linux-2.6-block.git
6 years agoarm64: dts: renesas: Add support for Salvator-XS with R-Car M3-N
Takeshi Kihara [Mon, 19 Feb 2018 18:20:55 +0000 (19:20 +0100)]
arm64: dts: renesas: Add support for Salvator-XS with R-Car M3-N

Add initial support for the Renesas Salvator-XS (Salvator-X 2nd version)
development board equipped with an R-Car M3-N SiP.

Most features are enabled through the shared salvator-xs.dtsi board
description.  The memory configuration is specific to the M3-N SiP.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
[geert: Switch to SPDX-License-Identifier, update patch description]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77965: Move usb2_phy1 up
Jacopo Mondi [Fri, 23 Feb 2018 13:40:59 +0000 (14:40 +0100)]
arm64: dts: renesas: r8a77965: Move usb2_phy1 up

Move "usb2_ph1" place-holder device node next to "usb2_phy0" one.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77965: Add #interrupt-cells property
Jacopo Mondi [Fri, 23 Feb 2018 13:40:58 +0000 (14:40 +0100)]
arm64: dts: renesas: r8a77965: Add #interrupt-cells property

Add "#interrupt-cells" property and "interrupt-controller" label to
"interrupt-controller@e61c0000" device node.

This silences the following DTC compiler warnings:
Warning (interrupts_property): Missing interrupt-controller or
interrupt-map property in /soc/interrupt-controller@e61c0000
Warning (interrupts_property): Missing #interrupt-cells in
interrupt-parent /soc/interrupt-controller@e61c000

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77965: Add #pwm-cells property
Jacopo Mondi [Fri, 23 Feb 2018 13:40:57 +0000 (14:40 +0100)]
arm64: dts: renesas: r8a77965: Add #pwm-cells property

Add "#pwm-cells" property to "pwm@e6e31000" device node.

This silences the following DTC compiler warning:
Warning (pwms_property): Missing property '#pwm-cells' in node
/soc/pwm@e6e31000 or bad phandle (referred from /backlight:pwms[0])

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77965: Add #phy-cells property
Jacopo Mondi [Fri, 23 Feb 2018 13:40:56 +0000 (14:40 +0100)]
arm64: dts: renesas: r8a77965: Add #phy-cells property

Add "#phy-cells" property to "usb-phy@e65ee000" device node.

This silences the following DTC compiler warning:
Warning (phys_property): Missing property '#phy-cells' in node
/soc/usb-phy@e65ee000 or bad phandle (referred from
/soc/usb@ee020000:phys[0])

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77965: Remove stale reg property
Jacopo Mondi [Fri, 23 Feb 2018 13:40:55 +0000 (14:40 +0100)]
arm64: dts: renesas: r8a77965: Remove stale reg property

Remove "reg" property from cache-controller-0 device node as it does not
have any unit address.

This silences the following DTC compiler warning:
Warning (unit_address_vs_reg): Node /cpus/cache-controller-0 has a reg
or ranges property, but no unit name

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77965: Add #address-cells and #size-cells
Jacopo Mondi [Fri, 23 Feb 2018 13:40:54 +0000 (14:40 +0100)]
arm64: dts: renesas: r8a77965: Add #address-cells and #size-cells

Add "#address-cells" and "#size-cells" properties to all place-holder nodes
that have children nodes defined by salvator-x[s].dtsi device tree.

This silences the following DTC compiler warnings:
Warning (reg_format): "reg" property in /soc/.. has invalid length (4 bytes)
(#address-cells == 2, #size-cells == 1)
Warning (avoid_default_addr_size): Relying on default #address-cells
value for /soc/...
Warning (avoid_default_addr_size): Relying on default #size-cells value
for /soc/...

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77965: Add "reg" properties
Jacopo Mondi [Fri, 23 Feb 2018 13:40:53 +0000 (14:40 +0100)]
arm64: dts: renesas: r8a77965: Add "reg" properties

Add "reg" properties to place-holder nodes with unit address defined for
R-Car M3-N SoC.

This silences the following DTC compiler warning:
Warning (unit_address_vs_reg): Node /soc/... has a unit name,
but no reg property

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77965: Add GPIO nodes
Jacopo Mondi [Tue, 20 Feb 2018 15:12:18 +0000 (16:12 +0100)]
arm64: dts: renesas: r8a77965: Add GPIO nodes

Add GPIO nodes to r8a77965 SoC device tree file.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77965: Add SCIF device nodes
Jacopo Mondi [Tue, 20 Feb 2018 15:12:16 +0000 (16:12 +0100)]
arm64: dts: renesas: r8a77965: Add SCIF device nodes

Add SCIF[0-5] device nodes for M3-N (r8a77965) SoC.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77965: Add dmac device nods
Jacopo Mondi [Tue, 20 Feb 2018 15:12:13 +0000 (16:12 +0100)]
arm64: dts: renesas: r8a77965: Add dmac device nods

Add dmac[0-2] device nodes for R-Car M3-N (r8a77965) SoC.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: Add R-Car Salvator-x M3-N support
Jacopo Mondi [Tue, 20 Feb 2018 15:12:11 +0000 (16:12 +0100)]
arm64: dts: renesas: Add R-Car Salvator-x M3-N support

Add basic support for R-Car Salvator-X M3-N (R8A77965) board.

Based on original work from:
Takeshi Kihara <takeshi.kihara.df@renesas.com>
Magnus Damm <damm+renesas@opensource.se>

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: initial R8A77965 SoC device tree
Jacopo Mondi [Tue, 20 Feb 2018 15:12:10 +0000 (16:12 +0100)]
arm64: dts: renesas: initial R8A77965 SoC device tree

Basic support for the Gen 3 R-Car M3-N SoC.

Based on original work from:
Takeshi Kihara <takeshi.kihara.df@renesas.com>
Magnus Damm <damm+renesas@opensource.se>

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: add Renesas R8A77965 support
Jacopo Mondi [Tue, 20 Feb 2018 15:12:09 +0000 (16:12 +0100)]
arm64: add Renesas R8A77965 support

Add configuration option for the R-Car M3-N (R8A77965) SoC.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a7795: Update OPPs to support CA53 dfs
Dien Pham [Mon, 29 Jan 2018 18:21:21 +0000 (19:21 +0100)]
arm64: dts: renesas: r8a7795: Update OPPs to support CA53 dfs

Describe frequencies, other than the default for CA53 cores.  This is a
pre-requisite for using providing alternative frequencies for use with
CPUFreq with these cores.

Signed-off-by: Dien Pham <dien.pham.ry@renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a7796: Update OPPs to support CA53 dfs
Dien Pham [Mon, 29 Jan 2018 18:21:20 +0000 (19:21 +0100)]
arm64: dts: renesas: r8a7796: Update OPPs to support CA53 dfs

Describe frequencies, other than the default for CA53 cores.  This is a
pre-requisite for using providing alternative frequencies for use with
CPUFreq with these cores.

Signed-off-by: Dien Pham <dien.pham.ry@renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: condor: add EtherAVB support
Sergei Shtylyov [Fri, 16 Feb 2018 18:38:31 +0000 (21:38 +0300)]
arm64: dts: renesas: condor: add EtherAVB support

Define the Condor board dependent part of the EtherAVB device node.

Based  on the original (and large) patch by Vladimir Barinov.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: initial Condor board device tree
Sergei Shtylyov [Fri, 16 Feb 2018 18:35:22 +0000 (21:35 +0300)]
arm64: dts: renesas: initial Condor board device tree

Add the initial device  tree for  the R8A77980 SoC based Condor board.
The board has 1 debug serial port (SCIF0); include support for it, so
that the serial console can work.

Based on the original (and large) patch by Vladimir Barinov.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
[simon: correct memory size to 0x78000000 (2GiB)]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77980: add EtherAVB support
Sergei Shtylyov [Fri, 16 Feb 2018 18:32:54 +0000 (21:32 +0300)]
arm64: dts: renesas: r8a77980: add EtherAVB support

Define the generic R8A77980 part of the EtherAVB device node.

Based on the original (and large) patch by Vladimir Barinov.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77980: add [H]SCIF support
Sergei Shtylyov [Fri, 16 Feb 2018 18:30:23 +0000 (21:30 +0300)]
arm64: dts: renesas: r8a77980: add [H]SCIF support

Describe [H]SCIF ports in the R8A77980 device tree.

Based on the original (and large) patch by Vladimir Barinov.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: draak: Enable DU
Kieran Bingham [Fri, 16 Feb 2018 12:32:35 +0000 (12:32 +0000)]
arm64: dts: renesas: draak: Enable DU

Enable the DU, providing only the VGA output for now.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a7796: Fix register mappings on VSPs
Kieran Bingham [Wed, 14 Feb 2018 09:55:08 +0000 (09:55 +0000)]
arm64: dts: renesas: r8a7796: Fix register mappings on VSPs

The VSPD includes a CLUT on RPF2. Ensure that the register space is
mapped correctly to support this.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a7795: Fix register mappings on VSPs
Kieran Bingham [Wed, 14 Feb 2018 09:55:07 +0000 (09:55 +0000)]
arm64: dts: renesas: r8a7795: Fix register mappings on VSPs

The VSPD includes a CLUT on RPF2. Ensure that the register space is
mapped correctly to support this.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a7795-es1: Fix register mappings on VSPs
Kieran Bingham [Wed, 14 Feb 2018 09:55:06 +0000 (09:55 +0000)]
arm64: dts: renesas: r8a7795-es1: Fix register mappings on VSPs

The VSPD includes a CLUT on RPF2. Ensure that the register space is
mapped correctly to support this.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77995: add DU support
Kieran Bingham [Thu, 15 Feb 2018 08:38:19 +0000 (08:38 +0000)]
arm64: dts: renesas: r8a77995: add DU support

Define the generic r8a77995 part of the DU device node.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: draak: enable SDHI2
Ulrich Hecht [Wed, 29 Nov 2017 16:06:46 +0000 (17:06 +0100)]
arm64: dts: renesas: draak: enable SDHI2

The single SDHI controller is connected to eMMC.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77995: add VSP instances
Kieran Bingham [Wed, 14 Feb 2018 09:55:05 +0000 (09:55 +0000)]
arm64: dts: renesas: r8a77995: add VSP instances

The r8a77995 has a VSPBS to support image processing such as blending of
two input images, and has two VSPDs to handle display pipelines with a
DU.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[simon: updated base address of vsp node to fea28000]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77995: add FCPV nodes
Kieran Bingham [Wed, 14 Feb 2018 09:55:04 +0000 (09:55 +0000)]
arm64: dts: renesas: r8a77995: add FCPV nodes

The FCPVB handles the interface between the VSPB and memory, while the
FCPVD handles the interface between the VSPD and memory.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: eagle: specify EtherAVB PHY IRQ
Sergei Shtylyov [Tue, 13 Feb 2018 11:24:14 +0000 (14:24 +0300)]
arm64: dts: renesas: eagle: specify EtherAVB PHY IRQ

Specify  EtherAVB PHY IRQ  in the Eagle board's device tree, now that we
have the GPIO support (previously phylib had to resort to polling).

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77970: add GPIO support
Sergei Shtylyov [Tue, 13 Feb 2018 11:22:52 +0000 (14:22 +0300)]
arm64: dts: renesas: r8a77970: add GPIO support

Describe all 6 GPIO controllers in the R8A77970 device tree.

Based on the original (and large) patch by Daisuke Matsushita
<daisuke.matsushita.ns@hitachi.com>.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: eagle: add SCIF0 pins
Sergei Shtylyov [Fri, 10 Nov 2017 20:02:20 +0000 (23:02 +0300)]
arm64: dts: renesas: eagle: add SCIF0 pins

Add the (previously omitted) SCIF0 pin data to the Eagle board's
device tree.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77970: add PFC support
Sergei Shtylyov [Fri, 10 Nov 2017 20:02:19 +0000 (23:02 +0300)]
arm64: dts: renesas: r8a77970: add PFC support

Define the generic R8A77970 part of the PFC device node.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77995: Remove non-existing STBE region
Geert Uytterhoeven [Tue, 6 Feb 2018 13:05:54 +0000 (14:05 +0100)]
arm64: dts: renesas: r8a77995: Remove non-existing STBE region

R-Car D3 does not have the Stream Buffer for EtherAVB-IF (STBE).

Note that the RAVB driver does not use this region.

Fixes: f9ba0c4cfe6169b7 ("arm64: dts: renesas: r8a77995: Add EthernetAVB device node")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77970: Remove non-existing STBE region
Geert Uytterhoeven [Tue, 6 Feb 2018 13:05:53 +0000 (14:05 +0100)]
arm64: dts: renesas: r8a77970: Remove non-existing STBE region

R-Car V3M does not have the Stream Buffer for EtherAVB-IF (STBE).

Note that the RAVB driver does not use this region.

Fixes: bea2ab136eaacec2 ("arm64: dts: renesas: r8a77970: add EtherAVB support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77980: add SYS-DMAC support
Sergei Shtylyov [Fri, 2 Feb 2018 18:36:16 +0000 (21:36 +0300)]
arm64: dts: renesas: r8a77980: add SYS-DMAC support

Describe SYS-DMAC1/2 in the R8A77980 device tree.

Based on the original (and large) patch by Vladimir Barinov.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: initial R8A77980 SoC device tree
Sergei Shtylyov [Fri, 2 Feb 2018 18:33:39 +0000 (21:33 +0300)]
arm64: dts: renesas: initial R8A77980 SoC device tree

The initial R8A77980 SoC device tree including Cortex-A53 CPU, GIC, timer,
CPG, RST, and SYSC.

Based on the original (and large) patch by Vladimir Barinov.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: add Renesas R8A77980 support
Sergei Shtylyov [Wed, 31 Jan 2018 19:59:03 +0000 (22:59 +0300)]
arm64: add Renesas R8A77980 support

Add a configuration option for the R-Car V3H (R8A77980) SoC.

Based on the original (and large) patch by Vladimir Barinov.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: draak: enable I2C controller 1
Ulrich Hecht [Mon, 29 Jan 2018 15:45:46 +0000 (16:45 +0100)]
arm64: dts: renesas: draak: enable I2C controller 1

No devices to add, I2C1 has an external connector only.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: draak: enable I2C controller 0 and EEPROM
Ulrich Hecht [Mon, 29 Jan 2018 15:45:45 +0000 (16:45 +0100)]
arm64: dts: renesas: draak: enable I2C controller 0 and EEPROM

Enables EEPROM on I2C0 on the Draak board.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77995: add I2C support
Ulrich Hecht [Mon, 29 Jan 2018 15:45:44 +0000 (16:45 +0100)]
arm64: dts: renesas: r8a77995: add I2C support

Defines R-Car D3 I2C controllers 0-3.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a7796: update register size for thermal
Niklas Söderlund [Fri, 5 Jan 2018 15:54:47 +0000 (16:54 +0100)]
arm64: dts: renesas: r8a7796: update register size for thermal

To be able to read fused calibration values from hardware the size of
the register resource of TSC1 needs to be incremented to cover one more
register which holds the information if the calibration values have been
fused or not.

Instead of increasing TSC1 size to the value from the datasheet update
all TSC's size to the smallest granularity of the address decoder
circuitry.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a7795: update register size for thermal
Niklas Söderlund [Fri, 5 Jan 2018 15:54:46 +0000 (16:54 +0100)]
arm64: dts: renesas: r8a7795: update register size for thermal

To be able to read fused calibration values from hardware the size of
the register resource of TSC1 needs to be incremented to cover one more
register which holds the information if the calibration values have been
fused or not.

Instead of increasing TSC1 size to the value from the datasheet update
all TSC's size to the smallest granularity of the address decoder
circuitry

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77995: move nodes which have no reg property out of bus
Simon Horman [Wed, 20 Dec 2017 12:24:42 +0000 (13:24 +0100)]
arm64: dts: renesas: r8a77995: move nodes which have no reg property out of bus

Move pmu_a53 and timer nodes from soc node to root node.  The nodes that
have been moved do not have any register properties and thus shouldn't be
placed on the bus.

This problem is flagged by the compiler as follows:
$ make W=1
...
arch/arm64/boot/dts/renesas/r8a77995-draak.dtb: Warning (simple_bus_reg): Node /soc/timer missing or empty reg/ranges property
arch/arm64/boot/dts/renesas/r8a77995-draak.dtb: Warning (simple_bus_reg): Node /soc/pmu_a53 missing or empty reg/ranges property

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a77970: move node which has no reg property out of bus
Simon Horman [Wed, 20 Dec 2017 12:25:49 +0000 (13:25 +0100)]
arm64: dts: renesas: r8a77970: move node which has no reg property out of bus

Move timer node from soc node to root node.  The node that have been moved
do not have any register properties and thus shouldn't be placed on the
bus.

This problem is flagged by the compiler as follows:
$ make W=1
...
  DTC     arch/arm64/boot/dts/renesas/r8a77970-eagle.dtb
arch/arm64/boot/dts/renesas/r8a77970-eagle.dtb: Warning (simple_bus_reg): Node /soc/timer missing or empty reg/ranges property
  DTC     arch/arm64/boot/dts/renesas/r8a77970-v3msk.dtb
arch/arm64/boot/dts/renesas/r8a77970-v3msk.dtb: Warning (simple_bus_reg): Node /soc/timer missing or empty reg/ranges property

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: salvator-common: add GPIO extender
Wolfram Sang [Fri, 22 Dec 2017 20:11:46 +0000 (21:11 +0100)]
arm64: dts: renesas: salvator-common: add GPIO extender

We need to configure its GPIOs later.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a7795: add thermal cooling management
Niklas Söderlund [Thu, 4 Jan 2018 16:03:19 +0000 (17:03 +0100)]
arm64: dts: renesas: r8a7795: add thermal cooling management

Add nodes and properties for thermal cooling management support.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a7796: add thermal cooling management
Niklas Söderlund [Thu, 4 Jan 2018 16:03:20 +0000 (17:03 +0100)]
arm64: dts: renesas: r8a7796: add thermal cooling management

Add nodes and properties for thermal cooling management support.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
6 years agoarm64: dts: renesas: r8a7796: Add OPPs table for cpu devices
Dien Pham [Wed, 3 Jan 2018 12:41:05 +0000 (13:41 +0100)]
arm64: dts: renesas: r8a7796: Add OPPs table for cpu devices

Define OOP tables for all CPUs.
This allows CPUFreq to function.

Based in part on work by Hien Dang.

Signed-off-by: Dien Pham <dien.pham.ry@rvc.renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
6 years agoarm64: dts: renesas: r8a7795: Add OPPs table for cpu devices
Dien Pham [Wed, 3 Jan 2018 12:41:04 +0000 (13:41 +0100)]
arm64: dts: renesas: r8a7795: Add OPPs table for cpu devices

Define OOP tables for all CPUs.
This allows CPUFreq to function.

Based in part on work by Hien Dang.

Signed-off-by: Dien Pham <dien.pham.ry@rvc.renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
6 years agoarm64: dts: renesas: r8a7795: move scif node into alphabetical order
Simon Horman [Wed, 3 Jan 2018 12:41:03 +0000 (13:41 +0100)]
arm64: dts: renesas: r8a7795: move scif node into alphabetical order

Move scif node so that sub-nodes of the root node are in
alphabetical order.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
6 years agoLinux 4.16-rc1 v4.16-rc1
Linus Torvalds [Sun, 11 Feb 2018 23:04:29 +0000 (15:04 -0800)]
Linux 4.16-rc1

6 years agounify {de,}mangle_poll(), get rid of kernel-side POLL...
Al Viro [Thu, 1 Feb 2018 20:13:18 +0000 (15:13 -0500)]
unify {de,}mangle_poll(), get rid of kernel-side POLL...

except, again, POLLFREE and POLL_BUSY_LOOP.

With this, we finally get to the promised end result:

 - POLL{IN,OUT,...} are plain integers and *not* in __poll_t, so any
   stray instances of ->poll() still using those will be caught by
   sparse.

 - eventpoll.c and select.c warning-free wrt __poll_t

 - no more kernel-side definitions of POLL... - userland ones are
   visible through the entire kernel (and used pretty much only for
   mangle/demangle)

 - same behavior as after the first series (i.e. sparc et.al. epoll(2)
   working correctly).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
6 years agovfs: do bulk POLL* -> EPOLL* replacement
Linus Torvalds [Sun, 11 Feb 2018 22:34:03 +0000 (14:34 -0800)]
vfs: do bulk POLL* -> EPOLL* replacement

This is the mindless scripted replacement of kernel use of POLL*
variables as described by Al, done by this script:

    for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do
        L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'`
        for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done
    done

with de-mangling cleanups yet to come.

NOTE! On almost all architectures, the EPOLL* constants have the same
values as the POLL* constants do.  But they keyword here is "almost".
For various bad reasons they aren't the same, and epoll() doesn't
actually work quite correctly in some cases due to this on Sparc et al.

The next patch from Al will sort out the final differences, and we
should be all done.

Scripted-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
6 years agoMerge branch 'work.poll2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Sun, 11 Feb 2018 21:57:19 +0000 (13:57 -0800)]
Merge branch 'work.poll2' of git://git./linux/kernel/git/viro/vfs

Pull more poll annotation updates from Al Viro:
 "This is preparation to solving the problems you've mentioned in the
  original poll series.

  After this series, the kernel is ready for running

      for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do
            L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'`
            for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done
      done

  as a for bulk search-and-replace.

  After that, the kernel is ready to apply the patch to unify
  {de,}mangle_poll(), and then get rid of kernel-side POLL... uses
  entirely, and we should be all done with that stuff.

  Basically, that's what you suggested wrt KPOLL..., except that we can
  use EPOLL... instead - they already are arch-independent (and equal to
  what is currently kernel-side POLL...).

  After the preparations (in this series) switch to returning EPOLL...
  from ->poll() instances is completely mechanical and kernel-side
  POLL... can go away. The last step (killing kernel-side POLL... and
  unifying {de,}mangle_poll() has to be done after the
  search-and-replace job, since we need userland-side POLL... for
  unified {de,}mangle_poll(), thus the cherry-pick at the last step.

  After that we will have:

   - POLL{IN,OUT,...} *not* in __poll_t, so any stray instances of
     ->poll() still using those will be caught by sparse.

   - eventpoll.c and select.c warning-free wrt __poll_t

   - no more kernel-side definitions of POLL... - userland ones are
     visible through the entire kernel (and used pretty much only for
     mangle/demangle)

   - same behavior as after the first series (i.e. sparc et.al. epoll(2)
     working correctly)"

* 'work.poll2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  annotate ep_scan_ready_list()
  ep_send_events_proc(): return result via esed->res
  preparation to switching ->poll() to returning EPOLL...
  add EPOLLNVAL, annotate EPOLL... and event_poll->event
  use linux/poll.h instead of asm/poll.h
  xen: fix poll misannotation
  smc: missing poll annotations

6 years agoMerge tag 'xtensa-20180211' of git://github.com/jcmvbkbc/linux-xtensa
Linus Torvalds [Sun, 11 Feb 2018 21:54:52 +0000 (13:54 -0800)]
Merge tag 'xtensa-20180211' of git://github.com/jcmvbkbc/linux-xtensa

Pull xtense fix from Max Filippov:
 "Build fix for xtensa architecture with KASAN enabled"

* tag 'xtensa-20180211' of git://github.com/jcmvbkbc/linux-xtensa:
  xtensa: fix build with KASAN

6 years agoMerge tag 'nios2-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan...
Linus Torvalds [Sun, 11 Feb 2018 21:52:32 +0000 (13:52 -0800)]
Merge tag 'nios2-v4.16-rc1' of git://git./linux/kernel/git/lftan/nios2

Pull nios2 update from Ley Foon Tan:

 - clean up old Kconfig options from defconfig

 - remove leading 0x and 0s from bindings notation in dts files

* tag 'nios2-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2:
  nios2: defconfig: Cleanup from old Kconfig options
  nios2: dts: Remove leading 0x and 0s from bindings notation

6 years agoxtensa: fix build with KASAN
Max Filippov [Sun, 11 Feb 2018 09:07:54 +0000 (01:07 -0800)]
xtensa: fix build with KASAN

The commit 917538e212a2 ("kasan: clean up KASAN_SHADOW_SCALE_SHIFT
usage") removed KASAN_SHADOW_SCALE_SHIFT definition from
include/linux/kasan.h and added it to architecture-specific headers,
except for xtensa. This broke the xtensa build with KASAN enabled.
Define KASAN_SHADOW_SCALE_SHIFT in arch/xtensa/include/asm/kasan.h

Reported by: kbuild test robot <fengguang.wu@intel.com>
Fixes: 917538e212a2 ("kasan: clean up KASAN_SHADOW_SCALE_SHIFT usage")
Acked-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
6 years agonios2: defconfig: Cleanup from old Kconfig options
Krzysztof Kozlowski [Sun, 11 Feb 2018 15:01:17 +0000 (23:01 +0800)]
nios2: defconfig: Cleanup from old Kconfig options

Remove old, dead Kconfig option INET_LRO. It is gone since
commit 7bbf3cae65b6 ("ipv4: Remove inet_lro library").

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Ley Foon Tan <ley.foon.tan@intel.com>
6 years agonios2: dts: Remove leading 0x and 0s from bindings notation
Mathieu Malaterre [Sun, 11 Feb 2018 14:59:18 +0000 (22:59 +0800)]
nios2: dts: Remove leading 0x and 0s from bindings notation

Improve the DTS files by removing all the leading "0x" and zeros to fix the
following dtc warnings:

Warning (unit_address_format): Node /XXX unit name should not have leading "0x"

and

Warning (unit_address_format): Node /XXX unit name should not have leading 0s

Converted using the following command:

find . -type f \( -iname *.dts -o -iname *.dtsi \) -exec sed -E -i -e "s/@0x([0-9a-fA-F\.]+)\s?\{/@\L\1 \{/g" -e "s/@0+([0-9a-fA-F\.]+)\s?\{/@\L\1 \{/g" {} +

For simplicity, two sed expressions were used to solve each warnings separately.

To make the regex expression more robust a few other issues were resolved,
namely setting unit-address to lower case, and adding a whitespace before the
the opening curly brace:

https://elinux.org/Device_Tree_Linux#Linux_conventions

This is a follow up to commit 4c9847b7375a ("dt-bindings: Remove leading 0x from bindings notation")

Reported-by: David Daney <ddaney@caviumnetworks.com>
Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Acked-by: Ley Foon Tan <ley.foon.tan@intel.com>
6 years agoMerge tag 'pci-v4.16-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaa...
Linus Torvalds [Sat, 10 Feb 2018 22:08:26 +0000 (14:08 -0800)]
Merge tag 'pci-v4.16-fixes-1' of git://git./linux/kernel/git/helgaas/pci

Pull PCI fix from Bjorn Helgaas:
 "Fix a POWER9/powernv INTx regression from the merge window (Alexey
  Kardashevskiy)"

* tag 'pci-v4.16-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  powerpc/pci: Fix broken INTx configuration via OF

6 years agoMerge tag 'for-linus-20180210' of git://git.kernel.dk/linux-block
Linus Torvalds [Sat, 10 Feb 2018 22:05:11 +0000 (14:05 -0800)]
Merge tag 'for-linus-20180210' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "A few fixes to round off the merge window on the block side:

   - a set of bcache fixes by way of Michael Lyle, from the usual bcache
     suspects.

   - add a simple-to-hook-into function for bpf EIO error injection.

   - fix blk-wbt that mischarectized flushes as reads. Improve the logic
     so that flushes and writes are accounted as writes, and only reads
     as reads. From me.

   - fix requeue crash in BFQ, from Paolo"

* tag 'for-linus-20180210' of git://git.kernel.dk/linux-block:
  block, bfq: add requeue-request hook
  bcache: fix for data collapse after re-attaching an attached device
  bcache: return attach error when no cache set exist
  bcache: set writeback_rate_update_seconds in range [1, 60] seconds
  bcache: fix for allocator and register thread race
  bcache: set error_limit correctly
  bcache: properly set task state in bch_writeback_thread()
  bcache: fix high CPU occupancy during journal
  bcache: add journal statistic
  block: Add should_fail_bio() for bpf error injection
  blk-wbt: account flush requests correctly

6 years agoMerge tag 'platform-drivers-x86-v4.16-3' of git://github.com/dvhart/linux-pdx86
Linus Torvalds [Sat, 10 Feb 2018 21:55:33 +0000 (13:55 -0800)]
Merge tag 'platform-drivers-x86-v4.16-3' of git://github.com/dvhart/linux-pdx86

Pull x86 platform driver updates from Darren Hart:
 "Mellanox fixes and new system type support.

  Mostly data for new system types with a correction and an
  uninitialized variable fix"

[ Pulling from github because git.infradead.org currently seems to be
  down for some reason, but Darren had a backup location    - Linus ]

* tag 'platform-drivers-x86-v4.16-3' of git://github.com/dvhart/linux-pdx86:
  platform/x86: mlx-platform: Add support for new 200G IB and Ethernet systems
  platform/x86: mlx-platform: Add support for new msn201x system type
  platform/x86: mlx-platform: Add support for new msn274x system type
  platform/x86: mlx-platform: Fix power cable setting for msn21xx family
  platform/x86: mlx-platform: Add define for the negative bus
  platform/x86: mlx-platform: Use defines for bus assignment
  platform/mellanox: mlxreg-hotplug: Fix uninitialized variable

6 years agoMerge tag 'chrome-platform-for-linus-4.16' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Sat, 10 Feb 2018 21:50:23 +0000 (13:50 -0800)]
Merge tag 'chrome-platform-for-linus-4.16' of git://git./linux/kernel/git/bleung/chrome-platform

Pull chrome platform updates from Benson Leung:

 - move cros_ec_dev to drivers/mfd

 - other small maintenance fixes

[ The cros_ec_dev movement came in earlier through the MFD tree  - Linus ]

* tag 'chrome-platform-for-linus-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform:
  platform/chrome: Use proper protocol transfer function
  platform/chrome: cros_ec_lpc: Add support for Google Glimmer
  platform/chrome: cros_ec_lpc: Register the driver if ACPI entry is missing.
  platform/chrome: cros_ec_lpc: remove redundant pointer request
  cros_ec: fix nul-termination for firmware build info
  platform/chrome: chromeos_laptop: make chromeos_laptop const

6 years agoMerge tag 'kvm-4.16-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Sat, 10 Feb 2018 21:16:35 +0000 (13:16 -0800)]
Merge tag 'kvm-4.16-1' of git://git./virt/kvm/kvm

Pull KVM updates from Radim Krčmář:
 "ARM:

   - icache invalidation optimizations, improving VM startup time

   - support for forwarded level-triggered interrupts, improving
     performance for timers and passthrough platform devices

   - a small fix for power-management notifiers, and some cosmetic
     changes

  PPC:

   - add MMIO emulation for vector loads and stores

   - allow HPT guests to run on a radix host on POWER9 v2.2 CPUs without
     requiring the complex thread synchronization of older CPU versions

   - improve the handling of escalation interrupts with the XIVE
     interrupt controller

   - support decrement register migration

   - various cleanups and bugfixes.

  s390:

   - Cornelia Huck passed maintainership to Janosch Frank

   - exitless interrupts for emulated devices

   - cleanup of cpuflag handling

   - kvm_stat counter improvements

   - VSIE improvements

   - mm cleanup

  x86:

   - hypervisor part of SEV

   - UMIP, RDPID, and MSR_SMI_COUNT emulation

   - paravirtualized TLB shootdown using the new KVM_VCPU_PREEMPTED bit

   - allow guests to see TOPOEXT, GFNI, VAES, VPCLMULQDQ, and more
     AVX512 features

   - show vcpu id in its anonymous inode name

   - many fixes and cleanups

   - per-VCPU MSR bitmaps (already merged through x86/pti branch)

   - stable KVM clock when nesting on Hyper-V (merged through
     x86/hyperv)"

* tag 'kvm-4.16-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (197 commits)
  KVM: PPC: Book3S: Add MMIO emulation for VMX instructions
  KVM: PPC: Book3S HV: Branch inside feature section
  KVM: PPC: Book3S HV: Make HPT resizing work on POWER9
  KVM: PPC: Book3S HV: Fix handling of secondary HPTEG in HPT resizing code
  KVM: PPC: Book3S PR: Fix broken select due to misspelling
  KVM: x86: don't forget vcpu_put() in kvm_arch_vcpu_ioctl_set_sregs()
  KVM: PPC: Book3S PR: Fix svcpu copying with preemption enabled
  KVM: PPC: Book3S HV: Drop locks before reading guest memory
  kvm: x86: remove efer_reload entry in kvm_vcpu_stat
  KVM: x86: AMD Processor Topology Information
  x86/kvm/vmx: do not use vm-exit instruction length for fast MMIO when running nested
  kvm: embed vcpu id to dentry of vcpu anon inode
  kvm: Map PFN-type memory regions as writable (if possible)
  x86/kvm: Make it compile on 32bit and with HYPYERVISOR_GUEST=n
  KVM: arm/arm64: Fixup userspace irqchip static key optimization
  KVM: arm/arm64: Fix userspace_irqchip_in_use counting
  KVM: arm/arm64: Fix incorrect timer_is_pending logic
  MAINTAINERS: update KVM/s390 maintainers
  MAINTAINERS: add Halil as additional vfio-ccw maintainer
  MAINTAINERS: add David as a reviewer for KVM/s390
  ...

6 years agopowerpc/pci: Fix broken INTx configuration via OF
Alexey Kardashevskiy [Fri, 9 Feb 2018 06:23:58 +0000 (17:23 +1100)]
powerpc/pci: Fix broken INTx configuration via OF

59f47eff03a0 ("powerpc/pci: Use of_irq_parse_and_map_pci() helper")
replaced of_irq_parse_pci() + irq_create_of_mapping() with
of_irq_parse_and_map_pci(), but neglected to capture the virq
returned by irq_create_of_mapping(), so virq remained zero, which
caused INTx configuration to fail.

Save the virq value returned by of_irq_parse_and_map_pci() and correct
the virq declaration to match the of_irq_parse_and_map_pci() signature.

Fixes: 59f47eff03a0 "powerpc/pci: Use of_irq_parse_and_map_pci() helper"
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
6 years agoMerge tag 'kbuild-v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy...
Linus Torvalds [Sat, 10 Feb 2018 03:32:41 +0000 (19:32 -0800)]
Merge tag 'kbuild-v4.16-2' of git://git./linux/kernel/git/masahiroy/linux-kbuild

Pull more Kbuild updates from Masahiro Yamada:
 "Makefile changes:
   - enable unused-variable warning that was wrongly disabled for clang

  Kconfig changes:
   - warn about blank 'help' and fix existing instances
   - fix 'choice' behavior to not write out invisible symbols
   - fix misc weirdness

  Coccinell changes:
   - fix false positive of free after managed memory alloc detection
   - improve performance of NULL dereference detection"

* tag 'kbuild-v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (21 commits)
  kconfig: remove const qualifier from sym_expand_string_value()
  kconfig: add xrealloc() helper
  kconfig: send error messages to stderr
  kconfig: echo stdin to stdout if either is redirected
  kconfig: remove check_stdin()
  kconfig: remove 'config*' pattern from .gitignnore
  kconfig: show '?' prompt even if no help text is available
  kconfig: do not write choice values when their dependency becomes n
  coccinelle: deref_null: avoid useless computation
  coccinelle: devm_free: reduce false positives
  kbuild: clang: disable unused variable warnings only when constant
  kconfig: Warn if help text is blank
  nios2: kconfig: Remove blank help text
  arm: vt8500: kconfig: Remove blank help text
  MIPS: kconfig: Remove blank help text
  MIPS: BCM63XX: kconfig: Remove blank help text
  lib/Kconfig.debug: Remove blank help text
  Staging: rtl8192e: kconfig: Remove blank help text
  Staging: rtl8192u: kconfig: Remove blank help text
  mmc: kconfig: Remove blank help text
  ...

6 years agomconsole_proc(): don't mess with file->f_pos
Al Viro [Sat, 10 Feb 2018 01:35:16 +0000 (01:35 +0000)]
mconsole_proc(): don't mess with file->f_pos

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
6 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Sat, 10 Feb 2018 03:22:17 +0000 (19:22 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs

Pull misc vfs fixes from Al Viro.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  seq_file: fix incomplete reset on read from zero offset
  kernfs: fix regression in kernfs_fop_write caused by wrong type

6 years agokconfig: remove const qualifier from sym_expand_string_value()
Masahiro Yamada [Thu, 8 Feb 2018 16:19:08 +0000 (01:19 +0900)]
kconfig: remove const qualifier from sym_expand_string_value()

This function returns realloc'ed memory, so the returned pointer
must be passed to free() when done.  So, 'const' qualifier is odd.
It is allowed to modify the expanded string.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
6 years agokconfig: add xrealloc() helper
Masahiro Yamada [Thu, 8 Feb 2018 16:19:07 +0000 (01:19 +0900)]
kconfig: add xrealloc() helper

We already have xmalloc(), xcalloc().  Add xrealloc() as well
to save tedious error handling.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
6 years agoplatform/x86: mlx-platform: Add support for new 200G IB and Ethernet systems
Vadim Pasternak [Fri, 9 Feb 2018 23:59:32 +0000 (23:59 +0000)]
platform/x86: mlx-platform: Add support for new 200G IB and Ethernet systems

It adds support for new Mellanox system types of basic classes qmb7, sn34,
sn37, containing systems QMB700 (40x200GbE InfiniBand switch), SN3700
(32x200GbE and 16x400GbE Ethernet switch) and SN3410 (6x400GbE plus
48x50GbE Ethernet switch). These are the Top of the Rack systems, equipped
with Mellanox COM-Express carrier board and switch board with Mellanox
Quantum device, which supports InfiniBand switching with 40X200G ports and
line rate of up to HDR speed or with Mellanox Spectrum-2 device, which
supports Ethernet switching with 32X200G ports line rate of up to HDR
speed.

Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
6 years agoplatform/x86: mlx-platform: Add support for new msn201x system type
Vadim Pasternak [Fri, 9 Feb 2018 23:59:31 +0000 (23:59 +0000)]
platform/x86: mlx-platform: Add support for new msn201x system type

It adds support for new Mellanox system types of basic half unit size
class msn201x, containing system MSN2010 (18x10GbE plus 4x4x25GbE) half
and its derivatives. This is the Top of the Rack system, equipped with
Mellanox Small Form Factor carrier board and switch board with Mellanox
Spectrum device, which supports Ethernet switching with 32X100G ports line
rate of up to EDR speed.

Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
6 years agoplatform/x86: mlx-platform: Add support for new msn274x system type
Vadim Pasternak [Fri, 9 Feb 2018 23:59:30 +0000 (23:59 +0000)]
platform/x86: mlx-platform: Add support for new msn274x system type

It adds support for new Mellanox system types of basic class msn274x,
containing system MSN2740 (32x100GbE Ethernet switch with cost reduction)
and its derivatives. These are the Top of the Rack system, equipped with
Mellanox Small Form Factor carrier board and switch board with Mellanox
Spectrum device, which supports Ethernet switching with 32X100G ports line
rate of up to EDR speed.

Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
6 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Fri, 9 Feb 2018 23:34:18 +0000 (15:34 -0800)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) Make allocations less aggressive in x_tables, from Minchal Hocko.

 2) Fix netfilter flowtable Kconfig deps, from Pablo Neira Ayuso.

 3) Fix connection loss problems in rtlwifi, from Larry Finger.

 4) Correct DRAM dump length for some chips in ath10k driver, from Yu
    Wang.

 5) Fix ABORT handling in rxrpc, from David Howells.

 6) Add SPDX tags to Sun networking drivers, from Shannon Nelson.

 7) Some ipv6 onlink handling fixes, from David Ahern.

 8) Netem packet scheduler interval calcualtion fix from Md. Islam.

 9) Don't put crypto buffers on-stack in rxrpc, from David Howells.

10) Fix handling of error non-delivery status in netlink multicast
    delivery over multiple namespaces, from Nicolas Dichtel.

11) Missing xdp flush in tuntap driver, from Jason Wang.

12) Synchonize RDS protocol netns/module teardown with rds object
    management, from Sowini Varadhan.

13) Add nospec annotations to mpls, from Dan Williams.

14) Fix SKB truesize handling in TIPC, from Hoang Le.

15) Interrupt masking fixes in stammc from Niklas Cassel.

16) Don't allow ptr_ring objects to be sized outside of kmalloc's
    limits, from Jason Wang.

17) Don't allow SCTP chunks to be built which will have a length
    exceeding the chunk header's 16-bit length field, from Alexey
    Kodanev.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (82 commits)
  ibmvnic: Remove skb->protocol checks in ibmvnic_xmit
  bpf: fix rlimit in reuseport net selftest
  sctp: verify size of a new chunk in _sctp_make_chunk()
  s390/qeth: fix SETIP command handling
  s390/qeth: fix underestimated count of buffer elements
  ptr_ring: try vmalloc() when kmalloc() fails
  ptr_ring: fail early if queue occupies more than KMALLOC_MAX_SIZE
  net: stmmac: remove redundant enable of PMT irq
  net: stmmac: rename GMAC_INT_DEFAULT_MASK for dwmac4
  net: stmmac: discard disabled flags in interrupt status register
  ibmvnic: Reset long term map ID counter
  tools/libbpf: handle issues with bpf ELF objects containing .eh_frames
  selftests/bpf: add selftest that use test_libbpf_open
  selftests/bpf: add test program for loading BPF ELF files
  tools/libbpf: improve the pr_debug statements to contain section numbers
  bpf: Sync kernel ABI header with tooling header for bpf_common.h
  net: phy: fix phy_start to consider PHY_IGNORE_INTERRUPT
  net: thunder: change q_len's type to handle max ring size
  tipc: fix skb truesize/datasize ratio control
  net/sched: cls_u32: fix cls_u32 on filter replace
  ...

6 years agoMerge tag 'nfs-for-4.16-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Linus Torvalds [Fri, 9 Feb 2018 22:55:30 +0000 (14:55 -0800)]
Merge tag 'nfs-for-4.16-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull more NFS client updates from Trond Myklebust:
 "A few bugfixes and some small sunrpc latency/performance improvements
  before the merge window closes:

  Stable fixes:

   - fix an incorrect calculation of the RDMA send scatter gather
     element limit

   - fix an Oops when attempting to free resources after RDMA device
     removal

  Bugfixes:

   - SUNRPC: Ensure we always release the TCP socket in a timely fashion
     when the connection is shut down.

   - SUNRPC: Don't call __UDPX_INC_STATS() from a preemptible context

  Latency/Performance:

   - SUNRPC: Queue latency sensitive socket tasks to the less contended
     xprtiod queue

   - SUNRPC: Make the xprtiod workqueue unbounded.

   - SUNRPC: Make the rpciod workqueue unbounded"

* tag 'nfs-for-4.16-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  SUNRPC: Don't call __UDPX_INC_STATS() from a preemptible context
  fix parallelism for rpc tasks
  Make the xprtiod workqueue unbounded.
  SUNRPC: Queue latency-sensitive socket tasks to xprtiod
  SUNRPC: Ensure we always close the socket after a connection shuts down
  xprtrdma: Fix BUG after a device removal
  xprtrdma: Fix calculation of ri_max_send_sges

6 years agoMerge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target...
Linus Torvalds [Fri, 9 Feb 2018 22:49:46 +0000 (14:49 -0800)]
Merge branch 'for-next' of git://git./linux/kernel/git/nab/target-pending

Pull SCSI target updates from Nicholas Bellinger:
 "The highlights include:

   - numerous target-core-user improvements related to queue full and
     timeout handling. (MNC)

   - prevent target-core-user corruption when invalid data page is
     requested. (MNC)

   - add target-core device action configfs attributes to allow
     user-space to trigger events separate from existing attributes
     exposed to end-users. (MNC)

   - fix iscsi-target NULL pointer dereference 4.6+ regression in CHAP
     error path. (David Disseldorp)

   - avoid target-core backend UNMAP callbacks if range is zero. (Andrei
     Vagin)

   - fix a iscsi-target 4.14+ regression related multiple PDU logins,
     that was exposed due to removal of TCP prequeue support. (Florian
     Westphal + MNC)

  Also, there is a iser-target bug still being worked on for post -rc1
  code to address a long standing issue resulting in persistent
  ib_post_send() failures, for RNICs with small max_send_sge"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (36 commits)
  iscsi-target: make sure to wake up sleeping login worker
  tcmu: Fix trailing semicolon
  tcmu: fix cmd user after free
  target: fix destroy device in target_configure_device
  tcmu: allow userspace to reset ring
  target core: add device action configfs files
  tcmu: fix error return code in tcmu_configure_device()
  target_core_user: add cmd id to broken ring message
  target: add SAM_STAT_BUSY sense reason
  tcmu: prevent corruption when invalid data page requested
  target: don't call an unmap callback if a range length is zero
  target/iscsi: avoid NULL dereference in CHAP auth error path
  cxgbit: call neigh_event_send() to update MAC address
  target: tcm_loop: Use seq_puts() in tcm_loop_show_info()
  target: tcm_loop: Delete an unnecessary return statement in tcm_loop_submission_work()
  target: tcm_loop: Delete two unnecessary variable initialisations in tcm_loop_issue_tmr()
  target: tcm_loop: Combine substrings for 26 messages
  target: tcm_loop: Improve a size determination in two functions
  target: tcm_loop: Delete an error message for a failed memory allocation in four functions
  sbp-target: Delete an error message for a failed memory allocation in three functions
  ...

6 years agoMerge tag 'trace-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
Linus Torvalds [Fri, 9 Feb 2018 22:47:09 +0000 (14:47 -0800)]
Merge tag 'trace-v4.16-rc1' of git://git./linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "Al Viro discovered some breakage with the parsing of the
  set_ftrace_filter as well as the removing of function probes.

  This fixes the code with Al's suggestions. I also added a few
  selftests to test the broken cases such that they wont happen
  again"

* tag 'trace-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  selftests/ftrace: Add more tests for removing of function probes
  selftests/ftrace: Add some missing glob checks
  selftests/ftrace: Have reset_ftrace_filter handle multiple instances
  selftests/ftrace: Have reset_ftrace_filter handle modules
  tracing: Fix parsing of globs with a wildcard at the beginning
  ftrace: Remove incorrect setting of glob search field

6 years agoMerge tag '4.16-minor-rc-SMB3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Fri, 9 Feb 2018 22:42:57 +0000 (14:42 -0800)]
Merge tag '4.16-minor-rc-SMB3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "There are a couple additional security fixes that are still being
  tested that are not in this set."

* tag '4.16-minor-rc-SMB3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  Add missing structs and defines from recent SMB3.1.1 documentation
  address lock imbalance warnings in smbdirect.c
  cifs: silence compiler warnings showing up with gcc-8.0.0
  Add some missing debug fields in server and tcon structs

6 years agoMerge tag 'fbdev-v4.16-fix' of git://github.com/bzolnier/linux
Linus Torvalds [Fri, 9 Feb 2018 22:40:16 +0000 (14:40 -0800)]
Merge tag 'fbdev-v4.16-fix' of git://github.com/bzolnier/linux

Pull fbdev fix from Bartlomiej Zolnierkiewicz:
 "Fix building of the omapfb driver (Tomi Valkeinen)"

* tag 'fbdev-v4.16-fix' of git://github.com/bzolnier/linux:
  video: omapfb: fix missing #includes

6 years agoMerge tag 'kvm-ppc-next-4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Radim Krčmář [Fri, 9 Feb 2018 20:36:57 +0000 (21:36 +0100)]
Merge tag 'kvm-ppc-next-4.16-2' of git://git./linux/kernel/git/paulus/powerpc

Second PPC KVM update for 4.16

Seven fixes that are either trivial or that address bugs that people
are actually hitting.  The main ones are:

- Drop spinlocks before reading guest memory

- Fix a bug causing corruption of VCPU state in PR KVM with preemption
  enabled

- Make HPT resizing work on POWER9

- Add MMIO emulation for vector loads and stores, because guests now
  use these instructions in memcpy and similar routines.

6 years agoMerge branch 'msr-bitmaps' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Radim Krčmář [Fri, 2 Feb 2018 17:26:58 +0000 (18:26 +0100)]
Merge branch 'msr-bitmaps' of git://git./virt/kvm/kvm

This topic branch allocates separate MSR bitmaps for each VCPU.
This is required for the IBRS enablement to choose, on a per-VM
basis, whether to intercept the SPEC_CTRL and PRED_CMD MSRs;
the IBRS enablement comes in through the tip tree.

6 years agoibmvnic: Remove skb->protocol checks in ibmvnic_xmit
John Allen [Fri, 9 Feb 2018 19:19:46 +0000 (13:19 -0600)]
ibmvnic: Remove skb->protocol checks in ibmvnic_xmit

Having these checks in ibmvnic_xmit causes problems with VLAN
tagging and balance-alb/tlb bonding modes. The restriction they
imposed can be removed.

Signed-off-by: John Allen <jallen@linux.vnet.ibm.com>
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agobpf: fix rlimit in reuseport net selftest
Daniel Borkmann [Fri, 9 Feb 2018 13:49:44 +0000 (14:49 +0100)]
bpf: fix rlimit in reuseport net selftest

Fix two issues in the reuseport_bpf selftests that were
reported by Linaro CI:

  [...]
  + ./reuseport_bpf
  ---- IPv4 UDP ----
  Testing EBPF mod 10...
  Reprograming, testing mod 5...
  ./reuseport_bpf: ebpf error. log:
  0: (bf) r6 = r1
  1: (20) r0 = *(u32 *)skb[0]
  2: (97) r0 %= 10
  3: (95) exit
  processed 4 insns
  : Operation not permitted
  + echo FAIL
  [...]
  ---- IPv4 TCP ----
  Testing EBPF mod 10...
  ./reuseport_bpf: failed to bind send socket: Address already in use
  + echo FAIL
  [...]

For the former adjust rlimit since this was the cause of
failure for loading the BPF prog, and for the latter add
SO_REUSEADDR.

Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Link: https://bugs.linaro.org/show_bug.cgi?id=3502
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agosctp: verify size of a new chunk in _sctp_make_chunk()
Alexey Kodanev [Fri, 9 Feb 2018 14:35:23 +0000 (17:35 +0300)]
sctp: verify size of a new chunk in _sctp_make_chunk()

When SCTP makes INIT or INIT_ACK packet the total chunk length
can exceed SCTP_MAX_CHUNK_LEN which leads to kernel panic when
transmitting these packets, e.g. the crash on sending INIT_ACK:

[  597.804948] skbuff: skb_over_panic: text:00000000ffae06e4 len:120168
               put:120156 head:000000007aa47635 data:00000000d991c2de
               tail:0x1d640 end:0xfec0 dev:<NULL>
...
[  597.976970] ------------[ cut here ]------------
[  598.033408] kernel BUG at net/core/skbuff.c:104!
[  600.314841] Call Trace:
[  600.345829]  <IRQ>
[  600.371639]  ? sctp_packet_transmit+0x2095/0x26d0 [sctp]
[  600.436934]  skb_put+0x16c/0x200
[  600.477295]  sctp_packet_transmit+0x2095/0x26d0 [sctp]
[  600.540630]  ? sctp_packet_config+0x890/0x890 [sctp]
[  600.601781]  ? __sctp_packet_append_chunk+0x3b4/0xd00 [sctp]
[  600.671356]  ? sctp_cmp_addr_exact+0x3f/0x90 [sctp]
[  600.731482]  sctp_outq_flush+0x663/0x30d0 [sctp]
[  600.788565]  ? sctp_make_init+0xbf0/0xbf0 [sctp]
[  600.845555]  ? sctp_check_transmitted+0x18f0/0x18f0 [sctp]
[  600.912945]  ? sctp_outq_tail+0x631/0x9d0 [sctp]
[  600.969936]  sctp_cmd_interpreter.isra.22+0x3be1/0x5cb0 [sctp]
[  601.041593]  ? sctp_sf_do_5_1B_init+0x85f/0xc30 [sctp]
[  601.104837]  ? sctp_generate_t1_cookie_event+0x20/0x20 [sctp]
[  601.175436]  ? sctp_eat_data+0x1710/0x1710 [sctp]
[  601.233575]  sctp_do_sm+0x182/0x560 [sctp]
[  601.284328]  ? sctp_has_association+0x70/0x70 [sctp]
[  601.345586]  ? sctp_rcv+0xef4/0x32f0 [sctp]
[  601.397478]  ? sctp6_rcv+0xa/0x20 [sctp]
...

Here the chunk size for INIT_ACK packet becomes too big, mostly
because of the state cookie (INIT packet has large size with
many address parameters), plus additional server parameters.

Later this chunk causes the panic in skb_put_data():

  skb_packet_transmit()
      sctp_packet_pack()
          skb_put_data(nskb, chunk->skb->data, chunk->skb->len);

'nskb' (head skb) was previously allocated with packet->size
from u16 'chunk->chunk_hdr->length'.

As suggested by Marcelo we should check the chunk's length in
_sctp_make_chunk() before trying to allocate skb for it and
discard a chunk if its size bigger than SCTP_MAX_CHUNK_LEN.

Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leinter@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge branch 's390-qeth-fixes'
David S. Miller [Fri, 9 Feb 2018 19:30:23 +0000 (14:30 -0500)]
Merge branch 's390-qeth-fixes'

Julian Wiedmann says:

====================
s390/qeth: fixes 2018-02-09

please apply the following two qeth patches for 4.16 and stable.

One restricts a command quirk to the intended commandd type,
while the other fixes an off-by-one during data transmission
that can cause qeth to build malformed buffer descriptors.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agos390/qeth: fix SETIP command handling
Julian Wiedmann [Fri, 9 Feb 2018 10:03:50 +0000 (11:03 +0100)]
s390/qeth: fix SETIP command handling

send_control_data() applies some special handling to SETIP v4 IPA
commands. But current code parses *all* command types for the SETIP
command code. Limit the command code check to IPA commands.

Fixes: 5b54e16f1a54 ("qeth: do not spin for SETIP ip assist command")
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agos390/qeth: fix underestimated count of buffer elements
Ursula Braun [Fri, 9 Feb 2018 10:03:49 +0000 (11:03 +0100)]
s390/qeth: fix underestimated count of buffer elements

For a memory range/skb where the last byte falls onto a page boundary
(ie. 'end' is of the form xxx...xxx001), the PFN_UP() part of the
calculation currently doesn't round up to the next PFN due to an
off-by-one error.
Thus qeth believes that the skb occupies one page less than it
actually does, and may select a IO buffer that doesn't have enough spare
buffer elements to fit all of the skb's data.
HW detects this as a malformed buffer descriptor, and raises an
exception which then triggers device recovery.

Fixes: 2863c61334aa ("qeth: refactor calculation of SBALE count")
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoptr_ring: try vmalloc() when kmalloc() fails
Jason Wang [Fri, 9 Feb 2018 09:45:50 +0000 (17:45 +0800)]
ptr_ring: try vmalloc() when kmalloc() fails

This patch switch to use kvmalloc_array() for using a vmalloc()
fallback to help in case kmalloc() fails.

Reported-by: syzbot+e4d4f9ddd4295539735d@syzkaller.appspotmail.com
Fixes: 2e0ab8ca83c12 ("ptr_ring: array based FIFO for pointers")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoptr_ring: fail early if queue occupies more than KMALLOC_MAX_SIZE
Jason Wang [Fri, 9 Feb 2018 09:45:49 +0000 (17:45 +0800)]
ptr_ring: fail early if queue occupies more than KMALLOC_MAX_SIZE

To avoid slab to warn about exceeded size, fail early if queue
occupies more than KMALLOC_MAX_SIZE.

Reported-by: syzbot+e4d4f9ddd4295539735d@syzkaller.appspotmail.com
Fixes: 2e0ab8ca83c12 ("ptr_ring: array based FIFO for pointers")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge branch 'stmmac-irq-fixes-cleanups'
David S. Miller [Fri, 9 Feb 2018 19:23:04 +0000 (14:23 -0500)]
Merge branch 'stmmac-irq-fixes-cleanups'

Niklas Cassel says:

====================
stmmac irq fixes/cleanups

A couple of small stmmac irq fixes/cleanups.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: stmmac: remove redundant enable of PMT irq
Niklas Cassel [Fri, 9 Feb 2018 16:22:47 +0000 (17:22 +0100)]
net: stmmac: remove redundant enable of PMT irq

For dwmac4, GMAC_INT_DEFAULT_ENABLE already includes
GMAC_INT_PMT_EN, so it is redundant to check if hw->pmt
is set, and if so, setting the bit again.

For dwmac1000, GMAC_INT_DEFAULT_MASK does not include
GMAC_INT_DISABLE_PMT, so it is redundant to check if
hw->pmt is set, and if so, clearing an already cleared bit.

Improve code readability by removing this redundant code.

Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: stmmac: rename GMAC_INT_DEFAULT_MASK for dwmac4
Niklas Cassel [Fri, 9 Feb 2018 16:22:46 +0000 (17:22 +0100)]
net: stmmac: rename GMAC_INT_DEFAULT_MASK for dwmac4

GMAC_INT_DEFAULT_MASK is written to the interrupt enable register.
In previous versions of the IP (e.g. dwmac1000), this register was
instead an interrupt mask register.
To improve clarity and reflect reality, rename GMAC_INT_DEFAULT_MASK
to GMAC_INT_DEFAULT_ENABLE.

Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: stmmac: discard disabled flags in interrupt status register
Niklas Cassel [Fri, 9 Feb 2018 16:22:45 +0000 (17:22 +0100)]
net: stmmac: discard disabled flags in interrupt status register

The interrupt status register in both dwmac1000 and dwmac4 ignores
interrupt enable (for dwmac4) / interrupt mask (for dwmac1000).
Therefore, if we want to check only the bits that can actually trigger
an irq, we have to filter the interrupt status register manually.

Commit 0a764db10337 ("stmmac: Discard masked flags in interrupt status
register") fixed this for dwmac1000. Fix the same issue for dwmac4.

Just like commit 0a764db10337 ("stmmac: Discard masked flags in
interrupt status register"), this makes sure that we do not get
spurious link up/link down prints.

Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoibmvnic: Reset long term map ID counter
Thomas Falcon [Fri, 9 Feb 2018 17:41:09 +0000 (11:41 -0600)]
ibmvnic: Reset long term map ID counter

When allocating RX or TX buffer pools, the driver needs to provide a
unique mapping ID to firmware for each pool. This value is assigned
using a counter which is incremented after a new pool is created. The
ID can be an integer ranging from 1-255. When migrating to a device
that requests a different number of queues, this value was not being
reset properly. As a result, after enough migrations, the counter
exceeded the upper bound and pool creation failed. This is fixed by
resetting the counter to one in this case.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
David S. Miller [Fri, 9 Feb 2018 19:05:10 +0000 (14:05 -0500)]
Merge git://git./pub/scm/linux/kernel/git/bpf/bpf

Daniel Borkmann says:

====================
pull-request: bpf 2018-02-09

The following pull-request contains BPF updates for your *net* tree.

The main changes are:

1) Two fixes for BPF sockmap in order to break up circular map references
   from programs attached to sockmap, and detaching related sockets in
   case of socket close() event. For the latter we get rid of the
   smap_state_change() and plug into ULP infrastructure, which will later
   also be used for additional features anyway such as TX hooks. For the
   second issue, dependency chain is broken up via map release callback
   to free parse/verdict programs, all from John.

2) Fix a libbpf relocation issue that was found while implementing XDP
   support for Suricata project. Issue was that when clang was invoked
   with default target instead of bpf target, then various other e.g.
   debugging relevant sections are added to the ELF file that contained
   relocation entries pointing to non-BPF related sections which libbpf
   trips over instead of skipping them. Test cases for libbpf are added
   as well, from Jesper.

3) Various misc fixes for bpftool and one for libbpf: a small addition
   to libbpf to make sure it recognizes all standard section prefixes.
   Then, the Makefile in bpftool/Documentation is improved to explicitly
   check for rst2man being installed on the system as we otherwise risk
   installing empty man pages; the man page for bpftool-map is corrected
   and a set of missing bash completions added in order to avoid shipping
   bpftool where the completions are only partially working, from Quentin.

4) Fix applying the relocation to immediate load instructions in the
   nfp JIT which were missing a shift, from Jakub.

5) Two fixes for the BPF kernel selftests: handle CONFIG_BPF_JIT_ALWAYS_ON=y
   gracefully in test_bpf.ko module and mark them as FLAG_EXPECTED_FAIL
   in this case; and explicitly delete the veth devices in the two tests
   test_xdp_{meta,redirect}.sh before dismantling the netnses as when
   selftests are run in batch mode, then workqueue to handle destruction
   might not have finished yet and thus veth creation in next test under
   same dev name would fail, from Yonghong.

6) Fix test_kmod.sh to check the test_bpf.ko module path before performing
   an insmod, and fallback to modprobe. Especially the latter is useful
   when having a device under test that has the modules installed instead,
   from Naresh.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge tag 'for-linus-4.16-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 9 Feb 2018 18:07:39 +0000 (10:07 -0800)]
Merge tag 'for-linus-4.16-rc1-tag' of git://git./linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:
 "Only five small fixes for issues when running under Xen"

* tag 'for-linus-4.16-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen: Fix {set,clear}_foreign_p2m_mapping on autotranslating guests
  pvcalls-back: do not return error on inet_accept EAGAIN
  xen-netfront: Fix race between device setup and open
  xen/grant-table: Use put_page instead of free_page
  x86/xen: init %gs very early to avoid page faults with stack protector

6 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Fri, 9 Feb 2018 17:58:37 +0000 (09:58 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/s390/linux

Pull s390 updates from Heiko Carstens:
 "The main thing in this merge is the defense for the Spectre
  vulnerabilities. But there are other updates as well, the changes in
  more detail:

   - An s390 specific implementation of the array_index_mask_nospec
     function to the defense against spectre v1

   - Two patches to utilize the new PPA-12/PPA-13 instructions to run
     the kernel and/or user space with reduced branch predicton.

   - The s390 variant of the 'retpoline' spectre v2 defense called
     'expoline'. There is no return instruction for s390, instead an
     indirect branch is used for function return

     The s390 defense mechanism for indirect branches works by using an
     execute-type instruction with the indirect branch as the target of
     the execute. In effect that turns off the prediction for the
     indirect branch.

   - Scrub registers in entry.S that contain user controlled values to
     prevent the speculative use of these values.

   - Re-add the second parameter for the s390 specific runtime
     instrumentation system call and move the header file to uapi. The
     second parameter will continue to do nothing but older kernel
     versions only accepted valid real-time signal numbers. The details
     will be documented in the man-page for the system call.

   - Corrections and improvements for the s390 specific documentation

   - Add a line to /proc/sysinfo to display the CPU model dependent
     license-internal-code identifier

   - A header file include fix for eadm.

   - An error message fix in the kprobes code.

   - The removal of an outdated ARCH_xxx select statement"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/kconfig: Remove ARCH_WANTS_PROT_NUMA_PROT_NONE select
  s390: introduce execute-trampolines for branches
  s390: run user space and KVM guests with modified branch prediction
  s390: add options to change branch prediction behaviour for the kernel
  s390/alternative: use a copy of the facility bit mask
  s390: add optimized array_index_mask_nospec
  s390: scrub registers on kernel entry and KVM exit
  s390/cio: fix kernel-doc usage
  s390/runtime_instrumentation: re-add signum system call parameter
  s390/cpum_cf: correct counter number of LAST_HOST_TRANSLATIONS
  s390/kprobes: Fix %p uses in error messages
  s390/runtime instrumentation: provide uapi header file
  s390/sysinfo: add and display licensed internal code identifier
  s390/docs: reword airq section
  s390/docs: mention subchannel types
  s390/cmf: fix kerneldoc
  s390/eadm: fix CONFIG_BLOCK include dependency

6 years agoMerge tag 'acpi-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 9 Feb 2018 17:44:25 +0000 (09:44 -0800)]
Merge tag 'acpi-part2-4.16-rc1' of git://git./linux/kernel/git/rafael/linux-pm

Pull more ACPI updates from Rafael Wysocki:
 "These are mostly fixes and cleanups, a few new quirks, a couple of
  updates related to the handling of ACPI tables and ACPICA copyrights
  refreshment.

  Specifics:

   - Update the ACPICA kernel code to upstream revision 20180105
     including:
       * Assorted fixes (Jung-uk Kim)
       * Support for X32 ABI compilation (Anuj Mittal)
       * Update of ACPICA copyrights to 2018 (Bob Moore)

   - Prepare for future modifications to avoid executing the _STA
     control method too early (Hans de Goede)

   - Make the processor performance control library code ignore _PPC
     notifications if they cannot be handled and fix up the C1 idle
     state definition when it is used as a fallback state (Chen Yu,
     Yazen Ghannam)

   - Make it possible to use the SPCR table on x86 and to replace the
     original IORT table with a new one from initrd (Prarit Bhargava,
     Shunyong Yang)

   - Add battery-related quirks for Asus UX360UA and UX410UAK and add
     quirks for table parsing on Dell XPS 9570 and Precision M5530 (Kai
     Heng Feng)

   - Address static checker warnings in the CPPC code (Gustavo Silva)

   - Avoid printing a raw pointer to the kernel log in the smart battery
     driver (Greg Kroah-Hartman)"

* tag 'acpi-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: sbshc: remove raw pointer from printk() message
  ACPI: SPCR: Make SPCR available to x86
  ACPI / CPPC: Use 64-bit arithmetic instead of 32-bit
  ACPI / tables: Add IORT to injectable table list
  ACPI / bus: Parse tables as term_list for Dell XPS 9570 and Precision M5530
  ACPICA: Update version to 20180105
  ACPICA: All acpica: Update copyrights to 2018
  ACPI / processor: Set default C1 idle state description
  ACPI / battery: Add quirk for Asus UX360UA and UX410UAK
  ACPI: processor_perflib: Do not send _PPC change notification if not ready
  ACPI / scan: Use acpi_bus_get_status() to initialize ACPI_TYPE_DEVICE devs
  ACPI / bus: Do not call _STA on battery devices with unmet dependencies
  PCI: acpiphp_ibm: prepare for acpi_get_object_info() no longer returning status
  ACPI: export acpi_bus_get_status_handle()
  ACPICA: Add a missing pair of parentheses
  ACPICA: Prefer ACPI_TO_POINTER() over ACPI_ADD_PTR()
  ACPICA: Avoid NULL pointer arithmetic
  ACPICA: Linux: add support for X32 ABI compilation
  ACPI / video: Use true for boolean value

6 years agoMerge tag 'pm-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Fri, 9 Feb 2018 17:40:33 +0000 (09:40 -0800)]
Merge tag 'pm-part2-4.16-rc1' of git://git./linux/kernel/git/rafael/linux-pm

Pull more power management updates from Rafael Wysocki:
 "These are mostly fixes and cleanups and removal of the no longer
  needed at32ap-cpufreq driver.

  Specifics:

   - Drop the at32ap-cpufreq driver which is useless after the removal
     of the corresponding arch (Corentin LABBE).

   - Fix a regression from the 4.14 cycle in the APM idle driver by
     making it initialize the polling state properly (Rafael Wysocki).

   - Fix a crash on failing system suspend due to a missing check in the
     cpufreq core (Bo Yan).

   - Make the intel_pstate driver initialize the hardware-managed
     P-state control (HWP) feature on CPU0 upon resume from system
     suspend if HWP had been enabled before the system was suspended
     (Chen Yu).

   - Fix up the SCPI cpufreq driver after recent changes (Sudeep Holla,
     Wei Yongjun).

   - Avoid pointer subtractions during frequency table walks in cpufreq
     (Dominik Brodowski).

   - Avoid the check for ProcFeedback in ST/CZ in the cpufreq driver for
     AMD processors and add a MODULE_ALIAS for cpufreq on ARM IMX (Akshu
     Agrawal, Nicolas Chauvet).

   - Fix the prototype of swsusp_arch_resume() on x86 (Arnd Bergmann).

   - Fix up the parsing of power domains DT data (Ulf Hansson)"

* tag 'pm-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  arm: imx: Add MODULE_ALIAS for cpufreq
  cpufreq: Add and use cpufreq_for_each_{valid_,}entry_idx()
  cpufreq: intel_pstate: Enable HWP during system resume on CPU0
  cpufreq: scpi: fix error return code in scpi_cpufreq_init()
  x86: hibernate: fix swsusp_arch_resume() prototype
  PM / domains: Fix up domain-idle-states OF parsing
  cpufreq: scpi: fix static checker warning cdev isn't an ERR_PTR
  cpufreq: remove at32ap-cpufreq
  cpufreq: AMD: Ignore the check for ProcFeedback in ST/CZ
  x86: PM: Make APM idle driver initialize polling state
  cpufreq: Skip cpufreq resume if it's not suspended

6 years agoSUNRPC: Don't call __UDPX_INC_STATS() from a preemptible context
Trond Myklebust [Fri, 9 Feb 2018 14:39:42 +0000 (09:39 -0500)]
SUNRPC: Don't call __UDPX_INC_STATS() from a preemptible context

Calling __UDPX_INC_STATS() from a preemptible context leads to a
warning of the form:

 BUG: using __this_cpu_add() in preemptible [00000000] code: kworker/u5:0/31
 caller is xs_udp_data_receive_workfn+0x194/0x270
 CPU: 1 PID: 31 Comm: kworker/u5:0 Not tainted 4.15.0-rc8-00076-g90ea9f1 #2
 Workqueue: xprtiod xs_udp_data_receive_workfn
 Call Trace:
  dump_stack+0x85/0xc1
  check_preemption_disabled+0xce/0xe0
  xs_udp_data_receive_workfn+0x194/0x270
  process_one_work+0x318/0x620
  worker_thread+0x20a/0x390
  ? process_one_work+0x620/0x620
  kthread+0x120/0x130
  ? __kthread_bind_mask+0x60/0x60
  ret_from_fork+0x24/0x30

Since we're taking a spinlock in those functions anyway, let's fix the
issue by moving the call so that it occurs under the spinlock.

Reported-by: kernel test robot <fengguang.wu@intel.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>