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2020-08-28net: add option to not create fall-back tunnels in root-ns as wellMahesh Bandewar2-6/+19
The sysctl that was added earlier by commit 79134e6ce2c ("net: do not create fallback tunnels for non-default namespaces") to create fall-back only in root-ns. This patch enhances that behavior to provide option not to create fallback tunnels in root-ns as well. Since modules that create fallback tunnels could be built-in and setting the sysctl value after booting is pointless, so added a kernel cmdline options to change this default. The default setting is preseved for backward compatibility. The kernel command line option of fb_tunnels=initns will set the sysctl value to 1 and will create fallback tunnels only in initns while kernel cmdline fb_tunnels=none will set the sysctl value to 2 and fallback tunnels are skipped in every netns. Signed-off-by: Mahesh Bandewar <maheshb@google.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Maciej Zenczykowski <maze@google.com> Cc: Jian Yang <jianyang@google.com> Cc: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-28media: dt-bindings: Add jpeg enc device tree node documentXia Jiang1-0/+35
Add jpeg enc device tree node document. Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: dt-bindings: tegra: Update VI and CSI bindings with port infoSowjanya Komatineni1-2/+90
Update VI and CSI bindings to add port and endpoint nodes as per media video-interfaces DT binding document. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28dt-bindings: backlight: Add Kinetic KTD253 bindingsLinus Walleij1-0/+46
This adds device tree bindings for the Kinetic KTD253 white LED backlight driver. Cc: devicetree@vger.kernel.org Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-08-28dt-bindings: backlight: Add some common backlight propertiesLinus Walleij1-0/+34
Let's use a common.yaml include for the backlight like we do with the LEDs. The LEDs are inherently incompatible so their bindings cannot be reused for backlight. Cc: devicetree@vger.kernel.org Suggested-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-08-28dt-bindings: mmc: tegra: Add tmclk for Tegra210 and laterSowjanya Komatineni1-3/+29
commit b5a84ecf025a ("mmc: tegra: Add Tegra210 support") Tegra210 and later uses separate SDMMC_LEGACY_TM clock for data timeout. So, this patch adds "tmclk" to Tegra sdhci clock property in the device tree binding. Fixes: b5a84ecf025a ("mmc: tegra: Add Tegra210 support") Cc: stable <stable@vger.kernel.org> # 5.4 Reviewed-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com> Link: https://lore.kernel.org/r/1598548861-32373-4-git-send-email-skomatineni@nvidia.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2020-08-28Merge tag 'drm-misc-next-2020-08-27' of git://anongit.freedesktop.org/drm/drm-misc into drm-nextDave Airlie11-27/+787
drm-misc-next for 5.10: UAPI Changes: Cross-subsystem Changes: Core Changes: - ttm: various cleanups and reworks of the API Driver Changes: - ast: various cleanups - gma500: A few fixes, conversion to GPIOd API - hisilicon: Change of maintainer, various reworks - ingenic: Clock handling and formats support improvements - mcde: improvements to the DSI support - mgag200: Support G200 desktop cards - mxsfb: Support the i.MX7 and i.MX8M and the alpha plane - panfrost: support devfreq - ps8640: Retrieve the EDID from eDP control, misc improvements - tidss: Add a workaround for AM65xx YUV formats handling - virtio: a few cleanups, support for virtio-gpu exported resources - bridges: Support the chained bridges on more drivers, new bridges: Toshiba TC358762, Toshiba TC358775, Lontium LT9611 - panels: Convert to dev_ based logging, read orientation from the DT, various fixes, new panels: Mantix MLAF057WE51-X, Chefree CH101OLHLWH-002, Powertip PH800480T013, KingDisplay KD116N21-30NV-A010 Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200827155517.do6emeacetpturli@gilmour.lan
2020-08-27power: supply: gpio-charger: add charge-current-limit featureSebastian Reichel1-0/+31
Add new charge-current-limit feature to gpio-charger. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-08-27dt-bindings: sram: allwinner, sun4i-a10-system-control: Add R40 compatiblesJernej Skrabec1-0/+6
Allwinner R40 has system controller similar to that in A10. Add compatibles for system controller and sram c1 region. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20200825173523.1289379-2-jernej.skrabec@siol.net
2020-08-27dt-bindings: media: allwinner, sun4i-a10-ir: Add R40 compatibleJernej Skrabec1-1/+4
Allwinner R40 has very similar IR core to that found in A31. Add compatible for R40 and while at it, sort compatibles by family. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20200825171358.1286902-2-jernej.skrabec@siol.net
2020-08-27dt-bindings: mtd: Document boolean NAND ECC propertiesMiquel Raynal1-0/+8
Document nand-use-soft-ecc-engine and nand-no-ecc-engine properties. The former is here to force software correction, the latter prevents any correction to happen. These properties (along with nand-ecc-engine) are supposed to be more accurate than the current nand-ecc-modes wich is very misleading and very often people think it is mandatory while the core should be relied upon to decide which correction to handle. nand-ecc-mode was already inacurate, but it becomes totally problematic with setups where there are several hardware engines. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/linux-mtd/20200827085208.16276-8-miquel.raynal@bootlin.com
2020-08-27dt-bindings: mtd: Document nand-ecc-engineMiquel Raynal1-0/+13
This property is needed to precisely point to the hardware ECC engine to use when there are several of them available. Here, hardware also refers to the on-die possibility. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/linux-mtd/20200827085208.16276-7-miquel.raynal@bootlin.com
2020-08-27dt-bindings: mtd: Document nand-ecc-placementMiquel Raynal1-0/+10
This optional property defines where the ECC bytes are expected to be stored. No value defaults to an unknown location, while these locations can be explicitly set to OOB or interleaved depending if the ECC bytes are entirely stored in the OOB area or mixed with regular data in the main area (also sometimes referred as "syndrome"). Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/linux-mtd/20200827085208.16276-6-miquel.raynal@bootlin.com
2020-08-27dt-bindings: pinctrl: mt8192: add binding documentZhiyong Tao1-0/+155
The commit adds mt8192 compatible node in binding document. Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200817001702.1646-3-zhiyong.tao@mediatek.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-27dt-bindings: pinctrl: Add bindings for Actions S500 SoCCristian Ciocaltea1-0/+240
Add pinctrl and gpio bindings for Actions Semi S500 SoC. Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/7abf618c446b7b648f512afe72e46704156e9912.1596461275.git.cristian.ciocaltea@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-27dt-bindings: gpio: dwapb: Add ngpios property supportSerge Semin1-0/+6
It's redundant to have a vendor-specific property describing a number of GPIOS while there is a generic one. Let's mark the former one as deprecated and define the "ngpios" property supported with constraints of being within [1; 32] range. Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200730152808.2955-2-Sergey.Semin@baikalelectronics.ru Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-27dt-bindings: pinctrl: qcom: Add msm8226 pinctrl bindingsBartosz Dudziak1-0/+132
Add device tree binding Documentation details for Qualcomm msm8226 pinctrl driver. - Bindings documentation was based on qcom,ipq6018-pinctrl.yaml added by Sricharan R <sricharan@codeaurora.org> and then modified for msm8226 content Signed-off-by: Bartosz Dudziak <bartosz.dudziak@snejp.pl> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200716205530.22910-2-bartosz.dudziak@snejp.pl Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-27Documentation/powerpc: fix malformed table in syscall64-abiRandy Dunlap1-1/+3
Fix malformed table warning in powerpc/syscall64-abi.rst by making two tables and moving the headings. Documentation/powerpc/syscall64-abi.rst:53: WARNING: Malformed table. Text in column margin in table line 2. =========== ============= ======================================== --- For the sc instruction, differences with the ELF ABI --- r0 Volatile (System call number.) r3 Volatile (Parameter 1, and return value.) r4-r8 Volatile (Parameters 2-6.) cr0 Volatile (cr0.SO is the return error condition.) cr1, cr5-7 Nonvolatile lr Nonvolatile --- For the scv 0 instruction, differences with the ELF ABI --- r0 Volatile (System call number.) r3 Volatile (Parameter 1, and return value.) r4-r8 Volatile (Parameters 2-6.) =========== ============= ======================================== Fixes: 7fa95f9adaee ("powerpc/64s: system call support for scv/rfscv instructions") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/e06de4d3-a36f-2745-9775-467e125436cc@infradead.org
2020-08-26dt-bindings: ARM: add bindings for the Meraki MR32Christian Lamparter1-0/+2
mark the Meraki MR32 and its SoC (BCM53016) as supported in the bindings documentation file. A quick look on Broadcom BCM5301x series umbrella website reveals: <https://www.broadcom.com/products/embedded-and-networking-processors/communications/bcm5301x> "BCM53012 and BCM53016 with dual-core Cortex-A9 CPU at 1 GHz, 256KB L2 cache, 16-bit DDR2 interface, USB3 integrated switch, GPHYs and packet accelerator". As far as I can tell, Broadcom considers the SoC to be a version of the BCM53012. Signed-off-by: Christian Lamparter <chunkeey@gmail.com> Acked-by: Scott Branden <scott.branden@broadcom.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2020-08-27dt-bindings: mediatek: add mt7623 display-nodesFrank Wunderlich4-4/+8
mt7623 uses mt2701/mt8173 for drm, but have own compatibles Signed-off-by: Frank Wunderlich <frank-w@public-files.de> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2020-08-26dt-bindings: net: Add bindings for Intel Keem BayVineetha G. Jaya Kumaran1-0/+130
Add Device Tree bindings documentation for the ethernet controller on Intel Keem Bay. Signed-off-by: Vineetha G. Jaya Kumaran <vineetha.g.jaya.kumaran@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-26amdgpu: fix Documentation builds for pm/ file movementRandy Dunlap1-12/+12
Fix Documentation errors for amdgpu.rst due to file rename (moved to another subdirectory). Error: Cannot open file ../drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c WARNING: kernel-doc '../scripts/kernel-doc -rst -enable-lineno -function hwmon ../drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c' failed with return code 1 Fixes: e098bc9612c2 ("drm/amd/pm: optimize the power related source code layout") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Evan Quan <evan.quan@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-26dt-bindings: spi: Convert spi-mtk-nor to json-schemaIkjoon Jang2-47/+85
Convert Mediatek ARM SOC's serial NOR flash controller binding to json-schema format. Signed-off-by: Ikjoon Jang <ikjn@chromium.org> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200826085450.508556-1-ikjn@chromium.org Signed-off-by: Mark Brown <broonie@kernel.org>
2020-08-26x86/resctrl: Enable user to view thread or core throttling modeFenghua Yu1-2/+16
Early Intel hardware implementations of Memory Bandwidth Allocation (MBA) could only control bandwidth at the processor core level. This meant that when two processes with different bandwidth allocations ran simultaneously on the same core the hardware had to resolve this difference. It did so by applying the higher throttling value (lower bandwidth) to both processes. Newer implementations can apply different throttling values to each thread on a core. Introduce a new resctrl file, "thread_throttle_mode", on Intel systems that shows to the user how throttling values are allocated, per-core or per-thread. On systems that support per-core throttling, the file will display "max". On newer systems that support per-thread throttling, the file will display "per-thread". AMD confirmed in [1] that AMD bandwidth allocation is already at thread level but that the AMD implementation does not use a memory delay throttle mode. So to avoid confusion the thread throttling mode would be UNDEFINED on AMD systems and the "thread_throttle_mode" file will not be visible. Originally-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> Link: https://lkml.kernel.org/r/1598296281-127595-3-git-send-email-fenghua.yu@intel.com Link: [1] https://lore.kernel.org/lkml/18d277fd-6523-319c-d560-66b63ff606b8@amd.com
2020-08-26power: supply: add wireless typeSubbaraman Narayanamurthy1-1/+1
Currently, power_supply framework supports only Battery, UPS, Mains and USB power_supply_type. Add wireless power_supply_type so that the drivers which supports wireless can register a power supply class device with POWER_SUPPLY_TYPE_WIRELESS. Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org> Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-08-26media: videodev2.h: RGB BT2020 and HSV are always full rangeHans Verkuil2-8/+6
The default RGB quantization range for BT.2020 is full range (just as for all the other RGB pixel encodings), not limited range. Update the V4L2_MAP_QUANTIZATION_DEFAULT macro and documentation accordingly. Also mention that HSV is always full range and cannot be limited range. When RGB BT2020 was introduced in V4L2 it was not clear whether it should be limited or full range, but full range is the right (and consistent) choice. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-26media: dev-sliced-vbi.rst: fix wrong typeHans Verkuil1-1/+1
The documentation reported service_set as a __u32, but according to videodev2.h it is a __u16. Correct the documentation. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-26dt-bindings: regulator: mt6360: Add DT binding documentationGene Chen1-0/+113
Add a devicetree binding documentation for the mt6360 regulator driver. Signed-off-by: Gene Chen <gene_chen@richtek.com> Link: https://lore.kernel.org/r/1598438958-26802-3-git-send-email-gene.chen.richtek@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-08-26lockdep/Documention: Recursive read lock detection reasoningBoqun Feng1-0/+258
This patch add the documentation piece for the reasoning of deadlock detection related to recursive read lock. The following sections are added: * Explain what is a recursive read lock, and what deadlock cases they could introduce. * Introduce the notations for different types of dependencies, and the definition of strong paths. * Proof for a closed strong path is both sufficient and necessary for deadlock detections with recursive read locks involved. The proof could also explain why we call the path "strong" Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20200807074238.1632519-3-boqun.feng@gmail.com
2020-08-26Documentation/locking/locktypes: Fix local_locks documentationMarta Rybczynska1-12/+12
Fix issues with local_locks documentation: - fix function names, local_lock.h has local_unlock_irqrestore(), not local_lock_irqrestore() - fix mapping table, local_unlock_irqrestore() maps to local_irq_restore(), not _save() Signed-off-by: Marta Rybczynska <rybczynska@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Will Deacon <will@kernel.org> Link: https://lkml.kernel.org/r/CAApg2=SKxQ3Sqwj6TZnV-0x0cKLXFKDaPvXT4N15MPDMKq724g@mail.gmail.com
2020-08-25bpf: Update .BTF_ids section in btf.rst with sets infoJiri Olsa1-0/+25
Updating btf.rst doc with info about BTF_SET_START/END macros. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/20200825192124.710397-12-jolsa@kernel.org
2020-08-25regulator: rt4801: Specify additionalProperties: falseMark Brown1-0/+2
Reported-by: Rob Herring <robh@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200825101250.9485-1-broonie@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2020-08-25dt-bindings: power: supply: Add device-tree binding for Summit SMB3xxDavid Heidelberg1-0/+152
Summit SMB3xx series is a Programmable Switching Li+ Battery Charger. This patch adds device-tree binding for Summit SMB345, SMB347 and SMB358 chargers. Signed-off-by: David Heidelberg <david@ixit.cz> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-08-25dt-bindings: battery: Add temperature propertiesDmitry Osipenko1-0/+24
Document generic battery temperature properties. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-08-25dt-bindings: power: reset: Convert reboot-mode to YAMLElliot Berman2-25/+47
Convert reboot-mode bindings to YAML. Signed-off-by: Elliot Berman <eberman@codeaurora.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-08-25dt-bindings: arm: at91: Add GARDENA smart Gateway (Art. 19000) boardReto Schneider1-0/+1
Document devicetree's bindings for the GARDENA smart Gateway with article number 19000, based on the SAM9G25 Atmel SoC. Signed-off-by: Reto Schneider <reto.schneider@husqvarnagroup.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20200822151023.31629-1-code@reto-schneider.ch
2020-08-25dt-bindings: dma: allwinner,sun50i-a64-dma: Add R40 compatibleJernej Skrabec1-3/+6
R40 has DMA engine which is basically the same as that in A64, with only known difference being number of request sources and number of channels. Add compatible for it. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20200825100030.1145356-2-jernej.skrabec@siol.net
2020-08-25Merge tag 'v5.9-rc2' into spi-5.10Mark Brown21-54/+120
Linux 5.9-rc2
2020-08-25Merge tag 'v5.9-rc2' into regulator-5.10Mark Brown22-54/+121
Linux 5.9-rc2
2020-08-25Merge tag 'v5.9-rc2' into asoc-5.10Mark Brown22-54/+121
Linux 5.9-rc2
2020-08-25dt-bindings: mmc: Add missing description for clk_in/out_sd1Michal Simek1-3/+7
The commit a8fdb80f4d47 ("arm64: zynqmp: Add ZynqMP SDHCI compatible string") added clock-output-names for both SDHCIs before DT binding yaml conversion. But only clk_in/out_sd0 clock names have been covered by DT binding which ends up with dt yaml checking warnings as: From schema: .../Documentation/devicetree/bindings/mmc/arasan,sdhci.yaml ... mmc@ff170000: clock-output-names:0: 'clk_out_sd0' was expected ... mmc@ff170000: clock-output-names:1: 'clk_in_sd0' was expected Fixes: 16ecd8f33c6e ("dt-bindings: mmc: convert arasan sdhci bindings to yaml") Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Manish Narani <manish.narani@xilinx.com> Link: https://lore.kernel.org/r/aef586778921c93377ec2f31c86e151b6e93f6c7.1598257520.git.michal.simek@xilinx.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2020-08-25dt-bindings: clk: sunxi-ccu: add compatible string for A100 CCU and R-CCUYangtao Li1-1/+6
This patch adds binding to a100's ccu clock and r-ccu clock. Signed-off-by: Yangtao Li <frank@allwinnertech.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/5791b0a39e7ca2f1c11d3bade9ebeb7fece31230.1595572867.git.frank@allwinnertech.com
2020-08-25dt-bindings: arm: sunxi: Add Allwinner A100 Perf1 Board bindingsYangtao Li1-0/+5
Document board compatible names for Allwinner A100 Perf1 Board. Signed-off-by: Yangtao Li <frank@allwinnertech.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/0368996b732f300d0b5719e51dbd4322fa09053d.1595572867.git.frank@allwinnertech.com
2020-08-25dt-bindings: irq: sun7i-nmi: Add binding for A100's NMI controllerYangtao Li1-0/+3
Add a binding for A100's nmi controller. Signed-off-by: Yangtao Li <frank@allwinnertech.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/953b76413563551b82dd11cadbc99c695f74f721.1595572867.git.frank@allwinnertech.com
2020-08-25dt-bindings: irq: sun7i-nmi: fix dt-binding for a80 nmiYangtao Li1-1/+1
There is no one use "allwinner,sun9i-a80-sc-nmi". The A80 uses "allwinner,sun9i-a80-nmi". Let's fix it. Signed-off-by: Yangtao Li <frank@allwinnertech.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/fb081585c4fedcb9b8b95e5f16879dff482c9717.1595572867.git.frank@allwinnertech.com
2020-08-25dt-bindings: gpu: mali-utgard: Add Allwinner R40 compatibleJernej Skrabec1-0/+2
Allwinner R40 SoC contains Mali400, so add its specific compatible to bindings. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20200824150434.951693-2-jernej.skrabec@siol.net
2020-08-24rcutorture: Allow pointer leaks to test diagnostic codePaul E. McKenney1-0/+12
This commit adds an rcutorture.leakpointer module parameter that intentionally leaks an RCU-protected pointer out of the RCU read-side critical section and checks to see if the corresponding grace period has elapsed, emitting a WARN_ON_ONCE() if so. This module parameter can be used to test facilities like CONFIG_RCU_STRICT_GRACE_PERIOD that end grace periods quickly. While in the area, also document rcutorture.irqreader, which was previously left out. Reported-by Jann Horn <jannh@google.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2020-08-24rcu: Provide optional RCU-reader exit delay for strict GPsPaul E. McKenney1-0/+9
The goal of this series is to increase the probability of tools like KASAN detecting that an RCU-protected pointer was used outside of its RCU read-side critical section. Thus far, the approach has been to make grace periods and callback processing happen faster. Another approach is to delay the pointer leaker. This commit therefore allows a delay to be applied to exit from RCU read-side critical sections. This slowdown is specified by a new rcutree.rcu_unlock_delay kernel boot parameter that specifies this delay in microseconds, defaulting to zero. Reported-by Jann Horn <jannh@google.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2020-08-24rcuperf: Change rcuperf to rcuscalePaul E. McKenney1-18/+18
This commit further avoids conflation of rcuperf with the kernel's perf feature by renaming kernel/rcu/rcuperf.c to kernel/rcu/rcuscale.c, and also by similarly renaming the functions and variables inside this file. This has the side effect of changing the names of the kernel boot parameters, so kernel-parameters.txt and ver_functions.sh are also updated. The rcutorture --torture type was also updated from rcuperf to rcuscale. [ paulmck: Fix bugs located by Stephen Rothwell. ] Reported-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2020-08-24scftorture: Add smp_call_function() torture testPaul E. McKenney1-0/+92
This commit adds an smp_call_function() torture test that repeatedly invokes this function and complains if things go badly awry. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>