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Add the MAINTAINERS entries for the Renesas RZ/G2L MTU3a counter
driver.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230330111632.169434-6-biju.das.jz@bp.renesas.com
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds
Pull LED updates from Lee Jones:
"New Drivers:
- Add support for MediaTek MT6370 LED Indicator
- Add support for MediaTek MT6370 Flashlight
- Add support for QCOM PMIC Flash
- Add support for Rohm BD2606MVV Charge Pump LED
New Device Support:
- Add support for PMK8550 PWM to QCOM LPG
New Functionality:
- Add support for high resolution PWM to QCOM LPG
Fix-ups:
- Kconfig 'depends' and 'select' dependency changes
- Remove unused / irrelevant includes
- Remove unnecessary checks (already performed further into the call stack)
- Trivial: Fix commentary, simplify error messages
- Rid 'defined but not used' warnings
- Provide documentation
- Explicitly provide include files
Bug Fixes:
- Mark GPIO LED as BROKEN
- Fix Kconfig entries
- Fix various Smatch staticify reports
- Fix error handling (or a lack there of)"
* tag 'leds-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: (30 commits)
leds: bd2606mvv: Driver for the Rohm 6 Channel i2c LED driver
dt-bindings: leds: Add ROHM BD2606MVV LED
docs: leds: ledtrig-oneshot: Fix spelling mistake
leds: pwm-multicolor: Simplify an error message
dt-bindings: leds: Convert PCA9532 to dtschema
leds: rgb: leds-qcom-lpg: Add support for PMK8550 PWM
leds: rgb: leds-qcom-lpg: Add support for high resolution PWM
dt-bindings: leds-qcom-lpg: Add qcom,pmk8550-pwm compatible string
leds: tca6507: Fix error handling of using fwnode_property_read_string
leds: flash: Set variables mvflash_{3,4}ch_regs storage-class-specifier to static
leds: rgb: mt6370: Correct config name to select in LEDS_MT6370_RGB
MAINTAINERS: Add entry for LED devices documentation
Documentation: leds: MT6370: Use bullet lists for timing variables
Documentation: leds: mt6370: Properly wrap hw_pattern chart
Documentation: leds: Add MT6370 doc to the toctree
leds: rgb: mt6370: Fix implicit declaration for FIELD_GET
docs: leds: Add MT6370 RGB LED pattern document
leds: flash: mt6370: Add MediaTek MT6370 flashlight support
leds: rgb: mt6370: Add MediaTek MT6370 current sink type LED Indicator support
dt-bindings: leds: spmi-flash-led: Add pm6150l compatible
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When given patches that only touch documentation directory for LED
devices (Documentation/leds/), get_maintainer doesn't list mailing list
for LED subsystem. However, the patch should be seen on that list in order
to be applied.
Add the entry for Documentation/leds/.
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230319084604.19749-1-bagasdotme@gmail.com
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- a new driver for Novatek touch controllers
- a new driver for power button for NXP BBNSM
- a skeleton KUnit tests for the input core
- improvements to Xpad game controller driver to support more devices
- improvements to edt-ft5x06, hideep and other drivers
* tag 'input-for-v6.4-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (42 commits)
Revert "Input: xpad - fix support for some third-party controllers"
dt-bindings: input: pwm-beeper: convert to dt schema
Input: xpad - fix PowerA EnWired Controller guide button
Input: xpad - add constants for GIP interface numbers
Input: synaptics-rmi4 - fix function name in kerneldoc
Input: raspberrypi-ts - fix refcount leak in rpi_ts_probe
Input: edt-ft5x06 - select REGMAP_I2C
Input: melfas_mip4 - report palm touches
Input: cma3000_d0x - remove unneeded code
Input: edt-ft5x06 - calculate points data length only once
Input: edt-ft5x06 - unify the crc check
Input: edt-ft5x06 - convert to use regmap API
Input: edt-ft5x06 - don't print error messages with dev_dbg()
Input: edt-ft5x06 - remove code duplication
Input: edt-ft5x06 - don't recalculate the CRC
Input: edt-ft5x06 - add spaces to ensure format specification
Input: edt-ft5x06 - remove unnecessary blank lines
Input: edt-ft5x06 - fix indentation
Input: tsc2007 - enable cansleep pendown GPIO
Input: Add KUnit tests for some of the input core helper functions
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Add a new driver for the Novatek i2c touchscreen controller as found
on the Acer Iconia One 7 B1-750 tablet. Unfortunately the touchscreen
controller model-number is unknown. Even with the tablet opened up it
is impossible to read the model-number.
Android calls this a "NVT-ts" touchscreen, but that may apply to other
Novatek controller models too.
This appears to be the same controller as the one supported by
https://github.com/advx9600/android/blob/master/touchscreen/NVTtouch_Android4.0/NVTtouch.c
but unfortunately that does not give us a model-number either.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/20230326212308.55730-1-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
Pull i3c updates from Alexandre Belloni:
"Subsystem:
- OF alias bus numbering
- convert to platform remove callback returning void
New driver:
- AST2600 controller, based on Synopsys DesignWare IP
Driver update:
- dw: add infrastructure to support different platform integrations"
* tag 'i3c/for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
i3c: ast2600: set variable ast2600_i3c_ops storage-class-specifier to static
i3c: ast2600: fix register setting for 545 ohm pullups
i3c: ast2600: enable IBI support
i3c: dw: Add a platform facility for IBI PEC workarounds
i3c: dw: Add support for in-band interrupts
i3c: dw: Turn DAT array entry into a struct
i3c: dw: Create a generic fifo read function
i3c: Allow OF-alias-based persistent bus numbering
i3c: ast2600: Add AST2600 platform-specific driver
dt-bindings: i3c: Add AST2600 i3c controller
i3c: dw: Add infrastructure for platform-specific implementations
i3c: dw: use bus mode rather than device reg for conditional tCAS setting
i3c: dw: Return the length from a read priv_xfer
i3c: svc: Convert to platform remove callback returning void
i3c: mipi-i3c-hci: Convert to platform remove callback returning void
i3c: cdns: Convert to platform remove callback returning void
i3c: dw: Convert to platform remove callback returning void
i3c: Make i3c_master_unregister() return void
i3c: dw: drop of_match_ptr for ID table
i3c: Correct reference to the I²C device data type
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Now that we have platform-specific infrastructure for the dw i3c driver,
add platform support for the ASPEED AST2600 SoC.
The AST2600 has a small set of "i3c global" registers, providing
platform-level i3c configuration outside of the i3c core.
For the ast2600, we need a couple of extra setup operations:
- on probe: find the i3c global register set and parse the SDA pullup
resistor values
- on init: set the pullups accordingly, and set the i3c instance IDs
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20230331091501.3800299-4-jk@codeconstruct.com.au
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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Pull rust updates from Miguel Ojeda
"More additions to the Rust core. Importantly, this adds the pin-init
API, which will be used by other abstractions, such as the
synchronization ones added here too:
- pin-init API: a solution for the safe pinned initialization
problem.
This allows to reduce the need for 'unsafe' code in the kernel when
dealing with data structures that require a stable address. Commit
90e53c5e70a6 ("rust: add pin-init API core") contains a nice
introduction -- here is an example of how it looks like:
#[pin_data]
struct Example {
#[pin]
value: Mutex<u32>,
#[pin]
value_changed: CondVar,
}
impl Example {
fn new() -> impl PinInit<Self> {
pin_init!(Self {
value <- new_mutex!(0),
value_changed <- new_condvar!(),
})
}
}
// In a `Box`.
let b = Box::pin_init(Example::new())?;
// In the stack.
stack_pin_init!(let s = Example::new());
- 'sync' module:
New types 'LockClassKey' ('struct lock_class_key'), 'Lock',
'Guard', 'Mutex' ('struct mutex'), 'SpinLock' ('spinlock_t'),
'LockedBy' and 'CondVar' (uses 'wait_queue_head_t'), plus macros
such as 'static_lock_class!' and 'new_spinlock!'.
In particular, 'Lock' and 'Guard' are generic implementations that
contain code that is common to all locks. Then, different backends
(the new 'Backend' trait) are implemented and used to define types
like 'Mutex':
type Mutex<T> = Lock<T, MutexBackend>;
In addition, new methods 'assume_init()', 'init_with()' and
'pin_init_with()' for 'UniqueArc<MaybeUninit<T>>' and 'downcast()'
for 'Arc<dyn Any + Send + Sync>'; as well as 'Debug' and 'Display'
implementations for 'Arc' and 'UniqueArc'. Reduced stack usage of
'UniqueArc::try_new_uninit()', too.
- 'types' module:
New trait 'AlwaysRefCounted' and new type 'ARef' (an owned
reference to an always-reference-counted object, meant to be used
in wrappers for C types that have their own ref counting
functions).
Moreover, new associated functions 'raw_get()' and 'ffi_init()' for
'Opaque'.
- New 'task' module with a new type 'Task' ('struct task_struct'),
and a new macro 'current!' to safely get a reference to the current
one.
- New 'ioctl' module with new '_IOC*' const functions (equivalent to
the C macros).
- New 'uapi' crate, intended to be accessible by drivers directly.
- 'macros' crate: new 'quote!' macro (similar to the one provided in
userspace by the 'quote' crate); and the 'module!' macro now allows
specifying multiple module aliases.
- 'error' module:
New associated functions for the 'Error' type, such as
'from_errno()' and new functions such as 'to_result()'.
- 'alloc' crate:
More fallible 'Vec' methods: 'try_resize` and
'try_extend_from_slice' and the infrastructure (imported from the
Rust standard library) they need"
* tag 'rust-6.4' of https://github.com/Rust-for-Linux/linux: (44 commits)
rust: ioctl: Add ioctl number manipulation functions
rust: uapi: Add UAPI crate
rust: sync: introduce `CondVar`
rust: lock: add `Guard::do_unlocked`
rust: sync: introduce `LockedBy`
rust: introduce `current`
rust: add basic `Task`
rust: introduce `ARef`
rust: lock: introduce `SpinLock`
rust: lock: introduce `Mutex`
rust: sync: introduce `Lock` and `Guard`
rust: sync: introduce `LockClassKey`
MAINTAINERS: add Benno Lossin as Rust reviewer
rust: init: broaden the blanket impl of `Init`
rust: sync: add functions for initializing `UniqueArc<MaybeUninit<T>>`
rust: sync: reduce stack usage of `UniqueArc::try_new_uninit`
rust: types: add `Opaque::ffi_init`
rust: prelude: add `pin-init` API items to prelude
rust: init: add `Zeroable` trait and `init::zeroed` function
rust: init: add `stack_pin_init!` macro
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Benno has been involved with the Rust for Linux project for
the better part of a year now. He has been working on solving
the safe pinned initialization problem [1], which resulted in
the pin-init API patch series [2] that allows to reduce the
need for `unsafe` code in the kernel. He is also working on
the field projection RFC for Rust [3] to bring pin-init as
a language feature.
His expertise with the language will be very useful to have
around in the future if Rust grows within the kernel, thus
add him to the `RUST` entry as reviewer.
Link: https://rust-for-linux.com/the-safe-pinned-initialization-problem [1]
Link: https://lore.kernel.org/rust-for-linux/20230408122429.1103522-1-y86-dev@protonmail.com/ [2]
Link: https://github.com/rust-lang/rfcs/pull/3318 [3]
Cc: Benno Lossin <benno.lossin@proton.me>
Reviewed-by: Alex Gaynor <alex.gaynor@gmail.com>
Link: https://lore.kernel.org/r/20230412221823.830135-1-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"Nothing looks out of the ordinary in this batch of clk driver updates.
There are a couple patches to the core clk framework, but they're all
basically cleanups or debugging aids. The driver updates and new
additions are dominated in the diffstat by Qualcomm and MediaTek
drivers. Qualcomm gained a handful of new drivers for various SoCs,
and MediaTek gained a bunch of drivers for MT8188. The MediaTek
drivers are being modernized as well, so there are updates all over
that vendor's clk drivers. There's also a couple other new clk drivers
in here, for example the Starfive JH7110 SoC support is added.
Outside of the two major SoC vendors though, we have the usual
collection of non-critical fixes and cleanups to various clk drivers.
It's good to see that we're getting more cleanups and modernization
patches. Maybe one day we'll be able to properly split clk providers
from clk consumers.
Core:
- Print an informational message before disabling unused clks
New Drivers:
- BCM63268 timer clock and reset controller
- Frequency Hopping (FHCTL) on MediaTek MT6795, MT8173, MT8192 and
MT8195 SoCs
- Mediatek MT8188 SoC clk drivers
- Clock driver for Sunplus SP7021 SoC
- Clk driver support for Loongson-2 SoCs
- Clock driver for Skyworks Si521xx I2C PCIe clock generators
- Initial Starfive JH7110 clk/reset support
- Global clock controller drivers for Qualcomm SM7150, IPQ9574,
MSM8917 and IPQ5332 SoCs
- GPU clock controller drivers for SM6115, SM6125, SM6375 and SA8775P
SoCs
Updates:
- Shrink size of clk_fractional_divider a little
- Convert various clk drivers to devm_of_clk_add_hw_provider()
- Convert platform clk drivers to remove_new()
- Converted most Mediatek clock drivers to struct platform_driver
- MediaTek clock drivers can be built as modules
- Reimplement Loongson-1 clk driver with DT support
- Migrate socfpga clk driver to of_clk_add_hw_provider()
- Support for i3c clks on Aspeed ast2600 SoCs
- Add clock generic devm_clk_hw_register_gate_parent_data
- Add audiomix block control for i.MX8MP
- Add support for determine_rate to i.MX composite-8m
- Let the LCDIF Pixel clock of i.MX8MM and i.MX8MN set parent rate
- Provide clock name in error message for clk-gpr-mux on get parent
failure
- Drop duplicate imx_clk_mux_flags macro
- Register the i.MX8MP Media Disp2 Pix clock as bus clock
- Add Media LDB root clock to i.MX8MP
- Make i.MX8MP nand_usdhc_bus clock as non-critical
- Fix the rate table for i.MX fracn-gppll
- Disable HW control for the fracn-gppll in order to be controlled by
register write
- Add support for interger PLL in fracn-gppll
- Add mcore_booted module parameter to i.MX93 provider
- Add NIC, A55 and ARM PLL clocks to i.MX93
- Fix i.MX8ULP XBAR_DIVBUS and AD_SLOW clock parents
- Use "divider closest" clock type for PLL4_PFD dividers on i.MX8ULP
to get more accurate clock rates
- Mark the MU0_Bi and TPM5 clocks on i.MX8ULP as critical
- Update some of the i.MX critical clocks flags to allow glitchless
on-the-fly rate change.
- Add I2C5 clock on Renesas R-Car V3H
- Exynos850: Add CMU_G3D clock controller for the Mali GPU
- Extract Exynos5433 (ARM64) clock controller power management code
to common driver parts
- Exynos850: make PMU_ALIVE_PCLK clock critical
- Add Audio, thermal, camera (CSI-2), Image Signal Processor/Channel
Selector (ISPCS), and video capture (VIN) clocks on Renesas R-Car
V4H
- Add video capture (VIN) clocks on Renesas R-Car V3H
- Add Cortex-A53 System CPU (Z2) clocks on Renesas R-Car V3M and V3H
- Support for Stromer Plus PLL on Qualcomm IPQ5332
- Add a missing reset to Qualcomm QCM2290
- Migrate Qualcomm IPQ4019 to clk_parent_data
- Make USB GDSCs enter retention state when disabled on Qualcomm
SM6375, MSM8996 and MSM8998 SoCs
- Set floor rounding clk_ops for Qualcomm QCM2290 SDCC2 clk
- Add two EMAC GDSCs on Qualcomm SC8280XP
- Use shared rcg clk ops in Qualcomm SM6115 GCC
- Park Qualcomm SM8350 PCIe PIPE clks when disabled
- Add GDSCs to Qualcomm SC7280 LPASS audio clock controller
- Add missing XO clocks to Qualcomm MSM8226 and MSM8974
- Convert some Qualcomm clk DT bindings to YAML
- Reparenting fix for the clock supplying camera modules on Rockchip
rk3399
- Mark more critical (bus-)clocks on Rockchip rk3588"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (290 commits)
clk: qcom: gcc-sc8280xp: Add EMAC GDSCs
clk: starfive: Delete the redundant dev_set_drvdata() in JH7110 clock drivers
clk: rockchip: rk3588: make gate linked clocks critical
clk: qcom: dispcc-qcm2290: Remove inexistent DSI1PHY clk
clk: qcom: add the GPUCC driver for sa8775p
dt-bindings: clock: qcom: describe the GPUCC clock for SA8775P
clk: qcom: gcc-sm8350: fix PCIe PIPE clocks handling
clk: qcom: lpassaudiocc-sc7280: Add required gdsc power domain clks in lpass_cc_sc7280_desc
clk: qcom: lpasscc-sc7280: Skip qdsp6ss clock registration
dt-bindings: clock: qcom,sc7280-lpasscc: Add qcom,adsp-pil-mode property
clk: starfive: Avoid casting iomem pointers
clk: microchip: fix potential UAF in auxdev release callback
clk: qcom: rpm: Use managed `of_clk_add_hw_provider()`
clk: mediatek: fhctl: Mark local variables static
clk: sifive: make SiFive clk drivers depend on ARCH_ symbols
clk: uniphier: Use managed `of_clk_add_hw_provider()`
clk: si5351: Use managed `of_clk_add_hw_provider()`
clk: si570: Use managed `of_clk_add_hw_provider()`
clk: si514: Use managed `of_clk_add_hw_provider()`
clk: lmk04832: Use managed `of_clk_add_hw_provider()`
...
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- Shrink size of clk_fractional_divider a little
- Convert various clk drivers to devm_of_clk_add_hw_provider()
* clk-starfive:
clk: starfive: Delete the redundant dev_set_drvdata() in JH7110 clock drivers
clk: starfive: Avoid casting iomem pointers
MAINTAINERS: generalise StarFive clk/reset entries
reset: starfive: Add StarFive JH7110 reset driver
clk: starfive: Add StarFive JH7110 always-on clock driver
clk: starfive: Add StarFive JH7110 system clock driver
reset: starfive: jh71x0: Use 32bit I/O on 32bit registers
reset: starfive: Rename "jh7100" to "jh71x0" for the common code
reset: starfive: Extract the common JH71X0 reset code
reset: starfive: Factor out common JH71X0 reset code
reset: Create subdirectory for StarFive drivers
reset: starfive: Replace SOC_STARFIVE with ARCH_STARFIVE
clk: starfive: Rename "jh7100" to "jh71x0" for the common code
clk: starfive: Rename clk-starfive-jh7100.h to clk-starfive-jh71x0.h
clk: starfive: Factor out common JH7100 and JH7110 code
clk: starfive: Replace SOC_STARFIVE with ARCH_STARFIVE
dt-bindings: clock: Add StarFive JH7110 always-on clock and reset generator
dt-bindings: clock: Add StarFive JH7110 system clock and reset generator
* clk-fractional:
clk: Remove mmask and nmask fields in struct clk_fractional_divider
clk: rockchip: Remove values for mmask and nmask in struct clk_fractional_divider
clk: imx: Remove values for mmask and nmask in struct clk_fractional_divider
clk: Compute masks for fractional_divider clk when needed.
* clk-devmof:
clk: uniphier: Use managed `of_clk_add_hw_provider()`
clk: si5351: Use managed `of_clk_add_hw_provider()`
clk: si570: Use managed `of_clk_add_hw_provider()`
clk: si514: Use managed `of_clk_add_hw_provider()`
clk: lmk04832: Use managed `of_clk_add_hw_provider()`
clk: hsdk-pll: Use managed `of_clk_add_hw_provider()`
clk: cdce706: Use managed `of_clk_add_hw_provider()`
clk: axs10x: Use managed `of_clk_add_hw_provider()`
clk: axm5516: Use managed `of_clk_add_hw_provider()`
clk: axi-clkgen: Use managed `of_clk_add_hw_provider()`
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Update the MAINTAINERS entry for StarFive's clock and reset drivers to
account for the addition of JH7110 support and Hal's role in that.
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
[conor: split this out from the binding patch, since it touches more
than the binding; resort the entries per Hal's request]
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
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'clk-socfpga' into clk-next
- Frequency Hopping (FHCTL) on MediaTek MT6795, MT8173, MT8192 and
MT8195 SoCs
- Converted most Mediatek clock drivers to struct platform_driver
- MediaTek clock drivers can be built as modules
- Mediatek MT8188 SoC clk drivers
- Clock driver for Sunplus SP7021 SoC
- Reimplement Loongson-1 clk driver with DT support
- Clk driver support for Loongson-2 SoCs
- Migrate socfpga clk driver to of_clk_add_hw_provider()
* clk-mediatek: (84 commits)
clk: mediatek: fhctl: Mark local variables static
clk: mediatek: Use right match table, include mod_devicetable
clk: mediatek: Add MT8188 adsp clock support
clk: mediatek: Add MT8188 imp i2c wrapper clock support
clk: mediatek: Add MT8188 wpesys clock support
clk: mediatek: Add MT8188 vppsys1 clock support
clk: mediatek: Add MT8188 vppsys0 clock support
clk: mediatek: Add MT8188 vencsys clock support
clk: mediatek: Add MT8188 vdosys1 clock support
clk: mediatek: Add MT8188 vdosys0 clock support
clk: mediatek: Add MT8188 vdecsys clock support
clk: mediatek: Add MT8188 mfgcfg clock support
clk: mediatek: Add MT8188 ipesys clock support
clk: mediatek: Add MT8188 imgsys clock support
clk: mediatek: Add MT8188 ccusys clock support
clk: mediatek: Add MT8188 camsys clock support
clk: mediatek: Add MT8188 infrastructure clock support
clk: mediatek: Add MT8188 peripheral clock support
clk: mediatek: Add MT8188 topckgen clock support
clk: mediatek: Add MT8188 apmixedsys clock support
...
* clk-sunplus:
clk: Add Sunplus SP7021 clock driver
* clk-loongson:
clk: clk-loongson2: add clock controller driver support
dt-bindings: clock: add loongson-2 boot clock index
MAINTAINERS: remove obsolete file entry in MIPS/LOONGSON1 ARCHITECTURE
MIPS: loongson32: Update the clock initialization
clk: loongson1: Re-implement the clock driver
clk: loongson1: Remove the outdated driver
dt-bindings: clock: Add Loongson-1 clock
* clk-socfpga:
clk: socfpga: arria10: use of_clk_add_hw_provider and improve error handling
clk: socfpga: use of_clk_add_hw_provider and improve error handling
clk: socfpga: arria10: use of_clk_add_hw_provider and improve error handling
clk: socfpga: use of_clk_add_hw_provider and improve error handling
clk: socfpga: arria10: use of_clk_add_hw_provider and improve error handling
clk: socfpga: use of_clk_add_hw_provider and improve error handling
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This driver provides support for clock controller on Loongson-2 SoC,
the Loongson-2 SoC uses a 100MHz clock as the PLL reference clock,
there are five independent PLLs inside, each of which PLL can
provide up to three sets of frequency dependent clock outputs.
Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn>
Link: https://lore.kernel.org/r/20230323025229.2971-2-zhuyinbo@loongson.cn
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Commit c46496119ed0 ("clk: loongson1: Remove the outdated driver") removes
all files matching the pattern drivers/*/*/*loongson1*, but misses to
adjust the file entry for MIPS/LOONGSON1 ARCHITECTURE in MAINTAINERS.
Hence, ./scripts/get_maintainer.pl --self-test=patterns complains about a
broken reference.
Remove this file entry in MIPS/LOONGSON1 ARCHITECTURE.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20230323121437.28239-1-lukas.bulwahn@gmail.com
Acked-by: Keguang Zhang <keguang.zhang@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Add clock driver for Sunplus SP7021 SoC.
Signed-off-by: Qin Jian <qinjian@cqplus1.com>
Link: https://lore.kernel.org/r/20221219015130.42621-1-qinjian@cqplus1.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Pull workqueue updates from Tejun Heo:
"Mostly changes from Petr to improve warning and error reporting.
Workqueue now reports more of the relevant failures with better
context which should help debugging"
* tag 'wq-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: Introduce show_freezable_workqueues
workqueue: Print backtraces from CPUs with hung CPU bound workqueues
workqueue: Warn when a rescuer could not be created
workqueue: Interrupted create_worker() is not a repeated event
workqueue: Warn when a new worker could not be created
workqueue: Fix hung time report of worker pools
workqueue: Simplify a pr_warn() call in wq_select_unbound_cpu()
MAINTAINERS: Add workqueue_internal.h to the WORKQUEUE entry
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This file doesn't have a maintainer. It should belong to the WORKQUEUE
entry part. Add it to the WORKQUEUE entry.
Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Reviewed-by: Lai Jiangshan <jiangshanlai@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu updates from Greg Ungerer:
"A couple of minor changes.
One to remove the long dead uclinux.org web address and email list
from the MAINTAINERS entry for UCLINUX.
The other to remove dead config options in the m68knommu Kconfig"
* tag 'm68knommu-for-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68k: Kconfig.machine: remove obsolete configs ROMBASE and ROMSIZE
MAINTAINERS: drop uclinux.org
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uclinux.org is dead. Drop it from the MAINTAINERS file.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
- Add support for building the kernel using PC-relative addressing on
Power10.
- Allow HV KVM guests on Power10 to use prefixed instructions.
- Unify support for the P2020 CPU (85xx) into a single machine
description.
- Always build the 64-bit kernel with 128-bit long double.
- Drop support for several obsolete 2000's era development boards as
identified by Paul Gortmaker.
- A series fixing VFIO on Power since some generic changes.
- Various other small features and fixes.
Thanks to Alexey Kardashevskiy, Andrew Donnellan, Benjamin Gray, Bo Liu,
Christophe Leroy, Dan Carpenter, David Binderman, Ira Weiny, Joel
Stanley, Kajol Jain, Kautuk Consul, Liang He, Luis Chamberlain, Masahiro
Yamada, Michael Neuling, Nathan Chancellor, Nathan Lynch, Nicholas
Miehlbradt, Nicholas Piggin, Nick Desaulniers, Nysal Jan K.A, Pali
Rohár, Paul Gortmaker, Paul Mackerras, Petr Vaněk, Randy Dunlap, Rob
Herring, Sachin Sant, Sean Christopherson, Segher Boessenkool, and
Timothy Pearson.
* tag 'powerpc-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (156 commits)
powerpc/64s: Disable pcrel code model on Clang
powerpc: Fix merge conflict between pcrel and copy_thread changes
powerpc/configs/powernv: Add IGB=y
powerpc/configs/64s: Drop JFS Filesystem
powerpc/configs/64s: Use EXT4 to mount EXT2 filesystems
powerpc/configs: Make pseries_defconfig an alias for ppc64le_guest
powerpc/configs: Make pseries_le an alias for ppc64le_guest
powerpc/configs: Incorporate generic kvm_guest.config into guest configs
powerpc/configs: Add IBMVETH=y and IBMVNIC=y to guest configs
powerpc/configs/64s: Enable Device Mapper options
powerpc/configs/64s: Enable PSTORE
powerpc/configs/64s: Enable VLAN support
powerpc/configs/64s: Enable BLK_DEV_NVME
powerpc/configs/64s: Drop REISERFS
powerpc/configs/64s: Use SHA512 for module signatures
powerpc/configs/64s: Enable IO_STRICT_DEVMEM
powerpc/configs/64s: Enable SCHEDSTATS
powerpc/configs/64s: Enable DEBUG_VM & other options
powerpc/configs/64s: Enable EMULATED_STATS
powerpc/configs/64s: Enable KUNIT and most tests
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Signed-off-by: Timothy Pearson <tpearson@raptorengineering.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/256219069.16998525.1678123888896.JavaMail.zimbra@raptorengineeringinc.com
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool updates from Ingo Molnar:
- Mark arch_cpu_idle_dead() __noreturn, make all architectures &
drivers that did this inconsistently follow this new, common
convention, and fix all the fallout that objtool can now detect
statically
- Fix/improve the ORC unwinder becoming unreliable due to
UNWIND_HINT_EMPTY ambiguity, split it into UNWIND_HINT_END_OF_STACK
and UNWIND_HINT_UNDEFINED to resolve it
- Fix noinstr violations in the KCSAN code and the lkdtm/stackleak code
- Generate ORC data for __pfx code
- Add more __noreturn annotations to various kernel startup/shutdown
and panic functions
- Misc improvements & fixes
* tag 'objtool-core-2023-04-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits)
x86/hyperv: Mark hv_ghcb_terminate() as noreturn
scsi: message: fusion: Mark mpt_halt_firmware() __noreturn
x86/cpu: Mark {hlt,resume}_play_dead() __noreturn
btrfs: Mark btrfs_assertfail() __noreturn
objtool: Include weak functions in global_noreturns check
cpu: Mark nmi_panic_self_stop() __noreturn
cpu: Mark panic_smp_self_stop() __noreturn
arm64/cpu: Mark cpu_park_loop() and friends __noreturn
x86/head: Mark *_start_kernel() __noreturn
init: Mark start_kernel() __noreturn
init: Mark [arch_call_]rest_init() __noreturn
objtool: Generate ORC data for __pfx code
x86/linkage: Fix padding for typed functions
objtool: Separate prefix code from stack validation code
objtool: Remove superfluous dead_end_function() check
objtool: Add symbol iteration helpers
objtool: Add WARN_INSN()
scripts/objdump-func: Support multiple functions
context_tracking: Fix KCSAN noinstr violation
objtool: Add stackleak instrumentation to uaccess safe list
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Reduce the amount of header sync churn by splitting the shared objtool.h
types into a new file.
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/dec622720851210ceafa12d4f4c5f9e73c832152.1677683419.git.jpoimboe@kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
"Mainly singleton patches all over the place.
Series of note are:
- updates to scripts/gdb from Glenn Washburn
- kexec cleanups from Bjorn Helgaas"
* tag 'mm-nonmm-stable-2023-04-27-16-01' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (50 commits)
mailmap: add entries for Paul Mackerras
libgcc: add forward declarations for generic library routines
mailmap: add entry for Oleksandr
ocfs2: reduce ioctl stack usage
fs/proc: add Kthread flag to /proc/$pid/status
ia64: fix an addr to taddr in huge_pte_offset()
checkpatch: introduce proper bindings license check
epoll: rename global epmutex
scripts/gdb: add GDB convenience functions $lx_dentry_name() and $lx_i_dentry()
scripts/gdb: create linux/vfs.py for VFS related GDB helpers
uapi/linux/const.h: prefer ISO-friendly __typeof__
delayacct: track delays from IRQ/SOFTIRQ
scripts/gdb: timerlist: convert int chunks to str
scripts/gdb: print interrupts
scripts/gdb: raise error with reduced debugging information
scripts/gdb: add a Radix Tree Parser
lib/rbtree: use '+' instead of '|' for setting color.
proc/stat: remove arch_idle_time()
checkpatch: check for misuse of the link tags
checkpatch: allow Closes tags with links
...
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By now, many developers are working on Linux for embedded systems. There
is no need to point out single developers. The linux-embedded mailing
list has only little traffic, and most of it is just spam.
Remove this obsolete section.
Link: https://lkml.kernel.org/r/20230308150625.28732-1-lukas.bulwahn@gmail.com
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Cc: Olivia Mackall <olivia@selenic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of
switching from a user process to a kernel thread.
- More folio conversions from Kefeng Wang, Zhang Peng and Pankaj
Raghav.
- zsmalloc performance improvements from Sergey Senozhatsky.
- Yue Zhao has found and fixed some data race issues around the
alteration of memcg userspace tunables.
- VFS rationalizations from Christoph Hellwig:
- removal of most of the callers of write_one_page()
- make __filemap_get_folio()'s return value more useful
- Luis Chamberlain has changed tmpfs so it no longer requires swap
backing. Use `mount -o noswap'.
- Qi Zheng has made the slab shrinkers operate locklessly, providing
some scalability benefits.
- Keith Busch has improved dmapool's performance, making part of its
operations O(1) rather than O(n).
- Peter Xu adds the UFFD_FEATURE_WP_UNPOPULATED feature to userfaultd,
permitting userspace to wr-protect anon memory unpopulated ptes.
- Kirill Shutemov has changed MAX_ORDER's meaning to be inclusive
rather than exclusive, and has fixed a bunch of errors which were
caused by its unintuitive meaning.
- Axel Rasmussen give userfaultfd the UFFDIO_CONTINUE_MODE_WP feature,
which causes minor faults to install a write-protected pte.
- Vlastimil Babka has done some maintenance work on vma_merge():
cleanups to the kernel code and improvements to our userspace test
harness.
- Cleanups to do_fault_around() by Lorenzo Stoakes.
- Mike Rapoport has moved a lot of initialization code out of various
mm/ files and into mm/mm_init.c.
- Lorenzo Stoakes removd vmf_insert_mixed_prot(), which was added for
DRM, but DRM doesn't use it any more.
- Lorenzo has also coverted read_kcore() and vread() to use iterators
and has thereby removed the use of bounce buffers in some cases.
- Lorenzo has also contributed further cleanups of vma_merge().
- Chaitanya Prakash provides some fixes to the mmap selftesting code.
- Matthew Wilcox changes xfs and afs so they no longer take sleeping
locks in ->map_page(), a step towards RCUification of pagefaults.
- Suren Baghdasaryan has improved mmap_lock scalability by switching to
per-VMA locking.
- Frederic Weisbecker has reworked the percpu cache draining so that it
no longer causes latency glitches on cpu isolated workloads.
- Mike Rapoport cleans up and corrects the ARCH_FORCE_MAX_ORDER Kconfig
logic.
- Liu Shixin has changed zswap's initialization so we no longer waste a
chunk of memory if zswap is not being used.
- Yosry Ahmed has improved the performance of memcg statistics
flushing.
- David Stevens has fixed several issues involving khugepaged,
userfaultfd and shmem.
- Christoph Hellwig has provided some cleanup work to zram's IO-related
code paths.
- David Hildenbrand has fixed up some issues in the selftest code's
testing of our pte state changing.
- Pankaj Raghav has made page_endio() unneeded and has removed it.
- Peter Xu contributed some rationalizations of the userfaultfd
selftests.
- Yosry Ahmed has fixed an issue around memcg's page recalim
accounting.
- Chaitanya Prakash has fixed some arm-related issues in the
selftests/mm code.
- Longlong Xia has improved the way in which KSM handles hwpoisoned
pages.
- Peter Xu fixes a few issues with uffd-wp at fork() time.
- Stefan Roesch has changed KSM so that it may now be used on a
per-process and per-cgroup basis.
* tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (369 commits)
mm,unmap: avoid flushing TLB in batch if PTE is inaccessible
shmem: restrict noswap option to initial user namespace
mm/khugepaged: fix conflicting mods to collapse_file()
sparse: remove unnecessary 0 values from rc
mm: move 'mmap_min_addr' logic from callers into vm_unmapped_area()
hugetlb: pte_alloc_huge() to replace huge pte_alloc_map()
maple_tree: fix allocation in mas_sparse_area()
mm: do not increment pgfault stats when page fault handler retries
zsmalloc: allow only one active pool compaction context
selftests/mm: add new selftests for KSM
mm: add new KSM process and sysfs knobs
mm: add new api to enable ksm per process
mm: shrinkers: fix debugfs file permissions
mm: don't check VMA write permissions if the PTE/PMD indicates write permissions
migrate_pages_batch: fix statistics for longterm pin retry
userfaultfd: use helper function range_in_vma()
lib/show_mem.c: use for_each_populated_zone() simplify code
mm: correct arg in reclaim_pages()/reclaim_clean_pages_from_list()
fs/buffer: convert create_page_buffers to folio_create_buffers
fs/buffer: add folio_create_empty_buffers helper
...
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and add mm/mm_init.c to memblock entry in MAINTAINERS
Link: https://lkml.kernel.org/r/20230321170513.2401534-15-rppt@kernel.org
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Doug Berger <opendmb@gmail.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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I have recently been involved in both reviewing and submitting patches to
the vmalloc code in mm and would be willing and happy to help out with
review going forward if it would be helpful!
Link: https://lkml.kernel.org/r/55f663af6100c84a71a0065ac0ed22463aa340de.1679421959.git.lstoakes@gmail.com
Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com>
Acked-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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This adds the following tracepoints to ksm:
- start / stop scan
- ksm enter / exit
- merge a page
- merge a page with ksm
- remove a page
- remove a rmap item
This patch has been split off from the RFC patch series "mm:
process/cgroup ksm support".
Link: https://lkml.kernel.org/r/20230210214645.2720847-1-shr@devkernel.io
Signed-off-by: Stefan Roesch <shr@devkernel.io>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyperv updates from Wei Liu:
- PCI passthrough for Hyper-V confidential VMs (Michael Kelley)
- Hyper-V VTL mode support (Saurabh Sengar)
- Move panic report initialization code earlier (Long Li)
- Various improvements and bug fixes (Dexuan Cui and Michael Kelley)
* tag 'hyperv-next-signed-20230424' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: (22 commits)
PCI: hv: Replace retarget_msi_interrupt_params with hyperv_pcpu_input_arg
Drivers: hv: move panic report code from vmbus to hv early init code
x86/hyperv: VTL support for Hyper-V
Drivers: hv: Kconfig: Add HYPERV_VTL_MODE
x86/hyperv: Make hv_get_nmi_reason public
x86/hyperv: Add VTL specific structs and hypercalls
x86/init: Make get/set_rtc_noop() public
x86/hyperv: Exclude lazy TLB mode CPUs from enlightened TLB flushes
x86/hyperv: Add callback filter to cpumask_to_vpset()
Drivers: hv: vmbus: Remove the per-CPU post_msg_page
clocksource: hyper-v: make sure Invariant-TSC is used if it is available
PCI: hv: Enable PCI pass-thru devices in Confidential VMs
Drivers: hv: Don't remap addresses that are above shared_gpa_boundary
hv_netvsc: Remove second mapping of send and recv buffers
Drivers: hv: vmbus: Remove second way of mapping ring buffers
Drivers: hv: vmbus: Remove second mapping of VMBus monitor pages
swiotlb: Remove bounce buffer remapping for Hyper-V
Driver: VMBus: Add Devicetree support
dt-bindings: bus: Add Hyper-V VMBus
Drivers: hv: vmbus: Convert acpi_device to more generic platform_device
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Add dt-bindings for Hyper-V VMBus.
Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1679298460-11855-5-git-send-email-ssengar@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
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Pull virtio updates from Michael Tsirkin:
"virtio,vhost,vdpa: features, fixes, and cleanups:
- reduction in interrupt rate in virtio
- perf improvement for VDUSE
- scalability for vhost-scsi
- non power of 2 ring support for packed rings
- better management for mlx5 vdpa
- suspend for snet
- VIRTIO_F_NOTIFICATION_DATA
- shared backend with vdpa-sim-blk
- user VA support in vdpa-sim
- better struct packing for virtio
and fixes, cleanups all over the place"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (52 commits)
vhost_vdpa: fix unmap process in no-batch mode
MAINTAINERS: make me a reviewer of VIRTIO CORE AND NET DRIVERS
tools/virtio: fix build caused by virtio_ring changes
virtio_ring: add a struct device forward declaration
vdpa_sim_blk: support shared backend
vdpa_sim: move buffer allocation in the devices
vdpa/snet: use likely/unlikely macros in hot functions
vdpa/snet: implement kick_vq_with_data callback
virtio-vdpa: add VIRTIO_F_NOTIFICATION_DATA feature support
virtio: add VIRTIO_F_NOTIFICATION_DATA feature support
vdpa/snet: support the suspend vDPA callback
vdpa/snet: support getting and setting VQ state
MAINTAINERS: add vringh.h to Virtio Core and Net Drivers
vringh: address kdoc warnings
vdpa: address kdoc warnings
virtio_ring: don't update event idx on get_buf
vdpa_sim: add support for user VA
vdpa_sim: replace the spinlock with a mutex to protect the state
vdpa_sim: use kthread worker
vdpa_sim: make devices agnostic for work management
...
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First of all, I personally love open source, linux and virtio. I have
also participated in community work such as virtio for a long time.
I think I am familiar enough with virtio/virtio-net and is adequate as a
reviewer.
Every time there is some patch/bug, I wish I can get pinged
and I will feedback on that.
For me personally, being a reviewer is an honor and a responsibility,
and it also makes it easier for me to participate in virtio-related
work. And I will spend more time reviewing virtio patch. Better advance
virtio development
I had some contributions to virtio/virtio-net and some support for it.
* per-queue reset
* virtio-net xdp
* some bug fix
* ......
I make a humble request to grant the reviewer role for the virtio core
and net drivers.
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Message-Id: <20230413071610.43659-1-xuanzhuo@linux.alibaba.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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vringh.h doesn't seem to belong to any section in MAINTAINERS.
Add it to Virtio Core and Net Drivers, which seems to be the most
appropriate section to me.
Signed-off-by: Simon Horman <horms@kernel.org>
Message-Id: <20230331-vhost-fixes-v1-3-1f046e735b9e@kernel.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
Pull module updates from Luis Chamberlain:
"The summary of the changes for this pull requests is:
- Song Liu's new struct module_memory replacement
- Nick Alcock's MODULE_LICENSE() removal for non-modules
- My cleanups and enhancements to reduce the areas where we vmalloc
module memory for duplicates, and the respective debug code which
proves the remaining vmalloc pressure comes from userspace.
Most of the changes have been in linux-next for quite some time except
the minor fixes I made to check if a module was already loaded prior
to allocating the final module memory with vmalloc and the respective
debug code it introduces to help clarify the issue. Although the
functional change is small it is rather safe as it can only *help*
reduce vmalloc space for duplicates and is confirmed to fix a bootup
issue with over 400 CPUs with KASAN enabled. I don't expect stable
kernels to pick up that fix as the cleanups would have also had to
have been picked up. Folks on larger CPU systems with modules will
want to just upgrade if vmalloc space has been an issue on bootup.
Given the size of this request, here's some more elaborate details:
The functional change change in this pull request is the very first
patch from Song Liu which replaces the 'struct module_layout' with a
new 'struct module_memory'. The old data structure tried to put
together all types of supported module memory types in one data
structure, the new one abstracts the differences in memory types in a
module to allow each one to provide their own set of details. This
paves the way in the future so we can deal with them in a cleaner way.
If you look at changes they also provide a nice cleanup of how we
handle these different memory areas in a module. This change has been
in linux-next since before the merge window opened for v6.3 so to
provide more than a full kernel cycle of testing. It's a good thing as
quite a bit of fixes have been found for it.
Jason Baron then made dynamic debug a first class citizen module user
by using module notifier callbacks to allocate / remove module
specific dynamic debug information.
Nick Alcock has done quite a bit of work cross-tree to remove module
license tags from things which cannot possibly be module at my request
so to:
a) help him with his longer term tooling goals which require a
deterministic evaluation if a piece a symbol code could ever be
part of a module or not. But quite recently it is has been made
clear that tooling is not the only one that would benefit.
Disambiguating symbols also helps efforts such as live patching,
kprobes and BPF, but for other reasons and R&D on this area is
active with no clear solution in sight.
b) help us inch closer to the now generally accepted long term goal
of automating all the MODULE_LICENSE() tags from SPDX license tags
In so far as a) is concerned, although module license tags are a no-op
for non-modules, tools which would want create a mapping of possible
modules can only rely on the module license tag after the commit
8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf").
Nick has been working on this *for years* and AFAICT I was the only
one to suggest two alternatives to this approach for tooling. The
complexity in one of my suggested approaches lies in that we'd need a
possible-obj-m and a could-be-module which would check if the object
being built is part of any kconfig build which could ever lead to it
being part of a module, and if so define a new define
-DPOSSIBLE_MODULE [0].
A more obvious yet theoretical approach I've suggested would be to
have a tristate in kconfig imply the same new -DPOSSIBLE_MODULE as
well but that means getting kconfig symbol names mapping to modules
always, and I don't think that's the case today. I am not aware of
Nick or anyone exploring either of these options. Quite recently Josh
Poimboeuf has pointed out that live patching, kprobes and BPF would
benefit from resolving some part of the disambiguation as well but for
other reasons. The function granularity KASLR (fgkaslr) patches were
mentioned but Joe Lawrence has clarified this effort has been dropped
with no clear solution in sight [1].
In the meantime removing module license tags from code which could
never be modules is welcomed for both objectives mentioned above. Some
developers have also welcomed these changes as it has helped clarify
when a module was never possible and they forgot to clean this up, and
so you'll see quite a bit of Nick's patches in other pull requests for
this merge window. I just picked up the stragglers after rc3. LWN has
good coverage on the motivation behind this work [2] and the typical
cross-tree issues he ran into along the way. The only concrete blocker
issue he ran into was that we should not remove the MODULE_LICENSE()
tags from files which have no SPDX tags yet, even if they can never be
modules. Nick ended up giving up on his efforts due to having to do
this vetting and backlash he ran into from folks who really did *not
understand* the core of the issue nor were providing any alternative /
guidance. I've gone through his changes and dropped the patches which
dropped the module license tags where an SPDX license tag was missing,
it only consisted of 11 drivers. To see if a pull request deals with a
file which lacks SPDX tags you can just use:
./scripts/spdxcheck.py -f \
$(git diff --name-only commid-id | xargs echo)
You'll see a core module file in this pull request for the above, but
that's not related to his changes. WE just need to add the SPDX
license tag for the kernel/module/kmod.c file in the future but it
demonstrates the effectiveness of the script.
Most of Nick's changes were spread out through different trees, and I
just picked up the slack after rc3 for the last kernel was out. Those
changes have been in linux-next for over two weeks.
The cleanups, debug code I added and final fix I added for modules
were motivated by David Hildenbrand's report of boot failing on a
systems with over 400 CPUs when KASAN was enabled due to running out
of virtual memory space. Although the functional change only consists
of 3 lines in the patch "module: avoid allocation if module is already
present and ready", proving that this was the best we can do on the
modules side took quite a bit of effort and new debug code.
The initial cleanups I did on the modules side of things has been in
linux-next since around rc3 of the last kernel, the actual final fix
for and debug code however have only been in linux-next for about a
week or so but I think it is worth getting that code in for this merge
window as it does help fix / prove / evaluate the issues reported with
larger number of CPUs. Userspace is not yet fixed as it is taking a
bit of time for folks to understand the crux of the issue and find a
proper resolution. Worst come to worst, I have a kludge-of-concept [3]
of how to make kernel_read*() calls for modules unique / converge
them, but I'm currently inclined to just see if userspace can fix this
instead"
Link: https://lore.kernel.org/all/Y/kXDqW+7d71C4wz@bombadil.infradead.org/ [0]
Link: https://lkml.kernel.org/r/025f2151-ce7c-5630-9b90-98742c97ac65@redhat.com [1]
Link: https://lwn.net/Articles/927569/ [2]
Link: https://lkml.kernel.org/r/20230414052840.1994456-3-mcgrof@kernel.org [3]
* tag 'modules-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux: (121 commits)
module: add debugging auto-load duplicate module support
module: stats: fix invalid_mod_bytes typo
module: remove use of uninitialized variable len
module: fix building stats for 32-bit targets
module: stats: include uapi/linux/module.h
module: avoid allocation if module is already present and ready
module: add debug stats to help identify memory pressure
module: extract patient module check into helper
modules/kmod: replace implementation with a semaphore
Change DEFINE_SEMAPHORE() to take a number argument
module: fix kmemleak annotations for non init ELF sections
module: Ignore L0 and rename is_arm_mapping_symbol()
module: Move is_arm_mapping_symbol() to module_symbol.h
module: Sync code of is_arm_mapping_symbol()
scripts/gdb: use mem instead of core_layout to get the module address
interconnect: remove module-related code
interconnect: remove MODULE_LICENSE in non-modules
zswap: remove MODULE_LICENSE in non-modules
zpool: remove MODULE_LICENSE in non-modules
x86/mm/dump_pagetables: remove MODULE_LICENSE in non-modules
...
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The kernel/kmod.c is already only built if we enabled modules, so
just stuff it under kernel/module/kmod.c and unify the MAINTAINERS
file for it.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc drivers updates from Greg KH:
"Here is the "big" set of char/misc and other driver subsystems for
6.4-rc1.
It's pretty big, but due to the removal of pcmcia drivers, almost
breaks even for number of lines added vs. removed, a nice change.
Included in here are:
- removal of unused PCMCIA drivers (finally!)
- Interconnect driver updates and additions
- Lots of IIO driver updates and additions
- MHI driver updates
- Coresight driver updates
- NVMEM driver updates, which required some OF updates
- W1 driver updates and a new maintainer to manage the subsystem
- FPGA driver updates
- New driver subsystem, CDX, for AMD systems
- lots of other small driver updates and additions
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (196 commits)
mcb-lpc: Reallocate memory region to avoid memory overlapping
mcb-pci: Reallocate memory region to avoid memory overlapping
mcb: Return actual parsed size when reading chameleon table
kernel/configs: Drop Android config fragments
virt: acrn: Replace obsolete memalign() with posix_memalign()
spmi: Add a check for remove callback when removing a SPMI driver
spmi: fix W=1 kernel-doc warnings
spmi: mtk-pmif: Drop of_match_ptr for ID table
spmi: pmic-arb: Convert to platform remove callback returning void
spmi: mtk-pmif: Convert to platform remove callback returning void
spmi: hisi-spmi-controller: Convert to platform remove callback returning void
w1: gpio: remove unnecessary ENOMEM messages
w1: omap-hdq: remove unnecessary ENOMEM messages
w1: omap-hdq: add SPDX tag
w1: omap-hdq: allow compile testing
w1: matrox: remove unnecessary ENOMEM messages
w1: matrox: use inline over __inline__
w1: matrox: switch from asm to linux header
w1: ds2482: do not use assignment in if condition
w1: ds2482: drop unnecessary header
...
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In the old days where each device had a custom kernel, the
android config fragments were useful to provide the required
and reccomended options expected by userland.
However, these days devices are expected to use the GKI kernel,
so these config fragments no longer needed, and out of date, so
they seem to only cause confusion.
So lets drop them. If folks are curious what configs are
expected by the Android environment, check out the gki_defconfig
file in the latest android common kernel tree.
Cc: Rob Herring <robh@kernel.org>
Cc: Amit Pundir <amit.pundir@linaro.org>
Cc: <kernel-team@android.com>
Signed-off-by: John Stultz <jstultz@google.com>
Link: https://lore.kernel.org/r/20230411180409.1706067-1-jstultz@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Evgeniy wrote that he no longer takes patches for 1-Wire/W1 subsystem,
so add Krzysztof Kozlowski to help reviewing and handling these.
Link: https://lore.kernel.org/all/bdcf41d5-cd61-1e95-0b21-b8fe401644bd@ioremap.net/
Cc: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230415093856.41948-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux into char-misc-next
Suzuki writes:
coresight: Updates for v6.4
This is a relatively smaller update for CoreSight tracing subsystem targeting
v6.4, with the following changes:
- Removing Mathieu Poirier as MAINTAINER for the subsystem, with updates to
CREDITS for his contributions.
- Fix CoreSight ETM PMU to set the module field
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
* tag 'coresight-next-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux:
coresight: etm_pmu: Set the module field
MAINTAINERS: Remove Mathieu Poirier as coresight maintainer
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Mathieu Poirier is no longer involved in maintainig the CoreSight self-hosted
tracing subsystem.
Mathieu, Thank you very much creating and maintaing the subsystem all these
years !
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20230404111117.569795-1-suzuki.poulose@arm.com
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https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next
Jonathan writes:
1st set of IIO new device support, features and cleanups for the 6.4 cycle.
New device support
* bosch,bmp280
- Add support for BMP580 - includes significant refactoring and general
driver cleanup + support for non-volatile memory for trimming and config
parameters.
* rohm BU27034
- New driver for this 3 channel ambient light sensor.
- New support library for devices where both integration time and
amplifier gain are configurable. In these cases a scale change
may require changing bother underlying values. This library module
provides code to help with this.
* st,accel
- Add support for IIS328DQ (ID only as compatible wtih LIS331DL)
* st,lsm6dsx
- Add support for ASM330LHB automotive MEMS sensor.
* ti,ads1100, ads1000
- New driver for these 16 bit ADCs.
* ti,tmp117
- Add support for older tmp116 device. Includes some general driver cleanup.
Staging driver drops
* adi,ade7854
- Driver was a very long way from compliant with IIO infrastructure and ABI.
If anyone wants a non staging version of this driver they are better off
starting from scratch. Hence drop it and the associated meter.h header.
Features
* adi,ad7441r
- Add DT binding to set sink current for digital input.
* semtech,sx9324,9360
- Support older register mapping from firmware designed for windows.
Core improvements.
* Move iio_trigger_poll() docs to next to the implementation and add a note
on expected caller context.
* Rename iio_trigger_poll_chained() to iio_trigger_poll_nested() so
as to use more standard / common terminology.
* Improve main ABI docs references to offset and scale for raw values by
making them consistent and clear.
Cleanups and minor fixes:
* adi,ad5592r
- Add GPIO names - useful for debug.
* adi,ad7441r
- Fix current input, loop powered mode configuration setup.
* adi,adis16475
- Fix wrong commented value for minimum advised lower rate.
* adi,admv1013
- Use devm_clk_get_enabled() to reduce boilerplate.
* adi,ads1210
- Fix wrong bits for writing config register (late fix and has
been broken a long time so not rushed upstream)
* amlogic,meson-saradc
- Improve cleanup in error handling if BL30 handshake fails.
* apex-embedded,stx104
- Migrate to regmap and use regmap_read_poll_timeout() to neatly handle
retries.
- Add local mutex to close various races.
- Use define U16_MAX rather than value for limit.
- Improve code readability with minor reorganization.
* atmel,ad91-sama5d2
- Drop trivial dead code.
* kionix,kx022a
- Drop unused structure element.
* linear,ltc2983
- Reorganize bindings doc to enable unevaluatedProperties to be set
in one place for all child nodes.
- Make binding for adi,custom-thermocouple accept signed values.
* maxim,max44000
- Add OF Device matching (of_match_table was not correctly set).
* maxim,max5522
- Missing static
* measurement-computing,cio-dac
- Fix wrong part name in comments.
- Migrate to regmap.
- Improve includes by replacing bitops.h with more direct bits.h
* qcom,pm8xxx-xoadc
- Remove a check that can never fail.
* renesas,rcar-gyroadc
- DT binding documentation improvements.
- Tidy up an unused warning with __maybe_unused.
* semtech,sx_common
- Drop docs for a structure element that doesn't exist.
* semtech,sx9500
- Drop ACPI_PTR() and of_match_ptr() protections that just complicate
the code / block some firmware registration types that would otherwise
work.
* sensiron,sps30
- Comment formatting tidy up.
* st,sensors
- Drop duplicate text in DT binding.
* st,stm32-adc
- Add some missing static markings.
* ti,ads1100
- Use correct return code in dev_err_probe() call.
* x-powers,axp20x_adc - precursor series to simplify addition of AXP192.
- General code cleanup / minor refactoring for better readabilty of code.
- Switch from boolean value to mask for adc_en2 field to avoid hard coding
a mask that will be different in AXP192
* tag 'iio-for-6.4a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (63 commits)
MAINTAINERS: Add ROHM BU27034
iio: light: ROHM BU27034 Ambient Light Sensor
dt-bindings: iio: light: Support ROHM BU27034
MAINTAINERS: Add IIO gain-time-scale helpers
iio: light: Add gain-time-scale helpers
doc: Make sysfs-bus-iio doc more exact
iio: dac: set variable max5522_channels storage-class-specifier to static
dt-bindings: iio: temperature: ltc2983: Make 'adi,custom-thermocouple' signed
dt-bindings: iio: temperature: ltc2983: Fix child node unevaluated properties
iio: addac: stx104: Use regmap_read_poll_timeout() for conversion poll
iio: addac: stx104: Migrate to the regmap API
iio: addac: stx104: Improve indentation in stx104_write_raw()
iio: addac: stx104: Use define rather than hardcoded limit for write val
iio: addac: stx104: Fix race condition when converting analog-to-digital
iio: addac: stx104: Fix race condition for stx104_write_raw()
dt-bindings: iio: st-sensors: Fix repeated text
staging: iio: resolver: ads1210: fix config mode
iio: adc: ti-ads1100: fix error code in probe()
iio: accel: add support for IIS328DQ variant
dt-bindings: iio: st-sensors: Add IIS328DQ accelerometer
...
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Add myself as a maintainer for ROHM BU27034 ALS driver.
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Link: https://lore.kernel.org/r/eac4b5f7fc8adcaac59ffa73e46cd7bb9c90edfa.1680263956.git.mazziesaccount@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add myself as a maintainer for IIO light sensor helpers (helpers for
maintaining the scale while adjusting intergration time or gain) and
related Kunit tests.
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Link: https://lore.kernel.org/r/d46414eabe8dd4cd3edb15f859f3b93cd406d9aa.1680263956.git.mazziesaccount@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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We need it here to apply other char/misc driver changes to.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Following the introduction of the bindings for this NVMEM parser and the
layout driver, add myself as maintainer.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230404172148.82422-25-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add myself as a maintainer for the new sl28vpd nvmem layout driver.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230404172148.82422-23-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add CDX bus controller device tree bindings for versal-net
devices.
Signed-off-by: Nipun Gupta <nipun.gupta@amd.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com>
Link: https://lore.kernel.org/r/20230313132636.31850-4-nipun.gupta@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Introduce AMD CDX bus, which provides a mechanism for scanning
and probing CDX devices. These devices are memory mapped on
system bus for Application Processors(APUs).
CDX devices can be changed dynamically in the Fabric and CDX
bus interacts with CDX controller to rescan the bus and
rediscover the devices.
Signed-off-by: Nipun Gupta <nipun.gupta@amd.com>
Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com>
Link: https://lore.kernel.org/r/20230313132636.31850-2-nipun.gupta@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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