2},
- {"ICH6W or ICH6RW", 2},
- {"631xESB/632xESB", 2},
- {"ICH7 or ICH7R", 2},
- {"ICH7DH", 2},
- {"ICH7-M or ICH7-U", 2},
- {"ICH7-M DH", 2},
- {"NM10", 2},
- {"ICH8 or ICH8R", 2},
- {"ICH8DH", 2},
- {"ICH8DO", 2},
- {"ICH8M", 2},
- {"ICH8M-E", 2},
- {"ICH9", 2},
- {"ICH9R", 2},
- {"ICH9DH", 2},
- {"ICH9DO", 2},
- {"ICH9M", 2},
- {"ICH9M-E", 2},
- {"ICH10", 2},
- {"ICH10R", 2},
- {"ICH10D", 2},
- {"ICH10DO", 2},
- {"PCH Desktop Full Featured", 2},
- {"PCH Mobile Full Featured", 2},
- {"P55", 2},
- {"PM55", 2},
- {"H55", 2},
- {"QM57", 2},
- {"H57", 2},
- {"HM55", 2},
- {"Q57", 2},
- {"HM57", 2},
- {"PCH Mobile SFF Full Featured", 2},
- {"QS57", 2},
- {"3400", 2},
- {"3420", 2},
- {"3450", 2},
- {"EP80579", 2},
- {"Cougar Point", 2},
- {"Cougar Point Desktop", 2},
- {"Cougar Point Mobile", 2},
- {"Patsburg", 2},
- {"DH89xxCC", 2},
- {"Panther Point", 2},
- {"Lynx Point", 2},
- {NULL, 0}
-};
-
-/*
- * This data only exists for exporting the supported PCI ids
- * via MODULE_DEVICE_TABLE. We do not actually register a
- * pci_driver, because the I/O Controller Hub has also other
- * functions that probably will be registered by other drivers.
- */
-static DEFINE_PCI_DEVICE_TABLE(iTCO_wdt_pci_tbl) = {
- { PCI_VDEVICE(INTEL, 0x2410), TCO_ICH},
- { PCI_VDEVICE(INTEL, 0x2420), TCO_ICH0},
- { PCI_VDEVICE(INTEL, 0x2440), TCO_ICH2},
- { PCI_VDEVICE(INTEL, 0x244c), TCO_ICH2M},
- { PCI_VDEVICE(INTEL, 0x2480), TCO_ICH3},
- { PCI_VDEVICE(INTEL, 0x248c), TCO_ICH3M},
- { PCI_VDEVICE(INTEL, 0x24c0), TCO_ICH4},
- { PCI_VDEVICE(INTEL, 0x24cc), TCO_ICH4M},
- { PCI_VDEVICE(INTEL, 0x2450), TCO_CICH},
- { PCI_VDEVICE(INTEL, 0x24d0), TCO_ICH5},
- { PCI_VDEVICE(INTEL, 0x25a1), TCO_6300ESB},
- { PCI_VDEVICE(INTEL, 0x2640), TCO_ICH6},
- { PCI_VDEVICE(INTEL, 0x2641), TCO_ICH6M},
- { PCI_VDEVICE(INTEL, 0x2642), TCO_ICH6W},
- { PCI_VDEVICE(INTEL, 0x2670), TCO_631XESB},
- { PCI_VDEVICE(INTEL, 0x2671), TCO_631XESB},
- { PCI_VDEVICE(INTEL, 0x2672), TCO_631XESB},
- { PCI_VDEVICE(INTEL, 0x2673), TCO_631XESB},
- { PCI_VDEVICE(INTEL, 0x2674), TCO_631XESB},
- { PCI_VDEVICE(INTEL, 0x2675), TCO_631XESB},
- { PCI_VDEVICE(INTEL, 0x2676), TCO_631XESB},
- { PCI_VDEVICE(INTEL, 0x2677), TCO_631XESB},
- { PCI_VDEVICE(INTEL, 0x2678), TCO_631XESB},
- { PCI_VDEVICE(INTEL, 0x2679), TCO_631XESB},
- { PCI_VDEVICE(INTEL, 0x267a), TCO_631XESB},
- { PCI_VDEVICE(INTEL, 0x267b), TCO_631XESB},
- { PCI_VDEVICE(INTEL, 0x267c), TCO_631XESB},
- { PCI_VDEVICE(INTEL, 0x267d), TCO_631XESB},
- { PCI_VDEVICE(INTEL, 0x267e), TCO_631XESB},
- { PCI_VDEVICE(INTEL, 0x267f), TCO_631XESB},
- { PCI_VDEVICE(INTEL, 0x27b8), TCO_ICH7},
- { PCI_VDEVICE(INTEL, 0x27b0), TCO_ICH7DH},
- { PCI_VDEVICE(INTEL, 0x27b9), TCO_ICH7M},
- { PCI_VDEVICE(INTEL, 0x27bd), TCO_ICH7MDH},
- { PCI_VDEVICE(INTEL, 0x27bc), TCO_NM10},
- { PCI_VDEVICE(INTEL, 0x2810), TCO_ICH8},
- { PCI_VDEVICE(INTEL, 0x2812), TCO_ICH8DH},
- { PCI_VDEVICE(INTEL, 0x2814), TCO_ICH8DO},
- { PCI_VDEVICE(INTEL, 0x2815), TCO_ICH8M},
- { PCI_VDEVICE(INTEL, 0x2811), TCO_ICH8ME},
- { PCI_VDEVICE(INTEL, 0x2918), TCO_ICH9},
- { PCI_VDEVICE(INTEL, 0x2916), TCO_ICH9R},
- { PCI_VDEVICE(INTEL, 0x2912), TCO_ICH9DH},
- { PCI_VDEVICE(INTEL, 0x2914), TCO_ICH9DO},
- { PCI_VDEVICE(INTEL, 0x2919), TCO_ICH9M},
- { PCI_VDEVICE(INTEL, 0x2917), TCO_ICH9ME},
- { PCI_VDEVICE(INTEL, 0x3a18), TCO_ICH10},
- { PCI_VDEVICE(INTEL, 0x3a16), TCO_ICH10R},
- { PCI_VDEVICE(INTEL, 0x3a1a), TCO_ICH10D},
- { PCI_VDEVICE(INTEL, 0x3a14), TCO_ICH10DO},
- { PCI_VDEVICE(INTEL, 0x3b00), TCO_PCH},
- { PCI_VDEVICE(INTEL, 0x3b01), TCO_PCHM},
- { PCI_VDEVICE(INTEL, 0x3b02), TCO_P55},
- { PCI_VDEVICE(INTEL, 0x3b03), TCO_PM55},
- { PCI_VDEVICE(INTEL, 0x3b06), TCO_H55},
- { PCI_VDEVICE(INTEL, 0x3b07), TCO_QM57},
- { PCI_VDEVICE(INTEL, 0x3b08), TCO_H57},
- { PCI_VDEVICE(INTEL, 0x3b09), TCO_HM55},
- { PCI_VDEVICE(INTEL, 0x3b0a), TCO_Q57},
- { PCI_VDEVICE(INTEL, 0x3b0b), TCO_HM57},
- { PCI_VDEVICE(INTEL, 0x3b0d), TCO_PCHMSFF},
- { PCI_VDEVICE(INTEL, 0x3b0f), TCO_QS57},
- { PCI_VDEVICE(INTEL, 0x3b12), TCO_3400},
- { PCI_VDEVICE(INTEL, 0x3b14), TCO_3420},
- { PCI_VDEVICE(INTEL, 0x3b16), TCO_3450},
- { PCI_VDEVICE(INTEL, 0x5031), TCO_EP80579},
- { PCI_VDEVICE(INTEL, 0x1c41), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c42), TCO_CPTD},
- { PCI_VDEVICE(INTEL, 0x1c43), TCO_CPTM},
- { PCI_VDEVICE(INTEL, 0x1c44), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c45), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c46), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c47), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c48), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c49), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c4a), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c4b), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c4c), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c4d), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c4e), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c4f), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c50), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c51), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c52), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c53), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c54), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c55), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c56), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c57), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c58), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c59), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c5a), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c5b), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c5c), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c5d), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c5e), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1c5f), TCO_CPT},
- { PCI_VDEVICE(INTEL, 0x1d40), TCO_PBG},
- { PCI_VDEVICE(INTEL, 0x1d41), TCO_PBG},
- { PCI_VDEVICE(INTEL, 0x2310), TCO_DH89XXCC},
- { PCI_VDEVICE(INTEL, 0x1e40), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e41), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e42), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e43), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e44), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e45), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e46), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e47), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e48), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e49), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e4a), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e4b), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e4c), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e4d), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e4e), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e4f), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e50), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e51), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e52), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e53), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e54), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e55), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e56), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e57), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e58), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e59), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e5a), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e5b), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e5c), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e5d), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e5e), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x1e5f), TCO_PPT},
- { PCI_VDEVICE(INTEL, 0x8c40), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c41), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c42), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c43), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c44), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c45), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c46), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c47), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c48), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c49), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c4a), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c4b), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c4c), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c4d), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c4e), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c4f), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c50), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c51), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c52), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c53), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c54), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c55), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c56), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c57), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c58), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c59), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c5a), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c5b), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c5c), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c5d), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c5e), TCO_LPT},
- { PCI_VDEVICE(INTEL, 0x8c5f), TCO_LPT},
- { 0, }, /* End of list */
-};
-MODULE_DEVICE_TABLE(pci, iTCO_wdt_pci_tbl);
-
/* Address definitions for the TCO */
/* TCO base address */
-#define TCOBASE (iTCO_wdt_private.ACPIBASE + 0x60)
+#define TCOBASE (iTCO_wdt_private.tco_res->start)
/* SMI Control and Enable Register */
-#define SMI_EN (iTCO_wdt_private.ACPIBASE + 0x30)
+#define SMI_EN (iTCO_wdt_private.smi_res->start)
#define TCO_RLD (TCOBASE + 0x00) /* TCO Timer Reload and Curr. Value */
#define TCOv1_TMR (TCOBASE + 0x01) /* TCOv1 Timer Initial Value */
static struct { /* this is private data for the iTCO_wdt device */
/* TCO version/generation */
unsigned int iTCO_version;
- /* The device's ACPIBASE address (TCOBASE = ACPIBASE+0x60) */
- unsigned long ACPIBASE;
+ struct resource *tco_res;
+ struct resource *smi_res;
+ struct resource *gcs_res;
/* NO_REBOOT flag is Memory-Mapped GCS register bit 5 (TCO version 2)*/
unsigned long __iomem *gcs;
/* the lock for io operations */
spinlock_t io_lock;
+ struct platform_device *dev;
/* the PCI-device */
struct pci_dev *pdev;
} iTCO_wdt_private;
-/* the watchdog platform device */
-static struct platform_device *iTCO_wdt_platform_device;
-
/* module parameters */
#define WATCHDOG_HEARTBEAT 30 /* 30 sec default heartbeat */
static int heartbeat = WATCHDOG_HEARTBEAT; /* in seconds */
spin_lock(&iTCO_wdt_private.io_lock);
- iTCO_vendor_pre_start(iTCO_wdt_private.ACPIBASE, heartbeat);
+ iTCO_vendor_pre_start(iTCO_wdt_private.smi_res, heartbeat);
/* disable chipset's NO_REBOOT bit */
if (iTCO_wdt_unset_NO_REBOOT_bit()) {
spin_lock(&iTCO_wdt_private.io_lock);
- iTCO_vendor_pre_stop(iTCO_wdt_private.ACPIBASE);
+ iTCO_vendor_pre_stop(iTCO_wdt_private.smi_res);
/* Bit 11: TCO Timer Halt -> 1 = The TCO timer is disabled */
val = inw(TCO1_CNT);
{
spin_lock(&iTCO_wdt_private.io_lock);
- iTCO_vendor_pre_keepalive(iTCO_wdt_private.ACPIBASE, heartbeat);
+ iTCO_vendor_pre_keepalive(iTCO_wdt_private.smi_res, heartbeat);
/* Reload the timer by writing to the TCO Timer Counter register */
if (iTCO_wdt_private.iTCO_version == 2)
* Init & exit routines
*/
-static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
- const struct pci_device_id *ent, struct platform_device *dev)
+static void __devexit iTCO_wdt_cleanup(void)
+{
+ /* Stop the timer before we leave */
+ if (!nowayout)
+ iTCO_wdt_stop();
+
+ /* Deregister */
+ misc_deregister(&iTCO_wdt_miscdev);
+
+ /* release resources */
+ release_region(iTCO_wdt_private.tco_res->start,
+ resource_size(iTCO_wdt_private.tco_res));
+ release_region(iTCO_wdt_private.smi_res->start,
+ resource_size(iTCO_wdt_private.smi_res));
+ if (iTCO_wdt_private.iTCO_version == 2) {
+ iounmap(iTCO_wdt_private.gcs);
+ release_mem_region(iTCO_wdt_private.gcs_res->start,
+ resource_size(iTCO_wdt_private.gcs_res));
+ }
+
+ iTCO_wdt_private.tco_res = NULL;
+ iTCO_wdt_private.smi_res = NULL;
+ iTCO_wdt_private.gcs_res = NULL;
+ iTCO_wdt_private.gcs = NULL;
+}
+
+static int __devinit iTCO_wdt_probe(struct platform_device *dev)
{
- int ret;
- u32 base_address;
- unsigned long RCBA;
+ int ret = -ENODEV;
unsigned long val32;
+ struct lpc_ich_info *ich_info = dev->dev.platform_data;
+
+ if (!ich_info)
+ goto out;
+
+ spin_lock_init(&iTCO_wdt_private.io_lock);
+
+ iTCO_wdt_private.tco_res =
+ platform_get_resource(dev, IORESOURCE_IO, ICH_RES_IO_TCO);
+ if (!iTCO_wdt_private.tco_res)
+ goto out;
+
+ iTCO_wdt_private.smi_res =
+ platform_get_resource(dev, IORESOURCE_IO, ICH_RES_IO_SMI);
+ if (!iTCO_wdt_private.smi_res)
+ goto out;
+
+ iTCO_wdt_private.iTCO_version = ich_info->iTCO_version;
+ iTCO_wdt_private.dev = dev;
+ iTCO_wdt_private.pdev = to_pci_dev(dev->dev.parent);
/*
- * Find the ACPI/PM base I/O address which is the base
- * for the TCO registers (TCOBASE=ACPIBASE + 0x60)
- * ACPIBASE is bits [15:7] from 0x40-0x43
+ * Get the Memory-Mapped GCS register, we need it for the
+ * NO_REBOOT flag (TCO v2).
*/
- pci_read_config_dword(pdev, 0x40, &base_address);
- base_address &= 0x0000ff80;
- if (base_address == 0x00000000) {
- /* Something's wrong here, ACPIBASE has to be set */
- pr_err("failed to get TCOBASE address, device disabled by hardware/BIOS\n");
- return -ENODEV;
- }
- iTCO_wdt_private.iTCO_version =
- iTCO_chipset_info[ent->driver_data].iTCO_version;
- iTCO_wdt_private.ACPIBASE = base_address;
- iTCO_wdt_private.pdev = pdev;
-
- /* Get the Memory-Mapped GCS register, we need it for the
- NO_REBOOT flag (TCO v2). To get access to it you have to
- read RCBA from PCI Config space 0xf0 and use it as base.
- GCS = RCBA + ICH6_GCS(0x3410). */
if (iTCO_wdt_private.iTCO_version == 2) {
- pci_read_config_dword(pdev, 0xf0, &base_address);
- if ((base_address & 1) == 0) {
- pr_err("RCBA is disabled by hardware/BIOS, device disabled\n");
- ret = -ENODEV;
+ iTCO_wdt_private.gcs_res = platform_get_resource(dev,
+ IORESOURCE_MEM,
+ ICH_RES_MEM_GCS);
+
+ if (!iTCO_wdt_private.gcs_res)
+ goto out;
+
+ if (!request_mem_region(iTCO_wdt_private.gcs_res->start,
+ resource_size(iTCO_wdt_private.gcs_res), dev->name)) {
+ ret = -EBUSY;
goto out;
}
- RCBA = base_address & 0xffffc000;
- iTCO_wdt_private.gcs = ioremap((RCBA + 0x3410), 4);
+ iTCO_wdt_private.gcs = ioremap(iTCO_wdt_private.gcs_res->start,
+ resource_size(iTCO_wdt_private.gcs_res));
+ if (!iTCO_wdt_private.gcs) {
+ ret = -EIO;
+ goto unreg_gcs;
+ }
}
/* Check chipset's NO_REBOOT bit */
if (iTCO_wdt_unset_NO_REBOOT_bit() && iTCO_vendor_check_noreboot_on()) {
pr_info("unable to reset NO_REBOOT flag, device disabled by hardware/BIOS\n");
ret = -ENODEV; /* Cannot reset NO_REBOOT bit */
- goto out_unmap;
+ goto unmap_gcs;
}
/* Set the NO_REBOOT bit to prevent later reboots, just for sure */
iTCO_wdt_set_NO_REBOOT_bit();
/* The TCO logic uses the TCO_EN bit in the SMI_EN register */
- if (!request_region(SMI_EN, 4, "iTCO_wdt")) {
- pr_err("I/O address 0x%04lx already in use, device disabled\n",
- SMI_EN);
- ret = -EIO;
- goto out_unmap;
+ if (!request_region(iTCO_wdt_private.smi_res->start,
+ resource_size(iTCO_wdt_private.smi_res), dev->name)) {
+ pr_err("I/O address 0x%04llx already in use, device disabled\n",
+ (u64)SMI_EN);
+ ret = -EBUSY;
+ goto unmap_gcs;
}
if (turn_SMI_watchdog_clear_off >= iTCO_wdt_private.iTCO_version) {
- /* Bit 13: TCO_EN -> 0 = Disables TCO logic generating an SMI# */
+ /*
+ * Bit 13: TCO_EN -> 0
+ * Disables TCO logic generating an SMI#
+ */
val32 = inl(SMI_EN);
val32 &= 0xffffdfff; /* Turn off SMI clearing watchdog */
outl(val32, SMI_EN);
}
- /* The TCO I/O registers reside in a 32-byte range pointed to
- by the TCOBASE value */
- if (!request_region(TCOBASE, 0x20, "iTCO_wdt")) {
- pr_err("I/O address 0x%04lx already in use, device disabled\n",
- TCOBASE);
- ret = -EIO;
- goto unreg_smi_en;
+ if (!request_region(iTCO_wdt_private.tco_res->start,
+ resource_size(iTCO_wdt_private.tco_res), dev->name)) {
+ pr_err("I/O address 0x%04llx already in use, device disabled\n",
+ (u64)TCOBASE);
+ ret = -EBUSY;
+ goto unreg_smi;
}
- pr_info("Found a %s TCO device (Version=%d, TCOBASE=0x%04lx)\n",
- iTCO_chipset_info[ent->driver_data].name,
- iTCO_chipset_info[ent->driver_data].iTCO_version,
- TCOBASE);
+ pr_info("Found a %s TCO device (Version=%d, TCOBASE=0x%04llx)\n",
+ ich_info->name, ich_info->iTCO_version, (u64)TCOBASE);
/* Clear out the (probably old) status */
outw(0x0008, TCO1_STS); /* Clear the Time Out Status bit */
if (ret != 0) {
pr_err("cannot register miscdev on minor=%d (err=%d)\n",
WATCHDOG_MINOR, ret);
- goto unreg_region;
+ goto unreg_tco;
}
pr_info("initialized. heartbeat=%d sec (nowayout=%d)\n",
return 0;
-unreg_region:
- release_region(TCOBASE, 0x20);
-unreg_smi_en:
- release_region(SMI_EN, 4);
-out_unmap:
+unreg_tco:
+ release_region(iTCO_wdt_private.tco_res->start,
+ resource_size(iTCO_wdt_private.tco_res));
+unreg_smi:
+ release_region(iTCO_wdt_private.smi_res->start,
+ resource_size(iTCO_wdt_private.smi_res));
+unmap_gcs:
if (iTCO_wdt_private.iTCO_version == 2)
iounmap(iTCO_wdt_private.gcs);
-out:
- iTCO_wdt_private.ACPIBASE = 0;
- return ret;
-}
-
-static void __devexit iTCO_wdt_cleanup(void)
-{
- /* Stop the timer before we leave */
- if (!nowayout)
- iTCO_wdt_stop();
-
- /* Deregister */
- misc_deregister(&iTCO_wdt_miscdev);
- release_region(TCOBASE, 0x20);
- release_region(SMI_EN, 4);
+unreg_gcs:
if (iTCO_wdt_private.iTCO_version == 2)
- iounmap(iTCO_wdt_private.gcs);
- pci_dev_put(iTCO_wdt_private.pdev);
- iTCO_wdt_private.ACPIBASE = 0;
-}
-
-static int __devinit iTCO_wdt_probe(struct platform_device *dev)
-{
- int ret = -ENODEV;
- int found = 0;
- struct pci_dev *pdev = NULL;
- const struct pci_device_id *ent;
-
- spin_lock_init(&iTCO_wdt_private.io_lock);
-
- for_each_pci_dev(pdev) {
- ent = pci_match_id(iTCO_wdt_pci_tbl, pdev);
- if (ent) {
- found++;
- ret = iTCO_wdt_init(pdev, ent, dev);
- if (!ret)
- break;
- }
- }
-
- if (!found)
- pr_info("No device detected\n");
+ release_mem_region(iTCO_wdt_private.gcs_res->start,
+ resource_size(iTCO_wdt_private.gcs_res));
+out:
+ iTCO_wdt_private.tco_res = NULL;
+ iTCO_wdt_private.smi_res = NULL;
+ iTCO_wdt_private.gcs_res = NULL;
+ iTCO_wdt_private.gcs = NULL;
return ret;
}
static int __devexit iTCO_wdt_remove(struct platform_device *dev)
{
- if (iTCO_wdt_private.ACPIBASE)
+ if (iTCO_wdt_private.tco_res || iTCO_wdt_private.smi_res)
iTCO_wdt_cleanup();
return 0;
if (err)
return err;
- iTCO_wdt_platform_device = platform_device_register_simple(DRV_NAME,
- -1, NULL, 0);
- if (IS_ERR(iTCO_wdt_platform_device)) {
- err = PTR_ERR(iTCO_wdt_platform_device);
- goto unreg_platform_driver;
- }
-
return 0;
-
-unreg_platform_driver:
- platform_driver_unregister(&iTCO_wdt_driver);
- return err;
}
static void __exit iTCO_wdt_cleanup_module(void)
{
- platform_device_unregister(iTCO_wdt_platform_device);
platform_driver_unregister(&iTCO_wdt_driver);
pr_info("Watchdog Module Unloaded\n");
}
#include <linux/fs.h>
#include <linux/miscdevice.h>
#include <linux/watchdog.h>
-#include <linux/platform_device.h>
+#include <linux/of_platform.h>
#include <linux/uaccess.h>
#include <linux/clk.h>
#include <linux/io.h>
-#include <lantiq.h>
+#include <lantiq_soc.h>
-/* Section 3.4 of the datasheet
+/*
+ * Section 3.4 of the datasheet
* The password sequence protects the WDT control register from unintended
* write actions, which might cause malfunction of the WDT.
*
{
/* write the first password magic */
ltq_w32(LTQ_WDT_PW1, ltq_wdt_membase + LTQ_WDT_CR);
- /* write the second password magic with no config
+ /*
+ * write the second password magic with no config
* this turns the watchdog off
*/
ltq_w32(LTQ_WDT_PW2, ltq_wdt_membase + LTQ_WDT_CR);
.fops = <q_wdt_fops,
};
-static int __init
+static int __devinit
ltq_wdt_probe(struct platform_device *pdev)
{
struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
dev_err(&pdev->dev, "cannot obtain I/O memory region");
return -ENOENT;
}
- res = devm_request_mem_region(&pdev->dev, res->start,
- resource_size(res), dev_name(&pdev->dev));
- if (!res) {
- dev_err(&pdev->dev, "cannot request I/O memory region");
- return -EBUSY;
- }
- ltq_wdt_membase = devm_ioremap_nocache(&pdev->dev, res->start,
- resource_size(res));
+
+ ltq_wdt_membase = devm_request_and_ioremap(&pdev->dev, res);
if (!ltq_wdt_membase) {
dev_err(&pdev->dev, "cannot remap I/O memory region\n");
return -ENOMEM;
}
/* we do not need to enable the clock as it is always running */
- clk = clk_get(&pdev->dev, "io");
- WARN_ON(!clk);
+ clk = clk_get_io();
+ if (IS_ERR(clk)) {
+ dev_err(&pdev->dev, "Failed to get clock\n");
+ return -ENOENT;
+ }
ltq_io_region_clk_rate = clk_get_rate(clk);
clk_put(clk);
+ /* find out if the watchdog caused the last reboot */
if (ltq_reset_cause() == LTQ_RST_CAUSE_WDTRST)
ltq_wdt_bootstatus = WDIOF_CARDRESET;
+ dev_info(&pdev->dev, "Init done\n");
return misc_register(<q_wdt_miscdev);
}
return 0;
}
+static const struct of_device_id ltq_wdt_match[] = {
+ { .compatible = "lantiq,wdt" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, ltq_wdt_match);
static struct platform_driver ltq_wdt_driver = {
+ .probe = ltq_wdt_probe,
.remove = __devexit_p(ltq_wdt_remove),
.driver = {
- .name = "ltq_wdt",
+ .name = "wdt",
.owner = THIS_MODULE,
+ .of_match_table = ltq_wdt_match,
},
};
-static int __init
-init_ltq_wdt(void)
-{
- return platform_driver_probe(<q_wdt_driver, ltq_wdt_probe);
-}
-
-static void __exit
-exit_ltq_wdt(void)
-{
- return platform_driver_unregister(<q_wdt_driver);
-}
-
-module_init(init_ltq_wdt);
-module_exit(exit_ltq_wdt);
+module_platform_driver(ltq_wdt_driver);
module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
-
MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
MODULE_DESCRIPTION("Lantiq SoC Watchdog");
MODULE_LICENSE("GPL");
#include <linux/amba/bus.h>
#include <linux/bitops.h>
#include <linux/clk.h>
-#include <linux/fs.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/ioport.h>
#include <linux/kernel.h>
#include <linux/math64.h>
-#include <linux/miscdevice.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/pm.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/types.h>
-#include <linux/uaccess.h>
#include <linux/watchdog.h>
/* default timeout in seconds */
/**
* struct sp805_wdt: sp805 wdt device structure
+ * @wdd: instance of struct watchdog_device
* @lock: spin lock protecting dev structure and io access
* @base: base address of wdt
* @clk: clock structure of wdt
* @timeout: current programmed timeout
*/
struct sp805_wdt {
+ struct watchdog_device wdd;
spinlock_t lock;
void __iomem *base;
struct clk *clk;
struct amba_device *adev;
- unsigned long status;
- #define WDT_BUSY 0
- #define WDT_CAN_BE_CLOSED 1
unsigned int load_val;
unsigned int timeout;
};
-/* local variables */
-static struct sp805_wdt *wdt;
static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
+MODULE_PARM_DESC(nowayout,
+ "Set to 1 to keep watchdog running after device release");
/* This routine finds load value that will reset system in required timout */
-static void wdt_setload(unsigned int timeout)
+static int wdt_setload(struct watchdog_device *wdd, unsigned int timeout)
{
+ struct sp805_wdt *wdt = watchdog_get_drvdata(wdd);
u64 load, rate;
rate = clk_get_rate(wdt->clk);
/* roundup timeout to closest positive integer value */
wdt->timeout = div_u64((load + 1) * 2 + (rate / 2), rate);
spin_unlock(&wdt->lock);
+
+ return 0;
}
/* returns number of seconds left for reset to occur */
-static u32 wdt_timeleft(void)
+static unsigned int wdt_timeleft(struct watchdog_device *wdd)
{
+ struct sp805_wdt *wdt = watchdog_get_drvdata(wdd);
u64 load, rate;
rate = clk_get_rate(wdt->clk);
return div_u64(load, rate);
}
-/* enables watchdog timers reset */
-static void wdt_enable(void)
+static int wdt_config(struct watchdog_device *wdd, bool ping)
{
- spin_lock(&wdt->lock);
+ struct sp805_wdt *wdt = watchdog_get_drvdata(wdd);
+ int ret;
- writel_relaxed(UNLOCK, wdt->base + WDTLOCK);
- writel_relaxed(wdt->load_val, wdt->base + WDTLOAD);
- writel_relaxed(INT_MASK, wdt->base + WDTINTCLR);
- writel_relaxed(INT_ENABLE | RESET_ENABLE, wdt->base + WDTCONTROL);
- writel_relaxed(LOCK, wdt->base + WDTLOCK);
+ if (!ping) {
+ ret = clk_prepare(wdt->clk);
+ if (ret) {
+ dev_err(&wdt->adev->dev, "clock prepare fail");
+ return ret;
+ }
- /* Flush posted writes. */
- readl_relaxed(wdt->base + WDTLOCK);
- spin_unlock(&wdt->lock);
-}
+ ret = clk_enable(wdt->clk);
+ if (ret) {
+ dev_err(&wdt->adev->dev, "clock enable fail");
+ clk_unprepare(wdt->clk);
+ return ret;
+ }
+ }
-/* disables watchdog timers reset */
-static void wdt_disable(void)
-{
spin_lock(&wdt->lock);
writel_relaxed(UNLOCK, wdt->base + WDTLOCK);
- writel_relaxed(0, wdt->base + WDTCONTROL);
+ writel_relaxed(wdt->load_val, wdt->base + WDTLOAD);
+
+ if (!ping) {
+ writel_relaxed(INT_MASK, wdt->base + WDTINTCLR);
+ writel_relaxed(INT_ENABLE | RESET_ENABLE, wdt->base +
+ WDTCONTROL);
+ }
+
writel_relaxed(LOCK, wdt->base + WDTLOCK);
/* Flush posted writes. */
readl_relaxed(wdt->base + WDTLOCK);
spin_unlock(&wdt->lock);
+
+ return 0;
}
-static ssize_t sp805_wdt_write(struct file *file, const char *data,
- size_t len, loff_t *ppos)
+static int wdt_ping(struct watchdog_device *wdd)
{
- if (len) {
- if (!nowayout) {
- size_t i;
-
- clear_bit(WDT_CAN_BE_CLOSED, &wdt->status);
-
- for (i = 0; i != len; i++) {
- char c;
-
- if (get_user(c, data + i))
- return -EFAULT;
- /* Check for Magic Close character */
- if (c == 'V') {
- set_bit(WDT_CAN_BE_CLOSED,
- &wdt->status);
- break;
- }
- }
- }
- wdt_enable();
- }
- return len;
+ return wdt_config(wdd, true);
}
-static const struct watchdog_info ident = {
- .options = WDIOF_MAGICCLOSE | WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
- .identity = MODULE_NAME,
-};
-
-static long sp805_wdt_ioctl(struct file *file, unsigned int cmd,
- unsigned long arg)
+/* enables watchdog timers reset */
+static int wdt_enable(struct watchdog_device *wdd)
{
- int ret = -ENOTTY;
- unsigned int timeout;
-
- switch (cmd) {
- case WDIOC_GETSUPPORT:
- ret = copy_to_user((struct watchdog_info *)arg, &ident,
- sizeof(ident)) ? -EFAULT : 0;
- break;
-
- case WDIOC_GETSTATUS:
- ret = put_user(0, (int *)arg);
- break;
-
- case WDIOC_KEEPALIVE:
- wdt_enable();
- ret = 0;
- break;
-
- case WDIOC_SETTIMEOUT:
- ret = get_user(timeout, (unsigned int *)arg);
- if (ret)
- break;
-
- wdt_setload(timeout);
-
- wdt_enable();
- /* Fall through */
-
- case WDIOC_GETTIMEOUT:
- ret = put_user(wdt->timeout, (unsigned int *)arg);
- break;
- case WDIOC_GETTIMELEFT:
- ret = put_user(wdt_timeleft(), (unsigned int *)arg);
- break;
- }
- return ret;
+ return wdt_config(wdd, false);
}
-static int sp805_wdt_open(struct inode *inode, struct file *file)
+/* disables watchdog timers reset */
+static int wdt_disable(struct watchdog_device *wdd)
{
- int ret = 0;
-
- if (test_and_set_bit(WDT_BUSY, &wdt->status))
- return -EBUSY;
-
- ret = clk_enable(wdt->clk);
- if (ret) {
- dev_err(&wdt->adev->dev, "clock enable fail");
- goto err;
- }
-
- wdt_enable();
+ struct sp805_wdt *wdt = watchdog_get_drvdata(wdd);
- /* can not be closed, once enabled */
- clear_bit(WDT_CAN_BE_CLOSED, &wdt->status);
- return nonseekable_open(inode, file);
+ spin_lock(&wdt->lock);
-err:
- clear_bit(WDT_BUSY, &wdt->status);
- return ret;
-}
+ writel_relaxed(UNLOCK, wdt->base + WDTLOCK);
+ writel_relaxed(0, wdt->base + WDTCONTROL);
+ writel_relaxed(LOCK, wdt->base + WDTLOCK);
-static int sp805_wdt_release(struct inode *inode, struct file *file)
-{
- if (!test_bit(WDT_CAN_BE_CLOSED, &wdt->status)) {
- clear_bit(WDT_BUSY, &wdt->status);
- dev_warn(&wdt->adev->dev, "Device closed unexpectedly\n");
- return 0;
- }
+ /* Flush posted writes. */
+ readl_relaxed(wdt->base + WDTLOCK);
+ spin_unlock(&wdt->lock);
- wdt_disable();
clk_disable(wdt->clk);
- clear_bit(WDT_BUSY, &wdt->status);
+ clk_unprepare(wdt->clk);
return 0;
}
-static const struct file_operations sp805_wdt_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .write = sp805_wdt_write,
- .unlocked_ioctl = sp805_wdt_ioctl,
- .open = sp805_wdt_open,
- .release = sp805_wdt_release,
+static const struct watchdog_info wdt_info = {
+ .options = WDIOF_MAGICCLOSE | WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+ .identity = MODULE_NAME,
};
-static struct miscdevice sp805_wdt_miscdev = {
- .minor = WATCHDOG_MINOR,
- .name = "watchdog",
- .fops = &sp805_wdt_fops,
+static const struct watchdog_ops wdt_ops = {
+ .owner = THIS_MODULE,
+ .start = wdt_enable,
+ .stop = wdt_disable,
+ .ping = wdt_ping,
+ .set_timeout = wdt_setload,
+ .get_timeleft = wdt_timeleft,
};
static int __devinit
sp805_wdt_probe(struct amba_device *adev, const struct amba_id *id)
{
+ struct sp805_wdt *wdt;
int ret = 0;
if (!devm_request_mem_region(&adev->dev, adev->res.start,
}
wdt->adev = adev;
+ wdt->wdd.info = &wdt_info;
+ wdt->wdd.ops = &wdt_ops;
+
spin_lock_init(&wdt->lock);
- wdt_setload(DEFAULT_TIMEOUT);
+ watchdog_set_nowayout(&wdt->wdd, nowayout);
+ watchdog_set_drvdata(&wdt->wdd, wdt);
+ wdt_setload(&wdt->wdd, DEFAULT_TIMEOUT);
- ret = misc_register(&sp805_wdt_miscdev);
- if (ret < 0) {
- dev_warn(&adev->dev, "cannot register misc device\n");
- goto err_misc_register;
+ ret = watchdog_register_device(&wdt->wdd);
+ if (ret) {
+ dev_err(&adev->dev, "watchdog_register_device() failed: %d\n",
+ ret);
+ goto err_register;
}
+ amba_set_drvdata(adev, wdt);
dev_info(&adev->dev, "registration successful\n");
return 0;
-err_misc_register:
+err_register:
clk_put(wdt->clk);
err:
dev_err(&adev->dev, "Probe Failed!!!\n");
static int __devexit sp805_wdt_remove(struct amba_device *adev)
{
- misc_deregister(&sp805_wdt_miscdev);
+ struct sp805_wdt *wdt = amba_get_drvdata(adev);
+
+ watchdog_unregister_device(&wdt->wdd);
+ amba_set_drvdata(adev, NULL);
+ watchdog_set_drvdata(&wdt->wdd, NULL);
clk_put(wdt->clk);
return 0;
#ifdef CONFIG_PM
static int sp805_wdt_suspend(struct device *dev)
{
- if (test_bit(WDT_BUSY, &wdt->status)) {
- wdt_disable();
- clk_disable(wdt->clk);
- }
+ struct sp805_wdt *wdt = dev_get_drvdata(dev);
+
+ if (watchdog_active(&wdt->wdd))
+ return wdt_disable(&wdt->wdd);
return 0;
}
static int sp805_wdt_resume(struct device *dev)
{
- int ret = 0;
+ struct sp805_wdt *wdt = dev_get_drvdata(dev);
- if (test_bit(WDT_BUSY, &wdt->status)) {
- ret = clk_enable(wdt->clk);
- if (ret) {
- dev_err(dev, "clock enable fail");
- return ret;
- }
- wdt_enable();
- }
+ if (watchdog_active(&wdt->wdd))
+ return wdt_enable(&wdt->wdd);
- return ret;
+ return 0;
}
#endif /* CONFIG_PM */
module_amba_driver(sp805_wdt_driver);
-module_param(nowayout, bool, 0);
-MODULE_PARM_DESC(nowayout,
- "Set to 1 to keep watchdog running after device release");
-
MODULE_AUTHOR("Viresh Kumar <viresh.kumar@st.com>");
MODULE_DESCRIPTION("ARM SP805 Watchdog Driver");
MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
static void wdt_timer_tick(unsigned long data)
{
if (time_before(jiffies, next_heartbeat) ||
- (!test_bit(WDOG_ACTIVE, &wdt_dev.status))) {
+ (!watchdog_active(&wdt_dev))) {
wdt_reset();
mod_timer(&timer, jiffies + WDT_HEARTBEAT);
} else
#include <linux/kernel.h> /* For printk/panic/... */
#include <linux/watchdog.h> /* For watchdog specific items */
#include <linux/init.h> /* For __init/__exit/... */
+#include <linux/idr.h> /* For ida_* macros */
+#include <linux/err.h> /* For IS_ERR macros */
-#include "watchdog_dev.h" /* For watchdog_dev_register/... */
+#include "watchdog_core.h" /* For watchdog_dev_register/... */
+
+static DEFINE_IDA(watchdog_ida);
+static struct class *watchdog_class;
/**
* watchdog_register_device() - register a watchdog device
*/
int watchdog_register_device(struct watchdog_device *wdd)
{
- int ret;
+ int ret, id, devno;
if (wdd == NULL || wdd->info == NULL || wdd->ops == NULL)
return -EINVAL;
* corrupted in a later stage then we expect a kernel panic!
*/
- /* We only support 1 watchdog device via the /dev/watchdog interface */
+ mutex_init(&wdd->lock);
+ id = ida_simple_get(&watchdog_ida, 0, MAX_DOGS, GFP_KERNEL);
+ if (id < 0)
+ return id;
+ wdd->id = id;
+
ret = watchdog_dev_register(wdd);
if (ret) {
- pr_err("error registering /dev/watchdog (err=%d)\n", ret);
+ ida_simple_remove(&watchdog_ida, id);
+ if (!(id == 0 && ret == -EBUSY))
+ return ret;
+
+ /* Retry in case a legacy watchdog module exists */
+ id = ida_simple_get(&watchdog_ida, 1, MAX_DOGS, GFP_KERNEL);
+ if (id < 0)
+ return id;
+ wdd->id = id;
+
+ ret = watchdog_dev_register(wdd);
+ if (ret) {
+ ida_simple_remove(&watchdog_ida, id);
+ return ret;
+ }
+ }
+
+ devno = wdd->cdev.dev;
+ wdd->dev = device_create(watchdog_class, wdd->parent, devno,
+ NULL, "watchdog%d", wdd->id);
+ if (IS_ERR(wdd->dev)) {
+ watchdog_dev_unregister(wdd);
+ ida_simple_remove(&watchdog_ida, id);
+ ret = PTR_ERR(wdd->dev);
return ret;
}
void watchdog_unregister_device(struct watchdog_device *wdd)
{
int ret;
+ int devno = wdd->cdev.dev;
if (wdd == NULL)
return;
ret = watchdog_dev_unregister(wdd);
if (ret)
pr_err("error unregistering /dev/watchdog (err=%d)\n", ret);
+ device_destroy(watchdog_class, devno);
+ ida_simple_remove(&watchdog_ida, wdd->id);
+ wdd->dev = NULL;
}
EXPORT_SYMBOL_GPL(watchdog_unregister_device);
+static int __init watchdog_init(void)
+{
+ int err;
+
+ watchdog_class = class_create(THIS_MODULE, "watchdog");
+ if (IS_ERR(watchdog_class)) {
+ pr_err("couldn't create class\n");
+ return PTR_ERR(watchdog_class);
+ }
+
+ err = watchdog_dev_init();
+ if (err < 0) {
+ class_destroy(watchdog_class);
+ return err;
+ }
+
+ return 0;
+}
+
+static void __exit watchdog_exit(void)
+{
+ watchdog_dev_exit();
+ class_destroy(watchdog_class);
+ ida_destroy(&watchdog_ida);
+}
+
+subsys_initcall(watchdog_init);
+module_exit(watchdog_exit);
+
MODULE_AUTHOR("Alan Cox <alan@lxorguk.ukuu.org.uk>");
MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>");
MODULE_DESCRIPTION("WatchDog Timer Driver Core");
--- /dev/null
+/*
+ * watchdog_core.h
+ *
+ * (c) Copyright 2008-2011 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ * All Rights Reserved.
+ *
+ * (c) Copyright 2008-2011 Wim Van Sebroeck <wim@iguana.be>.
+ *
+ * This source code is part of the generic code that can be used
+ * by all the watchdog timer drivers.
+ *
+ * Based on source code of the following authors:
+ * Matt Domsch <Matt_Domsch@dell.com>,
+ * Rob Radez <rob@osinvestor.com>,
+ * Rusty Lynch <rusty@linux.co.intel.com>
+ * Satyam Sharma <satyam@infradead.org>
+ * Randy Dunlap <randy.dunlap@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * Neither Alan Cox, CymruNet Ltd., Wim Van Sebroeck nor Iguana vzw.
+ * admit liability nor provide warranty for any of this software.
+ * This material is provided "AS-IS" and at no charge.
+ */
+
+#define MAX_DOGS 32 /* Maximum number of watchdog devices */
+
+/*
+ * Functions/procedures to be called by the core
+ */
+extern int watchdog_dev_register(struct watchdog_device *);
+extern int watchdog_dev_unregister(struct watchdog_device *);
+extern int __init watchdog_dev_init(void);
+extern void __exit watchdog_dev_exit(void);
#include <linux/init.h> /* For __init/__exit/... */
#include <linux/uaccess.h> /* For copy_to_user/put_user/... */
-/* make sure we only register one /dev/watchdog device */
-static unsigned long watchdog_dev_busy;
+#include "watchdog_core.h"
+
+/* the dev_t structure to store the dynamically allocated watchdog devices */
+static dev_t watchdog_devt;
/* the watchdog device behind /dev/watchdog */
-static struct watchdog_device *wdd;
+static struct watchdog_device *old_wdd;
/*
* watchdog_ping: ping the watchdog.
static int watchdog_ping(struct watchdog_device *wddev)
{
- if (test_bit(WDOG_ACTIVE, &wddev->status)) {
- if (wddev->ops->ping)
- return wddev->ops->ping(wddev); /* ping the watchdog */
- else
- return wddev->ops->start(wddev); /* restart watchdog */
+ int err = 0;
+
+ mutex_lock(&wddev->lock);
+
+ if (test_bit(WDOG_UNREGISTERED, &wddev->status)) {
+ err = -ENODEV;
+ goto out_ping;
}
- return 0;
+
+ if (!watchdog_active(wddev))
+ goto out_ping;
+
+ if (wddev->ops->ping)
+ err = wddev->ops->ping(wddev); /* ping the watchdog */
+ else
+ err = wddev->ops->start(wddev); /* restart watchdog */
+
+out_ping:
+ mutex_unlock(&wddev->lock);
+ return err;
}
/*
static int watchdog_start(struct watchdog_device *wddev)
{
- int err;
+ int err = 0;
- if (!test_bit(WDOG_ACTIVE, &wddev->status)) {
- err = wddev->ops->start(wddev);
- if (err < 0)
- return err;
+ mutex_lock(&wddev->lock);
- set_bit(WDOG_ACTIVE, &wddev->status);
+ if (test_bit(WDOG_UNREGISTERED, &wddev->status)) {
+ err = -ENODEV;
+ goto out_start;
}
- return 0;
+
+ if (watchdog_active(wddev))
+ goto out_start;
+
+ err = wddev->ops->start(wddev);
+ if (err == 0)
+ set_bit(WDOG_ACTIVE, &wddev->status);
+
+out_start:
+ mutex_unlock(&wddev->lock);
+ return err;
}
/*
static int watchdog_stop(struct watchdog_device *wddev)
{
- int err = -EBUSY;
+ int err = 0;
- if (test_bit(WDOG_NO_WAY_OUT, &wddev->status)) {
- pr_info("%s: nowayout prevents watchdog to be stopped!\n",
- wddev->info->identity);
- return err;
+ mutex_lock(&wddev->lock);
+
+ if (test_bit(WDOG_UNREGISTERED, &wddev->status)) {
+ err = -ENODEV;
+ goto out_stop;
}
- if (test_bit(WDOG_ACTIVE, &wddev->status)) {
- err = wddev->ops->stop(wddev);
- if (err < 0)
- return err;
+ if (!watchdog_active(wddev))
+ goto out_stop;
+ if (test_bit(WDOG_NO_WAY_OUT, &wddev->status)) {
+ dev_info(wddev->dev, "nowayout prevents watchdog being stopped!\n");
+ err = -EBUSY;
+ goto out_stop;
+ }
+
+ err = wddev->ops->stop(wddev);
+ if (err == 0)
clear_bit(WDOG_ACTIVE, &wddev->status);
+
+out_stop:
+ mutex_unlock(&wddev->lock);
+ return err;
+}
+
+/*
+ * watchdog_get_status: wrapper to get the watchdog status
+ * @wddev: the watchdog device to get the status from
+ * @status: the status of the watchdog device
+ *
+ * Get the watchdog's status flags.
+ */
+
+static int watchdog_get_status(struct watchdog_device *wddev,
+ unsigned int *status)
+{
+ int err = 0;
+
+ *status = 0;
+ if (!wddev->ops->status)
+ return -EOPNOTSUPP;
+
+ mutex_lock(&wddev->lock);
+
+ if (test_bit(WDOG_UNREGISTERED, &wddev->status)) {
+ err = -ENODEV;
+ goto out_status;
}
- return 0;
+
+ *status = wddev->ops->status(wddev);
+
+out_status:
+ mutex_unlock(&wddev->lock);
+ return err;
+}
+
+/*
+ * watchdog_set_timeout: set the watchdog timer timeout
+ * @wddev: the watchdog device to set the timeout for
+ * @timeout: timeout to set in seconds
+ */
+
+static int watchdog_set_timeout(struct watchdog_device *wddev,
+ unsigned int timeout)
+{
+ int err;
+
+ if ((wddev->ops->set_timeout == NULL) ||
+ !(wddev->info->options & WDIOF_SETTIMEOUT))
+ return -EOPNOTSUPP;
+
+ if ((wddev->max_timeout != 0) &&
+ (timeout < wddev->min_timeout || timeout > wddev->max_timeout))
+ return -EINVAL;
+
+ mutex_lock(&wddev->lock);
+
+ if (test_bit(WDOG_UNREGISTERED, &wddev->status)) {
+ err = -ENODEV;
+ goto out_timeout;
+ }
+
+ err = wddev->ops->set_timeout(wddev, timeout);
+
+out_timeout:
+ mutex_unlock(&wddev->lock);
+ return err;
+}
+
+/*
+ * watchdog_get_timeleft: wrapper to get the time left before a reboot
+ * @wddev: the watchdog device to get the remaining time from
+ * @timeleft: the time that's left
+ *
+ * Get the time before a watchdog will reboot (if not pinged).
+ */
+
+static int watchdog_get_timeleft(struct watchdog_device *wddev,
+ unsigned int *timeleft)
+{
+ int err = 0;
+
+ *timeleft = 0;
+ if (!wddev->ops->get_timeleft)
+ return -EOPNOTSUPP;
+
+ mutex_lock(&wddev->lock);
+
+ if (test_bit(WDOG_UNREGISTERED, &wddev->status)) {
+ err = -ENODEV;
+ goto out_timeleft;
+ }
+
+ *timeleft = wddev->ops->get_timeleft(wddev);
+
+out_timeleft:
+ mutex_unlock(&wddev->lock);
+ return err;
+}
+
+/*
+ * watchdog_ioctl_op: call the watchdog drivers ioctl op if defined
+ * @wddev: the watchdog device to do the ioctl on
+ * @cmd: watchdog command
+ * @arg: argument pointer
+ */
+
+static int watchdog_ioctl_op(struct watchdog_device *wddev, unsigned int cmd,
+ unsigned long arg)
+{
+ int err;
+
+ if (!wddev->ops->ioctl)
+ return -ENOIOCTLCMD;
+
+ mutex_lock(&wddev->lock);
+
+ if (test_bit(WDOG_UNREGISTERED, &wddev->status)) {
+ err = -ENODEV;
+ goto out_ioctl;
+ }
+
+ err = wddev->ops->ioctl(wddev, cmd, arg);
+
+out_ioctl:
+ mutex_unlock(&wddev->lock);
+ return err;
}
/*
static ssize_t watchdog_write(struct file *file, const char __user *data,
size_t len, loff_t *ppos)
{
+ struct watchdog_device *wdd = file->private_data;
size_t i;
char c;
static long watchdog_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
+ struct watchdog_device *wdd = file->private_data;
void __user *argp = (void __user *)arg;
int __user *p = argp;
unsigned int val;
int err;
- if (wdd->ops->ioctl) {
- err = wdd->ops->ioctl(wdd, cmd, arg);
- if (err != -ENOIOCTLCMD)
- return err;
- }
+ err = watchdog_ioctl_op(wdd, cmd, arg);
+ if (err != -ENOIOCTLCMD)
+ return err;
switch (cmd) {
case WDIOC_GETSUPPORT:
return copy_to_user(argp, wdd->info,
sizeof(struct watchdog_info)) ? -EFAULT : 0;
case WDIOC_GETSTATUS:
- val = wdd->ops->status ? wdd->ops->status(wdd) : 0;
+ err = watchdog_get_status(wdd, &val);
+ if (err)
+ return err;
return put_user(val, p);
case WDIOC_GETBOOTSTATUS:
return put_user(wdd->bootstatus, p);
watchdog_ping(wdd);
return 0;
case WDIOC_SETTIMEOUT:
- if ((wdd->ops->set_timeout == NULL) ||
- !(wdd->info->options & WDIOF_SETTIMEOUT))
- return -EOPNOTSUPP;
if (get_user(val, p))
return -EFAULT;
- if ((wdd->max_timeout != 0) &&
- (val < wdd->min_timeout || val > wdd->max_timeout))
- return -EINVAL;
- err = wdd->ops->set_timeout(wdd, val);
+ err = watchdog_set_timeout(wdd, val);
if (err < 0)
return err;
/* If the watchdog is active then we send a keepalive ping
return -EOPNOTSUPP;
return put_user(wdd->timeout, p);
case WDIOC_GETTIMELEFT:
- if (!wdd->ops->get_timeleft)
- return -EOPNOTSUPP;
-
- return put_user(wdd->ops->get_timeleft(wdd), p);
+ err = watchdog_get_timeleft(wdd, &val);
+ if (err)
+ return err;
+ return put_user(val, p);
default:
return -ENOTTY;
}
}
/*
- * watchdog_open: open the /dev/watchdog device.
+ * watchdog_open: open the /dev/watchdog* devices.
* @inode: inode of device
* @file: file handle to device
*
- * When the /dev/watchdog device gets opened, we start the watchdog.
+ * When the /dev/watchdog* device gets opened, we start the watchdog.
* Watch out: the /dev/watchdog device is single open, so we make sure
* it can only be opened once.
*/
static int watchdog_open(struct inode *inode, struct file *file)
{
int err = -EBUSY;
+ struct watchdog_device *wdd;
+
+ /* Get the corresponding watchdog device */
+ if (imajor(inode) == MISC_MAJOR)
+ wdd = old_wdd;
+ else
+ wdd = container_of(inode->i_cdev, struct watchdog_device, cdev);
/* the watchdog is single open! */
if (test_and_set_bit(WDOG_DEV_OPEN, &wdd->status))
if (err < 0)
goto out_mod;
+ file->private_data = wdd;
+
+ if (wdd->ops->ref)
+ wdd->ops->ref(wdd);
+
/* dev/watchdog is a virtual (and thus non-seekable) filesystem */
return nonseekable_open(inode, file);
}
/*
- * watchdog_release: release the /dev/watchdog device.
- * @inode: inode of device
- * @file: file handle to device
+ * watchdog_release: release the watchdog device.
+ * @inode: inode of device
+ * @file: file handle to device
*
* This is the code for when /dev/watchdog gets closed. We will only
* stop the watchdog when we have received the magic char (and nowayout
static int watchdog_release(struct inode *inode, struct file *file)
{
+ struct watchdog_device *wdd = file->private_data;
int err = -EBUSY;
/*
/* If the watchdog was not stopped, send a keepalive ping */
if (err < 0) {
- pr_crit("%s: watchdog did not stop!\n", wdd->info->identity);
+ mutex_lock(&wdd->lock);
+ if (!test_bit(WDOG_UNREGISTERED, &wdd->status))
+ dev_crit(wdd->dev, "watchdog did not stop!\n");
+ mutex_unlock(&wdd->lock);
watchdog_ping(wdd);
}
/* make sure that /dev/watchdog can be re-opened */
clear_bit(WDOG_DEV_OPEN, &wdd->status);
+ /* Note wdd may be gone after this, do not use after this! */
+ if (wdd->ops->unref)
+ wdd->ops->unref(wdd);
+
return 0;
}
};
/*
- * watchdog_dev_register:
+ * watchdog_dev_register: register a watchdog device
* @watchdog: watchdog device
*
- * Register a watchdog device as /dev/watchdog. /dev/watchdog
- * is actually a miscdevice and thus we set it up like that.
+ * Register a watchdog device including handling the legacy
+ * /dev/watchdog node. /dev/watchdog is actually a miscdevice and
+ * thus we set it up like that.
*/
int watchdog_dev_register(struct watchdog_device *watchdog)
{
- int err;
-
- /* Only one device can register for /dev/watchdog */
- if (test_and_set_bit(0, &watchdog_dev_busy)) {
- pr_err("only one watchdog can use /dev/watchdog\n");
- return -EBUSY;
+ int err, devno;
+
+ if (watchdog->id == 0) {
+ watchdog_miscdev.parent = watchdog->parent;
+ err = misc_register(&watchdog_miscdev);
+ if (err != 0) {
+ pr_err("%s: cannot register miscdev on minor=%d (err=%d).\n",
+ watchdog->info->identity, WATCHDOG_MINOR, err);
+ if (err == -EBUSY)
+ pr_err("%s: a legacy watchdog module is probably present.\n",
+ watchdog->info->identity);
+ return err;
+ }
+ old_wdd = watchdog;
}
- wdd = watchdog;
-
- err = misc_register(&watchdog_miscdev);
- if (err != 0) {
- pr_err("%s: cannot register miscdev on minor=%d (err=%d)\n",
- watchdog->info->identity, WATCHDOG_MINOR, err);
- goto out;
+ /* Fill in the data structures */
+ devno = MKDEV(MAJOR(watchdog_devt), watchdog->id);
+ cdev_init(&watchdog->cdev, &watchdog_fops);
+ watchdog->cdev.owner = watchdog->ops->owner;
+
+ /* Add the device */
+ err = cdev_add(&watchdog->cdev, devno, 1);
+ if (err) {
+ pr_err("watchdog%d unable to add device %d:%d\n",
+ watchdog->id, MAJOR(watchdog_devt), watchdog->id);
+ if (watchdog->id == 0) {
+ misc_deregister(&watchdog_miscdev);
+ old_wdd = NULL;
+ }
}
-
- return 0;
-
-out:
- wdd = NULL;
- clear_bit(0, &watchdog_dev_busy);
return err;
}
/*
- * watchdog_dev_unregister:
+ * watchdog_dev_unregister: unregister a watchdog device
* @watchdog: watchdog device
*
- * Deregister the /dev/watchdog device.
+ * Unregister the watchdog and if needed the legacy /dev/watchdog device.
*/
int watchdog_dev_unregister(struct watchdog_device *watchdog)
{
- /* Check that a watchdog device was registered in the past */
- if (!test_bit(0, &watchdog_dev_busy) || !wdd)
- return -ENODEV;
-
- /* We can only unregister the watchdog device that was registered */
- if (watchdog != wdd) {
- pr_err("%s: watchdog was not registered as /dev/watchdog\n",
- watchdog->info->identity);
- return -ENODEV;
+ mutex_lock(&watchdog->lock);
+ set_bit(WDOG_UNREGISTERED, &watchdog->status);
+ mutex_unlock(&watchdog->lock);
+
+ cdev_del(&watchdog->cdev);
+ if (watchdog->id == 0) {
+ misc_deregister(&watchdog_miscdev);
+ old_wdd = NULL;
}
-
- misc_deregister(&watchdog_miscdev);
- wdd = NULL;
- clear_bit(0, &watchdog_dev_busy);
return 0;
}
+
+/*
+ * watchdog_dev_init: init dev part of watchdog core
+ *
+ * Allocate a range of chardev nodes to use for watchdog devices
+ */
+
+int __init watchdog_dev_init(void)
+{
+ int err = alloc_chrdev_region(&watchdog_devt, 0, MAX_DOGS, "watchdog");
+ if (err < 0)
+ pr_err("watchdog: unable to allocate char dev region\n");
+ return err;
+}
+
+/*
+ * watchdog_dev_exit: exit dev part of watchdog core
+ *
+ * Release the range of chardev nodes used for watchdog devices
+ */
+
+void __exit watchdog_dev_exit(void)
+{
+ unregister_chrdev_region(watchdog_devt, MAX_DOGS);
+}
+++ /dev/null
-/*
- * watchdog_core.h
- *
- * (c) Copyright 2008-2011 Alan Cox <alan@lxorguk.ukuu.org.uk>,
- * All Rights Reserved.
- *
- * (c) Copyright 2008-2011 Wim Van Sebroeck <wim@iguana.be>.
- *
- * This source code is part of the generic code that can be used
- * by all the watchdog timer drivers.
- *
- * Based on source code of the following authors:
- * Matt Domsch <Matt_Domsch@dell.com>,
- * Rob Radez <rob@osinvestor.com>,
- * Rusty Lynch <rusty@linux.co.intel.com>
- * Satyam Sharma <satyam@infradead.org>
- * Randy Dunlap <randy.dunlap@oracle.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Neither Alan Cox, CymruNet Ltd., Wim Van Sebroeck nor Iguana vzw.
- * admit liability nor provide warranty for any of this software.
- * This material is provided "AS-IS" and at no charge.
- */
-
-/*
- * Functions/procedures to be called by the core
- */
-int watchdog_dev_register(struct watchdog_device *);
-int watchdog_dev_unregister(struct watchdog_device *);
#include <acpi/acpi_drivers.h>
#include <acpi/processor.h>
+#include <xen/xen.h>
#include <xen/interface/platform.h>
#include <asm/xen/hypercall.h>
return current_fsgid();
}
-/**
- * v9fs_dentry_from_dir_inode - helper function to get the dentry from
- * dir inode.
- *
- */
-
-static struct dentry *v9fs_dentry_from_dir_inode(struct inode *inode)
-{
- struct dentry *dentry;
-
- spin_lock(&inode->i_lock);
- /* Directory should have only one entry. */
- BUG_ON(S_ISDIR(inode->i_mode) && !list_is_singular(&inode->i_dentry));
- dentry = list_entry(inode->i_dentry.next, struct dentry, d_alias);
- spin_unlock(&inode->i_lock);
- return dentry;
-}
-
static int v9fs_test_inode_dotl(struct inode *inode, void *data)
{
struct v9fs_inode *v9inode = V9FS_I(inode);
if (dir->i_mode & S_ISGID)
omode |= S_ISGID;
- dir_dentry = v9fs_dentry_from_dir_inode(dir);
+ dir_dentry = dentry->d_parent;
dfid = v9fs_fid_lookup(dir_dentry);
if (IS_ERR(dfid)) {
err = PTR_ERR(dfid);
dir->i_ino, old_dentry->d_name.name, dentry->d_name.name);
v9ses = v9fs_inode2v9ses(dir);
- dir_dentry = v9fs_dentry_from_dir_inode(dir);
+ dir_dentry = dentry->d_parent;
dfid = v9fs_fid_lookup(dir_dentry);
if (IS_ERR(dfid))
return PTR_ERR(dfid);
return -EINVAL;
v9ses = v9fs_inode2v9ses(dir);
- dir_dentry = v9fs_dentry_from_dir_inode(dir);
+ dir_dentry = dentry->d_parent;
dfid = v9fs_fid_lookup(dir_dentry);
if (IS_ERR(dfid)) {
err = PTR_ERR(dfid);
#define AFFS_GET_HASHENTRY(data,hashkey) be32_to_cpu(((struct dir_front *)data)->hashtable[hashkey])
#define AFFS_BLOCK(sb, bh, blk) (AFFS_HEAD(bh)->table[AFFS_SB(sb)->s_hashsize-1-(blk)])
-#ifdef __LITTLE_ENDIAN
-#define BO_EXBITS 0x18UL
-#elif defined(__BIG_ENDIAN)
-#define BO_EXBITS 0x00UL
-#else
-#error Endianness must be known for affs to work.
-#endif
-
#define AFFS_HEAD(bh) ((struct affs_head *)(bh)->b_data)
#define AFFS_TAIL(sb, bh) ((struct affs_tail *)((bh)->b_data+(sb)->s_blocksize-sizeof(struct affs_tail)))
#define AFFS_ROOT_HEAD(bh) ((struct affs_root_head *)(bh)->b_data)
info->mmap_size = nr_pages * PAGE_SIZE;
dprintk("attempting mmap of %lu bytes\n", info->mmap_size);
down_write(&ctx->mm->mmap_sem);
- info->mmap_base = do_mmap(NULL, 0, info->mmap_size,
- PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_PRIVATE,
- 0);
+ info->mmap_base = do_mmap_pgoff(NULL, 0, info->mmap_size,
+ PROT_READ|PROT_WRITE,
+ MAP_ANONYMOUS|MAP_PRIVATE, 0);
if (IS_ERR((void *)info->mmap_base)) {
up_write(&ctx->mm->mmap_sem);
info->mmap_size = 0;
ret = compat_rw_copy_check_uvector(type,
(struct compat_iovec __user *)kiocb->ki_buf,
kiocb->ki_nbytes, 1, &kiocb->ki_inline_vec,
- &kiocb->ki_iovec, 1);
+ &kiocb->ki_iovec);
else
#endif
ret = rw_copy_check_uvector(type,
(struct iovec __user *)kiocb->ki_buf,
kiocb->ki_nbytes, 1, &kiocb->ki_inline_vec,
- &kiocb->ki_iovec, 1);
+ &kiocb->ki_iovec);
if (ret < 0)
goto out;
return -EPERM;
}
+ if ((ia_valid & ATTR_SIZE) && IS_I_VERSION(inode)) {
+ if (attr->ia_size != inode->i_size)
+ inode_inc_iversion(inode);
+ }
+
if ((ia_valid & ATTR_MODE)) {
umode_t amode = attr->ia_mode;
/* Flag setting protected by i_mutex */
.getxattr = bad_inode_getxattr,
.listxattr = bad_inode_listxattr,
.removexattr = bad_inode_removexattr,
- /* truncate_range returns void */
};
if (!size)
return addr;
- down_write(¤t->mm->mmap_sem);
/*
* total_size is the size of the ELF (interpreter) image.
* The _first_ mmap needs to know the full size, otherwise
*/
if (total_size) {
total_size = ELF_PAGEALIGN(total_size);
- map_addr = do_mmap(filep, addr, total_size, prot, type, off);
+ map_addr = vm_mmap(filep, addr, total_size, prot, type, off);
if (!BAD_ADDR(map_addr))
- do_munmap(current->mm, map_addr+size, total_size-size);
+ vm_munmap(map_addr+size, total_size-size);
} else
- map_addr = do_mmap(filep, addr, size, prot, type, off);
+ map_addr = vm_mmap(filep, addr, size, prot, type, off);
- up_write(¤t->mm->mmap_sem);
return(map_addr);
}
realdatastart = (unsigned long) -ENOMEM;
printk("Unable to allocate RAM for process data, errno %d\n",
(int)-realdatastart);
- do_munmap(current->mm, textpos, text_len);
+ vm_munmap(textpos, text_len);
ret = realdatastart;
goto err;
}
}
if (IS_ERR_VALUE(result)) {
printk("Unable to read data+bss, errno %d\n", (int)-result);
- do_munmap(current->mm, textpos, text_len);
- do_munmap(current->mm, realdatastart, len);
+ vm_munmap(textpos, text_len);
+ vm_munmap(realdatastart, len);
ret = result;
goto err;
}
}
if (IS_ERR_VALUE(result)) {
printk("Unable to read code+data+bss, errno %d\n",(int)-result);
- do_munmap(current->mm, textpos, text_len + data_len + extra +
+ vm_munmap(textpos, text_len + data_len + extra +
MAX_SHARED_LIBS * sizeof(unsigned long));
ret = result;
goto err;
#include <linux/swap.h>
#include <linux/bio.h>
#include <linux/blkdev.h>
+#include <linux/iocontext.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/export.h>
#include <linux/mempool.h>
#include <linux/workqueue.h>
+#include <linux/cgroup.h>
#include <scsi/sg.h> /* for struct sg_iovec */
#include <trace/events/block.h>
* last put frees it
*/
if (atomic_dec_and_test(&bio->bi_cnt)) {
+ bio_disassociate_task(bio);
bio->bi_next = NULL;
bio->bi_destructor(bio);
}
}
EXPORT_SYMBOL(bioset_create);
+#ifdef CONFIG_BLK_CGROUP
+/**
+ * bio_associate_current - associate a bio with %current
+ * @bio: target bio
+ *
+ * Associate @bio with %current if it hasn't been associated yet. Block
+ * layer will treat @bio as if it were issued by %current no matter which
+ * task actually issues it.
+ *
+ * This function takes an extra reference of @task's io_context and blkcg
+ * which will be put when @bio is released. The caller must own @bio,
+ * ensure %current->io_context exists, and is responsible for synchronizing
+ * calls to this function.
+ */
+int bio_associate_current(struct bio *bio)
+{
+ struct io_context *ioc;
+ struct cgroup_subsys_state *css;
+
+ if (bio->bi_ioc)
+ return -EBUSY;
+
+ ioc = current->io_context;
+ if (!ioc)
+ return -ENOENT;
+
+ /* acquire active ref on @ioc and associate */
+ get_io_context_active(ioc);
+ bio->bi_ioc = ioc;
+
+ /* associate blkcg if exists */
+ rcu_read_lock();
+ css = task_subsys_state(current, blkio_subsys_id);
+ if (css && css_tryget(css))
+ bio->bi_css = css;
+ rcu_read_unlock();
+
+ return 0;
+}
+
+/**
+ * bio_disassociate_task - undo bio_associate_current()
+ * @bio: target bio
+ */
+void bio_disassociate_task(struct bio *bio)
+{
+ if (bio->bi_ioc) {
+ put_io_context(bio->bi_ioc);
+ bio->bi_ioc = NULL;
+ }
+ if (bio->bi_css) {
+ css_put(bio->bi_css);
+ bio->bi_css = NULL;
+ }
+}
+
+#endif /* CONFIG_BLK_CGROUP */
+
static void __init biovec_init_slabs(void)
{
int i;
if (ret > 0) {
/* we need an acl */
ret = btrfs_set_acl(trans, inode, acl, ACL_TYPE_ACCESS);
+ } else {
+ cache_no_acl(inode);
}
+ } else {
+ cache_no_acl(inode);
}
failed:
posix_acl_release(acl);
#include "delayed-ref.h"
#include "locking.h"
+struct extent_inode_elem {
+ u64 inum;
+ u64 offset;
+ struct extent_inode_elem *next;
+};
+
+static int check_extent_in_eb(struct btrfs_key *key, struct extent_buffer *eb,
+ struct btrfs_file_extent_item *fi,
+ u64 extent_item_pos,
+ struct extent_inode_elem **eie)
+{
+ u64 data_offset;
+ u64 data_len;
+ struct extent_inode_elem *e;
+
+ data_offset = btrfs_file_extent_offset(eb, fi);
+ data_len = btrfs_file_extent_num_bytes(eb, fi);
+
+ if (extent_item_pos < data_offset ||
+ extent_item_pos >= data_offset + data_len)
+ return 1;
+
+ e = kmalloc(sizeof(*e), GFP_NOFS);
+ if (!e)
+ return -ENOMEM;
+
+ e->next = *eie;
+ e->inum = key->objectid;
+ e->offset = key->offset + (extent_item_pos - data_offset);
+ *eie = e;
+
+ return 0;
+}
+
+static int find_extent_in_eb(struct extent_buffer *eb, u64 wanted_disk_byte,
+ u64 extent_item_pos,
+ struct extent_inode_elem **eie)
+{
+ u64 disk_byte;
+ struct btrfs_key key;
+ struct btrfs_file_extent_item *fi;
+ int slot;
+ int nritems;
+ int extent_type;
+ int ret;
+
+ /*
+ * from the shared data ref, we only have the leaf but we need
+ * the key. thus, we must look into all items and see that we
+ * find one (some) with a reference to our extent item.
+ */
+ nritems = btrfs_header_nritems(eb);
+ for (slot = 0; slot < nritems; ++slot) {
+ btrfs_item_key_to_cpu(eb, &key, slot);
+ if (key.type != BTRFS_EXTENT_DATA_KEY)
+ continue;
+ fi = btrfs_item_ptr(eb, slot, struct btrfs_file_extent_item);
+ extent_type = btrfs_file_extent_type(eb, fi);
+ if (extent_type == BTRFS_FILE_EXTENT_INLINE)
+ continue;
+ /* don't skip BTRFS_FILE_EXTENT_PREALLOC, we can handle that */
+ disk_byte = btrfs_file_extent_disk_bytenr(eb, fi);
+ if (disk_byte != wanted_disk_byte)
+ continue;
+
+ ret = check_extent_in_eb(&key, eb, fi, extent_item_pos, eie);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
/*
* this structure records all encountered refs on the way up to the root
*/
struct __prelim_ref {
struct list_head list;
u64 root_id;
- struct btrfs_key key;
+ struct btrfs_key key_for_search;
int level;
int count;
+ struct extent_inode_elem *inode_list;
u64 parent;
u64 wanted_disk_byte;
};
+/*
+ * the rules for all callers of this function are:
+ * - obtaining the parent is the goal
+ * - if you add a key, you must know that it is a correct key
+ * - if you cannot add the parent or a correct key, then we will look into the
+ * block later to set a correct key
+ *
+ * delayed refs
+ * ============
+ * backref type | shared | indirect | shared | indirect
+ * information | tree | tree | data | data
+ * --------------------+--------+----------+--------+----------
+ * parent logical | y | - | - | -
+ * key to resolve | - | y | y | y
+ * tree block logical | - | - | - | -
+ * root for resolving | y | y | y | y
+ *
+ * - column 1: we've the parent -> done
+ * - column 2, 3, 4: we use the key to find the parent
+ *
+ * on disk refs (inline or keyed)
+ * ==============================
+ * backref type | shared | indirect | shared | indirect
+ * information | tree | tree | data | data
+ * --------------------+--------+----------+--------+----------
+ * parent logical | y | - | y | -
+ * key to resolve | - | - | - | y
+ * tree block logical | y | y | y | y
+ * root for resolving | - | y | y | y
+ *
+ * - column 1, 3: we've the parent -> done
+ * - column 2: we take the first key from the block to find the parent
+ * (see __add_missing_keys)
+ * - column 4: we use the key to find the parent
+ *
+ * additional information that's available but not required to find the parent
+ * block might help in merging entries to gain some speed.
+ */
+
static int __add_prelim_ref(struct list_head *head, u64 root_id,
- struct btrfs_key *key, int level, u64 parent,
- u64 wanted_disk_byte, int count)
+ struct btrfs_key *key, int level,
+ u64 parent, u64 wanted_disk_byte, int count)
{
struct __prelim_ref *ref;
ref->root_id = root_id;
if (key)
- ref->key = *key;
+ ref->key_for_search = *key;
else
- memset(&ref->key, 0, sizeof(ref->key));
+ memset(&ref->key_for_search, 0, sizeof(ref->key_for_search));
+ ref->inode_list = NULL;
ref->level = level;
ref->count = count;
ref->parent = parent;
}
static int add_all_parents(struct btrfs_root *root, struct btrfs_path *path,
- struct ulist *parents,
- struct extent_buffer *eb, int level,
- u64 wanted_objectid, u64 wanted_disk_byte)
+ struct ulist *parents, int level,
+ struct btrfs_key *key, u64 wanted_disk_byte,
+ const u64 *extent_item_pos)
{
int ret;
- int slot;
+ int slot = path->slots[level];
+ struct extent_buffer *eb = path->nodes[level];
struct btrfs_file_extent_item *fi;
- struct btrfs_key key;
+ struct extent_inode_elem *eie = NULL;
u64 disk_byte;
+ u64 wanted_objectid = key->objectid;
add_parent:
- ret = ulist_add(parents, eb->start, 0, GFP_NOFS);
+ if (level == 0 && extent_item_pos) {
+ fi = btrfs_item_ptr(eb, slot, struct btrfs_file_extent_item);
+ ret = check_extent_in_eb(key, eb, fi, *extent_item_pos, &eie);
+ if (ret < 0)
+ return ret;
+ }
+ ret = ulist_add(parents, eb->start, (unsigned long)eie, GFP_NOFS);
if (ret < 0)
return ret;
* repeat this until we don't find any additional EXTENT_DATA items.
*/
while (1) {
+ eie = NULL;
ret = btrfs_next_leaf(root, path);
if (ret < 0)
return ret;
eb = path->nodes[0];
for (slot = 0; slot < btrfs_header_nritems(eb); ++slot) {
- btrfs_item_key_to_cpu(eb, &key, slot);
- if (key.objectid != wanted_objectid ||
- key.type != BTRFS_EXTENT_DATA_KEY)
+ btrfs_item_key_to_cpu(eb, key, slot);
+ if (key->objectid != wanted_objectid ||
+ key->type != BTRFS_EXTENT_DATA_KEY)
return 0;
fi = btrfs_item_ptr(eb, slot,
struct btrfs_file_extent_item);
*/
static int __resolve_indirect_ref(struct btrfs_fs_info *fs_info,
int search_commit_root,
+ u64 time_seq,
struct __prelim_ref *ref,
- struct ulist *parents)
+ struct ulist *parents,
+ const u64 *extent_item_pos)
{
struct btrfs_path *path;
struct btrfs_root *root;
goto out;
path->lowest_level = level;
- ret = btrfs_search_slot(NULL, root, &ref->key, path, 0, 0);
+ ret = btrfs_search_old_slot(root, &ref->key_for_search, path, time_seq);
pr_debug("search slot in root %llu (level %d, ref count %d) returned "
"%d for key (%llu %u %llu)\n",
(unsigned long long)ref->root_id, level, ref->count, ret,
- (unsigned long long)ref->key.objectid, ref->key.type,
- (unsigned long long)ref->key.offset);
+ (unsigned long long)ref->key_for_search.objectid,
+ ref->key_for_search.type,
+ (unsigned long long)ref->key_for_search.offset);
if (ret < 0)
goto out;
btrfs_item_key_to_cpu(eb, &key, path->slots[0]);
}
- /* the last two parameters will only be used for level == 0 */
- ret = add_all_parents(root, path, parents, eb, level, key.objectid,
- ref->wanted_disk_byte);
+ ret = add_all_parents(root, path, parents, level, &key,
+ ref->wanted_disk_byte, extent_item_pos);
out:
btrfs_free_path(path);
return ret;
* resolve all indirect backrefs from the list
*/
static int __resolve_indirect_refs(struct btrfs_fs_info *fs_info,
- int search_commit_root,
- struct list_head *head)
+ int search_commit_root, u64 time_seq,
+ struct list_head *head,
+ const u64 *extent_item_pos)
{
int err;
int ret = 0;
struct __prelim_ref *new_ref;
struct ulist *parents;
struct ulist_node *node;
+ struct ulist_iterator uiter;
parents = ulist_alloc(GFP_NOFS);
if (!parents)
if (ref->count == 0)
continue;
err = __resolve_indirect_ref(fs_info, search_commit_root,
- ref, parents);
+ time_seq, ref, parents,
+ extent_item_pos);
if (err) {
if (ret == 0)
ret = err;
}
/* we put the first parent into the ref at hand */
- node = ulist_next(parents, NULL);
+ ULIST_ITER_INIT(&uiter);
+ node = ulist_next(parents, &uiter);
ref->parent = node ? node->val : 0;
+ ref->inode_list =
+ node ? (struct extent_inode_elem *)node->aux : 0;
/* additional parents require new refs being added here */
- while ((node = ulist_next(parents, node))) {
+ while ((node = ulist_next(parents, &uiter))) {
new_ref = kmalloc(sizeof(*new_ref), GFP_NOFS);
if (!new_ref) {
ret = -ENOMEM;
}
memcpy(new_ref, ref, sizeof(*ref));
new_ref->parent = node->val;
+ new_ref->inode_list =
+ (struct extent_inode_elem *)node->aux;
list_add(&new_ref->list, &ref->list);
}
ulist_reinit(parents);
return ret;
}
+static inline int ref_for_same_block(struct __prelim_ref *ref1,
+ struct __prelim_ref *ref2)
+{
+ if (ref1->level != ref2->level)
+ return 0;
+ if (ref1->root_id != ref2->root_id)
+ return 0;
+ if (ref1->key_for_search.type != ref2->key_for_search.type)
+ return 0;
+ if (ref1->key_for_search.objectid != ref2->key_for_search.objectid)
+ return 0;
+ if (ref1->key_for_search.offset != ref2->key_for_search.offset)
+ return 0;
+ if (ref1->parent != ref2->parent)
+ return 0;
+
+ return 1;
+}
+
+/*
+ * read tree blocks and add keys where required.
+ */
+static int __add_missing_keys(struct btrfs_fs_info *fs_info,
+ struct list_head *head)
+{
+ struct list_head *pos;
+ struct extent_buffer *eb;
+
+ list_for_each(pos, head) {
+ struct __prelim_ref *ref;
+ ref = list_entry(pos, struct __prelim_ref, list);
+
+ if (ref->parent)
+ continue;
+ if (ref->key_for_search.type)
+ continue;
+ BUG_ON(!ref->wanted_disk_byte);
+ eb = read_tree_block(fs_info->tree_root, ref->wanted_disk_byte,
+ fs_info->tree_root->leafsize, 0);
+ BUG_ON(!eb);
+ btrfs_tree_read_lock(eb);
+ if (btrfs_header_level(eb) == 0)
+ btrfs_item_key_to_cpu(eb, &ref->key_for_search, 0);
+ else
+ btrfs_node_key_to_cpu(eb, &ref->key_for_search, 0);
+ btrfs_tree_read_unlock(eb);
+ free_extent_buffer(eb);
+ }
+ return 0;
+}
+
/*
* merge two lists of backrefs and adjust counts accordingly
*
* mode = 1: merge identical keys, if key is set
+ * FIXME: if we add more keys in __add_prelim_ref, we can merge more here.
+ * additionally, we could even add a key range for the blocks we
+ * looked into to merge even more (-> replace unresolved refs by those
+ * having a parent).
* mode = 2: merge identical parents
*/
static int __merge_refs(struct list_head *head, int mode)
ref1 = list_entry(pos1, struct __prelim_ref, list);
- if (mode == 1 && ref1->key.type == 0)
- continue;
for (pos2 = pos1->next, n2 = pos2->next; pos2 != head;
pos2 = n2, n2 = pos2->next) {
struct __prelim_ref *ref2;
+ struct __prelim_ref *xchg;
ref2 = list_entry(pos2, struct __prelim_ref, list);
if (mode == 1) {
- if (memcmp(&ref1->key, &ref2->key,
- sizeof(ref1->key)) ||
- ref1->level != ref2->level ||
- ref1->root_id != ref2->root_id)
+ if (!ref_for_same_block(ref1, ref2))
continue;
+ if (!ref1->parent && ref2->parent) {
+ xchg = ref1;
+ ref1 = ref2;
+ ref2 = xchg;
+ }
ref1->count += ref2->count;
} else {
if (ref1->parent != ref2->parent)
* smaller or equal that seq to the list
*/
static int __add_delayed_refs(struct btrfs_delayed_ref_head *head, u64 seq,
- struct btrfs_key *info_key,
struct list_head *prefs)
{
struct btrfs_delayed_extent_op *extent_op = head->extent_op;
struct rb_node *n = &head->node.rb_node;
+ struct btrfs_key key;
+ struct btrfs_key op_key = {0};
int sgn;
int ret = 0;
if (extent_op && extent_op->update_key)
- btrfs_disk_key_to_cpu(info_key, &extent_op->key);
+ btrfs_disk_key_to_cpu(&op_key, &extent_op->key);
while ((n = rb_prev(n))) {
struct btrfs_delayed_ref_node *node;
struct btrfs_delayed_tree_ref *ref;
ref = btrfs_delayed_node_to_tree_ref(node);
- ret = __add_prelim_ref(prefs, ref->root, info_key,
+ ret = __add_prelim_ref(prefs, ref->root, &op_key,
ref->level + 1, 0, node->bytenr,
node->ref_mod * sgn);
break;
struct btrfs_delayed_tree_ref *ref;
ref = btrfs_delayed_node_to_tree_ref(node);
- ret = __add_prelim_ref(prefs, ref->root, info_key,
+ ret = __add_prelim_ref(prefs, ref->root, NULL,
ref->level + 1, ref->parent,
node->bytenr,
node->ref_mod * sgn);
}
case BTRFS_EXTENT_DATA_REF_KEY: {
struct btrfs_delayed_data_ref *ref;
- struct btrfs_key key;
-
ref = btrfs_delayed_node_to_data_ref(node);
key.objectid = ref->objectid;
}
case BTRFS_SHARED_DATA_REF_KEY: {
struct btrfs_delayed_data_ref *ref;
- struct btrfs_key key;
ref = btrfs_delayed_node_to_data_ref(node);
*/
static int __add_inline_refs(struct btrfs_fs_info *fs_info,
struct btrfs_path *path, u64 bytenr,
- struct btrfs_key *info_key, int *info_level,
- struct list_head *prefs)
+ int *info_level, struct list_head *prefs)
{
int ret = 0;
int slot;
* enumerate all inline refs
*/
leaf = path->nodes[0];
- slot = path->slots[0] - 1;
+ slot = path->slots[0];
item_size = btrfs_item_size_nr(leaf, slot);
BUG_ON(item_size < sizeof(*ei));
if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK) {
struct btrfs_tree_block_info *info;
- struct btrfs_disk_key disk_key;
info = (struct btrfs_tree_block_info *)ptr;
*info_level = btrfs_tree_block_level(leaf, info);
- btrfs_tree_block_key(leaf, info, &disk_key);
- btrfs_disk_key_to_cpu(info_key, &disk_key);
ptr += sizeof(struct btrfs_tree_block_info);
BUG_ON(ptr > end);
} else {
switch (type) {
case BTRFS_SHARED_BLOCK_REF_KEY:
- ret = __add_prelim_ref(prefs, 0, info_key,
+ ret = __add_prelim_ref(prefs, 0, NULL,
*info_level + 1, offset,
bytenr, 1);
break;
break;
}
case BTRFS_TREE_BLOCK_REF_KEY:
- ret = __add_prelim_ref(prefs, offset, info_key,
- *info_level + 1, 0, bytenr, 1);
+ ret = __add_prelim_ref(prefs, offset, NULL,
+ *info_level + 1, 0,
+ bytenr, 1);
break;
case BTRFS_EXTENT_DATA_REF_KEY: {
struct btrfs_extent_data_ref *dref;
key.type = BTRFS_EXTENT_DATA_KEY;
key.offset = btrfs_extent_data_ref_offset(leaf, dref);
root = btrfs_extent_data_ref_root(leaf, dref);
- ret = __add_prelim_ref(prefs, root, &key, 0, 0, bytenr,
- count);
+ ret = __add_prelim_ref(prefs, root, &key, 0, 0,
+ bytenr, count);
break;
}
default:
*/
static int __add_keyed_refs(struct btrfs_fs_info *fs_info,
struct btrfs_path *path, u64 bytenr,
- struct btrfs_key *info_key, int info_level,
- struct list_head *prefs)
+ int info_level, struct list_head *prefs)
{
struct btrfs_root *extent_root = fs_info->extent_root;
int ret;
switch (key.type) {
case BTRFS_SHARED_BLOCK_REF_KEY:
- ret = __add_prelim_ref(prefs, 0, info_key,
+ ret = __add_prelim_ref(prefs, 0, NULL,
info_level + 1, key.offset,
bytenr, 1);
break;
break;
}
case BTRFS_TREE_BLOCK_REF_KEY:
- ret = __add_prelim_ref(prefs, key.offset, info_key,
- info_level + 1, 0, bytenr, 1);
+ ret = __add_prelim_ref(prefs, key.offset, NULL,
+ info_level + 1, 0,
+ bytenr, 1);
break;
case BTRFS_EXTENT_DATA_REF_KEY: {
struct btrfs_extent_data_ref *dref;
key.offset = btrfs_extent_data_ref_offset(leaf, dref);
root = btrfs_extent_data_ref_root(leaf, dref);
ret = __add_prelim_ref(prefs, root, &key, 0, 0,
- bytenr, count);
+ bytenr, count);
break;
}
default:
*/
static int find_parent_nodes(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info, u64 bytenr,
- u64 seq, struct ulist *refs, struct ulist *roots)
+ u64 delayed_ref_seq, u64 time_seq,
+ struct ulist *refs, struct ulist *roots,
+ const u64 *extent_item_pos)
{
struct btrfs_key key;
struct btrfs_path *path;
- struct btrfs_key info_key = { 0 };
struct btrfs_delayed_ref_root *delayed_refs = NULL;
struct btrfs_delayed_ref_head *head;
int info_level = 0;
btrfs_put_delayed_ref(&head->node);
goto again;
}
- ret = __add_delayed_refs(head, seq, &info_key,
+ ret = __add_delayed_refs(head, delayed_ref_seq,
&prefs_delayed);
if (ret) {
spin_unlock(&delayed_refs->lock);
struct extent_buffer *leaf;
int slot;
+ path->slots[0]--;
leaf = path->nodes[0];
- slot = path->slots[0] - 1;
+ slot = path->slots[0];
btrfs_item_key_to_cpu(leaf, &key, slot);
if (key.objectid == bytenr &&
key.type == BTRFS_EXTENT_ITEM_KEY) {
ret = __add_inline_refs(fs_info, path, bytenr,
- &info_key, &info_level, &prefs);
+ &info_level, &prefs);
if (ret)
goto out;
- ret = __add_keyed_refs(fs_info, path, bytenr, &info_key,
+ ret = __add_keyed_refs(fs_info, path, bytenr,
info_level, &prefs);
if (ret)
goto out;
}
btrfs_release_path(path);
- /*
- * when adding the delayed refs above, the info_key might not have
- * been known yet. Go over the list and replace the missing keys
- */
- list_for_each_entry(ref, &prefs_delayed, list) {
- if ((ref->key.offset | ref->key.type | ref->key.objectid) == 0)
- memcpy(&ref->key, &info_key, sizeof(ref->key));
- }
list_splice_init(&prefs_delayed, &prefs);
+ ret = __add_missing_keys(fs_info, &prefs);
+ if (ret)
+ goto out;
+
ret = __merge_refs(&prefs, 1);
if (ret)
goto out;
- ret = __resolve_indirect_refs(fs_info, search_commit_root, &prefs);
+ ret = __resolve_indirect_refs(fs_info, search_commit_root, time_seq,
+ &prefs, extent_item_pos);
if (ret)
goto out;
BUG_ON(ret < 0);
}
if (ref->count && ref->parent) {
- ret = ulist_add(refs, ref->parent, 0, GFP_NOFS);
+ struct extent_inode_elem *eie = NULL;
+ if (extent_item_pos && !ref->inode_list) {
+ u32 bsz;
+ struct extent_buffer *eb;
+ bsz = btrfs_level_size(fs_info->extent_root,
+ info_level);
+ eb = read_tree_block(fs_info->extent_root,
+ ref->parent, bsz, 0);
+ BUG_ON(!eb);
+ ret = find_extent_in_eb(eb, bytenr,
+ *extent_item_pos, &eie);
+ ref->inode_list = eie;
+ free_extent_buffer(eb);
+ }
+ ret = ulist_add_merge(refs, ref->parent,
+ (unsigned long)ref->inode_list,
+ (unsigned long *)&eie, GFP_NOFS);
+ if (!ret && extent_item_pos) {
+ /*
+ * we've recorded that parent, so we must extend
+ * its inode list here
+ */
+ BUG_ON(!eie);
+ while (eie->next)
+ eie = eie->next;
+ eie->next = ref->inode_list;
+ }
BUG_ON(ret < 0);
}
kfree(ref);
return ret;
}
+static void free_leaf_list(struct ulist *blocks)
+{
+ struct ulist_node *node = NULL;
+ struct extent_inode_elem *eie;
+ struct extent_inode_elem *eie_next;
+ struct ulist_iterator uiter;
+
+ ULIST_ITER_INIT(&uiter);
+ while ((node = ulist_next(blocks, &uiter))) {
+ if (!node->aux)
+ continue;
+ eie = (struct extent_inode_elem *)node->aux;
+ for (; eie; eie = eie_next) {
+ eie_next = eie->next;
+ kfree(eie);
+ }
+ node->aux = 0;
+ }
+
+ ulist_free(blocks);
+}
+
/*
* Finds all leafs with a reference to the specified combination of bytenr and
* offset. key_list_head will point to a list of corresponding keys (caller must
*/
static int btrfs_find_all_leafs(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info, u64 bytenr,
- u64 num_bytes, u64 seq, struct ulist **leafs)
+ u64 delayed_ref_seq, u64 time_seq,
+ struct ulist **leafs,
+ const u64 *extent_item_pos)
{
struct ulist *tmp;
int ret;
return -ENOMEM;
}
- ret = find_parent_nodes(trans, fs_info, bytenr, seq, *leafs, tmp);
+ ret = find_parent_nodes(trans, fs_info, bytenr, delayed_ref_seq,
+ time_seq, *leafs, tmp, extent_item_pos);
ulist_free(tmp);
if (ret < 0 && ret != -ENOENT) {
- ulist_free(*leafs);
+ free_leaf_list(*leafs);
return ret;
}
*/
int btrfs_find_all_roots(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info, u64 bytenr,
- u64 num_bytes, u64 seq, struct ulist **roots)
+ u64 delayed_ref_seq, u64 time_seq,
+ struct ulist **roots)
{
struct ulist *tmp;
struct ulist_node *node = NULL;
+ struct ulist_iterator uiter;
int ret;
tmp = ulist_alloc(GFP_NOFS);
return -ENOMEM;
}
+ ULIST_ITER_INIT(&uiter);
while (1) {
- ret = find_parent_nodes(trans, fs_info, bytenr, seq,
- tmp, *roots);
+ ret = find_parent_nodes(trans, fs_info, bytenr, delayed_ref_seq,
+ time_seq, tmp, *roots, NULL);
if (ret < 0 && ret != -ENOENT) {
ulist_free(tmp);
ulist_free(*roots);
return ret;
}
- node = ulist_next(tmp, node);
+ node = ulist_next(tmp, &uiter);
if (!node)
break;
bytenr = node->val;
return 0;
}
-static int iterate_leaf_refs(struct btrfs_fs_info *fs_info, u64 logical,
- u64 orig_extent_item_objectid,
- u64 extent_item_pos, u64 root,
+static int iterate_leaf_refs(struct extent_inode_elem *inode_list,
+ u64 root, u64 extent_item_objectid,
iterate_extent_inodes_t *iterate, void *ctx)
{
- u64 disk_byte;
- struct btrfs_key key;
- struct btrfs_file_extent_item *fi;
- struct extent_buffer *eb;
- int slot;
- int nritems;
+ struct extent_inode_elem *eie;
int ret = 0;
- int extent_type;
- u64 data_offset;
- u64 data_len;
-
- eb = read_tree_block(fs_info->tree_root, logical,
- fs_info->tree_root->leafsize, 0);
- if (!eb)
- return -EIO;
-
- /*
- * from the shared data ref, we only have the leaf but we need
- * the key. thus, we must look into all items and see that we
- * find one (some) with a reference to our extent item.
- */
- nritems = btrfs_header_nritems(eb);
- for (slot = 0; slot < nritems; ++slot) {
- btrfs_item_key_to_cpu(eb, &key, slot);
- if (key.type != BTRFS_EXTENT_DATA_KEY)
- continue;
- fi = btrfs_item_ptr(eb, slot, struct btrfs_file_extent_item);
- extent_type = btrfs_file_extent_type(eb, fi);
- if (extent_type == BTRFS_FILE_EXTENT_INLINE)
- continue;
- /* don't skip BTRFS_FILE_EXTENT_PREALLOC, we can handle that */
- disk_byte = btrfs_file_extent_disk_bytenr(eb, fi);
- if (disk_byte != orig_extent_item_objectid)
- continue;
-
- data_offset = btrfs_file_extent_offset(eb, fi);
- data_len = btrfs_file_extent_num_bytes(eb, fi);
-
- if (extent_item_pos < data_offset ||
- extent_item_pos >= data_offset + data_len)
- continue;
+ for (eie = inode_list; eie; eie = eie->next) {
pr_debug("ref for %llu resolved, key (%llu EXTEND_DATA %llu), "
- "root %llu\n", orig_extent_item_objectid,
- key.objectid, key.offset, root);
- ret = iterate(key.objectid,
- key.offset + (extent_item_pos - data_offset),
- root, ctx);
+ "root %llu\n", extent_item_objectid,
+ eie->inum, eie->offset, root);
+ ret = iterate(eie->inum, eie->offset, root, ctx);
if (ret) {
- pr_debug("stopping iteration because ret=%d\n", ret);
+ pr_debug("stopping iteration for %llu due to ret=%d\n",
+ extent_item_objectid, ret);
break;
}
}
- free_extent_buffer(eb);
-
return ret;
}
struct ulist *roots = NULL;
struct ulist_node *ref_node = NULL;
struct ulist_node *root_node = NULL;
- struct seq_list seq_elem;
+ struct seq_list seq_elem = {};
+ struct seq_list tree_mod_seq_elem = {};
+ struct ulist_iterator ref_uiter;
+ struct ulist_iterator root_uiter;
struct btrfs_delayed_ref_root *delayed_refs = NULL;
pr_debug("resolving all inodes for extent %llu\n",
spin_lock(&delayed_refs->lock);
btrfs_get_delayed_seq(delayed_refs, &seq_elem);
spin_unlock(&delayed_refs->lock);
+ btrfs_get_tree_mod_seq(fs_info, &tree_mod_seq_elem);
}
ret = btrfs_find_all_leafs(trans, fs_info, extent_item_objectid,
- extent_item_pos, seq_elem.seq,
- &refs);
-
+ seq_elem.seq, tree_mod_seq_elem.seq, &refs,
+ &extent_item_pos);
if (ret)
goto out;
- while (!ret && (ref_node = ulist_next(refs, ref_node))) {
- ret = btrfs_find_all_roots(trans, fs_info, ref_node->val, -1,
- seq_elem.seq, &roots);
+ ULIST_ITER_INIT(&ref_uiter);
+ while (!ret && (ref_node = ulist_next(refs, &ref_uiter))) {
+ ret = btrfs_find_all_roots(trans, fs_info, ref_node->val,
+ seq_elem.seq,
+ tree_mod_seq_elem.seq, &roots);
if (ret)
break;
- while (!ret && (root_node = ulist_next(roots, root_node))) {
- pr_debug("root %llu references leaf %llu\n",
- root_node->val, ref_node->val);
- ret = iterate_leaf_refs(fs_info, ref_node->val,
- extent_item_objectid,
- extent_item_pos, root_node->val,
- iterate, ctx);
+ ULIST_ITER_INIT(&root_uiter);
+ while (!ret && (root_node = ulist_next(roots, &root_uiter))) {
+ pr_debug("root %llu references leaf %llu, data list "
+ "%#lx\n", root_node->val, ref_node->val,
+ ref_node->aux);
+ ret = iterate_leaf_refs(
+ (struct extent_inode_elem *)ref_node->aux,
+ root_node->val, extent_item_objectid,
+ iterate, ctx);
}
+ ulist_free(roots);
+ roots = NULL;
}
- ulist_free(refs);
+ free_leaf_list(refs);
ulist_free(roots);
out:
if (!search_commit_root) {
+ btrfs_put_tree_mod_seq(fs_info, &tree_mod_seq_elem);
btrfs_put_delayed_seq(delayed_refs, &seq_elem);
btrfs_end_transaction(trans, fs_info->extent_root);
}
int btrfs_find_all_roots(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info, u64 bytenr,
- u64 num_bytes, u64 seq, struct ulist **roots);
+ u64 delayed_ref_seq, u64 time_seq,
+ struct ulist **roots);
struct btrfs_data_container *init_data_container(u32 total_bytes);
struct inode_fs_paths *init_ipath(s32 total_bytes, struct btrfs_root *fs_root,
#include "ordered-data.h"
#include "delayed-inode.h"
+/*
+ * ordered_data_close is set by truncate when a file that used
+ * to have good data has been truncated to zero. When it is set
+ * the btrfs file release call will add this inode to the
+ * ordered operations list so that we make sure to flush out any
+ * new data the application may have written before commit.
+ */
+#define BTRFS_INODE_ORDERED_DATA_CLOSE 0
+#define BTRFS_INODE_ORPHAN_META_RESERVED 1
+#define BTRFS_INODE_DUMMY 2
+#define BTRFS_INODE_IN_DEFRAG 3
+#define BTRFS_INODE_DELALLOC_META_RESERVED 4
+#define BTRFS_INODE_HAS_ORPHAN_ITEM 5
+
/* in memory btrfs inode */
struct btrfs_inode {
/* which subvolume this inode belongs to */
/* used to order data wrt metadata */
struct btrfs_ordered_inode_tree ordered_tree;
- /* for keeping track of orphaned inodes */
- struct list_head i_orphan;
-
/* list of all the delalloc inodes in the FS. There are times we need
* to write all the delalloc pages to disk, and this list is used
* to walk them all.
/* the space_info for where this inode's data allocations are done */
struct btrfs_space_info *space_info;
+ unsigned long runtime_flags;
+
/* full 64 bit generation number, struct vfs_inode doesn't have a big
* enough field for this.
*/
u64 generation;
- /* sequence number for NFS changes */
- u64 sequence;
-
/*
* transid of the trans_handle that last modified this inode
*/
unsigned outstanding_extents;
unsigned reserved_extents;
- /*
- * ordered_data_close is set by truncate when a file that used
- * to have good data has been truncated to zero. When it is set
- * the btrfs file release call will add this inode to the
- * ordered operations list so that we make sure to flush out any
- * new data the application may have written before commit.
- */
- unsigned ordered_data_close:1;
- unsigned orphan_meta_reserved:1;
- unsigned dummy_inode:1;
- unsigned in_defrag:1;
- unsigned delalloc_meta_reserved:1;
-
/*
* always compress this one file
*/
- unsigned force_compress:4;
+ unsigned force_compress;
struct btrfs_delayed_node *delayed_node;
return false;
}
+static inline int btrfs_inode_in_log(struct inode *inode, u64 generation)
+{
+ struct btrfs_root *root = BTRFS_I(inode)->root;
+ int ret = 0;
+
+ mutex_lock(&root->log_mutex);
+ if (BTRFS_I(inode)->logged_trans == generation &&
+ BTRFS_I(inode)->last_sub_trans <= root->last_log_commit)
+ ret = 1;
+ mutex_unlock(&root->log_mutex);
+ return ret;
+}
+
#endif
#define BTRFSIC_BLOCK_STACK_FRAME_MAGIC_NUMBER 20111300
#define BTRFSIC_TREE_DUMP_MAX_INDENT_LEVEL (200 - 6) /* in characters,
* excluding " [...]" */
-#define BTRFSIC_BLOCK_SIZE PAGE_SIZE
-
#define BTRFSIC_GENERATION_UNKNOWN ((u64)-1)
/*
u64 dev_bytenr; /* physical bytenr on device */
u32 len;
struct btrfsic_dev_state *dev;
- char *data;
- struct buffer_head *bh; /* do not use if set to NULL */
+ char **datav;
+ struct page **pagev;
+ void *mem_to_free;
};
/* This structure is used to implement recursion without occupying
struct btrfs_root *root;
u64 max_superblock_generation;
struct btrfsic_block *latest_superblock;
+ u32 metablock_size;
+ u32 datablock_size;
};
static void btrfsic_block_init(struct btrfsic_block *b);
static int btrfsic_process_metablock(struct btrfsic_state *state,
struct btrfsic_block *block,
struct btrfsic_block_data_ctx *block_ctx,
- struct btrfs_header *hdr,
int limit_nesting, int force_iodone_flag);
+static void btrfsic_read_from_block_data(
+ struct btrfsic_block_data_ctx *block_ctx,
+ void *dst, u32 offset, size_t len);
static int btrfsic_create_link_to_next_block(
struct btrfsic_state *state,
struct btrfsic_block *block,
static int btrfsic_read_block(struct btrfsic_state *state,
struct btrfsic_block_data_ctx *block_ctx);
static void btrfsic_dump_database(struct btrfsic_state *state);
+static void btrfsic_complete_bio_end_io(struct bio *bio, int err);
static int btrfsic_test_for_metadata(struct btrfsic_state *state,
- const u8 *data, unsigned int size);
+ char **datav, unsigned int num_pages);
static void btrfsic_process_written_block(struct btrfsic_dev_state *dev_state,
- u64 dev_bytenr, u8 *mapped_data,
- unsigned int len, struct bio *bio,
- int *bio_is_patched,
+ u64 dev_bytenr, char **mapped_datav,
+ unsigned int num_pages,
+ struct bio *bio, int *bio_is_patched,
struct buffer_head *bh,
int submit_bio_bh_rw);
static int btrfsic_process_written_superblock(
static void btrfsic_cmp_log_and_dev_bytenr(struct btrfsic_state *state,
u64 bytenr,
struct btrfsic_dev_state *dev_state,
- u64 dev_bytenr, char *data);
+ u64 dev_bytenr);
static struct mutex btrfsic_mutex;
static int btrfsic_is_initialized;
int pass;
BUG_ON(NULL == state);
- selected_super = kmalloc(sizeof(*selected_super), GFP_NOFS);
+ selected_super = kzalloc(sizeof(*selected_super), GFP_NOFS);
if (NULL == selected_super) {
printk(KERN_INFO "btrfsic: error, kmalloc failed!\n");
return -1;
num_copies =
btrfs_num_copies(&state->root->fs_info->mapping_tree,
- next_bytenr, PAGE_SIZE);
+ next_bytenr, state->metablock_size);
if (state->print_mask & BTRFSIC_PRINT_MASK_NUM_COPIES)
printk(KERN_INFO "num_copies(log_bytenr=%llu) = %d\n",
(unsigned long long)next_bytenr, num_copies);
struct btrfsic_block *next_block;
struct btrfsic_block_data_ctx tmp_next_block_ctx;
struct btrfsic_block_link *l;
- struct btrfs_header *hdr;
- ret = btrfsic_map_block(state, next_bytenr, PAGE_SIZE,
+ ret = btrfsic_map_block(state, next_bytenr,
+ state->metablock_size,
&tmp_next_block_ctx,
mirror_num);
if (ret) {
BUG_ON(NULL == l);
ret = btrfsic_read_block(state, &tmp_next_block_ctx);
- if (ret < (int)BTRFSIC_BLOCK_SIZE) {
+ if (ret < (int)PAGE_CACHE_SIZE) {
printk(KERN_INFO
"btrfsic: read @logical %llu failed!\n",
(unsigned long long)
return -1;
}
- hdr = (struct btrfs_header *)tmp_next_block_ctx.data;
ret = btrfsic_process_metablock(state,
next_block,
&tmp_next_block_ctx,
- hdr,
BTRFS_MAX_LEVEL + 3, 1);
btrfsic_release_block_ctx(&tmp_next_block_ctx);
}
/* super block bytenr is always the unmapped device bytenr */
dev_bytenr = btrfs_sb_offset(superblock_mirror_num);
- bh = __bread(superblock_bdev, dev_bytenr / 4096, 4096);
+ if (dev_bytenr + BTRFS_SUPER_INFO_SIZE > device->total_bytes)
+ return -1;
+ bh = __bread(superblock_bdev, dev_bytenr / 4096,
+ BTRFS_SUPER_INFO_SIZE);
if (NULL == bh)
return -1;
super_tmp = (struct btrfs_super_block *)
if (btrfs_super_bytenr(super_tmp) != dev_bytenr ||
strncmp((char *)(&(super_tmp->magic)), BTRFS_MAGIC,
sizeof(super_tmp->magic)) ||
- memcmp(device->uuid, super_tmp->dev_item.uuid, BTRFS_UUID_SIZE)) {
+ memcmp(device->uuid, super_tmp->dev_item.uuid, BTRFS_UUID_SIZE) ||
+ btrfs_super_nodesize(super_tmp) != state->metablock_size ||
+ btrfs_super_leafsize(super_tmp) != state->metablock_size ||
+ btrfs_super_sectorsize(super_tmp) != state->datablock_size) {
brelse(bh);
return 0;
}
num_copies =
btrfs_num_copies(&state->root->fs_info->mapping_tree,
- next_bytenr, PAGE_SIZE);
+ next_bytenr, state->metablock_size);
if (state->print_mask & BTRFSIC_PRINT_MASK_NUM_COPIES)
printk(KERN_INFO "num_copies(log_bytenr=%llu) = %d\n",
(unsigned long long)next_bytenr, num_copies);
struct btrfsic_block_data_ctx tmp_next_block_ctx;
struct btrfsic_block_link *l;
- if (btrfsic_map_block(state, next_bytenr, PAGE_SIZE,
+ if (btrfsic_map_block(state, next_bytenr,
+ state->metablock_size,
&tmp_next_block_ctx,
mirror_num)) {
printk(KERN_INFO "btrfsic: btrfsic_map_block("
struct btrfsic_state *state,
struct btrfsic_block *const first_block,
struct btrfsic_block_data_ctx *const first_block_ctx,
- struct btrfs_header *const first_hdr,
int first_limit_nesting, int force_iodone_flag)
{
struct btrfsic_stack_frame initial_stack_frame = { 0 };
struct btrfsic_stack_frame *sf;
struct btrfsic_stack_frame *next_stack;
+ struct btrfs_header *const first_hdr =
+ (struct btrfs_header *)first_block_ctx->datav[0];
+ BUG_ON(!first_hdr);
sf = &initial_stack_frame;
sf->error = 0;
sf->i = -1;
}
if (sf->i < sf->nr) {
- struct btrfs_item *disk_item = leafhdr->items + sf->i;
- struct btrfs_disk_key *disk_key = &disk_item->key;
+ struct btrfs_item disk_item;
+ u32 disk_item_offset =
+ (uintptr_t)(leafhdr->items + sf->i) -
+ (uintptr_t)leafhdr;
+ struct btrfs_disk_key *disk_key;
u8 type;
- const u32 item_offset = le32_to_cpu(disk_item->offset);
+ u32 item_offset;
+ if (disk_item_offset + sizeof(struct btrfs_item) >
+ sf->block_ctx->len) {
+leaf_item_out_of_bounce_error:
+ printk(KERN_INFO
+ "btrfsic: leaf item out of bounce at logical %llu, dev %s\n",
+ sf->block_ctx->start,
+ sf->block_ctx->dev->name);
+ goto one_stack_frame_backwards;
+ }
+ btrfsic_read_from_block_data(sf->block_ctx,
+ &disk_item,
+ disk_item_offset,
+ sizeof(struct btrfs_item));
+ item_offset = le32_to_cpu(disk_item.offset);
+ disk_key = &disk_item.key;
type = disk_key->type;
if (BTRFS_ROOT_ITEM_KEY == type) {
- const struct btrfs_root_item *const root_item =
- (struct btrfs_root_item *)
- (sf->block_ctx->data +
- offsetof(struct btrfs_leaf, items) +
- item_offset);
- const u64 next_bytenr =
- le64_to_cpu(root_item->bytenr);
+ struct btrfs_root_item root_item;
+ u32 root_item_offset;
+ u64 next_bytenr;
+
+ root_item_offset = item_offset +
+ offsetof(struct btrfs_leaf, items);
+ if (root_item_offset +
+ sizeof(struct btrfs_root_item) >
+ sf->block_ctx->len)
+ goto leaf_item_out_of_bounce_error;
+ btrfsic_read_from_block_data(
+ sf->block_ctx, &root_item,
+ root_item_offset,
+ sizeof(struct btrfs_root_item));
+ next_bytenr = le64_to_cpu(root_item.bytenr);
sf->error =
btrfsic_create_link_to_next_block(
&sf->num_copies,
&sf->mirror_num,
disk_key,
- le64_to_cpu(root_item->
+ le64_to_cpu(root_item.
generation));
if (sf->error)
goto one_stack_frame_backwards;
if (NULL != sf->next_block) {
struct btrfs_header *const next_hdr =
(struct btrfs_header *)
- sf->next_block_ctx.data;
+ sf->next_block_ctx.datav[0];
next_stack =
btrfsic_stack_frame_alloc();
}
if (sf->i < sf->nr) {
- struct btrfs_key_ptr *disk_key_ptr =
- nodehdr->ptrs + sf->i;
- const u64 next_bytenr =
- le64_to_cpu(disk_key_ptr->blockptr);
+ struct btrfs_key_ptr key_ptr;
+ u32 key_ptr_offset;
+ u64 next_bytenr;
+
+ key_ptr_offset = (uintptr_t)(nodehdr->ptrs + sf->i) -
+ (uintptr_t)nodehdr;
+ if (key_ptr_offset + sizeof(struct btrfs_key_ptr) >
+ sf->block_ctx->len) {
+ printk(KERN_INFO
+ "btrfsic: node item out of bounce at logical %llu, dev %s\n",
+ sf->block_ctx->start,
+ sf->block_ctx->dev->name);
+ goto one_stack_frame_backwards;
+ }
+ btrfsic_read_from_block_data(
+ sf->block_ctx, &key_ptr, key_ptr_offset,
+ sizeof(struct btrfs_key_ptr));
+ next_bytenr = le64_to_cpu(key_ptr.blockptr);
sf->error = btrfsic_create_link_to_next_block(
state,
force_iodone_flag,
&sf->num_copies,
&sf->mirror_num,
- &disk_key_ptr->key,
- le64_to_cpu(disk_key_ptr->generation));
+ &key_ptr.key,
+ le64_to_cpu(key_ptr.generation));
if (sf->error)
goto one_stack_frame_backwards;
if (NULL != sf->next_block) {
struct btrfs_header *const next_hdr =
(struct btrfs_header *)
- sf->next_block_ctx.data;
+ sf->next_block_ctx.datav[0];
next_stack = btrfsic_stack_frame_alloc();
if (NULL == next_stack)
return sf->error;
}
+static void btrfsic_read_from_block_data(
+ struct btrfsic_block_data_ctx *block_ctx,
+ void *dstv, u32 offset, size_t len)
+{
+ size_t cur;
+ size_t offset_in_page;
+ char *kaddr;
+ char *dst = (char *)dstv;
+ size_t start_offset = block_ctx->start & ((u64)PAGE_CACHE_SIZE - 1);
+ unsigned long i = (start_offset + offset) >> PAGE_CACHE_SHIFT;
+
+ WARN_ON(offset + len > block_ctx->len);
+ offset_in_page = (start_offset + offset) &
+ ((unsigned long)PAGE_CACHE_SIZE - 1);
+
+ while (len > 0) {
+ cur = min(len, ((size_t)PAGE_CACHE_SIZE - offset_in_page));
+ BUG_ON(i >= (block_ctx->len + PAGE_CACHE_SIZE - 1) >>
+ PAGE_CACHE_SHIFT);
+ kaddr = block_ctx->datav[i];
+ memcpy(dst, kaddr + offset_in_page, cur);
+
+ dst += cur;
+ len -= cur;
+ offset_in_page = 0;
+ i++;
+ }
+}
+
static int btrfsic_create_link_to_next_block(
struct btrfsic_state *state,
struct btrfsic_block *block,
if (0 == *num_copiesp) {
*num_copiesp =
btrfs_num_copies(&state->root->fs_info->mapping_tree,
- next_bytenr, PAGE_SIZE);
+ next_bytenr, state->metablock_size);
if (state->print_mask & BTRFSIC_PRINT_MASK_NUM_COPIES)
printk(KERN_INFO "num_copies(log_bytenr=%llu) = %d\n",
(unsigned long long)next_bytenr, *num_copiesp);
"btrfsic_create_link_to_next_block(mirror_num=%d)\n",
*mirror_nump);
ret = btrfsic_map_block(state, next_bytenr,
- BTRFSIC_BLOCK_SIZE,
+ state->metablock_size,
next_block_ctx, *mirror_nump);
if (ret) {
printk(KERN_INFO
if (limit_nesting > 0 && did_alloc_block_link) {
ret = btrfsic_read_block(state, next_block_ctx);
- if (ret < (int)BTRFSIC_BLOCK_SIZE) {
+ if (ret < (int)next_block_ctx->len) {
printk(KERN_INFO
"btrfsic: read block @logical %llu failed!\n",
(unsigned long long)next_bytenr);
u32 item_offset, int force_iodone_flag)
{
int ret;
- struct btrfs_file_extent_item *file_extent_item =
- (struct btrfs_file_extent_item *)(block_ctx->data +
- offsetof(struct btrfs_leaf,
- items) + item_offset);
- u64 next_bytenr =
- le64_to_cpu(file_extent_item->disk_bytenr) +
- le64_to_cpu(file_extent_item->offset);
- u64 num_bytes = le64_to_cpu(file_extent_item->num_bytes);
- u64 generation = le64_to_cpu(file_extent_item->generation);
+ struct btrfs_file_extent_item file_extent_item;
+ u64 file_extent_item_offset;
+ u64 next_bytenr;
+ u64 num_bytes;
+ u64 generation;
struct btrfsic_block_link *l;
+ file_extent_item_offset = offsetof(struct btrfs_leaf, items) +
+ item_offset;
+ if (file_extent_item_offset +
+ offsetof(struct btrfs_file_extent_item, disk_num_bytes) >
+ block_ctx->len) {
+ printk(KERN_INFO
+ "btrfsic: file item out of bounce at logical %llu, dev %s\n",
+ block_ctx->start, block_ctx->dev->name);
+ return -1;
+ }
+
+ btrfsic_read_from_block_data(block_ctx, &file_extent_item,
+ file_extent_item_offset,
+ offsetof(struct btrfs_file_extent_item, disk_num_bytes));
+ if (BTRFS_FILE_EXTENT_REG != file_extent_item.type ||
+ ((u64)0) == le64_to_cpu(file_extent_item.disk_bytenr)) {
+ if (state->print_mask & BTRFSIC_PRINT_MASK_VERY_VERBOSE)
+ printk(KERN_INFO "extent_data: type %u, disk_bytenr = %llu\n",
+ file_extent_item.type,
+ (unsigned long long)
+ le64_to_cpu(file_extent_item.disk_bytenr));
+ return 0;
+ }
+
+ if (file_extent_item_offset + sizeof(struct btrfs_file_extent_item) >
+ block_ctx->len) {
+ printk(KERN_INFO
+ "btrfsic: file item out of bounce at logical %llu, dev %s\n",
+ block_ctx->start, block_ctx->dev->name);
+ return -1;
+ }
+ btrfsic_read_from_block_data(block_ctx, &file_extent_item,
+ file_extent_item_offset,
+ sizeof(struct btrfs_file_extent_item));
+ next_bytenr = le64_to_cpu(file_extent_item.disk_bytenr) +
+ le64_to_cpu(file_extent_item.offset);
+ generation = le64_to_cpu(file_extent_item.generation);
+ num_bytes = le64_to_cpu(file_extent_item.num_bytes);
+ generation = le64_to_cpu(file_extent_item.generation);
+
if (state->print_mask & BTRFSIC_PRINT_MASK_VERY_VERBOSE)
printk(KERN_INFO "extent_data: type %u, disk_bytenr = %llu,"
" offset = %llu, num_bytes = %llu\n",
- file_extent_item->type,
+ file_extent_item.type,
(unsigned long long)
- le64_to_cpu(file_extent_item->disk_bytenr),
- (unsigned long long)
- le64_to_cpu(file_extent_item->offset),
- (unsigned long long)
- le64_to_cpu(file_extent_item->num_bytes));
- if (BTRFS_FILE_EXTENT_REG != file_extent_item->type ||
- ((u64)0) == le64_to_cpu(file_extent_item->disk_bytenr))
- return 0;
+ le64_to_cpu(file_extent_item.disk_bytenr),
+ (unsigned long long)le64_to_cpu(file_extent_item.offset),
+ (unsigned long long)num_bytes);
while (num_bytes > 0) {
u32 chunk_len;
int num_copies;
int mirror_num;
- if (num_bytes > BTRFSIC_BLOCK_SIZE)
- chunk_len = BTRFSIC_BLOCK_SIZE;
+ if (num_bytes > state->datablock_size)
+ chunk_len = state->datablock_size;
else
chunk_len = num_bytes;
num_copies =
btrfs_num_copies(&state->root->fs_info->mapping_tree,
- next_bytenr, PAGE_SIZE);
+ next_bytenr, state->datablock_size);
if (state->print_mask & BTRFSIC_PRINT_MASK_NUM_COPIES)
printk(KERN_INFO "num_copies(log_bytenr=%llu) = %d\n",
(unsigned long long)next_bytenr, num_copies);
block_ctx_out->dev_bytenr = multi->stripes[0].physical;
block_ctx_out->start = bytenr;
block_ctx_out->len = len;
- block_ctx_out->data = NULL;
- block_ctx_out->bh = NULL;
+ block_ctx_out->datav = NULL;
+ block_ctx_out->pagev = NULL;
+ block_ctx_out->mem_to_free = NULL;
if (0 == ret)
kfree(multi);
block_ctx_out->dev_bytenr = bytenr;
block_ctx_out->start = bytenr;
block_ctx_out->len = len;
- block_ctx_out->data = NULL;
- block_ctx_out->bh = NULL;
+ block_ctx_out->datav = NULL;
+ block_ctx_out->pagev = NULL;
+ block_ctx_out->mem_to_free = NULL;
if (NULL != block_ctx_out->dev) {
return 0;
} else {
static void btrfsic_release_block_ctx(struct btrfsic_block_data_ctx *block_ctx)
{
- if (NULL != block_ctx->bh) {
- brelse(block_ctx->bh);
- block_ctx->bh = NULL;
+ if (block_ctx->mem_to_free) {
+ unsigned int num_pages;
+
+ BUG_ON(!block_ctx->datav);
+ BUG_ON(!block_ctx->pagev);
+ num_pages = (block_ctx->len + (u64)PAGE_CACHE_SIZE - 1) >>
+ PAGE_CACHE_SHIFT;
+ while (num_pages > 0) {
+ num_pages--;
+ if (block_ctx->datav[num_pages]) {
+ kunmap(block_ctx->pagev[num_pages]);
+ block_ctx->datav[num_pages] = NULL;
+ }
+ if (block_ctx->pagev[num_pages]) {
+ __free_page(block_ctx->pagev[num_pages]);
+ block_ctx->pagev[num_pages] = NULL;
+ }
+ }
+
+ kfree(block_ctx->mem_to_free);
+ block_ctx->mem_to_free = NULL;
+ block_ctx->pagev = NULL;
+ block_ctx->datav = NULL;
}
}
static int btrfsic_read_block(struct btrfsic_state *state,
struct btrfsic_block_data_ctx *block_ctx)
{
- block_ctx->bh = NULL;
- if (block_ctx->dev_bytenr & 4095) {
+ unsigned int num_pages;
+ unsigned int i;
+ u64 dev_bytenr;
+ int ret;
+
+ BUG_ON(block_ctx->datav);
+ BUG_ON(block_ctx->pagev);
+ BUG_ON(block_ctx->mem_to_free);
+ if (block_ctx->dev_bytenr & ((u64)PAGE_CACHE_SIZE - 1)) {
printk(KERN_INFO
"btrfsic: read_block() with unaligned bytenr %llu\n",
(unsigned long long)block_ctx->dev_bytenr);
return -1;
}
- if (block_ctx->len > 4096) {
- printk(KERN_INFO
- "btrfsic: read_block() with too huge size %d\n",
- block_ctx->len);
+
+ num_pages = (block_ctx->len + (u64)PAGE_CACHE_SIZE - 1) >>
+ PAGE_CACHE_SHIFT;
+ block_ctx->mem_to_free = kzalloc((sizeof(*block_ctx->datav) +
+ sizeof(*block_ctx->pagev)) *
+ num_pages, GFP_NOFS);
+ if (!block_ctx->mem_to_free)
return -1;
+ block_ctx->datav = block_ctx->mem_to_free;
+ block_ctx->pagev = (struct page **)(block_ctx->datav + num_pages);
+ for (i = 0; i < num_pages; i++) {
+ block_ctx->pagev[i] = alloc_page(GFP_NOFS);
+ if (!block_ctx->pagev[i])
+ return -1;
}
- block_ctx->bh = __bread(block_ctx->dev->bdev,
- block_ctx->dev_bytenr >> 12, 4096);
- if (NULL == block_ctx->bh)
- return -1;
- block_ctx->data = block_ctx->bh->b_data;
+ dev_bytenr = block_ctx->dev_bytenr;
+ for (i = 0; i < num_pages;) {
+ struct bio *bio;
+ unsigned int j;
+ DECLARE_COMPLETION_ONSTACK(complete);
+
+ bio = bio_alloc(GFP_NOFS, num_pages - i);
+ if (!bio) {
+ printk(KERN_INFO
+ "btrfsic: bio_alloc() for %u pages failed!\n",
+ num_pages - i);
+ return -1;
+ }
+ bio->bi_bdev = block_ctx->dev->bdev;
+ bio->bi_sector = dev_bytenr >> 9;
+ bio->bi_end_io = btrfsic_complete_bio_end_io;
+ bio->bi_private = &complete;
+
+ for (j = i; j < num_pages; j++) {
+ ret = bio_add_page(bio, block_ctx->pagev[j],
+ PAGE_CACHE_SIZE, 0);
+ if (PAGE_CACHE_SIZE != ret)
+ break;
+ }
+ if (j == i) {
+ printk(KERN_INFO
+ "btrfsic: error, failed to add a single page!\n");
+ return -1;
+ }
+ submit_bio(READ, bio);
+
+ /* this will also unplug the queue */
+ wait_for_completion(&complete);
+
+ if (!test_bit(BIO_UPTODATE, &bio->bi_flags)) {
+ printk(KERN_INFO
+ "btrfsic: read error at logical %llu dev %s!\n",
+ block_ctx->start, block_ctx->dev->name);
+ bio_put(bio);
+ return -1;
+ }
+ bio_put(bio);
+ dev_bytenr += (j - i) * PAGE_CACHE_SIZE;
+ i = j;
+ }
+ for (i = 0; i < num_pages; i++) {
+ block_ctx->datav[i] = kmap(block_ctx->pagev[i]);
+ if (!block_ctx->datav[i]) {
+ printk(KERN_INFO "btrfsic: kmap() failed (dev %s)!\n",
+ block_ctx->dev->name);
+ return -1;
+ }
+ }
return block_ctx->len;
}
+static void btrfsic_complete_bio_end_io(struct bio *bio, int err)
+{
+ complete((struct completion *)bio->bi_private);
+}
+
static void btrfsic_dump_database(struct btrfsic_state *state)
{
struct list_head *elem_all;
* (note that this test fails for the super block)
*/
static int btrfsic_test_for_metadata(struct btrfsic_state *state,
- const u8 *data, unsigned int size)
+ char **datav, unsigned int num_pages)
{
struct btrfs_header *h;
u8 csum[BTRFS_CSUM_SIZE];
u32 crc = ~(u32)0;
- int fail = 0;
- int crc_fail = 0;
+ unsigned int i;
- h = (struct btrfs_header *)data;
+ if (num_pages * PAGE_CACHE_SIZE < state->metablock_size)
+ return 1; /* not metadata */
+ num_pages = state->metablock_size >> PAGE_CACHE_SHIFT;
+ h = (struct btrfs_header *)datav[0];
if (memcmp(h->fsid, state->root->fs_info->fsid, BTRFS_UUID_SIZE))
- fail++;
+ return 1;
+
+ for (i = 0; i < num_pages; i++) {
+ u8 *data = i ? datav[i] : (datav[i] + BTRFS_CSUM_SIZE);
+ size_t sublen = i ? PAGE_CACHE_SIZE :
+ (PAGE_CACHE_SIZE - BTRFS_CSUM_SIZE);
- crc = crc32c(crc, data + BTRFS_CSUM_SIZE, PAGE_SIZE - BTRFS_CSUM_SIZE);
+ crc = crc32c(crc, data, sublen);
+ }
btrfs_csum_final(crc, csum);
if (memcmp(csum, h->csum, state->csum_size))
- crc_fail++;
+ return 1;
- return fail || crc_fail;
+ return 0; /* is metadata */
}
static void btrfsic_process_written_block(struct btrfsic_dev_state *dev_state,
- u64 dev_bytenr,
- u8 *mapped_data, unsigned int len,
- struct bio *bio,
- int *bio_is_patched,
+ u64 dev_bytenr, char **mapped_datav,
+ unsigned int num_pages,
+ struct bio *bio, int *bio_is_patched,
struct buffer_head *bh,
int submit_bio_bh_rw)
{
int ret;
struct btrfsic_state *state = dev_state->state;
struct block_device *bdev = dev_state->bdev;
+ unsigned int processed_len;
- WARN_ON(len > PAGE_SIZE);
- is_metadata = (0 == btrfsic_test_for_metadata(state, mapped_data, len));
if (NULL != bio_is_patched)
*bio_is_patched = 0;
+again:
+ if (num_pages == 0)
+ return;
+
+ processed_len = 0;
+ is_metadata = (0 == btrfsic_test_for_metadata(state, mapped_datav,
+ num_pages));
+
block = btrfsic_block_hashtable_lookup(bdev, dev_bytenr,
&state->block_hashtable);
if (NULL != block) {
if (block->is_superblock) {
bytenr = le64_to_cpu(((struct btrfs_super_block *)
- mapped_data)->bytenr);
+ mapped_datav[0])->bytenr);
+ if (num_pages * PAGE_CACHE_SIZE <
+ BTRFS_SUPER_INFO_SIZE) {
+ printk(KERN_INFO
+ "btrfsic: cannot work with too short bios!\n");
+ return;
+ }
is_metadata = 1;
+ BUG_ON(BTRFS_SUPER_INFO_SIZE & (PAGE_CACHE_SIZE - 1));
+ processed_len = BTRFS_SUPER_INFO_SIZE;
if (state->print_mask &
BTRFSIC_PRINT_MASK_TREE_BEFORE_SB_WRITE) {
printk(KERN_INFO
}
if (is_metadata) {
if (!block->is_superblock) {
+ if (num_pages * PAGE_CACHE_SIZE <
+ state->metablock_size) {
+ printk(KERN_INFO
+ "btrfsic: cannot work with too short bios!\n");
+ return;
+ }
+ processed_len = state->metablock_size;
bytenr = le64_to_cpu(((struct btrfs_header *)
- mapped_data)->bytenr);
+ mapped_datav[0])->bytenr);
btrfsic_cmp_log_and_dev_bytenr(state, bytenr,
dev_state,
- dev_bytenr,
- mapped_data);
+ dev_bytenr);
}
if (block->logical_bytenr != bytenr) {
printk(KERN_INFO
block->mirror_num,
btrfsic_get_block_type(state, block));
} else {
+ if (num_pages * PAGE_CACHE_SIZE <
+ state->datablock_size) {
+ printk(KERN_INFO
+ "btrfsic: cannot work with too short bios!\n");
+ return;
+ }
+ processed_len = state->datablock_size;
bytenr = block->logical_bytenr;
if (state->print_mask & BTRFSIC_PRINT_MASK_VERBOSE)
printk(KERN_INFO
le64_to_cpu(block->disk_key.offset),
(unsigned long long)
le64_to_cpu(((struct btrfs_header *)
- mapped_data)->generation),
+ mapped_datav[0])->generation),
(unsigned long long)
state->max_superblock_generation);
btrfsic_dump_tree(state);
(unsigned long long)block->generation,
(unsigned long long)
le64_to_cpu(((struct btrfs_header *)
- mapped_data)->generation));
+ mapped_datav[0])->generation));
/* it would not be safe to go on */
btrfsic_dump_tree(state);
- return;
+ goto continue_loop;
}
/*
}
if (block->is_superblock)
- ret = btrfsic_map_superblock(state, bytenr, len,
+ ret = btrfsic_map_superblock(state, bytenr,
+ processed_len,
bdev, &block_ctx);
else
- ret = btrfsic_map_block(state, bytenr, len,
+ ret = btrfsic_map_block(state, bytenr, processed_len,
&block_ctx, 0);
if (ret) {
printk(KERN_INFO
"btrfsic: btrfsic_map_block(root @%llu)"
" failed!\n", (unsigned long long)bytenr);
- return;
+ goto continue_loop;
}
- block_ctx.data = mapped_data;
+ block_ctx.datav = mapped_datav;
/* the following is required in case of writes to mirrors,
* use the same that was used for the lookup */
block_ctx.dev = dev_state;
block->logical_bytenr = bytenr;
block->is_metadata = 1;
if (block->is_superblock) {
+ BUG_ON(PAGE_CACHE_SIZE !=
+ BTRFS_SUPER_INFO_SIZE);
ret = btrfsic_process_written_superblock(
state,
block,
(struct btrfs_super_block *)
- mapped_data);
+ mapped_datav[0]);
if (state->print_mask &
BTRFSIC_PRINT_MASK_TREE_AFTER_SB_WRITE) {
printk(KERN_INFO
state,
block,
&block_ctx,
- (struct btrfs_header *)
- block_ctx.data,
0, 0);
}
if (ret)
u64 bytenr;
if (!is_metadata) {
+ processed_len = state->datablock_size;
if (state->print_mask & BTRFSIC_PRINT_MASK_VERBOSE)
printk(KERN_INFO "Written block (%s/%llu/?)"
" !found in hash table, D.\n",
dev_state->name,
(unsigned long long)dev_bytenr);
- if (!state->include_extent_data)
- return; /* ignore that written D block */
+ if (!state->include_extent_data) {
+ /* ignore that written D block */
+ goto continue_loop;
+ }
/* this is getting ugly for the
* include_extent_data case... */
bytenr = 0; /* unknown */
block_ctx.start = bytenr;
- block_ctx.len = len;
- block_ctx.bh = NULL;
+ block_ctx.len = processed_len;
+ block_ctx.mem_to_free = NULL;
+ block_ctx.pagev = NULL;
} else {
+ processed_len = state->metablock_size;
bytenr = le64_to_cpu(((struct btrfs_header *)
- mapped_data)->bytenr);
+ mapped_datav[0])->bytenr);
btrfsic_cmp_log_and_dev_bytenr(state, bytenr, dev_state,
- dev_bytenr,
- mapped_data);
+ dev_bytenr);
if (state->print_mask & BTRFSIC_PRINT_MASK_VERBOSE)
printk(KERN_INFO
"Written block @%llu (%s/%llu/?)"
dev_state->name,
(unsigned long long)dev_bytenr);
- ret = btrfsic_map_block(state, bytenr, len, &block_ctx,
- 0);
+ ret = btrfsic_map_block(state, bytenr, processed_len,
+ &block_ctx, 0);
if (ret) {
printk(KERN_INFO
"btrfsic: btrfsic_map_block(root @%llu)"
" failed!\n",
(unsigned long long)dev_bytenr);
- return;
+ goto continue_loop;
}
}
- block_ctx.data = mapped_data;
+ block_ctx.datav = mapped_datav;
/* the following is required in case of writes to mirrors,
* use the same that was used for the lookup */
block_ctx.dev = dev_state;
if (NULL == block) {
printk(KERN_INFO "btrfsic: error, kmalloc failed!\n");
btrfsic_release_block_ctx(&block_ctx);
- return;
+ goto continue_loop;
}
block->dev_state = dev_state;
block->dev_bytenr = dev_bytenr;
if (is_metadata) {
ret = btrfsic_process_metablock(state, block,
- &block_ctx,
- (struct btrfs_header *)
- block_ctx.data, 0, 0);
+ &block_ctx, 0, 0);
if (ret)
printk(KERN_INFO
"btrfsic: process_metablock(root @%llu)"
}
btrfsic_release_block_ctx(&block_ctx);
}
+
+continue_loop:
+ BUG_ON(!processed_len);
+ dev_bytenr += processed_len;
+ mapped_datav += processed_len >> PAGE_CACHE_SHIFT;
+ num_pages -= processed_len >> PAGE_CACHE_SHIFT;
+ goto again;
}
static void btrfsic_bio_end_io(struct bio *bp, int bio_error_status)
num_copies =
btrfs_num_copies(&state->root->fs_info->mapping_tree,
- next_bytenr, PAGE_SIZE);
+ next_bytenr, BTRFS_SUPER_INFO_SIZE);
if (state->print_mask & BTRFSIC_PRINT_MASK_NUM_COPIES)
printk(KERN_INFO "num_copies(log_bytenr=%llu) = %d\n",
(unsigned long long)next_bytenr, num_copies);
printk(KERN_INFO
"btrfsic_process_written_superblock("
"mirror_num=%d)\n", mirror_num);
- ret = btrfsic_map_block(state, next_bytenr, PAGE_SIZE,
+ ret = btrfsic_map_block(state, next_bytenr,
+ BTRFS_SUPER_INFO_SIZE,
&tmp_next_block_ctx,
mirror_num);
if (ret) {
static void btrfsic_cmp_log_and_dev_bytenr(struct btrfsic_state *state,
u64 bytenr,
struct btrfsic_dev_state *dev_state,
- u64 dev_bytenr, char *data)
+ u64 dev_bytenr)
{
int num_copies;
int mirror_num;
int match = 0;
num_copies = btrfs_num_copies(&state->root->fs_info->mapping_tree,
- bytenr, PAGE_SIZE);
+ bytenr, state->metablock_size);
for (mirror_num = 1; mirror_num <= num_copies; mirror_num++) {
- ret = btrfsic_map_block(state, bytenr, PAGE_SIZE,
+ ret = btrfsic_map_block(state, bytenr, state->metablock_size,
&block_ctx, mirror_num);
if (ret) {
printk(KERN_INFO "btrfsic:"
(unsigned long long)bytenr, dev_state->name,
(unsigned long long)dev_bytenr);
for (mirror_num = 1; mirror_num <= num_copies; mirror_num++) {
- ret = btrfsic_map_block(state, bytenr, PAGE_SIZE,
+ ret = btrfsic_map_block(state, bytenr,
+ state->metablock_size,
&block_ctx, mirror_num);
if (ret)
continue;
(unsigned long)bh->b_size, bh->b_data,
bh->b_bdev);
btrfsic_process_written_block(dev_state, dev_bytenr,
- bh->b_data, bh->b_size, NULL,
+ &bh->b_data, 1, NULL,
NULL, bh, rw);
} else if (NULL != dev_state && (rw & REQ_FLUSH)) {
if (dev_state->state->print_mask &
BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH)
printk(KERN_INFO
- "submit_bh(rw=0x%x) FLUSH, bdev=%p)\n",
+ "submit_bh(rw=0x%x FLUSH, bdev=%p)\n",
rw, bh->b_bdev);
if (!dev_state->dummy_block_for_bio_bh_flush.is_iodone) {
if ((dev_state->state->print_mask &
unsigned int i;
u64 dev_bytenr;
int bio_is_patched;
+ char **mapped_datav;
dev_bytenr = 512 * bio->bi_sector;
bio_is_patched = 0;
(unsigned long long)dev_bytenr,
bio->bi_bdev);
+ mapped_datav = kmalloc(sizeof(*mapped_datav) * bio->bi_vcnt,
+ GFP_NOFS);
+ if (!mapped_datav)
+ goto leave;
for (i = 0; i < bio->bi_vcnt; i++) {
- u8 *mapped_data;
-
- mapped_data = kmap(bio->bi_io_vec[i].bv_page);
+ BUG_ON(bio->bi_io_vec[i].bv_len != PAGE_CACHE_SIZE);
+ mapped_datav[i] = kmap(bio->bi_io_vec[i].bv_page);
+ if (!mapped_datav[i]) {
+ while (i > 0) {
+ i--;
+ kunmap(bio->bi_io_vec[i].bv_page);
+ }
+ kfree(mapped_datav);
+ goto leave;
+ }
if ((BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH |
BTRFSIC_PRINT_MASK_VERBOSE) ==
(dev_state->state->print_mask &
(BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH |
BTRFSIC_PRINT_MASK_VERBOSE)))
printk(KERN_INFO
- "#%u: page=%p, mapped=%p, len=%u,"
- " offset=%u\n",
+ "#%u: page=%p, len=%u, offset=%u\n",
i, bio->bi_io_vec[i].bv_page,
- mapped_data,
bio->bi_io_vec[i].bv_len,
bio->bi_io_vec[i].bv_offset);
- btrfsic_process_written_block(dev_state, dev_bytenr,
- mapped_data,
- bio->bi_io_vec[i].bv_len,
- bio, &bio_is_patched,
- NULL, rw);
+ }
+ btrfsic_process_written_block(dev_state, dev_bytenr,
+ mapped_datav, bio->bi_vcnt,
+ bio, &bio_is_patched,
+ NULL, rw);
+ while (i > 0) {
+ i--;
kunmap(bio->bi_io_vec[i].bv_page);
- dev_bytenr += bio->bi_io_vec[i].bv_len;
}
+ kfree(mapped_datav);
} else if (NULL != dev_state && (rw & REQ_FLUSH)) {
if (dev_state->state->print_mask &
BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH)
printk(KERN_INFO
- "submit_bio(rw=0x%x) FLUSH, bdev=%p)\n",
+ "submit_bio(rw=0x%x FLUSH, bdev=%p)\n",
rw, bio->bi_bdev);
if (!dev_state->dummy_block_for_bio_bh_flush.is_iodone) {
if ((dev_state->state->print_mask &
bio->bi_end_io = btrfsic_bio_end_io;
}
}
+leave:
mutex_unlock(&btrfsic_mutex);
submit_bio(rw, bio);
struct list_head *dev_head = &fs_devices->devices;
struct btrfs_device *device;
+ if (root->nodesize != root->leafsize) {
+ printk(KERN_INFO
+ "btrfsic: cannot handle nodesize %d != leafsize %d!\n",
+ root->nodesize, root->leafsize);
+ return -1;
+ }
+ if (root->nodesize & ((u64)PAGE_CACHE_SIZE - 1)) {
+ printk(KERN_INFO
+ "btrfsic: cannot handle nodesize %d not being a multiple of PAGE_CACHE_SIZE %ld!\n",
+ root->nodesize, (unsigned long)PAGE_CACHE_SIZE);
+ return -1;
+ }
+ if (root->leafsize & ((u64)PAGE_CACHE_SIZE - 1)) {
+ printk(KERN_INFO
+ "btrfsic: cannot handle leafsize %d not being a multiple of PAGE_CACHE_SIZE %ld!\n",
+ root->leafsize, (unsigned long)PAGE_CACHE_SIZE);
+ return -1;
+ }
+ if (root->sectorsize & ((u64)PAGE_CACHE_SIZE - 1)) {
+ printk(KERN_INFO
+ "btrfsic: cannot handle sectorsize %d not being a multiple of PAGE_CACHE_SIZE %ld!\n",
+ root->sectorsize, (unsigned long)PAGE_CACHE_SIZE);
+ return -1;
+ }
state = kzalloc(sizeof(*state), GFP_NOFS);
if (NULL == state) {
printk(KERN_INFO "btrfs check-integrity: kmalloc() failed!\n");
state->print_mask = print_mask;
state->include_extent_data = including_extent_data;
state->csum_size = 0;
+ state->metablock_size = root->nodesize;
+ state->datablock_size = root->sectorsize;
INIT_LIST_HEAD(&state->all_blocks_list);
btrfsic_block_hashtable_init(&state->block_hashtable);
btrfsic_block_link_hashtable_init(&state->block_link_hashtable);
btrfsic_block_link_free(l);
}
- if (b_all->is_iodone)
+ if (b_all->is_iodone || b_all->never_written)
btrfsic_block_free(b_all);
else
printk(KERN_INFO "btrfs: attempt to free %c-block"
#include <linux/sched.h>
#include <linux/slab.h>
+#include <linux/rbtree.h>
#include "ctree.h"
#include "disk-io.h"
#include "transaction.h"
struct extent_buffer *dst_buf,
struct extent_buffer *src_buf);
static void del_ptr(struct btrfs_trans_handle *trans, struct btrfs_root *root,
- struct btrfs_path *path, int level, int slot);
+ struct btrfs_path *path, int level, int slot,
+ int tree_mod_log);
+static void tree_mod_log_free_eb(struct btrfs_fs_info *fs_info,
+ struct extent_buffer *eb);
+struct extent_buffer *read_old_tree_block(struct btrfs_root *root, u64 bytenr,
+ u32 blocksize, u64 parent_transid,
+ u64 time_seq);
+struct extent_buffer *btrfs_find_old_tree_block(struct btrfs_root *root,
+ u64 bytenr, u32 blocksize,
+ u64 time_seq);
struct btrfs_path *btrfs_alloc_path(void)
{
cow = btrfs_alloc_free_block(trans, root, buf->len, 0,
new_root_objectid, &disk_key, level,
- buf->start, 0, 1);
+ buf->start, 0);
if (IS_ERR(cow))
return PTR_ERR(cow);
return 0;
}
+enum mod_log_op {
+ MOD_LOG_KEY_REPLACE,
+ MOD_LOG_KEY_ADD,
+ MOD_LOG_KEY_REMOVE,
+ MOD_LOG_KEY_REMOVE_WHILE_FREEING,
+ MOD_LOG_KEY_REMOVE_WHILE_MOVING,
+ MOD_LOG_MOVE_KEYS,
+ MOD_LOG_ROOT_REPLACE,
+};
+
+struct tree_mod_move {
+ int dst_slot;
+ int nr_items;
+};
+
+struct tree_mod_root {
+ u64 logical;
+ u8 level;
+};
+
+struct tree_mod_elem {
+ struct rb_node node;
+ u64 index; /* shifted logical */
+ struct seq_list elem;
+ enum mod_log_op op;
+
+ /* this is used for MOD_LOG_KEY_* and MOD_LOG_MOVE_KEYS operations */
+ int slot;
+
+ /* this is used for MOD_LOG_KEY* and MOD_LOG_ROOT_REPLACE */
+ u64 generation;
+
+ /* those are used for op == MOD_LOG_KEY_{REPLACE,REMOVE} */
+ struct btrfs_disk_key key;
+ u64 blockptr;
+
+ /* this is used for op == MOD_LOG_MOVE_KEYS */
+ struct tree_mod_move move;
+
+ /* this is used for op == MOD_LOG_ROOT_REPLACE */
+ struct tree_mod_root old_root;
+};
+
+static inline void
+__get_tree_mod_seq(struct btrfs_fs_info *fs_info, struct seq_list *elem)
+{
+ elem->seq = atomic_inc_return(&fs_info->tree_mod_seq);
+ list_add_tail(&elem->list, &fs_info->tree_mod_seq_list);
+}
+
+void btrfs_get_tree_mod_seq(struct btrfs_fs_info *fs_info,
+ struct seq_list *elem)
+{
+ elem->flags = 1;
+ spin_lock(&fs_info->tree_mod_seq_lock);
+ __get_tree_mod_seq(fs_info, elem);
+ spin_unlock(&fs_info->tree_mod_seq_lock);
+}
+
+void btrfs_put_tree_mod_seq(struct btrfs_fs_info *fs_info,
+ struct seq_list *elem)
+{
+ struct rb_root *tm_root;
+ struct rb_node *node;
+ struct rb_node *next;
+ struct seq_list *cur_elem;
+ struct tree_mod_elem *tm;
+ u64 min_seq = (u64)-1;
+ u64 seq_putting = elem->seq;
+
+ if (!seq_putting)
+ return;
+
+ BUG_ON(!(elem->flags & 1));
+ spin_lock(&fs_info->tree_mod_seq_lock);
+ list_del(&elem->list);
+
+ list_for_each_entry(cur_elem, &fs_info->tree_mod_seq_list, list) {
+ if ((cur_elem->flags & 1) && cur_elem->seq < min_seq) {
+ if (seq_putting > cur_elem->seq) {
+ /*
+ * blocker with lower sequence number exists, we
+ * cannot remove anything from the log
+ */
+ goto out;
+ }
+ min_seq = cur_elem->seq;
+ }
+ }
+
+ /*
+ * anything that's lower than the lowest existing (read: blocked)
+ * sequence number can be removed from the tree.
+ */
+ write_lock(&fs_info->tree_mod_log_lock);
+ tm_root = &fs_info->tree_mod_log;
+ for (node = rb_first(tm_root); node; node = next) {
+ next = rb_next(node);
+ tm = container_of(node, struct tree_mod_elem, node);
+ if (tm->elem.seq > min_seq)
+ continue;
+ rb_erase(node, tm_root);
+ list_del(&tm->elem.list);
+ kfree(tm);
+ }
+ write_unlock(&fs_info->tree_mod_log_lock);
+out:
+ spin_unlock(&fs_info->tree_mod_seq_lock);
+}
+
+/*
+ * key order of the log:
+ * index -> sequence
+ *
+ * the index is the shifted logical of the *new* root node for root replace
+ * operations, or the shifted logical of the affected block for all other
+ * operations.
+ */
+static noinline int
+__tree_mod_log_insert(struct btrfs_fs_info *fs_info, struct tree_mod_elem *tm)
+{
+ struct rb_root *tm_root;
+ struct rb_node **new;
+ struct rb_node *parent = NULL;
+ struct tree_mod_elem *cur;
+ int ret = 0;
+
+ BUG_ON(!tm || !tm->elem.seq);
+
+ write_lock(&fs_info->tree_mod_log_lock);
+ tm_root = &fs_info->tree_mod_log;
+ new = &tm_root->rb_node;
+ while (*new) {
+ cur = container_of(*new, struct tree_mod_elem, node);
+ parent = *new;
+ if (cur->index < tm->index)
+ new = &((*new)->rb_left);
+ else if (cur->index > tm->index)
+ new = &((*new)->rb_right);
+ else if (cur->elem.seq < tm->elem.seq)
+ new = &((*new)->rb_left);
+ else if (cur->elem.seq > tm->elem.seq)
+ new = &((*new)->rb_right);
+ else {
+ kfree(tm);
+ ret = -EEXIST;
+ goto unlock;
+ }
+ }
+
+ rb_link_node(&tm->node, parent, new);
+ rb_insert_color(&tm->node, tm_root);
+unlock:
+ write_unlock(&fs_info->tree_mod_log_lock);
+ return ret;
+}
+
+static inline int tree_mod_dont_log(struct btrfs_fs_info *fs_info,
+ struct extent_buffer *eb) {
+ smp_mb();
+ if (list_empty(&(fs_info)->tree_mod_seq_list))
+ return 1;
+ if (!eb)
+ return 0;
+ if (btrfs_header_level(eb) == 0)
+ return 1;
+ return 0;
+}
+
+static inline int tree_mod_alloc(struct btrfs_fs_info *fs_info, gfp_t flags,
+ struct tree_mod_elem **tm_ret)
+{
+ struct tree_mod_elem *tm;
+ int seq;
+
+ if (tree_mod_dont_log(fs_info, NULL))
+ return 0;
+
+ tm = *tm_ret = kzalloc(sizeof(*tm), flags);
+ if (!tm)
+ return -ENOMEM;
+
+ tm->elem.flags = 0;
+ spin_lock(&fs_info->tree_mod_seq_lock);
+ if (list_empty(&fs_info->tree_mod_seq_list)) {
+ /*
+ * someone emptied the list while we were waiting for the lock.
+ * we must not add to the list, because no blocker exists. items
+ * are removed from the list only when the existing blocker is
+ * removed from the list.
+ */
+ kfree(tm);
+ seq = 0;
+ } else {
+ __get_tree_mod_seq(fs_info, &tm->elem);
+ seq = tm->elem.seq;
+ }
+ spin_unlock(&fs_info->tree_mod_seq_lock);
+
+ return seq;
+}
+
+static noinline int
+tree_mod_log_insert_key_mask(struct btrfs_fs_info *fs_info,
+ struct extent_buffer *eb, int slot,
+ enum mod_log_op op, gfp_t flags)
+{
+ struct tree_mod_elem *tm;
+ int ret;
+
+ ret = tree_mod_alloc(fs_info, flags, &tm);
+ if (ret <= 0)
+ return ret;
+
+ tm->index = eb->start >> PAGE_CACHE_SHIFT;
+ if (op != MOD_LOG_KEY_ADD) {
+ btrfs_node_key(eb, &tm->key, slot);
+ tm->blockptr = btrfs_node_blockptr(eb, slot);
+ }
+ tm->op = op;
+ tm->slot = slot;
+ tm->generation = btrfs_node_ptr_generation(eb, slot);
+
+ return __tree_mod_log_insert(fs_info, tm);
+}
+
+static noinline int
+tree_mod_log_insert_key(struct btrfs_fs_info *fs_info, struct extent_buffer *eb,
+ int slot, enum mod_log_op op)
+{
+ return tree_mod_log_insert_key_mask(fs_info, eb, slot, op, GFP_NOFS);
+}
+
+static noinline int
+tree_mod_log_insert_move(struct btrfs_fs_info *fs_info,
+ struct extent_buffer *eb, int dst_slot, int src_slot,
+ int nr_items, gfp_t flags)
+{
+ struct tree_mod_elem *tm;
+ int ret;
+ int i;
+
+ if (tree_mod_dont_log(fs_info, eb))
+ return 0;
+
+ for (i = 0; i + dst_slot < src_slot && i < nr_items; i++) {
+ ret = tree_mod_log_insert_key(fs_info, eb, i + dst_slot,
+ MOD_LOG_KEY_REMOVE_WHILE_MOVING);
+ BUG_ON(ret < 0);
+ }
+
+ ret = tree_mod_alloc(fs_info, flags, &tm);
+ if (ret <= 0)
+ return ret;
+
+ tm->index = eb->start >> PAGE_CACHE_SHIFT;
+ tm->slot = src_slot;
+ tm->move.dst_slot = dst_slot;
+ tm->move.nr_items = nr_items;
+ tm->op = MOD_LOG_MOVE_KEYS;
+
+ return __tree_mod_log_insert(fs_info, tm);
+}
+
+static noinline int
+tree_mod_log_insert_root(struct btrfs_fs_info *fs_info,
+ struct extent_buffer *old_root,
+ struct extent_buffer *new_root, gfp_t flags)
+{
+ struct tree_mod_elem *tm;
+ int ret;
+
+ ret = tree_mod_alloc(fs_info, flags, &tm);
+ if (ret <= 0)
+ return ret;
+
+ tm->index = new_root->start >> PAGE_CACHE_SHIFT;
+ tm->old_root.logical = old_root->start;
+ tm->old_root.level = btrfs_header_level(old_root);
+ tm->generation = btrfs_header_generation(old_root);
+ tm->op = MOD_LOG_ROOT_REPLACE;
+
+ return __tree_mod_log_insert(fs_info, tm);
+}
+
+static struct tree_mod_elem *
+__tree_mod_log_search(struct btrfs_fs_info *fs_info, u64 start, u64 min_seq,
+ int smallest)
+{
+ struct rb_root *tm_root;
+ struct rb_node *node;
+ struct tree_mod_elem *cur = NULL;
+ struct tree_mod_elem *found = NULL;
+ u64 index = start >> PAGE_CACHE_SHIFT;
+
+ read_lock(&fs_info->tree_mod_log_lock);
+ tm_root = &fs_info->tree_mod_log;
+ node = tm_root->rb_node;
+ while (node) {
+ cur = container_of(node, struct tree_mod_elem, node);
+ if (cur->index < index) {
+ node = node->rb_left;
+ } else if (cur->index > index) {
+ node = node->rb_right;
+ } else if (cur->elem.seq < min_seq) {
+ node = node->rb_left;
+ } else if (!smallest) {
+ /* we want the node with the highest seq */
+ if (found)
+ BUG_ON(found->elem.seq > cur->elem.seq);
+ found = cur;
+ node = node->rb_left;
+ } else if (cur->elem.seq > min_seq) {
+ /* we want the node with the smallest seq */
+ if (found)
+ BUG_ON(found->elem.seq < cur->elem.seq);
+ found = cur;
+ node = node->rb_right;
+ } else {
+ found = cur;
+ break;
+ }
+ }
+ read_unlock(&fs_info->tree_mod_log_lock);
+
+ return found;
+}
+
+/*
+ * this returns the element from the log with the smallest time sequence
+ * value that's in the log (the oldest log item). any element with a time
+ * sequence lower than min_seq will be ignored.
+ */
+static struct tree_mod_elem *
+tree_mod_log_search_oldest(struct btrfs_fs_info *fs_info, u64 start,
+ u64 min_seq)
+{
+ return __tree_mod_log_search(fs_info, start, min_seq, 1);
+}
+
+/*
+ * this returns the element from the log with the largest time sequence
+ * value that's in the log (the most recent log item). any element with
+ * a time sequence lower than min_seq will be ignored.
+ */
+static struct tree_mod_elem *
+tree_mod_log_search(struct btrfs_fs_info *fs_info, u64 start, u64 min_seq)
+{
+ return __tree_mod_log_search(fs_info, start, min_seq, 0);
+}
+
+static inline void
+tree_mod_log_eb_copy(struct btrfs_fs_info *fs_info, struct extent_buffer *dst,
+ struct extent_buffer *src, unsigned long dst_offset,
+ unsigned long src_offset, int nr_items)
+{
+ int ret;
+ int i;
+
+ if (tree_mod_dont_log(fs_info, NULL))
+ return;
+
+ if (btrfs_header_level(dst) == 0 && btrfs_header_level(src) == 0)
+ return;
+
+ /* speed this up by single seq for all operations? */
+ for (i = 0; i < nr_items; i++) {
+ ret = tree_mod_log_insert_key(fs_info, src, i + src_offset,
+ MOD_LOG_KEY_REMOVE);
+ BUG_ON(ret < 0);
+ ret = tree_mod_log_insert_key(fs_info, dst, i + dst_offset,
+ MOD_LOG_KEY_ADD);
+ BUG_ON(ret < 0);
+ }
+}
+
+static inline void
+tree_mod_log_eb_move(struct btrfs_fs_info *fs_info, struct extent_buffer *dst,
+ int dst_offset, int src_offset, int nr_items)
+{
+ int ret;
+ ret = tree_mod_log_insert_move(fs_info, dst, dst_offset, src_offset,
+ nr_items, GFP_NOFS);
+ BUG_ON(ret < 0);
+}
+
+static inline void
+tree_mod_log_set_node_key(struct btrfs_fs_info *fs_info,
+ struct extent_buffer *eb,
+ struct btrfs_disk_key *disk_key, int slot, int atomic)
+{
+ int ret;
+
+ ret = tree_mod_log_insert_key_mask(fs_info, eb, slot,
+ MOD_LOG_KEY_REPLACE,
+ atomic ? GFP_ATOMIC : GFP_NOFS);
+ BUG_ON(ret < 0);
+}
+
+static void tree_mod_log_free_eb(struct btrfs_fs_info *fs_info,
+ struct extent_buffer *eb)
+{
+ int i;
+ int ret;
+ u32 nritems;
+
+ if (tree_mod_dont_log(fs_info, eb))
+ return;
+
+ nritems = btrfs_header_nritems(eb);
+ for (i = nritems - 1; i >= 0; i--) {
+ ret = tree_mod_log_insert_key(fs_info, eb, i,
+ MOD_LOG_KEY_REMOVE_WHILE_FREEING);
+ BUG_ON(ret < 0);
+ }
+}
+
+static inline void
+tree_mod_log_set_root_pointer(struct btrfs_root *root,
+ struct extent_buffer *new_root_node)
+{
+ int ret;
+ tree_mod_log_free_eb(root->fs_info, root->node);
+ ret = tree_mod_log_insert_root(root->fs_info, root->node,
+ new_root_node, GFP_NOFS);
+ BUG_ON(ret < 0);
+}
+
/*
* check if the tree block can be shared by multiple trees
*/
ret = btrfs_dec_ref(trans, root, buf, 1, 1);
BUG_ON(ret); /* -ENOMEM */
}
+ /*
+ * don't log freeing in case we're freeing the root node, this
+ * is done by tree_mod_log_set_root_pointer later
+ */
+ if (buf != root->node && btrfs_header_level(buf) != 0)
+ tree_mod_log_free_eb(root->fs_info, buf);
clean_tree_block(trans, root, buf);
*last_ref = 1;
}
cow = btrfs_alloc_free_block(trans, root, buf->len, parent_start,
root->root_key.objectid, &disk_key,
- level, search_start, empty_size, 1);
+ level, search_start, empty_size);
if (IS_ERR(cow))
return PTR_ERR(cow);
parent_start = 0;
extent_buffer_get(cow);
+ tree_mod_log_set_root_pointer(root, cow);
rcu_assign_pointer(root->node, cow);
btrfs_free_tree_block(trans, root, buf, parent_start,
- last_ref, 1);
+ last_ref);
free_extent_buffer(buf);
add_root_to_dirty_list(root);
} else {
parent_start = 0;
WARN_ON(trans->transid != btrfs_header_generation(parent));
+ tree_mod_log_insert_key(root->fs_info, parent, parent_slot,
+ MOD_LOG_KEY_REPLACE);
btrfs_set_node_blockptr(parent, parent_slot,
cow->start);
btrfs_set_node_ptr_generation(parent, parent_slot,
trans->transid);
btrfs_mark_buffer_dirty(parent);
btrfs_free_tree_block(trans, root, buf, parent_start,
- last_ref, 1);
+ last_ref);
}
if (unlock_orig)
btrfs_tree_unlock(buf);
return 0;
}
+/*
+ * returns the logical address of the oldest predecessor of the given root.
+ * entries older than time_seq are ignored.
+ */
+static struct tree_mod_elem *
+__tree_mod_log_oldest_root(struct btrfs_fs_info *fs_info,
+ struct btrfs_root *root, u64 time_seq)
+{
+ struct tree_mod_elem *tm;
+ struct tree_mod_elem *found = NULL;
+ u64 root_logical = root->node->start;
+ int looped = 0;
+
+ if (!time_seq)
+ return 0;
+
+ /*
+ * the very last operation that's logged for a root is the replacement
+ * operation (if it is replaced at all). this has the index of the *new*
+ * root, making it the very first operation that's logged for this root.
+ */
+ while (1) {
+ tm = tree_mod_log_search_oldest(fs_info, root_logical,
+ time_seq);
+ if (!looped && !tm)
+ return 0;
+ /*
+ * we must have key remove operations in the log before the
+ * replace operation.
+ */
+ BUG_ON(!tm);
+
+ if (tm->op != MOD_LOG_ROOT_REPLACE)
+ break;
+
+ found = tm;
+ root_logical = tm->old_root.logical;
+ BUG_ON(root_logical == root->node->start);
+ looped = 1;
+ }
+
+ return found;
+}
+
+/*
+ * tm is a pointer to the first operation to rewind within eb. then, all
+ * previous operations will be rewinded (until we reach something older than
+ * time_seq).
+ */
+static void
+__tree_mod_log_rewind(struct extent_buffer *eb, u64 time_seq,
+ struct tree_mod_elem *first_tm)
+{
+ u32 n;
+ struct rb_node *next;
+ struct tree_mod_elem *tm = first_tm;
+ unsigned long o_dst;
+ unsigned long o_src;
+ unsigned long p_size = sizeof(struct btrfs_key_ptr);
+
+ n = btrfs_header_nritems(eb);
+ while (tm && tm->elem.seq >= time_seq) {
+ /*
+ * all the operations are recorded with the operator used for
+ * the modification. as we're going backwards, we do the
+ * opposite of each operation here.
+ */
+ switch (tm->op) {
+ case MOD_LOG_KEY_REMOVE_WHILE_FREEING:
+ BUG_ON(tm->slot < n);
+ case MOD_LOG_KEY_REMOVE_WHILE_MOVING:
+ case MOD_LOG_KEY_REMOVE:
+ btrfs_set_node_key(eb, &tm->key, tm->slot);
+ btrfs_set_node_blockptr(eb, tm->slot, tm->blockptr);
+ btrfs_set_node_ptr_generation(eb, tm->slot,
+ tm->generation);
+ n++;
+ break;
+ case MOD_LOG_KEY_REPLACE:
+ BUG_ON(tm->slot >= n);
+ btrfs_set_node_key(eb, &tm->key, tm->slot);
+ btrfs_set_node_blockptr(eb, tm->slot, tm->blockptr);
+ btrfs_set_node_ptr_generation(eb, tm->slot,
+ tm->generation);
+ break;
+ case MOD_LOG_KEY_ADD:
+ if (tm->slot != n - 1) {
+ o_dst = btrfs_node_key_ptr_offset(tm->slot);
+ o_src = btrfs_node_key_ptr_offset(tm->slot + 1);
+ memmove_extent_buffer(eb, o_dst, o_src, p_size);
+ }
+ n--;
+ break;
+ case MOD_LOG_MOVE_KEYS:
+ o_dst = btrfs_node_key_ptr_offset(tm->slot);
+ o_src = btrfs_node_key_ptr_offset(tm->move.dst_slot);
+ memmove_extent_buffer(eb, o_dst, o_src,
+ tm->move.nr_items * p_size);
+ break;
+ case MOD_LOG_ROOT_REPLACE:
+ /*
+ * this operation is special. for roots, this must be
+ * handled explicitly before rewinding.
+ * for non-roots, this operation may exist if the node
+ * was a root: root A -> child B; then A gets empty and
+ * B is promoted to the new root. in the mod log, we'll
+ * have a root-replace operation for B, a tree block
+ * that is no root. we simply ignore that operation.
+ */
+ break;
+ }
+ next = rb_next(&tm->node);
+ if (!next)
+ break;
+ tm = container_of(next, struct tree_mod_elem, node);
+ if (tm->index != first_tm->index)
+ break;
+ }
+ btrfs_set_header_nritems(eb, n);
+}
+
+static struct extent_buffer *
+tree_mod_log_rewind(struct btrfs_fs_info *fs_info, struct extent_buffer *eb,
+ u64 time_seq)
+{
+ struct extent_buffer *eb_rewin;
+ struct tree_mod_elem *tm;
+
+ if (!time_seq)
+ return eb;
+
+ if (btrfs_header_level(eb) == 0)
+ return eb;
+
+ tm = tree_mod_log_search(fs_info, eb->start, time_seq);
+ if (!tm)
+ return eb;
+
+ if (tm->op == MOD_LOG_KEY_REMOVE_WHILE_FREEING) {
+ BUG_ON(tm->slot != 0);
+ eb_rewin = alloc_dummy_extent_buffer(eb->start,
+ fs_info->tree_root->nodesize);
+ BUG_ON(!eb_rewin);
+ btrfs_set_header_bytenr(eb_rewin, eb->start);
+ btrfs_set_header_backref_rev(eb_rewin,
+ btrfs_header_backref_rev(eb));
+ btrfs_set_header_owner(eb_rewin, btrfs_header_owner(eb));
+ btrfs_set_header_level(eb_rewin, btrfs_header_level(eb));
+ } else {
+ eb_rewin = btrfs_clone_extent_buffer(eb);
+ BUG_ON(!eb_rewin);
+ }
+
+ extent_buffer_get(eb_rewin);
+ free_extent_buffer(eb);
+
+ __tree_mod_log_rewind(eb_rewin, time_seq, tm);
+
+ return eb_rewin;
+}
+
+static inline struct extent_buffer *
+get_old_root(struct btrfs_root *root, u64 time_seq)
+{
+ struct tree_mod_elem *tm;
+ struct extent_buffer *eb;
+ struct tree_mod_root *old_root;
+ u64 old_generation;
+
+ tm = __tree_mod_log_oldest_root(root->fs_info, root, time_seq);
+ if (!tm)
+ return root->node;
+
+ old_root = &tm->old_root;
+ old_generation = tm->generation;
+
+ tm = tree_mod_log_search(root->fs_info, old_root->logical, time_seq);
+ /*
+ * there was an item in the log when __tree_mod_log_oldest_root
+ * returned. this one must not go away, because the time_seq passed to
+ * us must be blocking its removal.
+ */
+ BUG_ON(!tm);
+
+ if (old_root->logical == root->node->start) {
+ /* there are logged operations for the current root */
+ eb = btrfs_clone_extent_buffer(root->node);
+ } else {
+ /* there's a root replace operation for the current root */
+ eb = alloc_dummy_extent_buffer(tm->index << PAGE_CACHE_SHIFT,
+ root->nodesize);
+ btrfs_set_header_bytenr(eb, eb->start);
+ btrfs_set_header_backref_rev(eb, BTRFS_MIXED_BACKREF_REV);
+ btrfs_set_header_owner(eb, root->root_key.objectid);
+ }
+ if (!eb)
+ return NULL;
+ btrfs_set_header_level(eb, old_root->level);
+ btrfs_set_header_generation(eb, old_generation);
+ __tree_mod_log_rewind(eb, time_seq, tm);
+
+ return eb;
+}
+
static inline int should_cow_block(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct extent_buffer *buf)
if (!cur)
return -EIO;
} else if (!uptodate) {
- btrfs_read_buffer(cur, gen);
+ err = btrfs_read_buffer(cur, gen);
+ if (err) {
+ free_extent_buffer(cur);
+ return err;
+ }
}
}
if (search_start == 0)
static int bin_search(struct extent_buffer *eb, struct btrfs_key *key,
int level, int *slot)
{
- if (level == 0) {
+ if (level == 0)
return generic_bin_search(eb,
offsetof(struct btrfs_leaf, items),
sizeof(struct btrfs_item),
key, btrfs_header_nritems(eb),
slot);
- } else {
+ else
return generic_bin_search(eb,
offsetof(struct btrfs_node, ptrs),
sizeof(struct btrfs_key_ptr),
key, btrfs_header_nritems(eb),
slot);
- }
- return -1;
}
int btrfs_bin_search(struct extent_buffer *eb, struct btrfs_key *key,
goto enospc;
}
+ tree_mod_log_set_root_pointer(root, child);
rcu_assign_pointer(root->node, child);
add_root_to_dirty_list(root);
free_extent_buffer(mid);
root_sub_used(root, mid->len);
- btrfs_free_tree_block(trans, root, mid, 0, 1, 0);
+ btrfs_free_tree_block(trans, root, mid, 0, 1);
/* once for the root ptr */
free_extent_buffer_stale(mid);
return 0;
if (btrfs_header_nritems(right) == 0) {
clean_tree_block(trans, root, right);
btrfs_tree_unlock(right);
- del_ptr(trans, root, path, level + 1, pslot + 1);
+ del_ptr(trans, root, path, level + 1, pslot + 1, 1);
root_sub_used(root, right->len);
- btrfs_free_tree_block(trans, root, right, 0, 1, 0);
+ btrfs_free_tree_block(trans, root, right, 0, 1);
free_extent_buffer_stale(right);
right = NULL;
} else {
struct btrfs_disk_key right_key;
btrfs_node_key(right, &right_key, 0);
+ tree_mod_log_set_node_key(root->fs_info, parent,
+ &right_key, pslot + 1, 0);
btrfs_set_node_key(parent, &right_key, pslot + 1);
btrfs_mark_buffer_dirty(parent);
}
if (btrfs_header_nritems(mid) == 0) {
clean_tree_block(trans, root, mid);
btrfs_tree_unlock(mid);
- del_ptr(trans, root, path, level + 1, pslot);
+ del_ptr(trans, root, path, level + 1, pslot, 1);
root_sub_used(root, mid->len);
- btrfs_free_tree_block(trans, root, mid, 0, 1, 0);
+ btrfs_free_tree_block(trans, root, mid, 0, 1);
free_extent_buffer_stale(mid);
mid = NULL;
} else {
/* update the parent key to reflect our changes */
struct btrfs_disk_key mid_key;
btrfs_node_key(mid, &mid_key, 0);
+ tree_mod_log_set_node_key(root->fs_info, parent, &mid_key,
+ pslot, 0);
btrfs_set_node_key(parent, &mid_key, pslot);
btrfs_mark_buffer_dirty(parent);
}
struct btrfs_disk_key disk_key;
orig_slot += left_nr;
btrfs_node_key(mid, &disk_key, 0);
+ tree_mod_log_set_node_key(root->fs_info, parent,
+ &disk_key, pslot, 0);
btrfs_set_node_key(parent, &disk_key, pslot);
btrfs_mark_buffer_dirty(parent);
if (btrfs_header_nritems(left) > orig_slot) {
struct btrfs_disk_key disk_key;
btrfs_node_key(right, &disk_key, 0);
+ tree_mod_log_set_node_key(root->fs_info, parent,
+ &disk_key, pslot + 1, 0);
btrfs_set_node_key(parent, &disk_key, pslot + 1);
btrfs_mark_buffer_dirty(parent);
read_block_for_search(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct btrfs_path *p,
struct extent_buffer **eb_ret, int level, int slot,
- struct btrfs_key *key)
+ struct btrfs_key *key, u64 time_seq)
{
u64 blocknr;
u64 gen;
}
err = read_block_for_search(trans, root, p,
- &b, level, slot, key);
+ &b, level, slot, key, 0);
if (err == -EAGAIN)
goto again;
if (err) {
return ret;
}
+/*
+ * Like btrfs_search_slot, this looks for a key in the given tree. It uses the
+ * current state of the tree together with the operations recorded in the tree
+ * modification log to search for the key in a previous version of this tree, as
+ * denoted by the time_seq parameter.
+ *
+ * Naturally, there is no support for insert, delete or cow operations.
+ *
+ * The resulting path and return value will be set up as if we called
+ * btrfs_search_slot at that point in time with ins_len and cow both set to 0.
+ */
+int btrfs_search_old_slot(struct btrfs_root *root, struct btrfs_key *key,
+ struct btrfs_path *p, u64 time_seq)
+{
+ struct extent_buffer *b;
+ int slot;
+ int ret;
+ int err;
+ int level;
+ int lowest_unlock = 1;
+ u8 lowest_level = 0;
+
+ lowest_level = p->lowest_level;
+ WARN_ON(p->nodes[0] != NULL);
+
+ if (p->search_commit_root) {
+ BUG_ON(time_seq);
+ return btrfs_search_slot(NULL, root, key, p, 0, 0);
+ }
+
+again:
+ b = get_old_root(root, time_seq);
+ extent_buffer_get(b);
+ level = btrfs_header_level(b);
+ btrfs_tree_read_lock(b);
+ p->locks[level] = BTRFS_READ_LOCK;
+
+ while (b) {
+ level = btrfs_header_level(b);
+ p->nodes[level] = b;
+ btrfs_clear_path_blocking(p, NULL, 0);
+
+ /*
+ * we have a lock on b and as long as we aren't changing
+ * the tree, there is no way to for the items in b to change.
+ * It is safe to drop the lock on our parent before we
+ * go through the expensive btree search on b.
+ */
+ btrfs_unlock_up_safe(p, level + 1);
+
+ ret = bin_search(b, key, level, &slot);
+
+ if (level != 0) {
+ int dec = 0;
+ if (ret && slot > 0) {
+ dec = 1;
+ slot -= 1;
+ }
+ p->slots[level] = slot;
+ unlock_up(p, level, lowest_unlock, 0, NULL);
+
+ if (level == lowest_level) {
+ if (dec)
+ p->slots[level]++;
+ goto done;
+ }
+
+ err = read_block_for_search(NULL, root, p, &b, level,
+ slot, key, time_seq);
+ if (err == -EAGAIN)
+ goto again;
+ if (err) {
+ ret = err;
+ goto done;
+ }
+
+ level = btrfs_header_level(b);
+ err = btrfs_try_tree_read_lock(b);
+ if (!err) {
+ btrfs_set_path_blocking(p);
+ btrfs_tree_read_lock(b);
+ btrfs_clear_path_blocking(p, b,
+ BTRFS_READ_LOCK);
+ }
+ p->locks[level] = BTRFS_READ_LOCK;
+ p->nodes[level] = b;
+ b = tree_mod_log_rewind(root->fs_info, b, time_seq);
+ if (b != p->nodes[level]) {
+ btrfs_tree_unlock_rw(p->nodes[level],
+ p->locks[level]);
+ p->locks[level] = 0;
+ p->nodes[level] = b;
+ }
+ } else {
+ p->slots[level] = slot;
+ unlock_up(p, level, lowest_unlock, 0, NULL);
+ goto done;
+ }
+ }
+ ret = 1;
+done:
+ if (!p->leave_spinning)
+ btrfs_set_path_blocking(p);
+ if (ret < 0)
+ btrfs_release_path(p);
+
+ return ret;
+}
+
/*
* adjust the pointers going up the tree, starting at level
* making sure the right key of each node is points to 'key'.
if (!path->nodes[i])
break;
t = path->nodes[i];
+ tree_mod_log_set_node_key(root->fs_info, t, key, tslot, 1);
btrfs_set_node_key(t, key, tslot);
btrfs_mark_buffer_dirty(path->nodes[i]);
if (tslot != 0)
} else
push_items = min(src_nritems - 8, push_items);
+ tree_mod_log_eb_copy(root->fs_info, dst, src, dst_nritems, 0,
+ push_items);
copy_extent_buffer(dst, src,
btrfs_node_key_ptr_offset(dst_nritems),
btrfs_node_key_ptr_offset(0),
push_items * sizeof(struct btrfs_key_ptr));
if (push_items < src_nritems) {
+ tree_mod_log_eb_move(root->fs_info, src, 0, push_items,
+ src_nritems - push_items);
memmove_extent_buffer(src, btrfs_node_key_ptr_offset(0),
btrfs_node_key_ptr_offset(push_items),
(src_nritems - push_items) *
if (max_push < push_items)
push_items = max_push;
+ tree_mod_log_eb_move(root->fs_info, dst, push_items, 0, dst_nritems);
memmove_extent_buffer(dst, btrfs_node_key_ptr_offset(push_items),
btrfs_node_key_ptr_offset(0),
(dst_nritems) *
sizeof(struct btrfs_key_ptr));
+ tree_mod_log_eb_copy(root->fs_info, dst, src, 0,
+ src_nritems - push_items, push_items);
copy_extent_buffer(dst, src,
btrfs_node_key_ptr_offset(0),
btrfs_node_key_ptr_offset(src_nritems - push_items),
c = btrfs_alloc_free_block(trans, root, root->nodesize, 0,
root->root_key.objectid, &lower_key,
- level, root->node->start, 0, 0);
+ level, root->node->start, 0);
if (IS_ERR(c))
return PTR_ERR(c);
btrfs_mark_buffer_dirty(c);
old = root->node;
+ tree_mod_log_set_root_pointer(root, c);
rcu_assign_pointer(root->node, c);
/* the super has an extra ref to root->node */
static void insert_ptr(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct btrfs_path *path,
struct btrfs_disk_key *key, u64 bytenr,
- int slot, int level)
+ int slot, int level, int tree_mod_log)
{
struct extent_buffer *lower;
int nritems;
+ int ret;
BUG_ON(!path->nodes[level]);
btrfs_assert_tree_locked(path->nodes[level]);
BUG_ON(slot > nritems);
BUG_ON(nritems == BTRFS_NODEPTRS_PER_BLOCK(root));
if (slot != nritems) {
+ if (tree_mod_log && level)
+ tree_mod_log_eb_move(root->fs_info, lower, slot + 1,
+ slot, nritems - slot);
memmove_extent_buffer(lower,
btrfs_node_key_ptr_offset(slot + 1),
btrfs_node_key_ptr_offset(slot),
(nritems - slot) * sizeof(struct btrfs_key_ptr));
}
+ if (tree_mod_log && level) {
+ ret = tree_mod_log_insert_key(root->fs_info, lower, slot,
+ MOD_LOG_KEY_ADD);
+ BUG_ON(ret < 0);
+ }
btrfs_set_node_key(lower, key, slot);
btrfs_set_node_blockptr(lower, slot, bytenr);
WARN_ON(trans->transid == 0);
split = btrfs_alloc_free_block(trans, root, root->nodesize, 0,
root->root_key.objectid,
- &disk_key, level, c->start, 0, 0);
+ &disk_key, level, c->start, 0);
if (IS_ERR(split))
return PTR_ERR(split);
(unsigned long)btrfs_header_chunk_tree_uuid(split),
BTRFS_UUID_SIZE);
-
+ tree_mod_log_eb_copy(root->fs_info, split, c, 0, mid, c_nritems - mid);
copy_extent_buffer(split, c,
btrfs_node_key_ptr_offset(0),
btrfs_node_key_ptr_offset(mid),
btrfs_mark_buffer_dirty(split);
insert_ptr(trans, root, path, &disk_key, split->start,
- path->slots[level + 1] + 1, level + 1);
+ path->slots[level + 1] + 1, level + 1, 1);
if (path->slots[level] >= mid) {
path->slots[level] -= mid;
btrfs_set_header_nritems(l, mid);
btrfs_item_key(right, &disk_key, 0);
insert_ptr(trans, root, path, &disk_key, right->start,
- path->slots[1] + 1, 1);
+ path->slots[1] + 1, 1, 0);
btrfs_mark_buffer_dirty(right);
btrfs_mark_buffer_dirty(l);
right = btrfs_alloc_free_block(trans, root, root->leafsize, 0,
root->root_key.objectid,
- &disk_key, 0, l->start, 0, 0);
+ &disk_key, 0, l->start, 0);
if (IS_ERR(right))
return PTR_ERR(right);
if (mid <= slot) {
btrfs_set_header_nritems(right, 0);
insert_ptr(trans, root, path, &disk_key, right->start,
- path->slots[1] + 1, 1);
+ path->slots[1] + 1, 1, 0);
btrfs_tree_unlock(path->nodes[0]);
free_extent_buffer(path->nodes[0]);
path->nodes[0] = right;
} else {
btrfs_set_header_nritems(right, 0);
insert_ptr(trans, root, path, &disk_key, right->start,
- path->slots[1], 1);
+ path->slots[1], 1, 0);
btrfs_tree_unlock(path->nodes[0]);
free_extent_buffer(path->nodes[0]);
path->nodes[0] = right;
* empty a node.
*/
static void del_ptr(struct btrfs_trans_handle *trans, struct btrfs_root *root,
- struct btrfs_path *path, int level, int slot)
+ struct btrfs_path *path, int level, int slot,
+ int tree_mod_log)
{
struct extent_buffer *parent = path->nodes[level];
u32 nritems;
+ int ret;
nritems = btrfs_header_nritems(parent);
if (slot != nritems - 1) {
+ if (tree_mod_log && level)
+ tree_mod_log_eb_move(root->fs_info, parent, slot,
+ slot + 1, nritems - slot - 1);
memmove_extent_buffer(parent,
btrfs_node_key_ptr_offset(slot),
btrfs_node_key_ptr_offset(slot + 1),
sizeof(struct btrfs_key_ptr) *
(nritems - slot - 1));
+ } else if (tree_mod_log && level) {
+ ret = tree_mod_log_insert_key(root->fs_info, parent, slot,
+ MOD_LOG_KEY_REMOVE);
+ BUG_ON(ret < 0);
}
+
nritems--;
btrfs_set_header_nritems(parent, nritems);
if (nritems == 0 && parent == root->node) {
struct extent_buffer *leaf)
{
WARN_ON(btrfs_header_generation(leaf) != trans->transid);
- del_ptr(trans, root, path, 1, path->slots[1]);
+ del_ptr(trans, root, path, 1, path->slots[1], 1);
/*
* btrfs_free_extent is expensive, we want to make sure we
root_sub_used(root, leaf->len);
extent_buffer_get(leaf);
- btrfs_free_tree_block(trans, root, leaf, 0, 1, 0);
+ btrfs_free_tree_block(trans, root, leaf, 0, 1);
free_extent_buffer_stale(leaf);
}
/*
next = c;
next_rw_lock = path->locks[level];
ret = read_block_for_search(NULL, root, path, &next, level,
- slot, &key);
+ slot, &key, 0);
if (ret == -EAGAIN)
goto again;
break;
ret = read_block_for_search(NULL, root, path, &next, level,
- 0, &key);
+ 0, &key, 0);
if (ret == -EAGAIN)
goto again;
#define BTRFS_FT_XATTR 8
#define BTRFS_FT_MAX 9
+/* ioprio of readahead is set to idle */
+#define BTRFS_IOPRIO_READA (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_IDLE, 0))
+
/*
* The key defines the order in the tree, and so it also defines (optimal)
* block layout.
u8 csum;
} __attribute__ ((__packed__));
+struct btrfs_dev_stats_item {
+ /*
+ * grow this item struct at the end for future enhancements and keep
+ * the existing values unchanged
+ */
+ __le64 values[BTRFS_DEV_STAT_VALUES_MAX];
+} __attribute__ ((__packed__));
+
/* different types of block groups (and chunks) */
#define BTRFS_BLOCK_GROUP_DATA (1ULL << 0)
#define BTRFS_BLOCK_GROUP_SYSTEM (1ULL << 1)
spinlock_t delayed_iput_lock;
struct list_head delayed_iputs;
+ /* this protects tree_mod_seq_list */
+ spinlock_t tree_mod_seq_lock;
+ atomic_t tree_mod_seq;
+ struct list_head tree_mod_seq_list;
+
+ /* this protects tree_mod_log */
+ rwlock_t tree_mod_log_lock;
+ struct rb_root tree_mod_log;
+
atomic_t nr_async_submits;
atomic_t async_submit_draining;
atomic_t nr_async_bios;
struct list_head root_list;
spinlock_t orphan_lock;
- struct list_head orphan_list;
+ atomic_t orphan_inodes;
struct btrfs_block_rsv *orphan_block_rsv;
int orphan_item_inserted;
int orphan_cleanup_state;
#define BTRFS_BALANCE_ITEM_KEY 248
+/*
+ * Persistantly stores the io stats in the device tree.
+ * One key for all stats, (0, BTRFS_DEV_STATS_KEY, devid).
+ */
+#define BTRFS_DEV_STATS_KEY 249
+
/*
* string items are for debugging. They just store a short string of
* data in the FS
return btrfs_item_size(eb, e) - offset;
}
+/* btrfs_dev_stats_item */
+static inline u64 btrfs_dev_stats_value(struct extent_buffer *eb,
+ struct btrfs_dev_stats_item *ptr,
+ int index)
+{
+ u64 val;
+
+ read_extent_buffer(eb, &val,
+ offsetof(struct btrfs_dev_stats_item, values) +
+ ((unsigned long)ptr) + (index * sizeof(u64)),
+ sizeof(val));
+ return val;
+}
+
+static inline void btrfs_set_dev_stats_value(struct extent_buffer *eb,
+ struct btrfs_dev_stats_item *ptr,
+ int index, u64 val)
+{
+ write_extent_buffer(eb, &val,
+ offsetof(struct btrfs_dev_stats_item, values) +
+ ((unsigned long)ptr) + (index * sizeof(u64)),
+ sizeof(val));
+}
+
static inline struct btrfs_fs_info *btrfs_sb(struct super_block *sb)
{
return sb->s_fs_info;
struct btrfs_root *root, u32 blocksize,
u64 parent, u64 root_objectid,
struct btrfs_disk_key *key, int level,
- u64 hint, u64 empty_size, int for_cow);
+ u64 hint, u64 empty_size);
void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct extent_buffer *buf,
- u64 parent, int last_ref, int for_cow);
+ u64 parent, int last_ref);
struct extent_buffer *btrfs_init_new_buffer(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
u64 bytenr, u32 blocksize,
int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root
*root, struct btrfs_key *key, struct btrfs_path *p, int
ins_len, int cow);
+int btrfs_search_old_slot(struct btrfs_root *root, struct btrfs_key *key,
+ struct btrfs_path *p, u64 time_seq);
int btrfs_realloc_node(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct extent_buffer *parent,
int start_slot, int cache_only, u64 *last_ret,
void btrfs_evict_inode(struct inode *inode);
int btrfs_write_inode(struct inode *inode, struct writeback_control *wbc);
int btrfs_dirty_inode(struct inode *inode);
-int btrfs_update_time(struct file *file);
struct inode *btrfs_alloc_inode(struct super_block *sb);
void btrfs_destroy_inode(struct inode *inode);
int btrfs_drop_inode(struct inode *inode);
int btree_readahead_hook(struct btrfs_root *root, struct extent_buffer *eb,
u64 start, int err);
+/* delayed seq elem */
+struct seq_list {
+ struct list_head list;
+ u64 seq;
+ u32 flags;
+};
+
+void btrfs_get_tree_mod_seq(struct btrfs_fs_info *fs_info,
+ struct seq_list *elem);
+void btrfs_put_tree_mod_seq(struct btrfs_fs_info *fs_info,
+ struct seq_list *elem);
+
+static inline int is_fstree(u64 rootid)
+{
+ if (rootid == BTRFS_FS_TREE_OBJECTID ||
+ (s64)rootid >= (s64)BTRFS_FIRST_FREE_OBJECTID)
+ return 1;
+ return 0;
+}
#endif
return ret;
} else if (src_rsv == &root->fs_info->delalloc_block_rsv) {
spin_lock(&BTRFS_I(inode)->lock);
- if (BTRFS_I(inode)->delalloc_meta_reserved) {
- BTRFS_I(inode)->delalloc_meta_reserved = 0;
+ if (test_and_clear_bit(BTRFS_INODE_DELALLOC_META_RESERVED,
+ &BTRFS_I(inode)->runtime_flags)) {
spin_unlock(&BTRFS_I(inode)->lock);
release = true;
goto migrate;
btrfs_set_stack_inode_nbytes(inode_item, inode_get_bytes(inode));
btrfs_set_stack_inode_generation(inode_item,
BTRFS_I(inode)->generation);
- btrfs_set_stack_inode_sequence(inode_item, BTRFS_I(inode)->sequence);
+ btrfs_set_stack_inode_sequence(inode_item, inode->i_version);
btrfs_set_stack_inode_transid(inode_item, trans->transid);
btrfs_set_stack_inode_rdev(inode_item, inode->i_rdev);
btrfs_set_stack_inode_flags(inode_item, BTRFS_I(inode)->flags);
set_nlink(inode, btrfs_stack_inode_nlink(inode_item));
inode_set_bytes(inode, btrfs_stack_inode_nbytes(inode_item));
BTRFS_I(inode)->generation = btrfs_stack_inode_generation(inode_item);
- BTRFS_I(inode)->sequence = btrfs_stack_inode_sequence(inode_item);
+ inode->i_version = btrfs_stack_inode_sequence(inode_item);
inode->i_rdev = 0;
*rdev = btrfs_stack_inode_rdev(inode_item);
BTRFS_I(inode)->flags = btrfs_stack_inode_flags(inode_item);
ref->is_head = 0;
ref->in_tree = 1;
- if (need_ref_seq(for_cow, ref_root))
+ if (is_fstree(ref_root))
seq = inc_delayed_seq(delayed_refs);
ref->seq = seq;
ref->is_head = 0;
ref->in_tree = 1;
- if (need_ref_seq(for_cow, ref_root))
+ if (is_fstree(ref_root))
seq = inc_delayed_seq(delayed_refs);
ref->seq = seq;
add_delayed_tree_ref(fs_info, trans, &ref->node, bytenr,
num_bytes, parent, ref_root, level, action,
for_cow);
- if (!need_ref_seq(for_cow, ref_root) &&
+ if (!is_fstree(ref_root) &&
waitqueue_active(&delayed_refs->seq_wait))
wake_up(&delayed_refs->seq_wait);
spin_unlock(&delayed_refs->lock);
+
return 0;
}
add_delayed_data_ref(fs_info, trans, &ref->node, bytenr,
num_bytes, parent, ref_root, owner, offset,
action, for_cow);
- if (!need_ref_seq(for_cow, ref_root) &&
+ if (!is_fstree(ref_root) &&
waitqueue_active(&delayed_refs->seq_wait))
wake_up(&delayed_refs->seq_wait);
spin_unlock(&delayed_refs->lock);
+
return 0;
}
int btrfs_find_ref_cluster(struct btrfs_trans_handle *trans,
struct list_head *cluster, u64 search_start);
-struct seq_list {
- struct list_head list;
- u64 seq;
-};
-
static inline u64 inc_delayed_seq(struct btrfs_delayed_ref_root *delayed_refs)
{
assert_spin_locked(&delayed_refs->lock);
int btrfs_check_delayed_seq(struct btrfs_delayed_ref_root *delayed_refs,
u64 seq);
-/*
- * delayed refs with a ref_seq > 0 must be held back during backref walking.
- * this only applies to items in one of the fs-trees. for_cow items never need
- * to be held back, so they won't get a ref_seq number.
- */
-static inline int need_ref_seq(int for_cow, u64 rootid)
-{
- if (for_cow)
- return 0;
-
- if (rootid == BTRFS_FS_TREE_OBJECTID)
- return 1;
-
- if ((s64)rootid >= (s64)BTRFS_FIRST_FREE_OBJECTID)
- return 1;
-
- return 0;
-}
-
/*
* a node might live in a head or a regular ref, this lets you
* test for the proper type to use.
root->orphan_block_rsv = NULL;
INIT_LIST_HEAD(&root->dirty_list);
- INIT_LIST_HEAD(&root->orphan_list);
INIT_LIST_HEAD(&root->root_list);
spin_lock_init(&root->orphan_lock);
spin_lock_init(&root->inode_lock);
atomic_set(&root->log_commit[0], 0);
atomic_set(&root->log_commit[1], 0);
atomic_set(&root->log_writers, 0);
+ atomic_set(&root->orphan_inodes, 0);
root->log_batch = 0;
root->log_transid = 0;
root->last_log_commit = 0;
leaf = btrfs_alloc_free_block(trans, root, root->leafsize, 0,
BTRFS_TREE_LOG_OBJECTID, NULL,
- 0, 0, 0, 0);
+ 0, 0, 0);
if (IS_ERR(leaf)) {
kfree(root);
return ERR_CAST(leaf);
spin_lock_init(&fs_info->delayed_iput_lock);
spin_lock_init(&fs_info->defrag_inodes_lock);
spin_lock_init(&fs_info->free_chunk_lock);
+ spin_lock_init(&fs_info->tree_mod_seq_lock);
+ rwlock_init(&fs_info->tree_mod_log_lock);
mutex_init(&fs_info->reloc_mutex);
init_completion(&fs_info->kobj_unregister);
INIT_LIST_HEAD(&fs_info->dirty_cowonly_roots);
INIT_LIST_HEAD(&fs_info->space_info);
+ INIT_LIST_HEAD(&fs_info->tree_mod_seq_list);
btrfs_mapping_init(&fs_info->mapping_tree);
btrfs_init_block_rsv(&fs_info->global_block_rsv);
btrfs_init_block_rsv(&fs_info->delalloc_block_rsv);
atomic_set(&fs_info->async_submit_draining, 0);
atomic_set(&fs_info->nr_async_bios, 0);
atomic_set(&fs_info->defrag_running, 0);
+ atomic_set(&fs_info->tree_mod_seq, 0);
fs_info->sb = sb;
fs_info->max_inline = 8192 * 1024;
fs_info->metadata_ratio = 0;
fs_info->defrag_inodes = RB_ROOT;
fs_info->trans_no_join = 0;
fs_info->free_chunk_space = 0;
+ fs_info->tree_mod_log = RB_ROOT;
/* readahead state */
INIT_RADIX_TREE(&fs_info->reada_tree, GFP_NOFS & ~__GFP_WAIT);
BTRFS_I(fs_info->btree_inode)->root = tree_root;
memset(&BTRFS_I(fs_info->btree_inode)->location, 0,
sizeof(struct btrfs_key));
- BTRFS_I(fs_info->btree_inode)->dummy_inode = 1;
+ set_bit(BTRFS_INODE_DUMMY,
+ &BTRFS_I(fs_info->btree_inode)->runtime_flags);
insert_inode_hash(fs_info->btree_inode);
spin_lock_init(&fs_info->block_group_cache_lock);
fs_info->generation = generation;
fs_info->last_trans_committed = generation;
+ ret = btrfs_init_dev_stats(fs_info);
+ if (ret) {
+ printk(KERN_ERR "btrfs: failed to init dev_stats: %d\n",
+ ret);
+ goto fail_block_groups;
+ }
+
ret = btrfs_init_space_info(fs_info);
if (ret) {
printk(KERN_ERR "Failed to initial space info: %d\n", ret);
static void btrfs_end_buffer_write_sync(struct buffer_head *bh, int uptodate)
{
- char b[BDEVNAME_SIZE];
-
if (uptodate) {
set_buffer_uptodate(bh);
} else {
+ struct btrfs_device *device = (struct btrfs_device *)
+ bh->b_private;
+
printk_ratelimited(KERN_WARNING "lost page write due to "
- "I/O error on %s\n",
- bdevname(bh->b_bdev, b));
+ "I/O error on %s\n", device->name);
/* note, we dont' set_buffer_write_io_error because we have
* our own ways of dealing with the IO errors
*/
clear_buffer_uptodate(bh);
+ btrfs_dev_stat_inc_and_print(device, BTRFS_DEV_STAT_WRITE_ERRS);
}
unlock_buffer(bh);
put_bh(bh);
set_buffer_uptodate(bh);
lock_buffer(bh);
bh->b_end_io = btrfs_end_buffer_write_sync;
+ bh->b_private = device;
}
/*
}
if (!bio_flagged(bio, BIO_UPTODATE)) {
ret = -EIO;
+ if (!bio_flagged(bio, BIO_EOPNOTSUPP))
+ btrfs_dev_stat_inc_and_print(device,
+ BTRFS_DEV_STAT_FLUSH_ERRS);
}
/* drop the reference from the wait == 0 run */
return ret;
}
-/* Kill all outstanding I/O */
-void btrfs_abort_devices(struct btrfs_root *root)
-{
- struct list_head *head;
- struct btrfs_device *dev;
- mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
- head = &root->fs_info->fs_devices->devices;
- list_for_each_entry_rcu(dev, head, dev_list) {
- blk_abort_queue(dev->bdev->bd_disk->queue);
- }
- mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
-}
-
void btrfs_free_fs_root(struct btrfs_fs_info *fs_info, struct btrfs_root *root)
{
spin_lock(&fs_info->fs_roots_radix_lock);
return 0;
}
-static int btree_writepage_io_failed_hook(struct bio *bio, struct page *page,
- u64 start, u64 end,
- struct extent_state *state)
-{
- struct super_block *sb = page->mapping->host->i_sb;
- struct btrfs_fs_info *fs_info = btrfs_sb(sb);
- btrfs_error(fs_info, -EIO,
- "Error occured while writing out btree at %llu", start);
- return -EIO;
-}
-
static struct extent_io_ops btree_extent_io_ops = {
.write_cache_pages_lock_hook = btree_lock_page_hook,
.readpage_end_io_hook = btree_readpage_end_io_hook,
.submit_bio_hook = btree_submit_bio_hook,
/* note we're sharing with inode.c for the merge bio hook */
.merge_bio_hook = btrfs_merge_bio_hook,
- .writepage_io_failed_hook = btree_writepage_io_failed_hook,
};
int btrfs_cleanup_transaction(struct btrfs_root *root);
void btrfs_cleanup_one_transaction(struct btrfs_transaction *trans,
struct btrfs_root *root);
-void btrfs_abort_devices(struct btrfs_root *root);
#ifdef CONFIG_DEBUG_LOCK_ALLOC
void btrfs_init_lockdep(void);
parent_root_objectid) / 4)
#define BTRFS_FID_SIZE_CONNECTABLE_ROOT (sizeof(struct btrfs_fid) / 4)
-static int btrfs_encode_fh(struct dentry *dentry, u32 *fh, int *max_len,
- int connectable)
+static int btrfs_encode_fh(struct inode *inode, u32 *fh, int *max_len,
+ struct inode *parent)
{
struct btrfs_fid *fid = (struct btrfs_fid *)fh;
- struct inode *inode = dentry->d_inode;
int len = *max_len;
int type;
- if (connectable && (len < BTRFS_FID_SIZE_CONNECTABLE)) {
+ if (parent && (len < BTRFS_FID_SIZE_CONNECTABLE)) {
*max_len = BTRFS_FID_SIZE_CONNECTABLE;
return 255;
} else if (len < BTRFS_FID_SIZE_NON_CONNECTABLE) {
fid->root_objectid = BTRFS_I(inode)->root->objectid;
fid->gen = inode->i_generation;
- if (connectable && !S_ISDIR(inode->i_mode)) {
- struct inode *parent;
+ if (parent) {
u64 parent_root_id;
- spin_lock(&dentry->d_lock);
-
- parent = dentry->d_parent->d_inode;
fid->parent_objectid = BTRFS_I(parent)->location.objectid;
fid->parent_gen = parent->i_generation;
parent_root_id = BTRFS_I(parent)->root->objectid;
- spin_unlock(&dentry->d_lock);
-
if (parent_root_id != fid->root_objectid) {
fid->parent_root_objectid = parent_root_id;
len = BTRFS_FID_SIZE_CONNECTABLE_ROOT;
space_info->chunk_alloc = 0;
spin_unlock(&space_info->lock);
out:
- mutex_unlock(&extent_root->fs_info->chunk_mutex);
+ mutex_unlock(&fs_info->chunk_mutex);
return ret;
}
BTRFS_I(inode)->outstanding_extents--;
if (BTRFS_I(inode)->outstanding_extents == 0 &&
- BTRFS_I(inode)->delalloc_meta_reserved) {
+ test_and_clear_bit(BTRFS_INODE_DELALLOC_META_RESERVED,
+ &BTRFS_I(inode)->runtime_flags))
drop_inode_space = 1;
- BTRFS_I(inode)->delalloc_meta_reserved = 0;
- }
/*
* If we have more or the same amount of outsanding extents than we have
* Add an item to reserve for updating the inode when we complete the
* delalloc io.
*/
- if (!BTRFS_I(inode)->delalloc_meta_reserved) {
+ if (!test_bit(BTRFS_INODE_DELALLOC_META_RESERVED,
+ &BTRFS_I(inode)->runtime_flags)) {
nr_extents++;
extra_reserve = 1;
}
spin_lock(&BTRFS_I(inode)->lock);
if (extra_reserve) {
- BTRFS_I(inode)->delalloc_meta_reserved = 1;
+ set_bit(BTRFS_INODE_DELALLOC_META_RESERVED,
+ &BTRFS_I(inode)->runtime_flags);
nr_extents--;
}
BTRFS_I(inode)->reserved_extents += nr_extents;
void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct extent_buffer *buf,
- u64 parent, int last_ref, int for_cow)
+ u64 parent, int last_ref)
{
struct btrfs_block_group_cache *cache = NULL;
int ret;
buf->start, buf->len,
parent, root->root_key.objectid,
btrfs_header_level(buf),
- BTRFS_DROP_DELAYED_REF, NULL, for_cow);
+ BTRFS_DROP_DELAYED_REF, NULL, 0);
BUG_ON(ret); /* -ENOMEM */
}
struct btrfs_root *root, u32 blocksize,
u64 parent, u64 root_objectid,
struct btrfs_disk_key *key, int level,
- u64 hint, u64 empty_size, int for_cow)
+ u64 hint, u64 empty_size)
{
struct btrfs_key ins;
struct btrfs_block_rsv *block_rsv;
ins.objectid,
ins.offset, parent, root_objectid,
level, BTRFS_ADD_DELAYED_EXTENT,
- extent_op, for_cow);
+ extent_op, 0);
BUG_ON(ret); /* -ENOMEM */
}
return buf;
btrfs_header_owner(path->nodes[level + 1]));
}
- btrfs_free_tree_block(trans, root, eb, parent, wc->refs[level] == 1, 0);
+ btrfs_free_tree_block(trans, root, eb, parent, wc->refs[level] == 1);
out:
wc->refs[level] = 0;
wc->flags[level] = 0;
return parent;
}
- entry = rb_entry(node, struct tree_entry, rb_node);
rb_link_node(node, parent, p);
rb_insert_color(node, root);
return NULL;
/*
* utility function to clear some bits in an extent state struct.
- * it will optionally wake up any one waiting on this state (wake == 1)
+ * it will optionally wake up any one waiting on this state (wake == 1).
*
* If no bits are set on the state struct after clearing things, the
* struct is freed and removed from the tree
if (err)
goto out;
if (state->end <= end) {
- clear_state_bit(tree, state, &bits, wake);
- if (last_end == (u64)-1)
- goto out;
- start = last_end + 1;
+ state = clear_state_bit(tree, state, &bits, wake);
+ goto next;
}
goto search_again;
}
* Just lock what we found and keep going
*/
if (state->start == start && state->end <= end) {
- struct rb_node *next_node;
if (state->state & exclusive_bits) {
*failed_start = state->start;
err = -EEXIST;
}
set_state_bits(tree, state, &bits);
-
cache_state(state, cached_state);
merge_state(tree, state);
if (last_end == (u64)-1)
goto out;
-
start = last_end + 1;
- next_node = rb_next(&state->rb_node);
- if (next_node && start < end && prealloc && !need_resched()) {
- state = rb_entry(next_node, struct extent_state,
- rb_node);
- if (state->start == start)
- goto hit_next;
- }
+ state = next_state(state);
+ if (start < end && state && state->start == start &&
+ !need_resched())
+ goto hit_next;
goto search_again;
}
if (last_end == (u64)-1)
goto out;
start = last_end + 1;
+ state = next_state(state);
+ if (start < end && state && state->start == start &&
+ !need_resched())
+ goto hit_next;
}
goto search_again;
}
* Just lock what we found and keep going
*/
if (state->start == start && state->end <= end) {
- struct rb_node *next_node;
-
set_state_bits(tree, state, &bits);
- clear_state_bit(tree, state, &clear_bits, 0);
+ state = clear_state_bit(tree, state, &clear_bits, 0);
if (last_end == (u64)-1)
goto out;
-
start = last_end + 1;
- next_node = rb_next(&state->rb_node);
- if (next_node && start < end && prealloc && !need_resched()) {
- state = rb_entry(next_node, struct extent_state,
- rb_node);
- if (state->start == start)
- goto hit_next;
- }
+ if (start < end && state && state->start == start &&
+ !need_resched())
+ goto hit_next;
goto search_again;
}
goto out;
if (state->end <= end) {
set_state_bits(tree, state, &bits);
- clear_state_bit(tree, state, &clear_bits, 0);
+ state = clear_state_bit(tree, state, &clear_bits, 0);
if (last_end == (u64)-1)
goto out;
start = last_end + 1;
+ if (start < end && state && state->start == start &&
+ !need_resched())
+ goto hit_next;
}
goto search_again;
}
cached_state, mask);
}
-static int clear_extent_uptodate(struct extent_io_tree *tree, u64 start,
- u64 end, struct extent_state **cached_state,
- gfp_t mask)
+int clear_extent_uptodate(struct extent_io_tree *tree, u64 start, u64 end,
+ struct extent_state **cached_state, gfp_t mask)
{
return clear_extent_bit(tree, start, end, EXTENT_UPTODATE, 0, 0,
cached_state, mask);
* returned if we find something, and *start_ret and *end_ret are
* set to reflect the state struct that was found.
*
- * If nothing was found, 1 is returned, < 0 on error
+ * If nothing was found, 1 is returned. If found something, return 0.
*/
int find_first_extent_bit(struct extent_io_tree *tree, u64 start,
u64 *start_ret, u64 *end_ret, int bits)
if (!test_bit(BIO_UPTODATE, &bio->bi_flags)) {
/* try to remap that extent elsewhere? */
bio_put(bio);
+ btrfs_dev_stat_inc_and_print(dev, BTRFS_DEV_STAT_WRITE_ERRS);
return -EIO;
}
uptodate = 0;
}
- if (!uptodate && tree->ops &&
- tree->ops->writepage_io_failed_hook) {
- ret = tree->ops->writepage_io_failed_hook(NULL, page,
- start, end, NULL);
- /* Writeback already completed */
- if (ret == 0)
- return 1;
- }
-
if (!uptodate) {
- clear_extent_uptodate(tree, start, end, NULL, GFP_NOFS);
ClearPageUptodate(page);
SetPageError(page);
}
if (uptodate && tree->ops && tree->ops->readpage_end_io_hook) {
ret = tree->ops->readpage_end_io_hook(page, start, end,
state, mirror);
- if (ret)
+ if (ret) {
+ /* no IO indicated but software detected errors
+ * in the block, either checksum errors or
+ * issues with the contents */
+ struct btrfs_root *root =
+ BTRFS_I(page->mapping->host)->root;
+ struct btrfs_device *device;
+
uptodate = 0;
- else
+ device = btrfs_find_device_for_logical(
+ root, start, mirror);
+ if (device)
+ btrfs_dev_stat_inc_and_print(device,
+ BTRFS_DEV_STAT_CORRUPTION_ERRS);
+ } else {
clean_io_failure(start, page);
+ }
}
if (!uptodate && tree->ops && tree->ops->readpage_io_failed_hook) {
u64 offset = eb->start;
unsigned long i, num_pages;
int rw = (epd->sync_io ? WRITE_SYNC : WRITE);
- int ret;
+ int ret = 0;
clear_bit(EXTENT_BUFFER_IOERR, &eb->bflags);
num_pages = num_extent_pages(eb->start, eb->len);
eb->start = start;
eb->len = len;
eb->tree = tree;
+ eb->bflags = 0;
rwlock_init(&eb->lock);
atomic_set(&eb->write_locks, 0);
atomic_set(&eb->read_locks, 0);
return eb;
}
+struct extent_buffer *btrfs_clone_extent_buffer(struct extent_buffer *src)
+{
+ unsigned long i;
+ struct page *p;
+ struct extent_buffer *new;
+ unsigned long num_pages = num_extent_pages(src->start, src->len);
+
+ new = __alloc_extent_buffer(NULL, src->start, src->len, GFP_ATOMIC);
+ if (new == NULL)
+ return NULL;
+
+ for (i = 0; i < num_pages; i++) {
+ p = alloc_page(GFP_ATOMIC);
+ BUG_ON(!p);
+ attach_extent_buffer_page(new, p);
+ WARN_ON(PageDirty(p));
+ SetPageUptodate(p);
+ new->pages[i] = p;
+ }
+
+ copy_extent_buffer(new, src, 0, 0, src->len);
+ set_bit(EXTENT_BUFFER_UPTODATE, &new->bflags);
+ set_bit(EXTENT_BUFFER_DUMMY, &new->bflags);
+
+ return new;
+}
+
+struct extent_buffer *alloc_dummy_extent_buffer(u64 start, unsigned long len)
+{
+ struct extent_buffer *eb;
+ unsigned long num_pages = num_extent_pages(0, len);
+ unsigned long i;
+
+ eb = __alloc_extent_buffer(NULL, start, len, GFP_ATOMIC);
+ if (!eb)
+ return NULL;
+
+ for (i = 0; i < num_pages; i++) {
+ eb->pages[i] = alloc_page(GFP_ATOMIC);
+ if (!eb->pages[i])
+ goto err;
+ }
+ set_extent_buffer_uptodate(eb);
+ btrfs_set_header_nritems(eb, 0);
+ set_bit(EXTENT_BUFFER_DUMMY, &eb->bflags);
+
+ return eb;
+err:
+ for (i--; i > 0; i--)
+ __free_page(eb->pages[i]);
+ __free_extent_buffer(eb);
+ return NULL;
+}
+
static int extent_buffer_under_io(struct extent_buffer *eb)
{
return (atomic_read(&eb->io_pages) ||
unsigned long start_idx)
{
unsigned long index;
+ unsigned long num_pages;
struct page *page;
+ int mapped = !test_bit(EXTENT_BUFFER_DUMMY, &eb->bflags);
BUG_ON(extent_buffer_under_io(eb));
- index = num_extent_pages(eb->start, eb->len);
+ num_pages = num_extent_pages(eb->start, eb->len);
+ index = start_idx + num_pages;
if (start_idx >= index)
return;
do {
index--;
page = extent_buffer_page(eb, index);
- if (page) {
+ if (page && mapped) {
spin_lock(&page->mapping->private_lock);
/*
* We do this since we'll remove the pages after we've
}
spin_unlock(&page->mapping->private_lock);
+ }
+ if (page) {
/* One for when we alloced the page */
page_cache_release(page);
}
{
WARN_ON(atomic_read(&eb->refs) == 0);
if (atomic_dec_and_test(&eb->refs)) {
- struct extent_io_tree *tree = eb->tree;
+ if (test_bit(EXTENT_BUFFER_DUMMY, &eb->bflags)) {
+ spin_unlock(&eb->refs_lock);
+ } else {
+ struct extent_io_tree *tree = eb->tree;
- spin_unlock(&eb->refs_lock);
+ spin_unlock(&eb->refs_lock);
- spin_lock(&tree->buffer_lock);
- radix_tree_delete(&tree->buffer,
- eb->start >> PAGE_CACHE_SHIFT);
- spin_unlock(&tree->buffer_lock);
+ spin_lock(&tree->buffer_lock);
+ radix_tree_delete(&tree->buffer,
+ eb->start >> PAGE_CACHE_SHIFT);
+ spin_unlock(&tree->buffer_lock);
+ }
/* Should be safe to release our pages at this point */
btrfs_release_extent_buffer_page(eb, 0);
return;
spin_lock(&eb->refs_lock);
+ if (atomic_read(&eb->refs) == 2 &&
+ test_bit(EXTENT_BUFFER_DUMMY, &eb->bflags))
+ atomic_dec(&eb->refs);
+
if (atomic_read(&eb->refs) == 2 &&
test_bit(EXTENT_BUFFER_STALE, &eb->bflags) &&
!extent_buffer_under_io(eb) &&
#define EXTENT_BUFFER_STALE 6
#define EXTENT_BUFFER_WRITEBACK 7
#define EXTENT_BUFFER_IOERR 8
+#define EXTENT_BUFFER_DUMMY 9
/* these are flags for extent_clear_unlock_delalloc */
#define EXTENT_CLEAR_UNLOCK_PAGE 0x1
unsigned long bio_flags);
int (*readpage_io_hook)(struct page *page, u64 start, u64 end);
int (*readpage_io_failed_hook)(struct page *page, int failed_mirror);
- int (*writepage_io_failed_hook)(struct bio *bio, struct page *page,
- u64 start, u64 end,
- struct extent_state *state);
int (*readpage_end_io_hook)(struct page *page, u64 start, u64 end,
struct extent_state *state, int mirror);
int (*writepage_end_io_hook)(struct page *page, u64 start, u64 end,
struct extent_state **cached_state, gfp_t mask);
int set_extent_uptodate(struct extent_io_tree *tree, u64 start, u64 end,
struct extent_state **cached_state, gfp_t mask);
+int clear_extent_uptodate(struct extent_io_tree *tree, u64 start, u64 end,
+ struct extent_state **cached_state, gfp_t mask);
int set_extent_new(struct extent_io_tree *tree, u64 start, u64 end,
gfp_t mask);
int set_extent_dirty(struct extent_io_tree *tree, u64 start, u64 end,
struct extent_buffer *alloc_extent_buffer(struct extent_io_tree *tree,
u64 start, unsigned long len);
+struct extent_buffer *alloc_dummy_extent_buffer(u64 start, unsigned long len);
+struct extent_buffer *btrfs_clone_extent_buffer(struct extent_buffer *src);
struct extent_buffer *find_extent_buffer(struct extent_io_tree *tree,
u64 start, unsigned long len);
void free_extent_buffer(struct extent_buffer *eb);
int cycled;
};
+static int __compare_inode_defrag(struct inode_defrag *defrag1,
+ struct inode_defrag *defrag2)
+{
+ if (defrag1->root > defrag2->root)
+ return 1;
+ else if (defrag1->root < defrag2->root)
+ return -1;
+ else if (defrag1->ino > defrag2->ino)
+ return 1;
+ else if (defrag1->ino < defrag2->ino)
+ return -1;
+ else
+ return 0;
+}
+
/* pop a record for an inode into the defrag tree. The lock
* must be held already
*
struct inode_defrag *entry;
struct rb_node **p;
struct rb_node *parent = NULL;
+ int ret;
p = &root->fs_info->defrag_inodes.rb_node;
while (*p) {
parent = *p;
entry = rb_entry(parent, struct inode_defrag, rb_node);
- if (defrag->ino < entry->ino)
+ ret = __compare_inode_defrag(defrag, entry);
+ if (ret < 0)
p = &parent->rb_left;
- else if (defrag->ino > entry->ino)
+ else if (ret > 0)
p = &parent->rb_right;
else {
/* if we're reinserting an entry for
goto exists;
}
}
- BTRFS_I(inode)->in_defrag = 1;
+ set_bit(BTRFS_INODE_IN_DEFRAG, &BTRFS_I(inode)->runtime_flags);
rb_link_node(&defrag->rb_node, parent, p);
rb_insert_color(&defrag->rb_node, &root->fs_info->defrag_inodes);
return;
if (btrfs_fs_closing(root->fs_info))
return 0;
- if (BTRFS_I(inode)->in_defrag)
+ if (test_bit(BTRFS_INODE_IN_DEFRAG, &BTRFS_I(inode)->runtime_flags))
return 0;
if (trans)
defrag->root = root->root_key.objectid;
spin_lock(&root->fs_info->defrag_inodes_lock);
- if (!BTRFS_I(inode)->in_defrag)
+ if (!test_bit(BTRFS_INODE_IN_DEFRAG, &BTRFS_I(inode)->runtime_flags))
__btrfs_add_inode_defrag(inode, defrag);
else
kfree(defrag);
/*
* must be called with the defrag_inodes lock held
*/
-struct inode_defrag *btrfs_find_defrag_inode(struct btrfs_fs_info *info, u64 ino,
+struct inode_defrag *btrfs_find_defrag_inode(struct btrfs_fs_info *info,
+ u64 root, u64 ino,
struct rb_node **next)
{
struct inode_defrag *entry = NULL;
+ struct inode_defrag tmp;
struct rb_node *p;
struct rb_node *parent = NULL;
+ int ret;
+
+ tmp.ino = ino;
+ tmp.root = root;
p = info->defrag_inodes.rb_node;
while (p) {
parent = p;
entry = rb_entry(parent, struct inode_defrag, rb_node);
- if (ino < entry->ino)
+ ret = __compare_inode_defrag(&tmp, entry);
+ if (ret < 0)
p = parent->rb_left;
- else if (ino > entry->ino)
+ else if (ret > 0)
p = parent->rb_right;
else
return entry;
}
if (next) {
- while (parent && ino > entry->ino) {
+ while (parent && __compare_inode_defrag(&tmp, entry) > 0) {
parent = rb_next(parent);
entry = rb_entry(parent, struct inode_defrag, rb_node);
}
struct btrfs_key key;
struct btrfs_ioctl_defrag_range_args range;
u64 first_ino = 0;
+ u64 root_objectid = 0;
int num_defrag;
int defrag_batch = 1024;
n = NULL;
/* find an inode to defrag */
- defrag = btrfs_find_defrag_inode(fs_info, first_ino, &n);
+ defrag = btrfs_find_defrag_inode(fs_info, root_objectid,
+ first_ino, &n);
if (!defrag) {
- if (n)
- defrag = rb_entry(n, struct inode_defrag, rb_node);
- else if (first_ino) {
+ if (n) {
+ defrag = rb_entry(n, struct inode_defrag,
+ rb_node);
+ } else if (root_objectid || first_ino) {
+ root_objectid = 0;
first_ino = 0;
continue;
} else {
/* remove it from the rbtree */
first_ino = defrag->ino + 1;
+ root_objectid = defrag->root;
rb_erase(&defrag->rb_node, &fs_info->defrag_inodes);
if (btrfs_fs_closing(fs_info))
goto next;
/* do a chunk of defrag */
- BTRFS_I(inode)->in_defrag = 0;
+ clear_bit(BTRFS_INODE_IN_DEFRAG, &BTRFS_I(inode)->runtime_flags);
range.start = defrag->last_offset;
num_defrag = btrfs_defrag_file(inode, NULL, &range, defrag->transid,
defrag_batch);
goto out;
}
- err = btrfs_update_time(file);
+ err = file_update_time(file);
if (err) {
mutex_unlock(&inode->i_mutex);
goto out;
}
- BTRFS_I(inode)->sequence++;
start_pos = round_down(pos, root->sectorsize);
if (start_pos > i_size_read(inode)) {
* flush down new bytes that may have been written if the
* application were using truncate to replace a file in place.
*/
- if (BTRFS_I(inode)->ordered_data_close) {
- BTRFS_I(inode)->ordered_data_close = 0;
+ if (test_and_clear_bit(BTRFS_INODE_ORDERED_DATA_CLOSE,
+ &BTRFS_I(inode)->runtime_flags)) {
btrfs_add_ordered_operation(NULL, BTRFS_I(inode)->root, inode);
if (inode->i_size > BTRFS_ORDERED_OPERATIONS_FLUSH_LIMIT)
filemap_flush(inode->i_mapping);
trace_btrfs_sync_file(file, datasync);
- ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
- if (ret)
- return ret;
mutex_lock(&inode->i_mutex);
- /* we wait first, since the writeback may change the inode */
+ /*
+ * we wait first, since the writeback may change the inode, also wait
+ * ordered range does a filemape_write_and_wait_range which is why we
+ * don't do it above like other file systems.
+ */
root->log_batch++;
- btrfs_wait_ordered_range(inode, 0, (u64)-1);
+ btrfs_wait_ordered_range(inode, start, end);
root->log_batch++;
/*
* syncing
*/
smp_mb();
- if (BTRFS_I(inode)->last_trans <=
+ if (btrfs_inode_in_log(inode, root->fs_info->generation) ||
+ BTRFS_I(inode)->last_trans <=
root->fs_info->last_trans_committed) {
BTRFS_I(inode)->last_trans = 0;
mutex_unlock(&inode->i_mutex);
static int link_free_space(struct btrfs_free_space_ctl *ctl,
struct btrfs_free_space *info);
+static void unlink_free_space(struct btrfs_free_space_ctl *ctl,
+ struct btrfs_free_space *info);
static struct inode *__lookup_free_space_inode(struct btrfs_root *root,
struct btrfs_path *path,
return ERR_PTR(-ENOENT);
}
- inode->i_mapping->flags &= ~__GFP_FS;
+ mapping_set_gfp_mask(inode->i_mapping,
+ mapping_gfp_mask(inode->i_mapping) & ~__GFP_FS);
return inode;
}
static void io_ctl_set_generation(struct io_ctl *io_ctl, u64 generation)
{
- u64 *val;
+ __le64 *val;
io_ctl_map_page(io_ctl, 1);
static int io_ctl_check_generation(struct io_ctl *io_ctl, u64 generation)
{
- u64 *gen;
+ __le64 *gen;
/*
* Skip the crc area. If we don't check crcs then we just have a 64bit
return 0;
}
+/*
+ * Since we attach pinned extents after the fact we can have contiguous sections
+ * of free space that are split up in entries. This poses a problem with the
+ * tree logging stuff since it could have allocated across what appears to be 2
+ * entries since we would have merged the entries when adding the pinned extents
+ * back to the free space cache. So run through the space cache that we just
+ * loaded and merge contiguous entries. This will make the log replay stuff not
+ * blow up and it will make for nicer allocator behavior.
+ */
+static void merge_space_tree(struct btrfs_free_space_ctl *ctl)
+{
+ struct btrfs_free_space *e, *prev = NULL;
+ struct rb_node *n;
+
+again:
+ spin_lock(&ctl->tree_lock);
+ for (n = rb_first(&ctl->free_space_offset); n; n = rb_next(n)) {
+ e = rb_entry(n, struct btrfs_free_space, offset_index);
+ if (!prev)
+ goto next;
+ if (e->bitmap || prev->bitmap)
+ goto next;
+ if (prev->offset + prev->bytes == e->offset) {
+ unlink_free_space(ctl, prev);
+ unlink_free_space(ctl, e);
+ prev->bytes += e->bytes;
+ kmem_cache_free(btrfs_free_space_cachep, e);
+ link_free_space(ctl, prev);
+ prev = NULL;
+ spin_unlock(&ctl->tree_lock);
+ goto again;
+ }
+next:
+ prev = e;
+ }
+ spin_unlock(&ctl->tree_lock);
+}
+
int __load_free_space_cache(struct btrfs_root *root, struct inode *inode,
struct btrfs_free_space_ctl *ctl,
struct btrfs_path *path, u64 offset)
}
io_ctl_drop_pages(&io_ctl);
+ merge_space_tree(ctl);
ret = 1;
out:
io_ctl_free(&io_ctl);
goto out;
- ret = filemap_write_and_wait(inode->i_mapping);
- if (ret)
- goto out;
+ btrfs_wait_ordered_range(inode, 0, (u64)-1);
key.objectid = BTRFS_FREE_SPACE_OBJECTID;
key.offset = offset;
static int btrfs_setsize(struct inode *inode, loff_t newsize);
static int btrfs_truncate(struct inode *inode);
-static int btrfs_finish_ordered_io(struct inode *inode, u64 start, u64 end);
+static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent);
static noinline int cow_file_range(struct inode *inode,
struct page *locked_page,
u64 start, u64 end, int *page_started,
ret = insert_inline_extent(trans, root, inode, start,
inline_len, compressed_size,
compress_type, compressed_pages);
- if (ret) {
+ if (ret && ret != -ENOSPC) {
btrfs_abort_transaction(trans, root, ret);
return ret;
+ } else if (ret == -ENOSPC) {
+ return 1;
}
+
btrfs_delalloc_release_metadata(inode, end + 1 - start);
btrfs_drop_extent_cache(inode, start, aligned_end - 1, 0);
return 0;
if (btrfs_is_free_space_inode(root, inode))
metadata = 2;
- ret = btrfs_bio_wq_end_io(root->fs_info, bio, metadata);
- if (ret)
- return ret;
-
if (!(rw & REQ_WRITE)) {
+ ret = btrfs_bio_wq_end_io(root->fs_info, bio, metadata);
+ if (ret)
+ return ret;
+
if (bio_flags & EXTENT_BIO_COMPRESSED) {
return btrfs_submit_compressed_read(inode, bio,
mirror_num, bio_flags);
* an ordered extent if the range of bytes in the file it covers are
* fully written.
*/
-static int btrfs_finish_ordered_io(struct inode *inode, u64 start, u64 end)
+static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent)
{
+ struct inode *inode = ordered_extent->inode;
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans = NULL;
- struct btrfs_ordered_extent *ordered_extent = NULL;
struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
struct extent_state *cached_state = NULL;
int compress_type = 0;
int ret;
bool nolock;
- ret = btrfs_dec_test_ordered_pending(inode, &ordered_extent, start,
- end - start + 1);
- if (!ret)
- return 0;
- BUG_ON(!ordered_extent); /* Logic error */
-
nolock = btrfs_is_free_space_inode(root, inode);
+ if (test_bit(BTRFS_ORDERED_IOERR, &ordered_extent->flags)) {
+ ret = -EIO;
+ goto out;
+ }
+
if (test_bit(BTRFS_ORDERED_NOCOW, &ordered_extent->flags)) {
BUG_ON(!list_empty(&ordered_extent->list)); /* Logic error */
ret = btrfs_ordered_update_i_size(inode, 0, ordered_extent);
ordered_extent->file_offset,
ordered_extent->len);
}
- unlock_extent_cached(io_tree, ordered_extent->file_offset,
- ordered_extent->file_offset +
- ordered_extent->len - 1, &cached_state, GFP_NOFS);
+
if (ret < 0) {
btrfs_abort_transaction(trans, root, ret);
- goto out;
+ goto out_unlock;
}
add_pending_csums(trans, inode, ordered_extent->file_offset,
ret = btrfs_update_inode_fallback(trans, root, inode);
if (ret) { /* -ENOMEM or corruption */
btrfs_abort_transaction(trans, root, ret);
- goto out;
+ goto out_unlock;
}
}
ret = 0;
+out_unlock:
+ unlock_extent_cached(io_tree, ordered_extent->file_offset,
+ ordered_extent->file_offset +
+ ordered_extent->len - 1, &cached_state, GFP_NOFS);
out:
if (root != root->fs_info->tree_root)
btrfs_delalloc_release_metadata(inode, ordered_extent->len);
btrfs_end_transaction(trans, root);
}
+ if (ret)
+ clear_extent_uptodate(io_tree, ordered_extent->file_offset,
+ ordered_extent->file_offset +
+ ordered_extent->len - 1, NULL, GFP_NOFS);
+
+ /*
+ * This needs to be dont to make sure anybody waiting knows we are done
+ * upating everything for this ordered extent.
+ */
+ btrfs_remove_ordered_extent(inode, ordered_extent);
+
/* once for us */
btrfs_put_ordered_extent(ordered_extent);
/* once for the tree */
btrfs_put_ordered_extent(ordered_extent);
- return 0;
-out_unlock:
- unlock_extent_cached(io_tree, ordered_extent->file_offset,
- ordered_extent->file_offset +
- ordered_extent->len - 1, &cached_state, GFP_NOFS);
- goto out;
+ return ret;
+}
+
+static void finish_ordered_fn(struct btrfs_work *work)
+{
+ struct btrfs_ordered_extent *ordered_extent;
+ ordered_extent = container_of(work, struct btrfs_ordered_extent, work);
+ btrfs_finish_ordered_io(ordered_extent);
}
static int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end,
struct extent_state *state, int uptodate)
{
+ struct inode *inode = page->mapping->host;
+ struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_ordered_extent *ordered_extent = NULL;
+ struct btrfs_workers *workers;
+
trace_btrfs_writepage_end_io_hook(page, start, end, uptodate);
ClearPagePrivate2(page);
- return btrfs_finish_ordered_io(page->mapping->host, start, end);
+ if (!btrfs_dec_test_ordered_pending(inode, &ordered_extent, start,
+ end - start + 1, uptodate))
+ return 0;
+
+ ordered_extent->work.func = finish_ordered_fn;
+ ordered_extent->work.flags = 0;
+
+ if (btrfs_is_free_space_inode(root, inode))
+ workers = &root->fs_info->endio_freespace_worker;
+ else
+ workers = &root->fs_info->endio_write_workers;
+ btrfs_queue_worker(workers, &ordered_extent->work);
+
+ return 0;
}
/*
struct btrfs_block_rsv *block_rsv;
int ret;
- if (!list_empty(&root->orphan_list) ||
+ if (atomic_read(&root->orphan_inodes) ||
root->orphan_cleanup_state != ORPHAN_CLEANUP_DONE)
return;
spin_lock(&root->orphan_lock);
- if (!list_empty(&root->orphan_list)) {
+ if (atomic_read(&root->orphan_inodes)) {
spin_unlock(&root->orphan_lock);
return;
}
block_rsv = NULL;
}
- if (list_empty(&BTRFS_I(inode)->i_orphan)) {
- list_add(&BTRFS_I(inode)->i_orphan, &root->orphan_list);
+ if (!test_and_set_bit(BTRFS_INODE_HAS_ORPHAN_ITEM,
+ &BTRFS_I(inode)->runtime_flags)) {
#if 0
/*
* For proper ENOSPC handling, we should do orphan
insert = 1;
#endif
insert = 1;
+ atomic_dec(&root->orphan_inodes);
}
- if (!BTRFS_I(inode)->orphan_meta_reserved) {
- BTRFS_I(inode)->orphan_meta_reserved = 1;
+ if (!test_and_set_bit(BTRFS_INODE_ORPHAN_META_RESERVED,
+ &BTRFS_I(inode)->runtime_flags))
reserve = 1;
- }
spin_unlock(&root->orphan_lock);
/* grab metadata reservation from transaction handle */
if (insert >= 1) {
ret = btrfs_insert_orphan_item(trans, root, btrfs_ino(inode));
if (ret && ret != -EEXIST) {
+ clear_bit(BTRFS_INODE_HAS_ORPHAN_ITEM,
+ &BTRFS_I(inode)->runtime_flags);
btrfs_abort_transaction(trans, root, ret);
return ret;
}
int ret = 0;
spin_lock(&root->orphan_lock);
- if (!list_empty(&BTRFS_I(inode)->i_orphan)) {
- list_del_init(&BTRFS_I(inode)->i_orphan);
+ if (test_and_clear_bit(BTRFS_INODE_HAS_ORPHAN_ITEM,
+ &BTRFS_I(inode)->runtime_flags))
delete_item = 1;
- }
- if (BTRFS_I(inode)->orphan_meta_reserved) {
- BTRFS_I(inode)->orphan_meta_reserved = 0;
+ if (test_and_clear_bit(BTRFS_INODE_ORPHAN_META_RESERVED,
+ &BTRFS_I(inode)->runtime_flags))
release_rsv = 1;
- }
spin_unlock(&root->orphan_lock);
if (trans && delete_item) {
BUG_ON(ret); /* -ENOMEM or corruption (JDM: Recheck) */
}
- if (release_rsv)
+ if (release_rsv) {
btrfs_orphan_release_metadata(inode);
+ atomic_dec(&root->orphan_inodes);
+ }
return 0;
}
ret = PTR_ERR(trans);
goto out;
}
+ printk(KERN_ERR "auto deleting %Lu\n",
+ found_key.objectid);
ret = btrfs_del_orphan_item(trans, root,
found_key.objectid);
BUG_ON(ret); /* -ENOMEM or corruption (JDM: Recheck) */
* add this inode to the orphan list so btrfs_orphan_del does
* the proper thing when we hit it
*/
- spin_lock(&root->orphan_lock);
- list_add(&BTRFS_I(inode)->i_orphan, &root->orphan_list);
- spin_unlock(&root->orphan_lock);
+ set_bit(BTRFS_INODE_HAS_ORPHAN_ITEM,
+ &BTRFS_I(inode)->runtime_flags);
/* if we have links, this was a truncate, lets do that */
if (inode->i_nlink) {
inode_set_bytes(inode, btrfs_inode_nbytes(leaf, inode_item));
BTRFS_I(inode)->generation = btrfs_inode_generation(leaf, inode_item);
- BTRFS_I(inode)->sequence = btrfs_inode_sequence(leaf, inode_item);
+ inode->i_version = btrfs_inode_sequence(leaf, inode_item);
inode->i_generation = BTRFS_I(inode)->generation;
inode->i_rdev = 0;
rdev = btrfs_inode_rdev(leaf, inode_item);
btrfs_set_inode_nbytes(leaf, item, inode_get_bytes(inode));
btrfs_set_inode_generation(leaf, item, BTRFS_I(inode)->generation);
- btrfs_set_inode_sequence(leaf, item, BTRFS_I(inode)->sequence);
+ btrfs_set_inode_sequence(leaf, item, inode->i_version);
btrfs_set_inode_transid(leaf, item, trans->transid);
btrfs_set_inode_rdev(leaf, item, inode->i_rdev);
btrfs_set_inode_flags(leaf, item, BTRFS_I(inode)->flags);
goto out;
btrfs_i_size_write(dir, dir->i_size - name_len * 2);
+ inode_inc_iversion(inode);
+ inode_inc_iversion(dir);
inode->i_ctime = dir->i_mtime = dir->i_ctime = CURRENT_TIME;
btrfs_update_inode(trans, root, dir);
out:
}
btrfs_i_size_write(dir, dir->i_size - name_len * 2);
+ inode_inc_iversion(dir);
dir->i_mtime = dir->i_ctime = CURRENT_TIME;
ret = btrfs_update_inode(trans, root, dir);
if (ret)
* any new writes get down to disk quickly.
*/
if (newsize == 0)
- BTRFS_I(inode)->ordered_data_close = 1;
+ set_bit(BTRFS_INODE_ORDERED_DATA_CLOSE,
+ &BTRFS_I(inode)->runtime_flags);
/* we don't support swapfiles, so vmtruncate shouldn't fail */
truncate_setsize(inode, newsize);
if (attr->ia_valid) {
setattr_copy(inode, attr);
+ inode_inc_iversion(inode);
err = btrfs_dirty_inode(inode);
if (!err && attr->ia_valid & ATTR_MODE)
btrfs_wait_ordered_range(inode, 0, (u64)-1);
if (root->fs_info->log_root_recovering) {
- BUG_ON(!list_empty(&BTRFS_I(inode)->i_orphan));
+ BUG_ON(!test_bit(BTRFS_INODE_HAS_ORPHAN_ITEM,
+ &BTRFS_I(inode)->runtime_flags));
goto no_delete;
}
BTRFS_I(inode)->root = root;
memcpy(&BTRFS_I(inode)->location, key, sizeof(*key));
- BTRFS_I(inode)->dummy_inode = 1;
+ set_bit(BTRFS_INODE_DUMMY, &BTRFS_I(inode)->runtime_flags);
inode->i_ino = BTRFS_EMPTY_SUBVOL_DIR_OBJECTID;
inode->i_op = &btrfs_dir_ro_inode_operations;
int ret = 0;
bool nolock = false;
- if (BTRFS_I(inode)->dummy_inode)
+ if (test_bit(BTRFS_INODE_DUMMY, &BTRFS_I(inode)->runtime_flags))
return 0;
if (btrfs_fs_closing(root->fs_info) && btrfs_is_free_space_inode(root, inode))
struct btrfs_trans_handle *trans;
int ret;
- if (BTRFS_I(inode)->dummy_inode)
+ if (test_bit(BTRFS_INODE_DUMMY, &BTRFS_I(inode)->runtime_flags))
return 0;
trans = btrfs_join_transaction(root);
* This is a copy of file_update_time. We need this so we can return error on
* ENOSPC for updating the inode in the case of file write and mmap writes.
*/
-int btrfs_update_time(struct file *file)
+static int btrfs_update_time(struct inode *inode, struct timespec *now,
+ int flags)
{
- struct inode *inode = file->f_path.dentry->d_inode;
- struct timespec now;
- int ret;
- enum { S_MTIME = 1, S_CTIME = 2, S_VERSION = 4 } sync_it = 0;
-
- /* First try to exhaust all avenues to not sync */
- if (IS_NOCMTIME(inode))
- return 0;
-
- now = current_fs_time(inode->i_sb);
- if (!timespec_equal(&inode->i_mtime, &now))
- sync_it = S_MTIME;
-
- if (!timespec_equal(&inode->i_ctime, &now))
- sync_it |= S_CTIME;
-
- if (IS_I_VERSION(inode))
- sync_it |= S_VERSION;
-
- if (!sync_it)
- return 0;
-
- /* Finally allowed to write? Takes lock. */
- if (mnt_want_write_file(file))
- return 0;
-
- /* Only change inode inside the lock region */
- if (sync_it & S_VERSION)
+ if (flags & S_VERSION)
inode_inc_iversion(inode);
- if (sync_it & S_CTIME)
- inode->i_ctime = now;
- if (sync_it & S_MTIME)
- inode->i_mtime = now;
- ret = btrfs_dirty_inode(inode);
- if (!ret)
- mark_inode_dirty_sync(inode);
- mnt_drop_write(file->f_path.mnt);
- return ret;
+ if (flags & S_CTIME)
+ inode->i_ctime = *now;
+ if (flags & S_MTIME)
+ inode->i_mtime = *now;
+ if (flags & S_ATIME)
+ inode->i_atime = *now;
+ return btrfs_dirty_inode(inode);
}
/*
btrfs_i_size_write(parent_inode, parent_inode->i_size +
name_len * 2);
+ inode_inc_iversion(parent_inode);
parent_inode->i_mtime = parent_inode->i_ctime = CURRENT_TIME;
ret = btrfs_update_inode(trans, root, parent_inode);
if (ret)
}
btrfs_inc_nlink(inode);
+ inode_inc_iversion(inode);
inode->i_ctime = CURRENT_TIME;
ihold(inode);
struct btrfs_dio_private *dip = bio->bi_private;
struct inode *inode = dip->inode;
struct btrfs_root *root = BTRFS_I(inode)->root;
- struct btrfs_trans_handle *trans;
struct btrfs_ordered_extent *ordered = NULL;
- struct extent_state *cached_state = NULL;
u64 ordered_offset = dip->logical_offset;
u64 ordered_bytes = dip->bytes;
int ret;
again:
ret = btrfs_dec_test_first_ordered_pending(inode, &ordered,
&ordered_offset,
- ordered_bytes);
+ ordered_bytes, !err);
if (!ret)
goto out_test;
- BUG_ON(!ordered);
-
- trans = btrfs_join_transaction(root);
- if (IS_ERR(trans)) {
- err = -ENOMEM;
- goto out;
- }
- trans->block_rsv = &root->fs_info->delalloc_block_rsv;
-
- if (test_bit(BTRFS_ORDERED_NOCOW, &ordered->flags)) {
- ret = btrfs_ordered_update_i_size(inode, 0, ordered);
- if (!ret)
- err = btrfs_update_inode_fallback(trans, root, inode);
- goto out;
- }
-
- lock_extent_bits(&BTRFS_I(inode)->io_tree, ordered->file_offset,
- ordered->file_offset + ordered->len - 1, 0,
- &cached_state);
-
- if (test_bit(BTRFS_ORDERED_PREALLOC, &ordered->flags)) {
- ret = btrfs_mark_extent_written(trans, inode,
- ordered->file_offset,
- ordered->file_offset +
- ordered->len);
- if (ret) {
- err = ret;
- goto out_unlock;
- }
- } else {
- ret = insert_reserved_file_extent(trans, inode,
- ordered->file_offset,
- ordered->start,
- ordered->disk_len,
- ordered->len,
- ordered->len,
- 0, 0, 0,
- BTRFS_FILE_EXTENT_REG);
- unpin_extent_cache(&BTRFS_I(inode)->extent_tree,
- ordered->file_offset, ordered->len);
- if (ret) {
- err = ret;
- WARN_ON(1);
- goto out_unlock;
- }
- }
-
- add_pending_csums(trans, inode, ordered->file_offset, &ordered->list);
- ret = btrfs_ordered_update_i_size(inode, 0, ordered);
- if (!ret || !test_bit(BTRFS_ORDERED_PREALLOC, &ordered->flags))
- btrfs_update_inode_fallback(trans, root, inode);
- ret = 0;
-out_unlock:
- unlock_extent_cached(&BTRFS_I(inode)->io_tree, ordered->file_offset,
- ordered->file_offset + ordered->len - 1,
- &cached_state, GFP_NOFS);
-out:
- btrfs_delalloc_release_metadata(inode, ordered->len);
- btrfs_end_transaction(trans, root);
- ordered_offset = ordered->file_offset + ordered->len;
- btrfs_put_ordered_extent(ordered);
- btrfs_put_ordered_extent(ordered);
-
+ ordered->work.func = finish_ordered_fn;
+ ordered->work.flags = 0;
+ btrfs_queue_worker(&root->fs_info->endio_write_workers,
+ &ordered->work);
out_test:
/*
* our bio might span multiple ordered extents. If we haven't
if (ordered_offset < dip->logical_offset + dip->bytes) {
ordered_bytes = dip->logical_offset + dip->bytes -
ordered_offset;
+ ordered = NULL;
goto again;
}
out_done:
bio->bi_private = dip->private;
- kfree(dip->csums);
kfree(dip);
/* If we had an error make sure to clear the uptodate flag */
int ret;
bio_get(bio);
- ret = btrfs_bio_wq_end_io(root->fs_info, bio, 0);
- if (ret)
- goto err;
+
+ if (!write) {
+ ret = btrfs_bio_wq_end_io(root->fs_info, bio, 0);
+ if (ret)
+ goto err;
+ }
if (skip_sum)
goto map;
static void btrfs_invalidatepage(struct page *page, unsigned long offset)
{
+ struct inode *inode = page->mapping->host;
struct extent_io_tree *tree;
struct btrfs_ordered_extent *ordered;
struct extent_state *cached_state = NULL;
u64 page_start = page_offset(page);
u64 page_end = page_start + PAGE_CACHE_SIZE - 1;
-
/*
* we have the page locked, so new writeback can't start,
* and the dirty bit won't be cleared while we are here.
*/
wait_on_page_writeback(page);
- tree = &BTRFS_I(page->mapping->host)->io_tree;
+ tree = &BTRFS_I(inode)->io_tree;
if (offset) {
btrfs_releasepage(page, GFP_NOFS);
return;
}
lock_extent_bits(tree, page_start, page_end, 0, &cached_state);
- ordered = btrfs_lookup_ordered_extent(page->mapping->host,
+ ordered = btrfs_lookup_ordered_extent(inode,
page_offset(page));
if (ordered) {
/*
* whoever cleared the private bit is responsible
* for the finish_ordered_io
*/
- if (TestClearPagePrivate2(page)) {
- btrfs_finish_ordered_io(page->mapping->host,
- page_start, page_end);
+ if (TestClearPagePrivate2(page) &&
+ btrfs_dec_test_ordered_pending(inode, &ordered, page_start,
+ PAGE_CACHE_SIZE, 1)) {
+ btrfs_finish_ordered_io(ordered);
}
btrfs_put_ordered_extent(ordered);
cached_state = NULL;
ret = btrfs_delalloc_reserve_space(inode, PAGE_CACHE_SIZE);
if (!ret) {
- ret = btrfs_update_time(vma->vm_file);
+ ret = file_update_time(vma->vm_file);
reserved = 1;
}
if (ret) {
* using truncate to replace the contents of the file will
* end up with a zero length file after a crash.
*/
- if (inode->i_size == 0 && BTRFS_I(inode)->ordered_data_close)
+ if (inode->i_size == 0 && test_bit(BTRFS_INODE_ORDERED_DATA_CLOSE,
+ &BTRFS_I(inode)->runtime_flags))
btrfs_add_ordered_operation(trans, root, inode);
while (1) {
ei->root = NULL;
ei->space_info = NULL;
ei->generation = 0;
- ei->sequence = 0;
ei->last_trans = 0;
ei->last_sub_trans = 0;
ei->logged_trans = 0;
ei->outstanding_extents = 0;
ei->reserved_extents = 0;
- ei->ordered_data_close = 0;
- ei->orphan_meta_reserved = 0;
- ei->dummy_inode = 0;
- ei->in_defrag = 0;
- ei->delalloc_meta_reserved = 0;
+ ei->runtime_flags = 0;
ei->force_compress = BTRFS_COMPRESS_NONE;
ei->delayed_node = NULL;
mutex_init(&ei->log_mutex);
mutex_init(&ei->delalloc_mutex);
btrfs_ordered_inode_tree_init(&ei->ordered_tree);
- INIT_LIST_HEAD(&ei->i_orphan);
INIT_LIST_HEAD(&ei->delalloc_inodes);
INIT_LIST_HEAD(&ei->ordered_operations);
RB_CLEAR_NODE(&ei->rb_node);
spin_unlock(&root->fs_info->ordered_extent_lock);
}
- spin_lock(&root->orphan_lock);
- if (!list_empty(&BTRFS_I(inode)->i_orphan)) {
+ if (test_bit(BTRFS_INODE_HAS_ORPHAN_ITEM,
+ &BTRFS_I(inode)->runtime_flags)) {
printk(KERN_INFO "BTRFS: inode %llu still on the orphan list\n",
(unsigned long long)btrfs_ino(inode));
- list_del_init(&BTRFS_I(inode)->i_orphan);
+ atomic_dec(&root->orphan_inodes);
}
- spin_unlock(&root->orphan_lock);
while (1) {
ordered = btrfs_lookup_first_ordered_extent(inode, (u64)-1);
if (new_inode && new_inode->i_size && S_ISREG(old_inode->i_mode))
btrfs_add_ordered_operation(trans, root, old_inode);
+ inode_inc_iversion(old_dir);
+ inode_inc_iversion(new_dir);
+ inode_inc_iversion(old_inode);
old_dir->i_ctime = old_dir->i_mtime = ctime;
new_dir->i_ctime = new_dir->i_mtime = ctime;
old_inode->i_ctime = ctime;
}
if (new_inode) {
+ inode_inc_iversion(new_inode);
new_inode->i_ctime = CURRENT_TIME;
if (unlikely(btrfs_ino(new_inode) ==
BTRFS_EMPTY_SUBVOL_DIR_OBJECTID)) {
cur_offset += ins.offset;
*alloc_hint = ins.objectid + ins.offset;
+ inode_inc_iversion(inode);
inode->i_ctime = CURRENT_TIME;
BTRFS_I(inode)->flags |= BTRFS_INODE_PREALLOC;
if (!(mode & FALLOC_FL_KEEP_SIZE) &&
.permission = btrfs_permission,
.fiemap = btrfs_fiemap,
.get_acl = btrfs_get_acl,
+ .update_time = btrfs_update_time,
};
static const struct inode_operations btrfs_special_inode_operations = {
.getattr = btrfs_getattr,
.listxattr = btrfs_listxattr,
.removexattr = btrfs_removexattr,
.get_acl = btrfs_get_acl,
+ .update_time = btrfs_update_time,
};
static const struct inode_operations btrfs_symlink_inode_operations = {
.readlink = generic_readlink,
.listxattr = btrfs_listxattr,
.removexattr = btrfs_removexattr,
.get_acl = btrfs_get_acl,
+ .update_time = btrfs_update_time,
};
const struct dentry_operations btrfs_dentry_operations = {
}
btrfs_update_iflags(inode);
+ inode_inc_iversion(inode);
inode->i_ctime = CURRENT_TIME;
ret = btrfs_update_inode(trans, root, inode);
return PTR_ERR(trans);
leaf = btrfs_alloc_free_block(trans, root, root->leafsize,
- 0, objectid, NULL, 0, 0, 0, 0);
+ 0, objectid, NULL, 0, 0, 0);
if (IS_ERR(leaf)) {
ret = PTR_ERR(leaf);
goto fail;
di_args->bytes_used = dev->bytes_used;
di_args->total_bytes = dev->total_bytes;
memcpy(di_args->uuid, dev->uuid, sizeof(di_args->uuid));
- if (dev->name)
+ if (dev->name) {
strncpy(di_args->path, dev->name, sizeof(di_args->path));
- else
+ di_args->path[sizeof(di_args->path) - 1] = 0;
+ } else {
di_args->path[0] = '\0';
+ }
out:
if (ret == 0 && copy_to_user(arg, di_args, sizeof(*di_args)))
btrfs_mark_buffer_dirty(leaf);
btrfs_release_path(path);
+ inode_inc_iversion(inode);
inode->i_mtime = inode->i_ctime = CURRENT_TIME;
/*
up_read(&info->groups_sem);
}
- user_dest = (struct btrfs_ioctl_space_info *)
+ user_dest = (struct btrfs_ioctl_space_info __user *)
(arg + sizeof(struct btrfs_ioctl_space_args));
if (copy_to_user(user_dest, dest_orig, alloc_size))
return ret;
}
+static long btrfs_ioctl_get_dev_stats(struct btrfs_root *root,
+ void __user *arg, int reset_after_read)
+{
+ struct btrfs_ioctl_get_dev_stats *sa;
+ int ret;
+
+ if (reset_after_read && !capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ sa = memdup_user(arg, sizeof(*sa));
+ if (IS_ERR(sa))
+ return PTR_ERR(sa);
+
+ ret = btrfs_get_dev_stats(root, sa, reset_after_read);
+
+ if (copy_to_user(arg, sa, sizeof(*sa)))
+ ret = -EFAULT;
+
+ kfree(sa);
+ return ret;
+}
+
static long btrfs_ioctl_ino_to_path(struct btrfs_root *root, void __user *arg)
{
int ret = 0;
}
}
-static long btrfs_ioctl_balance(struct btrfs_root *root, void __user *arg)
+static long btrfs_ioctl_balance(struct file *file, void __user *arg)
{
+ struct btrfs_root *root = BTRFS_I(fdentry(file)->d_inode)->root;
struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_ioctl_balance_args *bargs;
struct btrfs_balance_control *bctl;
if (fs_info->sb->s_flags & MS_RDONLY)
return -EROFS;
+ ret = mnt_want_write(file->f_path.mnt);
+ if (ret)
+ return ret;
+
mutex_lock(&fs_info->volume_mutex);
mutex_lock(&fs_info->balance_mutex);
out:
mutex_unlock(&fs_info->balance_mutex);
mutex_unlock(&fs_info->volume_mutex);
+ mnt_drop_write(file->f_path.mnt);
return ret;
}
case BTRFS_IOC_DEV_INFO:
return btrfs_ioctl_dev_info(root, argp);
case BTRFS_IOC_BALANCE:
- return btrfs_ioctl_balance(root, NULL);
+ return btrfs_ioctl_balance(file, NULL);
case BTRFS_IOC_CLONE:
return btrfs_ioctl_clone(file, arg, 0, 0, 0);
case BTRFS_IOC_CLONE_RANGE:
case BTRFS_IOC_SCRUB_PROGRESS:
return btrfs_ioctl_scrub_progress(root, argp);
case BTRFS_IOC_BALANCE_V2:
- return btrfs_ioctl_balance(root, argp);
+ return btrfs_ioctl_balance(file, argp);
case BTRFS_IOC_BALANCE_CTL:
return btrfs_ioctl_balance_ctl(root, arg);
case BTRFS_IOC_BALANCE_PROGRESS:
return btrfs_ioctl_balance_progress(root, argp);
+ case BTRFS_IOC_GET_DEV_STATS:
+ return btrfs_ioctl_get_dev_stats(root, argp, 0);
+ case BTRFS_IOC_GET_AND_RESET_DEV_STATS:
+ return btrfs_ioctl_get_dev_stats(root, argp, 1);
}
return -ENOTTY;
__u64 inodes;
};
+enum btrfs_dev_stat_values {
+ /* disk I/O failure stats */
+ BTRFS_DEV_STAT_WRITE_ERRS, /* EIO or EREMOTEIO from lower layers */
+ BTRFS_DEV_STAT_READ_ERRS, /* EIO or EREMOTEIO from lower layers */
+ BTRFS_DEV_STAT_FLUSH_ERRS, /* EIO or EREMOTEIO from lower layers */
+
+ /* stats for indirect indications for I/O failures */
+ BTRFS_DEV_STAT_CORRUPTION_ERRS, /* checksum error, bytenr error or
+ * contents is illegal: this is an
+ * indication that the block was damaged
+ * during read or write, or written to
+ * wrong location or read from wrong
+ * location */
+ BTRFS_DEV_STAT_GENERATION_ERRS, /* an indication that blocks have not
+ * been written */
+
+ BTRFS_DEV_STAT_VALUES_MAX
+};
+
+struct btrfs_ioctl_get_dev_stats {
+ __u64 devid; /* in */
+ __u64 nr_items; /* in/out */
+
+ /* out values: */
+ __u64 values[BTRFS_DEV_STAT_VALUES_MAX];
+
+ __u64 unused[128 - 2 - BTRFS_DEV_STAT_VALUES_MAX]; /* pad to 1k */
+};
+
#define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
struct btrfs_ioctl_ino_path_args)
#define BTRFS_IOC_LOGICAL_INO _IOWR(BTRFS_IOCTL_MAGIC, 36, \
struct btrfs_ioctl_ino_path_args)
+#define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, \
+ struct btrfs_ioctl_get_dev_stats)
+#define BTRFS_IOC_GET_AND_RESET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 53, \
+ struct btrfs_ioctl_get_dev_stats)
#endif
entry->len = len;
entry->disk_len = disk_len;
entry->bytes_left = len;
- entry->inode = inode;
+ entry->inode = igrab(inode);
entry->compress_type = compress_type;
if (type != BTRFS_ORDERED_IO_DONE && type != BTRFS_ORDERED_COMPLETE)
set_bit(type, &entry->flags);
trace_btrfs_ordered_extent_add(inode, entry);
- spin_lock(&tree->lock);
+ spin_lock_irq(&tree->lock);
node = tree_insert(&tree->tree, file_offset,
&entry->rb_node);
if (node)
ordered_data_tree_panic(inode, -EEXIST, file_offset);
- spin_unlock(&tree->lock);
+ spin_unlock_irq(&tree->lock);
spin_lock(&BTRFS_I(inode)->root->fs_info->ordered_extent_lock);
list_add_tail(&entry->root_extent_list,
struct btrfs_ordered_inode_tree *tree;
tree = &BTRFS_I(inode)->ordered_tree;
- spin_lock(&tree->lock);
+ spin_lock_irq(&tree->lock);
list_add_tail(&sum->list, &entry->list);
- spin_unlock(&tree->lock);
+ spin_unlock_irq(&tree->lock);
}
/*
*/
int btrfs_dec_test_first_ordered_pending(struct inode *inode,
struct btrfs_ordered_extent **cached,
- u64 *file_offset, u64 io_size)
+ u64 *file_offset, u64 io_size, int uptodate)
{
struct btrfs_ordered_inode_tree *tree;
struct rb_node *node;
struct btrfs_ordered_extent *entry = NULL;
int ret;
+ unsigned long flags;
u64 dec_end;
u64 dec_start;
u64 to_dec;
tree = &BTRFS_I(inode)->ordered_tree;
- spin_lock(&tree->lock);
+ spin_lock_irqsave(&tree->lock, flags);
node = tree_search(tree, *file_offset);
if (!node) {
ret = 1;
(unsigned long long)to_dec);
}
entry->bytes_left -= to_dec;
+ if (!uptodate)
+ set_bit(BTRFS_ORDERED_IOERR, &entry->flags);
+
if (entry->bytes_left == 0)
ret = test_and_set_bit(BTRFS_ORDERED_IO_DONE, &entry->flags);
else
*cached = entry;
atomic_inc(&entry->refs);
}
- spin_unlock(&tree->lock);
+ spin_unlock_irqrestore(&tree->lock, flags);
return ret == 0;
}
*/
int btrfs_dec_test_ordered_pending(struct inode *inode,
struct btrfs_ordered_extent **cached,
- u64 file_offset, u64 io_size)
+ u64 file_offset, u64 io_size, int uptodate)
{
struct btrfs_ordered_inode_tree *tree;
struct rb_node *node;
struct btrfs_ordered_extent *entry = NULL;
+ unsigned long flags;
int ret;
tree = &BTRFS_I(inode)->ordered_tree;
- spin_lock(&tree->lock);
+ spin_lock_irqsave(&tree->lock, flags);
+ if (cached && *cached) {
+ entry = *cached;
+ goto have_entry;
+ }
+
node = tree_search(tree, file_offset);
if (!node) {
ret = 1;
}
entry = rb_entry(node, struct btrfs_ordered_extent, rb_node);
+have_entry:
if (!offset_in_entry(entry, file_offset)) {
ret = 1;
goto out;
(unsigned long long)io_size);
}
entry->bytes_left -= io_size;
+ if (!uptodate)
+ set_bit(BTRFS_ORDERED_IOERR, &entry->flags);
+
if (entry->bytes_left == 0)
ret = test_and_set_bit(BTRFS_ORDERED_IO_DONE, &entry->flags);
else
*cached = entry;
atomic_inc(&entry->refs);
}
- spin_unlock(&tree->lock);
+ spin_unlock_irqrestore(&tree->lock, flags);
return ret == 0;
}
trace_btrfs_ordered_extent_put(entry->inode, entry);
if (atomic_dec_and_test(&entry->refs)) {
+ if (entry->inode)
+ btrfs_add_delayed_iput(entry->inode);
while (!list_empty(&entry->list)) {
cur = entry->list.next;
sum = list_entry(cur, struct btrfs_ordered_sum, list);
/*
* remove an ordered extent from the tree. No references are dropped
- * and you must wake_up entry->wait. You must hold the tree lock
- * while you call this function.
+ * and waiters are woken up.
*/
-static void __btrfs_remove_ordered_extent(struct inode *inode,
- struct btrfs_ordered_extent *entry)
+void btrfs_remove_ordered_extent(struct inode *inode,
+ struct btrfs_ordered_extent *entry)
{
struct btrfs_ordered_inode_tree *tree;
struct btrfs_root *root = BTRFS_I(inode)->root;
struct rb_node *node;
tree = &BTRFS_I(inode)->ordered_tree;
+ spin_lock_irq(&tree->lock);
node = &entry->rb_node;
rb_erase(node, &tree->tree);
tree->last = NULL;
set_bit(BTRFS_ORDERED_COMPLETE, &entry->flags);
+ spin_unlock_irq(&tree->lock);
spin_lock(&root->fs_info->ordered_extent_lock);
list_del_init(&entry->root_extent_list);
list_del_init(&BTRFS_I(inode)->ordered_operations);
}
spin_unlock(&root->fs_info->ordered_extent_lock);
-}
-
-/*
- * remove an ordered extent from the tree. No references are dropped
- * but any waiters are woken.
- */
-void btrfs_remove_ordered_extent(struct inode *inode,
- struct btrfs_ordered_extent *entry)
-{
- struct btrfs_ordered_inode_tree *tree;
-
- tree = &BTRFS_I(inode)->ordered_tree;
- spin_lock(&tree->lock);
- __btrfs_remove_ordered_extent(inode, entry);
- spin_unlock(&tree->lock);
wake_up(&entry->wait);
}
if (orig_end > INT_LIMIT(loff_t))
orig_end = INT_LIMIT(loff_t);
}
-again:
+
/* start IO across the range first to instantiate any delalloc
* extents
*/
- filemap_fdatawrite_range(inode->i_mapping, start, orig_end);
-
- /* The compression code will leave pages locked but return from
- * writepage without setting the page writeback. Starting again
- * with WB_SYNC_ALL will end up waiting for the IO to actually start.
- */
- filemap_fdatawrite_range(inode->i_mapping, start, orig_end);
-
- filemap_fdatawait_range(inode->i_mapping, start, orig_end);
+ filemap_write_and_wait_range(inode->i_mapping, start, orig_end);
end = orig_end;
found = 0;
break;
end--;
}
- if (found || test_range_bit(&BTRFS_I(inode)->io_tree, start, orig_end,
- EXTENT_DELALLOC, 0, NULL)) {
- schedule_timeout(1);
- goto again;
- }
}
/*
struct btrfs_ordered_extent *entry = NULL;
tree = &BTRFS_I(inode)->ordered_tree;
- spin_lock(&tree->lock);
+ spin_lock_irq(&tree->lock);
node = tree_search(tree, file_offset);
if (!node)
goto out;
if (entry)
atomic_inc(&entry->refs);
out:
- spin_unlock(&tree->lock);
+ spin_unlock_irq(&tree->lock);
return entry;
}
struct btrfs_ordered_extent *entry = NULL;
tree = &BTRFS_I(inode)->ordered_tree;
- spin_lock(&tree->lock);
+ spin_lock_irq(&tree->lock);
node = tree_search(tree, file_offset);
if (!node) {
node = tree_search(tree, file_offset + len);
out:
if (entry)
atomic_inc(&entry->refs);
- spin_unlock(&tree->lock);
+ spin_unlock_irq(&tree->lock);
return entry;
}
struct btrfs_ordered_extent *entry = NULL;
tree = &BTRFS_I(inode)->ordered_tree;
- spin_lock(&tree->lock);
+ spin_lock_irq(&tree->lock);
node = tree_search(tree, file_offset);
if (!node)
goto out;
entry = rb_entry(node, struct btrfs_ordered_extent, rb_node);
atomic_inc(&entry->refs);
out:
- spin_unlock(&tree->lock);
+ spin_unlock_irq(&tree->lock);
return entry;
}
struct btrfs_ordered_extent *ordered)
{
struct btrfs_ordered_inode_tree *tree = &BTRFS_I(inode)->ordered_tree;
- struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
u64 disk_i_size;
u64 new_i_size;
u64 i_size_test;
else
offset = ALIGN(offset, BTRFS_I(inode)->root->sectorsize);
- spin_lock(&tree->lock);
+ spin_lock_irq(&tree->lock);
disk_i_size = BTRFS_I(inode)->disk_i_size;
/* truncate file */
goto out;
}
- /*
- * we can't update the disk_isize if there are delalloc bytes
- * between disk_i_size and this ordered extent
- */
- if (test_range_bit(io_tree, disk_i_size, offset - 1,
- EXTENT_DELALLOC, 0, NULL)) {
- goto out;
- }
/*
* walk backward from this ordered extent to disk_i_size.
* if we find an ordered extent then we can't update disk i_size
}
node = prev;
}
- while (node) {
+ for (; node; node = rb_prev(node)) {
test = rb_entry(node, struct btrfs_ordered_extent, rb_node);
+
+ /* We treat this entry as if it doesnt exist */
+ if (test_bit(BTRFS_ORDERED_UPDATED_ISIZE, &test->flags))
+ continue;
if (test->file_offset + test->len <= disk_i_size)
break;
if (test->file_offset >= i_size)
break;
if (test->file_offset >= disk_i_size)
goto out;
- node = rb_prev(node);
}
new_i_size = min_t(u64, offset, i_size);
else
node = rb_first(&tree->tree);
}
- i_size_test = 0;
- if (node) {
- /*
- * do we have an area where IO might have finished
- * between our ordered extent and the next one.
- */
+
+ /*
+ * We are looking for an area between our current extent and the next
+ * ordered extent to update the i_size to. There are 3 cases here
+ *
+ * 1) We don't actually have anything and we can update to i_size.
+ * 2) We have stuff but they already did their i_size update so again we
+ * can just update to i_size.
+ * 3) We have an outstanding ordered extent so the most we can update
+ * our disk_i_size to is the start of the next offset.
+ */
+ i_size_test = i_size;
+ for (; node; node = rb_next(node)) {
test = rb_entry(node, struct btrfs_ordered_extent, rb_node);
- if (test->file_offset > offset)
+
+ if (test_bit(BTRFS_ORDERED_UPDATED_ISIZE, &test->flags))
+ continue;
+ if (test->file_offset > offset) {
i_size_test = test->file_offset;
- } else {
- i_size_test = i_size;
+ break;
+ }
}
/*
* i_size_test is the end of a region after this ordered
- * extent where there are no ordered extents. As long as there
- * are no delalloc bytes in this area, it is safe to update
- * disk_i_size to the end of the region.
+ * extent where there are no ordered extents, we can safely set
+ * disk_i_size to this.
*/
- if (i_size_test > offset &&
- !test_range_bit(io_tree, offset, i_size_test - 1,
- EXTENT_DELALLOC, 0, NULL)) {
+ if (i_size_test > offset)
new_i_size = min_t(u64, i_size_test, i_size);
- }
BTRFS_I(inode)->disk_i_size = new_i_size;
ret = 0;
out:
/*
- * we need to remove the ordered extent with the tree lock held
- * so that other people calling this function don't find our fully
- * processed ordered entry and skip updating the i_size
+ * We need to do this because we can't remove ordered extents until
+ * after the i_disk_size has been updated and then the inode has been
+ * updated to reflect the change, so we need to tell anybody who finds
+ * this ordered extent that we've already done all the real work, we
+ * just haven't completed all the other work.
*/
if (ordered)
- __btrfs_remove_ordered_extent(inode, ordered);
- spin_unlock(&tree->lock);
- if (ordered)
- wake_up(&ordered->wait);
+ set_bit(BTRFS_ORDERED_UPDATED_ISIZE, &ordered->flags);
+ spin_unlock_irq(&tree->lock);
return ret;
}
if (!ordered)
return 1;
- spin_lock(&tree->lock);
+ spin_lock_irq(&tree->lock);
list_for_each_entry_reverse(ordered_sum, &ordered->list, list) {
if (disk_bytenr >= ordered_sum->bytenr) {
num_sectors = ordered_sum->len / sectorsize;
}
}
out:
- spin_unlock(&tree->lock);
+ spin_unlock_irq(&tree->lock);
btrfs_put_ordered_extent(ordered);
return ret;
}
#define BTRFS_ORDERED_DIRECT 5 /* set when we're doing DIO with this extent */
+#define BTRFS_ORDERED_IOERR 6 /* We had an io error when writing this out */
+
+#define BTRFS_ORDERED_UPDATED_ISIZE 7 /* indicates wether this ordered extent
+ * has done its due diligence in updating
+ * the isize. */
+
struct btrfs_ordered_extent {
/* logical offset in the file */
u64 file_offset;
/* a per root list of all the pending ordered extents */
struct list_head root_extent_list;
+
+ struct btrfs_work work;
};
struct btrfs_ordered_extent *entry);
int btrfs_dec_test_ordered_pending(struct inode *inode,
struct btrfs_ordered_extent **cached,
- u64 file_offset, u64 io_size);
+ u64 file_offset, u64 io_size, int uptodate);
int btrfs_dec_test_first_ordered_pending(struct inode *inode,
struct btrfs_ordered_extent **cached,
- u64 *file_offset, u64 io_size);
+ u64 *file_offset, u64 io_size,
+ int uptodate);
int btrfs_add_ordered_extent(struct inode *inode, u64 file_offset,
u64 start, u64 len, u64 disk_len, int type);
int btrfs_add_ordered_extent_dio(struct inode *inode, u64 file_offset,
btrfs_dev_extent_chunk_offset(l, dev_extent),
(unsigned long long)
btrfs_dev_extent_length(l, dev_extent));
+ case BTRFS_DEV_STATS_KEY:
+ printk(KERN_INFO "\t\tdevice stats\n");
+ break;
};
}
}
{
struct reada_machine_work *rmw;
struct btrfs_fs_info *fs_info;
+ int old_ioprio;
rmw = container_of(work, struct reada_machine_work, work);
fs_info = rmw->fs_info;
kfree(rmw);
+ old_ioprio = IOPRIO_PRIO_VALUE(task_nice_ioclass(current),
+ task_nice_ioprio(current));
+ set_task_ioprio(current, BTRFS_IOPRIO_READA);
__reada_start_machine(fs_info);
+ set_task_ioprio(current, old_ioprio);
}
static void __reada_start_machine(struct btrfs_fs_info *fs_info)
struct scrub_page {
struct scrub_block *sblock;
struct page *page;
- struct block_device *bdev;
+ struct btrfs_device *dev;
u64 flags; /* extent flags */
u64 generation;
u64 logical;
unsigned int header_error:1;
unsigned int checksum_error:1;
unsigned int no_io_error_seen:1;
+ unsigned int generation_error:1; /* also sets header_error */
};
};
sdev->stat.read_errors++;
sdev->stat.uncorrectable_errors++;
spin_unlock(&sdev->stat_lock);
+ btrfs_dev_stat_inc_and_print(sdev->dev,
+ BTRFS_DEV_STAT_READ_ERRS);
goto out;
}
sdev->stat.read_errors++;
sdev->stat.uncorrectable_errors++;
spin_unlock(&sdev->stat_lock);
+ btrfs_dev_stat_inc_and_print(sdev->dev,
+ BTRFS_DEV_STAT_READ_ERRS);
goto out;
}
BUG_ON(failed_mirror_index >= BTRFS_MAX_MIRRORS);
sdev->stat.read_errors++;
sdev->stat.uncorrectable_errors++;
spin_unlock(&sdev->stat_lock);
+ btrfs_dev_stat_inc_and_print(sdev->dev,
+ BTRFS_DEV_STAT_READ_ERRS);
goto out;
}
spin_unlock(&sdev->stat_lock);
if (__ratelimit(&_rs))
scrub_print_warning("i/o error", sblock_to_check);
+ btrfs_dev_stat_inc_and_print(sdev->dev,
+ BTRFS_DEV_STAT_READ_ERRS);
} else if (sblock_bad->checksum_error) {
spin_lock(&sdev->stat_lock);
sdev->stat.csum_errors++;
spin_unlock(&sdev->stat_lock);
if (__ratelimit(&_rs))
scrub_print_warning("checksum error", sblock_to_check);
+ btrfs_dev_stat_inc_and_print(sdev->dev,
+ BTRFS_DEV_STAT_CORRUPTION_ERRS);
} else if (sblock_bad->header_error) {
spin_lock(&sdev->stat_lock);
sdev->stat.verify_errors++;
if (__ratelimit(&_rs))
scrub_print_warning("checksum/header error",
sblock_to_check);
+ if (sblock_bad->generation_error)
+ btrfs_dev_stat_inc_and_print(sdev->dev,
+ BTRFS_DEV_STAT_GENERATION_ERRS);
+ else
+ btrfs_dev_stat_inc_and_print(sdev->dev,
+ BTRFS_DEV_STAT_CORRUPTION_ERRS);
}
if (sdev->readonly)
page = sblock->pagev + page_index;
page->logical = logical;
page->physical = bbio->stripes[mirror_index].physical;
- /* for missing devices, bdev is NULL */
- page->bdev = bbio->stripes[mirror_index].dev->bdev;
+ /* for missing devices, dev->bdev is NULL */
+ page->dev = bbio->stripes[mirror_index].dev;
page->mirror_num = mirror_index + 1;
page->page = alloc_page(GFP_NOFS);
if (!page->page) {
struct scrub_page *page = sblock->pagev + page_num;
DECLARE_COMPLETION_ONSTACK(complete);
- if (page->bdev == NULL) {
+ if (page->dev->bdev == NULL) {
page->io_error = 1;
sblock->no_io_error_seen = 0;
continue;
bio = bio_alloc(GFP_NOFS, 1);
if (!bio)
return -EIO;
- bio->bi_bdev = page->bdev;
+ bio->bi_bdev = page->dev->bdev;
bio->bi_sector = page->physical >> 9;
bio->bi_end_io = scrub_complete_bio_end_io;
bio->bi_private = &complete;
h = (struct btrfs_header *)mapped_buffer;
if (sblock->pagev[0].logical != le64_to_cpu(h->bytenr) ||
- generation != le64_to_cpu(h->generation) ||
memcmp(h->fsid, fs_info->fsid, BTRFS_UUID_SIZE) ||
memcmp(h->chunk_tree_uuid, fs_info->chunk_tree_uuid,
- BTRFS_UUID_SIZE))
+ BTRFS_UUID_SIZE)) {
sblock->header_error = 1;
+ } else if (generation != le64_to_cpu(h->generation)) {
+ sblock->header_error = 1;
+ sblock->generation_error = 1;
+ }
csum = h->csum;
} else {
if (!have_csum)
bio = bio_alloc(GFP_NOFS, 1);
if (!bio)
return -EIO;
- bio->bi_bdev = page_bad->bdev;
+ bio->bi_bdev = page_bad->dev->bdev;
bio->bi_sector = page_bad->physical >> 9;
bio->bi_end_io = scrub_complete_bio_end_io;
bio->bi_private = &complete;
/* this will also unplug the queue */
wait_for_completion(&complete);
+ if (!bio_flagged(bio, BIO_UPTODATE)) {
+ btrfs_dev_stat_inc_and_print(page_bad->dev,
+ BTRFS_DEV_STAT_WRITE_ERRS);
+ bio_put(bio);
+ return -EIO;
+ }
bio_put(bio);
}
u64 mapped_size;
void *p;
u32 crc = ~(u32)0;
- int fail = 0;
+ int fail_gen = 0;
+ int fail_cor = 0;
u64 len;
int index;
memcpy(on_disk_csum, s->csum, sdev->csum_size);
if (sblock->pagev[0].logical != le64_to_cpu(s->bytenr))
- ++fail;
+ ++fail_cor;
if (sblock->pagev[0].generation != le64_to_cpu(s->generation))
- ++fail;
+ ++fail_gen;
if (memcmp(s->fsid, fs_info->fsid, BTRFS_UUID_SIZE))
- ++fail;
+ ++fail_cor;
len = BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE;
mapped_size = PAGE_SIZE - BTRFS_CSUM_SIZE;
btrfs_csum_final(crc, calculated_csum);
if (memcmp(calculated_csum, on_disk_csum, sdev->csum_size))
- ++fail;
+ ++fail_cor;
- if (fail) {
+ if (fail_cor + fail_gen) {
/*
* if we find an error in a super block, we just report it.
* They will get written with the next transaction commit
spin_lock(&sdev->stat_lock);
++sdev->stat.super_errors;
spin_unlock(&sdev->stat_lock);
+ if (fail_cor)
+ btrfs_dev_stat_inc_and_print(sdev->dev,
+ BTRFS_DEV_STAT_CORRUPTION_ERRS);
+ else
+ btrfs_dev_stat_inc_and_print(sdev->dev,
+ BTRFS_DEV_STAT_GENERATION_ERRS);
}
- return fail;
+ return fail_cor + fail_gen;
}
static void scrub_block_get(struct scrub_block *sblock)
return -ENOMEM;
}
spage->sblock = sblock;
- spage->bdev = sdev->dev->bdev;
+ spage->dev = sdev->dev;
spage->flags = flags;
spage->generation = gen;
spage->logical = logical;
va_start(args, fmt);
if (fmt[0] == '<' && isdigit(fmt[1]) && fmt[2] == '>') {
- strncpy(lvl, fmt, 3);
+ memcpy(lvl, fmt, 3);
+ lvl[3] = '\0';
fmt += 3;
type = logtypes[fmt[1] - '0'];
} else
case Opt_thread_pool:
intarg = 0;
match_int(&args[0], &intarg);
- if (intarg) {
+ if (intarg)
info->thread_pool_size = intarg;
- printk(KERN_INFO "btrfs: thread pool %d\n",
- info->thread_pool_size);
- }
break;
case Opt_max_inline:
num = match_strdup(&args[0]);
#ifdef CONFIG_BTRFS_FS_POSIX_ACL
sb->s_flags |= MS_POSIXACL;
#endif
-
+ sb->s_flags |= MS_I_VERSION;
err = open_ctree(sb, fs_devices, (char *)data);
if (err) {
printk("btrfs: open_ctree failed\n");
*/
static char *setup_root_args(char *args)
{
- unsigned copied = 0;
- unsigned len = strlen(args) + 2;
- char *pos;
- char *ret;
+ unsigned len = strlen(args) + 2 + 1;
+ char *src, *dst, *buf;
/*
- * We need the same args as before, but minus
- *
- * subvol=a
- *
- * and add
- *
- * subvolid=0
+ * We need the same args as before, but with this substitution:
+ * s!subvol=[^,]+!subvolid=0!
*
- * which is a difference of 2 characters, so we allocate strlen(args) +
- * 2 characters.
+ * Since the replacement string is up to 2 bytes longer than the
+ * original, allocate strlen(args) + 2 + 1 bytes.
*/
- ret = kzalloc(len * sizeof(char), GFP_NOFS);
- if (!ret)
- return NULL;
- pos = strstr(args, "subvol=");
+ src = strstr(args, "subvol=");
/* This shouldn't happen, but just in case.. */
- if (!pos) {
- kfree(ret);
+ if (!src)
+ return NULL;
+
+ buf = dst = kmalloc(len, GFP_NOFS);
+ if (!buf)
return NULL;
- }
/*
- * The subvol=<> arg is not at the front of the string, copy everybody
- * up to that into ret.
+ * If the subvol= arg is not at the start of the string,
+ * copy whatever precedes it into buf.
*/
- if (pos != args) {
- *pos = '\0';
- strcpy(ret, args);
- copied += strlen(args);
- pos++;
+ if (src != args) {
+ *src++ = '\0';
+ strcpy(buf, args);
+ dst += strlen(args);
}
- strncpy(ret + copied, "subvolid=0", len - copied);
-
- /* Length of subvolid=0 */
- copied += 10;
+ strcpy(dst, "subvolid=0");
+ dst += strlen("subvolid=0");
/*
- * If there is no , after the subvol= option then we know there's no
- * other options and we can just return.
+ * If there is a "," after the original subvol=... string,
+ * copy that suffix into our buffer. Otherwise, we're done.
*/
- pos = strchr(pos, ',');
- if (!pos)
- return ret;
+ src = strchr(src, ',');
+ if (src)
+ strcpy(dst, src);
- /* Copy the rest of the arguments into our buffer */
- strncpy(ret + copied, pos, len - copied);
- copied += strlen(pos);
-
- return ret;
+ return buf;
}
static struct dentry *mount_subvol(const char *subvol_name, int flags,
return ERR_PTR(error);
}
+static void btrfs_set_max_workers(struct btrfs_workers *workers, int new_limit)
+{
+ spin_lock_irq(&workers->lock);
+ workers->max_workers = new_limit;
+ spin_unlock_irq(&workers->lock);
+}
+
+static void btrfs_resize_thread_pool(struct btrfs_fs_info *fs_info,
+ int new_pool_size, int old_pool_size)
+{
+ if (new_pool_size == old_pool_size)
+ return;
+
+ fs_info->thread_pool_size = new_pool_size;
+
+ printk(KERN_INFO "btrfs: resize thread pool %d -> %d\n",
+ old_pool_size, new_pool_size);
+
+ btrfs_set_max_workers(&fs_info->generic_worker, new_pool_size);
+ btrfs_set_max_workers(&fs_info->workers, new_pool_size);
+ btrfs_set_max_workers(&fs_info->delalloc_workers, new_pool_size);
+ btrfs_set_max_workers(&fs_info->submit_workers, new_pool_size);
+ btrfs_set_max_workers(&fs_info->caching_workers, new_pool_size);
+ btrfs_set_max_workers(&fs_info->fixup_workers, new_pool_size);
+ btrfs_set_max_workers(&fs_info->endio_workers, new_pool_size);
+ btrfs_set_max_workers(&fs_info->endio_meta_workers, new_pool_size);
+ btrfs_set_max_workers(&fs_info->endio_meta_write_workers, new_pool_size);
+ btrfs_set_max_workers(&fs_info->endio_write_workers, new_pool_size);
+ btrfs_set_max_workers(&fs_info->endio_freespace_worker, new_pool_size);
+ btrfs_set_max_workers(&fs_info->delayed_workers, new_pool_size);
+ btrfs_set_max_workers(&fs_info->readahead_workers, new_pool_size);
+ btrfs_set_max_workers(&fs_info->scrub_workers, new_pool_size);
+}
+
static int btrfs_remount(struct super_block *sb, int *flags, char *data)
{
struct btrfs_fs_info *fs_info = btrfs_sb(sb);
goto restore;
}
+ btrfs_resize_thread_pool(fs_info,
+ fs_info->thread_pool_size, old_thread_pool_size);
+
if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
return 0;
fs_info->compress_type = old_compress_type;
fs_info->max_inline = old_max_inline;
fs_info->alloc_start = old_alloc_start;
- fs_info->thread_pool_size = old_thread_pool_size;
+ btrfs_resize_thread_pool(fs_info,
+ old_thread_pool_size, fs_info->thread_pool_size);
fs_info->metadata_ratio = old_metadata_ratio;
return ret;
}
#include "locking.h"
#include "tree-log.h"
#include "inode-map.h"
+#include "volumes.h"
#define BTRFS_ROOT_TRANS_TAG 0
static noinline int join_transaction(struct btrfs_root *root, int nofail)
{
struct btrfs_transaction *cur_trans;
+ struct btrfs_fs_info *fs_info = root->fs_info;
- spin_lock(&root->fs_info->trans_lock);
+ spin_lock(&fs_info->trans_lock);
loop:
/* The file system has been taken offline. No new transactions. */
- if (root->fs_info->fs_state & BTRFS_SUPER_FLAG_ERROR) {
- spin_unlock(&root->fs_info->trans_lock);
+ if (fs_info->fs_state & BTRFS_SUPER_FLAG_ERROR) {
+ spin_unlock(&fs_info->trans_lock);
return -EROFS;
}
- if (root->fs_info->trans_no_join) {
+ if (fs_info->trans_no_join) {
if (!nofail) {
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
return -EBUSY;
}
}
- cur_trans = root->fs_info->running_transaction;
+ cur_trans = fs_info->running_transaction;
if (cur_trans) {
if (cur_trans->aborted) {
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
return cur_trans->aborted;
}
atomic_inc(&cur_trans->use_count);
atomic_inc(&cur_trans->num_writers);
cur_trans->num_joined++;
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
return 0;
}
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
cur_trans = kmem_cache_alloc(btrfs_transaction_cachep, GFP_NOFS);
if (!cur_trans)
return -ENOMEM;
- spin_lock(&root->fs_info->trans_lock);
- if (root->fs_info->running_transaction) {
+ spin_lock(&fs_info->trans_lock);
+ if (fs_info->running_transaction) {
/*
* someone started a transaction after we unlocked. Make sure
* to redo the trans_no_join checks above
*/
kmem_cache_free(btrfs_transaction_cachep, cur_trans);
- cur_trans = root->fs_info->running_transaction;
+ cur_trans = fs_info->running_transaction;
goto loop;
}
cur_trans->delayed_refs.flushing = 0;
cur_trans->delayed_refs.run_delayed_start = 0;
cur_trans->delayed_refs.seq = 1;
+
+ /*
+ * although the tree mod log is per file system and not per transaction,
+ * the log must never go across transaction boundaries.
+ */
+ smp_mb();
+ if (!list_empty(&fs_info->tree_mod_seq_list)) {
+ printk(KERN_ERR "btrfs: tree_mod_seq_list not empty when "
+ "creating a fresh transaction\n");
+ WARN_ON(1);
+ }
+ if (!RB_EMPTY_ROOT(&fs_info->tree_mod_log)) {
+ printk(KERN_ERR "btrfs: tree_mod_log rb tree not empty when "
+ "creating a fresh transaction\n");
+ WARN_ON(1);
+ }
+ atomic_set(&fs_info->tree_mod_seq, 0);
+
init_waitqueue_head(&cur_trans->delayed_refs.seq_wait);
spin_lock_init(&cur_trans->commit_lock);
spin_lock_init(&cur_trans->delayed_refs.lock);
INIT_LIST_HEAD(&cur_trans->delayed_refs.seq_head);
INIT_LIST_HEAD(&cur_trans->pending_snapshots);
- list_add_tail(&cur_trans->list, &root->fs_info->trans_list);
+ list_add_tail(&cur_trans->list, &fs_info->trans_list);
extent_io_tree_init(&cur_trans->dirty_pages,
- root->fs_info->btree_inode->i_mapping);
- root->fs_info->generation++;
- cur_trans->transid = root->fs_info->generation;
- root->fs_info->running_transaction = cur_trans;
+ fs_info->btree_inode->i_mapping);
+ fs_info->generation++;
+ cur_trans->transid = fs_info->generation;
+ fs_info->running_transaction = cur_trans;
cur_trans->aborted = 0;
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
return 0;
}
if (ret)
return ret;
+ ret = btrfs_run_dev_stats(trans, root->fs_info);
+ BUG_ON(ret);
+
while (!list_empty(&fs_info->dirty_cowonly_roots)) {
next = fs_info->dirty_cowonly_roots.next;
list_del_init(next);
int i;
int ret;
- btrfs_read_buffer(eb, gen);
+ ret = btrfs_read_buffer(eb, gen);
+ if (ret)
+ return ret;
level = btrfs_header_level(eb);
path->slots[*level]++;
if (wc->free) {
- btrfs_read_buffer(next, ptr_gen);
+ ret = btrfs_read_buffer(next, ptr_gen);
+ if (ret) {
+ free_extent_buffer(next);
+ return ret;
+ }
btrfs_tree_lock(next);
btrfs_set_lock_blocking(next);
free_extent_buffer(next);
continue;
}
- btrfs_read_buffer(next, ptr_gen);
+ ret = btrfs_read_buffer(next, ptr_gen);
+ if (ret) {
+ free_extent_buffer(next);
+ return ret;
+ }
WARN_ON(*level <= 0);
if (path->nodes[*level-1])
btrfs_release_path(path);
}
btrfs_release_path(path);
+ if (ret > 0)
+ ret = 0;
return ret;
}
return ret;
}
-static int inode_in_log(struct btrfs_trans_handle *trans,
- struct inode *inode)
-{
- struct btrfs_root *root = BTRFS_I(inode)->root;
- int ret = 0;
-
- mutex_lock(&root->log_mutex);
- if (BTRFS_I(inode)->logged_trans == trans->transid &&
- BTRFS_I(inode)->last_sub_trans <= root->last_log_commit)
- ret = 1;
- mutex_unlock(&root->log_mutex);
- return ret;
-}
-
-
/*
* helper function around btrfs_log_inode to make sure newly created
* parent directories also end up in the log. A minimal inode and backref
if (ret)
goto end_no_trans;
- if (inode_in_log(trans, inode)) {
+ if (btrfs_inode_in_log(inode, trans->transid)) {
ret = BTRFS_NO_LOG_SYNC;
goto end_no_trans;
}
*
* ulist = ulist_alloc();
* ulist_add(ulist, root);
- * elem = NULL;
+ * ULIST_ITER_INIT(&uiter);
*
- * while ((elem = ulist_next(ulist, elem)) {
+ * while ((elem = ulist_next(ulist, &uiter)) {
* for (all child nodes n in elem)
* ulist_add(ulist, n);
* do something useful with the node;
*
* The allocated ulist will be returned in an initialized state.
*/
-struct ulist *ulist_alloc(unsigned long gfp_mask)
+struct ulist *ulist_alloc(gfp_t gfp_mask)
{
struct ulist *ulist = kmalloc(sizeof(*ulist), gfp_mask);
* unaltered.
*/
int ulist_add(struct ulist *ulist, u64 val, unsigned long aux,
- unsigned long gfp_mask)
+ gfp_t gfp_mask)
+{
+ return ulist_add_merge(ulist, val, aux, NULL, gfp_mask);
+}
+
+int ulist_add_merge(struct ulist *ulist, u64 val, unsigned long aux,
+ unsigned long *old_aux, gfp_t gfp_mask)
{
int i;
for (i = 0; i < ulist->nnodes; ++i) {
- if (ulist->nodes[i].val == val)
+ if (ulist->nodes[i].val == val) {
+ if (old_aux)
+ *old_aux = ulist->nodes[i].aux;
return 0;
+ }
}
if (ulist->nnodes >= ulist->nodes_alloced) {
/**
* ulist_next - iterate ulist
* @ulist: ulist to iterate
- * @prev: previously returned element or %NULL to start iteration
+ * @uiter: iterator variable, initialized with ULIST_ITER_INIT(&iterator)
*
* Note: locking must be provided by the caller. In case of rwlocks only read
* locking is needed
*
- * This function is used to iterate an ulist. The iteration is started with
- * @prev = %NULL. It returns the next element from the ulist or %NULL when the
+ * This function is used to iterate an ulist.
+ * It returns the next element from the ulist or %NULL when the
* end is reached. No guarantee is made with respect to the order in which
* the elements are returned. They might neither be returned in order of
* addition nor in ascending order.
* It is allowed to call ulist_add during an enumeration. Newly added items
* are guaranteed to show up in the running enumeration.
*/
-struct ulist_node *ulist_next(struct ulist *ulist, struct ulist_node *prev)
+struct ulist_node *ulist_next(struct ulist *ulist, struct ulist_iterator *uiter)
{
- int next;
-
if (ulist->nnodes == 0)
return NULL;
-
- if (!prev)
- return &ulist->nodes[0];
-
- next = (prev - ulist->nodes) + 1;
- if (next < 0 || next >= ulist->nnodes)
+ if (uiter->i < 0 || uiter->i >= ulist->nnodes)
return NULL;
- return &ulist->nodes[next];
+ return &ulist->nodes[uiter->i++];
}
EXPORT_SYMBOL(ulist_next);
*/
#define ULIST_SIZE 16
+struct ulist_iterator {
+ int i;
+};
+
/*
* element of the list
*/
void ulist_init(struct ulist *ulist);
void ulist_fini(struct ulist *ulist);
void ulist_reinit(struct ulist *ulist);
-struct ulist *ulist_alloc(unsigned long gfp_mask);
+struct ulist *ulist_alloc(gfp_t gfp_mask);
void ulist_free(struct ulist *ulist);
int ulist_add(struct ulist *ulist, u64 val, unsigned long aux,
- unsigned long gfp_mask);
-struct ulist_node *ulist_next(struct ulist *ulist, struct ulist_node *prev);
+ gfp_t gfp_mask);
+int ulist_add_merge(struct ulist *ulist, u64 val, unsigned long aux,
+ unsigned long *old_aux, gfp_t gfp_mask);
+struct ulist_node *ulist_next(struct ulist *ulist,
+ struct ulist_iterator *uiter);
+
+#define ULIST_ITER_INIT(uiter) ((uiter)->i = 0)
#endif
#include <linux/random.h>
#include <linux/iocontext.h>
#include <linux/capability.h>
+#include <linux/ratelimit.h>
#include <linux/kthread.h>
#include <asm/div64.h>
#include "compat.h"
struct btrfs_root *root,
struct btrfs_device *device);
static int btrfs_relocate_sys_chunks(struct btrfs_root *root);
+static void __btrfs_reset_dev_stats(struct btrfs_device *dev);
+static void btrfs_dev_stat_print_on_load(struct btrfs_device *device);
static DEFINE_MUTEX(uuid_mutex);
static LIST_HEAD(fs_uuids);
return -ENOMEM;
}
device->devid = devid;
+ device->dev_stats_valid = 0;
device->work.func = pending_bios_fn;
memcpy(device->uuid, disk_super->dev_item.uuid,
BTRFS_UUID_SIZE);
int ret = 0;
if ((sb->s_flags & MS_RDONLY) && !root->fs_info->fs_devices->seeding)
- return -EINVAL;
+ return -EROFS;
bdev = blkdev_get_by_path(device_path, FMODE_WRITE | FMODE_EXCL,
root->fs_info->bdev_holder);
return 0;
}
+static void *merge_stripe_index_into_bio_private(void *bi_private,
+ unsigned int stripe_index)
+{
+ /*
+ * with single, dup, RAID0, RAID1 and RAID10, stripe_index is
+ * at most 1.
+ * The alternative solution (instead of stealing bits from the
+ * pointer) would be to allocate an intermediate structure
+ * that contains the old private pointer plus the stripe_index.
+ */
+ BUG_ON((((uintptr_t)bi_private) & 3) != 0);
+ BUG_ON(stripe_index > 3);
+ return (void *)(((uintptr_t)bi_private) | stripe_index);
+}
+
+static struct btrfs_bio *extract_bbio_from_bio_private(void *bi_private)
+{
+ return (struct btrfs_bio *)(((uintptr_t)bi_private) & ~((uintptr_t)3));
+}
+
+static unsigned int extract_stripe_index_from_bio_private(void *bi_private)
+{
+ return (unsigned int)((uintptr_t)bi_private) & 3;
+}
+
static void btrfs_end_bio(struct bio *bio, int err)
{
- struct btrfs_bio *bbio = bio->bi_private;
+ struct btrfs_bio *bbio = extract_bbio_from_bio_private(bio->bi_private);
int is_orig_bio = 0;
- if (err)
+ if (err) {
atomic_inc(&bbio->error);
+ if (err == -EIO || err == -EREMOTEIO) {
+ unsigned int stripe_index =
+ extract_stripe_index_from_bio_private(
+ bio->bi_private);
+ struct btrfs_device *dev;
+
+ BUG_ON(stripe_index >= bbio->num_stripes);
+ dev = bbio->stripes[stripe_index].dev;
+ if (bio->bi_rw & WRITE)
+ btrfs_dev_stat_inc(dev,
+ BTRFS_DEV_STAT_WRITE_ERRS);
+ else
+ btrfs_dev_stat_inc(dev,
+ BTRFS_DEV_STAT_READ_ERRS);
+ if ((bio->bi_rw & WRITE_FLUSH) == WRITE_FLUSH)
+ btrfs_dev_stat_inc(dev,
+ BTRFS_DEV_STAT_FLUSH_ERRS);
+ btrfs_dev_stat_print_on_error(dev);
+ }
+ }
if (bio == bbio->orig_bio)
is_orig_bio = 1;
bio = first_bio;
}
bio->bi_private = bbio;
+ bio->bi_private = merge_stripe_index_into_bio_private(
+ bio->bi_private, (unsigned int)dev_nr);
bio->bi_end_io = btrfs_end_bio;
bio->bi_sector = bbio->stripes[dev_nr].physical >> 9;
dev = bbio->stripes[dev_nr].dev;
return ret;
}
+struct btrfs_device *btrfs_find_device_for_logical(struct btrfs_root *root,
+ u64 logical, int mirror_num)
+{
+ struct btrfs_mapping_tree *map_tree = &root->fs_info->mapping_tree;
+ int ret;
+ u64 map_length = 0;
+ struct btrfs_bio *bbio = NULL;
+ struct btrfs_device *device;
+
+ BUG_ON(mirror_num == 0);
+ ret = btrfs_map_block(map_tree, WRITE, logical, &map_length, &bbio,
+ mirror_num);
+ if (ret) {
+ BUG_ON(bbio != NULL);
+ return NULL;
+ }
+ BUG_ON(mirror_num != bbio->mirror_num);
+ device = bbio->stripes[mirror_num - 1].dev;
+ kfree(bbio);
+ return device;
+}
+
int btrfs_read_chunk_tree(struct btrfs_root *root)
{
struct btrfs_path *path;
btrfs_free_path(path);
return ret;
}
+
+static void __btrfs_reset_dev_stats(struct btrfs_device *dev)
+{
+ int i;
+
+ for (i = 0; i < BTRFS_DEV_STAT_VALUES_MAX; i++)
+ btrfs_dev_stat_reset(dev, i);
+}
+
+int btrfs_init_dev_stats(struct btrfs_fs_info *fs_info)
+{
+ struct btrfs_key key;
+ struct btrfs_key found_key;
+ struct btrfs_root *dev_root = fs_info->dev_root;
+ struct btrfs_fs_devices *fs_devices = fs_info->fs_devices;
+ struct extent_buffer *eb;
+ int slot;
+ int ret = 0;
+ struct btrfs_device *device;
+ struct btrfs_path *path = NULL;
+ int i;
+
+ path = btrfs_alloc_path();
+ if (!path) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ mutex_lock(&fs_devices->device_list_mutex);
+ list_for_each_entry(device, &fs_devices->devices, dev_list) {
+ int item_size;
+ struct btrfs_dev_stats_item *ptr;
+
+ key.objectid = 0;
+ key.type = BTRFS_DEV_STATS_KEY;
+ key.offset = device->devid;
+ ret = btrfs_search_slot(NULL, dev_root, &key, path, 0, 0);
+ if (ret) {
+ printk(KERN_WARNING "btrfs: no dev_stats entry found for device %s (devid %llu) (OK on first mount after mkfs)\n",
+ device->name, (unsigned long long)device->devid);
+ __btrfs_reset_dev_stats(device);
+ device->dev_stats_valid = 1;
+ btrfs_release_path(path);
+ continue;
+ }
+ slot = path->slots[0];
+ eb = path->nodes[0];
+ btrfs_item_key_to_cpu(eb, &found_key, slot);
+ item_size = btrfs_item_size_nr(eb, slot);
+
+ ptr = btrfs_item_ptr(eb, slot,
+ struct btrfs_dev_stats_item);
+
+ for (i = 0; i < BTRFS_DEV_STAT_VALUES_MAX; i++) {
+ if (item_size >= (1 + i) * sizeof(__le64))
+ btrfs_dev_stat_set(device, i,
+ btrfs_dev_stats_value(eb, ptr, i));
+ else
+ btrfs_dev_stat_reset(device, i);
+ }
+
+ device->dev_stats_valid = 1;
+ btrfs_dev_stat_print_on_load(device);
+ btrfs_release_path(path);
+ }
+ mutex_unlock(&fs_devices->device_list_mutex);
+
+out:
+ btrfs_free_path(path);
+ return ret < 0 ? ret : 0;
+}
+
+static int update_dev_stat_item(struct btrfs_trans_handle *trans,
+ struct btrfs_root *dev_root,
+ struct btrfs_device *device)
+{
+ struct btrfs_path *path;
+ struct btrfs_key key;
+ struct extent_buffer *eb;
+ struct btrfs_dev_stats_item *ptr;
+ int ret;
+ int i;
+
+ key.objectid = 0;
+ key.type = BTRFS_DEV_STATS_KEY;
+ key.offset = device->devid;
+
+ path = btrfs_alloc_path();
+ BUG_ON(!path);
+ ret = btrfs_search_slot(trans, dev_root, &key, path, -1, 1);
+ if (ret < 0) {
+ printk(KERN_WARNING "btrfs: error %d while searching for dev_stats item for device %s!\n",
+ ret, device->name);
+ goto out;
+ }
+
+ if (ret == 0 &&
+ btrfs_item_size_nr(path->nodes[0], path->slots[0]) < sizeof(*ptr)) {
+ /* need to delete old one and insert a new one */
+ ret = btrfs_del_item(trans, dev_root, path);
+ if (ret != 0) {
+ printk(KERN_WARNING "btrfs: delete too small dev_stats item for device %s failed %d!\n",
+ device->name, ret);
+ goto out;
+ }
+ ret = 1;
+ }
+
+ if (ret == 1) {
+ /* need to insert a new item */
+ btrfs_release_path(path);
+ ret = btrfs_insert_empty_item(trans, dev_root, path,
+ &key, sizeof(*ptr));
+ if (ret < 0) {
+ printk(KERN_WARNING "btrfs: insert dev_stats item for device %s failed %d!\n",
+ device->name, ret);
+ goto out;
+ }
+ }
+
+ eb = path->nodes[0];
+ ptr = btrfs_item_ptr(eb, path->slots[0], struct btrfs_dev_stats_item);
+ for (i = 0; i < BTRFS_DEV_STAT_VALUES_MAX; i++)
+ btrfs_set_dev_stats_value(eb, ptr, i,
+ btrfs_dev_stat_read(device, i));
+ btrfs_mark_buffer_dirty(eb);
+
+out:
+ btrfs_free_path(path);
+ return ret;
+}
+
+/*
+ * called from commit_transaction. Writes all changed device stats to disk.
+ */
+int btrfs_run_dev_stats(struct btrfs_trans_handle *trans,
+ struct btrfs_fs_info *fs_info)
+{
+ struct btrfs_root *dev_root = fs_info->dev_root;
+ struct btrfs_fs_devices *fs_devices = fs_info->fs_devices;
+ struct btrfs_device *device;
+ int ret = 0;
+
+ mutex_lock(&fs_devices->device_list_mutex);
+ list_for_each_entry(device, &fs_devices->devices, dev_list) {
+ if (!device->dev_stats_valid || !device->dev_stats_dirty)
+ continue;
+
+ ret = update_dev_stat_item(trans, dev_root, device);
+ if (!ret)
+ device->dev_stats_dirty = 0;
+ }
+ mutex_unlock(&fs_devices->device_list_mutex);
+
+ return ret;
+}
+
+void btrfs_dev_stat_inc_and_print(struct btrfs_device *dev, int index)
+{
+ btrfs_dev_stat_inc(dev, index);
+ btrfs_dev_stat_print_on_error(dev);
+}
+
+void btrfs_dev_stat_print_on_error(struct btrfs_device *dev)
+{
+ if (!dev->dev_stats_valid)
+ return;
+ printk_ratelimited(KERN_ERR
+ "btrfs: bdev %s errs: wr %u, rd %u, flush %u, corrupt %u, gen %u\n",
+ dev->name,
+ btrfs_dev_stat_read(dev, BTRFS_DEV_STAT_WRITE_ERRS),
+ btrfs_dev_stat_read(dev, BTRFS_DEV_STAT_READ_ERRS),
+ btrfs_dev_stat_read(dev, BTRFS_DEV_STAT_FLUSH_ERRS),
+ btrfs_dev_stat_read(dev,
+ BTRFS_DEV_STAT_CORRUPTION_ERRS),
+ btrfs_dev_stat_read(dev,
+ BTRFS_DEV_STAT_GENERATION_ERRS));
+}
+
+static void btrfs_dev_stat_print_on_load(struct btrfs_device *dev)
+{
+ printk(KERN_INFO "btrfs: bdev %s errs: wr %u, rd %u, flush %u, corrupt %u, gen %u\n",
+ dev->name,
+ btrfs_dev_stat_read(dev, BTRFS_DEV_STAT_WRITE_ERRS),
+ btrfs_dev_stat_read(dev, BTRFS_DEV_STAT_READ_ERRS),
+ btrfs_dev_stat_read(dev, BTRFS_DEV_STAT_FLUSH_ERRS),
+ btrfs_dev_stat_read(dev, BTRFS_DEV_STAT_CORRUPTION_ERRS),
+ btrfs_dev_stat_read(dev, BTRFS_DEV_STAT_GENERATION_ERRS));
+}
+
+int btrfs_get_dev_stats(struct btrfs_root *root,
+ struct btrfs_ioctl_get_dev_stats *stats,
+ int reset_after_read)
+{
+ struct btrfs_device *dev;
+ struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices;
+ int i;
+
+ mutex_lock(&fs_devices->device_list_mutex);
+ dev = btrfs_find_device(root, stats->devid, NULL, NULL);
+ mutex_unlock(&fs_devices->device_list_mutex);
+
+ if (!dev) {
+ printk(KERN_WARNING
+ "btrfs: get dev_stats failed, device not found\n");
+ return -ENODEV;
+ } else if (!dev->dev_stats_valid) {
+ printk(KERN_WARNING
+ "btrfs: get dev_stats failed, not yet valid\n");
+ return -ENODEV;
+ } else if (reset_after_read) {
+ for (i = 0; i < BTRFS_DEV_STAT_VALUES_MAX; i++) {
+ if (stats->nr_items > i)
+ stats->values[i] =
+ btrfs_dev_stat_read_and_reset(dev, i);
+ else
+ btrfs_dev_stat_reset(dev, i);
+ }
+ } else {
+ for (i = 0; i < BTRFS_DEV_STAT_VALUES_MAX; i++)
+ if (stats->nr_items > i)
+ stats->values[i] = btrfs_dev_stat_read(dev, i);
+ }
+ if (stats->nr_items > BTRFS_DEV_STAT_VALUES_MAX)
+ stats->nr_items = BTRFS_DEV_STAT_VALUES_MAX;
+ return 0;
+}
#include <linux/bio.h>
#include <linux/sort.h>
#include "async-thread.h"
+#include "ioctl.h"
#define BTRFS_STRIPE_LEN (64 * 1024)
struct completion flush_wait;
int nobarriers;
+ /* disk I/O failure stats. For detailed description refer to
+ * enum btrfs_dev_stat_values in ioctl.h */
+ int dev_stats_valid;
+ int dev_stats_dirty; /* counters need to be written to disk */
+ atomic_t dev_stat_values[BTRFS_DEV_STAT_VALUES_MAX];
};
struct btrfs_fs_devices {
int btrfs_chunk_readonly(struct btrfs_root *root, u64 chunk_offset);
int find_free_dev_extent(struct btrfs_device *device, u64 num_bytes,
u64 *start, u64 *max_avail);
+struct btrfs_device *btrfs_find_device_for_logical(struct btrfs_root *root,
+ u64 logical, int mirror_num);
+void btrfs_dev_stat_print_on_error(struct btrfs_device *device);
+void btrfs_dev_stat_inc_and_print(struct btrfs_device *dev, int index);
+int btrfs_get_dev_stats(struct btrfs_root *root,
+ struct btrfs_ioctl_get_dev_stats *stats,
+ int reset_after_read);
+int btrfs_init_dev_stats(struct btrfs_fs_info *fs_info);
+int btrfs_run_dev_stats(struct btrfs_trans_handle *trans,
+ struct btrfs_fs_info *fs_info);
+
+static inline void btrfs_dev_stat_inc(struct btrfs_device *dev,
+ int index)
+{
+ atomic_inc(dev->dev_stat_values + index);
+ dev->dev_stats_dirty = 1;
+}
+
+static inline int btrfs_dev_stat_read(struct btrfs_device *dev,
+ int index)
+{
+ return atomic_read(dev->dev_stat_values + index);
+}
+
+static inline int btrfs_dev_stat_read_and_reset(struct btrfs_device *dev,
+ int index)
+{
+ int ret;
+
+ ret = atomic_xchg(dev->dev_stat_values + index, 0);
+ dev->dev_stats_dirty = 1;
+ return ret;
+}
+
+static inline void btrfs_dev_stat_set(struct btrfs_device *dev,
+ int index, unsigned long val)
+{
+ atomic_set(dev->dev_stat_values + index, val);
+ dev->dev_stats_dirty = 1;
+}
+
+static inline void btrfs_dev_stat_reset(struct btrfs_device *dev,
+ int index)
+{
+ btrfs_dev_stat_set(dev, index, 0);
+}
#endif
if (ret)
goto out;
+ inode_inc_iversion(inode);
inode->i_ctime = CURRENT_TIME;
ret = btrfs_update_inode(trans, root, inode);
BUG_ON(ret);
/*
* Buffer-head allocation
*/
-static struct kmem_cache *bh_cachep;
+static struct kmem_cache *bh_cachep __read_mostly;
/*
* Once the number of bh's in the machine exceeds this level, we start
u32 parent_name_hash;
} __attribute__ ((packed));
-static int ceph_encode_fh(struct dentry *dentry, u32 *rawfh, int *max_len,
- int connectable)
+/*
+ * The presence of @parent_inode here tells us whether NFS wants a
+ * connectable file handle. However, we want to make a connectionable
+ * file handle unconditionally so that the MDS gets as much of a hint
+ * as possible. That means we only use @parent_dentry to indicate
+ * whether nfsd wants a connectable fh, and whether we should indicate
+ * failure from a too-small @max_len.
+ */
+static int ceph_encode_fh(struct inode *inode, u32 *rawfh, int *max_len,
+ struct inode *parent_inode)
{
int type;
struct ceph_nfs_fh *fh = (void *)rawfh;
struct ceph_nfs_confh *cfh = (void *)rawfh;
- struct dentry *parent;
- struct inode *inode = dentry->d_inode;
int connected_handle_length = sizeof(*cfh)/4;
int handle_length = sizeof(*fh)/4;
+ struct dentry *dentry = d_find_alias(inode);
+ struct dentry *parent;
/* don't re-export snaps */
if (ceph_snap(inode) != CEPH_NOSNAP)
return -EINVAL;
- spin_lock(&dentry->d_lock);
- parent = dentry->d_parent;
- if (*max_len >= connected_handle_length) {
+ /* if we found an alias, generate a connectable fh */
+ if (*max_len >= connected_handle_length && dentry) {
dout("encode_fh %p connectable\n", dentry);
- cfh->ino = ceph_ino(dentry->d_inode);
+ spin_lock(&dentry->d_lock);
+ parent = dentry->d_parent;
+ cfh->ino = ceph_ino(inode);
cfh->parent_ino = ceph_ino(parent->d_inode);
cfh->parent_name_hash = ceph_dentry_hash(parent->d_inode,
dentry);
*max_len = connected_handle_length;
type = 2;
+ spin_unlock(&dentry->d_lock);
} else if (*max_len >= handle_length) {
- if (connectable) {
+ if (parent_inode) {
+ /* nfsd wants connectable */
*max_len = connected_handle_length;
type = 255;
} else {
dout("encode_fh %p\n", dentry);
- fh->ino = ceph_ino(dentry->d_inode);
+ fh->ino = ceph_ino(inode);
*max_len = handle_length;
type = 1;
}
*max_len = handle_length;
type = 255;
}
- spin_unlock(&dentry->d_lock);
return type;
}
req->r_fmode = ceph_flags_to_mode(flags);
req->r_args.open.flags = cpu_to_le32(flags);
req->r_args.open.mode = cpu_to_le32(create_mode);
- req->r_args.open.preferred = cpu_to_le32(-1);
out:
return req;
}
l.stripe_count = ceph_file_layout_stripe_count(ci->i_layout);
l.object_size = ceph_file_layout_object_size(ci->i_layout);
l.data_pool = le32_to_cpu(ci->i_layout.fl_pg_pool);
- l.preferred_osd =
- (s32)le32_to_cpu(ci->i_layout.fl_pg_preferred);
+ l.preferred_osd = (s32)-1;
if (copy_to_user(arg, &l, sizeof(l)))
return -EFAULT;
}
return err;
}
+static long __validate_layout(struct ceph_mds_client *mdsc,
+ struct ceph_ioctl_layout *l)
+{
+ int i, err;
+
+ /* validate striping parameters */
+ if ((l->object_size & ~PAGE_MASK) ||
+ (l->stripe_unit & ~PAGE_MASK) ||
+ ((unsigned)l->object_size % (unsigned)l->stripe_unit))
+ return -EINVAL;
+
+ /* make sure it's a valid data pool */
+ mutex_lock(&mdsc->mutex);
+ err = -EINVAL;
+ for (i = 0; i < mdsc->mdsmap->m_num_data_pg_pools; i++)
+ if (mdsc->mdsmap->m_data_pg_pools[i] == l->data_pool) {
+ err = 0;
+ break;
+ }
+ mutex_unlock(&mdsc->mutex);
+ if (err)
+ return err;
+
+ return 0;
+}
+
static long ceph_ioctl_set_layout(struct file *file, void __user *arg)
{
struct inode *inode = file->f_dentry->d_inode;
struct ceph_ioctl_layout l;
struct ceph_inode_info *ci = ceph_inode(file->f_dentry->d_inode);
struct ceph_ioctl_layout nl;
- int err, i;
+ int err;
if (copy_from_user(&l, arg, sizeof(l)))
return -EFAULT;
/* validate changed params against current layout */
err = ceph_do_getattr(file->f_dentry->d_inode, CEPH_STAT_CAP_LAYOUT);
- if (!err) {
- nl.stripe_unit = ceph_file_layout_su(ci->i_layout);
- nl.stripe_count = ceph_file_layout_stripe_count(ci->i_layout);
- nl.object_size = ceph_file_layout_object_size(ci->i_layout);
- nl.data_pool = le32_to_cpu(ci->i_layout.fl_pg_pool);
- nl.preferred_osd =
- (s32)le32_to_cpu(ci->i_layout.fl_pg_preferred);
- } else
+ if (err)
return err;
+ memset(&nl, 0, sizeof(nl));
if (l.stripe_count)
nl.stripe_count = l.stripe_count;
+ else
+ nl.stripe_count = ceph_file_layout_stripe_count(ci->i_layout);
if (l.stripe_unit)
nl.stripe_unit = l.stripe_unit;
+ else
+ nl.stripe_unit = ceph_file_layout_su(ci->i_layout);
if (l.object_size)
nl.object_size = l.object_size;
+ else
+ nl.object_size = ceph_file_layout_object_size(ci->i_layout);
if (l.data_pool)
nl.data_pool = l.data_pool;
- if (l.preferred_osd)
- nl.preferred_osd = l.preferred_osd;
+ else
+ nl.data_pool = ceph_file_layout_pg_pool(ci->i_layout);
- if ((nl.object_size & ~PAGE_MASK) ||
- (nl.stripe_unit & ~PAGE_MASK) ||
- ((unsigned)nl.object_size % (unsigned)nl.stripe_unit))
- return -EINVAL;
+ /* this is obsolete, and always -1 */
+ nl.preferred_osd = le64_to_cpu(-1);
- /* make sure it's a valid data pool */
- if (l.data_pool > 0) {
- mutex_lock(&mdsc->mutex);
- err = -EINVAL;
- for (i = 0; i < mdsc->mdsmap->m_num_data_pg_pools; i++)
- if (mdsc->mdsmap->m_data_pg_pools[i] == l.data_pool) {
- err = 0;
- break;
- }
- mutex_unlock(&mdsc->mutex);
- if (err)
- return err;
- }
+ err = __validate_layout(mdsc, &nl);
+ if (err)
+ return err;
req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_SETLAYOUT,
USE_AUTH_MDS);
req->r_args.setlayout.layout.fl_object_size =
cpu_to_le32(l.object_size);
req->r_args.setlayout.layout.fl_pg_pool = cpu_to_le32(l.data_pool);
- req->r_args.setlayout.layout.fl_pg_preferred =
- cpu_to_le32(l.preferred_osd);
parent_inode = ceph_get_dentry_parent_inode(file->f_dentry);
err = ceph_mdsc_do_request(mdsc, parent_inode, req);
struct inode *inode = file->f_dentry->d_inode;
struct ceph_mds_request *req;
struct ceph_ioctl_layout l;
- int err, i;
+ int err;
struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
/* copy and validate */
if (copy_from_user(&l, arg, sizeof(l)))
return -EFAULT;
- if ((l.object_size & ~PAGE_MASK) ||
- (l.stripe_unit & ~PAGE_MASK) ||
- !l.stripe_unit ||
- (l.object_size &&
- (unsigned)l.object_size % (unsigned)l.stripe_unit))
- return -EINVAL;
-
- /* make sure it's a valid data pool */
- if (l.data_pool > 0) {
- mutex_lock(&mdsc->mutex);
- err = -EINVAL;
- for (i = 0; i < mdsc->mdsmap->m_num_data_pg_pools; i++)
- if (mdsc->mdsmap->m_data_pg_pools[i] == l.data_pool) {
- err = 0;
- break;
- }
- mutex_unlock(&mdsc->mutex);
- if (err)
- return err;
- }
+ err = __validate_layout(mdsc, &l);
+ if (err)
+ return err;
req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_SETDIRLAYOUT,
USE_AUTH_MDS);
cpu_to_le32(l.object_size);
req->r_args.setlayout.layout.fl_pg_pool =
cpu_to_le32(l.data_pool);
- req->r_args.setlayout.layout.fl_pg_preferred =
- cpu_to_le32(l.preferred_osd);
err = ceph_mdsc_do_request(mdsc, inode, req);
ceph_mdsc_put_request(req);
struct ceph_ioctl_layout {
__u64 stripe_unit, stripe_count, object_size;
__u64 data_pool;
+
+ /* obsolete. new values ignored, always return -1 */
__s64 preferred_osd;
};
dout("mdsc put_session %p %d -> %d\n", s,
atomic_read(&s->s_ref), atomic_read(&s->s_ref)-1);
if (atomic_dec_and_test(&s->s_ref)) {
- if (s->s_authorizer)
+ if (s->s_auth.authorizer)
s->s_mdsc->fsc->client->monc.auth->ops->destroy_authorizer(
s->s_mdsc->fsc->client->monc.auth,
- s->s_authorizer);
+ s->s_auth.authorizer);
kfree(s);
}
}
/*
* authentication
*/
-static int get_authorizer(struct ceph_connection *con,
- void **buf, int *len, int *proto,
- void **reply_buf, int *reply_len, int force_new)
+
+/*
+ * Note: returned pointer is the address of a structure that's
+ * managed separately. Caller must *not* attempt to free it.
+ */
+static struct ceph_auth_handshake *get_authorizer(struct ceph_connection *con,
+ int *proto, int force_new)
{
struct ceph_mds_session *s = con->private;
struct ceph_mds_client *mdsc = s->s_mdsc;
struct ceph_auth_client *ac = mdsc->fsc->client->monc.auth;
- int ret = 0;
-
- if (force_new && s->s_authorizer) {
- ac->ops->destroy_authorizer(ac, s->s_authorizer);
- s->s_authorizer = NULL;
- }
- if (s->s_authorizer == NULL) {
- if (ac->ops->create_authorizer) {
- ret = ac->ops->create_authorizer(
- ac, CEPH_ENTITY_TYPE_MDS,
- &s->s_authorizer,
- &s->s_authorizer_buf,
- &s->s_authorizer_buf_len,
- &s->s_authorizer_reply_buf,
- &s->s_authorizer_reply_buf_len);
- if (ret)
- return ret;
- }
- }
+ struct ceph_auth_handshake *auth = &s->s_auth;
+ if (force_new && auth->authorizer) {
+ if (ac->ops && ac->ops->destroy_authorizer)
+ ac->ops->destroy_authorizer(ac, auth->authorizer);
+ auth->authorizer = NULL;
+ }
+ if (!auth->authorizer && ac->ops && ac->ops->create_authorizer) {
+ int ret = ac->ops->create_authorizer(ac, CEPH_ENTITY_TYPE_MDS,
+ auth);
+ if (ret)
+ return ERR_PTR(ret);
+ }
*proto = ac->protocol;
- *buf = s->s_authorizer_buf;
- *len = s->s_authorizer_buf_len;
- *reply_buf = s->s_authorizer_reply_buf;
- *reply_len = s->s_authorizer_reply_buf_len;
- return 0;
+
+ return auth;
}
struct ceph_mds_client *mdsc = s->s_mdsc;
struct ceph_auth_client *ac = mdsc->fsc->client->monc.auth;
- return ac->ops->verify_authorizer_reply(ac, s->s_authorizer, len);
+ return ac->ops->verify_authorizer_reply(ac, s->s_auth.authorizer, len);
}
static int invalidate_authorizer(struct ceph_connection *con)
#include <linux/ceph/types.h>
#include <linux/ceph/messenger.h>
#include <linux/ceph/mdsmap.h>
+#include <linux/ceph/auth.h>
/*
* Some lock dependencies:
struct ceph_connection s_con;
- struct ceph_authorizer *s_authorizer;
- void *s_authorizer_buf, *s_authorizer_reply_buf;
- size_t s_authorizer_buf_len, s_authorizer_reply_buf_len;
+ struct ceph_auth_handshake s_auth;
/* protected by s_gen_ttl_lock */
spinlock_t s_gen_ttl_lock;
/* alloc new snap context */
err = -ENOMEM;
- if (num > (ULONG_MAX - sizeof(*snapc)) / sizeof(u64))
+ if (num > (SIZE_MAX - sizeof(*snapc)) / sizeof(u64))
goto fail;
snapc = kzalloc(sizeof(*snapc) + num*sizeof(u64), GFP_NOFS);
if (!snapc)
(unsigned long long)ceph_file_layout_su(ci->i_layout),
(unsigned long long)ceph_file_layout_stripe_count(ci->i_layout),
(unsigned long long)ceph_file_layout_object_size(ci->i_layout));
-
- if (ceph_file_layout_pg_preferred(ci->i_layout) >= 0) {
- val += ret;
- size -= ret;
- ret += snprintf(val, size, "preferred_osd=%lld\n",
- (unsigned long long)ceph_file_layout_pg_preferred(
- ci->i_layout));
- }
-
return ret;
}
depends on CIFS && EXPERIMENTAL && BROKEN
help
Allows NFS server to export a CIFS mounted share (nfsd over cifs)
+
+config CIFS_SMB2
+ bool "SMB2 network file system support (EXPERIMENTAL)"
+ depends on EXPERIMENTAL && INET && BROKEN
+ select NLS
+ select KEYS
+ select FSCACHE
+ select DNS_RESOLVER
+
+ help
+ This enables experimental support for the SMB2 (Server Message Block
+ version 2) protocol. The SMB2 protocol is the successor to the
+ popular CIFS and SMB network file sharing protocols. SMB2 is the
+ native file sharing mechanism for recent versions of Windows
+ operating systems (since Vista). SMB2 enablement will eventually
+ allow users better performance, security and features, than would be
+ possible with cifs. Note that smb2 mount options also are simpler
+ (compared to cifs) due to protocol improvements.
+
+ Unless you are a developer or tester, say N.
cifs-y := cifsfs.o cifssmb.o cifs_debug.o connect.o dir.o file.o inode.o \
link.o misc.o netmisc.o smbencrypt.o transport.o asn1.o \
cifs_unicode.o nterr.o xattr.o cifsencrypt.o \
- readdir.o ioctl.o sess.o export.o
+ readdir.o ioctl.o sess.o export.o smb1ops.o
cifs-$(CONFIG_CIFS_ACL) += cifsacl.o
cifs-$(CONFIG_CIFS_DFS_UPCALL) += dns_resolve.o cifs_dfs_ref.o
cifs-$(CONFIG_CIFS_FSCACHE) += fscache.o cache.o
+
+cifs-$(CONFIG_CIFS_SMB2) += smb2ops.o
in the kernel configuration.
Configuration pseudo-files:
-MultiuserMount If set to one, more than one CIFS session to
- the same server ip address can be established
- if more than one uid accesses the same mount
- point and if the uids user/password mapping
- information is available. (default is 0)
PacketSigningEnabled If set to one, cifs packet signing is enabled
and will be used if the server requires
it. If set to two, cifs packet signing is
}
}
-#ifdef CONFIG_CIFS_DEBUG2
void cifs_dump_detail(void *buf)
{
+#ifdef CONFIG_CIFS_DEBUG2
struct smb_hdr *smb = (struct smb_hdr *)buf;
cERROR(1, "Cmd: %d Err: 0x%x Flags: 0x%x Flgs2: 0x%x Mid: %d Pid: %d",
smb->Command, smb->Status.CifsError,
smb->Flags, smb->Flags2, smb->Mid, smb->Pid);
cERROR(1, "smb buf %p len %d", smb, smbCalcSize(smb));
+#endif /* CONFIG_CIFS_DEBUG2 */
}
void cifs_dump_mids(struct TCP_Server_Info *server)
{
+#ifdef CONFIG_CIFS_DEBUG2
struct list_head *tmp;
struct mid_q_entry *mid_entry;
}
}
spin_unlock(&GlobalMid_Lock);
-}
#endif /* CONFIG_CIFS_DEBUG2 */
+}
#ifdef CONFIG_PROC_FS
static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
static const struct file_operations cifsFYI_proc_fops;
static const struct file_operations cifs_lookup_cache_proc_fops;
static const struct file_operations traceSMB_proc_fops;
-static const struct file_operations cifs_multiuser_mount_proc_fops;
static const struct file_operations cifs_security_flags_proc_fops;
static const struct file_operations cifs_linux_ext_proc_fops;
proc_create("traceSMB", 0, proc_fs_cifs, &traceSMB_proc_fops);
proc_create("LinuxExtensionsEnabled", 0, proc_fs_cifs,
&cifs_linux_ext_proc_fops);
- proc_create("MultiuserMount", 0, proc_fs_cifs,
- &cifs_multiuser_mount_proc_fops);
proc_create("SecurityFlags", 0, proc_fs_cifs,
&cifs_security_flags_proc_fops);
proc_create("LookupCacheEnabled", 0, proc_fs_cifs,
#ifdef CONFIG_CIFS_STATS
remove_proc_entry("Stats", proc_fs_cifs);
#endif
- remove_proc_entry("MultiuserMount", proc_fs_cifs);
remove_proc_entry("SecurityFlags", proc_fs_cifs);
remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs);
remove_proc_entry("LookupCacheEnabled", proc_fs_cifs);
.write = traceSMB_proc_write,
};
-static int cifs_multiuser_mount_proc_show(struct seq_file *m, void *v)
-{
- seq_printf(m, "%d\n", multiuser_mount);
- return 0;
-}
-
-static int cifs_multiuser_mount_proc_open(struct inode *inode, struct file *fh)
-{
- return single_open(fh, cifs_multiuser_mount_proc_show, NULL);
-}
-
-static ssize_t cifs_multiuser_mount_proc_write(struct file *file,
- const char __user *buffer, size_t count, loff_t *ppos)
-{
- char c;
- int rc;
- static bool warned;
-
- rc = get_user(c, buffer);
- if (rc)
- return rc;
- if (c == '0' || c == 'n' || c == 'N')
- multiuser_mount = 0;
- else if (c == '1' || c == 'y' || c == 'Y') {
- multiuser_mount = 1;
- if (!warned) {
- warned = true;
- printk(KERN_WARNING "CIFS VFS: The legacy multiuser "
- "mount code is scheduled to be deprecated in "
- "3.5. Please switch to using the multiuser "
- "mount option.");
- }
- }
-
- return count;
-}
-
-static const struct file_operations cifs_multiuser_mount_proc_fops = {
- .owner = THIS_MODULE,
- .open = cifs_multiuser_mount_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .write = cifs_multiuser_mount_proc_write,
-};
-
static int cifs_security_flags_proc_show(struct seq_file *m, void *v)
{
seq_printf(m, "0x%x\n", global_secflags);
#define _H_CIFS_DEBUG
void cifs_dump_mem(char *label, void *data, int length);
-#ifdef CONFIG_CIFS_DEBUG2
-#define DBG2 2
void cifs_dump_detail(void *);
void cifs_dump_mids(struct TCP_Server_Info *);
+#ifdef CONFIG_CIFS_DEBUG2
+#define DBG2 2
#else
#define DBG2 0
#endif
bool enable_oplocks = true;
unsigned int linuxExtEnabled = 1;
unsigned int lookupCacheEnabled = 1;
-unsigned int multiuser_mount = 0;
unsigned int global_secflags = CIFSSEC_DEF;
/* unsigned int ntlmv2_support = 0; */
unsigned int sign_CIFS_PDUs = 1;
goto out_no_root;
}
- /* do that *after* d_alloc_root() - we want NULL ->d_op for root here */
+ /* do that *after* d_make_root() - we want NULL ->d_op for root here */
if (cifs_sb_master_tcon(cifs_sb)->nocase)
sb->s_d_op = &cifs_ci_dentry_ops;
else
seq_printf(s, "i");
}
+static void
+cifs_show_cache_flavor(struct seq_file *s, struct cifs_sb_info *cifs_sb)
+{
+ seq_printf(s, ",cache=");
+
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_STRICT_IO)
+ seq_printf(s, "strict");
+ else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO)
+ seq_printf(s, "none");
+ else
+ seq_printf(s, "loose");
+}
+
/*
* cifs_show_options() is for displaying mount options in /proc/mounts.
* Not all settable options are displayed but most of the important
struct sockaddr *srcaddr;
srcaddr = (struct sockaddr *)&tcon->ses->server->srcaddr;
+ seq_printf(s, ",vers=%s", tcon->ses->server->vals->version_string);
cifs_show_security(s, tcon->ses->server);
+ cifs_show_cache_flavor(s, cifs_sb);
seq_printf(s, ",unc=%s", tcon->treeName);
seq_printf(s, ",rwpidforward");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL)
seq_printf(s, ",forcemand");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO)
- seq_printf(s, ",directio");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
seq_printf(s, ",nouser_xattr");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR)
seq_printf(s, ",nostrictsync");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM)
seq_printf(s, ",noperm");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_STRICT_IO)
- seq_printf(s, ",strictcache");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_BACKUPUID)
seq_printf(s, ",backupuid=%u", cifs_sb->mnt_backupuid);
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_BACKUPGID)
struct cifsInodeInfo *cifsi = inode;
inode_init_once(&cifsi->vfs_inode);
- INIT_LIST_HEAD(&cifsi->llist);
mutex_init(&cifsi->lock_mutex);
}
#define CIFS_MIN_RCV_POOL 4
+#define MAX_REOPEN_ATT 5 /* these many maximum attempts to reopen a file */
/*
* default attribute cache timeout (jiffies)
*/
*****************************************************************
*/
+enum smb_version {
+ Smb_1 = 1,
+ Smb_21,
+};
+
+struct mid_q_entry;
+struct TCP_Server_Info;
+struct cifsFileInfo;
+struct cifs_ses;
+
+struct smb_version_operations {
+ int (*send_cancel)(struct TCP_Server_Info *, void *,
+ struct mid_q_entry *);
+ bool (*compare_fids)(struct cifsFileInfo *, struct cifsFileInfo *);
+ /* setup request: allocate mid, sign message */
+ int (*setup_request)(struct cifs_ses *, struct kvec *, unsigned int,
+ struct mid_q_entry **);
+ /* check response: verify signature, map error */
+ int (*check_receive)(struct mid_q_entry *, struct TCP_Server_Info *,
+ bool);
+ void (*add_credits)(struct TCP_Server_Info *, const unsigned int);
+ void (*set_credits)(struct TCP_Server_Info *, const int);
+ int * (*get_credits_field)(struct TCP_Server_Info *);
+ /* data offset from read response message */
+ unsigned int (*read_data_offset)(char *);
+ /* data length from read response message */
+ unsigned int (*read_data_length)(char *);
+ /* map smb to linux error */
+ int (*map_error)(char *, bool);
+ /* find mid corresponding to the response message */
+ struct mid_q_entry * (*find_mid)(struct TCP_Server_Info *, char *);
+ void (*dump_detail)(void *);
+ /* verify the message */
+ int (*check_message)(char *, unsigned int);
+ bool (*is_oplock_break)(char *, struct TCP_Server_Info *);
+};
+
+struct smb_version_values {
+ char *version_string;
+ __u32 large_lock_type;
+ __u32 exclusive_lock_type;
+ __u32 shared_lock_type;
+ __u32 unlock_lock_type;
+ size_t header_size;
+ size_t max_header_size;
+ size_t read_rsp_size;
+};
+
+#define HEADER_SIZE(server) (server->vals->header_size)
+#define MAX_HEADER_SIZE(server) (server->vals->max_header_size)
+
struct smb_vol {
char *username;
char *password;
bool sockopt_tcp_nodelay:1;
unsigned short int port;
unsigned long actimeo; /* attribute cache timeout (jiffies) */
+ struct smb_version_operations *ops;
+ struct smb_version_values *vals;
char *prepath;
struct sockaddr_storage srcaddr; /* allow binding to a local IP */
struct nls_table *local_nls;
int srv_count; /* reference counter */
/* 15 character server name + 0x20 16th byte indicating type = srv */
char server_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL];
+ struct smb_version_operations *ops;
+ struct smb_version_values *vals;
enum statusEnum tcpStatus; /* what we think the status is */
char *hostname; /* hostname portion of UNC string */
struct socket *ssocket;
return num;
}
-static inline int*
-get_credits_field(struct TCP_Server_Info *server)
-{
- /*
- * This will change to switch statement when we reserve slots for echos
- * and oplock breaks.
- */
- return &server->credits;
-}
-
static inline bool
has_credits(struct TCP_Server_Info *server, int *credits)
{
return num > 0;
}
-static inline size_t
-header_size(void)
+static inline void
+add_credits(struct TCP_Server_Info *server, const unsigned int add)
{
- return sizeof(struct smb_hdr);
+ server->ops->add_credits(server, add);
}
-static inline size_t
-max_header_size(void)
+static inline void
+set_credits(struct TCP_Server_Info *server, const int val)
{
- return MAX_CIFS_HDR_SIZE;
+ server->ops->set_credits(server, val);
}
/*
__u64 offset;
__u64 length;
__u32 pid;
- __u8 type;
- __u16 netfid;
+ __u32 type;
};
/*
struct cifsFileInfo {
struct list_head tlist; /* pointer to next fid owned by tcon */
struct list_head flist; /* next fid (file instance) for this inode */
+ struct list_head llist; /*
+ * brlocks held by this fid, protected by
+ * lock_mutex from cifsInodeInfo structure
+ */
unsigned int uid; /* allows finding which FileInfo structure */
__u32 pid; /* process id who opened file */
__u16 netfid; /* file id from remote */
*/
struct cifsInodeInfo {
- struct list_head llist; /* brlocks for this inode */
bool can_cache_brlcks;
- struct mutex lock_mutex; /* protect two fields above */
+ struct mutex lock_mutex; /*
+ * protect the field above and llist
+ * from every cifsFileInfo structure
+ * from openFileList
+ */
/* BB add in lists for dirty pages i.e. write caching info for oplock */
struct list_head openFileList;
__u32 cifsAttrs; /* e.g. DOS archive bit, sparse, compressed, system */
#endif
-struct mid_q_entry;
/*
* This is the prototype for the mid receive function. This function is for
GLOBAL_EXTERN atomic_t midCount;
/* Misc globals */
-GLOBAL_EXTERN unsigned int multiuser_mount; /* if enabled allows new sessions
- to be established on existing mount if we
- have the uid/password or Kerberos credential
- or equivalent for current user */
-/* enable or disable oplocks */
-GLOBAL_EXTERN bool enable_oplocks;
+GLOBAL_EXTERN bool enable_oplocks; /* enable or disable oplocks */
GLOBAL_EXTERN unsigned int lookupCacheEnabled;
GLOBAL_EXTERN unsigned int global_secflags; /* if on, session setup sent
with more secure ntlmssp2 challenge/resp */
extern const struct slow_work_ops cifs_oplock_break_ops;
extern struct workqueue_struct *cifsiod_wq;
+/* Operations for different SMB versions */
+#define SMB1_VERSION_STRING "1.0"
+extern struct smb_version_operations smb1_operations;
+extern struct smb_version_values smb1_values;
+#define SMB21_VERSION_STRING "2.1"
+extern struct smb_version_operations smb21_operations;
+extern struct smb_version_values smb21_values;
#endif /* _CIFS_GLOB_H */
int * /* bytes returned */ , const int long_op);
extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
char *in_buf, int flags);
+extern int cifs_setup_request(struct cifs_ses *, struct kvec *, unsigned int,
+ struct mid_q_entry **);
extern int cifs_check_receive(struct mid_q_entry *mid,
struct TCP_Server_Info *server, bool log_error);
extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
struct smb_hdr *in_buf ,
struct smb_hdr *out_buf,
int *bytes_returned);
-extern void cifs_add_credits(struct TCP_Server_Info *server,
- const unsigned int add);
-extern void cifs_set_credits(struct TCP_Server_Info *server, const int val);
extern int checkSMB(char *buf, unsigned int length);
extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
extern bool backup_cred(struct cifs_sb_info *);
extern int CIFSFindFirst(const int xid, struct cifs_tcon *tcon,
const char *searchName, const struct nls_table *nls_codepage,
- __u16 *searchHandle, struct cifs_search_info *psrch_inf,
+ __u16 *searchHandle, __u16 search_flags,
+ struct cifs_search_info *psrch_inf,
int map, const char dirsep);
extern int CIFSFindNext(const int xid, struct cifs_tcon *tcon,
- __u16 searchHandle, struct cifs_search_info *psrch_inf);
+ __u16 searchHandle, __u16 search_flags,
+ struct cifs_search_info *psrch_inf);
extern int CIFSFindClose(const int, struct cifs_tcon *tcon,
const __u16 search_handle);
/* asynchronous read support */
struct cifs_readdata {
+ struct kref refcount;
+ struct list_head list;
+ struct completion done;
struct cifsFileInfo *cfile;
struct address_space *mapping;
__u64 offset;
int result;
struct list_head pages;
struct work_struct work;
+ int (*marshal_iov) (struct cifs_readdata *rdata,
+ unsigned int remaining);
unsigned int nr_iov;
struct kvec iov[1];
};
-struct cifs_readdata *cifs_readdata_alloc(unsigned int nr_pages);
-void cifs_readdata_free(struct cifs_readdata *rdata);
+void cifs_readdata_release(struct kref *refcount);
int cifs_async_readv(struct cifs_readdata *rdata);
/* asynchronous write support */
#endif /* CIFS_POSIX */
/* Forward declarations */
-static void cifs_readv_complete(struct work_struct *work);
/* Mark as invalid, all open files on tree connections since they
were closed when session to server was lost */
server->maxReq = min_t(unsigned int,
le16_to_cpu(rsp->MaxMpxCount),
cifs_max_pending);
- cifs_set_credits(server, server->maxReq);
+ set_credits(server, server->maxReq);
server->maxBuf = le16_to_cpu(rsp->MaxBufSize);
server->max_vcs = le16_to_cpu(rsp->MaxNumberVcs);
/* even though we do not use raw we might as well set this
little endian */
server->maxReq = min_t(unsigned int, le16_to_cpu(pSMBr->MaxMpxCount),
cifs_max_pending);
- cifs_set_credits(server, server->maxReq);
+ set_credits(server, server->maxReq);
/* probably no need to store and check maxvcs */
server->maxBuf = le32_to_cpu(pSMBr->MaxBufferSize);
server->max_rw = le32_to_cpu(pSMBr->MaxRawSize);
struct TCP_Server_Info *server = mid->callback_data;
DeleteMidQEntry(mid);
- cifs_add_credits(server, 1);
+ add_credits(server, 1);
}
int
return rc;
}
-struct cifs_readdata *
-cifs_readdata_alloc(unsigned int nr_pages)
-{
- struct cifs_readdata *rdata;
-
- /* readdata + 1 kvec for each page */
- rdata = kzalloc(sizeof(*rdata) +
- sizeof(struct kvec) * nr_pages, GFP_KERNEL);
- if (rdata != NULL) {
- INIT_WORK(&rdata->work, cifs_readv_complete);
- INIT_LIST_HEAD(&rdata->pages);
- }
- return rdata;
-}
-
-void
-cifs_readdata_free(struct cifs_readdata *rdata)
-{
- cifsFileInfo_put(rdata->cfile);
- kfree(rdata);
-}
-
/*
* Discard any remaining data in the current SMB. To do this, we borrow the
* current bigbuf.
length = cifs_read_from_socket(server, server->bigbuf,
min_t(unsigned int, remaining,
- CIFSMaxBufSize + max_header_size()));
+ CIFSMaxBufSize + MAX_HEADER_SIZE(server)));
if (length < 0)
return length;
server->total_read += length;
return 0;
}
-static inline size_t
-read_rsp_size(void)
-{
- return sizeof(READ_RSP);
-}
-
-static inline unsigned int
-read_data_offset(char *buf)
-{
- READ_RSP *rsp = (READ_RSP *)buf;
- return le16_to_cpu(rsp->DataOffset);
-}
-
-static inline unsigned int
-read_data_length(char *buf)
-{
- READ_RSP *rsp = (READ_RSP *)buf;
- return (le16_to_cpu(rsp->DataLengthHigh) << 16) +
- le16_to_cpu(rsp->DataLength);
-}
-
static int
cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
{
int length, len;
- unsigned int data_offset, remaining, data_len;
+ unsigned int data_offset, data_len;
struct cifs_readdata *rdata = mid->callback_data;
char *buf = server->smallbuf;
unsigned int buflen = get_rfc1002_length(buf) + 4;
- u64 eof;
- pgoff_t eof_index;
- struct page *page, *tpage;
cFYI(1, "%s: mid=%llu offset=%llu bytes=%u", __func__,
mid->mid, rdata->offset, rdata->bytes);
* can if there's not enough data. At this point, we've read down to
* the Mid.
*/
- len = min_t(unsigned int, buflen, read_rsp_size()) - header_size() + 1;
+ len = min_t(unsigned int, buflen, server->vals->read_rsp_size) -
+ HEADER_SIZE(server) + 1;
- rdata->iov[0].iov_base = buf + header_size() - 1;
+ rdata->iov[0].iov_base = buf + HEADER_SIZE(server) - 1;
rdata->iov[0].iov_len = len;
length = cifs_readv_from_socket(server, rdata->iov, 1, len);
server->total_read += length;
/* Was the SMB read successful? */
- rdata->result = map_smb_to_linux_error(buf, false);
+ rdata->result = server->ops->map_error(buf, false);
if (rdata->result != 0) {
cFYI(1, "%s: server returned error %d", __func__,
rdata->result);
}
/* Is there enough to get to the rest of the READ_RSP header? */
- if (server->total_read < read_rsp_size()) {
+ if (server->total_read < server->vals->read_rsp_size) {
cFYI(1, "%s: server returned short header. got=%u expected=%zu",
- __func__, server->total_read, read_rsp_size());
+ __func__, server->total_read,
+ server->vals->read_rsp_size);
rdata->result = -EIO;
return cifs_readv_discard(server, mid);
}
- data_offset = read_data_offset(buf) + 4;
+ data_offset = server->ops->read_data_offset(buf) + 4;
if (data_offset < server->total_read) {
/*
* win2k8 sometimes sends an offset of 0 when the read
rdata->iov[0].iov_base, rdata->iov[0].iov_len);
/* how much data is in the response? */
- data_len = read_data_length(buf);
+ data_len = server->ops->read_data_length(buf);
if (data_offset + data_len > buflen) {
/* data_len is corrupt -- discard frame */
rdata->result = -EIO;
}
/* marshal up the page array */
- len = 0;
- remaining = data_len;
- rdata->nr_iov = 1;
-
- /* determine the eof that the server (probably) has */
- eof = CIFS_I(rdata->mapping->host)->server_eof;
- eof_index = eof ? (eof - 1) >> PAGE_CACHE_SHIFT : 0;
- cFYI(1, "eof=%llu eof_index=%lu", eof, eof_index);
-
- list_for_each_entry_safe(page, tpage, &rdata->pages, lru) {
- if (remaining >= PAGE_CACHE_SIZE) {
- /* enough data to fill the page */
- rdata->iov[rdata->nr_iov].iov_base = kmap(page);
- rdata->iov[rdata->nr_iov].iov_len = PAGE_CACHE_SIZE;
- cFYI(1, "%u: idx=%lu iov_base=%p iov_len=%zu",
- rdata->nr_iov, page->index,
- rdata->iov[rdata->nr_iov].iov_base,
- rdata->iov[rdata->nr_iov].iov_len);
- ++rdata->nr_iov;
- len += PAGE_CACHE_SIZE;
- remaining -= PAGE_CACHE_SIZE;
- } else if (remaining > 0) {
- /* enough for partial page, fill and zero the rest */
- rdata->iov[rdata->nr_iov].iov_base = kmap(page);
- rdata->iov[rdata->nr_iov].iov_len = remaining;
- cFYI(1, "%u: idx=%lu iov_base=%p iov_len=%zu",
- rdata->nr_iov, page->index,
- rdata->iov[rdata->nr_iov].iov_base,
- rdata->iov[rdata->nr_iov].iov_len);
- memset(rdata->iov[rdata->nr_iov].iov_base + remaining,
- '\0', PAGE_CACHE_SIZE - remaining);
- ++rdata->nr_iov;
- len += remaining;
- remaining = 0;
- } else if (page->index > eof_index) {
- /*
- * The VFS will not try to do readahead past the
- * i_size, but it's possible that we have outstanding
- * writes with gaps in the middle and the i_size hasn't
- * caught up yet. Populate those with zeroed out pages
- * to prevent the VFS from repeatedly attempting to
- * fill them until the writes are flushed.
- */
- zero_user(page, 0, PAGE_CACHE_SIZE);
- list_del(&page->lru);
- lru_cache_add_file(page);
- flush_dcache_page(page);
- SetPageUptodate(page);
- unlock_page(page);
- page_cache_release(page);
- } else {
- /* no need to hold page hostage */
- list_del(&page->lru);
- lru_cache_add_file(page);
- unlock_page(page);
- page_cache_release(page);
- }
- }
+ len = rdata->marshal_iov(rdata, data_len);
+ data_len -= len;
/* issue the read if we have any iovecs left to fill */
if (rdata->nr_iov > 1) {
rdata->bytes = length;
cFYI(1, "total_read=%u buflen=%u remaining=%u", server->total_read,
- buflen, remaining);
+ buflen, data_len);
/* discard anything left over */
if (server->total_read < buflen)
return length;
}
-static void
-cifs_readv_complete(struct work_struct *work)
-{
- struct cifs_readdata *rdata = container_of(work,
- struct cifs_readdata, work);
- struct page *page, *tpage;
-
- list_for_each_entry_safe(page, tpage, &rdata->pages, lru) {
- list_del(&page->lru);
- lru_cache_add_file(page);
-
- if (rdata->result == 0) {
- kunmap(page);
- flush_dcache_page(page);
- SetPageUptodate(page);
- }
-
- unlock_page(page);
-
- if (rdata->result == 0)
- cifs_readpage_to_fscache(rdata->mapping->host, page);
-
- page_cache_release(page);
- }
- cifs_readdata_free(rdata);
-}
-
static void
cifs_readv_callback(struct mid_q_entry *mid)
{
queue_work(cifsiod_wq, &rdata->work);
DeleteMidQEntry(mid);
- cifs_add_credits(server, 1);
+ add_credits(server, 1);
}
/* cifs_async_readv - send an async write, and set up mid to handle result */
rdata->iov[0].iov_base = smb;
rdata->iov[0].iov_len = be32_to_cpu(smb->hdr.smb_buf_length) + 4;
+ kref_get(&rdata->refcount);
rc = cifs_call_async(tcon->ses->server, rdata->iov, 1,
cifs_readv_receive, cifs_readv_callback,
rdata, false);
if (rc == 0)
cifs_stats_inc(&tcon->num_reads);
+ else
+ kref_put(&rdata->refcount, cifs_readdata_release);
cifs_small_buf_release(smb);
return rc;
queue_work(cifsiod_wq, &wdata->work);
DeleteMidQEntry(mid);
- cifs_add_credits(tcon->ses->server, 1);
+ add_credits(tcon->ses->server, 1);
}
/* cifs_async_writev - send an async write, and set up mid to handle result */
CIFSFindFirst(const int xid, struct cifs_tcon *tcon,
const char *searchName,
const struct nls_table *nls_codepage,
- __u16 *pnetfid,
+ __u16 *pnetfid, __u16 search_flags,
struct cifs_search_info *psrch_inf, int remap, const char dirsep)
{
/* level 257 SMB_ */
cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM |
ATTR_DIRECTORY);
pSMB->SearchCount = cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO));
- pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END |
- CIFS_SEARCH_RETURN_RESUME);
+ pSMB->SearchFlags = cpu_to_le16(search_flags);
pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level);
/* BB what should we set StorageType to? Does it matter? BB */
return rc;
}
-int CIFSFindNext(const int xid, struct cifs_tcon *tcon,
- __u16 searchHandle, struct cifs_search_info *psrch_inf)
+int CIFSFindNext(const int xid, struct cifs_tcon *tcon, __u16 searchHandle,
+ __u16 search_flags, struct cifs_search_info *psrch_inf)
{
TRANSACTION2_FNEXT_REQ *pSMB = NULL;
TRANSACTION2_FNEXT_RSP *pSMBr = NULL;
cpu_to_le16(CIFSMaxBufSize / sizeof(FILE_UNIX_INFO));
pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level);
pSMB->ResumeKey = psrch_inf->resume_key;
- pSMB->SearchFlags =
- cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME);
+ pSMB->SearchFlags = cpu_to_le16(search_flags);
name_len = psrch_inf->resume_name_len;
params += name_len;
/*
* fs/cifs/connect.c
*
- * Copyright (C) International Business Machines Corp., 2002,2009
+ * Copyright (C) International Business Machines Corp., 2002,2011
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
Opt_srcaddr, Opt_prefixpath,
Opt_iocharset, Opt_sockopt,
Opt_netbiosname, Opt_servern,
- Opt_ver, Opt_sec,
+ Opt_ver, Opt_vers, Opt_sec, Opt_cache,
/* Mount options to be ignored */
Opt_ignore,
{ Opt_netbiosname, "netbiosname=%s" },
{ Opt_servern, "servern=%s" },
{ Opt_ver, "ver=%s" },
- { Opt_ver, "vers=%s" },
- { Opt_ver, "version=%s" },
+ { Opt_vers, "vers=%s" },
{ Opt_sec, "sec=%s" },
+ { Opt_cache, "cache=%s" },
{ Opt_ignore, "cred" },
{ Opt_ignore, "credentials" },
{ Opt_sec_err, NULL }
};
+/* cache flavors */
+enum {
+ Opt_cache_loose,
+ Opt_cache_strict,
+ Opt_cache_none,
+ Opt_cache_err
+};
+
+static const match_table_t cifs_cacheflavor_tokens = {
+ { Opt_cache_loose, "loose" },
+ { Opt_cache_strict, "strict" },
+ { Opt_cache_none, "none" },
+ { Opt_cache_err, NULL }
+};
+
+static const match_table_t cifs_smb_version_tokens = {
+ { Smb_1, SMB1_VERSION_STRING },
+ { Smb_21, SMB21_VERSION_STRING },
+};
+
static int ip_connect(struct TCP_Server_Info *server);
static int generic_ip_connect(struct TCP_Server_Info *server);
static void tlink_rb_insert(struct rb_root *root, struct tcon_link *new_tlink);
}
} else if (server->large_buf) {
/* we are reusing a dirty large buf, clear its start */
- memset(server->bigbuf, 0, header_size());
+ memset(server->bigbuf, 0, HEADER_SIZE(server));
}
if (!server->smallbuf) {
/* beginning of smb buffer is cleared in our buf_get */
} else {
/* if existing small buf clear beginning */
- memset(server->smallbuf, 0, header_size());
+ memset(server->smallbuf, 0, HEADER_SIZE(server));
}
return true;
return false;
}
-static struct mid_q_entry *
-find_mid(struct TCP_Server_Info *server, char *buffer)
-{
- struct smb_hdr *buf = (struct smb_hdr *)buffer;
- struct mid_q_entry *mid;
-
- spin_lock(&GlobalMid_Lock);
- list_for_each_entry(mid, &server->pending_mid_q, qhead) {
- if (mid->mid == buf->Mid &&
- mid->mid_state == MID_REQUEST_SUBMITTED &&
- le16_to_cpu(mid->command) == buf->Command) {
- spin_unlock(&GlobalMid_Lock);
- return mid;
- }
- }
- spin_unlock(&GlobalMid_Lock);
- return NULL;
-}
-
void
dequeue_mid(struct mid_q_entry *mid, bool malformed)
{
unsigned int pdu_length = get_rfc1002_length(buf);
/* make sure this will fit in a large buffer */
- if (pdu_length > CIFSMaxBufSize + max_header_size() - 4) {
+ if (pdu_length > CIFSMaxBufSize + MAX_HEADER_SIZE(server) - 4) {
cERROR(1, "SMB response too long (%u bytes)",
pdu_length);
cifs_reconnect(server);
}
/* now read the rest */
- length = cifs_read_from_socket(server, buf + header_size() - 1,
- pdu_length - header_size() + 1 + 4);
+ length = cifs_read_from_socket(server, buf + HEADER_SIZE(server) - 1,
+ pdu_length - HEADER_SIZE(server) + 1 + 4);
if (length < 0)
return length;
server->total_read += length;
* 48 bytes is enough to display the header and a little bit
* into the payload for debugging purposes.
*/
- length = checkSMB(buf, server->total_read);
+ length = server->ops->check_message(buf, server->total_read);
if (length != 0)
cifs_dump_mem("Bad SMB: ", buf,
min_t(unsigned int, server->total_read, 48));
continue;
/* make sure we have enough to get to the MID */
- if (pdu_length < header_size() - 1 - 4) {
+ if (pdu_length < HEADER_SIZE(server) - 1 - 4) {
cERROR(1, "SMB response too short (%u bytes)",
pdu_length);
cifs_reconnect(server);
/* read down to the MID */
length = cifs_read_from_socket(server, buf + 4,
- header_size() - 1 - 4);
+ HEADER_SIZE(server) - 1 - 4);
if (length < 0)
continue;
server->total_read += length;
- mid_entry = find_mid(server, buf);
+ mid_entry = server->ops->find_mid(server, buf);
if (!mid_entry || !mid_entry->receive)
length = standard_receive3(server, mid_entry);
if (mid_entry != NULL) {
if (!mid_entry->multiRsp || mid_entry->multiEnd)
mid_entry->callback(mid_entry);
- } else if (!is_valid_oplock_break(buf, server)) {
+ } else if (!server->ops->is_oplock_break(buf, server)) {
cERROR(1, "No task to wake, unknown frame received! "
"NumMids %d", atomic_read(&midCount));
- cifs_dump_mem("Received Data is: ", buf, header_size());
+ cifs_dump_mem("Received Data is: ", buf,
+ HEADER_SIZE(server));
#ifdef CONFIG_CIFS_DEBUG2
- cifs_dump_detail(buf);
+ server->ops->dump_detail(buf);
cifs_dump_mids(server);
#endif /* CIFS_DEBUG2 */
return 0;
}
+static int
+cifs_parse_cache_flavor(char *value, struct smb_vol *vol)
+{
+ substring_t args[MAX_OPT_ARGS];
+
+ switch (match_token(value, cifs_cacheflavor_tokens, args)) {
+ case Opt_cache_loose:
+ vol->direct_io = false;
+ vol->strict_io = false;
+ break;
+ case Opt_cache_strict:
+ vol->direct_io = false;
+ vol->strict_io = true;
+ break;
+ case Opt_cache_none:
+ vol->direct_io = true;
+ vol->strict_io = false;
+ break;
+ default:
+ cERROR(1, "bad cache= option: %s", value);
+ return 1;
+ }
+ return 0;
+}
+
+static int
+cifs_parse_smb_version(char *value, struct smb_vol *vol)
+{
+ substring_t args[MAX_OPT_ARGS];
+
+ switch (match_token(value, cifs_smb_version_tokens, args)) {
+ case Smb_1:
+ vol->ops = &smb1_operations;
+ vol->vals = &smb1_values;
+ break;
+#ifdef CONFIG_CIFS_SMB2
+ case Smb_21:
+ vol->ops = &smb21_operations;
+ vol->vals = &smb21_values;
+ break;
+#endif
+ default:
+ cERROR(1, "Unknown vers= option specified: %s", value);
+ return 1;
+ }
+ return 0;
+}
+
static int
cifs_parse_mount_options(const char *mountdata, const char *devname,
struct smb_vol *vol)
char *string = NULL;
char *tmp_end, *value;
char delim;
+ bool cache_specified = false;
+ static bool cache_warned = false;
separator[0] = ',';
separator[1] = 0;
vol->actimeo = CIFS_DEF_ACTIMEO;
+ /* FIXME: add autonegotiation -- for now, SMB1 is default */
+ vol->ops = &smb1_operations;
+ vol->vals = &smb1_values;
+
if (!mountdata)
goto cifs_parse_mount_err;
vol->seal = 1;
break;
case Opt_direct:
- vol->direct_io = 1;
+ cache_specified = true;
+ vol->direct_io = true;
+ vol->strict_io = false;
+ cERROR(1, "The \"directio\" option will be removed in "
+ "3.7. Please switch to the \"cache=none\" "
+ "option.");
break;
case Opt_strictcache:
- vol->strict_io = 1;
+ cache_specified = true;
+ vol->direct_io = false;
+ vol->strict_io = true;
+ cERROR(1, "The \"strictcache\" option will be removed "
+ "in 3.7. Please switch to the \"cache=strict\" "
+ "option.");
break;
case Opt_noac:
printk(KERN_WARNING "CIFS: Mount option noac not "
if (string == NULL)
goto out_nomem;
- if (strnicmp(string, "cifs", 4) == 0 ||
- strnicmp(string, "1", 1) == 0) {
+ if (strnicmp(string, "1", 1) == 0) {
/* This is the default */
break;
}
printk(KERN_WARNING "CIFS: Invalid version"
" specified\n");
goto cifs_parse_mount_err;
+ case Opt_vers:
+ string = match_strdup(args);
+ if (string == NULL)
+ goto out_nomem;
+
+ if (cifs_parse_smb_version(string, vol) != 0)
+ goto cifs_parse_mount_err;
+ break;
case Opt_sec:
string = match_strdup(args);
if (string == NULL)
if (cifs_parse_security_flavors(string, vol) != 0)
goto cifs_parse_mount_err;
break;
+ case Opt_cache:
+ cache_specified = true;
+ string = match_strdup(args);
+ if (string == NULL)
+ goto out_nomem;
+
+ if (cifs_parse_cache_flavor(string, vol) != 0)
+ goto cifs_parse_mount_err;
+ break;
default:
/*
* An option we don't recognize. Save it off for later
printk(KERN_NOTICE "CIFS: ignoring forcegid mount option "
"specified with no gid= option.\n");
+ /* FIXME: remove this block in 3.7 */
+ if (!cache_specified && !cache_warned) {
+ cache_warned = true;
+ printk(KERN_NOTICE "CIFS: no cache= option specified, using "
+ "\"cache=loose\". This default will change "
+ "to \"cache=strict\" in 3.7.\n");
+ }
+
kfree(mountdata_copy);
return 0;
static int match_server(struct TCP_Server_Info *server, struct sockaddr *addr,
struct smb_vol *vol)
{
+ if ((server->vals != vol->vals) || (server->ops != vol->ops))
+ return 0;
+
if (!net_eq(cifs_net_ns(server), current->nsproxy->net_ns))
return 0;
goto out_err;
}
+ tcp_ses->ops = volume_info->ops;
+ tcp_ses->vals = volume_info->vals;
cifs_set_net_ns(tcp_ses, get_net(current->nsproxy->net_ns));
tcp_ses->hostname = extract_hostname(volume_info->UNC);
if (IS_ERR(tcp_ses->hostname)) {
if (cifs_parse_mount_options(mount_data, devname, volume_info))
return -EINVAL;
+
if (volume_info->nullauth) {
cFYI(1, "Anonymous login");
kfree(volume_info->username);
if (server->maxBuf != 0)
return 0;
- cifs_set_credits(server, 1);
+ set_credits(server, 1);
rc = CIFSSMBNegotiate(xid, ses);
if (rc == -EAGAIN) {
/* retry only once on 1st time connection */
- cifs_set_credits(server, 1);
+ set_credits(server, 1);
rc = CIFSSMBNegotiate(xid, ses);
if (rc == -EAGAIN)
rc = -EHOSTDOWN;
pCifsFile->tlink = cifs_get_tlink(tlink);
mutex_init(&pCifsFile->fh_mutex);
INIT_WORK(&pCifsFile->oplock_break, cifs_oplock_break);
+ INIT_LIST_HEAD(&pCifsFile->llist);
spin_lock(&cifs_file_list_lock);
list_add(&pCifsFile->tlist, &(tlink_tcon(tlink)->openFileList));
* is closed anyway.
*/
mutex_lock(&cifsi->lock_mutex);
- list_for_each_entry_safe(li, tmp, &cifsi->llist, llist) {
- if (li->netfid != cifs_file->netfid)
- continue;
+ list_for_each_entry_safe(li, tmp, &cifs_file->llist, llist) {
list_del(&li->llist);
cifs_del_lock_waiters(li);
kfree(li);
}
static struct cifsLockInfo *
-cifs_lock_init(__u64 offset, __u64 length, __u8 type, __u16 netfid)
+cifs_lock_init(__u64 offset, __u64 length, __u8 type)
{
struct cifsLockInfo *lock =
kmalloc(sizeof(struct cifsLockInfo), GFP_KERNEL);
lock->offset = offset;
lock->length = length;
lock->type = type;
- lock->netfid = netfid;
lock->pid = current->tgid;
INIT_LIST_HEAD(&lock->blist);
init_waitqueue_head(&lock->block_q);
}
static bool
-__cifs_find_lock_conflict(struct cifsInodeInfo *cinode, __u64 offset,
- __u64 length, __u8 type, __u16 netfid,
- struct cifsLockInfo **conf_lock)
+cifs_find_fid_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
+ __u64 length, __u8 type, struct cifsFileInfo *cur,
+ struct cifsLockInfo **conf_lock)
{
- struct cifsLockInfo *li, *tmp;
+ struct cifsLockInfo *li;
+ struct TCP_Server_Info *server = tlink_tcon(cfile->tlink)->ses->server;
- list_for_each_entry_safe(li, tmp, &cinode->llist, llist) {
+ list_for_each_entry(li, &cfile->llist, llist) {
if (offset + length <= li->offset ||
offset >= li->offset + li->length)
continue;
- else if ((type & LOCKING_ANDX_SHARED_LOCK) &&
- ((netfid == li->netfid && current->tgid == li->pid) ||
- type == li->type))
+ else if ((type & server->vals->shared_lock_type) &&
+ ((server->ops->compare_fids(cur, cfile) &&
+ current->tgid == li->pid) || type == li->type))
continue;
else {
*conf_lock = li;
}
static bool
-cifs_find_lock_conflict(struct cifsInodeInfo *cinode, struct cifsLockInfo *lock,
- struct cifsLockInfo **conf_lock)
+cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset, __u64 length,
+ __u8 type, struct cifsLockInfo **conf_lock)
{
- return __cifs_find_lock_conflict(cinode, lock->offset, lock->length,
- lock->type, lock->netfid, conf_lock);
+ bool rc = false;
+ struct cifsFileInfo *fid, *tmp;
+ struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
+
+ spin_lock(&cifs_file_list_lock);
+ list_for_each_entry_safe(fid, tmp, &cinode->openFileList, flist) {
+ rc = cifs_find_fid_lock_conflict(fid, offset, length, type,
+ cfile, conf_lock);
+ if (rc)
+ break;
+ }
+ spin_unlock(&cifs_file_list_lock);
+
+ return rc;
}
/*
* the server or 1 otherwise.
*/
static int
-cifs_lock_test(struct cifsInodeInfo *cinode, __u64 offset, __u64 length,
- __u8 type, __u16 netfid, struct file_lock *flock)
+cifs_lock_test(struct cifsFileInfo *cfile, __u64 offset, __u64 length,
+ __u8 type, struct file_lock *flock)
{
int rc = 0;
struct cifsLockInfo *conf_lock;
+ struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
+ struct TCP_Server_Info *server = tlink_tcon(cfile->tlink)->ses->server;
bool exist;
mutex_lock(&cinode->lock_mutex);
- exist = __cifs_find_lock_conflict(cinode, offset, length, type, netfid,
- &conf_lock);
+ exist = cifs_find_lock_conflict(cfile, offset, length, type,
+ &conf_lock);
if (exist) {
flock->fl_start = conf_lock->offset;
flock->fl_end = conf_lock->offset + conf_lock->length - 1;
flock->fl_pid = conf_lock->pid;
- if (conf_lock->type & LOCKING_ANDX_SHARED_LOCK)
+ if (conf_lock->type & server->vals->shared_lock_type)
flock->fl_type = F_RDLCK;
else
flock->fl_type = F_WRLCK;
}
static void
-cifs_lock_add(struct cifsInodeInfo *cinode, struct cifsLockInfo *lock)
+cifs_lock_add(struct cifsFileInfo *cfile, struct cifsLockInfo *lock)
{
+ struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
mutex_lock(&cinode->lock_mutex);
- list_add_tail(&lock->llist, &cinode->llist);
+ list_add_tail(&lock->llist, &cfile->llist);
mutex_unlock(&cinode->lock_mutex);
}
* 3) -EACCESS, if there is a lock that prevents us and wait is false.
*/
static int
-cifs_lock_add_if(struct cifsInodeInfo *cinode, struct cifsLockInfo *lock,
+cifs_lock_add_if(struct cifsFileInfo *cfile, struct cifsLockInfo *lock,
bool wait)
{
struct cifsLockInfo *conf_lock;
+ struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
bool exist;
int rc = 0;
exist = false;
mutex_lock(&cinode->lock_mutex);
- exist = cifs_find_lock_conflict(cinode, lock, &conf_lock);
+ exist = cifs_find_lock_conflict(cfile, lock->offset, lock->length,
+ lock->type, &conf_lock);
if (!exist && cinode->can_cache_brlcks) {
- list_add_tail(&lock->llist, &cinode->llist);
+ list_add_tail(&lock->llist, &cfile->llist);
mutex_unlock(&cinode->lock_mutex);
return rc;
}
for (i = 0; i < 2; i++) {
cur = buf;
num = 0;
- list_for_each_entry_safe(li, tmp, &cinode->llist, llist) {
+ list_for_each_entry_safe(li, tmp, &cfile->llist, llist) {
if (li->type != types[i])
continue;
cur->Pid = cpu_to_le16(li->pid);
cur->OffsetHigh = cpu_to_le32((u32)(li->offset>>32));
if (++num == max_num) {
stored_rc = cifs_lockv(xid, tcon, cfile->netfid,
- li->type, 0, num, buf);
+ (__u8)li->type, 0, num,
+ buf);
if (stored_rc)
rc = stored_rc;
cur = buf;
if (num) {
stored_rc = cifs_lockv(xid, tcon, cfile->netfid,
- types[i], 0, num, buf);
+ (__u8)types[i], 0, num, buf);
if (stored_rc)
rc = stored_rc;
}
}
static void
-cifs_read_flock(struct file_lock *flock, __u8 *type, int *lock, int *unlock,
- bool *wait_flag)
+cifs_read_flock(struct file_lock *flock, __u32 *type, int *lock, int *unlock,
+ bool *wait_flag, struct TCP_Server_Info *server)
{
if (flock->fl_flags & FL_POSIX)
cFYI(1, "Posix");
(~(FL_POSIX | FL_FLOCK | FL_SLEEP | FL_ACCESS | FL_LEASE)))
cFYI(1, "Unknown lock flags 0x%x", flock->fl_flags);
- *type = LOCKING_ANDX_LARGE_FILES;
+ *type = server->vals->large_lock_type;
if (flock->fl_type == F_WRLCK) {
cFYI(1, "F_WRLCK ");
+ *type |= server->vals->exclusive_lock_type;
*lock = 1;
} else if (flock->fl_type == F_UNLCK) {
cFYI(1, "F_UNLCK");
+ *type |= server->vals->unlock_lock_type;
*unlock = 1;
/* Check if unlock includes more than one lock range */
} else if (flock->fl_type == F_RDLCK) {
cFYI(1, "F_RDLCK");
- *type |= LOCKING_ANDX_SHARED_LOCK;
+ *type |= server->vals->shared_lock_type;
*lock = 1;
} else if (flock->fl_type == F_EXLCK) {
cFYI(1, "F_EXLCK");
+ *type |= server->vals->exclusive_lock_type;
*lock = 1;
} else if (flock->fl_type == F_SHLCK) {
cFYI(1, "F_SHLCK");
- *type |= LOCKING_ANDX_SHARED_LOCK;
+ *type |= server->vals->shared_lock_type;
*lock = 1;
} else
cFYI(1, "Unknown type of lock");
}
static int
-cifs_getlk(struct file *file, struct file_lock *flock, __u8 type,
+cifs_mandatory_lock(int xid, struct cifsFileInfo *cfile, __u64 offset,
+ __u64 length, __u32 type, int lock, int unlock, bool wait)
+{
+ return CIFSSMBLock(xid, tlink_tcon(cfile->tlink), cfile->netfid,
+ current->tgid, length, offset, unlock, lock,
+ (__u8)type, wait, 0);
+}
+
+static int
+cifs_getlk(struct file *file, struct file_lock *flock, __u32 type,
bool wait_flag, bool posix_lck, int xid)
{
int rc = 0;
__u64 length = 1 + flock->fl_end - flock->fl_start;
struct cifsFileInfo *cfile = (struct cifsFileInfo *)file->private_data;
struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
- struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
+ struct TCP_Server_Info *server = tcon->ses->server;
__u16 netfid = cfile->netfid;
if (posix_lck) {
if (!rc)
return rc;
- if (type & LOCKING_ANDX_SHARED_LOCK)
+ if (type & server->vals->shared_lock_type)
posix_lock_type = CIFS_RDLCK;
else
posix_lock_type = CIFS_WRLCK;
return rc;
}
- rc = cifs_lock_test(cinode, flock->fl_start, length, type, netfid,
- flock);
+ rc = cifs_lock_test(cfile, flock->fl_start, length, type, flock);
if (!rc)
return rc;
/* BB we could chain these into one lock request BB */
- rc = CIFSSMBLock(xid, tcon, netfid, current->tgid, length,
- flock->fl_start, 0, 1, type, 0, 0);
+ rc = cifs_mandatory_lock(xid, cfile, flock->fl_start, length, type,
+ 1, 0, false);
if (rc == 0) {
- rc = CIFSSMBLock(xid, tcon, netfid, current->tgid,
- length, flock->fl_start, 1, 0,
- type, 0, 0);
+ rc = cifs_mandatory_lock(xid, cfile, flock->fl_start, length,
+ type, 0, 1, false);
flock->fl_type = F_UNLCK;
if (rc != 0)
cERROR(1, "Error unlocking previously locked "
- "range %d during test of lock", rc);
+ "range %d during test of lock", rc);
return 0;
}
- if (type & LOCKING_ANDX_SHARED_LOCK) {
+ if (type & server->vals->shared_lock_type) {
flock->fl_type = F_WRLCK;
return 0;
}
- rc = CIFSSMBLock(xid, tcon, netfid, current->tgid, length,
- flock->fl_start, 0, 1,
- type | LOCKING_ANDX_SHARED_LOCK, 0, 0);
+ rc = cifs_mandatory_lock(xid, cfile, flock->fl_start, length,
+ type | server->vals->shared_lock_type, 1, 0,
+ false);
if (rc == 0) {
- rc = CIFSSMBLock(xid, tcon, netfid, current->tgid,
- length, flock->fl_start, 1, 0,
- type | LOCKING_ANDX_SHARED_LOCK,
- 0, 0);
+ rc = cifs_mandatory_lock(xid, cfile, flock->fl_start, length,
+ type | server->vals->shared_lock_type,
+ 0, 1, false);
flock->fl_type = F_RDLCK;
if (rc != 0)
cERROR(1, "Error unlocking previously locked "
for (i = 0; i < 2; i++) {
cur = buf;
num = 0;
- list_for_each_entry_safe(li, tmp, &cinode->llist, llist) {
+ list_for_each_entry_safe(li, tmp, &cfile->llist, llist) {
if (flock->fl_start > li->offset ||
(flock->fl_start + length) <
(li->offset + li->length))
continue;
if (current->tgid != li->pid)
continue;
- if (cfile->netfid != li->netfid)
- continue;
if (types[i] != li->type)
continue;
if (!cinode->can_cache_brlcks) {
cpu_to_le32((u32)(li->offset>>32));
/*
* We need to save a lock here to let us add
- * it again to the inode list if the unlock
+ * it again to the file's list if the unlock
* range request fails on the server.
*/
list_move(&li->llist, &tmp_llist);
* We failed on the unlock range
* request - add all locks from
* the tmp list to the head of
- * the inode list.
+ * the file's list.
*/
cifs_move_llist(&tmp_llist,
- &cinode->llist);
+ &cfile->llist);
rc = stored_rc;
} else
/*
} else {
/*
* We can cache brlock requests - simply remove
- * a lock from the inode list.
+ * a lock from the file's list.
*/
list_del(&li->llist);
cifs_del_lock_waiters(li);
stored_rc = cifs_lockv(xid, tcon, cfile->netfid,
types[i], num, 0, buf);
if (stored_rc) {
- cifs_move_llist(&tmp_llist, &cinode->llist);
+ cifs_move_llist(&tmp_llist, &cfile->llist);
rc = stored_rc;
} else
cifs_free_llist(&tmp_llist);
}
static int
-cifs_setlk(struct file *file, struct file_lock *flock, __u8 type,
+cifs_setlk(struct file *file, struct file_lock *flock, __u32 type,
bool wait_flag, bool posix_lck, int lock, int unlock, int xid)
{
int rc = 0;
__u64 length = 1 + flock->fl_end - flock->fl_start;
struct cifsFileInfo *cfile = (struct cifsFileInfo *)file->private_data;
struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
- struct cifsInodeInfo *cinode = CIFS_I(file->f_path.dentry->d_inode);
+ struct TCP_Server_Info *server = tcon->ses->server;
__u16 netfid = cfile->netfid;
if (posix_lck) {
if (!rc || rc < 0)
return rc;
- if (type & LOCKING_ANDX_SHARED_LOCK)
+ if (type & server->vals->shared_lock_type)
posix_lock_type = CIFS_RDLCK;
else
posix_lock_type = CIFS_WRLCK;
if (lock) {
struct cifsLockInfo *lock;
- lock = cifs_lock_init(flock->fl_start, length, type, netfid);
+ lock = cifs_lock_init(flock->fl_start, length, type);
if (!lock)
return -ENOMEM;
- rc = cifs_lock_add_if(cinode, lock, wait_flag);
+ rc = cifs_lock_add_if(cfile, lock, wait_flag);
if (rc < 0)
kfree(lock);
if (rc <= 0)
goto out;
- rc = CIFSSMBLock(xid, tcon, netfid, current->tgid, length,
- flock->fl_start, 0, 1, type, wait_flag, 0);
+ rc = cifs_mandatory_lock(xid, cfile, flock->fl_start, length,
+ type, 1, 0, wait_flag);
if (rc) {
kfree(lock);
goto out;
}
- cifs_lock_add(cinode, lock);
+ cifs_lock_add(cfile, lock);
} else if (unlock)
rc = cifs_unlock_range(cfile, flock, xid);
struct cifsInodeInfo *cinode;
struct cifsFileInfo *cfile;
__u16 netfid;
- __u8 type;
+ __u32 type;
rc = -EACCES;
xid = GetXid();
"end: %lld", cmd, flock->fl_flags, flock->fl_type,
flock->fl_start, flock->fl_end);
- cifs_read_flock(flock, &type, &lock, &unlock, &wait_flag);
-
- cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
cfile = (struct cifsFileInfo *)file->private_data;
tcon = tlink_tcon(cfile->tlink);
+
+ cifs_read_flock(flock, &type, &lock, &unlock, &wait_flag,
+ tcon->ses->server);
+
+ cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
netfid = cfile->netfid;
cinode = CIFS_I(file->f_path.dentry->d_inode);
struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *cifs_inode,
bool fsuid_only)
{
- struct cifsFileInfo *open_file;
+ struct cifsFileInfo *open_file, *inv_file = NULL;
struct cifs_sb_info *cifs_sb;
bool any_available = false;
int rc;
+ unsigned int refind = 0;
/* Having a null inode here (because mapping->host was set to zero by
the VFS or MM) should not happen but we had reports of on oops (due to
spin_lock(&cifs_file_list_lock);
refind_writable:
+ if (refind > MAX_REOPEN_ATT) {
+ spin_unlock(&cifs_file_list_lock);
+ return NULL;
+ }
list_for_each_entry(open_file, &cifs_inode->openFileList, flist) {
if (!any_available && open_file->pid != current->tgid)
continue;
if (fsuid_only && open_file->uid != current_fsuid())
continue;
if (OPEN_FMODE(open_file->f_flags) & FMODE_WRITE) {
- cifsFileInfo_get(open_file);
-
if (!open_file->invalidHandle) {
/* found a good writable file */
+ cifsFileInfo_get(open_file);
spin_unlock(&cifs_file_list_lock);
return open_file;
+ } else {
+ if (!inv_file)
+ inv_file = open_file;
}
-
- spin_unlock(&cifs_file_list_lock);
-
- /* Had to unlock since following call can block */
- rc = cifs_reopen_file(open_file, false);
- if (!rc)
- return open_file;
-
- /* if it fails, try another handle if possible */
- cFYI(1, "wp failed on reopen file");
- cifsFileInfo_put(open_file);
-
- spin_lock(&cifs_file_list_lock);
-
- /* else we simply continue to the next entry. Thus
- we do not loop on reopen errors. If we
- can not reopen the file, for example if we
- reconnected to a server with another client
- racing to delete or lock the file we would not
- make progress if we restarted before the beginning
- of the loop here. */
}
}
/* couldn't find useable FH with same pid, try any available */
any_available = true;
goto refind_writable;
}
+
+ if (inv_file) {
+ any_available = false;
+ cifsFileInfo_get(inv_file);
+ }
+
spin_unlock(&cifs_file_list_lock);
+
+ if (inv_file) {
+ rc = cifs_reopen_file(inv_file, false);
+ if (!rc)
+ return inv_file;
+ else {
+ spin_lock(&cifs_file_list_lock);
+ list_move_tail(&inv_file->flist,
+ &cifs_inode->openFileList);
+ spin_unlock(&cifs_file_list_lock);
+ cifsFileInfo_put(inv_file);
+ spin_lock(&cifs_file_list_lock);
+ ++refind;
+ goto refind_writable;
+ }
+ }
+
return NULL;
}
return cifs_user_writev(iocb, iov, nr_segs, pos);
}
+static struct cifs_readdata *
+cifs_readdata_alloc(unsigned int nr_vecs, work_func_t complete)
+{
+ struct cifs_readdata *rdata;
+
+ rdata = kzalloc(sizeof(*rdata) +
+ sizeof(struct kvec) * nr_vecs, GFP_KERNEL);
+ if (rdata != NULL) {
+ kref_init(&rdata->refcount);
+ INIT_LIST_HEAD(&rdata->list);
+ init_completion(&rdata->done);
+ INIT_WORK(&rdata->work, complete);
+ INIT_LIST_HEAD(&rdata->pages);
+ }
+ return rdata;
+}
+
+void
+cifs_readdata_release(struct kref *refcount)
+{
+ struct cifs_readdata *rdata = container_of(refcount,
+ struct cifs_readdata, refcount);
+
+ if (rdata->cfile)
+ cifsFileInfo_put(rdata->cfile);
+
+ kfree(rdata);
+}
+
+static int
+cifs_read_allocate_pages(struct list_head *list, unsigned int npages)
+{
+ int rc = 0;
+ struct page *page, *tpage;
+ unsigned int i;
+
+ for (i = 0; i < npages; i++) {
+ page = alloc_page(GFP_KERNEL|__GFP_HIGHMEM);
+ if (!page) {
+ rc = -ENOMEM;
+ break;
+ }
+ list_add(&page->lru, list);
+ }
+
+ if (rc) {
+ list_for_each_entry_safe(page, tpage, list, lru) {
+ list_del(&page->lru);
+ put_page(page);
+ }
+ }
+ return rc;
+}
+
+static void
+cifs_uncached_readdata_release(struct kref *refcount)
+{
+ struct page *page, *tpage;
+ struct cifs_readdata *rdata = container_of(refcount,
+ struct cifs_readdata, refcount);
+
+ list_for_each_entry_safe(page, tpage, &rdata->pages, lru) {
+ list_del(&page->lru);
+ put_page(page);
+ }
+ cifs_readdata_release(refcount);
+}
+
+static int
+cifs_retry_async_readv(struct cifs_readdata *rdata)
+{
+ int rc;
+
+ do {
+ if (rdata->cfile->invalidHandle) {
+ rc = cifs_reopen_file(rdata->cfile, true);
+ if (rc != 0)
+ continue;
+ }
+ rc = cifs_async_readv(rdata);
+ } while (rc == -EAGAIN);
+
+ return rc;
+}
+
+/**
+ * cifs_readdata_to_iov - copy data from pages in response to an iovec
+ * @rdata: the readdata response with list of pages holding data
+ * @iov: vector in which we should copy the data
+ * @nr_segs: number of segments in vector
+ * @offset: offset into file of the first iovec
+ * @copied: used to return the amount of data copied to the iov
+ *
+ * This function copies data from a list of pages in a readdata response into
+ * an array of iovecs. It will first calculate where the data should go
+ * based on the info in the readdata and then copy the data into that spot.
+ */
+static ssize_t
+cifs_readdata_to_iov(struct cifs_readdata *rdata, const struct iovec *iov,
+ unsigned long nr_segs, loff_t offset, ssize_t *copied)
+{
+ int rc = 0;
+ struct iov_iter ii;
+ size_t pos = rdata->offset - offset;
+ struct page *page, *tpage;
+ ssize_t remaining = rdata->bytes;
+ unsigned char *pdata;
+
+ /* set up iov_iter and advance to the correct offset */
+ iov_iter_init(&ii, iov, nr_segs, iov_length(iov, nr_segs), 0);
+ iov_iter_advance(&ii, pos);
+
+ *copied = 0;
+ list_for_each_entry_safe(page, tpage, &rdata->pages, lru) {
+ ssize_t copy;
+
+ /* copy a whole page or whatever's left */
+ copy = min_t(ssize_t, remaining, PAGE_SIZE);
+
+ /* ...but limit it to whatever space is left in the iov */
+ copy = min_t(ssize_t, copy, iov_iter_count(&ii));
+
+ /* go while there's data to be copied and no errors */
+ if (copy && !rc) {
+ pdata = kmap(page);
+ rc = memcpy_toiovecend(ii.iov, pdata, ii.iov_offset,
+ (int)copy);
+ kunmap(page);
+ if (!rc) {
+ *copied += copy;
+ remaining -= copy;
+ iov_iter_advance(&ii, copy);
+ }
+ }
+
+ list_del(&page->lru);
+ put_page(page);
+ }
+
+ return rc;
+}
+
+static void
+cifs_uncached_readv_complete(struct work_struct *work)
+{
+ struct cifs_readdata *rdata = container_of(work,
+ struct cifs_readdata, work);
+
+ /* if the result is non-zero then the pages weren't kmapped */
+ if (rdata->result == 0) {
+ struct page *page;
+
+ list_for_each_entry(page, &rdata->pages, lru)
+ kunmap(page);
+ }
+
+ complete(&rdata->done);
+ kref_put(&rdata->refcount, cifs_uncached_readdata_release);
+}
+
+static int
+cifs_uncached_read_marshal_iov(struct cifs_readdata *rdata,
+ unsigned int remaining)
+{
+ int len = 0;
+ struct page *page, *tpage;
+
+ rdata->nr_iov = 1;
+ list_for_each_entry_safe(page, tpage, &rdata->pages, lru) {
+ if (remaining >= PAGE_SIZE) {
+ /* enough data to fill the page */
+ rdata->iov[rdata->nr_iov].iov_base = kmap(page);
+ rdata->iov[rdata->nr_iov].iov_len = PAGE_SIZE;
+ cFYI(1, "%u: idx=%lu iov_base=%p iov_len=%zu",
+ rdata->nr_iov, page->index,
+ rdata->iov[rdata->nr_iov].iov_base,
+ rdata->iov[rdata->nr_iov].iov_len);
+ ++rdata->nr_iov;
+ len += PAGE_SIZE;
+ remaining -= PAGE_SIZE;
+ } else if (remaining > 0) {
+ /* enough for partial page, fill and zero the rest */
+ rdata->iov[rdata->nr_iov].iov_base = kmap(page);
+ rdata->iov[rdata->nr_iov].iov_len = remaining;
+ cFYI(1, "%u: idx=%lu iov_base=%p iov_len=%zu",
+ rdata->nr_iov, page->index,
+ rdata->iov[rdata->nr_iov].iov_base,
+ rdata->iov[rdata->nr_iov].iov_len);
+ memset(rdata->iov[rdata->nr_iov].iov_base + remaining,
+ '\0', PAGE_SIZE - remaining);
+ ++rdata->nr_iov;
+ len += remaining;
+ remaining = 0;
+ } else {
+ /* no need to hold page hostage */
+ list_del(&page->lru);
+ put_page(page);
+ }
+ }
+
+ return len;
+}
+
static ssize_t
cifs_iovec_read(struct file *file, const struct iovec *iov,
unsigned long nr_segs, loff_t *poffset)
{
- int rc;
- int xid;
- ssize_t total_read;
- unsigned int bytes_read = 0;
+ ssize_t rc;
size_t len, cur_len;
- int iov_offset = 0;
+ ssize_t total_read = 0;
+ loff_t offset = *poffset;
+ unsigned int npages;
struct cifs_sb_info *cifs_sb;
- struct cifs_tcon *pTcon;
+ struct cifs_tcon *tcon;
struct cifsFileInfo *open_file;
- struct smb_com_read_rsp *pSMBr;
- struct cifs_io_parms io_parms;
- char *read_data;
- unsigned int rsize;
- __u32 pid;
+ struct cifs_readdata *rdata, *tmp;
+ struct list_head rdata_list;
+ pid_t pid;
if (!nr_segs)
return 0;
if (!len)
return 0;
- xid = GetXid();
+ INIT_LIST_HEAD(&rdata_list);
cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
-
- /* FIXME: set up handlers for larger reads and/or convert to async */
- rsize = min_t(unsigned int, cifs_sb->rsize, CIFSMaxBufSize);
-
open_file = file->private_data;
- pTcon = tlink_tcon(open_file->tlink);
+ tcon = tlink_tcon(open_file->tlink);
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RWPIDFORWARD)
pid = open_file->pid;
if ((file->f_flags & O_ACCMODE) == O_WRONLY)
cFYI(1, "attempting read on write only file instance");
- for (total_read = 0; total_read < len; total_read += bytes_read) {
- cur_len = min_t(const size_t, len - total_read, rsize);
- rc = -EAGAIN;
- read_data = NULL;
+ do {
+ cur_len = min_t(const size_t, len - total_read, cifs_sb->rsize);
+ npages = DIV_ROUND_UP(cur_len, PAGE_SIZE);
- while (rc == -EAGAIN) {
- int buf_type = CIFS_NO_BUFFER;
- if (open_file->invalidHandle) {
- rc = cifs_reopen_file(open_file, true);
- if (rc != 0)
- break;
- }
- io_parms.netfid = open_file->netfid;
- io_parms.pid = pid;
- io_parms.tcon = pTcon;
- io_parms.offset = *poffset;
- io_parms.length = cur_len;
- rc = CIFSSMBRead(xid, &io_parms, &bytes_read,
- &read_data, &buf_type);
- pSMBr = (struct smb_com_read_rsp *)read_data;
- if (read_data) {
- char *data_offset = read_data + 4 +
- le16_to_cpu(pSMBr->DataOffset);
- if (memcpy_toiovecend(iov, data_offset,
- iov_offset, bytes_read))
- rc = -EFAULT;
- if (buf_type == CIFS_SMALL_BUFFER)
- cifs_small_buf_release(read_data);
- else if (buf_type == CIFS_LARGE_BUFFER)
- cifs_buf_release(read_data);
- read_data = NULL;
- iov_offset += bytes_read;
- }
+ /* allocate a readdata struct */
+ rdata = cifs_readdata_alloc(npages,
+ cifs_uncached_readv_complete);
+ if (!rdata) {
+ rc = -ENOMEM;
+ goto error;
}
- if (rc || (bytes_read == 0)) {
- if (total_read) {
- break;
- } else {
- FreeXid(xid);
- return rc;
+ rc = cifs_read_allocate_pages(&rdata->pages, npages);
+ if (rc)
+ goto error;
+
+ rdata->cfile = cifsFileInfo_get(open_file);
+ rdata->offset = offset;
+ rdata->bytes = cur_len;
+ rdata->pid = pid;
+ rdata->marshal_iov = cifs_uncached_read_marshal_iov;
+
+ rc = cifs_retry_async_readv(rdata);
+error:
+ if (rc) {
+ kref_put(&rdata->refcount,
+ cifs_uncached_readdata_release);
+ break;
+ }
+
+ list_add_tail(&rdata->list, &rdata_list);
+ offset += cur_len;
+ len -= cur_len;
+ } while (len > 0);
+
+ /* if at least one read request send succeeded, then reset rc */
+ if (!list_empty(&rdata_list))
+ rc = 0;
+
+ /* the loop below should proceed in the order of increasing offsets */
+restart_loop:
+ list_for_each_entry_safe(rdata, tmp, &rdata_list, list) {
+ if (!rc) {
+ ssize_t copied;
+
+ /* FIXME: freezable sleep too? */
+ rc = wait_for_completion_killable(&rdata->done);
+ if (rc)
+ rc = -EINTR;
+ else if (rdata->result)
+ rc = rdata->result;
+ else {
+ rc = cifs_readdata_to_iov(rdata, iov,
+ nr_segs, *poffset,
+ &copied);
+ total_read += copied;
+ }
+
+ /* resend call if it's a retryable error */
+ if (rc == -EAGAIN) {
+ rc = cifs_retry_async_readv(rdata);
+ goto restart_loop;
}
- } else {
- cifs_stats_bytes_read(pTcon, bytes_read);
- *poffset += bytes_read;
}
+ list_del_init(&rdata->list);
+ kref_put(&rdata->refcount, cifs_uncached_readdata_release);
}
- FreeXid(xid);
- return total_read;
+ cifs_stats_bytes_read(tcon, total_read);
+ *poffset += total_read;
+
+ return total_read ? total_read : rc;
}
ssize_t cifs_user_readv(struct kiocb *iocb, const struct iovec *iov,
return rc;
}
+static void
+cifs_readv_complete(struct work_struct *work)
+{
+ struct cifs_readdata *rdata = container_of(work,
+ struct cifs_readdata, work);
+ struct page *page, *tpage;
+
+ list_for_each_entry_safe(page, tpage, &rdata->pages, lru) {
+ list_del(&page->lru);
+ lru_cache_add_file(page);
+
+ if (rdata->result == 0) {
+ kunmap(page);
+ flush_dcache_page(page);
+ SetPageUptodate(page);
+ }
+
+ unlock_page(page);
+
+ if (rdata->result == 0)
+ cifs_readpage_to_fscache(rdata->mapping->host, page);
+
+ page_cache_release(page);
+ }
+ kref_put(&rdata->refcount, cifs_readdata_release);
+}
+
+static int
+cifs_readpages_marshal_iov(struct cifs_readdata *rdata, unsigned int remaining)
+{
+ int len = 0;
+ struct page *page, *tpage;
+ u64 eof;
+ pgoff_t eof_index;
+
+ /* determine the eof that the server (probably) has */
+ eof = CIFS_I(rdata->mapping->host)->server_eof;
+ eof_index = eof ? (eof - 1) >> PAGE_CACHE_SHIFT : 0;
+ cFYI(1, "eof=%llu eof_index=%lu", eof, eof_index);
+
+ rdata->nr_iov = 1;
+ list_for_each_entry_safe(page, tpage, &rdata->pages, lru) {
+ if (remaining >= PAGE_CACHE_SIZE) {
+ /* enough data to fill the page */
+ rdata->iov[rdata->nr_iov].iov_base = kmap(page);
+ rdata->iov[rdata->nr_iov].iov_len = PAGE_CACHE_SIZE;
+ cFYI(1, "%u: idx=%lu iov_base=%p iov_len=%zu",
+ rdata->nr_iov, page->index,
+ rdata->iov[rdata->nr_iov].iov_base,
+ rdata->iov[rdata->nr_iov].iov_len);
+ ++rdata->nr_iov;
+ len += PAGE_CACHE_SIZE;
+ remaining -= PAGE_CACHE_SIZE;
+ } else if (remaining > 0) {
+ /* enough for partial page, fill and zero the rest */
+ rdata->iov[rdata->nr_iov].iov_base = kmap(page);
+ rdata->iov[rdata->nr_iov].iov_len = remaining;
+ cFYI(1, "%u: idx=%lu iov_base=%p iov_len=%zu",
+ rdata->nr_iov, page->index,
+ rdata->iov[rdata->nr_iov].iov_base,
+ rdata->iov[rdata->nr_iov].iov_len);
+ memset(rdata->iov[rdata->nr_iov].iov_base + remaining,
+ '\0', PAGE_CACHE_SIZE - remaining);
+ ++rdata->nr_iov;
+ len += remaining;
+ remaining = 0;
+ } else if (page->index > eof_index) {
+ /*
+ * The VFS will not try to do readahead past the
+ * i_size, but it's possible that we have outstanding
+ * writes with gaps in the middle and the i_size hasn't
+ * caught up yet. Populate those with zeroed out pages
+ * to prevent the VFS from repeatedly attempting to
+ * fill them until the writes are flushed.
+ */
+ zero_user(page, 0, PAGE_CACHE_SIZE);
+ list_del(&page->lru);
+ lru_cache_add_file(page);
+ flush_dcache_page(page);
+ SetPageUptodate(page);
+ unlock_page(page);
+ page_cache_release(page);
+ } else {
+ /* no need to hold page hostage */
+ list_del(&page->lru);
+ lru_cache_add_file(page);
+ unlock_page(page);
+ page_cache_release(page);
+ }
+ }
+
+ return len;
+}
+
static int cifs_readpages(struct file *file, struct address_space *mapping,
struct list_head *page_list, unsigned num_pages)
{
nr_pages++;
}
- rdata = cifs_readdata_alloc(nr_pages);
+ rdata = cifs_readdata_alloc(nr_pages, cifs_readv_complete);
if (!rdata) {
/* best to give up if we're out of mem */
list_for_each_entry_safe(page, tpage, &tmplist, lru) {
}
spin_lock(&cifs_file_list_lock);
- cifsFileInfo_get(open_file);
spin_unlock(&cifs_file_list_lock);
- rdata->cfile = open_file;
+ rdata->cfile = cifsFileInfo_get(open_file);
rdata->mapping = mapping;
rdata->offset = offset;
rdata->bytes = bytes;
rdata->pid = pid;
+ rdata->marshal_iov = cifs_readpages_marshal_iov;
list_splice_init(&tmplist, &rdata->pages);
- do {
- if (open_file->invalidHandle) {
- rc = cifs_reopen_file(open_file, true);
- if (rc != 0)
- continue;
- }
- rc = cifs_async_readv(rdata);
- } while (rc == -EAGAIN);
-
+ rc = cifs_retry_async_readv(rdata);
if (rc != 0) {
list_for_each_entry_safe(page, tpage, &rdata->pages,
lru) {
unlock_page(page);
page_cache_release(page);
}
- cifs_readdata_free(rdata);
+ kref_put(&rdata->refcount, cifs_readdata_release);
break;
}
+
+ kref_put(&rdata->refcount, cifs_readdata_release);
}
return rc;
cifs_sb = CIFS_SB(inode->i_sb);
switch (command) {
+ static bool warned = false;
case CIFS_IOC_CHECKUMOUNT:
+ if (!warned) {
+ warned = true;
+ cERROR(1, "the CIFS_IOC_CHECKMOUNT ioctl will "
+ "be deprecated in 3.7. Please "
+ "migrate away from the use of "
+ "umount.cifs");
+ }
cFYI(1, "User unmount attempted");
if (cifs_sb->mnt_uid == current_uid())
rc = 0;
const struct cifs_tcon *treeCon, int word_count
/* length of fixed section (word count) in two byte units */)
{
- struct list_head *temp_item;
- struct cifs_ses *ses;
char *temp = (char *) buffer;
memset(temp, 0, 256); /* bigger than MAX_CIFS_HDR_SIZE */
/* Uid is not converted */
buffer->Uid = treeCon->ses->Suid;
buffer->Mid = GetNextMid(treeCon->ses->server);
- if (multiuser_mount != 0) {
- /* For the multiuser case, there are few obvious technically */
- /* possible mechanisms to match the local linux user (uid) */
- /* to a valid remote smb user (smb_uid): */
- /* 1) Query Winbind (or other local pam/nss daemon */
- /* for userid/password/logon_domain or credential */
- /* 2) Query Winbind for uid to sid to username mapping */
- /* and see if we have a matching password for existing*/
- /* session for that user perhas getting password by */
- /* adding a new pam_cifs module that stores passwords */
- /* so that the cifs vfs can get at that for all logged*/
- /* on users */
- /* 3) (Which is the mechanism we have chosen) */
- /* Search through sessions to the same server for a */
- /* a match on the uid that was passed in on mount */
- /* with the current processes uid (or euid?) and use */
- /* that smb uid. If no existing smb session for */
- /* that uid found, use the default smb session ie */
- /* the smb session for the volume mounted which is */
- /* the same as would be used if the multiuser mount */
- /* flag were disabled. */
-
- /* BB Add support for establishing new tCon and SMB Session */
- /* with userid/password pairs found on the smb session */
- /* for other target tcp/ip addresses BB */
- if (current_fsuid() != treeCon->ses->linux_uid) {
- cFYI(1, "Multiuser mode and UID "
- "did not match tcon uid");
- spin_lock(&cifs_tcp_ses_lock);
- list_for_each(temp_item, &treeCon->ses->server->smb_ses_list) {
- ses = list_entry(temp_item, struct cifs_ses, smb_ses_list);
- if (ses->linux_uid == current_fsuid()) {
- if (ses->server == treeCon->ses->server) {
- cFYI(1, "found matching uid substitute right smb_uid");
- buffer->Uid = ses->Suid;
- break;
- } else {
- /* BB eventually call cifs_setup_session here */
- cFYI(1, "local UID found but no smb sess with this server exists");
- }
- }
- }
- spin_unlock(&cifs_tcp_ses_lock);
- }
- }
}
if (treeCon->Flags & SMB_SHARE_IS_IN_DFS)
buffer->Flags2 |= SMBFLG2_DFS;
return false;
}
-
-void
-cifs_add_credits(struct TCP_Server_Info *server, const unsigned int add)
-{
- spin_lock(&server->req_lock);
- server->credits += add;
- server->in_flight--;
- spin_unlock(&server->req_lock);
- wake_up(&server->request_q);
-}
-
-void
-cifs_set_credits(struct TCP_Server_Info *server, const int val)
-{
- spin_lock(&server->req_lock);
- server->credits = val;
- server->oplocks = val > 1 ? enable_oplocks : false;
- spin_unlock(&server->req_lock);
-}
static int initiate_cifs_search(const int xid, struct file *file)
{
+ __u16 search_flags;
int rc = 0;
char *full_path = NULL;
struct cifsFileInfo *cifsFile;
cifsFile->srch_inf.info_level = SMB_FIND_FILE_DIRECTORY_INFO;
}
+ search_flags = CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME;
+ if (backup_cred(cifs_sb))
+ search_flags |= CIFS_SEARCH_BACKUP_SEARCH;
+
rc = CIFSFindFirst(xid, pTcon, full_path, cifs_sb->local_nls,
- &cifsFile->netfid, &cifsFile->srch_inf,
+ &cifsFile->netfid, search_flags, &cifsFile->srch_inf,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR, CIFS_DIR_SEP(cifs_sb));
if (rc == 0)
static int find_cifs_entry(const int xid, struct cifs_tcon *pTcon,
struct file *file, char **ppCurrentEntry, int *num_to_ret)
{
+ __u16 search_flags;
int rc = 0;
int pos_in_buf = 0;
loff_t first_entry_in_buffer;
loff_t index_to_find = file->f_pos;
struct cifsFileInfo *cifsFile = file->private_data;
+ struct cifs_sb_info *cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
/* check if index in the buffer */
if ((cifsFile == NULL) || (ppCurrentEntry == NULL) ||
cifsFile);
}
+ search_flags = CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME;
+ if (backup_cred(cifs_sb))
+ search_flags |= CIFS_SEARCH_BACKUP_SEARCH;
+
while ((index_to_find >= cifsFile->srch_inf.index_of_last_entry) &&
(rc == 0) && !cifsFile->srch_inf.endOfSearch) {
cFYI(1, "calling findnext2");
- rc = CIFSFindNext(xid, pTcon, cifsFile->netfid,
+ rc = CIFSFindNext(xid, pTcon, cifsFile->netfid, search_flags,
&cifsFile->srch_inf);
/* FindFirst/Next set last_entry to NULL on malformed reply */
if (cifsFile->srch_inf.last_entry)
--- /dev/null
+/*
+ * SMB1 (CIFS) version specific operations
+ *
+ * Copyright (c) 2012, Jeff Layton <jlayton@redhat.com>
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License v2 as published
+ * by the Free Software Foundation.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "cifsglob.h"
+#include "cifsproto.h"
+#include "cifs_debug.h"
+#include "cifspdu.h"
+
+/*
+ * An NT cancel request header looks just like the original request except:
+ *
+ * The Command is SMB_COM_NT_CANCEL
+ * The WordCount is zeroed out
+ * The ByteCount is zeroed out
+ *
+ * This function mangles an existing request buffer into a
+ * SMB_COM_NT_CANCEL request and then sends it.
+ */
+static int
+send_nt_cancel(struct TCP_Server_Info *server, void *buf,
+ struct mid_q_entry *mid)
+{
+ int rc = 0;
+ struct smb_hdr *in_buf = (struct smb_hdr *)buf;
+
+ /* -4 for RFC1001 length and +2 for BCC field */
+ in_buf->smb_buf_length = cpu_to_be32(sizeof(struct smb_hdr) - 4 + 2);
+ in_buf->Command = SMB_COM_NT_CANCEL;
+ in_buf->WordCount = 0;
+ put_bcc(0, in_buf);
+
+ mutex_lock(&server->srv_mutex);
+ rc = cifs_sign_smb(in_buf, server, &mid->sequence_number);
+ if (rc) {
+ mutex_unlock(&server->srv_mutex);
+ return rc;
+ }
+ rc = smb_send(server, in_buf, be32_to_cpu(in_buf->smb_buf_length));
+ mutex_unlock(&server->srv_mutex);
+
+ cFYI(1, "issued NT_CANCEL for mid %u, rc = %d",
+ in_buf->Mid, rc);
+
+ return rc;
+}
+
+static bool
+cifs_compare_fids(struct cifsFileInfo *ob1, struct cifsFileInfo *ob2)
+{
+ return ob1->netfid == ob2->netfid;
+}
+
+static unsigned int
+cifs_read_data_offset(char *buf)
+{
+ READ_RSP *rsp = (READ_RSP *)buf;
+ return le16_to_cpu(rsp->DataOffset);
+}
+
+static unsigned int
+cifs_read_data_length(char *buf)
+{
+ READ_RSP *rsp = (READ_RSP *)buf;
+ return (le16_to_cpu(rsp->DataLengthHigh) << 16) +
+ le16_to_cpu(rsp->DataLength);
+}
+
+static struct mid_q_entry *
+cifs_find_mid(struct TCP_Server_Info *server, char *buffer)
+{
+ struct smb_hdr *buf = (struct smb_hdr *)buffer;
+ struct mid_q_entry *mid;
+
+ spin_lock(&GlobalMid_Lock);
+ list_for_each_entry(mid, &server->pending_mid_q, qhead) {
+ if (mid->mid == buf->Mid &&
+ mid->mid_state == MID_REQUEST_SUBMITTED &&
+ le16_to_cpu(mid->command) == buf->Command) {
+ spin_unlock(&GlobalMid_Lock);
+ return mid;
+ }
+ }
+ spin_unlock(&GlobalMid_Lock);
+ return NULL;
+}
+
+static void
+cifs_add_credits(struct TCP_Server_Info *server, const unsigned int add)
+{
+ spin_lock(&server->req_lock);
+ server->credits += add;
+ server->in_flight--;
+ spin_unlock(&server->req_lock);
+ wake_up(&server->request_q);
+}
+
+static void
+cifs_set_credits(struct TCP_Server_Info *server, const int val)
+{
+ spin_lock(&server->req_lock);
+ server->credits = val;
+ server->oplocks = val > 1 ? enable_oplocks : false;
+ spin_unlock(&server->req_lock);
+}
+
+static int *
+cifs_get_credits_field(struct TCP_Server_Info *server)
+{
+ return &server->credits;
+}
+
+struct smb_version_operations smb1_operations = {
+ .send_cancel = send_nt_cancel,
+ .compare_fids = cifs_compare_fids,
+ .setup_request = cifs_setup_request,
+ .check_receive = cifs_check_receive,
+ .add_credits = cifs_add_credits,
+ .set_credits = cifs_set_credits,
+ .get_credits_field = cifs_get_credits_field,
+ .read_data_offset = cifs_read_data_offset,
+ .read_data_length = cifs_read_data_length,
+ .map_error = map_smb_to_linux_error,
+ .find_mid = cifs_find_mid,
+ .check_message = checkSMB,
+ .dump_detail = cifs_dump_detail,
+ .is_oplock_break = is_valid_oplock_break,
+};
+
+struct smb_version_values smb1_values = {
+ .version_string = SMB1_VERSION_STRING,
+ .large_lock_type = LOCKING_ANDX_LARGE_FILES,
+ .exclusive_lock_type = 0,
+ .shared_lock_type = LOCKING_ANDX_SHARED_LOCK,
+ .unlock_lock_type = 0,
+ .header_size = sizeof(struct smb_hdr),
+ .max_header_size = MAX_CIFS_HDR_SIZE,
+ .read_rsp_size = sizeof(READ_RSP),
+};
--- /dev/null
+/*
+ * SMB2 version specific operations
+ *
+ * Copyright (c) 2012, Jeff Layton <jlayton@redhat.com>
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License v2 as published
+ * by the Free Software Foundation.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "cifsglob.h"
+
+struct smb_version_operations smb21_operations = {
+};
+
+struct smb_version_values smb21_values = {
+ .version_string = SMB21_VERSION_STRING,
+};
static int
wait_for_free_request(struct TCP_Server_Info *server, const int optype)
{
- return wait_for_free_credits(server, optype, get_credits_field(server));
+ return wait_for_free_credits(server, optype,
+ server->ops->get_credits_field(server));
}
static int allocate_mid(struct cifs_ses *ses, struct smb_hdr *in_buf,
rc = cifs_setup_async_request(server, iov, nvec, &mid);
if (rc) {
mutex_unlock(&server->srv_mutex);
- cifs_add_credits(server, 1);
+ add_credits(server, 1);
wake_up(&server->request_q);
return rc;
}
return rc;
out_err:
delete_mid(mid);
- cifs_add_credits(server, 1);
+ add_credits(server, 1);
wake_up(&server->request_q);
return rc;
}
return rc;
}
-/*
- * An NT cancel request header looks just like the original request except:
- *
- * The Command is SMB_COM_NT_CANCEL
- * The WordCount is zeroed out
- * The ByteCount is zeroed out
- *
- * This function mangles an existing request buffer into a
- * SMB_COM_NT_CANCEL request and then sends it.
- */
-static int
-send_nt_cancel(struct TCP_Server_Info *server, struct smb_hdr *in_buf,
- struct mid_q_entry *mid)
+static inline int
+send_cancel(struct TCP_Server_Info *server, void *buf, struct mid_q_entry *mid)
{
- int rc = 0;
-
- /* -4 for RFC1001 length and +2 for BCC field */
- in_buf->smb_buf_length = cpu_to_be32(sizeof(struct smb_hdr) - 4 + 2);
- in_buf->Command = SMB_COM_NT_CANCEL;
- in_buf->WordCount = 0;
- put_bcc(0, in_buf);
-
- mutex_lock(&server->srv_mutex);
- rc = cifs_sign_smb(in_buf, server, &mid->sequence_number);
- if (rc) {
- mutex_unlock(&server->srv_mutex);
- return rc;
- }
- rc = smb_send(server, in_buf, be32_to_cpu(in_buf->smb_buf_length));
- mutex_unlock(&server->srv_mutex);
-
- cFYI(1, "issued NT_CANCEL for mid %u, rc = %d",
- in_buf->Mid, rc);
-
- return rc;
+ return server->ops->send_cancel ?
+ server->ops->send_cancel(server, buf, mid) : 0;
}
int
return map_smb_to_linux_error(mid->resp_buf, log_error);
}
-static int
+int
cifs_setup_request(struct cifs_ses *ses, struct kvec *iov,
unsigned int nvec, struct mid_q_entry **ret_mid)
{
mutex_lock(&ses->server->srv_mutex);
- rc = cifs_setup_request(ses, iov, n_vec, &midQ);
+ rc = ses->server->ops->setup_request(ses, iov, n_vec, &midQ);
if (rc) {
mutex_unlock(&ses->server->srv_mutex);
cifs_small_buf_release(buf);
/* Update # of requests on wire to server */
- cifs_add_credits(ses->server, 1);
+ add_credits(ses->server, 1);
return rc;
}
rc = wait_for_response(ses->server, midQ);
if (rc != 0) {
- send_nt_cancel(ses->server, (struct smb_hdr *)buf, midQ);
+ send_cancel(ses->server, buf, midQ);
spin_lock(&GlobalMid_Lock);
if (midQ->mid_state == MID_REQUEST_SUBMITTED) {
midQ->callback = DeleteMidQEntry;
spin_unlock(&GlobalMid_Lock);
cifs_small_buf_release(buf);
- cifs_add_credits(ses->server, 1);
+ add_credits(ses->server, 1);
return rc;
}
spin_unlock(&GlobalMid_Lock);
rc = cifs_sync_mid_result(midQ, ses->server);
if (rc != 0) {
- cifs_add_credits(ses->server, 1);
+ add_credits(ses->server, 1);
return rc;
}
else
*pRespBufType = CIFS_SMALL_BUFFER;
- rc = cifs_check_receive(midQ, ses->server, flags & CIFS_LOG_ERROR);
+ rc = ses->server->ops->check_receive(midQ, ses->server,
+ flags & CIFS_LOG_ERROR);
/* mark it so buf will not be freed by delete_mid */
if ((flags & CIFS_NO_RESP) == 0)
midQ->resp_buf = NULL;
out:
delete_mid(midQ);
- cifs_add_credits(ses->server, 1);
+ add_credits(ses->server, 1);
return rc;
}
if (rc) {
mutex_unlock(&ses->server->srv_mutex);
/* Update # of requests on wire to server */
- cifs_add_credits(ses->server, 1);
+ add_credits(ses->server, 1);
return rc;
}
rc = wait_for_response(ses->server, midQ);
if (rc != 0) {
- send_nt_cancel(ses->server, in_buf, midQ);
+ send_cancel(ses->server, in_buf, midQ);
spin_lock(&GlobalMid_Lock);
if (midQ->mid_state == MID_REQUEST_SUBMITTED) {
/* no longer considered to be "in-flight" */
midQ->callback = DeleteMidQEntry;
spin_unlock(&GlobalMid_Lock);
- cifs_add_credits(ses->server, 1);
+ add_credits(ses->server, 1);
return rc;
}
spin_unlock(&GlobalMid_Lock);
rc = cifs_sync_mid_result(midQ, ses->server);
if (rc != 0) {
- cifs_add_credits(ses->server, 1);
+ add_credits(ses->server, 1);
return rc;
}
rc = cifs_check_receive(midQ, ses->server, 0);
out:
delete_mid(midQ);
- cifs_add_credits(ses->server, 1);
+ add_credits(ses->server, 1);
return rc;
}
if (in_buf->Command == SMB_COM_TRANSACTION2) {
/* POSIX lock. We send a NT_CANCEL SMB to cause the
blocking lock to return. */
- rc = send_nt_cancel(ses->server, in_buf, midQ);
+ rc = send_cancel(ses->server, in_buf, midQ);
if (rc) {
delete_mid(midQ);
return rc;
rc = wait_for_response(ses->server, midQ);
if (rc) {
- send_nt_cancel(ses->server, in_buf, midQ);
+ send_cancel(ses->server, in_buf, midQ);
spin_lock(&GlobalMid_Lock);
if (midQ->mid_state == MID_REQUEST_SUBMITTED) {
/* no longer considered to be "in-flight" */
ssize_t compat_rw_copy_check_uvector(int type,
const struct compat_iovec __user *uvector, unsigned long nr_segs,
unsigned long fast_segs, struct iovec *fast_pointer,
- struct iovec **ret_pointer, int check_access)
+ struct iovec **ret_pointer)
{
compat_ssize_t tot_len;
struct iovec *iov = *ret_pointer = fast_pointer;
}
if (len < 0) /* size_t not fitting in compat_ssize_t .. */
goto out;
- if (check_access &&
+ if (type >= 0 &&
!access_ok(vrfy_dir(type), compat_ptr(buf), len)) {
ret = -EFAULT;
goto out;
{
int error;
struct file *file;
+ int fput_needed;
struct compat_readdir_callback buf;
- error = -EBADF;
- file = fget(fd);
+ file = fget_light(fd, &fput_needed);
if (!file)
- goto out;
+ return -EBADF;
buf.result = 0;
buf.dirent = dirent;
if (buf.result)
error = buf.result;
- fput(file);
-out:
+ fput_light(file, fput_needed);
return error;
}
struct file * file;
struct compat_linux_dirent __user * lastdirent;
struct compat_getdents_callback buf;
+ int fput_needed;
int error;
- error = -EFAULT;
if (!access_ok(VERIFY_WRITE, dirent, count))
- goto out;
+ return -EFAULT;
- error = -EBADF;
- file = fget(fd);
+ file = fget_light(fd, &fput_needed);
if (!file)
- goto out;
+ return -EBADF;
buf.current_dir = dirent;
buf.previous = NULL;
else
error = count - buf.count;
}
- fput(file);
-out:
+ fput_light(file, fput_needed);
return error;
}
struct file * file;
struct linux_dirent64 __user * lastdirent;
struct compat_getdents_callback64 buf;
+ int fput_needed;
int error;
- error = -EFAULT;
if (!access_ok(VERIFY_WRITE, dirent, count))
- goto out;
+ return -EFAULT;
- error = -EBADF;
- file = fget(fd);
+ file = fget_light(fd, &fput_needed);
if (!file)
- goto out;
+ return -EBADF;
buf.current_dir = dirent;
buf.previous = NULL;
else
error = count - buf.count;
}
- fput(file);
-out:
+ fput_light(file, fput_needed);
return error;
}
#endif /* ! __ARCH_OMIT_COMPAT_SYS_GETDENTS64 */
goto out;
tot_len = compat_rw_copy_check_uvector(type, uvector, nr_segs,
- UIO_FASTIOV, iovstack, &iov, 1);
+ UIO_FASTIOV, iovstack, &iov);
if (tot_len == 0) {
ret = 0;
goto out;
compat_ptr(a.exp), compat_ptr(a.tvp));
}
-#ifdef HAVE_SET_RESTORE_SIGMASK
static long do_compat_pselect(int n, compat_ulong_t __user *inp,
compat_ulong_t __user *outp, compat_ulong_t __user *exp,
struct compat_timespec __user *tsp, compat_sigset_t __user *sigmask,
return ret;
}
-#endif /* HAVE_SET_RESTORE_SIGMASK */
#ifdef CONFIG_EPOLL
-#ifdef HAVE_SET_RESTORE_SIGMASK
asmlinkage long compat_sys_epoll_pwait(int epfd,
struct compat_epoll_event __user *events,
int maxevents, int timeout,
return err;
}
-#endif /* HAVE_SET_RESTORE_SIGMASK */
#endif /* CONFIG_EPOLL */
/**
* d_find_alias - grab a hashed alias of inode
* @inode: inode in question
- * @want_discon: flag, used by d_splice_alias, to request
- * that only a DISCONNECTED alias be returned.
*
* If inode has a hashed alias, or is a directory and has any alias,
* acquire the reference to alias and return it. Otherwise return NULL.
* of a filesystem.
*
* If the inode has an IS_ROOT, DCACHE_DISCONNECTED alias, then prefer
- * any other hashed alias over that one unless @want_discon is set,
- * in which case only return an IS_ROOT, DCACHE_DISCONNECTED alias.
+ * any other hashed alias over that.
*/
-static struct dentry *__d_find_alias(struct inode *inode, int want_discon)
+static struct dentry *__d_find_alias(struct inode *inode)
{
struct dentry *alias, *discon_alias;
if (IS_ROOT(alias) &&
(alias->d_flags & DCACHE_DISCONNECTED)) {
discon_alias = alias;
- } else if (!want_discon) {
+ } else {
__dget_dlock(alias);
spin_unlock(&alias->d_lock);
return alias;
if (!list_empty(&inode->i_dentry)) {
spin_lock(&inode->i_lock);
- de = __d_find_alias(inode, 0);
+ de = __d_find_alias(inode);
spin_unlock(&inode->i_lock);
}
return de;
if (inode && S_ISDIR(inode->i_mode)) {
spin_lock(&inode->i_lock);
- new = __d_find_alias(inode, 1);
+ new = __d_find_any_alias(inode);
if (new) {
- BUG_ON(!(new->d_flags & DCACHE_DISCONNECTED));
spin_unlock(&inode->i_lock);
security_d_instantiate(new, inode);
d_move(new, dentry);
struct dentry *alias;
/* Does an aliased dentry already exist? */
- alias = __d_find_alias(inode, 0);
+ alias = __d_find_alias(inode);
if (alias) {
actual = alias;
write_seqlock(&rename_lock);
bool slash = false;
int error = 0;
- br_read_lock(vfsmount_lock);
+ br_read_lock(&vfsmount_lock);
while (dentry != root->dentry || vfsmnt != root->mnt) {
struct dentry * parent;
error = prepend(buffer, buflen, "/", 1);
out:
- br_read_unlock(vfsmount_lock);
+ br_read_unlock(&vfsmount_lock);
return error;
global_root:
static struct kmem_cache *dio_cache __read_mostly;
-static void __inode_dio_wait(struct inode *inode)
-{
- wait_queue_head_t *wq = bit_waitqueue(&inode->i_state, __I_DIO_WAKEUP);
- DEFINE_WAIT_BIT(q, &inode->i_state, __I_DIO_WAKEUP);
-
- do {
- prepare_to_wait(wq, &q.wait, TASK_UNINTERRUPTIBLE);
- if (atomic_read(&inode->i_dio_count))
- schedule();
- } while (atomic_read(&inode->i_dio_count));
- finish_wait(wq, &q.wait);
-}
-
-/**
- * inode_dio_wait - wait for outstanding DIO requests to finish
- * @inode: inode to wait for
- *
- * Waits for all pending direct I/O requests to finish so that we can
- * proceed with a truncate or equivalent operation.
- *
- * Must be called under a lock that serializes taking new references
- * to i_dio_count, usually by inode->i_mutex.
- */
-void inode_dio_wait(struct inode *inode)
-{
- if (atomic_read(&inode->i_dio_count))
- __inode_dio_wait(inode);
-}
-EXPORT_SYMBOL(inode_dio_wait);
-
-/*
- * inode_dio_done - signal finish of a direct I/O requests
- * @inode: inode the direct I/O happens on
- *
- * This is called once we've finished processing a direct I/O request,
- * and is used to wake up callers waiting for direct I/O to be quiesced.
- */
-void inode_dio_done(struct inode *inode)
-{
- if (atomic_dec_and_test(&inode->i_dio_count))
- wake_up_bit(&inode->i_state, __I_DIO_WAKEUP);
-}
-EXPORT_SYMBOL(inode_dio_done);
-
/*
* How many pages are in the queue?
*/
{
struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);
char *lower_buf;
- size_t lower_bufsiz = PATH_MAX;
mm_segment_t old_fs;
int rc;
- lower_buf = kmalloc(lower_bufsiz, GFP_KERNEL);
+ lower_buf = kmalloc(PATH_MAX, GFP_KERNEL);
if (!lower_buf) {
rc = -ENOMEM;
goto out;
set_fs(get_ds());
rc = lower_dentry->d_inode->i_op->readlink(lower_dentry,
(char __user *)lower_buf,
- lower_bufsiz);
+ PATH_MAX);
set_fs(old_fs);
if (rc < 0)
goto out;
- lower_bufsiz = rc;
rc = ecryptfs_decode_and_decrypt_filename(buf, bufsiz, dentry,
- lower_buf, lower_bufsiz);
+ lower_buf, rc);
out:
kfree(lower_buf);
return rc;
}
-static int
-ecryptfs_readlink(struct dentry *dentry, char __user *buf, int bufsiz)
+static void *ecryptfs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
- char *kbuf;
- size_t kbufsiz, copied;
+ char *buf;
+ size_t len = PATH_MAX;
int rc;
- rc = ecryptfs_readlink_lower(dentry, &kbuf, &kbufsiz);
+ rc = ecryptfs_readlink_lower(dentry, &buf, &len);
if (rc)
goto out;
- copied = min_t(size_t, bufsiz, kbufsiz);
- rc = copy_to_user(buf, kbuf, copied) ? -EFAULT : copied;
- kfree(kbuf);
fsstack_copy_attr_atime(dentry->d_inode,
ecryptfs_dentry_to_lower(dentry)->d_inode);
-out:
- return rc;
-}
-
-static void *ecryptfs_follow_link(struct dentry *dentry, struct nameidata *nd)
-{
- char *buf;
- int len = PAGE_SIZE, rc;
- mm_segment_t old_fs;
-
- /* Released in ecryptfs_put_link(); only release here on error */
- buf = kmalloc(len, GFP_KERNEL);
- if (!buf) {
- buf = ERR_PTR(-ENOMEM);
- goto out;
- }
- old_fs = get_fs();
- set_fs(get_ds());
- rc = dentry->d_inode->i_op->readlink(dentry, (char __user *)buf, len);
- set_fs(old_fs);
- if (rc < 0) {
- kfree(buf);
- buf = ERR_PTR(rc);
- } else
- buf[rc] = '\0';
+ buf[len] = '\0';
out:
nd_set_link(nd, buf);
return NULL;
}
const struct inode_operations ecryptfs_symlink_iops = {
- .readlink = ecryptfs_readlink,
+ .readlink = generic_readlink,
.follow_link = ecryptfs_follow_link,
.put_link = ecryptfs_put_link,
.permission = ecryptfs_permission,
* value, and we signal this as overflow condition by returining a POLLERR
* to poll(2).
*
- * Returns @n in case of success, a non-negative number lower than @n in case
- * of overflow, or the following error codes:
- *
- * -EINVAL : The value of @n is negative.
+ * Returns the amount by which the counter was incrememnted. This will be less
+ * than @n if the counter has overflowed.
*/
-int eventfd_signal(struct eventfd_ctx *ctx, int n)
+__u64 eventfd_signal(struct eventfd_ctx *ctx, __u64 n)
{
unsigned long flags;
- if (n < 0)
- return -EINVAL;
spin_lock_irqsave(&ctx->wqh.lock, flags);
if (ULLONG_MAX - ctx->count < n)
- n = (int) (ULLONG_MAX - ctx->count);
+ n = ULLONG_MAX - ctx->count;
ctx->count += n;
if (waitqueue_active(&ctx->wqh))
wake_up_locked_poll(&ctx->wqh, POLLIN);
return error;
}
-#ifdef HAVE_SET_RESTORE_SIGMASK
-
/*
* Implement the event wait interface for the eventpoll file. It is the kernel
* part of the user space epoll_pwait(2).
return error;
}
-#endif /* HAVE_SET_RESTORE_SIGMASK */
-
static int __init eventpoll_init(void)
{
struct sysinfo si;
vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
INIT_LIST_HEAD(&vma->anon_vma_chain);
- err = security_file_mmap(NULL, 0, 0, 0, vma->vm_start, 1);
- if (err)
- goto err;
-
err = insert_vm_struct(mm, vma);
if (err)
goto err;
/**
* export_encode_fh - default export_operations->encode_fh function
- * @dentry: the dentry to encode
+ * @inode: the object to encode
* @fh: where to store the file handle fragment
* @max_len: maximum length to store there
- * @connectable: whether to store parent information
+ * @parent: parent directory inode, if wanted
*
* This default encode_fh function assumes that the 32 inode number
* is suitable for locating an inode, and that the generation number
* can be used to check that it is still valid. It places them in the
* filehandle fragment where export_decode_fh expects to find them.
*/
-static int export_encode_fh(struct dentry *dentry, struct fid *fid,
- int *max_len, int connectable)
+static int export_encode_fh(struct inode *inode, struct fid *fid,
+ int *max_len, struct inode *parent)
{
- struct inode * inode = dentry->d_inode;
int len = *max_len;
int type = FILEID_INO32_GEN;
- if (connectable && (len < 4)) {
+ if (parent && (len < 4)) {
*max_len = 4;
return 255;
} else if (len < 2) {
len = 2;
fid->i32.ino = inode->i_ino;
fid->i32.gen = inode->i_generation;
- if (connectable && !S_ISDIR(inode->i_mode)) {
- struct inode *parent;
-
- spin_lock(&dentry->d_lock);
- parent = dentry->d_parent->d_inode;
+ if (parent) {
fid->i32.parent_ino = parent->i_ino;
fid->i32.parent_gen = parent->i_generation;
- spin_unlock(&dentry->d_lock);
len = 4;
type = FILEID_INO32_GEN_PARENT;
}
{
const struct export_operations *nop = dentry->d_sb->s_export_op;
int error;
+ struct dentry *p = NULL;
+ struct inode *inode = dentry->d_inode, *parent = NULL;
+ if (connectable && !S_ISDIR(inode->i_mode)) {
+ p = dget_parent(dentry);
+ /*
+ * note that while p might've ceased to be our parent already,
+ * it's still pinned by and still positive.
+ */
+ parent = p->d_inode;
+ }
if (nop->encode_fh)
- error = nop->encode_fh(dentry, fid->raw, max_len, connectable);
+ error = nop->encode_fh(inode, fid->raw, max_len, parent);
else
- error = export_encode_fh(dentry, fid, max_len, connectable);
+ error = export_encode_fh(inode, fid, max_len, parent);
+ dput(p);
return error;
}
tristate "The Extended 4 (ext4) filesystem"
select JBD2
select CRC16
+ select CRYPTO
+ select CRYPTO_CRC32C
help
This is the next generation of the ext3 filesystem.
/* If checksum is bad mark all blocks used to prevent allocation
* essentially implementing a per-group read-only flag. */
- if (!ext4_group_desc_csum_verify(sbi, block_group, gdp)) {
+ if (!ext4_group_desc_csum_verify(sb, block_group, gdp)) {
ext4_error(sb, "Checksum bad for group %u", block_group);
ext4_free_group_clusters_set(sb, gdp, 0);
ext4_free_inodes_set(sb, gdp, 0);
ext4_itable_unused_set(sb, gdp, 0);
memset(bh->b_data, 0xff, sb->s_blocksize);
+ ext4_block_bitmap_csum_set(sb, block_group, gdp, bh,
+ EXT4_BLOCKS_PER_GROUP(sb) / 8);
return;
}
memset(bh->b_data, 0, sb->s_blocksize);
*/
ext4_mark_bitmap_end(num_clusters_in_group(sb, block_group),
sb->s_blocksize * 8, bh->b_data);
+ ext4_block_bitmap_csum_set(sb, block_group, gdp, bh,
+ EXT4_BLOCKS_PER_GROUP(sb) / 8);
+ ext4_group_desc_csum_set(sb, block_group, gdp);
}
/* Return the number of free blocks in a block group. It is used when
}
static int ext4_valid_block_bitmap(struct super_block *sb,
- struct ext4_group_desc *desc,
- unsigned int block_group,
- struct buffer_head *bh)
+ struct ext4_group_desc *desc,
+ unsigned int block_group,
+ struct buffer_head *bh)
{
ext4_grpblk_t offset;
ext4_grpblk_t next_zero_bit;
block_group, bitmap_blk);
return 0;
}
+
+void ext4_validate_block_bitmap(struct super_block *sb,
+ struct ext4_group_desc *desc,
+ unsigned int block_group,
+ struct buffer_head *bh)
+{
+ if (buffer_verified(bh))
+ return;
+
+ ext4_lock_group(sb, block_group);
+ if (ext4_valid_block_bitmap(sb, desc, block_group, bh) &&
+ ext4_block_bitmap_csum_verify(sb, block_group, desc, bh,
+ EXT4_BLOCKS_PER_GROUP(sb) / 8))
+ set_buffer_verified(bh);
+ ext4_unlock_group(sb, block_group);
+}
+
/**
* ext4_read_block_bitmap()
* @sb: super block
}
if (bitmap_uptodate(bh))
- return bh;
+ goto verify;
lock_buffer(bh);
if (bitmap_uptodate(bh)) {
unlock_buffer(bh);
- return bh;
+ goto verify;
}
ext4_lock_group(sb, block_group);
if (desc->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT)) {
*/
set_bitmap_uptodate(bh);
unlock_buffer(bh);
- return bh;
+ goto verify;
}
/*
* submit the buffer_head for reading
get_bh(bh);
submit_bh(READ, bh);
return bh;
+verify:
+ ext4_validate_block_bitmap(sb, desc, block_group, bh);
+ return bh;
}
/* Returns 0 on success, 1 on error */
}
clear_buffer_new(bh);
/* Panic or remount fs read-only if block bitmap is invalid */
- ext4_valid_block_bitmap(sb, desc, block_group, bh);
+ ext4_validate_block_bitmap(sb, desc, block_group, bh);
return 0;
}
#endif /* EXT4FS_DEBUG */
+int ext4_inode_bitmap_csum_verify(struct super_block *sb, ext4_group_t group,
+ struct ext4_group_desc *gdp,
+ struct buffer_head *bh, int sz)
+{
+ __u32 hi;
+ __u32 provided, calculated;
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 1;
+
+ provided = le16_to_cpu(gdp->bg_inode_bitmap_csum_lo);
+ calculated = ext4_chksum(sbi, sbi->s_csum_seed, (__u8 *)bh->b_data, sz);
+ if (sbi->s_desc_size >= EXT4_BG_INODE_BITMAP_CSUM_HI_END) {
+ hi = le16_to_cpu(gdp->bg_inode_bitmap_csum_hi);
+ provided |= (hi << 16);
+ } else
+ calculated &= 0xFFFF;
+
+ return provided == calculated;
+}
+
+void ext4_inode_bitmap_csum_set(struct super_block *sb, ext4_group_t group,
+ struct ext4_group_desc *gdp,
+ struct buffer_head *bh, int sz)
+{
+ __u32 csum;
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return;
+
+ csum = ext4_chksum(sbi, sbi->s_csum_seed, (__u8 *)bh->b_data, sz);
+ gdp->bg_inode_bitmap_csum_lo = cpu_to_le16(csum & 0xFFFF);
+ if (sbi->s_desc_size >= EXT4_BG_INODE_BITMAP_CSUM_HI_END)
+ gdp->bg_inode_bitmap_csum_hi = cpu_to_le16(csum >> 16);
+}
+
+int ext4_block_bitmap_csum_verify(struct super_block *sb, ext4_group_t group,
+ struct ext4_group_desc *gdp,
+ struct buffer_head *bh, int sz)
+{
+ __u32 hi;
+ __u32 provided, calculated;
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 1;
+
+ provided = le16_to_cpu(gdp->bg_block_bitmap_csum_lo);
+ calculated = ext4_chksum(sbi, sbi->s_csum_seed, (__u8 *)bh->b_data, sz);
+ if (sbi->s_desc_size >= EXT4_BG_BLOCK_BITMAP_CSUM_HI_END) {
+ hi = le16_to_cpu(gdp->bg_block_bitmap_csum_hi);
+ provided |= (hi << 16);
+ } else
+ calculated &= 0xFFFF;
+
+ if (provided == calculated)
+ return 1;
+
+ ext4_error(sb, "Bad block bitmap checksum: block_group = %u", group);
+ return 0;
+}
+
+void ext4_block_bitmap_csum_set(struct super_block *sb, ext4_group_t group,
+ struct ext4_group_desc *gdp,
+ struct buffer_head *bh, int sz)
+{
+ __u32 csum;
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return;
+
+ csum = ext4_chksum(sbi, sbi->s_csum_seed, (__u8 *)bh->b_data, sz);
+ gdp->bg_block_bitmap_csum_lo = cpu_to_le16(csum & 0xFFFF);
+ if (sbi->s_desc_size >= EXT4_BG_BLOCK_BITMAP_CSUM_HI_END)
+ gdp->bg_block_bitmap_csum_hi = cpu_to_le16(csum >> 16);
+}
continue;
}
+ /* Check the checksum */
+ if (!buffer_verified(bh) &&
+ !ext4_dirent_csum_verify(inode,
+ (struct ext4_dir_entry *)bh->b_data)) {
+ EXT4_ERROR_FILE(filp, 0, "directory fails checksum "
+ "at offset %llu",
+ (unsigned long long)filp->f_pos);
+ filp->f_pos += sb->s_blocksize - offset;
+ continue;
+ }
+ set_buffer_verified(bh);
+
revalidate:
/* If the dir block has changed since the last call to
* readdir(2), then we might be pointing to an invalid
#include <linux/wait.h>
#include <linux/blockgroup_lock.h>
#include <linux/percpu_counter.h>
+#include <crypto/hash.h>
#ifdef __KERNEL__
#include <linux/compat.h>
#endif
__le16 bg_free_inodes_count_lo;/* Free inodes count */
__le16 bg_used_dirs_count_lo; /* Directories count */
__le16 bg_flags; /* EXT4_BG_flags (INODE_UNINIT, etc) */
- __u32 bg_reserved[2]; /* Likely block/inode bitmap checksum */
+ __le32 bg_exclude_bitmap_lo; /* Exclude bitmap for snapshots */
+ __le16 bg_block_bitmap_csum_lo;/* crc32c(s_uuid+grp_num+bbitmap) LE */
+ __le16 bg_inode_bitmap_csum_lo;/* crc32c(s_uuid+grp_num+ibitmap) LE */
__le16 bg_itable_unused_lo; /* Unused inodes count */
__le16 bg_checksum; /* crc16(sb_uuid+group+desc) */
__le32 bg_block_bitmap_hi; /* Blocks bitmap block MSB */
__le16 bg_free_inodes_count_hi;/* Free inodes count MSB */
__le16 bg_used_dirs_count_hi; /* Directories count MSB */
__le16 bg_itable_unused_hi; /* Unused inodes count MSB */
- __u32 bg_reserved2[3];
+ __le32 bg_exclude_bitmap_hi; /* Exclude bitmap block MSB */
+ __le16 bg_block_bitmap_csum_hi;/* crc32c(s_uuid+grp_num+bbitmap) BE */
+ __le16 bg_inode_bitmap_csum_hi;/* crc32c(s_uuid+grp_num+ibitmap) BE */
+ __u32 bg_reserved;
};
+#define EXT4_BG_INODE_BITMAP_CSUM_HI_END \
+ (offsetof(struct ext4_group_desc, bg_inode_bitmap_csum_hi) + \
+ sizeof(__le16))
+#define EXT4_BG_BLOCK_BITMAP_CSUM_HI_END \
+ (offsetof(struct ext4_group_desc, bg_block_bitmap_csum_hi) + \
+ sizeof(__le16))
+
/*
* Structure of a flex block group info
*/
__le16 l_i_file_acl_high;
__le16 l_i_uid_high; /* these 2 fields */
__le16 l_i_gid_high; /* were reserved2[0] */
- __u32 l_i_reserved2;
+ __le16 l_i_checksum_lo;/* crc32c(uuid+inum+inode) LE */
+ __le16 l_i_reserved;
} linux2;
struct {
__le16 h_i_reserved1; /* Obsoleted fragment number/size which are removed in ext4 */
} masix2;
} osd2; /* OS dependent 2 */
__le16 i_extra_isize;
- __le16 i_pad1;
+ __le16 i_checksum_hi; /* crc32c(uuid+inum+inode) BE */
__le32 i_ctime_extra; /* extra Change time (nsec << 2 | epoch) */
__le32 i_mtime_extra; /* extra Modification time(nsec << 2 | epoch) */
__le32 i_atime_extra; /* extra Access time (nsec << 2 | epoch) */
#define i_gid_low i_gid
#define i_uid_high osd2.linux2.l_i_uid_high
#define i_gid_high osd2.linux2.l_i_gid_high
-#define i_reserved2 osd2.linux2.l_i_reserved2
+#define i_checksum_lo osd2.linux2.l_i_checksum_lo
#elif defined(__GNU__)
*/
tid_t i_sync_tid;
tid_t i_datasync_tid;
+
+ /* Precomputed uuid+inum+igen checksum for seeding inode checksums */
+ __u32 i_csum_seed;
};
/*
#define EXT4_ERRORS_PANIC 3 /* Panic */
#define EXT4_ERRORS_DEFAULT EXT4_ERRORS_CONTINUE
+/* Metadata checksum algorithm codes */
+#define EXT4_CRC32C_CHKSUM 1
+
/*
* Structure of the super block
*/
__le64 s_mmp_block; /* Block for multi-mount protection */
__le32 s_raid_stripe_width; /* blocks on all data disks (N*stride)*/
__u8 s_log_groups_per_flex; /* FLEX_BG group size */
- __u8 s_reserved_char_pad;
+ __u8 s_checksum_type; /* metadata checksum algorithm used */
__le16 s_reserved_pad;
__le64 s_kbytes_written; /* nr of lifetime kilobytes written */
__le32 s_snapshot_inum; /* Inode number of active snapshot */
__le32 s_usr_quota_inum; /* inode for tracking user quota */
__le32 s_grp_quota_inum; /* inode for tracking group quota */
__le32 s_overhead_clusters; /* overhead blocks/clusters in fs */
- __le32 s_reserved[109]; /* Padding to the end of the block */
+ __le32 s_reserved[108]; /* Padding to the end of the block */
+ __le32 s_checksum; /* crc32c(superblock) */
};
#define EXT4_S_ERR_LEN (EXT4_S_ERR_END - EXT4_S_ERR_START)
struct proc_dir_entry *s_proc;
struct kobject s_kobj;
struct completion s_kobj_unregister;
+ struct super_block *s_sb;
/* Journaling */
struct journal_s *s_journal;
/* record the last minlen when FITRIM is called. */
atomic_t s_last_trim_minblks;
+
+ /* Reference to checksum algorithm driver via cryptoapi */
+ struct crypto_shash *s_chksum_driver;
+
+ /* Precomputed FS UUID checksum for seeding other checksums */
+ __u32 s_csum_seed;
};
static inline struct ext4_sb_info *EXT4_SB(struct super_block *sb)
#define EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE 0x0040
#define EXT4_FEATURE_RO_COMPAT_QUOTA 0x0100
#define EXT4_FEATURE_RO_COMPAT_BIGALLOC 0x0200
+/*
+ * METADATA_CSUM also enables group descriptor checksums (GDT_CSUM). When
+ * METADATA_CSUM is set, group descriptor checksums use the same algorithm as
+ * all other data structures' checksums. However, the METADATA_CSUM and
+ * GDT_CSUM bits are mutually exclusive.
+ */
#define EXT4_FEATURE_RO_COMPAT_METADATA_CSUM 0x0400
#define EXT4_FEATURE_INCOMPAT_COMPRESSION 0x0001
EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE | \
EXT4_FEATURE_RO_COMPAT_BTREE_DIR |\
EXT4_FEATURE_RO_COMPAT_HUGE_FILE |\
- EXT4_FEATURE_RO_COMPAT_BIGALLOC)
+ EXT4_FEATURE_RO_COMPAT_BIGALLOC |\
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)
/*
* Default values for user and/or group using reserved blocks
char name[EXT4_NAME_LEN]; /* File name */
};
+/*
+ * This is a bogus directory entry at the end of each leaf block that
+ * records checksums.
+ */
+struct ext4_dir_entry_tail {
+ __le32 det_reserved_zero1; /* Pretend to be unused */
+ __le16 det_rec_len; /* 12 */
+ __u8 det_reserved_zero2; /* Zero name length */
+ __u8 det_reserved_ft; /* 0xDE, fake file type */
+ __le32 det_checksum; /* crc32c(uuid+inum+dirblock) */
+};
+
/*
* Ext4 directory file types. Only the low 3 bits are used. The
* other bits are reserved for now.
#define EXT4_FT_MAX 8
+#define EXT4_FT_DIR_CSUM 0xDE
+
/*
* EXT4_DIR_PAD defines the directory entries boundaries
*
#define DX_HASH_HALF_MD4_UNSIGNED 4
#define DX_HASH_TEA_UNSIGNED 5
+static inline u32 ext4_chksum(struct ext4_sb_info *sbi, u32 crc,
+ const void *address, unsigned int length)
+{
+ struct {
+ struct shash_desc shash;
+ char ctx[crypto_shash_descsize(sbi->s_chksum_driver)];
+ } desc;
+ int err;
+
+ desc.shash.tfm = sbi->s_chksum_driver;
+ desc.shash.flags = 0;
+ *(u32 *)desc.ctx = crc;
+
+ err = crypto_shash_update(&desc.shash, address, length);
+ BUG_ON(err);
+
+ return *(u32 *)desc.ctx;
+}
+
#ifdef __KERNEL__
/* hash info structure used by the directory hash */
__le16 mmp_check_interval;
__le16 mmp_pad1;
- __le32 mmp_pad2[227];
+ __le32 mmp_pad2[226];
+ __le32 mmp_checksum; /* crc32c(uuid+mmp_block) */
};
/* arguments passed to the mmp thread */
/* bitmap.c */
extern unsigned int ext4_count_free(struct buffer_head *, unsigned);
+void ext4_inode_bitmap_csum_set(struct super_block *sb, ext4_group_t group,
+ struct ext4_group_desc *gdp,
+ struct buffer_head *bh, int sz);
+int ext4_inode_bitmap_csum_verify(struct super_block *sb, ext4_group_t group,
+ struct ext4_group_desc *gdp,
+ struct buffer_head *bh, int sz);
+void ext4_block_bitmap_csum_set(struct super_block *sb, ext4_group_t group,
+ struct ext4_group_desc *gdp,
+ struct buffer_head *bh, int sz);
+int ext4_block_bitmap_csum_verify(struct super_block *sb, ext4_group_t group,
+ struct ext4_group_desc *gdp,
+ struct buffer_head *bh, int sz);
/* balloc.c */
+extern void ext4_validate_block_bitmap(struct super_block *sb,
+ struct ext4_group_desc *desc,
+ unsigned int block_group,
+ struct buffer_head *bh);
extern unsigned int ext4_block_group(struct super_block *sb,
ext4_fsblk_t blocknr);
extern ext4_grpblk_t ext4_block_group_offset(struct super_block *sb,
/* mballoc.c */
extern long ext4_mb_stats;
extern long ext4_mb_max_to_scan;
-extern int ext4_mb_init(struct super_block *, int);
+extern int ext4_mb_init(struct super_block *);
extern int ext4_mb_release(struct super_block *);
extern ext4_fsblk_t ext4_mb_new_blocks(handle_t *,
struct ext4_allocation_request *, int *);
extern int ext4_ext_migrate(struct inode *);
/* namei.c */
+extern int ext4_dirent_csum_verify(struct inode *inode,
+ struct ext4_dir_entry *dirent);
extern int ext4_orphan_add(handle_t *, struct inode *);
extern int ext4_orphan_del(handle_t *, struct inode *);
extern int ext4_htree_fill_tree(struct file *dir_file, __u32 start_hash,
extern int ext4_resize_fs(struct super_block *sb, ext4_fsblk_t n_blocks_count);
/* super.c */
+extern int ext4_superblock_csum_verify(struct super_block *sb,
+ struct ext4_super_block *es);
+extern void ext4_superblock_csum_set(struct super_block *sb,
+ struct ext4_super_block *es);
extern void *ext4_kvmalloc(size_t size, gfp_t flags);
extern void *ext4_kvzalloc(size_t size, gfp_t flags);
extern void ext4_kvfree(void *ptr);
struct ext4_group_desc *bg, __u32 count);
extern void ext4_itable_unused_set(struct super_block *sb,
struct ext4_group_desc *bg, __u32 count);
-extern __le16 ext4_group_desc_csum(struct ext4_sb_info *sbi, __u32 group,
- struct ext4_group_desc *gdp);
-extern int ext4_group_desc_csum_verify(struct ext4_sb_info *sbi, __u32 group,
+extern int ext4_group_desc_csum_verify(struct super_block *sb, __u32 group,
struct ext4_group_desc *gdp);
+extern void ext4_group_desc_csum_set(struct super_block *sb, __u32 group,
+ struct ext4_group_desc *gdp);
+
+static inline int ext4_has_group_desc_csum(struct super_block *sb)
+{
+ return EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
+}
static inline ext4_fsblk_t ext4_blocks_count(struct ext4_super_block *es)
{
static inline void ext4_mark_super_dirty(struct super_block *sb)
{
+ struct ext4_super_block *es = EXT4_SB(sb)->s_es;
+
+ ext4_superblock_csum_set(sb, es);
if (EXT4_SB(sb)->s_journal == NULL)
sb->s_dirt =1;
}
/* mmp.c */
extern int ext4_multi_mount_protect(struct super_block *, ext4_fsblk_t);
+extern void ext4_mmp_csum_set(struct super_block *sb, struct mmp_struct *mmp);
+extern int ext4_mmp_csum_verify(struct super_block *sb,
+ struct mmp_struct *mmp);
/* BH_Uninit flag: blocks are allocated but uninitialized on disk */
enum ext4_state_bits {
* ext4_inode has i_block array (60 bytes total).
* The first 12 bytes store ext4_extent_header;
* the remainder stores an array of ext4_extent.
+ * For non-inode extent blocks, ext4_extent_tail
+ * follows the array.
*/
+/*
+ * This is the extent tail on-disk structure.
+ * All other extent structures are 12 bytes long. It turns out that
+ * block_size % 12 >= 4 for at least all powers of 2 greater than 512, which
+ * covers all valid ext4 block sizes. Therefore, this tail structure can be
+ * crammed into the end of the block without having to rebalance the tree.
+ */
+struct ext4_extent_tail {
+ __le32 et_checksum; /* crc32c(uuid+inum+extent_block) */
+};
+
/*
* This is the extent on-disk structure.
* It's used at the bottom of the tree.
#define EXT4_EXT_MAGIC cpu_to_le16(0xf30a)
+#define EXT4_EXTENT_TAIL_OFFSET(hdr) \
+ (sizeof(struct ext4_extent_header) + \
+ (sizeof(struct ext4_extent) * le16_to_cpu((hdr)->eh_max)))
+
+static inline struct ext4_extent_tail *
+find_ext4_extent_tail(struct ext4_extent_header *eh)
+{
+ return (struct ext4_extent_tail *)(((void *)eh) +
+ EXT4_EXTENT_TAIL_OFFSET(eh));
+}
+
/*
* Array of ext4_ext_path contains path to some extent.
* Creation/lookup routines use it for traversal/splitting/etc.
}
int __ext4_handle_dirty_super(const char *where, unsigned int line,
- handle_t *handle, struct super_block *sb)
+ handle_t *handle, struct super_block *sb,
+ int now)
{
struct buffer_head *bh = EXT4_SB(sb)->s_sbh;
int err = 0;
if (ext4_handle_valid(handle)) {
+ ext4_superblock_csum_set(sb,
+ (struct ext4_super_block *)bh->b_data);
err = jbd2_journal_dirty_metadata(handle, bh);
if (err)
ext4_journal_abort_handle(where, line, __func__,
bh, handle, err);
+ } else if (now) {
+ ext4_superblock_csum_set(sb,
+ (struct ext4_super_block *)bh->b_data);
+ mark_buffer_dirty(bh);
} else
sb->s_dirt = 1;
return err;
struct buffer_head *bh);
int __ext4_handle_dirty_super(const char *where, unsigned int line,
- handle_t *handle, struct super_block *sb);
+ handle_t *handle, struct super_block *sb,
+ int now);
#define ext4_journal_get_write_access(handle, bh) \
__ext4_journal_get_write_access(__func__, __LINE__, (handle), (bh))
#define ext4_handle_dirty_metadata(handle, inode, bh) \
__ext4_handle_dirty_metadata(__func__, __LINE__, (handle), (inode), \
(bh))
+#define ext4_handle_dirty_super_now(handle, sb) \
+ __ext4_handle_dirty_super(__func__, __LINE__, (handle), (sb), 1)
#define ext4_handle_dirty_super(handle, sb) \
- __ext4_handle_dirty_super(__func__, __LINE__, (handle), (sb))
+ __ext4_handle_dirty_super(__func__, __LINE__, (handle), (sb), 0)
handle_t *ext4_journal_start_sb(struct super_block *sb, int nblocks);
int __ext4_journal_stop(const char *where, unsigned int line, handle_t *handle);
#define EXT4_EXT_MARK_UNINIT1 0x2 /* mark first half uninitialized */
#define EXT4_EXT_MARK_UNINIT2 0x4 /* mark second half uninitialized */
+static __le32 ext4_extent_block_csum(struct inode *inode,
+ struct ext4_extent_header *eh)
+{
+ struct ext4_inode_info *ei = EXT4_I(inode);
+ struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
+ __u32 csum;
+
+ csum = ext4_chksum(sbi, ei->i_csum_seed, (__u8 *)eh,
+ EXT4_EXTENT_TAIL_OFFSET(eh));
+ return cpu_to_le32(csum);
+}
+
+static int ext4_extent_block_csum_verify(struct inode *inode,
+ struct ext4_extent_header *eh)
+{
+ struct ext4_extent_tail *et;
+
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 1;
+
+ et = find_ext4_extent_tail(eh);
+ if (et->et_checksum != ext4_extent_block_csum(inode, eh))
+ return 0;
+ return 1;
+}
+
+static void ext4_extent_block_csum_set(struct inode *inode,
+ struct ext4_extent_header *eh)
+{
+ struct ext4_extent_tail *et;
+
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return;
+
+ et = find_ext4_extent_tail(eh);
+ et->et_checksum = ext4_extent_block_csum(inode, eh);
+}
+
static int ext4_split_extent(handle_t *handle,
struct inode *inode,
struct ext4_ext_path *path,
{
int err;
if (path->p_bh) {
+ ext4_extent_block_csum_set(inode, ext_block_hdr(path->p_bh));
/* path points to block */
err = __ext4_handle_dirty_metadata(where, line, handle,
inode, path->p_bh);
error_msg = "invalid extent entries";
goto corrupted;
}
+ /* Verify checksum on non-root extent tree nodes */
+ if (ext_depth(inode) != depth &&
+ !ext4_extent_block_csum_verify(inode, eh)) {
+ error_msg = "extent tree corrupted";
+ goto corrupted;
+ }
return 0;
corrupted:
return ext4_ext_check(inode, ext_inode_hdr(inode), ext_depth(inode));
}
+static int __ext4_ext_check_block(const char *function, unsigned int line,
+ struct inode *inode,
+ struct ext4_extent_header *eh,
+ int depth,
+ struct buffer_head *bh)
+{
+ int ret;
+
+ if (buffer_verified(bh))
+ return 0;
+ ret = ext4_ext_check(inode, eh, depth);
+ if (ret)
+ return ret;
+ set_buffer_verified(bh);
+ return ret;
+}
+
+#define ext4_ext_check_block(inode, eh, depth, bh) \
+ __ext4_ext_check_block(__func__, __LINE__, inode, eh, depth, bh)
+
#ifdef EXT_DEBUG
static void ext4_ext_show_path(struct inode *inode, struct ext4_ext_path *path)
{
}
path->p_idx = l - 1;
- ext_debug(" -> %d->%lld ", le32_to_cpu(path->p_idx->ei_block),
+ ext_debug(" -> %u->%lld ", le32_to_cpu(path->p_idx->ei_block),
ext4_idx_pblock(path->p_idx));
#ifdef CHECK_BINSEARCH
i = depth;
/* walk through the tree */
while (i) {
- int need_to_validate = 0;
-
ext_debug("depth %d: num %d, max %d\n",
ppos, le16_to_cpu(eh->eh_entries), le16_to_cpu(eh->eh_max));
put_bh(bh);
goto err;
}
- /* validate the extent entries */
- need_to_validate = 1;
}
eh = ext_block_hdr(bh);
ppos++;
path[ppos].p_hdr = eh;
i--;
- if (need_to_validate && ext4_ext_check(inode, eh, i))
+ if (ext4_ext_check_block(inode, eh, i, bh))
goto err;
}
le16_add_cpu(&neh->eh_entries, m);
}
+ ext4_extent_block_csum_set(inode, neh);
set_buffer_uptodate(bh);
unlock_buffer(bh);
sizeof(struct ext4_extent_idx) * m);
le16_add_cpu(&neh->eh_entries, m);
}
+ ext4_extent_block_csum_set(inode, neh);
set_buffer_uptodate(bh);
unlock_buffer(bh);
else
neh->eh_max = cpu_to_le16(ext4_ext_space_block(inode, 0));
neh->eh_magic = EXT4_EXT_MAGIC;
+ ext4_extent_block_csum_set(inode, neh);
set_buffer_uptodate(bh);
unlock_buffer(bh);
return -EIO;
eh = ext_block_hdr(bh);
/* subtract from p_depth to get proper eh_depth */
- if (ext4_ext_check(inode, eh, path->p_depth - depth)) {
+ if (ext4_ext_check_block(inode, eh,
+ path->p_depth - depth, bh)) {
put_bh(bh);
return -EIO;
}
if (bh == NULL)
return -EIO;
eh = ext_block_hdr(bh);
- if (ext4_ext_check(inode, eh, path->p_depth - depth)) {
+ if (ext4_ext_check_block(inode, eh, path->p_depth - depth, bh)) {
put_bh(bh);
return -EIO;
}
err = -EIO;
break;
}
- if (ext4_ext_check(inode, ext_block_hdr(bh),
- depth - i - 1)) {
+ if (ext4_ext_check_block(inode, ext_block_hdr(bh),
+ depth - i - 1, bh)) {
err = -EIO;
break;
}
/* Now release the pages */
if (last_page_offset > first_page_offset) {
- truncate_inode_pages_range(mapping, first_page_offset,
- last_page_offset-1);
+ truncate_pagecache_range(inode, first_page_offset,
+ last_page_offset - 1);
}
/* finish any pending end_io work */
{
struct inode *inode = iocb->ki_filp->f_path.dentry->d_inode;
int unaligned_aio = 0;
- int ret;
+ ssize_t ret;
/*
* If we have encountered a bitmap-format file, the size limit
ext4_group_t block_group,
struct ext4_group_desc *gdp)
{
- struct ext4_sb_info *sbi = EXT4_SB(sb);
-
J_ASSERT_BH(bh, buffer_locked(bh));
/* If checksum is bad mark all blocks and inodes use to prevent
* allocation, essentially implementing a per-group read-only flag. */
- if (!ext4_group_desc_csum_verify(sbi, block_group, gdp)) {
+ if (!ext4_group_desc_csum_verify(sb, block_group, gdp)) {
ext4_error(sb, "Checksum bad for group %u", block_group);
ext4_free_group_clusters_set(sb, gdp, 0);
ext4_free_inodes_set(sb, gdp, 0);
ext4_itable_unused_set(sb, gdp, 0);
memset(bh->b_data, 0xff, sb->s_blocksize);
+ ext4_inode_bitmap_csum_set(sb, block_group, gdp, bh,
+ EXT4_INODES_PER_GROUP(sb) / 8);
return 0;
}
memset(bh->b_data, 0, (EXT4_INODES_PER_GROUP(sb) + 7) / 8);
ext4_mark_bitmap_end(EXT4_INODES_PER_GROUP(sb), sb->s_blocksize * 8,
bh->b_data);
+ ext4_inode_bitmap_csum_set(sb, block_group, gdp, bh,
+ EXT4_INODES_PER_GROUP(sb) / 8);
+ ext4_group_desc_csum_set(sb, block_group, gdp);
return EXT4_INODES_PER_GROUP(sb);
}
return NULL;
}
if (bitmap_uptodate(bh))
- return bh;
+ goto verify;
lock_buffer(bh);
if (bitmap_uptodate(bh)) {
unlock_buffer(bh);
- return bh;
+ goto verify;
}
ext4_lock_group(sb, block_group);
ext4_init_inode_bitmap(sb, bh, block_group, desc);
set_bitmap_uptodate(bh);
set_buffer_uptodate(bh);
+ set_buffer_verified(bh);
ext4_unlock_group(sb, block_group);
unlock_buffer(bh);
return bh;
*/
set_bitmap_uptodate(bh);
unlock_buffer(bh);
- return bh;
+ goto verify;
}
/*
* submit the buffer_head for reading
block_group, bitmap_blk);
return NULL;
}
+
+verify:
+ ext4_lock_group(sb, block_group);
+ if (!buffer_verified(bh) &&
+ !ext4_inode_bitmap_csum_verify(sb, block_group, desc, bh,
+ EXT4_INODES_PER_GROUP(sb) / 8)) {
+ ext4_unlock_group(sb, block_group);
+ put_bh(bh);
+ ext4_error(sb, "Corrupt inode bitmap - block_group = %u, "
+ "inode_bitmap = %llu", block_group, bitmap_blk);
+ return NULL;
+ }
+ ext4_unlock_group(sb, block_group);
+ set_buffer_verified(bh);
return bh;
}
ext4_used_dirs_set(sb, gdp, count);
percpu_counter_dec(&sbi->s_dirs_counter);
}
- gdp->bg_checksum = ext4_group_desc_csum(sbi, block_group, gdp);
+ ext4_inode_bitmap_csum_set(sb, block_group, gdp, bitmap_bh,
+ EXT4_INODES_PER_GROUP(sb) / 8);
+ ext4_group_desc_csum_set(sb, block_group, gdp);
ext4_unlock_group(sb, block_group);
percpu_counter_inc(&sbi->s_freeinodes_counter);
for (i = 0; i < ngroups; i++) {
grp = (parent_group + i) % ngroups;
desc = ext4_get_group_desc(sb, grp, NULL);
- grp_free = ext4_free_inodes_count(sb, desc);
- if (desc && grp_free && grp_free >= avefreei) {
- *group = grp;
- return 0;
+ if (desc) {
+ grp_free = ext4_free_inodes_count(sb, desc);
+ if (grp_free && grp_free >= avefreei) {
+ *group = grp;
+ return 0;
+ }
}
}
got:
/* We may have to initialize the block bitmap if it isn't already */
- if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_GDT_CSUM) &&
+ if (ext4_has_group_desc_csum(sb) &&
gdp->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT)) {
struct buffer_head *block_bitmap_bh;
gdp->bg_flags &= cpu_to_le16(~EXT4_BG_BLOCK_UNINIT);
ext4_free_group_clusters_set(sb, gdp,
ext4_free_clusters_after_init(sb, group, gdp));
- gdp->bg_checksum = ext4_group_desc_csum(sbi, group,
- gdp);
+ ext4_block_bitmap_csum_set(sb, group, gdp,
+ block_bitmap_bh,
+ EXT4_BLOCKS_PER_GROUP(sb) /
+ 8);
+ ext4_group_desc_csum_set(sb, group, gdp);
}
ext4_unlock_group(sb, group);
goto fail;
/* Update the relevant bg descriptor fields */
- if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
+ if (ext4_has_group_desc_csum(sb)) {
int free;
struct ext4_group_info *grp = ext4_get_group_info(sb, group);
ext4_itable_unused_set(sb, gdp,
(EXT4_INODES_PER_GROUP(sb) - ino));
up_read(&grp->alloc_sem);
+ } else {
+ ext4_lock_group(sb, group);
}
+
ext4_free_inodes_set(sb, gdp, ext4_free_inodes_count(sb, gdp) - 1);
if (S_ISDIR(mode)) {
ext4_used_dirs_set(sb, gdp, ext4_used_dirs_count(sb, gdp) + 1);
atomic_inc(&sbi->s_flex_groups[f].used_dirs);
}
}
- if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
- gdp->bg_checksum = ext4_group_desc_csum(sbi, group, gdp);
- ext4_unlock_group(sb, group);
+ if (ext4_has_group_desc_csum(sb)) {
+ ext4_inode_bitmap_csum_set(sb, group, gdp, inode_bitmap_bh,
+ EXT4_INODES_PER_GROUP(sb) / 8);
+ ext4_group_desc_csum_set(sb, group, gdp);
}
+ ext4_unlock_group(sb, group);
BUFFER_TRACE(inode_bitmap_bh, "call ext4_handle_dirty_metadata");
err = ext4_handle_dirty_metadata(handle, NULL, inode_bitmap_bh);
inode->i_generation = sbi->s_next_generation++;
spin_unlock(&sbi->s_next_gen_lock);
+ /* Precompute checksum seed for inode metadata */
+ if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
+ __u32 csum;
+ struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
+ __le32 inum = cpu_to_le32(inode->i_ino);
+ __le32 gen = cpu_to_le32(inode->i_generation);
+ csum = ext4_chksum(sbi, sbi->s_csum_seed, (__u8 *)&inum,
+ sizeof(inum));
+ ei->i_csum_seed = ext4_chksum(sbi, csum, (__u8 *)&gen,
+ sizeof(gen));
+ }
+
ext4_clear_state_flags(ei); /* Only relevant on 32-bit archs */
ext4_set_inode_state(inode, EXT4_STATE_NEW);
skip_zeroout:
ext4_lock_group(sb, group);
gdp->bg_flags |= cpu_to_le16(EXT4_BG_INODE_ZEROED);
- gdp->bg_checksum = ext4_group_desc_csum(sbi, group, gdp);
+ ext4_group_desc_csum_set(sb, group, gdp);
ext4_unlock_group(sb, group);
BUFFER_TRACE(group_desc_bh,
#define MPAGE_DA_EXTENT_TAIL 0x01
+static __u32 ext4_inode_csum(struct inode *inode, struct ext4_inode *raw,
+ struct ext4_inode_info *ei)
+{
+ struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
+ __u16 csum_lo;
+ __u16 csum_hi = 0;
+ __u32 csum;
+
+ csum_lo = raw->i_checksum_lo;
+ raw->i_checksum_lo = 0;
+ if (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE &&
+ EXT4_FITS_IN_INODE(raw, ei, i_checksum_hi)) {
+ csum_hi = raw->i_checksum_hi;
+ raw->i_checksum_hi = 0;
+ }
+
+ csum = ext4_chksum(sbi, ei->i_csum_seed, (__u8 *)raw,
+ EXT4_INODE_SIZE(inode->i_sb));
+
+ raw->i_checksum_lo = csum_lo;
+ if (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE &&
+ EXT4_FITS_IN_INODE(raw, ei, i_checksum_hi))
+ raw->i_checksum_hi = csum_hi;
+
+ return csum;
+}
+
+static int ext4_inode_csum_verify(struct inode *inode, struct ext4_inode *raw,
+ struct ext4_inode_info *ei)
+{
+ __u32 provided, calculated;
+
+ if (EXT4_SB(inode->i_sb)->s_es->s_creator_os !=
+ cpu_to_le32(EXT4_OS_LINUX) ||
+ !EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 1;
+
+ provided = le16_to_cpu(raw->i_checksum_lo);
+ calculated = ext4_inode_csum(inode, raw, ei);
+ if (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE &&
+ EXT4_FITS_IN_INODE(raw, ei, i_checksum_hi))
+ provided |= ((__u32)le16_to_cpu(raw->i_checksum_hi)) << 16;
+ else
+ calculated &= 0xFFFF;
+
+ return provided == calculated;
+}
+
+static void ext4_inode_csum_set(struct inode *inode, struct ext4_inode *raw,
+ struct ext4_inode_info *ei)
+{
+ __u32 csum;
+
+ if (EXT4_SB(inode->i_sb)->s_es->s_creator_os !=
+ cpu_to_le32(EXT4_OS_LINUX) ||
+ !EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return;
+
+ csum = ext4_inode_csum(inode, raw, ei);
+ raw->i_checksum_lo = cpu_to_le16(csum & 0xFFFF);
+ if (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE &&
+ EXT4_FITS_IN_INODE(raw, ei, i_checksum_hi))
+ raw->i_checksum_hi = cpu_to_le16(csum >> 16);
+}
+
static inline int ext4_begin_ordered_truncate(struct inode *inode,
loff_t new_size)
{
b = table;
end = b + EXT4_SB(sb)->s_inode_readahead_blks;
num = EXT4_INODES_PER_GROUP(sb);
- if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
+ if (ext4_has_group_desc_csum(sb))
num -= ext4_itable_unused_count(sb, gdp);
table += num / inodes_per_block;
if (end > table)
if (ret < 0)
goto bad_inode;
raw_inode = ext4_raw_inode(&iloc);
+
+ if (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE) {
+ ei->i_extra_isize = le16_to_cpu(raw_inode->i_extra_isize);
+ if (EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize >
+ EXT4_INODE_SIZE(inode->i_sb)) {
+ EXT4_ERROR_INODE(inode, "bad extra_isize (%u != %u)",
+ EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize,
+ EXT4_INODE_SIZE(inode->i_sb));
+ ret = -EIO;
+ goto bad_inode;
+ }
+ } else
+ ei->i_extra_isize = 0;
+
+ /* Precompute checksum seed for inode metadata */
+ if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
+ struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
+ __u32 csum;
+ __le32 inum = cpu_to_le32(inode->i_ino);
+ __le32 gen = raw_inode->i_generation;
+ csum = ext4_chksum(sbi, sbi->s_csum_seed, (__u8 *)&inum,
+ sizeof(inum));
+ ei->i_csum_seed = ext4_chksum(sbi, csum, (__u8 *)&gen,
+ sizeof(gen));
+ }
+
+ if (!ext4_inode_csum_verify(inode, raw_inode, ei)) {
+ EXT4_ERROR_INODE(inode, "checksum invalid");
+ ret = -EIO;
+ goto bad_inode;
+ }
+
inode->i_mode = le16_to_cpu(raw_inode->i_mode);
i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
}
if (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE) {
- ei->i_extra_isize = le16_to_cpu(raw_inode->i_extra_isize);
- if (EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize >
- EXT4_INODE_SIZE(inode->i_sb)) {
- ret = -EIO;
- goto bad_inode;
- }
if (ei->i_extra_isize == 0) {
/* The extra space is currently unused. Use it. */
ei->i_extra_isize = sizeof(struct ext4_inode) -
if (*magic == cpu_to_le32(EXT4_XATTR_MAGIC))
ext4_set_inode_state(inode, EXT4_STATE_XATTR);
}
- } else
- ei->i_extra_isize = 0;
+ }
EXT4_INODE_GET_XTIME(i_ctime, inode, raw_inode);
EXT4_INODE_GET_XTIME(i_mtime, inode, raw_inode);
EXT4_SET_RO_COMPAT_FEATURE(sb,
EXT4_FEATURE_RO_COMPAT_LARGE_FILE);
ext4_handle_sync(handle);
- err = ext4_handle_dirty_super(handle, sb);
+ err = ext4_handle_dirty_super_now(handle, sb);
}
}
raw_inode->i_generation = cpu_to_le32(inode->i_generation);
raw_inode->i_extra_isize = cpu_to_le16(ei->i_extra_isize);
}
+ ext4_inode_csum_set(inode, raw_inode, ei);
+
BUFFER_TRACE(bh, "call ext4_handle_dirty_metadata");
rc = ext4_handle_dirty_metadata(handle, NULL, bh);
if (!err)
* will return the blocks that include the delayed allocation
* blocks for this file.
*/
- delalloc_blocks = EXT4_I(inode)->i_reserved_data_blocks;
+ delalloc_blocks = EXT4_C2B(EXT4_SB(inode->i_sb),
+ EXT4_I(inode)->i_reserved_data_blocks);
stat->blocks += (delalloc_blocks << inode->i_sb->s_blocksize_bits)>>9;
return 0;
handle_t *handle = NULL;
int err, migrate = 0;
struct ext4_iloc iloc;
- unsigned int oldflags;
+ unsigned int oldflags, mask, i;
unsigned int jflag;
if (!inode_owner_or_capable(inode))
if (err)
goto flags_err;
- flags = flags & EXT4_FL_USER_MODIFIABLE;
- flags |= oldflags & ~EXT4_FL_USER_MODIFIABLE;
+ for (i = 0, mask = 1; i < 32; i++, mask <<= 1) {
+ if (!(mask & EXT4_FL_USER_MODIFIABLE))
+ continue;
+ if (mask & flags)
+ ext4_set_inode_flag(inode, i);
+ else
+ ext4_clear_inode_flag(inode, i);
+ }
ei->i_flags = flags;
ext4_set_inode_flags(inode);
if (!inode_owner_or_capable(inode))
return -EPERM;
+ if (EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
+ ext4_warning(sb, "Setting inode version is not "
+ "supported with metadata_csum enabled.");
+ return -ENOTTY;
+ }
+
err = mnt_want_write_file(filp);
if (err)
return err;
int first_block;
struct super_block *sb;
struct buffer_head *bhs;
- struct buffer_head **bh;
+ struct buffer_head **bh = NULL;
struct inode *inode;
char *data;
char *bitmap;
return 0;
}
-int ext4_mb_init(struct super_block *sb, int needs_recovery)
+int ext4_mb_init(struct super_block *sb)
{
struct ext4_sb_info *sbi = EXT4_SB(sb);
unsigned i, j;
struct ext4_sb_info *sbi = EXT4_SB(sb);
struct kmem_cache *cachep = get_groupinfo_cache(sb->s_blocksize_bits);
+ if (sbi->s_proc)
+ remove_proc_entry("mb_groups", sbi->s_proc);
+
if (sbi->s_group_info) {
for (i = 0; i < ngroups; i++) {
grinfo = ext4_get_group_info(sb, i);
}
free_percpu(sbi->s_locality_groups);
- if (sbi->s_proc)
- remove_proc_entry("mb_groups", sbi->s_proc);
return 0;
}
}
len = ext4_free_group_clusters(sb, gdp) - ac->ac_b_ex.fe_len;
ext4_free_group_clusters_set(sb, gdp, len);
- gdp->bg_checksum = ext4_group_desc_csum(sbi, ac->ac_b_ex.fe_group, gdp);
+ ext4_block_bitmap_csum_set(sb, ac->ac_b_ex.fe_group, gdp, bitmap_bh,
+ EXT4_BLOCKS_PER_GROUP(sb) / 8);
+ ext4_group_desc_csum_set(sb, ac->ac_b_ex.fe_group, gdp);
ext4_unlock_group(sb, ac->ac_b_ex.fe_group);
percpu_counter_sub(&sbi->s_freeclusters_counter, ac->ac_b_ex.fe_len);
static void ext4_discard_allocated_blocks(struct ext4_allocation_context *ac)
{
struct ext4_prealloc_space *pa = ac->ac_pa;
- int len;
-
- if (pa && pa->pa_type == MB_INODE_PA) {
- len = ac->ac_b_ex.fe_len;
- pa->pa_free += len;
- }
+ if (pa && pa->pa_type == MB_INODE_PA)
+ pa->pa_free += ac->ac_b_ex.fe_len;
}
/*
*/
new_entry = kmem_cache_alloc(ext4_free_data_cachep, GFP_NOFS);
if (!new_entry) {
+ ext4_mb_unload_buddy(&e4b);
err = -ENOMEM;
goto error_return;
}
ret = ext4_free_group_clusters(sb, gdp) + count_clusters;
ext4_free_group_clusters_set(sb, gdp, ret);
- gdp->bg_checksum = ext4_group_desc_csum(sbi, block_group, gdp);
+ ext4_block_bitmap_csum_set(sb, block_group, gdp, bitmap_bh,
+ EXT4_BLOCKS_PER_GROUP(sb) / 8);
+ ext4_group_desc_csum_set(sb, block_group, gdp);
ext4_unlock_group(sb, block_group);
percpu_counter_add(&sbi->s_freeclusters_counter, count_clusters);
mb_free_blocks(NULL, &e4b, bit, count);
blk_free_count = blocks_freed + ext4_free_group_clusters(sb, desc);
ext4_free_group_clusters_set(sb, desc, blk_free_count);
- desc->bg_checksum = ext4_group_desc_csum(sbi, block_group, desc);
+ ext4_block_bitmap_csum_set(sb, block_group, desc, bitmap_bh,
+ EXT4_BLOCKS_PER_GROUP(sb) / 8);
+ ext4_group_desc_csum_set(sb, block_group, desc);
ext4_unlock_group(sb, block_group);
percpu_counter_add(&sbi->s_freeclusters_counter,
EXT4_B2C(sbi, blocks_freed));
#include "ext4.h"
+/* Checksumming functions */
+static __u32 ext4_mmp_csum(struct super_block *sb, struct mmp_struct *mmp)
+{
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+ int offset = offsetof(struct mmp_struct, mmp_checksum);
+ __u32 csum;
+
+ csum = ext4_chksum(sbi, sbi->s_csum_seed, (char *)mmp, offset);
+
+ return cpu_to_le32(csum);
+}
+
+int ext4_mmp_csum_verify(struct super_block *sb, struct mmp_struct *mmp)
+{
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 1;
+
+ return mmp->mmp_checksum == ext4_mmp_csum(sb, mmp);
+}
+
+void ext4_mmp_csum_set(struct super_block *sb, struct mmp_struct *mmp)
+{
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return;
+
+ mmp->mmp_checksum = ext4_mmp_csum(sb, mmp);
+}
+
/*
* Write the MMP block using WRITE_SYNC to try to get the block on-disk
* faster.
*/
-static int write_mmp_block(struct buffer_head *bh)
+static int write_mmp_block(struct super_block *sb, struct buffer_head *bh)
{
+ struct mmp_struct *mmp = (struct mmp_struct *)(bh->b_data);
+
+ ext4_mmp_csum_set(sb, mmp);
mark_buffer_dirty(bh);
lock_buffer(bh);
bh->b_end_io = end_buffer_write_sync;
}
mmp = (struct mmp_struct *)((*bh)->b_data);
- if (le32_to_cpu(mmp->mmp_magic) != EXT4_MMP_MAGIC)
+ if (le32_to_cpu(mmp->mmp_magic) != EXT4_MMP_MAGIC ||
+ !ext4_mmp_csum_verify(sb, mmp))
return -EINVAL;
return 0;
mmp->mmp_time = cpu_to_le64(get_seconds());
last_update_time = jiffies;
- retval = write_mmp_block(bh);
+ retval = write_mmp_block(sb, bh);
/*
* Don't spew too many error messages. Print one every
* (s_mmp_update_interval * 60) seconds.
mmp->mmp_seq = cpu_to_le32(EXT4_MMP_SEQ_CLEAN);
mmp->mmp_time = cpu_to_le64(get_seconds());
- retval = write_mmp_block(bh);
+ retval = write_mmp_block(sb, bh);
failed:
kfree(data);
seq = mmp_new_seq();
mmp->mmp_seq = cpu_to_le32(seq);
- retval = write_mmp_block(bh);
+ retval = write_mmp_block(sb, bh);
if (retval)
goto failed;
u16 size;
};
+/*
+ * This goes at the end of each htree block.
+ */
+struct dx_tail {
+ u32 dt_reserved;
+ __le32 dt_checksum; /* crc32c(uuid+inum+dirblock) */
+};
+
static inline ext4_lblk_t dx_get_block(struct dx_entry *entry);
static void dx_set_block(struct dx_entry *entry, ext4_lblk_t value);
static inline unsigned dx_get_hash(struct dx_entry *entry);
static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
struct inode *inode);
+/* checksumming functions */
+#define EXT4_DIRENT_TAIL(block, blocksize) \
+ ((struct ext4_dir_entry_tail *)(((void *)(block)) + \
+ ((blocksize) - \
+ sizeof(struct ext4_dir_entry_tail))))
+
+static void initialize_dirent_tail(struct ext4_dir_entry_tail *t,
+ unsigned int blocksize)
+{
+ memset(t, 0, sizeof(struct ext4_dir_entry_tail));
+ t->det_rec_len = ext4_rec_len_to_disk(
+ sizeof(struct ext4_dir_entry_tail), blocksize);
+ t->det_reserved_ft = EXT4_FT_DIR_CSUM;
+}
+
+/* Walk through a dirent block to find a checksum "dirent" at the tail */
+static struct ext4_dir_entry_tail *get_dirent_tail(struct inode *inode,
+ struct ext4_dir_entry *de)
+{
+ struct ext4_dir_entry_tail *t;
+
+#ifdef PARANOID
+ struct ext4_dir_entry *d, *top;
+
+ d = de;
+ top = (struct ext4_dir_entry *)(((void *)de) +
+ (EXT4_BLOCK_SIZE(inode->i_sb) -
+ sizeof(struct ext4_dir_entry_tail)));
+ while (d < top && d->rec_len)
+ d = (struct ext4_dir_entry *)(((void *)d) +
+ le16_to_cpu(d->rec_len));
+
+ if (d != top)
+ return NULL;
+
+ t = (struct ext4_dir_entry_tail *)d;
+#else
+ t = EXT4_DIRENT_TAIL(de, EXT4_BLOCK_SIZE(inode->i_sb));
+#endif
+
+ if (t->det_reserved_zero1 ||
+ le16_to_cpu(t->det_rec_len) != sizeof(struct ext4_dir_entry_tail) ||
+ t->det_reserved_zero2 ||
+ t->det_reserved_ft != EXT4_FT_DIR_CSUM)
+ return NULL;
+
+ return t;
+}
+
+static __le32 ext4_dirent_csum(struct inode *inode,
+ struct ext4_dir_entry *dirent, int size)
+{
+ struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
+ struct ext4_inode_info *ei = EXT4_I(inode);
+ __u32 csum;
+
+ csum = ext4_chksum(sbi, ei->i_csum_seed, (__u8 *)dirent, size);
+ return cpu_to_le32(csum);
+}
+
+int ext4_dirent_csum_verify(struct inode *inode, struct ext4_dir_entry *dirent)
+{
+ struct ext4_dir_entry_tail *t;
+
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 1;
+
+ t = get_dirent_tail(inode, dirent);
+ if (!t) {
+ EXT4_ERROR_INODE(inode, "metadata_csum set but no space in dir "
+ "leaf for checksum. Please run e2fsck -D.");
+ return 0;
+ }
+
+ if (t->det_checksum != ext4_dirent_csum(inode, dirent,
+ (void *)t - (void *)dirent))
+ return 0;
+
+ return 1;
+}
+
+static void ext4_dirent_csum_set(struct inode *inode,
+ struct ext4_dir_entry *dirent)
+{
+ struct ext4_dir_entry_tail *t;
+
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return;
+
+ t = get_dirent_tail(inode, dirent);
+ if (!t) {
+ EXT4_ERROR_INODE(inode, "metadata_csum set but no space in dir "
+ "leaf for checksum. Please run e2fsck -D.");
+ return;
+ }
+
+ t->det_checksum = ext4_dirent_csum(inode, dirent,
+ (void *)t - (void *)dirent);
+}
+
+static inline int ext4_handle_dirty_dirent_node(handle_t *handle,
+ struct inode *inode,
+ struct buffer_head *bh)
+{
+ ext4_dirent_csum_set(inode, (struct ext4_dir_entry *)bh->b_data);
+ return ext4_handle_dirty_metadata(handle, inode, bh);
+}
+
+static struct dx_countlimit *get_dx_countlimit(struct inode *inode,
+ struct ext4_dir_entry *dirent,
+ int *offset)
+{
+ struct ext4_dir_entry *dp;
+ struct dx_root_info *root;
+ int count_offset;
+
+ if (le16_to_cpu(dirent->rec_len) == EXT4_BLOCK_SIZE(inode->i_sb))
+ count_offset = 8;
+ else if (le16_to_cpu(dirent->rec_len) == 12) {
+ dp = (struct ext4_dir_entry *)(((void *)dirent) + 12);
+ if (le16_to_cpu(dp->rec_len) !=
+ EXT4_BLOCK_SIZE(inode->i_sb) - 12)
+ return NULL;
+ root = (struct dx_root_info *)(((void *)dp + 12));
+ if (root->reserved_zero ||
+ root->info_length != sizeof(struct dx_root_info))
+ return NULL;
+ count_offset = 32;
+ } else
+ return NULL;
+
+ if (offset)
+ *offset = count_offset;
+ return (struct dx_countlimit *)(((void *)dirent) + count_offset);
+}
+
+static __le32 ext4_dx_csum(struct inode *inode, struct ext4_dir_entry *dirent,
+ int count_offset, int count, struct dx_tail *t)
+{
+ struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
+ struct ext4_inode_info *ei = EXT4_I(inode);
+ __u32 csum, old_csum;
+ int size;
+
+ size = count_offset + (count * sizeof(struct dx_entry));
+ old_csum = t->dt_checksum;
+ t->dt_checksum = 0;
+ csum = ext4_chksum(sbi, ei->i_csum_seed, (__u8 *)dirent, size);
+ csum = ext4_chksum(sbi, csum, (__u8 *)t, sizeof(struct dx_tail));
+ t->dt_checksum = old_csum;
+
+ return cpu_to_le32(csum);
+}
+
+static int ext4_dx_csum_verify(struct inode *inode,
+ struct ext4_dir_entry *dirent)
+{
+ struct dx_countlimit *c;
+ struct dx_tail *t;
+ int count_offset, limit, count;
+
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 1;
+
+ c = get_dx_countlimit(inode, dirent, &count_offset);
+ if (!c) {
+ EXT4_ERROR_INODE(inode, "dir seems corrupt? Run e2fsck -D.");
+ return 1;
+ }
+ limit = le16_to_cpu(c->limit);
+ count = le16_to_cpu(c->count);
+ if (count_offset + (limit * sizeof(struct dx_entry)) >
+ EXT4_BLOCK_SIZE(inode->i_sb) - sizeof(struct dx_tail)) {
+ EXT4_ERROR_INODE(inode, "metadata_csum set but no space for "
+ "tree checksum found. Run e2fsck -D.");
+ return 1;
+ }
+ t = (struct dx_tail *)(((struct dx_entry *)c) + limit);
+
+ if (t->dt_checksum != ext4_dx_csum(inode, dirent, count_offset,
+ count, t))
+ return 0;
+ return 1;
+}
+
+static void ext4_dx_csum_set(struct inode *inode, struct ext4_dir_entry *dirent)
+{
+ struct dx_countlimit *c;
+ struct dx_tail *t;
+ int count_offset, limit, count;
+
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return;
+
+ c = get_dx_countlimit(inode, dirent, &count_offset);
+ if (!c) {
+ EXT4_ERROR_INODE(inode, "dir seems corrupt? Run e2fsck -D.");
+ return;
+ }
+ limit = le16_to_cpu(c->limit);
+ count = le16_to_cpu(c->count);
+ if (count_offset + (limit * sizeof(struct dx_entry)) >
+ EXT4_BLOCK_SIZE(inode->i_sb) - sizeof(struct dx_tail)) {
+ EXT4_ERROR_INODE(inode, "metadata_csum set but no space for "
+ "tree checksum. Run e2fsck -D.");
+ return;
+ }
+ t = (struct dx_tail *)(((struct dx_entry *)c) + limit);
+
+ t->dt_checksum = ext4_dx_csum(inode, dirent, count_offset, count, t);
+}
+
+static inline int ext4_handle_dirty_dx_node(handle_t *handle,
+ struct inode *inode,
+ struct buffer_head *bh)
+{
+ ext4_dx_csum_set(inode, (struct ext4_dir_entry *)bh->b_data);
+ return ext4_handle_dirty_metadata(handle, inode, bh);
+}
+
/*
* p is at least 6 bytes before the end of page
*/
{
unsigned entry_space = dir->i_sb->s_blocksize - EXT4_DIR_REC_LEN(1) -
EXT4_DIR_REC_LEN(2) - infosize;
+
+ if (EXT4_HAS_RO_COMPAT_FEATURE(dir->i_sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ entry_space -= sizeof(struct dx_tail);
return entry_space / sizeof(struct dx_entry);
}
static inline unsigned dx_node_limit(struct inode *dir)
{
unsigned entry_space = dir->i_sb->s_blocksize - EXT4_DIR_REC_LEN(0);
+
+ if (EXT4_HAS_RO_COMPAT_FEATURE(dir->i_sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ entry_space -= sizeof(struct dx_tail);
return entry_space / sizeof(struct dx_entry);
}
goto fail;
}
+ if (!buffer_verified(bh) &&
+ !ext4_dx_csum_verify(dir, (struct ext4_dir_entry *)bh->b_data)) {
+ ext4_warning(dir->i_sb, "Root failed checksum");
+ brelse(bh);
+ *err = ERR_BAD_DX_DIR;
+ goto fail;
+ }
+ set_buffer_verified(bh);
+
entries = (struct dx_entry *) (((char *)&root->info) +
root->info.info_length);
if (!(bh = ext4_bread (NULL,dir, dx_get_block(at), 0, err)))
goto fail2;
at = entries = ((struct dx_node *) bh->b_data)->entries;
+
+ if (!buffer_verified(bh) &&
+ !ext4_dx_csum_verify(dir,
+ (struct ext4_dir_entry *)bh->b_data)) {
+ ext4_warning(dir->i_sb, "Node failed checksum");
+ brelse(bh);
+ *err = ERR_BAD_DX_DIR;
+ goto fail;
+ }
+ set_buffer_verified(bh);
+
if (dx_get_limit(entries) != dx_node_limit (dir)) {
ext4_warning(dir->i_sb,
"dx entry: limit != node limit");
if (!(bh = ext4_bread(NULL, dir, dx_get_block(p->at),
0, &err)))
return err; /* Failure */
+
+ if (!buffer_verified(bh) &&
+ !ext4_dx_csum_verify(dir,
+ (struct ext4_dir_entry *)bh->b_data)) {
+ ext4_warning(dir->i_sb, "Node failed checksum");
+ return -EIO;
+ }
+ set_buffer_verified(bh);
+
p++;
brelse(p->bh);
p->bh = bh;
if (!(bh = ext4_bread (NULL, dir, block, 0, &err)))
return err;
+ if (!buffer_verified(bh) &&
+ !ext4_dirent_csum_verify(dir, (struct ext4_dir_entry *)bh->b_data))
+ return -EIO;
+ set_buffer_verified(bh);
+
de = (struct ext4_dir_entry_2 *) bh->b_data;
top = (struct ext4_dir_entry_2 *) ((char *) de +
dir->i_sb->s_blocksize -
brelse(bh);
goto next;
}
+ if (!buffer_verified(bh) &&
+ !ext4_dirent_csum_verify(dir,
+ (struct ext4_dir_entry *)bh->b_data)) {
+ EXT4_ERROR_INODE(dir, "checksumming directory "
+ "block %lu", (unsigned long)block);
+ brelse(bh);
+ goto next;
+ }
+ set_buffer_verified(bh);
i = search_dirblock(bh, dir, d_name,
block << EXT4_BLOCK_SIZE_BITS(sb), res_dir);
if (i == 1) {
if (!(bh = ext4_bread(NULL, dir, block, 0, err)))
goto errout;
+ if (!buffer_verified(bh) &&
+ !ext4_dirent_csum_verify(dir,
+ (struct ext4_dir_entry *)bh->b_data)) {
+ EXT4_ERROR_INODE(dir, "checksumming directory "
+ "block %lu", (unsigned long)block);
+ brelse(bh);
+ *err = -EIO;
+ goto errout;
+ }
+ set_buffer_verified(bh);
retval = search_dirblock(bh, dir, d_name,
block << EXT4_BLOCK_SIZE_BITS(sb),
res_dir);
EXT4_ERROR_INODE(dir, "bad inode number: %u", ino);
return ERR_PTR(-EIO);
}
+ if (unlikely(ino == dir->i_ino)) {
+ EXT4_ERROR_INODE(dir, "'%.*s' linked to parent dir",
+ dentry->d_name.len,
+ dentry->d_name.name);
+ return ERR_PTR(-EIO);
+ }
inode = ext4_iget(dir->i_sb, ino);
if (inode == ERR_PTR(-ESTALE)) {
EXT4_ERROR_INODE(dir,
char *data1 = (*bh)->b_data, *data2;
unsigned split, move, size;
struct ext4_dir_entry_2 *de = NULL, *de2;
+ struct ext4_dir_entry_tail *t;
+ int csum_size = 0;
int err = 0, i;
+ if (EXT4_HAS_RO_COMPAT_FEATURE(dir->i_sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ csum_size = sizeof(struct ext4_dir_entry_tail);
+
bh2 = ext4_append (handle, dir, &newblock, &err);
if (!(bh2)) {
brelse(*bh);
/* Fancy dance to stay within two buffers */
de2 = dx_move_dirents(data1, data2, map + split, count - split, blocksize);
de = dx_pack_dirents(data1, blocksize);
- de->rec_len = ext4_rec_len_to_disk(data1 + blocksize - (char *) de,
+ de->rec_len = ext4_rec_len_to_disk(data1 + (blocksize - csum_size) -
+ (char *) de,
blocksize);
- de2->rec_len = ext4_rec_len_to_disk(data2 + blocksize - (char *) de2,
+ de2->rec_len = ext4_rec_len_to_disk(data2 + (blocksize - csum_size) -
+ (char *) de2,
blocksize);
+ if (csum_size) {
+ t = EXT4_DIRENT_TAIL(data2, blocksize);
+ initialize_dirent_tail(t, blocksize);
+
+ t = EXT4_DIRENT_TAIL(data1, blocksize);
+ initialize_dirent_tail(t, blocksize);
+ }
+
dxtrace(dx_show_leaf (hinfo, (struct ext4_dir_entry_2 *) data1, blocksize, 1));
dxtrace(dx_show_leaf (hinfo, (struct ext4_dir_entry_2 *) data2, blocksize, 1));
de = de2;
}
dx_insert_block(frame, hash2 + continued, newblock);
- err = ext4_handle_dirty_metadata(handle, dir, bh2);
+ err = ext4_handle_dirty_dirent_node(handle, dir, bh2);
if (err)
goto journal_error;
- err = ext4_handle_dirty_metadata(handle, dir, frame->bh);
+ err = ext4_handle_dirty_dx_node(handle, dir, frame->bh);
if (err)
goto journal_error;
brelse(bh2);
unsigned short reclen;
int nlen, rlen, err;
char *top;
+ int csum_size = 0;
+
+ if (EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ csum_size = sizeof(struct ext4_dir_entry_tail);
reclen = EXT4_DIR_REC_LEN(namelen);
if (!de) {
de = (struct ext4_dir_entry_2 *)bh->b_data;
- top = bh->b_data + blocksize - reclen;
+ top = bh->b_data + (blocksize - csum_size) - reclen;
while ((char *) de <= top) {
if (ext4_check_dir_entry(dir, NULL, de, bh, offset))
return -EIO;
de = de1;
}
de->file_type = EXT4_FT_UNKNOWN;
- if (inode) {
- de->inode = cpu_to_le32(inode->i_ino);
- ext4_set_de_type(dir->i_sb, de, inode->i_mode);
- } else
- de->inode = 0;
+ de->inode = cpu_to_le32(inode->i_ino);
+ ext4_set_de_type(dir->i_sb, de, inode->i_mode);
de->name_len = namelen;
memcpy(de->name, name, namelen);
/*
dir->i_version++;
ext4_mark_inode_dirty(handle, dir);
BUFFER_TRACE(bh, "call ext4_handle_dirty_metadata");
- err = ext4_handle_dirty_metadata(handle, dir, bh);
+ err = ext4_handle_dirty_dirent_node(handle, dir, bh);
if (err)
ext4_std_error(dir->i_sb, err);
return 0;
struct dx_frame frames[2], *frame;
struct dx_entry *entries;
struct ext4_dir_entry_2 *de, *de2;
+ struct ext4_dir_entry_tail *t;
char *data1, *top;
unsigned len;
int retval;
struct dx_hash_info hinfo;
ext4_lblk_t block;
struct fake_dirent *fde;
+ int csum_size = 0;
+
+ if (EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ csum_size = sizeof(struct ext4_dir_entry_tail);
blocksize = dir->i_sb->s_blocksize;
dxtrace(printk(KERN_DEBUG "Creating index: inode %lu\n", dir->i_ino));
brelse(bh);
return -EIO;
}
- len = ((char *) root) + blocksize - (char *) de;
+ len = ((char *) root) + (blocksize - csum_size) - (char *) de;
/* Allocate new block for the 0th block's dirents */
bh2 = ext4_append(handle, dir, &block, &retval);
top = data1 + len;
while ((char *)(de2 = ext4_next_entry(de, blocksize)) < top)
de = de2;
- de->rec_len = ext4_rec_len_to_disk(data1 + blocksize - (char *) de,
+ de->rec_len = ext4_rec_len_to_disk(data1 + (blocksize - csum_size) -
+ (char *) de,
blocksize);
+
+ if (csum_size) {
+ t = EXT4_DIRENT_TAIL(data1, blocksize);
+ initialize_dirent_tail(t, blocksize);
+ }
+
/* Initialize the root; the dot dirents already exist */
de = (struct ext4_dir_entry_2 *) (&root->dotdot);
de->rec_len = ext4_rec_len_to_disk(blocksize - EXT4_DIR_REC_LEN(2),
frame->bh = bh;
bh = bh2;
- ext4_handle_dirty_metadata(handle, dir, frame->bh);
- ext4_handle_dirty_metadata(handle, dir, bh);
+ ext4_handle_dirty_dx_node(handle, dir, frame->bh);
+ ext4_handle_dirty_dirent_node(handle, dir, bh);
de = do_split(handle,dir, &bh, frame, &hinfo, &retval);
if (!de) {
struct inode *dir = dentry->d_parent->d_inode;
struct buffer_head *bh;
struct ext4_dir_entry_2 *de;
+ struct ext4_dir_entry_tail *t;
struct super_block *sb;
int retval;
int dx_fallback=0;
unsigned blocksize;
ext4_lblk_t block, blocks;
+ int csum_size = 0;
+
+ if (EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ csum_size = sizeof(struct ext4_dir_entry_tail);
sb = dir->i_sb;
blocksize = sb->s_blocksize;
bh = ext4_bread(handle, dir, block, 0, &retval);
if(!bh)
return retval;
+ if (!buffer_verified(bh) &&
+ !ext4_dirent_csum_verify(dir,
+ (struct ext4_dir_entry *)bh->b_data))
+ return -EIO;
+ set_buffer_verified(bh);
retval = add_dirent_to_buf(handle, dentry, inode, NULL, bh);
if (retval != -ENOSPC) {
brelse(bh);
return retval;
de = (struct ext4_dir_entry_2 *) bh->b_data;
de->inode = 0;
- de->rec_len = ext4_rec_len_to_disk(blocksize, blocksize);
+ de->rec_len = ext4_rec_len_to_disk(blocksize - csum_size, blocksize);
+
+ if (csum_size) {
+ t = EXT4_DIRENT_TAIL(bh->b_data, blocksize);
+ initialize_dirent_tail(t, blocksize);
+ }
+
retval = add_dirent_to_buf(handle, dentry, inode, de, bh);
brelse(bh);
if (retval == 0)
if (!(bh = ext4_bread(handle,dir, dx_get_block(frame->at), 0, &err)))
goto cleanup;
+ if (!buffer_verified(bh) &&
+ !ext4_dirent_csum_verify(dir, (struct ext4_dir_entry *)bh->b_data))
+ goto journal_error;
+ set_buffer_verified(bh);
+
BUFFER_TRACE(bh, "get_write_access");
err = ext4_journal_get_write_access(handle, bh);
if (err)
dxtrace(dx_show_index("node", frames[1].entries));
dxtrace(dx_show_index("node",
((struct dx_node *) bh2->b_data)->entries));
- err = ext4_handle_dirty_metadata(handle, dir, bh2);
+ err = ext4_handle_dirty_dx_node(handle, dir, bh2);
if (err)
goto journal_error;
brelse (bh2);
if (err)
goto journal_error;
}
- err = ext4_handle_dirty_metadata(handle, dir, frames[0].bh);
+ err = ext4_handle_dirty_dx_node(handle, dir, frames[0].bh);
if (err) {
ext4_std_error(inode->i_sb, err);
goto cleanup;
{
struct ext4_dir_entry_2 *de, *pde;
unsigned int blocksize = dir->i_sb->s_blocksize;
+ int csum_size = 0;
int i, err;
+ if (EXT4_HAS_RO_COMPAT_FEATURE(dir->i_sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ csum_size = sizeof(struct ext4_dir_entry_tail);
+
i = 0;
pde = NULL;
de = (struct ext4_dir_entry_2 *) bh->b_data;
- while (i < bh->b_size) {
+ while (i < bh->b_size - csum_size) {
if (ext4_check_dir_entry(dir, NULL, de, bh, i))
return -EIO;
if (de == de_del) {
de->inode = 0;
dir->i_version++;
BUFFER_TRACE(bh, "call ext4_handle_dirty_metadata");
- err = ext4_handle_dirty_metadata(handle, dir, bh);
+ err = ext4_handle_dirty_dirent_node(handle, dir, bh);
if (unlikely(err)) {
ext4_std_error(dir->i_sb, err);
return err;
struct inode *inode;
struct buffer_head *dir_block = NULL;
struct ext4_dir_entry_2 *de;
+ struct ext4_dir_entry_tail *t;
unsigned int blocksize = dir->i_sb->s_blocksize;
+ int csum_size = 0;
int err, retries = 0;
+ if (EXT4_HAS_RO_COMPAT_FEATURE(dir->i_sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ csum_size = sizeof(struct ext4_dir_entry_tail);
+
if (EXT4_DIR_LINK_MAX(dir))
return -EMLINK;
ext4_set_de_type(dir->i_sb, de, S_IFDIR);
de = ext4_next_entry(de, blocksize);
de->inode = cpu_to_le32(dir->i_ino);
- de->rec_len = ext4_rec_len_to_disk(blocksize - EXT4_DIR_REC_LEN(1),
+ de->rec_len = ext4_rec_len_to_disk(blocksize -
+ (csum_size + EXT4_DIR_REC_LEN(1)),
blocksize);
de->name_len = 2;
strcpy(de->name, "..");
ext4_set_de_type(dir->i_sb, de, S_IFDIR);
set_nlink(inode, 2);
+
+ if (csum_size) {
+ t = EXT4_DIRENT_TAIL(dir_block->b_data, blocksize);
+ initialize_dirent_tail(t, blocksize);
+ }
+
BUFFER_TRACE(dir_block, "call ext4_handle_dirty_metadata");
- err = ext4_handle_dirty_metadata(handle, inode, dir_block);
+ err = ext4_handle_dirty_dirent_node(handle, inode, dir_block);
if (err)
goto out_clear_inode;
+ set_buffer_verified(dir_block);
err = ext4_mark_inode_dirty(handle, inode);
if (!err)
err = ext4_add_entry(handle, dentry, inode);
inode->i_ino);
return 1;
}
+ if (!buffer_verified(bh) &&
+ !ext4_dirent_csum_verify(inode,
+ (struct ext4_dir_entry *)bh->b_data)) {
+ EXT4_ERROR_INODE(inode, "checksum error reading directory "
+ "lblock 0");
+ return -EIO;
+ }
+ set_buffer_verified(bh);
de = (struct ext4_dir_entry_2 *) bh->b_data;
de1 = ext4_next_entry(de, sb->s_blocksize);
if (le32_to_cpu(de->inode) != inode->i_ino ||
offset += sb->s_blocksize;
continue;
}
+ if (!buffer_verified(bh) &&
+ !ext4_dirent_csum_verify(inode,
+ (struct ext4_dir_entry *)bh->b_data)) {
+ EXT4_ERROR_INODE(inode, "checksum error "
+ "reading directory lblock 0");
+ return -EIO;
+ }
+ set_buffer_verified(bh);
de = (struct ext4_dir_entry_2 *) bh->b_data;
}
if (ext4_check_dir_entry(inode, NULL, de, bh, offset)) {
/* Insert this inode at the head of the on-disk orphan list... */
NEXT_ORPHAN(inode) = le32_to_cpu(EXT4_SB(sb)->s_es->s_last_orphan);
EXT4_SB(sb)->s_es->s_last_orphan = cpu_to_le32(inode->i_ino);
- err = ext4_handle_dirty_metadata(handle, NULL, EXT4_SB(sb)->s_sbh);
+ err = ext4_handle_dirty_super_now(handle, sb);
rc = ext4_mark_iloc_dirty(handle, inode, &iloc);
if (!err)
err = rc;
if (err)
goto out_brelse;
sbi->s_es->s_last_orphan = cpu_to_le32(ino_next);
- err = ext4_handle_dirty_metadata(handle, NULL, sbi->s_sbh);
+ err = ext4_handle_dirty_super_now(handle, inode->i_sb);
} else {
struct ext4_iloc iloc2;
struct inode *i_prev =
dir_bh = ext4_bread(handle, old_inode, 0, 0, &retval);
if (!dir_bh)
goto end_rename;
+ if (!buffer_verified(dir_bh) &&
+ !ext4_dirent_csum_verify(old_inode,
+ (struct ext4_dir_entry *)dir_bh->b_data))
+ goto end_rename;
+ set_buffer_verified(dir_bh);
if (le32_to_cpu(PARENT_INO(dir_bh->b_data,
old_dir->i_sb->s_blocksize)) != old_dir->i_ino)
goto end_rename;
ext4_current_time(new_dir);
ext4_mark_inode_dirty(handle, new_dir);
BUFFER_TRACE(new_bh, "call ext4_handle_dirty_metadata");
- retval = ext4_handle_dirty_metadata(handle, new_dir, new_bh);
+ retval = ext4_handle_dirty_dirent_node(handle, new_dir, new_bh);
if (unlikely(retval)) {
ext4_std_error(new_dir->i_sb, retval);
goto end_rename;
PARENT_INO(dir_bh->b_data, new_dir->i_sb->s_blocksize) =
cpu_to_le32(new_dir->i_ino);
BUFFER_TRACE(dir_bh, "call ext4_handle_dirty_metadata");
- retval = ext4_handle_dirty_metadata(handle, old_inode, dir_bh);
+ retval = ext4_handle_dirty_dirent_node(handle, old_inode,
+ dir_bh);
if (retval) {
ext4_std_error(old_dir->i_sb, retval);
goto end_rename;
if (flex_gd == NULL)
goto out3;
+ if (flexbg_size >= UINT_MAX / sizeof(struct ext4_new_flex_group_data))
+ goto out2;
flex_gd->count = flexbg_size;
flex_gd->groups = kmalloc(sizeof(struct ext4_new_group_data) *
ext4_kvfree(o_group_desc);
le16_add_cpu(&es->s_reserved_gdt_blocks, -1);
- err = ext4_handle_dirty_metadata(handle, NULL, EXT4_SB(sb)->s_sbh);
+ err = ext4_handle_dirty_super_now(handle, sb);
if (err)
ext4_std_error(sb, err);
goto exit_err;
}
+ ext4_superblock_csum_set(sb, (struct ext4_super_block *)data);
+
while ((group = ext4_list_backups(sb, &three, &five, &seven)) < last) {
struct buffer_head *bh;
return err;
}
+static struct buffer_head *ext4_get_bitmap(struct super_block *sb, __u64 block)
+{
+ struct buffer_head *bh = sb_getblk(sb, block);
+ if (!bh)
+ return NULL;
+
+ if (bitmap_uptodate(bh))
+ return bh;
+
+ lock_buffer(bh);
+ if (bh_submit_read(bh) < 0) {
+ unlock_buffer(bh);
+ brelse(bh);
+ return NULL;
+ }
+ unlock_buffer(bh);
+
+ return bh;
+}
+
+static int ext4_set_bitmap_checksums(struct super_block *sb,
+ ext4_group_t group,
+ struct ext4_group_desc *gdp,
+ struct ext4_new_group_data *group_data)
+{
+ struct buffer_head *bh;
+
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 0;
+
+ bh = ext4_get_bitmap(sb, group_data->inode_bitmap);
+ if (!bh)
+ return -EIO;
+ ext4_inode_bitmap_csum_set(sb, group, gdp, bh,
+ EXT4_INODES_PER_GROUP(sb) / 8);
+ brelse(bh);
+
+ bh = ext4_get_bitmap(sb, group_data->block_bitmap);
+ if (!bh)
+ return -EIO;
+ ext4_block_bitmap_csum_set(sb, group, gdp, bh,
+ EXT4_BLOCKS_PER_GROUP(sb) / 8);
+ brelse(bh);
+
+ return 0;
+}
+
/*
* ext4_setup_new_descs() will set up the group descriptor descriptors of a flex bg
*/
*/
gdb_bh = sbi->s_group_desc[gdb_num];
/* Update group descriptor block for new group */
- gdp = (struct ext4_group_desc *)((char *)gdb_bh->b_data +
+ gdp = (struct ext4_group_desc *)(gdb_bh->b_data +
gdb_off * EXT4_DESC_SIZE(sb));
memset(gdp, 0, EXT4_DESC_SIZE(sb));
ext4_block_bitmap_set(sb, gdp, group_data->block_bitmap);
ext4_inode_bitmap_set(sb, gdp, group_data->inode_bitmap);
+ err = ext4_set_bitmap_checksums(sb, group, gdp, group_data);
+ if (err) {
+ ext4_std_error(sb, err);
+ break;
+ }
+
ext4_inode_table_set(sb, gdp, group_data->inode_table);
ext4_free_group_clusters_set(sb, gdp,
EXT4_B2C(sbi, group_data->free_blocks_count));
ext4_free_inodes_set(sb, gdp, EXT4_INODES_PER_GROUP(sb));
gdp->bg_flags = cpu_to_le16(*bg_flags);
- gdp->bg_checksum = ext4_group_desc_csum(sbi, group, gdp);
+ ext4_group_desc_csum_set(sb, group, gdp);
err = ext4_handle_dirty_metadata(handle, NULL, gdb_bh);
if (unlikely(err)) {
(1 + ext4_bg_num_gdb(sb, group + i) +
le16_to_cpu(es->s_reserved_gdt_blocks)) : 0;
group_data[i].free_blocks_count = blocks_per_group - overhead;
- if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
+ if (ext4_has_group_desc_csum(sb))
flex_gd->bg_flags[i] = EXT4_BG_BLOCK_UNINIT |
EXT4_BG_INODE_UNINIT;
else
flex_gd->bg_flags[i] = EXT4_BG_INODE_ZEROED;
}
- if (last_group == n_group &&
- EXT4_HAS_RO_COMPAT_FEATURE(sb,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
+ if (last_group == n_group && ext4_has_group_desc_csum(sb))
/* We need to initialize block bitmap of last group. */
flex_gd->bg_flags[i - 1] &= ~EXT4_BG_BLOCK_UNINIT;
#define IS_EXT3_SB(sb) (0)
#endif
+static int ext4_verify_csum_type(struct super_block *sb,
+ struct ext4_super_block *es)
+{
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 1;
+
+ return es->s_checksum_type == EXT4_CRC32C_CHKSUM;
+}
+
+static __le32 ext4_superblock_csum(struct super_block *sb,
+ struct ext4_super_block *es)
+{
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+ int offset = offsetof(struct ext4_super_block, s_checksum);
+ __u32 csum;
+
+ csum = ext4_chksum(sbi, ~0, (char *)es, offset);
+
+ return cpu_to_le32(csum);
+}
+
+int ext4_superblock_csum_verify(struct super_block *sb,
+ struct ext4_super_block *es)
+{
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 1;
+
+ return es->s_checksum == ext4_superblock_csum(sb, es);
+}
+
+void ext4_superblock_csum_set(struct super_block *sb,
+ struct ext4_super_block *es)
+{
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return;
+
+ es->s_checksum = ext4_superblock_csum(sb, es);
+}
+
void *ext4_kvmalloc(size_t size, gfp_t flags)
{
void *ret;
printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: comm %s: %pV\n",
sb->s_id, function, line, current->comm, &vaf);
va_end(args);
+ save_error_info(sb, function, line);
ext4_handle_error(sb);
}
unlock_super(sb);
kobject_put(&sbi->s_kobj);
wait_for_completion(&sbi->s_kobj_unregister);
+ if (sbi->s_chksum_driver)
+ crypto_free_shash(sbi->s_chksum_driver);
kfree(sbi->s_blockgroup_lock);
kfree(sbi);
}
return 0;
}
-__le16 ext4_group_desc_csum(struct ext4_sb_info *sbi, __u32 block_group,
- struct ext4_group_desc *gdp)
+static __le16 ext4_group_desc_csum(struct ext4_sb_info *sbi, __u32 block_group,
+ struct ext4_group_desc *gdp)
{
+ int offset;
__u16 crc = 0;
+ __le32 le_group = cpu_to_le32(block_group);
- if (sbi->s_es->s_feature_ro_compat &
- cpu_to_le32(EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
- int offset = offsetof(struct ext4_group_desc, bg_checksum);
- __le32 le_group = cpu_to_le32(block_group);
-
- crc = crc16(~0, sbi->s_es->s_uuid, sizeof(sbi->s_es->s_uuid));
- crc = crc16(crc, (__u8 *)&le_group, sizeof(le_group));
- crc = crc16(crc, (__u8 *)gdp, offset);
- offset += sizeof(gdp->bg_checksum); /* skip checksum */
- /* for checksum of struct ext4_group_desc do the rest...*/
- if ((sbi->s_es->s_feature_incompat &
- cpu_to_le32(EXT4_FEATURE_INCOMPAT_64BIT)) &&
- offset < le16_to_cpu(sbi->s_es->s_desc_size))
- crc = crc16(crc, (__u8 *)gdp + offset,
- le16_to_cpu(sbi->s_es->s_desc_size) -
- offset);
+ if ((sbi->s_es->s_feature_ro_compat &
+ cpu_to_le32(EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))) {
+ /* Use new metadata_csum algorithm */
+ __u16 old_csum;
+ __u32 csum32;
+
+ old_csum = gdp->bg_checksum;
+ gdp->bg_checksum = 0;
+ csum32 = ext4_chksum(sbi, sbi->s_csum_seed, (__u8 *)&le_group,
+ sizeof(le_group));
+ csum32 = ext4_chksum(sbi, csum32, (__u8 *)gdp,
+ sbi->s_desc_size);
+ gdp->bg_checksum = old_csum;
+
+ crc = csum32 & 0xFFFF;
+ goto out;
}
+ /* old crc16 code */
+ offset = offsetof(struct ext4_group_desc, bg_checksum);
+
+ crc = crc16(~0, sbi->s_es->s_uuid, sizeof(sbi->s_es->s_uuid));
+ crc = crc16(crc, (__u8 *)&le_group, sizeof(le_group));
+ crc = crc16(crc, (__u8 *)gdp, offset);
+ offset += sizeof(gdp->bg_checksum); /* skip checksum */
+ /* for checksum of struct ext4_group_desc do the rest...*/
+ if ((sbi->s_es->s_feature_incompat &
+ cpu_to_le32(EXT4_FEATURE_INCOMPAT_64BIT)) &&
+ offset < le16_to_cpu(sbi->s_es->s_desc_size))
+ crc = crc16(crc, (__u8 *)gdp + offset,
+ le16_to_cpu(sbi->s_es->s_desc_size) -
+ offset);
+
+out:
return cpu_to_le16(crc);
}
-int ext4_group_desc_csum_verify(struct ext4_sb_info *sbi, __u32 block_group,
+int ext4_group_desc_csum_verify(struct super_block *sb, __u32 block_group,
struct ext4_group_desc *gdp)
{
- if ((sbi->s_es->s_feature_ro_compat &
- cpu_to_le32(EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) &&
- (gdp->bg_checksum != ext4_group_desc_csum(sbi, block_group, gdp)))
+ if (ext4_has_group_desc_csum(sb) &&
+ (gdp->bg_checksum != ext4_group_desc_csum(EXT4_SB(sb),
+ block_group, gdp)))
return 0;
return 1;
}
+void ext4_group_desc_csum_set(struct super_block *sb, __u32 block_group,
+ struct ext4_group_desc *gdp)
+{
+ if (!ext4_has_group_desc_csum(sb))
+ return;
+ gdp->bg_checksum = ext4_group_desc_csum(EXT4_SB(sb), block_group, gdp);
+}
+
/* Called at mount-time, super-block is locked */
static int ext4_check_descriptors(struct super_block *sb,
ext4_group_t *first_not_zeroed)
return 0;
}
ext4_lock_group(sb, i);
- if (!ext4_group_desc_csum_verify(sbi, i, gdp)) {
+ if (!ext4_group_desc_csum_verify(sb, i, gdp)) {
ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: "
"Checksum for group %u failed (%u!=%u)",
i, le16_to_cpu(ext4_group_desc_csum(sbi, i,
return count;
}
+static ssize_t trigger_test_error(struct ext4_attr *a,
+ struct ext4_sb_info *sbi,
+ const char *buf, size_t count)
+{
+ int len = count;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ if (len && buf[len-1] == '\n')
+ len--;
+
+ if (len)
+ ext4_error(sbi->s_sb, "%.*s", len, buf);
+ return count;
+}
+
#define EXT4_ATTR_OFFSET(_name,_mode,_show,_store,_elname) \
static struct ext4_attr ext4_attr_##_name = { \
.attr = {.name = __stringify(_name), .mode = _mode }, \
EXT4_RW_ATTR_SBI_UI(mb_stream_req, s_mb_stream_request);
EXT4_RW_ATTR_SBI_UI(mb_group_prealloc, s_mb_group_prealloc);
EXT4_RW_ATTR_SBI_UI(max_writeback_mb_bump, s_max_writeback_mb_bump);
+EXT4_ATTR(trigger_fs_error, 0200, NULL, trigger_test_error);
static struct attribute *ext4_attrs[] = {
ATTR_LIST(delayed_allocation_blocks),
ATTR_LIST(mb_stream_req),
ATTR_LIST(mb_group_prealloc),
ATTR_LIST(max_writeback_mb_bump),
+ ATTR_LIST(trigger_fs_error),
NULL,
};
kthread_stop(ext4_lazyinit_task);
}
+static int set_journal_csum_feature_set(struct super_block *sb)
+{
+ int ret = 1;
+ int compat, incompat;
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+
+ if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
+ /* journal checksum v2 */
+ compat = 0;
+ incompat = JBD2_FEATURE_INCOMPAT_CSUM_V2;
+ } else {
+ /* journal checksum v1 */
+ compat = JBD2_FEATURE_COMPAT_CHECKSUM;
+ incompat = 0;
+ }
+
+ if (test_opt(sb, JOURNAL_ASYNC_COMMIT)) {
+ ret = jbd2_journal_set_features(sbi->s_journal,
+ compat, 0,
+ JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT |
+ incompat);
+ } else if (test_opt(sb, JOURNAL_CHECKSUM)) {
+ ret = jbd2_journal_set_features(sbi->s_journal,
+ compat, 0,
+ incompat);
+ jbd2_journal_clear_features(sbi->s_journal, 0, 0,
+ JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT);
+ } else {
+ jbd2_journal_clear_features(sbi->s_journal,
+ JBD2_FEATURE_COMPAT_CHECKSUM, 0,
+ JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT |
+ JBD2_FEATURE_INCOMPAT_CSUM_V2);
+ }
+
+ return ret;
+}
+
static int ext4_fill_super(struct super_block *sb, void *data, int silent)
{
char *orig_data = kstrdup(data, GFP_KERNEL);
goto out_free_orig;
}
sb->s_fs_info = sbi;
+ sbi->s_sb = sb;
sbi->s_mount_opt = 0;
sbi->s_resuid = make_kuid(&init_user_ns, EXT4_DEF_RESUID);
sbi->s_resgid = make_kgid(&init_user_ns, EXT4_DEF_RESGID);
* Note: s_es must be initialized as soon as possible because
* some ext4 macro-instructions depend on its value
*/
- es = (struct ext4_super_block *) (((char *)bh->b_data) + offset);
+ es = (struct ext4_super_block *) (bh->b_data + offset);
sbi->s_es = es;
sb->s_magic = le16_to_cpu(es->s_magic);
if (sb->s_magic != EXT4_SUPER_MAGIC)
goto cantfind_ext4;
sbi->s_kbytes_written = le64_to_cpu(es->s_kbytes_written);
+ /* Warn if metadata_csum and gdt_csum are both set. */
+ if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) &&
+ EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
+ ext4_warning(sb, KERN_INFO "metadata_csum and uninit_bg are "
+ "redundant flags; please run fsck.");
+
+ /* Check for a known checksum algorithm */
+ if (!ext4_verify_csum_type(sb, es)) {
+ ext4_msg(sb, KERN_ERR, "VFS: Found ext4 filesystem with "
+ "unknown checksum algorithm.");
+ silent = 1;
+ goto cantfind_ext4;
+ }
+
+ /* Load the checksum driver */
+ if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
+ sbi->s_chksum_driver = crypto_alloc_shash("crc32c", 0, 0);
+ if (IS_ERR(sbi->s_chksum_driver)) {
+ ext4_msg(sb, KERN_ERR, "Cannot load crc32c driver.");
+ ret = PTR_ERR(sbi->s_chksum_driver);
+ sbi->s_chksum_driver = NULL;
+ goto failed_mount;
+ }
+ }
+
+ /* Check superblock checksum */
+ if (!ext4_superblock_csum_verify(sb, es)) {
+ ext4_msg(sb, KERN_ERR, "VFS: Found ext4 filesystem with "
+ "invalid superblock checksum. Run e2fsck?");
+ silent = 1;
+ goto cantfind_ext4;
+ }
+
+ /* Precompute checksum seed for all metadata */
+ if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ sbi->s_csum_seed = ext4_chksum(sbi, ~0, es->s_uuid,
+ sizeof(es->s_uuid));
+
/* Set defaults before we parse the mount options */
def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
set_opt(sb, INIT_INODE_TABLE);
"Can't read superblock on 2nd try");
goto failed_mount;
}
- es = (struct ext4_super_block *)(((char *)bh->b_data) + offset);
+ es = (struct ext4_super_block *)(bh->b_data + offset);
sbi->s_es = es;
if (es->s_magic != cpu_to_le16(EXT4_SUPER_MAGIC)) {
ext4_msg(sb, KERN_ERR,
GFP_KERNEL);
if (sbi->s_group_desc == NULL) {
ext4_msg(sb, KERN_ERR, "not enough memory");
+ ret = -ENOMEM;
goto failed_mount;
}
}
if (err) {
ext4_msg(sb, KERN_ERR, "insufficient memory");
+ ret = err;
goto failed_mount3;
}
goto no_journal;
}
- if (ext4_blocks_count(es) > 0xffffffffULL &&
+ if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_64BIT) &&
!jbd2_journal_set_features(EXT4_SB(sb)->s_journal, 0, 0,
JBD2_FEATURE_INCOMPAT_64BIT)) {
ext4_msg(sb, KERN_ERR, "Failed to set 64-bit journal feature");
goto failed_mount_wq;
}
- if (test_opt(sb, JOURNAL_ASYNC_COMMIT)) {
- jbd2_journal_set_features(sbi->s_journal,
- JBD2_FEATURE_COMPAT_CHECKSUM, 0,
- JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT);
- } else if (test_opt(sb, JOURNAL_CHECKSUM)) {
- jbd2_journal_set_features(sbi->s_journal,
- JBD2_FEATURE_COMPAT_CHECKSUM, 0, 0);
- jbd2_journal_clear_features(sbi->s_journal, 0, 0,
- JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT);
- } else {
- jbd2_journal_clear_features(sbi->s_journal,
- JBD2_FEATURE_COMPAT_CHECKSUM, 0,
- JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT);
+ if (!set_journal_csum_feature_set(sb)) {
+ ext4_msg(sb, KERN_ERR, "Failed to set journal checksum "
+ "feature set");
+ goto failed_mount_wq;
}
/* We have now updated the journal if required, so we can
goto failed_mount4;
}
- ext4_setup_super(sb, es, sb->s_flags & MS_RDONLY);
+ if (ext4_setup_super(sb, es, sb->s_flags & MS_RDONLY))
+ sb->s_flags |= MS_RDONLY;
/* determine the minimum size of new large inodes, if present */
if (sbi->s_inode_size > EXT4_GOOD_OLD_INODE_SIZE) {
}
ext4_ext_init(sb);
- err = ext4_mb_init(sb, needs_recovery);
+ err = ext4_mb_init(sb);
if (err) {
ext4_msg(sb, KERN_ERR, "failed to initialize mballoc (%d)",
err);
brelse(sbi->s_group_desc[i]);
ext4_kvfree(sbi->s_group_desc);
failed_mount:
+ if (sbi->s_chksum_driver)
+ crypto_free_shash(sbi->s_chksum_driver);
if (sbi->s_proc) {
remove_proc_entry("options", sbi->s_proc);
remove_proc_entry(sb->s_id, ext4_proc_root);
goto out_bdev;
}
- es = (struct ext4_super_block *) (((char *)bh->b_data) + offset);
+ es = (struct ext4_super_block *) (bh->b_data + offset);
if ((le16_to_cpu(es->s_magic) != EXT4_SUPER_MAGIC) ||
!(le32_to_cpu(es->s_feature_incompat) &
EXT4_FEATURE_INCOMPAT_JOURNAL_DEV)) {
&EXT4_SB(sb)->s_freeinodes_counter));
sb->s_dirt = 0;
BUFFER_TRACE(sbh, "marking dirty");
+ ext4_superblock_csum_set(sb, es);
mark_buffer_dirty(sbh);
if (sync) {
error = sync_dirty_buffer(sbh);
struct ext4_group_desc *gdp =
ext4_get_group_desc(sb, g, NULL);
- if (!ext4_group_desc_csum_verify(sbi, g, gdp)) {
+ if (!ext4_group_desc_csum_verify(sb, g, gdp)) {
ext4_msg(sb, KERN_ERR,
"ext4_remount: Checksum for group %u failed (%u!=%u)",
g, le16_to_cpu(ext4_group_desc_csum(sbi, g, gdp)),
NULL
};
+static __le32 ext4_xattr_block_csum(struct inode *inode,
+ sector_t block_nr,
+ struct ext4_xattr_header *hdr)
+{
+ struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
+ struct ext4_inode_info *ei = EXT4_I(inode);
+ __u32 csum, old;
+
+ old = hdr->h_checksum;
+ hdr->h_checksum = 0;
+ if (le32_to_cpu(hdr->h_refcount) != 1) {
+ block_nr = cpu_to_le64(block_nr);
+ csum = ext4_chksum(sbi, sbi->s_csum_seed, (__u8 *)&block_nr,
+ sizeof(block_nr));
+ } else
+ csum = ei->i_csum_seed;
+ csum = ext4_chksum(sbi, csum, (__u8 *)hdr,
+ EXT4_BLOCK_SIZE(inode->i_sb));
+ hdr->h_checksum = old;
+ return cpu_to_le32(csum);
+}
+
+static int ext4_xattr_block_csum_verify(struct inode *inode,
+ sector_t block_nr,
+ struct ext4_xattr_header *hdr)
+{
+ if (EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) &&
+ (hdr->h_checksum != ext4_xattr_block_csum(inode, block_nr, hdr)))
+ return 0;
+ return 1;
+}
+
+static void ext4_xattr_block_csum_set(struct inode *inode,
+ sector_t block_nr,
+ struct ext4_xattr_header *hdr)
+{
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return;
+
+ hdr->h_checksum = ext4_xattr_block_csum(inode, block_nr, hdr);
+}
+
+static inline int ext4_handle_dirty_xattr_block(handle_t *handle,
+ struct inode *inode,
+ struct buffer_head *bh)
+{
+ ext4_xattr_block_csum_set(inode, bh->b_blocknr, BHDR(bh));
+ return ext4_handle_dirty_metadata(handle, inode, bh);
+}
+
static inline const struct xattr_handler *
ext4_xattr_handler(int name_index)
{
}
static inline int
-ext4_xattr_check_block(struct buffer_head *bh)
+ext4_xattr_check_block(struct inode *inode, struct buffer_head *bh)
{
+ int error;
+
+ if (buffer_verified(bh))
+ return 0;
+
if (BHDR(bh)->h_magic != cpu_to_le32(EXT4_XATTR_MAGIC) ||
BHDR(bh)->h_blocks != cpu_to_le32(1))
return -EIO;
- return ext4_xattr_check_names(BFIRST(bh), bh->b_data + bh->b_size);
+ if (!ext4_xattr_block_csum_verify(inode, bh->b_blocknr, BHDR(bh)))
+ return -EIO;
+ error = ext4_xattr_check_names(BFIRST(bh), bh->b_data + bh->b_size);
+ if (!error)
+ set_buffer_verified(bh);
+ return error;
}
static inline int
goto cleanup;
ea_bdebug(bh, "b_count=%d, refcount=%d",
atomic_read(&(bh->b_count)), le32_to_cpu(BHDR(bh)->h_refcount));
- if (ext4_xattr_check_block(bh)) {
+ if (ext4_xattr_check_block(inode, bh)) {
bad_block:
EXT4_ERROR_INODE(inode, "bad block %llu",
EXT4_I(inode)->i_file_acl);
goto cleanup;
ea_bdebug(bh, "b_count=%d, refcount=%d",
atomic_read(&(bh->b_count)), le32_to_cpu(BHDR(bh)->h_refcount));
- if (ext4_xattr_check_block(bh)) {
+ if (ext4_xattr_check_block(inode, bh)) {
EXT4_ERROR_INODE(inode, "bad block %llu",
EXT4_I(inode)->i_file_acl);
error = -EIO;
if (ce)
mb_cache_entry_release(ce);
unlock_buffer(bh);
- error = ext4_handle_dirty_metadata(handle, inode, bh);
+ error = ext4_handle_dirty_xattr_block(handle, inode, bh);
if (IS_SYNC(inode))
ext4_handle_sync(handle);
dquot_free_block(inode, 1);
ea_bdebug(bs->bh, "b_count=%d, refcount=%d",
atomic_read(&(bs->bh->b_count)),
le32_to_cpu(BHDR(bs->bh)->h_refcount));
- if (ext4_xattr_check_block(bs->bh)) {
+ if (ext4_xattr_check_block(inode, bs->bh)) {
EXT4_ERROR_INODE(inode, "bad block %llu",
EXT4_I(inode)->i_file_acl);
error = -EIO;
if (error == -EIO)
goto bad_block;
if (!error)
- error = ext4_handle_dirty_metadata(handle,
- inode,
- bs->bh);
+ error = ext4_handle_dirty_xattr_block(handle,
+ inode,
+ bs->bh);
if (error)
goto cleanup;
goto inserted;
ea_bdebug(new_bh, "reusing; refcount now=%d",
le32_to_cpu(BHDR(new_bh)->h_refcount));
unlock_buffer(new_bh);
- error = ext4_handle_dirty_metadata(handle,
- inode,
- new_bh);
+ error = ext4_handle_dirty_xattr_block(handle,
+ inode,
+ new_bh);
if (error)
goto cleanup_dquot;
}
set_buffer_uptodate(new_bh);
unlock_buffer(new_bh);
ext4_xattr_cache_insert(new_bh);
- error = ext4_handle_dirty_metadata(handle,
- inode, new_bh);
+ error = ext4_handle_dirty_xattr_block(handle,
+ inode, new_bh);
if (error)
goto cleanup;
}
error = -EIO;
if (!bh)
goto cleanup;
- if (ext4_xattr_check_block(bh)) {
+ if (ext4_xattr_check_block(inode, bh)) {
EXT4_ERROR_INODE(inode, "bad block %llu",
EXT4_I(inode)->i_file_acl);
error = -EIO;
__le32 h_refcount; /* reference count */
__le32 h_blocks; /* number of disk blocks used */
__le32 h_hash; /* hash value of all attributes */
- __u32 h_reserved[4]; /* zero right now */
+ __le32 h_checksum; /* crc32c(uuid+id+xattrblock) */
+ /* id = inum if refcount=1, blknum otherwise */
+ __u32 h_reserved[3]; /* zero right now */
};
struct ext4_xattr_ibody_header {
*bh = sb_bread(sb, phys);
if (*bh == NULL) {
- fat_msg(sb, KERN_ERR, "Directory bread(block %llu) failed",
- (llu)phys);
+ fat_msg_ratelimit(sb, KERN_ERR,
+ "Directory bread(block %llu) failed", (llu)phys);
/* skip this block */
*pos = (iblock + 1) << sb->s_blocksize_bits;
goto next;
int fatent_shift;
struct fatent_operations *fatent_ops;
struct inode *fat_inode;
+ struct inode *fsinfo_inode;
struct ratelimit_state ratelimit;
__fat_fs_error(sb, __ratelimit(&MSDOS_SB(sb)->ratelimit), fmt , ## args)
__printf(3, 4) __cold
void fat_msg(struct super_block *sb, const char *level, const char *fmt, ...);
+#define fat_msg_ratelimit(sb, level, fmt, args...) \
+ do { \
+ if (__ratelimit(&MSDOS_SB(sb)->ratelimit)) \
+ fat_msg(sb, level, fmt, ## args); \
+ } while (0)
extern int fat_clusters_flush(struct super_block *sb);
extern int fat_chain_add(struct inode *inode, int new_dclus, int nr_cluster);
extern void fat_time_fat2unix(struct msdos_sb_info *sbi, struct timespec *ts,
}
}
+static void mark_fsinfo_dirty(struct super_block *sb)
+{
+ struct msdos_sb_info *sbi = MSDOS_SB(sb);
+
+ if (sb->s_flags & MS_RDONLY || sbi->fat_bits != 32)
+ return;
+
+ __mark_inode_dirty(sbi->fsinfo_inode, I_DIRTY_SYNC);
+}
+
static inline int fat_ent_update_ptr(struct super_block *sb,
struct fat_entry *fatent,
int offset, sector_t blocknr)
sbi->prev_free = entry;
if (sbi->free_clusters != -1)
sbi->free_clusters--;
- sb->s_dirt = 1;
cluster[idx_clus] = entry;
idx_clus++;
/* Couldn't allocate the free entries */
sbi->free_clusters = 0;
sbi->free_clus_valid = 1;
- sb->s_dirt = 1;
err = -ENOSPC;
out:
unlock_fat(sbi);
+ mark_fsinfo_dirty(sb);
fatent_brelse(&fatent);
if (!err) {
if (inode_needs_sync(inode))
struct fat_entry fatent;
struct buffer_head *bhs[MAX_BUF_PER_PAGE];
int i, err, nr_bhs;
- int first_cl = cluster;
+ int first_cl = cluster, dirty_fsinfo = 0;
nr_bhs = 0;
fatent_init(&fatent);
ops->ent_put(&fatent, FAT_ENT_FREE);
if (sbi->free_clusters != -1) {
sbi->free_clusters++;
- sb->s_dirt = 1;
+ dirty_fsinfo = 1;
}
if (nr_bhs + fatent.nr_bhs > MAX_BUF_PER_PAGE) {
for (i = 0; i < nr_bhs; i++)
brelse(bhs[i]);
unlock_fat(sbi);
+ if (dirty_fsinfo)
+ mark_fsinfo_dirty(sb);
return err;
}
}
sbi->free_clusters = free;
sbi->free_clus_valid = 1;
- sb->s_dirt = 1;
+ mark_fsinfo_dirty(sb);
fatent_brelse(&fatent);
out:
unlock_fat(sbi);
fat_detach(inode);
}
-static void fat_write_super(struct super_block *sb)
-{
- lock_super(sb);
- sb->s_dirt = 0;
-
- if (!(sb->s_flags & MS_RDONLY))
- fat_clusters_flush(sb);
- unlock_super(sb);
-}
-
-static int fat_sync_fs(struct super_block *sb, int wait)
-{
- int err = 0;
-
- if (sb->s_dirt) {
- lock_super(sb);
- sb->s_dirt = 0;
- err = fat_clusters_flush(sb);
- unlock_super(sb);
- }
-
- return err;
-}
-
static void fat_put_super(struct super_block *sb)
{
struct msdos_sb_info *sbi = MSDOS_SB(sb);
- if (sb->s_dirt)
- fat_write_super(sb);
-
+ iput(sbi->fsinfo_inode);
iput(sbi->fat_inode);
unload_nls(sbi->nls_disk);
static int fat_write_inode(struct inode *inode, struct writeback_control *wbc)
{
- return __fat_write_inode(inode, wbc->sync_mode == WB_SYNC_ALL);
+ int err;
+
+ if (inode->i_ino == MSDOS_FSINFO_INO) {
+ struct super_block *sb = inode->i_sb;
+
+ lock_super(sb);
+ err = fat_clusters_flush(sb);
+ unlock_super(sb);
+ } else
+ err = __fat_write_inode(inode, wbc->sync_mode == WB_SYNC_ALL);
+
+ return err;
}
int fat_sync_inode(struct inode *inode)
.write_inode = fat_write_inode,
.evict_inode = fat_evict_inode,
.put_super = fat_put_super,
- .write_super = fat_write_super,
- .sync_fs = fat_sync_fs,
.statfs = fat_statfs,
.remount_fs = fat_remount,
}
static int
-fat_encode_fh(struct dentry *de, __u32 *fh, int *lenp, int connectable)
+fat_encode_fh(struct inode *inode, __u32 *fh, int *lenp, struct inode *parent)
{
int len = *lenp;
- struct inode *inode = de->d_inode;
u32 ipos_h, ipos_m, ipos_l;
if (len < 5) {
fh[1] = inode->i_generation;
fh[2] = ipos_h;
fh[3] = ipos_m | MSDOS_I(inode)->i_logstart;
- spin_lock(&de->d_lock);
- fh[4] = ipos_l | MSDOS_I(de->d_parent->d_inode)->i_logstart;
- spin_unlock(&de->d_lock);
+ fh[4] = ipos_l;
+ if (parent)
+ fh[4] |= MSDOS_I(parent)->i_logstart;
return 3;
}
void (*setup)(struct super_block *))
{
struct inode *root_inode = NULL, *fat_inode = NULL;
+ struct inode *fsinfo_inode = NULL;
struct buffer_head *bh;
struct fat_boot_sector *b;
struct msdos_sb_info *sbi;
goto out_fail;
MSDOS_I(fat_inode)->i_pos = 0;
sbi->fat_inode = fat_inode;
+
+ fsinfo_inode = new_inode(sb);
+ if (!fsinfo_inode)
+ goto out_fail;
+ fsinfo_inode->i_ino = MSDOS_FSINFO_INO;
+ sbi->fsinfo_inode = fsinfo_inode;
+ insert_inode_hash(fsinfo_inode);
+
root_inode = new_inode(sb);
if (!root_inode)
goto out_fail;
fat_msg(sb, KERN_INFO, "Can't find a valid FAT filesystem");
out_fail:
+ if (fsinfo_inode)
+ iput(fsinfo_inode);
if (fat_inode)
iput(fat_inode);
unload_nls(sbi->nls_io);
SYSCALL_DEFINE3(fcntl, unsigned int, fd, unsigned int, cmd, unsigned long, arg)
{
struct file *filp;
+ int fput_needed;
long err = -EBADF;
- filp = fget_raw(fd);
+ filp = fget_raw_light(fd, &fput_needed);
if (!filp)
goto out;
if (unlikely(filp->f_mode & FMODE_PATH)) {
- if (!check_fcntl_cmd(cmd)) {
- fput(filp);
- goto out;
- }
+ if (!check_fcntl_cmd(cmd))
+ goto out1;
}
err = security_file_fcntl(filp, cmd, arg);
- if (err) {
- fput(filp);
- return err;
- }
+ if (!err)
+ err = do_fcntl(fd, cmd, arg, filp);
- err = do_fcntl(fd, cmd, arg, filp);
-
- fput(filp);
+out1:
+ fput_light(filp, fput_needed);
out:
return err;
}
unsigned long, arg)
{
struct file * filp;
- long err;
+ long err = -EBADF;
+ int fput_needed;
- err = -EBADF;
- filp = fget_raw(fd);
+ filp = fget_raw_light(fd, &fput_needed);
if (!filp)
goto out;
if (unlikely(filp->f_mode & FMODE_PATH)) {
- if (!check_fcntl_cmd(cmd)) {
- fput(filp);
- goto out;
- }
+ if (!check_fcntl_cmd(cmd))
+ goto out1;
}
err = security_file_fcntl(filp, cmd, arg);
- if (err) {
- fput(filp);
- return err;
- }
- err = -EBADF;
+ if (err)
+ goto out1;
switch (cmd) {
case F_GETLK64:
err = do_fcntl(fd, cmd, arg, filp);
break;
}
- fput(filp);
+out1:
+ fput_light(filp, fput_needed);
out:
return err;
}
.max_files = NR_FILE
};
-DECLARE_LGLOCK(files_lglock);
DEFINE_LGLOCK(files_lglock);
/* SLAB cache for file structures */
*/
void file_sb_list_add(struct file *file, struct super_block *sb)
{
- lg_local_lock(files_lglock);
+ lg_local_lock(&files_lglock);
__file_sb_list_add(file, sb);
- lg_local_unlock(files_lglock);
+ lg_local_unlock(&files_lglock);
}
/**
void file_sb_list_del(struct file *file)
{
if (!list_empty(&file->f_u.fu_list)) {
- lg_local_lock_cpu(files_lglock, file_list_cpu(file));
+ lg_local_lock_cpu(&files_lglock, file_list_cpu(file));
list_del_init(&file->f_u.fu_list);
- lg_local_unlock_cpu(files_lglock, file_list_cpu(file));
+ lg_local_unlock_cpu(&files_lglock, file_list_cpu(file));
}
}
struct file *f;
retry:
- lg_global_lock(files_lglock);
+ lg_global_lock(&files_lglock);
do_file_list_for_each_entry(sb, f) {
struct vfsmount *mnt;
if (!S_ISREG(f->f_path.dentry->d_inode->i_mode))
file_release_write(f);
mnt = mntget(f->f_path.mnt);
/* This can sleep, so we can't hold the spinlock. */
- lg_global_unlock(files_lglock);
+ lg_global_unlock(&files_lglock);
mnt_drop_write(mnt);
mntput(mnt);
goto retry;
} while_file_list_for_each_entry;
- lg_global_unlock(files_lglock);
+ lg_global_unlock(&files_lglock);
}
void __init files_init(unsigned long mempages)
n = (mempages * (PAGE_SIZE / 1024)) / 10;
files_stat.max_files = max_t(unsigned long, n, NR_FILE);
files_defer_init();
- lg_lock_init(files_lglock);
+ lg_lock_init(&files_lglock, "files_lglock");
percpu_counter_init(&nr_files, 0);
}
if (err)
goto out;
- file_update_time(file);
+ err = file_update_time(file);
+ if (err)
+ goto out;
if (file->f_flags & O_DIRECT) {
written = generic_file_direct_write(iocb, iov, &nr_segs,
return ERR_PTR(err);
}
-static int fuse_encode_fh(struct dentry *dentry, u32 *fh, int *max_len,
- int connectable)
+static int fuse_encode_fh(struct inode *inode, u32 *fh, int *max_len,
+ struct inode *parent)
{
- struct inode *inode = dentry->d_inode;
- bool encode_parent = connectable && !S_ISDIR(inode->i_mode);
- int len = encode_parent ? 6 : 3;
+ int len = parent ? 6 : 3;
u64 nodeid;
u32 generation;
fh[1] = (u32)(nodeid & 0xffffffff);
fh[2] = generation;
- if (encode_parent) {
- struct inode *parent;
-
- spin_lock(&dentry->d_lock);
- parent = dentry->d_parent->d_inode;
+ if (parent) {
nodeid = get_fuse_inode(parent)->nodeid;
generation = parent->i_generation;
- spin_unlock(&dentry->d_lock);
fh[3] = (u32)(nodeid >> 32);
fh[4] = (u32)(nodeid & 0xffffffff);
}
*max_len = len;
- return encode_parent ? 0x82 : 0x81;
+ return parent ? 0x82 : 0x81;
}
static struct dentry *fuse_fh_to_dentry(struct super_block *sb,
#define GFS2_LARGE_FH_SIZE 8
#define GFS2_OLD_FH_SIZE 10
-static int gfs2_encode_fh(struct dentry *dentry, __u32 *p, int *len,
- int connectable)
+static int gfs2_encode_fh(struct inode *inode, __u32 *p, int *len,
+ struct inode *parent)
{
__be32 *fh = (__force __be32 *)p;
- struct inode *inode = dentry->d_inode;
struct super_block *sb = inode->i_sb;
struct gfs2_inode *ip = GFS2_I(inode);
- if (connectable && (*len < GFS2_LARGE_FH_SIZE)) {
+ if (parent && (*len < GFS2_LARGE_FH_SIZE)) {
*len = GFS2_LARGE_FH_SIZE;
return 255;
} else if (*len < GFS2_SMALL_FH_SIZE) {
fh[3] = cpu_to_be32(ip->i_no_addr & 0xFFFFFFFF);
*len = GFS2_SMALL_FH_SIZE;
- if (!connectable || inode == sb->s_root->d_inode)
+ if (!parent || inode == sb->s_root->d_inode)
return *len;
- spin_lock(&dentry->d_lock);
- inode = dentry->d_parent->d_inode;
- ip = GFS2_I(inode);
- igrab(inode);
- spin_unlock(&dentry->d_lock);
+ ip = GFS2_I(parent);
fh[4] = cpu_to_be32(ip->i_no_formal_ino >> 32);
fh[5] = cpu_to_be32(ip->i_no_formal_ino & 0xFFFFFFFF);
fh[7] = cpu_to_be32(ip->i_no_addr & 0xFFFFFFFF);
*len = GFS2_LARGE_FH_SIZE;
- iput(inode);
-
return *len;
}
static int chk_if_allocated(struct super_block *s, secno sec, char *msg)
{
struct quad_buffer_head qbh;
- u32 *bmp;
+ __le32 *bmp;
if (!(bmp = hpfs_map_bitmap(s, sec >> 14, &qbh, "chk"))) goto fail;
- if ((cpu_to_le32(bmp[(sec & 0x3fff) >> 5]) >> (sec & 0x1f)) & 1) {
+ if ((le32_to_cpu(bmp[(sec & 0x3fff) >> 5]) >> (sec & 0x1f)) & 1) {
hpfs_error(s, "sector '%s' - %08x not allocated in bitmap", msg, sec);
goto fail1;
}
static secno alloc_in_bmp(struct super_block *s, secno near, unsigned n, unsigned forward)
{
struct quad_buffer_head qbh;
- unsigned *bmp;
+ __le32 *bmp;
unsigned bs = near & ~0x3fff;
unsigned nr = (near & 0x3fff) & ~(n - 1);
/*unsigned mnr;*/
int hpfs_alloc_if_possible(struct super_block *s, secno sec)
{
struct quad_buffer_head qbh;
- u32 *bmp;
+ __le32 *bmp;
if (!(bmp = hpfs_map_bitmap(s, sec >> 14, &qbh, "aip"))) goto end;
if (le32_to_cpu(bmp[(sec & 0x3fff) >> 5]) & (1 << (sec & 0x1f))) {
bmp[(sec & 0x3fff) >> 5] &= cpu_to_le32(~(1 << (sec & 0x1f)));
void hpfs_free_sectors(struct super_block *s, secno sec, unsigned n)
{
struct quad_buffer_head qbh;
- u32 *bmp;
+ __le32 *bmp;
struct hpfs_sb_info *sbi = hpfs_sb(s);
/*printk("2 - ");*/
if (!n) return;
int n_bmps = (hpfs_sb(s)->sb_fs_size + 0x4000 - 1) >> 14;
int b = hpfs_sb(s)->sb_c_bitmap & 0x0fffffff;
int i, j;
- u32 *bmp;
+ __le32 *bmp;
struct quad_buffer_head qbh;
if ((bmp = hpfs_map_dnode_bitmap(s, &qbh))) {
for (j = 0; j < 512; j++) {
hpfs_free_sectors(s, dno, 4);
} else {
struct quad_buffer_head qbh;
- u32 *bmp;
+ __le32 *bmp;
unsigned ssec = (dno - hpfs_sb(s)->sb_dirband_start) / 4;
if (!(bmp = hpfs_map_dnode_bitmap(s, &qbh))) {
return;
int c1, c2 = 0;
go_down:
if (hpfs_sb(s)->sb_chk) if (hpfs_stop_cycles(s, a, &c1, &c2, "hpfs_bplus_lookup")) return -1;
- if (btree->internal) {
+ if (bp_internal(btree)) {
for (i = 0; i < btree->n_used_nodes; i++)
if (le32_to_cpu(btree->u.internal[i].file_secno) > sec) {
a = le32_to_cpu(btree->u.internal[i].down);
brelse(bh);
return -1;
}
- if (btree->internal) {
+ if (bp_internal(btree)) {
a = le32_to_cpu(btree->u.internal[n].down);
btree->u.internal[n].file_secno = cpu_to_le32(-1);
mark_buffer_dirty(bh);
}
if (a == node && fnod) {
anode->up = cpu_to_le32(node);
- anode->btree.fnode_parent = 1;
+ anode->btree.flags |= BP_fnode_parent;
anode->btree.n_used_nodes = btree->n_used_nodes;
anode->btree.first_free = btree->first_free;
anode->btree.n_free_nodes = 40 - anode->btree.n_used_nodes;
memcpy(&anode->u, &btree->u, btree->n_used_nodes * 12);
- btree->internal = 1;
+ btree->flags |= BP_internal;
btree->n_free_nodes = 11;
btree->n_used_nodes = 1;
btree->first_free = cpu_to_le16((char *)&(btree->u.internal[1]) - (char *)btree);
hpfs_free_sectors(s, ra, 1);
if ((anode = hpfs_map_anode(s, na, &bh))) {
anode->up = cpu_to_le32(up);
- anode->btree.fnode_parent = up == node && fnod;
+ if (up == node && fnod)
+ anode->btree.flags |= BP_fnode_parent;
+ else
+ anode->btree.flags &= ~BP_fnode_parent;
mark_buffer_dirty(bh);
brelse(bh);
}
if ((new_anode = hpfs_alloc_anode(s, a, &na, &bh))) {
anode = new_anode;
/*anode->up = cpu_to_le32(up != -1 ? up : ra);*/
- anode->btree.internal = 1;
+ anode->btree.flags |= BP_internal;
anode->btree.n_used_nodes = 1;
anode->btree.n_free_nodes = 59;
anode->btree.first_free = cpu_to_le16(16);
}
if ((anode = hpfs_map_anode(s, na, &bh))) {
anode->up = cpu_to_le32(node);
- if (fnod) anode->btree.fnode_parent = 1;
+ if (fnod)
+ anode->btree.flags |= BP_fnode_parent;
mark_buffer_dirty(bh);
brelse(bh);
}
}
ranode->up = cpu_to_le32(node);
memcpy(&ranode->btree, btree, le16_to_cpu(btree->first_free));
- if (fnod) ranode->btree.fnode_parent = 1;
- ranode->btree.n_free_nodes = (ranode->btree.internal ? 60 : 40) - ranode->btree.n_used_nodes;
- if (ranode->btree.internal) for (n = 0; n < ranode->btree.n_used_nodes; n++) {
+ if (fnod)
+ ranode->btree.flags |= BP_fnode_parent;
+ ranode->btree.n_free_nodes = (bp_internal(&ranode->btree) ? 60 : 40) - ranode->btree.n_used_nodes;
+ if (bp_internal(&ranode->btree)) for (n = 0; n < ranode->btree.n_used_nodes; n++) {
struct anode *unode;
if ((unode = hpfs_map_anode(s, le32_to_cpu(ranode->u.internal[n].down), &bh1))) {
unode->up = cpu_to_le32(ra);
- unode->btree.fnode_parent = 0;
+ unode->btree.flags &= ~BP_fnode_parent;
mark_buffer_dirty(bh1);
brelse(bh1);
}
}
- btree->internal = 1;
+ btree->flags |= BP_internal;
btree->n_free_nodes = fnod ? 10 : 58;
btree->n_used_nodes = 2;
btree->first_free = cpu_to_le16((char *)&btree->u.internal[2] - (char *)btree);
int d1, d2;
go_down:
d2 = 0;
- while (btree1->internal) {
+ while (bp_internal(btree1)) {
ano = le32_to_cpu(btree1->u.internal[pos].down);
if (level) brelse(bh);
if (hpfs_sb(s)->sb_chk)
btree->n_free_nodes = 8;
btree->n_used_nodes = 0;
btree->first_free = cpu_to_le16(8);
- btree->internal = 0;
+ btree->flags &= ~BP_internal;
mark_buffer_dirty(bh);
} else hpfs_free_sectors(s, f, 1);
brelse(bh);
return;
}
- while (btree->internal) {
+ while (bp_internal(btree)) {
nodes = btree->n_used_nodes + btree->n_free_nodes;
for (i = 0; i < btree->n_used_nodes; i++)
if (le32_to_cpu(btree->u.internal[i].file_secno) >= secs) goto f;
struct extended_attribute *ea;
struct extended_attribute *ea_end;
if (!(fnode = hpfs_map_fnode(s, fno, &bh))) return;
- if (!fnode->dirflag) hpfs_remove_btree(s, &fnode->btree);
+ if (!fnode_is_dir(fnode)) hpfs_remove_btree(s, &fnode->btree);
else hpfs_remove_dtree(s, le32_to_cpu(fnode->u.external[0].disk_secno));
ea_end = fnode_end_ea(fnode);
for (ea = fnode_ea(fnode); ea < ea_end; ea = next_ea(ea))
- if (ea->indirect)
- hpfs_ea_remove(s, ea_sec(ea), ea->anode, ea_len(ea));
- hpfs_ea_ext_remove(s, le32_to_cpu(fnode->ea_secno), fnode->ea_anode, le32_to_cpu(fnode->ea_size_l));
+ if (ea_indirect(ea))
+ hpfs_ea_remove(s, ea_sec(ea), ea_in_anode(ea), ea_len(ea));
+ hpfs_ea_ext_remove(s, le32_to_cpu(fnode->ea_secno), fnode_in_anode(fnode), le32_to_cpu(fnode->ea_size_l));
brelse(bh);
hpfs_free_sectors(s, fno, 1);
}
void hpfs_mark_4buffers_dirty(struct quad_buffer_head *qbh)
{
- PRINTK(("hpfs_mark_4buffers_dirty\n"));
memcpy(qbh->bh[0]->b_data, qbh->data, 512);
memcpy(qbh->bh[1]->b_data, qbh->data + 512, 512);
memcpy(qbh->bh[2]->b_data, qbh->data + 2 * 512, 512);
ret = -EIOERROR;
goto out;
}
- if (!fno->dirflag) {
+ if (!fnode_is_dir(fno)) {
e = 1;
hpfs_error(inode->i_sb, "not a directory, fnode %08lx",
(unsigned long)inode->i_ino);
}
de->length = cpu_to_le16(36);
de->down = 1;
- *(dnode_secno *)((char *)de + 32) = cpu_to_le32(ptr);
+ *(__le32 *)((char *)de + 32) = cpu_to_le32(ptr);
}
}
memmove((char *)de + d_size, de, (char *)de_end - (char *)de);
memset(de, 0, d_size);
if (down_ptr) {
- *(dnode_secno *)((char *)de + d_size - 4) = cpu_to_le32(down_ptr);
+ *(__le32 *)((char *)de + d_size - 4) = cpu_to_le32(down_ptr);
de->down = 1;
}
de->length = cpu_to_le16(d_size);
del->down = 0;
d1->first_free = cpu_to_le32(le32_to_cpu(d1->first_free) - 4);
} else if (down)
- *(dnode_secno *) ((void *) del + le16_to_cpu(del->length) - 4) = cpu_to_le32(down);
+ *(__le32 *) ((void *) del + le16_to_cpu(del->length) - 4) = cpu_to_le32(down);
} else goto endm;
if (!(de_cp = kmalloc(le16_to_cpu(de_prev->length), GFP_NOFS))) {
printk("HPFS: out of memory for dtree balancing\n");
de_prev->down = 1;
dnode->first_free = cpu_to_le32(le32_to_cpu(dnode->first_free) + 4);
}
- *(dnode_secno *) ((void *) de_prev + le16_to_cpu(de_prev->length) - 4) = cpu_to_le32(ndown);
+ *(__le32 *) ((void *) de_prev + le16_to_cpu(de_prev->length) - 4) = cpu_to_le32(ndown);
hpfs_mark_4buffers_dirty(&qbh);
hpfs_brelse4(&qbh);
for_all_poss(i, hpfs_pos_subst, ((loff_t)up << 4) | (p - 1), 4);
kfree(name2);
return NULL;
}
- if (!upf->dirflag) {
+ if (!fnode_is_dir(upf)) {
brelse(bh);
hpfs_error(s, "fnode %08x has non-directory parent %08x", fno, le32_to_cpu(f->up));
kfree(name2);
return;
}
if (hpfs_ea_read(s, a, ano, pos, 4, ex)) return;
- if (ea->indirect) {
+ if (ea_indirect(ea)) {
if (ea_valuelen(ea) != 8) {
- hpfs_error(s, "ea->indirect set while ea->valuelen!=8, %s %08x, pos %08x",
+ hpfs_error(s, "ea_indirect(ea) set while ea->valuelen!=8, %s %08x, pos %08x",
ano ? "anode" : "sectors", a, pos);
return;
}
if (hpfs_ea_read(s, a, ano, pos + 4, ea->namelen + 9, ex+4))
return;
- hpfs_ea_remove(s, ea_sec(ea), ea->anode, ea_len(ea));
+ hpfs_ea_remove(s, ea_sec(ea), ea_in_anode(ea), ea_len(ea));
}
pos += ea->namelen + ea_valuelen(ea) + 5;
}
struct extended_attribute *ea_end = fnode_end_ea(fnode);
for (ea = fnode_ea(fnode); ea < ea_end; ea = next_ea(ea))
if (!strcmp(ea->name, key)) {
- if (ea->indirect)
+ if (ea_indirect(ea))
goto indirect;
if (ea_valuelen(ea) >= size)
return -EINVAL;
}
a = le32_to_cpu(fnode->ea_secno);
len = le32_to_cpu(fnode->ea_size_l);
- ano = fnode->ea_anode;
+ ano = fnode_in_anode(fnode);
pos = 0;
while (pos < len) {
ea = (struct extended_attribute *)ex;
return -EIO;
}
if (hpfs_ea_read(s, a, ano, pos, 4, ex)) return -EIO;
- if (hpfs_ea_read(s, a, ano, pos + 4, ea->namelen + 1 + (ea->indirect ? 8 : 0), ex + 4))
+ if (hpfs_ea_read(s, a, ano, pos + 4, ea->namelen + 1 + (ea_indirect(ea) ? 8 : 0), ex + 4))
return -EIO;
if (!strcmp(ea->name, key)) {
- if (ea->indirect)
+ if (ea_indirect(ea))
goto indirect;
if (ea_valuelen(ea) >= size)
return -EINVAL;
indirect:
if (ea_len(ea) >= size)
return -EINVAL;
- if (hpfs_ea_read(s, ea_sec(ea), ea->anode, 0, ea_len(ea), buf))
+ if (hpfs_ea_read(s, ea_sec(ea), ea_in_anode(ea), 0, ea_len(ea), buf))
return -EIO;
buf[ea_len(ea)] = 0;
return 0;
struct extended_attribute *ea_end = fnode_end_ea(fnode);
for (ea = fnode_ea(fnode); ea < ea_end; ea = next_ea(ea))
if (!strcmp(ea->name, key)) {
- if (ea->indirect)
- return get_indirect_ea(s, ea->anode, ea_sec(ea), *size = ea_len(ea));
+ if (ea_indirect(ea))
+ return get_indirect_ea(s, ea_in_anode(ea), ea_sec(ea), *size = ea_len(ea));
if (!(ret = kmalloc((*size = ea_valuelen(ea)) + 1, GFP_NOFS))) {
printk("HPFS: out of memory for EA\n");
return NULL;
}
a = le32_to_cpu(fnode->ea_secno);
len = le32_to_cpu(fnode->ea_size_l);
- ano = fnode->ea_anode;
+ ano = fnode_in_anode(fnode);
pos = 0;
while (pos < len) {
char ex[4 + 255 + 1 + 8];
return NULL;
}
if (hpfs_ea_read(s, a, ano, pos, 4, ex)) return NULL;
- if (hpfs_ea_read(s, a, ano, pos + 4, ea->namelen + 1 + (ea->indirect ? 8 : 0), ex + 4))
+ if (hpfs_ea_read(s, a, ano, pos + 4, ea->namelen + 1 + (ea_indirect(ea) ? 8 : 0), ex + 4))
return NULL;
if (!strcmp(ea->name, key)) {
- if (ea->indirect)
- return get_indirect_ea(s, ea->anode, ea_sec(ea), *size = ea_len(ea));
+ if (ea_indirect(ea))
+ return get_indirect_ea(s, ea_in_anode(ea), ea_sec(ea), *size = ea_len(ea));
if (!(ret = kmalloc((*size = ea_valuelen(ea)) + 1, GFP_NOFS))) {
printk("HPFS: out of memory for EA\n");
return NULL;
struct extended_attribute *ea_end = fnode_end_ea(fnode);
for (ea = fnode_ea(fnode); ea < ea_end; ea = next_ea(ea))
if (!strcmp(ea->name, key)) {
- if (ea->indirect) {
+ if (ea_indirect(ea)) {
if (ea_len(ea) == size)
- set_indirect_ea(s, ea->anode, ea_sec(ea), data, size);
+ set_indirect_ea(s, ea_in_anode(ea), ea_sec(ea), data, size);
} else if (ea_valuelen(ea) == size) {
memcpy(ea_data(ea), data, size);
}
}
a = le32_to_cpu(fnode->ea_secno);
len = le32_to_cpu(fnode->ea_size_l);
- ano = fnode->ea_anode;
+ ano = fnode_in_anode(fnode);
pos = 0;
while (pos < len) {
char ex[4 + 255 + 1 + 8];
return;
}
if (hpfs_ea_read(s, a, ano, pos, 4, ex)) return;
- if (hpfs_ea_read(s, a, ano, pos + 4, ea->namelen + 1 + (ea->indirect ? 8 : 0), ex + 4))
+ if (hpfs_ea_read(s, a, ano, pos + 4, ea->namelen + 1 + (ea_indirect(ea) ? 8 : 0), ex + 4))
return;
if (!strcmp(ea->name, key)) {
- if (ea->indirect) {
+ if (ea_indirect(ea)) {
if (ea_len(ea) == size)
- set_indirect_ea(s, ea->anode, ea_sec(ea), data, size);
+ set_indirect_ea(s, ea_in_anode(ea), ea_sec(ea), data, size);
}
else {
if (ea_valuelen(ea) == size)
if (le16_to_cpu(fnode->ea_offs) < 0xc4 || le16_to_cpu(fnode->ea_offs) + le16_to_cpu(fnode->acl_size_s) + le16_to_cpu(fnode->ea_size_s) > 0x200) {
hpfs_error(s, "fnode %08lx: ea_offs == %03x, ea_size_s == %03x",
(unsigned long)inode->i_ino,
- le32_to_cpu(fnode->ea_offs), le16_to_cpu(fnode->ea_size_s));
+ le16_to_cpu(fnode->ea_offs), le16_to_cpu(fnode->ea_size_s));
return;
}
if ((le16_to_cpu(fnode->ea_size_s) || !le32_to_cpu(fnode->ea_size_l)) &&
fnode->ea_size_l = cpu_to_le32(le16_to_cpu(fnode->ea_size_s));
fnode->ea_size_s = cpu_to_le16(0);
fnode->ea_secno = cpu_to_le32(n);
- fnode->ea_anode = cpu_to_le32(0);
+ fnode->flags &= ~FNODE_anode;
mark_buffer_dirty(bh);
brelse(bh);
}
secno q = hpfs_alloc_sector(s, fno, 1, 0);
if (!q) goto bail;
fnode->ea_secno = cpu_to_le32(q);
- fnode->ea_anode = 0;
+ fnode->flags &= ~FNODE_anode;
len++;
- } else if (!fnode->ea_anode) {
+ } else if (!fnode_in_anode(fnode)) {
if (hpfs_alloc_if_possible(s, le32_to_cpu(fnode->ea_secno) + len)) {
len++;
} else {
anode->u.external[0].length = cpu_to_le32(len);
mark_buffer_dirty(bh);
brelse(bh);
- fnode->ea_anode = 1;
+ fnode->flags |= FNODE_anode;
fnode->ea_secno = cpu_to_le32(a_s);*/
secno new_sec;
int i;
len = (pos + 511) >> 9;
}
}
- if (fnode->ea_anode) {
+ if (fnode_in_anode(fnode)) {
if (hpfs_add_sector_to_btree(s, le32_to_cpu(fnode->ea_secno),
0, len) != -1) {
len++;
h[1] = strlen(key);
h[2] = size & 0xff;
h[3] = size >> 8;
- if (hpfs_ea_write(s, le32_to_cpu(fnode->ea_secno), fnode->ea_anode, le32_to_cpu(fnode->ea_size_l), 4, h)) goto bail;
- if (hpfs_ea_write(s, le32_to_cpu(fnode->ea_secno), fnode->ea_anode, le32_to_cpu(fnode->ea_size_l) + 4, h[1] + 1, key)) goto bail;
- if (hpfs_ea_write(s, le32_to_cpu(fnode->ea_secno), fnode->ea_anode, le32_to_cpu(fnode->ea_size_l) + 5 + h[1], size, data)) goto bail;
+ if (hpfs_ea_write(s, le32_to_cpu(fnode->ea_secno), fnode_in_anode(fnode), le32_to_cpu(fnode->ea_size_l), 4, h)) goto bail;
+ if (hpfs_ea_write(s, le32_to_cpu(fnode->ea_secno), fnode_in_anode(fnode), le32_to_cpu(fnode->ea_size_l) + 4, h[1] + 1, key)) goto bail;
+ if (hpfs_ea_write(s, le32_to_cpu(fnode->ea_secno), fnode_in_anode(fnode), le32_to_cpu(fnode->ea_size_l) + 5 + h[1], size, data)) goto bail;
fnode->ea_size_l = cpu_to_le32(pos);
ret:
hpfs_i(inode)->i_ea_size += 5 + strlen(key) + size;
return;
bail:
if (le32_to_cpu(fnode->ea_secno))
- if (fnode->ea_anode) hpfs_truncate_btree(s, le32_to_cpu(fnode->ea_secno), 1, (le32_to_cpu(fnode->ea_size_l) + 511) >> 9);
+ if (fnode_in_anode(fnode)) hpfs_truncate_btree(s, le32_to_cpu(fnode->ea_secno), 1, (le32_to_cpu(fnode->ea_size_l) + 511) >> 9);
else hpfs_free_sectors(s, le32_to_cpu(fnode->ea_secno) + ((le32_to_cpu(fnode->ea_size_l) + 511) >> 9), len - ((le32_to_cpu(fnode->ea_size_l) + 511) >> 9));
else fnode->ea_secno = fnode->ea_size_l = cpu_to_le32(0);
}
u8 n_rootdir_entries[2];
u8 n_sectors_s[2];
u8 media_byte;
- u16 sectors_per_fat;
- u16 sectors_per_track;
- u16 heads_per_cyl;
- u32 n_hidden_sectors;
- u32 n_sectors_l; /* size of partition */
+ __le16 sectors_per_fat;
+ __le16 sectors_per_track;
+ __le16 heads_per_cyl;
+ __le32 n_hidden_sectors;
+ __le32 n_sectors_l; /* size of partition */
u8 drive_number;
u8 mbz;
u8 sig_28h; /* 28h */
u8 vol_label[11];
u8 sig_hpfs[8]; /* "HPFS " */
u8 pad[448];
- u16 magic; /* aa55 */
+ __le16 magic; /* aa55 */
};
struct hpfs_super_block
{
- u32 magic; /* f995 e849 */
- u32 magic1; /* fa53 e9c5, more magic? */
+ __le32 magic; /* f995 e849 */
+ __le32 magic1; /* fa53 e9c5, more magic? */
u8 version; /* version of a filesystem usually 2 */
u8 funcversion; /* functional version - oldest version
of filesystem that can understand
this disk */
- u16 zero; /* 0 */
- fnode_secno root; /* fnode of root directory */
- secno n_sectors; /* size of filesystem */
- u32 n_badblocks; /* number of bad blocks */
- secno bitmaps; /* pointers to free space bit maps */
- u32 zero1; /* 0 */
- secno badblocks; /* bad block list */
- u32 zero3; /* 0 */
- time32_t last_chkdsk; /* date last checked, 0 if never */
- time32_t last_optimize; /* date last optimized, 0 if never */
- secno n_dir_band; /* number of sectors in dir band */
- secno dir_band_start; /* first sector in dir band */
- secno dir_band_end; /* last sector in dir band */
- secno dir_band_bitmap; /* free space map, 1 dnode per bit */
+ __le16 zero; /* 0 */
+ __le32 root; /* fnode of root directory */
+ __le32 n_sectors; /* size of filesystem */
+ __le32 n_badblocks; /* number of bad blocks */
+ __le32 bitmaps; /* pointers to free space bit maps */
+ __le32 zero1; /* 0 */
+ __le32 badblocks; /* bad block list */
+ __le32 zero3; /* 0 */
+ __le32 last_chkdsk; /* date last checked, 0 if never */
+ __le32 last_optimize; /* date last optimized, 0 if never */
+ __le32 n_dir_band; /* number of sectors in dir band */
+ __le32 dir_band_start; /* first sector in dir band */
+ __le32 dir_band_end; /* last sector in dir band */
+ __le32 dir_band_bitmap; /* free space map, 1 dnode per bit */
u8 volume_name[32]; /* not used */
- secno user_id_table; /* 8 preallocated sectors - user id */
+ __le32 user_id_table; /* 8 preallocated sectors - user id */
u32 zero6[103]; /* 0 */
};
struct hpfs_spare_block
{
- u32 magic; /* f991 1849 */
- u32 magic1; /* fa52 29c5, more magic? */
+ __le32 magic; /* f991 1849 */
+ __le32 magic1; /* fa52 29c5, more magic? */
#ifdef __LITTLE_ENDIAN
u8 dirty: 1; /* 0 clean, 1 "improperly stopped" */
u8 mm_contlgulty;
u8 unused;
- secno hotfix_map; /* info about remapped bad sectors */
- u32 n_spares_used; /* number of hotfixes */
- u32 n_spares; /* number of spares in hotfix map */
- u32 n_dnode_spares_free; /* spare dnodes unused */
- u32 n_dnode_spares; /* length of spare_dnodes[] list,
+ __le32 hotfix_map; /* info about remapped bad sectors */
+ __le32 n_spares_used; /* number of hotfixes */
+ __le32 n_spares; /* number of spares in hotfix map */
+ __le32 n_dnode_spares_free; /* spare dnodes unused */
+ __le32 n_dnode_spares; /* length of spare_dnodes[] list,
follows in this block*/
- secno code_page_dir; /* code page directory block */
- u32 n_code_pages; /* number of code pages */
- u32 super_crc; /* on HPFS386 and LAN Server this is
+ __le32 code_page_dir; /* code page directory block */
+ __le32 n_code_pages; /* number of code pages */
+ __le32 super_crc; /* on HPFS386 and LAN Server this is
checksum of superblock, on normal
OS/2 unused */
- u32 spare_crc; /* on HPFS386 checksum of spareblock */
- u32 zero1[15]; /* unused */
- dnode_secno spare_dnodes[100]; /* emergency free dnode list */
- u32 zero2[1]; /* room for more? */
+ __le32 spare_crc; /* on HPFS386 checksum of spareblock */
+ __le32 zero1[15]; /* unused */
+ __le32 spare_dnodes[100]; /* emergency free dnode list */
+ __le32 zero2[1]; /* room for more? */
};
/* The bad block list is 4 sectors long. The first word must be zero,
struct code_page_directory
{
- u32 magic; /* 4945 21f7 */
- u32 n_code_pages; /* number of pointers following */
- u32 zero1[2];
+ __le32 magic; /* 4945 21f7 */
+ __le32 n_code_pages; /* number of pointers following */
+ __le32 zero1[2];
struct {
- u16 ix; /* index */
- u16 code_page_number; /* code page number */
- u32 bounds; /* matches corresponding word
+ __le16 ix; /* index */
+ __le16 code_page_number; /* code page number */
+ __le32 bounds; /* matches corresponding word
in data block */
- secno code_page_data; /* sector number of a code_page_data
+ __le32 code_page_data; /* sector number of a code_page_data
containing c.p. array */
- u16 index; /* index in c.p. array in that sector*/
- u16 unknown; /* some unknown value; usually 0;
+ __le16 index; /* index in c.p. array in that sector*/
+ __le16 unknown; /* some unknown value; usually 0;
2 in Japanese version */
} array[31]; /* unknown length */
};
struct code_page_data
{
- u32 magic; /* 8945 21f7 */
- u32 n_used; /* # elements used in c_p_data[] */
- u32 bounds[3]; /* looks a bit like
+ __le32 magic; /* 8945 21f7 */
+ __le32 n_used; /* # elements used in c_p_data[] */
+ __le32 bounds[3]; /* looks a bit like
(beg1,end1), (beg2,end2)
one byte each */
- u16 offs[3]; /* offsets from start of sector
+ __le16 offs[3]; /* offsets from start of sector
to start of c_p_data[ix] */
struct {
- u16 ix; /* index */
- u16 code_page_number; /* code page number */
- u16 unknown; /* the same as in cp directory */
+ __le16 ix; /* index */
+ __le16 code_page_number; /* code page number */
+ __le16 unknown; /* the same as in cp directory */
u8 map[128]; /* upcase table for chars 80..ff */
- u16 zero2;
+ __le16 zero2;
} code_page[3];
u8 incognita[78];
};
#define DNODE_MAGIC 0x77e40aae
struct dnode {
- u32 magic; /* 77e4 0aae */
- u32 first_free; /* offset from start of dnode to
+ __le32 magic; /* 77e4 0aae */
+ __le32 first_free; /* offset from start of dnode to
first free dir entry */
#ifdef __LITTLE_ENDIAN
u8 root_dnode: 1; /* Is it root dnode? */
u8 root_dnode: 1; /* Is it root dnode? */
#endif
u8 increment_me2[3];
- secno up; /* (root dnode) directory's fnode
+ __le32 up; /* (root dnode) directory's fnode
(nonroot) parent dnode */
- dnode_secno self; /* pointer to this dnode */
+ __le32 self; /* pointer to this dnode */
u8 dirent[2028]; /* one or more dirents */
};
struct hpfs_dirent {
- u16 length; /* offset to next dirent */
+ __le16 length; /* offset to next dirent */
#ifdef __LITTLE_ENDIAN
u8 first: 1; /* set on phony ^A^A (".") entry */
u8 read_only: 1; /* dos attrib */
#endif
- fnode_secno fnode; /* fnode giving allocation info */
- time32_t write_date; /* mtime */
- u32 file_size; /* file length, bytes */
- time32_t read_date; /* atime */
- time32_t creation_date; /* ctime */
- u32 ea_size; /* total EA length, bytes */
+ __le32 fnode; /* fnode giving allocation info */
+ __le32 write_date; /* mtime */
+ __le32 file_size; /* file length, bytes */
+ __le32 read_date; /* atime */
+ __le32 creation_date; /* ctime */
+ __le32 ea_size; /* total EA length, bytes */
u8 no_of_acls; /* number of ACL's (low 3 bits) */
u8 ix; /* code page index (of filename), see
struct code_page_data */
struct bplus_leaf_node
{
- u32 file_secno; /* first file sector in extent */
- u32 length; /* length, sectors */
- secno disk_secno; /* first corresponding disk sector */
+ __le32 file_secno; /* first file sector in extent */
+ __le32 length; /* length, sectors */
+ __le32 disk_secno; /* first corresponding disk sector */
};
struct bplus_internal_node
{
- u32 file_secno; /* subtree maps sectors < this */
- anode_secno down; /* pointer to subtree */
+ __le32 file_secno; /* subtree maps sectors < this */
+ __le32 down; /* pointer to subtree */
};
+enum {
+ BP_hbff = 1,
+ BP_fnode_parent = 0x20,
+ BP_binary_search = 0x40,
+ BP_internal = 0x80
+};
struct bplus_header
{
-#ifdef __LITTLE_ENDIAN
- u8 hbff: 1; /* high bit of first free entry offset */
- u8 flag1234: 4;
- u8 fnode_parent: 1; /* ? we're pointed to by an fnode,
- the data btree or some ea or the
- main ea bootage pointer ea_secno */
- /* also can get set in fnodes, which
- may be a chkdsk glitch or may mean
- this bit is irrelevant in fnodes,
- or this interpretation is all wet */
- u8 binary_search: 1; /* suggest binary search (unused) */
- u8 internal: 1; /* 1 -> (internal) tree of anodes
- 0 -> (leaf) list of extents */
-#else
- u8 internal: 1; /* 1 -> (internal) tree of anodes
- 0 -> (leaf) list of extents */
- u8 binary_search: 1; /* suggest binary search (unused) */
- u8 fnode_parent: 1; /* ? we're pointed to by an fnode,
+ u8 flags; /* bit 0 - high bit of first free entry offset
+ bit 5 - we're pointed to by an fnode,
the data btree or some ea or the
- main ea bootage pointer ea_secno */
- /* also can get set in fnodes, which
- may be a chkdsk glitch or may mean
- this bit is irrelevant in fnodes,
- or this interpretation is all wet */
- u8 flag1234: 4;
- u8 hbff: 1; /* high bit of first free entry offset */
-#endif
+ main ea bootage pointer ea_secno
+ bit 6 - suggest binary search (unused)
+ bit 7 - 1 -> (internal) tree of anodes
+ 0 -> (leaf) list of extents */
u8 fill[3];
u8 n_free_nodes; /* free nodes in following array */
u8 n_used_nodes; /* used nodes in following array */
- u16 first_free; /* offset from start of header to
+ __le16 first_free; /* offset from start of header to
first free node in array */
union {
struct bplus_internal_node internal[0]; /* (internal) 2-word entries giving
} u;
};
+static inline bool bp_internal(struct bplus_header *bp)
+{
+ return bp->flags & BP_internal;
+}
+
+static inline bool bp_fnode_parent(struct bplus_header *bp)
+{
+ return bp->flags & BP_fnode_parent;
+}
+
/* fnode: root of allocation b+ tree, and EA's */
/* Every file and every directory has one fnode, pointed to by the directory
#define FNODE_MAGIC 0xf7e40aae
+enum {FNODE_anode = cpu_to_le16(2), FNODE_dir = cpu_to_le16(256)};
struct fnode
{
- u32 magic; /* f7e4 0aae */
- u32 zero1[2]; /* read history */
+ __le32 magic; /* f7e4 0aae */
+ __le32 zero1[2]; /* read history */
u8 len, name[15]; /* true length, truncated name */
- fnode_secno up; /* pointer to file's directory fnode */
- secno acl_size_l;
- secno acl_secno;
- u16 acl_size_s;
+ __le32 up; /* pointer to file's directory fnode */
+ __le32 acl_size_l;
+ __le32 acl_secno;
+ __le16 acl_size_s;
u8 acl_anode;
u8 zero2; /* history bit count */
- u32 ea_size_l; /* length of disk-resident ea's */
- secno ea_secno; /* first sector of disk-resident ea's*/
- u16 ea_size_s; /* length of fnode-resident ea's */
-
-#ifdef __LITTLE_ENDIAN
- u8 flag0: 1;
- u8 ea_anode: 1; /* 1 -> ea_secno is an anode */
- u8 flag234567: 6;
-#else
- u8 flag234567: 6;
- u8 ea_anode: 1; /* 1 -> ea_secno is an anode */
- u8 flag0: 1;
-#endif
+ __le32 ea_size_l; /* length of disk-resident ea's */
+ __le32 ea_secno; /* first sector of disk-resident ea's*/
+ __le16 ea_size_s; /* length of fnode-resident ea's */
-#ifdef __LITTLE_ENDIAN
- u8 dirflag: 1; /* 1 -> directory. first & only extent
- points to dnode. */
- u8 flag9012345: 7;
-#else
- u8 flag9012345: 7;
- u8 dirflag: 1; /* 1 -> directory. first & only extent
+ __le16 flags; /* bit 1 set -> ea_secno is an anode */
+ /* bit 8 set -> directory. first & only extent
points to dnode. */
-#endif
-
struct bplus_header btree; /* b+ tree, 8 extents or 12 subtrees */
union {
struct bplus_leaf_node external[8];
struct bplus_internal_node internal[12];
} u;
- u32 file_size; /* file length, bytes */
- u32 n_needea; /* number of EA's with NEEDEA set */
+ __le32 file_size; /* file length, bytes */
+ __le32 n_needea; /* number of EA's with NEEDEA set */
u8 user_id[16]; /* unused */
- u16 ea_offs; /* offset from start of fnode
+ __le16 ea_offs; /* offset from start of fnode
to first fnode-resident ea */
u8 dasd_limit_treshhold;
u8 dasd_limit_delta;
- u32 dasd_limit;
- u32 dasd_usage;
+ __le32 dasd_limit;
+ __le32 dasd_usage;
u8 ea[316]; /* zero or more EA's, packed together
with no alignment padding.
(Do not use this name, get here
via fnode + ea_offs. I think.) */
};
+static inline bool fnode_in_anode(struct fnode *p)
+{
+ return (p->flags & FNODE_anode) != 0;
+}
+
+static inline bool fnode_is_dir(struct fnode *p)
+{
+ return (p->flags & FNODE_dir) != 0;
+}
+
/* anode: 99.44% pure allocation tree */
struct anode
{
- u32 magic; /* 37e4 0aae */
- anode_secno self; /* pointer to this anode */
- secno up; /* parent anode or fnode */
+ __le32 magic; /* 37e4 0aae */
+ __le32 self; /* pointer to this anode */
+ __le32 up; /* parent anode or fnode */
struct bplus_header btree; /* b+tree, 40 extents or 60 subtrees */
union {
struct bplus_internal_node internal[60];
} u;
- u32 fill[3]; /* unused */
+ __le32 fill[3]; /* unused */
};
run, or in multiple runs. Flags in the fnode tell whether the EA list
is immediate, in a single run, or in multiple runs. */
+enum {EA_indirect = 1, EA_anode = 2, EA_needea = 128 };
struct extended_attribute
{
-#ifdef __LITTLE_ENDIAN
- u8 indirect: 1; /* 1 -> value gives sector number
+ u8 flags; /* bit 0 set -> value gives sector number
where real value starts */
- u8 anode: 1; /* 1 -> sector is an anode
+ /* bit 1 set -> sector is an anode
that points to fragmented value */
- u8 flag23456: 5;
- u8 needea: 1; /* required ea */
-#else
- u8 needea: 1; /* required ea */
- u8 flag23456: 5;
- u8 anode: 1; /* 1 -> sector is an anode
- that points to fragmented value */
- u8 indirect: 1; /* 1 -> value gives sector number
- where real value starts */
-#endif
+ /* bit 7 set -> required ea */
u8 namelen; /* length of name, bytes */
u8 valuelen_lo; /* length of value, bytes */
u8 valuelen_hi; /* length of value, bytes */
- u8 name[0];
+ u8 name[];
/*
u8 name[namelen]; ascii attrib name
u8 nul; terminating '\0', not counted
u8 value[valuelen]; value, arbitrary
- if this.indirect, valuelen is 8 and the value is
+ if this.flags & 1, valuelen is 8 and the value is
u32 length; real length of value, bytes
secno secno; sector address where it starts
if this.anode, the above sector number is the root of an anode tree
*/
};
+static inline bool ea_indirect(struct extended_attribute *ea)
+{
+ return ea->flags & EA_indirect;
+}
+
+static inline bool ea_in_anode(struct extended_attribute *ea)
+{
+ return ea->flags & EA_anode;
+}
+
/*
Local Variables:
comment-column: 40
#define CHKCOND(x,y) if (!(x)) printk y
-#ifdef DBG
-#define PRINTK(x) printk x
-#else
-#undef PRINTK
-#define PRINTK(x)
-#endif
-
struct hpfs_inode_info {
loff_t mmu_private;
ino_t i_parent_dir; /* (directories) gives fnode of parent dir */
unsigned char *sb_cp_table; /* code page tables: */
/* 128 bytes uppercasing table & */
/* 128 bytes lowercasing table */
- unsigned *sb_bmp_dir; /* main bitmap directory */
+ __le32 *sb_bmp_dir; /* main bitmap directory */
unsigned sb_c_bitmap; /* current bitmap */
unsigned sb_max_fwd_alloc; /* max forwad allocation */
int sb_timeshift;
static inline dnode_secno de_down_pointer (struct hpfs_dirent *de)
{
CHKCOND(de->down,("HPFS: de_down_pointer: !de->down\n"));
- return le32_to_cpu(*(dnode_secno *) ((void *) de + le16_to_cpu(de->length) - 4));
+ return le32_to_cpu(*(__le32 *) ((void *) de + le16_to_cpu(de->length) - 4));
}
/* The first dir entry in a dnode */
static inline secno ea_sec(struct extended_attribute *ea)
{
- return le32_to_cpu(get_unaligned((secno *)((char *)ea + 9 + ea->namelen)));
+ return le32_to_cpu(get_unaligned((__le32 *)((char *)ea + 9 + ea->namelen)));
}
static inline secno ea_len(struct extended_attribute *ea)
{
- return le32_to_cpu(get_unaligned((secno *)((char *)ea + 5 + ea->namelen)));
+ return le32_to_cpu(get_unaligned((__le32 *)((char *)ea + 5 + ea->namelen)));
}
static inline char *ea_data(struct extended_attribute *ea)
dst->not_8x3 = n;
}
-static inline unsigned tstbits(u32 *bmp, unsigned b, unsigned n)
+static inline unsigned tstbits(__le32 *bmp, unsigned b, unsigned n)
{
int i;
if ((b >= 0x4000) || (b + n - 1 >= 0x4000)) return n;
/* map.c */
-unsigned *hpfs_map_dnode_bitmap(struct super_block *, struct quad_buffer_head *);
-unsigned *hpfs_map_bitmap(struct super_block *, unsigned, struct quad_buffer_head *, char *);
+__le32 *hpfs_map_dnode_bitmap(struct super_block *, struct quad_buffer_head *);
+__le32 *hpfs_map_bitmap(struct super_block *, unsigned, struct quad_buffer_head *, char *);
unsigned char *hpfs_load_code_page(struct super_block *, secno);
-secno *hpfs_load_bitmap_directory(struct super_block *, secno bmp);
+__le32 *hpfs_load_bitmap_directory(struct super_block *, secno bmp);
struct fnode *hpfs_map_fnode(struct super_block *s, ino_t, struct buffer_head **);
struct anode *hpfs_map_anode(struct super_block *s, anode_secno, struct buffer_head **);
struct dnode *hpfs_map_dnode(struct super_block *s, dnode_secno, struct quad_buffer_head *);
}
}
}
- if (fnode->dirflag) {
+ if (fnode_is_dir(fnode)) {
int n_dnodes, n_subdirs;
i->i_mode |= S_IFDIR;
i->i_op = &hpfs_dir_iops;
#include "hpfs_fn.h"
-unsigned *hpfs_map_dnode_bitmap(struct super_block *s, struct quad_buffer_head *qbh)
+__le32 *hpfs_map_dnode_bitmap(struct super_block *s, struct quad_buffer_head *qbh)
{
return hpfs_map_4sectors(s, hpfs_sb(s)->sb_dmap, qbh, 0);
}
-unsigned int *hpfs_map_bitmap(struct super_block *s, unsigned bmp_block,
+__le32 *hpfs_map_bitmap(struct super_block *s, unsigned bmp_block,
struct quad_buffer_head *qbh, char *id)
{
secno sec;
return cp_table;
}
-secno *hpfs_load_bitmap_directory(struct super_block *s, secno bmp)
+__le32 *hpfs_load_bitmap_directory(struct super_block *s, secno bmp)
{
struct buffer_head *bh;
int n = (hpfs_sb(s)->sb_fs_size + 0x200000 - 1) >> 21;
int i;
- secno *b;
+ __le32 *b;
if (!(b = kmalloc(n * 512, GFP_KERNEL))) {
printk("HPFS: can't allocate memory for bitmap directory\n");
return NULL;
}
for (i=0;i<n;i++) {
- secno *d = hpfs_map_sector(s, bmp+i, &bh, n - i - 1);
+ __le32 *d = hpfs_map_sector(s, bmp+i, &bh, n - i - 1);
if (!d) {
kfree(b);
return NULL;
(unsigned long)ino);
goto bail;
}
- if (!fnode->dirflag) {
+ if (!fnode_is_dir(fnode)) {
if ((unsigned)fnode->btree.n_used_nodes + (unsigned)fnode->btree.n_free_nodes !=
- (fnode->btree.internal ? 12 : 8)) {
+ (bp_internal(&fnode->btree) ? 12 : 8)) {
hpfs_error(s,
"bad number of nodes in fnode %08lx",
(unsigned long)ino);
goto bail;
}
if (le16_to_cpu(fnode->btree.first_free) !=
- 8 + fnode->btree.n_used_nodes * (fnode->btree.internal ? 8 : 12)) {
+ 8 + fnode->btree.n_used_nodes * (bp_internal(&fnode->btree) ? 8 : 12)) {
hpfs_error(s,
"bad first_free pointer in fnode %08lx",
(unsigned long)ino);
goto bail;
}
if ((unsigned)anode->btree.n_used_nodes + (unsigned)anode->btree.n_free_nodes !=
- (anode->btree.internal ? 60 : 40)) {
+ (bp_internal(&anode->btree) ? 60 : 40)) {
hpfs_error(s, "bad number of nodes in anode %08x", ano);
goto bail;
}
if (le16_to_cpu(anode->btree.first_free) !=
- 8 + anode->btree.n_used_nodes * (anode->btree.internal ? 8 : 12)) {
+ 8 + anode->btree.n_used_nodes * (bp_internal(&anode->btree) ? 8 : 12)) {
hpfs_error(s, "bad first_free pointer in anode %08x", ano);
goto bail;
}
fnode->len = len;
memcpy(fnode->name, name, len > 15 ? 15 : len);
fnode->up = cpu_to_le32(dir->i_ino);
- fnode->dirflag = 1;
+ fnode->flags |= FNODE_dir;
fnode->btree.n_free_nodes = 7;
fnode->btree.n_used_nodes = 1;
fnode->btree.first_free = cpu_to_le16(0x14);
mark_buffer_dirty(bh2);
}
- if (le32_to_cpu(spareblock->hotfixes_used) || le32_to_cpu(spareblock->n_spares_used)) {
+ if (spareblock->hotfixes_used || spareblock->n_spares_used) {
if (errs >= 2) {
printk("HPFS: Hotfixes not supported here, try chkdsk\n");
mark_dirty(s, 0);
root->i_mtime.tv_nsec = 0;
root->i_ctime.tv_sec = local_to_gmt(s, le32_to_cpu(de->creation_date));
root->i_ctime.tv_nsec = 0;
- hpfs_i(root)->i_ea_size = le16_to_cpu(de->ea_size);
+ hpfs_i(root)->i_ea_size = le32_to_cpu(de->ea_size);
hpfs_i(root)->i_parent_dir = root->i_ino;
if (root->i_size == -1)
root->i_size = 2048;
return 0;
}
+/*
+ * This does the actual work of updating an inodes time or version. Must have
+ * had called mnt_want_write() before calling this.
+ */
+static int update_time(struct inode *inode, struct timespec *time, int flags)
+{
+ if (inode->i_op->update_time)
+ return inode->i_op->update_time(inode, time, flags);
+
+ if (flags & S_ATIME)
+ inode->i_atime = *time;
+ if (flags & S_VERSION)
+ inode_inc_iversion(inode);
+ if (flags & S_CTIME)
+ inode->i_ctime = *time;
+ if (flags & S_MTIME)
+ inode->i_mtime = *time;
+ mark_inode_dirty_sync(inode);
+ return 0;
+}
+
/**
* touch_atime - update the access time
- * @mnt: mount the inode is accessed on
- * @dentry: dentry accessed
+ * @path: the &struct path to update
*
* Update the accessed time on an inode and mark it for writeback.
* This function automatically handles read only file systems and media,
if (mnt_want_write(mnt))
return;
- inode->i_atime = now;
- mark_inode_dirty_sync(inode);
+ /*
+ * File systems can error out when updating inodes if they need to
+ * allocate new space to modify an inode (such is the case for
+ * Btrfs), but since we touch atime while walking down the path we
+ * really don't care if we failed to update the atime of the file,
+ * so just ignore the return value.
+ */
+ update_time(inode, &now, S_ATIME);
mnt_drop_write(mnt);
}
EXPORT_SYMBOL(touch_atime);
+/*
+ * The logic we want is
+ *
+ * if suid or (sgid and xgrp)
+ * remove privs
+ */
+int should_remove_suid(struct dentry *dentry)
+{
+ umode_t mode = dentry->d_inode->i_mode;
+ int kill = 0;
+
+ /* suid always must be killed */
+ if (unlikely(mode & S_ISUID))
+ kill = ATTR_KILL_SUID;
+
+ /*
+ * sgid without any exec bits is just a mandatory locking mark; leave
+ * it alone. If some exec bits are set, it's a real sgid; kill it.
+ */
+ if (unlikely((mode & S_ISGID) && (mode & S_IXGRP)))
+ kill |= ATTR_KILL_SGID;
+
+ if (unlikely(kill && !capable(CAP_FSETID) && S_ISREG(mode)))
+ return kill;
+
+ return 0;
+}
+EXPORT_SYMBOL(should_remove_suid);
+
+static int __remove_suid(struct dentry *dentry, int kill)
+{
+ struct iattr newattrs;
+
+ newattrs.ia_valid = ATTR_FORCE | kill;
+ return notify_change(dentry, &newattrs);
+}
+
+int file_remove_suid(struct file *file)
+{
+ struct dentry *dentry = file->f_path.dentry;
+ struct inode *inode = dentry->d_inode;
+ int killsuid;
+ int killpriv;
+ int error = 0;
+
+ /* Fast path for nothing security related */
+ if (IS_NOSEC(inode))
+ return 0;
+
+ killsuid = should_remove_suid(dentry);
+ killpriv = security_inode_need_killpriv(dentry);
+
+ if (killpriv < 0)
+ return killpriv;
+ if (killpriv)
+ error = security_inode_killpriv(dentry);
+ if (!error && killsuid)
+ error = __remove_suid(dentry, killsuid);
+ if (!error && (inode->i_sb->s_flags & MS_NOSEC))
+ inode->i_flags |= S_NOSEC;
+
+ return error;
+}
+EXPORT_SYMBOL(file_remove_suid);
+
/**
* file_update_time - update mtime and ctime time
* @file: file accessed
* usage in the file write path of filesystems, and filesystems may
* choose to explicitly ignore update via this function with the
* S_NOCMTIME inode flag, e.g. for network filesystem where these
- * timestamps are handled by the server.
+ * timestamps are handled by the server. This can return an error for
+ * file systems who need to allocate space in order to update an inode.
*/
-void file_update_time(struct file *file)
+int file_update_time(struct file *file)
{
struct inode *inode = file->f_path.dentry->d_inode;
struct timespec now;
- enum { S_MTIME = 1, S_CTIME = 2, S_VERSION = 4 } sync_it = 0;
+ int sync_it = 0;
+ int ret;
/* First try to exhaust all avenues to not sync */
if (IS_NOCMTIME(inode))
- return;
+ return 0;
now = current_fs_time(inode->i_sb);
if (!timespec_equal(&inode->i_mtime, &now))
sync_it |= S_VERSION;
if (!sync_it)
- return;
+ return 0;
/* Finally allowed to write? Takes lock. */
if (mnt_want_write_file(file))
- return;
+ return 0;
- /* Only change inode inside the lock region */
- if (sync_it & S_VERSION)
- inode_inc_iversion(inode);
- if (sync_it & S_CTIME)
- inode->i_ctime = now;
- if (sync_it & S_MTIME)
- inode->i_mtime = now;
- mark_inode_dirty_sync(inode);
+ ret = update_time(inode, &now, sync_it);
mnt_drop_write_file(file);
+
+ return ret;
}
EXPORT_SYMBOL(file_update_time);
return false;
}
EXPORT_SYMBOL(inode_owner_or_capable);
+
+/*
+ * Direct i/o helper functions
+ */
+static void __inode_dio_wait(struct inode *inode)
+{
+ wait_queue_head_t *wq = bit_waitqueue(&inode->i_state, __I_DIO_WAKEUP);
+ DEFINE_WAIT_BIT(q, &inode->i_state, __I_DIO_WAKEUP);
+
+ do {
+ prepare_to_wait(wq, &q.wait, TASK_UNINTERRUPTIBLE);
+ if (atomic_read(&inode->i_dio_count))
+ schedule();
+ } while (atomic_read(&inode->i_dio_count));
+ finish_wait(wq, &q.wait);
+}
+
+/**
+ * inode_dio_wait - wait for outstanding DIO requests to finish
+ * @inode: inode to wait for
+ *
+ * Waits for all pending direct I/O requests to finish so that we can
+ * proceed with a truncate or equivalent operation.
+ *
+ * Must be called under a lock that serializes taking new references
+ * to i_dio_count, usually by inode->i_mutex.
+ */
+void inode_dio_wait(struct inode *inode)
+{
+ if (atomic_read(&inode->i_dio_count))
+ __inode_dio_wait(inode);
+}
+EXPORT_SYMBOL(inode_dio_wait);
+
+/*
+ * inode_dio_done - signal finish of a direct I/O requests
+ * @inode: inode the direct I/O happens on
+ *
+ * This is called once we've finished processing a direct I/O request,
+ * and is used to wake up callers waiting for direct I/O to be quiesced.
+ */
+void inode_dio_done(struct inode *inode)
+{
+ if (atomic_dec_and_test(&inode->i_dio_count))
+ wake_up_bit(&inode->i_state, __I_DIO_WAKEUP);
+}
+EXPORT_SYMBOL(inode_dio_done);
extern void __init mnt_init(void);
-DECLARE_BRLOCK(vfsmount_lock);
+extern struct lglock vfsmount_lock;
/*
extern long do_handle_open(int mountdirfd,
struct file_handle __user *ufh, int open_flag);
+extern int open_check_o_direct(struct file *f);
/*
* inode.c
ioc = get_task_io_context(task, GFP_ATOMIC, NUMA_NO_NODE);
if (ioc) {
- ioc_ioprio_changed(ioc, ioprio);
+ ioc->ioprio = ioprio;
put_io_context(ioc);
}
}
static int
-isofs_export_encode_fh(struct dentry *dentry,
+isofs_export_encode_fh(struct inode *inode,
__u32 *fh32,
int *max_len,
- int connectable)
+ struct inode *parent)
{
- struct inode * inode = dentry->d_inode;
struct iso_inode_info * ei = ISOFS_I(inode);
int len = *max_len;
int type = 1;
* offset of the inode and the upper 16 bits of fh32[1] to
* hold the offset of the parent.
*/
- if (connectable && (len < 5)) {
+ if (parent && (len < 5)) {
*max_len = 5;
return 255;
} else if (len < 3) {
fh32[0] = ei->i_iget5_block;
fh16[2] = (__u16)ei->i_iget5_offset; /* fh16 [sic] */
fh32[2] = inode->i_generation;
- if (connectable && !S_ISDIR(inode->i_mode)) {
- struct inode *parent;
+ if (parent) {
struct iso_inode_info *eparent;
- spin_lock(&dentry->d_lock);
- parent = dentry->d_parent->d_inode;
eparent = ISOFS_I(parent);
fh32[3] = eparent->i_iget5_block;
fh16[3] = (__u16)eparent->i_iget5_offset; /* fh16 [sic] */
fh32[4] = parent->i_generation;
- spin_unlock(&dentry->d_lock);
len = 5;
type = 2;
}
config JBD2
tristate
select CRC32
+ select CRYPTO
+ select CRYPTO_CRC32C
help
This is a generic journaling layer for block devices that support
both 32-bit and 64-bit block numbers. It is currently used by
__brelse(bh);
}
+static void jbd2_commit_block_csum_set(journal_t *j,
+ struct journal_head *descriptor)
+{
+ struct commit_header *h;
+ __u32 csum;
+
+ if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ return;
+
+ h = (struct commit_header *)(jh2bh(descriptor)->b_data);
+ h->h_chksum_type = 0;
+ h->h_chksum_size = 0;
+ h->h_chksum[0] = 0;
+ csum = jbd2_chksum(j, j->j_csum_seed, jh2bh(descriptor)->b_data,
+ j->j_blocksize);
+ h->h_chksum[0] = cpu_to_be32(csum);
+}
+
/*
* Done it all: now submit the commit record. We should have
* cleaned up our previous buffers by now, so if we are in abort
tmp->h_chksum_size = JBD2_CRC32_CHKSUM_SIZE;
tmp->h_chksum[0] = cpu_to_be32(crc32_sum);
}
+ jbd2_commit_block_csum_set(journal, descriptor);
JBUFFER_TRACE(descriptor, "submit commit block");
lock_buffer(bh);
tag->t_blocknr_high = cpu_to_be32((block >> 31) >> 1);
}
+static void jbd2_descr_block_csum_set(journal_t *j,
+ struct journal_head *descriptor)
+{
+ struct jbd2_journal_block_tail *tail;
+ __u32 csum;
+
+ if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ return;
+
+ tail = (struct jbd2_journal_block_tail *)
+ (jh2bh(descriptor)->b_data + j->j_blocksize -
+ sizeof(struct jbd2_journal_block_tail));
+ tail->t_checksum = 0;
+ csum = jbd2_chksum(j, j->j_csum_seed, jh2bh(descriptor)->b_data,
+ j->j_blocksize);
+ tail->t_checksum = cpu_to_be32(csum);
+}
+
+static void jbd2_block_tag_csum_set(journal_t *j, journal_block_tag_t *tag,
+ struct buffer_head *bh, __u32 sequence)
+{
+ struct page *page = bh->b_page;
+ __u8 *addr;
+ __u32 csum;
+
+ if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ return;
+
+ sequence = cpu_to_be32(sequence);
+ addr = kmap_atomic(page, KM_USER0);
+ csum = jbd2_chksum(j, j->j_csum_seed, (__u8 *)&sequence,
+ sizeof(sequence));
+ csum = jbd2_chksum(j, csum, addr + offset_in_page(bh->b_data),
+ bh->b_size);
+ kunmap_atomic(addr, KM_USER0);
+
+ tag->t_checksum = cpu_to_be32(csum);
+}
/*
* jbd2_journal_commit_transaction
*
unsigned long first_block;
tid_t first_tid;
int update_tail;
+ int csum_size = 0;
+
+ if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ csum_size = sizeof(struct jbd2_journal_block_tail);
/*
* First job: lock down the current transaction and wait for
tag = (journal_block_tag_t *) tagp;
write_tag_block(tag_bytes, tag, jh2bh(jh)->b_blocknr);
- tag->t_flags = cpu_to_be32(tag_flag);
+ tag->t_flags = cpu_to_be16(tag_flag);
+ jbd2_block_tag_csum_set(journal, tag, jh2bh(new_jh),
+ commit_transaction->t_tid);
tagp += tag_bytes;
space_left -= tag_bytes;
if (bufs == journal->j_wbufsize ||
commit_transaction->t_buffers == NULL ||
- space_left < tag_bytes + 16) {
+ space_left < tag_bytes + 16 + csum_size) {
jbd_debug(4, "JBD2: Submit %d IOs\n", bufs);
submitting the IOs. "tag" still points to
the last tag we set up. */
- tag->t_flags |= cpu_to_be32(JBD2_FLAG_LAST_TAG);
+ tag->t_flags |= cpu_to_be16(JBD2_FLAG_LAST_TAG);
+ jbd2_descr_block_csum_set(journal, descriptor);
start_journal_io:
for (i = 0; i < bufs; i++) {
struct buffer_head *bh = wbuf[i];
static void __journal_abort_soft (journal_t *journal, int errno);
static int jbd2_journal_create_slab(size_t slab_size);
+/* Checksumming functions */
+int jbd2_verify_csum_type(journal_t *j, journal_superblock_t *sb)
+{
+ if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ return 1;
+
+ return sb->s_checksum_type == JBD2_CRC32C_CHKSUM;
+}
+
+static __u32 jbd2_superblock_csum(journal_t *j, journal_superblock_t *sb)
+{
+ __u32 csum, old_csum;
+
+ old_csum = sb->s_checksum;
+ sb->s_checksum = 0;
+ csum = jbd2_chksum(j, ~0, (char *)sb, sizeof(journal_superblock_t));
+ sb->s_checksum = old_csum;
+
+ return cpu_to_be32(csum);
+}
+
+int jbd2_superblock_csum_verify(journal_t *j, journal_superblock_t *sb)
+{
+ if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ return 1;
+
+ return sb->s_checksum == jbd2_superblock_csum(j, sb);
+}
+
+void jbd2_superblock_csum_set(journal_t *j, journal_superblock_t *sb)
+{
+ if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ return;
+
+ sb->s_checksum = jbd2_superblock_csum(j, sb);
+}
+
/*
* Helper function used to manage commit timeouts
*/
jbd_debug(1, "JBD2: updating superblock error (errno %d)\n",
journal->j_errno);
sb->s_errno = cpu_to_be32(journal->j_errno);
+ jbd2_superblock_csum_set(journal, sb);
read_unlock(&journal->j_state_lock);
jbd2_write_superblock(journal, WRITE_SYNC);
}
}
+ if (buffer_verified(bh))
+ return 0;
+
sb = journal->j_superblock;
err = -EINVAL;
goto out;
}
+ if (JBD2_HAS_COMPAT_FEATURE(journal, JBD2_FEATURE_COMPAT_CHECKSUM) &&
+ JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V2)) {
+ /* Can't have checksum v1 and v2 on at the same time! */
+ printk(KERN_ERR "JBD: Can't enable checksumming v1 and v2 "
+ "at the same time!\n");
+ goto out;
+ }
+
+ if (!jbd2_verify_csum_type(journal, sb)) {
+ printk(KERN_ERR "JBD: Unknown checksum type\n");
+ goto out;
+ }
+
+ /* Load the checksum driver */
+ if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V2)) {
+ journal->j_chksum_driver = crypto_alloc_shash("crc32c", 0, 0);
+ if (IS_ERR(journal->j_chksum_driver)) {
+ printk(KERN_ERR "JBD: Cannot load crc32c driver.\n");
+ err = PTR_ERR(journal->j_chksum_driver);
+ journal->j_chksum_driver = NULL;
+ goto out;
+ }
+ }
+
+ /* Check superblock checksum */
+ if (!jbd2_superblock_csum_verify(journal, sb)) {
+ printk(KERN_ERR "JBD: journal checksum error\n");
+ goto out;
+ }
+
+ /* Precompute checksum seed for all metadata */
+ if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ journal->j_csum_seed = jbd2_chksum(journal, ~0, sb->s_uuid,
+ sizeof(sb->s_uuid));
+
+ set_buffer_verified(bh);
+
return 0;
out:
iput(journal->j_inode);
if (journal->j_revoke)
jbd2_journal_destroy_revoke(journal);
+ if (journal->j_chksum_driver)
+ crypto_free_shash(journal->j_chksum_driver);
kfree(journal->j_wbuf);
kfree(journal);
int jbd2_journal_set_features (journal_t *journal, unsigned long compat,
unsigned long ro, unsigned long incompat)
{
+#define INCOMPAT_FEATURE_ON(f) \
+ ((incompat & (f)) && !(sb->s_feature_incompat & cpu_to_be32(f)))
+#define COMPAT_FEATURE_ON(f) \
+ ((compat & (f)) && !(sb->s_feature_compat & cpu_to_be32(f)))
journal_superblock_t *sb;
if (jbd2_journal_check_used_features(journal, compat, ro, incompat))
if (!jbd2_journal_check_available_features(journal, compat, ro, incompat))
return 0;
+ /* Asking for checksumming v2 and v1? Only give them v2. */
+ if (incompat & JBD2_FEATURE_INCOMPAT_CSUM_V2 &&
+ compat & JBD2_FEATURE_COMPAT_CHECKSUM)
+ compat &= ~JBD2_FEATURE_COMPAT_CHECKSUM;
+
jbd_debug(1, "Setting new features 0x%lx/0x%lx/0x%lx\n",
compat, ro, incompat);
sb = journal->j_superblock;
+ /* If enabling v2 checksums, update superblock */
+ if (INCOMPAT_FEATURE_ON(JBD2_FEATURE_INCOMPAT_CSUM_V2)) {
+ sb->s_checksum_type = JBD2_CRC32C_CHKSUM;
+ sb->s_feature_compat &=
+ ~cpu_to_be32(JBD2_FEATURE_COMPAT_CHECKSUM);
+
+ /* Load the checksum driver */
+ if (journal->j_chksum_driver == NULL) {
+ journal->j_chksum_driver = crypto_alloc_shash("crc32c",
+ 0, 0);
+ if (IS_ERR(journal->j_chksum_driver)) {
+ printk(KERN_ERR "JBD: Cannot load crc32c "
+ "driver.\n");
+ journal->j_chksum_driver = NULL;
+ return 0;
+ }
+ }
+
+ /* Precompute checksum seed for all metadata */
+ if (JBD2_HAS_INCOMPAT_FEATURE(journal,
+ JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ journal->j_csum_seed = jbd2_chksum(journal, ~0,
+ sb->s_uuid,
+ sizeof(sb->s_uuid));
+ }
+
+ /* If enabling v1 checksums, downgrade superblock */
+ if (COMPAT_FEATURE_ON(JBD2_FEATURE_COMPAT_CHECKSUM))
+ sb->s_feature_incompat &=
+ ~cpu_to_be32(JBD2_FEATURE_INCOMPAT_CSUM_V2);
+
sb->s_feature_compat |= cpu_to_be32(compat);
sb->s_feature_ro_compat |= cpu_to_be32(ro);
sb->s_feature_incompat |= cpu_to_be32(incompat);
return 1;
+#undef COMPAT_FEATURE_ON
+#undef INCOMPAT_FEATURE_ON
}
/*
*/
size_t journal_tag_bytes(journal_t *journal)
{
+ journal_block_tag_t tag;
+ size_t x = 0;
+
+ if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ x += sizeof(tag.t_checksum);
+
if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_64BIT))
- return JBD2_TAG_SIZE64;
+ return x + JBD2_TAG_SIZE64;
else
- return JBD2_TAG_SIZE32;
+ return x + JBD2_TAG_SIZE32;
}
/*
return 0;
}
+static int jbd2_descr_block_csum_verify(journal_t *j,
+ void *buf)
+{
+ struct jbd2_journal_block_tail *tail;
+ __u32 provided, calculated;
+
+ if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ return 1;
+
+ tail = (struct jbd2_journal_block_tail *)(buf + j->j_blocksize -
+ sizeof(struct jbd2_journal_block_tail));
+ provided = tail->t_checksum;
+ tail->t_checksum = 0;
+ calculated = jbd2_chksum(j, j->j_csum_seed, buf, j->j_blocksize);
+ tail->t_checksum = provided;
+
+ provided = be32_to_cpu(provided);
+ return provided == calculated;
+}
/*
* Count the number of in-use tags in a journal descriptor block.
int nr = 0, size = journal->j_blocksize;
int tag_bytes = journal_tag_bytes(journal);
+ if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ size -= sizeof(struct jbd2_journal_block_tail);
+
tagp = &bh->b_data[sizeof(journal_header_t)];
while ((tagp - bh->b_data + tag_bytes) <= size) {
nr++;
tagp += tag_bytes;
- if (!(tag->t_flags & cpu_to_be32(JBD2_FLAG_SAME_UUID)))
+ if (!(tag->t_flags & cpu_to_be16(JBD2_FLAG_SAME_UUID)))
tagp += 16;
- if (tag->t_flags & cpu_to_be32(JBD2_FLAG_LAST_TAG))
+ if (tag->t_flags & cpu_to_be16(JBD2_FLAG_LAST_TAG))
break;
}
return 0;
}
+static int jbd2_commit_block_csum_verify(journal_t *j, void *buf)
+{
+ struct commit_header *h;
+ __u32 provided, calculated;
+
+ if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ return 1;
+
+ h = buf;
+ provided = h->h_chksum[0];
+ h->h_chksum[0] = 0;
+ calculated = jbd2_chksum(j, j->j_csum_seed, buf, j->j_blocksize);
+ h->h_chksum[0] = provided;
+
+ provided = be32_to_cpu(provided);
+ return provided == calculated;
+}
+
+static int jbd2_block_tag_csum_verify(journal_t *j, journal_block_tag_t *tag,
+ void *buf, __u32 sequence)
+{
+ __u32 provided, calculated;
+
+ if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ return 1;
+
+ sequence = cpu_to_be32(sequence);
+ calculated = jbd2_chksum(j, j->j_csum_seed, (__u8 *)&sequence,
+ sizeof(sequence));
+ calculated = jbd2_chksum(j, calculated, buf, j->j_blocksize);
+ provided = be32_to_cpu(tag->t_checksum);
+
+ return provided == cpu_to_be32(calculated);
+}
+
static int do_one_pass(journal_t *journal,
struct recovery_info *info, enum passtype pass)
{
int blocktype;
int tag_bytes = journal_tag_bytes(journal);
__u32 crc32_sum = ~0; /* Transactional Checksums */
+ int descr_csum_size = 0;
/*
* First thing is to establish what we expect to find in the log
switch(blocktype) {
case JBD2_DESCRIPTOR_BLOCK:
+ /* Verify checksum first */
+ if (JBD2_HAS_INCOMPAT_FEATURE(journal,
+ JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ descr_csum_size =
+ sizeof(struct jbd2_journal_block_tail);
+ if (descr_csum_size > 0 &&
+ !jbd2_descr_block_csum_verify(journal,
+ bh->b_data)) {
+ err = -EIO;
+ goto failed;
+ }
+
/* If it is a valid descriptor block, replay it
* in pass REPLAY; if journal_checksums enabled, then
* calculate checksums in PASS_SCAN, otherwise,
tagp = &bh->b_data[sizeof(journal_header_t)];
while ((tagp - bh->b_data + tag_bytes)
- <= journal->j_blocksize) {
+ <= journal->j_blocksize - descr_csum_size) {
unsigned long io_block;
tag = (journal_block_tag_t *) tagp;
- flags = be32_to_cpu(tag->t_flags);
+ flags = be16_to_cpu(tag->t_flags);
io_block = next_log_block++;
wrap(journal, next_log_block);
goto skip_write;
}
+ /* Look for block corruption */
+ if (!jbd2_block_tag_csum_verify(
+ journal, tag, obh->b_data,
+ be32_to_cpu(tmp->h_sequence))) {
+ brelse(obh);
+ success = -EIO;
+ printk(KERN_ERR "JBD: Invalid "
+ "checksum recovering "
+ "block %llu in log\n",
+ blocknr);
+ continue;
+ }
+
/* Find a buffer for the new
* data being restored */
nbh = __getblk(journal->j_fs_dev,
}
crc32_sum = ~0;
}
+ if (pass == PASS_SCAN &&
+ !jbd2_commit_block_csum_verify(journal,
+ bh->b_data)) {
+ info->end_transaction = next_commit_ID;
+
+ if (!JBD2_HAS_INCOMPAT_FEATURE(journal,
+ JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT)) {
+ journal->j_failed_commit =
+ next_commit_ID;
+ brelse(bh);
+ break;
+ }
+ }
brelse(bh);
next_commit_ID++;
continue;
return err;
}
+static int jbd2_revoke_block_csum_verify(journal_t *j,
+ void *buf)
+{
+ struct jbd2_journal_revoke_tail *tail;
+ __u32 provided, calculated;
+
+ if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ return 1;
+
+ tail = (struct jbd2_journal_revoke_tail *)(buf + j->j_blocksize -
+ sizeof(struct jbd2_journal_revoke_tail));
+ provided = tail->r_checksum;
+ tail->r_checksum = 0;
+ calculated = jbd2_chksum(j, j->j_csum_seed, buf, j->j_blocksize);
+ tail->r_checksum = provided;
+
+ provided = be32_to_cpu(provided);
+ return provided == calculated;
+}
/* Scan a revoke record, marking all blocks mentioned as revoked. */
offset = sizeof(jbd2_journal_revoke_header_t);
max = be32_to_cpu(header->r_count);
+ if (!jbd2_revoke_block_csum_verify(journal, header))
+ return -EINVAL;
+
if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_64BIT))
record_len = 8;
struct jbd2_revoke_record_s *record,
int write_op)
{
+ int csum_size = 0;
struct journal_head *descriptor;
int offset;
journal_header_t *header;
descriptor = *descriptorp;
offset = *offsetp;
+ /* Do we need to leave space at the end for a checksum? */
+ if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ csum_size = sizeof(struct jbd2_journal_revoke_tail);
+
/* Make sure we have a descriptor with space left for the record */
if (descriptor) {
- if (offset == journal->j_blocksize) {
+ if (offset >= journal->j_blocksize - csum_size) {
flush_descriptor(journal, descriptor, offset, write_op);
descriptor = NULL;
}
*offsetp = offset;
}
+static void jbd2_revoke_csum_set(journal_t *j,
+ struct journal_head *descriptor)
+{
+ struct jbd2_journal_revoke_tail *tail;
+ __u32 csum;
+
+ if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ return;
+
+ tail = (struct jbd2_journal_revoke_tail *)
+ (jh2bh(descriptor)->b_data + j->j_blocksize -
+ sizeof(struct jbd2_journal_revoke_tail));
+ tail->r_checksum = 0;
+ csum = jbd2_chksum(j, j->j_csum_seed, jh2bh(descriptor)->b_data,
+ j->j_blocksize);
+ tail->r_checksum = cpu_to_be32(csum);
+}
+
/*
* Flush a revoke descriptor out to the journal. If we are aborting,
* this is a noop; otherwise we are generating a buffer which needs to
header = (jbd2_journal_revoke_header_t *) jh2bh(descriptor)->b_data;
header->r_count = cpu_to_be32(offset);
+ jbd2_revoke_csum_set(journal, descriptor);
+
set_buffer_jwrite(bh);
BUFFER_TRACE(bh, "write");
set_buffer_dirty(bh);
alloc_transaction:
if (!journal->j_running_transaction) {
- new_transaction = kmem_cache_alloc(transaction_cache,
- gfp_mask | __GFP_ZERO);
+ new_transaction = kmem_cache_zalloc(transaction_cache,
+ gfp_mask);
if (!new_transaction) {
/*
* If __GFP_FS is not present, then we may be
struct jffs2_inodirty *wbuf_inodes;
struct rw_semaphore wbuf_sem; /* Protects the write buffer */
+ struct delayed_work wbuf_dwork; /* write-buffer write-out work */
+ int wbuf_queued; /* non-zero delayed work is queued */
+ spinlock_t wbuf_dwork_lock; /* protects wbuf_dwork and and wbuf_queued */
+
unsigned char *oobbuf;
int oobavail; /* How many bytes are available for JFFS2 in OOB */
#endif
#define jffs2_ubivol(c) (0)
#define jffs2_ubivol_setup(c) (0)
#define jffs2_ubivol_cleanup(c) do {} while (0)
+#define jffs2_dirty_trigger(c) do {} while (0)
#else /* NAND and/or ECC'd NOR support present */
#define jffs2_nor_wbuf_flash(c) (c->mtd->type == MTD_NORFLASH && ! (c->mtd->flags & MTD_BIT_WRITEABLE))
int jffs2_nor_wbuf_flash_setup(struct jffs2_sb_info *c);
void jffs2_nor_wbuf_flash_cleanup(struct jffs2_sb_info *c);
+void jffs2_dirty_trigger(struct jffs2_sb_info *c);
#endif /* WRITEBUFFER */
-static inline void jffs2_dirty_trigger(struct jffs2_sb_info *c)
-{
- OFNI_BS_2SFFJ(c)->s_dirt = 1;
-}
-
/* background.c */
int jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c);
void jffs2_stop_garbage_collect_thread(struct jffs2_sb_info *c);
inode_init_once(&f->vfs_inode);
}
-static void jffs2_write_super(struct super_block *sb)
-{
- struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
-
- lock_super(sb);
- sb->s_dirt = 0;
-
- if (!(sb->s_flags & MS_RDONLY)) {
- jffs2_dbg(1, "%s()\n", __func__);
- jffs2_flush_wbuf_gc(c, 0);
- }
-
- unlock_super(sb);
-}
-
static const char *jffs2_compr_name(unsigned int compr)
{
switch (compr) {
{
struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
- jffs2_write_super(sb);
-
mutex_lock(&c->alloc_sem);
jffs2_flush_wbuf_pad(c);
mutex_unlock(&c->alloc_sem);
.alloc_inode = jffs2_alloc_inode,
.destroy_inode =jffs2_destroy_inode,
.put_super = jffs2_put_super,
- .write_super = jffs2_write_super,
.statfs = jffs2_statfs,
.remount_fs = jffs2_remount_fs,
.evict_inode = jffs2_evict_inode,
jffs2_dbg(2, "%s()\n", __func__);
- if (sb->s_dirt)
- jffs2_write_super(sb);
-
mutex_lock(&c->alloc_sem);
jffs2_flush_wbuf_pad(c);
mutex_unlock(&c->alloc_sem);
#include <linux/mtd/nand.h>
#include <linux/jiffies.h>
#include <linux/sched.h>
+#include <linux/writeback.h>
#include "nodelist.h"
{
struct jffs2_inodirty *new;
- /* Mark the superblock dirty so that kupdated will flush... */
+ /* Schedule delayed write-buffer write-out */
jffs2_dirty_trigger(c);
if (jffs2_wbuf_pending_for_ino(c, ino))
return 1;
}
+static struct jffs2_sb_info *work_to_sb(struct work_struct *work)
+{
+ struct delayed_work *dwork;
+
+ dwork = container_of(work, struct delayed_work, work);
+ return container_of(dwork, struct jffs2_sb_info, wbuf_dwork);
+}
+
+static void delayed_wbuf_sync(struct work_struct *work)
+{
+ struct jffs2_sb_info *c = work_to_sb(work);
+ struct super_block *sb = OFNI_BS_2SFFJ(c);
+
+ spin_lock(&c->wbuf_dwork_lock);
+ c->wbuf_queued = 0;
+ spin_unlock(&c->wbuf_dwork_lock);
+
+ if (!(sb->s_flags & MS_RDONLY)) {
+ jffs2_dbg(1, "%s()\n", __func__);
+ jffs2_flush_wbuf_gc(c, 0);
+ }
+}
+
+void jffs2_dirty_trigger(struct jffs2_sb_info *c)
+{
+ struct super_block *sb = OFNI_BS_2SFFJ(c);
+ unsigned long delay;
+
+ if (sb->s_flags & MS_RDONLY)
+ return;
+
+ spin_lock(&c->wbuf_dwork_lock);
+ if (!c->wbuf_queued) {
+ jffs2_dbg(1, "%s()\n", __func__);
+ delay = msecs_to_jiffies(dirty_writeback_interval * 10);
+ queue_delayed_work(system_long_wq, &c->wbuf_dwork, delay);
+ c->wbuf_queued = 1;
+ }
+ spin_unlock(&c->wbuf_dwork_lock);
+}
+
int jffs2_nand_flash_setup(struct jffs2_sb_info *c)
{
struct nand_ecclayout *oinfo = c->mtd->ecclayout;
/* Initialise write buffer */
init_rwsem(&c->wbuf_sem);
+ spin_lock_init(&c->wbuf_dwork_lock);
+ INIT_DELAYED_WORK(&c->wbuf_dwork, delayed_wbuf_sync);
c->wbuf_pagesize = c->mtd->writesize;
c->wbuf_ofs = 0xFFFFFFFF;
/* Initialize write buffer */
init_rwsem(&c->wbuf_sem);
-
-
+ spin_lock_init(&c->wbuf_dwork_lock);
+ INIT_DELAYED_WORK(&c->wbuf_dwork, delayed_wbuf_sync);
c->wbuf_pagesize = c->mtd->erasesize;
/* Find a suitable c->sector_size
/* Initialize write buffer */
init_rwsem(&c->wbuf_sem);
+ spin_lock_init(&c->wbuf_dwork_lock);
+ INIT_DELAYED_WORK(&c->wbuf_dwork, delayed_wbuf_sync);
+
c->wbuf_pagesize = c->mtd->writesize;
c->wbuf_ofs = 0xFFFFFFFF;
return 0;
init_rwsem(&c->wbuf_sem);
+ spin_lock_init(&c->wbuf_dwork_lock);
+ INIT_DELAYED_WORK(&c->wbuf_dwork, delayed_wbuf_sync);
c->wbuf_pagesize = c->mtd->writesize;
c->wbuf_ofs = 0xFFFFFFFF;
u32 nlm_version = (nlm_init->nfs_version == 2) ? 1 : 4;
int status;
- status = lockd_up();
+ status = lockd_up(nlm_init->net);
if (status < 0)
return ERR_PTR(status);
nlm_init->hostname, nlm_init->noresvport,
nlm_init->net);
if (host == NULL) {
- lockd_down();
+ lockd_down(nlm_init->net);
return ERR_PTR(-ENOLCK);
}
*/
void nlmclnt_done(struct nlm_host *host)
{
+ struct net *net = host->net;
+
nlmclnt_release_host(host);
- lockd_down();
+ lockd_down(net);
}
EXPORT_SYMBOL_GPL(nlmclnt_done);
struct nlm_wait *block;
struct file_lock *fl, *next;
u32 nsmstate;
+ struct net *net = host->net;
allow_signal(SIGKILL);
down_write(&host->h_rwsem);
- lockd_up(); /* note: this cannot fail as lockd is already running */
+ lockd_up(net); /* note: this cannot fail as lockd is already running */
dprintk("lockd: reclaiming locks for host %s\n", host->h_name);
/* Release host handle after use */
nlmclnt_release_host(host);
- lockd_down();
+ lockd_down(net);
return 0;
}
return err;
}
-static int lockd_up_net(struct net *net)
+static int lockd_up_net(struct svc_serv *serv, struct net *net)
{
struct lockd_net *ln = net_generic(net, lockd_net_id);
- struct svc_serv *serv = nlmsvc_rqst->rq_server;
int error;
- if (ln->nlmsvc_users)
+ if (ln->nlmsvc_users++)
return 0;
- error = svc_rpcb_setup(serv, net);
+ error = svc_bind(serv, net);
if (error)
- goto err_rpcb;
+ goto err_bind;
error = make_socks(serv, net);
if (error < 0)
goto err_socks;
+ dprintk("lockd_up_net: per-net data created; net=%p\n", net);
return 0;
err_socks:
svc_rpcb_cleanup(serv, net);
-err_rpcb:
+err_bind:
+ ln->nlmsvc_users--;
return error;
}
-static void lockd_down_net(struct net *net)
+static void lockd_down_net(struct svc_serv *serv, struct net *net)
{
struct lockd_net *ln = net_generic(net, lockd_net_id);
- struct svc_serv *serv = nlmsvc_rqst->rq_server;
if (ln->nlmsvc_users) {
if (--ln->nlmsvc_users == 0) {
nlm_shutdown_hosts_net(net);
svc_shutdown_net(serv, net);
+ dprintk("lockd_down_net: per-net data destroyed; net=%p\n", net);
}
} else {
printk(KERN_ERR "lockd_down_net: no users! task=%p, net=%p\n",
}
}
-/*
- * Bring up the lockd process if it's not already up.
- */
-int lockd_up(void)
+static int lockd_start_svc(struct svc_serv *serv)
+{
+ int error;
+
+ if (nlmsvc_rqst)
+ return 0;
+
+ /*
+ * Create the kernel thread and wait for it to start.
+ */
+ nlmsvc_rqst = svc_prepare_thread(serv, &serv->sv_pools[0], NUMA_NO_NODE);
+ if (IS_ERR(nlmsvc_rqst)) {
+ error = PTR_ERR(nlmsvc_rqst);
+ printk(KERN_WARNING
+ "lockd_up: svc_rqst allocation failed, error=%d\n",
+ error);
+ goto out_rqst;
+ }
+
+ svc_sock_update_bufs(serv);
+ serv->sv_maxconn = nlm_max_connections;
+
+ nlmsvc_task = kthread_run(lockd, nlmsvc_rqst, serv->sv_name);
+ if (IS_ERR(nlmsvc_task)) {
+ error = PTR_ERR(nlmsvc_task);
+ printk(KERN_WARNING
+ "lockd_up: kthread_run failed, error=%d\n", error);
+ goto out_task;
+ }
+ dprintk("lockd_up: service started\n");
+ return 0;
+
+out_task:
+ svc_exit_thread(nlmsvc_rqst);
+ nlmsvc_task = NULL;
+out_rqst:
+ nlmsvc_rqst = NULL;
+ return error;
+}
+
+static struct svc_serv *lockd_create_svc(void)
{
struct svc_serv *serv;
- int error = 0;
- struct net *net = current->nsproxy->net_ns;
- mutex_lock(&nlmsvc_mutex);
/*
* Check whether we're already up and running.
*/
if (nlmsvc_rqst) {
- error = lockd_up_net(net);
- goto out;
+ /*
+ * Note: increase service usage, because later in case of error
+ * svc_destroy() will be called.
+ */
+ svc_get(nlmsvc_rqst->rq_server);
+ return nlmsvc_rqst->rq_server;
}
/*
printk(KERN_WARNING
"lockd_up: no pid, %d users??\n", nlmsvc_users);
- error = -ENOMEM;
serv = svc_create(&nlmsvc_program, LOCKD_BUFSIZE, NULL);
if (!serv) {
printk(KERN_WARNING "lockd_up: create service failed\n");
- goto out;
+ return ERR_PTR(-ENOMEM);
}
+ dprintk("lockd_up: service created\n");
+ return serv;
+}
- error = make_socks(serv, net);
- if (error < 0)
- goto destroy_and_out;
+/*
+ * Bring up the lockd process if it's not already up.
+ */
+int lockd_up(struct net *net)
+{
+ struct svc_serv *serv;
+ int error;
- /*
- * Create the kernel thread and wait for it to start.
- */
- nlmsvc_rqst = svc_prepare_thread(serv, &serv->sv_pools[0], NUMA_NO_NODE);
- if (IS_ERR(nlmsvc_rqst)) {
- error = PTR_ERR(nlmsvc_rqst);
- nlmsvc_rqst = NULL;
- printk(KERN_WARNING
- "lockd_up: svc_rqst allocation failed, error=%d\n",
- error);
- goto destroy_and_out;
+ mutex_lock(&nlmsvc_mutex);
+
+ serv = lockd_create_svc();
+ if (IS_ERR(serv)) {
+ error = PTR_ERR(serv);
+ goto err_create;
}
- svc_sock_update_bufs(serv);
- serv->sv_maxconn = nlm_max_connections;
+ error = lockd_up_net(serv, net);
+ if (error < 0)
+ goto err_net;
- nlmsvc_task = kthread_run(lockd, nlmsvc_rqst, serv->sv_name);
- if (IS_ERR(nlmsvc_task)) {
- error = PTR_ERR(nlmsvc_task);
- svc_exit_thread(nlmsvc_rqst);
- nlmsvc_task = NULL;
- nlmsvc_rqst = NULL;
- printk(KERN_WARNING
- "lockd_up: kthread_run failed, error=%d\n", error);
- goto destroy_and_out;
- }
+ error = lockd_start_svc(serv);
+ if (error < 0)
+ goto err_start;
+ nlmsvc_users++;
/*
* Note: svc_serv structures have an initial use count of 1,
* so we exit through here on both success and failure.
*/
-destroy_and_out:
+err_net:
svc_destroy(serv);
-out:
- if (!error) {
- struct lockd_net *ln = net_generic(net, lockd_net_id);
-
- ln->nlmsvc_users++;
- nlmsvc_users++;
- }
+err_create:
mutex_unlock(&nlmsvc_mutex);
return error;
+
+err_start:
+ lockd_down_net(serv, net);
+ goto err_net;
}
EXPORT_SYMBOL_GPL(lockd_up);
* Decrement the user count and bring down lockd if we're the last.
*/
void
-lockd_down(void)
+lockd_down(struct net *net)
{
mutex_lock(&nlmsvc_mutex);
+ lockd_down_net(nlmsvc_rqst->rq_server, net);
if (nlmsvc_users) {
- if (--nlmsvc_users) {
- lockd_down_net(current->nsproxy->net_ns);
+ if (--nlmsvc_users)
goto out;
- }
} else {
printk(KERN_ERR "lockd_down: no users! task=%p\n",
nlmsvc_task);
BUG();
}
kthread_stop(nlmsvc_task);
+ dprintk("lockd_down: service stopped\n");
svc_exit_thread(nlmsvc_rqst);
+ dprintk("lockd_down: service destroyed\n");
nlmsvc_task = NULL;
nlmsvc_rqst = NULL;
out:
SYSCALL_DEFINE2(flock, unsigned int, fd, unsigned int, cmd)
{
struct file *filp;
+ int fput_needed;
struct file_lock *lock;
int can_sleep, unlock;
int error;
error = -EBADF;
- filp = fget(fd);
+ filp = fget_light(fd, &fput_needed);
if (!filp)
goto out;
locks_free_lock(lock);
out_putf:
- fput(filp);
+ fput_light(filp, fput_needed);
out:
return error;
}
mntget(nd->path.mnt);
rcu_read_unlock();
- br_read_unlock(vfsmount_lock);
+ br_read_unlock(&vfsmount_lock);
nd->flags &= ~LOOKUP_RCU;
return 0;
if (unlikely(!__d_rcu_to_refcount(dentry, nd->seq))) {
spin_unlock(&dentry->d_lock);
rcu_read_unlock();
- br_read_unlock(vfsmount_lock);
+ br_read_unlock(&vfsmount_lock);
return -ECHILD;
}
BUG_ON(nd->inode != dentry->d_inode);
spin_unlock(&dentry->d_lock);
mntget(nd->path.mnt);
rcu_read_unlock();
- br_read_unlock(vfsmount_lock);
+ br_read_unlock(&vfsmount_lock);
}
if (likely(!(nd->flags & LOOKUP_JUMPED)))
struct mount *parent;
struct dentry *mountpoint;
- br_read_lock(vfsmount_lock);
+ br_read_lock(&vfsmount_lock);
parent = mnt->mnt_parent;
if (&parent->mnt == path->mnt) {
- br_read_unlock(vfsmount_lock);
+ br_read_unlock(&vfsmount_lock);
return 0;
}
mntget(&parent->mnt);
mountpoint = dget(mnt->mnt_mountpoint);
- br_read_unlock(vfsmount_lock);
+ br_read_unlock(&vfsmount_lock);
dput(path->dentry);
path->dentry = mountpoint;
mntput(path->mnt);
if (!(nd->flags & LOOKUP_ROOT))
nd->root.mnt = NULL;
rcu_read_unlock();
- br_read_unlock(vfsmount_lock);
+ br_read_unlock(&vfsmount_lock);
return -ECHILD;
}
* small and for now I'd prefer to have fast path as straight as possible.
* It _is_ time-critical.
*/
-static int do_lookup(struct nameidata *nd, struct qstr *name,
- struct path *path, struct inode **inode)
+static int lookup_fast(struct nameidata *nd, struct qstr *name,
+ struct path *path, struct inode **inode)
{
struct vfsmount *mnt = nd->path.mnt;
struct dentry *dentry, *parent = nd->path.dentry;
goto need_lookup;
}
}
-done:
+
path->mnt = mnt;
path->dentry = dentry;
err = follow_managed(path, nd->flags);
return 0;
need_lookup:
+ return 1;
+}
+
+/* Fast lookup failed, do it the slow way */
+static int lookup_slow(struct nameidata *nd, struct qstr *name,
+ struct path *path)
+{
+ struct dentry *dentry, *parent;
+ int err;
+
+ parent = nd->path.dentry;
BUG_ON(nd->inode != parent->d_inode);
mutex_lock(&parent->d_inode->i_mutex);
mutex_unlock(&parent->d_inode->i_mutex);
if (IS_ERR(dentry))
return PTR_ERR(dentry);
- goto done;
+ path->mnt = nd->path.mnt;
+ path->dentry = dentry;
+ err = follow_managed(path, nd->flags);
+ if (unlikely(err < 0)) {
+ path_put_conditional(path, nd);
+ return err;
+ }
+ if (err)
+ nd->flags |= LOOKUP_JUMPED;
+ return 0;
}
static inline int may_lookup(struct nameidata *nd)
if (!(nd->flags & LOOKUP_ROOT))
nd->root.mnt = NULL;
rcu_read_unlock();
- br_read_unlock(vfsmount_lock);
+ br_read_unlock(&vfsmount_lock);
}
}
*/
if (unlikely(type != LAST_NORM))
return handle_dots(nd, type);
- err = do_lookup(nd, name, path, &inode);
+ err = lookup_fast(nd, name, path, &inode);
if (unlikely(err)) {
- terminate_walk(nd);
- return err;
- }
- if (!inode) {
- path_to_nameidata(path, nd);
- terminate_walk(nd);
- return -ENOENT;
+ if (err < 0)
+ goto out_err;
+
+ err = lookup_slow(nd, name, path);
+ if (err < 0)
+ goto out_err;
+
+ inode = path->dentry->d_inode;
}
+ err = -ENOENT;
+ if (!inode)
+ goto out_path_put;
+
if (should_follow_link(inode, follow)) {
if (nd->flags & LOOKUP_RCU) {
if (unlikely(unlazy_walk(nd, path->dentry))) {
- terminate_walk(nd);
- return -ECHILD;
+ err = -ECHILD;
+ goto out_err;
}
}
BUG_ON(inode != path->dentry->d_inode);
path_to_nameidata(path, nd);
nd->inode = inode;
return 0;
+
+out_path_put:
+ path_to_nameidata(path, nd);
+out_err:
+ terminate_walk(nd);
+ return err;
}
/*
nd->path = nd->root;
nd->inode = inode;
if (flags & LOOKUP_RCU) {
- br_read_lock(vfsmount_lock);
+ br_read_lock(&vfsmount_lock);
rcu_read_lock();
nd->seq = __read_seqcount_begin(&nd->path.dentry->d_seq);
} else {
if (*name=='/') {
if (flags & LOOKUP_RCU) {
- br_read_lock(vfsmount_lock);
+ br_read_lock(&vfsmount_lock);
rcu_read_lock();
set_root_rcu(nd);
} else {
struct fs_struct *fs = current->fs;
unsigned seq;
- br_read_lock(vfsmount_lock);
+ br_read_lock(&vfsmount_lock);
rcu_read_lock();
do {
if (fput_needed)
*fp = file;
nd->seq = __read_seqcount_begin(&nd->path.dentry->d_seq);
- br_read_lock(vfsmount_lock);
+ br_read_lock(&vfsmount_lock);
rcu_read_lock();
} else {
path_get(&file->f_path);
int want_write = 0;
int acc_mode = op->acc_mode;
struct file *filp;
+ struct inode *inode;
+ int symlink_ok = 0;
+ struct path save_parent = { .dentry = NULL, .mnt = NULL };
+ bool retried = false;
int error;
nd->flags &= ~LOOKUP_PARENT;
}
if (!(open_flag & O_CREAT)) {
- int symlink_ok = 0;
if (nd->last.name[nd->last.len])
nd->flags |= LOOKUP_FOLLOW | LOOKUP_DIRECTORY;
if (open_flag & O_PATH && !(nd->flags & LOOKUP_FOLLOW))
symlink_ok = 1;
/* we _can_ be in RCU mode here */
- error = walk_component(nd, path, &nd->last, LAST_NORM,
- !symlink_ok);
- if (error < 0)
- return ERR_PTR(error);
- if (error) /* symlink */
- return NULL;
- /* sayonara */
- error = complete_walk(nd);
- if (error)
- return ERR_PTR(error);
+ error = lookup_fast(nd, &nd->last, path, &inode);
+ if (unlikely(error)) {
+ if (error < 0)
+ goto exit;
- error = -ENOTDIR;
- if (nd->flags & LOOKUP_DIRECTORY) {
- if (!nd->inode->i_op->lookup)
+ error = lookup_slow(nd, &nd->last, path);
+ if (error < 0)
goto exit;
+
+ inode = path->dentry->d_inode;
}
- audit_inode(pathname, nd->path.dentry);
- goto ok;
+ goto finish_lookup;
}
/* create side of things */
if (nd->last.name[nd->last.len])
goto exit;
+retry_lookup:
mutex_lock(&dir->d_inode->i_mutex);
dentry = lookup_hash(nd);
if (error)
nd->flags |= LOOKUP_JUMPED;
+ BUG_ON(nd->flags & LOOKUP_RCU);
+ inode = path->dentry->d_inode;
+finish_lookup:
+ /* we _can_ be in RCU mode here */
error = -ENOENT;
- if (!path->dentry->d_inode)
- goto exit_dput;
+ if (!inode) {
+ path_to_nameidata(path, nd);
+ goto exit;
+ }
- if (path->dentry->d_inode->i_op->follow_link)
+ if (should_follow_link(inode, !symlink_ok)) {
+ if (nd->flags & LOOKUP_RCU) {
+ if (unlikely(unlazy_walk(nd, path->dentry))) {
+ error = -ECHILD;
+ goto exit;
+ }
+ }
+ BUG_ON(inode != path->dentry->d_inode);
return NULL;
+ }
- path_to_nameidata(path, nd);
- nd->inode = path->dentry->d_inode;
+ if ((nd->flags & LOOKUP_RCU) || nd->path.mnt != path->mnt) {
+ path_to_nameidata(path, nd);
+ } else {
+ save_parent.dentry = nd->path.dentry;
+ save_parent.mnt = mntget(path->mnt);
+ nd->path.dentry = path->dentry;
+
+ }
+ nd->inode = inode;
/* Why this, you ask? _Now_ we might have grown LOOKUP_JUMPED... */
error = complete_walk(nd);
- if (error)
+ if (error) {
+ path_put(&save_parent);
return ERR_PTR(error);
+ }
error = -EISDIR;
- if (S_ISDIR(nd->inode->i_mode))
+ if ((open_flag & O_CREAT) && S_ISDIR(nd->inode->i_mode))
+ goto exit;
+ error = -ENOTDIR;
+ if ((nd->flags & LOOKUP_DIRECTORY) && !nd->inode->i_op->lookup)
goto exit;
+ audit_inode(pathname, nd->path.dentry);
ok:
if (!S_ISREG(nd->inode->i_mode))
will_truncate = 0;
if (error)
goto exit;
filp = nameidata_to_filp(nd);
+ if (filp == ERR_PTR(-EOPENSTALE) && save_parent.dentry && !retried) {
+ BUG_ON(save_parent.dentry != dir);
+ path_put(&nd->path);
+ nd->path = save_parent;
+ nd->inode = dir->d_inode;
+ save_parent.mnt = NULL;
+ save_parent.dentry = NULL;
+ if (want_write) {
+ mnt_drop_write(nd->path.mnt);
+ want_write = 0;
+ }
+ retried = true;
+ goto retry_lookup;
+ }
if (!IS_ERR(filp)) {
error = ima_file_check(filp, op->acc_mode);
if (error) {
out:
if (want_write)
mnt_drop_write(nd->path.mnt);
- path_put(&nd->path);
+ path_put(&save_parent);
+ terminate_walk(nd);
return filp;
exit_mutex_unlock:
if (base)
fput(base);
release_open_intent(nd);
+ if (filp == ERR_PTR(-EOPENSTALE)) {
+ if (flags & LOOKUP_RCU)
+ filp = ERR_PTR(-ECHILD);
+ else
+ filp = ERR_PTR(-ESTALE);
+ }
return filp;
out_filp:
{
int ret = 0;
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
mnt->mnt.mnt_flags |= MNT_WRITE_HOLD;
/*
* After storing MNT_WRITE_HOLD, we'll read the counters. This store
*/
smp_wmb();
mnt->mnt.mnt_flags &= ~MNT_WRITE_HOLD;
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
return ret;
}
static void __mnt_unmake_readonly(struct mount *mnt)
{
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
mnt->mnt.mnt_flags &= ~MNT_READONLY;
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
}
int sb_prepare_remount_readonly(struct super_block *sb)
if (atomic_long_read(&sb->s_remove_count))
return -EBUSY;
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
list_for_each_entry(mnt, &sb->s_mounts, mnt_instance) {
if (!(mnt->mnt.mnt_flags & MNT_READONLY)) {
mnt->mnt.mnt_flags |= MNT_WRITE_HOLD;
if (mnt->mnt.mnt_flags & MNT_WRITE_HOLD)
mnt->mnt.mnt_flags &= ~MNT_WRITE_HOLD;
}
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
return err;
}
{
struct mount *child_mnt;
- br_read_lock(vfsmount_lock);
+ br_read_lock(&vfsmount_lock);
child_mnt = __lookup_mnt(path->mnt, path->dentry, 1);
if (child_mnt) {
mnt_add_count(child_mnt, 1);
- br_read_unlock(vfsmount_lock);
+ br_read_unlock(&vfsmount_lock);
return &child_mnt->mnt;
} else {
- br_read_unlock(vfsmount_lock);
+ br_read_unlock(&vfsmount_lock);
return NULL;
}
}
mnt->mnt.mnt_sb = root->d_sb;
mnt->mnt_mountpoint = mnt->mnt.mnt_root;
mnt->mnt_parent = mnt;
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
list_add_tail(&mnt->mnt_instance, &root->d_sb->s_mounts);
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
return &mnt->mnt;
}
EXPORT_SYMBOL_GPL(vfs_kern_mount);
mnt->mnt.mnt_root = dget(root);
mnt->mnt_mountpoint = mnt->mnt.mnt_root;
mnt->mnt_parent = mnt;
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
list_add_tail(&mnt->mnt_instance, &sb->s_mounts);
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
if (flag & CL_SLAVE) {
list_add(&mnt->mnt_slave, &old->mnt_slave_list);
{
put_again:
#ifdef CONFIG_SMP
- br_read_lock(vfsmount_lock);
+ br_read_lock(&vfsmount_lock);
if (likely(atomic_read(&mnt->mnt_longterm))) {
mnt_add_count(mnt, -1);
- br_read_unlock(vfsmount_lock);
+ br_read_unlock(&vfsmount_lock);
return;
}
- br_read_unlock(vfsmount_lock);
+ br_read_unlock(&vfsmount_lock);
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
mnt_add_count(mnt, -1);
if (mnt_get_count(mnt)) {
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
return;
}
#else
mnt_add_count(mnt, -1);
if (likely(mnt_get_count(mnt)))
return;
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
#endif
if (unlikely(mnt->mnt_pinned)) {
mnt_add_count(mnt, mnt->mnt_pinned + 1);
mnt->mnt_pinned = 0;
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
acct_auto_close_mnt(&mnt->mnt);
goto put_again;
}
+
list_del(&mnt->mnt_instance);
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
mntfree(mnt);
}
void mnt_pin(struct vfsmount *mnt)
{
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
real_mount(mnt)->mnt_pinned++;
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
}
EXPORT_SYMBOL(mnt_pin);
void mnt_unpin(struct vfsmount *m)
{
struct mount *mnt = real_mount(m);
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
if (mnt->mnt_pinned) {
mnt_add_count(mnt, 1);
mnt->mnt_pinned--;
}
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
}
EXPORT_SYMBOL(mnt_unpin);
BUG_ON(!m);
/* write lock needed for mnt_get_count */
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
for (p = mnt; p; p = next_mnt(p, mnt)) {
actual_refs += mnt_get_count(p);
minimum_refs += 2;
}
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
if (actual_refs > minimum_refs)
return 0;
{
int ret = 1;
down_read(&namespace_sem);
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
if (propagate_mount_busy(real_mount(mnt), 2))
ret = 0;
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
up_read(&namespace_sem);
return ret;
}
struct dentry *dentry;
struct mount *m;
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
dentry = mnt->mnt_mountpoint;
m = mnt->mnt_parent;
mnt->mnt_mountpoint = mnt->mnt.mnt_root;
mnt->mnt_parent = mnt;
m->mnt_ghosts--;
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
dput(dentry);
mntput(&m->mnt);
}
list_del_init(&p->mnt_expire);
list_del_init(&p->mnt_list);
__touch_mnt_namespace(p->mnt_ns);
+ if (p->mnt_ns)
+ __mnt_make_shortterm(p);
p->mnt_ns = NULL;
- __mnt_make_shortterm(p);
list_del_init(&p->mnt_child);
if (mnt_has_parent(p)) {
p->mnt_parent->mnt_ghosts++;
* probably don't strictly need the lock here if we examined
* all race cases, but it's a slowpath.
*/
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
if (mnt_get_count(mnt) != 2) {
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
return -EBUSY;
}
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
if (!xchg(&mnt->mnt_expiry_mark, 1))
return -EAGAIN;
}
down_write(&namespace_sem);
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
event++;
if (!(flags & MNT_DETACH))
umount_tree(mnt, 1, &umount_list);
retval = 0;
}
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
up_write(&namespace_sem);
release_mounts(&umount_list);
return retval;
q = clone_mnt(p, p->mnt.mnt_root, flag);
if (!q)
goto Enomem;
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
list_add_tail(&q->mnt_list, &res->mnt_list);
attach_mnt(q, &path);
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
}
}
return res;
Enomem:
if (res) {
LIST_HEAD(umount_list);
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
umount_tree(res, 0, &umount_list);
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
release_mounts(&umount_list);
}
return NULL;
{
LIST_HEAD(umount_list);
down_write(&namespace_sem);
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
umount_tree(real_mount(mnt), 0, &umount_list);
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
up_write(&namespace_sem);
release_mounts(&umount_list);
}
if (err)
goto out_cleanup_ids;
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
if (IS_MNT_SHARED(dest_mnt)) {
for (p = source_mnt; p; p = next_mnt(p, source_mnt))
list_del_init(&child->mnt_hash);
commit_tree(child);
}
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
return 0;
goto out_unlock;
}
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
for (m = mnt; m; m = (recurse ? next_mnt(m, mnt) : NULL))
change_mnt_propagation(m, type);
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
out_unlock:
up_write(&namespace_sem);
err = graft_tree(mnt, path);
if (err) {
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
umount_tree(mnt, 0, &umount_list);
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
}
out2:
unlock_mount(path);
else
err = do_remount_sb(sb, flags, data, 0);
if (!err) {
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
mnt_flags |= mnt->mnt.mnt_flags & MNT_PROPAGATION_MASK;
mnt->mnt.mnt_flags = mnt_flags;
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
}
up_write(&sb->s_umount);
if (!err) {
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
touch_mnt_namespace(mnt->mnt_ns);
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
}
return err;
}
/* remove m from any expiration list it may be on */
if (!list_empty(&mnt->mnt_expire)) {
down_write(&namespace_sem);
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
list_del_init(&mnt->mnt_expire);
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
up_write(&namespace_sem);
}
mntput(m);
void mnt_set_expiry(struct vfsmount *mnt, struct list_head *expiry_list)
{
down_write(&namespace_sem);
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
list_add_tail(&real_mount(mnt)->mnt_expire, expiry_list);
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
up_write(&namespace_sem);
}
EXPORT_SYMBOL(mnt_set_expiry);
return;
down_write(&namespace_sem);
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
/* extract from the expiration list every vfsmount that matches the
* following criteria:
touch_mnt_namespace(mnt->mnt_ns);
umount_tree(mnt, 1, &umounts);
}
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
up_write(&namespace_sem);
release_mounts(&umounts);
struct mount *mnt = real_mount(m);
if (atomic_add_unless(&mnt->mnt_longterm, -1, 1))
return;
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
atomic_dec(&mnt->mnt_longterm);
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
#endif
}
return ERR_PTR(-ENOMEM);
}
new_ns->root = new;
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
list_add_tail(&new_ns->list, &new->mnt_list);
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
/*
* Second pass: switch the tsk->fs->* elements and mark new vfsmounts
int path_is_under(struct path *path1, struct path *path2)
{
int res;
- br_read_lock(vfsmount_lock);
+ br_read_lock(&vfsmount_lock);
res = is_path_reachable(real_mount(path1->mnt), path1->dentry, path2);
- br_read_unlock(vfsmount_lock);
+ br_read_unlock(&vfsmount_lock);
return res;
}
EXPORT_SYMBOL(path_is_under);
/* make sure we can reach put_old from new_root */
if (!is_path_reachable(real_mount(old.mnt), old.dentry, &new))
goto out4;
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
detach_mnt(new_mnt, &parent_path);
detach_mnt(root_mnt, &root_parent);
/* mount old root on put_old */
/* mount new_root on / */
attach_mnt(new_mnt, &root_parent);
touch_mnt_namespace(current->nsproxy->mnt_ns);
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
chroot_fs_refs(&root, &new);
error = 0;
out4:
for (u = 0; u < HASH_SIZE; u++)
INIT_LIST_HEAD(&mount_hashtable[u]);
- br_lock_init(vfsmount_lock);
+ br_lock_init(&vfsmount_lock);
err = sysfs_init();
if (err)
if (!atomic_dec_and_test(&ns->count))
return;
down_write(&namespace_sem);
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
umount_tree(ns->root, 0, &umount_list);
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
up_write(&namespace_sem);
release_mounts(&umount_list);
kfree(ns);
already_written = 0;
+ errno = file_update_time(file);
+ if (errno)
+ goto outrel;
+
bouncebuffer = vmalloc(bufsize);
if (!bouncebuffer) {
errno = -EIO; /* -ENOMEM */
}
vfree(bouncebuffer);
- file_update_time(file);
-
*ppos = pos;
if (pos > i_size_read(inode)) {
unsigned long flags; /* NCP_MOUNT_* flags */
unsigned int int_flags; /* internal flags */
#define NCP_IMOUNT_LOGGEDIN_POSSIBLE 0x0001
- __kernel_uid32_t mounted_uid; /* Who may umount() this filesystem? */
+ uid_t mounted_uid; /* Who may umount() this filesystem? */
struct pid *wdog_pid; /* Who cares for our watchdog packets? */
unsigned int ncp_fd; /* The socket to the ncp port */
unsigned int time_out; /* How long should I wait after
sending a NCP request? */
unsigned int retry_count; /* And how often should I retry? */
unsigned char mounted_vol[NCP_VOLNAME_LEN + 1];
- __kernel_uid32_t uid;
- __kernel_gid32_t gid;
- __kernel_mode_t file_mode;
- __kernel_mode_t dir_mode;
+ uid_t uid;
+ gid_t gid;
+ umode_t file_mode;
+ umode_t dir_mode;
int info_fd;
};
If unsure, say N.
+config NFS_V2
+ bool "NFS client support for NFS version 2"
+ depends on NFS_FS
+ default y
+ help
+ This option enables support for version 2 of the NFS protocol
+ (RFC 1094) in the kernel's NFS client.
+
+ If unsure, say Y.
+
config NFS_V3
bool "NFS client support for NFS version 3"
depends on NFS_FS
+ default y
help
This option enables support for version 3 of the NFS protocol
(RFC 1813) in the kernel's NFS client.
obj-$(CONFIG_NFS_FS) += nfs.o
-nfs-y := client.o dir.o file.o getroot.o inode.o super.o nfs2xdr.o \
- direct.o pagelist.o proc.o read.o symlink.o unlink.o \
+nfs-y := client.o dir.o file.o getroot.o inode.o super.o \
+ direct.o pagelist.o read.o symlink.o unlink.o \
write.o namespace.o mount_clnt.o \
dns_resolve.o cache_lib.o
nfs-$(CONFIG_ROOT_NFS) += nfsroot.o
+nfs-$(CONFIG_NFS_V2) += proc.o nfs2xdr.o
nfs-$(CONFIG_NFS_V3) += nfs3proc.o nfs3xdr.o
nfs-$(CONFIG_NFS_V3_ACL) += nfs3acl.o
nfs-$(CONFIG_NFS_V4) += nfs4proc.o nfs4xdr.o nfs4state.o nfs4renewd.o \
struct parallel_io *par = bio->bi_private;
const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
- struct nfs_read_data *rdata = (struct nfs_read_data *)par->data;
do {
struct page *page = bvec->bv_page;
SetPageUptodate(page);
} while (bvec >= bio->bi_io_vec);
if (!uptodate) {
- if (!rdata->pnfs_error)
- rdata->pnfs_error = -EIO;
- pnfs_set_lo_fail(rdata->lseg);
+ struct nfs_read_data *rdata = par->data;
+ struct nfs_pgio_header *header = rdata->header;
+
+ if (!header->pnfs_error)
+ header->pnfs_error = -EIO;
+ pnfs_set_lo_fail(header->lseg);
}
bio_put(bio);
put_parallel(par);
{
struct nfs_read_data *rdata = data;
- rdata->task.tk_status = rdata->pnfs_error;
+ rdata->task.tk_status = rdata->header->pnfs_error;
INIT_WORK(&rdata->task.u.tk_work, bl_read_cleanup);
schedule_work(&rdata->task.u.tk_work);
}
static enum pnfs_try_status
bl_read_pagelist(struct nfs_read_data *rdata)
{
+ struct nfs_pgio_header *header = rdata->header;
int i, hole;
struct bio *bio = NULL;
struct pnfs_block_extent *be = NULL, *cow_read = NULL;
int pg_index = rdata->args.pgbase >> PAGE_CACHE_SHIFT;
dprintk("%s enter nr_pages %u offset %lld count %u\n", __func__,
- rdata->npages, f_offset, (unsigned int)rdata->args.count);
+ rdata->pages.npages, f_offset, (unsigned int)rdata->args.count);
par = alloc_parallel(rdata);
if (!par)
isect = (sector_t) (f_offset >> SECTOR_SHIFT);
/* Code assumes extents are page-aligned */
- for (i = pg_index; i < rdata->npages; i++) {
+ for (i = pg_index; i < rdata->pages.npages; i++) {
if (!extent_length) {
/* We've used up the previous extent */
bl_put_extent(be);
bl_put_extent(cow_read);
bio = bl_submit_bio(READ, bio);
/* Get the next one */
- be = bl_find_get_extent(BLK_LSEG2EXT(rdata->lseg),
+ be = bl_find_get_extent(BLK_LSEG2EXT(header->lseg),
isect, &cow_read);
if (!be) {
- rdata->pnfs_error = -EIO;
+ header->pnfs_error = -EIO;
goto out;
}
extent_length = be->be_length -
struct pnfs_block_extent *be_read;
be_read = (hole && cow_read) ? cow_read : be;
- bio = bl_add_page_to_bio(bio, rdata->npages - i, READ,
+ bio = bl_add_page_to_bio(bio, rdata->pages.npages - i,
+ READ,
isect, pages[i], be_read,
bl_end_io_read, par);
if (IS_ERR(bio)) {
- rdata->pnfs_error = PTR_ERR(bio);
+ header->pnfs_error = PTR_ERR(bio);
bio = NULL;
goto out;
}
isect += PAGE_CACHE_SECTORS;
extent_length -= PAGE_CACHE_SECTORS;
}
- if ((isect << SECTOR_SHIFT) >= rdata->inode->i_size) {
+ if ((isect << SECTOR_SHIFT) >= header->inode->i_size) {
rdata->res.eof = 1;
- rdata->res.count = rdata->inode->i_size - f_offset;
+ rdata->res.count = header->inode->i_size - f_offset;
} else {
rdata->res.count = (isect << SECTOR_SHIFT) - f_offset;
}
struct parallel_io *par = bio->bi_private;
const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
- struct nfs_write_data *wdata = (struct nfs_write_data *)par->data;
do {
struct page *page = bvec->bv_page;
} while (bvec >= bio->bi_io_vec);
if (unlikely(!uptodate)) {
- if (!wdata->pnfs_error)
- wdata->pnfs_error = -EIO;
- pnfs_set_lo_fail(wdata->lseg);
+ struct nfs_write_data *data = par->data;
+ struct nfs_pgio_header *header = data->header;
+
+ if (!header->pnfs_error)
+ header->pnfs_error = -EIO;
+ pnfs_set_lo_fail(header->lseg);
}
bio_put(bio);
put_parallel(par);
{
struct parallel_io *par = bio->bi_private;
const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
- struct nfs_write_data *wdata = (struct nfs_write_data *)par->data;
+ struct nfs_write_data *data = par->data;
+ struct nfs_pgio_header *header = data->header;
if (!uptodate) {
- if (!wdata->pnfs_error)
- wdata->pnfs_error = -EIO;
- pnfs_set_lo_fail(wdata->lseg);
+ if (!header->pnfs_error)
+ header->pnfs_error = -EIO;
+ pnfs_set_lo_fail(header->lseg);
}
bio_put(bio);
put_parallel(par);
dprintk("%s enter\n", __func__);
task = container_of(work, struct rpc_task, u.tk_work);
wdata = container_of(task, struct nfs_write_data, task);
- if (likely(!wdata->pnfs_error)) {
+ if (likely(!wdata->header->pnfs_error)) {
/* Marks for LAYOUTCOMMIT */
- mark_extents_written(BLK_LSEG2EXT(wdata->lseg),
+ mark_extents_written(BLK_LSEG2EXT(wdata->header->lseg),
wdata->args.offset, wdata->args.count);
}
pnfs_ld_write_done(wdata);
{
struct nfs_write_data *wdata = data;
- if (unlikely(wdata->pnfs_error)) {
- bl_free_short_extents(&BLK_LSEG2EXT(wdata->lseg)->bl_inval,
+ if (unlikely(wdata->header->pnfs_error)) {
+ bl_free_short_extents(&BLK_LSEG2EXT(wdata->header->lseg)->bl_inval,
num_se);
}
- wdata->task.tk_status = wdata->pnfs_error;
+ wdata->task.tk_status = wdata->header->pnfs_error;
wdata->verf.committed = NFS_FILE_SYNC;
INIT_WORK(&wdata->task.u.tk_work, bl_write_cleanup);
schedule_work(&wdata->task.u.tk_work);
static enum pnfs_try_status
bl_write_pagelist(struct nfs_write_data *wdata, int sync)
{
+ struct nfs_pgio_header *header = wdata->header;
int i, ret, npg_zero, pg_index, last = 0;
struct bio *bio = NULL;
struct pnfs_block_extent *be = NULL, *cow_read = NULL;
pgoff_t index;
u64 temp;
int npg_per_block =
- NFS_SERVER(wdata->inode)->pnfs_blksize >> PAGE_CACHE_SHIFT;
+ NFS_SERVER(header->inode)->pnfs_blksize >> PAGE_CACHE_SHIFT;
dprintk("%s enter, %Zu@%lld\n", __func__, count, offset);
/* At this point, wdata->pages is a (sequential) list of nfs_pages.
/* At this point, have to be more careful with error handling */
isect = (sector_t) ((offset & (long)PAGE_CACHE_MASK) >> SECTOR_SHIFT);
- be = bl_find_get_extent(BLK_LSEG2EXT(wdata->lseg), isect, &cow_read);
+ be = bl_find_get_extent(BLK_LSEG2EXT(header->lseg), isect, &cow_read);
if (!be || !is_writable(be, isect)) {
dprintk("%s no matching extents!\n", __func__);
goto out_mds;
dprintk("%s zero %dth page: index %lu isect %llu\n",
__func__, npg_zero, index,
(unsigned long long)isect);
- page = bl_find_get_zeroing_page(wdata->inode, index,
+ page = bl_find_get_zeroing_page(header->inode, index,
cow_read);
if (unlikely(IS_ERR(page))) {
- wdata->pnfs_error = PTR_ERR(page);
+ header->pnfs_error = PTR_ERR(page);
goto out;
} else if (page == NULL)
goto next_page;
__func__, ret);
end_page_writeback(page);
page_cache_release(page);
- wdata->pnfs_error = ret;
+ header->pnfs_error = ret;
goto out;
}
if (likely(!bl_push_one_short_extent(be->be_inval)))
else {
end_page_writeback(page);
page_cache_release(page);
- wdata->pnfs_error = -ENOMEM;
+ header->pnfs_error = -ENOMEM;
goto out;
}
/* FIXME: This should be done in bi_end_io */
- mark_extents_written(BLK_LSEG2EXT(wdata->lseg),
+ mark_extents_written(BLK_LSEG2EXT(header->lseg),
page->index << PAGE_CACHE_SHIFT,
PAGE_CACHE_SIZE);
isect, page, be,
bl_end_io_write_zero, par);
if (IS_ERR(bio)) {
- wdata->pnfs_error = PTR_ERR(bio);
+ header->pnfs_error = PTR_ERR(bio);
bio = NULL;
goto out;
}
/* Middle pages */
pg_index = wdata->args.pgbase >> PAGE_CACHE_SHIFT;
- for (i = pg_index; i < wdata->npages; i++) {
+ for (i = pg_index; i < wdata->pages.npages; i++) {
if (!extent_length) {
/* We've used up the previous extent */
bl_put_extent(be);
bio = bl_submit_bio(WRITE, bio);
/* Get the next one */
- be = bl_find_get_extent(BLK_LSEG2EXT(wdata->lseg),
+ be = bl_find_get_extent(BLK_LSEG2EXT(header->lseg),
isect, NULL);
if (!be || !is_writable(be, isect)) {
- wdata->pnfs_error = -EINVAL;
+ header->pnfs_error = -EINVAL;
goto out;
}
if (be->be_state == PNFS_BLOCK_INVALID_DATA) {
be->be_inval)))
par->bse_count++;
else {
- wdata->pnfs_error = -ENOMEM;
+ header->pnfs_error = -ENOMEM;
goto out;
}
}
if (unlikely(ret)) {
dprintk("%s bl_mark_sectors_init fail %d\n",
__func__, ret);
- wdata->pnfs_error = ret;
+ header->pnfs_error = ret;
goto out;
}
}
- bio = bl_add_page_to_bio(bio, wdata->npages - i, WRITE,
+ bio = bl_add_page_to_bio(bio, wdata->pages.npages - i, WRITE,
isect, pages[i], be,
bl_end_io_write, par);
if (IS_ERR(bio)) {
- wdata->pnfs_error = PTR_ERR(bio);
+ header->pnfs_error = PTR_ERR(bio);
bio = NULL;
goto out;
}
uint8_t *dataptr;
DECLARE_WAITQUEUE(wq, current);
int offset, len, i, rc;
- struct net *net = server->nfs_client->net;
+ struct net *net = server->nfs_client->cl_net;
struct nfs_net *nn = net_generic(net, nfs_net_id);
struct bl_dev_msg *reply = &nn->bl_mount_reply;
#include <linux/kthread.h>
#include <linux/sunrpc/svcauth_gss.h>
#include <linux/sunrpc/bc_xprt.h>
+#include <linux/nsproxy.h>
#include <net/inet_sock.h>
char svc_name[12];
int ret = 0;
int minorversion_setup;
+ struct net *net = current->nsproxy->net_ns;
mutex_lock(&nfs_callback_mutex);
if (cb_info->users++ || cb_info->task != NULL) {
goto out_err;
}
+ ret = svc_bind(serv, net);
+ if (ret < 0) {
+ printk(KERN_WARNING "NFS: bind callback service failed\n");
+ goto out_err;
+ }
+
minorversion_setup = nfs_minorversion_callback_svc_setup(minorversion,
serv, xprt, &rqstp, &callback_svc);
if (!minorversion_setup) {
dprintk("NFS: Couldn't create callback socket or server thread; "
"err = %d\n", ret);
cb_info->users--;
+ if (serv)
+ svc_shutdown_net(serv, net);
goto out;
}
cb_info->users--;
if (cb_info->users == 0 && cb_info->task != NULL) {
kthread_stop(cb_info->task);
+ svc_shutdown_net(cb_info->serv, current->nsproxy->net_ns);
svc_exit_thread(cb_info->rqst);
cb_info->serv = NULL;
cb_info->rqst = NULL;
int
check_gss_callback_principal(struct nfs_client *clp, struct svc_rqst *rqstp)
{
- char *p = svc_gss_principal(rqstp);
+ char *p = rqstp->rq_cred.cr_principal;
if (rqstp->rq_authop->flavour != RPC_AUTH_GSS)
return 1;
static int nfs_get_cb_ident_idr(struct nfs_client *clp, int minorversion)
{
int ret = 0;
- struct nfs_net *nn = net_generic(clp->net, nfs_net_id);
+ struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);
if (clp->rpc_ops->version != 4 || minorversion != 0)
return ret;
* RPC cruft for NFS
*/
static const struct rpc_version *nfs_version[5] = {
+#ifdef CONFIG_NFS_V2
[2] = &nfs_version2,
+#endif
#ifdef CONFIG_NFS_V3
[3] = &nfs_version3,
#endif
#endif /* CONFIG_NFS_V3_ACL */
struct nfs_client_initdata {
+ unsigned long init_flags;
const char *hostname;
const struct sockaddr *addr;
size_t addrlen;
clp->cl_rpcclient = ERR_PTR(-EINVAL);
clp->cl_proto = cl_init->proto;
- clp->net = get_net(cl_init->net);
+ clp->cl_net = get_net(cl_init->net);
#ifdef CONFIG_NFS_V4
err = nfs_get_cb_ident_idr(clp, cl_init->minorversion);
spin_lock_init(&clp->cl_lock);
INIT_DELAYED_WORK(&clp->cl_renewd, nfs4_renew_state);
rpc_init_wait_queue(&clp->cl_rpcwaitq, "NFS client");
- clp->cl_boot_time = CURRENT_TIME;
clp->cl_state = 1 << NFS4CLNT_LEASE_EXPIRED;
clp->cl_minorversion = cl_init->minorversion;
clp->cl_mvops = nfs_v4_minor_ops[cl_init->minorversion];
if (nfs4_has_session(clp)) {
nfs4_deviceid_purge_client(clp);
nfs4_destroy_session(clp->cl_session);
+ nfs4_destroy_clientid(clp);
}
}
nfs_idmap_delete(clp);
rpc_destroy_wait_queue(&clp->cl_rpcwaitq);
+ kfree(clp->cl_serverowner);
+ kfree(clp->cl_serverscope);
+ kfree(clp->cl_implid);
}
/* idr_remove_all is not needed as all id's are removed by nfs_put_client */
/* nfs_client_lock held */
static void nfs_cb_idr_remove_locked(struct nfs_client *clp)
{
- struct nfs_net *nn = net_generic(clp->net, nfs_net_id);
+ struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);
if (clp->cl_cb_ident)
idr_remove(&nn->cb_ident_idr, clp->cl_cb_ident);
if (clp->cl_machine_cred != NULL)
put_rpccred(clp->cl_machine_cred);
- put_net(clp->net);
+ put_net(clp->cl_net);
kfree(clp->cl_hostname);
- kfree(clp->server_scope);
- kfree(clp->impl_id);
kfree(clp);
dprintk("<-- nfs_free_client()\n");
return;
dprintk("--> nfs_put_client({%d})\n", atomic_read(&clp->cl_count));
- nn = net_generic(clp->net, nfs_net_id);
+ nn = net_generic(clp->cl_net, nfs_net_id);
if (atomic_dec_and_lock(&clp->cl_count, &nn->nfs_client_lock)) {
list_del(&clp->cl_share_link);
clp->cl_cons_state == NFS_CS_SESSION_INITING))
return false;
+ smp_rmb();
+
/* Match the version and minorversion */
if (clp->rpc_ops->version != 4 ||
clp->cl_minorversion != minorversion)
return NULL;
}
+static bool nfs_client_init_is_complete(const struct nfs_client *clp)
+{
+ return clp->cl_cons_state != NFS_CS_INITING;
+}
+
+int nfs_wait_client_init_complete(const struct nfs_client *clp)
+{
+ return wait_event_killable(nfs_client_active_wq,
+ nfs_client_init_is_complete(clp));
+}
+
+/*
+ * Found an existing client. Make sure it's ready before returning.
+ */
+static struct nfs_client *
+nfs_found_client(const struct nfs_client_initdata *cl_init,
+ struct nfs_client *clp)
+{
+ int error;
+
+ error = nfs_wait_client_init_complete(clp);
+ if (error < 0) {
+ nfs_put_client(clp);
+ return ERR_PTR(-ERESTARTSYS);
+ }
+
+ if (clp->cl_cons_state < NFS_CS_READY) {
+ error = clp->cl_cons_state;
+ nfs_put_client(clp);
+ return ERR_PTR(error);
+ }
+
+ smp_rmb();
+
+ BUG_ON(clp->cl_cons_state != NFS_CS_READY);
+
+ dprintk("<-- %s found nfs_client %p for %s\n",
+ __func__, clp, cl_init->hostname ?: "");
+ return clp;
+}
+
/*
* Look up a client by IP address and protocol version
* - creates a new record if one doesn't yet exist
nfs_get_client(const struct nfs_client_initdata *cl_init,
const struct rpc_timeout *timeparms,
const char *ip_addr,
- rpc_authflavor_t authflavour,
- int noresvport)
+ rpc_authflavor_t authflavour)
{
struct nfs_client *clp, *new = NULL;
- int error;
struct nfs_net *nn = net_generic(cl_init->net, nfs_net_id);
dprintk("--> nfs_get_client(%s,v%u)\n",
spin_lock(&nn->nfs_client_lock);
clp = nfs_match_client(cl_init);
- if (clp)
- goto found_client;
- if (new)
- goto install_client;
+ if (clp) {
+ spin_unlock(&nn->nfs_client_lock);
+ if (new)
+ nfs_free_client(new);
+ return nfs_found_client(cl_init, clp);
+ }
+ if (new) {
+ list_add(&new->cl_share_link, &nn->nfs_client_list);
+ spin_unlock(&nn->nfs_client_lock);
+ new->cl_flags = cl_init->init_flags;
+ return cl_init->rpc_ops->init_client(new,
+ timeparms, ip_addr,
+ authflavour);
+ }
spin_unlock(&nn->nfs_client_lock);
new = nfs_alloc_client(cl_init);
} while (!IS_ERR(new));
- dprintk("--> nfs_get_client() = %ld [failed]\n", PTR_ERR(new));
+ dprintk("<-- nfs_get_client() Failed to find %s (%ld)\n",
+ cl_init->hostname ?: "", PTR_ERR(new));
return new;
-
- /* install a new client and return with it unready */
-install_client:
- clp = new;
- list_add(&clp->cl_share_link, &nn->nfs_client_list);
- spin_unlock(&nn->nfs_client_lock);
-
- error = cl_init->rpc_ops->init_client(clp, timeparms, ip_addr,
- authflavour, noresvport);
- if (error < 0) {
- nfs_put_client(clp);
- return ERR_PTR(error);
- }
- dprintk("--> nfs_get_client() = %p [new]\n", clp);
- return clp;
-
- /* found an existing client
- * - make sure it's ready before returning
- */
-found_client:
- spin_unlock(&nn->nfs_client_lock);
-
- if (new)
- nfs_free_client(new);
-
- error = wait_event_killable(nfs_client_active_wq,
- clp->cl_cons_state < NFS_CS_INITING);
- if (error < 0) {
- nfs_put_client(clp);
- return ERR_PTR(-ERESTARTSYS);
- }
-
- if (clp->cl_cons_state < NFS_CS_READY) {
- error = clp->cl_cons_state;
- nfs_put_client(clp);
- return ERR_PTR(error);
- }
-
- BUG_ON(clp->cl_cons_state != NFS_CS_READY);
-
- dprintk("--> nfs_get_client() = %p [share]\n", clp);
- return clp;
}
/*
*/
void nfs_mark_client_ready(struct nfs_client *clp, int state)
{
+ smp_wmb();
clp->cl_cons_state = state;
wake_up_all(&nfs_client_active_wq);
}
-/*
- * With sessions, the client is not marked ready until after a
- * successful EXCHANGE_ID and CREATE_SESSION.
- *
- * Map errors cl_cons_state errors to EPROTONOSUPPORT to indicate
- * other versions of NFS can be tried.
- */
-int nfs4_check_client_ready(struct nfs_client *clp)
-{
- if (!nfs4_has_session(clp))
- return 0;
- if (clp->cl_cons_state < NFS_CS_READY)
- return -EPROTONOSUPPORT;
- return 0;
-}
-
/*
* Initialise the timeout values for a connection
*/
*/
static int nfs_create_rpc_client(struct nfs_client *clp,
const struct rpc_timeout *timeparms,
- rpc_authflavor_t flavor,
- int discrtry, int noresvport)
+ rpc_authflavor_t flavor)
{
struct rpc_clnt *clnt = NULL;
struct rpc_create_args args = {
- .net = clp->net,
+ .net = clp->cl_net,
.protocol = clp->cl_proto,
.address = (struct sockaddr *)&clp->cl_addr,
.addrsize = clp->cl_addrlen,
.authflavor = flavor,
};
- if (discrtry)
+ if (test_bit(NFS_CS_DISCRTRY, &clp->cl_flags))
args.flags |= RPC_CLNT_CREATE_DISCRTRY;
- if (noresvport)
+ if (test_bit(NFS_CS_NORESVPORT, &clp->cl_flags))
args.flags |= RPC_CLNT_CREATE_NONPRIVPORT;
if (!IS_ERR(clp->cl_rpcclient))
.nfs_version = clp->rpc_ops->version,
.noresvport = server->flags & NFS_MOUNT_NORESVPORT ?
1 : 0,
- .net = clp->net,
+ .net = clp->cl_net,
};
if (nlm_init.nfs_version > 3)
return 0;
}
-/*
- * Initialise an NFS2 or NFS3 client
+/**
+ * nfs_init_client - Initialise an NFS2 or NFS3 client
+ *
+ * @clp: nfs_client to initialise
+ * @timeparms: timeout parameters for underlying RPC transport
+ * @ip_addr: IP presentation address (not used)
+ * @authflavor: authentication flavor for underlying RPC transport
+ *
+ * Returns pointer to an NFS client, or an ERR_PTR value.
*/
-int nfs_init_client(struct nfs_client *clp, const struct rpc_timeout *timeparms,
- const char *ip_addr, rpc_authflavor_t authflavour,
- int noresvport)
+struct nfs_client *nfs_init_client(struct nfs_client *clp,
+ const struct rpc_timeout *timeparms,
+ const char *ip_addr, rpc_authflavor_t authflavour)
{
int error;
if (clp->cl_cons_state == NFS_CS_READY) {
/* the client is already initialised */
dprintk("<-- nfs_init_client() = 0 [already %p]\n", clp);
- return 0;
+ return clp;
}
/*
* Create a client RPC handle for doing FSSTAT with UNIX auth only
* - RFC 2623, sec 2.3.2
*/
- error = nfs_create_rpc_client(clp, timeparms, RPC_AUTH_UNIX,
- 0, noresvport);
+ error = nfs_create_rpc_client(clp, timeparms, RPC_AUTH_UNIX);
if (error < 0)
goto error;
nfs_mark_client_ready(clp, NFS_CS_READY);
- return 0;
+ return clp;
error:
nfs_mark_client_ready(clp, error);
+ nfs_put_client(clp);
dprintk("<-- nfs_init_client() = xerror %d\n", error);
- return error;
+ return ERR_PTR(error);
}
/*
.hostname = data->nfs_server.hostname,
.addr = (const struct sockaddr *)&data->nfs_server.address,
.addrlen = data->nfs_server.addrlen,
- .rpc_ops = &nfs_v2_clientops,
+ .rpc_ops = NULL,
.proto = data->nfs_server.protocol,
.net = data->net,
};
dprintk("--> nfs_init_server()\n");
+ switch (data->version) {
+#ifdef CONFIG_NFS_V2
+ case 2:
+ cl_init.rpc_ops = &nfs_v2_clientops;
+ break;
+#endif
#ifdef CONFIG_NFS_V3
- if (data->version == 3)
+ case 3:
cl_init.rpc_ops = &nfs_v3_clientops;
+ break;
#endif
+ default:
+ return -EPROTONOSUPPORT;
+ }
nfs_init_timeout_values(&timeparms, data->nfs_server.protocol,
data->timeo, data->retrans);
+ if (data->flags & NFS_MOUNT_NORESVPORT)
+ set_bit(NFS_CS_NORESVPORT, &cl_init.init_flags);
/* Allocate or find a client reference we can use */
- clp = nfs_get_client(&cl_init, &timeparms, NULL, RPC_AUTH_UNIX,
- data->flags & NFS_MOUNT_NORESVPORT);
+ clp = nfs_get_client(&cl_init, &timeparms, NULL, RPC_AUTH_UNIX);
if (IS_ERR(clp)) {
dprintk("<-- nfs_init_server() = error %ld\n", PTR_ERR(clp));
return PTR_ERR(clp);
server->options = data->options;
server->caps |= NFS_CAP_HARDLINKS|NFS_CAP_SYMLINKS|NFS_CAP_FILEID|
NFS_CAP_MODE|NFS_CAP_NLINK|NFS_CAP_OWNER|NFS_CAP_OWNER_GROUP|
- NFS_CAP_ATIME|NFS_CAP_CTIME|NFS_CAP_MTIME;
+ NFS_CAP_ATIME|NFS_CAP_CTIME|NFS_CAP_MTIME|NFS_CAP_CHANGE_ATTR;
if (data->rsize)
server->rsize = nfs_block_size(data->rsize, NULL);
static void nfs_server_insert_lists(struct nfs_server *server)
{
struct nfs_client *clp = server->nfs_client;
- struct nfs_net *nn = net_generic(clp->net, nfs_net_id);
+ struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);
spin_lock(&nn->nfs_client_lock);
list_add_tail_rcu(&server->client_link, &clp->cl_superblocks);
if (clp == NULL)
return;
- nn = net_generic(clp->net, nfs_net_id);
+ nn = net_generic(clp->cl_net, nfs_net_id);
spin_lock(&nn->nfs_client_lock);
list_del_rcu(&server->client_link);
if (list_empty(&clp->cl_superblocks))
* so that the client back channel can find the
* nfs_client struct
*/
- clp->cl_cons_state = NFS_CS_SESSION_INITING;
+ nfs_mark_client_ready(clp, NFS_CS_SESSION_INITING);
}
#endif /* CONFIG_NFS_V4_1 */
return nfs4_init_callback(clp);
}
-/*
- * Initialise an NFS4 client record
+/**
+ * nfs4_init_client - Initialise an NFS4 client record
+ *
+ * @clp: nfs_client to initialise
+ * @timeparms: timeout parameters for underlying RPC transport
+ * @ip_addr: callback IP address in presentation format
+ * @authflavor: authentication flavor for underlying RPC transport
+ *
+ * Returns pointer to an NFS client, or an ERR_PTR value.
*/
-int nfs4_init_client(struct nfs_client *clp,
- const struct rpc_timeout *timeparms,
- const char *ip_addr,
- rpc_authflavor_t authflavour,
- int noresvport)
+struct nfs_client *nfs4_init_client(struct nfs_client *clp,
+ const struct rpc_timeout *timeparms,
+ const char *ip_addr,
+ rpc_authflavor_t authflavour)
{
char buf[INET6_ADDRSTRLEN + 1];
int error;
if (clp->cl_cons_state == NFS_CS_READY) {
/* the client is initialised already */
dprintk("<-- nfs4_init_client() = 0 [already %p]\n", clp);
- return 0;
+ return clp;
}
/* Check NFS protocol revision and initialize RPC op vector */
clp->rpc_ops = &nfs_v4_clientops;
- error = nfs_create_rpc_client(clp, timeparms, authflavour,
- 1, noresvport);
+ __set_bit(NFS_CS_DISCRTRY, &clp->cl_flags);
+ error = nfs_create_rpc_client(clp, timeparms, authflavour);
if (error < 0)
goto error;
if (!nfs4_has_session(clp))
nfs_mark_client_ready(clp, NFS_CS_READY);
- return 0;
+ return clp;
error:
nfs_mark_client_ready(clp, error);
+ nfs_put_client(clp);
dprintk("<-- nfs4_init_client() = xerror %d\n", error);
- return error;
+ return ERR_PTR(error);
}
/*
dprintk("--> nfs4_set_client()\n");
+ if (server->flags & NFS_MOUNT_NORESVPORT)
+ set_bit(NFS_CS_NORESVPORT, &cl_init.init_flags);
+
/* Allocate or find a client reference we can use */
- clp = nfs_get_client(&cl_init, timeparms, ip_addr, authflavour,
- server->flags & NFS_MOUNT_NORESVPORT);
+ clp = nfs_get_client(&cl_init, timeparms, ip_addr, authflavour);
if (IS_ERR(clp)) {
error = PTR_ERR(clp);
goto error;
* the MDS.
*/
struct nfs_client *nfs4_set_ds_client(struct nfs_client* mds_clp,
- const struct sockaddr *ds_addr,
- int ds_addrlen, int ds_proto)
+ const struct sockaddr *ds_addr, int ds_addrlen,
+ int ds_proto, unsigned int ds_timeo, unsigned int ds_retrans)
{
struct nfs_client_initdata cl_init = {
.addr = ds_addr,
.rpc_ops = &nfs_v4_clientops,
.proto = ds_proto,
.minorversion = mds_clp->cl_minorversion,
- .net = mds_clp->net,
- };
- struct rpc_timeout ds_timeout = {
- .to_initval = 15 * HZ,
- .to_maxval = 15 * HZ,
- .to_retries = 1,
- .to_exponential = 1,
+ .net = mds_clp->cl_net,
};
+ struct rpc_timeout ds_timeout;
struct nfs_client *clp;
/*
* cl_ipaddr so as to use the same EXCHANGE_ID co_ownerid as the MDS
* (section 13.1 RFC 5661).
*/
+ nfs_init_timeout_values(&ds_timeout, ds_proto, ds_timeo, ds_retrans);
clp = nfs_get_client(&cl_init, &ds_timeout, mds_clp->cl_ipaddr,
- mds_clp->cl_rpcclient->cl_auth->au_flavor, 0);
+ mds_clp->cl_rpcclient->cl_auth->au_flavor);
dprintk("<-- %s %p\n", __func__, clp);
return clp;
rpc_protocol(parent_server->client),
parent_server->client->cl_timeout,
parent_client->cl_mvops->minor_version,
- parent_client->net);
+ parent_client->cl_net);
if (error < 0)
goto error;
idr_init(&nn->cb_ident_idr);
#endif
spin_lock_init(&nn->nfs_client_lock);
+ nn->boot_time = CURRENT_TIME;
}
#ifdef CONFIG_PROC_FS
* nfs_client_return_marked_delegations - return previously marked delegations
* @clp: nfs_client to process
*
+ * Note that this function is designed to be called by the state
+ * manager thread. For this reason, it cannot flush the dirty data,
+ * since that could deadlock in case of a state recovery error.
+ *
* Returns zero on success, or a negative errno value.
*/
int nfs_client_return_marked_delegations(struct nfs_client *clp)
server);
rcu_read_unlock();
- if (delegation != NULL) {
- filemap_flush(inode->i_mapping);
+ if (delegation != NULL)
err = __nfs_inode_return_delegation(inode,
delegation, 0);
- }
iput(inode);
if (!err)
goto restart;
* nfs_inode_return_delegation - synchronously return a delegation
* @inode: inode to process
*
+ * This routine will always flush any dirty data to disk on the
+ * assumption that if we need to return the delegation, then
+ * we should stop caching.
+ *
* Returns zero on success, or a negative errno value.
*/
int nfs_inode_return_delegation(struct inode *inode)
struct nfs_delegation *delegation;
int err = 0;
+ nfs_wb_all(inode);
if (rcu_access_pointer(nfsi->delegation) != NULL) {
delegation = nfs_detach_delegation(nfsi, server);
if (delegation != NULL) {
- nfs_wb_all(inode);
err = __nfs_inode_return_delegation(inode, delegation, 1);
}
}
struct nfs_client *clp = server->nfs_client;
struct nfs_delegation *delegation;
+ filemap_flush(inode->i_mapping);
+
rcu_read_lock();
delegation = rcu_dereference(NFS_I(inode)->delegation);
static inline int nfs_inode_return_delegation(struct inode *inode)
{
+ nfs_wb_all(inode);
return 0;
}
#endif
return 0;
}
+static
+bool nfs_use_readdirplus(struct inode *dir, struct file *filp)
+{
+ if (!nfs_server_capable(dir, NFS_CAP_READDIRPLUS))
+ return false;
+ if (test_and_clear_bit(NFS_INO_ADVISE_RDPLUS, &NFS_I(dir)->flags))
+ return true;
+ if (filp->f_pos == 0)
+ return true;
+ return false;
+}
+
+/*
+ * This function is called by the lookup code to request the use of
+ * readdirplus to accelerate any future lookups in the same
+ * directory.
+ */
+static
+void nfs_advise_use_readdirplus(struct inode *dir)
+{
+ set_bit(NFS_INO_ADVISE_RDPLUS, &NFS_I(dir)->flags);
+}
+
static
void nfs_prime_dcache(struct dentry *parent, struct nfs_entry *entry)
{
desc->file = filp;
desc->dir_cookie = &dir_ctx->dir_cookie;
desc->decode = NFS_PROTO(inode)->decode_dirent;
- desc->plus = NFS_USE_READDIRPLUS(inode);
+ desc->plus = nfs_use_readdirplus(inode, filp) ? 1 : 0;
nfs_block_sillyrename(dentry);
res = nfs_revalidate_mapping(inode, filp->f_mapping);
if (!inode) {
if (nfs_neg_need_reval(dir, dentry, nd))
goto out_bad;
- goto out_valid;
+ goto out_valid_noent;
}
if (is_bad_inode(inode)) {
if (fhandle == NULL || fattr == NULL)
goto out_error;
- error = NFS_PROTO(dir)->lookup(NFS_SERVER(dir)->client, dir, &dentry->d_name, fhandle, fattr);
+ error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr);
if (error)
goto out_bad;
if (nfs_compare_fh(NFS_FH(inode), fhandle))
out_set_verifier:
nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
out_valid:
+ /* Success: notify readdir to use READDIRPLUS */
+ nfs_advise_use_readdirplus(dir);
+ out_valid_noent:
dput(parent);
dfprintk(LOOKUPCACHE, "NFS: %s(%s/%s) is valid\n",
__func__, dentry->d_parent->d_name.name,
parent = dentry->d_parent;
/* Protect against concurrent sillydeletes */
nfs_block_sillyrename(parent);
- error = NFS_PROTO(dir)->lookup(NFS_SERVER(dir)->client, dir, &dentry->d_name, fhandle, fattr);
+ error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr);
if (error == -ENOENT)
goto no_entry;
if (error < 0) {
if (IS_ERR(res))
goto out_unblock_sillyrename;
+ /* Success: notify readdir to use READDIRPLUS */
+ nfs_advise_use_readdirplus(dir);
+
no_entry:
res = d_materialise_unique(dentry, inode);
if (res != NULL) {
}
#ifdef CONFIG_NFS_V4
-static int nfs_open_revalidate(struct dentry *, struct nameidata *);
+static int nfs4_lookup_revalidate(struct dentry *, struct nameidata *);
const struct dentry_operations nfs4_dentry_operations = {
- .d_revalidate = nfs_open_revalidate,
+ .d_revalidate = nfs4_lookup_revalidate,
.d_delete = nfs_dentry_delete,
.d_iput = nfs_dentry_iput,
.d_automount = nfs_d_automount,
return nfs_lookup(dir, dentry, nd);
}
-static int nfs_open_revalidate(struct dentry *dentry, struct nameidata *nd)
+static int nfs4_lookup_revalidate(struct dentry *dentry, struct nameidata *nd)
{
struct dentry *parent = NULL;
struct inode *inode;
struct inode *dir;
- struct nfs_open_context *ctx;
- struct iattr attr;
int openflags, ret = 0;
if (nd->flags & LOOKUP_RCU)
/* We cannot do exclusive creation on a positive dentry */
if ((openflags & (O_CREAT|O_EXCL)) == (O_CREAT|O_EXCL))
goto no_open_dput;
- /* We can't create new files here */
- openflags &= ~(O_CREAT|O_EXCL);
-
- ctx = create_nfs_open_context(dentry, openflags);
- ret = PTR_ERR(ctx);
- if (IS_ERR(ctx))
- goto out;
- attr.ia_valid = ATTR_OPEN;
- if (openflags & O_TRUNC) {
- attr.ia_valid |= ATTR_SIZE;
- attr.ia_size = 0;
- nfs_wb_all(inode);
- }
+ /* Let f_op->open() actually open (and revalidate) the file */
+ ret = 1;
- /*
- * Note: we're not holding inode->i_mutex and so may be racing with
- * operations that change the directory. We therefore save the
- * change attribute *before* we do the RPC call.
- */
- inode = NFS_PROTO(dir)->open_context(dir, ctx, openflags, &attr);
- if (IS_ERR(inode)) {
- ret = PTR_ERR(inode);
- switch (ret) {
- case -EPERM:
- case -EACCES:
- case -EDQUOT:
- case -ENOSPC:
- case -EROFS:
- goto out_put_ctx;
- default:
- goto out_drop;
- }
- }
- iput(inode);
- if (inode != dentry->d_inode)
- goto out_drop;
-
- nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
- ret = nfs_intent_set_file(nd, ctx);
- if (ret >= 0)
- ret = 1;
out:
dput(parent);
return ret;
-out_drop:
- d_drop(dentry);
- ret = 0;
-out_put_ctx:
- put_nfs_open_context(ctx);
- goto out;
no_open_dput:
dput(parent);
if (dentry->d_inode)
goto out;
if (fhandle->size == 0) {
- error = NFS_PROTO(dir)->lookup(NFS_SERVER(dir)->client, dir, &dentry->d_name, fhandle, fattr);
+ error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr);
if (error)
goto out_error;
}
#include "internal.h"
#include "iostat.h"
+#include "pnfs.h"
#define NFSDBG_FACILITY NFSDBG_VFS
struct completion completion; /* wait for i/o completion */
/* commit state */
- struct list_head rewrite_list; /* saved nfs_write_data structs */
- struct nfs_write_data * commit_data; /* special write_data for commits */
+ struct nfs_mds_commit_info mds_cinfo; /* Storage for cinfo */
+ struct pnfs_ds_commit_info ds_cinfo; /* Storage for cinfo */
+ struct work_struct work;
int flags;
#define NFS_ODIRECT_DO_COMMIT (1) /* an unstable reply was received */
#define NFS_ODIRECT_RESCHED_WRITES (2) /* write verification failed */
struct nfs_writeverf verf; /* unstable write verifier */
};
+static const struct nfs_pgio_completion_ops nfs_direct_write_completion_ops;
+static const struct nfs_commit_completion_ops nfs_direct_commit_completion_ops;
static void nfs_direct_write_complete(struct nfs_direct_req *dreq, struct inode *inode);
-static const struct rpc_call_ops nfs_write_direct_ops;
+static void nfs_direct_write_schedule_work(struct work_struct *work);
static inline void get_dreq(struct nfs_direct_req *dreq)
{
return -EINVAL;
}
-static void nfs_direct_dirty_pages(struct page **pages, unsigned int pgbase, size_t count)
-{
- unsigned int npages;
- unsigned int i;
-
- if (count == 0)
- return;
- pages += (pgbase >> PAGE_SHIFT);
- npages = (count + (pgbase & ~PAGE_MASK) + PAGE_SIZE - 1) >> PAGE_SHIFT;
- for (i = 0; i < npages; i++) {
- struct page *page = pages[i];
- if (!PageCompound(page))
- set_page_dirty(page);
- }
-}
-
static void nfs_direct_release_pages(struct page **pages, unsigned int npages)
{
unsigned int i;
page_cache_release(pages[i]);
}
+void nfs_init_cinfo_from_dreq(struct nfs_commit_info *cinfo,
+ struct nfs_direct_req *dreq)
+{
+ cinfo->lock = &dreq->lock;
+ cinfo->mds = &dreq->mds_cinfo;
+ cinfo->ds = &dreq->ds_cinfo;
+ cinfo->dreq = dreq;
+ cinfo->completion_ops = &nfs_direct_commit_completion_ops;
+}
+
static inline struct nfs_direct_req *nfs_direct_req_alloc(void)
{
struct nfs_direct_req *dreq;
- dreq = kmem_cache_alloc(nfs_direct_cachep, GFP_KERNEL);
+ dreq = kmem_cache_zalloc(nfs_direct_cachep, GFP_KERNEL);
if (!dreq)
return NULL;
kref_init(&dreq->kref);
kref_get(&dreq->kref);
init_completion(&dreq->completion);
- INIT_LIST_HEAD(&dreq->rewrite_list);
- dreq->iocb = NULL;
- dreq->ctx = NULL;
- dreq->l_ctx = NULL;
+ INIT_LIST_HEAD(&dreq->mds_cinfo.list);
+ INIT_WORK(&dreq->work, nfs_direct_write_schedule_work);
spin_lock_init(&dreq->lock);
- atomic_set(&dreq->io_count, 0);
- dreq->count = 0;
- dreq->error = 0;
- dreq->flags = 0;
return dreq;
}
nfs_direct_req_release(dreq);
}
-/*
- * We must hold a reference to all the pages in this direct read request
- * until the RPCs complete. This could be long *after* we are woken up in
- * nfs_direct_wait (for instance, if someone hits ^C on a slow server).
- */
-static void nfs_direct_read_result(struct rpc_task *task, void *calldata)
+static void nfs_direct_readpage_release(struct nfs_page *req)
{
- struct nfs_read_data *data = calldata;
-
- nfs_readpage_result(task, data);
+ dprintk("NFS: direct read done (%s/%lld %d@%lld)\n",
+ req->wb_context->dentry->d_inode->i_sb->s_id,
+ (long long)NFS_FILEID(req->wb_context->dentry->d_inode),
+ req->wb_bytes,
+ (long long)req_offset(req));
+ nfs_release_request(req);
}
-static void nfs_direct_read_release(void *calldata)
+static void nfs_direct_read_completion(struct nfs_pgio_header *hdr)
{
+ unsigned long bytes = 0;
+ struct nfs_direct_req *dreq = hdr->dreq;
- struct nfs_read_data *data = calldata;
- struct nfs_direct_req *dreq = (struct nfs_direct_req *) data->req;
- int status = data->task.tk_status;
+ if (test_bit(NFS_IOHDR_REDO, &hdr->flags))
+ goto out_put;
spin_lock(&dreq->lock);
- if (unlikely(status < 0)) {
- dreq->error = status;
- spin_unlock(&dreq->lock);
- } else {
- dreq->count += data->res.count;
- spin_unlock(&dreq->lock);
- nfs_direct_dirty_pages(data->pagevec,
- data->args.pgbase,
- data->res.count);
- }
- nfs_direct_release_pages(data->pagevec, data->npages);
+ if (test_bit(NFS_IOHDR_ERROR, &hdr->flags) && (hdr->good_bytes == 0))
+ dreq->error = hdr->error;
+ else
+ dreq->count += hdr->good_bytes;
+ spin_unlock(&dreq->lock);
+ while (!list_empty(&hdr->pages)) {
+ struct nfs_page *req = nfs_list_entry(hdr->pages.next);
+ struct page *page = req->wb_page;
+
+ if (test_bit(NFS_IOHDR_EOF, &hdr->flags)) {
+ if (bytes > hdr->good_bytes)
+ zero_user(page, 0, PAGE_SIZE);
+ else if (hdr->good_bytes - bytes < PAGE_SIZE)
+ zero_user_segment(page,
+ hdr->good_bytes & ~PAGE_MASK,
+ PAGE_SIZE);
+ }
+ if (!PageCompound(page)) {
+ if (test_bit(NFS_IOHDR_ERROR, &hdr->flags)) {
+ if (bytes < hdr->good_bytes)
+ set_page_dirty(page);
+ } else
+ set_page_dirty(page);
+ }
+ bytes += req->wb_bytes;
+ nfs_list_remove_request(req);
+ nfs_direct_readpage_release(req);
+ }
+out_put:
if (put_dreq(dreq))
nfs_direct_complete(dreq);
- nfs_readdata_free(data);
+ hdr->release(hdr);
+}
+
+static void nfs_read_sync_pgio_error(struct list_head *head)
+{
+ struct nfs_page *req;
+
+ while (!list_empty(head)) {
+ req = nfs_list_entry(head->next);
+ nfs_list_remove_request(req);
+ nfs_release_request(req);
+ }
}
-static const struct rpc_call_ops nfs_read_direct_ops = {
- .rpc_call_prepare = nfs_read_prepare,
- .rpc_call_done = nfs_direct_read_result,
- .rpc_release = nfs_direct_read_release,
+static void nfs_direct_pgio_init(struct nfs_pgio_header *hdr)
+{
+ get_dreq(hdr->dreq);
+}
+
+static const struct nfs_pgio_completion_ops nfs_direct_read_completion_ops = {
+ .error_cleanup = nfs_read_sync_pgio_error,
+ .init_hdr = nfs_direct_pgio_init,
+ .completion = nfs_direct_read_completion,
};
/*
* handled automatically by nfs_direct_read_result(). Otherwise, if
* no requests have been sent, just return an error.
*/
-static ssize_t nfs_direct_read_schedule_segment(struct nfs_direct_req *dreq,
+static ssize_t nfs_direct_read_schedule_segment(struct nfs_pageio_descriptor *desc,
const struct iovec *iov,
loff_t pos)
{
+ struct nfs_direct_req *dreq = desc->pg_dreq;
struct nfs_open_context *ctx = dreq->ctx;
struct inode *inode = ctx->dentry->d_inode;
unsigned long user_addr = (unsigned long)iov->iov_base;
size_t count = iov->iov_len;
size_t rsize = NFS_SERVER(inode)->rsize;
- struct rpc_task *task;
- struct rpc_message msg = {
- .rpc_cred = ctx->cred,
- };
- struct rpc_task_setup task_setup_data = {
- .rpc_client = NFS_CLIENT(inode),
- .rpc_message = &msg,
- .callback_ops = &nfs_read_direct_ops,
- .workqueue = nfsiod_workqueue,
- .flags = RPC_TASK_ASYNC,
- };
unsigned int pgbase;
int result;
ssize_t started = 0;
+ struct page **pagevec = NULL;
+ unsigned int npages;
do {
- struct nfs_read_data *data;
size_t bytes;
+ int i;
pgbase = user_addr & ~PAGE_MASK;
- bytes = min(rsize,count);
+ bytes = min(max_t(size_t, rsize, PAGE_SIZE), count);
result = -ENOMEM;
- data = nfs_readdata_alloc(nfs_page_array_len(pgbase, bytes));
- if (unlikely(!data))
+ npages = nfs_page_array_len(pgbase, bytes);
+ if (!pagevec)
+ pagevec = kmalloc(npages * sizeof(struct page *),
+ GFP_KERNEL);
+ if (!pagevec)
break;
-
down_read(¤t->mm->mmap_sem);
result = get_user_pages(current, current->mm, user_addr,
- data->npages, 1, 0, data->pagevec, NULL);
+ npages, 1, 0, pagevec, NULL);
up_read(¤t->mm->mmap_sem);
- if (result < 0) {
- nfs_readdata_free(data);
+ if (result < 0)
break;
- }
- if ((unsigned)result < data->npages) {
+ if ((unsigned)result < npages) {
bytes = result * PAGE_SIZE;
if (bytes <= pgbase) {
- nfs_direct_release_pages(data->pagevec, result);
- nfs_readdata_free(data);
+ nfs_direct_release_pages(pagevec, result);
break;
}
bytes -= pgbase;
- data->npages = result;
+ npages = result;
}
- get_dreq(dreq);
-
- data->req = (struct nfs_page *) dreq;
- data->inode = inode;
- data->cred = msg.rpc_cred;
- data->args.fh = NFS_FH(inode);
- data->args.context = ctx;
- data->args.lock_context = dreq->l_ctx;
- data->args.offset = pos;
- data->args.pgbase = pgbase;
- data->args.pages = data->pagevec;
- data->args.count = bytes;
- data->res.fattr = &data->fattr;
- data->res.eof = 0;
- data->res.count = bytes;
- nfs_fattr_init(&data->fattr);
- msg.rpc_argp = &data->args;
- msg.rpc_resp = &data->res;
-
- task_setup_data.task = &data->task;
- task_setup_data.callback_data = data;
- NFS_PROTO(inode)->read_setup(data, &msg);
-
- task = rpc_run_task(&task_setup_data);
- if (IS_ERR(task))
- break;
- rpc_put_task(task);
-
- dprintk("NFS: %5u initiated direct read call "
- "(req %s/%Ld, %zu bytes @ offset %Lu)\n",
- data->task.tk_pid,
- inode->i_sb->s_id,
- (long long)NFS_FILEID(inode),
- bytes,
- (unsigned long long)data->args.offset);
-
- started += bytes;
- user_addr += bytes;
- pos += bytes;
- /* FIXME: Remove this unnecessary math from final patch */
- pgbase += bytes;
- pgbase &= ~PAGE_MASK;
- BUG_ON(pgbase != (user_addr & ~PAGE_MASK));
-
- count -= bytes;
- } while (count != 0);
+ for (i = 0; i < npages; i++) {
+ struct nfs_page *req;
+ unsigned int req_len = min_t(size_t, bytes, PAGE_SIZE - pgbase);
+ /* XXX do we need to do the eof zeroing found in async_filler? */
+ req = nfs_create_request(dreq->ctx, dreq->inode,
+ pagevec[i],
+ pgbase, req_len);
+ if (IS_ERR(req)) {
+ result = PTR_ERR(req);
+ break;
+ }
+ req->wb_index = pos >> PAGE_SHIFT;
+ req->wb_offset = pos & ~PAGE_MASK;
+ if (!nfs_pageio_add_request(desc, req)) {
+ result = desc->pg_error;
+ nfs_release_request(req);
+ break;
+ }
+ pgbase = 0;
+ bytes -= req_len;
+ started += req_len;
+ user_addr += req_len;
+ pos += req_len;
+ count -= req_len;
+ }
+ /* The nfs_page now hold references to these pages */
+ nfs_direct_release_pages(pagevec, npages);
+ } while (count != 0 && result >= 0);
+
+ kfree(pagevec);
if (started)
return started;
unsigned long nr_segs,
loff_t pos)
{
+ struct nfs_pageio_descriptor desc;
ssize_t result = -EINVAL;
size_t requested_bytes = 0;
unsigned long seg;
+ nfs_pageio_init_read(&desc, dreq->inode,
+ &nfs_direct_read_completion_ops);
get_dreq(dreq);
+ desc.pg_dreq = dreq;
for (seg = 0; seg < nr_segs; seg++) {
const struct iovec *vec = &iov[seg];
- result = nfs_direct_read_schedule_segment(dreq, vec, pos);
+ result = nfs_direct_read_schedule_segment(&desc, vec, pos);
if (result < 0)
break;
requested_bytes += result;
pos += vec->iov_len;
}
+ nfs_pageio_complete(&desc);
+
/*
* If no bytes were started, return the error, and let the
* generic layer handle the completion.
result = nfs_direct_read_schedule_iovec(dreq, iov, nr_segs, pos);
if (!result)
result = nfs_direct_wait(dreq);
+ NFS_I(inode)->read_io += result;
out_release:
nfs_direct_req_release(dreq);
out:
return result;
}
-static void nfs_direct_free_writedata(struct nfs_direct_req *dreq)
+static void nfs_inode_dio_write_done(struct inode *inode)
{
- while (!list_empty(&dreq->rewrite_list)) {
- struct nfs_write_data *data = list_entry(dreq->rewrite_list.next, struct nfs_write_data, pages);
- list_del(&data->pages);
- nfs_direct_release_pages(data->pagevec, data->npages);
- nfs_writedata_free(data);
- }
+ nfs_zap_mapping(inode, inode->i_mapping);
+ inode_dio_done(inode);
}
#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
static void nfs_direct_write_reschedule(struct nfs_direct_req *dreq)
{
- struct inode *inode = dreq->inode;
- struct list_head *p;
- struct nfs_write_data *data;
- struct rpc_task *task;
- struct rpc_message msg = {
- .rpc_cred = dreq->ctx->cred,
- };
- struct rpc_task_setup task_setup_data = {
- .rpc_client = NFS_CLIENT(inode),
- .rpc_message = &msg,
- .callback_ops = &nfs_write_direct_ops,
- .workqueue = nfsiod_workqueue,
- .flags = RPC_TASK_ASYNC,
- };
+ struct nfs_pageio_descriptor desc;
+ struct nfs_page *req, *tmp;
+ LIST_HEAD(reqs);
+ struct nfs_commit_info cinfo;
+ LIST_HEAD(failed);
+
+ nfs_init_cinfo_from_dreq(&cinfo, dreq);
+ pnfs_recover_commit_reqs(dreq->inode, &reqs, &cinfo);
+ spin_lock(cinfo.lock);
+ nfs_scan_commit_list(&cinfo.mds->list, &reqs, &cinfo, 0);
+ spin_unlock(cinfo.lock);
dreq->count = 0;
get_dreq(dreq);
- list_for_each(p, &dreq->rewrite_list) {
- data = list_entry(p, struct nfs_write_data, pages);
-
- get_dreq(dreq);
-
- /* Use stable writes */
- data->args.stable = NFS_FILE_SYNC;
-
- /*
- * Reset data->res.
- */
- nfs_fattr_init(&data->fattr);
- data->res.count = data->args.count;
- memset(&data->verf, 0, sizeof(data->verf));
-
- /*
- * Reuse data->task; data->args should not have changed
- * since the original request was sent.
- */
- task_setup_data.task = &data->task;
- task_setup_data.callback_data = data;
- msg.rpc_argp = &data->args;
- msg.rpc_resp = &data->res;
- NFS_PROTO(inode)->write_setup(data, &msg);
-
- /*
- * We're called via an RPC callback, so BKL is already held.
- */
- task = rpc_run_task(&task_setup_data);
- if (!IS_ERR(task))
- rpc_put_task(task);
-
- dprintk("NFS: %5u rescheduled direct write call (req %s/%Ld, %u bytes @ offset %Lu)\n",
- data->task.tk_pid,
- inode->i_sb->s_id,
- (long long)NFS_FILEID(inode),
- data->args.count,
- (unsigned long long)data->args.offset);
+ nfs_pageio_init_write(&desc, dreq->inode, FLUSH_STABLE,
+ &nfs_direct_write_completion_ops);
+ desc.pg_dreq = dreq;
+
+ list_for_each_entry_safe(req, tmp, &reqs, wb_list) {
+ if (!nfs_pageio_add_request(&desc, req)) {
+ nfs_list_add_request(req, &failed);
+ spin_lock(cinfo.lock);
+ dreq->flags = 0;
+ dreq->error = -EIO;
+ spin_unlock(cinfo.lock);
+ }
}
+ nfs_pageio_complete(&desc);
- if (put_dreq(dreq))
- nfs_direct_write_complete(dreq, inode);
-}
-
-static void nfs_direct_commit_result(struct rpc_task *task, void *calldata)
-{
- struct nfs_write_data *data = calldata;
+ while (!list_empty(&failed))
+ nfs_unlock_and_release_request(req);
- /* Call the NFS version-specific code */
- NFS_PROTO(data->inode)->commit_done(task, data);
+ if (put_dreq(dreq))
+ nfs_direct_write_complete(dreq, dreq->inode);
}
-static void nfs_direct_commit_release(void *calldata)
+static void nfs_direct_commit_complete(struct nfs_commit_data *data)
{
- struct nfs_write_data *data = calldata;
- struct nfs_direct_req *dreq = (struct nfs_direct_req *) data->req;
+ struct nfs_direct_req *dreq = data->dreq;
+ struct nfs_commit_info cinfo;
+ struct nfs_page *req;
int status = data->task.tk_status;
+ nfs_init_cinfo_from_dreq(&cinfo, dreq);
if (status < 0) {
dprintk("NFS: %5u commit failed with error %d.\n",
- data->task.tk_pid, status);
+ data->task.tk_pid, status);
dreq->flags = NFS_ODIRECT_RESCHED_WRITES;
} else if (memcmp(&dreq->verf, &data->verf, sizeof(data->verf))) {
dprintk("NFS: %5u commit verify failed\n", data->task.tk_pid);
}
dprintk("NFS: %5u commit returned %d\n", data->task.tk_pid, status);
- nfs_direct_write_complete(dreq, data->inode);
- nfs_commit_free(data);
+ while (!list_empty(&data->pages)) {
+ req = nfs_list_entry(data->pages.next);
+ nfs_list_remove_request(req);
+ if (dreq->flags == NFS_ODIRECT_RESCHED_WRITES) {
+ /* Note the rewrite will go through mds */
+ kref_get(&req->wb_kref);
+ nfs_mark_request_commit(req, NULL, &cinfo);
+ }
+ nfs_unlock_and_release_request(req);
+ }
+
+ if (atomic_dec_and_test(&cinfo.mds->rpcs_out))
+ nfs_direct_write_complete(dreq, data->inode);
}
-static const struct rpc_call_ops nfs_commit_direct_ops = {
- .rpc_call_prepare = nfs_write_prepare,
- .rpc_call_done = nfs_direct_commit_result,
- .rpc_release = nfs_direct_commit_release,
+static void nfs_direct_error_cleanup(struct nfs_inode *nfsi)
+{
+ /* There is no lock to clear */
+}
+
+static const struct nfs_commit_completion_ops nfs_direct_commit_completion_ops = {
+ .completion = nfs_direct_commit_complete,
+ .error_cleanup = nfs_direct_error_cleanup,
};
static void nfs_direct_commit_schedule(struct nfs_direct_req *dreq)
{
- struct nfs_write_data *data = dreq->commit_data;
- struct rpc_task *task;
- struct rpc_message msg = {
- .rpc_argp = &data->args,
- .rpc_resp = &data->res,
- .rpc_cred = dreq->ctx->cred,
- };
- struct rpc_task_setup task_setup_data = {
- .task = &data->task,
- .rpc_client = NFS_CLIENT(dreq->inode),
- .rpc_message = &msg,
- .callback_ops = &nfs_commit_direct_ops,
- .callback_data = data,
- .workqueue = nfsiod_workqueue,
- .flags = RPC_TASK_ASYNC,
- };
-
- data->inode = dreq->inode;
- data->cred = msg.rpc_cred;
-
- data->args.fh = NFS_FH(data->inode);
- data->args.offset = 0;
- data->args.count = 0;
- data->args.context = dreq->ctx;
- data->args.lock_context = dreq->l_ctx;
- data->res.count = 0;
- data->res.fattr = &data->fattr;
- data->res.verf = &data->verf;
- nfs_fattr_init(&data->fattr);
-
- NFS_PROTO(data->inode)->commit_setup(data, &msg);
-
- /* Note: task.tk_ops->rpc_release will free dreq->commit_data */
- dreq->commit_data = NULL;
-
- dprintk("NFS: %5u initiated commit call\n", data->task.tk_pid);
-
- task = rpc_run_task(&task_setup_data);
- if (!IS_ERR(task))
- rpc_put_task(task);
+ int res;
+ struct nfs_commit_info cinfo;
+ LIST_HEAD(mds_list);
+
+ nfs_init_cinfo_from_dreq(&cinfo, dreq);
+ nfs_scan_commit(dreq->inode, &mds_list, &cinfo);
+ res = nfs_generic_commit_list(dreq->inode, &mds_list, 0, &cinfo);
+ if (res < 0) /* res == -ENOMEM */
+ nfs_direct_write_reschedule(dreq);
}
-static void nfs_direct_write_complete(struct nfs_direct_req *dreq, struct inode *inode)
+static void nfs_direct_write_schedule_work(struct work_struct *work)
{
+ struct nfs_direct_req *dreq = container_of(work, struct nfs_direct_req, work);
int flags = dreq->flags;
dreq->flags = 0;
nfs_direct_write_reschedule(dreq);
break;
default:
- if (dreq->commit_data != NULL)
- nfs_commit_free(dreq->commit_data);
- nfs_direct_free_writedata(dreq);
- nfs_zap_mapping(inode, inode->i_mapping);
+ nfs_inode_dio_write_done(dreq->inode);
nfs_direct_complete(dreq);
}
}
-static void nfs_alloc_commit_data(struct nfs_direct_req *dreq)
+static void nfs_direct_write_complete(struct nfs_direct_req *dreq, struct inode *inode)
{
- dreq->commit_data = nfs_commitdata_alloc();
- if (dreq->commit_data != NULL)
- dreq->commit_data->req = (struct nfs_page *) dreq;
+ schedule_work(&dreq->work); /* Calls nfs_direct_write_schedule_work */
}
+
#else
-static inline void nfs_alloc_commit_data(struct nfs_direct_req *dreq)
+static void nfs_direct_write_schedule_work(struct work_struct *work)
{
- dreq->commit_data = NULL;
}
static void nfs_direct_write_complete(struct nfs_direct_req *dreq, struct inode *inode)
{
- nfs_direct_free_writedata(dreq);
- nfs_zap_mapping(inode, inode->i_mapping);
+ nfs_inode_dio_write_done(inode);
nfs_direct_complete(dreq);
}
#endif
-static void nfs_direct_write_result(struct rpc_task *task, void *calldata)
-{
- struct nfs_write_data *data = calldata;
-
- nfs_writeback_done(task, data);
-}
-
/*
* NB: Return the value of the first error return code. Subsequent
* errors after the first one are ignored.
*/
-static void nfs_direct_write_release(void *calldata)
-{
- struct nfs_write_data *data = calldata;
- struct nfs_direct_req *dreq = (struct nfs_direct_req *) data->req;
- int status = data->task.tk_status;
-
- spin_lock(&dreq->lock);
-
- if (unlikely(status < 0)) {
- /* An error has occurred, so we should not commit */
- dreq->flags = 0;
- dreq->error = status;
- }
- if (unlikely(dreq->error != 0))
- goto out_unlock;
-
- dreq->count += data->res.count;
-
- if (data->res.verf->committed != NFS_FILE_SYNC) {
- switch (dreq->flags) {
- case 0:
- memcpy(&dreq->verf, &data->verf, sizeof(dreq->verf));
- dreq->flags = NFS_ODIRECT_DO_COMMIT;
- break;
- case NFS_ODIRECT_DO_COMMIT:
- if (memcmp(&dreq->verf, &data->verf, sizeof(dreq->verf))) {
- dprintk("NFS: %5u write verify failed\n", data->task.tk_pid);
- dreq->flags = NFS_ODIRECT_RESCHED_WRITES;
- }
- }
- }
-out_unlock:
- spin_unlock(&dreq->lock);
-
- if (put_dreq(dreq))
- nfs_direct_write_complete(dreq, data->inode);
-}
-
-static const struct rpc_call_ops nfs_write_direct_ops = {
- .rpc_call_prepare = nfs_write_prepare,
- .rpc_call_done = nfs_direct_write_result,
- .rpc_release = nfs_direct_write_release,
-};
-
/*
* For each wsize'd chunk of the user's buffer, dispatch an NFS WRITE
* operation. If nfs_writedata_alloc() or get_user_pages() fails,
* handled automatically by nfs_direct_write_result(). Otherwise, if
* no requests have been sent, just return an error.
*/
-static ssize_t nfs_direct_write_schedule_segment(struct nfs_direct_req *dreq,
+static ssize_t nfs_direct_write_schedule_segment(struct nfs_pageio_descriptor *desc,
const struct iovec *iov,
- loff_t pos, int sync)
+ loff_t pos)
{
+ struct nfs_direct_req *dreq = desc->pg_dreq;
struct nfs_open_context *ctx = dreq->ctx;
struct inode *inode = ctx->dentry->d_inode;
unsigned long user_addr = (unsigned long)iov->iov_base;
size_t count = iov->iov_len;
- struct rpc_task *task;
- struct rpc_message msg = {
- .rpc_cred = ctx->cred,
- };
- struct rpc_task_setup task_setup_data = {
- .rpc_client = NFS_CLIENT(inode),
- .rpc_message = &msg,
- .callback_ops = &nfs_write_direct_ops,
- .workqueue = nfsiod_workqueue,
- .flags = RPC_TASK_ASYNC,
- };
size_t wsize = NFS_SERVER(inode)->wsize;
unsigned int pgbase;
int result;
ssize_t started = 0;
+ struct page **pagevec = NULL;
+ unsigned int npages;
do {
- struct nfs_write_data *data;
size_t bytes;
+ int i;
pgbase = user_addr & ~PAGE_MASK;
- bytes = min(wsize,count);
+ bytes = min(max_t(size_t, wsize, PAGE_SIZE), count);
result = -ENOMEM;
- data = nfs_writedata_alloc(nfs_page_array_len(pgbase, bytes));
- if (unlikely(!data))
+ npages = nfs_page_array_len(pgbase, bytes);
+ if (!pagevec)
+ pagevec = kmalloc(npages * sizeof(struct page *), GFP_KERNEL);
+ if (!pagevec)
break;
down_read(¤t->mm->mmap_sem);
result = get_user_pages(current, current->mm, user_addr,
- data->npages, 0, 0, data->pagevec, NULL);
+ npages, 0, 0, pagevec, NULL);
up_read(¤t->mm->mmap_sem);
- if (result < 0) {
- nfs_writedata_free(data);
+ if (result < 0)
break;
- }
- if ((unsigned)result < data->npages) {
+
+ if ((unsigned)result < npages) {
bytes = result * PAGE_SIZE;
if (bytes <= pgbase) {
- nfs_direct_release_pages(data->pagevec, result);
- nfs_writedata_free(data);
+ nfs_direct_release_pages(pagevec, result);
break;
}
bytes -= pgbase;
- data->npages = result;
+ npages = result;
}
- get_dreq(dreq);
-
- list_move_tail(&data->pages, &dreq->rewrite_list);
-
- data->req = (struct nfs_page *) dreq;
- data->inode = inode;
- data->cred = msg.rpc_cred;
- data->args.fh = NFS_FH(inode);
- data->args.context = ctx;
- data->args.lock_context = dreq->l_ctx;
- data->args.offset = pos;
- data->args.pgbase = pgbase;
- data->args.pages = data->pagevec;
- data->args.count = bytes;
- data->args.stable = sync;
- data->res.fattr = &data->fattr;
- data->res.count = bytes;
- data->res.verf = &data->verf;
- nfs_fattr_init(&data->fattr);
-
- task_setup_data.task = &data->task;
- task_setup_data.callback_data = data;
- msg.rpc_argp = &data->args;
- msg.rpc_resp = &data->res;
- NFS_PROTO(inode)->write_setup(data, &msg);
-
- task = rpc_run_task(&task_setup_data);
- if (IS_ERR(task))
- break;
- rpc_put_task(task);
-
- dprintk("NFS: %5u initiated direct write call "
- "(req %s/%Ld, %zu bytes @ offset %Lu)\n",
- data->task.tk_pid,
- inode->i_sb->s_id,
- (long long)NFS_FILEID(inode),
- bytes,
- (unsigned long long)data->args.offset);
+ for (i = 0; i < npages; i++) {
+ struct nfs_page *req;
+ unsigned int req_len = min_t(size_t, bytes, PAGE_SIZE - pgbase);
- started += bytes;
- user_addr += bytes;
- pos += bytes;
-
- /* FIXME: Remove this useless math from the final patch */
- pgbase += bytes;
- pgbase &= ~PAGE_MASK;
- BUG_ON(pgbase != (user_addr & ~PAGE_MASK));
+ req = nfs_create_request(dreq->ctx, dreq->inode,
+ pagevec[i],
+ pgbase, req_len);
+ if (IS_ERR(req)) {
+ result = PTR_ERR(req);
+ break;
+ }
+ nfs_lock_request(req);
+ req->wb_index = pos >> PAGE_SHIFT;
+ req->wb_offset = pos & ~PAGE_MASK;
+ if (!nfs_pageio_add_request(desc, req)) {
+ result = desc->pg_error;
+ nfs_unlock_and_release_request(req);
+ break;
+ }
+ pgbase = 0;
+ bytes -= req_len;
+ started += req_len;
+ user_addr += req_len;
+ pos += req_len;
+ count -= req_len;
+ }
+ /* The nfs_page now hold references to these pages */
+ nfs_direct_release_pages(pagevec, npages);
+ } while (count != 0 && result >= 0);
- count -= bytes;
- } while (count != 0);
+ kfree(pagevec);
if (started)
return started;
return result < 0 ? (ssize_t) result : -EFAULT;
}
+static void nfs_direct_write_completion(struct nfs_pgio_header *hdr)
+{
+ struct nfs_direct_req *dreq = hdr->dreq;
+ struct nfs_commit_info cinfo;
+ int bit = -1;
+ struct nfs_page *req = nfs_list_entry(hdr->pages.next);
+
+ if (test_bit(NFS_IOHDR_REDO, &hdr->flags))
+ goto out_put;
+
+ nfs_init_cinfo_from_dreq(&cinfo, dreq);
+
+ spin_lock(&dreq->lock);
+
+ if (test_bit(NFS_IOHDR_ERROR, &hdr->flags)) {
+ dreq->flags = 0;
+ dreq->error = hdr->error;
+ }
+ if (dreq->error != 0)
+ bit = NFS_IOHDR_ERROR;
+ else {
+ dreq->count += hdr->good_bytes;
+ if (test_bit(NFS_IOHDR_NEED_RESCHED, &hdr->flags)) {
+ dreq->flags = NFS_ODIRECT_RESCHED_WRITES;
+ bit = NFS_IOHDR_NEED_RESCHED;
+ } else if (test_bit(NFS_IOHDR_NEED_COMMIT, &hdr->flags)) {
+ if (dreq->flags == NFS_ODIRECT_RESCHED_WRITES)
+ bit = NFS_IOHDR_NEED_RESCHED;
+ else if (dreq->flags == 0) {
+ memcpy(&dreq->verf, &req->wb_verf,
+ sizeof(dreq->verf));
+ bit = NFS_IOHDR_NEED_COMMIT;
+ dreq->flags = NFS_ODIRECT_DO_COMMIT;
+ } else if (dreq->flags == NFS_ODIRECT_DO_COMMIT) {
+ if (memcmp(&dreq->verf, &req->wb_verf, sizeof(dreq->verf))) {
+ dreq->flags = NFS_ODIRECT_RESCHED_WRITES;
+ bit = NFS_IOHDR_NEED_RESCHED;
+ } else
+ bit = NFS_IOHDR_NEED_COMMIT;
+ }
+ }
+ }
+ spin_unlock(&dreq->lock);
+
+ while (!list_empty(&hdr->pages)) {
+ req = nfs_list_entry(hdr->pages.next);
+ nfs_list_remove_request(req);
+ switch (bit) {
+ case NFS_IOHDR_NEED_RESCHED:
+ case NFS_IOHDR_NEED_COMMIT:
+ kref_get(&req->wb_kref);
+ nfs_mark_request_commit(req, hdr->lseg, &cinfo);
+ }
+ nfs_unlock_and_release_request(req);
+ }
+
+out_put:
+ if (put_dreq(dreq))
+ nfs_direct_write_complete(dreq, hdr->inode);
+ hdr->release(hdr);
+}
+
+static void nfs_write_sync_pgio_error(struct list_head *head)
+{
+ struct nfs_page *req;
+
+ while (!list_empty(head)) {
+ req = nfs_list_entry(head->next);
+ nfs_list_remove_request(req);
+ nfs_unlock_and_release_request(req);
+ }
+}
+
+static const struct nfs_pgio_completion_ops nfs_direct_write_completion_ops = {
+ .error_cleanup = nfs_write_sync_pgio_error,
+ .init_hdr = nfs_direct_pgio_init,
+ .completion = nfs_direct_write_completion,
+};
+
static ssize_t nfs_direct_write_schedule_iovec(struct nfs_direct_req *dreq,
const struct iovec *iov,
unsigned long nr_segs,
- loff_t pos, int sync)
+ loff_t pos)
{
+ struct nfs_pageio_descriptor desc;
+ struct inode *inode = dreq->inode;
ssize_t result = 0;
size_t requested_bytes = 0;
unsigned long seg;
+ nfs_pageio_init_write(&desc, inode, FLUSH_COND_STABLE,
+ &nfs_direct_write_completion_ops);
+ desc.pg_dreq = dreq;
get_dreq(dreq);
+ atomic_inc(&inode->i_dio_count);
for (seg = 0; seg < nr_segs; seg++) {
const struct iovec *vec = &iov[seg];
- result = nfs_direct_write_schedule_segment(dreq, vec,
- pos, sync);
+ result = nfs_direct_write_schedule_segment(&desc, vec, pos);
if (result < 0)
break;
requested_bytes += result;
break;
pos += vec->iov_len;
}
+ nfs_pageio_complete(&desc);
+ NFS_I(dreq->inode)->write_io += desc.pg_bytes_written;
/*
* If no bytes were started, return the error, and let the
* generic layer handle the completion.
*/
if (requested_bytes == 0) {
+ inode_dio_done(inode);
nfs_direct_req_release(dreq);
return result < 0 ? result : -EIO;
}
ssize_t result = -ENOMEM;
struct inode *inode = iocb->ki_filp->f_mapping->host;
struct nfs_direct_req *dreq;
- size_t wsize = NFS_SERVER(inode)->wsize;
- int sync = NFS_UNSTABLE;
dreq = nfs_direct_req_alloc();
if (!dreq)
goto out;
- nfs_alloc_commit_data(dreq);
-
- if (dreq->commit_data == NULL || count <= wsize)
- sync = NFS_FILE_SYNC;
dreq->inode = inode;
dreq->ctx = get_nfs_open_context(nfs_file_open_context(iocb->ki_filp));
if (!is_sync_kiocb(iocb))
dreq->iocb = iocb;
- result = nfs_direct_write_schedule_iovec(dreq, iov, nr_segs, pos, sync);
+ result = nfs_direct_write_schedule_iovec(dreq, iov, nr_segs, pos);
if (!result)
result = nfs_direct_wait(dreq);
out_release:
task_io_account_write(count);
retval = nfs_direct_write(iocb, iov, nr_segs, pos, count);
+ if (retval > 0) {
+ struct inode *inode = mapping->host;
- if (retval > 0)
iocb->ki_pos = pos + retval;
-
+ spin_lock(&inode->i_lock);
+ if (i_size_read(inode) < iocb->ki_pos)
+ i_size_write(inode, iocb->ki_pos);
+ spin_unlock(&inode->i_lock);
+ }
out:
return retval;
}
if ((file->f_mode & FMODE_WRITE) == 0)
return 0;
+ /*
+ * If we're holding a write delegation, then just start the i/o
+ * but don't wait for completion (or send a commit).
+ */
+ if (nfs_have_delegation(inode, FMODE_WRITE))
+ return filemap_fdatawrite(file->f_mapping);
+
/* Flush writes to the server and return any errors */
return vfs_fsync(file, 0);
}
if (status < 0)
return status;
+ NFS_I(mapping->host)->write_io += copied;
return copied;
}
static int
nfs4_file_open(struct inode *inode, struct file *filp)
{
+ struct nfs_open_context *ctx;
+ struct dentry *dentry = filp->f_path.dentry;
+ struct dentry *parent = NULL;
+ struct inode *dir;
+ unsigned openflags = filp->f_flags;
+ struct iattr attr;
+ int err;
+
+ BUG_ON(inode != dentry->d_inode);
/*
- * NFSv4 opens are handled in d_lookup and d_revalidate. If we get to
- * this point, then something is very wrong
+ * If no cached dentry exists or if it's negative, NFSv4 handled the
+ * opens in ->lookup() or ->create().
+ *
+ * We only get this far for a cached positive dentry. We skipped
+ * revalidation, so handle it here by dropping the dentry and returning
+ * -EOPENSTALE. The VFS will retry the lookup/create/open.
*/
- dprintk("NFS: %s called! inode=%p filp=%p\n", __func__, inode, filp);
- return -ENOTDIR;
+
+ dprintk("NFS: open file(%s/%s)\n",
+ dentry->d_parent->d_name.name,
+ dentry->d_name.name);
+
+ if ((openflags & O_ACCMODE) == 3)
+ openflags--;
+
+ /* We can't create new files here */
+ openflags &= ~(O_CREAT|O_EXCL);
+
+ parent = dget_parent(dentry);
+ dir = parent->d_inode;
+
+ ctx = alloc_nfs_open_context(filp->f_path.dentry, filp->f_mode);
+ err = PTR_ERR(ctx);
+ if (IS_ERR(ctx))
+ goto out;
+
+ attr.ia_valid = ATTR_OPEN;
+ if (openflags & O_TRUNC) {
+ attr.ia_valid |= ATTR_SIZE;
+ attr.ia_size = 0;
+ nfs_wb_all(inode);
+ }
+
+ inode = NFS_PROTO(dir)->open_context(dir, ctx, openflags, &attr);
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ switch (err) {
+ case -EPERM:
+ case -EACCES:
+ case -EDQUOT:
+ case -ENOSPC:
+ case -EROFS:
+ goto out_put_ctx;
+ default:
+ goto out_drop;
+ }
+ }
+ iput(inode);
+ if (inode != dentry->d_inode)
+ goto out_drop;
+
+ nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
+ nfs_file_set_open_context(filp, ctx);
+ err = 0;
+
+out_put_ctx:
+ put_nfs_open_context(ctx);
+out:
+ dput(parent);
+ return err;
+
+out_drop:
+ d_drop(dentry);
+ err = -EOPENSTALE;
+ goto out_put_ctx;
}
const struct file_operations nfs4_file_operations = {
* either by the 'fsc=xxx' option to mount, or by inheriting it from the parent
* superblock across an automount point of some nature.
*/
-void nfs_fscache_get_super_cookie(struct super_block *sb, const char *uniq,
- struct nfs_clone_mount *mntdata)
+void nfs_fscache_get_super_cookie(struct super_block *sb, const char *uniq, int ulen)
{
struct nfs_fscache_key *key, *xkey;
struct nfs_server *nfss = NFS_SB(sb);
struct rb_node **p, *parent;
- int diff, ulen;
-
- if (uniq) {
- ulen = strlen(uniq);
- } else if (mntdata) {
- struct nfs_server *mnt_s = NFS_SB(mntdata->sb);
- if (mnt_s->fscache_key) {
- uniq = mnt_s->fscache_key->key.uniquifier;
- ulen = mnt_s->fscache_key->key.uniq_len;
- }
- }
+ int diff;
if (!uniq) {
uniq = "";
extern void nfs_fscache_get_client_cookie(struct nfs_client *);
extern void nfs_fscache_release_client_cookie(struct nfs_client *);
-extern void nfs_fscache_get_super_cookie(struct super_block *,
- const char *,
- struct nfs_clone_mount *);
+extern void nfs_fscache_get_super_cookie(struct super_block *, const char *, int);
extern void nfs_fscache_release_super_cookie(struct super_block *);
extern void nfs_fscache_init_inode_cookie(struct inode *);
static inline void nfs_fscache_get_client_cookie(struct nfs_client *clp) {}
static inline void nfs_fscache_release_client_cookie(struct nfs_client *clp) {}
-static inline void nfs_fscache_get_super_cookie(
- struct super_block *sb,
- const char *uniq,
- struct nfs_clone_mount *mntdata)
-{
-}
static inline void nfs_fscache_release_super_cookie(struct super_block *sb) {}
static inline void nfs_fscache_init_inode_cookie(struct inode *inode) {}
goto out;
/* Start by getting the root filehandle from the server */
- ret = server->nfs_client->rpc_ops->getroot(server, mntfh, &fsinfo);
+ ret = nfs4_proc_get_rootfh(server, mntfh, &fsinfo);
if (ret < 0) {
dprintk("nfs4_get_rootfh: getroot error = %d\n", -ret);
goto out;
return ret;
}
-/*
- * get an NFS4 root dentry from the root filehandle
- */
-struct dentry *nfs4_get_root(struct super_block *sb, struct nfs_fh *mntfh,
- const char *devname)
-{
- struct nfs_server *server = NFS_SB(sb);
- struct nfs_fattr *fattr = NULL;
- struct dentry *ret;
- struct inode *inode;
- void *name = kstrdup(devname, GFP_KERNEL);
- int error;
-
- dprintk("--> nfs4_get_root()\n");
-
- if (!name)
- return ERR_PTR(-ENOMEM);
-
- /* get the info about the server and filesystem */
- error = nfs4_server_capabilities(server, mntfh);
- if (error < 0) {
- dprintk("nfs_get_root: getcaps error = %d\n",
- -error);
- kfree(name);
- return ERR_PTR(error);
- }
-
- fattr = nfs_alloc_fattr();
- if (fattr == NULL) {
- kfree(name);
- return ERR_PTR(-ENOMEM);
- }
-
- /* get the actual root for this mount */
- error = server->nfs_client->rpc_ops->getattr(server, mntfh, fattr);
- if (error < 0) {
- dprintk("nfs_get_root: getattr error = %d\n", -error);
- ret = ERR_PTR(error);
- goto out;
- }
-
- if (fattr->valid & NFS_ATTR_FATTR_FSID &&
- !nfs_fsid_equal(&server->fsid, &fattr->fsid))
- memcpy(&server->fsid, &fattr->fsid, sizeof(server->fsid));
-
- inode = nfs_fhget(sb, mntfh, fattr);
- if (IS_ERR(inode)) {
- dprintk("nfs_get_root: get root inode failed\n");
- ret = ERR_CAST(inode);
- goto out;
- }
-
- error = nfs_superblock_set_dummy_root(sb, inode);
- if (error != 0) {
- ret = ERR_PTR(error);
- goto out;
- }
-
- /* root dentries normally start off anonymous and get spliced in later
- * if the dentry tree reaches them; however if the dentry already
- * exists, we'll pick it up at this point and use it as the root
- */
- ret = d_obtain_alias(inode);
- if (IS_ERR(ret)) {
- dprintk("nfs_get_root: get root dentry failed\n");
- goto out;
- }
-
- security_d_instantiate(ret, inode);
- spin_lock(&ret->d_lock);
- if (IS_ROOT(ret) && !(ret->d_flags & DCACHE_NFSFS_RENAMED)) {
- ret->d_fsdata = name;
- name = NULL;
- }
- spin_unlock(&ret->d_lock);
-out:
- if (name)
- kfree(name);
- nfs_free_fattr(fattr);
- dprintk("<-- nfs4_get_root()\n");
- return ret;
-}
-
#endif /* CONFIG_NFS_V4 */
static void nfs_idmap_unregister(struct nfs_client *clp,
struct rpc_pipe *pipe)
{
- struct net *net = clp->net;
+ struct net *net = clp->cl_net;
struct super_block *pipefs_sb;
pipefs_sb = rpc_get_sb_net(net);
struct idmap *idmap,
struct rpc_pipe *pipe)
{
- struct net *net = clp->net;
+ struct net *net = clp->cl_net;
struct super_block *pipefs_sb;
int err = 0;
struct nfs_net *nn = net_generic(net, nfs_net_id);
struct dentry *cl_dentry;
struct nfs_client *clp;
+ int err;
+restart:
spin_lock(&nn->nfs_client_lock);
list_for_each_entry(clp, &nn->nfs_client_list, cl_share_link) {
+ /* Wait for initialisation to finish */
+ if (clp->cl_cons_state == NFS_CS_INITING) {
+ atomic_inc(&clp->cl_count);
+ spin_unlock(&nn->nfs_client_lock);
+ err = nfs_wait_client_init_complete(clp);
+ nfs_put_client(clp);
+ if (err)
+ return NULL;
+ goto restart;
+ }
+ /* Skip nfs_clients that failed to initialise */
+ if (clp->cl_cons_state < 0)
+ continue;
+ smp_rmb();
if (clp->rpc_ops != &nfs_v4_clientops)
continue;
cl_dentry = clp->cl_idmap->idmap_pipe->dentry;
struct idmap_msg *im;
struct idmap *idmap = (struct idmap *)aux;
struct key *key = cons->key;
- int ret;
+ int ret = -ENOMEM;
/* msg and im are freed in idmap_pipe_destroy_msg */
msg = kmalloc(sizeof(*msg), GFP_KERNEL);
- if (IS_ERR(msg)) {
- ret = PTR_ERR(msg);
+ if (!msg)
goto out0;
- }
im = kmalloc(sizeof(*im), GFP_KERNEL);
- if (IS_ERR(im)) {
- ret = PTR_ERR(im);
+ if (!im)
goto out1;
- }
ret = nfs_idmap_prepare_message(key->description, im, msg);
if (ret < 0)
inode->i_mode = fattr->mode;
if ((fattr->valid & NFS_ATTR_FATTR_MODE) == 0
&& nfs_server_capable(inode, NFS_CAP_MODE))
- nfsi->cache_validity |= NFS_INO_INVALID_ATTR
- | NFS_INO_INVALID_ACCESS
- | NFS_INO_INVALID_ACL;
+ nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
/* Why so? Because we want revalidate for devices/FIFOs, and
* that's precisely what we have in nfs_file_inode_operations.
*/
inode->i_op = NFS_SB(sb)->nfs_client->rpc_ops->dir_inode_ops;
inode->i_fop = &nfs_dir_operations;
inode->i_data.a_ops = &nfs_dir_aops;
- if (nfs_server_capable(inode, NFS_CAP_READDIRPLUS))
- set_bit(NFS_INO_ADVISE_RDPLUS, &NFS_I(inode)->flags);
/* Deal with crossing mountpoints */
if (fattr->valid & NFS_ATTR_FATTR_MOUNTPOINT ||
fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL) {
inode->i_gid = -2;
inode->i_blocks = 0;
memset(nfsi->cookieverf, 0, sizeof(nfsi->cookieverf));
+ nfsi->write_io = 0;
+ nfsi->read_io = 0;
nfsi->read_cache_jiffies = fattr->time_start;
nfsi->attr_gencount = fattr->gencount;
if (fattr->valid & NFS_ATTR_FATTR_MTIME)
inode->i_mtime = fattr->mtime;
else if (nfs_server_capable(inode, NFS_CAP_MTIME))
- nfsi->cache_validity |= NFS_INO_INVALID_ATTR
- | NFS_INO_INVALID_DATA;
+ nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
if (fattr->valid & NFS_ATTR_FATTR_CTIME)
inode->i_ctime = fattr->ctime;
else if (nfs_server_capable(inode, NFS_CAP_CTIME))
- nfsi->cache_validity |= NFS_INO_INVALID_ATTR
- | NFS_INO_INVALID_ACCESS
- | NFS_INO_INVALID_ACL;
+ nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
if (fattr->valid & NFS_ATTR_FATTR_CHANGE)
inode->i_version = fattr->change_attr;
else if (nfs_server_capable(inode, NFS_CAP_CHANGE_ATTR))
- nfsi->cache_validity |= NFS_INO_INVALID_ATTR
- | NFS_INO_INVALID_DATA;
+ nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
if (fattr->valid & NFS_ATTR_FATTR_SIZE)
inode->i_size = nfs_size_to_loff_t(fattr->size);
else
nfsi->cache_validity |= NFS_INO_INVALID_ATTR
- | NFS_INO_INVALID_DATA
| NFS_INO_REVAL_PAGECACHE;
if (fattr->valid & NFS_ATTR_FATTR_NLINK)
set_nlink(inode, fattr->nlink);
if (fattr->valid & NFS_ATTR_FATTR_OWNER)
inode->i_uid = fattr->uid;
else if (nfs_server_capable(inode, NFS_CAP_OWNER))
- nfsi->cache_validity |= NFS_INO_INVALID_ATTR
- | NFS_INO_INVALID_ACCESS
- | NFS_INO_INVALID_ACL;
+ nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
if (fattr->valid & NFS_ATTR_FATTR_GROUP)
inode->i_gid = fattr->gid;
else if (nfs_server_capable(inode, NFS_CAP_OWNER_GROUP))
- nfsi->cache_validity |= NFS_INO_INVALID_ATTR
- | NFS_INO_INVALID_ACCESS
- | NFS_INO_INVALID_ACL;
+ nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
if (fattr->valid & NFS_ATTR_FATTR_BLOCKS_USED)
inode->i_blocks = fattr->du.nfs2.blocks;
if (fattr->valid & NFS_ATTR_FATTR_SPACE_USED) {
return 0;
/* Write all dirty data */
- if (S_ISREG(inode->i_mode))
+ if (S_ISREG(inode->i_mode)) {
+ nfs_inode_dio_wait(inode);
nfs_wb_all(inode);
+ }
fattr = nfs_alloc_fattr();
if (fattr == NULL)
/* Flush out writes to the server in order to update c/mtime. */
if (S_ISREG(inode->i_mode)) {
+ nfs_inode_dio_wait(inode);
err = filemap_write_and_wait(inode->i_mapping);
if (err)
goto out;
nfs_init_lock_context(&ctx->lock_context);
ctx->lock_context.open_context = ctx;
INIT_LIST_HEAD(&ctx->list);
+ ctx->mdsthreshold = NULL;
return ctx;
}
put_rpccred(ctx->cred);
dput(ctx->dentry);
nfs_sb_deactive(sb);
+ kfree(ctx->mdsthreshold);
kfree(ctx);
}
return 0;
}
+static bool nfs_mapping_need_revalidate_inode(struct inode *inode)
+{
+ if (nfs_have_delegated_attributes(inode))
+ return false;
+ return (NFS_I(inode)->cache_validity & NFS_INO_REVAL_PAGECACHE)
+ || nfs_attribute_timeout(inode)
+ || NFS_STALE(inode);
+}
+
/**
* nfs_revalidate_mapping - Revalidate the pagecache
* @inode - pointer to host inode
struct nfs_inode *nfsi = NFS_I(inode);
int ret = 0;
- if ((nfsi->cache_validity & NFS_INO_REVAL_PAGECACHE)
- || nfs_attribute_cache_expired(inode)
- || NFS_STALE(inode)) {
+ if (nfs_mapping_need_revalidate_inode(inode)) {
ret = __nfs_revalidate_inode(NFS_SERVER(inode), inode);
if (ret < 0)
goto out;
unsigned long invalid = 0;
+ if (nfs_have_delegated_attributes(inode))
+ return 0;
/* Has the inode gone and changed behind our back? */
if ((fattr->valid & NFS_ATTR_FATTR_FILEID) && nfsi->fileid != fattr->fileid)
return -EIO;
/* Verify a few of the more important attributes */
if ((fattr->valid & NFS_ATTR_FATTR_MTIME) && !timespec_equal(&inode->i_mtime, &fattr->mtime))
- invalid |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE;
+ invalid |= NFS_INO_INVALID_ATTR;
if (fattr->valid & NFS_ATTR_FATTR_SIZE) {
cur_size = i_size_read(inode);
nfs_display_fhandle_hash(NFS_FH(inode)),
atomic_read(&inode->i_count), fattr->valid);
- if ((fattr->valid & NFS_ATTR_FATTR_FILEID) && nfsi->fileid != fattr->fileid)
- goto out_fileid;
+ if ((fattr->valid & NFS_ATTR_FATTR_FILEID) && nfsi->fileid != fattr->fileid) {
+ printk(KERN_ERR "NFS: server %s error: fileid changed\n"
+ "fsid %s: expected fileid 0x%Lx, got 0x%Lx\n",
+ NFS_SERVER(inode)->nfs_client->cl_hostname,
+ inode->i_sb->s_id, (long long)nfsi->fileid,
+ (long long)fattr->fileid);
+ goto out_err;
+ }
/*
* Make sure the inode's type hasn't changed.
*/
- if ((fattr->valid & NFS_ATTR_FATTR_TYPE) && (inode->i_mode & S_IFMT) != (fattr->mode & S_IFMT))
- goto out_changed;
+ if ((fattr->valid & NFS_ATTR_FATTR_TYPE) && (inode->i_mode & S_IFMT) != (fattr->mode & S_IFMT)) {
+ /*
+ * Big trouble! The inode has become a different object.
+ */
+ printk(KERN_DEBUG "NFS: %s: inode %ld mode changed, %07o to %07o\n",
+ __func__, inode->i_ino, inode->i_mode, fattr->mode);
+ goto out_err;
+ }
server = NFS_SERVER(inode);
/* Update the fsid? */
if (inode->i_version != fattr->change_attr) {
dprintk("NFS: change_attr change on server for file %s/%ld\n",
inode->i_sb->s_id, inode->i_ino);
- invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
+ invalid |= NFS_INO_INVALID_ATTR
+ | NFS_INO_INVALID_DATA
+ | NFS_INO_INVALID_ACCESS
+ | NFS_INO_INVALID_ACL
+ | NFS_INO_REVAL_PAGECACHE;
if (S_ISDIR(inode->i_mode))
nfs_force_lookup_revalidate(inode);
inode->i_version = fattr->change_attr;
invalid |= save_cache_validity;
if (fattr->valid & NFS_ATTR_FATTR_MTIME) {
- /* NFSv2/v3: Check if the mtime agrees */
- if (!timespec_equal(&inode->i_mtime, &fattr->mtime)) {
- dprintk("NFS: mtime change on server for file %s/%ld\n",
- inode->i_sb->s_id, inode->i_ino);
- invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
- if (S_ISDIR(inode->i_mode))
- nfs_force_lookup_revalidate(inode);
- memcpy(&inode->i_mtime, &fattr->mtime, sizeof(inode->i_mtime));
- }
+ memcpy(&inode->i_mtime, &fattr->mtime, sizeof(inode->i_mtime));
} else if (server->caps & NFS_CAP_MTIME)
invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
- | NFS_INO_INVALID_DATA
- | NFS_INO_REVAL_PAGECACHE
| NFS_INO_REVAL_FORCED);
if (fattr->valid & NFS_ATTR_FATTR_CTIME) {
- /* If ctime has changed we should definitely clear access+acl caches */
- if (!timespec_equal(&inode->i_ctime, &fattr->ctime)) {
- invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
- /* and probably clear data for a directory too as utimes can cause
- * havoc with our cache.
- */
- if (S_ISDIR(inode->i_mode)) {
- invalid |= NFS_INO_INVALID_DATA;
- nfs_force_lookup_revalidate(inode);
- }
- memcpy(&inode->i_ctime, &fattr->ctime, sizeof(inode->i_ctime));
- }
+ memcpy(&inode->i_ctime, &fattr->ctime, sizeof(inode->i_ctime));
} else if (server->caps & NFS_CAP_CTIME)
invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
- | NFS_INO_INVALID_ACCESS
- | NFS_INO_INVALID_ACL
| NFS_INO_REVAL_FORCED);
/* Check if our cached file size is stale */
nfsi->cache_validity |= invalid;
return 0;
- out_changed:
- /*
- * Big trouble! The inode has become a different object.
- */
- printk(KERN_DEBUG "NFS: %s: inode %ld mode changed, %07o to %07o\n",
- __func__, inode->i_ino, inode->i_mode, fattr->mode);
out_err:
/*
* No need to worry about unhashing the dentry, as the
*/
nfs_invalidate_inode(inode);
return -ESTALE;
-
- out_fileid:
- printk(KERN_ERR "NFS: server %s error: fileid changed\n"
- "fsid %s: expected fileid 0x%Lx, got 0x%Lx\n",
- NFS_SERVER(inode)->nfs_client->cl_hostname, inode->i_sb->s_id,
- (long long)nfsi->fileid, (long long)fattr->fileid);
- goto out_err;
}
nfsi->delegation_state = 0;
init_rwsem(&nfsi->rwsem);
nfsi->layout = NULL;
- atomic_set(&nfsi->commits_outstanding, 0);
+ atomic_set(&nfsi->commit_info.rpcs_out, 0);
#endif
}
INIT_LIST_HEAD(&nfsi->open_files);
INIT_LIST_HEAD(&nfsi->access_cache_entry_lru);
INIT_LIST_HEAD(&nfsi->access_cache_inode_lru);
- INIT_LIST_HEAD(&nfsi->commit_list);
+ INIT_LIST_HEAD(&nfsi->commit_info.list);
nfsi->npages = 0;
- nfsi->ncommit = 0;
+ nfsi->commit_info.ncommit = 0;
atomic_set(&nfsi->silly_count, 1);
INIT_HLIST_HEAD(&nfsi->silly_list);
init_waitqueue_head(&nfsi->waitqueue);
unsigned int version;
unsigned int minorversion;
char *fscache_uniq;
+ bool need_mount;
struct {
struct sockaddr_storage address;
struct nfs_fh *,
struct nfs_fattr *,
rpc_authflavor_t);
+extern int nfs_wait_client_init_complete(const struct nfs_client *clp);
extern void nfs_mark_client_ready(struct nfs_client *clp, int state);
-extern int nfs4_check_client_ready(struct nfs_client *clp);
extern struct nfs_client *nfs4_set_ds_client(struct nfs_client* mds_clp,
const struct sockaddr *ds_addr,
- int ds_addrlen, int ds_proto);
+ int ds_addrlen, int ds_proto,
+ unsigned int ds_timeo,
+ unsigned int ds_retrans);
#ifdef CONFIG_PROC_FS
extern int __init nfs_fs_proc_init(void);
extern void nfs_fs_proc_exit(void);
}
#endif
-/* nfs4namespace.c */
-#ifdef CONFIG_NFS_V4
-extern struct vfsmount *nfs_do_refmount(struct rpc_clnt *client, struct dentry *dentry);
-#else
-static inline
-struct vfsmount *nfs_do_refmount(struct rpc_clnt *client, struct dentry *dentry)
-{
- return ERR_PTR(-ENOENT);
-}
-#endif
-
/* callback_xdr.c */
extern struct svc_version nfs4_callback_version1;
extern struct svc_version nfs4_callback_version4;
+struct nfs_pageio_descriptor;
/* pagelist.c */
extern int __init nfs_init_nfspagecache(void);
extern void nfs_destroy_nfspagecache(void);
extern int __init nfs_init_directcache(void);
extern void nfs_destroy_directcache(void);
+extern bool nfs_pgarray_set(struct nfs_page_array *p, unsigned int pagecount);
+extern void nfs_pgheader_init(struct nfs_pageio_descriptor *desc,
+ struct nfs_pgio_header *hdr,
+ void (*release)(struct nfs_pgio_header *hdr));
+void nfs_set_pgio_error(struct nfs_pgio_header *hdr, int error, loff_t pos);
/* nfs2xdr.c */
-extern int nfs_stat_to_errno(enum nfs_stat);
extern struct rpc_procinfo nfs_procedures[];
extern int nfs2_decode_dirent(struct xdr_stream *,
struct nfs_entry *, int);
extern struct rpc_procinfo nfs4_procedures[];
#endif
-extern int nfs4_init_ds_session(struct nfs_client *clp);
+extern int nfs4_init_ds_session(struct nfs_client *, unsigned long);
/* proc.c */
void nfs_close_context(struct nfs_open_context *ctx, int is_sync);
-extern int nfs_init_client(struct nfs_client *clp,
+extern struct nfs_client *nfs_init_client(struct nfs_client *clp,
const struct rpc_timeout *timeparms,
- const char *ip_addr, rpc_authflavor_t authflavour,
- int noresvport);
+ const char *ip_addr, rpc_authflavor_t authflavour);
/* dir.c */
extern int nfs_access_cache_shrinker(struct shrinker *shrink,
extern char *nfs_path(char **p, struct dentry *dentry,
char *buffer, ssize_t buflen);
extern struct vfsmount *nfs_d_automount(struct path *path);
-#ifdef CONFIG_NFS_V4
-rpc_authflavor_t nfs_find_best_sec(struct nfs4_secinfo_flavors *);
-#endif
+struct vfsmount *nfs_submount(struct nfs_server *, struct dentry *,
+ struct nfs_fh *, struct nfs_fattr *);
+struct vfsmount *nfs_do_submount(struct dentry *, struct nfs_fh *,
+ struct nfs_fattr *, rpc_authflavor_t);
/* getroot.c */
extern struct dentry *nfs_get_root(struct super_block *, struct nfs_fh *,
extern int nfs4_get_rootfh(struct nfs_server *server, struct nfs_fh *mntfh);
#endif
-struct nfs_pageio_descriptor;
+struct nfs_pgio_completion_ops;
/* read.c */
-extern int nfs_initiate_read(struct nfs_read_data *data, struct rpc_clnt *clnt,
- const struct rpc_call_ops *call_ops);
+extern struct nfs_read_header *nfs_readhdr_alloc(void);
+extern void nfs_readhdr_free(struct nfs_pgio_header *hdr);
+extern void nfs_pageio_init_read(struct nfs_pageio_descriptor *pgio,
+ struct inode *inode,
+ const struct nfs_pgio_completion_ops *compl_ops);
+extern int nfs_initiate_read(struct rpc_clnt *clnt,
+ struct nfs_read_data *data,
+ const struct rpc_call_ops *call_ops, int flags);
extern void nfs_read_prepare(struct rpc_task *task, void *calldata);
extern int nfs_generic_pagein(struct nfs_pageio_descriptor *desc,
- struct list_head *head);
-
+ struct nfs_pgio_header *hdr);
extern void nfs_pageio_init_read_mds(struct nfs_pageio_descriptor *pgio,
- struct inode *inode);
+ struct inode *inode,
+ const struct nfs_pgio_completion_ops *compl_ops);
extern void nfs_pageio_reset_read_mds(struct nfs_pageio_descriptor *pgio);
extern void nfs_readdata_release(struct nfs_read_data *rdata);
/* write.c */
+extern void nfs_pageio_init_write(struct nfs_pageio_descriptor *pgio,
+ struct inode *inode, int ioflags,
+ const struct nfs_pgio_completion_ops *compl_ops);
+extern struct nfs_write_header *nfs_writehdr_alloc(void);
+extern void nfs_writehdr_free(struct nfs_pgio_header *hdr);
extern int nfs_generic_flush(struct nfs_pageio_descriptor *desc,
- struct list_head *head);
+ struct nfs_pgio_header *hdr);
extern void nfs_pageio_init_write_mds(struct nfs_pageio_descriptor *pgio,
- struct inode *inode, int ioflags);
+ struct inode *inode, int ioflags,
+ const struct nfs_pgio_completion_ops *compl_ops);
extern void nfs_pageio_reset_write_mds(struct nfs_pageio_descriptor *pgio);
extern void nfs_writedata_release(struct nfs_write_data *wdata);
-extern void nfs_commit_free(struct nfs_write_data *p);
-extern int nfs_initiate_write(struct nfs_write_data *data,
- struct rpc_clnt *clnt,
+extern void nfs_commit_free(struct nfs_commit_data *p);
+extern int nfs_initiate_write(struct rpc_clnt *clnt,
+ struct nfs_write_data *data,
const struct rpc_call_ops *call_ops,
- int how);
+ int how, int flags);
extern void nfs_write_prepare(struct rpc_task *task, void *calldata);
-extern int nfs_initiate_commit(struct nfs_write_data *data,
- struct rpc_clnt *clnt,
+extern void nfs_commit_prepare(struct rpc_task *task, void *calldata);
+extern int nfs_initiate_commit(struct rpc_clnt *clnt,
+ struct nfs_commit_data *data,
const struct rpc_call_ops *call_ops,
- int how);
-extern void nfs_init_commit(struct nfs_write_data *data,
+ int how, int flags);
+extern void nfs_init_commit(struct nfs_commit_data *data,
struct list_head *head,
- struct pnfs_layout_segment *lseg);
+ struct pnfs_layout_segment *lseg,
+ struct nfs_commit_info *cinfo);
+int nfs_scan_commit_list(struct list_head *src, struct list_head *dst,
+ struct nfs_commit_info *cinfo, int max);
+int nfs_scan_commit(struct inode *inode, struct list_head *dst,
+ struct nfs_commit_info *cinfo);
+void nfs_mark_request_commit(struct nfs_page *req,
+ struct pnfs_layout_segment *lseg,
+ struct nfs_commit_info *cinfo);
+int nfs_generic_commit_list(struct inode *inode, struct list_head *head,
+ int how, struct nfs_commit_info *cinfo);
void nfs_retry_commit(struct list_head *page_list,
- struct pnfs_layout_segment *lseg);
-void nfs_commit_clear_lock(struct nfs_inode *nfsi);
-void nfs_commitdata_release(void *data);
-void nfs_commit_release_pages(struct nfs_write_data *data);
-void nfs_request_add_commit_list(struct nfs_page *req, struct list_head *head);
-void nfs_request_remove_commit_list(struct nfs_page *req);
+ struct pnfs_layout_segment *lseg,
+ struct nfs_commit_info *cinfo);
+void nfs_commitdata_release(struct nfs_commit_data *data);
+void nfs_request_add_commit_list(struct nfs_page *req, struct list_head *dst,
+ struct nfs_commit_info *cinfo);
+void nfs_request_remove_commit_list(struct nfs_page *req,
+ struct nfs_commit_info *cinfo);
+void nfs_init_cinfo(struct nfs_commit_info *cinfo,
+ struct inode *inode,
+ struct nfs_direct_req *dreq);
#ifdef CONFIG_MIGRATION
extern int nfs_migrate_page(struct address_space *,
#define nfs_migrate_page NULL
#endif
+/* direct.c */
+void nfs_init_cinfo_from_dreq(struct nfs_commit_info *cinfo,
+ struct nfs_direct_req *dreq);
+static inline void nfs_inode_dio_wait(struct inode *inode)
+{
+ inode_dio_wait(inode);
+}
+
/* nfs4proc.c */
extern void __nfs4_read_done_cb(struct nfs_read_data *);
-extern void nfs4_reset_read(struct rpc_task *task, struct nfs_read_data *data);
-extern int nfs4_init_client(struct nfs_client *clp,
+extern struct nfs_client *nfs4_init_client(struct nfs_client *clp,
const struct rpc_timeout *timeparms,
const char *ip_addr,
- rpc_authflavor_t authflavour,
- int noresvport);
-extern void nfs4_reset_write(struct rpc_task *task, struct nfs_write_data *data);
+ rpc_authflavor_t authflavour);
extern int _nfs4_call_sync(struct rpc_clnt *clnt,
struct nfs_server *server,
struct rpc_message *msg,
PAGE_SIZE - 1) >> PAGE_SHIFT;
}
+/*
+ * Convert a struct timespec into a 64-bit change attribute
+ *
+ * This does approximately the same thing as timespec_to_ns(),
+ * but for calculation efficiency, we multiply the seconds by
+ * 1024*1024*1024.
+ */
+static inline
+u64 nfs_timespec_to_change_attr(const struct timespec *ts)
+{
+ return ((u64)ts->tv_sec << 30) + ts->tv_nsec;
+}
static DECLARE_DELAYED_WORK(nfs_automount_task, nfs_expire_automounts);
int nfs_mountpoint_expiry_timeout = 500 * HZ;
-static struct vfsmount *nfs_do_submount(struct dentry *dentry,
- struct nfs_fh *fh,
- struct nfs_fattr *fattr,
- rpc_authflavor_t authflavor);
-
/*
* nfs_path - reconstruct the path given an arbitrary dentry
* @base - used to return pointer to the end of devname part of path
return ERR_PTR(-ENAMETOOLONG);
}
-#ifdef CONFIG_NFS_V4
-rpc_authflavor_t nfs_find_best_sec(struct nfs4_secinfo_flavors *flavors)
-{
- struct gss_api_mech *mech;
- struct xdr_netobj oid;
- int i;
- rpc_authflavor_t pseudoflavor = RPC_AUTH_UNIX;
-
- for (i = 0; i < flavors->num_flavors; i++) {
- struct nfs4_secinfo_flavor *flavor;
- flavor = &flavors->flavors[i];
-
- if (flavor->flavor == RPC_AUTH_NULL || flavor->flavor == RPC_AUTH_UNIX) {
- pseudoflavor = flavor->flavor;
- break;
- } else if (flavor->flavor == RPC_AUTH_GSS) {
- oid.len = flavor->gss.sec_oid4.len;
- oid.data = flavor->gss.sec_oid4.data;
- mech = gss_mech_get_by_OID(&oid);
- if (!mech)
- continue;
- pseudoflavor = gss_svc_to_pseudoflavor(mech, flavor->gss.service);
- gss_mech_put(mech);
- break;
- }
- }
-
- return pseudoflavor;
-}
-
-static struct rpc_clnt *nfs_lookup_mountpoint(struct inode *dir,
- struct qstr *name,
- struct nfs_fh *fh,
- struct nfs_fattr *fattr)
-{
- int err;
-
- if (NFS_PROTO(dir)->version == 4)
- return nfs4_proc_lookup_mountpoint(dir, name, fh, fattr);
-
- err = NFS_PROTO(dir)->lookup(NFS_SERVER(dir)->client, dir, name, fh, fattr);
- if (err)
- return ERR_PTR(err);
- return rpc_clone_client(NFS_SERVER(dir)->client);
-}
-#else /* CONFIG_NFS_V4 */
-static inline struct rpc_clnt *nfs_lookup_mountpoint(struct inode *dir,
- struct qstr *name,
- struct nfs_fh *fh,
- struct nfs_fattr *fattr)
-{
- int err = NFS_PROTO(dir)->lookup(NFS_SERVER(dir)->client, dir, name, fh, fattr);
- if (err)
- return ERR_PTR(err);
- return rpc_clone_client(NFS_SERVER(dir)->client);
-}
-#endif /* CONFIG_NFS_V4 */
-
/*
* nfs_d_automount - Handle crossing a mountpoint on the server
* @path - The mountpoint
struct vfsmount *nfs_d_automount(struct path *path)
{
struct vfsmount *mnt;
- struct dentry *parent;
+ struct nfs_server *server = NFS_SERVER(path->dentry->d_inode);
struct nfs_fh *fh = NULL;
struct nfs_fattr *fattr = NULL;
- struct rpc_clnt *client;
dprintk("--> nfs_d_automount()\n");
dprintk("%s: enter\n", __func__);
- /* Look it up again to get its attributes */
- parent = dget_parent(path->dentry);
- client = nfs_lookup_mountpoint(parent->d_inode, &path->dentry->d_name, fh, fattr);
- dput(parent);
- if (IS_ERR(client)) {
- mnt = ERR_CAST(client);
- goto out;
- }
-
- if (fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL)
- mnt = nfs_do_refmount(client, path->dentry);
- else
- mnt = nfs_do_submount(path->dentry, fh, fattr, client->cl_auth->au_flavor);
- rpc_shutdown_client(client);
-
+ mnt = server->nfs_client->rpc_ops->submount(server, path->dentry, fh, fattr);
if (IS_ERR(mnt))
goto out;
* @authflavor - security flavor to use when performing the mount
*
*/
-static struct vfsmount *nfs_do_submount(struct dentry *dentry,
- struct nfs_fh *fh,
- struct nfs_fattr *fattr,
- rpc_authflavor_t authflavor)
+struct vfsmount *nfs_do_submount(struct dentry *dentry, struct nfs_fh *fh,
+ struct nfs_fattr *fattr, rpc_authflavor_t authflavor)
{
struct nfs_clone_mount mountdata = {
.sb = dentry->d_sb,
dprintk("<-- nfs_do_submount() = %p\n", mnt);
return mnt;
}
+
+struct vfsmount *nfs_submount(struct nfs_server *server, struct dentry *dentry,
+ struct nfs_fh *fh, struct nfs_fattr *fattr)
+{
+ int err;
+ struct dentry *parent = dget_parent(dentry);
+
+ /* Look it up again to get its attributes */
+ err = server->nfs_client->rpc_ops->lookup(parent->d_inode, &dentry->d_name, fh, fattr);
+ dput(parent);
+ if (err != 0)
+ return ERR_PTR(err);
+
+ return nfs_do_submount(dentry, fh, fattr, server->client->cl_auth->au_flavor);
+}
+/*
+ * NFS-private data for each "struct net". Accessed with net_generic().
+ */
+
#ifndef __NFS_NETNS_H__
#define __NFS_NETNS_H__
struct idr cb_ident_idr; /* Protected by nfs_client_lock */
#endif
spinlock_t nfs_client_lock;
+ struct timespec boot_time;
};
extern int nfs_net_id;
#define NFS_readdirres_sz (1)
#define NFS_statfsres_sz (1+NFS_info_sz)
+static int nfs_stat_to_errno(enum nfs_stat);
/*
* While encoding arguments, set up the reply buffer in advance to
p = xdr_decode_time(p, &fattr->atime);
p = xdr_decode_time(p, &fattr->mtime);
xdr_decode_time(p, &fattr->ctime);
+ fattr->change_attr = nfs_timespec_to_change_attr(&fattr->ctime);
+
return 0;
out_overflow:
print_overflow_msg(__func__, xdr);
* Returns a local errno value, or -EIO if the NFS status code is
* not recognized. This function is used jointly by NFSv2 and NFSv3.
*/
-int nfs_stat_to_errno(enum nfs_stat status)
+static int nfs_stat_to_errno(enum nfs_stat status)
{
int i;
}
static int
-nfs3_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, struct qstr *name,
+nfs3_proc_lookup(struct inode *dir, struct qstr *name,
struct nfs_fh *fhandle, struct nfs_fattr *fattr)
{
struct nfs3_diropargs arg = {
static int nfs3_read_done(struct rpc_task *task, struct nfs_read_data *data)
{
- if (nfs3_async_handle_jukebox(task, data->inode))
+ struct inode *inode = data->header->inode;
+
+ if (nfs3_async_handle_jukebox(task, inode))
return -EAGAIN;
- nfs_invalidate_atime(data->inode);
- nfs_refresh_inode(data->inode, &data->fattr);
+ nfs_invalidate_atime(inode);
+ nfs_refresh_inode(inode, &data->fattr);
return 0;
}
static int nfs3_write_done(struct rpc_task *task, struct nfs_write_data *data)
{
- if (nfs3_async_handle_jukebox(task, data->inode))
+ struct inode *inode = data->header->inode;
+
+ if (nfs3_async_handle_jukebox(task, inode))
return -EAGAIN;
if (task->tk_status >= 0)
- nfs_post_op_update_inode_force_wcc(data->inode, data->res.fattr);
+ nfs_post_op_update_inode_force_wcc(inode, data->res.fattr);
return 0;
}
rpc_call_start(task);
}
-static int nfs3_commit_done(struct rpc_task *task, struct nfs_write_data *data)
+static void nfs3_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data)
+{
+ rpc_call_start(task);
+}
+
+static int nfs3_commit_done(struct rpc_task *task, struct nfs_commit_data *data)
{
if (nfs3_async_handle_jukebox(task, data->inode))
return -EAGAIN;
return 0;
}
-static void nfs3_proc_commit_setup(struct nfs_write_data *data, struct rpc_message *msg)
+static void nfs3_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg)
{
msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT];
}
.file_inode_ops = &nfs3_file_inode_operations,
.file_ops = &nfs_file_operations,
.getroot = nfs3_proc_get_root,
+ .submount = nfs_submount,
.getattr = nfs3_proc_getattr,
.setattr = nfs3_proc_setattr,
.lookup = nfs3_proc_lookup,
.write_rpc_prepare = nfs3_proc_write_rpc_prepare,
.write_done = nfs3_write_done,
.commit_setup = nfs3_proc_commit_setup,
+ .commit_rpc_prepare = nfs3_proc_commit_rpc_prepare,
.commit_done = nfs3_commit_done,
.lock = nfs3_proc_lock,
.clear_acl_cache = nfs3_forget_cached_acls,
XDR_QUADLEN(NFS_ACL_INLINE_BUFSIZE))
#define ACL3_setaclres_sz (1+NFS3_post_op_attr_sz)
+static int nfs3_stat_to_errno(enum nfs_stat);
+
/*
* Map file type to S_IFMT bits
*/
p = xdr_decode_nfstime3(p, &fattr->atime);
p = xdr_decode_nfstime3(p, &fattr->mtime);
xdr_decode_nfstime3(p, &fattr->ctime);
+ fattr->change_attr = nfs_timespec_to_change_attr(&fattr->ctime);
fattr->valid |= NFS_ATTR_FATTR_V3;
return 0;
goto out_overflow;
fattr->valid |= NFS_ATTR_FATTR_PRESIZE
+ | NFS_ATTR_FATTR_PRECHANGE
| NFS_ATTR_FATTR_PREMTIME
| NFS_ATTR_FATTR_PRECTIME;
p = xdr_decode_size3(p, &fattr->pre_size);
p = xdr_decode_nfstime3(p, &fattr->pre_mtime);
xdr_decode_nfstime3(p, &fattr->pre_ctime);
+ fattr->pre_change_attr = nfs_timespec_to_change_attr(&fattr->pre_ctime);
return 0;
out_overflow:
* };
*/
static void encode_commit3args(struct xdr_stream *xdr,
- const struct nfs_writeargs *args)
+ const struct nfs_commitargs *args)
{
__be32 *p;
static void nfs3_xdr_enc_commit3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs_writeargs *args)
+ const struct nfs_commitargs *args)
{
encode_commit3args(xdr, args);
}
out:
return error;
out_default:
- return nfs_stat_to_errno(status);
+ return nfs3_stat_to_errno(status);
}
/*
out:
return error;
out_status:
- return nfs_stat_to_errno(status);
+ return nfs3_stat_to_errno(status);
}
/*
error = decode_post_op_attr(xdr, result->dir_attr);
if (unlikely(error))
goto out;
- return nfs_stat_to_errno(status);
+ return nfs3_stat_to_errno(status);
}
/*
out:
return error;
out_default:
- return nfs_stat_to_errno(status);
+ return nfs3_stat_to_errno(status);
}
/*
out:
return error;
out_default:
- return nfs_stat_to_errno(status);
+ return nfs3_stat_to_errno(status);
}
/*
out:
return error;
out_status:
- return nfs_stat_to_errno(status);
+ return nfs3_stat_to_errno(status);
}
/*
out:
return error;
out_status:
- return nfs_stat_to_errno(status);
+ return nfs3_stat_to_errno(status);
}
/*
error = decode_wcc_data(xdr, result->dir_attr);
if (unlikely(error))
goto out;
- return nfs_stat_to_errno(status);
+ return nfs3_stat_to_errno(status);
}
/*
out:
return error;
out_status:
- return nfs_stat_to_errno(status);
+ return nfs3_stat_to_errno(status);
}
/*
out:
return error;
out_status:
- return nfs_stat_to_errno(status);
+ return nfs3_stat_to_errno(status);
}
/*
out:
return error;
out_status:
- return nfs_stat_to_errno(status);
+ return nfs3_stat_to_errno(status);
}
/**
error = decode_post_op_attr(xdr, result->dir_attr);
if (unlikely(error))
goto out;
- return nfs_stat_to_errno(status);
+ return nfs3_stat_to_errno(status);
}
/*
out:
return error;
out_status:
- return nfs_stat_to_errno(status);
+ return nfs3_stat_to_errno(status);
}
/*
out:
return error;
out_status:
- return nfs_stat_to_errno(status);
+ return nfs3_stat_to_errno(status);
}
/*
out:
return error;
out_status:
- return nfs_stat_to_errno(status);
+ return nfs3_stat_to_errno(status);
}
/*
*/
static int nfs3_xdr_dec_commit3res(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs_writeres *result)
+ struct nfs_commitres *result)
{
enum nfs_stat status;
int error;
out:
return error;
out_status:
- return nfs_stat_to_errno(status);
+ return nfs3_stat_to_errno(status);
}
#ifdef CONFIG_NFS_V3_ACL
out:
return error;
out_default:
- return nfs_stat_to_errno(status);
+ return nfs3_stat_to_errno(status);
}
static int nfs3_xdr_dec_setacl3res(struct rpc_rqst *req,
out:
return error;
out_default:
- return nfs_stat_to_errno(status);
+ return nfs3_stat_to_errno(status);
}
#endif /* CONFIG_NFS_V3_ACL */
+
+/*
+ * We need to translate between nfs status return values and
+ * the local errno values which may not be the same.
+ */
+static const struct {
+ int stat;
+ int errno;
+} nfs_errtbl[] = {
+ { NFS_OK, 0 },
+ { NFSERR_PERM, -EPERM },
+ { NFSERR_NOENT, -ENOENT },
+ { NFSERR_IO, -errno_NFSERR_IO},
+ { NFSERR_NXIO, -ENXIO },
+/* { NFSERR_EAGAIN, -EAGAIN }, */
+ { NFSERR_ACCES, -EACCES },
+ { NFSERR_EXIST, -EEXIST },
+ { NFSERR_XDEV, -EXDEV },
+ { NFSERR_NODEV, -ENODEV },
+ { NFSERR_NOTDIR, -ENOTDIR },
+ { NFSERR_ISDIR, -EISDIR },
+ { NFSERR_INVAL, -EINVAL },
+ { NFSERR_FBIG, -EFBIG },
+ { NFSERR_NOSPC, -ENOSPC },
+ { NFSERR_ROFS, -EROFS },
+ { NFSERR_MLINK, -EMLINK },
+ { NFSERR_NAMETOOLONG, -ENAMETOOLONG },
+ { NFSERR_NOTEMPTY, -ENOTEMPTY },
+ { NFSERR_DQUOT, -EDQUOT },
+ { NFSERR_STALE, -ESTALE },
+ { NFSERR_REMOTE, -EREMOTE },
+#ifdef EWFLUSH
+ { NFSERR_WFLUSH, -EWFLUSH },
+#endif
+ { NFSERR_BADHANDLE, -EBADHANDLE },
+ { NFSERR_NOT_SYNC, -ENOTSYNC },
+ { NFSERR_BAD_COOKIE, -EBADCOOKIE },
+ { NFSERR_NOTSUPP, -ENOTSUPP },
+ { NFSERR_TOOSMALL, -ETOOSMALL },
+ { NFSERR_SERVERFAULT, -EREMOTEIO },
+ { NFSERR_BADTYPE, -EBADTYPE },
+ { NFSERR_JUKEBOX, -EJUKEBOX },
+ { -1, -EIO }
+};
+
+/**
+ * nfs3_stat_to_errno - convert an NFS status code to a local errno
+ * @status: NFS status code to convert
+ *
+ * Returns a local errno value, or -EIO if the NFS status code is
+ * not recognized. This function is used jointly by NFSv2 and NFSv3.
+ */
+static int nfs3_stat_to_errno(enum nfs_stat status)
+{
+ int i;
+
+ for (i = 0; nfs_errtbl[i].stat != -1; i++) {
+ if (nfs_errtbl[i].stat == (int)status)
+ return nfs_errtbl[i].errno;
+ }
+ dprintk("NFS: Unrecognized nfs status value: %u\n", status);
+ return nfs_errtbl[i].errno;
+}
+
+
#define PROC(proc, argtype, restype, timer) \
[NFS3PROC_##proc] = { \
.p_proc = NFS3PROC_##proc, \
NFS4CLNT_RECALL_SLOT,
NFS4CLNT_LEASE_CONFIRM,
NFS4CLNT_SERVER_SCOPE_MISMATCH,
+ NFS4CLNT_PURGE_STATE,
+ NFS4CLNT_BIND_CONN_TO_SESSION,
};
enum nfs4_session_state {
const struct nfs4_state_maintenance_ops *state_renewal_ops;
};
-struct nfs_unique_id {
- struct rb_node rb_node;
- __u64 id;
-};
-
#define NFS_SEQID_CONFIRMED 1
struct nfs_seqid_counter {
ktime_t create_time;
extern const struct inode_operations nfs4_dir_inode_operations;
/* nfs4namespace.c */
+rpc_authflavor_t nfs_find_best_sec(struct nfs4_secinfo_flavors *);
struct rpc_clnt *nfs4_create_sec_client(struct rpc_clnt *, struct inode *, struct qstr *);
+struct vfsmount *nfs4_submount(struct nfs_server *, struct dentry *,
+ struct nfs_fh *, struct nfs_fattr *);
/* nfs4proc.c */
extern int nfs4_proc_setclientid(struct nfs_client *, u32, unsigned short, struct rpc_cred *, struct nfs4_setclientid_res *);
extern int nfs4_proc_setclientid_confirm(struct nfs_client *, struct nfs4_setclientid_res *arg, struct rpc_cred *);
+extern int nfs4_proc_get_rootfh(struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *);
+extern int nfs4_proc_bind_conn_to_session(struct nfs_client *, struct rpc_cred *cred);
extern int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred);
+extern int nfs4_destroy_clientid(struct nfs_client *clp);
extern int nfs4_init_clientid(struct nfs_client *, struct rpc_cred *);
extern int nfs41_init_clientid(struct nfs_client *, struct rpc_cred *);
extern int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait, bool roc);
struct rpc_task *task);
extern void nfs4_destroy_session(struct nfs4_session *session);
extern struct nfs4_session *nfs4_alloc_session(struct nfs_client *clp);
-extern int nfs4_proc_create_session(struct nfs_client *);
-extern int nfs4_proc_destroy_session(struct nfs4_session *);
+extern int nfs4_proc_create_session(struct nfs_client *, struct rpc_cred *);
+extern int nfs4_proc_destroy_session(struct nfs4_session *, struct rpc_cred *);
extern int nfs4_init_session(struct nfs_server *server);
extern int nfs4_proc_get_lease_time(struct nfs_client *clp,
struct nfs_fsinfo *fsinfo);
#if defined(CONFIG_NFS_V4_1)
struct rpc_cred *nfs4_get_machine_cred_locked(struct nfs_client *clp);
struct rpc_cred *nfs4_get_exchange_id_cred(struct nfs_client *clp);
-extern void nfs4_schedule_session_recovery(struct nfs4_session *);
+extern void nfs4_schedule_session_recovery(struct nfs4_session *, int);
#else
-static inline void nfs4_schedule_session_recovery(struct nfs4_session *session)
+static inline void nfs4_schedule_session_recovery(struct nfs4_session *session, int err)
{
}
#endif /* CONFIG_NFS_V4_1 */
extern void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags);
extern void nfs41_handle_recall_slot(struct nfs_client *clp);
extern void nfs41_handle_server_scope(struct nfs_client *,
- struct server_scope **);
+ struct nfs41_server_scope **);
extern void nfs4_put_lock_state(struct nfs4_lock_state *lsp);
extern int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl);
extern void nfs4_select_rw_stateid(nfs4_stateid *, struct nfs4_state *,
BUG();
}
+static void filelayout_reset_write(struct nfs_write_data *data)
+{
+ struct nfs_pgio_header *hdr = data->header;
+ struct rpc_task *task = &data->task;
+
+ if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags)) {
+ dprintk("%s Reset task %5u for i/o through MDS "
+ "(req %s/%lld, %u bytes @ offset %llu)\n", __func__,
+ data->task.tk_pid,
+ hdr->inode->i_sb->s_id,
+ (long long)NFS_FILEID(hdr->inode),
+ data->args.count,
+ (unsigned long long)data->args.offset);
+
+ task->tk_status = pnfs_write_done_resend_to_mds(hdr->inode,
+ &hdr->pages,
+ hdr->completion_ops);
+ }
+}
+
+static void filelayout_reset_read(struct nfs_read_data *data)
+{
+ struct nfs_pgio_header *hdr = data->header;
+ struct rpc_task *task = &data->task;
+
+ if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags)) {
+ dprintk("%s Reset task %5u for i/o through MDS "
+ "(req %s/%lld, %u bytes @ offset %llu)\n", __func__,
+ data->task.tk_pid,
+ hdr->inode->i_sb->s_id,
+ (long long)NFS_FILEID(hdr->inode),
+ data->args.count,
+ (unsigned long long)data->args.offset);
+
+ task->tk_status = pnfs_read_done_resend_to_mds(hdr->inode,
+ &hdr->pages,
+ hdr->completion_ops);
+ }
+}
+
static int filelayout_async_handle_error(struct rpc_task *task,
struct nfs4_state *state,
struct nfs_client *clp,
- int *reset)
+ struct pnfs_layout_segment *lseg)
{
- struct nfs_server *mds_server = NFS_SERVER(state->inode);
+ struct inode *inode = lseg->pls_layout->plh_inode;
+ struct nfs_server *mds_server = NFS_SERVER(inode);
+ struct nfs4_deviceid_node *devid = FILELAYOUT_DEVID_NODE(lseg);
struct nfs_client *mds_client = mds_server->nfs_client;
+ struct nfs4_slot_table *tbl = &clp->cl_session->fc_slot_table;
if (task->tk_status >= 0)
return 0;
- *reset = 0;
switch (task->tk_status) {
/* MDS state errors */
case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
+ if (state == NULL)
+ break;
nfs_remove_bad_delegation(state->inode);
case -NFS4ERR_OPENMODE:
+ if (state == NULL)
+ break;
nfs4_schedule_stateid_recovery(mds_server, state);
goto wait_on_recovery;
case -NFS4ERR_EXPIRED:
- nfs4_schedule_stateid_recovery(mds_server, state);
+ if (state != NULL)
+ nfs4_schedule_stateid_recovery(mds_server, state);
nfs4_schedule_lease_recovery(mds_client);
goto wait_on_recovery;
/* DS session errors */
dprintk("%s ERROR %d, Reset session. Exchangeid "
"flags 0x%x\n", __func__, task->tk_status,
clp->cl_exchange_flags);
- nfs4_schedule_session_recovery(clp->cl_session);
+ nfs4_schedule_session_recovery(clp->cl_session, task->tk_status);
break;
case -NFS4ERR_DELAY:
case -NFS4ERR_GRACE:
break;
case -NFS4ERR_RETRY_UNCACHED_REP:
break;
+ /* Invalidate Layout errors */
+ case -NFS4ERR_PNFS_NO_LAYOUT:
+ case -ESTALE: /* mapped NFS4ERR_STALE */
+ case -EBADHANDLE: /* mapped NFS4ERR_BADHANDLE */
+ case -EISDIR: /* mapped NFS4ERR_ISDIR */
+ case -NFS4ERR_FHEXPIRED:
+ case -NFS4ERR_WRONG_TYPE:
+ dprintk("%s Invalid layout error %d\n", __func__,
+ task->tk_status);
+ /*
+ * Destroy layout so new i/o will get a new layout.
+ * Layout will not be destroyed until all current lseg
+ * references are put. Mark layout as invalid to resend failed
+ * i/o and all i/o waiting on the slot table to the MDS until
+ * layout is destroyed and a new valid layout is obtained.
+ */
+ set_bit(NFS_LAYOUT_INVALID,
+ &NFS_I(inode)->layout->plh_flags);
+ pnfs_destroy_layout(NFS_I(inode));
+ rpc_wake_up(&tbl->slot_tbl_waitq);
+ goto reset;
+ /* RPC connection errors */
+ case -ECONNREFUSED:
+ case -EHOSTDOWN:
+ case -EHOSTUNREACH:
+ case -ENETUNREACH:
+ case -EIO:
+ case -ETIMEDOUT:
+ case -EPIPE:
+ dprintk("%s DS connection error %d\n", __func__,
+ task->tk_status);
+ if (!filelayout_test_devid_invalid(devid))
+ _pnfs_return_layout(inode);
+ filelayout_mark_devid_invalid(devid);
+ rpc_wake_up(&tbl->slot_tbl_waitq);
+ nfs4_ds_disconnect(clp);
+ /* fall through */
default:
- dprintk("%s DS error. Retry through MDS %d\n", __func__,
+reset:
+ dprintk("%s Retry through MDS. Error %d\n", __func__,
task->tk_status);
- *reset = 1;
- break;
+ return -NFS4ERR_RESET_TO_MDS;
}
out:
task->tk_status = 0;
static int filelayout_read_done_cb(struct rpc_task *task,
struct nfs_read_data *data)
{
- int reset = 0;
+ struct nfs_pgio_header *hdr = data->header;
+ int err;
- dprintk("%s DS read\n", __func__);
+ err = filelayout_async_handle_error(task, data->args.context->state,
+ data->ds_clp, hdr->lseg);
- if (filelayout_async_handle_error(task, data->args.context->state,
- data->ds_clp, &reset) == -EAGAIN) {
- dprintk("%s calling restart ds_clp %p ds_clp->cl_session %p\n",
- __func__, data->ds_clp, data->ds_clp->cl_session);
- if (reset) {
- pnfs_set_lo_fail(data->lseg);
- nfs4_reset_read(task, data);
- }
+ switch (err) {
+ case -NFS4ERR_RESET_TO_MDS:
+ filelayout_reset_read(data);
+ return task->tk_status;
+ case -EAGAIN:
rpc_restart_call_prepare(task);
return -EAGAIN;
}
static void
filelayout_set_layoutcommit(struct nfs_write_data *wdata)
{
- if (FILELAYOUT_LSEG(wdata->lseg)->commit_through_mds ||
+ struct nfs_pgio_header *hdr = wdata->header;
+
+ if (FILELAYOUT_LSEG(hdr->lseg)->commit_through_mds ||
wdata->res.verf->committed == NFS_FILE_SYNC)
return;
pnfs_set_layoutcommit(wdata);
- dprintk("%s ionde %lu pls_end_pos %lu\n", __func__, wdata->inode->i_ino,
- (unsigned long) NFS_I(wdata->inode)->layout->plh_lwb);
+ dprintk("%s ionde %lu pls_end_pos %lu\n", __func__, hdr->inode->i_ino,
+ (unsigned long) NFS_I(hdr->inode)->layout->plh_lwb);
}
/*
*/
static void filelayout_read_prepare(struct rpc_task *task, void *data)
{
- struct nfs_read_data *rdata = (struct nfs_read_data *)data;
+ struct nfs_read_data *rdata = data;
+ if (filelayout_reset_to_mds(rdata->header->lseg)) {
+ dprintk("%s task %u reset io to MDS\n", __func__, task->tk_pid);
+ filelayout_reset_read(rdata);
+ rpc_exit(task, 0);
+ return;
+ }
rdata->read_done_cb = filelayout_read_done_cb;
if (nfs41_setup_sequence(rdata->ds_clp->cl_session,
static void filelayout_read_call_done(struct rpc_task *task, void *data)
{
- struct nfs_read_data *rdata = (struct nfs_read_data *)data;
+ struct nfs_read_data *rdata = data;
dprintk("--> %s task->tk_status %d\n", __func__, task->tk_status);
+ if (test_bit(NFS_IOHDR_REDO, &rdata->header->flags) &&
+ task->tk_status == 0)
+ return;
+
/* Note this may cause RPC to be resent */
- rdata->mds_ops->rpc_call_done(task, data);
+ rdata->header->mds_ops->rpc_call_done(task, data);
}
static void filelayout_read_count_stats(struct rpc_task *task, void *data)
{
- struct nfs_read_data *rdata = (struct nfs_read_data *)data;
+ struct nfs_read_data *rdata = data;
- rpc_count_iostats(task, NFS_SERVER(rdata->inode)->client->cl_metrics);
+ rpc_count_iostats(task, NFS_SERVER(rdata->header->inode)->client->cl_metrics);
}
static void filelayout_read_release(void *data)
{
- struct nfs_read_data *rdata = (struct nfs_read_data *)data;
+ struct nfs_read_data *rdata = data;
- put_lseg(rdata->lseg);
- rdata->mds_ops->rpc_release(data);
+ nfs_put_client(rdata->ds_clp);
+ rdata->header->mds_ops->rpc_release(data);
}
static int filelayout_write_done_cb(struct rpc_task *task,
struct nfs_write_data *data)
{
- int reset = 0;
-
- if (filelayout_async_handle_error(task, data->args.context->state,
- data->ds_clp, &reset) == -EAGAIN) {
- dprintk("%s calling restart ds_clp %p ds_clp->cl_session %p\n",
- __func__, data->ds_clp, data->ds_clp->cl_session);
- if (reset) {
- pnfs_set_lo_fail(data->lseg);
- nfs4_reset_write(task, data);
- }
+ struct nfs_pgio_header *hdr = data->header;
+ int err;
+
+ err = filelayout_async_handle_error(task, data->args.context->state,
+ data->ds_clp, hdr->lseg);
+
+ switch (err) {
+ case -NFS4ERR_RESET_TO_MDS:
+ filelayout_reset_write(data);
+ return task->tk_status;
+ case -EAGAIN:
rpc_restart_call_prepare(task);
return -EAGAIN;
}
}
/* Fake up some data that will cause nfs_commit_release to retry the writes. */
-static void prepare_to_resend_writes(struct nfs_write_data *data)
+static void prepare_to_resend_writes(struct nfs_commit_data *data)
{
struct nfs_page *first = nfs_list_entry(data->pages.next);
}
static int filelayout_commit_done_cb(struct rpc_task *task,
- struct nfs_write_data *data)
+ struct nfs_commit_data *data)
{
- int reset = 0;
-
- if (filelayout_async_handle_error(task, data->args.context->state,
- data->ds_clp, &reset) == -EAGAIN) {
- dprintk("%s calling restart ds_clp %p ds_clp->cl_session %p\n",
- __func__, data->ds_clp, data->ds_clp->cl_session);
- if (reset) {
- prepare_to_resend_writes(data);
- pnfs_set_lo_fail(data->lseg);
- } else
- rpc_restart_call_prepare(task);
+ int err;
+
+ err = filelayout_async_handle_error(task, NULL, data->ds_clp,
+ data->lseg);
+
+ switch (err) {
+ case -NFS4ERR_RESET_TO_MDS:
+ prepare_to_resend_writes(data);
+ return -EAGAIN;
+ case -EAGAIN:
+ rpc_restart_call_prepare(task);
return -EAGAIN;
}
static void filelayout_write_prepare(struct rpc_task *task, void *data)
{
- struct nfs_write_data *wdata = (struct nfs_write_data *)data;
+ struct nfs_write_data *wdata = data;
+ if (filelayout_reset_to_mds(wdata->header->lseg)) {
+ dprintk("%s task %u reset io to MDS\n", __func__, task->tk_pid);
+ filelayout_reset_write(wdata);
+ rpc_exit(task, 0);
+ return;
+ }
if (nfs41_setup_sequence(wdata->ds_clp->cl_session,
&wdata->args.seq_args, &wdata->res.seq_res,
task))
static void filelayout_write_call_done(struct rpc_task *task, void *data)
{
- struct nfs_write_data *wdata = (struct nfs_write_data *)data;
+ struct nfs_write_data *wdata = data;
+
+ if (test_bit(NFS_IOHDR_REDO, &wdata->header->flags) &&
+ task->tk_status == 0)
+ return;
/* Note this may cause RPC to be resent */
- wdata->mds_ops->rpc_call_done(task, data);
+ wdata->header->mds_ops->rpc_call_done(task, data);
}
static void filelayout_write_count_stats(struct rpc_task *task, void *data)
{
- struct nfs_write_data *wdata = (struct nfs_write_data *)data;
+ struct nfs_write_data *wdata = data;
- rpc_count_iostats(task, NFS_SERVER(wdata->inode)->client->cl_metrics);
+ rpc_count_iostats(task, NFS_SERVER(wdata->header->inode)->client->cl_metrics);
}
static void filelayout_write_release(void *data)
{
- struct nfs_write_data *wdata = (struct nfs_write_data *)data;
+ struct nfs_write_data *wdata = data;
+
+ nfs_put_client(wdata->ds_clp);
+ wdata->header->mds_ops->rpc_release(data);
+}
+
+static void filelayout_commit_prepare(struct rpc_task *task, void *data)
+{
+ struct nfs_commit_data *wdata = data;
- put_lseg(wdata->lseg);
- wdata->mds_ops->rpc_release(data);
+ if (nfs41_setup_sequence(wdata->ds_clp->cl_session,
+ &wdata->args.seq_args, &wdata->res.seq_res,
+ task))
+ return;
+
+ rpc_call_start(task);
+}
+
+static void filelayout_write_commit_done(struct rpc_task *task, void *data)
+{
+ struct nfs_commit_data *wdata = data;
+
+ /* Note this may cause RPC to be resent */
+ wdata->mds_ops->rpc_call_done(task, data);
+}
+
+static void filelayout_commit_count_stats(struct rpc_task *task, void *data)
+{
+ struct nfs_commit_data *cdata = data;
+
+ rpc_count_iostats(task, NFS_SERVER(cdata->inode)->client->cl_metrics);
}
-static void filelayout_commit_release(void *data)
+static void filelayout_commit_release(void *calldata)
{
- struct nfs_write_data *wdata = (struct nfs_write_data *)data;
+ struct nfs_commit_data *data = calldata;
- nfs_commit_release_pages(wdata);
- if (atomic_dec_and_test(&NFS_I(wdata->inode)->commits_outstanding))
- nfs_commit_clear_lock(NFS_I(wdata->inode));
- put_lseg(wdata->lseg);
- nfs_commitdata_release(wdata);
+ data->completion_ops->completion(data);
+ put_lseg(data->lseg);
+ nfs_put_client(data->ds_clp);
+ nfs_commitdata_release(data);
}
static const struct rpc_call_ops filelayout_read_call_ops = {
};
static const struct rpc_call_ops filelayout_commit_call_ops = {
- .rpc_call_prepare = filelayout_write_prepare,
- .rpc_call_done = filelayout_write_call_done,
- .rpc_count_stats = filelayout_write_count_stats,
+ .rpc_call_prepare = filelayout_commit_prepare,
+ .rpc_call_done = filelayout_write_commit_done,
+ .rpc_count_stats = filelayout_commit_count_stats,
.rpc_release = filelayout_commit_release,
};
static enum pnfs_try_status
filelayout_read_pagelist(struct nfs_read_data *data)
{
- struct pnfs_layout_segment *lseg = data->lseg;
+ struct nfs_pgio_header *hdr = data->header;
+ struct pnfs_layout_segment *lseg = hdr->lseg;
struct nfs4_pnfs_ds *ds;
loff_t offset = data->args.offset;
u32 j, idx;
int status;
dprintk("--> %s ino %lu pgbase %u req %Zu@%llu\n",
- __func__, data->inode->i_ino,
+ __func__, hdr->inode->i_ino,
data->args.pgbase, (size_t)data->args.count, offset);
- if (test_bit(NFS_DEVICEID_INVALID, &FILELAYOUT_DEVID_NODE(lseg)->flags))
- return PNFS_NOT_ATTEMPTED;
-
/* Retrieve the correct rpc_client for the byte range */
j = nfs4_fl_calc_j_index(lseg, offset);
idx = nfs4_fl_calc_ds_index(lseg, j);
ds = nfs4_fl_prepare_ds(lseg, idx);
- if (!ds) {
- /* Either layout fh index faulty, or ds connect failed */
- set_bit(lo_fail_bit(IOMODE_RW), &lseg->pls_layout->plh_flags);
- set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags);
+ if (!ds)
return PNFS_NOT_ATTEMPTED;
- }
- dprintk("%s USE DS: %s\n", __func__, ds->ds_remotestr);
+ dprintk("%s USE DS: %s cl_count %d\n", __func__,
+ ds->ds_remotestr, atomic_read(&ds->ds_clp->cl_count));
/* No multipath support. Use first DS */
+ atomic_inc(&ds->ds_clp->cl_count);
data->ds_clp = ds->ds_clp;
fh = nfs4_fl_select_ds_fh(lseg, j);
if (fh)
data->mds_offset = offset;
/* Perform an asynchronous read to ds */
- status = nfs_initiate_read(data, ds->ds_clp->cl_rpcclient,
- &filelayout_read_call_ops);
+ status = nfs_initiate_read(ds->ds_clp->cl_rpcclient, data,
+ &filelayout_read_call_ops, RPC_TASK_SOFTCONN);
BUG_ON(status != 0);
return PNFS_ATTEMPTED;
}
static enum pnfs_try_status
filelayout_write_pagelist(struct nfs_write_data *data, int sync)
{
- struct pnfs_layout_segment *lseg = data->lseg;
+ struct nfs_pgio_header *hdr = data->header;
+ struct pnfs_layout_segment *lseg = hdr->lseg;
struct nfs4_pnfs_ds *ds;
loff_t offset = data->args.offset;
u32 j, idx;
struct nfs_fh *fh;
int status;
- if (test_bit(NFS_DEVICEID_INVALID, &FILELAYOUT_DEVID_NODE(lseg)->flags))
- return PNFS_NOT_ATTEMPTED;
-
/* Retrieve the correct rpc_client for the byte range */
j = nfs4_fl_calc_j_index(lseg, offset);
idx = nfs4_fl_calc_ds_index(lseg, j);
ds = nfs4_fl_prepare_ds(lseg, idx);
- if (!ds) {
- printk(KERN_ERR "NFS: %s: prepare_ds failed, use MDS\n",
- __func__);
- set_bit(lo_fail_bit(IOMODE_RW), &lseg->pls_layout->plh_flags);
- set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags);
+ if (!ds)
return PNFS_NOT_ATTEMPTED;
- }
- dprintk("%s ino %lu sync %d req %Zu@%llu DS: %s\n", __func__,
- data->inode->i_ino, sync, (size_t) data->args.count, offset,
- ds->ds_remotestr);
+ dprintk("%s ino %lu sync %d req %Zu@%llu DS: %s cl_count %d\n",
+ __func__, hdr->inode->i_ino, sync, (size_t) data->args.count,
+ offset, ds->ds_remotestr, atomic_read(&ds->ds_clp->cl_count));
data->write_done_cb = filelayout_write_done_cb;
+ atomic_inc(&ds->ds_clp->cl_count);
data->ds_clp = ds->ds_clp;
fh = nfs4_fl_select_ds_fh(lseg, j);
if (fh)
data->args.offset = filelayout_get_dserver_offset(lseg, offset);
/* Perform an asynchronous write */
- status = nfs_initiate_write(data, ds->ds_clp->cl_rpcclient,
- &filelayout_write_call_ops, sync);
+ status = nfs_initiate_write(ds->ds_clp->cl_rpcclient, data,
+ &filelayout_write_call_ops, sync,
+ RPC_TASK_SOFTCONN);
BUG_ON(status != 0);
return PNFS_ATTEMPTED;
}
dprintk("--> %s\n", __func__);
nfs4_fl_put_deviceid(fl->dsaddr);
- kfree(fl->commit_buckets);
+ /* This assumes a single RW lseg */
+ if (lseg->pls_range.iomode == IOMODE_RW) {
+ struct nfs4_filelayout *flo;
+
+ flo = FILELAYOUT_FROM_HDR(lseg->pls_layout);
+ flo->commit_info.nbuckets = 0;
+ kfree(flo->commit_info.buckets);
+ flo->commit_info.buckets = NULL;
+ }
_filelayout_free_lseg(fl);
}
+static int
+filelayout_alloc_commit_info(struct pnfs_layout_segment *lseg,
+ struct nfs_commit_info *cinfo,
+ gfp_t gfp_flags)
+{
+ struct nfs4_filelayout_segment *fl = FILELAYOUT_LSEG(lseg);
+ struct pnfs_commit_bucket *buckets;
+ int size;
+
+ if (fl->commit_through_mds)
+ return 0;
+ if (cinfo->ds->nbuckets != 0) {
+ /* This assumes there is only one IOMODE_RW lseg. What
+ * we really want to do is have a layout_hdr level
+ * dictionary of <multipath_list4, fh> keys, each
+ * associated with a struct list_head, populated by calls
+ * to filelayout_write_pagelist().
+ * */
+ return 0;
+ }
+
+ size = (fl->stripe_type == STRIPE_SPARSE) ?
+ fl->dsaddr->ds_num : fl->dsaddr->stripe_count;
+
+ buckets = kcalloc(size, sizeof(struct pnfs_commit_bucket),
+ gfp_flags);
+ if (!buckets)
+ return -ENOMEM;
+ else {
+ int i;
+
+ spin_lock(cinfo->lock);
+ if (cinfo->ds->nbuckets != 0)
+ kfree(buckets);
+ else {
+ cinfo->ds->buckets = buckets;
+ cinfo->ds->nbuckets = size;
+ for (i = 0; i < size; i++) {
+ INIT_LIST_HEAD(&buckets[i].written);
+ INIT_LIST_HEAD(&buckets[i].committing);
+ }
+ }
+ spin_unlock(cinfo->lock);
+ return 0;
+ }
+}
+
static struct pnfs_layout_segment *
filelayout_alloc_lseg(struct pnfs_layout_hdr *layoutid,
struct nfs4_layoutget_res *lgr,
_filelayout_free_lseg(fl);
return NULL;
}
-
- /* This assumes there is only one IOMODE_RW lseg. What
- * we really want to do is have a layout_hdr level
- * dictionary of <multipath_list4, fh> keys, each
- * associated with a struct list_head, populated by calls
- * to filelayout_write_pagelist().
- * */
- if ((!fl->commit_through_mds) && (lgr->range.iomode == IOMODE_RW)) {
- int i;
- int size = (fl->stripe_type == STRIPE_SPARSE) ?
- fl->dsaddr->ds_num : fl->dsaddr->stripe_count;
-
- fl->commit_buckets = kcalloc(size, sizeof(struct nfs4_fl_commit_bucket), gfp_flags);
- if (!fl->commit_buckets) {
- filelayout_free_lseg(&fl->generic_hdr);
- return NULL;
- }
- fl->number_of_buckets = size;
- for (i = 0; i < size; i++) {
- INIT_LIST_HEAD(&fl->commit_buckets[i].written);
- INIT_LIST_HEAD(&fl->commit_buckets[i].committing);
- }
- }
return &fl->generic_hdr;
}
!nfs_generic_pg_test(pgio, prev, req))
return false;
- p_stripe = (u64)prev->wb_index << PAGE_CACHE_SHIFT;
- r_stripe = (u64)req->wb_index << PAGE_CACHE_SHIFT;
+ p_stripe = (u64)req_offset(prev);
+ r_stripe = (u64)req_offset(req);
stripe_unit = FILELAYOUT_LSEG(pgio->pg_lseg)->stripe_unit;
do_div(p_stripe, stripe_unit);
{
BUG_ON(pgio->pg_lseg != NULL);
+ if (req->wb_offset != req->wb_pgbase) {
+ /*
+ * Handling unaligned pages is difficult, because have to
+ * somehow split a req in two in certain cases in the
+ * pg.test code. Avoid this by just not using pnfs
+ * in this case.
+ */
+ nfs_pageio_reset_read_mds(pgio);
+ return;
+ }
pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
req->wb_context,
0,
filelayout_pg_init_write(struct nfs_pageio_descriptor *pgio,
struct nfs_page *req)
{
+ struct nfs_commit_info cinfo;
+ int status;
+
BUG_ON(pgio->pg_lseg != NULL);
+ if (req->wb_offset != req->wb_pgbase)
+ goto out_mds;
pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
req->wb_context,
0,
GFP_NOFS);
/* If no lseg, fall back to write through mds */
if (pgio->pg_lseg == NULL)
- nfs_pageio_reset_write_mds(pgio);
+ goto out_mds;
+ nfs_init_cinfo(&cinfo, pgio->pg_inode, pgio->pg_dreq);
+ status = filelayout_alloc_commit_info(pgio->pg_lseg, &cinfo, GFP_NOFS);
+ if (status < 0) {
+ put_lseg(pgio->pg_lseg);
+ pgio->pg_lseg = NULL;
+ goto out_mds;
+ }
+ return;
+out_mds:
+ nfs_pageio_reset_write_mds(pgio);
}
static const struct nfs_pageio_ops filelayout_pg_read_ops = {
* If this will make the bucket empty, it will need to put the lseg reference.
*/
static void
-filelayout_clear_request_commit(struct nfs_page *req)
+filelayout_clear_request_commit(struct nfs_page *req,
+ struct nfs_commit_info *cinfo)
{
struct pnfs_layout_segment *freeme = NULL;
- struct inode *inode = req->wb_context->dentry->d_inode;
- spin_lock(&inode->i_lock);
+ spin_lock(cinfo->lock);
if (!test_and_clear_bit(PG_COMMIT_TO_DS, &req->wb_flags))
goto out;
+ cinfo->ds->nwritten--;
if (list_is_singular(&req->wb_list)) {
- struct pnfs_layout_segment *lseg;
+ struct pnfs_commit_bucket *bucket;
- /* From here we can find the bucket, but for the moment,
- * since there is only one relevant lseg...
- */
- list_for_each_entry(lseg, &NFS_I(inode)->layout->plh_segs, pls_list) {
- if (lseg->pls_range.iomode == IOMODE_RW) {
- freeme = lseg;
- break;
- }
- }
+ bucket = list_first_entry(&req->wb_list,
+ struct pnfs_commit_bucket,
+ written);
+ freeme = bucket->wlseg;
+ bucket->wlseg = NULL;
}
out:
- nfs_request_remove_commit_list(req);
- spin_unlock(&inode->i_lock);
+ nfs_request_remove_commit_list(req, cinfo);
+ spin_unlock(cinfo->lock);
put_lseg(freeme);
}
static struct list_head *
filelayout_choose_commit_list(struct nfs_page *req,
- struct pnfs_layout_segment *lseg)
+ struct pnfs_layout_segment *lseg,
+ struct nfs_commit_info *cinfo)
{
struct nfs4_filelayout_segment *fl = FILELAYOUT_LSEG(lseg);
u32 i, j;
struct list_head *list;
+ struct pnfs_commit_bucket *buckets;
if (fl->commit_through_mds)
- return &NFS_I(req->wb_context->dentry->d_inode)->commit_list;
+ return &cinfo->mds->list;
/* Note that we are calling nfs4_fl_calc_j_index on each page
* that ends up being committed to a data server. An attractive
* to store the value calculated in filelayout_write_pagelist
* and just use that here.
*/
- j = nfs4_fl_calc_j_index(lseg,
- (loff_t)req->wb_index << PAGE_CACHE_SHIFT);
+ j = nfs4_fl_calc_j_index(lseg, req_offset(req));
i = select_bucket_index(fl, j);
- list = &fl->commit_buckets[i].written;
+ buckets = cinfo->ds->buckets;
+ list = &buckets[i].written;
if (list_empty(list)) {
/* Non-empty buckets hold a reference on the lseg. That ref
* is normally transferred to the COMMIT call and released
* there. It could also be released if the last req is pulled
* off due to a rewrite, in which case it will be done in
- * filelayout_remove_commit_req
+ * filelayout_clear_request_commit
*/
- get_lseg(lseg);
+ buckets[i].wlseg = get_lseg(lseg);
}
set_bit(PG_COMMIT_TO_DS, &req->wb_flags);
+ cinfo->ds->nwritten++;
return list;
}
static void
filelayout_mark_request_commit(struct nfs_page *req,
- struct pnfs_layout_segment *lseg)
+ struct pnfs_layout_segment *lseg,
+ struct nfs_commit_info *cinfo)
{
struct list_head *list;
- list = filelayout_choose_commit_list(req, lseg);
- nfs_request_add_commit_list(req, list);
+ list = filelayout_choose_commit_list(req, lseg, cinfo);
+ nfs_request_add_commit_list(req, list, cinfo);
}
static u32 calc_ds_index_from_commit(struct pnfs_layout_segment *lseg, u32 i)
return flseg->fh_array[i];
}
-static int filelayout_initiate_commit(struct nfs_write_data *data, int how)
+static int filelayout_initiate_commit(struct nfs_commit_data *data, int how)
{
struct pnfs_layout_segment *lseg = data->lseg;
struct nfs4_pnfs_ds *ds;
idx = calc_ds_index_from_commit(lseg, data->ds_commit_index);
ds = nfs4_fl_prepare_ds(lseg, idx);
if (!ds) {
- printk(KERN_ERR "NFS: %s: prepare_ds failed, use MDS\n",
- __func__);
- set_bit(lo_fail_bit(IOMODE_RW), &lseg->pls_layout->plh_flags);
- set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags);
prepare_to_resend_writes(data);
filelayout_commit_release(data);
return -EAGAIN;
}
- dprintk("%s ino %lu, how %d\n", __func__, data->inode->i_ino, how);
- data->write_done_cb = filelayout_commit_done_cb;
+ dprintk("%s ino %lu, how %d cl_count %d\n", __func__,
+ data->inode->i_ino, how, atomic_read(&ds->ds_clp->cl_count));
+ data->commit_done_cb = filelayout_commit_done_cb;
+ atomic_inc(&ds->ds_clp->cl_count);
data->ds_clp = ds->ds_clp;
fh = select_ds_fh_from_commit(lseg, data->ds_commit_index);
if (fh)
data->args.fh = fh;
- return nfs_initiate_commit(data, ds->ds_clp->cl_rpcclient,
- &filelayout_commit_call_ops, how);
-}
-
-/*
- * This is only useful while we are using whole file layouts.
- */
-static struct pnfs_layout_segment *
-find_only_write_lseg_locked(struct inode *inode)
-{
- struct pnfs_layout_segment *lseg;
-
- list_for_each_entry(lseg, &NFS_I(inode)->layout->plh_segs, pls_list)
- if (lseg->pls_range.iomode == IOMODE_RW)
- return lseg;
- return NULL;
-}
-
-static struct pnfs_layout_segment *find_only_write_lseg(struct inode *inode)
-{
- struct pnfs_layout_segment *rv;
-
- spin_lock(&inode->i_lock);
- rv = find_only_write_lseg_locked(inode);
- if (rv)
- get_lseg(rv);
- spin_unlock(&inode->i_lock);
- return rv;
+ return nfs_initiate_commit(ds->ds_clp->cl_rpcclient, data,
+ &filelayout_commit_call_ops, how,
+ RPC_TASK_SOFTCONN);
}
static int
-filelayout_scan_ds_commit_list(struct nfs4_fl_commit_bucket *bucket, int max,
- spinlock_t *lock)
+transfer_commit_list(struct list_head *src, struct list_head *dst,
+ struct nfs_commit_info *cinfo, int max)
{
- struct list_head *src = &bucket->written;
- struct list_head *dst = &bucket->committing;
struct nfs_page *req, *tmp;
int ret = 0;
list_for_each_entry_safe(req, tmp, src, wb_list) {
if (!nfs_lock_request(req))
continue;
- if (cond_resched_lock(lock))
+ kref_get(&req->wb_kref);
+ if (cond_resched_lock(cinfo->lock))
list_safe_reset_next(req, tmp, wb_list);
- nfs_request_remove_commit_list(req);
+ nfs_request_remove_commit_list(req, cinfo);
clear_bit(PG_COMMIT_TO_DS, &req->wb_flags);
nfs_list_add_request(req, dst);
ret++;
- if (ret == max)
+ if ((ret == max) && !cinfo->dreq)
break;
}
return ret;
}
+static int
+filelayout_scan_ds_commit_list(struct pnfs_commit_bucket *bucket,
+ struct nfs_commit_info *cinfo,
+ int max)
+{
+ struct list_head *src = &bucket->written;
+ struct list_head *dst = &bucket->committing;
+ int ret;
+
+ ret = transfer_commit_list(src, dst, cinfo, max);
+ if (ret) {
+ cinfo->ds->nwritten -= ret;
+ cinfo->ds->ncommitting += ret;
+ bucket->clseg = bucket->wlseg;
+ if (list_empty(src))
+ bucket->wlseg = NULL;
+ else
+ get_lseg(bucket->clseg);
+ }
+ return ret;
+}
+
/* Move reqs from written to committing lists, returning count of number moved.
- * Note called with i_lock held.
+ * Note called with cinfo->lock held.
*/
-static int filelayout_scan_commit_lists(struct inode *inode, int max,
- spinlock_t *lock)
+static int filelayout_scan_commit_lists(struct nfs_commit_info *cinfo,
+ int max)
{
- struct pnfs_layout_segment *lseg;
- struct nfs4_filelayout_segment *fl;
int i, rv = 0, cnt;
- lseg = find_only_write_lseg_locked(inode);
- if (!lseg)
- goto out_done;
- fl = FILELAYOUT_LSEG(lseg);
- if (fl->commit_through_mds)
- goto out_done;
- for (i = 0; i < fl->number_of_buckets && max != 0; i++) {
- cnt = filelayout_scan_ds_commit_list(&fl->commit_buckets[i],
- max, lock);
+ for (i = 0; i < cinfo->ds->nbuckets && max != 0; i++) {
+ cnt = filelayout_scan_ds_commit_list(&cinfo->ds->buckets[i],
+ cinfo, max);
max -= cnt;
rv += cnt;
}
-out_done:
return rv;
}
+/* Pull everything off the committing lists and dump into @dst */
+static void filelayout_recover_commit_reqs(struct list_head *dst,
+ struct nfs_commit_info *cinfo)
+{
+ struct pnfs_commit_bucket *b;
+ int i;
+
+ /* NOTE cinfo->lock is NOT held, relying on fact that this is
+ * only called on single thread per dreq.
+ * Can't take the lock because need to do put_lseg
+ */
+ for (i = 0, b = cinfo->ds->buckets; i < cinfo->ds->nbuckets; i++, b++) {
+ if (transfer_commit_list(&b->written, dst, cinfo, 0)) {
+ BUG_ON(!list_empty(&b->written));
+ put_lseg(b->wlseg);
+ b->wlseg = NULL;
+ }
+ }
+ cinfo->ds->nwritten = 0;
+}
+
static unsigned int
-alloc_ds_commits(struct inode *inode, struct list_head *list)
+alloc_ds_commits(struct nfs_commit_info *cinfo, struct list_head *list)
{
- struct pnfs_layout_segment *lseg;
- struct nfs4_filelayout_segment *fl;
- struct nfs_write_data *data;
+ struct pnfs_ds_commit_info *fl_cinfo;
+ struct pnfs_commit_bucket *bucket;
+ struct nfs_commit_data *data;
int i, j;
unsigned int nreq = 0;
- /* Won't need this when non-whole file layout segments are supported
- * instead we will use a pnfs_layout_hdr structure */
- lseg = find_only_write_lseg(inode);
- if (!lseg)
- return 0;
- fl = FILELAYOUT_LSEG(lseg);
- for (i = 0; i < fl->number_of_buckets; i++) {
- if (list_empty(&fl->commit_buckets[i].committing))
+ fl_cinfo = cinfo->ds;
+ bucket = fl_cinfo->buckets;
+ for (i = 0; i < fl_cinfo->nbuckets; i++, bucket++) {
+ if (list_empty(&bucket->committing))
continue;
data = nfs_commitdata_alloc();
if (!data)
break;
data->ds_commit_index = i;
- data->lseg = lseg;
+ data->lseg = bucket->clseg;
+ bucket->clseg = NULL;
list_add(&data->pages, list);
nreq++;
}
/* Clean up on error */
- for (j = i; j < fl->number_of_buckets; j++) {
- if (list_empty(&fl->commit_buckets[i].committing))
+ for (j = i; j < fl_cinfo->nbuckets; j++, bucket++) {
+ if (list_empty(&bucket->committing))
continue;
- nfs_retry_commit(&fl->commit_buckets[i].committing, lseg);
- put_lseg(lseg); /* associated with emptying bucket */
+ nfs_retry_commit(&bucket->committing, bucket->clseg, cinfo);
+ put_lseg(bucket->clseg);
+ bucket->clseg = NULL;
}
- put_lseg(lseg);
/* Caller will clean up entries put on list */
return nreq;
}
/* This follows nfs_commit_list pretty closely */
static int
filelayout_commit_pagelist(struct inode *inode, struct list_head *mds_pages,
- int how)
+ int how, struct nfs_commit_info *cinfo)
{
- struct nfs_write_data *data, *tmp;
+ struct nfs_commit_data *data, *tmp;
LIST_HEAD(list);
unsigned int nreq = 0;
list_add(&data->pages, &list);
nreq++;
} else
- nfs_retry_commit(mds_pages, NULL);
+ nfs_retry_commit(mds_pages, NULL, cinfo);
}
- nreq += alloc_ds_commits(inode, &list);
+ nreq += alloc_ds_commits(cinfo, &list);
if (nreq == 0) {
- nfs_commit_clear_lock(NFS_I(inode));
+ cinfo->completion_ops->error_cleanup(NFS_I(inode));
goto out;
}
- atomic_add(nreq, &NFS_I(inode)->commits_outstanding);
+ atomic_add(nreq, &cinfo->mds->rpcs_out);
list_for_each_entry_safe(data, tmp, &list, pages) {
list_del_init(&data->pages);
if (!data->lseg) {
- nfs_init_commit(data, mds_pages, NULL);
- nfs_initiate_commit(data, NFS_CLIENT(inode),
- data->mds_ops, how);
+ nfs_init_commit(data, mds_pages, NULL, cinfo);
+ nfs_initiate_commit(NFS_CLIENT(inode), data,
+ data->mds_ops, how, 0);
} else {
- nfs_init_commit(data, &FILELAYOUT_LSEG(data->lseg)->commit_buckets[data->ds_commit_index].committing, data->lseg);
+ struct pnfs_commit_bucket *buckets;
+
+ buckets = cinfo->ds->buckets;
+ nfs_init_commit(data, &buckets[data->ds_commit_index].committing, data->lseg, cinfo);
filelayout_initiate_commit(data, how);
}
}
out:
+ cinfo->ds->ncommitting = 0;
return PNFS_ATTEMPTED;
}
nfs4_fl_free_deviceid(container_of(d, struct nfs4_file_layout_dsaddr, id_node));
}
+static struct pnfs_layout_hdr *
+filelayout_alloc_layout_hdr(struct inode *inode, gfp_t gfp_flags)
+{
+ struct nfs4_filelayout *flo;
+
+ flo = kzalloc(sizeof(*flo), gfp_flags);
+ return &flo->generic_hdr;
+}
+
+static void
+filelayout_free_layout_hdr(struct pnfs_layout_hdr *lo)
+{
+ kfree(FILELAYOUT_FROM_HDR(lo));
+}
+
+static struct pnfs_ds_commit_info *
+filelayout_get_ds_info(struct inode *inode)
+{
+ struct pnfs_layout_hdr *layout = NFS_I(inode)->layout;
+
+ if (layout == NULL)
+ return NULL;
+ else
+ return &FILELAYOUT_FROM_HDR(layout)->commit_info;
+}
+
static struct pnfs_layoutdriver_type filelayout_type = {
.id = LAYOUT_NFSV4_1_FILES,
.name = "LAYOUT_NFSV4_1_FILES",
.owner = THIS_MODULE,
+ .alloc_layout_hdr = filelayout_alloc_layout_hdr,
+ .free_layout_hdr = filelayout_free_layout_hdr,
.alloc_lseg = filelayout_alloc_lseg,
.free_lseg = filelayout_free_lseg,
.pg_read_ops = &filelayout_pg_read_ops,
.pg_write_ops = &filelayout_pg_write_ops,
+ .get_ds_info = &filelayout_get_ds_info,
.mark_request_commit = filelayout_mark_request_commit,
.clear_request_commit = filelayout_clear_request_commit,
.scan_commit_lists = filelayout_scan_commit_lists,
+ .recover_commit_reqs = filelayout_recover_commit_reqs,
.commit_pagelist = filelayout_commit_pagelist,
.read_pagelist = filelayout_read_pagelist,
.write_pagelist = filelayout_write_pagelist,
#include "pnfs.h"
+/*
+ * Default data server connection timeout and retrans vaules.
+ * Set by module paramters dataserver_timeo and dataserver_retrans.
+ */
+#define NFS4_DEF_DS_TIMEO 60
+#define NFS4_DEF_DS_RETRANS 5
+
/*
* Field testing shows we need to support up to 4096 stripe indices.
* We store each index as a u8 (u32 on the wire) to keep the memory footprint
#define NFS4_PNFS_MAX_STRIPE_CNT 4096
#define NFS4_PNFS_MAX_MULTI_CNT 256 /* 256 fit into a u8 stripe_index */
+/* error codes for internal use */
+#define NFS4ERR_RESET_TO_MDS 12001
+
enum stripetype4 {
STRIPE_SPARSE = 1,
STRIPE_DENSE = 2
atomic_t ds_count;
};
-/* nfs4_file_layout_dsaddr flags */
-#define NFS4_DEVICE_ID_NEG_ENTRY 0x00000001
-
struct nfs4_file_layout_dsaddr {
struct nfs4_deviceid_node id_node;
- unsigned long flags;
u32 stripe_count;
u8 *stripe_indices;
u32 ds_num;
struct nfs4_pnfs_ds *ds_list[1];
};
-struct nfs4_fl_commit_bucket {
- struct list_head written;
- struct list_head committing;
-};
-
struct nfs4_filelayout_segment {
struct pnfs_layout_segment generic_hdr;
u32 stripe_type;
struct nfs4_file_layout_dsaddr *dsaddr; /* Point to GETDEVINFO data */
unsigned int num_fh;
struct nfs_fh **fh_array;
- struct nfs4_fl_commit_bucket *commit_buckets; /* Sort commits to ds */
- int number_of_buckets;
};
+struct nfs4_filelayout {
+ struct pnfs_layout_hdr generic_hdr;
+ struct pnfs_ds_commit_info commit_info;
+};
+
+static inline struct nfs4_filelayout *
+FILELAYOUT_FROM_HDR(struct pnfs_layout_hdr *lo)
+{
+ return container_of(lo, struct nfs4_filelayout, generic_hdr);
+}
+
static inline struct nfs4_filelayout_segment *
FILELAYOUT_LSEG(struct pnfs_layout_segment *lseg)
{
return &FILELAYOUT_LSEG(lseg)->dsaddr->id_node;
}
+static inline void
+filelayout_mark_devid_invalid(struct nfs4_deviceid_node *node)
+{
+ u32 *p = (u32 *)&node->deviceid;
+
+ printk(KERN_WARNING "NFS: Deviceid [%x%x%x%x] marked out of use.\n",
+ p[0], p[1], p[2], p[3]);
+
+ set_bit(NFS_DEVICEID_INVALID, &node->flags);
+}
+
+static inline bool
+filelayout_test_layout_invalid(struct pnfs_layout_hdr *lo)
+{
+ return test_bit(NFS_LAYOUT_INVALID, &lo->plh_flags);
+}
+
+static inline bool
+filelayout_test_devid_invalid(struct nfs4_deviceid_node *node)
+{
+ return test_bit(NFS_DEVICEID_INVALID, &node->flags);
+}
+
+static inline bool
+filelayout_reset_to_mds(struct pnfs_layout_segment *lseg)
+{
+ return filelayout_test_devid_invalid(FILELAYOUT_DEVID_NODE(lseg)) ||
+ filelayout_test_layout_invalid(lseg->pls_layout);
+}
+
extern struct nfs_fh *
nfs4_fl_select_ds_fh(struct pnfs_layout_segment *lseg, u32 j);
extern void nfs4_fl_free_deviceid(struct nfs4_file_layout_dsaddr *dsaddr);
struct nfs4_file_layout_dsaddr *
get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id, gfp_t gfp_flags);
+void nfs4_ds_disconnect(struct nfs_client *clp);
#endif /* FS_NFS_NFS4FILELAYOUT_H */
#include <linux/nfs_fs.h>
#include <linux/vmalloc.h>
+#include <linux/module.h>
#include "internal.h"
#include "nfs4filelayout.h"
#define NFSDBG_FACILITY NFSDBG_PNFS_LD
+static unsigned int dataserver_timeo = NFS4_DEF_DS_TIMEO;
+static unsigned int dataserver_retrans = NFS4_DEF_DS_RETRANS;
+
/*
* Data server cache
*
return NULL;
}
+/*
+ * Lookup DS by nfs_client pointer. Zero data server client pointer
+ */
+void nfs4_ds_disconnect(struct nfs_client *clp)
+{
+ struct nfs4_pnfs_ds *ds;
+ struct nfs_client *found = NULL;
+
+ dprintk("%s clp %p\n", __func__, clp);
+ spin_lock(&nfs4_ds_cache_lock);
+ list_for_each_entry(ds, &nfs4_data_server_cache, ds_node)
+ if (ds->ds_clp && ds->ds_clp == clp) {
+ found = ds->ds_clp;
+ ds->ds_clp = NULL;
+ }
+ spin_unlock(&nfs4_ds_cache_lock);
+ if (found) {
+ set_bit(NFS_CS_STOP_RENEW, &clp->cl_res_state);
+ nfs_put_client(clp);
+ }
+}
+
/*
* Create an rpc connection to the nfs4_pnfs_ds data server
* Currently only supports IPv4 and IPv6 addresses
__func__, ds->ds_remotestr, da->da_remotestr);
clp = nfs4_set_ds_client(mds_srv->nfs_client,
- (struct sockaddr *)&da->da_addr,
- da->da_addrlen, IPPROTO_TCP);
+ (struct sockaddr *)&da->da_addr,
+ da->da_addrlen, IPPROTO_TCP,
+ dataserver_timeo, dataserver_retrans);
if (!IS_ERR(clp))
break;
}
goto out;
}
- if ((clp->cl_exchange_flags & EXCHGID4_FLAG_MASK_PNFS) != 0) {
- if (!is_ds_client(clp)) {
- status = -ENODEV;
- goto out_put;
- }
- ds->ds_clp = clp;
- dprintk("%s [existing] server=%s\n", __func__,
- ds->ds_remotestr);
- goto out;
- }
-
- /*
- * Do not set NFS_CS_CHECK_LEASE_TIME instead set the DS lease to
- * be equal to the MDS lease. Renewal is scheduled in create_session.
- */
- spin_lock(&mds_srv->nfs_client->cl_lock);
- clp->cl_lease_time = mds_srv->nfs_client->cl_lease_time;
- spin_unlock(&mds_srv->nfs_client->cl_lock);
- clp->cl_last_renewal = jiffies;
-
- /* New nfs_client */
- status = nfs4_init_ds_session(clp);
+ status = nfs4_init_ds_session(clp, mds_srv->nfs_client->cl_lease_time);
if (status)
goto out_put;
mp_count = be32_to_cpup(p); /* multipath count */
for (j = 0; j < mp_count; j++) {
- da = decode_ds_addr(NFS_SERVER(ino)->nfs_client->net,
+ da = decode_ds_addr(NFS_SERVER(ino)->nfs_client->cl_net,
&stream, gfp_flags);
if (da)
list_add_tail(&da->da_node, &dsaddrs);
return flseg->fh_array[i];
}
-static void
-filelayout_mark_devid_negative(struct nfs4_file_layout_dsaddr *dsaddr,
- int err, const char *ds_remotestr)
-{
- u32 *p = (u32 *)&dsaddr->id_node.deviceid;
-
- printk(KERN_ERR "NFS: data server %s connection error %d."
- " Deviceid [%x%x%x%x] marked out of use.\n",
- ds_remotestr, err, p[0], p[1], p[2], p[3]);
-
- spin_lock(&nfs4_ds_cache_lock);
- dsaddr->flags |= NFS4_DEVICE_ID_NEG_ENTRY;
- spin_unlock(&nfs4_ds_cache_lock);
-}
-
struct nfs4_pnfs_ds *
nfs4_fl_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx)
{
struct nfs4_file_layout_dsaddr *dsaddr = FILELAYOUT_LSEG(lseg)->dsaddr;
struct nfs4_pnfs_ds *ds = dsaddr->ds_list[ds_idx];
+ struct nfs4_deviceid_node *devid = FILELAYOUT_DEVID_NODE(lseg);
+
+ if (filelayout_test_devid_invalid(devid))
+ return NULL;
if (ds == NULL) {
printk(KERN_ERR "NFS: %s: No data server for offset index %d\n",
__func__, ds_idx);
- return NULL;
+ goto mark_dev_invalid;
}
if (!ds->ds_clp) {
struct nfs_server *s = NFS_SERVER(lseg->pls_layout->plh_inode);
int err;
- if (dsaddr->flags & NFS4_DEVICE_ID_NEG_ENTRY) {
- /* Already tried to connect, don't try again */
- dprintk("%s Deviceid marked out of use\n", __func__);
- return NULL;
- }
err = nfs4_ds_connect(s, ds);
- if (err) {
- filelayout_mark_devid_negative(dsaddr, err,
- ds->ds_remotestr);
- return NULL;
- }
+ if (err)
+ goto mark_dev_invalid;
}
return ds;
+
+mark_dev_invalid:
+ filelayout_mark_devid_invalid(devid);
+ return NULL;
}
+
+module_param(dataserver_retrans, uint, 0644);
+MODULE_PARM_DESC(dataserver_retrans, "The number of times the NFSv4.1 client "
+ "retries a request before it attempts further "
+ " recovery action.");
+module_param(dataserver_timeo, uint, 0644);
+MODULE_PARM_DESC(dataserver_timeo, "The time (in tenths of a second) the "
+ "NFSv4.1 client waits for a response from a "
+ " data server before it retries an NFS request.");
return ret;
}
+rpc_authflavor_t nfs_find_best_sec(struct nfs4_secinfo_flavors *flavors)
+{
+ struct gss_api_mech *mech;
+ struct xdr_netobj oid;
+ int i;
+ rpc_authflavor_t pseudoflavor = RPC_AUTH_UNIX;
+
+ for (i = 0; i < flavors->num_flavors; i++) {
+ struct nfs4_secinfo_flavor *flavor;
+ flavor = &flavors->flavors[i];
+
+ if (flavor->flavor == RPC_AUTH_NULL || flavor->flavor == RPC_AUTH_UNIX) {
+ pseudoflavor = flavor->flavor;
+ break;
+ } else if (flavor->flavor == RPC_AUTH_GSS) {
+ oid.len = flavor->gss.sec_oid4.len;
+ oid.data = flavor->gss.sec_oid4.data;
+ mech = gss_mech_get_by_OID(&oid);
+ if (!mech)
+ continue;
+ pseudoflavor = gss_svc_to_pseudoflavor(mech, flavor->gss.service);
+ gss_mech_put(mech);
+ break;
+ }
+ }
+
+ return pseudoflavor;
+}
+
static rpc_authflavor_t nfs4_negotiate_security(struct inode *inode, struct qstr *name)
{
struct page *page;
rpc_authflavor_t flavor;
flavor = nfs4_negotiate_security(inode, name);
- if (flavor < 0)
+ if ((int)flavor < 0)
return ERR_PTR(flavor);
clone = rpc_clone_client(clnt);
* @dentry - dentry of referral
*
*/
-struct vfsmount *nfs_do_refmount(struct rpc_clnt *client, struct dentry *dentry)
+static struct vfsmount *nfs_do_refmount(struct rpc_clnt *client, struct dentry *dentry)
{
struct vfsmount *mnt = ERR_PTR(-ENOMEM);
struct dentry *parent;
dprintk("%s: done\n", __func__);
return mnt;
}
+
+struct vfsmount *nfs4_submount(struct nfs_server *server, struct dentry *dentry,
+ struct nfs_fh *fh, struct nfs_fattr *fattr)
+{
+ struct dentry *parent = dget_parent(dentry);
+ struct rpc_clnt *client;
+ struct vfsmount *mnt;
+
+ /* Look it up again to get its attributes and sec flavor */
+ client = nfs4_proc_lookup_mountpoint(parent->d_inode, &dentry->d_name, fh, fattr);
+ dput(parent);
+ if (IS_ERR(client))
+ return ERR_CAST(client);
+
+ if (fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL)
+ mnt = nfs_do_refmount(client, dentry);
+ else
+ mnt = nfs_do_submount(dentry, fh, fattr, client->cl_auth->au_flavor);
+
+ rpc_shutdown_client(client);
+ return mnt;
+}
#include "iostat.h"
#include "callback.h"
#include "pnfs.h"
+#include "netns.h"
#define NFSDBG_FACILITY NFSDBG_PROC
static int nfs4_do_fsinfo(struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *);
static int nfs4_async_handle_error(struct rpc_task *, const struct nfs_server *, struct nfs4_state *);
static void nfs_fixup_referral_attributes(struct nfs_fattr *fattr);
+static int nfs4_proc_getattr(struct nfs_server *, struct nfs_fh *, struct nfs_fattr *);
static int _nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr);
static int nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred,
struct nfs_fattr *fattr, struct iattr *sattr,
case -NFS4ERR_BADOWNER:
case -NFS4ERR_BADNAME:
return -EINVAL;
+ case -NFS4ERR_SHARE_DENIED:
+ return -EACCES;
default:
dprintk("%s could not handle NFSv4 error %d\n",
__func__, -err);
case -NFS4ERR_SEQ_MISORDERED:
dprintk("%s ERROR: %d Reset session\n", __func__,
errorcode);
- nfs4_schedule_session_recovery(clp->cl_session);
+ nfs4_schedule_session_recovery(clp->cl_session, errorcode);
exception->retry = 1;
break;
#endif /* defined(CONFIG_NFS_V4_1) */
struct nfs_inode *nfsi = NFS_I(dir);
spin_lock(&dir->i_lock);
- nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_DATA;
+ nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
if (!cinfo->atomic || cinfo->before != dir->i_version)
nfs_force_lookup_revalidate(dir);
dir->i_version = cinfo->after;
struct nfs4_string owner_name;
struct nfs4_string group_name;
struct nfs_fattr f_attr;
- struct nfs_fattr dir_attr;
struct dentry *dir;
struct dentry *dentry;
struct nfs4_state_owner *owner;
static void nfs4_init_opendata_res(struct nfs4_opendata *p)
{
p->o_res.f_attr = &p->f_attr;
- p->o_res.dir_attr = &p->dir_attr;
p->o_res.seqid = p->o_arg.seqid;
p->c_res.seqid = p->c_arg.seqid;
p->o_res.server = p->o_arg.server;
nfs_fattr_init(&p->f_attr);
- nfs_fattr_init(&p->dir_attr);
nfs_fattr_init_names(&p->f_attr, &p->owner_name, &p->group_name);
}
p->o_arg.name = &dentry->d_name;
p->o_arg.server = server;
p->o_arg.bitmask = server->attr_bitmask;
- p->o_arg.dir_bitmask = server->cache_consistency_bitmask;
p->o_arg.claim = NFS4_OPEN_CLAIM_NULL;
if (attrs != NULL && attrs->ia_valid != 0) {
__be32 verf[2];
case -NFS4ERR_BAD_HIGH_SLOT:
case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
case -NFS4ERR_DEADSESSION:
- nfs4_schedule_session_recovery(server->nfs_client->cl_session);
+ nfs4_schedule_session_recovery(server->nfs_client->cl_session, err);
goto out;
case -NFS4ERR_STALE_CLIENTID:
case -NFS4ERR_STALE_STATEID:
nfs_fattr_map_and_free_names(NFS_SERVER(dir), &data->f_attr);
- nfs_refresh_inode(dir, o_res->dir_attr);
-
if (o_res->rflags & NFS4_OPEN_RESULT_CONFIRM) {
status = _nfs4_proc_open_confirm(data);
if (status != 0)
nfs_fattr_map_and_free_names(server, &data->f_attr);
- if (o_arg->open_flags & O_CREAT) {
+ if (o_arg->open_flags & O_CREAT)
update_changeattr(dir, &o_res->cinfo);
- nfs_post_op_update_inode(dir, o_res->dir_attr);
- } else
- nfs_refresh_inode(dir, o_res->dir_attr);
if ((o_res->rflags & NFS4_OPEN_RESULT_LOCKTYPE_POSIX) == 0)
server->caps &= ~NFS_CAP_POSIX_LOCK;
if(o_res->rflags & NFS4_OPEN_RESULT_CONFIRM) {
/*
* Returns a referenced nfs4_state
*/
-static int _nfs4_do_open(struct inode *dir, struct dentry *dentry, fmode_t fmode, int flags, struct iattr *sattr, struct rpc_cred *cred, struct nfs4_state **res)
+static int _nfs4_do_open(struct inode *dir,
+ struct dentry *dentry,
+ fmode_t fmode,
+ int flags,
+ struct iattr *sattr,
+ struct rpc_cred *cred,
+ struct nfs4_state **res,
+ struct nfs4_threshold **ctx_th)
{
struct nfs4_state_owner *sp;
struct nfs4_state *state = NULL;
if (opendata == NULL)
goto err_put_state_owner;
+ if (ctx_th && server->attr_bitmask[2] & FATTR4_WORD2_MDSTHRESHOLD) {
+ opendata->f_attr.mdsthreshold = pnfs_mdsthreshold_alloc();
+ if (!opendata->f_attr.mdsthreshold)
+ goto err_opendata_put;
+ }
if (dentry->d_inode != NULL)
opendata->state = nfs4_get_open_state(dentry->d_inode, sp);
nfs_setattr_update_inode(state->inode, sattr);
nfs_post_op_update_inode(state->inode, opendata->o_res.f_attr);
}
+
+ if (pnfs_use_threshold(ctx_th, opendata->f_attr.mdsthreshold, server))
+ *ctx_th = opendata->f_attr.mdsthreshold;
+ else
+ kfree(opendata->f_attr.mdsthreshold);
+ opendata->f_attr.mdsthreshold = NULL;
+
nfs4_opendata_put(opendata);
nfs4_put_state_owner(sp);
*res = state;
return 0;
err_opendata_put:
+ kfree(opendata->f_attr.mdsthreshold);
nfs4_opendata_put(opendata);
err_put_state_owner:
nfs4_put_state_owner(sp);
}
-static struct nfs4_state *nfs4_do_open(struct inode *dir, struct dentry *dentry, fmode_t fmode, int flags, struct iattr *sattr, struct rpc_cred *cred)
+static struct nfs4_state *nfs4_do_open(struct inode *dir,
+ struct dentry *dentry,
+ fmode_t fmode,
+ int flags,
+ struct iattr *sattr,
+ struct rpc_cred *cred,
+ struct nfs4_threshold **ctx_th)
{
struct nfs4_exception exception = { };
struct nfs4_state *res;
int status;
do {
- status = _nfs4_do_open(dir, dentry, fmode, flags, sattr, cred, &res);
+ status = _nfs4_do_open(dir, dentry, fmode, flags, sattr, cred,
+ &res, ctx_th);
if (status == 0)
break;
/* NOTE: BAD_SEQID means the server and client disagree about the
struct nfs4_state *state;
/* Protect against concurrent sillydeletes */
- state = nfs4_do_open(dir, ctx->dentry, ctx->mode, open_flags, attr, ctx->cred);
+ state = nfs4_do_open(dir, ctx->dentry, ctx->mode, open_flags, attr,
+ ctx->cred, &ctx->mdsthreshold);
if (IS_ERR(state))
return ERR_CAST(state);
ctx->state = state;
/*
* get the file handle for the "/" directory on the server
*/
-static int nfs4_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
- struct nfs_fsinfo *info)
+int nfs4_proc_get_rootfh(struct nfs_server *server, struct nfs_fh *fhandle,
+ struct nfs_fsinfo *info)
{
int minor_version = server->nfs_client->cl_minorversion;
int status = nfs4_lookup_root(server, fhandle, info);
return nfs4_map_errors(status);
}
+static int nfs4_proc_get_root(struct nfs_server *server, struct nfs_fh *mntfh,
+ struct nfs_fsinfo *info)
+{
+ int error;
+ struct nfs_fattr *fattr = info->fattr;
+
+ error = nfs4_server_capabilities(server, mntfh);
+ if (error < 0) {
+ dprintk("nfs4_get_root: getcaps error = %d\n", -error);
+ return error;
+ }
+
+ error = nfs4_proc_getattr(server, mntfh, fattr);
+ if (error < 0) {
+ dprintk("nfs4_get_root: getattr error = %d\n", -error);
+ return error;
+ }
+
+ if (fattr->valid & NFS_ATTR_FATTR_FSID &&
+ !nfs_fsid_equal(&server->fsid, &fattr->fsid))
+ memcpy(&server->fsid, &fattr->fsid, sizeof(server->fsid));
+
+ return error;
+}
+
/*
* Get locations and (maybe) other attributes of a referral.
* Note that we'll actually follow the referral later when
return err;
}
-static int nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, struct qstr *name,
+static int nfs4_proc_lookup(struct inode *dir, struct qstr *name,
struct nfs_fh *fhandle, struct nfs_fattr *fattr)
{
int status;
fmode = ctx->mode;
}
sattr->ia_mode &= ~current_umask();
- state = nfs4_do_open(dir, de, fmode, flags, sattr, cred);
+ state = nfs4_do_open(dir, de, fmode, flags, sattr, cred, NULL);
d_drop(dentry);
if (IS_ERR(state)) {
status = PTR_ERR(state);
struct nfs_removeargs args = {
.fh = NFS_FH(dir),
.name = *name,
- .bitmask = server->attr_bitmask,
};
struct nfs_removeres res = {
.server = server,
.rpc_argp = &args,
.rpc_resp = &res,
};
- int status = -ENOMEM;
-
- res.dir_attr = nfs_alloc_fattr();
- if (res.dir_attr == NULL)
- goto out;
+ int status;
status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 1);
- if (status == 0) {
+ if (status == 0)
update_changeattr(dir, &res.cinfo);
- nfs_post_op_update_inode(dir, res.dir_attr);
- }
- nfs_free_fattr(res.dir_attr);
-out:
return status;
}
struct nfs_removeargs *args = msg->rpc_argp;
struct nfs_removeres *res = msg->rpc_resp;
- args->bitmask = server->cache_consistency_bitmask;
res->server = server;
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_REMOVE];
nfs41_init_sequence(&args->seq_args, &res->seq_res, 1);
if (nfs4_async_handle_error(task, res->server, NULL) == -EAGAIN)
return 0;
update_changeattr(dir, &res->cinfo);
- nfs_post_op_update_inode(dir, res->dir_attr);
return 1;
}
struct nfs_renameres *res = msg->rpc_resp;
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_RENAME];
- arg->bitmask = server->attr_bitmask;
res->server = server;
nfs41_init_sequence(&arg->seq_args, &res->seq_res, 1);
}
return 0;
update_changeattr(old_dir, &res->old_cinfo);
- nfs_post_op_update_inode(old_dir, res->old_fattr);
update_changeattr(new_dir, &res->new_cinfo);
- nfs_post_op_update_inode(new_dir, res->new_fattr);
return 1;
}
.new_dir = NFS_FH(new_dir),
.old_name = old_name,
.new_name = new_name,
- .bitmask = server->attr_bitmask,
};
struct nfs_renameres res = {
.server = server,
};
int status = -ENOMEM;
- res.old_fattr = nfs_alloc_fattr();
- res.new_fattr = nfs_alloc_fattr();
- if (res.old_fattr == NULL || res.new_fattr == NULL)
- goto out;
-
status = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1);
if (!status) {
update_changeattr(old_dir, &res.old_cinfo);
- nfs_post_op_update_inode(old_dir, res.old_fattr);
update_changeattr(new_dir, &res.new_cinfo);
- nfs_post_op_update_inode(new_dir, res.new_fattr);
}
-out:
- nfs_free_fattr(res.new_fattr);
- nfs_free_fattr(res.old_fattr);
return status;
}
int status = -ENOMEM;
res.fattr = nfs_alloc_fattr();
- res.dir_attr = nfs_alloc_fattr();
- if (res.fattr == NULL || res.dir_attr == NULL)
+ if (res.fattr == NULL)
goto out;
status = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1);
if (!status) {
update_changeattr(dir, &res.cinfo);
- nfs_post_op_update_inode(dir, res.dir_attr);
nfs_post_op_update_inode(inode, res.fattr);
}
out:
- nfs_free_fattr(res.dir_attr);
nfs_free_fattr(res.fattr);
return status;
}
struct nfs4_create_res res;
struct nfs_fh fh;
struct nfs_fattr fattr;
- struct nfs_fattr dir_fattr;
};
static struct nfs4_createdata *nfs4_alloc_createdata(struct inode *dir,
data->res.server = server;
data->res.fh = &data->fh;
data->res.fattr = &data->fattr;
- data->res.dir_fattr = &data->dir_fattr;
nfs_fattr_init(data->res.fattr);
- nfs_fattr_init(data->res.dir_fattr);
}
return data;
}
&data->arg.seq_args, &data->res.seq_res, 1);
if (status == 0) {
update_changeattr(dir, &data->res.dir_cinfo);
- nfs_post_op_update_inode(dir, data->res.dir_fattr);
status = nfs_instantiate(dentry, data->res.fh, data->res.fattr);
}
return status;
void __nfs4_read_done_cb(struct nfs_read_data *data)
{
- nfs_invalidate_atime(data->inode);
+ nfs_invalidate_atime(data->header->inode);
}
static int nfs4_read_done_cb(struct rpc_task *task, struct nfs_read_data *data)
{
- struct nfs_server *server = NFS_SERVER(data->inode);
+ struct nfs_server *server = NFS_SERVER(data->header->inode);
if (nfs4_async_handle_error(task, server, data->args.context->state) == -EAGAIN) {
rpc_restart_call_prepare(task);
static void nfs4_proc_read_rpc_prepare(struct rpc_task *task, struct nfs_read_data *data)
{
- if (nfs4_setup_sequence(NFS_SERVER(data->inode),
+ if (nfs4_setup_sequence(NFS_SERVER(data->header->inode),
&data->args.seq_args,
&data->res.seq_res,
task))
rpc_call_start(task);
}
-/* Reset the the nfs_read_data to send the read to the MDS. */
-void nfs4_reset_read(struct rpc_task *task, struct nfs_read_data *data)
-{
- dprintk("%s Reset task for i/o through\n", __func__);
- put_lseg(data->lseg);
- data->lseg = NULL;
- /* offsets will differ in the dense stripe case */
- data->args.offset = data->mds_offset;
- data->ds_clp = NULL;
- data->args.fh = NFS_FH(data->inode);
- data->read_done_cb = nfs4_read_done_cb;
- task->tk_ops = data->mds_ops;
- rpc_task_reset_client(task, NFS_CLIENT(data->inode));
-}
-EXPORT_SYMBOL_GPL(nfs4_reset_read);
-
static int nfs4_write_done_cb(struct rpc_task *task, struct nfs_write_data *data)
{
- struct inode *inode = data->inode;
+ struct inode *inode = data->header->inode;
if (nfs4_async_handle_error(task, NFS_SERVER(inode), data->args.context->state) == -EAGAIN) {
rpc_restart_call_prepare(task);
}
if (task->tk_status >= 0) {
renew_lease(NFS_SERVER(inode), data->timestamp);
- nfs_post_op_update_inode_force_wcc(inode, data->res.fattr);
+ nfs_post_op_update_inode_force_wcc(inode, &data->fattr);
}
return 0;
}
nfs4_write_done_cb(task, data);
}
-/* Reset the the nfs_write_data to send the write to the MDS. */
-void nfs4_reset_write(struct rpc_task *task, struct nfs_write_data *data)
+static
+bool nfs4_write_need_cache_consistency_data(const struct nfs_write_data *data)
{
- dprintk("%s Reset task for i/o through\n", __func__);
- put_lseg(data->lseg);
- data->lseg = NULL;
- data->ds_clp = NULL;
- data->write_done_cb = nfs4_write_done_cb;
- data->args.fh = NFS_FH(data->inode);
- data->args.bitmask = data->res.server->cache_consistency_bitmask;
- data->args.offset = data->mds_offset;
- data->res.fattr = &data->fattr;
- task->tk_ops = data->mds_ops;
- rpc_task_reset_client(task, NFS_CLIENT(data->inode));
+ const struct nfs_pgio_header *hdr = data->header;
+
+ /* Don't request attributes for pNFS or O_DIRECT writes */
+ if (data->ds_clp != NULL || hdr->dreq != NULL)
+ return false;
+ /* Otherwise, request attributes if and only if we don't hold
+ * a delegation
+ */
+ return nfs_have_delegation(hdr->inode, FMODE_READ) == 0;
}
-EXPORT_SYMBOL_GPL(nfs4_reset_write);
static void nfs4_proc_write_setup(struct nfs_write_data *data, struct rpc_message *msg)
{
- struct nfs_server *server = NFS_SERVER(data->inode);
+ struct nfs_server *server = NFS_SERVER(data->header->inode);
- if (data->lseg) {
+ if (!nfs4_write_need_cache_consistency_data(data)) {
data->args.bitmask = NULL;
data->res.fattr = NULL;
} else
data->args.bitmask = server->cache_consistency_bitmask;
+
if (!data->write_done_cb)
data->write_done_cb = nfs4_write_done_cb;
data->res.server = server;
}
static void nfs4_proc_write_rpc_prepare(struct rpc_task *task, struct nfs_write_data *data)
+{
+ if (nfs4_setup_sequence(NFS_SERVER(data->header->inode),
+ &data->args.seq_args,
+ &data->res.seq_res,
+ task))
+ return;
+ rpc_call_start(task);
+}
+
+static void nfs4_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data)
{
if (nfs4_setup_sequence(NFS_SERVER(data->inode),
&data->args.seq_args,
rpc_call_start(task);
}
-static int nfs4_commit_done_cb(struct rpc_task *task, struct nfs_write_data *data)
+static int nfs4_commit_done_cb(struct rpc_task *task, struct nfs_commit_data *data)
{
struct inode *inode = data->inode;
rpc_restart_call_prepare(task);
return -EAGAIN;
}
- nfs_refresh_inode(inode, data->res.fattr);
return 0;
}
-static int nfs4_commit_done(struct rpc_task *task, struct nfs_write_data *data)
+static int nfs4_commit_done(struct rpc_task *task, struct nfs_commit_data *data)
{
if (!nfs4_sequence_done(task, &data->res.seq_res))
return -EAGAIN;
- return data->write_done_cb(task, data);
+ return data->commit_done_cb(task, data);
}
-static void nfs4_proc_commit_setup(struct nfs_write_data *data, struct rpc_message *msg)
+static void nfs4_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg)
{
struct nfs_server *server = NFS_SERVER(data->inode);
- if (data->lseg) {
- data->args.bitmask = NULL;
- data->res.fattr = NULL;
- } else
- data->args.bitmask = server->cache_consistency_bitmask;
- if (!data->write_done_cb)
- data->write_done_cb = nfs4_commit_done_cb;
+ if (data->commit_done_cb == NULL)
+ data->commit_done_cb = nfs4_commit_done_cb;
data->res.server = server;
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_COMMIT];
nfs41_init_sequence(&data->args.seq_args, &data->res.seq_res, 1);
case -NFS4ERR_SEQ_MISORDERED:
dprintk("%s ERROR %d, Reset session\n", __func__,
task->tk_status);
- nfs4_schedule_session_recovery(clp->cl_session);
+ nfs4_schedule_session_recovery(clp->cl_session, task->tk_status);
task->tk_status = 0;
return -EAGAIN;
#endif /* CONFIG_NFS_V4_1 */
return -EAGAIN;
}
-static void nfs4_construct_boot_verifier(struct nfs_client *clp,
- nfs4_verifier *bootverf)
+static void nfs4_init_boot_verifier(const struct nfs_client *clp,
+ nfs4_verifier *bootverf)
{
__be32 verf[2];
- verf[0] = htonl((u32)clp->cl_boot_time.tv_sec);
- verf[1] = htonl((u32)clp->cl_boot_time.tv_nsec);
+ if (test_bit(NFS4CLNT_PURGE_STATE, &clp->cl_state)) {
+ /* An impossible timestamp guarantees this value
+ * will never match a generated boot time. */
+ verf[0] = 0;
+ verf[1] = (__be32)(NSEC_PER_SEC + 1);
+ } else {
+ struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);
+ verf[0] = (__be32)nn->boot_time.tv_sec;
+ verf[1] = (__be32)nn->boot_time.tv_nsec;
+ }
memcpy(bootverf->data, verf, sizeof(bootverf->data));
}
int loop = 0;
int status;
- nfs4_construct_boot_verifier(clp, &sc_verifier);
+ nfs4_init_boot_verifier(clp, &sc_verifier);
for(;;) {
rcu_read_lock();
nfs41_init_sequence(&data->args.seq_args, &data->res.seq_res, 1);
data->args.fhandle = &data->fh;
data->args.stateid = &data->stateid;
- data->args.bitmask = server->attr_bitmask;
+ data->args.bitmask = server->cache_consistency_bitmask;
nfs_copy_fh(&data->fh, NFS_FH(inode));
nfs4_stateid_copy(&data->stateid, stateid);
data->res.fattr = &data->fattr;
if (status != 0)
goto out;
status = data->rpc_status;
- if (status != 0)
- goto out;
- nfs_refresh_inode(inode, &data->fattr);
+ if (status == 0)
+ nfs_post_op_update_inode_force_wcc(inode, &data->fattr);
+ else
+ nfs_refresh_inode(inode, &data->fattr);
out:
rpc_put_task(task);
return status;
case -NFS4ERR_BAD_HIGH_SLOT:
case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
case -NFS4ERR_DEADSESSION:
- nfs4_schedule_session_recovery(server->nfs_client->cl_session);
+ nfs4_schedule_session_recovery(server->nfs_client->cl_session, err);
goto out;
case -ERESTARTSYS:
/*
}
static bool
-nfs41_same_server_scope(struct server_scope *a, struct server_scope *b)
+nfs41_same_server_scope(struct nfs41_server_scope *a,
+ struct nfs41_server_scope *b)
{
if (a->server_scope_sz == b->server_scope_sz &&
memcmp(a->server_scope, b->server_scope, a->server_scope_sz) == 0)
return false;
}
+/*
+ * nfs4_proc_bind_conn_to_session()
+ *
+ * The 4.1 client currently uses the same TCP connection for the
+ * fore and backchannel.
+ */
+int nfs4_proc_bind_conn_to_session(struct nfs_client *clp, struct rpc_cred *cred)
+{
+ int status;
+ struct nfs41_bind_conn_to_session_res res;
+ struct rpc_message msg = {
+ .rpc_proc =
+ &nfs4_procedures[NFSPROC4_CLNT_BIND_CONN_TO_SESSION],
+ .rpc_argp = clp,
+ .rpc_resp = &res,
+ .rpc_cred = cred,
+ };
+
+ dprintk("--> %s\n", __func__);
+ BUG_ON(clp == NULL);
+
+ res.session = kzalloc(sizeof(struct nfs4_session), GFP_NOFS);
+ if (unlikely(res.session == NULL)) {
+ status = -ENOMEM;
+ goto out;
+ }
+
+ status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
+ if (status == 0) {
+ if (memcmp(res.session->sess_id.data,
+ clp->cl_session->sess_id.data, NFS4_MAX_SESSIONID_LEN)) {
+ dprintk("NFS: %s: Session ID mismatch\n", __func__);
+ status = -EIO;
+ goto out_session;
+ }
+ if (res.dir != NFS4_CDFS4_BOTH) {
+ dprintk("NFS: %s: Unexpected direction from server\n",
+ __func__);
+ status = -EIO;
+ goto out_session;
+ }
+ if (res.use_conn_in_rdma_mode) {
+ dprintk("NFS: %s: Server returned RDMA mode = true\n",
+ __func__);
+ status = -EIO;
+ goto out_session;
+ }
+ }
+out_session:
+ kfree(res.session);
+out:
+ dprintk("<-- %s status= %d\n", __func__, status);
+ return status;
+}
+
/*
* nfs4_proc_exchange_id()
*
.flags = EXCHGID4_FLAG_SUPP_MOVED_REFER,
};
struct nfs41_exchange_id_res res = {
- .client = clp,
+ 0
};
int status;
struct rpc_message msg = {
dprintk("--> %s\n", __func__);
BUG_ON(clp == NULL);
- nfs4_construct_boot_verifier(clp, &verifier);
+ nfs4_init_boot_verifier(clp, &verifier);
args.id_len = scnprintf(args.id, sizeof(args.id),
"%s/%s/%u",
clp->cl_rpcclient->cl_nodename,
clp->cl_rpcclient->cl_auth->au_flavor);
- res.server_scope = kzalloc(sizeof(struct server_scope), GFP_KERNEL);
- if (unlikely(!res.server_scope)) {
+ res.server_owner = kzalloc(sizeof(struct nfs41_server_owner),
+ GFP_NOFS);
+ if (unlikely(res.server_owner == NULL)) {
status = -ENOMEM;
goto out;
}
- res.impl_id = kzalloc(sizeof(struct nfs41_impl_id), GFP_KERNEL);
- if (unlikely(!res.impl_id)) {
+ res.server_scope = kzalloc(sizeof(struct nfs41_server_scope),
+ GFP_NOFS);
+ if (unlikely(res.server_scope == NULL)) {
+ status = -ENOMEM;
+ goto out_server_owner;
+ }
+
+ res.impl_id = kzalloc(sizeof(struct nfs41_impl_id), GFP_NOFS);
+ if (unlikely(res.impl_id == NULL)) {
status = -ENOMEM;
goto out_server_scope;
}
status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
- if (!status)
- status = nfs4_check_cl_exchange_flags(clp->cl_exchange_flags);
+ if (status == 0)
+ status = nfs4_check_cl_exchange_flags(res.flags);
+
+ if (status == 0) {
+ clp->cl_clientid = res.clientid;
+ clp->cl_exchange_flags = (res.flags & ~EXCHGID4_FLAG_CONFIRMED_R);
+ if (!(res.flags & EXCHGID4_FLAG_CONFIRMED_R))
+ clp->cl_seqid = res.seqid;
+
+ kfree(clp->cl_serverowner);
+ clp->cl_serverowner = res.server_owner;
+ res.server_owner = NULL;
- if (!status) {
/* use the most recent implementation id */
- kfree(clp->impl_id);
- clp->impl_id = res.impl_id;
- } else
- kfree(res.impl_id);
+ kfree(clp->cl_implid);
+ clp->cl_implid = res.impl_id;
- if (!status) {
- if (clp->server_scope &&
- !nfs41_same_server_scope(clp->server_scope,
+ if (clp->cl_serverscope != NULL &&
+ !nfs41_same_server_scope(clp->cl_serverscope,
res.server_scope)) {
dprintk("%s: server_scope mismatch detected\n",
__func__);
set_bit(NFS4CLNT_SERVER_SCOPE_MISMATCH, &clp->cl_state);
- kfree(clp->server_scope);
- clp->server_scope = NULL;
+ kfree(clp->cl_serverscope);
+ clp->cl_serverscope = NULL;
}
- if (!clp->server_scope) {
- clp->server_scope = res.server_scope;
+ if (clp->cl_serverscope == NULL) {
+ clp->cl_serverscope = res.server_scope;
goto out;
}
- }
+ } else
+ kfree(res.impl_id);
+out_server_owner:
+ kfree(res.server_owner);
out_server_scope:
kfree(res.server_scope);
out:
- if (clp->impl_id)
+ if (clp->cl_implid != NULL)
dprintk("%s: Server Implementation ID: "
"domain: %s, name: %s, date: %llu,%u\n",
- __func__, clp->impl_id->domain, clp->impl_id->name,
- clp->impl_id->date.seconds,
- clp->impl_id->date.nseconds);
+ __func__, clp->cl_implid->domain, clp->cl_implid->name,
+ clp->cl_implid->date.seconds,
+ clp->cl_implid->date.nseconds);
dprintk("<-- %s status= %d\n", __func__, status);
return status;
}
+static int _nfs4_proc_destroy_clientid(struct nfs_client *clp,
+ struct rpc_cred *cred)
+{
+ struct rpc_message msg = {
+ .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_DESTROY_CLIENTID],
+ .rpc_argp = clp,
+ .rpc_cred = cred,
+ };
+ int status;
+
+ status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
+ if (status)
+ pr_warn("NFS: Got error %d from the server %s on "
+ "DESTROY_CLIENTID.", status, clp->cl_hostname);
+ return status;
+}
+
+static int nfs4_proc_destroy_clientid(struct nfs_client *clp,
+ struct rpc_cred *cred)
+{
+ unsigned int loop;
+ int ret;
+
+ for (loop = NFS4_MAX_LOOP_ON_RECOVER; loop != 0; loop--) {
+ ret = _nfs4_proc_destroy_clientid(clp, cred);
+ switch (ret) {
+ case -NFS4ERR_DELAY:
+ case -NFS4ERR_CLIENTID_BUSY:
+ ssleep(1);
+ break;
+ default:
+ return ret;
+ }
+ }
+ return 0;
+}
+
+int nfs4_destroy_clientid(struct nfs_client *clp)
+{
+ struct rpc_cred *cred;
+ int ret = 0;
+
+ if (clp->cl_mvops->minor_version < 1)
+ goto out;
+ if (clp->cl_exchange_flags == 0)
+ goto out;
+ cred = nfs4_get_exchange_id_cred(clp);
+ ret = nfs4_proc_destroy_clientid(clp, cred);
+ if (cred)
+ put_rpccred(cred);
+ switch (ret) {
+ case 0:
+ case -NFS4ERR_STALE_CLIENTID:
+ clp->cl_exchange_flags = 0;
+ }
+out:
+ return ret;
+}
+
struct nfs4_get_lease_time_data {
struct nfs4_get_lease_time_args *args;
struct nfs4_get_lease_time_res *res;
void nfs4_destroy_session(struct nfs4_session *session)
{
struct rpc_xprt *xprt;
+ struct rpc_cred *cred;
- nfs4_proc_destroy_session(session);
+ cred = nfs4_get_exchange_id_cred(session->clp);
+ nfs4_proc_destroy_session(session, cred);
+ if (cred)
+ put_rpccred(cred);
rcu_read_lock();
xprt = rcu_dereference(session->clp->cl_rpcclient->cl_xprt);
return nfs4_verify_back_channel_attrs(args, session);
}
-static int _nfs4_proc_create_session(struct nfs_client *clp)
+static int _nfs4_proc_create_session(struct nfs_client *clp,
+ struct rpc_cred *cred)
{
struct nfs4_session *session = clp->cl_session;
struct nfs41_create_session_args args = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CREATE_SESSION],
.rpc_argp = &args,
.rpc_resp = &res,
+ .rpc_cred = cred,
};
int status;
* It is the responsibility of the caller to verify the session is
* expired before calling this routine.
*/
-int nfs4_proc_create_session(struct nfs_client *clp)
+int nfs4_proc_create_session(struct nfs_client *clp, struct rpc_cred *cred)
{
int status;
unsigned *ptr;
dprintk("--> %s clp=%p session=%p\n", __func__, clp, session);
- status = _nfs4_proc_create_session(clp);
+ status = _nfs4_proc_create_session(clp, cred);
if (status)
goto out;
* Issue the over-the-wire RPC DESTROY_SESSION.
* The caller must serialize access to this routine.
*/
-int nfs4_proc_destroy_session(struct nfs4_session *session)
+int nfs4_proc_destroy_session(struct nfs4_session *session,
+ struct rpc_cred *cred)
{
+ struct rpc_message msg = {
+ .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_DESTROY_SESSION],
+ .rpc_argp = session,
+ .rpc_cred = cred,
+ };
int status = 0;
- struct rpc_message msg;
dprintk("--> nfs4_proc_destroy_session\n");
if (session->clp->cl_cons_state != NFS_CS_READY)
return status;
- msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_DESTROY_SESSION];
- msg.rpc_argp = session;
- msg.rpc_resp = NULL;
- msg.rpc_cred = NULL;
status = rpc_call_sync(session->clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
if (status)
return status;
}
+/*
+ * With sessions, the client is not marked ready until after a
+ * successful EXCHANGE_ID and CREATE_SESSION.
+ *
+ * Map errors cl_cons_state errors to EPROTONOSUPPORT to indicate
+ * other versions of NFS can be tried.
+ */
+static int nfs41_check_session_ready(struct nfs_client *clp)
+{
+ int ret;
+
+ if (clp->cl_cons_state == NFS_CS_SESSION_INITING) {
+ ret = nfs4_client_recover_expired_lease(clp);
+ if (ret)
+ return ret;
+ }
+ if (clp->cl_cons_state < NFS_CS_READY)
+ return -EPROTONOSUPPORT;
+ smp_rmb();
+ return 0;
+}
+
int nfs4_init_session(struct nfs_server *server)
{
struct nfs_client *clp = server->nfs_client;
struct nfs4_session *session;
unsigned int rsize, wsize;
- int ret;
if (!nfs4_has_session(clp))
return 0;
session = clp->cl_session;
- if (!test_and_clear_bit(NFS4_SESSION_INITING, &session->session_state))
- return 0;
+ spin_lock(&clp->cl_lock);
+ if (test_and_clear_bit(NFS4_SESSION_INITING, &session->session_state)) {
- rsize = server->rsize;
- if (rsize == 0)
- rsize = NFS_MAX_FILE_IO_SIZE;
- wsize = server->wsize;
- if (wsize == 0)
- wsize = NFS_MAX_FILE_IO_SIZE;
+ rsize = server->rsize;
+ if (rsize == 0)
+ rsize = NFS_MAX_FILE_IO_SIZE;
+ wsize = server->wsize;
+ if (wsize == 0)
+ wsize = NFS_MAX_FILE_IO_SIZE;
- session->fc_attrs.max_rqst_sz = wsize + nfs41_maxwrite_overhead;
- session->fc_attrs.max_resp_sz = rsize + nfs41_maxread_overhead;
+ session->fc_attrs.max_rqst_sz = wsize + nfs41_maxwrite_overhead;
+ session->fc_attrs.max_resp_sz = rsize + nfs41_maxread_overhead;
+ }
+ spin_unlock(&clp->cl_lock);
- ret = nfs4_recover_expired_lease(server);
- if (!ret)
- ret = nfs4_check_client_ready(clp);
- return ret;
+ return nfs41_check_session_ready(clp);
}
-int nfs4_init_ds_session(struct nfs_client *clp)
+int nfs4_init_ds_session(struct nfs_client *clp, unsigned long lease_time)
{
struct nfs4_session *session = clp->cl_session;
int ret;
- if (!test_and_clear_bit(NFS4_SESSION_INITING, &session->session_state))
- return 0;
-
- ret = nfs4_client_recover_expired_lease(clp);
- if (!ret)
- /* Test for the DS role */
- if (!is_ds_client(clp))
- ret = -ENODEV;
- if (!ret)
- ret = nfs4_check_client_ready(clp);
- return ret;
+ spin_lock(&clp->cl_lock);
+ if (test_and_clear_bit(NFS4_SESSION_INITING, &session->session_state)) {
+ /*
+ * Do not set NFS_CS_CHECK_LEASE_TIME instead set the
+ * DS lease to be equal to the MDS lease.
+ */
+ clp->cl_lease_time = lease_time;
+ clp->cl_last_renewal = jiffies;
+ }
+ spin_unlock(&clp->cl_lock);
+ ret = nfs41_check_session_ready(clp);
+ if (ret)
+ return ret;
+ /* Test for the DS role */
+ if (!is_ds_client(clp))
+ return -ENODEV;
+ return 0;
}
EXPORT_SYMBOL_GPL(nfs4_init_ds_session);
.file_inode_ops = &nfs4_file_inode_operations,
.file_ops = &nfs4_file_operations,
.getroot = nfs4_proc_get_root,
+ .submount = nfs4_submount,
.getattr = nfs4_proc_getattr,
.setattr = nfs4_proc_setattr,
.lookup = nfs4_proc_lookup,
.write_rpc_prepare = nfs4_proc_write_rpc_prepare,
.write_done = nfs4_write_done,
.commit_setup = nfs4_proc_commit_setup,
+ .commit_rpc_prepare = nfs4_proc_commit_rpc_prepare,
.commit_done = nfs4_commit_done,
.lock = nfs4_proc_lock,
.clear_acl_cache = nfs4_zap_acl_attr,
.close_context = nfs4_close_context,
.open_context = nfs4_atomic_open,
.init_client = nfs4_init_client,
- .secinfo = nfs4_proc_secinfo,
};
static const struct xattr_handler nfs4_xattr_nfs4_acl_handler = {
#include "nfs4_fs.h"
#include "delegation.h"
-#define NFSDBG_FACILITY NFSDBG_PROC
+#define NFSDBG_FACILITY NFSDBG_STATE
void
nfs4_renew_state(struct work_struct *work)
#include "internal.h"
#include "pnfs.h"
+#define NFSDBG_FACILITY NFSDBG_STATE
+
#define OPENOWNER_POOL_SIZE 8
const nfs4_stateid zero_stateid;
goto out;
set_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state);
do_confirm:
- status = nfs4_proc_create_session(clp);
+ status = nfs4_proc_create_session(clp, cred);
if (status != 0)
goto out;
clear_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state);
return;
if (!test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state))
set_bit(NFS4CLNT_CHECK_LEASE, &clp->cl_state);
+ dprintk("%s: scheduling lease recovery for server %s\n", __func__,
+ clp->cl_hostname);
nfs4_schedule_state_manager(clp);
}
EXPORT_SYMBOL_GPL(nfs4_schedule_lease_recovery);
{
set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
nfs_expire_all_delegations(clp);
+ dprintk("%s: handling CB_PATHDOWN recovery for server %s\n", __func__,
+ clp->cl_hostname);
}
void nfs4_schedule_path_down_recovery(struct nfs_client *clp)
struct nfs_client *clp = server->nfs_client;
nfs4_state_mark_reclaim_nograce(clp, state);
+ dprintk("%s: scheduling stateid recovery for server %s\n", __func__,
+ clp->cl_hostname);
nfs4_schedule_state_manager(clp);
}
EXPORT_SYMBOL_GPL(nfs4_schedule_stateid_recovery);
case -NFS4ERR_BADSLOT:
case -NFS4ERR_BAD_HIGH_SLOT:
case -NFS4ERR_DEADSESSION:
- case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
case -NFS4ERR_SEQ_FALSE_RETRY:
case -NFS4ERR_SEQ_MISORDERED:
set_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state);
/* Zero session reset errors */
break;
+ case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
+ set_bit(NFS4CLNT_BIND_CONN_TO_SESSION, &clp->cl_state);
+ break;
case -EKEYEXPIRED:
/* Nothing we can do */
nfs4_warn_keyexpired(clp->cl_hostname);
break;
default:
+ dprintk("%s: failed to handle error %d for server %s\n",
+ __func__, error, clp->cl_hostname);
return error;
}
+ dprintk("%s: handled error %d for server %s\n", __func__, error,
+ clp->cl_hostname);
return 0;
}
return nfs4_recovery_handle_error(clp, status);
}
+/* Set NFS4CLNT_LEASE_EXPIRED for all v4.0 errors and for recoverable errors
+ * on EXCHANGE_ID for v4.1
+ */
+static int nfs4_handle_reclaim_lease_error(struct nfs_client *clp, int status)
+{
+ switch (status) {
+ case -NFS4ERR_SEQ_MISORDERED:
+ if (test_and_set_bit(NFS4CLNT_PURGE_STATE, &clp->cl_state))
+ return -ESERVERFAULT;
+ /* Lease confirmation error: retry after purging the lease */
+ ssleep(1);
+ case -NFS4ERR_CLID_INUSE:
+ case -NFS4ERR_STALE_CLIENTID:
+ clear_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state);
+ break;
+ case -EACCES:
+ if (clp->cl_machine_cred == NULL)
+ return -EACCES;
+ /* Handle case where the user hasn't set up machine creds */
+ nfs4_clear_machine_cred(clp);
+ case -NFS4ERR_DELAY:
+ case -ETIMEDOUT:
+ case -EAGAIN:
+ ssleep(1);
+ break;
+
+ case -NFS4ERR_MINOR_VERS_MISMATCH:
+ if (clp->cl_cons_state == NFS_CS_SESSION_INITING)
+ nfs_mark_client_ready(clp, -EPROTONOSUPPORT);
+ dprintk("%s: exit with error %d for server %s\n",
+ __func__, -EPROTONOSUPPORT, clp->cl_hostname);
+ return -EPROTONOSUPPORT;
+ case -EKEYEXPIRED:
+ nfs4_warn_keyexpired(clp->cl_hostname);
+ case -NFS4ERR_NOT_SAME: /* FixMe: implement recovery
+ * in nfs4_exchange_id */
+ default:
+ dprintk("%s: exit with error %d for server %s\n", __func__,
+ status, clp->cl_hostname);
+ return status;
+ }
+ set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
+ dprintk("%s: handled error %d for server %s\n", __func__, status,
+ clp->cl_hostname);
+ return 0;
+}
+
static int nfs4_reclaim_lease(struct nfs_client *clp)
{
struct rpc_cred *cred;
const struct nfs4_state_recovery_ops *ops =
clp->cl_mvops->reboot_recovery_ops;
- int status = -ENOENT;
+ int status;
cred = ops->get_clid_cred(clp);
- if (cred != NULL) {
- status = ops->establish_clid(clp, cred);
- put_rpccred(cred);
- /* Handle case where the user hasn't set up machine creds */
- if (status == -EACCES && cred == clp->cl_machine_cred) {
- nfs4_clear_machine_cred(clp);
- status = -EAGAIN;
- }
- if (status == -NFS4ERR_MINOR_VERS_MISMATCH)
- status = -EPROTONOSUPPORT;
- }
- return status;
+ if (cred == NULL)
+ return -ENOENT;
+ status = ops->establish_clid(clp, cred);
+ put_rpccred(cred);
+ if (status != 0)
+ return nfs4_handle_reclaim_lease_error(clp, status);
+ return 0;
}
#ifdef CONFIG_NFS_V4_1
-void nfs4_schedule_session_recovery(struct nfs4_session *session)
+void nfs4_schedule_session_recovery(struct nfs4_session *session, int err)
{
struct nfs_client *clp = session->clp;
- set_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state);
+ switch (err) {
+ default:
+ set_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state);
+ break;
+ case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
+ set_bit(NFS4CLNT_BIND_CONN_TO_SESSION, &clp->cl_state);
+ }
nfs4_schedule_lease_recovery(clp);
}
EXPORT_SYMBOL_GPL(nfs4_schedule_session_recovery);
void nfs41_handle_recall_slot(struct nfs_client *clp)
{
set_bit(NFS4CLNT_RECALL_SLOT, &clp->cl_state);
+ dprintk("%s: scheduling slot recall for server %s\n", __func__,
+ clp->cl_hostname);
nfs4_schedule_state_manager(clp);
}
static void nfs4_reset_all_state(struct nfs_client *clp)
{
if (test_and_set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) == 0) {
- clp->cl_boot_time = CURRENT_TIME;
+ set_bit(NFS4CLNT_PURGE_STATE, &clp->cl_state);
+ clear_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state);
nfs4_state_start_reclaim_nograce(clp);
+ dprintk("%s: scheduling reset of all state for server %s!\n",
+ __func__, clp->cl_hostname);
nfs4_schedule_state_manager(clp);
}
}
{
if (test_and_set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) == 0) {
nfs4_state_start_reclaim_reboot(clp);
+ dprintk("%s: server %s rebooted!\n", __func__,
+ clp->cl_hostname);
nfs4_schedule_state_manager(clp);
}
}
static void nfs41_handle_state_revoked(struct nfs_client *clp)
{
- /* Temporary */
nfs4_reset_all_state(clp);
+ dprintk("%s: state revoked on server %s\n", __func__, clp->cl_hostname);
}
static void nfs41_handle_recallable_state_revoked(struct nfs_client *clp)
{
/* This will need to handle layouts too */
nfs_expire_all_delegations(clp);
+ dprintk("%s: Recallable state revoked on server %s!\n", __func__,
+ clp->cl_hostname);
}
-static void nfs41_handle_cb_path_down(struct nfs_client *clp)
+static void nfs41_handle_backchannel_fault(struct nfs_client *clp)
{
nfs_expire_all_delegations(clp);
if (test_and_set_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state) == 0)
nfs4_schedule_state_manager(clp);
+ dprintk("%s: server %s declared a backchannel fault\n", __func__,
+ clp->cl_hostname);
+}
+
+static void nfs41_handle_cb_path_down(struct nfs_client *clp)
+{
+ if (test_and_set_bit(NFS4CLNT_BIND_CONN_TO_SESSION,
+ &clp->cl_state) == 0)
+ nfs4_schedule_state_manager(clp);
}
void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags)
{
if (!flags)
return;
+
+ dprintk("%s: \"%s\" (client ID %llx) flags=0x%08x\n",
+ __func__, clp->cl_hostname, clp->cl_clientid, flags);
+
if (flags & SEQ4_STATUS_RESTART_RECLAIM_NEEDED)
nfs41_handle_server_reboot(clp);
if (flags & (SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED |
nfs41_handle_state_revoked(clp);
if (flags & SEQ4_STATUS_RECALLABLE_STATE_REVOKED)
nfs41_handle_recallable_state_revoked(clp);
- if (flags & (SEQ4_STATUS_CB_PATH_DOWN |
- SEQ4_STATUS_BACKCHANNEL_FAULT |
- SEQ4_STATUS_CB_PATH_DOWN_SESSION))
+ if (flags & SEQ4_STATUS_BACKCHANNEL_FAULT)
+ nfs41_handle_backchannel_fault(clp);
+ else if (flags & (SEQ4_STATUS_CB_PATH_DOWN |
+ SEQ4_STATUS_CB_PATH_DOWN_SESSION))
nfs41_handle_cb_path_down(clp);
}
static int nfs4_reset_session(struct nfs_client *clp)
{
+ struct rpc_cred *cred;
int status;
nfs4_begin_drain_session(clp);
- status = nfs4_proc_destroy_session(clp->cl_session);
+ cred = nfs4_get_exchange_id_cred(clp);
+ status = nfs4_proc_destroy_session(clp->cl_session, cred);
if (status && status != -NFS4ERR_BADSESSION &&
status != -NFS4ERR_DEADSESSION) {
status = nfs4_recovery_handle_error(clp, status);
}
memset(clp->cl_session->sess_id.data, 0, NFS4_MAX_SESSIONID_LEN);
- status = nfs4_proc_create_session(clp);
+ status = nfs4_proc_create_session(clp, cred);
if (status) {
- status = nfs4_recovery_handle_error(clp, status);
+ dprintk("%s: session reset failed with status %d for server %s!\n",
+ __func__, status, clp->cl_hostname);
+ status = nfs4_handle_reclaim_lease_error(clp, status);
goto out;
}
clear_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state);
/* create_session negotiated new slot table */
clear_bit(NFS4CLNT_RECALL_SLOT, &clp->cl_state);
+ clear_bit(NFS4CLNT_BIND_CONN_TO_SESSION, &clp->cl_state);
+ dprintk("%s: session reset was successful for server %s!\n",
+ __func__, clp->cl_hostname);
/* Let the state manager reestablish state */
if (!test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state))
nfs41_setup_state_renewal(clp);
out:
+ if (cred)
+ put_rpccred(cred);
return status;
}
return 0;
}
-#else /* CONFIG_NFS_V4_1 */
-static int nfs4_reset_session(struct nfs_client *clp) { return 0; }
-static int nfs4_end_drain_session(struct nfs_client *clp) { return 0; }
-static int nfs4_recall_slot(struct nfs_client *clp) { return 0; }
-#endif /* CONFIG_NFS_V4_1 */
-
-/* Set NFS4CLNT_LEASE_EXPIRED for all v4.0 errors and for recoverable errors
- * on EXCHANGE_ID for v4.1
- */
-static void nfs4_set_lease_expired(struct nfs_client *clp, int status)
+static int nfs4_bind_conn_to_session(struct nfs_client *clp)
{
- switch (status) {
- case -NFS4ERR_CLID_INUSE:
- case -NFS4ERR_STALE_CLIENTID:
- clear_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state);
+ struct rpc_cred *cred;
+ int ret;
+
+ nfs4_begin_drain_session(clp);
+ cred = nfs4_get_exchange_id_cred(clp);
+ ret = nfs4_proc_bind_conn_to_session(clp, cred);
+ if (cred)
+ put_rpccred(cred);
+ clear_bit(NFS4CLNT_BIND_CONN_TO_SESSION, &clp->cl_state);
+ switch (ret) {
+ case 0:
+ dprintk("%s: bind_conn_to_session was successful for server %s!\n",
+ __func__, clp->cl_hostname);
break;
case -NFS4ERR_DELAY:
- case -ETIMEDOUT:
- case -EAGAIN:
ssleep(1);
+ set_bit(NFS4CLNT_BIND_CONN_TO_SESSION, &clp->cl_state);
break;
-
- case -EKEYEXPIRED:
- nfs4_warn_keyexpired(clp->cl_hostname);
- case -NFS4ERR_NOT_SAME: /* FixMe: implement recovery
- * in nfs4_exchange_id */
default:
- return;
+ return nfs4_recovery_handle_error(clp, ret);
}
- set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
+ return 0;
}
+#else /* CONFIG_NFS_V4_1 */
+static int nfs4_reset_session(struct nfs_client *clp) { return 0; }
+static int nfs4_end_drain_session(struct nfs_client *clp) { return 0; }
+static int nfs4_recall_slot(struct nfs_client *clp) { return 0; }
+
+static int nfs4_bind_conn_to_session(struct nfs_client *clp)
+{
+ return 0;
+}
+#endif /* CONFIG_NFS_V4_1 */
static void nfs4_state_manager(struct nfs_client *clp)
{
/* Ensure exclusive access to NFSv4 state */
do {
+ if (test_bit(NFS4CLNT_PURGE_STATE, &clp->cl_state)) {
+ status = nfs4_reclaim_lease(clp);
+ if (status < 0)
+ goto out_error;
+ clear_bit(NFS4CLNT_PURGE_STATE, &clp->cl_state);
+ set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
+ }
+
if (test_and_clear_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state)) {
/* We're going to have to re-establish a clientid */
status = nfs4_reclaim_lease(clp);
- if (status) {
- nfs4_set_lease_expired(clp, status);
- if (test_bit(NFS4CLNT_LEASE_EXPIRED,
- &clp->cl_state))
- continue;
- if (clp->cl_cons_state ==
- NFS_CS_SESSION_INITING)
- nfs_mark_client_ready(clp, status);
+ if (status < 0)
goto out_error;
- }
+ if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state))
+ continue;
clear_bit(NFS4CLNT_CHECK_LEASE, &clp->cl_state);
if (test_and_clear_bit(NFS4CLNT_SERVER_SCOPE_MISMATCH,
goto out_error;
}
+ /* Send BIND_CONN_TO_SESSION */
+ if (test_and_clear_bit(NFS4CLNT_BIND_CONN_TO_SESSION,
+ &clp->cl_state) && nfs4_has_session(clp)) {
+ status = nfs4_bind_conn_to_session(clp);
+ if (status < 0)
+ goto out_error;
+ continue;
+ }
+
/* First recover reboot state... */
if (test_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state)) {
status = nfs4_do_reclaim(clp,
#include <linux/nfs4.h>
#include <linux/nfs_fs.h>
#include <linux/nfs_idmap.h>
+
#include "nfs4_fs.h"
#include "internal.h"
#include "pnfs.h"
+#include "netns.h"
#define NFSDBG_FACILITY NFSDBG_XDR
#define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
#define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
#define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
+/* We support only one layout type per file system */
+#define decode_mdsthreshold_maxsz (1 + 1 + nfs4_fattr_bitmap_maxsz + 1 + 8)
/* This is based on getfattr, which uses the most attributes: */
#define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
- 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz))
+ 3 + 3 + 3 + nfs4_owner_maxsz + \
+ nfs4_group_maxsz + decode_mdsthreshold_maxsz))
#define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
nfs4_fattr_value_maxsz)
#define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
1 /* csr_flags */ + \
decode_channel_attrs_maxsz + \
decode_channel_attrs_maxsz)
+#define encode_bind_conn_to_session_maxsz (op_encode_hdr_maxsz + \
+ /* bctsa_sessid */ \
+ XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
+ 1 /* bctsa_dir */ + \
+ 1 /* bctsa_use_conn_in_rdma_mode */)
+#define decode_bind_conn_to_session_maxsz (op_decode_hdr_maxsz + \
+ /* bctsr_sessid */ \
+ XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
+ 1 /* bctsr_dir */ + \
+ 1 /* bctsr_use_conn_in_rdma_mode */)
#define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
#define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
+#define encode_destroy_clientid_maxsz (op_encode_hdr_maxsz + 2)
+#define decode_destroy_clientid_maxsz (op_decode_hdr_maxsz)
#define encode_sequence_maxsz (op_encode_hdr_maxsz + \
XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
#define decode_sequence_maxsz (op_decode_hdr_maxsz + \
#define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
encode_sequence_maxsz + \
encode_putfh_maxsz + \
- encode_commit_maxsz + \
- encode_getattr_maxsz)
+ encode_commit_maxsz)
#define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
decode_sequence_maxsz + \
decode_putfh_maxsz + \
- decode_commit_maxsz + \
- decode_getattr_maxsz)
+ decode_commit_maxsz)
#define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
encode_sequence_maxsz + \
encode_putfh_maxsz + \
- encode_savefh_maxsz + \
encode_open_maxsz + \
encode_getfh_maxsz + \
- encode_getattr_maxsz + \
- encode_restorefh_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
decode_sequence_maxsz + \
decode_putfh_maxsz + \
- decode_savefh_maxsz + \
decode_open_maxsz + \
decode_getfh_maxsz + \
- decode_getattr_maxsz + \
- decode_restorefh_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_open_confirm_sz \
(compound_encode_hdr_maxsz + \
#define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
encode_sequence_maxsz + \
encode_putfh_maxsz + \
- encode_remove_maxsz + \
- encode_getattr_maxsz)
+ encode_remove_maxsz)
#define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
decode_sequence_maxsz + \
decode_putfh_maxsz + \
- decode_remove_maxsz + \
- decode_getattr_maxsz)
+ decode_remove_maxsz)
#define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_savefh_maxsz + \
encode_putfh_maxsz + \
- encode_rename_maxsz + \
- encode_getattr_maxsz + \
- encode_restorefh_maxsz + \
- encode_getattr_maxsz)
+ encode_rename_maxsz)
#define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_savefh_maxsz + \
decode_putfh_maxsz + \
- decode_rename_maxsz + \
- decode_getattr_maxsz + \
- decode_restorefh_maxsz + \
- decode_getattr_maxsz)
+ decode_rename_maxsz)
#define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_savefh_maxsz + \
encode_putfh_maxsz + \
encode_link_maxsz + \
- decode_getattr_maxsz + \
encode_restorefh_maxsz + \
- decode_getattr_maxsz)
+ encode_getattr_maxsz)
#define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_savefh_maxsz + \
decode_putfh_maxsz + \
decode_link_maxsz + \
- decode_getattr_maxsz + \
decode_restorefh_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
#define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
encode_sequence_maxsz + \
encode_putfh_maxsz + \
- encode_savefh_maxsz + \
encode_create_maxsz + \
encode_getfh_maxsz + \
- encode_getattr_maxsz + \
- encode_restorefh_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
decode_sequence_maxsz + \
decode_putfh_maxsz + \
- decode_savefh_maxsz + \
decode_create_maxsz + \
decode_getfh_maxsz + \
- decode_getattr_maxsz + \
- decode_restorefh_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
encode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_secinfo_maxsz)
#if defined(CONFIG_NFS_V4_1)
+#define NFS4_enc_bind_conn_to_session_sz \
+ (compound_encode_hdr_maxsz + \
+ encode_bind_conn_to_session_maxsz)
+#define NFS4_dec_bind_conn_to_session_sz \
+ (compound_decode_hdr_maxsz + \
+ decode_bind_conn_to_session_maxsz)
#define NFS4_enc_exchange_id_sz \
(compound_encode_hdr_maxsz + \
encode_exchange_id_maxsz)
encode_destroy_session_maxsz)
#define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
decode_destroy_session_maxsz)
+#define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \
+ encode_destroy_clientid_maxsz)
+#define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \
+ decode_destroy_clientid_maxsz)
#define NFS4_enc_sequence_sz \
(compound_decode_hdr_maxsz + \
encode_sequence_maxsz)
encode_nfs4_stateid(xdr, arg->stateid);
}
-static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
+static void encode_commit(struct xdr_stream *xdr, const struct nfs_commitargs *args, struct compound_hdr *hdr)
{
__be32 *p;
bitmask[1] & nfs4_fattr_bitmap[1], hdr);
}
+static void encode_getfattr_open(struct xdr_stream *xdr, const u32 *bitmask,
+ struct compound_hdr *hdr)
+{
+ encode_getattr_three(xdr,
+ bitmask[0] & nfs4_fattr_bitmap[0],
+ bitmask[1] & nfs4_fattr_bitmap[1],
+ bitmask[2] & FATTR4_WORD2_MDSTHRESHOLD,
+ hdr);
+}
+
static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
{
encode_getattr_three(xdr,
#if defined(CONFIG_NFS_V4_1)
/* NFSv4.1 operations */
+static void encode_bind_conn_to_session(struct xdr_stream *xdr,
+ struct nfs4_session *session,
+ struct compound_hdr *hdr)
+{
+ __be32 *p;
+
+ encode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION,
+ decode_bind_conn_to_session_maxsz, hdr);
+ encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
+ p = xdr_reserve_space(xdr, 8);
+ *p++ = cpu_to_be32(NFS4_CDFC4_BACK_OR_BOTH);
+ *p = 0; /* use_conn_in_rdma_mode = False */
+}
+
static void encode_exchange_id(struct xdr_stream *xdr,
struct nfs41_exchange_id_args *args,
struct compound_hdr *hdr)
char machine_name[NFS4_MAX_MACHINE_NAME_LEN];
uint32_t len;
struct nfs_client *clp = args->client;
+ struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);
u32 max_resp_sz_cached;
/*
*p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */
/* authsys_parms rfc1831 */
- *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */
+ *p++ = (__be32)nn->boot_time.tv_nsec; /* stamp */
p = xdr_encode_opaque(p, machine_name, len);
*p++ = cpu_to_be32(0); /* UID */
*p++ = cpu_to_be32(0); /* GID */
encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
}
+static void encode_destroy_clientid(struct xdr_stream *xdr,
+ uint64_t clientid,
+ struct compound_hdr *hdr)
+{
+ encode_op_hdr(xdr, OP_DESTROY_CLIENTID, decode_destroy_clientid_maxsz, hdr);
+ encode_uint64(xdr, clientid);
+}
+
static void encode_reclaim_complete(struct xdr_stream *xdr,
struct nfs41_reclaim_complete_args *args,
struct compound_hdr *hdr)
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->fh, &hdr);
encode_remove(xdr, &args->name, &hdr);
- encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
}
encode_savefh(xdr, &hdr);
encode_putfh(xdr, args->new_dir, &hdr);
encode_rename(xdr, args->old_name, args->new_name, &hdr);
- encode_getfattr(xdr, args->bitmask, &hdr);
- encode_restorefh(xdr, &hdr);
- encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
}
encode_savefh(xdr, &hdr);
encode_putfh(xdr, args->dir_fh, &hdr);
encode_link(xdr, args->name, &hdr);
- encode_getfattr(xdr, args->bitmask, &hdr);
encode_restorefh(xdr, &hdr);
encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
encode_compound_hdr(xdr, req, &hdr);
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->dir_fh, &hdr);
- encode_savefh(xdr, &hdr);
encode_create(xdr, args, &hdr);
encode_getfh(xdr, &hdr);
encode_getfattr(xdr, args->bitmask, &hdr);
- encode_restorefh(xdr, &hdr);
- encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
}
encode_compound_hdr(xdr, req, &hdr);
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->fh, &hdr);
- encode_savefh(xdr, &hdr);
encode_open(xdr, args, &hdr);
encode_getfh(xdr, &hdr);
- encode_getfattr(xdr, args->bitmask, &hdr);
- encode_restorefh(xdr, &hdr);
- encode_getfattr(xdr, args->dir_bitmask, &hdr);
+ encode_getfattr_open(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
}
* a COMMIT request
*/
static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs_writeargs *args)
+ struct nfs_commitargs *args)
{
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->fh, &hdr);
encode_commit(xdr, args, &hdr);
- if (args->bitmask)
- encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
}
encode_compound_hdr(xdr, req, &hdr);
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->fhandle, &hdr);
- encode_delegreturn(xdr, args->stateid, &hdr);
encode_getfattr(xdr, args->bitmask, &hdr);
+ encode_delegreturn(xdr, args->stateid, &hdr);
encode_nops(&hdr);
}
}
#if defined(CONFIG_NFS_V4_1)
+/*
+ * BIND_CONN_TO_SESSION request
+ */
+static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs_client *clp)
+{
+ struct compound_hdr hdr = {
+ .minorversion = clp->cl_mvops->minor_version,
+ };
+
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_bind_conn_to_session(xdr, clp->cl_session, &hdr);
+ encode_nops(&hdr);
+}
+
/*
* EXCHANGE_ID request
*/
encode_nops(&hdr);
}
+/*
+ * a DESTROY_CLIENTID request
+ */
+static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs_client *clp)
+{
+ struct compound_hdr hdr = {
+ .minorversion = clp->cl_mvops->minor_version,
+ };
+
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_destroy_clientid(xdr, clp->cl_clientid, &hdr);
+ encode_nops(&hdr);
+}
+
/*
* a SEQUENCE request
*/
return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE);
}
-static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res)
+static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res)
{
int status;
return status;
}
+static int decode_threshold_hint(struct xdr_stream *xdr,
+ uint32_t *bitmap,
+ uint64_t *res,
+ uint32_t hint_bit)
+{
+ __be32 *p;
+
+ *res = 0;
+ if (likely(bitmap[0] & hint_bit)) {
+ p = xdr_inline_decode(xdr, 8);
+ if (unlikely(!p))
+ goto out_overflow;
+ xdr_decode_hyper(p, res);
+ }
+ return 0;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
+}
+
+static int decode_first_threshold_item4(struct xdr_stream *xdr,
+ struct nfs4_threshold *res)
+{
+ __be32 *p, *savep;
+ uint32_t bitmap[3] = {0,}, attrlen;
+ int status;
+
+ /* layout type */
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(!p)) {
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
+ }
+ res->l_type = be32_to_cpup(p);
+
+ /* thi_hintset bitmap */
+ status = decode_attr_bitmap(xdr, bitmap);
+ if (status < 0)
+ goto xdr_error;
+
+ /* thi_hintlist length */
+ status = decode_attr_length(xdr, &attrlen, &savep);
+ if (status < 0)
+ goto xdr_error;
+ /* thi_hintlist */
+ status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD);
+ if (status < 0)
+ goto xdr_error;
+ status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR);
+ if (status < 0)
+ goto xdr_error;
+ status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz,
+ THRESHOLD_RD_IO);
+ if (status < 0)
+ goto xdr_error;
+ status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz,
+ THRESHOLD_WR_IO);
+ if (status < 0)
+ goto xdr_error;
+
+ status = verify_attr_len(xdr, savep, attrlen);
+ res->bm = bitmap[0];
+
+ dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n",
+ __func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz,
+ res->wr_io_sz);
+xdr_error:
+ dprintk("%s ret=%d!\n", __func__, status);
+ return status;
+}
+
+/*
+ * Thresholds on pNFS direct I/O vrs MDS I/O
+ */
+static int decode_attr_mdsthreshold(struct xdr_stream *xdr,
+ uint32_t *bitmap,
+ struct nfs4_threshold *res)
+{
+ __be32 *p;
+ int status = 0;
+ uint32_t num;
+
+ if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U)))
+ return -EIO;
+ if (likely(bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD)) {
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(!p))
+ goto out_overflow;
+ num = be32_to_cpup(p);
+ if (num == 0)
+ return 0;
+ if (num > 1)
+ printk(KERN_INFO "%s: Warning: Multiple pNFS layout "
+ "drivers per filesystem not supported\n",
+ __func__);
+
+ status = decode_first_threshold_item4(xdr, res);
+ }
+ return status;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
+}
+
static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap,
struct nfs_fattr *fattr, struct nfs_fh *fh,
struct nfs4_fs_locations *fs_loc,
goto xdr_error;
fattr->valid |= status;
+ status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold);
+ if (status < 0)
+ goto xdr_error;
+
xdr_error:
dprintk("%s: xdr returned %d\n", __func__, -status);
return status;
uint32_t dummy;
char *dummy_str;
int status;
- struct nfs_client *clp = res->client;
uint32_t impl_id_count;
status = decode_op_hdr(xdr, OP_EXCHANGE_ID);
p = xdr_inline_decode(xdr, 8);
if (unlikely(!p))
goto out_overflow;
- xdr_decode_hyper(p, &clp->cl_clientid);
+ xdr_decode_hyper(p, &res->clientid);
p = xdr_inline_decode(xdr, 12);
if (unlikely(!p))
goto out_overflow;
- clp->cl_seqid = be32_to_cpup(p++);
- clp->cl_exchange_flags = be32_to_cpup(p++);
+ res->seqid = be32_to_cpup(p++);
+ res->flags = be32_to_cpup(p++);
/* We ask for SP4_NONE */
dummy = be32_to_cpup(p);
if (dummy != SP4_NONE)
return -EIO;
- /* Throw away minor_id */
+ /* server_owner4.so_minor_id */
p = xdr_inline_decode(xdr, 8);
if (unlikely(!p))
goto out_overflow;
+ p = xdr_decode_hyper(p, &res->server_owner->minor_id);
- /* Throw away Major id */
+ /* server_owner4.so_major_id */
status = decode_opaque_inline(xdr, &dummy, &dummy_str);
if (unlikely(status))
return status;
+ if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
+ return -EIO;
+ memcpy(res->server_owner->major_id, dummy_str, dummy);
+ res->server_owner->major_id_sz = dummy;
- /* Save server_scope */
+ /* server_scope4 */
status = decode_opaque_inline(xdr, &dummy, &dummy_str);
if (unlikely(status))
return status;
-
if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
return -EIO;
-
memcpy(res->server_scope->server_scope, dummy_str, dummy);
res->server_scope->server_scope_sz = dummy;
return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN);
}
+static int decode_bind_conn_to_session(struct xdr_stream *xdr,
+ struct nfs41_bind_conn_to_session_res *res)
+{
+ __be32 *p;
+ int status;
+
+ status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION);
+ if (!status)
+ status = decode_sessionid(xdr, &res->session->sess_id);
+ if (unlikely(status))
+ return status;
+
+ /* dir flags, rdma mode bool */
+ p = xdr_inline_decode(xdr, 8);
+ if (unlikely(!p))
+ goto out_overflow;
+
+ res->dir = be32_to_cpup(p++);
+ if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH)
+ return -EIO;
+ if (be32_to_cpup(p) == 0)
+ res->use_conn_in_rdma_mode = false;
+ else
+ res->use_conn_in_rdma_mode = true;
+
+ return 0;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
+}
+
static int decode_create_session(struct xdr_stream *xdr,
struct nfs41_create_session_res *res)
{
return decode_op_hdr(xdr, OP_DESTROY_SESSION);
}
+static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy)
+{
+ return decode_op_hdr(xdr, OP_DESTROY_CLIENTID);
+}
+
static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy)
{
return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE);
if (status)
goto out;
status = decode_remove(xdr, &res->cinfo);
- if (status)
- goto out;
- decode_getfattr(xdr, res->dir_attr, res->server);
out:
return status;
}
if (status)
goto out;
status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo);
- if (status)
- goto out;
- /* Current FH is target directory */
- if (decode_getfattr(xdr, res->new_fattr, res->server))
- goto out;
- status = decode_restorefh(xdr);
- if (status)
- goto out;
- decode_getfattr(xdr, res->old_fattr, res->server);
out:
return status;
}
* Note order: OP_LINK leaves the directory as the current
* filehandle.
*/
- if (decode_getfattr(xdr, res->dir_attr, res->server))
- goto out;
status = decode_restorefh(xdr);
if (status)
goto out;
if (status)
goto out;
status = decode_putfh(xdr);
- if (status)
- goto out;
- status = decode_savefh(xdr);
if (status)
goto out;
status = decode_create(xdr, &res->dir_cinfo);
status = decode_getfh(xdr, res->fh);
if (status)
goto out;
- if (decode_getfattr(xdr, res->fattr, res->server))
- goto out;
- status = decode_restorefh(xdr);
- if (status)
- goto out;
- decode_getfattr(xdr, res->dir_fattr, res->server);
+ decode_getfattr(xdr, res->fattr, res->server);
out:
return status;
}
if (status)
goto out;
status = decode_putfh(xdr);
- if (status)
- goto out;
- status = decode_savefh(xdr);
if (status)
goto out;
status = decode_open(xdr, res);
goto out;
if (decode_getfh(xdr, &res->fh) != 0)
goto out;
- if (decode_getfattr(xdr, res->f_attr, res->server) != 0)
- goto out;
- if (decode_restorefh(xdr) != 0)
- goto out;
- decode_getfattr(xdr, res->dir_attr, res->server);
+ decode_getfattr(xdr, res->f_attr, res->server);
out:
return status;
}
* Decode COMMIT response
*/
static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs_writeres *res)
+ struct nfs_commitres *res)
{
struct compound_hdr hdr;
int status;
if (status)
goto out;
status = decode_commit(xdr, res);
- if (status)
- goto out;
- if (res->fattr)
- decode_getfattr(xdr, res->fattr, res->server);
out:
return status;
}
status = decode_putfh(xdr);
if (status != 0)
goto out;
- status = decode_delegreturn(xdr);
+ status = decode_getfattr(xdr, res->fattr, res->server);
if (status != 0)
goto out;
- decode_getfattr(xdr, res->fattr, res->server);
+ status = decode_delegreturn(xdr);
out:
return status;
}
}
#if defined(CONFIG_NFS_V4_1)
+/*
+ * Decode BIND_CONN_TO_SESSION response
+ */
+static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr,
+ void *res)
+{
+ struct compound_hdr hdr;
+ int status;
+
+ status = decode_compound_hdr(xdr, &hdr);
+ if (!status)
+ status = decode_bind_conn_to_session(xdr, res);
+ return status;
+}
+
/*
* Decode EXCHANGE_ID response
*/
return status;
}
+/*
+ * Decode DESTROY_CLIENTID response
+ */
+static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr,
+ void *res)
+{
+ struct compound_hdr hdr;
+ int status;
+
+ status = decode_compound_hdr(xdr, &hdr);
+ if (!status)
+ status = decode_destroy_clientid(xdr, res);
+ return status;
+}
+
/*
* Decode SEQUENCE response
*/
PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid),
PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid),
PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist),
+ PROC(BIND_CONN_TO_SESSION,
+ enc_bind_conn_to_session, dec_bind_conn_to_session),
+ PROC(DESTROY_CLIENTID, enc_destroy_clientid, dec_destroy_clientid),
#endif /* CONFIG_NFS_V4_1 */
};
memcpy(ocomp->cred, src_comp->oc_cap.cred, sizeof(ocomp->cred));
}
-int __alloc_objio_seg(unsigned numdevs, gfp_t gfp_flags,
+static int __alloc_objio_seg(unsigned numdevs, gfp_t gfp_flags,
struct objio_segment **pseg)
{
/* This is the in memory structure of the objio_segment
int objio_read_pagelist(struct nfs_read_data *rdata)
{
+ struct nfs_pgio_header *hdr = rdata->header;
struct objio_state *objios;
int ret;
- ret = objio_alloc_io_state(NFS_I(rdata->inode)->layout, true,
- rdata->lseg, rdata->args.pages, rdata->args.pgbase,
+ ret = objio_alloc_io_state(NFS_I(hdr->inode)->layout, true,
+ hdr->lseg, rdata->args.pages, rdata->args.pgbase,
rdata->args.offset, rdata->args.count, rdata,
GFP_KERNEL, &objios);
if (unlikely(ret))
{
struct objio_state *objios = priv;
struct nfs_write_data *wdata = objios->oir.rpcdata;
+ struct address_space *mapping = wdata->header->inode->i_mapping;
pgoff_t index = offset / PAGE_SIZE;
- struct page *page = find_get_page(wdata->inode->i_mapping, index);
+ struct page *page = find_get_page(mapping, index);
if (!page) {
- page = find_or_create_page(wdata->inode->i_mapping,
- index, GFP_NOFS);
+ page = find_or_create_page(mapping, index, GFP_NOFS);
if (unlikely(!page)) {
dprintk("%s: grab_cache_page Failed index=0x%lx\n",
__func__, index);
int objio_write_pagelist(struct nfs_write_data *wdata, int how)
{
+ struct nfs_pgio_header *hdr = wdata->header;
struct objio_state *objios;
int ret;
- ret = objio_alloc_io_state(NFS_I(wdata->inode)->layout, false,
- wdata->lseg, wdata->args.pages, wdata->args.pgbase,
+ ret = objio_alloc_io_state(NFS_I(hdr->inode)->layout, false,
+ hdr->lseg, wdata->args.pages, wdata->args.pgbase,
wdata->args.offset, wdata->args.count, wdata, GFP_NOFS,
&objios);
if (unlikely(ret))
if (status >= 0)
rdata->res.count = status;
else
- rdata->pnfs_error = status;
+ rdata->header->pnfs_error = status;
objlayout_iodone(oir);
/* must not use oir after this point */
enum pnfs_try_status
objlayout_read_pagelist(struct nfs_read_data *rdata)
{
+ struct nfs_pgio_header *hdr = rdata->header;
+ struct inode *inode = hdr->inode;
loff_t offset = rdata->args.offset;
size_t count = rdata->args.count;
int err;
loff_t eof;
- eof = i_size_read(rdata->inode);
+ eof = i_size_read(inode);
if (unlikely(offset + count > eof)) {
if (offset >= eof) {
err = 0;
}
rdata->res.eof = (offset + count) >= eof;
- _fix_verify_io_params(rdata->lseg, &rdata->args.pages,
+ _fix_verify_io_params(hdr->lseg, &rdata->args.pages,
&rdata->args.pgbase,
rdata->args.offset, rdata->args.count);
dprintk("%s: inode(%lx) offset 0x%llx count 0x%Zx eof=%d\n",
- __func__, rdata->inode->i_ino, offset, count, rdata->res.eof);
+ __func__, inode->i_ino, offset, count, rdata->res.eof);
err = objio_read_pagelist(rdata);
out:
if (unlikely(err)) {
- rdata->pnfs_error = err;
+ hdr->pnfs_error = err;
dprintk("%s: Returned Error %d\n", __func__, err);
return PNFS_NOT_ATTEMPTED;
}
wdata->res.count = status;
wdata->verf.committed = oir->committed;
} else {
- wdata->pnfs_error = status;
+ wdata->header->pnfs_error = status;
}
objlayout_iodone(oir);
/* must not use oir after this point */
objlayout_write_pagelist(struct nfs_write_data *wdata,
int how)
{
+ struct nfs_pgio_header *hdr = wdata->header;
int err;
- _fix_verify_io_params(wdata->lseg, &wdata->args.pages,
+ _fix_verify_io_params(hdr->lseg, &wdata->args.pages,
&wdata->args.pgbase,
wdata->args.offset, wdata->args.count);
err = objio_write_pagelist(wdata, how);
if (unlikely(err)) {
- wdata->pnfs_error = err;
+ hdr->pnfs_error = err;
dprintk("%s: Returned Error %d\n", __func__, err);
return PNFS_NOT_ATTEMPTED;
}
static struct kmem_cache *nfs_page_cachep;
+bool nfs_pgarray_set(struct nfs_page_array *p, unsigned int pagecount)
+{
+ p->npages = pagecount;
+ if (pagecount <= ARRAY_SIZE(p->page_array))
+ p->pagevec = p->page_array;
+ else {
+ p->pagevec = kcalloc(pagecount, sizeof(struct page *), GFP_KERNEL);
+ if (!p->pagevec)
+ p->npages = 0;
+ }
+ return p->pagevec != NULL;
+}
+
+void nfs_pgheader_init(struct nfs_pageio_descriptor *desc,
+ struct nfs_pgio_header *hdr,
+ void (*release)(struct nfs_pgio_header *hdr))
+{
+ hdr->req = nfs_list_entry(desc->pg_list.next);
+ hdr->inode = desc->pg_inode;
+ hdr->cred = hdr->req->wb_context->cred;
+ hdr->io_start = req_offset(hdr->req);
+ hdr->good_bytes = desc->pg_count;
+ hdr->dreq = desc->pg_dreq;
+ hdr->release = release;
+ hdr->completion_ops = desc->pg_completion_ops;
+ if (hdr->completion_ops->init_hdr)
+ hdr->completion_ops->init_hdr(hdr);
+}
+
+void nfs_set_pgio_error(struct nfs_pgio_header *hdr, int error, loff_t pos)
+{
+ spin_lock(&hdr->lock);
+ if (pos < hdr->io_start + hdr->good_bytes) {
+ set_bit(NFS_IOHDR_ERROR, &hdr->flags);
+ clear_bit(NFS_IOHDR_EOF, &hdr->flags);
+ hdr->good_bytes = pos - hdr->io_start;
+ hdr->error = error;
+ }
+ spin_unlock(&hdr->lock);
+}
+
static inline struct nfs_page *
nfs_page_alloc(void)
{
* long write-back delay. This will be adjusted in
* update_nfs_request below if the region is not locked. */
req->wb_page = page;
- atomic_set(&req->wb_complete, 0);
req->wb_index = page->index;
page_cache_get(page);
- BUG_ON(PagePrivate(page));
- BUG_ON(!PageLocked(page));
- BUG_ON(page->mapping->host != inode);
req->wb_offset = offset;
req->wb_pgbase = offset;
req->wb_bytes = count;
clear_bit(PG_BUSY, &req->wb_flags);
smp_mb__after_clear_bit();
wake_up_bit(&req->wb_flags, PG_BUSY);
+}
+
+/**
+ * nfs_unlock_and_release_request - Unlock request and release the nfs_page
+ * @req:
+ */
+void nfs_unlock_and_release_request(struct nfs_page *req)
+{
+ nfs_unlock_request(req);
nfs_release_request(req);
}
void nfs_pageio_init(struct nfs_pageio_descriptor *desc,
struct inode *inode,
const struct nfs_pageio_ops *pg_ops,
+ const struct nfs_pgio_completion_ops *compl_ops,
size_t bsize,
int io_flags)
{
desc->pg_recoalesce = 0;
desc->pg_inode = inode;
desc->pg_ops = pg_ops;
+ desc->pg_completion_ops = compl_ops;
desc->pg_ioflags = io_flags;
desc->pg_error = 0;
desc->pg_lseg = NULL;
+ desc->pg_dreq = NULL;
}
/**
return false;
if (req->wb_context->state != prev->wb_context->state)
return false;
- if (req->wb_index != (prev->wb_index + 1))
- return false;
if (req->wb_pgbase != 0)
return false;
if (prev->wb_pgbase + prev->wb_bytes != PAGE_CACHE_SIZE)
return false;
+ if (req_offset(req) != req_offset(prev) + prev->wb_bytes)
+ return false;
return pgio->pg_ops->pg_test(pgio, prev, req);
}
dprintk("%s:Begin lo %p\n", __func__, lo);
if (list_empty(&lo->plh_segs)) {
+ /* Reset MDS Threshold I/O counters */
+ NFS_I(lo->plh_inode)->write_io = 0;
+ NFS_I(lo->plh_inode)->read_io = 0;
if (!test_and_set_bit(NFS_LAYOUT_DESTROYED, &lo->plh_flags))
put_layout_hdr_locked(lo);
return 0;
spin_unlock(&nfsi->vfs_inode.i_lock);
pnfs_free_lseg_list(&tmp_list);
}
+EXPORT_SYMBOL_GPL(pnfs_destroy_layout);
/*
* Called by the state manger to remove all layouts established under an
dprintk("<-- %s status: %d\n", __func__, status);
return status;
}
+EXPORT_SYMBOL_GPL(_pnfs_return_layout);
bool pnfs_roc(struct inode *ino)
{
return ret;
}
+/*
+ * Use mdsthreshold hints set at each OPEN to determine if I/O should go
+ * to the MDS or over pNFS
+ *
+ * The nfs_inode read_io and write_io fields are cumulative counters reset
+ * when there are no layout segments. Note that in pnfs_update_layout iomode
+ * is set to IOMODE_READ for a READ request, and set to IOMODE_RW for a
+ * WRITE request.
+ *
+ * A return of true means use MDS I/O.
+ *
+ * From rfc 5661:
+ * If a file's size is smaller than the file size threshold, data accesses
+ * SHOULD be sent to the metadata server. If an I/O request has a length that
+ * is below the I/O size threshold, the I/O SHOULD be sent to the metadata
+ * server. If both file size and I/O size are provided, the client SHOULD
+ * reach or exceed both thresholds before sending its read or write
+ * requests to the data server.
+ */
+static bool pnfs_within_mdsthreshold(struct nfs_open_context *ctx,
+ struct inode *ino, int iomode)
+{
+ struct nfs4_threshold *t = ctx->mdsthreshold;
+ struct nfs_inode *nfsi = NFS_I(ino);
+ loff_t fsize = i_size_read(ino);
+ bool size = false, size_set = false, io = false, io_set = false, ret = false;
+
+ if (t == NULL)
+ return ret;
+
+ dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n",
+ __func__, t->bm, t->rd_sz, t->wr_sz, t->rd_io_sz, t->wr_io_sz);
+
+ switch (iomode) {
+ case IOMODE_READ:
+ if (t->bm & THRESHOLD_RD) {
+ dprintk("%s fsize %llu\n", __func__, fsize);
+ size_set = true;
+ if (fsize < t->rd_sz)
+ size = true;
+ }
+ if (t->bm & THRESHOLD_RD_IO) {
+ dprintk("%s nfsi->read_io %llu\n", __func__,
+ nfsi->read_io);
+ io_set = true;
+ if (nfsi->read_io < t->rd_io_sz)
+ io = true;
+ }
+ break;
+ case IOMODE_RW:
+ if (t->bm & THRESHOLD_WR) {
+ dprintk("%s fsize %llu\n", __func__, fsize);
+ size_set = true;
+ if (fsize < t->wr_sz)
+ size = true;
+ }
+ if (t->bm & THRESHOLD_WR_IO) {
+ dprintk("%s nfsi->write_io %llu\n", __func__,
+ nfsi->write_io);
+ io_set = true;
+ if (nfsi->write_io < t->wr_io_sz)
+ io = true;
+ }
+ break;
+ }
+ if (size_set && io_set) {
+ if (size && io)
+ ret = true;
+ } else if (size || io)
+ ret = true;
+
+ dprintk("<-- %s size %d io %d ret %d\n", __func__, size, io, ret);
+ return ret;
+}
+
/*
* Layout segment is retreived from the server if not cached.
* The appropriate layout segment is referenced and returned to the caller.
if (!pnfs_enabled_sb(NFS_SERVER(ino)))
return NULL;
+
+ if (pnfs_within_mdsthreshold(ctx, ino, iomode))
+ return NULL;
+
spin_lock(&ino->i_lock);
lo = pnfs_find_alloc_layout(ino, ctx, gfp_flags);
if (lo == NULL) {
{
BUG_ON(pgio->pg_lseg != NULL);
+ if (req->wb_offset != req->wb_pgbase) {
+ nfs_pageio_reset_read_mds(pgio);
+ return;
+ }
pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
req->wb_context,
req_offset(req),
{
BUG_ON(pgio->pg_lseg != NULL);
+ if (req->wb_offset != req->wb_pgbase) {
+ nfs_pageio_reset_write_mds(pgio);
+ return;
+ }
pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
req->wb_context,
req_offset(req),
EXPORT_SYMBOL_GPL(pnfs_generic_pg_init_write);
bool
-pnfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, struct inode *inode)
+pnfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, struct inode *inode,
+ const struct nfs_pgio_completion_ops *compl_ops)
{
struct nfs_server *server = NFS_SERVER(inode);
struct pnfs_layoutdriver_type *ld = server->pnfs_curr_ld;
if (ld == NULL)
return false;
- nfs_pageio_init(pgio, inode, ld->pg_read_ops, server->rsize, 0);
+ nfs_pageio_init(pgio, inode, ld->pg_read_ops, compl_ops,
+ server->rsize, 0);
return true;
}
bool
-pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *inode, int ioflags)
+pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *inode,
+ int ioflags,
+ const struct nfs_pgio_completion_ops *compl_ops)
{
struct nfs_server *server = NFS_SERVER(inode);
struct pnfs_layoutdriver_type *ld = server->pnfs_curr_ld;
if (ld == NULL)
return false;
- nfs_pageio_init(pgio, inode, ld->pg_write_ops, server->wsize, ioflags);
+ nfs_pageio_init(pgio, inode, ld->pg_write_ops, compl_ops,
+ server->wsize, ioflags);
return true;
}
}
EXPORT_SYMBOL_GPL(pnfs_generic_pg_test);
-static int pnfs_write_done_resend_to_mds(struct inode *inode, struct list_head *head)
+int pnfs_write_done_resend_to_mds(struct inode *inode,
+ struct list_head *head,
+ const struct nfs_pgio_completion_ops *compl_ops)
{
struct nfs_pageio_descriptor pgio;
LIST_HEAD(failed);
/* Resend all requests through the MDS */
- nfs_pageio_init_write_mds(&pgio, inode, FLUSH_STABLE);
+ nfs_pageio_init_write_mds(&pgio, inode, FLUSH_STABLE, compl_ops);
while (!list_empty(head)) {
struct nfs_page *req = nfs_list_entry(head->next);
}
return 0;
}
+EXPORT_SYMBOL_GPL(pnfs_write_done_resend_to_mds);
+
+static void pnfs_ld_handle_write_error(struct nfs_write_data *data)
+{
+ struct nfs_pgio_header *hdr = data->header;
+
+ dprintk("pnfs write error = %d\n", hdr->pnfs_error);
+ if (NFS_SERVER(hdr->inode)->pnfs_curr_ld->flags &
+ PNFS_LAYOUTRET_ON_ERROR) {
+ clear_bit(NFS_INO_LAYOUTCOMMIT, &NFS_I(hdr->inode)->flags);
+ pnfs_return_layout(hdr->inode);
+ }
+ if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags))
+ data->task.tk_status = pnfs_write_done_resend_to_mds(hdr->inode,
+ &hdr->pages,
+ hdr->completion_ops);
+}
/*
* Called by non rpc-based layout drivers
*/
void pnfs_ld_write_done(struct nfs_write_data *data)
{
- if (likely(!data->pnfs_error)) {
+ struct nfs_pgio_header *hdr = data->header;
+
+ if (!hdr->pnfs_error) {
pnfs_set_layoutcommit(data);
- data->mds_ops->rpc_call_done(&data->task, data);
- } else {
- dprintk("pnfs write error = %d\n", data->pnfs_error);
- if (NFS_SERVER(data->inode)->pnfs_curr_ld->flags &
- PNFS_LAYOUTRET_ON_ERROR) {
- /* Don't lo_commit on error, Server will needs to
- * preform a file recovery.
- */
- clear_bit(NFS_INO_LAYOUTCOMMIT,
- &NFS_I(data->inode)->flags);
- pnfs_return_layout(data->inode);
- }
- data->task.tk_status = pnfs_write_done_resend_to_mds(data->inode, &data->pages);
- }
- put_lseg(data->lseg);
- data->mds_ops->rpc_release(data);
+ hdr->mds_ops->rpc_call_done(&data->task, data);
+ } else
+ pnfs_ld_handle_write_error(data);
+ hdr->mds_ops->rpc_release(data);
}
EXPORT_SYMBOL_GPL(pnfs_ld_write_done);
pnfs_write_through_mds(struct nfs_pageio_descriptor *desc,
struct nfs_write_data *data)
{
- list_splice_tail_init(&data->pages, &desc->pg_list);
- if (data->req && list_empty(&data->req->wb_list))
- nfs_list_add_request(data->req, &desc->pg_list);
- nfs_pageio_reset_write_mds(desc);
- desc->pg_recoalesce = 1;
- put_lseg(data->lseg);
+ struct nfs_pgio_header *hdr = data->header;
+
+ if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags)) {
+ list_splice_tail_init(&hdr->pages, &desc->pg_list);
+ nfs_pageio_reset_write_mds(desc);
+ desc->pg_recoalesce = 1;
+ }
nfs_writedata_release(data);
}
struct pnfs_layout_segment *lseg,
int how)
{
- struct inode *inode = wdata->inode;
+ struct nfs_pgio_header *hdr = wdata->header;
+ struct inode *inode = hdr->inode;
enum pnfs_try_status trypnfs;
struct nfs_server *nfss = NFS_SERVER(inode);
- wdata->mds_ops = call_ops;
- wdata->lseg = get_lseg(lseg);
+ hdr->mds_ops = call_ops;
dprintk("%s: Writing ino:%lu %u@%llu (how %d)\n", __func__,
inode->i_ino, wdata->args.count, wdata->args.offset, how);
-
trypnfs = nfss->pnfs_curr_ld->write_pagelist(wdata, how);
- if (trypnfs == PNFS_NOT_ATTEMPTED) {
- put_lseg(wdata->lseg);
- wdata->lseg = NULL;
- } else
+ if (trypnfs != PNFS_NOT_ATTEMPTED)
nfs_inc_stats(inode, NFSIOS_PNFS_WRITE);
-
dprintk("%s End (trypnfs:%d)\n", __func__, trypnfs);
return trypnfs;
}
while (!list_empty(head)) {
enum pnfs_try_status trypnfs;
- data = list_entry(head->next, struct nfs_write_data, list);
+ data = list_first_entry(head, struct nfs_write_data, list);
list_del_init(&data->list);
trypnfs = pnfs_try_to_write_data(data, call_ops, lseg, how);
put_lseg(lseg);
}
+static void pnfs_writehdr_free(struct nfs_pgio_header *hdr)
+{
+ put_lseg(hdr->lseg);
+ nfs_writehdr_free(hdr);
+}
+
int
pnfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc)
{
- LIST_HEAD(head);
+ struct nfs_write_header *whdr;
+ struct nfs_pgio_header *hdr;
int ret;
- ret = nfs_generic_flush(desc, &head);
- if (ret != 0) {
+ whdr = nfs_writehdr_alloc();
+ if (!whdr) {
+ desc->pg_completion_ops->error_cleanup(&desc->pg_list);
put_lseg(desc->pg_lseg);
desc->pg_lseg = NULL;
- return ret;
+ return -ENOMEM;
}
- pnfs_do_multiple_writes(desc, &head, desc->pg_ioflags);
- return 0;
+ hdr = &whdr->header;
+ nfs_pgheader_init(desc, hdr, pnfs_writehdr_free);
+ hdr->lseg = get_lseg(desc->pg_lseg);
+ atomic_inc(&hdr->refcnt);
+ ret = nfs_generic_flush(desc, hdr);
+ if (ret != 0) {
+ put_lseg(desc->pg_lseg);
+ desc->pg_lseg = NULL;
+ } else
+ pnfs_do_multiple_writes(desc, &hdr->rpc_list, desc->pg_ioflags);
+ if (atomic_dec_and_test(&hdr->refcnt))
+ hdr->completion_ops->completion(hdr);
+ return ret;
}
EXPORT_SYMBOL_GPL(pnfs_generic_pg_writepages);
-static void pnfs_ld_handle_read_error(struct nfs_read_data *data)
+int pnfs_read_done_resend_to_mds(struct inode *inode,
+ struct list_head *head,
+ const struct nfs_pgio_completion_ops *compl_ops)
{
struct nfs_pageio_descriptor pgio;
+ LIST_HEAD(failed);
- put_lseg(data->lseg);
- data->lseg = NULL;
- dprintk("pnfs write error = %d\n", data->pnfs_error);
- if (NFS_SERVER(data->inode)->pnfs_curr_ld->flags &
- PNFS_LAYOUTRET_ON_ERROR)
- pnfs_return_layout(data->inode);
-
- nfs_pageio_init_read_mds(&pgio, data->inode);
-
- while (!list_empty(&data->pages)) {
- struct nfs_page *req = nfs_list_entry(data->pages.next);
+ /* Resend all requests through the MDS */
+ nfs_pageio_init_read_mds(&pgio, inode, compl_ops);
+ while (!list_empty(head)) {
+ struct nfs_page *req = nfs_list_entry(head->next);
nfs_list_remove_request(req);
- nfs_pageio_add_request(&pgio, req);
+ if (!nfs_pageio_add_request(&pgio, req))
+ nfs_list_add_request(req, &failed);
}
nfs_pageio_complete(&pgio);
+
+ if (!list_empty(&failed)) {
+ list_move(&failed, head);
+ return -EIO;
+ }
+ return 0;
+}
+EXPORT_SYMBOL_GPL(pnfs_read_done_resend_to_mds);
+
+static void pnfs_ld_handle_read_error(struct nfs_read_data *data)
+{
+ struct nfs_pgio_header *hdr = data->header;
+
+ dprintk("pnfs read error = %d\n", hdr->pnfs_error);
+ if (NFS_SERVER(hdr->inode)->pnfs_curr_ld->flags &
+ PNFS_LAYOUTRET_ON_ERROR) {
+ clear_bit(NFS_INO_LAYOUTCOMMIT, &NFS_I(hdr->inode)->flags);
+ pnfs_return_layout(hdr->inode);
+ }
+ if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags))
+ data->task.tk_status = pnfs_read_done_resend_to_mds(hdr->inode,
+ &hdr->pages,
+ hdr->completion_ops);
}
/*
*/
void pnfs_ld_read_done(struct nfs_read_data *data)
{
- if (likely(!data->pnfs_error)) {
+ struct nfs_pgio_header *hdr = data->header;
+
+ if (likely(!hdr->pnfs_error)) {
__nfs4_read_done_cb(data);
- data->mds_ops->rpc_call_done(&data->task, data);
+ hdr->mds_ops->rpc_call_done(&data->task, data);
} else
pnfs_ld_handle_read_error(data);
- put_lseg(data->lseg);
- data->mds_ops->rpc_release(data);
+ hdr->mds_ops->rpc_release(data);
}
EXPORT_SYMBOL_GPL(pnfs_ld_read_done);
pnfs_read_through_mds(struct nfs_pageio_descriptor *desc,
struct nfs_read_data *data)
{
- list_splice_tail_init(&data->pages, &desc->pg_list);
- if (data->req && list_empty(&data->req->wb_list))
- nfs_list_add_request(data->req, &desc->pg_list);
- nfs_pageio_reset_read_mds(desc);
- desc->pg_recoalesce = 1;
+ struct nfs_pgio_header *hdr = data->header;
+
+ if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags)) {
+ list_splice_tail_init(&hdr->pages, &desc->pg_list);
+ nfs_pageio_reset_read_mds(desc);
+ desc->pg_recoalesce = 1;
+ }
nfs_readdata_release(data);
}
const struct rpc_call_ops *call_ops,
struct pnfs_layout_segment *lseg)
{
- struct inode *inode = rdata->inode;
+ struct nfs_pgio_header *hdr = rdata->header;
+ struct inode *inode = hdr->inode;
struct nfs_server *nfss = NFS_SERVER(inode);
enum pnfs_try_status trypnfs;
- rdata->mds_ops = call_ops;
- rdata->lseg = get_lseg(lseg);
+ hdr->mds_ops = call_ops;
dprintk("%s: Reading ino:%lu %u@%llu\n",
__func__, inode->i_ino, rdata->args.count, rdata->args.offset);
trypnfs = nfss->pnfs_curr_ld->read_pagelist(rdata);
- if (trypnfs == PNFS_NOT_ATTEMPTED) {
- put_lseg(rdata->lseg);
- rdata->lseg = NULL;
- } else {
+ if (trypnfs != PNFS_NOT_ATTEMPTED)
nfs_inc_stats(inode, NFSIOS_PNFS_READ);
- }
dprintk("%s End (trypnfs:%d)\n", __func__, trypnfs);
return trypnfs;
}
while (!list_empty(head)) {
enum pnfs_try_status trypnfs;
- data = list_entry(head->next, struct nfs_read_data, list);
+ data = list_first_entry(head, struct nfs_read_data, list);
list_del_init(&data->list);
trypnfs = pnfs_try_to_read_data(data, call_ops, lseg);
put_lseg(lseg);
}
+static void pnfs_readhdr_free(struct nfs_pgio_header *hdr)
+{
+ put_lseg(hdr->lseg);
+ nfs_readhdr_free(hdr);
+}
+
int
pnfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc)
{
- LIST_HEAD(head);
+ struct nfs_read_header *rhdr;
+ struct nfs_pgio_header *hdr;
int ret;
- ret = nfs_generic_pagein(desc, &head);
- if (ret != 0) {
+ rhdr = nfs_readhdr_alloc();
+ if (!rhdr) {
+ desc->pg_completion_ops->error_cleanup(&desc->pg_list);
+ ret = -ENOMEM;
put_lseg(desc->pg_lseg);
desc->pg_lseg = NULL;
return ret;
}
- pnfs_do_multiple_reads(desc, &head);
- return 0;
+ hdr = &rhdr->header;
+ nfs_pgheader_init(desc, hdr, pnfs_readhdr_free);
+ hdr->lseg = get_lseg(desc->pg_lseg);
+ atomic_inc(&hdr->refcnt);
+ ret = nfs_generic_pagein(desc, hdr);
+ if (ret != 0) {
+ put_lseg(desc->pg_lseg);
+ desc->pg_lseg = NULL;
+ } else
+ pnfs_do_multiple_reads(desc, &hdr->rpc_list);
+ if (atomic_dec_and_test(&hdr->refcnt))
+ hdr->completion_ops->completion(hdr);
+ return ret;
}
EXPORT_SYMBOL_GPL(pnfs_generic_pg_readpages);
void
pnfs_set_layoutcommit(struct nfs_write_data *wdata)
{
- struct nfs_inode *nfsi = NFS_I(wdata->inode);
+ struct nfs_pgio_header *hdr = wdata->header;
+ struct inode *inode = hdr->inode;
+ struct nfs_inode *nfsi = NFS_I(inode);
loff_t end_pos = wdata->mds_offset + wdata->res.count;
bool mark_as_dirty = false;
- spin_lock(&nfsi->vfs_inode.i_lock);
+ spin_lock(&inode->i_lock);
if (!test_and_set_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags)) {
mark_as_dirty = true;
dprintk("%s: Set layoutcommit for inode %lu ",
- __func__, wdata->inode->i_ino);
+ __func__, inode->i_ino);
}
- if (!test_and_set_bit(NFS_LSEG_LAYOUTCOMMIT, &wdata->lseg->pls_flags)) {
+ if (!test_and_set_bit(NFS_LSEG_LAYOUTCOMMIT, &hdr->lseg->pls_flags)) {
/* references matched in nfs4_layoutcommit_release */
- get_lseg(wdata->lseg);
+ get_lseg(hdr->lseg);
}
if (end_pos > nfsi->layout->plh_lwb)
nfsi->layout->plh_lwb = end_pos;
- spin_unlock(&nfsi->vfs_inode.i_lock);
+ spin_unlock(&inode->i_lock);
dprintk("%s: lseg %p end_pos %llu\n",
- __func__, wdata->lseg, nfsi->layout->plh_lwb);
+ __func__, hdr->lseg, nfsi->layout->plh_lwb);
/* if pnfs_layoutcommit_inode() runs between inode locks, the next one
* will be a noop because NFS_INO_LAYOUTCOMMIT will not be set */
if (mark_as_dirty)
- mark_inode_dirty_sync(wdata->inode);
+ mark_inode_dirty_sync(inode);
}
EXPORT_SYMBOL_GPL(pnfs_set_layoutcommit);
kfree(data);
goto out;
}
+
+struct nfs4_threshold *pnfs_mdsthreshold_alloc(void)
+{
+ struct nfs4_threshold *thp;
+
+ thp = kzalloc(sizeof(*thp), GFP_NOFS);
+ if (!thp) {
+ dprintk("%s mdsthreshold allocation failed\n", __func__);
+ return NULL;
+ }
+ return thp;
+}
NFS_LAYOUT_BULK_RECALL, /* bulk recall affecting layout */
NFS_LAYOUT_ROC, /* some lseg had roc bit set */
NFS_LAYOUT_DESTROYED, /* no new use of layout allowed */
+ NFS_LAYOUT_INVALID, /* layout is being destroyed */
};
enum layoutdriver_policy_flags {
const struct nfs_pageio_ops *pg_read_ops;
const struct nfs_pageio_ops *pg_write_ops;
+ struct pnfs_ds_commit_info *(*get_ds_info) (struct inode *inode);
void (*mark_request_commit) (struct nfs_page *req,
- struct pnfs_layout_segment *lseg);
- void (*clear_request_commit) (struct nfs_page *req);
- int (*scan_commit_lists) (struct inode *inode, int max, spinlock_t *lock);
- int (*commit_pagelist)(struct inode *inode, struct list_head *mds_pages, int how);
+ struct pnfs_layout_segment *lseg,
+ struct nfs_commit_info *cinfo);
+ void (*clear_request_commit) (struct nfs_page *req,
+ struct nfs_commit_info *cinfo);
+ int (*scan_commit_lists) (struct nfs_commit_info *cinfo,
+ int max);
+ void (*recover_commit_reqs) (struct list_head *list,
+ struct nfs_commit_info *cinfo);
+ int (*commit_pagelist)(struct inode *inode,
+ struct list_head *mds_pages,
+ int how,
+ struct nfs_commit_info *cinfo);
/*
* Return PNFS_ATTEMPTED to indicate the layout code has attempted
void get_layout_hdr(struct pnfs_layout_hdr *lo);
void put_lseg(struct pnfs_layout_segment *lseg);
-bool pnfs_pageio_init_read(struct nfs_pageio_descriptor *, struct inode *);
-bool pnfs_pageio_init_write(struct nfs_pageio_descriptor *, struct inode *, int);
+bool pnfs_pageio_init_read(struct nfs_pageio_descriptor *, struct inode *,
+ const struct nfs_pgio_completion_ops *);
+bool pnfs_pageio_init_write(struct nfs_pageio_descriptor *, struct inode *,
+ int, const struct nfs_pgio_completion_ops *);
void set_pnfs_layoutdriver(struct nfs_server *, const struct nfs_fh *, u32);
void unset_pnfs_layoutdriver(struct nfs_server *);
gfp_t gfp_flags);
void nfs4_deviceid_mark_client_invalid(struct nfs_client *clp);
+int pnfs_read_done_resend_to_mds(struct inode *inode, struct list_head *head,
+ const struct nfs_pgio_completion_ops *compl_ops);
+int pnfs_write_done_resend_to_mds(struct inode *inode, struct list_head *head,
+ const struct nfs_pgio_completion_ops *compl_ops);
+struct nfs4_threshold *pnfs_mdsthreshold_alloc(void);
/* nfs4_deviceid_flags */
enum {
}
static inline int
-pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how)
+pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how,
+ struct nfs_commit_info *cinfo)
{
- if (!test_and_clear_bit(NFS_INO_PNFS_COMMIT, &NFS_I(inode)->flags))
+ if (cinfo->ds == NULL || cinfo->ds->ncommitting == 0)
return PNFS_NOT_ATTEMPTED;
- return NFS_SERVER(inode)->pnfs_curr_ld->commit_pagelist(inode, mds_pages, how);
+ return NFS_SERVER(inode)->pnfs_curr_ld->commit_pagelist(inode, mds_pages, how, cinfo);
+}
+
+static inline struct pnfs_ds_commit_info *
+pnfs_get_ds_info(struct inode *inode)
+{
+ struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld;
+
+ if (ld == NULL || ld->get_ds_info == NULL)
+ return NULL;
+ return ld->get_ds_info(inode);
}
static inline bool
-pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg)
+pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg,
+ struct nfs_commit_info *cinfo)
{
struct inode *inode = req->wb_context->dentry->d_inode;
struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld;
if (lseg == NULL || ld->mark_request_commit == NULL)
return false;
- ld->mark_request_commit(req, lseg);
+ ld->mark_request_commit(req, lseg, cinfo);
return true;
}
static inline bool
-pnfs_clear_request_commit(struct nfs_page *req)
+pnfs_clear_request_commit(struct nfs_page *req, struct nfs_commit_info *cinfo)
{
struct inode *inode = req->wb_context->dentry->d_inode;
struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld;
if (ld == NULL || ld->clear_request_commit == NULL)
return false;
- ld->clear_request_commit(req);
+ ld->clear_request_commit(req, cinfo);
return true;
}
static inline int
-pnfs_scan_commit_lists(struct inode *inode, int max, spinlock_t *lock)
+pnfs_scan_commit_lists(struct inode *inode, struct nfs_commit_info *cinfo,
+ int max)
{
- struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld;
- int ret;
-
- if (ld == NULL || ld->scan_commit_lists == NULL)
+ if (cinfo->ds == NULL || cinfo->ds->nwritten == 0)
return 0;
- ret = ld->scan_commit_lists(inode, max, lock);
- if (ret != 0)
- set_bit(NFS_INO_PNFS_COMMIT, &NFS_I(inode)->flags);
- return ret;
+ else
+ return NFS_SERVER(inode)->pnfs_curr_ld->scan_commit_lists(cinfo, max);
+}
+
+static inline void
+pnfs_recover_commit_reqs(struct inode *inode, struct list_head *list,
+ struct nfs_commit_info *cinfo)
+{
+ if (cinfo->ds == NULL || cinfo->ds->nwritten == 0)
+ return;
+ NFS_SERVER(inode)->pnfs_curr_ld->recover_commit_reqs(list, cinfo);
}
/* Should the pNFS client commit and return the layout upon a setattr */
return 0;
}
+static inline bool
+pnfs_use_threshold(struct nfs4_threshold **dst, struct nfs4_threshold *src,
+ struct nfs_server *nfss)
+{
+ return (dst && src && src->bm != 0 &&
+ nfss->pnfs_curr_ld->id == src->l_type);
+}
+
#ifdef NFS_DEBUG
void nfs4_print_deviceid(const struct nfs4_deviceid *dev_id);
#else
{
}
-static inline bool pnfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, struct inode *inode)
+static inline bool pnfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, struct inode *inode,
+ const struct nfs_pgio_completion_ops *compl_ops)
{
return false;
}
-static inline bool pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *inode, int ioflags)
+static inline bool pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *inode, int ioflags,
+ const struct nfs_pgio_completion_ops *compl_ops)
{
return false;
}
static inline int
-pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how)
+pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how,
+ struct nfs_commit_info *cinfo)
{
return PNFS_NOT_ATTEMPTED;
}
+static inline struct pnfs_ds_commit_info *
+pnfs_get_ds_info(struct inode *inode)
+{
+ return NULL;
+}
+
static inline bool
-pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg)
+pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg,
+ struct nfs_commit_info *cinfo)
{
return false;
}
static inline bool
-pnfs_clear_request_commit(struct nfs_page *req)
+pnfs_clear_request_commit(struct nfs_page *req, struct nfs_commit_info *cinfo)
{
return false;
}
static inline int
-pnfs_scan_commit_lists(struct inode *inode, int max, spinlock_t *lock)
+pnfs_scan_commit_lists(struct inode *inode, struct nfs_commit_info *cinfo,
+ int max)
{
return 0;
}
+static inline void
+pnfs_recover_commit_reqs(struct inode *inode, struct list_head *list,
+ struct nfs_commit_info *cinfo)
+{
+}
+
static inline int pnfs_layoutcommit_inode(struct inode *inode, bool sync)
{
return 0;
}
+static inline bool
+pnfs_use_threshold(struct nfs4_threshold **dst, struct nfs4_threshold *src,
+ struct nfs_server *nfss)
+{
+ return false;
+}
+
+static inline struct nfs4_threshold *pnfs_mdsthreshold_alloc(void)
+{
+ return NULL;
+}
+
#endif /* CONFIG_NFS_V4_1 */
#endif /* FS_NFS_PNFS_H */
}
static int
-nfs_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, struct qstr *name,
+nfs_proc_lookup(struct inode *dir, struct qstr *name,
struct nfs_fh *fhandle, struct nfs_fattr *fattr)
{
struct nfs_diropargs arg = {
static int nfs_read_done(struct rpc_task *task, struct nfs_read_data *data)
{
+ struct inode *inode = data->header->inode;
+
if (nfs_async_handle_expired_key(task))
return -EAGAIN;
- nfs_invalidate_atime(data->inode);
+ nfs_invalidate_atime(inode);
if (task->tk_status >= 0) {
- nfs_refresh_inode(data->inode, data->res.fattr);
+ nfs_refresh_inode(inode, data->res.fattr);
/* Emulate the eof flag, which isn't normally needed in NFSv2
* as it is guaranteed to always return the file attributes
*/
static int nfs_write_done(struct rpc_task *task, struct nfs_write_data *data)
{
+ struct inode *inode = data->header->inode;
+
if (nfs_async_handle_expired_key(task))
return -EAGAIN;
if (task->tk_status >= 0)
- nfs_post_op_update_inode_force_wcc(data->inode, data->res.fattr);
+ nfs_post_op_update_inode_force_wcc(inode, data->res.fattr);
return 0;
}
rpc_call_start(task);
}
+static void nfs_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data)
+{
+ BUG();
+}
+
static void
-nfs_proc_commit_setup(struct nfs_write_data *data, struct rpc_message *msg)
+nfs_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg)
{
BUG();
}
.file_inode_ops = &nfs_file_inode_operations,
.file_ops = &nfs_file_operations,
.getroot = nfs_proc_get_root,
+ .submount = nfs_submount,
.getattr = nfs_proc_getattr,
.setattr = nfs_proc_setattr,
.lookup = nfs_proc_lookup,
.write_rpc_prepare = nfs_proc_write_rpc_prepare,
.write_done = nfs_write_done,
.commit_setup = nfs_proc_commit_setup,
+ .commit_rpc_prepare = nfs_proc_commit_rpc_prepare,
.lock = nfs_proc_lock,
.lock_check_bounds = nfs_lock_check_bounds,
.close_context = nfs_close_context,
#define NFSDBG_FACILITY NFSDBG_PAGECACHE
static const struct nfs_pageio_ops nfs_pageio_read_ops;
-static const struct rpc_call_ops nfs_read_partial_ops;
-static const struct rpc_call_ops nfs_read_full_ops;
+static const struct rpc_call_ops nfs_read_common_ops;
+static const struct nfs_pgio_completion_ops nfs_async_read_completion_ops;
static struct kmem_cache *nfs_rdata_cachep;
-struct nfs_read_data *nfs_readdata_alloc(unsigned int pagecount)
+struct nfs_read_header *nfs_readhdr_alloc(void)
{
- struct nfs_read_data *p;
-
- p = kmem_cache_zalloc(nfs_rdata_cachep, GFP_KERNEL);
- if (p) {
- INIT_LIST_HEAD(&p->pages);
- p->npages = pagecount;
- if (pagecount <= ARRAY_SIZE(p->page_array))
- p->pagevec = p->page_array;
- else {
- p->pagevec = kcalloc(pagecount, sizeof(struct page *), GFP_KERNEL);
- if (!p->pagevec) {
- kmem_cache_free(nfs_rdata_cachep, p);
- p = NULL;
- }
- }
+ struct nfs_read_header *rhdr;
+
+ rhdr = kmem_cache_zalloc(nfs_rdata_cachep, GFP_KERNEL);
+ if (rhdr) {
+ struct nfs_pgio_header *hdr = &rhdr->header;
+
+ INIT_LIST_HEAD(&hdr->pages);
+ INIT_LIST_HEAD(&hdr->rpc_list);
+ spin_lock_init(&hdr->lock);
+ atomic_set(&hdr->refcnt, 0);
+ }
+ return rhdr;
+}
+
+static struct nfs_read_data *nfs_readdata_alloc(struct nfs_pgio_header *hdr,
+ unsigned int pagecount)
+{
+ struct nfs_read_data *data, *prealloc;
+
+ prealloc = &container_of(hdr, struct nfs_read_header, header)->rpc_data;
+ if (prealloc->header == NULL)
+ data = prealloc;
+ else
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
+ goto out;
+
+ if (nfs_pgarray_set(&data->pages, pagecount)) {
+ data->header = hdr;
+ atomic_inc(&hdr->refcnt);
+ } else {
+ if (data != prealloc)
+ kfree(data);
+ data = NULL;
}
- return p;
+out:
+ return data;
}
-void nfs_readdata_free(struct nfs_read_data *p)
+void nfs_readhdr_free(struct nfs_pgio_header *hdr)
{
- if (p && (p->pagevec != &p->page_array[0]))
- kfree(p->pagevec);
- kmem_cache_free(nfs_rdata_cachep, p);
+ struct nfs_read_header *rhdr = container_of(hdr, struct nfs_read_header, header);
+
+ kmem_cache_free(nfs_rdata_cachep, rhdr);
}
void nfs_readdata_release(struct nfs_read_data *rdata)
{
+ struct nfs_pgio_header *hdr = rdata->header;
+ struct nfs_read_header *read_header = container_of(hdr, struct nfs_read_header, header);
+
put_nfs_open_context(rdata->args.context);
- nfs_readdata_free(rdata);
+ if (rdata->pages.pagevec != rdata->pages.page_array)
+ kfree(rdata->pages.pagevec);
+ if (rdata != &read_header->rpc_data)
+ kfree(rdata);
+ else
+ rdata->header = NULL;
+ if (atomic_dec_and_test(&hdr->refcnt))
+ hdr->completion_ops->completion(hdr);
}
static
return 0;
}
-static void nfs_readpage_truncate_uninitialised_page(struct nfs_read_data *data)
-{
- unsigned int remainder = data->args.count - data->res.count;
- unsigned int base = data->args.pgbase + data->res.count;
- unsigned int pglen;
- struct page **pages;
-
- if (data->res.eof == 0 || remainder == 0)
- return;
- /*
- * Note: "remainder" can never be negative, since we check for
- * this in the XDR code.
- */
- pages = &data->args.pages[base >> PAGE_CACHE_SHIFT];
- base &= ~PAGE_CACHE_MASK;
- pglen = PAGE_CACHE_SIZE - base;
- for (;;) {
- if (remainder <= pglen) {
- zero_user(*pages, base, remainder);
- break;
- }
- zero_user(*pages, base, pglen);
- pages++;
- remainder -= pglen;
- pglen = PAGE_CACHE_SIZE;
- base = 0;
- }
-}
-
void nfs_pageio_init_read_mds(struct nfs_pageio_descriptor *pgio,
- struct inode *inode)
+ struct inode *inode,
+ const struct nfs_pgio_completion_ops *compl_ops)
{
- nfs_pageio_init(pgio, inode, &nfs_pageio_read_ops,
+ nfs_pageio_init(pgio, inode, &nfs_pageio_read_ops, compl_ops,
NFS_SERVER(inode)->rsize, 0);
}
}
EXPORT_SYMBOL_GPL(nfs_pageio_reset_read_mds);
-static void nfs_pageio_init_read(struct nfs_pageio_descriptor *pgio,
- struct inode *inode)
+void nfs_pageio_init_read(struct nfs_pageio_descriptor *pgio,
+ struct inode *inode,
+ const struct nfs_pgio_completion_ops *compl_ops)
{
- if (!pnfs_pageio_init_read(pgio, inode))
- nfs_pageio_init_read_mds(pgio, inode);
+ if (!pnfs_pageio_init_read(pgio, inode, compl_ops))
+ nfs_pageio_init_read_mds(pgio, inode, compl_ops);
}
int nfs_readpage_async(struct nfs_open_context *ctx, struct inode *inode,
if (len < PAGE_CACHE_SIZE)
zero_user_segment(page, len, PAGE_CACHE_SIZE);
- nfs_pageio_init_read(&pgio, inode);
+ nfs_pageio_init_read(&pgio, inode, &nfs_async_read_completion_ops);
nfs_pageio_add_request(&pgio, new);
nfs_pageio_complete(&pgio);
+ NFS_I(inode)->read_io += pgio.pg_bytes_written;
return 0;
}
nfs_release_request(req);
}
-int nfs_initiate_read(struct nfs_read_data *data, struct rpc_clnt *clnt,
- const struct rpc_call_ops *call_ops)
+/* Note io was page aligned */
+static void nfs_read_completion(struct nfs_pgio_header *hdr)
+{
+ unsigned long bytes = 0;
+
+ if (test_bit(NFS_IOHDR_REDO, &hdr->flags))
+ goto out;
+ while (!list_empty(&hdr->pages)) {
+ struct nfs_page *req = nfs_list_entry(hdr->pages.next);
+ struct page *page = req->wb_page;
+
+ if (test_bit(NFS_IOHDR_EOF, &hdr->flags)) {
+ if (bytes > hdr->good_bytes)
+ zero_user(page, 0, PAGE_SIZE);
+ else if (hdr->good_bytes - bytes < PAGE_SIZE)
+ zero_user_segment(page,
+ hdr->good_bytes & ~PAGE_MASK,
+ PAGE_SIZE);
+ }
+ bytes += req->wb_bytes;
+ if (test_bit(NFS_IOHDR_ERROR, &hdr->flags)) {
+ if (bytes <= hdr->good_bytes)
+ SetPageUptodate(page);
+ } else
+ SetPageUptodate(page);
+ nfs_list_remove_request(req);
+ nfs_readpage_release(req);
+ }
+out:
+ hdr->release(hdr);
+}
+
+int nfs_initiate_read(struct rpc_clnt *clnt,
+ struct nfs_read_data *data,
+ const struct rpc_call_ops *call_ops, int flags)
{
- struct inode *inode = data->inode;
+ struct inode *inode = data->header->inode;
int swap_flags = IS_SWAPFILE(inode) ? NFS_RPC_SWAPFLAGS : 0;
struct rpc_task *task;
struct rpc_message msg = {
.rpc_argp = &data->args,
.rpc_resp = &data->res,
- .rpc_cred = data->cred,
+ .rpc_cred = data->header->cred,
};
struct rpc_task_setup task_setup_data = {
.task = &data->task,
.callback_ops = call_ops,
.callback_data = data,
.workqueue = nfsiod_workqueue,
- .flags = RPC_TASK_ASYNC | swap_flags,
+ .flags = RPC_TASK_ASYNC | swap_flags | flags,
};
/* Set up the initial task struct. */
/*
* Set up the NFS read request struct
*/
-static void nfs_read_rpcsetup(struct nfs_page *req, struct nfs_read_data *data,
+static void nfs_read_rpcsetup(struct nfs_read_data *data,
unsigned int count, unsigned int offset)
{
- struct inode *inode = req->wb_context->dentry->d_inode;
-
- data->req = req;
- data->inode = inode;
- data->cred = req->wb_context->cred;
+ struct nfs_page *req = data->header->req;
- data->args.fh = NFS_FH(inode);
+ data->args.fh = NFS_FH(data->header->inode);
data->args.offset = req_offset(req) + offset;
data->args.pgbase = req->wb_pgbase + offset;
- data->args.pages = data->pagevec;
+ data->args.pages = data->pages.pagevec;
data->args.count = count;
data->args.context = get_nfs_open_context(req->wb_context);
data->args.lock_context = req->wb_lock_context;
static int nfs_do_read(struct nfs_read_data *data,
const struct rpc_call_ops *call_ops)
{
- struct inode *inode = data->args.context->dentry->d_inode;
+ struct inode *inode = data->header->inode;
- return nfs_initiate_read(data, NFS_CLIENT(inode), call_ops);
+ return nfs_initiate_read(NFS_CLIENT(inode), data, call_ops, 0);
}
static int
while (!list_empty(head)) {
int ret2;
- data = list_entry(head->next, struct nfs_read_data, list);
+ data = list_first_entry(head, struct nfs_read_data, list);
list_del_init(&data->list);
ret2 = nfs_do_read(data, call_ops);
}
}
+static const struct nfs_pgio_completion_ops nfs_async_read_completion_ops = {
+ .error_cleanup = nfs_async_read_error,
+ .completion = nfs_read_completion,
+};
+
+static void nfs_pagein_error(struct nfs_pageio_descriptor *desc,
+ struct nfs_pgio_header *hdr)
+{
+ set_bit(NFS_IOHDR_REDO, &hdr->flags);
+ while (!list_empty(&hdr->rpc_list)) {
+ struct nfs_read_data *data = list_first_entry(&hdr->rpc_list,
+ struct nfs_read_data, list);
+ list_del(&data->list);
+ nfs_readdata_release(data);
+ }
+ desc->pg_completion_ops->error_cleanup(&desc->pg_list);
+}
+
/*
* Generate multiple requests to fill a single page.
*
* won't see the new data until our attribute cache is updated. This is more
* or less conventional NFS client behavior.
*/
-static int nfs_pagein_multi(struct nfs_pageio_descriptor *desc, struct list_head *res)
+static int nfs_pagein_multi(struct nfs_pageio_descriptor *desc,
+ struct nfs_pgio_header *hdr)
{
- struct nfs_page *req = nfs_list_entry(desc->pg_list.next);
+ struct nfs_page *req = hdr->req;
struct page *page = req->wb_page;
struct nfs_read_data *data;
size_t rsize = desc->pg_bsize, nbytes;
unsigned int offset;
- int requests = 0;
- int ret = 0;
-
- nfs_list_remove_request(req);
offset = 0;
nbytes = desc->pg_count;
do {
size_t len = min(nbytes,rsize);
- data = nfs_readdata_alloc(1);
- if (!data)
- goto out_bad;
- data->pagevec[0] = page;
- nfs_read_rpcsetup(req, data, len, offset);
- list_add(&data->list, res);
- requests++;
+ data = nfs_readdata_alloc(hdr, 1);
+ if (!data) {
+ nfs_pagein_error(desc, hdr);
+ return -ENOMEM;
+ }
+ data->pages.pagevec[0] = page;
+ nfs_read_rpcsetup(data, len, offset);
+ list_add(&data->list, &hdr->rpc_list);
nbytes -= len;
offset += len;
- } while(nbytes != 0);
- atomic_set(&req->wb_complete, requests);
- desc->pg_rpc_callops = &nfs_read_partial_ops;
- return ret;
-out_bad:
- while (!list_empty(res)) {
- data = list_entry(res->next, struct nfs_read_data, list);
- list_del(&data->list);
- nfs_readdata_release(data);
- }
- nfs_readpage_release(req);
- return -ENOMEM;
+ } while (nbytes != 0);
+
+ nfs_list_remove_request(req);
+ nfs_list_add_request(req, &hdr->pages);
+ desc->pg_rpc_callops = &nfs_read_common_ops;
+ return 0;
}
-static int nfs_pagein_one(struct nfs_pageio_descriptor *desc, struct list_head *res)
+static int nfs_pagein_one(struct nfs_pageio_descriptor *desc,
+ struct nfs_pgio_header *hdr)
{
struct nfs_page *req;
struct page **pages;
- struct nfs_read_data *data;
+ struct nfs_read_data *data;
struct list_head *head = &desc->pg_list;
- int ret = 0;
- data = nfs_readdata_alloc(nfs_page_array_len(desc->pg_base,
- desc->pg_count));
+ data = nfs_readdata_alloc(hdr, nfs_page_array_len(desc->pg_base,
+ desc->pg_count));
if (!data) {
- nfs_async_read_error(head);
- ret = -ENOMEM;
- goto out;
+ nfs_pagein_error(desc, hdr);
+ return -ENOMEM;
}
- pages = data->pagevec;
+ pages = data->pages.pagevec;
while (!list_empty(head)) {
req = nfs_list_entry(head->next);
nfs_list_remove_request(req);
- nfs_list_add_request(req, &data->pages);
+ nfs_list_add_request(req, &hdr->pages);
*pages++ = req->wb_page;
}
- req = nfs_list_entry(data->pages.next);
- nfs_read_rpcsetup(req, data, desc->pg_count, 0);
- list_add(&data->list, res);
- desc->pg_rpc_callops = &nfs_read_full_ops;
-out:
- return ret;
+ nfs_read_rpcsetup(data, desc->pg_count, 0);
+ list_add(&data->list, &hdr->rpc_list);
+ desc->pg_rpc_callops = &nfs_read_common_ops;
+ return 0;
}
-int nfs_generic_pagein(struct nfs_pageio_descriptor *desc, struct list_head *head)
+int nfs_generic_pagein(struct nfs_pageio_descriptor *desc,
+ struct nfs_pgio_header *hdr)
{
if (desc->pg_bsize < PAGE_CACHE_SIZE)
- return nfs_pagein_multi(desc, head);
- return nfs_pagein_one(desc, head);
+ return nfs_pagein_multi(desc, hdr);
+ return nfs_pagein_one(desc, hdr);
}
static int nfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc)
{
- LIST_HEAD(head);
+ struct nfs_read_header *rhdr;
+ struct nfs_pgio_header *hdr;
int ret;
- ret = nfs_generic_pagein(desc, &head);
+ rhdr = nfs_readhdr_alloc();
+ if (!rhdr) {
+ desc->pg_completion_ops->error_cleanup(&desc->pg_list);
+ return -ENOMEM;
+ }
+ hdr = &rhdr->header;
+ nfs_pgheader_init(desc, hdr, nfs_readhdr_free);
+ atomic_inc(&hdr->refcnt);
+ ret = nfs_generic_pagein(desc, hdr);
if (ret == 0)
- ret = nfs_do_multiple_reads(&head, desc->pg_rpc_callops);
+ ret = nfs_do_multiple_reads(&hdr->rpc_list,
+ desc->pg_rpc_callops);
+ if (atomic_dec_and_test(&hdr->refcnt))
+ hdr->completion_ops->completion(hdr);
return ret;
}
*/
int nfs_readpage_result(struct rpc_task *task, struct nfs_read_data *data)
{
+ struct inode *inode = data->header->inode;
int status;
dprintk("NFS: %s: %5u, (status %d)\n", __func__, task->tk_pid,
task->tk_status);
- status = NFS_PROTO(data->inode)->read_done(task, data);
+ status = NFS_PROTO(inode)->read_done(task, data);
if (status != 0)
return status;
- nfs_add_stats(data->inode, NFSIOS_SERVERREADBYTES, data->res.count);
+ nfs_add_stats(inode, NFSIOS_SERVERREADBYTES, data->res.count);
if (task->tk_status == -ESTALE) {
- set_bit(NFS_INO_STALE, &NFS_I(data->inode)->flags);
- nfs_mark_for_revalidate(data->inode);
+ set_bit(NFS_INO_STALE, &NFS_I(inode)->flags);
+ nfs_mark_for_revalidate(inode);
}
return 0;
}
struct nfs_readargs *argp = &data->args;
struct nfs_readres *resp = &data->res;
- if (resp->eof || resp->count == argp->count)
- return;
-
/* This is a short read! */
- nfs_inc_stats(data->inode, NFSIOS_SHORTREAD);
+ nfs_inc_stats(data->header->inode, NFSIOS_SHORTREAD);
/* Has the server at least made some progress? */
- if (resp->count == 0)
+ if (resp->count == 0) {
+ nfs_set_pgio_error(data->header, -EIO, argp->offset);
return;
-
+ }
/* Yes, so retry the read at the end of the data */
data->mds_offset += resp->count;
argp->offset += resp->count;
rpc_restart_call_prepare(task);
}
-/*
- * Handle a read reply that fills part of a page.
- */
-static void nfs_readpage_result_partial(struct rpc_task *task, void *calldata)
+static void nfs_readpage_result_common(struct rpc_task *task, void *calldata)
{
struct nfs_read_data *data = calldata;
-
+ struct nfs_pgio_header *hdr = data->header;
+
+ /* Note the only returns of nfs_readpage_result are 0 and -EAGAIN */
if (nfs_readpage_result(task, data) != 0)
return;
if (task->tk_status < 0)
- return;
-
- nfs_readpage_truncate_uninitialised_page(data);
- nfs_readpage_retry(task, data);
+ nfs_set_pgio_error(hdr, task->tk_status, data->args.offset);
+ else if (data->res.eof) {
+ loff_t bound;
+
+ bound = data->args.offset + data->res.count;
+ spin_lock(&hdr->lock);
+ if (bound < hdr->io_start + hdr->good_bytes) {
+ set_bit(NFS_IOHDR_EOF, &hdr->flags);
+ clear_bit(NFS_IOHDR_ERROR, &hdr->flags);
+ hdr->good_bytes = bound - hdr->io_start;
+ }
+ spin_unlock(&hdr->lock);
+ } else if (data->res.count != data->args.count)
+ nfs_readpage_retry(task, data);
}
-static void nfs_readpage_release_partial(void *calldata)
+static void nfs_readpage_release_common(void *calldata)
{
- struct nfs_read_data *data = calldata;
- struct nfs_page *req = data->req;
- struct page *page = req->wb_page;
- int status = data->task.tk_status;
-
- if (status < 0)
- set_bit(PG_PARTIAL_READ_FAILED, &req->wb_flags);
-
- if (atomic_dec_and_test(&req->wb_complete)) {
- if (!test_bit(PG_PARTIAL_READ_FAILED, &req->wb_flags))
- SetPageUptodate(page);
- nfs_readpage_release(req);
- }
nfs_readdata_release(calldata);
}
void nfs_read_prepare(struct rpc_task *task, void *calldata)
{
struct nfs_read_data *data = calldata;
- NFS_PROTO(data->inode)->read_rpc_prepare(task, data);
-}
-
-static const struct rpc_call_ops nfs_read_partial_ops = {
- .rpc_call_prepare = nfs_read_prepare,
- .rpc_call_done = nfs_readpage_result_partial,
- .rpc_release = nfs_readpage_release_partial,
-};
-
-static void nfs_readpage_set_pages_uptodate(struct nfs_read_data *data)
-{
- unsigned int count = data->res.count;
- unsigned int base = data->args.pgbase;
- struct page **pages;
-
- if (data->res.eof)
- count = data->args.count;
- if (unlikely(count == 0))
- return;
- pages = &data->args.pages[base >> PAGE_CACHE_SHIFT];
- base &= ~PAGE_CACHE_MASK;
- count += base;
- for (;count >= PAGE_CACHE_SIZE; count -= PAGE_CACHE_SIZE, pages++)
- SetPageUptodate(*pages);
- if (count == 0)
- return;
- /* Was this a short read? */
- if (data->res.eof || data->res.count == data->args.count)
- SetPageUptodate(*pages);
-}
-
-/*
- * This is the callback from RPC telling us whether a reply was
- * received or some error occurred (timeout or socket shutdown).
- */
-static void nfs_readpage_result_full(struct rpc_task *task, void *calldata)
-{
- struct nfs_read_data *data = calldata;
-
- if (nfs_readpage_result(task, data) != 0)
- return;
- if (task->tk_status < 0)
- return;
- /*
- * Note: nfs_readpage_retry may change the values of
- * data->args. In the multi-page case, we therefore need
- * to ensure that we call nfs_readpage_set_pages_uptodate()
- * first.
- */
- nfs_readpage_truncate_uninitialised_page(data);
- nfs_readpage_set_pages_uptodate(data);
- nfs_readpage_retry(task, data);
-}
-
-static void nfs_readpage_release_full(void *calldata)
-{
- struct nfs_read_data *data = calldata;
-
- while (!list_empty(&data->pages)) {
- struct nfs_page *req = nfs_list_entry(data->pages.next);
-
- nfs_list_remove_request(req);
- nfs_readpage_release(req);
- }
- nfs_readdata_release(calldata);
+ NFS_PROTO(data->header->inode)->read_rpc_prepare(task, data);
}
-static const struct rpc_call_ops nfs_read_full_ops = {
+static const struct rpc_call_ops nfs_read_common_ops = {
.rpc_call_prepare = nfs_read_prepare,
- .rpc_call_done = nfs_readpage_result_full,
- .rpc_release = nfs_readpage_release_full,
+ .rpc_call_done = nfs_readpage_result_common,
+ .rpc_release = nfs_readpage_release_common,
};
/*
if (ret == 0)
goto read_complete; /* all pages were read */
- nfs_pageio_init_read(&pgio, inode);
+ nfs_pageio_init_read(&pgio, inode, &nfs_async_read_completion_ops);
ret = read_cache_pages(mapping, pages, readpage_async_filler, &desc);
nfs_pageio_complete(&pgio);
+ NFS_I(inode)->read_io += pgio.pg_bytes_written;
npages = (pgio.pg_bytes_written + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
nfs_add_stats(inode, NFSIOS_READPAGES, npages);
read_complete:
int __init nfs_init_readpagecache(void)
{
nfs_rdata_cachep = kmem_cache_create("nfs_read_data",
- sizeof(struct nfs_read_data),
+ sizeof(struct nfs_read_header),
0, SLAB_HWCACHE_ALIGN,
NULL);
if (nfs_rdata_cachep == NULL)
#include "pnfs.h"
#define NFSDBG_FACILITY NFSDBG_VFS
+#define NFS_TEXT_DATA 1
#ifdef CONFIG_NFS_V3
#define NFS_DEFAULT_VERSION 3
{ Opt_vers_err, NULL }
};
+struct nfs_mount_info {
+ void (*fill_super)(struct super_block *, struct nfs_mount_info *);
+ int (*set_security)(struct super_block *, struct dentry *, struct nfs_mount_info *);
+ struct nfs_parsed_mount_data *parsed;
+ struct nfs_clone_mount *cloned;
+ struct nfs_fh *mntfh;
+};
+
static void nfs_umount_begin(struct super_block *);
static int nfs_statfs(struct dentry *, struct kstatfs *);
static int nfs_show_options(struct seq_file *, struct dentry *);
static int nfs_show_devname(struct seq_file *, struct dentry *);
static int nfs_show_path(struct seq_file *, struct dentry *);
static int nfs_show_stats(struct seq_file *, struct dentry *);
+static struct dentry *nfs_fs_mount_common(struct file_system_type *,
+ struct nfs_server *, int, const char *, struct nfs_mount_info *);
static struct dentry *nfs_fs_mount(struct file_system_type *,
int, const char *, void *);
static struct dentry *nfs_xdev_mount(struct file_system_type *fs_type,
};
#ifdef CONFIG_NFS_V4
-static int nfs4_validate_text_mount_data(void *options,
+static void nfs4_validate_mount_flags(struct nfs_parsed_mount_data *);
+static int nfs4_validate_mount_data(void *options,
struct nfs_parsed_mount_data *args, const char *dev_name);
static struct dentry *nfs4_try_mount(int flags, const char *dev_name,
- struct nfs_parsed_mount_data *data);
-static struct dentry *nfs4_mount(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *raw_data);
+ struct nfs_mount_info *mount_info);
static struct dentry *nfs4_remote_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *raw_data);
static struct dentry *nfs4_xdev_mount(struct file_system_type *fs_type,
static struct file_system_type nfs4_fs_type = {
.owner = THIS_MODULE,
.name = "nfs4",
- .mount = nfs4_mount,
+ .mount = nfs_fs_mount,
.kill_sb = nfs4_kill_super,
.fs_flags = FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA,
};
static void show_implementation_id(struct seq_file *m, struct nfs_server *nfss)
{
- if (nfss->nfs_client && nfss->nfs_client->impl_id) {
- struct nfs41_impl_id *impl_id = nfss->nfs_client->impl_id;
+ if (nfss->nfs_client && nfss->nfs_client->cl_implid) {
+ struct nfs41_impl_id *impl_id = nfss->nfs_client->cl_implid;
seq_printf(m, "\n\timpl_id:\tname='%s',domain='%s',"
"date='%llu,%u'",
impl_id->name, impl_id->domain,
rpc_killall_tasks(rpc);
}
-static struct nfs_parsed_mount_data *nfs_alloc_parsed_mount_data(unsigned int version)
+static struct nfs_parsed_mount_data *nfs_alloc_parsed_mount_data(void)
{
struct nfs_parsed_mount_data *data;
data->nfs_server.protocol = XPRT_TRANSPORT_TCP;
data->auth_flavors[0] = RPC_AUTH_UNIX;
data->auth_flavor_len = 1;
- data->version = version;
data->minorversion = 0;
+ data->need_mount = true;
data->net = current->nsproxy->net_ns;
security_init_mnt_opts(&data->lsm_opts);
}
* Use the remote server's MOUNT service to request the NFS file handle
* corresponding to the provided path.
*/
-static int nfs_try_mount(struct nfs_parsed_mount_data *args,
- struct nfs_fh *root_fh)
+static int nfs_request_mount(struct nfs_parsed_mount_data *args,
+ struct nfs_fh *root_fh)
{
rpc_authflavor_t server_authlist[NFS_MAX_SECFLAVORS];
unsigned int server_authlist_len = ARRAY_SIZE(server_authlist);
return nfs_walk_authlist(args, &request);
}
+static struct dentry *nfs_try_mount(int flags, const char *dev_name,
+ struct nfs_mount_info *mount_info)
+{
+ int status;
+ struct nfs_server *server;
+
+ if (mount_info->parsed->need_mount) {
+ status = nfs_request_mount(mount_info->parsed, mount_info->mntfh);
+ if (status)
+ return ERR_PTR(status);
+ }
+
+ /* Get a volume representation */
+ server = nfs_create_server(mount_info->parsed, mount_info->mntfh);
+ if (IS_ERR(server))
+ return ERR_CAST(server);
+
+ return nfs_fs_mount_common(&nfs_fs_type, server, flags, dev_name, mount_info);
+}
+
/*
* Split "dev_name" into "hostname:export_path".
*
* + breaking back: trying proto=udp after proto=tcp, v2 after v3,
* mountproto=tcp after mountproto=udp, and so on
*/
-static int nfs_validate_mount_data(void *options,
- struct nfs_parsed_mount_data *args,
- struct nfs_fh *mntfh,
- const char *dev_name)
+static int nfs23_validate_mount_data(void *options,
+ struct nfs_parsed_mount_data *args,
+ struct nfs_fh *mntfh,
+ const char *dev_name)
{
struct nfs_mount_data *data = (struct nfs_mount_data *)options;
struct sockaddr *sap = (struct sockaddr *)&args->nfs_server.address;
args->acregmax = data->acregmax;
args->acdirmin = data->acdirmin;
args->acdirmax = data->acdirmax;
+ args->need_mount = false;
memcpy(sap, &data->addr, sizeof(data->addr));
args->nfs_server.addrlen = sizeof(data->addr);
}
break;
- default: {
- int status;
-
- if (nfs_parse_mount_options((char *)options, args) == 0)
- return -EINVAL;
-
- if (!nfs_verify_server_address(sap))
- goto out_no_address;
-
- if (args->version == 4)
-#ifdef CONFIG_NFS_V4
- return nfs4_validate_text_mount_data(options,
- args, dev_name);
-#else
- goto out_v4_not_compiled;
-#endif
-
- nfs_set_port(sap, &args->nfs_server.port, 0);
-
- nfs_set_mount_transport_protocol(args);
-
- status = nfs_parse_devname(dev_name,
- &args->nfs_server.hostname,
- PAGE_SIZE,
- &args->nfs_server.export_path,
- NFS_MAXPATHLEN);
- if (!status)
- status = nfs_try_mount(args, mntfh);
-
- kfree(args->nfs_server.export_path);
- args->nfs_server.export_path = NULL;
-
- if (status)
- return status;
-
- break;
- }
+ default:
+ return NFS_TEXT_DATA;
}
#ifndef CONFIG_NFS_V3
return -EPROTONOSUPPORT;
#endif /* !CONFIG_NFS_V3 */
-#ifndef CONFIG_NFS_V4
-out_v4_not_compiled:
- dfprintk(MOUNT, "NFS: NFSv4 is not compiled into kernel\n");
- return -EPROTONOSUPPORT;
-#endif /* !CONFIG_NFS_V4 */
-
out_nomem:
dfprintk(MOUNT, "NFS: not enough memory to handle mount options\n");
return -ENOMEM;
return -EINVAL;
}
+#ifdef CONFIG_NFS_V4
+static int nfs_validate_mount_data(struct file_system_type *fs_type,
+ void *options,
+ struct nfs_parsed_mount_data *args,
+ struct nfs_fh *mntfh,
+ const char *dev_name)
+{
+ if (fs_type == &nfs_fs_type)
+ return nfs23_validate_mount_data(options, args, mntfh, dev_name);
+ return nfs4_validate_mount_data(options, args, dev_name);
+}
+#else
+static int nfs_validate_mount_data(struct file_system_type *fs_type,
+ void *options,
+ struct nfs_parsed_mount_data *args,
+ struct nfs_fh *mntfh,
+ const char *dev_name)
+{
+ return nfs23_validate_mount_data(options, args, mntfh, dev_name);
+}
+#endif
+
+static int nfs_validate_text_mount_data(void *options,
+ struct nfs_parsed_mount_data *args,
+ const char *dev_name)
+{
+ int port = 0;
+ int max_namelen = PAGE_SIZE;
+ int max_pathlen = NFS_MAXPATHLEN;
+ struct sockaddr *sap = (struct sockaddr *)&args->nfs_server.address;
+
+ if (nfs_parse_mount_options((char *)options, args) == 0)
+ return -EINVAL;
+
+ if (!nfs_verify_server_address(sap))
+ goto out_no_address;
+
+ if (args->version == 4) {
+#ifdef CONFIG_NFS_V4
+ port = NFS_PORT;
+ max_namelen = NFS4_MAXNAMLEN;
+ max_pathlen = NFS4_MAXPATHLEN;
+ nfs_validate_transport_protocol(args);
+ nfs4_validate_mount_flags(args);
+#else
+ goto out_v4_not_compiled;
+#endif /* CONFIG_NFS_V4 */
+ } else
+ nfs_set_mount_transport_protocol(args);
+
+ nfs_set_port(sap, &args->nfs_server.port, port);
+
+ if (args->auth_flavor_len > 1)
+ goto out_bad_auth;
+
+ return nfs_parse_devname(dev_name,
+ &args->nfs_server.hostname,
+ max_namelen,
+ &args->nfs_server.export_path,
+ max_pathlen);
+
+#ifndef CONFIG_NFS_V4
+out_v4_not_compiled:
+ dfprintk(MOUNT, "NFS: NFSv4 is not compiled into kernel\n");
+ return -EPROTONOSUPPORT;
+#endif /* !CONFIG_NFS_V4 */
+
+out_no_address:
+ dfprintk(MOUNT, "NFS: mount program didn't pass remote address\n");
+ return -EINVAL;
+
+out_bad_auth:
+ dfprintk(MOUNT, "NFS: Too many RPC auth flavours specified\n");
+ return -EINVAL;
+}
+
static int
nfs_compare_remount_data(struct nfs_server *nfss,
struct nfs_parsed_mount_data *data)
* Finish setting up an NFS2/3 superblock
*/
static void nfs_fill_super(struct super_block *sb,
- struct nfs_parsed_mount_data *data)
+ struct nfs_mount_info *mount_info)
{
+ struct nfs_parsed_mount_data *data = mount_info->parsed;
struct nfs_server *server = NFS_SB(sb);
sb->s_blocksize_bits = 0;
* Finish setting up a cloned NFS2/3 superblock
*/
static void nfs_clone_super(struct super_block *sb,
- const struct super_block *old_sb)
+ struct nfs_mount_info *mount_info)
{
+ const struct super_block *old_sb = mount_info->cloned->sb;
struct nfs_server *server = NFS_SB(sb);
sb->s_blocksize_bits = old_sb->s_blocksize_bits;
return nfs_compare_mount_options(sb, server, mntflags);
}
+#ifdef CONFIG_NFS_FSCACHE
+static void nfs_get_cache_cookie(struct super_block *sb,
+ struct nfs_parsed_mount_data *parsed,
+ struct nfs_clone_mount *cloned)
+{
+ char *uniq = NULL;
+ int ulen = 0;
+
+ if (parsed && parsed->fscache_uniq) {
+ uniq = parsed->fscache_uniq;
+ ulen = strlen(parsed->fscache_uniq);
+ } else if (cloned) {
+ struct nfs_server *mnt_s = NFS_SB(cloned->sb);
+ if (mnt_s->fscache_key) {
+ uniq = mnt_s->fscache_key->key.uniquifier;
+ ulen = mnt_s->fscache_key->key.uniq_len;
+ };
+ }
+
+ nfs_fscache_get_super_cookie(sb, uniq, ulen);
+}
+#else
+static void nfs_get_cache_cookie(struct super_block *sb,
+ struct nfs_parsed_mount_data *parsed,
+ struct nfs_clone_mount *cloned)
+{
+}
+#endif
+
static int nfs_bdi_register(struct nfs_server *server)
{
return bdi_register_dev(&server->backing_dev_info, server->s_dev);
}
-static struct dentry *nfs_fs_mount(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *raw_data)
+static int nfs_set_sb_security(struct super_block *s, struct dentry *mntroot,
+ struct nfs_mount_info *mount_info)
+{
+ return security_sb_set_mnt_opts(s, &mount_info->parsed->lsm_opts);
+}
+
+static int nfs_clone_sb_security(struct super_block *s, struct dentry *mntroot,
+ struct nfs_mount_info *mount_info)
+{
+ /* clone any lsm security options from the parent to the new sb */
+ security_sb_clone_mnt_opts(mount_info->cloned->sb, s);
+ if (mntroot->d_inode->i_op != NFS_SB(s)->nfs_client->rpc_ops->dir_inode_ops)
+ return -ESTALE;
+ return 0;
+}
+
+static struct dentry *nfs_fs_mount_common(struct file_system_type *fs_type,
+ struct nfs_server *server,
+ int flags, const char *dev_name,
+ struct nfs_mount_info *mount_info)
{
- struct nfs_server *server = NULL;
struct super_block *s;
- struct nfs_parsed_mount_data *data;
- struct nfs_fh *mntfh;
struct dentry *mntroot = ERR_PTR(-ENOMEM);
int (*compare_super)(struct super_block *, void *) = nfs_compare_super;
struct nfs_sb_mountdata sb_mntdata = {
.mntflags = flags,
+ .server = server,
};
int error;
- data = nfs_alloc_parsed_mount_data(NFS_DEFAULT_VERSION);
- mntfh = nfs_alloc_fhandle();
- if (data == NULL || mntfh == NULL)
- goto out;
-
- /* Validate the mount data */
- error = nfs_validate_mount_data(raw_data, data, mntfh, dev_name);
- if (error < 0) {
- mntroot = ERR_PTR(error);
- goto out;
- }
-
-#ifdef CONFIG_NFS_V4
- if (data->version == 4) {
- mntroot = nfs4_try_mount(flags, dev_name, data);
- goto out;
- }
-#endif /* CONFIG_NFS_V4 */
-
- /* Get a volume representation */
- server = nfs_create_server(data, mntfh);
- if (IS_ERR(server)) {
- mntroot = ERR_CAST(server);
- goto out;
- }
- sb_mntdata.server = server;
-
if (server->flags & NFS_MOUNT_UNSHARED)
compare_super = NULL;
if (!s->s_root) {
/* initial superblock/root creation */
- nfs_fill_super(s, data);
- nfs_fscache_get_super_cookie(s, data->fscache_uniq, NULL);
+ mount_info->fill_super(s, mount_info);
+ nfs_get_cache_cookie(s, mount_info->parsed, mount_info->cloned);
}
- mntroot = nfs_get_root(s, mntfh, dev_name);
+ mntroot = nfs_get_root(s, mount_info->mntfh, dev_name);
if (IS_ERR(mntroot))
goto error_splat_super;
- error = security_sb_set_mnt_opts(s, &data->lsm_opts);
+ error = mount_info->set_security(s, mntroot, mount_info);
if (error)
goto error_splat_root;
s->s_flags |= MS_ACTIVE;
out:
- nfs_free_parsed_mount_data(data);
- nfs_free_fhandle(mntfh);
return mntroot;
out_err_nosb:
goto out;
}
+static struct dentry *nfs_fs_mount(struct file_system_type *fs_type,
+ int flags, const char *dev_name, void *raw_data)
+{
+ struct nfs_mount_info mount_info = {
+ .fill_super = nfs_fill_super,
+ .set_security = nfs_set_sb_security,
+ };
+ struct dentry *mntroot = ERR_PTR(-ENOMEM);
+ int error;
+
+ mount_info.parsed = nfs_alloc_parsed_mount_data();
+ mount_info.mntfh = nfs_alloc_fhandle();
+ if (mount_info.parsed == NULL || mount_info.mntfh == NULL)
+ goto out;
+
+ /* Validate the mount data */
+ error = nfs_validate_mount_data(fs_type, raw_data, mount_info.parsed, mount_info.mntfh, dev_name);
+ if (error == NFS_TEXT_DATA)
+ error = nfs_validate_text_mount_data(raw_data, mount_info.parsed, dev_name);
+ if (error < 0) {
+ mntroot = ERR_PTR(error);
+ goto out;
+ }
+
+#ifdef CONFIG_NFS_V4
+ if (mount_info.parsed->version == 4)
+ mntroot = nfs4_try_mount(flags, dev_name, &mount_info);
+ else
+#endif /* CONFIG_NFS_V4 */
+ mntroot = nfs_try_mount(flags, dev_name, &mount_info);
+
+out:
+ nfs_free_parsed_mount_data(mount_info.parsed);
+ nfs_free_fhandle(mount_info.mntfh);
+ return mntroot;
+}
+
/*
* Ensure that we unregister the bdi before kill_anon_super
* releases the device name
}
/*
- * Clone an NFS2/3 server record on xdev traversal (FSID-change)
+ * Clone an NFS2/3/4 server record on xdev traversal (FSID-change)
*/
static struct dentry *
-nfs_xdev_mount(struct file_system_type *fs_type, int flags,
- const char *dev_name, void *raw_data)
+nfs_xdev_mount_common(struct file_system_type *fs_type, int flags,
+ const char *dev_name, struct nfs_mount_info *mount_info)
{
- struct nfs_clone_mount *data = raw_data;
- struct super_block *s;
+ struct nfs_clone_mount *data = mount_info->cloned;
struct nfs_server *server;
- struct dentry *mntroot;
- int (*compare_super)(struct super_block *, void *) = nfs_compare_super;
- struct nfs_sb_mountdata sb_mntdata = {
- .mntflags = flags,
- };
+ struct dentry *mntroot = ERR_PTR(-ENOMEM);
int error;
- dprintk("--> nfs_xdev_mount()\n");
+ dprintk("--> nfs_xdev_mount_common()\n");
+
+ mount_info->mntfh = data->fh;
/* create a new volume representation */
server = nfs_clone_server(NFS_SB(data->sb), data->fh, data->fattr, data->authflavor);
if (IS_ERR(server)) {
error = PTR_ERR(server);
- goto out_err_noserver;
- }
- sb_mntdata.server = server;
-
- if (server->flags & NFS_MOUNT_UNSHARED)
- compare_super = NULL;
-
- /* -o noac implies -o sync */
- if (server->flags & NFS_MOUNT_NOAC)
- sb_mntdata.mntflags |= MS_SYNCHRONOUS;
-
- /* Get a superblock - note that we may end up sharing one that already exists */
- s = sget(&nfs_fs_type, compare_super, nfs_set_super, &sb_mntdata);
- if (IS_ERR(s)) {
- error = PTR_ERR(s);
- goto out_err_nosb;
- }
-
- if (s->s_fs_info != server) {
- nfs_free_server(server);
- server = NULL;
- } else {
- error = nfs_bdi_register(server);
- if (error)
- goto error_splat_bdi;
- }
-
- if (!s->s_root) {
- /* initial superblock/root creation */
- nfs_clone_super(s, data->sb);
- nfs_fscache_get_super_cookie(s, NULL, data);
- }
-
- mntroot = nfs_get_root(s, data->fh, dev_name);
- if (IS_ERR(mntroot)) {
- error = PTR_ERR(mntroot);
- goto error_splat_super;
- }
- if (mntroot->d_inode->i_op != NFS_SB(s)->nfs_client->rpc_ops->dir_inode_ops) {
- dput(mntroot);
- error = -ESTALE;
- goto error_splat_super;
+ goto out_err;
}
- s->s_flags |= MS_ACTIVE;
-
- /* clone any lsm security options from the parent to the new sb */
- security_sb_clone_mnt_opts(data->sb, s);
-
- dprintk("<-- nfs_xdev_mount() = 0\n");
+ mntroot = nfs_fs_mount_common(fs_type, server, flags, dev_name, mount_info);
+ dprintk("<-- nfs_xdev_mount_common() = 0\n");
+out:
return mntroot;
-out_err_nosb:
- nfs_free_server(server);
-out_err_noserver:
- dprintk("<-- nfs_xdev_mount() = %d [error]\n", error);
- return ERR_PTR(error);
+out_err:
+ dprintk("<-- nfs_xdev_mount_common() = %d [error]\n", error);
+ goto out;
+}
-error_splat_super:
- if (server && !s->s_root)
- bdi_unregister(&server->backing_dev_info);
-error_splat_bdi:
- deactivate_locked_super(s);
- dprintk("<-- nfs_xdev_mount() = %d [splat]\n", error);
- return ERR_PTR(error);
+/*
+ * Clone an NFS2/3 server record on xdev traversal (FSID-change)
+ */
+static struct dentry *
+nfs_xdev_mount(struct file_system_type *fs_type, int flags,
+ const char *dev_name, void *raw_data)
+{
+ struct nfs_mount_info mount_info = {
+ .fill_super = nfs_clone_super,
+ .set_security = nfs_clone_sb_security,
+ .cloned = raw_data,
+ };
+ return nfs_xdev_mount_common(&nfs_fs_type, flags, dev_name, &mount_info);
}
#ifdef CONFIG_NFS_V4
* Finish setting up a cloned NFS4 superblock
*/
static void nfs4_clone_super(struct super_block *sb,
- const struct super_block *old_sb)
+ struct nfs_mount_info *mount_info)
{
+ const struct super_block *old_sb = mount_info->cloned->sb;
sb->s_blocksize_bits = old_sb->s_blocksize_bits;
sb->s_blocksize = old_sb->s_blocksize;
sb->s_maxbytes = old_sb->s_maxbytes;
/*
* Set up an NFS4 superblock
*/
-static void nfs4_fill_super(struct super_block *sb)
+static void nfs4_fill_super(struct super_block *sb,
+ struct nfs_mount_info *mount_info)
{
sb->s_time_gran = 1;
sb->s_op = &nfs4_sops;
NFS_MOUNT_LOCAL_FLOCK|NFS_MOUNT_LOCAL_FCNTL);
}
-static int nfs4_validate_text_mount_data(void *options,
- struct nfs_parsed_mount_data *args,
- const char *dev_name)
-{
- struct sockaddr *sap = (struct sockaddr *)&args->nfs_server.address;
-
- nfs_set_port(sap, &args->nfs_server.port, NFS_PORT);
-
- nfs_validate_transport_protocol(args);
-
- nfs4_validate_mount_flags(args);
-
- if (args->version != 4) {
- dfprintk(MOUNT,
- "NFS4: Illegal mount version\n");
- return -EINVAL;
- }
-
- if (args->auth_flavor_len > 1) {
- dfprintk(MOUNT,
- "NFS4: Too many RPC auth flavours specified\n");
- return -EINVAL;
- }
-
- return nfs_parse_devname(dev_name,
- &args->nfs_server.hostname,
- NFS4_MAXNAMLEN,
- &args->nfs_server.export_path,
- NFS4_MAXPATHLEN);
-}
-
/*
* Validate NFSv4 mount options
*/
break;
default:
- if (nfs_parse_mount_options((char *)options, args) == 0)
- return -EINVAL;
-
- if (!nfs_verify_server_address(sap))
- return -EINVAL;
-
- return nfs4_validate_text_mount_data(options, args, dev_name);
+ return NFS_TEXT_DATA;
}
return 0;
*/
static struct dentry *
nfs4_remote_mount(struct file_system_type *fs_type, int flags,
- const char *dev_name, void *raw_data)
+ const char *dev_name, void *info)
{
- struct nfs_parsed_mount_data *data = raw_data;
- struct super_block *s;
+ struct nfs_mount_info *mount_info = info;
struct nfs_server *server;
- struct nfs_fh *mntfh;
- struct dentry *mntroot;
- int (*compare_super)(struct super_block *, void *) = nfs_compare_super;
- struct nfs_sb_mountdata sb_mntdata = {
- .mntflags = flags,
- };
- int error = -ENOMEM;
+ struct dentry *mntroot = ERR_PTR(-ENOMEM);
- mntfh = nfs_alloc_fhandle();
- if (data == NULL || mntfh == NULL)
- goto out;
+ mount_info->fill_super = nfs4_fill_super;
+ mount_info->set_security = nfs_set_sb_security;
/* Get a volume representation */
- server = nfs4_create_server(data, mntfh);
+ server = nfs4_create_server(mount_info->parsed, mount_info->mntfh);
if (IS_ERR(server)) {
- error = PTR_ERR(server);
+ mntroot = ERR_CAST(server);
goto out;
}
- sb_mntdata.server = server;
- if (server->flags & NFS4_MOUNT_UNSHARED)
- compare_super = NULL;
-
- /* -o noac implies -o sync */
- if (server->flags & NFS_MOUNT_NOAC)
- sb_mntdata.mntflags |= MS_SYNCHRONOUS;
-
- /* Get a superblock - note that we may end up sharing one that already exists */
- s = sget(&nfs4_fs_type, compare_super, nfs_set_super, &sb_mntdata);
- if (IS_ERR(s)) {
- error = PTR_ERR(s);
- goto out_free;
- }
-
- if (s->s_fs_info != server) {
- nfs_free_server(server);
- server = NULL;
- } else {
- error = nfs_bdi_register(server);
- if (error)
- goto error_splat_bdi;
- }
-
- if (!s->s_root) {
- /* initial superblock/root creation */
- nfs4_fill_super(s);
- nfs_fscache_get_super_cookie(s, data->fscache_uniq, NULL);
- }
-
- mntroot = nfs4_get_root(s, mntfh, dev_name);
- if (IS_ERR(mntroot)) {
- error = PTR_ERR(mntroot);
- goto error_splat_super;
- }
-
- error = security_sb_set_mnt_opts(s, &data->lsm_opts);
- if (error)
- goto error_splat_root;
-
- s->s_flags |= MS_ACTIVE;
-
- nfs_free_fhandle(mntfh);
- return mntroot;
+ mntroot = nfs_fs_mount_common(fs_type, server, flags, dev_name, mount_info);
out:
- nfs_free_fhandle(mntfh);
- return ERR_PTR(error);
-
-out_free:
- nfs_free_server(server);
- goto out;
-
-error_splat_root:
- dput(mntroot);
-error_splat_super:
- if (server && !s->s_root)
- bdi_unregister(&server->backing_dev_info);
-error_splat_bdi:
- deactivate_locked_super(s);
- goto out;
+ return mntroot;
}
static struct vfsmount *nfs_do_root_mount(struct file_system_type *fs_type,
}
static struct dentry *nfs4_try_mount(int flags, const char *dev_name,
- struct nfs_parsed_mount_data *data)
+ struct nfs_mount_info *mount_info)
{
char *export_path;
struct vfsmount *root_mnt;
struct dentry *res;
+ struct nfs_parsed_mount_data *data = mount_info->parsed;
dfprintk(MOUNT, "--> nfs4_try_mount()\n");
export_path = data->nfs_server.export_path;
data->nfs_server.export_path = "/";
- root_mnt = nfs_do_root_mount(&nfs4_remote_fs_type, flags, data,
+ root_mnt = nfs_do_root_mount(&nfs4_remote_fs_type, flags, mount_info,
data->nfs_server.hostname);
data->nfs_server.export_path = export_path;
return res;
}
-/*
- * Get the superblock for an NFS4 mountpoint
- */
-static struct dentry *nfs4_mount(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *raw_data)
-{
- struct nfs_parsed_mount_data *data;
- int error = -ENOMEM;
- struct dentry *res = ERR_PTR(-ENOMEM);
-
- data = nfs_alloc_parsed_mount_data(4);
- if (data == NULL)
- goto out;
-
- /* Validate the mount data */
- error = nfs4_validate_mount_data(raw_data, data, dev_name);
- if (error < 0) {
- res = ERR_PTR(error);
- goto out;
- }
-
- res = nfs4_try_mount(flags, dev_name, data);
- if (IS_ERR(res))
- error = PTR_ERR(res);
-
-out:
- nfs_free_parsed_mount_data(data);
- dprintk("<-- nfs4_mount() = %d%s\n", error,
- error != 0 ? " [error]" : "");
- return res;
-}
-
static void nfs4_kill_super(struct super_block *sb)
{
struct nfs_server *server = NFS_SB(sb);
nfs4_xdev_mount(struct file_system_type *fs_type, int flags,
const char *dev_name, void *raw_data)
{
- struct nfs_clone_mount *data = raw_data;
- struct super_block *s;
- struct nfs_server *server;
- struct dentry *mntroot;
- int (*compare_super)(struct super_block *, void *) = nfs_compare_super;
- struct nfs_sb_mountdata sb_mntdata = {
- .mntflags = flags,
+ struct nfs_mount_info mount_info = {
+ .fill_super = nfs4_clone_super,
+ .set_security = nfs_clone_sb_security,
+ .cloned = raw_data,
};
- int error;
-
- dprintk("--> nfs4_xdev_mount()\n");
-
- /* create a new volume representation */
- server = nfs_clone_server(NFS_SB(data->sb), data->fh, data->fattr, data->authflavor);
- if (IS_ERR(server)) {
- error = PTR_ERR(server);
- goto out_err_noserver;
- }
- sb_mntdata.server = server;
-
- if (server->flags & NFS4_MOUNT_UNSHARED)
- compare_super = NULL;
-
- /* -o noac implies -o sync */
- if (server->flags & NFS_MOUNT_NOAC)
- sb_mntdata.mntflags |= MS_SYNCHRONOUS;
-
- /* Get a superblock - note that we may end up sharing one that already exists */
- s = sget(&nfs4_fs_type, compare_super, nfs_set_super, &sb_mntdata);
- if (IS_ERR(s)) {
- error = PTR_ERR(s);
- goto out_err_nosb;
- }
-
- if (s->s_fs_info != server) {
- nfs_free_server(server);
- server = NULL;
- } else {
- error = nfs_bdi_register(server);
- if (error)
- goto error_splat_bdi;
- }
-
- if (!s->s_root) {
- /* initial superblock/root creation */
- nfs4_clone_super(s, data->sb);
- nfs_fscache_get_super_cookie(s, NULL, data);
- }
-
- mntroot = nfs4_get_root(s, data->fh, dev_name);
- if (IS_ERR(mntroot)) {
- error = PTR_ERR(mntroot);
- goto error_splat_super;
- }
- if (mntroot->d_inode->i_op != NFS_SB(s)->nfs_client->rpc_ops->dir_inode_ops) {
- dput(mntroot);
- error = -ESTALE;
- goto error_splat_super;
- }
-
- s->s_flags |= MS_ACTIVE;
-
- security_sb_clone_mnt_opts(data->sb, s);
-
- dprintk("<-- nfs4_xdev_mount() = 0\n");
- return mntroot;
-
-out_err_nosb:
- nfs_free_server(server);
-out_err_noserver:
- dprintk("<-- nfs4_xdev_mount() = %d [error]\n", error);
- return ERR_PTR(error);
-
-error_splat_super:
- if (server && !s->s_root)
- bdi_unregister(&server->backing_dev_info);
-error_splat_bdi:
- deactivate_locked_super(s);
- dprintk("<-- nfs4_xdev_mount() = %d [splat]\n", error);
- return ERR_PTR(error);
+ return nfs_xdev_mount_common(&nfs4_fs_type, flags, dev_name, &mount_info);
}
static struct dentry *
nfs4_remote_referral_mount(struct file_system_type *fs_type, int flags,
const char *dev_name, void *raw_data)
{
- struct nfs_clone_mount *data = raw_data;
- struct super_block *s;
- struct nfs_server *server;
- struct dentry *mntroot;
- struct nfs_fh *mntfh;
- int (*compare_super)(struct super_block *, void *) = nfs_compare_super;
- struct nfs_sb_mountdata sb_mntdata = {
- .mntflags = flags,
+ struct nfs_mount_info mount_info = {
+ .fill_super = nfs4_fill_super,
+ .set_security = nfs_clone_sb_security,
+ .cloned = raw_data,
};
- int error = -ENOMEM;
+ struct nfs_server *server;
+ struct dentry *mntroot = ERR_PTR(-ENOMEM);
dprintk("--> nfs4_referral_get_sb()\n");
- mntfh = nfs_alloc_fhandle();
- if (mntfh == NULL)
- goto out_err_nofh;
+ mount_info.mntfh = nfs_alloc_fhandle();
+ if (mount_info.cloned == NULL || mount_info.mntfh == NULL)
+ goto out;
/* create a new volume representation */
- server = nfs4_create_referral_server(data, mntfh);
+ server = nfs4_create_referral_server(mount_info.cloned, mount_info.mntfh);
if (IS_ERR(server)) {
- error = PTR_ERR(server);
- goto out_err_noserver;
- }
- sb_mntdata.server = server;
-
- if (server->flags & NFS4_MOUNT_UNSHARED)
- compare_super = NULL;
-
- /* -o noac implies -o sync */
- if (server->flags & NFS_MOUNT_NOAC)
- sb_mntdata.mntflags |= MS_SYNCHRONOUS;
-
- /* Get a superblock - note that we may end up sharing one that already exists */
- s = sget(&nfs4_fs_type, compare_super, nfs_set_super, &sb_mntdata);
- if (IS_ERR(s)) {
- error = PTR_ERR(s);
- goto out_err_nosb;
- }
-
- if (s->s_fs_info != server) {
- nfs_free_server(server);
- server = NULL;
- } else {
- error = nfs_bdi_register(server);
- if (error)
- goto error_splat_bdi;
- }
-
- if (!s->s_root) {
- /* initial superblock/root creation */
- nfs4_fill_super(s);
- nfs_fscache_get_super_cookie(s, NULL, data);
- }
-
- mntroot = nfs4_get_root(s, mntfh, dev_name);
- if (IS_ERR(mntroot)) {
- error = PTR_ERR(mntroot);
- goto error_splat_super;
- }
- if (mntroot->d_inode->i_op != NFS_SB(s)->nfs_client->rpc_ops->dir_inode_ops) {
- dput(mntroot);
- error = -ESTALE;
- goto error_splat_super;
+ mntroot = ERR_CAST(server);
+ goto out;
}
- s->s_flags |= MS_ACTIVE;
-
- security_sb_clone_mnt_opts(data->sb, s);
-
- nfs_free_fhandle(mntfh);
- dprintk("<-- nfs4_referral_get_sb() = 0\n");
+ mntroot = nfs_fs_mount_common(&nfs4_fs_type, server, flags, dev_name, &mount_info);
+out:
+ nfs_free_fhandle(mount_info.mntfh);
return mntroot;
-
-out_err_nosb:
- nfs_free_server(server);
-out_err_noserver:
- nfs_free_fhandle(mntfh);
-out_err_nofh:
- dprintk("<-- nfs4_referral_get_sb() = %d [error]\n", error);
- return ERR_PTR(error);
-
-error_splat_super:
- if (server && !s->s_root)
- bdi_unregister(&server->backing_dev_info);
-error_splat_bdi:
- deactivate_locked_super(s);
- nfs_free_fhandle(mntfh);
- dprintk("<-- nfs4_referral_get_sb() = %d [splat]\n", error);
- return ERR_PTR(error);
}
/*
/*
* Local function declarations
*/
-static void nfs_pageio_init_write(struct nfs_pageio_descriptor *desc,
- struct inode *inode, int ioflags);
static void nfs_redirty_request(struct nfs_page *req);
-static const struct rpc_call_ops nfs_write_partial_ops;
-static const struct rpc_call_ops nfs_write_full_ops;
+static const struct rpc_call_ops nfs_write_common_ops;
static const struct rpc_call_ops nfs_commit_ops;
+static const struct nfs_pgio_completion_ops nfs_async_write_completion_ops;
+static const struct nfs_commit_completion_ops nfs_commit_completion_ops;
static struct kmem_cache *nfs_wdata_cachep;
static mempool_t *nfs_wdata_mempool;
+static struct kmem_cache *nfs_cdata_cachep;
static mempool_t *nfs_commit_mempool;
-struct nfs_write_data *nfs_commitdata_alloc(void)
+struct nfs_commit_data *nfs_commitdata_alloc(void)
{
- struct nfs_write_data *p = mempool_alloc(nfs_commit_mempool, GFP_NOFS);
+ struct nfs_commit_data *p = mempool_alloc(nfs_commit_mempool, GFP_NOFS);
if (p) {
memset(p, 0, sizeof(*p));
}
EXPORT_SYMBOL_GPL(nfs_commitdata_alloc);
-void nfs_commit_free(struct nfs_write_data *p)
+void nfs_commit_free(struct nfs_commit_data *p)
{
- if (p && (p->pagevec != &p->page_array[0]))
- kfree(p->pagevec);
mempool_free(p, nfs_commit_mempool);
}
EXPORT_SYMBOL_GPL(nfs_commit_free);
-struct nfs_write_data *nfs_writedata_alloc(unsigned int pagecount)
+struct nfs_write_header *nfs_writehdr_alloc(void)
{
- struct nfs_write_data *p = mempool_alloc(nfs_wdata_mempool, GFP_NOFS);
+ struct nfs_write_header *p = mempool_alloc(nfs_wdata_mempool, GFP_NOFS);
if (p) {
+ struct nfs_pgio_header *hdr = &p->header;
+
memset(p, 0, sizeof(*p));
- INIT_LIST_HEAD(&p->pages);
- p->npages = pagecount;
- if (pagecount <= ARRAY_SIZE(p->page_array))
- p->pagevec = p->page_array;
- else {
- p->pagevec = kcalloc(pagecount, sizeof(struct page *), GFP_NOFS);
- if (!p->pagevec) {
- mempool_free(p, nfs_wdata_mempool);
- p = NULL;
- }
- }
+ INIT_LIST_HEAD(&hdr->pages);
+ INIT_LIST_HEAD(&hdr->rpc_list);
+ spin_lock_init(&hdr->lock);
+ atomic_set(&hdr->refcnt, 0);
}
return p;
}
-void nfs_writedata_free(struct nfs_write_data *p)
+static struct nfs_write_data *nfs_writedata_alloc(struct nfs_pgio_header *hdr,
+ unsigned int pagecount)
+{
+ struct nfs_write_data *data, *prealloc;
+
+ prealloc = &container_of(hdr, struct nfs_write_header, header)->rpc_data;
+ if (prealloc->header == NULL)
+ data = prealloc;
+ else
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
+ goto out;
+
+ if (nfs_pgarray_set(&data->pages, pagecount)) {
+ data->header = hdr;
+ atomic_inc(&hdr->refcnt);
+ } else {
+ if (data != prealloc)
+ kfree(data);
+ data = NULL;
+ }
+out:
+ return data;
+}
+
+void nfs_writehdr_free(struct nfs_pgio_header *hdr)
{
- if (p && (p->pagevec != &p->page_array[0]))
- kfree(p->pagevec);
- mempool_free(p, nfs_wdata_mempool);
+ struct nfs_write_header *whdr = container_of(hdr, struct nfs_write_header, header);
+ mempool_free(whdr, nfs_wdata_mempool);
}
void nfs_writedata_release(struct nfs_write_data *wdata)
{
+ struct nfs_pgio_header *hdr = wdata->header;
+ struct nfs_write_header *write_header = container_of(hdr, struct nfs_write_header, header);
+
put_nfs_open_context(wdata->args.context);
- nfs_writedata_free(wdata);
+ if (wdata->pages.pagevec != wdata->pages.page_array)
+ kfree(wdata->pages.pagevec);
+ if (wdata != &write_header->rpc_data)
+ kfree(wdata);
+ else
+ wdata->header = NULL;
+ if (atomic_dec_and_test(&hdr->refcnt))
+ hdr->completion_ops->completion(hdr);
}
static void nfs_context_set_write_error(struct nfs_open_context *ctx, int error)
struct inode *inode = page->mapping->host;
struct nfs_server *nfss = NFS_SERVER(inode);
- page_cache_get(page);
if (atomic_long_inc_return(&nfss->writeback) >
NFS_CONGESTION_ON_THRESH) {
set_bdi_congested(&nfss->backing_dev_info,
struct nfs_server *nfss = NFS_SERVER(inode);
end_page_writeback(page);
- page_cache_release(page);
if (atomic_long_dec_return(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH)
clear_bdi_congested(&nfss->backing_dev_info, BLK_RW_ASYNC);
}
req = nfs_page_find_request_locked(page);
if (req == NULL)
break;
- if (nfs_lock_request_dontget(req))
+ if (nfs_lock_request(req))
break;
/* Note: If we hold the page lock, as is the case in nfs_writepage,
- * then the call to nfs_lock_request_dontget() will always
+ * then the call to nfs_lock_request() will always
* succeed provided that someone hasn't already marked the
* request as dirty (in which case we don't care).
*/
struct nfs_pageio_descriptor pgio;
int err;
- nfs_pageio_init_write(&pgio, page->mapping->host, wb_priority(wbc));
+ nfs_pageio_init_write(&pgio, page->mapping->host, wb_priority(wbc),
+ &nfs_async_write_completion_ops);
err = nfs_do_writepage(page, wbc, &pgio);
nfs_pageio_complete(&pgio);
if (err < 0)
nfs_inc_stats(inode, NFSIOS_VFSWRITEPAGES);
- nfs_pageio_init_write(&pgio, inode, wb_priority(wbc));
+ nfs_pageio_init_write(&pgio, inode, wb_priority(wbc),
+ &nfs_async_write_completion_ops);
err = write_cache_pages(mapping, wbc, nfs_writepages_callback, &pgio);
nfs_pageio_complete(&pgio);
struct nfs_inode *nfsi = NFS_I(inode);
/* Lock the request! */
- nfs_lock_request_dontget(req);
+ nfs_lock_request(req);
spin_lock(&inode->i_lock);
if (!nfsi->npages && nfs_have_delegation(inode, FMODE_WRITE))
/**
* nfs_request_add_commit_list - add request to a commit list
* @req: pointer to a struct nfs_page
- * @head: commit list head
+ * @dst: commit list head
+ * @cinfo: holds list lock and accounting info
*
- * This sets the PG_CLEAN bit, updates the inode global count of
+ * This sets the PG_CLEAN bit, updates the cinfo count of
* number of outstanding requests requiring a commit as well as
* the MM page stats.
*
- * The caller must _not_ hold the inode->i_lock, but must be
+ * The caller must _not_ hold the cinfo->lock, but must be
* holding the nfs_page lock.
*/
void
-nfs_request_add_commit_list(struct nfs_page *req, struct list_head *head)
+nfs_request_add_commit_list(struct nfs_page *req, struct list_head *dst,
+ struct nfs_commit_info *cinfo)
{
- struct inode *inode = req->wb_context->dentry->d_inode;
-
set_bit(PG_CLEAN, &(req)->wb_flags);
- spin_lock(&inode->i_lock);
- nfs_list_add_request(req, head);
- NFS_I(inode)->ncommit++;
- spin_unlock(&inode->i_lock);
- inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
- inc_bdi_stat(req->wb_page->mapping->backing_dev_info, BDI_RECLAIMABLE);
- __mark_inode_dirty(inode, I_DIRTY_DATASYNC);
+ spin_lock(cinfo->lock);
+ nfs_list_add_request(req, dst);
+ cinfo->mds->ncommit++;
+ spin_unlock(cinfo->lock);
+ if (!cinfo->dreq) {
+ inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
+ inc_bdi_stat(req->wb_page->mapping->backing_dev_info,
+ BDI_RECLAIMABLE);
+ __mark_inode_dirty(req->wb_context->dentry->d_inode,
+ I_DIRTY_DATASYNC);
+ }
}
EXPORT_SYMBOL_GPL(nfs_request_add_commit_list);
/**
* nfs_request_remove_commit_list - Remove request from a commit list
* @req: pointer to a nfs_page
+ * @cinfo: holds list lock and accounting info
*
- * This clears the PG_CLEAN bit, and updates the inode global count of
+ * This clears the PG_CLEAN bit, and updates the cinfo's count of
* number of outstanding requests requiring a commit
* It does not update the MM page stats.
*
- * The caller _must_ hold the inode->i_lock and the nfs_page lock.
+ * The caller _must_ hold the cinfo->lock and the nfs_page lock.
*/
void
-nfs_request_remove_commit_list(struct nfs_page *req)
+nfs_request_remove_commit_list(struct nfs_page *req,
+ struct nfs_commit_info *cinfo)
{
- struct inode *inode = req->wb_context->dentry->d_inode;
-
if (!test_and_clear_bit(PG_CLEAN, &(req)->wb_flags))
return;
nfs_list_remove_request(req);
- NFS_I(inode)->ncommit--;
+ cinfo->mds->ncommit--;
}
EXPORT_SYMBOL_GPL(nfs_request_remove_commit_list);
+static void nfs_init_cinfo_from_inode(struct nfs_commit_info *cinfo,
+ struct inode *inode)
+{
+ cinfo->lock = &inode->i_lock;
+ cinfo->mds = &NFS_I(inode)->commit_info;
+ cinfo->ds = pnfs_get_ds_info(inode);
+ cinfo->dreq = NULL;
+ cinfo->completion_ops = &nfs_commit_completion_ops;
+}
+
+void nfs_init_cinfo(struct nfs_commit_info *cinfo,
+ struct inode *inode,
+ struct nfs_direct_req *dreq)
+{
+ if (dreq)
+ nfs_init_cinfo_from_dreq(cinfo, dreq);
+ else
+ nfs_init_cinfo_from_inode(cinfo, inode);
+}
+EXPORT_SYMBOL_GPL(nfs_init_cinfo);
/*
* Add a request to the inode's commit list.
*/
-static void
-nfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg)
+void
+nfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg,
+ struct nfs_commit_info *cinfo)
{
- struct inode *inode = req->wb_context->dentry->d_inode;
-
- if (pnfs_mark_request_commit(req, lseg))
+ if (pnfs_mark_request_commit(req, lseg, cinfo))
return;
- nfs_request_add_commit_list(req, &NFS_I(inode)->commit_list);
+ nfs_request_add_commit_list(req, &cinfo->mds->list, cinfo);
}
static void
{
if (test_bit(PG_CLEAN, &req->wb_flags)) {
struct inode *inode = req->wb_context->dentry->d_inode;
+ struct nfs_commit_info cinfo;
- if (!pnfs_clear_request_commit(req)) {
- spin_lock(&inode->i_lock);
- nfs_request_remove_commit_list(req);
- spin_unlock(&inode->i_lock);
+ nfs_init_cinfo_from_inode(&cinfo, inode);
+ if (!pnfs_clear_request_commit(req, &cinfo)) {
+ spin_lock(cinfo.lock);
+ nfs_request_remove_commit_list(req, &cinfo);
+ spin_unlock(cinfo.lock);
}
nfs_clear_page_commit(req->wb_page);
}
int nfs_write_need_commit(struct nfs_write_data *data)
{
if (data->verf.committed == NFS_DATA_SYNC)
- return data->lseg == NULL;
- else
- return data->verf.committed != NFS_FILE_SYNC;
+ return data->header->lseg == NULL;
+ return data->verf.committed != NFS_FILE_SYNC;
}
-static inline
-int nfs_reschedule_unstable_write(struct nfs_page *req,
- struct nfs_write_data *data)
+#else
+static void nfs_init_cinfo_from_inode(struct nfs_commit_info *cinfo,
+ struct inode *inode)
{
- if (test_and_clear_bit(PG_NEED_COMMIT, &req->wb_flags)) {
- nfs_mark_request_commit(req, data->lseg);
- return 1;
- }
- if (test_and_clear_bit(PG_NEED_RESCHED, &req->wb_flags)) {
- nfs_mark_request_dirty(req);
- return 1;
- }
- return 0;
}
-#else
-static void
-nfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg)
+
+void nfs_init_cinfo(struct nfs_commit_info *cinfo,
+ struct inode *inode,
+ struct nfs_direct_req *dreq)
+{
+}
+
+void
+nfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg,
+ struct nfs_commit_info *cinfo)
{
}
return 0;
}
-static inline
-int nfs_reschedule_unstable_write(struct nfs_page *req,
- struct nfs_write_data *data)
+#endif
+
+static void nfs_write_completion(struct nfs_pgio_header *hdr)
{
- return 0;
+ struct nfs_commit_info cinfo;
+ unsigned long bytes = 0;
+
+ if (test_bit(NFS_IOHDR_REDO, &hdr->flags))
+ goto out;
+ nfs_init_cinfo_from_inode(&cinfo, hdr->inode);
+ while (!list_empty(&hdr->pages)) {
+ struct nfs_page *req = nfs_list_entry(hdr->pages.next);
+
+ bytes += req->wb_bytes;
+ nfs_list_remove_request(req);
+ if (test_bit(NFS_IOHDR_ERROR, &hdr->flags) &&
+ (hdr->good_bytes < bytes)) {
+ nfs_set_pageerror(req->wb_page);
+ nfs_context_set_write_error(req->wb_context, hdr->error);
+ goto remove_req;
+ }
+ if (test_bit(NFS_IOHDR_NEED_RESCHED, &hdr->flags)) {
+ nfs_mark_request_dirty(req);
+ goto next;
+ }
+ if (test_bit(NFS_IOHDR_NEED_COMMIT, &hdr->flags)) {
+ nfs_mark_request_commit(req, hdr->lseg, &cinfo);
+ goto next;
+ }
+remove_req:
+ nfs_inode_remove_request(req);
+next:
+ nfs_unlock_request(req);
+ nfs_end_page_writeback(req->wb_page);
+ nfs_release_request(req);
+ }
+out:
+ hdr->release(hdr);
}
-#endif
#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
-static int
-nfs_need_commit(struct nfs_inode *nfsi)
+static unsigned long
+nfs_reqs_to_commit(struct nfs_commit_info *cinfo)
{
- return nfsi->ncommit > 0;
+ return cinfo->mds->ncommit;
}
-/* i_lock held by caller */
-static int
-nfs_scan_commit_list(struct list_head *src, struct list_head *dst, int max,
- spinlock_t *lock)
+/* cinfo->lock held by caller */
+int
+nfs_scan_commit_list(struct list_head *src, struct list_head *dst,
+ struct nfs_commit_info *cinfo, int max)
{
struct nfs_page *req, *tmp;
int ret = 0;
list_for_each_entry_safe(req, tmp, src, wb_list) {
if (!nfs_lock_request(req))
continue;
- if (cond_resched_lock(lock))
+ kref_get(&req->wb_kref);
+ if (cond_resched_lock(cinfo->lock))
list_safe_reset_next(req, tmp, wb_list);
- nfs_request_remove_commit_list(req);
+ nfs_request_remove_commit_list(req, cinfo);
nfs_list_add_request(req, dst);
ret++;
- if (ret == max)
+ if ((ret == max) && !cinfo->dreq)
break;
}
return ret;
/*
* nfs_scan_commit - Scan an inode for commit requests
* @inode: NFS inode to scan
- * @dst: destination list
+ * @dst: mds destination list
+ * @cinfo: mds and ds lists of reqs ready to commit
*
* Moves requests from the inode's 'commit' request list.
* The requests are *not* checked to ensure that they form a contiguous set.
*/
-static int
-nfs_scan_commit(struct inode *inode, struct list_head *dst)
+int
+nfs_scan_commit(struct inode *inode, struct list_head *dst,
+ struct nfs_commit_info *cinfo)
{
- struct nfs_inode *nfsi = NFS_I(inode);
int ret = 0;
- spin_lock(&inode->i_lock);
- if (nfsi->ncommit > 0) {
+ spin_lock(cinfo->lock);
+ if (cinfo->mds->ncommit > 0) {
const int max = INT_MAX;
- ret = nfs_scan_commit_list(&nfsi->commit_list, dst, max,
- &inode->i_lock);
- ret += pnfs_scan_commit_lists(inode, max - ret,
- &inode->i_lock);
+ ret = nfs_scan_commit_list(&cinfo->mds->list, dst,
+ cinfo, max);
+ ret += pnfs_scan_commit_lists(inode, cinfo, max - ret);
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(cinfo->lock);
return ret;
}
#else
-static inline int nfs_need_commit(struct nfs_inode *nfsi)
+static unsigned long nfs_reqs_to_commit(struct nfs_commit_info *cinfo)
{
return 0;
}
-static inline int nfs_scan_commit(struct inode *inode, struct list_head *dst)
+int nfs_scan_commit(struct inode *inode, struct list_head *dst,
+ struct nfs_commit_info *cinfo)
{
return 0;
}
|| end < req->wb_offset)
goto out_flushme;
- if (nfs_lock_request_dontget(req))
+ if (nfs_lock_request(req))
break;
/* The request is locked, so wait and then retry */
nfs_grow_file(page, offset, count);
nfs_mark_uptodate(page, req->wb_pgbase, req->wb_bytes);
nfs_mark_request_dirty(req);
- nfs_unlock_request(req);
+ nfs_unlock_and_release_request(req);
return 0;
}
* the PageUptodate() flag. In this case, we will need to turn off
* write optimisations that depend on the page contents being correct.
*/
-static int nfs_write_pageuptodate(struct page *page, struct inode *inode)
+static bool nfs_write_pageuptodate(struct page *page, struct inode *inode)
{
- return PageUptodate(page) &&
- !(NFS_I(inode)->cache_validity & (NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_DATA));
+ if (nfs_have_delegated_attributes(inode))
+ goto out;
+ if (NFS_I(inode)->cache_validity & NFS_INO_REVAL_PAGECACHE)
+ return false;
+out:
+ return PageUptodate(page) != 0;
}
/*
return status;
}
-static void nfs_writepage_release(struct nfs_page *req,
- struct nfs_write_data *data)
-{
- struct page *page = req->wb_page;
-
- if (PageError(req->wb_page) || !nfs_reschedule_unstable_write(req, data))
- nfs_inode_remove_request(req);
- nfs_unlock_request(req);
- nfs_end_page_writeback(page);
-}
-
static int flush_task_priority(int how)
{
switch (how & (FLUSH_HIGHPRI|FLUSH_LOWPRI)) {
return RPC_PRIORITY_NORMAL;
}
-int nfs_initiate_write(struct nfs_write_data *data,
- struct rpc_clnt *clnt,
+int nfs_initiate_write(struct rpc_clnt *clnt,
+ struct nfs_write_data *data,
const struct rpc_call_ops *call_ops,
- int how)
+ int how, int flags)
{
- struct inode *inode = data->inode;
+ struct inode *inode = data->header->inode;
int priority = flush_task_priority(how);
struct rpc_task *task;
struct rpc_message msg = {
.rpc_argp = &data->args,
.rpc_resp = &data->res,
- .rpc_cred = data->cred,
+ .rpc_cred = data->header->cred,
};
struct rpc_task_setup task_setup_data = {
.rpc_client = clnt,
.callback_ops = call_ops,
.callback_data = data,
.workqueue = nfsiod_workqueue,
- .flags = RPC_TASK_ASYNC,
+ .flags = RPC_TASK_ASYNC | flags,
.priority = priority,
};
int ret = 0;
/*
* Set up the argument/result storage required for the RPC call.
*/
-static void nfs_write_rpcsetup(struct nfs_page *req,
- struct nfs_write_data *data,
+static void nfs_write_rpcsetup(struct nfs_write_data *data,
unsigned int count, unsigned int offset,
- int how)
+ int how, struct nfs_commit_info *cinfo)
{
- struct inode *inode = req->wb_context->dentry->d_inode;
+ struct nfs_page *req = data->header->req;
/* Set up the RPC argument and reply structs
* NB: take care not to mess about with data->commit et al. */
- data->req = req;
- data->inode = inode = req->wb_context->dentry->d_inode;
- data->cred = req->wb_context->cred;
-
- data->args.fh = NFS_FH(inode);
+ data->args.fh = NFS_FH(data->header->inode);
data->args.offset = req_offset(req) + offset;
/* pnfs_set_layoutcommit needs this */
data->mds_offset = data->args.offset;
data->args.pgbase = req->wb_pgbase + offset;
- data->args.pages = data->pagevec;
+ data->args.pages = data->pages.pagevec;
data->args.count = count;
data->args.context = get_nfs_open_context(req->wb_context);
data->args.lock_context = req->wb_lock_context;
case 0:
break;
case FLUSH_COND_STABLE:
- if (nfs_need_commit(NFS_I(inode)))
+ if (nfs_reqs_to_commit(cinfo))
break;
default:
data->args.stable = NFS_FILE_SYNC;
const struct rpc_call_ops *call_ops,
int how)
{
- struct inode *inode = data->args.context->dentry->d_inode;
+ struct inode *inode = data->header->inode;
- return nfs_initiate_write(data, NFS_CLIENT(inode), call_ops, how);
+ return nfs_initiate_write(NFS_CLIENT(inode), data, call_ops, how, 0);
}
static int nfs_do_multiple_writes(struct list_head *head,
while (!list_empty(head)) {
int ret2;
- data = list_entry(head->next, struct nfs_write_data, list);
+ data = list_first_entry(head, struct nfs_write_data, list);
list_del_init(&data->list);
ret2 = nfs_do_write(data, call_ops, how);
*/
static void nfs_redirty_request(struct nfs_page *req)
{
- struct page *page = req->wb_page;
-
nfs_mark_request_dirty(req);
nfs_unlock_request(req);
- nfs_end_page_writeback(page);
+ nfs_end_page_writeback(req->wb_page);
+ nfs_release_request(req);
+}
+
+static void nfs_async_write_error(struct list_head *head)
+{
+ struct nfs_page *req;
+
+ while (!list_empty(head)) {
+ req = nfs_list_entry(head->next);
+ nfs_list_remove_request(req);
+ nfs_redirty_request(req);
+ }
+}
+
+static const struct nfs_pgio_completion_ops nfs_async_write_completion_ops = {
+ .error_cleanup = nfs_async_write_error,
+ .completion = nfs_write_completion,
+};
+
+static void nfs_flush_error(struct nfs_pageio_descriptor *desc,
+ struct nfs_pgio_header *hdr)
+{
+ set_bit(NFS_IOHDR_REDO, &hdr->flags);
+ while (!list_empty(&hdr->rpc_list)) {
+ struct nfs_write_data *data = list_first_entry(&hdr->rpc_list,
+ struct nfs_write_data, list);
+ list_del(&data->list);
+ nfs_writedata_release(data);
+ }
+ desc->pg_completion_ops->error_cleanup(&desc->pg_list);
}
/*
* Generate multiple small requests to write out a single
* contiguous dirty area on one page.
*/
-static int nfs_flush_multi(struct nfs_pageio_descriptor *desc, struct list_head *res)
+static int nfs_flush_multi(struct nfs_pageio_descriptor *desc,
+ struct nfs_pgio_header *hdr)
{
- struct nfs_page *req = nfs_list_entry(desc->pg_list.next);
+ struct nfs_page *req = hdr->req;
struct page *page = req->wb_page;
struct nfs_write_data *data;
size_t wsize = desc->pg_bsize, nbytes;
unsigned int offset;
int requests = 0;
- int ret = 0;
+ struct nfs_commit_info cinfo;
- nfs_list_remove_request(req);
+ nfs_init_cinfo(&cinfo, desc->pg_inode, desc->pg_dreq);
if ((desc->pg_ioflags & FLUSH_COND_STABLE) &&
- (desc->pg_moreio || NFS_I(desc->pg_inode)->ncommit ||
+ (desc->pg_moreio || nfs_reqs_to_commit(&cinfo) ||
desc->pg_count > wsize))
desc->pg_ioflags &= ~FLUSH_COND_STABLE;
do {
size_t len = min(nbytes, wsize);
- data = nfs_writedata_alloc(1);
- if (!data)
- goto out_bad;
- data->pagevec[0] = page;
- nfs_write_rpcsetup(req, data, len, offset, desc->pg_ioflags);
- list_add(&data->list, res);
+ data = nfs_writedata_alloc(hdr, 1);
+ if (!data) {
+ nfs_flush_error(desc, hdr);
+ return -ENOMEM;
+ }
+ data->pages.pagevec[0] = page;
+ nfs_write_rpcsetup(data, len, offset, desc->pg_ioflags, &cinfo);
+ list_add(&data->list, &hdr->rpc_list);
requests++;
nbytes -= len;
offset += len;
} while (nbytes != 0);
- atomic_set(&req->wb_complete, requests);
- desc->pg_rpc_callops = &nfs_write_partial_ops;
- return ret;
-
-out_bad:
- while (!list_empty(res)) {
- data = list_entry(res->next, struct nfs_write_data, list);
- list_del(&data->list);
- nfs_writedata_release(data);
- }
- nfs_redirty_request(req);
- return -ENOMEM;
+ nfs_list_remove_request(req);
+ nfs_list_add_request(req, &hdr->pages);
+ desc->pg_rpc_callops = &nfs_write_common_ops;
+ return 0;
}
/*
* This is the case if nfs_updatepage detects a conflicting request
* that has been written but not committed.
*/
-static int nfs_flush_one(struct nfs_pageio_descriptor *desc, struct list_head *res)
+static int nfs_flush_one(struct nfs_pageio_descriptor *desc,
+ struct nfs_pgio_header *hdr)
{
struct nfs_page *req;
struct page **pages;
struct nfs_write_data *data;
struct list_head *head = &desc->pg_list;
- int ret = 0;
+ struct nfs_commit_info cinfo;
- data = nfs_writedata_alloc(nfs_page_array_len(desc->pg_base,
- desc->pg_count));
+ data = nfs_writedata_alloc(hdr, nfs_page_array_len(desc->pg_base,
+ desc->pg_count));
if (!data) {
- while (!list_empty(head)) {
- req = nfs_list_entry(head->next);
- nfs_list_remove_request(req);
- nfs_redirty_request(req);
- }
- ret = -ENOMEM;
- goto out;
+ nfs_flush_error(desc, hdr);
+ return -ENOMEM;
}
- pages = data->pagevec;
+
+ nfs_init_cinfo(&cinfo, desc->pg_inode, desc->pg_dreq);
+ pages = data->pages.pagevec;
while (!list_empty(head)) {
req = nfs_list_entry(head->next);
nfs_list_remove_request(req);
- nfs_list_add_request(req, &data->pages);
+ nfs_list_add_request(req, &hdr->pages);
*pages++ = req->wb_page;
}
- req = nfs_list_entry(data->pages.next);
if ((desc->pg_ioflags & FLUSH_COND_STABLE) &&
- (desc->pg_moreio || NFS_I(desc->pg_inode)->ncommit))
+ (desc->pg_moreio || nfs_reqs_to_commit(&cinfo)))
desc->pg_ioflags &= ~FLUSH_COND_STABLE;
/* Set up the argument struct */
- nfs_write_rpcsetup(req, data, desc->pg_count, 0, desc->pg_ioflags);
- list_add(&data->list, res);
- desc->pg_rpc_callops = &nfs_write_full_ops;
-out:
- return ret;
+ nfs_write_rpcsetup(data, desc->pg_count, 0, desc->pg_ioflags, &cinfo);
+ list_add(&data->list, &hdr->rpc_list);
+ desc->pg_rpc_callops = &nfs_write_common_ops;
+ return 0;
}
-int nfs_generic_flush(struct nfs_pageio_descriptor *desc, struct list_head *head)
+int nfs_generic_flush(struct nfs_pageio_descriptor *desc,
+ struct nfs_pgio_header *hdr)
{
if (desc->pg_bsize < PAGE_CACHE_SIZE)
- return nfs_flush_multi(desc, head);
- return nfs_flush_one(desc, head);
+ return nfs_flush_multi(desc, hdr);
+ return nfs_flush_one(desc, hdr);
}
static int nfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc)
{
- LIST_HEAD(head);
+ struct nfs_write_header *whdr;
+ struct nfs_pgio_header *hdr;
int ret;
- ret = nfs_generic_flush(desc, &head);
+ whdr = nfs_writehdr_alloc();
+ if (!whdr) {
+ desc->pg_completion_ops->error_cleanup(&desc->pg_list);
+ return -ENOMEM;
+ }
+ hdr = &whdr->header;
+ nfs_pgheader_init(desc, hdr, nfs_writehdr_free);
+ atomic_inc(&hdr->refcnt);
+ ret = nfs_generic_flush(desc, hdr);
if (ret == 0)
- ret = nfs_do_multiple_writes(&head, desc->pg_rpc_callops,
- desc->pg_ioflags);
+ ret = nfs_do_multiple_writes(&hdr->rpc_list,
+ desc->pg_rpc_callops,
+ desc->pg_ioflags);
+ if (atomic_dec_and_test(&hdr->refcnt))
+ hdr->completion_ops->completion(hdr);
return ret;
}
};
void nfs_pageio_init_write_mds(struct nfs_pageio_descriptor *pgio,
- struct inode *inode, int ioflags)
+ struct inode *inode, int ioflags,
+ const struct nfs_pgio_completion_ops *compl_ops)
{
- nfs_pageio_init(pgio, inode, &nfs_pageio_write_ops,
+ nfs_pageio_init(pgio, inode, &nfs_pageio_write_ops, compl_ops,
NFS_SERVER(inode)->wsize, ioflags);
}
}
EXPORT_SYMBOL_GPL(nfs_pageio_reset_write_mds);
-static void nfs_pageio_init_write(struct nfs_pageio_descriptor *pgio,
- struct inode *inode, int ioflags)
+void nfs_pageio_init_write(struct nfs_pageio_descriptor *pgio,
+ struct inode *inode, int ioflags,
+ const struct nfs_pgio_completion_ops *compl_ops)
{
- if (!pnfs_pageio_init_write(pgio, inode, ioflags))
- nfs_pageio_init_write_mds(pgio, inode, ioflags);
+ if (!pnfs_pageio_init_write(pgio, inode, ioflags, compl_ops))
+ nfs_pageio_init_write_mds(pgio, inode, ioflags, compl_ops);
}
-/*
- * Handle a write reply that flushed part of a page.
- */
-static void nfs_writeback_done_partial(struct rpc_task *task, void *calldata)
+void nfs_write_prepare(struct rpc_task *task, void *calldata)
{
- struct nfs_write_data *data = calldata;
-
- dprintk("NFS: %5u write(%s/%lld %d@%lld)",
- task->tk_pid,
- data->req->wb_context->dentry->d_inode->i_sb->s_id,
- (long long)
- NFS_FILEID(data->req->wb_context->dentry->d_inode),
- data->req->wb_bytes, (long long)req_offset(data->req));
-
- nfs_writeback_done(task, data);
+ struct nfs_write_data *data = calldata;
+ NFS_PROTO(data->header->inode)->write_rpc_prepare(task, data);
}
-static void nfs_writeback_release_partial(void *calldata)
+void nfs_commit_prepare(struct rpc_task *task, void *calldata)
{
- struct nfs_write_data *data = calldata;
- struct nfs_page *req = data->req;
- struct page *page = req->wb_page;
- int status = data->task.tk_status;
+ struct nfs_commit_data *data = calldata;
- if (status < 0) {
- nfs_set_pageerror(page);
- nfs_context_set_write_error(req->wb_context, status);
- dprintk(", error = %d\n", status);
- goto out;
- }
-
- if (nfs_write_need_commit(data)) {
- struct inode *inode = page->mapping->host;
-
- spin_lock(&inode->i_lock);
- if (test_bit(PG_NEED_RESCHED, &req->wb_flags)) {
- /* Do nothing we need to resend the writes */
- } else if (!test_and_set_bit(PG_NEED_COMMIT, &req->wb_flags)) {
- memcpy(&req->wb_verf, &data->verf, sizeof(req->wb_verf));
- dprintk(" defer commit\n");
- } else if (memcmp(&req->wb_verf, &data->verf, sizeof(req->wb_verf))) {
- set_bit(PG_NEED_RESCHED, &req->wb_flags);
- clear_bit(PG_NEED_COMMIT, &req->wb_flags);
- dprintk(" server reboot detected\n");
- }
- spin_unlock(&inode->i_lock);
- } else
- dprintk(" OK\n");
-
-out:
- if (atomic_dec_and_test(&req->wb_complete))
- nfs_writepage_release(req, data);
- nfs_writedata_release(calldata);
+ NFS_PROTO(data->inode)->commit_rpc_prepare(task, data);
}
-void nfs_write_prepare(struct rpc_task *task, void *calldata)
-{
- struct nfs_write_data *data = calldata;
- NFS_PROTO(data->inode)->write_rpc_prepare(task, data);
-}
-
-static const struct rpc_call_ops nfs_write_partial_ops = {
- .rpc_call_prepare = nfs_write_prepare,
- .rpc_call_done = nfs_writeback_done_partial,
- .rpc_release = nfs_writeback_release_partial,
-};
-
/*
* Handle a write reply that flushes a whole page.
*
* writebacks since the page->count is kept > 1 for as long
* as the page has a write request pending.
*/
-static void nfs_writeback_done_full(struct rpc_task *task, void *calldata)
+static void nfs_writeback_done_common(struct rpc_task *task, void *calldata)
{
struct nfs_write_data *data = calldata;
nfs_writeback_done(task, data);
}
-static void nfs_writeback_release_full(void *calldata)
+static void nfs_writeback_release_common(void *calldata)
{
struct nfs_write_data *data = calldata;
+ struct nfs_pgio_header *hdr = data->header;
int status = data->task.tk_status;
+ struct nfs_page *req = hdr->req;
- /* Update attributes as result of writeback. */
- while (!list_empty(&data->pages)) {
- struct nfs_page *req = nfs_list_entry(data->pages.next);
- struct page *page = req->wb_page;
-
- nfs_list_remove_request(req);
-
- dprintk("NFS: %5u write (%s/%lld %d@%lld)",
- data->task.tk_pid,
- req->wb_context->dentry->d_inode->i_sb->s_id,
- (long long)NFS_FILEID(req->wb_context->dentry->d_inode),
- req->wb_bytes,
- (long long)req_offset(req));
-
- if (status < 0) {
- nfs_set_pageerror(page);
- nfs_context_set_write_error(req->wb_context, status);
- dprintk(", error = %d\n", status);
- goto remove_request;
- }
-
- if (nfs_write_need_commit(data)) {
+ if ((status >= 0) && nfs_write_need_commit(data)) {
+ spin_lock(&hdr->lock);
+ if (test_bit(NFS_IOHDR_NEED_RESCHED, &hdr->flags))
+ ; /* Do nothing */
+ else if (!test_and_set_bit(NFS_IOHDR_NEED_COMMIT, &hdr->flags))
memcpy(&req->wb_verf, &data->verf, sizeof(req->wb_verf));
- nfs_mark_request_commit(req, data->lseg);
- dprintk(" marked for commit\n");
- goto next;
- }
- dprintk(" OK\n");
-remove_request:
- nfs_inode_remove_request(req);
- next:
- nfs_unlock_request(req);
- nfs_end_page_writeback(page);
+ else if (memcmp(&req->wb_verf, &data->verf, sizeof(req->wb_verf)))
+ set_bit(NFS_IOHDR_NEED_RESCHED, &hdr->flags);
+ spin_unlock(&hdr->lock);
}
- nfs_writedata_release(calldata);
+ nfs_writedata_release(data);
}
-static const struct rpc_call_ops nfs_write_full_ops = {
+static const struct rpc_call_ops nfs_write_common_ops = {
.rpc_call_prepare = nfs_write_prepare,
- .rpc_call_done = nfs_writeback_done_full,
- .rpc_release = nfs_writeback_release_full,
+ .rpc_call_done = nfs_writeback_done_common,
+ .rpc_release = nfs_writeback_release_common,
};
{
struct nfs_writeargs *argp = &data->args;
struct nfs_writeres *resp = &data->res;
+ struct inode *inode = data->header->inode;
int status;
dprintk("NFS: %5u nfs_writeback_done (status %d)\n",
* another writer had changed the file, but some applications
* depend on tighter cache coherency when writing.
*/
- status = NFS_PROTO(data->inode)->write_done(task, data);
+ status = NFS_PROTO(inode)->write_done(task, data);
if (status != 0)
return;
- nfs_add_stats(data->inode, NFSIOS_SERVERWRITTENBYTES, resp->count);
+ nfs_add_stats(inode, NFSIOS_SERVERWRITTENBYTES, resp->count);
#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
if (resp->verf->committed < argp->stable && task->tk_status >= 0) {
if (time_before(complain, jiffies)) {
dprintk("NFS: faulty NFS server %s:"
" (committed = %d) != (stable = %d)\n",
- NFS_SERVER(data->inode)->nfs_client->cl_hostname,
+ NFS_SERVER(inode)->nfs_client->cl_hostname,
resp->verf->committed, argp->stable);
complain = jiffies + 300 * HZ;
}
}
#endif
- /* Is this a short write? */
- if (task->tk_status >= 0 && resp->count < argp->count) {
+ if (task->tk_status < 0)
+ nfs_set_pgio_error(data->header, task->tk_status, argp->offset);
+ else if (resp->count < argp->count) {
static unsigned long complain;
- nfs_inc_stats(data->inode, NFSIOS_SHORTWRITE);
+ /* This a short write! */
+ nfs_inc_stats(inode, NFSIOS_SHORTWRITE);
/* Has the server at least made some progress? */
- if (resp->count != 0) {
- /* Was this an NFSv2 write or an NFSv3 stable write? */
- if (resp->verf->committed != NFS_UNSTABLE) {
- /* Resend from where the server left off */
- data->mds_offset += resp->count;
- argp->offset += resp->count;
- argp->pgbase += resp->count;
- argp->count -= resp->count;
- } else {
- /* Resend as a stable write in order to avoid
- * headaches in the case of a server crash.
- */
- argp->stable = NFS_FILE_SYNC;
+ if (resp->count == 0) {
+ if (time_before(complain, jiffies)) {
+ printk(KERN_WARNING
+ "NFS: Server wrote zero bytes, expected %u.\n",
+ argp->count);
+ complain = jiffies + 300 * HZ;
}
- rpc_restart_call_prepare(task);
+ nfs_set_pgio_error(data->header, -EIO, argp->offset);
+ task->tk_status = -EIO;
return;
}
- if (time_before(complain, jiffies)) {
- printk(KERN_WARNING
- "NFS: Server wrote zero bytes, expected %u.\n",
- argp->count);
- complain = jiffies + 300 * HZ;
+ /* Was this an NFSv2 write or an NFSv3 stable write? */
+ if (resp->verf->committed != NFS_UNSTABLE) {
+ /* Resend from where the server left off */
+ data->mds_offset += resp->count;
+ argp->offset += resp->count;
+ argp->pgbase += resp->count;
+ argp->count -= resp->count;
+ } else {
+ /* Resend as a stable write in order to avoid
+ * headaches in the case of a server crash.
+ */
+ argp->stable = NFS_FILE_SYNC;
}
- /* Can't do anything about it except throw an error. */
- task->tk_status = -EIO;
+ rpc_restart_call_prepare(task);
}
- return;
}
return (ret < 0) ? ret : 1;
}
-void nfs_commit_clear_lock(struct nfs_inode *nfsi)
+static void nfs_commit_clear_lock(struct nfs_inode *nfsi)
{
clear_bit(NFS_INO_COMMIT, &nfsi->flags);
smp_mb__after_clear_bit();
wake_up_bit(&nfsi->flags, NFS_INO_COMMIT);
}
-EXPORT_SYMBOL_GPL(nfs_commit_clear_lock);
-void nfs_commitdata_release(void *data)
+void nfs_commitdata_release(struct nfs_commit_data *data)
{
- struct nfs_write_data *wdata = data;
-
- put_nfs_open_context(wdata->args.context);
- nfs_commit_free(wdata);
+ put_nfs_open_context(data->context);
+ nfs_commit_free(data);
}
EXPORT_SYMBOL_GPL(nfs_commitdata_release);
-int nfs_initiate_commit(struct nfs_write_data *data, struct rpc_clnt *clnt,
+int nfs_initiate_commit(struct rpc_clnt *clnt, struct nfs_commit_data *data,
const struct rpc_call_ops *call_ops,
- int how)
+ int how, int flags)
{
struct rpc_task *task;
int priority = flush_task_priority(how);
.callback_ops = call_ops,
.callback_data = data,
.workqueue = nfsiod_workqueue,
- .flags = RPC_TASK_ASYNC,
+ .flags = RPC_TASK_ASYNC | flags,
.priority = priority,
};
/* Set up the initial task struct. */
/*
* Set up the argument/result storage required for the RPC call.
*/
-void nfs_init_commit(struct nfs_write_data *data,
- struct list_head *head,
- struct pnfs_layout_segment *lseg)
+void nfs_init_commit(struct nfs_commit_data *data,
+ struct list_head *head,
+ struct pnfs_layout_segment *lseg,
+ struct nfs_commit_info *cinfo)
{
struct nfs_page *first = nfs_list_entry(head->next);
struct inode *inode = first->wb_context->dentry->d_inode;
data->cred = first->wb_context->cred;
data->lseg = lseg; /* reference transferred */
data->mds_ops = &nfs_commit_ops;
+ data->completion_ops = cinfo->completion_ops;
+ data->dreq = cinfo->dreq;
data->args.fh = NFS_FH(data->inode);
/* Note: we always request a commit of the entire inode */
data->args.offset = 0;
data->args.count = 0;
- data->args.context = get_nfs_open_context(first->wb_context);
- data->res.count = 0;
+ data->context = get_nfs_open_context(first->wb_context);
data->res.fattr = &data->fattr;
data->res.verf = &data->verf;
nfs_fattr_init(&data->fattr);
EXPORT_SYMBOL_GPL(nfs_init_commit);
void nfs_retry_commit(struct list_head *page_list,
- struct pnfs_layout_segment *lseg)
+ struct pnfs_layout_segment *lseg,
+ struct nfs_commit_info *cinfo)
{
struct nfs_page *req;
while (!list_empty(page_list)) {
req = nfs_list_entry(page_list->next);
nfs_list_remove_request(req);
- nfs_mark_request_commit(req, lseg);
- dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
- dec_bdi_stat(req->wb_page->mapping->backing_dev_info,
- BDI_RECLAIMABLE);
- nfs_unlock_request(req);
+ nfs_mark_request_commit(req, lseg, cinfo);
+ if (!cinfo->dreq) {
+ dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
+ dec_bdi_stat(req->wb_page->mapping->backing_dev_info,
+ BDI_RECLAIMABLE);
+ }
+ nfs_unlock_and_release_request(req);
}
}
EXPORT_SYMBOL_GPL(nfs_retry_commit);
* Commit dirty pages
*/
static int
-nfs_commit_list(struct inode *inode, struct list_head *head, int how)
+nfs_commit_list(struct inode *inode, struct list_head *head, int how,
+ struct nfs_commit_info *cinfo)
{
- struct nfs_write_data *data;
+ struct nfs_commit_data *data;
data = nfs_commitdata_alloc();
goto out_bad;
/* Set up the argument struct */
- nfs_init_commit(data, head, NULL);
- return nfs_initiate_commit(data, NFS_CLIENT(inode), data->mds_ops, how);
+ nfs_init_commit(data, head, NULL, cinfo);
+ atomic_inc(&cinfo->mds->rpcs_out);
+ return nfs_initiate_commit(NFS_CLIENT(inode), data, data->mds_ops,
+ how, 0);
out_bad:
- nfs_retry_commit(head, NULL);
- nfs_commit_clear_lock(NFS_I(inode));
+ nfs_retry_commit(head, NULL, cinfo);
+ cinfo->completion_ops->error_cleanup(NFS_I(inode));
return -ENOMEM;
}
*/
static void nfs_commit_done(struct rpc_task *task, void *calldata)
{
- struct nfs_write_data *data = calldata;
+ struct nfs_commit_data *data = calldata;
dprintk("NFS: %5u nfs_commit_done (status %d)\n",
task->tk_pid, task->tk_status);
NFS_PROTO(data->inode)->commit_done(task, data);
}
-void nfs_commit_release_pages(struct nfs_write_data *data)
+static void nfs_commit_release_pages(struct nfs_commit_data *data)
{
struct nfs_page *req;
int status = data->task.tk_status;
+ struct nfs_commit_info cinfo;
while (!list_empty(&data->pages)) {
req = nfs_list_entry(data->pages.next);
dprintk(" mismatch\n");
nfs_mark_request_dirty(req);
next:
- nfs_unlock_request(req);
+ nfs_unlock_and_release_request(req);
}
+ nfs_init_cinfo(&cinfo, data->inode, data->dreq);
+ if (atomic_dec_and_test(&cinfo.mds->rpcs_out))
+ nfs_commit_clear_lock(NFS_I(data->inode));
}
-EXPORT_SYMBOL_GPL(nfs_commit_release_pages);
static void nfs_commit_release(void *calldata)
{
- struct nfs_write_data *data = calldata;
+ struct nfs_commit_data *data = calldata;
- nfs_commit_release_pages(data);
- nfs_commit_clear_lock(NFS_I(data->inode));
+ data->completion_ops->completion(data);
nfs_commitdata_release(calldata);
}
static const struct rpc_call_ops nfs_commit_ops = {
- .rpc_call_prepare = nfs_write_prepare,
+ .rpc_call_prepare = nfs_commit_prepare,
.rpc_call_done = nfs_commit_done,
.rpc_release = nfs_commit_release,
};
+static const struct nfs_commit_completion_ops nfs_commit_completion_ops = {
+ .completion = nfs_commit_release_pages,
+ .error_cleanup = nfs_commit_clear_lock,
+};
+
+int nfs_generic_commit_list(struct inode *inode, struct list_head *head,
+ int how, struct nfs_commit_info *cinfo)
+{
+ int status;
+
+ status = pnfs_commit_list(inode, head, how, cinfo);
+ if (status == PNFS_NOT_ATTEMPTED)
+ status = nfs_commit_list(inode, head, how, cinfo);
+ return status;
+}
+
int nfs_commit_inode(struct inode *inode, int how)
{
LIST_HEAD(head);
+ struct nfs_commit_info cinfo;
int may_wait = how & FLUSH_SYNC;
int res;
res = nfs_commit_set_lock(NFS_I(inode), may_wait);
if (res <= 0)
goto out_mark_dirty;
- res = nfs_scan_commit(inode, &head);
+ nfs_init_cinfo_from_inode(&cinfo, inode);
+ res = nfs_scan_commit(inode, &head, &cinfo);
if (res) {
int error;
- error = pnfs_commit_list(inode, &head, how);
- if (error == PNFS_NOT_ATTEMPTED)
- error = nfs_commit_list(inode, &head, how);
+ error = nfs_generic_commit_list(inode, &head, how, &cinfo);
if (error < 0)
return error;
if (!may_wait)
int ret = 0;
/* no commits means nothing needs to be done */
- if (!nfsi->ncommit)
+ if (!nfsi->commit_info.ncommit)
return ret;
if (wbc->sync_mode == WB_SYNC_NONE) {
/* Don't commit yet if this is a non-blocking flush and there
* are a lot of outstanding writes for this mapping.
*/
- if (nfsi->ncommit <= (nfsi->npages >> 1))
+ if (nfsi->commit_info.ncommit <= (nfsi->npages >> 1))
goto out_mark_dirty;
/* don't wait for the COMMIT response */
req = nfs_page_find_request(page);
if (req == NULL)
break;
- if (nfs_lock_request_dontget(req)) {
+ if (nfs_lock_request(req)) {
nfs_clear_request_commit(req);
nfs_inode_remove_request(req);
/*
* page as being dirty
*/
cancel_dirty_page(page, PAGE_CACHE_SIZE);
- nfs_unlock_request(req);
+ nfs_unlock_and_release_request(req);
break;
}
ret = nfs_wait_on_request(req);
int __init nfs_init_writepagecache(void)
{
nfs_wdata_cachep = kmem_cache_create("nfs_write_data",
- sizeof(struct nfs_write_data),
+ sizeof(struct nfs_write_header),
0, SLAB_HWCACHE_ALIGN,
NULL);
if (nfs_wdata_cachep == NULL)
if (nfs_wdata_mempool == NULL)
return -ENOMEM;
+ nfs_cdata_cachep = kmem_cache_create("nfs_commit_data",
+ sizeof(struct nfs_commit_data),
+ 0, SLAB_HWCACHE_ALIGN,
+ NULL);
+ if (nfs_cdata_cachep == NULL)
+ return -ENOMEM;
+
nfs_commit_mempool = mempool_create_slab_pool(MIN_POOL_COMMIT,
nfs_wdata_cachep);
if (nfs_commit_mempool == NULL)
struct exp_flavor_info *end = exp->ex_flavors + exp->ex_nflavors;
for (f = exp->ex_flavors; f < end; f++) {
- if (f->pseudoflavor == rqstp->rq_flavor)
+ if (f->pseudoflavor == rqstp->rq_cred.cr_flavor)
return f->flags;
}
return exp->ex_flags;
#include <linux/namei.h>
#include <linux/module.h>
#include <linux/exportfs.h>
+#include <linux/sunrpc/svc_xprt.h>
#include <net/ipv6.h>
#include "nfsd.h"
#include "nfsfh.h"
+#include "netns.h"
#define NFSDDBG_FACILITY NFSDDBG_EXPORT
#define EXPKEY_HASHBITS 8
#define EXPKEY_HASHMAX (1 << EXPKEY_HASHBITS)
#define EXPKEY_HASHMASK (EXPKEY_HASHMAX -1)
-static struct cache_head *expkey_table[EXPKEY_HASHMAX];
static void expkey_put(struct kref *ref)
{
return sunrpc_cache_pipe_upcall(cd, h, expkey_request);
}
-static struct svc_expkey *svc_expkey_update(struct svc_expkey *new, struct svc_expkey *old);
-static struct svc_expkey *svc_expkey_lookup(struct svc_expkey *);
-static struct cache_detail svc_expkey_cache;
+static struct svc_expkey *svc_expkey_update(struct cache_detail *cd, struct svc_expkey *new,
+ struct svc_expkey *old);
+static struct svc_expkey *svc_expkey_lookup(struct cache_detail *cd, struct svc_expkey *);
static int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
{
key.ek_fsidtype = fsidtype;
memcpy(key.ek_fsid, buf, len);
- ek = svc_expkey_lookup(&key);
+ ek = svc_expkey_lookup(cd, &key);
err = -ENOMEM;
if (!ek)
goto out;
err = 0;
if (len == 0) {
set_bit(CACHE_NEGATIVE, &key.h.flags);
- ek = svc_expkey_update(&key, ek);
+ ek = svc_expkey_update(cd, &key, ek);
if (!ek)
err = -ENOMEM;
} else {
dprintk("Found the path %s\n", buf);
- ek = svc_expkey_update(&key, ek);
+ ek = svc_expkey_update(cd, &key, ek);
if (!ek)
err = -ENOMEM;
path_put(&key.ek_path);
cache_flush();
out:
if (ek)
- cache_put(&ek->h, &svc_expkey_cache);
+ cache_put(&ek->h, cd);
if (dom)
auth_domain_put(dom);
kfree(buf);
return NULL;
}
-static struct cache_detail svc_expkey_cache = {
+static struct cache_detail svc_expkey_cache_template = {
.owner = THIS_MODULE,
.hash_size = EXPKEY_HASHMAX,
- .hash_table = expkey_table,
.name = "nfsd.fh",
.cache_put = expkey_put,
.cache_upcall = expkey_upcall,
}
static struct svc_expkey *
-svc_expkey_lookup(struct svc_expkey *item)
+svc_expkey_lookup(struct cache_detail *cd, struct svc_expkey *item)
{
struct cache_head *ch;
int hash = svc_expkey_hash(item);
- ch = sunrpc_cache_lookup(&svc_expkey_cache, &item->h,
- hash);
+ ch = sunrpc_cache_lookup(cd, &item->h, hash);
if (ch)
return container_of(ch, struct svc_expkey, h);
else
}
static struct svc_expkey *
-svc_expkey_update(struct svc_expkey *new, struct svc_expkey *old)
+svc_expkey_update(struct cache_detail *cd, struct svc_expkey *new,
+ struct svc_expkey *old)
{
struct cache_head *ch;
int hash = svc_expkey_hash(new);
- ch = sunrpc_cache_update(&svc_expkey_cache, &new->h,
- &old->h, hash);
+ ch = sunrpc_cache_update(cd, &new->h, &old->h, hash);
if (ch)
return container_of(ch, struct svc_expkey, h);
else
#define EXPORT_HASHBITS 8
#define EXPORT_HASHMAX (1<< EXPORT_HASHBITS)
-static struct cache_head *export_table[EXPORT_HASHMAX];
-
static void nfsd4_fslocs_free(struct nfsd4_fs_locations *fsloc)
{
int i;
goto out1;
exp.ex_client = dom;
+ exp.cd = cd;
/* expiry */
err = -EINVAL;
new->ex_fslocs.locations = NULL;
new->ex_fslocs.locations_count = 0;
new->ex_fslocs.migrated = 0;
+ new->cd = item->cd;
}
static void export_update(struct cache_head *cnew, struct cache_head *citem)
return NULL;
}
-struct cache_detail svc_export_cache = {
+static struct cache_detail svc_export_cache_template = {
.owner = THIS_MODULE,
.hash_size = EXPORT_HASHMAX,
- .hash_table = export_table,
.name = "nfsd.export",
.cache_put = svc_export_put,
.cache_upcall = svc_export_upcall,
struct cache_head *ch;
int hash = svc_export_hash(exp);
- ch = sunrpc_cache_lookup(&svc_export_cache, &exp->h,
- hash);
+ ch = sunrpc_cache_lookup(exp->cd, &exp->h, hash);
if (ch)
return container_of(ch, struct svc_export, h);
else
struct cache_head *ch;
int hash = svc_export_hash(old);
- ch = sunrpc_cache_update(&svc_export_cache, &new->h,
- &old->h,
- hash);
+ ch = sunrpc_cache_update(old->cd, &new->h, &old->h, hash);
if (ch)
return container_of(ch, struct svc_export, h);
else
static struct svc_expkey *
-exp_find_key(svc_client *clp, int fsid_type, u32 *fsidv, struct cache_req *reqp)
+exp_find_key(struct cache_detail *cd, svc_client *clp, int fsid_type,
+ u32 *fsidv, struct cache_req *reqp)
{
struct svc_expkey key, *ek;
int err;
key.ek_fsidtype = fsid_type;
memcpy(key.ek_fsid, fsidv, key_len(fsid_type));
- ek = svc_expkey_lookup(&key);
+ ek = svc_expkey_lookup(cd, &key);
if (ek == NULL)
return ERR_PTR(-ENOMEM);
- err = cache_check(&svc_expkey_cache, &ek->h, reqp);
+ err = cache_check(cd, &ek->h, reqp);
if (err)
return ERR_PTR(err);
return ek;
}
-static svc_export *exp_get_by_name(svc_client *clp, const struct path *path,
- struct cache_req *reqp)
+static svc_export *exp_get_by_name(struct cache_detail *cd, svc_client *clp,
+ const struct path *path, struct cache_req *reqp)
{
struct svc_export *exp, key;
int err;
key.ex_client = clp;
key.ex_path = *path;
+ key.cd = cd;
exp = svc_export_lookup(&key);
if (exp == NULL)
return ERR_PTR(-ENOMEM);
- err = cache_check(&svc_export_cache, &exp->h, reqp);
+ err = cache_check(cd, &exp->h, reqp);
if (err)
return ERR_PTR(err);
return exp;
/*
* Find the export entry for a given dentry.
*/
-static struct svc_export *exp_parent(svc_client *clp, struct path *path)
+static struct svc_export *exp_parent(struct cache_detail *cd, svc_client *clp,
+ struct path *path)
{
struct dentry *saved = dget(path->dentry);
- svc_export *exp = exp_get_by_name(clp, path, NULL);
+ svc_export *exp = exp_get_by_name(cd, clp, path, NULL);
while (PTR_ERR(exp) == -ENOENT && !IS_ROOT(path->dentry)) {
struct dentry *parent = dget_parent(path->dentry);
dput(path->dentry);
path->dentry = parent;
- exp = exp_get_by_name(clp, path, NULL);
+ exp = exp_get_by_name(cd, clp, path, NULL);
}
dput(path->dentry);
path->dentry = saved;
* since its harder to fool a kernel module than a user space program.
*/
int
-exp_rootfh(svc_client *clp, char *name, struct knfsd_fh *f, int maxsize)
+exp_rootfh(struct net *net, svc_client *clp, char *name,
+ struct knfsd_fh *f, int maxsize)
{
struct svc_export *exp;
struct path path;
struct inode *inode;
struct svc_fh fh;
int err;
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);
+ struct cache_detail *cd = nn->svc_export_cache;
err = -EPERM;
/* NB: we probably ought to check that it's NUL-terminated */
dprintk("nfsd: exp_rootfh(%s [%p] %s:%s/%ld)\n",
name, path.dentry, clp->name,
inode->i_sb->s_id, inode->i_ino);
- exp = exp_parent(clp, &path);
+ exp = exp_parent(cd, clp, &path);
if (IS_ERR(exp)) {
err = PTR_ERR(exp);
goto out;
return err;
}
-static struct svc_export *exp_find(struct auth_domain *clp, int fsid_type,
+static struct svc_export *exp_find(struct cache_detail *cd,
+ struct auth_domain *clp, int fsid_type,
u32 *fsidv, struct cache_req *reqp)
{
struct svc_export *exp;
- struct svc_expkey *ek = exp_find_key(clp, fsid_type, fsidv, reqp);
+ struct nfsd_net *nn = net_generic(cd->net, nfsd_net_id);
+ struct svc_expkey *ek = exp_find_key(nn->svc_expkey_cache, clp, fsid_type, fsidv, reqp);
if (IS_ERR(ek))
return ERR_CAST(ek);
- exp = exp_get_by_name(clp, &ek->ek_path, reqp);
- cache_put(&ek->h, &svc_expkey_cache);
+ exp = exp_get_by_name(cd, clp, &ek->ek_path, reqp);
+ cache_put(&ek->h, nn->svc_expkey_cache);
if (IS_ERR(exp))
return ERR_CAST(exp);
return 0;
/* ip-address based client; check sec= export option: */
for (f = exp->ex_flavors; f < end; f++) {
- if (f->pseudoflavor == rqstp->rq_flavor)
+ if (f->pseudoflavor == rqstp->rq_cred.cr_flavor)
return 0;
}
/* defaults in absence of sec= options: */
if (exp->ex_nflavors == 0) {
- if (rqstp->rq_flavor == RPC_AUTH_NULL ||
- rqstp->rq_flavor == RPC_AUTH_UNIX)
+ if (rqstp->rq_cred.cr_flavor == RPC_AUTH_NULL ||
+ rqstp->rq_cred.cr_flavor == RPC_AUTH_UNIX)
return 0;
}
return nfserr_wrongsec;
rqst_exp_get_by_name(struct svc_rqst *rqstp, struct path *path)
{
struct svc_export *gssexp, *exp = ERR_PTR(-ENOENT);
+ struct nfsd_net *nn = net_generic(rqstp->rq_xprt->xpt_net, nfsd_net_id);
+ struct cache_detail *cd = nn->svc_export_cache;
if (rqstp->rq_client == NULL)
goto gss;
/* First try the auth_unix client: */
- exp = exp_get_by_name(rqstp->rq_client, path, &rqstp->rq_chandle);
+ exp = exp_get_by_name(cd, rqstp->rq_client, path, &rqstp->rq_chandle);
if (PTR_ERR(exp) == -ENOENT)
goto gss;
if (IS_ERR(exp))
/* Otherwise, try falling back on gss client */
if (rqstp->rq_gssclient == NULL)
return exp;
- gssexp = exp_get_by_name(rqstp->rq_gssclient, path, &rqstp->rq_chandle);
+ gssexp = exp_get_by_name(cd, rqstp->rq_gssclient, path, &rqstp->rq_chandle);
if (PTR_ERR(gssexp) == -ENOENT)
return exp;
if (!IS_ERR(exp))
rqst_exp_find(struct svc_rqst *rqstp, int fsid_type, u32 *fsidv)
{
struct svc_export *gssexp, *exp = ERR_PTR(-ENOENT);
+ struct nfsd_net *nn = net_generic(rqstp->rq_xprt->xpt_net, nfsd_net_id);
+ struct cache_detail *cd = nn->svc_export_cache;
if (rqstp->rq_client == NULL)
goto gss;
/* First try the auth_unix client: */
- exp = exp_find(rqstp->rq_client, fsid_type, fsidv, &rqstp->rq_chandle);
+ exp = exp_find(cd, rqstp->rq_client, fsid_type,
+ fsidv, &rqstp->rq_chandle);
if (PTR_ERR(exp) == -ENOENT)
goto gss;
if (IS_ERR(exp))
/* Otherwise, try falling back on gss client */
if (rqstp->rq_gssclient == NULL)
return exp;
- gssexp = exp_find(rqstp->rq_gssclient, fsid_type, fsidv,
+ gssexp = exp_find(cd, rqstp->rq_gssclient, fsid_type, fsidv,
&rqstp->rq_chandle);
if (PTR_ERR(gssexp) == -ENOENT)
return exp;
/* Iterator */
static void *e_start(struct seq_file *m, loff_t *pos)
- __acquires(svc_export_cache.hash_lock)
+ __acquires(((struct cache_detail *)m->private)->hash_lock)
{
loff_t n = *pos;
unsigned hash, export;
struct cache_head *ch;
-
- read_lock(&svc_export_cache.hash_lock);
+ struct cache_detail *cd = m->private;
+ struct cache_head **export_table = cd->hash_table;
+
+ read_lock(&cd->hash_lock);
if (!n--)
return SEQ_START_TOKEN;
hash = n >> 32;
{
struct cache_head *ch = p;
int hash = (*pos >> 32);
+ struct cache_detail *cd = m->private;
+ struct cache_head **export_table = cd->hash_table;
if (p == SEQ_START_TOKEN)
hash = 0;
}
static void e_stop(struct seq_file *m, void *p)
- __releases(svc_export_cache.hash_lock)
+ __releases(((struct cache_detail *)m->private)->hash_lock)
{
- read_unlock(&svc_export_cache.hash_lock);
+ struct cache_detail *cd = m->private;
+
+ read_unlock(&cd->hash_lock);
}
static struct flags {
{
struct cache_head *cp = p;
struct svc_export *exp = container_of(cp, struct svc_export, h);
+ struct cache_detail *cd = m->private;
if (p == SEQ_START_TOKEN) {
seq_puts(m, "# Version 1.1\n");
}
cache_get(&exp->h);
- if (cache_check(&svc_export_cache, &exp->h, NULL))
+ if (cache_check(cd, &exp->h, NULL))
return 0;
- cache_put(&exp->h, &svc_export_cache);
- return svc_export_show(m, &svc_export_cache, cp);
+ exp_put(exp);
+ return svc_export_show(m, cd, cp);
}
const struct seq_operations nfs_exports_op = {
.show = e_show,
};
-
/*
* Initialize the exports module.
*/
int
-nfsd_export_init(void)
+nfsd_export_init(struct net *net)
{
int rv;
- dprintk("nfsd: initializing export module.\n");
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);
+
+ dprintk("nfsd: initializing export module (net: %p).\n", net);
- rv = cache_register_net(&svc_export_cache, &init_net);
+ nn->svc_export_cache = cache_create_net(&svc_export_cache_template, net);
+ if (IS_ERR(nn->svc_export_cache))
+ return PTR_ERR(nn->svc_export_cache);
+ rv = cache_register_net(nn->svc_export_cache, net);
if (rv)
- return rv;
- rv = cache_register_net(&svc_expkey_cache, &init_net);
+ goto destroy_export_cache;
+
+ nn->svc_expkey_cache = cache_create_net(&svc_expkey_cache_template, net);
+ if (IS_ERR(nn->svc_expkey_cache)) {
+ rv = PTR_ERR(nn->svc_expkey_cache);
+ goto unregister_export_cache;
+ }
+ rv = cache_register_net(nn->svc_expkey_cache, net);
if (rv)
- cache_unregister_net(&svc_export_cache, &init_net);
- return rv;
+ goto destroy_expkey_cache;
+ return 0;
+destroy_expkey_cache:
+ cache_destroy_net(nn->svc_expkey_cache, net);
+unregister_export_cache:
+ cache_unregister_net(nn->svc_export_cache, net);
+destroy_export_cache:
+ cache_destroy_net(nn->svc_export_cache, net);
+ return rv;
}
/*
* Flush exports table - called when last nfsd thread is killed
*/
void
-nfsd_export_flush(void)
+nfsd_export_flush(struct net *net)
{
- cache_purge(&svc_expkey_cache);
- cache_purge(&svc_export_cache);
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);
+
+ cache_purge(nn->svc_expkey_cache);
+ cache_purge(nn->svc_export_cache);
}
/*
* Shutdown the exports module.
*/
void
-nfsd_export_shutdown(void)
+nfsd_export_shutdown(struct net *net)
{
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);
- dprintk("nfsd: shutting down export module.\n");
+ dprintk("nfsd: shutting down export module (net: %p).\n", net);
- cache_unregister_net(&svc_expkey_cache, &init_net);
- cache_unregister_net(&svc_export_cache, &init_net);
- svcauth_unix_purge();
+ cache_unregister_net(nn->svc_expkey_cache, net);
+ cache_unregister_net(nn->svc_export_cache, net);
+ cache_destroy_net(nn->svc_expkey_cache, net);
+ cache_destroy_net(nn->svc_export_cache, net);
+ svcauth_unix_purge(net);
- dprintk("nfsd: export shutdown complete.\n");
+ dprintk("nfsd: export shutdown complete (net: %p).\n", net);
}
static int nfsd_inject_get(void *data, u64 *val)
{
+ *val = 0;
return 0;
}
#define IDMAP_NAMESZ 128
#ifdef CONFIG_NFSD_V4
-int nfsd_idmap_init(void);
-void nfsd_idmap_shutdown(void);
+int nfsd_idmap_init(struct net *);
+void nfsd_idmap_shutdown(struct net *);
#else
-static inline int nfsd_idmap_init(void)
+static inline int nfsd_idmap_init(struct net *net)
{
return 0;
}
-static inline void nfsd_idmap_shutdown(void)
+static inline void nfsd_idmap_shutdown(struct net *net)
{
}
#endif
struct nfsd_net {
struct cld_net *cld_net;
+
+ struct cache_detail *svc_expkey_cache;
+ struct cache_detail *svc_export_cache;
+
+ struct cache_detail *idtoname_cache;
+ struct cache_detail *nametoid_cache;
};
extern int nfsd_net_id;
struct rpc_clnt *client;
if (clp->cl_minorversion == 0) {
- if (!clp->cl_principal && (clp->cl_flavor >= RPC_AUTH_GSS_KRB5))
+ if (!clp->cl_cred.cr_principal &&
+ (clp->cl_flavor >= RPC_AUTH_GSS_KRB5))
return -EINVAL;
- args.client_name = clp->cl_principal;
+ args.client_name = clp->cl_cred.cr_principal;
args.prognumber = conn->cb_prog,
args.protocol = XPRT_TRANSPORT_TCP;
args.authflavor = clp->cl_flavor;
#include <linux/seq_file.h>
#include <linux/sched.h>
#include <linux/slab.h>
+#include <linux/sunrpc/svc_xprt.h>
#include <net/net_namespace.h>
#include "idmap.h"
#include "nfsd.h"
+#include "netns.h"
/*
* Turn off idmapping when using AUTH_SYS.
* ID -> Name cache
*/
-static struct cache_head *idtoname_table[ENT_HASHMAX];
-
static uint32_t
idtoname_hash(struct ent *ent)
{
static int idtoname_parse(struct cache_detail *, char *, int);
-static struct ent *idtoname_lookup(struct ent *);
-static struct ent *idtoname_update(struct ent *, struct ent *);
+static struct ent *idtoname_lookup(struct cache_detail *, struct ent *);
+static struct ent *idtoname_update(struct cache_detail *, struct ent *,
+ struct ent *);
-static struct cache_detail idtoname_cache = {
+static struct cache_detail idtoname_cache_template = {
.owner = THIS_MODULE,
.hash_size = ENT_HASHMAX,
- .hash_table = idtoname_table,
.name = "nfs4.idtoname",
.cache_put = ent_put,
.cache_upcall = idtoname_upcall,
goto out;
error = -ENOMEM;
- res = idtoname_lookup(&ent);
+ res = idtoname_lookup(cd, &ent);
if (!res)
goto out;
else
memcpy(ent.name, buf1, sizeof(ent.name));
error = -ENOMEM;
- res = idtoname_update(&ent, res);
+ res = idtoname_update(cd, &ent, res);
if (res == NULL)
goto out;
- cache_put(&res->h, &idtoname_cache);
+ cache_put(&res->h, cd);
error = 0;
out:
static struct ent *
-idtoname_lookup(struct ent *item)
+idtoname_lookup(struct cache_detail *cd, struct ent *item)
{
- struct cache_head *ch = sunrpc_cache_lookup(&idtoname_cache,
- &item->h,
+ struct cache_head *ch = sunrpc_cache_lookup(cd, &item->h,
idtoname_hash(item));
if (ch)
return container_of(ch, struct ent, h);
}
static struct ent *
-idtoname_update(struct ent *new, struct ent *old)
+idtoname_update(struct cache_detail *cd, struct ent *new, struct ent *old)
{
- struct cache_head *ch = sunrpc_cache_update(&idtoname_cache,
- &new->h, &old->h,
+ struct cache_head *ch = sunrpc_cache_update(cd, &new->h, &old->h,
idtoname_hash(new));
if (ch)
return container_of(ch, struct ent, h);
* Name -> ID cache
*/
-static struct cache_head *nametoid_table[ENT_HASHMAX];
-
static inline int
nametoid_hash(struct ent *ent)
{
return 0;
}
-static struct ent *nametoid_lookup(struct ent *);
-static struct ent *nametoid_update(struct ent *, struct ent *);
+static struct ent *nametoid_lookup(struct cache_detail *, struct ent *);
+static struct ent *nametoid_update(struct cache_detail *, struct ent *,
+ struct ent *);
static int nametoid_parse(struct cache_detail *, char *, int);
-static struct cache_detail nametoid_cache = {
+static struct cache_detail nametoid_cache_template = {
.owner = THIS_MODULE,
.hash_size = ENT_HASHMAX,
- .hash_table = nametoid_table,
.name = "nfs4.nametoid",
.cache_put = ent_put,
.cache_upcall = nametoid_upcall,
set_bit(CACHE_NEGATIVE, &ent.h.flags);
error = -ENOMEM;
- res = nametoid_lookup(&ent);
+ res = nametoid_lookup(cd, &ent);
if (res == NULL)
goto out;
- res = nametoid_update(&ent, res);
+ res = nametoid_update(cd, &ent, res);
if (res == NULL)
goto out;
- cache_put(&res->h, &nametoid_cache);
+ cache_put(&res->h, cd);
error = 0;
out:
kfree(buf1);
static struct ent *
-nametoid_lookup(struct ent *item)
+nametoid_lookup(struct cache_detail *cd, struct ent *item)
{
- struct cache_head *ch = sunrpc_cache_lookup(&nametoid_cache,
- &item->h,
+ struct cache_head *ch = sunrpc_cache_lookup(cd, &item->h,
nametoid_hash(item));
if (ch)
return container_of(ch, struct ent, h);
}
static struct ent *
-nametoid_update(struct ent *new, struct ent *old)
+nametoid_update(struct cache_detail *cd, struct ent *new, struct ent *old)
{
- struct cache_head *ch = sunrpc_cache_update(&nametoid_cache,
- &new->h, &old->h,
+ struct cache_head *ch = sunrpc_cache_update(cd, &new->h, &old->h,
nametoid_hash(new));
if (ch)
return container_of(ch, struct ent, h);
*/
int
-nfsd_idmap_init(void)
+nfsd_idmap_init(struct net *net)
{
int rv;
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);
- rv = cache_register_net(&idtoname_cache, &init_net);
+ nn->idtoname_cache = cache_create_net(&idtoname_cache_template, net);
+ if (IS_ERR(nn->idtoname_cache))
+ return PTR_ERR(nn->idtoname_cache);
+ rv = cache_register_net(nn->idtoname_cache, net);
if (rv)
- return rv;
- rv = cache_register_net(&nametoid_cache, &init_net);
+ goto destroy_idtoname_cache;
+ nn->nametoid_cache = cache_create_net(&nametoid_cache_template, net);
+ if (IS_ERR(nn->nametoid_cache)) {
+ rv = PTR_ERR(nn->idtoname_cache);
+ goto unregister_idtoname_cache;
+ }
+ rv = cache_register_net(nn->nametoid_cache, net);
if (rv)
- cache_unregister_net(&idtoname_cache, &init_net);
+ goto destroy_nametoid_cache;
+ return 0;
+
+destroy_nametoid_cache:
+ cache_destroy_net(nn->nametoid_cache, net);
+unregister_idtoname_cache:
+ cache_unregister_net(nn->idtoname_cache, net);
+destroy_idtoname_cache:
+ cache_destroy_net(nn->idtoname_cache, net);
return rv;
}
void
-nfsd_idmap_shutdown(void)
+nfsd_idmap_shutdown(struct net *net)
{
- cache_unregister_net(&idtoname_cache, &init_net);
- cache_unregister_net(&nametoid_cache, &init_net);
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);
+
+ cache_unregister_net(nn->idtoname_cache, net);
+ cache_unregister_net(nn->nametoid_cache, net);
+ cache_destroy_net(nn->idtoname_cache, net);
+ cache_destroy_net(nn->nametoid_cache, net);
}
static int
idmap_lookup(struct svc_rqst *rqstp,
- struct ent *(*lookup_fn)(struct ent *), struct ent *key,
- struct cache_detail *detail, struct ent **item)
+ struct ent *(*lookup_fn)(struct cache_detail *, struct ent *),
+ struct ent *key, struct cache_detail *detail, struct ent **item)
{
int ret;
- *item = lookup_fn(key);
+ *item = lookup_fn(detail, key);
if (!*item)
return -ENOMEM;
retry:
if (ret == -ETIMEDOUT) {
struct ent *prev_item = *item;
- *item = lookup_fn(key);
+ *item = lookup_fn(detail, key);
if (*item != prev_item)
goto retry;
cache_put(&(*item)->h, detail);
.type = type,
};
int ret;
+ struct nfsd_net *nn = net_generic(rqstp->rq_xprt->xpt_net, nfsd_net_id);
if (namelen + 1 > sizeof(key.name))
return nfserr_badowner;
memcpy(key.name, name, namelen);
key.name[namelen] = '\0';
strlcpy(key.authname, rqst_authname(rqstp), sizeof(key.authname));
- ret = idmap_lookup(rqstp, nametoid_lookup, &key, &nametoid_cache, &item);
+ ret = idmap_lookup(rqstp, nametoid_lookup, &key, nn->nametoid_cache, &item);
if (ret == -ENOENT)
return nfserr_badowner;
if (ret)
return nfserrno(ret);
*id = item->id;
- cache_put(&item->h, &nametoid_cache);
+ cache_put(&item->h, nn->nametoid_cache);
return 0;
}
.type = type,
};
int ret;
+ struct nfsd_net *nn = net_generic(rqstp->rq_xprt->xpt_net, nfsd_net_id);
strlcpy(key.authname, rqst_authname(rqstp), sizeof(key.authname));
- ret = idmap_lookup(rqstp, idtoname_lookup, &key, &idtoname_cache, &item);
+ ret = idmap_lookup(rqstp, idtoname_lookup, &key, nn->idtoname_cache, &item);
if (ret == -ENOENT)
return sprintf(name, "%u", id);
if (ret)
ret = strlen(item->name);
BUG_ON(ret > IDMAP_NAMESZ);
memcpy(name, item->name, ret);
- cache_put(&item->h, &idtoname_cache);
+ cache_put(&item->h, nn->idtoname_cache);
return ret;
}
static __be32
do_name_to_id(struct svc_rqst *rqstp, int type, const char *name, u32 namelen, uid_t *id)
{
- if (nfs4_disable_idmapping && rqstp->rq_flavor < RPC_AUTH_GSS)
+ if (nfs4_disable_idmapping && rqstp->rq_cred.cr_flavor < RPC_AUTH_GSS)
if (numeric_name_to_id(rqstp, type, name, namelen, id))
return 0;
/*
static int
do_id_to_name(struct svc_rqst *rqstp, int type, uid_t id, char *name)
{
- if (nfs4_disable_idmapping && rqstp->rq_flavor < RPC_AUTH_GSS)
+ if (nfs4_disable_idmapping && rqstp->rq_cred.cr_flavor < RPC_AUTH_GSS)
return sprintf(name, "%u", id);
return idmap_id_to_name(rqstp, type, id, name);
}
cld_pipe_downcall(struct file *filp, const char __user *src, size_t mlen)
{
struct cld_upcall *tmp, *cup;
- struct cld_msg *cmsg = (struct cld_msg *)src;
+ struct cld_msg __user *cmsg = (struct cld_msg __user *)src;
uint32_t xid;
struct nfsd_net *nn = net_generic(filp->f_dentry->d_sb->s_fs_info,
nfsd_net_id);
return ret;
}
-struct notifier_block nfsd4_cld_block = {
+static struct notifier_block nfsd4_cld_block = {
.notifier_call = rpc_pipefs_event,
};
#include <linux/sunrpc/clnt.h>
#include "xdr4.h"
#include "vfs.h"
+#include "current_stateid.h"
#define NFSDDBG_FACILITY NFSDDBG_PROC
*
* which we should reject.
*/
-static void
-set_access(unsigned int *access, unsigned long bmap) {
+static unsigned int
+bmap_to_share_mode(unsigned long bmap) {
int i;
+ unsigned int access = 0;
- *access = 0;
for (i = 1; i < 4; i++) {
if (test_bit(i, &bmap))
- *access |= i;
- }
-}
-
-static void
-set_deny(unsigned int *deny, unsigned long bmap) {
- int i;
-
- *deny = 0;
- for (i = 0; i < 4; i++) {
- if (test_bit(i, &bmap))
- *deny |= i ;
+ access |= i;
}
+ return access;
}
-static int
+static bool
test_share(struct nfs4_ol_stateid *stp, struct nfsd4_open *open) {
unsigned int access, deny;
- set_access(&access, stp->st_access_bmap);
- set_deny(&deny, stp->st_deny_bmap);
+ access = bmap_to_share_mode(stp->st_access_bmap);
+ deny = bmap_to_share_mode(stp->st_deny_bmap);
if ((access & open->op_share_deny) || (deny & open->op_share_access))
- return 0;
- return 1;
+ return false;
+ return true;
+}
+
+/* set share access for a given stateid */
+static inline void
+set_access(u32 access, struct nfs4_ol_stateid *stp)
+{
+ __set_bit(access, &stp->st_access_bmap);
+}
+
+/* clear share access for a given stateid */
+static inline void
+clear_access(u32 access, struct nfs4_ol_stateid *stp)
+{
+ __clear_bit(access, &stp->st_access_bmap);
+}
+
+/* test whether a given stateid has access */
+static inline bool
+test_access(u32 access, struct nfs4_ol_stateid *stp)
+{
+ return test_bit(access, &stp->st_access_bmap);
+}
+
+/* set share deny for a given stateid */
+static inline void
+set_deny(u32 access, struct nfs4_ol_stateid *stp)
+{
+ __set_bit(access, &stp->st_deny_bmap);
+}
+
+/* clear share deny for a given stateid */
+static inline void
+clear_deny(u32 access, struct nfs4_ol_stateid *stp)
+{
+ __clear_bit(access, &stp->st_deny_bmap);
+}
+
+/* test whether a given stateid is denying specific access */
+static inline bool
+test_deny(u32 access, struct nfs4_ol_stateid *stp)
+{
+ return test_bit(access, &stp->st_deny_bmap);
}
static int nfs4_access_to_omode(u32 access)
BUG();
}
+/* release all access and file references for a given stateid */
+static void
+release_all_access(struct nfs4_ol_stateid *stp)
+{
+ int i;
+
+ for (i = 1; i < 4; i++) {
+ if (test_access(i, stp))
+ nfs4_file_put_access(stp->st_file,
+ nfs4_access_to_omode(i));
+ clear_access(i, stp);
+ }
+}
+
static void unhash_generic_stateid(struct nfs4_ol_stateid *stp)
{
list_del(&stp->st_perfile);
static void close_generic_stateid(struct nfs4_ol_stateid *stp)
{
- int i;
-
- if (stp->st_access_bmap) {
- for (i = 1; i < 4; i++) {
- if (test_bit(i, &stp->st_access_bmap))
- nfs4_file_put_access(stp->st_file,
- nfs4_access_to_omode(i));
- __clear_bit(i, &stp->st_access_bmap);
- }
- }
+ release_all_access(stp);
put_nfs4_file(stp->st_file);
stp->st_file = NULL;
}
struct nfsd4_session *new;
struct nfsd4_channel_attrs *fchan = &cses->fore_channel;
int numslots, slotsize;
- int status;
+ __be32 status;
int idx;
/*
renew_client_locked(struct nfs4_client *clp)
{
if (is_client_expired(clp)) {
- dprintk("%s: client (clientid %08x/%08x) already expired\n",
+ WARN_ON(1);
+ printk("%s: client (clientid %08x/%08x) already expired\n",
__func__,
clp->cl_clientid.cl_boot,
clp->cl_clientid.cl_id);
list_del(&ses->se_perclnt);
nfsd4_put_session_locked(ses);
}
- if (clp->cl_cred.cr_group_info)
- put_group_info(clp->cl_cred.cr_group_info);
- kfree(clp->cl_principal);
+ free_svc_cred(&clp->cl_cred);
kfree(clp->cl_name.data);
kfree(clp);
}
target->cl_clientid.cl_id = source->cl_clientid.cl_id;
}
-static void copy_cred(struct svc_cred *target, struct svc_cred *source)
+static int copy_cred(struct svc_cred *target, struct svc_cred *source)
{
+ if (source->cr_principal) {
+ target->cr_principal =
+ kstrdup(source->cr_principal, GFP_KERNEL);
+ if (target->cr_principal == NULL)
+ return -ENOMEM;
+ } else
+ target->cr_principal = NULL;
+ target->cr_flavor = source->cr_flavor;
target->cr_uid = source->cr_uid;
target->cr_gid = source->cr_gid;
target->cr_group_info = source->cr_group_info;
get_group_info(target->cr_group_info);
+ return 0;
}
static int same_name(const char *n1, const char *n2)
return (cl1->cl_boot == cl2->cl_boot) && (cl1->cl_id == cl2->cl_id);
}
-/* XXX what about NGROUP */
+static bool groups_equal(struct group_info *g1, struct group_info *g2)
+{
+ int i;
+
+ if (g1->ngroups != g2->ngroups)
+ return false;
+ for (i=0; i<g1->ngroups; i++)
+ if (GROUP_AT(g1, i) != GROUP_AT(g2, i))
+ return false;
+ return true;
+}
+
static int
same_creds(struct svc_cred *cr1, struct svc_cred *cr2)
{
- return cr1->cr_uid == cr2->cr_uid;
+ if ((cr1->cr_flavor != cr2->cr_flavor)
+ || (cr1->cr_uid != cr2->cr_uid)
+ || (cr1->cr_gid != cr2->cr_gid)
+ || !groups_equal(cr1->cr_group_info, cr2->cr_group_info))
+ return false;
+ if (cr1->cr_principal == cr2->cr_principal)
+ return true;
+ if (!cr1->cr_principal || !cr2->cr_principal)
+ return false;
+ return 0 == strcmp(cr1->cr_principal, cr1->cr_principal);
}
static void gen_clid(struct nfs4_client *clp)
{
struct nfs4_client *clp;
struct sockaddr *sa = svc_addr(rqstp);
- char *princ;
+ int ret;
clp = alloc_client(name);
if (clp == NULL)
return NULL;
INIT_LIST_HEAD(&clp->cl_sessions);
-
- princ = svc_gss_principal(rqstp);
- if (princ) {
- clp->cl_principal = kstrdup(princ, GFP_KERNEL);
- if (clp->cl_principal == NULL) {
- spin_lock(&client_lock);
- free_client(clp);
- spin_unlock(&client_lock);
- return NULL;
- }
+ ret = copy_cred(&clp->cl_cred, &rqstp->rq_cred);
+ if (ret) {
+ spin_lock(&client_lock);
+ free_client(clp);
+ spin_unlock(&client_lock);
+ return NULL;
}
-
idr_init(&clp->cl_stateids);
memcpy(clp->cl_recdir, recdir, HEXDIR_LEN);
atomic_set(&clp->cl_refcount, 0);
rpc_init_wait_queue(&clp->cl_cb_waitq, "Backchannel slot table");
copy_verf(clp, verf);
rpc_copy_addr((struct sockaddr *) &clp->cl_addr, sa);
- clp->cl_flavor = rqstp->rq_flavor;
- copy_cred(&clp->cl_cred, &rqstp->rq_cred);
gen_confirm(clp);
clp->cl_cb_session = NULL;
return clp;
clid->flags = new->cl_exchange_flags;
}
+static bool client_has_state(struct nfs4_client *clp)
+{
+ /*
+ * Note clp->cl_openowners check isn't quite right: there's no
+ * need to count owners without stateid's.
+ *
+ * Also note we should probably be using this in 4.0 case too.
+ */
+ return !list_empty(&clp->cl_openowners)
+ || !list_empty(&clp->cl_delegations)
+ || !list_empty(&clp->cl_sessions);
+}
+
__be32
nfsd4_exchange_id(struct svc_rqst *rqstp,
struct nfsd4_compound_state *cstate,
struct nfsd4_exchange_id *exid)
{
struct nfs4_client *unconf, *conf, *new;
- int status;
+ __be32 status;
unsigned int strhashval;
char dname[HEXDIR_LEN];
char addr_str[INET6_ADDRSTRLEN];
nfs4_verifier verf = exid->verifier;
struct sockaddr *sa = svc_addr(rqstp);
+ bool update = exid->flags & EXCHGID4_FLAG_UPD_CONFIRMED_REC_A;
rpc_ntop(sa, addr_str, sizeof(addr_str));
dprintk("%s rqstp=%p exid=%p clname.len=%u clname.data=%p "
status = nfs4_make_rec_clidname(dname, &exid->clname);
if (status)
- goto error;
+ return status;
strhashval = clientstr_hashval(dname);
+ /* Cases below refer to rfc 5661 section 18.35.4: */
nfs4_lock_state();
- status = nfs_ok;
-
conf = find_confirmed_client_by_str(dname, strhashval);
if (conf) {
- if (!clp_used_exchangeid(conf)) {
- status = nfserr_clid_inuse; /* XXX: ? */
- goto out;
- }
- if (!same_verf(&verf, &conf->cl_verifier)) {
- /* 18.35.4 case 8 */
- if (exid->flags & EXCHGID4_FLAG_UPD_CONFIRMED_REC_A) {
+ bool creds_match = same_creds(&conf->cl_cred, &rqstp->rq_cred);
+ bool verfs_match = same_verf(&verf, &conf->cl_verifier);
+
+ if (update) {
+ if (!clp_used_exchangeid(conf)) { /* buggy client */
+ status = nfserr_inval;
+ goto out;
+ }
+ if (!creds_match) { /* case 9 */
+ status = nfserr_perm;
+ goto out;
+ }
+ if (!verfs_match) { /* case 8 */
status = nfserr_not_same;
goto out;
}
- /* Client reboot: destroy old state */
- expire_client(conf);
- goto out_new;
+ /* case 6 */
+ exid->flags |= EXCHGID4_FLAG_CONFIRMED_R;
+ new = conf;
+ goto out_copy;
}
- if (!same_creds(&conf->cl_cred, &rqstp->rq_cred)) {
- /* 18.35.4 case 9 */
- if (exid->flags & EXCHGID4_FLAG_UPD_CONFIRMED_REC_A) {
- status = nfserr_perm;
+ if (!creds_match) { /* case 3 */
+ if (client_has_state(conf)) {
+ status = nfserr_clid_inuse;
goto out;
}
expire_client(conf);
goto out_new;
}
- /*
- * Set bit when the owner id and verifier map to an already
- * confirmed client id (18.35.3).
- */
- exid->flags |= EXCHGID4_FLAG_CONFIRMED_R;
-
- /*
- * Falling into 18.35.4 case 2, possible router replay.
- * Leave confirmed record intact and return same result.
- */
- copy_verf(conf, &verf);
- new = conf;
- goto out_copy;
+ if (verfs_match) { /* case 2 */
+ conf->cl_exchange_flags |= EXCHGID4_FLAG_CONFIRMED_R;
+ new = conf;
+ goto out_copy;
+ }
+ /* case 5, client reboot */
+ goto out_new;
}
- /* 18.35.4 case 7 */
- if (exid->flags & EXCHGID4_FLAG_UPD_CONFIRMED_REC_A) {
+ if (update) { /* case 7 */
status = nfserr_noent;
goto out;
}
unconf = find_unconfirmed_client_by_str(dname, strhashval);
- if (unconf) {
- /*
- * Possible retry or client restart. Per 18.35.4 case 4,
- * a new unconfirmed record should be generated regardless
- * of whether any properties have changed.
- */
+ if (unconf) /* case 4, possible retry or client restart */
expire_client(unconf);
- }
+ /* case 1 (normal case) */
out_new:
- /* Normal case */
new = create_client(exid->clname, dname, rqstp, &verf);
if (new == NULL) {
status = nfserr_jukebox;
exid->clientid.cl_boot = new->cl_clientid.cl_boot;
exid->clientid.cl_id = new->cl_clientid.cl_id;
- exid->seqid = 1;
+ exid->seqid = new->cl_cs_slot.sl_seqid + 1;
nfsd4_set_ex_flags(new, exid);
dprintk("nfsd4_exchange_id seqid %d flags %x\n",
out:
nfs4_unlock_state();
-error:
- dprintk("nfsd4_exchange_id returns %d\n", ntohl(status));
return status;
}
-static int
+static __be32
check_slot_seqid(u32 seqid, u32 slot_seqid, int slot_inuse)
{
dprintk("%s enter. seqid %d slot_seqid %d\n", __func__, seqid,
*/
static void
nfsd4_cache_create_session(struct nfsd4_create_session *cr_ses,
- struct nfsd4_clid_slot *slot, int nfserr)
+ struct nfsd4_clid_slot *slot, __be32 nfserr)
{
slot->sl_status = nfserr;
memcpy(&slot->sl_cr_ses, cr_ses, sizeof(*cr_ses));
/* seqid, slotID, slotID, slotID, status */ \
5 ) * sizeof(__be32))
-static __be32 check_forechannel_attrs(struct nfsd4_channel_attrs fchannel)
+static bool check_forechannel_attrs(struct nfsd4_channel_attrs fchannel)
{
return fchannel.maxreq_sz < NFSD_MIN_REQ_HDR_SEQ_SZ
|| fchannel.maxresp_sz < NFSD_MIN_RESP_HDR_SEQ_SZ;
struct nfsd4_session *new;
struct nfsd4_clid_slot *cs_slot = NULL;
bool confirm_me = false;
- int status = 0;
+ __be32 status = 0;
if (cr_ses->flags & ~SESSION4_FLAG_MASK_A)
return nfserr_inval;
cs_slot = &conf->cl_cs_slot;
status = check_slot_seqid(cr_ses->seqid, cs_slot->sl_seqid, 0);
if (status == nfserr_replay_cache) {
- dprintk("Got a create_session replay! seqid= %d\n",
- cs_slot->sl_seqid);
- /* Return the cached reply status */
status = nfsd4_replay_create_session(cr_ses, cs_slot);
goto out;
} else if (cr_ses->seqid != cs_slot->sl_seqid + 1) {
status = nfserr_seq_misordered;
- dprintk("Sequence misordered!\n");
- dprintk("Expected seqid= %d but got seqid= %d\n",
- cs_slot->sl_seqid, cr_ses->seqid);
goto out;
}
} else if (unconf) {
status = nfserr_clid_inuse;
goto out;
}
-
cs_slot = &unconf->cl_cs_slot;
status = check_slot_seqid(cr_ses->seqid, cs_slot->sl_seqid, 0);
if (status) {
status = nfserr_seq_misordered;
goto out;
}
-
confirm_me = true;
conf = unconf;
} else {
/* cache solo and embedded create sessions under the state lock */
nfsd4_cache_create_session(cr_ses, cs_slot, status);
- if (confirm_me)
+ if (confirm_me) {
+ unsigned int hash = clientstr_hashval(unconf->cl_recdir);
+ struct nfs4_client *old =
+ find_confirmed_client_by_str(conf->cl_recdir, hash);
+ if (old)
+ expire_client(old);
move_to_confirmed(conf);
+ }
out:
nfs4_unlock_state();
dprintk("%s returns %d\n", __func__, ntohl(status));
struct nfsd4_destroy_session *sessionid)
{
struct nfsd4_session *ses;
- u32 status = nfserr_badsession;
+ __be32 status = nfserr_badsession;
/* Notes:
* - The confirmed nfs4_client->cl_sessionid holds destroyed sessinid
struct nfsd4_session *session;
struct nfsd4_slot *slot;
struct nfsd4_conn *conn;
- int status;
+ __be32 status;
if (resp->opcnt != 1)
return nfserr_sequence_pos;
return status;
}
-static inline bool has_resources(struct nfs4_client *clp)
-{
- return !list_empty(&clp->cl_openowners)
- || !list_empty(&clp->cl_delegations)
- || !list_empty(&clp->cl_sessions);
-}
-
__be32
nfsd4_destroy_clientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_destroy_clientid *dc)
{
struct nfs4_client *conf, *unconf, *clp;
- int status = 0;
+ __be32 status = 0;
nfs4_lock_state();
unconf = find_unconfirmed_client(&dc->clientid);
if (conf) {
clp = conf;
- if (!is_client_expired(conf) && has_resources(conf)) {
+ if (!is_client_expired(conf) && client_has_state(conf)) {
status = nfserr_clientid_busy;
goto out;
}
__be32
nfsd4_reclaim_complete(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_reclaim_complete *rc)
{
- int status = 0;
+ __be32 status = 0;
if (rc->rca_one_fs) {
if (!cstate->current_fh.fh_dentry)
if (status)
return status;
- /*
- * XXX The Duplicate Request Cache (DRC) has been checked (??)
- * We get here on a DRC miss.
- */
-
strhashval = clientstr_hashval(dname);
+ /* Cases below refer to rfc 3530 section 14.2.33: */
nfs4_lock_state();
conf = find_confirmed_client_by_str(dname, strhashval);
if (conf) {
- /* RFC 3530 14.2.33 CASE 0: */
+ /* case 0: */
status = nfserr_clid_inuse;
if (clp_used_exchangeid(conf))
goto out;
goto out;
}
}
- /*
- * section 14.2.33 of RFC 3530 (under the heading "IMPLEMENTATION")
- * has a description of SETCLIENTID request processing consisting
- * of 5 bullet points, labeled as CASE0 - CASE4 below.
- */
unconf = find_unconfirmed_client_by_str(dname, strhashval);
+ if (unconf)
+ expire_client(unconf);
status = nfserr_jukebox;
- if (!conf) {
- /*
- * RFC 3530 14.2.33 CASE 4:
- * placed first, because it is the normal case
- */
- if (unconf)
- expire_client(unconf);
- new = create_client(clname, dname, rqstp, &clverifier);
- if (new == NULL)
- goto out;
- gen_clid(new);
- } else if (same_verf(&conf->cl_verifier, &clverifier)) {
- /*
- * RFC 3530 14.2.33 CASE 1:
- * probable callback update
- */
- if (unconf) {
- /* Note this is removing unconfirmed {*x***},
- * which is stronger than RFC recommended {vxc**}.
- * This has the advantage that there is at most
- * one {*x***} in either list at any time.
- */
- expire_client(unconf);
- }
- new = create_client(clname, dname, rqstp, &clverifier);
- if (new == NULL)
- goto out;
+ new = create_client(clname, dname, rqstp, &clverifier);
+ if (new == NULL)
+ goto out;
+ if (conf && same_verf(&conf->cl_verifier, &clverifier))
+ /* case 1: probable callback update */
copy_clid(new, conf);
- } else if (!unconf) {
- /*
- * RFC 3530 14.2.33 CASE 2:
- * probable client reboot; state will be removed if
- * confirmed.
- */
- new = create_client(clname, dname, rqstp, &clverifier);
- if (new == NULL)
- goto out;
- gen_clid(new);
- } else {
- /*
- * RFC 3530 14.2.33 CASE 3:
- * probable client reboot; state will be removed if
- * confirmed.
- */
- expire_client(unconf);
- new = create_client(clname, dname, rqstp, &clverifier);
- if (new == NULL)
- goto out;
+ else /* case 4 (new client) or cases 2, 3 (client reboot): */
gen_clid(new);
- }
/*
* XXX: we should probably set this at creation time, and check
* for consistent minorversion use throughout:
}
-/*
- * Section 14.2.34 of RFC 3530 (under the heading "IMPLEMENTATION") has
- * a description of SETCLIENTID_CONFIRM request processing consisting of 4
- * bullets, labeled as CASE1 - CASE4 below.
- */
__be32
nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
struct nfsd4_compound_state *cstate,
struct nfsd4_setclientid_confirm *setclientid_confirm)
{
- struct sockaddr *sa = svc_addr(rqstp);
struct nfs4_client *conf, *unconf;
nfs4_verifier confirm = setclientid_confirm->sc_confirm;
clientid_t * clid = &setclientid_confirm->sc_clientid;
if (STALE_CLIENTID(clid))
return nfserr_stale_clientid;
- /*
- * XXX The Duplicate Request Cache (DRC) has been checked (??)
- * We get here on a DRC miss.
- */
-
nfs4_lock_state();
conf = find_confirmed_client(clid);
unconf = find_unconfirmed_client(clid);
-
- status = nfserr_clid_inuse;
- if (conf && !rpc_cmp_addr((struct sockaddr *) &conf->cl_addr, sa))
- goto out;
- if (unconf && !rpc_cmp_addr((struct sockaddr *) &unconf->cl_addr, sa))
- goto out;
-
/*
- * section 14.2.34 of RFC 3530 has a description of
- * SETCLIENTID_CONFIRM request processing consisting
- * of 4 bullet points, labeled as CASE1 - CASE4 below.
+ * We try hard to give out unique clientid's, so if we get an
+ * attempt to confirm the same clientid with a different cred,
+ * there's a bug somewhere. Let's charitably assume it's our
+ * bug.
*/
- if (conf && unconf && same_verf(&confirm, &unconf->cl_confirm)) {
- /*
- * RFC 3530 14.2.34 CASE 1:
- * callback update
- */
- if (!same_creds(&conf->cl_cred, &unconf->cl_cred))
- status = nfserr_clid_inuse;
- else {
- nfsd4_change_callback(conf, &unconf->cl_cb_conn);
- nfsd4_probe_callback(conf);
- expire_client(unconf);
+ status = nfserr_serverfault;
+ if (unconf && !same_creds(&unconf->cl_cred, &rqstp->rq_cred))
+ goto out;
+ if (conf && !same_creds(&conf->cl_cred, &rqstp->rq_cred))
+ goto out;
+ /* cases below refer to rfc 3530 section 14.2.34: */
+ if (!unconf || !same_verf(&confirm, &unconf->cl_confirm)) {
+ if (conf && !unconf) /* case 2: probable retransmit */
status = nfs_ok;
+ else /* case 4: client hasn't noticed we rebooted yet? */
+ status = nfserr_stale_clientid;
+ goto out;
+ }
+ status = nfs_ok;
+ if (conf) { /* case 1: callback update */
+ nfsd4_change_callback(conf, &unconf->cl_cb_conn);
+ nfsd4_probe_callback(conf);
+ expire_client(unconf);
+ } else { /* case 3: normal case; new or rebooted client */
+ unsigned int hash = clientstr_hashval(unconf->cl_recdir);
+ conf = find_confirmed_client_by_str(unconf->cl_recdir, hash);
+ if (conf) {
+ nfsd4_client_record_remove(conf);
+ expire_client(conf);
}
- } else if (conf && !unconf) {
- /*
- * RFC 3530 14.2.34 CASE 2:
- * probable retransmitted request; play it safe and
- * do nothing.
- */
- if (!same_creds(&conf->cl_cred, &rqstp->rq_cred))
- status = nfserr_clid_inuse;
- else
- status = nfs_ok;
- } else if (!conf && unconf
- && same_verf(&unconf->cl_confirm, &confirm)) {
- /*
- * RFC 3530 14.2.34 CASE 3:
- * Normal case; new or rebooted client:
- */
- if (!same_creds(&unconf->cl_cred, &rqstp->rq_cred)) {
- status = nfserr_clid_inuse;
- } else {
- unsigned int hash =
- clientstr_hashval(unconf->cl_recdir);
- conf = find_confirmed_client_by_str(unconf->cl_recdir,
- hash);
- if (conf) {
- nfsd4_client_record_remove(conf);
- expire_client(conf);
- }
- move_to_confirmed(unconf);
- conf = unconf;
- nfsd4_probe_callback(conf);
- status = nfs_ok;
- }
- } else if ((!conf || (conf && !same_verf(&conf->cl_confirm, &confirm)))
- && (!unconf || (unconf && !same_verf(&unconf->cl_confirm,
- &confirm)))) {
- /*
- * RFC 3530 14.2.34 CASE 4:
- * Client probably hasn't noticed that we rebooted yet.
- */
- status = nfserr_stale_clientid;
- } else {
- /* check that we have hit one of the cases...*/
- status = nfserr_clid_inuse;
+ move_to_confirmed(unconf);
+ nfsd4_probe_callback(unconf);
}
out:
nfs4_unlock_state();
stp->st_file = fp;
stp->st_access_bmap = 0;
stp->st_deny_bmap = 0;
- __set_bit(open->op_share_access, &stp->st_access_bmap);
- __set_bit(open->op_share_deny, &stp->st_deny_bmap);
+ set_access(open->op_share_access, stp);
+ set_deny(open->op_share_deny, stp);
stp->st_openstp = NULL;
}
ret = nfserr_locked;
/* Search for conflicting share reservations */
list_for_each_entry(stp, &fp->fi_stateids, st_perfile) {
- if (test_bit(deny_type, &stp->st_deny_bmap) ||
- test_bit(NFS4_SHARE_DENY_BOTH, &stp->st_deny_bmap))
+ if (test_deny(deny_type, stp) ||
+ test_deny(NFS4_SHARE_DENY_BOTH, stp))
goto out;
}
ret = nfs_ok;
bool new_access;
__be32 status;
- new_access = !test_bit(op_share_access, &stp->st_access_bmap);
+ new_access = !test_access(op_share_access, stp);
if (new_access) {
status = nfs4_get_vfs_file(rqstp, fp, cur_fh, open);
if (status)
return status;
}
/* remember the open */
- __set_bit(op_share_access, &stp->st_access_bmap);
- __set_bit(open->op_share_deny, &stp->st_deny_bmap);
+ set_access(op_share_access, stp);
+ set_deny(open->op_share_deny, stp);
return nfs_ok;
}
static struct lock_manager nfsd4_manager = {
};
+static bool grace_ended;
+
static void
nfsd4_end_grace(void)
{
+ /* do nothing if grace period already ended */
+ if (grace_ended)
+ return;
+
dprintk("NFSD: end of grace period\n");
+ grace_ended = true;
nfsd4_record_grace_done(&init_net, boot_time);
locks_end_grace(&nfsd4_manager);
/*
nfs4_lock_state();
dprintk("NFSD: laundromat service - starting\n");
- if (locks_in_grace())
- nfsd4_end_grace();
+ nfsd4_end_grace();
INIT_LIST_HEAD(&reaplist);
spin_lock(&client_lock);
list_for_each_safe(pos, next, &client_lru) {
}
static inline int
-access_permit_read(unsigned long access_bmap)
+access_permit_read(struct nfs4_ol_stateid *stp)
{
- return test_bit(NFS4_SHARE_ACCESS_READ, &access_bmap) ||
- test_bit(NFS4_SHARE_ACCESS_BOTH, &access_bmap) ||
- test_bit(NFS4_SHARE_ACCESS_WRITE, &access_bmap);
+ return test_access(NFS4_SHARE_ACCESS_READ, stp) ||
+ test_access(NFS4_SHARE_ACCESS_BOTH, stp) ||
+ test_access(NFS4_SHARE_ACCESS_WRITE, stp);
}
static inline int
-access_permit_write(unsigned long access_bmap)
+access_permit_write(struct nfs4_ol_stateid *stp)
{
- return test_bit(NFS4_SHARE_ACCESS_WRITE, &access_bmap) ||
- test_bit(NFS4_SHARE_ACCESS_BOTH, &access_bmap);
+ return test_access(NFS4_SHARE_ACCESS_WRITE, stp) ||
+ test_access(NFS4_SHARE_ACCESS_BOTH, stp);
}
static
/* For lock stateid's, we test the parent open, not the lock: */
if (stp->st_openstp)
stp = stp->st_openstp;
- if ((flags & WR_STATE) && (!access_permit_write(stp->st_access_bmap)))
+ if ((flags & WR_STATE) && !access_permit_write(stp))
goto out;
- if ((flags & RD_STATE) && (!access_permit_read(stp->st_access_bmap)))
+ if ((flags & RD_STATE) && !access_permit_read(stp))
goto out;
status = nfs_ok;
out:
return (s32)a->si_generation - (s32)b->si_generation > 0;
}
-static int check_stateid_generation(stateid_t *in, stateid_t *ref, bool has_session)
+static __be32 check_stateid_generation(stateid_t *in, stateid_t *ref, bool has_session)
{
/*
* When sessions are used the stateid generation number is ignored
static inline void nfs4_stateid_downgrade_bit(struct nfs4_ol_stateid *stp, u32 access)
{
- if (!test_bit(access, &stp->st_access_bmap))
+ if (!test_access(access, stp))
return;
nfs4_file_put_access(stp->st_file, nfs4_access_to_omode(access));
- __clear_bit(access, &stp->st_access_bmap);
+ clear_access(access, stp);
}
static inline void nfs4_stateid_downgrade(struct nfs4_ol_stateid *stp, u32 to_access)
}
static void
-reset_union_bmap_deny(unsigned long deny, unsigned long *bmap)
+reset_union_bmap_deny(unsigned long deny, struct nfs4_ol_stateid *stp)
{
int i;
for (i = 0; i < 4; i++) {
if ((i & deny) != i)
- __clear_bit(i, bmap);
+ clear_deny(i, stp);
}
}
if (status)
goto out;
status = nfserr_inval;
- if (!test_bit(od->od_share_access, &stp->st_access_bmap)) {
- dprintk("NFSD:access not a subset current bitmap: 0x%lx, input access=%08x\n",
+ if (!test_access(od->od_share_access, stp)) {
+ dprintk("NFSD: access not a subset current bitmap: 0x%lx, input access=%08x\n",
stp->st_access_bmap, od->od_share_access);
goto out;
}
- if (!test_bit(od->od_share_deny, &stp->st_deny_bmap)) {
+ if (!test_deny(od->od_share_deny, stp)) {
dprintk("NFSD:deny not a subset current bitmap: 0x%lx, input deny=%08x\n",
stp->st_deny_bmap, od->od_share_deny);
goto out;
}
nfs4_stateid_downgrade(stp, od->od_share_access);
- reset_union_bmap_deny(od->od_share_deny, &stp->st_deny_bmap);
+ reset_union_bmap_deny(od->od_share_deny, stp);
update_stateid(&stp->st_stid.sc_stateid);
memcpy(&od->od_stateid, &stp->st_stid.sc_stateid, sizeof(stateid_t));
struct nfs4_file *fp = lock_stp->st_file;
int oflag = nfs4_access_to_omode(access);
- if (test_bit(access, &lock_stp->st_access_bmap))
+ if (test_access(access, lock_stp))
return;
nfs4_file_get_access(fp, oflag);
- __set_bit(access, &lock_stp->st_access_bmap);
+ set_access(access, lock_stp);
}
-__be32 lookup_or_create_lock_state(struct nfsd4_compound_state *cstate, struct nfs4_ol_stateid *ost, struct nfsd4_lock *lock, struct nfs4_ol_stateid **lst, bool *new)
+static __be32 lookup_or_create_lock_state(struct nfsd4_compound_state *cstate, struct nfs4_ol_stateid *ost, struct nfsd4_lock *lock, struct nfs4_ol_stateid **lst, bool *new)
{
struct nfs4_file *fi = ost->st_file;
struct nfs4_openowner *oo = openowner(ost->st_stateowner);
struct nfs4_openowner *open_sop = NULL;
struct nfs4_lockowner *lock_sop = NULL;
struct nfs4_ol_stateid *lock_stp;
- struct nfs4_file *fp;
struct file *filp = NULL;
struct file_lock file_lock;
struct file_lock conflock;
goto out;
}
lock_sop = lockowner(lock_stp->st_stateowner);
- fp = lock_stp->st_file;
lkflg = setlkflg(lock->lk_type);
status = nfs4_check_openmode(lock_stp, lkflg);
nfsd4_client_tracking_init(&init_net);
boot_time = get_seconds();
locks_start_grace(&nfsd4_manager);
+ grace_ended = false;
printk(KERN_INFO "NFSD: starting %ld-second grace period\n",
nfsd4_grace);
ret = set_callback_cred();
static void write32(__be32 **p, u32 n)
{
- *(*p)++ = n;
+ *(*p)++ = htonl(n);
}
static void write64(__be32 **p, u64 n)
{
- write32(p, (u32)(n >> 32));
+ write32(p, (n >> 32));
write32(p, (u32)n);
}
}
/* Encode as an array of strings the string given with components
- * separated @sep.
+ * separated @sep, escaped with esc_enter and esc_exit.
*/
-static __be32 nfsd4_encode_components(char sep, char *components,
- __be32 **pp, int *buflen)
+static __be32 nfsd4_encode_components_esc(char sep, char *components,
+ __be32 **pp, int *buflen,
+ char esc_enter, char esc_exit)
{
__be32 *p = *pp;
__be32 *countp = p;
int strlen, count=0;
- char *str, *end;
+ char *str, *end, *next;
dprintk("nfsd4_encode_components(%s)\n", components);
if ((*buflen -= 4) < 0)
WRITE32(0); /* We will fill this in with @count later */
end = str = components;
while (*end) {
- for (; *end && (*end != sep); end++)
- ; /* Point to end of component */
+ bool found_esc = false;
+
+ /* try to parse as esc_start, ..., esc_end, sep */
+ if (*str == esc_enter) {
+ for (; *end && (*end != esc_exit); end++)
+ /* find esc_exit or end of string */;
+ next = end + 1;
+ if (*end && (!*next || *next == sep)) {
+ str++;
+ found_esc = true;
+ }
+ }
+
+ if (!found_esc)
+ for (; *end && (*end != sep); end++)
+ /* find sep or end of string */;
+
strlen = end - str;
if (strlen) {
if ((*buflen -= ((XDR_QUADLEN(strlen) << 2) + 4)) < 0)
return 0;
}
+/* Encode as an array of strings the string given with components
+ * separated @sep.
+ */
+static __be32 nfsd4_encode_components(char sep, char *components,
+ __be32 **pp, int *buflen)
+{
+ return nfsd4_encode_components_esc(sep, components, pp, buflen, 0, 0);
+}
+
/*
* encode a location element of a fs_locations structure
*/
__be32 status;
__be32 *p = *pp;
- status = nfsd4_encode_components(':', location->hosts, &p, buflen);
+ status = nfsd4_encode_components_esc(':', location->hosts, &p, buflen,
+ '[', ']');
if (status)
return status;
status = nfsd4_encode_components('/', location->path, &p, buflen);
}
static __be32
-nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, int nfserr,
+nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, __be32 nfserr,
struct nfsd4_exchange_id *exid)
{
__be32 *p;
}
static __be32
-nfsd4_encode_create_session(struct nfsd4_compoundres *resp, int nfserr,
+nfsd4_encode_create_session(struct nfsd4_compoundres *resp, __be32 nfserr,
struct nfsd4_create_session *sess)
{
__be32 *p;
}
static __be32
-nfsd4_encode_destroy_session(struct nfsd4_compoundres *resp, int nfserr,
+nfsd4_encode_destroy_session(struct nfsd4_compoundres *resp, __be32 nfserr,
struct nfsd4_destroy_session *destroy_session)
{
return nfserr;
}
static __be32
-nfsd4_encode_free_stateid(struct nfsd4_compoundres *resp, int nfserr,
+nfsd4_encode_free_stateid(struct nfsd4_compoundres *resp, __be32 nfserr,
struct nfsd4_free_stateid *free_stateid)
{
__be32 *p;
return nfserr;
RESERVE_SPACE(4);
- WRITE32(nfserr);
+ *p++ = nfserr;
ADJUST_ARGS();
return nfserr;
}
static __be32
-nfsd4_encode_sequence(struct nfsd4_compoundres *resp, int nfserr,
+nfsd4_encode_sequence(struct nfsd4_compoundres *resp, __be32 nfserr,
struct nfsd4_sequence *seq)
{
__be32 *p;
return 0;
}
-__be32
-nfsd4_encode_test_stateid(struct nfsd4_compoundres *resp, int nfserr,
+static __be32
+nfsd4_encode_test_stateid(struct nfsd4_compoundres *resp, __be32 nfserr,
struct nfsd4_test_stateid *test_stateid)
{
struct nfsd4_test_stateid_id *stateid, *next;
* Our se_fmaxresp_cached will always be a multiple of PAGE_SIZE, and so
* will be at least a page and will therefore hold the xdr_buf head.
*/
-int nfsd4_check_resp_size(struct nfsd4_compoundres *resp, u32 pad)
+__be32 nfsd4_check_resp_size(struct nfsd4_compoundres *resp, u32 pad)
{
struct xdr_buf *xb = &resp->rqstp->rq_res;
struct nfsd4_session *session = NULL;
static int exports_open(struct inode *inode, struct file *file)
{
- return seq_open(file, &nfs_exports_op);
+ int err;
+ struct seq_file *seq;
+ struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id);
+
+ err = seq_open(file, &nfs_exports_op);
+ if (err)
+ return err;
+
+ seq = file->private_data;
+ seq->private = nn->svc_export_cache;
+ return 0;
}
static const struct file_operations exports_operations = {
if (!dom)
return -ENOMEM;
- len = exp_rootfh(dom, path, &fh, maxsize);
+ len = exp_rootfh(&init_net, dom, path, &fh, maxsize);
auth_domain_put(dom);
if (len)
return len;
{
char *mesg = buf;
int fd, err;
+ struct net *net = &init_net;
err = get_int(&mesg, &fd);
if (err != 0 || fd < 0)
err = svc_addsock(nfsd_serv, fd, buf, SIMPLE_TRANSACTION_LIMIT);
if (err < 0) {
+ if (nfsd_serv->sv_nrthreads == 1)
+ svc_shutdown_net(nfsd_serv, net);
svc_destroy(nfsd_serv);
return err;
}
char transport[16];
struct svc_xprt *xprt;
int port, err;
+ struct net *net = &init_net;
if (sscanf(buf, "%15s %4u", transport, &port) != 2)
return -EINVAL;
if (err != 0)
return err;
- err = svc_create_xprt(nfsd_serv, transport, &init_net,
+ err = svc_create_xprt(nfsd_serv, transport, net,
PF_INET, port, SVC_SOCK_ANONYMOUS);
if (err < 0)
goto out_err;
- err = svc_create_xprt(nfsd_serv, transport, &init_net,
+ err = svc_create_xprt(nfsd_serv, transport, net,
PF_INET6, port, SVC_SOCK_ANONYMOUS);
if (err < 0 && err != -EAFNOSUPPORT)
goto out_close;
nfsd_serv->sv_nrthreads--;
return 0;
out_close:
- xprt = svc_find_xprt(nfsd_serv, transport, &init_net, PF_INET, port);
+ xprt = svc_find_xprt(nfsd_serv, transport, net, PF_INET, port);
if (xprt != NULL) {
svc_close_xprt(xprt);
svc_xprt_put(xprt);
}
out_err:
+ if (nfsd_serv->sv_nrthreads == 1)
+ svc_shutdown_net(nfsd_serv, net);
svc_destroy(nfsd_serv);
return err;
}
#endif
int nfsd_net_id;
+
+static __net_init int nfsd_init_net(struct net *net)
+{
+ int retval;
+
+ retval = nfsd_export_init(net);
+ if (retval)
+ goto out_export_error;
+ retval = nfsd_idmap_init(net);
+ if (retval)
+ goto out_idmap_error;
+ return 0;
+
+out_idmap_error:
+ nfsd_export_shutdown(net);
+out_export_error:
+ return retval;
+}
+
+static __net_exit void nfsd_exit_net(struct net *net)
+{
+ nfsd_idmap_shutdown(net);
+ nfsd_export_shutdown(net);
+}
+
static struct pernet_operations nfsd_net_ops = {
+ .init = nfsd_init_net,
+ .exit = nfsd_exit_net,
.id = &nfsd_net_id,
.size = sizeof(struct nfsd_net),
};
retval = nfsd_reply_cache_init();
if (retval)
goto out_free_stat;
- retval = nfsd_export_init();
- if (retval)
- goto out_free_cache;
nfsd_lockd_init(); /* lockd->nfsd callbacks */
- retval = nfsd_idmap_init();
- if (retval)
- goto out_free_lockd;
retval = create_proc_exports_entry();
if (retval)
- goto out_free_idmap;
+ goto out_free_lockd;
retval = register_filesystem(&nfsd_fs_type);
if (retval)
goto out_free_all;
out_free_all:
remove_proc_entry("fs/nfs/exports", NULL);
remove_proc_entry("fs/nfs", NULL);
-out_free_idmap:
- nfsd_idmap_shutdown();
out_free_lockd:
nfsd_lockd_shutdown();
- nfsd_export_shutdown();
-out_free_cache:
nfsd_reply_cache_shutdown();
out_free_stat:
nfsd_stat_shutdown();
static void __exit exit_nfsd(void)
{
- nfsd_export_shutdown();
nfsd_reply_cache_shutdown();
remove_proc_entry("fs/nfs/exports", NULL);
remove_proc_entry("fs/nfs", NULL);
nfsd_stat_shutdown();
nfsd_lockd_shutdown();
- nfsd_idmap_shutdown();
nfsd4_free_slabs();
nfsd_fault_inject_cleanup();
unregister_filesystem(&nfsd_fs_type);
#endif
}
if (exp) {
- cache_put(&exp->h, &svc_export_cache);
+ exp_put(exp);
fhp->fh_export = NULL;
}
return;
#include <linux/module.h>
#include <linux/fs_struct.h>
#include <linux/swap.h>
+#include <linux/nsproxy.h>
#include <linux/sunrpc/stats.h>
#include <linux/sunrpc/svcsock.h>
ret = nfsd_init_socks(port);
if (ret)
goto out_racache;
- ret = lockd_up();
+ ret = lockd_up(&init_net);
if (ret)
goto out_racache;
ret = nfs4_state_start();
nfsd_up = true;
return 0;
out_lockd:
- lockd_down();
+ lockd_down(&init_net);
out_racache:
nfsd_racache_shutdown();
return ret;
if (!nfsd_up)
return;
nfs4_state_shutdown();
- lockd_down();
+ lockd_down(&init_net);
nfsd_racache_shutdown();
nfsd_up = false;
}
printk(KERN_WARNING "nfsd: last server has exited, flushing export "
"cache\n");
- nfsd_export_flush();
+ nfsd_export_flush(net);
}
void nfsd_reset_versions(void)
int nfsd_create_serv(void)
{
+ int error;
+
WARN_ON(!mutex_is_locked(&nfsd_mutex));
if (nfsd_serv) {
svc_get(nfsd_serv);
if (nfsd_serv == NULL)
return -ENOMEM;
+ error = svc_bind(nfsd_serv, current->nsproxy->net_ns);
+ if (error < 0) {
+ svc_destroy(nfsd_serv);
+ return error;
+ }
+
set_max_drc();
do_gettimeofday(&nfssvc_boot); /* record boot time */
return 0;
int i = 0;
int tot = 0;
int err = 0;
+ struct net *net = &init_net;
WARN_ON(!mutex_is_locked(&nfsd_mutex));
if (err)
break;
}
+
+ if (nfsd_serv->sv_nrthreads == 1)
+ svc_shutdown_net(nfsd_serv, net);
svc_destroy(nfsd_serv);
return err;
{
int error;
bool nfsd_up_before;
+ struct net *net = &init_net;
mutex_lock(&nfsd_mutex);
dprintk("nfsd: creating service\n");
if (error < 0 && !nfsd_up_before)
nfsd_shutdown();
out_destroy:
+ if (nfsd_serv->sv_nrthreads == 1)
+ svc_shutdown_net(nfsd_serv, net);
svc_destroy(nfsd_serv); /* Release server */
out:
mutex_unlock(&nfsd_mutex);
nfsdstats.th_cnt --;
out:
+ if (rqstp->rq_server->sv_nrthreads == 1)
+ svc_shutdown_net(rqstp->rq_server, &init_net);
+
/* Release the thread */
svc_exit_thread(rqstp);
int nfsd_pool_stats_release(struct inode *inode, struct file *file)
{
int ret = seq_release(inode, file);
+ struct net *net = &init_net;
+
mutex_lock(&nfsd_mutex);
/* this function really, really should have been called svc_put() */
+ if (nfsd_serv->sv_nrthreads == 1)
+ svc_shutdown_net(nfsd_serv, net);
svc_destroy(nfsd_serv);
mutex_unlock(&nfsd_mutex);
return ret;
time_t cl_time; /* time of last lease renewal */
struct sockaddr_storage cl_addr; /* client ipaddress */
u32 cl_flavor; /* setclientid pseudoflavor */
- char *cl_principal; /* setclientid principal name */
struct svc_cred cl_cred; /* setclientid principal */
clientid_t cl_clientid; /* generated by server */
nfs4_verifier cl_confirm; /* generated by server */
if (err)
goto out;
- offset = vfs_llseek(file, offset, 0);
+ offset = vfs_llseek(file, offset, SEEK_SET);
if (offset < 0) {
err = nfserrno((int)offset);
goto out_close;
__be32 *datap;
size_t iovlen;
u32 minorversion;
- u32 status;
+ __be32 status;
stateid_t current_stateid;
stateid_t save_stateid;
/* to indicate current and saved state id presents */
};
struct nfsd4_test_stateid {
- __be32 ts_num_ids;
+ u32 ts_num_ids;
struct list_head ts_stateid_list;
};
struct nfsd4_compoundargs *);
int nfs4svc_encode_compoundres(struct svc_rqst *, __be32 *,
struct nfsd4_compoundres *);
-int nfsd4_check_resp_size(struct nfsd4_compoundres *, u32);
+__be32 nfsd4_check_resp_size(struct nfsd4_compoundres *, u32);
void nfsd4_encode_operation(struct nfsd4_compoundres *, struct nfsd4_op *);
void nfsd4_encode_replay(struct nfsd4_compoundres *resp, struct nfsd4_op *op);
__be32 nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
* This function should be implemented when the writeback function
* will be implemented.
*/
+ struct the_nilfs *nilfs;
struct inode *inode = file->f_mapping->host;
int err;
return err;
mutex_lock(&inode->i_mutex);
- if (!nilfs_inode_dirty(inode)) {
- mutex_unlock(&inode->i_mutex);
- return 0;
+ if (nilfs_inode_dirty(inode)) {
+ if (datasync)
+ err = nilfs_construct_dsync_segment(inode->i_sb, inode,
+ 0, LLONG_MAX);
+ else
+ err = nilfs_construct_segment(inode->i_sb);
}
-
- if (datasync)
- err = nilfs_construct_dsync_segment(inode->i_sb, inode, 0,
- LLONG_MAX);
- else
- err = nilfs_construct_segment(inode->i_sb);
-
mutex_unlock(&inode->i_mutex);
+
+ nilfs = inode->i_sb->s_fs_info;
+ if (!err && nilfs_test_opt(nilfs, BARRIER)) {
+ err = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
+ if (err != -EIO)
+ err = 0;
+ }
return err;
}
if (ret < 0)
return ret;
+ nilfs = inode->i_sb->s_fs_info;
+ if (nilfs_test_opt(nilfs, BARRIER)) {
+ ret = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
+ if (ret == -EIO)
+ return ret;
+ }
+
if (argp != NULL) {
- nilfs = inode->i_sb->s_fs_info;
down_read(&nilfs->ns_segctor_sem);
cno = nilfs->ns_cno - 1;
up_read(&nilfs->ns_segctor_sem);
return nilfs_get_dentry(sb, fid->cno, fid->parent_ino, fid->parent_gen);
}
-static int nilfs_encode_fh(struct dentry *dentry, __u32 *fh, int *lenp,
- int connectable)
+static int nilfs_encode_fh(struct inode *inode, __u32 *fh, int *lenp,
+ struct inode *parent)
{
struct nilfs_fid *fid = (struct nilfs_fid *)fh;
- struct inode *inode = dentry->d_inode;
struct nilfs_root *root = NILFS_I(inode)->i_root;
int type;
- if (*lenp < NILFS_FID_SIZE_NON_CONNECTABLE ||
- (connectable && *lenp < NILFS_FID_SIZE_CONNECTABLE))
+ if (parent && *lenp < NILFS_FID_SIZE_CONNECTABLE) {
+ *lenp = NILFS_FID_SIZE_CONNECTABLE;
+ return 255;
+ }
+ if (*lenp < NILFS_FID_SIZE_NON_CONNECTABLE) {
+ *lenp = NILFS_FID_SIZE_NON_CONNECTABLE;
return 255;
+ }
fid->cno = root->cno;
fid->ino = inode->i_ino;
fid->gen = inode->i_generation;
- if (connectable && !S_ISDIR(inode->i_mode)) {
- struct inode *parent;
-
- spin_lock(&dentry->d_lock);
- parent = dentry->d_parent->d_inode;
+ if (parent) {
fid->parent_ino = parent->i_ino;
fid->parent_gen = parent->i_generation;
- spin_unlock(&dentry->d_lock);
-
type = FILEID_NILFS_WITH_PARENT;
*lenp = NILFS_FID_SIZE_CONNECTABLE;
} else {
cp949, cp950, cp1251, cp1255, euc-jp, euc-kr, gb2312, iso8859-1,
iso8859-2, iso8859-3, iso8859-4, iso8859-5, iso8859-6, iso8859-7,
iso8859-8, iso8859-9, iso8859-13, iso8859-14, iso8859-15,
- koi8-r, koi8-ru, koi8-u, sjis, tis-620, utf8.
+ koi8-r, koi8-ru, koi8-u, sjis, tis-620, macroman, utf8.
If you specify a wrong value, it will use the built-in NLS;
compatible with iso8859-1.
input/output character sets. Say Y here for the preferred Ukrainian
(koi8-u) and Belarusian (koi8-ru) character sets.
+config NLS_CODEPAGE_MACROMAN
+ tristate "Codepage macroman"
+ ---help---
+ The Apple HFS file system family can deal with filenames in
+ native language character sets. These character sets are stored in
+ so-called MAC codepages. You need to include the appropriate
+ codepage if you want to be able to read/write these filenames on
+ Mac partitions correctly. This does apply to the filenames
+ only, not to the file contents. You can include several codepages;
+ say Y here if you want to include the Mac codepage that is used for
+ much of Europe -- United Kingdom, Germany, Spain, Italy, and [add
+ more countries here].
+
+ If unsure, say Y.
+
+config NLS_CODEPAGE_MACCELTIC
+ tristate "Codepage macceltic"
+ ---help---
+ The Apple HFS file system family can deal with filenames in
+ native language character sets. These character sets are stored in
+ so-called MAC codepages. You need to include the appropriate
+ codepage if you want to be able to read/write these filenames on
+ Mac partitions correctly. This does apply to the filenames
+ only, not to the file contents. You can include several codepages;
+ say Y here if you want to include the Mac codepage that is used for
+ Celtic.
+
+ If unsure, say Y.
+
+config NLS_CODEPAGE_MACCENTEURO
+ tristate "Codepage maccenteuro"
+ ---help---
+ The Apple HFS file system family can deal with filenames in
+ native language character sets. These character sets are stored in
+ so-called MAC codepages. You need to include the appropriate
+ codepage if you want to be able to read/write these filenames on
+ Mac partitions correctly. This does apply to the filenames
+ only, not to the file contents. You can include several codepages;
+ say Y here if you want to include the Mac codepage that is used for
+ Central Europe.
+
+ If unsure, say Y.
+
+config NLS_CODEPAGE_MACCROATIAN
+ tristate "Codepage maccroatian"
+ ---help---
+ The Apple HFS file system family can deal with filenames in
+ native language character sets. These character sets are stored in
+ so-called MAC codepages. You need to include the appropriate
+ codepage if you want to be able to read/write these filenames on
+ Mac partitions correctly. This does apply to the filenames
+ only, not to the file contents. You can include several codepages;
+ say Y here if you want to include the Mac codepage that is used for
+ Croatian.
+
+ If unsure, say Y.
+
+config NLS_CODEPAGE_MACCYRILLIC
+ tristate "Codepage maccyrillic"
+ ---help---
+ The Apple HFS file system family can deal with filenames in
+ native language character sets. These character sets are stored in
+ so-called MAC codepages. You need to include the appropriate
+ codepage if you want to be able to read/write these filenames on
+ Mac partitions correctly. This does apply to the filenames
+ only, not to the file contents. You can include several codepages;
+ say Y here if you want to include the Mac codepage that is used for
+ Cyrillic.
+
+ If unsure, say Y.
+
+config NLS_CODEPAGE_MACGAELIC
+ tristate "Codepage macgaelic"
+ ---help---
+ The Apple HFS file system family can deal with filenames in
+ native language character sets. These character sets are stored in
+ so-called MAC codepages. You need to include the appropriate
+ codepage if you want to be able to read/write these filenames on
+ Mac partitions correctly. This does apply to the filenames
+ only, not to the file contents. You can include several codepages;
+ say Y here if you want to include the Mac codepage that is used for
+ Gaelic.
+
+ If unsure, say Y.
+
+config NLS_CODEPAGE_MACGREEK
+ tristate "Codepage macgreek"
+ ---help---
+ The Apple HFS file system family can deal with filenames in
+ native language character sets. These character sets are stored in
+ so-called MAC codepages. You need to include the appropriate
+ codepage if you want to be able to read/write these filenames on
+ Mac partitions correctly. This does apply to the filenames
+ only, not to the file contents. You can include several codepages;
+ say Y here if you want to include the Mac codepage that is used for
+ Greek.
+
+ If unsure, say Y.
+
+config NLS_CODEPAGE_MACICELAND
+ tristate "Codepage maciceland"
+ ---help---
+ The Apple HFS file system family can deal with filenames in
+ native language character sets. These character sets are stored in
+ so-called MAC codepages. You need to include the appropriate
+ codepage if you want to be able to read/write these filenames on
+ Mac partitions correctly. This does apply to the filenames
+ only, not to the file contents. You can include several codepages;
+ say Y here if you want to include the Mac codepage that is used for
+ Iceland.
+
+ If unsure, say Y.
+
+config NLS_CODEPAGE_MACINUIT
+ tristate "Codepage macinuit"
+ ---help---
+ The Apple HFS file system family can deal with filenames in
+ native language character sets. These character sets are stored in
+ so-called MAC codepages. You need to include the appropriate
+ codepage if you want to be able to read/write these filenames on
+ Mac partitions correctly. This does apply to the filenames
+ only, not to the file contents. You can include several codepages;
+ say Y here if you want to include the Mac codepage that is used for
+ Inuit.
+
+ If unsure, say Y.
+
+config NLS_CODEPAGE_MACROMANIAN
+ tristate "Codepage macromanian"
+ ---help---
+ The Apple HFS file system family can deal with filenames in
+ native language character sets. These character sets are stored in
+ so-called MAC codepages. You need to include the appropriate
+ codepage if you want to be able to read/write these filenames on
+ Mac partitions correctly. This does apply to the filenames
+ only, not to the file contents. You can include several codepages;
+ say Y here if you want to include the Mac codepage that is used for
+ Romanian.
+
+ If unsure, say Y.
+
+config NLS_CODEPAGE_MACTURKISH
+ tristate "Codepage macturkish"
+ ---help---
+ The Apple HFS file system family can deal with filenames in
+ native language character sets. These character sets are stored in
+ so-called MAC codepages. You need to include the appropriate
+ codepage if you want to be able to read/write these filenames on
+ Mac partitions correctly. This does apply to the filenames
+ only, not to the file contents. You can include several codepages;
+ say Y here if you want to include the Mac codepage that is used for
+ Turkish.
+
+ If unsure, say Y.
+
config NLS_UTF8
tristate "NLS UTF-8"
help
# Makefile for native language support
#
+CONFIG_NLS_MACCELTIC=m
+CONFIG_NLS_MACCENTEURO=m
+CONFIG_NLS_MACCROATIAN=m
+CONFIG_NLS_MACCYRILLIC=m
+CONFIG_NLS_MACGAELIC=m
+CONFIG_NLS_MACGREEK=m
+CONFIG_NLS_MACICELAND=m
+CONFIG_NLS_MACINUIT=m
+CONFIG_NLS_MACROMANIAN=m
+CONFIG_NLS_MACROMAN=m
+CONFIG_NLS_MACTURKISH=m
+
obj-$(CONFIG_NLS) += nls_base.o
obj-$(CONFIG_NLS_CODEPAGE_437) += nls_cp437.o
obj-$(CONFIG_NLS_KOI8_R) += nls_koi8-r.o
obj-$(CONFIG_NLS_KOI8_U) += nls_koi8-u.o nls_koi8-ru.o
obj-$(CONFIG_NLS_UTF8) += nls_utf8.o
+obj-$(CONFIG_NLS_MACCELTIC) += nls_macceltic.o
+obj-$(CONFIG_NLS_MACCENTEURO) += nls_maccenteuro.o
+obj-$(CONFIG_NLS_MACCROATIAN) += nls_maccroatian.o
+obj-$(CONFIG_NLS_MACCYRILLIC) += nls_maccyrillic.o
+obj-$(CONFIG_NLS_MACGAELIC) += nls_macgaelic.o
+obj-$(CONFIG_NLS_MACGREEK) += nls_macgreek.o
+obj-$(CONFIG_NLS_MACICELAND) += nls_maciceland.o
+obj-$(CONFIG_NLS_MACINUIT) += nls_macinuit.o
+obj-$(CONFIG_NLS_MACROMANIAN) += nls_macromanian.o
+obj-$(CONFIG_NLS_MACROMAN) += nls_macroman.o
+obj-$(CONFIG_NLS_MACTURKISH) += nls_macturkish.o
--- /dev/null
+/*
+ * linux/fs/nls/nls_macceltic.c
+ *
+ * Charset macceltic translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+/*
+ * COPYRIGHT AND PERMISSION NOTICE
+ *
+ * Copyright 1991-2012 Unicode, Inc. All rights reserved. Distributed under
+ * the Terms of Use in http://www.unicode.org/copyright.html.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of the Unicode data files and any associated documentation (the "Data
+ * Files") or Unicode software and any associated documentation (the
+ * "Software") to deal in the Data Files or Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, and/or sell copies of the Data Files or Software, and
+ * to permit persons to whom the Data Files or Software are furnished to do
+ * so, provided that (a) the above copyright notice(s) and this permission
+ * notice appear with all copies of the Data Files or Software, (b) both the
+ * above copyright notice(s) and this permission notice appear in associated
+ * documentation, and (c) there is clear notice in each modified Data File or
+ * in the Software as well as in the documentation associated with the Data
+ * File(s) or Software that the data or software has been modified.
+ *
+ * THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+ * KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+ * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THE DATA FILES OR SOFTWARE.
+ *
+ * Except as contained in this notice, the name of a copyright holder shall
+ * not be used in advertising or otherwise to promote the sale, use or other
+ * dealings in these Data Files or Software without prior written
+ * authorization of the copyright holder.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static const wchar_t charset2uni[256] = {
+ /* 0x00 */
+ 0x0000, 0x0001, 0x0002, 0x0003,
+ 0x0004, 0x0005, 0x0006, 0x0007,
+ 0x0008, 0x0009, 0x000a, 0x000b,
+ 0x000c, 0x000d, 0x000e, 0x000f,
+ /* 0x10 */
+ 0x0010, 0x0011, 0x0012, 0x0013,
+ 0x0014, 0x0015, 0x0016, 0x0017,
+ 0x0018, 0x0019, 0x001a, 0x001b,
+ 0x001c, 0x001d, 0x001e, 0x001f,
+ /* 0x20 */
+ 0x0020, 0x0021, 0x0022, 0x0023,
+ 0x0024, 0x0025, 0x0026, 0x0027,
+ 0x0028, 0x0029, 0x002a, 0x002b,
+ 0x002c, 0x002d, 0x002e, 0x002f,
+ /* 0x30 */
+ 0x0030, 0x0031, 0x0032, 0x0033,
+ 0x0034, 0x0035, 0x0036, 0x0037,
+ 0x0038, 0x0039, 0x003a, 0x003b,
+ 0x003c, 0x003d, 0x003e, 0x003f,
+ /* 0x40 */
+ 0x0040, 0x0041, 0x0042, 0x0043,
+ 0x0044, 0x0045, 0x0046, 0x0047,
+ 0x0048, 0x0049, 0x004a, 0x004b,
+ 0x004c, 0x004d, 0x004e, 0x004f,
+ /* 0x50 */
+ 0x0050, 0x0051, 0x0052, 0x0053,
+ 0x0054, 0x0055, 0x0056, 0x0057,
+ 0x0058, 0x0059, 0x005a, 0x005b,
+ 0x005c, 0x005d, 0x005e, 0x005f,
+ /* 0x60 */
+ 0x0060, 0x0061, 0x0062, 0x0063,
+ 0x0064, 0x0065, 0x0066, 0x0067,
+ 0x0068, 0x0069, 0x006a, 0x006b,
+ 0x006c, 0x006d, 0x006e, 0x006f,
+ /* 0x70 */
+ 0x0070, 0x0071, 0x0072, 0x0073,
+ 0x0074, 0x0075, 0x0076, 0x0077,
+ 0x0078, 0x0079, 0x007a, 0x007b,
+ 0x007c, 0x007d, 0x007e, 0x007f,
+ /* 0x80 */
+ 0x00c4, 0x00c5, 0x00c7, 0x00c9,
+ 0x00d1, 0x00d6, 0x00dc, 0x00e1,
+ 0x00e0, 0x00e2, 0x00e4, 0x00e3,
+ 0x00e5, 0x00e7, 0x00e9, 0x00e8,
+ /* 0x90 */
+ 0x00ea, 0x00eb, 0x00ed, 0x00ec,
+ 0x00ee, 0x00ef, 0x00f1, 0x00f3,
+ 0x00f2, 0x00f4, 0x00f6, 0x00f5,
+ 0x00fa, 0x00f9, 0x00fb, 0x00fc,
+ /* 0xa0 */
+ 0x2020, 0x00b0, 0x00a2, 0x00a3,
+ 0x00a7, 0x2022, 0x00b6, 0x00df,
+ 0x00ae, 0x00a9, 0x2122, 0x00b4,
+ 0x00a8, 0x2260, 0x00c6, 0x00d8,
+ /* 0xb0 */
+ 0x221e, 0x00b1, 0x2264, 0x2265,
+ 0x00a5, 0x00b5, 0x2202, 0x2211,
+ 0x220f, 0x03c0, 0x222b, 0x00aa,
+ 0x00ba, 0x03a9, 0x00e6, 0x00f8,
+ /* 0xc0 */
+ 0x00bf, 0x00a1, 0x00ac, 0x221a,
+ 0x0192, 0x2248, 0x2206, 0x00ab,
+ 0x00bb, 0x2026, 0x00a0, 0x00c0,
+ 0x00c3, 0x00d5, 0x0152, 0x0153,
+ /* 0xd0 */
+ 0x2013, 0x2014, 0x201c, 0x201d,
+ 0x2018, 0x2019, 0x00f7, 0x25ca,
+ 0x00ff, 0x0178, 0x2044, 0x20ac,
+ 0x2039, 0x203a, 0x0176, 0x0177,
+ /* 0xe0 */
+ 0x2021, 0x00b7, 0x1ef2, 0x1ef3,
+ 0x2030, 0x00c2, 0x00ca, 0x00c1,
+ 0x00cb, 0x00c8, 0x00cd, 0x00ce,
+ 0x00cf, 0x00cc, 0x00d3, 0x00d4,
+ /* 0xf0 */
+ 0x2663, 0x00d2, 0x00da, 0x00db,
+ 0x00d9, 0x0131, 0x00dd, 0x00fd,
+ 0x0174, 0x0175, 0x1e84, 0x1e85,
+ 0x1e80, 0x1e81, 0x1e82, 0x1e83,
+};
+
+static const unsigned char page00[256] = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+ 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+ 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+ 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+ 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+ 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+ 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+ 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+ 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0xca, 0xc1, 0xa2, 0xa3, 0x00, 0xb4, 0x00, 0xa4, /* 0xa0-0xa7 */
+ 0xac, 0xa9, 0xbb, 0xc7, 0xc2, 0x00, 0xa8, 0x00, /* 0xa8-0xaf */
+ 0xa1, 0xb1, 0x00, 0x00, 0xab, 0xb5, 0xa6, 0xe1, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0xbc, 0xc8, 0x00, 0x00, 0x00, 0xc0, /* 0xb8-0xbf */
+ 0xcb, 0xe7, 0xe5, 0xcc, 0x80, 0x81, 0xae, 0x82, /* 0xc0-0xc7 */
+ 0xe9, 0x83, 0xe6, 0xe8, 0xed, 0xea, 0xeb, 0xec, /* 0xc8-0xcf */
+ 0x00, 0x84, 0xf1, 0xee, 0xef, 0xcd, 0x85, 0x00, /* 0xd0-0xd7 */
+ 0xaf, 0xf4, 0xf2, 0xf3, 0x86, 0xf6, 0x00, 0xa7, /* 0xd8-0xdf */
+ 0x88, 0x87, 0x89, 0x8b, 0x8a, 0x8c, 0xbe, 0x8d, /* 0xe0-0xe7 */
+ 0x8f, 0x8e, 0x90, 0x91, 0x93, 0x92, 0x94, 0x95, /* 0xe8-0xef */
+ 0x00, 0x96, 0x98, 0x97, 0x99, 0x9b, 0x9a, 0xd6, /* 0xf0-0xf7 */
+ 0xbf, 0x9d, 0x9c, 0x9e, 0x9f, 0xf7, 0x00, 0xd8, /* 0xf8-0xff */
+};
+
+static const unsigned char page01[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0xf5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0xce, 0xcf, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0xf8, 0xf9, 0xde, 0xdf, /* 0x70-0x77 */
+ 0xd9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0xc4, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page03[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0xbd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0xb9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page1e[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0xfc, 0xfd, 0xfe, 0xff, 0xfa, 0xfb, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0xe2, 0xe3, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page20[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0xd0, 0xd1, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0xd4, 0xd5, 0x00, 0x00, 0xd2, 0xd3, 0x00, 0x00, /* 0x18-0x1f */
+ 0xa0, 0xe0, 0xa5, 0x00, 0x00, 0x00, 0xc9, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0xe4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0xdc, 0xdd, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0xdb, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page21[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0xaa, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page22[256] = {
+ 0x00, 0x00, 0xb6, 0x00, 0x00, 0x00, 0xc6, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb8, /* 0x08-0x0f */
+ 0x00, 0xb7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, 0xb0, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0xba, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0xc5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0xad, 0x00, 0x00, 0x00, 0xb2, 0xb3, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page25[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0xd7, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page26[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0xf0, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char *const page_uni2charset[256] = {
+ page00, page01, NULL, page03, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, page1e, NULL,
+ page20, page21, page22, NULL, NULL, page25, page26, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+};
+
+static const unsigned char charset2lower[256] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x00-0x07 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x08-0x0f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x10-0x17 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x18-0x1f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x20-0x27 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x28-0x2f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30-0x37 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x38-0x3f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x40-0x47 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x48-0x4f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50-0x57 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x58-0x5f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60-0x67 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x68-0x6f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70-0x77 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x78-0x7f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x80-0x87 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x88-0x8f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90-0x97 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x98-0x9f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa0-0xa7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa8-0xaf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0-0xb7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb8-0xbf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc0-0xc7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc8-0xcf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0-0xd7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd8-0xdf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe0-0xe7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe8-0xef */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf0-0xf7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf8-0xff */
+};
+
+static const unsigned char charset2upper[256] = {
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x00-0x07 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x08-0x0f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x10-0x17 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x18-0x1f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x20-0x27 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x28-0x2f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x30-0x37 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x38-0x3f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x40-0x47 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x48-0x4f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x50-0x57 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x58-0x5f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x60-0x67 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x68-0x6f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x70-0x77 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x78-0x7f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x80-0x87 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x88-0x8f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x90-0x97 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x98-0x9f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xa0-0xa7 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xa8-0xaf */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xb0-0xb7 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xb8-0xbf */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xc0-0xc7 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xc8-0xcf */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xd0-0xd7 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xd8-0xdf */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xe0-0xe7 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xe8-0xef */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xf0-0xf7 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+ const unsigned char *uni2charset;
+ unsigned char cl = uni & 0x00ff;
+ unsigned char ch = (uni & 0xff00) >> 8;
+
+ if (boundlen <= 0)
+ return -ENAMETOOLONG;
+
+ uni2charset = page_uni2charset[ch];
+ if (uni2charset && uni2charset[cl])
+ out[0] = uni2charset[cl];
+ else
+ return -EINVAL;
+ return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+ *uni = charset2uni[*rawstring];
+ if (*uni == 0x0000)
+ return -EINVAL;
+ return 1;
+}
+
+static struct nls_table table = {
+ .charset = "macceltic",
+ .uni2char = uni2char,
+ .char2uni = char2uni,
+ .charset2lower = charset2lower,
+ .charset2upper = charset2upper,
+ .owner = THIS_MODULE,
+};
+
+static int __init init_nls_macceltic(void)
+{
+ return register_nls(&table);
+}
+
+static void __exit exit_nls_macceltic(void)
+{
+ unregister_nls(&table);
+}
+
+module_init(init_nls_macceltic)
+module_exit(exit_nls_macceltic)
+
+MODULE_LICENSE("Dual BSD/GPL");
--- /dev/null
+/*
+ * linux/fs/nls/nls_maccenteuro.c
+ *
+ * Charset maccenteuro translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+/*
+ * COPYRIGHT AND PERMISSION NOTICE
+ *
+ * Copyright 1991-2012 Unicode, Inc. All rights reserved. Distributed under
+ * the Terms of Use in http://www.unicode.org/copyright.html.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of the Unicode data files and any associated documentation (the "Data
+ * Files") or Unicode software and any associated documentation (the
+ * "Software") to deal in the Data Files or Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, and/or sell copies of the Data Files or Software, and
+ * to permit persons to whom the Data Files or Software are furnished to do
+ * so, provided that (a) the above copyright notice(s) and this permission
+ * notice appear with all copies of the Data Files or Software, (b) both the
+ * above copyright notice(s) and this permission notice appear in associated
+ * documentation, and (c) there is clear notice in each modified Data File or
+ * in the Software as well as in the documentation associated with the Data
+ * File(s) or Software that the data or software has been modified.
+ *
+ * THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+ * KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+ * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THE DATA FILES OR SOFTWARE.
+ *
+ * Except as contained in this notice, the name of a copyright holder shall
+ * not be used in advertising or otherwise to promote the sale, use or other
+ * dealings in these Data Files or Software without prior written
+ * authorization of the copyright holder.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static const wchar_t charset2uni[256] = {
+ /* 0x00 */
+ 0x0000, 0x0001, 0x0002, 0x0003,
+ 0x0004, 0x0005, 0x0006, 0x0007,
+ 0x0008, 0x0009, 0x000a, 0x000b,
+ 0x000c, 0x000d, 0x000e, 0x000f,
+ /* 0x10 */
+ 0x0010, 0x0011, 0x0012, 0x0013,
+ 0x0014, 0x0015, 0x0016, 0x0017,
+ 0x0018, 0x0019, 0x001a, 0x001b,
+ 0x001c, 0x001d, 0x001e, 0x001f,
+ /* 0x20 */
+ 0x0020, 0x0021, 0x0022, 0x0023,
+ 0x0024, 0x0025, 0x0026, 0x0027,
+ 0x0028, 0x0029, 0x002a, 0x002b,
+ 0x002c, 0x002d, 0x002e, 0x002f,
+ /* 0x30 */
+ 0x0030, 0x0031, 0x0032, 0x0033,
+ 0x0034, 0x0035, 0x0036, 0x0037,
+ 0x0038, 0x0039, 0x003a, 0x003b,
+ 0x003c, 0x003d, 0x003e, 0x003f,
+ /* 0x40 */
+ 0x0040, 0x0041, 0x0042, 0x0043,
+ 0x0044, 0x0045, 0x0046, 0x0047,
+ 0x0048, 0x0049, 0x004a, 0x004b,
+ 0x004c, 0x004d, 0x004e, 0x004f,
+ /* 0x50 */
+ 0x0050, 0x0051, 0x0052, 0x0053,
+ 0x0054, 0x0055, 0x0056, 0x0057,
+ 0x0058, 0x0059, 0x005a, 0x005b,
+ 0x005c, 0x005d, 0x005e, 0x005f,
+ /* 0x60 */
+ 0x0060, 0x0061, 0x0062, 0x0063,
+ 0x0064, 0x0065, 0x0066, 0x0067,
+ 0x0068, 0x0069, 0x006a, 0x006b,
+ 0x006c, 0x006d, 0x006e, 0x006f,
+ /* 0x70 */
+ 0x0070, 0x0071, 0x0072, 0x0073,
+ 0x0074, 0x0075, 0x0076, 0x0077,
+ 0x0078, 0x0079, 0x007a, 0x007b,
+ 0x007c, 0x007d, 0x007e, 0x007f,
+ /* 0x80 */
+ 0x00c4, 0x0100, 0x0101, 0x00c9,
+ 0x0104, 0x00d6, 0x00dc, 0x00e1,
+ 0x0105, 0x010c, 0x00e4, 0x010d,
+ 0x0106, 0x0107, 0x00e9, 0x0179,
+ /* 0x90 */
+ 0x017a, 0x010e, 0x00ed, 0x010f,
+ 0x0112, 0x0113, 0x0116, 0x00f3,
+ 0x0117, 0x00f4, 0x00f6, 0x00f5,
+ 0x00fa, 0x011a, 0x011b, 0x00fc,
+ /* 0xa0 */
+ 0x2020, 0x00b0, 0x0118, 0x00a3,
+ 0x00a7, 0x2022, 0x00b6, 0x00df,
+ 0x00ae, 0x00a9, 0x2122, 0x0119,
+ 0x00a8, 0x2260, 0x0123, 0x012e,
+ /* 0xb0 */
+ 0x012f, 0x012a, 0x2264, 0x2265,
+ 0x012b, 0x0136, 0x2202, 0x2211,
+ 0x0142, 0x013b, 0x013c, 0x013d,
+ 0x013e, 0x0139, 0x013a, 0x0145,
+ /* 0xc0 */
+ 0x0146, 0x0143, 0x00ac, 0x221a,
+ 0x0144, 0x0147, 0x2206, 0x00ab,
+ 0x00bb, 0x2026, 0x00a0, 0x0148,
+ 0x0150, 0x00d5, 0x0151, 0x014c,
+ /* 0xd0 */
+ 0x2013, 0x2014, 0x201c, 0x201d,
+ 0x2018, 0x2019, 0x00f7, 0x25ca,
+ 0x014d, 0x0154, 0x0155, 0x0158,
+ 0x2039, 0x203a, 0x0159, 0x0156,
+ /* 0xe0 */
+ 0x0157, 0x0160, 0x201a, 0x201e,
+ 0x0161, 0x015a, 0x015b, 0x00c1,
+ 0x0164, 0x0165, 0x00cd, 0x017d,
+ 0x017e, 0x016a, 0x00d3, 0x00d4,
+ /* 0xf0 */
+ 0x016b, 0x016e, 0x00da, 0x016f,
+ 0x0170, 0x0171, 0x0172, 0x0173,
+ 0x00dd, 0x00fd, 0x0137, 0x017b,
+ 0x0141, 0x017c, 0x0122, 0x02c7,
+};
+
+static const unsigned char page00[256] = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+ 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+ 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+ 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+ 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+ 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+ 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+ 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+ 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0xca, 0x00, 0x00, 0xa3, 0x00, 0x00, 0x00, 0xa4, /* 0xa0-0xa7 */
+ 0xac, 0xa9, 0x00, 0xc7, 0xc2, 0x00, 0xa8, 0x00, /* 0xa8-0xaf */
+ 0xa1, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa6, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0xc8, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0xe7, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x83, 0x00, 0x00, 0x00, 0xea, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0xee, 0xef, 0xcd, 0x85, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0xf2, 0x00, 0x86, 0xf8, 0x00, 0xa7, /* 0xd8-0xdf */
+ 0x00, 0x87, 0x00, 0x00, 0x8a, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x8e, 0x00, 0x00, 0x00, 0x92, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x97, 0x99, 0x9b, 0x9a, 0xd6, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x9c, 0x00, 0x9f, 0xf9, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page01[256] = {
+ 0x81, 0x82, 0x00, 0x00, 0x84, 0x88, 0x8c, 0x8d, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x89, 0x8b, 0x91, 0x93, /* 0x08-0x0f */
+ 0x00, 0x00, 0x94, 0x95, 0x00, 0x00, 0x96, 0x98, /* 0x10-0x17 */
+ 0xa2, 0xab, 0x9d, 0x9e, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0xfe, 0xae, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0xb1, 0xb4, 0x00, 0x00, 0xaf, 0xb0, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb5, 0xfa, /* 0x30-0x37 */
+ 0x00, 0xbd, 0xbe, 0xb9, 0xba, 0xbb, 0xbc, 0x00, /* 0x38-0x3f */
+ 0x00, 0xfc, 0xb8, 0xc1, 0xc4, 0xbf, 0xc0, 0xc5, /* 0x40-0x47 */
+ 0xcb, 0x00, 0x00, 0x00, 0xcf, 0xd8, 0x00, 0x00, /* 0x48-0x4f */
+ 0xcc, 0xce, 0x00, 0x00, 0xd9, 0xda, 0xdf, 0xe0, /* 0x50-0x57 */
+ 0xdb, 0xde, 0xe5, 0xe6, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0xe1, 0xe4, 0x00, 0x00, 0xe8, 0xe9, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0xed, 0xf0, 0x00, 0x00, 0xf1, 0xf3, /* 0x68-0x6f */
+ 0xf4, 0xf5, 0xf6, 0xf7, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x8f, 0x90, 0xfb, 0xfd, 0xeb, 0xec, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page02[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page20[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0xd0, 0xd1, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0xd4, 0xd5, 0xe2, 0x00, 0xd2, 0xd3, 0xe3, 0x00, /* 0x18-0x1f */
+ 0xa0, 0x00, 0xa5, 0x00, 0x00, 0x00, 0xc9, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0xdc, 0xdd, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page21[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0xaa, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page22[256] = {
+ 0x00, 0x00, 0xb6, 0x00, 0x00, 0x00, 0xc6, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0xb7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0xad, 0x00, 0x00, 0x00, 0xb2, 0xb3, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page25[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0xd7, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char *const page_uni2charset[256] = {
+ page00, page01, page02, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ page20, page21, page22, NULL, NULL, page25, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+};
+
+static const unsigned char charset2lower[256] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x00-0x07 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x08-0x0f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x10-0x17 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x18-0x1f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x20-0x27 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x28-0x2f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30-0x37 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x38-0x3f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x40-0x47 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x48-0x4f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50-0x57 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x58-0x5f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60-0x67 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x68-0x6f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70-0x77 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x78-0x7f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x80-0x87 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x88-0x8f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90-0x97 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x98-0x9f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa0-0xa7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa8-0xaf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0-0xb7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb8-0xbf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc0-0xc7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc8-0xcf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0-0xd7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd8-0xdf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe0-0xe7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe8-0xef */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf0-0xf7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf8-0xff */
+};
+
+static const unsigned char charset2upper[256] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x00-0x07 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x08-0x0f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x10-0x17 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x18-0x1f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x20-0x27 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x28-0x2f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30-0x37 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x38-0x3f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x40-0x47 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x48-0x4f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50-0x57 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x58-0x5f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60-0x67 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x68-0x6f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70-0x77 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x78-0x7f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x80-0x87 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x88-0x8f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90-0x97 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x98-0x9f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa0-0xa7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa8-0xaf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0-0xb7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb8-0xbf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc0-0xc7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc8-0xcf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0-0xd7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd8-0xdf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe0-0xe7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe8-0xef */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf0-0xf7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+ const unsigned char *uni2charset;
+ unsigned char cl = uni & 0x00ff;
+ unsigned char ch = (uni & 0xff00) >> 8;
+
+ if (boundlen <= 0)
+ return -ENAMETOOLONG;
+
+ uni2charset = page_uni2charset[ch];
+ if (uni2charset && uni2charset[cl])
+ out[0] = uni2charset[cl];
+ else
+ return -EINVAL;
+ return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+ *uni = charset2uni[*rawstring];
+ if (*uni == 0x0000)
+ return -EINVAL;
+ return 1;
+}
+
+static struct nls_table table = {
+ .charset = "maccenteuro",
+ .uni2char = uni2char,
+ .char2uni = char2uni,
+ .charset2lower = charset2lower,
+ .charset2upper = charset2upper,
+ .owner = THIS_MODULE,
+};
+
+static int __init init_nls_maccenteuro(void)
+{
+ return register_nls(&table);
+}
+
+static void __exit exit_nls_maccenteuro(void)
+{
+ unregister_nls(&table);
+}
+
+module_init(init_nls_maccenteuro)
+module_exit(exit_nls_maccenteuro)
+
+MODULE_LICENSE("Dual BSD/GPL");
--- /dev/null
+/*
+ * linux/fs/nls/nls_maccroatian.c
+ *
+ * Charset maccroatian translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+/*
+ * COPYRIGHT AND PERMISSION NOTICE
+ *
+ * Copyright 1991-2012 Unicode, Inc. All rights reserved. Distributed under
+ * the Terms of Use in http://www.unicode.org/copyright.html.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of the Unicode data files and any associated documentation (the "Data
+ * Files") or Unicode software and any associated documentation (the
+ * "Software") to deal in the Data Files or Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, and/or sell copies of the Data Files or Software, and
+ * to permit persons to whom the Data Files or Software are furnished to do
+ * so, provided that (a) the above copyright notice(s) and this permission
+ * notice appear with all copies of the Data Files or Software, (b) both the
+ * above copyright notice(s) and this permission notice appear in associated
+ * documentation, and (c) there is clear notice in each modified Data File or
+ * in the Software as well as in the documentation associated with the Data
+ * File(s) or Software that the data or software has been modified.
+ *
+ * THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+ * KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+ * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THE DATA FILES OR SOFTWARE.
+ *
+ * Except as contained in this notice, the name of a copyright holder shall
+ * not be used in advertising or otherwise to promote the sale, use or other
+ * dealings in these Data Files or Software without prior written
+ * authorization of the copyright holder.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static const wchar_t charset2uni[256] = {
+ /* 0x00 */
+ 0x0000, 0x0001, 0x0002, 0x0003,
+ 0x0004, 0x0005, 0x0006, 0x0007,
+ 0x0008, 0x0009, 0x000a, 0x000b,
+ 0x000c, 0x000d, 0x000e, 0x000f,
+ /* 0x10 */
+ 0x0010, 0x0011, 0x0012, 0x0013,
+ 0x0014, 0x0015, 0x0016, 0x0017,
+ 0x0018, 0x0019, 0x001a, 0x001b,
+ 0x001c, 0x001d, 0x001e, 0x001f,
+ /* 0x20 */
+ 0x0020, 0x0021, 0x0022, 0x0023,
+ 0x0024, 0x0025, 0x0026, 0x0027,
+ 0x0028, 0x0029, 0x002a, 0x002b,
+ 0x002c, 0x002d, 0x002e, 0x002f,
+ /* 0x30 */
+ 0x0030, 0x0031, 0x0032, 0x0033,
+ 0x0034, 0x0035, 0x0036, 0x0037,
+ 0x0038, 0x0039, 0x003a, 0x003b,
+ 0x003c, 0x003d, 0x003e, 0x003f,
+ /* 0x40 */
+ 0x0040, 0x0041, 0x0042, 0x0043,
+ 0x0044, 0x0045, 0x0046, 0x0047,
+ 0x0048, 0x0049, 0x004a, 0x004b,
+ 0x004c, 0x004d, 0x004e, 0x004f,
+ /* 0x50 */
+ 0x0050, 0x0051, 0x0052, 0x0053,
+ 0x0054, 0x0055, 0x0056, 0x0057,
+ 0x0058, 0x0059, 0x005a, 0x005b,
+ 0x005c, 0x005d, 0x005e, 0x005f,
+ /* 0x60 */
+ 0x0060, 0x0061, 0x0062, 0x0063,
+ 0x0064, 0x0065, 0x0066, 0x0067,
+ 0x0068, 0x0069, 0x006a, 0x006b,
+ 0x006c, 0x006d, 0x006e, 0x006f,
+ /* 0x70 */
+ 0x0070, 0x0071, 0x0072, 0x0073,
+ 0x0074, 0x0075, 0x0076, 0x0077,
+ 0x0078, 0x0079, 0x007a, 0x007b,
+ 0x007c, 0x007d, 0x007e, 0x007f,
+ /* 0x80 */
+ 0x00c4, 0x00c5, 0x00c7, 0x00c9,
+ 0x00d1, 0x00d6, 0x00dc, 0x00e1,
+ 0x00e0, 0x00e2, 0x00e4, 0x00e3,
+ 0x00e5, 0x00e7, 0x00e9, 0x00e8,
+ /* 0x90 */
+ 0x00ea, 0x00eb, 0x00ed, 0x00ec,
+ 0x00ee, 0x00ef, 0x00f1, 0x00f3,
+ 0x00f2, 0x00f4, 0x00f6, 0x00f5,
+ 0x00fa, 0x00f9, 0x00fb, 0x00fc,
+ /* 0xa0 */
+ 0x2020, 0x00b0, 0x00a2, 0x00a3,
+ 0x00a7, 0x2022, 0x00b6, 0x00df,
+ 0x00ae, 0x0160, 0x2122, 0x00b4,
+ 0x00a8, 0x2260, 0x017d, 0x00d8,
+ /* 0xb0 */
+ 0x221e, 0x00b1, 0x2264, 0x2265,
+ 0x2206, 0x00b5, 0x2202, 0x2211,
+ 0x220f, 0x0161, 0x222b, 0x00aa,
+ 0x00ba, 0x03a9, 0x017e, 0x00f8,
+ /* 0xc0 */
+ 0x00bf, 0x00a1, 0x00ac, 0x221a,
+ 0x0192, 0x2248, 0x0106, 0x00ab,
+ 0x010c, 0x2026, 0x00a0, 0x00c0,
+ 0x00c3, 0x00d5, 0x0152, 0x0153,
+ /* 0xd0 */
+ 0x0110, 0x2014, 0x201c, 0x201d,
+ 0x2018, 0x2019, 0x00f7, 0x25ca,
+ 0xf8ff, 0x00a9, 0x2044, 0x20ac,
+ 0x2039, 0x203a, 0x00c6, 0x00bb,
+ /* 0xe0 */
+ 0x2013, 0x00b7, 0x201a, 0x201e,
+ 0x2030, 0x00c2, 0x0107, 0x00c1,
+ 0x010d, 0x00c8, 0x00cd, 0x00ce,
+ 0x00cf, 0x00cc, 0x00d3, 0x00d4,
+ /* 0xf0 */
+ 0x0111, 0x00d2, 0x00da, 0x00db,
+ 0x00d9, 0x0131, 0x02c6, 0x02dc,
+ 0x00af, 0x03c0, 0x00cb, 0x02da,
+ 0x00b8, 0x00ca, 0x00e6, 0x02c7,
+};
+
+static const unsigned char page00[256] = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+ 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+ 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+ 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+ 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+ 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+ 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+ 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+ 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0xca, 0xc1, 0xa2, 0xa3, 0x00, 0x00, 0x00, 0xa4, /* 0xa0-0xa7 */
+ 0xac, 0xd9, 0xbb, 0xc7, 0xc2, 0x00, 0xa8, 0xf8, /* 0xa8-0xaf */
+ 0xa1, 0xb1, 0x00, 0x00, 0xab, 0xb5, 0xa6, 0xe1, /* 0xb0-0xb7 */
+ 0xfc, 0x00, 0xbc, 0xdf, 0x00, 0x00, 0x00, 0xc0, /* 0xb8-0xbf */
+ 0xcb, 0xe7, 0xe5, 0xcc, 0x80, 0x81, 0xde, 0x82, /* 0xc0-0xc7 */
+ 0xe9, 0x83, 0xfd, 0xfa, 0xed, 0xea, 0xeb, 0xec, /* 0xc8-0xcf */
+ 0x00, 0x84, 0xf1, 0xee, 0xef, 0xcd, 0x85, 0x00, /* 0xd0-0xd7 */
+ 0xaf, 0xf4, 0xf2, 0xf3, 0x86, 0x00, 0x00, 0xa7, /* 0xd8-0xdf */
+ 0x88, 0x87, 0x89, 0x8b, 0x8a, 0x8c, 0xfe, 0x8d, /* 0xe0-0xe7 */
+ 0x8f, 0x8e, 0x90, 0x91, 0x93, 0x92, 0x94, 0x95, /* 0xe8-0xef */
+ 0x00, 0x96, 0x98, 0x97, 0x99, 0x9b, 0x9a, 0xd6, /* 0xf0-0xf7 */
+ 0xbf, 0x9d, 0x9c, 0x9e, 0x9f, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page01[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0xe6, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0xc8, 0xe8, 0x00, 0x00, /* 0x08-0x0f */
+ 0xd0, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0xf5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0xce, 0xcf, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0xa9, 0xb9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0xae, 0xbe, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0xc4, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page02[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf6, 0xff, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0xfb, 0x00, 0xf7, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page03[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0xbd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0xf9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page20[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0xe0, 0xd1, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0xd4, 0xd5, 0xe2, 0x00, 0xd2, 0xd3, 0xe3, 0x00, /* 0x18-0x1f */
+ 0xa0, 0x00, 0xa5, 0x00, 0x00, 0x00, 0xc9, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0xe4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0xdc, 0xdd, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0xdb, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page21[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0xaa, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page22[256] = {
+ 0x00, 0x00, 0xb6, 0x00, 0x00, 0x00, 0xb4, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb8, /* 0x08-0x0f */
+ 0x00, 0xb7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, 0xb0, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0xba, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0xc5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0xad, 0x00, 0x00, 0x00, 0xb2, 0xb3, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page25[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0xd7, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char pagef8[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd8, /* 0xf8-0xff */
+};
+
+static const unsigned char *const page_uni2charset[256] = {
+ page00, page01, page02, page03, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ page20, page21, page22, NULL, NULL, page25, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ pagef8, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+};
+
+static const unsigned char charset2lower[256] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x00-0x07 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x08-0x0f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x10-0x17 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x18-0x1f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x20-0x27 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x28-0x2f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30-0x37 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x38-0x3f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x40-0x47 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x48-0x4f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50-0x57 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x58-0x5f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60-0x67 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x68-0x6f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70-0x77 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x78-0x7f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x80-0x87 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x88-0x8f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90-0x97 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x98-0x9f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa0-0xa7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa8-0xaf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0-0xb7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb8-0xbf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc0-0xc7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc8-0xcf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0-0xd7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd8-0xdf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe0-0xe7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe8-0xef */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf0-0xf7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf8-0xff */
+};
+
+static const unsigned char charset2upper[256] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x00-0x07 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x08-0x0f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x10-0x17 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x18-0x1f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x20-0x27 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x28-0x2f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30-0x37 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x38-0x3f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x40-0x47 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x48-0x4f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50-0x57 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x58-0x5f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60-0x67 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x68-0x6f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70-0x77 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x78-0x7f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x80-0x87 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x88-0x8f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90-0x97 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x98-0x9f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa0-0xa7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa8-0xaf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0-0xb7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb8-0xbf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc0-0xc7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc8-0xcf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0-0xd7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd8-0xdf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe0-0xe7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe8-0xef */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf0-0xf7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+ const unsigned char *uni2charset;
+ unsigned char cl = uni & 0x00ff;
+ unsigned char ch = (uni & 0xff00) >> 8;
+
+ if (boundlen <= 0)
+ return -ENAMETOOLONG;
+
+ uni2charset = page_uni2charset[ch];
+ if (uni2charset && uni2charset[cl])
+ out[0] = uni2charset[cl];
+ else
+ return -EINVAL;
+ return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+ *uni = charset2uni[*rawstring];
+ if (*uni == 0x0000)
+ return -EINVAL;
+ return 1;
+}
+
+static struct nls_table table = {
+ .charset = "maccroatian",
+ .uni2char = uni2char,
+ .char2uni = char2uni,
+ .charset2lower = charset2lower,
+ .charset2upper = charset2upper,
+ .owner = THIS_MODULE,
+};
+
+static int __init init_nls_maccroatian(void)
+{
+ return register_nls(&table);
+}
+
+static void __exit exit_nls_maccroatian(void)
+{
+ unregister_nls(&table);
+}
+
+module_init(init_nls_maccroatian)
+module_exit(exit_nls_maccroatian)
+
+MODULE_LICENSE("Dual BSD/GPL");
--- /dev/null
+/*
+ * linux/fs/nls/nls_maccyrillic.c
+ *
+ * Charset maccyrillic translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+/*
+ * COPYRIGHT AND PERMISSION NOTICE
+ *
+ * Copyright 1991-2012 Unicode, Inc. All rights reserved. Distributed under
+ * the Terms of Use in http://www.unicode.org/copyright.html.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of the Unicode data files and any associated documentation (the "Data
+ * Files") or Unicode software and any associated documentation (the
+ * "Software") to deal in the Data Files or Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, and/or sell copies of the Data Files or Software, and
+ * to permit persons to whom the Data Files or Software are furnished to do
+ * so, provided that (a) the above copyright notice(s) and this permission
+ * notice appear with all copies of the Data Files or Software, (b) both the
+ * above copyright notice(s) and this permission notice appear in associated
+ * documentation, and (c) there is clear notice in each modified Data File or
+ * in the Software as well as in the documentation associated with the Data
+ * File(s) or Software that the data or software has been modified.
+ *
+ * THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+ * KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+ * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THE DATA FILES OR SOFTWARE.
+ *
+ * Except as contained in this notice, the name of a copyright holder shall
+ * not be used in advertising or otherwise to promote the sale, use or other
+ * dealings in these Data Files or Software without prior written
+ * authorization of the copyright holder.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static const wchar_t charset2uni[256] = {
+ /* 0x00 */
+ 0x0000, 0x0001, 0x0002, 0x0003,
+ 0x0004, 0x0005, 0x0006, 0x0007,
+ 0x0008, 0x0009, 0x000a, 0x000b,
+ 0x000c, 0x000d, 0x000e, 0x000f,
+ /* 0x10 */
+ 0x0010, 0x0011, 0x0012, 0x0013,
+ 0x0014, 0x0015, 0x0016, 0x0017,
+ 0x0018, 0x0019, 0x001a, 0x001b,
+ 0x001c, 0x001d, 0x001e, 0x001f,
+ /* 0x20 */
+ 0x0020, 0x0021, 0x0022, 0x0023,
+ 0x0024, 0x0025, 0x0026, 0x0027,
+ 0x0028, 0x0029, 0x002a, 0x002b,
+ 0x002c, 0x002d, 0x002e, 0x002f,
+ /* 0x30 */
+ 0x0030, 0x0031, 0x0032, 0x0033,
+ 0x0034, 0x0035, 0x0036, 0x0037,
+ 0x0038, 0x0039, 0x003a, 0x003b,
+ 0x003c, 0x003d, 0x003e, 0x003f,
+ /* 0x40 */
+ 0x0040, 0x0041, 0x0042, 0x0043,
+ 0x0044, 0x0045, 0x0046, 0x0047,
+ 0x0048, 0x0049, 0x004a, 0x004b,
+ 0x004c, 0x004d, 0x004e, 0x004f,
+ /* 0x50 */
+ 0x0050, 0x0051, 0x0052, 0x0053,
+ 0x0054, 0x0055, 0x0056, 0x0057,
+ 0x0058, 0x0059, 0x005a, 0x005b,
+ 0x005c, 0x005d, 0x005e, 0x005f,
+ /* 0x60 */
+ 0x0060, 0x0061, 0x0062, 0x0063,
+ 0x0064, 0x0065, 0x0066, 0x0067,
+ 0x0068, 0x0069, 0x006a, 0x006b,
+ 0x006c, 0x006d, 0x006e, 0x006f,
+ /* 0x70 */
+ 0x0070, 0x0071, 0x0072, 0x0073,
+ 0x0074, 0x0075, 0x0076, 0x0077,
+ 0x0078, 0x0079, 0x007a, 0x007b,
+ 0x007c, 0x007d, 0x007e, 0x007f,
+ /* 0x80 */
+ 0x0410, 0x0411, 0x0412, 0x0413,
+ 0x0414, 0x0415, 0x0416, 0x0417,
+ 0x0418, 0x0419, 0x041a, 0x041b,
+ 0x041c, 0x041d, 0x041e, 0x041f,
+ /* 0x90 */
+ 0x0420, 0x0421, 0x0422, 0x0423,
+ 0x0424, 0x0425, 0x0426, 0x0427,
+ 0x0428, 0x0429, 0x042a, 0x042b,
+ 0x042c, 0x042d, 0x042e, 0x042f,
+ /* 0xa0 */
+ 0x2020, 0x00b0, 0x0490, 0x00a3,
+ 0x00a7, 0x2022, 0x00b6, 0x0406,
+ 0x00ae, 0x00a9, 0x2122, 0x0402,
+ 0x0452, 0x2260, 0x0403, 0x0453,
+ /* 0xb0 */
+ 0x221e, 0x00b1, 0x2264, 0x2265,
+ 0x0456, 0x00b5, 0x0491, 0x0408,
+ 0x0404, 0x0454, 0x0407, 0x0457,
+ 0x0409, 0x0459, 0x040a, 0x045a,
+ /* 0xc0 */
+ 0x0458, 0x0405, 0x00ac, 0x221a,
+ 0x0192, 0x2248, 0x2206, 0x00ab,
+ 0x00bb, 0x2026, 0x00a0, 0x040b,
+ 0x045b, 0x040c, 0x045c, 0x0455,
+ /* 0xd0 */
+ 0x2013, 0x2014, 0x201c, 0x201d,
+ 0x2018, 0x2019, 0x00f7, 0x201e,
+ 0x040e, 0x045e, 0x040f, 0x045f,
+ 0x2116, 0x0401, 0x0451, 0x044f,
+ /* 0xe0 */
+ 0x0430, 0x0431, 0x0432, 0x0433,
+ 0x0434, 0x0435, 0x0436, 0x0437,
+ 0x0438, 0x0439, 0x043a, 0x043b,
+ 0x043c, 0x043d, 0x043e, 0x043f,
+ /* 0xf0 */
+ 0x0440, 0x0441, 0x0442, 0x0443,
+ 0x0444, 0x0445, 0x0446, 0x0447,
+ 0x0448, 0x0449, 0x044a, 0x044b,
+ 0x044c, 0x044d, 0x044e, 0x20ac,
+};
+
+static const unsigned char page00[256] = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+ 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+ 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+ 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+ 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+ 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+ 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+ 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+ 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0xca, 0x00, 0x00, 0xa3, 0x00, 0x00, 0x00, 0xa4, /* 0xa0-0xa7 */
+ 0x00, 0xa9, 0x00, 0xc7, 0xc2, 0x00, 0xa8, 0x00, /* 0xa8-0xaf */
+ 0xa1, 0xb1, 0x00, 0x00, 0x00, 0xb5, 0xa6, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0xc8, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd6, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page01[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0xc4, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page04[256] = {
+ 0x00, 0xdd, 0xab, 0xae, 0xb8, 0xc1, 0xa7, 0xba, /* 0x00-0x07 */
+ 0xb7, 0xbc, 0xbe, 0xcb, 0xcd, 0x00, 0xd8, 0xda, /* 0x08-0x0f */
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x10-0x17 */
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x18-0x1f */
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x20-0x27 */
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x28-0x2f */
+ 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0x30-0x37 */
+ 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0x38-0x3f */
+ 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0x40-0x47 */
+ 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xdf, /* 0x48-0x4f */
+ 0x00, 0xde, 0xac, 0xaf, 0xb9, 0xcf, 0xb4, 0xbb, /* 0x50-0x57 */
+ 0xc0, 0xbd, 0xbf, 0xcc, 0xce, 0x00, 0xd9, 0xdb, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0xa2, 0xb6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page20[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0xd0, 0xd1, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0xd4, 0xd5, 0x00, 0x00, 0xd2, 0xd3, 0xd7, 0x00, /* 0x18-0x1f */
+ 0xa0, 0x00, 0xa5, 0x00, 0x00, 0x00, 0xc9, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page21[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xdc, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0xaa, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page22[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, 0xb0, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0xc5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0xad, 0x00, 0x00, 0x00, 0xb2, 0xb3, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char *const page_uni2charset[256] = {
+ page00, page01, NULL, NULL, page04, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ page20, page21, page22, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+};
+
+static const unsigned char charset2lower[256] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x00-0x07 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x08-0x0f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x10-0x17 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x18-0x1f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x20-0x27 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x28-0x2f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30-0x37 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x38-0x3f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x40-0x47 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x48-0x4f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50-0x57 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x58-0x5f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60-0x67 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x68-0x6f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70-0x77 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x78-0x7f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x80-0x87 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x88-0x8f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90-0x97 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x98-0x9f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa0-0xa7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa8-0xaf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0-0xb7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb8-0xbf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc0-0xc7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc8-0xcf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0-0xd7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd8-0xdf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe0-0xe7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe8-0xef */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf0-0xf7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf8-0xff */
+};
+
+static const unsigned char charset2upper[256] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x00-0x07 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x08-0x0f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x10-0x17 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x18-0x1f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x20-0x27 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x28-0x2f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30-0x37 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x38-0x3f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x40-0x47 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x48-0x4f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50-0x57 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x58-0x5f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60-0x67 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x68-0x6f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70-0x77 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x78-0x7f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x80-0x87 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x88-0x8f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90-0x97 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x98-0x9f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa0-0xa7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa8-0xaf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0-0xb7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb8-0xbf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc0-0xc7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc8-0xcf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0-0xd7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd8-0xdf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe0-0xe7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe8-0xef */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf0-0xf7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+ const unsigned char *uni2charset;
+ unsigned char cl = uni & 0x00ff;
+ unsigned char ch = (uni & 0xff00) >> 8;
+
+ if (boundlen <= 0)
+ return -ENAMETOOLONG;
+
+ uni2charset = page_uni2charset[ch];
+ if (uni2charset && uni2charset[cl])
+ out[0] = uni2charset[cl];
+ else
+ return -EINVAL;
+ return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+ *uni = charset2uni[*rawstring];
+ if (*uni == 0x0000)
+ return -EINVAL;
+ return 1;
+}
+
+static struct nls_table table = {
+ .charset = "maccyrillic",
+ .uni2char = uni2char,
+ .char2uni = char2uni,
+ .charset2lower = charset2lower,
+ .charset2upper = charset2upper,
+ .owner = THIS_MODULE,
+};
+
+static int __init init_nls_maccyrillic(void)
+{
+ return register_nls(&table);
+}
+
+static void __exit exit_nls_maccyrillic(void)
+{
+ unregister_nls(&table);
+}
+
+module_init(init_nls_maccyrillic)
+module_exit(exit_nls_maccyrillic)
+
+MODULE_LICENSE("Dual BSD/GPL");
--- /dev/null
+/*
+ * linux/fs/nls/nls_macgaelic.c
+ *
+ * Charset macgaelic translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+/*
+ * COPYRIGHT AND PERMISSION NOTICE
+ *
+ * Copyright 1991-2012 Unicode, Inc. All rights reserved. Distributed under
+ * the Terms of Use in http://www.unicode.org/copyright.html.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of the Unicode data files and any associated documentation (the "Data
+ * Files") or Unicode software and any associated documentation (the
+ * "Software") to deal in the Data Files or Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, and/or sell copies of the Data Files or Software, and
+ * to permit persons to whom the Data Files or Software are furnished to do
+ * so, provided that (a) the above copyright notice(s) and this permission
+ * notice appear with all copies of the Data Files or Software, (b) both the
+ * above copyright notice(s) and this permission notice appear in associated
+ * documentation, and (c) there is clear notice in each modified Data File or
+ * in the Software as well as in the documentation associated with the Data
+ * File(s) or Software that the data or software has been modified.
+ *
+ * THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+ * KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+ * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THE DATA FILES OR SOFTWARE.
+ *
+ * Except as contained in this notice, the name of a copyright holder shall
+ * not be used in advertising or otherwise to promote the sale, use or other
+ * dealings in these Data Files or Software without prior written
+ * authorization of the copyright holder.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static const wchar_t charset2uni[256] = {
+ /* 0x00 */
+ 0x0000, 0x0001, 0x0002, 0x0003,
+ 0x0004, 0x0005, 0x0006, 0x0007,
+ 0x0008, 0x0009, 0x000a, 0x000b,
+ 0x000c, 0x000d, 0x000e, 0x000f,
+ /* 0x10 */
+ 0x0010, 0x0011, 0x0012, 0x0013,
+ 0x0014, 0x0015, 0x0016, 0x0017,
+ 0x0018, 0x0019, 0x001a, 0x001b,
+ 0x001c, 0x001d, 0x001e, 0x001f,
+ /* 0x20 */
+ 0x0020, 0x0021, 0x0022, 0x0023,
+ 0x0024, 0x0025, 0x0026, 0x0027,
+ 0x0028, 0x0029, 0x002a, 0x002b,
+ 0x002c, 0x002d, 0x002e, 0x002f,
+ /* 0x30 */
+ 0x0030, 0x0031, 0x0032, 0x0033,
+ 0x0034, 0x0035, 0x0036, 0x0037,
+ 0x0038, 0x0039, 0x003a, 0x003b,
+ 0x003c, 0x003d, 0x003e, 0x003f,
+ /* 0x40 */
+ 0x0040, 0x0041, 0x0042, 0x0043,
+ 0x0044, 0x0045, 0x0046, 0x0047,
+ 0x0048, 0x0049, 0x004a, 0x004b,
+ 0x004c, 0x004d, 0x004e, 0x004f,
+ /* 0x50 */
+ 0x0050, 0x0051, 0x0052, 0x0053,
+ 0x0054, 0x0055, 0x0056, 0x0057,
+ 0x0058, 0x0059, 0x005a, 0x005b,
+ 0x005c, 0x005d, 0x005e, 0x005f,
+ /* 0x60 */
+ 0x0060, 0x0061, 0x0062, 0x0063,
+ 0x0064, 0x0065, 0x0066, 0x0067,
+ 0x0068, 0x0069, 0x006a, 0x006b,
+ 0x006c, 0x006d, 0x006e, 0x006f,
+ /* 0x70 */
+ 0x0070, 0x0071, 0x0072, 0x0073,
+ 0x0074, 0x0075, 0x0076, 0x0077,
+ 0x0078, 0x0079, 0x007a, 0x007b,
+ 0x007c, 0x007d, 0x007e, 0x007f,
+ /* 0x80 */
+ 0x00c4, 0x00c5, 0x00c7, 0x00c9,
+ 0x00d1, 0x00d6, 0x00dc, 0x00e1,
+ 0x00e0, 0x00e2, 0x00e4, 0x00e3,
+ 0x00e5, 0x00e7, 0x00e9, 0x00e8,
+ /* 0x90 */
+ 0x00ea, 0x00eb, 0x00ed, 0x00ec,
+ 0x00ee, 0x00ef, 0x00f1, 0x00f3,
+ 0x00f2, 0x00f4, 0x00f6, 0x00f5,
+ 0x00fa, 0x00f9, 0x00fb, 0x00fc,
+ /* 0xa0 */
+ 0x2020, 0x00b0, 0x00a2, 0x00a3,
+ 0x00a7, 0x2022, 0x00b6, 0x00df,
+ 0x00ae, 0x00a9, 0x2122, 0x00b4,
+ 0x00a8, 0x2260, 0x00c6, 0x00d8,
+ /* 0xb0 */
+ 0x1e02, 0x00b1, 0x2264, 0x2265,
+ 0x1e03, 0x010a, 0x010b, 0x1e0a,
+ 0x1e0b, 0x1e1e, 0x1e1f, 0x0120,
+ 0x0121, 0x1e40, 0x00e6, 0x00f8,
+ /* 0xc0 */
+ 0x1e41, 0x1e56, 0x1e57, 0x027c,
+ 0x0192, 0x017f, 0x1e60, 0x00ab,
+ 0x00bb, 0x2026, 0x00a0, 0x00c0,
+ 0x00c3, 0x00d5, 0x0152, 0x0153,
+ /* 0xd0 */
+ 0x2013, 0x2014, 0x201c, 0x201d,
+ 0x2018, 0x2019, 0x1e61, 0x1e9b,
+ 0x00ff, 0x0178, 0x1e6a, 0x20ac,
+ 0x2039, 0x203a, 0x0176, 0x0177,
+ /* 0xe0 */
+ 0x1e6b, 0x00b7, 0x1ef2, 0x1ef3,
+ 0x204a, 0x00c2, 0x00ca, 0x00c1,
+ 0x00cb, 0x00c8, 0x00cd, 0x00ce,
+ 0x00cf, 0x00cc, 0x00d3, 0x00d4,
+ /* 0xf0 */
+ 0x2663, 0x00d2, 0x00da, 0x00db,
+ 0x00d9, 0x0131, 0x00dd, 0x00fd,
+ 0x0174, 0x0175, 0x1e84, 0x1e85,
+ 0x1e80, 0x1e81, 0x1e82, 0x1e83,
+};
+
+static const unsigned char page00[256] = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+ 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+ 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+ 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+ 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+ 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+ 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+ 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+ 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0xca, 0x00, 0xa2, 0xa3, 0x00, 0x00, 0x00, 0xa4, /* 0xa0-0xa7 */
+ 0xac, 0xa9, 0x00, 0xc7, 0x00, 0x00, 0xa8, 0x00, /* 0xa8-0xaf */
+ 0xa1, 0xb1, 0x00, 0x00, 0xab, 0x00, 0xa6, 0xe1, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0xc8, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0xcb, 0xe7, 0xe5, 0xcc, 0x80, 0x81, 0xae, 0x82, /* 0xc0-0xc7 */
+ 0xe9, 0x83, 0xe6, 0xe8, 0xed, 0xea, 0xeb, 0xec, /* 0xc8-0xcf */
+ 0x00, 0x84, 0xf1, 0xee, 0xef, 0xcd, 0x85, 0x00, /* 0xd0-0xd7 */
+ 0xaf, 0xf4, 0xf2, 0xf3, 0x86, 0xf6, 0x00, 0xa7, /* 0xd8-0xdf */
+ 0x88, 0x87, 0x89, 0x8b, 0x8a, 0x8c, 0xbe, 0x8d, /* 0xe0-0xe7 */
+ 0x8f, 0x8e, 0x90, 0x91, 0x93, 0x92, 0x94, 0x95, /* 0xe8-0xef */
+ 0x00, 0x96, 0x98, 0x97, 0x99, 0x9b, 0x9a, 0x00, /* 0xf0-0xf7 */
+ 0xbf, 0x9d, 0x9c, 0x9e, 0x9f, 0xf7, 0x00, 0xd8, /* 0xf8-0xff */
+};
+
+static const unsigned char page01[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0xb5, 0xb6, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0xbb, 0xbc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0xf5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0xce, 0xcf, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0xf8, 0xf9, 0xde, 0xdf, /* 0x70-0x77 */
+ 0xd9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc5, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0xc4, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page02[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page1e[256] = {
+ 0x00, 0x00, 0xb0, 0xb4, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0xb7, 0xb8, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb9, 0xba, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0xbd, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc1, 0xc2, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0xc6, 0xd6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0xda, 0xe0, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0xfc, 0xfd, 0xfe, 0xff, 0xfa, 0xfb, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0xd7, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0xe2, 0xe3, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page20[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0xd0, 0xd1, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0xd4, 0xd5, 0x00, 0x00, 0xd2, 0xd3, 0x00, 0x00, /* 0x18-0x1f */
+ 0xa0, 0x00, 0xa5, 0x00, 0x00, 0x00, 0xc9, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0xdc, 0xdd, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0xe4, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0xdb, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page21[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0xaa, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page22[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0xad, 0x00, 0x00, 0x00, 0xb2, 0xb3, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page26[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0xf0, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char *const page_uni2charset[256] = {
+ page00, page01, page02, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, page1e, NULL,
+ page20, page21, page22, NULL, NULL, NULL, page26, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+};
+
+static const unsigned char charset2lower[256] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x00-0x07 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x08-0x0f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x10-0x17 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x18-0x1f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x20-0x27 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x28-0x2f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30-0x37 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x38-0x3f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x40-0x47 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x48-0x4f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50-0x57 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x58-0x5f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60-0x67 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x68-0x6f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70-0x77 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x78-0x7f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x80-0x87 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x88-0x8f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90-0x97 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x98-0x9f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa0-0xa7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa8-0xaf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0-0xb7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb8-0xbf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc0-0xc7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc8-0xcf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0-0xd7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd8-0xdf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe0-0xe7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe8-0xef */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf0-0xf7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf8-0xff */
+};
+
+static const unsigned char charset2upper[256] = {
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x00-0x07 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x08-0x0f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x10-0x17 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x18-0x1f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x20-0x27 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x28-0x2f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x30-0x37 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x38-0x3f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x40-0x47 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x48-0x4f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x50-0x57 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x58-0x5f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x60-0x67 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x68-0x6f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x70-0x77 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x78-0x7f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x80-0x87 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x88-0x8f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x90-0x97 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x98-0x9f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xa0-0xa7 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xa8-0xaf */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xb0-0xb7 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xb8-0xbf */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xc0-0xc7 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xc8-0xcf */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xd0-0xd7 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xd8-0xdf */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xe0-0xe7 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xe8-0xef */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xf0-0xf7 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+ const unsigned char *uni2charset;
+ unsigned char cl = uni & 0x00ff;
+ unsigned char ch = (uni & 0xff00) >> 8;
+
+ if (boundlen <= 0)
+ return -ENAMETOOLONG;
+
+ uni2charset = page_uni2charset[ch];
+ if (uni2charset && uni2charset[cl])
+ out[0] = uni2charset[cl];
+ else
+ return -EINVAL;
+ return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+ *uni = charset2uni[*rawstring];
+ if (*uni == 0x0000)
+ return -EINVAL;
+ return 1;
+}
+
+static struct nls_table table = {
+ .charset = "macgaelic",
+ .uni2char = uni2char,
+ .char2uni = char2uni,
+ .charset2lower = charset2lower,
+ .charset2upper = charset2upper,
+ .owner = THIS_MODULE,
+};
+
+static int __init init_nls_macgaelic(void)
+{
+ return register_nls(&table);
+}
+
+static void __exit exit_nls_macgaelic(void)
+{
+ unregister_nls(&table);
+}
+
+module_init(init_nls_macgaelic)
+module_exit(exit_nls_macgaelic)
+
+MODULE_LICENSE("Dual BSD/GPL");
--- /dev/null
+/*
+ * linux/fs/nls/nls_macgreek.c
+ *
+ * Charset macgreek translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+/*
+ * COPYRIGHT AND PERMISSION NOTICE
+ *
+ * Copyright 1991-2012 Unicode, Inc. All rights reserved. Distributed under
+ * the Terms of Use in http://www.unicode.org/copyright.html.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of the Unicode data files and any associated documentation (the "Data
+ * Files") or Unicode software and any associated documentation (the
+ * "Software") to deal in the Data Files or Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, and/or sell copies of the Data Files or Software, and
+ * to permit persons to whom the Data Files or Software are furnished to do
+ * so, provided that (a) the above copyright notice(s) and this permission
+ * notice appear with all copies of the Data Files or Software, (b) both the
+ * above copyright notice(s) and this permission notice appear in associated
+ * documentation, and (c) there is clear notice in each modified Data File or
+ * in the Software as well as in the documentation associated with the Data
+ * File(s) or Software that the data or software has been modified.
+ *
+ * THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+ * KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+ * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THE DATA FILES OR SOFTWARE.
+ *
+ * Except as contained in this notice, the name of a copyright holder shall
+ * not be used in advertising or otherwise to promote the sale, use or other
+ * dealings in these Data Files or Software without prior written
+ * authorization of the copyright holder.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static const wchar_t charset2uni[256] = {
+ /* 0x00 */
+ 0x0000, 0x0001, 0x0002, 0x0003,
+ 0x0004, 0x0005, 0x0006, 0x0007,
+ 0x0008, 0x0009, 0x000a, 0x000b,
+ 0x000c, 0x000d, 0x000e, 0x000f,
+ /* 0x10 */
+ 0x0010, 0x0011, 0x0012, 0x0013,
+ 0x0014, 0x0015, 0x0016, 0x0017,
+ 0x0018, 0x0019, 0x001a, 0x001b,
+ 0x001c, 0x001d, 0x001e, 0x001f,
+ /* 0x20 */
+ 0x0020, 0x0021, 0x0022, 0x0023,
+ 0x0024, 0x0025, 0x0026, 0x0027,
+ 0x0028, 0x0029, 0x002a, 0x002b,
+ 0x002c, 0x002d, 0x002e, 0x002f,
+ /* 0x30 */
+ 0x0030, 0x0031, 0x0032, 0x0033,
+ 0x0034, 0x0035, 0x0036, 0x0037,
+ 0x0038, 0x0039, 0x003a, 0x003b,
+ 0x003c, 0x003d, 0x003e, 0x003f,
+ /* 0x40 */
+ 0x0040, 0x0041, 0x0042, 0x0043,
+ 0x0044, 0x0045, 0x0046, 0x0047,
+ 0x0048, 0x0049, 0x004a, 0x004b,
+ 0x004c, 0x004d, 0x004e, 0x004f,
+ /* 0x50 */
+ 0x0050, 0x0051, 0x0052, 0x0053,
+ 0x0054, 0x0055, 0x0056, 0x0057,
+ 0x0058, 0x0059, 0x005a, 0x005b,
+ 0x005c, 0x005d, 0x005e, 0x005f,
+ /* 0x60 */
+ 0x0060, 0x0061, 0x0062, 0x0063,
+ 0x0064, 0x0065, 0x0066, 0x0067,
+ 0x0068, 0x0069, 0x006a, 0x006b,
+ 0x006c, 0x006d, 0x006e, 0x006f,
+ /* 0x70 */
+ 0x0070, 0x0071, 0x0072, 0x0073,
+ 0x0074, 0x0075, 0x0076, 0x0077,
+ 0x0078, 0x0079, 0x007a, 0x007b,
+ 0x007c, 0x007d, 0x007e, 0x007f,
+ /* 0x80 */
+ 0x00c4, 0x00b9, 0x00b2, 0x00c9,
+ 0x00b3, 0x00d6, 0x00dc, 0x0385,
+ 0x00e0, 0x00e2, 0x00e4, 0x0384,
+ 0x00a8, 0x00e7, 0x00e9, 0x00e8,
+ /* 0x90 */
+ 0x00ea, 0x00eb, 0x00a3, 0x2122,
+ 0x00ee, 0x00ef, 0x2022, 0x00bd,
+ 0x2030, 0x00f4, 0x00f6, 0x00a6,
+ 0x20ac, 0x00f9, 0x00fb, 0x00fc,
+ /* 0xa0 */
+ 0x2020, 0x0393, 0x0394, 0x0398,
+ 0x039b, 0x039e, 0x03a0, 0x00df,
+ 0x00ae, 0x00a9, 0x03a3, 0x03aa,
+ 0x00a7, 0x2260, 0x00b0, 0x00b7,
+ /* 0xb0 */
+ 0x0391, 0x00b1, 0x2264, 0x2265,
+ 0x00a5, 0x0392, 0x0395, 0x0396,
+ 0x0397, 0x0399, 0x039a, 0x039c,
+ 0x03a6, 0x03ab, 0x03a8, 0x03a9,
+ /* 0xc0 */
+ 0x03ac, 0x039d, 0x00ac, 0x039f,
+ 0x03a1, 0x2248, 0x03a4, 0x00ab,
+ 0x00bb, 0x2026, 0x00a0, 0x03a5,
+ 0x03a7, 0x0386, 0x0388, 0x0153,
+ /* 0xd0 */
+ 0x2013, 0x2015, 0x201c, 0x201d,
+ 0x2018, 0x2019, 0x00f7, 0x0389,
+ 0x038a, 0x038c, 0x038e, 0x03ad,
+ 0x03ae, 0x03af, 0x03cc, 0x038f,
+ /* 0xe0 */
+ 0x03cd, 0x03b1, 0x03b2, 0x03c8,
+ 0x03b4, 0x03b5, 0x03c6, 0x03b3,
+ 0x03b7, 0x03b9, 0x03be, 0x03ba,
+ 0x03bb, 0x03bc, 0x03bd, 0x03bf,
+ /* 0xf0 */
+ 0x03c0, 0x03ce, 0x03c1, 0x03c3,
+ 0x03c4, 0x03b8, 0x03c9, 0x03c2,
+ 0x03c7, 0x03c5, 0x03b6, 0x03ca,
+ 0x03cb, 0x0390, 0x03b0, 0x00ad,
+};
+
+static const unsigned char page00[256] = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+ 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+ 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+ 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+ 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+ 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+ 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+ 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+ 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0xca, 0x00, 0x00, 0x92, 0x00, 0xb4, 0x9b, 0xac, /* 0xa0-0xa7 */
+ 0x8c, 0xa9, 0x00, 0xc7, 0xc2, 0xff, 0xa8, 0x00, /* 0xa8-0xaf */
+ 0xae, 0xb1, 0x82, 0x84, 0x00, 0x00, 0x00, 0xaf, /* 0xb0-0xb7 */
+ 0x00, 0x81, 0x00, 0xc8, 0x00, 0x97, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x83, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x85, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x86, 0x00, 0x00, 0xa7, /* 0xd8-0xdf */
+ 0x88, 0x00, 0x89, 0x00, 0x8a, 0x00, 0x00, 0x8d, /* 0xe0-0xe7 */
+ 0x8f, 0x8e, 0x90, 0x91, 0x00, 0x00, 0x94, 0x95, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x99, 0x00, 0x9a, 0xd6, /* 0xf0-0xf7 */
+ 0x00, 0x9d, 0x00, 0x9e, 0x9f, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page01[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0xcf, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page03[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x8b, 0x87, 0xcd, 0x00, /* 0x80-0x87 */
+ 0xce, 0xd7, 0xd8, 0x00, 0xd9, 0x00, 0xda, 0xdf, /* 0x88-0x8f */
+ 0xfd, 0xb0, 0xb5, 0xa1, 0xa2, 0xb6, 0xb7, 0xb8, /* 0x90-0x97 */
+ 0xa3, 0xb9, 0xba, 0xa4, 0xbb, 0xc1, 0xa5, 0xc3, /* 0x98-0x9f */
+ 0xa6, 0xc4, 0x00, 0xaa, 0xc6, 0xcb, 0xbc, 0xcc, /* 0xa0-0xa7 */
+ 0xbe, 0xbf, 0xab, 0xbd, 0xc0, 0xdb, 0xdc, 0xdd, /* 0xa8-0xaf */
+ 0xfe, 0xe1, 0xe2, 0xe7, 0xe4, 0xe5, 0xfa, 0xe8, /* 0xb0-0xb7 */
+ 0xf5, 0xe9, 0xeb, 0xec, 0xed, 0xee, 0xea, 0xef, /* 0xb8-0xbf */
+ 0xf0, 0xf2, 0xf7, 0xf3, 0xf4, 0xf9, 0xe6, 0xf8, /* 0xc0-0xc7 */
+ 0xe3, 0xf6, 0xfb, 0xfc, 0xde, 0xe0, 0xf1, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page20[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0xd0, 0x00, 0xd1, 0x00, 0x00, /* 0x10-0x17 */
+ 0xd4, 0xd5, 0x00, 0x00, 0xd2, 0xd3, 0x00, 0x00, /* 0x18-0x1f */
+ 0xa0, 0x00, 0x96, 0x00, 0x00, 0x00, 0xc9, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x98, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x9c, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page21[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x93, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page22[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0xc5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0xad, 0x00, 0x00, 0x00, 0xb2, 0xb3, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char *const page_uni2charset[256] = {
+ page00, page01, NULL, page03, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ page20, page21, page22, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+};
+
+static const unsigned char charset2lower[256] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x00-0x07 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x08-0x0f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x10-0x17 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x18-0x1f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x20-0x27 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x28-0x2f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30-0x37 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x38-0x3f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x40-0x47 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x48-0x4f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50-0x57 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x58-0x5f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60-0x67 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x68-0x6f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70-0x77 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x78-0x7f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x80-0x87 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x88-0x8f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90-0x97 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x98-0x9f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa0-0xa7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa8-0xaf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0-0xb7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb8-0xbf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc0-0xc7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc8-0xcf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0-0xd7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd8-0xdf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe0-0xe7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe8-0xef */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf0-0xf7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf8-0xff */
+};
+
+static const unsigned char charset2upper[256] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x00-0x07 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x08-0x0f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x10-0x17 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x18-0x1f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x20-0x27 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x28-0x2f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30-0x37 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x38-0x3f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x40-0x47 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x48-0x4f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50-0x57 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x58-0x5f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60-0x67 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x68-0x6f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70-0x77 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x78-0x7f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x80-0x87 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x88-0x8f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90-0x97 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x98-0x9f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa0-0xa7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa8-0xaf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0-0xb7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb8-0xbf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc0-0xc7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc8-0xcf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0-0xd7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd8-0xdf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe0-0xe7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe8-0xef */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf0-0xf7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+ const unsigned char *uni2charset;
+ unsigned char cl = uni & 0x00ff;
+ unsigned char ch = (uni & 0xff00) >> 8;
+
+ if (boundlen <= 0)
+ return -ENAMETOOLONG;
+
+ uni2charset = page_uni2charset[ch];
+ if (uni2charset && uni2charset[cl])
+ out[0] = uni2charset[cl];
+ else
+ return -EINVAL;
+ return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+ *uni = charset2uni[*rawstring];
+ if (*uni == 0x0000)
+ return -EINVAL;
+ return 1;
+}
+
+static struct nls_table table = {
+ .charset = "macgreek",
+ .uni2char = uni2char,
+ .char2uni = char2uni,
+ .charset2lower = charset2lower,
+ .charset2upper = charset2upper,
+ .owner = THIS_MODULE,
+};
+
+static int __init init_nls_macgreek(void)
+{
+ return register_nls(&table);
+}
+
+static void __exit exit_nls_macgreek(void)
+{
+ unregister_nls(&table);
+}
+
+module_init(init_nls_macgreek)
+module_exit(exit_nls_macgreek)
+
+MODULE_LICENSE("Dual BSD/GPL");
--- /dev/null
+/*
+ * linux/fs/nls/nls_maciceland.c
+ *
+ * Charset maciceland translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+/*
+ * COPYRIGHT AND PERMISSION NOTICE
+ *
+ * Copyright 1991-2012 Unicode, Inc. All rights reserved. Distributed under
+ * the Terms of Use in http://www.unicode.org/copyright.html.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of the Unicode data files and any associated documentation (the "Data
+ * Files") or Unicode software and any associated documentation (the
+ * "Software") to deal in the Data Files or Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, and/or sell copies of the Data Files or Software, and
+ * to permit persons to whom the Data Files or Software are furnished to do
+ * so, provided that (a) the above copyright notice(s) and this permission
+ * notice appear with all copies of the Data Files or Software, (b) both the
+ * above copyright notice(s) and this permission notice appear in associated
+ * documentation, and (c) there is clear notice in each modified Data File or
+ * in the Software as well as in the documentation associated with the Data
+ * File(s) or Software that the data or software has been modified.
+ *
+ * THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+ * KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+ * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THE DATA FILES OR SOFTWARE.
+ *
+ * Except as contained in this notice, the name of a copyright holder shall
+ * not be used in advertising or otherwise to promote the sale, use or other
+ * dealings in these Data Files or Software without prior written
+ * authorization of the copyright holder.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static const wchar_t charset2uni[256] = {
+ /* 0x00 */
+ 0x0000, 0x0001, 0x0002, 0x0003,
+ 0x0004, 0x0005, 0x0006, 0x0007,
+ 0x0008, 0x0009, 0x000a, 0x000b,
+ 0x000c, 0x000d, 0x000e, 0x000f,
+ /* 0x10 */
+ 0x0010, 0x0011, 0x0012, 0x0013,
+ 0x0014, 0x0015, 0x0016, 0x0017,
+ 0x0018, 0x0019, 0x001a, 0x001b,
+ 0x001c, 0x001d, 0x001e, 0x001f,
+ /* 0x20 */
+ 0x0020, 0x0021, 0x0022, 0x0023,
+ 0x0024, 0x0025, 0x0026, 0x0027,
+ 0x0028, 0x0029, 0x002a, 0x002b,
+ 0x002c, 0x002d, 0x002e, 0x002f,
+ /* 0x30 */
+ 0x0030, 0x0031, 0x0032, 0x0033,
+ 0x0034, 0x0035, 0x0036, 0x0037,
+ 0x0038, 0x0039, 0x003a, 0x003b,
+ 0x003c, 0x003d, 0x003e, 0x003f,
+ /* 0x40 */
+ 0x0040, 0x0041, 0x0042, 0x0043,
+ 0x0044, 0x0045, 0x0046, 0x0047,
+ 0x0048, 0x0049, 0x004a, 0x004b,
+ 0x004c, 0x004d, 0x004e, 0x004f,
+ /* 0x50 */
+ 0x0050, 0x0051, 0x0052, 0x0053,
+ 0x0054, 0x0055, 0x0056, 0x0057,
+ 0x0058, 0x0059, 0x005a, 0x005b,
+ 0x005c, 0x005d, 0x005e, 0x005f,
+ /* 0x60 */
+ 0x0060, 0x0061, 0x0062, 0x0063,
+ 0x0064, 0x0065, 0x0066, 0x0067,
+ 0x0068, 0x0069, 0x006a, 0x006b,
+ 0x006c, 0x006d, 0x006e, 0x006f,
+ /* 0x70 */
+ 0x0070, 0x0071, 0x0072, 0x0073,
+ 0x0074, 0x0075, 0x0076, 0x0077,
+ 0x0078, 0x0079, 0x007a, 0x007b,
+ 0x007c, 0x007d, 0x007e, 0x007f,
+ /* 0x80 */
+ 0x00c4, 0x00c5, 0x00c7, 0x00c9,
+ 0x00d1, 0x00d6, 0x00dc, 0x00e1,
+ 0x00e0, 0x00e2, 0x00e4, 0x00e3,
+ 0x00e5, 0x00e7, 0x00e9, 0x00e8,
+ /* 0x90 */
+ 0x00ea, 0x00eb, 0x00ed, 0x00ec,
+ 0x00ee, 0x00ef, 0x00f1, 0x00f3,
+ 0x00f2, 0x00f4, 0x00f6, 0x00f5,
+ 0x00fa, 0x00f9, 0x00fb, 0x00fc,
+ /* 0xa0 */
+ 0x00dd, 0x00b0, 0x00a2, 0x00a3,
+ 0x00a7, 0x2022, 0x00b6, 0x00df,
+ 0x00ae, 0x00a9, 0x2122, 0x00b4,
+ 0x00a8, 0x2260, 0x00c6, 0x00d8,
+ /* 0xb0 */
+ 0x221e, 0x00b1, 0x2264, 0x2265,
+ 0x00a5, 0x00b5, 0x2202, 0x2211,
+ 0x220f, 0x03c0, 0x222b, 0x00aa,
+ 0x00ba, 0x03a9, 0x00e6, 0x00f8,
+ /* 0xc0 */
+ 0x00bf, 0x00a1, 0x00ac, 0x221a,
+ 0x0192, 0x2248, 0x2206, 0x00ab,
+ 0x00bb, 0x2026, 0x00a0, 0x00c0,
+ 0x00c3, 0x00d5, 0x0152, 0x0153,
+ /* 0xd0 */
+ 0x2013, 0x2014, 0x201c, 0x201d,
+ 0x2018, 0x2019, 0x00f7, 0x25ca,
+ 0x00ff, 0x0178, 0x2044, 0x20ac,
+ 0x00d0, 0x00f0, 0x00de, 0x00fe,
+ /* 0xe0 */
+ 0x00fd, 0x00b7, 0x201a, 0x201e,
+ 0x2030, 0x00c2, 0x00ca, 0x00c1,
+ 0x00cb, 0x00c8, 0x00cd, 0x00ce,
+ 0x00cf, 0x00cc, 0x00d3, 0x00d4,
+ /* 0xf0 */
+ 0xf8ff, 0x00d2, 0x00da, 0x00db,
+ 0x00d9, 0x0131, 0x02c6, 0x02dc,
+ 0x00af, 0x02d8, 0x02d9, 0x02da,
+ 0x00b8, 0x02dd, 0x02db, 0x02c7,
+};
+
+static const unsigned char page00[256] = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+ 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+ 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+ 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+ 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+ 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+ 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+ 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+ 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0xca, 0xc1, 0xa2, 0xa3, 0x00, 0xb4, 0x00, 0xa4, /* 0xa0-0xa7 */
+ 0xac, 0xa9, 0xbb, 0xc7, 0xc2, 0x00, 0xa8, 0xf8, /* 0xa8-0xaf */
+ 0xa1, 0xb1, 0x00, 0x00, 0xab, 0xb5, 0xa6, 0xe1, /* 0xb0-0xb7 */
+ 0xfc, 0x00, 0xbc, 0xc8, 0x00, 0x00, 0x00, 0xc0, /* 0xb8-0xbf */
+ 0xcb, 0xe7, 0xe5, 0xcc, 0x80, 0x81, 0xae, 0x82, /* 0xc0-0xc7 */
+ 0xe9, 0x83, 0xe6, 0xe8, 0xed, 0xea, 0xeb, 0xec, /* 0xc8-0xcf */
+ 0xdc, 0x84, 0xf1, 0xee, 0xef, 0xcd, 0x85, 0x00, /* 0xd0-0xd7 */
+ 0xaf, 0xf4, 0xf2, 0xf3, 0x86, 0xa0, 0xde, 0xa7, /* 0xd8-0xdf */
+ 0x88, 0x87, 0x89, 0x8b, 0x8a, 0x8c, 0xbe, 0x8d, /* 0xe0-0xe7 */
+ 0x8f, 0x8e, 0x90, 0x91, 0x93, 0x92, 0x94, 0x95, /* 0xe8-0xef */
+ 0xdd, 0x96, 0x98, 0x97, 0x99, 0x9b, 0x9a, 0xd6, /* 0xf0-0xf7 */
+ 0xbf, 0x9d, 0x9c, 0x9e, 0x9f, 0xe0, 0xdf, 0xd8, /* 0xf8-0xff */
+};
+
+static const unsigned char page01[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0xf5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0xce, 0xcf, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0xd9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0xc4, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page02[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf6, 0xff, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0xf9, 0xfa, 0xfb, 0xfe, 0xf7, 0xfd, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page03[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0xbd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0xb9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page20[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0xd0, 0xd1, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0xd4, 0xd5, 0xe2, 0x00, 0xd2, 0xd3, 0xe3, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0xa5, 0x00, 0x00, 0x00, 0xc9, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0xe4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0xdb, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page21[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0xaa, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page22[256] = {
+ 0x00, 0x00, 0xb6, 0x00, 0x00, 0x00, 0xc6, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb8, /* 0x08-0x0f */
+ 0x00, 0xb7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, 0xb0, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0xba, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0xc5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0xad, 0x00, 0x00, 0x00, 0xb2, 0xb3, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page25[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0xd7, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char pagef8[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, /* 0xf8-0xff */
+};
+
+static const unsigned char *const page_uni2charset[256] = {
+ page00, page01, page02, page03, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ page20, page21, page22, NULL, NULL, page25, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ pagef8, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+};
+
+static const unsigned char charset2lower[256] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x00-0x07 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x08-0x0f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x10-0x17 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x18-0x1f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x20-0x27 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x28-0x2f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30-0x37 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x38-0x3f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x40-0x47 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x48-0x4f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50-0x57 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x58-0x5f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60-0x67 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x68-0x6f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70-0x77 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x78-0x7f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x80-0x87 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x88-0x8f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90-0x97 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x98-0x9f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa0-0xa7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa8-0xaf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0-0xb7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb8-0xbf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc0-0xc7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc8-0xcf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0-0xd7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd8-0xdf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe0-0xe7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe8-0xef */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf0-0xf7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf8-0xff */
+};
+
+static const unsigned char charset2upper[256] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x00-0x07 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x08-0x0f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x10-0x17 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x18-0x1f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x20-0x27 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x28-0x2f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30-0x37 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x38-0x3f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x40-0x47 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x48-0x4f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50-0x57 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x58-0x5f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60-0x67 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x68-0x6f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70-0x77 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x78-0x7f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x80-0x87 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x88-0x8f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90-0x97 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x98-0x9f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa0-0xa7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa8-0xaf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0-0xb7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb8-0xbf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc0-0xc7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc8-0xcf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0-0xd7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd8-0xdf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe0-0xe7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe8-0xef */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf0-0xf7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+ const unsigned char *uni2charset;
+ unsigned char cl = uni & 0x00ff;
+ unsigned char ch = (uni & 0xff00) >> 8;
+
+ if (boundlen <= 0)
+ return -ENAMETOOLONG;
+
+ uni2charset = page_uni2charset[ch];
+ if (uni2charset && uni2charset[cl])
+ out[0] = uni2charset[cl];
+ else
+ return -EINVAL;
+ return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+ *uni = charset2uni[*rawstring];
+ if (*uni == 0x0000)
+ return -EINVAL;
+ return 1;
+}
+
+static struct nls_table table = {
+ .charset = "maciceland",
+ .uni2char = uni2char,
+ .char2uni = char2uni,
+ .charset2lower = charset2lower,
+ .charset2upper = charset2upper,
+ .owner = THIS_MODULE,
+};
+
+static int __init init_nls_maciceland(void)
+{
+ return register_nls(&table);
+}
+
+static void __exit exit_nls_maciceland(void)
+{
+ unregister_nls(&table);
+}
+
+module_init(init_nls_maciceland)
+module_exit(exit_nls_maciceland)
+
+MODULE_LICENSE("Dual BSD/GPL");
--- /dev/null
+/*
+ * linux/fs/nls/nls_macinuit.c
+ *
+ * Charset macinuit translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+/*
+ * COPYRIGHT AND PERMISSION NOTICE
+ *
+ * Copyright 1991-2012 Unicode, Inc. All rights reserved. Distributed under
+ * the Terms of Use in http://www.unicode.org/copyright.html.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of the Unicode data files and any associated documentation (the "Data
+ * Files") or Unicode software and any associated documentation (the
+ * "Software") to deal in the Data Files or Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, and/or sell copies of the Data Files or Software, and
+ * to permit persons to whom the Data Files or Software are furnished to do
+ * so, provided that (a) the above copyright notice(s) and this permission
+ * notice appear with all copies of the Data Files or Software, (b) both the
+ * above copyright notice(s) and this permission notice appear in associated
+ * documentation, and (c) there is clear notice in each modified Data File or
+ * in the Software as well as in the documentation associated with the Data
+ * File(s) or Software that the data or software has been modified.
+ *
+ * THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+ * KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+ * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THE DATA FILES OR SOFTWARE.
+ *
+ * Except as contained in this notice, the name of a copyright holder shall
+ * not be used in advertising or otherwise to promote the sale, use or other
+ * dealings in these Data Files or Software without prior written
+ * authorization of the copyright holder.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static const wchar_t charset2uni[256] = {
+ /* 0x00 */
+ 0x0000, 0x0001, 0x0002, 0x0003,
+ 0x0004, 0x0005, 0x0006, 0x0007,
+ 0x0008, 0x0009, 0x000a, 0x000b,
+ 0x000c, 0x000d, 0x000e, 0x000f,
+ /* 0x10 */
+ 0x0010, 0x0011, 0x0012, 0x0013,
+ 0x0014, 0x0015, 0x0016, 0x0017,
+ 0x0018, 0x0019, 0x001a, 0x001b,
+ 0x001c, 0x001d, 0x001e, 0x001f,
+ /* 0x20 */
+ 0x0020, 0x0021, 0x0022, 0x0023,
+ 0x0024, 0x0025, 0x0026, 0x0027,
+ 0x0028, 0x0029, 0x002a, 0x002b,
+ 0x002c, 0x002d, 0x002e, 0x002f,
+ /* 0x30 */
+ 0x0030, 0x0031, 0x0032, 0x0033,
+ 0x0034, 0x0035, 0x0036, 0x0037,
+ 0x0038, 0x0039, 0x003a, 0x003b,
+ 0x003c, 0x003d, 0x003e, 0x003f,
+ /* 0x40 */
+ 0x0040, 0x0041, 0x0042, 0x0043,
+ 0x0044, 0x0045, 0x0046, 0x0047,
+ 0x0048, 0x0049, 0x004a, 0x004b,
+ 0x004c, 0x004d, 0x004e, 0x004f,
+ /* 0x50 */
+ 0x0050, 0x0051, 0x0052, 0x0053,
+ 0x0054, 0x0055, 0x0056, 0x0057,
+ 0x0058, 0x0059, 0x005a, 0x005b,
+ 0x005c, 0x005d, 0x005e, 0x005f,
+ /* 0x60 */
+ 0x0060, 0x0061, 0x0062, 0x0063,
+ 0x0064, 0x0065, 0x0066, 0x0067,
+ 0x0068, 0x0069, 0x006a, 0x006b,
+ 0x006c, 0x006d, 0x006e, 0x006f,
+ /* 0x70 */
+ 0x0070, 0x0071, 0x0072, 0x0073,
+ 0x0074, 0x0075, 0x0076, 0x0077,
+ 0x0078, 0x0079, 0x007a, 0x007b,
+ 0x007c, 0x007d, 0x007e, 0x007f,
+ /* 0x80 */
+ 0x1403, 0x1404, 0x1405, 0x1406,
+ 0x140a, 0x140b, 0x1431, 0x1432,
+ 0x1433, 0x1434, 0x1438, 0x1439,
+ 0x1449, 0x144e, 0x144f, 0x1450,
+ /* 0x90 */
+ 0x1451, 0x1455, 0x1456, 0x1466,
+ 0x146d, 0x146e, 0x146f, 0x1470,
+ 0x1472, 0x1473, 0x1483, 0x148b,
+ 0x148c, 0x148d, 0x148e, 0x1490,
+ /* 0xa0 */
+ 0x1491, 0x00b0, 0x14a1, 0x14a5,
+ 0x14a6, 0x2022, 0x00b6, 0x14a7,
+ 0x00ae, 0x00a9, 0x2122, 0x14a8,
+ 0x14aa, 0x14ab, 0x14bb, 0x14c2,
+ /* 0xb0 */
+ 0x14c3, 0x14c4, 0x14c5, 0x14c7,
+ 0x14c8, 0x14d0, 0x14ef, 0x14f0,
+ 0x14f1, 0x14f2, 0x14f4, 0x14f5,
+ 0x1505, 0x14d5, 0x14d6, 0x14d7,
+ /* 0xc0 */
+ 0x14d8, 0x14da, 0x14db, 0x14ea,
+ 0x1528, 0x1529, 0x152a, 0x152b,
+ 0x152d, 0x2026, 0x00a0, 0x152e,
+ 0x153e, 0x1555, 0x1556, 0x1557,
+ /* 0xd0 */
+ 0x2013, 0x2014, 0x201c, 0x201d,
+ 0x2018, 0x2019, 0x1558, 0x1559,
+ 0x155a, 0x155d, 0x1546, 0x1547,
+ 0x1548, 0x1549, 0x154b, 0x154c,
+ /* 0xe0 */
+ 0x1550, 0x157f, 0x1580, 0x1581,
+ 0x1582, 0x1583, 0x1584, 0x1585,
+ 0x158f, 0x1590, 0x1591, 0x1592,
+ 0x1593, 0x1594, 0x1595, 0x1671,
+ /* 0xf0 */
+ 0x1672, 0x1673, 0x1674, 0x1675,
+ 0x1676, 0x1596, 0x15a0, 0x15a1,
+ 0x15a2, 0x15a3, 0x15a4, 0x15a5,
+ 0x15a6, 0x157c, 0x0141, 0x0142,
+};
+
+static const unsigned char page00[256] = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+ 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+ 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+ 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+ 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+ 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+ 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+ 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+ 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0xca, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0xa9, 0x00, 0x00, 0x00, 0x00, 0xa8, 0x00, /* 0xa8-0xaf */
+ 0xa1, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa6, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page01[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page14[256] = {
+ 0x00, 0x00, 0x00, 0x80, 0x81, 0x82, 0x83, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x84, 0x85, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x86, 0x87, 0x88, 0x89, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x8a, 0x8b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x8c, 0x00, 0x00, 0x00, 0x00, 0x8d, 0x8e, /* 0x48-0x4f */
+ 0x8f, 0x90, 0x00, 0x00, 0x00, 0x91, 0x92, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x93, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x94, 0x95, 0x96, /* 0x68-0x6f */
+ 0x97, 0x00, 0x98, 0x99, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x9a, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x9b, 0x9c, 0x9d, 0x9e, 0x00, /* 0x88-0x8f */
+ 0x9f, 0xa0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0xa2, 0x00, 0x00, 0x00, 0xa3, 0xa4, 0xa7, /* 0xa0-0xa7 */
+ 0xab, 0x00, 0xac, 0xad, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0xae, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0xaf, 0xb0, 0xb1, 0xb2, 0x00, 0xb3, /* 0xc0-0xc7 */
+ 0xb4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0xb5, 0x00, 0x00, 0x00, 0x00, 0xbd, 0xbe, 0xbf, /* 0xd0-0xd7 */
+ 0xc0, 0x00, 0xc1, 0xc2, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, 0x00, 0xb6, /* 0xe8-0xef */
+ 0xb7, 0xb8, 0xb9, 0x00, 0xba, 0xbb, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page15[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0xbc, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0xc4, 0xc5, 0xc6, 0xc7, 0x00, 0xc8, 0xcb, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xcc, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xda, 0xdb, /* 0x40-0x47 */
+ 0xdc, 0xdd, 0x00, 0xde, 0xdf, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0xe0, 0x00, 0x00, 0x00, 0x00, 0xcd, 0xce, 0xcf, /* 0x50-0x57 */
+ 0xd6, 0xd7, 0xd8, 0x00, 0x00, 0xd9, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x00, 0xe1, /* 0x78-0x7f */
+ 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, /* 0x88-0x8f */
+ 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xf5, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page16[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page20[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0xd0, 0xd1, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0xd4, 0xd5, 0x00, 0x00, 0xd2, 0xd3, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0xa5, 0x00, 0x00, 0x00, 0xc9, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page21[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0xaa, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char *const page_uni2charset[256] = {
+ page00, page01, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, page14, page15, page16, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ page20, page21, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+};
+
+static const unsigned char charset2lower[256] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x00-0x07 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x08-0x0f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x10-0x17 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x18-0x1f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x20-0x27 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x28-0x2f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30-0x37 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x38-0x3f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x40-0x47 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x48-0x4f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50-0x57 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x58-0x5f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60-0x67 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x68-0x6f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70-0x77 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x78-0x7f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x80-0x87 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x88-0x8f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90-0x97 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x98-0x9f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa0-0xa7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa8-0xaf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0-0xb7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb8-0xbf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc0-0xc7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc8-0xcf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0-0xd7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd8-0xdf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe0-0xe7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe8-0xef */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf0-0xf7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf8-0xff */
+};
+
+static const unsigned char charset2upper[256] = {
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x00-0x07 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x08-0x0f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x10-0x17 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x18-0x1f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x20-0x27 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x28-0x2f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x30-0x37 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x38-0x3f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x40-0x47 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x48-0x4f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x50-0x57 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x58-0x5f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x60-0x67 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x68-0x6f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x70-0x77 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x78-0x7f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x80-0x87 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x88-0x8f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x90-0x97 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0x98-0x9f */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xa0-0xa7 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xa8-0xaf */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xb0-0xb7 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xb8-0xbf */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xc0-0xc7 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xc8-0xcf */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xd0-0xd7 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xd8-0xdf */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xe0-0xe7 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xe8-0xef */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xf0-0xf7 */
+ 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+ const unsigned char *uni2charset;
+ unsigned char cl = uni & 0x00ff;
+ unsigned char ch = (uni & 0xff00) >> 8;
+
+ if (boundlen <= 0)
+ return -ENAMETOOLONG;
+
+ uni2charset = page_uni2charset[ch];
+ if (uni2charset && uni2charset[cl])
+ out[0] = uni2charset[cl];
+ else
+ return -EINVAL;
+ return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+ *uni = charset2uni[*rawstring];
+ if (*uni == 0x0000)
+ return -EINVAL;
+ return 1;
+}
+
+static struct nls_table table = {
+ .charset = "macinuit",
+ .uni2char = uni2char,
+ .char2uni = char2uni,
+ .charset2lower = charset2lower,
+ .charset2upper = charset2upper,
+ .owner = THIS_MODULE,
+};
+
+static int __init init_nls_macinuit(void)
+{
+ return register_nls(&table);
+}
+
+static void __exit exit_nls_macinuit(void)
+{
+ unregister_nls(&table);
+}
+
+module_init(init_nls_macinuit)
+module_exit(exit_nls_macinuit)
+
+MODULE_LICENSE("Dual BSD/GPL");
--- /dev/null
+/*
+ * linux/fs/nls/nls_macroman.c
+ *
+ * Charset macroman translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+/*
+ * COPYRIGHT AND PERMISSION NOTICE
+ *
+ * Copyright 1991-2012 Unicode, Inc. All rights reserved. Distributed under
+ * the Terms of Use in http://www.unicode.org/copyright.html.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of the Unicode data files and any associated documentation (the "Data
+ * Files") or Unicode software and any associated documentation (the
+ * "Software") to deal in the Data Files or Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, and/or sell copies of the Data Files or Software, and
+ * to permit persons to whom the Data Files or Software are furnished to do
+ * so, provided that (a) the above copyright notice(s) and this permission
+ * notice appear with all copies of the Data Files or Software, (b) both the
+ * above copyright notice(s) and this permission notice appear in associated
+ * documentation, and (c) there is clear notice in each modified Data File or
+ * in the Software as well as in the documentation associated with the Data
+ * File(s) or Software that the data or software has been modified.
+ *
+ * THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+ * KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+ * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THE DATA FILES OR SOFTWARE.
+ *
+ * Except as contained in this notice, the name of a copyright holder shall
+ * not be used in advertising or otherwise to promote the sale, use or other
+ * dealings in these Data Files or Software without prior written
+ * authorization of the copyright holder.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static const wchar_t charset2uni[256] = {
+ /* 0x00 */
+ 0x0000, 0x0001, 0x0002, 0x0003,
+ 0x0004, 0x0005, 0x0006, 0x0007,
+ 0x0008, 0x0009, 0x000a, 0x000b,
+ 0x000c, 0x000d, 0x000e, 0x000f,
+ /* 0x10 */
+ 0x0010, 0x0011, 0x0012, 0x0013,
+ 0x0014, 0x0015, 0x0016, 0x0017,
+ 0x0018, 0x0019, 0x001a, 0x001b,
+ 0x001c, 0x001d, 0x001e, 0x001f,
+ /* 0x20 */
+ 0x0020, 0x0021, 0x0022, 0x0023,
+ 0x0024, 0x0025, 0x0026, 0x0027,
+ 0x0028, 0x0029, 0x002a, 0x002b,
+ 0x002c, 0x002d, 0x002e, 0x002f,
+ /* 0x30 */
+ 0x0030, 0x0031, 0x0032, 0x0033,
+ 0x0034, 0x0035, 0x0036, 0x0037,
+ 0x0038, 0x0039, 0x003a, 0x003b,
+ 0x003c, 0x003d, 0x003e, 0x003f,
+ /* 0x40 */
+ 0x0040, 0x0041, 0x0042, 0x0043,
+ 0x0044, 0x0045, 0x0046, 0x0047,
+ 0x0048, 0x0049, 0x004a, 0x004b,
+ 0x004c, 0x004d, 0x004e, 0x004f,
+ /* 0x50 */
+ 0x0050, 0x0051, 0x0052, 0x0053,
+ 0x0054, 0x0055, 0x0056, 0x0057,
+ 0x0058, 0x0059, 0x005a, 0x005b,
+ 0x005c, 0x005d, 0x005e, 0x005f,
+ /* 0x60 */
+ 0x0060, 0x0061, 0x0062, 0x0063,
+ 0x0064, 0x0065, 0x0066, 0x0067,
+ 0x0068, 0x0069, 0x006a, 0x006b,
+ 0x006c, 0x006d, 0x006e, 0x006f,
+ /* 0x70 */
+ 0x0070, 0x0071, 0x0072, 0x0073,
+ 0x0074, 0x0075, 0x0076, 0x0077,
+ 0x0078, 0x0079, 0x007a, 0x007b,
+ 0x007c, 0x007d, 0x007e, 0x007f,
+ /* 0x80 */
+ 0x00c4, 0x00c5, 0x00c7, 0x00c9,
+ 0x00d1, 0x00d6, 0x00dc, 0x00e1,
+ 0x00e0, 0x00e2, 0x00e4, 0x00e3,
+ 0x00e5, 0x00e7, 0x00e9, 0x00e8,
+ /* 0x90 */
+ 0x00ea, 0x00eb, 0x00ed, 0x00ec,
+ 0x00ee, 0x00ef, 0x00f1, 0x00f3,
+ 0x00f2, 0x00f4, 0x00f6, 0x00f5,
+ 0x00fa, 0x00f9, 0x00fb, 0x00fc,
+ /* 0xa0 */
+ 0x2020, 0x00b0, 0x00a2, 0x00a3,
+ 0x00a7, 0x2022, 0x00b6, 0x00df,
+ 0x00ae, 0x00a9, 0x2122, 0x00b4,
+ 0x00a8, 0x2260, 0x00c6, 0x00d8,
+ /* 0xb0 */
+ 0x221e, 0x00b1, 0x2264, 0x2265,
+ 0x00a5, 0x00b5, 0x2202, 0x2211,
+ 0x220f, 0x03c0, 0x222b, 0x00aa,
+ 0x00ba, 0x03a9, 0x00e6, 0x00f8,
+ /* 0xc0 */
+ 0x00bf, 0x00a1, 0x00ac, 0x221a,
+ 0x0192, 0x2248, 0x2206, 0x00ab,
+ 0x00bb, 0x2026, 0x00a0, 0x00c0,
+ 0x00c3, 0x00d5, 0x0152, 0x0153,
+ /* 0xd0 */
+ 0x2013, 0x2014, 0x201c, 0x201d,
+ 0x2018, 0x2019, 0x00f7, 0x25ca,
+ 0x00ff, 0x0178, 0x2044, 0x20ac,
+ 0x2039, 0x203a, 0xfb01, 0xfb02,
+ /* 0xe0 */
+ 0x2021, 0x00b7, 0x201a, 0x201e,
+ 0x2030, 0x00c2, 0x00ca, 0x00c1,
+ 0x00cb, 0x00c8, 0x00cd, 0x00ce,
+ 0x00cf, 0x00cc, 0x00d3, 0x00d4,
+ /* 0xf0 */
+ 0xf8ff, 0x00d2, 0x00da, 0x00db,
+ 0x00d9, 0x0131, 0x02c6, 0x02dc,
+ 0x00af, 0x02d8, 0x02d9, 0x02da,
+ 0x00b8, 0x02dd, 0x02db, 0x02c7,
+};
+
+static const unsigned char page00[256] = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+ 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+ 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+ 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+ 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+ 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+ 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+ 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+ 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0xca, 0xc1, 0xa2, 0xa3, 0x00, 0xb4, 0x00, 0xa4, /* 0xa0-0xa7 */
+ 0xac, 0xa9, 0xbb, 0xc7, 0xc2, 0x00, 0xa8, 0xf8, /* 0xa8-0xaf */
+ 0xa1, 0xb1, 0x00, 0x00, 0xab, 0xb5, 0xa6, 0xe1, /* 0xb0-0xb7 */
+ 0xfc, 0x00, 0xbc, 0xc8, 0x00, 0x00, 0x00, 0xc0, /* 0xb8-0xbf */
+ 0xcb, 0xe7, 0xe5, 0xcc, 0x80, 0x81, 0xae, 0x82, /* 0xc0-0xc7 */
+ 0xe9, 0x83, 0xe6, 0xe8, 0xed, 0xea, 0xeb, 0xec, /* 0xc8-0xcf */
+ 0x00, 0x84, 0xf1, 0xee, 0xef, 0xcd, 0x85, 0x00, /* 0xd0-0xd7 */
+ 0xaf, 0xf4, 0xf2, 0xf3, 0x86, 0x00, 0x00, 0xa7, /* 0xd8-0xdf */
+ 0x88, 0x87, 0x89, 0x8b, 0x8a, 0x8c, 0xbe, 0x8d, /* 0xe0-0xe7 */
+ 0x8f, 0x8e, 0x90, 0x91, 0x93, 0x92, 0x94, 0x95, /* 0xe8-0xef */
+ 0x00, 0x96, 0x98, 0x97, 0x99, 0x9b, 0x9a, 0xd6, /* 0xf0-0xf7 */
+ 0xbf, 0x9d, 0x9c, 0x9e, 0x9f, 0x00, 0x00, 0xd8, /* 0xf8-0xff */
+};
+
+static const unsigned char page01[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0xf5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0xce, 0xcf, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0xd9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0xc4, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page02[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf6, 0xff, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0xf9, 0xfa, 0xfb, 0xfe, 0xf7, 0xfd, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page03[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0xbd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0xb9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page20[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0xd0, 0xd1, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0xd4, 0xd5, 0xe2, 0x00, 0xd2, 0xd3, 0xe3, 0x00, /* 0x18-0x1f */
+ 0xa0, 0xe0, 0xa5, 0x00, 0x00, 0x00, 0xc9, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0xe4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0xdc, 0xdd, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0xdb, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page21[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0xaa, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page22[256] = {
+ 0x00, 0x00, 0xb6, 0x00, 0x00, 0x00, 0xc6, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb8, /* 0x08-0x0f */
+ 0x00, 0xb7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, 0xb0, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0xba, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0xc5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0xad, 0x00, 0x00, 0x00, 0xb2, 0xb3, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page25[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0xd7, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char pagef8[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, /* 0xf8-0xff */
+};
+
+static const unsigned char pagefb[256] = {
+ 0x00, 0xde, 0xdf, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char *const page_uni2charset[256] = {
+ page00, page01, page02, page03, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ page20, page21, page22, NULL, NULL, page25, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ pagef8, NULL, NULL, pagefb, NULL, NULL, NULL, NULL,
+};
+
+static const unsigned char charset2lower[256] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x00-0x07 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x08-0x0f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x10-0x17 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x18-0x1f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x20-0x27 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x28-0x2f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30-0x37 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x38-0x3f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x40-0x47 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x48-0x4f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50-0x57 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x58-0x5f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60-0x67 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x68-0x6f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70-0x77 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x78-0x7f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x80-0x87 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x88-0x8f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90-0x97 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x98-0x9f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa0-0xa7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa8-0xaf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0-0xb7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb8-0xbf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc0-0xc7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc8-0xcf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0-0xd7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd8-0xdf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe0-0xe7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe8-0xef */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf0-0xf7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf8-0xff */
+};
+
+static const unsigned char charset2upper[256] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x00-0x07 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x08-0x0f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x10-0x17 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x18-0x1f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x20-0x27 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x28-0x2f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30-0x37 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x38-0x3f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x40-0x47 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x48-0x4f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50-0x57 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x58-0x5f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60-0x67 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x68-0x6f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70-0x77 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x78-0x7f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x80-0x87 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x88-0x8f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90-0x97 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x98-0x9f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa0-0xa7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa8-0xaf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0-0xb7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb8-0xbf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc0-0xc7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc8-0xcf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0-0xd7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd8-0xdf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe0-0xe7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe8-0xef */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf0-0xf7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+ const unsigned char *uni2charset;
+ unsigned char cl = uni & 0x00ff;
+ unsigned char ch = (uni & 0xff00) >> 8;
+
+ if (boundlen <= 0)
+ return -ENAMETOOLONG;
+
+ uni2charset = page_uni2charset[ch];
+ if (uni2charset && uni2charset[cl])
+ out[0] = uni2charset[cl];
+ else
+ return -EINVAL;
+ return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+ *uni = charset2uni[*rawstring];
+ if (*uni == 0x0000)
+ return -EINVAL;
+ return 1;
+}
+
+static struct nls_table table = {
+ .charset = "macroman",
+ .uni2char = uni2char,
+ .char2uni = char2uni,
+ .charset2lower = charset2lower,
+ .charset2upper = charset2upper,
+ .owner = THIS_MODULE,
+};
+
+static int __init init_nls_macroman(void)
+{
+ return register_nls(&table);
+}
+
+static void __exit exit_nls_macroman(void)
+{
+ unregister_nls(&table);
+}
+
+module_init(init_nls_macroman)
+module_exit(exit_nls_macroman)
+
+MODULE_LICENSE("Dual BSD/GPL");
--- /dev/null
+/*
+ * linux/fs/nls/nls_macromanian.c
+ *
+ * Charset macromanian translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+/*
+ * COPYRIGHT AND PERMISSION NOTICE
+ *
+ * Copyright 1991-2012 Unicode, Inc. All rights reserved. Distributed under
+ * the Terms of Use in http://www.unicode.org/copyright.html.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of the Unicode data files and any associated documentation (the "Data
+ * Files") or Unicode software and any associated documentation (the
+ * "Software") to deal in the Data Files or Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, and/or sell copies of the Data Files or Software, and
+ * to permit persons to whom the Data Files or Software are furnished to do
+ * so, provided that (a) the above copyright notice(s) and this permission
+ * notice appear with all copies of the Data Files or Software, (b) both the
+ * above copyright notice(s) and this permission notice appear in associated
+ * documentation, and (c) there is clear notice in each modified Data File or
+ * in the Software as well as in the documentation associated with the Data
+ * File(s) or Software that the data or software has been modified.
+ *
+ * THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+ * KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+ * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THE DATA FILES OR SOFTWARE.
+ *
+ * Except as contained in this notice, the name of a copyright holder shall
+ * not be used in advertising or otherwise to promote the sale, use or other
+ * dealings in these Data Files or Software without prior written
+ * authorization of the copyright holder.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static const wchar_t charset2uni[256] = {
+ /* 0x00 */
+ 0x0000, 0x0001, 0x0002, 0x0003,
+ 0x0004, 0x0005, 0x0006, 0x0007,
+ 0x0008, 0x0009, 0x000a, 0x000b,
+ 0x000c, 0x000d, 0x000e, 0x000f,
+ /* 0x10 */
+ 0x0010, 0x0011, 0x0012, 0x0013,
+ 0x0014, 0x0015, 0x0016, 0x0017,
+ 0x0018, 0x0019, 0x001a, 0x001b,
+ 0x001c, 0x001d, 0x001e, 0x001f,
+ /* 0x20 */
+ 0x0020, 0x0021, 0x0022, 0x0023,
+ 0x0024, 0x0025, 0x0026, 0x0027,
+ 0x0028, 0x0029, 0x002a, 0x002b,
+ 0x002c, 0x002d, 0x002e, 0x002f,
+ /* 0x30 */
+ 0x0030, 0x0031, 0x0032, 0x0033,
+ 0x0034, 0x0035, 0x0036, 0x0037,
+ 0x0038, 0x0039, 0x003a, 0x003b,
+ 0x003c, 0x003d, 0x003e, 0x003f,
+ /* 0x40 */
+ 0x0040, 0x0041, 0x0042, 0x0043,
+ 0x0044, 0x0045, 0x0046, 0x0047,
+ 0x0048, 0x0049, 0x004a, 0x004b,
+ 0x004c, 0x004d, 0x004e, 0x004f,
+ /* 0x50 */
+ 0x0050, 0x0051, 0x0052, 0x0053,
+ 0x0054, 0x0055, 0x0056, 0x0057,
+ 0x0058, 0x0059, 0x005a, 0x005b,
+ 0x005c, 0x005d, 0x005e, 0x005f,
+ /* 0x60 */
+ 0x0060, 0x0061, 0x0062, 0x0063,
+ 0x0064, 0x0065, 0x0066, 0x0067,
+ 0x0068, 0x0069, 0x006a, 0x006b,
+ 0x006c, 0x006d, 0x006e, 0x006f,
+ /* 0x70 */
+ 0x0070, 0x0071, 0x0072, 0x0073,
+ 0x0074, 0x0075, 0x0076, 0x0077,
+ 0x0078, 0x0079, 0x007a, 0x007b,
+ 0x007c, 0x007d, 0x007e, 0x007f,
+ /* 0x80 */
+ 0x00c4, 0x00c5, 0x00c7, 0x00c9,
+ 0x00d1, 0x00d6, 0x00dc, 0x00e1,
+ 0x00e0, 0x00e2, 0x00e4, 0x00e3,
+ 0x00e5, 0x00e7, 0x00e9, 0x00e8,
+ /* 0x90 */
+ 0x00ea, 0x00eb, 0x00ed, 0x00ec,
+ 0x00ee, 0x00ef, 0x00f1, 0x00f3,
+ 0x00f2, 0x00f4, 0x00f6, 0x00f5,
+ 0x00fa, 0x00f9, 0x00fb, 0x00fc,
+ /* 0xa0 */
+ 0x2020, 0x00b0, 0x00a2, 0x00a3,
+ 0x00a7, 0x2022, 0x00b6, 0x00df,
+ 0x00ae, 0x00a9, 0x2122, 0x00b4,
+ 0x00a8, 0x2260, 0x0102, 0x0218,
+ /* 0xb0 */
+ 0x221e, 0x00b1, 0x2264, 0x2265,
+ 0x00a5, 0x00b5, 0x2202, 0x2211,
+ 0x220f, 0x03c0, 0x222b, 0x00aa,
+ 0x00ba, 0x03a9, 0x0103, 0x0219,
+ /* 0xc0 */
+ 0x00bf, 0x00a1, 0x00ac, 0x221a,
+ 0x0192, 0x2248, 0x2206, 0x00ab,
+ 0x00bb, 0x2026, 0x00a0, 0x00c0,
+ 0x00c3, 0x00d5, 0x0152, 0x0153,
+ /* 0xd0 */
+ 0x2013, 0x2014, 0x201c, 0x201d,
+ 0x2018, 0x2019, 0x00f7, 0x25ca,
+ 0x00ff, 0x0178, 0x2044, 0x20ac,
+ 0x2039, 0x203a, 0x021a, 0x021b,
+ /* 0xe0 */
+ 0x2021, 0x00b7, 0x201a, 0x201e,
+ 0x2030, 0x00c2, 0x00ca, 0x00c1,
+ 0x00cb, 0x00c8, 0x00cd, 0x00ce,
+ 0x00cf, 0x00cc, 0x00d3, 0x00d4,
+ /* 0xf0 */
+ 0xf8ff, 0x00d2, 0x00da, 0x00db,
+ 0x00d9, 0x0131, 0x02c6, 0x02dc,
+ 0x00af, 0x02d8, 0x02d9, 0x02da,
+ 0x00b8, 0x02dd, 0x02db, 0x02c7,
+};
+
+static const unsigned char page00[256] = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+ 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+ 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+ 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+ 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+ 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+ 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+ 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+ 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0xca, 0xc1, 0xa2, 0xa3, 0x00, 0xb4, 0x00, 0xa4, /* 0xa0-0xa7 */
+ 0xac, 0xa9, 0xbb, 0xc7, 0xc2, 0x00, 0xa8, 0xf8, /* 0xa8-0xaf */
+ 0xa1, 0xb1, 0x00, 0x00, 0xab, 0xb5, 0xa6, 0xe1, /* 0xb0-0xb7 */
+ 0xfc, 0x00, 0xbc, 0xc8, 0x00, 0x00, 0x00, 0xc0, /* 0xb8-0xbf */
+ 0xcb, 0xe7, 0xe5, 0xcc, 0x80, 0x81, 0x00, 0x82, /* 0xc0-0xc7 */
+ 0xe9, 0x83, 0xe6, 0xe8, 0xed, 0xea, 0xeb, 0xec, /* 0xc8-0xcf */
+ 0x00, 0x84, 0xf1, 0xee, 0xef, 0xcd, 0x85, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0xf4, 0xf2, 0xf3, 0x86, 0x00, 0x00, 0xa7, /* 0xd8-0xdf */
+ 0x88, 0x87, 0x89, 0x8b, 0x8a, 0x8c, 0x00, 0x8d, /* 0xe0-0xe7 */
+ 0x8f, 0x8e, 0x90, 0x91, 0x93, 0x92, 0x94, 0x95, /* 0xe8-0xef */
+ 0x00, 0x96, 0x98, 0x97, 0x99, 0x9b, 0x9a, 0xd6, /* 0xf0-0xf7 */
+ 0x00, 0x9d, 0x9c, 0x9e, 0x9f, 0x00, 0x00, 0xd8, /* 0xf8-0xff */
+};
+
+static const unsigned char page01[256] = {
+ 0x00, 0x00, 0xae, 0xbe, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0xf5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0xce, 0xcf, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0xd9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0xc4, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page02[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0xaf, 0xbf, 0xde, 0xdf, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf6, 0xff, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0xf9, 0xfa, 0xfb, 0xfe, 0xf7, 0xfd, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page03[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0xbd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0xb9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page20[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0xd0, 0xd1, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0xd4, 0xd5, 0xe2, 0x00, 0xd2, 0xd3, 0xe3, 0x00, /* 0x18-0x1f */
+ 0xa0, 0xe0, 0xa5, 0x00, 0x00, 0x00, 0xc9, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0xe4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0xdc, 0xdd, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0xdb, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page21[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0xaa, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page22[256] = {
+ 0x00, 0x00, 0xb6, 0x00, 0x00, 0x00, 0xc6, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb8, /* 0x08-0x0f */
+ 0x00, 0xb7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, 0xb0, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0xba, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0xc5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0xad, 0x00, 0x00, 0x00, 0xb2, 0xb3, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page25[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0xd7, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char pagef8[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, /* 0xf8-0xff */
+};
+
+static const unsigned char *const page_uni2charset[256] = {
+ page00, page01, page02, page03, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ page20, page21, page22, NULL, NULL, page25, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ pagef8, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+};
+
+static const unsigned char charset2lower[256] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x00-0x07 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x08-0x0f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x10-0x17 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x18-0x1f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x20-0x27 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x28-0x2f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30-0x37 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x38-0x3f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x40-0x47 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x48-0x4f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50-0x57 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x58-0x5f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60-0x67 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x68-0x6f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70-0x77 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x78-0x7f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x80-0x87 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x88-0x8f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90-0x97 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x98-0x9f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa0-0xa7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa8-0xaf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0-0xb7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb8-0xbf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc0-0xc7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc8-0xcf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0-0xd7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd8-0xdf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe0-0xe7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe8-0xef */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf0-0xf7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf8-0xff */
+};
+
+static const unsigned char charset2upper[256] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x00-0x07 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x08-0x0f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x10-0x17 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x18-0x1f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x20-0x27 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x28-0x2f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30-0x37 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x38-0x3f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x40-0x47 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x48-0x4f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50-0x57 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x58-0x5f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60-0x67 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x68-0x6f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70-0x77 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x78-0x7f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x80-0x87 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x88-0x8f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90-0x97 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x98-0x9f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa0-0xa7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa8-0xaf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0-0xb7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb8-0xbf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc0-0xc7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc8-0xcf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0-0xd7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd8-0xdf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe0-0xe7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe8-0xef */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf0-0xf7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+ const unsigned char *uni2charset;
+ unsigned char cl = uni & 0x00ff;
+ unsigned char ch = (uni & 0xff00) >> 8;
+
+ if (boundlen <= 0)
+ return -ENAMETOOLONG;
+
+ uni2charset = page_uni2charset[ch];
+ if (uni2charset && uni2charset[cl])
+ out[0] = uni2charset[cl];
+ else
+ return -EINVAL;
+ return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+ *uni = charset2uni[*rawstring];
+ if (*uni == 0x0000)
+ return -EINVAL;
+ return 1;
+}
+
+static struct nls_table table = {
+ .charset = "macromanian",
+ .uni2char = uni2char,
+ .char2uni = char2uni,
+ .charset2lower = charset2lower,
+ .charset2upper = charset2upper,
+ .owner = THIS_MODULE,
+};
+
+static int __init init_nls_macromanian(void)
+{
+ return register_nls(&table);
+}
+
+static void __exit exit_nls_macromanian(void)
+{
+ unregister_nls(&table);
+}
+
+module_init(init_nls_macromanian)
+module_exit(exit_nls_macromanian)
+
+MODULE_LICENSE("Dual BSD/GPL");
--- /dev/null
+/*
+ * linux/fs/nls/nls_macturkish.c
+ *
+ * Charset macturkish translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+/*
+ * COPYRIGHT AND PERMISSION NOTICE
+ *
+ * Copyright 1991-2012 Unicode, Inc. All rights reserved. Distributed under
+ * the Terms of Use in http://www.unicode.org/copyright.html.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of the Unicode data files and any associated documentation (the "Data
+ * Files") or Unicode software and any associated documentation (the
+ * "Software") to deal in the Data Files or Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, and/or sell copies of the Data Files or Software, and
+ * to permit persons to whom the Data Files or Software are furnished to do
+ * so, provided that (a) the above copyright notice(s) and this permission
+ * notice appear with all copies of the Data Files or Software, (b) both the
+ * above copyright notice(s) and this permission notice appear in associated
+ * documentation, and (c) there is clear notice in each modified Data File or
+ * in the Software as well as in the documentation associated with the Data
+ * File(s) or Software that the data or software has been modified.
+ *
+ * THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+ * KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+ * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THE DATA FILES OR SOFTWARE.
+ *
+ * Except as contained in this notice, the name of a copyright holder shall
+ * not be used in advertising or otherwise to promote the sale, use or other
+ * dealings in these Data Files or Software without prior written
+ * authorization of the copyright holder.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static const wchar_t charset2uni[256] = {
+ /* 0x00 */
+ 0x0000, 0x0001, 0x0002, 0x0003,
+ 0x0004, 0x0005, 0x0006, 0x0007,
+ 0x0008, 0x0009, 0x000a, 0x000b,
+ 0x000c, 0x000d, 0x000e, 0x000f,
+ /* 0x10 */
+ 0x0010, 0x0011, 0x0012, 0x0013,
+ 0x0014, 0x0015, 0x0016, 0x0017,
+ 0x0018, 0x0019, 0x001a, 0x001b,
+ 0x001c, 0x001d, 0x001e, 0x001f,
+ /* 0x20 */
+ 0x0020, 0x0021, 0x0022, 0x0023,
+ 0x0024, 0x0025, 0x0026, 0x0027,
+ 0x0028, 0x0029, 0x002a, 0x002b,
+ 0x002c, 0x002d, 0x002e, 0x002f,
+ /* 0x30 */
+ 0x0030, 0x0031, 0x0032, 0x0033,
+ 0x0034, 0x0035, 0x0036, 0x0037,
+ 0x0038, 0x0039, 0x003a, 0x003b,
+ 0x003c, 0x003d, 0x003e, 0x003f,
+ /* 0x40 */
+ 0x0040, 0x0041, 0x0042, 0x0043,
+ 0x0044, 0x0045, 0x0046, 0x0047,
+ 0x0048, 0x0049, 0x004a, 0x004b,
+ 0x004c, 0x004d, 0x004e, 0x004f,
+ /* 0x50 */
+ 0x0050, 0x0051, 0x0052, 0x0053,
+ 0x0054, 0x0055, 0x0056, 0x0057,
+ 0x0058, 0x0059, 0x005a, 0x005b,
+ 0x005c, 0x005d, 0x005e, 0x005f,
+ /* 0x60 */
+ 0x0060, 0x0061, 0x0062, 0x0063,
+ 0x0064, 0x0065, 0x0066, 0x0067,
+ 0x0068, 0x0069, 0x006a, 0x006b,
+ 0x006c, 0x006d, 0x006e, 0x006f,
+ /* 0x70 */
+ 0x0070, 0x0071, 0x0072, 0x0073,
+ 0x0074, 0x0075, 0x0076, 0x0077,
+ 0x0078, 0x0079, 0x007a, 0x007b,
+ 0x007c, 0x007d, 0x007e, 0x007f,
+ /* 0x80 */
+ 0x00c4, 0x00c5, 0x00c7, 0x00c9,
+ 0x00d1, 0x00d6, 0x00dc, 0x00e1,
+ 0x00e0, 0x00e2, 0x00e4, 0x00e3,
+ 0x00e5, 0x00e7, 0x00e9, 0x00e8,
+ /* 0x90 */
+ 0x00ea, 0x00eb, 0x00ed, 0x00ec,
+ 0x00ee, 0x00ef, 0x00f1, 0x00f3,
+ 0x00f2, 0x00f4, 0x00f6, 0x00f5,
+ 0x00fa, 0x00f9, 0x00fb, 0x00fc,
+ /* 0xa0 */
+ 0x2020, 0x00b0, 0x00a2, 0x00a3,
+ 0x00a7, 0x2022, 0x00b6, 0x00df,
+ 0x00ae, 0x00a9, 0x2122, 0x00b4,
+ 0x00a8, 0x2260, 0x00c6, 0x00d8,
+ /* 0xb0 */
+ 0x221e, 0x00b1, 0x2264, 0x2265,
+ 0x00a5, 0x00b5, 0x2202, 0x2211,
+ 0x220f, 0x03c0, 0x222b, 0x00aa,
+ 0x00ba, 0x03a9, 0x00e6, 0x00f8,
+ /* 0xc0 */
+ 0x00bf, 0x00a1, 0x00ac, 0x221a,
+ 0x0192, 0x2248, 0x2206, 0x00ab,
+ 0x00bb, 0x2026, 0x00a0, 0x00c0,
+ 0x00c3, 0x00d5, 0x0152, 0x0153,
+ /* 0xd0 */
+ 0x2013, 0x2014, 0x201c, 0x201d,
+ 0x2018, 0x2019, 0x00f7, 0x25ca,
+ 0x00ff, 0x0178, 0x011e, 0x011f,
+ 0x0130, 0x0131, 0x015e, 0x015f,
+ /* 0xe0 */
+ 0x2021, 0x00b7, 0x201a, 0x201e,
+ 0x2030, 0x00c2, 0x00ca, 0x00c1,
+ 0x00cb, 0x00c8, 0x00cd, 0x00ce,
+ 0x00cf, 0x00cc, 0x00d3, 0x00d4,
+ /* 0xf0 */
+ 0xf8ff, 0x00d2, 0x00da, 0x00db,
+ 0x00d9, 0xf8a0, 0x02c6, 0x02dc,
+ 0x00af, 0x02d8, 0x02d9, 0x02da,
+ 0x00b8, 0x02dd, 0x02db, 0x02c7,
+};
+
+static const unsigned char page00[256] = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+ 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+ 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+ 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+ 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+ 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+ 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+ 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+ 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0xca, 0xc1, 0xa2, 0xa3, 0x00, 0xb4, 0x00, 0xa4, /* 0xa0-0xa7 */
+ 0xac, 0xa9, 0xbb, 0xc7, 0xc2, 0x00, 0xa8, 0xf8, /* 0xa8-0xaf */
+ 0xa1, 0xb1, 0x00, 0x00, 0xab, 0xb5, 0xa6, 0xe1, /* 0xb0-0xb7 */
+ 0xfc, 0x00, 0xbc, 0xc8, 0x00, 0x00, 0x00, 0xc0, /* 0xb8-0xbf */
+ 0xcb, 0xe7, 0xe5, 0xcc, 0x80, 0x81, 0xae, 0x82, /* 0xc0-0xc7 */
+ 0xe9, 0x83, 0xe6, 0xe8, 0xed, 0xea, 0xeb, 0xec, /* 0xc8-0xcf */
+ 0x00, 0x84, 0xf1, 0xee, 0xef, 0xcd, 0x85, 0x00, /* 0xd0-0xd7 */
+ 0xaf, 0xf4, 0xf2, 0xf3, 0x86, 0x00, 0x00, 0xa7, /* 0xd8-0xdf */
+ 0x88, 0x87, 0x89, 0x8b, 0x8a, 0x8c, 0xbe, 0x8d, /* 0xe0-0xe7 */
+ 0x8f, 0x8e, 0x90, 0x91, 0x93, 0x92, 0x94, 0x95, /* 0xe8-0xef */
+ 0x00, 0x96, 0x98, 0x97, 0x99, 0x9b, 0x9a, 0xd6, /* 0xf0-0xf7 */
+ 0xbf, 0x9d, 0x9c, 0x9e, 0x9f, 0x00, 0x00, 0xd8, /* 0xf8-0xff */
+};
+
+static const unsigned char page01[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xda, 0xdb, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0xdc, 0xdd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0xce, 0xcf, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xde, 0xdf, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0xd9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0xc4, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page02[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf6, 0xff, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0xf9, 0xfa, 0xfb, 0xfe, 0xf7, 0xfd, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page03[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0xbd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0xb9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page20[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0xd0, 0xd1, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0xd4, 0xd5, 0xe2, 0x00, 0xd2, 0xd3, 0xe3, 0x00, /* 0x18-0x1f */
+ 0xa0, 0xe0, 0xa5, 0x00, 0x00, 0x00, 0xc9, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0xe4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page21[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0xaa, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page22[256] = {
+ 0x00, 0x00, 0xb6, 0x00, 0x00, 0x00, 0xc6, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb8, /* 0x08-0x0f */
+ 0x00, 0xb7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, 0xb0, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0xba, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0xc5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0xad, 0x00, 0x00, 0x00, 0xb2, 0xb3, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char page25[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0xd7, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static const unsigned char pagef8[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+ 0xf5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, /* 0xf8-0xff */
+};
+
+static const unsigned char *const page_uni2charset[256] = {
+ page00, page01, page02, page03, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ page20, page21, page22, NULL, NULL, page25, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ pagef8, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+};
+
+static const unsigned char charset2lower[256] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x00-0x07 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x08-0x0f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x10-0x17 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x18-0x1f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x20-0x27 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x28-0x2f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30-0x37 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x38-0x3f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x40-0x47 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x48-0x4f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50-0x57 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x58-0x5f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60-0x67 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x68-0x6f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70-0x77 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x78-0x7f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x80-0x87 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x88-0x8f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90-0x97 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x98-0x9f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa0-0xa7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa8-0xaf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0-0xb7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb8-0xbf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc0-0xc7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc8-0xcf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0-0xd7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd8-0xdf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe0-0xe7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe8-0xef */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf0-0xf7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf8-0xff */
+};
+
+static const unsigned char charset2upper[256] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x00-0x07 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x08-0x0f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x10-0x17 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x18-0x1f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x20-0x27 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x28-0x2f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30-0x37 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x38-0x3f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x40-0x47 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x48-0x4f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50-0x57 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x58-0x5f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60-0x67 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x68-0x6f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70-0x77 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x78-0x7f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x80-0x87 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x88-0x8f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90-0x97 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x98-0x9f */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa0-0xa7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xa8-0xaf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0-0xb7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb8-0xbf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc0-0xc7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xc8-0xcf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0-0xd7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd8-0xdf */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe0-0xe7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xe8-0xef */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf0-0xf7 */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+ const unsigned char *uni2charset;
+ unsigned char cl = uni & 0x00ff;
+ unsigned char ch = (uni & 0xff00) >> 8;
+
+ if (boundlen <= 0)
+ return -ENAMETOOLONG;
+
+ uni2charset = page_uni2charset[ch];
+ if (uni2charset && uni2charset[cl])
+ out[0] = uni2charset[cl];
+ else
+ return -EINVAL;
+ return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+ *uni = charset2uni[*rawstring];
+ if (*uni == 0x0000)
+ return -EINVAL;
+ return 1;
+}
+
+static struct nls_table table = {
+ .charset = "macturkish",
+ .uni2char = uni2char,
+ .char2uni = char2uni,
+ .charset2lower = charset2lower,
+ .charset2upper = charset2upper,
+ .owner = THIS_MODULE,
+};
+
+static int __init init_nls_macturkish(void)
+{
+ return register_nls(&table);
+}
+
+static void __exit exit_nls_macturkish(void)
+{
+ unregister_nls(&table);
+}
+
+module_init(init_nls_macturkish)
+module_exit(exit_nls_macturkish)
+
+MODULE_LICENSE("Dual BSD/GPL");
}
EXPORT_SYMBOL_GPL(__fsnotify_parent);
-static int send_to_group(struct inode *to_tell, struct vfsmount *mnt,
+static int send_to_group(struct inode *to_tell,
struct fsnotify_mark *inode_mark,
struct fsnotify_mark *vfsmount_mark,
__u32 mask, void *data,
vfsmount_test_mask &= ~inode_mark->ignored_mask;
}
- pr_debug("%s: group=%p to_tell=%p mnt=%p mask=%x inode_mark=%p"
+ pr_debug("%s: group=%p to_tell=%p mask=%x inode_mark=%p"
" inode_test_mask=%x vfsmount_mark=%p vfsmount_test_mask=%x"
" data=%p data_is=%d cookie=%d event=%p\n",
- __func__, group, to_tell, mnt, mask, inode_mark,
+ __func__, group, to_tell, mask, inode_mark,
inode_test_mask, vfsmount_mark, vfsmount_test_mask, data,
data_is, cookie, *event);
if (inode_group > vfsmount_group) {
/* handle inode */
- ret = send_to_group(to_tell, NULL, inode_mark, NULL, mask, data,
+ ret = send_to_group(to_tell, inode_mark, NULL, mask, data,
data_is, cookie, file_name, &event);
/* we didn't use the vfsmount_mark */
vfsmount_group = NULL;
} else if (vfsmount_group > inode_group) {
- ret = send_to_group(to_tell, &mnt->mnt, NULL, vfsmount_mark, mask, data,
+ ret = send_to_group(to_tell, NULL, vfsmount_mark, mask, data,
data_is, cookie, file_name, &event);
inode_group = NULL;
} else {
- ret = send_to_group(to_tell, &mnt->mnt, inode_mark, vfsmount_mark,
+ ret = send_to_group(to_tell, inode_mark, vfsmount_mark,
mask, data, data_is, cookie, file_name,
&event);
}
err = file_remove_suid(file);
if (err)
goto out;
- file_update_time(file);
+ err = file_update_time(file);
+ if (err)
+ goto out;
written = ntfs_file_buffered_write(iocb, iov, nr_segs, pos, ppos,
count);
out:
struct ocfs2_blockcheck_stats *stats)
{
int rc = 0;
- struct ocfs2_block_check check;
+ u32 bc_crc32e;
+ u16 bc_ecc;
u32 crc, ecc;
ocfs2_blockcheck_inc_check(stats);
- check.bc_crc32e = le32_to_cpu(bc->bc_crc32e);
- check.bc_ecc = le16_to_cpu(bc->bc_ecc);
+ bc_crc32e = le32_to_cpu(bc->bc_crc32e);
+ bc_ecc = le16_to_cpu(bc->bc_ecc);
memset(bc, 0, sizeof(struct ocfs2_block_check));
/* Fast path - if the crc32 validates, we're good to go */
crc = crc32_le(~0, data, blocksize);
- if (crc == check.bc_crc32e)
+ if (crc == bc_crc32e)
goto out;
ocfs2_blockcheck_inc_failure(stats);
mlog(ML_ERROR,
"CRC32 failed: stored: 0x%x, computed 0x%x. Applying ECC.\n",
- (unsigned int)check.bc_crc32e, (unsigned int)crc);
+ (unsigned int)bc_crc32e, (unsigned int)crc);
/* Ok, try ECC fixups */
ecc = ocfs2_hamming_encode_block(data, blocksize);
- ocfs2_hamming_fix_block(data, blocksize, ecc ^ check.bc_ecc);
+ ocfs2_hamming_fix_block(data, blocksize, ecc ^ bc_ecc);
/* And check the crc32 again */
crc = crc32_le(~0, data, blocksize);
- if (crc == check.bc_crc32e) {
+ if (crc == bc_crc32e) {
ocfs2_blockcheck_inc_recover(stats);
goto out;
}
mlog(ML_ERROR, "Fixed CRC32 failed: stored: 0x%x, computed 0x%x\n",
- (unsigned int)check.bc_crc32e, (unsigned int)crc);
+ (unsigned int)bc_crc32e, (unsigned int)crc);
rc = -EIO;
out:
- bc->bc_crc32e = cpu_to_le32(check.bc_crc32e);
- bc->bc_ecc = cpu_to_le16(check.bc_ecc);
+ bc->bc_crc32e = cpu_to_le32(bc_crc32e);
+ bc->bc_ecc = cpu_to_le16(bc_ecc);
return rc;
}
struct ocfs2_blockcheck_stats *stats)
{
int i, rc = 0;
- struct ocfs2_block_check check;
+ u32 bc_crc32e;
+ u16 bc_ecc;
u32 crc, ecc, fix;
BUG_ON(nr < 0);
ocfs2_blockcheck_inc_check(stats);
- check.bc_crc32e = le32_to_cpu(bc->bc_crc32e);
- check.bc_ecc = le16_to_cpu(bc->bc_ecc);
+ bc_crc32e = le32_to_cpu(bc->bc_crc32e);
+ bc_ecc = le16_to_cpu(bc->bc_ecc);
memset(bc, 0, sizeof(struct ocfs2_block_check));
/* Fast path - if the crc32 validates, we're good to go */
for (i = 0, crc = ~0; i < nr; i++)
crc = crc32_le(crc, bhs[i]->b_data, bhs[i]->b_size);
- if (crc == check.bc_crc32e)
+ if (crc == bc_crc32e)
goto out;
ocfs2_blockcheck_inc_failure(stats);
mlog(ML_ERROR,
"CRC32 failed: stored: %u, computed %u. Applying ECC.\n",
- (unsigned int)check.bc_crc32e, (unsigned int)crc);
+ (unsigned int)bc_crc32e, (unsigned int)crc);
/* Ok, try ECC fixups */
for (i = 0, ecc = 0; i < nr; i++) {
bhs[i]->b_size * 8,
bhs[i]->b_size * 8 * i);
}
- fix = ecc ^ check.bc_ecc;
+ fix = ecc ^ bc_ecc;
for (i = 0; i < nr; i++) {
/*
* Try the fix against each buffer. It will only affect
/* And check the crc32 again */
for (i = 0, crc = ~0; i < nr; i++)
crc = crc32_le(crc, bhs[i]->b_data, bhs[i]->b_size);
- if (crc == check.bc_crc32e) {
+ if (crc == bc_crc32e) {
ocfs2_blockcheck_inc_recover(stats);
goto out;
}
mlog(ML_ERROR, "Fixed CRC32 failed: stored: %u, computed %u\n",
- (unsigned int)check.bc_crc32e, (unsigned int)crc);
+ (unsigned int)bc_crc32e, (unsigned int)crc);
rc = -EIO;
out:
- bc->bc_crc32e = cpu_to_le32(check.bc_crc32e);
- bc->bc_ecc = cpu_to_le16(check.bc_ecc);
+ bc->bc_crc32e = cpu_to_le32(bc_crc32e);
+ bc->bc_ecc = cpu_to_le16(bc_ecc);
return rc;
}
struct dlm_proxy_ast *past = (struct dlm_proxy_ast *) msg->buf;
char *name;
struct list_head *iter, *head=NULL;
- u64 cookie;
+ __be64 cookie;
u32 flags;
u8 node;
};
union dlm_query_join_response {
- u32 intval;
+ __be32 intval;
struct dlm_query_join_packet packet;
};
struct dlm_node_info {
u8 ni_nodenum;
u8 pad1;
- u16 ni_ipv4_port;
- u32 ni_ipv4_address;
+ __be16 ni_ipv4_port;
+ __be32 ni_ipv4_address;
};
struct dlm_query_nodeinfo {
union dlm_query_join_response response;
response.packet = *packet;
- *wire = cpu_to_be32(response.intval);
+ *wire = be32_to_cpu(response.intval);
}
static void dlm_query_join_wire_to_packet(u32 wire,
return parent;
}
-static int ocfs2_encode_fh(struct dentry *dentry, u32 *fh_in, int *max_len,
- int connectable)
+static int ocfs2_encode_fh(struct inode *inode, u32 *fh_in, int *max_len,
+ struct inode *parent)
{
- struct inode *inode = dentry->d_inode;
int len = *max_len;
int type = 1;
u64 blkno;
u32 generation;
__le32 *fh = (__force __le32 *) fh_in;
+#ifdef TRACE_HOOKS_ARE_NOT_BRAINDEAD_IN_YOUR_OPINION
+#error "You go ahead and fix that mess, then. Somehow"
trace_ocfs2_encode_fh_begin(dentry, dentry->d_name.len,
dentry->d_name.name,
fh, len, connectable);
+#endif
- if (connectable && (len < 6)) {
+ if (parent && (len < 6)) {
*max_len = 6;
type = 255;
goto bail;
fh[1] = cpu_to_le32((u32)(blkno & 0xffffffff));
fh[2] = cpu_to_le32(generation);
- if (connectable && !S_ISDIR(inode->i_mode)) {
- struct inode *parent;
-
- spin_lock(&dentry->d_lock);
-
- parent = dentry->d_parent->d_inode;
+ if (parent) {
blkno = OCFS2_I(parent)->ip_blkno;
generation = parent->i_generation;
fh[4] = cpu_to_le32((u32)(blkno & 0xffffffff));
fh[5] = cpu_to_le32(generation);
- spin_unlock(&dentry->d_lock);
-
len = 6;
type = 2;
inode->i_gid = le32_to_cpu(fe->i_gid);
/* Fast symlinks will have i_size but no allocated clusters. */
- if (S_ISLNK(inode->i_mode) && !fe->i_clusters)
+ if (S_ISLNK(inode->i_mode) && !fe->i_clusters) {
inode->i_blocks = 0;
- else
+ inode->i_mapping->a_ops = &ocfs2_fast_symlink_aops;
+ } else {
inode->i_blocks = ocfs2_inode_sector_count(inode);
- inode->i_mapping->a_ops = &ocfs2_aops;
+ inode->i_mapping->a_ops = &ocfs2_aops;
+ }
inode->i_atime.tv_sec = le64_to_cpu(fe->i_atime);
inode->i_atime.tv_nsec = le32_to_cpu(fe->i_atime_nsec);
inode->i_mtime.tv_sec = le64_to_cpu(fe->i_mtime);
OCFS2_I(inode)->ip_dir_lock_gen = 1;
break;
case S_IFLNK:
- if (ocfs2_inode_is_fast_symlink(inode))
- inode->i_op = &ocfs2_fast_symlink_inode_operations;
- else
- inode->i_op = &ocfs2_symlink_inode_operations;
+ inode->i_op = &ocfs2_symlink_inode_operations;
i_size_write(inode, le64_to_cpu(fe->i_size));
break;
default:
if (status)
break;
- reqp = (struct ocfs2_info_request *)(unsigned long)req_addr;
+ reqp = (struct ocfs2_info_request __user *)(unsigned long)req_addr;
if (!reqp) {
status = -EINVAL;
goto bail;
struct ocfs2_space_resv sr;
struct ocfs2_new_group_input input;
struct reflink_arguments args;
- const char *old_path, *new_path;
+ const char __user *old_path;
+ const char __user *new_path;
bool preserve;
struct ocfs2_info info;
+ void __user *argp = (void __user *)arg;
switch (cmd) {
case OCFS2_IOC_GETFLAGS:
return ocfs2_group_add(inode, &input);
case OCFS2_IOC_REFLINK:
- if (copy_from_user(&args, (struct reflink_arguments *)arg,
- sizeof(args)))
+ if (copy_from_user(&args, argp, sizeof(args)))
return -EFAULT;
- old_path = (const char *)(unsigned long)args.old_path;
- new_path = (const char *)(unsigned long)args.new_path;
+ old_path = (const char __user *)(unsigned long)args.old_path;
+ new_path = (const char __user *)(unsigned long)args.new_path;
preserve = (args.preserve != 0);
return ocfs2_reflink_ioctl(inode, old_path, new_path, preserve);
case OCFS2_IOC_INFO:
- if (copy_from_user(&info, (struct ocfs2_info __user *)arg,
- sizeof(struct ocfs2_info)))
+ if (copy_from_user(&info, argp, sizeof(struct ocfs2_info)))
return -EFAULT;
return ocfs2_info_handle(inode, &info, 0);
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (copy_from_user(&range, (struct fstrim_range *)arg,
- sizeof(range)))
+ if (copy_from_user(&range, argp, sizeof(range)))
return -EFAULT;
ret = ocfs2_trim_fs(sb, &range);
if (ret < 0)
return ret;
- if (copy_to_user((struct fstrim_range *)arg, &range,
- sizeof(range)))
+ if (copy_to_user(argp, &range, sizeof(range)))
return -EFAULT;
return 0;
}
case OCFS2_IOC_MOVE_EXT:
- return ocfs2_ioctl_move_extents(filp, (void __user *)arg);
+ return ocfs2_ioctl_move_extents(filp, argp);
default:
return -ENOTTY;
}
struct reflink_arguments args;
struct inode *inode = file->f_path.dentry->d_inode;
struct ocfs2_info info;
+ void __user *argp = (void __user *)arg;
switch (cmd) {
case OCFS2_IOC32_GETFLAGS:
case FITRIM:
break;
case OCFS2_IOC_REFLINK:
- if (copy_from_user(&args, (struct reflink_arguments *)arg,
- sizeof(args)))
+ if (copy_from_user(&args, argp, sizeof(args)))
return -EFAULT;
preserve = (args.preserve != 0);
return ocfs2_reflink_ioctl(inode, compat_ptr(args.old_path),
compat_ptr(args.new_path), preserve);
case OCFS2_IOC_INFO:
- if (copy_from_user(&info, (struct ocfs2_info __user *)arg,
- sizeof(struct ocfs2_info)))
+ if (copy_from_user(&info, argp, sizeof(struct ocfs2_info)))
return -EFAULT;
return ocfs2_info_handle(inode, &info, 1);
context->file = filp;
if (argp) {
- if (copy_from_user(&range, (struct ocfs2_move_extents *)argp,
- sizeof(range))) {
+ if (copy_from_user(&range, argp, sizeof(range))) {
status = -EFAULT;
goto out;
}
* length and new_offset even if failure happens somewhere.
*/
if (argp) {
- if (copy_to_user((struct ocfs2_move_extents *)argp, &range,
- sizeof(range)))
+ if (copy_to_user(argp, &range, sizeof(range)))
status = -EFAULT;
}
fe = (struct ocfs2_dinode *) new_fe_bh->b_data;
inode->i_rdev = 0;
newsize = l - 1;
+ inode->i_op = &ocfs2_symlink_inode_operations;
if (l > ocfs2_fast_symlink_chars(sb)) {
u32 offset = 0;
- inode->i_op = &ocfs2_symlink_inode_operations;
status = dquot_alloc_space_nodirty(inode,
ocfs2_clusters_to_bytes(osb->sb, 1));
if (status)
goto bail;
did_quota = 1;
+ inode->i_mapping->a_ops = &ocfs2_aops;
status = ocfs2_add_inode_data(osb, inode, &offset, 1, 0,
new_fe_bh,
handle, data_ac, NULL,
i_size_write(inode, newsize);
inode->i_blocks = ocfs2_inode_sector_count(inode);
} else {
- inode->i_op = &ocfs2_fast_symlink_inode_operations;
+ inode->i_mapping->a_ops = &ocfs2_fast_symlink_aops;
memcpy((char *) fe->id2.i_symlink, symname, l);
i_size_write(inode, newsize);
inode->i_blocks = 0;
#include "buffer_head_io.h"
-static char *ocfs2_fast_symlink_getlink(struct inode *inode,
- struct buffer_head **bh)
+static int ocfs2_fast_symlink_readpage(struct file *unused, struct page *page)
{
- int status;
- char *link = NULL;
+ struct inode *inode = page->mapping->host;
+ struct buffer_head *bh;
+ int status = ocfs2_read_inode_block(inode, &bh);
struct ocfs2_dinode *fe;
+ const char *link;
+ void *kaddr;
+ size_t len;
- status = ocfs2_read_inode_block(inode, bh);
if (status < 0) {
mlog_errno(status);
- link = ERR_PTR(status);
- goto bail;
+ return status;
}
- fe = (struct ocfs2_dinode *) (*bh)->b_data;
+ fe = (struct ocfs2_dinode *) bh->b_data;
link = (char *) fe->id2.i_symlink;
-bail:
-
- return link;
-}
-
-static int ocfs2_readlink(struct dentry *dentry,
- char __user *buffer,
- int buflen)
-{
- int ret;
- char *link;
- struct buffer_head *bh = NULL;
- struct inode *inode = dentry->d_inode;
-
- link = ocfs2_fast_symlink_getlink(inode, &bh);
- if (IS_ERR(link)) {
- ret = PTR_ERR(link);
- goto out;
- }
-
- /*
- * Without vfsmount we can't update atime now,
- * but we will update atime here ultimately.
- */
- ret = vfs_readlink(dentry, buffer, buflen, link);
-
+ /* will be less than a page size */
+ len = strnlen(link, ocfs2_fast_symlink_chars(inode->i_sb));
+ kaddr = kmap_atomic(page);
+ memcpy(kaddr, link, len + 1);
+ kunmap_atomic(kaddr);
+ SetPageUptodate(page);
+ unlock_page(page);
brelse(bh);
-out:
- if (ret < 0)
- mlog_errno(ret);
- return ret;
+ return 0;
}
-static void *ocfs2_fast_follow_link(struct dentry *dentry,
- struct nameidata *nd)
-{
- int status = 0;
- int len;
- char *target, *link = ERR_PTR(-ENOMEM);
- struct inode *inode = dentry->d_inode;
- struct buffer_head *bh = NULL;
-
- BUG_ON(!ocfs2_inode_is_fast_symlink(inode));
- target = ocfs2_fast_symlink_getlink(inode, &bh);
- if (IS_ERR(target)) {
- status = PTR_ERR(target);
- mlog_errno(status);
- goto bail;
- }
-
- /* Fast symlinks can't be large */
- len = strnlen(target, ocfs2_fast_symlink_chars(inode->i_sb));
- link = kzalloc(len + 1, GFP_NOFS);
- if (!link) {
- status = -ENOMEM;
- mlog_errno(status);
- goto bail;
- }
-
- memcpy(link, target, len);
-
-bail:
- nd_set_link(nd, status ? ERR_PTR(status) : link);
- brelse(bh);
-
- if (status)
- mlog_errno(status);
- return NULL;
-}
-
-static void ocfs2_fast_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
-{
- char *link = nd_get_link(nd);
- if (!IS_ERR(link))
- kfree(link);
-}
+const struct address_space_operations ocfs2_fast_symlink_aops = {
+ .readpage = ocfs2_fast_symlink_readpage,
+};
const struct inode_operations ocfs2_symlink_inode_operations = {
- .readlink = page_readlink,
+ .readlink = generic_readlink,
.follow_link = page_follow_link_light,
.put_link = page_put_link,
.getattr = ocfs2_getattr,
.removexattr = generic_removexattr,
.fiemap = ocfs2_fiemap,
};
-const struct inode_operations ocfs2_fast_symlink_inode_operations = {
- .readlink = ocfs2_readlink,
- .follow_link = ocfs2_fast_follow_link,
- .put_link = ocfs2_fast_put_link,
- .getattr = ocfs2_getattr,
- .setattr = ocfs2_setattr,
- .setxattr = generic_setxattr,
- .getxattr = generic_getxattr,
- .listxattr = ocfs2_listxattr,
- .removexattr = generic_removexattr,
- .fiemap = ocfs2_fiemap,
-};
#define OCFS2_SYMLINK_H
extern const struct inode_operations ocfs2_symlink_inode_operations;
-extern const struct inode_operations ocfs2_fast_symlink_inode_operations;
+extern const struct address_space_operations ocfs2_fast_symlink_aops;
/*
* Test whether an inode is a fast symlink.
return error;
}
-static struct file *__dentry_open(struct dentry *dentry, struct vfsmount *mnt,
- struct file *f,
- int (*open)(struct inode *, struct file *),
- const struct cred *cred)
+int open_check_o_direct(struct file *f)
+{
+ /* NB: we're sure to have correct a_ops only after f_op->open */
+ if (f->f_flags & O_DIRECT) {
+ if (!f->f_mapping->a_ops ||
+ ((!f->f_mapping->a_ops->direct_IO) &&
+ (!f->f_mapping->a_ops->get_xip_mem))) {
+ return -EINVAL;
+ }
+ }
+ return 0;
+}
+
+static struct file *do_dentry_open(struct dentry *dentry, struct vfsmount *mnt,
+ struct file *f,
+ int (*open)(struct inode *, struct file *),
+ const struct cred *cred)
{
static const struct file_operations empty_fops = {};
struct inode *inode;
file_ra_state_init(&f->f_ra, f->f_mapping->host->i_mapping);
- /* NB: we're sure to have correct a_ops only after f_op->open */
- if (f->f_flags & O_DIRECT) {
- if (!f->f_mapping->a_ops ||
- ((!f->f_mapping->a_ops->direct_IO) &&
- (!f->f_mapping->a_ops->get_xip_mem))) {
- fput(f);
- f = ERR_PTR(-EINVAL);
- }
- }
-
return f;
cleanup_all:
f->f_path.dentry = NULL;
f->f_path.mnt = NULL;
cleanup_file:
- put_filp(f);
dput(dentry);
mntput(mnt);
return ERR_PTR(error);
}
+static struct file *__dentry_open(struct dentry *dentry, struct vfsmount *mnt,
+ struct file *f,
+ int (*open)(struct inode *, struct file *),
+ const struct cred *cred)
+{
+ struct file *res = do_dentry_open(dentry, mnt, f, open, cred);
+ if (!IS_ERR(res)) {
+ int error = open_check_o_direct(f);
+ if (error) {
+ fput(res);
+ res = ERR_PTR(error);
+ }
+ } else {
+ put_filp(f);
+ }
+ return res;
+}
+
/**
* lookup_instantiate_filp - instantiates the open intent filp
* @nd: pointer to nameidata
/* Pick up the filp from the open intent */
filp = nd->intent.open.file;
- nd->intent.open.file = NULL;
/* Has the filesystem initialised the file for us? */
- if (filp->f_path.dentry == NULL) {
+ if (filp->f_path.dentry != NULL) {
+ nd->intent.open.file = NULL;
+ } else {
+ struct file *res;
+
path_get(&nd->path);
- filp = __dentry_open(nd->path.dentry, nd->path.mnt, filp,
- NULL, cred);
+ res = do_dentry_open(nd->path.dentry, nd->path.mnt,
+ filp, NULL, cred);
+ if (!IS_ERR(res)) {
+ int error;
+
+ nd->intent.open.file = NULL;
+ BUG_ON(res != filp);
+
+ error = open_check_o_direct(filp);
+ if (error) {
+ fput(filp);
+ filp = ERR_PTR(error);
+ }
+ } else {
+ /* Allow nd->intent.open.file to be recycled */
+ filp = res;
+ }
}
return filp;
}
wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLRDNORM);
kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
}
- if (ret > 0)
- file_update_time(filp);
+ if (ret > 0) {
+ int err = file_update_time(filp);
+ if (err)
+ ret = err;
+ }
return ret;
}
return put_user(count, (int __user *)arg);
default:
- return -EINVAL;
+ return -ENOIOCTLCMD;
}
}
prev_src_mnt = child;
}
out:
- br_write_lock(vfsmount_lock);
+ br_write_lock(&vfsmount_lock);
while (!list_empty(&tmp_list)) {
child = list_first_entry(&tmp_list, struct mount, mnt_hash);
umount_tree(child, 0, &umount_list);
}
- br_write_unlock(vfsmount_lock);
+ br_write_unlock(&vfsmount_lock);
release_mounts(&umount_list);
return ret;
}
struct pid *pid, struct task_struct *task, int whole)
{
unsigned long vsize, eip, esp, wchan = ~0UL;
- long priority, nice;
+ int priority, nice;
int tty_pgrp = -1, tty_nr = 0;
sigset_t sigign, sigcatch;
char state;
seq_put_decimal_ull(m, ' ', 0);
seq_put_decimal_ull(m, ' ', start_time);
seq_put_decimal_ull(m, ' ', vsize);
- seq_put_decimal_ll(m, ' ', mm ? get_mm_rss(mm) : 0);
+ seq_put_decimal_ull(m, ' ', mm ? get_mm_rss(mm) : 0);
seq_put_decimal_ull(m, ' ', rsslim);
seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->start_code : 1) : 0);
seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->end_code : 1) : 0);
seq_put_decimal_ull(m, ' ', delayacct_blkio_ticks(task));
seq_put_decimal_ull(m, ' ', cputime_to_clock_t(gtime));
seq_put_decimal_ll(m, ' ', cputime_to_clock_t(cgtime));
- seq_put_decimal_ull(m, ' ', (mm && permitted) ? mm->start_data : 0);
- seq_put_decimal_ull(m, ' ', (mm && permitted) ? mm->end_data : 0);
- seq_put_decimal_ull(m, ' ', (mm && permitted) ? mm->start_brk : 0);
+
+ if (mm && permitted) {
+ seq_put_decimal_ull(m, ' ', mm->start_data);
+ seq_put_decimal_ull(m, ' ', mm->end_data);
+ seq_put_decimal_ull(m, ' ', mm->start_brk);
+ seq_put_decimal_ull(m, ' ', mm->arg_start);
+ seq_put_decimal_ull(m, ' ', mm->arg_end);
+ seq_put_decimal_ull(m, ' ', mm->env_start);
+ seq_put_decimal_ull(m, ' ', mm->env_end);
+ } else
+ seq_printf(m, " 0 0 0 0 0 0 0");
+
+ if (permitted)
+ seq_put_decimal_ll(m, ' ', task->exit_code);
+ else
+ seq_put_decimal_ll(m, ' ', 0);
+
seq_putc(m, '\n');
if (mm)
mmput(mm);
return 0;
}
+
+#ifdef CONFIG_CHECKPOINT_RESTORE
+static struct pid *
+get_children_pid(struct inode *inode, struct pid *pid_prev, loff_t pos)
+{
+ struct task_struct *start, *task;
+ struct pid *pid = NULL;
+
+ read_lock(&tasklist_lock);
+
+ start = pid_task(proc_pid(inode), PIDTYPE_PID);
+ if (!start)
+ goto out;
+
+ /*
+ * Lets try to continue searching first, this gives
+ * us significant speedup on children-rich processes.
+ */
+ if (pid_prev) {
+ task = pid_task(pid_prev, PIDTYPE_PID);
+ if (task && task->real_parent == start &&
+ !(list_empty(&task->sibling))) {
+ if (list_is_last(&task->sibling, &start->children))
+ goto out;
+ task = list_first_entry(&task->sibling,
+ struct task_struct, sibling);
+ pid = get_pid(task_pid(task));
+ goto out;
+ }
+ }
+
+ /*
+ * Slow search case.
+ *
+ * We might miss some children here if children
+ * are exited while we were not holding the lock,
+ * but it was never promised to be accurate that
+ * much.
+ *
+ * "Just suppose that the parent sleeps, but N children
+ * exit after we printed their tids. Now the slow paths
+ * skips N extra children, we miss N tasks." (c)
+ *
+ * So one need to stop or freeze the leader and all
+ * its children to get a precise result.
+ */
+ list_for_each_entry(task, &start->children, sibling) {
+ if (pos-- == 0) {
+ pid = get_pid(task_pid(task));
+ break;
+ }
+ }
+
+out:
+ read_unlock(&tasklist_lock);
+ return pid;
+}
+
+static int children_seq_show(struct seq_file *seq, void *v)
+{
+ struct inode *inode = seq->private;
+ pid_t pid;
+
+ pid = pid_nr_ns(v, inode->i_sb->s_fs_info);
+ return seq_printf(seq, "%d ", pid);
+}
+
+static void *children_seq_start(struct seq_file *seq, loff_t *pos)
+{
+ return get_children_pid(seq->private, NULL, *pos);
+}
+
+static void *children_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ struct pid *pid;
+
+ pid = get_children_pid(seq->private, v, *pos + 1);
+ put_pid(v);
+
+ ++*pos;
+ return pid;
+}
+
+static void children_seq_stop(struct seq_file *seq, void *v)
+{
+ put_pid(v);
+}
+
+static const struct seq_operations children_seq_ops = {
+ .start = children_seq_start,
+ .next = children_seq_next,
+ .stop = children_seq_stop,
+ .show = children_seq_show,
+};
+
+static int children_seq_open(struct inode *inode, struct file *file)
+{
+ struct seq_file *m;
+ int ret;
+
+ ret = seq_open(file, &children_seq_ops);
+ if (ret)
+ return ret;
+
+ m = file->private_data;
+ m->private = inode;
+
+ return ret;
+}
+
+int children_seq_release(struct inode *inode, struct file *file)
+{
+ seq_release(inode, file);
+ return 0;
+}
+
+const struct file_operations proc_tid_children_operations = {
+ .open = children_seq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = children_seq_release,
+};
+#endif /* CONFIG_CHECKPOINT_RESTORE */
return result;
}
-struct mm_struct *mm_for_maps(struct task_struct *task)
-{
- return mm_access(task, PTRACE_MODE_READ);
-}
-
static int proc_pid_cmdline(struct task_struct *task, char * buffer)
{
int res = 0;
static int proc_pid_auxv(struct task_struct *task, char *buffer)
{
- struct mm_struct *mm = mm_for_maps(task);
+ struct mm_struct *mm = mm_access(task, PTRACE_MODE_READ);
int res = PTR_ERR(mm);
if (mm && !IS_ERR(mm)) {
unsigned int nwords = 0;
static int proc_oom_score(struct task_struct *task, char *buffer)
{
+ unsigned long totalpages = totalram_pages + total_swap_pages;
unsigned long points = 0;
read_lock(&tasklist_lock);
if (pid_alive(task))
- points = oom_badness(task, NULL, NULL,
- totalram_pages + total_swap_pages);
+ points = oom_badness(task, NULL, NULL, totalpages) *
+ 1000 / totalpages;
read_unlock(&tasklist_lock);
return sprintf(buffer, "%lu\n", points);
}
.release = single_release,
};
-static int mem_open(struct inode* inode, struct file* file)
+static int __mem_open(struct inode *inode, struct file *file, unsigned int mode)
{
struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode);
struct mm_struct *mm;
if (!task)
return -ESRCH;
- mm = mm_access(task, PTRACE_MODE_ATTACH);
+ mm = mm_access(task, mode);
put_task_struct(task);
if (IS_ERR(mm))
return 0;
}
+static int mem_open(struct inode *inode, struct file *file)
+{
+ return __mem_open(inode, file, PTRACE_MODE_ATTACH);
+}
+
static ssize_t mem_rw(struct file *file, char __user *buf,
size_t count, loff_t *ppos, int write)
{
.release = mem_release,
};
+static int environ_open(struct inode *inode, struct file *file)
+{
+ return __mem_open(inode, file, PTRACE_MODE_READ);
+}
+
static ssize_t environ_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
- struct task_struct *task = get_proc_task(file->f_dentry->d_inode);
char *page;
unsigned long src = *ppos;
- int ret = -ESRCH;
- struct mm_struct *mm;
+ int ret = 0;
+ struct mm_struct *mm = file->private_data;
- if (!task)
- goto out_no_task;
+ if (!mm)
+ return 0;
- ret = -ENOMEM;
page = (char *)__get_free_page(GFP_TEMPORARY);
if (!page)
- goto out;
-
-
- mm = mm_for_maps(task);
- ret = PTR_ERR(mm);
- if (!mm || IS_ERR(mm))
- goto out_free;
+ return -ENOMEM;
ret = 0;
+ if (!atomic_inc_not_zero(&mm->mm_users))
+ goto free;
while (count > 0) {
int this_len, retval, max_len;
max_len = (count > PAGE_SIZE) ? PAGE_SIZE : count;
this_len = (this_len > max_len) ? max_len : this_len;
- retval = access_process_vm(task, (mm->env_start + src),
+ retval = access_remote_vm(mm, (mm->env_start + src),
page, this_len, 0);
if (retval <= 0) {
count -= retval;
}
*ppos = src;
-
mmput(mm);
-out_free:
+
+free:
free_page((unsigned long) page);
-out:
- put_task_struct(task);
-out_no_task:
return ret;
}
static const struct file_operations proc_environ_operations = {
+ .open = environ_open,
.read = environ_read,
.llseek = generic_file_llseek,
+ .release = mem_release,
};
static ssize_t oom_adjust_read(struct file *file, char __user *buf,
static struct dentry *proc_fd_instantiate(struct inode *dir,
struct dentry *dentry, struct task_struct *task, const void *ptr)
{
- unsigned fd = *(const unsigned *)ptr;
+ unsigned fd = (unsigned long)ptr;
struct inode *inode;
struct proc_inode *ei;
struct dentry *error = ERR_PTR(-ENOENT);
if (fd == ~0U)
goto out;
- result = instantiate(dir, dentry, task, &fd);
+ result = instantiate(dir, dentry, task, (void *)(unsigned long)fd);
out:
put_task_struct(task);
out_no_task:
fd++, filp->f_pos++) {
char name[PROC_NUMBUF];
int len;
+ int rv;
if (!fcheck_files(files, fd))
continue;
rcu_read_unlock();
len = snprintf(name, sizeof(name), "%d", fd);
- if (proc_fill_cache(filp, dirent, filldir,
- name, len, instantiate,
- p, &fd) < 0) {
- rcu_read_lock();
- break;
- }
+ rv = proc_fill_cache(filp, dirent, filldir,
+ name, len, instantiate, p,
+ (void *)(unsigned long)fd);
+ if (rv < 0)
+ goto out_fd_loop;
rcu_read_lock();
}
rcu_read_unlock();
+out_fd_loop:
put_files_struct(files);
}
out:
if (!task)
goto out_notask;
- if (!ptrace_may_access(task, PTRACE_MODE_READ))
- goto out;
-
- mm = get_task_mm(task);
- if (!mm)
+ mm = mm_access(task, PTRACE_MODE_READ);
+ if (IS_ERR_OR_NULL(mm))
goto out;
if (!dname_to_vma_addr(dentry, &vm_start, &vm_end)) {
static struct dentry *proc_fdinfo_instantiate(struct inode *dir,
struct dentry *dentry, struct task_struct *task, const void *ptr)
{
- unsigned fd = *(unsigned *)ptr;
+ unsigned fd = (unsigned long)ptr;
struct inode *inode;
struct proc_inode *ei;
struct dentry *error = ERR_PTR(-ENOENT);
ONE("stat", S_IRUGO, proc_tid_stat),
ONE("statm", S_IRUGO, proc_pid_statm),
REG("maps", S_IRUGO, proc_tid_maps_operations),
+#ifdef CONFIG_CHECKPOINT_RESTORE
+ REG("children", S_IRUGO, proc_tid_children_operations),
+#endif
#ifdef CONFIG_NUMA
REG("numa_maps", S_IRUGO, proc_tid_numa_maps_operations),
#endif
unsigned long largest_chunk;
};
-extern struct mm_struct *mm_for_maps(struct task_struct *);
-
#ifdef CONFIG_MMU
#define VMALLOC_TOTAL (VMALLOC_END - VMALLOC_START)
extern void get_vmalloc_info(struct vmalloc_info *vmi);
struct pid *pid, struct task_struct *task);
extern loff_t mem_lseek(struct file *file, loff_t offset, int orig);
+extern const struct file_operations proc_tid_children_operations;
extern const struct file_operations proc_pid_maps_operations;
extern const struct file_operations proc_tid_maps_operations;
extern const struct file_operations proc_pid_numa_maps_operations;
if (!priv->task)
return ERR_PTR(-ESRCH);
- mm = mm_for_maps(priv->task);
+ mm = mm_access(priv->task, PTRACE_MODE_READ);
if (!mm || IS_ERR(mm))
return mm;
down_read(&mm->mmap_sem);
unsigned long anonymous;
unsigned long anonymous_thp;
unsigned long swap;
+ unsigned long nonlinear;
u64 pss;
};
{
struct mem_size_stats *mss = walk->private;
struct vm_area_struct *vma = mss->vma;
- struct page *page;
+ pgoff_t pgoff = linear_page_index(vma, addr);
+ struct page *page = NULL;
int mapcount;
- if (is_swap_pte(ptent)) {
- mss->swap += ptent_size;
- return;
+ if (pte_present(ptent)) {
+ page = vm_normal_page(vma, addr, ptent);
+ } else if (is_swap_pte(ptent)) {
+ swp_entry_t swpent = pte_to_swp_entry(ptent);
+
+ if (!non_swap_entry(swpent))
+ mss->swap += ptent_size;
+ else if (is_migration_entry(swpent))
+ page = migration_entry_to_page(swpent);
+ } else if (pte_file(ptent)) {
+ if (pte_to_pgoff(ptent) != pgoff)
+ mss->nonlinear += ptent_size;
}
- if (!pte_present(ptent))
- return;
-
- page = vm_normal_page(vma, addr, ptent);
if (!page)
return;
if (PageAnon(page))
mss->anonymous += ptent_size;
+ if (page->index != pgoff)
+ mss->nonlinear += ptent_size;
+
mss->resident += ptent_size;
/* Accumulate the size in pages that have been accessed. */
if (pte_young(ptent) || PageReferenced(page))
(vma->vm_flags & VM_LOCKED) ?
(unsigned long)(mss.pss >> (10 + PSS_SHIFT)) : 0);
+ if (vma->vm_flags & VM_NONLINEAR)
+ seq_printf(m, "Nonlinear: %8lu kB\n",
+ mss.nonlinear >> 10);
+
if (m->count < m->size) /* vma is copied successfully */
m->version = (vma != get_gate_vma(task->mm))
? vma->vm_start : 0;
#define PM_PRESENT PM_STATUS(4LL)
#define PM_SWAP PM_STATUS(2LL)
+#define PM_FILE PM_STATUS(1LL)
#define PM_NOT_PRESENT PM_PSHIFT(PAGE_SHIFT)
#define PM_END_OF_BUFFER 1
return err;
}
-static u64 swap_pte_to_pagemap_entry(pte_t pte)
-{
- swp_entry_t e = pte_to_swp_entry(pte);
- return swp_type(e) | (swp_offset(e) << MAX_SWAPFILES_SHIFT);
-}
-
-static void pte_to_pagemap_entry(pagemap_entry_t *pme, pte_t pte)
+static void pte_to_pagemap_entry(pagemap_entry_t *pme,
+ struct vm_area_struct *vma, unsigned long addr, pte_t pte)
{
- if (is_swap_pte(pte))
- *pme = make_pme(PM_PFRAME(swap_pte_to_pagemap_entry(pte))
- | PM_PSHIFT(PAGE_SHIFT) | PM_SWAP);
- else if (pte_present(pte))
- *pme = make_pme(PM_PFRAME(pte_pfn(pte))
- | PM_PSHIFT(PAGE_SHIFT) | PM_PRESENT);
- else
+ u64 frame, flags;
+ struct page *page = NULL;
+
+ if (pte_present(pte)) {
+ frame = pte_pfn(pte);
+ flags = PM_PRESENT;
+ page = vm_normal_page(vma, addr, pte);
+ } else if (is_swap_pte(pte)) {
+ swp_entry_t entry = pte_to_swp_entry(pte);
+
+ frame = swp_type(entry) |
+ (swp_offset(entry) << MAX_SWAPFILES_SHIFT);
+ flags = PM_SWAP;
+ if (is_migration_entry(entry))
+ page = migration_entry_to_page(entry);
+ } else {
*pme = make_pme(PM_NOT_PRESENT);
+ return;
+ }
+
+ if (page && !PageAnon(page))
+ flags |= PM_FILE;
+
+ *pme = make_pme(PM_PFRAME(frame) | PM_PSHIFT(PAGE_SHIFT) | flags);
}
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
/* find the first VMA at or above 'addr' */
vma = find_vma(walk->mm, addr);
- if (pmd_trans_huge_lock(pmd, vma) == 1) {
+ if (vma && pmd_trans_huge_lock(pmd, vma) == 1) {
for (; addr != end; addr += PAGE_SIZE) {
unsigned long offset;
if (vma && (vma->vm_start <= addr) &&
!is_vm_hugetlb_page(vma)) {
pte = pte_offset_map(pmd, addr);
- pte_to_pagemap_entry(&pme, *pte);
+ pte_to_pagemap_entry(&pme, vma, addr, *pte);
/* unmap before userspace copy */
pte_unmap(pte);
}
* For each page in the address space, this file contains one 64-bit entry
* consisting of the following:
*
- * Bits 0-55 page frame number (PFN) if present
+ * Bits 0-54 page frame number (PFN) if present
* Bits 0-4 swap type if swapped
- * Bits 5-55 swap offset if swapped
+ * Bits 5-54 swap offset if swapped
* Bits 55-60 page shift (page size = 1<<page shift)
- * Bit 61 reserved for future use
+ * Bit 61 page is file-page or shared-anon
* Bit 62 page swapped
* Bit 63 page present
*
if (!pm.buffer)
goto out_task;
- mm = mm_for_maps(task);
+ mm = mm_access(task, PTRACE_MODE_READ);
ret = PTR_ERR(mm);
if (!mm || IS_ERR(mm))
goto out_free;
if (!priv->task)
return ERR_PTR(-ESRCH);
- mm = mm_for_maps(priv->task);
+ mm = mm_access(priv->task, PTRACE_MODE_READ);
if (!mm || IS_ERR(mm)) {
put_task_struct(priv->task);
priv->task = NULL;
poll_wait(file, &p->ns->poll, wait);
- br_read_lock(vfsmount_lock);
+ br_read_lock(&vfsmount_lock);
if (p->m.poll_event != ns->event) {
p->m.poll_event = ns->event;
res |= POLLERR | POLLPRI;
}
- br_read_unlock(vfsmount_lock);
+ br_read_unlock(&vfsmount_lock);
return res;
}
ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector,
unsigned long nr_segs, unsigned long fast_segs,
struct iovec *fast_pointer,
- struct iovec **ret_pointer,
- int check_access)
+ struct iovec **ret_pointer)
{
unsigned long seg;
ssize_t ret;
ret = -EINVAL;
goto out;
}
- if (check_access
+ if (type >= 0
&& unlikely(!access_ok(vrfy_dir(type), buf, len))) {
ret = -EFAULT;
goto out;
}
ret = rw_copy_check_uvector(type, uvector, nr_segs,
- ARRAY_SIZE(iovstack), iovstack, &iov, 1);
+ ARRAY_SIZE(iovstack), iovstack, &iov);
if (ret <= 0)
goto out;
int error;
struct file * file;
struct readdir_callback buf;
+ int fput_needed;
- error = -EBADF;
- file = fget(fd);
+ file = fget_light(fd, &fput_needed);
if (!file)
- goto out;
+ return -EBADF;
buf.result = 0;
buf.dirent = dirent;
if (buf.result)
error = buf.result;
- fput(file);
-out:
+ fput_light(file, fput_needed);
return error;
}
struct file * file;
struct linux_dirent __user * lastdirent;
struct getdents_callback buf;
+ int fput_needed;
int error;
- error = -EFAULT;
if (!access_ok(VERIFY_WRITE, dirent, count))
- goto out;
+ return -EFAULT;
- error = -EBADF;
- file = fget(fd);
+ file = fget_light(fd, &fput_needed);
if (!file)
- goto out;
+ return -EBADF;
buf.current_dir = dirent;
buf.previous = NULL;
else
error = count - buf.count;
}
- fput(file);
-out:
+ fput_light(file, fput_needed);
return error;
}
struct file * file;
struct linux_dirent64 __user * lastdirent;
struct getdents_callback64 buf;
+ int fput_needed;
int error;
- error = -EFAULT;
if (!access_ok(VERIFY_WRITE, dirent, count))
- goto out;
+ return -EFAULT;
- error = -EBADF;
- file = fget(fd);
+ file = fget_light(fd, &fput_needed);
if (!file)
- goto out;
+ return -EBADF;
buf.current_dir = dirent;
buf.previous = NULL;
else
error = count - buf.count;
}
- fput(file);
-out:
+ fput_light(file, fput_needed);
return error;
}
(fh_type == 6) ? fid->raw[5] : 0);
}
-int reiserfs_encode_fh(struct dentry *dentry, __u32 * data, int *lenp,
- int need_parent)
+int reiserfs_encode_fh(struct inode *inode, __u32 * data, int *lenp,
+ struct inode *parent)
{
- struct inode *inode = dentry->d_inode;
int maxlen = *lenp;
- if (need_parent && (maxlen < 5)) {
+ if (parent && (maxlen < 5)) {
*lenp = 5;
return 255;
} else if (maxlen < 3) {
data[1] = le32_to_cpu(INODE_PKEY(inode)->k_dir_id);
data[2] = inode->i_generation;
*lenp = 3;
- /* no room for directory info? return what we've stored so far */
- if (maxlen < 5 || !need_parent)
- return 3;
-
- spin_lock(&dentry->d_lock);
- inode = dentry->d_parent->d_inode;
- data[3] = inode->i_ino;
- data[4] = le32_to_cpu(INODE_PKEY(inode)->k_dir_id);
- *lenp = 5;
- if (maxlen >= 6) {
- data[5] = inode->i_generation;
- *lenp = 6;
- }
- spin_unlock(&dentry->d_lock);
+ if (parent) {
+ data[3] = parent->i_ino;
+ data[4] = le32_to_cpu(INODE_PKEY(parent)->k_dir_id);
+ *lenp = 5;
+ if (maxlen >= 6) {
+ data[5] = parent->i_generation;
+ *lenp = 6;
+ }
+ }
return *lenp;
}
* the workqueue job (flush_async_commit) needs this lock
*/
reiserfs_write_unlock(sb);
+
+ cancel_delayed_work_sync(&REISERFS_SB(sb)->old_work);
flush_workqueue(commit_wq);
if (!reiserfs_mounted_fs_count) {
th->t_trans_id, journal->j_trans_id);
}
- sb->s_dirt = 1;
-
prepared = test_clear_buffer_journal_prepared(bh);
clear_buffer_journal_restore_dirty(bh);
/* already in this transaction, we are done */
journal->j_first = cn;
journal->j_last = cn;
}
+ reiserfs_schedule_old_flush(sb);
return 0;
}
** flushes any old transactions to disk
** ends the current transaction if it is too old
*/
-int reiserfs_flush_old_commits(struct super_block *sb)
+void reiserfs_flush_old_commits(struct super_block *sb)
{
time_t now;
struct reiserfs_transaction_handle th;
/* safety check so we don't flush while we are replaying the log during
* mount
*/
- if (list_empty(&journal->j_journal_list)) {
- return 0;
- }
+ if (list_empty(&journal->j_journal_list))
+ return;
/* check the current transaction. If there are no writers, and it is
* too old, finish it, and force the commit blocks to disk
do_journal_end(&th, sb, 1, COMMIT_NOW | WAIT);
}
}
- return sb->s_dirt;
}
/*
** it tells us if we should continue with the journal_end, or just return
*/
if (!check_journal_end(th, sb, nblocks, flags)) {
- sb->s_dirt = 1;
+ reiserfs_schedule_old_flush(sb);
wake_queued_writers(sb);
reiserfs_async_progress_wait(sb);
goto out;
struct dentry *priv_root; /* root of /.reiserfs_priv */
struct dentry *xattr_root; /* root of /.reiserfs_priv/xattrs */
int j_errno;
+
+ int work_queued; /* non-zero delayed work is queued */
+ struct delayed_work old_work; /* old transactions flush delayed work */
+ spinlock_t old_work_lock; /* protects old_work and work_queued */
+
#ifdef CONFIG_QUOTA
char *s_qf_names[MAXQUOTAS];
int s_jquota_fmt;
int reiserfs_end_persistent_transaction(struct reiserfs_transaction_handle *);
int reiserfs_commit_page(struct inode *inode, struct page *page,
unsigned from, unsigned to);
-int reiserfs_flush_old_commits(struct super_block *);
+void reiserfs_flush_old_commits(struct super_block *);
int reiserfs_commit_for_inode(struct inode *);
int reiserfs_inode_needs_commit(struct inode *);
void reiserfs_update_inode_transaction(struct inode *);
int reiserfs_allocate_list_bitmaps(struct super_block *s,
struct reiserfs_list_bitmap *, unsigned int);
+void reiserfs_schedule_old_flush(struct super_block *s);
void add_save_link(struct reiserfs_transaction_handle *th,
struct inode *inode, int truncate);
int remove_save_link(struct inode *inode, int truncate);
int fh_len, int fh_type);
struct dentry *reiserfs_fh_to_parent(struct super_block *sb, struct fid *fid,
int fh_len, int fh_type);
-int reiserfs_encode_fh(struct dentry *dentry, __u32 * data, int *lenp,
- int connectable);
+int reiserfs_encode_fh(struct inode *inode, __u32 * data, int *lenp,
+ struct inode *parent);
int reiserfs_truncate_file(struct inode *, int update_timestamps);
void make_cpu_key(struct cpu_key *cpu_key, struct inode *inode, loff_t offset,
(bmap_nr_new - bmap_nr)));
PUT_SB_BLOCK_COUNT(s, block_count_new);
PUT_SB_BMAP_NR(s, bmap_would_wrap(bmap_nr_new) ? : bmap_nr_new);
- s->s_dirt = 1;
journal_mark_dirty(&th, s, SB_BUFFER_WITH_SB(s));
if (!journal_begin(&th, s, 1))
if (!journal_end_sync(&th, s, 1))
reiserfs_flush_old_commits(s);
- s->s_dirt = 0; /* Even if it's not true.
- * We'll loop forever in sync_supers otherwise */
reiserfs_write_unlock(s);
return 0;
}
-static void reiserfs_write_super(struct super_block *s)
+static void flush_old_commits(struct work_struct *work)
{
+ struct reiserfs_sb_info *sbi;
+ struct super_block *s;
+
+ sbi = container_of(work, struct reiserfs_sb_info, old_work.work);
+ s = sbi->s_journal->j_work_sb;
+
+ spin_lock(&sbi->old_work_lock);
+ sbi->work_queued = 0;
+ spin_unlock(&sbi->old_work_lock);
+
reiserfs_sync_fs(s, 1);
}
+void reiserfs_schedule_old_flush(struct super_block *s)
+{
+ struct reiserfs_sb_info *sbi = REISERFS_SB(s);
+ unsigned long delay;
+
+ if (s->s_flags & MS_RDONLY)
+ return;
+
+ spin_lock(&sbi->old_work_lock);
+ if (!sbi->work_queued) {
+ delay = msecs_to_jiffies(dirty_writeback_interval * 10);
+ queue_delayed_work(system_long_wq, &sbi->old_work, delay);
+ sbi->work_queued = 1;
+ }
+ spin_unlock(&sbi->old_work_lock);
+}
+
+static void cancel_old_flush(struct super_block *s)
+{
+ struct reiserfs_sb_info *sbi = REISERFS_SB(s);
+
+ cancel_delayed_work_sync(&REISERFS_SB(s)->old_work);
+ spin_lock(&sbi->old_work_lock);
+ sbi->work_queued = 0;
+ spin_unlock(&sbi->old_work_lock);
+}
+
static int reiserfs_freeze(struct super_block *s)
{
struct reiserfs_transaction_handle th;
+
+ cancel_old_flush(s);
+
reiserfs_write_lock(s);
if (!(s->s_flags & MS_RDONLY)) {
int err = journal_begin(&th, s, 1);
journal_end_sync(&th, s, 1);
}
}
- s->s_dirt = 0;
reiserfs_write_unlock(s);
return 0;
}
reiserfs_write_lock(s);
- if (s->s_dirt)
- reiserfs_write_super(s);
-
/* change file system state to current state if it was mounted with read-write permissions */
if (!(s->s_flags & MS_RDONLY)) {
if (!journal_begin(&th, s, 10)) {
.dirty_inode = reiserfs_dirty_inode,
.evict_inode = reiserfs_evict_inode,
.put_super = reiserfs_put_super,
- .write_super = reiserfs_write_super,
.sync_fs = reiserfs_sync_fs,
.freeze_fs = reiserfs_freeze,
.unfreeze_fs = reiserfs_unfreeze,
err = journal_end(&th, s, 10);
if (err)
goto out_err;
- s->s_dirt = 0;
if (!(*mount_flags & MS_RDONLY)) {
dquot_resume(s, -1);
return -ENOMEM;
s->s_fs_info = sbi;
/* Set default values for options: non-aggressive tails, RO on errors */
- REISERFS_SB(s)->s_mount_opt |= (1 << REISERFS_SMALLTAIL);
- REISERFS_SB(s)->s_mount_opt |= (1 << REISERFS_ERROR_RO);
- REISERFS_SB(s)->s_mount_opt |= (1 << REISERFS_BARRIER_FLUSH);
+ sbi->s_mount_opt |= (1 << REISERFS_SMALLTAIL);
+ sbi->s_mount_opt |= (1 << REISERFS_ERROR_RO);
+ sbi->s_mount_opt |= (1 << REISERFS_BARRIER_FLUSH);
/* no preallocation minimum, be smart in
reiserfs_file_write instead */
- REISERFS_SB(s)->s_alloc_options.preallocmin = 0;
+ sbi->s_alloc_options.preallocmin = 0;
/* Preallocate by 16 blocks (17-1) at once */
- REISERFS_SB(s)->s_alloc_options.preallocsize = 17;
+ sbi->s_alloc_options.preallocsize = 17;
/* setup default block allocator options */
reiserfs_init_alloc_options(s);
- mutex_init(&REISERFS_SB(s)->lock);
- REISERFS_SB(s)->lock_depth = -1;
+ spin_lock_init(&sbi->old_work_lock);
+ INIT_DELAYED_WORK(&sbi->old_work, flush_old_commits);
+ mutex_init(&sbi->lock);
+ sbi->lock_depth = -1;
jdev_name = NULL;
if (reiserfs_parse_options
goto error_unlocked;
}
if (jdev_name && jdev_name[0]) {
- REISERFS_SB(s)->s_jdev = kstrdup(jdev_name, GFP_KERNEL);
- if (!REISERFS_SB(s)->s_jdev) {
+ sbi->s_jdev = kstrdup(jdev_name, GFP_KERNEL);
+ if (!sbi->s_jdev) {
SWARN(silent, s, "", "Cannot allocate memory for "
"journal device name");
goto error;
/* make data=ordered the default */
if (!reiserfs_data_log(s) && !reiserfs_data_ordered(s) &&
!reiserfs_data_writeback(s)) {
- REISERFS_SB(s)->s_mount_opt |= (1 << REISERFS_DATA_ORDERED);
+ sbi->s_mount_opt |= (1 << REISERFS_DATA_ORDERED);
}
if (reiserfs_data_log(s)) {
reiserfs_write_unlock(s);
}
+ cancel_delayed_work_sync(&REISERFS_SB(s)->old_work);
+
reiserfs_free_bitmap_cache(s);
if (SB_BUFFER_WITH_SB(s))
brelse(SB_BUFFER_WITH_SB(s));
return ret;
}
-#ifdef HAVE_SET_RESTORE_SIGMASK
static long do_pselect(int n, fd_set __user *inp, fd_set __user *outp,
fd_set __user *exp, struct timespec __user *tsp,
const sigset_t __user *sigmask, size_t sigsetsize)
return do_pselect(n, inp, outp, exp, tsp, up, sigsetsize);
}
-#endif /* HAVE_SET_RESTORE_SIGMASK */
#ifdef __ARCH_WANT_SYS_OLD_SELECT
struct sel_arg_struct {
return ret;
}
-#ifdef HAVE_SET_RESTORE_SIGMASK
SYSCALL_DEFINE5(ppoll, struct pollfd __user *, ufds, unsigned int, nfds,
struct timespec __user *, tsp, const sigset_t __user *, sigmask,
size_t, sigsetsize)
return ret;
}
-#endif /* HAVE_SET_RESTORE_SIGMASK */
if (ufd < 0)
kfree(ctx);
} else {
- struct file *file = fget(ufd);
+ int fput_needed;
+ struct file *file = fget_light(ufd, &fput_needed);
if (!file)
return -EBADF;
ctx = file->private_data;
if (file->f_op != &signalfd_fops) {
- fput(file);
+ fput_light(file, fput_needed);
return -EINVAL;
}
spin_lock_irq(¤t->sighand->siglock);
spin_unlock_irq(¤t->sighand->siglock);
wake_up(¤t->sighand->signalfd_wqh);
- fput(file);
+ fput_light(file, fput_needed);
}
return ufd;
mutex_lock_nested(&inode->i_mutex, I_MUTEX_CHILD);
ret = file_remove_suid(out);
if (!ret) {
- file_update_time(out);
- ret = splice_from_pipe_feed(pipe, &sd, pipe_to_file);
+ ret = file_update_time(out);
+ if (!ret)
+ ret = splice_from_pipe_feed(pipe, &sd,
+ pipe_to_file);
}
mutex_unlock(&inode->i_mutex);
} while (ret > 0);
*/
static int get_iovec_page_array(const struct iovec __user *iov,
unsigned int nr_vecs, struct page **pages,
- struct partial_page *partial, int aligned,
+ struct partial_page *partial, bool aligned,
unsigned int pipe_buffers)
{
int buffers = 0, error = 0;
return -ENOMEM;
spd.nr_pages = get_iovec_page_array(iov, nr_segs, spd.pages,
- spd.partial, flags & SPLICE_F_GIFT,
+ spd.partial, false,
pipe->buffers);
if (spd.nr_pages <= 0)
ret = spd.nr_pages;
int fd_statfs(int fd, struct kstatfs *st)
{
- struct file *file = fget(fd);
+ int fput_needed;
+ struct file *file = fget_light(fd, &fput_needed);
int error = -EBADF;
if (file) {
error = vfs_statfs(&file->f_path, st);
- fput(file);
+ fput_light(file, fput_needed);
}
return error;
}
{
struct file *file;
int ret = -EBADF;
+ int fput_needed;
- file = fget(fd);
+ file = fget_light(fd, &fput_needed);
if (file) {
ret = vfs_fsync(file, datasync);
- fput(file);
+ fput_light(file, fput_needed);
}
return ret;
}
struct ubifs_inode *ui = ubifs_inode(inode);
mutex_lock(&ui->ui_mutex);
- stat->dev = inode->i_sb->s_dev;
- stat->ino = inode->i_ino;
- stat->mode = inode->i_mode;
- stat->nlink = inode->i_nlink;
- stat->uid = inode->i_uid;
- stat->gid = inode->i_gid;
- stat->rdev = inode->i_rdev;
- stat->atime = inode->i_atime;
- stat->mtime = inode->i_mtime;
- stat->ctime = inode->i_ctime;
+ generic_fillattr(inode, stat);
stat->blksize = UBIFS_BLOCK_SIZE;
stat->size = ui->ui_size;
fid->udf.parent_partref,
fid->udf.parent_generation);
}
-static int udf_encode_fh(struct dentry *de, __u32 *fh, int *lenp,
- int connectable)
+static int udf_encode_fh(struct inode *inode, __u32 *fh, int *lenp,
+ struct inode *parent)
{
int len = *lenp;
- struct inode *inode = de->d_inode;
struct kernel_lb_addr location = UDF_I(inode)->i_location;
struct fid *fid = (struct fid *)fh;
int type = FILEID_UDF_WITHOUT_PARENT;
- if (connectable && (len < 5)) {
+ if (parent && (len < 5)) {
*lenp = 5;
return 255;
} else if (len < 3) {
fid->udf.partref = location.partitionReferenceNum;
fid->udf.generation = inode->i_generation;
- if (connectable && !S_ISDIR(inode->i_mode)) {
- spin_lock(&de->d_lock);
- inode = de->d_parent->d_inode;
- location = UDF_I(inode)->i_location;
+ if (parent) {
+ location = UDF_I(parent)->i_location;
fid->udf.parent_block = location.logicalBlockNum;
fid->udf.parent_partref = location.partitionReferenceNum;
fid->udf.parent_generation = inode->i_generation;
- spin_unlock(&de->d_lock);
*lenp = 5;
type = FILEID_UDF_WITH_PARENT;
}
goto out;
if (filename == NULL && dfd != AT_FDCWD) {
+ int fput_needed;
struct file *file;
if (flags & AT_SYMLINK_NOFOLLOW)
goto out;
- file = fget(dfd);
+ file = fget_light(dfd, &fput_needed);
error = -EBADF;
if (!file)
goto out;
error = utimes_common(&file->f_path, times);
- fput(file);
+ fput_light(file, fput_needed);
} else {
struct path path;
int lookup_flags = 0;
SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name,
const void __user *,value, size_t, size, int, flags)
{
+ int fput_needed;
struct file *f;
struct dentry *dentry;
int error = -EBADF;
- f = fget(fd);
+ f = fget_light(fd, &fput_needed);
if (!f)
return error;
dentry = f->f_path.dentry;
error = setxattr(dentry, name, value, size, flags);
mnt_drop_write_file(f);
}
- fput(f);
+ fput_light(f, fput_needed);
return error;
}
SYSCALL_DEFINE4(fgetxattr, int, fd, const char __user *, name,
void __user *, value, size_t, size)
{
+ int fput_needed;
struct file *f;
ssize_t error = -EBADF;
- f = fget(fd);
+ f = fget_light(fd, &fput_needed);
if (!f)
return error;
audit_inode(NULL, f->f_path.dentry);
error = getxattr(f->f_path.dentry, name, value, size);
- fput(f);
+ fput_light(f, fput_needed);
return error;
}
SYSCALL_DEFINE3(flistxattr, int, fd, char __user *, list, size_t, size)
{
+ int fput_needed;
struct file *f;
ssize_t error = -EBADF;
- f = fget(fd);
+ f = fget_light(fd, &fput_needed);
if (!f)
return error;
audit_inode(NULL, f->f_path.dentry);
error = listxattr(f->f_path.dentry, list, size);
- fput(f);
+ fput_light(f, fput_needed);
return error;
}
SYSCALL_DEFINE2(fremovexattr, int, fd, const char __user *, name)
{
+ int fput_needed;
struct file *f;
struct dentry *dentry;
int error = -EBADF;
- f = fget(fd);
+ f = fget_light(fd, &fput_needed);
if (!f)
return error;
dentry = f->f_path.dentry;
error = removexattr(dentry, name);
mnt_drop_write_file(f);
}
- fput(f);
+ fput_light(f, fput_needed);
return error;
}
}
void *
-kmem_alloc(size_t size, unsigned int __nocast flags)
+kmem_alloc(size_t size, xfs_km_flags_t flags)
{
int retries = 0;
gfp_t lflags = kmem_flags_convert(flags);
}
void *
-kmem_zalloc(size_t size, unsigned int __nocast flags)
+kmem_zalloc(size_t size, xfs_km_flags_t flags)
{
void *ptr;
void *
kmem_realloc(const void *ptr, size_t newsize, size_t oldsize,
- unsigned int __nocast flags)
+ xfs_km_flags_t flags)
{
void *new;
}
void *
-kmem_zone_alloc(kmem_zone_t *zone, unsigned int __nocast flags)
+kmem_zone_alloc(kmem_zone_t *zone, xfs_km_flags_t flags)
{
int retries = 0;
gfp_t lflags = kmem_flags_convert(flags);
}
void *
-kmem_zone_zalloc(kmem_zone_t *zone, unsigned int __nocast flags)
+kmem_zone_zalloc(kmem_zone_t *zone, xfs_km_flags_t flags)
{
void *ptr;
* General memory allocation interfaces
*/
-#define KM_SLEEP 0x0001u
-#define KM_NOSLEEP 0x0002u
-#define KM_NOFS 0x0004u
-#define KM_MAYFAIL 0x0008u
+typedef unsigned __bitwise xfs_km_flags_t;
+#define KM_SLEEP ((__force xfs_km_flags_t)0x0001u)
+#define KM_NOSLEEP ((__force xfs_km_flags_t)0x0002u)
+#define KM_NOFS ((__force xfs_km_flags_t)0x0004u)
+#define KM_MAYFAIL ((__force xfs_km_flags_t)0x0008u)
/*
* We use a special process flag to avoid recursive callbacks into
* warnings, so we explicitly skip any generic ones (silly of us).
*/
static inline gfp_t
-kmem_flags_convert(unsigned int __nocast flags)
+kmem_flags_convert(xfs_km_flags_t flags)
{
gfp_t lflags;
return lflags;
}
-extern void *kmem_alloc(size_t, unsigned int __nocast);
-extern void *kmem_zalloc(size_t, unsigned int __nocast);
-extern void *kmem_realloc(const void *, size_t, size_t, unsigned int __nocast);
+extern void *kmem_alloc(size_t, xfs_km_flags_t);
+extern void *kmem_zalloc(size_t, xfs_km_flags_t);
+extern void *kmem_realloc(const void *, size_t, size_t, xfs_km_flags_t);
extern void kmem_free(const void *);
static inline void *kmem_zalloc_large(size_t size)
kmem_cache_destroy(zone);
}
-extern void *kmem_zone_alloc(kmem_zone_t *, unsigned int __nocast);
-extern void *kmem_zone_zalloc(kmem_zone_t *, unsigned int __nocast);
+extern void *kmem_zone_alloc(kmem_zone_t *, xfs_km_flags_t);
+extern void *kmem_zone_zalloc(kmem_zone_t *, xfs_km_flags_t);
#endif /* __XFS_SUPPORT_KMEM_H__ */
STATIC int
xfs_fs_encode_fh(
- struct dentry *dentry,
- __u32 *fh,
- int *max_len,
- int connectable)
+ struct inode *inode,
+ __u32 *fh,
+ int *max_len,
+ struct inode *parent)
{
struct fid *fid = (struct fid *)fh;
struct xfs_fid64 *fid64 = (struct xfs_fid64 *)fh;
- struct inode *inode = dentry->d_inode;
int fileid_type;
int len;
/* Directories don't need their parent encoded, they have ".." */
- if (S_ISDIR(inode->i_mode) || !connectable)
+ if (!parent)
fileid_type = FILEID_INO32_GEN;
else
fileid_type = FILEID_INO32_GEN_PARENT;
switch (fileid_type) {
case FILEID_INO32_GEN_PARENT:
- spin_lock(&dentry->d_lock);
- fid->i32.parent_ino = XFS_I(dentry->d_parent->d_inode)->i_ino;
- fid->i32.parent_gen = dentry->d_parent->d_inode->i_generation;
- spin_unlock(&dentry->d_lock);
+ fid->i32.parent_ino = XFS_I(parent)->i_ino;
+ fid->i32.parent_gen = parent->i_generation;
/*FALLTHRU*/
case FILEID_INO32_GEN:
fid->i32.ino = XFS_I(inode)->i_ino;
fid->i32.gen = inode->i_generation;
break;
case FILEID_INO32_GEN_PARENT | XFS_FILEID_TYPE_64FLAG:
- spin_lock(&dentry->d_lock);
- fid64->parent_ino = XFS_I(dentry->d_parent->d_inode)->i_ino;
- fid64->parent_gen = dentry->d_parent->d_inode->i_generation;
- spin_unlock(&dentry->d_lock);
+ fid64->parent_ino = XFS_I(parent)->i_ino;
+ fid64->parent_gen = parent->i_generation;
/*FALLTHRU*/
case FILEID_INO32_GEN | XFS_FILEID_TYPE_64FLAG:
fid64->ino = XFS_I(inode)->i_ino;
* lock above. Eventually we should look into a way to avoid
* the pointless lock roundtrip.
*/
- if (likely(!(file->f_mode & FMODE_NOCMTIME)))
- file_update_time(file);
+ if (likely(!(file->f_mode & FMODE_NOCMTIME))) {
+ error = file_update_time(file);
+ if (error)
+ return error;
+ }
/*
* If we're writing the file then make sure to clear the setuid and
int cnt,
char client,
bool permanent,
- int alloc_flags)
+ xfs_km_flags_t alloc_flags)
{
struct xlog_ticket *tic;
uint num_headers;
extern kmem_zone_t *xfs_log_ticket_zone;
struct xlog_ticket *xlog_ticket_alloc(struct log *log, int unit_bytes,
int count, char client, bool permanent,
- int alloc_flags);
+ xfs_km_flags_t alloc_flags);
static inline void
_xfs_trans_alloc(
xfs_mount_t *mp,
uint type,
- uint memflags)
+ xfs_km_flags_t memflags)
{
xfs_trans_t *tp;
* XFS transaction mechanism exported interfaces.
*/
xfs_trans_t *xfs_trans_alloc(struct xfs_mount *, uint);
-xfs_trans_t *_xfs_trans_alloc(struct xfs_mount *, uint, uint);
+xfs_trans_t *_xfs_trans_alloc(struct xfs_mount *, uint, xfs_km_flags_t);
xfs_trans_t *xfs_trans_dup(xfs_trans_t *);
int xfs_trans_reserve(xfs_trans_t *, uint, uint, uint,
uint, uint);
header-y += ioctl.h
header-y += ioctls.h
header-y += ipcbuf.h
+header-y += kvm_para.h
header-y += mman-common.h
header-y += mman.h
header-y += msgbuf.h
#error Inconsistent word size. Check asm/bitsperlong.h
#endif
+#ifndef BITS_PER_LONG_LONG
+#define BITS_PER_LONG_LONG 64
+#endif
+
#endif /* __KERNEL__ */
#endif /* __ASM_GENERIC_BITS_PER_LONG */
#endif /* __HAVE_ARCH_PMD_WRITE */
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
+#ifndef pmd_read_atomic
+static inline pmd_t pmd_read_atomic(pmd_t *pmdp)
+{
+ /*
+ * Depend on compiler for an atomic pmd read. NOTE: this is
+ * only going to work, if the pmdval_t isn't larger than
+ * an unsigned long.
+ */
+ return *pmdp;
+}
+#endif
+
/*
* This function is meant to be used by sites walking pagetables with
* the mmap_sem hold in read mode to protect against MADV_DONTNEED and
* undefined so behaving like if the pmd was none is safe (because it
* can return none anyway). The compiler level barrier() is critically
* important to compute the two checks atomically on the same pmdval.
+ *
+ * For 32bit kernels with a 64bit large pmd_t this automatically takes
+ * care of reading the pmd atomically to avoid SMP race conditions
+ * against pmd_populate() when the mmap_sem is hold for reading by the
+ * caller (a special atomic read not done by "gcc" as in the generic
+ * version above, is also needed when THP is disabled because the page
+ * fault can populate the pmd from under us).
*/
static inline int pmd_none_or_trans_huge_or_clear_bad(pmd_t *pmd)
{
- /* depend on compiler for an atomic pmd read */
- pmd_t pmdval = *pmd;
+ pmd_t pmdval = pmd_read_atomic(pmd);
/*
* The barrier will stabilize the pmdval in a register or on
* the stack so that it will stop changing under the code.
typedef unsigned int __kernel_mode_t;
#endif
-#ifndef __kernel_nlink_t
-typedef __kernel_ulong_t __kernel_nlink_t;
-#endif
-
#ifndef __kernel_pid_t
typedef int __kernel_pid_t;
#endif
static __inline__ void *drm_calloc_large(size_t nmemb, size_t size)
{
- if (size != 0 && nmemb > ULONG_MAX / size)
+ if (size != 0 && nmemb > SIZE_MAX / size)
return NULL;
if (size * nmemb <= PAGE_SIZE)
/* Modeled after cairo's malloc_ab, it's like calloc but without the zeroing. */
static __inline__ void *drm_malloc_ab(size_t nmemb, size_t size)
{
- if (size != 0 && nmemb > ULONG_MAX / size)
+ if (size != 0 && nmemb > SIZE_MAX / size)
return NULL;
if (size * nmemb <= PAGE_SIZE)
header-y += kdev_t.h
header-y += kernel.h
header-y += kernelcapi.h
+header-y += kernel-page-flags.h
+header-y += kexec.h
header-y += keyboard.h
header-y += keyctl.h
header-y += l2tp.h
#ifndef _LINUX_APPLE_BL_H
#define _LINUX_APPLE_BL_H
-#ifdef CONFIG_BACKLIGHT_APPLE
+#if defined(CONFIG_BACKLIGHT_APPLE) || defined(CONFIG_BACKLIGHT_APPLE_MODULE)
extern int apple_bl_register(void);
extern void apple_bl_unregister(void);
extern void bvec_free_bs(struct bio_set *, struct bio_vec *, unsigned int);
extern unsigned int bvec_nr_vecs(unsigned short idx);
+#ifdef CONFIG_BLK_CGROUP
+int bio_associate_current(struct bio *bio);
+void bio_disassociate_task(struct bio *bio);
+#else /* CONFIG_BLK_CGROUP */
+static inline int bio_associate_current(struct bio *bio) { return -ENOENT; }
+static inline void bio_disassociate_task(struct bio *bio) { }
+#endif /* CONFIG_BLK_CGROUP */
+
/*
* bio_set is used to allow other portions of the IO system to
* allocate their own private memory pools for bio and iovec structures.
struct bio_integrity_payload;
struct page;
struct block_device;
+struct io_context;
+struct cgroup_subsys_state;
typedef void (bio_end_io_t) (struct bio *, int);
typedef void (bio_destructor_t) (struct bio *);
bio_end_io_t *bi_end_io;
void *bi_private;
+#ifdef CONFIG_BLK_CGROUP
+ /*
+ * Optional ioc and css associated with this bio. Put on bio
+ * release. Read comment on top of bio_associate_current().
+ */
+ struct io_context *bi_ioc;
+ struct cgroup_subsys_state *bi_css;
+#endif
#if defined(CONFIG_BLK_DEV_INTEGRITY)
struct bio_integrity_payload *bi_integrity; /* data integrity */
#endif
struct request;
struct sg_io_hdr;
struct bsg_job;
+struct blkcg_gq;
#define BLKDEV_MIN_RQ 4
#define BLKDEV_MAX_RQ 128 /* Default maximum */
+/*
+ * Maximum number of blkcg policies allowed to be registered concurrently.
+ * Defined here to simplify include dependency.
+ */
+#define BLKCG_MAX_POLS 2
+
struct request;
typedef void (rq_end_io_fn)(struct request *, int);
struct list_head timeout_list;
struct list_head icq_list;
+#ifdef CONFIG_BLK_CGROUP
+ DECLARE_BITMAP (blkcg_pols, BLKCG_MAX_POLS);
+ struct blkcg_gq *root_blkg;
+ struct list_head blkg_list;
+#endif
struct queue_limits limits;
struct mutex sysfs_lock;
+ int bypass_depth;
+
#if defined(CONFIG_BLK_DEV_BSG)
bsg_job_fn *bsg_job_fn;
int bsg_job_size;
struct bsg_class_device bsg_dev;
#endif
+#ifdef CONFIG_BLK_CGROUP
+ struct list_head all_q_node;
+#endif
#ifdef CONFIG_BLK_DEV_THROTTLING
/* Throttle data */
struct throtl_data *td;
#define QUEUE_FLAG_SYNCFULL 3 /* read queue has been filled */
#define QUEUE_FLAG_ASYNCFULL 4 /* write queue has been filled */
#define QUEUE_FLAG_DEAD 5 /* queue being torn down */
-#define QUEUE_FLAG_ELVSWITCH 6 /* don't use elevator, just do FIFO */
+#define QUEUE_FLAG_BYPASS 6 /* act as dumb FIFO queue */
#define QUEUE_FLAG_BIDI 7 /* queue supports bidi requests */
#define QUEUE_FLAG_NOMERGES 8 /* disable merge attempts */
#define QUEUE_FLAG_SAME_COMP 9 /* complete on same CPU-group */
#define blk_queue_tagged(q) test_bit(QUEUE_FLAG_QUEUED, &(q)->queue_flags)
#define blk_queue_stopped(q) test_bit(QUEUE_FLAG_STOPPED, &(q)->queue_flags)
#define blk_queue_dead(q) test_bit(QUEUE_FLAG_DEAD, &(q)->queue_flags)
+#define blk_queue_bypass(q) test_bit(QUEUE_FLAG_BYPASS, &(q)->queue_flags)
#define blk_queue_nomerges(q) test_bit(QUEUE_FLAG_NOMERGES, &(q)->queue_flags)
#define blk_queue_noxmerges(q) \
test_bit(QUEUE_FLAG_NOXMERGES, &(q)->queue_flags)
extern int reserve_bootmem_generic(unsigned long addr, unsigned long size,
int flags);
-extern void *alloc_bootmem_section(unsigned long size,
- unsigned long section_nr);
-
#ifdef CONFIG_HAVE_ARCH_ALLOC_REMAP
extern void *alloc_remap(int nid, unsigned long size);
#else
#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
#define BUILD_BUG_ON_NULL(e) ((void *)sizeof(struct { int:-!!(e); }))
+/*
+ * BUILD_BUG_ON_INVALID() permits the compiler to check the validity of the
+ * expression but avoids the generation of any code, even if that expression
+ * has side-effects.
+ */
+#define BUILD_BUG_ON_INVALID(e) ((void)(sizeof((__force long)(e))))
+
/**
* BUILD_BUG_ON - break compile if a condition is true.
* @condition: the condition which the compiler should know is false.
struct ceph_auth_client;
struct ceph_authorizer;
+struct ceph_auth_handshake {
+ struct ceph_authorizer *authorizer;
+ void *authorizer_buf;
+ size_t authorizer_buf_len;
+ void *authorizer_reply_buf;
+ size_t authorizer_reply_buf_len;
+};
+
struct ceph_auth_client_ops {
const char *name;
* the response to authenticate the service.
*/
int (*create_authorizer)(struct ceph_auth_client *ac, int peer_type,
- struct ceph_authorizer **a,
- void **buf, size_t *len,
- void **reply_buf, size_t *reply_len);
+ struct ceph_auth_handshake *auth);
int (*verify_authorizer_reply)(struct ceph_auth_client *ac,
struct ceph_authorizer *a, size_t len);
void (*destroy_authorizer)(struct ceph_auth_client *ac,
__le32 fl_object_stripe_unit; /* UNUSED. for per-object parity, if any */
/* object -> pg layout */
- __le32 fl_pg_preferred; /* preferred primary for pg (-1 for none) */
+ __le32 fl_unused; /* unused; used to be preferred primary (-1) */
__le32 fl_pg_pool; /* namespace, crush ruleset, rep level */
} __attribute__ ((packed));
__le32 stripe_count; /* ... */
__le32 object_size;
__le32 file_replication;
- __le32 preferred;
+ __le32 unused; /* used to be preferred osd */
} __attribute__ ((packed)) open;
struct {
__le32 flags;
/*
* bounds check input.
*/
+static inline int ceph_has_room(void **p, void *end, size_t n)
+{
+ return end >= *p && n <= end - *p;
+}
+
#define ceph_decode_need(p, end, n, bad) \
do { \
- if (unlikely(*(p) + (n) > (end))) \
+ if (!likely(ceph_has_room(p, end, n))) \
goto bad; \
} while (0)
#define ceph_encode_need(p, end, n, bad) \
do { \
- if (unlikely(*(p) + (n) > (end))) \
+ if (!likely(ceph_has_room(p, end, n))) \
goto bad; \
} while (0)
void (*dispatch) (struct ceph_connection *con, struct ceph_msg *m);
/* authorize an outgoing connection */
- int (*get_authorizer) (struct ceph_connection *con,
- void **buf, int *len, int *proto,
- void **reply_buf, int *reply_len, int force_new);
+ struct ceph_auth_handshake *(*get_authorizer) (
+ struct ceph_connection *con,
+ int *proto, int force_new);
int (*verify_authorizer_reply) (struct ceph_connection *con, int len);
int (*invalidate_authorizer)(struct ceph_connection *con);
#include <linux/mempool.h>
#include <linux/rbtree.h>
-#include "types.h"
-#include "osdmap.h"
-#include "messenger.h"
+#include <linux/ceph/types.h>
+#include <linux/ceph/osdmap.h>
+#include <linux/ceph/messenger.h>
+#include <linux/ceph/auth.h>
/*
* Maximum object name size
struct list_head o_requests;
struct list_head o_linger_requests;
struct list_head o_osd_lru;
- struct ceph_authorizer *o_authorizer;
- void *o_authorizer_buf, *o_authorizer_reply_buf;
- size_t o_authorizer_buf_len, o_authorizer_reply_buf_len;
+ struct ceph_auth_handshake o_auth;
unsigned long lru_ttl;
int o_marked_for_keepalive;
struct list_head o_keepalive_item;
#define ceph_file_layout_cas_hash(l) ((__s32)le32_to_cpu((l).fl_cas_hash))
#define ceph_file_layout_object_su(l) \
((__s32)le32_to_cpu((l).fl_object_stripe_unit))
-#define ceph_file_layout_pg_preferred(l) \
- ((__s32)le32_to_cpu((l).fl_pg_preferred))
#define ceph_file_layout_pg_pool(l) \
((__s32)le32_to_cpu((l).fl_pg_pool))
#ifndef _LINUX_COMPACTION_H
#define _LINUX_COMPACTION_H
+#include <linux/node.h>
+
/* Return values for compact_zone() and try_to_compact_pages() */
/* compaction didn't start as it was not possible or direct reclaim was more suitable */
#define COMPACT_SKIPPED 0
/* The full zone was compacted */
#define COMPACT_COMPLETE 3
+/*
+ * compaction supports three modes
+ *
+ * COMPACT_ASYNC_MOVABLE uses asynchronous migration and only scans
+ * MIGRATE_MOVABLE pageblocks as migration sources and targets.
+ * COMPACT_ASYNC_UNMOVABLE uses asynchronous migration and only scans
+ * MIGRATE_MOVABLE pageblocks as migration sources.
+ * MIGRATE_UNMOVABLE pageblocks are scanned as potential migration
+ * targets and convers them to MIGRATE_MOVABLE if possible
+ * COMPACT_SYNC uses synchronous migration and scans all pageblocks
+ */
+enum compact_mode {
+ COMPACT_ASYNC_MOVABLE,
+ COMPACT_ASYNC_UNMOVABLE,
+ COMPACT_SYNC,
+};
+
#ifdef CONFIG_COMPACTION
extern int sysctl_compact_memory;
extern int sysctl_compaction_handler(struct ctl_table *table, int write,
const struct compat_iovec __user *uvector,
unsigned long nr_segs,
unsigned long fast_segs, struct iovec *fast_pointer,
- struct iovec **ret_pointer,
- int check_access);
+ struct iovec **ret_pointer);
extern void __user *compat_alloc_user_space(unsigned long len);
#define hotcpu_notifier(fn, pri) cpu_notifier(fn, pri)
#define register_hotcpu_notifier(nb) register_cpu_notifier(nb)
#define unregister_hotcpu_notifier(nb) unregister_cpu_notifier(nb)
+void clear_tasks_mm_cpumask(int cpu);
int cpu_down(unsigned int cpu);
#ifdef CONFIG_ARCH_CPU_PROBE_RELEASE
* @task: The task to query
*
* Access the objective credentials of a task. The caller must hold the RCU
- * readlock or the task must be dead and unable to change its own credentials.
+ * readlock.
*
* The result of this function should not be passed directly to get_cred();
* rather get_task_cred() should be used instead.
*/
-#define __task_cred(task) \
- ({ \
- const struct task_struct *__t = (task); \
- rcu_dereference_check(__t->real_cred, \
- task_is_dead(__t)); \
- })
+#define __task_cred(task) \
+ rcu_dereference((task)->real_cred)
/**
* get_current_cred - Get the current task's subjective credentials
struct crush_bucket **buckets;
struct crush_rule **rules;
- /*
- * Parent pointers to identify the parent bucket a device or
- * bucket in the hierarchy. If an item appears more than
- * once, this is the _last_ time it appeared (where buckets
- * are processed in bucket id order, from -1 on down to
- * -max_buckets.
- */
- __u32 *bucket_parents;
- __u32 *device_parents;
-
__s32 max_buckets;
__u32 max_rules;
__s32 max_devices;
/* crush.c */
-extern int crush_get_bucket_item_weight(struct crush_bucket *b, int pos);
-extern void crush_calc_parents(struct crush_map *map);
+extern int crush_get_bucket_item_weight(const struct crush_bucket *b, int pos);
extern void crush_destroy_bucket_uniform(struct crush_bucket_uniform *b);
extern void crush_destroy_bucket_list(struct crush_bucket_list *b);
extern void crush_destroy_bucket_tree(struct crush_bucket_tree *b);
extern void crush_destroy_bucket(struct crush_bucket *b);
extern void crush_destroy(struct crush_map *map);
+static inline int crush_calc_tree_node(int i)
+{
+ return ((i+1) << 1)-1;
+}
+
#endif
#include "crush.h"
-extern int crush_find_rule(struct crush_map *map, int pool, int type, int size);
-extern int crush_do_rule(struct crush_map *map,
+extern int crush_find_rule(const struct crush_map *map, int ruleset, int type, int size);
+extern int crush_do_rule(const struct crush_map *map,
int ruleno,
int x, int *result, int result_max,
- int forcefeed, /* -1 for none */
- __u32 *weights);
+ const __u32 *weights);
#endif
dir, flags, NULL);
}
+#ifdef CONFIG_RAPIDIO_DMA_ENGINE
+struct rio_dma_ext;
+static inline struct dma_async_tx_descriptor *dmaengine_prep_rio_sg(
+ struct dma_chan *chan, struct scatterlist *sgl, unsigned int sg_len,
+ enum dma_transfer_direction dir, unsigned long flags,
+ struct rio_dma_ext *rio_ext)
+{
+ return chan->device->device_prep_slave_sg(chan, sgl, sg_len,
+ dir, flags, rio_ext);
+}
+#endif
+
static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_cyclic(
struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len,
size_t period_len, enum dma_transfer_direction dir)
extern const char *drbd_buildtag(void);
-#define REL_VERSION "8.3.11"
+#define REL_VERSION "8.3.13"
#define API_VERSION 88
#define PRO_VERSION_MIN 86
#define PRO_VERSION_MAX 96
ERR_OPEN_MD_DISK = 105,
ERR_DISK_NOT_BDEV = 107,
ERR_MD_NOT_BDEV = 108,
- ERR_DISK_TO_SMALL = 111,
- ERR_MD_DISK_TO_SMALL = 112,
+ ERR_DISK_TOO_SMALL = 111,
+ ERR_MD_DISK_TOO_SMALL = 112,
ERR_BDCLAIM_DISK = 114,
ERR_BDCLAIM_MD_DISK = 115,
ERR_MD_IDX_INVALID = 116,
#define DRBD_TIMEOUT_MAX 600
#define DRBD_TIMEOUT_DEF 60 /* 6 seconds */
+ /* If backing disk takes longer than disk_timeout, mark the disk as failed */
+#define DRBD_DISK_TIMEOUT_MIN 0 /* 0 = disabled */
+#define DRBD_DISK_TIMEOUT_MAX 6000 /* 10 Minutes */
+#define DRBD_DISK_TIMEOUT_DEF 0 /* disabled */
+
/* active connection retries when C_WF_CONNECTION */
#define DRBD_CONNECT_INT_MIN 1
#define DRBD_CONNECT_INT_MAX 120
/* timeout for the ping packets.*/
#define DRBD_PING_TIMEO_MIN 1
-#define DRBD_PING_TIMEO_MAX 100
+#define DRBD_PING_TIMEO_MAX 300
#define DRBD_PING_TIMEO_DEF 5
/* max number of write requests between write barriers */
NL_INTEGER( 56, T_MAY_IGNORE, max_bio_bvecs)
NL_BIT( 57, T_MAY_IGNORE, no_disk_barrier)
NL_BIT( 58, T_MAY_IGNORE, no_disk_drain)
+ NL_INTEGER( 89, T_MAY_IGNORE, disk_timeout)
)
-NL_PACKET(detach, 4, )
+NL_PACKET(detach, 4,
+ NL_BIT( 88, T_MANDATORY, detach_force)
+)
NL_PACKET(net_conf, 5,
NL_STRING( 8, T_MANDATORY, my_addr, 128)
#define DEV_FLAG_X32 BIT(DEV_X32)
#define DEV_FLAG_X64 BIT(DEV_X64)
+/**
+ * enum hw_event_mc_err_type - type of the detected error
+ *
+ * @HW_EVENT_ERR_CORRECTED: Corrected Error - Indicates that an ECC
+ * corrected error was detected
+ * @HW_EVENT_ERR_UNCORRECTED: Uncorrected Error - Indicates an error that
+ * can't be corrected by ECC, but it is not
+ * fatal (maybe it is on an unused memory area,
+ * or the memory controller could recover from
+ * it for example, by re-trying the operation).
+ * @HW_EVENT_ERR_FATAL: Fatal Error - Uncorrected error that could not
+ * be recovered.
+ */
+enum hw_event_mc_err_type {
+ HW_EVENT_ERR_CORRECTED,
+ HW_EVENT_ERR_UNCORRECTED,
+ HW_EVENT_ERR_FATAL,
+};
+
/**
* enum mem_type - memory types. For a more detailed reference, please see
* http://en.wikipedia.org/wiki/DRAM
* PS - I enjoyed writing all that about as much as you enjoyed reading it.
*/
+/**
+ * enum edac_mc_layer - memory controller hierarchy layer
+ *
+ * @EDAC_MC_LAYER_BRANCH: memory layer is named "branch"
+ * @EDAC_MC_LAYER_CHANNEL: memory layer is named "channel"
+ * @EDAC_MC_LAYER_SLOT: memory layer is named "slot"
+ * @EDAC_MC_LAYER_CHIP_SELECT: memory layer is named "chip select"
+ *
+ * This enum is used by the drivers to tell edac_mc_sysfs what name should
+ * be used when describing a memory stick location.
+ */
+enum edac_mc_layer_type {
+ EDAC_MC_LAYER_BRANCH,
+ EDAC_MC_LAYER_CHANNEL,
+ EDAC_MC_LAYER_SLOT,
+ EDAC_MC_LAYER_CHIP_SELECT,
+};
+
+/**
+ * struct edac_mc_layer - describes the memory controller hierarchy
+ * @layer: layer type
+ * @size: number of components per layer. For example,
+ * if the channel layer has two channels, size = 2
+ * @is_virt_csrow: This layer is part of the "csrow" when old API
+ * compatibility mode is enabled. Otherwise, it is
+ * a channel
+ */
+struct edac_mc_layer {
+ enum edac_mc_layer_type type;
+ unsigned size;
+ bool is_virt_csrow;
+};
+
+/*
+ * Maximum number of layers used by the memory controller to uniquely
+ * identify a single memory stick.
+ * NOTE: Changing this constant requires not only to change the constant
+ * below, but also to change the existing code at the core, as there are
+ * some code there that are optimized for 3 layers.
+ */
+#define EDAC_MAX_LAYERS 3
+
+/**
+ * EDAC_DIMM_PTR - Macro responsible to find a pointer inside a pointer array
+ * for the element given by [layer0,layer1,layer2] position
+ *
+ * @layers: a struct edac_mc_layer array, describing how many elements
+ * were allocated for each layer
+ * @var: name of the var where we want to get the pointer
+ * (like mci->dimms)
+ * @n_layers: Number of layers at the @layers array
+ * @layer0: layer0 position
+ * @layer1: layer1 position. Unused if n_layers < 2
+ * @layer2: layer2 position. Unused if n_layers < 3
+ *
+ * For 1 layer, this macro returns &var[layer0]
+ * For 2 layers, this macro is similar to allocate a bi-dimensional array
+ * and to return "&var[layer0][layer1]"
+ * For 3 layers, this macro is similar to allocate a tri-dimensional array
+ * and to return "&var[layer0][layer1][layer2]"
+ *
+ * A loop could be used here to make it more generic, but, as we only have
+ * 3 layers, this is a little faster.
+ * By design, layers can never be 0 or more than 3. If that ever happens,
+ * a NULL is returned, causing an OOPS during the memory allocation routine,
+ * with would point to the developer that he's doing something wrong.
+ */
+#define EDAC_DIMM_PTR(layers, var, nlayers, layer0, layer1, layer2) ({ \
+ typeof(var) __p; \
+ if ((nlayers) == 1) \
+ __p = &var[layer0]; \
+ else if ((nlayers) == 2) \
+ __p = &var[(layer1) + ((layers[1]).size * (layer0))]; \
+ else if ((nlayers) == 3) \
+ __p = &var[(layer2) + ((layers[2]).size * ((layer1) + \
+ ((layers[1]).size * (layer0))))]; \
+ else \
+ __p = NULL; \
+ __p; \
+})
+
+
+/* FIXME: add the proper per-location error counts */
+struct dimm_info {
+ char label[EDAC_MC_LABEL_LEN + 1]; /* DIMM label on motherboard */
+
+ /* Memory location data */
+ unsigned location[EDAC_MAX_LAYERS];
+
+ struct mem_ctl_info *mci; /* the parent */
+
+ u32 grain; /* granularity of reported error in bytes */
+ enum dev_type dtype; /* memory device type */
+ enum mem_type mtype; /* memory dimm type */
+ enum edac_type edac_mode; /* EDAC mode for this dimm */
+
+ u32 nr_pages; /* number of pages on this dimm */
+
+ unsigned csrow, cschannel; /* Points to the old API data */
+};
+
/**
* struct rank_info - contains the information for one DIMM rank
*
* @chan_idx: channel number where the rank is (typically, 0 or 1)
* @ce_count: number of correctable errors for this rank
- * @label: DIMM label. Different ranks for the same DIMM should be
- * filled, on userspace, with the same label.
- * FIXME: The core currently won't enforce it.
* @csrow: A pointer to the chip select row structure (the parent
* structure). The location of the rank is given by
* the (csrow->csrow_idx, chan_idx) vector.
+ * @dimm: A pointer to the DIMM structure, where the DIMM label
+ * information is stored.
+ *
+ * FIXME: Currently, the EDAC core model will assume one DIMM per rank.
+ * This is a bad assumption, but it makes this patch easier. Later
+ * patches in this series will fix this issue.
*/
struct rank_info {
int chan_idx;
- u32 ce_count;
- char label[EDAC_MC_LABEL_LEN + 1];
- struct csrow_info *csrow; /* the parent */
+ struct csrow_info *csrow;
+ struct dimm_info *dimm;
+
+ u32 ce_count; /* Correctable Errors for this csrow */
};
struct csrow_info {
- unsigned long first_page; /* first page number in dimm */
- unsigned long last_page; /* last page number in dimm */
+ /* Used only by edac_mc_find_csrow_by_page() */
+ unsigned long first_page; /* first page number in csrow */
+ unsigned long last_page; /* last page number in csrow */
unsigned long page_mask; /* used for interleaving -
- * 0UL for non intlv
- */
- u32 nr_pages; /* number of pages in csrow */
- u32 grain; /* granularity of reported error in bytes */
- int csrow_idx; /* the chip-select row */
- enum dev_type dtype; /* memory device type */
+ * 0UL for non intlv */
+
+ int csrow_idx; /* the chip-select row */
+
u32 ue_count; /* Uncorrectable Errors for this csrow */
u32 ce_count; /* Correctable Errors for this csrow */
- enum mem_type mtype; /* memory csrow type */
- enum edac_type edac_mode; /* EDAC mode for this csrow */
+
struct mem_ctl_info *mci; /* the parent */
struct kobject kobj; /* sysfs kobject for this csrow */
unsigned long (*ctl_page_to_phys) (struct mem_ctl_info * mci,
unsigned long page);
int mc_idx;
- int nr_csrows;
struct csrow_info *csrows;
+ unsigned nr_csrows, num_cschannel;
+
+ /* Memory Controller hierarchy */
+ unsigned n_layers;
+ struct edac_mc_layer *layers;
+ bool mem_is_per_rank;
+
+ /*
+ * DIMM info. Will eventually remove the entire csrows_info some day
+ */
+ unsigned tot_dimms;
+ struct dimm_info *dimms;
+
/*
* FIXME - what about controllers on other busses? - IDs must be
* unique. dev pointer should be sufficiently unique, but
const char *dev_name;
char proc_name[MC_PROC_NAME_MAX_LEN + 1];
void *pvt_info;
- u32 ue_noinfo_count; /* Uncorrectable Errors w/o info */
- u32 ce_noinfo_count; /* Correctable Errors w/o info */
- u32 ue_count; /* Total Uncorrectable Errors for this MC */
- u32 ce_count; /* Total Correctable Errors for this MC */
unsigned long start_time; /* mci load start time (in jiffies) */
+ /*
+ * drivers shouldn't access those fields directly, as the core
+ * already handles that.
+ */
+ u32 ce_noinfo_count, ue_noinfo_count;
+ u32 ue_mc, ce_mc;
+ u32 *ce_per_layer[EDAC_MAX_LAYERS], *ue_per_layer[EDAC_MAX_LAYERS];
+
struct completion complete;
/* edac sysfs device control */
* by the low level driver.
*
* Set by the low level driver to provide attributes at the
- * controller level, same level as 'ue_count' and 'ce_count' above.
+ * controller level.
* An array of structures, NULL terminated
*
* If attributes are desired, then set to array of attributes
typedef void (elevator_init_icq_fn) (struct io_cq *);
typedef void (elevator_exit_icq_fn) (struct io_cq *);
-typedef int (elevator_set_req_fn) (struct request_queue *, struct request *, gfp_t);
+typedef int (elevator_set_req_fn) (struct request_queue *, struct request *,
+ struct bio *, gfp_t);
typedef void (elevator_put_req_fn) (struct request *);
typedef void (elevator_activate_req_fn) (struct request_queue *, struct request *);
typedef void (elevator_deactivate_req_fn) (struct request_queue *, struct request *);
-typedef void *(elevator_init_fn) (struct request_queue *);
+typedef int (elevator_init_fn) (struct request_queue *);
typedef void (elevator_exit_fn) (struct elevator_queue *);
struct elevator_ops
extern int elv_may_queue(struct request_queue *, int);
extern void elv_abort_queue(struct request_queue *);
extern void elv_completed_request(struct request_queue *, struct request *);
-extern int elv_set_request(struct request_queue *, struct request *, gfp_t);
+extern int elv_set_request(struct request_queue *q, struct request *rq,
+ struct bio *bio, gfp_t gfp_mask);
extern void elv_put_request(struct request_queue *, struct request *);
extern void elv_drain_elevator(struct request_queue *);
#define ENOIOCTLCMD 515 /* No ioctl command */
#define ERESTART_RESTARTBLOCK 516 /* restart by calling sys_restart_syscall */
#define EPROBE_DEFER 517 /* Driver requests probe retry */
+#define EOPENSTALE 518 /* open found a stale dentry */
/* Defined for the NFSv3 protocol */
#define EBADHANDLE 521 /* Illegal NFS file handle */
struct file *eventfd_fget(int fd);
struct eventfd_ctx *eventfd_ctx_fdget(int fd);
struct eventfd_ctx *eventfd_ctx_fileget(struct file *file);
-int eventfd_signal(struct eventfd_ctx *ctx, int n);
+__u64 eventfd_signal(struct eventfd_ctx *ctx, __u64 n);
ssize_t eventfd_ctx_read(struct eventfd_ctx *ctx, int no_wait, __u64 *cnt);
int eventfd_ctx_remove_wait_queue(struct eventfd_ctx *ctx, wait_queue_t *wait,
__u64 *cnt);
*/
struct export_operations {
- int (*encode_fh)(struct dentry *de, __u32 *fh, int *max_len,
- int connectable);
+ int (*encode_fh)(struct inode *inode, __u32 *fh, int *max_len,
+ struct inode *parent);
struct dentry * (*fh_to_dentry)(struct super_block *sb, struct fid *fid,
int fh_len, int fh_type);
struct dentry * (*fh_to_parent)(struct super_block *sb, struct fid *fid,
#define FB_EVENT_FB_UNBIND 0x0E
/* CONSOLE-SPECIFIC: remap all consoles to new fb - for vga switcheroo */
#define FB_EVENT_REMAP_ALL_CONSOLE 0x0F
+/* A hardware display blank early change occured */
+#define FB_EARLY_EVENT_BLANK 0x10
+/* A hardware display blank revert early change occured */
+#define FB_R_EARLY_EVENT_BLANK 0x11
struct fb_event {
struct fb_info *info;
#define WRITE_FUA (WRITE | REQ_SYNC | REQ_NOIDLE | REQ_FUA)
#define WRITE_FLUSH_FUA (WRITE | REQ_SYNC | REQ_NOIDLE | REQ_FLUSH | REQ_FUA)
+
+/*
+ * Flag for rw_copy_check_uvector and compat_rw_copy_check_uvector
+ * that indicates that they should check the contents of the iovec are
+ * valid, but not check the memory that the iovec elements
+ * points too.
+ */
+#define CHECK_IOVEC_ONLY -1
+
#define SEL_IN 1
#define SEL_OUT 2
#define SEL_EX 4
ssize_t (*getxattr) (struct dentry *, const char *, void *, size_t);
ssize_t (*listxattr) (struct dentry *, char *, size_t);
int (*removexattr) (struct dentry *, const char *);
- void (*truncate_range)(struct inode *, loff_t, loff_t);
int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start,
u64 len);
+ int (*update_time)(struct inode *, struct timespec *, int);
} ____cacheline_aligned;
struct seq_file;
ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector,
unsigned long nr_segs, unsigned long fast_segs,
struct iovec *fast_pointer,
- struct iovec **ret_pointer,
- int check_access);
+ struct iovec **ret_pointer);
extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *);
extern ssize_t vfs_write(struct file *, const char __user *, size_t, loff_t *);
spin_unlock(&inode->i_lock);
}
+enum file_time_flags {
+ S_ATIME = 1,
+ S_MTIME = 2,
+ S_CTIME = 4,
+ S_VERSION = 8,
+};
+
extern void touch_atime(struct path *);
static inline void file_accessed(struct file *file)
{
};
void dio_end_io(struct bio *bio, int error);
-void inode_dio_wait(struct inode *inode);
-void inode_dio_done(struct inode *inode);
ssize_t __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
struct block_device *bdev, const struct iovec *iov, loff_t offset,
offset, nr_segs, get_block, NULL, NULL,
DIO_LOCKING | DIO_SKIP_HOLES);
}
-#else
-static inline void inode_dio_wait(struct inode *inode)
-{
-}
#endif
+void inode_dio_wait(struct inode *inode);
+void inode_dio_done(struct inode *inode);
+
extern const struct file_operations generic_ro_fops;
#define special_file(m) (S_ISCHR(m)||S_ISBLK(m)||S_ISFIFO(m)||S_ISSOCK(m))
extern int inode_newsize_ok(const struct inode *, loff_t offset);
extern void setattr_copy(struct inode *inode, const struct iattr *attr);
-extern void file_update_time(struct file *file);
+extern int file_update_time(struct file *file);
extern int generic_show_options(struct seq_file *m, struct dentry *root);
extern void save_mount_options(struct super_block *sb, char *options);
#define FS_EVENTS_POSS_ON_CHILD (FS_ACCESS | FS_MODIFY | FS_ATTRIB |\
FS_CLOSE_WRITE | FS_CLOSE_NOWRITE | FS_OPEN |\
FS_MOVED_FROM | FS_MOVED_TO | FS_CREATE |\
- FS_DELETE)
+ FS_DELETE | FS_OPEN_PERM | FS_ACCESS_PERM)
#define FS_MOVE (FS_MOVED_FROM | FS_MOVED_TO)
#define genl_dereference(p) \
rcu_dereference_protected(p, lockdep_genl_is_held())
+#define MODULE_ALIAS_GENL_FAMILY(family)\
+ MODULE_ALIAS_NET_PF_PROTO_NAME(PF_NETLINK, NETLINK_GENERIC, "-family-" family)
+
#endif /* __KERNEL__ */
#endif /* __LINUX_GENERIC_NETLINK_H */
#define HPAGE_PMD_MASK HPAGE_MASK
#define HPAGE_PMD_SIZE HPAGE_SIZE
+extern bool is_vma_temporary_stack(struct vm_area_struct *vma);
+
#define transparent_hugepage_enabled(__vma) \
((transparent_hugepage_flags & \
(1<<TRANSPARENT_HUGEPAGE_FLAG) || \
__u16 flags;
#define I2C_M_TEN 0x0010 /* this is a ten bit chip address */
#define I2C_M_RD 0x0001 /* read data, from slave to master */
-#define I2C_M_NOSTART 0x4000 /* if I2C_FUNC_PROTOCOL_MANGLING */
+#define I2C_M_NOSTART 0x4000 /* if I2C_FUNC_NOSTART */
#define I2C_M_REV_DIR_ADDR 0x2000 /* if I2C_FUNC_PROTOCOL_MANGLING */
#define I2C_M_IGNORE_NAK 0x1000 /* if I2C_FUNC_PROTOCOL_MANGLING */
#define I2C_M_NO_RD_ACK 0x0800 /* if I2C_FUNC_PROTOCOL_MANGLING */
#define I2C_FUNC_I2C 0x00000001
#define I2C_FUNC_10BIT_ADDR 0x00000002
-#define I2C_FUNC_PROTOCOL_MANGLING 0x00000004 /* I2C_M_NOSTART etc. */
+#define I2C_FUNC_PROTOCOL_MANGLING 0x00000004 /* I2C_M_IGNORE_NAK etc. */
#define I2C_FUNC_SMBUS_PEC 0x00000008
+#define I2C_FUNC_NOSTART 0x00000010 /* I2C_M_NOSTART */
#define I2C_FUNC_SMBUS_BLOCK_PROC_CALL 0x00008000 /* SMBus 2.0 */
#define I2C_FUNC_SMBUS_QUICK 0x00010000
#define I2C_FUNC_SMBUS_READ_BYTE 0x00020000
extern int __must_check
request_percpu_irq(unsigned int irq, irq_handler_t handler,
const char *devname, void __percpu *percpu_dev_id);
-
-extern void exit_irq_thread(void);
#else
extern int __must_check
{
return request_irq(irq, handler, 0, devname, percpu_dev_id);
}
-
-static inline void exit_irq_thread(void) { }
#endif
extern void free_irq(unsigned int, void *);
#include <linux/workqueue.h>
enum {
- ICQ_IOPRIO_CHANGED = 1 << 0,
- ICQ_CGROUP_CHANGED = 1 << 1,
ICQ_EXITED = 1 << 2,
-
- ICQ_CHANGED_MASK = ICQ_IOPRIO_CHANGED | ICQ_CGROUP_CHANGED,
};
/*
*/
struct io_context {
atomic_long_t refcount;
+ atomic_t active_ref;
atomic_t nr_tasks;
/* all the fields below are protected by this lock */
struct work_struct release_work;
};
-static inline struct io_context *ioc_task_link(struct io_context *ioc)
+/**
+ * get_io_context_active - get active reference on ioc
+ * @ioc: ioc of interest
+ *
+ * Only iocs with active reference can issue new IOs. This function
+ * acquires an active reference on @ioc. The caller must already have an
+ * active reference on @ioc.
+ */
+static inline void get_io_context_active(struct io_context *ioc)
{
- /*
- * if ref count is zero, don't allow sharing (ioc is going away, it's
- * a race).
- */
- if (ioc && atomic_long_inc_not_zero(&ioc->refcount)) {
- atomic_inc(&ioc->nr_tasks);
- return ioc;
- }
+ WARN_ON_ONCE(atomic_long_read(&ioc->refcount) <= 0);
+ WARN_ON_ONCE(atomic_read(&ioc->active_ref) <= 0);
+ atomic_long_inc(&ioc->refcount);
+ atomic_inc(&ioc->active_ref);
+}
+
+static inline void ioc_task_link(struct io_context *ioc)
+{
+ get_io_context_active(ioc);
- return NULL;
+ WARN_ON_ONCE(atomic_read(&ioc->nr_tasks) <= 0);
+ atomic_inc(&ioc->nr_tasks);
}
struct task_struct;
#ifdef CONFIG_BLOCK
void put_io_context(struct io_context *ioc);
+void put_io_context_active(struct io_context *ioc);
void exit_io_context(struct task_struct *task);
struct io_context *get_task_io_context(struct task_struct *task,
gfp_t gfp_flags, int node);
-void ioc_ioprio_changed(struct io_context *ioc, int ioprio);
-void ioc_cgroup_changed(struct io_context *ioc);
-unsigned int icq_get_changed(struct io_cq *icq);
#else
struct io_context;
static inline void put_io_context(struct io_context *ioc) { }
#define IOMMU_FAULT_WRITE 0x1
typedef int (*iommu_fault_handler_t)(struct iommu_domain *,
- struct device *, unsigned long, int);
+ struct device *, unsigned long, int, void *);
struct iommu_domain {
struct iommu_ops *ops;
void *priv;
iommu_fault_handler_t handler;
+ void *handler_token;
};
#define IOMMU_CAP_CACHE_COHERENCY 0x1
extern int iommu_domain_has_cap(struct iommu_domain *domain,
unsigned long cap);
extern void iommu_set_fault_handler(struct iommu_domain *domain,
- iommu_fault_handler_t handler);
+ iommu_fault_handler_t handler, void *token);
extern int iommu_device_group(struct device *dev, unsigned int *groupid);
/**
* invoke it.
*/
if (domain->handler)
- ret = domain->handler(domain, dev, iova, flags);
+ ret = domain->handler(domain, dev, iova, flags,
+ domain->handler_token);
return ret;
}
}
static inline void iommu_set_fault_handler(struct iommu_domain *domain,
- iommu_fault_handler_t handler)
+ iommu_fault_handler_t handler, void *token)
{
}
};
/*
- * if process has set io priority explicitly, use that. if not, convert
- * the cpu scheduler nice value to an io priority
+ * Fallback BE priority
*/
#define IOPRIO_NORM (4)
-static inline int task_ioprio(struct io_context *ioc)
-{
- if (ioprio_valid(ioc->ioprio))
- return IOPRIO_PRIO_DATA(ioc->ioprio);
-
- return IOPRIO_NORM;
-}
-
-static inline int task_ioprio_class(struct io_context *ioc)
-{
- if (ioprio_valid(ioc->ioprio))
- return IOPRIO_PRIO_CLASS(ioc->ioprio);
-
- return IOPRIO_CLASS_BE;
-}
+/*
+ * if process has set io priority explicitly, use that. if not, convert
+ * the cpu scheduler nice value to an io priority
+ */
static inline int task_nice_ioprio(struct task_struct *task)
{
return (task_nice(task) + 20) / 5;
unsigned int mq_queues_max; /* initialized to DFLT_QUEUESMAX */
unsigned int mq_msg_max; /* initialized to DFLT_MSGMAX */
unsigned int mq_msgsize_max; /* initialized to DFLT_MSGSIZEMAX */
+ unsigned int mq_msg_default;
+ unsigned int mq_msgsize_default;
/* user_ns which owns the ipc ns */
struct user_namespace *user_ns;
#ifdef CONFIG_POSIX_MQUEUE
extern int mq_init_ns(struct ipc_namespace *ns);
-/* default values */
-#define DFLT_QUEUESMAX 256 /* max number of message queues */
-#define DFLT_MSGMAX 10 /* max number of messages in each queue */
-#define HARD_MSGMAX (32768*sizeof(void *)/4)
-#define DFLT_MSGSIZEMAX 8192 /* max message size */
+/*
+ * POSIX Message Queue default values:
+ *
+ * MIN_*: Lowest value an admin can set the maximum unprivileged limit to
+ * DFLT_*MAX: Default values for the maximum unprivileged limits
+ * DFLT_{MSG,MSGSIZE}: Default values used when the user doesn't supply
+ * an attribute to the open call and the queue must be created
+ * HARD_*: Highest value the maximums can be set to. These are enforced
+ * on CAP_SYS_RESOURCE apps as well making them inviolate (so make them
+ * suitably high)
+ *
+ * POSIX Requirements:
+ * Per app minimum openable message queues - 8. This does not map well
+ * to the fact that we limit the number of queues on a per namespace
+ * basis instead of a per app basis. So, make the default high enough
+ * that no given app should have a hard time opening 8 queues.
+ * Minimum maximum for HARD_MSGMAX - 32767. I bumped this to 65536.
+ * Minimum maximum for HARD_MSGSIZEMAX - POSIX is silent on this. However,
+ * we have run into a situation where running applications in the wild
+ * require this to be at least 5MB, and preferably 10MB, so I set the
+ * value to 16MB in hopes that this user is the worst of the bunch and
+ * the new maximum will handle anyone else. I may have to revisit this
+ * in the future.
+ */
+#define MIN_QUEUESMAX 1
+#define DFLT_QUEUESMAX 256
+#define HARD_QUEUESMAX 1024
+#define MIN_MSGMAX 1
+#define DFLT_MSG 10U
+#define DFLT_MSGMAX 10
+#define HARD_MSGMAX 65536
+#define MIN_MSGSIZEMAX 128
+#define DFLT_MSGSIZE 8192U
+#define DFLT_MSGSIZEMAX 8192
+#define HARD_MSGSIZEMAX (16*1024*1024)
#else
static inline int mq_init_ns(struct ipc_namespace *ns) { return 0; }
#endif
#include <linux/mutex.h>
#include <linux/timer.h>
#include <linux/slab.h>
+#include <crypto/hash.h>
#endif
#define journal_oom_retry 1
#define JBD2_CRC32_CHKSUM 1
#define JBD2_MD5_CHKSUM 2
#define JBD2_SHA1_CHKSUM 3
+#define JBD2_CRC32C_CHKSUM 4
#define JBD2_CRC32_CHKSUM_SIZE 4
#define JBD2_CHECKSUM_BYTES (32 / sizeof(u32))
/*
* Commit block header for storing transactional checksums:
+ *
+ * NOTE: If FEATURE_COMPAT_CHECKSUM (checksum v1) is set, the h_chksum*
+ * fields are used to store a checksum of the descriptor and data blocks.
+ *
+ * If FEATURE_INCOMPAT_CSUM_V2 (checksum v2) is set, then the h_chksum
+ * field is used to store crc32c(uuid+commit_block). Each journal metadata
+ * block gets its own checksum, and data block checksums are stored in
+ * journal_block_tag (in the descriptor). The other h_chksum* fields are
+ * not used.
+ *
+ * Checksum v1 and v2 are mutually exclusive features.
*/
struct commit_header {
__be32 h_magic;
typedef struct journal_block_tag_s
{
__be32 t_blocknr; /* The on-disk block number */
- __be32 t_flags; /* See below */
+ __be16 t_checksum; /* truncated crc32c(uuid+seq+block) */
+ __be16 t_flags; /* See below */
__be32 t_blocknr_high; /* most-significant high 32bits. */
} journal_block_tag_t;
#define JBD2_TAG_SIZE32 (offsetof(journal_block_tag_t, t_blocknr_high))
#define JBD2_TAG_SIZE64 (sizeof(journal_block_tag_t))
+/* Tail of descriptor block, for checksumming */
+struct jbd2_journal_block_tail {
+ __be32 t_checksum; /* crc32c(uuid+descr_block) */
+};
+
/*
* The revoke descriptor: used on disk to describe a series of blocks to
* be revoked from the log
__be32 r_count; /* Count of bytes used in the block */
} jbd2_journal_revoke_header_t;
+/* Tail of revoke block, for checksumming */
+struct jbd2_journal_revoke_tail {
+ __be32 r_checksum; /* crc32c(uuid+revoke_block) */
+};
/* Definitions for the journal tag flags word: */
#define JBD2_FLAG_ESCAPE 1 /* on-disk block is escaped */
__be32 s_max_trans_data; /* Limit of data blocks per trans. */
/* 0x0050 */
- __u32 s_padding[44];
+ __u8 s_checksum_type; /* checksum type */
+ __u8 s_padding2[3];
+ __u32 s_padding[42];
+ __be32 s_checksum; /* crc32c(superblock) */
/* 0x0100 */
__u8 s_users[16*48]; /* ids of all fs'es sharing the log */
#define JBD2_FEATURE_INCOMPAT_REVOKE 0x00000001
#define JBD2_FEATURE_INCOMPAT_64BIT 0x00000002
#define JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT 0x00000004
+#define JBD2_FEATURE_INCOMPAT_CSUM_V2 0x00000008
/* Features known to this kernel version: */
#define JBD2_KNOWN_COMPAT_FEATURES JBD2_FEATURE_COMPAT_CHECKSUM
#define JBD2_KNOWN_ROCOMPAT_FEATURES 0
#define JBD2_KNOWN_INCOMPAT_FEATURES (JBD2_FEATURE_INCOMPAT_REVOKE | \
JBD2_FEATURE_INCOMPAT_64BIT | \
- JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT)
+ JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT | \
+ JBD2_FEATURE_INCOMPAT_CSUM_V2)
#ifdef __KERNEL__
* superblock pointer here
*/
void *j_private;
+
+ /* Reference to checksum algorithm driver via cryptoapi */
+ struct crypto_shash *j_chksum_driver;
+
+ /* Precomputed journal UUID checksum for seeding other checksums */
+ __u32 j_csum_seed;
};
/*
extern int jbd_blocks_per_page(struct inode *inode);
+static inline u32 jbd2_chksum(journal_t *journal, u32 crc,
+ const void *address, unsigned int length)
+{
+ struct {
+ struct shash_desc shash;
+ char ctx[crypto_shash_descsize(journal->j_chksum_driver)];
+ } desc;
+ int err;
+
+ desc.shash.tfm = journal->j_chksum_driver;
+ desc.shash.flags = 0;
+ *(u32 *)desc.ctx = crc;
+
+ err = crypto_shash_update(&desc.shash, address, length);
+ BUG_ON(err);
+
+ return *(u32 *)desc.ctx;
+}
+
#ifdef __KERNEL__
#define buffer_trace_init(bh) do {} while (0)
BH_State, /* Pins most journal_head state */
BH_JournalHead, /* Pins bh->b_private and jh->b_bh */
BH_Unshadow, /* Dummy bit, for BJ_Shadow wakeup filtering */
+ BH_Verified, /* Metadata block has been verified ok */
BH_JBDPrivateStart, /* First bit available for private use by FS */
};
BUFFER_FNS(RevokeValid, revokevalid)
TAS_BUFFER_FNS(RevokeValid, revokevalid)
BUFFER_FNS(Freed, freed)
+BUFFER_FNS(Verified, verified)
static inline struct buffer_head *jh2bh(struct journal_head *jh)
{
/* Look up a kernel symbol and return it in a text buffer. */
extern int sprint_symbol(char *buffer, unsigned long address);
+extern int sprint_symbol_no_offset(char *buffer, unsigned long address);
extern int sprint_backtrace(char *buffer, unsigned long address);
/* Look up a kernel symbol and print it to the kernel messages. */
return 0;
}
+static inline int sprint_symbol_no_offset(char *buffer, unsigned long addr)
+{
+ *buffer = '\0';
+ return 0;
+}
+
static inline int sprint_backtrace(char *buffer, unsigned long addr)
{
*buffer = '\0';
--- /dev/null
+#ifndef _LINUX_KCMP_H
+#define _LINUX_KCMP_H
+
+/* Comparison type */
+enum kcmp_type {
+ KCMP_FILE,
+ KCMP_VM,
+ KCMP_FILES,
+ KCMP_FS,
+ KCMP_SIGHAND,
+ KCMP_IO,
+ KCMP_SYSVSEM,
+
+ KCMP_TYPES,
+};
+
+#endif /* _LINUX_KCMP_H */
#define KPF_KSM 21
#define KPF_THP 22
+#ifdef __KERNEL__
+
/* kernel hacking assistances
* WARNING: subject to change, never rely on them!
*/
#define KPF_ARCH 38
#define KPF_UNCACHED 39
+#endif /* __KERNEL__ */
+
#endif /* LINUX_KERNEL_PAGE_FLAGS_H */
#define LLONG_MAX ((long long)(~0ULL>>1))
#define LLONG_MIN (-LLONG_MAX - 1)
#define ULLONG_MAX (~0ULL)
+#define SIZE_MAX (~(size_t)0)
#define STACK_MAGIC 0xdeadbeef
#ifndef LINUX_KEXEC_H
#define LINUX_KEXEC_H
-#ifdef CONFIG_KEXEC
+/* kexec system call - It loads the new kernel to boot into.
+ * kexec does not sync, or unmount filesystems so if you need
+ * that to happen you need to do that yourself.
+ */
+
#include <linux/types.h>
+
+/* kexec flags for different usage scenarios */
+#define KEXEC_ON_CRASH 0x00000001
+#define KEXEC_PRESERVE_CONTEXT 0x00000002
+#define KEXEC_ARCH_MASK 0xffff0000
+
+/* These values match the ELF architecture values.
+ * Unless there is a good reason that should continue to be the case.
+ */
+#define KEXEC_ARCH_DEFAULT ( 0 << 16)
+#define KEXEC_ARCH_386 ( 3 << 16)
+#define KEXEC_ARCH_X86_64 (62 << 16)
+#define KEXEC_ARCH_PPC (20 << 16)
+#define KEXEC_ARCH_PPC64 (21 << 16)
+#define KEXEC_ARCH_IA_64 (50 << 16)
+#define KEXEC_ARCH_ARM (40 << 16)
+#define KEXEC_ARCH_S390 (22 << 16)
+#define KEXEC_ARCH_SH (42 << 16)
+#define KEXEC_ARCH_MIPS_LE (10 << 16)
+#define KEXEC_ARCH_MIPS ( 8 << 16)
+
+/* The artificial cap on the number of segments passed to kexec_load. */
+#define KEXEC_SEGMENT_MAX 16
+
+#ifndef __KERNEL__
+/*
+ * This structure is used to hold the arguments that are used when
+ * loading kernel binaries.
+ */
+struct kexec_segment {
+ const void *buf;
+ size_t bufsz;
+ const void *mem;
+ size_t memsz;
+};
+
+/* Load a new kernel image as described by the kexec_segment array
+ * consisting of passed number of segments at the entry-point address.
+ * The flags allow different useage types.
+ */
+extern int kexec_load(void *, size_t, struct kexec_segment *,
+ unsigned long int);
+#endif /* __KERNEL__ */
+
+#ifdef __KERNEL__
+#ifdef CONFIG_KEXEC
#include <linux/list.h>
#include <linux/linkage.h>
#include <linux/compat.h>
#define IND_DONE 0x4
#define IND_SOURCE 0x8
-#define KEXEC_SEGMENT_MAX 16
struct kexec_segment {
void __user *buf;
size_t bufsz;
- unsigned long mem; /* User space sees this as a (void *) ... */
+ unsigned long mem;
size_t memsz;
};
#define kexec_flush_icache_page(page)
#endif
-#define KEXEC_ON_CRASH 0x00000001
-#define KEXEC_PRESERVE_CONTEXT 0x00000002
-#define KEXEC_ARCH_MASK 0xffff0000
-
-/* These values match the ELF architecture values.
- * Unless there is a good reason that should continue to be the case.
- */
-#define KEXEC_ARCH_DEFAULT ( 0 << 16)
-#define KEXEC_ARCH_386 ( 3 << 16)
-#define KEXEC_ARCH_X86_64 (62 << 16)
-#define KEXEC_ARCH_PPC (20 << 16)
-#define KEXEC_ARCH_PPC64 (21 << 16)
-#define KEXEC_ARCH_IA_64 (50 << 16)
-#define KEXEC_ARCH_ARM (40 << 16)
-#define KEXEC_ARCH_S390 (22 << 16)
-#define KEXEC_ARCH_SH (42 << 16)
-#define KEXEC_ARCH_MIPS_LE (10 << 16)
-#define KEXEC_ARCH_MIPS ( 8 << 16)
-
/* List of defined/legal kexec flags */
#ifndef CONFIG_KEXEC_JUMP
#define KEXEC_FLAGS KEXEC_ON_CRASH
static inline void crash_kexec(struct pt_regs *regs) { }
static inline int kexec_should_crash(struct task_struct *p) { return 0; }
#endif /* CONFIG_KEXEC */
+#endif /* __KERNEL__ */
#endif /* LINUX_KEXEC_H */
#ifdef CONFIG_SYSCTL
extern ctl_table key_sysctls[];
#endif
-
-extern void key_replace_session_keyring(void);
-
/*
* the userspace interface
*/
#define key_fsuid_changed(t) do { } while(0)
#define key_fsgid_changed(t) do { } while(0)
#define key_init() do { } while(0)
-#define key_replace_session_keyring() do { } while(0)
#endif /* CONFIG_KEYS */
#endif /* __KERNEL__ */
void *data;
};
-/* Allocate a subprocess_info structure */
-struct subprocess_info *call_usermodehelper_setup(char *path, char **argv,
- char **envp, gfp_t gfp_mask);
-
-/* Set various pieces of state into the subprocess_info structure */
-void call_usermodehelper_setfns(struct subprocess_info *info,
- int (*init)(struct subprocess_info *info, struct cred *new),
- void (*cleanup)(struct subprocess_info *info),
- void *data);
-
-/* Actually execute the sub-process */
-int call_usermodehelper_exec(struct subprocess_info *info, int wait);
-
-/* Free the subprocess_info. This is only needed if you're not going
- to call call_usermodehelper_exec */
-void call_usermodehelper_freeinfo(struct subprocess_info *info);
-
-static inline int
+extern int
call_usermodehelper_fns(char *path, char **argv, char **envp, int wait,
int (*init)(struct subprocess_info *info, struct cred *new),
- void (*cleanup)(struct subprocess_info *), void *data)
-{
- struct subprocess_info *info;
- gfp_t gfp_mask = (wait == UMH_NO_WAIT) ? GFP_ATOMIC : GFP_KERNEL;
-
- info = call_usermodehelper_setup(path, argv, envp, gfp_mask);
-
- if (info == NULL)
- return -ENOMEM;
-
- call_usermodehelper_setfns(info, init, cleanup, data);
-
- return call_usermodehelper_exec(info, wait);
-}
+ void (*cleanup)(struct subprocess_info *), void *data);
static inline int
call_usermodehelper(char *path, char **argv, char **envp, int wait)
/* Get the LCD panel power status (0: full on, 1..3: controller
power on, flat panel power off, 4: full off), see FB_BLANK_XXX */
int (*get_power)(struct lcd_device *);
+ /*
+ * Enable or disable power to the LCD(0: on; 4: off, see FB_BLANK_XXX)
+ * and this callback would be called proir to fb driver's callback.
+ *
+ * P.S. note that if early_set_power is not NULL then early fb notifier
+ * would be registered.
+ */
+ int (*early_set_power)(struct lcd_device *, int power);
+ /* revert the effects of the early blank event. */
+ int (*r_early_set_power)(struct lcd_device *, int power);
/* Enable or disable power to the LCD (0: on; 4: off, see FB_BLANK_XXX) */
int (*set_power)(struct lcd_device *, int power);
/* Get the current contrast setting (0-max_contrast) */
* @als2_resistor_sel: internal resistance from ALS2 input to ground
* @als_vmin: als input voltage calibrated for max brightness in mV
* @als_vmax: als input voltage calibrated for min brightness in mV
- * @brt_val: brightness value (0-255)
+ * @brt_val: brightness value (0-127)
* @pwm_data: PWM control functions (only valid when the mode is PWM)
*/
struct lm3530_platform_data {
struct led_trigger *trigger;
struct list_head trig_list;
void *trigger_data;
+ /* true if activated - deactivate routine uses it to do cleanup */
+ bool activated;
#endif
};
#include <linux/lockdep.h>
#include <linux/percpu.h>
#include <linux/cpu.h>
+#include <linux/notifier.h>
/* can make br locks by using local lock for read side, global lock for write */
-#define br_lock_init(name) name##_lock_init()
-#define br_read_lock(name) name##_local_lock()
-#define br_read_unlock(name) name##_local_unlock()
-#define br_write_lock(name) name##_global_lock_online()
-#define br_write_unlock(name) name##_global_unlock_online()
+#define br_lock_init(name) lg_lock_init(name, #name)
+#define br_read_lock(name) lg_local_lock(name)
+#define br_read_unlock(name) lg_local_unlock(name)
+#define br_write_lock(name) lg_global_lock(name)
+#define br_write_unlock(name) lg_global_unlock(name)
-#define DECLARE_BRLOCK(name) DECLARE_LGLOCK(name)
#define DEFINE_BRLOCK(name) DEFINE_LGLOCK(name)
-
-#define lg_lock_init(name) name##_lock_init()
-#define lg_local_lock(name) name##_local_lock()
-#define lg_local_unlock(name) name##_local_unlock()
-#define lg_local_lock_cpu(name, cpu) name##_local_lock_cpu(cpu)
-#define lg_local_unlock_cpu(name, cpu) name##_local_unlock_cpu(cpu)
-#define lg_global_lock(name) name##_global_lock()
-#define lg_global_unlock(name) name##_global_unlock()
-#define lg_global_lock_online(name) name##_global_lock_online()
-#define lg_global_unlock_online(name) name##_global_unlock_online()
-
#ifdef CONFIG_DEBUG_LOCK_ALLOC
#define LOCKDEP_INIT_MAP lockdep_init_map
#define DEFINE_LGLOCK_LOCKDEP(name)
#endif
-
-#define DECLARE_LGLOCK(name) \
- extern void name##_lock_init(void); \
- extern void name##_local_lock(void); \
- extern void name##_local_unlock(void); \
- extern void name##_local_lock_cpu(int cpu); \
- extern void name##_local_unlock_cpu(int cpu); \
- extern void name##_global_lock(void); \
- extern void name##_global_unlock(void); \
- extern void name##_global_lock_online(void); \
- extern void name##_global_unlock_online(void); \
+struct lglock {
+ arch_spinlock_t __percpu *lock;
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+ struct lock_class_key lock_key;
+ struct lockdep_map lock_dep_map;
+#endif
+};
#define DEFINE_LGLOCK(name) \
- \
- DEFINE_SPINLOCK(name##_cpu_lock); \
- cpumask_t name##_cpus __read_mostly; \
- DEFINE_PER_CPU(arch_spinlock_t, name##_lock); \
- DEFINE_LGLOCK_LOCKDEP(name); \
- \
- static int \
- name##_lg_cpu_callback(struct notifier_block *nb, \
- unsigned long action, void *hcpu) \
- { \
- switch (action & ~CPU_TASKS_FROZEN) { \
- case CPU_UP_PREPARE: \
- spin_lock(&name##_cpu_lock); \
- cpu_set((unsigned long)hcpu, name##_cpus); \
- spin_unlock(&name##_cpu_lock); \
- break; \
- case CPU_UP_CANCELED: case CPU_DEAD: \
- spin_lock(&name##_cpu_lock); \
- cpu_clear((unsigned long)hcpu, name##_cpus); \
- spin_unlock(&name##_cpu_lock); \
- } \
- return NOTIFY_OK; \
- } \
- static struct notifier_block name##_lg_cpu_notifier = { \
- .notifier_call = name##_lg_cpu_callback, \
- }; \
- void name##_lock_init(void) { \
- int i; \
- LOCKDEP_INIT_MAP(&name##_lock_dep_map, #name, &name##_lock_key, 0); \
- for_each_possible_cpu(i) { \
- arch_spinlock_t *lock; \
- lock = &per_cpu(name##_lock, i); \
- *lock = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED; \
- } \
- register_hotcpu_notifier(&name##_lg_cpu_notifier); \
- get_online_cpus(); \
- for_each_online_cpu(i) \
- cpu_set(i, name##_cpus); \
- put_online_cpus(); \
- } \
- EXPORT_SYMBOL(name##_lock_init); \
- \
- void name##_local_lock(void) { \
- arch_spinlock_t *lock; \
- preempt_disable(); \
- rwlock_acquire_read(&name##_lock_dep_map, 0, 0, _THIS_IP_); \
- lock = &__get_cpu_var(name##_lock); \
- arch_spin_lock(lock); \
- } \
- EXPORT_SYMBOL(name##_local_lock); \
- \
- void name##_local_unlock(void) { \
- arch_spinlock_t *lock; \
- rwlock_release(&name##_lock_dep_map, 1, _THIS_IP_); \
- lock = &__get_cpu_var(name##_lock); \
- arch_spin_unlock(lock); \
- preempt_enable(); \
- } \
- EXPORT_SYMBOL(name##_local_unlock); \
- \
- void name##_local_lock_cpu(int cpu) { \
- arch_spinlock_t *lock; \
- preempt_disable(); \
- rwlock_acquire_read(&name##_lock_dep_map, 0, 0, _THIS_IP_); \
- lock = &per_cpu(name##_lock, cpu); \
- arch_spin_lock(lock); \
- } \
- EXPORT_SYMBOL(name##_local_lock_cpu); \
- \
- void name##_local_unlock_cpu(int cpu) { \
- arch_spinlock_t *lock; \
- rwlock_release(&name##_lock_dep_map, 1, _THIS_IP_); \
- lock = &per_cpu(name##_lock, cpu); \
- arch_spin_unlock(lock); \
- preempt_enable(); \
- } \
- EXPORT_SYMBOL(name##_local_unlock_cpu); \
- \
- void name##_global_lock_online(void) { \
- int i; \
- spin_lock(&name##_cpu_lock); \
- rwlock_acquire(&name##_lock_dep_map, 0, 0, _RET_IP_); \
- for_each_cpu(i, &name##_cpus) { \
- arch_spinlock_t *lock; \
- lock = &per_cpu(name##_lock, i); \
- arch_spin_lock(lock); \
- } \
- } \
- EXPORT_SYMBOL(name##_global_lock_online); \
- \
- void name##_global_unlock_online(void) { \
- int i; \
- rwlock_release(&name##_lock_dep_map, 1, _RET_IP_); \
- for_each_cpu(i, &name##_cpus) { \
- arch_spinlock_t *lock; \
- lock = &per_cpu(name##_lock, i); \
- arch_spin_unlock(lock); \
- } \
- spin_unlock(&name##_cpu_lock); \
- } \
- EXPORT_SYMBOL(name##_global_unlock_online); \
- \
- void name##_global_lock(void) { \
- int i; \
- preempt_disable(); \
- rwlock_acquire(&name##_lock_dep_map, 0, 0, _RET_IP_); \
- for_each_possible_cpu(i) { \
- arch_spinlock_t *lock; \
- lock = &per_cpu(name##_lock, i); \
- arch_spin_lock(lock); \
- } \
- } \
- EXPORT_SYMBOL(name##_global_lock); \
- \
- void name##_global_unlock(void) { \
- int i; \
- rwlock_release(&name##_lock_dep_map, 1, _RET_IP_); \
- for_each_possible_cpu(i) { \
- arch_spinlock_t *lock; \
- lock = &per_cpu(name##_lock, i); \
- arch_spin_unlock(lock); \
- } \
- preempt_enable(); \
- } \
- EXPORT_SYMBOL(name##_global_unlock);
+ DEFINE_LGLOCK_LOCKDEP(name); \
+ DEFINE_PER_CPU(arch_spinlock_t, name ## _lock) \
+ = __ARCH_SPIN_LOCK_UNLOCKED; \
+ struct lglock name = { .lock = &name ## _lock }
+
+void lg_lock_init(struct lglock *lg, char *name);
+void lg_local_lock(struct lglock *lg);
+void lg_local_unlock(struct lglock *lg);
+void lg_local_lock_cpu(struct lglock *lg, int cpu);
+void lg_local_unlock_cpu(struct lglock *lg, int cpu);
+void lg_global_lock(struct lglock *lg);
+void lg_global_unlock(struct lglock *lg);
+
#endif
extern int nlmclnt_proc(struct nlm_host *host, int cmd,
struct file_lock *fl);
-extern int lockd_up(void);
-extern void lockd_down(void);
+extern int lockd_up(struct net *net);
+extern void lockd_down(struct net *net);
#endif /* LINUX_LOCKD_BIND_H */
gfp_t gfp_mask);
struct lruvec *mem_cgroup_zone_lruvec(struct zone *, struct mem_cgroup *);
-struct lruvec *mem_cgroup_lru_add_list(struct zone *, struct page *,
- enum lru_list);
-void mem_cgroup_lru_del_list(struct page *, enum lru_list);
-void mem_cgroup_lru_del(struct page *);
-struct lruvec *mem_cgroup_lru_move_lists(struct zone *, struct page *,
- enum lru_list, enum lru_list);
+struct lruvec *mem_cgroup_page_lruvec(struct page *, struct zone *);
/* For coalescing uncharge for reducing memcg' overhead*/
extern void mem_cgroup_uncharge_start(void);
extern void mem_cgroup_out_of_memory(struct mem_cgroup *memcg, gfp_t gfp_mask,
int order);
+bool __mem_cgroup_same_or_subtree(const struct mem_cgroup *root_memcg,
+ struct mem_cgroup *memcg);
int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *memcg);
extern struct mem_cgroup *try_get_mem_cgroup_from_page(struct page *page);
int mm_match_cgroup(const struct mm_struct *mm, const struct mem_cgroup *cgroup)
{
struct mem_cgroup *memcg;
+ int match;
+
rcu_read_lock();
memcg = mem_cgroup_from_task(rcu_dereference((mm)->owner));
+ match = __mem_cgroup_same_or_subtree(cgroup, memcg);
rcu_read_unlock();
- return cgroup == memcg;
+ return match;
}
extern struct cgroup_subsys_state *mem_cgroup_css(struct mem_cgroup *memcg);
/*
* For memory reclaim.
*/
-int mem_cgroup_inactive_anon_is_low(struct mem_cgroup *memcg,
- struct zone *zone);
-int mem_cgroup_inactive_file_is_low(struct mem_cgroup *memcg,
- struct zone *zone);
+int mem_cgroup_inactive_anon_is_low(struct lruvec *lruvec);
+int mem_cgroup_inactive_file_is_low(struct lruvec *lruvec);
int mem_cgroup_select_victim_node(struct mem_cgroup *memcg);
-unsigned long mem_cgroup_zone_nr_lru_pages(struct mem_cgroup *memcg,
- int nid, int zid, unsigned int lrumask);
-struct zone_reclaim_stat *mem_cgroup_get_reclaim_stat(struct mem_cgroup *memcg,
- struct zone *zone);
-struct zone_reclaim_stat*
-mem_cgroup_get_reclaim_stat_from_page(struct page *page);
+unsigned long mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list);
+void mem_cgroup_update_lru_size(struct lruvec *, enum lru_list, int);
extern void mem_cgroup_print_oom_info(struct mem_cgroup *memcg,
struct task_struct *p);
extern void mem_cgroup_replace_page_cache(struct page *oldpage,
return &zone->lruvec;
}
-static inline struct lruvec *mem_cgroup_lru_add_list(struct zone *zone,
- struct page *page,
- enum lru_list lru)
-{
- return &zone->lruvec;
-}
-
-static inline void mem_cgroup_lru_del_list(struct page *page, enum lru_list lru)
-{
-}
-
-static inline void mem_cgroup_lru_del(struct page *page)
-{
-}
-
-static inline struct lruvec *mem_cgroup_lru_move_lists(struct zone *zone,
- struct page *page,
- enum lru_list from,
- enum lru_list to)
+static inline struct lruvec *mem_cgroup_page_lruvec(struct page *page,
+ struct zone *zone)
{
return &zone->lruvec;
}
}
static inline int
-mem_cgroup_inactive_anon_is_low(struct mem_cgroup *memcg, struct zone *zone)
+mem_cgroup_inactive_anon_is_low(struct lruvec *lruvec)
{
return 1;
}
static inline int
-mem_cgroup_inactive_file_is_low(struct mem_cgroup *memcg, struct zone *zone)
+mem_cgroup_inactive_file_is_low(struct lruvec *lruvec)
{
return 1;
}
static inline unsigned long
-mem_cgroup_zone_nr_lru_pages(struct mem_cgroup *memcg, int nid, int zid,
- unsigned int lru_mask)
+mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru)
{
return 0;
}
-
-static inline struct zone_reclaim_stat*
-mem_cgroup_get_reclaim_stat(struct mem_cgroup *memcg, struct zone *zone)
-{
- return NULL;
-}
-
-static inline struct zone_reclaim_stat*
-mem_cgroup_get_reclaim_stat_from_page(struct page *page)
+static inline void
+mem_cgroup_update_lru_size(struct lruvec *lruvec, enum lru_list lru,
+ int increment)
{
- return NULL;
}
static inline void
policy_zone = k;
}
-int do_migrate_pages(struct mm_struct *mm,
- const nodemask_t *from_nodes, const nodemask_t *to_nodes, int flags);
+int do_migrate_pages(struct mm_struct *mm, const nodemask_t *from,
+ const nodemask_t *to, int flags);
#ifdef CONFIG_TMPFS
return false;
}
-static inline int do_migrate_pages(struct mm_struct *mm,
- const nodemask_t *from_nodes,
- const nodemask_t *to_nodes, int flags)
+static inline int do_migrate_pages(struct mm_struct *mm, const nodemask_t *from,
+ const nodemask_t *to, int flags)
{
return 0;
}
#ifndef MFD_AB8500_H
#define MFD_AB8500_H
+#include <linux/atomic.h>
#include <linux/mutex.h>
struct device;
#define AB9540_INT_GPIO52F 123
#define AB9540_INT_GPIO53F 124
#define AB9540_INT_GPIO54F 125 /* not 8505 */
+/* ab8500_irq_regoffset[16] -> IT[Source|Latch|Mask]25 */
+#define AB8505_INT_KEYSTUCK 128
+#define AB8505_INT_IKR 129
+#define AB8505_INT_IKP 130
+#define AB8505_INT_KP 131
+#define AB8505_INT_KEYDEGLITCH 132
+#define AB8505_INT_MODPWRSTATUSF 134
+#define AB8505_INT_MODPWRSTATUSR 135
/*
* AB8500_AB9540_NR_IRQS is used when configuring the IRQ numbers for the
* which is larger.
*/
#define AB8500_NR_IRQS 112
-#define AB8505_NR_IRQS 128
-#define AB9540_NR_IRQS 128
+#define AB8505_NR_IRQS 136
+#define AB9540_NR_IRQS 136
/* This is set to the roof of any AB8500 chip variant IRQ counts */
#define AB8500_MAX_NR_IRQS AB9540_NR_IRQS
* @dev: parent device
* @lock: read/write operations lock
* @irq_lock: genirq bus lock
+ * @transfer_ongoing: 0 if no transfer ongoing
* @irq: irq line
* @version: chip version id (e.g. ab8500 or ab9540)
* @chip_id: chip revision id
struct device *dev;
struct mutex lock;
struct mutex irq_lock;
-
+ atomic_t transfer_ongoing;
int irq_base;
int irq;
enum ab8500_version version;
enum ab8500_version version);
extern int __devexit ab8500_exit(struct ab8500 *ab8500);
+extern int ab8500_suspend(struct ab8500 *ab8500);
+
static inline int is_ab8500(struct ab8500 *ab)
{
return ab->version == AB8500_VERSION_AB8500;
spinlock_t reglock;
};
-extern u32 anatop_get_bits(struct anatop *, u32, int, int);
-extern void anatop_set_bits(struct anatop *, u32, int, int, u32);
+extern u32 anatop_read_reg(struct anatop *, u32);
+extern void anatop_write_reg(struct anatop *, u32, u32, u32);
#endif /* __LINUX_MFD_ANATOP_H */
unsigned int gpio_base;
+ unsigned int clock_rate;
+
struct asic3_led *leds;
};
#include <linux/mfd/da9052/reg.h>
+/* Common - HWMON Channel Definations */
+#define DA9052_ADC_VDDOUT 0
+#define DA9052_ADC_ICH 1
+#define DA9052_ADC_TBAT 2
+#define DA9052_ADC_VBAT 3
+#define DA9052_ADC_IN4 4
+#define DA9052_ADC_IN5 5
+#define DA9052_ADC_IN6 6
+#define DA9052_ADC_TSI 7
+#define DA9052_ADC_TJUNC 8
+#define DA9052_ADC_VBBAT 9
+
#define DA9052_IRQ_DCIN 0
#define DA9052_IRQ_VBUS 1
#define DA9052_IRQ_DCINREM 2
struct device *dev;
struct regmap *regmap;
+ struct mutex auxadc_lock;
+ struct completion done;
+
int irq_base;
struct regmap_irq_chip_data *irq_data;
u8 chip_id;
int chip_irq;
};
+/* ADC API */
+int da9052_adc_manual_read(struct da9052 *da9052, unsigned char channel);
+int da9052_adc_read_temp(struct da9052 *da9052);
+
/* Device I/O API */
static inline int da9052_reg_read(struct da9052 *da9052, unsigned char reg)
{
--- /dev/null
+/*
+ * lm3533.h -- LM3533 interface
+ *
+ * Copyright (C) 2011-2012 Texas Instruments
+ *
+ * Author: Johan Hovold <jhovold@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __LINUX_MFD_LM3533_H
+#define __LINUX_MFD_LM3533_H
+
+#define LM3533_ATTR_RO(_name) \
+ DEVICE_ATTR(_name, S_IRUGO, show_##_name, NULL)
+#define LM3533_ATTR_RW(_name) \
+ DEVICE_ATTR(_name, S_IRUGO | S_IWUSR , show_##_name, store_##_name)
+
+struct device;
+struct regmap;
+
+struct lm3533 {
+ struct device *dev;
+
+ struct regmap *regmap;
+
+ int gpio_hwen;
+ int irq;
+
+ unsigned have_als:1;
+ unsigned have_backlights:1;
+ unsigned have_leds:1;
+};
+
+struct lm3533_ctrlbank {
+ struct lm3533 *lm3533;
+ struct device *dev;
+ int id;
+};
+
+struct lm3533_als_platform_data {
+ unsigned pwm_mode:1; /* PWM input mode (default analog) */
+ u8 r_select; /* 1 - 127 (ignored in PWM-mode) */
+};
+
+struct lm3533_bl_platform_data {
+ char *name;
+ u16 max_current; /* 5000 - 29800 uA (800 uA step) */
+ u8 default_brightness; /* 0 - 255 */
+ u8 pwm; /* 0 - 0x3f */
+};
+
+struct lm3533_led_platform_data {
+ char *name;
+ const char *default_trigger;
+ u16 max_current; /* 5000 - 29800 uA (800 uA step) */
+ u8 pwm; /* 0 - 0x3f */
+};
+
+enum lm3533_boost_freq {
+ LM3533_BOOST_FREQ_500KHZ,
+ LM3533_BOOST_FREQ_1000KHZ,
+};
+
+enum lm3533_boost_ovp {
+ LM3533_BOOST_OVP_16V,
+ LM3533_BOOST_OVP_24V,
+ LM3533_BOOST_OVP_32V,
+ LM3533_BOOST_OVP_40V,
+};
+
+struct lm3533_platform_data {
+ int gpio_hwen;
+
+ enum lm3533_boost_ovp boost_ovp;
+ enum lm3533_boost_freq boost_freq;
+
+ struct lm3533_als_platform_data *als;
+
+ struct lm3533_bl_platform_data *backlights;
+ int num_backlights;
+
+ struct lm3533_led_platform_data *leds;
+ int num_leds;
+};
+
+extern int lm3533_ctrlbank_enable(struct lm3533_ctrlbank *cb);
+extern int lm3533_ctrlbank_disable(struct lm3533_ctrlbank *cb);
+
+extern int lm3533_ctrlbank_set_brightness(struct lm3533_ctrlbank *cb, u8 val);
+extern int lm3533_ctrlbank_get_brightness(struct lm3533_ctrlbank *cb, u8 *val);
+extern int lm3533_ctrlbank_set_max_current(struct lm3533_ctrlbank *cb,
+ u16 imax);
+extern int lm3533_ctrlbank_set_pwm(struct lm3533_ctrlbank *cb, u8 val);
+extern int lm3533_ctrlbank_get_pwm(struct lm3533_ctrlbank *cb, u8 *val);
+
+extern int lm3533_read(struct lm3533 *lm3533, u8 reg, u8 *val);
+extern int lm3533_write(struct lm3533 *lm3533, u8 reg, u8 val);
+extern int lm3533_update(struct lm3533 *lm3533, u8 reg, u8 val, u8 mask);
+
+#endif /* __LINUX_MFD_LM3533_H */
--- /dev/null
+/*
+ * linux/drivers/mfd/lpc_ich.h
+ *
+ * Copyright (c) 2012 Extreme Engineering Solution, Inc.
+ * Author: Aaron Sierra <asierra@xes-inc.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License 2 as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#ifndef LPC_ICH_H
+#define LPC_ICH_H
+
+/* Watchdog resources */
+#define ICH_RES_IO_TCO 0
+#define ICH_RES_IO_SMI 1
+#define ICH_RES_MEM_OFF 2
+#define ICH_RES_MEM_GCS 0
+
+/* GPIO resources */
+#define ICH_RES_GPIO 0
+#define ICH_RES_GPE0 1
+
+/* GPIO compatibility */
+#define ICH_I3100_GPIO 0x401
+#define ICH_V5_GPIO 0x501
+#define ICH_V6_GPIO 0x601
+#define ICH_V7_GPIO 0x701
+#define ICH_V9_GPIO 0x801
+#define ICH_V10CORP_GPIO 0xa01
+#define ICH_V10CONS_GPIO 0xa11
+
+struct lpc_ich_info {
+ char name[32];
+ unsigned int iTCO_version;
+ unsigned int gpio_version;
+};
+
+#endif
--- /dev/null
+/*
+ * max77693-private.h - Voltage regulator driver for the Maxim 77693
+ *
+ * Copyright (C) 2012 Samsung Electrnoics
+ * SangYoung Son <hello.son@samsung.com>
+ *
+ * This program is not provided / owned by Maxim Integrated Products.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef __LINUX_MFD_MAX77693_PRIV_H
+#define __LINUX_MFD_MAX77693_PRIV_H
+
+#include <linux/i2c.h>
+
+#define MAX77693_NUM_IRQ_MUIC_REGS 3
+#define MAX77693_REG_INVALID (0xff)
+
+/* Slave addr = 0xCC: PMIC, Charger, Flash LED */
+enum max77693_pmic_reg {
+ MAX77693_LED_REG_IFLASH1 = 0x00,
+ MAX77693_LED_REG_IFLASH2 = 0x01,
+ MAX77693_LED_REG_ITORCH = 0x02,
+ MAX77693_LED_REG_ITORCHTIMER = 0x03,
+ MAX77693_LED_REG_FLASH_TIMER = 0x04,
+ MAX77693_LED_REG_FLASH_EN = 0x05,
+ MAX77693_LED_REG_MAX_FLASH1 = 0x06,
+ MAX77693_LED_REG_MAX_FLASH2 = 0x07,
+ MAX77693_LED_REG_MAX_FLASH3 = 0x08,
+ MAX77693_LED_REG_MAX_FLASH4 = 0x09,
+ MAX77693_LED_REG_VOUT_CNTL = 0x0A,
+ MAX77693_LED_REG_VOUT_FLASH1 = 0x0B,
+ MAX77693_LED_REG_VOUT_FLASH2 = 0x0C,
+ MAX77693_LED_REG_FLASH_INT = 0x0E,
+ MAX77693_LED_REG_FLASH_INT_MASK = 0x0F,
+ MAX77693_LED_REG_FLASH_INT_STATUS = 0x10,
+
+ MAX77693_PMIC_REG_PMIC_ID1 = 0x20,
+ MAX77693_PMIC_REG_PMIC_ID2 = 0x21,
+ MAX77693_PMIC_REG_INTSRC = 0x22,
+ MAX77693_PMIC_REG_INTSRC_MASK = 0x23,
+ MAX77693_PMIC_REG_TOPSYS_INT = 0x24,
+ MAX77693_PMIC_REG_TOPSYS_INT_MASK = 0x26,
+ MAX77693_PMIC_REG_TOPSYS_STAT = 0x28,
+ MAX77693_PMIC_REG_MAINCTRL1 = 0x2A,
+ MAX77693_PMIC_REG_LSCNFG = 0x2B,
+
+ MAX77693_CHG_REG_CHG_INT = 0xB0,
+ MAX77693_CHG_REG_CHG_INT_MASK = 0xB1,
+ MAX77693_CHG_REG_CHG_INT_OK = 0xB2,
+ MAX77693_CHG_REG_CHG_DETAILS_00 = 0xB3,
+ MAX77693_CHG_REG_CHG_DETAILS_01 = 0xB4,
+ MAX77693_CHG_REG_CHG_DETAILS_02 = 0xB5,
+ MAX77693_CHG_REG_CHG_DETAILS_03 = 0xB6,
+ MAX77693_CHG_REG_CHG_CNFG_00 = 0xB7,
+ MAX77693_CHG_REG_CHG_CNFG_01 = 0xB8,
+ MAX77693_CHG_REG_CHG_CNFG_02 = 0xB9,
+ MAX77693_CHG_REG_CHG_CNFG_03 = 0xBA,
+ MAX77693_CHG_REG_CHG_CNFG_04 = 0xBB,
+ MAX77693_CHG_REG_CHG_CNFG_05 = 0xBC,
+ MAX77693_CHG_REG_CHG_CNFG_06 = 0xBD,
+ MAX77693_CHG_REG_CHG_CNFG_07 = 0xBE,
+ MAX77693_CHG_REG_CHG_CNFG_08 = 0xBF,
+ MAX77693_CHG_REG_CHG_CNFG_09 = 0xC0,
+ MAX77693_CHG_REG_CHG_CNFG_10 = 0xC1,
+ MAX77693_CHG_REG_CHG_CNFG_11 = 0xC2,
+ MAX77693_CHG_REG_CHG_CNFG_12 = 0xC3,
+ MAX77693_CHG_REG_CHG_CNFG_13 = 0xC4,
+ MAX77693_CHG_REG_CHG_CNFG_14 = 0xC5,
+ MAX77693_CHG_REG_SAFEOUT_CTRL = 0xC6,
+
+ MAX77693_PMIC_REG_END,
+};
+
+/* Slave addr = 0x4A: MUIC */
+enum max77693_muic_reg {
+ MAX77693_MUIC_REG_ID = 0x00,
+ MAX77693_MUIC_REG_INT1 = 0x01,
+ MAX77693_MUIC_REG_INT2 = 0x02,
+ MAX77693_MUIC_REG_INT3 = 0x03,
+ MAX77693_MUIC_REG_STATUS1 = 0x04,
+ MAX77693_MUIC_REG_STATUS2 = 0x05,
+ MAX77693_MUIC_REG_STATUS3 = 0x06,
+ MAX77693_MUIC_REG_INTMASK1 = 0x07,
+ MAX77693_MUIC_REG_INTMASK2 = 0x08,
+ MAX77693_MUIC_REG_INTMASK3 = 0x09,
+ MAX77693_MUIC_REG_CDETCTRL1 = 0x0A,
+ MAX77693_MUIC_REG_CDETCTRL2 = 0x0B,
+ MAX77693_MUIC_REG_CTRL1 = 0x0C,
+ MAX77693_MUIC_REG_CTRL2 = 0x0D,
+ MAX77693_MUIC_REG_CTRL3 = 0x0E,
+
+ MAX77693_MUIC_REG_END,
+};
+
+/* Slave addr = 0x90: Haptic */
+enum max77693_haptic_reg {
+ MAX77693_HAPTIC_REG_STATUS = 0x00,
+ MAX77693_HAPTIC_REG_CONFIG1 = 0x01,
+ MAX77693_HAPTIC_REG_CONFIG2 = 0x02,
+ MAX77693_HAPTIC_REG_CONFIG_CHNL = 0x03,
+ MAX77693_HAPTIC_REG_CONFG_CYC1 = 0x04,
+ MAX77693_HAPTIC_REG_CONFG_CYC2 = 0x05,
+ MAX77693_HAPTIC_REG_CONFIG_PER1 = 0x06,
+ MAX77693_HAPTIC_REG_CONFIG_PER2 = 0x07,
+ MAX77693_HAPTIC_REG_CONFIG_PER3 = 0x08,
+ MAX77693_HAPTIC_REG_CONFIG_PER4 = 0x09,
+ MAX77693_HAPTIC_REG_CONFIG_DUTY1 = 0x0A,
+ MAX77693_HAPTIC_REG_CONFIG_DUTY2 = 0x0B,
+ MAX77693_HAPTIC_REG_CONFIG_PWM1 = 0x0C,
+ MAX77693_HAPTIC_REG_CONFIG_PWM2 = 0x0D,
+ MAX77693_HAPTIC_REG_CONFIG_PWM3 = 0x0E,
+ MAX77693_HAPTIC_REG_CONFIG_PWM4 = 0x0F,
+ MAX77693_HAPTIC_REG_REV = 0x10,
+
+ MAX77693_HAPTIC_REG_END,
+};
+
+enum max77693_irq_source {
+ LED_INT = 0,
+ TOPSYS_INT,
+ CHG_INT,
+ MUIC_INT1,
+ MUIC_INT2,
+ MUIC_INT3,
+
+ MAX77693_IRQ_GROUP_NR,
+};
+
+enum max77693_irq {
+ /* PMIC - FLASH */
+ MAX77693_LED_IRQ_FLED2_OPEN,
+ MAX77693_LED_IRQ_FLED2_SHORT,
+ MAX77693_LED_IRQ_FLED1_OPEN,
+ MAX77693_LED_IRQ_FLED1_SHORT,
+ MAX77693_LED_IRQ_MAX_FLASH,
+
+ /* PMIC - TOPSYS */
+ MAX77693_TOPSYS_IRQ_T120C_INT,
+ MAX77693_TOPSYS_IRQ_T140C_INT,
+ MAX77693_TOPSYS_IRQ_LOWSYS_INT,
+
+ /* PMIC - Charger */
+ MAX77693_CHG_IRQ_BYP_I,
+ MAX77693_CHG_IRQ_THM_I,
+ MAX77693_CHG_IRQ_BAT_I,
+ MAX77693_CHG_IRQ_CHG_I,
+ MAX77693_CHG_IRQ_CHGIN_I,
+
+ /* MUIC INT1 */
+ MAX77693_MUIC_IRQ_INT1_ADC,
+ MAX77693_MUIC_IRQ_INT1_ADC_LOW,
+ MAX77693_MUIC_IRQ_INT1_ADC_ERR,
+ MAX77693_MUIC_IRQ_INT1_ADC1K,
+
+ /* MUIC INT2 */
+ MAX77693_MUIC_IRQ_INT2_CHGTYP,
+ MAX77693_MUIC_IRQ_INT2_CHGDETREUN,
+ MAX77693_MUIC_IRQ_INT2_DCDTMR,
+ MAX77693_MUIC_IRQ_INT2_DXOVP,
+ MAX77693_MUIC_IRQ_INT2_VBVOLT,
+ MAX77693_MUIC_IRQ_INT2_VIDRM,
+
+ /* MUIC INT3 */
+ MAX77693_MUIC_IRQ_INT3_EOC,
+ MAX77693_MUIC_IRQ_INT3_CGMBC,
+ MAX77693_MUIC_IRQ_INT3_OVP,
+ MAX77693_MUIC_IRQ_INT3_MBCCHG_ERR,
+ MAX77693_MUIC_IRQ_INT3_CHG_ENABLED,
+ MAX77693_MUIC_IRQ_INT3_BAT_DET,
+
+ MAX77693_IRQ_NR,
+};
+
+struct max77693_dev {
+ struct device *dev;
+ struct i2c_client *i2c; /* 0xCC , PMIC, Charger, Flash LED */
+ struct i2c_client *muic; /* 0x4A , MUIC */
+ struct i2c_client *haptic; /* 0x90 , Haptic */
+ struct mutex iolock;
+
+ int type;
+
+ struct regmap *regmap;
+ struct regmap *regmap_muic;
+ struct regmap *regmap_haptic;
+
+ struct irq_domain *irq_domain;
+
+ int irq;
+ int irq_gpio;
+ bool wakeup;
+ struct mutex irqlock;
+ int irq_masks_cur[MAX77693_IRQ_GROUP_NR];
+ int irq_masks_cache[MAX77693_IRQ_GROUP_NR];
+};
+
+enum max77693_types {
+ TYPE_MAX77693,
+};
+
+extern int max77693_read_reg(struct regmap *map, u8 reg, u8 *dest);
+extern int max77693_bulk_read(struct regmap *map, u8 reg, int count,
+ u8 *buf);
+extern int max77693_write_reg(struct regmap *map, u8 reg, u8 value);
+extern int max77693_bulk_write(struct regmap *map, u8 reg, int count,
+ u8 *buf);
+extern int max77693_update_reg(struct regmap *map, u8 reg, u8 val, u8 mask);
+
+extern int max77693_irq_init(struct max77693_dev *max77686);
+extern void max77693_irq_exit(struct max77693_dev *max77686);
+extern int max77693_irq_resume(struct max77693_dev *max77686);
+
+#endif /* __LINUX_MFD_MAX77693_PRIV_H */
--- /dev/null
+/*
+ * max77693.h - Driver for the Maxim 77693
+ *
+ * Copyright (C) 2012 Samsung Electrnoics
+ * SangYoung Son <hello.son@samsung.com>
+ *
+ * This program is not provided / owned by Maxim Integrated Products.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * This driver is based on max8997.h
+ *
+ * MAX77693 has PMIC, Charger, Flash LED, Haptic, MUIC devices.
+ * The devices share the same I2C bus and included in
+ * this mfd driver.
+ */
+
+#ifndef __LINUX_MFD_MAX77693_H
+#define __LINUX_MFD_MAX77693_H
+
+struct max77693_platform_data {
+ int wakeup;
+};
+#endif /* __LINUX_MFD_MAX77693_H */
--- /dev/null
+/*
+ * Copyright (c) 2009-2011 Wind River Systems, Inc.
+ * Copyright (c) 2011 ST Microelectronics (Alessandro Rubini)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * The STMicroelectronics ConneXt (STA2X11) chip has several unrelated
+ * functions in one PCI endpoint functions. This driver simply
+ * registers the platform devices in this iomemregion and exports a few
+ * functions to access common registers
+ */
+
+#ifndef __STA2X11_MFD_H
+#define __STA2X11_MFD_H
+#include <linux/types.h>
+#include <linux/pci.h>
+
+/*
+ * The MFD PCI block includes the GPIO peripherals and other register blocks.
+ * For GPIO, we have 32*4 bits (I use "gsta" for "gpio sta2x11".)
+ */
+#define GSTA_GPIO_PER_BLOCK 32
+#define GSTA_NR_BLOCKS 4
+#define GSTA_NR_GPIO (GSTA_GPIO_PER_BLOCK * GSTA_NR_BLOCKS)
+
+/* Pinconfig is set by the board definition: altfunc, pull-up, pull-down */
+struct sta2x11_gpio_pdata {
+ unsigned pinconfig[GSTA_NR_GPIO];
+};
+
+/* Macros below lifted from sh_pfc.h, with minor differences */
+#define PINMUX_TYPE_NONE 0
+#define PINMUX_TYPE_FUNCTION 1
+#define PINMUX_TYPE_OUTPUT_LOW 2
+#define PINMUX_TYPE_OUTPUT_HIGH 3
+#define PINMUX_TYPE_INPUT 4
+#define PINMUX_TYPE_INPUT_PULLUP 5
+#define PINMUX_TYPE_INPUT_PULLDOWN 6
+
+/* Give names to GPIO pins, like PXA does, taken from the manual */
+#define STA2X11_GPIO0 0
+#define STA2X11_GPIO1 1
+#define STA2X11_GPIO2 2
+#define STA2X11_GPIO3 3
+#define STA2X11_GPIO4 4
+#define STA2X11_GPIO5 5
+#define STA2X11_GPIO6 6
+#define STA2X11_GPIO7 7
+#define STA2X11_GPIO8_RGBOUT_RED7 8
+#define STA2X11_GPIO9_RGBOUT_RED6 9
+#define STA2X11_GPIO10_RGBOUT_RED5 10
+#define STA2X11_GPIO11_RGBOUT_RED4 11
+#define STA2X11_GPIO12_RGBOUT_RED3 12
+#define STA2X11_GPIO13_RGBOUT_RED2 13
+#define STA2X11_GPIO14_RGBOUT_RED1 14
+#define STA2X11_GPIO15_RGBOUT_RED0 15
+#define STA2X11_GPIO16_RGBOUT_GREEN7 16
+#define STA2X11_GPIO17_RGBOUT_GREEN6 17
+#define STA2X11_GPIO18_RGBOUT_GREEN5 18
+#define STA2X11_GPIO19_RGBOUT_GREEN4 19
+#define STA2X11_GPIO20_RGBOUT_GREEN3 20
+#define STA2X11_GPIO21_RGBOUT_GREEN2 21
+#define STA2X11_GPIO22_RGBOUT_GREEN1 22
+#define STA2X11_GPIO23_RGBOUT_GREEN0 23
+#define STA2X11_GPIO24_RGBOUT_BLUE7 24
+#define STA2X11_GPIO25_RGBOUT_BLUE6 25
+#define STA2X11_GPIO26_RGBOUT_BLUE5 26
+#define STA2X11_GPIO27_RGBOUT_BLUE4 27
+#define STA2X11_GPIO28_RGBOUT_BLUE3 28
+#define STA2X11_GPIO29_RGBOUT_BLUE2 29
+#define STA2X11_GPIO30_RGBOUT_BLUE1 30
+#define STA2X11_GPIO31_RGBOUT_BLUE0 31
+#define STA2X11_GPIO32_RGBOUT_VSYNCH 32
+#define STA2X11_GPIO33_RGBOUT_HSYNCH 33
+#define STA2X11_GPIO34_RGBOUT_DEN 34
+#define STA2X11_GPIO35_ETH_CRS_DV 35
+#define STA2X11_GPIO36_ETH_TXD1 36
+#define STA2X11_GPIO37_ETH_TXD0 37
+#define STA2X11_GPIO38_ETH_TX_EN 38
+#define STA2X11_GPIO39_MDIO 39
+#define STA2X11_GPIO40_ETH_REF_CLK 40
+#define STA2X11_GPIO41_ETH_RXD1 41
+#define STA2X11_GPIO42_ETH_RXD0 42
+#define STA2X11_GPIO43_MDC 43
+#define STA2X11_GPIO44_CAN_TX 44
+#define STA2X11_GPIO45_CAN_RX 45
+#define STA2X11_GPIO46_MLB_DAT 46
+#define STA2X11_GPIO47_MLB_SIG 47
+#define STA2X11_GPIO48_SPI0_CLK 48
+#define STA2X11_GPIO49_SPI0_TXD 49
+#define STA2X11_GPIO50_SPI0_RXD 50
+#define STA2X11_GPIO51_SPI0_FRM 51
+#define STA2X11_GPIO52_SPI1_CLK 52
+#define STA2X11_GPIO53_SPI1_TXD 53
+#define STA2X11_GPIO54_SPI1_RXD 54
+#define STA2X11_GPIO55_SPI1_FRM 55
+#define STA2X11_GPIO56_SPI2_CLK 56
+#define STA2X11_GPIO57_SPI2_TXD 57
+#define STA2X11_GPIO58_SPI2_RXD 58
+#define STA2X11_GPIO59_SPI2_FRM 59
+#define STA2X11_GPIO60_I2C0_SCL 60
+#define STA2X11_GPIO61_I2C0_SDA 61
+#define STA2X11_GPIO62_I2C1_SCL 62
+#define STA2X11_GPIO63_I2C1_SDA 63
+#define STA2X11_GPIO64_I2C2_SCL 64
+#define STA2X11_GPIO65_I2C2_SDA 65
+#define STA2X11_GPIO66_I2C3_SCL 66
+#define STA2X11_GPIO67_I2C3_SDA 67
+#define STA2X11_GPIO68_MSP0_RCK 68
+#define STA2X11_GPIO69_MSP0_RXD 69
+#define STA2X11_GPIO70_MSP0_RFS 70
+#define STA2X11_GPIO71_MSP0_TCK 71
+#define STA2X11_GPIO72_MSP0_TXD 72
+#define STA2X11_GPIO73_MSP0_TFS 73
+#define STA2X11_GPIO74_MSP0_SCK 74
+#define STA2X11_GPIO75_MSP1_CK 75
+#define STA2X11_GPIO76_MSP1_RXD 76
+#define STA2X11_GPIO77_MSP1_FS 77
+#define STA2X11_GPIO78_MSP1_TXD 78
+#define STA2X11_GPIO79_MSP2_CK 79
+#define STA2X11_GPIO80_MSP2_RXD 80
+#define STA2X11_GPIO81_MSP2_FS 81
+#define STA2X11_GPIO82_MSP2_TXD 82
+#define STA2X11_GPIO83_MSP3_CK 83
+#define STA2X11_GPIO84_MSP3_RXD 84
+#define STA2X11_GPIO85_MSP3_FS 85
+#define STA2X11_GPIO86_MSP3_TXD 86
+#define STA2X11_GPIO87_MSP4_CK 87
+#define STA2X11_GPIO88_MSP4_RXD 88
+#define STA2X11_GPIO89_MSP4_FS 89
+#define STA2X11_GPIO90_MSP4_TXD 90
+#define STA2X11_GPIO91_MSP5_CK 91
+#define STA2X11_GPIO92_MSP5_RXD 92
+#define STA2X11_GPIO93_MSP5_FS 93
+#define STA2X11_GPIO94_MSP5_TXD 94
+#define STA2X11_GPIO95_SDIO3_DAT3 95
+#define STA2X11_GPIO96_SDIO3_DAT2 96
+#define STA2X11_GPIO97_SDIO3_DAT1 97
+#define STA2X11_GPIO98_SDIO3_DAT0 98
+#define STA2X11_GPIO99_SDIO3_CLK 99
+#define STA2X11_GPIO100_SDIO3_CMD 100
+#define STA2X11_GPIO101 101
+#define STA2X11_GPIO102 102
+#define STA2X11_GPIO103 103
+#define STA2X11_GPIO104 104
+#define STA2X11_GPIO105_SDIO2_DAT3 105
+#define STA2X11_GPIO106_SDIO2_DAT2 106
+#define STA2X11_GPIO107_SDIO2_DAT1 107
+#define STA2X11_GPIO108_SDIO2_DAT0 108
+#define STA2X11_GPIO109_SDIO2_CLK 109
+#define STA2X11_GPIO110_SDIO2_CMD 110
+#define STA2X11_GPIO111 111
+#define STA2X11_GPIO112 112
+#define STA2X11_GPIO113 113
+#define STA2X11_GPIO114 114
+#define STA2X11_GPIO115_SDIO1_DAT3 115
+#define STA2X11_GPIO116_SDIO1_DAT2 116
+#define STA2X11_GPIO117_SDIO1_DAT1 117
+#define STA2X11_GPIO118_SDIO1_DAT0 118
+#define STA2X11_GPIO119_SDIO1_CLK 119
+#define STA2X11_GPIO120_SDIO1_CMD 120
+#define STA2X11_GPIO121 121
+#define STA2X11_GPIO122 122
+#define STA2X11_GPIO123 123
+#define STA2X11_GPIO124 124
+#define STA2X11_GPIO125_UART2_TXD 125
+#define STA2X11_GPIO126_UART2_RXD 126
+#define STA2X11_GPIO127_UART3_TXD 127
+
+/*
+ * The APB bridge has its own registers, needed by our users as well.
+ * They are accessed with the following read/mask/write function.
+ */
+u32 sta2x11_apbreg_mask(struct pci_dev *pdev, u32 reg, u32 mask, u32 val);
+
+/* CAN and MLB */
+#define APBREG_BSR 0x00 /* Bridge Status Reg */
+#define APBREG_PAER 0x08 /* Peripherals Address Error Reg */
+#define APBREG_PWAC 0x20 /* Peripheral Write Access Control reg */
+#define APBREG_PRAC 0x40 /* Peripheral Read Access Control reg */
+#define APBREG_PCG 0x60 /* Peripheral Clock Gating Reg */
+#define APBREG_PUR 0x80 /* Peripheral Under Reset Reg */
+#define APBREG_EMU_PCG 0xA0 /* Emulator Peripheral Clock Gating Reg */
+
+#define APBREG_CAN (1 << 1)
+#define APBREG_MLB (1 << 3)
+
+/* SARAC */
+#define APBREG_BSR_SARAC 0x100 /* Bridge Status Reg */
+#define APBREG_PAER_SARAC 0x108 /* Peripherals Address Error Reg */
+#define APBREG_PWAC_SARAC 0x120 /* Peripheral Write Access Control reg */
+#define APBREG_PRAC_SARAC 0x140 /* Peripheral Read Access Control reg */
+#define APBREG_PCG_SARAC 0x160 /* Peripheral Clock Gating Reg */
+#define APBREG_PUR_SARAC 0x180 /* Peripheral Under Reset Reg */
+#define APBREG_EMU_PCG_SARAC 0x1A0 /* Emulator Peripheral Clock Gating Reg */
+
+#define APBREG_SARAC (1 << 2)
+
+/*
+ * The system controller has its own registers. Some of these are accessed
+ * by out users as well, using the following read/mask/write/function
+ */
+u32 sta2x11_sctl_mask(struct pci_dev *pdev, u32 reg, u32 mask, u32 val);
+
+#define SCTL_SCCTL 0x00 /* System controller control register */
+#define SCTL_ARMCFG 0x04 /* ARM configuration register */
+#define SCTL_SCPLLCTL 0x08 /* PLL control status register */
+#define SCTL_SCPLLFCTRL 0x0c /* PLL frequency control register */
+#define SCTL_SCRESFRACT 0x10 /* PLL fractional input register */
+#define SCTL_SCRESCTRL1 0x14 /* Peripheral reset control 1 */
+#define SCTL_SCRESXTRL2 0x18 /* Peripheral reset control 2 */
+#define SCTL_SCPEREN0 0x1c /* Peripheral clock enable register 0 */
+#define SCTL_SCPEREN1 0x20 /* Peripheral clock enable register 1 */
+#define SCTL_SCPEREN2 0x24 /* Peripheral clock enable register 2 */
+#define SCTL_SCGRST 0x28 /* Peripheral global reset */
+#define SCTL_SCPCIPMCR1 0x30 /* PCI power management control 1 */
+#define SCTL_SCPCIPMCR2 0x34 /* PCI power management control 2 */
+#define SCTL_SCPCIPMSR1 0x38 /* PCI power management status 1 */
+#define SCTL_SCPCIPMSR2 0x3c /* PCI power management status 2 */
+#define SCTL_SCPCIPMSR3 0x40 /* PCI power management status 3 */
+#define SCTL_SCINTREN 0x44 /* Interrupt enable */
+#define SCTL_SCRISR 0x48 /* RAW interrupt status */
+#define SCTL_SCCLKSTAT0 0x4c /* Peripheral clocks status 0 */
+#define SCTL_SCCLKSTAT1 0x50 /* Peripheral clocks status 1 */
+#define SCTL_SCCLKSTAT2 0x54 /* Peripheral clocks status 2 */
+#define SCTL_SCRSTSTA 0x58 /* Reset status register */
+
+#define SCTL_SCRESCTRL1_USB_PHY_POR (1 << 0)
+#define SCTL_SCRESCTRL1_USB_OTG (1 << 1)
+#define SCTL_SCRESCTRL1_USB_HRST (1 << 2)
+#define SCTL_SCRESCTRL1_USB_PHY_HOST (1 << 3)
+#define SCTL_SCRESCTRL1_SATAII (1 << 4)
+#define SCTL_SCRESCTRL1_VIP (1 << 5)
+#define SCTL_SCRESCTRL1_PER_MMC0 (1 << 6)
+#define SCTL_SCRESCTRL1_PER_MMC1 (1 << 7)
+#define SCTL_SCRESCTRL1_PER_GPIO0 (1 << 8)
+#define SCTL_SCRESCTRL1_PER_GPIO1 (1 << 9)
+#define SCTL_SCRESCTRL1_PER_GPIO2 (1 << 10)
+#define SCTL_SCRESCTRL1_PER_GPIO3 (1 << 11)
+#define SCTL_SCRESCTRL1_PER_MTU0 (1 << 12)
+#define SCTL_SCRESCTRL1_KER_SPI0 (1 << 13)
+#define SCTL_SCRESCTRL1_KER_SPI1 (1 << 14)
+#define SCTL_SCRESCTRL1_KER_SPI2 (1 << 15)
+#define SCTL_SCRESCTRL1_KER_MCI0 (1 << 16)
+#define SCTL_SCRESCTRL1_KER_MCI1 (1 << 17)
+#define SCTL_SCRESCTRL1_PRE_HSI2C0 (1 << 18)
+#define SCTL_SCRESCTRL1_PER_HSI2C1 (1 << 19)
+#define SCTL_SCRESCTRL1_PER_HSI2C2 (1 << 20)
+#define SCTL_SCRESCTRL1_PER_HSI2C3 (1 << 21)
+#define SCTL_SCRESCTRL1_PER_MSP0 (1 << 22)
+#define SCTL_SCRESCTRL1_PER_MSP1 (1 << 23)
+#define SCTL_SCRESCTRL1_PER_MSP2 (1 << 24)
+#define SCTL_SCRESCTRL1_PER_MSP3 (1 << 25)
+#define SCTL_SCRESCTRL1_PER_MSP4 (1 << 26)
+#define SCTL_SCRESCTRL1_PER_MSP5 (1 << 27)
+#define SCTL_SCRESCTRL1_PER_MMC (1 << 28)
+#define SCTL_SCRESCTRL1_KER_MSP0 (1 << 29)
+#define SCTL_SCRESCTRL1_KER_MSP1 (1 << 30)
+#define SCTL_SCRESCTRL1_KER_MSP2 (1 << 31)
+
+#define SCTL_SCPEREN0_UART0 (1 << 0)
+#define SCTL_SCPEREN0_UART1 (1 << 1)
+#define SCTL_SCPEREN0_UART2 (1 << 2)
+#define SCTL_SCPEREN0_UART3 (1 << 3)
+#define SCTL_SCPEREN0_MSP0 (1 << 4)
+#define SCTL_SCPEREN0_MSP1 (1 << 5)
+#define SCTL_SCPEREN0_MSP2 (1 << 6)
+#define SCTL_SCPEREN0_MSP3 (1 << 7)
+#define SCTL_SCPEREN0_MSP4 (1 << 8)
+#define SCTL_SCPEREN0_MSP5 (1 << 9)
+#define SCTL_SCPEREN0_SPI0 (1 << 10)
+#define SCTL_SCPEREN0_SPI1 (1 << 11)
+#define SCTL_SCPEREN0_SPI2 (1 << 12)
+#define SCTL_SCPEREN0_I2C0 (1 << 13)
+#define SCTL_SCPEREN0_I2C1 (1 << 14)
+#define SCTL_SCPEREN0_I2C2 (1 << 15)
+#define SCTL_SCPEREN0_I2C3 (1 << 16)
+#define SCTL_SCPEREN0_SVDO_LVDS (1 << 17)
+#define SCTL_SCPEREN0_USB_HOST (1 << 18)
+#define SCTL_SCPEREN0_USB_OTG (1 << 19)
+#define SCTL_SCPEREN0_MCI0 (1 << 20)
+#define SCTL_SCPEREN0_MCI1 (1 << 21)
+#define SCTL_SCPEREN0_MCI2 (1 << 22)
+#define SCTL_SCPEREN0_MCI3 (1 << 23)
+#define SCTL_SCPEREN0_SATA (1 << 24)
+#define SCTL_SCPEREN0_ETHERNET (1 << 25)
+#define SCTL_SCPEREN0_VIC (1 << 26)
+#define SCTL_SCPEREN0_DMA_AUDIO (1 << 27)
+#define SCTL_SCPEREN0_DMA_SOC (1 << 28)
+#define SCTL_SCPEREN0_RAM (1 << 29)
+#define SCTL_SCPEREN0_VIP (1 << 30)
+#define SCTL_SCPEREN0_ARM (1 << 31)
+
+#define SCTL_SCPEREN1_UART0 (1 << 0)
+#define SCTL_SCPEREN1_UART1 (1 << 1)
+#define SCTL_SCPEREN1_UART2 (1 << 2)
+#define SCTL_SCPEREN1_UART3 (1 << 3)
+#define SCTL_SCPEREN1_MSP0 (1 << 4)
+#define SCTL_SCPEREN1_MSP1 (1 << 5)
+#define SCTL_SCPEREN1_MSP2 (1 << 6)
+#define SCTL_SCPEREN1_MSP3 (1 << 7)
+#define SCTL_SCPEREN1_MSP4 (1 << 8)
+#define SCTL_SCPEREN1_MSP5 (1 << 9)
+#define SCTL_SCPEREN1_SPI0 (1 << 10)
+#define SCTL_SCPEREN1_SPI1 (1 << 11)
+#define SCTL_SCPEREN1_SPI2 (1 << 12)
+#define SCTL_SCPEREN1_I2C0 (1 << 13)
+#define SCTL_SCPEREN1_I2C1 (1 << 14)
+#define SCTL_SCPEREN1_I2C2 (1 << 15)
+#define SCTL_SCPEREN1_I2C3 (1 << 16)
+#define SCTL_SCPEREN1_USB_PHY (1 << 17)
+
+#endif /* __STA2X11_MFD_H */
* @no_autorepeat: disable key autorepeat
*/
struct stmpe_keypad_platform_data {
- struct matrix_keymap_data *keymap_data;
+ const struct matrix_keymap_data *keymap_data;
unsigned int debounce_ms;
unsigned int scan_count;
bool no_autorepeat;
#define __LINUX_MFD_TPS65910_H
#include <linux/gpio.h>
+#include <linux/regmap.h>
/* TPS chip id list */
#define TPS65910 0
#define TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3 0x4
#define TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP 0x8
+/*
+ * Sleep keepon data: Maintains the state in sleep mode
+ * @therm_keepon: Keep on the thermal monitoring in sleep state.
+ * @clkout32k_keepon: Keep on the 32KHz clock output in sleep state.
+ * @i2chs_keepon: Keep on high speed internal clock in sleep state.
+ */
+struct tps65910_sleep_keepon_data {
+ unsigned therm_keepon:1;
+ unsigned clkout32k_keepon:1;
+ unsigned i2chs_keepon:1;
+};
+
/**
* struct tps65910_board
* Board platform data may be used to initialize regulators.
int irq_base;
int vmbch_threshold;
int vmbch2_threshold;
+ bool en_dev_slp;
+ struct tps65910_sleep_keepon_data *slp_keepon;
bool en_gpio_sleep[TPS6591X_MAX_NUM_GPIO];
unsigned long regulator_ext_sleep_control[TPS65910_NUM_REGS];
struct regulator_init_data *tps65910_pmic_init_data[TPS65910_NUM_REGS];
struct regmap *regmap;
struct mutex io_mutex;
unsigned int id;
- int (*read)(struct tps65910 *tps65910, u8 reg, int size, void *dest);
- int (*write)(struct tps65910 *tps65910, u8 reg, int size, void *src);
/* Client devices */
struct tps65910_pmic *pmic;
struct tps65910_rtc *rtc;
struct tps65910_power *power;
- /* GPIO Handling */
- struct gpio_chip gpio;
+ /* Device node parsed board data */
+ struct tps65910_board *of_plat_data;
/* IRQ Handling */
struct mutex irq_lock;
int irq_base;
int irq_num;
u32 irq_mask;
+ struct irq_domain *domain;
};
struct tps65910_platform_data {
int irq_base;
};
-int tps65910_set_bits(struct tps65910 *tps65910, u8 reg, u8 mask);
-int tps65910_clear_bits(struct tps65910 *tps65910, u8 reg, u8 mask);
-void tps65910_gpio_init(struct tps65910 *tps65910, int gpio_base);
int tps65910_irq_init(struct tps65910 *tps65910, int irq,
struct tps65910_platform_data *pdata);
int tps65910_irq_exit(struct tps65910 *tps65910);
return tps65910->id;
}
+static inline int tps65910_reg_read(struct tps65910 *tps65910, u8 reg,
+ unsigned int *val)
+{
+ return regmap_read(tps65910->regmap, reg, val);
+}
+
+static inline int tps65910_reg_write(struct tps65910 *tps65910, u8 reg,
+ unsigned int val)
+{
+ return regmap_write(tps65910->regmap, reg, val);
+}
+
+static inline int tps65910_reg_set_bits(struct tps65910 *tps65910, u8 reg,
+ u8 mask)
+{
+ return regmap_update_bits(tps65910->regmap, reg, mask, mask);
+}
+
+static inline int tps65910_reg_clear_bits(struct tps65910 *tps65910, u8 reg,
+ u8 mask)
+{
+ return regmap_update_bits(tps65910->regmap, reg, mask, 0);
+}
+
#endif /* __LINUX_MFD_TPS65910_H */
#include <linux/interrupt.h>
#include <linux/mfd/core.h>
+#include <linux/regulator/consumer.h>
#define TWL6040_REG_ASICID 0x01
#define TWL6040_REG_ASICREV 0x02
struct twl6040 {
struct device *dev;
struct regmap *regmap;
+ struct regulator_bulk_data supplies[2]; /* supplies for vio, v2v1 */
struct mutex mutex;
struct mutex io_mutex;
struct mutex irq_mutex;
#include <linux/completion.h>
#include <linux/interrupt.h>
+#include <linux/irqdomain.h>
#include <linux/list.h>
#include <linux/regmap.h>
#define WM831X_FLL_CLK_SRC_WIDTH 2 /* FLL_CLK_SRC - [1:0] */
struct regulator_dev;
+struct irq_domain;
#define WM831X_NUM_IRQ_REGS 5
#define WM831X_NUM_GPIO_REGS 16
int irq; /* Our chip IRQ */
struct mutex irq_lock;
- int irq_base;
+ struct irq_domain *irq_domain;
int irq_masks_cur[WM831X_NUM_IRQ_REGS]; /* Currently active value */
int irq_masks_cache[WM831X_NUM_IRQ_REGS]; /* Cached hardware value */
/* Used by the interrupt controller code to post writes */
int gpio_update[WM831X_NUM_GPIO_REGS];
- bool gpio_level[WM831X_NUM_GPIO_REGS];
+ bool gpio_level_high[WM831X_NUM_GPIO_REGS];
+ bool gpio_level_low[WM831X_NUM_GPIO_REGS];
struct mutex auxadc_lock;
struct list_head auxadc_pending;
void wm831x_irq_exit(struct wm831x *wm831x);
void wm831x_auxadc_init(struct wm831x *wm831x);
+static inline int wm831x_irq(struct wm831x *wm831x, int irq)
+{
+ return irq_create_mapping(wm831x->irq_domain, irq);
+}
+
extern struct regmap_config wm831x_regmap_config;
#endif
extern const u16 wm8352_mode3_defaults[];
struct wm8350;
+struct regmap;
struct wm8350_hwmon {
struct platform_device *pdev;
struct device *dev;
/* device IO */
- union {
- struct i2c_client *i2c_client;
- struct spi_device *spi_device;
- };
- int (*read_dev)(struct wm8350 *wm8350, char reg, int size, void *dest);
- int (*write_dev)(struct wm8350 *wm8350, char reg, int size,
- void *src);
+ struct regmap *regmap;
u16 *reg_cache;
struct mutex auxadc_mutex;
#include <linux/mfd/wm8400.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
-
-struct regmap;
+#include <linux/regmap.h>
#define WM8400_REGISTER_COUNT 0x55
struct wm8400 {
struct device *dev;
-
- struct mutex io_lock;
struct regmap *regmap;
- u16 reg_cache[WM8400_REGISTER_COUNT];
-
struct platform_device regulators[6];
};
u16 wm8400_reg_read(struct wm8400 *wm8400, u8 reg);
int wm8400_block_read(struct wm8400 *wm8400, u8 reg, int count, u16 *data);
-int wm8400_set_bits(struct wm8400 *wm8400, u8 reg, u16 mask, u16 val);
+
+static inline int wm8400_set_bits(struct wm8400 *wm8400, u8 reg,
+ u16 mask, u16 val)
+{
+ return regmap_update_bits(wm8400->regmap, reg, mask, val);
+}
#endif
enum wm8994_type type;
int revision;
+ int cust_id;
struct device *dev;
struct regmap *regmap;
/*
* R256 (0x100) - Chip Revision
*/
+#define WM8994_CUST_ID_MASK 0xFF00 /* CUST_ID - [15:8] */
+#define WM8994_CUST_ID_SHIFT 8 /* CUST_ID - [15:8] */
+#define WM8994_CUST_ID_WIDTH 8 /* CUST_ID - [15:8] */
#define WM8994_CHIP_REV_MASK 0x000F /* CHIP_REV - [3:0] */
#define WM8994_CHIP_REV_SHIFT 0 /* CHIP_REV - [3:0] */
#define WM8994_CHIP_REV_WIDTH 4 /* CHIP_REV - [3:0] */
static inline void compound_lock(struct page *page)
{
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ VM_BUG_ON(PageSlab(page));
bit_spin_lock(PG_compound_lock, &page->flags);
#endif
}
static inline void compound_unlock(struct page *page)
{
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ VM_BUG_ON(PageSlab(page));
bit_spin_unlock(PG_compound_lock, &page->flags);
#endif
}
extern void show_free_areas(unsigned int flags);
extern bool skip_free_areas_node(unsigned int flags, int nid);
-int shmem_lock(struct file *file, int lock, struct user_struct *user);
-struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags);
int shmem_zero_setup(struct vm_area_struct *);
extern int can_do_mlock(void);
extern void truncate_pagecache(struct inode *inode, loff_t old, loff_t new);
extern void truncate_setsize(struct inode *inode, loff_t newsize);
extern int vmtruncate(struct inode *inode, loff_t offset);
-extern int vmtruncate_range(struct inode *inode, loff_t offset, loff_t end);
void truncate_pagecache_range(struct inode *inode, loff_t offset, loff_t end);
int truncate_inode_page(struct address_space *mapping, struct page *page);
int generic_error_remove_page(struct address_space *mapping, struct page *page);
-
int invalidate_inode_page(struct page *page);
#ifdef CONFIG_MMU
extern unsigned long mmap_region(struct file *file, unsigned long addr,
unsigned long len, unsigned long flags,
vm_flags_t vm_flags, unsigned long pgoff);
-extern unsigned long do_mmap(struct file *, unsigned long,
+extern unsigned long do_mmap_pgoff(struct file *, unsigned long,
unsigned long, unsigned long,
unsigned long, unsigned long);
extern int do_munmap(struct mm_struct *, unsigned long, size_t);
return !PageSwapBacked(page);
}
-static inline void
-add_page_to_lru_list(struct zone *zone, struct page *page, enum lru_list lru)
+static __always_inline void add_page_to_lru_list(struct page *page,
+ struct lruvec *lruvec, enum lru_list lru)
{
- struct lruvec *lruvec;
-
- lruvec = mem_cgroup_lru_add_list(zone, page, lru);
+ int nr_pages = hpage_nr_pages(page);
+ mem_cgroup_update_lru_size(lruvec, lru, nr_pages);
list_add(&page->lru, &lruvec->lists[lru]);
- __mod_zone_page_state(zone, NR_LRU_BASE + lru, hpage_nr_pages(page));
+ __mod_zone_page_state(lruvec_zone(lruvec), NR_LRU_BASE + lru, nr_pages);
}
-static inline void
-del_page_from_lru_list(struct zone *zone, struct page *page, enum lru_list lru)
+static __always_inline void del_page_from_lru_list(struct page *page,
+ struct lruvec *lruvec, enum lru_list lru)
{
- mem_cgroup_lru_del_list(page, lru);
+ int nr_pages = hpage_nr_pages(page);
+ mem_cgroup_update_lru_size(lruvec, lru, -nr_pages);
list_del(&page->lru);
- __mod_zone_page_state(zone, NR_LRU_BASE + lru, -hpage_nr_pages(page));
+ __mod_zone_page_state(lruvec_zone(lruvec), NR_LRU_BASE + lru, -nr_pages);
}
/**
* Returns the LRU list a page was on, as an index into the array of LRU
* lists; and clears its Unevictable or Active flags, ready for freeing.
*/
-static inline enum lru_list page_off_lru(struct page *page)
+static __always_inline enum lru_list page_off_lru(struct page *page)
{
enum lru_list lru;
* Returns the LRU list a page should be on, as an index
* into the array of LRU lists.
*/
-static inline enum lru_list page_lru(struct page *page)
+static __always_inline enum lru_list page_lru(struct page *page)
{
enum lru_list lru;
/* Architecture-specific MM context */
mm_context_t context;
- /* Swap token stuff */
- /*
- * Last value of global fault stamp as seen by this process.
- * In other words, this value gives an indication of how long
- * it has been since this task got the token.
- * Look at mm/thrash.c
- */
- unsigned int faultstamp;
- unsigned int token_priority;
- unsigned int last_interval;
-
unsigned long flags; /* Must use atomic bitops to access the bits */
struct core_state *core_state; /* coredumping support */
#ifdef CONFIG_DEBUG_VM
#define VM_BUG_ON(cond) BUG_ON(cond)
#else
-#define VM_BUG_ON(cond) do { (void)(cond); } while (0)
+#define VM_BUG_ON(cond) BUILD_BUG_ON_INVALID(cond)
#endif
#ifdef CONFIG_DEBUG_VIRTUAL
return (lru == LRU_UNEVICTABLE);
}
+struct zone_reclaim_stat {
+ /*
+ * The pageout code in vmscan.c keeps track of how many of the
+ * mem/swap backed and file backed pages are refeferenced.
+ * The higher the rotated/scanned ratio, the more valuable
+ * that cache is.
+ *
+ * The anon LRU stats live in [0], file LRU stats in [1]
+ */
+ unsigned long recent_rotated[2];
+ unsigned long recent_scanned[2];
+};
+
struct lruvec {
struct list_head lists[NR_LRU_LISTS];
+ struct zone_reclaim_stat reclaim_stat;
+#ifdef CONFIG_CGROUP_MEM_RES_CTLR
+ struct zone *zone;
+#endif
};
/* Mask used at gathering information at once (see memcontrol.c) */
#define LRU_ALL_EVICTABLE (LRU_ALL_FILE | LRU_ALL_ANON)
#define LRU_ALL ((1 << NR_LRU_LISTS) - 1)
-/* Isolate inactive pages */
-#define ISOLATE_INACTIVE ((__force isolate_mode_t)0x1)
-/* Isolate active pages */
-#define ISOLATE_ACTIVE ((__force isolate_mode_t)0x2)
/* Isolate clean file */
-#define ISOLATE_CLEAN ((__force isolate_mode_t)0x4)
+#define ISOLATE_CLEAN ((__force isolate_mode_t)0x1)
/* Isolate unmapped file */
-#define ISOLATE_UNMAPPED ((__force isolate_mode_t)0x8)
+#define ISOLATE_UNMAPPED ((__force isolate_mode_t)0x2)
/* Isolate for asynchronous migration */
-#define ISOLATE_ASYNC_MIGRATE ((__force isolate_mode_t)0x10)
+#define ISOLATE_ASYNC_MIGRATE ((__force isolate_mode_t)0x4)
/* LRU Isolation modes. */
typedef unsigned __bitwise__ isolate_mode_t;
#error ZONES_SHIFT -- too many zones configured adjust calculation
#endif
-struct zone_reclaim_stat {
- /*
- * The pageout code in vmscan.c keeps track of how many of the
- * mem/swap backed and file backed pages are refeferenced.
- * The higher the rotated/scanned ratio, the more valuable
- * that cache is.
- *
- * The anon LRU stats live in [0], file LRU stats in [1]
- */
- unsigned long recent_rotated[2];
- unsigned long recent_scanned[2];
-};
-
struct zone {
/* Fields commonly accessed by the page allocator */
spinlock_t lru_lock;
struct lruvec lruvec;
- struct zone_reclaim_stat reclaim_stat;
-
unsigned long pages_scanned; /* since last reclaim */
unsigned long flags; /* zone flags, see below */
unsigned long size,
enum memmap_context context);
+extern void lruvec_init(struct lruvec *lruvec, struct zone *zone);
+
+static inline struct zone *lruvec_zone(struct lruvec *lruvec)
+{
+#ifdef CONFIG_CGROUP_MEM_RES_CTLR
+ return lruvec->zone;
+#else
+ return container_of(lruvec, struct zone, lruvec);
+#endif
+}
+
#ifdef CONFIG_HAVE_MEMORY_PRESENT
void memory_present(int nid, unsigned long start, unsigned long end);
#else
#define CT_LE_W(v) cpu_to_le16(v)
#define CT_LE_L(v) cpu_to_le32(v)
+#define MSDOS_ROOT_INO 1 /* The root inode number */
+#define MSDOS_FSINFO_INO 2 /* Used for managing the FSINFO block */
-#define MSDOS_ROOT_INO 1 /* == MINIX_ROOT_INO */
#define MSDOS_DIR_BITS 5 /* log2(sizeof(struct msdos_dir_entry)) */
/* directory limit */
MODULE_ALIAS("net-pf-" __stringify(pf) "-proto-" __stringify(proto) \
"-type-" __stringify(type))
+#define MODULE_ALIAS_NET_PF_PROTO_NAME(pf, proto, name) \
+ MODULE_ALIAS("net-pf-" __stringify(pf) "-proto-" __stringify(proto) \
+ name)
#endif /* __KERNEL__ */
#endif /* _LINUX_NET_H */
#define netif_info(priv, type, dev, fmt, args...) \
netif_level(info, priv, type, dev, fmt, ##args)
-#if defined(DEBUG)
-#define netif_dbg(priv, type, dev, format, args...) \
- netif_printk(priv, type, KERN_DEBUG, dev, format, ##args)
-#elif defined(CONFIG_DYNAMIC_DEBUG)
+#if defined(CONFIG_DYNAMIC_DEBUG)
#define netif_dbg(priv, type, netdev, format, args...) \
do { \
if (netif_msg_##type(priv)) \
dynamic_netdev_dbg(netdev, format, ##args); \
} while (0)
+#elif defined(DEBUG)
+#define netif_dbg(priv, type, dev, format, args...) \
+ netif_printk(priv, type, KERN_DEBUG, dev, format, ##args)
#else
#define netif_dbg(priv, type, dev, format, args...) \
({ \
#define NFS4_CDFC4_FORE_OR_BOTH 0x3
#define NFS4_CDFC4_BACK_OR_BOTH 0x7
+#define NFS4_CDFS4_FORE 0x1
+#define NFS4_CDFS4_BACK 0x2
+#define NFS4_CDFS4_BOTH 0x3
+
#define NFS4_SET_TO_SERVER_TIME 0
#define NFS4_SET_TO_CLIENT_TIME 1
#define FATTR4_WORD1_MOUNTED_ON_FILEID (1UL << 23)
#define FATTR4_WORD1_FS_LAYOUT_TYPES (1UL << 30)
#define FATTR4_WORD2_LAYOUT_BLKSIZE (1UL << 1)
+#define FATTR4_WORD2_MDSTHRESHOLD (1UL << 4)
+
+/* MDS threshold bitmap bits */
+#define THRESHOLD_RD (1UL << 0)
+#define THRESHOLD_WR (1UL << 1)
+#define THRESHOLD_RD_IO (1UL << 2)
+#define THRESHOLD_WR_IO (1UL << 3)
#define NFSPROC4_NULL 0
#define NFSPROC4_COMPOUND 1
NFSPROC4_CLNT_TEST_STATEID,
NFSPROC4_CLNT_FREE_STATEID,
NFSPROC4_CLNT_GETDEVICELIST,
+ NFSPROC4_CLNT_BIND_CONN_TO_SESSION,
+ NFSPROC4_CLNT_DESTROY_CLIENTID,
};
/* nfs41 types */
int error;
struct list_head list;
+ struct nfs4_threshold *mdsthreshold;
};
struct nfs_open_dir_context {
__be32 cookieverf[2];
unsigned long npages;
- unsigned long ncommit;
- struct list_head commit_list;
+ struct nfs_mds_commit_info commit_info;
/* Open contexts for shared mmap writes */
struct list_head open_files;
/* pNFS layout information */
struct pnfs_layout_hdr *layout;
- atomic_t commits_outstanding;
#endif /* CONFIG_NFS_V4*/
+ /* how many bytes have been written/read and how many bytes queued up */
+ __u64 write_io;
+ __u64 read_io;
#ifdef CONFIG_NFS_FSCACHE
struct fscache_cookie *fscache;
#endif
#define NFS_INO_FSCACHE (5) /* inode can be cached by FS-Cache */
#define NFS_INO_FSCACHE_LOCK (6) /* FS-Cache cookie management lock */
#define NFS_INO_COMMIT (7) /* inode is committing unstable writes */
-#define NFS_INO_PNFS_COMMIT (8) /* use pnfs code for commit */
#define NFS_INO_LAYOUTCOMMIT (9) /* layoutcommit required */
#define NFS_INO_LAYOUTCOMMITTING (10) /* layoutcommit inflight */
return NFS_SERVER(inode)->caps & cap;
}
-static inline int NFS_USE_READDIRPLUS(struct inode *inode)
-{
- return test_bit(NFS_INO_ADVISE_RDPLUS, &NFS_I(inode)->flags);
-}
-
static inline void nfs_set_verifier(struct dentry * dentry, unsigned long verf)
{
dentry->d_time = verf;
extern int nfs_wb_page_cancel(struct inode *inode, struct page* page);
#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
extern int nfs_commit_inode(struct inode *, int);
-extern struct nfs_write_data *nfs_commitdata_alloc(void);
-extern void nfs_commit_free(struct nfs_write_data *wdata);
+extern struct nfs_commit_data *nfs_commitdata_alloc(void);
+extern void nfs_commit_free(struct nfs_commit_data *data);
#else
static inline int
nfs_commit_inode(struct inode *inode, int how)
return NFS_I(inode)->npages != 0;
}
-/*
- * Allocate nfs_write_data structures
- */
-extern struct nfs_write_data *nfs_writedata_alloc(unsigned int npages);
-extern void nfs_writedata_free(struct nfs_write_data *);
-
/*
* linux/fs/nfs/read.c
*/
extern int nfs_readpage_async(struct nfs_open_context *, struct inode *,
struct page *);
-/*
- * Allocate nfs_read_data structures
- */
-extern struct nfs_read_data *nfs_readdata_alloc(unsigned int npages);
-extern void nfs_readdata_free(struct nfs_read_data *);
-
/*
* linux/fs/nfs3proc.c
*/
#define NFSDBG_FSCACHE 0x0800
#define NFSDBG_PNFS 0x1000
#define NFSDBG_PNFS_LD 0x2000
+#define NFSDBG_STATE 0x4000
#define NFSDBG_ALL 0xFFFF
#ifdef __KERNEL__
struct nfs4_sequence_res;
struct nfs_server;
struct nfs4_minor_version_ops;
-struct server_scope;
+struct nfs41_server_scope;
struct nfs41_impl_id;
/*
#define NFS_CS_RENEWD 3 /* - renewd started */
#define NFS_CS_STOP_RENEW 4 /* no more state to renew */
#define NFS_CS_CHECK_LEASE_TIME 5 /* need to check lease time */
+ unsigned long cl_flags; /* behavior switches */
+#define NFS_CS_NORESVPORT 0 /* - use ephemeral src port */
+#define NFS_CS_DISCRTRY 1 /* - disconnect on RPC retry */
struct sockaddr_storage cl_addr; /* server identifier */
size_t cl_addrlen;
char * cl_hostname; /* hostname of server */
struct rpc_wait_queue cl_rpcwaitq;
- /* used for the setclientid verifier */
- struct timespec cl_boot_time;
-
/* idmapper */
struct idmap * cl_idmap;
u32 cl_seqid;
/* The flags used for obtaining the clientid during EXCHANGE_ID */
u32 cl_exchange_flags;
- struct nfs4_session *cl_session; /* sharred session */
+ struct nfs4_session *cl_session; /* shared session */
+ struct nfs41_server_owner *cl_serverowner;
+ struct nfs41_server_scope *cl_serverscope;
+ struct nfs41_impl_id *cl_implid;
#endif /* CONFIG_NFS_V4 */
#ifdef CONFIG_NFS_FSCACHE
struct fscache_cookie *fscache; /* client index cache cookie */
#endif
- struct server_scope *server_scope; /* from exchange_id */
- struct nfs41_impl_id *impl_id; /* from exchange_id */
- struct net *net;
+ struct net *cl_net;
};
/*
PG_CLEAN,
PG_NEED_COMMIT,
PG_NEED_RESCHED,
- PG_PARTIAL_READ_FAILED,
PG_COMMIT_TO_DS,
};
struct page *wb_page; /* page to read in/write out */
struct nfs_open_context *wb_context; /* File state context info */
struct nfs_lock_context *wb_lock_context; /* lock context info */
- atomic_t wb_complete; /* i/os we're waiting for */
pgoff_t wb_index; /* Offset >> PAGE_CACHE_SHIFT */
unsigned int wb_offset, /* Offset & ~PAGE_CACHE_MASK */
wb_pgbase, /* Start of page data */
int pg_ioflags;
int pg_error;
const struct rpc_call_ops *pg_rpc_callops;
+ const struct nfs_pgio_completion_ops *pg_completion_ops;
struct pnfs_layout_segment *pg_lseg;
+ struct nfs_direct_req *pg_dreq;
};
#define NFS_WBACK_BUSY(req) (test_bit(PG_BUSY,&(req)->wb_flags))
extern void nfs_pageio_init(struct nfs_pageio_descriptor *desc,
struct inode *inode,
const struct nfs_pageio_ops *pg_ops,
+ const struct nfs_pgio_completion_ops *compl_ops,
size_t bsize,
int how);
extern int nfs_pageio_add_request(struct nfs_pageio_descriptor *,
struct nfs_page *req);
extern int nfs_wait_on_request(struct nfs_page *);
extern void nfs_unlock_request(struct nfs_page *req);
+extern void nfs_unlock_and_release_request(struct nfs_page *req);
/*
- * Lock the page of an asynchronous request without getting a new reference
+ * Lock the page of an asynchronous request
*/
-static inline int
-nfs_lock_request_dontget(struct nfs_page *req)
-{
- return !test_and_set_bit(PG_BUSY, &req->wb_flags);
-}
-
static inline int
nfs_lock_request(struct nfs_page *req)
{
- if (test_and_set_bit(PG_BUSY, &req->wb_flags))
- return 0;
- kref_get(&req->wb_kref);
- return 1;
+ return !test_and_set_bit(PG_BUSY, &req->wb_flags);
}
-
/**
* nfs_list_add_request - Insert a request into a list
* @req: request
return a->major == b->major && a->minor == b->minor;
}
+struct nfs4_threshold {
+ __u32 bm;
+ __u32 l_type;
+ __u64 rd_sz;
+ __u64 wr_sz;
+ __u64 rd_io_sz;
+ __u64 wr_io_sz;
+};
+
struct nfs_fattr {
unsigned int valid; /* which fields are valid */
umode_t mode;
unsigned long gencount;
struct nfs4_string *owner_name;
struct nfs4_string *group_name;
+ struct nfs4_threshold *mdsthreshold; /* pNFS threshold hints */
};
#define NFS_ATTR_FATTR_TYPE (1U << 0)
| NFS_ATTR_FATTR_FILEID \
| NFS_ATTR_FATTR_ATIME \
| NFS_ATTR_FATTR_MTIME \
- | NFS_ATTR_FATTR_CTIME)
+ | NFS_ATTR_FATTR_CTIME \
+ | NFS_ATTR_FATTR_CHANGE)
#define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
| NFS_ATTR_FATTR_BLOCKS_USED)
#define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
| NFS_ATTR_FATTR_SPACE_USED)
#define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
- | NFS_ATTR_FATTR_SPACE_USED \
- | NFS_ATTR_FATTR_CHANGE)
+ | NFS_ATTR_FATTR_SPACE_USED)
/*
* Info on the file system
const struct qstr * name;
const struct nfs_server *server; /* Needed for ID mapping */
const u32 * bitmask;
- const u32 * dir_bitmask;
__u32 claim;
struct nfs4_sequence_args seq_args;
};
struct nfs4_change_info cinfo;
__u32 rflags;
struct nfs_fattr * f_attr;
- struct nfs_fattr * dir_attr;
struct nfs_seqid * seqid;
const struct nfs_server *server;
fmode_t delegation_type;
struct nfs4_sequence_res seq_res;
};
+/*
+ * Arguments to the commit call.
+ */
+struct nfs_commitargs {
+ struct nfs_fh *fh;
+ __u64 offset;
+ __u32 count;
+ const u32 *bitmask;
+ struct nfs4_sequence_args seq_args;
+};
+
+struct nfs_commitres {
+ struct nfs_fattr *fattr;
+ struct nfs_writeverf *verf;
+ const struct nfs_server *server;
+ struct nfs4_sequence_res seq_res;
+};
+
/*
* Common arguments to the unlink call
*/
struct nfs_removeargs {
const struct nfs_fh *fh;
struct qstr name;
- const u32 * bitmask;
struct nfs4_sequence_args seq_args;
};
const struct nfs_fh *new_dir;
const struct qstr *old_name;
const struct qstr *new_name;
- const u32 *bitmask;
struct nfs4_sequence_args seq_args;
};
struct nfs_fh * fh;
struct nfs_fattr * fattr;
struct nfs4_change_info dir_cinfo;
- struct nfs_fattr * dir_fattr;
struct nfs4_sequence_res seq_res;
};
};
#ifdef CONFIG_NFS_V4_1
+
+struct pnfs_commit_bucket {
+ struct list_head written;
+ struct list_head committing;
+ struct pnfs_layout_segment *wlseg;
+ struct pnfs_layout_segment *clseg;
+};
+
+struct pnfs_ds_commit_info {
+ int nwritten;
+ int ncommitting;
+ int nbuckets;
+ struct pnfs_commit_bucket *buckets;
+};
+
#define NFS4_EXCHANGE_ID_LEN (48)
struct nfs41_exchange_id_args {
struct nfs_client *client;
u32 flags;
};
-struct server_owner {
+struct nfs41_server_owner {
uint64_t minor_id;
uint32_t major_id_sz;
char major_id[NFS4_OPAQUE_LIMIT];
};
-struct server_scope {
+struct nfs41_server_scope {
uint32_t server_scope_sz;
char server_scope[NFS4_OPAQUE_LIMIT];
};
struct nfstime4 date;
};
+struct nfs41_bind_conn_to_session_res {
+ struct nfs4_session *session;
+ u32 dir;
+ bool use_conn_in_rdma_mode;
+};
+
struct nfs41_exchange_id_res {
- struct nfs_client *client;
+ u64 clientid;
+ u32 seqid;
u32 flags;
- struct server_scope *server_scope;
+ struct nfs41_server_owner *server_owner;
+ struct nfs41_server_scope *server_scope;
struct nfs41_impl_id *impl_id;
};
struct nfs4_sequence_res seq_res;
};
+#else
+
+struct pnfs_ds_commit_info {
+};
+
#endif /* CONFIG_NFS_V4_1 */
struct nfs_page;
#define NFS_PAGEVEC_SIZE (8U)
+struct nfs_page_array {
+ struct page **pagevec;
+ unsigned int npages; /* Max length of pagevec */
+ struct page *page_array[NFS_PAGEVEC_SIZE];
+};
+
struct nfs_read_data {
+ struct nfs_pgio_header *header;
+ struct list_head list;
struct rpc_task task;
- struct inode *inode;
- struct rpc_cred *cred;
struct nfs_fattr fattr; /* fattr storage */
- struct list_head pages; /* Coalesced read requests */
- struct list_head list; /* lists of struct nfs_read_data */
- struct nfs_page *req; /* multi ops per nfs_page */
- struct page **pagevec;
- unsigned int npages; /* Max length of pagevec */
struct nfs_readargs args;
struct nfs_readres res;
unsigned long timestamp; /* For lease renewal */
- struct pnfs_layout_segment *lseg;
- struct nfs_client *ds_clp; /* pNFS data server */
- const struct rpc_call_ops *mds_ops;
int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
__u64 mds_offset;
+ struct nfs_page_array pages;
+ struct nfs_client *ds_clp; /* pNFS data server */
+};
+
+/* used as flag bits in nfs_pgio_header */
+enum {
+ NFS_IOHDR_ERROR = 0,
+ NFS_IOHDR_EOF,
+ NFS_IOHDR_REDO,
+ NFS_IOHDR_NEED_COMMIT,
+ NFS_IOHDR_NEED_RESCHED,
+};
+
+struct nfs_pgio_header {
+ struct inode *inode;
+ struct rpc_cred *cred;
+ struct list_head pages;
+ struct list_head rpc_list;
+ atomic_t refcnt;
+ struct nfs_page *req;
+ struct pnfs_layout_segment *lseg;
+ loff_t io_start;
+ const struct rpc_call_ops *mds_ops;
+ void (*release) (struct nfs_pgio_header *hdr);
+ const struct nfs_pgio_completion_ops *completion_ops;
+ struct nfs_direct_req *dreq;
+ spinlock_t lock;
+ /* fields protected by lock */
int pnfs_error;
- struct page *page_array[NFS_PAGEVEC_SIZE];
+ int error; /* merge with pnfs_error */
+ unsigned long good_bytes; /* boundary of good data */
+ unsigned long flags;
+};
+
+struct nfs_read_header {
+ struct nfs_pgio_header header;
+ struct nfs_read_data rpc_data;
};
struct nfs_write_data {
+ struct nfs_pgio_header *header;
+ struct list_head list;
+ struct rpc_task task;
+ struct nfs_fattr fattr;
+ struct nfs_writeverf verf;
+ struct nfs_writeargs args; /* argument struct */
+ struct nfs_writeres res; /* result struct */
+ unsigned long timestamp; /* For lease renewal */
+ int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
+ __u64 mds_offset; /* Filelayout dense stripe */
+ struct nfs_page_array pages;
+ struct nfs_client *ds_clp; /* pNFS data server */
+};
+
+struct nfs_write_header {
+ struct nfs_pgio_header header;
+ struct nfs_write_data rpc_data;
+};
+
+struct nfs_mds_commit_info {
+ atomic_t rpcs_out;
+ unsigned long ncommit;
+ struct list_head list;
+};
+
+struct nfs_commit_data;
+struct nfs_inode;
+struct nfs_commit_completion_ops {
+ void (*error_cleanup) (struct nfs_inode *nfsi);
+ void (*completion) (struct nfs_commit_data *data);
+};
+
+struct nfs_commit_info {
+ spinlock_t *lock;
+ struct nfs_mds_commit_info *mds;
+ struct pnfs_ds_commit_info *ds;
+ struct nfs_direct_req *dreq; /* O_DIRECT request */
+ const struct nfs_commit_completion_ops *completion_ops;
+};
+
+struct nfs_commit_data {
struct rpc_task task;
struct inode *inode;
struct rpc_cred *cred;
struct nfs_writeverf verf;
struct list_head pages; /* Coalesced requests we wish to flush */
struct list_head list; /* lists of struct nfs_write_data */
- struct nfs_page *req; /* multi ops per nfs_page */
- struct page **pagevec;
- unsigned int npages; /* Max length of pagevec */
- struct nfs_writeargs args; /* argument struct */
- struct nfs_writeres res; /* result struct */
+ struct nfs_direct_req *dreq; /* O_DIRECT request */
+ struct nfs_commitargs args; /* argument struct */
+ struct nfs_commitres res; /* result struct */
+ struct nfs_open_context *context;
struct pnfs_layout_segment *lseg;
struct nfs_client *ds_clp; /* pNFS data server */
int ds_commit_index;
const struct rpc_call_ops *mds_ops;
- int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
-#ifdef CONFIG_NFS_V4
- unsigned long timestamp; /* For lease renewal */
-#endif
- __u64 mds_offset; /* Filelayout dense stripe */
- int pnfs_error;
- struct page *page_array[NFS_PAGEVEC_SIZE];
+ const struct nfs_commit_completion_ops *completion_ops;
+ int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
+};
+
+struct nfs_pgio_completion_ops {
+ void (*error_cleanup)(struct list_head *head);
+ void (*init_hdr)(struct nfs_pgio_header *hdr);
+ void (*completion)(struct nfs_pgio_header *hdr);
};
struct nfs_unlinkdata {
int (*getroot) (struct nfs_server *, struct nfs_fh *,
struct nfs_fsinfo *);
+ struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
+ struct nfs_fh *, struct nfs_fattr *);
int (*getattr) (struct nfs_server *, struct nfs_fh *,
struct nfs_fattr *);
int (*setattr) (struct dentry *, struct nfs_fattr *,
struct iattr *);
- int (*lookup) (struct rpc_clnt *clnt, struct inode *, struct qstr *,
+ int (*lookup) (struct inode *, struct qstr *,
struct nfs_fh *, struct nfs_fattr *);
int (*access) (struct inode *, struct nfs_access_entry *);
int (*readlink)(struct inode *, struct page *, unsigned int,
void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
void (*write_rpc_prepare)(struct rpc_task *, struct nfs_write_data *);
int (*write_done) (struct rpc_task *, struct nfs_write_data *);
- void (*commit_setup) (struct nfs_write_data *, struct rpc_message *);
- int (*commit_done) (struct rpc_task *, struct nfs_write_data *);
+ void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
+ void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
+ int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
int (*lock)(struct file *, int, struct file_lock *);
int (*lock_check_bounds)(const struct file_lock *);
void (*clear_acl_cache)(struct inode *);
struct nfs_open_context *ctx,
int open_flags,
struct iattr *iattr);
- int (*init_client) (struct nfs_client *, const struct rpc_timeout *,
- const char *, rpc_authflavor_t, int);
- int (*secinfo)(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
+ struct nfs_client *
+ (*init_client) (struct nfs_client *, const struct rpc_timeout *,
+ const char *, rpc_authflavor_t);
};
/*
struct nfsd4_fs_locations ex_fslocs;
int ex_nflavors;
struct exp_flavor_info ex_flavors[MAX_SECINFO_LIST];
+ struct cache_detail *cd;
};
/* an "export key" (expkey) maps a filehandlefragement to an
/*
* Function declarations
*/
-int nfsd_export_init(void);
-void nfsd_export_shutdown(void);
-void nfsd_export_flush(void);
+int nfsd_export_init(struct net *);
+void nfsd_export_shutdown(struct net *);
+void nfsd_export_flush(struct net *);
struct svc_export * rqst_exp_get_by_name(struct svc_rqst *,
struct path *);
struct svc_export * rqst_exp_parent(struct svc_rqst *,
struct path *);
struct svc_export * rqst_find_fsidzero_export(struct svc_rqst *);
-int exp_rootfh(struct auth_domain *,
+int exp_rootfh(struct net *, struct auth_domain *,
char *path, struct knfsd_fh *, int maxsize);
__be32 exp_pseudoroot(struct svc_rqst *, struct svc_fh *);
__be32 nfserrno(int errno);
-extern struct cache_detail svc_export_cache;
-
static inline void exp_put(struct svc_export *exp)
{
- cache_put(&exp->h, &svc_export_cache);
+ cache_put(&exp->h, exp->cd);
}
static inline void exp_get(struct svc_export *exp)
struct pci_dev;
struct of_irq;
-int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq);
+int of_irq_map_pci(const struct pci_dev *pdev, struct of_irq *out_irq);
struct device_node;
struct device_node *of_pci_find_child_device(struct device_node *parent,
extern void compare_swap_oom_score_adj(int old_val, int new_val);
extern int test_set_oom_score_adj(int new_val);
-extern unsigned int oom_badness(struct task_struct *p, struct mem_cgroup *memcg,
- const nodemask_t *nodemask, unsigned long totalpages);
+extern unsigned long oom_badness(struct task_struct *p,
+ struct mem_cgroup *memcg, const nodemask_t *nodemask,
+ unsigned long totalpages);
extern int try_set_zonelist_oom(struct zonelist *zonelist, gfp_t gfp_flags);
extern void clear_zonelist_oom(struct zonelist *zonelist, gfp_t gfp_flags);
*/
static inline int fault_in_multipages_writeable(char __user *uaddr, int size)
{
- int ret;
+ int ret = 0;
char __user *end = uaddr + size - 1;
if (unlikely(size == 0))
- return 0;
+ return ret;
/*
* Writing zeroes into userspace here is OK, because we know that if
int size)
{
volatile char c;
- int ret;
+ int ret = 0;
const char __user *end = uaddr + size - 1;
if (unlikely(size == 0))
- return 0;
+ return ret;
while (uaddr <= end) {
ret = __get_user(c, uaddr);
void pci_read_bridge_bases(struct pci_bus *child);
struct resource *pci_find_parent_resource(const struct pci_dev *dev,
struct resource *res);
-u8 pci_swizzle_interrupt_pin(struct pci_dev *dev, u8 pin);
+u8 pci_swizzle_interrupt_pin(const struct pci_dev *dev, u8 pin);
int pci_get_interrupt_pin(struct pci_dev *dev, struct pci_dev **bridge);
u8 pci_common_swizzle(struct pci_dev *dev, u8 *pinp);
extern struct pci_dev *pci_dev_get(struct pci_dev *dev);
/* Arch may override this (weak) */
extern struct device_node * __weak pcibios_get_phb_of_node(struct pci_bus *bus);
-static inline struct device_node *pci_device_to_OF_node(struct pci_dev *pdev)
+static inline struct device_node *
+pci_device_to_OF_node(const struct pci_dev *pdev)
{
return pdev ? pdev->dev.of_node : NULL;
}
#define PCI_DEVICE_ID_INTEL_MRST_SD2 0x084F
#define PCI_DEVICE_ID_INTEL_I960 0x0960
#define PCI_DEVICE_ID_INTEL_I960RM 0x0962
+#define PCI_DEVICE_ID_INTEL_CENTERTON_ILB 0x0c60
#define PCI_DEVICE_ID_INTEL_8257X_SOL 0x1062
#define PCI_DEVICE_ID_INTEL_82573E_SOL 0x1085
#define PCI_DEVICE_ID_INTEL_82573L_SOL 0x108F
#include <linux/power_supply.h>
enum data_source {
+ CM_BATTERY_PRESENT,
+ CM_NO_BATTERY,
CM_FUEL_GAUGE,
CM_CHARGER_STAT,
};
CM_POLL_CHARGING_ONLY,
};
+enum cm_event_types {
+ CM_EVENT_UNKNOWN = 0,
+ CM_EVENT_BATT_FULL,
+ CM_EVENT_BATT_IN,
+ CM_EVENT_BATT_OUT,
+ CM_EVENT_EXT_PWR_IN_OUT,
+ CM_EVENT_CHG_START_STOP,
+ CM_EVENT_OTHERS,
+};
+
/**
* struct charger_global_desc
* @rtc_name: the name of RTC used to wake up the system from suspend.
* rtc_only_wakeup() returning false.
* If the RTC given to CM is the only wakeup reason,
* rtc_only_wakeup should return true.
+ * @assume_timer_stops_in_suspend:
+ * Assume that the jiffy timer stops in suspend-to-RAM.
+ * When enabled, CM does not rely on jiffies value in
+ * suspend_again and assumes that jiffies value does not
+ * change during suspend.
*/
struct charger_global_desc {
char *rtc_name;
bool (*rtc_only_wakeup)(void);
+
+ bool assume_timer_stops_in_suspend;
};
/**
* @psy_name: the name of power-supply-class for charger manager
* @polling_mode:
* Determine which polling mode will be used
+ * @fullbatt_vchkdrop_ms:
+ * @fullbatt_vchkdrop_uV:
+ * Check voltage drop after the battery is fully charged.
+ * If it has dropped more than fullbatt_vchkdrop_uV after
+ * fullbatt_vchkdrop_ms, CM will restart charging.
* @fullbatt_uV: voltage in microvolt
* If it is not being charged and VBATT >= fullbatt_uV,
* it is assumed to be full.
enum polling_modes polling_mode;
unsigned int polling_interval_ms;
+ unsigned int fullbatt_vchkdrop_ms;
+ unsigned int fullbatt_vchkdrop_uV;
unsigned int fullbatt_uV;
enum data_source battery_present;
* @fuel_gauge: power_supply for fuel gauge
* @charger_stat: array of power_supply for chargers
* @charger_enabled: the state of charger
+ * @fullbatt_vchk_jiffies_at:
+ * jiffies at the time full battery check will occur.
+ * @fullbatt_vchk_uV: voltage in microvolt
+ * criteria for full battery
+ * @fullbatt_vchk_work: work queue for full battery check
* @emergency_stop:
* When setting true, stop charging
* @last_temp_mC: the measured temperature in milli-Celsius
bool charger_enabled;
+ unsigned long fullbatt_vchk_jiffies_at;
+ unsigned int fullbatt_vchk_uV;
+ struct delayed_work fullbatt_vchk_work;
+
int emergency_stop;
int last_temp_mC;
#ifdef CONFIG_CHARGER_MANAGER
extern int setup_charger_manager(struct charger_global_desc *gd);
extern bool cm_suspend_again(void);
+extern void cm_notify_event(struct power_supply *psy,
+ enum cm_event_types type, char *msg);
#else
-static void __maybe_unused setup_charger_manager(struct charger_global_desc *gd)
-{ }
-
-static bool __maybe_unused cm_suspend_again(void)
-{
- return false;
-}
+static inline int setup_charger_manager(struct charger_global_desc *gd)
+{ return 0; }
+static inline bool cm_suspend_again(void) { return false; }
+static inline void cm_notify_event(struct power_supply *psy,
+ enum cm_event_types type, char *msg) { }
#endif
-
#endif /* _CHARGER_MANAGER_H */
MAX17042_VFSOC = 0xFF,
};
+/* Registers specific to max17047/50 */
+enum max17047_register {
+ MAX17047_QRTbl00 = 0x12,
+ MAX17047_FullSOCThr = 0x13,
+ MAX17047_QRTbl10 = 0x22,
+ MAX17047_QRTbl20 = 0x32,
+ MAX17047_V_empty = 0x3A,
+ MAX17047_QRTbl30 = 0x42,
+};
+
+enum max170xx_chip_type {MAX17042, MAX17047};
+
/*
* used for setting a register to a desired value
* addr : address for a register
u16 shdntimer; /* 0x03F */
/* App data */
+ u16 full_soc_thresh; /* 0x13 */
u16 design_cap; /* 0x18 */
u16 ichgt_term; /* 0x1E */
u16 lavg_empty; /* 0x36 */
u16 dqacc; /* 0x45 */
u16 dpacc; /* 0x46 */
+ u16 qrtbl00; /* 0x12 */
+ u16 qrtbl10; /* 0x22 */
+ u16 qrtbl20; /* 0x32 */
+ u16 qrtbl30; /* 0x42 */
/* Cell technology from power_supply.h */
u16 cell_technology;
POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_VOLTAGE_AVG,
+ POWER_SUPPLY_PROP_VOLTAGE_OCV,
POWER_SUPPLY_PROP_CURRENT_MAX,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_CURRENT_AVG,
extern int power_supply_am_i_supplied(struct power_supply *psy);
extern int power_supply_set_battery_charged(struct power_supply *psy);
-#if defined(CONFIG_POWER_SUPPLY) || defined(CONFIG_POWER_SUPPLY_MODULE)
+#ifdef CONFIG_POWER_SUPPLY
extern int power_supply_is_system_supplied(void);
#else
static inline int power_supply_is_system_supplied(void) { return -ENOSYS; }
case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
case POWER_SUPPLY_PROP_VOLTAGE_AVG:
+ case POWER_SUPPLY_PROP_VOLTAGE_OCV:
case POWER_SUPPLY_PROP_POWER_NOW:
return 1;
default:
# define PR_SET_MM_START_STACK 5
# define PR_SET_MM_START_BRK 6
# define PR_SET_MM_BRK 7
+# define PR_SET_MM_ARG_START 8
+# define PR_SET_MM_ARG_END 9
+# define PR_SET_MM_ENV_START 10
+# define PR_SET_MM_ENV_END 11
+# define PR_SET_MM_AUXV 12
+# define PR_SET_MM_EXE_FILE 13
/*
* Set specific pid that is allowed to ptrace the current task.
unsigned long val, bool force);
int __must_check res_counter_charge(struct res_counter *counter,
unsigned long val, struct res_counter **limit_fail_at);
-int __must_check res_counter_charge_nofail(struct res_counter *counter,
+int res_counter_charge_nofail(struct res_counter *counter,
unsigned long val, struct res_counter **limit_fail_at);
/*
void res_counter_uncharge_locked(struct res_counter *counter, unsigned long val);
void res_counter_uncharge(struct res_counter *counter, unsigned long val);
+void res_counter_uncharge_until(struct res_counter *counter,
+ struct res_counter *top,
+ unsigned long val);
/**
* res_counter_margin - calculate chargeable space of a counter
* @cnt: the counter
#include <linux/errno.h>
#include <linux/device.h>
#include <linux/rio_regs.h>
+#ifdef CONFIG_RAPIDIO_DMA_ENGINE
+#include <linux/dmaengine.h>
+#endif
#define RIO_NO_HOPCOUNT -1
#define RIO_INVALID_DESTID 0xffff
u32 phys_efptr;
unsigned char name[40];
void *priv; /* Master port private data */
+#ifdef CONFIG_RAPIDIO_DMA_ENGINE
+ struct dma_device dma;
+#endif
};
/**
u32 raw[RIO_PW_MSG_SIZE/sizeof(u32)];
};
+#ifdef CONFIG_RAPIDIO_DMA_ENGINE
+
+/**
+ * enum rio_write_type - RIO write transaction types used in DMA transfers
+ *
+ * Note: RapidIO specification defines write (NWRITE) and
+ * write-with-response (NWRITE_R) data transfer operations.
+ * Existing DMA controllers that service RapidIO may use one of these operations
+ * for entire data transfer or their combination with only the last data packet
+ * requires response.
+ */
+enum rio_write_type {
+ RDW_DEFAULT, /* default method used by DMA driver */
+ RDW_ALL_NWRITE, /* all packets use NWRITE */
+ RDW_ALL_NWRITE_R, /* all packets use NWRITE_R */
+ RDW_LAST_NWRITE_R, /* last packet uses NWRITE_R, others - NWRITE */
+};
+
+struct rio_dma_ext {
+ u16 destid;
+ u64 rio_addr; /* low 64-bits of 66-bit RapidIO address */
+ u8 rio_addr_u; /* upper 2-bits of 66-bit RapidIO address */
+ enum rio_write_type wr_type; /* preferred RIO write operation type */
+};
+
+struct rio_dma_data {
+ /* Local data (as scatterlist) */
+ struct scatterlist *sg; /* I/O scatter list */
+ unsigned int sg_len; /* size of scatter list */
+ /* Remote device address (flat buffer) */
+ u64 rio_addr; /* low 64-bits of 66-bit RapidIO address */
+ u8 rio_addr_u; /* upper 2-bits of 66-bit RapidIO address */
+ enum rio_write_type wr_type; /* preferred RIO write operation type */
+};
+
+static inline struct rio_mport *dma_to_mport(struct dma_device *ddev)
+{
+ return container_of(ddev, struct rio_mport, dma);
+}
+#endif /* CONFIG_RAPIDIO_DMA_ENGINE */
+
/* Architecture and hardware-specific functions */
extern int rio_register_mport(struct rio_mport *);
extern int rio_open_inb_mbox(struct rio_mport *, void *, int, int);
struct rio_dev *rio_dev_get(struct rio_dev *);
void rio_dev_put(struct rio_dev *);
+#ifdef CONFIG_RAPIDIO_DMA_ENGINE
+extern struct dma_chan *rio_request_dma(struct rio_dev *rdev);
+extern void rio_release_dma(struct dma_chan *dchan);
+extern struct dma_async_tx_descriptor *rio_dma_prep_slave_sg(
+ struct rio_dev *rdev, struct dma_chan *dchan,
+ struct rio_dma_data *data,
+ enum dma_transfer_direction direction, unsigned long flags);
+#endif
+
/**
* rio_name - Get the unique RIO device identifier
* @rdev: RIO device
};
#define TTU_ACTION(x) ((x) & TTU_ACTION_MASK)
-bool is_vma_temporary_stack(struct vm_area_struct *vma);
-
int try_to_unmap(struct page *, enum ttu_flags flags);
int try_to_unmap_one(struct page *, struct vm_area_struct *,
unsigned long address, enum ttu_flags flags);
#define RTC_PLL_GET _IOR('p', 0x11, struct rtc_pll_info) /* Get PLL correction */
#define RTC_PLL_SET _IOW('p', 0x12, struct rtc_pll_info) /* Set PLL correction */
+#define RTC_VL_READ _IOR('p', 0x13, int) /* Voltage low detector */
+#define RTC_VL_CLR _IO('p', 0x14) /* Clear voltage low information */
+
/* interrupt flags */
#define RTC_IRQF 0x80 /* Any of the following is active */
#define RTC_PF 0x40 /* Periodic interrupt */
--- /dev/null
+/*
+ * ds1307.h - platform_data for the ds1307 (and variants) rtc driver
+ * (C) Copyright 2012 by Wolfram Sang, Pengutronix e.K.
+ * same license as the driver
+ */
+
+#ifndef _LINUX_DS1307_H
+#define _LINUX_DS1307_H
+
+#include <linux/types.h>
+
+#define DS1307_TRICKLE_CHARGER_250_OHM 0x01
+#define DS1307_TRICKLE_CHARGER_2K_OHM 0x02
+#define DS1307_TRICKLE_CHARGER_4K_OHM 0x03
+#define DS1307_TRICKLE_CHARGER_NO_DIODE 0x04
+#define DS1307_TRICKLE_CHARGER_DIODE 0x08
+
+struct ds1307_platform_data {
+ u8 trickle_charger_setup;
+};
+
+#endif /* _LINUX_DS1307_H */
unsigned sched_reset_on_fork:1;
unsigned sched_contributes_to_load:1;
-#ifdef CONFIG_GENERIC_HARDIRQS
- /* IRQ handler threads */
- unsigned irq_thread:1;
-#endif
-
pid_t pid;
pid_t tgid;
/* Canary value for the -fstack-protector gcc feature */
unsigned long stack_canary;
#endif
-
- /*
+ /*
* pointers to (original) parent process, youngest child, younger sibling,
- * older sibling, respectively. (p->father can be replaced with
+ * older sibling, respectively. (p->father can be replaced with
* p->real_parent->pid)
*/
struct task_struct __rcu *real_parent; /* real parent process */
* credentials (COW) */
const struct cred __rcu *cred; /* effective (overridable) subjective task
* credentials (COW) */
- struct cred *replacement_session_keyring; /* for KEYCTL_SESSION_TO_PARENT */
-
char comm[TASK_COMM_LEN]; /* executable name excluding path
- access with [gs]et_task_comm (which lock
it with task_lock())
int (*notifier)(void *priv);
void *notifier_data;
sigset_t *notifier_mask;
+ struct hlist_head task_works;
+
struct audit_context *audit_context;
#ifdef CONFIG_AUDITSYSCALL
uid_t loginuid;
extern int do_sigaction(int, struct k_sigaction *, struct k_sigaction *);
extern int do_sigaltstack(const stack_t __user *, stack_t __user *, unsigned long);
+static inline void restore_saved_sigmask(void)
+{
+ if (test_and_clear_restore_sigmask())
+ __set_current_blocked(¤t->saved_sigmask);
+}
+
+static inline sigset_t *sigmask_to_save(void)
+{
+ sigset_t *res = ¤t->blocked;
+ if (unlikely(test_restore_sigmask()))
+ res = ¤t->saved_sigmask;
+ return res;
+}
+
static inline int kill_cad_pid(int sig, int priv)
{
return kill_pid(cad_pid, sig, priv);
extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
extern int cap_inode_need_killpriv(struct dentry *dentry);
extern int cap_inode_killpriv(struct dentry *dentry);
-extern int cap_file_mmap(struct file *file, unsigned long reqprot,
- unsigned long prot, unsigned long flags,
- unsigned long addr, unsigned long addr_only);
+extern int cap_mmap_addr(unsigned long addr);
+extern int cap_mmap_file(struct file *file, unsigned long reqprot,
+ unsigned long prot, unsigned long flags);
extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
unsigned long arg4, unsigned long arg5);
* simple integer value. When @arg represents a user space pointer, it
* should never be used by the security module.
* Return 0 if permission is granted.
- * @file_mmap :
+ * @mmap_addr :
+ * Check permissions for a mmap operation at @addr.
+ * @addr contains virtual address that will be used for the operation.
+ * Return 0 if permission is granted.
+ * @mmap_file :
* Check permissions for a mmap operation. The @file may be NULL, e.g.
* if mapping anonymous memory.
* @file contains the file structure for file to map (may be NULL).
* @reqprot contains the protection requested by the application.
* @prot contains the protection that will be applied by the kernel.
* @flags contains the operational flags.
- * @addr contains virtual address that will be used for the operation.
- * @addr_only contains a boolean: 0 if file-backed VMA, otherwise 1.
* Return 0 if permission is granted.
* @file_mprotect:
* Check permissions before changing memory access permissions.
void (*file_free_security) (struct file *file);
int (*file_ioctl) (struct file *file, unsigned int cmd,
unsigned long arg);
- int (*file_mmap) (struct file *file,
+ int (*mmap_addr) (unsigned long addr);
+ int (*mmap_file) (struct file *file,
unsigned long reqprot, unsigned long prot,
- unsigned long flags, unsigned long addr,
- unsigned long addr_only);
+ unsigned long flags);
int (*file_mprotect) (struct vm_area_struct *vma,
unsigned long reqprot,
unsigned long prot);
int security_file_alloc(struct file *file);
void security_file_free(struct file *file);
int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
-int security_file_mmap(struct file *file, unsigned long reqprot,
- unsigned long prot, unsigned long flags,
- unsigned long addr, unsigned long addr_only);
+int security_mmap_file(struct file *file, unsigned long prot,
+ unsigned long flags);
+int security_mmap_addr(unsigned long addr);
int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
unsigned long prot);
int security_file_lock(struct file *file, unsigned int cmd);
return 0;
}
-static inline int security_file_mmap(struct file *file, unsigned long reqprot,
- unsigned long prot,
- unsigned long flags,
- unsigned long addr,
- unsigned long addr_only)
+static inline int security_mmap_file(struct file *file, unsigned long prot,
+ unsigned long flags)
+{
+ return 0;
+}
+
+static inline int security_mmap_addr(unsigned long addr)
{
- return cap_file_mmap(file, reqprot, prot, flags, addr, addr_only);
+ return cap_mmap_addr(addr);
}
static inline int security_file_mprotect(struct vm_area_struct *vma,
extern int do_sigtimedwait(const sigset_t *, siginfo_t *,
const struct timespec *);
extern int sigprocmask(int, sigset_t *, sigset_t *);
-extern void set_current_blocked(const sigset_t *);
+extern void set_current_blocked(sigset_t *);
+extern void __set_current_blocked(const sigset_t *);
extern int show_unhandled_signals;
extern int sigsuspend(sigset_t *);
extern int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka, struct pt_regs *regs, void *cookie);
-extern void block_sigmask(struct k_sigaction *ka, int signr);
+extern void signal_delivered(int sig, siginfo_t *info, struct k_sigaction *ka, struct pt_regs *regs, int stepping);
extern void exit_signals(struct task_struct *tsk);
extern struct kmem_cache *sighand_cachep;
{
int delta = 0;
- if (headroom < NET_SKB_PAD)
- headroom = NET_SKB_PAD;
if (headroom > skb_headroom(skb))
delta = headroom - skb_headroom(skb);
*/
static inline void *kmalloc_array(size_t n, size_t size, gfp_t flags)
{
- if (size != 0 && n > ULONG_MAX / size)
+ if (size != 0 && n > SIZE_MAX / size)
return NULL;
return __kmalloc(n * size, flags);
}
struct svc_pool * rq_pool; /* thread pool */
struct svc_procedure * rq_procinfo; /* procedure info */
struct auth_ops * rq_authop; /* authentication flavour */
- u32 rq_flavor; /* pseudoflavor */
struct svc_cred rq_cred; /* auth info */
void * rq_xprt_ctxt; /* transport specific context ptr */
struct svc_deferred_req*rq_deferred; /* deferred request we are replaying */
*/
int svc_rpcb_setup(struct svc_serv *serv, struct net *net);
void svc_rpcb_cleanup(struct svc_serv *serv, struct net *net);
+int svc_bind(struct svc_serv *serv, struct net *net);
struct svc_serv *svc_create(struct svc_program *, unsigned int,
void (*shutdown)(struct svc_serv *, struct net *net));
struct svc_rqst *svc_prepare_thread(struct svc_serv *serv,
#include <linux/sunrpc/msg_prot.h>
#include <linux/sunrpc/cache.h>
#include <linux/hash.h>
+#include <linux/cred.h>
-#define SVC_CRED_NGROUPS 32
struct svc_cred {
uid_t cr_uid;
gid_t cr_gid;
struct group_info *cr_group_info;
+ u32 cr_flavor; /* pseudoflavor */
+ char *cr_principal; /* for gss */
};
+static inline void free_svc_cred(struct svc_cred *cred)
+{
+ if (cred->cr_group_info)
+ put_group_info(cred->cr_group_info);
+ kfree(cred->cr_principal);
+}
+
struct svc_rqst; /* forward decl */
struct in6_addr;
extern struct auth_domain *auth_domain_find(char *name);
extern struct auth_domain *auth_unix_lookup(struct net *net, struct in6_addr *addr);
extern int auth_unix_forget_old(struct auth_domain *dom);
-extern void svcauth_unix_purge(void);
+extern void svcauth_unix_purge(struct net *net);
extern void svcauth_unix_info_release(struct svc_xprt *xpt);
extern int svcauth_unix_set_client(struct svc_rqst *rqstp);
void gss_svc_shutdown_net(struct net *net);
int svcauth_gss_register_pseudoflavor(u32 pseudoflavor, char * name);
u32 svcauth_gss_flavor(struct auth_domain *dom);
-char *svc_gss_principal(struct svc_rqst *);
#endif /* __KERNEL__ */
#endif /* _LINUX_SUNRPC_SVCAUTH_GSS_H */
/* linux/mm/swap.c */
extern void __lru_cache_add(struct page *, enum lru_list lru);
extern void lru_cache_add_lru(struct page *, enum lru_list lru);
-extern void lru_add_page_tail(struct zone* zone,
- struct page *page, struct page *page_tail);
+extern void lru_add_page_tail(struct page *page, struct page *page_tail,
+ struct lruvec *lruvec);
extern void activate_page(struct page *);
extern void mark_page_accessed(struct page *);
extern void lru_add_drain(void);
/* linux/mm/vmscan.c */
extern unsigned long try_to_free_pages(struct zonelist *zonelist, int order,
gfp_t gfp_mask, nodemask_t *mask);
-extern int __isolate_lru_page(struct page *page, isolate_mode_t mode, int file);
+extern int __isolate_lru_page(struct page *page, isolate_mode_t mode);
extern unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem,
gfp_t gfp_mask, bool noswap);
extern unsigned long mem_cgroup_shrink_node_zone(struct mem_cgroup *mem,
extern unsigned int count_swap_pages(int, int);
extern sector_t map_swap_page(struct page *, struct block_device **);
extern sector_t swapdev_block(int, pgoff_t);
+extern int page_swapcount(struct page *);
extern int reuse_swap_page(struct page *);
extern int try_to_free_swap(struct page *);
struct backing_dev_info;
-/* linux/mm/thrash.c */
-extern struct mm_struct *swap_token_mm;
-extern void grab_swap_token(struct mm_struct *);
-extern void __put_swap_token(struct mm_struct *);
-extern void disable_swap_token(struct mem_cgroup *memcg);
-
-static inline int has_swap_token(struct mm_struct *mm)
-{
- return (mm == swap_token_mm);
-}
-
-static inline void put_swap_token(struct mm_struct *mm)
-{
- if (has_swap_token(mm))
- __put_swap_token(mm);
-}
-
#ifdef CONFIG_CGROUP_MEM_RES_CTLR
extern void
mem_cgroup_uncharge_swapcache(struct page *page, swp_entry_t ent, bool swapout);
-extern int mem_cgroup_count_swap_user(swp_entry_t ent, struct page **pagep);
#else
static inline void
mem_cgroup_uncharge_swapcache(struct page *page, swp_entry_t ent, bool swapout)
{
}
+static inline int page_swapcount(struct page *page)
+{
+ return 0;
+}
+
#define reuse_swap_page(page) (page_mapcount(page) == 1)
static inline int try_to_free_swap(struct page *page)
return entry;
}
-/* linux/mm/thrash.c */
-static inline void put_swap_token(struct mm_struct *mm)
-{
-}
-
-static inline void grab_swap_token(struct mm_struct *mm)
-{
-}
-
-static inline int has_swap_token(struct mm_struct *mm)
-{
- return 0;
-}
-
-static inline void disable_swap_token(struct mem_cgroup *memcg)
-{
-}
-
static inline void
mem_cgroup_uncharge_swapcache(struct page *page, swp_entry_t ent)
{
}
-#ifdef CONFIG_CGROUP_MEM_RES_CTLR
-static inline int
-mem_cgroup_count_swap_user(swp_entry_t ent, struct page **pagep)
-{
- return 0;
-}
-#endif
-
#endif /* CONFIG_SWAP */
#endif /* __KERNEL__*/
#endif /* _LINUX_SWAP_H */
unsigned long riovcnt,
unsigned long flags);
+asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
+ unsigned long idx1, unsigned long idx2);
#endif
--- /dev/null
+#ifndef _LINUX_TASK_WORK_H
+#define _LINUX_TASK_WORK_H
+
+#include <linux/list.h>
+#include <linux/sched.h>
+
+struct task_work;
+typedef void (*task_work_func_t)(struct task_work *);
+
+struct task_work {
+ struct hlist_node hlist;
+ task_work_func_t func;
+ void *data;
+};
+
+static inline void
+init_task_work(struct task_work *twork, task_work_func_t func, void *data)
+{
+ twork->func = func;
+ twork->data = data;
+}
+
+int task_work_add(struct task_struct *task, struct task_work *twork, bool);
+struct task_work *task_work_cancel(struct task_struct *, task_work_func_t);
+void task_work_run(void);
+
+static inline void exit_task_work(struct task_struct *task)
+{
+ if (unlikely(!hlist_empty(&task->task_works)))
+ task_work_run();
+}
+
+#endif /* _LINUX_TASK_WORK_H */
#define _LINUX_THREAD_INFO_H
#include <linux/types.h>
+#include <linux/bug.h>
struct timespec;
struct compat_timespec;
static inline void set_restore_sigmask(void)
{
set_thread_flag(TIF_RESTORE_SIGMASK);
- set_thread_flag(TIF_SIGPENDING);
+ WARN_ON(!test_thread_flag(TIF_SIGPENDING));
+}
+static inline void clear_restore_sigmask(void)
+{
+ clear_thread_flag(TIF_RESTORE_SIGMASK);
+}
+static inline bool test_restore_sigmask(void)
+{
+ return test_thread_flag(TIF_RESTORE_SIGMASK);
+}
+static inline bool test_and_clear_restore_sigmask(void)
+{
+ return test_and_clear_thread_flag(TIF_RESTORE_SIGMASK);
}
#endif /* TIF_RESTORE_SIGMASK && !HAVE_SET_RESTORE_SIGMASK */
+#ifndef HAVE_SET_RESTORE_SIGMASK
+#error "no set_restore_sigmask() provided and default one won't work"
+#endif
+
#endif /* __KERNEL__ */
#endif /* _LINUX_THREAD_INFO_H */
#include <linux/sched.h>
#include <linux/ptrace.h>
#include <linux/security.h>
+#include <linux/task_work.h>
struct linux_binprm;
/*
ptrace_notify(SIGTRAP);
}
-#ifdef TIF_NOTIFY_RESUME
/**
* set_notify_resume - cause tracehook_notify_resume() to be called
* @task: task that will call tracehook_notify_resume()
*/
static inline void set_notify_resume(struct task_struct *task)
{
+#ifdef TIF_NOTIFY_RESUME
if (!test_and_set_tsk_thread_flag(task, TIF_NOTIFY_RESUME))
kick_process(task);
+#endif
}
/**
*/
static inline void tracehook_notify_resume(struct pt_regs *regs)
{
+ /*
+ * The caller just cleared TIF_NOTIFY_RESUME. This barrier
+ * pairs with task_work_add()->set_notify_resume() after
+ * hlist_add_head(task->task_works);
+ */
+ smp_mb__after_clear_bit();
+ if (unlikely(!hlist_empty(¤t->task_works)))
+ task_work_run();
}
-#endif /* TIF_NOTIFY_RESUME */
#endif /* <linux/tracehook.h> */
typedef __kernel_ino_t ino_t;
typedef __kernel_mode_t mode_t;
typedef unsigned short umode_t;
-typedef __kernel_nlink_t nlink_t;
+typedef __u32 nlink_t;
typedef __kernel_off_t off_t;
typedef __kernel_pid_t pid_t;
typedef __kernel_daddr_t daddr_t;
#define WDIOF_SETTIMEOUT 0x0080 /* Set timeout (in seconds) */
#define WDIOF_MAGICCLOSE 0x0100 /* Supports magic close char */
#define WDIOF_PRETIMEOUT 0x0200 /* Pretimeout (in seconds), get/set */
+#define WDIOF_ALARMONLY 0x0400 /* Watchdog triggers a management or
+ other external alarm not a reboot */
#define WDIOF_KEEPALIVEPING 0x8000 /* Keep alive ping reply */
#define WDIOS_DISABLECARD 0x0001 /* Turn off the watchdog timer */
#ifdef __KERNEL__
#include <linux/bitops.h>
+#include <linux/device.h>
+#include <linux/cdev.h>
struct watchdog_ops;
struct watchdog_device;
* @status: The routine that shows the status of the watchdog device.
* @set_timeout:The routine for setting the watchdog devices timeout value.
* @get_timeleft:The routine that get's the time that's left before a reset.
+ * @ref: The ref operation for dyn. allocated watchdog_device structs
+ * @unref: The unref operation for dyn. allocated watchdog_device structs
* @ioctl: The routines that handles extra ioctl calls.
*
* The watchdog_ops structure contains a list of low-level operations
unsigned int (*status)(struct watchdog_device *);
int (*set_timeout)(struct watchdog_device *, unsigned int);
unsigned int (*get_timeleft)(struct watchdog_device *);
+ void (*ref)(struct watchdog_device *);
+ void (*unref)(struct watchdog_device *);
long (*ioctl)(struct watchdog_device *, unsigned int, unsigned long);
};
/** struct watchdog_device - The structure that defines a watchdog device
*
+ * @id: The watchdog's ID. (Allocated by watchdog_register_device)
+ * @cdev: The watchdog's Character device.
+ * @dev: The device for our watchdog
+ * @parent: The parent bus device
* @info: Pointer to a watchdog_info structure.
* @ops: Pointer to the list of watchdog operations.
* @bootstatus: Status of the watchdog device at boot.
* @min_timeout:The watchdog devices minimum timeout value.
* @max_timeout:The watchdog devices maximum timeout value.
* @driver-data:Pointer to the drivers private data.
+ * @lock: Lock for watchdog core internal use only.
* @status: Field that contains the devices internal status bits.
*
* The watchdog_device structure contains all information about a
*
* The driver-data field may not be accessed directly. It must be accessed
* via the watchdog_set_drvdata and watchdog_get_drvdata helpers.
+ *
+ * The lock field is for watchdog core internal use only and should not be
+ * touched.
*/
struct watchdog_device {
+ int id;
+ struct cdev cdev;
+ struct device *dev;
+ struct device *parent;
const struct watchdog_info *info;
const struct watchdog_ops *ops;
unsigned int bootstatus;
unsigned int min_timeout;
unsigned int max_timeout;
void *driver_data;
+ struct mutex lock;
unsigned long status;
/* Bit numbers for status flags */
#define WDOG_ACTIVE 0 /* Is the watchdog running/active */
#define WDOG_DEV_OPEN 1 /* Opened via /dev/watchdog ? */
#define WDOG_ALLOW_RELEASE 2 /* Did we receive the magic char ? */
#define WDOG_NO_WAY_OUT 3 /* Is 'nowayout' feature set ? */
+#define WDOG_UNREGISTERED 4 /* Has the device been unregistered */
};
#ifdef CONFIG_WATCHDOG_NOWAYOUT
#define WATCHDOG_NOWAYOUT_INIT_STATUS 0
#endif
+/* Use the following function to check wether or not the watchdog is active */
+static inline bool watchdog_active(struct watchdog_device *wdd)
+{
+ return test_bit(WDOG_ACTIVE, &wdd->status);
+}
+
/* Use the following function to set the nowayout feature */
static inline void watchdog_set_nowayout(struct watchdog_device *wdd, bool nowayout)
{
#define DST_NOCOUNT 0x0020
#define DST_NOPEER 0x0040
#define DST_FAKE_RTABLE 0x0080
+#define DST_XFRM_TUNNEL 0x0100
short error;
short obsolete;
#include <linux/list_nulls.h>
#include <linux/timer.h>
#include <linux/cache.h>
+#include <linux/bitops.h>
#include <linux/lockdep.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h> /* struct sk_buff */
#endif
};
+/*
+ * Bits in struct cg_proto.flags
+ */
+enum cg_proto_flags {
+ /* Currently active and new sockets should be assigned to cgroups */
+ MEMCG_SOCK_ACTIVE,
+ /* It was ever activated; we must disarm static keys on destruction */
+ MEMCG_SOCK_ACTIVATED,
+};
+
struct cg_proto {
void (*enter_memory_pressure)(struct sock *sk);
struct res_counter *memory_allocated; /* Current allocated memory. */
struct percpu_counter *sockets_allocated; /* Current number of sockets. */
int *memory_pressure;
long *sysctl_mem;
+ unsigned long flags;
/*
* memcg field is used to find which memcg we belong directly
* Each memcg struct can hold more than one cg_proto, so container_of
extern int proto_register(struct proto *prot, int alloc_slab);
extern void proto_unregister(struct proto *prot);
+static inline bool memcg_proto_active(struct cg_proto *cg_proto)
+{
+ return test_bit(MEMCG_SOCK_ACTIVE, &cg_proto->flags);
+}
+
+static inline bool memcg_proto_activated(struct cg_proto *cg_proto)
+{
+ return test_bit(MEMCG_SOCK_ACTIVATED, &cg_proto->flags);
+}
+
#ifdef SOCK_REFCNT_DEBUG
static inline void sk_refcnt_debug_inc(struct sock *sk)
{
--- /dev/null
+/*
+ * Copyright (c) 2011-2012 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Maintained at www.Open-FCoE.org
+ */
+
+#ifndef FCOE_SYSFS
+#define FCOE_SYSFS
+
+#include <linux/if_ether.h>
+#include <linux/device.h>
+#include <scsi/fc/fc_fcoe.h>
+
+struct fcoe_ctlr_device;
+struct fcoe_fcf_device;
+
+struct fcoe_sysfs_function_template {
+ void (*get_fcoe_ctlr_link_fail)(struct fcoe_ctlr_device *);
+ void (*get_fcoe_ctlr_vlink_fail)(struct fcoe_ctlr_device *);
+ void (*get_fcoe_ctlr_miss_fka)(struct fcoe_ctlr_device *);
+ void (*get_fcoe_ctlr_symb_err)(struct fcoe_ctlr_device *);
+ void (*get_fcoe_ctlr_err_block)(struct fcoe_ctlr_device *);
+ void (*get_fcoe_ctlr_fcs_error)(struct fcoe_ctlr_device *);
+ void (*get_fcoe_ctlr_mode)(struct fcoe_ctlr_device *);
+ void (*get_fcoe_fcf_selected)(struct fcoe_fcf_device *);
+ void (*get_fcoe_fcf_vlan_id)(struct fcoe_fcf_device *);
+};
+
+#define dev_to_ctlr(d) \
+ container_of((d), struct fcoe_ctlr_device, dev)
+
+enum fip_conn_type {
+ FIP_CONN_TYPE_UNKNOWN,
+ FIP_CONN_TYPE_FABRIC,
+ FIP_CONN_TYPE_VN2VN,
+};
+
+struct fcoe_ctlr_device {
+ u32 id;
+
+ struct device dev;
+ struct fcoe_sysfs_function_template *f;
+
+ struct list_head fcfs;
+ char work_q_name[20];
+ struct workqueue_struct *work_q;
+ char devloss_work_q_name[20];
+ struct workqueue_struct *devloss_work_q;
+ struct mutex lock;
+
+ int fcf_dev_loss_tmo;
+ enum fip_conn_type mode;
+
+ /* expected in host order for displaying */
+ struct fcoe_fc_els_lesb lesb;
+};
+
+static inline void *fcoe_ctlr_device_priv(const struct fcoe_ctlr_device *ctlr)
+{
+ return (void *)(ctlr + 1);
+}
+
+/* fcf states */
+enum fcf_state {
+ FCOE_FCF_STATE_UNKNOWN,
+ FCOE_FCF_STATE_DISCONNECTED,
+ FCOE_FCF_STATE_CONNECTED,
+ FCOE_FCF_STATE_DELETED,
+};
+
+struct fcoe_fcf_device {
+ u32 id;
+ struct device dev;
+ struct list_head peers;
+ struct work_struct delete_work;
+ struct delayed_work dev_loss_work;
+ u32 dev_loss_tmo;
+ void *priv;
+ enum fcf_state state;
+
+ u64 fabric_name;
+ u64 switch_name;
+ u32 fc_map;
+ u16 vfid;
+ u8 mac[ETH_ALEN];
+ u8 priority;
+ u32 fka_period;
+ u8 selected;
+ u16 vlan_id;
+};
+
+#define dev_to_fcf(d) \
+ container_of((d), struct fcoe_fcf_device, dev)
+/* parentage should never be missing */
+#define fcoe_fcf_dev_to_ctlr_dev(x) \
+ dev_to_ctlr((x)->dev.parent)
+#define fcoe_fcf_device_priv(x) \
+ ((x)->priv)
+
+struct fcoe_ctlr_device *fcoe_ctlr_device_add(struct device *parent,
+ struct fcoe_sysfs_function_template *f,
+ int priv_size);
+void fcoe_ctlr_device_delete(struct fcoe_ctlr_device *);
+struct fcoe_fcf_device *fcoe_fcf_device_add(struct fcoe_ctlr_device *,
+ struct fcoe_fcf_device *);
+void fcoe_fcf_device_delete(struct fcoe_fcf_device *);
+
+int __init fcoe_sysfs_setup(void);
+void __exit fcoe_sysfs_teardown(void);
+
+#endif /* FCOE_SYSFS */
#include <linux/random.h>
#include <scsi/fc/fc_fcoe.h>
#include <scsi/libfc.h>
+#include <scsi/fcoe_sysfs.h>
#define FCOE_MAX_CMD_LEN 16 /* Supported CDB length */
spinlock_t ctlr_lock;
};
+/**
+ * fcoe_ctlr_priv() - Return the private data from a fcoe_ctlr
+ * @cltr: The fcoe_ctlr whose private data will be returned
+ */
+static inline void *fcoe_ctlr_priv(const struct fcoe_ctlr *ctlr)
+{
+ return (void *)(ctlr + 1);
+}
+
+#define fcoe_ctlr_to_ctlr_dev(x) \
+ (struct fcoe_ctlr_device *)(((struct fcoe_ctlr_device *)(x)) - 1)
+
/**
* struct fcoe_fcf - Fibre-Channel Forwarder
* @list: list linkage
+ * @event_work: Work for FC Transport actions queue
+ * @event: The event to be processed
+ * @fip: The controller that the FCF was discovered on
+ * @fcf_dev: The associated fcoe_fcf_device instance
* @time: system time (jiffies) when an advertisement was last received
* @switch_name: WWN of switch from advertisement
* @fabric_name: WWN of fabric from advertisement
*/
struct fcoe_fcf {
struct list_head list;
+ struct work_struct event_work;
+ struct fcoe_ctlr *fip;
+ struct fcoe_fcf_device *fcf_dev;
unsigned long time;
u64 switch_name;
u8 fd_flags:1;
};
+#define fcoe_fcf_to_fcf_dev(x) \
+ ((x)->fcf_dev)
+
/**
* struct fcoe_rport - VN2VN remote port
* @time: time of create or last beacon packet received from node
int fcoe_get_paged_crc_eof(struct sk_buff *skb, int tlen,
struct fcoe_percpu_s *fps);
+/* FCoE Sysfs helpers */
+void fcoe_fcf_get_selected(struct fcoe_fcf_device *);
+void fcoe_ctlr_get_fip_mode(struct fcoe_ctlr_device *);
+
/**
* struct netdev_list
* A mapping from netdevice to fcoe_transport
#define RECLAIM_WB_ANON 0x0001u
#define RECLAIM_WB_FILE 0x0002u
#define RECLAIM_WB_MIXED 0x0010u
-#define RECLAIM_WB_SYNC 0x0004u
+#define RECLAIM_WB_SYNC 0x0004u /* Unused, all reclaim async */
#define RECLAIM_WB_ASYNC 0x0008u
#define show_reclaim_flags(flags) \
{RECLAIM_WB_ASYNC, "RECLAIM_WB_ASYNC"} \
) : "RECLAIM_WB_NONE"
-#define trace_reclaim_flags(page, sync) ( \
+#define trace_reclaim_flags(page) ( \
(page_is_file_cache(page) ? RECLAIM_WB_FILE : RECLAIM_WB_ANON) | \
- (sync & RECLAIM_MODE_SYNC ? RECLAIM_WB_SYNC : RECLAIM_WB_ASYNC) \
+ (RECLAIM_WB_ASYNC) \
)
-#define trace_shrink_flags(file, sync) ( \
- (sync & RECLAIM_MODE_SYNC ? RECLAIM_WB_MIXED : \
- (file ? RECLAIM_WB_FILE : RECLAIM_WB_ANON)) | \
- (sync & RECLAIM_MODE_SYNC ? RECLAIM_WB_SYNC : RECLAIM_WB_ASYNC) \
+#define trace_shrink_flags(file) \
+ ( \
+ (file ? RECLAIM_WB_FILE : RECLAIM_WB_ANON) | \
+ (RECLAIM_WB_ASYNC) \
)
TRACE_EVENT(mm_vmscan_kswapd_sleep,
unsigned long nr_requested,
unsigned long nr_scanned,
unsigned long nr_taken,
- unsigned long nr_lumpy_taken,
- unsigned long nr_lumpy_dirty,
- unsigned long nr_lumpy_failed,
isolate_mode_t isolate_mode,
int file),
- TP_ARGS(order, nr_requested, nr_scanned, nr_taken, nr_lumpy_taken, nr_lumpy_dirty, nr_lumpy_failed, isolate_mode, file),
+ TP_ARGS(order, nr_requested, nr_scanned, nr_taken, isolate_mode, file),
TP_STRUCT__entry(
__field(int, order)
__field(unsigned long, nr_requested)
__field(unsigned long, nr_scanned)
__field(unsigned long, nr_taken)
- __field(unsigned long, nr_lumpy_taken)
- __field(unsigned long, nr_lumpy_dirty)
- __field(unsigned long, nr_lumpy_failed)
__field(isolate_mode_t, isolate_mode)
__field(int, file)
),
__entry->nr_requested = nr_requested;
__entry->nr_scanned = nr_scanned;
__entry->nr_taken = nr_taken;
- __entry->nr_lumpy_taken = nr_lumpy_taken;
- __entry->nr_lumpy_dirty = nr_lumpy_dirty;
- __entry->nr_lumpy_failed = nr_lumpy_failed;
__entry->isolate_mode = isolate_mode;
__entry->file = file;
),
- TP_printk("isolate_mode=%d order=%d nr_requested=%lu nr_scanned=%lu nr_taken=%lu contig_taken=%lu contig_dirty=%lu contig_failed=%lu file=%d",
+ TP_printk("isolate_mode=%d order=%d nr_requested=%lu nr_scanned=%lu nr_taken=%lu file=%d",
__entry->isolate_mode,
__entry->order,
__entry->nr_requested,
__entry->nr_scanned,
__entry->nr_taken,
- __entry->nr_lumpy_taken,
- __entry->nr_lumpy_dirty,
- __entry->nr_lumpy_failed,
__entry->file)
);
unsigned long nr_requested,
unsigned long nr_scanned,
unsigned long nr_taken,
- unsigned long nr_lumpy_taken,
- unsigned long nr_lumpy_dirty,
- unsigned long nr_lumpy_failed,
isolate_mode_t isolate_mode,
int file),
- TP_ARGS(order, nr_requested, nr_scanned, nr_taken, nr_lumpy_taken, nr_lumpy_dirty, nr_lumpy_failed, isolate_mode, file)
+ TP_ARGS(order, nr_requested, nr_scanned, nr_taken, isolate_mode, file)
);
unsigned long nr_requested,
unsigned long nr_scanned,
unsigned long nr_taken,
- unsigned long nr_lumpy_taken,
- unsigned long nr_lumpy_dirty,
- unsigned long nr_lumpy_failed,
isolate_mode_t isolate_mode,
int file),
- TP_ARGS(order, nr_requested, nr_scanned, nr_taken, nr_lumpy_taken, nr_lumpy_dirty, nr_lumpy_failed, isolate_mode, file)
+ TP_ARGS(order, nr_requested, nr_scanned, nr_taken, isolate_mode, file)
);
show_reclaim_flags(__entry->reclaim_flags))
);
-TRACE_EVENT(replace_swap_token,
- TP_PROTO(struct mm_struct *old_mm,
- struct mm_struct *new_mm),
-
- TP_ARGS(old_mm, new_mm),
-
- TP_STRUCT__entry(
- __field(struct mm_struct*, old_mm)
- __field(unsigned int, old_prio)
- __field(struct mm_struct*, new_mm)
- __field(unsigned int, new_prio)
- ),
-
- TP_fast_assign(
- __entry->old_mm = old_mm;
- __entry->old_prio = old_mm ? old_mm->token_priority : 0;
- __entry->new_mm = new_mm;
- __entry->new_prio = new_mm->token_priority;
- ),
-
- TP_printk("old_token_mm=%p old_prio=%u new_token_mm=%p new_prio=%u",
- __entry->old_mm, __entry->old_prio,
- __entry->new_mm, __entry->new_prio)
-);
-
-DECLARE_EVENT_CLASS(put_swap_token_template,
- TP_PROTO(struct mm_struct *swap_token_mm),
-
- TP_ARGS(swap_token_mm),
-
- TP_STRUCT__entry(
- __field(struct mm_struct*, swap_token_mm)
- ),
-
- TP_fast_assign(
- __entry->swap_token_mm = swap_token_mm;
- ),
-
- TP_printk("token_mm=%p", __entry->swap_token_mm)
-);
-
-DEFINE_EVENT(put_swap_token_template, put_swap_token,
- TP_PROTO(struct mm_struct *swap_token_mm),
- TP_ARGS(swap_token_mm)
-);
-
-DEFINE_EVENT_CONDITION(put_swap_token_template, disable_swap_token,
- TP_PROTO(struct mm_struct *swap_token_mm),
- TP_ARGS(swap_token_mm),
- TP_CONDITION(swap_token_mm != NULL)
-);
-
-TRACE_EVENT_CONDITION(update_swap_token_priority,
- TP_PROTO(struct mm_struct *mm,
- unsigned int old_prio,
- struct mm_struct *swap_token_mm),
-
- TP_ARGS(mm, old_prio, swap_token_mm),
-
- TP_CONDITION(mm->token_priority != old_prio),
-
- TP_STRUCT__entry(
- __field(struct mm_struct*, mm)
- __field(unsigned int, old_prio)
- __field(unsigned int, new_prio)
- __field(struct mm_struct*, swap_token_mm)
- __field(unsigned int, swap_token_prio)
- ),
-
- TP_fast_assign(
- __entry->mm = mm;
- __entry->old_prio = old_prio;
- __entry->new_prio = mm->token_priority;
- __entry->swap_token_mm = swap_token_mm;
- __entry->swap_token_prio = swap_token_mm ? swap_token_mm->token_priority : 0;
- ),
-
- TP_printk("mm=%p old_prio=%u new_prio=%u swap_token_mm=%p token_prio=%u",
- __entry->mm, __entry->old_prio, __entry->new_prio,
- __entry->swap_token_mm, __entry->swap_token_prio)
-);
-
#endif /* _TRACE_VMSCAN_H */
/* This part must be outside protection */
depends on HAVE_KERNEL_BZIP2
help
Its compression ratio and speed is intermediate.
- Decompression speed is slowest among the three. The kernel
+ Decompression speed is slowest among the choices. The kernel
size is about 10% smaller with bzip2, in comparison to gzip.
Bzip2 uses a large amount of memory. For modern kernels you
will need at least 8MB RAM or more for booting.
bool "LZMA"
depends on HAVE_KERNEL_LZMA
help
- The most recent compression algorithm.
- Its ratio is best, decompression speed is between the other
- two. Compression is slowest. The kernel size is about 33%
- smaller with LZMA in comparison to gzip.
+ This compression algorithm's ratio is best. Decompression speed
+ is between gzip and bzip2. Compression is slowest.
+ The kernel size is about 33% smaller with LZMA in comparison to gzip.
config KERNEL_XZ
bool "XZ"
bool "LZO"
depends on HAVE_KERNEL_LZO
help
- Its compression ratio is the poorest among the 4. The kernel
+ Its compression ratio is the poorest among the choices. The kernel
size is about 10% bigger than gzip; however its speed
(both compression and decompression) is the fastest.
endif #CGROUP_SCHED
config BLK_CGROUP
- tristate "Block IO controller"
+ bool "Block IO controller"
depends on BLOCK
default n
---help---
+/*
+ * Many of the syscalls used in this file expect some of the arguments
+ * to be __user pointers not __kernel pointers. To limit the sparse
+ * noise, turn off sparse checking for this file.
+ */
+#ifdef __CHECKER__
+#undef __CHECKER__
+#warning "Sparse checking disabled for this file"
+#endif
+
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/ctype.h>
if (err)
return err;
- sys_chdir((const char __user __force *)"/root");
+ sys_chdir("/root");
s = current->fs->pwd.dentry->d_sb;
ROOT_DEV = s->s_dev;
printk(KERN_INFO
out:
devtmpfs_mount("dev");
sys_mount(".", "/", NULL, MS_MOVE, NULL);
- sys_chroot((const char __user __force *)".");
+ sys_chroot(".");
}
+/*
+ * Many of the syscalls used in this file expect some of the arguments
+ * to be __user pointers not __kernel pointers. To limit the sparse
+ * noise, turn off sparse checking for this file.
+ */
+#ifdef __CHECKER__
+#undef __CHECKER__
+#warning "Sparse checking disabled for this file"
+#endif
+
#include <linux/unistd.h>
#include <linux/kernel.h>
#include <linux/fs.h>
+/*
+ * Many of the syscalls used in this file expect some of the arguments
+ * to be __user pointers not __kernel pointers. To limit the sparse
+ * noise, turn off sparse checking for this file.
+ */
+#ifdef __CHECKER__
+#undef __CHECKER__
+#warning "Sparse checking disabled for this file"
+#endif
+
#include <linux/delay.h>
#include <linux/raid/md_u.h>
#include <linux/raid/md_p.h>
wait_for_device_probe();
- fd = sys_open((const char __user __force *) "/dev/md0", 0, 0);
+ fd = sys_open("/dev/md0", 0, 0);
if (fd >= 0) {
sys_ioctl(fd, RAID_AUTORUN, raid_autopart);
sys_close(fd);
+/*
+ * Many of the syscalls used in this file expect some of the arguments
+ * to be __user pointers not __kernel pointers. To limit the sparse
+ * noise, turn off sparse checking for this file.
+ */
+#ifdef __CHECKER__
+#undef __CHECKER__
+#warning "Sparse checking disabled for this file"
+#endif
#include <linux/kernel.h>
#include <linux/fs.h>
char rotator[4] = { '|' , '/' , '-' , '\\' };
#endif
- out_fd = sys_open((const char __user __force *) "/dev/ram", O_RDWR, 0);
+ out_fd = sys_open("/dev/ram", O_RDWR, 0);
if (out_fd < 0)
goto out;
sys_close(out_fd);
out:
kfree(buf);
- sys_unlink((const char __user __force *) "/dev/ram");
+ sys_unlink("/dev/ram");
return res;
}
+/*
+ * Many of the syscalls used in this file expect some of the arguments
+ * to be __user pointers not __kernel pointers. To limit the sparse
+ * noise, turn off sparse checking for this file.
+ */
+#ifdef __CHECKER__
+#undef __CHECKER__
+#warning "Sparse checking disabled for this file"
+#endif
+
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/slab.h>
}
}
-static long __init do_utime(char __user *filename, time_t mtime)
+static long __init do_utime(char *filename, time_t mtime)
{
struct timespec t[2];
struct linux_dirent64 *dirp;
int num;
- fd = sys_open((const char __user __force *) "/", O_RDONLY, 0);
+ fd = sys_open("/", O_RDONLY, 0);
WARN_ON(fd < 0);
if (fd < 0)
return;
}
printk(KERN_INFO "rootfs image is not initramfs (%s)"
"; looks like an initrd\n", err);
- fd = sys_open((const char __user __force *) "/initrd.image",
+ fd = sys_open("/initrd.image",
O_WRONLY|O_CREAT, 0700);
if (fd >= 0) {
sys_write(fd, (char *)initrd_start,
#include <linux/ipc_namespace.h>
#include <linux/sysctl.h>
-/*
- * Define the ranges various user-specified maximum values can
- * be set to.
- */
-#define MIN_MSGMAX 1 /* min value for msg_max */
-#define MAX_MSGMAX HARD_MSGMAX /* max value for msg_max */
-#define MIN_MSGSIZEMAX 128 /* min value for msgsize_max */
-#define MAX_MSGSIZEMAX (8192*128) /* max value for msgsize_max */
-
#ifdef CONFIG_PROC_SYSCTL
static void *get_mq(ctl_table *table)
{
return which;
}
-static int proc_mq_dointvec(ctl_table *table, int write,
- void __user *buffer, size_t *lenp, loff_t *ppos)
-{
- struct ctl_table mq_table;
- memcpy(&mq_table, table, sizeof(mq_table));
- mq_table.data = get_mq(table);
-
- return proc_dointvec(&mq_table, write, buffer, lenp, ppos);
-}
-
static int proc_mq_dointvec_minmax(ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
lenp, ppos);
}
#else
-#define proc_mq_dointvec NULL
#define proc_mq_dointvec_minmax NULL
#endif
+static int msg_queues_limit_min = MIN_QUEUESMAX;
+static int msg_queues_limit_max = HARD_QUEUESMAX;
+
static int msg_max_limit_min = MIN_MSGMAX;
-static int msg_max_limit_max = MAX_MSGMAX;
+static int msg_max_limit_max = HARD_MSGMAX;
static int msg_maxsize_limit_min = MIN_MSGSIZEMAX;
-static int msg_maxsize_limit_max = MAX_MSGSIZEMAX;
+static int msg_maxsize_limit_max = HARD_MSGSIZEMAX;
static ctl_table mq_sysctls[] = {
{
.data = &init_ipc_ns.mq_queues_max,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = proc_mq_dointvec,
+ .proc_handler = proc_mq_dointvec_minmax,
+ .extra1 = &msg_queues_limit_min,
+ .extra2 = &msg_queues_limit_max,
},
{
.procname = "msg_max",
.extra1 = &msg_maxsize_limit_min,
.extra2 = &msg_maxsize_limit_max,
},
+ {
+ .procname = "msg_default",
+ .data = &init_ipc_ns.mq_msg_default,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_mq_dointvec_minmax,
+ .extra1 = &msg_max_limit_min,
+ .extra2 = &msg_max_limit_max,
+ },
+ {
+ .procname = "msgsize_default",
+ .data = &init_ipc_ns.mq_msgsize_default,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_mq_dointvec_minmax,
+ .extra1 = &msg_maxsize_limit_min,
+ .extra2 = &msg_maxsize_limit_max,
+ },
{}
};
#include <linux/mqueue.h>
#include <linux/msg.h>
#include <linux/skbuff.h>
+#include <linux/vmalloc.h>
#include <linux/netlink.h>
#include <linux/syscalls.h>
#include <linux/audit.h>
#define STATE_PENDING 1
#define STATE_READY 2
+struct posix_msg_tree_node {
+ struct rb_node rb_node;
+ struct list_head msg_list;
+ int priority;
+};
+
struct ext_wait_queue { /* queue of sleeping tasks */
struct task_struct *task;
struct list_head list;
struct inode vfs_inode;
wait_queue_head_t wait_q;
- struct msg_msg **messages;
+ struct rb_root msg_tree;
+ struct posix_msg_tree_node *node_cache;
struct mq_attr attr;
struct sigevent notify;
return ns;
}
+/* Auxiliary functions to manipulate messages' list */
+static int msg_insert(struct msg_msg *msg, struct mqueue_inode_info *info)
+{
+ struct rb_node **p, *parent = NULL;
+ struct posix_msg_tree_node *leaf;
+
+ p = &info->msg_tree.rb_node;
+ while (*p) {
+ parent = *p;
+ leaf = rb_entry(parent, struct posix_msg_tree_node, rb_node);
+
+ if (likely(leaf->priority == msg->m_type))
+ goto insert_msg;
+ else if (msg->m_type < leaf->priority)
+ p = &(*p)->rb_left;
+ else
+ p = &(*p)->rb_right;
+ }
+ if (info->node_cache) {
+ leaf = info->node_cache;
+ info->node_cache = NULL;
+ } else {
+ leaf = kmalloc(sizeof(*leaf), GFP_ATOMIC);
+ if (!leaf)
+ return -ENOMEM;
+ rb_init_node(&leaf->rb_node);
+ INIT_LIST_HEAD(&leaf->msg_list);
+ info->qsize += sizeof(*leaf);
+ }
+ leaf->priority = msg->m_type;
+ rb_link_node(&leaf->rb_node, parent, p);
+ rb_insert_color(&leaf->rb_node, &info->msg_tree);
+insert_msg:
+ info->attr.mq_curmsgs++;
+ info->qsize += msg->m_ts;
+ list_add_tail(&msg->m_list, &leaf->msg_list);
+ return 0;
+}
+
+static inline struct msg_msg *msg_get(struct mqueue_inode_info *info)
+{
+ struct rb_node **p, *parent = NULL;
+ struct posix_msg_tree_node *leaf;
+ struct msg_msg *msg;
+
+try_again:
+ p = &info->msg_tree.rb_node;
+ while (*p) {
+ parent = *p;
+ /*
+ * During insert, low priorities go to the left and high to the
+ * right. On receive, we want the highest priorities first, so
+ * walk all the way to the right.
+ */
+ p = &(*p)->rb_right;
+ }
+ if (!parent) {
+ if (info->attr.mq_curmsgs) {
+ pr_warn_once("Inconsistency in POSIX message queue, "
+ "no tree element, but supposedly messages "
+ "should exist!\n");
+ info->attr.mq_curmsgs = 0;
+ }
+ return NULL;
+ }
+ leaf = rb_entry(parent, struct posix_msg_tree_node, rb_node);
+ if (unlikely(list_empty(&leaf->msg_list))) {
+ pr_warn_once("Inconsistency in POSIX message queue, "
+ "empty leaf node but we haven't implemented "
+ "lazy leaf delete!\n");
+ rb_erase(&leaf->rb_node, &info->msg_tree);
+ if (info->node_cache) {
+ info->qsize -= sizeof(*leaf);
+ kfree(leaf);
+ } else {
+ info->node_cache = leaf;
+ }
+ goto try_again;
+ } else {
+ msg = list_first_entry(&leaf->msg_list,
+ struct msg_msg, m_list);
+ list_del(&msg->m_list);
+ if (list_empty(&leaf->msg_list)) {
+ rb_erase(&leaf->rb_node, &info->msg_tree);
+ if (info->node_cache) {
+ info->qsize -= sizeof(*leaf);
+ kfree(leaf);
+ } else {
+ info->node_cache = leaf;
+ }
+ }
+ }
+ info->attr.mq_curmsgs--;
+ info->qsize -= msg->m_ts;
+ return msg;
+}
+
static struct inode *mqueue_get_inode(struct super_block *sb,
struct ipc_namespace *ipc_ns, umode_t mode,
struct mq_attr *attr)
if (S_ISREG(mode)) {
struct mqueue_inode_info *info;
- unsigned long mq_bytes, mq_msg_tblsz;
+ unsigned long mq_bytes, mq_treesize;
inode->i_fop = &mqueue_file_operations;
inode->i_size = FILENT_SIZE;
info->notify_user_ns = NULL;
info->qsize = 0;
info->user = NULL; /* set when all is ok */
+ info->msg_tree = RB_ROOT;
+ info->node_cache = NULL;
memset(&info->attr, 0, sizeof(info->attr));
- info->attr.mq_maxmsg = ipc_ns->mq_msg_max;
- info->attr.mq_msgsize = ipc_ns->mq_msgsize_max;
+ info->attr.mq_maxmsg = min(ipc_ns->mq_msg_max,
+ ipc_ns->mq_msg_default);
+ info->attr.mq_msgsize = min(ipc_ns->mq_msgsize_max,
+ ipc_ns->mq_msgsize_default);
if (attr) {
info->attr.mq_maxmsg = attr->mq_maxmsg;
info->attr.mq_msgsize = attr->mq_msgsize;
}
- mq_msg_tblsz = info->attr.mq_maxmsg * sizeof(struct msg_msg *);
- info->messages = kmalloc(mq_msg_tblsz, GFP_KERNEL);
- if (!info->messages)
- goto out_inode;
+ /*
+ * We used to allocate a static array of pointers and account
+ * the size of that array as well as one msg_msg struct per
+ * possible message into the queue size. That's no longer
+ * accurate as the queue is now an rbtree and will grow and
+ * shrink depending on usage patterns. We can, however, still
+ * account one msg_msg struct per message, but the nodes are
+ * allocated depending on priority usage, and most programs
+ * only use one, or a handful, of priorities. However, since
+ * this is pinned memory, we need to assume worst case, so
+ * that means the min(mq_maxmsg, max_priorities) * struct
+ * posix_msg_tree_node.
+ */
+ mq_treesize = info->attr.mq_maxmsg * sizeof(struct msg_msg) +
+ min_t(unsigned int, info->attr.mq_maxmsg, MQ_PRIO_MAX) *
+ sizeof(struct posix_msg_tree_node);
- mq_bytes = (mq_msg_tblsz +
- (info->attr.mq_maxmsg * info->attr.mq_msgsize));
+ mq_bytes = mq_treesize + (info->attr.mq_maxmsg *
+ info->attr.mq_msgsize);
spin_lock(&mq_lock);
if (u->mq_bytes + mq_bytes < u->mq_bytes ||
{
struct mqueue_inode_info *info;
struct user_struct *user;
- unsigned long mq_bytes;
- int i;
+ unsigned long mq_bytes, mq_treesize;
struct ipc_namespace *ipc_ns;
+ struct msg_msg *msg;
clear_inode(inode);
ipc_ns = get_ns_from_inode(inode);
info = MQUEUE_I(inode);
spin_lock(&info->lock);
- for (i = 0; i < info->attr.mq_curmsgs; i++)
- free_msg(info->messages[i]);
- kfree(info->messages);
+ while ((msg = msg_get(info)) != NULL)
+ free_msg(msg);
+ kfree(info->node_cache);
spin_unlock(&info->lock);
/* Total amount of bytes accounted for the mqueue */
- mq_bytes = info->attr.mq_maxmsg * (sizeof(struct msg_msg *)
- + info->attr.mq_msgsize);
+ mq_treesize = info->attr.mq_maxmsg * sizeof(struct msg_msg) +
+ min_t(unsigned int, info->attr.mq_maxmsg, MQ_PRIO_MAX) *
+ sizeof(struct posix_msg_tree_node);
+
+ mq_bytes = mq_treesize + (info->attr.mq_maxmsg *
+ info->attr.mq_msgsize);
+
user = info->user;
if (user) {
spin_lock(&mq_lock);
error = -EACCES;
goto out_unlock;
}
- if (ipc_ns->mq_queues_count >= ipc_ns->mq_queues_max &&
- !capable(CAP_SYS_RESOURCE)) {
+ if (ipc_ns->mq_queues_count >= HARD_QUEUESMAX ||
+ (ipc_ns->mq_queues_count >= ipc_ns->mq_queues_max &&
+ !capable(CAP_SYS_RESOURCE))) {
error = -ENOSPC;
goto out_unlock;
}
return list_entry(ptr, struct ext_wait_queue, list);
}
-/* Auxiliary functions to manipulate messages' list */
-static void msg_insert(struct msg_msg *ptr, struct mqueue_inode_info *info)
-{
- int k;
-
- k = info->attr.mq_curmsgs - 1;
- while (k >= 0 && info->messages[k]->m_type >= ptr->m_type) {
- info->messages[k + 1] = info->messages[k];
- k--;
- }
- info->attr.mq_curmsgs++;
- info->qsize += ptr->m_ts;
- info->messages[k + 1] = ptr;
-}
-
-static inline struct msg_msg *msg_get(struct mqueue_inode_info *info)
-{
- info->qsize -= info->messages[--info->attr.mq_curmsgs]->m_ts;
- return info->messages[info->attr.mq_curmsgs];
-}
static inline void set_cookie(struct sk_buff *skb, char code)
{
static int mq_attr_ok(struct ipc_namespace *ipc_ns, struct mq_attr *attr)
{
+ int mq_treesize;
+ unsigned long total_size;
+
if (attr->mq_maxmsg <= 0 || attr->mq_msgsize <= 0)
- return 0;
+ return -EINVAL;
if (capable(CAP_SYS_RESOURCE)) {
- if (attr->mq_maxmsg > HARD_MSGMAX)
- return 0;
+ if (attr->mq_maxmsg > HARD_MSGMAX ||
+ attr->mq_msgsize > HARD_MSGSIZEMAX)
+ return -EINVAL;
} else {
if (attr->mq_maxmsg > ipc_ns->mq_msg_max ||
attr->mq_msgsize > ipc_ns->mq_msgsize_max)
- return 0;
+ return -EINVAL;
}
/* check for overflow */
if (attr->mq_msgsize > ULONG_MAX/attr->mq_maxmsg)
- return 0;
- if ((unsigned long)(attr->mq_maxmsg * (attr->mq_msgsize
- + sizeof (struct msg_msg *))) <
- (unsigned long)(attr->mq_maxmsg * attr->mq_msgsize))
- return 0;
- return 1;
+ return -EOVERFLOW;
+ mq_treesize = attr->mq_maxmsg * sizeof(struct msg_msg) +
+ min_t(unsigned int, attr->mq_maxmsg, MQ_PRIO_MAX) *
+ sizeof(struct posix_msg_tree_node);
+ total_size = attr->mq_maxmsg * attr->mq_msgsize;
+ if (total_size + mq_treesize < total_size)
+ return -EOVERFLOW;
+ return 0;
}
/*
int ret;
if (attr) {
- if (!mq_attr_ok(ipc_ns, attr)) {
- ret = -EINVAL;
+ ret = mq_attr_ok(ipc_ns, attr);
+ if (ret)
goto out;
- }
/* store for use during create */
dentry->d_fsdata = attr;
+ } else {
+ struct mq_attr def_attr;
+
+ def_attr.mq_maxmsg = min(ipc_ns->mq_msg_max,
+ ipc_ns->mq_msg_default);
+ def_attr.mq_msgsize = min(ipc_ns->mq_msgsize_max,
+ ipc_ns->mq_msgsize_default);
+ ret = mq_attr_ok(ipc_ns, &def_attr);
+ if (ret)
+ goto out;
}
mode &= ~current_umask();
wake_up_interruptible(&info->wait_q);
return;
}
- msg_insert(sender->msg, info);
+ if (msg_insert(sender->msg, info))
+ return;
list_del(&sender->list);
sender->state = STATE_PENDING;
wake_up_process(sender->task);
struct mqueue_inode_info *info;
ktime_t expires, *timeout = NULL;
struct timespec ts;
- int ret;
+ struct posix_msg_tree_node *new_leaf = NULL;
+ int ret = 0;
if (u_abs_timeout) {
int res = prepare_timeout(u_abs_timeout, &expires, &ts);
msg_ptr->m_ts = msg_len;
msg_ptr->m_type = msg_prio;
+ /*
+ * msg_insert really wants us to have a valid, spare node struct so
+ * it doesn't have to kmalloc a GFP_ATOMIC allocation, but it will
+ * fall back to that if necessary.
+ */
+ if (!info->node_cache)
+ new_leaf = kmalloc(sizeof(*new_leaf), GFP_KERNEL);
+
spin_lock(&info->lock);
+ if (!info->node_cache && new_leaf) {
+ /* Save our speculative allocation into the cache */
+ rb_init_node(&new_leaf->rb_node);
+ INIT_LIST_HEAD(&new_leaf->msg_list);
+ info->node_cache = new_leaf;
+ info->qsize += sizeof(*new_leaf);
+ new_leaf = NULL;
+ } else {
+ kfree(new_leaf);
+ }
+
if (info->attr.mq_curmsgs == info->attr.mq_maxmsg) {
if (filp->f_flags & O_NONBLOCK) {
- spin_unlock(&info->lock);
ret = -EAGAIN;
} else {
wait.task = current;
wait.msg = (void *) msg_ptr;
wait.state = STATE_NONE;
ret = wq_sleep(info, SEND, timeout, &wait);
+ /*
+ * wq_sleep must be called with info->lock held, and
+ * returns with the lock released
+ */
+ goto out_free;
}
- if (ret < 0)
- free_msg(msg_ptr);
} else {
receiver = wq_get_first_waiter(info, RECV);
if (receiver) {
pipelined_send(info, msg_ptr, receiver);
} else {
/* adds message to the queue */
- msg_insert(msg_ptr, info);
+ ret = msg_insert(msg_ptr, info);
+ if (ret)
+ goto out_unlock;
__do_notify(info);
}
inode->i_atime = inode->i_mtime = inode->i_ctime =
CURRENT_TIME;
- spin_unlock(&info->lock);
- ret = 0;
}
+out_unlock:
+ spin_unlock(&info->lock);
+out_free:
+ if (ret)
+ free_msg(msg_ptr);
out_fput:
fput(filp);
out:
struct ext_wait_queue wait;
ktime_t expires, *timeout = NULL;
struct timespec ts;
+ struct posix_msg_tree_node *new_leaf = NULL;
if (u_abs_timeout) {
int res = prepare_timeout(u_abs_timeout, &expires, &ts);
goto out_fput;
}
+ /*
+ * msg_insert really wants us to have a valid, spare node struct so
+ * it doesn't have to kmalloc a GFP_ATOMIC allocation, but it will
+ * fall back to that if necessary.
+ */
+ if (!info->node_cache)
+ new_leaf = kmalloc(sizeof(*new_leaf), GFP_KERNEL);
+
spin_lock(&info->lock);
+
+ if (!info->node_cache && new_leaf) {
+ /* Save our speculative allocation into the cache */
+ rb_init_node(&new_leaf->rb_node);
+ INIT_LIST_HEAD(&new_leaf->msg_list);
+ info->node_cache = new_leaf;
+ info->qsize += sizeof(*new_leaf);
+ } else {
+ kfree(new_leaf);
+ }
+
if (info->attr.mq_curmsgs == 0) {
if (filp->f_flags & O_NONBLOCK) {
spin_unlock(&info->lock);
ns->mq_queues_max = DFLT_QUEUESMAX;
ns->mq_msg_max = DFLT_MSGMAX;
ns->mq_msgsize_max = DFLT_MSGSIZEMAX;
+ ns->mq_msg_default = DFLT_MSG;
+ ns->mq_msgsize_default = DFLT_MSGSIZE;
ns->mq_mnt = kern_mount_data(&mqueue_fs_type, ns);
if (IS_ERR(ns->mq_mnt)) {
sfd->file = shp->shm_file;
sfd->vm_ops = NULL;
+ err = security_mmap_file(file, prot, flags);
+ if (err)
+ goto out_fput;
+
down_write(¤t->mm->mmap_sem);
if (addr && !(shmflg & SHM_REMAP)) {
err = -EINVAL;
goto invalid;
}
- user_addr = do_mmap (file, addr, size, prot, flags, 0);
+ user_addr = do_mmap_pgoff(file, addr, size, prot, flags, 0);
*raddr = user_addr;
err = 0;
if (IS_ERR_VALUE(user_addr))
invalid:
up_write(¤t->mm->mmap_sem);
+out_fput:
fput(file);
out_nattch:
obj-y = fork.o exec_domain.o panic.o printk.o \
cpu.o exit.o itimer.o time.o softirq.o resource.o \
sysctl.o sysctl_binary.o capability.o ptrace.o timer.o user.o \
- signal.o sys.o kmod.o workqueue.o pid.o \
+ signal.o sys.o kmod.o workqueue.o pid.o task_work.o \
rcupdate.o extable.o params.o posix-timers.o \
kthread.o wait.o kfifo.o sys_ni.o posix-cpu-timers.o mutex.o \
hrtimer.o rwsem.o nsproxy.o srcu.o semaphore.o \
notifier.o ksysfs.o cred.o \
- async.o range.o groups.o
+ async.o range.o groups.o lglock.o
ifdef CONFIG_FUNCTION_TRACER
# Do not trace debug files and internal ftrace files
obj-y += sched/
obj-y += power/
+ifeq ($(CONFIG_CHECKPOINT_RESTORE),y)
+obj-$(CONFIG_X86) += kcmp.o
+endif
obj-$(CONFIG_FREEZER) += freezer.o
obj-$(CONFIG_PROFILING) += profile.o
obj-$(CONFIG_STACKTRACE) += stacktrace.o
* @root: the css supporsed to be an ancestor of the child.
*
* Returns true if "root" is an ancestor of "child" in its hierarchy. Because
- * this function reads css->id, this use rcu_dereference() and rcu_read_lock().
+ * this function reads css->id, the caller must hold rcu_read_lock().
* But, considering usual usage, the csses should be valid objects after test.
* Assuming that the caller will do some action to the child if this returns
* returns true, the caller must take "child";s reference count.
{
struct css_id *child_id;
struct css_id *root_id;
- bool ret = true;
- rcu_read_lock();
child_id = rcu_dereference(child->id);
+ if (!child_id)
+ return false;
root_id = rcu_dereference(root->id);
- if (!child_id
- || !root_id
- || (child_id->depth < root_id->depth)
- || (child_id->stack[root_id->depth] != root_id->id))
- ret = false;
- rcu_read_unlock();
- return ret;
+ if (!root_id)
+ return false;
+ if (child_id->depth < root_id->depth)
+ return false;
+ if (child_id->stack[root_id->depth] != root_id->id)
+ return false;
+ return true;
}
void free_css_id(struct cgroup_subsys *ss, struct cgroup_subsys_state *css)
#include <linux/sched.h>
#include <linux/unistd.h>
#include <linux/cpu.h>
+#include <linux/oom.h>
+#include <linux/rcupdate.h>
#include <linux/export.h>
+#include <linux/bug.h>
#include <linux/kthread.h>
#include <linux/stop_machine.h>
#include <linux/mutex.h>
}
EXPORT_SYMBOL(unregister_cpu_notifier);
+/**
+ * clear_tasks_mm_cpumask - Safely clear tasks' mm_cpumask for a CPU
+ * @cpu: a CPU id
+ *
+ * This function walks all processes, finds a valid mm struct for each one and
+ * then clears a corresponding bit in mm's cpumask. While this all sounds
+ * trivial, there are various non-obvious corner cases, which this function
+ * tries to solve in a safe manner.
+ *
+ * Also note that the function uses a somewhat relaxed locking scheme, so it may
+ * be called only for an already offlined CPU.
+ */
+void clear_tasks_mm_cpumask(int cpu)
+{
+ struct task_struct *p;
+
+ /*
+ * This function is called after the cpu is taken down and marked
+ * offline, so its not like new tasks will ever get this cpu set in
+ * their mm mask. -- Peter Zijlstra
+ * Thus, we may use rcu_read_lock() here, instead of grabbing
+ * full-fledged tasklist_lock.
+ */
+ WARN_ON(cpu_online(cpu));
+ rcu_read_lock();
+ for_each_process(p) {
+ struct task_struct *t;
+
+ /*
+ * Main thread might exit, but other threads may still have
+ * a valid mm. Find one.
+ */
+ t = find_lock_task_mm(p);
+ if (!t)
+ continue;
+ cpumask_clear_cpu(cpu, mm_cpumask(t->mm));
+ task_unlock(t);
+ }
+ rcu_read_unlock();
+}
+
static inline void check_for_tasks(int cpu)
{
struct task_struct *p;
EXPORT_SYMBOL_GPL(cpu_pm_unregister_notifier);
/**
- * cpm_pm_enter - CPU low power entry notifier
+ * cpu_pm_enter - CPU low power entry notifier
*
* Notifies listeners that a single CPU is entering a low power state that may
* cause some blocks in the same power domain as the cpu to reset.
* Must be called on the affected CPU with interrupts disabled. Platform is
* responsible for ensuring that cpu_pm_enter is not called twice on the same
* CPU before cpu_pm_exit is called. Notified drivers can include VFP
- * co-processor, interrupt controller and it's PM extensions, local CPU
+ * co-processor, interrupt controller and its PM extensions, local CPU
* timers context save/restore which shouldn't be interrupted. Hence it
* must be called with interrupts disabled.
*
EXPORT_SYMBOL_GPL(cpu_pm_enter);
/**
- * cpm_pm_exit - CPU low power exit notifier
+ * cpu_pm_exit - CPU low power exit notifier
*
* Notifies listeners that a single CPU is exiting a low power state that may
* have caused some blocks in the same power domain as the cpu to reset.
*
* Notified drivers can include VFP co-processor, interrupt controller
- * and it's PM extensions, local CPU timers context save/restore which
+ * and its PM extensions, local CPU timers context save/restore which
* shouldn't be interrupted. Hence it must be called with interrupts disabled.
*
* Return conditions are same as __raw_notifier_call_chain.
EXPORT_SYMBOL_GPL(cpu_pm_exit);
/**
- * cpm_cluster_pm_enter - CPU cluster low power entry notifier
+ * cpu_cluster_pm_enter - CPU cluster low power entry notifier
*
* Notifies listeners that all cpus in a power domain are entering a low power
* state that may cause some blocks in the same power domain to reset.
* Must be called after cpu_pm_enter has been called on all cpus in the power
* domain, and before cpu_pm_exit has been called on any cpu in the power
* domain. Notified drivers can include VFP co-processor, interrupt controller
- * and it's PM extensions, local CPU timers context save/restore which
+ * and its PM extensions, local CPU timers context save/restore which
* shouldn't be interrupted. Hence it must be called with interrupts disabled.
*
* Must be called with interrupts disabled.
EXPORT_SYMBOL_GPL(cpu_cluster_pm_enter);
/**
- * cpm_cluster_pm_exit - CPU cluster low power exit notifier
+ * cpu_cluster_pm_exit - CPU cluster low power exit notifier
*
* Notifies listeners that all cpus in a power domain are exiting form a
* low power state that may have caused some blocks in the same power domain
* Must be called after cpu_pm_exit has been called on all cpus in the power
* domain, and before cpu_pm_exit has been called on any cpu in the power
* domain. Notified drivers can include VFP co-processor, interrupt controller
- * and it's PM extensions, local CPU timers context save/restore which
+ * and its PM extensions, local CPU timers context save/restore which
* shouldn't be interrupted. Hence it must be called with interrupts disabled.
*
* Return conditions are same as __raw_notifier_call_chain.
validate_creds(cred);
alter_cred_subscribers(cred, -1);
put_cred(cred);
-
- cred = (struct cred *) tsk->replacement_session_keyring;
- if (cred) {
- tsk->replacement_session_keyring = NULL;
- validate_creds(cred);
- put_cred(cred);
- }
}
/**
struct cred *new;
int ret;
- p->replacement_session_keyring = NULL;
-
if (
#ifdef CONFIG_KEYS
!p->cred->thread_keyring &&
spin_lock(&low_water_lock);
if (free < lowest_to_date) {
- printk(KERN_WARNING "%s used greatest stack depth: %lu bytes "
- "left\n",
- current->comm, free);
+ printk(KERN_WARNING "%s (%d) used greatest stack depth: "
+ "%lu bytes left\n",
+ current->comm, task_pid_nr(current), free);
lowest_to_date = free;
}
spin_unlock(&low_water_lock);
exit_signals(tsk); /* sets PF_EXITING */
/*
* tsk->flags are checked in the futex code to protect against
- * an exiting task cleaning up the robust pi futexes.
+ * an exiting task cleaning up the robust pi futexes, and in
+ * task_work_add() to avoid the race with exit_task_work().
*/
smp_mb();
raw_spin_unlock_wait(&tsk->pi_lock);
- exit_irq_thread();
+ exit_task_work(tsk);
if (unlikely(in_atomic()))
printk(KERN_INFO "note: %s[%d] exited with preempt_count %d\n",
unsigned long state;
int retval, status, traced;
pid_t pid = task_pid_vnr(p);
- uid_t uid = from_kuid_munged(current_user_ns(), __task_cred(p)->uid);
+ uid_t uid = from_kuid_munged(current_user_ns(), task_uid(p));
struct siginfo __user *infop;
if (!likely(wo->wo_flags & WEXITED))
}
charge = 0;
if (mpnt->vm_flags & VM_ACCOUNT) {
- unsigned int len = (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT;
+ unsigned long len;
+ len = (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT;
if (security_vm_enough_memory_mm(oldmm, len)) /* sic */
goto fail_nomem;
charge = len;
list_del(&mm->mmlist);
spin_unlock(&mmlist_lock);
}
- put_swap_token(mm);
if (mm->binfmt)
module_put(mm->binfmt->module);
mmdrop(mm);
/* Get rid of any cached register state */
deactivate_mm(tsk, mm);
- if (tsk->vfork_done)
- complete_vfork_done(tsk);
-
/*
* If we're exiting normally, clear a user-space tid field if
* requested. We leave this alone when dying by signal, to leave
}
tsk->clear_child_tid = NULL;
}
+
+ /*
+ * All done, finally we can wake up parent and return this mm to him.
+ * Also kthread_stop() uses this completion for synchronization.
+ */
+ if (tsk->vfork_done)
+ complete_vfork_done(tsk);
}
/*
memcpy(mm, oldmm, sizeof(*mm));
mm_init_cpumask(mm);
- /* Initializing for Swap token stuff */
- mm->token_priority = 0;
- mm->last_interval = 0;
-
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
mm->pmd_huge_pte = NULL;
#endif
goto fail_nomem;
good_mm:
- /* Initializing for Swap token stuff */
- mm->token_priority = 0;
- mm->last_interval = 0;
-
tsk->mm = mm;
tsk->active_mm = mm;
return 0;
* Share io context with parent, if CLONE_IO is set
*/
if (clone_flags & CLONE_IO) {
- tsk->io_context = ioc_task_link(ioc);
- if (unlikely(!tsk->io_context))
- return -ENOMEM;
+ ioc_task_link(ioc);
+ tsk->io_context = ioc;
} else if (ioprio_valid(ioc->ioprio)) {
new_ioc = get_task_io_context(tsk, GFP_KERNEL, NUMA_NO_NODE);
if (unlikely(!new_ioc))
*/
p->group_leader = p;
INIT_LIST_HEAD(&p->thread_group);
+ INIT_HLIST_HEAD(&p->task_works);
/* Now that the task is set up, run cgroup callbacks if
* necessary. We need to run them before the task is visible
* This file contains driver APIs to the irq subsystem.
*/
+#define pr_fmt(fmt) "genirq: " fmt
+
#include <linux/irq.h>
#include <linux/kthread.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/sched.h>
+#include <linux/task_work.h>
#include "internals.h"
* IRQF_TRIGGER_* but the PIC does not support multiple
* flow-types?
*/
- pr_debug("genirq: No set_type function for IRQ %d (%s)\n", irq,
+ pr_debug("No set_type function for IRQ %d (%s)\n", irq,
chip ? (chip->name ? : "unknown") : "unknown");
return 0;
}
ret = 0;
break;
default:
- pr_err("genirq: Setting trigger mode %lu for irq %u failed (%pF)\n",
+ pr_err("Setting trigger mode %lu for irq %u failed (%pF)\n",
flags, irq, chip->irq_set_type);
}
if (unmask)
wake_up(&desc->wait_for_threads);
}
+static void irq_thread_dtor(struct task_work *unused)
+{
+ struct task_struct *tsk = current;
+ struct irq_desc *desc;
+ struct irqaction *action;
+
+ if (WARN_ON_ONCE(!(current->flags & PF_EXITING)))
+ return;
+
+ action = kthread_data(tsk);
+
+ pr_err("exiting task \"%s\" (%d) is an active IRQ thread (irq %d)\n",
+ tsk->comm ? tsk->comm : "", tsk->pid, action->irq);
+
+
+ desc = irq_to_desc(action->irq);
+ /*
+ * If IRQTF_RUNTHREAD is set, we need to decrement
+ * desc->threads_active and wake possible waiters.
+ */
+ if (test_and_clear_bit(IRQTF_RUNTHREAD, &action->thread_flags))
+ wake_threads_waitq(desc);
+
+ /* Prevent a stale desc->threads_oneshot */
+ irq_finalize_oneshot(desc, action);
+}
+
/*
* Interrupt handler thread
*/
static int irq_thread(void *data)
{
+ struct task_work on_exit_work;
static const struct sched_param param = {
.sched_priority = MAX_USER_RT_PRIO/2,
};
handler_fn = irq_thread_fn;
sched_setscheduler(current, SCHED_FIFO, ¶m);
- current->irq_thread = 1;
+
+ init_task_work(&on_exit_work, irq_thread_dtor, NULL);
+ task_work_add(current, &on_exit_work, false);
while (!irq_wait_for_interrupt(action)) {
irqreturn_t action_ret;
* cannot touch the oneshot mask at this point anymore as
* __setup_irq() might have given out currents thread_mask
* again.
- *
- * Clear irq_thread. Otherwise exit_irq_thread() would make
- * fuzz about an active irq thread going into nirvana.
*/
- current->irq_thread = 0;
+ task_work_cancel(current, irq_thread_dtor);
return 0;
}
-/*
- * Called from do_exit()
- */
-void exit_irq_thread(void)
-{
- struct task_struct *tsk = current;
- struct irq_desc *desc;
- struct irqaction *action;
-
- if (!tsk->irq_thread)
- return;
-
- action = kthread_data(tsk);
-
- pr_err("genirq: exiting task \"%s\" (%d) is an active IRQ thread (irq %d)\n",
- tsk->comm ? tsk->comm : "", tsk->pid, action->irq);
-
- desc = irq_to_desc(action->irq);
-
- /*
- * If IRQTF_RUNTHREAD is set, we need to decrement
- * desc->threads_active and wake possible waiters.
- */
- if (test_and_clear_bit(IRQTF_RUNTHREAD, &action->thread_flags))
- wake_threads_waitq(desc);
-
- /* Prevent a stale desc->threads_oneshot */
- irq_finalize_oneshot(desc, action);
-}
-
static void irq_setup_forced_threading(struct irqaction *new)
{
if (!force_irqthreads)
* has. The type flags are unreliable as the
* underlying chip implementation can override them.
*/
- pr_err("genirq: Threaded irq requested with handler=NULL and !ONESHOT for irq %d\n",
+ pr_err("Threaded irq requested with handler=NULL and !ONESHOT for irq %d\n",
irq);
ret = -EINVAL;
goto out_mask;
if (nmsk != omsk)
/* hope the handler works with current trigger mode */
- pr_warning("genirq: irq %d uses trigger mode %u; requested %u\n",
+ pr_warning("irq %d uses trigger mode %u; requested %u\n",
irq, nmsk, omsk);
}
mismatch:
if (!(new->flags & IRQF_PROBE_SHARED)) {
- pr_err("genirq: Flags mismatch irq %d. %08x (%s) vs. %08x (%s)\n",
+ pr_err("Flags mismatch irq %d. %08x (%s) vs. %08x (%s)\n",
irq, new->flags, new->name, old->flags, old->name);
#ifdef CONFIG_DEBUG_SHIRQ
dump_stack();
/* Look up a kernel symbol and return it in a text buffer. */
static int __sprint_symbol(char *buffer, unsigned long address,
- int symbol_offset)
+ int symbol_offset, int add_offset)
{
char *modname;
const char *name;
if (name != buffer)
strcpy(buffer, name);
len = strlen(buffer);
- buffer += len;
offset -= symbol_offset;
+ if (add_offset)
+ len += sprintf(buffer + len, "+%#lx/%#lx", offset, size);
+
if (modname)
- len += sprintf(buffer, "+%#lx/%#lx [%s]", offset, size, modname);
- else
- len += sprintf(buffer, "+%#lx/%#lx", offset, size);
+ len += sprintf(buffer + len, " [%s]", modname);
return len;
}
*/
int sprint_symbol(char *buffer, unsigned long address)
{
- return __sprint_symbol(buffer, address, 0);
+ return __sprint_symbol(buffer, address, 0, 1);
}
-
EXPORT_SYMBOL_GPL(sprint_symbol);
+/**
+ * sprint_symbol_no_offset - Look up a kernel symbol and return it in a text buffer
+ * @buffer: buffer to be stored
+ * @address: address to lookup
+ *
+ * This function looks up a kernel symbol with @address and stores its name
+ * and module name to @buffer if possible. If no symbol was found, just saves
+ * its @address as is.
+ *
+ * This function returns the number of bytes stored in @buffer.
+ */
+int sprint_symbol_no_offset(char *buffer, unsigned long address)
+{
+ return __sprint_symbol(buffer, address, 0, 0);
+}
+EXPORT_SYMBOL_GPL(sprint_symbol_no_offset);
+
/**
* sprint_backtrace - Look up a backtrace symbol and return it in a text buffer
* @buffer: buffer to be stored
*/
int sprint_backtrace(char *buffer, unsigned long address)
{
- return __sprint_symbol(buffer, address, -1);
+ return __sprint_symbol(buffer, address, -1, 1);
}
/* Look up a kernel symbol and print it to the kernel messages. */
--- /dev/null
+#include <linux/kernel.h>
+#include <linux/syscalls.h>
+#include <linux/fdtable.h>
+#include <linux/string.h>
+#include <linux/random.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/cache.h>
+#include <linux/bug.h>
+#include <linux/err.h>
+#include <linux/kcmp.h>
+
+#include <asm/unistd.h>
+
+/*
+ * We don't expose the real in-memory order of objects for security reasons.
+ * But still the comparison results should be suitable for sorting. So we
+ * obfuscate kernel pointers values and compare the production instead.
+ *
+ * The obfuscation is done in two steps. First we xor the kernel pointer with
+ * a random value, which puts pointer into a new position in a reordered space.
+ * Secondly we multiply the xor production with a large odd random number to
+ * permute its bits even more (the odd multiplier guarantees that the product
+ * is unique ever after the high bits are truncated, since any odd number is
+ * relative prime to 2^n).
+ *
+ * Note also that the obfuscation itself is invisible to userspace and if needed
+ * it can be changed to an alternate scheme.
+ */
+static unsigned long cookies[KCMP_TYPES][2] __read_mostly;
+
+static long kptr_obfuscate(long v, int type)
+{
+ return (v ^ cookies[type][0]) * cookies[type][1];
+}
+
+/*
+ * 0 - equal, i.e. v1 = v2
+ * 1 - less than, i.e. v1 < v2
+ * 2 - greater than, i.e. v1 > v2
+ * 3 - not equal but ordering unavailable (reserved for future)
+ */
+static int kcmp_ptr(void *v1, void *v2, enum kcmp_type type)
+{
+ long ret;
+
+ ret = kptr_obfuscate((long)v1, type) - kptr_obfuscate((long)v2, type);
+
+ return (ret < 0) | ((ret > 0) << 1);
+}
+
+/* The caller must have pinned the task */
+static struct file *
+get_file_raw_ptr(struct task_struct *task, unsigned int idx)
+{
+ struct file *file = NULL;
+
+ task_lock(task);
+ rcu_read_lock();
+
+ if (task->files)
+ file = fcheck_files(task->files, idx);
+
+ rcu_read_unlock();
+ task_unlock(task);
+
+ return file;
+}
+
+static void kcmp_unlock(struct mutex *m1, struct mutex *m2)
+{
+ if (likely(m2 != m1))
+ mutex_unlock(m2);
+ mutex_unlock(m1);
+}
+
+static int kcmp_lock(struct mutex *m1, struct mutex *m2)
+{
+ int err;
+
+ if (m2 > m1)
+ swap(m1, m2);
+
+ err = mutex_lock_killable(m1);
+ if (!err && likely(m1 != m2)) {
+ err = mutex_lock_killable_nested(m2, SINGLE_DEPTH_NESTING);
+ if (err)
+ mutex_unlock(m1);
+ }
+
+ return err;
+}
+
+SYSCALL_DEFINE5(kcmp, pid_t, pid1, pid_t, pid2, int, type,
+ unsigned long, idx1, unsigned long, idx2)
+{
+ struct task_struct *task1, *task2;
+ int ret;
+
+ rcu_read_lock();
+
+ /*
+ * Tasks are looked up in caller's PID namespace only.
+ */
+ task1 = find_task_by_vpid(pid1);
+ task2 = find_task_by_vpid(pid2);
+ if (!task1 || !task2)
+ goto err_no_task;
+
+ get_task_struct(task1);
+ get_task_struct(task2);
+
+ rcu_read_unlock();
+
+ /*
+ * One should have enough rights to inspect task details.
+ */
+ ret = kcmp_lock(&task1->signal->cred_guard_mutex,
+ &task2->signal->cred_guard_mutex);
+ if (ret)
+ goto err;
+ if (!ptrace_may_access(task1, PTRACE_MODE_READ) ||
+ !ptrace_may_access(task2, PTRACE_MODE_READ)) {
+ ret = -EPERM;
+ goto err_unlock;
+ }
+
+ switch (type) {
+ case KCMP_FILE: {
+ struct file *filp1, *filp2;
+
+ filp1 = get_file_raw_ptr(task1, idx1);
+ filp2 = get_file_raw_ptr(task2, idx2);
+
+ if (filp1 && filp2)
+ ret = kcmp_ptr(filp1, filp2, KCMP_FILE);
+ else
+ ret = -EBADF;
+ break;
+ }
+ case KCMP_VM:
+ ret = kcmp_ptr(task1->mm, task2->mm, KCMP_VM);
+ break;
+ case KCMP_FILES:
+ ret = kcmp_ptr(task1->files, task2->files, KCMP_FILES);
+ break;
+ case KCMP_FS:
+ ret = kcmp_ptr(task1->fs, task2->fs, KCMP_FS);
+ break;
+ case KCMP_SIGHAND:
+ ret = kcmp_ptr(task1->sighand, task2->sighand, KCMP_SIGHAND);
+ break;
+ case KCMP_IO:
+ ret = kcmp_ptr(task1->io_context, task2->io_context, KCMP_IO);
+ break;
+ case KCMP_SYSVSEM:
+#ifdef CONFIG_SYSVIPC
+ ret = kcmp_ptr(task1->sysvsem.undo_list,
+ task2->sysvsem.undo_list,
+ KCMP_SYSVSEM);
+#else
+ ret = -EOPNOTSUPP;
+#endif
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+err_unlock:
+ kcmp_unlock(&task1->signal->cred_guard_mutex,
+ &task2->signal->cred_guard_mutex);
+err:
+ put_task_struct(task1);
+ put_task_struct(task2);
+
+ return ret;
+
+err_no_task:
+ rcu_read_unlock();
+ return -ESRCH;
+}
+
+static __init int kcmp_cookies_init(void)
+{
+ int i;
+
+ get_random_bytes(cookies, sizeof(cookies));
+
+ for (i = 0; i < KCMP_TYPES; i++)
+ cookies[i][1] |= (~(~0UL >> 1) | 1);
+
+ return 0;
+}
+arch_initcall(kcmp_cookies_init);
return 0;
}
-void call_usermodehelper_freeinfo(struct subprocess_info *info)
+static void call_usermodehelper_freeinfo(struct subprocess_info *info)
{
if (info->cleanup)
(*info->cleanup)(info);
kfree(info);
}
-EXPORT_SYMBOL(call_usermodehelper_freeinfo);
static void umh_complete(struct subprocess_info *sub_info)
{
/**
* __usermodehelper_set_disable_depth - Modify usermodehelper_disabled.
- * depth: New value to assign to usermodehelper_disabled.
+ * @depth: New value to assign to usermodehelper_disabled.
*
* Change the value of usermodehelper_disabled (under umhelper_sem locked for
* writing) and wakeup tasks waiting for it to change.
* structure. This should be passed to call_usermodehelper_exec to
* exec the process and free the structure.
*/
+static
struct subprocess_info *call_usermodehelper_setup(char *path, char **argv,
char **envp, gfp_t gfp_mask)
{
out:
return sub_info;
}
-EXPORT_SYMBOL(call_usermodehelper_setup);
/**
* call_usermodehelper_setfns - set a cleanup/init function
* Function must be runnable in either a process context or the
* context in which call_usermodehelper_exec is called.
*/
+static
void call_usermodehelper_setfns(struct subprocess_info *info,
int (*init)(struct subprocess_info *info, struct cred *new),
void (*cleanup)(struct subprocess_info *info),
info->init = init;
info->data = data;
}
-EXPORT_SYMBOL(call_usermodehelper_setfns);
/**
* call_usermodehelper_exec - start a usermode application
* asynchronously if wait is not set, and runs as a child of keventd.
* (ie. it runs with full root capabilities).
*/
+static
int call_usermodehelper_exec(struct subprocess_info *sub_info, int wait)
{
DECLARE_COMPLETION_ONSTACK(done);
helper_unlock();
return retval;
}
-EXPORT_SYMBOL(call_usermodehelper_exec);
+
+int call_usermodehelper_fns(
+ char *path, char **argv, char **envp, int wait,
+ int (*init)(struct subprocess_info *info, struct cred *new),
+ void (*cleanup)(struct subprocess_info *), void *data)
+{
+ struct subprocess_info *info;
+ gfp_t gfp_mask = (wait == UMH_NO_WAIT) ? GFP_ATOMIC : GFP_KERNEL;
+
+ info = call_usermodehelper_setup(path, argv, envp, gfp_mask);
+
+ if (info == NULL)
+ return -ENOMEM;
+
+ call_usermodehelper_setfns(info, init, cleanup, data);
+
+ return call_usermodehelper_exec(info, wait);
+}
+EXPORT_SYMBOL(call_usermodehelper_fns);
static int proc_cap_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
--- /dev/null
+/* See include/linux/lglock.h for description */
+#include <linux/module.h>
+#include <linux/lglock.h>
+#include <linux/cpu.h>
+#include <linux/string.h>
+
+/*
+ * Note there is no uninit, so lglocks cannot be defined in
+ * modules (but it's fine to use them from there)
+ * Could be added though, just undo lg_lock_init
+ */
+
+void lg_lock_init(struct lglock *lg, char *name)
+{
+ LOCKDEP_INIT_MAP(&lg->lock_dep_map, name, &lg->lock_key, 0);
+}
+EXPORT_SYMBOL(lg_lock_init);
+
+void lg_local_lock(struct lglock *lg)
+{
+ arch_spinlock_t *lock;
+
+ preempt_disable();
+ rwlock_acquire_read(&lg->lock_dep_map, 0, 0, _RET_IP_);
+ lock = this_cpu_ptr(lg->lock);
+ arch_spin_lock(lock);
+}
+EXPORT_SYMBOL(lg_local_lock);
+
+void lg_local_unlock(struct lglock *lg)
+{
+ arch_spinlock_t *lock;
+
+ rwlock_release(&lg->lock_dep_map, 1, _RET_IP_);
+ lock = this_cpu_ptr(lg->lock);
+ arch_spin_unlock(lock);
+ preempt_enable();
+}
+EXPORT_SYMBOL(lg_local_unlock);
+
+void lg_local_lock_cpu(struct lglock *lg, int cpu)
+{
+ arch_spinlock_t *lock;
+
+ preempt_disable();
+ rwlock_acquire_read(&lg->lock_dep_map, 0, 0, _RET_IP_);
+ lock = per_cpu_ptr(lg->lock, cpu);
+ arch_spin_lock(lock);
+}
+EXPORT_SYMBOL(lg_local_lock_cpu);
+
+void lg_local_unlock_cpu(struct lglock *lg, int cpu)
+{
+ arch_spinlock_t *lock;
+
+ rwlock_release(&lg->lock_dep_map, 1, _RET_IP_);
+ lock = per_cpu_ptr(lg->lock, cpu);
+ arch_spin_unlock(lock);
+ preempt_enable();
+}
+EXPORT_SYMBOL(lg_local_unlock_cpu);
+
+void lg_global_lock(struct lglock *lg)
+{
+ int i;
+
+ preempt_disable();
+ rwlock_acquire(&lg->lock_dep_map, 0, 0, _RET_IP_);
+ for_each_possible_cpu(i) {
+ arch_spinlock_t *lock;
+ lock = per_cpu_ptr(lg->lock, i);
+ arch_spin_lock(lock);
+ }
+}
+EXPORT_SYMBOL(lg_global_lock);
+
+void lg_global_unlock(struct lglock *lg)
+{
+ int i;
+
+ rwlock_release(&lg->lock_dep_map, 1, _RET_IP_);
+ for_each_possible_cpu(i) {
+ arch_spinlock_t *lock;
+ lock = per_cpu_ptr(lg->lock, i);
+ arch_spin_unlock(lock);
+ }
+ preempt_enable();
+}
+EXPORT_SYMBOL(lg_global_unlock);
{
int nr;
int rc;
- struct task_struct *task;
+ struct task_struct *task, *me = current;
+
+ /* Ignore SIGCHLD causing any terminated children to autoreap */
+ spin_lock_irq(&me->sighand->siglock);
+ me->sighand->action[SIGCHLD - 1].sa.sa_handler = SIG_IGN;
+ spin_unlock_irq(&me->sighand->siglock);
/*
* The last thread in the cgroup-init thread group is terminating.
return;
}
+#ifdef CONFIG_CHECKPOINT_RESTORE
static int pid_ns_ctl_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
},
{ }
};
-
static struct ctl_path kern_path[] = { { .procname = "kernel", }, { } };
+#endif /* CONFIG_CHECKPOINT_RESTORE */
int reboot_pid_ns(struct pid_namespace *pid_ns, int cmd)
{
static __init int pid_namespaces_init(void)
{
pid_ns_cachep = KMEM_CACHE(pid_namespace, SLAB_PANIC);
+
+#ifdef CONFIG_CHECKPOINT_RESTORE
register_sysctl_paths(kern_path, pid_ns_ctl_table);
+#endif
return 0;
}
counter->usage -= val;
}
-void res_counter_uncharge(struct res_counter *counter, unsigned long val)
+void res_counter_uncharge_until(struct res_counter *counter,
+ struct res_counter *top,
+ unsigned long val)
{
unsigned long flags;
struct res_counter *c;
local_irq_save(flags);
- for (c = counter; c != NULL; c = c->parent) {
+ for (c = counter; c != top; c = c->parent) {
spin_lock(&c->lock);
res_counter_uncharge_locked(c, val);
spin_unlock(&c->lock);
local_irq_restore(flags);
}
+void res_counter_uncharge(struct res_counter *counter, unsigned long val)
+{
+ res_counter_uncharge_until(counter, NULL, val);
+}
static inline unsigned long long *
res_counter_member(struct res_counter *counter, int member)
* @root: root resource descriptor
* @new: resource descriptor desired by caller
* @size: requested resource region size
- * @min: minimum size to allocate
- * @max: maximum size to allocate
+ * @min: minimum boundary to allocate
+ * @max: maximum boundary to allocate
* @align: alignment requested, in bytes
* @alignf: alignment function, optional, called if not NULL
* @alignf_data: arbitrary data to pass to the @alignf function
info.si_signo = sig;
info.si_errno = 0;
/*
- * we are under tasklist_lock here so our parent is tied to
- * us and cannot exit and release its namespace.
+ * We are under tasklist_lock here so our parent is tied to
+ * us and cannot change.
*
- * the only it can is to switch its nsproxy with sys_unshare,
- * bu uncharing pid namespaces is not allowed, so we'll always
- * see relevant namespace
+ * task_active_pid_ns will always return the same pid namespace
+ * until a task passes through release_task.
*
* write_lock() currently calls preempt_disable() which is the
* same as rcu_read_lock(), but according to Oleg, this is not
* correct to rely on this
*/
rcu_read_lock();
- info.si_pid = task_pid_nr_ns(tsk, tsk->parent->nsproxy->pid_ns);
+ info.si_pid = task_pid_nr_ns(tsk, task_active_pid_ns(tsk->parent));
info.si_uid = from_kuid_munged(task_cred_xxx(tsk->parent, user_ns),
task_uid(tsk));
rcu_read_unlock();
}
/**
- * block_sigmask - add @ka's signal mask to current->blocked
- * @ka: action for @signr
- * @signr: signal that has been successfully delivered
+ * signal_delivered -
+ * @sig: number of signal being delivered
+ * @info: siginfo_t of signal being delivered
+ * @ka: sigaction setting that chose the handler
+ * @regs: user register state
+ * @stepping: nonzero if debugger single-step or block-step in use
*
* This function should be called when a signal has succesfully been
- * delivered. It adds the mask of signals for @ka to current->blocked
- * so that they are blocked during the execution of the signal
- * handler. In addition, @signr will be blocked unless %SA_NODEFER is
- * set in @ka->sa.sa_flags.
+ * delivered. It updates the blocked signals accordingly (@ka->sa.sa_mask
+ * is always blocked, and the signal itself is blocked unless %SA_NODEFER
+ * is set in @ka->sa.sa_flags. Tracing is notified.
*/
-void block_sigmask(struct k_sigaction *ka, int signr)
+void signal_delivered(int sig, siginfo_t *info, struct k_sigaction *ka,
+ struct pt_regs *regs, int stepping)
{
sigset_t blocked;
+ /* A signal was successfully delivered, and the
+ saved sigmask was stored on the signal frame,
+ and will be restored by sigreturn. So we can
+ simply clear the restore sigmask flag. */
+ clear_restore_sigmask();
+
sigorsets(&blocked, ¤t->blocked, &ka->sa.sa_mask);
if (!(ka->sa.sa_flags & SA_NODEFER))
- sigaddset(&blocked, signr);
+ sigaddset(&blocked, sig);
set_current_blocked(&blocked);
+ tracehook_signal_handler(sig, info, ka, regs, stepping);
}
/*
* It is wrong to change ->blocked directly, this helper should be used
* to ensure the process can't miss a shared signal we are going to block.
*/
-void set_current_blocked(const sigset_t *newset)
+void set_current_blocked(sigset_t *newset)
+{
+ struct task_struct *tsk = current;
+ sigdelsetmask(newset, sigmask(SIGKILL) | sigmask(SIGSTOP));
+ spin_lock_irq(&tsk->sighand->siglock);
+ __set_task_blocked(tsk, newset);
+ spin_unlock_irq(&tsk->sighand->siglock);
+}
+
+void __set_current_blocked(const sigset_t *newset)
{
struct task_struct *tsk = current;
return -EINVAL;
}
- set_current_blocked(&newset);
+ __set_current_blocked(&newset);
return 0;
}
return -EINVAL;
}
- set_current_blocked(&new_blocked);
+ __set_current_blocked(&new_blocked);
}
if (oset) {
int old = current->blocked.sig[0];
sigset_t newset;
- siginitset(&newset, newmask & ~(sigmask(SIGKILL) | sigmask(SIGSTOP)));
set_current_blocked(&newset);
return old;
#endif
-#ifdef HAVE_SET_RESTORE_SIGMASK
int sigsuspend(sigset_t *set)
{
- sigdelsetmask(set, sigmask(SIGKILL)|sigmask(SIGSTOP));
-
current->saved_sigmask = current->blocked;
set_current_blocked(set);
set_restore_sigmask();
return -ERESTARTNOHAND;
}
-#endif
#ifdef __ARCH_WANT_SYS_RT_SIGSUSPEND
/**
#include <linux/personality.h>
#include <linux/ptrace.h>
#include <linux/fs_struct.h>
+#include <linux/file.h>
+#include <linux/mount.h>
#include <linux/gfp.h>
#include <linux/syscore_ops.h>
#include <linux/version.h>
memcpy(u->nodename, tmp, len);
memset(u->nodename + len, 0, sizeof(u->nodename) - len);
errno = 0;
+ uts_proc_notify(UTS_PROC_HOSTNAME);
}
- uts_proc_notify(UTS_PROC_HOSTNAME);
up_write(&uts_sem);
return errno;
}
memcpy(u->domainname, tmp, len);
memset(u->domainname + len, 0, sizeof(u->domainname) - len);
errno = 0;
+ uts_proc_notify(UTS_PROC_DOMAINNAME);
}
- uts_proc_notify(UTS_PROC_DOMAINNAME);
up_write(&uts_sem);
return errno;
}
}
#ifdef CONFIG_CHECKPOINT_RESTORE
+static bool vma_flags_mismatch(struct vm_area_struct *vma,
+ unsigned long required,
+ unsigned long banned)
+{
+ return (vma->vm_flags & required) != required ||
+ (vma->vm_flags & banned);
+}
+
+static int prctl_set_mm_exe_file(struct mm_struct *mm, unsigned int fd)
+{
+ struct file *exe_file;
+ struct dentry *dentry;
+ int err;
+
+ /*
+ * Setting new mm::exe_file is only allowed when no VM_EXECUTABLE vma's
+ * remain. So perform a quick test first.
+ */
+ if (mm->num_exe_file_vmas)
+ return -EBUSY;
+
+ exe_file = fget(fd);
+ if (!exe_file)
+ return -EBADF;
+
+ dentry = exe_file->f_path.dentry;
+
+ /*
+ * Because the original mm->exe_file points to executable file, make
+ * sure that this one is executable as well, to avoid breaking an
+ * overall picture.
+ */
+ err = -EACCES;
+ if (!S_ISREG(dentry->d_inode->i_mode) ||
+ exe_file->f_path.mnt->mnt_flags & MNT_NOEXEC)
+ goto exit;
+
+ err = inode_permission(dentry->d_inode, MAY_EXEC);
+ if (err)
+ goto exit;
+
+ /*
+ * The symlink can be changed only once, just to disallow arbitrary
+ * transitions malicious software might bring in. This means one
+ * could make a snapshot over all processes running and monitor
+ * /proc/pid/exe changes to notice unusual activity if needed.
+ */
+ down_write(&mm->mmap_sem);
+ if (likely(!mm->exe_file))
+ set_mm_exe_file(mm, exe_file);
+ else
+ err = -EBUSY;
+ up_write(&mm->mmap_sem);
+
+exit:
+ fput(exe_file);
+ return err;
+}
+
static int prctl_set_mm(int opt, unsigned long addr,
unsigned long arg4, unsigned long arg5)
{
unsigned long rlim = rlimit(RLIMIT_DATA);
- unsigned long vm_req_flags;
- unsigned long vm_bad_flags;
- struct vm_area_struct *vma;
- int error = 0;
struct mm_struct *mm = current->mm;
+ struct vm_area_struct *vma;
+ int error;
- if (arg4 | arg5)
+ if (arg5 || (arg4 && opt != PR_SET_MM_AUXV))
return -EINVAL;
if (!capable(CAP_SYS_RESOURCE))
return -EPERM;
+ if (opt == PR_SET_MM_EXE_FILE)
+ return prctl_set_mm_exe_file(mm, (unsigned int)addr);
+
if (addr >= TASK_SIZE)
return -EINVAL;
+ error = -EINVAL;
+
down_read(&mm->mmap_sem);
vma = find_vma(mm, addr);
- if (opt != PR_SET_MM_START_BRK && opt != PR_SET_MM_BRK) {
- /* It must be existing VMA */
- if (!vma || vma->vm_start > addr)
- goto out;
- }
-
- error = -EINVAL;
switch (opt) {
case PR_SET_MM_START_CODE:
+ mm->start_code = addr;
+ break;
case PR_SET_MM_END_CODE:
- vm_req_flags = VM_READ | VM_EXEC;
- vm_bad_flags = VM_WRITE | VM_MAYSHARE;
-
- if ((vma->vm_flags & vm_req_flags) != vm_req_flags ||
- (vma->vm_flags & vm_bad_flags))
- goto out;
-
- if (opt == PR_SET_MM_START_CODE)
- mm->start_code = addr;
- else
- mm->end_code = addr;
+ mm->end_code = addr;
break;
-
case PR_SET_MM_START_DATA:
- case PR_SET_MM_END_DATA:
- vm_req_flags = VM_READ | VM_WRITE;
- vm_bad_flags = VM_EXEC | VM_MAYSHARE;
-
- if ((vma->vm_flags & vm_req_flags) != vm_req_flags ||
- (vma->vm_flags & vm_bad_flags))
- goto out;
-
- if (opt == PR_SET_MM_START_DATA)
- mm->start_data = addr;
- else
- mm->end_data = addr;
+ mm->start_data = addr;
break;
-
- case PR_SET_MM_START_STACK:
-
-#ifdef CONFIG_STACK_GROWSUP
- vm_req_flags = VM_READ | VM_WRITE | VM_GROWSUP;
-#else
- vm_req_flags = VM_READ | VM_WRITE | VM_GROWSDOWN;
-#endif
- if ((vma->vm_flags & vm_req_flags) != vm_req_flags)
- goto out;
-
- mm->start_stack = addr;
+ case PR_SET_MM_END_DATA:
+ mm->end_data = addr;
break;
case PR_SET_MM_START_BRK:
mm->brk = addr;
break;
+ /*
+ * If command line arguments and environment
+ * are placed somewhere else on stack, we can
+ * set them up here, ARG_START/END to setup
+ * command line argumets and ENV_START/END
+ * for environment.
+ */
+ case PR_SET_MM_START_STACK:
+ case PR_SET_MM_ARG_START:
+ case PR_SET_MM_ARG_END:
+ case PR_SET_MM_ENV_START:
+ case PR_SET_MM_ENV_END:
+ if (!vma) {
+ error = -EFAULT;
+ goto out;
+ }
+#ifdef CONFIG_STACK_GROWSUP
+ if (vma_flags_mismatch(vma, VM_READ | VM_WRITE | VM_GROWSUP, 0))
+#else
+ if (vma_flags_mismatch(vma, VM_READ | VM_WRITE | VM_GROWSDOWN, 0))
+#endif
+ goto out;
+ if (opt == PR_SET_MM_START_STACK)
+ mm->start_stack = addr;
+ else if (opt == PR_SET_MM_ARG_START)
+ mm->arg_start = addr;
+ else if (opt == PR_SET_MM_ARG_END)
+ mm->arg_end = addr;
+ else if (opt == PR_SET_MM_ENV_START)
+ mm->env_start = addr;
+ else if (opt == PR_SET_MM_ENV_END)
+ mm->env_end = addr;
+ break;
+
+ /*
+ * This doesn't move auxiliary vector itself
+ * since it's pinned to mm_struct, but allow
+ * to fill vector with new values. It's up
+ * to a caller to provide sane values here
+ * otherwise user space tools which use this
+ * vector might be unhappy.
+ */
+ case PR_SET_MM_AUXV: {
+ unsigned long user_auxv[AT_VECTOR_SIZE];
+
+ if (arg4 > sizeof(user_auxv))
+ goto out;
+ up_read(&mm->mmap_sem);
+
+ if (copy_from_user(user_auxv, (const void __user *)addr, arg4))
+ return -EFAULT;
+
+ /* Make sure the last entry is always AT_NULL */
+ user_auxv[AT_VECTOR_SIZE - 2] = 0;
+ user_auxv[AT_VECTOR_SIZE - 1] = 0;
+
+ BUILD_BUG_ON(sizeof(user_auxv) != sizeof(mm->saved_auxv));
+
+ task_lock(current);
+ memcpy(mm->saved_auxv, user_auxv, arg4);
+ task_unlock(current);
+
+ return 0;
+ }
default:
- error = -EINVAL;
goto out;
}
error = 0;
-
out:
up_read(&mm->mmap_sem);
-
return error;
}
#else /* CONFIG_CHECKPOINT_RESTORE */
NULL
};
int ret = -ENOMEM;
- struct subprocess_info *info;
if (argv == NULL) {
printk(KERN_WARNING "%s failed to allocate memory for \"%s\"\n",
goto out;
}
- info = call_usermodehelper_setup(argv[0], argv, envp, GFP_ATOMIC);
- if (info == NULL) {
- argv_free(argv);
- goto out;
- }
-
- call_usermodehelper_setfns(info, NULL, argv_cleanup, NULL);
+ ret = call_usermodehelper_fns(argv[0], argv, envp, UMH_NO_WAIT,
+ NULL, argv_cleanup, NULL);
+out:
+ if (likely(!ret))
+ return 0;
- ret = call_usermodehelper_exec(info, UMH_NO_WAIT);
+ if (ret == -ENOMEM)
+ argv_free(argv);
- out:
- if (ret && force) {
+ if (force) {
printk(KERN_WARNING "Failed to start orderly shutdown: "
"forcing the issue\n");
cond_syscall(sys_name_to_handle_at);
cond_syscall(sys_open_by_handle_at);
cond_syscall(compat_sys_open_by_handle_at);
+
+/* compare kernel pointers */
+cond_syscall(sys_kcmp);
--- /dev/null
+#include <linux/spinlock.h>
+#include <linux/task_work.h>
+#include <linux/tracehook.h>
+
+int
+task_work_add(struct task_struct *task, struct task_work *twork, bool notify)
+{
+ unsigned long flags;
+ int err = -ESRCH;
+
+#ifndef TIF_NOTIFY_RESUME
+ if (notify)
+ return -ENOTSUPP;
+#endif
+ /*
+ * We must not insert the new work if the task has already passed
+ * exit_task_work(). We rely on do_exit()->raw_spin_unlock_wait()
+ * and check PF_EXITING under pi_lock.
+ */
+ raw_spin_lock_irqsave(&task->pi_lock, flags);
+ if (likely(!(task->flags & PF_EXITING))) {
+ hlist_add_head(&twork->hlist, &task->task_works);
+ err = 0;
+ }
+ raw_spin_unlock_irqrestore(&task->pi_lock, flags);
+
+ /* test_and_set_bit() implies mb(), see tracehook_notify_resume(). */
+ if (likely(!err) && notify)
+ set_notify_resume(task);
+ return err;
+}
+
+struct task_work *
+task_work_cancel(struct task_struct *task, task_work_func_t func)
+{
+ unsigned long flags;
+ struct task_work *twork;
+ struct hlist_node *pos;
+
+ raw_spin_lock_irqsave(&task->pi_lock, flags);
+ hlist_for_each_entry(twork, pos, &task->task_works, hlist) {
+ if (twork->func == func) {
+ hlist_del(&twork->hlist);
+ goto found;
+ }
+ }
+ twork = NULL;
+ found:
+ raw_spin_unlock_irqrestore(&task->pi_lock, flags);
+
+ return twork;
+}
+
+void task_work_run(void)
+{
+ struct task_struct *task = current;
+ struct hlist_head task_works;
+ struct hlist_node *pos;
+
+ raw_spin_lock_irq(&task->pi_lock);
+ hlist_move_list(&task->task_works, &task_works);
+ raw_spin_unlock_irq(&task->pi_lock);
+
+ if (unlikely(hlist_empty(&task_works)))
+ return;
+ /*
+ * We use hlist to save the space in task_struct, but we want fifo.
+ * Find the last entry, the list should be short, then process them
+ * in reverse order.
+ */
+ for (pos = task_works.first; pos->next; pos = pos->next)
+ ;
+
+ for (;;) {
+ struct hlist_node **pprev = pos->pprev;
+ struct task_work *twork = container_of(pos, struct task_work,
+ hlist);
+ twork->func(twork);
+
+ if (pprev == &task_works.first)
+ break;
+ pos = container_of(pprev, struct hlist_node, next);
+ }
+}
if (!buffer)
return size;
+ /* Make sure the requested buffer exists */
+ if (cpu_id != RING_BUFFER_ALL_CPUS &&
+ !cpumask_test_cpu(cpu_id, buffer->cpumask))
+ return size;
+
size = DIV_ROUND_UP(size, BUF_PAGE_SIZE);
size *= BUF_PAGE_SIZE;
* @nmaskbits: size of bitmap, in bits
*
* Exactly @nmaskbits bits are displayed. Hex digits are grouped into
- * comma-separated sets of eight digits per set.
+ * comma-separated sets of eight digits per set. Returns the number of
+ * characters which were written to *buf, excluding the trailing \0.
*/
int bitmap_scnprintf(char *buf, unsigned int buflen,
const unsigned long *maskp, int nmaskbits)
*
* Helper routine for bitmap_scnlistprintf(). Write decimal number
* or range to buf, suppressing output past buf+buflen, with optional
- * comma-prefix. Return len of what would be written to buf, if it
- * all fit.
+ * comma-prefix. Return len of what was written to *buf, excluding the
+ * trailing \0.
*/
static inline int bscnl_emit(char *buf, int buflen, int rbot, int rtop, int len)
{
* the range. Output format is compatible with the format
* accepted as input by bitmap_parselist().
*
- * The return value is the number of characters which would be
- * generated for the given input, excluding the trailing '\0', as
- * per ISO C99.
+ * The return value is the number of characters which were written to *buf
+ * excluding the trailing '\0', as per ISO C99's scnprintf.
*/
int bitmap_scnlistprintf(char *buf, unsigned int buflen,
const unsigned long *maskp, int nmaskbits)
*/
static struct dma_debug_entry *dma_entry_alloc(void)
{
- struct dma_debug_entry *entry = NULL;
+ struct dma_debug_entry *entry;
unsigned long flags;
spin_lock_irqsave(&free_entries_lock, flags);
if (list_empty(&free_entries)) {
pr_err("DMA-API: debugging out of memory - disabling\n");
global_disable = true;
- goto out;
+ spin_unlock_irqrestore(&free_entries_lock, flags);
+ return NULL;
}
entry = __dma_entry_alloc();
+ spin_unlock_irqrestore(&free_entries_lock, flags);
+
#ifdef CONFIG_STACKTRACE
entry->stacktrace.max_entries = DMA_DEBUG_STACKTRACE_ENTRIES;
entry->stacktrace.entries = entry->st_entries;
save_stack_trace(&entry->stacktrace);
#endif
-out:
- spin_unlock_irqrestore(&free_entries_lock, flags);
-
return entry;
}
"list_add corruption. prev->next should be "
"next (%p), but was %p. (prev=%p).\n",
next, prev->next, prev);
+ WARN(new == prev || new == next,
+ "list_add double add: new=%p, prev=%p, next=%p.\n",
+ new, prev, next);
next->prev = new;
new->next = next;
new->prev = prev;
*/
static struct kmem_cache *radix_tree_node_cachep;
+/*
+ * The radix tree is variable-height, so an insert operation not only has
+ * to build the branch to its corresponding item, it also has to build the
+ * branch to existing items if the size has to be increased (by
+ * radix_tree_extend).
+ *
+ * The worst case is a zero height tree with just a single item at index 0,
+ * and then inserting an item at index ULONG_MAX. This requires 2 new branches
+ * of RADIX_TREE_MAX_PATH size to be created, with only the root node shared.
+ * Hence:
+ */
+#define RADIX_TREE_PRELOAD_SIZE (RADIX_TREE_MAX_PATH * 2 - 1)
+
/*
* Per-cpu pool of preloaded nodes
*/
struct radix_tree_preload {
int nr;
- struct radix_tree_node *nodes[RADIX_TREE_MAX_PATH];
+ struct radix_tree_node *nodes[RADIX_TREE_PRELOAD_SIZE];
};
static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads) = { 0, };
printk(KERN_EMERG "BUG: spinlock %s on CPU#%d, %s/%d\n",
msg, raw_smp_processor_id(),
current->comm, task_pid_nr(current));
- printk(KERN_EMERG " lock: %p, .magic: %08x, .owner: %s/%d, "
+ printk(KERN_EMERG " lock: %ps, .magic: %08x, .owner: %s/%d, "
".owner_cpu: %d\n",
lock, lock->magic,
owner ? owner->comm : "<none>",
int string_get_size(u64 size, const enum string_size_units units,
char *buf, int len)
{
- const char *units_10[] = { "B", "kB", "MB", "GB", "TB", "PB",
+ static const char *units_10[] = { "B", "kB", "MB", "GB", "TB", "PB",
"EB", "ZB", "YB", NULL};
- const char *units_2[] = {"B", "KiB", "MiB", "GiB", "TiB", "PiB",
+ static const char *units_2[] = {"B", "KiB", "MiB", "GiB", "TiB", "PiB",
"EiB", "ZiB", "YiB", NULL };
- const char **units_str[] = {
+ static const char **units_str[] = {
[STRING_UNITS_10] = units_10,
[STRING_UNITS_2] = units_2,
};
- const unsigned int divisor[] = {
+ static const unsigned int divisor[] = {
[STRING_UNITS_10] = 1000,
[STRING_UNITS_2] = 1024,
};
pstart = virt_to_phys(io_tlb_start);
pend = virt_to_phys(io_tlb_end);
- printk(KERN_INFO "Placing %luMB software IO TLB between %p - %p\n",
- bytes >> 20, io_tlb_start, io_tlb_end);
- printk(KERN_INFO "software IO TLB at phys %#llx - %#llx\n",
- (unsigned long long)pstart,
- (unsigned long long)pend);
+ printk(KERN_INFO "software IO TLB [mem %#010llx-%#010llx] (%luMB) mapped at [%p-%p]\n",
+ (unsigned long long)pstart, (unsigned long long)pend - 1,
+ bytes >> 20, io_tlb_start, io_tlb_end - 1);
}
void __init swiotlb_init_with_tbl(char *tlb, unsigned long nslabs, int verbose)
};
#define DEFINE_TEST_FAIL(test) \
- const struct test_fail test[] __initdata
+ const struct test_fail test[] __initconst
#define DECLARE_TEST_OK(type, test_type) \
test_type { \
}
#define DEFINE_TEST_OK(type, test) \
- const type test[] __initdata
+ const type test[] __initconst
#define TEST_FAIL(fn, type, fmt, test) \
{ \
/* Decimal conversion is by far the most typical, and is used
* for /proc and /sys data. This directly impacts e.g. top performance
* with many processes running. We optimize it for speed
- * using code from
- * http://www.cs.uiowa.edu/~jones/bcd/decimal.html
- * (with permission from the author, Douglas W. Jones). */
+ * using ideas described at <http://www.cs.uiowa.edu/~jones/bcd/divide.html>
+ * (with permission from the author, Douglas W. Jones).
+ */
-/* Formats correctly any integer in [0,99999].
- * Outputs from one to five digits depending on input.
- * On i386 gcc 4.1.2 -O2: ~250 bytes of code. */
+#if BITS_PER_LONG != 32 || BITS_PER_LONG_LONG != 64
+/* Formats correctly any integer in [0, 999999999] */
static noinline_for_stack
-char *put_dec_trunc(char *buf, unsigned q)
+char *put_dec_full9(char *buf, unsigned q)
{
- unsigned d3, d2, d1, d0;
- d1 = (q>>4) & 0xf;
- d2 = (q>>8) & 0xf;
- d3 = (q>>12);
-
- d0 = 6*(d3 + d2 + d1) + (q & 0xf);
- q = (d0 * 0xcd) >> 11;
- d0 = d0 - 10*q;
- *buf++ = d0 + '0'; /* least significant digit */
- d1 = q + 9*d3 + 5*d2 + d1;
- if (d1 != 0) {
- q = (d1 * 0xcd) >> 11;
- d1 = d1 - 10*q;
- *buf++ = d1 + '0'; /* next digit */
-
- d2 = q + 2*d2;
- if ((d2 != 0) || (d3 != 0)) {
- q = (d2 * 0xd) >> 7;
- d2 = d2 - 10*q;
- *buf++ = d2 + '0'; /* next digit */
-
- d3 = q + 4*d3;
- if (d3 != 0) {
- q = (d3 * 0xcd) >> 11;
- d3 = d3 - 10*q;
- *buf++ = d3 + '0'; /* next digit */
- if (q != 0)
- *buf++ = q + '0'; /* most sign. digit */
- }
- }
- }
+ unsigned r;
+ /*
+ * Possible ways to approx. divide by 10
+ * (x * 0x1999999a) >> 32 x < 1073741829 (multiply must be 64-bit)
+ * (x * 0xcccd) >> 19 x < 81920 (x < 262149 when 64-bit mul)
+ * (x * 0x6667) >> 18 x < 43699
+ * (x * 0x3334) >> 17 x < 16389
+ * (x * 0x199a) >> 16 x < 16389
+ * (x * 0x0ccd) >> 15 x < 16389
+ * (x * 0x0667) >> 14 x < 2739
+ * (x * 0x0334) >> 13 x < 1029
+ * (x * 0x019a) >> 12 x < 1029
+ * (x * 0x00cd) >> 11 x < 1029 shorter code than * 0x67 (on i386)
+ * (x * 0x0067) >> 10 x < 179
+ * (x * 0x0034) >> 9 x < 69 same
+ * (x * 0x001a) >> 8 x < 69 same
+ * (x * 0x000d) >> 7 x < 69 same, shortest code (on i386)
+ * (x * 0x0007) >> 6 x < 19
+ * See <http://www.cs.uiowa.edu/~jones/bcd/divide.html>
+ */
+ r = (q * (uint64_t)0x1999999a) >> 32;
+ *buf++ = (q - 10 * r) + '0'; /* 1 */
+ q = (r * (uint64_t)0x1999999a) >> 32;
+ *buf++ = (r - 10 * q) + '0'; /* 2 */
+ r = (q * (uint64_t)0x1999999a) >> 32;
+ *buf++ = (q - 10 * r) + '0'; /* 3 */
+ q = (r * (uint64_t)0x1999999a) >> 32;
+ *buf++ = (r - 10 * q) + '0'; /* 4 */
+ r = (q * (uint64_t)0x1999999a) >> 32;
+ *buf++ = (q - 10 * r) + '0'; /* 5 */
+ /* Now value is under 10000, can avoid 64-bit multiply */
+ q = (r * 0x199a) >> 16;
+ *buf++ = (r - 10 * q) + '0'; /* 6 */
+ r = (q * 0xcd) >> 11;
+ *buf++ = (q - 10 * r) + '0'; /* 7 */
+ q = (r * 0xcd) >> 11;
+ *buf++ = (r - 10 * q) + '0'; /* 8 */
+ *buf++ = q + '0'; /* 9 */
return buf;
}
-/* Same with if's removed. Always emits five digits */
+#endif
+
+/* Similar to above but do not pad with zeros.
+ * Code can be easily arranged to print 9 digits too, but our callers
+ * always call put_dec_full9() instead when the number has 9 decimal digits.
+ */
static noinline_for_stack
-char *put_dec_full(char *buf, unsigned q)
+char *put_dec_trunc8(char *buf, unsigned r)
{
- /* BTW, if q is in [0,9999], 8-bit ints will be enough, */
- /* but anyway, gcc produces better code with full-sized ints */
- unsigned d3, d2, d1, d0;
- d1 = (q>>4) & 0xf;
- d2 = (q>>8) & 0xf;
- d3 = (q>>12);
+ unsigned q;
+
+ /* Copy of previous function's body with added early returns */
+ q = (r * (uint64_t)0x1999999a) >> 32;
+ *buf++ = (r - 10 * q) + '0'; /* 2 */
+ if (q == 0)
+ return buf;
+ r = (q * (uint64_t)0x1999999a) >> 32;
+ *buf++ = (q - 10 * r) + '0'; /* 3 */
+ if (r == 0)
+ return buf;
+ q = (r * (uint64_t)0x1999999a) >> 32;
+ *buf++ = (r - 10 * q) + '0'; /* 4 */
+ if (q == 0)
+ return buf;
+ r = (q * (uint64_t)0x1999999a) >> 32;
+ *buf++ = (q - 10 * r) + '0'; /* 5 */
+ if (r == 0)
+ return buf;
+ q = (r * 0x199a) >> 16;
+ *buf++ = (r - 10 * q) + '0'; /* 6 */
+ if (q == 0)
+ return buf;
+ r = (q * 0xcd) >> 11;
+ *buf++ = (q - 10 * r) + '0'; /* 7 */
+ if (r == 0)
+ return buf;
+ q = (r * 0xcd) >> 11;
+ *buf++ = (r - 10 * q) + '0'; /* 8 */
+ if (q == 0)
+ return buf;
+ *buf++ = q + '0'; /* 9 */
+ return buf;
+}
- /*
- * Possible ways to approx. divide by 10
- * gcc -O2 replaces multiply with shifts and adds
- * (x * 0xcd) >> 11: 11001101 - shorter code than * 0x67 (on i386)
- * (x * 0x67) >> 10: 1100111
- * (x * 0x34) >> 9: 110100 - same
- * (x * 0x1a) >> 8: 11010 - same
- * (x * 0x0d) >> 7: 1101 - same, shortest code (on i386)
- */
- d0 = 6*(d3 + d2 + d1) + (q & 0xf);
- q = (d0 * 0xcd) >> 11;
- d0 = d0 - 10*q;
- *buf++ = d0 + '0';
- d1 = q + 9*d3 + 5*d2 + d1;
- q = (d1 * 0xcd) >> 11;
- d1 = d1 - 10*q;
- *buf++ = d1 + '0';
-
- d2 = q + 2*d2;
- q = (d2 * 0xd) >> 7;
- d2 = d2 - 10*q;
- *buf++ = d2 + '0';
-
- d3 = q + 4*d3;
- q = (d3 * 0xcd) >> 11; /* - shorter code */
- /* q = (d3 * 0x67) >> 10; - would also work */
- d3 = d3 - 10*q;
- *buf++ = d3 + '0';
- *buf++ = q + '0';
+/* There are two algorithms to print larger numbers.
+ * One is generic: divide by 1000000000 and repeatedly print
+ * groups of (up to) 9 digits. It's conceptually simple,
+ * but requires a (unsigned long long) / 1000000000 division.
+ *
+ * Second algorithm splits 64-bit unsigned long long into 16-bit chunks,
+ * manipulates them cleverly and generates groups of 4 decimal digits.
+ * It so happens that it does NOT require long long division.
+ *
+ * If long is > 32 bits, division of 64-bit values is relatively easy,
+ * and we will use the first algorithm.
+ * If long long is > 64 bits (strange architecture with VERY large long long),
+ * second algorithm can't be used, and we again use the first one.
+ *
+ * Else (if long is 32 bits and long long is 64 bits) we use second one.
+ */
- return buf;
+#if BITS_PER_LONG != 32 || BITS_PER_LONG_LONG != 64
+
+/* First algorithm: generic */
+
+static
+char *put_dec(char *buf, unsigned long long n)
+{
+ if (n >= 100*1000*1000) {
+ while (n >= 1000*1000*1000)
+ buf = put_dec_full9(buf, do_div(n, 1000*1000*1000));
+ if (n >= 100*1000*1000)
+ return put_dec_full9(buf, n);
+ }
+ return put_dec_trunc8(buf, n);
}
-/* No inlining helps gcc to use registers better */
+
+#else
+
+/* Second algorithm: valid only for 64-bit long longs */
+
static noinline_for_stack
-char *put_dec(char *buf, unsigned long long num)
+char *put_dec_full4(char *buf, unsigned q)
{
- while (1) {
- unsigned rem;
- if (num < 100000)
- return put_dec_trunc(buf, num);
- rem = do_div(num, 100000);
- buf = put_dec_full(buf, rem);
- }
+ unsigned r;
+ r = (q * 0xcccd) >> 19;
+ *buf++ = (q - 10 * r) + '0';
+ q = (r * 0x199a) >> 16;
+ *buf++ = (r - 10 * q) + '0';
+ r = (q * 0xcd) >> 11;
+ *buf++ = (q - 10 * r) + '0';
+ *buf++ = r + '0';
+ return buf;
+}
+
+/* Based on code by Douglas W. Jones found at
+ * <http://www.cs.uiowa.edu/~jones/bcd/decimal.html#sixtyfour>
+ * (with permission from the author).
+ * Performs no 64-bit division and hence should be fast on 32-bit machines.
+ */
+static
+char *put_dec(char *buf, unsigned long long n)
+{
+ uint32_t d3, d2, d1, q, h;
+
+ if (n < 100*1000*1000)
+ return put_dec_trunc8(buf, n);
+
+ d1 = ((uint32_t)n >> 16); /* implicit "& 0xffff" */
+ h = (n >> 32);
+ d2 = (h ) & 0xffff;
+ d3 = (h >> 16); /* implicit "& 0xffff" */
+
+ q = 656 * d3 + 7296 * d2 + 5536 * d1 + ((uint32_t)n & 0xffff);
+
+ buf = put_dec_full4(buf, q % 10000);
+ q = q / 10000;
+
+ d1 = q + 7671 * d3 + 9496 * d2 + 6 * d1;
+ buf = put_dec_full4(buf, d1 % 10000);
+ q = d1 / 10000;
+
+ d2 = q + 4749 * d3 + 42 * d2;
+ buf = put_dec_full4(buf, d2 % 10000);
+ q = d2 / 10000;
+
+ d3 = q + 281 * d3;
+ if (!d3)
+ goto done;
+ buf = put_dec_full4(buf, d3 % 10000);
+ q = d3 / 10000;
+ if (!q)
+ goto done;
+ buf = put_dec_full4(buf, q);
+ done:
+ while (buf[-1] == '0')
+ --buf;
+
+ return buf;
}
+#endif
+
/*
* Convert passed number to decimal string.
* Returns the length of string. On buffer overflow, returns 0.
*/
int num_to_str(char *buf, int size, unsigned long long num)
{
- char tmp[21]; /* Enough for 2^64 in decimal */
+ char tmp[sizeof(num) * 3];
int idx, len;
- len = put_dec(tmp, num) - tmp;
+ /* put_dec() may work incorrectly for num = 0 (generate "", not "0") */
+ if (num <= 9) {
+ tmp[0] = '0' + num;
+ len = 1;
+ } else {
+ len = put_dec(tmp, num) - tmp;
+ }
if (len > size)
return 0;
for (idx = 0; idx < len; ++idx)
buf[idx] = tmp[len - idx - 1];
- return len;
+ return len;
}
#define ZEROPAD 1 /* pad with zero */
char locase;
int need_pfx = ((spec.flags & SPECIAL) && spec.base != 10);
int i;
+ bool is_zero = num == 0LL;
/* locase = 0 or 0x20. ORing digits or letters with 'locase'
* produces same digits or (maybe lowercased) letters */
}
}
if (need_pfx) {
- spec.field_width--;
if (spec.base == 16)
+ spec.field_width -= 2;
+ else if (!is_zero)
spec.field_width--;
}
/* generate full string in tmp[], in reverse order */
i = 0;
- if (num == 0)
- tmp[i++] = '0';
+ if (num < spec.base)
+ tmp[i++] = digits[num] | locase;
/* Generic code, for any base:
else do {
tmp[i++] = (digits[do_div(num,base)] | locase);
}
/* "0x" / "0" prefix */
if (need_pfx) {
- if (buf < end)
- *buf = '0';
- ++buf;
+ if (spec.base == 16 || !is_zero) {
+ if (buf < end)
+ *buf = '0';
+ ++buf;
+ }
if (spec.base == 16) {
if (buf < end)
*buf = ('X' | locase);
else if (ext != 'f' && ext != 's')
sprint_symbol(sym, value);
else
- kallsyms_lookup(value, NULL, NULL, NULL, sym);
+ sprint_symbol_no_offset(sym, value);
return string(buf, end, sym, spec);
#else
}
for (i = 0; i < 4; i++) {
char temp[3]; /* hold each IP quad in reverse order */
- int digits = put_dec_trunc(temp, addr[index]) - temp;
+ int digits = put_dec_trunc8(temp, addr[index]) - temp;
if (leading_zeros) {
if (digits < 3)
*p++ = '0';
char *pointer(const char *fmt, char *buf, char *end, void *ptr,
struct printf_spec spec)
{
+ int default_width = 2 * sizeof(void *) + (spec.flags & SPECIAL ? 2 : 0);
+
if (!ptr && *fmt != 'K') {
/*
* Print (null) with the same width as a pointer so it makes
* tabular output look nice.
*/
if (spec.field_width == -1)
- spec.field_width = 2 * sizeof(void *);
+ spec.field_width = default_width;
return string(buf, end, "(null)", spec);
}
*/
if (in_irq() || in_serving_softirq() || in_nmi()) {
if (spec.field_width == -1)
- spec.field_width = 2 * sizeof(void *);
+ spec.field_width = default_width;
return string(buf, end, "pK-error", spec);
}
if (!((kptr_restrict == 0) ||
}
spec.flags |= SMALL;
if (spec.field_width == -1) {
- spec.field_width = 2 * sizeof(void *);
+ spec.field_width = default_width;
spec.flags |= ZEROPAD;
}
spec.base = 16;
benefit.
endchoice
+config CROSS_MEMORY_ATTACH
+ bool "Cross Memory Support"
+ depends on MMU
+ default y
+ help
+ Enabling this option adds the system calls process_vm_readv and
+ process_vm_writev which allow a process with the correct privileges
+ to directly read from or write to to another process's address space.
+ See the man page for more details.
+
#
# UP and nommu archs use km based percpu allocator
#
mmu-y := nommu.o
mmu-$(CONFIG_MMU) := fremap.o highmem.o madvise.o memory.o mincore.o \
mlock.o mmap.o mprotect.o mremap.o msync.o rmap.o \
- vmalloc.o pagewalk.o pgtable-generic.o \
- process_vm_access.o
+ vmalloc.o pagewalk.o pgtable-generic.o
+
+ifdef CONFIG_CROSS_MEMORY_ATTACH
+mmu-$(CONFIG_MMU) += process_vm_access.o
+endif
obj-y := filemap.o mempool.o oom_kill.o fadvise.o \
maccess.o page_alloc.o page-writeback.o \
obj-$(CONFIG_HAVE_MEMBLOCK) += memblock.o
obj-$(CONFIG_BOUNCE) += bounce.o
-obj-$(CONFIG_SWAP) += page_io.o swap_state.o swapfile.o thrash.o
+obj-$(CONFIG_SWAP) += page_io.o swap_state.o swapfile.o
obj-$(CONFIG_HAS_DMA) += dmapool.o
obj-$(CONFIG_HUGETLBFS) += hugetlb.o
obj-$(CONFIG_NUMA) += mempolicy.o
*/
static void __init link_bootmem(bootmem_data_t *bdata)
{
- struct list_head *iter;
+ bootmem_data_t *ent;
- list_for_each(iter, &bdata_list) {
- bootmem_data_t *ent;
-
- ent = list_entry(iter, bootmem_data_t, list);
- if (bdata->node_min_pfn < ent->node_min_pfn)
- break;
+ list_for_each_entry(ent, &bdata_list, list) {
+ if (bdata->node_min_pfn < ent->node_min_pfn) {
+ list_add_tail(&bdata->list, &ent->list);
+ return;
+ }
}
- list_add_tail(&bdata->list, iter);
+
+ list_add_tail(&bdata->list, &bdata_list);
}
/*
} else {
unsigned long off = 0;
- while (vec && off < BITS_PER_LONG) {
+ vec >>= start & (BITS_PER_LONG - 1);
+ while (vec) {
if (vec & 1) {
page = pfn_to_page(start + off);
__free_pages_bootmem(page, 0);
return ALIGN(base + off, align) - base;
}
-static void * __init alloc_bootmem_core(struct bootmem_data *bdata,
+static void * __init alloc_bootmem_bdata(struct bootmem_data *bdata,
unsigned long size, unsigned long align,
unsigned long goal, unsigned long limit)
{
p_bdata = bootmem_arch_preferred_node(bdata, size, align,
goal, limit);
if (p_bdata)
- return alloc_bootmem_core(p_bdata, size, align,
+ return alloc_bootmem_bdata(p_bdata, size, align,
goal, limit);
}
#endif
return NULL;
}
-static void * __init ___alloc_bootmem_nopanic(unsigned long size,
+static void * __init alloc_bootmem_core(unsigned long size,
unsigned long align,
unsigned long goal,
unsigned long limit)
bootmem_data_t *bdata;
void *region;
-restart:
region = alloc_arch_preferred_bootmem(NULL, size, align, goal, limit);
if (region)
return region;
if (limit && bdata->node_min_pfn >= PFN_DOWN(limit))
break;
- region = alloc_bootmem_core(bdata, size, align, goal, limit);
+ region = alloc_bootmem_bdata(bdata, size, align, goal, limit);
if (region)
return region;
}
+ return NULL;
+}
+
+static void * __init ___alloc_bootmem_nopanic(unsigned long size,
+ unsigned long align,
+ unsigned long goal,
+ unsigned long limit)
+{
+ void *ptr;
+
+restart:
+ ptr = alloc_bootmem_core(size, align, goal, limit);
+ if (ptr)
+ return ptr;
if (goal) {
goal = 0;
goto restart;
return ___alloc_bootmem(size, align, goal, limit);
}
-static void * __init ___alloc_bootmem_node(bootmem_data_t *bdata,
+static void * __init ___alloc_bootmem_node_nopanic(pg_data_t *pgdat,
unsigned long size, unsigned long align,
unsigned long goal, unsigned long limit)
{
void *ptr;
- ptr = alloc_arch_preferred_bootmem(bdata, size, align, goal, limit);
+again:
+ ptr = alloc_arch_preferred_bootmem(pgdat->bdata, size,
+ align, goal, limit);
if (ptr)
return ptr;
- ptr = alloc_bootmem_core(bdata, size, align, goal, limit);
+ ptr = alloc_bootmem_bdata(pgdat->bdata, size, align, goal, limit);
if (ptr)
return ptr;
- return ___alloc_bootmem(size, align, goal, limit);
+ ptr = alloc_bootmem_core(size, align, goal, limit);
+ if (ptr)
+ return ptr;
+
+ if (goal) {
+ goal = 0;
+ goto again;
+ }
+
+ return NULL;
+}
+
+void * __init __alloc_bootmem_node_nopanic(pg_data_t *pgdat, unsigned long size,
+ unsigned long align, unsigned long goal)
+{
+ if (WARN_ON_ONCE(slab_is_available()))
+ return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
+
+ return ___alloc_bootmem_node_nopanic(pgdat, size, align, goal, 0);
+}
+
+void * __init ___alloc_bootmem_node(pg_data_t *pgdat, unsigned long size,
+ unsigned long align, unsigned long goal,
+ unsigned long limit)
+{
+ void *ptr;
+
+ ptr = ___alloc_bootmem_node_nopanic(pgdat, size, align, goal, 0);
+ if (ptr)
+ return ptr;
+
+ printk(KERN_ALERT "bootmem alloc of %lu bytes failed!\n", size);
+ panic("Out of memory");
+ return NULL;
}
/**
if (WARN_ON_ONCE(slab_is_available()))
return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
- return ___alloc_bootmem_node(pgdat->bdata, size, align, goal, 0);
+ return ___alloc_bootmem_node(pgdat, size, align, goal, 0);
}
void * __init __alloc_bootmem_node_high(pg_data_t *pgdat, unsigned long size,
unsigned long new_goal;
new_goal = MAX_DMA32_PFN << PAGE_SHIFT;
- ptr = alloc_bootmem_core(pgdat->bdata, size, align,
+ ptr = alloc_bootmem_bdata(pgdat->bdata, size, align,
new_goal, 0);
if (ptr)
return ptr;
}
-#ifdef CONFIG_SPARSEMEM
-/**
- * alloc_bootmem_section - allocate boot memory from a specific section
- * @size: size of the request in bytes
- * @section_nr: sparse map section to allocate from
- *
- * Return NULL on failure.
- */
-void * __init alloc_bootmem_section(unsigned long size,
- unsigned long section_nr)
-{
- bootmem_data_t *bdata;
- unsigned long pfn, goal;
-
- pfn = section_nr_to_pfn(section_nr);
- goal = pfn << PAGE_SHIFT;
- bdata = &bootmem_node_data[early_pfn_to_nid(pfn)];
-
- return alloc_bootmem_core(bdata, size, SMP_CACHE_BYTES, goal, 0);
-}
-#endif
-
-void * __init __alloc_bootmem_node_nopanic(pg_data_t *pgdat, unsigned long size,
- unsigned long align, unsigned long goal)
-{
- void *ptr;
-
- if (WARN_ON_ONCE(slab_is_available()))
- return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
-
- ptr = alloc_arch_preferred_bootmem(pgdat->bdata, size, align, goal, 0);
- if (ptr)
- return ptr;
-
- ptr = alloc_bootmem_core(pgdat->bdata, size, align, goal, 0);
- if (ptr)
- return ptr;
-
- return __alloc_bootmem_nopanic(size, align, goal);
-}
-
#ifndef ARCH_LOW_ADDRESS_LIMIT
#define ARCH_LOW_ADDRESS_LIMIT 0xffffffffUL
#endif
if (WARN_ON_ONCE(slab_is_available()))
return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
- return ___alloc_bootmem_node(pgdat->bdata, size, align,
- goal, ARCH_LOW_ADDRESS_LIMIT);
+ return ___alloc_bootmem_node(pgdat, size, align,
+ goal, ARCH_LOW_ADDRESS_LIMIT);
}
static int cleancache_get_key(struct inode *inode,
struct cleancache_filekey *key)
{
- int (*fhfn)(struct dentry *, __u32 *fh, int *, int);
+ int (*fhfn)(struct inode *, __u32 *fh, int *, struct inode *);
int len = 0, maxlen = CLEANCACHE_KEY_MAX;
struct super_block *sb = inode->i_sb;
if (sb->s_export_op != NULL) {
fhfn = sb->s_export_op->encode_fh;
if (fhfn) {
- struct dentry d;
- d.d_inode = inode;
- len = (*fhfn)(&d, &key->u.fh[0], &maxlen, 0);
+ len = (*fhfn)(inode, &key->u.fh[0], &maxlen, NULL);
if (len <= 0 || len == 255)
return -1;
if (maxlen > CLEANCACHE_KEY_MAX)
unsigned long last_pageblock_nr = 0, pageblock_nr;
unsigned long nr_scanned = 0, nr_isolated = 0;
struct list_head *migratelist = &cc->migratepages;
- isolate_mode_t mode = ISOLATE_ACTIVE|ISOLATE_INACTIVE;
+ isolate_mode_t mode = 0;
+ struct lruvec *lruvec;
/*
* Ensure that there are not too many pages isolated from the LRU
*/
while (unlikely(too_many_isolated(zone))) {
/* async migration should just abort */
- if (!cc->sync)
+ if (cc->mode != COMPACT_SYNC)
return 0;
congestion_wait(BLK_RW_ASYNC, HZ/10);
* satisfies the allocation
*/
pageblock_nr = low_pfn >> pageblock_order;
- if (!cc->sync && last_pageblock_nr != pageblock_nr &&
+ if (cc->mode != COMPACT_SYNC &&
+ last_pageblock_nr != pageblock_nr &&
!migrate_async_suitable(get_pageblock_migratetype(page))) {
low_pfn += pageblock_nr_pages;
low_pfn = ALIGN(low_pfn, pageblock_nr_pages) - 1;
continue;
}
- if (!cc->sync)
+ if (cc->mode != COMPACT_SYNC)
mode |= ISOLATE_ASYNC_MIGRATE;
+ lruvec = mem_cgroup_page_lruvec(page, zone);
+
/* Try isolate the page */
- if (__isolate_lru_page(page, mode, 0) != 0)
+ if (__isolate_lru_page(page, mode) != 0)
continue;
VM_BUG_ON(PageTransCompound(page));
/* Successfully isolated */
- del_page_from_lru_list(zone, page, page_lru(page));
+ del_page_from_lru_list(page, lruvec, page_lru(page));
list_add(&page->lru, migratelist);
cc->nr_migratepages++;
nr_isolated++;
#endif /* CONFIG_COMPACTION || CONFIG_CMA */
#ifdef CONFIG_COMPACTION
+/*
+ * Returns true if MIGRATE_UNMOVABLE pageblock was successfully
+ * converted to MIGRATE_MOVABLE type, false otherwise.
+ */
+static bool rescue_unmovable_pageblock(struct page *page)
+{
+ unsigned long pfn, start_pfn, end_pfn;
+ struct page *start_page, *end_page;
+
+ pfn = page_to_pfn(page);
+ start_pfn = pfn & ~(pageblock_nr_pages - 1);
+ end_pfn = start_pfn + pageblock_nr_pages;
+
+ start_page = pfn_to_page(start_pfn);
+ end_page = pfn_to_page(end_pfn);
+
+ /* Do not deal with pageblocks that overlap zones */
+ if (page_zone(start_page) != page_zone(end_page))
+ return false;
+
+ for (page = start_page, pfn = start_pfn; page < end_page; pfn++,
+ page++) {
+ if (!pfn_valid_within(pfn))
+ continue;
+
+ if (PageBuddy(page)) {
+ int order = page_order(page);
+
+ pfn += (1 << order) - 1;
+ page += (1 << order) - 1;
+
+ continue;
+ } else if (page_count(page) == 0 || PageLRU(page))
+ continue;
+
+ return false;
+ }
+
+ set_pageblock_migratetype(page, MIGRATE_MOVABLE);
+ move_freepages_block(page_zone(page), page, MIGRATE_MOVABLE);
+ return true;
+}
+
+enum smt_result {
+ GOOD_AS_MIGRATION_TARGET,
+ FAIL_UNMOVABLE_TARGET,
+ FAIL_BAD_TARGET,
+};
-/* Returns true if the page is within a block suitable for migration to */
-static bool suitable_migration_target(struct page *page)
+/*
+ * Returns GOOD_AS_MIGRATION_TARGET if the page is within a block
+ * suitable for migration to, FAIL_UNMOVABLE_TARGET if the page
+ * is within a MIGRATE_UNMOVABLE block, FAIL_BAD_TARGET otherwise.
+ */
+static enum smt_result suitable_migration_target(struct page *page,
+ struct compact_control *cc)
{
int migratetype = get_pageblock_migratetype(page);
/* Don't interfere with memory hot-remove or the min_free_kbytes blocks */
if (migratetype == MIGRATE_ISOLATE || migratetype == MIGRATE_RESERVE)
- return false;
+ return FAIL_BAD_TARGET;
/* If the page is a large free page, then allow migration */
if (PageBuddy(page) && page_order(page) >= pageblock_order)
- return true;
+ return GOOD_AS_MIGRATION_TARGET;
/* If the block is MIGRATE_MOVABLE or MIGRATE_CMA, allow migration */
- if (migrate_async_suitable(migratetype))
- return true;
+ if (cc->mode != COMPACT_ASYNC_UNMOVABLE &&
+ migrate_async_suitable(migratetype))
+ return GOOD_AS_MIGRATION_TARGET;
+
+ if (cc->mode == COMPACT_ASYNC_MOVABLE &&
+ migratetype == MIGRATE_UNMOVABLE)
+ return FAIL_UNMOVABLE_TARGET;
+
+ if (cc->mode != COMPACT_ASYNC_MOVABLE &&
+ migratetype == MIGRATE_UNMOVABLE &&
+ rescue_unmovable_pageblock(page))
+ return GOOD_AS_MIGRATION_TARGET;
/* Otherwise skip the block */
- return false;
+ return FAIL_BAD_TARGET;
}
/*
zone_end_pfn = zone->zone_start_pfn + zone->spanned_pages;
+ /*
+ * isolate_freepages() may be called more than once during
+ * compact_zone_order() run and we want only the most recent
+ * count.
+ */
+ cc->nr_pageblocks_skipped = 0;
+
/*
* Isolate free pages until enough are available to migrate the
* pages on cc->migratepages. We stop searching if the migrate
for (; pfn > low_pfn && cc->nr_migratepages > nr_freepages;
pfn -= pageblock_nr_pages) {
unsigned long isolated;
+ enum smt_result ret;
if (!pfn_valid(pfn))
continue;
continue;
/* Check the block is suitable for migration */
- if (!suitable_migration_target(page))
+ ret = suitable_migration_target(page, cc);
+ if (ret != GOOD_AS_MIGRATION_TARGET) {
+ if (ret == FAIL_UNMOVABLE_TARGET)
+ cc->nr_pageblocks_skipped++;
continue;
-
+ }
/*
* Found a block suitable for isolating free pages from. Now
* we disabled interrupts, double check things are ok and
*/
isolated = 0;
spin_lock_irqsave(&zone->lock, flags);
- if (suitable_migration_target(page)) {
+ ret = suitable_migration_target(page, cc);
+ if (ret == GOOD_AS_MIGRATION_TARGET) {
end_pfn = min(pfn + pageblock_nr_pages, zone_end_pfn);
isolated = isolate_freepages_block(pfn, end_pfn,
freelist, false);
nr_freepages += isolated;
- }
+ } else if (ret == FAIL_UNMOVABLE_TARGET)
+ cc->nr_pageblocks_skipped++;
spin_unlock_irqrestore(&zone->lock, flags);
/*
nr_migrate = cc->nr_migratepages;
err = migrate_pages(&cc->migratepages, compaction_alloc,
- (unsigned long)cc, false,
- cc->sync ? MIGRATE_SYNC_LIGHT : MIGRATE_ASYNC);
+ (unsigned long)&cc->freepages, false,
+ (cc->mode == COMPACT_SYNC) ? MIGRATE_SYNC_LIGHT
+ : MIGRATE_ASYNC);
update_nr_listpages(cc);
nr_remaining = cc->nr_migratepages;
static unsigned long compact_zone_order(struct zone *zone,
int order, gfp_t gfp_mask,
- bool sync)
+ enum compact_mode mode,
+ unsigned long *nr_pageblocks_skipped)
{
struct compact_control cc = {
.nr_freepages = 0,
.order = order,
.migratetype = allocflags_to_migratetype(gfp_mask),
.zone = zone,
- .sync = sync,
+ .mode = mode,
};
+ unsigned long rc;
+
INIT_LIST_HEAD(&cc.freepages);
INIT_LIST_HEAD(&cc.migratepages);
- return compact_zone(zone, &cc);
+ rc = compact_zone(zone, &cc);
+ *nr_pageblocks_skipped = cc.nr_pageblocks_skipped;
+
+ return rc;
}
int sysctl_extfrag_threshold = 500;
struct zoneref *z;
struct zone *zone;
int rc = COMPACT_SKIPPED;
+ unsigned long nr_pageblocks_skipped;
+ enum compact_mode mode;
/*
* Check whether it is worth even starting compaction. The order check is
nodemask) {
int status;
- status = compact_zone_order(zone, order, gfp_mask, sync);
+ mode = sync ? COMPACT_SYNC : COMPACT_ASYNC_MOVABLE;
+retry:
+ status = compact_zone_order(zone, order, gfp_mask, mode,
+ &nr_pageblocks_skipped);
rc = max(status, rc);
/* If a normal allocation would succeed, stop compacting */
if (zone_watermark_ok(zone, order, low_wmark_pages(zone), 0, 0))
break;
+
+ if (rc == COMPACT_COMPLETE && mode == COMPACT_ASYNC_MOVABLE) {
+ if (nr_pageblocks_skipped) {
+ mode = COMPACT_ASYNC_UNMOVABLE;
+ goto retry;
+ }
+ }
}
return rc;
if (ok && cc->order > zone->compact_order_failed)
zone->compact_order_failed = cc->order + 1;
/* Currently async compaction is never deferred. */
- else if (!ok && cc->sync)
+ else if (!ok && cc->mode == COMPACT_SYNC)
defer_compaction(zone, cc->order);
}
{
struct compact_control cc = {
.order = order,
- .sync = false,
+ .mode = COMPACT_ASYNC_MOVABLE,
};
return __compact_pgdat(pgdat, &cc);
{
struct compact_control cc = {
.order = -1,
- .sync = true,
+ .mode = COMPACT_SYNC,
};
return __compact_pgdat(NODE_DATA(nid), &cc);
#include <linux/pagevec.h>
#include <linux/blkdev.h>
#include <linux/security.h>
-#include <linux/syscalls.h>
#include <linux/cpuset.h>
#include <linux/hardirq.h> /* for BUG_ON(!in_atomic()) only */
#include <linux/memcontrol.h>
}
EXPORT_SYMBOL(generic_file_aio_read);
-static ssize_t
-do_readahead(struct address_space *mapping, struct file *filp,
- pgoff_t index, unsigned long nr)
-{
- if (!mapping || !mapping->a_ops || !mapping->a_ops->readpage)
- return -EINVAL;
-
- force_page_cache_readahead(mapping, filp, index, nr);
- return 0;
-}
-
-SYSCALL_DEFINE(readahead)(int fd, loff_t offset, size_t count)
-{
- ssize_t ret;
- struct file *file;
-
- ret = -EBADF;
- file = fget(fd);
- if (file) {
- if (file->f_mode & FMODE_READ) {
- struct address_space *mapping = file->f_mapping;
- pgoff_t start = offset >> PAGE_CACHE_SHIFT;
- pgoff_t end = (offset + count - 1) >> PAGE_CACHE_SHIFT;
- unsigned long len = end - start + 1;
- ret = do_readahead(mapping, file, start, len);
- }
- fput(file);
- }
- return ret;
-}
-#ifdef CONFIG_HAVE_SYSCALL_WRAPPERS
-asmlinkage long SyS_readahead(long fd, loff_t offset, long count)
-{
- return SYSC_readahead((int) fd, offset, (size_t) count);
-}
-SYSCALL_ALIAS(sys_readahead, SyS_readahead);
-#endif
-
#ifdef CONFIG_MMU
/**
* page_cache_read - adds requested page to the page cache if not already there
}
EXPORT_SYMBOL(read_cache_page);
-/*
- * The logic we want is
- *
- * if suid or (sgid and xgrp)
- * remove privs
- */
-int should_remove_suid(struct dentry *dentry)
-{
- umode_t mode = dentry->d_inode->i_mode;
- int kill = 0;
-
- /* suid always must be killed */
- if (unlikely(mode & S_ISUID))
- kill = ATTR_KILL_SUID;
-
- /*
- * sgid without any exec bits is just a mandatory locking mark; leave
- * it alone. If some exec bits are set, it's a real sgid; kill it.
- */
- if (unlikely((mode & S_ISGID) && (mode & S_IXGRP)))
- kill |= ATTR_KILL_SGID;
-
- if (unlikely(kill && !capable(CAP_FSETID) && S_ISREG(mode)))
- return kill;
-
- return 0;
-}
-EXPORT_SYMBOL(should_remove_suid);
-
-static int __remove_suid(struct dentry *dentry, int kill)
-{
- struct iattr newattrs;
-
- newattrs.ia_valid = ATTR_FORCE | kill;
- return notify_change(dentry, &newattrs);
-}
-
-int file_remove_suid(struct file *file)
-{
- struct dentry *dentry = file->f_path.dentry;
- struct inode *inode = dentry->d_inode;
- int killsuid;
- int killpriv;
- int error = 0;
-
- /* Fast path for nothing security related */
- if (IS_NOSEC(inode))
- return 0;
-
- killsuid = should_remove_suid(dentry);
- killpriv = security_inode_need_killpriv(dentry);
-
- if (killpriv < 0)
- return killpriv;
- if (killpriv)
- error = security_inode_killpriv(dentry);
- if (!error && killsuid)
- error = __remove_suid(dentry, killsuid);
- if (!error && (inode->i_sb->s_flags & MS_NOSEC))
- inode->i_flags |= S_NOSEC;
-
- return error;
-}
-EXPORT_SYMBOL(file_remove_suid);
-
static size_t __iovec_copy_from_user_inatomic(char *vaddr,
const struct iovec *iov, size_t base, size_t bytes)
{
if (err)
goto out;
- file_update_time(file);
+ err = file_update_time(file);
+ if (err)
+ goto out;
/* coalesce the iovecs and go direct-to-BIO for O_DIRECT */
if (unlikely(file->f_flags & O_DIRECT)) {
if (ret)
goto out_backing;
- file_update_time(filp);
+ ret = file_update_time(filp);
+ if (ret)
+ goto out_backing;
ret = __xip_file_write (filp, buf, count, pos, ppos);
unsigned long haddr, pmd_t *pmd,
struct page *page)
{
- int ret = 0;
pgtable_t pgtable;
VM_BUG_ON(!PageCompound(page));
pgtable = pte_alloc_one(mm, haddr);
- if (unlikely(!pgtable)) {
- mem_cgroup_uncharge_page(page);
- put_page(page);
+ if (unlikely(!pgtable))
return VM_FAULT_OOM;
- }
clear_huge_page(page, haddr, HPAGE_PMD_NR);
__SetPageUptodate(page);
spin_unlock(&mm->page_table_lock);
}
- return ret;
+ return 0;
}
static inline gfp_t alloc_hugepage_gfpmask(int defrag, gfp_t extra_gfp)
put_page(page);
goto out;
}
+ if (unlikely(__do_huge_pmd_anonymous_page(mm, vma, haddr, pmd,
+ page))) {
+ mem_cgroup_uncharge_page(page);
+ put_page(page);
+ goto out;
+ }
- return __do_huge_pmd_anonymous_page(mm, vma, haddr, pmd, page);
+ return 0;
}
out:
/*
count_vm_event(THP_FAULT_FALLBACK);
ret = do_huge_pmd_wp_page_fallback(mm, vma, address,
pmd, orig_pmd, page, haddr);
+ if (ret & VM_FAULT_OOM)
+ split_huge_page(page);
put_page(page);
goto out;
}
if (unlikely(mem_cgroup_newpage_charge(new_page, mm, GFP_KERNEL))) {
put_page(new_page);
+ split_huge_page(page);
put_page(page);
ret |= VM_FAULT_OOM;
goto out;
spin_lock(&mm->page_table_lock);
put_page(page);
if (unlikely(!pmd_same(*pmd, orig_pmd))) {
+ spin_unlock(&mm->page_table_lock);
mem_cgroup_uncharge_page(new_page);
put_page(new_page);
+ goto out;
} else {
pmd_t entry;
VM_BUG_ON(!PageHead(page));
{
int i;
struct zone *zone = page_zone(page);
+ struct lruvec *lruvec;
int tail_count = 0;
/* prevent PageLRU to go away from under us, and freeze lru stats */
spin_lock_irq(&zone->lru_lock);
+ lruvec = mem_cgroup_page_lruvec(page, zone);
+
compound_lock(page);
/* complete memcg works before add pages to LRU */
mem_cgroup_split_huge_fixup(page);
BUG_ON(!PageDirty(page_tail));
BUG_ON(!PageSwapBacked(page_tail));
-
- lru_add_page_tail(zone, page, page_tail);
+ lru_add_page_tail(page, page_tail, lruvec);
}
atomic_sub(tail_count, &page->_count);
BUG_ON(atomic_read(&page->_count) <= 0);
- __dec_zone_page_state(page, NR_ANON_TRANSPARENT_HUGEPAGES);
+ __mod_zone_page_state(zone, NR_ANON_TRANSPARENT_HUGEPAGES, -1);
__mod_zone_page_state(zone, NR_ANON_PAGES, HPAGE_PMD_NR);
ClearPageCompound(page);
/* Locate each segment we overlap with, and count that overlap. */
list_for_each_entry(rg, head, link) {
- int seg_from;
- int seg_to;
+ long seg_from;
+ long seg_to;
if (rg->to <= f)
continue;
kref_get(&reservations->refs);
}
+static void resv_map_put(struct vm_area_struct *vma)
+{
+ struct resv_map *reservations = vma_resv_map(vma);
+
+ if (!reservations)
+ return;
+ kref_put(&reservations->refs, resv_map_release);
+}
+
static void hugetlb_vm_op_close(struct vm_area_struct *vma)
{
struct hstate *h = hstate_vma(vma);
reserve = (end - start) -
region_count(&reservations->regions, start, end);
- kref_put(&reservations->refs, resv_map_release);
+ resv_map_put(vma);
if (reserve) {
hugetlb_acct_memory(h, -reserve);
set_vma_resv_flags(vma, HPAGE_RESV_OWNER);
}
- if (chg < 0)
- return chg;
+ if (chg < 0) {
+ ret = chg;
+ goto out_err;
+ }
/* There must be enough pages in the subpool for the mapping */
- if (hugepage_subpool_get_pages(spool, chg))
- return -ENOSPC;
+ if (hugepage_subpool_get_pages(spool, chg)) {
+ ret = -ENOSPC;
+ goto out_err;
+ }
/*
* Check enough hugepages are available for the reservation.
ret = hugetlb_acct_memory(h, chg);
if (ret < 0) {
hugepage_subpool_put_pages(spool, chg);
- return ret;
+ goto out_err;
}
/*
if (!vma || vma->vm_flags & VM_MAYSHARE)
region_add(&inode->i_mapping->private_list, from, to);
return 0;
+out_err:
+ if (vma)
+ resv_map_put(vma);
+ return ret;
}
void hugetlb_unreserve_pages(struct inode *inode, long offset, long freed)
/*
* in mm/page_alloc.c
*/
+extern void set_pageblock_migratetype(struct page *page, int migratetype);
+extern int move_freepages_block(struct zone *zone, struct page *page,
+ int migratetype);
extern void __free_pages_bootmem(struct page *page, unsigned int order);
extern void prep_compound_page(struct page *page, unsigned long order);
#ifdef CONFIG_MEMORY_FAILURE
#endif
#if defined CONFIG_COMPACTION || defined CONFIG_CMA
+#include <linux/compaction.h>
/*
* in mm/compaction.c
unsigned long nr_migratepages; /* Number of pages to migrate */
unsigned long free_pfn; /* isolate_freepages search base */
unsigned long migrate_pfn; /* isolate_migratepages search base */
- bool sync; /* Synchronous migration */
+ enum compact_mode mode; /* Compaction mode */
int order; /* order a direct compactor needs */
int migratetype; /* MOVABLE, RECLAIMABLE etc */
struct zone *zone;
+
+ /* Number of UNMOVABLE destination pageblocks skipped during scan */
+ unsigned long nr_pageblocks_skipped;
};
unsigned long
* to determine if it's being mapped into a LOCKED vma.
* If so, mark page as mlocked.
*/
-static inline int is_mlocked_vma(struct vm_area_struct *vma, struct page *page)
+static inline int mlocked_vma_newpage(struct vm_area_struct *vma,
+ struct page *page)
{
VM_BUG_ON(PageLRU(page));
struct vm_area_struct *vma);
#endif
#else /* !CONFIG_MMU */
-static inline int is_mlocked_vma(struct vm_area_struct *v, struct page *p)
+static inline int mlocked_vma_newpage(struct vm_area_struct *v, struct page *p)
{
return 0;
}
extern u64 hwpoison_filter_flags_value;
extern u64 hwpoison_filter_memcg;
extern u32 hwpoison_filter_enable;
+
+extern unsigned long vm_mmap_pgoff(struct file *, unsigned long,
+ unsigned long, unsigned long,
+ unsigned long, unsigned long);
#include <linux/mempolicy.h>
#include <linux/page-isolation.h>
#include <linux/hugetlb.h>
+#include <linux/falloc.h>
#include <linux/sched.h>
#include <linux/ksm.h>
+#include <linux/fs.h>
/*
* Any behaviour which results in changes to the vma->vm_flags needs to
struct vm_area_struct **prev,
unsigned long start, unsigned long end)
{
- struct address_space *mapping;
- loff_t offset, endoff;
+ loff_t offset;
int error;
*prev = NULL; /* tell sys_madvise we drop mmap_sem */
if ((vma->vm_flags & (VM_SHARED|VM_WRITE)) != (VM_SHARED|VM_WRITE))
return -EACCES;
- mapping = vma->vm_file->f_mapping;
-
offset = (loff_t)(start - vma->vm_start)
+ ((loff_t)vma->vm_pgoff << PAGE_SHIFT);
- endoff = (loff_t)(end - vma->vm_start - 1)
- + ((loff_t)vma->vm_pgoff << PAGE_SHIFT);
- /* vmtruncate_range needs to take i_mutex */
+ /* filesystem's fallocate may need to take i_mutex */
up_read(¤t->mm->mmap_sem);
- error = vmtruncate_range(mapping->host, offset, endoff);
+ error = do_fallocate(vma->vm_file,
+ FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
+ offset, end - start);
down_read(¤t->mm->mmap_sem);
return error;
}
int memblock_debug __initdata_memblock;
static int memblock_can_resize __initdata_memblock;
+static int memblock_memory_in_slab __initdata_memblock = 0;
+static int memblock_reserved_in_slab __initdata_memblock = 0;
/* inline so we don't get a warning when pr_debug is compiled out */
static inline const char *memblock_type_name(struct memblock_type *type)
struct memblock_region *new_array, *old_array;
phys_addr_t old_size, new_size, addr;
int use_slab = slab_is_available();
+ int *in_slab;
/* We don't allow resizing until we know about the reserved regions
* of memory that aren't suitable for allocation
old_size = type->max * sizeof(struct memblock_region);
new_size = old_size << 1;
+ /* Retrieve the slab flag */
+ if (type == &memblock.memory)
+ in_slab = &memblock_memory_in_slab;
+ else
+ in_slab = &memblock_reserved_in_slab;
+
/* Try to find some space for it.
*
* WARNING: We assume that either slab_is_available() and we use it or
if (use_slab) {
new_array = kmalloc(new_size, GFP_KERNEL);
addr = new_array ? __pa(new_array) : 0;
- } else
+ } else {
addr = memblock_find_in_range(0, MEMBLOCK_ALLOC_ACCESSIBLE, new_size, sizeof(phys_addr_t));
+ new_array = addr ? __va(addr) : 0;
+ }
if (!addr) {
pr_err("memblock: Failed to double %s array from %ld to %ld entries !\n",
memblock_type_name(type), type->max, type->max * 2);
return -1;
}
- new_array = __va(addr);
memblock_dbg("memblock: %s array is doubled to %ld at [%#010llx-%#010llx]",
memblock_type_name(type), type->max * 2, (u64)addr, (u64)addr + new_size - 1);
type->regions = new_array;
type->max <<= 1;
- /* If we use SLAB that's it, we are done */
- if (use_slab)
- return 0;
-
- /* Add the new reserved region now. Should not fail ! */
- BUG_ON(memblock_reserve(addr, new_size));
-
- /* If the array wasn't our static init one, then free it. We only do
- * that before SLAB is available as later on, we don't know whether
- * to use kfree or free_bootmem_pages(). Shouldn't be a big deal
- * anyways
+ /* Free old array. We needn't free it if the array is the
+ * static one
*/
- if (old_array != memblock_memory_init_regions &&
- old_array != memblock_reserved_init_regions)
+ if (*in_slab)
+ kfree(old_array);
+ else if (old_array != memblock_memory_init_regions &&
+ old_array != memblock_reserved_init_regions)
memblock_free(__pa(old_array), old_size);
+ /* Reserve the new array if that comes from the memblock.
+ * Otherwise, we needn't do it
+ */
+ if (!use_slab)
+ BUG_ON(memblock_reserve(addr, new_size));
+
+ /* Update slab flag */
+ *in_slab = use_slab;
+
return 0;
}
struct cgroup_subsys mem_cgroup_subsys __read_mostly;
#define MEM_CGROUP_RECLAIM_RETRIES 5
-struct mem_cgroup *root_mem_cgroup __read_mostly;
+static struct mem_cgroup *root_mem_cgroup __read_mostly;
#ifdef CONFIG_CGROUP_MEM_RES_CTLR_SWAP
/* Turned on only when memory cgroup is enabled && really_do_swap_account = 1 */
#endif
#else
-#define do_swap_account (0)
+#define do_swap_account 0
#endif
MEM_CGROUP_STAT_RSS, /* # of pages charged as anon rss */
MEM_CGROUP_STAT_FILE_MAPPED, /* # of pages charged as file rss */
MEM_CGROUP_STAT_SWAPOUT, /* # of pages, swapped out */
- MEM_CGROUP_STAT_DATA, /* end of data requires synchronization */
MEM_CGROUP_STAT_NSTATS,
};
+static const char * const mem_cgroup_stat_names[] = {
+ "cache",
+ "rss",
+ "mapped_file",
+ "swap",
+};
+
enum mem_cgroup_events_index {
MEM_CGROUP_EVENTS_PGPGIN, /* # of pages paged in */
MEM_CGROUP_EVENTS_PGPGOUT, /* # of pages paged out */
- MEM_CGROUP_EVENTS_COUNT, /* # of pages paged in/out */
MEM_CGROUP_EVENTS_PGFAULT, /* # of page-faults */
MEM_CGROUP_EVENTS_PGMAJFAULT, /* # of major page-faults */
MEM_CGROUP_EVENTS_NSTATS,
};
+
+static const char * const mem_cgroup_events_names[] = {
+ "pgpgin",
+ "pgpgout",
+ "pgfault",
+ "pgmajfault",
+};
+
/*
* Per memcg event counter is incremented at every pagein/pageout. With THP,
* it will be incremated by the number of pages. This counter is used for
MEM_CGROUP_TARGET_NUMAINFO,
MEM_CGROUP_NTARGETS,
};
-#define THRESHOLDS_EVENTS_TARGET (128)
-#define SOFTLIMIT_EVENTS_TARGET (1024)
-#define NUMAINFO_EVENTS_TARGET (1024)
+#define THRESHOLDS_EVENTS_TARGET 128
+#define SOFTLIMIT_EVENTS_TARGET 1024
+#define NUMAINFO_EVENTS_TARGET 1024
struct mem_cgroup_stat_cpu {
long count[MEM_CGROUP_STAT_NSTATS];
unsigned long events[MEM_CGROUP_EVENTS_NSTATS];
+ unsigned long nr_page_events;
unsigned long targets[MEM_CGROUP_NTARGETS];
};
struct mem_cgroup_reclaim_iter reclaim_iter[DEF_PRIORITY + 1];
- struct zone_reclaim_stat reclaim_stat;
struct rb_node tree_node; /* RB tree node */
unsigned long long usage_in_excess;/* Set to the value by which */
/* the soft limit is exceeded*/
/* For threshold */
struct mem_cgroup_threshold_ary {
- /* An array index points to threshold just below usage. */
+ /* An array index points to threshold just below or equal to usage. */
int current_threshold;
/* Size of entries[] */
unsigned int size;
*/
struct rcu_head rcu_freeing;
/*
- * But when using vfree(), that cannot be done at
- * interrupt time, so we must then queue the work.
+ * We also need some space for a worker in deferred freeing.
+ * By the time we call it, rcu_freeing is no longer in use.
*/
struct work_struct work_freeing;
};
/*
* percpu counter.
*/
- struct mem_cgroup_stat_cpu *stat;
+ struct mem_cgroup_stat_cpu __percpu *stat;
/*
* used when a cpu is offlined or other synchronizations
* See mem_cgroup_read_stat().
* Maximum loops in mem_cgroup_hierarchical_reclaim(), used for soft
* limit reclaim to prevent infinite loops, if they ever occur.
*/
-#define MEM_CGROUP_MAX_RECLAIM_LOOPS (100)
-#define MEM_CGROUP_MAX_SOFT_LIMIT_RECLAIM_LOOPS (2)
+#define MEM_CGROUP_MAX_RECLAIM_LOOPS 100
+#define MEM_CGROUP_MAX_SOFT_LIMIT_RECLAIM_LOOPS 2
enum charge_type {
MEM_CGROUP_CHARGE_TYPE_CACHE = 0,
#define _MEM (0)
#define _MEMSWAP (1)
#define _OOM_TYPE (2)
-#define MEMFILE_PRIVATE(x, val) (((x) << 16) | (val))
-#define MEMFILE_TYPE(val) (((val) >> 16) & 0xffff)
+#define MEMFILE_PRIVATE(x, val) ((x) << 16 | (val))
+#define MEMFILE_TYPE(val) ((val) >> 16 & 0xffff)
#define MEMFILE_ATTR(val) ((val) & 0xffff)
/* Used for OOM nofiier */
#define OOM_CONTROL (0)
{
if (mem_cgroup_sockets_enabled) {
struct mem_cgroup *memcg;
+ struct cg_proto *cg_proto;
BUG_ON(!sk->sk_prot->proto_cgroup);
rcu_read_lock();
memcg = mem_cgroup_from_task(current);
- if (!mem_cgroup_is_root(memcg)) {
+ cg_proto = sk->sk_prot->proto_cgroup(memcg);
+ if (!mem_cgroup_is_root(memcg) && memcg_proto_active(cg_proto)) {
mem_cgroup_get(memcg);
- sk->sk_cgrp = sk->sk_prot->proto_cgroup(memcg);
+ sk->sk_cgrp = cg_proto;
}
rcu_read_unlock();
}
#endif /* CONFIG_INET */
#endif /* CONFIG_CGROUP_MEM_RES_CTLR_KMEM */
+#if defined(CONFIG_INET) && defined(CONFIG_CGROUP_MEM_RES_CTLR_KMEM)
+static void disarm_sock_keys(struct mem_cgroup *memcg)
+{
+ if (!memcg_proto_activated(&memcg->tcp_mem.cg_proto))
+ return;
+ static_key_slow_dec(&memcg_socket_limit_enabled);
+}
+#else
+static void disarm_sock_keys(struct mem_cgroup *memcg)
+{
+}
+#endif
+
static void drain_all_stock_async(struct mem_cgroup *memcg);
static struct mem_cgroup_per_zone *
nr_pages = -nr_pages; /* for event */
}
- __this_cpu_add(memcg->stat->events[MEM_CGROUP_EVENTS_COUNT], nr_pages);
+ __this_cpu_add(memcg->stat->nr_page_events, nr_pages);
preempt_enable();
}
unsigned long
+mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru)
+{
+ struct mem_cgroup_per_zone *mz;
+
+ mz = container_of(lruvec, struct mem_cgroup_per_zone, lruvec);
+ return mz->lru_size[lru];
+}
+
+static unsigned long
mem_cgroup_zone_nr_lru_pages(struct mem_cgroup *memcg, int nid, int zid,
unsigned int lru_mask)
{
{
unsigned long val, next;
- val = __this_cpu_read(memcg->stat->events[MEM_CGROUP_EVENTS_COUNT]);
+ val = __this_cpu_read(memcg->stat->nr_page_events);
next = __this_cpu_read(memcg->stat->targets[target]);
/* from time_after() in jiffies.h */
if ((long)next - (long)val < 0) {
/**
* mem_cgroup_zone_lruvec - get the lru list vector for a zone and memcg
* @zone: zone of the wanted lruvec
- * @mem: memcg of the wanted lruvec
+ * @memcg: memcg of the wanted lruvec
*
* Returns the lru list vector holding pages for the given @zone and
* @mem. This can be the global zone lruvec, if the memory controller
*/
/**
- * mem_cgroup_lru_add_list - account for adding an lru page and return lruvec
- * @zone: zone of the page
+ * mem_cgroup_page_lruvec - return lruvec for adding an lru page
* @page: the page
- * @lru: current lru
- *
- * This function accounts for @page being added to @lru, and returns
- * the lruvec for the given @zone and the memcg @page is charged to.
- *
- * The callsite is then responsible for physically linking the page to
- * the returned lruvec->lists[@lru].
+ * @zone: zone of the page
*/
-struct lruvec *mem_cgroup_lru_add_list(struct zone *zone, struct page *page,
- enum lru_list lru)
+struct lruvec *mem_cgroup_page_lruvec(struct page *page, struct zone *zone)
{
struct mem_cgroup_per_zone *mz;
struct mem_cgroup *memcg;
memcg = pc->mem_cgroup;
/*
- * Surreptitiously switch any uncharged page to root:
+ * Surreptitiously switch any uncharged offlist page to root:
* an uncharged page off lru does nothing to secure
* its former mem_cgroup from sudden removal.
*
* under page_cgroup lock: between them, they make all uses
* of pc->mem_cgroup safe.
*/
- if (!PageCgroupUsed(pc) && memcg != root_mem_cgroup)
+ if (!PageLRU(page) && !PageCgroupUsed(pc) && memcg != root_mem_cgroup)
pc->mem_cgroup = memcg = root_mem_cgroup;
mz = page_cgroup_zoneinfo(memcg, page);
- /* compound_order() is stabilized through lru_lock */
- mz->lru_size[lru] += 1 << compound_order(page);
return &mz->lruvec;
}
/**
- * mem_cgroup_lru_del_list - account for removing an lru page
- * @page: the page
- * @lru: target lru
- *
- * This function accounts for @page being removed from @lru.
+ * mem_cgroup_update_lru_size - account for adding or removing an lru page
+ * @lruvec: mem_cgroup per zone lru vector
+ * @lru: index of lru list the page is sitting on
+ * @nr_pages: positive when adding or negative when removing
*
- * The callsite is then responsible for physically unlinking
- * @page->lru.
+ * This function must be called when a page is added to or removed from an
+ * lru list.
*/
-void mem_cgroup_lru_del_list(struct page *page, enum lru_list lru)
+void mem_cgroup_update_lru_size(struct lruvec *lruvec, enum lru_list lru,
+ int nr_pages)
{
struct mem_cgroup_per_zone *mz;
- struct mem_cgroup *memcg;
- struct page_cgroup *pc;
+ unsigned long *lru_size;
if (mem_cgroup_disabled())
return;
- pc = lookup_page_cgroup(page);
- memcg = pc->mem_cgroup;
- VM_BUG_ON(!memcg);
- mz = page_cgroup_zoneinfo(memcg, page);
- /* huge page split is done under lru_lock. so, we have no races. */
- VM_BUG_ON(mz->lru_size[lru] < (1 << compound_order(page)));
- mz->lru_size[lru] -= 1 << compound_order(page);
-}
-
-void mem_cgroup_lru_del(struct page *page)
-{
- mem_cgroup_lru_del_list(page, page_lru(page));
-}
-
-/**
- * mem_cgroup_lru_move_lists - account for moving a page between lrus
- * @zone: zone of the page
- * @page: the page
- * @from: current lru
- * @to: target lru
- *
- * This function accounts for @page being moved between the lrus @from
- * and @to, and returns the lruvec for the given @zone and the memcg
- * @page is charged to.
- *
- * The callsite is then responsible for physically relinking
- * @page->lru to the returned lruvec->lists[@to].
- */
-struct lruvec *mem_cgroup_lru_move_lists(struct zone *zone,
- struct page *page,
- enum lru_list from,
- enum lru_list to)
-{
- /* XXX: Optimize this, especially for @from == @to */
- mem_cgroup_lru_del_list(page, from);
- return mem_cgroup_lru_add_list(zone, page, to);
+ mz = container_of(lruvec, struct mem_cgroup_per_zone, lruvec);
+ lru_size = mz->lru_size + lru;
+ *lru_size += nr_pages;
+ VM_BUG_ON((long)(*lru_size) < 0);
}
/*
* Checks whether given mem is same or in the root_mem_cgroup's
* hierarchy subtree
*/
+bool __mem_cgroup_same_or_subtree(const struct mem_cgroup *root_memcg,
+ struct mem_cgroup *memcg)
+{
+ if (root_memcg == memcg)
+ return true;
+ if (!root_memcg->use_hierarchy)
+ return false;
+ return css_is_ancestor(&memcg->css, &root_memcg->css);
+}
+
static bool mem_cgroup_same_or_subtree(const struct mem_cgroup *root_memcg,
- struct mem_cgroup *memcg)
+ struct mem_cgroup *memcg)
{
- if (root_memcg != memcg) {
- return (root_memcg->use_hierarchy &&
- css_is_ancestor(&memcg->css, &root_memcg->css));
- }
+ bool ret;
- return true;
+ rcu_read_lock();
+ ret = __mem_cgroup_same_or_subtree(root_memcg, memcg);
+ rcu_read_unlock();
+ return ret;
}
int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *memcg)
return ret;
}
-int mem_cgroup_inactive_anon_is_low(struct mem_cgroup *memcg, struct zone *zone)
+int mem_cgroup_inactive_anon_is_low(struct lruvec *lruvec)
{
unsigned long inactive_ratio;
- int nid = zone_to_nid(zone);
- int zid = zone_idx(zone);
unsigned long inactive;
unsigned long active;
unsigned long gb;
- inactive = mem_cgroup_zone_nr_lru_pages(memcg, nid, zid,
- BIT(LRU_INACTIVE_ANON));
- active = mem_cgroup_zone_nr_lru_pages(memcg, nid, zid,
- BIT(LRU_ACTIVE_ANON));
+ inactive = mem_cgroup_get_lru_size(lruvec, LRU_INACTIVE_ANON);
+ active = mem_cgroup_get_lru_size(lruvec, LRU_ACTIVE_ANON);
gb = (inactive + active) >> (30 - PAGE_SHIFT);
if (gb)
return inactive * inactive_ratio < active;
}
-int mem_cgroup_inactive_file_is_low(struct mem_cgroup *memcg, struct zone *zone)
+int mem_cgroup_inactive_file_is_low(struct lruvec *lruvec)
{
unsigned long active;
unsigned long inactive;
- int zid = zone_idx(zone);
- int nid = zone_to_nid(zone);
- inactive = mem_cgroup_zone_nr_lru_pages(memcg, nid, zid,
- BIT(LRU_INACTIVE_FILE));
- active = mem_cgroup_zone_nr_lru_pages(memcg, nid, zid,
- BIT(LRU_ACTIVE_FILE));
+ inactive = mem_cgroup_get_lru_size(lruvec, LRU_INACTIVE_FILE);
+ active = mem_cgroup_get_lru_size(lruvec, LRU_ACTIVE_FILE);
return (active > inactive);
}
-struct zone_reclaim_stat *mem_cgroup_get_reclaim_stat(struct mem_cgroup *memcg,
- struct zone *zone)
-{
- int nid = zone_to_nid(zone);
- int zid = zone_idx(zone);
- struct mem_cgroup_per_zone *mz = mem_cgroup_zoneinfo(memcg, nid, zid);
-
- return &mz->reclaim_stat;
-}
-
-struct zone_reclaim_stat *
-mem_cgroup_get_reclaim_stat_from_page(struct page *page)
-{
- struct page_cgroup *pc;
- struct mem_cgroup_per_zone *mz;
-
- if (mem_cgroup_disabled())
- return NULL;
-
- pc = lookup_page_cgroup(page);
- if (!PageCgroupUsed(pc))
- return NULL;
- /* Ensure pc->mem_cgroup is visible after reading PCG_USED. */
- smp_rmb();
- mz = page_cgroup_zoneinfo(pc->mem_cgroup, page);
- return &mz->reclaim_stat;
-}
-
#define mem_cgroup_from_res_counter(counter, member) \
container_of(counter, struct mem_cgroup, member)
* unused nodes. But scan_nodes is lazily updated and may not cotain
* enough new information. We need to do double check.
*/
-bool mem_cgroup_reclaimable(struct mem_cgroup *memcg, bool noswap)
+static bool mem_cgroup_reclaimable(struct mem_cgroup *memcg, bool noswap)
{
int nid;
return 0;
}
-bool mem_cgroup_reclaimable(struct mem_cgroup *memcg, bool noswap)
+static bool mem_cgroup_reclaimable(struct mem_cgroup *memcg, bool noswap)
{
return test_mem_cgroup_node_reclaimable(memcg, 0, noswap);
}
/*
* try to call OOM killer. returns false if we should exit memory-reclaim loop.
*/
-bool mem_cgroup_handle_oom(struct mem_cgroup *memcg, gfp_t mask, int order)
+static bool mem_cgroup_handle_oom(struct mem_cgroup *memcg, gfp_t mask,
+ int order)
{
struct oom_wait_info owait;
bool locked, need_to_kill;
unsigned int nr_pages;
struct work_struct work;
unsigned long flags;
-#define FLUSHING_CACHED_CHARGE (0)
+#define FLUSHING_CACHED_CHARGE 0
};
static DEFINE_PER_CPU(struct memcg_stock_pcp, memcg_stock);
static DEFINE_MUTEX(percpu_charge_mutex);
int i;
spin_lock(&memcg->pcp_counter_lock);
- for (i = 0; i < MEM_CGROUP_STAT_DATA; i++) {
+ for (i = 0; i < MEM_CGROUP_STAT_NSTATS; i++) {
long x = per_cpu(memcg->stat->count[i], cpu);
per_cpu(memcg->stat->count[i], cpu) = 0;
}
}
+/*
+ * Cancel chrages in this cgroup....doesn't propagate to parent cgroup.
+ * This is useful when moving usage to parent cgroup.
+ */
+static void __mem_cgroup_cancel_local_charge(struct mem_cgroup *memcg,
+ unsigned int nr_pages)
+{
+ unsigned long bytes = nr_pages * PAGE_SIZE;
+
+ if (mem_cgroup_is_root(memcg))
+ return;
+
+ res_counter_uncharge_until(&memcg->res, memcg->res.parent, bytes);
+ if (do_swap_account)
+ res_counter_uncharge_until(&memcg->memsw,
+ memcg->memsw.parent, bytes);
+}
+
/*
* A helper function to get mem_cgroup from ID. must be called under
* rcu_read_lock(). The caller must check css_is_removed() or some if
{
struct page_cgroup *pc = lookup_page_cgroup(page);
struct zone *uninitialized_var(zone);
+ struct lruvec *lruvec;
bool was_on_lru = false;
bool anon;
zone = page_zone(page);
spin_lock_irq(&zone->lru_lock);
if (PageLRU(page)) {
+ lruvec = mem_cgroup_zone_lruvec(zone, pc->mem_cgroup);
ClearPageLRU(page);
- del_page_from_lru_list(zone, page, page_lru(page));
+ del_page_from_lru_list(page, lruvec, page_lru(page));
was_on_lru = true;
}
}
if (lrucare) {
if (was_on_lru) {
+ lruvec = mem_cgroup_zone_lruvec(zone, pc->mem_cgroup);
VM_BUG_ON(PageLRU(page));
SetPageLRU(page);
- add_page_to_lru_list(zone, page, page_lru(page));
+ add_page_to_lru_list(page, lruvec, page_lru(page));
}
spin_unlock_irq(&zone->lru_lock);
}
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-#define PCGF_NOCOPY_AT_SPLIT ((1 << PCG_LOCK) | (1 << PCG_MIGRATION))
+#define PCGF_NOCOPY_AT_SPLIT (1 << PCG_LOCK | 1 << PCG_MIGRATION)
/*
* Because tail pages are not marked as "used", set it. We're under
* zone->lru_lock, 'splitting on pmd' and compound_lock.
* @pc: page_cgroup of the page.
* @from: mem_cgroup which the page is moved from.
* @to: mem_cgroup which the page is moved to. @from != @to.
- * @uncharge: whether we should call uncharge and css_put against @from.
*
* The caller must confirm following.
* - page is not on LRU (isolate_page() is useful.)
* - compound_lock is held when nr_pages > 1
*
- * This function doesn't do "charge" nor css_get to new cgroup. It should be
- * done by a caller(__mem_cgroup_try_charge would be useful). If @uncharge is
- * true, this function does "uncharge" from old cgroup, but it doesn't if
- * @uncharge is false, so a caller should do "uncharge".
+ * This function doesn't do "charge" to new cgroup and doesn't do "uncharge"
+ * from old cgroup.
*/
static int mem_cgroup_move_account(struct page *page,
unsigned int nr_pages,
struct page_cgroup *pc,
struct mem_cgroup *from,
- struct mem_cgroup *to,
- bool uncharge)
+ struct mem_cgroup *to)
{
unsigned long flags;
int ret;
preempt_enable();
}
mem_cgroup_charge_statistics(from, anon, -nr_pages);
- if (uncharge)
- /* This is not "cancel", but cancel_charge does all we need. */
- __mem_cgroup_cancel_charge(from, nr_pages);
/* caller should have done css_get */
pc->mem_cgroup = to;
struct mem_cgroup *child,
gfp_t gfp_mask)
{
- struct cgroup *cg = child->css.cgroup;
- struct cgroup *pcg = cg->parent;
struct mem_cgroup *parent;
unsigned int nr_pages;
unsigned long uninitialized_var(flags);
int ret;
/* Is ROOT ? */
- if (!pcg)
+ if (mem_cgroup_is_root(child))
return -EINVAL;
ret = -EBUSY;
nr_pages = hpage_nr_pages(page);
- parent = mem_cgroup_from_cont(pcg);
- ret = __mem_cgroup_try_charge(NULL, gfp_mask, nr_pages, &parent, false);
- if (ret)
- goto put_back;
+ parent = parent_mem_cgroup(child);
+ /*
+ * If no parent, move charges to root cgroup.
+ */
+ if (!parent)
+ parent = root_mem_cgroup;
if (nr_pages > 1)
flags = compound_lock_irqsave(page);
- ret = mem_cgroup_move_account(page, nr_pages, pc, child, parent, true);
- if (ret)
- __mem_cgroup_cancel_charge(parent, nr_pages);
+ ret = mem_cgroup_move_account(page, nr_pages,
+ pc, child, parent);
+ if (!ret)
+ __mem_cgroup_cancel_local_charge(child, nr_pages);
if (nr_pages > 1)
compound_unlock_irqrestore(page, flags);
-put_back:
putback_lru_page(page);
put:
put_page(page);
*/
if (do_swap_account && PageSwapCache(page)) {
swp_entry_t ent = {.val = page_private(page)};
- struct mem_cgroup *swap_memcg;
- unsigned short id;
-
- id = swap_cgroup_record(ent, 0);
- rcu_read_lock();
- swap_memcg = mem_cgroup_lookup(id);
- if (swap_memcg) {
- /*
- * This recorded memcg can be obsolete one. So, avoid
- * calling css_tryget
- */
- if (!mem_cgroup_is_root(swap_memcg))
- res_counter_uncharge(&swap_memcg->memsw,
- PAGE_SIZE);
- mem_cgroup_swap_statistics(swap_memcg, false);
- mem_cgroup_put(swap_memcg);
- }
- rcu_read_unlock();
+ mem_cgroup_uncharge_swap(ent);
}
/*
* At swapin, we may charge account against cgroup which has no tasks.
* @entry: swap entry to be moved
* @from: mem_cgroup which the entry is moved from
* @to: mem_cgroup which the entry is moved to
- * @need_fixup: whether we should fixup res_counters and refcounts.
*
* It succeeds only when the swap_cgroup's record for this entry is the same
* as the mem_cgroup's id of @from.
* both res and memsw, and called css_get().
*/
static int mem_cgroup_move_swap_account(swp_entry_t entry,
- struct mem_cgroup *from, struct mem_cgroup *to, bool need_fixup)
+ struct mem_cgroup *from, struct mem_cgroup *to)
{
unsigned short old_id, new_id;
* swap-in, the refcount of @to might be decreased to 0.
*/
mem_cgroup_get(to);
- if (need_fixup) {
- if (!mem_cgroup_is_root(from))
- res_counter_uncharge(&from->memsw, PAGE_SIZE);
- mem_cgroup_put(from);
- /*
- * we charged both to->res and to->memsw, so we should
- * uncharge to->res.
- */
- if (!mem_cgroup_is_root(to))
- res_counter_uncharge(&to->res, PAGE_SIZE);
- }
return 0;
}
return -EINVAL;
}
#else
static inline int mem_cgroup_move_swap_account(swp_entry_t entry,
- struct mem_cgroup *from, struct mem_cgroup *to, bool need_fixup)
+ struct mem_cgroup *from, struct mem_cgroup *to)
{
return -EINVAL;
}
void mem_cgroup_replace_page_cache(struct page *oldpage,
struct page *newpage)
{
- struct mem_cgroup *memcg;
+ struct mem_cgroup *memcg = NULL;
struct page_cgroup *pc;
enum charge_type type = MEM_CGROUP_CHARGE_TYPE_CACHE;
pc = lookup_page_cgroup(oldpage);
/* fix accounting on old pages */
lock_page_cgroup(pc);
- memcg = pc->mem_cgroup;
- mem_cgroup_charge_statistics(memcg, false, -1);
- ClearPageCgroupUsed(pc);
+ if (PageCgroupUsed(pc)) {
+ memcg = pc->mem_cgroup;
+ mem_cgroup_charge_statistics(memcg, false, -1);
+ ClearPageCgroupUsed(pc);
+ }
unlock_page_cgroup(pc);
+ /*
+ * When called from shmem_replace_page(), in some cases the
+ * oldpage has already been charged, and in some cases not.
+ */
+ if (!memcg)
+ return;
+
if (PageSwapBacked(oldpage))
type = MEM_CGROUP_CHARGE_TYPE_SHMEM;
goto move_account;
}
-int mem_cgroup_force_empty_write(struct cgroup *cont, unsigned int event)
+static int mem_cgroup_force_empty_write(struct cgroup *cont, unsigned int event)
{
return mem_cgroup_force_empty(mem_cgroup_from_cont(cont), true);
}
}
#endif
-
-/* For read statistics */
-enum {
- MCS_CACHE,
- MCS_RSS,
- MCS_FILE_MAPPED,
- MCS_PGPGIN,
- MCS_PGPGOUT,
- MCS_SWAP,
- MCS_PGFAULT,
- MCS_PGMAJFAULT,
- MCS_INACTIVE_ANON,
- MCS_ACTIVE_ANON,
- MCS_INACTIVE_FILE,
- MCS_ACTIVE_FILE,
- MCS_UNEVICTABLE,
- NR_MCS_STAT,
-};
-
-struct mcs_total_stat {
- s64 stat[NR_MCS_STAT];
-};
-
-struct {
- char *local_name;
- char *total_name;
-} memcg_stat_strings[NR_MCS_STAT] = {
- {"cache", "total_cache"},
- {"rss", "total_rss"},
- {"mapped_file", "total_mapped_file"},
- {"pgpgin", "total_pgpgin"},
- {"pgpgout", "total_pgpgout"},
- {"swap", "total_swap"},
- {"pgfault", "total_pgfault"},
- {"pgmajfault", "total_pgmajfault"},
- {"inactive_anon", "total_inactive_anon"},
- {"active_anon", "total_active_anon"},
- {"inactive_file", "total_inactive_file"},
- {"active_file", "total_active_file"},
- {"unevictable", "total_unevictable"}
-};
-
-
-static void
-mem_cgroup_get_local_stat(struct mem_cgroup *memcg, struct mcs_total_stat *s)
-{
- s64 val;
-
- /* per cpu stat */
- val = mem_cgroup_read_stat(memcg, MEM_CGROUP_STAT_CACHE);
- s->stat[MCS_CACHE] += val * PAGE_SIZE;
- val = mem_cgroup_read_stat(memcg, MEM_CGROUP_STAT_RSS);
- s->stat[MCS_RSS] += val * PAGE_SIZE;
- val = mem_cgroup_read_stat(memcg, MEM_CGROUP_STAT_FILE_MAPPED);
- s->stat[MCS_FILE_MAPPED] += val * PAGE_SIZE;
- val = mem_cgroup_read_events(memcg, MEM_CGROUP_EVENTS_PGPGIN);
- s->stat[MCS_PGPGIN] += val;
- val = mem_cgroup_read_events(memcg, MEM_CGROUP_EVENTS_PGPGOUT);
- s->stat[MCS_PGPGOUT] += val;
- if (do_swap_account) {
- val = mem_cgroup_read_stat(memcg, MEM_CGROUP_STAT_SWAPOUT);
- s->stat[MCS_SWAP] += val * PAGE_SIZE;
- }
- val = mem_cgroup_read_events(memcg, MEM_CGROUP_EVENTS_PGFAULT);
- s->stat[MCS_PGFAULT] += val;
- val = mem_cgroup_read_events(memcg, MEM_CGROUP_EVENTS_PGMAJFAULT);
- s->stat[MCS_PGMAJFAULT] += val;
-
- /* per zone stat */
- val = mem_cgroup_nr_lru_pages(memcg, BIT(LRU_INACTIVE_ANON));
- s->stat[MCS_INACTIVE_ANON] += val * PAGE_SIZE;
- val = mem_cgroup_nr_lru_pages(memcg, BIT(LRU_ACTIVE_ANON));
- s->stat[MCS_ACTIVE_ANON] += val * PAGE_SIZE;
- val = mem_cgroup_nr_lru_pages(memcg, BIT(LRU_INACTIVE_FILE));
- s->stat[MCS_INACTIVE_FILE] += val * PAGE_SIZE;
- val = mem_cgroup_nr_lru_pages(memcg, BIT(LRU_ACTIVE_FILE));
- s->stat[MCS_ACTIVE_FILE] += val * PAGE_SIZE;
- val = mem_cgroup_nr_lru_pages(memcg, BIT(LRU_UNEVICTABLE));
- s->stat[MCS_UNEVICTABLE] += val * PAGE_SIZE;
-}
-
-static void
-mem_cgroup_get_total_stat(struct mem_cgroup *memcg, struct mcs_total_stat *s)
-{
- struct mem_cgroup *iter;
-
- for_each_mem_cgroup_tree(iter, memcg)
- mem_cgroup_get_local_stat(iter, s);
-}
-
#ifdef CONFIG_NUMA
-static int mem_control_numa_stat_show(struct seq_file *m, void *arg)
+static int mem_control_numa_stat_show(struct cgroup *cont, struct cftype *cft,
+ struct seq_file *m)
{
int nid;
unsigned long total_nr, file_nr, anon_nr, unevictable_nr;
unsigned long node_nr;
- struct cgroup *cont = m->private;
struct mem_cgroup *memcg = mem_cgroup_from_cont(cont);
total_nr = mem_cgroup_nr_lru_pages(memcg, LRU_ALL);
}
#endif /* CONFIG_NUMA */
+static const char * const mem_cgroup_lru_names[] = {
+ "inactive_anon",
+ "active_anon",
+ "inactive_file",
+ "active_file",
+ "unevictable",
+};
+
+static inline void mem_cgroup_lru_names_not_uptodate(void)
+{
+ BUILD_BUG_ON(ARRAY_SIZE(mem_cgroup_lru_names) != NR_LRU_LISTS);
+}
+
static int mem_control_stat_show(struct cgroup *cont, struct cftype *cft,
- struct cgroup_map_cb *cb)
+ struct seq_file *m)
{
struct mem_cgroup *memcg = mem_cgroup_from_cont(cont);
- struct mcs_total_stat mystat;
- int i;
-
- memset(&mystat, 0, sizeof(mystat));
- mem_cgroup_get_local_stat(memcg, &mystat);
+ struct mem_cgroup *mi;
+ unsigned int i;
-
- for (i = 0; i < NR_MCS_STAT; i++) {
- if (i == MCS_SWAP && !do_swap_account)
+ for (i = 0; i < MEM_CGROUP_STAT_NSTATS; i++) {
+ if (i == MEM_CGROUP_STAT_SWAPOUT && !do_swap_account)
continue;
- cb->fill(cb, memcg_stat_strings[i].local_name, mystat.stat[i]);
+ seq_printf(m, "%s %ld\n", mem_cgroup_stat_names[i],
+ mem_cgroup_read_stat(memcg, i) * PAGE_SIZE);
}
+ for (i = 0; i < MEM_CGROUP_EVENTS_NSTATS; i++)
+ seq_printf(m, "%s %lu\n", mem_cgroup_events_names[i],
+ mem_cgroup_read_events(memcg, i));
+
+ for (i = 0; i < NR_LRU_LISTS; i++)
+ seq_printf(m, "%s %lu\n", mem_cgroup_lru_names[i],
+ mem_cgroup_nr_lru_pages(memcg, BIT(i)) * PAGE_SIZE);
+
/* Hierarchical information */
{
unsigned long long limit, memsw_limit;
memcg_get_hierarchical_limit(memcg, &limit, &memsw_limit);
- cb->fill(cb, "hierarchical_memory_limit", limit);
+ seq_printf(m, "hierarchical_memory_limit %llu\n", limit);
if (do_swap_account)
- cb->fill(cb, "hierarchical_memsw_limit", memsw_limit);
+ seq_printf(m, "hierarchical_memsw_limit %llu\n",
+ memsw_limit);
}
- memset(&mystat, 0, sizeof(mystat));
- mem_cgroup_get_total_stat(memcg, &mystat);
- for (i = 0; i < NR_MCS_STAT; i++) {
- if (i == MCS_SWAP && !do_swap_account)
+ for (i = 0; i < MEM_CGROUP_STAT_NSTATS; i++) {
+ long long val = 0;
+
+ if (i == MEM_CGROUP_STAT_SWAPOUT && !do_swap_account)
continue;
- cb->fill(cb, memcg_stat_strings[i].total_name, mystat.stat[i]);
+ for_each_mem_cgroup_tree(mi, memcg)
+ val += mem_cgroup_read_stat(mi, i) * PAGE_SIZE;
+ seq_printf(m, "total_%s %lld\n", mem_cgroup_stat_names[i], val);
+ }
+
+ for (i = 0; i < MEM_CGROUP_EVENTS_NSTATS; i++) {
+ unsigned long long val = 0;
+
+ for_each_mem_cgroup_tree(mi, memcg)
+ val += mem_cgroup_read_events(mi, i);
+ seq_printf(m, "total_%s %llu\n",
+ mem_cgroup_events_names[i], val);
+ }
+
+ for (i = 0; i < NR_LRU_LISTS; i++) {
+ unsigned long long val = 0;
+
+ for_each_mem_cgroup_tree(mi, memcg)
+ val += mem_cgroup_nr_lru_pages(mi, BIT(i)) * PAGE_SIZE;
+ seq_printf(m, "total_%s %llu\n", mem_cgroup_lru_names[i], val);
}
#ifdef CONFIG_DEBUG_VM
{
int nid, zid;
struct mem_cgroup_per_zone *mz;
+ struct zone_reclaim_stat *rstat;
unsigned long recent_rotated[2] = {0, 0};
unsigned long recent_scanned[2] = {0, 0};
for_each_online_node(nid)
for (zid = 0; zid < MAX_NR_ZONES; zid++) {
mz = mem_cgroup_zoneinfo(memcg, nid, zid);
+ rstat = &mz->lruvec.reclaim_stat;
- recent_rotated[0] +=
- mz->reclaim_stat.recent_rotated[0];
- recent_rotated[1] +=
- mz->reclaim_stat.recent_rotated[1];
- recent_scanned[0] +=
- mz->reclaim_stat.recent_scanned[0];
- recent_scanned[1] +=
- mz->reclaim_stat.recent_scanned[1];
+ recent_rotated[0] += rstat->recent_rotated[0];
+ recent_rotated[1] += rstat->recent_rotated[1];
+ recent_scanned[0] += rstat->recent_scanned[0];
+ recent_scanned[1] += rstat->recent_scanned[1];
}
- cb->fill(cb, "recent_rotated_anon", recent_rotated[0]);
- cb->fill(cb, "recent_rotated_file", recent_rotated[1]);
- cb->fill(cb, "recent_scanned_anon", recent_scanned[0]);
- cb->fill(cb, "recent_scanned_file", recent_scanned[1]);
+ seq_printf(m, "recent_rotated_anon %lu\n", recent_rotated[0]);
+ seq_printf(m, "recent_rotated_file %lu\n", recent_rotated[1]);
+ seq_printf(m, "recent_scanned_anon %lu\n", recent_scanned[0]);
+ seq_printf(m, "recent_scanned_file %lu\n", recent_scanned[1]);
}
#endif
usage = mem_cgroup_usage(memcg, swap);
/*
- * current_threshold points to threshold just below usage.
+ * current_threshold points to threshold just below or equal to usage.
* If it's not true, a threshold was crossed after last
* call of __mem_cgroup_threshold().
*/
/* Find current threshold */
new->current_threshold = -1;
for (i = 0; i < size; i++) {
- if (new->entries[i].threshold < usage) {
+ if (new->entries[i].threshold <= usage) {
/*
* new->current_threshold will not be used until
* rcu_assign_pointer(), so it's safe to increment
* it here.
*/
++new->current_threshold;
- }
+ } else
+ break;
}
/* Free old spare buffer and save old primary buffer as spare */
continue;
new->entries[j] = thresholds->primary->entries[i];
- if (new->entries[j].threshold < usage) {
+ if (new->entries[j].threshold <= usage) {
/*
* new->current_threshold will not be used
* until rcu_assign_pointer(), so it's safe to increment
return 0;
}
-#ifdef CONFIG_NUMA
-static const struct file_operations mem_control_numa_stat_file_operations = {
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static int mem_control_numa_stat_open(struct inode *unused, struct file *file)
-{
- struct cgroup *cont = file->f_dentry->d_parent->d_fsdata;
-
- file->f_op = &mem_control_numa_stat_file_operations;
- return single_open(file, mem_control_numa_stat_show, cont);
-}
-#endif /* CONFIG_NUMA */
-
#ifdef CONFIG_CGROUP_MEM_RES_CTLR_KMEM
static int memcg_init_kmem(struct mem_cgroup *memcg, struct cgroup_subsys *ss)
{
},
{
.name = "stat",
- .read_map = mem_control_stat_show,
+ .read_seq_string = mem_control_stat_show,
},
{
.name = "force_empty",
#ifdef CONFIG_NUMA
{
.name = "numa_stat",
- .open = mem_control_numa_stat_open,
- .mode = S_IRUGO,
+ .read_seq_string = mem_control_numa_stat_show,
},
#endif
#ifdef CONFIG_CGROUP_MEM_RES_CTLR_SWAP
{
struct mem_cgroup_per_node *pn;
struct mem_cgroup_per_zone *mz;
- enum lru_list lru;
int zone, tmp = node;
/*
* This routine is called against possible nodes.
for (zone = 0; zone < MAX_NR_ZONES; zone++) {
mz = &pn->zoneinfo[zone];
- for_each_lru(lru)
- INIT_LIST_HEAD(&mz->lruvec.lists[lru]);
+ lruvec_init(&mz->lruvec, &NODE_DATA(node)->node_zones[zone]);
mz->usage_in_excess = 0;
mz->on_tree = false;
mz->memcg = memcg;
}
/*
- * Helpers for freeing a vzalloc()ed mem_cgroup by RCU,
+ * Helpers for freeing a kmalloc()ed/vzalloc()ed mem_cgroup by RCU,
* but in process context. The work_freeing structure is overlaid
* on the rcu_freeing structure, which itself is overlaid on memsw.
*/
-static void vfree_work(struct work_struct *work)
+static void free_work(struct work_struct *work)
{
struct mem_cgroup *memcg;
+ int size = sizeof(struct mem_cgroup);
memcg = container_of(work, struct mem_cgroup, work_freeing);
- vfree(memcg);
+ /*
+ * We need to make sure that (at least for now), the jump label
+ * destruction code runs outside of the cgroup lock. This is because
+ * get_online_cpus(), which is called from the static_branch update,
+ * can't be called inside the cgroup_lock. cpusets are the ones
+ * enforcing this dependency, so if they ever change, we might as well.
+ *
+ * schedule_work() will guarantee this happens. Be careful if you need
+ * to move this code around, and make sure it is outside
+ * the cgroup_lock.
+ */
+ disarm_sock_keys(memcg);
+ if (size < PAGE_SIZE)
+ kfree(memcg);
+ else
+ vfree(memcg);
}
-static void vfree_rcu(struct rcu_head *rcu_head)
+
+static void free_rcu(struct rcu_head *rcu_head)
{
struct mem_cgroup *memcg;
memcg = container_of(rcu_head, struct mem_cgroup, rcu_freeing);
- INIT_WORK(&memcg->work_freeing, vfree_work);
+ INIT_WORK(&memcg->work_freeing, free_work);
schedule_work(&memcg->work_freeing);
}
free_mem_cgroup_per_zone_info(memcg, node);
free_percpu(memcg->stat);
- if (sizeof(struct mem_cgroup) < PAGE_SIZE)
- kfree_rcu(memcg, rcu_freeing);
- else
- call_rcu(&memcg->rcu_freeing, vfree_rcu);
+ call_rcu(&memcg->rcu_freeing, free_rcu);
}
static void mem_cgroup_get(struct mem_cgroup *memcg)
return NULL;
if (PageAnon(page)) {
/* we don't move shared anon */
- if (!move_anon() || page_mapcount(page) > 2)
+ if (!move_anon())
return NULL;
} else if (!move_file())
/* we ignore mapcount for file pages */
return page;
}
+#ifdef CONFIG_SWAP
static struct page *mc_handle_swap_pte(struct vm_area_struct *vma,
unsigned long addr, pte_t ptent, swp_entry_t *entry)
{
- int usage_count;
struct page *page = NULL;
swp_entry_t ent = pte_to_swp_entry(ptent);
if (!move_anon() || non_swap_entry(ent))
return NULL;
- usage_count = mem_cgroup_count_swap_user(ent, &page);
- if (usage_count > 1) { /* we don't move shared anon */
- if (page)
- put_page(page);
- return NULL;
- }
+ /*
+ * Because lookup_swap_cache() updates some statistics counter,
+ * we call find_get_page() with swapper_space directly.
+ */
+ page = find_get_page(&swapper_space, ent.val);
if (do_swap_account)
entry->val = ent.val;
return page;
}
+#else
+static struct page *mc_handle_swap_pte(struct vm_area_struct *vma,
+ unsigned long addr, pte_t ptent, swp_entry_t *entry)
+{
+ return NULL;
+}
+#endif
static struct page *mc_handle_file_pte(struct vm_area_struct *vma,
unsigned long addr, pte_t ptent, swp_entry_t *entry)
{
struct page *page = NULL;
- struct inode *inode;
struct address_space *mapping;
pgoff_t pgoff;
if (!move_file())
return NULL;
- inode = vma->vm_file->f_path.dentry->d_inode;
mapping = vma->vm_file->f_mapping;
if (pte_none(ptent))
pgoff = linear_page_index(vma, addr);
if (!isolate_lru_page(page)) {
pc = lookup_page_cgroup(page);
if (!mem_cgroup_move_account(page, HPAGE_PMD_NR,
- pc, mc.from, mc.to,
- false)) {
+ pc, mc.from, mc.to)) {
mc.precharge -= HPAGE_PMD_NR;
mc.moved_charge += HPAGE_PMD_NR;
}
goto put;
pc = lookup_page_cgroup(page);
if (!mem_cgroup_move_account(page, 1, pc,
- mc.from, mc.to, false)) {
+ mc.from, mc.to)) {
mc.precharge--;
/* we uncharge from mc.from later. */
mc.moved_charge++;
break;
case MC_TARGET_SWAP:
ent = target.ent;
- if (!mem_cgroup_move_swap_account(ent,
- mc.from, mc.to, false)) {
+ if (!mem_cgroup_move_swap_account(ent, mc.from, mc.to)) {
mc.precharge--;
/* we fixup refcnts and charges later. */
mc.moved_swap++;
if (mm) {
if (mc.to)
mem_cgroup_move_charge(mm);
- put_swap_token(mm);
mmput(mm);
}
if (mc.to)
*/
if (!get_page_unless_zero(compound_head(p))) {
if (PageHuge(p)) {
- pr_info("get_any_page: %#lx free huge page\n", pfn);
+ pr_info("%s: %#lx free huge page\n", __func__, pfn);
ret = dequeue_hwpoisoned_huge_page(compound_head(p));
} else if (is_free_buddy_page(p)) {
- pr_info("get_any_page: %#lx free buddy page\n", pfn);
+ pr_info("%s: %#lx free buddy page\n", __func__, pfn);
/* Set hwpoison bit while page is still isolated */
SetPageHWPoison(p);
ret = 0;
} else {
- pr_info("get_any_page: %#lx: unknown zero refcount page type %lx\n",
- pfn, p->flags);
+ pr_info("%s: %#lx: unknown zero refcount page type %lx\n",
+ __func__, pfn, p->flags);
ret = -EIO;
}
} else {
delayacct_set_flag(DELAYACCT_PF_SWAPIN);
page = lookup_swap_cache(entry);
if (!page) {
- grab_swap_token(mm); /* Contend for token _before_ read-in */
page = swapin_readahead(entry,
GFP_HIGHUSER_MOVABLE, vma, address);
if (!page) {
}
locked = lock_page_or_retry(page, mm, flags);
+
delayacct_clear_flag(DELAYACCT_PF_SWAPIN);
if (!locked) {
ret |= VM_FAULT_RETRY;
if (unlikely(is_vm_hugetlb_page(vma)))
return hugetlb_fault(mm, vma, address, flags);
+retry:
pgd = pgd_offset(mm, address);
pud = pud_alloc(mm, pgd, address);
if (!pud)
pmd, flags);
} else {
pmd_t orig_pmd = *pmd;
+ int ret;
+
barrier();
if (pmd_trans_huge(orig_pmd)) {
if (flags & FAULT_FLAG_WRITE &&
!pmd_write(orig_pmd) &&
- !pmd_trans_splitting(orig_pmd))
- return do_huge_pmd_wp_page(mm, vma, address,
- pmd, orig_pmd);
+ !pmd_trans_splitting(orig_pmd)) {
+ ret = do_huge_pmd_wp_page(mm, vma, address, pmd,
+ orig_pmd);
+ /*
+ * If COW results in an oom, the huge pmd will
+ * have been split, so retry the fault on the
+ * pte for a smaller charge.
+ */
+ if (unlikely(ret & VM_FAULT_OOM))
+ goto retry;
+ return ret;
+ }
return 0;
}
}
res->end = start + size - 1;
res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
if (request_resource(&iomem_resource, res) < 0) {
- printk("System RAM resource %llx - %llx cannot be added\n",
- (unsigned long long)res->start, (unsigned long long)res->end);
+ printk("System RAM resource %pR cannot be added\n", res);
kfree(res);
res = NULL;
}
online_pages_range);
if (ret) {
mutex_unlock(&zonelists_mutex);
- printk(KERN_DEBUG "online_pages %lx at %lx failed\n",
- nr_pages, pfn);
+ printk(KERN_DEBUG "online_pages [mem %#010llx-%#010llx] failed\n",
+ (unsigned long long) pfn << PAGE_SHIFT,
+ (((unsigned long long) pfn + nr_pages)
+ << PAGE_SHIFT) - 1);
memory_notify(MEM_CANCEL_ONLINE, &arg);
unlock_memory_hotplug();
return ret;
return 0;
failed_removal:
- printk(KERN_INFO "memory offlining %lx to %lx failed\n",
- start_pfn, end_pfn);
+ printk(KERN_INFO "memory offlining [mem %#010llx-%#010llx] failed\n",
+ (unsigned long long) start_pfn << PAGE_SHIFT,
+ ((unsigned long long) end_pfn << PAGE_SHIFT) - 1);
memory_notify(MEM_CANCEL_OFFLINE, &arg);
/* pushback to free area */
undo_isolate_page_range(start_pfn, end_pfn, MIGRATE_MOVABLE);
{
if (!pol)
return;
- if (!mpol_store_user_nodemask(pol) && step == 0 &&
+ if (!mpol_store_user_nodemask(pol) && step == MPOL_REBIND_ONCE &&
nodes_equal(pol->w.cpuset_mems_allowed, *newmask))
return;
*
* Returns the number of page that could not be moved.
*/
-int do_migrate_pages(struct mm_struct *mm,
- const nodemask_t *from_nodes, const nodemask_t *to_nodes, int flags)
+int do_migrate_pages(struct mm_struct *mm, const nodemask_t *from,
+ const nodemask_t *to, int flags)
{
int busy = 0;
int err;
down_read(&mm->mmap_sem);
- err = migrate_vmas(mm, from_nodes, to_nodes, flags);
+ err = migrate_vmas(mm, from, to, flags);
if (err)
goto out;
* moved to an empty node, then there is nothing left worth migrating.
*/
- tmp = *from_nodes;
+ tmp = *from;
while (!nodes_empty(tmp)) {
int s,d;
int source = -1;
int dest = 0;
for_each_node_mask(s, tmp) {
- d = node_remap(s, *from_nodes, *to_nodes);
+
+ /*
+ * do_migrate_pages() tries to maintain the relative
+ * node relationship of the pages established between
+ * threads and memory areas.
+ *
+ * However if the number of source nodes is not equal to
+ * the number of destination nodes we can not preserve
+ * this node relative relationship. In that case, skip
+ * copying memory from a node that is in the destination
+ * mask.
+ *
+ * Example: [2,3,4] -> [3,4,5] moves everything.
+ * [0-7] - > [3,4,5] moves only 0,1,2,6,7.
+ */
+
+ if ((nodes_weight(*from) != nodes_weight(*to)) &&
+ (node_isset(s, *to)))
+ continue;
+
+ d = node_remap(s, *from, *to);
if (s == d)
continue;
{
}
-int do_migrate_pages(struct mm_struct *mm,
- const nodemask_t *from_nodes, const nodemask_t *to_nodes, int flags)
+int do_migrate_pages(struct mm_struct *mm, const nodemask_t *from,
+ const nodemask_t *to, int flags)
{
return -ENOSYS;
}
* The caller must hold down_write(¤t->mm->mmap_sem).
*/
-static unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
+unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
unsigned long len, unsigned long prot,
unsigned long flags, unsigned long pgoff)
{
struct mm_struct * mm = current->mm;
struct inode *inode;
vm_flags_t vm_flags;
- int error;
- unsigned long reqprot = prot;
/*
* Does the application expect PROT_READ to imply PROT_EXEC?
}
}
- error = security_file_mmap(file, reqprot, prot, flags, addr, 0);
- if (error)
- return error;
-
return mmap_region(file, addr, len, flags, vm_flags, pgoff);
}
-unsigned long do_mmap(struct file *file, unsigned long addr,
- unsigned long len, unsigned long prot,
- unsigned long flag, unsigned long offset)
-{
- if (unlikely(offset + PAGE_ALIGN(len) < offset))
- return -EINVAL;
- if (unlikely(offset & ~PAGE_MASK))
- return -EINVAL;
- return do_mmap_pgoff(file, addr, len, prot, flag, offset >> PAGE_SHIFT);
-}
-EXPORT_SYMBOL(do_mmap);
-
-unsigned long vm_mmap(struct file *file, unsigned long addr,
- unsigned long len, unsigned long prot,
- unsigned long flag, unsigned long offset)
-{
- unsigned long ret;
- struct mm_struct *mm = current->mm;
-
- down_write(&mm->mmap_sem);
- ret = do_mmap(file, addr, len, prot, flag, offset);
- up_write(&mm->mmap_sem);
- return ret;
-}
-EXPORT_SYMBOL(vm_mmap);
-
SYSCALL_DEFINE6(mmap_pgoff, unsigned long, addr, unsigned long, len,
unsigned long, prot, unsigned long, flags,
unsigned long, fd, unsigned long, pgoff)
flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
- down_write(¤t->mm->mmap_sem);
- retval = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
- up_write(¤t->mm->mmap_sem);
-
+ retval = vm_mmap_pgoff(file, addr, len, prot, flags, pgoff);
if (file)
fput(file);
out:
if (addr & ~PAGE_MASK)
return -EINVAL;
- return arch_rebalance_pgtables(addr, len);
+ addr = arch_rebalance_pgtables(addr, len);
+ error = security_mmap_addr(addr);
+ return error ? error : addr;
}
EXPORT_SYMBOL(get_unmapped_area);
{
struct vm_area_struct *vma = NULL;
- if (mm) {
- /* Check the cache first. */
- /* (Cache hit rate is typically around 35%.) */
- vma = mm->mmap_cache;
- if (!(vma && vma->vm_end > addr && vma->vm_start <= addr)) {
- struct rb_node * rb_node;
-
- rb_node = mm->mm_rb.rb_node;
- vma = NULL;
-
- while (rb_node) {
- struct vm_area_struct * vma_tmp;
-
- vma_tmp = rb_entry(rb_node,
- struct vm_area_struct, vm_rb);
-
- if (vma_tmp->vm_end > addr) {
- vma = vma_tmp;
- if (vma_tmp->vm_start <= addr)
- break;
- rb_node = rb_node->rb_left;
- } else
- rb_node = rb_node->rb_right;
- }
- if (vma)
- mm->mmap_cache = vma;
+ if (WARN_ON_ONCE(!mm)) /* Remove this in linux-3.6 */
+ return NULL;
+
+ /* Check the cache first. */
+ /* (Cache hit rate is typically around 35%.) */
+ vma = mm->mmap_cache;
+ if (!(vma && vma->vm_end > addr && vma->vm_start <= addr)) {
+ struct rb_node *rb_node;
+
+ rb_node = mm->mm_rb.rb_node;
+ vma = NULL;
+
+ while (rb_node) {
+ struct vm_area_struct *vma_tmp;
+
+ vma_tmp = rb_entry(rb_node,
+ struct vm_area_struct, vm_rb);
+
+ if (vma_tmp->vm_end > addr) {
+ vma = vma_tmp;
+ if (vma_tmp->vm_start <= addr)
+ break;
+ rb_node = rb_node->rb_left;
+ } else
+ rb_node = rb_node->rb_right;
}
+ if (vma)
+ mm->mmap_cache = vma;
}
return vma;
}
return -ENOMEM;
address &= PAGE_MASK;
- error = security_file_mmap(NULL, 0, 0, 0, address, 1);
+ error = security_mmap_addr(address);
if (error)
return error;
return 0;
}
-EXPORT_SYMBOL(do_munmap);
int vm_munmap(unsigned long start, size_t len)
{
if (!len)
return addr;
- error = security_file_mmap(NULL, 0, 0, 0, addr, 1);
- if (error)
- return error;
-
flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags;
error = get_unmapped_area(NULL, addr, len, 0, MAP_FIXED);
vma->vm_ops = &special_mapping_vmops;
vma->vm_private_data = pages;
- ret = security_file_mmap(NULL, 0, 0, 0, vma->vm_start, 1);
- if (ret)
- goto out;
-
ret = insert_vm_struct(mm, vma);
if (ret)
goto out;
return 1;
}
#endif /* CONFIG_ARCH_HAS_HOLES_MEMORYMODEL */
+
+void lruvec_init(struct lruvec *lruvec, struct zone *zone)
+{
+ enum lru_list lru;
+
+ memset(lruvec, 0, sizeof(struct lruvec));
+
+ for_each_lru(lru)
+ INIT_LIST_HEAD(&lruvec->lists[lru]);
+
+#ifdef CONFIG_CGROUP_MEM_RES_CTLR
+ lruvec->zone = zone;
+#endif
+}
if ((addr <= new_addr) && (addr+old_len) > new_addr)
goto out;
- ret = security_file_mmap(NULL, 0, 0, 0, new_addr, 1);
- if (ret)
- goto out;
-
ret = do_munmap(mm, new_addr, new_len);
if (ret)
goto out;
* MREMAP_FIXED option added 5-Dec-1999 by Benjamin LaHaise
* This option implies MREMAP_MAYMOVE.
*/
-unsigned long do_mremap(unsigned long addr,
- unsigned long old_len, unsigned long new_len,
- unsigned long flags, unsigned long new_addr)
+SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
+ unsigned long, new_len, unsigned long, flags,
+ unsigned long, new_addr)
{
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
unsigned long ret = -EINVAL;
unsigned long charged = 0;
+ down_write(¤t->mm->mmap_sem);
+
if (flags & ~(MREMAP_FIXED | MREMAP_MAYMOVE))
goto out;
goto out;
}
- ret = security_file_mmap(NULL, 0, 0, 0, new_addr, 1);
- if (ret)
- goto out;
ret = move_vma(vma, addr, old_len, new_len, new_addr);
}
out:
if (ret & ~PAGE_MASK)
vm_unacct_memory(charged);
- return ret;
-}
-
-SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
- unsigned long, new_len, unsigned long, flags,
- unsigned long, new_addr)
-{
- unsigned long ret;
-
- down_write(¤t->mm->mmap_sem);
- ret = do_mremap(addr, old_len, new_len, flags, new_addr);
up_write(¤t->mm->mmap_sem);
return ret;
}
return ___alloc_bootmem(size, align, goal, limit);
}
-/**
- * __alloc_bootmem_node - allocate boot memory from a specific node
- * @pgdat: node to allocate from
- * @size: size of the request in bytes
- * @align: alignment of the region
- * @goal: preferred starting address of the region
- *
- * The goal is dropped if it can not be satisfied and the allocation will
- * fall back to memory below @goal.
- *
- * Allocation may fall back to any node in the system if the specified node
- * can not hold the requested memory.
- *
- * The function panics if the request can not be satisfied.
- */
-void * __init __alloc_bootmem_node(pg_data_t *pgdat, unsigned long size,
- unsigned long align, unsigned long goal)
+static void * __init ___alloc_bootmem_node_nopanic(pg_data_t *pgdat,
+ unsigned long size,
+ unsigned long align,
+ unsigned long goal,
+ unsigned long limit)
{
void *ptr;
- if (WARN_ON_ONCE(slab_is_available()))
- return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
-
again:
ptr = __alloc_memory_core_early(pgdat->node_id, size, align,
- goal, -1ULL);
+ goal, limit);
if (ptr)
return ptr;
ptr = __alloc_memory_core_early(MAX_NUMNODES, size, align,
- goal, -1ULL);
- if (!ptr && goal) {
+ goal, limit);
+ if (ptr)
+ return ptr;
+
+ if (goal) {
goal = 0;
goto again;
}
- return ptr;
+
+ return NULL;
}
-void * __init __alloc_bootmem_node_high(pg_data_t *pgdat, unsigned long size,
+void * __init __alloc_bootmem_node_nopanic(pg_data_t *pgdat, unsigned long size,
unsigned long align, unsigned long goal)
{
- return __alloc_bootmem_node(pgdat, size, align, goal);
+ if (WARN_ON_ONCE(slab_is_available()))
+ return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
+
+ return ___alloc_bootmem_node_nopanic(pgdat, size, align, goal, 0);
}
-#ifdef CONFIG_SPARSEMEM
-/**
- * alloc_bootmem_section - allocate boot memory from a specific section
- * @size: size of the request in bytes
- * @section_nr: sparse map section to allocate from
- *
- * Return NULL on failure.
- */
-void * __init alloc_bootmem_section(unsigned long size,
- unsigned long section_nr)
+void * __init ___alloc_bootmem_node(pg_data_t *pgdat, unsigned long size,
+ unsigned long align, unsigned long goal,
+ unsigned long limit)
{
- unsigned long pfn, goal, limit;
+ void *ptr;
- pfn = section_nr_to_pfn(section_nr);
- goal = pfn << PAGE_SHIFT;
- limit = section_nr_to_pfn(section_nr + 1) << PAGE_SHIFT;
+ ptr = ___alloc_bootmem_node_nopanic(pgdat, size, align, goal, limit);
+ if (ptr)
+ return ptr;
- return __alloc_memory_core_early(early_pfn_to_nid(pfn), size,
- SMP_CACHE_BYTES, goal, limit);
+ printk(KERN_ALERT "bootmem alloc of %lu bytes failed!\n", size);
+ panic("Out of memory");
+ return NULL;
}
-#endif
-void * __init __alloc_bootmem_node_nopanic(pg_data_t *pgdat, unsigned long size,
+/**
+ * __alloc_bootmem_node - allocate boot memory from a specific node
+ * @pgdat: node to allocate from
+ * @size: size of the request in bytes
+ * @align: alignment of the region
+ * @goal: preferred starting address of the region
+ *
+ * The goal is dropped if it can not be satisfied and the allocation will
+ * fall back to memory below @goal.
+ *
+ * Allocation may fall back to any node in the system if the specified node
+ * can not hold the requested memory.
+ *
+ * The function panics if the request can not be satisfied.
+ */
+void * __init __alloc_bootmem_node(pg_data_t *pgdat, unsigned long size,
unsigned long align, unsigned long goal)
{
- void *ptr;
-
if (WARN_ON_ONCE(slab_is_available()))
return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
- ptr = __alloc_memory_core_early(pgdat->node_id, size, align,
- goal, -1ULL);
- if (ptr)
- return ptr;
+ return ___alloc_bootmem_node(pgdat, size, align, goal, 0);
+}
- return __alloc_bootmem_nopanic(size, align, goal);
+void * __init __alloc_bootmem_node_high(pg_data_t *pgdat, unsigned long size,
+ unsigned long align, unsigned long goal)
+{
+ return __alloc_bootmem_node(pgdat, size, align, goal);
}
#ifndef ARCH_LOW_ADDRESS_LIMIT
void * __init __alloc_bootmem_low_node(pg_data_t *pgdat, unsigned long size,
unsigned long align, unsigned long goal)
{
- void *ptr;
-
if (WARN_ON_ONCE(slab_is_available()))
return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
- ptr = __alloc_memory_core_early(pgdat->node_id, size, align,
- goal, ARCH_LOW_ADDRESS_LIMIT);
- if (ptr)
- return ptr;
-
- return __alloc_memory_core_early(MAX_NUMNODES, size, align,
- goal, ARCH_LOW_ADDRESS_LIMIT);
+ return ___alloc_bootmem_node(pgdat, size, align, goal,
+ ARCH_LOW_ADDRESS_LIMIT);
}
unsigned long *_capabilities)
{
unsigned long capabilities, rlen;
- unsigned long reqprot = prot;
int ret;
/* do the simple checks first */
}
/* allow the security API to have its say */
- ret = security_file_mmap(file, reqprot, prot, flags, addr, 0);
+ ret = security_mmap_addr(addr);
if (ret < 0)
return ret;
/*
* handle mapping creation for uClinux
*/
-static unsigned long do_mmap_pgoff(struct file *file,
+unsigned long do_mmap_pgoff(struct file *file,
unsigned long addr,
unsigned long len,
unsigned long prot,
return -ENOMEM;
}
-unsigned long do_mmap(struct file *file, unsigned long addr,
- unsigned long len, unsigned long prot,
- unsigned long flag, unsigned long offset)
-{
- if (unlikely(offset + PAGE_ALIGN(len) < offset))
- return -EINVAL;
- if (unlikely(offset & ~PAGE_MASK))
- return -EINVAL;
- return do_mmap_pgoff(file, addr, len, prot, flag, offset >> PAGE_SHIFT);
-}
-EXPORT_SYMBOL(do_mmap);
-
-unsigned long vm_mmap(struct file *file, unsigned long addr,
- unsigned long len, unsigned long prot,
- unsigned long flag, unsigned long offset)
-{
- unsigned long ret;
- struct mm_struct *mm = current->mm;
-
- down_write(&mm->mmap_sem);
- ret = do_mmap(file, addr, len, prot, flag, offset);
- up_write(&mm->mmap_sem);
- return ret;
-}
-EXPORT_SYMBOL(vm_mmap);
-
SYSCALL_DEFINE6(mmap_pgoff, unsigned long, addr, unsigned long, len,
unsigned long, prot, unsigned long, flags,
unsigned long, fd, unsigned long, pgoff)
flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
- down_write(¤t->mm->mmap_sem);
- retval = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
- up_write(¤t->mm->mmap_sem);
+ ret = vm_mmap_pgoff(file, addr, len, prot, flags, pgoff);
if (file)
fput(file);
* predictable as possible. The goal is to return the highest value for the
* task consuming the most memory to avoid subsequent oom failures.
*/
-unsigned int oom_badness(struct task_struct *p, struct mem_cgroup *memcg,
- const nodemask_t *nodemask, unsigned long totalpages)
+unsigned long oom_badness(struct task_struct *p, struct mem_cgroup *memcg,
+ const nodemask_t *nodemask, unsigned long totalpages)
{
- long points;
+ unsigned long points;
if (oom_unkillable_task(p, memcg, nodemask))
return 0;
return 0;
}
- /*
- * The memory controller may have a limit of 0 bytes, so avoid a divide
- * by zero, if necessary.
- */
- if (!totalpages)
- totalpages = 1;
-
/*
* The baseline for the badness score is the proportion of RAM that each
* task's rss, pagetable and swap space use.
*/
- points = get_mm_rss(p->mm) + p->mm->nr_ptes;
- points += get_mm_counter(p->mm, MM_SWAPENTS);
-
- points *= 1000;
- points /= totalpages;
+ points = get_mm_rss(p->mm) + p->mm->nr_ptes +
+ get_mm_counter(p->mm, MM_SWAPENTS);
task_unlock(p);
/*
* implementation used by LSMs.
*/
if (has_capability_noaudit(p, CAP_SYS_ADMIN))
- points -= 30;
+ points -= 30 * totalpages / 1000;
/*
* /proc/pid/oom_score_adj ranges from -1000 to +1000 such that it may
* either completely disable oom killing or always prefer a certain
* task.
*/
- points += p->signal->oom_score_adj;
+ points += p->signal->oom_score_adj * totalpages / 1000;
/*
- * Never return 0 for an eligible task that may be killed since it's
- * possible that no single user task uses more than 0.1% of memory and
- * no single admin tasks uses more than 3.0%.
+ * Never return 0 for an eligible task regardless of the root bonus and
+ * oom_score_adj (oom_score_adj can't be OOM_SCORE_ADJ_MIN here).
*/
- if (points <= 0)
- return 1;
- return (points < 1000) ? points : 1000;
+ return points ? points : 1;
}
/*
{
struct task_struct *g, *p;
struct task_struct *chosen = NULL;
- *ppoints = 0;
+ unsigned long chosen_points = 0;
do_each_thread(g, p) {
unsigned int points;
*/
if (p == current) {
chosen = p;
- *ppoints = 1000;
+ chosen_points = ULONG_MAX;
} else if (!force_kill) {
/*
* If this task is not being ptraced on exit,
}
points = oom_badness(p, memcg, nodemask, totalpages);
- if (points > *ppoints) {
+ if (points > chosen_points) {
chosen = p;
- *ppoints = points;
+ chosen_points = points;
}
} while_each_thread(g, p);
+ *ppoints = chosen_points * 1000 / totalpages;
return chosen;
}
}
check_panic_on_oom(CONSTRAINT_MEMCG, gfp_mask, order, NULL);
- limit = mem_cgroup_get_limit(memcg) >> PAGE_SHIFT;
+ limit = mem_cgroup_get_limit(memcg) >> PAGE_SHIFT ? : 1;
read_lock(&tasklist_lock);
p = select_bad_process(&points, limit, memcg, NULL, false);
if (p && PTR_ERR(p) != -1UL)
int page_group_by_mobility_disabled __read_mostly;
-static void set_pageblock_migratetype(struct page *page, int migratetype)
+void set_pageblock_migratetype(struct page *page, int migratetype)
{
if (unlikely(page_group_by_mobility_disabled))
return pages_moved;
}
-static int move_freepages_block(struct zone *zone, struct page *page,
- int migratetype)
+int move_freepages_block(struct zone *zone, struct page *page,
+ int migratetype)
{
unsigned long start_pfn, end_pfn;
struct page *start_page, *end_page;
#ifdef CONFIG_HUGETLB_PAGE_SIZE_VARIABLE
-/* Return a sensible default order for the pageblock size. */
-static inline int pageblock_default_order(void)
-{
- if (HPAGE_SHIFT > PAGE_SHIFT)
- return HUGETLB_PAGE_ORDER;
-
- return MAX_ORDER-1;
-}
-
/* Initialise the number of pages represented by NR_PAGEBLOCK_BITS */
-static inline void __init set_pageblock_order(unsigned int order)
+static inline void __init set_pageblock_order(void)
{
+ unsigned int order;
+
/* Check that pageblock_nr_pages has not already been setup */
if (pageblock_order)
return;
+ if (HPAGE_SHIFT > PAGE_SHIFT)
+ order = HUGETLB_PAGE_ORDER;
+ else
+ order = MAX_ORDER - 1;
+
/*
* Assume the largest contiguous order of interest is a huge page.
- * This value may be variable depending on boot parameters on IA64
+ * This value may be variable depending on boot parameters on IA64 and
+ * powerpc.
*/
pageblock_order = order;
}
/*
* When CONFIG_HUGETLB_PAGE_SIZE_VARIABLE is not set, set_pageblock_order()
- * and pageblock_default_order() are unused as pageblock_order is set
- * at compile-time. See include/linux/pageblock-flags.h for the values of
- * pageblock_order based on the kernel config
+ * is unused as pageblock_order is set at compile-time. See
+ * include/linux/pageblock-flags.h for the values of pageblock_order based on
+ * the kernel config
*/
-static inline int pageblock_default_order(unsigned int order)
+static inline void set_pageblock_order(void)
{
- return MAX_ORDER-1;
}
-#define set_pageblock_order(x) do {} while (0)
#endif /* CONFIG_HUGETLB_PAGE_SIZE_VARIABLE */
for (j = 0; j < MAX_NR_ZONES; j++) {
struct zone *zone = pgdat->node_zones + j;
unsigned long size, realsize, memmap_pages;
- enum lru_list lru;
size = zone_spanned_pages_in_node(nid, j, zones_size);
realsize = size - zone_absent_pages_in_node(nid, j,
zone->zone_pgdat = pgdat;
zone_pcp_init(zone);
- for_each_lru(lru)
- INIT_LIST_HEAD(&zone->lruvec.lists[lru]);
- zone->reclaim_stat.recent_rotated[0] = 0;
- zone->reclaim_stat.recent_rotated[1] = 0;
- zone->reclaim_stat.recent_scanned[0] = 0;
- zone->reclaim_stat.recent_scanned[1] = 0;
+ lruvec_init(&zone->lruvec, zone);
zap_zone_vm_stats(zone);
zone->flags = 0;
if (!size)
continue;
- set_pageblock_order(pageblock_default_order());
+ set_pageblock_order();
setup_usemap(pgdat, zone, size);
ret = init_currently_empty_zone(zone, zone_start_pfn,
size, MEMMAP_EARLY);
find_zone_movable_pfns_for_nodes();
/* Print out the zone ranges */
- printk("Zone PFN ranges:\n");
+ printk("Zone ranges:\n");
for (i = 0; i < MAX_NR_ZONES; i++) {
if (i == ZONE_MOVABLE)
continue;
arch_zone_highest_possible_pfn[i])
printk(KERN_CONT "empty\n");
else
- printk(KERN_CONT "%0#10lx -> %0#10lx\n",
- arch_zone_lowest_possible_pfn[i],
- arch_zone_highest_possible_pfn[i]);
+ printk(KERN_CONT "[mem %0#10lx-%0#10lx]\n",
+ arch_zone_lowest_possible_pfn[i] << PAGE_SHIFT,
+ (arch_zone_highest_possible_pfn[i]
+ << PAGE_SHIFT) - 1);
}
/* Print out the PFNs ZONE_MOVABLE begins at in each node */
- printk("Movable zone start PFN for each node\n");
+ printk("Movable zone start for each node\n");
for (i = 0; i < MAX_NUMNODES; i++) {
if (zone_movable_pfn[i])
- printk(" Node %d: %lu\n", i, zone_movable_pfn[i]);
+ printk(" Node %d: %#010lx\n", i,
+ zone_movable_pfn[i] << PAGE_SHIFT);
}
/* Print out the early_node_map[] */
- printk("Early memory PFN ranges\n");
+ printk("Early memory node ranges\n");
for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn, &nid)
- printk(" %3d: %0#10lx -> %0#10lx\n", nid, start_pfn, end_pfn);
+ printk(" node %3d: [mem %#010lx-%#010lx]\n", nid,
+ start_pfn << PAGE_SHIFT, (end_pfn << PAGE_SHIFT) - 1);
/* Initialise every node */
mminit_verify_pageflags_layout();
.nr_migratepages = 0,
.order = -1,
.zone = page_zone(pfn_to_page(start)),
- .sync = true,
+ .mode = COMPACT_SYNC,
};
INIT_LIST_HEAD(&cc.migratepages);
}
#endif
-static struct trace_print_flags pageflag_names[] = {
+static const struct trace_print_flags pageflag_names[] = {
{1UL << PG_locked, "locked" },
{1UL << PG_error, "error" },
{1UL << PG_referenced, "referenced" },
#ifdef CONFIG_MEMORY_FAILURE
{1UL << PG_hwpoison, "hwpoison" },
#endif
- {-1UL, NULL },
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ {1UL << PG_compound_lock, "compound_lock" },
+#endif
};
static void dump_page_flags(unsigned long flags)
unsigned long mask;
int i;
+ BUILD_BUG_ON(ARRAY_SIZE(pageflag_names) != __NR_PAGEFLAGS);
+
printk(KERN_ALERT "page flags: %#lx(", flags);
/* remove zone id */
flags &= (1UL << NR_PAGEFLAGS) - 1;
- for (i = 0; pageflag_names[i].name && flags; i++) {
+ for (i = 0; i < ARRAY_SIZE(pageflag_names) && flags; i++) {
mask = pageflag_names[i].mask;
if ((flags & mask) != mask)
/* Check iovecs */
if (vm_write)
rc = rw_copy_check_uvector(WRITE, lvec, liovcnt, UIO_FASTIOV,
- iovstack_l, &iov_l, 1);
+ iovstack_l, &iov_l);
else
rc = rw_copy_check_uvector(READ, lvec, liovcnt, UIO_FASTIOV,
- iovstack_l, &iov_l, 1);
+ iovstack_l, &iov_l);
if (rc <= 0)
goto free_iovecs;
- rc = rw_copy_check_uvector(READ, rvec, riovcnt, UIO_FASTIOV,
- iovstack_r, &iov_r, 0);
+ rc = rw_copy_check_uvector(CHECK_IOVEC_ONLY, rvec, riovcnt, UIO_FASTIOV,
+ iovstack_r, &iov_r);
if (rc <= 0)
goto free_iovecs;
if (vm_write)
rc = compat_rw_copy_check_uvector(WRITE, lvec, liovcnt,
UIO_FASTIOV, iovstack_l,
- &iov_l, 1);
+ &iov_l);
else
rc = compat_rw_copy_check_uvector(READ, lvec, liovcnt,
UIO_FASTIOV, iovstack_l,
- &iov_l, 1);
+ &iov_l);
if (rc <= 0)
goto free_iovecs;
- rc = compat_rw_copy_check_uvector(READ, rvec, riovcnt,
+ rc = compat_rw_copy_check_uvector(CHECK_IOVEC_ONLY, rvec, riovcnt,
UIO_FASTIOV, iovstack_r,
- &iov_r, 0);
+ &iov_r);
if (rc <= 0)
goto free_iovecs;
#include <linux/task_io_accounting_ops.h>
#include <linux/pagevec.h>
#include <linux/pagemap.h>
+#include <linux/syscalls.h>
+#include <linux/file.h>
/*
* Initialise a struct file's readahead state. Assumes that the caller has
ondemand_readahead(mapping, ra, filp, true, offset, req_size);
}
EXPORT_SYMBOL_GPL(page_cache_async_readahead);
+
+static ssize_t
+do_readahead(struct address_space *mapping, struct file *filp,
+ pgoff_t index, unsigned long nr)
+{
+ if (!mapping || !mapping->a_ops || !mapping->a_ops->readpage)
+ return -EINVAL;
+
+ force_page_cache_readahead(mapping, filp, index, nr);
+ return 0;
+}
+
+SYSCALL_DEFINE(readahead)(int fd, loff_t offset, size_t count)
+{
+ ssize_t ret;
+ struct file *file;
+
+ ret = -EBADF;
+ file = fget(fd);
+ if (file) {
+ if (file->f_mode & FMODE_READ) {
+ struct address_space *mapping = file->f_mapping;
+ pgoff_t start = offset >> PAGE_CACHE_SHIFT;
+ pgoff_t end = (offset + count - 1) >> PAGE_CACHE_SHIFT;
+ unsigned long len = end - start + 1;
+ ret = do_readahead(mapping, file, start, len);
+ }
+ fput(file);
+ }
+ return ret;
+}
+#ifdef CONFIG_HAVE_SYSCALL_WRAPPERS
+asmlinkage long SyS_readahead(long fd, loff_t offset, long count)
+{
+ return SYSC_readahead((int) fd, offset, (size_t) count);
+}
+SYSCALL_ALIAS(sys_readahead, SyS_readahead);
+#endif
pte_unmap_unlock(pte, ptl);
}
- /* Pretend the page is referenced if the task has the
- swap token and is in the middle of a page fault. */
- if (mm != current->mm && has_swap_token(mm) &&
- rwsem_is_locked(&mm->mmap_sem))
- referenced++;
-
(*mapcount)--;
if (referenced)
#include <linux/blkdev.h>
#include <linux/pagevec.h>
#include <linux/percpu_counter.h>
+#include <linux/falloc.h>
#include <linux/splice.h>
#include <linux/security.h>
#include <linux/swapops.h>
char value[0];
};
+/*
+ * shmem_fallocate and shmem_writepage communicate via inode->i_private
+ * (with i_mutex making sure that it has only one user at a time):
+ * we would prefer not to enlarge the shmem inode just for that.
+ */
+struct shmem_falloc {
+ pgoff_t start; /* start of range currently being fallocated */
+ pgoff_t next; /* the next page offset to be fallocated */
+ pgoff_t nr_falloced; /* how many new pages have been fallocated */
+ pgoff_t nr_unswapped; /* how often writepage refused to swap out */
+};
+
/* Flag allocation requirements to shmem_getpage */
enum sgp_type {
SGP_READ, /* don't exceed i_size, don't allocate page */
SGP_CACHE, /* don't exceed i_size, may allocate page */
SGP_DIRTY, /* like SGP_CACHE, but set new page dirty */
- SGP_WRITE, /* may exceed i_size, may allocate page */
+ SGP_WRITE, /* may exceed i_size, may allocate !Uptodate page */
+ SGP_FALLOC, /* like SGP_WRITE, but make existing page Uptodate */
};
#ifdef CONFIG_TMPFS
}
#endif
+static bool shmem_should_replace_page(struct page *page, gfp_t gfp);
+static int shmem_replace_page(struct page **pagep, gfp_t gfp,
+ struct shmem_inode_info *info, pgoff_t index);
static int shmem_getpage_gfp(struct inode *inode, pgoff_t index,
struct page **pagep, enum sgp_type sgp, gfp_t gfp, int *fault_type);
/*
* Remove range of pages and swap entries from radix tree, and free them.
+ * If !unfalloc, truncate or punch hole; if unfalloc, undo failed fallocate.
*/
-void shmem_truncate_range(struct inode *inode, loff_t lstart, loff_t lend)
+static void shmem_undo_range(struct inode *inode, loff_t lstart, loff_t lend,
+ bool unfalloc)
{
struct address_space *mapping = inode->i_mapping;
struct shmem_inode_info *info = SHMEM_I(inode);
pgoff_t start = (lstart + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
- unsigned partial = lstart & (PAGE_CACHE_SIZE - 1);
- pgoff_t end = (lend >> PAGE_CACHE_SHIFT);
+ pgoff_t end = (lend + 1) >> PAGE_CACHE_SHIFT;
+ unsigned int partial_start = lstart & (PAGE_CACHE_SIZE - 1);
+ unsigned int partial_end = (lend + 1) & (PAGE_CACHE_SIZE - 1);
struct pagevec pvec;
pgoff_t indices[PAGEVEC_SIZE];
long nr_swaps_freed = 0;
pgoff_t index;
int i;
- BUG_ON((lend & (PAGE_CACHE_SIZE - 1)) != (PAGE_CACHE_SIZE - 1));
+ if (lend == -1)
+ end = -1; /* unsigned, so actually very big */
pagevec_init(&pvec, 0);
index = start;
- while (index <= end) {
+ while (index < end) {
pvec.nr = shmem_find_get_pages_and_swap(mapping, index,
- min(end - index, (pgoff_t)PAGEVEC_SIZE - 1) + 1,
+ min(end - index, (pgoff_t)PAGEVEC_SIZE),
pvec.pages, indices);
if (!pvec.nr)
break;
struct page *page = pvec.pages[i];
index = indices[i];
- if (index > end)
+ if (index >= end)
break;
if (radix_tree_exceptional_entry(page)) {
+ if (unfalloc)
+ continue;
nr_swaps_freed += !shmem_free_swap(mapping,
index, page);
continue;
if (!trylock_page(page))
continue;
- if (page->mapping == mapping) {
- VM_BUG_ON(PageWriteback(page));
- truncate_inode_page(mapping, page);
+ if (!unfalloc || !PageUptodate(page)) {
+ if (page->mapping == mapping) {
+ VM_BUG_ON(PageWriteback(page));
+ truncate_inode_page(mapping, page);
+ }
}
unlock_page(page);
}
index++;
}
- if (partial) {
+ if (partial_start) {
struct page *page = NULL;
shmem_getpage(inode, start - 1, &page, SGP_READ, NULL);
if (page) {
- zero_user_segment(page, partial, PAGE_CACHE_SIZE);
+ unsigned int top = PAGE_CACHE_SIZE;
+ if (start > end) {
+ top = partial_end;
+ partial_end = 0;
+ }
+ zero_user_segment(page, partial_start, top);
+ set_page_dirty(page);
+ unlock_page(page);
+ page_cache_release(page);
+ }
+ }
+ if (partial_end) {
+ struct page *page = NULL;
+ shmem_getpage(inode, end, &page, SGP_READ, NULL);
+ if (page) {
+ zero_user_segment(page, 0, partial_end);
set_page_dirty(page);
unlock_page(page);
page_cache_release(page);
}
}
+ if (start >= end)
+ return;
index = start;
for ( ; ; ) {
cond_resched();
pvec.nr = shmem_find_get_pages_and_swap(mapping, index,
- min(end - index, (pgoff_t)PAGEVEC_SIZE - 1) + 1,
+ min(end - index, (pgoff_t)PAGEVEC_SIZE),
pvec.pages, indices);
if (!pvec.nr) {
- if (index == start)
+ if (index == start || unfalloc)
break;
index = start;
continue;
}
- if (index == start && indices[0] > end) {
+ if ((index == start || unfalloc) && indices[0] >= end) {
shmem_deswap_pagevec(&pvec);
pagevec_release(&pvec);
break;
struct page *page = pvec.pages[i];
index = indices[i];
- if (index > end)
+ if (index >= end)
break;
if (radix_tree_exceptional_entry(page)) {
+ if (unfalloc)
+ continue;
nr_swaps_freed += !shmem_free_swap(mapping,
index, page);
continue;
}
lock_page(page);
- if (page->mapping == mapping) {
- VM_BUG_ON(PageWriteback(page));
- truncate_inode_page(mapping, page);
+ if (!unfalloc || !PageUptodate(page)) {
+ if (page->mapping == mapping) {
+ VM_BUG_ON(PageWriteback(page));
+ truncate_inode_page(mapping, page);
+ }
}
unlock_page(page);
}
info->swapped -= nr_swaps_freed;
shmem_recalc_inode(inode);
spin_unlock(&info->lock);
+}
+void shmem_truncate_range(struct inode *inode, loff_t lstart, loff_t lend)
+{
+ shmem_undo_range(inode, lstart, lend, false);
inode->i_ctime = inode->i_mtime = CURRENT_TIME;
}
EXPORT_SYMBOL_GPL(shmem_truncate_range);
* If swap found in inode, free it and move page from swapcache to filecache.
*/
static int shmem_unuse_inode(struct shmem_inode_info *info,
- swp_entry_t swap, struct page *page)
+ swp_entry_t swap, struct page **pagep)
{
struct address_space *mapping = info->vfs_inode.i_mapping;
void *radswap;
pgoff_t index;
- int error;
+ gfp_t gfp;
+ int error = 0;
radswap = swp_to_radix_entry(swap);
index = radix_tree_locate_item(&mapping->page_tree, radswap);
if (shmem_swaplist.next != &info->swaplist)
list_move_tail(&shmem_swaplist, &info->swaplist);
+ gfp = mapping_gfp_mask(mapping);
+ if (shmem_should_replace_page(*pagep, gfp)) {
+ mutex_unlock(&shmem_swaplist_mutex);
+ error = shmem_replace_page(pagep, gfp, info, index);
+ mutex_lock(&shmem_swaplist_mutex);
+ /*
+ * We needed to drop mutex to make that restrictive page
+ * allocation; but the inode might already be freed by now,
+ * and we cannot refer to inode or mapping or info to check.
+ * However, we do hold page lock on the PageSwapCache page,
+ * so can check if that still has our reference remaining.
+ */
+ if (!page_swapcount(*pagep))
+ error = -ENOENT;
+ }
+
/*
* We rely on shmem_swaplist_mutex, not only to protect the swaplist,
* but also to hold up shmem_evict_inode(): so inode cannot be freed
* beneath us (pagelock doesn't help until the page is in pagecache).
*/
- error = shmem_add_to_page_cache(page, mapping, index,
+ if (!error)
+ error = shmem_add_to_page_cache(*pagep, mapping, index,
GFP_NOWAIT, radswap);
- /* which does mem_cgroup_uncharge_cache_page on error */
-
if (error != -ENOMEM) {
/*
* Truncation and eviction use free_swap_and_cache(), which
* only does trylock page: if we raced, best clean up here.
*/
- delete_from_swap_cache(page);
- set_page_dirty(page);
+ delete_from_swap_cache(*pagep);
+ set_page_dirty(*pagep);
if (!error) {
spin_lock(&info->lock);
info->swapped--;
struct list_head *this, *next;
struct shmem_inode_info *info;
int found = 0;
- int error;
+ int error = 0;
+
+ /*
+ * There's a faint possibility that swap page was replaced before
+ * caller locked it: it will come back later with the right page.
+ */
+ if (unlikely(!PageSwapCache(page)))
+ goto out;
/*
* Charge page using GFP_KERNEL while we can wait, before taking
list_for_each_safe(this, next, &shmem_swaplist) {
info = list_entry(this, struct shmem_inode_info, swaplist);
if (info->swapped)
- found = shmem_unuse_inode(info, swap, page);
+ found = shmem_unuse_inode(info, swap, &page);
else
list_del_init(&info->swaplist);
cond_resched();
}
mutex_unlock(&shmem_swaplist_mutex);
- if (!found)
- mem_cgroup_uncharge_cache_page(page);
if (found < 0)
error = found;
out:
WARN_ON_ONCE(1); /* Still happens? Tell us about it! */
goto redirty;
}
+
+ /*
+ * This is somewhat ridiculous, but without plumbing a SWAP_MAP_FALLOC
+ * value into swapfile.c, the only way we can correctly account for a
+ * fallocated page arriving here is now to initialize it and write it.
+ *
+ * That's okay for a page already fallocated earlier, but if we have
+ * not yet completed the fallocation, then (a) we want to keep track
+ * of this page in case we have to undo it, and (b) it may not be a
+ * good idea to continue anyway, once we're pushing into swap. So
+ * reactivate the page, and let shmem_fallocate() quit when too many.
+ */
+ if (!PageUptodate(page)) {
+ if (inode->i_private) {
+ struct shmem_falloc *shmem_falloc;
+ spin_lock(&inode->i_lock);
+ shmem_falloc = inode->i_private;
+ if (shmem_falloc &&
+ index >= shmem_falloc->start &&
+ index < shmem_falloc->next)
+ shmem_falloc->nr_unswapped++;
+ else
+ shmem_falloc = NULL;
+ spin_unlock(&inode->i_lock);
+ if (shmem_falloc)
+ goto redirty;
+ }
+ clear_highpage(page);
+ flush_dcache_page(page);
+ SetPageUptodate(page);
+ }
+
swap = get_swap_page();
if (!swap.val)
goto redirty;
}
#endif
+/*
+ * When a page is moved from swapcache to shmem filecache (either by the
+ * usual swapin of shmem_getpage_gfp(), or by the less common swapoff of
+ * shmem_unuse_inode()), it may have been read in earlier from swap, in
+ * ignorance of the mapping it belongs to. If that mapping has special
+ * constraints (like the gma500 GEM driver, which requires RAM below 4GB),
+ * we may need to copy to a suitable page before moving to filecache.
+ *
+ * In a future release, this may well be extended to respect cpuset and
+ * NUMA mempolicy, and applied also to anonymous pages in do_swap_page();
+ * but for now it is a simple matter of zone.
+ */
+static bool shmem_should_replace_page(struct page *page, gfp_t gfp)
+{
+ return page_zonenum(page) > gfp_zone(gfp);
+}
+
+static int shmem_replace_page(struct page **pagep, gfp_t gfp,
+ struct shmem_inode_info *info, pgoff_t index)
+{
+ struct page *oldpage, *newpage;
+ struct address_space *swap_mapping;
+ pgoff_t swap_index;
+ int error;
+
+ oldpage = *pagep;
+ swap_index = page_private(oldpage);
+ swap_mapping = page_mapping(oldpage);
+
+ /*
+ * We have arrived here because our zones are constrained, so don't
+ * limit chance of success by further cpuset and node constraints.
+ */
+ gfp &= ~GFP_CONSTRAINT_MASK;
+ newpage = shmem_alloc_page(gfp, info, index);
+ if (!newpage)
+ return -ENOMEM;
+ VM_BUG_ON(shmem_should_replace_page(newpage, gfp));
+
+ *pagep = newpage;
+ page_cache_get(newpage);
+ copy_highpage(newpage, oldpage);
+
+ VM_BUG_ON(!PageLocked(oldpage));
+ __set_page_locked(newpage);
+ VM_BUG_ON(!PageUptodate(oldpage));
+ SetPageUptodate(newpage);
+ VM_BUG_ON(!PageSwapBacked(oldpage));
+ SetPageSwapBacked(newpage);
+ VM_BUG_ON(!swap_index);
+ set_page_private(newpage, swap_index);
+ VM_BUG_ON(!PageSwapCache(oldpage));
+ SetPageSwapCache(newpage);
+
+ /*
+ * Our caller will very soon move newpage out of swapcache, but it's
+ * a nice clean interface for us to replace oldpage by newpage there.
+ */
+ spin_lock_irq(&swap_mapping->tree_lock);
+ error = shmem_radix_tree_replace(swap_mapping, swap_index, oldpage,
+ newpage);
+ __inc_zone_page_state(newpage, NR_FILE_PAGES);
+ __dec_zone_page_state(oldpage, NR_FILE_PAGES);
+ spin_unlock_irq(&swap_mapping->tree_lock);
+ BUG_ON(error);
+
+ mem_cgroup_replace_page_cache(oldpage, newpage);
+ lru_cache_add_anon(newpage);
+
+ ClearPageSwapCache(oldpage);
+ set_page_private(oldpage, 0);
+
+ unlock_page(oldpage);
+ page_cache_release(oldpage);
+ page_cache_release(oldpage);
+ return 0;
+}
+
/*
* shmem_getpage_gfp - find page in cache, or get from swap, or allocate
*
swp_entry_t swap;
int error;
int once = 0;
+ int alloced = 0;
if (index > (MAX_LFS_FILESIZE >> PAGE_CACHE_SHIFT))
return -EFBIG;
page = NULL;
}
- if (sgp != SGP_WRITE &&
+ if (sgp != SGP_WRITE && sgp != SGP_FALLOC &&
((loff_t)index << PAGE_CACHE_SHIFT) >= i_size_read(inode)) {
error = -EINVAL;
goto failed;
}
+ /* fallocated page? */
+ if (page && !PageUptodate(page)) {
+ if (sgp != SGP_READ)
+ goto clear;
+ unlock_page(page);
+ page_cache_release(page);
+ page = NULL;
+ }
if (page || (sgp == SGP_READ && !swap.val)) {
- /*
- * Once we can get the page lock, it must be uptodate:
- * if there were an error in reading back from swap,
- * the page would not be inserted into the filecache.
- */
- BUG_ON(page && !PageUptodate(page));
*pagep = page;
return 0;
}
/* We have to do this with page locked to prevent races */
lock_page(page);
+ if (!PageSwapCache(page) || page->mapping) {
+ error = -EEXIST; /* try again */
+ goto failed;
+ }
if (!PageUptodate(page)) {
error = -EIO;
goto failed;
}
wait_on_page_writeback(page);
- /* Someone may have already done it for us */
- if (page->mapping) {
- if (page->mapping == mapping &&
- page->index == index)
- goto done;
- error = -EEXIST;
- goto failed;
+ if (shmem_should_replace_page(page, gfp)) {
+ error = shmem_replace_page(&page, gfp, info, index);
+ if (error)
+ goto failed;
}
error = mem_cgroup_cache_charge(page, current->mm,
inode->i_blocks += BLOCKS_PER_PAGE;
shmem_recalc_inode(inode);
spin_unlock(&info->lock);
+ alloced = true;
- clear_highpage(page);
- flush_dcache_page(page);
- SetPageUptodate(page);
+ /*
+ * Let SGP_FALLOC use the SGP_WRITE optimization on a new page.
+ */
+ if (sgp == SGP_FALLOC)
+ sgp = SGP_WRITE;
+clear:
+ /*
+ * Let SGP_WRITE caller clear ends if write does not fill page;
+ * but SGP_FALLOC on a page fallocated earlier must initialize
+ * it now, lest undo on failure cancel our earlier guarantee.
+ */
+ if (sgp != SGP_WRITE) {
+ clear_highpage(page);
+ flush_dcache_page(page);
+ SetPageUptodate(page);
+ }
if (sgp == SGP_DIRTY)
set_page_dirty(page);
}
-done:
+
/* Perhaps the file has been truncated since we checked */
- if (sgp != SGP_WRITE &&
+ if (sgp != SGP_WRITE && sgp != SGP_FALLOC &&
((loff_t)index << PAGE_CACHE_SHIFT) >= i_size_read(inode)) {
error = -EINVAL;
- goto trunc;
+ if (alloced)
+ goto trunc;
+ else
+ goto failed;
}
*pagep = page;
return 0;
* Error recovery.
*/
trunc:
+ info = SHMEM_I(inode);
ClearPageDirty(page);
delete_from_page_cache(page);
spin_lock(&info->lock);
inode->i_blocks -= BLOCKS_PER_PAGE;
spin_unlock(&info->lock);
decused:
+ sbinfo = SHMEM_SB(inode->i_sb);
if (sbinfo->max_blocks)
percpu_counter_add(&sbinfo->used_blocks, -1);
unacct:
if (pos + copied > inode->i_size)
i_size_write(inode, pos + copied);
+ if (!PageUptodate(page)) {
+ if (copied < PAGE_CACHE_SIZE) {
+ unsigned from = pos & (PAGE_CACHE_SIZE - 1);
+ zero_user_segments(page, 0, from,
+ from + copied, PAGE_CACHE_SIZE);
+ }
+ SetPageUptodate(page);
+ }
set_page_dirty(page);
unlock_page(page);
page_cache_release(page);
return error;
}
+/*
+ * llseek SEEK_DATA or SEEK_HOLE through the radix_tree.
+ */
+static pgoff_t shmem_seek_hole_data(struct address_space *mapping,
+ pgoff_t index, pgoff_t end, int origin)
+{
+ struct page *page;
+ struct pagevec pvec;
+ pgoff_t indices[PAGEVEC_SIZE];
+ bool done = false;
+ int i;
+
+ pagevec_init(&pvec, 0);
+ pvec.nr = 1; /* start small: we may be there already */
+ while (!done) {
+ pvec.nr = shmem_find_get_pages_and_swap(mapping, index,
+ pvec.nr, pvec.pages, indices);
+ if (!pvec.nr) {
+ if (origin == SEEK_DATA)
+ index = end;
+ break;
+ }
+ for (i = 0; i < pvec.nr; i++, index++) {
+ if (index < indices[i]) {
+ if (origin == SEEK_HOLE) {
+ done = true;
+ break;
+ }
+ index = indices[i];
+ }
+ page = pvec.pages[i];
+ if (page && !radix_tree_exceptional_entry(page)) {
+ if (!PageUptodate(page))
+ page = NULL;
+ }
+ if (index >= end ||
+ (page && origin == SEEK_DATA) ||
+ (!page && origin == SEEK_HOLE)) {
+ done = true;
+ break;
+ }
+ }
+ shmem_deswap_pagevec(&pvec);
+ pagevec_release(&pvec);
+ pvec.nr = PAGEVEC_SIZE;
+ cond_resched();
+ }
+ return index;
+}
+
+static loff_t shmem_file_llseek(struct file *file, loff_t offset, int origin)
+{
+ struct address_space *mapping;
+ struct inode *inode;
+ pgoff_t start, end;
+ loff_t new_offset;
+
+ if (origin != SEEK_DATA && origin != SEEK_HOLE)
+ return generic_file_llseek_size(file, offset, origin,
+ MAX_LFS_FILESIZE);
+ mapping = file->f_mapping;
+ inode = mapping->host;
+ mutex_lock(&inode->i_mutex);
+ /* We're holding i_mutex so we can access i_size directly */
+
+ if (offset < 0)
+ offset = -EINVAL;
+ else if (offset >= inode->i_size)
+ offset = -ENXIO;
+ else {
+ start = offset >> PAGE_CACHE_SHIFT;
+ end = (inode->i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+ new_offset = shmem_seek_hole_data(mapping, start, end, origin);
+ new_offset <<= PAGE_CACHE_SHIFT;
+ if (new_offset > offset) {
+ if (new_offset < inode->i_size)
+ offset = new_offset;
+ else if (origin == SEEK_DATA)
+ offset = -ENXIO;
+ else
+ offset = inode->i_size;
+ }
+ }
+
+ if (offset >= 0 && offset != file->f_pos) {
+ file->f_pos = offset;
+ file->f_version = 0;
+ }
+ mutex_unlock(&inode->i_mutex);
+ return offset;
+}
+
+static long shmem_fallocate(struct file *file, int mode, loff_t offset,
+ loff_t len)
+{
+ struct inode *inode = file->f_path.dentry->d_inode;
+ struct shmem_sb_info *sbinfo = SHMEM_SB(inode->i_sb);
+ struct shmem_falloc shmem_falloc;
+ pgoff_t start, index, end;
+ int error;
+
+ mutex_lock(&inode->i_mutex);
+
+ if (mode & FALLOC_FL_PUNCH_HOLE) {
+ struct address_space *mapping = file->f_mapping;
+ loff_t unmap_start = round_up(offset, PAGE_SIZE);
+ loff_t unmap_end = round_down(offset + len, PAGE_SIZE) - 1;
+
+ if ((u64)unmap_end > (u64)unmap_start)
+ unmap_mapping_range(mapping, unmap_start,
+ 1 + unmap_end - unmap_start, 0);
+ shmem_truncate_range(inode, offset, offset + len - 1);
+ /* No need to unmap again: hole-punching leaves COWed pages */
+ error = 0;
+ goto out;
+ }
+
+ /* We need to check rlimit even when FALLOC_FL_KEEP_SIZE */
+ error = inode_newsize_ok(inode, offset + len);
+ if (error)
+ goto out;
+
+ start = offset >> PAGE_CACHE_SHIFT;
+ end = (offset + len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+ /* Try to avoid a swapstorm if len is impossible to satisfy */
+ if (sbinfo->max_blocks && end - start > sbinfo->max_blocks) {
+ error = -ENOSPC;
+ goto out;
+ }
+
+ shmem_falloc.start = start;
+ shmem_falloc.next = start;
+ shmem_falloc.nr_falloced = 0;
+ shmem_falloc.nr_unswapped = 0;
+ spin_lock(&inode->i_lock);
+ inode->i_private = &shmem_falloc;
+ spin_unlock(&inode->i_lock);
+
+ for (index = start; index < end; index++) {
+ struct page *page;
+
+ /*
+ * Good, the fallocate(2) manpage permits EINTR: we may have
+ * been interrupted because we are using up too much memory.
+ */
+ if (signal_pending(current))
+ error = -EINTR;
+ else if (shmem_falloc.nr_unswapped > shmem_falloc.nr_falloced)
+ error = -ENOMEM;
+ else
+ error = shmem_getpage(inode, index, &page, SGP_FALLOC,
+ NULL);
+ if (error) {
+ /* Remove the !PageUptodate pages we added */
+ shmem_undo_range(inode,
+ (loff_t)start << PAGE_CACHE_SHIFT,
+ (loff_t)index << PAGE_CACHE_SHIFT, true);
+ goto undone;
+ }
+
+ /*
+ * Inform shmem_writepage() how far we have reached.
+ * No need for lock or barrier: we have the page lock.
+ */
+ shmem_falloc.next++;
+ if (!PageUptodate(page))
+ shmem_falloc.nr_falloced++;
+
+ /*
+ * If !PageUptodate, leave it that way so that freeable pages
+ * can be recognized if we need to rollback on error later.
+ * But set_page_dirty so that memory pressure will swap rather
+ * than free the pages we are allocating (and SGP_CACHE pages
+ * might still be clean: we now need to mark those dirty too).
+ */
+ set_page_dirty(page);
+ unlock_page(page);
+ page_cache_release(page);
+ cond_resched();
+ }
+
+ if (!(mode & FALLOC_FL_KEEP_SIZE) && offset + len > inode->i_size)
+ i_size_write(inode, offset + len);
+ inode->i_ctime = CURRENT_TIME;
+undone:
+ spin_lock(&inode->i_lock);
+ inode->i_private = NULL;
+ spin_unlock(&inode->i_lock);
+out:
+ mutex_unlock(&inode->i_mutex);
+ return error;
+}
+
static int shmem_statfs(struct dentry *dentry, struct kstatfs *buf)
{
struct shmem_sb_info *sbinfo = SHMEM_SB(dentry->d_sb);
kaddr = kmap_atomic(page);
memcpy(kaddr, symname, len);
kunmap_atomic(kaddr);
+ SetPageUptodate(page);
set_page_dirty(page);
unlock_page(page);
page_cache_release(page);
return dentry;
}
-static int shmem_encode_fh(struct dentry *dentry, __u32 *fh, int *len,
- int connectable)
+static int shmem_encode_fh(struct inode *inode, __u32 *fh, int *len,
+ struct inode *parent)
{
- struct inode *inode = dentry->d_inode;
-
if (*len < 3) {
*len = 3;
return 255;
}
}
sb->s_export_op = &shmem_export_ops;
+ sb->s_flags |= MS_NOSEC;
#else
sb->s_flags |= MS_NOUSER;
#endif
static const struct file_operations shmem_file_operations = {
.mmap = shmem_mmap,
#ifdef CONFIG_TMPFS
- .llseek = generic_file_llseek,
+ .llseek = shmem_file_llseek,
.read = do_sync_read,
.write = do_sync_write,
.aio_read = shmem_file_aio_read,
.fsync = noop_fsync,
.splice_read = shmem_file_splice_read,
.splice_write = generic_file_splice_write,
+ .fallocate = shmem_fallocate,
#endif
};
static const struct inode_operations shmem_inode_operations = {
.setattr = shmem_setattr,
- .truncate_range = shmem_truncate_range,
#ifdef CONFIG_TMPFS_XATTR
.setxattr = shmem_setxattr,
.getxattr = shmem_getxattr,
#ifdef CONFIG_MEMORY_HOTREMOVE
static unsigned long * __init
sparse_early_usemaps_alloc_pgdat_section(struct pglist_data *pgdat,
- unsigned long count)
+ unsigned long size)
{
- unsigned long section_nr;
-
+ pg_data_t *host_pgdat;
+ unsigned long goal;
/*
* A page may contain usemaps for other sections preventing the
* page being freed and making a section unremovable while
* from the same section as the pgdat where possible to avoid
* this problem.
*/
- section_nr = pfn_to_section_nr(__pa(pgdat) >> PAGE_SHIFT);
- return alloc_bootmem_section(usemap_size() * count, section_nr);
+ goal = __pa(pgdat) & PAGE_SECTION_MASK;
+ host_pgdat = NODE_DATA(early_pfn_to_nid(goal >> PAGE_SHIFT));
+ return __alloc_bootmem_node_nopanic(host_pgdat, size,
+ SMP_CACHE_BYTES, goal);
}
static void __init check_usemap_section_nr(int nid, unsigned long *usemap)
#else
static unsigned long * __init
sparse_early_usemaps_alloc_pgdat_section(struct pglist_data *pgdat,
- unsigned long count)
+ unsigned long size)
{
- return NULL;
+ return alloc_bootmem_node_nopanic(pgdat, size);
}
static void __init check_usemap_section_nr(int nid, unsigned long *usemap)
int size = usemap_size();
usemap = sparse_early_usemaps_alloc_pgdat_section(NODE_DATA(nodeid),
- usemap_count);
+ size * usemap_count);
if (!usemap) {
- usemap = alloc_bootmem_node(NODE_DATA(nodeid), size * usemap_count);
- if (!usemap) {
- printk(KERN_WARNING "%s: allocation failed\n", __func__);
- return;
- }
+ printk(KERN_WARNING "%s: allocation failed\n", __func__);
+ return;
}
for (pnum = pnum_begin; pnum < pnum_end; pnum++) {
static void __page_cache_release(struct page *page)
{
if (PageLRU(page)) {
- unsigned long flags;
struct zone *zone = page_zone(page);
+ struct lruvec *lruvec;
+ unsigned long flags;
spin_lock_irqsave(&zone->lru_lock, flags);
+ lruvec = mem_cgroup_page_lruvec(page, zone);
VM_BUG_ON(!PageLRU(page));
__ClearPageLRU(page);
- del_page_from_lru_list(zone, page, page_off_lru(page));
+ del_page_from_lru_list(page, lruvec, page_off_lru(page));
spin_unlock_irqrestore(&zone->lru_lock, flags);
}
}
if (likely(page != page_head &&
get_page_unless_zero(page_head))) {
unsigned long flags;
+
+ /*
+ * THP can not break up slab pages so avoid taking
+ * compound_lock(). Slab performs non-atomic bit ops
+ * on page->flags for better performance. In particular
+ * slab_unlock() in slub used to be a hot path. It is
+ * still hot on arches that do not support
+ * this_cpu_cmpxchg_double().
+ */
+ if (PageSlab(page_head)) {
+ if (PageTail(page)) {
+ if (put_page_testzero(page_head))
+ VM_BUG_ON(1);
+
+ atomic_dec(&page->_mapcount);
+ goto skip_lock_tail;
+ } else
+ goto skip_lock;
+ }
/*
* page_head wasn't a dangling pointer but it
* may not be a head page anymore by the time
if (unlikely(!PageTail(page))) {
/* __split_huge_page_refcount run before us */
compound_unlock_irqrestore(page_head, flags);
- VM_BUG_ON(PageHead(page_head));
+skip_lock:
if (put_page_testzero(page_head))
__put_single_page(page_head);
- out_put_single:
+out_put_single:
if (put_page_testzero(page))
__put_single_page(page);
return;
VM_BUG_ON(atomic_read(&page_head->_count) <= 0);
VM_BUG_ON(atomic_read(&page->_count) != 0);
compound_unlock_irqrestore(page_head, flags);
+
+skip_lock_tail:
if (put_page_testzero(page_head)) {
if (PageHead(page_head))
__put_compound_page(page_head);
struct page *page_head = compound_trans_head(page);
if (likely(page != page_head && get_page_unless_zero(page_head))) {
+
+ /* Ref to put_compound_page() comment. */
+ if (PageSlab(page_head)) {
+ if (likely(PageTail(page))) {
+ __get_page_tail_foll(page, false);
+ return true;
+ } else {
+ put_page(page_head);
+ return false;
+ }
+ }
+
/*
* page_head wasn't a dangling pointer but it
* may not be a head page anymore by the time
EXPORT_SYMBOL(put_pages_list);
static void pagevec_lru_move_fn(struct pagevec *pvec,
- void (*move_fn)(struct page *page, void *arg),
- void *arg)
+ void (*move_fn)(struct page *page, struct lruvec *lruvec, void *arg),
+ void *arg)
{
int i;
struct zone *zone = NULL;
+ struct lruvec *lruvec;
unsigned long flags = 0;
for (i = 0; i < pagevec_count(pvec); i++) {
spin_lock_irqsave(&zone->lru_lock, flags);
}
- (*move_fn)(page, arg);
+ lruvec = mem_cgroup_page_lruvec(page, zone);
+ (*move_fn)(page, lruvec, arg);
}
if (zone)
spin_unlock_irqrestore(&zone->lru_lock, flags);
pagevec_reinit(pvec);
}
-static void pagevec_move_tail_fn(struct page *page, void *arg)
+static void pagevec_move_tail_fn(struct page *page, struct lruvec *lruvec,
+ void *arg)
{
int *pgmoved = arg;
if (PageLRU(page) && !PageActive(page) && !PageUnevictable(page)) {
enum lru_list lru = page_lru_base_type(page);
- struct lruvec *lruvec;
-
- lruvec = mem_cgroup_lru_move_lists(page_zone(page),
- page, lru, lru);
list_move_tail(&page->lru, &lruvec->lists[lru]);
(*pgmoved)++;
}
}
}
-static void update_page_reclaim_stat(struct zone *zone, struct page *page,
+static void update_page_reclaim_stat(struct lruvec *lruvec,
int file, int rotated)
{
- struct zone_reclaim_stat *reclaim_stat = &zone->reclaim_stat;
- struct zone_reclaim_stat *memcg_reclaim_stat;
-
- memcg_reclaim_stat = mem_cgroup_get_reclaim_stat_from_page(page);
+ struct zone_reclaim_stat *reclaim_stat = &lruvec->reclaim_stat;
reclaim_stat->recent_scanned[file]++;
if (rotated)
reclaim_stat->recent_rotated[file]++;
-
- if (!memcg_reclaim_stat)
- return;
-
- memcg_reclaim_stat->recent_scanned[file]++;
- if (rotated)
- memcg_reclaim_stat->recent_rotated[file]++;
}
-static void __activate_page(struct page *page, void *arg)
+static void __activate_page(struct page *page, struct lruvec *lruvec,
+ void *arg)
{
- struct zone *zone = page_zone(page);
-
if (PageLRU(page) && !PageActive(page) && !PageUnevictable(page)) {
int file = page_is_file_cache(page);
int lru = page_lru_base_type(page);
- del_page_from_lru_list(zone, page, lru);
+ del_page_from_lru_list(page, lruvec, lru);
SetPageActive(page);
lru += LRU_ACTIVE;
- add_page_to_lru_list(zone, page, lru);
- __count_vm_event(PGACTIVATE);
+ add_page_to_lru_list(page, lruvec, lru);
- update_page_reclaim_stat(zone, page, file, 1);
+ __count_vm_event(PGACTIVATE);
+ update_page_reclaim_stat(lruvec, file, 1);
}
}
struct zone *zone = page_zone(page);
spin_lock_irq(&zone->lru_lock);
- __activate_page(page, NULL);
+ __activate_page(page, mem_cgroup_page_lruvec(page, zone), NULL);
spin_unlock_irq(&zone->lru_lock);
}
#endif
void add_page_to_unevictable_list(struct page *page)
{
struct zone *zone = page_zone(page);
+ struct lruvec *lruvec;
spin_lock_irq(&zone->lru_lock);
+ lruvec = mem_cgroup_page_lruvec(page, zone);
SetPageUnevictable(page);
SetPageLRU(page);
- add_page_to_lru_list(zone, page, LRU_UNEVICTABLE);
+ add_page_to_lru_list(page, lruvec, LRU_UNEVICTABLE);
spin_unlock_irq(&zone->lru_lock);
}
* be write it out by flusher threads as this is much more effective
* than the single-page writeout from reclaim.
*/
-static void lru_deactivate_fn(struct page *page, void *arg)
+static void lru_deactivate_fn(struct page *page, struct lruvec *lruvec,
+ void *arg)
{
int lru, file;
bool active;
- struct zone *zone = page_zone(page);
if (!PageLRU(page))
return;
return;
active = PageActive(page);
-
file = page_is_file_cache(page);
lru = page_lru_base_type(page);
- del_page_from_lru_list(zone, page, lru + active);
+
+ del_page_from_lru_list(page, lruvec, lru + active);
ClearPageActive(page);
ClearPageReferenced(page);
- add_page_to_lru_list(zone, page, lru);
+ add_page_to_lru_list(page, lruvec, lru);
if (PageWriteback(page) || PageDirty(page)) {
/*
*/
SetPageReclaim(page);
} else {
- struct lruvec *lruvec;
/*
* The page's writeback ends up during pagevec
* We moves tha page into tail of inactive.
*/
- lruvec = mem_cgroup_lru_move_lists(zone, page, lru, lru);
list_move_tail(&page->lru, &lruvec->lists[lru]);
__count_vm_event(PGROTATED);
}
if (active)
__count_vm_event(PGDEACTIVATE);
- update_page_reclaim_stat(zone, page, file, 0);
+ update_page_reclaim_stat(lruvec, file, 0);
}
/*
int i;
LIST_HEAD(pages_to_free);
struct zone *zone = NULL;
+ struct lruvec *lruvec;
unsigned long uninitialized_var(flags);
for (i = 0; i < nr; i++) {
zone = pagezone;
spin_lock_irqsave(&zone->lru_lock, flags);
}
+
+ lruvec = mem_cgroup_page_lruvec(page, zone);
VM_BUG_ON(!PageLRU(page));
__ClearPageLRU(page);
- del_page_from_lru_list(zone, page, page_off_lru(page));
+ del_page_from_lru_list(page, lruvec, page_off_lru(page));
}
list_add(&page->lru, &pages_to_free);
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
/* used by __split_huge_page_refcount() */
-void lru_add_page_tail(struct zone* zone,
- struct page *page, struct page *page_tail)
+void lru_add_page_tail(struct page *page, struct page *page_tail,
+ struct lruvec *lruvec)
{
int uninitialized_var(active);
enum lru_list lru;
VM_BUG_ON(!PageHead(page));
VM_BUG_ON(PageCompound(page_tail));
VM_BUG_ON(PageLRU(page_tail));
- VM_BUG_ON(NR_CPUS != 1 && !spin_is_locked(&zone->lru_lock));
+ VM_BUG_ON(NR_CPUS != 1 &&
+ !spin_is_locked(&lruvec_zone(lruvec)->lru_lock));
SetPageLRU(page_tail);
* Use the standard add function to put page_tail on the list,
* but then correct its position so they all end up in order.
*/
- add_page_to_lru_list(zone, page_tail, lru);
+ add_page_to_lru_list(page_tail, lruvec, lru);
list_head = page_tail->lru.prev;
list_move_tail(&page_tail->lru, list_head);
}
if (!PageUnevictable(page))
- update_page_reclaim_stat(zone, page_tail, file, active);
+ update_page_reclaim_stat(lruvec, file, active);
}
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
-static void __pagevec_lru_add_fn(struct page *page, void *arg)
+static void __pagevec_lru_add_fn(struct page *page, struct lruvec *lruvec,
+ void *arg)
{
enum lru_list lru = (enum lru_list)arg;
- struct zone *zone = page_zone(page);
int file = is_file_lru(lru);
int active = is_active_lru(lru);
SetPageLRU(page);
if (active)
SetPageActive(page);
- add_page_to_lru_list(zone, page, lru);
- update_page_reclaim_stat(zone, page, file, active);
+ add_page_to_lru_list(page, lruvec, lru);
+ update_page_reclaim_stat(lruvec, file, active);
}
/*
* This does not give an exact answer when swap count is continued,
* but does include the high COUNT_CONTINUED flag to allow for that.
*/
-static inline int page_swapcount(struct page *page)
+int page_swapcount(struct page *page)
{
int count = 0;
struct swap_info_struct *p;
return p != NULL;
}
-#ifdef CONFIG_CGROUP_MEM_RES_CTLR
-/**
- * mem_cgroup_count_swap_user - count the user of a swap entry
- * @ent: the swap entry to be checked
- * @pagep: the pointer for the swap cache page of the entry to be stored
- *
- * Returns the number of the user of the swap entry. The number is valid only
- * for swaps of anonymous pages.
- * If the entry is found on swap cache, the page is stored to pagep with
- * refcount of it being incremented.
- */
-int mem_cgroup_count_swap_user(swp_entry_t ent, struct page **pagep)
-{
- struct page *page;
- struct swap_info_struct *p;
- int count = 0;
-
- page = find_get_page(&swapper_space, ent.val);
- if (page)
- count += page_mapcount(page);
- p = swap_info_get(ent);
- if (p) {
- count += swap_count(p->swap_map[swp_offset(ent)]);
- spin_unlock(&swap_lock);
- }
-
- *pagep = page;
- return count;
-}
-#endif
-
#ifdef CONFIG_HIBERNATION
/*
* Find the swap type that corresponds to given device (if any).
+++ /dev/null
-/*
- * mm/thrash.c
- *
- * Copyright (C) 2004, Red Hat, Inc.
- * Copyright (C) 2004, Rik van Riel <riel@redhat.com>
- * Released under the GPL, see the file COPYING for details.
- *
- * Simple token based thrashing protection, using the algorithm
- * described in: http://www.cse.ohio-state.edu/hpcs/WWW/HTML/publications/abs05-1.html
- *
- * Sep 2006, Ashwin Chaugule <ashwin.chaugule@celunite.com>
- * Improved algorithm to pass token:
- * Each task has a priority which is incremented if it contended
- * for the token in an interval less than its previous attempt.
- * If the token is acquired, that task's priority is boosted to prevent
- * the token from bouncing around too often and to let the task make
- * some progress in its execution.
- */
-
-#include <linux/jiffies.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/swap.h>
-#include <linux/memcontrol.h>
-
-#include <trace/events/vmscan.h>
-
-#define TOKEN_AGING_INTERVAL (0xFF)
-
-static DEFINE_SPINLOCK(swap_token_lock);
-struct mm_struct *swap_token_mm;
-static struct mem_cgroup *swap_token_memcg;
-
-#ifdef CONFIG_CGROUP_MEM_RES_CTLR
-static struct mem_cgroup *swap_token_memcg_from_mm(struct mm_struct *mm)
-{
- struct mem_cgroup *memcg;
-
- memcg = try_get_mem_cgroup_from_mm(mm);
- if (memcg)
- css_put(mem_cgroup_css(memcg));
-
- return memcg;
-}
-#else
-static struct mem_cgroup *swap_token_memcg_from_mm(struct mm_struct *mm)
-{
- return NULL;
-}
-#endif
-
-void grab_swap_token(struct mm_struct *mm)
-{
- int current_interval;
- unsigned int old_prio = mm->token_priority;
- static unsigned int global_faults;
- static unsigned int last_aging;
-
- global_faults++;
-
- current_interval = global_faults - mm->faultstamp;
-
- if (!spin_trylock(&swap_token_lock))
- return;
-
- /* First come first served */
- if (!swap_token_mm)
- goto replace_token;
-
- /*
- * Usually, we don't need priority aging because long interval faults
- * makes priority decrease quickly. But there is one exception. If the
- * token owner task is sleeping, it never make long interval faults.
- * Thus, we need a priority aging mechanism instead. The requirements
- * of priority aging are
- * 1) An aging interval is reasonable enough long. Too short aging
- * interval makes quick swap token lost and decrease performance.
- * 2) The swap token owner task have to get priority aging even if
- * it's under sleep.
- */
- if ((global_faults - last_aging) > TOKEN_AGING_INTERVAL) {
- swap_token_mm->token_priority /= 2;
- last_aging = global_faults;
- }
-
- if (mm == swap_token_mm) {
- mm->token_priority += 2;
- goto update_priority;
- }
-
- if (current_interval < mm->last_interval)
- mm->token_priority++;
- else {
- if (likely(mm->token_priority > 0))
- mm->token_priority--;
- }
-
- /* Check if we deserve the token */
- if (mm->token_priority > swap_token_mm->token_priority)
- goto replace_token;
-
-update_priority:
- trace_update_swap_token_priority(mm, old_prio, swap_token_mm);
-
-out:
- mm->faultstamp = global_faults;
- mm->last_interval = current_interval;
- spin_unlock(&swap_token_lock);
- return;
-
-replace_token:
- mm->token_priority += 2;
- trace_replace_swap_token(swap_token_mm, mm);
- swap_token_mm = mm;
- swap_token_memcg = swap_token_memcg_from_mm(mm);
- last_aging = global_faults;
- goto out;
-}
-
-/* Called on process exit. */
-void __put_swap_token(struct mm_struct *mm)
-{
- spin_lock(&swap_token_lock);
- if (likely(mm == swap_token_mm)) {
- trace_put_swap_token(swap_token_mm);
- swap_token_mm = NULL;
- swap_token_memcg = NULL;
- }
- spin_unlock(&swap_token_lock);
-}
-
-static bool match_memcg(struct mem_cgroup *a, struct mem_cgroup *b)
-{
- if (!a)
- return true;
- if (!b)
- return true;
- if (a == b)
- return true;
- return false;
-}
-
-void disable_swap_token(struct mem_cgroup *memcg)
-{
- /* memcg reclaim don't disable unrelated mm token. */
- if (match_memcg(memcg, swap_token_memcg)) {
- spin_lock(&swap_token_lock);
- if (match_memcg(memcg, swap_token_memcg)) {
- trace_disable_swap_token(swap_token_mm);
- swap_token_mm = NULL;
- swap_token_memcg = NULL;
- }
- spin_unlock(&swap_token_lock);
- }
-}
}
EXPORT_SYMBOL(vmtruncate);
-int vmtruncate_range(struct inode *inode, loff_t lstart, loff_t lend)
-{
- struct address_space *mapping = inode->i_mapping;
- loff_t holebegin = round_up(lstart, PAGE_SIZE);
- loff_t holelen = 1 + lend - holebegin;
-
- /*
- * If the underlying filesystem is not going to provide
- * a way to truncate a range of blocks (punch a hole) -
- * we should return failure right now.
- */
- if (!inode->i_op->truncate_range)
- return -ENOSYS;
-
- mutex_lock(&inode->i_mutex);
- inode_dio_wait(inode);
- unmap_mapping_range(mapping, holebegin, holelen, 1);
- inode->i_op->truncate_range(inode, lstart, lend);
- /* unmap again to remove racily COWed private pages */
- unmap_mapping_range(mapping, holebegin, holelen, 1);
- mutex_unlock(&inode->i_mutex);
-
- return 0;
-}
-
/**
* truncate_pagecache_range - unmap and remove pagecache that is hole-punched
* @inode: inode
#include <linux/export.h>
#include <linux/err.h>
#include <linux/sched.h>
+#include <linux/security.h>
#include <asm/uaccess.h>
#include "internal.h"
}
EXPORT_SYMBOL_GPL(get_user_pages_fast);
+unsigned long vm_mmap_pgoff(struct file *file, unsigned long addr,
+ unsigned long len, unsigned long prot,
+ unsigned long flag, unsigned long pgoff)
+{
+ unsigned long ret;
+ struct mm_struct *mm = current->mm;
+
+ ret = security_mmap_file(file, prot, flag);
+ if (!ret) {
+ down_write(&mm->mmap_sem);
+ ret = do_mmap_pgoff(file, addr, len, prot, flag, pgoff);
+ up_write(&mm->mmap_sem);
+ }
+ return ret;
+}
+
+unsigned long vm_mmap(struct file *file, unsigned long addr,
+ unsigned long len, unsigned long prot,
+ unsigned long flag, unsigned long offset)
+{
+ if (unlikely(offset + PAGE_ALIGN(len) < offset))
+ return -EINVAL;
+ if (unlikely(offset & ~PAGE_MASK))
+ return -EINVAL;
+
+ return vm_mmap_pgoff(file, addr, len, prot, flag, offset >> PAGE_SHIFT);
+}
+EXPORT_SYMBOL(vm_mmap);
+
/* Tracepoints definitions. */
EXPORT_TRACEPOINT_SYMBOL(kmalloc);
EXPORT_TRACEPOINT_SYMBOL(kmem_cache_alloc);
/* Import existing vmlist entries. */
for (tmp = vmlist; tmp; tmp = tmp->next) {
va = kzalloc(sizeof(struct vmap_area), GFP_NOWAIT);
- va->flags = tmp->flags | VM_VM_AREA;
+ va->flags = VM_VM_AREA;
va->va_start = (unsigned long)tmp->addr;
va->va_end = va->va_start + tmp->size;
+ va->vm = tmp;
__insert_vmap_area(va);
}
return NULL;
}
- vms = kzalloc(sizeof(vms[0]) * nr_vms, GFP_KERNEL);
- vas = kzalloc(sizeof(vas[0]) * nr_vms, GFP_KERNEL);
+ vms = kcalloc(nr_vms, sizeof(vms[0]), GFP_KERNEL);
+ vas = kcalloc(nr_vms, sizeof(vas[0]), GFP_KERNEL);
if (!vas || !vms)
goto err_free2;
#define CREATE_TRACE_POINTS
#include <trace/events/vmscan.h>
-/*
- * reclaim_mode determines how the inactive list is shrunk
- * RECLAIM_MODE_SINGLE: Reclaim only order-0 pages
- * RECLAIM_MODE_ASYNC: Do not block
- * RECLAIM_MODE_SYNC: Allow blocking e.g. call wait_on_page_writeback
- * RECLAIM_MODE_LUMPYRECLAIM: For high-order allocations, take a reference
- * page from the LRU and reclaim all pages within a
- * naturally aligned range
- * RECLAIM_MODE_COMPACTION: For high-order allocations, reclaim a number of
- * order-0 pages and then compact the zone
- */
-typedef unsigned __bitwise__ reclaim_mode_t;
-#define RECLAIM_MODE_SINGLE ((__force reclaim_mode_t)0x01u)
-#define RECLAIM_MODE_ASYNC ((__force reclaim_mode_t)0x02u)
-#define RECLAIM_MODE_SYNC ((__force reclaim_mode_t)0x04u)
-#define RECLAIM_MODE_LUMPYRECLAIM ((__force reclaim_mode_t)0x08u)
-#define RECLAIM_MODE_COMPACTION ((__force reclaim_mode_t)0x10u)
-
struct scan_control {
/* Incremented by the number of inactive pages that were scanned */
unsigned long nr_scanned;
int order;
- /*
- * Intend to reclaim enough continuous memory rather than reclaim
- * enough amount of memory. i.e, mode for high order allocation.
- */
- reclaim_mode_t reclaim_mode;
+ /* Scan (total_size >> priority) pages at once */
+ int priority;
/*
* The memory cgroup that hit its limit and as a result is the
nodemask_t *nodemask;
};
-struct mem_cgroup_zone {
- struct mem_cgroup *mem_cgroup;
- struct zone *zone;
-};
-
#define lru_to_page(_head) (list_entry((_head)->prev, struct page, lru))
#ifdef ARCH_HAS_PREFETCH
{
return !sc->target_mem_cgroup;
}
-
-static bool scanning_global_lru(struct mem_cgroup_zone *mz)
-{
- return !mz->mem_cgroup;
-}
#else
static bool global_reclaim(struct scan_control *sc)
{
return true;
}
-
-static bool scanning_global_lru(struct mem_cgroup_zone *mz)
-{
- return true;
-}
#endif
-static struct zone_reclaim_stat *get_reclaim_stat(struct mem_cgroup_zone *mz)
-{
- if (!scanning_global_lru(mz))
- return mem_cgroup_get_reclaim_stat(mz->mem_cgroup, mz->zone);
-
- return &mz->zone->reclaim_stat;
-}
-
-static unsigned long zone_nr_lru_pages(struct mem_cgroup_zone *mz,
- enum lru_list lru)
+static unsigned long get_lru_size(struct lruvec *lruvec, enum lru_list lru)
{
- if (!scanning_global_lru(mz))
- return mem_cgroup_zone_nr_lru_pages(mz->mem_cgroup,
- zone_to_nid(mz->zone),
- zone_idx(mz->zone),
- BIT(lru));
+ if (!mem_cgroup_disabled())
+ return mem_cgroup_get_lru_size(lruvec, lru);
- return zone_page_state(mz->zone, NR_LRU_BASE + lru);
+ return zone_page_state(lruvec_zone(lruvec), NR_LRU_BASE + lru);
}
-
/*
* Add a shrinker callback to be called from the vm
*/
return ret;
}
-static void set_reclaim_mode(int priority, struct scan_control *sc,
- bool sync)
-{
- reclaim_mode_t syncmode = sync ? RECLAIM_MODE_SYNC : RECLAIM_MODE_ASYNC;
-
- /*
- * Initially assume we are entering either lumpy reclaim or
- * reclaim/compaction.Depending on the order, we will either set the
- * sync mode or just reclaim order-0 pages later.
- */
- if (COMPACTION_BUILD)
- sc->reclaim_mode = RECLAIM_MODE_COMPACTION;
- else
- sc->reclaim_mode = RECLAIM_MODE_LUMPYRECLAIM;
-
- /*
- * Avoid using lumpy reclaim or reclaim/compaction if possible by
- * restricting when its set to either costly allocations or when
- * under memory pressure
- */
- if (sc->order > PAGE_ALLOC_COSTLY_ORDER)
- sc->reclaim_mode |= syncmode;
- else if (sc->order && priority < DEF_PRIORITY - 2)
- sc->reclaim_mode |= syncmode;
- else
- sc->reclaim_mode = RECLAIM_MODE_SINGLE | RECLAIM_MODE_ASYNC;
-}
-
-static void reset_reclaim_mode(struct scan_control *sc)
-{
- sc->reclaim_mode = RECLAIM_MODE_SINGLE | RECLAIM_MODE_ASYNC;
-}
-
static inline int is_page_cache_freeable(struct page *page)
{
/*
return 1;
if (bdi == current->backing_dev_info)
return 1;
-
- /* lumpy reclaim for hugepage often need a lot of write */
- if (sc->order > PAGE_ALLOC_COSTLY_ORDER)
- return 1;
return 0;
}
/* synchronous write or broken a_ops? */
ClearPageReclaim(page);
}
- trace_mm_vmscan_writepage(page,
- trace_reclaim_flags(page, sc->reclaim_mode));
+ trace_mm_vmscan_writepage(page, trace_reclaim_flags(page));
inc_zone_page_state(page, NR_VMSCAN_WRITE);
return PAGE_SUCCESS;
}
};
static enum page_references page_check_references(struct page *page,
- struct mem_cgroup_zone *mz,
struct scan_control *sc)
{
int referenced_ptes, referenced_page;
unsigned long vm_flags;
- referenced_ptes = page_referenced(page, 1, mz->mem_cgroup, &vm_flags);
+ referenced_ptes = page_referenced(page, 1, sc->target_mem_cgroup,
+ &vm_flags);
referenced_page = TestClearPageReferenced(page);
- /* Lumpy reclaim - ignore references */
- if (sc->reclaim_mode & RECLAIM_MODE_LUMPYRECLAIM)
- return PAGEREF_RECLAIM;
-
/*
* Mlock lost the isolation race with us. Let try_to_unmap()
* move the page to the unevictable list.
return PAGEREF_RECLAIM;
if (referenced_ptes) {
- if (PageAnon(page))
+ if (PageSwapBacked(page))
return PAGEREF_ACTIVATE;
/*
* All mapped pages start out with page table
* shrink_page_list() returns the number of reclaimed pages
*/
static unsigned long shrink_page_list(struct list_head *page_list,
- struct mem_cgroup_zone *mz,
+ struct zone *zone,
struct scan_control *sc,
- int priority,
unsigned long *ret_nr_dirty,
unsigned long *ret_nr_writeback)
{
goto keep;
VM_BUG_ON(PageActive(page));
- VM_BUG_ON(page_zone(page) != mz->zone);
+ VM_BUG_ON(page_zone(page) != zone);
sc->nr_scanned++;
if (PageWriteback(page)) {
nr_writeback++;
- /*
- * Synchronous reclaim cannot queue pages for
- * writeback due to the possibility of stack overflow
- * but if it encounters a page under writeback, wait
- * for the IO to complete.
- */
- if ((sc->reclaim_mode & RECLAIM_MODE_SYNC) &&
- may_enter_fs)
- wait_on_page_writeback(page);
- else {
- unlock_page(page);
- goto keep_lumpy;
- }
+ unlock_page(page);
+ goto keep;
}
- references = page_check_references(page, mz, sc);
+ references = page_check_references(page, sc);
switch (references) {
case PAGEREF_ACTIVATE:
goto activate_locked;
* unless under significant pressure.
*/
if (page_is_file_cache(page) &&
- (!current_is_kswapd() || priority >= DEF_PRIORITY - 2)) {
+ (!current_is_kswapd() ||
+ sc->priority >= DEF_PRIORITY - 2)) {
/*
* Immediately reclaim when written back.
* Similar in principal to deactivate_page()
goto activate_locked;
case PAGE_SUCCESS:
if (PageWriteback(page))
- goto keep_lumpy;
+ goto keep;
if (PageDirty(page))
goto keep;
try_to_free_swap(page);
unlock_page(page);
putback_lru_page(page);
- reset_reclaim_mode(sc);
continue;
activate_locked:
keep_locked:
unlock_page(page);
keep:
- reset_reclaim_mode(sc);
-keep_lumpy:
list_add(&page->lru, &ret_pages);
VM_BUG_ON(PageLRU(page) || PageUnevictable(page));
}
* will encounter the same problem
*/
if (nr_dirty && nr_dirty == nr_congested && global_reclaim(sc))
- zone_set_flag(mz->zone, ZONE_CONGESTED);
+ zone_set_flag(zone, ZONE_CONGESTED);
free_hot_cold_page_list(&free_pages, 1);
*
* returns 0 on success, -ve errno on failure.
*/
-int __isolate_lru_page(struct page *page, isolate_mode_t mode, int file)
+int __isolate_lru_page(struct page *page, isolate_mode_t mode)
{
- bool all_lru_mode;
int ret = -EINVAL;
/* Only take pages on the LRU. */
if (!PageLRU(page))
return ret;
- all_lru_mode = (mode & (ISOLATE_ACTIVE|ISOLATE_INACTIVE)) ==
- (ISOLATE_ACTIVE|ISOLATE_INACTIVE);
-
- /*
- * When checking the active state, we need to be sure we are
- * dealing with comparible boolean values. Take the logical not
- * of each.
- */
- if (!all_lru_mode && !PageActive(page) != !(mode & ISOLATE_ACTIVE))
- return ret;
-
- if (!all_lru_mode && !!page_is_file_cache(page) != file)
- return ret;
-
- /*
- * When this function is being called for lumpy reclaim, we
- * initially look into all LRU pages, active, inactive and
- * unevictable; only give shrink_page_list evictable pages.
- */
+ /* Do not give back unevictable pages for compaction */
if (PageUnevictable(page))
return ret;
* Appropriate locks must be held before calling this function.
*
* @nr_to_scan: The number of pages to look through on the list.
- * @mz: The mem_cgroup_zone to pull pages from.
+ * @lruvec: The LRU vector to pull pages from.
* @dst: The temp list to put pages on to.
* @nr_scanned: The number of pages that were scanned.
* @sc: The scan_control struct for this reclaim session
* @mode: One of the LRU isolation modes
- * @active: True [1] if isolating active pages
- * @file: True [1] if isolating file [!anon] pages
+ * @lru: LRU list id for isolating
*
* returns how many pages were moved onto *@dst.
*/
static unsigned long isolate_lru_pages(unsigned long nr_to_scan,
- struct mem_cgroup_zone *mz, struct list_head *dst,
+ struct lruvec *lruvec, struct list_head *dst,
unsigned long *nr_scanned, struct scan_control *sc,
- isolate_mode_t mode, int active, int file)
+ isolate_mode_t mode, enum lru_list lru)
{
- struct lruvec *lruvec;
- struct list_head *src;
+ struct list_head *src = &lruvec->lists[lru];
unsigned long nr_taken = 0;
- unsigned long nr_lumpy_taken = 0;
- unsigned long nr_lumpy_dirty = 0;
- unsigned long nr_lumpy_failed = 0;
unsigned long scan;
- int lru = LRU_BASE;
-
- lruvec = mem_cgroup_zone_lruvec(mz->zone, mz->mem_cgroup);
- if (active)
- lru += LRU_ACTIVE;
- if (file)
- lru += LRU_FILE;
- src = &lruvec->lists[lru];
for (scan = 0; scan < nr_to_scan && !list_empty(src); scan++) {
struct page *page;
- unsigned long pfn;
- unsigned long end_pfn;
- unsigned long page_pfn;
- int zone_id;
+ int nr_pages;
page = lru_to_page(src);
prefetchw_prev_lru_page(page, src, flags);
VM_BUG_ON(!PageLRU(page));
- switch (__isolate_lru_page(page, mode, file)) {
+ switch (__isolate_lru_page(page, mode)) {
case 0:
- mem_cgroup_lru_del(page);
+ nr_pages = hpage_nr_pages(page);
+ mem_cgroup_update_lru_size(lruvec, lru, -nr_pages);
list_move(&page->lru, dst);
- nr_taken += hpage_nr_pages(page);
+ nr_taken += nr_pages;
break;
case -EBUSY:
default:
BUG();
}
-
- if (!sc->order || !(sc->reclaim_mode & RECLAIM_MODE_LUMPYRECLAIM))
- continue;
-
- /*
- * Attempt to take all pages in the order aligned region
- * surrounding the tag page. Only take those pages of
- * the same active state as that tag page. We may safely
- * round the target page pfn down to the requested order
- * as the mem_map is guaranteed valid out to MAX_ORDER,
- * where that page is in a different zone we will detect
- * it from its zone id and abort this block scan.
- */
- zone_id = page_zone_id(page);
- page_pfn = page_to_pfn(page);
- pfn = page_pfn & ~((1 << sc->order) - 1);
- end_pfn = pfn + (1 << sc->order);
- for (; pfn < end_pfn; pfn++) {
- struct page *cursor_page;
-
- /* The target page is in the block, ignore it. */
- if (unlikely(pfn == page_pfn))
- continue;
-
- /* Avoid holes within the zone. */
- if (unlikely(!pfn_valid_within(pfn)))
- break;
-
- cursor_page = pfn_to_page(pfn);
-
- /* Check that we have not crossed a zone boundary. */
- if (unlikely(page_zone_id(cursor_page) != zone_id))
- break;
-
- /*
- * If we don't have enough swap space, reclaiming of
- * anon page which don't already have a swap slot is
- * pointless.
- */
- if (nr_swap_pages <= 0 && PageSwapBacked(cursor_page) &&
- !PageSwapCache(cursor_page))
- break;
-
- if (__isolate_lru_page(cursor_page, mode, file) == 0) {
- unsigned int isolated_pages;
-
- mem_cgroup_lru_del(cursor_page);
- list_move(&cursor_page->lru, dst);
- isolated_pages = hpage_nr_pages(cursor_page);
- nr_taken += isolated_pages;
- nr_lumpy_taken += isolated_pages;
- if (PageDirty(cursor_page))
- nr_lumpy_dirty += isolated_pages;
- scan++;
- pfn += isolated_pages - 1;
- } else {
- /*
- * Check if the page is freed already.
- *
- * We can't use page_count() as that
- * requires compound_head and we don't
- * have a pin on the page here. If a
- * page is tail, we may or may not
- * have isolated the head, so assume
- * it's not free, it'd be tricky to
- * track the head status without a
- * page pin.
- */
- if (!PageTail(cursor_page) &&
- !atomic_read(&cursor_page->_count))
- continue;
- break;
- }
- }
-
- /* If we break out of the loop above, lumpy reclaim failed */
- if (pfn < end_pfn)
- nr_lumpy_failed++;
}
*nr_scanned = scan;
-
- trace_mm_vmscan_lru_isolate(sc->order,
- nr_to_scan, scan,
- nr_taken,
- nr_lumpy_taken, nr_lumpy_dirty, nr_lumpy_failed,
- mode, file);
+ trace_mm_vmscan_lru_isolate(sc->order, nr_to_scan, scan,
+ nr_taken, mode, is_file_lru(lru));
return nr_taken;
}
if (PageLRU(page)) {
struct zone *zone = page_zone(page);
+ struct lruvec *lruvec;
spin_lock_irq(&zone->lru_lock);
+ lruvec = mem_cgroup_page_lruvec(page, zone);
if (PageLRU(page)) {
int lru = page_lru(page);
- ret = 0;
get_page(page);
ClearPageLRU(page);
-
- del_page_from_lru_list(zone, page, lru);
+ del_page_from_lru_list(page, lruvec, lru);
+ ret = 0;
}
spin_unlock_irq(&zone->lru_lock);
}
}
static noinline_for_stack void
-putback_inactive_pages(struct mem_cgroup_zone *mz,
- struct list_head *page_list)
+putback_inactive_pages(struct lruvec *lruvec, struct list_head *page_list)
{
- struct zone_reclaim_stat *reclaim_stat = get_reclaim_stat(mz);
- struct zone *zone = mz->zone;
+ struct zone_reclaim_stat *reclaim_stat = &lruvec->reclaim_stat;
+ struct zone *zone = lruvec_zone(lruvec);
LIST_HEAD(pages_to_free);
/*
spin_lock_irq(&zone->lru_lock);
continue;
}
+
+ lruvec = mem_cgroup_page_lruvec(page, zone);
+
SetPageLRU(page);
lru = page_lru(page);
- add_page_to_lru_list(zone, page, lru);
+ add_page_to_lru_list(page, lruvec, lru);
+
if (is_active_lru(lru)) {
int file = is_file_lru(lru);
int numpages = hpage_nr_pages(page);
if (put_page_testzero(page)) {
__ClearPageLRU(page);
__ClearPageActive(page);
- del_page_from_lru_list(zone, page, lru);
+ del_page_from_lru_list(page, lruvec, lru);
if (unlikely(PageCompound(page))) {
spin_unlock_irq(&zone->lru_lock);
list_splice(&pages_to_free, page_list);
}
-static noinline_for_stack void
-update_isolated_counts(struct mem_cgroup_zone *mz,
- struct list_head *page_list,
- unsigned long *nr_anon,
- unsigned long *nr_file)
-{
- struct zone *zone = mz->zone;
- unsigned int count[NR_LRU_LISTS] = { 0, };
- unsigned long nr_active = 0;
- struct page *page;
- int lru;
-
- /*
- * Count pages and clear active flags
- */
- list_for_each_entry(page, page_list, lru) {
- int numpages = hpage_nr_pages(page);
- lru = page_lru_base_type(page);
- if (PageActive(page)) {
- lru += LRU_ACTIVE;
- ClearPageActive(page);
- nr_active += numpages;
- }
- count[lru] += numpages;
- }
-
- preempt_disable();
- __count_vm_events(PGDEACTIVATE, nr_active);
-
- __mod_zone_page_state(zone, NR_ACTIVE_FILE,
- -count[LRU_ACTIVE_FILE]);
- __mod_zone_page_state(zone, NR_INACTIVE_FILE,
- -count[LRU_INACTIVE_FILE]);
- __mod_zone_page_state(zone, NR_ACTIVE_ANON,
- -count[LRU_ACTIVE_ANON]);
- __mod_zone_page_state(zone, NR_INACTIVE_ANON,
- -count[LRU_INACTIVE_ANON]);
-
- *nr_anon = count[LRU_ACTIVE_ANON] + count[LRU_INACTIVE_ANON];
- *nr_file = count[LRU_ACTIVE_FILE] + count[LRU_INACTIVE_FILE];
-
- __mod_zone_page_state(zone, NR_ISOLATED_ANON, *nr_anon);
- __mod_zone_page_state(zone, NR_ISOLATED_FILE, *nr_file);
- preempt_enable();
-}
-
-/*
- * Returns true if a direct reclaim should wait on pages under writeback.
- *
- * If we are direct reclaiming for contiguous pages and we do not reclaim
- * everything in the list, try again and wait for writeback IO to complete.
- * This will stall high-order allocations noticeably. Only do that when really
- * need to free the pages under high memory pressure.
- */
-static inline bool should_reclaim_stall(unsigned long nr_taken,
- unsigned long nr_freed,
- int priority,
- struct scan_control *sc)
-{
- int lumpy_stall_priority;
-
- /* kswapd should not stall on sync IO */
- if (current_is_kswapd())
- return false;
-
- /* Only stall on lumpy reclaim */
- if (sc->reclaim_mode & RECLAIM_MODE_SINGLE)
- return false;
-
- /* If we have reclaimed everything on the isolated list, no stall */
- if (nr_freed == nr_taken)
- return false;
-
- /*
- * For high-order allocations, there are two stall thresholds.
- * High-cost allocations stall immediately where as lower
- * order allocations such as stacks require the scanning
- * priority to be much higher before stalling.
- */
- if (sc->order > PAGE_ALLOC_COSTLY_ORDER)
- lumpy_stall_priority = DEF_PRIORITY;
- else
- lumpy_stall_priority = DEF_PRIORITY / 3;
-
- return priority <= lumpy_stall_priority;
-}
-
/*
* shrink_inactive_list() is a helper for shrink_zone(). It returns the number
* of reclaimed pages
*/
static noinline_for_stack unsigned long
-shrink_inactive_list(unsigned long nr_to_scan, struct mem_cgroup_zone *mz,
- struct scan_control *sc, int priority, int file)
+shrink_inactive_list(unsigned long nr_to_scan, struct lruvec *lruvec,
+ struct scan_control *sc, enum lru_list lru)
{
LIST_HEAD(page_list);
unsigned long nr_scanned;
unsigned long nr_reclaimed = 0;
unsigned long nr_taken;
- unsigned long nr_anon;
- unsigned long nr_file;
unsigned long nr_dirty = 0;
unsigned long nr_writeback = 0;
- isolate_mode_t isolate_mode = ISOLATE_INACTIVE;
- struct zone *zone = mz->zone;
- struct zone_reclaim_stat *reclaim_stat = get_reclaim_stat(mz);
+ isolate_mode_t isolate_mode = 0;
+ int file = is_file_lru(lru);
+ struct zone *zone = lruvec_zone(lruvec);
+ struct zone_reclaim_stat *reclaim_stat = &lruvec->reclaim_stat;
while (unlikely(too_many_isolated(zone, file, sc))) {
congestion_wait(BLK_RW_ASYNC, HZ/10);
return SWAP_CLUSTER_MAX;
}
- set_reclaim_mode(priority, sc, false);
- if (sc->reclaim_mode & RECLAIM_MODE_LUMPYRECLAIM)
- isolate_mode |= ISOLATE_ACTIVE;
-
lru_add_drain();
if (!sc->may_unmap)
spin_lock_irq(&zone->lru_lock);
- nr_taken = isolate_lru_pages(nr_to_scan, mz, &page_list, &nr_scanned,
- sc, isolate_mode, 0, file);
+ nr_taken = isolate_lru_pages(nr_to_scan, lruvec, &page_list,
+ &nr_scanned, sc, isolate_mode, lru);
+
+ __mod_zone_page_state(zone, NR_LRU_BASE + lru, -nr_taken);
+ __mod_zone_page_state(zone, NR_ISOLATED_ANON + file, nr_taken);
+
if (global_reclaim(sc)) {
zone->pages_scanned += nr_scanned;
if (current_is_kswapd())
- __count_zone_vm_events(PGSCAN_KSWAPD, zone,
- nr_scanned);
+ __count_zone_vm_events(PGSCAN_KSWAPD, zone, nr_scanned);
else
- __count_zone_vm_events(PGSCAN_DIRECT, zone,
- nr_scanned);
+ __count_zone_vm_events(PGSCAN_DIRECT, zone, nr_scanned);
}
spin_unlock_irq(&zone->lru_lock);
if (nr_taken == 0)
return 0;
- update_isolated_counts(mz, &page_list, &nr_anon, &nr_file);
-
- nr_reclaimed = shrink_page_list(&page_list, mz, sc, priority,
+ nr_reclaimed = shrink_page_list(&page_list, zone, sc,
&nr_dirty, &nr_writeback);
- /* Check if we should syncronously wait for writeback */
- if (should_reclaim_stall(nr_taken, nr_reclaimed, priority, sc)) {
- set_reclaim_mode(priority, sc, true);
- nr_reclaimed += shrink_page_list(&page_list, mz, sc,
- priority, &nr_dirty, &nr_writeback);
- }
-
spin_lock_irq(&zone->lru_lock);
- reclaim_stat->recent_scanned[0] += nr_anon;
- reclaim_stat->recent_scanned[1] += nr_file;
+ reclaim_stat->recent_scanned[file] += nr_taken;
if (global_reclaim(sc)) {
if (current_is_kswapd())
nr_reclaimed);
}
- putback_inactive_pages(mz, &page_list);
+ putback_inactive_pages(lruvec, &page_list);
- __mod_zone_page_state(zone, NR_ISOLATED_ANON, -nr_anon);
- __mod_zone_page_state(zone, NR_ISOLATED_FILE, -nr_file);
+ __mod_zone_page_state(zone, NR_ISOLATED_ANON + file, -nr_taken);
spin_unlock_irq(&zone->lru_lock);
* DEF_PRIORITY-6 For SWAP_CLUSTER_MAX isolated pages, throttle if any
* isolated page is PageWriteback
*/
- if (nr_writeback && nr_writeback >= (nr_taken >> (DEF_PRIORITY-priority)))
+ if (nr_writeback && nr_writeback >=
+ (nr_taken >> (DEF_PRIORITY - sc->priority)))
wait_iff_congested(zone, BLK_RW_ASYNC, HZ/10);
trace_mm_vmscan_lru_shrink_inactive(zone->zone_pgdat->node_id,
zone_idx(zone),
nr_scanned, nr_reclaimed,
- priority,
- trace_shrink_flags(file, sc->reclaim_mode));
+ sc->priority,
+ trace_shrink_flags(file));
return nr_reclaimed;
}
* But we had to alter page->flags anyway.
*/
-static void move_active_pages_to_lru(struct zone *zone,
+static void move_active_pages_to_lru(struct lruvec *lruvec,
struct list_head *list,
struct list_head *pages_to_free,
enum lru_list lru)
{
+ struct zone *zone = lruvec_zone(lruvec);
unsigned long pgmoved = 0;
struct page *page;
+ int nr_pages;
while (!list_empty(list)) {
- struct lruvec *lruvec;
-
page = lru_to_page(list);
+ lruvec = mem_cgroup_page_lruvec(page, zone);
VM_BUG_ON(PageLRU(page));
SetPageLRU(page);
- lruvec = mem_cgroup_lru_add_list(zone, page, lru);
+ nr_pages = hpage_nr_pages(page);
+ mem_cgroup_update_lru_size(lruvec, lru, nr_pages);
list_move(&page->lru, &lruvec->lists[lru]);
- pgmoved += hpage_nr_pages(page);
+ pgmoved += nr_pages;
if (put_page_testzero(page)) {
__ClearPageLRU(page);
__ClearPageActive(page);
- del_page_from_lru_list(zone, page, lru);
+ del_page_from_lru_list(page, lruvec, lru);
if (unlikely(PageCompound(page))) {
spin_unlock_irq(&zone->lru_lock);
}
static void shrink_active_list(unsigned long nr_to_scan,
- struct mem_cgroup_zone *mz,
+ struct lruvec *lruvec,
struct scan_control *sc,
- int priority, int file)
+ enum lru_list lru)
{
unsigned long nr_taken;
unsigned long nr_scanned;
LIST_HEAD(l_active);
LIST_HEAD(l_inactive);
struct page *page;
- struct zone_reclaim_stat *reclaim_stat = get_reclaim_stat(mz);
+ struct zone_reclaim_stat *reclaim_stat = &lruvec->reclaim_stat;
unsigned long nr_rotated = 0;
- isolate_mode_t isolate_mode = ISOLATE_ACTIVE;
- struct zone *zone = mz->zone;
+ isolate_mode_t isolate_mode = 0;
+ int file = is_file_lru(lru);
+ struct zone *zone = lruvec_zone(lruvec);
lru_add_drain();
- reset_reclaim_mode(sc);
-
if (!sc->may_unmap)
isolate_mode |= ISOLATE_UNMAPPED;
if (!sc->may_writepage)
spin_lock_irq(&zone->lru_lock);
- nr_taken = isolate_lru_pages(nr_to_scan, mz, &l_hold, &nr_scanned, sc,
- isolate_mode, 1, file);
+ nr_taken = isolate_lru_pages(nr_to_scan, lruvec, &l_hold,
+ &nr_scanned, sc, isolate_mode, lru);
if (global_reclaim(sc))
zone->pages_scanned += nr_scanned;
reclaim_stat->recent_scanned[file] += nr_taken;
__count_zone_vm_events(PGREFILL, zone, nr_scanned);
- if (file)
- __mod_zone_page_state(zone, NR_ACTIVE_FILE, -nr_taken);
- else
- __mod_zone_page_state(zone, NR_ACTIVE_ANON, -nr_taken);
+ __mod_zone_page_state(zone, NR_LRU_BASE + lru, -nr_taken);
__mod_zone_page_state(zone, NR_ISOLATED_ANON + file, nr_taken);
spin_unlock_irq(&zone->lru_lock);
}
}
- if (page_referenced(page, 0, mz->mem_cgroup, &vm_flags)) {
+ if (page_referenced(page, 0, sc->target_mem_cgroup,
+ &vm_flags)) {
nr_rotated += hpage_nr_pages(page);
/*
* Identify referenced, file-backed active pages and
*/
reclaim_stat->recent_rotated[file] += nr_rotated;
- move_active_pages_to_lru(zone, &l_active, &l_hold,
- LRU_ACTIVE + file * LRU_FILE);
- move_active_pages_to_lru(zone, &l_inactive, &l_hold,
- LRU_BASE + file * LRU_FILE);
+ move_active_pages_to_lru(lruvec, &l_active, &l_hold, lru);
+ move_active_pages_to_lru(lruvec, &l_inactive, &l_hold, lru - LRU_ACTIVE);
__mod_zone_page_state(zone, NR_ISOLATED_ANON + file, -nr_taken);
spin_unlock_irq(&zone->lru_lock);
/**
* inactive_anon_is_low - check if anonymous pages need to be deactivated
- * @zone: zone to check
- * @sc: scan control of this context
+ * @lruvec: LRU vector to check
*
* Returns true if the zone does not have enough inactive anon pages,
* meaning some active anon pages need to be deactivated.
*/
-static int inactive_anon_is_low(struct mem_cgroup_zone *mz)
+static int inactive_anon_is_low(struct lruvec *lruvec)
{
/*
* If we don't have swap space, anonymous page deactivation
if (!total_swap_pages)
return 0;
- if (!scanning_global_lru(mz))
- return mem_cgroup_inactive_anon_is_low(mz->mem_cgroup,
- mz->zone);
+ if (!mem_cgroup_disabled())
+ return mem_cgroup_inactive_anon_is_low(lruvec);
- return inactive_anon_is_low_global(mz->zone);
+ return inactive_anon_is_low_global(lruvec_zone(lruvec));
}
#else
-static inline int inactive_anon_is_low(struct mem_cgroup_zone *mz)
+static inline int inactive_anon_is_low(struct lruvec *lruvec)
{
return 0;
}
/**
* inactive_file_is_low - check if file pages need to be deactivated
- * @mz: memory cgroup and zone to check
+ * @lruvec: LRU vector to check
*
* When the system is doing streaming IO, memory pressure here
* ensures that active file pages get deactivated, until more
* This uses a different ratio than the anonymous pages, because
* the page cache uses a use-once replacement algorithm.
*/
-static int inactive_file_is_low(struct mem_cgroup_zone *mz)
+static int inactive_file_is_low(struct lruvec *lruvec)
{
- if (!scanning_global_lru(mz))
- return mem_cgroup_inactive_file_is_low(mz->mem_cgroup,
- mz->zone);
+ if (!mem_cgroup_disabled())
+ return mem_cgroup_inactive_file_is_low(lruvec);
- return inactive_file_is_low_global(mz->zone);
+ return inactive_file_is_low_global(lruvec_zone(lruvec));
}
-static int inactive_list_is_low(struct mem_cgroup_zone *mz, int file)
+static int inactive_list_is_low(struct lruvec *lruvec, enum lru_list lru)
{
- if (file)
- return inactive_file_is_low(mz);
+ if (is_file_lru(lru))
+ return inactive_file_is_low(lruvec);
else
- return inactive_anon_is_low(mz);
+ return inactive_anon_is_low(lruvec);
}
static unsigned long shrink_list(enum lru_list lru, unsigned long nr_to_scan,
- struct mem_cgroup_zone *mz,
- struct scan_control *sc, int priority)
+ struct lruvec *lruvec, struct scan_control *sc)
{
- int file = is_file_lru(lru);
-
if (is_active_lru(lru)) {
- if (inactive_list_is_low(mz, file))
- shrink_active_list(nr_to_scan, mz, sc, priority, file);
+ if (inactive_list_is_low(lruvec, lru))
+ shrink_active_list(nr_to_scan, lruvec, sc, lru);
return 0;
}
- return shrink_inactive_list(nr_to_scan, mz, sc, priority, file);
+ return shrink_inactive_list(nr_to_scan, lruvec, sc, lru);
}
-static int vmscan_swappiness(struct mem_cgroup_zone *mz,
- struct scan_control *sc)
+static int vmscan_swappiness(struct scan_control *sc)
{
if (global_reclaim(sc))
return vm_swappiness;
- return mem_cgroup_swappiness(mz->mem_cgroup);
+ return mem_cgroup_swappiness(sc->target_mem_cgroup);
}
/*
*
* nr[0] = anon pages to scan; nr[1] = file pages to scan
*/
-static void get_scan_count(struct mem_cgroup_zone *mz, struct scan_control *sc,
- unsigned long *nr, int priority)
+static void get_scan_count(struct lruvec *lruvec, struct scan_control *sc,
+ unsigned long *nr)
{
unsigned long anon, file, free;
unsigned long anon_prio, file_prio;
unsigned long ap, fp;
- struct zone_reclaim_stat *reclaim_stat = get_reclaim_stat(mz);
+ struct zone_reclaim_stat *reclaim_stat = &lruvec->reclaim_stat;
u64 fraction[2], denominator;
enum lru_list lru;
int noswap = 0;
bool force_scan = false;
+ struct zone *zone = lruvec_zone(lruvec);
/*
* If the zone or memcg is small, nr[l] can be 0. This
* latencies, so it's better to scan a minimum amount there as
* well.
*/
- if (current_is_kswapd() && mz->zone->all_unreclaimable)
+ if (current_is_kswapd() && zone->all_unreclaimable)
force_scan = true;
if (!global_reclaim(sc))
force_scan = true;
goto out;
}
- anon = zone_nr_lru_pages(mz, LRU_ACTIVE_ANON) +
- zone_nr_lru_pages(mz, LRU_INACTIVE_ANON);
- file = zone_nr_lru_pages(mz, LRU_ACTIVE_FILE) +
- zone_nr_lru_pages(mz, LRU_INACTIVE_FILE);
+ anon = get_lru_size(lruvec, LRU_ACTIVE_ANON) +
+ get_lru_size(lruvec, LRU_INACTIVE_ANON);
+ file = get_lru_size(lruvec, LRU_ACTIVE_FILE) +
+ get_lru_size(lruvec, LRU_INACTIVE_FILE);
if (global_reclaim(sc)) {
- free = zone_page_state(mz->zone, NR_FREE_PAGES);
+ free = zone_page_state(zone, NR_FREE_PAGES);
/* If we have very few page cache pages,
force-scan anon pages. */
- if (unlikely(file + free <= high_wmark_pages(mz->zone))) {
+ if (unlikely(file + free <= high_wmark_pages(zone))) {
fraction[0] = 1;
fraction[1] = 0;
denominator = 1;
* With swappiness at 100, anonymous and file have the same priority.
* This scanning priority is essentially the inverse of IO cost.
*/
- anon_prio = vmscan_swappiness(mz, sc);
- file_prio = 200 - vmscan_swappiness(mz, sc);
+ anon_prio = vmscan_swappiness(sc);
+ file_prio = 200 - anon_prio;
/*
* OK, so we have swap space and a fair amount of page cache
*
* anon in [0], file in [1]
*/
- spin_lock_irq(&mz->zone->lru_lock);
+ spin_lock_irq(&zone->lru_lock);
if (unlikely(reclaim_stat->recent_scanned[0] > anon / 4)) {
reclaim_stat->recent_scanned[0] /= 2;
reclaim_stat->recent_rotated[0] /= 2;
* proportional to the fraction of recently scanned pages on
* each list that were recently referenced and in active use.
*/
- ap = (anon_prio + 1) * (reclaim_stat->recent_scanned[0] + 1);
+ ap = anon_prio * (reclaim_stat->recent_scanned[0] + 1);
ap /= reclaim_stat->recent_rotated[0] + 1;
- fp = (file_prio + 1) * (reclaim_stat->recent_scanned[1] + 1);
+ fp = file_prio * (reclaim_stat->recent_scanned[1] + 1);
fp /= reclaim_stat->recent_rotated[1] + 1;
- spin_unlock_irq(&mz->zone->lru_lock);
+ spin_unlock_irq(&zone->lru_lock);
fraction[0] = ap;
fraction[1] = fp;
int file = is_file_lru(lru);
unsigned long scan;
- scan = zone_nr_lru_pages(mz, lru);
- if (priority || noswap) {
- scan >>= priority;
+ scan = get_lru_size(lruvec, lru);
+ if (sc->priority || noswap || !vmscan_swappiness(sc)) {
+ scan >>= sc->priority;
if (!scan && force_scan)
scan = SWAP_CLUSTER_MAX;
scan = div64_u64(scan * fraction[file], denominator);
}
}
+/* Use reclaim/compaction for costly allocs or under memory pressure */
+static bool in_reclaim_compaction(struct scan_control *sc)
+{
+ if (COMPACTION_BUILD && sc->order &&
+ (sc->order > PAGE_ALLOC_COSTLY_ORDER ||
+ sc->priority < DEF_PRIORITY - 2))
+ return true;
+
+ return false;
+}
+
/*
- * Reclaim/compaction depends on a number of pages being freed. To avoid
- * disruption to the system, a small number of order-0 pages continue to be
- * rotated and reclaimed in the normal fashion. However, by the time we get
- * back to the allocator and call try_to_compact_zone(), we ensure that
- * there are enough free pages for it to be likely successful
+ * Reclaim/compaction is used for high-order allocation requests. It reclaims
+ * order-0 pages before compacting the zone. should_continue_reclaim() returns
+ * true if more pages should be reclaimed such that when the page allocator
+ * calls try_to_compact_zone() that it will have enough free pages to succeed.
+ * It will give up earlier than that if there is difficulty reclaiming pages.
*/
-static inline bool should_continue_reclaim(struct mem_cgroup_zone *mz,
+static inline bool should_continue_reclaim(struct lruvec *lruvec,
unsigned long nr_reclaimed,
unsigned long nr_scanned,
struct scan_control *sc)
unsigned long inactive_lru_pages;
/* If not in reclaim/compaction mode, stop */
- if (!(sc->reclaim_mode & RECLAIM_MODE_COMPACTION))
+ if (!in_reclaim_compaction(sc))
return false;
/* Consider stopping depending on scan and reclaim activity */
* inactive lists are large enough, continue reclaiming
*/
pages_for_compaction = (2UL << sc->order);
- inactive_lru_pages = zone_nr_lru_pages(mz, LRU_INACTIVE_FILE);
+ inactive_lru_pages = get_lru_size(lruvec, LRU_INACTIVE_FILE);
if (nr_swap_pages > 0)
- inactive_lru_pages += zone_nr_lru_pages(mz, LRU_INACTIVE_ANON);
+ inactive_lru_pages += get_lru_size(lruvec, LRU_INACTIVE_ANON);
if (sc->nr_reclaimed < pages_for_compaction &&
inactive_lru_pages > pages_for_compaction)
return true;
/* If compaction would go ahead or the allocation would succeed, stop */
- switch (compaction_suitable(mz->zone, sc->order)) {
+ switch (compaction_suitable(lruvec_zone(lruvec), sc->order)) {
case COMPACT_PARTIAL:
case COMPACT_CONTINUE:
return false;
/*
* This is a basic per-zone page freer. Used by both kswapd and direct reclaim.
*/
-static void shrink_mem_cgroup_zone(int priority, struct mem_cgroup_zone *mz,
- struct scan_control *sc)
+static void shrink_lruvec(struct lruvec *lruvec, struct scan_control *sc)
{
unsigned long nr[NR_LRU_LISTS];
unsigned long nr_to_scan;
restart:
nr_reclaimed = 0;
nr_scanned = sc->nr_scanned;
- get_scan_count(mz, sc, nr, priority);
+ get_scan_count(lruvec, sc, nr);
blk_start_plug(&plug);
while (nr[LRU_INACTIVE_ANON] || nr[LRU_ACTIVE_FILE] ||
nr[lru] -= nr_to_scan;
nr_reclaimed += shrink_list(lru, nr_to_scan,
- mz, sc, priority);
+ lruvec, sc);
}
}
/*
* with multiple processes reclaiming pages, the total
* freeing target can get unreasonably large.
*/
- if (nr_reclaimed >= nr_to_reclaim && priority < DEF_PRIORITY)
+ if (nr_reclaimed >= nr_to_reclaim &&
+ sc->priority < DEF_PRIORITY)
break;
}
blk_finish_plug(&plug);
* Even if we did not try to evict anon pages at all, we want to
* rebalance the anon lru active/inactive ratio.
*/
- if (inactive_anon_is_low(mz))
- shrink_active_list(SWAP_CLUSTER_MAX, mz, sc, priority, 0);
+ if (inactive_anon_is_low(lruvec))
+ shrink_active_list(SWAP_CLUSTER_MAX, lruvec,
+ sc, LRU_ACTIVE_ANON);
/* reclaim/compaction might need reclaim to continue */
- if (should_continue_reclaim(mz, nr_reclaimed,
- sc->nr_scanned - nr_scanned, sc))
+ if (should_continue_reclaim(lruvec, nr_reclaimed,
+ sc->nr_scanned - nr_scanned, sc))
goto restart;
throttle_vm_writeout(sc->gfp_mask);
}
-static void shrink_zone(int priority, struct zone *zone,
- struct scan_control *sc)
+static void shrink_zone(struct zone *zone, struct scan_control *sc)
{
struct mem_cgroup *root = sc->target_mem_cgroup;
struct mem_cgroup_reclaim_cookie reclaim = {
.zone = zone,
- .priority = priority,
+ .priority = sc->priority,
};
struct mem_cgroup *memcg;
memcg = mem_cgroup_iter(root, NULL, &reclaim);
do {
- struct mem_cgroup_zone mz = {
- .mem_cgroup = memcg,
- .zone = zone,
- };
+ struct lruvec *lruvec = mem_cgroup_zone_lruvec(zone, memcg);
+
+ shrink_lruvec(lruvec, sc);
- shrink_mem_cgroup_zone(priority, &mz, sc);
/*
* Limit reclaim has historically picked one memcg and
* scanned it with decreasing priority levels until
* the caller that it should consider retrying the allocation instead of
* further reclaim.
*/
-static bool shrink_zones(int priority, struct zonelist *zonelist,
- struct scan_control *sc)
+static bool shrink_zones(struct zonelist *zonelist, struct scan_control *sc)
{
struct zoneref *z;
struct zone *zone;
if (global_reclaim(sc)) {
if (!cpuset_zone_allowed_hardwall(zone, GFP_KERNEL))
continue;
- if (zone->all_unreclaimable && priority != DEF_PRIORITY)
+ if (zone->all_unreclaimable &&
+ sc->priority != DEF_PRIORITY)
continue; /* Let kswapd poll it */
if (COMPACTION_BUILD) {
/*
/* need some check for avoid more shrink_zone() */
}
- shrink_zone(priority, zone, sc);
+ shrink_zone(zone, sc);
}
return aborted_reclaim;
struct scan_control *sc,
struct shrink_control *shrink)
{
- int priority;
unsigned long total_scanned = 0;
struct reclaim_state *reclaim_state = current->reclaim_state;
struct zoneref *z;
if (global_reclaim(sc))
count_vm_event(ALLOCSTALL);
- for (priority = DEF_PRIORITY; priority >= 0; priority--) {
+ do {
sc->nr_scanned = 0;
- if (!priority)
- disable_swap_token(sc->target_mem_cgroup);
- aborted_reclaim = shrink_zones(priority, zonelist, sc);
+ aborted_reclaim = shrink_zones(zonelist, sc);
/*
* Don't shrink slabs when reclaiming memory from
/* Take a nap, wait for some writeback to complete */
if (!sc->hibernation_mode && sc->nr_scanned &&
- priority < DEF_PRIORITY - 2) {
+ sc->priority < DEF_PRIORITY - 2) {
struct zone *preferred_zone;
first_zones_zonelist(zonelist, gfp_zone(sc->gfp_mask),
&preferred_zone);
wait_iff_congested(preferred_zone, BLK_RW_ASYNC, HZ/10);
}
- }
+ } while (--sc->priority >= 0);
out:
delayacct_freepages_end();
.may_unmap = 1,
.may_swap = 1,
.order = order,
+ .priority = DEF_PRIORITY,
.target_mem_cgroup = NULL,
.nodemask = nodemask,
};
.may_unmap = 1,
.may_swap = !noswap,
.order = 0,
+ .priority = 0,
.target_mem_cgroup = memcg,
};
- struct mem_cgroup_zone mz = {
- .mem_cgroup = memcg,
- .zone = zone,
- };
+ struct lruvec *lruvec = mem_cgroup_zone_lruvec(zone, memcg);
sc.gfp_mask = (gfp_mask & GFP_RECLAIM_MASK) |
(GFP_HIGHUSER_MOVABLE & ~GFP_RECLAIM_MASK);
- trace_mm_vmscan_memcg_softlimit_reclaim_begin(0,
+ trace_mm_vmscan_memcg_softlimit_reclaim_begin(sc.order,
sc.may_writepage,
sc.gfp_mask);
* will pick up pages from other mem cgroup's as well. We hack
* the priority and make it zero.
*/
- shrink_mem_cgroup_zone(0, &mz, &sc);
+ shrink_lruvec(lruvec, &sc);
trace_mm_vmscan_memcg_softlimit_reclaim_end(sc.nr_reclaimed);
.may_swap = !noswap,
.nr_to_reclaim = SWAP_CLUSTER_MAX,
.order = 0,
+ .priority = DEF_PRIORITY,
.target_mem_cgroup = memcg,
.nodemask = NULL, /* we don't care the placement */
.gfp_mask = (gfp_mask & GFP_RECLAIM_MASK) |
}
#endif
-static void age_active_anon(struct zone *zone, struct scan_control *sc,
- int priority)
+static void age_active_anon(struct zone *zone, struct scan_control *sc)
{
struct mem_cgroup *memcg;
memcg = mem_cgroup_iter(NULL, NULL, NULL);
do {
- struct mem_cgroup_zone mz = {
- .mem_cgroup = memcg,
- .zone = zone,
- };
+ struct lruvec *lruvec = mem_cgroup_zone_lruvec(zone, memcg);
- if (inactive_anon_is_low(&mz))
- shrink_active_list(SWAP_CLUSTER_MAX, &mz,
- sc, priority, 0);
+ if (inactive_anon_is_low(lruvec))
+ shrink_active_list(SWAP_CLUSTER_MAX, lruvec,
+ sc, LRU_ACTIVE_ANON);
memcg = mem_cgroup_iter(NULL, memcg, NULL);
} while (memcg);
{
int all_zones_ok;
unsigned long balanced;
- int priority;
int i;
int end_zone = 0; /* Inclusive. 0 = ZONE_DMA */
unsigned long total_scanned;
};
loop_again:
total_scanned = 0;
+ sc.priority = DEF_PRIORITY;
sc.nr_reclaimed = 0;
sc.may_writepage = !laptop_mode;
count_vm_event(PAGEOUTRUN);
- for (priority = DEF_PRIORITY; priority >= 0; priority--) {
+ do {
unsigned long lru_pages = 0;
int has_under_min_watermark_zone = 0;
- /* The swap token gets in the way of swapout... */
- if (!priority)
- disable_swap_token(NULL);
-
all_zones_ok = 1;
balanced = 0;
if (!populated_zone(zone))
continue;
- if (zone->all_unreclaimable && priority != DEF_PRIORITY)
+ if (zone->all_unreclaimable &&
+ sc.priority != DEF_PRIORITY)
continue;
/*
* Do some background aging of the anon list, to give
* pages a chance to be referenced before reclaiming.
*/
- age_active_anon(zone, &sc, priority);
+ age_active_anon(zone, &sc);
/*
* If the number of buffer_heads in the machine
if (!populated_zone(zone))
continue;
- if (zone->all_unreclaimable && priority != DEF_PRIORITY)
+ if (zone->all_unreclaimable &&
+ sc.priority != DEF_PRIORITY)
continue;
sc.nr_scanned = 0;
!zone_watermark_ok_safe(zone, testorder,
high_wmark_pages(zone) + balance_gap,
end_zone, 0)) {
- shrink_zone(priority, zone, &sc);
+ shrink_zone(zone, &sc);
reclaim_state->reclaimed_slab = 0;
nr_slab = shrink_slab(&shrink, sc.nr_scanned, lru_pages);
* OK, kswapd is getting into trouble. Take a nap, then take
* another pass across the zones.
*/
- if (total_scanned && (priority < DEF_PRIORITY - 2)) {
+ if (total_scanned && (sc.priority < DEF_PRIORITY - 2)) {
if (has_under_min_watermark_zone)
count_vm_event(KSWAPD_SKIP_CONGESTION_WAIT);
else
*/
if (sc.nr_reclaimed >= SWAP_CLUSTER_MAX)
break;
- }
+ } while (--sc.priority >= 0);
out:
/*
if (!populated_zone(zone))
continue;
- if (zone->all_unreclaimable && priority != DEF_PRIORITY)
+ if (zone->all_unreclaimable &&
+ sc.priority != DEF_PRIORITY)
continue;
/* Would compaction fail due to lack of free memory? */
.nr_to_reclaim = nr_to_reclaim,
.hibernation_mode = 1,
.order = 0,
+ .priority = DEF_PRIORITY,
};
struct shrink_control shrink = {
.gfp_mask = sc.gfp_mask,
const unsigned long nr_pages = 1 << order;
struct task_struct *p = current;
struct reclaim_state reclaim_state;
- int priority;
struct scan_control sc = {
.may_writepage = !!(zone_reclaim_mode & RECLAIM_WRITE),
.may_unmap = !!(zone_reclaim_mode & RECLAIM_SWAP),
SWAP_CLUSTER_MAX),
.gfp_mask = gfp_mask,
.order = order,
+ .priority = ZONE_RECLAIM_PRIORITY,
};
struct shrink_control shrink = {
.gfp_mask = sc.gfp_mask,
* Free memory by calling shrink zone with increasing
* priorities until we have enough memory freed.
*/
- priority = ZONE_RECLAIM_PRIORITY;
do {
- shrink_zone(priority, zone, &sc);
- priority--;
- } while (priority >= 0 && sc.nr_reclaimed < nr_pages);
+ shrink_zone(zone, &sc);
+ } while (sc.nr_reclaimed < nr_pages && --sc.priority >= 0);
}
nr_slab_pages0 = zone_page_state(zone, NR_SLAB_RECLAIMABLE);
if (mapping_unevictable(page_mapping(page)))
return 0;
- if (PageMlocked(page) || (vma && is_mlocked_vma(vma, page)))
+ if (PageMlocked(page) || (vma && mlocked_vma_newpage(vma, page)))
return 0;
return 1;
zone = pagezone;
spin_lock_irq(&zone->lru_lock);
}
+ lruvec = mem_cgroup_page_lruvec(page, zone);
if (!PageLRU(page) || !PageUnevictable(page))
continue;
VM_BUG_ON(PageActive(page));
ClearPageUnevictable(page);
- __dec_zone_state(zone, NR_UNEVICTABLE);
- lruvec = mem_cgroup_lru_move_lists(zone, page,
- LRU_UNEVICTABLE, lru);
- list_move(&page->lru, &lruvec->lists[lru]);
- __inc_zone_state(zone, NR_INACTIVE_ANON + lru);
+ del_page_from_lru_list(page, lruvec, LRU_UNEVICTABLE);
+ add_page_to_lru_list(page, lruvec, lru);
pgrescued++;
}
}
#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_COMPACTION)
#include <linux/debugfs.h>
-static struct dentry *extfrag_debug_root;
/*
* Return an index indicating how much of the available free memory is
static int __init extfrag_debug_init(void)
{
+ struct dentry *extfrag_debug_root;
+
extfrag_debug_root = debugfs_create_dir("extfrag", NULL);
if (!extfrag_debug_root)
return -ENOMEM;
if (!debugfs_create_file("unusable_index", 0444,
extfrag_debug_root, NULL, &unusable_file_ops))
- return -ENOMEM;
+ goto fail;
if (!debugfs_create_file("extfrag_index", 0444,
extfrag_debug_root, NULL, &extfrag_file_ops))
- return -ENOMEM;
+ goto fail;
return 0;
+fail:
+ debugfs_remove_recursive(extfrag_debug_root);
+ return -ENOMEM;
}
module_init(extfrag_debug_init);
*/
static int ceph_auth_none_create_authorizer(
struct ceph_auth_client *ac, int peer_type,
- struct ceph_authorizer **a,
- void **buf, size_t *len,
- void **reply_buf, size_t *reply_len)
+ struct ceph_auth_handshake *auth)
{
struct ceph_auth_none_info *ai = ac->private;
struct ceph_none_authorizer *au = &ai->au;
dout("built authorizer len %d\n", au->buf_len);
}
- *a = (struct ceph_authorizer *)au;
- *buf = au->buf;
- *len = au->buf_len;
- *reply_buf = au->reply_buf;
- *reply_len = sizeof(au->reply_buf);
+ auth->authorizer = (struct ceph_authorizer *) au;
+ auth->authorizer_buf = au->buf;
+ auth->authorizer_buf_len = au->buf_len;
+ auth->authorizer_reply_buf = au->reply_buf;
+ auth->authorizer_reply_buf_len = sizeof (au->reply_buf);
+
return 0;
bad2:
static int ceph_x_create_authorizer(
struct ceph_auth_client *ac, int peer_type,
- struct ceph_authorizer **a,
- void **buf, size_t *len,
- void **reply_buf, size_t *reply_len)
+ struct ceph_auth_handshake *auth)
{
struct ceph_x_authorizer *au;
struct ceph_x_ticket_handler *th;
return ret;
}
- *a = (struct ceph_authorizer *)au;
- *buf = au->buf->vec.iov_base;
- *len = au->buf->vec.iov_len;
- *reply_buf = au->reply_buf;
- *reply_len = sizeof(au->reply_buf);
+ auth->authorizer = (struct ceph_authorizer *) au;
+ auth->authorizer_buf = au->buf->vec.iov_base;
+ auth->authorizer_buf_len = au->buf->vec.iov_len;
+ auth->authorizer_reply_buf = au->reply_buf;
+ auth->authorizer_reply_buf_len = sizeof (au->reply_buf);
+
return 0;
}
* @b: bucket pointer
* @p: item index in bucket
*/
-int crush_get_bucket_item_weight(struct crush_bucket *b, int p)
+int crush_get_bucket_item_weight(const struct crush_bucket *b, int p)
{
- if (p >= b->size)
+ if ((__u32)p >= b->size)
return 0;
switch (b->alg) {
case CRUSH_BUCKET_LIST:
return ((struct crush_bucket_list *)b)->item_weights[p];
case CRUSH_BUCKET_TREE:
- if (p & 1)
- return ((struct crush_bucket_tree *)b)->node_weights[p];
- return 0;
+ return ((struct crush_bucket_tree *)b)->node_weights[crush_calc_tree_node(p)];
case CRUSH_BUCKET_STRAW:
return ((struct crush_bucket_straw *)b)->item_weights[p];
}
return 0;
}
-/**
- * crush_calc_parents - Calculate parent vectors for the given crush map.
- * @map: crush_map pointer
- */
-void crush_calc_parents(struct crush_map *map)
-{
- int i, b, c;
-
- for (b = 0; b < map->max_buckets; b++) {
- if (map->buckets[b] == NULL)
- continue;
- for (i = 0; i < map->buckets[b]->size; i++) {
- c = map->buckets[b]->items[i];
- BUG_ON(c >= map->max_devices ||
- c < -map->max_buckets);
- if (c >= 0)
- map->device_parents[c] = map->buckets[b]->id;
- else
- map->bucket_parents[-1-c] = map->buckets[b]->id;
- }
- }
-}
-
void crush_destroy_bucket_uniform(struct crush_bucket_uniform *b)
{
kfree(b->h.perm);
void crush_destroy_bucket_tree(struct crush_bucket_tree *b)
{
+ kfree(b->h.perm);
+ kfree(b->h.items);
kfree(b->node_weights);
kfree(b);
}
*/
void crush_destroy(struct crush_map *map)
{
- int b;
-
/* buckets */
if (map->buckets) {
+ __s32 b;
for (b = 0; b < map->max_buckets; b++) {
if (map->buckets[b] == NULL)
continue;
/* rules */
if (map->rules) {
+ __u32 b;
for (b = 0; b < map->max_rules; b++)
kfree(map->rules[b]);
kfree(map->rules);
}
- kfree(map->bucket_parents);
- kfree(map->device_parents);
kfree(map);
}
* @type: storage ruleset type (user defined)
* @size: output set size
*/
-int crush_find_rule(struct crush_map *map, int ruleset, int type, int size)
+int crush_find_rule(const struct crush_map *map, int ruleset, int type, int size)
{
- int i;
+ __u32 i;
for (i = 0; i < map->max_rules; i++) {
if (map->rules[i] &&
unsigned int i, s;
/* start a new permutation if @x has changed */
- if (bucket->perm_x != x || bucket->perm_n == 0) {
+ if (bucket->perm_x != (__u32)x || bucket->perm_n == 0) {
dprintk("bucket %d new x=%d\n", bucket->id, x);
bucket->perm_x = x;
return bucket->h.items[i];
}
- BUG_ON(1);
- return 0;
+ dprintk("bad list sums for bucket %d\n", bucket->h.id);
+ return bucket->h.items[0];
}
static int bucket_straw_choose(struct crush_bucket_straw *bucket,
int x, int r)
{
- int i;
+ __u32 i;
int high = 0;
__u64 high_draw = 0;
__u64 draw;
static int crush_bucket_choose(struct crush_bucket *in, int x, int r)
{
dprintk(" crush_bucket_choose %d x=%d r=%d\n", in->id, x, r);
+ BUG_ON(in->size == 0);
switch (in->alg) {
case CRUSH_BUCKET_UNIFORM:
return bucket_uniform_choose((struct crush_bucket_uniform *)in,
return bucket_straw_choose((struct crush_bucket_straw *)in,
x, r);
default:
- BUG_ON(1);
+ dprintk("unknown bucket %d alg %d\n", in->id, in->alg);
return in->items[0];
}
}
* true if device is marked "out" (failed, fully offloaded)
* of the cluster
*/
-static int is_out(struct crush_map *map, __u32 *weight, int item, int x)
+static int is_out(const struct crush_map *map, const __u32 *weight, int item, int x)
{
if (weight[item] >= 0x10000)
return 0;
* @recurse_to_leaf: true if we want one device under each item of given type
* @out2: second output vector for leaf items (if @recurse_to_leaf)
*/
-static int crush_choose(struct crush_map *map,
+static int crush_choose(const struct crush_map *map,
struct crush_bucket *bucket,
- __u32 *weight,
+ const __u32 *weight,
int x, int numrep, int type,
int *out, int outpos,
int firstn, int recurse_to_leaf,
int *out2)
{
int rep;
- int ftotal, flocal;
+ unsigned int ftotal, flocal;
int retry_descent, retry_bucket, skip_rep;
struct crush_bucket *in = bucket;
int r;
int item = 0;
int itemtype;
int collide, reject;
- const int orig_tries = 5; /* attempts before we fall back to search */
+ const unsigned int orig_tries = 5; /* attempts before we fall back to search */
dprintk("CHOOSE%s bucket %d x %d outpos %d numrep %d\n", recurse_to_leaf ? "_LEAF" : "",
bucket->id, x, outpos, numrep);
r = rep;
if (in->alg == CRUSH_BUCKET_UNIFORM) {
/* be careful */
- if (firstn || numrep >= in->size)
+ if (firstn || (__u32)numrep >= in->size)
/* r' = r + f_total */
r += ftotal;
else if (in->size % numrep == 0)
item = bucket_perm_choose(in, x, r);
else
item = crush_bucket_choose(in, x, r);
- BUG_ON(item >= map->max_devices);
+ if (item >= map->max_devices) {
+ dprintk(" bad item %d\n", item);
+ skip_rep = 1;
+ break;
+ }
/* desired type? */
if (item < 0)
/* keep going? */
if (itemtype != type) {
- BUG_ON(item >= 0 ||
- (-1-item) >= map->max_buckets);
+ if (item >= 0 ||
+ (-1-item) >= map->max_buckets) {
+ dprintk(" bad item type %d\n", type);
+ skip_rep = 1;
+ break;
+ }
in = map->buckets[-1-item];
retry_bucket = 1;
continue;
if (collide && flocal < 3)
/* retry locally a few times */
retry_bucket = 1;
- else if (flocal < in->size + orig_tries)
+ else if (flocal <= in->size + orig_tries)
/* exhaustive bucket search */
retry_bucket = 1;
else if (ftotal < 20)
/* else give up */
skip_rep = 1;
dprintk(" reject %d collide %d "
- "ftotal %d flocal %d\n",
+ "ftotal %u flocal %u\n",
reject, collide, ftotal,
flocal);
}
* @x: hash input
* @result: pointer to result vector
* @result_max: maximum result size
- * @force: force initial replica choice; -1 for none
*/
-int crush_do_rule(struct crush_map *map,
+int crush_do_rule(const struct crush_map *map,
int ruleno, int x, int *result, int result_max,
- int force, __u32 *weight)
+ const __u32 *weight)
{
int result_len;
- int force_context[CRUSH_MAX_DEPTH];
- int force_pos = -1;
int a[CRUSH_MAX_SET];
int b[CRUSH_MAX_SET];
int c[CRUSH_MAX_SET];
int osize;
int *tmp;
struct crush_rule *rule;
- int step;
+ __u32 step;
int i, j;
int numrep;
int firstn;
- BUG_ON(ruleno >= map->max_rules);
+ if ((__u32)ruleno >= map->max_rules) {
+ dprintk(" bad ruleno %d\n", ruleno);
+ return 0;
+ }
rule = map->rules[ruleno];
result_len = 0;
w = a;
o = b;
- /*
- * determine hierarchical context of force, if any. note
- * that this may or may not correspond to the specific types
- * referenced by the crush rule.
- */
- if (force >= 0 &&
- force < map->max_devices &&
- map->device_parents[force] != 0 &&
- !is_out(map, weight, force, x)) {
- while (1) {
- force_context[++force_pos] = force;
- if (force >= 0)
- force = map->device_parents[force];
- else
- force = map->bucket_parents[-1-force];
- if (force == 0)
- break;
- }
- }
-
for (step = 0; step < rule->len; step++) {
+ struct crush_rule_step *curstep = &rule->steps[step];
+
firstn = 0;
- switch (rule->steps[step].op) {
+ switch (curstep->op) {
case CRUSH_RULE_TAKE:
- w[0] = rule->steps[step].arg1;
-
- /* find position in force_context/hierarchy */
- while (force_pos >= 0 &&
- force_context[force_pos] != w[0])
- force_pos--;
- /* and move past it */
- if (force_pos >= 0)
- force_pos--;
-
+ w[0] = curstep->arg1;
wsize = 1;
break;
case CRUSH_RULE_CHOOSE_LEAF_FIRSTN:
case CRUSH_RULE_CHOOSE_FIRSTN:
firstn = 1;
+ /* fall through */
case CRUSH_RULE_CHOOSE_LEAF_INDEP:
case CRUSH_RULE_CHOOSE_INDEP:
- BUG_ON(wsize == 0);
+ if (wsize == 0)
+ break;
recurse_to_leaf =
- rule->steps[step].op ==
+ curstep->op ==
CRUSH_RULE_CHOOSE_LEAF_FIRSTN ||
- rule->steps[step].op ==
+ curstep->op ==
CRUSH_RULE_CHOOSE_LEAF_INDEP;
/* reset output */
* basically, numrep <= 0 means relative to
* the provided result_max
*/
- numrep = rule->steps[step].arg1;
+ numrep = curstep->arg1;
if (numrep <= 0) {
numrep += result_max;
if (numrep <= 0)
continue;
}
j = 0;
- if (osize == 0 && force_pos >= 0) {
- /* skip any intermediate types */
- while (force_pos &&
- force_context[force_pos] < 0 &&
- rule->steps[step].arg2 !=
- map->buckets[-1 -
- force_context[force_pos]]->type)
- force_pos--;
- o[osize] = force_context[force_pos];
- if (recurse_to_leaf)
- c[osize] = force_context[0];
- j++;
- force_pos--;
- }
osize += crush_choose(map,
map->buckets[-1-w[i]],
weight,
x, numrep,
- rule->steps[step].arg2,
+ curstep->arg2,
o+osize, j,
firstn,
recurse_to_leaf, c+osize);
break;
default:
- BUG_ON(1);
+ dprintk(" unknown op %d at step %d\n",
+ curstep->op, step);
+ break;
}
}
return result_len;
* Connection negotiation.
*/
-static int prepare_connect_authorizer(struct ceph_connection *con)
+static struct ceph_auth_handshake *get_connect_authorizer(struct ceph_connection *con,
+ int *auth_proto)
{
- void *auth_buf;
- int auth_len = 0;
- int auth_protocol = 0;
+ struct ceph_auth_handshake *auth;
+
+ if (!con->ops->get_authorizer) {
+ con->out_connect.authorizer_protocol = CEPH_AUTH_UNKNOWN;
+ con->out_connect.authorizer_len = 0;
+
+ return NULL;
+ }
+
+ /* Can't hold the mutex while getting authorizer */
mutex_unlock(&con->mutex);
- if (con->ops->get_authorizer)
- con->ops->get_authorizer(con, &auth_buf, &auth_len,
- &auth_protocol, &con->auth_reply_buf,
- &con->auth_reply_buf_len,
- con->auth_retry);
+
+ auth = con->ops->get_authorizer(con, auth_proto, con->auth_retry);
+
mutex_lock(&con->mutex);
- if (test_bit(CLOSED, &con->state) ||
- test_bit(OPENING, &con->state))
- return -EAGAIN;
+ if (IS_ERR(auth))
+ return auth;
+ if (test_bit(CLOSED, &con->state) || test_bit(OPENING, &con->state))
+ return ERR_PTR(-EAGAIN);
- con->out_connect.authorizer_protocol = cpu_to_le32(auth_protocol);
- con->out_connect.authorizer_len = cpu_to_le32(auth_len);
+ con->auth_reply_buf = auth->authorizer_reply_buf;
+ con->auth_reply_buf_len = auth->authorizer_reply_buf_len;
- if (auth_len)
- ceph_con_out_kvec_add(con, auth_len, auth_buf);
- return 0;
+ return auth;
}
/*
* We connected to a peer and are saying hello.
*/
-static void prepare_write_banner(struct ceph_messenger *msgr,
- struct ceph_connection *con)
+static void prepare_write_banner(struct ceph_connection *con)
{
- ceph_con_out_kvec_reset(con);
ceph_con_out_kvec_add(con, strlen(CEPH_BANNER), CEPH_BANNER);
- ceph_con_out_kvec_add(con, sizeof (msgr->my_enc_addr),
- &msgr->my_enc_addr);
+ ceph_con_out_kvec_add(con, sizeof (con->msgr->my_enc_addr),
+ &con->msgr->my_enc_addr);
con->out_more = 0;
set_bit(WRITE_PENDING, &con->state);
}
-static int prepare_write_connect(struct ceph_messenger *msgr,
- struct ceph_connection *con,
- int include_banner)
+static int prepare_write_connect(struct ceph_connection *con)
{
unsigned int global_seq = get_global_seq(con->msgr, 0);
int proto;
+ int auth_proto;
+ struct ceph_auth_handshake *auth;
switch (con->peer_name.type) {
case CEPH_ENTITY_TYPE_MON:
dout("prepare_write_connect %p cseq=%d gseq=%d proto=%d\n", con,
con->connect_seq, global_seq, proto);
- con->out_connect.features = cpu_to_le64(msgr->supported_features);
+ con->out_connect.features = cpu_to_le64(con->msgr->supported_features);
con->out_connect.host_type = cpu_to_le32(CEPH_ENTITY_TYPE_CLIENT);
con->out_connect.connect_seq = cpu_to_le32(con->connect_seq);
con->out_connect.global_seq = cpu_to_le32(global_seq);
con->out_connect.protocol_version = cpu_to_le32(proto);
con->out_connect.flags = 0;
- if (include_banner)
- prepare_write_banner(msgr, con);
- else
- ceph_con_out_kvec_reset(con);
- ceph_con_out_kvec_add(con, sizeof (con->out_connect), &con->out_connect);
+ auth_proto = CEPH_AUTH_UNKNOWN;
+ auth = get_connect_authorizer(con, &auth_proto);
+ if (IS_ERR(auth))
+ return PTR_ERR(auth);
+
+ con->out_connect.authorizer_protocol = cpu_to_le32(auth_proto);
+ con->out_connect.authorizer_len = auth ?
+ cpu_to_le32(auth->authorizer_buf_len) : 0;
+
+ ceph_con_out_kvec_add(con, sizeof (con->out_connect),
+ &con->out_connect);
+ if (auth && auth->authorizer_buf_len)
+ ceph_con_out_kvec_add(con, auth->authorizer_buf_len,
+ auth->authorizer_buf);
con->out_more = 0;
set_bit(WRITE_PENDING, &con->state);
- return prepare_connect_authorizer(con);
+ return 0;
}
/*
static int read_partial(struct ceph_connection *con,
- int *to, int size, void *object)
+ int end, int size, void *object)
{
- *to += size;
- while (con->in_base_pos < *to) {
- int left = *to - con->in_base_pos;
+ while (con->in_base_pos < end) {
+ int left = end - con->in_base_pos;
int have = size - left;
int ret = ceph_tcp_recvmsg(con->sock, object + have, left);
if (ret <= 0)
*/
static int read_partial_banner(struct ceph_connection *con)
{
- int ret, to = 0;
+ int size;
+ int end;
+ int ret;
dout("read_partial_banner %p at %d\n", con, con->in_base_pos);
/* peer's banner */
- ret = read_partial(con, &to, strlen(CEPH_BANNER), con->in_banner);
+ size = strlen(CEPH_BANNER);
+ end = size;
+ ret = read_partial(con, end, size, con->in_banner);
if (ret <= 0)
goto out;
- ret = read_partial(con, &to, sizeof(con->actual_peer_addr),
- &con->actual_peer_addr);
+
+ size = sizeof (con->actual_peer_addr);
+ end += size;
+ ret = read_partial(con, end, size, &con->actual_peer_addr);
if (ret <= 0)
goto out;
- ret = read_partial(con, &to, sizeof(con->peer_addr_for_me),
- &con->peer_addr_for_me);
+
+ size = sizeof (con->peer_addr_for_me);
+ end += size;
+ ret = read_partial(con, end, size, &con->peer_addr_for_me);
if (ret <= 0)
goto out;
+
out:
return ret;
}
static int read_partial_connect(struct ceph_connection *con)
{
- int ret, to = 0;
+ int size;
+ int end;
+ int ret;
dout("read_partial_connect %p at %d\n", con, con->in_base_pos);
- ret = read_partial(con, &to, sizeof(con->in_reply), &con->in_reply);
+ size = sizeof (con->in_reply);
+ end = size;
+ ret = read_partial(con, end, size, &con->in_reply);
if (ret <= 0)
goto out;
- ret = read_partial(con, &to, le32_to_cpu(con->in_reply.authorizer_len),
- con->auth_reply_buf);
+
+ size = le32_to_cpu(con->in_reply.authorizer_len);
+ end += size;
+ ret = read_partial(con, end, size, con->auth_reply_buf);
if (ret <= 0)
goto out;
return -1;
}
con->auth_retry = 1;
- ret = prepare_write_connect(con->msgr, con, 0);
+ ceph_con_out_kvec_reset(con);
+ ret = prepare_write_connect(con);
if (ret < 0)
return ret;
prepare_read_connect(con);
ENTITY_NAME(con->peer_name),
ceph_pr_addr(&con->peer_addr.in_addr));
reset_connection(con);
- prepare_write_connect(con->msgr, con, 0);
+ ceph_con_out_kvec_reset(con);
+ ret = prepare_write_connect(con);
+ if (ret < 0)
+ return ret;
prepare_read_connect(con);
/* Tell ceph about it. */
le32_to_cpu(con->out_connect.connect_seq),
le32_to_cpu(con->in_connect.connect_seq));
con->connect_seq = le32_to_cpu(con->in_connect.connect_seq);
- prepare_write_connect(con->msgr, con, 0);
+ ceph_con_out_kvec_reset(con);
+ ret = prepare_write_connect(con);
+ if (ret < 0)
+ return ret;
prepare_read_connect(con);
break;
le32_to_cpu(con->in_connect.global_seq));
get_global_seq(con->msgr,
le32_to_cpu(con->in_connect.global_seq));
- prepare_write_connect(con->msgr, con, 0);
+ ceph_con_out_kvec_reset(con);
+ ret = prepare_write_connect(con);
+ if (ret < 0)
+ return ret;
prepare_read_connect(con);
break;
*/
static int read_partial_ack(struct ceph_connection *con)
{
- int to = 0;
+ int size = sizeof (con->in_temp_ack);
+ int end = size;
- return read_partial(con, &to, sizeof(con->in_temp_ack),
- &con->in_temp_ack);
+ return read_partial(con, end, size, &con->in_temp_ack);
}
static int read_partial_message(struct ceph_connection *con)
{
struct ceph_msg *m = con->in_msg;
+ int size;
+ int end;
int ret;
- int to, left;
unsigned int front_len, middle_len, data_len;
bool do_datacrc = !con->msgr->nocrc;
int skip;
dout("read_partial_message con %p msg %p\n", con, m);
/* header */
- while (con->in_base_pos < sizeof(con->in_hdr)) {
- left = sizeof(con->in_hdr) - con->in_base_pos;
- ret = ceph_tcp_recvmsg(con->sock,
- (char *)&con->in_hdr + con->in_base_pos,
- left);
- if (ret <= 0)
- return ret;
- con->in_base_pos += ret;
- }
+ size = sizeof (con->in_hdr);
+ end = size;
+ ret = read_partial(con, end, size, &con->in_hdr);
+ if (ret <= 0)
+ return ret;
crc = crc32c(0, &con->in_hdr, offsetof(struct ceph_msg_header, crc));
if (cpu_to_le32(crc) != con->in_hdr.crc) {
}
/* footer */
- to = sizeof(m->hdr) + sizeof(m->footer);
- while (con->in_base_pos < to) {
- left = to - con->in_base_pos;
- ret = ceph_tcp_recvmsg(con->sock, (char *)&m->footer +
- (con->in_base_pos - sizeof(m->hdr)),
- left);
- if (ret <= 0)
- return ret;
- con->in_base_pos += ret;
- }
+ size = sizeof (m->footer);
+ end += size;
+ ret = read_partial(con, end, size, &m->footer);
+ if (ret <= 0)
+ return ret;
+
dout("read_partial_message got msg %p %d (%u) + %d (%u) + %d (%u)\n",
m, front_len, m->footer.front_crc, middle_len,
m->footer.middle_crc, data_len, m->footer.data_crc);
*/
static int try_write(struct ceph_connection *con)
{
- struct ceph_messenger *msgr = con->msgr;
int ret = 1;
dout("try_write start %p state %lu nref %d\n", con, con->state,
/* open the socket first? */
if (con->sock == NULL) {
- prepare_write_connect(msgr, con, 1);
+ ceph_con_out_kvec_reset(con);
+ prepare_write_banner(con);
+ ret = prepare_write_connect(con);
+ if (ret < 0)
+ goto out;
prepare_read_banner(con);
set_bit(CONNECTING, &con->state);
clear_bit(NEGOTIATING, &con->state);
{
dst->op = cpu_to_le16(src->op);
- switch (dst->op) {
+ switch (src->op) {
case CEPH_OSD_OP_READ:
case CEPH_OSD_OP_WRITE:
dst->extent.offset =
{
dout("put_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref),
atomic_read(&osd->o_ref) - 1);
- if (atomic_dec_and_test(&osd->o_ref)) {
+ if (atomic_dec_and_test(&osd->o_ref) && osd->o_auth.authorizer) {
struct ceph_auth_client *ac = osd->o_osdc->client->monc.auth;
- if (osd->o_authorizer)
- ac->ops->destroy_authorizer(ac, osd->o_authorizer);
+ if (ac->ops && ac->ops->destroy_authorizer)
+ ac->ops->destroy_authorizer(ac, osd->o_auth.authorizer);
kfree(osd);
}
}
static void __unregister_request(struct ceph_osd_client *osdc,
struct ceph_osd_request *req)
{
+ if (RB_EMPTY_NODE(&req->r_node)) {
+ dout("__unregister_request %p tid %lld not registered\n",
+ req, req->r_tid);
+ return;
+ }
+
dout("__unregister_request %p tid %lld\n", req, req->r_tid);
rb_erase(&req->r_node, &osdc->requests);
osdc->num_requests--;
/*
* authentication
*/
-static int get_authorizer(struct ceph_connection *con,
- void **buf, int *len, int *proto,
- void **reply_buf, int *reply_len, int force_new)
+/*
+ * Note: returned pointer is the address of a structure that's
+ * managed separately. Caller must *not* attempt to free it.
+ */
+static struct ceph_auth_handshake *get_authorizer(struct ceph_connection *con,
+ int *proto, int force_new)
{
struct ceph_osd *o = con->private;
struct ceph_osd_client *osdc = o->o_osdc;
struct ceph_auth_client *ac = osdc->client->monc.auth;
- int ret = 0;
+ struct ceph_auth_handshake *auth = &o->o_auth;
- if (force_new && o->o_authorizer) {
- ac->ops->destroy_authorizer(ac, o->o_authorizer);
- o->o_authorizer = NULL;
- }
- if (o->o_authorizer == NULL) {
- ret = ac->ops->create_authorizer(
- ac, CEPH_ENTITY_TYPE_OSD,
- &o->o_authorizer,
- &o->o_authorizer_buf,
- &o->o_authorizer_buf_len,
- &o->o_authorizer_reply_buf,
- &o->o_authorizer_reply_buf_len);
+ if (force_new && auth->authorizer) {
+ if (ac->ops && ac->ops->destroy_authorizer)
+ ac->ops->destroy_authorizer(ac, auth->authorizer);
+ auth->authorizer = NULL;
+ }
+ if (!auth->authorizer && ac->ops && ac->ops->create_authorizer) {
+ int ret = ac->ops->create_authorizer(ac, CEPH_ENTITY_TYPE_OSD,
+ auth);
if (ret)
- return ret;
+ return ERR_PTR(ret);
}
-
*proto = ac->protocol;
- *buf = o->o_authorizer_buf;
- *len = o->o_authorizer_buf_len;
- *reply_buf = o->o_authorizer_reply_buf;
- *reply_len = o->o_authorizer_reply_buf_len;
- return 0;
+
+ return auth;
}
struct ceph_osd_client *osdc = o->o_osdc;
struct ceph_auth_client *ac = osdc->client->monc.auth;
- return ac->ops->verify_authorizer_reply(ac, o->o_authorizer, len);
+ /*
+ * XXX If ac->ops or ac->ops->verify_authorizer_reply is null,
+ * XXX which do we do: succeed or fail?
+ */
+ return ac->ops->verify_authorizer_reply(ac, o->o_auth.authorizer, len);
}
static int invalidate_authorizer(struct ceph_connection *con)
struct ceph_osd_client *osdc = o->o_osdc;
struct ceph_auth_client *ac = osdc->client->monc.auth;
- if (ac->ops->invalidate_authorizer)
+ if (ac->ops && ac->ops->invalidate_authorizer)
ac->ops->invalidate_authorizer(ac, CEPH_ENTITY_TYPE_OSD);
return ceph_monc_validate_auth(&osdc->client->monc);
c->max_rules = ceph_decode_32(p);
c->max_devices = ceph_decode_32(p);
- c->device_parents = kcalloc(c->max_devices, sizeof(u32), GFP_NOFS);
- if (c->device_parents == NULL)
- goto badmem;
- c->bucket_parents = kcalloc(c->max_buckets, sizeof(u32), GFP_NOFS);
- if (c->bucket_parents == NULL)
- goto badmem;
-
c->buckets = kcalloc(c->max_buckets, sizeof(*c->buckets), GFP_NOFS);
if (c->buckets == NULL)
goto badmem;
pglen = ceph_decode_32(p);
if (pglen) {
- /* insert */
ceph_decode_need(p, end, pglen*sizeof(u32), bad);
+
+ /* removing existing (if any) */
+ (void) __remove_pg_mapping(&map->pg_temp, pgid);
+
+ /* insert */
pg = kmalloc(sizeof(*pg) + sizeof(u32)*pglen, GFP_NOFS);
if (!pg) {
err = -ENOMEM;
{
unsigned int num, num_mask;
struct ceph_pg pgid;
- s32 preferred = (s32)le32_to_cpu(fl->fl_pg_preferred);
int poolid = le32_to_cpu(fl->fl_pg_pool);
struct ceph_pg_pool_info *pool;
unsigned int ps;
if (!pool)
return -EIO;
ps = ceph_str_hash(pool->v.object_hash, oid, strlen(oid));
- if (preferred >= 0) {
- ps += preferred;
- num = le32_to_cpu(pool->v.lpg_num);
- num_mask = pool->lpg_num_mask;
- } else {
- num = le32_to_cpu(pool->v.pg_num);
- num_mask = pool->pg_num_mask;
- }
+ num = le32_to_cpu(pool->v.pg_num);
+ num_mask = pool->pg_num_mask;
pgid.ps = cpu_to_le16(ps);
- pgid.preferred = cpu_to_le16(preferred);
+ pgid.preferred = cpu_to_le16(-1);
pgid.pool = fl->fl_pg_pool;
- if (preferred >= 0)
- dout("calc_object_layout '%s' pgid %d.%xp%d\n", oid, poolid, ps,
- (int)preferred);
- else
- dout("calc_object_layout '%s' pgid %d.%x\n", oid, poolid, ps);
+ dout("calc_object_layout '%s' pgid %d.%x\n", oid, poolid, ps);
ol->ol_pgid = pgid;
ol->ol_stripe_unit = fl->fl_object_stripe_unit;
struct ceph_pg_mapping *pg;
struct ceph_pg_pool_info *pool;
int ruleno;
- unsigned int poolid, ps, pps, t;
- int preferred;
+ unsigned int poolid, ps, pps, t, r;
poolid = le32_to_cpu(pgid.pool);
ps = le16_to_cpu(pgid.ps);
- preferred = (s16)le16_to_cpu(pgid.preferred);
pool = __lookup_pg_pool(&osdmap->pg_pools, poolid);
if (!pool)
return NULL;
/* pg_temp? */
- if (preferred >= 0)
- t = ceph_stable_mod(ps, le32_to_cpu(pool->v.lpg_num),
- pool->lpgp_num_mask);
- else
- t = ceph_stable_mod(ps, le32_to_cpu(pool->v.pg_num),
- pool->pgp_num_mask);
+ t = ceph_stable_mod(ps, le32_to_cpu(pool->v.pg_num),
+ pool->pgp_num_mask);
pgid.ps = cpu_to_le16(t);
pg = __lookup_pg_mapping(&osdmap->pg_temp, pgid);
if (pg) {
return NULL;
}
- /* don't forcefeed bad device ids to crush */
- if (preferred >= osdmap->max_osd ||
- preferred >= osdmap->crush->max_devices)
- preferred = -1;
-
- if (preferred >= 0)
- pps = ceph_stable_mod(ps,
- le32_to_cpu(pool->v.lpgp_num),
- pool->lpgp_num_mask);
- else
- pps = ceph_stable_mod(ps,
- le32_to_cpu(pool->v.pgp_num),
- pool->pgp_num_mask);
+ pps = ceph_stable_mod(ps,
+ le32_to_cpu(pool->v.pgp_num),
+ pool->pgp_num_mask);
pps += poolid;
- *num = crush_do_rule(osdmap->crush, ruleno, pps, osds,
- min_t(int, pool->v.size, *num),
- preferred, osdmap->osd_weight);
+ r = crush_do_rule(osdmap->crush, ruleno, pps, osds,
+ min_t(int, pool->v.size, *num),
+ osdmap->osd_weight);
+ if (r < 0) {
+ pr_err("error %d from crush rule: pool %d ruleset %d type %d"
+ " size %d\n", r, poolid, pool->v.crush_ruleset,
+ pool->v.type, pool->v.size);
+ return NULL;
+ }
+ *num = r;
return osds;
}
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Neil Horman <nhorman@tuxdriver.com>");
+MODULE_ALIAS_GENL_FAMILY("NET_DM");
struct esp_data *esp = x->data;
u32 blksize = ALIGN(crypto_aead_blocksize(esp->aead), 4);
u32 align = max_t(u32, blksize, esp->padlen);
- u32 rem;
-
- mtu -= x->props.header_len + crypto_aead_authsize(esp->aead);
- rem = mtu & (align - 1);
- mtu &= ~(align - 1);
+ unsigned int net_adj;
switch (x->props.mode) {
- case XFRM_MODE_TUNNEL:
- break;
- default:
case XFRM_MODE_TRANSPORT:
- /* The worst case */
- mtu -= blksize - 4;
- mtu += min_t(u32, blksize - 4, rem);
- break;
case XFRM_MODE_BEET:
- /* The worst case. */
- mtu += min_t(u32, IPV4_BEET_PHMAXLEN, rem);
+ net_adj = sizeof(struct iphdr);
break;
+ case XFRM_MODE_TUNNEL:
+ net_adj = 0;
+ break;
+ default:
+ BUG();
}
- return mtu - 2;
+ return ((mtu - x->props.header_len - crypto_aead_authsize(esp->aead) -
+ net_adj) & ~(align - 1)) + (net_adj - 2);
}
static void esp4_err(struct sk_buff *skb, u32 info)
percpu_counter_destroy(&tcp->tcp_sockets_allocated);
val = res_counter_read_u64(&tcp->tcp_memory_allocated, RES_LIMIT);
-
- if (val != RESOURCE_MAX)
- static_key_slow_dec(&memcg_socket_limit_enabled);
}
EXPORT_SYMBOL(tcp_destroy_cgroup);
tcp->tcp_prot_mem[i] = min_t(long, val >> PAGE_SHIFT,
net->ipv4.sysctl_tcp_mem[i]);
- if (val == RESOURCE_MAX && old_lim != RESOURCE_MAX)
- static_key_slow_dec(&memcg_socket_limit_enabled);
- else if (old_lim == RESOURCE_MAX && val != RESOURCE_MAX)
- static_key_slow_inc(&memcg_socket_limit_enabled);
+ if (val == RESOURCE_MAX)
+ clear_bit(MEMCG_SOCK_ACTIVE, &cg_proto->flags);
+ else if (val != RESOURCE_MAX) {
+ /*
+ * The active bit needs to be written after the static_key
+ * update. This is what guarantees that the socket activation
+ * function is the last one to run. See sock_update_memcg() for
+ * details, and note that we don't mark any socket as belonging
+ * to this memcg until that flag is up.
+ *
+ * We need to do this, because static_keys will span multiple
+ * sites, but we can't control their order. If we mark a socket
+ * as accounted, but the accounting functions are not patched in
+ * yet, we'll lose accounting.
+ *
+ * We never race with the readers in sock_update_memcg(),
+ * because when this value change, the code to process it is not
+ * patched in yet.
+ *
+ * The activated bit is used to guarantee that no two writers
+ * will do the update in the same memcg. Without that, we can't
+ * properly shutdown the static key.
+ */
+ if (!test_and_set_bit(MEMCG_SOCK_ACTIVATED, &cg_proto->flags))
+ static_key_slow_inc(&memcg_socket_limit_enabled);
+ set_bit(MEMCG_SOCK_ACTIVE, &cg_proto->flags);
+ }
return 0;
}
struct esp_data *esp = x->data;
u32 blksize = ALIGN(crypto_aead_blocksize(esp->aead), 4);
u32 align = max_t(u32, blksize, esp->padlen);
- u32 rem;
+ unsigned int net_adj;
- mtu -= x->props.header_len + crypto_aead_authsize(esp->aead);
- rem = mtu & (align - 1);
- mtu &= ~(align - 1);
-
- if (x->props.mode != XFRM_MODE_TUNNEL) {
- u32 padsize = ((blksize - 1) & 7) + 1;
- mtu -= blksize - padsize;
- mtu += min_t(u32, blksize - padsize, rem);
- }
+ if (x->props.mode != XFRM_MODE_TUNNEL)
+ net_adj = sizeof(struct ipv6hdr);
+ else
+ net_adj = 0;
- return mtu - 2;
+ return ((mtu - x->props.header_len - crypto_aead_authsize(esp->aead) -
+ net_adj) & ~(align - 1)) + (net_adj - 2);
}
static void esp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
return src ? kmemdup(src, (src->hdrlen + 1) * 8, gfp) : NULL;
}
+static void ip6_append_data_mtu(int *mtu,
+ int *maxfraglen,
+ unsigned int fragheaderlen,
+ struct sk_buff *skb,
+ struct rt6_info *rt)
+{
+ if (!(rt->dst.flags & DST_XFRM_TUNNEL)) {
+ if (skb == NULL) {
+ /* first fragment, reserve header_len */
+ *mtu = *mtu - rt->dst.header_len;
+
+ } else {
+ /*
+ * this fragment is not first, the headers
+ * space is regarded as data space.
+ */
+ *mtu = dst_mtu(rt->dst.path);
+ }
+ *maxfraglen = ((*mtu - fragheaderlen) & ~7)
+ + fragheaderlen - sizeof(struct frag_hdr);
+ }
+}
+
int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
int offset, int len, int odd, struct sk_buff *skb),
void *from, int length, int transhdrlen,
struct inet_sock *inet = inet_sk(sk);
struct ipv6_pinfo *np = inet6_sk(sk);
struct inet_cork *cork;
- struct sk_buff *skb;
+ struct sk_buff *skb, *skb_prev = NULL;
unsigned int maxfraglen, fragheaderlen;
int exthdrlen;
int dst_exthdrlen;
inet->cork.fl.u.ip6 = *fl6;
np->cork.hop_limit = hlimit;
np->cork.tclass = tclass;
- mtu = np->pmtudisc == IPV6_PMTUDISC_PROBE ?
- rt->dst.dev->mtu : dst_mtu(&rt->dst);
+ if (rt->dst.flags & DST_XFRM_TUNNEL)
+ mtu = np->pmtudisc == IPV6_PMTUDISC_PROBE ?
+ rt->dst.dev->mtu : dst_mtu(&rt->dst);
+ else
+ mtu = np->pmtudisc == IPV6_PMTUDISC_PROBE ?
+ rt->dst.dev->mtu : dst_mtu(rt->dst.path);
if (np->frag_size < mtu) {
if (np->frag_size)
mtu = np->frag_size;
unsigned int fraglen;
unsigned int fraggap;
unsigned int alloclen;
- struct sk_buff *skb_prev;
alloc_new_skb:
- skb_prev = skb;
-
/* There's no room in the current skb */
- if (skb_prev)
- fraggap = skb_prev->len - maxfraglen;
+ if (skb)
+ fraggap = skb->len - maxfraglen;
else
fraggap = 0;
+ /* update mtu and maxfraglen if necessary */
+ if (skb == NULL || skb_prev == NULL)
+ ip6_append_data_mtu(&mtu, &maxfraglen,
+ fragheaderlen, skb, rt);
+
+ skb_prev = skb;
/*
* If remaining data exceeds the mtu,
* we know we need more fragment(s).
*/
datalen = length + fraggap;
- if (datalen > (cork->length <= mtu && !(cork->flags & IPCORK_ALLFRAG) ? mtu : maxfraglen) - fragheaderlen)
- datalen = maxfraglen - fragheaderlen;
- fraglen = datalen + fragheaderlen;
+ if (datalen > (cork->length <= mtu && !(cork->flags & IPCORK_ALLFRAG) ? mtu : maxfraglen) - fragheaderlen)
+ datalen = maxfraglen - fragheaderlen - rt->dst.trailer_len;
if ((flags & MSG_MORE) &&
!(rt->dst.dev->features&NETIF_F_SG))
alloclen = mtu;
alloclen += dst_exthdrlen;
- /*
- * The last fragment gets additional space at tail.
- * Note: we overallocate on fragments with MSG_MODE
- * because we have no idea if we're the last one.
- */
- if (datalen == length + fraggap)
- alloclen += rt->dst.trailer_len;
+ if (datalen != length + fraggap) {
+ /*
+ * this is not the last fragment, the trailer
+ * space is regarded as data space.
+ */
+ datalen += rt->dst.trailer_len;
+ }
+
+ alloclen += rt->dst.trailer_len;
+ fraglen = datalen + fragheaderlen;
/*
* We just reserve space for fragment header.
{
struct inet_sock *inet = inet_sk(sk);
struct sockaddr_l2tpip *addr = (struct sockaddr_l2tpip *) uaddr;
- int ret = -EINVAL;
+ int ret;
int chk_addr_ret;
+ if (!sock_flag(sk, SOCK_ZAPPED))
+ return -EINVAL;
+ if (addr_len < sizeof(struct sockaddr_l2tpip))
+ return -EINVAL;
+ if (addr->l2tp_family != AF_INET)
+ return -EINVAL;
+
ret = -EADDRINUSE;
read_lock_bh(&l2tp_ip_lock);
if (__l2tp_ip_bind_lookup(&init_net, addr->l2tp_addr.s_addr, sk->sk_bound_dev_if, addr->l2tp_conn_id))
sk_del_node_init(sk);
write_unlock_bh(&l2tp_ip_lock);
ret = 0;
+ sock_reset_flag(sk, SOCK_ZAPPED);
+
out:
release_sock(sk);
struct sockaddr_l2tpip *lsa = (struct sockaddr_l2tpip *) uaddr;
int rc;
+ if (sock_flag(sk, SOCK_ZAPPED)) /* Must bind first - autobinding does not work */
+ return -EINVAL;
+
if (addr_len < sizeof(*lsa))
return -EINVAL;
return rc;
}
+static int l2tp_ip_disconnect(struct sock *sk, int flags)
+{
+ if (sock_flag(sk, SOCK_ZAPPED))
+ return 0;
+
+ return udp_disconnect(sk, flags);
+}
+
static int l2tp_ip_getname(struct socket *sock, struct sockaddr *uaddr,
int *uaddr_len, int peer)
{
.close = l2tp_ip_close,
.bind = l2tp_ip_bind,
.connect = l2tp_ip_connect,
- .disconnect = udp_disconnect,
+ .disconnect = l2tp_ip_disconnect,
.ioctl = udp_ioctl,
.destroy = l2tp_ip_destroy_sock,
.setsockopt = ip_setsockopt,
int addr_type;
int err;
+ if (!sock_flag(sk, SOCK_ZAPPED))
+ return -EINVAL;
+ if (addr->l2tp_family != AF_INET6)
+ return -EINVAL;
if (addr_len < sizeof(*addr))
return -EINVAL;
sk_del_node_init(sk);
write_unlock_bh(&l2tp_ip6_lock);
+ sock_reset_flag(sk, SOCK_ZAPPED);
release_sock(sk);
return 0;
int addr_type;
int rc;
+ if (sock_flag(sk, SOCK_ZAPPED)) /* Must bind first - autobinding does not work */
+ return -EINVAL;
+
if (addr_len < sizeof(*lsa))
return -EINVAL;
return rc;
}
+static int l2tp_ip6_disconnect(struct sock *sk, int flags)
+{
+ if (sock_flag(sk, SOCK_ZAPPED))
+ return 0;
+
+ return udp_disconnect(sk, flags);
+}
+
static int l2tp_ip6_getname(struct socket *sock, struct sockaddr *uaddr,
int *uaddr_len, int peer)
{
.close = l2tp_ip6_close,
.bind = l2tp_ip6_bind,
.connect = l2tp_ip6_connect,
- .disconnect = udp_disconnect,
+ .disconnect = l2tp_ip6_disconnect,
.ioctl = udp_ioctl,
.destroy = l2tp_ip6_destroy_sock,
.setsockopt = ipv6_setsockopt,
MODULE_DESCRIPTION("L2TP netlink");
MODULE_LICENSE("GPL");
MODULE_VERSION("1.0");
-MODULE_ALIAS("net-pf-" __stringify(PF_NETLINK) "-proto-" \
- __stringify(NETLINK_GENERIC) "-type-" "l2tp");
+MODULE_ALIAS_GENL_FAMILY("l2tp");
* anymore. The timeout will be reset if the frame is ACKed by
* the AP.
*/
+ ifmgd->probe_send_count++;
+
if (sdata->local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) {
ifmgd->nullfunc_failed = false;
ieee80211_send_nullfunc(sdata->local, sdata, 0);
0, (u32) -1, true, false);
}
- ifmgd->probe_send_count++;
ifmgd->probe_timeout = jiffies + msecs_to_jiffies(probe_wait_ms);
run_again(ifmgd, ifmgd->probe_timeout);
if (sdata->local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
/* Don't calculate ACKs for QoS Frames with NoAck Policy set */
if (ieee80211_is_data_qos(hdr->frame_control) &&
- *(ieee80211_get_qos_ctl(hdr)) | IEEE80211_QOS_CTL_ACK_POLICY_NOACK)
+ *(ieee80211_get_qos_ctl(hdr)) & IEEE80211_QOS_CTL_ACK_POLICY_NOACK)
dur = 0;
else
/* Time needed to transmit ACK
}
}
+ /* add back keys */
+ list_for_each_entry(sdata, &local->interfaces, list)
+ if (ieee80211_sdata_running(sdata))
+ ieee80211_enable_keys(sdata);
+
+ wake_up:
/*
* Clear the WLAN_STA_BLOCK_BA flag so new aggregation
* sessions can be established after a resume.
mutex_unlock(&local->sta_mtx);
}
- /* add back keys */
- list_for_each_entry(sdata, &local->interfaces, list)
- if (ieee80211_sdata_running(sdata))
- ieee80211_enable_keys(sdata);
-
- wake_up:
ieee80211_wake_queues_by_reason(hw,
IEEE80211_QUEUE_STOP_REASON_SUSPEND);
#ifdef CONFIG_MODULES
if (res == NULL) {
genl_unlock();
- request_module("net-pf-%d-proto-%d-type-%s",
+ request_module("net-pf-%d-proto-%d-family-%s",
PF_NETLINK, NETLINK_GENERIC, name);
genl_lock();
res = genl_family_find_byname(name);
struct work_struct free_work;
};
-#define pcidev_to_node(pcidev) pcibus_to_node(pcidev->bus)
-#define ibdev_to_node(ibdev) pcidev_to_node(to_pci_dev(ibdev->dma_device))
+#define ibdev_to_node(ibdev) dev_to_node(ibdev->dma_device)
#define rdsibdev_to_node(rdsibdev) ibdev_to_node(rdsibdev->dev)
/* bits for i_ack_flags */
#include <net/netlink.h>
#include <net/pkt_sched.h>
-extern struct socket *sockfd_lookup(int fd, int *err); /* @@@ fix this */
-
/*
* The ATM queuing discipline provides a framework for invoking classifiers
* (aka "filters"), which in turn select classes of this queuing discipline.
}
/*
- * We cannot currently handle tokens with rotated data. We need a
- * generalized routine to rotate the data in place. It is anticipated
- * that we won't encounter rotated data in the general case.
+ * We can shift data by up to LOCAL_BUF_LEN bytes in a pass. If we need
+ * to do more than that, we shift repeatedly. Kevin Coffman reports
+ * seeing 28 bytes as the value used by Microsoft clients and servers
+ * with AES, so this constant is chosen to allow handling 28 in one pass
+ * without using too much stack space.
+ *
+ * If that proves to a problem perhaps we could use a more clever
+ * algorithm.
*/
-static u32
-rotate_left(struct krb5_ctx *kctx, u32 offset, struct xdr_buf *buf, u16 rrc)
+#define LOCAL_BUF_LEN 32u
+
+static void rotate_buf_a_little(struct xdr_buf *buf, unsigned int shift)
{
- unsigned int realrrc = rrc % (buf->len - offset - GSS_KRB5_TOK_HDR_LEN);
+ char head[LOCAL_BUF_LEN];
+ char tmp[LOCAL_BUF_LEN];
+ unsigned int this_len, i;
+
+ BUG_ON(shift > LOCAL_BUF_LEN);
- if (realrrc == 0)
- return 0;
+ read_bytes_from_xdr_buf(buf, 0, head, shift);
+ for (i = 0; i + shift < buf->len; i += LOCAL_BUF_LEN) {
+ this_len = min(LOCAL_BUF_LEN, buf->len - (i + shift));
+ read_bytes_from_xdr_buf(buf, i+shift, tmp, this_len);
+ write_bytes_to_xdr_buf(buf, i, tmp, this_len);
+ }
+ write_bytes_to_xdr_buf(buf, buf->len - shift, head, shift);
+}
- dprintk("%s: cannot process token with rotated data: "
- "rrc %u, realrrc %u\n", __func__, rrc, realrrc);
- return 1;
+static void _rotate_left(struct xdr_buf *buf, unsigned int shift)
+{
+ int shifted = 0;
+ int this_shift;
+
+ shift %= buf->len;
+ while (shifted < shift) {
+ this_shift = min(shift - shifted, LOCAL_BUF_LEN);
+ rotate_buf_a_little(buf, this_shift);
+ shifted += this_shift;
+ }
+}
+
+static void rotate_left(u32 base, struct xdr_buf *buf, unsigned int shift)
+{
+ struct xdr_buf subbuf;
+
+ xdr_buf_subsegment(buf, &subbuf, base, buf->len - base);
+ _rotate_left(&subbuf, shift);
}
static u32
seqnum = be64_to_cpup((__be64 *)(ptr + 8));
- if (rrc != 0) {
- err = rotate_left(kctx, offset, buf, rrc);
- if (err)
- return GSS_S_FAILURE;
- }
+ if (rrc != 0)
+ rotate_left(offset + 16, buf, rrc);
err = (*kctx->gk5e->decrypt_v2)(kctx, offset, buf,
&headskip, &tailskip);
struct svc_cred cred;
struct gss_svc_seq_data seqdata;
struct gss_ctx *mechctx;
- char *client_name;
};
static struct rsc *rsc_update(struct cache_detail *cd, struct rsc *new, struct rsc *old);
kfree(rsci->handle.data);
if (rsci->mechctx)
gss_delete_sec_context(&rsci->mechctx);
- if (rsci->cred.cr_group_info)
- put_group_info(rsci->cred.cr_group_info);
- kfree(rsci->client_name);
+ free_svc_cred(&rsci->cred);
}
static void rsc_put(struct kref *ref)
tmp->handle.data = NULL;
new->mechctx = NULL;
new->cred.cr_group_info = NULL;
- new->client_name = NULL;
+ new->cred.cr_principal = NULL;
}
static void
spin_lock_init(&new->seqdata.sd_lock);
new->cred = tmp->cred;
tmp->cred.cr_group_info = NULL;
- new->client_name = tmp->client_name;
- tmp->client_name = NULL;
+ new->cred.cr_principal = tmp->cred.cr_principal;
+ tmp->cred.cr_principal = NULL;
}
static struct cache_head *
/* get client name */
len = qword_get(&mesg, buf, mlen);
if (len > 0) {
- rsci.client_name = kstrdup(buf, GFP_KERNEL);
- if (!rsci.client_name)
+ rsci.cred.cr_principal = kstrdup(buf, GFP_KERNEL);
+ if (!rsci.cred.cr_principal)
goto out;
}
struct rsc *rsci;
};
-char *svc_gss_principal(struct svc_rqst *rqstp)
-{
- struct gss_svc_data *gd = (struct gss_svc_data *)rqstp->rq_auth_data;
-
- if (gd && gd->rsci)
- return gd->rsci->client_name;
- return NULL;
-}
-EXPORT_SYMBOL_GPL(svc_gss_principal);
-
static int
svcauth_gss_set_client(struct svc_rqst *rqstp)
{
}
static inline int
-gss_write_init_verf(struct cache_detail *cd, struct svc_rqst *rqstp, struct rsi *rsip)
+gss_write_init_verf(struct cache_detail *cd, struct svc_rqst *rqstp,
+ struct xdr_netobj *out_handle, int *major_status)
{
struct rsc *rsci;
int rc;
- if (rsip->major_status != GSS_S_COMPLETE)
+ if (*major_status != GSS_S_COMPLETE)
return gss_write_null_verf(rqstp);
- rsci = gss_svc_searchbyctx(cd, &rsip->out_handle);
+ rsci = gss_svc_searchbyctx(cd, out_handle);
if (rsci == NULL) {
- rsip->major_status = GSS_S_NO_CONTEXT;
+ *major_status = GSS_S_NO_CONTEXT;
return gss_write_null_verf(rqstp);
}
rc = gss_write_verf(rqstp, rsci->mechctx, GSS_SEQ_WIN);
return rc;
}
-/*
- * Having read the cred already and found we're in the context
- * initiation case, read the verifier and initiate (or check the results
- * of) upcalls to userspace for help with context initiation. If
- * the upcall results are available, write the verifier and result.
- * Otherwise, drop the request pending an answer to the upcall.
- */
-static int svcauth_gss_handle_init(struct svc_rqst *rqstp,
- struct rpc_gss_wire_cred *gc, __be32 *authp)
+static inline int
+gss_read_verf(struct rpc_gss_wire_cred *gc,
+ struct kvec *argv, __be32 *authp,
+ struct xdr_netobj *in_handle,
+ struct xdr_netobj *in_token)
{
- struct kvec *argv = &rqstp->rq_arg.head[0];
- struct kvec *resv = &rqstp->rq_res.head[0];
struct xdr_netobj tmpobj;
- struct rsi *rsip, rsikey;
- int ret;
- struct sunrpc_net *sn = net_generic(rqstp->rq_xprt->xpt_net, sunrpc_net_id);
/* Read the verifier; should be NULL: */
*authp = rpc_autherr_badverf;
return SVC_DENIED;
if (svc_getnl(argv) != 0)
return SVC_DENIED;
-
/* Martial context handle and token for upcall: */
*authp = rpc_autherr_badcred;
if (gc->gc_proc == RPC_GSS_PROC_INIT && gc->gc_ctx.len != 0)
return SVC_DENIED;
- memset(&rsikey, 0, sizeof(rsikey));
- if (dup_netobj(&rsikey.in_handle, &gc->gc_ctx))
+ if (dup_netobj(in_handle, &gc->gc_ctx))
return SVC_CLOSE;
*authp = rpc_autherr_badverf;
if (svc_safe_getnetobj(argv, &tmpobj)) {
- kfree(rsikey.in_handle.data);
+ kfree(in_handle->data);
return SVC_DENIED;
}
- if (dup_netobj(&rsikey.in_token, &tmpobj)) {
- kfree(rsikey.in_handle.data);
+ if (dup_netobj(in_token, &tmpobj)) {
+ kfree(in_handle->data);
return SVC_CLOSE;
}
+ return 0;
+}
+
+static inline int
+gss_write_resv(struct kvec *resv, size_t size_limit,
+ struct xdr_netobj *out_handle, struct xdr_netobj *out_token,
+ int major_status, int minor_status)
+{
+ if (resv->iov_len + 4 > size_limit)
+ return -1;
+ svc_putnl(resv, RPC_SUCCESS);
+ if (svc_safe_putnetobj(resv, out_handle))
+ return -1;
+ if (resv->iov_len + 3 * 4 > size_limit)
+ return -1;
+ svc_putnl(resv, major_status);
+ svc_putnl(resv, minor_status);
+ svc_putnl(resv, GSS_SEQ_WIN);
+ if (svc_safe_putnetobj(resv, out_token))
+ return -1;
+ return 0;
+}
+
+/*
+ * Having read the cred already and found we're in the context
+ * initiation case, read the verifier and initiate (or check the results
+ * of) upcalls to userspace for help with context initiation. If
+ * the upcall results are available, write the verifier and result.
+ * Otherwise, drop the request pending an answer to the upcall.
+ */
+static int svcauth_gss_handle_init(struct svc_rqst *rqstp,
+ struct rpc_gss_wire_cred *gc, __be32 *authp)
+{
+ struct kvec *argv = &rqstp->rq_arg.head[0];
+ struct kvec *resv = &rqstp->rq_res.head[0];
+ struct rsi *rsip, rsikey;
+ int ret;
+ struct sunrpc_net *sn = net_generic(rqstp->rq_xprt->xpt_net, sunrpc_net_id);
+
+ memset(&rsikey, 0, sizeof(rsikey));
+ ret = gss_read_verf(gc, argv, authp,
+ &rsikey.in_handle, &rsikey.in_token);
+ if (ret)
+ return ret;
+
/* Perform upcall, or find upcall result: */
rsip = rsi_lookup(sn->rsi_cache, &rsikey);
rsi_free(&rsikey);
ret = SVC_CLOSE;
/* Got an answer to the upcall; use it: */
- if (gss_write_init_verf(sn->rsc_cache, rqstp, rsip))
- goto out;
- if (resv->iov_len + 4 > PAGE_SIZE)
+ if (gss_write_init_verf(sn->rsc_cache, rqstp,
+ &rsip->out_handle, &rsip->major_status))
goto out;
- svc_putnl(resv, RPC_SUCCESS);
- if (svc_safe_putnetobj(resv, &rsip->out_handle))
- goto out;
- if (resv->iov_len + 3 * 4 > PAGE_SIZE)
- goto out;
- svc_putnl(resv, rsip->major_status);
- svc_putnl(resv, rsip->minor_status);
- svc_putnl(resv, GSS_SEQ_WIN);
- if (svc_safe_putnetobj(resv, &rsip->out_token))
+ if (gss_write_resv(resv, PAGE_SIZE,
+ &rsip->out_handle, &rsip->out_token,
+ rsip->major_status, rsip->minor_status))
goto out;
ret = SVC_COMPLETE;
}
svcdata->rsci = rsci;
cache_get(&rsci->h);
- rqstp->rq_flavor = gss_svc_to_pseudoflavor(
+ rqstp->rq_cred.cr_flavor = gss_svc_to_pseudoflavor(
rsci->mechctx->mech_type, gc->gc_svc);
ret = SVC_OK;
goto out;
}
switch (status) {
+ case -ENOMEM:
+ rpc_delay(task, HZ >> 2);
case -EAGAIN: /* woken up; retry */
task->tk_action = call_reserve;
return;
/**
* rpc_queue_upcall - queue an upcall message to userspace
- * @inode: inode of upcall pipe on which to queue given message
+ * @pipe: upcall pipe on which to queue given message
* @msg: message to queue
*
* Call with an @inode created by rpc_mkpipe() to queue an upcall.
* @parent: dentry of directory to create new "pipe" in
* @name: name of pipe
* @private: private data to associate with the pipe, for the caller's use
- * @ops: operations defining the behavior of the pipe: upcall, downcall,
- * release_pipe, open_pipe, and destroy_msg.
- * @flags: rpc_pipe flags
+ * @pipe: &rpc_pipe containing input parameters
*
* Data is made available for userspace to read by calls to
* rpc_queue_upcall(). The actual reads will result in calls to
/**
* rpc_remove_client_dir - Remove a directory created with rpc_create_client_dir()
- * @clnt: rpc client
+ * @dentry: dentry for the pipe
*/
int rpc_remove_client_dir(struct dentry *dentry)
{
sb->s_op = &s_ops;
sb->s_time_gran = 1;
- inode = rpc_get_inode(sb, S_IFDIR | 0755);
+ inode = rpc_get_inode(sb, S_IFDIR | S_IRUGO | S_IXUGO);
sb->s_root = root = d_make_root(inode);
if (!root)
return -ENOMEM;
struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
struct rpc_clnt *clnt = sn->rpcb_local_clnt;
struct rpc_clnt *clnt4 = sn->rpcb_local_clnt4;
- int shutdown;
+ int shutdown = 0;
spin_lock(&sn->rpcb_clnt_lock);
- if (--sn->rpcb_users == 0) {
- sn->rpcb_local_clnt = NULL;
- sn->rpcb_local_clnt4 = NULL;
+ if (sn->rpcb_users) {
+ if (--sn->rpcb_users == 0) {
+ sn->rpcb_local_clnt = NULL;
+ sn->rpcb_local_clnt4 = NULL;
+ }
+ shutdown = !sn->rpcb_users;
}
- shutdown = !sn->rpcb_users;
spin_unlock(&sn->rpcb_clnt_lock);
if (shutdown) {
/**
* rpcb_register - set or unset a port registration with the local rpcbind svc
+ * @net: target network namespace
* @prog: RPC program number to bind
* @vers: RPC version number to bind
* @prot: transport protocol to register
/**
* rpcb_v4_register - set or unset a port registration with the local rpcbind
+ * @net: target network namespace
* @program: RPC program number of service to (un)register
* @version: RPC version number of service to (un)register
* @address: address family, IP address, and port to (un)register
return 0;
}
+int svc_bind(struct svc_serv *serv, struct net *net)
+{
+ if (!svc_uses_rpcbind(serv))
+ return 0;
+ return svc_rpcb_setup(serv, net);
+}
+EXPORT_SYMBOL_GPL(svc_bind);
+
/*
* Create an RPC service
*/
spin_lock_init(&pool->sp_lock);
}
- if (svc_uses_rpcbind(serv)) {
- if (svc_rpcb_setup(serv, current->nsproxy->net_ns) < 0) {
- kfree(serv->sv_pools);
- kfree(serv);
- return NULL;
- }
- if (!serv->sv_shutdown)
- serv->sv_shutdown = svc_rpcb_cleanup;
- }
+ if (svc_uses_rpcbind(serv) && (!serv->sv_shutdown))
+ serv->sv_shutdown = svc_rpcb_cleanup;
return serv;
}
void
svc_destroy(struct svc_serv *serv)
{
- struct net *net = current->nsproxy->net_ns;
-
dprintk("svc: svc_destroy(%s, %d)\n",
serv->sv_program->pg_name,
serv->sv_nrthreads);
del_timer_sync(&serv->sv_temptimer);
- svc_shutdown_net(serv, net);
-
/*
* The last user is gone and thus all sockets have to be destroyed to
* the point. Check this.
/* now allocate needed pages. If we get a failure, sleep briefly */
pages = (serv->sv_max_mesg + PAGE_SIZE) / PAGE_SIZE;
+ BUG_ON(pages >= RPCSVC_MAXPAGES);
for (i = 0; i < pages ; i++)
while (rqstp->rq_pages[i] == NULL) {
struct page *p = alloc_page(GFP_KERNEL);
rqstp->rq_pages[i] = p;
}
rqstp->rq_pages[i++] = NULL; /* this might be seen in nfs_read_actor */
- BUG_ON(pages >= RPCSVC_MAXPAGES);
/* Make arg->head point to first page and arg->pages point to rest */
arg = &rqstp->rq_arg;
svc_clear_pools(serv, net);
/*
* At this point the sp_sockets lists will stay empty, since
- * svc_enqueue will not add new entries without taking the
+ * svc_xprt_enqueue will not add new entries without taking the
* sp_lock and checking XPT_BUSY.
*/
svc_clear_list(&serv->sv_tempsocks, net);
return __ip_map_update(sn->ip_map_cache, ipm, udom, expiry);
}
-
-void svcauth_unix_purge(void)
+void svcauth_unix_purge(struct net *net)
{
- struct net *net;
-
- for_each_net(net) {
- struct sunrpc_net *sn;
+ struct sunrpc_net *sn;
- sn = net_generic(net, sunrpc_net_id);
- cache_purge(sn->ip_map_cache);
- }
+ sn = net_generic(net, sunrpc_net_id);
+ cache_purge(sn->ip_map_cache);
}
EXPORT_SYMBOL_GPL(svcauth_unix_purge);
struct svc_cred *cred = &rqstp->rq_cred;
cred->cr_group_info = NULL;
+ cred->cr_principal = NULL;
rqstp->rq_client = NULL;
if (argv->iov_len < 3*4)
svc_putnl(resv, RPC_AUTH_NULL);
svc_putnl(resv, 0);
- rqstp->rq_flavor = RPC_AUTH_NULL;
+ rqstp->rq_cred.cr_flavor = RPC_AUTH_NULL;
return SVC_OK;
}
int len = argv->iov_len;
cred->cr_group_info = NULL;
+ cred->cr_principal = NULL;
rqstp->rq_client = NULL;
if ((len -= 3*4) < 0)
svc_putnl(resv, RPC_AUTH_NULL);
svc_putnl(resv, 0);
- rqstp->rq_flavor = RPC_AUTH_UNIX;
+ rqstp->rq_cred.cr_flavor = RPC_AUTH_UNIX;
return SVC_OK;
badcred:
list_del(&req->rq_list);
goto out_init_req;
}
- req = xprt_dynamic_alloc_slot(xprt, GFP_NOWAIT);
+ req = xprt_dynamic_alloc_slot(xprt, GFP_NOWAIT|__GFP_NOWARN);
if (!IS_ERR(req))
goto out_init_req;
switch (PTR_ERR(req)) {
case -ENOMEM:
- rpc_delay(task, HZ >> 2);
dprintk("RPC: dynamic allocation of request slot "
"failed! Retrying\n");
+ task->tk_status = -ENOMEM;
break;
case -EAGAIN:
rpc_sleep_on(&xprt->backlog, task, NULL);
dprintk("RPC: waiting for request slot\n");
+ default:
+ task->tk_status = -EAGAIN;
}
- task->tk_status = -EAGAIN;
return;
out_init_req:
task->tk_status = 0;
#
config WAN_ROUTER
- tristate "WAN router"
+ tristate "WAN router (DEPRECATED)"
depends on EXPERIMENTAL
---help---
Wide Area Networks (WANs), such as X.25, frame relay and leased
}
ok:
xfrm_pols_put(pols, drop_pols);
+ if (dst && dst->xfrm &&
+ dst->xfrm->props.mode == XFRM_MODE_TUNNEL)
+ dst->flags |= DST_XFRM_TUNNEL;
return dst;
nopol:
}
}
+ if ($line =~ /\bprintk\s*\(\s*KERN_([A-Z]+)/) {
+ my $orig = $1;
+ my $level = lc($orig);
+ $level = "warn" if ($level eq "warning");
+ WARN("PREFER_PR_LEVEL",
+ "Prefer pr_$level(... to printk(KERN_$1, ...\n" . $herecurr);
+ }
+
+ if ($line =~ /\bpr_warning\s*\(/) {
+ WARN("PREFER_PR_LEVEL",
+ "Prefer pr_warn(... to pr_warning(...\n" . $herecurr);
+ }
+
# function brace can't be on same line, except for #defines of do while,
# or if closed on same line
if (($line=~/$Type\s*$Ident\(.*\).*\s{/) and
"space prohibited between function name and open parenthesis '('\n" . $herecurr);
}
}
+
+# check for whitespace before a non-naked semicolon
+ if ($line =~ /^\+.*\S\s+;/) {
+ CHK("SPACING",
+ "space prohibited before semicolon\n" . $herecurr);
+ }
+
# Check operator spacing.
if (!($line=~/\#\s*include/)) {
my $ops = qr{
return common_file_perm(op, file, mask);
}
-static int apparmor_file_mmap(struct file *file, unsigned long reqprot,
- unsigned long prot, unsigned long flags,
- unsigned long addr, unsigned long addr_only)
+static int apparmor_mmap_file(struct file *file, unsigned long reqprot,
+ unsigned long prot, unsigned long flags)
{
- int rc = 0;
-
- /* do DAC check */
- rc = cap_file_mmap(file, reqprot, prot, flags, addr, addr_only);
- if (rc || addr_only)
- return rc;
-
return common_mmap(OP_FMMAP, file, prot, flags);
}
.file_permission = apparmor_file_permission,
.file_alloc_security = apparmor_file_alloc_security,
.file_free_security = apparmor_file_free_security,
- .file_mmap = apparmor_file_mmap,
+ .mmap_file = apparmor_mmap_file,
+ .mmap_addr = cap_mmap_addr,
.file_mprotect = apparmor_file_mprotect,
.file_lock = apparmor_file_lock,
set_to_cap_if_null(ops, file_alloc_security);
set_to_cap_if_null(ops, file_free_security);
set_to_cap_if_null(ops, file_ioctl);
- set_to_cap_if_null(ops, file_mmap);
+ set_to_cap_if_null(ops, mmap_addr);
+ set_to_cap_if_null(ops, mmap_file);
set_to_cap_if_null(ops, file_mprotect);
set_to_cap_if_null(ops, file_lock);
set_to_cap_if_null(ops, file_fcntl);
}
/*
- * cap_file_mmap - check if able to map given addr
- * @file: unused
- * @reqprot: unused
- * @prot: unused
- * @flags: unused
+ * cap_mmap_addr - check if able to map given addr
* @addr: address attempting to be mapped
- * @addr_only: unused
*
* If the process is attempting to map memory below dac_mmap_min_addr they need
* CAP_SYS_RAWIO. The other parameters to this function are unused by the
* capability security module. Returns 0 if this mapping should be allowed
* -EPERM if not.
*/
-int cap_file_mmap(struct file *file, unsigned long reqprot,
- unsigned long prot, unsigned long flags,
- unsigned long addr, unsigned long addr_only)
+int cap_mmap_addr(unsigned long addr)
{
int ret = 0;
}
return ret;
}
+
+int cap_mmap_file(struct file *file, unsigned long reqprot,
+ unsigned long prot, unsigned long flags)
+{
+ return 0;
+}
ret = compat_rw_copy_check_uvector(WRITE, _payload_iov, ioc,
ARRAY_SIZE(iovstack),
- iovstack, &iov, 1);
+ iovstack, &iov);
if (ret < 0)
return ret;
if (ret == 0)
#include <linux/sched.h>
#include <linux/key-type.h>
+#include <linux/task_work.h>
#ifdef __KDEBUG
#define kenter(FMT, ...) \
#define KEY_LOOKUP_FOR_UNLINK 0x04
extern long join_session_keyring(const char *name);
+extern void key_change_session_keyring(struct task_work *twork);
extern struct work_struct key_gc_work;
extern unsigned key_gc_delay;
vm = false;
if (_payload) {
ret = -ENOMEM;
- payload = kmalloc(plen, GFP_KERNEL);
+ payload = kmalloc(plen, GFP_KERNEL | __GFP_NOWARN);
if (!payload) {
if (plen <= PAGE_SIZE)
goto error2;
goto no_payload;
ret = rw_copy_check_uvector(WRITE, _payload_iov, ioc,
- ARRAY_SIZE(iovstack), iovstack, &iov, 1);
+ ARRAY_SIZE(iovstack), iovstack, &iov);
if (ret < 0)
return ret;
if (ret == 0)
*/
long keyctl_session_to_parent(void)
{
-#ifdef TIF_NOTIFY_RESUME
struct task_struct *me, *parent;
const struct cred *mycred, *pcred;
- struct cred *cred, *oldcred;
+ struct task_work *newwork, *oldwork;
key_ref_t keyring_r;
+ struct cred *cred;
int ret;
keyring_r = lookup_user_key(KEY_SPEC_SESSION_KEYRING, 0, KEY_LINK);
if (IS_ERR(keyring_r))
return PTR_ERR(keyring_r);
+ ret = -ENOMEM;
+ newwork = kmalloc(sizeof(struct task_work), GFP_KERNEL);
+ if (!newwork)
+ goto error_keyring;
+
/* our parent is going to need a new cred struct, a new tgcred struct
* and new security data, so we allocate them here to prevent ENOMEM in
* our parent */
- ret = -ENOMEM;
cred = cred_alloc_blank();
if (!cred)
- goto error_keyring;
+ goto error_newwork;
cred->tgcred->session_keyring = key_ref_to_ptr(keyring_r);
- keyring_r = NULL;
+ init_task_work(newwork, key_change_session_keyring, cred);
me = current;
rcu_read_lock();
write_lock_irq(&tasklist_lock);
- parent = me->real_parent;
ret = -EPERM;
+ oldwork = NULL;
+ parent = me->real_parent;
/* the parent mustn't be init and mustn't be a kernel thread */
if (parent->pid <= 1 || !parent->mm)
- goto not_permitted;
+ goto unlock;
/* the parent must be single threaded */
if (!thread_group_empty(parent))
- goto not_permitted;
+ goto unlock;
/* the parent and the child must have different session keyrings or
* there's no point */
mycred = current_cred();
pcred = __task_cred(parent);
if (mycred == pcred ||
- mycred->tgcred->session_keyring == pcred->tgcred->session_keyring)
- goto already_same;
+ mycred->tgcred->session_keyring == pcred->tgcred->session_keyring) {
+ ret = 0;
+ goto unlock;
+ }
/* the parent must have the same effective ownership and mustn't be
* SUID/SGID */
pcred->gid != mycred->egid ||
pcred->egid != mycred->egid ||
pcred->sgid != mycred->egid)
- goto not_permitted;
+ goto unlock;
/* the keyrings must have the same UID */
if ((pcred->tgcred->session_keyring &&
pcred->tgcred->session_keyring->uid != mycred->euid) ||
mycred->tgcred->session_keyring->uid != mycred->euid)
- goto not_permitted;
+ goto unlock;
- /* if there's an already pending keyring replacement, then we replace
- * that */
- oldcred = parent->replacement_session_keyring;
+ /* cancel an already pending keyring replacement */
+ oldwork = task_work_cancel(parent, key_change_session_keyring);
/* the replacement session keyring is applied just prior to userspace
* restarting */
- parent->replacement_session_keyring = cred;
- cred = NULL;
- set_ti_thread_flag(task_thread_info(parent), TIF_NOTIFY_RESUME);
-
- write_unlock_irq(&tasklist_lock);
- rcu_read_unlock();
- if (oldcred)
- put_cred(oldcred);
- return 0;
-
-already_same:
- ret = 0;
-not_permitted:
+ ret = task_work_add(parent, newwork, true);
+ if (!ret)
+ newwork = NULL;
+unlock:
write_unlock_irq(&tasklist_lock);
rcu_read_unlock();
- put_cred(cred);
+ if (oldwork) {
+ put_cred(oldwork->data);
+ kfree(oldwork);
+ }
+ if (newwork) {
+ put_cred(newwork->data);
+ kfree(newwork);
+ }
return ret;
+error_newwork:
+ kfree(newwork);
error_keyring:
key_ref_put(keyring_r);
return ret;
-
-#else /* !TIF_NOTIFY_RESUME */
- /*
- * To be removed when TIF_NOTIFY_RESUME has been implemented on
- * m68k/xtensa
- */
-#warning TIF_NOTIFY_RESUME not implemented
- return -EOPNOTSUPP;
-#endif /* !TIF_NOTIFY_RESUME */
}
/*
* Replace a process's session keyring on behalf of one of its children when
* the target process is about to resume userspace execution.
*/
-void key_replace_session_keyring(void)
+void key_change_session_keyring(struct task_work *twork)
{
- const struct cred *old;
- struct cred *new;
-
- if (!current->replacement_session_keyring)
- return;
+ const struct cred *old = current_cred();
+ struct cred *new = twork->data;
- write_lock_irq(&tasklist_lock);
- new = current->replacement_session_keyring;
- current->replacement_session_keyring = NULL;
- write_unlock_irq(&tasklist_lock);
-
- if (!new)
+ kfree(twork);
+ if (unlikely(current->flags & PF_EXITING)) {
+ put_cred(new);
return;
+ }
- old = current_cred();
new-> uid = old-> uid;
new-> euid = old-> euid;
new-> suid = old-> suid;
static int call_usermodehelper_keys(char *path, char **argv, char **envp,
struct key *session_keyring, int wait)
{
- gfp_t gfp_mask = (wait == UMH_NO_WAIT) ? GFP_ATOMIC : GFP_KERNEL;
- struct subprocess_info *info =
- call_usermodehelper_setup(path, argv, envp, gfp_mask);
-
- if (!info)
- return -ENOMEM;
-
- call_usermodehelper_setfns(info, umh_keys_init, umh_keys_cleanup,
- key_get(session_keyring));
- return call_usermodehelper_exec(info, wait);
+ return call_usermodehelper_fns(path, argv, envp, wait,
+ umh_keys_init, umh_keys_cleanup,
+ key_get(session_keyring));
}
/*
#include <linux/ima.h>
#include <linux/evm.h>
#include <linux/fsnotify.h>
+#include <linux/mman.h>
+#include <linux/mount.h>
+#include <linux/personality.h>
#include <net/flow.h>
#define MAX_LSM_EVM_XATTR 2
return security_ops->file_ioctl(file, cmd, arg);
}
-int security_file_mmap(struct file *file, unsigned long reqprot,
- unsigned long prot, unsigned long flags,
- unsigned long addr, unsigned long addr_only)
+static inline unsigned long mmap_prot(struct file *file, unsigned long prot)
{
- int ret;
+ /*
+ * Does we have PROT_READ and does the application expect
+ * it to imply PROT_EXEC? If not, nothing to talk about...
+ */
+ if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ)
+ return prot;
+ if (!(current->personality & READ_IMPLIES_EXEC))
+ return prot;
+ /*
+ * if that's an anonymous mapping, let it.
+ */
+ if (!file)
+ return prot | PROT_EXEC;
+ /*
+ * ditto if it's not on noexec mount, except that on !MMU we need
+ * BDI_CAP_EXEC_MMAP (== VM_MAYEXEC) in this case
+ */
+ if (!(file->f_path.mnt->mnt_flags & MNT_NOEXEC)) {
+#ifndef CONFIG_MMU
+ unsigned long caps = 0;
+ struct address_space *mapping = file->f_mapping;
+ if (mapping && mapping->backing_dev_info)
+ caps = mapping->backing_dev_info->capabilities;
+ if (!(caps & BDI_CAP_EXEC_MAP))
+ return prot;
+#endif
+ return prot | PROT_EXEC;
+ }
+ /* anything on noexec mount won't get PROT_EXEC */
+ return prot;
+}
- ret = security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
+int security_mmap_file(struct file *file, unsigned long prot,
+ unsigned long flags)
+{
+ int ret;
+ ret = security_ops->mmap_file(file, prot,
+ mmap_prot(file, prot), flags);
if (ret)
return ret;
return ima_file_mmap(file, prot);
}
+int security_mmap_addr(unsigned long addr)
+{
+ return security_ops->mmap_addr(addr);
+}
+
int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
unsigned long prot)
{
return rc;
}
-static int selinux_file_mmap(struct file *file, unsigned long reqprot,
- unsigned long prot, unsigned long flags,
- unsigned long addr, unsigned long addr_only)
+static int selinux_mmap_addr(unsigned long addr)
{
int rc = 0;
u32 sid = current_sid();
}
/* do DAC check on address space usage */
- rc = cap_file_mmap(file, reqprot, prot, flags, addr, addr_only);
- if (rc || addr_only)
- return rc;
+ return cap_mmap_addr(addr);
+}
+static int selinux_mmap_file(struct file *file, unsigned long reqprot,
+ unsigned long prot, unsigned long flags)
+{
if (selinux_checkreqprot)
prot = reqprot;
.file_alloc_security = selinux_file_alloc_security,
.file_free_security = selinux_file_free_security,
.file_ioctl = selinux_file_ioctl,
- .file_mmap = selinux_file_mmap,
+ .mmap_file = selinux_mmap_file,
+ .mmap_addr = selinux_mmap_addr,
.file_mprotect = selinux_file_mprotect,
.file_lock = selinux_file_lock,
.file_fcntl = selinux_file_fcntl,
if (!inode)
goto out;
- ret = -EINVAL;
- len = snprintf(page, PAGE_SIZE, "/%s/%s", BOOL_DIR_NAME, names[i]);
- if (len < 0)
- goto out;
-
ret = -ENAMETOOLONG;
+ len = snprintf(page, PAGE_SIZE, "/%s/%s", BOOL_DIR_NAME, names[i]);
if (len >= PAGE_SIZE)
goto out;
static ssize_t sel_read_class(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
- ssize_t rc, len;
- char *page;
unsigned long ino = file->f_path.dentry->d_inode->i_ino;
-
- page = (char *)__get_free_page(GFP_KERNEL);
- if (!page)
- return -ENOMEM;
-
- len = snprintf(page, PAGE_SIZE, "%d", sel_ino_to_class(ino));
- rc = simple_read_from_buffer(buf, count, ppos, page, len);
- free_page((unsigned long)page);
-
- return rc;
+ char res[TMPBUFLEN];
+ ssize_t len = snprintf(res, sizeof(res), "%d", sel_ino_to_class(ino));
+ return simple_read_from_buffer(buf, count, ppos, res, len);
}
static const struct file_operations sel_class_ops = {
static ssize_t sel_read_perm(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
- ssize_t rc, len;
- char *page;
unsigned long ino = file->f_path.dentry->d_inode->i_ino;
-
- page = (char *)__get_free_page(GFP_KERNEL);
- if (!page)
- return -ENOMEM;
-
- len = snprintf(page, PAGE_SIZE, "%d", sel_ino_to_perm(ino));
- rc = simple_read_from_buffer(buf, count, ppos, page, len);
- free_page((unsigned long)page);
-
- return rc;
+ char res[TMPBUFLEN];
+ ssize_t len = snprintf(res, sizeof(res), "%d", sel_ino_to_perm(ino));
+ return simple_read_from_buffer(buf, count, ppos, res, len);
}
static const struct file_operations sel_perm_ops = {
}
/**
- * smack_file_mmap :
+ * smack_mmap_file :
* Check permissions for a mmap operation. The @file may be NULL, e.g.
* if mapping anonymous memory.
* @file contains the file structure for file to map (may be NULL).
* @flags contains the operational flags.
* Return 0 if permission is granted.
*/
-static int smack_file_mmap(struct file *file,
+static int smack_mmap_file(struct file *file,
unsigned long reqprot, unsigned long prot,
- unsigned long flags, unsigned long addr,
- unsigned long addr_only)
+ unsigned long flags)
{
struct smack_known *skp;
struct smack_rule *srp;
int tmay;
int rc;
- /* do DAC check on address space usage */
- rc = cap_file_mmap(file, reqprot, prot, flags, addr, addr_only);
- if (rc || addr_only)
- return rc;
-
if (file == NULL || file->f_dentry == NULL)
return 0;
.file_ioctl = smack_file_ioctl,
.file_lock = smack_file_lock,
.file_fcntl = smack_file_fcntl,
- .file_mmap = smack_file_mmap,
+ .mmap_file = smack_mmap_file,
+ .mmap_addr = cap_mmap_addr,
.file_set_fowner = smack_file_set_fowner,
.file_send_sigiotask = smack_file_send_sigiotask,
.file_receive = smack_file_receive,
period = hdspm_read(hdspm, HDSPM_RD_PLL_FREQ);
rate = hdspm_calc_dds_value(hdspm, period);
+ if (rate > 207000) {
+ /* Unreasonable high sample rate as seen on PCI MADI cards.
+ * Use the cached value instead.
+ */
+ rate = hdspm->system_sample_rate;
+ }
+
return rate;
}
ret);
goto failed_clk;
}
- clk_enable(ssi->clk);
+ clk_prepare_enable(ssi->clk);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
failed_ioremap:
release_mem_region(res->start, resource_size(res));
failed_get_resource:
- clk_disable(ssi->clk);
+ clk_disable_unprepare(ssi->clk);
clk_put(ssi->clk);
failed_clk:
kfree(ssi);
iounmap(ssi->base);
release_mem_region(res->start, resource_size(res));
- clk_disable(ssi->clk);
+ clk_disable_unprepare(ssi->clk);
clk_put(ssi->clk);
kfree(ssi);
return 0;
}
+static dma_addr_t fsi_dma_get_area(struct fsi_stream *io)
+{
+ struct snd_pcm_runtime *runtime = io->substream->runtime;
+
+ return io->dma + samples_to_bytes(runtime, io->buff_sample_pos);
+}
+
static void fsi_dma_complete(void *data)
{
struct fsi_stream *io = (struct fsi_stream *)data;
enum dma_data_direction dir = fsi_stream_is_play(fsi, io) ?
DMA_TO_DEVICE : DMA_FROM_DEVICE;
- dma_sync_single_for_cpu(dai->dev, io->dma,
+ dma_sync_single_for_cpu(dai->dev, fsi_dma_get_area(io),
samples_to_bytes(runtime, io->period_samples), dir);
io->buff_sample_pos += io->period_samples;
snd_pcm_period_elapsed(io->substream);
}
-static dma_addr_t fsi_dma_get_area(struct fsi_stream *io)
-{
- struct snd_pcm_runtime *runtime = io->substream->runtime;
-
- return io->dma + samples_to_bytes(runtime, io->buff_sample_pos);
-}
-
static void fsi_dma_do_tasklet(unsigned long data)
{
struct fsi_stream *io = (struct fsi_stream *)data;
len = samples_to_bytes(runtime, io->period_samples);
buf = fsi_dma_get_area(io);
- dma_sync_single_for_device(dai->dev, io->dma, len, dir);
+ dma_sync_single_for_device(dai->dev, buf, len, dir);
sg_init_table(&sg, 1);
sg_set_page(&sg, pfn_to_page(PFN_DOWN(buf)),
static void fsi_dma_push_start_stop(struct fsi_priv *fsi, struct fsi_stream *io,
int start)
{
+ struct fsi_master *master = fsi_get_master(fsi);
+ u32 clk = fsi_is_port_a(fsi) ? CRA : CRB;
u32 enable = start ? DMA_ON : 0;
fsi_reg_mask_set(fsi, OUT_DMAC, DMA_ON, enable);
+
+ dmaengine_terminate_all(io->chan);
+
+ if (fsi_is_clk_master(fsi))
+ fsi_master_mask_set(master, CLK_RST, clk, (enable) ? clk : 0);
}
static int fsi_dma_probe(struct fsi_priv *fsi, struct fsi_stream *io)
int count = 0, needs_knot = 0;
int err;
+ kfree(subs->rate_list.list);
+ subs->rate_list.list = NULL;
+
list_for_each_entry(fp, &subs->fmt_list, list) {
if (fp->rates & SNDRV_PCM_RATE_CONTINUOUS)
return 0;
fail:
free_token(token);
fail_expect:
- if (field)
+ if (field) {
+ free(field->type);
+ free(field->name);
free(field);
+ }
return -1;
}
if (set_op_prio(arg) == -1) {
event->flags |= EVENT_FL_FAILED;
+ /* arg->op.op (= token) will be freed at out_free */
+ arg->op.op = NULL;
goto out_free;
}
free_token(token);
type = process_arg(event, arg, &token);
+
+ if (type == EVENT_OP)
+ type = process_op(event, arg, &token);
+
+ if (type == EVENT_ERROR)
+ goto out_free;
+
if (test_type_token(type, token, EVENT_DELIM, ","))
goto out_free;
arg = alloc_arg();
type = process_arg(event, arg, &token);
if (type == EVENT_ERROR)
- goto out_free;
+ goto out_free_arg;
if (!test_type_token(type, token, EVENT_OP, "]"))
- goto out_free;
+ goto out_free_arg;
free_token(token);
type = read_token_item(tok);
return type;
+ out_free_arg:
+ free_arg(arg);
out_free:
- free(arg);
free_token(token);
*tok = NULL;
return EVENT_ERROR;
break;
}
farg = farg->next;
+ param = param->next;
}
ret = (*func_handle->func)(s, args);
}
static struct filter_arg *
-create_arg_item(struct event_format *event,
- const char *token, enum filter_arg_type type,
- char **error_str)
+create_arg_item(struct event_format *event, const char *token,
+ enum event_type type, char **error_str)
{
struct format_field *field;
struct filter_arg *arg;
const char *name;
name = get_comm(event, record);
- return (unsigned long long)name;
+ return (unsigned long)name;
}
pevent_read_number_field(field, record->data, &val);
# Default, disable using /dev/null
dir = /root/.debug
+
+[annotate]
+
+ # Defaults
+ hide_src_code = false
+ use_offset = true
+ jump_arrows = true
+ show_nr_jumps = false
PERF_DEBUG = $(DEBUG)
endif
ifndef PERF_DEBUG
- CFLAGS_OPTIMIZE = -O6
+ CFLAGS_OPTIMIZE = -O6 -D_FORTIFY_SOURCE=2
endif
ifdef PARSER_DEBUG
PARSER_DEBUG_CFLAGS := -DPARSER_DEBUG
endif
-CFLAGS = -fno-omit-frame-pointer -ggdb3 -Wall -Wextra -std=gnu99 $(CFLAGS_WERROR) $(CFLAGS_OPTIMIZE) -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) $(PARSER_DEBUG_CFLAGS)
+CFLAGS = -fno-omit-frame-pointer -ggdb3 -Wall -Wextra -std=gnu99 $(CFLAGS_WERROR) $(CFLAGS_OPTIMIZE) $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) $(PARSER_DEBUG_CFLAGS)
EXTLIBS = -lpthread -lrt -lelf -lm
ALL_CFLAGS = $(CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
ALL_LDFLAGS = $(LDFLAGS)
}
if (total_nr_samples == 0) {
- ui__warning("The %s file has no samples!\n", session->filename);
+ ui__error("The %s file has no samples!\n", session->filename);
goto out_delete;
}
out_delete:
int cmd_evlist(int argc, const char **argv, const char *prefix __used)
{
struct perf_attr_details details = { .verbose = false, };
- const char *input_name;
+ const char *input_name = NULL;
const struct option options[] = {
OPT_STRING('i', "input", &input_name, "file",
"Input file name"),
}
if (err == ENOENT) {
- ui__warning("The %s event is not supported.\n",
+ ui__error("The %s event is not supported.\n",
event_name(pos));
exit(EXIT_FAILURE);
}
usage_with_options(record_usage, record_options);
if (rec->force && rec->append_file) {
- fprintf(stderr, "Can't overwrite and append at the same time."
- " You need to choose between -f and -A");
+ ui__error("Can't overwrite and append at the same time."
+ " You need to choose between -f and -A");
usage_with_options(record_usage, record_options);
} else if (rec->append_file) {
rec->write_mode = WRITE_APPEND;
}
if (nr_cgroups && !rec->opts.target.system_wide) {
- fprintf(stderr, "cgroup monitoring only available in"
- " system-wide mode\n");
+ ui__error("cgroup monitoring only available in"
+ " system-wide mode\n");
usage_with_options(record_usage, record_options);
}
int saved_errno = errno;
perf_target__strerror(&rec->opts.target, err, errbuf, BUFSIZ);
- ui__warning("%s", errbuf);
+ ui__error("%s", errbuf);
err = -saved_errno;
goto out_free_fd;
else if (rec->opts.freq) {
rec->opts.default_interval = rec->opts.freq;
} else {
- fprintf(stderr, "frequency and count are zero, aborting\n");
+ ui__error("frequency and count are zero, aborting\n");
err = -EINVAL;
goto out_free_fd;
}
if (!(self->sample_type & PERF_SAMPLE_CALLCHAIN)) {
if (sort__has_parent) {
- ui__warning("Selected --sort parent, but no "
+ ui__error("Selected --sort parent, but no "
"callchain data. Did you call "
"'perf record' without -g?\n");
return -EINVAL;
}
if (symbol_conf.use_callchain) {
- ui__warning("Selected -g but no callchain data. Did "
+ ui__error("Selected -g but no callchain data. Did "
"you call 'perf record' without -g?\n");
return -1;
}
!symbol_conf.use_callchain) {
symbol_conf.use_callchain = true;
if (callchain_register_param(&callchain_param) < 0) {
- ui__warning("Can't register callchain "
- "params.\n");
+ ui__error("Can't register callchain params.\n");
return -EINVAL;
}
}
if (sort__branch_mode == 1) {
if (!(self->sample_type & PERF_SAMPLE_BRANCH_STACK)) {
- fprintf(stderr, "selected -b but no branch data."
- " Did you call perf record without"
- " -b?\n");
+ ui__error("Selected -b but no branch data. "
+ "Did you call perf record without -b?\n");
return -1;
}
}
}
if (nr_samples == 0) {
- ui__warning("The %s file has no samples!\n", session->filename);
+ ui__error("The %s file has no samples!\n", session->filename);
goto out_delete;
}
attr->config = PERF_COUNT_SW_CPU_CLOCK;
if (counter->name) {
free(counter->name);
- counter->name = strdup(event_name(counter));
+ counter->name = NULL;
}
goto try_again;
}
if (err == ENOENT) {
- ui__warning("The %s event is not supported.\n",
+ ui__error("The %s event is not supported.\n",
event_name(counter));
goto out_err;
} else if (err == EMFILE) {
- ui__warning("Too many events are opened.\n"
+ ui__error("Too many events are opened.\n"
"Try again after reducing the number of events\n");
goto out_err;
}
- ui__warning("The sys_perf_event_open() syscall "
+ ui__error("The sys_perf_event_open() syscall "
"returned with %d (%s). /bin/dmesg "
"may provide additional information.\n"
"No CONFIG_PERF_EVENTS=y kernel support "
}
if (perf_evlist__mmap(evlist, top->mmap_pages, false) < 0) {
- ui__warning("Failed to mmap with %d (%s)\n",
+ ui__error("Failed to mmap with %d (%s)\n",
errno, strerror(errno));
goto out_err;
}
{
if (!top->sort_has_symbols) {
if (symbol_conf.use_callchain) {
- ui__warning("Selected -g but \"sym\" not present in --sort/-s.");
+ ui__error("Selected -g but \"sym\" not present in --sort/-s.");
return -EINVAL;
}
} else if (!top->dont_use_callchains && callchain_param.mode != CHAIN_NONE) {
if (callchain_register_param(&callchain_param) < 0) {
- ui__warning("Can't register callchain params.\n");
+ ui__error("Can't register callchain params.\n");
return -EINVAL;
}
}
if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui :
display_thread), top)) {
- printf("Could not create display thread.\n");
+ ui__error("Could not create display thread.\n");
exit(-1);
}
param.sched_priority = top->realtime_prio;
if (sched_setscheduler(0, SCHED_FIFO, ¶m)) {
- printf("Could not set realtime priority.\n");
+ ui__error("Could not set realtime priority.\n");
exit(-1);
}
}
int saved_errno = errno;
perf_target__strerror(&top.target, status, errbuf, BUFSIZ);
- ui__warning("%s", errbuf);
+ ui__error("%s", errbuf);
status = -saved_errno;
goto out_delete_evlist;
if (!top.evlist->nr_entries &&
perf_evlist__add_default(top.evlist) < 0) {
- pr_err("Not enough memory for event selector list\n");
+ ui__error("Not enough memory for event selector list\n");
return -ENOMEM;
}
else if (top.freq) {
top.default_interval = top.freq;
} else {
- fprintf(stderr, "frequency and count are zero, aborting\n");
+ ui__error("frequency and count are zero, aborting\n");
exit(EXIT_FAILURE);
}
unsigned int freq;
unsigned int mmap_pages;
unsigned int user_freq;
- int branch_stack;
+ u64 branch_stack;
u64 default_interval;
u64 user_interval;
};
return ret;
}
-void ui_browser__set_percent_color(struct ui_browser *self,
+void ui_browser__set_percent_color(struct ui_browser *browser,
double percent, bool current)
{
- int color = ui_browser__percent_color(self, percent, current);
- ui_browser__set_color(self, color);
+ int color = ui_browser__percent_color(browser, percent, current);
+ ui_browser__set_color(browser, color);
}
-void ui_browser__gotorc(struct ui_browser *self, int y, int x)
+void ui_browser__gotorc(struct ui_browser *browser, int y, int x)
{
- SLsmg_gotorc(self->y + y, self->x + x);
+ SLsmg_gotorc(browser->y + y, browser->x + x);
}
static struct list_head *
return NULL;
}
-void ui_browser__list_head_seek(struct ui_browser *self, off_t offset, int whence)
+void ui_browser__list_head_seek(struct ui_browser *browser, off_t offset, int whence)
{
- struct list_head *head = self->entries;
+ struct list_head *head = browser->entries;
struct list_head *pos;
- if (self->nr_entries == 0)
+ if (browser->nr_entries == 0)
return;
switch (whence) {
case SEEK_SET:
- pos = ui_browser__list_head_filter_entries(self, head->next);
+ pos = ui_browser__list_head_filter_entries(browser, head->next);
break;
case SEEK_CUR:
- pos = self->top;
+ pos = browser->top;
break;
case SEEK_END:
- pos = ui_browser__list_head_filter_prev_entries(self, head->prev);
+ pos = ui_browser__list_head_filter_prev_entries(browser, head->prev);
break;
default:
return;
if (offset > 0) {
while (offset-- != 0)
- pos = ui_browser__list_head_filter_entries(self, pos->next);
+ pos = ui_browser__list_head_filter_entries(browser, pos->next);
} else {
while (offset++ != 0)
- pos = ui_browser__list_head_filter_prev_entries(self, pos->prev);
+ pos = ui_browser__list_head_filter_prev_entries(browser, pos->prev);
}
- self->top = pos;
+ browser->top = pos;
}
-void ui_browser__rb_tree_seek(struct ui_browser *self, off_t offset, int whence)
+void ui_browser__rb_tree_seek(struct ui_browser *browser, off_t offset, int whence)
{
- struct rb_root *root = self->entries;
+ struct rb_root *root = browser->entries;
struct rb_node *nd;
switch (whence) {
nd = rb_first(root);
break;
case SEEK_CUR:
- nd = self->top;
+ nd = browser->top;
break;
case SEEK_END:
nd = rb_last(root);
nd = rb_prev(nd);
}
- self->top = nd;
+ browser->top = nd;
}
-unsigned int ui_browser__rb_tree_refresh(struct ui_browser *self)
+unsigned int ui_browser__rb_tree_refresh(struct ui_browser *browser)
{
struct rb_node *nd;
int row = 0;
- if (self->top == NULL)
- self->top = rb_first(self->entries);
+ if (browser->top == NULL)
+ browser->top = rb_first(browser->entries);
- nd = self->top;
+ nd = browser->top;
while (nd != NULL) {
- ui_browser__gotorc(self, row, 0);
- self->write(self, nd, row);
- if (++row == self->height)
+ ui_browser__gotorc(browser, row, 0);
+ browser->write(browser, nd, row);
+ if (++row == browser->height)
break;
nd = rb_next(nd);
}
return row;
}
-bool ui_browser__is_current_entry(struct ui_browser *self, unsigned row)
+bool ui_browser__is_current_entry(struct ui_browser *browser, unsigned row)
{
- return self->top_idx + row == self->index;
+ return browser->top_idx + row == browser->index;
}
-void ui_browser__refresh_dimensions(struct ui_browser *self)
+void ui_browser__refresh_dimensions(struct ui_browser *browser)
{
- self->width = SLtt_Screen_Cols - 1;
- self->height = SLtt_Screen_Rows - 2;
- self->y = 1;
- self->x = 0;
+ browser->width = SLtt_Screen_Cols - 1;
+ browser->height = SLtt_Screen_Rows - 2;
+ browser->y = 1;
+ browser->x = 0;
}
void ui_browser__handle_resize(struct ui_browser *browser)
return key == K_ENTER || toupper(key) == 'Y';
}
-void ui_browser__reset_index(struct ui_browser *self)
+void ui_browser__reset_index(struct ui_browser *browser)
{
- self->index = self->top_idx = 0;
- self->seek(self, 0, SEEK_SET);
+ browser->index = browser->top_idx = 0;
+ browser->seek(browser, 0, SEEK_SET);
}
void __ui_browser__show_title(struct ui_browser *browser, const char *title)
pthread_mutex_unlock(&ui__lock);
}
-int ui_browser__show(struct ui_browser *self, const char *title,
+int ui_browser__show(struct ui_browser *browser, const char *title,
const char *helpline, ...)
{
int err;
va_list ap;
- ui_browser__refresh_dimensions(self);
+ ui_browser__refresh_dimensions(browser);
pthread_mutex_lock(&ui__lock);
- __ui_browser__show_title(self, title);
+ __ui_browser__show_title(browser, title);
- self->title = title;
- free(self->helpline);
- self->helpline = NULL;
+ browser->title = title;
+ free(browser->helpline);
+ browser->helpline = NULL;
va_start(ap, helpline);
- err = vasprintf(&self->helpline, helpline, ap);
+ err = vasprintf(&browser->helpline, helpline, ap);
va_end(ap);
if (err > 0)
- ui_helpline__push(self->helpline);
+ ui_helpline__push(browser->helpline);
pthread_mutex_unlock(&ui__lock);
return err ? 0 : -1;
}
browser->seek(browser, browser->top_idx, SEEK_SET);
}
-int ui_browser__run(struct ui_browser *self, int delay_secs)
+int ui_browser__run(struct ui_browser *browser, int delay_secs)
{
int err, key;
off_t offset;
pthread_mutex_lock(&ui__lock);
- err = __ui_browser__refresh(self);
+ err = __ui_browser__refresh(browser);
SLsmg_refresh();
pthread_mutex_unlock(&ui__lock);
if (err < 0)
if (key == K_RESIZE) {
ui__refresh_dimensions(false);
- ui_browser__refresh_dimensions(self);
- __ui_browser__show_title(self, self->title);
- ui_helpline__puts(self->helpline);
+ ui_browser__refresh_dimensions(browser);
+ __ui_browser__show_title(browser, browser->title);
+ ui_helpline__puts(browser->helpline);
continue;
}
- if (self->use_navkeypressed && !self->navkeypressed) {
+ if (browser->use_navkeypressed && !browser->navkeypressed) {
if (key == K_DOWN || key == K_UP ||
key == K_PGDN || key == K_PGUP ||
key == K_HOME || key == K_END ||
key == ' ') {
- self->navkeypressed = true;
+ browser->navkeypressed = true;
continue;
} else
return key;
switch (key) {
case K_DOWN:
- if (self->index == self->nr_entries - 1)
+ if (browser->index == browser->nr_entries - 1)
break;
- ++self->index;
- if (self->index == self->top_idx + self->height) {
- ++self->top_idx;
- self->seek(self, +1, SEEK_CUR);
+ ++browser->index;
+ if (browser->index == browser->top_idx + browser->height) {
+ ++browser->top_idx;
+ browser->seek(browser, +1, SEEK_CUR);
}
break;
case K_UP:
- if (self->index == 0)
+ if (browser->index == 0)
break;
- --self->index;
- if (self->index < self->top_idx) {
- --self->top_idx;
- self->seek(self, -1, SEEK_CUR);
+ --browser->index;
+ if (browser->index < browser->top_idx) {
+ --browser->top_idx;
+ browser->seek(browser, -1, SEEK_CUR);
}
break;
case K_PGDN:
case ' ':
- if (self->top_idx + self->height > self->nr_entries - 1)
+ if (browser->top_idx + browser->height > browser->nr_entries - 1)
break;
- offset = self->height;
- if (self->index + offset > self->nr_entries - 1)
- offset = self->nr_entries - 1 - self->index;
- self->index += offset;
- self->top_idx += offset;
- self->seek(self, +offset, SEEK_CUR);
+ offset = browser->height;
+ if (browser->index + offset > browser->nr_entries - 1)
+ offset = browser->nr_entries - 1 - browser->index;
+ browser->index += offset;
+ browser->top_idx += offset;
+ browser->seek(browser, +offset, SEEK_CUR);
break;
case K_PGUP:
- if (self->top_idx == 0)
+ if (browser->top_idx == 0)
break;
- if (self->top_idx < self->height)
- offset = self->top_idx;
+ if (browser->top_idx < browser->height)
+ offset = browser->top_idx;
else
- offset = self->height;
+ offset = browser->height;
- self->index -= offset;
- self->top_idx -= offset;
- self->seek(self, -offset, SEEK_CUR);
+ browser->index -= offset;
+ browser->top_idx -= offset;
+ browser->seek(browser, -offset, SEEK_CUR);
break;
case K_HOME:
- ui_browser__reset_index(self);
+ ui_browser__reset_index(browser);
break;
case K_END:
- offset = self->height - 1;
- if (offset >= self->nr_entries)
- offset = self->nr_entries - 1;
+ offset = browser->height - 1;
+ if (offset >= browser->nr_entries)
+ offset = browser->nr_entries - 1;
- self->index = self->nr_entries - 1;
- self->top_idx = self->index - offset;
- self->seek(self, -offset, SEEK_END);
+ browser->index = browser->nr_entries - 1;
+ browser->top_idx = browser->index - offset;
+ browser->seek(browser, -offset, SEEK_END);
break;
default:
return key;
return -1;
}
-unsigned int ui_browser__list_head_refresh(struct ui_browser *self)
+unsigned int ui_browser__list_head_refresh(struct ui_browser *browser)
{
struct list_head *pos;
- struct list_head *head = self->entries;
+ struct list_head *head = browser->entries;
int row = 0;
- if (self->top == NULL || self->top == self->entries)
- self->top = ui_browser__list_head_filter_entries(self, head->next);
+ if (browser->top == NULL || browser->top == browser->entries)
+ browser->top = ui_browser__list_head_filter_entries(browser, head->next);
- pos = self->top;
+ pos = browser->top;
list_for_each_from(pos, head) {
- if (!self->filter || !self->filter(self, pos)) {
- ui_browser__gotorc(self, row, 0);
- self->write(self, pos, row);
- if (++row == self->height)
+ if (!browser->filter || !browser->filter(browser, pos)) {
+ ui_browser__gotorc(browser, row, 0);
+ browser->write(browser, pos, row);
+ if (++row == browser->height)
break;
}
}
struct ui_browser__colorset *c = &ui_browser__colorsets[i++];
sltt_set_color(c->colorset, c->name, c->fg, c->bg);
}
+
+ annotate_browser__init();
}
unsigned int ui_browser__list_head_refresh(struct ui_browser *self);
void ui_browser__init(void);
+void annotate_browser__init(void);
#endif /* _PERF_UI_BROWSER_H_ */
int jump_sources;
};
+static struct annotate_browser_opt {
+ bool hide_src_code,
+ use_offset,
+ jump_arrows,
+ show_nr_jumps;
+} annotate_browser__opts = {
+ .use_offset = true,
+ .jump_arrows = true,
+};
+
struct annotate_browser {
struct ui_browser b;
struct rb_root entries;
int nr_entries;
int max_jump_sources;
int nr_jumps;
- bool hide_src_code;
- bool use_offset;
- bool jump_arrows;
- bool show_nr_jumps;
bool searching_backwards;
u8 addr_width;
u8 jumps_width;
return (struct browser_disasm_line *)(dl + 1);
}
-static bool disasm_line__filter(struct ui_browser *browser, void *entry)
+static bool disasm_line__filter(struct ui_browser *browser __used, void *entry)
{
- struct annotate_browser *ab = container_of(browser, struct annotate_browser, b);
-
- if (ab->hide_src_code) {
+ if (annotate_browser__opts.hide_src_code) {
struct disasm_line *dl = list_entry(entry, struct disasm_line, node);
return dl->offset == -1;
}
return ui_browser__set_color(&browser->b, color);
}
-static void annotate_browser__write(struct ui_browser *self, void *entry, int row)
+static void annotate_browser__write(struct ui_browser *browser, void *entry, int row)
{
- struct annotate_browser *ab = container_of(self, struct annotate_browser, b);
+ struct annotate_browser *ab = container_of(browser, struct annotate_browser, b);
struct disasm_line *dl = list_entry(entry, struct disasm_line, node);
struct browser_disasm_line *bdl = disasm_line__browser(dl);
- bool current_entry = ui_browser__is_current_entry(self, row);
- bool change_color = (!ab->hide_src_code &&
- (!current_entry || (self->use_navkeypressed &&
- !self->navkeypressed)));
- int width = self->width, printed;
+ bool current_entry = ui_browser__is_current_entry(browser, row);
+ bool change_color = (!annotate_browser__opts.hide_src_code &&
+ (!current_entry || (browser->use_navkeypressed &&
+ !browser->navkeypressed)));
+ int width = browser->width, printed;
char bf[256];
if (dl->offset != -1 && bdl->percent != 0.0) {
- ui_browser__set_percent_color(self, bdl->percent, current_entry);
+ ui_browser__set_percent_color(browser, bdl->percent, current_entry);
slsmg_printf("%6.2f ", bdl->percent);
} else {
- ui_browser__set_percent_color(self, 0, current_entry);
+ ui_browser__set_percent_color(browser, 0, current_entry);
slsmg_write_nstring(" ", 7);
}
SLsmg_write_char(' ');
/* The scroll bar isn't being used */
- if (!self->navkeypressed)
+ if (!browser->navkeypressed)
width += 1;
if (!*dl->line)
u64 addr = dl->offset;
int color = -1;
- if (!ab->use_offset)
+ if (!annotate_browser__opts.use_offset)
addr += ab->start;
- if (!ab->use_offset) {
+ if (!annotate_browser__opts.use_offset) {
printed = scnprintf(bf, sizeof(bf), "%" PRIx64 ": ", addr);
} else {
if (bdl->jump_sources) {
- if (ab->show_nr_jumps) {
+ if (annotate_browser__opts.show_nr_jumps) {
int prev;
printed = scnprintf(bf, sizeof(bf), "%*d ",
ab->jumps_width,
prev = annotate_browser__set_jumps_percent_color(ab, bdl->jump_sources,
current_entry);
slsmg_write_nstring(bf, printed);
- ui_browser__set_color(self, prev);
+ ui_browser__set_color(browser, prev);
}
printed = scnprintf(bf, sizeof(bf), "%*" PRIx64 ": ",
}
if (change_color)
- color = ui_browser__set_color(self, HE_COLORSET_ADDR);
+ color = ui_browser__set_color(browser, HE_COLORSET_ADDR);
slsmg_write_nstring(bf, printed);
if (change_color)
- ui_browser__set_color(self, color);
+ ui_browser__set_color(browser, color);
if (dl->ins && dl->ins->ops->scnprintf) {
if (ins__is_jump(dl->ins)) {
bool fwd = dl->ops.target.offset > (u64)dl->offset;
- ui_browser__write_graph(self, fwd ? SLSMG_DARROW_CHAR :
+ ui_browser__write_graph(browser, fwd ? SLSMG_DARROW_CHAR :
SLSMG_UARROW_CHAR);
SLsmg_write_char(' ');
} else if (ins__is_call(dl->ins)) {
- ui_browser__write_graph(self, SLSMG_RARROW_CHAR);
+ ui_browser__write_graph(browser, SLSMG_RARROW_CHAR);
SLsmg_write_char(' ');
} else {
slsmg_write_nstring(" ", 2);
if (strcmp(dl->name, "retq")) {
slsmg_write_nstring(" ", 2);
} else {
- ui_browser__write_graph(self, SLSMG_LARROW_CHAR);
+ ui_browser__write_graph(browser, SLSMG_LARROW_CHAR);
SLsmg_write_char(' ');
}
}
- disasm_line__scnprintf(dl, bf, sizeof(bf), !ab->use_offset);
+ disasm_line__scnprintf(dl, bf, sizeof(bf), !annotate_browser__opts.use_offset);
slsmg_write_nstring(bf, width - 10 - printed);
}
struct browser_disasm_line *btarget, *bcursor;
unsigned int from, to;
- if (!cursor->ins || !ins__is_jump(cursor->ins) ||
+ if (!cursor || !cursor->ins || !ins__is_jump(cursor->ins) ||
!disasm_line__has_offset(cursor))
return;
bcursor = disasm_line__browser(cursor);
btarget = disasm_line__browser(target);
- if (ab->hide_src_code) {
+ if (annotate_browser__opts.hide_src_code) {
from = bcursor->idx_asm;
to = btarget->idx_asm;
} else {
static unsigned int annotate_browser__refresh(struct ui_browser *browser)
{
- struct annotate_browser *ab = container_of(browser, struct annotate_browser, b);
int ret = ui_browser__list_head_refresh(browser);
- if (ab->jump_arrows)
+ if (annotate_browser__opts.jump_arrows)
annotate_browser__draw_current_jump(browser);
ui_browser__set_color(browser, HE_COLORSET_NORMAL);
rb_insert_color(&bdl->rb_node, root);
}
-static void annotate_browser__set_top(struct annotate_browser *self,
+static void annotate_browser__set_top(struct annotate_browser *browser,
struct disasm_line *pos, u32 idx)
{
unsigned back;
- ui_browser__refresh_dimensions(&self->b);
- back = self->b.height / 2;
- self->b.top_idx = self->b.index = idx;
+ ui_browser__refresh_dimensions(&browser->b);
+ back = browser->b.height / 2;
+ browser->b.top_idx = browser->b.index = idx;
- while (self->b.top_idx != 0 && back != 0) {
+ while (browser->b.top_idx != 0 && back != 0) {
pos = list_entry(pos->node.prev, struct disasm_line, node);
- if (disasm_line__filter(&self->b, &pos->node))
+ if (disasm_line__filter(&browser->b, &pos->node))
continue;
- --self->b.top_idx;
+ --browser->b.top_idx;
--back;
}
- self->b.top = pos;
- self->b.navkeypressed = true;
+ browser->b.top = pos;
+ browser->b.navkeypressed = true;
}
static void annotate_browser__set_rb_top(struct annotate_browser *browser,
{
struct browser_disasm_line *bpos;
struct disasm_line *pos;
+ u32 idx;
bpos = rb_entry(nd, struct browser_disasm_line, rb_node);
pos = ((struct disasm_line *)bpos) - 1;
- annotate_browser__set_top(browser, pos, bpos->idx);
+ idx = bpos->idx;
+ if (annotate_browser__opts.hide_src_code)
+ idx = bpos->idx_asm;
+ annotate_browser__set_top(browser, pos, idx);
browser->curr_hot = nd;
}
dl = list_entry(browser->b.top, struct disasm_line, node);
bdl = disasm_line__browser(dl);
- if (browser->hide_src_code) {
+ if (annotate_browser__opts.hide_src_code) {
if (bdl->idx_asm < offset)
offset = bdl->idx;
browser->b.nr_entries = browser->nr_entries;
- browser->hide_src_code = false;
+ annotate_browser__opts.hide_src_code = false;
browser->b.seek(&browser->b, -offset, SEEK_CUR);
browser->b.top_idx = bdl->idx - offset;
browser->b.index = bdl->idx;
offset = bdl->idx_asm;
browser->b.nr_entries = browser->nr_asm_entries;
- browser->hide_src_code = true;
+ annotate_browser__opts.hide_src_code = true;
browser->b.seek(&browser->b, -offset, SEEK_CUR);
browser->b.top_idx = bdl->idx_asm - offset;
browser->b.index = bdl->idx_asm;
return true;
}
+static void annotate_browser__init_asm_mode(struct annotate_browser *browser)
+{
+ ui_browser__reset_index(&browser->b);
+ browser->b.nr_entries = browser->nr_asm_entries;
+}
+
static bool annotate_browser__callq(struct annotate_browser *browser,
int evidx, void (*timer)(void *arg),
void *arg, int delay_secs)
return __annotate_browser__search_reverse(browser);
}
-static int annotate_browser__run(struct annotate_browser *self, int evidx,
+static void annotate_browser__update_addr_width(struct annotate_browser *browser)
+{
+ if (annotate_browser__opts.use_offset)
+ browser->target_width = browser->min_addr_width;
+ else
+ browser->target_width = browser->max_addr_width;
+
+ browser->addr_width = browser->target_width;
+
+ if (annotate_browser__opts.show_nr_jumps)
+ browser->addr_width += browser->jumps_width + 1;
+}
+
+static int annotate_browser__run(struct annotate_browser *browser, int evidx,
void(*timer)(void *arg),
void *arg, int delay_secs)
{
struct rb_node *nd = NULL;
- struct map_symbol *ms = self->b.priv;
+ struct map_symbol *ms = browser->b.priv;
struct symbol *sym = ms->sym;
const char *help = "Press 'h' for help on key bindings";
int key;
- if (ui_browser__show(&self->b, sym->name, help) < 0)
+ if (ui_browser__show(&browser->b, sym->name, help) < 0)
return -1;
- annotate_browser__calc_percent(self, evidx);
+ annotate_browser__calc_percent(browser, evidx);
- if (self->curr_hot) {
- annotate_browser__set_rb_top(self, self->curr_hot);
- self->b.navkeypressed = false;
+ if (browser->curr_hot) {
+ annotate_browser__set_rb_top(browser, browser->curr_hot);
+ browser->b.navkeypressed = false;
}
- nd = self->curr_hot;
+ nd = browser->curr_hot;
while (1) {
- key = ui_browser__run(&self->b, delay_secs);
+ key = ui_browser__run(&browser->b, delay_secs);
if (delay_secs != 0) {
- annotate_browser__calc_percent(self, evidx);
+ annotate_browser__calc_percent(browser, evidx);
/*
* Current line focus got out of the list of most active
* lines, NULL it so that if TAB|UNTAB is pressed, we
if (nd != NULL) {
nd = rb_prev(nd);
if (nd == NULL)
- nd = rb_last(&self->entries);
+ nd = rb_last(&browser->entries);
} else
- nd = self->curr_hot;
+ nd = browser->curr_hot;
break;
case K_UNTAB:
if (nd != NULL)
nd = rb_next(nd);
if (nd == NULL)
- nd = rb_first(&self->entries);
+ nd = rb_first(&browser->entries);
else
- nd = self->curr_hot;
+ nd = browser->curr_hot;
break;
case K_F1:
case 'h':
- ui_browser__help_window(&self->b,
+ ui_browser__help_window(&browser->b,
"UP/DOWN/PGUP\n"
"PGDN/SPACE Navigate\n"
"q/ESC/CTRL+C Exit\n\n"
"? Search previous string\n");
continue;
case 'H':
- nd = self->curr_hot;
+ nd = browser->curr_hot;
break;
case 's':
- if (annotate_browser__toggle_source(self))
+ if (annotate_browser__toggle_source(browser))
ui_helpline__puts(help);
continue;
case 'o':
- self->use_offset = !self->use_offset;
- if (self->use_offset)
- self->target_width = self->min_addr_width;
- else
- self->target_width = self->max_addr_width;
-update_addr_width:
- self->addr_width = self->target_width;
- if (self->show_nr_jumps)
- self->addr_width += self->jumps_width + 1;
+ annotate_browser__opts.use_offset = !annotate_browser__opts.use_offset;
+ annotate_browser__update_addr_width(browser);
continue;
case 'j':
- self->jump_arrows = !self->jump_arrows;
+ annotate_browser__opts.jump_arrows = !annotate_browser__opts.jump_arrows;
continue;
case 'J':
- self->show_nr_jumps = !self->show_nr_jumps;
- goto update_addr_width;
+ annotate_browser__opts.show_nr_jumps = !annotate_browser__opts.show_nr_jumps;
+ annotate_browser__update_addr_width(browser);
+ continue;
case '/':
- if (annotate_browser__search(self, delay_secs)) {
+ if (annotate_browser__search(browser, delay_secs)) {
show_help:
ui_helpline__puts(help);
}
continue;
case 'n':
- if (self->searching_backwards ?
- annotate_browser__continue_search_reverse(self, delay_secs) :
- annotate_browser__continue_search(self, delay_secs))
+ if (browser->searching_backwards ?
+ annotate_browser__continue_search_reverse(browser, delay_secs) :
+ annotate_browser__continue_search(browser, delay_secs))
goto show_help;
continue;
case '?':
- if (annotate_browser__search_reverse(self, delay_secs))
+ if (annotate_browser__search_reverse(browser, delay_secs))
goto show_help;
continue;
+ case 'D': {
+ static int seq;
+ ui_helpline__pop();
+ ui_helpline__fpush("%d: nr_ent=%d, height=%d, idx=%d, top_idx=%d, nr_asm_entries=%d",
+ seq++, browser->b.nr_entries,
+ browser->b.height,
+ browser->b.index,
+ browser->b.top_idx,
+ browser->nr_asm_entries);
+ }
+ continue;
case K_ENTER:
case K_RIGHT:
- if (self->selection == NULL)
+ if (browser->selection == NULL)
ui_helpline__puts("Huh? No selection. Report to linux-kernel@vger.kernel.org");
- else if (self->selection->offset == -1)
+ else if (browser->selection->offset == -1)
ui_helpline__puts("Actions are only available for assembly lines.");
- else if (!self->selection->ins) {
- if (strcmp(self->selection->name, "retq"))
+ else if (!browser->selection->ins) {
+ if (strcmp(browser->selection->name, "retq"))
goto show_sup_ins;
goto out;
- } else if (!(annotate_browser__jump(self) ||
- annotate_browser__callq(self, evidx, timer, arg, delay_secs))) {
+ } else if (!(annotate_browser__jump(browser) ||
+ annotate_browser__callq(browser, evidx, timer, arg, delay_secs))) {
show_sup_ins:
ui_helpline__puts("Actions are only available for 'callq', 'retq' & jump instructions.");
}
}
if (nd != NULL)
- annotate_browser__set_rb_top(self, nd);
+ annotate_browser__set_rb_top(browser, nd);
}
out:
- ui_browser__hide(&self->b);
+ ui_browser__hide(&browser->b);
return key;
}
.priv = &ms,
.use_navkeypressed = true,
},
- .use_offset = true,
- .jump_arrows = true,
};
int ret = -1;
browser.b.nr_entries = browser.nr_entries;
browser.b.entries = ¬es->src->source,
browser.b.width += 18; /* Percentage */
+
+ if (annotate_browser__opts.hide_src_code)
+ annotate_browser__init_asm_mode(&browser);
+
+ annotate_browser__update_addr_width(&browser);
+
ret = annotate_browser__run(&browser, evidx, timer, arg, delay_secs);
list_for_each_entry_safe(pos, n, ¬es->src->source, node) {
list_del(&pos->node);
free(browser.offsets);
return ret;
}
+
+#define ANNOTATE_CFG(n) \
+ { .name = #n, .value = &annotate_browser__opts.n, }
+
+/*
+ * Keep the entries sorted, they are bsearch'ed
+ */
+static struct annotate__config {
+ const char *name;
+ bool *value;
+} annotate__configs[] = {
+ ANNOTATE_CFG(hide_src_code),
+ ANNOTATE_CFG(jump_arrows),
+ ANNOTATE_CFG(show_nr_jumps),
+ ANNOTATE_CFG(use_offset),
+};
+
+#undef ANNOTATE_CFG
+
+static int annotate_config__cmp(const void *name, const void *cfgp)
+{
+ const struct annotate__config *cfg = cfgp;
+
+ return strcmp(name, cfg->name);
+}
+
+static int annotate__config(const char *var, const char *value, void *data __used)
+{
+ struct annotate__config *cfg;
+ const char *name;
+
+ if (prefixcmp(var, "annotate.") != 0)
+ return 0;
+
+ name = var + 9;
+ cfg = bsearch(name, annotate__configs, ARRAY_SIZE(annotate__configs),
+ sizeof(struct annotate__config), annotate_config__cmp);
+
+ if (cfg == NULL)
+ return -1;
+
+ *cfg->value = perf_config_bool(name, value);
+ return 0;
+}
+
+void annotate_browser__init(void)
+{
+ perf_config(annotate__config, NULL);
+}
bool has_symbols;
};
-static int hists__browser_title(struct hists *self, char *bf, size_t size,
+static int hists__browser_title(struct hists *hists, char *bf, size_t size,
const char *ev_name);
-static void hist_browser__refresh_dimensions(struct hist_browser *self)
+static void hist_browser__refresh_dimensions(struct hist_browser *browser)
{
/* 3 == +/- toggle symbol before actual hist_entry rendering */
- self->b.width = 3 + (hists__sort_list_width(self->hists) +
+ browser->b.width = 3 + (hists__sort_list_width(browser->hists) +
sizeof("[k]"));
}
-static void hist_browser__reset(struct hist_browser *self)
+static void hist_browser__reset(struct hist_browser *browser)
{
- self->b.nr_entries = self->hists->nr_entries;
- hist_browser__refresh_dimensions(self);
- ui_browser__reset_index(&self->b);
+ browser->b.nr_entries = browser->hists->nr_entries;
+ hist_browser__refresh_dimensions(browser);
+ ui_browser__reset_index(&browser->b);
}
static char tree__folded_sign(bool unfolded)
return unfolded ? '-' : '+';
}
-static char map_symbol__folded(const struct map_symbol *self)
+static char map_symbol__folded(const struct map_symbol *ms)
{
- return self->has_children ? tree__folded_sign(self->unfolded) : ' ';
+ return ms->has_children ? tree__folded_sign(ms->unfolded) : ' ';
}
-static char hist_entry__folded(const struct hist_entry *self)
+static char hist_entry__folded(const struct hist_entry *he)
{
- return map_symbol__folded(&self->ms);
+ return map_symbol__folded(&he->ms);
}
-static char callchain_list__folded(const struct callchain_list *self)
+static char callchain_list__folded(const struct callchain_list *cl)
{
- return map_symbol__folded(&self->ms);
+ return map_symbol__folded(&cl->ms);
}
-static void map_symbol__set_folding(struct map_symbol *self, bool unfold)
+static void map_symbol__set_folding(struct map_symbol *ms, bool unfold)
{
- self->unfolded = unfold ? self->has_children : false;
+ ms->unfolded = unfold ? ms->has_children : false;
}
-static int callchain_node__count_rows_rb_tree(struct callchain_node *self)
+static int callchain_node__count_rows_rb_tree(struct callchain_node *node)
{
int n = 0;
struct rb_node *nd;
- for (nd = rb_first(&self->rb_root); nd; nd = rb_next(nd)) {
+ for (nd = rb_first(&node->rb_root); nd; nd = rb_next(nd)) {
struct callchain_node *child = rb_entry(nd, struct callchain_node, rb_node);
struct callchain_list *chain;
char folded_sign = ' '; /* No children */
return n;
}
-static bool map_symbol__toggle_fold(struct map_symbol *self)
+static bool map_symbol__toggle_fold(struct map_symbol *ms)
{
- if (!self)
+ if (!ms)
return false;
- if (!self->has_children)
+ if (!ms->has_children)
return false;
- self->unfolded = !self->unfolded;
+ ms->unfolded = !ms->unfolded;
return true;
}
-static void callchain_node__init_have_children_rb_tree(struct callchain_node *self)
+static void callchain_node__init_have_children_rb_tree(struct callchain_node *node)
{
- struct rb_node *nd = rb_first(&self->rb_root);
+ struct rb_node *nd = rb_first(&node->rb_root);
- for (nd = rb_first(&self->rb_root); nd; nd = rb_next(nd)) {
+ for (nd = rb_first(&node->rb_root); nd; nd = rb_next(nd)) {
struct callchain_node *child = rb_entry(nd, struct callchain_node, rb_node);
struct callchain_list *chain;
bool first = true;
}
}
-static void callchain_node__init_have_children(struct callchain_node *self)
+static void callchain_node__init_have_children(struct callchain_node *node)
{
struct callchain_list *chain;
- list_for_each_entry(chain, &self->val, list)
- chain->ms.has_children = !RB_EMPTY_ROOT(&self->rb_root);
+ list_for_each_entry(chain, &node->val, list)
+ chain->ms.has_children = !RB_EMPTY_ROOT(&node->rb_root);
- callchain_node__init_have_children_rb_tree(self);
+ callchain_node__init_have_children_rb_tree(node);
}
-static void callchain__init_have_children(struct rb_root *self)
+static void callchain__init_have_children(struct rb_root *root)
{
struct rb_node *nd;
- for (nd = rb_first(self); nd; nd = rb_next(nd)) {
+ for (nd = rb_first(root); nd; nd = rb_next(nd)) {
struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
callchain_node__init_have_children(node);
}
}
-static void hist_entry__init_have_children(struct hist_entry *self)
+static void hist_entry__init_have_children(struct hist_entry *he)
{
- if (!self->init_have_children) {
- self->ms.has_children = !RB_EMPTY_ROOT(&self->sorted_chain);
- callchain__init_have_children(&self->sorted_chain);
- self->init_have_children = true;
+ if (!he->init_have_children) {
+ he->ms.has_children = !RB_EMPTY_ROOT(&he->sorted_chain);
+ callchain__init_have_children(&he->sorted_chain);
+ he->init_have_children = true;
}
}
-static bool hist_browser__toggle_fold(struct hist_browser *self)
+static bool hist_browser__toggle_fold(struct hist_browser *browser)
{
- if (map_symbol__toggle_fold(self->selection)) {
- struct hist_entry *he = self->he_selection;
+ if (map_symbol__toggle_fold(browser->selection)) {
+ struct hist_entry *he = browser->he_selection;
hist_entry__init_have_children(he);
- self->hists->nr_entries -= he->nr_rows;
+ browser->hists->nr_entries -= he->nr_rows;
if (he->ms.unfolded)
he->nr_rows = callchain__count_rows(&he->sorted_chain);
else
he->nr_rows = 0;
- self->hists->nr_entries += he->nr_rows;
- self->b.nr_entries = self->hists->nr_entries;
+ browser->hists->nr_entries += he->nr_rows;
+ browser->b.nr_entries = browser->hists->nr_entries;
return true;
}
return false;
}
-static int callchain_node__set_folding_rb_tree(struct callchain_node *self, bool unfold)
+static int callchain_node__set_folding_rb_tree(struct callchain_node *node, bool unfold)
{
int n = 0;
struct rb_node *nd;
- for (nd = rb_first(&self->rb_root); nd; nd = rb_next(nd)) {
+ for (nd = rb_first(&node->rb_root); nd; nd = rb_next(nd)) {
struct callchain_node *child = rb_entry(nd, struct callchain_node, rb_node);
struct callchain_list *chain;
bool has_children = false;
return n;
}
-static void hist_entry__set_folding(struct hist_entry *self, bool unfold)
+static void hist_entry__set_folding(struct hist_entry *he, bool unfold)
{
- hist_entry__init_have_children(self);
- map_symbol__set_folding(&self->ms, unfold);
+ hist_entry__init_have_children(he);
+ map_symbol__set_folding(&he->ms, unfold);
- if (self->ms.has_children) {
- int n = callchain__set_folding(&self->sorted_chain, unfold);
- self->nr_rows = unfold ? n : 0;
+ if (he->ms.has_children) {
+ int n = callchain__set_folding(&he->sorted_chain, unfold);
+ he->nr_rows = unfold ? n : 0;
} else
- self->nr_rows = 0;
+ he->nr_rows = 0;
}
-static void hists__set_folding(struct hists *self, bool unfold)
+static void hists__set_folding(struct hists *hists, bool unfold)
{
struct rb_node *nd;
- self->nr_entries = 0;
+ hists->nr_entries = 0;
- for (nd = rb_first(&self->entries); nd; nd = rb_next(nd)) {
+ for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
hist_entry__set_folding(he, unfold);
- self->nr_entries += 1 + he->nr_rows;
+ hists->nr_entries += 1 + he->nr_rows;
}
}
-static void hist_browser__set_folding(struct hist_browser *self, bool unfold)
+static void hist_browser__set_folding(struct hist_browser *browser, bool unfold)
{
- hists__set_folding(self->hists, unfold);
- self->b.nr_entries = self->hists->nr_entries;
+ hists__set_folding(browser->hists, unfold);
+ browser->b.nr_entries = browser->hists->nr_entries;
/* Go to the start, we may be way after valid entries after a collapse */
- ui_browser__reset_index(&self->b);
+ ui_browser__reset_index(&browser->b);
}
static void ui_browser__warn_lost_events(struct ui_browser *browser)
"Or reduce the sampling frequency.");
}
-static int hist_browser__run(struct hist_browser *self, const char *ev_name,
+static int hist_browser__run(struct hist_browser *browser, const char *ev_name,
void(*timer)(void *arg), void *arg, int delay_secs)
{
int key;
char title[160];
- self->b.entries = &self->hists->entries;
- self->b.nr_entries = self->hists->nr_entries;
+ browser->b.entries = &browser->hists->entries;
+ browser->b.nr_entries = browser->hists->nr_entries;
- hist_browser__refresh_dimensions(self);
- hists__browser_title(self->hists, title, sizeof(title), ev_name);
+ hist_browser__refresh_dimensions(browser);
+ hists__browser_title(browser->hists, title, sizeof(title), ev_name);
- if (ui_browser__show(&self->b, title,
+ if (ui_browser__show(&browser->b, title,
"Press '?' for help on key bindings") < 0)
return -1;
while (1) {
- key = ui_browser__run(&self->b, delay_secs);
+ key = ui_browser__run(&browser->b, delay_secs);
switch (key) {
case K_TIMER:
timer(arg);
- ui_browser__update_nr_entries(&self->b, self->hists->nr_entries);
+ ui_browser__update_nr_entries(&browser->b, browser->hists->nr_entries);
- if (self->hists->stats.nr_lost_warned !=
- self->hists->stats.nr_events[PERF_RECORD_LOST]) {
- self->hists->stats.nr_lost_warned =
- self->hists->stats.nr_events[PERF_RECORD_LOST];
- ui_browser__warn_lost_events(&self->b);
+ if (browser->hists->stats.nr_lost_warned !=
+ browser->hists->stats.nr_events[PERF_RECORD_LOST]) {
+ browser->hists->stats.nr_lost_warned =
+ browser->hists->stats.nr_events[PERF_RECORD_LOST];
+ ui_browser__warn_lost_events(&browser->b);
}
- hists__browser_title(self->hists, title, sizeof(title), ev_name);
- ui_browser__show_title(&self->b, title);
+ hists__browser_title(browser->hists, title, sizeof(title), ev_name);
+ ui_browser__show_title(&browser->b, title);
continue;
case 'D': { /* Debug */
static int seq;
- struct hist_entry *h = rb_entry(self->b.top,
+ struct hist_entry *h = rb_entry(browser->b.top,
struct hist_entry, rb_node);
ui_helpline__pop();
ui_helpline__fpush("%d: nr_ent=(%d,%d), height=%d, idx=%d, fve: idx=%d, row_off=%d, nrows=%d",
- seq++, self->b.nr_entries,
- self->hists->nr_entries,
- self->b.height,
- self->b.index,
- self->b.top_idx,
+ seq++, browser->b.nr_entries,
+ browser->hists->nr_entries,
+ browser->b.height,
+ browser->b.index,
+ browser->b.top_idx,
h->row_offset, h->nr_rows);
}
break;
case 'C':
/* Collapse the whole world. */
- hist_browser__set_folding(self, false);
+ hist_browser__set_folding(browser, false);
break;
case 'E':
/* Expand the whole world. */
- hist_browser__set_folding(self, true);
+ hist_browser__set_folding(browser, true);
break;
case K_ENTER:
- if (hist_browser__toggle_fold(self))
+ if (hist_browser__toggle_fold(browser))
break;
/* fall thru */
default:
}
}
out:
- ui_browser__hide(&self->b);
+ ui_browser__hide(&browser->b);
return key;
}
-static char *callchain_list__sym_name(struct callchain_list *self,
+static char *callchain_list__sym_name(struct callchain_list *cl,
char *bf, size_t bfsize)
{
- if (self->ms.sym)
- return self->ms.sym->name;
+ if (cl->ms.sym)
+ return cl->ms.sym->name;
- snprintf(bf, bfsize, "%#" PRIx64, self->ip);
+ snprintf(bf, bfsize, "%#" PRIx64, cl->ip);
return bf;
}
#define LEVEL_OFFSET_STEP 3
-static int hist_browser__show_callchain_node_rb_tree(struct hist_browser *self,
+static int hist_browser__show_callchain_node_rb_tree(struct hist_browser *browser,
struct callchain_node *chain_node,
u64 total, int level,
unsigned short row,
}
color = HE_COLORSET_NORMAL;
- width = self->b.width - (offset + extra_offset + 2);
- if (ui_browser__is_current_entry(&self->b, row)) {
- self->selection = &chain->ms;
+ width = browser->b.width - (offset + extra_offset + 2);
+ if (ui_browser__is_current_entry(&browser->b, row)) {
+ browser->selection = &chain->ms;
color = HE_COLORSET_SELECTED;
*is_current_entry = true;
}
- ui_browser__set_color(&self->b, color);
- ui_browser__gotorc(&self->b, row, 0);
+ ui_browser__set_color(&browser->b, color);
+ ui_browser__gotorc(&browser->b, row, 0);
slsmg_write_nstring(" ", offset + extra_offset);
slsmg_printf("%c ", folded_sign);
slsmg_write_nstring(str, width);
free(alloc_str);
- if (++row == self->b.height)
+ if (++row == browser->b.height)
goto out;
do_next:
if (folded_sign == '+')
if (folded_sign == '-') {
const int new_level = level + (extra_offset ? 2 : 1);
- row += hist_browser__show_callchain_node_rb_tree(self, child, new_total,
+ row += hist_browser__show_callchain_node_rb_tree(browser, child, new_total,
new_level, row, row_offset,
is_current_entry);
}
- if (row == self->b.height)
+ if (row == browser->b.height)
goto out;
node = next;
}
return row - first_row;
}
-static int hist_browser__show_callchain_node(struct hist_browser *self,
+static int hist_browser__show_callchain_node(struct hist_browser *browser,
struct callchain_node *node,
int level, unsigned short row,
off_t *row_offset,
struct callchain_list *chain;
int first_row = row,
offset = level * LEVEL_OFFSET_STEP,
- width = self->b.width - offset;
+ width = browser->b.width - offset;
char folded_sign = ' ';
list_for_each_entry(chain, &node->val, list) {
}
color = HE_COLORSET_NORMAL;
- if (ui_browser__is_current_entry(&self->b, row)) {
- self->selection = &chain->ms;
+ if (ui_browser__is_current_entry(&browser->b, row)) {
+ browser->selection = &chain->ms;
color = HE_COLORSET_SELECTED;
*is_current_entry = true;
}
s = callchain_list__sym_name(chain, ipstr, sizeof(ipstr));
- ui_browser__gotorc(&self->b, row, 0);
- ui_browser__set_color(&self->b, color);
+ ui_browser__gotorc(&browser->b, row, 0);
+ ui_browser__set_color(&browser->b, color);
slsmg_write_nstring(" ", offset);
slsmg_printf("%c ", folded_sign);
slsmg_write_nstring(s, width - 2);
- if (++row == self->b.height)
+ if (++row == browser->b.height)
goto out;
}
if (folded_sign == '-')
- row += hist_browser__show_callchain_node_rb_tree(self, node,
- self->hists->stats.total_period,
+ row += hist_browser__show_callchain_node_rb_tree(browser, node,
+ browser->hists->stats.total_period,
level + 1, row,
row_offset,
is_current_entry);
return row - first_row;
}
-static int hist_browser__show_callchain(struct hist_browser *self,
+static int hist_browser__show_callchain(struct hist_browser *browser,
struct rb_root *chain,
int level, unsigned short row,
off_t *row_offset,
for (nd = rb_first(chain); nd; nd = rb_next(nd)) {
struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
- row += hist_browser__show_callchain_node(self, node, level,
+ row += hist_browser__show_callchain_node(browser, node, level,
row, row_offset,
is_current_entry);
- if (row == self->b.height)
+ if (row == browser->b.height)
break;
}
return row - first_row;
}
-static int hist_browser__show_entry(struct hist_browser *self,
+static int hist_browser__show_entry(struct hist_browser *browser,
struct hist_entry *entry,
unsigned short row)
{
char s[256];
double percent;
int printed = 0;
- int width = self->b.width - 6; /* The percentage */
+ int width = browser->b.width - 6; /* The percentage */
char folded_sign = ' ';
- bool current_entry = ui_browser__is_current_entry(&self->b, row);
+ bool current_entry = ui_browser__is_current_entry(&browser->b, row);
off_t row_offset = entry->row_offset;
if (current_entry) {
- self->he_selection = entry;
- self->selection = &entry->ms;
+ browser->he_selection = entry;
+ browser->selection = &entry->ms;
}
if (symbol_conf.use_callchain) {
}
if (row_offset == 0) {
- hist_entry__snprintf(entry, s, sizeof(s), self->hists);
- percent = (entry->period * 100.0) / self->hists->stats.total_period;
+ hist_entry__snprintf(entry, s, sizeof(s), browser->hists);
+ percent = (entry->period * 100.0) / browser->hists->stats.total_period;
- ui_browser__set_percent_color(&self->b, percent, current_entry);
- ui_browser__gotorc(&self->b, row, 0);
+ ui_browser__set_percent_color(&browser->b, percent, current_entry);
+ ui_browser__gotorc(&browser->b, row, 0);
if (symbol_conf.use_callchain) {
slsmg_printf("%c ", folded_sign);
width -= 2;
slsmg_printf(" %5.2f%%", percent);
/* The scroll bar isn't being used */
- if (!self->b.navkeypressed)
+ if (!browser->b.navkeypressed)
width += 1;
- if (!current_entry || !self->b.navkeypressed)
- ui_browser__set_color(&self->b, HE_COLORSET_NORMAL);
+ if (!current_entry || !browser->b.navkeypressed)
+ ui_browser__set_color(&browser->b, HE_COLORSET_NORMAL);
if (symbol_conf.show_nr_samples) {
slsmg_printf(" %11u", entry->nr_events);
} else
--row_offset;
- if (folded_sign == '-' && row != self->b.height) {
- printed += hist_browser__show_callchain(self, &entry->sorted_chain,
+ if (folded_sign == '-' && row != browser->b.height) {
+ printed += hist_browser__show_callchain(browser, &entry->sorted_chain,
1, row, &row_offset,
¤t_entry);
if (current_entry)
- self->he_selection = entry;
+ browser->he_selection = entry;
}
return printed;
}
}
-static unsigned int hist_browser__refresh(struct ui_browser *self)
+static unsigned int hist_browser__refresh(struct ui_browser *browser)
{
unsigned row = 0;
struct rb_node *nd;
- struct hist_browser *hb = container_of(self, struct hist_browser, b);
+ struct hist_browser *hb = container_of(browser, struct hist_browser, b);
- ui_browser__hists_init_top(self);
+ ui_browser__hists_init_top(browser);
- for (nd = self->top; nd; nd = rb_next(nd)) {
+ for (nd = browser->top; nd; nd = rb_next(nd)) {
struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
if (h->filtered)
continue;
row += hist_browser__show_entry(hb, h, row);
- if (row == self->height)
+ if (row == browser->height)
break;
}
return NULL;
}
-static void ui_browser__hists_seek(struct ui_browser *self,
+static void ui_browser__hists_seek(struct ui_browser *browser,
off_t offset, int whence)
{
struct hist_entry *h;
struct rb_node *nd;
bool first = true;
- if (self->nr_entries == 0)
+ if (browser->nr_entries == 0)
return;
- ui_browser__hists_init_top(self);
+ ui_browser__hists_init_top(browser);
switch (whence) {
case SEEK_SET:
- nd = hists__filter_entries(rb_first(self->entries));
+ nd = hists__filter_entries(rb_first(browser->entries));
break;
case SEEK_CUR:
- nd = self->top;
+ nd = browser->top;
goto do_offset;
case SEEK_END:
- nd = hists__filter_prev_entries(rb_last(self->entries));
+ nd = hists__filter_prev_entries(rb_last(browser->entries));
first = false;
break;
default:
* Moves not relative to the first visible entry invalidates its
* row_offset:
*/
- h = rb_entry(self->top, struct hist_entry, rb_node);
+ h = rb_entry(browser->top, struct hist_entry, rb_node);
h->row_offset = 0;
/*
} else {
h->row_offset += offset;
offset = 0;
- self->top = nd;
+ browser->top = nd;
break;
}
}
if (nd == NULL)
break;
--offset;
- self->top = nd;
+ browser->top = nd;
} while (offset != 0);
} else if (offset < 0) {
while (1) {
} else {
h->row_offset += offset;
offset = 0;
- self->top = nd;
+ browser->top = nd;
break;
}
} else {
} else {
h->row_offset = h->nr_rows + offset;
offset = 0;
- self->top = nd;
+ browser->top = nd;
break;
}
}
if (nd == NULL)
break;
++offset;
- self->top = nd;
+ browser->top = nd;
if (offset == 0) {
/*
* Last unfiltered hist_entry, check if it is
first = false;
}
} else {
- self->top = nd;
+ browser->top = nd;
h = rb_entry(nd, struct hist_entry, rb_node);
h->row_offset = 0;
}
static struct hist_browser *hist_browser__new(struct hists *hists)
{
- struct hist_browser *self = zalloc(sizeof(*self));
+ struct hist_browser *browser = zalloc(sizeof(*browser));
- if (self) {
- self->hists = hists;
- self->b.refresh = hist_browser__refresh;
- self->b.seek = ui_browser__hists_seek;
- self->b.use_navkeypressed = true;
+ if (browser) {
+ browser->hists = hists;
+ browser->b.refresh = hist_browser__refresh;
+ browser->b.seek = ui_browser__hists_seek;
+ browser->b.use_navkeypressed = true;
if (sort__branch_mode == 1)
- self->has_symbols = sort_sym_from.list.next != NULL;
+ browser->has_symbols = sort_sym_from.list.next != NULL;
else
- self->has_symbols = sort_sym.list.next != NULL;
+ browser->has_symbols = sort_sym.list.next != NULL;
}
- return self;
+ return browser;
}
-static void hist_browser__delete(struct hist_browser *self)
+static void hist_browser__delete(struct hist_browser *browser)
{
- free(self);
+ free(browser);
}
-static struct hist_entry *hist_browser__selected_entry(struct hist_browser *self)
+static struct hist_entry *hist_browser__selected_entry(struct hist_browser *browser)
{
- return self->he_selection;
+ return browser->he_selection;
}
-static struct thread *hist_browser__selected_thread(struct hist_browser *self)
+static struct thread *hist_browser__selected_thread(struct hist_browser *browser)
{
- return self->he_selection->thread;
+ return browser->he_selection->thread;
}
-static int hists__browser_title(struct hists *self, char *bf, size_t size,
+static int hists__browser_title(struct hists *hists, char *bf, size_t size,
const char *ev_name)
{
char unit;
int printed;
- const struct dso *dso = self->dso_filter;
- const struct thread *thread = self->thread_filter;
- unsigned long nr_samples = self->stats.nr_events[PERF_RECORD_SAMPLE];
- u64 nr_events = self->stats.total_period;
+ const struct dso *dso = hists->dso_filter;
+ const struct thread *thread = hists->thread_filter;
+ unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE];
+ u64 nr_events = hists->stats.total_period;
nr_samples = convert_unit(nr_samples, &unit);
printed = scnprintf(bf, size,
nr_samples, unit, ev_name, nr_events);
- if (self->uid_filter_str)
+ if (hists->uid_filter_str)
printed += snprintf(bf + printed, size - printed,
- ", UID: %s", self->uid_filter_str);
+ ", UID: %s", hists->uid_filter_str);
if (thread)
printed += scnprintf(bf + printed, size - printed,
", Thread: %s(%d)",
void(*timer)(void *arg), void *arg,
int delay_secs)
{
- struct hists *self = &evsel->hists;
- struct hist_browser *browser = hist_browser__new(self);
+ struct hists *hists = &evsel->hists;
+ struct hist_browser *browser = hist_browser__new(hists);
struct branch_info *bi;
struct pstack *fstack;
char *options[16];
"Please enter the name of symbol you want to see",
buf, "ENTER: OK, ESC: Cancel",
delay_secs * 2) == K_ENTER) {
- self->symbol_filter_str = *buf ? buf : NULL;
- hists__filter_by_symbol(self);
+ hists->symbol_filter_str = *buf ? buf : NULL;
+ hists__filter_by_symbol(hists);
hist_browser__reset(browser);
}
continue;
sort_dso.elide = true;
pstack__push(fstack, &browser->hists->dso_filter);
}
- hists__filter_by_dso(self);
+ hists__filter_by_dso(hists);
hist_browser__reset(browser);
} else if (choice == zoom_thread) {
zoom_thread:
sort_thread.elide = true;
pstack__push(fstack, &browser->hists->thread_filter);
}
- hists__filter_by_thread(self);
+ hists__filter_by_thread(hists);
hist_browser__reset(browser);
}
}
break;
/* fall through */
default:
+ use_browser = 0;
if (fallback_to_pager)
setup_pager();
break;
static inline int iskeychar(int c)
{
- return isalnum(c) || c == '-';
+ return isalnum(c) || c == '-' || c == '_';
}
static int get_value(config_fn_t fn, void *data, char *name, unsigned int len)
#include "cpumap.h"
#include "thread_map.h"
#include "target.h"
+#include "../../include/linux/perf_event.h"
#define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y))
#define GROUP_FD(group_fd, cpu) (*(int *)xyarray__entry(group_fd, cpu, 0))
return evsel;
}
+static const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX] = {
+ "cycles",
+ "instructions",
+ "cache-references",
+ "cache-misses",
+ "branches",
+ "branch-misses",
+ "bus-cycles",
+ "stalled-cycles-frontend",
+ "stalled-cycles-backend",
+ "ref-cycles",
+};
+
+const char *__perf_evsel__hw_name(u64 config)
+{
+ if (config < PERF_COUNT_HW_MAX && perf_evsel__hw_names[config])
+ return perf_evsel__hw_names[config];
+
+ return "unknown-hardware";
+}
+
+static int perf_evsel__hw_name(struct perf_evsel *evsel, char *bf, size_t size)
+{
+ int colon = 0;
+ struct perf_event_attr *attr = &evsel->attr;
+ int r = scnprintf(bf, size, "%s", __perf_evsel__hw_name(attr->config));
+ bool exclude_guest_default = false;
+
+#define MOD_PRINT(context, mod) do { \
+ if (!attr->exclude_##context) { \
+ if (!colon) colon = r++; \
+ r += scnprintf(bf + r, size - r, "%c", mod); \
+ } } while(0)
+
+ if (attr->exclude_kernel || attr->exclude_user || attr->exclude_hv) {
+ MOD_PRINT(kernel, 'k');
+ MOD_PRINT(user, 'u');
+ MOD_PRINT(hv, 'h');
+ exclude_guest_default = true;
+ }
+
+ if (attr->precise_ip) {
+ if (!colon)
+ colon = r++;
+ r += scnprintf(bf + r, size - r, "%.*s", attr->precise_ip, "ppp");
+ exclude_guest_default = true;
+ }
+
+ if (attr->exclude_host || attr->exclude_guest == exclude_guest_default) {
+ MOD_PRINT(host, 'H');
+ MOD_PRINT(guest, 'G');
+ }
+#undef MOD_PRINT
+ if (colon)
+ bf[colon] = ':';
+ return r;
+}
+
+int perf_evsel__name(struct perf_evsel *evsel, char *bf, size_t size)
+{
+ int ret;
+
+ switch (evsel->attr.type) {
+ case PERF_TYPE_RAW:
+ ret = scnprintf(bf, size, "raw 0x%" PRIx64, evsel->attr.config);
+ break;
+
+ case PERF_TYPE_HARDWARE:
+ ret = perf_evsel__hw_name(evsel, bf, size);
+ break;
+ default:
+ /*
+ * FIXME
+ *
+ * This is the minimal perf_evsel__name so that we can
+ * reconstruct event names taking into account event modifiers.
+ *
+ * The old event_name uses it now for raw anr hw events, so that
+ * we don't drag all the parsing stuff into the python binding.
+ *
+ * On the next devel cycle the rest of the event naming will be
+ * brought here.
+ */
+ return 0;
+ }
+
+ return ret;
+}
+
void perf_evsel__config(struct perf_evsel *evsel, struct perf_record_opts *opts,
struct perf_evsel *first)
{
struct perf_record_opts *opts,
struct perf_evsel *first);
+const char* __perf_evsel__hw_name(u64 config);
+int perf_evsel__name(struct perf_evsel *evsel, char *bf, size_t size);
+
int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
#define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE)
#define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT)
-static const char *hw_event_names[PERF_COUNT_HW_MAX] = {
- "cycles",
- "instructions",
- "cache-references",
- "cache-misses",
- "branches",
- "branch-misses",
- "bus-cycles",
- "stalled-cycles-frontend",
- "stalled-cycles-backend",
- "ref-cycles",
-};
-
static const char *sw_event_names[PERF_COUNT_SW_MAX] = {
"cpu-clock",
"task-clock",
u64 config = evsel->attr.config;
int type = evsel->attr.type;
+ if (type == PERF_TYPE_RAW || type == PERF_TYPE_HARDWARE) {
+ /*
+ * XXX minimal fix, see comment on perf_evsen__name, this static buffer
+ * will go away together with event_name in the next devel cycle.
+ */
+ static char bf[128];
+ perf_evsel__name(evsel, bf, sizeof(bf));
+ return bf;
+ }
+
if (evsel->name)
return evsel->name;
switch (type) {
case PERF_TYPE_HARDWARE:
- if (config < PERF_COUNT_HW_MAX && hw_event_names[config])
- return hw_event_names[config];
- return "unknown-hardware";
+ return __perf_evsel__hw_name(config);
case PERF_TYPE_HW_CACHE: {
u8 cache_type, cache_op, cache_result;
nt = realloc(threads, (sizeof(*threads) +
sizeof(pid_t) * total_tasks));
if (nt == NULL)
- goto out_free_threads;
+ goto out_free_namelist;
threads = nt;
- if (threads) {
- for (i = 0; i < items; i++)
- threads->map[j++] = atoi(namelist[i]->d_name);
- threads->nr = total_tasks;
- }
-
- for (i = 0; i < items; i++)
+ for (i = 0; i < items; i++) {
+ threads->map[j++] = atoi(namelist[i]->d_name);
free(namelist[i]);
+ }
+ threads->nr = total_tasks;
free(namelist);
-
- if (!threads)
- break;
}
out:
strlist__delete(slist);
return threads;
+out_free_namelist:
+ for (i = 0; i < items; i++)
+ free(namelist[i]);
+ free(namelist);
+
out_free_threads:
free(threads);
threads = NULL;
-TARGETS = breakpoints vm
+TARGETS = breakpoints kcmp mqueue vm
all:
for TARGET in $(TARGETS); do \
--- /dev/null
+uname_M := $(shell uname -m 2>/dev/null || echo not)
+ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/)
+ifeq ($(ARCH),i386)
+ ARCH := X86
+ CFLAGS := -DCONFIG_X86_32 -D__i386__
+endif
+ifeq ($(ARCH),x86_64)
+ ARCH := X86
+ CFLAGS := -DCONFIG_X86_64 -D__x86_64__
+endif
+
+CFLAGS += -I../../../../arch/x86/include/generated/
+CFLAGS += -I../../../../include/
+CFLAGS += -I../../../../usr/include/
+CFLAGS += -I../../../../arch/x86/include/
+
+all:
+ifeq ($(ARCH),X86)
+ gcc $(CFLAGS) kcmp_test.c -o run_test
+else
+ echo "Not an x86 target, can't build kcmp selftest"
+endif
+
+run-tests: all
+ ./kcmp_test
+
+clean:
+ rm -fr ./run_test
+ rm -fr ./test-file
--- /dev/null
+#define _GNU_SOURCE
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <limits.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <fcntl.h>
+
+#include <linux/unistd.h>
+#include <linux/kcmp.h>
+
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+static long sys_kcmp(int pid1, int pid2, int type, int fd1, int fd2)
+{
+ return syscall(__NR_kcmp, pid1, pid2, type, fd1, fd2);
+}
+
+int main(int argc, char **argv)
+{
+ const char kpath[] = "kcmp-test-file";
+ int pid1, pid2;
+ int fd1, fd2;
+ int status;
+
+ fd1 = open(kpath, O_RDWR | O_CREAT | O_TRUNC, 0644);
+ pid1 = getpid();
+
+ if (fd1 < 0) {
+ perror("Can't create file");
+ exit(1);
+ }
+
+ pid2 = fork();
+ if (pid2 < 0) {
+ perror("fork failed");
+ exit(1);
+ }
+
+ if (!pid2) {
+ int pid2 = getpid();
+ int ret;
+
+ fd2 = open(kpath, O_RDWR, 0644);
+ if (fd2 < 0) {
+ perror("Can't open file");
+ exit(1);
+ }
+
+ /* An example of output and arguments */
+ printf("pid1: %6d pid2: %6d FD: %2ld FILES: %2ld VM: %2ld "
+ "FS: %2ld SIGHAND: %2ld IO: %2ld SYSVSEM: %2ld "
+ "INV: %2ld\n",
+ pid1, pid2,
+ sys_kcmp(pid1, pid2, KCMP_FILE, fd1, fd2),
+ sys_kcmp(pid1, pid2, KCMP_FILES, 0, 0),
+ sys_kcmp(pid1, pid2, KCMP_VM, 0, 0),
+ sys_kcmp(pid1, pid2, KCMP_FS, 0, 0),
+ sys_kcmp(pid1, pid2, KCMP_SIGHAND, 0, 0),
+ sys_kcmp(pid1, pid2, KCMP_IO, 0, 0),
+ sys_kcmp(pid1, pid2, KCMP_SYSVSEM, 0, 0),
+
+ /* This one should fail */
+ sys_kcmp(pid1, pid2, KCMP_TYPES + 1, 0, 0));
+
+ /* This one should return same fd */
+ ret = sys_kcmp(pid1, pid2, KCMP_FILE, fd1, fd1);
+ if (ret) {
+ printf("FAIL: 0 expected but %d returned\n", ret);
+ ret = -1;
+ } else
+ printf("PASS: 0 returned as expected\n");
+
+ /* Compare with self */
+ ret = sys_kcmp(pid1, pid1, KCMP_VM, 0, 0);
+ if (ret) {
+ printf("FAIL: 0 expected but %li returned\n", ret);
+ ret = -1;
+ } else
+ printf("PASS: 0 returned as expected\n");
+
+ exit(ret);
+ }
+
+ waitpid(pid2, &status, P_ALL);
+
+ return 0;
+}
--- /dev/null
+mq_open_tests
+mq_perf_tests
--- /dev/null
+all:
+ gcc -O2 -lrt mq_open_tests.c -o mq_open_tests
+ gcc -O2 -lrt -lpthread -lpopt -o mq_perf_tests mq_perf_tests.c
+
+run_tests:
+ ./mq_open_tests /test1
+ ./mq_perf_tests
+
+clean:
+ rm -f mq_open_tests mq_perf_tests
--- /dev/null
+/*
+ * This application is Copyright 2012 Red Hat, Inc.
+ * Doug Ledford <dledford@redhat.com>
+ *
+ * mq_open_tests is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * mq_open_tests is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * For the full text of the license, see <http://www.gnu.org/licenses/>.
+ *
+ * mq_open_tests.c
+ * Tests the various situations that should either succeed or fail to
+ * open a posix message queue and then reports whether or not they
+ * did as they were supposed to.
+ *
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <limits.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <sys/stat.h>
+#include <mqueue.h>
+
+static char *usage =
+"Usage:\n"
+" %s path\n"
+"\n"
+" path Path name of the message queue to create\n"
+"\n"
+" Note: this program must be run as root in order to enable all tests\n"
+"\n";
+
+char *DEF_MSGS = "/proc/sys/fs/mqueue/msg_default";
+char *DEF_MSGSIZE = "/proc/sys/fs/mqueue/msgsize_default";
+char *MAX_MSGS = "/proc/sys/fs/mqueue/msg_max";
+char *MAX_MSGSIZE = "/proc/sys/fs/mqueue/msgsize_max";
+
+int default_settings;
+struct rlimit saved_limits, cur_limits;
+int saved_def_msgs, saved_def_msgsize, saved_max_msgs, saved_max_msgsize;
+int cur_def_msgs, cur_def_msgsize, cur_max_msgs, cur_max_msgsize;
+FILE *def_msgs, *def_msgsize, *max_msgs, *max_msgsize;
+char *queue_path;
+mqd_t queue = -1;
+
+static inline void __set(FILE *stream, int value, char *err_msg);
+void shutdown(int exit_val, char *err_cause, int line_no);
+static inline int get(FILE *stream);
+static inline void set(FILE *stream, int value);
+static inline void getr(int type, struct rlimit *rlim);
+static inline void setr(int type, struct rlimit *rlim);
+void validate_current_settings();
+static inline void test_queue(struct mq_attr *attr, struct mq_attr *result);
+static inline int test_queue_fail(struct mq_attr *attr, struct mq_attr *result);
+
+static inline void __set(FILE *stream, int value, char *err_msg)
+{
+ rewind(stream);
+ if (fprintf(stream, "%d", value) < 0)
+ perror(err_msg);
+}
+
+
+void shutdown(int exit_val, char *err_cause, int line_no)
+{
+ static int in_shutdown = 0;
+
+ /* In case we get called recursively by a set() call below */
+ if (in_shutdown++)
+ return;
+
+ seteuid(0);
+
+ if (queue != -1)
+ if (mq_close(queue))
+ perror("mq_close() during shutdown");
+ if (queue_path)
+ /*
+ * Be silent if this fails, if we cleaned up already it's
+ * expected to fail
+ */
+ mq_unlink(queue_path);
+ if (default_settings) {
+ if (saved_def_msgs)
+ __set(def_msgs, saved_def_msgs,
+ "failed to restore saved_def_msgs");
+ if (saved_def_msgsize)
+ __set(def_msgsize, saved_def_msgsize,
+ "failed to restore saved_def_msgsize");
+ }
+ if (saved_max_msgs)
+ __set(max_msgs, saved_max_msgs,
+ "failed to restore saved_max_msgs");
+ if (saved_max_msgsize)
+ __set(max_msgsize, saved_max_msgsize,
+ "failed to restore saved_max_msgsize");
+ if (exit_val)
+ error(exit_val, errno, "%s at %d", err_cause, line_no);
+ exit(0);
+}
+
+static inline int get(FILE *stream)
+{
+ int value;
+ rewind(stream);
+ if (fscanf(stream, "%d", &value) != 1)
+ shutdown(4, "Error reading /proc entry", __LINE__ - 1);
+ return value;
+}
+
+static inline void set(FILE *stream, int value)
+{
+ int new_value;
+
+ rewind(stream);
+ if (fprintf(stream, "%d", value) < 0)
+ return shutdown(5, "Failed writing to /proc file",
+ __LINE__ - 1);
+ new_value = get(stream);
+ if (new_value != value)
+ return shutdown(5, "We didn't get what we wrote to /proc back",
+ __LINE__ - 1);
+}
+
+static inline void getr(int type, struct rlimit *rlim)
+{
+ if (getrlimit(type, rlim))
+ shutdown(6, "getrlimit()", __LINE__ - 1);
+}
+
+static inline void setr(int type, struct rlimit *rlim)
+{
+ if (setrlimit(type, rlim))
+ shutdown(7, "setrlimit()", __LINE__ - 1);
+}
+
+void validate_current_settings()
+{
+ int rlim_needed;
+
+ if (cur_limits.rlim_cur < 4096) {
+ printf("Current rlimit value for POSIX message queue bytes is "
+ "unreasonably low,\nincreasing.\n\n");
+ cur_limits.rlim_cur = 8192;
+ cur_limits.rlim_max = 16384;
+ setr(RLIMIT_MSGQUEUE, &cur_limits);
+ }
+
+ if (default_settings) {
+ rlim_needed = (cur_def_msgs + 1) * (cur_def_msgsize + 1 +
+ 2 * sizeof(void *));
+ if (rlim_needed > cur_limits.rlim_cur) {
+ printf("Temporarily lowering default queue parameters "
+ "to something that will work\n"
+ "with the current rlimit values.\n\n");
+ set(def_msgs, 10);
+ cur_def_msgs = 10;
+ set(def_msgsize, 128);
+ cur_def_msgsize = 128;
+ }
+ } else {
+ rlim_needed = (cur_max_msgs + 1) * (cur_max_msgsize + 1 +
+ 2 * sizeof(void *));
+ if (rlim_needed > cur_limits.rlim_cur) {
+ printf("Temporarily lowering maximum queue parameters "
+ "to something that will work\n"
+ "with the current rlimit values in case this is "
+ "a kernel that ties the default\n"
+ "queue parameters to the maximum queue "
+ "parameters.\n\n");
+ set(max_msgs, 10);
+ cur_max_msgs = 10;
+ set(max_msgsize, 128);
+ cur_max_msgsize = 128;
+ }
+ }
+}
+
+/*
+ * test_queue - Test opening a queue, shutdown if we fail. This should
+ * only be called in situations that should never fail. We clean up
+ * after ourselves and return the queue attributes in *result.
+ */
+static inline void test_queue(struct mq_attr *attr, struct mq_attr *result)
+{
+ int flags = O_RDWR | O_EXCL | O_CREAT;
+ int perms = DEFFILEMODE;
+
+ if ((queue = mq_open(queue_path, flags, perms, attr)) == -1)
+ shutdown(1, "mq_open()", __LINE__);
+ if (mq_getattr(queue, result))
+ shutdown(1, "mq_getattr()", __LINE__);
+ if (mq_close(queue))
+ shutdown(1, "mq_close()", __LINE__);
+ queue = -1;
+ if (mq_unlink(queue_path))
+ shutdown(1, "mq_unlink()", __LINE__);
+}
+
+/*
+ * Same as test_queue above, but failure is not fatal.
+ * Returns:
+ * 0 - Failed to create a queue
+ * 1 - Created a queue, attributes in *result
+ */
+static inline int test_queue_fail(struct mq_attr *attr, struct mq_attr *result)
+{
+ int flags = O_RDWR | O_EXCL | O_CREAT;
+ int perms = DEFFILEMODE;
+
+ if ((queue = mq_open(queue_path, flags, perms, attr)) == -1)
+ return 0;
+ if (mq_getattr(queue, result))
+ shutdown(1, "mq_getattr()", __LINE__);
+ if (mq_close(queue))
+ shutdown(1, "mq_close()", __LINE__);
+ queue = -1;
+ if (mq_unlink(queue_path))
+ shutdown(1, "mq_unlink()", __LINE__);
+ return 1;
+}
+
+int main(int argc, char *argv[])
+{
+ struct mq_attr attr, result;
+
+ if (argc != 2) {
+ fprintf(stderr, "Must pass a valid queue name\n\n");
+ fprintf(stderr, usage, argv[0]);
+ exit(1);
+ }
+
+ /*
+ * Although we can create a msg queue with a non-absolute path name,
+ * unlink will fail. So, if the name doesn't start with a /, add one
+ * when we save it.
+ */
+ if (*argv[1] == '/')
+ queue_path = strdup(argv[1]);
+ else {
+ queue_path = malloc(strlen(argv[1]) + 2);
+ if (!queue_path) {
+ perror("malloc()");
+ exit(1);
+ }
+ queue_path[0] = '/';
+ queue_path[1] = 0;
+ strcat(queue_path, argv[1]);
+ }
+
+ if (getuid() != 0) {
+ fprintf(stderr, "Not running as root, but almost all tests "
+ "require root in order to modify\nsystem settings. "
+ "Exiting.\n");
+ exit(1);
+ }
+
+ /* Find out what files there are for us to make tweaks in */
+ def_msgs = fopen(DEF_MSGS, "r+");
+ def_msgsize = fopen(DEF_MSGSIZE, "r+");
+ max_msgs = fopen(MAX_MSGS, "r+");
+ max_msgsize = fopen(MAX_MSGSIZE, "r+");
+
+ if (!max_msgs)
+ shutdown(2, "Failed to open msg_max", __LINE__);
+ if (!max_msgsize)
+ shutdown(2, "Failed to open msgsize_max", __LINE__);
+ if (def_msgs || def_msgsize)
+ default_settings = 1;
+
+ /* Load up the current system values for everything we can */
+ getr(RLIMIT_MSGQUEUE, &saved_limits);
+ cur_limits = saved_limits;
+ if (default_settings) {
+ saved_def_msgs = cur_def_msgs = get(def_msgs);
+ saved_def_msgsize = cur_def_msgsize = get(def_msgsize);
+ }
+ saved_max_msgs = cur_max_msgs = get(max_msgs);
+ saved_max_msgsize = cur_max_msgsize = get(max_msgsize);
+
+ /* Tell the user our initial state */
+ printf("\nInitial system state:\n");
+ printf("\tUsing queue path:\t\t%s\n", queue_path);
+ printf("\tRLIMIT_MSGQUEUE(soft):\t\t%d\n", saved_limits.rlim_cur);
+ printf("\tRLIMIT_MSGQUEUE(hard):\t\t%d\n", saved_limits.rlim_max);
+ printf("\tMaximum Message Size:\t\t%d\n", saved_max_msgsize);
+ printf("\tMaximum Queue Size:\t\t%d\n", saved_max_msgs);
+ if (default_settings) {
+ printf("\tDefault Message Size:\t\t%d\n", saved_def_msgsize);
+ printf("\tDefault Queue Size:\t\t%d\n", saved_def_msgs);
+ } else {
+ printf("\tDefault Message Size:\t\tNot Supported\n");
+ printf("\tDefault Queue Size:\t\tNot Supported\n");
+ }
+ printf("\n");
+
+ validate_current_settings();
+
+ printf("Adjusted system state for testing:\n");
+ printf("\tRLIMIT_MSGQUEUE(soft):\t\t%d\n", cur_limits.rlim_cur);
+ printf("\tRLIMIT_MSGQUEUE(hard):\t\t%d\n", cur_limits.rlim_max);
+ printf("\tMaximum Message Size:\t\t%d\n", cur_max_msgsize);
+ printf("\tMaximum Queue Size:\t\t%d\n", cur_max_msgs);
+ if (default_settings) {
+ printf("\tDefault Message Size:\t\t%d\n", cur_def_msgsize);
+ printf("\tDefault Queue Size:\t\t%d\n", cur_def_msgs);
+ }
+
+ printf("\n\nTest series 1, behavior when no attr struct "
+ "passed to mq_open:\n");
+ if (!default_settings) {
+ test_queue(NULL, &result);
+ printf("Given sane system settings, mq_open without an attr "
+ "struct succeeds:\tPASS\n");
+ if (result.mq_maxmsg != cur_max_msgs ||
+ result.mq_msgsize != cur_max_msgsize) {
+ printf("Kernel does not support setting the default "
+ "mq attributes,\nbut also doesn't tie the "
+ "defaults to the maximums:\t\t\tPASS\n");
+ } else {
+ set(max_msgs, ++cur_max_msgs);
+ set(max_msgsize, ++cur_max_msgsize);
+ test_queue(NULL, &result);
+ if (result.mq_maxmsg == cur_max_msgs &&
+ result.mq_msgsize == cur_max_msgsize)
+ printf("Kernel does not support setting the "
+ "default mq attributes and\n"
+ "also ties system wide defaults to "
+ "the system wide maximums:\t\t"
+ "FAIL\n");
+ else
+ printf("Kernel does not support setting the "
+ "default mq attributes,\n"
+ "but also doesn't tie the defaults to "
+ "the maximums:\t\t\tPASS\n");
+ }
+ } else {
+ printf("Kernel supports setting defaults separately from "
+ "maximums:\t\tPASS\n");
+ /*
+ * While we are here, go ahead and test that the kernel
+ * properly follows the default settings
+ */
+ test_queue(NULL, &result);
+ printf("Given sane values, mq_open without an attr struct "
+ "succeeds:\t\tPASS\n");
+ if (result.mq_maxmsg != cur_def_msgs ||
+ result.mq_msgsize != cur_def_msgsize)
+ printf("Kernel supports setting defaults, but does "
+ "not actually honor them:\tFAIL\n\n");
+ else {
+ set(def_msgs, ++cur_def_msgs);
+ set(def_msgsize, ++cur_def_msgsize);
+ /* In case max was the same as the default */
+ set(max_msgs, ++cur_max_msgs);
+ set(max_msgsize, ++cur_max_msgsize);
+ test_queue(NULL, &result);
+ if (result.mq_maxmsg != cur_def_msgs ||
+ result.mq_msgsize != cur_def_msgsize)
+ printf("Kernel supports setting defaults, but "
+ "does not actually honor them:\t"
+ "FAIL\n");
+ else
+ printf("Kernel properly honors default setting "
+ "knobs:\t\t\t\tPASS\n");
+ }
+ set(def_msgs, cur_max_msgs + 1);
+ cur_def_msgs = cur_max_msgs + 1;
+ set(def_msgsize, cur_max_msgsize + 1);
+ cur_def_msgsize = cur_max_msgsize + 1;
+ if (cur_def_msgs * (cur_def_msgsize + 2 * sizeof(void *)) >=
+ cur_limits.rlim_cur) {
+ cur_limits.rlim_cur = (cur_def_msgs + 2) *
+ (cur_def_msgsize + 2 * sizeof(void *));
+ cur_limits.rlim_max = 2 * cur_limits.rlim_cur;
+ setr(RLIMIT_MSGQUEUE, &cur_limits);
+ }
+ if (test_queue_fail(NULL, &result)) {
+ if (result.mq_maxmsg == cur_max_msgs &&
+ result.mq_msgsize == cur_max_msgsize)
+ printf("Kernel properly limits default values "
+ "to lesser of default/max:\t\tPASS\n");
+ else
+ printf("Kernel does not properly set default "
+ "queue parameters when\ndefaults > "
+ "max:\t\t\t\t\t\t\t\tFAIL\n");
+ } else
+ printf("Kernel fails to open mq because defaults are "
+ "greater than maximums:\tFAIL\n");
+ set(def_msgs, --cur_def_msgs);
+ set(def_msgsize, --cur_def_msgsize);
+ cur_limits.rlim_cur = cur_limits.rlim_max = cur_def_msgs *
+ cur_def_msgsize;
+ setr(RLIMIT_MSGQUEUE, &cur_limits);
+ if (test_queue_fail(NULL, &result))
+ printf("Kernel creates queue even though defaults "
+ "would exceed\nrlimit setting:"
+ "\t\t\t\t\t\t\t\tFAIL\n");
+ else
+ printf("Kernel properly fails to create queue when "
+ "defaults would\nexceed rlimit:"
+ "\t\t\t\t\t\t\t\tPASS\n");
+ }
+
+ /*
+ * Test #2 - open with an attr struct that exceeds rlimit
+ */
+ printf("\n\nTest series 2, behavior when attr struct is "
+ "passed to mq_open:\n");
+ cur_max_msgs = 32;
+ cur_max_msgsize = cur_limits.rlim_max >> 4;
+ set(max_msgs, cur_max_msgs);
+ set(max_msgsize, cur_max_msgsize);
+ attr.mq_maxmsg = cur_max_msgs;
+ attr.mq_msgsize = cur_max_msgsize;
+ if (test_queue_fail(&attr, &result))
+ printf("Queue open in excess of rlimit max when euid = 0 "
+ "succeeded:\t\tFAIL\n");
+ else
+ printf("Queue open in excess of rlimit max when euid = 0 "
+ "failed:\t\tPASS\n");
+ attr.mq_maxmsg = cur_max_msgs + 1;
+ attr.mq_msgsize = 10;
+ if (test_queue_fail(&attr, &result))
+ printf("Queue open with mq_maxmsg > limit when euid = 0 "
+ "succeeded:\t\tPASS\n");
+ else
+ printf("Queue open with mq_maxmsg > limit when euid = 0 "
+ "failed:\t\tFAIL\n");
+ attr.mq_maxmsg = 1;
+ attr.mq_msgsize = cur_max_msgsize + 1;
+ if (test_queue_fail(&attr, &result))
+ printf("Queue open with mq_msgsize > limit when euid = 0 "
+ "succeeded:\t\tPASS\n");
+ else
+ printf("Queue open with mq_msgsize > limit when euid = 0 "
+ "failed:\t\tFAIL\n");
+ attr.mq_maxmsg = 65536;
+ attr.mq_msgsize = 65536;
+ if (test_queue_fail(&attr, &result))
+ printf("Queue open with total size > 2GB when euid = 0 "
+ "succeeded:\t\tFAIL\n");
+ else
+ printf("Queue open with total size > 2GB when euid = 0 "
+ "failed:\t\t\tPASS\n");
+ seteuid(99);
+ attr.mq_maxmsg = cur_max_msgs;
+ attr.mq_msgsize = cur_max_msgsize;
+ if (test_queue_fail(&attr, &result))
+ printf("Queue open in excess of rlimit max when euid = 99 "
+ "succeeded:\t\tFAIL\n");
+ else
+ printf("Queue open in excess of rlimit max when euid = 99 "
+ "failed:\t\tPASS\n");
+ attr.mq_maxmsg = cur_max_msgs + 1;
+ attr.mq_msgsize = 10;
+ if (test_queue_fail(&attr, &result))
+ printf("Queue open with mq_maxmsg > limit when euid = 99 "
+ "succeeded:\t\tFAIL\n");
+ else
+ printf("Queue open with mq_maxmsg > limit when euid = 99 "
+ "failed:\t\tPASS\n");
+ attr.mq_maxmsg = 1;
+ attr.mq_msgsize = cur_max_msgsize + 1;
+ if (test_queue_fail(&attr, &result))
+ printf("Queue open with mq_msgsize > limit when euid = 99 "
+ "succeeded:\t\tFAIL\n");
+ else
+ printf("Queue open with mq_msgsize > limit when euid = 99 "
+ "failed:\t\tPASS\n");
+ attr.mq_maxmsg = 65536;
+ attr.mq_msgsize = 65536;
+ if (test_queue_fail(&attr, &result))
+ printf("Queue open with total size > 2GB when euid = 99 "
+ "succeeded:\t\tFAIL\n");
+ else
+ printf("Queue open with total size > 2GB when euid = 99 "
+ "failed:\t\t\tPASS\n");
+
+ shutdown(0,"",0);
+}
--- /dev/null
+/*
+ * This application is Copyright 2012 Red Hat, Inc.
+ * Doug Ledford <dledford@redhat.com>
+ *
+ * mq_perf_tests is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * mq_perf_tests is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * For the full text of the license, see <http://www.gnu.org/licenses/>.
+ *
+ * mq_perf_tests.c
+ * Tests various types of message queue workloads, concentrating on those
+ * situations that invole large message sizes, large message queue depths,
+ * or both, and reports back useful metrics about kernel message queue
+ * performance.
+ *
+ */
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <limits.h>
+#include <errno.h>
+#include <signal.h>
+#include <pthread.h>
+#include <sched.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <sys/stat.h>
+#include <mqueue.h>
+#include <popt.h>
+
+static char *usage =
+"Usage:\n"
+" %s [-c #[,#..] -f] path\n"
+"\n"
+" -c # Skip most tests and go straight to a high queue depth test\n"
+" and then run that test continuously (useful for running at\n"
+" the same time as some other workload to see how much the\n"
+" cache thrashing caused by adding messages to a very deep\n"
+" queue impacts the performance of other programs). The number\n"
+" indicates which CPU core we should bind the process to during\n"
+" the run. If you have more than one physical CPU, then you\n"
+" will need one copy per physical CPU package, and you should\n"
+" specify the CPU cores to pin ourself to via a comma separated\n"
+" list of CPU values.\n"
+" -f Only usable with continuous mode. Pin ourself to the CPUs\n"
+" as requested, then instead of looping doing a high mq\n"
+" workload, just busy loop. This will allow us to lock up a\n"
+" single CPU just like we normally would, but without actually\n"
+" thrashing the CPU cache. This is to make it easier to get\n"
+" comparable numbers from some other workload running on the\n"
+" other CPUs. One set of numbers with # CPUs locked up running\n"
+" an mq workload, and another set of numbers with those same\n"
+" CPUs locked away from the test workload, but not doing\n"
+" anything to trash the cache like the mq workload might.\n"
+" path Path name of the message queue to create\n"
+"\n"
+" Note: this program must be run as root in order to enable all tests\n"
+"\n";
+
+char *MAX_MSGS = "/proc/sys/fs/mqueue/msg_max";
+char *MAX_MSGSIZE = "/proc/sys/fs/mqueue/msgsize_max";
+
+#define min(a, b) ((a) < (b) ? (a) : (b))
+#define MAX_CPUS 64
+char *cpu_option_string;
+int cpus_to_pin[MAX_CPUS];
+int num_cpus_to_pin;
+pthread_t cpu_threads[MAX_CPUS];
+pthread_t main_thread;
+cpu_set_t *cpu_set;
+int cpu_set_size;
+int cpus_online;
+
+#define MSG_SIZE 16
+#define TEST1_LOOPS 10000000
+#define TEST2_LOOPS 100000
+int continuous_mode;
+int continuous_mode_fake;
+
+struct rlimit saved_limits, cur_limits;
+int saved_max_msgs, saved_max_msgsize;
+int cur_max_msgs, cur_max_msgsize;
+FILE *max_msgs, *max_msgsize;
+int cur_nice;
+char *queue_path = "/mq_perf_tests";
+mqd_t queue = -1;
+struct mq_attr result;
+int mq_prio_max;
+
+const struct poptOption options[] = {
+ {
+ .longName = "continuous",
+ .shortName = 'c',
+ .argInfo = POPT_ARG_STRING,
+ .arg = &cpu_option_string,
+ .val = 'c',
+ .descrip = "Run continuous tests at a high queue depth in "
+ "order to test the effects of cache thrashing on "
+ "other tasks on the system. This test is intended "
+ "to be run on one core of each physical CPU while "
+ "some other CPU intensive task is run on all the other "
+ "cores of that same physical CPU and the other task "
+ "is timed. It is assumed that the process of adding "
+ "messages to the message queue in a tight loop will "
+ "impact that other task to some degree. Once the "
+ "tests are performed in this way, you should then "
+ "re-run the tests using fake mode in order to check "
+ "the difference in time required to perform the CPU "
+ "intensive task",
+ .argDescrip = "cpu[,cpu]",
+ },
+ {
+ .longName = "fake",
+ .shortName = 'f',
+ .argInfo = POPT_ARG_NONE,
+ .arg = &continuous_mode_fake,
+ .val = 0,
+ .descrip = "Tie up the CPUs that we would normally tie up in"
+ "continuous mode, but don't actually do any mq stuff, "
+ "just keep the CPU busy so it can't be used to process "
+ "system level tasks as this would free up resources on "
+ "the other CPU cores and skew the comparison between "
+ "the no-mqueue work and mqueue work tests",
+ .argDescrip = NULL,
+ },
+ {
+ .longName = "path",
+ .shortName = 'p',
+ .argInfo = POPT_ARG_STRING | POPT_ARGFLAG_SHOW_DEFAULT,
+ .arg = &queue_path,
+ .val = 'p',
+ .descrip = "The name of the path to use in the mqueue "
+ "filesystem for our tests",
+ .argDescrip = "pathname",
+ },
+ POPT_AUTOHELP
+ POPT_TABLEEND
+};
+
+static inline void __set(FILE *stream, int value, char *err_msg);
+void shutdown(int exit_val, char *err_cause, int line_no);
+void sig_action_SIGUSR1(int signum, siginfo_t *info, void *context);
+void sig_action(int signum, siginfo_t *info, void *context);
+static inline int get(FILE *stream);
+static inline void set(FILE *stream, int value);
+static inline int try_set(FILE *stream, int value);
+static inline void getr(int type, struct rlimit *rlim);
+static inline void setr(int type, struct rlimit *rlim);
+static inline void open_queue(struct mq_attr *attr);
+void increase_limits(void);
+
+static inline void __set(FILE *stream, int value, char *err_msg)
+{
+ rewind(stream);
+ if (fprintf(stream, "%d", value) < 0)
+ perror(err_msg);
+}
+
+
+void shutdown(int exit_val, char *err_cause, int line_no)
+{
+ static int in_shutdown = 0;
+ int errno_at_shutdown = errno;
+ int i;
+
+ /* In case we get called by multiple threads or from an sighandler */
+ if (in_shutdown++)
+ return;
+
+ for (i = 0; i < num_cpus_to_pin; i++)
+ if (cpu_threads[i]) {
+ pthread_kill(cpu_threads[i], SIGUSR1);
+ pthread_join(cpu_threads[i], NULL);
+ }
+
+ if (queue != -1)
+ if (mq_close(queue))
+ perror("mq_close() during shutdown");
+ if (queue_path)
+ /*
+ * Be silent if this fails, if we cleaned up already it's
+ * expected to fail
+ */
+ mq_unlink(queue_path);
+ if (saved_max_msgs)
+ __set(max_msgs, saved_max_msgs,
+ "failed to restore saved_max_msgs");
+ if (saved_max_msgsize)
+ __set(max_msgsize, saved_max_msgsize,
+ "failed to restore saved_max_msgsize");
+ if (exit_val)
+ error(exit_val, errno_at_shutdown, "%s at %d",
+ err_cause, line_no);
+ exit(0);
+}
+
+void sig_action_SIGUSR1(int signum, siginfo_t *info, void *context)
+{
+ if (pthread_self() != main_thread)
+ pthread_exit(0);
+ else {
+ fprintf(stderr, "Caught signal %d in SIGUSR1 handler, "
+ "exiting\n", signum);
+ shutdown(0, "", 0);
+ fprintf(stderr, "\n\nReturned from shutdown?!?!\n\n");
+ exit(0);
+ }
+}
+
+void sig_action(int signum, siginfo_t *info, void *context)
+{
+ if (pthread_self() != main_thread)
+ pthread_kill(main_thread, signum);
+ else {
+ fprintf(stderr, "Caught signal %d, exiting\n", signum);
+ shutdown(0, "", 0);
+ fprintf(stderr, "\n\nReturned from shutdown?!?!\n\n");
+ exit(0);
+ }
+}
+
+static inline int get(FILE *stream)
+{
+ int value;
+ rewind(stream);
+ if (fscanf(stream, "%d", &value) != 1)
+ shutdown(4, "Error reading /proc entry", __LINE__);
+ return value;
+}
+
+static inline void set(FILE *stream, int value)
+{
+ int new_value;
+
+ rewind(stream);
+ if (fprintf(stream, "%d", value) < 0)
+ return shutdown(5, "Failed writing to /proc file", __LINE__);
+ new_value = get(stream);
+ if (new_value != value)
+ return shutdown(5, "We didn't get what we wrote to /proc back",
+ __LINE__);
+}
+
+static inline int try_set(FILE *stream, int value)
+{
+ int new_value;
+
+ rewind(stream);
+ fprintf(stream, "%d", value);
+ new_value = get(stream);
+ return new_value == value;
+}
+
+static inline void getr(int type, struct rlimit *rlim)
+{
+ if (getrlimit(type, rlim))
+ shutdown(6, "getrlimit()", __LINE__);
+}
+
+static inline void setr(int type, struct rlimit *rlim)
+{
+ if (setrlimit(type, rlim))
+ shutdown(7, "setrlimit()", __LINE__);
+}
+
+/**
+ * open_queue - open the global queue for testing
+ * @attr - An attr struct specifying the desired queue traits
+ * @result - An attr struct that lists the actual traits the queue has
+ *
+ * This open is not allowed to fail, failure will result in an orderly
+ * shutdown of the program. The global queue_path is used to set what
+ * queue to open, the queue descriptor is saved in the global queue
+ * variable.
+ */
+static inline void open_queue(struct mq_attr *attr)
+{
+ int flags = O_RDWR | O_EXCL | O_CREAT | O_NONBLOCK;
+ int perms = DEFFILEMODE;
+
+ queue = mq_open(queue_path, flags, perms, attr);
+ if (queue == -1)
+ shutdown(1, "mq_open()", __LINE__);
+ if (mq_getattr(queue, &result))
+ shutdown(1, "mq_getattr()", __LINE__);
+ printf("\n\tQueue %s created:\n", queue_path);
+ printf("\t\tmq_flags:\t\t\t%s\n", result.mq_flags & O_NONBLOCK ?
+ "O_NONBLOCK" : "(null)");
+ printf("\t\tmq_maxmsg:\t\t\t%d\n", result.mq_maxmsg);
+ printf("\t\tmq_msgsize:\t\t\t%d\n", result.mq_msgsize);
+ printf("\t\tmq_curmsgs:\t\t\t%d\n", result.mq_curmsgs);
+}
+
+void *fake_cont_thread(void *arg)
+{
+ int i;
+
+ for (i = 0; i < num_cpus_to_pin; i++)
+ if (cpu_threads[i] == pthread_self())
+ break;
+ printf("\tStarted fake continuous mode thread %d on CPU %d\n", i,
+ cpus_to_pin[i]);
+ while (1)
+ ;
+}
+
+void *cont_thread(void *arg)
+{
+ char buff[MSG_SIZE];
+ int i, priority;
+
+ for (i = 0; i < num_cpus_to_pin; i++)
+ if (cpu_threads[i] == pthread_self())
+ break;
+ printf("\tStarted continuous mode thread %d on CPU %d\n", i,
+ cpus_to_pin[i]);
+ while (1) {
+ while (mq_send(queue, buff, sizeof(buff), 0) == 0)
+ ;
+ mq_receive(queue, buff, sizeof(buff), &priority);
+ }
+}
+
+#define drain_queue() \
+ while (mq_receive(queue, buff, MSG_SIZE, &prio_in) == MSG_SIZE)
+
+#define do_untimed_send() \
+ do { \
+ if (mq_send(queue, buff, MSG_SIZE, prio_out)) \
+ shutdown(3, "Test send failure", __LINE__); \
+ } while (0)
+
+#define do_send_recv() \
+ do { \
+ clock_gettime(clock, &start); \
+ if (mq_send(queue, buff, MSG_SIZE, prio_out)) \
+ shutdown(3, "Test send failure", __LINE__); \
+ clock_gettime(clock, &middle); \
+ if (mq_receive(queue, buff, MSG_SIZE, &prio_in) != MSG_SIZE) \
+ shutdown(3, "Test receive failure", __LINE__); \
+ clock_gettime(clock, &end); \
+ nsec = ((middle.tv_sec - start.tv_sec) * 1000000000) + \
+ (middle.tv_nsec - start.tv_nsec); \
+ send_total.tv_nsec += nsec; \
+ if (send_total.tv_nsec >= 1000000000) { \
+ send_total.tv_sec++; \
+ send_total.tv_nsec -= 1000000000; \
+ } \
+ nsec = ((end.tv_sec - middle.tv_sec) * 1000000000) + \
+ (end.tv_nsec - middle.tv_nsec); \
+ recv_total.tv_nsec += nsec; \
+ if (recv_total.tv_nsec >= 1000000000) { \
+ recv_total.tv_sec++; \
+ recv_total.tv_nsec -= 1000000000; \
+ } \
+ } while (0)
+
+struct test {
+ char *desc;
+ void (*func)(int *);
+};
+
+void const_prio(int *prio)
+{
+ return;
+}
+
+void inc_prio(int *prio)
+{
+ if (++*prio == mq_prio_max)
+ *prio = 0;
+}
+
+void dec_prio(int *prio)
+{
+ if (--*prio < 0)
+ *prio = mq_prio_max - 1;
+}
+
+void random_prio(int *prio)
+{
+ *prio = random() % mq_prio_max;
+}
+
+struct test test2[] = {
+ {"\n\tTest #2a: Time send/recv message, queue full, constant prio\n",
+ const_prio},
+ {"\n\tTest #2b: Time send/recv message, queue full, increasing prio\n",
+ inc_prio},
+ {"\n\tTest #2c: Time send/recv message, queue full, decreasing prio\n",
+ dec_prio},
+ {"\n\tTest #2d: Time send/recv message, queue full, random prio\n",
+ random_prio},
+ {NULL, NULL}
+};
+
+/**
+ * Tests to perform (all done with MSG_SIZE messages):
+ *
+ * 1) Time to add/remove message with 0 messages on queue
+ * 1a) with constant prio
+ * 2) Time to add/remove message when queue close to capacity:
+ * 2a) with constant prio
+ * 2b) with increasing prio
+ * 2c) with decreasing prio
+ * 2d) with random prio
+ * 3) Test limits of priorities honored (double check _SC_MQ_PRIO_MAX)
+ */
+void *perf_test_thread(void *arg)
+{
+ char buff[MSG_SIZE];
+ int prio_out, prio_in;
+ int i;
+ clockid_t clock;
+ pthread_t *t;
+ struct timespec res, start, middle, end, send_total, recv_total;
+ unsigned long long nsec;
+ struct test *cur_test;
+
+ t = &cpu_threads[0];
+ printf("\n\tStarted mqueue performance test thread on CPU %d\n",
+ cpus_to_pin[0]);
+ mq_prio_max = sysconf(_SC_MQ_PRIO_MAX);
+ if (mq_prio_max == -1)
+ shutdown(2, "sysconf(_SC_MQ_PRIO_MAX)", __LINE__);
+ if (pthread_getcpuclockid(cpu_threads[0], &clock) != 0)
+ shutdown(2, "pthread_getcpuclockid", __LINE__);
+
+ if (clock_getres(clock, &res))
+ shutdown(2, "clock_getres()", __LINE__);
+
+ printf("\t\tMax priorities:\t\t\t%d\n", mq_prio_max);
+ printf("\t\tClock resolution:\t\t%d nsec%s\n", res.tv_nsec,
+ res.tv_nsec > 1 ? "s" : "");
+
+
+
+ printf("\n\tTest #1: Time send/recv message, queue empty\n");
+ printf("\t\t(%d iterations)\n", TEST1_LOOPS);
+ prio_out = 0;
+ send_total.tv_sec = 0;
+ send_total.tv_nsec = 0;
+ recv_total.tv_sec = 0;
+ recv_total.tv_nsec = 0;
+ for (i = 0; i < TEST1_LOOPS; i++)
+ do_send_recv();
+ printf("\t\tSend msg:\t\t\t%d.%ds total time\n",
+ send_total.tv_sec, send_total.tv_nsec);
+ nsec = ((unsigned long long)send_total.tv_sec * 1000000000 +
+ send_total.tv_nsec) / TEST1_LOOPS;
+ printf("\t\t\t\t\t\t%d nsec/msg\n", nsec);
+ printf("\t\tRecv msg:\t\t\t%d.%ds total time\n",
+ recv_total.tv_sec, recv_total.tv_nsec);
+ nsec = ((unsigned long long)recv_total.tv_sec * 1000000000 +
+ recv_total.tv_nsec) / TEST1_LOOPS;
+ printf("\t\t\t\t\t\t%d nsec/msg\n", nsec);
+
+
+ for (cur_test = test2; cur_test->desc != NULL; cur_test++) {
+ printf(cur_test->desc);
+ printf("\t\t(%d iterations)\n", TEST2_LOOPS);
+ prio_out = 0;
+ send_total.tv_sec = 0;
+ send_total.tv_nsec = 0;
+ recv_total.tv_sec = 0;
+ recv_total.tv_nsec = 0;
+ printf("\t\tFilling queue...");
+ fflush(stdout);
+ clock_gettime(clock, &start);
+ for (i = 0; i < result.mq_maxmsg - 1; i++) {
+ do_untimed_send();
+ cur_test->func(&prio_out);
+ }
+ clock_gettime(clock, &end);
+ nsec = ((unsigned long long)(end.tv_sec - start.tv_sec) *
+ 1000000000) + (end.tv_nsec - start.tv_nsec);
+ printf("done.\t\t%lld.%llds\n", nsec / 1000000000,
+ nsec % 1000000000);
+ printf("\t\tTesting...");
+ fflush(stdout);
+ for (i = 0; i < TEST2_LOOPS; i++) {
+ do_send_recv();
+ cur_test->func(&prio_out);
+ }
+ printf("done.\n");
+ printf("\t\tSend msg:\t\t\t%d.%ds total time\n",
+ send_total.tv_sec, send_total.tv_nsec);
+ nsec = ((unsigned long long)send_total.tv_sec * 1000000000 +
+ send_total.tv_nsec) / TEST2_LOOPS;
+ printf("\t\t\t\t\t\t%d nsec/msg\n", nsec);
+ printf("\t\tRecv msg:\t\t\t%d.%ds total time\n",
+ recv_total.tv_sec, recv_total.tv_nsec);
+ nsec = ((unsigned long long)recv_total.tv_sec * 1000000000 +
+ recv_total.tv_nsec) / TEST2_LOOPS;
+ printf("\t\t\t\t\t\t%d nsec/msg\n", nsec);
+ printf("\t\tDraining queue...");
+ fflush(stdout);
+ clock_gettime(clock, &start);
+ drain_queue();
+ clock_gettime(clock, &end);
+ nsec = ((unsigned long long)(end.tv_sec - start.tv_sec) *
+ 1000000000) + (end.tv_nsec - start.tv_nsec);
+ printf("done.\t\t%lld.%llds\n", nsec / 1000000000,
+ nsec % 1000000000);
+ }
+ return 0;
+}
+
+void increase_limits(void)
+{
+ cur_limits.rlim_cur = RLIM_INFINITY;
+ cur_limits.rlim_max = RLIM_INFINITY;
+ setr(RLIMIT_MSGQUEUE, &cur_limits);
+ while (try_set(max_msgs, cur_max_msgs += 10))
+ ;
+ cur_max_msgs = get(max_msgs);
+ while (try_set(max_msgsize, cur_max_msgsize += 1024))
+ ;
+ cur_max_msgsize = get(max_msgsize);
+ if (setpriority(PRIO_PROCESS, 0, -20) != 0)
+ shutdown(2, "setpriority()", __LINE__);
+ cur_nice = -20;
+}
+
+int main(int argc, char *argv[])
+{
+ struct mq_attr attr;
+ char *option, *next_option;
+ int i, cpu;
+ struct sigaction sa;
+ poptContext popt_context;
+ char rc;
+ void *retval;
+
+ main_thread = pthread_self();
+ num_cpus_to_pin = 0;
+
+ if (sysconf(_SC_NPROCESSORS_ONLN) == -1) {
+ perror("sysconf(_SC_NPROCESSORS_ONLN)");
+ exit(1);
+ }
+ cpus_online = min(MAX_CPUS, sysconf(_SC_NPROCESSORS_ONLN));
+ cpu_set = CPU_ALLOC(cpus_online);
+ if (cpu_set == NULL) {
+ perror("CPU_ALLOC()");
+ exit(1);
+ }
+ cpu_set_size = CPU_ALLOC_SIZE(cpus_online);
+ CPU_ZERO_S(cpu_set_size, cpu_set);
+
+ popt_context = poptGetContext(NULL, argc, (const char **)argv,
+ options, 0);
+
+ while ((rc = poptGetNextOpt(popt_context)) > 0) {
+ switch (rc) {
+ case 'c':
+ continuous_mode = 1;
+ option = cpu_option_string;
+ do {
+ next_option = strchr(option, ',');
+ if (next_option)
+ *next_option = '\0';
+ cpu = atoi(option);
+ if (cpu >= cpus_online)
+ fprintf(stderr, "CPU %d exceeds "
+ "cpus online, ignoring.\n",
+ cpu);
+ else
+ cpus_to_pin[num_cpus_to_pin++] = cpu;
+ if (next_option)
+ option = ++next_option;
+ } while (next_option && num_cpus_to_pin < MAX_CPUS);
+ /* Double check that they didn't give us the same CPU
+ * more than once */
+ for (cpu = 0; cpu < num_cpus_to_pin; cpu++) {
+ if (CPU_ISSET_S(cpus_to_pin[cpu], cpu_set_size,
+ cpu_set)) {
+ fprintf(stderr, "Any given CPU may "
+ "only be given once.\n");
+ exit(1);
+ } else
+ CPU_SET_S(cpus_to_pin[cpu],
+ cpu_set_size, cpu_set);
+ }
+ break;
+ case 'p':
+ /*
+ * Although we can create a msg queue with a
+ * non-absolute path name, unlink will fail. So,
+ * if the name doesn't start with a /, add one
+ * when we save it.
+ */
+ option = queue_path;
+ if (*option != '/') {
+ queue_path = malloc(strlen(option) + 2);
+ if (!queue_path) {
+ perror("malloc()");
+ exit(1);
+ }
+ queue_path[0] = '/';
+ queue_path[1] = 0;
+ strcat(queue_path, option);
+ free(option);
+ }
+ break;
+ }
+ }
+
+ if (continuous_mode && num_cpus_to_pin == 0) {
+ fprintf(stderr, "Must pass at least one CPU to continuous "
+ "mode.\n");
+ poptPrintUsage(popt_context, stderr, 0);
+ exit(1);
+ } else if (!continuous_mode) {
+ num_cpus_to_pin = 1;
+ cpus_to_pin[0] = cpus_online - 1;
+ }
+
+ if (getuid() != 0) {
+ fprintf(stderr, "Not running as root, but almost all tests "
+ "require root in order to modify\nsystem settings. "
+ "Exiting.\n");
+ exit(1);
+ }
+
+ max_msgs = fopen(MAX_MSGS, "r+");
+ max_msgsize = fopen(MAX_MSGSIZE, "r+");
+ if (!max_msgs)
+ shutdown(2, "Failed to open msg_max", __LINE__);
+ if (!max_msgsize)
+ shutdown(2, "Failed to open msgsize_max", __LINE__);
+
+ /* Load up the current system values for everything we can */
+ getr(RLIMIT_MSGQUEUE, &saved_limits);
+ cur_limits = saved_limits;
+ saved_max_msgs = cur_max_msgs = get(max_msgs);
+ saved_max_msgsize = cur_max_msgsize = get(max_msgsize);
+ errno = 0;
+ cur_nice = getpriority(PRIO_PROCESS, 0);
+ if (errno)
+ shutdown(2, "getpriority()", __LINE__);
+
+ /* Tell the user our initial state */
+ printf("\nInitial system state:\n");
+ printf("\tUsing queue path:\t\t\t%s\n", queue_path);
+ printf("\tRLIMIT_MSGQUEUE(soft):\t\t\t%d\n", saved_limits.rlim_cur);
+ printf("\tRLIMIT_MSGQUEUE(hard):\t\t\t%d\n", saved_limits.rlim_max);
+ printf("\tMaximum Message Size:\t\t\t%d\n", saved_max_msgsize);
+ printf("\tMaximum Queue Size:\t\t\t%d\n", saved_max_msgs);
+ printf("\tNice value:\t\t\t\t%d\n", cur_nice);
+ printf("\n");
+
+ increase_limits();
+
+ printf("Adjusted system state for testing:\n");
+ if (cur_limits.rlim_cur == RLIM_INFINITY) {
+ printf("\tRLIMIT_MSGQUEUE(soft):\t\t\t(unlimited)\n");
+ printf("\tRLIMIT_MSGQUEUE(hard):\t\t\t(unlimited)\n");
+ } else {
+ printf("\tRLIMIT_MSGQUEUE(soft):\t\t\t%d\n",
+ cur_limits.rlim_cur);
+ printf("\tRLIMIT_MSGQUEUE(hard):\t\t\t%d\n",
+ cur_limits.rlim_max);
+ }
+ printf("\tMaximum Message Size:\t\t\t%d\n", cur_max_msgsize);
+ printf("\tMaximum Queue Size:\t\t\t%d\n", cur_max_msgs);
+ printf("\tNice value:\t\t\t\t%d\n", cur_nice);
+ printf("\tContinuous mode:\t\t\t(%s)\n", continuous_mode ?
+ (continuous_mode_fake ? "fake mode" : "enabled") :
+ "disabled");
+ printf("\tCPUs to pin:\t\t\t\t%d", cpus_to_pin[0]);
+ for (cpu = 1; cpu < num_cpus_to_pin; cpu++)
+ printf(",%d", cpus_to_pin[cpu]);
+ printf("\n");
+
+ sa.sa_sigaction = sig_action_SIGUSR1;
+ sigemptyset(&sa.sa_mask);
+ sigaddset(&sa.sa_mask, SIGHUP);
+ sigaddset(&sa.sa_mask, SIGINT);
+ sigaddset(&sa.sa_mask, SIGQUIT);
+ sigaddset(&sa.sa_mask, SIGTERM);
+ sa.sa_flags = SA_SIGINFO;
+ if (sigaction(SIGUSR1, &sa, NULL) == -1)
+ shutdown(1, "sigaction(SIGUSR1)", __LINE__);
+ sa.sa_sigaction = sig_action;
+ if (sigaction(SIGHUP, &sa, NULL) == -1)
+ shutdown(1, "sigaction(SIGHUP)", __LINE__);
+ if (sigaction(SIGINT, &sa, NULL) == -1)
+ shutdown(1, "sigaction(SIGINT)", __LINE__);
+ if (sigaction(SIGQUIT, &sa, NULL) == -1)
+ shutdown(1, "sigaction(SIGQUIT)", __LINE__);
+ if (sigaction(SIGTERM, &sa, NULL) == -1)
+ shutdown(1, "sigaction(SIGTERM)", __LINE__);
+
+ if (!continuous_mode_fake) {
+ attr.mq_flags = O_NONBLOCK;
+ attr.mq_maxmsg = cur_max_msgs;
+ attr.mq_msgsize = MSG_SIZE;
+ open_queue(&attr);
+ }
+ for (i = 0; i < num_cpus_to_pin; i++) {
+ pthread_attr_t thread_attr;
+ void *thread_func;
+
+ if (continuous_mode_fake)
+ thread_func = &fake_cont_thread;
+ else if (continuous_mode)
+ thread_func = &cont_thread;
+ else
+ thread_func = &perf_test_thread;
+
+ CPU_ZERO_S(cpu_set_size, cpu_set);
+ CPU_SET_S(cpus_to_pin[i], cpu_set_size, cpu_set);
+ pthread_attr_init(&thread_attr);
+ pthread_attr_setaffinity_np(&thread_attr, cpu_set_size,
+ cpu_set);
+ if (pthread_create(&cpu_threads[i], &thread_attr, thread_func,
+ NULL))
+ shutdown(1, "pthread_create()", __LINE__);
+ pthread_attr_destroy(&thread_attr);
+ }
+
+ if (!continuous_mode) {
+ pthread_join(cpu_threads[0], &retval);
+ shutdown((long)retval, "perf_test_thread()", __LINE__);
+ } else {
+ while (1)
+ sleep(1);
+ }
+ shutdown(0, "", 0);
+}
#include <sys/mount.h>
#include <sys/statfs.h>
#include "../../include/linux/magic.h"
+#include "../../include/linux/kernel-page-flags.h"
#ifndef MAX_PATH
#define KPF_BYTES 8
#define PROC_KPAGEFLAGS "/proc/kpageflags"
-/* copied from kpageflags_read() */
-#define KPF_LOCKED 0
-#define KPF_ERROR 1
-#define KPF_REFERENCED 2
-#define KPF_UPTODATE 3
-#define KPF_DIRTY 4
-#define KPF_LRU 5
-#define KPF_ACTIVE 6
-#define KPF_SLAB 7
-#define KPF_WRITEBACK 8
-#define KPF_RECLAIM 9
-#define KPF_BUDDY 10
-
-/* [11-20] new additions in 2.6.31 */
-#define KPF_MMAP 11
-#define KPF_ANON 12
-#define KPF_SWAPCACHE 13
-#define KPF_SWAPBACKED 14
-#define KPF_COMPOUND_HEAD 15
-#define KPF_COMPOUND_TAIL 16
-#define KPF_HUGE 17
-#define KPF_UNEVICTABLE 18
-#define KPF_HWPOISON 19
-#define KPF_NOPAGE 20
-#define KPF_KSM 21
-#define KPF_THP 22
-
/* [32-] kernel hacking assistances */
#define KPF_RESERVED 32
#define KPF_MLOCKED 33
{
static char buf[65];
int present;
- int i, j;
+ size_t i, j;
for (i = 0, j = 0; i < ARRAY_SIZE(page_flag_names); i++) {
present = (flags >> i) & 1;
static char *page_flag_longname(uint64_t flags)
{
static char buf[1024];
- int i, n;
+ size_t i, n;
for (i = 0, n = 0; i < ARRAY_SIZE(page_flag_names); i++) {
if (!page_flag_names[i])
static void show_summary(void)
{
- int i;
+ size_t i;
printf(" flags\tpage-count MB"
" symbolic-flags\t\t\tlong-symbolic-flags\n");
/* find the path to the mounted debugfs */
static const char *debugfs_find_mountpoint(void)
{
- const char **ptr;
+ const char *const *ptr;
char type[100];
FILE *fp;
static void debugfs_mount(void)
{
- const char **ptr;
+ const char *const *ptr;
/* see if it's already mounted */
if (debugfs_find_mountpoint())
* page frame walker
*/
-static int hash_slot(uint64_t flags)
+static size_t hash_slot(uint64_t flags)
{
- int k = HASH_KEY(flags);
- int i;
+ size_t k = HASH_KEY(flags);
+ size_t i;
/* Explicitly reserve slot 0 for flags 0: the following logic
* cannot distinguish an unoccupied slot from slot (flags==0).
{
uint64_t buf[KPAGEFLAGS_BATCH];
unsigned long batch;
- long pages;
+ unsigned long pages;
unsigned long i;
while (count) {
static void usage(void)
{
- int i, j;
+ size_t i, j;
printf(
"page-types [options]\n"
static uint64_t parse_flag_name(const char *str, int len)
{
- int i;
+ size_t i;
if (!*str || !len)
return 0;
depends on RD_BZIP2
help
Its compression ratio and speed is intermediate.
- Decompression speed is slowest among the four. The initramfs
+ Decompression speed is slowest among the choices. The initramfs
size is about 10% smaller with bzip2, in comparison to gzip.
Bzip2 uses a large amount of memory. For modern kernels you
will need at least 8MB RAM or more for booting.
bool "LZMA"
depends on RD_LZMA
help
- The most recent compression algorithm.
- Its ratio is best, decompression speed is between the other
- three. Compression is slowest. The initramfs size is about 33%
+ This algorithm's compression ratio is best.
+ Decompression speed is between the other choices.
+ Compression is slowest. The initramfs size is about 33%
smaller with LZMA in comparison to gzip.
config INITRAMFS_COMPRESSION_XZ
bool "LZO"
depends on RD_LZO
help
- Its compression ratio is the poorest among the four. The kernel
+ Its compression ratio is the poorest among the choices. The kernel
size is about 10% bigger than gzip; however its speed
(both compression and decompression) is the fastest.
projects / linux-2.6-block.git / commitdiff