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Author SHA1 Message Date
Jihed Chaibi 1f76c941c2 ARM: configs: u8500: Set NFC_SHDLC as built-in 
The CONFIG_NFC_SHDLC=m setting in u8500_defconfig causes a Kconfig
warning because the NFC_SHDLC symbol does not support being built
as a module.

Change the selection from 'm' to 'y' to build the driver in-kernel.

Fixes: 344cad0660 ("ARM: configs: Update U8500 defconfig")
Signed-off-by: Jihed Chaibi <jihed.chaibi.dev@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250930122709.28987-1-linus.walleij@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2025-10-01 23:48:45 +02:00
Alexei Starovoitov a1aca22d26 Merge branch 'bpf-fix-verifier-crash-on-bpf_neg-with-pointer-register' 
Brahmajit Das says:

====================
bpf: Fix verifier crash on BPF_NEG with pointer register

This patch fixes a crash in the BPF verifier triggered when the BPF_NEG
operation is applied to a pointer-typed register. The verifier now
checks that the destination register is not a pointer before performing
the operation.

Tested with syzkaller reproducer and new BPF sefltest.
Closes: https://syzkaller.appspot.com/bug?extid=d36d5ae81e1b0a53ef58

Changes v4:
Cleaning up, instead of using __is_pointer_value it's further
simplified by checking if regs[insn->dst_reg].type of SCALAR_VALUE
Link:

Changes in v3:
using __is_pointer_value to check if register if of pointer type
Link: https://lore.kernel.org/all/20251001095613.267475-1-listout@listout.xyz/

Changes in v2:
Checking if reg->map_ptr is NULL in bpf/log.c but with cleaner approach
(wrong approach)
Link: https://lore.kernel.org/all/20250923174738.1713751-1-listout@listout.xyz/

Changes in v1:
Checking if reg->map_ptr is NULL in bpf/log.c (wrong approach)
Link: https://lore.kernel.org/all/20250923164144.1573636-1-listout@listout.xyz/
====================

Link: https://patch.msgid.link/20251001191739.2323644-1-listout@listout.xyz
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
 2025-10-01 13:55:08 -07:00
KaFai Wan 8709c16852 selftests/bpf: Add test for BPF_NEG alu on CONST_PTR_TO_MAP 
Add a test case for BPF_NEG operation on CONST_PTR_TO_MAP. Tests if
BPF_NEG operation on map_ptr is rejected in unprivileged mode and is a
scalar value and do not trigger Oops in privileged mode.

Signed-off-by: KaFai Wan <kafai.wan@linux.dev>
Signed-off-by: Brahmajit Das <listout@listout.xyz>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20251001191739.2323644-3-listout@listout.xyz
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
 2025-10-01 13:55:00 -07:00
Brahmajit Das 34904582b5 bpf: Skip scalar adjustment for BPF_NEG if dst is a pointer 
In check_alu_op(), the verifier currently calls check_reg_arg() and
adjust_scalar_min_max_vals() unconditionally for BPF_NEG operations.
However, if the destination register holds a pointer, these scalar
adjustments are unnecessary and potentially incorrect.

This patch adds a check to skip the adjustment logic when the destination
register contains a pointer.

Reported-by: syzbot+d36d5ae81e1b0a53ef58@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=d36d5ae81e1b0a53ef58
Fixes: aced132599 ("bpf: Add range tracking for BPF_NEG")
Suggested-by: KaFai Wan <kafai.wan@linux.dev>
Suggested-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Brahmajit Das <listout@listout.xyz>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20251001191739.2323644-2-listout@listout.xyz
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
 2025-10-01 13:53:20 -07:00
Jiri Olsa 0c342bfc99 selftests/bpf: Fix realloc size in bpf_get_addrs 
We will segfault once we call realloc in bpf_get_addrs due to
wrong size argument.

Fixes: 6302bdeb91 ("selftests/bpf: Add a kprobe_multi subtest to use addrs instead of syms")
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
 2025-10-01 13:37:30 -07:00
Jiri Olsa 4b2b38ea20 selftests/bpf: Fix typo in subtest_basic_usdt after merge conflict 
Use proper 'called' variable name.

Fixes: ae28ed4578 ("Merge tag 'bpf-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next")
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/bpf/aN0JVRynHxqKy4lw@krava/
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
 2025-10-01 13:37:30 -07:00
Jiri Olsa f83fcec784 selftests/bpf: Fix open-coded gettid syscall in uprobe syscall tests 
Commit 0e2fb011a0 ("selftests/bpf: Clean up open-coded gettid syscall
invocations") addressed the issue that older libc may not have a gettid()
function call wrapper for the associated syscall.

The uprobe syscall tests got in from tip tree, using sys_gettid in there.

Fixes: 0e2fb011a0 ("selftests/bpf: Clean up open-coded gettid syscall invocations")
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
 2025-10-01 13:37:29 -07:00
Linus Torvalds 5fb0249319 Merge tag 'pinctrl-v6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl 
Pull pin control updates from Linus Walleij:
 "We have GPIO awareness in the pin control core and an interesting
  AAEON driver.

  Core changes:

   - Allow pins to be identified/marked as GPIO mode with a special
     callback.

     The pin controller core is now "aware" if a pin is in GPIO mode if
     the callback is implemented in the driver, and can thus be marked
     as "strict", i.e. disallowing simultaneous use of a line as GPIO
     and another function such as I2C.

     This is enabled in the Qualcomm TLMM driver and also implemeted
     from day 1 in the new Broadcom STB driver

   - Rename the pin config option PIN_CONFIG_OUTPUT to PIN_CONFIG_LEVEL
     to better describe what the config is doing, as well as making it
     more intuitive what shall be returned when reading this property

  New drivers:

   - Qualcomm SDM660 LPASS LPI TLMM pin controller subdriver

   - Qualcomm Glymur family pin controller driver

   - Broadcom STB family pin controller driver

   - Tegra186 pin controller driver

   - AAEON UP pin controller support.

     This is some special pin controller that works as an external
     advanced line MUX and amplifier for signals from an Intel SoC. A
     cooperative effort with the GPIO maintainer was needed to reach a
     solution where we reuse code from the GPIO aggregator/forwarder
     driver

   - Renesas RZ/T2H and RZ/N2H pin controller support

   - Axis ARTPEC-8 subdriver for the Samsung pin controller driver

  Improvements:

   - Output enable (OEN) support in the Renesas RZG2L driver

   - Properly support bias pull up/down in the pinctrl-single driver

   - Move over all GPIO portions using generic MMIO GPIO to the new
     generic GPIO chip management which has a nice and separate API

   - Proper DT bindings for some older Broadcom SoCs

   - External GPIO (EGPIO) support in the Qualcomm SM8250

  Deleted code:

   - Dropped the now unused Samsung S3C24xx drivers"

* tag 'pinctrl-v6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (75 commits)
  pinctrl: use more common syntax for compound literals
  pinctrl: Simplify printks with pOF format
  pinctrl: qcom: Add SDM660 LPASS LPI TLMM
  dt-bindings: pinctrl: qcom: Add SDM660 LPI pinctrl
  pinctrl: qcom: lpass-lpi: Add ability to use custom pin offsets
  pinctrl: qcom: Add glymur pinctrl driver
  dt-bindings: pinctrl: qcom: Add Glymur pinctrl
  pinctrl: qcom: sm8250: Add egpio support
  pinctrl: generic: rename PIN_CONFIG_OUTPUT to LEVEL
  pinctrl: keembay: fix double free in keembay_build_functions()
  pinctrl: spacemit: fix typo in PRI_TDI pin name
  pinctrl: eswin: Fix regulator error check and Kconfig dependency
  pinctrl: bcm: Add STB family pin controller driver
  dt-bindings: pinctrl: Add support for Broadcom STB pin controller
  pinctrl: qcom: make the pinmuxing strict
  pinctrl: qcom: mark the `gpio` and `egpio` pins function as non-strict functions
  pinctrl: qcom: add infrastructure for marking pin functions as GPIOs
  pinctrl: allow to mark pin functions as requestable GPIOs
  pinctrl: qcom: use generic pin function helpers
  pinctrl: make struct pinfunction a pointer in struct function_desc
  ...
 2025-10-01 13:14:48 -07:00
Linus Torvalds 524c4a5daf Merge tag 'for-linus-6.18-1' of https://github.com/cminyard/linux-ipmi 
Pull IPMI updates from Corey Minyard:
 "Bug fixes and enhancements for IPMI

  This fixes a number of small bugs, but has some more major changes:

   - Loongson-2K BMC support is added. This is an MFD device and is
     dependent on the changes coming from that tree.

     The way the driver handles BMCs that have become non-functional has
     been completely redone. A number of changes in the past have
     attempted to handle various issues around this, but nothing has
     been very good. After working with some people on this, the code
     has been reworked to disable the driver and fail all pending
     operations if the BMC becomes non functional. It will retry the BMC
     once a second to see if it's back up"

* tag 'for-linus-6.18-1' of https://github.com/cminyard/linux-ipmi:
  ipmi: Add Loongson-2K BMC support
  ipmi:si: Gracefully handle if the BMC is non-functional
  ipmi: Rename "user_data" to "recv_msg" in an SMI message
  ipmi: Allow an SMI sender to return an error
  ipmi:si: Move flags get start to its own function
  ipmi:si: Merge some if statements
  ipmi: Set a timer for maintenance mode
  ipmi: Add a maintenance mode sysfs file
  ipmi: Disable sysfs access and requests in maintenance mode
  ipmi: Differentiate between reset and firmware update in maintenance
  dt-bindings: ipmi: aspeed,ast2400-kcs-bmc: Add missing "clocks" property
  ipmi: Rework user message limit handling
  Revert "ipmi: fix msg stack when IPMI is disconnected"
  ipmi:msghandler:Change seq_lock to a mutex
 2025-10-01 13:10:30 -07:00
Linus Torvalds 3ee22ad492 Merge tag 'for-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply 
Pull power supply and reset updates from Sebastian Reichel:
 "Power-supply core:
   - introduce adc-battery-helper for capacity estimation based on
     simple ADC readings of battery voltage and current
   - add new properties for battery internal resistance and state of
     health

  Power-supply drivers:
   - ug3105_battery: convert to adc-battery-helper
   - intel_dc_ti_battery: New driver for Intel Dollar Cove TI batteries
   - rt9467-charger: add voltage and current ADC support
   - sbs-charger: support multiple instances
   - qcom_battmgr:
       - add charge control support
       - add support for state of health and internal resistance
   - max77705_charger:
       - big driver cleanup
       - add support for setting charge current
   - misc minor fixes and cleanups"

* tag 'for-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (38 commits)
  power: supply: qcom_battmgr: handle charging state change notifications
  power: supply: max77705_charger: use REGMAP_IRQ_REG_LINE macro
  power: supply: max77705_charger: rework interrupts
  power: supply: max77705_charger: add writable properties
  power: supply: max77705_charger: return error when config fails
  power: supply: max77705_charger: use regfields for config registers
  power: supply: max77705_charger: refactoring: rename charger to chg
  mfd: max77705: max77705_charger: move active discharge setting to mfd parent
  power: supply: max77976_charger: fix constant current reporting
  power: supply: qcom_battmgr: Add charge control support
  dt-bindings: soc: qcom,pmic-glink: Add charge limit nvmem properties
  power: supply: qcom_battmgr: update compats for SM8550 and X1E80100
  power: supply: qcom_battmgr: Add state_of_health property
  power: supply: qcom_battmgr: Add resistance power supply property
  power: supply: core: Add state_of_health power supply property
  power: supply: core: Add resistance power supply property
  power: supply: rx51: remove redundant condition checks
  dt-bindings: power: supply: bq24190: document charge enable pin
  dt-bindings: power: supply: bq27xxx: document optional interrupt
  power: supply: intel_dc_ti_battery: Drop no longer relevant comment
  ...
 2025-10-01 13:02:59 -07:00
Linus Torvalds dba8acc3ef Merge tag 'hsi-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi 
Pull HSI update from Sebastian Reichel:

 - Remove redundant pm_runtime_mark_last_busy() calls

* tag 'hsi-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi:
  HSI: omap_ssi_port: Remove redundant pm_runtime_mark_last_busy() calls
 2025-10-01 13:00:33 -07:00
Ian Rogers d18020cf1e perf test: Remove C python_use test 
Removed in favor of the shell script version.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Collin Funk <collin.funk1@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
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>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2025-10-01 16:59:11 -03:00
Ian Rogers 33706fb0aa perf test: Add an 'import perf' test shell script 
The 'import perf' test needs to set up a path to the python module as
well as to know the python command to invoke.

These are hard coded at build time to be build a directory and the
python used in the build, which is less than desirable.

Avoid the hard coded values by reusing the existing shell script python
setup and determine a potential built python module via the path of the
perf executable.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Collin Funk <collin.funk1@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
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>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2025-10-01 16:59:06 -03:00
NeilBrown 73cc6ec1a8 nfsd: discard nfserr_dropit 
nfserr_dropit hasn't been used for over a decade, since rq_dropme and
the RQ_DROPME were introduced.

Time to get rid of it completely.

Signed-off-by: NeilBrown <neil@brown.name>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
 2025-10-01 15:54:01 -04:00
Eric Biggers d8e97cc476 SUNRPC: Make RPCSEC_GSS_KRB5 select CRYPTO instead of depending on it 
Make RPCSEC_GSS_KRB5 select CRYPTO instead of depending on it.  This
unblocks the eventual removal of the selection of CRYPTO from NFSD_V4,
which will no longer be needed by nfsd itself due to switching to the
crypto library functions.  But NFSD_V4 selects RPCSEC_GSS_KRB5, which
still needs CRYPTO.  It makes more sense for RPCSEC_GSS_KRB5 to select
CRYPTO itself, like most other kconfig options that need CRYPTO do.

Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Acked-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
 2025-10-01 15:54:01 -04:00
Mike Snitzer 6304affe45 NFSD: Add io_cache_{read,write} controls to debugfs 
Add 'io_cache_read' to NFSD's debugfs interface so that any data
read by NFSD will either be:
- cached using page cache (NFSD_IO_BUFFERED=0)
- cached but removed from the page cache upon completion
  (NFSD_IO_DONTCACHE=1).

io_cache_read may be set by writing to:
  /sys/kernel/debug/nfsd/io_cache_read

Add 'io_cache_write' to NFSD's debugfs interface so that any data
written by NFSD will either be:
- cached using page cache (NFSD_IO_BUFFERED=0)
- cached but removed from the page cache upon completion
  (NFSD_IO_DONTCACHE=1).

io_cache_write may be set by writing to:
  /sys/kernel/debug/nfsd/io_cache_write

The default value for both settings is NFSD_IO_BUFFERED, which is
NFSD's existing behavior for both read and write. Changes to these
settings take immediate effect for all exports and NFS versions.

Currently only xfs and ext4 implement RWF_DONTCACHE. For file
systems that do not implement RWF_DONTCACHE, NFSD use only buffered
I/O when the io_cache setting is NFSD_IO_DONTCACHE.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
 2025-10-01 15:54:01 -04:00
Chuck Lever d6e80d48f9 NFSD: Do the grace period check in ->proc_layoutget 
RFC 8881 Section 18.43.3 states:
> If the metadata server is in a grace period, and does not persist
> layouts and device ID to device address mappings, then it MUST
> return NFS4ERR_GRACE (see Section 8.4.2.1).

Jeff observed that this suggests the grace period check is better
done by the individual layout type implementations, because checking
for the server grace period is unnecessary for some layout types.

Suggested-by: Jeff Layton <jlayton@kernel.org>
Link: https://lore.kernel.org/linux-nfs/7h5p5ktyptyt37u6jhpbjfd5u6tg44lriqkdc7iz7czeeabrvo@ijgxz27dw4sg/T/#t
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
 2025-10-01 15:54:01 -04:00
Dan Carpenter eafdd7e949 nfsd: delete unnecessary NULL check in __fh_verify() 
In commit 4a0de50a44bb ("nfsd: decouple the xprtsec policy check from
check_nfsd_access()") we added a NULL check on "rqstp" to earlier in
the function.  This check is no longer required so delete it.

Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Scott Mayhew <smayhew@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
 2025-10-01 15:54:01 -04:00
Sergey Bashirov e0963ce53b NFSD: Allow layoutcommit during grace period 
If the loca_reclaim field is set to TRUE, this indicates that the client
is attempting to commit changes to a layout after the restart of the
metadata server during the metadata server's recovery grace period. This
type of request may be necessary when the client has uncommitted writes
to provisionally allocated byte-ranges of a file that were sent to the
storage devices before the restart of the metadata server. See RFC 8881,
section 18.42.3.

Without this, the client is not able to increase the file size and commit
preallocated extents when the block/scsi layout server is restarted
during a write and is in a grace period. And when the grace period ends,
the client also cannot perform layoutcommit because the old layout state
becomes invalid, resulting in file corruption.

Co-developed-by: Konstantin Evtushenko <koevtushenko@yandex.com>
Signed-off-by: Konstantin Evtushenko <koevtushenko@yandex.com>
Signed-off-by: Sergey Bashirov <sergeybashirov@gmail.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
 2025-10-01 15:54:01 -04:00
Linus Torvalds f07c3695bf Merge tag 'firewire-updates-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394 
Pull firewire updates from Takashi Sakamoto:
 "This update includes the following changes:

   - Removal of the deprecated debug parameter from firewire-ohci module

   - Replacement of the module-local workqueue in 1394 OHCI PCI driver
     with a companion IRQ thread

   - Refactoring of bus management code

   - Additional minor code cleanup

  The existing tracepoints serve as an alternative to the removed debug
  parameter. The use of IRQ thread is experimental, as it handles 1394
  OHCI SelfIDComplete event only. It may be replaced in the future
  releases with another approach; e.g. by providing workqueue from core
  functionality"

* tag 'firewire-updates-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394: (43 commits)
  firewire: core: fix undefined reference error in ARM EABI
  Revert "firewire: core: disable bus management work temporarily during updating topology"
  Revert "firewire: core: shrink critical section of fw_card spinlock in bm_work"
  firewire: core: suppress overflow warning when computing jiffies from isochronous cycle
  firewire: core: minor code refactoring to delete useless local variable
  firewire: core; eliminate pick_me goto label
  firewire: core: code refactoring to split contention procedure for bus manager
  firewire: core: code refactoring for the case of generation mismatch
  firewire: core: use switch statement to evaluate transaction result to CSR_BUS_MANAGER_ID
  firewire: core: remove useless generation check
  firewire: core: use struct_size and flex_array_size in ioctl_add_descriptor
  firewire: core: shrink critical section of fw_card spinlock in bm_work
  firewire: core: disable bus management work temporarily during updating topology
  firewire: core: schedule bm_work item outside of spin lock
  firewire: core: annotate fw_destroy_nodes with must-hold-lock
  firewire: core: use spin lock specific to timer for split transaction
  firewire: core: use spin lock specific to transaction
  firewire: core: use spin lock specific to topology map
  firewire: core: maintain phy packet receivers locally in cdev layer
  firewire: core: use scoped_guard() to manage critical section to update topology
  ...
 2025-10-01 12:52:43 -07:00
Linus Torvalds d3479214c0 Merge tag 'backlight-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight 
Pull backlight updates from Lee Jones:
 "This set is comprised of a couple of small but important fixes and a
  number of clean-up and refactoring patches. The fixes correct an EPROM
  address for the LP8556 and improve memory allocation safety in the LED
  backlight driver.

  The remainder of the set is made up of refactoring work to the mp3309c
  driver and a series of patches to make a number of drivers more
  self-contained by including their own dependencies.

  Improvements & Fixes:
   - Correct the EPROM start address for the LP8556 to align with the
     device's datasheet.
   - Use devm_kcalloc() in the LED backlight driver for safer array
     allocation with overflow protection.

  Cleanups & Refactoring
   - Drop an unnecessary call to pwm_apply_args() in the mp3309c driver.
   - Modernize struct initialization in the mp3309c driver by using a
     compound literal instead of memset.
   - Make numerous drivers self-contained by including necessary headers
     directly rather than relying on transitive includes from the core
     backlight header"

* tag 'backlight-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
  backlight: rt4831: Include <linux/mod_devicetable.h>
  backlight: rave-sp: Include <linux/of.h> and <linux/mod_devicetable.h>
  backlight: led_bl: Include <linux/of.h>
  backlight: ktd2801: Include <linux/mod_devicetable.h>
  backlight: jornada720: Include <linux/io.h>
  backlight: da9052_bl: Include <linux/mod_devicetable.h>
  backlight: as3711_bl: Include <linux/of.h>
  backlight: apple_dwi_bl: Include <linux/mod_devicetable.h>
  backlight: Include <linux/of.h>
  video: backlight: lp855x_bl: Set correct EPROM start for LP8556
  backlight: led_bl: Use devm_kcalloc() for array space allocation
  backlight: mp3309c: Initialize backlight properties without memset
  backlight: mp3309c: Drop pwm_apply_args()
 2025-10-01 12:46:26 -07:00
Linus Torvalds b386ef6286 Merge tag 'leds-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds 
Pull LED updates from Lee Jones:
 "This submission is a mix of new features, a number of fixes, some
  clean-up/refactoring and a few Device Tree binding updates. The most
  significant changes include new device support for the IS31FL3236A and
  QNAP's status LEDs, a number of fixes for the Qualcomm flash, LP55xx,
  MAX77705 and QNAP MCU drivers, along with some generic LED consumer
  binding documentation and unification.

  New Support & Features:
   - Add support for the IS31FL3236A LED driver, including an optional
     22kHz PWM frequency setting.
   - Add support for the red and green status LEDs on QNAP MCU devices.

  Improvements & Fixes:
   - Fix an issue in the MAX77705 driver where an error value was
     assigned but not returned.
   - Correctly update the torch current clamp setting in the Qualcomm
     flash LED driver to prevent unexpected clamping.
   - Add a separate register map for the PMI8998 to the Qualcomm flash
     LED driver to handle its unique register layout.
   - Fix the state numbering for the USB LED in the QNAP MCU driver to
     avoid command conflicts.
   - Correct the memory programming address calculation for non-paged
     devices like the LP5562 in the LP55xx driver.
   - Add Device Tree support to the generic led_get() function, allowing
     LEDs to be looked up by name.

  Cleanups & Refactoring:
   - Fix a spelling mistake in the Kconfig help text for the BD2606MVV
     driver.
   - Use devm_mutex_init() in the IS31FL319x driver to simplify code.

  Device Tree Bindings Updates:
   - Drop the redundant '-db' suffix from the IS31FL319x binding.
   - Introduce generic LED consumer bindings for referencing LEDs via
     phandles.
   - Unify the 'leds' property across several bindings to use the new
     generic consumer binding.
   - Convert the AMS AS3645A LED controller binding to the DT schema
     format"

* tag 'leds-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds:
  dt-bindings: leds: as3645: Convert to DT schema
  leds: led-class: Add Device Tree support to led_get()
  dt-bindings: leds: Unify 'leds' property
  dt-bindings: leds: Add generic LED consumer documentation
  leds: is31fl319x: Use devm_mutex_init()
  leds: leds-lp55xx: Use correct address for memory programming
  dt-bindings: leds: issi,is31fl319x: Drop 'db' suffix duplicating dtschema
  leds: qnap-mcu: Add support for the red and green status LEDs
  leds: qnap-mcu: Fix state numbering for USB LED
  leds: flash: leds-qcom-flash: Add a separate register map for PMI8998
  leds: flash: leds-qcom-flash: Update torch current clamp setting
  leds: max77705: Function return instead of variable assignment
  leds: Kconfig: Fix spelling mistake "limitiation" -> "limitation"
  leds: leds-is31fl32xx: Add support for is31fl3236a
 2025-10-01 12:42:13 -07:00
Linus Torvalds b4918003cf Merge tag 'mfd-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd 
Pull MFD updates from Lee Jones:
 "This round of updates contains a fair amount of new device support, a
  couple of fixes and some refactoring. The most notable additions
  include new drivers for Loongson's Security Engine, RNG and TPM, new
  drivers for TI's TPS6594 Power Button and BQ257xx Charger ICs.

  The rest of the set provides a return value check fix and a
  refactoring to use a more modern GPIO API for the VEXPRESS sysreg
  driver, the removal of a deprecated IRQ ACK function from the MC13xxx
  RTC driver and a new DT binding for the aforementioned TI BQ257xx
  charger.

  New Support & Features:
   - Add a suite of drivers for the Loongson Security Engine, including
     the core controller, a Random Number Generator (RNG) and Trusted
     Platform Module (TPM) support.
   - Introduce support for the TI TPS6594 PMIC's power button, including
     the input driver, MFD cell registration, and a system power-off
     handler.
   - Add comprehensive support for the TI BQ257xx series of charger ICs,
     including the core MFD driver and a power supply driver for the
     charger functionality.

  Improvements & Fixes:
   - Check the return value of devm_gpiochip_add_data() in the VEXPRESS
     sysreg driver to prevent potential silent failures.

  Cleanups & Refactoring:
   - Add a MAINTAINERS entry for the new Loongson Security Engine
     drivers.
   - Convert the VEXPRESS sysreg driver to use the modern generic GPIO
     chip API.

  Removals:
   - Remove the deprecated and unused mc13xxx_irq_ack() function from
     the MC13xxx RTC, input and touchscreen drivers.

  Device Tree Bindings Updates:
   - Add device tree bindings for the TI BQ25703A charger"

* tag 'mfd-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (69 commits)
  mfd: simple-mfd-i2c: Add compatible string for LX2160ARDB
  mfd: simple-mfd-i2c: Keep compatible strings in alphabetical order
  dt-bindings: mfd: twl: Add missing sub-nodes for TWL4030 & TWL603x
  dt-bindings: watchdog: Add SMARC-sAM67 support
  dt-bindings: mfd: tps6594: Allow gpio-line-names
  mfd: intel-lpss: Add Intel Wildcat Lake LPSS PCI IDs
  mfd: 88pm886: Add GPADC cell
  mfd: vexpress-sysreg: Use more common syntax for compound literals
  mfd: rz-mtu3: Fix MTU5 NFCR register offset
  mfd: max77705: Setup the core driver as an interrupt controller
  mfd: cs42l43: Remove IRQ masking in suspend
  mfd: cs42l43: Move IRQ enable/disable to encompass force suspend
  mfd: ls2kbmc: Add Loongson-2K BMC reset function support
  mfd: ls2kbmc: Introduce Loongson-2K BMC core driver
  mfd: bd71828, bd71815: Prepare for power-supply support
  dt-bindings: mfd: aspeed: Add AST2700 SCU compatibles
  dt-bindings: mfd: Convert aspeed,ast2400-p2a-ctrl to DT schema
  dt-bindings: mfd: fsl,mc13xxx: Add buttons node
  dt-bindings: mfd: fsl,mc13xxx: Convert txt to DT schema
  mfd: macsmc: Add "apple,t8103-smc" compatible
  ...
 2025-10-01 12:04:12 -07:00
Linus Torvalds 2d27453624 Merge tag 'mmc-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc 
Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Improve RPMB frame handling code
   - Add support for a new max-sd-hs-hz DT property to limit frequency
   - Add support to manage regulator-under-voltage events
   - Support regulator-under-voltage for eMMC to mitigate data
     corruptions
   - Add mmc_read_tuning() to allow a host to validate its tuning
     sequence
   - Add some helpers to align checks for CMD23 support
   - Read the CCCR register for SDIO over SPI rather than the
     unsupported CMD7

  MMC host:
   - Add COMPILE_TEST option for a couple of drivers
   - Convert drivers to use the modern PM macros
   - dw_mmc-exynos: Enable support for the Exynos8890 variant
   - mmc_spi: Don't use crc ack during multiple block read
   - renesas_sdhi: Enable 64-bit polling mode for R-Car gen3 and
     RZ/G2L SoCs
   - rtsx_usb: Add support for over-current-protection
   - sdhci-cadence: Add support for multi-block read gap tuning
   - sdhci-msm:
       - Add support for tuning for SDR50 mode for SD cards
       - Enable support for the Lemans variant
   - sdhci-pci: Disable SD card clock before update for a few
     Intel platforms
   - sdhci-pxav3: Add support for UHS pinctrl settings
   - tmio: Add 64-bit read/write support in polling mode

  MEMSTICK:
   - Convert to use timeouts to prevent indefinite waiting
   - rtsx_usb: Add support for over-current-protection"

* tag 'mmc-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (77 commits)
  dt-bindings: mmc: samsung,exynos-dw-mshc: add specific compatible for exynos8890
  mmc: select REGMAP_MMIO with MMC_LOONGSON2
  mmc: add COMPILE_TEST to multiple drivers
  mmc: core: Improve RPMB frame handling code
  mmc: core: Fix variable shadowing in mmc_route_rpmb_frames()
  mmc: core: Parse and use the new max-sd-hs-hz DT property
  dt-bindings: mmc: controller: Add max-sd-hs-hz property
  mmc: sdhci-msm: Enable tuning for SDR50 mode for SD card
  dt-bindings: mmc: sdhci-msm: Document the Lemans compatible
  mmc: sh_mmcif: Remove dummy PM resume callback
  dt-bindings: mmc: sdhci-pxa: Add minItems to pinctrl-names
  mmc: sdio: Drop dev_pm_domain_detach() call
  mmc: dw_mmc-rockchip: use modern PM macros
  mmc: dw_mmc-pci: use modern PM macros
  mmc: dw_mmc-k3: use modern PM macros
  mmc: dw_mmc: exynos: use modern PM macros
  mmc: via-sdmmc: use modern PM macros
  mmc: sdhci-msm: use modern PM macros
  mmc: mtk-sd: use modern PM macros
  mmc: wmt-sdmmc: use modern PM macros
  ...
 2025-10-01 11:54:40 -07:00
Linus Torvalds e93bcbaa71 Merge tag 'pmdomain-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm 
Pull pmdomain updates from Ulf Hansson:

 - amlogic: Add support for S6/S7/S7D power-domains controller

 - imx: Add support for i.MX91 power-domains

 - marvell: Add support for PXA1908 power-domains

 - mediatek:
    - Add support for modem power sequence
    - Add support for RTFF Hardware in MT8196/MT6991

 - qcom: Align power-domain definitions for rpmpd

 - rockchip: Default to use power-domain support

 - thead: Create auxiliary device along with a corresponding reset
   driver

 - ti: Synchronize on/off state with HW-state for ti-sci power-domains

* tag 'pmdomain-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm: (25 commits)
  pmdomain: thead: Fix error pointer vs NULL bug in th1520_pd_reboot_init()
  pmdomain: thead: create auxiliary device for rebooting
  driver: reset: th1520-aon: add driver for poweroff/reboot via AON FW
  pmdomain: mediatek: airoha: convert from round_rate() to determine_rate()
  pmdomain: rockchip: enable ROCKCHIP_PM_DOMAINS with ARCH_ROCKCHIP
  pmdomain: marvell: Add PXA1908 power domains
  dt-bindings: clock: marvell,pxa1908: Add syscon compatible to apmu
  pmdomain: ti-sci: Set PD on/off state according to the HW state
  pmdomain: amlogic: Add support for S6 S7 S7D power domains controller
  dt-bindings: power: add Amlogic S6 S7 S7D power domains
  pmdomain: mediatek: Convert all SoCs to new style regmap retrieval
  pmdomain: mediatek: Add support for RTFF Hardware in MT8196/MT6991
  pmdomain: mediatek: Add support for modem power sequences
  pmdomain: mediatek: Move ctl sequences out of power_on/off functions
  pmdomain: mediatek: Handle SoCs with inverted SRAM power-down bits
  pmdomain: mediatek: Refactor bus protection regmaps retrieval
  dt-bindings: power: mediatek: Document access-controllers property
  pmdomain: remove unneeded 'fast_io' parameter in regmap_config
  pmdomain: imx93-blk-ctrl: mask DSI and PXP PD domain register on i.MX91
  pmdomain: imx93-blk-ctrl: use ARRAY_SIZE() instead of hardcode number
  ...
 2025-10-01 11:51:53 -07:00
Sakari Ailus d9f866b2bb ACPI: property: Return present device nodes only on fwnode interface 
fwnode_graph_get_next_subnode() may return fwnode backed by ACPI
device nodes and there has been no check these devices are present
in the system, unlike there has been on fwnode OF backend.

In order to provide consistent behaviour towards callers,
add a check for device presence by introducing
a new function acpi_get_next_present_subnode(), used as the
get_next_child_node() fwnode operation that also checks device
node presence.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Link: https://patch.msgid.link/20251001102636.1272722-2-sakari.ailus@linux.intel.com
[ rjw: Kerneldoc comment and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2025-10-01 20:47:49 +02:00
Linus Torvalds ea1c6c5925 Merge tag 'spi-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi 
Pull spi updates from Mark Brown:
 "There's one big core change in this release, Jonas Gorski has
  addressed the issues with multiple chip selects which makes things
  more robust and stable. Otherwise there's quite a bit of driver work,
  as well as some new drivers several existing drivers have had quite a
  bit of work done on them.

  Possibly the most interesting thing is the VirtIO driver, this is
  apparently useful for some automotive applications which want to keep
  as small and robust a host system as they can, moving less critical
  functionality into guests.

   - James Clark has done some substantial updates on the Freescale DSPI
     driver, porting in code from the BSP and building onm top of that
     to fix some bugs and increase performance

   - Jonas Gorski has fixed the issues with handling multple chip
     selects, making things more robust and scalable

   - Support for higher performance modes in the NXP FSPI driver from
     Haibo Chen

   - Removal of the obsolete S3C2443 driver, the underlying SoC support
     has been removed from the kernel

   - Support for Amlogic AL113L2, Atmel SAMA7D65 and SAM9x7 and for
     VirtIO controllers"

* tag 'spi-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (74 commits)
  spi: ljca: Remove Wentong's e-mail address
  spi: rename SPI_CS_CNT_MAX => SPI_DEVICE_CS_CNT_MAX
  spi: reduce device chip select limit again
  spi: don't check spi_controller::num_chipselect when parsing a dt device
  spi: drop check for validity of device chip selects
  spi: move unused device CS initialization to __spi_add_device()
  spi: keep track of number of chipselects in spi_device
  spi: fix return code when spi device has too many chipselects
  SPI: Add virtio SPI driver
  virtio-spi: Add virtio-spi.h
  virtio: Add ID for virtio SPI
  spi: rpc-if: Add resume support for RZ/G3E
  spi: rpc-if: Drop deprecated SIMPLE_DEV_PM_OPS
  spi: spi-qpic-snand: simplify clock handling by using devm_clk_get_enabled()
  spi: spi-nxp-fspi: Add OCT-DTR mode support
  spi: spi-nxp-fspi: add the support for sample data from DQS pad
  spi: spi-nxp-fspi: Add the DDR LUT command support
  spi: spi-nxp-fspi: set back to dll override mode when clock rate < 100MHz
  spi: spi-nxp-fspi: extract function nxp_fspi_dll_override()
  spi: atmel-quadspi: Add support for sama7d65 QSPI
  ...
 2025-10-01 11:46:31 -07:00
Linus Torvalds ad6657804c Merge tag 'regulator-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator 
Pull regulator updates from Mark Brown:
 "This is a very quiet release for regulator, almost all the changes are
  new drivers but we do also have some improvements for the Rust
  bindings.

   - Additional APIs added to the Rust bindings

   - Support for Maxim MAX77838, NXP PF0900 and PF5300, Richtek RT5133
     and SpacemiT P1"

* tag 'regulator-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (28 commits)
  regulator: dt-bindings: qcom,sdm845-refgen-regulator: document more platforms
  regulator: Fix MAX77838 selection
  regulator: spacemit: support SpacemiT P1 regulators
  regulator: max77838: add max77838 regulator driver
  dt-bindings: regulator: document max77838 pmic
  rust: regulator: add devm_enable and devm_enable_optional
  rust: regulator: remove Regulator<Dynamic>
  regulator: dt-bindings: rpi-panel: Split 7" Raspberry Pi 720x1280 v2 binding
  regulator: pf530x: Add a driver for the NXP PF5300 Regulator
  regulator: dt-bindings: nxp,pf530x: Add NXP PF5300/PF5301/PF5302 PMICs
  regulator: scmi: Use int type to store negative error codes
  regulator: core: Remove redundant ternary operators
  rust: regulator: use `to_result` for error handling
  regulator: consumer.rst: document bulk operations
  regulator: rt5133: Fix IS_ERR() vs NULL bug in rt5133_validate_vendor_info()
  regulator: bd718x7: Use kcalloc() instead of kzalloc()
  regulator: rt5133: Fix spelling mistake "regualtor" -> "regulator"
  regulator: remove unneeded 'fast_io' parameter in regmap_config
  regulator: rt5133: Add RT5133 PMIC regulator Support
  regulator: dt-bindings: Add Richtek RT5133 Support
  ...
 2025-10-01 11:43:54 -07:00
Linus Torvalds c252b8cf12 Merge tag 'regmap-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap 
Pull regmap updates from Mark Brown:
 "This just contains a few small fixes, there's been no substantial
  development on regmap this release cycle"

* tag 'regmap-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: use int type to store negative error codes
  regmap: Remove superfluous check for !config in __regmap_init()
  regmap: mmio: Add missing MODULE_DESCRIPTION()
 2025-10-01 11:41:51 -07:00
Linus Torvalds d5f7411411 Merge tag 'gpio-updates-for-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux 
Pull gpio updates from Bartosz Golaszewski:
 "There are two new drivers and support for more models in existing
  ones.

  The generic GPIO API has been reworked and all users converted
  which allowed us to move the fields specific to the generic GPIO
  implementation out of the high-level struct gpio_chip into its own
  structure that wraps the gpio_chip.

  Other than that, there's nothing too exciting. Mostly minor tweaks and
  fixes all over the place, some refactoring and some small new features
  in helper modules.

  GPIO core:
   - add support for sparse pin ranges to the glue between GPIO and
     pinctrl
   - use a common prefix across all GPIO descriptor flags for improved
     namespacing

  New drivers:
   - add new GPIO driver for the Nuvoton NCT6694
   - add new GPIO driver for MAX7360

  Driver improvements:
   - add support for Tegra 256 to the gpio-tegra186 driver
   - add support for Loongson-2K0300 to the gpio-loongson-64bit driver
   - refactor the gpio-aggregator module to expose its GPIO forwarder
     API to other in-kernel users (to enable merging of a new pinctrl
     driver that uses it)
   - convert all remaining drivers to using the modernized generic GPIO
     chip API and remove the old interface
   - stop displaying global GPIO numbers in debugfs output of controller
     drivers
   - extend the gpio-regmap helper with a new config option and improve
     its support for GPIO interrupts
   - remove redundant fast_io parameter from regmap configs in GPIO
     drivers that already use MMIO regmaps which imply it
   - add support for a new model in gpio-mmio: ixp4xx expansion bus
   - order includes alphabetically in a few drivers for better
     readability
   - use generic device properties where applicable
   - use devm_mutex_init() where applicable
   - extend build coverage of drivers by enabling more to be compiled
     with COMPILE_TEST enabled
   - allow building gpio-stmpe as a module
   - use dev_err_probe() where it makes sense in drivers

  Late driver fixes:
   - fix setting GPIO direction to output in gpio-mpfs

  Documentation:
   - document the usage of software nodes with GPIO chips

  Device-tree bindings:
   - Add DT bindings documents for new hardware: Tegra256, MAX7360
   - Document a new model in Loongson bindings: LS2K0300
   - Document a new model using the generic GPIO binding: IXP4xx
   - Convert the DT binding for fsl,mxs-pinctrl to YAML
   - fix the schema ID in the "trivial" GPIO schema
   - describe GPIO hogs in the generic GPIO binding"

* tag 'gpio-updates-for-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (122 commits)
  gpio: mpfs: fix setting gpio direction to output
  gpio: generic: move GPIO_GENERIC_ flags to the correct header
  gpio: generic: rename BGPIOF_ flags to GPIO_GENERIC_
  gpio: nomadik: fix the debugfs helper stub
  MAINTAINERS: Add entry on MAX7360 driver
  input: misc: Add support for MAX7360 rotary
  input: keyboard: Add support for MAX7360 keypad
  gpio: max7360: Add MAX7360 gpio support
  gpio: regmap: Allow to provide init_valid_mask callback
  gpio: regmap: Allow to allocate regmap-irq device
  pwm: max7360: Add MAX7360 PWM support
  pinctrl: Add MAX7360 pinctrl driver
  mfd: Add max7360 support
  dt-bindings: mfd: gpio: Add MAX7360
  rtc: Add Nuvoton NCT6694 RTC support
  hwmon: Add Nuvoton NCT6694 HWMON support
  watchdog: Add Nuvoton NCT6694 WDT support
  can: Add Nuvoton NCT6694 CANFD support
  i2c: Add Nuvoton NCT6694 I2C support
  gpio: Add Nuvoton NCT6694 GPIO support
  ...
 2025-10-01 11:34:12 -07:00
James Clark 9f0fa21379 perf test: Extend branch stack sampling test for Arm64 BRBE 
BRBE emits IRQ and ERET branches for branching and returning from
trapped instructions. Add a test that loops on a trapped instruction
(MRS - Read special register) for this.

Extend the expected 'any_call' branches to include FAULT_DATA and
FAULT_INST as these are emitted by BRBE.

Reviewed-by: Ian Rogers <irogers@google.com>
Co-developed-by: German Gomez <german.gomez@arm.com>
Signed-off-by: German Gomez <german.gomez@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Cc: Adam Young <admiyo@os.amperecomputing.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Ingo Molnar <mingo@redhat.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: Rob Herring <robh@kernel.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2025-10-01 15:31:49 -03:00
James Clark 11e59335b0 perf test: Add syscall and address tests to brstack test 
Test that SYSCALL type branches are emitted from the expected 'getppid'
symbol. Test that when only 'k' is used, sources addresses are all in
the kernel. Test that no kernel addresses leak by checking for them in
the 'u' test.

Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Cc: Adam Young <admiyo@os.amperecomputing.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.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: Rob Herring <robh@kernel.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2025-10-01 15:31:34 -03:00
James Clark f15548b277 perf test: Refactor brstack test 
check_branches() will be used by other tests in a later commit so make
it a function. And the any_call filters are duplicated and will also
be extended in a later commit, so move them to a variable.

No functional changes intended.

Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Cc: Adam Young <admiyo@os.amperecomputing.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.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: Rob Herring <robh@kernel.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2025-10-01 15:30:58 -03:00
Ian Rogers b91917c0c6 perf bpf_counter: Fix handling of cpumap fixing hybrid 
Don't open evsels on all CPUs, open them just on the CPUs they
support. This avoids opening say an e-core event on a p-core and
getting a failure - achieve this by getting rid of the "all_cpu_map".

In install_pe functions don't use the cpu_map_idx as a CPU number,
translate the cpu_map_idx, which is a dense index into the cpu_map
skipping holes at the beginning, to a proper CPU number.

Before:
```
$ perf stat --bpf-counters -a -e cycles,instructions -- sleep 1

 Performance counter stats for 'system wide':

   <not supported>      cpu_atom/cycles/
       566,270,672      cpu_core/cycles/
   <not supported>      cpu_atom/instructions/
       572,792,836      cpu_core/instructions/           #    1.01  insn per cycle

       1.001595384 seconds time elapsed
```

After:
```
$ perf stat --bpf-counters -a -e cycles,instructions -- sleep 1

 Performance counter stats for 'system wide':

       443,299,201      cpu_atom/cycles/
     1,233,919,737      cpu_core/cycles/
       213,634,112      cpu_atom/instructions/           #    0.48  insn per cycle
     2,758,965,527      cpu_core/instructions/           #    2.24  insn per cycle

       1.001699485 seconds time elapsed
```

Fixes: 7fac83aaf2 ("perf stat: Introduce 'bperf' to share hardware PMCs with BPF")
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: bpf@vger.kernel.org
Cc: Gabriele Monaco <gmonaco@redhat.com>
Cc: Howard Chu <howardchu95@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Tengda Wu <wutengda@huaweicloud.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2025-10-01 15:27:27 -03:00
Ian Rogers 8c519a825b perf bpf_counter: Move header declarations into C code 
Reduce the API surface that is in bpf_counter.h, this helps compiler
analysis like unused static function, makes it easier to set a
breakpoint and just makes it easier to see the code is self contained.

When code is shared between BPF C code, put it inside HAVE_BPF_SKEL.
Move transitively found #includes into appropriate C files.

No functional change.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Gabriele Monaco <gmonaco@redhat.com>
Cc: Howard Chu <howardchu95@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Tengda Wu <wutengda@huaweicloud.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2025-10-01 15:27:02 -03:00
Bharath SM ac3ad9845b smb: client: show lease state as R/H/W (or NONE) in open_files 
Print the lease/oplock caching state for each open file as a
compact string of letters: R (read), H (handle), W (write).

Signed-off-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
 2025-10-01 12:41:46 -05:00
Linus Torvalds c050daf69f Merge tag 'pwm/for-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux 
Pull pwm updates from Uwe Kleine-König:
 "The core highlights for this cycle are:

   - The pca9586 driver was converted to the waveform API

   - Waveform drivers automatically provide a gpio chip to make PWMs
     usable as GPIOs (The pca9586 driver did that in a driver specific
     implementation before)

  Otherwise it's the usual mix of fixes and device tree and driver
  changes to support new hardware variants"

* tag 'pwm/for-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux: (30 commits)
  pwm: cros-ec: Avoid -Wflex-array-member-not-at-end warnings
  dt-bindings: pwm: samsung: add exynos8890 compatible
  dt-bindings: pwm: apple,s5l-fpwm: Add t6020-fpwm compatible
  dt-bindings: pwm: nxp,lpc1850-sct-pwm: Minor whitespace cleanup in example
  pwm: pca9586: Convert to waveform API
  pwm: pca9685: Drop GPIO support
  pwm: pca9685: Make use of register caching in regmap
  pwm: pca9685: Use bulk write to atomicially update registers
  pwm: pca9685: Don't disable hardware in .free()
  pwm: Add the S32G support in the Freescale FTM driver
  dt-bindings: pwm: fsl,vf610-ftm-pwm: Add compatible for s32g2 and s32g3
  pwm: mediatek: Lock and cache clock rate
  pwm: mediatek: Fix various issues in the .apply() callback
  pwm: mediatek: Implement .get_state() callback
  pwm: mediatek: Initialize clks when the hardware is enabled at probe time
  pwm: mediatek: Rework parameters for clk helper function
  pwm: mediatek: Introduce and use a few more register defines
  pwm: mediatek: Simplify representation of channel offsets
  pwm: tiecap: Document behaviour of hardware disable
  pwm: Provide a gpio device for waveform drivers
  ...
 2025-10-01 10:33:17 -07:00
Linus Torvalds 989253cc46 Merge tag 'hwmon-for-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging 
Pull hwmon updates from Guenter Roeck:
 "New drivers:

   - Kontron SMARC-sAM67

   - GPD device sensors

   - MP29502

   - MP2869, MP29608, MP29612 and MP29816 series

  Added chip support to existing drivers:

   - asus-ec-sensors:
	Add B650E-I
	Add PRIME Z270-A
	Add Pro WS WRX90E-SAGE SE
	Add ROG STRIX X670E-E GAMING WIFI
	Add ROG STRIX X870-I GAMING WIFI
	Add ROG STRIX X870E-E GAMING WIFI
	Add ROG STRIX Z690-E GAMING WIFI
	Add ROG STRIX Z790E GAMING WIFI II
	Add STRIX B850-I GAMING WIFI
	Add TUF GAMING X670E PLUS WIFI
	Add X670E-I GAMING WIFI
	Add Z790-I GAMING WIFI

   - dell-smm: Add support for Dell OptiPlex 7040

   - ina238: Major cleanup, and
  	Add support for INA700
	Add support for INA780

   - k10temp:
  	Add device ID for Strix Halo
	Add support for AMD Family 1Ah-based models

   - lenovo-ec-sensors: Update P8 supprt

   - lm75: Add NXP P3T1750 support

   - pmbus/adm1275: Add sq24905c support

   - pmbus/isl68137: Add support for Renesas RAA228244 and RAA228246

   - pmbus/mp5990: Add support for MP5998

   - sht21: Add support for SHT20, SHT25

   - sl28cpld: Add sa67mcu compatible

  Other notable changes:

   - core:
	Handle locking internally
	Introduce 64-bit energy attribute support

   - cros_ec: Register into thermal framework, improve PWM control

   - lm75: allow interrupt for ti,tmp75

   - mlxreg-fan: Add support for new flavour of capability register

   - sbtsi_temp: AMD CPU extended temperature range support

   - sht21: Add devicetree support

  Various other minor improvements and fixes"

* tag 'hwmon-for-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (86 commits)
  dt-bindings: hwmon: (lm75) allow interrupt for ti,tmp75
  hwmon: (mlxreg-fan) Add support for new flavour of capability register
  hwmon: (mlxreg-fan) Separate methods of fan setting coming from different subsystems
  hwmon: (cros_ec) register fans into thermal framework cooling devices
  hwmon: (cros_ec) add PWM control over fans
  platform/chrome: update pwm fan control host commands
  hwmon: add SMARC-sAM67 support
  dt-bindings: hwmon: sl28cpld: add sa67mcu compatible
  hwmon: (asus-ec-sensors) add TUF GAMING X670E PLUS WIFI
  hwmon: (dell-smm) Add support for Dell OptiPlex 7040
  hwmon: (dell-smm) Add support for automatic fan mode
  hwmon: (gpd-fan) complete Kconfig dependencies
  hwmon: (asus-ec-sensors) increase timeout for locking ACPI mutex
  hwmon: (asus-ec-sensors) add ROG STRIX X870E-E GAMING WIFI
  hwmon: (dell-smm) Move clamping of fan speed out of i8k_set_fan()
  hwmon: (dell-smm) Remove Dell Precision 490 custom config data
  hwmon: (asus-ec-sensors) add ROG STRIX X670E-E GAMING WIFI
  hwmon: (gpd-fan) Fix range check for pwm input
  hwmon: (pmbus/mp5990) add support for MP5998
  dt-bindings: trivial-devices: add mps,mp5998
  ...
 2025-10-01 09:42:51 -07:00
Linus Torvalds 57cf7a603b Merge tag 'chrome-platform-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux 
Pull chrome platform updates from Tzung-Bi Shih:
 "New:
   - Add a new API cros_ec_device_registered() for checking if the
     cros_ec_deivce is ready

  Improvements:
   - Use TRAILING_OVERLAP() to fix -Wflex-array-member-not-at-end
     warning
   - Defer probe until parent EC device is ready in cros_ec_keyb

  Cleanups:
   - Remove redundant and simplify code in cros_ec_chardev
   - Centralize cros_ec_device allocation and initialization to remove
     duplicate code"

* tag 'chrome-platform-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
  Input: cros_ec_keyb - Defer probe until parent EC device is registered
  platform/chrome: cros_ec: Add a flag to track registration state
  platform/chrome: cros_ec: Separate initialization from cros_ec_register()
  platform/chrome: Centralize common cros_ec_device initialization
  platform/chrome: Centralize cros_ec_device allocation
  platform/chrome: wilco_ec: Remove redundant semicolons
  platform/chrome: cros_ec: Avoid -Wflex-array-member-not-at-end warning
  platform/chrome: cros_ec_chardev: Decouple fops from struct cros_ec_dev
  platform/chrome: cros_ec_chardev: Remove redundant struct field
 2025-10-01 09:16:28 -07:00
Linus Torvalds eb3289fc47 Merge tag 'driver-core-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core 
Pull driver core updates from Danilo Krummrich:
 "Auxiliary:
   - Drop call to dev_pm_domain_detach() in auxiliary_bus_probe()
   - Optimize logic of auxiliary_match_id()

  Rust:
   - Auxiliary:
      - Use primitive C types from prelude

   - DebugFs:
      - Add debugfs support for simple read/write files and custom
        callbacks through a File-type-based and directory-scope-based
        API
      - Sample driver code for the File-type-based API
      - Sample module code for the directory-scope-based API

   - I/O:
      - Add io::poll module and implement Rust specific
        read_poll_timeout() helper

   - IRQ:
      - Implement support for threaded and non-threaded device IRQs
        based on (&Device<Bound>, IRQ number) tuples (IrqRequest)
      - Provide &Device<Bound> cookie in IRQ handlers

   - PCI:
      - Support IRQ requests from IRQ vectors for a specific
        pci::Device<Bound>
      - Implement accessors for subsystem IDs, revision, devid and
        resource start
      - Provide dedicated pci::Vendor and pci::Class types for vendor
        and class ID numbers
      - Implement Display to print actual vendor and class names; Debug
        to print the raw ID numbers
      - Add pci::DeviceId::from_class_and_vendor() helper
      - Use primitive C types from prelude
      - Various minor inline and (safety) comment improvements

   - Platform:
      - Support IRQ requests from IRQ vectors for a specific
        platform::Device<Bound>

   - Nova:
      - Use pci::DeviceId::from_class_and_vendor() to avoid probing
        non-display/compute PCI functions

   - Misc:
      - Add helper for cpu_relax()
      - Update ARef import from sync::aref

  sysfs:
   - Remove bin_attrs_new field from struct attribute_group
   - Remove read_new() and write_new() from struct bin_attribute

  Misc:
   - Document potential race condition in get_dev_from_fwnode()
   - Constify node_group argument in software node registration
     functions
   - Fix order of kernel-doc parameters in various functions
   - Set power.no_pm flag for faux devices
   - Set power.no_callbacks flag along with the power.no_pm flag
   - Constify the pmu_bus bus type
   - Minor spelling fixes"

* tag 'driver-core-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (43 commits)
  rust: pci: display symbolic PCI vendor names
  rust: pci: display symbolic PCI class names
  rust: pci: fix incorrect platform reference in PCI driver probe doc comment
  rust: pci: fix incorrect platform reference in PCI driver unbind doc comment
  perf: make pmu_bus const
  samples: rust: Add scoped debugfs sample driver
  rust: debugfs: Add support for scoped directories
  samples: rust: Add debugfs sample driver
  rust: debugfs: Add support for callback-based files
  rust: debugfs: Add support for writable files
  rust: debugfs: Add support for read-only files
  rust: debugfs: Add initial support for directories
  driver core: auxiliary bus: Optimize logic of auxiliary_match_id()
  driver core: auxiliary bus: Drop dev_pm_domain_detach() call
  driver core: Fix order of the kernel-doc parameters
  driver core: get_dev_from_fwnode(): document potential race
  drivers: base: fix "publically"->"publicly"
  driver core/PM: Set power.no_callbacks along with power.no_pm
  driver core: faux: Set power.no_pm for faux devices
  rust: pci: inline several tiny functions
  ...
 2025-10-01 08:39:23 -07:00
Christian Bruel c86a24dfa9 MAINTAINERS: Add entry for ST STM32MP25 PCIe drivers 
Add myself as maintainer of STM32MP25 PCIe host and PCIe endpoint drivers.

Signed-off-by: Christian Bruel <christian.bruel@foss.st.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20250820075411.1178729-8-christian.bruel@foss.st.com
 2025-10-01 09:54:18 -05:00
Christian Bruel 151f3d29ba PCI: stm32-ep: Add PCIe Endpoint support for STM32MP25 
Add driver to configure the STM32MP25 SoC PCIe controller based on the
DesignWare PCIe core in endpoint mode. Controller support 2.5 and 5 GT/s
data rates and uses the common reference clock provided by the host.

The PCIe core_clk receives the pipe0_clk from the ComboPHY as input,
and the ComboPHY PLL must be locked for pipe0_clk to be ready.
Consequently, PCIe core registers cannot be accessed until the ComboPHY is
fully initialised and REFCLK is enabled and ready.

Signed-off-by: Christian Bruel <christian.bruel@foss.st.com>
[mani: reworded description]
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
[bhelgaas: squash in https://patch.msgid.link/20250902122641.269725-1-christian.bruel@foss.st.com
to remove redundant link_status checks]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20250820075411.1178729-7-christian.bruel@foss.st.com
 2025-10-01 09:54:18 -05:00
Christian Bruel b8ef623f18 dt-bindings: PCI: Add STM32MP25 PCIe Endpoint bindings 
STM32MP25 PCIe Controller is based on the DesignWare core configured as
endpoint mode from the SYSCFG register.

Signed-off-by: Christian Bruel <christian.bruel@foss.st.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250820075411.1178729-6-christian.bruel@foss.st.com
 2025-10-01 09:54:18 -05:00
Christian Bruel 63a562b33a PCI: stm32: Add PCIe host support for STM32MP25 
Add driver for the STM32MP25 SoC PCIe controller based on the DesignWare
PCIe core. Controller supports 2.5 and 5 GT/s data rates, MSI via GICv2m,
Single Virtual Channel, Single Function and WAKE# GPIO.

Signed-off-by: Christian Bruel <christian.bruel@foss.st.com>
[mani: reworded description]
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
[bhelgaas: squash error handling cleanup from Christophe JAILLET
<christophe.jaillet@wanadoo.fr>:
https://patch.msgid.link/e69ade3edcec4da2d5bfc66e0d03bbcb5a857021.1759169956.git.christophe.jaillet@wanadoo.fr]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20250820075411.1178729-5-christian.bruel@foss.st.com
 2025-10-01 09:53:37 -05:00
Ma Ke a8de554774 of: unittest: Fix device reference count leak in of_unittest_pci_node_verify 
In of_unittest_pci_node_verify(), when the add parameter is false,
device_find_any_child() obtains a reference to a child device. This
function implicitly calls get_device() to increment the device's
reference count before returning the pointer. However, the caller
fails to properly release this reference by calling put_device(),
leading to a device reference count leak. Add put_device() in the else
branch immediately after child_dev is no longer needed.

As the comment of device_find_any_child states: "NOTE: you will need
to drop the reference with put_device() after use".

Found by code review.

Cc: stable@vger.kernel.org
Fixes: 26409dd045 ("of: unittest: Add pci_dt_testdrv pci driver")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
 2025-10-01 09:33:23 -05:00
Nathan Chancellor 4335c4496b btrfs: fix PAGE_SIZE format specifier in open_ctree() 
There is an instance of -Wformat when targeting 32-bit architectures due
to using a 'size_t' specifier (which is 'unsigned int' for 32-bit
platforms) to print PAGE_SIZE:

  In file included from fs/btrfs/compression.h:17,
                   from fs/btrfs/extent_io.h:15,
                   from fs/btrfs/locking.h:13,
                   from fs/btrfs/ctree.h:19,
                   from fs/btrfs/disk-io.c:22:
  fs/btrfs/disk-io.c: In function 'open_ctree':
  include/linux/kern_levels.h:5:25: error: format '%zu' expects argument of type 'size_t', but argument 4 has type 'long unsigned int' [-Werror=format=]
  ...
  fs/btrfs/disk-io.c:3398:17: note: in expansion of macro 'btrfs_warn'
   3398 |                 btrfs_warn(fs_info,
        |                 ^~~~~~~~~~

PAGE_SIZE is consistently defined as an 'unsigned long' in
include/vsdo/page.h so use '%lu' to clear up the warning.

Fixes: 98077f7f21 ("btrfs: enable experimental bs > ps support")
Reviewed-by: Qu Wenruo <wqu@suse.com>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2025-10-01 16:27:28 +02:00
Suchit Karunakaran 60c38a6d38 perf annotate: Use architecture-agnostic register limit 
Remove the arch-specific guard around TYPE_STATE_MAX_REGS and define it
as 32 for all architectures.

The architecture that perf is built on may not match the architecture
that produced the perf.data file, so relying on __powerpc__ or similar
is fragile.

Using 32 as a fixed upper bound is safe since it is greater than the
previous maximum of 16.

Add a comment to clarify that TYPE_STATE_MAX_REGS is an arch-independent
maximum rather than a build-time choice.

Suggested-by: Ian Rogers <irogers@google.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Suchit Karunakaran <suchitkarunakaran@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2025-10-01 11:23:32 -03:00
Kan Liang 6c153cc468 MAINTAINERS: Remove myself from perf_events subsystem 
I'm stepping down as the Reviewer of perf_events subsystem.
It has been an honor and a pleasure to work with everyone to improve the
perf_events subsystem. However, due to personal reasons, I have to leave
Intel. I believe it would be difficult for me to continue in this role
any further.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.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>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2025-10-01 11:22:05 -03:00
Athira Rajeev a0dfb18f7d perf script: Enable to present DTL entries 
The process_event() function in "builtin-script.c" invokes
perf_sample__fprintf_synth() for displaying PERF_TYPE_SYNTH
type events.

   if (attr->type == PERF_TYPE_SYNTH && PRINT_FIELD(SYNTH))
   	perf_sample__fprintf_synth(sample, evsel, fp);

perf_sample__fprintf_synth() process the sample depending on the value
in evsel->core.attr.config. Introduce perf_sample__fprintf_synth_vpadtl()
and invoke this for PERF_SYNTH_POWERPC_VPA_DTL

Sample output:

   ./perf record -a -e sched:*,vpa_dtl/dtl_all/ -c 1000000000 sleep 1
   [ perf record: Woken up 1 times to write data ]
   [ perf record: Captured and wrote 0.300 MB perf.data ]

   ./perf script
            perf   13322 [002]   233.835807:                     sched:sched_switch: perf:13322 [120] R ==> migration/2:27 [0]
     migration/2      27 [002]   233.835811:               sched:sched_migrate_task: comm=perf pid=13322 prio=120 orig_cpu=2 dest_cpu=3
     migration/2      27 [002]   233.835818:               sched:sched_stat_runtime: comm=migration/2 pid=27 runtime=9214 [ns]
     migration/2      27 [002]   233.835819:                     sched:sched_switch: migration/2:27 [0] S ==> swapper/2:0 [120]
         swapper       0 [002]   233.835822:                                vpa-dtl: timebase: 338954486062657 dispatch_reason:decrementer_interrupt, preempt_reason:H_CEDE, enqueue_to_dispatch_time:435,			ready_to_enqueue_time:0, waiting_to_ready_time:34775058, processor_id: 202 c0000000000f8094 plpar_hcall_norets_notrace+0x18 ([kernel.kallsyms])
         swapper       0 [001]   233.835886:                                vpa-dtl: timebase: 338954486095398 dispatch_reason:priv_doorbell, preempt_reason:H_CEDE, enqueue_to_dispatch_time:542,			ready_to_enqueue_time:0, waiting_to_ready_time:1245360, processor_id: 201 c0000000000f8094 plpar_hcall_norets_notrace+0x18 ([kernel.kallsyms])

Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Athira Rajeev <atrajeev@linux.ibm.com>
Tested-by: Tejas Manhas <tejas05@linux.ibm.com>
Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
Cc: Aboorva Devarajan <aboorvad@linux.ibm.com>
Cc: Aditya Bodkhe <Aditya.Bodkhe1@ibm.com>
Cc: Hari Bathini <hbathini@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Shrikanth Hegde <sshegde@linux.ibm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2025-10-01 11:22:05 -03:00
Athira Rajeev 8644834a48 perf powerpc: Process the DTL entries in queue and deliver samples 
Create samples from DTL entries for displaying in 'perf report'
and 'perf script'.

When the different PERF_RECORD_XX records are processed from perf
session, powerpc_vpadtl_process_event() will be invoked.

For each of the PERF_RECORD_XX record, compare the timestamp of perf
record with timestamp of top element in the auxtrace heap.

Process the auxtrace queue if the timestamp of element from heap is
lower than timestamp from entry in perf record.

Sometimes it could happen that one buffer is only partially processed.

if the timestamp of occurrence of another event is more than currently
processed element in the queue, it will move on to next perf record.

So keep track of position of buffer to continue processing next time.

Update the timestamp of the auxtrace heap with the timestamp of last
processed entry from the auxtrace buffer.

Generate perf sample for each entry in the dispatch trace log.

Fill in the sample details:
- sample ip is picked from srr0 field of dtl_entry
- sample cpu is picked from processor_id of dtl_entry
- sample id is from sample_id of powerpc_vpadtl
- cpumode is set to PERF_RECORD_MISC_KERNEL
- Additionally save the details in raw_data of sample.

This is to print the relevant fields in perf_sample__fprintf_synth()
when called from builtin-script

The sample is processed by calling perf_session__deliver_synth_event()
so that it gets included in perf report.

Sample Output:

  ./perf record -a -e sched:*,vpa_dtl/dtl_all/ -c 1000000000 sleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.300 MB perf.data ]

  ./perf report

  # Samples: 321  of event 'vpa-dtl'
  # Event count (approx.): 321
  #
  # Children      Self  Command  Shared Object      Symbol
  # ........  ........  .......  .................  ..............................
  #
     100.00%   100.00%  swapper  [kernel.kallsyms]  [k] plpar_hcall_norets_notrace

Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Athira Rajeev <atrajeev@linux.ibm.com>
Tested-by: Tejas Manhas <tejas05@linux.ibm.com>
Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
Cc: Aboorva Devarajan <aboorvad@linux.ibm.com>
Cc: Aditya Bodkhe <Aditya.Bodkhe1@ibm.com>
Cc: Hari Bathini <hbathini@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Shrikanth Hegde <sshegde@linux.ibm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2025-10-01 11:22:05 -03:00