F: drivers/scsi/53c700*
6LOWPAN GENERIC (BTLE/IEEE 802.15.4)
-M: Alexander Aring <alex.aring@gmail.com>
+M: Alexander Aring <aar@pengutronix.de>
M: Jukka Rissanen <jukka.rissanen@linux.intel.com>
L: linux-bluetooth@vger.kernel.org
L: linux-wpan@vger.kernel.org
S: Maintained
F: drivers/hwmon/abituguru3.c
+ACCES 104-DIO-48E GPIO DRIVER
+M: William Breathitt Gray <vilhelm.gray@gmail.com>
+L: linux-gpio@vger.kernel.org
+S: Maintained
+F: drivers/gpio/gpio-104-dio-48e.c
+
ACCES 104-IDI-48 GPIO DRIVER
M: "William Breathitt Gray" <vilhelm.gray@gmail.com>
L: linux-gpio@vger.kernel.org
F: drivers/gpu/drm/radeon/radeon_kfd.h
F: include/uapi/linux/kfd_ioctl.h
+AMD SEATTLE DEVICE TREE SUPPORT
+M: Brijesh Singh <brijeshkumar.singh@amd.com>
+M: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
+M: Tom Lendacky <thomas.lendacky@amd.com>
+S: Supported
+F: arch/arm64/boot/dts/amd/
+
AMD XGBE DRIVER
M: Tom Lendacky <thomas.lendacky@amd.com>
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/amd/xgbe/
+F: arch/arm64/boot/dts/amd/amd-seattle-xgbe*.dtsi
AMS (Apple Motion Sensor) DRIVER
M: Michael Hanselmann <linux-kernel@hansmi.ch>
S: Maintained
F: sound/aoa/
+APEX EMBEDDED SYSTEMS STX104 DAC DRIVER
+M: William Breathitt Gray <vilhelm.gray@gmail.com>
+L: linux-iio@vger.kernel.org
+S: Maintained
+F: drivers/iio/dac/stx104.c
+
APM DRIVER
M: Jiri Kosina <jikos@kernel.org>
S: Odd fixes
F: drivers/net/arcnet/
F: include/uapi/linux/if_arcnet.h
+ ARM HDLCD DRM DRIVER
+ M: Liviu Dudau <liviu.dudau@arm.com>
+ S: Supported
+ F: drivers/gpu/drm/arm/
+ F: Documentation/devicetree/bindings/display/arm,hdlcd.txt
+
ARM MFM AND FLOPPY DRIVERS
M: Ian Molton <spyro@f2s.com>
S: Maintained
F: arch/arm64/boot/dts/al/
F: drivers/*/*alpine*
+ARM/ARTPEC MACHINE SUPPORT
+M: Jesper Nilsson <jesper.nilsson@axis.com>
+M: Lars Persson <lars.persson@axis.com>
+M: Niklas Cassel <niklas.cassel@axis.com>
+S: Maintained
+L: linux-arm-kernel@axis.com
+F: arch/arm/mach-artpec
+F: arch/arm/boot/dts/artpec6*
+F: drivers/clk/clk-artpec6.c
+
ARM/ATMEL AT91RM9200, AT91SAM9 AND SAMA5 SOC SUPPORT
M: Nicolas Ferre <nicolas.ferre@atmel.com>
M: Alexandre Belloni <alexandre.belloni@free-electrons.com>
F: drivers/rtc/rtc-armada38x.c
F: arch/arm/boot/dts/armada*
F: arch/arm/boot/dts/kirkwood*
+F: arch/arm64/boot/dts/marvell/armada*
ARM/Marvell Berlin SoC support
F: arch/arm/mach-exynos*/
F: drivers/*/*s3c2410*
F: drivers/*/*/*s3c2410*
+F: drivers/soc/samsung/*
F: drivers/spi/spi-s3c*
F: sound/soc/samsung/*
F: Documentation/arm/Samsung/
S: Supported
F: drivers/tty/serial/atmel_serial.c
+ATMEL SAMA5D2 ADC DRIVER
+M: Ludovic Desroches <ludovic.desroches@atmel.com>
+L: linux-iio@vger.kernel.org
+S: Supported
+F: drivers/iio/adc/at91-sama5d2_adc.c
+
ATMEL Audio ALSA driver
M: Nicolas Ferre <nicolas.ferre@atmel.com>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
M: Simon Wunderlich <sw@simonwunderlich.de>
M: Antonio Quartulli <a@unstable.cc>
L: b.a.t.m.a.n@lists.open-mesh.org
-W: http://www.open-mesh.org/
+W: https://www.open-mesh.org/
+Q: https://patchwork.open-mesh.org/project/batman/list/
S: Maintained
F: net/batman-adv/
BROADCOM BCM63XX ARM ARCHITECTURE
M: Florian Fainelli <f.fainelli@gmail.com>
-L: linux-arm-kernel@lists.infradead.org
-T: git git://github.com/broadcom/arm-bcm63xx.git
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+L: bcm-kernel-feedback-list@broadcom.com
+T: git git://github.com/broadcom/stblinux.git
S: Maintained
F: arch/arm/mach-bcm/bcm63xx.c
F: arch/arm/include/debug/bcm63xx.S
F: arch/mips/include/asm/mach-bmips/*
F: arch/mips/kernel/*bmips*
F: arch/mips/boot/dts/brcm/bcm*.dts*
+F: drivers/irqchip/irq-bcm63*
F: drivers/irqchip/irq-bcm7*
F: drivers/irqchip/irq-brcmstb*
F: include/linux/bcm963xx_nvram.h
F: include/linux/bcm963xx_tag.h
BROADCOM TG3 GIGABIT ETHERNET DRIVER
+M: Siva Reddy Kallam <siva.kallam@broadcom.com>
M: Prashant Sreedharan <prashant@broadcom.com>
M: Michael Chan <mchan@broadcom.com>
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/broadcom/bcmsysport.*
+BROADCOM VULCAN ARM64 SOC
+M: Jayachandran C. <jchandra@broadcom.com>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+L: bcm-kernel-feedback-list@broadcom.com
+S: Maintained
+F: arch/arm64/boot/dts/broadcom/vulcan*
+
BROCADE BFA FC SCSI DRIVER
M: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
M: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>
F: include/linux/dm-*.h
F: include/uapi/linux/dm-*.h
+DEVLINK
+M: Jiri Pirko <jiri@mellanox.com>
+L: netdev@vger.kernel.org
+S: Supported
+F: net/core/devlink.c
+F: include/net/devlink.h
+F: include/uapi/linux/devlink.h
+
DIALOG SEMICONDUCTOR DRIVERS
M: Support Opensource <support.opensource@diasemi.com>
W: http://www.dialog-semiconductor.com/products
S: Maintained
F: drivers/staging/dgnc/
-DIGI EPCA PCI PRODUCTS
-M: Lidza Louina <lidza.louina@gmail.com>
-M: Daeseok Youn <daeseok.youn@gmail.com>
-L: driverdev-devel@linuxdriverproject.org
-S: Maintained
-F: drivers/staging/dgap/
-
DIOLAN U2C-12 I2C DRIVER
M: Guenter Roeck <linux@roeck-us.net>
L: linux-i2c@vger.kernel.org
F: include/drm/
F: include/uapi/drm/
- RADEON DRM DRIVERS
+ RADEON and AMDGPU DRM DRIVERS
M: Alex Deucher <alexander.deucher@amd.com>
M: Christian König <christian.koenig@amd.com>
L: dri-devel@lists.freedesktop.org
S: Supported
F: drivers/gpu/drm/radeon/
F: include/uapi/drm/radeon*
+ F: drivers/gpu/drm/amd/
+ F: include/uapi/drm/amdgpu*
DRM PANEL DRIVERS
M: Thierry Reding <thierry.reding@gmail.com>
F: include/uapi/drm/exynos*
DRM DRIVERS FOR FREESCALE DCU
- M: Jianwei Wang <jianwei.wang.chn@gmail.com>
+ M: Stefan Agner <stefan@agner.ch>
M: Alison Wang <alison.wang@freescale.com>
L: dri-devel@lists.freedesktop.org
S: Supported
S: Maintained
F: drivers/media/rc/ene_ir.*
-ENHANCED ERROR HANDLING (EEH)
-M: Gavin Shan <shangw@linux.vnet.ibm.com>
-L: linuxppc-dev@lists.ozlabs.org
-S: Supported
-F: Documentation/powerpc/eeh-pci-error-recovery.txt
-F: arch/powerpc/kernel/eeh*.c
-
EPSON S1D13XXX FRAMEBUFFER DRIVER
M: Kristoffer Ericson <kristoffer.ericson@gmail.com>
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git
S: Maintained
F: Documentation/gpio/
+F: Documentation/ABI/testing/gpio-cdev
+F: Documentation/ABI/obsolete/sysfs-gpio
F: drivers/gpio/
F: include/linux/gpio/
F: include/linux/gpio.h
F: include/asm-generic/gpio.h
+F: include/uapi/linux/gpio.h
+F: tools/gpio/
GRE DEMULTIPLEXER DRIVER
M: Dmitry Kozlov <xeb@mail.ru>
HARDWARE SPINLOCK CORE
M: Ohad Ben-Cohen <ohad@wizery.com>
+M: Bjorn Andersson <bjorn.andersson@linaro.org>
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ohad/hwspinlock.git
F: Documentation/hwspinlock.txt
S: Maintained
F: drivers/media/dvb-frontends/hd29l2*
-HEWLETT-PACKARD SMART2 RAID DRIVER
-L: iss_storagedev@hp.com
-S: Orphan
-F: Documentation/blockdev/cpqarray.txt
-F: drivers/block/cpqarray.*
-
HEWLETT-PACKARD SMART ARRAY RAID DRIVER (hpsa)
-M: Don Brace <don.brace@pmcs.com>
+M: Don Brace <don.brace@microsemi.com>
L: iss_storagedev@hp.com
-L: storagedev@pmcs.com
+L: esc.storagedev@microsemi.com
L: linux-scsi@vger.kernel.org
S: Supported
F: Documentation/scsi/hpsa.txt
F: include/uapi/linux/cciss*.h
HEWLETT-PACKARD SMART CISS RAID DRIVER (cciss)
-M: Don Brace <don.brace@pmcs.com>
+M: Don Brace <don.brace@microsemi.com>
L: iss_storagedev@hp.com
-L: storagedev@pmcs.com
+L: esc.storagedev@microsemi.com
L: linux-scsi@vger.kernel.org
S: Supported
F: Documentation/blockdev/cciss.txt
F: drivers/hid/hid-hyperv.c
F: drivers/hv/
F: drivers/input/serio/hyperv-keyboard.c
+F: drivers/pci/host/pci-hyperv.c
F: drivers/net/hyperv/
F: drivers/scsi/storvsc_drv.c
F: drivers/video/fbdev/hyperv_fb.c
F: drivers/idle/i7300_idle.c
IEEE 802.15.4 SUBSYSTEM
-M: Alexander Aring <alex.aring@gmail.com>
+M: Alexander Aring <aar@pengutronix.de>
L: linux-wpan@vger.kernel.org
-W: https://github.com/linux-wpan
-T: git git://github.com/linux-wpan/linux-wpan-next.git
+W: http://wpan.cakelab.org/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git
S: Maintained
F: net/ieee802154/
F: net/mac802154/
F: include/linux/input.h
F: include/uapi/linux/input.h
F: include/linux/input/
+F: Documentation/devicetree/bindings/input/
INPUT MULTITOUCH (MT) PROTOCOL
M: Henrik Rydberg <rydberg@bitmath.org>
F: include/uapi/linux/mei.h
F: include/linux/mei_cl_bus.h
F: drivers/misc/mei/*
+F: drivers/watchdog/mei_wdt.c
F: Documentation/misc-devices/mei/*
INTEL MIC DRIVERS (mic)
F: drivers/media/platform/rcar_jpu.c
JSM Neo PCI based serial card
-M: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
+M: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com>
L: linux-serial@vger.kernel.org
S: Maintained
F: drivers/tty/serial/jsm/
LIVE PATCHING
M: Josh Poimboeuf <jpoimboe@redhat.com>
-M: Seth Jennings <sjenning@redhat.com>
+M: Jessica Yu <jeyu@redhat.com>
M: Jiri Kosina <jikos@kernel.org>
-M: Vojtech Pavlik <vojtech@suse.com>
+M: Miroslav Benes <mbenes@suse.cz>
+R: Petr Mladek <pmladek@suse.com>
S: Maintained
F: kernel/livepatch/
F: include/linux/livepatch.h
L: live-patching@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching.git
+LINUX KERNEL DUMP TEST MODULE (LKDTM)
+M: Kees Cook <keescook@chromium.org>
+S: Maintained
+F: drivers/misc/lkdtm.c
+
LLC (802.2)
M: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
S: Maintained
F: arch/arm/mach-lpc32xx/
LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI)
-M: Nagalakshmi Nandigama <nagalakshmi.nandigama@avagotech.com>
-M: Praveen Krishnamoorthy <praveen.krishnamoorthy@avagotech.com>
-M: Sreekanth Reddy <sreekanth.reddy@avagotech.com>
-M: Abhijit Mahajan <abhijit.mahajan@avagotech.com>
-L: MPT-FusionLinux.pdl@avagotech.com
+M: Sathya Prakash <sathya.prakash@broadcom.com>
+M: Chaitra P B <chaitra.basappa@broadcom.com>
+M: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
+L: MPT-FusionLinux.pdl@broadcom.com
L: linux-scsi@vger.kernel.org
-W: http://www.lsilogic.com/support
+W: http://www.avagotech.com/support/
S: Supported
F: drivers/message/fusion/
F: drivers/scsi/mpt2sas/
M: Javier Martinez Canillas <javier@osg.samsung.com>
L: linux-kernel@vger.kernel.org
S: Supported
-F: drivers/*/*max77802.c
+F: drivers/*/*max77802*.c
F: Documentation/devicetree/bindings/*/*max77802.txt
F: include/dt-bindings/*/*max77802.h
L: linux-kernel@vger.kernel.org
S: Supported
F: drivers/*/max14577.c
-F: drivers/*/max77686.c
+F: drivers/*/max77686*.c
F: drivers/*/max77693.c
F: drivers/extcon/extcon-max14577.c
F: drivers/extcon/extcon-max77693.c
F: include/uapi/linux/ivtv*
F: include/uapi/linux/uvcvideo.h
+MEDIATEK ETHERNET DRIVER
+M: Felix Fietkau <nbd@openwrt.org>
+M: John Crispin <blogic@openwrt.org>
+L: netdev@vger.kernel.org
+S: Maintained
+F: drivers/net/ethernet/mediatek/
+
MEDIATEK MT7601U WIRELESS LAN DRIVER
M: Jakub Kicinski <kubakici@wp.pl>
L: linux-wireless@vger.kernel.org
W: https://linuxtv.org
W: http://palosaari.fi/linux/
Q: http://patchwork.linuxtv.org/project/linux-media/list/
-T: git git://linuxtv.org/anttip/media_tree.git
S: Maintained
-F: drivers/staging/media/mn88473/
-F: drivers/media/dvb-frontends/mn88473.h
+F: drivers/media/dvb-frontends/mn88473*
MODULE SUPPORT
M: Rusty Russell <rusty@rustcorp.com.au>
S: Supported
F: drivers/net/ethernet/myricom/myri10ge/
+NAND FLASH SUBSYSTEM
+M: Boris Brezillon <boris.brezillon@free-electrons.com>
+R: Richard Weinberger <richard@nod.at>
+L: linux-mtd@lists.infradead.org
+W: http://www.linux-mtd.infradead.org/
+Q: http://patchwork.ozlabs.org/project/linux-mtd/list/
+T: git git://github.com/linux-nand/linux.git
+S: Maintained
+F: drivers/mtd/nand/
+F: include/linux/mtd/nand*.h
+
NATSEMI ETHERNET DRIVER (DP8381x)
S: Orphan
F: drivers/net/ethernet/natsemi/natsemi.c
NETRONOME ETHERNET DRIVERS
M: Jakub Kicinski <jakub.kicinski@netronome.com>
-M: Rolf Neugebauer <rolf.neugebauer@netronome.com>
L: oss-drivers@netronome.com
S: Maintained
F: drivers/net/ethernet/netronome/
F: include/net/nfc/
F: include/uapi/linux/nfc.h
F: drivers/nfc/
-F: include/linux/platform_data/microread.h
F: include/linux/platform_data/nfcmrvl.h
F: include/linux/platform_data/nxp-nci.h
F: include/linux/platform_data/pn544.h
S: Maintained
F: sound/soc/codecs/tfa9879*
+OBJTOOL
+M: Josh Poimboeuf <jpoimboe@redhat.com>
+S: Supported
+F: tools/objtool/
+
OMAP SUPPORT
M: Tony Lindgren <tony@atomide.com>
L: linux-omap@vger.kernel.org
F: arch/arm/*omap*/*clock*
OMAP POWER MANAGEMENT SUPPORT
-M: Kevin Hilman <khilman@deeprootsystems.com>
+M: Kevin Hilman <khilman@kernel.org>
L: linux-omap@vger.kernel.org
S: Maintained
F: arch/arm/*omap*/*pm*
OMAP GPIO DRIVER
M: Grygorii Strashko <grygorii.strashko@ti.com>
M: Santosh Shilimkar <ssantosh@kernel.org>
-M: Kevin Hilman <khilman@deeprootsystems.com>
+M: Kevin Hilman <khilman@kernel.org>
L: linux-omap@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/gpio/gpio-omap.txt
F: Documentation/mn10300/
F: arch/mn10300/
+PARALLEL LCD/KEYPAD PANEL DRIVER
+M: Willy Tarreau <willy@haproxy.com>
+M: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
+S: Odd Fixes
+F: Documentation/misc-devices/lcd-panel-cgram.txt
+F: drivers/misc/panel.c
+
PARALLEL PORT SUBSYSTEM
M: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
M: Sudip Mukherjee <sudip@vectorindia.org>
S: Supported
F: Documentation/PCI/pci-error-recovery.txt
+PCI ENHANCED ERROR HANDLING (EEH) FOR POWERPC
+M: Russell Currey <ruscur@russell.cc>
+L: linuxppc-dev@lists.ozlabs.org
+S: Supported
+F: Documentation/powerpc/eeh-pci-error-recovery.txt
+F: arch/powerpc/kernel/eeh*.c
+F: arch/powerpc/platforms/*/eeh*.c
+F: arch/powerpc/include/*/eeh*.h
+
PCI SUBSYSTEM
M: Bjorn Helgaas <bhelgaas@google.com>
L: linux-pci@vger.kernel.org
S: Maintained
F: drivers/pci/host/*designware*
+PCI DRIVER FOR SYNOPSYS PROTOTYPING DEVICE
+M: Joao Pinto <jpinto@synopsys.com>
+L: linux-pci@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/pci/designware-pcie.txt
+F: drivers/pci/host/pcie-designware-plat.c
+
PCI DRIVER FOR GENERIC OF HOSTS
M: Will Deacon <will.deacon@arm.com>
L: linux-pci@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: Documentation/devicetree/bindings/pci/host-generic-pci.txt
+F: drivers/pci/host/pci-host-common.c
F: drivers/pci/host/pci-host-generic.c
PCI DRIVER FOR INTEL VOLUME MANAGEMENT DEVICE (VMD)
S: Maintained
F: drivers/pci/host/*qcom*
+PCIE DRIVER FOR CAVIUM THUNDERX
+M: David Daney <david.daney@cavium.com>
+L: linux-pci@vger.kernel.org
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S: Supported
+F: Documentation/devicetree/bindings/pci/pci-thunder-*
+F: drivers/pci/host/pci-thunder-*
+
PCMCIA SUBSYSTEM
P: Linux PCMCIA Team
L: linux-pcmcia@lists.infradead.org
PER-CPU MEMORY ALLOCATOR
M: Tejun Heo <tj@kernel.org>
-M: Christoph Lameter <cl@linux-foundation.org>
+M: Christoph Lameter <cl@linux.com>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu.git
S: Maintained
F: include/linux/percpu*.h
M: Peter Zijlstra <peterz@infradead.org>
M: Ingo Molnar <mingo@redhat.com>
M: Arnaldo Carvalho de Melo <acme@kernel.org>
+R: Alexander Shishkin <alexander.shishkin@linux.intel.com>
L: linux-kernel@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf/core
S: Supported
F: drivers/net/ethernet/rdc/r6040.c
RDS - RELIABLE DATAGRAM SOCKETS
-M: Chien Yen <chien.yen@oracle.com>
+M: Santosh Shilimkar <santosh.shilimkar@oracle.com>
+L: netdev@vger.kernel.org
+L: linux-rdma@vger.kernel.org
L: rds-devel@oss.oracle.com (moderated for non-subscribers)
+W: https://oss.oracle.com/projects/rds/
S: Supported
F: net/rds/
+F: Documentation/networking/rds.txt
READ-COPY UPDATE (RCU)
M: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
REMOTE PROCESSOR (REMOTEPROC) SUBSYSTEM
M: Ohad Ben-Cohen <ohad@wizery.com>
+M: Bjorn Andersson <bjorn.andersson@linaro.org>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc.git
S: Maintained
F: drivers/remoteproc/
REMOTE PROCESSOR MESSAGING (RPMSG) SUBSYSTEM
M: Ohad Ben-Cohen <ohad@wizery.com>
+M: Bjorn Andersson <bjorn.andersson@linaro.org>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ohad/rpmsg.git
S: Maintained
F: drivers/rpmsg/
SAMSUNG S3FWRN5 NFC DRIVER
M: Robert Baldyga <r.baldyga@samsung.com>
+M: Krzysztof Opasiak <k.opasiak@samsung.com>
L: linux-nfc@lists.01.org (moderated for non-subscribers)
S: Supported
F: drivers/nfc/s3fwrn5
F: include/scsi/sg.h
SCSI SUBSYSTEM
-M: "James E.J. Bottomley" <JBottomley@odin.com>
+M: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git
M: "Martin K. Petersen" <martin.petersen@oracle.com>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git
TI DAVINCI MACHINE SUPPORT
M: Sekhar Nori <nsekhar@ti.com>
-M: Kevin Hilman <khilman@deeprootsystems.com>
+M: Kevin Hilman <khilman@kernel.org>
T: git git://gitorious.org/linux-davinci/linux-davinci.git
Q: http://patchwork.kernel.org/project/linux-davinci/list/
S: Supported
S: Maintained
F: drivers/staging/nvec/
-STAGING - OLPC SECONDARY DISPLAY CONTROLLER (DCON)
-M: Jens Frederich <jfrederich@gmail.com>
-M: Daniel Drake <dsd@laptop.org>
-M: Jon Nettleton <jon.nettleton@gmail.com>
-W: http://wiki.laptop.org/go/DCON
-S: Maintained
-F: drivers/staging/olpc_dcon/
-
-STAGING - PARALLEL LCD/KEYPAD PANEL DRIVER
-M: Willy Tarreau <willy@meta-x.org>
-S: Odd Fixes
-F: drivers/staging/panel/
-
STAGING - REALTEK RTL8712U DRIVERS
M: Larry Finger <Larry.Finger@lwfinger.net>
M: Florian Schilhabel <florian.c.schilhabel@googlemail.com>.
R: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
W: http://tpmdd.sourceforge.net
L: tpmdd-devel@lists.sourceforge.net (moderated for non-subscribers)
-Q: git git://github.com/PeterHuewe/linux-tpmdd.git
-T: git https://github.com/PeterHuewe/linux-tpmdd
+Q: https://patchwork.kernel.org/project/tpmdd-devel/list/
+T: git git://git.infradead.org/users/jjs/linux-tpmdd.git
S: Maintained
F: drivers/char/tpm/
F: include/uapi/linux/cdrom.h
UNISYS S-PAR DRIVERS
-M: Benjamin Romer <benjamin.romer@unisys.com>
M: David Kershner <david.kershner@unisys.com>
L: sparmaintainer@unisys.com (Unisys internal)
S: Supported
F: include/uapi/mtd/ubi-user.h
USB ACM DRIVER
-M: Oliver Neukum <oliver@neukum.org>
+M: Oliver Neukum <oneukum@suse.com>
L: linux-usb@vger.kernel.org
S: Maintained
F: Documentation/usb/acm.txt
F: drivers/usb/host/isp116x*
F: include/linux/usb/isp116x.h
+USB LAN78XX ETHERNET DRIVER
+M: Woojung Huh <woojung.huh@microchip.com>
+M: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>
+L: netdev@vger.kernel.org
+S: Maintained
+F: drivers/net/usb/lan78xx.*
+
USB MASS STORAGE DRIVER
M: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
L: linux-usb@vger.kernel.org
M: Shuah Khan <shuah.kh@samsung.com>
L: linux-usb@vger.kernel.org
S: Maintained
+F: Documentation/usb/usbip_protocol.txt
F: drivers/usb/usbip/
F: tools/usb/usbip/
S: Maintained
F: drivers/media/rc/winbond-cir.c
+WINSYSTEMS EBC-C384 WATCHDOG DRIVER
+M: William Breathitt Gray <vilhelm.gray@gmail.com>
+L: linux-watchdog@vger.kernel.org
+S: Maintained
+F: drivers/watchdog/ebc-c384_wdt.c
+
+WINSYSTEMS WS16C48 GPIO DRIVER
+M: William Breathitt Gray <vilhelm.gray@gmail.com>
+L: linux-gpio@vger.kernel.org
+S: Maintained
+F: drivers/gpio/gpio-ws16c48.c
+
WIMAX STACK
M: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
M: linux-wimax@intel.com
static int amdgpu_ttm_global_init(struct amdgpu_device *adev)
{
struct drm_global_reference *global_ref;
+ struct amdgpu_ring *ring;
+ struct amd_sched_rq *rq;
int r;
adev->mman.mem_global_referenced = false;
return r;
}
+ ring = adev->mman.buffer_funcs_ring;
+ rq = &ring->sched.sched_rq[AMD_SCHED_PRIORITY_KERNEL];
+ r = amd_sched_entity_init(&ring->sched, &adev->mman.entity,
+ rq, amdgpu_sched_jobs);
+ if (r != 0) {
+ DRM_ERROR("Failed setting up TTM BO move run queue.\n");
+ drm_global_item_unref(&adev->mman.mem_global_ref);
+ drm_global_item_unref(&adev->mman.bo_global_ref.ref);
+ return r;
+ }
+
adev->mman.mem_global_referenced = true;
+
return 0;
}
static void amdgpu_ttm_global_fini(struct amdgpu_device *adev)
{
if (adev->mman.mem_global_referenced) {
+ amd_sched_entity_fini(adev->mman.entity.sched,
+ &adev->mman.entity);
drm_global_item_unref(&adev->mman.bo_global_ref.ref);
drm_global_item_unref(&adev->mman.mem_global_ref);
adev->mman.mem_global_referenced = false;
/*
* TTM backend functions.
*/
+ struct amdgpu_ttm_gup_task_list {
+ struct list_head list;
+ struct task_struct *task;
+ };
+
struct amdgpu_ttm_tt {
- struct ttm_dma_tt ttm;
- struct amdgpu_device *adev;
- u64 offset;
- uint64_t userptr;
- struct mm_struct *usermm;
- uint32_t userflags;
+ struct ttm_dma_tt ttm;
+ struct amdgpu_device *adev;
+ u64 offset;
+ uint64_t userptr;
+ struct mm_struct *usermm;
+ uint32_t userflags;
+ spinlock_t guptasklock;
+ struct list_head guptasks;
+ atomic_t mmu_invalidations;
};
- /* prepare the sg table with the user pages */
- static int amdgpu_ttm_tt_pin_userptr(struct ttm_tt *ttm)
+ int amdgpu_ttm_tt_get_user_pages(struct ttm_tt *ttm, struct page **pages)
{
- struct amdgpu_device *adev = amdgpu_get_adev(ttm->bdev);
struct amdgpu_ttm_tt *gtt = (void *)ttm;
- unsigned pinned = 0, nents;
- int r;
-
int write = !(gtt->userflags & AMDGPU_GEM_USERPTR_READONLY);
- enum dma_data_direction direction = write ?
- DMA_BIDIRECTIONAL : DMA_TO_DEVICE;
-
- if (current->mm != gtt->usermm)
- return -EPERM;
+ unsigned pinned = 0;
+ int r;
if (gtt->userflags & AMDGPU_GEM_USERPTR_ANONONLY) {
- /* check that we only pin down anonymous memory
+ /* check that we only use anonymous memory
to prevent problems with writeback */
unsigned long end = gtt->userptr + ttm->num_pages * PAGE_SIZE;
struct vm_area_struct *vma;
do {
unsigned num_pages = ttm->num_pages - pinned;
uint64_t userptr = gtt->userptr + pinned * PAGE_SIZE;
- struct page **pages = ttm->pages + pinned;
+ struct page **p = pages + pinned;
+ struct amdgpu_ttm_gup_task_list guptask;
+
+ guptask.task = current;
+ spin_lock(>t->guptasklock);
+ list_add(&guptask.list, >t->guptasks);
+ spin_unlock(>t->guptasklock);
+
- r = get_user_pages(current, current->mm, userptr, num_pages,
- write, 0, p, NULL);
++ r = get_user_pages(userptr, num_pages, write, 0, p, NULL);
+
+ spin_lock(>t->guptasklock);
+ list_del(&guptask.list);
+ spin_unlock(>t->guptasklock);
- r = get_user_pages(userptr, num_pages, write, 0, pages, NULL);
if (r < 0)
goto release_pages;
} while (pinned < ttm->num_pages);
+ return 0;
+
+ release_pages:
+ release_pages(pages, pinned, 0);
+ return r;
+ }
+
+ /* prepare the sg table with the user pages */
+ static int amdgpu_ttm_tt_pin_userptr(struct ttm_tt *ttm)
+ {
+ struct amdgpu_device *adev = amdgpu_get_adev(ttm->bdev);
+ struct amdgpu_ttm_tt *gtt = (void *)ttm;
+ unsigned nents;
+ int r;
+
+ int write = !(gtt->userflags & AMDGPU_GEM_USERPTR_READONLY);
+ enum dma_data_direction direction = write ?
+ DMA_BIDIRECTIONAL : DMA_TO_DEVICE;
+
r = sg_alloc_table_from_pages(ttm->sg, ttm->pages, ttm->num_pages, 0,
ttm->num_pages << PAGE_SHIFT,
GFP_KERNEL);
release_sg:
kfree(ttm->sg);
-
- release_pages:
- release_pages(ttm->pages, pinned, 0);
return r;
}
gtt->userptr = addr;
gtt->usermm = current->mm;
gtt->userflags = flags;
+ spin_lock_init(>t->guptasklock);
+ INIT_LIST_HEAD(>t->guptasks);
+ atomic_set(>t->mmu_invalidations, 0);
+
return 0;
}
- bool amdgpu_ttm_tt_has_userptr(struct ttm_tt *ttm)
+ struct mm_struct *amdgpu_ttm_tt_get_usermm(struct ttm_tt *ttm)
{
struct amdgpu_ttm_tt *gtt = (void *)ttm;
if (gtt == NULL)
- return false;
+ return NULL;
- return !!gtt->userptr;
+ return gtt->usermm;
}
bool amdgpu_ttm_tt_affect_userptr(struct ttm_tt *ttm, unsigned long start,
unsigned long end)
{
struct amdgpu_ttm_tt *gtt = (void *)ttm;
+ struct amdgpu_ttm_gup_task_list *entry;
unsigned long size;
- if (gtt == NULL)
- return false;
-
- if (gtt->ttm.ttm.state != tt_bound || !gtt->userptr)
+ if (gtt == NULL || !gtt->userptr)
return false;
size = (unsigned long)gtt->ttm.ttm.num_pages * PAGE_SIZE;
if (gtt->userptr > end || gtt->userptr + size <= start)
return false;
+ spin_lock(>t->guptasklock);
+ list_for_each_entry(entry, >t->guptasks, list) {
+ if (entry->task == current) {
+ spin_unlock(>t->guptasklock);
+ return false;
+ }
+ }
+ spin_unlock(>t->guptasklock);
+
+ atomic_inc(>t->mmu_invalidations);
+
return true;
}
+ bool amdgpu_ttm_tt_userptr_invalidated(struct ttm_tt *ttm,
+ int *last_invalidated)
+ {
+ struct amdgpu_ttm_tt *gtt = (void *)ttm;
+ int prev_invalidated = *last_invalidated;
+
+ *last_invalidated = atomic_read(>t->mmu_invalidations);
+ return prev_invalidated != *last_invalidated;
+ }
+
bool amdgpu_ttm_tt_is_readonly(struct ttm_tt *ttm)
{
struct amdgpu_ttm_tt *gtt = (void *)ttm;
struct fence **fence)
{
struct amdgpu_device *adev = ring->adev;
+ struct amdgpu_job *job;
+
uint32_t max_bytes;
unsigned num_loops, num_dw;
- struct amdgpu_ib *ib;
unsigned i;
int r;
while (num_dw & 0x7)
num_dw++;
- ib = kzalloc(sizeof(struct amdgpu_ib), GFP_KERNEL);
- if (!ib)
- return -ENOMEM;
-
- r = amdgpu_ib_get(ring, NULL, num_dw * 4, ib);
- if (r) {
- kfree(ib);
+ r = amdgpu_job_alloc_with_ib(adev, num_dw * 4, &job);
+ if (r)
return r;
- }
-
- ib->length_dw = 0;
if (resv) {
- r = amdgpu_sync_resv(adev, &ib->sync, resv,
+ r = amdgpu_sync_resv(adev, &job->sync, resv,
AMDGPU_FENCE_OWNER_UNDEFINED);
if (r) {
DRM_ERROR("sync failed (%d).\n", r);
for (i = 0; i < num_loops; i++) {
uint32_t cur_size_in_bytes = min(byte_count, max_bytes);
- amdgpu_emit_copy_buffer(adev, ib, src_offset, dst_offset,
- cur_size_in_bytes);
+ amdgpu_emit_copy_buffer(adev, &job->ibs[0], src_offset,
+ dst_offset, cur_size_in_bytes);
src_offset += cur_size_in_bytes;
dst_offset += cur_size_in_bytes;
byte_count -= cur_size_in_bytes;
}
- amdgpu_vm_pad_ib(adev, ib);
- WARN_ON(ib->length_dw > num_dw);
- r = amdgpu_sched_ib_submit_kernel_helper(adev, ring, ib, 1,
- &amdgpu_vm_free_job,
- AMDGPU_FENCE_OWNER_UNDEFINED,
- fence);
+ amdgpu_ring_pad_ib(ring, &job->ibs[0]);
+ WARN_ON(job->ibs[0].length_dw > num_dw);
+ r = amdgpu_job_submit(job, ring, &adev->mman.entity,
+ AMDGPU_FENCE_OWNER_UNDEFINED, fence);
if (r)
goto error_free;
- if (!amdgpu_enable_scheduler) {
- amdgpu_ib_free(adev, ib);
- kfree(ib);
- }
return 0;
+
error_free:
- amdgpu_ib_free(adev, ib);
- kfree(ib);
+ amdgpu_job_free(job);
return r;
}
return NULL;
}
- int etnaviv_gem_get_iova(struct etnaviv_gpu *gpu,
- struct drm_gem_object *obj, u32 *iova)
+ void etnaviv_gem_mapping_reference(struct etnaviv_vram_mapping *mapping)
+ {
+ struct etnaviv_gem_object *etnaviv_obj = mapping->object;
+
+ drm_gem_object_reference(&etnaviv_obj->base);
+
+ mutex_lock(&etnaviv_obj->lock);
+ WARN_ON(mapping->use == 0);
+ mapping->use += 1;
+ mutex_unlock(&etnaviv_obj->lock);
+ }
+
+ void etnaviv_gem_mapping_unreference(struct etnaviv_vram_mapping *mapping)
+ {
+ struct etnaviv_gem_object *etnaviv_obj = mapping->object;
+
+ mutex_lock(&etnaviv_obj->lock);
+ WARN_ON(mapping->use == 0);
+ mapping->use -= 1;
+ mutex_unlock(&etnaviv_obj->lock);
+
+ drm_gem_object_unreference_unlocked(&etnaviv_obj->base);
+ }
+
+ struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
+ struct drm_gem_object *obj, struct etnaviv_gpu *gpu)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
struct etnaviv_vram_mapping *mapping;
out:
mutex_unlock(&etnaviv_obj->lock);
- if (!ret) {
- /* Take a reference on the object */
- drm_gem_object_reference(obj);
- *iova = mapping->iova;
- }
-
- return ret;
- }
-
- void etnaviv_gem_put_iova(struct etnaviv_gpu *gpu, struct drm_gem_object *obj)
- {
- struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
- struct etnaviv_vram_mapping *mapping;
-
- mutex_lock(&etnaviv_obj->lock);
- mapping = etnaviv_gem_get_vram_mapping(etnaviv_obj, gpu->mmu);
-
- WARN_ON(mapping->use == 0);
- mapping->use -= 1;
- mutex_unlock(&etnaviv_obj->lock);
+ if (ret)
+ return ERR_PTR(ret);
- drm_gem_object_unreference_unlocked(obj);
+ /* Take a reference on the object */
+ drm_gem_object_reference(obj);
+ return mapping;
}
void *etnaviv_gem_vmap(struct drm_gem_object *obj)
down_read(&mm->mmap_sem);
while (pinned < npages) {
- ret = get_user_pages(task, mm, ptr, npages - pinned,
- !etnaviv_obj->userptr.ro, 0,
- pvec + pinned, NULL);
+ ret = get_user_pages_remote(task, mm, ptr, npages - pinned,
+ !etnaviv_obj->userptr.ro, 0,
+ pvec + pinned, NULL);
if (ret < 0)
break;
/* Now program the hardware */
mutex_lock(&gpu->lock);
etnaviv_gpu_hw_init(gpu);
+ gpu->exec_state = -1;
mutex_unlock(&gpu->lock);
pm_runtime_mark_last_busy(gpu->dev);
gpu->event[i].fence = NULL;
gpu->event[i].used = false;
complete(&gpu->event_free);
- /*
- * Decrement the PM count for each stuck event. This is safe
- * even in atomic context as we use ASYNC RPM here.
- */
- pm_runtime_put_autosuspend(gpu->dev);
}
spin_unlock_irqrestore(&gpu->event_spinlock, flags);
gpu->completed_fence = gpu->active_fence;
etnaviv_gpu_hw_init(gpu);
gpu->switch_context = true;
+ gpu->exec_state = -1;
mutex_unlock(&gpu->lock);
pm_runtime_mark_last_busy(gpu->dev);
size_t nr_bos)
{
struct etnaviv_cmdbuf *cmdbuf;
- size_t sz = size_vstruct(nr_bos, sizeof(cmdbuf->bo[0]),
+ size_t sz = size_vstruct(nr_bos, sizeof(cmdbuf->bo_map[0]),
sizeof(*cmdbuf));
cmdbuf = kzalloc(sz, GFP_KERNEL);
if (!cmdbuf)
return NULL;
- cmdbuf->vaddr = dma_alloc_writecombine(gpu->dev, size, &cmdbuf->paddr,
- GFP_KERNEL);
+ cmdbuf->vaddr = dma_alloc_wc(gpu->dev, size, &cmdbuf->paddr,
+ GFP_KERNEL);
if (!cmdbuf->vaddr) {
kfree(cmdbuf);
return NULL;
void etnaviv_gpu_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf)
{
- dma_free_writecombine(cmdbuf->gpu->dev, cmdbuf->size,
- cmdbuf->vaddr, cmdbuf->paddr);
+ dma_free_wc(cmdbuf->gpu->dev, cmdbuf->size, cmdbuf->vaddr,
+ cmdbuf->paddr);
kfree(cmdbuf);
}
fence_put(cmdbuf->fence);
for (i = 0; i < cmdbuf->nr_bos; i++) {
- struct etnaviv_gem_object *etnaviv_obj = cmdbuf->bo[i];
+ struct etnaviv_vram_mapping *mapping = cmdbuf->bo_map[i];
+ struct etnaviv_gem_object *etnaviv_obj = mapping->object;
atomic_dec(&etnaviv_obj->gpu_active);
/* drop the refcount taken in etnaviv_gpu_submit */
- etnaviv_gem_put_iova(gpu, &etnaviv_obj->base);
+ etnaviv_gem_mapping_unreference(mapping);
}
etnaviv_gpu_cmdbuf_free(cmdbuf);
+ /*
+ * We need to balance the runtime PM count caused by
+ * each submission. Upon submission, we increment
+ * the runtime PM counter, and allocate one event.
+ * So here, we put the runtime PM count for each
+ * completed event.
+ */
+ pm_runtime_put_autosuspend(gpu->dev);
}
gpu->retired_fence = fence;
for (i = 0; i < submit->nr_bos; i++) {
struct etnaviv_gem_object *etnaviv_obj = submit->bos[i].obj;
- u32 iova;
- /* Each cmdbuf takes a refcount on the iova */
- etnaviv_gem_get_iova(gpu, &etnaviv_obj->base, &iova);
- cmdbuf->bo[i] = etnaviv_obj;
+ /* Each cmdbuf takes a refcount on the mapping */
+ etnaviv_gem_mapping_reference(submit->bos[i].mapping);
+ cmdbuf->bo_map[i] = submit->bos[i].mapping;
atomic_inc(&etnaviv_obj->gpu_active);
if (submit->bos[i].flags & ETNA_SUBMIT_BO_WRITE)
gpu->completed_fence = fence->seqno;
event_free(gpu, event);
-
- /*
- * We need to balance the runtime PM count caused by
- * each submission. Upon submission, we increment
- * the runtime PM counter, and allocate one event.
- * So here, we put the runtime PM count for each
- * completed event.
- */
- pm_runtime_put_autosuspend(gpu->dev);
}
/* Retire the buffer objects in a work */
etnaviv_gpu_hw_init(gpu);
gpu->switch_context = true;
+ gpu->exec_state = -1;
mutex_unlock(&gpu->lock);
{
struct device *dev = &pdev->dev;
struct etnaviv_gpu *gpu;
+ u32 dma_mask;
int err = 0;
gpu = devm_kzalloc(dev, sizeof(*gpu), GFP_KERNEL);
mutex_init(&gpu->lock);
/*
- * Set the GPU base address to the start of physical memory. This
- * ensures that if we have up to 2GB, the v1 MMU can address the
- * highest memory. This is important as command buffers may be
- * allocated outside of this limit.
+ * Set the GPU linear window to be at the end of the DMA window, where
+ * the CMA area is likely to reside. This ensures that we are able to
+ * map the command buffers while having the linear window overlap as
+ * much RAM as possible, so we can optimize mappings for other buffers.
*/
- gpu->memory_base = PHYS_OFFSET;
+ dma_mask = (u32)dma_get_required_mask(dev);
+ if (dma_mask < PHYS_OFFSET + SZ_2G)
+ gpu->memory_base = PHYS_OFFSET;
+ else
+ gpu->memory_base = dma_mask - SZ_2G + 1;
/* Map registers: */
gpu->mmio = etnaviv_ioremap(pdev, NULL, dev_name(gpu->dev));
struct hlist_node node;
struct mmu_notifier mn;
struct rb_root objects;
- struct list_head linear;
- bool has_linear;
};
struct i915_mmu_object {
struct i915_mmu_notifier *mn;
+ struct drm_i915_gem_object *obj;
struct interval_tree_node it;
struct list_head link;
- struct drm_i915_gem_object *obj;
struct work_struct work;
- bool active;
- bool is_linear;
+ bool attached;
};
- static void __cancel_userptr__worker(struct work_struct *work)
+ static void cancel_userptr(struct work_struct *work)
{
struct i915_mmu_object *mo = container_of(work, typeof(*mo), work);
struct drm_i915_gem_object *obj = mo->obj;
was_interruptible = dev_priv->mm.interruptible;
dev_priv->mm.interruptible = false;
- list_for_each_entry_safe(vma, tmp, &obj->vma_list, vma_link) {
+ list_for_each_entry_safe(vma, tmp, &obj->vma_list, obj_link) {
int ret = i915_vma_unbind(vma);
WARN_ON(ret && ret != -EIO);
}
mutex_unlock(&dev->struct_mutex);
}
- static unsigned long cancel_userptr(struct i915_mmu_object *mo)
+ static void add_object(struct i915_mmu_object *mo)
{
- unsigned long end = mo->obj->userptr.ptr + mo->obj->base.size;
-
- /* The mmu_object is released late when destroying the
- * GEM object so it is entirely possible to gain a
- * reference on an object in the process of being freed
- * since our serialisation is via the spinlock and not
- * the struct_mutex - and consequently use it after it
- * is freed and then double free it.
- */
- if (mo->active && kref_get_unless_zero(&mo->obj->base.refcount)) {
- schedule_work(&mo->work);
- /* only schedule one work packet to avoid the refleak */
- mo->active = false;
- }
+ if (mo->attached)
+ return;
- return end;
+ interval_tree_insert(&mo->it, &mo->mn->objects);
+ mo->attached = true;
+ }
+
+ static void del_object(struct i915_mmu_object *mo)
+ {
+ if (!mo->attached)
+ return;
+
+ interval_tree_remove(&mo->it, &mo->mn->objects);
+ mo->attached = false;
}
static void i915_gem_userptr_mn_invalidate_range_start(struct mmu_notifier *_mn,
struct i915_mmu_notifier *mn =
container_of(_mn, struct i915_mmu_notifier, mn);
struct i915_mmu_object *mo;
+ struct interval_tree_node *it;
+ LIST_HEAD(cancelled);
+
+ if (RB_EMPTY_ROOT(&mn->objects))
+ return;
/* interval ranges are inclusive, but invalidate range is exclusive */
end--;
spin_lock(&mn->lock);
- if (mn->has_linear) {
- list_for_each_entry(mo, &mn->linear, link) {
- if (mo->it.last < start || mo->it.start > end)
- continue;
-
- cancel_userptr(mo);
- }
- } else {
- struct interval_tree_node *it;
+ it = interval_tree_iter_first(&mn->objects, start, end);
+ while (it) {
+ /* The mmu_object is released late when destroying the
+ * GEM object so it is entirely possible to gain a
+ * reference on an object in the process of being freed
+ * since our serialisation is via the spinlock and not
+ * the struct_mutex - and consequently use it after it
+ * is freed and then double free it. To prevent that
+ * use-after-free we only acquire a reference on the
+ * object if it is not in the process of being destroyed.
+ */
+ mo = container_of(it, struct i915_mmu_object, it);
+ if (kref_get_unless_zero(&mo->obj->base.refcount))
+ schedule_work(&mo->work);
- it = interval_tree_iter_first(&mn->objects, start, end);
- while (it) {
- mo = container_of(it, struct i915_mmu_object, it);
- start = cancel_userptr(mo);
- it = interval_tree_iter_next(it, start, end);
- }
+ list_add(&mo->link, &cancelled);
+ it = interval_tree_iter_next(it, start, end);
}
+ list_for_each_entry(mo, &cancelled, link)
+ del_object(mo);
spin_unlock(&mn->lock);
}
spin_lock_init(&mn->lock);
mn->mn.ops = &i915_gem_userptr_notifier;
mn->objects = RB_ROOT;
- INIT_LIST_HEAD(&mn->linear);
- mn->has_linear = false;
/* Protected by mmap_sem (write-lock) */
ret = __mmu_notifier_register(&mn->mn, mm);
return mn;
}
- static int
- i915_mmu_notifier_add(struct drm_device *dev,
- struct i915_mmu_notifier *mn,
- struct i915_mmu_object *mo)
- {
- struct interval_tree_node *it;
- int ret = 0;
-
- /* By this point we have already done a lot of expensive setup that
- * we do not want to repeat just because the caller (e.g. X) has a
- * signal pending (and partly because of that expensive setup, X
- * using an interrupt timer is likely to get stuck in an EINTR loop).
- */
- mutex_lock(&dev->struct_mutex);
-
- /* Make sure we drop the final active reference (and thereby
- * remove the objects from the interval tree) before we do
- * the check for overlapping objects.
- */
- i915_gem_retire_requests(dev);
-
- spin_lock(&mn->lock);
- it = interval_tree_iter_first(&mn->objects,
- mo->it.start, mo->it.last);
- if (it) {
- struct drm_i915_gem_object *obj;
-
- /* We only need to check the first object in the range as it
- * either has cancelled gup work queued and we need to
- * return back to the user to give time for the gup-workers
- * to flush their object references upon which the object will
- * be removed from the interval-tree, or the the range is
- * still in use by another client and the overlap is invalid.
- *
- * If we do have an overlap, we cannot use the interval tree
- * for fast range invalidation.
- */
-
- obj = container_of(it, struct i915_mmu_object, it)->obj;
- if (!obj->userptr.workers)
- mn->has_linear = mo->is_linear = true;
- else
- ret = -EAGAIN;
- } else
- interval_tree_insert(&mo->it, &mn->objects);
-
- if (ret == 0)
- list_add(&mo->link, &mn->linear);
-
- spin_unlock(&mn->lock);
- mutex_unlock(&dev->struct_mutex);
-
- return ret;
- }
-
- static bool i915_mmu_notifier_has_linear(struct i915_mmu_notifier *mn)
- {
- struct i915_mmu_object *mo;
-
- list_for_each_entry(mo, &mn->linear, link)
- if (mo->is_linear)
- return true;
-
- return false;
- }
-
- static void
- i915_mmu_notifier_del(struct i915_mmu_notifier *mn,
- struct i915_mmu_object *mo)
- {
- spin_lock(&mn->lock);
- list_del(&mo->link);
- if (mo->is_linear)
- mn->has_linear = i915_mmu_notifier_has_linear(mn);
- else
- interval_tree_remove(&mo->it, &mn->objects);
- spin_unlock(&mn->lock);
- }
-
static void
i915_gem_userptr_release__mmu_notifier(struct drm_i915_gem_object *obj)
{
if (mo == NULL)
return;
- i915_mmu_notifier_del(mo->mn, mo);
+ spin_lock(&mo->mn->lock);
+ del_object(mo);
+ spin_unlock(&mo->mn->lock);
kfree(mo);
obj->userptr.mmu_object = NULL;
{
struct i915_mmu_notifier *mn;
struct i915_mmu_object *mo;
- int ret;
if (flags & I915_USERPTR_UNSYNCHRONIZED)
return capable(CAP_SYS_ADMIN) ? 0 : -EPERM;
return -ENOMEM;
mo->mn = mn;
- mo->it.start = obj->userptr.ptr;
- mo->it.last = mo->it.start + obj->base.size - 1;
mo->obj = obj;
- INIT_WORK(&mo->work, __cancel_userptr__worker);
-
- ret = i915_mmu_notifier_add(obj->base.dev, mn, mo);
- if (ret) {
- kfree(mo);
- return ret;
- }
+ mo->it.start = obj->userptr.ptr;
+ mo->it.last = obj->userptr.ptr + obj->base.size - 1;
+ INIT_WORK(&mo->work, cancel_userptr);
obj->userptr.mmu_object = mo;
return 0;
/* In order to serialise get_pages with an outstanding
* cancel_userptr, we must drop the struct_mutex and try again.
*/
- if (!value || !work_pending(&obj->userptr.mmu_object->work))
- obj->userptr.mmu_object->active = value;
+ if (!value)
+ del_object(obj->userptr.mmu_object);
+ else if (!work_pending(&obj->userptr.mmu_object->work))
+ add_object(obj->userptr.mmu_object);
else
ret = -EAGAIN;
spin_unlock(&obj->userptr.mmu_object->mn->lock);
down_read(&mm->mmap_sem);
while (pinned < npages) {
- ret = get_user_pages(work->task, mm,
- obj->userptr.ptr + pinned * PAGE_SIZE,
- npages - pinned,
- !obj->userptr.read_only, 0,
- pvec + pinned, NULL);
+ ret = get_user_pages_remote(work->task, mm,
+ obj->userptr.ptr + pinned * PAGE_SIZE,
+ npages - pinned,
+ !obj->userptr.read_only, 0,
+ pvec + pinned, NULL);
if (ret < 0)
break;
DMM_PAT_DESCR__2, DMM_PAT_DESCR__3},
};
+ static u32 dmm_read(struct dmm *dmm, u32 reg)
+ {
+ return readl(dmm->base + reg);
+ }
+
+ static void dmm_write(struct dmm *dmm, u32 val, u32 reg)
+ {
+ writel(val, dmm->base + reg);
+ }
+
/* simple allocator to grab next 16 byte aligned memory from txn */
static void *alloc_dma(struct dmm_txn *txn, size_t sz, dma_addr_t *pa)
{
i = DMM_FIXED_RETRY_COUNT;
while (true) {
- r = readl(dmm->base + reg[PAT_STATUS][engine->id]);
+ r = dmm_read(dmm, reg[PAT_STATUS][engine->id]);
err = r & DMM_PATSTATUS_ERR;
if (err)
return -EFAULT;
static irqreturn_t omap_dmm_irq_handler(int irq, void *arg)
{
struct dmm *dmm = arg;
- uint32_t status = readl(dmm->base + DMM_PAT_IRQSTATUS);
+ uint32_t status = dmm_read(dmm, DMM_PAT_IRQSTATUS);
int i;
/* ack IRQ */
- writel(status, dmm->base + DMM_PAT_IRQSTATUS);
+ dmm_write(dmm, status, DMM_PAT_IRQSTATUS);
for (i = 0; i < dmm->num_engines; i++) {
if (status & DMM_IRQSTAT_LST) {
txn->last_pat->next_pa = 0;
/* write to PAT_DESCR to clear out any pending transaction */
- writel(0x0, dmm->base + reg[PAT_DESCR][engine->id]);
+ dmm_write(dmm, 0x0, reg[PAT_DESCR][engine->id]);
/* wait for engine ready: */
ret = wait_status(engine, DMM_PATSTATUS_READY);
smp_mb();
/* kick reload */
- writel(engine->refill_pa,
- dmm->base + reg[PAT_DESCR][engine->id]);
+ dmm_write(dmm, engine->refill_pa, reg[PAT_DESCR][engine->id]);
if (wait) {
if (!wait_for_completion_timeout(&engine->compl,
struct tcm_area slice, area_s;
struct dmm_txn *txn;
+ /*
+ * FIXME
+ *
+ * Asynchronous fill does not work reliably, as the driver does not
+ * handle errors in the async code paths. The fill operation may
+ * silently fail, leading to leaking DMM engines, which may eventually
+ * lead to deadlock if we run out of DMM engines.
+ *
+ * For now, always set 'wait' so that we only use sync fills. Async
+ * fills should be fixed, or alternatively we could decide to only
+ * support sync fills and so the whole async code path could be removed.
+ */
+
+ wait = true;
+
txn = dmm_txn_init(omap_dmm, area->tcm);
if (IS_ERR_OR_NULL(txn))
return -ENOMEM;
kfree(omap_dmm->engines);
if (omap_dmm->refill_va)
- dma_free_writecombine(omap_dmm->dev,
- REFILL_BUFFER_SIZE * omap_dmm->num_engines,
- omap_dmm->refill_va,
- omap_dmm->refill_pa);
+ dma_free_wc(omap_dmm->dev,
+ REFILL_BUFFER_SIZE * omap_dmm->num_engines,
+ omap_dmm->refill_va, omap_dmm->refill_pa);
if (omap_dmm->dummy_page)
__free_page(omap_dmm->dummy_page);
omap_dmm->dev = &dev->dev;
- hwinfo = readl(omap_dmm->base + DMM_PAT_HWINFO);
+ hwinfo = dmm_read(omap_dmm, DMM_PAT_HWINFO);
omap_dmm->num_engines = (hwinfo >> 24) & 0x1F;
omap_dmm->num_lut = (hwinfo >> 16) & 0x1F;
omap_dmm->container_width = 256;
atomic_set(&omap_dmm->engine_counter, omap_dmm->num_engines);
/* read out actual LUT width and height */
- pat_geom = readl(omap_dmm->base + DMM_PAT_GEOMETRY);
+ pat_geom = dmm_read(omap_dmm, DMM_PAT_GEOMETRY);
omap_dmm->lut_width = ((pat_geom >> 16) & 0xF) << 5;
omap_dmm->lut_height = ((pat_geom >> 24) & 0xF) << 5;
omap_dmm->num_lut++;
/* initialize DMM registers */
- writel(0x88888888, omap_dmm->base + DMM_PAT_VIEW__0);
- writel(0x88888888, omap_dmm->base + DMM_PAT_VIEW__1);
- writel(0x80808080, omap_dmm->base + DMM_PAT_VIEW_MAP__0);
- writel(0x80000000, omap_dmm->base + DMM_PAT_VIEW_MAP_BASE);
- writel(0x88888888, omap_dmm->base + DMM_TILER_OR__0);
- writel(0x88888888, omap_dmm->base + DMM_TILER_OR__1);
+ dmm_write(omap_dmm, 0x88888888, DMM_PAT_VIEW__0);
+ dmm_write(omap_dmm, 0x88888888, DMM_PAT_VIEW__1);
+ dmm_write(omap_dmm, 0x80808080, DMM_PAT_VIEW_MAP__0);
+ dmm_write(omap_dmm, 0x80000000, DMM_PAT_VIEW_MAP_BASE);
+ dmm_write(omap_dmm, 0x88888888, DMM_TILER_OR__0);
+ dmm_write(omap_dmm, 0x88888888, DMM_TILER_OR__1);
ret = request_irq(omap_dmm->irq, omap_dmm_irq_handler, IRQF_SHARED,
"omap_dmm_irq_handler", omap_dmm);
* buffers for accelerated pan/scroll) and FILL_DSC<n> which
* we just generally don't care about.
*/
- writel(0x7e7e7e7e, omap_dmm->base + DMM_PAT_IRQENABLE_SET);
+ dmm_write(omap_dmm, 0x7e7e7e7e, DMM_PAT_IRQENABLE_SET);
omap_dmm->dummy_page = alloc_page(GFP_KERNEL | __GFP_DMA32);
if (!omap_dmm->dummy_page) {
omap_dmm->dummy_pa = page_to_phys(omap_dmm->dummy_page);
/* alloc refill memory */
- omap_dmm->refill_va = dma_alloc_writecombine(&dev->dev,
- REFILL_BUFFER_SIZE * omap_dmm->num_engines,
- &omap_dmm->refill_pa, GFP_KERNEL);
+ omap_dmm->refill_va = dma_alloc_wc(&dev->dev,
+ REFILL_BUFFER_SIZE * omap_dmm->num_engines,
+ &omap_dmm->refill_pa, GFP_KERNEL);
if (!omap_dmm->refill_va) {
dev_err(&dev->dev, "could not allocate refill memory\n");
goto fail;
*/
/* note: we use upper 8 bits of flags for driver-internal flags: */
- #define OMAP_BO_DMA 0x01000000 /* actually is physically contiguous */
- #define OMAP_BO_EXT_SYNC 0x02000000 /* externally allocated sync object */
- #define OMAP_BO_EXT_MEM 0x04000000 /* externally allocated memory */
+ #define OMAP_BO_MEM_DMA_API 0x01000000 /* memory allocated with the dma_alloc_* API */
+ #define OMAP_BO_MEM_SHMEM 0x02000000 /* memory allocated through shmem backing */
+ #define OMAP_BO_MEM_DMABUF 0x08000000 /* memory imported from a dmabuf */
struct omap_gem_object {
struct drm_gem_object base;
uint32_t roll;
/**
- * If buffer is allocated physically contiguous, the OMAP_BO_DMA flag
- * is set and the paddr is valid. Also if the buffer is remapped in
- * TILER and paddr_cnt > 0, then paddr is valid. But if you are using
- * the physical address and OMAP_BO_DMA is not set, then you should
- * be going thru omap_gem_{get,put}_paddr() to ensure the mapping is
- * not removed from under your feet.
+ * paddr contains the buffer DMA address. It is valid for
*
- * Note that OMAP_BO_SCANOUT is a hint from userspace that DMA capable
- * buffer is requested, but doesn't mean that it is. Use the
- * OMAP_BO_DMA flag to determine if the buffer has a DMA capable
- * physical address.
+ * - buffers allocated through the DMA mapping API (with the
+ * OMAP_BO_MEM_DMA_API flag set)
+ *
+ * - buffers imported from dmabuf (with the OMAP_BO_MEM_DMABUF flag set)
+ * if they are physically contiguous (when sgt->orig_nents == 1)
+ *
+ * - buffers mapped through the TILER when paddr_cnt is not zero, in
+ * which case the DMA address points to the TILER aperture
+ *
+ * Physically contiguous buffers have their DMA address equal to the
+ * physical address as we don't remap those buffers through the TILER.
+ *
+ * Buffers mapped to the TILER have their DMA address pointing to the
+ * TILER aperture. As TILER mappings are refcounted (through paddr_cnt)
+ * the DMA address must be accessed through omap_get_get_paddr() to
+ * ensure that the mapping won't disappear unexpectedly. References must
+ * be released with omap_gem_put_paddr().
*/
dma_addr_t paddr;
*/
uint32_t paddr_cnt;
+ /**
+ * If the buffer has been imported from a dmabuf the OMAP_DB_DMABUF flag
+ * is set and the sgt field is valid.
+ */
+ struct sg_table *sgt;
+
/**
* tiler block used when buffer is remapped in DMM/TILER.
*/
* sync-object allocated on demand (if needed)
*
* Per-buffer sync-object for tracking pending and completed hw/dma
- * read and write operations. The layout in memory is dictated by
- * the SGX firmware, which uses this information to stall the command
- * stream if a surface is not ready yet.
- *
- * Note that when buffer is used by SGX, the sync-object needs to be
- * allocated from a special heap of sync-objects. This way many sync
- * objects can be packed in a page, and not waste GPU virtual address
- * space. Because of this we have to have a omap_gem_set_sync_object()
- * API to allow replacement of the syncobj after it has (potentially)
- * already been allocated. A bit ugly but I haven't thought of a
- * better alternative.
+ * read and write operations.
*/
struct {
uint32_t write_pending;
return drm_vma_node_offset_addr(&obj->vma_node);
}
- /* GEM objects can either be allocated from contiguous memory (in which
- * case obj->filp==NULL), or w/ shmem backing (obj->filp!=NULL). But non
- * contiguous buffers can be remapped in TILER/DMM if they need to be
- * contiguous... but we don't do this all the time to reduce pressure
- * on TILER/DMM space when we know at allocation time that the buffer
- * will need to be scanned out.
- */
- static inline bool is_shmem(struct drm_gem_object *obj)
+ static bool is_contiguous(struct omap_gem_object *omap_obj)
{
- return obj->filp != NULL;
+ if (omap_obj->flags & OMAP_BO_MEM_DMA_API)
+ return true;
+
+ if ((omap_obj->flags & OMAP_BO_MEM_DMABUF) && omap_obj->sgt->nents == 1)
+ return true;
+
+ return false;
}
/* -----------------------------------------------------------------------------
for (i = 0; i < npages; i++) {
addrs[i] = dma_map_page(dev->dev, pages[i],
0, PAGE_SIZE, DMA_BIDIRECTIONAL);
+
+ if (dma_mapping_error(dev->dev, addrs[i])) {
+ dev_warn(dev->dev,
+ "%s: failed to map page\n", __func__);
+
+ for (i = i - 1; i >= 0; --i) {
+ dma_unmap_page(dev->dev, addrs[i],
+ PAGE_SIZE, DMA_BIDIRECTIONAL);
+ }
+
+ ret = -ENOMEM;
+ goto free_addrs;
+ }
}
} else {
addrs = kzalloc(npages * sizeof(*addrs), GFP_KERNEL);
return 0;
+ free_addrs:
+ kfree(addrs);
free_pages:
drm_gem_put_pages(obj, pages, true, false);
struct omap_gem_object *omap_obj = to_omap_bo(obj);
int ret = 0;
- if (is_shmem(obj) && !omap_obj->pages) {
+ if ((omap_obj->flags & OMAP_BO_MEM_SHMEM) && !omap_obj->pages) {
ret = omap_gem_attach_pages(obj);
if (ret) {
dev_err(obj->dev->dev, "could not attach pages\n");
omap_gem_cpu_sync(obj, pgoff);
pfn = page_to_pfn(omap_obj->pages[pgoff]);
} else {
- BUG_ON(!(omap_obj->flags & OMAP_BO_DMA));
+ BUG_ON(!is_contiguous(omap_obj));
pfn = (omap_obj->paddr >> PAGE_SHIFT) + pgoff;
}
case 0:
case -ERESTARTSYS:
case -EINTR:
+ case -EBUSY:
+ /*
+ * EBUSY is ok: this just means that another thread
+ * already did the job.
+ */
return VM_FAULT_NOPAGE;
case -ENOMEM:
return VM_FAULT_OOM;
static inline bool is_cached_coherent(struct drm_gem_object *obj)
{
struct omap_gem_object *omap_obj = to_omap_bo(obj);
- return is_shmem(obj) &&
+
+ return (omap_obj->flags & OMAP_BO_MEM_SHMEM) &&
((omap_obj->flags & OMAP_BO_CACHE_MASK) == OMAP_BO_CACHED);
}
for (i = 0; i < npages; i++) {
if (!omap_obj->addrs[i]) {
- omap_obj->addrs[i] = dma_map_page(dev->dev, pages[i], 0,
+ dma_addr_t addr;
+
+ addr = dma_map_page(dev->dev, pages[i], 0,
PAGE_SIZE, DMA_BIDIRECTIONAL);
+
+ if (dma_mapping_error(dev->dev, addr)) {
+ dev_warn(dev->dev,
+ "%s: failed to map page\n",
+ __func__);
+ break;
+ }
+
dirty = true;
+ omap_obj->addrs[i] = addr;
}
}
mutex_lock(&obj->dev->struct_mutex);
- if (remap && is_shmem(obj) && priv->has_dmm) {
+ if (!is_contiguous(omap_obj) && remap && priv->has_dmm) {
if (omap_obj->paddr_cnt == 0) {
struct page **pages;
uint32_t npages = obj->size >> PAGE_SHIFT;
omap_obj->paddr_cnt++;
*paddr = omap_obj->paddr;
- } else if (omap_obj->flags & OMAP_BO_DMA) {
+ } else if (is_contiguous(omap_obj)) {
*paddr = omap_obj->paddr;
} else {
ret = -EINVAL;
return ret;
}
- /* it is a bit lame to handle updates in this sort of polling way, but
- * in case of PVR, the GPU can directly update read/write complete
- * values, and not really tell us which ones it updated.. this also
- * means that sync_lock is not quite sufficient. So we'll need to
- * do something a bit better when it comes time to add support for
- * separate 2d hw..
- */
- void omap_gem_op_update(void)
- {
- spin_lock(&sync_lock);
- sync_op_update();
- spin_unlock(&sync_lock);
- }
-
/* mark the start of read and/or write operation */
int omap_gem_op_start(struct drm_gem_object *obj, enum omap_gem_op op)
{
* is currently blocked.. fxn() can be called from any context
*
* (TODO for now fxn is called back from whichever context calls
- * omap_gem_op_update().. but this could be better defined later
+ * omap_gem_op_finish().. but this could be better defined later
* if needed)
*
* TODO more code in common w/ _sync()..
return 0;
}
- /* special API so PVR can update the buffer to use a sync-object allocated
- * from it's sync-obj heap. Only used for a newly allocated (from PVR's
- * perspective) sync-object, so we overwrite the new syncobj w/ values
- * from the already allocated syncobj (if there is one)
- */
- int omap_gem_set_sync_object(struct drm_gem_object *obj, void *syncobj)
- {
- struct omap_gem_object *omap_obj = to_omap_bo(obj);
- int ret = 0;
-
- spin_lock(&sync_lock);
-
- if ((omap_obj->flags & OMAP_BO_EXT_SYNC) && !syncobj) {
- /* clearing a previously set syncobj */
- syncobj = kmemdup(omap_obj->sync, sizeof(*omap_obj->sync),
- GFP_ATOMIC);
- if (!syncobj) {
- ret = -ENOMEM;
- goto unlock;
- }
- omap_obj->flags &= ~OMAP_BO_EXT_SYNC;
- omap_obj->sync = syncobj;
- } else if (syncobj && !(omap_obj->flags & OMAP_BO_EXT_SYNC)) {
- /* replacing an existing syncobj */
- if (omap_obj->sync) {
- memcpy(syncobj, omap_obj->sync, sizeof(*omap_obj->sync));
- kfree(omap_obj->sync);
- }
- omap_obj->flags |= OMAP_BO_EXT_SYNC;
- omap_obj->sync = syncobj;
- }
-
- unlock:
- spin_unlock(&sync_lock);
- return ret;
- }
-
/* -----------------------------------------------------------------------------
* Constructor & Destructor
*/
- /* don't call directly.. called from GEM core when it is time to actually
- * free the object..
- */
void omap_gem_free_object(struct drm_gem_object *obj)
{
struct drm_device *dev = obj->dev;
*/
WARN_ON(omap_obj->paddr_cnt > 0);
- /* don't free externally allocated backing memory */
- if (!(omap_obj->flags & OMAP_BO_EXT_MEM)) {
- if (omap_obj->pages)
+ if (omap_obj->pages) {
+ if (omap_obj->flags & OMAP_BO_MEM_DMABUF)
+ kfree(omap_obj->pages);
+ else
omap_gem_detach_pages(obj);
+ }
- if (!is_shmem(obj)) {
- dma_free_wc(dev->dev, obj->size, omap_obj->vaddr,
- omap_obj->paddr);
- } else if (omap_obj->vaddr) {
- vunmap(omap_obj->vaddr);
- }
+ if (omap_obj->flags & OMAP_BO_MEM_DMA_API) {
- dma_free_writecombine(dev->dev, obj->size,
- omap_obj->vaddr, omap_obj->paddr);
++ dma_free_wc(dev->dev, obj->size, omap_obj->vaddr,
++ omap_obj->paddr);
+ } else if (omap_obj->vaddr) {
+ vunmap(omap_obj->vaddr);
+ } else if (obj->import_attach) {
+ drm_prime_gem_destroy(obj, omap_obj->sgt);
}
- /* don't free externally allocated syncobj */
- if (!(omap_obj->flags & OMAP_BO_EXT_SYNC))
- kfree(omap_obj->sync);
+ kfree(omap_obj->sync);
drm_gem_object_release(obj);
size_t size;
int ret;
+ /* Validate the flags and compute the memory and cache flags. */
if (flags & OMAP_BO_TILED) {
if (!priv->usergart) {
dev_err(dev->dev, "Tiled buffers require DMM\n");
return NULL;
}
- /* tiled buffers are always shmem paged backed.. when they are
- * scanned out, they are remapped into DMM/TILER
+ /*
+ * Tiled buffers are always shmem paged backed. When they are
+ * scanned out, they are remapped into DMM/TILER.
*/
flags &= ~OMAP_BO_SCANOUT;
+ flags |= OMAP_BO_MEM_SHMEM;
- /* currently don't allow cached buffers.. there is some caching
- * stuff that needs to be handled better
+ /*
+ * Currently don't allow cached buffers. There is some caching
+ * stuff that needs to be handled better.
*/
flags &= ~(OMAP_BO_CACHED|OMAP_BO_WC|OMAP_BO_UNCACHED);
flags |= tiler_get_cpu_cache_flags();
-
- /* align dimensions to slot boundaries... */
- tiler_align(gem2fmt(flags),
- &gsize.tiled.width, &gsize.tiled.height);
-
- /* ...and calculate size based on aligned dimensions */
- size = tiler_size(gem2fmt(flags),
- gsize.tiled.width, gsize.tiled.height);
- } else {
- size = PAGE_ALIGN(gsize.bytes);
+ } else if ((flags & OMAP_BO_SCANOUT) && !priv->has_dmm) {
+ /*
+ * OMAP_BO_SCANOUT hints that the buffer doesn't need to be
+ * tiled. However, to lower the pressure on memory allocation,
+ * use contiguous memory only if no TILER is available.
+ */
+ flags |= OMAP_BO_MEM_DMA_API;
+ } else if (!(flags & OMAP_BO_MEM_DMABUF)) {
+ /*
+ * All other buffers not backed by dma_buf are shmem-backed.
+ */
+ flags |= OMAP_BO_MEM_SHMEM;
}
+ /* Allocate the initialize the OMAP GEM object. */
omap_obj = kzalloc(sizeof(*omap_obj), GFP_KERNEL);
if (!omap_obj)
return NULL;
obj = &omap_obj->base;
+ omap_obj->flags = flags;
- if ((flags & OMAP_BO_SCANOUT) && !priv->has_dmm) {
- /* attempt to allocate contiguous memory if we don't
- * have DMM for remappign discontiguous buffers
+ if (flags & OMAP_BO_TILED) {
+ /*
+ * For tiled buffers align dimensions to slot boundaries and
+ * calculate size based on aligned dimensions.
*/
- omap_obj->vaddr = dma_alloc_wc(dev->dev, size,
- &omap_obj->paddr, GFP_KERNEL);
- if (!omap_obj->vaddr) {
- kfree(omap_obj);
+ tiler_align(gem2fmt(flags), &gsize.tiled.width,
+ &gsize.tiled.height);
- return NULL;
- }
-
- flags |= OMAP_BO_DMA;
- }
+ size = tiler_size(gem2fmt(flags), gsize.tiled.width,
+ gsize.tiled.height);
- spin_lock(&priv->list_lock);
- list_add(&omap_obj->mm_list, &priv->obj_list);
- spin_unlock(&priv->list_lock);
-
- omap_obj->flags = flags;
-
- if (flags & OMAP_BO_TILED) {
omap_obj->width = gsize.tiled.width;
omap_obj->height = gsize.tiled.height;
+ } else {
+ size = PAGE_ALIGN(gsize.bytes);
}
- if (flags & (OMAP_BO_DMA|OMAP_BO_EXT_MEM)) {
+ /* Initialize the GEM object. */
+ if (!(flags & OMAP_BO_MEM_SHMEM)) {
drm_gem_private_object_init(dev, obj, size);
} else {
ret = drm_gem_object_init(dev, obj, size);
if (ret)
- goto fail;
+ goto err_free;
mapping = file_inode(obj->filp)->i_mapping;
mapping_set_gfp_mask(mapping, GFP_USER | __GFP_DMA32);
}
- omap_obj->vaddr = dma_alloc_writecombine(dev->dev, size,
- &omap_obj->paddr,
- GFP_KERNEL);
+ /* Allocate memory if needed. */
+ if (flags & OMAP_BO_MEM_DMA_API) {
++ omap_obj->vaddr = dma_alloc_wc(dev->dev, size,
++ &omap_obj->paddr,
++ GFP_KERNEL);
+ if (!omap_obj->vaddr)
+ goto err_release;
+ }
+
+ spin_lock(&priv->list_lock);
+ list_add(&omap_obj->mm_list, &priv->obj_list);
+ spin_unlock(&priv->list_lock);
+
return obj;
- fail:
- omap_gem_free_object(obj);
+ err_release:
+ drm_gem_object_release(obj);
+ err_free:
+ kfree(omap_obj);
return NULL;
}
+ struct drm_gem_object *omap_gem_new_dmabuf(struct drm_device *dev, size_t size,
+ struct sg_table *sgt)
+ {
+ struct omap_drm_private *priv = dev->dev_private;
+ struct omap_gem_object *omap_obj;
+ struct drm_gem_object *obj;
+ union omap_gem_size gsize;
+
+ /* Without a DMM only physically contiguous buffers can be supported. */
+ if (sgt->orig_nents != 1 && !priv->has_dmm)
+ return ERR_PTR(-EINVAL);
+
+ mutex_lock(&dev->struct_mutex);
+
+ gsize.bytes = PAGE_ALIGN(size);
+ obj = omap_gem_new(dev, gsize, OMAP_BO_MEM_DMABUF | OMAP_BO_WC);
+ if (!obj) {
+ obj = ERR_PTR(-ENOMEM);
+ goto done;
+ }
+
+ omap_obj = to_omap_bo(obj);
+ omap_obj->sgt = sgt;
+
+ if (sgt->orig_nents == 1) {
+ omap_obj->paddr = sg_dma_address(sgt->sgl);
+ } else {
+ /* Create pages list from sgt */
+ struct sg_page_iter iter;
+ struct page **pages;
+ unsigned int npages;
+ unsigned int i = 0;
+
+ npages = DIV_ROUND_UP(size, PAGE_SIZE);
+ pages = kcalloc(npages, sizeof(*pages), GFP_KERNEL);
+ if (!pages) {
+ omap_gem_free_object(obj);
+ obj = ERR_PTR(-ENOMEM);
+ goto done;
+ }
+
+ omap_obj->pages = pages;
+
+ for_each_sg_page(sgt->sgl, &iter, sgt->orig_nents, 0) {
+ pages[i++] = sg_page_iter_page(&iter);
+ if (i > npages)
+ break;
+ }
+
+ if (WARN_ON(i != npages)) {
+ omap_gem_free_object(obj);
+ obj = ERR_PTR(-ENOMEM);
+ goto done;
+ }
+ }
+
+ done:
+ mutex_unlock(&dev->struct_mutex);
+ return obj;
+ }
+
/* convenience method to construct a GEM buffer object, and userspace handle */
int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file,
union omap_gem_size gsize, uint32_t flags, uint32_t *handle)
* for STMicroelectronics.
* License terms: GNU General Public License (GPL), version 2
*/
- #include <drm/drmP.h>
- #include <drm/drm_atomic_helper.h>
+ #include <drm/drm_atomic.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
- #include <drm/drm_plane_helper.h>
#include "sti_compositor.h"
#include "sti_cursor.h"
#define to_sti_cursor(x) container_of(x, struct sti_cursor, plane)
+ #define DBGFS_DUMP(reg) seq_printf(s, "\n %-25s 0x%08X", #reg, \
+ readl(cursor->regs + reg))
+
+ static void cursor_dbg_vpo(struct seq_file *s, u32 val)
+ {
+ seq_printf(s, "\txdo:%4d\tydo:%4d", val & 0x0FFF, (val >> 16) & 0x0FFF);
+ }
+
+ static void cursor_dbg_size(struct seq_file *s, u32 val)
+ {
+ seq_printf(s, "\t%d x %d", val & 0x07FF, (val >> 16) & 0x07FF);
+ }
+
+ static void cursor_dbg_pml(struct seq_file *s,
+ struct sti_cursor *cursor, u32 val)
+ {
+ if (cursor->pixmap.paddr == val)
+ seq_printf(s, "\tVirt @: %p", cursor->pixmap.base);
+ }
+
+ static void cursor_dbg_cml(struct seq_file *s,
+ struct sti_cursor *cursor, u32 val)
+ {
+ if (cursor->clut_paddr == val)
+ seq_printf(s, "\tVirt @: %p", cursor->clut);
+ }
+
+ static int cursor_dbg_show(struct seq_file *s, void *data)
+ {
+ struct drm_info_node *node = s->private;
+ struct sti_cursor *cursor = (struct sti_cursor *)node->info_ent->data;
+ struct drm_device *dev = node->minor->dev;
+ int ret;
+
+ ret = mutex_lock_interruptible(&dev->struct_mutex);
+ if (ret)
+ return ret;
+
+ seq_printf(s, "%s: (vaddr = 0x%p)",
+ sti_plane_to_str(&cursor->plane), cursor->regs);
+
+ DBGFS_DUMP(CUR_CTL);
+ DBGFS_DUMP(CUR_VPO);
+ cursor_dbg_vpo(s, readl(cursor->regs + CUR_VPO));
+ DBGFS_DUMP(CUR_PML);
+ cursor_dbg_pml(s, cursor, readl(cursor->regs + CUR_PML));
+ DBGFS_DUMP(CUR_PMP);
+ DBGFS_DUMP(CUR_SIZE);
+ cursor_dbg_size(s, readl(cursor->regs + CUR_SIZE));
+ DBGFS_DUMP(CUR_CML);
+ cursor_dbg_cml(s, cursor, readl(cursor->regs + CUR_CML));
+ DBGFS_DUMP(CUR_AWS);
+ DBGFS_DUMP(CUR_AWE);
+ seq_puts(s, "\n");
+
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+ }
+
+ static struct drm_info_list cursor_debugfs_files[] = {
+ { "cursor", cursor_dbg_show, 0, NULL },
+ };
+
+ static int cursor_debugfs_init(struct sti_cursor *cursor,
+ struct drm_minor *minor)
+ {
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(cursor_debugfs_files); i++)
+ cursor_debugfs_files[i].data = cursor;
+
+ return drm_debugfs_create_files(cursor_debugfs_files,
+ ARRAY_SIZE(cursor_debugfs_files),
+ minor->debugfs_root, minor);
+ }
+
static void sti_cursor_argb8888_to_clut8(struct sti_cursor *cursor, u32 *src)
{
u8 *dst = cursor->pixmap.base;
(b * 5);
}
- static void sti_cursor_atomic_update(struct drm_plane *drm_plane,
- struct drm_plane_state *oldstate)
+ static int sti_cursor_atomic_check(struct drm_plane *drm_plane,
+ struct drm_plane_state *state)
{
- struct drm_plane_state *state = drm_plane->state;
struct sti_plane *plane = to_sti_plane(drm_plane);
struct sti_cursor *cursor = to_sti_cursor(plane);
struct drm_crtc *crtc = state->crtc;
- struct sti_mixer *mixer = to_sti_mixer(crtc);
struct drm_framebuffer *fb = state->fb;
- struct drm_display_mode *mode = &crtc->mode;
- int dst_x = state->crtc_x;
- int dst_y = state->crtc_y;
- int dst_w = clamp_val(state->crtc_w, 0, mode->crtc_hdisplay - dst_x);
- int dst_h = clamp_val(state->crtc_h, 0, mode->crtc_vdisplay - dst_y);
+ struct drm_crtc_state *crtc_state;
+ struct drm_display_mode *mode;
+ int dst_x, dst_y, dst_w, dst_h;
+ int src_w, src_h;
+
+ /* no need for further checks if the plane is being disabled */
+ if (!crtc || !fb)
+ return 0;
+
+ crtc_state = drm_atomic_get_crtc_state(state->state, crtc);
+ mode = &crtc_state->mode;
+ dst_x = state->crtc_x;
+ dst_y = state->crtc_y;
+ dst_w = clamp_val(state->crtc_w, 0, mode->crtc_hdisplay - dst_x);
+ dst_h = clamp_val(state->crtc_h, 0, mode->crtc_vdisplay - dst_y);
/* src_x are in 16.16 format */
- int src_w = state->src_w >> 16;
- int src_h = state->src_h >> 16;
- bool first_prepare = plane->status == STI_PLANE_DISABLED ? true : false;
- struct drm_gem_cma_object *cma_obj;
- u32 y, x;
- u32 val;
-
- DRM_DEBUG_KMS("CRTC:%d (%s) drm plane:%d (%s)\n",
- crtc->base.id, sti_mixer_to_str(mixer),
- drm_plane->base.id, sti_plane_to_str(plane));
- DRM_DEBUG_KMS("(%dx%d)@(%d,%d)\n", dst_w, dst_h, dst_x, dst_y);
-
- dev_dbg(cursor->dev, "%s %s\n", __func__,
- sti_plane_to_str(plane));
+ src_w = state->src_w >> 16;
+ src_h = state->src_h >> 16;
if (src_w < STI_CURS_MIN_SIZE ||
src_h < STI_CURS_MIN_SIZE ||
src_h > STI_CURS_MAX_SIZE) {
DRM_ERROR("Invalid cursor size (%dx%d)\n",
src_w, src_h);
- return;
+ return -EINVAL;
}
/* If the cursor size has changed, re-allocated the pixmap */
cursor->height = src_h;
if (cursor->pixmap.base)
- dma_free_writecombine(cursor->dev,
- cursor->pixmap.size,
- cursor->pixmap.base,
- cursor->pixmap.paddr);
+ dma_free_wc(cursor->dev, cursor->pixmap.size,
+ cursor->pixmap.base, cursor->pixmap.paddr);
cursor->pixmap.size = cursor->width * cursor->height;
- cursor->pixmap.base = dma_alloc_writecombine(cursor->dev,
- cursor->pixmap.size,
- &cursor->pixmap.paddr,
- GFP_KERNEL | GFP_DMA);
+ cursor->pixmap.base = dma_alloc_wc(cursor->dev,
+ cursor->pixmap.size,
+ &cursor->pixmap.paddr,
+ GFP_KERNEL | GFP_DMA);
if (!cursor->pixmap.base) {
DRM_ERROR("Failed to allocate memory for pixmap\n");
- return;
+ return -EINVAL;
}
}
- cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
- if (!cma_obj) {
+ if (!drm_fb_cma_get_gem_obj(fb, 0)) {
DRM_ERROR("Can't get CMA GEM object for fb\n");
- return;
+ return -EINVAL;
}
+ DRM_DEBUG_KMS("CRTC:%d (%s) drm plane:%d (%s)\n",
+ crtc->base.id, sti_mixer_to_str(to_sti_mixer(crtc)),
+ drm_plane->base.id, sti_plane_to_str(plane));
+ DRM_DEBUG_KMS("(%dx%d)@(%d,%d)\n", dst_w, dst_h, dst_x, dst_y);
+
+ return 0;
+ }
+
+ static void sti_cursor_atomic_update(struct drm_plane *drm_plane,
+ struct drm_plane_state *oldstate)
+ {
+ struct drm_plane_state *state = drm_plane->state;
+ struct sti_plane *plane = to_sti_plane(drm_plane);
+ struct sti_cursor *cursor = to_sti_cursor(plane);
+ struct drm_crtc *crtc = state->crtc;
+ struct drm_framebuffer *fb = state->fb;
+ struct drm_display_mode *mode;
+ int dst_x, dst_y;
+ struct drm_gem_cma_object *cma_obj;
+ u32 y, x;
+ u32 val;
+
+ if (!crtc || !fb)
+ return;
+
+ mode = &crtc->mode;
+ dst_x = state->crtc_x;
+ dst_y = state->crtc_y;
+
+ cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
+
/* Convert ARGB8888 to CLUT8 */
sti_cursor_argb8888_to_clut8(cursor, (u32 *)cma_obj->vaddr);
val = y << 16 | x;
writel(val, cursor->regs + CUR_AWE);
- if (first_prepare) {
- /* Set and fetch CLUT */
- writel(cursor->clut_paddr, cursor->regs + CUR_CML);
- writel(CUR_CTL_CLUT_UPDATE, cursor->regs + CUR_CTL);
- }
-
/* Set memory location, size, and position */
writel(cursor->pixmap.paddr, cursor->regs + CUR_PML);
writel(cursor->width, cursor->regs + CUR_PMP);
writel(cursor->height << 16 | cursor->width, cursor->regs + CUR_SIZE);
y = sti_vtg_get_line_number(*mode, dst_y);
- x = sti_vtg_get_pixel_number(*mode, dst_y);
+ x = sti_vtg_get_pixel_number(*mode, dst_x);
writel((y << 16) | x, cursor->regs + CUR_VPO);
+ /* Set and fetch CLUT */
+ writel(cursor->clut_paddr, cursor->regs + CUR_CML);
+ writel(CUR_CTL_CLUT_UPDATE, cursor->regs + CUR_CTL);
+
+ sti_plane_update_fps(plane, true, false);
+
plane->status = STI_PLANE_UPDATED;
}
struct drm_plane_state *oldstate)
{
struct sti_plane *plane = to_sti_plane(drm_plane);
- struct sti_mixer *mixer = to_sti_mixer(drm_plane->crtc);
if (!drm_plane->crtc) {
DRM_DEBUG_DRIVER("drm plane:%d not enabled\n",
}
DRM_DEBUG_DRIVER("CRTC:%d (%s) drm plane:%d (%s)\n",
- drm_plane->crtc->base.id, sti_mixer_to_str(mixer),
+ drm_plane->crtc->base.id,
+ sti_mixer_to_str(to_sti_mixer(drm_plane->crtc)),
drm_plane->base.id, sti_plane_to_str(plane));
plane->status = STI_PLANE_DISABLING;
}
static const struct drm_plane_helper_funcs sti_cursor_helpers_funcs = {
+ .atomic_check = sti_cursor_atomic_check,
.atomic_update = sti_cursor_atomic_update,
.atomic_disable = sti_cursor_atomic_disable,
};
/* Allocate clut buffer */
size = 0x100 * sizeof(unsigned short);
- cursor->clut = dma_alloc_writecombine(dev, size, &cursor->clut_paddr,
- GFP_KERNEL | GFP_DMA);
+ cursor->clut = dma_alloc_wc(dev, size, &cursor->clut_paddr,
+ GFP_KERNEL | GFP_DMA);
if (!cursor->clut) {
DRM_ERROR("Failed to allocate memory for cursor clut\n");
sti_plane_init_property(&cursor->plane, DRM_PLANE_TYPE_CURSOR);
+ if (cursor_debugfs_init(cursor, drm_dev->primary))
+ DRM_ERROR("CURSOR debugfs setup failed\n");
+
return &cursor->plane.drm_plane;
err_plane:
- dma_free_writecombine(dev, size, cursor->clut, cursor->clut_paddr);
+ dma_free_wc(dev, size, cursor->clut, cursor->clut_paddr);
err_clut:
devm_kfree(dev, cursor);
return NULL;
* License terms: GNU General Public License (GPL), version 2
*/
- #include <linux/clk.h>
- #include <linux/dma-mapping.h>
-
+ #include <drm/drm_atomic.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
#define GDP_ABGR8888 (GDP_ARGB8888 | BIGNOTLITTLE | ALPHASWITCH)
#define GDP_ARGB1555 0x06
#define GDP_ARGB4444 0x07
- #define GDP_CLUT8 0x0B
- #define GDP_YCBR888 0x10
- #define GDP_YCBR422R 0x12
- #define GDP_AYCBR8888 0x15
+
+ #define GDP2STR(fmt) { GDP_ ## fmt, #fmt }
+
+ static struct gdp_format_to_str {
+ int format;
+ char name[20];
+ } gdp_format_to_str[] = {
+ GDP2STR(RGB565),
+ GDP2STR(RGB888),
+ GDP2STR(RGB888_32),
+ GDP2STR(XBGR8888),
+ GDP2STR(ARGB8565),
+ GDP2STR(ARGB8888),
+ GDP2STR(ABGR8888),
+ GDP2STR(ARGB1555),
+ GDP2STR(ARGB4444)
+ };
#define GAM_GDP_CTL_OFFSET 0x00
#define GAM_GDP_AGC_OFFSET 0x04
* @vtg_field_nb: callback for VTG FIELD (top or bottom) notification
* @is_curr_top: true if the current node processed is the top field
* @node_list: array of node list
+ * @vtg: registered vtg
*/
struct sti_gdp {
struct sti_plane plane;
struct notifier_block vtg_field_nb;
bool is_curr_top;
struct sti_gdp_node_list node_list[GDP_NODE_NB_BANK];
+ struct sti_vtg *vtg;
};
#define to_sti_gdp(x) container_of(x, struct sti_gdp, plane)
DRM_FORMAT_ARGB1555,
DRM_FORMAT_RGB565,
DRM_FORMAT_RGB888,
- DRM_FORMAT_AYUV,
- DRM_FORMAT_YUV444,
- DRM_FORMAT_VYUY,
- DRM_FORMAT_C8,
};
+ #define DBGFS_DUMP(reg) seq_printf(s, "\n %-25s 0x%08X", #reg, \
+ readl(gdp->regs + reg ## _OFFSET))
+
+ static void gdp_dbg_ctl(struct seq_file *s, int val)
+ {
+ int i;
+
+ seq_puts(s, "\tColor:");
+ for (i = 0; i < ARRAY_SIZE(gdp_format_to_str); i++) {
+ if (gdp_format_to_str[i].format == (val & 0x1F)) {
+ seq_printf(s, gdp_format_to_str[i].name);
+ break;
+ }
+ }
+ if (i == ARRAY_SIZE(gdp_format_to_str))
+ seq_puts(s, "<UNKNOWN>");
+
+ seq_printf(s, "\tWaitNextVsync:%d", val & WAIT_NEXT_VSYNC ? 1 : 0);
+ }
+
+ static void gdp_dbg_vpo(struct seq_file *s, int val)
+ {
+ seq_printf(s, "\txdo:%4d\tydo:%4d", val & 0xFFFF, (val >> 16) & 0xFFFF);
+ }
+
+ static void gdp_dbg_vps(struct seq_file *s, int val)
+ {
+ seq_printf(s, "\txds:%4d\tyds:%4d", val & 0xFFFF, (val >> 16) & 0xFFFF);
+ }
+
+ static void gdp_dbg_size(struct seq_file *s, int val)
+ {
+ seq_printf(s, "\t%d x %d", val & 0xFFFF, (val >> 16) & 0xFFFF);
+ }
+
+ static void gdp_dbg_nvn(struct seq_file *s, struct sti_gdp *gdp, int val)
+ {
+ void *base = NULL;
+ unsigned int i;
+
+ for (i = 0; i < GDP_NODE_NB_BANK; i++) {
+ if (gdp->node_list[i].top_field_paddr == val) {
+ base = gdp->node_list[i].top_field;
+ break;
+ }
+ if (gdp->node_list[i].btm_field_paddr == val) {
+ base = gdp->node_list[i].btm_field;
+ break;
+ }
+ }
+
+ if (base)
+ seq_printf(s, "\tVirt @: %p", base);
+ }
+
+ static void gdp_dbg_ppt(struct seq_file *s, int val)
+ {
+ if (val & GAM_GDP_PPT_IGNORE)
+ seq_puts(s, "\tNot displayed on mixer!");
+ }
+
+ static void gdp_dbg_mst(struct seq_file *s, int val)
+ {
+ if (val & 1)
+ seq_puts(s, "\tBUFFER UNDERFLOW!");
+ }
+
+ static int gdp_dbg_show(struct seq_file *s, void *data)
+ {
+ struct drm_info_node *node = s->private;
+ struct sti_gdp *gdp = (struct sti_gdp *)node->info_ent->data;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_plane *drm_plane = &gdp->plane.drm_plane;
+ struct drm_crtc *crtc = drm_plane->crtc;
+ int ret;
+
+ ret = mutex_lock_interruptible(&dev->struct_mutex);
+ if (ret)
+ return ret;
+
+ seq_printf(s, "%s: (vaddr = 0x%p)",
+ sti_plane_to_str(&gdp->plane), gdp->regs);
+
+ DBGFS_DUMP(GAM_GDP_CTL);
+ gdp_dbg_ctl(s, readl(gdp->regs + GAM_GDP_CTL_OFFSET));
+ DBGFS_DUMP(GAM_GDP_AGC);
+ DBGFS_DUMP(GAM_GDP_VPO);
+ gdp_dbg_vpo(s, readl(gdp->regs + GAM_GDP_VPO_OFFSET));
+ DBGFS_DUMP(GAM_GDP_VPS);
+ gdp_dbg_vps(s, readl(gdp->regs + GAM_GDP_VPS_OFFSET));
+ DBGFS_DUMP(GAM_GDP_PML);
+ DBGFS_DUMP(GAM_GDP_PMP);
+ DBGFS_DUMP(GAM_GDP_SIZE);
+ gdp_dbg_size(s, readl(gdp->regs + GAM_GDP_SIZE_OFFSET));
+ DBGFS_DUMP(GAM_GDP_NVN);
+ gdp_dbg_nvn(s, gdp, readl(gdp->regs + GAM_GDP_NVN_OFFSET));
+ DBGFS_DUMP(GAM_GDP_KEY1);
+ DBGFS_DUMP(GAM_GDP_KEY2);
+ DBGFS_DUMP(GAM_GDP_PPT);
+ gdp_dbg_ppt(s, readl(gdp->regs + GAM_GDP_PPT_OFFSET));
+ DBGFS_DUMP(GAM_GDP_CML);
+ DBGFS_DUMP(GAM_GDP_MST);
+ gdp_dbg_mst(s, readl(gdp->regs + GAM_GDP_MST_OFFSET));
+
+ seq_puts(s, "\n\n");
+ if (!crtc)
+ seq_puts(s, " Not connected to any DRM CRTC\n");
+ else
+ seq_printf(s, " Connected to DRM CRTC #%d (%s)\n",
+ crtc->base.id, sti_mixer_to_str(to_sti_mixer(crtc)));
+
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+ }
+
+ static void gdp_node_dump_node(struct seq_file *s, struct sti_gdp_node *node)
+ {
+ seq_printf(s, "\t@:0x%p", node);
+ seq_printf(s, "\n\tCTL 0x%08X", node->gam_gdp_ctl);
+ gdp_dbg_ctl(s, node->gam_gdp_ctl);
+ seq_printf(s, "\n\tAGC 0x%08X", node->gam_gdp_agc);
+ seq_printf(s, "\n\tVPO 0x%08X", node->gam_gdp_vpo);
+ gdp_dbg_vpo(s, node->gam_gdp_vpo);
+ seq_printf(s, "\n\tVPS 0x%08X", node->gam_gdp_vps);
+ gdp_dbg_vps(s, node->gam_gdp_vps);
+ seq_printf(s, "\n\tPML 0x%08X", node->gam_gdp_pml);
+ seq_printf(s, "\n\tPMP 0x%08X", node->gam_gdp_pmp);
+ seq_printf(s, "\n\tSIZE 0x%08X", node->gam_gdp_size);
+ gdp_dbg_size(s, node->gam_gdp_size);
+ seq_printf(s, "\n\tNVN 0x%08X", node->gam_gdp_nvn);
+ seq_printf(s, "\n\tKEY1 0x%08X", node->gam_gdp_key1);
+ seq_printf(s, "\n\tKEY2 0x%08X", node->gam_gdp_key2);
+ seq_printf(s, "\n\tPPT 0x%08X", node->gam_gdp_ppt);
+ gdp_dbg_ppt(s, node->gam_gdp_ppt);
+ seq_printf(s, "\n\tCML 0x%08X", node->gam_gdp_cml);
+ seq_puts(s, "\n");
+ }
+
+ static int gdp_node_dbg_show(struct seq_file *s, void *arg)
+ {
+ struct drm_info_node *node = s->private;
+ struct sti_gdp *gdp = (struct sti_gdp *)node->info_ent->data;
+ struct drm_device *dev = node->minor->dev;
+ unsigned int b;
+ int ret;
+
+ ret = mutex_lock_interruptible(&dev->struct_mutex);
+ if (ret)
+ return ret;
+
+ for (b = 0; b < GDP_NODE_NB_BANK; b++) {
+ seq_printf(s, "\n%s[%d].top", sti_plane_to_str(&gdp->plane), b);
+ gdp_node_dump_node(s, gdp->node_list[b].top_field);
+ seq_printf(s, "\n%s[%d].btm", sti_plane_to_str(&gdp->plane), b);
+ gdp_node_dump_node(s, gdp->node_list[b].btm_field);
+ }
+
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+ }
+
+ static struct drm_info_list gdp0_debugfs_files[] = {
+ { "gdp0", gdp_dbg_show, 0, NULL },
+ { "gdp0_node", gdp_node_dbg_show, 0, NULL },
+ };
+
+ static struct drm_info_list gdp1_debugfs_files[] = {
+ { "gdp1", gdp_dbg_show, 0, NULL },
+ { "gdp1_node", gdp_node_dbg_show, 0, NULL },
+ };
+
+ static struct drm_info_list gdp2_debugfs_files[] = {
+ { "gdp2", gdp_dbg_show, 0, NULL },
+ { "gdp2_node", gdp_node_dbg_show, 0, NULL },
+ };
+
+ static struct drm_info_list gdp3_debugfs_files[] = {
+ { "gdp3", gdp_dbg_show, 0, NULL },
+ { "gdp3_node", gdp_node_dbg_show, 0, NULL },
+ };
+
+ static int gdp_debugfs_init(struct sti_gdp *gdp, struct drm_minor *minor)
+ {
+ unsigned int i;
+ struct drm_info_list *gdp_debugfs_files;
+ int nb_files;
+
+ switch (gdp->plane.desc) {
+ case STI_GDP_0:
+ gdp_debugfs_files = gdp0_debugfs_files;
+ nb_files = ARRAY_SIZE(gdp0_debugfs_files);
+ break;
+ case STI_GDP_1:
+ gdp_debugfs_files = gdp1_debugfs_files;
+ nb_files = ARRAY_SIZE(gdp1_debugfs_files);
+ break;
+ case STI_GDP_2:
+ gdp_debugfs_files = gdp2_debugfs_files;
+ nb_files = ARRAY_SIZE(gdp2_debugfs_files);
+ break;
+ case STI_GDP_3:
+ gdp_debugfs_files = gdp3_debugfs_files;
+ nb_files = ARRAY_SIZE(gdp3_debugfs_files);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ for (i = 0; i < nb_files; i++)
+ gdp_debugfs_files[i].data = gdp;
+
+ return drm_debugfs_create_files(gdp_debugfs_files,
+ nb_files,
+ minor->debugfs_root, minor);
+ }
+
static int sti_gdp_fourcc2format(int fourcc)
{
switch (fourcc) {
return GDP_RGB565;
case DRM_FORMAT_RGB888:
return GDP_RGB888;
- case DRM_FORMAT_AYUV:
- return GDP_AYCBR8888;
- case DRM_FORMAT_YUV444:
- return GDP_YCBR888;
- case DRM_FORMAT_VYUY:
- return GDP_YCBR422R;
- case DRM_FORMAT_C8:
- return GDP_CLUT8;
}
return -1;
}
switch (format) {
case GDP_ARGB8565:
case GDP_ARGB8888:
- case GDP_AYCBR8888:
case GDP_ABGR8888:
return GAM_GDP_ALPHARANGE_255;
}
*/
static void sti_gdp_disable(struct sti_gdp *gdp)
{
- struct drm_plane *drm_plane = &gdp->plane.drm_plane;
- struct sti_mixer *mixer = to_sti_mixer(drm_plane->crtc);
- struct sti_compositor *compo = dev_get_drvdata(gdp->dev);
unsigned int i;
DRM_DEBUG_DRIVER("%s\n", sti_plane_to_str(&gdp->plane));
gdp->node_list[i].btm_field->gam_gdp_ppt |= GAM_GDP_PPT_IGNORE;
}
- if (sti_vtg_unregister_client(mixer->id == STI_MIXER_MAIN ?
- compo->vtg_main : compo->vtg_aux, &gdp->vtg_field_nb))
+ if (sti_vtg_unregister_client(gdp->vtg, &gdp->vtg_field_nb))
DRM_DEBUG_DRIVER("Warning: cannot unregister VTG notifier\n");
if (gdp->clk_pix)
/* Allocate all the nodes within a single memory page */
size = sizeof(struct sti_gdp_node) *
GDP_NODE_PER_FIELD * GDP_NODE_NB_BANK;
- base = dma_alloc_writecombine(gdp->dev,
- size, &dma_addr, GFP_KERNEL | GFP_DMA);
+ base = dma_alloc_wc(gdp->dev, size, &dma_addr, GFP_KERNEL | GFP_DMA);
if (!base) {
DRM_ERROR("Failed to allocate memory for GDP node\n");
}
}
- static void sti_gdp_atomic_update(struct drm_plane *drm_plane,
- struct drm_plane_state *oldstate)
+ /**
+ * sti_gdp_get_dst
+ * @dev: device
+ * @dst: requested destination size
+ * @src: source size
+ *
+ * Return the cropped / clamped destination size
+ *
+ * RETURNS:
+ * cropped / clamped destination size
+ */
+ static int sti_gdp_get_dst(struct device *dev, int dst, int src)
+ {
+ if (dst == src)
+ return dst;
+
+ if (dst < src) {
+ dev_dbg(dev, "WARNING: GDP scale not supported, will crop\n");
+ return dst;
+ }
+
+ dev_dbg(dev, "WARNING: GDP scale not supported, will clamp\n");
+ return src;
+ }
+
+ static int sti_gdp_atomic_check(struct drm_plane *drm_plane,
+ struct drm_plane_state *state)
{
- struct drm_plane_state *state = drm_plane->state;
struct sti_plane *plane = to_sti_plane(drm_plane);
struct sti_gdp *gdp = to_sti_gdp(plane);
struct drm_crtc *crtc = state->crtc;
struct sti_compositor *compo = dev_get_drvdata(gdp->dev);
struct drm_framebuffer *fb = state->fb;
bool first_prepare = plane->status == STI_PLANE_DISABLED ? true : false;
+ struct drm_crtc_state *crtc_state;
struct sti_mixer *mixer;
struct drm_display_mode *mode;
int dst_x, dst_y, dst_w, dst_h;
int src_x, src_y, src_w, src_h;
+ int format;
+
+ /* no need for further checks if the plane is being disabled */
+ if (!crtc || !fb)
+ return 0;
+
+ mixer = to_sti_mixer(crtc);
+ crtc_state = drm_atomic_get_crtc_state(state->state, crtc);
+ mode = &crtc_state->mode;
+ dst_x = state->crtc_x;
+ dst_y = state->crtc_y;
+ dst_w = clamp_val(state->crtc_w, 0, mode->crtc_hdisplay - dst_x);
+ dst_h = clamp_val(state->crtc_h, 0, mode->crtc_vdisplay - dst_y);
+ /* src_x are in 16.16 format */
+ src_x = state->src_x >> 16;
+ src_y = state->src_y >> 16;
+ src_w = clamp_val(state->src_w >> 16, 0, GAM_GDP_SIZE_MAX);
+ src_h = clamp_val(state->src_h >> 16, 0, GAM_GDP_SIZE_MAX);
+
+ format = sti_gdp_fourcc2format(fb->pixel_format);
+ if (format == -1) {
+ DRM_ERROR("Format not supported by GDP %.4s\n",
+ (char *)&fb->pixel_format);
+ return -EINVAL;
+ }
+
+ if (!drm_fb_cma_get_gem_obj(fb, 0)) {
+ DRM_ERROR("Can't get CMA GEM object for fb\n");
+ return -EINVAL;
+ }
+
+ if (first_prepare) {
+ /* Register gdp callback */
+ gdp->vtg = mixer->id == STI_MIXER_MAIN ?
+ compo->vtg_main : compo->vtg_aux;
+ if (sti_vtg_register_client(gdp->vtg,
+ &gdp->vtg_field_nb, crtc)) {
+ DRM_ERROR("Cannot register VTG notifier\n");
+ return -EINVAL;
+ }
+
+ /* Set and enable gdp clock */
+ if (gdp->clk_pix) {
+ struct clk *clkp;
+ int rate = mode->clock * 1000;
+ int res;
+
+ /*
+ * According to the mixer used, the gdp pixel clock
+ * should have a different parent clock.
+ */
+ if (mixer->id == STI_MIXER_MAIN)
+ clkp = gdp->clk_main_parent;
+ else
+ clkp = gdp->clk_aux_parent;
+
+ if (clkp)
+ clk_set_parent(gdp->clk_pix, clkp);
+
+ res = clk_set_rate(gdp->clk_pix, rate);
+ if (res < 0) {
+ DRM_ERROR("Cannot set rate (%dHz) for gdp\n",
+ rate);
+ return -EINVAL;
+ }
+
+ if (clk_prepare_enable(gdp->clk_pix)) {
+ DRM_ERROR("Failed to prepare/enable gdp\n");
+ return -EINVAL;
+ }
+ }
+ }
+
+ DRM_DEBUG_KMS("CRTC:%d (%s) drm plane:%d (%s)\n",
+ crtc->base.id, sti_mixer_to_str(mixer),
+ drm_plane->base.id, sti_plane_to_str(plane));
+ DRM_DEBUG_KMS("%s dst=(%dx%d)@(%d,%d) - src=(%dx%d)@(%d,%d)\n",
+ sti_plane_to_str(plane),
+ dst_w, dst_h, dst_x, dst_y,
+ src_w, src_h, src_x, src_y);
+
+ return 0;
+ }
+
+ static void sti_gdp_atomic_update(struct drm_plane *drm_plane,
+ struct drm_plane_state *oldstate)
+ {
+ struct drm_plane_state *state = drm_plane->state;
+ struct sti_plane *plane = to_sti_plane(drm_plane);
+ struct sti_gdp *gdp = to_sti_gdp(plane);
+ struct drm_crtc *crtc = state->crtc;
+ struct drm_framebuffer *fb = state->fb;
+ struct drm_display_mode *mode;
+ int dst_x, dst_y, dst_w, dst_h;
+ int src_x, src_y, src_w, src_h;
struct drm_gem_cma_object *cma_obj;
struct sti_gdp_node_list *list;
struct sti_gdp_node_list *curr_list;
int format;
unsigned int depth, bpp;
u32 ydo, xdo, yds, xds;
- int res;
- /* Manage the case where crtc is null (disabled) */
- if (!crtc)
+ if (!crtc || !fb)
return;
- mixer = to_sti_mixer(crtc);
mode = &crtc->mode;
dst_x = state->crtc_x;
dst_y = state->crtc_y;
/* src_x are in 16.16 format */
src_x = state->src_x >> 16;
src_y = state->src_y >> 16;
- src_w = state->src_w >> 16;
- src_h = state->src_h >> 16;
-
- DRM_DEBUG_KMS("CRTC:%d (%s) drm plane:%d (%s)\n",
- crtc->base.id, sti_mixer_to_str(mixer),
- drm_plane->base.id, sti_plane_to_str(plane));
- DRM_DEBUG_KMS("%s dst=(%dx%d)@(%d,%d) - src=(%dx%d)@(%d,%d)\n",
- sti_plane_to_str(plane),
- dst_w, dst_h, dst_x, dst_y,
- src_w, src_h, src_x, src_y);
+ src_w = clamp_val(state->src_w >> 16, 0, GAM_GDP_SIZE_MAX);
+ src_h = clamp_val(state->src_h >> 16, 0, GAM_GDP_SIZE_MAX);
list = sti_gdp_get_free_nodes(gdp);
top_field = list->top_field;
top_field->gam_gdp_agc = GAM_GDP_AGC_FULL_RANGE;
top_field->gam_gdp_ctl = WAIT_NEXT_VSYNC;
format = sti_gdp_fourcc2format(fb->pixel_format);
- if (format == -1) {
- DRM_ERROR("Format not supported by GDP %.4s\n",
- (char *)&fb->pixel_format);
- return;
- }
top_field->gam_gdp_ctl |= format;
top_field->gam_gdp_ctl |= sti_gdp_get_alpharange(format);
top_field->gam_gdp_ppt &= ~GAM_GDP_PPT_IGNORE;
cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
- if (!cma_obj) {
- DRM_ERROR("Can't get CMA GEM object for fb\n");
- return;
- }
DRM_DEBUG_DRIVER("drm FB:%d format:%.4s phys@:0x%lx\n", fb->base.id,
(char *)&fb->pixel_format,
top_field->gam_gdp_pml += src_x * (bpp >> 3);
top_field->gam_gdp_pml += src_y * fb->pitches[0];
- /* input parameters */
- top_field->gam_gdp_pmp = fb->pitches[0];
- top_field->gam_gdp_size = clamp_val(src_h, 0, GAM_GDP_SIZE_MAX) << 16 |
- clamp_val(src_w, 0, GAM_GDP_SIZE_MAX);
-
- /* output parameters */
+ /* output parameters (clamped / cropped) */
+ dst_w = sti_gdp_get_dst(gdp->dev, dst_w, src_w);
+ dst_h = sti_gdp_get_dst(gdp->dev, dst_h, src_h);
ydo = sti_vtg_get_line_number(*mode, dst_y);
yds = sti_vtg_get_line_number(*mode, dst_y + dst_h - 1);
xdo = sti_vtg_get_pixel_number(*mode, dst_x);
top_field->gam_gdp_vpo = (ydo << 16) | xdo;
top_field->gam_gdp_vps = (yds << 16) | xds;
+ /* input parameters */
+ src_w = dst_w;
+ top_field->gam_gdp_pmp = fb->pitches[0];
+ top_field->gam_gdp_size = src_h << 16 | src_w;
+
/* Same content and chained together */
memcpy(btm_field, top_field, sizeof(*btm_field));
top_field->gam_gdp_nvn = list->btm_field_paddr;
btm_field->gam_gdp_pml = top_field->gam_gdp_pml +
fb->pitches[0];
- if (first_prepare) {
- /* Register gdp callback */
- if (sti_vtg_register_client(mixer->id == STI_MIXER_MAIN ?
- compo->vtg_main : compo->vtg_aux,
- &gdp->vtg_field_nb, crtc)) {
- DRM_ERROR("Cannot register VTG notifier\n");
- return;
- }
-
- /* Set and enable gdp clock */
- if (gdp->clk_pix) {
- struct clk *clkp;
- int rate = mode->clock * 1000;
-
- /* According to the mixer used, the gdp pixel clock
- * should have a different parent clock. */
- if (mixer->id == STI_MIXER_MAIN)
- clkp = gdp->clk_main_parent;
- else
- clkp = gdp->clk_aux_parent;
-
- if (clkp)
- clk_set_parent(gdp->clk_pix, clkp);
-
- res = clk_set_rate(gdp->clk_pix, rate);
- if (res < 0) {
- DRM_ERROR("Cannot set rate (%dHz) for gdp\n",
- rate);
- return;
- }
-
- if (clk_prepare_enable(gdp->clk_pix)) {
- DRM_ERROR("Failed to prepare/enable gdp\n");
- return;
- }
- }
- }
-
/* Update the NVN field of the 'right' field of the current GDP node
* (being used by the HW) with the address of the updated ('free') top
* field GDP node.
}
end:
+ sti_plane_update_fps(plane, true, false);
+
plane->status = STI_PLANE_UPDATED;
}
struct drm_plane_state *oldstate)
{
struct sti_plane *plane = to_sti_plane(drm_plane);
- struct sti_mixer *mixer = to_sti_mixer(drm_plane->crtc);
if (!drm_plane->crtc) {
DRM_DEBUG_DRIVER("drm plane:%d not enabled\n",
}
DRM_DEBUG_DRIVER("CRTC:%d (%s) drm plane:%d (%s)\n",
- drm_plane->crtc->base.id, sti_mixer_to_str(mixer),
+ drm_plane->crtc->base.id,
+ sti_mixer_to_str(to_sti_mixer(drm_plane->crtc)),
drm_plane->base.id, sti_plane_to_str(plane));
plane->status = STI_PLANE_DISABLING;
}
static const struct drm_plane_helper_funcs sti_gdp_helpers_funcs = {
+ .atomic_check = sti_gdp_atomic_check,
.atomic_update = sti_gdp_atomic_update,
.atomic_disable = sti_gdp_atomic_disable,
};
sti_plane_init_property(&gdp->plane, type);
+ if (gdp_debugfs_init(gdp, drm_dev->primary))
+ DRM_ERROR("GDP debugfs setup failed\n");
+
return &gdp->plane.drm_plane;
err:
* License terms: GNU General Public License (GPL), version 2
*/
- #include <linux/clk.h>
#include <linux/component.h>
#include <linux/firmware.h>
- #include <linux/module.h>
- #include <linux/platform_device.h>
#include <linux/reset.h>
- #include <drm/drmP.h>
+ #include <drm/drm_atomic.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
* @reset: reset control
* @vtg_nb: notifier to handle VTG Vsync
* @btm_field_pending: is there any bottom field (interlaced frame) to display
- * @curr_field_count: number of field updates
- * @last_field_count: number of field updates since last fps measure
* @hqvdp_cmd: buffer of commands
* @hqvdp_cmd_paddr: physical address of hqvdp_cmd
* @vtg: vtg for main data path
struct reset_control *reset;
struct notifier_block vtg_nb;
bool btm_field_pending;
- unsigned int curr_field_count;
- unsigned int last_field_count;
void *hqvdp_cmd;
- dma_addr_t hqvdp_cmd_paddr;
+ u32 hqvdp_cmd_paddr;
struct sti_vtg *vtg;
bool xp70_initialized;
};
*/
static int sti_hqvdp_get_free_cmd(struct sti_hqvdp *hqvdp)
{
- int curr_cmd, next_cmd;
- dma_addr_t cmd = hqvdp->hqvdp_cmd_paddr;
+ u32 curr_cmd, next_cmd;
+ u32 cmd = hqvdp->hqvdp_cmd_paddr;
int i;
curr_cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD);
*/
static int sti_hqvdp_get_curr_cmd(struct sti_hqvdp *hqvdp)
{
- int curr_cmd;
- dma_addr_t cmd = hqvdp->hqvdp_cmd_paddr;
+ u32 curr_cmd;
+ u32 cmd = hqvdp->hqvdp_cmd_paddr;
unsigned int i;
curr_cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD);
return -1;
}
+ /**
+ * sti_hqvdp_get_next_cmd
+ * @hqvdp: hqvdp structure
+ *
+ * Look for the next hqvdp_cmd that will be used by the FW.
+ *
+ * RETURNS:
+ * the offset of the next command that will be used.
+ * -1 in error cases
+ */
+ static int sti_hqvdp_get_next_cmd(struct sti_hqvdp *hqvdp)
+ {
+ int next_cmd;
+ dma_addr_t cmd = hqvdp->hqvdp_cmd_paddr;
+ unsigned int i;
+
+ next_cmd = readl(hqvdp->regs + HQVDP_MBX_NEXT_CMD);
+
+ for (i = 0; i < NB_VDP_CMD; i++) {
+ if (cmd == next_cmd)
+ return i * sizeof(struct sti_hqvdp_cmd);
+
+ cmd += sizeof(struct sti_hqvdp_cmd);
+ }
+
+ return -1;
+ }
+
+ #define DBGFS_DUMP(reg) seq_printf(s, "\n %-25s 0x%08X", #reg, \
+ readl(hqvdp->regs + reg))
+
+ static const char *hqvdp_dbg_get_lut(u32 *coef)
+ {
+ if (!memcmp(coef, coef_lut_a_legacy, 16))
+ return "LUT A";
+ if (!memcmp(coef, coef_lut_b, 16))
+ return "LUT B";
+ if (!memcmp(coef, coef_lut_c_y_legacy, 16))
+ return "LUT C Y";
+ if (!memcmp(coef, coef_lut_c_c_legacy, 16))
+ return "LUT C C";
+ if (!memcmp(coef, coef_lut_d_y_legacy, 16))
+ return "LUT D Y";
+ if (!memcmp(coef, coef_lut_d_c_legacy, 16))
+ return "LUT D C";
+ if (!memcmp(coef, coef_lut_e_y_legacy, 16))
+ return "LUT E Y";
+ if (!memcmp(coef, coef_lut_e_c_legacy, 16))
+ return "LUT E C";
+ if (!memcmp(coef, coef_lut_f_y_legacy, 16))
+ return "LUT F Y";
+ if (!memcmp(coef, coef_lut_f_c_legacy, 16))
+ return "LUT F C";
+ return "<UNKNOWN>";
+ }
+
+ static void hqvdp_dbg_dump_cmd(struct seq_file *s, struct sti_hqvdp_cmd *c)
+ {
+ int src_w, src_h, dst_w, dst_h;
+
+ seq_puts(s, "\n\tTOP:");
+ seq_printf(s, "\n\t %-20s 0x%08X", "Config", c->top.config);
+ switch (c->top.config) {
+ case TOP_CONFIG_PROGRESSIVE:
+ seq_puts(s, "\tProgressive");
+ break;
+ case TOP_CONFIG_INTER_TOP:
+ seq_puts(s, "\tInterlaced, top field");
+ break;
+ case TOP_CONFIG_INTER_BTM:
+ seq_puts(s, "\tInterlaced, bottom field");
+ break;
+ default:
+ seq_puts(s, "\t<UNKNOWN>");
+ break;
+ }
+
+ seq_printf(s, "\n\t %-20s 0x%08X", "MemFormat", c->top.mem_format);
+ seq_printf(s, "\n\t %-20s 0x%08X", "CurrentY", c->top.current_luma);
+ seq_printf(s, "\n\t %-20s 0x%08X", "CurrentC", c->top.current_chroma);
+ seq_printf(s, "\n\t %-20s 0x%08X", "YSrcPitch", c->top.luma_src_pitch);
+ seq_printf(s, "\n\t %-20s 0x%08X", "CSrcPitch",
+ c->top.chroma_src_pitch);
+ seq_printf(s, "\n\t %-20s 0x%08X", "InputFrameSize",
+ c->top.input_frame_size);
+ seq_printf(s, "\t%dx%d",
+ c->top.input_frame_size & 0x0000FFFF,
+ c->top.input_frame_size >> 16);
+ seq_printf(s, "\n\t %-20s 0x%08X", "InputViewportSize",
+ c->top.input_viewport_size);
+ src_w = c->top.input_viewport_size & 0x0000FFFF;
+ src_h = c->top.input_viewport_size >> 16;
+ seq_printf(s, "\t%dx%d", src_w, src_h);
+
+ seq_puts(s, "\n\tHVSRC:");
+ seq_printf(s, "\n\t %-20s 0x%08X", "OutputPictureSize",
+ c->hvsrc.output_picture_size);
+ dst_w = c->hvsrc.output_picture_size & 0x0000FFFF;
+ dst_h = c->hvsrc.output_picture_size >> 16;
+ seq_printf(s, "\t%dx%d", dst_w, dst_h);
+ seq_printf(s, "\n\t %-20s 0x%08X", "ParamCtrl", c->hvsrc.param_ctrl);
+
+ seq_printf(s, "\n\t %-20s %s", "yh_coef",
+ hqvdp_dbg_get_lut(c->hvsrc.yh_coef));
+ seq_printf(s, "\n\t %-20s %s", "ch_coef",
+ hqvdp_dbg_get_lut(c->hvsrc.ch_coef));
+ seq_printf(s, "\n\t %-20s %s", "yv_coef",
+ hqvdp_dbg_get_lut(c->hvsrc.yv_coef));
+ seq_printf(s, "\n\t %-20s %s", "cv_coef",
+ hqvdp_dbg_get_lut(c->hvsrc.cv_coef));
+
+ seq_printf(s, "\n\t %-20s", "ScaleH");
+ if (dst_w > src_w)
+ seq_printf(s, " %d/1", dst_w / src_w);
+ else
+ seq_printf(s, " 1/%d", src_w / dst_w);
+
+ seq_printf(s, "\n\t %-20s", "tScaleV");
+ if (dst_h > src_h)
+ seq_printf(s, " %d/1", dst_h / src_h);
+ else
+ seq_printf(s, " 1/%d", src_h / dst_h);
+
+ seq_puts(s, "\n\tCSDI:");
+ seq_printf(s, "\n\t %-20s 0x%08X\t", "Config", c->csdi.config);
+ switch (c->csdi.config) {
+ case CSDI_CONFIG_PROG:
+ seq_puts(s, "Bypass");
+ break;
+ case CSDI_CONFIG_INTER_DIR:
+ seq_puts(s, "Deinterlace, directional");
+ break;
+ default:
+ seq_puts(s, "<UNKNOWN>");
+ break;
+ }
+
+ seq_printf(s, "\n\t %-20s 0x%08X", "Config2", c->csdi.config2);
+ seq_printf(s, "\n\t %-20s 0x%08X", "DcdiConfig", c->csdi.dcdi_config);
+ }
+
+ static int hqvdp_dbg_show(struct seq_file *s, void *data)
+ {
+ struct drm_info_node *node = s->private;
+ struct sti_hqvdp *hqvdp = (struct sti_hqvdp *)node->info_ent->data;
+ struct drm_device *dev = node->minor->dev;
+ int cmd, cmd_offset, infoxp70;
+ void *virt;
+ int ret;
+
+ ret = mutex_lock_interruptible(&dev->struct_mutex);
+ if (ret)
+ return ret;
+
+ seq_printf(s, "%s: (vaddr = 0x%p)",
+ sti_plane_to_str(&hqvdp->plane), hqvdp->regs);
+
+ DBGFS_DUMP(HQVDP_MBX_IRQ_TO_XP70);
+ DBGFS_DUMP(HQVDP_MBX_INFO_HOST);
+ DBGFS_DUMP(HQVDP_MBX_IRQ_TO_HOST);
+ DBGFS_DUMP(HQVDP_MBX_INFO_XP70);
+ infoxp70 = readl(hqvdp->regs + HQVDP_MBX_INFO_XP70);
+ seq_puts(s, "\tFirmware state: ");
+ if (infoxp70 & INFO_XP70_FW_READY)
+ seq_puts(s, "idle and ready");
+ else if (infoxp70 & INFO_XP70_FW_PROCESSING)
+ seq_puts(s, "processing a picture");
+ else if (infoxp70 & INFO_XP70_FW_INITQUEUES)
+ seq_puts(s, "programming queues");
+ else
+ seq_puts(s, "NOT READY");
+
+ DBGFS_DUMP(HQVDP_MBX_SW_RESET_CTRL);
+ DBGFS_DUMP(HQVDP_MBX_STARTUP_CTRL1);
+ if (readl(hqvdp->regs + HQVDP_MBX_STARTUP_CTRL1)
+ & STARTUP_CTRL1_RST_DONE)
+ seq_puts(s, "\tReset is done");
+ else
+ seq_puts(s, "\tReset is NOT done");
+ DBGFS_DUMP(HQVDP_MBX_STARTUP_CTRL2);
+ if (readl(hqvdp->regs + HQVDP_MBX_STARTUP_CTRL2)
+ & STARTUP_CTRL2_FETCH_EN)
+ seq_puts(s, "\tFetch is enabled");
+ else
+ seq_puts(s, "\tFetch is NOT enabled");
+ DBGFS_DUMP(HQVDP_MBX_GP_STATUS);
+ DBGFS_DUMP(HQVDP_MBX_NEXT_CMD);
+ DBGFS_DUMP(HQVDP_MBX_CURRENT_CMD);
+ DBGFS_DUMP(HQVDP_MBX_SOFT_VSYNC);
+ if (!(readl(hqvdp->regs + HQVDP_MBX_SOFT_VSYNC) & 3))
+ seq_puts(s, "\tHW Vsync");
+ else
+ seq_puts(s, "\tSW Vsync ?!?!");
+
+ /* Last command */
+ cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD);
+ cmd_offset = sti_hqvdp_get_curr_cmd(hqvdp);
+ if (cmd_offset == -1) {
+ seq_puts(s, "\n\n Last command: unknown");
+ } else {
+ virt = hqvdp->hqvdp_cmd + cmd_offset;
+ seq_printf(s, "\n\n Last command: address @ 0x%x (0x%p)",
+ cmd, virt);
+ hqvdp_dbg_dump_cmd(s, (struct sti_hqvdp_cmd *)virt);
+ }
+
+ /* Next command */
+ cmd = readl(hqvdp->regs + HQVDP_MBX_NEXT_CMD);
+ cmd_offset = sti_hqvdp_get_next_cmd(hqvdp);
+ if (cmd_offset == -1) {
+ seq_puts(s, "\n\n Next command: unknown");
+ } else {
+ virt = hqvdp->hqvdp_cmd + cmd_offset;
+ seq_printf(s, "\n\n Next command address: @ 0x%x (0x%p)",
+ cmd, virt);
+ hqvdp_dbg_dump_cmd(s, (struct sti_hqvdp_cmd *)virt);
+ }
+
+ seq_puts(s, "\n");
+
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+ }
+
+ static struct drm_info_list hqvdp_debugfs_files[] = {
+ { "hqvdp", hqvdp_dbg_show, 0, NULL },
+ };
+
+ static int hqvdp_debugfs_init(struct sti_hqvdp *hqvdp, struct drm_minor *minor)
+ {
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(hqvdp_debugfs_files); i++)
+ hqvdp_debugfs_files[i].data = hqvdp;
+
+ return drm_debugfs_create_files(hqvdp_debugfs_files,
+ ARRAY_SIZE(hqvdp_debugfs_files),
+ minor->debugfs_root, minor);
+ }
+
/**
* sti_hqvdp_update_hvsrc
* @orient: horizontal or vertical
btm_cmd_offset = sti_hqvdp_get_free_cmd(hqvdp);
top_cmd_offest = sti_hqvdp_get_curr_cmd(hqvdp);
if ((btm_cmd_offset == -1) || (top_cmd_offest == -1)) {
- DRM_ERROR("Cannot get cmds, skip btm field\n");
+ DRM_DEBUG_DRIVER("Warning: no cmd, will skip field\n");
return -EBUSY;
}
writel(hqvdp->hqvdp_cmd_paddr + btm_cmd_offset,
hqvdp->regs + HQVDP_MBX_NEXT_CMD);
- hqvdp->curr_field_count++;
hqvdp->btm_field_pending = false;
dev_dbg(hqvdp->dev, "%s Posted command:0x%x\n",
__func__, hqvdp->hqvdp_cmd_paddr);
+
+ sti_plane_update_fps(&hqvdp->plane, false, true);
}
return 0;
static void sti_hqvdp_init(struct sti_hqvdp *hqvdp)
{
int size;
+ dma_addr_t dma_addr;
hqvdp->vtg_nb.notifier_call = sti_hqvdp_vtg_cb;
/* Allocate memory for the VDP commands */
size = NB_VDP_CMD * sizeof(struct sti_hqvdp_cmd);
- hqvdp->hqvdp_cmd = dma_alloc_writecombine(hqvdp->dev, size,
- &dma_addr,
- GFP_KERNEL | GFP_DMA);
+ hqvdp->hqvdp_cmd = dma_alloc_wc(hqvdp->dev, size,
- &hqvdp->hqvdp_cmd_paddr,
++ &dma_addr,
+ GFP_KERNEL | GFP_DMA);
if (!hqvdp->hqvdp_cmd) {
DRM_ERROR("Failed to allocate memory for VDP cmd\n");
return;
}
+ hqvdp->hqvdp_cmd_paddr = (u32)dma_addr;
memset(hqvdp->hqvdp_cmd, 0, size);
}
DRM_DEBUG_DRIVER("\n");
if (hqvdp->xp70_initialized) {
- DRM_INFO("HQVDP XP70 already initialized\n");
+ DRM_DEBUG_DRIVER("HQVDP XP70 already initialized\n");
return;
}
release_firmware(firmware);
}
- static void sti_hqvdp_atomic_update(struct drm_plane *drm_plane,
- struct drm_plane_state *oldstate)
+ static int sti_hqvdp_atomic_check(struct drm_plane *drm_plane,
+ struct drm_plane_state *state)
{
- struct drm_plane_state *state = drm_plane->state;
struct sti_plane *plane = to_sti_plane(drm_plane);
struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane);
struct drm_crtc *crtc = state->crtc;
- struct sti_mixer *mixer = to_sti_mixer(crtc);
struct drm_framebuffer *fb = state->fb;
- struct drm_display_mode *mode = &crtc->mode;
- int dst_x = state->crtc_x;
- int dst_y = state->crtc_y;
- int dst_w = clamp_val(state->crtc_w, 0, mode->crtc_hdisplay - dst_x);
- int dst_h = clamp_val(state->crtc_h, 0, mode->crtc_vdisplay - dst_y);
- /* src_x are in 16.16 format */
- int src_x = state->src_x >> 16;
- int src_y = state->src_y >> 16;
- int src_w = state->src_w >> 16;
- int src_h = state->src_h >> 16;
bool first_prepare = plane->status == STI_PLANE_DISABLED ? true : false;
- struct drm_gem_cma_object *cma_obj;
- struct sti_hqvdp_cmd *cmd;
- int scale_h, scale_v;
- int cmd_offset;
+ struct drm_crtc_state *crtc_state;
+ struct drm_display_mode *mode;
+ int dst_x, dst_y, dst_w, dst_h;
+ int src_x, src_y, src_w, src_h;
+
+ /* no need for further checks if the plane is being disabled */
+ if (!crtc || !fb)
+ return 0;
+
+ crtc_state = drm_atomic_get_crtc_state(state->state, crtc);
+ mode = &crtc_state->mode;
+ dst_x = state->crtc_x;
+ dst_y = state->crtc_y;
+ dst_w = clamp_val(state->crtc_w, 0, mode->crtc_hdisplay - dst_x);
+ dst_h = clamp_val(state->crtc_h, 0, mode->crtc_vdisplay - dst_y);
+ /* src_x are in 16.16 format */
+ src_x = state->src_x >> 16;
+ src_y = state->src_y >> 16;
+ src_w = state->src_w >> 16;
+ src_h = state->src_h >> 16;
+
+ if (!sti_hqvdp_check_hw_scaling(hqvdp, mode,
+ src_w, src_h,
+ dst_w, dst_h)) {
+ DRM_ERROR("Scaling beyond HW capabilities\n");
+ return -EINVAL;
+ }
+
+ if (!drm_fb_cma_get_gem_obj(fb, 0)) {
+ DRM_ERROR("Can't get CMA GEM object for fb\n");
+ return -EINVAL;
+ }
+
+ /*
+ * Input / output size
+ * Align to upper even value
+ */
+ dst_w = ALIGN(dst_w, 2);
+ dst_h = ALIGN(dst_h, 2);
+
+ if ((src_w > MAX_WIDTH) || (src_w < MIN_WIDTH) ||
+ (src_h > MAX_HEIGHT) || (src_h < MIN_HEIGHT) ||
+ (dst_w > MAX_WIDTH) || (dst_w < MIN_WIDTH) ||
+ (dst_h > MAX_HEIGHT) || (dst_h < MIN_HEIGHT)) {
+ DRM_ERROR("Invalid in/out size %dx%d -> %dx%d\n",
+ src_w, src_h,
+ dst_w, dst_h);
+ return -EINVAL;
+ }
+
+ if (first_prepare) {
+ /* Start HQVDP XP70 coprocessor */
+ sti_hqvdp_start_xp70(hqvdp);
+
+ /* Prevent VTG shutdown */
+ if (clk_prepare_enable(hqvdp->clk_pix_main)) {
+ DRM_ERROR("Failed to prepare/enable pix main clk\n");
+ return -EINVAL;
+ }
+
+ /* Register VTG Vsync callback to handle bottom fields */
+ if (sti_vtg_register_client(hqvdp->vtg,
+ &hqvdp->vtg_nb,
+ crtc)) {
+ DRM_ERROR("Cannot register VTG notifier\n");
+ return -EINVAL;
+ }
+ }
DRM_DEBUG_KMS("CRTC:%d (%s) drm plane:%d (%s)\n",
- crtc->base.id, sti_mixer_to_str(mixer),
+ crtc->base.id, sti_mixer_to_str(to_sti_mixer(crtc)),
drm_plane->base.id, sti_plane_to_str(plane));
DRM_DEBUG_KMS("%s dst=(%dx%d)@(%d,%d) - src=(%dx%d)@(%d,%d)\n",
sti_plane_to_str(plane),
dst_w, dst_h, dst_x, dst_y,
src_w, src_h, src_x, src_y);
+ return 0;
+ }
+
+ static void sti_hqvdp_atomic_update(struct drm_plane *drm_plane,
+ struct drm_plane_state *oldstate)
+ {
+ struct drm_plane_state *state = drm_plane->state;
+ struct sti_plane *plane = to_sti_plane(drm_plane);
+ struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane);
+ struct drm_crtc *crtc = state->crtc;
+ struct drm_framebuffer *fb = state->fb;
+ struct drm_display_mode *mode;
+ int dst_x, dst_y, dst_w, dst_h;
+ int src_x, src_y, src_w, src_h;
+ struct drm_gem_cma_object *cma_obj;
+ struct sti_hqvdp_cmd *cmd;
+ int scale_h, scale_v;
+ int cmd_offset;
+
+ if (!crtc || !fb)
+ return;
+
+ mode = &crtc->mode;
+ dst_x = state->crtc_x;
+ dst_y = state->crtc_y;
+ dst_w = clamp_val(state->crtc_w, 0, mode->crtc_hdisplay - dst_x);
+ dst_h = clamp_val(state->crtc_h, 0, mode->crtc_vdisplay - dst_y);
+ /* src_x are in 16.16 format */
+ src_x = state->src_x >> 16;
+ src_y = state->src_y >> 16;
+ src_w = state->src_w >> 16;
+ src_h = state->src_h >> 16;
+
cmd_offset = sti_hqvdp_get_free_cmd(hqvdp);
if (cmd_offset == -1) {
- DRM_ERROR("No available hqvdp_cmd now\n");
+ DRM_DEBUG_DRIVER("Warning: no cmd, will skip frame\n");
return;
}
cmd = hqvdp->hqvdp_cmd + cmd_offset;
- if (!sti_hqvdp_check_hw_scaling(hqvdp, mode,
- src_w, src_h,
- dst_w, dst_h)) {
- DRM_ERROR("Scaling beyond HW capabilities\n");
- return;
- }
-
/* Static parameters, defaulting to progressive mode */
cmd->top.config = TOP_CONFIG_PROGRESSIVE;
cmd->top.mem_format = TOP_MEM_FORMAT_DFLT;
cmd->iqi.pxf_conf = IQI_PXF_CONF_DFLT;
cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
- if (!cma_obj) {
- DRM_ERROR("Can't get CMA GEM object for fb\n");
- return;
- }
DRM_DEBUG_DRIVER("drm FB:%d format:%.4s phys@:0x%lx\n", fb->base.id,
(char *)&fb->pixel_format,
dst_w = ALIGN(dst_w, 2);
dst_h = ALIGN(dst_h, 2);
- if ((src_w > MAX_WIDTH) || (src_w < MIN_WIDTH) ||
- (src_h > MAX_HEIGHT) || (src_h < MIN_HEIGHT) ||
- (dst_w > MAX_WIDTH) || (dst_w < MIN_WIDTH) ||
- (dst_h > MAX_HEIGHT) || (dst_h < MIN_HEIGHT)) {
- DRM_ERROR("Invalid in/out size %dx%d -> %dx%d\n",
- src_w, src_h,
- dst_w, dst_h);
- return;
- }
-
cmd->top.input_viewport_size = src_h << 16 | src_w;
cmd->top.input_frame_size = src_h << 16 | src_w;
cmd->hvsrc.output_picture_size = dst_h << 16 | dst_w;
scale_v = SCALE_FACTOR * dst_h / src_h;
sti_hqvdp_update_hvsrc(HVSRC_VERT, scale_v, &cmd->hvsrc);
- if (first_prepare) {
- /* Start HQVDP XP70 coprocessor */
- sti_hqvdp_start_xp70(hqvdp);
-
- /* Prevent VTG shutdown */
- if (clk_prepare_enable(hqvdp->clk_pix_main)) {
- DRM_ERROR("Failed to prepare/enable pix main clk\n");
- return;
- }
-
- /* Register VTG Vsync callback to handle bottom fields */
- if (sti_vtg_register_client(hqvdp->vtg,
- &hqvdp->vtg_nb,
- crtc)) {
- DRM_ERROR("Cannot register VTG notifier\n");
- return;
- }
- }
-
writel(hqvdp->hqvdp_cmd_paddr + cmd_offset,
hqvdp->regs + HQVDP_MBX_NEXT_CMD);
- hqvdp->curr_field_count++;
-
/* Interlaced : get ready to display the bottom field at next Vsync */
if (fb->flags & DRM_MODE_FB_INTERLACED)
hqvdp->btm_field_pending = true;
dev_dbg(hqvdp->dev, "%s Posted command:0x%x\n",
__func__, hqvdp->hqvdp_cmd_paddr + cmd_offset);
+ sti_plane_update_fps(plane, true, true);
+
plane->status = STI_PLANE_UPDATED;
}
struct drm_plane_state *oldstate)
{
struct sti_plane *plane = to_sti_plane(drm_plane);
- struct sti_mixer *mixer = to_sti_mixer(drm_plane->crtc);
if (!drm_plane->crtc) {
DRM_DEBUG_DRIVER("drm plane:%d not enabled\n",
}
DRM_DEBUG_DRIVER("CRTC:%d (%s) drm plane:%d (%s)\n",
- drm_plane->crtc->base.id, sti_mixer_to_str(mixer),
+ drm_plane->crtc->base.id,
+ sti_mixer_to_str(to_sti_mixer(drm_plane->crtc)),
drm_plane->base.id, sti_plane_to_str(plane));
plane->status = STI_PLANE_DISABLING;
}
static const struct drm_plane_helper_funcs sti_hqvdp_helpers_funcs = {
+ .atomic_check = sti_hqvdp_atomic_check,
.atomic_update = sti_hqvdp_atomic_update,
.atomic_disable = sti_hqvdp_atomic_disable,
};
sti_plane_init_property(&hqvdp->plane, DRM_PLANE_TYPE_OVERLAY);
+ if (hqvdp_debugfs_init(hqvdp, drm_dev->primary))
+ DRM_ERROR("HQVDP debugfs setup failed\n");
+
return &hqvdp->plane.drm_plane;
}
vma->vm_flags &= ~VM_PFNMAP;
vma->vm_pgoff = 0;
- ret = dma_mmap_writecombine(bo->base.base.dev->dev, vma,
- bo->base.vaddr, bo->base.paddr,
- vma->vm_end - vma->vm_start);
+ ret = dma_mmap_wc(bo->base.base.dev->dev, vma, bo->base.vaddr,
+ bo->base.paddr, vma->vm_end - vma->vm_start);
if (ret)
drm_gem_vm_close(vma);
if (IS_ERR(bo))
return PTR_ERR(bo);
- ret = copy_from_user(bo->base.vaddr,
+ if (copy_from_user(bo->base.vaddr,
(void __user *)(uintptr_t)args->data,
- args->size);
- if (ret != 0)
+ args->size)) {
+ ret = -EFAULT;
goto fail;
+ }
/* Clear the rest of the memory from allocating from the BO
* cache.
*/
return 0;
}
- static unsigned int do_relocs(struct host1x_job *job, struct host1x_bo *cmdbuf)
+ static int do_relocs(struct host1x_job *job, struct host1x_bo *cmdbuf)
{
int i = 0;
u32 last_page = ~0;
size += g->words * sizeof(u32);
}
- job->gather_copy_mapped = dma_alloc_writecombine(dev, size,
- &job->gather_copy,
- GFP_KERNEL);
+ job->gather_copy_mapped = dma_alloc_wc(dev, size, &job->gather_copy,
+ GFP_KERNEL);
if (!job->gather_copy_mapped) {
job->gather_copy_mapped = NULL;
return -ENOMEM;
job->num_unpins = 0;
if (job->gather_copy_size)
- dma_free_writecombine(job->channel->dev, job->gather_copy_size,
- job->gather_copy_mapped,
- job->gather_copy);
+ dma_free_wc(job->channel->dev, job->gather_copy_size,
+ job->gather_copy_mapped, job->gather_copy);
}
EXPORT_SYMBOL(host1x_job_unpin);
* memory coming from the heaps is ready for dma, ie if it has a
* cached mapping that mapping has been invalidated
*/
- for_each_sg(buffer->sg_table->sgl, sg, buffer->sg_table->nents, i)
+ for_each_sg(buffer->sg_table->sgl, sg, buffer->sg_table->nents, i) {
sg_dma_address(sg) = sg_phys(sg);
+ sg_dma_len(sg) = sg->length;
+ }
mutex_lock(&dev->buffer_lock);
ion_buffer_add(dev, buffer);
mutex_unlock(&dev->buffer_lock);
kref_get(&handle->ref);
}
-static int ion_handle_put(struct ion_handle *handle)
+static int ion_handle_put_nolock(struct ion_handle *handle)
+{
+ int ret;
+
+ ret = kref_put(&handle->ref, ion_handle_destroy);
+
+ return ret;
+}
+
+int ion_handle_put(struct ion_handle *handle)
{
struct ion_client *client = handle->client;
int ret;
mutex_lock(&client->lock);
- ret = kref_put(&handle->ref, ion_handle_destroy);
+ ret = ion_handle_put_nolock(handle);
mutex_unlock(&client->lock);
return ret;
return ERR_PTR(-EINVAL);
}
-static struct ion_handle *ion_handle_get_by_id(struct ion_client *client,
+static struct ion_handle *ion_handle_get_by_id_nolock(struct ion_client *client,
int id)
{
struct ion_handle *handle;
- mutex_lock(&client->lock);
handle = idr_find(&client->idr, id);
if (handle)
ion_handle_get(handle);
- mutex_unlock(&client->lock);
return handle ? handle : ERR_PTR(-EINVAL);
}
+struct ion_handle *ion_handle_get_by_id(struct ion_client *client,
+ int id)
+{
+ struct ion_handle *handle;
+
+ mutex_lock(&client->lock);
+ handle = ion_handle_get_by_id_nolock(client, id);
+ mutex_unlock(&client->lock);
+
+ return handle;
+}
+
static bool ion_handle_validate(struct ion_client *client,
struct ion_handle *handle)
{
}
EXPORT_SYMBOL(ion_alloc);
-void ion_free(struct ion_client *client, struct ion_handle *handle)
+static void ion_free_nolock(struct ion_client *client, struct ion_handle *handle)
{
bool valid_handle;
BUG_ON(client != handle->client);
- mutex_lock(&client->lock);
valid_handle = ion_handle_validate(client, handle);
if (!valid_handle) {
WARN(1, "%s: invalid handle passed to free.\n", __func__);
- mutex_unlock(&client->lock);
return;
}
+ ion_handle_put_nolock(handle);
+}
+
+void ion_free(struct ion_client *client, struct ion_handle *handle)
+{
+ BUG_ON(client != handle->client);
+
+ mutex_lock(&client->lock);
+ ion_free_nolock(client, handle);
mutex_unlock(&client->lock);
- ion_handle_put(handle);
}
EXPORT_SYMBOL(ion_free);
}
EXPORT_SYMBOL(ion_unmap_kernel);
+static struct mutex debugfs_mutex;
+static struct rb_root *ion_root_client;
+static int is_client_alive(struct ion_client *client)
+{
+ struct rb_node *node;
+ struct ion_client *tmp;
+ struct ion_device *dev;
+
+ node = ion_root_client->rb_node;
+ dev = container_of(ion_root_client, struct ion_device, clients);
+
+ down_read(&dev->lock);
+ while (node) {
+ tmp = rb_entry(node, struct ion_client, node);
+ if (client < tmp) {
+ node = node->rb_left;
+ } else if (client > tmp) {
+ node = node->rb_right;
+ } else {
+ up_read(&dev->lock);
+ return 1;
+ }
+ }
+
+ up_read(&dev->lock);
+ return 0;
+}
+
static int ion_debug_client_show(struct seq_file *s, void *unused)
{
struct ion_client *client = s->private;
const char *names[ION_NUM_HEAP_IDS] = {NULL};
int i;
+ mutex_lock(&debugfs_mutex);
+ if (!is_client_alive(client)) {
+ seq_printf(s, "ion_client 0x%p dead, can't dump its buffers\n",
+ client);
+ mutex_unlock(&debugfs_mutex);
+ return 0;
+ }
+
mutex_lock(&client->lock);
for (n = rb_first(&client->handles); n; n = rb_next(n)) {
struct ion_handle *handle = rb_entry(n, struct ion_handle,
sizes[id] += handle->buffer->size;
}
mutex_unlock(&client->lock);
+ mutex_unlock(&debugfs_mutex);
seq_printf(s, "%16.16s: %16.16s\n", "heap_name", "size_in_bytes");
for (i = 0; i < ION_NUM_HEAP_IDS; i++) {
struct rb_node *n;
pr_debug("%s: %d\n", __func__, __LINE__);
+ mutex_lock(&debugfs_mutex);
while ((n = rb_first(&client->handles))) {
struct ion_handle *handle = rb_entry(n, struct ion_handle,
node);
kfree(client->display_name);
kfree(client->name);
kfree(client);
+ mutex_unlock(&debugfs_mutex);
}
EXPORT_SYMBOL(ion_client_destroy);
{
}
- static int ion_dma_buf_begin_cpu_access(struct dma_buf *dmabuf, size_t start,
- size_t len,
+ static int ion_dma_buf_begin_cpu_access(struct dma_buf *dmabuf,
enum dma_data_direction direction)
{
struct ion_buffer *buffer = dmabuf->priv;
return PTR_ERR_OR_ZERO(vaddr);
}
- static void ion_dma_buf_end_cpu_access(struct dma_buf *dmabuf, size_t start,
- size_t len,
+ static void ion_dma_buf_end_cpu_access(struct dma_buf *dmabuf,
enum dma_data_direction direction)
{
struct ion_buffer *buffer = dmabuf->priv;
}
EXPORT_SYMBOL(ion_share_dma_buf_fd);
-struct ion_handle *ion_import_dma_buf(struct ion_client *client, int fd)
+struct ion_handle *ion_import_dma_buf(struct ion_client *client,
+ struct dma_buf *dmabuf)
{
- struct dma_buf *dmabuf;
struct ion_buffer *buffer;
struct ion_handle *handle;
int ret;
- dmabuf = dma_buf_get(fd);
- if (IS_ERR(dmabuf))
- return ERR_CAST(dmabuf);
/* if this memory came from ion */
if (dmabuf->ops != &dma_buf_ops) {
pr_err("%s: can not import dmabuf from another exporter\n",
__func__);
- dma_buf_put(dmabuf);
return ERR_PTR(-EINVAL);
}
buffer = dmabuf->priv;
}
end:
- dma_buf_put(dmabuf);
return handle;
}
EXPORT_SYMBOL(ion_import_dma_buf);
+struct ion_handle *ion_import_dma_buf_fd(struct ion_client *client, int fd)
+{
+ struct dma_buf *dmabuf;
+ struct ion_handle *handle;
+
+ dmabuf = dma_buf_get(fd);
+ if (IS_ERR(dmabuf))
+ return ERR_CAST(dmabuf);
+
+ handle = ion_import_dma_buf(client, dmabuf);
+ dma_buf_put(dmabuf);
+ return handle;
+}
+EXPORT_SYMBOL(ion_import_dma_buf_fd);
+
static int ion_sync_for_device(struct ion_client *client, int fd)
{
struct dma_buf *dmabuf;
{
struct ion_handle *handle;
- handle = ion_handle_get_by_id(client, data.handle.handle);
- if (IS_ERR(handle))
+ mutex_lock(&client->lock);
+ handle = ion_handle_get_by_id_nolock(client, data.handle.handle);
+ if (IS_ERR(handle)) {
+ mutex_unlock(&client->lock);
return PTR_ERR(handle);
- ion_free(client, handle);
- ion_handle_put(handle);
+ }
+ ion_free_nolock(client, handle);
+ ion_handle_put_nolock(handle);
+ mutex_unlock(&client->lock);
break;
}
case ION_IOC_SHARE:
{
struct ion_handle *handle;
- handle = ion_import_dma_buf(client, data.fd.fd);
+ handle = ion_import_dma_buf_fd(client, data.fd.fd);
if (IS_ERR(handle))
ret = PTR_ERR(handle);
else
seq_printf(s, "%16s %16s %16s\n", "client", "pid", "size");
seq_puts(s, "----------------------------------------------------\n");
+ mutex_lock(&debugfs_mutex);
for (n = rb_first(&dev->clients); n; n = rb_next(n)) {
struct ion_client *client = rb_entry(n, struct ion_client,
node);
client->pid, size);
}
}
+ mutex_unlock(&debugfs_mutex);
+
seq_puts(s, "----------------------------------------------------\n");
seq_puts(s, "orphaned allocations (info is from last known client):\n");
mutex_lock(&dev->buffer_lock);
struct shrink_control sc;
int objs;
- sc.gfp_mask = -1;
+ sc.gfp_mask = GFP_HIGHUSER;
sc.nr_to_scan = val;
if (!val) {
struct shrink_control sc;
int objs;
- sc.gfp_mask = -1;
+ sc.gfp_mask = GFP_HIGHUSER;
sc.nr_to_scan = 0;
objs = heap->shrinker.count_objects(&heap->shrinker, &sc);
init_rwsem(&idev->lock);
plist_head_init(&idev->heaps);
idev->clients = RB_ROOT;
+ ion_root_client = &idev->clients;
+ mutex_init(&debugfs_mutex);
return idev;
}
EXPORT_SYMBOL(ion_device_create);
DEFINE_SPINLOCK(swap_lock);
static unsigned int nr_swapfiles;
atomic_long_t nr_swap_pages;
+ /*
+ * Some modules use swappable objects and may try to swap them out under
+ * memory pressure (via the shrinker). Before doing so, they may wish to
+ * check to see if any swap space is available.
+ */
+ EXPORT_SYMBOL_GPL(nr_swap_pages);
/* protected with swap_lock. reading in vm_swap_full() doesn't need lock */
long total_swap_pages;
static int least_priority;
(swap_flags & SWAP_FLAG_PRIO_MASK) >> SWAP_FLAG_PRIO_SHIFT;
enable_swap_info(p, prio, swap_map, cluster_info, frontswap_map);
- pr_info("Adding %uk swap on %s. "
- "Priority:%d extents:%d across:%lluk %s%s%s%s%s\n",
+ pr_info("Adding %uk swap on %s. Priority:%d extents:%d across:%lluk %s%s%s%s%s\n",
p->pages<<(PAGE_SHIFT-10), name->name, p->prio,
nr_extents, (unsigned long long)span<<(PAGE_SHIFT-10),
(p->flags & SWP_SOLIDSTATE) ? "SS" : "",
projects / linux-2.6-block.git / commitdiff