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1,427,869 commits

Author SHA1 Message Date
Ian Rogers
6bd6c5ef6c perf jevents: Add load event JSON to verify and allow fallbacks
Add a LoadEvents function that loads all event JSON files in a
directory.

In the Event constructor ensure all events are defined in the event JSON
except for legacy events like "cycles".

If the initial event isn't found then legacy_event1 is used, and if that
isn't found legacy_event2 is used.

This allows a single Event to have multiple event names as models will
often rename the same event over time. If the event doesn't exist an
exception is raised.

So that references to metrics can be added, add the MetricRef
class. This doesn't validate as an event name and so provides an
escape hatch for metrics to refer to each other.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Benjamin Gray <bgray@linux.ibm.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Edward Baker <edward.baker@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Leo Yan <leo.yan@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Xu Yang <xu.yang_2@nxp.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-28 15:18:44 -03:00
Ian Rogers
19eab0efe7 perf jevents: Build support for generating metrics from python
Generate extra-metrics.json and extra-metricgroups.json from python
architecture specific scripts. The metrics themselves will be added in
later patches.

If a build takes place in tools/perf/ then extra-metrics.json and
extra-metricgroups.json are generated in that directory and so added
to .gitignore.

If there is an OUTPUT directory then the tools/perf/pmu-events/arch
files are copied to it so the generated extra-metrics.json and
extra-metricgroups.json can be added/generated there.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Benjamin Gray <bgray@linux.ibm.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Edward Baker <edward.baker@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Leo Yan <leo.yan@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Xu Yang <xu.yang_2@nxp.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-28 15:18:44 -03:00
Leo Yan
7a0ba38911 perf: Remove redundant kernel.h include
Now that the bitfield dependency is resolved, the explicit inclusion of
kernel.h is no longer needed.

Remove the redundant include.

Signed-off-by: Leo Yan <leo.yan@arm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-28 15:18:44 -03:00
Leo Yan
a537c0da16 tools: Fix bitfield dependency failure
A perf build failure was reported by Thomas Voegtle on stable kernel
v6.6.120:

    CC      tests/sample-parsing.o
    CC      util/intel-pt-decoder/intel-pt-pkt-decoder.o
    CC      util/perf-regs-arch/perf_regs_csky.o
    CC      util/arm-spe-decoder/arm-spe-pkt-decoder.o
    CC      util/perf-regs-arch/perf_regs_loongarch.o
  In file included from util/arm-spe-decoder/arm-spe-pkt-decoder.h:10,
                   from util/arm-spe-decoder/arm-spe-pkt-decoder.c:14:
  /local/git/linux-stable-rc/tools/include/linux/bitfield.h: In function ‘le16_encode_bits’:
  /local/git/linux-stable-rc/tools/include/linux/bitfield.h:166:31: error: implicit declaration of
  function ‘cpu_to_le16’; did you mean ‘htole16’? [-Werror=implicit-function-declaration]
    ____MAKE_OP(le##size,u##size,cpu_to_le##size,le##size##_to_cpu) \
                                 ^~~~~~~~~
  /local/git/linux-stable-rc/tools/include/linux/bitfield.h:149:9: note: in definition of macro
  ‘____MAKE_OP’
    return to((v & field_mask(field)) * field_multiplier(field)); \
           ^~
  /local/git/linux-stable-rc/tools/include/linux/bitfield.h:170:1: note: in expansion of macro
  ‘__MAKE_OP’
   __MAKE_OP(16)

Fix this by including linux/kernel.h, which provides the required
definitions.

The issue was not found on the mainline due to the relevant C files have
included kernel.h.  It'd be good to merge this change on mainline
as well for robustness.

Closes: https://lore.kernel.org/stable/3a44500b-d7c8-179f-61f6-e51cb50d3512@lio96.de/
Fixes: 64d86c03e1 ("perf arm-spe: Extend branch operations")
Reported-by: Hamza Mahfooz <hamzamahfooz@linux.microsoft.com>
Reported-by: Thomas Voegtle <tv@lio96.de>
Signed-off-by: Leo Yan <leo.yan@arm.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ian Rogers <irogers@google.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Leo Yan <leo.yan@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
To: Sasha Levin <sashal@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-28 15:18:44 -03:00
Swapnil Sapkal
34b0a58eef perf sched stats: Fixes in man page
Fix the incorrect description of the schedstats report. Also fix the
spelling errors in man page.

Fixes: 800af362d6 ("perf sched stats: Add details in man page")
Reviewed-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Reported-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anubhav Shelat <ashelat@redhat.com>
Cc: Chen Yu <yu.c.chen@intel.com>
Cc: Gautham Shenoy <gautham.shenoy@amd.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-28 15:18:41 -03:00
Swapnil Sapkal
f7dc496453 perf sched stats: Define macro for SEP_LEN
Define a macro for separator length of the line in perf sched stats
report.

Reviewed-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anubhav Shelat <ashelat@redhat.com>
Cc: Chen Yu <yu.c.chen@intel.com>
Cc: Gautham Shenoy <gautham.shenoy@amd.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-28 15:18:39 -03:00
Swapnil Sapkal
7284dc7e19 perf sched stats: correct spelling of function name
Replace store_schedtstat_cpu_diff() with store_schedstat_cpu_diff()

Reviewed-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anubhav Shelat <ashelat@redhat.com>
Cc: Chen Yu <yu.c.chen@intel.com>
Cc: Gautham Shenoy <gautham.shenoy@amd.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-28 15:18:35 -03:00
Swapnil Sapkal
b03b95b4d7 perf sched stats: Add NULL check for cd_map
In perf_sched__schedstat_live(), build_cpu_domain_map() returns the
pointer to cpu_domain_map which can also be NULL.

Add NULL check for the same to avoid NULL pointer dereference.

Fixes: 00093b3133 ("perf sched stats: Add support for live mode")
Reviewed-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anubhav Shelat <ashelat@redhat.com>
Cc: Chen Yu <yu.c.chen@intel.com>
Cc: Gautham Shenoy <gautham.shenoy@amd.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-28 15:18:31 -03:00
Swapnil Sapkal
05134d1537 perf util: Fix NULL check in cpumask_to_cpulist()
The function cpumask_to_cpulist() allocates memory with calloc() and
stores the result in 'bm', but then incorrectly checks 'cpumask' for
NULL instead of 'bm'.

This means that if the allocation fails, the function will dereference a
NULL pointer when trying to access 'bm'.

Fix the check to test the correct variable 'bm'.

Fixes: d40c68a49f ("perf header: Support CPU DOMAIN relation info")
Reviewed-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anubhav Shelat <ashelat@redhat.com>
Cc: Chen Yu <yu.c.chen@intel.com>
Cc: Gautham Shenoy <gautham.shenoy@amd.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-28 15:18:24 -03:00
Swapnil Sapkal
2a85bbaed0 perf header: Replace hardcoded max cpus by MAX_NR_CPUS
cpumask and cpulist from cpu-domain header have hardcoded max_cpus value
of 1024.

Current systems have more cpus than this value. Replace it with
MAX_NR_CPUS.

Also define a macro to represent domain name length.

Fixes: d40c68a49f ("perf header: Support CPU DOMAIN relation info")
Reported-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Reviewed-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anubhav Shelat <ashelat@redhat.com>
Cc: Chen Yu <yu.c.chen@intel.com>
Cc: Gautham Shenoy <gautham.shenoy@amd.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-28 15:18:11 -03:00
Sumit Gupta
4a1cf5ed51 cpufreq: CPPC: Add generic helpers for sysfs show/store
Add generic helper functions for u64 sysfs attributes that follow the
common pattern of calling CPPC get/set APIs:
 - cppc_cpufreq_sysfs_show_u64(): reads value and handles -EOPNOTSUPP
 - cppc_cpufreq_sysfs_store_u64(): parses input and calls set function

Add CPPC_CPUFREQ_ATTR_RW_U64() macro to generate show/store functions
using these helpers, reducing boilerplate for simple attributes.

Convert auto_act_window and energy_performance_preference_val to use
the new macro.

No functional changes.

Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
Reviewed-by: Lifeng Zheng <zhenglifeng1@huawei.com>
[ rjw: Retained empty code line after a conditional ]
Link: https://patch.msgid.link/20260120145623.2959636-2-sumitg@nvidia.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2026-01-28 19:10:50 +01:00
Arnd Bergmann
2120005213 More Qualcomm Arm32 DeviceTree updated for v6.20
MSM8226 is switched to generic RPMPD_ indices, to allow dropping the
 duplicate platform-specific constants.
 
 On MSM8960 two additional GSBIs and I2C controllers are introduced.
 Accelerometer, Magnetometer, NFC and Light/Proximity sensors are then
 enabled on the Samsung Galaxy Express.
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Merge tag 'qcom-arm32-for-6.20-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/dt

More Qualcomm Arm32 DeviceTree updated for v6.20

MSM8226 is switched to generic RPMPD_ indices, to allow dropping the
duplicate platform-specific constants.

On MSM8960 two additional GSBIs and I2C controllers are introduced.
Accelerometer, Magnetometer, NFC and Light/Proximity sensors are then
enabled on the Samsung Galaxy Express.

* tag 'qcom-arm32-for-6.20-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  ARM: dts: qcom: switch to RPMPD_* indices
  ARM: dts: qcom: msm8960: expressatt: Add Accelerometer
  ARM: dts: qcom: msm8960: expressatt: Add Magnetometer
  ARM: dts: qcom: msm8960: expressatt: Add NFC
  ARM: dts: qcom: msm8960: expressatt: Add Light/Proximity Sensor
  ARM: dts: qcom: msm8960: Add GSBI2 & GSBI7

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 19:09:20 +01:00
Arnd Bergmann
a1f4991db6 More Qualcomm Arm64 DeviceTree updates for v6.20
Enable ADSP FastRPC and add missing GPU memory regions on Agatti.
 Also add the missing GPU regions on SM6115.
 
 Describe the application subsystem watchdog on Hamoa and enable this in
 the EL2 configurations.
 
 Add the camera control interface (CCI) I2C controller on MSM8953, and
 describe the camera regulators and the camera EEPROM on Fairphone FP3.
 
 Specify clock frequency for the i2c4 bus on OnePlus 6, to silence the
 warnings about missing frequency definition.
 
 Add FastRPC and associated heap memory, as well as Coresight, on SM8750
 
 Switch a variety of platforms to use the generic RPMPD_ constants,
 instead of target-specific duplicated, to allow us to drop these from
 the header files.
 
 Drop the invalid opp-shared on the QUP OPP table for Talos.
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Merge tag 'qcom-arm64-for-6.20-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/dt

More Qualcomm Arm64 DeviceTree updates for v6.20

Enable ADSP FastRPC and add missing GPU memory regions on Agatti.
Also add the missing GPU regions on SM6115.

Describe the application subsystem watchdog on Hamoa and enable this in
the EL2 configurations.

Add the camera control interface (CCI) I2C controller on MSM8953, and
describe the camera regulators and the camera EEPROM on Fairphone FP3.

Specify clock frequency for the i2c4 bus on OnePlus 6, to silence the
warnings about missing frequency definition.

Add FastRPC and associated heap memory, as well as Coresight, on SM8750

Switch a variety of platforms to use the generic RPMPD_ constants,
instead of target-specific duplicated, to allow us to drop these from
the header files.

Drop the invalid opp-shared on the QUP OPP table for Talos.

* tag 'qcom-arm64-for-6.20-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  arm64: dts: qcom: sm6115: Add CX_MEM/DBGC GPU regions
  arm64: dts: qcom: agatti: Add CX_MEM/DBGC GPU regions
  arm64: dts: qcom: sm8750: add ADSP fastrpc-compute-cb nodes
  arm64: dts: qcom: sm8750: add memory node for adsp fastrpc
  arm64: dts: qcom: switch to RPMPD_* indices
  arm64: dts: qcom: oneplus-enchilada: Specify i2c4 clock frequency
  arm64: dts: qcom: sm6350: Add clocks for aggre1 & aggre2 NoC
  arm64: dts: qcom: agatti: enable FastRPC on the ADSP
  arm64: qcom: dts: sm8750: add coresight nodes
  arm64: dts: qcom: talos: Drop opp-shared from QUP OPP table
  arm64: dts: qcom: x1-el2: Enable the APSS watchdog
  arm64: dts: qcom: hamoa: Add the APSS watchdog
  dt-bindings: watchdog: Document X1E80100 compatible
  arm64: dts: qcom: sdm632-fairphone-fp3: Enable CCI and add EEPROM
  arm64: dts: qcom: sdm632-fairphone-fp3: Add camera fixed regulators
  arm64: dts: qcom: msm8953: Add CCI nodes
  arm64: dts: qcom: msm8953: Re-sort tlmm pinctrl states

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 19:08:03 +01:00
Arnd Bergmann
67fea39d2c New boards: Anberic RG-DS game console, Radxa CM3J module + baseboard
for the Rpi CM4 IO board, QNAP TS133 from the RK3568 NAS series.
 
 2 display outputs for the Lion board (old RK3368), TPS65185 pmic for the
 PineNote and fixes for the PCIe ranges on both RK356x and RK3588.
 These came quite late, so I wanted to give them the time till 6.20-rc1
 and have them migrate to stable-kernels afterwards.
 
 The rest is small stuff on a number of boards wrt gpios and compatibles.
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Merge tag 'v6.20-rockchip-dts64-2' of https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into soc/dt

New boards: Anberic RG-DS game console, Radxa CM3J module + baseboard
for the Rpi CM4 IO board, QNAP TS133 from the RK3568 NAS series.

2 display outputs for the Lion board (old RK3368), TPS65185 pmic for the
PineNote and fixes for the PCIe ranges on both RK356x and RK3588.
These came quite late, so I wanted to give them the time till 6.20-rc1
and have them migrate to stable-kernels afterwards.

The rest is small stuff on a number of boards wrt gpios and compatibles.

* tag 'v6.20-rockchip-dts64-2' of https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip: (25 commits)
  arm64: dts: rockchip: Fix rk3588 PCIe range mappings
  arm64: dts: rockchip: Fix rk356x PCIe range mappings
  arm64: dts: rockchip: Add Anbernic RG-DS
  dt-bindings: input: touchscreen: goodix: Add "panel" property
  dt-bindings: arm: rockchip: Add Anbernic RG-DS
  arm64: dts: rockchip: Explicitly request UFS reset pin on RK3576
  arm64: dts: rockchip: Add TPS65185 for PineNote
  arm64: dts: rockchip: Do not enable hdmi_sound node on Pinebook Pro
  arm64: dts: rockchip: Fix imx258 variant on pinephone pro
  arm64: dts: rockchip: Add the Video-Demo overlay for Lion Haikou
  arm64: dts: rockchip: Enable pwm1 on rk3368-lion-haikou
  arm64: dts: rockchip: Enable HDMI output on RK3368-Lion-Haikou
  arm64: dts: rockchip: Add HDMI node to RK3368
  arm64: dts: rockchip: Use phandle for i2c_lvds_blc on rk3368-lion haikou
  arm64: dts: rockchip: Fix SD card support for RK3576 Nanopi R76s
  arm64: dts: rockchip: Fix SD card support for RK3576 EVB1
  arm64: dts: rockchip: Add Radxa CM3J on RPi CM4 IO Board
  arm64: dts: rockchip: Add Radxa CM3J
  dt-bindings: arm: rockchip: Add Radxa CM3J on RPi CM4 IO Board
  arm64: dts: rockchip: Make eeprom read-only for Radxa ROCK 3C/5A/5C
  ...

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 19:05:34 +01:00
Arnd Bergmann
a46cb1c79f Removal of the obsolete mshc aliases from RK3036.
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Merge tag 'v6.20-rockchip-dts32-2' of https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into soc/dt

Removal of the obsolete mshc aliases from RK3036.

* tag 'v6.20-rockchip-dts32-2' of https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  ARM: dts: rockchip: rk3036: remove mshc aliases

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 19:04:58 +01:00
Arnd Bergmann
72216ba360 - Add OrangePi 6 Plus board
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Merge tag 'cix-dt-binding-v6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/cix into soc/dt

- Add OrangePi 6 Plus board

* tag 'cix-dt-binding-v6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/cix:
  dt-bindings: arm: cix: add OrangePi 6 Plus board

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 18:58:34 +01:00
Arnd Bergmann
2af1017ca6 Microchip AT91 device tree updates for v6.20
This update includes:
 - update the SAMA7D65 flexcom nodes to add the missing i2c, spi, and usart
   child nodes; the flexcom child nodes were also updated with DMA
   properties
 - add basic support for the PCB8385 board, based on LAN966X SoC
 - drop usb_a9g20-dab-mmx.dtsi as it is not used anywhere in the tree
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Merge tag 'at91-dt-6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into soc/dt

Microchip AT91 device tree updates for v6.20

This update includes:
- update the SAMA7D65 flexcom nodes to add the missing i2c, spi, and usart
  child nodes; the flexcom child nodes were also updated with DMA
  properties
- add basic support for the PCB8385 board, based on LAN966X SoC
- drop usb_a9g20-dab-mmx.dtsi as it is not used anywhere in the tree

* tag 'at91-dt-6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
  ARM: dts: microchip: Drop usb_a9g20-dab-mmx.dtsi
  ARM: dts: Add support for pcb8385
  dt-bindings: arm: at91: add lan966 pcb8385 board
  ARM: dts: microchip: sama7d65: add missing flexcom nodes
  ARM: dts: microchip: sama7d65: add fifo-size to usart
  ARM: dts: microchip: sama7d65: add dma properties to usart6

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 18:57:51 +01:00
Arnd Bergmann
52c1a896a9 - add OrangePi 6 Plus board
- one small improvement
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Merge tag 'cix-dt-v6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/cix into soc/dt

- add OrangePi 6 Plus board
- one small improvement

* tag 'cix-dt-v6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/cix:
  arm64: dts: cix: Add OrangePi 6 Plus board support
  arm64: dts: cix: Use lowercase hex

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 18:51:14 +01:00
Arnd Bergmann
d5f4e01e4c mvebu dt64 for 6.20 (part 1)
Add support for Armada 7020 Express Type 7 CPU module board by Marvell, including:
  - COM Express CPU module and carrier board (Marvell DB-98CX85x0)
   - DDR4 memory, 1Gbit OOB Ethernet, 10G KR Ethernet, NAND/SPI flash, PCIe, SATA, USB, and UART interfaces
 Add SoC-specific compatibles for SafeXcel crypto engine on Armada 37xx and CP11x
 Fix regulator type from "regulator-gpio" to "regulator-fixed" where no GPIO control is present
 Add missing GPIO properties for "nxp,pca9536" on cn9131-cf-solidwan
 Fix and clean up pinctrl-names properties and typos
 Add missing "#phy-cells" to "usb-nop-xceiv" nodes
 MAINTAINERS: Add Falcon DB to the list of maintained Marvell Armada dts files
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Merge tag 'mvebu-dt64-6.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu into soc/dt

mvebu dt64 for 6.20 (part 1)

Add support for Armada 7020 Express Type 7 CPU module board by Marvell, including:
 - COM Express CPU module and carrier board (Marvell DB-98CX85x0)
  - DDR4 memory, 1Gbit OOB Ethernet, 10G KR Ethernet, NAND/SPI flash, PCIe, SATA, USB, and UART interfaces
Add SoC-specific compatibles for SafeXcel crypto engine on Armada 37xx and CP11x
Fix regulator type from "regulator-gpio" to "regulator-fixed" where no GPIO control is present
Add missing GPIO properties for "nxp,pca9536" on cn9131-cf-solidwan
Fix and clean up pinctrl-names properties and typos
Add missing "#phy-cells" to "usb-nop-xceiv" nodes
MAINTAINERS: Add Falcon DB to the list of maintained Marvell Armada dts files

* tag 'mvebu-dt64-6.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu:
  MAINTAINERS: Add Falcon DB
  arm64: dts: a7k: add COM Express boards
  arm64: dts: marvell: Add SoC specific compatibles to SafeXcel crypto
  arm64: dts: marvell: change regulator-gpio to regulator-fixed
  arm64: dts: marvell: cn9131-cf-solidwan: Add missing GPIO properties on "nxp,pca9536"
  arm64: dts: marvell: Fix stray and typo "pinctrl-names" properties
  arm64: dts: marvell: Add missing "#phy-cells" to "usb-nop-xceiv"

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 18:48:16 +01:00
Arnd Bergmann
17102e756d MediaTek ARM64 Device Tree updates
This adds support for new boards and variants based on different
 already supported MediaTek SoCs, and improves support for current
 boards.
 
 In particular:
  - New machines:
    - Ezurio Tungsten 510 (MediaTek Genio 510 SoC)
    - Ezurio Tungsten 700 (MediaTek Genio 700 SoC)
 
 ...improvements for already supported SoCs and machines:
  - MT7981b gains support for PCI-Express, USB, Ethernet and for
    the "GED" WiFi HW offload
    - OpenWRT One board gains support for the same
  - MT8188/8195/8390/8395 gains support for the DPI1 interface
    and HDMI output from the SoC's HDMI Tx controller along with
    its HDMI PHY and DDC IPs, usable on a selection of boards
    that expose a HDMI connector, namely:
    - All MT8390 Genio EVK based boards
    - All MT8395 Genio EVK based boards
    - Radxa NIO-12L (MT8395)
 
 ...and dtbs_check warning fixes for many of the MTK devicetrees,
 including MT6795, MT7981, MT7986, MT7988, MT8173, MT8183, MT8186,
 MT8188, MT8192, and a dts coding style fix for Airoha EN7581-EVB.
 
 This also includes a fix for the new devicetree overlay warnings,
 adding dtbs with applied overlays for all of the devices having
 at least one overlay.
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Merge tag 'mtk-dts64-for-v6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux into soc/dt

MediaTek ARM64 Device Tree updates

This adds support for new boards and variants based on different
already supported MediaTek SoCs, and improves support for current
boards.

In particular:
 - New machines:
   - Ezurio Tungsten 510 (MediaTek Genio 510 SoC)
   - Ezurio Tungsten 700 (MediaTek Genio 700 SoC)

...improvements for already supported SoCs and machines:
 - MT7981b gains support for PCI-Express, USB, Ethernet and for
   the "GED" WiFi HW offload
   - OpenWRT One board gains support for the same
 - MT8188/8195/8390/8395 gains support for the DPI1 interface
   and HDMI output from the SoC's HDMI Tx controller along with
   its HDMI PHY and DDC IPs, usable on a selection of boards
   that expose a HDMI connector, namely:
   - All MT8390 Genio EVK based boards
   - All MT8395 Genio EVK based boards
   - Radxa NIO-12L (MT8395)

...and dtbs_check warning fixes for many of the MTK devicetrees,
including MT6795, MT7981, MT7986, MT7988, MT8173, MT8183, MT8186,
MT8188, MT8192, and a dts coding style fix for Airoha EN7581-EVB.

This also includes a fix for the new devicetree overlay warnings,
adding dtbs with applied overlays for all of the devices having
at least one overlay.

* tag 'mtk-dts64-for-v6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux: (47 commits)
  arm64: dts: mediatek: mt8192: Rename mt8192-afe-pcm to audio-controller
  dt-bindings: arm: mediatek: audsys: Support mt8192-audsys variant
  arm64: dts: mediatek: mt7988a: Fix PCI-Express T-PHY node address
  arm64: dts: mediatek: mt8186-evb: Add vproc fixed regulator
  arm64: dts: mediatek: mt7981b-openwrt-one: Add address/size cells to eth
  arm64: dts: mediatek: mt8183-kukui: Clean up IT6505 regulator supply
  arm64: dts: mediatek: mt7986a: Change compatible for SafeXcel crypto
  arm64: dts: mediatek: mt8173-evb: Add interrupts to DA9211 regulator
  arm64: dts: mediatek: mt6795-xperia-m5: Rename PMIC leds node
  arm64: dts: mediatek: mt6795: Fix issues in SCPSYS node
  arm64: dts: mediatek: mt6331: Fix VCAM IO regulator name
  arm64: dts: mediatek: mt6795-xperia-m5: Add UHS pins for MMC1 and 2
  arm64: dts: mediatek: mt8192-asurada: Remove unused clock-stretch-ns
  arm64: dts: mediatek: mt8173-elm: Remove regulators from thermal node
  arm64: dts: mediatek: mt8173-elm: Fix dsi0 ports warning
  arm64: dts: mediatek: mt8173-elm: Fix bluetooth node name and reorder
  arm64: dts: mediatek: mt8183-pumpkin: Fix pinmux node names
  arm64: dts: mediatek: mt8183-jacuzzi-pico6: Fix typo in pinmux node
  arm64: dts: mediatek: mt7981b-openwrt-one: Remove useless cells from flash@0
  arm64: dts: mediatek: mt8183-evb: Fix dtbs_check warnings
  ...

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 18:46:55 +01:00
Arnd Bergmann
16ea3c964e ARM: dts: OMAP updates for v6.20
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Merge tag 'omap-for-v6.20/dt-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap into soc/dt

ARM: dts: OMAP updates for v6.20

* tag 'omap-for-v6.20/dt-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap:
  ARM: dts: omap: dra7: Remove bogus #syscon-cells property
  ARM: dts: ti/omap: omap*: fix watchdog node names
  ARM: dts: ti: Drop unused .dtsi
  ARM: dts: Drop am335x-base0033 devicetree
  ARM: dts: tps65910: Add gpio & interrupt properties
  ARM: dts: omap: enable panic-indicator option
  ARM: dts: ti/omap: omap4-epson-embt2ws: add powerbutton

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 18:44:08 +01:00
Arnd Bergmann
d69af478d2 Allwinner device tree changes for 6.20
Not many changes this cycle.
 
 - The A523 family of SoCs gained support for SPI controllers.
 - Some cleanup of old ARM device tree files to fix DT binding validation
   errors.
 - D1 and A100 SoCs gained support for their LED controller. This was
   from a couple years ago. The driver made it in, but the DT patches
   were missed.
 - D1 and T113 SoCs gained support for the internal thermal sensor.
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Merge tag 'sunxi-dt-for-6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into soc/dt

Allwinner device tree changes for 6.20

Not many changes this cycle.

- The A523 family of SoCs gained support for SPI controllers.
- Some cleanup of old ARM device tree files to fix DT binding validation
  errors.
- D1 and A100 SoCs gained support for their LED controller. This was
  from a couple years ago. The driver made it in, but the DT patches
  were missed.
- D1 and T113 SoCs gained support for the internal thermal sensor.

* tag 'sunxi-dt-for-6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  riscv: dts: allwinner: d1: Add CPU thermal sensor and zone
  ARM: dts: allwinner: Replace status "failed" with "fail"
  riscv: dts: allwinner: d1: Add RGB LEDs to boards
  riscv: dts: allwinner: d1: Add LED controller node
  arm64: dts: allwinner: a100: Add LED controller node
  ARM: dts: allwinner: sun5i-a13-utoo-p66: delete "power-gpios" property
  arm64: dts: allwinner: t527: orangepi-4a: Enable SPI-NOR flash
  arm64: dts: allwinner: sun55i: Add SPI controllers

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 18:42:44 +01:00
Arnd Bergmann
91e93edc63 Amlogic ARM DT for v6.20:
- drop iio-hwmon in favour of generic-adc-thermal
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Merge tag 'amlogic-arm-dt-for-v6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux into soc/dt

Amlogic ARM DT for v6.20:
- drop iio-hwmon in favour of generic-adc-thermal

* tag 'amlogic-arm-dt-for-v6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux:
  ARM: dts: meson: drop iio-hwmon in favour of generic-adc-thermal

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 18:42:10 +01:00
Arnd Bergmann
3b2db85f48 Amlogic ARM64 DT for v6.20:
- Cleanups:
   - Use lowercase hex
   - Use hyphen in node names
   - move CPU OPP table and clock assignment to SoC.dtsi
   - drop useless assigned-clock-parents
 - MMC clock fixup across multiple families
 - Add type-c controller on Radxa Zero 2 and enable NPU
 - New board:
   - Khadas VIM1s based on Amlogic S4
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Merge tag 'amlogic-arm64-dt-for-v6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux into soc/dt

Amlogic ARM64 DT for v6.20:
- Cleanups:
  - Use lowercase hex
  - Use hyphen in node names
  - move CPU OPP table and clock assignment to SoC.dtsi
  - drop useless assigned-clock-parents
- MMC clock fixup across multiple families
- Add type-c controller on Radxa Zero 2 and enable NPU
- New board:
  - Khadas VIM1s based on Amlogic S4

* tag 'amlogic-arm64-dt-for-v6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux:
  arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: enable SDIO interface
  arm64: dts: amlogic: add the type-c controller on Radxa Zero 2
  arm64: dts: amlogic: meson-sm1-odroid: Eliminate Odroid HC4 power glitches during boot.
  arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: enable eMMC storage
  arm64: dts: meson-s4-s905y4-khadas-vim1s: add initial device tree
  arm64: dts: meson-s4-aq222: update compatible string with s805x2
  dt-bindings: arm: amlogic: introduce specific compatibles for S4 family
  arm64: dts: amlogic: Enable the npu node on Radxa Zero 2
  arm64: dts: amlogic: g12: assign the MMC A signal clock
  arm64: dts: amlogic: g12: assign the MMC B and C signal clocks
  arm64: dts: amlogic: gx: assign the MMC signal clocks
  arm64: dts: amlogic: axg: assign the MMC signal clocks
  arm64: dts: amlogic: a1: align the mmc clock setup
  arm64: dts: amlogic: c3: assign the MMC signal clocks
  arm64: dts: amlogic: s4: fix mmc clock assignment
  arm64: dts: amlogic: s4: assign mmc b clock to 24MHz
  arm64: dts: amlogic: drop useless assigned-clock-parents
  arm64: dts: amlogic: move CPU OPP table and clock assignment to SoC.dtsi
  arm64: dts: amlogic: Use lowercase hex
  arm64: dts: amlogic: Use hyphen in node names

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 18:40:34 +01:00
Arnd Bergmann
332a1ff488 RISC-V SpacemiT DT changes for 6.20
- Disable Ethernet PHY auto sleep mode
 - Add pinctrl IO power support
 - Add K3 Pico-ITX board
 - Add support for K3 SoC
 - Add DWC USB support
 - Add reset for eMMC(sdhci)/I2C
 - Add PCIe support
 - Support PMIC for Jupiter board
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Merge tag 'spacemit-dt-for-6.20-1' of https://github.com/spacemit-com/linux into soc/dt

RISC-V SpacemiT DT changes for 6.20

- Disable Ethernet PHY auto sleep mode
- Add pinctrl IO power support
- Add K3 Pico-ITX board
- Add support for K3 SoC
- Add DWC USB support
- Add reset for eMMC(sdhci)/I2C
- Add PCIe support
- Support PMIC for Jupiter board

* tag 'spacemit-dt-for-6.20-1' of https://github.com/spacemit-com/linux:
  riscv: dts: spacemit: Disable ETH PHY sleep mode for OrangePi
  riscv: dts: spacemit: pinctrl: update register and IO power
  riscv: dts: spacemit: add K3 Pico-ITX board support
  riscv: dts: spacemit: add initial support for K3 SoC
  dt-bindings: riscv: spacemit: add K3 and Pico-ITX board bindings
  dt-bindings: interrupt-controller: add SpacemiT K3 IMSIC
  dt-bindings: interrupt-controller: add SpacemiT K3 APLIC
  dt-bindings: timer: add SpacemiT K3 CLINT
  dt-bindings: riscv: add SpacemiT X100 CPU compatible
  riscv: dts: spacemit: k1: Add "b" ISA extension
  riscv: dts: spacemit: Enable USB3.0 on BananaPi-F3
  riscv: dts: spacemit: Add DWC3 USB 3.0 controller node for K1
  riscv: dts: spacemit: Add USB2 PHY node for K1
  riscv: dts: spacemit: sdhci: add reset support
  riscv: dts: spacemit: add reset property
  riscv: dts: spacemit: PCIe and PHY-related updates
  riscv: dts: spacemit: Add a PCIe regulator
  riscv: dts: spacemit: Define the P1 PMIC regulators for Milk-V Jupiter
  riscv: dts: spacemit: Define fixed regulators for Milk-V Jupiter
  riscv: dts: spacemit: Enable i2c8 adapter for Milk-V Jupiter

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 18:39:39 +01:00
Arnd Bergmann
c8f7de01d9 Samsung DTS ARM64 changes for v6.20, part two
Add DPU clock management unit nodes to Google GS101.
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Merge tag 'samsung-dt64-6.20-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into soc/dt

Samsung DTS ARM64 changes for v6.20, part two

Add DPU clock management unit nodes to Google GS101.

* tag 'samsung-dt64-6.20-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  arm64: dts: exynos: gs101: add cmu_dpu and sysreg_dpu dt nodes
  dt-bindings: clock: google,gs101-clock: Add DPU clock management unit
  dt-bindings: clock: google,gs101-clock: fix alphanumeric ordering

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 18:36:57 +01:00
Arnd Bergmann
9587fe4928 This pull request contains Broadcom ARM64-based SoCs DT changes for
6.20, please pull the following:
 
 - Peter enables the RNG on 2712 (Raspberry Pi 5)
 
 - Stanimir adds the watchdog DT node on 2712
 
 - Rob removes undocumneted nodes, reworks clock nodes, fixes the
   "simple-bus" node names, and cleans up additional properties and nodes
   for all Broadcom ARM64-based SoCs
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Merge tag 'arm-soc/for-6.20/devicetree-arm64' of https://github.com/Broadcom/stblinux into soc/dt

This pull request contains Broadcom ARM64-based SoCs DT changes for
6.20, please pull the following:

- Peter enables the RNG on 2712 (Raspberry Pi 5)

- Stanimir adds the watchdog DT node on 2712

- Rob removes undocumneted nodes, reworks clock nodes, fixes the
  "simple-bus" node names, and cleans up additional properties and nodes
  for all Broadcom ARM64-based SoCs

* tag 'arm-soc/for-6.20/devicetree-arm64' of https://github.com/Broadcom/stblinux:
  arm64: dts: broadcom: bcm4906-netgear-r8000p: Drop unnecessary "ranges" in partition node
  arm64: dts: broadcom: northstar2: Drop "arm,cci-400-pmu" fallback compatible
  arm64: dts: broadcom: northstar2: Drop QSPI "clock-names"
  arm64: dts: broadcom: northstar2: Drop unused and undocumented "brcm,pcie-ob-oarr-size" properties
  arm64: dts: broadcom: northstar2: Rework clock nodes
  arm64: dts: broadcom: ns2-svk: Use non-deprecated at25 properties
  arm64: dts: broadcom: Use preferred node names
  arm64: dts: broadcom: stingray: Move raid nodes out of bus
  arm64: dts: broadcom: stingray: Fix 'simple-bus' node names
  arm64: dts: broadcom: stingray: Rework clock nodes
  arm64: dts: broadcom: Remove unused and undocumented nodes
  arm64: dts: broadcom: bcm2712: Add watchdog DT node
  arm64: dts: broadcom: bcm2712: Enable RNG

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 18:34:53 +01:00
Arnd Bergmann
b2a29633f4 This pull request contains Broadcom ARM-based SoCs DT changes for 6.20,
please pull the following:
 
 - Rob fixes the simple-bus node names in the BCM2711 .dtsi file
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Merge tag 'arm-soc/for-6.20/devicetree' of https://github.com/Broadcom/stblinux into soc/dt

This pull request contains Broadcom ARM-based SoCs DT changes for 6.20,
please pull the following:

- Rob fixes the simple-bus node names in the BCM2711 .dtsi file

* tag 'arm-soc/for-6.20/devicetree' of https://github.com/Broadcom/stblinux:
  ARM: dts: broadcom: bcm2711: Fix 'simple-bus' node names

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 18:27:13 +01:00
Deepanshu Kartikey
2724138b2f iommufd: Initialize batch->kind in batch_clear()
KMSAN reported an uninitialized value when batch_add_pfn_num() reads
batch->kind. This occurs because batch_clear() does not initialize the
kind field.

When batch_add_pfn_num() checks "if (batch->kind != kind)", it reads this
uninitialized value, triggering KMSAN warnings. However the algorithm is
fine with any value in kind at this point as the batch is always empty and
it always corrects kind if wrong.

Initialize batch->kind to zero in batch_clear() to silence the KMSAN
warning.

Link: https://patch.msgid.link/r/20260124132214.624041-1-kartikey406@gmail.com
Reported-by: syzbot+df28076a30d726933015@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=df28076a30d726933015
Fixes: f394576eb1 ("iommufd: PFN handling for iopt_pages")
Tested-by: syzbot+df28076a30d726933015@syzkaller.appspotmail.com
Signed-off-by: Deepanshu Kartikey <kartikey406@gmail.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Tested-by: syzbot+a0c841e02f328005bbcc@syzkaller.appspotmail.com
Reported-by: syzbot+a0c841e02f328005bbcc@syzkaller.appspotmail.com
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2026-01-28 12:49:17 -04:00
Joey Gouly
1f3b950492 arm64: poe: fix stale POR_EL0 values for ptrace
If a process wrote to POR_EL0 and then crashed before a context switch
happened, the coredump would contain an incorrect value for POR_EL0.

The value read in poe_get() would be a stale value left in thread.por_el0.  Fix
this by reading the value from the system register, if the target thread is the
current thread.

This matches what gcs/fpsimd do.

Fixes: 1751981992 ("arm64/ptrace: add support for FEAT_POE")
Reported-by: David Spickett <david.spickett@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Kevin Brodsky <kevin.brodsky@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
2026-01-28 16:39:24 +00:00
Manivannan Sadhasivam
9cb64f61ec PCI/pwrctrl: Add PCIe M.2 connector support
Add support for handling PCIe M.2 connectors as Power Sequencing devices.
These connectors are exposed as Power Sequencing devices as they often
support multiple interfaces like PCIe/SATA, USB/UART to the host machine,
and the interfaces may be driven by different client drivers at the same
time.

This driver handles the PCIe interface of these connectors. It first checks
for the presence of the graph port in the Root Port node with the help of
of_graph_is_present() API. If present, it acquires/powers ON the
corresponding pwrseq device.

Once the pwrseq device is powered ON, the driver will skip parsing the Root
Port/Slot resources and register with the pwrctrl framework.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://patch.msgid.link/20260128-pci-m2-v7-1-9b3a5fe3d244@oss.qualcomm.com
2026-01-28 10:39:17 -06:00
Arnd Bergmann
8f8f7bccda RISC-V Devicetrees for v6.20
Sophgo:
 
 For CV18xx serials:
 Update RX/TX FIFO size to fix the USB transfer issue.
 
 For SG2042:
 Optimize the DTS file format, including moving PLIC/CLINT
 nodes into cpu dtsi and sorting peripheral nodes by address.
 In addition, we also enable RTC for Pioneerbox.
 
 For SG2044:
 Add "b" ISA extension to fix dtbs_check warnings.
 
 Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
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Merge tag 'riscv-sophgo-dt-for-v6.20' of https://github.com/sophgo/linux into soc/dt

RISC-V/Sophgo Devicetrees for v6.20

Sophgo:

For CV18xx serials:
Update RX/TX FIFO size to fix the USB transfer issue.

For SG2042:
Optimize the DTS file format, including moving PLIC/CLINT
nodes into cpu dtsi and sorting peripheral nodes by address.
In addition, we also enable RTC for Pioneerbox.

For SG2044:
Add "b" ISA extension to fix dtbs_check warnings.

Signed-off-by: Chen Wang <unicorn_wang@outlook.com>

* tag 'riscv-sophgo-dt-for-v6.20' of https://github.com/sophgo/linux:
  riscv: dts: sophgo: sg2044: Add "b" ISA extension
  riscv: dts: sophgo: fix the node order of SG2042 peripheral
  riscv: dts: sophgo: Move PLIC and CLINT node into CPU dtsi
  riscv: dts: sophgo: enable hardware clock (RTC) on the Milk-V Pioneer
  riscv: dts: sophgo: cv180x: fix USB dwc2 FIFO sizes

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 17:23:05 +01:00
Arnd Bergmann
1092e5c0d1 STM32 DT for v6.20, round 1
Highlights:
 ----------
 
 - MCU:
   - Update/add Led support on ST boards.
 
 - MPU:
   - STM32MP13:
     - Add boot led and red led on ST DK board.
 
   - STMP32MP15:
     - Add boot led and red led on ST DK boards.
     - Add SPI1 sleep pinctrl group.
 
   - STM32MP23:
     - Add green ,orange and boot leds on ST boards.
     - Add SPI, I2C, DCMIPP and CSI instances to CLUSTER_PD
       power domain.
     - Enable analog-filter to all I2C instances.
 
   - STM32MP25:
     - Add green ,orange and boot leds on ST boards.
     - Add SPI, I2C, DCMIPP and CSI instances to CLUSTER_PD
       power domain.
     - Enable analog-filter to all I2C instances.
     - Add LPDDR/DDR channels to ST boards.
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Merge tag 'stm32-dt-for-v6.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32 into soc/dt

STM32 DT for v6.20, round 1

Highlights:
----------

- MCU:
  - Update/add Led support on ST boards.

- MPU:
  - STM32MP13:
    - Add boot led and red led on ST DK board.

  - STMP32MP15:
    - Add boot led and red led on ST DK boards.
    - Add SPI1 sleep pinctrl group.

  - STM32MP23:
    - Add green ,orange and boot leds on ST boards.
    - Add SPI, I2C, DCMIPP and CSI instances to CLUSTER_PD
      power domain.
    - Enable analog-filter to all I2C instances.

  - STM32MP25:
    - Add green ,orange and boot leds on ST boards.
    - Add SPI, I2C, DCMIPP and CSI instances to CLUSTER_PD
      power domain.
    - Enable analog-filter to all I2C instances.
    - Add LPDDR/DDR channels to ST boards.

* tag 'stm32-dt-for-v6.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32: (31 commits)
  arm/arm64: dts: st: Drop unused .dtsi
  arm64: STM32: drop an undefined Kconfig symbol
  arm64: dts: st: Minor whitespace cleanup
  arm64: dts: st: Use hyphen in node names
  arm64: dts: st: add power-domain of dcmipp in stm32mp231.dtsi
  arm64: dts: st: add power-domain of dcmipp in stm32mp251.dtsi
  dt-bindings: media: st: dcmipp: add 'power-domains' property
  arm64: dts: st: add power-domain of csi in stm32mp231.dtsi
  arm64: dts: st: add power-domain of csi in stm32mp251.dtsi
  dt-bindings: media: st: csi: add 'power-domains' property
  ARM: dts: stm32: add spi1 sleep state pinctrl on stm32mp157c-ev1
  arm64: dts: st: add DDR channel to stm32mp257f-ev1 board
  arm64: dts: st: add LPDDR channel to stm32mp257f-dk board
  arm64: dts: st: enable i2c analog-filter in stm32mp231.dtsi
  arm64: dts: st: enable i2c analog-filter in stm32mp251.dtsi
  arm64: dts: st: add power-domains in all i2c of stm32mp231.dtsi
  arm64: dts: st: add power-domains in all i2c of stm32mp251.dtsi
  dt-bindings: i2c: st,stm32-i2c: add 'power-domains' property
  arm64: dts: st: add power-domains in all spi of stm32mp231.dtsi
  arm64: dts: st: add power-domains in all spi of stm32mp251.dtsi
  ...

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 17:04:28 +01:00
Linus Torvalds
8dfce8991b Pin control fixes for the v6.19 series:
- Mark the Meson GPIO controller as sleeping to avoid a
   context splat.
 
 - Fix up the I2S2 and SWR TX group settings in the
   Qualcomm SM8350 LPASS pin controller, and implement the
   proper .get_direction() callback.
 
 - Fix a pin typo in the TG1520 pin controller.
 
 - Fix a group name in the Marvell armada 3710 XB pin
   controller that got mangled in a DT schema rewrite.
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Merge tag 'pinctrl-v6.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:

 - Mark the Meson GPIO controller as sleeping to avoid a
   context splat

 - Fix up the I2S2 and SWR TX group settings in the
   Qualcomm SM8350 LPASS pin controller, and implement the
   proper .get_direction() callback

 - Fix a pin typo in the TG1520 pin controller

 - Fix a group name in the Marvell armada 3710 XB pin
   controller that got mangled in a DT schema rewrite

* tag 'pinctrl-v6.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  dt-bindings: pinctrl: marvell,armada3710-xb-pinctrl: fix 'usb32_drvvbus0' group name
  pinctrl: lpass-lpi: implement .get_direction() for the GPIO driver
  pinctrl: th1520: Fix typo
  pinctrl: qcom: sm8350-lpass-lpi: Merge with SC7280 to fix I2S2 and SWR TX pins
  pinctrl: meson: mark the GPIO controller as sleeping
2026-01-28 08:03:11 -08:00
Arnd Bergmann
2ba042ca39 i.MX arm64 device tree changes for 6.20:
- New board support: i.MX8MP/i.MX91/i.MX93/i.MX95 FRDM, ifm VHIP4
   EvalBoard, Apalis iMX8QP, TQ-Systems MBLS1028A/MBLS1028A-IND
 - A number of series from Alexander Stein improving lpcg indices
   description for tqma8xxs board, moving BMAN/QMAN buffers for
   tqmls1046a, refreshing tqma8mpql-mba8mpxl support a bit, adding HDMI
   audio support for tqma8mpql-mba8mp-ras314 etc.
 - A series from Chancel Liu adding various audio features for
   imx93-14x14-evk board
 - A series from Francesco Dolcini enabling hdmi_pai device for
   imx8mp-verdin and imx8mp-toradex-smarc
 - A couple of changes from Francesco Valla enabling more devices
   and correcting CAN transceiver gpio for imx93-11x11-frdm
 - A few changes from Frank Li adding DDR perf support for imx8qm, adding
   camera support for imx8mp-evk, enabling thermal support for i.MX91, etc.
 - A series from Haibo Chen adding flexcan support for imx943-evk and
   imx952-evk boards
 - A series from Krzysztof Kozlowski fixing up coding style issues
 - A couple of changes from Marek Vasut updating Data Modul i.MX8M Plus
   eDM SBC DT to rev.903, using GPU_CGC as core clock for GPU on i.MX95
 - A series from Markus Niebel to clean up imx8mm-tqma8mqml board
   regulators
 - A couple of series from Peng Fan replacing xceiver-supply with phys
   for NXP EVK boards, improving imx952-evk board support
 - A series from Sebastian Krzyszkowiak to refresh imx8mq-librem5 support
 - A couple of series from Stefano Radaelli to improve
   imx93-var-som-symphony and imx8mp-var-som support
 - Other random changes for various boards
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Merge tag 'imx-dt64-6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into soc/dt

i.MX arm64 device tree changes for 6.20:

- New board support: i.MX8MP/i.MX91/i.MX93/i.MX95 FRDM, ifm VHIP4
  EvalBoard, Apalis iMX8QP, TQ-Systems MBLS1028A/MBLS1028A-IND
- A number of series from Alexander Stein improving lpcg indices
  description for tqma8xxs board, moving BMAN/QMAN buffers for
  tqmls1046a, refreshing tqma8mpql-mba8mpxl support a bit, adding HDMI
  audio support for tqma8mpql-mba8mp-ras314 etc.
- A series from Chancel Liu adding various audio features for
  imx93-14x14-evk board
- A series from Francesco Dolcini enabling hdmi_pai device for
  imx8mp-verdin and imx8mp-toradex-smarc
- A couple of changes from Francesco Valla enabling more devices
  and correcting CAN transceiver gpio for imx93-11x11-frdm
- A few changes from Frank Li adding DDR perf support for imx8qm, adding
  camera support for imx8mp-evk, enabling thermal support for i.MX91, etc.
- A series from Haibo Chen adding flexcan support for imx943-evk and
  imx952-evk boards
- A series from Krzysztof Kozlowski fixing up coding style issues
- A couple of changes from Marek Vasut updating Data Modul i.MX8M Plus
  eDM SBC DT to rev.903, using GPU_CGC as core clock for GPU on i.MX95
- A series from Markus Niebel to clean up imx8mm-tqma8mqml board
  regulators
- A couple of series from Peng Fan replacing xceiver-supply with phys
  for NXP EVK boards, improving imx952-evk board support
- A series from Sebastian Krzyszkowiak to refresh imx8mq-librem5 support
- A couple of series from Stefano Radaelli to improve
  imx93-var-som-symphony and imx8mp-var-som support
- Other random changes for various boards

* tag 'imx-dt64-6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (104 commits)
  arm64: dts: freescale: imx95: Add support for i.MX95 15x15 FRDM board
  arm64: dts: imx91-11x11-frdm: fix CAN transceiver gpio
  arm64: dts: imx93-11x11-frdm: enable additional devices
  arm64: dts: imx93-11x11-frdm: Add MQS audio support
  arm64: dts: imx952-evk: Add nxp,ctrl-ids for scmi misc
  arm64: dts: imx952-evk: Add flexcan support
  arm64: dts: imx952-evk: Enable TPM[3,6]
  arm64: dts: imx952-evk: Enable wdog3
  arm64: dts: imx952-evk: Enable USB[1,2]
  arm64: dts: imx952-evk: Enable SPI7
  arm64: dts: imx952-evk: Enable UART5
  arm64: dts: imx952-evk: Enable I2C[2,3,4,6,7] bus
  arm64: dts: imx952-evk: Change the usdhc1_200mhz drive strength to DSE4
  arm64: dts: imx952: Add idle-states node
  arm64: dts: imx8mn: Add ifm VHIP4 EvalBoard v1 and v2
  arm64: dts: imx8mn: Add SNVS LPGPR
  arm64: dts: imx8mq-librem5: Don't set mic-cfg for wm8962
  arm64: dts: imx8mq-librem5: Set cap-power-off-card for usdhc2
  arm64: dts: imx8mq-librem5: Limit uSDHC2 frequency to 50MHz
  arm64: dts: imx8mq-librem5: Enable SNVS RTC
  ...

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 17:00:58 +01:00
Arnd Bergmann
33dc81740d i.MX dt-bindgings changes for 6.20:
- New board compatibles for i.MX93 11x11 FRDM, Apalis iMX8QP, i.MX91 FRDM,
   ifm VHIP4 EvalBoard v1 and v2, TQ-Systems MBLS1028A/MBLS1028A-IND,
   i.MX952 EVK, i.MX8MP FRDM
 - Add vendor prefix for ifm electronic gmbh
 - A couple of small changes for fsl,imx-gpc.yaml and tcg,tpm-tis-i2c.yaml
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Merge tag 'imx-bindings-6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into soc/dt

i.MX dt-bindgings changes for 6.20:

- New board compatibles for i.MX93 11x11 FRDM, Apalis iMX8QP, i.MX91 FRDM,
  ifm VHIP4 EvalBoard v1 and v2, TQ-Systems MBLS1028A/MBLS1028A-IND,
  i.MX952 EVK, i.MX8MP FRDM
- Add vendor prefix for ifm electronic gmbh
- A couple of small changes for fsl,imx-gpc.yaml and tcg,tpm-tis-i2c.yaml

* tag 'imx-bindings-6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  dt-bindings: arm: fsl: Add compatible for i.MX95 15x15 FRDM board
  dt-bindings: arm: fsl: Document ifm VHIP4 EvalBoard v1 and v2
  dt-bindings: vendor-prefixes: Document ifm electronic gmbh
  dt-bindings: arm: fsl: Add FRDM-IMX91 board
  dt-bindings: tpm: Add st,st33tphf2ei2c
  dt-bindings: arm: fsl: Add Apalis iMX8QP
  dt-bindings: arm: fsl: add i.MX952 EVK board
  dt-bindings: arm: fsl: add i.MX93 11x11 FRDM board
  dt-bindings: power: fsl,imx-gpc: Document address-cells
  dt-bindings: arm: fsl: Add i.MX8MP FRDM board
  dt-bindings: arm: fsl: add TQ-Systems boards MBLS1028A and MBLS1028A-IND

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 17:00:13 +01:00
Arnd Bergmann
1daa947cb2 dt-bindings: Changes for v6.20-rc1
This series updates various DT bindings for Tegra architecture,
 primarily focusing on schema validation fixes and new feature
 documentation for Tegra234 and Tegra264 SoCs. Key changes include
 converting Tegra20 NAND bindings to YAML, and updating memory, DMA, and
 IOMMU definitions for Tegra264 (introducing CMDQV and DBB clock
 support). Additionally, it resolves legacy warnings for Tegra30/132
 display and VI interfaces.
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Merge tag 'tegra-for-6.20-dt-bindings-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/dt

dt-bindings: Changes for v6.20-rc1

This series updates various DT bindings for Tegra architecture,
primarily focusing on schema validation fixes and new feature
documentation for Tegra234 and Tegra264 SoCs. Key changes include
converting Tegra20 NAND bindings to YAML, and updating memory, DMA, and
IOMMU definitions for Tegra264 (introducing CMDQV and DBB clock
support). Additionally, it resolves legacy warnings for Tegra30/132
display and VI interfaces.

* tag 'tegra-for-6.20-dt-bindings-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  dt-bindings: display: tegra: document Tegra30 VI and VIP
  dt-bindings: display: tegra: document Tegra132 MIPI calibration device
  dt-bindings: mtd: nvidia,tegra20-nand: convert to DT schema
  dt-bindings: dma: Update ADMA bindings for tegra264
  dt-bindings: iommu: Add NVIDIA Tegra CMDQV support
  dt-bindings: memory: tegra: Document DBB clock for Tegra264
  dt-bindings: tegra: pmc: Update aotag as an optional aperture
2026-01-28 16:56:11 +01:00
Beata Michalska
c71257394b rust: dma: allow drivers to tune max segment size
Make dma_set_max_seg_size() available to Rust so drivers can perform
standard DMA setup steps.

Signed-off-by: Beata Michalska <beata.michalska@arm.com>
Acked-by: Robin Murphy <robvin.murphy@arm.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://patch.msgid.link/20260128135320.689046-1-beata.michalska@arm.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2026-01-28 16:53:24 +01:00
Marek Vasut
7ae4d097b7
spi: spi-fsl-lpspi: Handle clock polarity and phase
The LPSPI driver currently does not support setting SPI bus clock
polarity and phase, add support for it.

It is important to configure correct initial clock polarity and phase
before the GPIO chipselect toggles, otherwise a chip attached to the
bus might recognize the first change of clock signal as the first
clock cycle and get confused.

In order to set up the correct polarity and phase on the clock signal
before the GPIO chipselects get configured by the SPI core, the
controller has to be briefly brought up in fsl_lpspi_prepare_message().
The fsl_lpspi_prepare_message() behaves like a zero-length transfer
which always uses PIO and never DMA, and which leaves the clock signal
in the correct state at the end of such transfer, which happens before
the GPIO chipselect toggles.

Signed-off-by: Marek Vasut <marex@nabladev.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260127222353.1452003-1-marex@nabladev.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-01-28 15:53:10 +00:00
Chuck Lever
3daab3112f nfsd: cancel async COPY operations when admin revokes filesystem state
Async COPY operations hold copy stateids that represent NFSv4 state.
Thus, when the NFS server administrator revokes all NFSv4 state for
a filesystem via the unlock_fs interface, ongoing async COPY
operations referencing that filesystem must also be canceled.

Each cancelled copy triggers a CB_OFFLOAD callback carrying the
NFS4ERR_ADMIN_REVOKED status to notify the client that the server
terminated the operation.

The static drop_client() function is renamed to nfsd4_put_client()
and exported. The function must be exported because both the new
nfsd4_cancel_copy_by_sb() and the CB_OFFLOAD release callback in
nfs4proc.c need to release client references.

Reviewed-by: NeilBrown <neil@brown.name>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2026-01-28 10:15:42 -05:00
Jeff Layton
d8316b837c nfsd: add controls to set the minimum number of threads per pool
Add a new "min_threads" variable to the nfsd_net, along with the
corresponding netlink interface, to set that value from userland.
Pass that value to svc_set_pool_threads() and svc_set_num_threads().

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2026-01-28 10:15:42 -05:00
Jeff Layton
1c87a0c39a nfsd: adjust number of running nfsd threads based on activity
nfsd() is changed to pass a timeout to svc_recv() when there is a min
number of threads set, and to handle error returns from it:

In the case of -ETIMEDOUT, if the service mutex can be taken (via
trylock), the thread becomes an RQ_VICTIM so that it will exit,
providing that the actual number of threads is above pool->sp_nrthrmin.

In the case of -EBUSY, if the actual number of threads is below
pool->sp_nrthrmax, it will attempt to start a new thread. This attempt
is gated on a new SP_TASK_STARTING pool flag that serializes thread
creation attempts within a pool, and further by mutex_trylock().

Neil says: "I think we want memory pressure to be able to push a thread
into returning -ETIMEDOUT.  That can come later."

Signed-off-by: NeilBrown <neil@brown.name>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2026-01-28 10:15:42 -05:00
Jeff Layton
a0022a38be sunrpc: allow svc_recv() to return -ETIMEDOUT and -EBUSY
To dynamically adjust the thread count, nfsd requires some information
about how busy things are.

Change svc_recv() to take a timeout value, and then allow the wait for
work to time out if it's set. If a timeout is not defined, then the
schedule will be set to MAX_SCHEDULE_TIMEOUT. If the task waits for the
full timeout, then have it return -ETIMEDOUT to the caller.

If it wakes up, finds that there is more work and that no threads are
available, then attempt to set SP_TASK_STARTING. If wasn't already set,
have the task return -EBUSY to cue to the caller that the service could
use more threads.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2026-01-28 10:15:42 -05:00
Jeff Layton
7f221b340d sunrpc: split new thread creation into a separate function
Break out the part of svc_start_kthreads() that creates a thread into
svc_new_thread(), as a new exported helper function.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2026-01-28 10:15:42 -05:00
Jeff Layton
7ffc7ade2c sunrpc: introduce the concept of a minimum number of threads per pool
Add a new pool->sp_nrthrmin field to track the minimum number of threads
in a pool. Add min_threads parameters to both svc_set_num_threads() and
svc_set_pool_threads(). If min_threads is non-zero and less than the
max, svc_set_num_threads() will ensure that the number of running
threads is between the min and the max.

If the min is 0 or greater than the max, then it is ignored, and the
maximum number of threads will be started, and never spun down.

For now, the min_threads is always 0, but a later patch will pass the
proper value through from nfsd.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2026-01-28 10:15:42 -05:00
Jeff Layton
6cd60f4274 sunrpc: track the max number of requested threads in a pool
The kernel currently tracks the number of threads running in a pool in
the "sp_nrthreads" field. In the future, where threads are dynamically
spun up and down, it'll be necessary to keep track of the maximum number
of requested threads separately from the actual number running.

Add a pool->sp_nrthrmax parameter to track this. When userland changes
the number of threads in a pool, update that value accordingly.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2026-01-28 10:15:42 -05:00
Jeff Layton
2c01f0cf32 sunrpc: remove special handling of NULL pool from svc_start/stop_kthreads()
Now that svc_set_num_threads() handles distributing the threads among
the available pools, remove the special handling of a NULL pool pointer
from svc_start_kthreads() and svc_stop_kthreads().

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2026-01-28 10:15:42 -05:00
Jeff Layton
e344f87262 sunrpc: split svc_set_num_threads() into two functions
svc_set_num_threads() will set the number of running threads for a given
pool. If the pool argument is set to NULL however, it will distribute
the threads among all of the pools evenly.

These divergent codepaths complicate the move to dynamic threading.
Simplify the API by splitting these two cases into different helpers:

Add a new svc_set_pool_threads() function that sets the number of
threads in a single, given pool. Modify svc_set_num_threads() to
distribute the threads evenly between all of the pools and then call
svc_set_pool_threads() for each.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2026-01-28 10:15:42 -05:00
Christian Marangi
f2090ebdb5 soc: qcom: smem: fix qcom_smem_is_available and check if __smem is valid
Commit 7a94d5f31b ("soc: qcom: smem: better track SMEM uninitialized
state") changed the usage of __smem and init now as an error pointer
instead of NULL.

qcom_smem_is_available() wasn't updated to reflect this change and also
.qcom_smem_remove doesn't reset it on module exit.

Update both entry to reflect new handling of __smem.

Fixes: 7a94d5f31b ("soc: qcom: smem: better track SMEM uninitialized state")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/aSAnR3ECa04CoPqp@stanley.mountain/
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251122185002.26524-1-ansuelsmth@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2026-01-28 09:10:53 -06:00
John Garry
ac30cd3043 nvme: stop using AWUPF
As described at [0], much of the atomic write parts of the specification
are lacking.

For now, there is nothing which we can do in software about the lack of
a dedicated NVMe write atomic command.

As for reading the atomic write limits, it is felt that the per-namespace
values are mostly properly specified and it is assumed that they are
properly implemented.

The specification of NAWUPF is quite clear. However the specification of
NABSPF is less clear. The lack of clarity in NABSPF comes from deciding
whether NABSPF applies when NSABP is 0 - it is assumed that NSABPF does
not apply when NSABP is 0.

As for the per-controller AWUPF, how this value applies to shared
namespaces is missing in the specification. Furthermore, the value is in
terms of logical blocks, which is an NS entity.

Since AWUPF is so poorly defined, stop using it already together.
Hopefully this will force vendors to implement NAWUPF support always.

Note that AWUPF not only effects atomic write support, but also the
physical block size reported for the device.

To help users know this restriction, log an info message per NS.

[0] https://lore.kernel.org/linux-nvme/20250707141834.GA30198@lst.de/

Tested-by: Nilay Shroff <nilay@linux.ibm.com>
Reviewed-by: Nilay Shroff <nilay@linux.ibm.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-01-28 07:02:38 -08:00