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Commit Graph

3646 Commits

Author SHA1 Message Date
Shunqian Zheng
bb4b6201d2 arm64: dts: rockchip: set to CCI clock of RK3399 to 600M
Per testing, this can reduce the memory latency and d8 gets
better scores.

Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-08-26 13:38:46 +02:00
Xing Zheng
0895b3a8fd arm64: dts: rockchip: fix the address map for WDT0 and WDT1
Due to incorrect description in the TRM, the WDTs base address
should be fixed and swap them like this:
WDT0 - 0xff848000
WDT1 - 0xff840000

And, it is right that only WDT0 can generate global software reset.
We will update the TRM to fix it.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-08-26 13:38:37 +02:00
Thomas Petazzoni
98e45c1675 arm64: dts: marvell: describe the PIC and PMU on Armada 7K/8K
This commit adds the necessary Device Tree description for the PIC
interrupt controller and the PMU available in the Marvell Armada 7K and
Armada 8K SoCs.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-08-26 10:57:20 +02:00
Srinivas Kandagatla
69713756f4 arm64: dts: db820c: add support to external sd card.
This patch adds support to external sd card.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-08-25 10:29:00 -05:00
Srinivas Kandagatla
74578565d8 arm64: dts: db820c: add support to SPI on HS
This patch adds support to SPI on HS expansion connector.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-08-25 10:28:59 -05:00
Srinivas Kandagatla
a133f63a35 arm64: dts: db820c: add support to LS-SPI0
This patch adds support to SPI on LS expansion connector.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-08-25 10:28:58 -05:00
Srinivas Kandagatla
d3bb71387a arm64: dts: db820c: add support to I2C on HS
This patch adds support to i2c bus on High speed connector.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-08-25 10:28:57 -05:00
Srinivas Kandagatla
4fe5d83a13 arm64: dts: db820c: add support to LS-I2C1
This patch adds support to LS_I2C1 on LS expansion connector.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-08-25 10:28:57 -05:00
Srinivas Kandagatla
75b6f7b7ab arm64: dts: db820c: add support to LS-I2C0
This patch adds support to LS-I2C0 on LS expansion connector.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-08-25 10:28:56 -05:00
Srinivas Kandagatla
79f734dc28 arm64: dts: db820c: add support to LS-UART0
This patch adds support to 4 pin UART0 on LS expansion connector.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-08-25 10:28:55 -05:00
Srinivas Kandagatla
61e55e5646 arm64: dts: db820c: add basic board support
This patch adds apq8096 db820c basic support with serial port.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-08-25 10:28:38 -05:00
Mark Rutland
fd363bd417 arm64: avoid TLB conflict with CONFIG_RANDOMIZE_BASE
When CONFIG_RANDOMIZE_BASE is selected, we modify the page tables to remap the
kernel at a newly-chosen VA range. We do this with the MMU disabled, but do not
invalidate TLBs prior to re-enabling the MMU with the new tables. Thus the old
mappings entries may still live in TLBs, and we risk violating
Break-Before-Make requirements, leading to TLB conflicts and/or other issues.

We invalidate TLBs when we uninsall the idmap in early setup code, but prior to
this we are subject to issues relating to the Break-Before-Make violation.

Avoid these issues by invalidating the TLBs before the new mappings can be
used by the hardware.

Fixes: f80fb3a3d5 ("arm64: add support for kernel ASLR")
Cc: <stable@vger.kernel.org> # 4.6+
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-08-25 11:11:32 +01:00
Kefeng Wang
7e01e7a109 arm64: dts: hip06: Append sas node
This patch adds sas and relevant nodes for Hip06 D03 board.

Cc: Xiang Chen <chenxiang66@hisilicon.com>
Cc: John Garry <john.garry@huawei.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2016-08-24 16:19:39 +01:00
Kefeng Wang
5350419fba arm64: dts: hip06: Append hns node
There are four ports(2 GE, 2 XGE) in D03 board, append
relevant nodes for them.

Cc: Kejian Yan <yankejian@huawei.com>
Cc: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2016-08-24 16:19:38 +01:00
Kefeng Wang
fb9b80b838 arm64: dts: hip05: kill hip05_hns.dtsi
The dsaf interrupt of hns connects to mbigen, but the mbigen(version 1)
isn't upsteamed. Currently, hip05_hns.dtsi uses mbigen_dsa and it will
never be built, so kill it for now, will add them back and merge them into
hip05.dtsi once mbigen-v1 is accepted.

Cc: Kejian Yan <yankejian@huawei.com>
Cc: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2016-08-24 16:19:37 +01:00
John Stultz
813a731522 arm64: dts: hikey: Add pstore support for HiKey
This patch reserves some memory in the DTS and sets up a
pstore device tree node to enable pstore support on HiKey.

Cc: Kees Cook <keescook@chromium.org>
Cc: Guodong Xu <guodong.xu@linaro.org>
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2016-08-24 16:19:36 +01:00
John Stultz
330fd87c21 arm64: dts: hikey: Add hikey support for syscon-reboot-mode
Add support to hikey dts for the syscon-reboot-mode driver.

After trying an approach using a sram driver and node, a number
of issues cropped up which would make it so we would be
duplicating a lot of extra syscon infrastructure in order to
support mfds on sram. After talking with Bjorn, using the
syscon driver for this seems like an better choice.

Cc: Andy Yan <andy.yan@rock-chips.com>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: Guodong Xu <guodong.xu@linaro.org>
Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2016-08-24 16:19:35 +01:00
Xinliang Liu
b77c23a084 arm64: dts: Add HDMI node for hi6220-hikey
Add adv7533 HDMI DT node for HiKey board.

Cc: Guodong Xu <guodong.xu@linaro.org>
Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org
Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2016-08-24 16:19:34 +01:00
Xinliang Liu
3814b61bd7 arm64: dts: Add display subsystem DT nodes for hi6220-hikey
Add ade and dsi DT nodes for hikey board.

Cc: Guodong Xu <guodong.xu@linaro.org>
Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org
Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2016-08-24 16:19:34 +01:00
Jorge Ramirez-Ortiz
1b9c7b2d63 arm64: dts: set UART1 clock frequency to 150MHz
Enable support for higher baud rates (up to 3Mbps) in UART1 - required
for bluetooth transfers.

Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Tested-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Reviewed-by: Michael Turquette <mturquette@baylibre.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2016-08-24 16:17:49 +01:00
Jon Hunter
988232412e arm64: tegra: Select PM_GENERIC_DOMAINS
Enable PM_GENERIC_DOMAINS for 64-bit Tegra devices. This is required to
ensure that devices dependent upon a particular power domain are probed
only after that power domain has been powered up.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-08-24 17:11:44 +02:00
Jon Hunter
4d3457826a arm64: tegra: Enable XUSB controller on Tegra210 Smaug
Enable the XUSB controller on Tegra210 Smaug. The Smaug has a USB Type-C
connector with one of the USB2.0 lanes and one of the USB3.0 lanes
populated.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-08-24 16:56:52 +02:00
Jon Hunter
3ce510a06a arm64: tegra: Add the various audio devices for Tegra210 Smaug
The Tegra210 Smaug includes the Realtek RT5677 audio codec, Nuvoton
NAU8825 headset codec and the Maxim MAX98357a audio amplifier. Add
the nodes for these devices for the Tegra210 Smaug.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
[treding@nvidia.com: use interrupts property consistently]
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-08-24 16:55:32 +02:00
Jon Hunter
b4f10afdad arm64: tegra: Enable DPAUX for Tegra210 Smaug
The Tegra210 Smaug uses I2C6 for interfacing to various audio chips.
I2C6 shares pads with the DPAUX interface and to allow I2C6 to request
the pads owned by DPAUX, the DPAUX device needs to be enabled. Enable
DPAUX for Tegra210 Smaug.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-08-24 16:53:32 +02:00
Jon Hunter
9fab004dcb arm64: tegra: Add ACONNECT, ADMA and AGIC nodes Tegra210 Smaug
Populate the ACONNECT, ADMA and AGIC nodes for Tegra210 Smaug which
are used for audio use-cases.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-08-24 16:52:52 +02:00
Jon Hunter
96d1f078ff arm64: tegra: Add SOR power-domain for Tegra210
Add node for SOR power-domain for Tegra210 and populate the SOR
power-domain phandle for DPAUX, DSI, MIPI-CAL and SOR and nodes that are
dependent on this power-domain.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-08-24 16:51:26 +02:00
Jon Hunter
19e61213f6 arm64: tegra: Add ADMA node for Tegra210
Populate the ADMA node for Tegra210. The ADMA is used by the Audio
Processing Engine (APE) on Tegra210 for moving data between the APE
and system memory.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-08-24 16:49:57 +02:00
Jon Hunter
bcdbde4335 arm64: tegra: Add AGIC node for Tegra210
Populate the Audio GIC (AGIC) node for Tegra210. This interrupt
controller is used by the Audio Processing Engine to route interrupts
to the main CPU interrupt controller. The AGIC is based on the ARM
GIC400 and so uses the clock name "clk" as specified by the GIC binding
document for GIC400 devices.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-08-24 16:37:08 +02:00
Jon Hunter
98313c940a arm64: tegra: Drop clock and reset names for XUSB powergates
Drop the clock and reset names for the Tegra210 XUSB powergates because
these are not currently used and not required by the Tegra PMC binding
documentation.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-08-24 16:32:28 +02:00
Caesar Wang
fe99621515 arm64: dts: rockchip: add the saradc for rk3399
This patch adds saradc needed information on rk3399 SoCs.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-08-24 11:29:07 +02:00
Rajendra Nayak
7422ee8e54 arm64: dts: msm8996: Add thermal zones, tsens and qfprom nodes
Add thermal zones and tsens node

Acked-by: Eduardo Valentin <edubezval@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-08-23 22:57:35 -05:00
Rajendra Nayak
4f6e4892ea arm64: dts: msm8916: Add thermal zones, tsens and qfprom nodes
Add thermal zones, tsens and qfprom nodes

Acked-by: Eduardo Valentin <edubezval@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-08-23 22:57:35 -05:00
Marc Zyngier
0f6625fd00 arm64: dts: qcom: Fix broken interrupt trigger settings
When a device uses the GIC as its interrupt controller and generates
SPIs, only the values 1 (edge rising) and 4 (level high) are legal.

Anything else is just plain wrong (can't be programmed into the HW),
and leads to aborted driver probes (USB doesn't work with 4.8-rc1
on a Dragonboard 410C).

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-08-23 22:57:35 -05:00
Bjorn Andersson
e95c08f45a arm64: dts: qcom: msm8916: Add tcsr syscon
The TCSR memory segment includes various functionality, among other
things the halt-registers for the Hexagon.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-08-23 22:57:35 -05:00
Bjorn Andersson
fb3013d3fc arm64: dts: qcom: msm8916: Make scm a reset-controller
On msm8916 SCM acts as a controller for the MSS_RESET found in the GCC,
update the DT node so that we can address this.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-08-23 22:57:35 -05:00
Bjorn Andersson
d9a3e0c563 arm64: dts: qcom: msm8916: Add mba memory reserve
The modem boot authenticator needs space to play in, this is supposed to
be relocatable and as such could later be replaced with a dynamically
allocated chunk of memory. But let's give it a reserve for now, as we
know that works.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-08-23 22:57:35 -05:00
Bjorn Andersson
1fb47e0a9b arm64: dts: qcom: msm8916: Add smsm and smp2p nodes
This patch adds the smsm and smp2p nodes for the hexagon and wcnss
cores.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-08-23 22:57:35 -05:00
Philipp Zabel
7475e27b45 arm64: dts: mt8173-evb: enable HDMI output
Add an HDMI connector node and enable the devices that are part of the
HDMI display path: cec, dpi0, hdmi_phy, and hdmi0.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-08-22 19:12:08 +02:00
CK Hu
a10b57f44a arm64: dts: mt8173: Add HDMI related nodes
This patch adds the device nodes for the HDMI encoder, HDMI PHY,
and HDMI CEC modules.

Signed-off-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Cawa Cheng <cawa.cheng@mediatek.com>
Signed-off-by: Jie Qiu <jie.qiu@mediatek.com>
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-08-22 19:12:07 +02:00
Punnaiah Choudary Kalluri
908c9e733b ARM64: zynqmp: Correct the watchdog timer interrupt number
Corrected the watchdog timer interrupt number.
Origin value was for CSUPMU watchdog.

Signed-off-by: Punnaiah Choudary Kalluri <punnaia@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-08-19 12:31:36 +02:00
Michal Simek
886e7ddda0 ARM64: zynqmp: Add missing interrupt-parent to PMU node
ZynqMP is not using global interrupt-parent setting that's why
it has to be listed in every node separately. PMU node missed it and
this patch is adding it.

Reported-by: John Linn <John.Linn@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-08-19 12:29:11 +02:00
Michal Simek
78b83b8cb3 ARM64: zynqmp: Add PCIe node
Add PCIe node with prefetchable memory which goes beyond 4GB.

Signed-off-by: Bharat Kumar Gogada <bharatku@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-08-19 12:29:10 +02:00
Michal Simek
7393fd8691 ARM64: zynqmp: Use 64bit size cell format
Use 64bit size cell format instead of 32bit for memory
description. Change 64bit sizes also for all others IPs.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-08-19 12:29:00 +02:00
Alexander Graf
e753dc0359 ARM64: zynqmp: Align gic ranges for 64k in device tree
The GIC ranges in the zynqmp device tree are only 4kb aligned. Since
commit 12e14066f we automatically deal with aliases GIC regions though,
so we can map them transparently into guests even on 64kb page size
systems.

This patch makes use of that features and sets GICC and GICV to 64kb
aligned and sized regions.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-08-19 12:27:20 +02:00
Catalin Marinas
a93a4d6232 arm64: Fix shift warning in arch/arm64/mm/dump.c
When building with 48-bit VAs and 16K page configuration, it's possible
to get the following warning when building the arm64 page table dumping
code:

arch/arm64/mm/dump.c: In function ‘walk_pud’:
arch/arm64/mm/dump.c:274:102: warning: right shift count >= width of type [-Wshift-count-overflow]

This is because pud_offset(pgd, 0) performs a shift to the right by 36
while the value 0 has the type 'int' by default, therefore 32-bit.

This patch modifies all the p*_offset() uses in arch/arm64/mm/dump.c to
use 0UL for the address argument.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-08-18 12:38:11 +01:00
Paolo Bonzini
2eeb321fd2 KVM/ARM Fixes for v4.8-rc3
This tag contains the following fixes on top of v4.8-rc1:
  - ITS init issues
  - ITS error handling issues
  - ITS IRQ leakage fix
  - Plug a couple of ITS race conditions
  - An erratum workaround for timers
  - Some removal of misleading use of errors and comments
  - A fix for GICv3 on 32-bit guests
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Merge tag 'kvm-arm-for-v4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/ARM Fixes for v4.8-rc3

This tag contains the following fixes on top of v4.8-rc1:
 - ITS init issues
 - ITS error handling issues
 - ITS IRQ leakage fix
 - Plug a couple of ITS race conditions
 - An erratum workaround for timers
 - Some removal of misleading use of errors and comments
 - A fix for GICv3 on 32-bit guests
2016-08-18 12:19:19 +02:00
Ard Biesheuvel
bc9f3d7788 arm64: kernel: avoid literal load of virtual address with MMU off
Literal loads of virtual addresses are subject to runtime relocation when
CONFIG_RELOCATABLE=y, and given that the relocation routines run with the
MMU and caches enabled, literal loads of relocated values performed with
the MMU off are not guaranteed to return the latest value unless the
memory covering the literal is cleaned to the PoC explicitly.

So defer the literal load until after the MMU has been enabled, just like
we do for primary_switch() and secondary_switch() in head.S.

Fixes: 1e48ef7fcc ("arm64: add support for building vmlinux as a relocatable PIE binary")
Cc: <stable@vger.kernel.org> # 4.6+
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-08-17 17:37:37 +01:00
Catalin Marinas
bfe6c8a89e arm64: Fix NUMA build error when !CONFIG_ACPI
Since asm/acpi.h is only included by linux/acpi.h when CONFIG_ACPI is
enabled, disabling the latter leads to the following build error on
arm64:

arch/arm64/mm/numa.c: In function ‘arm64_numa_init’:
arch/arm64/mm/numa.c:395:24: error: ‘arm64_acpi_numa_init’ undeclared (first use in this function)
   if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))

This patch include the asm/acpi.h explicitly in arch/arm64/mm/numa.c for
the arm64_acpi_numa_init() definition.

Fixes: d8b47fca8c ("arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT")
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-08-17 17:16:58 +01:00
Vladimir Murzin
f7f6f2d94f arm64: KVM: report configured SRE value to 32-bit world
After commit b34f2bc ("arm64: KVM: Make ICC_SRE_EL1 access return the
configured SRE value") we report SRE value to 64-bit guest, but 32-bit
one still handled as RAZ/WI what leads to funny promise we do not keep:

"GICv3: GIC: unable to set SRE (disabled at EL2), panic ahead"

Instead, return the actual value of the ICC_SRE_EL1 register that the
guest should see.

 [ Tweaked commit message - Christoffer ]

Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2016-08-17 12:46:23 +02:00
Vladimir Murzin
b63bebe235 arm64: KVM: remove misleading comment on pmu status
Comment about how PMU access is handled is not relavant since v4.6
where proper PMU support was added in.

Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2016-08-17 12:46:21 +02:00
Marc Zyngier
674e701270 arm64: Document workaround for Cortex-A72 erratum #853709
We already have a workaround for Cortex-A57 erratum #852523,
but Cortex-A72 r0p0 to r0p2 do suffer from the same issue
(known as erratum #853709).

Let's document the fact that we already handle this.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2016-08-17 12:23:47 +02:00
Frank Wang
1d3bc1d6c9 arm64: dts: rockchip: configure usb2-phy support for rk3399-evb
Add vcc5v0_host regulator for usb2-phy and enable host-port support.

Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-08-17 11:58:56 +02:00
Frank Wang
103e9f8537 arm64: dts: rockchip: add usb2-phy support for rk3399
Add usb2-phy nodes and specify phys phandle for ehci.

Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-08-17 11:47:56 +02:00
Stephen Warren
016655121e arm64: tegra: Simplify Tegra210 GPIO compatible value
The compatible value need only include an entry for the specific HW
generation, plus the oldest HW version that introduced changes it is
backwards-compatible with; intermediate versions aren't necessary. Since
Tegra124 GPIO is backwards-compatible with Tegra30 GPIO, there's no need
to include the Tegra124 value in the Tegra210 DTS. This makes the kernel
DT better match the copy of the DT files included in U-Boot.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-08-16 15:10:40 +02:00
Linus Torvalds
120c54751b arm64 fixes:
- Support for nr_cpus= command line argument (maxcpus was previously
   changed to allow secondary CPUs to be hot-plugged)
 
 - ARM PMU interrupt handling fix
 
 - Fix potential TLB conflict in the hibernate code
 
 - Improved handling of EL1 instruction aborts (better error reporting)
 
 - Removal of useless jprobes code for stack saving/restoring
 
 - defconfig updates
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

 - support for nr_cpus= command line argument (maxcpus was previously
   changed to allow secondary CPUs to be hot-plugged)

 - ARM PMU interrupt handling fix

 - fix potential TLB conflict in the hibernate code

 - improved handling of EL1 instruction aborts (better error reporting)

 - removal of useless jprobes code for stack saving/restoring

 - defconfig updates

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: defconfig: enable CONFIG_LOCALVERSION_AUTO
  arm64: defconfig: add options for virtualization and containers
  arm64: hibernate: handle allocation failures
  arm64: hibernate: avoid potential TLB conflict
  arm64: Handle el1 synchronous instruction aborts cleanly
  arm64: Remove stack duplicating code from jprobes
  drivers/perf: arm-pmu: Fix handling of SPI lacking "interrupt-affinity" property
  drivers/perf: arm-pmu: convert arm_pmu_mutex to spinlock
  arm64: Support hard limit of cpu count by nr_cpus
2016-08-13 19:29:46 -07:00
Masahiro Yamada
53fb45d3df arm64: defconfig: enable CONFIG_LOCALVERSION_AUTO
When CONFIG_LOCALVERSION_AUTO is disabled, the version string is
just a tag name (or with a '+' appended if HEAD is not a tagged
commit).

During the development (and especially when git-bisecting), longer
version string would be helpful to identify the commit we are running.

This is a default y option, so drop the unset to enable it.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-08-12 19:08:48 +01:00
Riku Voipio
2323439fd0 arm64: defconfig: add options for virtualization and containers
Enable options commonly needed by popular virtualization
and container applications. Use modules when possible to
avoid too much overhead for users not interested.

- add namespace and cgroup options needed
- add seccomp - optional, but enhances Qemu etc
- bridge, nat, veth, macvtap and multicast for routing
  guests and containers
- btfrs and overlayfs modules for container COW backends
- while near it, make fuse a module instead of built-in.

Generated with make saveconfig and dropping unrelated spurious
change hunks while commiting. bloat-o-meter old-vmlinux vmlinux:

add/remove: 905/390 grow/shrink: 767/229 up/down: 183513/-94861 (88652)
....
Total: Before=10515408, After=10604060, chg +0.84%

Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-08-12 19:08:47 +01:00
Mark Rutland
dfbca61af0 arm64: hibernate: handle allocation failures
In create_safe_exec_page(), we create a copy of the hibernate exit text,
along with some page tables to map this via TTBR0. We then install the
new tables in TTBR0.

In swsusp_arch_resume() we call create_safe_exec_page() before trying a
number of operations which may fail (e.g. copying the linear map page
tables). If these fail, we bail out of swsusp_arch_resume() and return
an error code, but leave TTBR0 as-is. Subsequently, the core hibernate
code will call free_basic_memory_bitmaps(), which will free all of the
memory allocations we made, including the page tables installed in
TTBR0.

Thus, we may have TTBR0 pointing at dangling freed memory for some
period of time. If the hibernate attempt was triggered by a user
requesting a hibernate test via the reboot syscall, we may return to
userspace with the clobbered TTBR0 value.

Avoid these issues by reorganising swsusp_arch_resume() such that we
have no failure paths after create_safe_exec_page(). We also add a check
that the zero page allocation succeeded, matching what we have for other
allocations.

Fixes: 82869ac57b ("arm64: kernel: Add support for hibernate/suspend-to-disk")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: James Morse <james.morse@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: <stable@vger.kernel.org> # 4.7+
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-08-12 19:08:33 +01:00
Mark Rutland
0194e760f7 arm64: hibernate: avoid potential TLB conflict
In create_safe_exec_page we install a set of global mappings in TTBR0,
then subsequently invalidate TLBs. While TTBR0 points at the zero page,
and the TLBs should be free of stale global entries, we may have stale
ASID-tagged entries (e.g. from the EFI runtime services mappings) for
the same VAs. Per the ARM ARM these ASID-tagged entries may conflict
with newly-allocated global entries, and we must follow a
Break-Before-Make approach to avoid issues resulting from this.

This patch reworks create_safe_exec_page to invalidate TLBs while the
zero page is still in place, ensuring that there are no potential
conflicts when the new TTBR0 value is installed. As a single CPU is
online while this code executes, we do not need to perform broadcast TLB
maintenance, and can call local_flush_tlb_all(), which also subsumes
some barriers. The remaining assembly is converted to use write_sysreg()
and isb().

Other than this, we safely manipulate TTBRs in the hibernate dance. The
code we install as part of the new TTBR0 mapping (the hibernated
kernel's swsusp_arch_suspend_exit) installs a zero page into TTBR1,
invalidates TLBs, then installs its preferred value. Upon being restored
to the middle of swsusp_arch_suspend, the new image will call
__cpu_suspend_exit, which will call cpu_uninstall_idmap, installing the
zero page in TTBR0 and invalidating all TLB entries.

Fixes: 82869ac57b ("arm64: kernel: Add support for hibernate/suspend-to-disk")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: James Morse <james.morse@arm.com>
Tested-by: James Morse <james.morse@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: <stable@vger.kernel.org> # 4.7+
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-08-12 18:46:29 +01:00
Laura Abbott
9adeb8e72d arm64: Handle el1 synchronous instruction aborts cleanly
Executing from a non-executable area gives an ugly message:

lkdtm: Performing direct entry EXEC_RODATA
lkdtm: attempting ok execution at ffff0000084c0e08
lkdtm: attempting bad execution at ffff000008880700
Bad mode in Synchronous Abort handler detected on CPU2, code 0x8400000e -- IABT (current EL)
CPU: 2 PID: 998 Comm: sh Not tainted 4.7.0-rc2+ #13
Hardware name: linux,dummy-virt (DT)
task: ffff800077e35780 ti: ffff800077970000 task.ti: ffff800077970000
PC is at lkdtm_rodata_do_nothing+0x0/0x8
LR is at execute_location+0x74/0x88

The 'IABT (current EL)' indicates the error but it's a bit cryptic
without knowledge of the ARM ARM. There is also no indication of the
specific address which triggered the fault. The increase in kernel
page permissions makes hitting this case more likely as well.
Handling the case in the vectors gives a much more familiar looking
error message:

lkdtm: Performing direct entry EXEC_RODATA
lkdtm: attempting ok execution at ffff0000084c0840
lkdtm: attempting bad execution at ffff000008880680
Unable to handle kernel paging request at virtual address ffff000008880680
pgd = ffff8000089b2000
[ffff000008880680] *pgd=00000000489b4003, *pud=0000000048904003, *pmd=0000000000000000
Internal error: Oops: 8400000e [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 997 Comm: sh Not tainted 4.7.0-rc1+ #24
Hardware name: linux,dummy-virt (DT)
task: ffff800077f9f080 ti: ffff800008a1c000 task.ti: ffff800008a1c000
PC is at lkdtm_rodata_do_nothing+0x0/0x8
LR is at execute_location+0x74/0x88

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-08-12 17:58:48 +01:00
Linus Torvalds
d3396e1e4e ARM: SoC fixes
A couple of bug fixes have come in for v4.8 so far. Since the first few were
 originally meant to go into -rc1 (but didn't get sent in time for travel
 reasons), the branch is unfortunately based on top of a commit in the
 middle of the merge window rather than -rc1.
 
 Content-wise we have
 
 - A fix for the last remaining broken build in kernelci,
   getting mach-shmobile to build again with SMP disabled
 - A fix for a realview regression that broke real hardware but
   not the qemu model that everyone uses in practice (needed
   for v4.7 as well)
 - A merge conflict fix for Tegra that also broke v4.7
 - Two Kconfig fixes for arm64 build regressions
 - A couple of arm32 build warning fixes (all harmless)
 - Fixing the RTC on Exynos7 Espresso (which apparently
   never worked right)
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "A couple of bug fixes have come in for v4.8 so far.  Since the first
  few were originally meant to go into -rc1 (but didn't get sent in time
  for travel reasons), the branch is unfortunately based on top of a
  commit in the middle of the merge window rather than -rc1.

  Content-wise we have:

   - a fix for the last remaining broken build in kernelci, getting
     mach-shmobile to build again with SMP disabled

   - a fix for a realview regression that broke real hardware but not
     the qemu model that everyone uses in practice (needed for v4.7 as
     well)

   - a merge conflict fix for Tegra that also broke v4.7

   - two Kconfig fixes for arm64 build regressions

   - a couple of arm32 build warning fixes (all harmless)

   - fix the RTC on Exynos7 Espresso (which apparently never worked
     right)"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  Merge tag 'pxa-fixes-v4.8' of https://github.com/rjarzmik/linux into randconfig-4.8
  arm64: Kconfig: select HISILICON_IRQ_MBIGEN only if PCI is selected
  arm64: Kconfig: select ALPINE_MSI only if PCI is selected
  ARM: dts: realview: Fix PBX-A9 cache description
  ARM: tegra: fix erroneous address in dts
  ARM: dts: add syscon compatible string for AP syscon
  ARM: dts: add syscon compatible string for CP syscon
  ARM: oxnas: select reset controller framework
  ARM: hide mach-*/ include for ARM_SINGLE_ARMV7M
  ARM: don't include removed directories
  Revert "ARM: aspeed: adapt defconfigs for new CONFIG_PRINTK_TIME"
  ARM: shmobile: don't call platform_can_secondary_boot on UP
  MAINTAINER: alpine: add a mailing list
  ARM: do away with final ARCH_REQUIRE_GPIOLIB
  arm64: dts: Fix RTC by providing rtc_src clock
2016-08-11 14:14:23 -07:00
Andy Yan
2e9e2863c7 arm64: dts: rockchip: add syscon-reboot-mode DT node
Add syscon-reboot-mode driver DT node for rk3368 platform

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Tested-by: Caesar Wang <caesar.upstream@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-08-11 20:05:49 +02:00
David A. Long
ad05711cec arm64: Remove stack duplicating code from jprobes
Because the arm64 calling standard allows stacked function arguments to be
anywhere in the stack frame, do not attempt to duplicate the stack frame for
jprobes handler functions.

Documentation changes to describe this issue have been broken out into a
separate patch in order to simultaneously address them in other
architecture(s).

Signed-off-by: David A. Long <dave.long@linaro.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-08-11 17:38:16 +01:00
Sudeep Holla
f9db43bc29 arm64: Kconfig: select HISILICON_IRQ_MBIGEN only if PCI is selected
Even when PCI is disabled, ARCH_HISI selects HISILICON_IRQ_MBIGEN
triggerring the following config warning:

warning: (ARM64 && HISILICON_IRQ_MBIGEN) selects ARM_GIC_V3_ITS which
	has unmet direct dependencies (PCI && PCI_MSI)

This patch makes selection of HISILICON_IRQ_MBIGEN conditional on PCI.

Cc: Ma Jun <majun258@huawei.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-08-10 22:58:12 +02:00
Sudeep Holla
5a3f75a4b2 arm64: Kconfig: select ALPINE_MSI only if PCI is selected
Even when PCI is disabled, ARCH_ALPINE selects ALPINE_MSI triggerring
the following config warning:

warning: (ARCH_ALPINE) selects ALPINE_MSI which has unmet direct
		dependencies (PCI)

This patch makes selection of ALPINE_MSI conditional on PCI.

Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-08-10 22:58:11 +02:00
Krzysztof Kozlowski
36d1c9cd07 arm64: dts: exynos: Use human-friendly symbols for timer interrupt flags
Replace hex flags with human-readable symbols from arm-gic.h header
which makes it easier to recognize what is configured.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-08-10 11:09:46 +02:00
Kefeng Wang
50ee91bdef arm64: Support hard limit of cpu count by nr_cpus
Enable the hard limit of cpu count by set boot options nr_cpus=x
on arm64, and make a minor change about message when total number
of cpu exceeds the limit.

Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reported-by: Shiyuan Hu <hushiyuan@huawei.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-08-09 11:00:44 +01:00
Linus Torvalds
1eccfa090e Implements HARDENED_USERCOPY verification of copy_to_user/copy_from_user
bounds checking for most architectures on SLAB and SLUB.
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Merge tag 'usercopy-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull usercopy protection from Kees Cook:
 "Tbhis implements HARDENED_USERCOPY verification of copy_to_user and
  copy_from_user bounds checking for most architectures on SLAB and
  SLUB"

* tag 'usercopy-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  mm: SLUB hardened usercopy support
  mm: SLAB hardened usercopy support
  s390/uaccess: Enable hardened usercopy
  sparc/uaccess: Enable hardened usercopy
  powerpc/uaccess: Enable hardened usercopy
  ia64/uaccess: Enable hardened usercopy
  arm64/uaccess: Enable hardened usercopy
  ARM: uaccess: Enable hardened usercopy
  x86/uaccess: Enable hardened usercopy
  mm: Hardened usercopy
  mm: Implement stack frame object validation
  mm: Add is_migrate_cma_page
2016-08-08 14:48:14 -07:00
Yendapally Reddy Dhananjaya Reddy
5072ed1fa2 arm64: dts: Add PWM DT node for NS2
Add device tree entry for PWM support for Broadcom Northstar 2 SoC.

Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2016-08-08 11:03:58 -07:00
Thomas Petazzoni
ec03445c9e arm64: dts: marvell: add description for the Armada 8040 dev board
This commit adds a Device Tree description for the Marvell Armada 8040
Development Board. It features a quad-core Cortex A72 Armada 8040 SoC,
with a large number of peripherals: dual Gigabit, dual 10 GBit, 6 PCIe
interfaces, 6 SATA ports, 4 USB 3.0 ports, and more.

Only a subset of the functionalities are supported so far, and
additional features will be progressively enabled in the future.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-08-08 17:40:09 +02:00
Thomas Petazzoni
4eef78a009 arm64: dts: marvell: add description for the slave CP110 in Armada 8K
The Armada 8K platforms (8020 and 8040) have two CP110 HW blocks: one
master, one slave. So far, only the master CP110 was described. This
commit adds the Device Tree description for the slave CP110, and hooks
it up in the DT description of the Armada 8020 and Armada 8040 SoCs.

The slave CP110 description is somewhat similar to the master CP110
description except for a number of things like register offsets,
interrupt numbers, references to clocks, etc.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-08-08 17:40:03 +02:00
Shawn Lin
e7b47caf30 arm64: dts: rockchip: remove broken-cd from sdio0
commit 1ade61c141 ("arm64: dts: rockchip: remove broken-cd
from emmc and sdio") was intended to remove the abuse of
broken-cd property from mmc. But somehow it forgot to remove
this property from sdio0 node. Let's remove it now.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-08-08 10:57:04 +02:00
Matthias Brugger
6dcf4eabcf arm64: dts: rockchip: Add basic support for orion-r68
This patch adds basic support for the Tronsmart orion r86 set-top-box.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-08-08 10:57:04 +02:00
Elaine Zhang
807a2371d3 arm64: dts: rockchip: add the power domain node for rk3399
In order to meet low power requirements, a power management unit (PMU) is
designed for controlling power resources in RK3399. The RK3399 PMU is
dedicated for managing the power of the whole chip.

1. add pd node for RK3399 Soc
2. create power domain tree
3. add qos node for domain

From the DT/binds and driver can get more detail information:
The driver:
        drivers/soc/rockchip/pm_domains.c
The document:
        Documentation/devicetree/bindings/soc/rockchip/power_domain.txt

Note:
As the TRM lists many voltage domains and power domains, then this patch
adds some domains for driver. Due to some domains
(e.g. emmc, usb, core)...We can't turned off it on
bootup, or says some device driver can't handle the power domain enough.
Maybe We will add more other domains in the future or later.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Cc: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-08-08 10:57:04 +02:00
Linus Torvalds
80fac0f577 * ARM bugfix and MSI injection support
* x86 nested virt tweak and OOPS fix
 * Simplify pvclock code (vdso bits acked by Andy Lutomirski).
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull more KVM updates from Paolo Bonzini:
 - ARM bugfix and MSI injection support
 - x86 nested virt tweak and OOPS fix
 - Simplify pvclock code (vdso bits acked by Andy Lutomirski).

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  nvmx: mark ept single context invalidation as supported
  nvmx: remove comment about missing nested vpid support
  KVM: lapic: fix access preemption timer stuff even if kernel_irqchip=off
  KVM: documentation: fix KVM_CAP_X2APIC_API information
  x86: vdso: use __pvclock_read_cycles
  pvclock: introduce seqcount-like API
  arm64: KVM: Set cpsr before spsr on fault injection
  KVM: arm: vgic-irqfd: Workaround changing kvm_set_routing_entry prototype
  KVM: arm/arm64: Enable MSI routing
  KVM: arm/arm64: Enable irqchip routing
  KVM: Move kvm_setup_default/empty_irq_routing declaration in arch specific header
  KVM: irqchip: Convey devid to kvm_set_msi
  KVM: Add devid in kvm_kernel_irq_routing_entry
  KVM: api: Pass the devid in the msi routing entry
2016-08-06 09:18:21 -04:00
Linus Torvalds
194d6ad32e arm64 fixes:
- Fix HugeTLB leak due to CoW and PTE_RDONLY mismatch
 - Avoid accessing unmapped FDT fields when checking validity
 - Correctly account for vDSO AUX entry in ARCH_DLINFO
 - Fix kallsyms with absolute expressions in linker script
 - Kill unnecessary symbol-based relocs in vmlinux
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:

 - fix HugeTLB leak due to CoW and PTE_RDONLY mismatch

 - avoid accessing unmapped FDT fields when checking validity

 - correctly account for vDSO AUX entry in ARCH_DLINFO

 - fix kallsyms with absolute expressions in linker script

 - kill unnecessary symbol-based relocs in vmlinux

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: Fix copy-on-write referencing in HugeTLB
  arm64: mm: avoid fdt_check_header() before the FDT is fully mapped
  arm64: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO
  arm64: relocatable: suppress R_AARCH64_ABS64 relocations in vmlinux
  arm64: vmlinux.lds: make __rela_offset and __dynsym_offset ABSOLUTE
2016-08-06 08:58:59 -04:00
Krzysztof Kozlowski
00085f1efa dma-mapping: use unsigned long for dma_attrs
The dma-mapping core and the implementations do not change the DMA
attributes passed by pointer.  Thus the pointer can point to const data.
However the attributes do not have to be a bitfield.  Instead unsigned
long will do fine:

1. This is just simpler.  Both in terms of reading the code and setting
   attributes.  Instead of initializing local attributes on the stack
   and passing pointer to it to dma_set_attr(), just set the bits.

2. It brings safeness and checking for const correctness because the
   attributes are passed by value.

Semantic patches for this change (at least most of them):

    virtual patch
    virtual context

    @r@
    identifier f, attrs;

    @@
    f(...,
    - struct dma_attrs *attrs
    + unsigned long attrs
    , ...)
    {
    ...
    }

    @@
    identifier r.f;
    @@
    f(...,
    - NULL
    + 0
     )

and

    // Options: --all-includes
    virtual patch
    virtual context

    @r@
    identifier f, attrs;
    type t;

    @@
    t f(..., struct dma_attrs *attrs);

    @@
    identifier r.f;
    @@
    f(...,
    - NULL
    + 0
     )

Link: http://lkml.kernel.org/r/1468399300-5399-2-git-send-email-k.kozlowski@samsung.com
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Acked-by: Mark Salter <msalter@redhat.com> [c6x]
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> [cris]
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> [drm]
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Joerg Roedel <jroedel@suse.de> [iommu]
Acked-by: Fabien Dessenne <fabien.dessenne@st.com> [bdisp]
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com> [vb2-core]
Acked-by: David Vrabel <david.vrabel@citrix.com> [xen]
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> [xen swiotlb]
Acked-by: Joerg Roedel <jroedel@suse.de> [iommu]
Acked-by: Richard Kuo <rkuo@codeaurora.org> [hexagon]
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
Acked-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> [s390]
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> [avr32]
Acked-by: Vineet Gupta <vgupta@synopsys.com> [arc]
Acked-by: Robin Murphy <robin.murphy@arm.com> [arm64 and dma-iommu]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-08-04 08:50:07 -04:00
Steve Capper
747a70e60b arm64: Fix copy-on-write referencing in HugeTLB
set_pte_at(.) will set or unset the PTE_RDONLY hardware bit before
writing the entry to the table.

This can cause problems with the copy-on-write logic in hugetlb_cow:
 *) hugetlb_cow(.) called to handle a write fault on read only pte,
 *) Before the copy-on-write updates the new page table a call is
    made to pte_same(huge_ptep_get(ptep), pte)), to check for a race,
 *) Because set_pte_at(.) changed the pte, *ptep != pte, and the
    hugetlb_cow(.) code erroneously assumes that it lost the race,
 *) The new page is subsequently freed without being used.

On arm64 this problem only becomes apparent when we apply:
67961f9 mm/hugetlb: fix huge page reserve accounting for private
mappings

When one runs the libhugetlbfs test suite, there are allocation errors
and hugetlbfs pages become erroneously locked in memory as reserved.
(There is a high HugePages_Rsvd: count).

In this patch we introduce pte_same which ignores the PTE_RDONLY bit,
allowing for the libhugetlbfs test suite to pass as expected and
without leaking any reserved HugeTLB pages.

Reported-by: Huang Shijie <shijie.huang@arm.com>
Signed-off-by: Steve Capper <steve.capper@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-08-04 13:41:18 +01:00
Paolo Bonzini
6f49b2f341 KVM/ARM Changes for v4.8 - Take 2
Includes GSI routing support to go along with the new VGIC and a small fix that
 has been cooking in -next for a while.
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Merge tag 'kvm-arm-for-4.8-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/ARM Changes for v4.8 - Take 2

Includes GSI routing support to go along with the new VGIC and a small fix that
has been cooking in -next for a while.
2016-08-04 13:59:56 +02:00
Linus Torvalds
c8d0267efd PCI changes for the v4.8 merge window:
Enumeration
     Move ecam.h to linux/include/pci-ecam.h (Jayachandran C)
     Add parent device field to ECAM struct pci_config_window (Jayachandran C)
     Add generic MCFG table handling (Tomasz Nowicki)
     Refactor pci_bus_assign_domain_nr() for CONFIG_PCI_DOMAINS_GENERIC (Tomasz Nowicki)
     Factor DT-specific pci_bus_find_domain_nr() code out (Tomasz Nowicki)
 
   Resource management
     Add devm_request_pci_bus_resources() (Bjorn Helgaas)
     Unify pci_resource_to_user() declarations (Bjorn Helgaas)
     Implement pci_resource_to_user() with pcibios_resource_to_bus() (microblaze, powerpc, sparc) (Bjorn Helgaas)
     Request host bridge window resources (designware, iproc, rcar, xgene, xilinx, xilinx-nwl) (Bjorn Helgaas)
     Make PCI I/O space optional on ARM32 (Bjorn Helgaas)
     Ignore write combining when mapping I/O port space (Bjorn Helgaas)
     Claim bus resources on MIPS PCI_PROBE_ONLY set-ups (Bjorn Helgaas)
     Remove unicore32 pci=firmware command line parameter handling (Bjorn Helgaas)
     Support I/O resources when parsing host bridge resources (Jayachandran C)
     Add helpers to request/release memory and I/O regions (Johannes Thumshirn)
     Use pci_(request|release)_mem_regions (NVMe, lpfc, GenWQE, ethernet/intel, alx) (Johannes Thumshirn)
     Extend pci=resource_alignment to specify device/vendor IDs (Koehrer Mathias (ETAS/ESW5))
     Add generic pci_bus_claim_resources() (Lorenzo Pieralisi)
     Claim bus resources on ARM32 PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
     Remove ARM32 and ARM64 arch-specific pcibios_enable_device() (Lorenzo Pieralisi)
     Add pci_unmap_iospace() to unmap I/O resources (Sinan Kaya)
     Remove powerpc __pci_mmap_set_pgprot() (Yinghai Lu)
 
   PCI device hotplug
     Allow additional bus numbers for hotplug bridges (Keith Busch)
     Ignore interrupts during D3cold (Lukas Wunner)
 
   Power management
     Enforce type casting for pci_power_t (Andy Shevchenko)
     Don't clear d3cold_allowed for PCIe ports (Mika Westerberg)
     Put PCIe ports into D3 during suspend (Mika Westerberg)
     Power on bridges before scanning new devices (Mika Westerberg)
     Runtime resume bridge before rescan (Mika Westerberg)
     Add runtime PM support for PCIe ports (Mika Westerberg)
     Remove redundant check of pcie_set_clkpm (Shawn Lin)
 
   Virtualization
     Add function 1 DMA alias quirk for Marvell 88SE9182 (Aaron Sierra)
     Add DMA alias quirk for Adaptec 3805 (Alex Williamson)
     Mark Atheros AR9485 and QCA9882 to avoid bus reset (Chris Blake)
     Add ACS quirk for Solarflare SFC9220 (Edward Cree)
 
   MSI
     Fix PCI_MSI dependencies (Arnd Bergmann)
     Add pci_msix_desc_addr() helper (Christoph Hellwig)
     Switch msix_program_entries() to use pci_msix_desc_addr() (Christoph Hellwig)
     Make the "entries" argument to pci_enable_msix() optional (Christoph Hellwig)
     Provide sensible IRQ vector alloc/free routines (Christoph Hellwig)
     Spread interrupt vectors in pci_alloc_irq_vectors() (Christoph Hellwig)
 
   Error Handling
     Bind DPC to Root Ports as well as Downstream Ports (Keith Busch)
     Remove DPC tristate module option (Keith Busch)
     Convert Downstream Port Containment driver to use devm_* functions (Mika Westerberg)
 
   Generic host bridge driver
     Select IRQ_DOMAIN (Arnd Bergmann)
     Claim bus resources on PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
 
   ACPI host bridge driver
     Add ARM64 acpi_pci_bus_find_domain_nr() (Tomasz Nowicki)
     Add ARM64 ACPI support for legacy IRQs parsing and consolidation with DT code (Tomasz Nowicki)
     Implement ARM64 AML accessors for PCI_Config region (Tomasz Nowicki)
     Support ARM64 ACPI-based PCI host controller (Tomasz Nowicki)
 
   Altera host bridge driver
     Check link status before retrain link (Ley Foon Tan)
     Poll for link up status after retraining the link (Ley Foon Tan)
 
   Axis ARTPEC-6 host bridge driver
     Add PCI_MSI_IRQ_DOMAIN dependency (Arnd Bergmann)
     Add DT binding for Axis ARTPEC-6 PCIe controller (Niklas Cassel)
     Add Axis ARTPEC-6 PCIe controller driver (Niklas Cassel)
 
   Intel VMD host bridge driver
     Use lock save/restore in interrupt enable path (Jon Derrick)
     Select device dma ops to override (Keith Busch)
     Initialize list item in IRQ disable (Keith Busch)
     Use x86_vector_domain as parent domain (Keith Busch)
     Separate MSI and MSI-X vector sharing (Keith Busch)
 
   Marvell Aardvark host bridge driver
     Add DT binding for the Aardvark PCIe controller (Thomas Petazzoni)
     Add Aardvark PCI host controller driver (Thomas Petazzoni)
     Add Aardvark PCIe support for Armada 3700 (Thomas Petazzoni)
 
   Microsoft Hyper-V host bridge driver
     Fix interrupt cleanup path (Cathy Avery)
     Don't leak buffer in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
     Handle all pending messages in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
 
   NVIDIA Tegra host bridge driver
     Program PADS_REFCLK_CFG* always, not just on legacy SoCs (Stephen Warren)
     Program PADS_REFCLK_CFG* registers with per-SoC values (Stephen Warren)
     Use lower-case hex consistently for register definitions (Thierry Reding)
     Use generic pci_remap_iospace() rather than ARM32-specific one (Thierry Reding)
     Stop setting pcibios_min_mem (Thierry Reding)
 
   Renesas R-Car host bridge driver
     Drop gen2 dummy I/O port region (Bjorn Helgaas)
 
   TI DRA7xx host bridge driver
     Fix return value in case of error (Christophe JAILLET)
 
   Xilinx AXI host bridge driver
     Fix return value in case of error (Christophe JAILLET)
 
   Miscellaneous
     Make bus_attr_resource_alignment static (Ben Dooks)
     Include <asm/dma.h> for isa_dma_bridge_buggy (Ben Dooks)
     MAINTAINERS: Add file patterns for PCI device tree bindings (Geert Uytterhoeven)
     Make host bridge drivers explicitly non-modular (Paul Gortmaker)
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Merge tag 'pci-v4.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "Highlights:

   - ARM64 support for ACPI host bridges

   - new drivers for Axis ARTPEC-6 and Marvell Aardvark

   - new pci_alloc_irq_vectors() interface for MSI-X, MSI, legacy INTx

   - pci_resource_to_user() cleanup (more to come)

  Detailed summary:

  Enumeration:
   - Move ecam.h to linux/include/pci-ecam.h (Jayachandran C)
   - Add parent device field to ECAM struct pci_config_window (Jayachandran C)
   - Add generic MCFG table handling (Tomasz Nowicki)
   - Refactor pci_bus_assign_domain_nr() for CONFIG_PCI_DOMAINS_GENERIC (Tomasz Nowicki)
   - Factor DT-specific pci_bus_find_domain_nr() code out (Tomasz Nowicki)

  Resource management:
   - Add devm_request_pci_bus_resources() (Bjorn Helgaas)
   - Unify pci_resource_to_user() declarations (Bjorn Helgaas)
   - Implement pci_resource_to_user() with pcibios_resource_to_bus() (microblaze, powerpc, sparc) (Bjorn Helgaas)
   - Request host bridge window resources (designware, iproc, rcar, xgene, xilinx, xilinx-nwl) (Bjorn Helgaas)
   - Make PCI I/O space optional on ARM32 (Bjorn Helgaas)
   - Ignore write combining when mapping I/O port space (Bjorn Helgaas)
   - Claim bus resources on MIPS PCI_PROBE_ONLY set-ups (Bjorn Helgaas)
   - Remove unicore32 pci=firmware command line parameter handling (Bjorn Helgaas)
   - Support I/O resources when parsing host bridge resources (Jayachandran C)
   - Add helpers to request/release memory and I/O regions (Johannes Thumshirn)
   - Use pci_(request|release)_mem_regions (NVMe, lpfc, GenWQE, ethernet/intel, alx) (Johannes Thumshirn)
   - Extend pci=resource_alignment to specify device/vendor IDs (Koehrer Mathias (ETAS/ESW5))
   - Add generic pci_bus_claim_resources() (Lorenzo Pieralisi)
   - Claim bus resources on ARM32 PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
   - Remove ARM32 and ARM64 arch-specific pcibios_enable_device() (Lorenzo Pieralisi)
   - Add pci_unmap_iospace() to unmap I/O resources (Sinan Kaya)
   - Remove powerpc __pci_mmap_set_pgprot() (Yinghai Lu)

  PCI device hotplug:
   - Allow additional bus numbers for hotplug bridges (Keith Busch)
   - Ignore interrupts during D3cold (Lukas Wunner)

  Power management:
   - Enforce type casting for pci_power_t (Andy Shevchenko)
   - Don't clear d3cold_allowed for PCIe ports (Mika Westerberg)
   - Put PCIe ports into D3 during suspend (Mika Westerberg)
   - Power on bridges before scanning new devices (Mika Westerberg)
   - Runtime resume bridge before rescan (Mika Westerberg)
   - Add runtime PM support for PCIe ports (Mika Westerberg)
   - Remove redundant check of pcie_set_clkpm (Shawn Lin)

  Virtualization:
   - Add function 1 DMA alias quirk for Marvell 88SE9182 (Aaron Sierra)
   - Add DMA alias quirk for Adaptec 3805 (Alex Williamson)
   - Mark Atheros AR9485 and QCA9882 to avoid bus reset (Chris Blake)
   - Add ACS quirk for Solarflare SFC9220 (Edward Cree)

  MSI:
   - Fix PCI_MSI dependencies (Arnd Bergmann)
   - Add pci_msix_desc_addr() helper (Christoph Hellwig)
   - Switch msix_program_entries() to use pci_msix_desc_addr() (Christoph Hellwig)
   - Make the "entries" argument to pci_enable_msix() optional (Christoph Hellwig)
   - Provide sensible IRQ vector alloc/free routines (Christoph Hellwig)
   - Spread interrupt vectors in pci_alloc_irq_vectors() (Christoph Hellwig)

  Error Handling:
   - Bind DPC to Root Ports as well as Downstream Ports (Keith Busch)
   - Remove DPC tristate module option (Keith Busch)
   - Convert Downstream Port Containment driver to use devm_* functions (Mika Westerberg)

  Generic host bridge driver:
   - Select IRQ_DOMAIN (Arnd Bergmann)
   - Claim bus resources on PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)

  ACPI host bridge driver:
   - Add ARM64 acpi_pci_bus_find_domain_nr() (Tomasz Nowicki)
   - Add ARM64 ACPI support for legacy IRQs parsing and consolidation with DT code (Tomasz Nowicki)
   - Implement ARM64 AML accessors for PCI_Config region (Tomasz Nowicki)
   - Support ARM64 ACPI-based PCI host controller (Tomasz Nowicki)

  Altera host bridge driver:
   - Check link status before retrain link (Ley Foon Tan)
   - Poll for link up status after retraining the link (Ley Foon Tan)

  Axis ARTPEC-6 host bridge driver:
   - Add PCI_MSI_IRQ_DOMAIN dependency (Arnd Bergmann)
   - Add DT binding for Axis ARTPEC-6 PCIe controller (Niklas Cassel)
   - Add Axis ARTPEC-6 PCIe controller driver (Niklas Cassel)

  Intel VMD host bridge driver:
   - Use lock save/restore in interrupt enable path (Jon Derrick)
   - Select device dma ops to override (Keith Busch)
   - Initialize list item in IRQ disable (Keith Busch)
   - Use x86_vector_domain as parent domain (Keith Busch)
   - Separate MSI and MSI-X vector sharing (Keith Busch)

  Marvell Aardvark host bridge driver:
   - Add DT binding for the Aardvark PCIe controller (Thomas Petazzoni)
   - Add Aardvark PCI host controller driver (Thomas Petazzoni)
   - Add Aardvark PCIe support for Armada 3700 (Thomas Petazzoni)

  Microsoft Hyper-V host bridge driver:
   - Fix interrupt cleanup path (Cathy Avery)
   - Don't leak buffer in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
   - Handle all pending messages in hv_pci_onchannelcallback() (Vitaly Kuznetsov)

  NVIDIA Tegra host bridge driver:
   - Program PADS_REFCLK_CFG* always, not just on legacy SoCs (Stephen Warren)
   - Program PADS_REFCLK_CFG* registers with per-SoC values (Stephen Warren)
   - Use lower-case hex consistently for register definitions (Thierry Reding)
   - Use generic pci_remap_iospace() rather than ARM32-specific one (Thierry Reding)
   - Stop setting pcibios_min_mem (Thierry Reding)

  Renesas R-Car host bridge driver:
   - Drop gen2 dummy I/O port region (Bjorn Helgaas)

  TI DRA7xx host bridge driver:
   - Fix return value in case of error (Christophe JAILLET)

  Xilinx AXI host bridge driver:
   - Fix return value in case of error (Christophe JAILLET)

  Miscellaneous:
   - Make bus_attr_resource_alignment static (Ben Dooks)
   - Include <asm/dma.h> for isa_dma_bridge_buggy (Ben Dooks)
   - MAINTAINERS: Add file patterns for PCI device tree bindings (Geert Uytterhoeven)
   - Make host bridge drivers explicitly non-modular (Paul Gortmaker)"

* tag 'pci-v4.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (125 commits)
  PCI: xgene: Make explicitly non-modular
  PCI: thunder-pem: Make explicitly non-modular
  PCI: thunder-ecam: Make explicitly non-modular
  PCI: tegra: Make explicitly non-modular
  PCI: rcar-gen2: Make explicitly non-modular
  PCI: rcar: Make explicitly non-modular
  PCI: mvebu: Make explicitly non-modular
  PCI: layerscape: Make explicitly non-modular
  PCI: keystone: Make explicitly non-modular
  PCI: hisi: Make explicitly non-modular
  PCI: generic: Make explicitly non-modular
  PCI: designware-plat: Make it explicitly non-modular
  PCI: artpec6: Make explicitly non-modular
  PCI: armada8k: Make explicitly non-modular
  PCI: artpec: Add PCI_MSI_IRQ_DOMAIN dependency
  PCI: Add ACS quirk for Solarflare SFC9220
  arm64: dts: marvell: Add Aardvark PCIe support for Armada 3700
  PCI: aardvark: Add Aardvark PCI host controller driver
  dt-bindings: add DT binding for the Aardvark PCIe controller
  PCI: tegra: Program PADS_REFCLK_CFG* registers with per-SoC values
  ...
2016-08-02 17:12:29 -04:00
Linus Torvalds
f716a85cd6 Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kbuild updates from Michal Marek:

 - GCC plugin support by Emese Revfy from grsecurity, with a fixup from
   Kees Cook.  The plugins are meant to be used for static analysis of
   the kernel code.  Two plugins are provided already.

 - reduction of the gcc commandline by Arnd Bergmann.

 - IS_ENABLED / IS_REACHABLE macro enhancements by Masahiro Yamada

 - bin2c fix by Michael Tautschnig

 - setlocalversion fix by Wolfram Sang

* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  gcc-plugins: disable under COMPILE_TEST
  kbuild: Abort build on bad stack protector flag
  scripts: Fix size mismatch of kexec_purgatory_size
  kbuild: make samples depend on headers_install
  Kbuild: don't add obj tree in additional includes
  Kbuild: arch: look for generated headers in obtree
  Kbuild: always prefix objtree in LINUXINCLUDE
  Kbuild: avoid duplicate include path
  Kbuild: don't add ../../ to include path
  vmlinux.lds.h: replace config_enabled() with IS_ENABLED()
  kconfig.h: allow to use IS_{ENABLE,REACHABLE} in macro expansion
  kconfig.h: use already defined macros for IS_REACHABLE() define
  export.h: use __is_defined() to check if __KSYM_* is defined
  kconfig.h: use __is_defined() to check if MODULE is defined
  kbuild: setlocalversion: print error to STDERR
  Add sancov plugin
  Add Cyclomatic complexity GCC plugin
  GCC plugin infrastructure
  Shared library support
2016-08-02 16:37:12 -04:00
Linus Torvalds
221bb8a46e - ARM: GICv3 ITS emulation and various fixes. Removal of the old
VGIC implementation.
 
 - s390: support for trapping software breakpoints, nested virtualization
 (vSIE), the STHYI opcode, initial extensions for CPU model support.
 
 - MIPS: support for MIPS64 hosts (32-bit guests only) and lots of cleanups,
 preliminary to this and the upcoming support for hardware virtualization
 extensions.
 
 - x86: support for execute-only mappings in nested EPT; reduced vmexit
 latency for TSC deadline timer (by about 30%) on Intel hosts; support for
 more than 255 vCPUs.
 
 - PPC: bugfixes.
 
 The ugly bit is the conflicts.  A couple of them are simple conflicts due
 to 4.7 fixes, but most of them are with other trees. There was definitely
 too much reliance on Acked-by here.  Some conflicts are for KVM patches
 where _I_ gave my Acked-by, but the worst are for this pull request's
 patches that touch files outside arch/*/kvm.  KVM submaintainers should
 probably learn to synchronize better with arch maintainers, with the
 latter providing topic branches whenever possible instead of Acked-by.
 This is what we do with arch/x86.  And I should learn to refuse pull
 requests when linux-next sends scary signals, even if that means that
 submaintainers have to rebase their branches.
 
 Anyhow, here's the list:
 
 - arch/x86/kvm/vmx.c: handle_pcommit and EXIT_REASON_PCOMMIT was removed
 by the nvdimm tree.  This tree adds handle_preemption_timer and
 EXIT_REASON_PREEMPTION_TIMER at the same place.  In general all mentions
 of pcommit have to go.
 
 There is also a conflict between a stable fix and this patch, where the
 stable fix removed the vmx_create_pml_buffer function and its call.
 
 - virt/kvm/kvm_main.c: kvm_cpu_notifier was removed by the hotplug tree.
 This tree adds kvm_io_bus_get_dev at the same place.
 
 - virt/kvm/arm/vgic.c: a few final bugfixes went into 4.7 before the
 file was completely removed for 4.8.
 
 - include/linux/irqchip/arm-gic-v3.h: this one is entirely our fault;
 this is a change that should have gone in through the irqchip tree and
 pulled by kvm-arm.  I think I would have rejected this kvm-arm pull
 request.  The KVM version is the right one, except that it lacks
 GITS_BASER_PAGES_SHIFT.
 
 - arch/powerpc: what a mess.  For the idle_book3s.S conflict, the KVM
 tree is the right one; everything else is trivial.  In this case I am
 not quite sure what went wrong.  The commit that is causing the mess
 (fd7bacbca4, "KVM: PPC: Book3S HV: Fix TB corruption in guest exit
 path on HMI interrupt", 2016-05-15) touches both arch/powerpc/kernel/
 and arch/powerpc/kvm/.  It's large, but at 396 insertions/5 deletions
 I guessed that it wasn't really possible to split it and that the 5
 deletions wouldn't conflict.  That wasn't the case.
 
 - arch/s390: also messy.  First is hypfs_diag.c where the KVM tree
 moved some code and the s390 tree patched it.  You have to reapply the
 relevant part of commits 6c22c98637, plus all of e030c1125e, to
 arch/s390/kernel/diag.c.  Or pick the linux-next conflict
 resolution from http://marc.info/?l=kvm&m=146717549531603&w=2.
 Second, there is a conflict in gmap.c between a stable fix and 4.8.
 The KVM version here is the correct one.
 
 I have pushed my resolution at refs/heads/merge-20160802 (commit
 3d1f53419842) at git://git.kernel.org/pub/scm/virt/kvm/kvm.git.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Paolo Bonzini:

 - ARM: GICv3 ITS emulation and various fixes.  Removal of the
   old VGIC implementation.

 - s390: support for trapping software breakpoints, nested
   virtualization (vSIE), the STHYI opcode, initial extensions
   for CPU model support.

 - MIPS: support for MIPS64 hosts (32-bit guests only) and lots
   of cleanups, preliminary to this and the upcoming support for
   hardware virtualization extensions.

 - x86: support for execute-only mappings in nested EPT; reduced
   vmexit latency for TSC deadline timer (by about 30%) on Intel
   hosts; support for more than 255 vCPUs.

 - PPC: bugfixes.

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (302 commits)
  KVM: PPC: Introduce KVM_CAP_PPC_HTM
  MIPS: Select HAVE_KVM for MIPS64_R{2,6}
  MIPS: KVM: Reset CP0_PageMask during host TLB flush
  MIPS: KVM: Fix ptr->int cast via KVM_GUEST_KSEGX()
  MIPS: KVM: Sign extend MFC0/RDHWR results
  MIPS: KVM: Fix 64-bit big endian dynamic translation
  MIPS: KVM: Fail if ebase doesn't fit in CP0_EBase
  MIPS: KVM: Use 64-bit CP0_EBase when appropriate
  MIPS: KVM: Set CP0_Status.KX on MIPS64
  MIPS: KVM: Make entry code MIPS64 friendly
  MIPS: KVM: Use kmap instead of CKSEG0ADDR()
  MIPS: KVM: Use virt_to_phys() to get commpage PFN
  MIPS: Fix definition of KSEGX() for 64-bit
  KVM: VMX: Add VMCS to CPU's loaded VMCSs before VMPTRLD
  kvm: x86: nVMX: maintain internal copy of current VMCS
  KVM: PPC: Book3S HV: Save/restore TM state in H_CEDE
  KVM: PPC: Book3S HV: Pull out TM state save/restore into separate procedures
  KVM: arm64: vgic-its: Simplify MAPI error handling
  KVM: arm64: vgic-its: Make vgic_its_cmd_handle_mapi similar to other handlers
  KVM: arm64: vgic-its: Turn device_id validation into generic ID validation
  ...
2016-08-02 16:11:27 -04:00
Alim Akhtar
1fabaddd15 arm64: dts: Fix RTC by providing rtc_src clock
Add RTC source clock as Exynos7 needs source (32.768KHz) clock
for RTC block. Without this currently S3C RTC driver probe is broken
on this SoC.

Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-08-02 12:27:11 -07:00
Linus Torvalds
ed780686de ARM: 64-bit DT updates for v4.8
Just as the 32-bit contents, the 64-bit device tree branch also contains
 a number of additions this release cycle.
 
 New platforms:
  - LG LG1313
  - Mediatek MT6755
  - Renesas r8a7796
  - Broadcom 2837
 
  Other platforms with larger updates are:
  - Nvidia X1 platforms (USB 3.0, regulators, display subsystem)
  - Mediatek MT8173 (display subsystem added)
  - Rockchip RK3399 (a lot of new peripherals)
  - ARM Juno reference implementation (SCPI power domains, coresight, thermal)
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Merge tag 'armsoc-dt64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull 64-bit ARM DT updates from Olof Johansson:
 "Just as the 32-bit contents, the 64-bit device tree branch also
  contains a number of additions this release cycle.

  New platforms:
   - LG LG1313
   - Mediatek MT6755
   - Renesas r8a7796
   - Broadcom 2837

  Other platforms with larger updates are:
   - Nvidia X1 platforms (USB 3.0, regulators, display subsystem)
   - Mediatek MT8173 (display subsystem added)
   - Rockchip RK3399 (a lot of new peripherals)
   - ARM Juno reference implementation (SCPI power domains, coresight,
     thermal)"

* tag 'armsoc-dt64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (118 commits)
  arm64: tegra: Enable HDMI on Jetson TX1
  arm64: tegra: Add sor1_src clock
  arm64: tegra: Add XUSB powergates on Tegra210
  arm64: tegra: Add DPAUX pinctrl bindings
  arm64: tegra: Add ACONNECT bus node for Tegra210
  arm64: tegra: Add audio powergate node for Tegra210
  arm64: tegra: Add regulators for Tegra210 Smaug
  arm64: tegra: Correct Tegra210 XUSB mailbox interrupt
  arm64: tegra: Enable XUSB controller on Jetson TX1
  arm64: tegra: Enable debug serial on Jetson TX1
  arm64: tegra: Add Tegra210 XUSB controller
  arm64: tegra: Add Tegra210 XUSB pad controller
  arm64: tegra: Add DSI panel on Jetson TX1
  arm64: tegra: p2597: Add SDMMC power supplies
  arm64: tegra: Add PMIC support on Jetson TX1
  Revert "ARM64: DTS: meson-gxbb: switch ethernet to real clock"
  arm64: dts: hi6220: Add pl031 RTC support
  arm64: dts: r8a7796/salvator-x: Enable watchdog timer
  arm64: dts: r8a7796: Add RWDT node
  arm64: dts: r8a7796: Use SYSC "always-on" PM Domain
  ...
2016-08-01 18:47:01 -04:00
Linus Torvalds
43a0a98aa8 ARM: SoC driver updates for v4.8
Driver updates for ARM SoCs.
 
 A slew of changes this release cycle. The reset driver tree, that we merge
 through arm-soc for historical reasons, is also sizable this time around.
 
 Among the changes:
 
  - clps711x: Treewide changes to compatible strings, merged here for simplicity.
  - Qualcomm: SCM firmware driver cleanups, move to platform driver
  - ux500: Major cleanups, removal of old mach-specific infrastructure.
  - Atmel external bus memory driver
  - Move of brcmstb platform to the rest of bcm
  - PMC driver updates for tegra, various fixes and improvements
  - Samsung platform driver updates to support 64-bit Exynos platforms
  - Reset controller cleanups moving to devm_reset_controller_register() APIs
  - Reset controller driver for Amlogic Meson
  - Reset controller driver for Hisilicon hi6220
  - ARM SCPI power domain support
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Olof Johansson:
 "Driver updates for ARM SoCs.

  A slew of changes this release cycle.  The reset driver tree, that we
  merge through arm-soc for historical reasons, is also sizable this
  time around.

  Among the changes:

   - clps711x: Treewide changes to compatible strings, merged here for simplicity.
   - Qualcomm: SCM firmware driver cleanups, move to platform driver
   - ux500: Major cleanups, removal of old mach-specific infrastructure.
   - Atmel external bus memory driver
   - Move of brcmstb platform to the rest of bcm
   - PMC driver updates for tegra, various fixes and improvements
   - Samsung platform driver updates to support 64-bit Exynos platforms
   - Reset controller cleanups moving to devm_reset_controller_register() APIs
   - Reset controller driver for Amlogic Meson
   - Reset controller driver for Hisilicon hi6220
   - ARM SCPI power domain support"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (100 commits)
  ARM: ux500: consolidate base platform files
  ARM: ux500: move soc_id driver to drivers/soc
  ARM: ux500: call ux500_setup_id later
  ARM: ux500: consolidate soc_device code in id.c
  ARM: ux500: remove cpu_is_u* helpers
  ARM: ux500: use CLK_OF_DECLARE()
  ARM: ux500: move l2x0 init to .init_irq
  mfd: db8500 stop passing around platform data
  ASoC: ab8500-codec: remove platform data based probe
  ARM: ux500: move ab8500_regulator_plat_data into driver
  ARM: ux500: remove unused regulator data
  soc: raspberrypi-power: add CONFIG_OF dependency
  firmware: scpi: add CONFIG_OF dependency
  video: clps711x-fb: Changing the compatibility string to match with the smallest supported chip
  input: clps711x-keypad: Changing the compatibility string to match with the smallest supported chip
  pwm: clps711x: Changing the compatibility string to match with the smallest supported chip
  serial: clps711x: Changing the compatibility string to match with the smallest supported chip
  irqchip: clps711x: Changing the compatibility string to match with the smallest supported chip
  clocksource: clps711x: Changing the compatibility string to match with the smallest supported chip
  clk: clps711x: Changing the compatibility string to match with the smallest supported chip
  ...
2016-08-01 18:36:01 -04:00
Linus Torvalds
3fbff9c874 ARM: SoC 64-bit changes for v4.8
Changes to platform code for 64-bit ARM platforms.
 
 Nearlt all of these are defconfig updates to enable new drivers or old
 drivers still used on these 64-bit platforms.
 
 Added platforms for this release are:
 
  - Broadcom BCM2837
  - Renesas R8A7796
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Merge tag 'armsoc-arm64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull 64-bit ARM SoC updates from Olof Johansson:
 "Changes to platform code for 64-bit ARM platforms.

  Nearly all of these are defconfig updates to enable new drivers or old
  drivers still used on these 64-bit platforms.

  Added platforms for this release are:

   - Broadcom BCM2837
   - Renesas R8A7796"

* tag 'armsoc-arm64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (22 commits)
  arm64: remove duplicate PWM entry in defconfig
  arm64: Update default configuration
  arm64: defconfig: Enable more IP blocks for Exynos7 and Exynos5433
  arm64: amlogic: select gxbb clk driver
  arm64: defconfig: Enable S2MPS11 clock and S3C RTC driver
  arm64: marvell: enable Armada 3700 clock drivers
  arm64: defconfig: enable msm8996 pinctrl support
  arm64: defconfig: Enable qcom msm8996 clk drivers
  arm: defconfig: Enable PM8941 pwr key
  arm64: defconfig: enable stmmac and realtek PHY as modules
  arm64: Kconfig: select PM{,_GENERIC_DOMAINS} for ARCH_VEXPRESS
  arm64: defconfig: enable SENSORS_ARM_SCPI
  arm64: defconfig: enable Generic on-chip SRAM driver
  arm64: configs: enable PCIe driver for Armada 7K/8K
  arm64: Add platform selection for BCM2835.
  arm64: defconfig: disable plain NEON implementation of AES
  arm64: Allow for different DMA and CPU bus offsets
  arm64: defconfig: enable Renesas R8A7796 SoC
  arm64: defconfig: Enable Cadence MACB/GEM support
  ARM64: Kconfig: Select the Amlogic Meson pin controller driver
  ...
2016-08-01 18:29:28 -04:00
Bjorn Helgaas
9454c23852 Merge branch 'pci/msi-affinity' into next
Conflicts:
	drivers/nvme/host/pci.c
2016-08-01 12:34:01 -05:00
Bjorn Helgaas
a04bee8285 Merge branches 'pci/host-aardvark', 'pci/host-altera', 'pci/host-dra7xx', 'pci/host-hv', 'pci/host-vmd' and 'pci/host-xilinx' into next
* pci/host-aardvark:
  arm64: dts: marvell: Add Aardvark PCIe support for Armada 3700
  PCI: aardvark: Add Aardvark PCI host controller driver
  dt-bindings: add DT binding for the Aardvark PCIe controller

* pci/host-altera:
  PCI: altera: Poll for link up status after retraining the link
  PCI: altera: Check link status before retrain link
  PCI: altera: Reorder read/write functions

* pci/host-dra7xx:
  PCI: dra7xx: Fix return value in case of error

* pci/host-hv:
  PCI: hv: Fix interrupt cleanup path
  PCI: hv: Handle all pending messages in hv_pci_onchannelcallback()
  PCI: hv: Don't leak buffer in hv_pci_onchannelcallback()

* pci/host-vmd:
  x86/PCI: VMD: Separate MSI and MSI-X vector sharing
  x86/PCI: VMD: Use x86_vector_domain as parent domain
  x86/PCI: VMD: Use lock save/restore in interrupt enable path
  x86/PCI: VMD: Initialize list item in IRQ disable
  x86/PCI: VMD: Select device dma ops to override

* pci/host-xilinx:
  PCI: xilinx: Fix return value in case of error

Manually apply changes from pci/demodularize-hosts and
pci/host-request-windows to drivers/pci/host/pci-aardvark.c
2016-08-01 12:32:13 -05:00
Bjorn Helgaas
3efc702378 Merge branch 'pci/resource' into next
* pci/resource:
  unicore32/PCI: Remove pci=firmware command line parameter handling
  ARM/PCI: Remove arch-specific pcibios_enable_device()
  ARM64/PCI: Remove arch-specific pcibios_enable_device()
  MIPS/PCI: Claim bus resources on PCI_PROBE_ONLY set-ups
  ARM/PCI: Claim bus resources on PCI_PROBE_ONLY set-ups
  PCI: generic: Claim bus resources on PCI_PROBE_ONLY set-ups
  PCI: Add generic pci_bus_claim_resources()
  alx: Use pci_(request|release)_mem_regions
  ethernet/intel: Use pci_(request|release)_mem_regions
  GenWQE: Use pci_(request|release)_mem_regions
  lpfc: Use pci_(request|release)_mem_regions
  NVMe: Use pci_(request|release)_mem_regions
  PCI: Add helpers to request/release memory and I/O regions
  PCI: Extending pci=resource_alignment to specify device/vendor IDs
  sparc/PCI: Implement pci_resource_to_user() with pcibios_resource_to_bus()
  powerpc/pci: Implement pci_resource_to_user() with pcibios_resource_to_bus()
  microblaze/PCI: Implement pci_resource_to_user() with pcibios_resource_to_bus()
  PCI: Unify pci_resource_to_user() declarations
  microblaze/PCI: Remove useless __pci_mmap_set_pgprot()
  powerpc/pci: Remove __pci_mmap_set_pgprot()
  PCI: Ignore write combining when mapping I/O port space
2016-08-01 12:23:44 -05:00
Bjorn Helgaas
a00c74c166 Merge branches 'pci/aspm', 'pci/dpc', 'pci/hotplug', 'pci/misc', 'pci/msi', 'pci/pm' and 'pci/virtualization' into next
* pci/aspm:
  PCI/ASPM: Remove redundant check of pcie_set_clkpm

* pci/dpc:
  PCI: Remove DPC tristate module option
  PCI: Bind DPC to Root Ports as well as Downstream Ports
  PCI: Fix whitespace in struct dpc_dev
  PCI: Convert Downstream Port Containment driver to use devm_* functions

* pci/hotplug:
  PCI: Allow additional bus numbers for hotplug bridges

* pci/misc:
  PCI: Include <asm/dma.h> for isa_dma_bridge_buggy
  PCI: Make bus_attr_resource_alignment static
  MAINTAINERS: Add file patterns for PCI device tree bindings
  PCI: Fix comment typo

* pci/msi:
  PCI/MSI: irqchip: Fix PCI_MSI dependencies

* pci/pm:
  PCI: pciehp: Ignore interrupts during D3cold
  PCI: Document connection between pci_power_t and hardware PM capability
  PCI: Add runtime PM support for PCIe ports
  ACPI / hotplug / PCI: Runtime resume bridge before rescan
  PCI: Power on bridges before scanning new devices
  PCI: Put PCIe ports into D3 during suspend
  PCI: Don't clear d3cold_allowed for PCIe ports
  PCI / PM: Enforce type casting for pci_power_t

* pci/virtualization:
  PCI: Add ACS quirk for Solarflare SFC9220
  PCI: Add DMA alias quirk for Adaptec 3805
  PCI: Mark Atheros AR9485 and QCA9882 to avoid bus reset
  PCI: Add function 1 DMA alias quirk for Marvell 88SE9182
2016-08-01 12:23:31 -05:00
Andrew Jones
89581f06b2 arm64: KVM: Set cpsr before spsr on fault injection
We need to set cpsr before determining the spsr bank, as the bank
depends on the target exception level of the injection, not the
current mode of the vcpu. Normally this is one in the same (EL1),
but not when we manage to trap an EL0 fault. It still doesn't really
matter for the 64-bit EL0 case though, as vcpu_spsr() unconditionally
uses the EL1 bank for that. However the 32-bit EL0 case gets fun, as
that path will lead to the BUG() in vcpu_spsr32().

This patch fixes the assignment order and also modifies some white
space in order to better group pairs of lines that have strict order.

Cc: stable@vger.kernel.org # v4.5
Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-08-01 15:09:47 +01:00
Ard Biesheuvel
04a8481061 arm64: mm: avoid fdt_check_header() before the FDT is fully mapped
As reported by Zijun, the fdt_check_header() call in __fixmap_remap_fdt()
is not safe since it is not guaranteed that the FDT header is mapped
completely. Due to the minimum alignment of 8 bytes, the only fields we
can assume to be mapped are 'magic' and 'totalsize'.

Since the OF layer is in charge of validating the FDT image, and we are
only interested in making reasonably sure that the size field contains
a meaningful value, replace the fdt_check_header() call with an explicit
comparison of the magic field's value against the expected value.

Cc: <stable@vger.kernel.org>
Reported-by: Zijun Hu <zijun_hu@htc.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-08-01 14:17:01 +01:00
Linus Torvalds
f64d6e2aaa DeviceTree update for 4.8:
- Removal of most of_platform_populate() calls in arch code. Now the DT
 core code calls it in the default case and platforms only need to call
 it if they have special needs.
 
 - Use pr_fmt on all the DT core print statements.
 
 - CoreSight binding doc improvements to block name descriptions.
 
 - Add dt_to_config script which can parse dts files and list
 corresponding kernel config options.
 
 - Fix memory leak hit with a PowerMac DT.
 
 - Correct a bunch of STMicro compatible strings to use the correct
 vendor prefix.
 
 - Fix DA9052 PMIC binding doc to match what is actually used in dts
 files.
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Merge tag 'devicetree-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree updates from Rob Herring:

 - remove most of_platform_populate() calls in arch code.  Now the DT
   core code calls it in the default case and platforms only need to
   call it if they have special needs

 - use pr_fmt on all the DT core print statements

 - CoreSight binding doc improvements to block name descriptions

 - add dt_to_config script which can parse dts files and list
   corresponding kernel config options

 - fix memory leak hit with a PowerMac DT

 - correct a bunch of STMicro compatible strings to use the correct
   vendor prefix

 - fix DA9052 PMIC binding doc to match what is actually used in dts
   files

* tag 'devicetree-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (35 commits)
  documentation: da9052: Update regulator bindings names to match DA9052/53 DTS expectations
  xtensa: Partially Revert "xtensa: Remove unnecessary of_platform_populate with default match table"
  xtensa: Fix build error due to missing include file
  MIPS: ath79: Add missing include file
  Fix spelling errors in Documentation/devicetree
  ARM: dts: fix STMicroelectronics compatible strings
  powerpc/dts: fix STMicroelectronics compatible strings
  Documentation: dt: i2c: use correct STMicroelectronics vendor prefix
  scripts/dtc: dt_to_config - kernel config options for a devicetree
  of: fdt: mark unflattened tree as detached
  of: overlay: add resolver error prints
  coresight: document binding acronyms
  Documentation/devicetree: document cavium-pip rx-delay/tx-delay properties
  of: use pr_fmt prefix for all console printing
  of/irq: Mark initialised interrupt controllers as populated
  of: fix memory leak related to safe_name()
  Revert "of/platform: export of_default_bus_match_table"
  of: unittest: use of_platform_default_populate() to populate default bus
  memory: omap-gpmc: use of_platform_default_populate() to populate default bus
  bus: uniphier-system-bus: use of_platform_default_populate() to populate default bus
  ...
2016-07-30 11:32:01 -07:00
Linus Torvalds
7a1e8b80fb Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem updates from James Morris:
 "Highlights:

   - TPM core and driver updates/fixes
   - IPv6 security labeling (CALIPSO)
   - Lots of Apparmor fixes
   - Seccomp: remove 2-phase API, close hole where ptrace can change
     syscall #"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (156 commits)
  apparmor: fix SECURITY_APPARMOR_HASH_DEFAULT parameter handling
  tpm: Add TPM 2.0 support to the Nuvoton i2c driver (NPCT6xx family)
  tpm: Factor out common startup code
  tpm: use devm_add_action_or_reset
  tpm2_i2c_nuvoton: add irq validity check
  tpm: read burstcount from TPM_STS in one 32-bit transaction
  tpm: fix byte-order for the value read by tpm2_get_tpm_pt
  tpm_tis_core: convert max timeouts from msec to jiffies
  apparmor: fix arg_size computation for when setprocattr is null terminated
  apparmor: fix oops, validate buffer size in apparmor_setprocattr()
  apparmor: do not expose kernel stack
  apparmor: fix module parameters can be changed after policy is locked
  apparmor: fix oops in profile_unpack() when policy_db is not present
  apparmor: don't check for vmalloc_addr if kvzalloc() failed
  apparmor: add missing id bounds check on dfa verification
  apparmor: allow SYS_CAP_RESOURCE to be sufficient to prlimit another task
  apparmor: use list_next_entry instead of list_entry_next
  apparmor: fix refcount race when finding a child profile
  apparmor: fix ref count leak when profile sha1 hash is read
  apparmor: check that xindex is in trans_table bounds
  ...
2016-07-29 17:38:46 -07:00
Linus Torvalds
a6408f6cb6 Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull smp hotplug updates from Thomas Gleixner:
 "This is the next part of the hotplug rework.

   - Convert all notifiers with a priority assigned

   - Convert all CPU_STARTING/DYING notifiers

     The final removal of the STARTING/DYING infrastructure will happen
     when the merge window closes.

  Another 700 hundred line of unpenetrable maze gone :)"

* 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (70 commits)
  timers/core: Correct callback order during CPU hot plug
  leds/trigger/cpu: Move from CPU_STARTING to ONLINE level
  powerpc/numa: Convert to hotplug state machine
  arm/perf: Fix hotplug state machine conversion
  irqchip/armada: Avoid unused function warnings
  ARC/time: Convert to hotplug state machine
  clocksource/atlas7: Convert to hotplug state machine
  clocksource/armada-370-xp: Convert to hotplug state machine
  clocksource/exynos_mct: Convert to hotplug state machine
  clocksource/arm_global_timer: Convert to hotplug state machine
  rcu: Convert rcutree to hotplug state machine
  KVM/arm/arm64/vgic-new: Convert to hotplug state machine
  smp/cfd: Convert core to hotplug state machine
  x86/x2apic: Convert to CPU hotplug state machine
  profile: Convert to hotplug state machine
  timers/core: Convert to hotplug state machine
  hrtimer: Convert to hotplug state machine
  x86/tboot: Convert to hotplug state machine
  arm64/armv8 deprecated: Convert to hotplug state machine
  hwtracing/coresight-etm4x: Convert to hotplug state machine
  ...
2016-07-29 13:55:30 -07:00
James Hogan
3146bc64d1 arm64: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO
AT_VECTOR_SIZE_ARCH should be defined with the maximum number of
NEW_AUX_ENT entries that ARCH_DLINFO can contain, but it wasn't defined
for arm64 at all even though ARCH_DLINFO will contain one NEW_AUX_ENT
for the VDSO address.

This shouldn't be a problem as AT_VECTOR_SIZE_BASE includes space for
AT_BASE_PLATFORM which arm64 doesn't use, but lets define it now and add
the comment above ARCH_DLINFO as found in several other architectures to
remind future modifiers of ARCH_DLINFO to keep AT_VECTOR_SIZE_ARCH up to
date.

Fixes: f668cd1673 ("arm64: ELF definitions")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-07-29 10:45:58 +01:00
Ard Biesheuvel
08cc55b2af arm64: relocatable: suppress R_AARCH64_ABS64 relocations in vmlinux
The linker routines that we rely on to produce a relocatable PIE binary
treat it as a shared ELF object in some ways, i.e., it emits symbol based
R_AARCH64_ABS64 relocations into the final binary since doing so would be
appropriate when linking a shared library that is subject to symbol
preemption. (This means that an executable can override certain symbols
that are exported by a shared library it is linked with, and that the
shared library *must* update all its internal references as well, and point
them to the version provided by the executable.)

Symbol preemption does not occur for OS hosted PIE executables, let alone
for vmlinux, and so we would prefer to get rid of these symbol based
relocations. This would allow us to simplify the relocation routines, and
to strip the .dynsym, .dynstr and .hash sections from the binary. (Note
that these are tiny, and are placed in the .init segment, but they clutter
up the vmlinux binary.)

Note that these R_AARCH64_ABS64 relocations are only emitted for absolute
references to symbols defined in the linker script, all other relocatable
quantities are covered by anonymous R_AARCH64_RELATIVE relocations that
simply list the offsets to all 64-bit values in the binary that need to be
fixed up based on the offset between the link time and run time addresses.

Fortunately, GNU ld has a -Bsymbolic option, which is intended for shared
libraries to allow them to ignore symbol preemption, and unconditionally
bind all internal symbol references to its own definitions. So set it for
our PIE binary as well, and get rid of the asoociated sections and the
relocation code that processes them.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
[will: fixed conflict with __dynsym_offset linker script entry]
Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-07-29 10:45:01 +01:00
Ard Biesheuvel
d6732fc402 arm64: vmlinux.lds: make __rela_offset and __dynsym_offset ABSOLUTE
Due to the untyped KIMAGE_VADDR constant, the linker may not notice
that the __rela_offset and __dynsym_offset expressions are absolute
values (i.e., are not subject to relocation). This does not matter for
KASLR, but it does confuse kallsyms in relative mode, since it uses
the lowest non-absolute symbol address as the anchor point, and expects
all other symbol addresses to be within 4 GB of it.

Fix this by qualifying these expressions as ABSOLUTE() explicitly.

Fixes: 0cd3defe0a ("arm64: kernel: perform relocation processing from ID map")
Cc: <stable@vger.kernel.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-07-29 10:44:53 +01:00
Dennis Chen
cb0a650213 arm64:acpi: fix the acpi alignment exception when 'mem=' specified
When booting an ACPI enabled kernel with 'mem=x', there is the
possibility that ACPI data regions from the firmware will lie above the
memory limit.  Ordinarily these will be removed by
memblock_enforce_memory_limit(.).

Unfortunately, this means that these regions will then be mapped by
acpi_os_ioremap(.) as device memory (instead of normal) thus unaligned
accessess will then provoke alignment faults.

In this patch we adopt memblock_mem_limit_remove_map instead, and this
preserves these ACPI data regions (marked NOMAP) thus ensuring that
these regions are not mapped as device memory.

For example, below is an alignment exception observed on ARM platform
when booting the kernel with 'acpi=on mem=8G':

  ...
  Unable to handle kernel paging request at virtual address ffff0000080521e7
  pgd = ffff000008aa0000
  [ffff0000080521e7] *pgd=000000801fffe003, *pud=000000801fffd003, *pmd=000000801fffc003, *pte=00e80083ff1c1707
  Internal error: Oops: 96000021 [#1] PREEMPT SMP
  Modules linked in:
  CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.7.0-rc3-next-20160616+ #172
  Hardware name: AMD Overdrive/Supercharger/Default string, BIOS ROD1001A 02/09/2016
  task: ffff800001ef0000 ti: ffff800001ef8000 task.ti: ffff800001ef8000
  PC is at acpi_ns_lookup+0x520/0x734
  LR is at acpi_ns_lookup+0x4a4/0x734
  pc : [<ffff0000083b8b10>] lr : [<ffff0000083b8a94>] pstate: 60000045
  sp : ffff800001efb8b0
  x29: ffff800001efb8c0 x28: 000000000000001b
  x27: 0000000000000001 x26: 0000000000000000
  x25: ffff800001efb9e8 x24: ffff000008a10000
  x23: 0000000000000001 x22: 0000000000000001
  x21: ffff000008724000 x20: 000000000000001b
  x19: ffff0000080521e7 x18: 000000000000000d
  x17: 00000000000038ff x16: 0000000000000002
  x15: 0000000000000007 x14: 0000000000007fff
  x13: ffffff0000000000 x12: 0000000000000018
  x11: 000000001fffd200 x10: 00000000ffffff76
  x9 : 000000000000005f x8 : ffff000008725fa8
  x7 : ffff000008a8df70 x6 : ffff000008a8df70
  x5 : ffff000008a8d000 x4 : 0000000000000010
  x3 : 0000000000000010 x2 : 000000000000000c
  x1 : 0000000000000006 x0 : 0000000000000000
  ...
    acpi_ns_lookup+0x520/0x734
    acpi_ds_load1_begin_op+0x174/0x4fc
    acpi_ps_build_named_op+0xf8/0x220
    acpi_ps_create_op+0x208/0x33c
    acpi_ps_parse_loop+0x204/0x838
    acpi_ps_parse_aml+0x1bc/0x42c
    acpi_ns_one_complete_parse+0x1e8/0x22c
    acpi_ns_parse_table+0x8c/0x128
    acpi_ns_load_table+0xc0/0x1e8
    acpi_tb_load_namespace+0xf8/0x2e8
    acpi_load_tables+0x7c/0x110
    acpi_init+0x90/0x2c0
    do_one_initcall+0x38/0x12c
    kernel_init_freeable+0x148/0x1ec
    kernel_init+0x10/0xec
    ret_from_fork+0x10/0x40
  Code: b9009fbc 2a00037b 36380057 3219037b (b9400260)
  ---[ end trace 03381e5eb0a24de4 ]---
  Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b

With 'efi=debug', we can see those ACPI regions loaded by firmware on
that board as:

  efi:   0x0083ff185000-0x0083ff1b4fff [Reserved           |   |  |  |  |  |  |  |   |WB|WT|WC|UC]*
  efi:   0x0083ff1b5000-0x0083ff1c2fff [ACPI Reclaim Memory|   |  |  |  |  |  |  |   |WB|WT|WC|UC]*
  efi:   0x0083ff223000-0x0083ff224fff [ACPI Memory NVS    |   |  |  |  |  |  |  |   |WB|WT|WC|UC]*

Link: http://lkml.kernel.org/r/1468475036-5852-3-git-send-email-dennis.chen@arm.com
Acked-by: Steve Capper <steve.capper@arm.com>
Signed-off-by: Dennis Chen <dennis.chen@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Kaly Xin <kaly.xin@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-07-28 16:07:41 -07:00
Linus Torvalds
468fc7ed55 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:

 1) Unified UDP encapsulation offload methods for drivers, from
    Alexander Duyck.

 2) Make DSA binding more sane, from Andrew Lunn.

 3) Support QCA9888 chips in ath10k, from Anilkumar Kolli.

 4) Several workqueue usage cleanups, from Bhaktipriya Shridhar.

 5) Add XDP (eXpress Data Path), essentially running BPF programs on RX
    packets as soon as the device sees them, with the option to mirror
    the packet on TX via the same interface.  From Brenden Blanco and
    others.

 6) Allow qdisc/class stats dumps to run lockless, from Eric Dumazet.

 7) Add VLAN support to b53 and bcm_sf2, from Florian Fainelli.

 8) Simplify netlink conntrack entry layout, from Florian Westphal.

 9) Add ipv4 forwarding support to mlxsw spectrum driver, from Ido
    Schimmel, Yotam Gigi, and Jiri Pirko.

10) Add SKB array infrastructure and convert tun and macvtap over to it.
    From Michael S Tsirkin and Jason Wang.

11) Support qdisc packet injection in pktgen, from John Fastabend.

12) Add neighbour monitoring framework to TIPC, from Jon Paul Maloy.

13) Add NV congestion control support to TCP, from Lawrence Brakmo.

14) Add GSO support to SCTP, from Marcelo Ricardo Leitner.

15) Allow GRO and RPS to function on macsec devices, from Paolo Abeni.

16) Support MPLS over IPV4, from Simon Horman.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1622 commits)
  xgene: Fix build warning with ACPI disabled.
  be2net: perform temperature query in adapter regardless of its interface state
  l2tp: Correctly return -EBADF from pppol2tp_getname.
  net/mlx5_core/health: Remove deprecated create_singlethread_workqueue
  net: ipmr/ip6mr: update lastuse on entry change
  macsec: ensure rx_sa is set when validation is disabled
  tipc: dump monitor attributes
  tipc: add a function to get the bearer name
  tipc: get monitor threshold for the cluster
  tipc: make cluster size threshold for monitoring configurable
  tipc: introduce constants for tipc address validation
  net: neigh: disallow transition to NUD_STALE if lladdr is unchanged in neigh_update()
  MAINTAINERS: xgene: Add driver and documentation path
  Documentation: dtb: xgene: Add MDIO node
  dtb: xgene: Add MDIO node
  drivers: net: xgene: ethtool: Use phy_ethtool_gset and sset
  drivers: net: xgene: Use exported functions
  drivers: net: xgene: Enable MDIO driver
  drivers: net: xgene: Add backward compatibility
  drivers: net: phy: xgene: Add MDIO driver
  ...
2016-07-27 12:03:20 -07:00