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The label is useless here. Plus, if there are several examples with the
same label, we'll get very useless yet annoying warnings.
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Miquel Raynal (Schneider Electric) <miquel.raynal@bootlin.com>
Tested-by: Santhosh Kumar K <s-k6@ti.com>
Link: https://patch.msgid.link/20260122-schneider-6-19-rc1-qspi-v4-1-f9c21419a3e6@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Address Space IDs allows the VDUSE framework to support devices able to
expose different virtqueues to different part of the drivers. For
example, to let QEMU handle the net device control virtqueue, so QEMU
always knows the state of the device like mac address or number of
queues enabled, while leaving the dataplane passthrough to the guest
intact. This enables live migration.
Expands the VDUSE documentation to explain how to use the new ioctls or
the new struct members of old ioctls.
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20260119143306.1818855-14-eperezma@redhat.com>
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Add scoped init guard definitions for common synchronization primitives
supported by context analysis.
The scoped init guards treat the context as active within initialization
scope of the underlying context lock, given initialization implies
exclusive access to the underlying object. This allows initialization of
guarded members without disabling context analysis, while documenting
initialization from subsequent usage.
The documentation is updated with the new recommendation. Where scoped
init guards are not provided or cannot be implemented (ww_mutex omitted
for lack of multi-arg guard initializers), the alternative is to just
disable context analysis where guarded members are initialized.
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/all/20251212095943.GM3911114@noisy.programming.kicks-ass.net/
Link: https://patch.msgid.link/20260119094029.1344361-3-elver@google.com
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https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/dt
More Qualcomm Arm64 DeviceTree updates for v6.20
Enable ADSP FastRPC and add missing GPU memory regions on Agatti.
Also add the missing GPU regions on SM6115.
Describe the application subsystem watchdog on Hamoa and enable this in
the EL2 configurations.
Add the camera control interface (CCI) I2C controller on MSM8953, and
describe the camera regulators and the camera EEPROM on Fairphone FP3.
Specify clock frequency for the i2c4 bus on OnePlus 6, to silence the
warnings about missing frequency definition.
Add FastRPC and associated heap memory, as well as Coresight, on SM8750
Switch a variety of platforms to use the generic RPMPD_ constants,
instead of target-specific duplicated, to allow us to drop these from
the header files.
Drop the invalid opp-shared on the QUP OPP table for Talos.
* tag 'qcom-arm64-for-6.20-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
arm64: dts: qcom: sm6115: Add CX_MEM/DBGC GPU regions
arm64: dts: qcom: agatti: Add CX_MEM/DBGC GPU regions
arm64: dts: qcom: sm8750: add ADSP fastrpc-compute-cb nodes
arm64: dts: qcom: sm8750: add memory node for adsp fastrpc
arm64: dts: qcom: switch to RPMPD_* indices
arm64: dts: qcom: oneplus-enchilada: Specify i2c4 clock frequency
arm64: dts: qcom: sm6350: Add clocks for aggre1 & aggre2 NoC
arm64: dts: qcom: agatti: enable FastRPC on the ADSP
arm64: qcom: dts: sm8750: add coresight nodes
arm64: dts: qcom: talos: Drop opp-shared from QUP OPP table
arm64: dts: qcom: x1-el2: Enable the APSS watchdog
arm64: dts: qcom: hamoa: Add the APSS watchdog
dt-bindings: watchdog: Document X1E80100 compatible
arm64: dts: qcom: sdm632-fairphone-fp3: Enable CCI and add EEPROM
arm64: dts: qcom: sdm632-fairphone-fp3: Add camera fixed regulators
arm64: dts: qcom: msm8953: Add CCI nodes
arm64: dts: qcom: msm8953: Re-sort tlmm pinctrl states
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into soc/dt
New boards: Anberic RG-DS game console, Radxa CM3J module + baseboard
for the Rpi CM4 IO board, QNAP TS133 from the RK3568 NAS series.
2 display outputs for the Lion board (old RK3368), TPS65185 pmic for the
PineNote and fixes for the PCIe ranges on both RK356x and RK3588.
These came quite late, so I wanted to give them the time till 6.20-rc1
and have them migrate to stable-kernels afterwards.
The rest is small stuff on a number of boards wrt gpios and compatibles.
* tag 'v6.20-rockchip-dts64-2' of https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip: (25 commits)
arm64: dts: rockchip: Fix rk3588 PCIe range mappings
arm64: dts: rockchip: Fix rk356x PCIe range mappings
arm64: dts: rockchip: Add Anbernic RG-DS
dt-bindings: input: touchscreen: goodix: Add "panel" property
dt-bindings: arm: rockchip: Add Anbernic RG-DS
arm64: dts: rockchip: Explicitly request UFS reset pin on RK3576
arm64: dts: rockchip: Add TPS65185 for PineNote
arm64: dts: rockchip: Do not enable hdmi_sound node on Pinebook Pro
arm64: dts: rockchip: Fix imx258 variant on pinephone pro
arm64: dts: rockchip: Add the Video-Demo overlay for Lion Haikou
arm64: dts: rockchip: Enable pwm1 on rk3368-lion-haikou
arm64: dts: rockchip: Enable HDMI output on RK3368-Lion-Haikou
arm64: dts: rockchip: Add HDMI node to RK3368
arm64: dts: rockchip: Use phandle for i2c_lvds_blc on rk3368-lion haikou
arm64: dts: rockchip: Fix SD card support for RK3576 Nanopi R76s
arm64: dts: rockchip: Fix SD card support for RK3576 EVB1
arm64: dts: rockchip: Add Radxa CM3J on RPi CM4 IO Board
arm64: dts: rockchip: Add Radxa CM3J
dt-bindings: arm: rockchip: Add Radxa CM3J on RPi CM4 IO Board
arm64: dts: rockchip: Make eeprom read-only for Radxa ROCK 3C/5A/5C
...
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/cix into soc/dt
- Add OrangePi 6 Plus board
* tag 'cix-dt-binding-v6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/cix:
dt-bindings: arm: cix: add OrangePi 6 Plus board
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into soc/dt
Microchip AT91 device tree updates for v6.20
This update includes:
- update the SAMA7D65 flexcom nodes to add the missing i2c, spi, and usart
child nodes; the flexcom child nodes were also updated with DMA
properties
- add basic support for the PCB8385 board, based on LAN966X SoC
- drop usb_a9g20-dab-mmx.dtsi as it is not used anywhere in the tree
* tag 'at91-dt-6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
ARM: dts: microchip: Drop usb_a9g20-dab-mmx.dtsi
ARM: dts: Add support for pcb8385
dt-bindings: arm: at91: add lan966 pcb8385 board
ARM: dts: microchip: sama7d65: add missing flexcom nodes
ARM: dts: microchip: sama7d65: add fifo-size to usart
ARM: dts: microchip: sama7d65: add dma properties to usart6
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux into soc/dt
MediaTek ARM64 Device Tree updates
This adds support for new boards and variants based on different
already supported MediaTek SoCs, and improves support for current
boards.
In particular:
- New machines:
- Ezurio Tungsten 510 (MediaTek Genio 510 SoC)
- Ezurio Tungsten 700 (MediaTek Genio 700 SoC)
...improvements for already supported SoCs and machines:
- MT7981b gains support for PCI-Express, USB, Ethernet and for
the "GED" WiFi HW offload
- OpenWRT One board gains support for the same
- MT8188/8195/8390/8395 gains support for the DPI1 interface
and HDMI output from the SoC's HDMI Tx controller along with
its HDMI PHY and DDC IPs, usable on a selection of boards
that expose a HDMI connector, namely:
- All MT8390 Genio EVK based boards
- All MT8395 Genio EVK based boards
- Radxa NIO-12L (MT8395)
...and dtbs_check warning fixes for many of the MTK devicetrees,
including MT6795, MT7981, MT7986, MT7988, MT8173, MT8183, MT8186,
MT8188, MT8192, and a dts coding style fix for Airoha EN7581-EVB.
This also includes a fix for the new devicetree overlay warnings,
adding dtbs with applied overlays for all of the devices having
at least one overlay.
* tag 'mtk-dts64-for-v6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux: (47 commits)
arm64: dts: mediatek: mt8192: Rename mt8192-afe-pcm to audio-controller
dt-bindings: arm: mediatek: audsys: Support mt8192-audsys variant
arm64: dts: mediatek: mt7988a: Fix PCI-Express T-PHY node address
arm64: dts: mediatek: mt8186-evb: Add vproc fixed regulator
arm64: dts: mediatek: mt7981b-openwrt-one: Add address/size cells to eth
arm64: dts: mediatek: mt8183-kukui: Clean up IT6505 regulator supply
arm64: dts: mediatek: mt7986a: Change compatible for SafeXcel crypto
arm64: dts: mediatek: mt8173-evb: Add interrupts to DA9211 regulator
arm64: dts: mediatek: mt6795-xperia-m5: Rename PMIC leds node
arm64: dts: mediatek: mt6795: Fix issues in SCPSYS node
arm64: dts: mediatek: mt6331: Fix VCAM IO regulator name
arm64: dts: mediatek: mt6795-xperia-m5: Add UHS pins for MMC1 and 2
arm64: dts: mediatek: mt8192-asurada: Remove unused clock-stretch-ns
arm64: dts: mediatek: mt8173-elm: Remove regulators from thermal node
arm64: dts: mediatek: mt8173-elm: Fix dsi0 ports warning
arm64: dts: mediatek: mt8173-elm: Fix bluetooth node name and reorder
arm64: dts: mediatek: mt8183-pumpkin: Fix pinmux node names
arm64: dts: mediatek: mt8183-jacuzzi-pico6: Fix typo in pinmux node
arm64: dts: mediatek: mt7981b-openwrt-one: Remove useless cells from flash@0
arm64: dts: mediatek: mt8183-evb: Fix dtbs_check warnings
...
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux into soc/dt
Amlogic ARM64 DT for v6.20:
- Cleanups:
- Use lowercase hex
- Use hyphen in node names
- move CPU OPP table and clock assignment to SoC.dtsi
- drop useless assigned-clock-parents
- MMC clock fixup across multiple families
- Add type-c controller on Radxa Zero 2 and enable NPU
- New board:
- Khadas VIM1s based on Amlogic S4
* tag 'amlogic-arm64-dt-for-v6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux:
arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: enable SDIO interface
arm64: dts: amlogic: add the type-c controller on Radxa Zero 2
arm64: dts: amlogic: meson-sm1-odroid: Eliminate Odroid HC4 power glitches during boot.
arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: enable eMMC storage
arm64: dts: meson-s4-s905y4-khadas-vim1s: add initial device tree
arm64: dts: meson-s4-aq222: update compatible string with s805x2
dt-bindings: arm: amlogic: introduce specific compatibles for S4 family
arm64: dts: amlogic: Enable the npu node on Radxa Zero 2
arm64: dts: amlogic: g12: assign the MMC A signal clock
arm64: dts: amlogic: g12: assign the MMC B and C signal clocks
arm64: dts: amlogic: gx: assign the MMC signal clocks
arm64: dts: amlogic: axg: assign the MMC signal clocks
arm64: dts: amlogic: a1: align the mmc clock setup
arm64: dts: amlogic: c3: assign the MMC signal clocks
arm64: dts: amlogic: s4: fix mmc clock assignment
arm64: dts: amlogic: s4: assign mmc b clock to 24MHz
arm64: dts: amlogic: drop useless assigned-clock-parents
arm64: dts: amlogic: move CPU OPP table and clock assignment to SoC.dtsi
arm64: dts: amlogic: Use lowercase hex
arm64: dts: amlogic: Use hyphen in node names
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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into soc/dt
RISC-V SpacemiT DT changes for 6.20
- Disable Ethernet PHY auto sleep mode
- Add pinctrl IO power support
- Add K3 Pico-ITX board
- Add support for K3 SoC
- Add DWC USB support
- Add reset for eMMC(sdhci)/I2C
- Add PCIe support
- Support PMIC for Jupiter board
* tag 'spacemit-dt-for-6.20-1' of https://github.com/spacemit-com/linux:
riscv: dts: spacemit: Disable ETH PHY sleep mode for OrangePi
riscv: dts: spacemit: pinctrl: update register and IO power
riscv: dts: spacemit: add K3 Pico-ITX board support
riscv: dts: spacemit: add initial support for K3 SoC
dt-bindings: riscv: spacemit: add K3 and Pico-ITX board bindings
dt-bindings: interrupt-controller: add SpacemiT K3 IMSIC
dt-bindings: interrupt-controller: add SpacemiT K3 APLIC
dt-bindings: timer: add SpacemiT K3 CLINT
dt-bindings: riscv: add SpacemiT X100 CPU compatible
riscv: dts: spacemit: k1: Add "b" ISA extension
riscv: dts: spacemit: Enable USB3.0 on BananaPi-F3
riscv: dts: spacemit: Add DWC3 USB 3.0 controller node for K1
riscv: dts: spacemit: Add USB2 PHY node for K1
riscv: dts: spacemit: sdhci: add reset support
riscv: dts: spacemit: add reset property
riscv: dts: spacemit: PCIe and PHY-related updates
riscv: dts: spacemit: Add a PCIe regulator
riscv: dts: spacemit: Define the P1 PMIC regulators for Milk-V Jupiter
riscv: dts: spacemit: Define fixed regulators for Milk-V Jupiter
riscv: dts: spacemit: Enable i2c8 adapter for Milk-V Jupiter
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into soc/dt
Samsung DTS ARM64 changes for v6.20, part two
Add DPU clock management unit nodes to Google GS101.
* tag 'samsung-dt64-6.20-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
arm64: dts: exynos: gs101: add cmu_dpu and sysreg_dpu dt nodes
dt-bindings: clock: google,gs101-clock: Add DPU clock management unit
dt-bindings: clock: google,gs101-clock: fix alphanumeric ordering
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32 into soc/dt
STM32 DT for v6.20, round 1
Highlights:
----------
- MCU:
- Update/add Led support on ST boards.
- MPU:
- STM32MP13:
- Add boot led and red led on ST DK board.
- STMP32MP15:
- Add boot led and red led on ST DK boards.
- Add SPI1 sleep pinctrl group.
- STM32MP23:
- Add green ,orange and boot leds on ST boards.
- Add SPI, I2C, DCMIPP and CSI instances to CLUSTER_PD
power domain.
- Enable analog-filter to all I2C instances.
- STM32MP25:
- Add green ,orange and boot leds on ST boards.
- Add SPI, I2C, DCMIPP and CSI instances to CLUSTER_PD
power domain.
- Enable analog-filter to all I2C instances.
- Add LPDDR/DDR channels to ST boards.
* tag 'stm32-dt-for-v6.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32: (31 commits)
arm/arm64: dts: st: Drop unused .dtsi
arm64: STM32: drop an undefined Kconfig symbol
arm64: dts: st: Minor whitespace cleanup
arm64: dts: st: Use hyphen in node names
arm64: dts: st: add power-domain of dcmipp in stm32mp231.dtsi
arm64: dts: st: add power-domain of dcmipp in stm32mp251.dtsi
dt-bindings: media: st: dcmipp: add 'power-domains' property
arm64: dts: st: add power-domain of csi in stm32mp231.dtsi
arm64: dts: st: add power-domain of csi in stm32mp251.dtsi
dt-bindings: media: st: csi: add 'power-domains' property
ARM: dts: stm32: add spi1 sleep state pinctrl on stm32mp157c-ev1
arm64: dts: st: add DDR channel to stm32mp257f-ev1 board
arm64: dts: st: add LPDDR channel to stm32mp257f-dk board
arm64: dts: st: enable i2c analog-filter in stm32mp231.dtsi
arm64: dts: st: enable i2c analog-filter in stm32mp251.dtsi
arm64: dts: st: add power-domains in all i2c of stm32mp231.dtsi
arm64: dts: st: add power-domains in all i2c of stm32mp251.dtsi
dt-bindings: i2c: st,stm32-i2c: add 'power-domains' property
arm64: dts: st: add power-domains in all spi of stm32mp231.dtsi
arm64: dts: st: add power-domains in all spi of stm32mp251.dtsi
...
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
- Mark the Meson GPIO controller as sleeping to avoid a
context splat
- Fix up the I2S2 and SWR TX group settings in the
Qualcomm SM8350 LPASS pin controller, and implement the
proper .get_direction() callback
- Fix a pin typo in the TG1520 pin controller
- Fix a group name in the Marvell armada 3710 XB pin
controller that got mangled in a DT schema rewrite
* tag 'pinctrl-v6.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
dt-bindings: pinctrl: marvell,armada3710-xb-pinctrl: fix 'usb32_drvvbus0' group name
pinctrl: lpass-lpi: implement .get_direction() for the GPIO driver
pinctrl: th1520: Fix typo
pinctrl: qcom: sm8350-lpass-lpi: Merge with SC7280 to fix I2S2 and SWR TX pins
pinctrl: meson: mark the GPIO controller as sleeping
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https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into soc/dt
i.MX dt-bindgings changes for 6.20:
- New board compatibles for i.MX93 11x11 FRDM, Apalis iMX8QP, i.MX91 FRDM,
ifm VHIP4 EvalBoard v1 and v2, TQ-Systems MBLS1028A/MBLS1028A-IND,
i.MX952 EVK, i.MX8MP FRDM
- Add vendor prefix for ifm electronic gmbh
- A couple of small changes for fsl,imx-gpc.yaml and tcg,tpm-tis-i2c.yaml
* tag 'imx-bindings-6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
dt-bindings: arm: fsl: Add compatible for i.MX95 15x15 FRDM board
dt-bindings: arm: fsl: Document ifm VHIP4 EvalBoard v1 and v2
dt-bindings: vendor-prefixes: Document ifm electronic gmbh
dt-bindings: arm: fsl: Add FRDM-IMX91 board
dt-bindings: tpm: Add st,st33tphf2ei2c
dt-bindings: arm: fsl: Add Apalis iMX8QP
dt-bindings: arm: fsl: add i.MX952 EVK board
dt-bindings: arm: fsl: add i.MX93 11x11 FRDM board
dt-bindings: power: fsl,imx-gpc: Document address-cells
dt-bindings: arm: fsl: Add i.MX8MP FRDM board
dt-bindings: arm: fsl: add TQ-Systems boards MBLS1028A and MBLS1028A-IND
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/dt
dt-bindings: Changes for v6.20-rc1
This series updates various DT bindings for Tegra architecture,
primarily focusing on schema validation fixes and new feature
documentation for Tegra234 and Tegra264 SoCs. Key changes include
converting Tegra20 NAND bindings to YAML, and updating memory, DMA, and
IOMMU definitions for Tegra264 (introducing CMDQV and DBB clock
support). Additionally, it resolves legacy warnings for Tegra30/132
display and VI interfaces.
* tag 'tegra-for-6.20-dt-bindings-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
dt-bindings: display: tegra: document Tegra30 VI and VIP
dt-bindings: display: tegra: document Tegra132 MIPI calibration device
dt-bindings: mtd: nvidia,tegra20-nand: convert to DT schema
dt-bindings: dma: Update ADMA bindings for tegra264
dt-bindings: iommu: Add NVIDIA Tegra CMDQV support
dt-bindings: memory: tegra: Document DBB clock for Tegra264
dt-bindings: tegra: pmc: Update aotag as an optional aperture
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Add a new "min_threads" variable to the nfsd_net, along with the
corresponding netlink interface, to set that value from userland.
Pass that value to svc_set_pool_threads() and svc_set_num_threads().
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
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Merge series from Chin-Ting Kuo <chin-ting_kuo@aspeedtech.com>:
This patch series improves handling of SPI controllers that are
shared by spi-mem devices and other SPI peripherals.
The primary goal of this series is to support non-spi-mem devices in
the ASPEED FMC/SPI controller driver. It also addresses an issue in
the spi-mem framework observed when different types of SPI devices
operate concurrently on the same controller, ensuring that spi-mem
operations are properly serialized.
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https://gitlab.freedesktop.org/drm/rust/kernel into drm-next
DRM Rust changes for v7.0-rc1
DRM:
- Fix documentation for Registration constructors.
- Use pin_init::zeroed() for fops initialization.
- Annotate DRM helpers with __rust_helper.
- Improve safety documentation for gem::Object::new().
- Update AlwaysRefCounted imports.
MM:
- Prevent integer overflow in page_align().
Nova (Core):
- Prepare for Turing support. This includes parsing and handling
Turing-specific firmware headers and sections as well as a Turing
Falcon HAL implementation.
- Get rid of the Result<impl PinInit<T, E>> anti-pattern.
- Relocate initializer-specific code into the appropriate initializer.
- Use CStr::from_bytes_until_nul() to remove custom helpers.
- Improve handling of unexpected firmware values.
- Clean up redundant debug prints.
- Replace c_str!() with native Rust C-string literals.
- Update nova-core task list.
Nova (DRM):
- Align GEM object size to system page size.
Tyr:
- Use generated uAPI bindings for GpuInfo.
- Replace manual sleeps with read_poll_timeout().
- Replace c_str!() with native Rust C-string literals.
- Suppress warnings for unread fields.
- Fix incorrect register name in print statement.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: "Danilo Krummrich" <dakr@kernel.org>
Link: https://patch.msgid.link/DFYW1WV6DUCG.3K8V2DAVD1Q4A@kernel.org
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Document the optional nxp,enable-termination-resistor property for the
i.MX LVDS display bridge.
This boolean property indicates that the built-in 100 Ohm termination
resistor on the LVDS output is enabled. It is controlled via the HS_EN
bit in the LVDS_CTRL register. Enabling the resistor can improve LVDS
signal quality and may prevent visual artifacts on some boards, but
increases the power consumption.
Signed-off-by: Fabio Estevam <festevam@nabladev.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Link: https://lore.kernel.org/r/20260120231930.2782444-1-festevam@gmail.com
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https://gitlab.freedesktop.org/drm/msm into drm-next
Changes for v6.20
GPU:
- Document a612/RGMU dt bindings
- UBWC 6.0 support (for A840 / Kaanapali)
- a225 support
- Fixes
DPU:
- Switched to use virtual planes by default
- Fixed DSI CMD panels on DPU 3.x
- Rewrote format handling to remove intermediate representation
- Fixed watchdog on DPU 8.x+
- Fixed TE / Vsync source setting on DPU 8.x+
- Added 3D_Mux on SC7280
- Kaanapali platform support
- Fixed UBWC register programming
- Made RM reserve DSPP-enabled mixers for CRTCs with LMs.
- Gamma correction support
DP:
- Enabled support for eDP 1.4+ link rate tables
- Fixed MDSS1 DP indices on SA8775P, making them to work
- Fixed msm_dp_ctrl_config_msa() to work with LLVM 20
DSI:
- Documented QCS8300 as compatible with SA8775P
- Kaanapali platform support
DSI PHY:
- switched to divider_determine_rate()
MDP5:
- Dropped support for MSM8998, SDM660 and SDM630 (switched over
to DPU)
MDSS:
- Kaanapali platform support
- Fixed UBWC register programming
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <rob.clark@oss.qualcomm.com>
Link: https://patch.msgid.link/CACSVV03Sbeca93A+gGh-TKpzFYVabbkWVgPCCicG0_NQG+5Y2A@mail.gmail.com
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Linux 6.19-rc7
This is needed for msm and rust trees.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Merge series from "Anton D. Stavinskii" <stavinsky@gmail.com>:
This patch series adds basic audio support for Sophgo CV1800B,
as used on boards such as the Milk-V Duo.
The series introduces the I2S controller driver,
the DAC and ADC codec drivers, corresponding DT bindings,
and DTS updates to wire the components together.
The implementation is based on vendor documentation
and testing on real hardware. This series relies on
recent fixes in the DesignWare AXI DMA support;
in particular, correct operation depends on
the DMA changes discussed at:
https://lore.kernel.org/all/20251214224601.598358-1-inochiama@gmail.com/
The current driver implementation supports a fixed audio configuration
of 48 kHz sample rate and only I2S protocol which is used in codecs.
The series has been tested on the Milk-V Duo 256M board using
the Sophgo SG2002 SoC. The implementation is expected to also work on
Milk-V Duo and Milk-V Module boards based on the SG2000 SoC,
as the audio and DMA blocks are closely related.
Known hardware limitation:
On CV1800B / SG2002, the I2S2 output pins cannot be enabled via
pinctrl alone. Due to SoC design constraints, the output path becomes
functional only after additional vendor-specific register programming.
This series makes the limitation explicit and does not attempt
to work around it implicitly via pinctrl or undocumented behavior.
|
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Merge series from "Peng Fan (OSS)" <peng.fan@oss.nxp.com>:
The main goal is to convert drivers to use GPIO descriptors. While reading
the code, I think it is time to remove ak4641 and pxa2xx-ac97 driver,
more info could be found in commit log of each patch.
Then only need to convert sound/arm/pxa2xx-ac97-lib.c to use GPIO
descriptors. Not have hardware to test the pxa2xx ac97.
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Merge series from Shengjiu Wang <shengjiu.wang@nxp.com>:
Enable AUDMIX on i.MX952 platform, update dt binding document and
driver.
SAI is connected to AUDMIX, and the AUDMIX can be bypassed, so
add 'fsl,sai-amix-mode' property in SAI binding document for this
case.
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The automarkup extension incorrectly recognizes common English words
as C identifiers when they follow struct/union/enum/typedef keywords,
causing normal text like "... (a simple) struct that" (in `workqueue.rst`)
to be rendered as code blocks.
This patch adds Skipidentifiers list to filter out these words.
Signed-off-by: Yulong Han <wheatfox17@icloud.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260125124450.2005006-1-wheatfox17@icloud.com>
|
|
Return the raw JEDEC ID bytes as returned by the RDID command, even for
variations that have the bytes in reverse order. This way we can avoid
ambiguity if the manufacturer ever releases a new chip that returns them
according to standard.
Signed-off-by: Patrick Wicki <patrick.wicki@siemens.com>
Reviewed-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Tested-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Link: https://patch.msgid.link/20260120130603.1066559-2-patrick@subset.ch
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
The documentation had a TODO questioning whether the unit was in
jiffies. The implementation in drivers/accessibility/speakup/main.c
passes spk_bleep_time to msecs_to_jiffies(), confirming the unit is
in milliseconds.
Signed-off-by: Henry Zhang <zeri@umich.edu>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Link: https://patch.msgid.link/20260126201707.1297665-1-zeri@umich.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Pull CPUFreq Arm updates for 7.0 from Viresh Kumar:
"- Update cpufreq-dt-platdev list for tegra, qcom, TI (Aaron Kling,
Dhruva Gole, and Konrad Dybcio).
- Minor improvements to the cpufreq / cpumask rust implementation
(Alexandre Courbot, Alice Ryhl, Tamir Duberstein, and Yilin Chen).
- Add support for AM62L3 SoC to ti-cpufreq driver (Dhruva Gole).
- Update FIE arch_freq_scale in ticks for non-PCC regs (Jie Zhan).
- Other minor cleanups / improvements (Felix Gu, Juan Martinez, Luca
Weiss, and Sergey Shtylyov)."
* tag 'cpufreq-arm-updates-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
cpufreq: scmi: Fix device_node reference leak in scmi_cpu_domain_id()
cpufreq: ti-cpufreq: add support for AM62L3 SoC
cpufreq: dt-platdev: Add ti,am62l3 to blocklist
cpufreq/amd-pstate: Add comment explaining nominal_perf usage for performance policy
cpufreq: scmi: correct SCMI explanation
cpufreq: dt-platdev: Block the driver from probing on more QC platforms
rust: cpumask: rename methods of Cpumask for clarity and consistency
cpufreq: CPPC: Update FIE arch_freq_scale in ticks for non-PCC regs
cpufreq: CPPC: Factor out cppc_fie_kworker_init()
ACPI: CPPC: Factor out and export per-cpu cppc_perf_ctrs_in_pcc_cpu()
rust: cpufreq: replace `kernel::c_str!` with C-Strings
cpufreq: Add Tegra186 and Tegra194 to cpufreq-dt-platdev blocklist
dt-bindings: cpufreq: qcom-hw: document Milos CPUFREQ Hardware
rust: cpufreq: add __rust_helper to helpers
rust: cpufreq: always inline functions using build_assert with arguments
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Document the internal ADC and DAC audio codecs integrated
in the Sophgo CV1800B SoC.
Signed-off-by: Anton D. Stavinskii <stavinsky@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20260120-cv1800b-i2s-driver-v4-3-6ef787dc6426@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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|
There are 4 TDM controllers on the SoC. Each controller can receive or
transmit data over DMA. The dma it self has 8 channels.
Each channel can be connected only to a specific i2s node. But each
of dma channel can have multiple purposes so in order to save dma
channels the configurations allows to use tx and rx, only rx, only tx
or none channels. I2S controller without channels can be useful in
configuration where I2S is used as clock source only and doesn't
produce any data.
Signed-off-by: Anton D. Stavinskii <stavinsky@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260120-cv1800b-i2s-driver-v4-1-6ef787dc6426@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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|
Define CONFIG_ILLEGAL_POINTER_VALUE to the eye-catching non-zero value
of 0xdead000000000000, consistent with other architectures. Assert at
compile-time that the poison pointers that include/linux/poison.h
defines based on this illegal pointer are beyond the largest useful
virtual addresses. Also, assert at compile-time that the range of poison
pointers per include/linux/poison.h (currently a range of less than
0x10000 addresses) does not overlap with the range used for address
handles for s390's non-MIO PCI instructions.
This enables s390 to track the DMA mappings by the network stack's
page_pool that was introduced with [0]. Other functional changes are not
intended.
Other archictectures have introduced this for various other reasons with
commit 5c178472af24 ("riscv: define ILLEGAL_POINTER_VALUE for 64bit")
commit f6853eb561fb ("powerpc/64: Define ILLEGAL_POINTER_VALUE for 64-bit")
commit bf0c4e047324 ("arm64: kconfig: Move LIST_POISON to a safe value")
commit a29815a333c6 ("core, x86: make LIST_POISON less deadly")
[0] https://lore.kernel.org/all/20250409-page-pool-track-dma-v9-0-6a9ef2e0cba8@redhat.com/
Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Gerd Bayer <gbayer@linux.ibm.com>
Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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|
Add compatible strings for the Intel GSW150 which is apparently
identical or at least compatible with the Lantiq PEB7084 Ethernet
switch IC.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/1dc62de5263e8536d5960b837bc5dad7b8f42fad.1769099517.git.daniel@makrotopia.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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|
Ethernet PHYs should use nodes named 'ethernet-phy@'.
Rename the Ethernet PHY nodes in the example to comply.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/94f439aa17d7b51fb367877df4fb84c8c07c7ce4.1769099517.git.daniel@makrotopia.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The AST2700 is the 7th generation SoC from Aspeed, featuring two SGPIO
master controllers: both with 256 serial inputs and outputs.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
Link: https://lore.kernel.org/r/20260123-upstream_sgpio-v2-5-69cfd1631400@aspeedtech.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
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group name
The trailing '0' character of the 'usb32_drvvbus0' pin group got removed
during converting the bindings to DT schema.
$ git grep -n usb32_drvvbus v6.18
v6.18:Documentation/devicetree/bindings/pinctrl/marvell,armada-37xx-pinctrl.txt:106:group usb32_drvvbus0
v6.18:drivers/pinctrl/mvebu/pinctrl-armada-37xx.c:195: PIN_GRP_GPIO("usb32_drvvbus0", 0, 1, BIT(0), "drvbus"),
$ git grep -n usb32_drvvbus v6.19-rc1
v6.19-rc1:Documentation/devicetree/bindings/pinctrl/marvell,armada3710-xb-pinctrl.yaml:91: usb2_drvvbus1, usb32_drvvbus ]
v6.19-rc1:drivers/pinctrl/mvebu/pinctrl-armada-37xx.c:195: PIN_GRP_GPIO("usb32_drvvbus0", 0, 1, BIT(0), "drvbus"),
Add it back to match the group name with the one the driver expects.
Fixes: c1c9641a04e8 ("dt-bindings: pinctrl: Convert marvell,armada-3710-(sb|nb)-pinctrl to DT schema")
Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
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Document LAN969x compatibles for SGPIO.
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Signed-off-by: Linus Walleij <linusw@kernel.org>
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Add documentation for the compatibles designated for the following SKUs
in the LAN9645x family:
lan96455f
lan96457f
lan96459f
with fallback a compatible for the smallest 5-ported SKUs lan96455f.
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Jens Emil Schulz Østergaard <jensemil.schulzostergaard@microchip.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>
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Document the CPUFREQ Hardware on the Milos SoC.
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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There are no more callers of this function after commit f6b2d8b134b2413
("btrfs: track the next file offset in struct btrfs_bio_ctrl"), so
remove the function.
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Document a newly added DAMON_LRU_SORT module parameter for using
monitoring intervals auto-tuning feature of DAMON.
Link: https://lkml.kernel.org/r/20260113152717.70459-12-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Acked-by: wang lian <lianux.mm@gmail.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Document a newly added DAMON_LRU_SORT parameter for doing auto-tuning
aiming an active to inactive memory size ratio.
Link: https://lkml.kernel.org/r/20260113152717.70459-10-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Acked-by: wang lian <lianux.mm@gmail.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Document the new DAMON_LRU_SORT parameter, filter_young_pages. It can be
used to use page level access re-check for the LRU sorting.
Link: https://lkml.kernel.org/r/20260113152717.70459-8-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Acked-by: wang lian <lianux.mm@gmail.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Update design document for newly added DAMOS_QUOTA_[IN]ACTIVE_MEM_BP
metrics. Note that API document is automatically updated by kernel-doc
comment, and the usage document points to the design document which uses
keywords same to that for sysfs inputs. Hence updating only design
document is sufficient.
Link: https://lkml.kernel.org/r/20260113152717.70459-4-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Acked-by: wang lian <lianux.mm@gmail.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Commit a29c0e4b2e86 ("memcg-v1: remove memcg move locking code") removed
folio_memcg_lock(). Delete the final lingering documentation reference.
Link: https://lkml.kernel.org/r/20260101225552.3423108-1-gthelen@google.com
Fixes: a29c0e4b2e86 ("memcg-v1: remove memcg move locking code")
Signed-off-by: Greg Thelen <gthelen@google.com>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Acked-by: SeongJae Park <sj@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: "Michal Koutný" <mkoutny@suse.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Every architecture that supports hugetlb_cma command line parameter
reserves CMA areas for hugetlb during setup_arch().
This obfuscates the ordering of hugetlb CMA initialization with respect to
the rest initialization of the core MM.
Introduce arch_hugetlb_cma_order() callback to allow architectures report
the desired order-per-bit of CMA areas and provide a week implementation
of arch_hugetlb_cma_order() for architectures that don't support hugetlb
with CMA.
Use this callback in hugetlb_cma_reserve() instead if passing the order as
parameter and call hugetlb_cma_reserve() from mm_core_init_early() rather
than have it spread over architecture specific code.
Link: https://lkml.kernel.org/r/20260111082105.290734-28-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Alex Shi <alexs@kernel.org>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: "Borislav Petkov (AMD)" <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Guo Ren <guoren@kernel.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Klara Modin <klarasmodin@gmail.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Magnus Lindholm <linmag7@gmail.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Pratyush Yadav <pratyush@kernel.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: "Ritesh Harjani (IBM)" <ritesh.list@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vineet Gupta <vgupta@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
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Every architecture calls sparse_init() during setup_arch() although the
data structures created by sparse_init() are not used until the
initialization of the core MM.
Beside the code duplication, calling sparse_init() from architecture
specific code causes ordering differences of vmemmap and HVO
initialization on different architectures.
Move the call to sparse_init() from architecture specific code to
free_area_init() to ensure that vmemmap and HVO initialization order is
always the same.
Link: https://lkml.kernel.org/r/20260111082105.290734-25-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Alex Shi <alexs@kernel.org>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: "Borislav Petkov (AMD)" <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Guo Ren <guoren@kernel.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Klara Modin <klarasmodin@gmail.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Magnus Lindholm <linmag7@gmail.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Pratyush Yadav <pratyush@kernel.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: "Ritesh Harjani (IBM)" <ritesh.list@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vineet Gupta <vgupta@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Introduce KHO ABI header describing preservation ABI for memblock's
reserve_mem regions and link the relevant documentation to KHO docs.
[lukas.bulwahn@redhat.com: MAINTAINERS: adjust file entry in MEMBLOCK AND MEMORY MANAGEMENT INITIALIZATION]
Link: https://lkml.kernel.org/r/20260107090438.22901-1-lukas.bulwahn@redhat.com
[rppt@kernel.org: update reserved_mem node description, per Pratyush]
Link: https://lkml.kernel.org/r/aW_M-HYZzx5SkbnZ@kernel.org
Link: https://lkml.kernel.org/r/20260105165839.285270-7-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Pratyush Yadav <pratyush@kernel.org>
Cc: Alexander Graf <graf@amazon.com>
Cc: Jason Miu <jasonmiu@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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The `struct kho_vmalloc` defines the in-memory layout for preserving
vmalloc regions across kexec. This layout is a contract between kernels
and part of the KHO ABI.
To reflect this relationship, the related structs and helper macros are
relocated to the ABI header, `include/linux/kho/abi/kexec_handover.h`.
This move places the structure's definition under the protection of the
KHO_FDT_COMPATIBLE version string.
The structure and its components are now also documented within the ABI
header to describe the contract and prevent ABI breaks.
[rppt@kernel.org: update comment, per Pratyush]
Link: https://lkml.kernel.org/r/aW_Mqp6HcqLwQImS@kernel.org
Link: https://lkml.kernel.org/r/20260105165839.285270-6-rppt@kernel.org
Signed-off-by: Jason Miu <jasonmiu@google.com>
Co-developed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Alexander Graf <graf@amazon.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Pratyush Yadav <pratyush@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Introduce the `include/linux/kho/abi/kexec_handover.h` header file, which
defines the stable ABI for the KHO mechanism. This header specifies how
preserved data is passed between kernels using an FDT.
The ABI contract includes the FDT structure, node properties, and the
"kho-v1" compatible string. By centralizing these definitions, this
header serves as the foundational agreement for inter-kernel communication
of preserved states, ensuring forward compatibility and preventing
misinterpretation of data across kexec transitions.
Since the ABI definitions are now centralized in the header files, the
YAML files that previously described the FDT interfaces are redundant.
These redundant files have therefore been removed.
Link: https://lkml.kernel.org/r/20260105165839.285270-5-rppt@kernel.org
Signed-off-by: Jason Miu <jasonmiu@google.com>
Co-developed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Pratyush Yadav <pratyush@kernel.org>
Cc: Alexander Graf <graf@amazon.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Currently index.rst in KHO documentation looks empty and sad as it only
contains links to "Kexec Handover Concepts" and "KHO FDT" chapters.
Inline contents of these chapters into index.rst to provide a single
coherent chapter describing KHO.
While on it, drop parts of the KHO FDT description that will be superseded
by addition of KHO ABI documentation.
[rppt@kernel.org: fix Documentation/core-api/kho/index.rst]
Link: https://lkml.kernel.org/r/aV4bnHlBXGpT_FMc@kernel.org
Link: https://lkml.kernel.org/r/20260105165839.285270-4-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Pratyush Yadav <pratyush@kernel.org>
Cc: Alexander Graf <graf@amazon.com>
Cc: Jason Miu <jasonmiu@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Pratyush Yadav <pratyush@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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