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1,462,193 commits

Author SHA1 Message Date
Val Packett
987170d0b8 drm/panel: himax-hx83102: Add support for DSI DCS backlight control
The HTF065H045 panel based on the HX83102 controller does use DCS
commands for controlling backlight brightness. Make the driver fall back
to DCS when no external backlight has been defined in the device tree,
like many other drivers do.

Signed-off-by: Val Packett <val@packett.cool>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260217070121.190108-5-val@packett.cool
2026-03-26 10:00:05 +01:00
Val Packett
cc72a47348 drm/panel: himax-hx83102: Add support for Holitech HTF065H045
This 720x1600 panel is found in several Motorola/Lenovo smartphones like
the Moto G9 Play (guamp). The initialization sequence is based on the
datasheet. Add it to the existing HX83102 panel driver.

Signed-off-by: Val Packett <val@packett.cool>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260217070121.190108-4-val@packett.cool
2026-03-26 10:00:04 +01:00
Val Packett
896e7b8c17 dt-bindings: display: panel: Add compatible for Holitech HTF065H045
Add a new compatible for the Holitech HTF065H045 panel that uses the
Himax HX83102 controller IC.

Signed-off-by: Val Packett <val@packett.cool>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260217070121.190108-3-val@packett.cool
2026-03-26 10:00:04 +01:00
Val Packett
c122ddd573 dt-bindings: vendor-prefixes: Add Holitech
Jiangxi Holitech Technology Co., Ltd. is a manufacturer of display panels.

Signed-off-by: Val Packett <val@packett.cool>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260217070121.190108-2-val@packett.cool
2026-03-26 10:00:04 +01:00
Yedaya Katsman
49837b6bab drm: panel: Add Samsung S6E8FC0 DSI controller for M1906F9 panel
Add driver for Samsung S6E8FC0 DSI controller for M1906F9 video mode panel,
found in Xiaomi Mi A3 mobile phone.

Co-developed-by: Kamil Gołda <kamil.golda@protonmail.com>
Signed-off-by: Kamil Gołda <kamil.golda@protonmail.com>
Reviewed-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Yedaya Katsman <yedaya.ka@gmail.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260320-panel-patches-v7-2-3eaefc4b3878@gmail.com
2026-03-26 10:00:04 +01:00
Yedaya Katsman
f4693b88bc dt-bindings: display: panel: Add Samsung S6E8FC0-M1906F9
Add Samsung S6E8FC0 DTS binding used with the M1906F9 6.09" 720x1560
panel found in the Xiaomi Mi A3 smartphone.

Co-developed-by: Kamil Gołda <kamil.golda@protonmail.com>
Signed-off-by: Kamil Gołda <kamil.golda@protonmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Yedaya Katsman <yedaya.ka@gmail.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260320-panel-patches-v7-1-3eaefc4b3878@gmail.com
2026-03-26 10:00:04 +01:00
Dmitry Baryshkov
c222177d7c drm/panel: sharp-ls043t1le01: make use of prepare_prev_first
The DSI link must be powered up to let panel driver to talk to the panel
during prepare() callback execution. Set the prepare_prev_first flag to
guarantee this.

Fixes: 9e15123eca ("drm/msm/dsi: Stop unconditionally powering up DSI hosts at modeset")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260323-panel-fix-v1-1-9f12b09161e8@oss.qualcomm.com
2026-03-26 10:00:04 +01:00
Krzysztof Kozlowski
a00e773b4a dt-bindings: display: panel: Align style of "true" properties
For code readability, several bindings which list allowed properties
with ": true" syntax group them in one place, without line breaks
between each.  Align a few bindings to match this style.  No functional
impact.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260313-dt-bindings-display-panel-clean-v2-1-d49615218f92@oss.qualcomm.com
2026-03-26 10:00:04 +01:00
Liu Ying
310b05505c drm/panel: simple: Add Tianma TM050RDH03 panel
Add the Tianma Micro-electronics TM050RDH03 5.0" WVGA TFT LCD panel.

Reuse panel ontat,kd50g21-40nt-a1's panel description as they are
identical.

Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260227-tianma-tm050rdh03-v1-2-cab78a0d765d@nxp.com
2026-03-26 10:00:04 +01:00
Liu Ying
dfefca41a4 dt-bindings: display: simple: Add Tianma TM050RDH03 panel
Add the Tianma Micro-electronics TM050RDH03 5.0" WVGA TFT LCD panel.

Signed-off-by: Liu Ying <victor.liu@nxp.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260227-tianma-tm050rdh03-v1-1-cab78a0d765d@nxp.com
2026-03-26 10:00:04 +01:00
Dario Binacchi
a05f291175 drm/panel: ilitek-ili9806e: add Rocktech RK050HR345-CT106A SPI panel
Add support for the Rocktech RK050HR345-CT106A panel based on the
Ilitek ILI9806E controller using the SPI bus.

The driver is designed to be easily extensible to support other panels
with different initialization sequences and display timings by
providing a specific descriptor structure for each model.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260318073346.18041-5-dario.binacchi@amarulasolutions.com
2026-03-26 10:00:04 +01:00
Dario Binacchi
7cad20e339 dt-bindings: ili9806e: add Rocktech RK050HR345-CT106A display
Document the Rocktech 5" 480x854 panel based on the Ilitek ILI9806E
controller.

This panel uses SPI for control and an RGB interface for display
data, so adjust the binding requirements accordingly.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260318073346.18041-4-dario.binacchi@amarulasolutions.com
2026-03-26 10:00:04 +01:00
Dario Binacchi
0efa792424 drm/panel: ilitek-ili9806e: split core and DSI logic
Split the driver to support multiple transport buses. The core logic
(power, GPIO, backlight) is moved to a dedicated core module, while
DSI-specific code is restricted to the DSI module.

Introduce DRM_PANEL_ILITEK_ILI9806E_CORE as a hidden Kconfig symbol
selected by the bus-specific configuration.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260318073346.18041-3-dario.binacchi@amarulasolutions.com
2026-03-26 10:00:04 +01:00
Dario Binacchi
3bdd847ac2 drm/panel: ilitek-ili9806e: rename to specific DSI driver
The Ilitek ILI9806E controller can support different transport buses,
such as MIPI-DSI and SPI. The current implementation is specific to
the MIPI-DSI interface.

In preparation for adding SPI support, rename the current Kconfig
symbol and files to be DSI-specific, clarifying the current scope
of the code.

Since DRM_PANEL_ILITEK_ILI9806E is not used in any in-tree defconfig,
the symbol is renamed directly to DRM_PANEL_ILITEK_ILI9806E_DSI without
providing a legacy compatibility alias.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260318073346.18041-2-dario.binacchi@amarulasolutions.com
2026-03-26 10:00:04 +01:00
Pengyu Luo
a7c61963b7 drm/panel: Add Himax HX83121A panel driver
Add a driver for panels using the Himax HX83121A Display Driver IC,
including support for the BOE/CSOT PPC357DB1-4, found in HUAWEI
Matebook E Go series (Gaokun2/3).

Signed-off-by: Pengyu Luo <mitltlatltl@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260316084040.728106-3-mitltlatltl@gmail.com
2026-03-26 10:00:04 +01:00
Pengyu Luo
9f96a50d61 dt-bindings: display: panel: Add Himax HX83121A
HX83121A is a driver IC used to drive MIPI-DSI panels. It is found
in HUAWEI Matebook E Go series (Gaokun2/3) with BOE or CSOT panels.

Signed-off-by: Pengyu Luo <mitltlatltl@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260316084040.728106-2-mitltlatltl@gmail.com
2026-03-26 10:00:04 +01:00
Steffen Trumtrar
7a5b966952 drm/panel: simple: add JuTouch JT070TM041
Add JuTouch Technology JT070TM041 7" 1024x600 LVDS panel support.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260325-v7-0-topic-imx8mp-skov-dts-jutouch-7inch-v1-2-10255d236439@pengutronix.de
2026-03-26 10:00:04 +01:00
Steffen Trumtrar
87535f2706 dt-bindings: display: simple: Add JuTouch JT070TM041 panel
Add the JuTouch Technology Co. 7" JT070TM041 LVDS panel.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260325-v7-0-topic-imx8mp-skov-dts-jutouch-7inch-v1-1-10255d236439@pengutronix.de
2026-03-26 10:00:04 +01:00
Mithil Bavishi
0c74f4e8d7 dt-bindings: display: bridge: lvds-codec: add doestek,dtc34lm85am
Add compatible strings for the Doestek DTC34LM85AM Flat Panel Display
Transmitter

Signed-off-by: Mithil Bavishi <bavishimithil@gmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260223134941.427-4-bavishimithil@gmail.com
2026-03-26 09:59:56 +01:00
Chuck Lever
84a8335d83 tls: Purge async_hold in tls_decrypt_async_wait()
The async_hold queue pins encrypted input skbs while
the AEAD engine references their scatterlist data. Once
tls_decrypt_async_wait() returns, every AEAD operation
has completed and the engine no longer references those
skbs, so they can be freed unconditionally.

A subsequent patch adds batch async decryption to
tls_sw_read_sock(), introducing a new call site that
must drain pending AEAD operations and release held
skbs. Move __skb_queue_purge(&ctx->async_hold) into
tls_decrypt_async_wait() so the purge is centralized
and every caller -- recvmsg's drain path, the -EBUSY
fallback in tls_do_decryption(), and the new read_sock
batch path -- releases held skbs on synchronization
without each site managing the purge independently.

This fixes a leak when tls_strp_msg_hold() fails part-way through,
after having added some cloned skbs to the async_hold
queue. tls_decrypt_sg() will then call tls_decrypt_async_wait() to
process all pending decrypts, and drop back to synchronous mode, but
tls_sw_recvmsg() only flushes the async_hold queue when one record has
been processed in "fully-async" mode, which may not be the case here.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reported-by: Yiming Qian <yimingqian591@gmail.com>
Fixes: b8a6ff84ab ("tls: wait for pending async decryptions if tls_strp_msg_hold fails")
Link: https://patch.msgid.link/20260324-tls-read-sock-v5-1-5408befe5774@oracle.com
[pabeni@redhat.com: added leak comment]
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-03-26 09:55:53 +01:00
Shenwei Wang
c720fb57d5 gpio: mxc: map Both Edge pad wakeup to Rising Edge
Suspend may fail on i.MX8QM when Falling Edge is used as a pad wakeup
trigger due to a hardware bug in the detection logic. Since the hardware
does not support Both Edge wakeup, remap requests for Both Edge to Rising
Edge by default to avoid hitting this issue.

A warning is emitted when Falling Edge is selected on i.MX8QM.

Fixes: f60c9eac54 ("gpio: mxc: enable pad wakeup on i.MX8x platforms")
cc: stable@vger.kernel.org
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com>
Link: https://patch.msgid.link/20260324192129.2797237-1-shenwei.wang@nxp.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
2026-03-26 09:41:44 +01:00
Arnd Bergmann
af475c16bc gpio: fix up CONFIG_OF dependencies
A number of GPIO drivers that used to have a CONFIG_OF_GPIO dependency now fail
to build on targets without CONFIG_OF:

WARNING: unmet direct dependencies detected for GPIO_SYSCON
  Depends on [n]: GPIOLIB [=y] && HAS_IOMEM [=y] && MFD_SYSCON [=y] && OF [=n]
  Selected by [y]:
  - GPIO_SAMA5D2_PIOBU [=y] && GPIOLIB [=y] && HAS_IOMEM [=y] && MFD_SYSCON [=y] && (ARCH_AT91 || COMPILE_TEST [=y])

drivers/gpio/gpio-mt7621.c: In function 'mediatek_gpio_bank_probe':
drivers/gpio/gpio-mt7621.c:254:20: error: 'struct gpio_chip' has no member named 'of_gpio_n_cells'
  254 |         rg->chip.gc.of_gpio_n_cells = 2;
      |                    ^
drivers/gpio/gpio-tegra186.c: In function 'tegra186_gpio_of_xlate':
drivers/gpio/gpio-tegra186.c:502:25: error: 'struct gpio_chip' has no member named 'of_gpio_n_cells'
  502 |         if (WARN_ON(chip->of_gpio_n_cells < 2))
      |                         ^~
drivers/gpio/gpio-lpc32xx.c: In function 'lpc32xx_gpio_probe':
drivers/gpio/gpio-lpc32xx.c:523:49: error: 'struct gpio_chip' has no member named 'of_xlate'
  523 |                         lpc32xx_gpiochip[i].chip.of_xlate = lpc32xx_of_xlate;
      |                                                 ^
drivers/gpio/gpio-spacemit-k1.c: In function 'spacemit_gpio_add_bank':
drivers/gpio/gpio-spacemit-k1.c:234:11: error: 'struct gpio_chip' has no member named 'of_gpio_n_cells'
  234 |         gc->of_gpio_n_cells     = 3;
      |           ^~

Bring that back as a dependency.

Fixes: 7803501e57 ("gpio: drop unneeded Kconfig dependencies on OF_GPIO")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20260325100144.1696731-1-arnd@kernel.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
2026-03-26 09:40:55 +01:00
Mithil Bavishi
e1f4ecd21f dt-bindings: vendor-prefixes: Add Doestek
Add vendor prefix for Doestek Co., Ltd.
Link: http://www.doestek.co.kr/

Signed-off-by: Mithil Bavishi <bavishimithil@gmail.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260223134941.427-3-bavishimithil@gmail.com
2026-03-26 09:40:18 +01:00
Marc Buerg
f63a9df7e3 sysctl: fix uninitialized variable in proc_do_large_bitmap
proc_do_large_bitmap() does not initialize variable c, which is expected
to be set to a trailing character by proc_get_long().

However, proc_get_long() only sets c when the input buffer contains a
trailing character after the parsed value.

If c is not initialized it may happen to contain a '-'. If this is the
case proc_do_large_bitmap() expects to be able to parse a second part of
the input buffer. If there is no second part an unjustified -EINVAL will
be returned.

Initialize c to 0 to prevent returning -EINVAL on valid input.

Fixes: 9f977fb7ae ("sysctl: add proc_do_large_bitmap")
Signed-off-by: Marc Buerg <buermarc@googlemail.com>
Reviewed-by: Joel Granados <joel.granados@kernel.org>
Signed-off-by: Joel Granados <joel.granados@kernel.org>
2026-03-26 09:32:19 +01:00
Aldo Conte
d0b224cf9a iio: light: veml6070: fix veml6070_read() return value
veml6070_read() computes the sensor value in ret but
returns 0 instead of the actual result. This causes
veml6070_read_raw() to always report 0.

Return the computed value instead of 0.

Running make W=1 returns no errors. I was unable
to test the patch because I do not have the hardware.
Found by code inspection.

Fixes: fc38525135 ("iio: light: veml6070: use guard to handle mutex")
Signed-off-by: Aldo Conte <aldocontelk@gmail.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-26 08:22:33 +00:00
Siratul Islam
128e5ebec8 iio: proximity: add driver for ST VL53L1X ToF sensor
Add support for the STMicroelectronics VL53L1X Time-of-Flight
ranging sensor with I2C interface.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Siratul Islam <email@sirat.me>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-26 08:22:00 +00:00
Siratul Islam
2c9225e8d2 dt-bindings: iio: proximity: add ST VL53L1X ToF sensor
Add device tree binding documentation for the STMicroelectronics
VL53L1X Time-of-Flight ranging sensor connected via I2C.

vdd-supply is not made globally required to maintain backwards
compatibility with existing st,vl53l0x devicetrees that do not specify it.

Signed-off-by: Siratul Islam <email@sirat.me>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-26 08:20:51 +00:00
GuoHan Zhao
cd7e1fef5a xen/privcmd: unregister xenstore notifier on module exit
Commit 453b8fb68f ("xen/privcmd: restrict usage in
unprivileged domU") added a xenstore notifier to defer setting the
restriction target until Xenstore is ready.

XEN_PRIVCMD can be built as a module, but privcmd_exit() leaves that
notifier behind. Balance the notifier lifecycle by unregistering it on
module exit.

This is harmless even if xenstore was already ready at registration
time and the notifier was never queued on the chain.

Fixes: 453b8fb68f ("xen/privcmd: restrict usage in unprivileged domU")
Signed-off-by: GuoHan Zhao <zhaoguohan@kylinos.cn>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Message-ID: <20260325120246.252899-1-zhaoguohan@kylinos.cn>
2026-03-26 08:57:51 +01:00
Christoph Manszewski
059b7b5b79 mailmap: update email address for Christoph Manszewski
Since I am moving from intel, map the intel mail to my personal Gmail
address.

Signed-off-by: Christoph Manszewski <christoph.manszewski@intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patch.msgid.link/20260325212342.4388-1-c.manszewski@gmail.com
2026-03-26 09:53:29 +02:00
Inochi Amaoto
74657a3769 riscv: dts: spacemit: Add ethernet device for K3
Add all ethernet device nodes for K3 SoC.

Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Reviewed-by: Yixun Lan <dlan@kernel.org>
Link: https://lore.kernel.org/r/20260326014617.1011732-1-inochiama@gmail.com
Signed-off-by: Yixun Lan <dlan@kernel.org>
2026-03-26 07:38:01 +00:00
Chen-Yu Tsai
e3eb0e7081 drm/gem-dma: set VM_DONTDUMP for mmap
When the mmap function was converted from a file op to a GEM object
function in commit f5ca8eb6f9 ("drm/cma-helper: Implement mmap as GEM
CMA object functions") some VM flags were not lifted from drm_gem_mmap():

  - VM_IO
  - VM_DONTEXPAND
  - VM_DONTDUMP

VM_DONTEXPAND was added back in commit 59f39bfa65 ("drm/cma-helper:
Set VM_DONTEXPAND for mmap"). VM_IO doesn't make sense since these are
memory buffers, while "IO tells people not to look at these pages
(accesses can have side effects)".

Add back VM_DONTDUMP. This matches the behavior of most other GEM
implementations.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260317040034.617585-1-wenst@chromium.org
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
2026-03-26 14:35:18 +08:00
Bibo Mao
6bcfb7f46d LoongArch: KVM: Fix base address calculation in kvm_eiointc_regs_access()
In function kvm_eiointc_regs_access(), the register base address is
caculated from array base address plus offset, the offset is absolute
value from the base address. The data type of array base address is
u64, it should be converted into the "void *" type and then plus the
offset.

Cc: <stable@vger.kernel.org>
Fixes: d3e43a1f34 ("LoongArch: KVM: Use 64-bit register definition for EIOINTC").
Reported-by: Aurelien Jarno <aurel32@debian.org>
Link: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1131431
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2026-03-26 14:29:09 +08:00
Huacai Chen
b97bd69eb0 LoongArch: KVM: Handle the case that EIOINTC's coremap is empty
EIOINTC's coremap in eiointc_update_sw_coremap() can be empty, currently
we get a cpuid with -1 in this case, but we actually need 0 because it's
similar as the case that cpuid >= 4.

This fix an out-of-bounds access to kvm_arch::phyid_map::phys_map[].

Cc: <stable@vger.kernel.org>
Fixes: 3956a52bc0 ("LoongArch: KVM: Add EIOINTC read and write functions")
Reported-by: Aurelien Jarno <aurel32@debian.org>
Link: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1131431
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2026-03-26 14:29:09 +08:00
Huacai Chen
2db06c15d8 LoongArch: KVM: Make kvm_get_vcpu_by_cpuid() more robust
kvm_get_vcpu_by_cpuid() takes a cpuid parameter whose type is int, so
cpuid can be negative. Let kvm_get_vcpu_by_cpuid() return NULL for this
case so as to make it more robust.

This fix an out-of-bounds access to kvm_arch::phyid_map::phys_map[].

Cc: <stable@vger.kernel.org>
Fixes: 73516e9da5 ("LoongArch: KVM: Add vcpu mapping from physical cpuid")
Reported-by: Aurelien Jarno <aurel32@debian.org>
Link: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1131431
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2026-03-26 14:29:09 +08:00
Xi Ruoyao
e4878c37f6 LoongArch: vDSO: Emit GNU_EH_FRAME correctly
With -fno-asynchronous-unwind-tables and --no-eh-frame-hdr (the default
of the linker), the GNU_EH_FRAME segment (specified by vdso.lds.S) is
empty.  This is not valid, as the current DWARF specification mandates
the first byte of the EH frame to be the version number 1.  It causes
some unwinders to complain, for example the ClickHouse query profiler
spams the log with messages:

    clickhouse-server[365854]: libunwind: unsupported .eh_frame_hdr
    version: 127 at 7ffffffb0000

Here "127" is just the byte located at the p_vaddr (0, i.e. the
beginning of the vDSO) of the empty GNU_EH_FRAME segment. Cross-
checking with /proc/365854/maps has also proven 7ffffffb0000 is the
start of vDSO in the process VM image.

In LoongArch the -fno-asynchronous-unwind-tables option seems just a
MIPS legacy, and MIPS only uses this option to satisfy the MIPS-specific
"genvdso" program, per the commit cfd75c2db1 ("MIPS: VDSO: Explicitly
use -fno-asynchronous-unwind-tables").  IIRC it indicates some inherent
limitation of the MIPS ELF ABI and has nothing to do with LoongArch.  So
we can simply flip it over to -fasynchronous-unwind-tables and pass
--eh-frame-hdr for linking the vDSO, allowing the profilers to unwind the
stack for statistics even if the sample point is taken when the PC is in
the vDSO.

However simply adjusting the options above would exploit an issue: when
the libgcc unwinder saw the invalid GNU_EH_FRAME segment, it silently
falled back to a machine-specific routine to match the code pattern of
rt_sigreturn() and extract the registers saved in the sigframe if the
code pattern is matched.  As unwinding from signal handlers is vital for
libgcc to support pthread cancellation etc., the fall-back routine had
been silently keeping the LoongArch Linux systems functioning since
Linux 5.19.  But when we start to emit GNU_EH_FRAME with the correct
format, fall-back routine will no longer be used and libgcc will fail
to unwind the sigframe, and unwinding from signal handlers will no
longer work, causing dozens of glibc test failures.  To make it possible
to unwind from signal handlers again, it's necessary to code the unwind
info in __vdso_rt_sigreturn via .cfi_* directives.

The offsets in the .cfi_* directives depend on the layout of struct
sigframe, notably the offset of sigcontext in the sigframe.  To use the
offset in the assembly file, factor out struct sigframe into a header to
allow asm-offsets.c to output the offset for assembly.

To work around a long-term issue in the libgcc unwinder (the pc is
unconditionally substracted by 1: doing so is technically incorrect for
a signal frame), a nop instruction is included with the two real
instructions in __vdso_rt_sigreturn in the same FDE PC range.  The same
hack has been used on x86 for a long time.

Cc: stable@vger.kernel.org
Fixes: c6b99bed6b ("LoongArch: Add VDSO and VSYSCALL support")
Signed-off-by: Xi Ruoyao <xry111@xry111.site>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2026-03-26 14:29:09 +08:00
Huacai Chen
95db0c9f52 LoongArch: Workaround LS2K/LS7A GPU DMA hang bug
1. Hardware limitation: GPU, DC and VPU are typically PCI device 06.0,
06.1 and 06.2. They share some hardware resources, so when configure the
PCI 06.0 device BAR1, DMA memory access cannot be performed through this
BAR, otherwise it will cause hardware abnormalities.

2. In typical scenarios of reboot or S3/S4, DC access to memory through
BAR is not prohibited, resulting in GPU DMA hangs.

3. Workaround method: When configuring the 06.0 device BAR1, turn off
the memory access of DC, GPU and VPU (via DC's CRTC registers).

Cc: stable@vger.kernel.org
Signed-off-by: Qianhai Wu <wuqianhai@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2026-03-26 14:29:09 +08:00
Li Jun
3a28daa9b7 LoongArch: Fix missing NULL checks for kstrdup()
1. Replace "of_find_node_by_path("/")" with "of_root" to avoid multiple
calls to "of_node_put()".

2. Fix a potential kernel oops during early boot when memory allocation
fails while parsing CPU model from device tree.

Cc: stable@vger.kernel.org
Signed-off-by: Li Jun <lijun01@kylinos.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2026-03-26 14:29:08 +08:00
Alexandre Courbot
1998e6be82 Documentation: nova: remove register abstraction task
The `register!` macro has been implemented and all nova-core code
converted to use it. Remove the corresponding task in todo.rst.

Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260325-b4-nova-register-v4-10-bdf172f0f6ca@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
2026-03-26 15:10:29 +09:00
Alexandre Courbot
2278f97bb3 gpu: nova-core: remove io:: qualifier to register macro invocations
The kernel's `register` macro would clash with nova-core's own version
if it was imported directly, so it was accessed through its `io` module
during the conversion phase.

Now that nova-core's `register` macro doesn't exist anymore, we can
import and use it directly without risk of name collision.

Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260325-b4-nova-register-v4-9-bdf172f0f6ca@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
2026-03-26 15:10:29 +09:00
Alexandre Courbot
38f7e5450e gpu: nova-core: convert falcon registers to kernel register macro
Convert all PFALCON, PFALCON2 and PRISCV registers to use the kernel's
register macro and update the code accordingly.

Because they rely on the same types to implement relative registers,
they need to be updated in lockstep.

nova-core's local register macro is now unused, so remove it.

Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260325-b4-nova-register-v4-8-bdf172f0f6ca@nvidia.com
[acourbot@nvidia.com: remove unused import.]
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
2026-03-26 15:09:44 +09:00
Alexandre Courbot
02ade2557e gpu: nova-core: convert PDISP registers to kernel register macro
Convert all PDISP registers to use the kernel's register macro and
update the code accordingly.

Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
Reviewed-by: Joel Fernandes <joelagnelf@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260325-b4-nova-register-v4-7-bdf172f0f6ca@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
2026-03-26 15:08:28 +09:00
Alexandre Courbot
1a8f58c5e1 gpu: nova-core: convert FUSE registers to kernel register macro
Convert all FUSE registers to use the kernel's register macro and update
the code accordingly.

Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260325-b4-nova-register-v4-6-bdf172f0f6ca@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
2026-03-26 15:08:28 +09:00
Alexandre Courbot
ffabad08e4 gpu: nova-core: convert GC6 registers to kernel register macro
Convert all GC6 registers to use the kernel's register macro and update
the code accordingly.

Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260325-b4-nova-register-v4-5-bdf172f0f6ca@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
2026-03-26 15:08:28 +09:00
Alexandre Courbot
7973858907 gpu: nova-core: convert PFB registers to kernel register macro
Convert all PFB registers to use the kernel's register macro and update
the code accordingly.

NV_PGSP_QUEUE_HEAD was somehow caught in the PFB section, so move it to
its own section and convert it as well.

Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260325-b4-nova-register-v4-4-bdf172f0f6ca@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
2026-03-26 15:08:27 +09:00
Alexandre Courbot
4e7588dcb0 gpu: nova-core: convert PBUS registers to kernel register macro
Convert all PBUS registers to use the kernel's register macro and update
the code accordingly.

Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260325-b4-nova-register-v4-3-bdf172f0f6ca@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
2026-03-26 15:08:27 +09:00
Alexandre Courbot
1b155edcab gpu: nova-core: convert PMC registers to kernel register macro
Convert all PMC registers to use the kernel's register macro and update
the code accordingly.

Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260325-b4-nova-register-v4-2-bdf172f0f6ca@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
2026-03-26 15:08:27 +09:00
Alexandre Courbot
b525d0c5e9 gpu: nova-core: introduce bounded_enum macro
Introduce a powered-up version of our ad-hoc `impl_from_enum_to_u8`
macro that allows the definition of an enum type associated to a
`Bounded` of a given width, and provides the `From` and `TryFrom`
implementations required to use that enum as a register field member.

This allows us to generate the required conversion implementations for
using the kernel register macro and skip some tedious boilerplate.

Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260325-b4-nova-register-v4-1-bdf172f0f6ca@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
2026-03-26 15:08:27 +09:00
Jouni Högander
1de647abdf drm/i915/psr: Fixes for Dell XPS DA14260 quirk
Dell seems to be changing device ID even within same device model. Due to
this we need to ignore device ID when applying quirk for Dell XPS 14
DA14260. Do this by adding DEVICE_ID_ANY and assign it to Dell XPS 14
DA14260 quirk. Also apply the quirk only for eDP Panel Replay.

Fixes: 45c77d4bf8 ("drm/i915/psr: Disable Panel Replay on Dell XPS 14 DA14260 as a quirk")
Cc: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patch.msgid.link/20260320080403.1396926-1-jouni.hogander@intel.com
2026-03-26 07:17:01 +02:00
Zhao Mengmeng
f546c77038 tools/sched_ext: scx_pair: fix pair_ctx indexing for CPU pairs
scx_pair sizes pair_ctx to nr_cpu_ids / 2, so valid pair_ctx keys are
dense pair indexes in the range [0, nr_cpu_ids / 2).

However, the userspace setup code stores pair_id as the first CPU number
in each pair. On an 8-CPU system with "-S 1", that produces pair IDs
0, 2, 4 and 6 for pairs [0,1], [2,3], [4,5] and [6,7]. CPUs in the
latter half then look up pair_ctx with out-of-range keys and the BPF
scheduler aborts with:

EXIT: scx_bpf_error (scx_pair.bpf.c:328: failed to lookup pairc and
in_pair_mask for cpu[5])

Assign pair_id using a dense pair counter instead so that each CPU pair
maps to a valid pair_ctx entry. Besides, reject odd CPU configuration, as
scx_pair requires all CPUs to be paired.

Fixes: f0262b102c ("tools/sched_ext: add scx_pair scheduler")
Signed-off-by: Zhao Mengmeng <zhaomengmeng@kylinos.cn>
Signed-off-by: Tejun Heo <tj@kernel.org>
2026-03-25 17:45:23 -10:00
Thorsten Blum
1601fe9e04 ecryptfs: Log function name only once in decode_and_decrypt_filename
ecryptfs_printk() already prints the function name using %s and
__func__. Drop the redundant function name from the debug log message.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Tyler Hicks <code@tyhicks.com>
2026-03-25 22:39:27 -05:00