Rather than writing CP_PREEMPT_ENABLE_GLOBAL twice, follow the vendor
kernel and set CP_PREEMPT_ENABLE_LOCAL register instead. a5xx_submit()
will override it during submission, but let's get the sequence correct.
Fixes: b1fc2839d2 ("drm/msm: Implement preemption for A5XX targets")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/522638/
Link: https://lore.kernel.org/r/20230214020956.164473-2-dmitry.baryshkov@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
If, for whatever reason, we're trying process adreno_runtime_resume()
at the same time that a6xx_destroy() is running then things can go
boom. Specifically adreno_runtime_resume() will eventually call
a6xx_pm_resume() and that may try to resume the gmu.
Let's grab the GMU lock as we're destroying the GMU. That will solve
the race because a6xx_pm_resume() grabs the same lock. That makes the
access of `gmu->initialized` in a6xx_gmu_resume() safe.
We'll also return an error code in a6xx_gmu_resume() if we see that
`gmu->initialized` was false. If this happens we'll bail out of the
rest of a6xx_pm_resume(), which is good because the rest of that
function is also not good to do if we're racing with a6xx_destroy().
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/521232/
Link: https://lore.kernel.org/r/20230202104822.1.I0e49003bf4dd1dead9be4a29dbee41f3b1236e48@changeid
Signed-off-by: Rob Clark <robdclark@chromium.org>
- Add PINCTRL_PINFUNCTION() macro and use it in several
drivers.
New drivers:
- New driver for the StarFive JH7110 SoC "sys" and "aon"
(always-on) pin controllers. (RISC-V.)
- New subdriver for the Qualcomm QDU1000/QRU1000 SoC pin
controller.
- New subdrivers for the Qualcomm SM8550 SoC and LPASS
pin controllers.
- New subdriver for the Qualcomm SA8775P SoC pin controller.
- New subdriver for the Qualcomm IPQ5332 SoC pin controller.
- New (trivial) support for Qualcomm PM8550 and PMR735D PMIC
pin control.
- New subdriver for the Mediatek MT7981 SoC pin controller.
Improvements:
- Several cleanups and refactorings to the Intel drivers.
- Add 4KOhm bias support to the Intel driver.
- Use the NOIRQ_SYSTEM_SLEEP_PM_OPS for the AT91 driver.
- Support general purpose clocks in the Qualcomm MSM8226 SoC.
- Several conversions to use the new I2C .probe_new() call.
- Massive clean-up of the Qualcomm Device Tree YAML schemas.
- Add VIN[45] pins, groups and functions to the Renesas
r8a77950 SoC driver.
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Merge tag 'pinctrl-v6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"Nothing special, notably a lot of new Qualcomm hardware is supported,
a RISC-V reference SoC and then some cleanups both in code and device
tree bindings.
Core changes:
- Add PINCTRL_PINFUNCTION() macro and use it in several drivers
New drivers:
- New driver for the StarFive JH7110 SoC "sys" and "aon" (always-on)
pin controllers. (RISC-V.)
- New subdriver for the Qualcomm QDU1000/QRU1000 SoC pin controller
- New subdrivers for the Qualcomm SM8550 SoC and LPASS pin
controllers
- New subdriver for the Qualcomm SA8775P SoC pin controller
- New subdriver for the Qualcomm IPQ5332 SoC pin controller
- New (trivial) support for Qualcomm PM8550 and PMR735D PMIC pin
control
- New subdriver for the Mediatek MT7981 SoC pin controller
Improvements:
- Several cleanups and refactorings to the Intel drivers
- Add 4KOhm bias support to the Intel driver
- Use the NOIRQ_SYSTEM_SLEEP_PM_OPS for the AT91 driver
- Support general purpose clocks in the Qualcomm MSM8226 SoC
- Several conversions to use the new I2C .probe_new() call
- Massive clean-up of the Qualcomm Device Tree YAML schemas
- Add VIN[45] pins, groups and functions to the Renesas r8a77950 SoC
driver"
* tag 'pinctrl-v6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (118 commits)
pinctrl: qcom: Add support for i2c specific pull feature
pinctrl: starfive: Add StarFive JH7110 aon controller driver
pinctrl: starfive: Add StarFive JH7110 sys controller driver
dt-bindings: pinctrl: Add StarFive JH7110 aon pinctrl
dt-bindings: pinctrl: Add StarFive JH7110 sys pinctrl
pinctrl: add mt7981 pinctrl driver
dt-bindings: pinctrl: add bindings for MT7981 SoC
dt-bindings: pinctrl: rockchip,pinctrl: mark gpio sub nodes of pinctrl as deprecated
pinctrl: qcom: Introduce IPQ5332 TLMM driver
dt-bindings: pinctrl: qcom: add IPQ5332 pinctrl
dt-bindings: pinctrl: qcom: lpass-lpi: correct GPIO name pattern
pinctrl: qcom: pinctrl-sm8550-lpass-lpi: add SM8550 LPASS
dt-bindings: pinctrl: qcom,sm8550-lpass-lpi-pinctrl: add SM8550 LPASS
pinctrl: at91: use devm_kasprintf() to avoid potential leaks
dt-bindings: pinctrl: qcom: correct gpio-ranges in examples
dt-bindings: pinctrl: qcom,msm8994: correct number of GPIOs
dt-bindings: pinctrl: qcom,sdx55: correct GPIO name pattern
dt-bindings: pinctrl: qcom,msm8953: correct GPIO name pattern
dt-bindings: pinctrl: qcom,sm6375: correct GPIO name pattern and example
dt-bindings: pinctrl: qcom,msm8909: correct GPIO name pattern and example
...
The Asus Expertbook B2502FBA has IRQ 1 described as Active_Low
in its ACPI table. However, the kernel overrides this and sets it to
Edge_High, which prevents the internal keyboard from working properly.
Adding this laptop model to the override_table fixes the issue.
Signed-off-by: Vojtech Hejsek <hejsekvojtech@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Core GPIOLIB:
- drop several OF interfaces after moving a significant part of the code to
using software nodes
- remove more interfaces referring to the global GPIO numberspace that we're
getting rid of
- improvements in the gpio-regmap library
- add helper for GPIO device reference counting
- remove unused APIs
- minor tweaks like sorting headers alphabetically
Extended support in existing drivers:
- add support for Tegra 234 PMC to gpio-tegra186
Driver improvements:
- migrate the 104-dio/idi family of drivers to using the regmap-irq API
- migrate gpio-i8255 and gpio-mm to the GPIO regmap API
- clean-ups in gpio-pca953x
- remove duplicate assignments of of_gpio_n_cells in gpio-davinci, gpio-ge,
gpio-xilinx, gpio-zevio and gpio-wcd934x
- improvements to gpio-pcf857x: implement get/set_multiple callbacks, use
generic device properties instead of OF + minor tweaks
- fix OF-related header includes and Kconfig dependencies in gpio-zevio
- dynamically allocate the GPIO base in gpio-omap
- use a dedicated printf specifier for printing fwnode info in gpio-sim
- use dev_name() for the GPIO chip label in gpio-vf610
- other minor tweaks and fixes
Documentation:
- remove mentions of legacy API from comments in various places
- convert the DT binding documents to YAML schema for Fujitsu MB86S7x, Unisoc
GPIO and Unisoc EIC
- document the Unisoc UMS512 controller in DT bindings
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Merge tag 'gpio-updates-for-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"A rather small update, there are no new drivers, just improvements and
refactoring in existing ones.
Thanks to migrating of several drivers to using generalized APIs and
dropping of OF interfaces in favor of using software nodes we're
actually removing more code than we're adding.
Core GPIOLIB:
- drop several OF interfaces after moving a significant part of the
code to using software nodes
- remove more interfaces referring to the global GPIO numberspace
that we're getting rid of
- improvements in the gpio-regmap library
- add helper for GPIO device reference counting
- remove unused APIs
- minor tweaks like sorting headers alphabetically
Extended support in existing drivers:
- add support for Tegra 234 PMC to gpio-tegra186
Driver improvements:
- migrate the 104-dio/idi family of drivers to using the regmap-irq
API
- migrate gpio-i8255 and gpio-mm to the GPIO regmap API
- clean-ups in gpio-pca953x
- remove duplicate assignments of of_gpio_n_cells in gpio-davinci,
gpio-ge, gpio-xilinx, gpio-zevio and gpio-wcd934x
- improvements to gpio-pcf857x: implement get/set_multiple callbacks,
use generic device properties instead of OF + minor tweaks
- fix OF-related header includes and Kconfig dependencies in
gpio-zevio
- dynamically allocate the GPIO base in gpio-omap
- use a dedicated printf specifier for printing fwnode info in
gpio-sim
- use dev_name() for the GPIO chip label in gpio-vf610
- other minor tweaks and fixes
Documentation:
- remove mentions of legacy API from comments in various places
- convert the DT binding documents to YAML schema for Fujitsu
MB86S7x, Unisoc GPIO and Unisoc EIC
- document the Unisoc UMS512 controller in DT bindings"
* tag 'gpio-updates-for-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (54 commits)
gpio: sim: Use %pfwP specifier instead of calling fwnode API directly
gpio: tegra186: remove unneeded loop in tegra186_gpio_init_route_mapping()
gpiolib: of: Move enum of_gpio_flags to its only user
gpio: mvebu: Use IS_REACHABLE instead of IS_ENABLED for CONFIG_PWM
gpio: zevio: Add missing header
gpio: Get rid of gpio_to_chip()
gpio: pcf857x: Drop unneeded explicit casting
gpio: pcf857x: Make use of device properties
gpio: pcf857x: Get rid of legacy platform data
gpio: rockchip: Do not mention legacy API in the code
gpio: wcd934x: Remove duplicate assignment of of_gpio_n_cells
gpio: zevio: Use proper headers and drop OF_GPIO dependency
gpio: zevio: Remove duplicate assignment of of_gpio_n_cells
gpio: xilinx: Remove duplicate assignment of of_gpio_n_cells
dt-bindings: gpio: Add compatible string for Unisoc UMS512
dt-bindings: gpio: Convert Unisoc EIC controller binding to yaml
dt-bindings: gpio: Convert Unisoc GPIO controller binding to yaml
gpio: ge: Remove duplicate assignment of of_gpio_n_cells
gpio: davinci: Remove duplicate assignment of of_gpio_n_cells
gpio: omap: use dynamic allocation of base
...
This has been a fairly quiet release for SPI, though it is likely that
the next release will have some big changes as there's some preparatory
work for multiple chip select support gone in - the rest of the code is
on the list but will need to be rebased onto -rc1. Otherwise there's a couple
of new tunables for chip select timings, some new devices and smaller
device specific updates and fixes.
- Support for configuring the hold and minimum inactive times for chip
selects.
- Beginnings of support for supporting devices which have multiple chip
selects on a single device.
- Support for newer Broadcom HSSPI and Intel controllers, Silicon Labs
EM3581 and SI3210.
There is a simple add/add conflict in MAINTAINERS with the I2C tree.
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Merge tag 'spi-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"This has been a fairly quiet release for SPI, though it is likely that
the next release will have some big changes as there's some
preparatory work for multiple chip select support gone in - the rest
of the code is on the list but will need to be rebased onto -rc1.
Otherwise there's a couple of new tunables for chip select timings,
some new devices and smaller device specific updates and fixes.
- Support for configuring the hold and minimum inactive times for
chip selects.
- Beginnings of support for supporting devices which have multiple
chip selects on a single device.
- Support for newer Broadcom HSSPI and Intel controllers, Silicon
Labs EM3581 and SI3210"
* tag 'spi-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (67 commits)
spi: dt-bindings: qcom,spi-qcom-qspi: document OPP and power-domains
spi: spidev: drop the incorrect notice from Kconfig
spi: bcm63xx-hsspi: fix error code in probe
spi: bcmbca-hsspi: Fix error code in probe() function
spi: synquacer: Fix timeout handling in synquacer_spi_transfer_one()
spi: intel: Check number of chip selects after reading the descriptor
spi: xilinx: add force_irq for QSPI mode
spi: spi-st-ssc: convert to DT schema
spi: Reorder fields in 'struct spi_transfer'
spi: cadence-quadspi: use STIG mode for small reads
spi: cadence-quadspi: setup ADDR Bits in cmd reads
spi: cadence-quadspi: Add flag for direct mode writes
spi: cadence-quadspi: Reset CMD_CTRL Reg on cmd r/w completion
MAINTAINERS: Remove file reference for Broadcom Broadband SoC HS SPI driver entry
spi: bcm63xx-hsspi: bcmbca-hsspi: fix _be16 type usage
MAINTAINERS: Add entry for Broadcom Broadband SoC HS SPI drivers
spi: bcmbca-hsspi: Add driver for newer HSSPI controller
spi: bcm63xx-hsspi: Disable spi mem dual io read op support
spi: spi-mem: Allow controller supporting mem_ops without exec_op
spi: bcm63xx-hsspi: Add prepend mode support
...
This has been a very quiet release for the regulator API, there's one
new driver for the Maxim MAX20411, some DT schema conversions and some
small tweaks and improvements but really nothing major at all.
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Merge tag 'regulator-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"This has been a very quiet release for the regulator API: there's one
new driver for the Maxim MAX20411, some DT schema conversions and some
small tweaks and improvements but really nothing major at all"
* tag 'regulator-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (22 commits)
regulator: max597x: Align for simple_mfd_i2c driver
regulator: max20411: Fix off-by-one for n_voltages setting
regulator: max597x: Remove unused variable
regulator: tps65219: use generic set_bypass()
regulator: s5m8767: Bounds check id indexing into arrays
regulator: max77802: Bounds check regulator id against opmode
regulator: max20411: Convert to i2c's .probe_new()
regulator: scmi: Allow for zero voltage domains
regulator: max20411: Directly include bitfield.h
regulator: Introduce Maxim MAX20411 Step-Down converter
regulator: dt-bindings: Describe Maxim MAX20411
regulator: dt-bindings: qcom-labibb: Allow regulator-common properties
regulator: dt-bindings: fixed-regulator: allow gpios property
regulator: tps65219: use IS_ERR() to detect an error pointer
regulator: mcp16502: add enum MCP16502_REG_HPM description
regulator: fixed-helper: use the correct function name in comment
regulator: act8945a: fix non-kernel-doc comments
dt-bindings: regulators: convert non-smd RPM Regulators bindings to dt-schema
regulator: dt-bindings: Convert Fairchild FAN53555 to DT schema
regulator: dt-bindings: qcom,usb-vbus-regulator: change node name
...
A quiet release for regmap, we've seen several cleanups, an update for a
change in the MDIO APIs and one small fix.
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Merge tag 'regmap-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown:
"A quiet release for regmap: we've seen several cleanups, an update for
a change in the MDIO APIs and one small fix"
* tag 'regmap-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap-irq: Remove unused mask_invert flag
regmap-irq: Remove unused type_invert flag
regmap: Reorder fields in 'struct regmap_bus' to save some memory
regmap: apply reg_base and reg_downshift for single register ops
modpost reports section mismatch errors/warnings:
WARNING: modpost: vmlinux.o: section mismatch in reference: svm_hv_hardware_setup (section: .text) -> (unknown) (section: .init.data)
WARNING: modpost: vmlinux.o: section mismatch in reference: svm_hv_hardware_setup (section: .text) -> (unknown) (section: .init.data)
WARNING: modpost: vmlinux.o: section mismatch in reference: svm_hv_hardware_setup (section: .text) -> (unknown) (section: .init.data)
This "(unknown) (section: .init.data)" all refer to svm_x86_ops.
Tag svm_hv_hardware_setup() with __init to fix a modpost warning as the
non-stub implementation accesses __initdata (svm_x86_ops), i.e. would
generate a use-after-free if svm_hv_hardware_setup() were actually invoked
post-init. The helper is only called from svm_hardware_setup(), which is
also __init, i.e. lack of __init is benign other than the modpost warning.
Fixes: 1e0c7d4075 ("KVM: SVM: hyper-v: Remote TLB flush for SVM")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Vineeth Pillai <viremana@linux.microsoft.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org
Cc: stable@vger.kernel.org
Reviewed-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20230222073315.9081-1-rdunlap@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The majority of works in this cycle are about ASoC spread over trees.
Most of them are for new devices and cleanups / refactoring works,
and not much significant changes are seen in the core side.
Below are some highlights:
ASoC:
- Continued refactoring to move into common helper functions
- Lots of DT schema conversons and stylistic nits
- Continued work on building out the new SOF IPC4 scheme
- Continued work for Intel AVS
- New drivers for Awinc AT88395, Infineon PEB2466, Iron Device
SMA1303, Mediatek MT8188, Realtek RT712, Renesas IDT821034,
Samsung/Tesla FSD SoC I2S, and TI TAS5720A-Q1
ALSA:
- A few cleanups to make the remove callbacks to void returns
- FireWire refactoring and enhancements
- PCM kselftest enhancements
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Merge tag 'sound-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"The majority of works in this cycle are about ASoC spread over trees.
Most of them are for new devices and cleanups / refactoring works, and
not much significant changes are seen in the core side.
Below are some highlights:
ASoC:
- Continued refactoring to move into common helper functions
- Lots of DT schema conversons and stylistic nits
- Continued work on building out the new SOF IPC4 scheme
- Continued work for Intel AVS
- New drivers for Awinc AT88395, Infineon PEB2466, Iron Device
SMA1303, Mediatek MT8188, Realtek RT712, Renesas IDT821034,
Samsung/Tesla FSD SoC I2S, and TI TAS5720A-Q1
ALSA:
- A few cleanups to make the remove callbacks to void returns
- FireWire refactoring and enhancements
- PCM kselftest enhancements"
* tag 'sound-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (398 commits)
ALSA: hda/hdmi: Register with vga_switcheroo on Dual GPU Macbooks
ASoC: soc-ac97: Return correct error codes
ASoC: soc-dapm.h: fixup warning struct snd_pcm_substream not declared
ASoC: cs35l45: Remove separate namespace for tables
ASoC: cs35l45: Remove separate tables module
ASoC: soc-ac97: Convert to agnostic GPIO API
ASoC: dt-bindings: renesas,rsnd.yaml: drop "dmas/dma-names" from "rcar_sound,ssi"
ALSA: hda: cs35l41: Enable Amp High Pass Filter
ALSA: hda: cs35l41: Ensure firmware/tuning pairs are always loaded
ALSA: hda: cs35l41: Correct error condition handling
ASoC: codecs: wcd934x: Use min macro for comparison and assignment
ASoC: Intel: Skylake: Fix struct definition
ASoC: tlv320adcx140: extend list of supported samplerates
ASoC: imx-pcm-rpmsg: Remove unused variable
SoC: rt5682s: Disable jack detection interrupt during suspend
ASoC: SOF: Intel: hda-dsp: Set streaming flag for d0i3
ASoC: SOF: Intel: Enable d0i3 work for ipc4
ASoC: SOF: ipc4: Wake up dsp core before sending ipc msg
ASoC: SOF: Intel: hda-dsp: use set_pm_gate according to ipc version
ASoC: SOF: Introduce a new set_pm_gate() IPC PM op
...
Building a kcsan enabled kernel for x86_64 with gcc-11 results in a lot
of build warnings or errors without CONFIG_CONSTRUCTORS:
x86_64-linux-ld: error: unplaced orphan section `.ctors.65436' from `arch/x86/lib/copy_mc.o'
x86_64-linux-ld: error: unplaced orphan section `.ctors.65436' from `arch/x86/lib/cpu.o'
x86_64-linux-ld: error: unplaced orphan section `.ctors.65436' from `arch/x86/lib/csum-partial_64.o'
x86_64-linux-ld: error: unplaced orphan section `.ctors.65436' from `arch/x86/lib/csum-wrappers_64.o'
x86_64-linux-ld: error: unplaced orphan section `.ctors.65436' from `arch/x86/lib/insn-eval.o'
x86_64-linux-ld: error: unplaced orphan section `.ctors.65436' from `arch/x86/lib/insn.o'
x86_64-linux-ld: error: unplaced orphan section `.ctors.65436' from `arch/x86/lib/misc.o'
The same thing has been reported for mips64. I can't reproduce it for
any other compiler version, so I don't know if constructors are always
required here or if this is a gcc-11 specific implementation detail.
I see no harm in always enabling constructors here, and this reliably
fixes the build warnings for me.
Link: https://lore.kernel.org/lkml/202204181801.r3MMkwJv-lkp@intel.com/T/
Cc: Kees Cook <keescook@chromium.org>
See-also: 3e6631485f ("vmlinux.lds.h: Keep .ctors.* with .ctors")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Marco Elver <elver@google.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Commit 74e19ef0ff ("uaccess: Add speculation barrier to
copy_from_user()") built fine on x86-64 and arm64, and that's the extent
of my local build testing.
It turns out those got the <linux/nospec.h> include incidentally through
other header files (<linux/kvm_host.h> in particular), but that was not
true of other architectures, resulting in build errors
kernel/bpf/core.c: In function ‘___bpf_prog_run’:
kernel/bpf/core.c:1913:3: error: implicit declaration of function ‘barrier_nospec’
so just make sure to explicitly include the proper <linux/nospec.h>
header file to make everybody see it.
Fixes: 74e19ef0ff ("uaccess: Add speculation barrier to copy_from_user()")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Viresh Kumar <viresh.kumar@linaro.org>
Reported-by: Huacai Chen <chenhuacai@loongson.cn>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When registering huge pages, internally io_uring will split them into
many PAGE_SIZE bvec entries. That's bad for performance as drivers need
to eventually dma-map the data and will do it individually for each bvec
entry. Coalesce huge pages into one large bvec.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Iterating within the first bvec entry should be essentially free, but we
use iov_iter_advance() for that, which shows up in benchmark profiles
taking up to 0.5% of CPU. Replace it with a hand coded version.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
If two or more mappings go back to back to each other they can be passed
into io_uring to be registered as a single registered buffer. That would
even work if mappings came from different sources, e.g. it's possible to
mix in this way anon pages and pages from shmem or hugetlb. That is not
a problem but it'd rather be less prone if we forbid such mixing.
Cc: <stable@vger.kernel.org>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Using struct_size() to calculate the size of io_uring_buf_ring will sum
the size of the struct and of the bufs array. However, the struct's fields
are overlaid with the array making the calculated size larger than it
should be.
When registering a ring with N * PAGE_SIZE / sizeof(struct io_uring_buf)
entries, i.e. with fully filled pages, the calculated size will span one
more page than it should and io_uring will try to pin the following page.
Depending on how the application allocated the ring, it might succeed
using an unrelated page or fail returning EFAULT.
The size of the ring should be the product of ring_entries and the size
of io_uring_buf, i.e. the size of the bufs array only.
Fixes: c7fb19428d ("io_uring: add support for ring mapped supplied buffers")
Signed-off-by: Wojciech Lukowicz <wlukowicz01@gmail.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Link: https://lore.kernel.org/r/20230218184141.70891-1-wlukowicz01@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This better describes what it does - it's incremented when the task is
currently undergoing a cancelation operation, due to exiting or exec'ing.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
We've got a few cases of this, move them to one section and just use
gotos to get there. Reduces the text section on both arm64 and x86-64,
using gcc-12.2.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Commit 0f2cb928a1 ("arm64: consistently pass ESR_ELx to die()") caused
all callers to pass the ESR_ELx value to die().
For consistency, this patch also adds esr to die() call of cfi_handler.
Also, when CFI error occurs, die handlers can use ESR_ELx value.
Signed-off-by: Sangmoon Kim <sangmoon.kim@samsung.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230220073441.2753-1-sangmoon.kim@samsung.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Support for SME without SVE is architecturally valid and has now been tested
well enough so let's remove the warning message that is displayed at boot.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230209-arm64-sme-no-sve-v1-1-74eb3df2f878@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
During page migration, the copy_highpage function is used to copy the
page data to the target page. If the source page is a userspace page
with MTE tags, the KASAN tag of the target page must have the match-all
tag in order to avoid tag check faults during subsequent accesses to the
page by the kernel. However, the target page may have been allocated in
a number of ways, some of which will use the KASAN allocator and will
therefore end up setting the KASAN tag to a non-match-all tag. Therefore,
update the target page's KASAN tag to match the source page.
We ended up unintentionally fixing this issue as a result of a bad
merge conflict resolution between commit e059853d14 ("arm64: mte:
Fix/clarify the PG_mte_tagged semantics") and commit 20794545c1 ("arm64:
kasan: Revert "arm64: mte: reset the page tag in page->flags""), which
preserved a tag reset for PG_mte_tagged pages which was considered to be
unnecessary at the time. Because SW tags KASAN uses separate tag storage,
update the code to only reset the tags when HW tags KASAN is enabled.
Signed-off-by: Peter Collingbourne <pcc@google.com>
Link: https://linux-review.googlesource.com/id/If303d8a709438d3ff5af5fd85706505830f52e0c
Reported-by: "Kuan-Ying Lee (李冠穎)" <Kuan-Ying.Lee@mediatek.com>
Cc: <stable@vger.kernel.org> # 6.1
Fixes: 20794545c1 ("arm64: kasan: Revert "arm64: mte: reset the page tag in page->flags"")
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Link: https://lore.kernel.org/r/20230215050911.1433132-1-pcc@google.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
On Fedora 36, the 'perf record' offcpu profiling tests are failing. It
was because the BPF checks the prev task's state being S or D but
actually it has more bits set. Let's check the LSB 8 bits for the
purpose of offcpu profiling.
Reported-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20230218162724.1292657-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The patchwork automation reported a sparse complaint that
spin_shadow_stack was not declared and should be static:
../arch/riscv/kernel/traps.c:335:15: warning: symbol 'spin_shadow_stack' was not declared. Should it be static?
However, this is used in entry.S and therefore shouldn't be static.
The same applies to the shadow_stack that this pseudo spinlock is
trying to protect, so do like its charge and add a declaration to
thread_info.h
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Fixes: 7e1864332f ("riscv: fix race when vmap stack overflow")
Reviewed-by: Guo Ren <guoren@kernel.org>
Link: https://lore.kernel.org/r/20230210185945.915806-1-conor@kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
swiotlb_memblock_alloc() calls memblock_alloc(), which calls
(__init) memblock_alloc_try_nid(). However, swiotlb_membloc_alloc()
can be marked as __init since it is only called by swiotlb_init_remap(),
which is already marked as __init. This prevents a modpost build
warning/error:
WARNING: modpost: vmlinux.o: section mismatch in reference: swiotlb_memblock_alloc (section: .text) -> memblock_alloc_try_nid (section: .init.text)
WARNING: modpost: vmlinux.o: section mismatch in reference: swiotlb_memblock_alloc (section: .text) -> memblock_alloc_try_nid (section: .init.text)
This fixes the build warning/error seen on ARM64, PPC64, S390, i386,
and x86_64.
Fixes: 8d58aa4849 ("swiotlb: reduce the swiotlb buffer size on allocation failure")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Alexey Kardashevskiy <aik@amd.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: iommu@lists.linux.dev
Cc: Mike Rapoport <rppt@kernel.org>
Cc: linux-mm@kvack.org
Signed-off-by: Christoph Hellwig <hch@lst.de>
Revert the postponement of clk_disable_unused() for clock providers that
implement sync_state, and the change to drivers implementing this, until
agreement on the implementation has been reached.
This reverts:
29e31415e1 ("clk: qcom: Remove need for clk_ignore_unused on sc8280xp")
99c0f7d35c ("clk: qcom: sdm845: Use generic clk_sync_state_disable_unused callback")
26b36df751 ("clk: Add generic sync_state callback for disabling unused clocks")
Requested-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
The quartz oscillator load capacitance of the PCF85263 and PCF85363 can
be adjusted to 6 pF, 7 pF (default) and 12.5 pF with the CL[1:0] bits in
the oscillator control register (address 25h).
Signed-off-by: Javier Carrasco <javier.carrasco@wolfvision.net>
Link: https://lore.kernel.org/r/20230215081815.3141776-3-javier.carrasco@wolfvision.net
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
These Real Time Clocks are managed by the rtc-pcf85363 device driver,
which now supports the quartz-load-femtofarads property.
Signed-off-by: Javier Carrasco <javier.carrasco@wolfvision.net>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230215081815.3141776-2-javier.carrasco@wolfvision.net
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The newer chips use the newer firmware branches, e.g. v027, v029.
And, those firmware branches are supposed to support packet drop
when they are just branched out.
The initial firmware branch used by each chip is as below.
* 8852A: v009
* 8852C: v027
* 8852B: v027
So, only 8852A may use firmware which doesn't support packet drop at
runtime. To save trivial positive listing in firmware feature table,
we change to reverse judgment.
Besides, rtw89_mac_ptk_drop_by_band_and_wait() missed to check firmware
feature before calling rtw89_fw_h2c_pkt_drop(). We also fix it.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230220070202.29868-7-pkshih@realtek.com
To obtain correct packet frequency for hw_scan, 52b needs to decode
the channel index obtained from hardware. Change the driver related
set channel part as well to make driver/firmware compatible.
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230220070202.29868-5-pkshih@realtek.com
Since the range of channel table is identical among ICs. Make channel
encode/decode function common and not IC dependent. So all ICs with
matching firmware that needs this kind of coding can use it directly.
This patch doesn't change logic at all.
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230220070202.29868-4-pkshih@realtek.com
RTL8852B firmware supports CRASH_TRIGGER feature from v0.29.29.0.
After this is configured, debugfs fw_crash can support type 1 on
RTL8852B to trigger firmware crash and verify L2 recovery through
simulation.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230220070202.29868-3-pkshih@realtek.com
8852B has the same issue: management frames get stuck when wifi
chip enters low ps mode, so we alse add notify wake function to
trigger wifi chip wake before forwarding management frames.
Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230220070202.29868-2-pkshih@realtek.com
The efuse of the SDIO RTL8822CS chip has only one known member: the mac
address is at offset 0x16a. Add a struct rtw8822cs_efuse describing this
and use it for copying the mac address when the SDIO bus is used.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230218152944.48842-6-martin.blumenstingl@googlemail.com
The efuse of the SDIO RTL8822BS chip has only one known member: the mac
address is at offset 0x11a. Add a struct rtw8822bs_efuse describing this
and use it for copying the mac address when the SDIO bus is used.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230218152944.48842-5-martin.blumenstingl@googlemail.com
The efuse of the SDIO RTL8821CS chip has only one known member: the mac
address is at offset 0x11a. Add a struct rtw8821cs_efuse describing this
and use it for copying the mac address when the SDIO bus is used.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230218152944.48842-4-martin.blumenstingl@googlemail.com
txdma_queue_mapping() and priority_queue_cfg() can use the first entry
of each chip's rqpn_table and page_table. Add this mapping so data
transmission is possible on SDIO based chipsets.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230218152944.48842-3-martin.blumenstingl@googlemail.com
rtw_pwr_seq_parser() needs to know about the HCI bus interface mask for
the SDIO bus so it can parse the chip state change sequences.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230218152944.48842-2-martin.blumenstingl@googlemail.com
Since 6 GHz band has around 60 channels and more strict rules for
active probing. Reduced neighbor report can be used to reduce the
channels we scan and get specific target BSS info to probe for.
Declare flag WIPHY_FLAG_SPLIT_SCAN_6GHZ so the scan request could be
divided into two portions: legacy bands and 6 GHz bands. So RNR
information from legacy bands could later be used when 6 GHz scan.
When the scan flag NL80211_SCAN_FLAG_COLOCATED_6GHZ is set, cfg80211
will pass down a reduced channel set which contains PSCs and non-PSC
with RNR info received in the 2 GHz/5 GHz band. This reduces the
scan duration by allowing us to only scan for channels in which APs
are currently operating.
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230217120007.8835-1-pkshih@realtek.com
Intentionally parsing single one element of RA report by breaking loop
causes a smatch warning:
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c:1678 rtl8188e_handle_ra_tx_report2() warn:
ignoring unreachable code.
With existing comments, it intends to process single one element for
station mode, but it will parse more elements in AP mode if it's
implemented. Implement program logic according to existing comment to avoid
smatch warning, and also be usable for both AP and stations modes.
Compile test only.
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/202302142135.LCqUTVGY-lkp@intel.com/
Cc: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Tested-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230216004654.4642-1-pkshih@realtek.com
