linux-toradex.git/drivers/thermal, branch v6.12-rc4

Merge tag 'pm-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2024-10-11T18:41:20+00:00

Pull power management fixes from Rafael Wysocki:
 "These address two issues in the TPMI module of the Intel RAPL power
  capping driver and one issue in the processor part of the Intel
  int340x thermal driver, update a CPU ID list and register definitions
  needed for RAPL PL4 support and remove some unused code.

  Specifics:

   - Fix the TPMI_RAPL_REG_DOMAIN_INFO register offset in the TPMI part
     of the Intel RAPL power capping driver, make it ignore minor
     hardware version mismatches (which only indicate exposing
     additional features) and update register definitions in it to
     enable PL4 support (Zhang Rui)

   - Add Arrow Lake-U to the list of processors supporting PL4 in the
     MSR part of the Intel RAPL power capping driver (Sumeet Pawnikar)

   - Remove excess pci_disable_device() calls from the processor part of
     the int340x thermal driver to address a warning triggered during
     module unload and remove unused CPU hotplug code related to RAPL
     support from it (Zhang Rui)"

* tag 'pm-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: intel: int340x: processor: Add MMIO RAPL PL4 support
  thermal: intel: int340x: processor: Remove MMIO RAPL CPU hotplug support
  powercap: intel_rapl_msr: Add PL4 support for Arrowlake-U
  powercap: intel_rapl_tpmi: Ignore minor version change
  thermal: intel: int340x: processor: Fix warning during module unload
  powercap: intel_rapl_tpmi: Fix bogus register reading

Merge tag 'thermal-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2024-10-11T18:35:30+00:00

Pull thermal control fixes from Rafael Wysocki:
 "Address possible use-after-free scenarios during the processing of
  thermal netlink commands and during thermal zone removal (Rafael
  Wysocki)"

* tag 'thermal-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: core: Free tzp copy along with the thermal zone
  thermal: core: Reference count the zone in thermal_zone_get_by_id()

thermal: intel: int340x: processor: Add MMIO RAPL PL4 support

2024-10-08T19:39:33+00:00

Similar to the MSR RAPL interface, MMIO RAPL supports PL4 too, so add
MMIO RAPL PL4d support to the processor_thermal driver.

As a result, the powercap sysfs for MMIO RAPL will show a new "peak
power" constraint.

Signed-off-by: Zhang Rui 
Reviewed-by: Srinivas Pandruvada 
Link: https://patch.msgid.link/20240930081801.28502-7-rui.zhang@intel.com
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki

thermal: intel: int340x: processor: Remove MMIO RAPL CPU hotplug support

2024-10-08T19:39:33+00:00

CPU0/package0 is always online and the MMIO RAPL driver runs on single
package systems only, so there is no need to handle CPU hotplug in it.

Always register a RAPL package device for package 0 and remove the
unnecessary CPU hotplug support.

Signed-off-by: Zhang Rui 
Reviewed-by: Srinivas Pandruvada 
Link: https://patch.msgid.link/20240930081801.28502-6-rui.zhang@intel.com
[ rjw: Subject edits ]
Signed-off-by: Rafael J. Wysocki

thermal: intel: int340x: processor: Fix warning during module unload

2024-10-07T18:10:56+00:00

The processor_thermal driver uses pcim_device_enable() to enable a PCI
device, which means the device will be automatically disabled on driver
detach.  Thus there is no need to call pci_disable_device() again on it.

With recent PCI device resource management improvements, e.g. commit
f748a07a0b64 ("PCI: Remove legacy pcim_release()"), this problem is
exposed and triggers the warining below.

 [  224.010735] proc_thermal_pci 0000:00:04.0: disabling already-disabled device
 [  224.010747] WARNING: CPU: 8 PID: 4442 at drivers/pci/pci.c:2250 pci_disable_device+0xe5/0x100
 ...
 [  224.010844] Call Trace:
 [  224.010845]  
 [  224.010847]  ? show_regs+0x6d/0x80
 [  224.010851]  ? __warn+0x8c/0x140
 [  224.010854]  ? pci_disable_device+0xe5/0x100
 [  224.010856]  ? report_bug+0x1c9/0x1e0
 [  224.010859]  ? handle_bug+0x46/0x80
 [  224.010862]  ? exc_invalid_op+0x1d/0x80
 [  224.010863]  ? asm_exc_invalid_op+0x1f/0x30
 [  224.010867]  ? pci_disable_device+0xe5/0x100
 [  224.010869]  ? pci_disable_device+0xe5/0x100
 [  224.010871]  ? kfree+0x21a/0x2b0
 [  224.010873]  pcim_disable_device+0x20/0x30
 [  224.010875]  devm_action_release+0x16/0x20
 [  224.010878]  release_nodes+0x47/0xc0
 [  224.010880]  devres_release_all+0x9f/0xe0
 [  224.010883]  device_unbind_cleanup+0x12/0x80
 [  224.010885]  device_release_driver_internal+0x1ca/0x210
 [  224.010887]  driver_detach+0x4e/0xa0
 [  224.010889]  bus_remove_driver+0x6f/0xf0
 [  224.010890]  driver_unregister+0x35/0x60
 [  224.010892]  pci_unregister_driver+0x44/0x90
 [  224.010894]  proc_thermal_pci_driver_exit+0x14/0x5f0 [processor_thermal_device_pci]
 ...
 [  224.010921] ---[ end trace 0000000000000000 ]---

Remove the excess pci_disable_device() calls.

Fixes: acd65d5d1cf4 ("thermal/drivers/int340x/processor_thermal: Add PCI MMIO based thermal driver")
Signed-off-by: Zhang Rui 
Reviewed-by: Srinivas Pandruvada 
Link: https://patch.msgid.link/20240930081801.28502-3-rui.zhang@intel.com
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki

thermal: core: Free tzp copy along with the thermal zone

2024-10-04T17:05:08+00:00

The object pointed to by tz->tzp may still be accessed after being
freed in thermal_zone_device_unregister(), so move the freeing of it
to the point after the removal completion has been completed at which
it cannot be accessed any more.

Fixes: 3d439b1a2ad3 ("thermal/core: Alloc-copy-free the thermal zone parameters structure")
Cc: 6.8+  # 6.8+
Signed-off-by: Rafael J. Wysocki 
Reviewed-by: Lukasz Luba 
Link: https://patch.msgid.link/4623516.LvFx2qVVIh@rjwysocki.net

thermal: core: Reference count the zone in thermal_zone_get_by_id()

2024-10-04T17:05:08+00:00

There are places in the thermal netlink code where nothing prevents
the thermal zone object from going away while being accessed after it
has been returned by thermal_zone_get_by_id().

To address this, make thermal_zone_get_by_id() get a reference on the
thermal zone device object to be returned with the help of get_device(),
under thermal_list_lock, and adjust all of its callers to this change
with the help of the cleanup.h infrastructure.

Fixes: 1ce50e7d408e ("thermal: core: genetlink support for events/cmd/sampling")
Cc: 6.8+  # 6.8+
Signed-off-by: Rafael J. Wysocki 
Reviewed-by: Lukasz Luba 
Link: https://patch.msgid.link/6112242.lOV4Wx5bFT@rjwysocki.net

move asm/unaligned.h to linux/unaligned.h

2024-10-02T21:23:23+00:00

asm/unaligned.h is always an include of asm-generic/unaligned.h;
might as well move that thing to linux/unaligned.h and include
that - there's nothing arch-specific in that header.

auto-generated by the following:

for i in `git grep -l -w asm/unaligned.h`; do
	sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i
done
for i in `git grep -l -w asm-generic/unaligned.h`; do
	sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i
done
git mv include/asm-generic/unaligned.h include/linux/unaligned.h
git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h
sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild
sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h

[tree-wide] finally take no_llseek out

2024-09-27T15:18:43+00:00

no_llseek had been defined to NULL two years ago, in commit 868941b14441
("fs: remove no_llseek")

To quote that commit,

  At -rc1 we'll need do a mechanical removal of no_llseek -

  git grep -l -w no_llseek | grep -v porting.rst | while read i; do
	sed -i '/\/d' $i
  done

  would do it.

Unfortunately, that hadn't been done.  Linus, could you do that now, so
that we could finally put that thing to rest? All instances are of the
form
	.llseek = no_llseek,
so it's obviously safe.

Signed-off-by: Al Viro 
Signed-off-by: Linus Torvalds

Merge tag 'thermal-v6.12-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/thermal/linux into

2024-09-10T08:54:15+00:00

Merge thermal drivers changes for v6.12-rc1 from Daniel Lezcano:

"- Add power domain DT bindings for new Amlogic SoCs (Georges Stark)

 - Switch from CONFIG_PM_SLEEP guards to pm_sleep_ptr() in the ST
   driver and add a Kconfig dependency on THERMAL_OF subsystem for the
   STi driver (Raphael Gallais-Pou)

 - Simplify with dev_err_probe() the error code path in the probe
   functions for the brcmstb driver (Yan Zhen)

 - Remove trailing space after \n newline in the Renesas driver (Colin
   Ian King)

 - Add DT binding compatible string for the SA8255p with the tsens
   driver (Nikunj Kela)

 - Use the devm_clk_get_enabled() helpers to simplify the init routine
   in the sprd driver (Huan Yang)

 - Remove __maybe_unused notations for the functions by using the new
   RUNTIME_PM_OPS() and SYSTEM_SLEEP_PM_OPS() macros on the IMx and
   Qoriq drivers (Fabio Estevam)

 - Remove unused declarations in the header file as the functions were
   removed in a previous change on the ti-soc-thermal driver (Zhang
   Zekun)

 - Simplify with dev_err_probe()	the error code path in the probe
   functions for the imx_sc_thermal driver (Alexander Stein)"

* tag 'thermal-v6.12-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/thermal/linux:
  thermal/drivers/imx_sc_thermal: Use dev_err_probe
  thermal/drivers/ti-soc-thermal: Remove unused declarations
  thermal/drivers/imx: Remove __maybe_unused notations
  thermal/drivers/qoriq: Remove __maybe_unused notations
  thermal/drivers/sprd: Use devm_clk_get_enabled() helpers
  dt-bindings: thermal: tsens: document support on SA8255p
  thermal/drivers/renesas: Remove trailing space after \n newline
  thermal/drivers/brcmstb_thermal: Simplify with dev_err_probe()
  thermal/drivers/sti: Depend on THERMAL_OF subsystem
  thermal/drivers/st: Switch from CONFIG_PM_SLEEP guards to pm_sleep_ptr()
  dt-bindings: thermal: amlogic,thermal: add optional power-domains