arm64: dts: qcom: msm8916-samsung-a3u: add nodes for display panel

This patch wires up display support on Samsung Galaxy A3 2015.

Signed-off-by: Michael Srba <michael.srba@seznam.cz>
Link: https://lore.kernel.org/r/20200514170129.10902-1-michael.srba@seznam.cz
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: db820c: Fix invalid pm8994 supplies

It's uncertain where the "vreg_s8a_l3a_input" comes from, but the supply
for VDD_L3_L11 on PM8994 should be VREG_S3A_1P3, so correct this - and
drop the vreg_s8a_l3a_input.

Reviewed-by: Vinod Koul <vkoul@kernel.org>
Fixes: 83d9ed4342a3 ("arm64: dts: qcom: db820c: Use regulator names from schematics")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200417070712.1376355-1-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: db820c: Add pmi8994 RPM regulators

The PMI8994 provides 3 SPMS regulators and one boost/bypass regulator.
Define s1 and the boot/bypass and update pm8994 to appropriately
describe the supply from PMI8994.

Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200417070303.1376290-1-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: msm8916: Disable coresight by default

On some msm8916 devices, attempts at initializing coresight cause the boot to
fail. This was fixed by disabling the coresight-related nodes in the board dts
files. However, a cleaner approach was chosen for fixing the same issue on
msm8998: disabling coresight by default, and enabling it in board dts files
where desired.

This patch implements the same solution for msm8916, removes now redundant
overwrites in board specific dts files and and enables coresight in db410c's
board dts in order to keep the current behavior.

Fixes: b1fcc5702a41 ("arm64: dts: qcom: msm8916: Add CTI options")
Signed-off-by: Michael Srba <michael.srba@seznam.cz>
Reviewed-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Link: https://lore.kernel.org/r/20200513184735.30104-1-michael.srba@seznam.cz
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sc7180: Add "no-map" to cmd_db reserved area

The example in the bindings and all the current users (except sc7180)
have "no-map".  I'm pretty sure we need it on sc7180 too.  Add it.

Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Fixes: e0abc5eb526e ("arm64: dts: qcom: sc7180: Add cmd_db reserved area")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20200424085121.1.I9d1e84d30f488cdb5a957f582abaecd2c0b24d70@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: msm8916-samsung-a5u: Add touchscreen

A5U uses a Melfas MMS345L touchscreen that is connected to
blsp_i2c5. Add it to the device tree.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20200426140642.204395-5-stephan@gerhold.net
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: msm8916-samsung-a2015: Add touchscreen regulator

A3U and A5U both use an extra touchscreen LDO regulator
that provides 3.3V for the touch screen controller.

Add it as fixed regulator to the common include.

Cc: Michael Srba <Michael.Srba@seznam.cz>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20200426140642.204395-4-stephan@gerhold.net
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: msm8916: Add blsp_i2c5

MSM8916 has another I2C QUP controller that can be enabled on
GPIO 18 and 19.

Add blsp_i2c5 to msm8916.dtsi and disable it by default.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20200426140642.204395-3-stephan@gerhold.net
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: msm8916: Add blsp_i2c1

MSM8916 has another I2C QUP controller that can be enabled on
GPIO 2 and 3.

Add blsp_i2c1 to msm8916.dtsi and disable it by default.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20200426140642.204395-2-stephan@gerhold.net
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sc7180: Support ETMv4 power management

Now that deep idle states are properly supported on SC7180,
we need to add "coresight-loses-context-with-cpu" property
to avoid failure of trace session because of losing context
on entering deep idle states.

Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Link: https://lore.kernel.org/r/20200424111644.27970-1-saiprakash.ranjan@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: sdm845: Add "no-hpd" to sn65dsi86 on cheza

We don't have the HPD line hooked up to the bridge chip.  Add it as
suggested in the patch ("dt-bindings: drm/bridge: ti-sn65dsi86:
Document no-hpd").

NOTE: this patch isn't expected to have any effect but just keeps us
cleaner for the future.  Currently the driver in Linux just assumes
that nobody has HPD hooked up.  This change allows us to later
implement HPD support in the driver without messing up sdm845-cheza.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20200507143354.v5.6.I89df9b6094549b8149aa8b8347f7401c678055b0@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch: arm64: dts: msm8996: Add CCI node

Add CCI controller node, which can be used to communicate with
camera sensors (I2C subset). MSM8996 CCI offers two masters,
i2c-bus@0 and i2c-bus@1.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Link: https://lore.kernel.org/r/1587470425-13726-2-git-send-email-loic.poulain@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: msm8996: Fix CSI IRQ types

Each IRQ_TYPE_NONE interrupt causes a warning at boot.
Fix that by defining an appropriate type.

Fixes: e0531312e78f ("arm64: dts: qcom: msm8996: Add CAMSS support")
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Link: https://lore.kernel.org/r/1587470425-13726-1-git-send-email-loic.poulain@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sc7180: Update Q6V5 MSS node

Add TCSR node and update MSS node to support MSA based Modem boot on
SC7180 SoCs.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200421143228.8981-8-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sc7180: Add Q6V5 MSS node

This patch adds Q6V5 MSS PAS remoteproc node for SC7180 SoCs.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200421143228.8981-7-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sc7180: Update reserved memory map

Add missing regions and remove unused regions from the reserved memory
map, as described in version 5.

Tested-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200421143228.8981-6-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sdm845: Add SoC compatible to MTP

Add missing SoC compatible to SDM845 MTP board file.

Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200504202243.5476-2-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: sdm845: add IPA iommus property

Add an "iommus" property to the IPA node in "sdm845.dtsi".  It is
required because there are two regions of memory the IPA accesses
through an SMMU.  The next few patches define and map those regions.

Signed-off-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20200504181350.22822-1-elder@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: msm8916: Add CTI options

Adds system and CPU bound CTI definitions for Qualcom msm8916 platform
(Dragonboard DB410C).
System CTIs 2-11 are omitted as no information available at present.

Signed-off-by: Mike Leach <mike.leach@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20200415201230.15766-1-mike.leach@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: Add Xiaomi Redmi Note 7 (lavender)

This adds the initial device tree support for Xiaomi
Redmi Note 7 (codename lavender) phone. It is based on
SDM660 SoC. Currently it can be booted into initrd with
a shell over UART and you can also get kernel boot logs
from a pstore-ramoops.

Signed-off-by: Alexey Minnekhanov <alexey.min@gmail.com>
Link: https://lore.kernel.org/r/20200417012630.222352-4-alexey.min@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: Add SDM660 SoC support

Initial device tree support for Qualcomm SDM660 SoC.

SDM660 is based off MSM8998 and uses some of its drivers.
SDM630/636 are based off SDM660 SoC and they are pin
and software compatible.

The device tree is based on the CAF 4.4 kernel tree.

Features:
 * CPU nodes
 * Timer nodes
 * Interrupt controller
 * Global Clock Controller
 * Top Level Mode Multiplexer (pin controller)
 * UART node

This is inspired by and based on the work of Craig Tatlor in
https://patchwork.kernel.org/patch/10563667/

Signed-off-by: Craig Tatlor <ctatlor97@gmail.com>
Signed-off-by: Alexey Minnekhanov <alexey.min@gmail.com>
Link: https://lore.kernel.org/r/20200417012630.222352-3-alexey.min@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

dt-bindings: arm: qcom: Add sdm630 and sdm660 SoCs

Add a SoC strings for the Qualcomm SDM630 and SDM660 SoCs.
Also document the new xiaomi,lavender compatible used in
a device tree binding.

Signed-off-by: Alexey Minnekhanov <alexey.min@gmail.com>
Link: https://lore.kernel.org/r/20200417012630.222352-2-alexey.min@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sm8250: Fix PDC compatible and reg

The pdc node suffers from both too narrow compatible and insufficient
cells in the reg, fix these.

Fixes: 60378f1a171e ("arm64: dts: qcom: sm8250: Add sm8250 dts file")
Tested-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20200415054703.739507-1-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sm8250: Add UFS controller and PHY

Add nodes for the UFS controller and PHY, and enable these for the MTP
with relevant supplies specified.

Tested-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20200415061430.740854-3-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sm8250-mtp: Add pm8150, pm8150l and pm8009

Add RPMh controlled regulators for the three PMICs and specify voltage
ranges and mode for relevant regulators.

Tested-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20200415061430.740854-2-bjorn.andersson@linaro.org
[bjorn: Fixed up some supplies and voltages]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sm8250: Add rpmhpd node

Tested-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20200415062154.741179-3-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sc7180: Add Coresight support

Add coresight components found on Qualcomm SC7180 SoC.

Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Tested-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/73e4352c19afff4c9ea2041b263a85e68e6eef11.1586263250.git.saiprakash.ranjan@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: fix pm8150 gpio interrupts

This was mistakenly copied from the downstream dts, however the upstream
driver works differently.

I only tested this with the pm8150_gpios node (used with volume button),
but the 2 others should be the same.

Fixes: e92b61c8e775 ("arm64: dts: qcom: pm8150l: Add base dts file")
Fixes: 229d5bcad0d0 ("arm64: dts: qcom: pm8150b: Add base dts file")
Fixes: 5101f22a5c37 ("arm64: dts: qcom: pm8150: Add base dts file")
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Link: https://lore.kernel.org/r/20200420153543.14512-1-jonathan@marek.ca
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sc7180: Update QUSB2 V2 Phy params for SC7180 IDP device

Overriding the QUSB2 V2 Phy tuning parameters for SC7180 IDP device.

Signed-off-by: Sandeep Maheswaram <sanm@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1583747589-17267-10-git-send-email-sanm@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sc7180: Add generic QUSB2 V2 Phy compatible

Use generic QUSB2 V2 Phy configuration for SC7180.

Signed-off-by: Sandeep Maheswaram <sanm@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1583747589-17267-8-git-send-email-sanm@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sdm845: Add generic QUSB2 V2 Phy compatible

Use generic QUSB2 V2 Phy configuration for sdm845.

Signed-off-by: Sandeep Maheswaram <sanm@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1583747589-17267-9-git-send-email-sanm@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sc7180: Add cpuidle low power states

Add device bindings for cpuidle states for cpu devices.

Cc: devicetree@vger.kernel.orgi
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
Reviewed-by: Srinivas Rao L <lsrao@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1586703004-13674-2-git-send-email-mkshah@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: ipq8074: qcom: Re-arrange dts nodes based on address

This patch re-arranges ipq8074 device nodes based on node address
followed by node names followed by node labels.

Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sivaprakash Murugesan <sivaprak@codeaurora.org>
Link: https://lore.kernel.org/r/1586572830-22727-1-git-send-email-sivaprak@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sc7180: Add interconnect paths for the video codec

Add the interconnect path configuration for the venus video codec of
the SC7180.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Link: https://lore.kernel.org/r/20200409160206.1.Icf877f5cd50ef5e56d14ee014ca196d76242cb89@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sc7180: Changed polling mode in Thermal-zones node

Changed polling-delay and polling-delay-passive to zero to disable
polling mode of the framework as interrupts for tsens are already
configured.

Signed-off-by: Rajeshwari <rkambl@codeaurora.org>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/1586244677-14399-1-git-send-email-rkambl@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sc7180: Swap order of gpucc and sdhc_2

Devices are supposed to be sorted by unit address.  These two got
swapped when they landed.  Fix.

Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20200331092832.1.Ic361058ca22d7439164ffea11421740462e14272@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: msm8998: remove unit name for thermal trip points

The thermal trip points have unit name but no reg property, so we can
remove them. It also fixes the following warnings from 'make dtbs_check'
after adding the thermal yaml bindings.

arch/arm64/boot/dts/qcom/msm8998-hp-envy-x2.dt.yaml: thermal-zones:
cpu0-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-hp-envy-x2.dt.yaml: thermal-zones:
cpu1-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-hp-envy-x2.dt.yaml: thermal-zones:
cpu2-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-hp-envy-x2.dt.yaml: thermal-zones:
cpu3-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-hp-envy-x2.dt.yaml: thermal-zones:
cpu4-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-hp-envy-x2.dt.yaml: thermal-zones:
cpu5-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-hp-envy-x2.dt.yaml: thermal-zones:
cpu6-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-hp-envy-x2.dt.yaml: thermal-zones:
cpu7-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-hp-envy-x2.dt.yaml: thermal-zones:
clust0-mhm-thermal:trips: 'trip-point@0' does not match any of the
regexes: '^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-hp-envy-x2.dt.yaml: thermal-zones:
clust1-mhm-thermal:trips: 'trip-point@0' does not match any of the
regexes: '^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-hp-envy-x2.dt.yaml: thermal-zones:
cluster1-l2-thermal:trips: 'trip-point@0' does not match any of the
regexes: '^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-hp-envy-x2.dt.yaml: thermal-zones:
modem-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-hp-envy-x2.dt.yaml: thermal-zones:
mem-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-hp-envy-x2.dt.yaml: thermal-zones:
wlan-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-hp-envy-x2.dt.yaml: thermal-zones:
q6-dsp-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-hp-envy-x2.dt.yaml: thermal-zones:
camera-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-hp-envy-x2.dt.yaml: thermal-zones:
multimedia-thermal:trips: 'trip-point@0' does not match any of the
regexes: '^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'

arch/arm64/boot/dts/qcom/msm8998-mtp.dt.yaml: thermal-zones:
cpu0-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-mtp.dt.yaml: thermal-zones:
cpu1-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-mtp.dt.yaml: thermal-zones:
cpu2-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-mtp.dt.yaml: thermal-zones:
cpu3-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-mtp.dt.yaml: thermal-zones:
cpu4-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-mtp.dt.yaml: thermal-zones:
cpu5-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-mtp.dt.yaml: thermal-zones:
cpu6-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-mtp.dt.yaml: thermal-zones:
cpu7-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-mtp.dt.yaml: thermal-zones:
clust0-mhm-thermal:trips: 'trip-point@0' does not match any of the
regexes: '^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-mtp.dt.yaml: thermal-zones:
clust1-mhm-thermal:trips: 'trip-point@0' does not match any of the
regexes: '^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-mtp.dt.yaml: thermal-zones:
cluster1-l2-thermal:trips: 'trip-point@0' does not match any of the
regexes: '^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-mtp.dt.yaml: thermal-zones:
modem-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-mtp.dt.yaml: thermal-zones:
mem-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-mtp.dt.yaml: thermal-zones:
wlan-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-mtp.dt.yaml: thermal-zones:
q6-dsp-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-mtp.dt.yaml: thermal-zones:
camera-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8998-mtp.dt.yaml: thermal-zones:
multimedia-thermal:trips: 'trip-point@0' does not match any of the
regexes: '^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Link: https://lore.kernel.org/r/cd6f0c7298437d35642b35c9ede9064c247d6090.1585562459.git.amit.kucheria@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: msm8996: remove unit name for thermal trip points

The thermal trip points have unit name but no reg property, so we can
remove them. It also fixes the following warnings from 'make dtbs_check'
after adding the thermal yaml bindings.

arch/arm64/boot/dts/qcom/apq8096-ifc6640.dt.yaml: thermal-zones:
cpu0-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-ifc6640.dt.yaml: thermal-zones:
cpu1-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-ifc6640.dt.yaml: thermal-zones:
cpu2-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-ifc6640.dt.yaml: thermal-zones:
cpu3-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-ifc6640.dt.yaml: thermal-zones:
m4m-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-ifc6640.dt.yaml: thermal-zones:
l3-or-venus-thermal:trips: 'trip-point@0' does not match any of the
regexes: '^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-ifc6640.dt.yaml: thermal-zones:
cluster0-l2-thermal:trips: 'trip-point@0' does not match any of the
regexes: '^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-ifc6640.dt.yaml: thermal-zones:
cluster1-l2-thermal:trips: 'trip-point@0' does not match any of the
regexes: '^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-ifc6640.dt.yaml: thermal-zones:
camera-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-ifc6640.dt.yaml: thermal-zones:
q6-dsp-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-ifc6640.dt.yaml: thermal-zones:
mem-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-ifc6640.dt.yaml: thermal-zones:
modemtx-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'

arch/arm64/boot/dts/qcom/apq8096-db820c.dt.yaml: thermal-zones:
cpu0-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-db820c.dt.yaml: thermal-zones:
cpu1-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-db820c.dt.yaml: thermal-zones:
cpu2-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-db820c.dt.yaml: thermal-zones:
cpu3-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-db820c.dt.yaml: thermal-zones:
m4m-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-db820c.dt.yaml: thermal-zones:
l3-or-venus-thermal:trips: 'trip-point@0' does not match any of the
regexes: '^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-db820c.dt.yaml: thermal-zones:
cluster0-l2-thermal:trips: 'trip-point@0' does not match any of the
regexes: '^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-db820c.dt.yaml: thermal-zones:
cluster1-l2-thermal:trips: 'trip-point@0' does not match any of the
regexes: '^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-db820c.dt.yaml: thermal-zones:
camera-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-db820c.dt.yaml: thermal-zones:
q6-dsp-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-db820c.dt.yaml: thermal-zones:
mem-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8096-db820c.dt.yaml: thermal-zones:
modemtx-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Link: https://lore.kernel.org/r/2c0aa5357c96c3caff8554f9ef3ab9c5a2b8d2f8.1585562459.git.amit.kucheria@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: msm8916: remove unit name for thermal trip points

The thermal trip points have unit name but no reg property, so we can
remove them. It also fixes the following warnings from 'make dtbs_check'
after adding the thermal yaml bindings.

arch/arm64/boot/dts/qcom/apq8016-sbc.dt.yaml: thermal-zones:
gpu-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8016-sbc.dt.yaml: thermal-zones:
camera-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8016-sbc.dt.yaml: thermal-zones:
modem-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'

arch/arm64/boot/dts/qcom/msm8916-mtp.dt.yaml: thermal-zones:
gpu-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8916-mtp.dt.yaml: thermal-zones:
camera-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8916-mtp.dt.yaml: thermal-zones:
modem-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Link: https://lore.kernel.org/r/2d3d045c18a2fb85b28cf304aa11ae6e6538d75e.1585562459.git.amit.kucheria@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sc7180: modify assigned clocks for sc7180 target

Add DISP_CC_MDSS_ROT_CLK and DISP_CC_MDSS_AHB_CLK
in the assigned clocks list as these are display
specific clocks and needs to be initialized from
the client side. Adding the default rate of
19.2 mhz for these clocks for sc7180 target.

Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>
Link: https://lore.kernel.org/r/1584709864-5587-1-git-send-email-mkrishn@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sc7180: Include interconnect definitions

Re-introduce the include of the sc7180 interconnect node name
definitions. Though this was part of v5 of the interconnect provider
series [1], it was dropped because the DT changes went through a
different tree than the header. Re-add that now.

Interconnect clients being introduced can reference this patch as a
dependency, rather than racing each other to add the include.

[1] https://patchwork.kernel.org/patch/11417989/

Signed-off-by: Evan Green <evgreen@chromium.org>
Link: https://lore.kernel.org/r/20200310161502.1.Ia2884ed3c8826f52fbd5dcfa7a376a2fac4f31e6@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sdm845-db845c: Add ov8856 & ov7251 camera nodes

Enable the ov8856 main camera and the ov7251 b/w tracking camera
used on the Qualcomm RB3 kit.

Currently the camera nodes have not yet been attached to an to a
CSI2 endpoint, since no driver currently supports the ISP that the the
SDM845/db845c ships with.

Signed-off-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200324155843.10719-6-robert.foss@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sdm845-db845c: Add pm_8998 gpio names

Add pm_8998 GPIO trace names. These names are defined in
the 96boards db845c mezzanine schematic.

Signed-off-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200324155843.10719-5-robert.foss@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sdm845: Add i2c-qcom-cci node

The sdm845 SOC ships with a CCI controller, which
has two CCI/I2C buses.

Signed-off-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200324155843.10719-4-robert.foss@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: apq8016-sbc: Add CCI/Sensor nodes

Add cci device to msm8916.dtsi.
Add default 96boards camera node for db410c (apq8016-sbc).

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200324155843.10719-3-robert.foss@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: msm8916: Add i2c-qcom-cci node

The msm8916 CCI controller provides one CCI/I2C bus.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200324155843.10719-2-robert.foss@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: qcs404-evb: Enable USB controllers

This patch enables the primary and secondary USB controllers on the
qcs404-evb.

Primary:
The primary USB controller has

- One USB3 SS PHY using gpio-usb-conn
- One USB2 HS PHY in device mode only and no connector driver
  associated.

Secondary:
The second DWC3 controller which has one USB Hi-Speed PHY attached to it.

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-msm@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20200311191517.8221-7-bryan.odonoghue@linaro.org
[bjorn: Dropped usb3 role switching and enabled vbus]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: qcs404-evb: Raise vreg_l12_3p3 minimum voltage

Rather than set the minimum microvolt for this regulator in the USB SS PHY
driver, set it in the DTS.

Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Andy Gross <agross@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-msm@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20200311191517.8221-6-bryan.odonoghue@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: qcs404-evb: Describe external VBUS regulator

VBUS is supplied by an external regulator controlled by a GPIO pin. This
patch models the regulator as regulator-usb3-vbus.

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-msm@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20200311191517.8221-5-bryan.odonoghue@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: qcs404-evb: Define USB ID pin

The USB ID pin is used to tell if a system is a Host or a Device. For our
purposes we will bind this pin into gpio-usb-conn later.

For now define the pin with its pinmux.

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-msm@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20200311191517.8221-4-bryan.odonoghue@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: qcs404-evb: Define VBUS pins

Defines VBUS detect and VBUS boost for the QCS404 EVB.

Detect:
VBUS present/absent is presented to the SoC via a GPIO on the EVB. Define
the pin mapping for later use by gpio-usb-conn.

Boost:
An external regulator is used to trigger VBUS on/off via GPIO. This patch
defines the relevant GPIO in the EVB dts.

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-msm@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20200311191517.8221-3-bryan.odonoghue@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: qcs404: Add USB devices and PHYs

QCS404 sports HS and SS USB controllers based on dwc3 block with two HS
PHYs and one SS PHY. Add nodes for these devices and enable them for
EVB board.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Andy Gross <agross@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-msm@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20200311191517.8221-2-bryan.odonoghue@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: sc7180: Fix cpu compatible

"arm,armv8" compatible should only be used for software models. Replace
it with the real cpu type.

Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Link: https://lore.kernel.org/r/2526d2b2907116d1bb6f7edd194226eb7e24c333.1584516925.git.amit.kucheria@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

dt-bindings: arm: cpus: Add kryo468 compatible

Kryo468 is found in sc7180, so add it to the list of cpu compatibles

Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Link: https://lore.kernel.org/r/cd0f3d35ca0fc2944fd97e030a28318ff82dd5c1.1584516925.git.amit.kucheria@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: msm8916: Conform to the nodename pattern PSCI subnodes

Subnodes for PSCI should start with "power-domain-", so let's adopt to
this.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20200326103932.5809-3-ulf.hansson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: msm8916: Conform to the domain-idle-state binding

As the domain-idle-state DT binding got converted to the json-schema, a few
minor changes were introduced. For example, the states needs to be
specified within a separate node, named domain-idle-states. Let's conform
to the updated binding.

This also silence the below errors for msm8916 from of 'make dtbs_check':
idle-states: cluster-retention:compatible:0: 'arm,idle-state' was expected
idle-states: cluster-gdhs:compatible:0: 'arm,idle-state' was expected

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20200326103932.5809-2-ulf.hansson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

Linux 5.7-rc1

MAINTAINERS: sort field names for all entries

This sorts the actual field names too, potentially causing even more
chaos and confusion at merge time if you have edited the MAINTAINERS
file.  But the end result is a more consistent layout, and hopefully
it's a one-time pain minimized by doing this just before the -rc1
release.

This was entirely scripted:

  ./scripts/parse-maintainers.pl --input=MAINTAINERS --output=MAINTAINERS --order

Requested-by: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS: sort entries by entry name

They are all supposed to be sorted, but people who add new entries don't
always know the alphabet.  Plus sometimes the entry names get edited,
and people don't then re-order the entry.

Let's see how painful this will be for merging purposes (the MAINTAINERS
file is often edited in various different trees), but Joe claims there's
relatively few patches in -next that touch this, and doing it just
before -rc1 is likely the best time.  Fingers crossed.

This was scripted with

  /scripts/parse-maintainers.pl --input=MAINTAINERS --output=MAINTAINERS

but then I also ended up manually upper-casing a few entry names that
stood out when looking at the end result.

Requested-by: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'x86-urgent-2020-04-12' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Thomas Gleixner:
 "A set of three patches to fix the fallout of the newly added split
  lock detection feature.

  It addressed the case where a KVM guest triggers a split lock #AC and
  KVM reinjects it into the guest which is not prepared to handle it.

  Add proper sanity checks which prevent the unconditional injection
  into the guest and handles the #AC on the host side in the same way as
  user space detections are handled. Depending on the detection mode it
  either warns and disables detection for the task or kills the task if
  the mode is set to fatal"

* tag 'x86-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  KVM: VMX: Extend VMXs #AC interceptor to handle split lock #AC in guest
  KVM: x86: Emulate split-lock access as a write in emulator
  x86/split_lock: Provide handle_guest_split_lock()

Merge tag 'timers-urgent-2020-04-12' of git://git./linux/kernel/git/tip/tip

Pull time(keeping) updates from Thomas Gleixner:

 - Fix the time_for_children symlink in /proc/$PID/ so it properly
   reflects that it part of the 'time' namespace

 - Add the missing userns limit for the allowed number of time
   namespaces, which was half defined but the actual array member was
   not added. This went unnoticed as the array has an exessive empty
   member at the end but introduced a user visible regression as the
   output was corrupted.

 - Prevent further silent ucount corruption by adding a BUILD_BUG_ON()
   to catch half updated data.

* tag 'timers-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  ucount: Make sure ucounts in /proc/sys/user don't regress again
  time/namespace: Add max_time_namespaces ucount
  time/namespace: Fix time_for_children symlink

Merge tag 'sched-urgent-2020-04-12' of git://git./linux/kernel/git/tip/tip

Pull scheduler fixes/updates from Thomas Gleixner:

 - Deduplicate the average computations in the scheduler core and the
   fair class code.

 - Fix a raise between runtime distribution and assignement which can
   cause exceeding the quota by up to 70%.

 - Prevent negative results in the imbalanace calculation

 - Remove a stale warning in the workqueue code which can be triggered
   since the call site was moved out of preempt disabled code. It's a
   false positive.

 - Deduplicate the print macros for procfs

 - Add the ucmap values to the SCHED_DEBUG procfs output for completness

* tag 'sched-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/debug: Add task uclamp values to SCHED_DEBUG procfs
  sched/debug: Factor out printing formats into common macros
  sched/debug: Remove redundant macro define
  sched/core: Remove unused rq::last_load_update_tick
  workqueue: Remove the warning in wq_worker_sleeping()
  sched/fair: Fix negative imbalance in imbalance calculation
  sched/fair: Fix race between runtime distribution and assignment
  sched/fair: Align rq->avg_idle and rq->avg_scan_cost

Merge tag 'perf-urgent-2020-04-12' of git://git./linux/kernel/git/tip/tip

Pull perf fixes from Thomas Gleixner:
 "Three fixes/updates for perf:

   - Fix the perf event cgroup tracking which tries to track the cgroup
     even for disabled events.

   - Add Ice Lake server support for uncore events

   - Disable pagefaults when retrieving the physical address in the
     sampling code"

* tag 'perf-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Disable page faults when getting phys address
  perf/x86/intel/uncore: Add Ice Lake server uncore support
  perf/cgroup: Correct indirection in perf_less_group_idx()
  perf/core: Fix event cgroup tracking

Merge tag 'locking-urgent-2020-04-12' of git://git./linux/kernel/git/tip/tip

Pull locking fixes from Thomas Gleixner:
 "Three small fixes/updates for the locking core code:

   - Plug a task struct reference leak in the percpu rswem
     implementation.

   - Document the refcount interaction with PID_MAX_LIMIT

   - Improve the 'invalid wait context' data dump in lockdep so it
     contains all information which is required to decode the problem"

* tag 'locking-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/lockdep: Improve 'invalid wait context' splat
  locking/refcount: Document interaction with PID_MAX_LIMIT
  locking/percpu-rwsem: Fix a task_struct refcount

Merge tag '5.7-rc-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "Ten cifs/smb fixes:

   - five RDMA (smbdirect) related fixes

   - add experimental support for swap over SMB3 mounts

   - also a fix which improves performance of signed connections"

* tag '5.7-rc-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
  smb3: enable swap on SMB3 mounts
  smb3: change noisy error message to FYI
  smb3: smbdirect support can be configured by default
  cifs: smbd: Do not schedule work to send immediate packet on every receive
  cifs: smbd: Properly process errors on ib_post_send
  cifs: Allocate crypto structures on the fly for calculating signatures of incoming packets
  cifs: smbd: Update receive credits before sending and deal with credits roll back on failure before sending
  cifs: smbd: Check send queue size before posting a send
  cifs: smbd: Merge code to track pending packets
  cifs: ignore cached share root handle closing errors

Merge tag 'nfs-for-5.7-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfix from Trond Myklebust:
 "Fix an RCU read lock leakage in pnfs_alloc_ds_commits_list()"

* tag 'nfs-for-5.7-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  pNFS: Fix RCU lock leakage

Merge tag 'nios2-v5.7-rc1' of git://git./linux/kernel/git/lftan/nios2

Pull nios2 updates from Ley Foon Tan:

 - Remove nios2-dev@lists.rocketboards.org from MAINTAINERS

 - remove 'resetvalue' property

 - rename 'altr,gpio-bank-width' -> 'altr,ngpio'

 - enable the common clk subsystem on Nios2

* tag 'nios2-v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2:
  MAINTAINERS: Remove nios2-dev@lists.rocketboards.org
  arch: nios2: remove 'resetvalue' property
  arch: nios2: rename 'altr,gpio-bank-width' -> 'altr,ngpio'
  arch: nios2: Enable the common clk subsystem on Nios2

Merge tag 'dma-mapping-5.7-1' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping fixes from Christoph Hellwig:

 - fix an integer truncation in dma_direct_get_required_mask
   (Kishon Vijay Abraham)

 - fix the display of dma mapping types (Grygorii Strashko)

* tag 'dma-mapping-5.7-1' of git://git.infradead.org/users/hch/dma-mapping:
  dma-debug: fix displaying of dma allocation type
  dma-direct: fix data truncation in dma_direct_get_required_mask()

Merge tag 'kbuild-v5.7-2' of git://git./linux/kernel/git/masahiroy/linux-kbuild

Pull more Kbuild updates from Masahiro Yamada:

 - raise minimum supported binutils version to 2.23

 - remove old CONFIG_AS_* macros that we know binutils >= 2.23 supports

 - move remaining CONFIG_AS_* tests to Kconfig from Makefile

 - enable -Wtautological-compare warnings to catch more issues

 - do not support GCC plugins for GCC <= 4.7

 - fix various breakages of 'make xconfig'

 - include the linker version used for linking the kernel into
   LINUX_COMPILER, which is used for the banner, and also exposed to
   /proc/version

 - link lib-y objects to vmlinux forcibly when CONFIG_MODULES=y, which
   allows us to remove the lib-ksyms.o workaround, and to solve the last
   known issue of the LLVM linker

 - add dummy tools in scripts/dummy-tools/ to enable all compiler tests
   in Kconfig, which will be useful for distro maintainers

 - support the single switch, LLVM=1 to use Clang and all LLVM utilities
   instead of GCC and Binutils.

 - support LLVM_IAS=1 to enable the integrated assembler, which is still
   experimental

* tag 'kbuild-v5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (36 commits)
  kbuild: fix comment about missing include guard detection
  kbuild: support LLVM=1 to switch the default tools to Clang/LLVM
  kbuild: replace AS=clang with LLVM_IAS=1
  kbuild: add dummy toolchains to enable all cc-option etc. in Kconfig
  kbuild: link lib-y objects to vmlinux forcibly when CONFIG_MODULES=y
  MIPS: fw: arc: add __weak to prom_meminit and prom_free_prom_memory
  kbuild: remove -I$(srctree)/tools/include from scripts/Makefile
  kbuild: do not pass $(KBUILD_CFLAGS) to scripts/mkcompile_h
  Documentation/llvm: fix the name of llvm-size
  kbuild: mkcompile_h: Include $LD version in /proc/version
  kconfig: qconf: Fix a few alignment issues
  kconfig: qconf: remove some old bogus TODOs
  kconfig: qconf: fix support for the split view mode
  kconfig: qconf: fix the content of the main widget
  kconfig: qconf: Change title for the item window
  kconfig: qconf: clean deprecated warnings
  gcc-plugins: drop support for GCC <= 4.7
  kbuild: Enable -Wtautological-compare
  x86: update AS_* macros to binutils >=2.23, supporting ADX and AVX2
  crypto: x86 - clean up poly1305-x86_64-cryptogams.S by 'make clean'
  ...

mailmap: Add Sedat Dilek (replacement for expired email address)

I do not longer work for credativ Germany.

Please, use my private email address instead.

This is for the case when people want to CC me on
patches sent from my old business email address.

Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

pNFS: Fix RCU lock leakage

Another brown paper bag moment. pnfs_alloc_ds_commits_list() is leaking
the RCU lock.

Fixes: a9901899b649 ("pNFS: Add infrastructure for cleaning up per-layout commit structures")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

KVM: VMX: Extend VMXs #AC interceptor to handle split lock #AC in guest

Two types of #AC can be generated in Intel CPUs:
 1. legacy alignment check #AC
 2. split lock #AC

Reflect #AC back into the guest if the guest has legacy alignment checks
enabled or if split lock detection is disabled.

If the #AC is not a legacy one and split lock detection is enabled, then
invoke handle_guest_split_lock() which will either warn and disable split
lock detection for this task or force SIGBUS on it.

[ tglx: Switch it to handle_guest_split_lock() and rename the misnamed
  helper function. ]

Suggested-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lkml.kernel.org/r/20200410115517.176308876@linutronix.de

KVM: x86: Emulate split-lock access as a write in emulator

Emulate split-lock accesses as writes if split lock detection is on
to avoid #AC during emulation, which will result in a panic(). This
should never occur for a well-behaved guest, but a malicious guest can
manipulate the TLB to trigger emulation of a locked instruction[1].

More discussion can be found at [2][3].

[1] https://lkml.kernel.org/r/8c5b11c9-58df-38e7-a514-dc12d687b198@redhat.com
[2] https://lkml.kernel.org/r/20200131200134.GD18946@linux.intel.com
[3] https://lkml.kernel.org/r/20200227001117.GX9940@linux.intel.com

Suggested-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lkml.kernel.org/r/20200410115517.084300242@linutronix.de

x86/split_lock: Provide handle_guest_split_lock()

Without at least minimal handling for split lock detection induced #AC,
VMX will just run into the same problem as the VMWare hypervisor, which
was reported by Kenneth.

It will inject the #AC blindly into the guest whether the guest is
prepared or not.

Provide a function for guest mode which acts depending on the host
SLD mode. If mode == sld_warn, treat it like user space, i.e. emit a
warning, disable SLD and mark the task accordingly. Otherwise force
SIGBUS.

 [ bp: Add a !CPU_SUP_INTEL stub for handle_guest_split_lock(). ]

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lkml.kernel.org/r/20200410115516.978037132@linutronix.de
Link: https://lkml.kernel.org/r/20200402123258.895628824@linutronix.de

kbuild: fix comment about missing include guard detection

The keyword here is 'twice' to explain the trick.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

Merge branch 'akpm' (patches from Andrew)

Merge yet more updates from Andrew Morton:

 - Almost all of the rest of MM (memcg, slab-generic, slab, pagealloc,
   gup, hugetlb, pagemap, memremap)

 - Various other things (hfs, ocfs2, kmod, misc, seqfile)

* akpm: (34 commits)
  ipc/util.c: sysvipc_find_ipc() should increase position index
  kernel/gcov/fs.c: gcov_seq_next() should increase position index
  fs/seq_file.c: seq_read(): add info message about buggy .next functions
  drivers/dma/tegra20-apb-dma.c: fix platform_get_irq.cocci warnings
  change email address for Pali Rohár
  selftests: kmod: test disabling module autoloading
  selftests: kmod: fix handling test numbers above 9
  docs: admin-guide: document the kernel.modprobe sysctl
  fs/filesystems.c: downgrade user-reachable WARN_ONCE() to pr_warn_once()
  kmod: make request_module() return an error when autoloading is disabled
  mm/memremap: set caching mode for PCI P2PDMA memory to WC
  mm/memory_hotplug: add pgprot_t to mhp_params
  powerpc/mm: thread pgprot_t through create_section_mapping()
  x86/mm: introduce __set_memory_prot()
  x86/mm: thread pgprot_t through init_memory_mapping()
  mm/memory_hotplug: rename mhp_restrictions to mhp_params
  mm/memory_hotplug: drop the flags field from struct mhp_restrictions
  mm/special: create generic fallbacks for pte_special() and pte_mkspecial()
  mm/vma: introduce VM_ACCESS_FLAGS
  mm/vma: define a default value for VM_DATA_DEFAULT_FLAGS
  ...

Merge tag 'docs-5.7-2' of git://git.lwn.net/linux

Pull Documentation fixes from Jonathan Corbet:
 "A handful of late-arriving fixes for the documentation tree"

* tag 'docs-5.7-2' of git://git.lwn.net/linux:
  Documentation: android: binderfs: add 'stats' mount option
  Documentation: driver-api/usb/writing_usb_driver.rst Updates documentation links
  docs: driver-api: address duplicate label warning
  Documentation: sysrq: fix RST formatting
  docs: kernel-parameters.txt: Fix broken references
  docs: kernel-parameters.txt: Remove nompx
  docs: filesystems: fix typo in qnx6.rst

Merge tag 'for-linus-5.7-ofs1' of git://git./linux/kernel/git/hubcap/linux

Pull orangefs updates from Mike Marshall:
 "A fix and two cleanups.

  Fix:

   - Christoph Hellwig noticed that some logic I added to
     orangefs_file_read_iter introduced a race condition, so he sent a
     reversion patch. I had to modify his patch since reverting at this
     point broke Orangefs.

  Cleanups:

   - Christoph Hellwig noticed that we were doing some unnecessary work
     in orangefs_flush, so he sent in a patch that removed the un-needed
     code.

   - Al Viro told me he had trouble building Orangefs. Orangefs should
     be easy to build, even for Al :-).

     I looked back at the test server build notes in orangefs.txt, just
     in case that's where the trouble really is, and found a couple of
     typos and made a couple of clarifications"

* tag 'for-linus-5.7-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
  orangefs: clarify build steps for test server in orangefs.txt
  orangefs: don't mess with I_DIRTY_TIMES in orangefs_flush
  orangefs: get rid of knob code...

Merge tag 'xtensa-20200410' of git://github.com/jcmvbkbc/linux-xtensa

Pull xtensa updates from Max Filippov:

 - replace setup_irq() by request_irq()

 - cosmetic fixes in xtensa Kconfig and boot/Makefile

* tag 'xtensa-20200410' of git://github.com/jcmvbkbc/linux-xtensa:
  arch/xtensa: fix grammar in Kconfig help text
  xtensa: remove meaningless export ccflags-y
  xtensa: replace setup_irq() by request_irq()

Merge tag 'for-linus-5.7-rc1b-tag' of git://git./linux/kernel/git/xen/tip

Pull more xen updates from Juergen Gross:

 - two cleanups

 - fix a boot regression introduced in this merge window

 - fix wrong use of memory allocation flags

* tag 'for-linus-5.7-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  x86/xen: fix booting 32-bit pv guest
  x86/xen: make xen_pvmmu_arch_setup() static
  xen/blkfront: fix memory allocation flags in blkfront_setup_indirect()
  xen: Use evtchn_type_t as a type for event channels

ipc/util.c: sysvipc_find_ipc() should increase position index

If seq_file .next function does not change position index, read after
some lseek can generate unexpected output.

https://bugzilla.kernel.org/show_bug.cgi?id=206283
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Waiman Long <longman@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: NeilBrown <neilb@suse.com>
Cc: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/b7a20945-e315-8bb0-21e6-3875c14a8494@virtuozzo.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

kernel/gcov/fs.c: gcov_seq_next() should increase position index

If seq_file .next function does not change position index, read after
some lseek can generate unexpected output.

https://bugzilla.kernel.org/show_bug.cgi?id=206283
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: NeilBrown <neilb@suse.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Waiman Long <longman@redhat.com>
Link: http://lkml.kernel.org/r/f65c6ee7-bd00-f910-2f8a-37cc67e4ff88@virtuozzo.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/seq_file.c: seq_read(): add info message about buggy .next functions

Patch series "seq_file .next functions should increase position index".

In Aug 2018 NeilBrown noticed commit 1f4aace60b0e ("fs/seq_file.c:
simplify seq_file iteration code and interface")

"Some ->next functions do not increment *pos when they return NULL...
Note that such ->next functions are buggy and should be fixed.  A simple
demonstration is dd if=/proc/swaps bs=1000 skip=1 Choose any block size
larger than the size of /proc/swaps.  This will always show the whole
last line of /proc/swaps"

Described problem is still actual.  If you make lseek into middle of
last output line following read will output end of last line and whole
last line once again.

  $ dd if=/proc/swaps bs=1  # usual output
  Filename Type Size Used Priority
  /dev/dm-0                             partition 4194812 97536 -2
  104+0 records in
  104+0 records out
  104 bytes copied

  $ dd if=/proc/swaps bs=40 skip=1    # last line was generated twice
  dd: /proc/swaps: cannot skip to specified offset
  v/dm-0                                partition 4194812 97536 -2
  /dev/dm-0                             partition 4194812 97536 -2
  3+1 records in
  3+1 records out
  131 bytes copied

There are lot of other affected files, I've found 30+ including
/proc/net/ip_tables_matches and /proc/sysvipc/*

I've sent patches into maillists of affected subsystems already, this
patch-set fixes the problem in files related to pstore, tracing, gcov,
sysvipc and other subsystems processed via linux-kernel@ mailing list
directly

https://bugzilla.kernel.org/show_bug.cgi?id=206283

This patch (of 4):

Add debug code to seq_read() to detect missed or out-of-tree incorrect
.next seq_file functions.

[akpm@linux-foundation.org: s/pr_info/pr_info_ratelimited/, per Qian Cai]
https://bugzilla.kernel.org/show_bug.cgi?id=206283
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: NeilBrown <neilb@suse.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: Waiman Long <longman@redhat.com>
Link: http://lkml.kernel.org/r/244674e5-760c-86bd-d08a-047042881748@virtuozzo.com
Link: http://lkml.kernel.org/r/7c24087c-e280-e580-5b0c-0cdaeb14cd18@virtuozzo.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/dma/tegra20-apb-dma.c: fix platform_get_irq.cocci warnings

Remove dev_err() messages after platform_get_irq*() failures.
platform_get_irq() already prints an error.

Generated by: scripts/coccinelle/api/platform_get_irq.cocci

Fixes: 6c41ac96ad92 ("dmaengine: tegra-apb: Support COMPILE_TEST")
Signed-off-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Julia Lawall <julia.lawall@inria.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Cc: Laxman Dewangan <ldewangan@nvidia.com>
Cc: Vinod Koul <vinod.koul@linux.intel.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Jon Hunter <jonathanh@nvidia.com>
Link: http://lkml.kernel.org/r/alpine.DEB.2.21.2002271133450.2973@hadrien
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

change email address for Pali Rohár

For security reasons I stopped using gmail account and kernel address is
now up-to-date alias to my personal address.

People periodically send me emails to address which they found in source
code of drivers, so this change reflects state where people can contact
me.

[ Added .mailmap entry as per Joe Perches  - Linus ]
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joe Perches <joe@perches.com>
Link: http://lkml.kernel.org/r/20200307104237.8199-1-pali@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

selftests: kmod: test disabling module autoloading

Test that request_module() fails with -ENOENT when
/proc/sys/kernel/modprobe contains (a) a nonexistent path, and (b) an
empty path.

Case (b) is a regression test for the patch "kmod: make request_module()
return an error when autoloading is disabled".

Tested with 'kmod.sh -t 0010 && kmod.sh -t 0011', and also simply with
'kmod.sh' to run all kmod tests.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jeff Vander Stoep <jeffv@google.com>
Cc: Jessica Yu <jeyu@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: NeilBrown <neilb@suse.com>
Link: http://lkml.kernel.org/r/20200312202552.241885-5-ebiggers@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

selftests: kmod: fix handling test numbers above 9

get_test_count() and get_test_enabled() were broken for test numbers
above 9 due to awk interpreting a field specification like '$0010' as
octal rather than decimal.  Fix it by stripping the leading zeroes.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jeff Vander Stoep <jeffv@google.com>
Cc: Jessica Yu <jeyu@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: NeilBrown <neilb@suse.com>
Link: http://lkml.kernel.org/r/20200318230515.171692-5-ebiggers@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

docs: admin-guide: document the kernel.modprobe sysctl

Document the kernel.modprobe sysctl in the same place that all the other
kernel.* sysctls are documented.  Make sure to mention how to use this
sysctl to completely disable module autoloading, and how this sysctl
relates to CONFIG_STATIC_USERMODEHELPER.

[ebiggers@google.com: v5]
Link: http://lkml.kernel.org/r/20200318230515.171692-4-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jeff Vander Stoep <jeffv@google.com>
Cc: Jessica Yu <jeyu@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: NeilBrown <neilb@suse.com>
Link: http://lkml.kernel.org/r/20200312202552.241885-4-ebiggers@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/filesystems.c: downgrade user-reachable WARN_ONCE() to pr_warn_once()

After request_module(), nothing is stopping the module from being
unloaded until someone takes a reference to it via try_get_module().

The WARN_ONCE() in get_fs_type() is thus user-reachable, via userspace
running 'rmmod' concurrently.

Since WARN_ONCE() is for kernel bugs only, not for user-reachable
situations, downgrade this warning to pr_warn_once().

Keep it printed once only, since the intent of this warning is to detect
a bug in modprobe at boot time.  Printing the warning more than once
wouldn't really provide any useful extra information.

Fixes: 41124db869b7 ("fs: warn in case userspace lied about modprobe return")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Jessica Yu <jeyu@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jeff Vander Stoep <jeffv@google.com>
Cc: Jessica Yu <jeyu@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: NeilBrown <neilb@suse.com>
Cc: <stable@vger.kernel.org> [4.13+]
Link: http://lkml.kernel.org/r/20200312202552.241885-3-ebiggers@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

kmod: make request_module() return an error when autoloading is disabled

Patch series "module autoloading fixes and cleanups", v5.

This series fixes a bug where request_module() was reporting success to
kernel code when module autoloading had been completely disabled via
'echo > /proc/sys/kernel/modprobe'.

It also addresses the issues raised on the original thread
(https://lkml.kernel.org/lkml/20200310223731.126894-1-ebiggers@kernel.org/T/#u)
bydocumenting the modprobe sysctl, adding a self-test for the empty path
case, and downgrading a user-reachable WARN_ONCE().

This patch (of 4):

It's long been possible to disable kernel module autoloading completely
(while still allowing manual module insertion) by setting
/proc/sys/kernel/modprobe to the empty string.

This can be preferable to setting it to a nonexistent file since it
avoids the overhead of an attempted execve(), avoids potential
deadlocks, and avoids the call to security_kernel_module_request() and
thus on SELinux-based systems eliminates the need to write SELinux rules
to dontaudit module_request.

However, when module autoloading is disabled in this way,
request_module() returns 0.  This is broken because callers expect 0 to
mean that the module was successfully loaded.

Apparently this was never noticed because this method of disabling
module autoloading isn't used much, and also most callers don't use the
return value of request_module() since it's always necessary to check
whether the module registered its functionality or not anyway.

But improperly returning 0 can indeed confuse a few callers, for example
get_fs_type() in fs/filesystems.c where it causes a WARNING to be hit:

if (!fs && (request_module("fs-%.*s", len, name) == 0)) {
fs = __get_fs_type(name, len);
WARN_ONCE(!fs, "request_module fs-%.*s succeeded, but still no fs?\n", len, name);
}

This is easily reproduced with:

echo > /proc/sys/kernel/modprobe
mount -t NONEXISTENT none /

It causes:

request_module fs-NONEXISTENT succeeded, but still no fs?
WARNING: CPU: 1 PID: 1106 at fs/filesystems.c:275 get_fs_type+0xd6/0xf0
[...]

This should actually use pr_warn_once() rather than WARN_ONCE(), since
it's also user-reachable if userspace immediately unloads the module.
Regardless, request_module() should correctly return an error when it
fails.  So let's make it return -ENOENT, which matches the error when
the modprobe binary doesn't exist.

I've also sent patches to document and test this case.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Jessica Yu <jeyu@kernel.org>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jeff Vander Stoep <jeffv@google.com>
Cc: Ben Hutchings <benh@debian.org>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200310223731.126894-1-ebiggers@kernel.org
Link: http://lkml.kernel.org/r/20200312202552.241885-1-ebiggers@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/memremap: set caching mode for PCI P2PDMA memory to WC

PCI BAR IO memory should never be mapped as WB, however prior to this
the PAT bits were set WB and it was typically overridden by MTRR
registers set by the firmware.

Set PCI P2PDMA memory to be UC as this is what it currently, typically,
ends up being mapped as on x86 after the MTRR registers override the
cache setting.

Future use-cases may need to generalize this by adding flags to select
the caching type, as some P2PDMA cases may not want UC.  However, those
use-cases are not upstream yet and this can be changed when they arrive.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Eric Badger <ebadger@gigaio.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will@kernel.org>
Link: http://lkml.kernel.org/r/20200306170846.9333-8-logang@deltatee.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/memory_hotplug: add pgprot_t to mhp_params

devm_memremap_pages() is currently used by the PCI P2PDMA code to create
struct page mappings for IO memory.  At present, these mappings are
created with PAGE_KERNEL which implies setting the PAT bits to be WB.
However, on x86, an mtrr register will typically override this and force
the cache type to be UC-.  In the case firmware doesn't set this
register it is effectively WB and will typically result in a machine
check exception when it's accessed.

Other arches are not currently likely to function correctly seeing they
don't have any MTRR registers to fall back on.

To solve this, provide a way to specify the pgprot value explicitly to
arch_add_memory().

Of the arches that support MEMORY_HOTPLUG: x86_64, and arm64 need a
simple change to pass the pgprot_t down to their respective functions
which set up the page tables.  For x86_32, set the page tables
explicitly using _set_memory_prot() (seeing they are already mapped).

For ia64, s390 and sh, reject anything but PAGE_KERNEL settings -- this
should be fine, for now, seeing these architectures don't support
ZONE_DEVICE.

A check in __add_pages() is also added to ensure the pgprot parameter
was set for all arches.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Eric Badger <ebadger@gigaio.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will@kernel.org>
Link: http://lkml.kernel.org/r/20200306170846.9333-7-logang@deltatee.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

powerpc/mm: thread pgprot_t through create_section_mapping()

In prepartion to support a pgprot_t argument for arch_add_memory().

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Eric Badger <ebadger@gigaio.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will@kernel.org>
Link: http://lkml.kernel.org/r/20200306170846.9333-6-logang@deltatee.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

x86/mm: introduce __set_memory_prot()

For use in the 32bit arch_add_memory() to set the pgprot type of the
memory to add.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: David Hildenbrand <david@redhat.com>
Cc: Eric Badger <ebadger@gigaio.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Will Deacon <will@kernel.org>
Link: http://lkml.kernel.org/r/20200306170846.9333-5-logang@deltatee.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

x86/mm: thread pgprot_t through init_memory_mapping()

In preparation to support a pgprot_t argument for arch_add_memory().

It's required to move the prototype of init_memory_mapping() seeing the
original location came before the definition of pgprot_t.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: David Hildenbrand <david@redhat.com>
Cc: Eric Badger <ebadger@gigaio.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Will Deacon <will@kernel.org>
Link: http://lkml.kernel.org/r/20200306170846.9333-4-logang@deltatee.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/memory_hotplug: rename mhp_restrictions to mhp_params

The mhp_restrictions struct really doesn't specify anything resembling a
restriction anymore so rename it to be mhp_params as it is a list of
extended parameters.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Eric Badger <ebadger@gigaio.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will@kernel.org>
Link: http://lkml.kernel.org/r/20200306170846.9333-3-logang@deltatee.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/memory_hotplug: drop the flags field from struct mhp_restrictions

Patch series "Allow setting caching mode in arch_add_memory() for
P2PDMA", v4.

Currently, the page tables created using memremap_pages() are always
created with the PAGE_KERNEL cacheing mode.  However, the P2PDMA code is
creating pages for PCI BAR memory which should never be accessed through
the cache and instead use either WC or UC.  This still works in most
cases, on x86, because the MTRR registers typically override the caching
settings in the page tables for all of the IO memory to be UC-.
However, this tends not to work so well on other arches or some rare x86
machines that have firmware which does not setup the MTRR registers in
this way.

Instead of this, this series proposes a change to arch_add_memory() to
take the pgprot required by the mapping which allows us to explicitly
set pagetable entries for P2PDMA memory to UC.

This changes is pretty routine for most of the arches: x86_64, arm64 and
powerpc simply need to thread the pgprot through to where the page
tables are setup.  x86_32 unfortunately sets up the page tables at boot
so must use _set_memory_prot() to change their caching mode.  ia64, s390
and sh don't appear to have an easy way to change the page tables so,
for now at least, we just return -EINVAL on such mappings and thus they
will not support P2PDMA memory until the work for this is done.  This
should be fine as they don't yet support ZONE_DEVICE.

This patch (of 7):

This variable is not used anywhere and should therefore be removed from
the structure.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Eric Badger <ebadger@gigaio.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Link: http://lkml.kernel.org/r/20200306170846.9333-2-logang@deltatee.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/special: create generic fallbacks for pte_special() and pte_mkspecial()

Currently there are many platforms that dont enable ARCH_HAS_PTE_SPECIAL
but required to define quite similar fallback stubs for special page
table entry helpers such as pte_special() and pte_mkspecial(), as they
get build in generic MM without a config check.  This creates two
generic fallback stub definitions for these helpers, eliminating much
code duplication.

mips platform has a special case where pte_special() and pte_mkspecial()
visibility is wider than what ARCH_HAS_PTE_SPECIAL enablement requires.
This restricts those symbol visibility in order to avoid redefinitions
which is now exposed through this new generic stubs and subsequent build
failure.  arm platform set_pte_at() definition needs to be moved into a
C file just to prevent a build failure.

[anshuman.khandual@arm.com: use defined(CONFIG_ARCH_HAS_PTE_SPECIAL) in mips per Thomas]
Link: http://lkml.kernel.org/r/1583851924-21603-1-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Guo Ren <guoren@kernel.org> [csky]
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
Acked-by: Stafford Horne <shorne@gmail.com> [openrisc]
Acked-by: Helge Deller <deller@gmx.de> [parisc]
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Brian Cain <bcain@codeaurora.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Sam Creasey <sammy@sammy.net>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paulburton@kernel.org>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Link: http://lkml.kernel.org/r/1583802551-15406-1-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/vma: introduce VM_ACCESS_FLAGS

There are many places where all basic VMA access flags (read, write,
exec) are initialized or checked against as a group.  One such example
is during page fault.  Existing vma_is_accessible() wrapper already
creates the notion of VMA accessibility as a group access permissions.

Hence lets just create VM_ACCESS_FLAGS (VM_READ|VM_WRITE|VM_EXEC) which
will not only reduce code duplication but also extend the VMA
accessibility concept in general.

Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Rob Springer <rspringer@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Link: http://lkml.kernel.org/r/1583391014-8170-3-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/vma: define a default value for VM_DATA_DEFAULT_FLAGS

There are many platforms with exact same value for VM_DATA_DEFAULT_FLAGS
This creates a default value for VM_DATA_DEFAULT_FLAGS in line with the
existing VM_STACK_DEFAULT_FLAGS.  While here, also define some more
macros with standard VMA access flag combinations that are used
frequently across many platforms.  Apart from simplification, this
reduces code duplication as well.

Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Guo Ren <guoren@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Brian Cain <bcain@codeaurora.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paulburton@kernel.org>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Chris Zankel <chris@zankel.net>
Link: http://lkml.kernel.org/r/1583391014-8170-2-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>