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Author SHA1 Message Date
Kuppuswamy Sathyanarayanan
a229809c18
platform/x86: intel-uncore-freq: Add additional client processors
Add Intel uncore frequency driver support for Pantherlake, Wildcatlake
and Novalake processors.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: https://patch.msgid.link/20251022211733.3565526-1-sathyanarayanan.kuppuswamy@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-11-06 14:19:18 +02:00
Krishna Chomal
fb146a38cb
platform/x86: hp-wmi: Add Omen 16-wf1xxx fan support
The newer HP Omen laptops, such as Omen 16-wf1xxx, use the same
WMI-based thermal profile interface as Victus 16-r1000 and 16-s1000
models.

Add the DMI board name "8C78" to the victus_s_thermal_profile_boards
list to enable proper fan and thermal mode control.

Tested on: HP Omen 16-wf1xxx (board 8C78)
Result:
* Fan RPMs are readable
* echo 0 | sudo tee /sys/devices/platform/hp-wmi/hwmon/*/pwm1_enable
  allows the fans to run on max RPM.

Signed-off-by: Krishna Chomal <krishna.chomal108@gmail.com>
Link: https://patch.msgid.link/20251018111001.56625-1-krishna.chomal108@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-11-06 14:19:06 +02:00
Jia Ston
5c72329716
platform/x86: huawei-wmi: add keys for HONOR models
HONOR MagicBook X16/X14 models produced in 2025 cannot use the Print
Screen and YOYO keys properly, with the system reporting them as
unknown key presses (codes: 0x028b and 0x028e).

To resolve this, a key_entry is added for both the HONOR Print Screen
key and the HONOR YOYO key, ensuring they function correctly on these
models.

Signed-off-by: Ston Jia <ston.jia@outlook.com>
Link: https://patch.msgid.link/20251029051804.220111-1-ston.jia@outlook.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-11-06 14:11:43 +02:00
Edip Hazuri
54afb047cd
platform/x86: hp-wmi: mark Victus 16-r0 and 16-s0 for victus_s fan and thermal profile support
This patch adds Victus 16-r0 (8bbe) and Victus 16-s0(8bd4, 8bd5) laptop
DMI board name into existing list

Signed-off-by: Edip Hazuri <edip@medip.dev>
Link: https://patch.msgid.link/20251015181042.23961-3-edip@medip.dev
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-11-06 14:10:59 +02:00
Troy Mitchell
0ee5993466
riscv: dts: spacemit: add MusePi Pro board device tree
Add initial device tree support for the MusePi Pro board [1].
The board is using the SpacemiT K1/M1 SoC.

This device tree is adapted from the SpacemiT vendor tree [2] and
enables basic board functionality, including UART console, LED, eMMC,
Ethernet, and PDMA.

Link: https://developer.spacemit.com/documentation?token=YJtdwnvvViPVcmkoPDpcvwfVnrh&type=pdf [1]
Link: https://gitee.com/bianbu-linux/linux-6.6/blob/k1-bl-v2.2.y/arch/riscv/boot/dts/spacemit/k1-x_MUSE-Pi-Pro.dts [2]
Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Link: https://lore.kernel.org/r/20251023-k1-musepi-pro-dts-v4-2-01836303e10f@linux.spacemit.com
Signed-off-by: Yixun Lan <dlan@gentoo.org>
2025-11-06 20:07:52 +08:00
Troy Mitchell
2cc2289063
dt-bindings: riscv: spacemit: add MusePi Pro board
Document the compatible string for the MusePi Pro [1]. It is a 1.8-inch
single board computer based on the SpacemiT K1/M1 RISC-V SoC [2].

Here's a refined list of its core features:
  - SoC: SpacemiT M1/K1, 8-core 64-bit RISC-V.
  - Memory: LPDDR4X @ 2400MT/s, available in 8GB & 16GB options.
  - Storage: Onboard eMMC 5.1 (64GB/128GB options), M.2 M-Key for NVMe
             SSD (2230 size), and a microSD slot (UHS-II) for expansion.
  - Display: HDMI 1.4 (1080P@60Hz) and 2-lane MIPI DSI FPC (1080P@60Hz).
  - Connectivity: Onboard Wi-Fi 6 & Bluetooth 5.2, single Gigabit Ethernet
                  port (RJ45).
  - USB: 4x USB 3.0 Type-A (host) and 1x USB 2.0 Type-C (device/OTG).
  - Expansion: Full-size miniPCIe slot and a second M.2 M-Key (2230).
  - GPIO: Standard 40-pin GPIO interface.
  - MIPI: 1x 4-lane MIPI CSI FPC and 2x MIPI DSI FPC interfaces.
  - Clock: Onboard RTC with battery support.

Link: https://developer.spacemit.com/documentation?token=YJtdwnvvViPVcmkoPDpcvwfVnrh&type=pdf [1]
Link: https://www.spacemit.com/en/key-stone-k1 [2]
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Link: https://lore.kernel.org/r/20251023-k1-musepi-pro-dts-v4-1-01836303e10f@linux.spacemit.com
Signed-off-by: Yixun Lan <dlan@gentoo.org>
2025-11-06 20:07:40 +08:00
Thomas Weißschuh
293f71435d um: Always set up AT_HWCAP and AT_PLATFORM
Historically the code to set up AT_HWCAP and AT_PLATFORM was only built
for 32bit x86 as it was intermingled with the vDSO passthrough code.

Now that vDSO passthrough has been removed, always pass through AT_HWCAP
and AT_PLATFORM.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20251028-uml-remove-32bit-pseudo-vdso-v1-10-e930063eff5f@weissschuh.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-11-06 13:02:34 +01:00
Thomas Weißschuh
117e796fc5 x86/um: Remove FIXADDR_USER_START and FIXADDR_USE_END
There are no users left.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20251028-uml-remove-32bit-pseudo-vdso-v1-9-e930063eff5f@weissschuh.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-11-06 13:02:34 +01:00
Thomas Weißschuh
f20e32ffda um: Remove __access_ok_vsyscall()
FIXADDR_USER_START and FIXADDR_USER_END are now always zero.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20251028-uml-remove-32bit-pseudo-vdso-v1-8-e930063eff5f@weissschuh.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-11-06 13:02:34 +01:00
Thomas Weißschuh
880f615bf9 um: Remove redundant range check from __access_ok_vsyscall()
The only caller __access_ok() is already doing the same check through
__addr_range_nowrap().

Remove the redundant check.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20251028-uml-remove-32bit-pseudo-vdso-v1-7-e930063eff5f@weissschuh.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-11-06 13:02:33 +01:00
Thomas Weißschuh
78fdfc9fc4 um: Remove fixaddr_user_init()
With the removal of the vDSO passthrough from the host,
FIXADDR_USER_START is always 0 and fixaddr_user_init() is dead code.

Remove it.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20251028-uml-remove-32bit-pseudo-vdso-v1-6-e930063eff5f@weissschuh.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-11-06 13:02:33 +01:00
Thomas Weißschuh
dbd7cf408a x86/um: Drop gate area handling
With the removal of the vDSO passthrough from the host,
FIXADDR_USER_START is always 0 and the gate area setup code is dead.

Remove it.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20251028-uml-remove-32bit-pseudo-vdso-v1-5-e930063eff5f@weissschuh.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-11-06 13:02:33 +01:00
Thomas Weißschuh
70d52694b6 x86/um: Do not inherit vDSO from host
Inheriting the vDSO from the host is problematic. The values read
from the time functions will not be correct for the UML kernel.
Furthermore the start and end of the vDSO are not stable or
detectable by userspace. Specifically the vDSO datapages start
before AT_SYSINFO_EHDR and the vDSO itself is larger than a single page.

This codepath is only used on 32bit x86 UML. In my testing with both
32bit and 64bit hosts the passthrough functionality has always been
disabled anyways due to the checks against envp in scan_elf_aux().

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20251028-uml-remove-32bit-pseudo-vdso-v1-4-e930063eff5f@weissschuh.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-11-06 13:02:33 +01:00
Thomas Weißschuh
83b4b44a2b um: Split out default elf_aux_hwcap
Setting all auxiliary vector values to default values if one of them
was not provided by the host will discard perfectly fine values.

Remove the elf_aux_platform fallback from the vDSO ones.
As zero is the correct fallback anyways, don't create a new conditional.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20251028-uml-remove-32bit-pseudo-vdso-v1-3-e930063eff5f@weissschuh.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-11-06 13:02:33 +01:00
Thomas Weißschuh
c1b0775151 x86/um: Move ELF_PLATFORM fallback to x86-specific code
The generic UM code should not have references to x86-specific value.

Move the fallback into the x86-specific header.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20251028-uml-remove-32bit-pseudo-vdso-v1-2-e930063eff5f@weissschuh.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-11-06 13:02:33 +01:00
Thomas Weißschuh
74d438872d um: Split out default elf_aux_platform
Setting all auxiliary vector values to default values if one of them
was not provided by the host will discard perfectly fine values.

Move the elf_aux_platform fallback to its own conditional.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20251028-uml-remove-32bit-pseudo-vdso-v1-1-e930063eff5f@weissschuh.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-11-06 13:02:32 +01:00
Avadhut Naik
6a85796915 EDAC/amd64: Remove NUM_CONTROLLERS macro
Currently, the NUM_CONTROLLERS macro is used to limit the amount of memory
controllers (UMCs) available per node. The number of UMCs available per node,
however, is already cached by the max_mcs variable of struct amd64_pvt.

Allocate the relevant data structures dynamically using the variable instead
of static allocation through the macro.

The max_mcs variable is used for legacy systems too. These systems have a max
of 2 controllers. Since the default value of max_mcs, set in per_family_init(),
is 2, these legacy systems are also covered.

Signed-off-by: Avadhut Naik <avadhut.naik@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/20251106015727.1987246-1-avadhut.naik@amd.com
2025-11-06 12:51:33 +01:00
Vincent Knecht
b4fbb13db8 media: qcom: camss: Add support for MSM8939
The camera subsystem for the MSM8939 is the same as MSM8916 except with
3 CSID instead of 2, and some higher clock rates.

As a quirk, this SoC needs writing values to 2 VFE VBIF registers
(see downstream msm8939-camera.dtsi vbif-{regs,settings} properties).
This fixes black stripes across sensor and garbage in CSID TPG outputs.

Add support for the MSM8939 camera subsystem.

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: André Apitzsch <git@apitzsch.eu>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 12:43:56 +01:00
Vincent Knecht
f0e8ffb46b media: qcom: camss: vfe: Add VBIF setting support
Some devices need writing values to VFE VBIF registers.
Add helper functions to do this.

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: André Apitzsch <git@apitzsch.eu>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 12:43:56 +01:00
Vincent Knecht
2f1ff4e132 media: dt-bindings: Add qcom,msm8939-camss
Add bindings for qcom,msm8939-camss in order to support the camera
subsystem for MSM8939.

Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
[André: Make order of items the same as in 8916]
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: André Apitzsch <git@apitzsch.eu>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 12:43:56 +01:00
Vladimir Zapolskiy
c33f7e61a1 media: qcom: camss: Add CSIPHY 2.2.0 lane configuration for SM8650
Add a configuration for all CSI lanes into D-PHY bus mode on Qualcomm
SM8650 CAMSS CSIPHY IPs.

Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-QRD
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 12:43:56 +01:00
Vladimir Zapolskiy
6a0b9d3f11 media: qcom: camss: Add Qualcomm SM8650 CAMSS support
Add the basic support of CAMSS IP on Qualcomm SM8650 SoC powered boards.

SM8650 CAMSS provides:
- 6 x CSIPHY,
- 3 x CSID, 2 x CSID Lite,
- 3 x VFE, 2 x VFE Lite.

Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-QRD
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 12:43:56 +01:00
Vladimir Zapolskiy
bbad9ae1cc dt-bindings: media: Describe Qualcomm SM8650 CAMSS IP
Add device tree bindings for Qualcomm SM8650 camera subsystem.

Qualcomm SM8650 CAMSS IP contains the next subdevices:
* 6 x CSIPHY,
* 3 x CSID, 2 x CSID Lite,
* 3 x IFE, 2 x IFE Lite.

Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-QRD
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 12:43:55 +01:00
Hangxiang Ma
ec697196d6 media: qcom: camss: Enable setting the rate to camnoc_rt_axi clock
On hardware architectures where a single CAMNOC module is split into
two, one for each of the real time (RT) and non real time (NRT) modules
within camera sub system, processing VFE output over the AXI bus
requires enabling and setting the appropriate clock rate for the RT
CAMNOC. This change lays the groundwork for supporting such
configurations.

Signed-off-by: Hangxiang Ma <hangxiang.ma@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Vijay Kumar Tumati <vijay.tumati@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 12:43:55 +01:00
Hangxiang Ma
d5479f002f media: qcom: camss: Use a macro to specify the initial buffer count
Replace the hardcoded buffer count value with a macro to enable
operating on these buffers elsewhere in the CAMSS driver based on this
count. Some of the hardware architectures require deferring the AUP and
REG update until after the CSID configuration and this macro is expected
to be useful in such scenarios.

Signed-off-by: Hangxiang Ma <hangxiang.ma@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 12:43:55 +01:00
Johan Hovold
c38d1d7033 media: qcom: camss: drop unused module alias
The driver has never supported anything but OF probing so drop the
unused platform module alias.

Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 12:43:55 +01:00
Krzysztof Kozlowski
52862dc989 media: dt-bindings: qcom,x1e80100-camss: Fix typo in CSIPHY supply description
Correct description of the CSIPHY 1.2 V supply
("vdd-csiphy-1p2-supply"), because it supplies 1.2 V, confirmed with DTS
on the mailing lists.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Acked-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 12:43:55 +01:00
Jie Gan
14ae052f79 coresight: tpdm: add static tpdm support
The static TPDM function as a dummy source, however, it is essential
to enable the port connected to the TPDA and configure the element size.
Without this, the TPDA cannot correctly receive trace data from the
static TPDM. Since the static TPDM does not require MMIO mapping to
access its registers, a clock controller is not mandatory for its
operation.

Signed-off-by: Jie Gan <jie.gan@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251028-add_static_tpdm_support-v4-2-84e21b98e727@oss.qualcomm.com
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
2025-11-06 11:37:05 +00:00
Jie Gan
8d204b6f1f dt-bindings: arm: document the static TPDM compatible
The static TPDM device is intended for sources that do not require MMIO
mapping. Its compatible string should be documented clearly, along with
an example illustrating how to define a static TPDM node in the DT.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Jie Gan <jie.gan@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251028-add_static_tpdm_support-v4-1-84e21b98e727@oss.qualcomm.com
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
2025-11-06 11:37:05 +00:00
Avadhut Naik
e9abd990ae EDAC/amd64: Generate ctl_name string at runtime
Currently, the ctl_name string is statically assigned based on the family and
model of the SOC when the amd64_edac module is loaded.

The same, however, is not exactly needed as the string can be generated and
assigned at runtime through scnprintf().

Remove all static assignments and generate the string at runtime. Also,
cleanup the switch cases which became defunct and consolidate identical cases.

Signed-off-by: Avadhut Naik <avadhut.naik@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/20251106015727.1987246-1-avadhut.naik@amd.com
2025-11-06 12:35:59 +01:00
Mark Brown
1044821176
Add support MT6316/6363/MT6373 PMICs regulators
Merge series from AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>:

This series adds support for three new MediaTek PMICs: MT6316, MT6363
and MT6373 and their variants - used in board designs featuring the
MediaTek MT8196 Chromebook SoC, or the MT6991 Dimensity 9400 Smartphone
SoC.

In particular, MT6316 is a regulator, but the MT6363 and MT6373 PMICs
are multi-function devices, as they have and expose multiple sub-devices;
moreover, some of those also contain an interrupt controller, managing
internal IPs interrupts: for those, a chained interrupt handler is
registered, which parent is the SPMI controller itself.

This series adds support for all of the MT6316 regulator variants and
for MT6363, MT6373 SPMI PMICs and their interrupt controller.
2025-11-06 11:34:53 +00:00
Mark Brown
7a381e373a
ASoC: qcom: q6dsp: fixes and updates
Merge series from Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>:

This patchset has 4 fixes and some enhancements to the Elite DSP driver
support.
Fixes includes
	- setting correct flags for expected behaviour of appl_ptr
	- fix closing of copp instances
	- fix buffer alignment.
	- fix state checks before closing asm stream
Enhancements include:
	- adding q6asm_get_hw_pointer and ack callback support
	- simplify code via __free(kfree) mechanism.
	- use spinlock guards
	- few cleanups discovered during doing above 2.

There is another set of updates comming soon, which will add support
for early memory mapping and few more modules support in audioreach.
2025-11-06 11:34:45 +00:00
Peter Zijlstra
4cb5ac2626 futex: Optimize per-cpu reference counting
Shrikanth noted that the per-cpu reference counter was still some 10%
slower than the old immutable option (which removes the reference
counting entirely).

Further optimize the per-cpu reference counter by:

 - switching from RCU to preempt;
 - using __this_cpu_*() since we now have preempt disabled;
 - switching from smp_load_acquire() to READ_ONCE().

This is all safe because disabling preemption inhibits the RCU grace
period exactly like rcu_read_lock().

Having preemption disabled allows using __this_cpu_*() provided the
only access to the variable is in task context -- which is the case
here.

Furthermore, since we know changing fph->state to FR_ATOMIC demands a
full RCU grace period we can rely on the implied smp_mb() from that to
replace the acquire barrier().

This is very similar to the percpu_down_read_internal() fast-path.

The reason this is significant for PowerPC is that it uses the generic
this_cpu_*() implementation which relies on local_irq_disable() (the
x86 implementation relies on it being a single memop instruction to be
IRQ-safe). Switching to preempt_disable() and __this_cpu*() avoids
this IRQ state swizzling. Also, PowerPC needs LWSYNC for the ACQUIRE
barrier, not having to use explicit barriers safes a bunch.

Combined this reduces the performance gap by half, down to some 5%.

Fixes: 760e6f7bef ("futex: Remove support for IMMUTABLE")
Reported-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Tested-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://patch.msgid.link/20251106092929.GR4067720@noisy.programming.kicks-ass.net
2025-11-06 12:30:54 +01:00
Aaron Lu
956dfda6a7 sched/fair: Prevent cfs_rq from being unthrottled with zero runtime_remaining
When a cfs_rq is to be throttled, its limbo list should be empty and
that's why there is a warn in tg_throttle_down() for non empty
cfs_rq->throttled_limbo_list.

When running a test with the following hierarchy:

          root
        /      \
        A*     ...
     /  |  \   ...
        B
       /  \
      C*

where both A and C have quota settings, that warn on non empty limbo list
is triggered for a cfs_rq of C, let's call it cfs_rq_c(and ignore the cpu
part of the cfs_rq for the sake of simpler representation).

Debug showed it happened like this:
Task group C is created and quota is set, so in tg_set_cfs_bandwidth(),
cfs_rq_c is initialized with runtime_enabled set, runtime_remaining
equals to 0 and *unthrottled*. Before any tasks are enqueued to cfs_rq_c,
*multiple* throttled tasks can migrate to cfs_rq_c (e.g., due to task
group changes). When enqueue_task_fair(cfs_rq_c, throttled_task) is
called and cfs_rq_c is in a throttled hierarchy (e.g., A is throttled),
these throttled tasks are directly placed into cfs_rq_c's limbo list by
enqueue_throttled_task().

Later, when A is unthrottled, tg_unthrottle_up(cfs_rq_c) enqueues these
tasks. The first enqueue triggers check_enqueue_throttle(), and with zero
runtime_remaining, cfs_rq_c can be throttled in throttle_cfs_rq() if it
can't get more runtime and enters tg_throttle_down(), where the warning
is hit due to remaining tasks in the limbo list.

I think it's a chaos to trigger throttle on unthrottle path, the status
of a being unthrottled cfs_rq can be in a mixed state in the end, so fix
this by granting 1ns to cfs_rq in tg_set_cfs_bandwidth(). This ensures
cfs_rq_c has a positive runtime_remaining when initialized as unthrottled
and cannot enter tg_unthrottle_up() with zero runtime_remaining.

Also, update outdated comments in tg_throttle_down() since
unthrottle_cfs_rq() is no longer called with zero runtime_remaining.
While at it, remove a redundant assignment to se in tg_throttle_down().

Fixes: e1fad12dcb ("sched/fair: Switch to task based throttle model")
Reviewed-By: Benjamin Segall <bsegall@google.com>
Suggested-by: Benjamin Segall <bsegall@google.com>
Signed-off-by: Aaron Lu <ziqianlu@bytedance.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: K Prateek Nayak <kprateek.nayak@amd.com>
Tested-by: K Prateek Nayak <kprateek.nayak@amd.com>
Tested-by: Hao Jia <jiahao1@lixiang.com>
Link: https://patch.msgid.link/20251030032755.560-1-ziqianlu@bytedance.com
2025-11-06 12:30:52 +01:00
Gary Yang
1f0de24c54 arm64: dts: cix: Add pinctrl nodes for sky1
Add the pin-controller nodes for Sky1 platform.

Signed-off-by: Gary Yang <gary.yang@cixtech.com>
Link: https://lore.kernel.org/r/20251021070410.3585997-4-gary.yang@cixtech.com
Signed-off-by: Peter Chen <peter.chen@cixtech.com>
2025-11-06 19:26:53 +08:00
Jun Guo
74178bb23c arm64: dts: cix: add DT nodes for SPI
Add the device tree node for the spi controller of the CIX SKY1 SoC.

Signed-off-by: Jun Guo <jun.guo@cixtech.com>
Link: https://lore.kernel.org/r/20250919013118.853078-1-jun.guo@cixtech.com
Signed-off-by: Peter Chen <peter.chen@cixtech.com>
2025-11-06 19:26:53 +08:00
Takashi Iwai
82420bd4e1 ALSA: hda/hdmi: Fix breakage at probing nvhdmi-mcp driver
After restructuring and splitting the HDMI codec driver code, each
HDMI codec driver contains the own build_controls and build_pcms ops.
A copy-n-paste error put the wrong entries for nvhdmi-mcp driver; both
build_controls and build_pcms are swapped.  Unfortunately both
callbacks have the very same form, and the compiler didn't complain
it, either.  This resulted in a NULL dereference because the PCM
instance hasn't been initialized at calling the build_controls
callback.

Fix it by passing the proper entries.

Fixes: ad781b550f ("ALSA: hda/hdmi: Rewrite to new probe method")
Cc: <stable@vger.kernel.org>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=220743
Link: https://patch.msgid.link/20251106104647.25805-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2025-11-06 11:49:35 +01:00
Zhang Chujun
79d062bdef selftest/alsa: correct grammar in conf_get_bool error string
The phrase "an bool" is grammatically incorrect; it should be
"a bool".

Signed-off-by: Zhang Chujun <zhangchujun@cmss.chinamobile.com>

Link: https://patch.msgid.link/20251106055819.1996-1-zhangchujun@cmss.chinamobile.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2025-11-06 11:47:36 +01:00
Bagas Sanjaya
3ca8b2668c drm/ttm: Fix @alloc_flags description
Stephen Rothwell reports htmldocs warnings when merging drm-misc tree:

Documentation/gpu/drm-mm:40: include/drm/ttm/ttm_device.h:225: ERROR: Unknown target name: "ttm_allocation". [docutils]
Documentation/gpu/drm-mm:43: drivers/gpu/drm/ttm/ttm_device.c:202: ERROR: Unknown target name: "ttm_allocation". [docutils]
Documentation/gpu/drm-mm:73: include/drm/ttm/ttm_pool.h:68: ERROR: Unknown target name: "ttm_allocation_pool". [docutils]
Documentation/gpu/drm-mm:76: drivers/gpu/drm/ttm/ttm_pool.c:1070: ERROR: Unknown target name: "ttm_allocation_pool". [docutils]

Fix these by adding missing wildcard on TTM_ALLOCATION_* and
TTM_ALLOCATION_POOL_* in @alloc_flags description.

Fixes: 0af5b6a8f8 ("drm/ttm: Replace multiple booleans with flags in pool init")
Fixes: 77e19f8d32 ("drm/ttm: Replace multiple booleans with flags in device init")
Fixes: 402b3a8650 ("drm/ttm: Add an allocation flag to propagate -ENOSPC on OOM")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/linux-next/20251105161838.55b962a3@canb.auug.org.au/
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Acked-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>
Link: https://lore.kernel.org/r/20251106005217.14026-1-bagasdotme@gmail.com
2025-11-06 10:35:47 +00:00
Wangao Wang
ad699fa78b media: iris: Add sanity check for stop streaming
Add sanity check in iris_vb2_stop_streaming. If inst->state is
already IRIS_INST_ERROR, we should skip the stream_off operation
because it would still send packets to the firmware.

In iris_kill_session, inst->state is set to IRIS_INST_ERROR and
session_close is executed, which will kfree(inst_hfi_gen2->packet).
If stop_streaming is called afterward, it will cause a crash.

Fixes: 11712ce70f ("media: iris: implement vb2 streaming ops")
Cc: stable@vger.kernel.org
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>
Signed-off-by: Wangao Wang <wangao.wang@oss.qualcomm.com>
Reviewed-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com>
[bod: remove qcom from patch title]
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 11:18:10 +01:00
Dikshita Agarwal
aec75e355c media: iris: Refine internal buffer reconfiguration logic for resolution change
Improve the condition used to determine when input internal buffers need
to be reconfigured during streamon on the capture port. Previously, the
check relied on the INPUT_PAUSE sub-state, which was also being set
during seek operations. This led to input buffers being queued multiple
times to the firmware, causing session errors due to duplicate buffer
submissions.

This change introduces a more accurate check using the FIRST_IPSC and
DRC sub-states to ensure that input buffer reconfiguration is triggered
only during resolution change scenarios, such as streamoff/on on the
capture port. This avoids duplicate buffer queuing during seek
operations.

Fixes: c1f8b2cc72 ("media: iris: handle streamoff/on from client in dynamic resolution change")
Cc: stable@vger.kernel.org
Reported-by: Val Packett <val@packett.cool>
Closes: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/4700
Signed-off-by: Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>
Reviewed-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 11:18:10 +01:00
Laurent Pinchart
e81b60c4a8 media: iris: Constify iris_v4l2_file_ops
The iris_v4l2_file_ops structure is never modified. Make it const.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
[bod: drop qcom from patch title for consistency with other patches]
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 11:18:10 +01:00
Dmitry Baryshkov
542e3540dd media: iris: enable support for SC7280 platform
As a part of migrating code from the old Venus driver to the new Iris
one, add support for the SC7280 platform. It is very similar to SM8250,
but it (currently) uses no reset controls (there is an optional
GCC-generated reset, it will be added later) and no AON registers
region. Extend the VPU ops to support optional clocks and skip the AON
shutdown for this platform.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com>
Reviewed-by: Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 11:18:10 +01:00
Dmitry Baryshkov
3b72f5e206 media: iris: rename sm8250 platform file to gen1
In preparation to adding more Gen1 platforms, which will share a
significant amount of data, rename the SM8250 platform file to
iris_platform_gen1.c.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>
Reviewed-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 11:18:10 +01:00
Dmitry Baryshkov
69dfada4c9 media: iris: remove duplication between generic gen2 data and qcs8300
Now as we have removed PIPE value from inst_fw_caps_dec there should be
no difference between inst_fw_caps of QCS8300 and SM8550+. Drop the
QCS8300-specific tables and use generic one instead.

The differences between QCS8300 and SM8550 data comes from a
non-conflict merge of commit d22037f3fd ("media: iris: Set platform
capabilities to firmware for encoder video device") (which added .set
callbacks), and commit 6bdfa3f947 ("media: iris: Add platform-specific
capabilities for encoder video device") (which added QCS8300 data, but
not the callbacks).

Reviewed-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com>
Reviewed-by: Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 11:18:09 +01:00
Dmitry Baryshkov
6c67d1cf18 media: iris: stop encoding PIPE value into fw_caps
The value of the PIPE property depends on the number of pipes available
on the platform and is frequently the only difference between several
fw_caps. In order to reduce duplication, use num_vpp_pipe from the
iris_platform_data rather than hardcoding the value into the fw_cap.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com>
Reviewed-by: Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
[bod: duplciation -> duplication]
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 11:18:09 +01:00
Dmitry Baryshkov
7a02a8b984 media: iris: turn platform data into constants
Make all struct iris_platform_data instances constant, they are not
modified at runtime.

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>
Reviewed-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 11:18:09 +01:00
Dmitry Baryshkov
e5894eeefd media: iris: turn platform caps into constants
Make all struct platform_inst_fw_cap instances constant, they are not
modified at runtime.

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>
Reviewed-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 11:18:09 +01:00
Dikshita Agarwal
456c99da41 media: iris: Add support for QC08C format for encoder
Introduce handling for the QC08C format in the encoder. QC08C
format is NV12 with UBWC compression. Update format checks and
configuration to enable encoding to QC08C streams.

Signed-off-by: Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>
Reviewed-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 11:18:09 +01:00
Dikshita Agarwal
cfd71b14b0 media: iris: Add support for QC08C format for decoder
Introduce handling for the QC08C format in the decoder. QC08C format is
NV12 with UBWC compression. Update format checks and configuration to
enable decoding of QC08C streams.

Signed-off-by: Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>
Reviewed-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 11:18:09 +01:00