linux-toradex.git/include/acpi, branch v7.0-rc6 Linux kernel for Apalis and Colibri modules Merge tag 'mailbox-v6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox 2026-02-14T19:13:32+00:00 Linus Torvalds torvalds@linux-foundation.org 2026-02-14T19:13:32+00:00 f0a475aedd190db95cf92914ca7760c06fbdb704 Pull mailbox updates from Jassi Brar: "Platform and core updates PCC: - Updates to transmission and interrupt handling, including dynamic txdone configuration, ->last_tx_done() wiring, and SHMEM initialization fixes. Reverted previous shared buffer patch MediaTek - Introduce mtk-vcp-mailbox driver and bindings for MT8196 VCP - Expand mtk-cmdq for MT8196 with GCE virtualization, mminfra_offset, and instruction generation data Spreadtrum (SPRD) - Add Mailbox Revision 2 support and UMS9230 bindings - Fix unhandled interrupt masking and TX done delivery flags Microchip - Add pic64gx compatibility to MPFS - Fix out-of-bounds access and smatch warnings in mchp-ipc-sbi Core & Misc Platform Updates - Prevent out-of-bounds access in fw_mbox_index_xlate() - Add bindings for Qualcomm CPUCP (Kaanapali) - Simplify mtk-cmdq and zynqmp-ipi with scoped OF child iterators - Consolidate various minor fixes, dead code removal, and typo corrections across Broadcom, NXP, Samsung, Xilinx, ARM, and core headers" * tag 'mailbox-v6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox: (34 commits) mailbox: sprd: mask interrupts that are not handled mailbox: sprd: add support for mailbox revision 2 mailbox: sprd: clear delivery flag before handling TX done dt-bindings: mailbox: sprd: add compatible for UMS9230 mailbox: bcm-ferxrm-mailbox: Use default primary handler mailbox: Remove mailbox_client.h from controller drivers mailbox: zynqmp-ipi: Simplify with scoped for each OF child loop mailbox: mtk-cmdq: Simplify with scoped for each OF child loop dt-bindings: mailbox: xlnx,zynqmp-ipi-mailbox: Document msg region requirement mailbox: Improve RISCV_SBI_MPXY_MBOX guidance mailbox: mchp-ipc-sbi: fix uninitialized symbol and other smatch warnings mailbox: arm_mhuv3: fix typo in comment mailbox: cix: fix typo in error message mailbox: imx: Skip the suspend flag for i.MX7ULP mailbox: exynos: drop unneeded runtime pointer (pclk) mailbox: pcc: Remove spurious IRQF_ONESHOT usage mailbox: mtk-cmdq: Add driver data to support for MT8196 mailbox: mtk-cmdq: Add mminfra_offset configuration for DRAM transaction mailbox: mtk-cmdq: Add GCE hardware virtualization configuration mailbox: mtk-cmdq: Add cmdq private data to cmdq_pkt for generating instruction ... 
Pull mailbox updates from Jassi Brar:
 "Platform and core updates

  PCC:
   - Updates to transmission and interrupt handling, including dynamic
     txdone configuration, ->last_tx_done() wiring, and SHMEM
     initialization fixes. Reverted previous shared buffer patch

  MediaTek
   - Introduce mtk-vcp-mailbox driver and bindings for MT8196 VCP
   - Expand mtk-cmdq for MT8196 with GCE virtualization, mminfra_offset,
     and instruction generation data

  Spreadtrum (SPRD)
   - Add Mailbox Revision 2 support and UMS9230 bindings
   - Fix unhandled interrupt masking and TX done delivery flags

  Microchip
   - Add pic64gx compatibility to MPFS
   - Fix out-of-bounds access and smatch warnings in mchp-ipc-sbi

  Core & Misc Platform Updates
   - Prevent out-of-bounds access in fw_mbox_index_xlate()
   - Add bindings for Qualcomm CPUCP (Kaanapali)
   - Simplify mtk-cmdq and zynqmp-ipi with scoped OF child iterators
   - Consolidate various minor fixes, dead code removal, and typo
     corrections across Broadcom, NXP, Samsung, Xilinx, ARM, and core
     headers"

* tag 'mailbox-v6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox: (34 commits)
  mailbox: sprd: mask interrupts that are not handled
  mailbox: sprd: add support for mailbox revision 2
  mailbox: sprd: clear delivery flag before handling TX done
  dt-bindings: mailbox: sprd: add compatible for UMS9230
  mailbox: bcm-ferxrm-mailbox: Use default primary handler
  mailbox: Remove mailbox_client.h from controller drivers
  mailbox: zynqmp-ipi: Simplify with scoped for each OF child loop
  mailbox: mtk-cmdq: Simplify with scoped for each OF child loop
  dt-bindings: mailbox: xlnx,zynqmp-ipi-mailbox: Document msg region requirement
  mailbox: Improve RISCV_SBI_MPXY_MBOX guidance
  mailbox: mchp-ipc-sbi: fix uninitialized symbol and other smatch warnings
  mailbox: arm_mhuv3: fix typo in comment
  mailbox: cix: fix typo in error message
  mailbox: imx: Skip the suspend flag for i.MX7ULP
  mailbox: exynos: drop unneeded runtime pointer (pclk)
  mailbox: pcc: Remove spurious IRQF_ONESHOT usage
  mailbox: mtk-cmdq: Add driver data to support for MT8196
  mailbox: mtk-cmdq: Add mminfra_offset configuration for DRAM transaction
  mailbox: mtk-cmdq: Add GCE hardware virtualization configuration
  mailbox: mtk-cmdq: Add cmdq private data to cmdq_pkt for generating instruction
  ...
Merge tag 'pm-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 2026-02-10T03:00:42+00:00 Linus Torvalds torvalds@linux-foundation.org 2026-02-10T03:00:42+00:00 9b1b3dcd28c271fc8c4a87e81860f3a34b6d29b7 Pull power management updates from Rafael Wysocki: "By the number of commits, cpufreq is the leading party (again) and the most visible change there is the removal of the omap-cpufreq driver that has not been used for a long time (good riddance). There are also quite a few changes in the cppc_cpufreq driver, mostly related to fixing its frequency invariance engine in the case when the CPPC registers used by it are not in PCC. In addition to that, support for AM62L3 is added to the ti-cpufreq driver and the cpufreq-dt-platdev list is updated for some platforms. The remaining cpufreq changes are assorted fixes and cleanups. Next up is cpuidle and the changes there are dominated by intel_idle driver updates, mostly related to the new command line facility allowing users to adjust the list of C-states used by the driver. There are also a few updates of cpuidle governors, including two menu governor fixes and some refinements of the teo governor, and a MAINTAINERS update adding Christian Loehle as a cpuidle reviewer. [Thanks for stepping up Christian!] The most significant update related to system suspend and hibernation is the one to stop freezing the PM runtime workqueue during system PM transitions which allows some deadlocks to be avoided. There is also a fix for possible concurrent bit field updates in the core device suspend code and a few other minor fixes. Apart from the above, several drivers are updated to discard the return value of pm_runtime_put() which is going to be converted to a void function as soon as everybody stops using its return value, PL4 support for Ice Lake is added to the Intel RAPL power capping driver, and there are assorted cleanups, documentation fixes, and some cpupower utility improvements. Specifics: - Remove the unused omap-cpufreq driver (Andreas Kemnade) - Optimize error handling code in cpufreq_boost_trigger_state() and make cpufreq_boost_trigger_state() return -EOPNOTSUPP if no policy supports boost (Lifeng Zheng) - Update cpufreq-dt-platdev list for tegra, qcom, TI (Aaron Kling, Dhruva Gole, and Konrad Dybcio) - Minor improvements to the cpufreq and cpumask rust implementation (Alexandre Courbot, Alice Ryhl, Tamir Duberstein, and Yilin Chen) - Add support for AM62L3 SoC to the ti-cpufreq driver (Dhruva Gole) - Update arch_freq_scale in the CPPC cpufreq driver's frequency invariance engine (FIE) in scheduler ticks if the related CPPC registers are not in PCC (Jie Zhan) - Assorted minor cleanups and improvements in ARM cpufreq drivers (Juan Martinez, Felix Gu, Luca Weiss, and Sergey Shtylyov) - Add generic helpers for sysfs show/store to cppc_cpufreq (Sumit Gupta) - Make the scaling_setspeed cpufreq sysfs attribute return the actual requested frequency to avoid confusion (Pengjie Zhang) - Simplify the idle CPU time granularity test in the ondemand cpufreq governor (Frederic Weisbecker) - Enable asym capacity in intel_pstate only when CPU SMT is not possible (Yaxiong Tian) - Update the description of rate_limit_us default value in cpufreq documentation (Yaxiong Tian) - Add a command line option to adjust the C-states table in the intel_idle driver, remove the 'preferred_cstates' module parameter from it, add C-states validation to it and clean it up (Artem Bityutskiy) - Make the menu cpuidle governor always check the time till the closest timer event when the scheduler tick has been stopped to prevent it from mistakenly selecting the deepest available idle state (Rafael Wysocki) - Update the teo cpuidle governor to avoid making suboptimal decisions in certain corner cases and generally improve idle state selection accuracy (Rafael Wysocki) - Remove an unlikely() annotation on the early-return condition in menu_select() that leads to branch misprediction 100% of the time on systems with only 1 idle state enabled, like ARM64 servers (Breno Leitao) - Add Christian Loehle to MAINTAINERS as a cpuidle reviewer (Christian Loehle) - Stop flagging the PM runtime workqueue as freezable to avoid system suspend and resume deadlocks in subsystems that assume asynchronous runtime PM to work during system-wide PM transitions (Rafael Wysocki) - Drop redundant NULL pointer checks before acomp_request_free() from the hibernation code handling image saving (Rafael Wysocki) - Update wakeup_sources_walk_start() to handle empty lists of wakeup sources as appropriate (Samuel Wu) - Make dev_pm_clear_wake_irq() check the power.wakeirq value under power.lock to avoid race conditions (Gui-Dong Han) - Avoid bit field races related to power.work_in_progress in the core device suspend code (Xuewen Yan) - Make several drivers discard pm_runtime_put() return value in preparation for converting that function to a void one (Rafael Wysocki) - Add PL4 support for Ice Lake to the Intel RAPL power capping driver (Daniel Tang) - Replace sprintf() with sysfs_emit() in power capping sysfs show functions (Sumeet Pawnikar) - Make dev_pm_opp_get_level() return value match the documentation after a previous update of the latter (Aleks Todorov) - Use scoped for each OF child loop in the OPP code (Krzysztof Kozlowski) - Fix a bug in an example code snippet and correct typos in the energy model management documentation (Patrick Little) - Fix miscellaneous problems in cpupower (Kaushlendra Kumar): * idle_monitor: Fix incorrect value logged after stop * Fix inverted APERF capability check * Use strcspn() to strip trailing newline * Reset errno before strtoull() * Show C0 in idle-info dump - Improve cpupower installation procedure by making the systemd step optional and allowing users to disable the installation of systemd's unit file (João Marcos Costa)" * tag 'pm-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (65 commits) PM: sleep: core: Avoid bit field races related to work_in_progress PM: sleep: wakeirq: harden dev_pm_clear_wake_irq() against races cpufreq: Documentation: Update description of rate_limit_us default value cpufreq: intel_pstate: Enable asym capacity only when CPU SMT is not possible PM: wakeup: Handle empty list in wakeup_sources_walk_start() PM: EM: Documentation: Fix bug in example code snippet Documentation: Fix typos in energy model documentation cpuidle: governors: teo: Refine intercepts-based idle state lookup cpuidle: governors: teo: Adjust the classification of wakeup events cpufreq: ondemand: Simplify idle cputime granularity test cpufreq: userspace: make scaling_setspeed return the actual requested frequency PM: hibernate: Drop NULL pointer checks before acomp_request_free() cpufreq: CPPC: Add generic helpers for sysfs show/store cpufreq: scmi: Fix device_node reference leak in scmi_cpu_domain_id() cpufreq: ti-cpufreq: add support for AM62L3 SoC cpufreq: dt-platdev: Add ti,am62l3 to blocklist cpufreq/amd-pstate: Add comment explaining nominal_perf usage for performance policy cpufreq: scmi: correct SCMI explanation cpufreq: dt-platdev: Block the driver from probing on more QC platforms rust: cpumask: rename methods of Cpumask for clarity and consistency ... 
Pull power management updates from Rafael Wysocki:
 "By the number of commits, cpufreq is the leading party (again) and the
  most visible change there is the removal of the omap-cpufreq driver
  that has not been used for a long time (good riddance). There are also
  quite a few changes in the cppc_cpufreq driver, mostly related to
  fixing its frequency invariance engine in the case when the CPPC
  registers used by it are not in PCC. In addition to that, support for
  AM62L3 is added to the ti-cpufreq driver and the cpufreq-dt-platdev
  list is updated for some platforms. The remaining cpufreq changes are
  assorted fixes and cleanups.

  Next up is cpuidle and the changes there are dominated by intel_idle
  driver updates, mostly related to the new command line facility
  allowing users to adjust the list of C-states used by the driver.
  There are also a few updates of cpuidle governors, including two menu
  governor fixes and some refinements of the teo governor, and a
  MAINTAINERS update adding Christian Loehle as a cpuidle reviewer.
  [Thanks for stepping up Christian!]

  The most significant update related to system suspend and hibernation
  is the one to stop freezing the PM runtime workqueue during system PM
  transitions which allows some deadlocks to be avoided. There is also a
  fix for possible concurrent bit field updates in the core device
  suspend code and a few other minor fixes.

  Apart from the above, several drivers are updated to discard the
  return value of pm_runtime_put() which is going to be converted to a
  void function as soon as everybody stops using its return value, PL4
  support for Ice Lake is added to the Intel RAPL power capping driver,
  and there are assorted cleanups, documentation fixes, and some
  cpupower utility improvements.

  Specifics:

   - Remove the unused omap-cpufreq driver (Andreas Kemnade)

   - Optimize error handling code in cpufreq_boost_trigger_state() and
     make cpufreq_boost_trigger_state() return -EOPNOTSUPP if no policy
     supports boost (Lifeng Zheng)

   - Update cpufreq-dt-platdev list for tegra, qcom, TI (Aaron Kling,
     Dhruva Gole, and Konrad Dybcio)

   - Minor improvements to the cpufreq and cpumask rust implementation
     (Alexandre Courbot, Alice Ryhl, Tamir Duberstein, and Yilin Chen)

   - Add support for AM62L3 SoC to the ti-cpufreq driver (Dhruva Gole)

   - Update arch_freq_scale in the CPPC cpufreq driver's frequency
     invariance engine (FIE) in scheduler ticks if the related CPPC
     registers are not in PCC (Jie Zhan)

   - Assorted minor cleanups and improvements in ARM cpufreq drivers
     (Juan Martinez, Felix Gu, Luca Weiss, and Sergey Shtylyov)

   - Add generic helpers for sysfs show/store to cppc_cpufreq (Sumit
     Gupta)

   - Make the scaling_setspeed cpufreq sysfs attribute return the actual
     requested frequency to avoid confusion (Pengjie Zhang)

   - Simplify the idle CPU time granularity test in the ondemand cpufreq
     governor (Frederic Weisbecker)

   - Enable asym capacity in intel_pstate only when CPU SMT is not
     possible (Yaxiong Tian)

   - Update the description of rate_limit_us default value in cpufreq
     documentation (Yaxiong Tian)

   - Add a command line option to adjust the C-states table in the
     intel_idle driver, remove the 'preferred_cstates' module parameter
     from it, add C-states validation to it and clean it up (Artem
     Bityutskiy)

   - Make the menu cpuidle governor always check the time till the
     closest timer event when the scheduler tick has been stopped to
     prevent it from mistakenly selecting the deepest available idle
     state (Rafael Wysocki)

   - Update the teo cpuidle governor to avoid making suboptimal
     decisions in certain corner cases and generally improve idle state
     selection accuracy (Rafael Wysocki)

   - Remove an unlikely() annotation on the early-return condition in
     menu_select() that leads to branch misprediction 100% of the time
     on systems with only 1 idle state enabled, like ARM64 servers
     (Breno Leitao)

   - Add Christian Loehle to MAINTAINERS as a cpuidle reviewer
     (Christian Loehle)

   - Stop flagging the PM runtime workqueue as freezable to avoid system
     suspend and resume deadlocks in subsystems that assume asynchronous
     runtime PM to work during system-wide PM transitions (Rafael
     Wysocki)

   - Drop redundant NULL pointer checks before acomp_request_free() from
     the hibernation code handling image saving (Rafael Wysocki)

   - Update wakeup_sources_walk_start() to handle empty lists of wakeup
     sources as appropriate (Samuel Wu)

   - Make dev_pm_clear_wake_irq() check the power.wakeirq value under
     power.lock to avoid race conditions (Gui-Dong Han)

   - Avoid bit field races related to power.work_in_progress in the core
     device suspend code (Xuewen Yan)

   - Make several drivers discard pm_runtime_put() return value in
     preparation for converting that function to a void one (Rafael
     Wysocki)

   - Add PL4 support for Ice Lake to the Intel RAPL power capping driver
     (Daniel Tang)

   - Replace sprintf() with sysfs_emit() in power capping sysfs show
     functions (Sumeet Pawnikar)

   - Make dev_pm_opp_get_level() return value match the documentation
     after a previous update of the latter (Aleks Todorov)

   - Use scoped for each OF child loop in the OPP code (Krzysztof
     Kozlowski)

   - Fix a bug in an example code snippet and correct typos in the
     energy model management documentation (Patrick Little)

   - Fix miscellaneous problems in cpupower (Kaushlendra Kumar):
      * idle_monitor: Fix incorrect value logged after stop
      * Fix inverted APERF capability check
      * Use strcspn() to strip trailing newline
      * Reset errno before strtoull()
      * Show C0 in idle-info dump

   - Improve cpupower installation procedure by making the systemd step
     optional and allowing users to disable the installation of
     systemd's unit file (João Marcos Costa)"

* tag 'pm-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (65 commits)
  PM: sleep: core: Avoid bit field races related to work_in_progress
  PM: sleep: wakeirq: harden dev_pm_clear_wake_irq() against races
  cpufreq: Documentation: Update description of rate_limit_us default value
  cpufreq: intel_pstate: Enable asym capacity only when CPU SMT is not possible
  PM: wakeup: Handle empty list in wakeup_sources_walk_start()
  PM: EM: Documentation: Fix bug in example code snippet
  Documentation: Fix typos in energy model documentation
  cpuidle: governors: teo: Refine intercepts-based idle state lookup
  cpuidle: governors: teo: Adjust the classification of wakeup events
  cpufreq: ondemand: Simplify idle cputime granularity test
  cpufreq: userspace: make scaling_setspeed return the actual requested frequency
  PM: hibernate: Drop NULL pointer checks before acomp_request_free()
  cpufreq: CPPC: Add generic helpers for sysfs show/store
  cpufreq: scmi: Fix device_node reference leak in scmi_cpu_domain_id()
  cpufreq: ti-cpufreq: add support for AM62L3 SoC
  cpufreq: dt-platdev: Add ti,am62l3 to blocklist
  cpufreq/amd-pstate: Add comment explaining nominal_perf usage for performance policy
  cpufreq: scmi: correct SCMI explanation
  cpufreq: dt-platdev: Block the driver from probing on more QC platforms
  rust: cpumask: rename methods of Cpumask for clarity and consistency
  ...
Merge branch 'acpi-apei' 2026-02-05T14:17:54+00:00 Rafael J. Wysocki rafael.j.wysocki@intel.com 2026-02-05T14:17:54+00:00 dfa5dc3ad3b15a519101f134ed76c068526004e4 Merge ACPI APEI support updates for 6.20-rc1/7.0-rc1: - Make read-only array non_mmio_desc[] static const (Colin Ian King) - Prevent the APEI GHES support code on ARM from accessing memory out of bounds or going past the ARM processor CPER record buffer (Mauro Carvalho Chehab) - Prevent cper_print_fw_err() from dumping the entire memory on systems with defective firmware (Mauro Carvalho Chehab) - Improve ghes_notify_nmi() status check to avoid unnecessary overhead in the NMI handler by carrying out all of the requisite preparations and the NMI registration time (Tony Luck) - Refactor the GHES driver by extracting common functionality into reusable helper functions to reduce code duplication and improve the ghes_notify_sea() status check in analogy with the previous ghes_notify_nmi() status check improvement (Shuai Xue) - Make ELOG and GHES log and trace consistently and support the CPER CXL protocol analogously (Fabio De Francesco) - Disable KASAN instrumentation in the APEI GHES driver when compile testing with clang < 18 (Nathan Chancellor) - Let ghes_edac be the preferred driver to load on __ZX__ and _BYO_ systems by extending the platform detection list in the APEI GHES driver (Tony W Wang-oc) * acpi-apei: ACPI: APEI: GHES: Add ghes_edac support for __ZX__ and _BYO_ systems ACPI: APEI: GHES: Disable KASAN instrumentation when compile testing with clang < 18 ACPI: extlog: Trace CPER CXL Protocol Error Section ACPI: APEI: GHES: Add helper to copy CPER CXL protocol error info to work struct ACPI: APEI: GHES: Add helper for CPER CXL protocol errors checks ACPI: extlog: Trace CPER PCI Express Error Section ACPI: extlog: Trace CPER Non-standard Section Body ACPI: APEI: GHES: Improve ghes_notify_sea() status check ACPI: APEI: GHES: Extract helper functions for error status handling ACPI: APEI: GHES: Improve ghes_notify_nmi() status check EFI/CPER: don't dump the entire memory region APEI/GHES: ensure that won't go past CPER allocated record EFI/CPER: don't go past the ARM processor CPER record buffer APEI/GHES: ARM processor Error: don't go past allocated memory ACPI: APEI: EINJ: make read-only array non_mmio_desc static const 
Merge ACPI APEI support updates for 6.20-rc1/7.0-rc1:

 - Make read-only array non_mmio_desc[] static const (Colin Ian King)

 - Prevent the APEI GHES support code on ARM from accessing memory out
   of bounds or going past the ARM processor CPER record buffer (Mauro
   Carvalho Chehab)

 - Prevent cper_print_fw_err() from dumping the entire memory on systems
   with defective firmware (Mauro Carvalho Chehab)

 - Improve ghes_notify_nmi() status check to avoid unnecessary overhead
   in the NMI handler by carrying out all of the requisite preparations
   and the NMI registration time (Tony Luck)

 - Refactor the GHES driver by extracting common functionality into
   reusable helper functions to reduce code duplication and improve
   the ghes_notify_sea() status check in analogy with the previous
   ghes_notify_nmi() status check improvement (Shuai Xue)

 - Make ELOG and GHES log and trace consistently and support the CPER
   CXL protocol analogously (Fabio De Francesco)

 - Disable KASAN instrumentation in the APEI GHES driver when compile
   testing with clang < 18 (Nathan Chancellor)

 - Let ghes_edac be the preferred driver to load on  __ZX__ and _BYO_
   systems by extending the platform detection list in the APEI GHES
   driver (Tony W Wang-oc)

* acpi-apei:
  ACPI: APEI: GHES: Add ghes_edac support for __ZX__ and _BYO_ systems
  ACPI: APEI: GHES: Disable KASAN instrumentation when compile testing with clang < 18
  ACPI: extlog: Trace CPER CXL Protocol Error Section
  ACPI: APEI: GHES: Add helper to copy CPER CXL protocol error info to work struct
  ACPI: APEI: GHES: Add helper for CPER CXL protocol errors checks
  ACPI: extlog: Trace CPER PCI Express Error Section
  ACPI: extlog: Trace CPER Non-standard Section Body
  ACPI: APEI: GHES: Improve ghes_notify_sea() status check
  ACPI: APEI: GHES: Extract helper functions for error status handling
  ACPI: APEI: GHES: Improve ghes_notify_nmi() status check
  EFI/CPER: don't dump the entire memory region
  APEI/GHES: ensure that won't go past CPER allocated record
  EFI/CPER: don't go past the ARM processor CPER record buffer
  APEI/GHES: ARM processor Error: don't go past allocated memory
  ACPI: APEI: EINJ: make read-only array non_mmio_desc static const
Merge branch 'acpi-processor' 2026-02-05T14:09:30+00:00 Rafael J. Wysocki rafael.j.wysocki@intel.com 2026-02-05T14:09:30+00:00 2b0181a52fcbeba25c6b2d701236231b19499861 Merge ACPI processor driver changes for 6.20-rc1/7.0-rc1: - Rework the ACPI idle driver initialization to register it directly from the common initialization code instead of doing that from a CPU hotplug "online" callback and clean it up (Huisong Li, Rafael Wysocki) - Fix a possible NULL pointer dereference in acpi_processor_errata_piix4() (Tuo Li) * acpi-processor: ACPI: processor: idle: Rework the handling of acpi_processor_ffh_lpi_probe() ACPI: processor: idle: Convert acpi_processor_setup_cpuidle_dev() to void ACPI: processor: idle: Convert acpi_processor_setup_cpuidle_states() to void ACPI: processor: idle: Add debug log for states with invalid entry methods ACPI: processor: Fix NULL-pointer dereference in acpi_processor_errata_piix4() ACPI: processor: Do not expose global variable acpi_idle_driver ACPI: processor: idle: Rearrange declarations in header file ACPI: processor: idle: Redefine two functions as void ACPI: processor: Update cpuidle driver check in __acpi_processor_start() ACPI: processor: Remove unused empty stubs of some functions ACPI: processor: idle: Optimize ACPI idle driver registration 
Merge ACPI processor driver changes for 6.20-rc1/7.0-rc1:

 - Rework the ACPI idle driver initialization to register it directly
   from the common initialization code instead of doing that from a
   CPU hotplug "online" callback and clean it up (Huisong Li, Rafael
   Wysocki)

 - Fix a possible NULL pointer dereference in
   acpi_processor_errata_piix4() (Tuo Li)

* acpi-processor:
  ACPI: processor: idle: Rework the handling of acpi_processor_ffh_lpi_probe()
  ACPI: processor: idle: Convert acpi_processor_setup_cpuidle_dev() to void
  ACPI: processor: idle: Convert acpi_processor_setup_cpuidle_states() to void
  ACPI: processor: idle: Add debug log for states with invalid entry methods
  ACPI: processor: Fix NULL-pointer dereference in acpi_processor_errata_piix4()
  ACPI: processor: Do not expose global variable acpi_idle_driver
  ACPI: processor: idle: Rearrange declarations in header file
  ACPI: processor: idle: Redefine two functions as void
  ACPI: processor: Update cpuidle driver check in __acpi_processor_start()
  ACPI: processor: Remove unused empty stubs of some functions
  ACPI: processor: idle: Optimize ACPI idle driver registration
Merge branch 'acpica' 2026-02-05T11:40:25+00:00 Rafael J. Wysocki rafael.j.wysocki@intel.com 2026-02-05T11:40:25+00:00 0e8ac1d3be35e51e38c263f3b46f91fb79c51e22 Merge ACPICA changes for 6.20-rc1/7.0-rc1: - Update the ACPICA code in the kernel to upstream version 20251212 which includes the following changes: * Add support for new ACPI table DTPR (Michal Camacho Romero) * Release objects with acpi_ut_delete_object_desc() (Zilin Guan) * Add UUIDs for Microsoft fan extensions and UUIDs associated with TPM 2.0 devices (Armin Wolf) * Fix NULL pointer dereference in acpi_ev_address_space_dispatch() (Alexey Simakov) * Add KEYP ACPI table definition (Dave Jiang) * Add support for the Microsoft display mux _OSI string (Armin Wolf) * Add definitions for the IOVT ACPI table (Xianglai Li) * Abort AML bytecode execution on AML_FATAL_OP (Armin Wolf) * Include all fields in subtable type1 for PPTT (Ben Horgan) * Add GICv5 MADT structures and Arm IORT IWB node definitions (Jose Marinho) * Update Parameter Block structure for RAS2 and add a new flag in Memory Affinity Structure for SRAT (Pawel Chmielewski) * Add _VDM (Voltage Domain) object (Pawel Chmielewski) * acpica: (26 commits) ACPICA: Refactor for TPR Base/Limit registers bitmasks ACPICA: Replace TPRn Base and Limit registers ACPICA: Logfile: Changes for version 20251212 ACPICA: Align comments in TPRn-related structures ACPICA: Cleanup comments and DTPR Table handle functions ACPICA: Verify DTPR and TPR Instance buffer pointers ACPICA: Fix Segmentation Fault error related to DTPR ACPICA: Create auxiliary ACPI_TPR_AUX_SR structure for iASL compiler ACPICA: ACPI 6.6: Add _VDM (Voltage Domain) object ACPICA: actbl3.h: ACPI 6.6: SRAT: New flag in Memory Affinity Structure ACPICA: actbl2.h: ACPI 6.6: RAS2: Update Parameter Block structure ACPICA: Add Arm IORT IWB node definitions ACPICA: Add GICv5 MADT structures ACPICA: Fix asltests using the Fatal() opcode ACPICA: ACPI 6.4: PPTT: include all fields in subtable type1 ACPICA: Abort AML bytecode execution when executing AML_FATAL_OP ACPICA: Define DTPR structure related info tables and data template ACPICA: Add DTPR table support for the ASL compiler ACPICA: iASL: Add definitions for the IOVT table ACPICA: Add support for the Microsoft display mux _OSI string ... 
Merge ACPICA changes for 6.20-rc1/7.0-rc1:

 - Update the ACPICA code in the kernel to upstream version 20251212
   which includes the following changes:

   * Add support for new ACPI table DTPR (Michal Camacho Romero)
   * Release objects with acpi_ut_delete_object_desc() (Zilin Guan)
   * Add UUIDs for Microsoft fan extensions and UUIDs associated with
     TPM 2.0 devices (Armin Wolf)
   * Fix NULL pointer dereference in acpi_ev_address_space_dispatch()
     (Alexey Simakov)
   * Add KEYP ACPI table definition (Dave Jiang)
   * Add support for the Microsoft display mux _OSI string (Armin Wolf)
   * Add definitions for the IOVT ACPI table (Xianglai Li)
   * Abort AML bytecode execution on AML_FATAL_OP (Armin Wolf)
   * Include all fields in subtable type1 for PPTT (Ben Horgan)
   * Add GICv5 MADT structures and Arm IORT IWB node definitions (Jose
     Marinho)
   * Update Parameter Block structure for RAS2 and add a new flag in
     Memory Affinity Structure for SRAT (Pawel Chmielewski)
   * Add _VDM (Voltage Domain) object (Pawel Chmielewski)

* acpica: (26 commits)
  ACPICA: Refactor for TPR Base/Limit registers bitmasks
  ACPICA: Replace TPRn Base and Limit registers
  ACPICA: Logfile: Changes for version 20251212
  ACPICA: Align comments in TPRn-related structures
  ACPICA: Cleanup comments and DTPR Table handle functions
  ACPICA: Verify DTPR and TPR Instance buffer pointers
  ACPICA: Fix Segmentation Fault error related to DTPR
  ACPICA: Create auxiliary ACPI_TPR_AUX_SR structure for iASL compiler
  ACPICA: ACPI 6.6: Add _VDM (Voltage Domain) object
  ACPICA: actbl3.h: ACPI 6.6: SRAT: New flag in Memory Affinity Structure
  ACPICA: actbl2.h: ACPI 6.6: RAS2: Update Parameter Block structure
  ACPICA: Add Arm IORT IWB node definitions
  ACPICA: Add GICv5 MADT structures
  ACPICA: Fix asltests using the Fatal() opcode
  ACPICA: ACPI 6.4: PPTT: include all fields in subtable type1
  ACPICA: Abort AML bytecode execution when executing AML_FATAL_OP
  ACPICA: Define DTPR structure related info tables and data template
  ACPICA: Add DTPR table support for the ASL compiler
  ACPICA: iASL: Add definitions for the IOVT table
  ACPICA: Add support for the Microsoft display mux _OSI string
  ...
ACPI: CPPC: Rename EPP constants for clarity 2026-01-27T20:21:05+00:00 Sumit Gupta sumitg@nvidia.com 2026-01-20T14:56:17+00:00 83e2908c1d425a6ef2e96457ad95b886b8ddfc48 Update EPP (Energy Performance Preference) constants for more clarity: - Add CPPC_EPP_PERFORMANCE_PREF (0x00) for performance preference. - Rename CPPC_ENERGY_PERF_MAX to CPPC_EPP_ENERGY_EFFICIENCY_PREF (0xFF) for energy efficiency. Signed-off-by: Sumit Gupta <sumitg@nvidia.com> Reviewed-by: Lifeng Zheng <zhenglifeng1@huawei.com> [ rjw: Changelog edits ] Link: https://patch.msgid.link/20260120145623.2959636-4-sumitg@nvidia.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 
Update EPP (Energy Performance Preference) constants for more clarity:

 - Add CPPC_EPP_PERFORMANCE_PREF (0x00) for performance preference.

 - Rename CPPC_ENERGY_PERF_MAX to CPPC_EPP_ENERGY_EFFICIENCY_PREF (0xFF)
   for energy efficiency.

Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
Reviewed-by: Lifeng Zheng <zhenglifeng1@huawei.com>
[ rjw: Changelog edits ]
Link: https://patch.msgid.link/20260120145623.2959636-4-sumitg@nvidia.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPI: CPPC: Clean up cppc_perf_caps and cppc_perf_ctrls structs 2026-01-27T20:21:05+00:00 Sumit Gupta sumitg@nvidia.com 2026-01-20T14:56:16+00:00 7cb6f10ce3edc9b7bb543daafd72c396a96978ee - Remove redundant energy_perf field from 'struct cppc_perf_caps' as the same is available in 'struct cppc_perf_ctrls' which is used. - Move the 'auto_sel' field from 'struct cppc_perf_caps' to 'struct cppc_perf_ctrls' as it represents a control register. Signed-off-by: Sumit Gupta <sumitg@nvidia.com> Reviewed-by: Pierre Gondois <pierre.gondois@arm.com> Reviewed-by: Lifeng Zheng <zhenglifeng1@huawei.com> Link: https://patch.msgid.link/20260120145623.2959636-3-sumitg@nvidia.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 
 - Remove redundant energy_perf field from 'struct cppc_perf_caps' as
   the same is available in 'struct cppc_perf_ctrls' which is used.

 - Move the 'auto_sel' field from 'struct cppc_perf_caps' to
   'struct cppc_perf_ctrls' as it represents a control register.

Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Lifeng Zheng <zhenglifeng1@huawei.com>
Link: https://patch.msgid.link/20260120145623.2959636-3-sumitg@nvidia.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Merge tag 'cpufreq-arm-updates-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm 2026-01-27T13:46:28+00:00 Rafael J. Wysocki rafael.j.wysocki@intel.com 2026-01-27T13:46:28+00:00 b753c3204d7b0e9bef956b64425709a9c40246fe Pull CPUFreq Arm updates for 7.0 from Viresh Kumar: "- Update cpufreq-dt-platdev list for tegra, qcom, TI (Aaron Kling, Dhruva Gole, and Konrad Dybcio). - Minor improvements to the cpufreq / cpumask rust implementation (Alexandre Courbot, Alice Ryhl, Tamir Duberstein, and Yilin Chen). - Add support for AM62L3 SoC to ti-cpufreq driver (Dhruva Gole). - Update FIE arch_freq_scale in ticks for non-PCC regs (Jie Zhan). - Other minor cleanups / improvements (Felix Gu, Juan Martinez, Luca Weiss, and Sergey Shtylyov)." * tag 'cpufreq-arm-updates-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: cpufreq: scmi: Fix device_node reference leak in scmi_cpu_domain_id() cpufreq: ti-cpufreq: add support for AM62L3 SoC cpufreq: dt-platdev: Add ti,am62l3 to blocklist cpufreq/amd-pstate: Add comment explaining nominal_perf usage for performance policy cpufreq: scmi: correct SCMI explanation cpufreq: dt-platdev: Block the driver from probing on more QC platforms rust: cpumask: rename methods of Cpumask for clarity and consistency cpufreq: CPPC: Update FIE arch_freq_scale in ticks for non-PCC regs cpufreq: CPPC: Factor out cppc_fie_kworker_init() ACPI: CPPC: Factor out and export per-cpu cppc_perf_ctrs_in_pcc_cpu() rust: cpufreq: replace `kernel::c_str!` with C-Strings cpufreq: Add Tegra186 and Tegra194 to cpufreq-dt-platdev blocklist dt-bindings: cpufreq: qcom-hw: document Milos CPUFREQ Hardware rust: cpufreq: add __rust_helper to helpers rust: cpufreq: always inline functions using build_assert with arguments 
Pull CPUFreq Arm updates for 7.0 from Viresh Kumar:

"- Update cpufreq-dt-platdev list for tegra, qcom, TI (Aaron Kling,
   Dhruva Gole, and Konrad Dybcio).

 - Minor improvements to the cpufreq / cpumask rust implementation
   (Alexandre Courbot, Alice Ryhl, Tamir Duberstein, and Yilin Chen).

 - Add support for AM62L3 SoC to ti-cpufreq driver (Dhruva Gole).

 - Update FIE arch_freq_scale in ticks for non-PCC regs (Jie Zhan).

 - Other minor cleanups / improvements (Felix Gu, Juan Martinez, Luca
   Weiss, and Sergey Shtylyov)."

* tag 'cpufreq-arm-updates-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
  cpufreq: scmi: Fix device_node reference leak in scmi_cpu_domain_id()
  cpufreq: ti-cpufreq: add support for AM62L3 SoC
  cpufreq: dt-platdev: Add ti,am62l3 to blocklist
  cpufreq/amd-pstate: Add comment explaining nominal_perf usage for performance policy
  cpufreq: scmi: correct SCMI explanation
  cpufreq: dt-platdev: Block the driver from probing on more QC platforms
  rust: cpumask: rename methods of Cpumask for clarity and consistency
  cpufreq: CPPC: Update FIE arch_freq_scale in ticks for non-PCC regs
  cpufreq: CPPC: Factor out cppc_fie_kworker_init()
  ACPI: CPPC: Factor out and export per-cpu cppc_perf_ctrs_in_pcc_cpu()
  rust: cpufreq: replace `kernel::c_str!` with C-Strings
  cpufreq: Add Tegra186 and Tegra194 to cpufreq-dt-platdev blocklist
  dt-bindings: cpufreq: qcom-hw: document Milos CPUFREQ Hardware
  rust: cpufreq: add __rust_helper to helpers
  rust: cpufreq: always inline functions using build_assert with arguments
ACPI: CPPC: Factor out and export per-cpu cppc_perf_ctrs_in_pcc_cpu() 2026-01-27T05:51:23+00:00 Jie Zhan zhanjie9@hisilicon.com 2025-12-23T07:21:17+00:00 f9cadb3d56912a70571fdd95f426b757557c465b Factor out cppc_perf_ctrs_in_pcc_cpu() for checking whether per-cpu CPC regs are defined in PCC channels, and export it out for further use. Reviewed-by: Lifeng Zheng <zhenglifeng1@huawei.com> Reviewed-by: Pierre Gondois <pierre.gondois@arm.com> Signed-off-by: Jie Zhan <zhanjie9@hisilicon.com> Acked-by: Rafael J. Wysocki (Intel) <rafael@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> 
Factor out cppc_perf_ctrs_in_pcc_cpu() for checking whether per-cpu CPC
regs are defined in PCC channels, and export it out for further use.

Reviewed-by: Lifeng Zheng <zhenglifeng1@huawei.com>
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Signed-off-by: Jie Zhan <zhanjie9@hisilicon.com>
Acked-by: Rafael J. Wysocki (Intel) <rafael@kernel.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Revert "mailbox/pcc: support mailbox management of the shared buffer" 2026-01-18T20:19:20+00:00 Sudeep Holla sudeep.holla@arm.com 2025-10-16T19:08:15+00:00 f82c3e62b6b8c31d8c56415bf38658f306fda4cb This reverts commit 5378bdf6a611a32500fccf13d14156f219bb0c85. Commit 5378bdf6a611 ("mailbox/pcc: support mailbox management of the shared buffer") attempted to introduce generic helpers for managing the PCC shared memory, but it largely duplicates functionality already provided by the mailbox core and leaves gaps: 1. TX preparation: The mailbox framework already supports this via ->tx_prepare callback for mailbox clients. The patch adds pcc_write_to_buffer() and expects clients to toggle pchan->chan.manage_writes, but no drivers set manage_writes, so pcc_write_to_buffer() has no users. 2. RX handling: Data reception is already delivered through mbox_chan_received_data() and client ->rx_callback. The patch adds an optional pchan->chan.rx_alloc, which again has no users and duplicates the existing path. 3. Completion handling: While adding last_tx_done is directionally useful, the implementation only covers Type 3/4 and fails to handle the absence of a command_complete register, so it is incomplete for other types. Given the duplication and incomplete coverage, revert this change. Any new requirements should be addressed in focused follow-ups rather than bundling multiple behavioral changes together. Fixes: 5378bdf6a611 ("mailbox/pcc: support mailbox management of the shared buffer") Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com> 
This reverts commit 5378bdf6a611a32500fccf13d14156f219bb0c85.

Commit 5378bdf6a611 ("mailbox/pcc: support mailbox management of the shared buffer")
attempted to introduce generic helpers for managing the PCC shared memory,
but it largely duplicates functionality already provided by the mailbox
core and leaves gaps:

1. TX preparation: The mailbox framework already supports this via
  ->tx_prepare callback for mailbox clients. The patch adds
  pcc_write_to_buffer() and expects clients to toggle pchan->chan.manage_writes,
  but no drivers set manage_writes, so pcc_write_to_buffer() has no users.

2. RX handling: Data reception is already delivered through
   mbox_chan_received_data() and client ->rx_callback. The patch adds an
   optional pchan->chan.rx_alloc, which again has no users and duplicates
   the existing path.

3. Completion handling: While adding last_tx_done is directionally useful,
   the implementation only covers Type 3/4 and fails to handle the absence
   of a command_complete register, so it is incomplete for other types.

Given the duplication and incomplete coverage, revert this change. Any new
requirements should be addressed in focused follow-ups rather than bundling
multiple behavioral changes together.

Fixes: 5378bdf6a611 ("mailbox/pcc: support mailbox management of the shared buffer")
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>