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159,135 commits

Author SHA1 Message Date
Linus Torvalds
4a39ac5b7d Random number generator updates for Linux 6.12-rc1.
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Merge tag 'random-6.12-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random

Pull random number generator updates from Jason Donenfeld:
 "Originally I'd planned on sending each of the vDSO getrandom()
  architecture ports to their respective arch trees. But as we started
  to work on this, we found lots of interesting issues in the shared
  code and infrastructure, the fixes for which the various archs needed
  to base their work.

  So in the end, this turned into a nice collaborative effort fixing up
  issues and porting to 5 new architectures -- arm64, powerpc64,
  powerpc32, s390x, and loongarch64 -- with everybody pitching in and
  commenting on each other's code. It was a fun development cycle.

  This contains:

   - Numerous fixups to the vDSO selftest infrastructure, getting it
     running successfully on more platforms, and fixing bugs in it.

   - Additions to the vDSO getrandom & chacha selftests. Basically every
     time manual review unearthed a bug in a revision of an arch patch,
     or an ambiguity, the tests were augmented.

     By the time the last arch was submitted for review, s390x, v1 of
     the series was essentially fine right out of the gate.

   - Fixes to the the generic C implementation of vDSO getrandom, to
     build and run successfully on all archs, decoupling it from
     assumptions we had (unintentionally) made on x86_64 that didn't
     carry through to the other architectures.

   - Port of vDSO getrandom to LoongArch64, from Xi Ruoyao and acked by
     Huacai Chen.

   - Port of vDSO getrandom to ARM64, from Adhemerval Zanella and acked
     by Will Deacon.

   - Port of vDSO getrandom to PowerPC, in both 32-bit and 64-bit
     varieties, from Christophe Leroy and acked by Michael Ellerman.

   - Port of vDSO getrandom to S390X from Heiko Carstens, the arch
     maintainer.

  While it'd be natural for there to be things to fix up over the course
  of the development cycle, these patches got a decent amount of review
  from a fairly diverse crew of folks on the mailing lists, and, for the
  most part, they've been cooking in linux-next, which has been helpful
  for ironing out build issues.

  In terms of architectures, I think that mostly takes care of the
  important 64-bit archs with hardware still being produced and running
  production loads in settings where vDSO getrandom is likely to help.

  Arguably there's still RISC-V left, and we'll see for 6.13 whether
  they find it useful and submit a port"

* tag 'random-6.12-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random: (47 commits)
  selftests: vDSO: check cpu caps before running chacha test
  s390/vdso: Wire up getrandom() vdso implementation
  s390/vdso: Move vdso symbol handling to separate header file
  s390/vdso: Allow alternatives in vdso code
  s390/module: Provide find_section() helper
  s390/facility: Let test_facility() generate static branch if possible
  s390/alternatives: Remove ALT_FACILITY_EARLY
  s390/facility: Disable compile time optimization for decompressor code
  selftests: vDSO: fix vdso_config for s390
  selftests: vDSO: fix ELF hash table entry size for s390x
  powerpc/vdso: Wire up getrandom() vDSO implementation on VDSO64
  powerpc/vdso: Wire up getrandom() vDSO implementation on VDSO32
  powerpc/vdso: Refactor CFLAGS for CVDSO build
  powerpc/vdso32: Add crtsavres
  mm: Define VM_DROPPABLE for powerpc/32
  powerpc/vdso: Fix VDSO data access when running in a non-root time namespace
  selftests: vDSO: don't include generated headers for chacha test
  arm64: vDSO: Wire up getrandom() vDSO implementation
  arm64: alternative: make alternative_has_cap_likely() VDSO compatible
  selftests: vDSO: also test counter in vdso_test_chacha
  ...
2024-09-18 15:26:31 +02:00
Linus Torvalds
9f0c253ddd Performance events changes for v6.12:
- Implement per-PMU context rescheduling to significantly improve single-PMU
    performance, and related cleanups/fixes. (by Peter Zijlstra and Namhyung Kim)
 
  - Fix ancient bug resulting in a lot of events being dropped erroneously
    at higher sampling frequencies. (by Luo Gengkun)
 
  - uprobes enhancements:
 
      - Implement RCU-protected hot path optimizations for better performance:
 
          "For baseline vs SRCU, peak througput increased from 3.7 M/s (million uprobe
           triggerings per second) up to about 8 M/s. For uretprobes it's a bit more
           modest with bump from 2.4 M/s to 5 M/s.
 
           For SRCU vs RCU Tasks Trace, peak throughput for uprobes increases further from
           8 M/s to 10.3 M/s (+28%!), and for uretprobes from 5.3 M/s to 5.8 M/s (+11%),
           as we have more work to do on uretprobes side.
 
           Even single-thread (no contention) performance is slightly better: 3.276 M/s to
           3.396 M/s (+3.5%) for uprobes, and 2.055 M/s to 2.174 M/s (+5.8%)
           for uretprobes."
 
           (by Andrii Nakryiko et al)
 
      - Document mmap_lock, don't abuse get_user_pages_remote(). (by Oleg Nesterov)
 
      - Cleanups & fixes to prepare for future work:
 
         - Remove uprobe_register_refctr()
 	- Simplify error handling for alloc_uprobe()
         - Make uprobe_register() return struct uprobe *
         - Fold __uprobe_unregister() into uprobe_unregister()
         - Shift put_uprobe() from delete_uprobe() to uprobe_unregister()
         - BPF: Fix use-after-free in bpf_uprobe_multi_link_attach()
 
           (by Oleg Nesterov)
 
  - New feature & ABI extension: allow events to use PERF_SAMPLE READ with
    inheritance, enabling sample based profiling of a group of counters over
    a hierarchy of processes or threads.  (by Ben Gainey)
 
  - Intel uncore & power events updates:
 
       - Add Arrow Lake and Lunar Lake support
       - Add PERF_EV_CAP_READ_SCOPE
       - Clean up and enhance cpumask and hotplug support
 
         (by Kan Liang)
 
       - Add LNL uncore iMC freerunning support
       - Use D0:F0 as a default device
 
         (by Zhenyu Wang)
 
  - Intel PT: fix AUX snapshot handling race. (by Adrian Hunter)
 
  - Misc fixes and cleanups. (by James Clark, Jiri Olsa, Oleg Nesterov and Peter Zijlstra)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2024-09-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf events updates from Ingo Molnar:

 - Implement per-PMU context rescheduling to significantly improve
   single-PMU performance, and related cleanups/fixes (Peter Zijlstra
   and Namhyung Kim)

 - Fix ancient bug resulting in a lot of events being dropped
   erroneously at higher sampling frequencies (Luo Gengkun)

 - uprobes enhancements:

     - Implement RCU-protected hot path optimizations for better
       performance:

         "For baseline vs SRCU, peak througput increased from 3.7 M/s
          (million uprobe triggerings per second) up to about 8 M/s. For
          uretprobes it's a bit more modest with bump from 2.4 M/s to
          5 M/s.

          For SRCU vs RCU Tasks Trace, peak throughput for uprobes
          increases further from 8 M/s to 10.3 M/s (+28%!), and for
          uretprobes from 5.3 M/s to 5.8 M/s (+11%), as we have more
          work to do on uretprobes side.

          Even single-thread (no contention) performance is slightly
          better: 3.276 M/s to 3.396 M/s (+3.5%) for uprobes, and 2.055
          M/s to 2.174 M/s (+5.8%) for uretprobes."

          (Andrii Nakryiko et al)

     - Document mmap_lock, don't abuse get_user_pages_remote() (Oleg
       Nesterov)

     - Cleanups & fixes to prepare for future work:
        - Remove uprobe_register_refctr()
	- Simplify error handling for alloc_uprobe()
        - Make uprobe_register() return struct uprobe *
        - Fold __uprobe_unregister() into uprobe_unregister()
        - Shift put_uprobe() from delete_uprobe() to uprobe_unregister()
        - BPF: Fix use-after-free in bpf_uprobe_multi_link_attach()
          (Oleg Nesterov)

 - New feature & ABI extension: allow events to use PERF_SAMPLE READ
   with inheritance, enabling sample based profiling of a group of
   counters over a hierarchy of processes or threads (Ben Gainey)

 - Intel uncore & power events updates:

      - Add Arrow Lake and Lunar Lake support
      - Add PERF_EV_CAP_READ_SCOPE
      - Clean up and enhance cpumask and hotplug support
        (Kan Liang)

      - Add LNL uncore iMC freerunning support
      - Use D0:F0 as a default device
        (Zhenyu Wang)

 - Intel PT: fix AUX snapshot handling race (Adrian Hunter)

 - Misc fixes and cleanups (James Clark, Jiri Olsa, Oleg Nesterov and
   Peter Zijlstra)

* tag 'perf-core-2024-09-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits)
  dmaengine: idxd: Clean up cpumask and hotplug for perfmon
  iommu/vt-d: Clean up cpumask and hotplug for perfmon
  perf/x86/intel/cstate: Clean up cpumask and hotplug
  perf: Add PERF_EV_CAP_READ_SCOPE
  perf: Generic hotplug support for a PMU with a scope
  uprobes: perform lockless SRCU-protected uprobes_tree lookup
  rbtree: provide rb_find_rcu() / rb_find_add_rcu()
  perf/uprobe: split uprobe_unregister()
  uprobes: travers uprobe's consumer list locklessly under SRCU protection
  uprobes: get rid of enum uprobe_filter_ctx in uprobe filter callbacks
  uprobes: protected uprobe lifetime with SRCU
  uprobes: revamp uprobe refcounting and lifetime management
  bpf: Fix use-after-free in bpf_uprobe_multi_link_attach()
  perf/core: Fix small negative period being ignored
  perf: Really fix event_function_call() locking
  perf: Optimize __pmu_ctx_sched_out()
  perf: Add context time freeze
  perf: Fix event_function_call() locking
  perf: Extract a few helpers
  perf: Optimize context reschedule for single PMU cases
  ...
2024-09-18 15:03:58 +02:00
Linus Torvalds
f4960b002c fbdev fixes and updates for 6.12-rc1:
- video: Reduce code when CONFIG_HAS_IOPORT=n
 - xenfb: Fix crash by assigning fb_info->device
 - pxafb: Fix possible use after free in pxafb_task()
 - efifb: Introduce and use new devm_register_framebuffer() function
 - mmpfb: Utilize devm_clk_get_enabled() helpers
 - various typo fixes and code cleanups
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Merge tag 'fbdev-for-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev

Pull fbdev updates from Helge Deller:
 - video: Reduce code when CONFIG_HAS_IOPORT=n
 - xenfb: Fix crash by assigning fb_info->device
 - pxafb: Fix possible use after free in pxafb_task()
 - efifb: Introduce and use new devm_register_framebuffer() function
 - mmpfb: Utilize devm_clk_get_enabled() helpers
 - various typo fixes and code cleanups

* tag 'fbdev-for-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
  fbdev: omapfb: Fix typo in comment
  fbdev: pxafb: Fix possible use after free in pxafb_task()
  fbdev: xen-fbfront: Assign fb_info->device
  fbdev: hyperv_fb: Convert comma to semicolon
  fbdev: imsttfb: convert comma to semicolon
  fbdev: pxa3xx-gcu: Convert comma to semicolon
  fbdev: efifb: Use driver-private screen_info for sysfs
  fbdev: efifb: Use devm_register_framebuffer()
  fbdev: efifb: Register sysfs groups through driver core
  fbdev: Introduce devm_register_framebuffer()
  fbdev: omapfb: Use sysfs_emit_at() to simplify code
  fbdev: omapfb: panel-sony-acx565akm: Simplify show_cabc_available_modes()
  fbdev: mmp: Use devm_clk_get_enabled() helpers
  fbdev: hpfb: Fix an error handling path in hpfb_dio_probe()
  video: Handle HAS_IOPORT dependencies
2024-09-18 12:53:22 +02:00
Linus Torvalds
eec91e22fe IOMMU Updates for Linux v6.12
Including:
 
 	- Core changes:
 	  - Allow ATS on VF when parent device is identity mapped.
 	  - Optimize unmap path on ARM io-pagetable implementation.
 	  - Use of_property_present().
 
 	- ARM-SMMU changes:
 	  - SMMUv2:
 	    - Devicetree binding updates for Qualcomm MMU-500 implementations.
 	    - Extend workarounds for broken Qualcomm hypervisor to avoid
 	      touching features that are not available (e.g. 16KiB page
 	      support, reserved context banks).
 	  - SMMUv3:
 	    - Support for NVIDIA's custom virtual command queue hardware.
 	    - Fix Stage-2 stall configuration and extend tests to cover this
 	      area.
 	    - A bunch of driver cleanups, including simplification of the
 	      master rbtree code.
 	  - Plus minor cleanups and fixes across both drivers.
 
 	- Intel VT-d changes:
 	  - Retire si_domain and convert to use static identity domain.
 	  - Batched IOTLB/dev-IOTLB invalidation.
 	  - Small code refactoring and cleanups.
 
 	- AMD-Vi changes:
 	  - Cleanup and refactoring of io-pagetable code.
 	  - Add parameter to limit the used io-pagesizes.
 	  - Other cleanups and fixes.
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Merge tag 'iommu-updates-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux

Pull iommu updates from Joerg Roedel:
 "Core changes:
   - Allow ATS on VF when parent device is identity mapped
   - Optimize unmap path on ARM io-pagetable implementation
   - Use of_property_present()

  ARM-SMMU changes:
   - SMMUv2:
       - Devicetree binding updates for Qualcomm MMU-500 implementations
       - Extend workarounds for broken Qualcomm hypervisor to avoid
         touching features that are not available (e.g. 16KiB page
         support, reserved context banks)
   - SMMUv3:
       - Support for NVIDIA's custom virtual command queue hardware
       - Fix Stage-2 stall configuration and extend tests to cover this
         area
       - A bunch of driver cleanups, including simplification of the
         master rbtree code
   - Minor cleanups and fixes across both drivers

  Intel VT-d changes:
   - Retire si_domain and convert to use static identity domain
   - Batched IOTLB/dev-IOTLB invalidation
   - Small code refactoring and cleanups

  AMD-Vi changes:
   - Cleanup and refactoring of io-pagetable code
   - Add parameter to limit the used io-pagesizes
   - Other cleanups and fixes"

* tag 'iommu-updates-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (77 commits)
  dt-bindings: arm-smmu: Add compatible for QCS8300 SoC
  iommu/amd: Test for PAGING domains before freeing a domain
  iommu/amd: Fix argument order in amd_iommu_dev_flush_pasid_all()
  iommu/amd: Add kernel parameters to limit V1 page-sizes
  iommu/arm-smmu-v3: Reorganize struct arm_smmu_ctx_desc_cfg
  iommu/arm-smmu-v3: Add types for each level of the CD table
  iommu/arm-smmu-v3: Shrink the cdtab l1_desc array
  iommu/arm-smmu-v3: Do not use devm for the cd table allocations
  iommu/arm-smmu-v3: Remove strtab_base/cfg
  iommu/arm-smmu-v3: Reorganize struct arm_smmu_strtab_cfg
  iommu/arm-smmu-v3: Add types for each level of the 2 level stream table
  iommu/arm-smmu-v3: Add arm_smmu_strtab_l1/2_idx()
  iommu/arm-smmu-qcom: apply num_context_bank fixes for SDM630 / SDM660
  iommu/arm-smmu-v3: Use the new rb tree helpers
  dt-bindings: arm-smmu: document the support on SA8255p
  iommu/tegra241-cmdqv: Do not allocate vcmdq until dma_set_mask_and_coherent
  iommu/tegra241-cmdqv: Drop static at local variable
  iommu/tegra241-cmdqv: Fix ioremap() error handling in probe()
  iommu/amd: Do not set the D bit on AMD v2 table entries
  iommu/amd: Correct the reported page sizes from the V1 table
  ...
2024-09-18 12:45:52 +02:00
Linus Torvalds
c27ea952c6 hwmon updates for v6.12
* New drivers
 
   - Driver for Sophgo SG2042 external hardware monitor
 
   - Thermal sensor driver for Surface Aggregator Module
 
 * Added support to existing drivers
 
   - oxp-sensors: Support for multiple new devices.
 
   - nct6775: Added G15CF to ASUS WMI monitoring list
 
 * Modernizations
 
   - ina2xx: Driver cleanup and update to use with_info API
 
   - lm92: Driver cleanup and update to use regmap and with_info API
 
   - lm95234: Driver cleanup and update to use regmap and with_info API
 
   - max1619: Driver cleanup and update to use regmap and with_info API
 
   - max1668: Driver cleanup and update to use regmap and with_info API
 
   - max6697: Driver cleanup and update to use regmap and with_info API
 
 * API updates
 
   - Removed unused devm_hwmon_device_unregister() API function
 
 * Other notable changes
 
   - Implement and use generic bus access delay for pmbus drivers
 
   - Use with scoped for each OF child loop in several drivers
 
   - Module unloading fixes for gsc-hwmon and ntc_thermistor drivers
 
   - Converted various drivers to use multi-byte regmap operations
 
   - adt7475: Improved devicetree based configuration
 
   - ltc2947: Move to firmware agnostic API
 
   - ltc2978: Converted devicetree description to yaml
 
   - max16065: Addressed overflows when writing limit attributes
 
 * Various other minor cleanups, fixes and improvements
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Merge tag 'hwmon-for-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "New drivers:
   - driver for Sophgo SG2042 external hardware monitor
   - thermal sensor driver for Surface Aggregator Module

  Added support to existing drivers:
   - oxp-sensors: Support for multiple new devices.
   - nct6775: Added G15CF to ASUS WMI monitoring list

  Modernizations:
   - driver cleanup and update to use with_info API: ina2xx, lm92,
     lm95234, max1619, max1668, and max6697.

  API updates:
   - removed unused devm_hwmon_device_unregister() API function

  Other notable changes
   - implement and use generic bus access delay for pmbus drivers
   - use with scoped for each OF child loop in several drivers
   - module unloading fixes for gsc-hwmon and ntc_thermistor drivers
   - converted various drivers to use multi-byte regmap operations
   - adt7475: Improved devicetree based configuration
   - ltc2947: Move to firmware agnostic API
   - ltc2978: Converted devicetree description to yaml
   - max16065: Addressed overflows when writing limit attributes

  Various other minor cleanups, fixes and improvements"

* tag 'hwmon-for-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (96 commits)
  hwmon: Remove devm_hwmon_device_unregister() API function
  hwmon: (sch5636) Print unknown ID in error string via %*pE
  hwmon: (sht21) Use %*ph to print small buffer
  hwmon: (pmbus/mpq7932) Constify struct regulator_desc
  hwmon: pmbus: pli12096bc: Add write delay
  hwmon: pmbus: zl6100: Use generic code
  hwmon: pmbus: ucd9000: Use generic code
  hwmon: pmbus: max15301: Use generic code
  hwmon: pmbus: Implement generic bus access delay
  hwmon: (ina2xx) Use shunt voltage to calculate current
  hwmon: (ina2xx) Add support for current limits
  hwmon: (ina2xx) Pass register to alert limit write functions
  hwmon: (ina2xx) Convert to use with_info hwmon API
  hwmon: (ina2xx) Move ina2xx_get_value()
  hwmon: (ina2xx) Set alert latch
  hwmon: (ina2xx) Consolidate chip initialization code
  hwmon: (ina2xx) Fix various overflow issues
  hwmon: (ina2xx) Re-initialize chip using regmap functions
  hwmon: (ina2xx) Use local regmap pointer if used more than once
  hwmon: (ina2xx) Mark regmap_config as const
  ...
2024-09-18 12:40:48 +02:00
Linus Torvalds
39b3f4e0db hardening updates for v6.12-rc1
- lib/string_choices: Add str_up_down() helper (Michal Wajdeczko)
 
 - lib/string_choices: Add str_true_false()/str_false_true() helper
   (Hongbo Li)
 
 - lib/string_choices: Introduce several opposite string choice helpers
   (Hongbo Li)
 
 - lib/string_helpers: rework overflow-dependent code (Justin Stitt)
 
 - fortify: refactor test_fortify Makefile to fix some build problems
   (Masahiro Yamada)
 
 - string: Check for "nonstring" attribute on strscpy() arguments
 
 - virt: vbox: Replace 1-element arrays with flexible arrays
 
 - media: venus: hfi_cmds: Replace 1-element arrays with flexible arrays
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Merge tag 'hardening-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull hardening updates from Kees Cook:

 - lib/string_choices:
    - Add str_up_down() helper (Michal Wajdeczko)
    - Add str_true_false()/str_false_true() helper  (Hongbo Li)
    - Introduce several opposite string choice helpers  (Hongbo Li)

 - lib/string_helpers:
    - rework overflow-dependent code (Justin Stitt)

 - fortify: refactor test_fortify Makefile to fix some build problems
   (Masahiro Yamada)

 - string: Check for "nonstring" attribute on strscpy() arguments

 - virt: vbox: Replace 1-element arrays with flexible arrays

 - media: venus: hfi_cmds: Replace 1-element arrays with flexible arrays

* tag 'hardening-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  lib/string_choices: Add some comments to make more clear for string choices helpers.
  lib/string_choices: Introduce several opposite string choice helpers
  lib/string_choices: Add str_true_false()/str_false_true() helper
  string: Check for "nonstring" attribute on strscpy() arguments
  media: venus: hfi_cmds: struct hfi_session_release_buffer_pkt: Add __counted_by annotation
  media: venus: hfi_cmds: struct hfi_session_release_buffer_pkt: Replace 1-element array with flexible array
  virt: vbox: struct vmmdev_hgcm_pagelist: Replace 1-element array with flexible array
  lib/string_helpers: rework overflow-dependent code
  coccinelle: Add rules to find str_down_up() replacements
  string_choices: Add wrapper for str_down_up()
  coccinelle: Add rules to find str_up_down() replacements
  lib/string_choices: Add str_up_down() helper
  fortify: use if_changed_dep to record header dependency in *.cmd files
  fortify: move test_fortify.sh to lib/test_fortify/
  fortify: refactor test_fortify Makefile to fix some build problems
2024-09-18 12:12:41 +02:00
Linus Torvalds
667495de21 execve updates for v6.12-rc1
- binfmt_elf: Dump smaller VMAs first in ELF cores (Brian Mak)
 
 - binfmt_elf: mseal address zero (Jeff Xu)
 
 - binfmt_elf, coredump: Log the reason of the failed core dumps
   (Roman Kisel)
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Merge tag 'execve-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull execve updates from Kees Cook:

 - binfmt_elf: Dump smaller VMAs first in ELF cores (Brian Mak)

 - binfmt_elf: mseal address zero (Jeff Xu)

 - binfmt_elf, coredump: Log the reason of the failed core dumps (Roman
   Kisel)

* tag 'execve-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  binfmt_elf: mseal address zero
  binfmt_elf: Dump smaller VMAs first in ELF cores
  binfmt_elf, coredump: Log the reason of the failed core dumps
  coredump: Standartize and fix logging
2024-09-18 11:53:31 +02:00
Linus Torvalds
7c9026b2b0 pstore updates for v6.12-rc1
- ramoops: Fix .rst typo (Steven Rostedt)
 
 - pstore: replace spinlock_t by raw_spinlock_t (Wen Yang)
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Merge tag 'pstore-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull pstore updates from Kees Cook:

 - ramoops: Fix .rst typo (Steven Rostedt)

 - pstore: replace spinlock_t by raw_spinlock_t (Wen Yang)

* tag 'pstore-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  pstore: replace spinlock_t by raw_spinlock_t
  pstore/ramoops: Fix typo as there is no "reserver"
2024-09-18 11:47:03 +02:00
Linus Torvalds
200289db26 pmdomain core:
- Add support for s2idle for CPU PM domains on PREEMPT_RT
  - Add device managed version of dev_pm_domain_attach|detach_list()
  - Improve layout of the debugfs summary table
 
 pmdomain providers:
  - amlogic: Remove obsolete vpu domain driver
  - bcm: raspberrypi: Add support for devices used as wakeup-sources
  - imx: Fixup clock handling for imx93 at driver remove
  - rockchip: Add gating support for RK3576
  - rockchip: Add support for RK3576 SoC
  - Some OF parsing simplifications
  - Some simplifications by using dev_err_probe() and guard()
 
 pmdomain consumers:
  - qcom/media/venus: Convert to the device managed APIs for PM domains
 
 cpuidle-psci:
  - Add support for s2idle/s2ram for the hierarchical topology on PREEMPT_RT
  - Some OF parsing simplifications
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Merge tag 'pmdomain-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm

Pull pmdomain updates from Ulf Hansson:
 "pmdomain core:
   - Add support for s2idle for CPU PM domains on PREEMPT_RT
   - Add device managed version of dev_pm_domain_attach|detach_list()
   - Improve layout of the debugfs summary table

  pmdomain providers:
   - amlogic: Remove obsolete vpu domain driver
   - bcm: raspberrypi: Add support for devices used as wakeup-sources
   - imx: Fixup clock handling for imx93 at driver remove
   - rockchip: Add gating support for RK3576
   - rockchip: Add support for RK3576 SoC
   - Some OF parsing simplifications
   - Some simplifications by using dev_err_probe() and guard()

  pmdomain consumers:
   - qcom/media/venus: Convert to the device managed APIs for PM domains

  cpuidle-psci:
   - Add support for s2idle/s2ram for the hierarchical topology on
     PREEMPT_RT
   - Some OF parsing simplifications"

* tag 'pmdomain-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm: (39 commits)
  pmdomain: core: Reduce debug summary table width
  pmdomain: core: Move mode_status_str()
  pmdomain: core: Fix "managed by" alignment in debug summary
  pmdomain: core: Harden inter-column space in debug summary
  pmdomain: rockchip: Add gating masks for rk3576
  pmdomain: rockchip: Add gating support
  pmdomain: rockchip: Simplify dropping OF node reference
  pmdomain: mediatek: make use of dev_err_cast_probe()
  pmdomain: imx93-pd: drop the context variable "init_off"
  pmdomain: imx93-pd: don't unprepare clocks on driver remove
  pmdomain: imx93-pd: replace dev_err() with dev_err_probe()
  pmdomain: qcom: rpmpd: Simplify locking with guard()
  pmdomain: qcom: rpmhpd: Simplify locking with guard()
  pmdomain: qcom: cpr: Simplify locking with guard()
  pmdomain: qcom: cpr: Simplify with dev_err_probe()
  pmdomain: imx: gpcv2: Simplify with scoped for each OF child loop
  pmdomain: imx: gpc: Simplify with scoped for each OF child loop
  pmdomain: rockchip: SimplUlf Hanssonify locking with guard()
  pmdomain: rockchip: Simplify with scoped for each OF child loop
  pmdomain: qcom-cpr: Use scope based of_node_put() to simplify code.
  ...
2024-09-18 10:49:45 +02:00
Linus Torvalds
9b08f8327f gpio updates for v6.12-rc1
Core GPIOLIB:
 - provide and add users for a macro allowing to iterate over accepted
   GPIO property names of consumer device nodes
 - remove legacy definitions that are no longer used
 - put legacy GPIO devres helpers together with the rest of the deprecated
   code
 - implement and use swnode_gpio_get_reference(): a wrapper simplifying
   the underlying calls to fwnode_property_get_reference_args()
 - use IS_ERR_OR_NULL() where it makes sense
 - replace of_find_property() with of_property_present()
 - simplify code with the scoped variant of OF-node children iterator
 
 Documentation:
 - update GPIO kerneldocs with Return sections
 - fix "Excess struct member description" warnings now being triggered
   with W=1
 
 New drivers:
 - add support for Analog Devices ADP5585
 
 Driver improvements:
 - add support for wake-on-GPIO to gpio-mpc8xxx
 - use GPIO_LOOKUP_IDX() in gpio-virtuser
 - use devm_clk_get_[optional_]enabled() where applicable in several
   drivers
 - replace OF-specific functions with provider-agnostic alternatives where
   possible
 - drop support for legacy platform data from gpio-ath79 and gpio-davinci
 - refactor gpio-stmpe
 - improve error reporting in gpio-pca953x
 - add support for reading the direction of pins for some models to
   gpio-vf610
 
 DT bindings:
 - convert the bindings for nxp,lpc3220 to YAML
 - add gpio-reserved-ranges to gpio-davinci
 - simplify the GPIO hog schema
 - fix a GPIO hog issue in bindings for fcs,fxl6408
 
 Other:
 - fix format specifiers in user-space tools
 - remove leftover files on make clean in tools/gpio/
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Merge tag 'gpio-updates-for-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio updates from Bartosz Golaszewski:
 "Core GPIOLIB:
   - provide and add users for a macro allowing to iterate over accepted
     GPIO property names of consumer device nodes
   - remove legacy definitions that are no longer used
   - put legacy GPIO devres helpers together with the rest of the
     deprecated code
   - implement and use swnode_gpio_get_reference(): a wrapper
     simplifying the underlying calls to
     fwnode_property_get_reference_args()
   - use IS_ERR_OR_NULL() where it makes sense
   - replace of_find_property() with of_property_present()
   - simplify code with the scoped variant of OF-node children iterator

  Documentation:
   - update GPIO kerneldocs with Return sections
   - fix "Excess struct member description" warnings now being triggered
     with W=1

  New drivers:
   - add support for Analog Devices ADP5585

  Driver improvements:
   - add support for wake-on-GPIO to gpio-mpc8xxx
   - use GPIO_LOOKUP_IDX() in gpio-virtuser
   - use devm_clk_get_[optional_]enabled() where applicable in several
     drivers
   - replace OF-specific functions with provider-agnostic alternatives
     where possible
   - drop support for legacy platform data from gpio-ath79 and
     gpio-davinci
   - refactor gpio-stmpe
   - improve error reporting in gpio-pca953x
   - add support for reading the direction of pins for some models to
     gpio-vf610

  DT bindings:
   - convert the bindings for nxp,lpc3220 to YAML
   - add gpio-reserved-ranges to gpio-davinci
   - simplify the GPIO hog schema
   - fix a GPIO hog issue in bindings for fcs,fxl6408

  Other:
   - fix format specifiers in user-space tools
   - remove leftover files on make clean in tools/gpio/"

* tag 'gpio-updates-for-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (54 commits)
  gpio: mpc8xxx: switch to using DEFINE_RUNTIME_DEV_PM_OPS()
  gpio: xilinx: Use helper function devm_clk_get_optional_enabled()
  gpio: mb86s7x: Use helper function devm_clk_get_optional_enabled()
  gpio: lpc18xx: Use helper function devm_clk_get_enabled()
  gpio: cadence: Use helper function devm_clk_get_enabled()
  gpio: sama5d2-piobu: convert comma to semicolon
  gpio: mpc8xxx: order headers alphabetically
  gpio: davinci: use devm_clk_get_enabled()
  gpio: davinci: drop platform data support
  gpio: stmpe: Sort headers
  gpio: stmpe: Make use of device properties
  gpio: stmpe: Utilise temporary variable for struct device
  gpio: stmpe: Remove unused 'dev' member of struct stmpe_gpio
  gpio: stmpe: Fix IRQ related error messages
  gpio: pch: kerneldoc fixes for excess members
  gpio: zynq: Simplify using devm_clk_get_enabled()
  gpio: mpc8xxx: Add wake on GPIO support
  gpio: syscon: fix excess struct member build warning
  gpio: stp-xway: Simplify using devm_clk_get_enabled()
  gpiolib: legacy: Consolidate devm_gpio_*() with other legacy APIs
  ...
2024-09-18 10:43:07 +02:00
Linus Torvalds
cc52dc2fe3 pwm: Changes for v6.12-rc1
This pull request contains some cleanups to the core and some mostly
 minor updates to a bunch of drivers and device tree bindings. One thing
 worth pointing out is that it contains an immutable branch containing
 support for a new mfd chip (Analog Devices ADP5585) with several sub
 drivers. So expect to get the four affected commits also from my fellow
 MFD and GPIO maintainers.
 
 Thanks go to Andrew Kreimer, Clark Wang, Conor Dooley, David Lechner,
 Dmitry Rokosov, Frank Li, Geert Uytterhoeven, George Stark, Jiapeng
 Chong, Krzysztof Kozlowski, Laurent Pinchart, Liao Chen, Liu Ying, Rob
 Herring and Wolfram Sang for code contributions and reviews and to Lee
 Jones for preparing the above mentioned immutable branch.
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Merge tag 'pwm/for-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux

Pull pwm updates from Uwe Kleine-König:
 "This contains some cleanups to the core and some mostly minor updates
  to a bunch of drivers and device tree bindings. One thing worth
  pointing out is that it contains an immutable branch containing
  support for a new mfd chip (Analog Devices ADP5585) with several sub
  drivers.

  Thanks go to Andrew Kreimer, Clark Wang, Conor Dooley, David Lechner,
  Dmitry Rokosov, Frank Li, Geert Uytterhoeven, George Stark, Jiapeng
  Chong, Krzysztof Kozlowski, Laurent Pinchart, Liao Chen, Liu Ying, Rob
  Herring and Wolfram Sang for code contributions and reviews and to Lee
  Jones for preparing the above mentioned immutable branch"

* tag 'pwm/for-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux: (21 commits)
  pwm: stm32: Fix a typo
  dt-bindings: pwm: amlogic: Add new bindings for meson A1 PWM
  dt-bindings: pwm: amlogic: Add optional power-domains
  pwm: Switch back to struct platform_driver::remove()
  dt-bindings: pwm: allwinner,sun4i-a10-pwm: add top-level constraints
  pwm: axi-pwmgen: use shared macro for version reg
  pwm: atmel-hlcdc: Drop trailing comma
  pwm: atmel-hlcdc: Enable module autoloading
  pwm: omap-dmtimer: Use of_property_read_bool()
  pwm: adp5585: Set OSC_EN bit to 1 when PWM state is enabled
  pwm: lp3943: Fix an incorrect type in lp3943_pwm_parse_dt()
  pwm: Simplify pwm_capture()
  pwm: lp3943: Use of_property_count_u32_elems() to get property length
  pwm: Don't export pwm_capture()
  pwm: Make info in traces about affected pwm more useful
  dt-bindings: pwm: renesas,tpu: Add r8a779h0 support
  dt-bindings: pwm: renesas,pwm-rcar: Add r8a779h0 support
  pwm: adp5585: Add Analog Devices ADP5585 support
  gpio: adp5585: Add Analog Devices ADP5585 support
  mfd: adp5585: Add Analog Devices ADP5585 core support
  ...
2024-09-18 10:39:35 +02:00
Linus Torvalds
7fced2a78a MMC core:
- Add documentation for the mmc-test driver
  - Register the eMMC RPMB partition with the RPMB subsystem
  - Some various cleanups
 
 MMC host:
  - dw_mmc-rockchip: Add support for the RK3576 variant
  - renesas_sdhi: Add support for the RZ/V2H(P) variant
  - sdhci_am654: Add a retry mechanism for tuning
  - sdhci-atmel: Convert DT bindings to json schema
  - sdhci-of-dwcmshc: Add eMMC HW reset support for BlueField-3 SoC
  - sdhci-of-dwcmshc: Add support for the RK3576 variant
  - sdhci-of-dwcmshc: Add support for the Sophgo SG2042 variant
  - sdhci-of-ma35d1: Add new driver for the Nuvoton MA35D1 SDHCI
 
 Misc/Tee:
  - Add Replay Protected Memory Block (RPMB) subsystem
  - Let optee probe RPMB device using RPMB subsystem
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Merge tag 'mmc-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Add documentation for the mmc-test driver
   - Register the eMMC RPMB partition with the RPMB subsystem
   - Some various cleanups

  MMC host:
   - dw_mmc-rockchip: Add support for the RK3576 variant
   - renesas_sdhi: Add support for the RZ/V2H(P) variant
   - sdhci_am654: Add a retry mechanism for tuning
   - sdhci-atmel: Convert DT bindings to json schema
   - sdhci-of-dwcmshc:
       - Add eMMC HW reset support for BlueField-3 SoC
       - Add support for the RK3576 variant
       - Add support for the Sophgo SG2042 variant
   - sdhci-of-ma35d1: Add new driver for the Nuvoton MA35D1 SDHCI

  Misc/Tee:
   - Add Replay Protected Memory Block (RPMB) subsystem
   - Let optee probe RPMB device using RPMB subsystem"

* tag 'mmc-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (41 commits)
  mmc: core: Use dev_err_probe for deferred regulators
  optee: Fix a NULL vs IS_ERR() check
  mmc: sdhci_am654: Add prints to tuning algorithm
  mmc: sdhci_am654: Add retry tuning
  dt-bindings: mmc: Add support for rk3576 eMMC
  Documentation: mmc: Add mmc-test doc
  rpmb: fix error path in rpmb_dev_register()
  optee: add RPMB dependency
  mmc: block: add RPMB dependency
  mmc: core Convert UNSTUFF_BITS macro to inline function
  dt-bindings: mmc: sdhci-atmel: Convert to json schema
  mmc: core: Convert simple_stroul to kstroul
  mmc: core: Calculate size from pointer
  mmc: cqhci: Make use of cqhci_halted() routine
  mmc: core: Replace the argument of mmc_sd_switch() with defines
  mmc: dw_mmc-rockchip: Add support for rk3576 SoCs
  mmc: dw_mmc-rockchip: Add internal phase support
  dt-bindings: mmc: Add support for rk3576 dw-mshc
  mmc: sdhci-of-dwcmshc: Add hw_reset() support for BlueField-3 SoC
  mmc: core: remove left-over data structure declarations
  ...
2024-09-18 10:36:30 +02:00
Linus Torvalds
2471d2b3b2 * MTD changes
No particularly important patchset this cycle, but we have a few usual
 improvements: like using a better/more recent helper or checking a
 return value.
 
 * Raw NAND changes
 
 The use of for_each_child_of_node_scoped() has been spread into the
 subsystem drivers. Aside from that, a couple of exit path have been
 fixed (mtk, denali), the TI GPMC bindings have been enhanced to comply
 with up-to-date partition descriptions and as always there is a load of
 small and misc fixes.
 
 * SPI-NAND changes
 
 The most impacting series this cycle is bringing support for continuous
 reads in the SPI-NAND subsystem. This is a feature already merged in the
 raw NAND subsystem which allows optimizing the internal fetch times in
 the chip while reading sequential pages within an eraseblock. For now
 only Macronix NANDs benefit from this feature. While we are talking
 about Macronix, some of their chip need an explicit action for selecting
 a different plane, and support for it has also been brought.
 
 The bitflip threshold has also been set to the same arbitrary level as
 in the raw NAND subsystem to optimize wear leveling decisions, and
 finally support for a new Winbond chip has been added.
 
 * SPI NOR changes
 
 Notable changes:
 - Add Write Protect support for N25Q064A.
 - New flash support for Zetta ZD25Q128C and Spansion S28HS256T.
 - Fix a NULL dereference in probe path for flashes without a name. The
   probe path tries to access the name without checking its existence
   first. S28HS256T is the first flash to define its entry without a
   name, uncovering this issue.
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Merge tag 'mtd/for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull MTD updates from Miquel Raynal:
 "MTD changes:

   - No particularly important patchset this cycle, but we have a few
     usual improvements: like using a better/more recent helper or
     checking a return value.

  Raw NAND changes:

   - The use of for_each_child_of_node_scoped() has been spread into the
     subsystem drivers

   - a couple of exit path have been fixed (mtk, denali)

   - TI GPMC bindings have been enhanced to comply with up-to-date
     partition descriptions

   - a load of small and misc fixes

  SPI-NAND changes:

   - The most impacting series this cycle is bringing support for
     continuous reads in the SPI-NAND subsystem.

     This is a feature already merged in the raw NAND subsystem which
     allows optimizing the internal fetch times in the chip while
     reading sequential pages within an eraseblock.

     For now only Macronix NANDs benefit from this feature. While we are
     talking about Macronix, some of their chip need an explicit action
     for selecting a different plane, and support for it has also been
     brought.

   - The bitflip threshold has also been set to the same arbitrary level
     as in the raw NAND subsystem to optimize wear leveling decisions

   - Add upport for a new Winbond chip

  SPI NOR changes:

   - Add Write Protect support for N25Q064A.

   - New flash support for Zetta ZD25Q128C and Spansion S28HS256T.

   - Fix a NULL dereference in probe path for flashes without a name.

     The probe path tries to access the name without checking its
     existence first. S28HS256T is the first flash to define its entry
     without a name, uncovering this issue"

* tag 'mtd/for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (41 commits)
  mtd: spi-nor: fix flash probing
  mtd: spi-nor: spansion: Add support for S28HS256T
  mtd: spi-nor: winbond: add Zetta ZD25Q128C support
  mtd: spi-nor: micron-st: Add n25q064a WP support
  mtd: spi-nor: sst: Factor out common write operation to `sst_nor_write_data()`
  mtd: spinand: macronix: Flag parts needing explicit plane select
  mtd: spinand: Add support for setting plane select bits
  dt-bindings: mtd: ti, gpmc-nand: support partitions node
  mtd: rawnand: mtk: Fix init error path
  mtd: powernv: Add check devm_kasprintf() returned value
  mtd: rawnand: mtk: Factorize out the logic cleaning mtk chips
  mtd: rawnand: atmel: Add message on DMA usage
  mtd: rawnand: meson: Fix typo in function name
  mtd: spi-nand: macronix: Continuous read support
  mtd: spi-nand: macronix: Add a possible bitflip status flag
  mtd: spi-nand: macronix: Extract the bitflip retrieval logic
  mtd: spi-nand: macronix: Fix helper name
  mtd: spi-nand: Expose spinand_write_reg_op()
  mtd: spi-nand: Add continuous read support
  mtd: spi-nand: Isolate the MTD read logic in a helper
  ...
2024-09-18 10:30:40 +02:00
Linus Torvalds
288cb34ead power supply and reset changes for the 6.12 series
* power-supply core
    - introduce power_supply_show_enum_with_available() helper
    - change usb_types from an array into a bitmask
    - fix early usage of power_supply_property_is_writeable() resulting
      in sysfs files not being writable
    - fix missing temp1_max_alarm attribute in power-supply's hwmon devices
  * drivers
    - max1720x: expose nvmem device
    - brcmstb: cleanup driver to use latest APIs
    - max77693: expose input and charging current limit
    - max17042_battery: fix state of charge reading for devices without
      current sensing
    - axp20x_battery: add AXP717 support
    - axp20x_battery: fix min/max voltage properties
    - axp20x_usb_power: add AXP717 support
    - axp20x_usb_power: add DT based input current limit
  * Documentation updates
  * misc. minor cleanups and fixes
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Merge tag 'for-v6.12' 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 power_supply_show_enum_with_available() helper
   - change usb_types from an array into a bitmask
   - fix early usage of power_supply_property_is_writeable() resulting
     in sysfs files not being writable
   - fix missing temp1_max_alarm attribute in power-supply's hwmon
     devices

  Drivers:
   - max1720x: expose nvmem device
   - brcmstb: cleanup driver to use latest APIs
   - max77693: expose input and charging current limit
   - max17042_battery: fix state of charge reading for devices without
     current sensing
   - axp20x_battery: add AXP717 support
   - axp20x_battery: fix min/max voltage properties
   - axp20x_usb_power: add AXP717 support
   - axp20x_usb_power: add DT based input current limit

  Documentation updates

  Misc minor cleanups and fixes"

* tag 'for-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (38 commits)
  power: supply: hwmon: Fix missing temp1_max_alarm attribute
  power: supply: Drop use_cnt check from power_supply_property_is_writeable()
  power: supply: ab8500: Constify struct kobj_type
  power: supply: max1720x: fix a double free on error in probe()
  power: supply: axp20x_battery: add support for AXP717
  power: supply: axp20x_usb_power: Add support for AXP717
  dt-bindings: power: supply: axp20x: Add AXP717 compatible
  dt-bindings: power: supply: axp20x: Add AXP717 compatible
  power: supply: axp20x_usb_power: Fix spelling mistake "reqested" -> "requested"
  power: supply: Change usb_types from an array into a bitmask
  power: supply: sysfs: Move power_supply_show_enum_with_available() up
  power: supply: sysfs: Add power_supply_show_enum_with_available() helper
  power: supply: rt9467-charger: Remove "usb_type" property write support
  power: supply: ucs1002: Adjust ucs1002_set_usb_type() to accept string values
  power: supply: "usb_type" property may be written to
  power: supply: max1720x: add read support for nvmem
  mfd: axp20x: Add ADC, BAT, and USB cells for AXP717
  power: supply: core: constify psy_tzd_ops
  power: reset: brcmstb: Do not go into infinite loop if reset fails
  power: reset: brcmstb: Use devm_register_sys_off_handler()
  ...
2024-09-18 10:24:22 +02:00
Linus Torvalds
bdf56c7580 slab updates for 6.12
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Merge tag 'slab-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab

Pull slab updates from Vlastimil Babka:
 "This time it's mostly refactoring and improving APIs for slab users in
  the kernel, along with some debugging improvements.

   - kmem_cache_create() refactoring (Christian Brauner)

     Over the years have been growing new parameters to
     kmem_cache_create() where most of them are needed only for a small
     number of caches - most recently the rcu_freeptr_offset parameter.

     To avoid adding new parameters to kmem_cache_create() and adjusting
     all its callers, or creating new wrappers such as
     kmem_cache_create_rcu(), we can now pass extra parameters using the
     new struct kmem_cache_args. Not explicitly initialized fields
     default to values interpreted as unused.

     kmem_cache_create() is for now a wrapper that works both with the
     new form: kmem_cache_create(name, object_size, args, flags) and the
     legacy form: kmem_cache_create(name, object_size, align, flags,
     ctor)

   - kmem_cache_destroy() waits for kfree_rcu()'s in flight (Vlastimil
     Babka, Uladislau Rezki)

     Since SLOB removal, kfree() is allowed for freeing objects
     allocated by kmem_cache_create(). By extension kfree_rcu() as
     allowed as well, which can allow converting simple call_rcu()
     callbacks that only do kmem_cache_free(), as there was never a
     kmem_cache_free_rcu() variant. However, for caches that can be
     destroyed e.g. on module removal, the cache owners knew to issue
     rcu_barrier() first to wait for the pending call_rcu()'s, and this
     is not sufficient for pending kfree_rcu()'s due to its internal
     batching optimizations. Ulad has provided a new
     kvfree_rcu_barrier() and to make the usage less error-prone,
     kmem_cache_destroy() calls it. Additionally, destroying
     SLAB_TYPESAFE_BY_RCU caches now again issues rcu_barrier()
     synchronously instead of using an async work, because the past
     motivation for async work no longer applies. Users of custom
     call_rcu() callbacks should however keep calling rcu_barrier()
     before cache destruction.

   - Debugging use-after-free in SLAB_TYPESAFE_BY_RCU caches (Jann Horn)

     Currently, KASAN cannot catch UAFs in such caches as it is legal to
     access them within a grace period, and we only track the grace
     period when trying to free the underlying slab page. The new
     CONFIG_SLUB_RCU_DEBUG option changes the freeing of individual
     object to be RCU-delayed, after which KASAN can poison them.

   - Delayed memcg charging (Shakeel Butt)

     In some cases, the memcg is uknown at allocation time, such as
     receiving network packets in softirq context. With
     kmem_cache_charge() these may be now charged later when the user
     and its memcg is known.

   - Misc fixes and improvements (Pedro Falcato, Axel Rasmussen,
     Christoph Lameter, Yan Zhen, Peng Fan, Xavier)"

* tag 'slab-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab: (34 commits)
  mm, slab: restore kerneldoc for kmem_cache_create()
  io_uring: port to struct kmem_cache_args
  slab: make __kmem_cache_create() static inline
  slab: make kmem_cache_create_usercopy() static inline
  slab: remove kmem_cache_create_rcu()
  file: port to struct kmem_cache_args
  slab: create kmem_cache_create() compatibility layer
  slab: port KMEM_CACHE_USERCOPY() to struct kmem_cache_args
  slab: port KMEM_CACHE() to struct kmem_cache_args
  slab: remove rcu_freeptr_offset from struct kmem_cache
  slab: pass struct kmem_cache_args to do_kmem_cache_create()
  slab: pull kmem_cache_open() into do_kmem_cache_create()
  slab: pass struct kmem_cache_args to create_cache()
  slab: port kmem_cache_create_usercopy() to struct kmem_cache_args
  slab: port kmem_cache_create_rcu() to struct kmem_cache_args
  slab: port kmem_cache_create() to struct kmem_cache_args
  slab: add struct kmem_cache_args
  slab: s/__kmem_cache_create/do_kmem_cache_create/g
  memcg: add charging of already allocated slab objects
  mm/slab: Optimize the code logic in find_mergeable()
  ...
2024-09-18 08:53:53 +02:00
Linus Torvalds
067610ebaa RCU pull request for v6.12
This pull request contains the following branches:
 
 context_tracking.15.08.24a: Rename context tracking state related
         symbols and remove references to "dynticks" in various context
         tracking state variables and related helpers; force
         context_tracking_enabled_this_cpu() to be inlined to avoid
         leaving a noinstr section.
 
 csd.lock.15.08.24a: Enhance CSD-lock diagnostic reports; add an API
         to provide an indication of ongoing CSD-lock stall.
 
 nocb.09.09.24a: Update and simplify RCU nocb code to handle
         (de-)offloading of callbacks only for offline CPUs; fix RT
         throttling hrtimer being armed from offline CPU.
 
 rcutorture.14.08.24a: Remove redundant rcu_torture_ops get_gp_completed
         fields; add SRCU ->same_gp_state and ->get_comp_state
         functions; add generic test for NUM_ACTIVE_*RCU_POLL* for
         testing RCU and SRCU polled grace periods; add CFcommon.arch
         for arch-specific Kconfig options; print number of update types
         in rcu_torture_write_types();
         add rcutree.nohz_full_patience_delay testing to the TREE07
         scenario; add a stall_cpu_repeat module parameter to test
         repeated CPU stalls; add argument to limit number of CPUs a
         guest OS can use in torture.sh;
 
 rcustall.09.09.24a: Abbreviate RCU CPU stall warnings during CSD-lock
         stalls; Allow dump_cpu_task() to be called without disabling
         preemption; defer printing stall-warning backtrace when holding
         rcu_node lock.
 
 srcu.12.08.24a: Make SRCU gp seq wrap-around faster; add KCSAN checks
         for concurrent updates to ->srcu_n_exp_nodelay and
         ->reschedule_count which are used in heuristics governing
         auto-expediting of normal SRCU grace periods and
         grace-period-state-machine delays; mark idle SRCU-barrier
         callbacks to help identify stuck SRCU-barrier callback.
 
 rcu.tasks.14.08.24a: Remove RCU Tasks Rude asynchronous APIs as they
         are no longer used; stop testing RCU Tasks Rude asynchronous
         APIs; fix access to non-existent percpu regions; check
         processor-ID assumptions during chosen CPU calculation for
         callback enqueuing; update description of rtp->tasks_gp_seq
         grace-period sequence number; add rcu_barrier_cb_is_done()
         to identify whether a given rcu_barrier callback is stuck;
         mark idle Tasks-RCU-barrier callbacks; add
         *torture_stats_print() functions to print detailed
         diagnostics for Tasks-RCU variants; capture start time of
         rcu_barrier_tasks*() operation to help distinguish a hung
         barrier operation from a long series of barrier operations.
 
 rcu_scaling_tests.15.08.24a:
         refscale: Add a TINY scenario to support tests of Tiny RCU
         and Tiny SRCU; Optimize process_durations() operation;
 
         rcuscale: Dump stacks of stalled rcu_scale_writer() instances;
         dump grace-period statistics when rcu_scale_writer() stalls;
         mark idle RCU-barrier callbacks to identify stuck RCU-barrier
         callbacks; print detailed grace-period and barrier diagnostics
         on rcu_scale_writer() hangs for Tasks-RCU variants; warn if
         async module parameter is specified for RCU implementations
         that do not have async primitives such as RCU Tasks Rude;
         make all writer tasks report upon hang; tolerate repeated
         GFP_KERNEL failure in rcu_scale_writer(); use special allocator
         for rcu_scale_writer(); NULL out top-level pointers to heap
         memory to avoid double-free bugs on modprobe failures; maintain
         per-task instead of per-CPU callbacks count to avoid any issues
         with migration of either tasks or callbacks; constify struct
         ref_scale_ops.
 
 fixes.12.08.24a: Use system_unbound_wq for kfree_rcu work to avoid
         disturbing isolated CPUs.
 
 misc.11.08.24a: Warn on unexpected rcu_state.srs_done_tail state;
         Better define "atomic" for list_replace_rcu() and
         hlist_replace_rcu() routines; annotate struct
         kvfree_rcu_bulk_data with __counted_by().
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Merge tag 'rcu.release.v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux

Pull RCU updates from Neeraj Upadhyay:
 "Context tracking:
   - rename context tracking state related symbols and remove references
     to "dynticks" in various context tracking state variables and
     related helpers
   - force context_tracking_enabled_this_cpu() to be inlined to avoid
     leaving a noinstr section

  CSD lock:
   - enhance CSD-lock diagnostic reports
   - add an API to provide an indication of ongoing CSD-lock stall

  nocb:
   - update and simplify RCU nocb code to handle (de-)offloading of
     callbacks only for offline CPUs
   - fix RT throttling hrtimer being armed from offline CPU

  rcutorture:
   - remove redundant rcu_torture_ops get_gp_completed fields
   - add SRCU ->same_gp_state and ->get_comp_state functions
   - add generic test for NUM_ACTIVE_*RCU_POLL* for testing RCU and SRCU
     polled grace periods
   - add CFcommon.arch for arch-specific Kconfig options
   - print number of update types in rcu_torture_write_types()
   - add rcutree.nohz_full_patience_delay testing to the TREE07 scenario
   - add a stall_cpu_repeat module parameter to test repeated CPU stalls
   - add argument to limit number of CPUs a guest OS can use in
     torture.sh

  rcustall:
   - abbreviate RCU CPU stall warnings during CSD-lock stalls
   - Allow dump_cpu_task() to be called without disabling preemption
   - defer printing stall-warning backtrace when holding rcu_node lock

  srcu:
   - make SRCU gp seq wrap-around faster
   - add KCSAN checks for concurrent updates to ->srcu_n_exp_nodelay and
     ->reschedule_count which are used in heuristics governing
     auto-expediting of normal SRCU grace periods and
     grace-period-state-machine delays
   - mark idle SRCU-barrier callbacks to help identify stuck
     SRCU-barrier callback

  rcu tasks:
   - remove RCU Tasks Rude asynchronous APIs as they are no longer used
   - stop testing RCU Tasks Rude asynchronous APIs
   - fix access to non-existent percpu regions
   - check processor-ID assumptions during chosen CPU calculation for
     callback enqueuing
   - update description of rtp->tasks_gp_seq grace-period sequence
     number
   - add rcu_barrier_cb_is_done() to identify whether a given
     rcu_barrier callback is stuck
   - mark idle Tasks-RCU-barrier callbacks
   - add *torture_stats_print() functions to print detailed diagnostics
     for Tasks-RCU variants
   - capture start time of rcu_barrier_tasks*() operation to help
     distinguish a hung barrier operation from a long series of barrier
     operations

  refscale:
   - add a TINY scenario to support tests of Tiny RCU and Tiny
     SRCU
   - optimize process_durations() operation

  rcuscale:
   - dump stacks of stalled rcu_scale_writer() instances and
     grace-period statistics when rcu_scale_writer() stalls
   - mark idle RCU-barrier callbacks to identify stuck RCU-barrier
     callbacks
   - print detailed grace-period and barrier diagnostics on
     rcu_scale_writer() hangs for Tasks-RCU variants
   - warn if async module parameter is specified for RCU implementations
     that do not have async primitives such as RCU Tasks Rude
   - make all writer tasks report upon hang
   - tolerate repeated GFP_KERNEL failure in rcu_scale_writer()
   - use special allocator for rcu_scale_writer()
   - NULL out top-level pointers to heap memory to avoid double-free
     bugs on modprobe failures
   - maintain per-task instead of per-CPU callbacks count to avoid any
     issues with migration of either tasks or callbacks
   - constify struct ref_scale_ops

  Fixes:
   - use system_unbound_wq for kfree_rcu work to avoid disturbing
     isolated CPUs

  Misc:
   - warn on unexpected rcu_state.srs_done_tail state
   - better define "atomic" for list_replace_rcu() and
     hlist_replace_rcu() routines
   - annotate struct kvfree_rcu_bulk_data with __counted_by()"

* tag 'rcu.release.v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (90 commits)
  rcu: Defer printing stall-warning backtrace when holding rcu_node lock
  rcu/nocb: Remove superfluous memory barrier after bypass enqueue
  rcu/nocb: Conditionally wake up rcuo if not already waiting on GP
  rcu/nocb: Fix RT throttling hrtimer armed from offline CPU
  rcu/nocb: Simplify (de-)offloading state machine
  context_tracking: Tag context_tracking_enabled_this_cpu() __always_inline
  context_tracking, rcu: Rename rcu_dyntick trace event into rcu_watching
  rcu: Update stray documentation references to rcu_dynticks_eqs_{enter, exit}()
  rcu: Rename rcu_momentary_dyntick_idle() into rcu_momentary_eqs()
  rcu: Rename rcu_implicit_dynticks_qs() into rcu_watching_snap_recheck()
  rcu: Rename dyntick_save_progress_counter() into rcu_watching_snap_save()
  rcu: Rename struct rcu_data .exp_dynticks_snap into .exp_watching_snap
  rcu: Rename struct rcu_data .dynticks_snap into .watching_snap
  rcu: Rename rcu_dynticks_zero_in_eqs() into rcu_watching_zero_in_eqs()
  rcu: Rename rcu_dynticks_in_eqs_since() into rcu_watching_snap_stopped_since()
  rcu: Rename rcu_dynticks_in_eqs() into rcu_watching_snap_in_eqs()
  rcu: Rename rcu_dynticks_eqs_online() into rcu_watching_online()
  context_tracking, rcu: Rename rcu_dynticks_curr_cpu_in_eqs() into rcu_is_watching_curr_cpu()
  context_tracking, rcu: Rename rcu_dynticks_task*() into rcu_task*()
  refscale: Constify struct ref_scale_ops
  ...
2024-09-18 07:52:24 +02:00
Linus Torvalds
85a77db95a workqueue: Changes for v6.12
Nothing major:
 
 - workqueue.panic_on_stall boot param added.
 
 - alloc_workqueue_lockdep_map() added (used by DRM).
 
 - Other cleanusp and doc updates.
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Merge tag 'wq-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

Pull workqueue updates from Tejun Heo:
 "Nothing major:

   - workqueue.panic_on_stall boot param added

   - alloc_workqueue_lockdep_map() added (used by DRM)

   - Other cleanusp and doc updates"

* tag 'wq-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  kernel/workqueue.c: fix DEFINE_PER_CPU_SHARED_ALIGNED expansion
  workqueue: Fix another htmldocs build warning
  workqueue: fix null-ptr-deref on __alloc_workqueue() error
  workqueue: Don't call va_start / va_end twice
  workqueue: Fix htmldocs build warning
  workqueue: Add interface for user-defined workqueue lockdep map
  workqueue: Change workqueue lockdep map to pointer
  workqueue: Split alloc_workqueue into internal function and lockdep init
  Documentation: kernel-parameters: add workqueue.panic_on_stall
  workqueue: add cmdline parameter workqueue.panic_on_stall
2024-09-18 06:59:44 +02:00
Linus Torvalds
78567e2bc7 cgroup: Changes for v6.12
- cpuset isolation improvements.
 
 - cpuset cgroup1 support is split into its own file behind the new config
   option CONFIG_CPUSET_V1. This makes it the second controller which makes
   cgroup1 support optional after memcg.
 
 - Handling of unavailable v1 controller handling improved during cgroup1
   mount operations.
 
 - union_find applied to cpuset. It makes code simpler and more efficient.
 
 - Reduce spurious events in pids.events.
 
 - Cleanups and other misc changes.
 
 - Contains a merge of cgroup/for-6.11-fixes to receive cpuset fixes that
   further changes build upon.
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Merge tag 'cgroup-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

Pull cgroup updates from Tejun Heo:

 - cpuset isolation improvements

 - cpuset cgroup1 support is split into its own file behind the new
   config option CONFIG_CPUSET_V1. This makes it the second controller
   which makes cgroup1 support optional after memcg

 - Handling of unavailable v1 controller handling improved during
   cgroup1 mount operations

 - union_find applied to cpuset. It makes code simpler and more
   efficient

 - Reduce spurious events in pids.events

 - Cleanups and other misc changes

 - Contains a merge of cgroup/for-6.11-fixes to receive cpuset fixes
   that further changes build upon

* tag 'cgroup-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (34 commits)
  cgroup: Do not report unavailable v1 controllers in /proc/cgroups
  cgroup: Disallow mounting v1 hierarchies without controller implementation
  cgroup/cpuset: Expose cpuset filesystem with cpuset v1 only
  cgroup/cpuset: Move cpu.h include to cpuset-internal.h
  cgroup/cpuset: add sefltest for cpuset v1
  cgroup/cpuset: guard cpuset-v1 code under CONFIG_CPUSETS_V1
  cgroup/cpuset: rename functions shared between v1 and v2
  cgroup/cpuset: move v1 interfaces to cpuset-v1.c
  cgroup/cpuset: move validate_change_legacy to cpuset-v1.c
  cgroup/cpuset: move legacy hotplug update to cpuset-v1.c
  cgroup/cpuset: add callback_lock helper
  cgroup/cpuset: move memory_spread to cpuset-v1.c
  cgroup/cpuset: move relax_domain_level to cpuset-v1.c
  cgroup/cpuset: move memory_pressure to cpuset-v1.c
  cgroup/cpuset: move common code to cpuset-internal.h
  cgroup/cpuset: introduce cpuset-v1.c
  selftest/cgroup: Make test_cpuset_prs.sh deal with pre-isolated CPUs
  cgroup/cpuset: Account for boot time isolated CPUs
  cgroup/cpuset: remove use_parent_ecpus of cpuset
  cgroup/cpuset: remove fetch_xcpus
  ...
2024-09-18 06:39:03 +02:00
Linus Torvalds
2f27fce671 sound updates for 6.12-rc1
A fairly big update at this time, both in core and driver sides.
 
 The core received rewrites in PCM buffer allocation handling and
 locking optimizations, PCM rate updates followed by lots of cleanups.
 
 In ASoC side, the legacy Intel drivers have been deprecated by AVS
 drivers which leaded to the significant amount of code reduction.
 SoundWire driver updates and other cleanups contributed more code
 reduction, too.
 
 USB-audio driver received a large cleanup of its big quirk table, and
 the old snd_print*() API usages in many legacy drivers are replaced
 with the standard print API.
 
 Here are some highlights:
 
 Core:
 - More optimized locking in ALSA control code
 - Rewrites of memalloc helpers for better DMA API usage
 - Drop of obsoleted vmalloc PCM buffer helper API
 - Continued MIDI2 UMP updates
 - Support of a new user-space driven timer instance
 - Update for more PCM support rates and cleanups
 - Xrun counter report in the proc files
 
 ASoC:
 - Continued simplification and cleanup works for ASoC
 - Extensive cleanups and refactoring of the Soundwire drivers
 - Removal of Intel machine support obsoleted by the AVS driver
 - Lots of DT schema conversions
 - Machine support for many AMD and Intel x86 platforms
 - Support for AMD ACP 7.1, Mediatek MT6367 and MT8365, Realtek RTL1320
   SoundWire and rev C, and Texas Instruments TAS2563
 
 USB-audio:
 - Add support of multiple control interfaces
 - A large rewrite of quirk table with macros
 - Support for RME Digiface USB
 
 HD-audio:
 - Cleanup of quirk code for Samsung Galaxy laptops
 - Clean up of detection of Cirrus codecs
 - C-Media CM9825 HD-audio codec support
 
 Others:
 - Rewrites to standard print API in a lot of legacy drivers
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Merge tag 'sound-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "A fairly big update at this time, both in core and driver sides.

  The core received rewrites in PCM buffer allocation handling and
  locking optimizations, PCM rate updates followed by lots of cleanups.

  In ASoC side, the legacy Intel drivers have been deprecated by AVS
  drivers which leaded to the significant amount of code reduction.
  SoundWire driver updates and other cleanups contributed more code
  reduction, too.

  USB-audio driver received a large cleanup of its big quirk table, and
  the old snd_print*() API usages in many legacy drivers are replaced
  with the standard print API.

  Here are some highlights:

  Core:
   - More optimized locking in ALSA control code
   - Rewrites of memalloc helpers for better DMA API usage
   - Drop of obsoleted vmalloc PCM buffer helper API
   - Continued MIDI2 UMP updates
   - Support of a new user-space driven timer instance
   - Update for more PCM support rates and cleanups
   - Xrun counter report in the proc files

  ASoC:
   - Continued simplification and cleanup works for ASoC
   - Extensive cleanups and refactoring of the Soundwire drivers
   - Removal of Intel machine support obsoleted by the AVS driver
   - Lots of DT schema conversions
   - Machine support for many AMD and Intel x86 platforms
   - Support for AMD ACP 7.1, Mediatek MT6367 and MT8365, Realtek
     RTL1320 SoundWire and rev C, and Texas Instruments TAS2563

  USB-audio:
   - Add support of multiple control interfaces
   - A large rewrite of quirk table with macros
   - Support for RME Digiface USB

  HD-audio:
   - Cleanup of quirk code for Samsung Galaxy laptops
   - Clean up of detection of Cirrus codecs
   - C-Media CM9825 HD-audio codec support

  Others:
   - Rewrites to standard print API in a lot of legacy drivers"

* tag 'sound-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (410 commits)
  ASoC: topology: Fix redundant logical jump
  ASoC: tas2781: Add Calibration Kcontrols for Chromebook
  ASoC: amd: acp: refactor SoundWire machine driver code
  ASoC: sdw_utils/intel: move soundwire endpoint parsing helper functions
  ASoC: sdw_util/intel: move soundwire endpoint and dai link structures
  ASoC: intel: sof_sdw: rename soundwire parsing helper functions
  ASoC: intel: sof_sdw: rename soundwire endpoint and dailink structures
  ASoC: atmel: mchp-pdmc: Retain Non-Runtime Controls
  ALSA: hda/realtek: Add support for Galaxy Book2 Pro (NP950XEE)
  ASoC: mediatek: mt7986-afe-pcm: Remove redundant error message
  ALSA: memalloc: Use proper DMA mapping API for x86 S/G buffer allocations
  ALSA: memalloc: Use proper DMA mapping API for x86 WC buffer allocations
  ALSA: usb-audio: Add logitech Audio profile quirk
  ASoc: mediatek: mt8365: Remove unneeded assignment
  ASoC: Intel: ARL: Add entry for HDMI-In capture support to non-I2S codec boards.
  ASoC: Intel: sof_rt5682: Add HDMI-In capture with rt5682 support for ARL.
  ASoC: SOF: Intel: hda: remove common_hdmi_codec_drv
  ASoC: Intel: sof_pcm512x: do not check common_hdmi_codec_drv
  ASoC: Intel: ehl_rt5660: do not check common_hdmi_codec_drv
  ASoC: Intel: skl_hda_dsp_generic: use common module for DAI links
  ...
2024-09-17 17:03:43 +02:00
Linus Torvalds
194fcd20eb linux_kselftest-kunit-6.12-rc1
This kunit update for Linux 6.12-rc1 consists of:
 
 -- a new int_pow test suite
 -- documentation update to clarify filename best practices
 -- kernel-doc fix for EXPORT_SYMBOL_IF_KUNIT
 -- change to build compile_commands.json automatically instead
    of requiring a manual build.
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Merge tag 'linux_kselftest-kunit-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kunit updates from Shuah Khan:

 - a new int_pow test suite

 - documentation update to clarify filename best practices

 - kernel-doc fix for EXPORT_SYMBOL_IF_KUNIT

 - change to build compile_commands.json automatically instead of
   requiring a manual build

* tag 'linux_kselftest-kunit-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  lib/math: Add int_pow test suite
  kunit: tool: Build compile_commands.json
  kunit: Fix kernel-doc for EXPORT_SYMBOL_IF_KUNIT
  Documentation: KUnit: Update filename best practices
2024-09-17 16:52:24 +02:00
Linus Torvalds
fc1dc0d507 Updates for x86 timers:
- Use the topology information of number of packages for making the
     decision about TSC trust instead of using the number of online nodes
     which is not reflecting the real topology.
 
   - Stop the PIT timer 0 when its not in use as to stop pointless emulation
     in the VMM.
 
   - Fix the PIT timer stop sequence for timer 0 so it truly stops both real
     hardware and buggy VMM emulations.
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Merge tag 'x86-timers-2024-09-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 timer updates from Thomas Gleixner:

 - Use the topology information of number of packages for making the
   decision about TSC trust instead of using the number of online nodes
   which is not reflecting the real topology.

 - Stop the PIT timer 0 when its not in use as to stop pointless
   emulation in the VMM.

 - Fix the PIT timer stop sequence for timer 0 so it truly stops both
   real hardware and buggy VMM emulations.

* tag 'x86-timers-2024-09-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/tsc: Check for sockets instead of CPUs to make code match comment
  clockevents/drivers/i8253: Fix stop sequence for timer 0
  x86/i8253: Disable PIT timer 0 when not in use
  x86/tsc: Use topology_max_packages() to get package number
2024-09-17 15:27:01 +02:00
Linus Torvalds
b507535474 Miscellaneous updates for x86:
- Rework kcpuid to handle the the autogenerated CSV file correctly and
     update the CSV file to cover the whole zoo of CPUID.
 
   - Avoid memcpy() for ia32 syscall_get_arguments() and use direct
     assignments as fortified memcpy() is unhappy about writing/reading
     beyond the end of the addresses destination/source struct member
 
   - A few new PCI IDs for AMD
 
   - Update MAINTAINERS to cover x86 specific selftests
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Merge tag 'x86-misc-2024-09-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull misc x86 updates from Thomas Gleixner:

 - Rework kcpuid to handle the the autogenerated CSV file correctly and
   update the CSV file to cover the whole zoo of CPUID.

 - Avoid memcpy() for ia32 syscall_get_arguments() and use direct
   assignments as fortified memcpy() is unhappy about writing/reading
   beyond the end of the addresses destination/source struct member

 - A few new PCI IDs for AMD

 - Update MAINTAINERS to cover x86 specific selftests

* tag 'x86-misc-2024-09-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  MAINTAINERS: Add selftests/x86 entry
  x86/amd_nb: Add new PCI IDs for AMD family 1Ah model 60h-70h
  x86/syscall: Avoid memcpy() for ia32 syscall_get_arguments()
  MAINTAINERS: Add x86 cpuid database entry
  tools/x86/kcpuid: Introduce a complete cpuid bitfields CSV file
  tools/x86/kcpuid: Parse subleaf ranges if provided
  tools/x86/kcpuid: Recognize all leaves with subleaves
  tools/x86/kcpuid: Strip bitfield names leading/trailing whitespace
  tools/x86/kcpuid: Protect against faulty "max subleaf" values
  tools/x86/kcpuid: Set max possible subleaves count to 64
  tools/x86/kcpuid: Properly align long-description columns
  tools/x86/kcpuid: Remove unused variable
  x86/amd_nb: Add new PCI IDs for AMD family 1Ah model 60h
2024-09-17 15:18:45 +02:00
Linus Torvalds
70f43ea3a3 Updates for x86 memory management:
- Make LAM enablement safe vs. kernel threads using a process mm
    temporarily as switching back to the process would not update CR3 and
    therefore not enable LAM causing faults in user space when using tagged
    pointers. Cure it by synchronizing LAM enablement via IPIs to all CPUs
    which use the related mm.
 
  - Cure a LAM harmless inconsistency between CR3 and the state during
    context switch. It's both confusing and prone to lead to real bugs
 
  - Handle alt stack handling for threads which run with a non-zero
    protection key. The non-zero key prevents the kernel to access the
    alternate stack. Cure it by temporarily enabling all protection keys for
    the alternate stack setup/restore operations.
 
  - Provide a EFI config table identity mapping for kexec kernel to prevent
    kexec fails because the new kernel cannot access the config table array
 
  - Use GB pages only when a full GB is mapped in the identity map as
    otherwise the CPU can speculate into reserved areas after the end of
    memory which causes malfunction on UV systems.
 
  - Remove the noisy and pointless SRAT table dump during boot
 
  - Use is_ioremap_addr() for iounmap() address range checks instead of
    high_memory. is_ioremap_addr() is more precise.
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Merge tag 'x86-mm-2024-09-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 memory management updates from Thomas Gleixner:

 - Make LAM enablement safe vs. kernel threads using a process mm
   temporarily as switching back to the process would not update CR3 and
   therefore not enable LAM causing faults in user space when using
   tagged pointers. Cure it by synchronizing LAM enablement via IPIs to
   all CPUs which use the related mm.

 - Cure a LAM harmless inconsistency between CR3 and the state during
   context switch. It's both confusing and prone to lead to real bugs

 - Handle alt stack handling for threads which run with a non-zero
   protection key. The non-zero key prevents the kernel to access the
   alternate stack. Cure it by temporarily enabling all protection keys
   for the alternate stack setup/restore operations.

 - Provide a EFI config table identity mapping for kexec kernel to
   prevent kexec fails because the new kernel cannot access the config
   table array

 - Use GB pages only when a full GB is mapped in the identity map as
   otherwise the CPU can speculate into reserved areas after the end of
   memory which causes malfunction on UV systems.

 - Remove the noisy and pointless SRAT table dump during boot

 - Use is_ioremap_addr() for iounmap() address range checks instead of
   high_memory. is_ioremap_addr() is more precise.

* tag 'x86-mm-2024-09-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/ioremap: Improve iounmap() address range checks
  x86/mm: Remove duplicate check from build_cr3()
  x86/mm: Remove unused NX related declarations
  x86/mm: Remove unused CR3_HW_ASID_BITS
  x86/mm: Don't print out SRAT table information
  x86/mm/ident_map: Use gbpages only where full GB page should be mapped.
  x86/kexec: Add EFI config table identity mapping for kexec kernel
  selftests/mm: Add new testcases for pkeys
  x86/pkeys: Restore altstack access in sigreturn()
  x86/pkeys: Update PKRU to enable all pkeys before XSAVE
  x86/pkeys: Add helper functions to update PKRU on the sigframe
  x86/pkeys: Add PKRU as a parameter in signal handling functions
  x86/mm: Cleanup prctl_enable_tagged_addr() nr_bits error checking
  x86/mm: Fix LAM inconsistency during context switch
  x86/mm: Use IPIs to synchronize LAM enablement
2024-09-17 15:03:01 +02:00
Linus Torvalds
c3056a7d14 Provide FPU buffer layout in core dumps:
Debuggers have guess the FPU buffer layout in core dumps, which is error
   prone. This is because AMD and Intel layouts differ.
 
   To avoid buggy heuristics add a ELF section which describes the buffer
   layout which can be retrieved by tools.
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Merge tag 'x86-fpu-2024-09-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fpu updates from Thomas Gleixner:
 "Provide FPU buffer layout in core dumps:

  Debuggers have guess the FPU buffer layout in core dumps, which is
  error prone. This is because AMD and Intel layouts differ.

  To avoid buggy heuristics add a ELF section which describes the buffer
  layout which can be retrieved by tools"

* tag 'x86-fpu-2024-09-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/elf: Add a new FPU buffer layout info to x86 core files
2024-09-17 14:46:17 +02:00
Linus Torvalds
dea435d397 Enable UBSAN traps for x86, which provides better reporting through
metadata encodeded into UD1.
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Merge tag 'x86-core-2024-09-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 core update from Thomas Gleixner:
 "Enable UBSAN traps for x86, which provides better reporting through
  metadata encodeded into UD1"

* tag 'x86-core-2024-09-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/traps: Enable UBSAN traps on x86
2024-09-17 13:17:27 +02:00
Linus Torvalds
b8979c6b4d soc: driver updates for 6.12
The driver updates seem larger this time around, with changes
 is many of the SoC specific drivers, both the custom drivers/soc
 ones and the closely related subsystems (memory, bus, firmware,
 reset, ...).
 
 The at91 platform gains support for sam9x7 chips in the soc and
 power management code. This is the latest variant of one of the
 oldest still supported SoC families, using the ARM9 (ARMv5) core.
 
 As usual, the qualcomm snapdragon platform gets a ton of updates in many
 of their drivers to add more features and additional SoC support. Most
 of these are somewhat firmware related as the platform has a number of
 firmware based interfaces to the kernel. A notable addition here is the
 inclusion of trace events to two of these drivers.
 
 Herve Codina and Christophe Leroy are now sending updates for
 drivers/soc/fsl/ code through the SoC tree, this contains both PowerPC
 and Arm specific platforms and has previously been problematic to
 maintain. The first update here contains support for newer PowerPC
 variants and some cleanups.
 
 The turris mox firmware driver has a number of updates, mostly cleanups.
 
 The Arm SCMI firmware driver gets a major rework to modularize
 the existing code into separately loadable drivers for the various
 transports, the addition of custom NXP i.MX9 interfaces and a
 number of smaller updates.
 
 The Arm FF-A firmware driver gets a feature update to support
 the v1.2 version of the specification.
 
 The reset controller drivers have some smaller cleanups and a newly
 added driver for the Intel/Mobileye EyeQ5/EyeQ6 MIPS SoCs.
 
 The memory controller drivers get some cleanups and refactoring
 for Tegra, TI, Freescale/NXP and a couple more platforms.
 
 Finally there are lots of minor updates to firmware (raspberry pi,
 tegra, imx), bus (sunxi, omap, tegra) and soc (rockchips, tegra, amlogic,
 mediatek) drivers and their DT bindings.
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Merge tag 'soc-drivers-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC driver updates from Arnd Bergmann:
 "The driver updates seem larger this time around, with changes is many
  of the SoC specific drivers, both the custom drivers/soc ones and the
  closely related subsystems (memory, bus, firmware, reset, ...).

  The at91 platform gains support for sam9x7 chips in the soc and power
  management code. This is the latest variant of one of the oldest still
  supported SoC families, using the ARM9 (ARMv5) core.

  As usual, the qualcomm snapdragon platform gets a ton of updates in
  many of their drivers to add more features and additional SoC support.
  Most of these are somewhat firmware related as the platform has a
  number of firmware based interfaces to the kernel. A notable addition
  here is the inclusion of trace events to two of these drivers.

  Herve Codina and Christophe Leroy are now sending updates for
  drivers/soc/fsl/ code through the SoC tree, this contains both PowerPC
  and Arm specific platforms and has previously been problematic to
  maintain. The first update here contains support for newer PowerPC
  variants and some cleanups.

  The turris mox firmware driver has a number of updates, mostly
  cleanups.

  The Arm SCMI firmware driver gets a major rework to modularize the
  existing code into separately loadable drivers for the various
  transports, the addition of custom NXP i.MX9 interfaces and a number
  of smaller updates.

  The Arm FF-A firmware driver gets a feature update to support the v1.2
  version of the specification.

  The reset controller drivers have some smaller cleanups and a newly
  added driver for the Intel/Mobileye EyeQ5/EyeQ6 MIPS SoCs.

  The memory controller drivers get some cleanups and refactoring for
  Tegra, TI, Freescale/NXP and a couple more platforms.

  Finally there are lots of minor updates to firmware (raspberry pi,
  tegra, imx), bus (sunxi, omap, tegra) and soc (rockchips, tegra,
  amlogic, mediatek) drivers and their DT bindings"

* tag 'soc-drivers-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (212 commits)
  firmware: imx: remove duplicate scmi_imx_misc_ctrl_get()
  platform: cznic: turris-omnia-mcu: Fix error check in omnia_mcu_register_trng()
  bus: sunxi-rsb: Simplify code with dev_err_probe()
  soc: fsl: qe: ucc: Export ucc_mux_set_grant_tsa_bkpt
  soc: fsl: cpm1: qmc: Fix dependency on fsl_soc.h
  dt-bindings: arm: rockchip: Add rk3576 compatible string to pmu.yaml
  soc: fsl: qbman: Remove redundant warnings
  soc: fsl: qbman: Use iommu_paging_domain_alloc()
  MAINTAINERS: Add QE files related to the Freescale QMC controller
  soc: fsl: cpm1: qmc: Handle QUICC Engine (QE) soft-qmc firmware
  soc: fsl: cpm1: qmc: Add support for QUICC Engine (QE) implementation
  soc: fsl: qe: Add missing PUSHSCHED command
  soc: fsl: qe: Add resource-managed muram allocators
  soc: fsl: cpm1: qmc: Introduce qmc_version
  soc: fsl: cpm1: qmc: Rename SCC_GSMRL_MODE_QMC
  soc: fsl: cpm1: qmc: Handle RPACK initialization
  soc: fsl: cpm1: qmc: Rename qmc_chan_command()
  soc: fsl: cpm1: qmc: Introduce qmc_{init,exit}_xcc() and their CPM1 version
  soc: fsl: cpm1: qmc: Introduce qmc_init_resource() and its CPM1 version
  soc: fsl: cpm1: qmc: Re-order probe() operations
  ...
2024-09-17 10:48:09 +02:00
Linus Torvalds
7b17f5ebd5 soc: devicetree updates for 6.12
New SoC support for Broadcom bcm2712 (Raspberry Pi 5) and Renesas
 R9A09G057 (RZ/V2H(P)) and Qualcomm Snapdragon 414 (MSM8929), all three
 of these are variants of already supported chips, in particular the last
 one is almost identical to MSM8939.
 
 Lots of updates to Mediatek, ASpeed, Rockchips, Amlogic, Qualcomm,
 STM32, NXP i.MX, Sophgo, TI K3, Renesas, Microchip at91, NVIDIA Tegra,
 and T-HEAD.
 
 The added Qualcomm platform support once again dominates the changes,
 with seven phones and three laptops getting added in addition to
 many new features on existing machines. The Snapdragon X1E support
 specifically keeps improving.
 
 The other new machines are:
 
  - eight new machines using various 64-bit Rockchips SoCs, both
    on the consumer/gaming side and developer boards
  - three industrial boards with 64-bit i.MX, which is a very
    low number for them.
  - four more servers using a 32-bit Speed BMC
  - three boards using STM32MP1 SoCs
  - one new machine each using allwinner, amlogic, broadcom
    and renesas chips.
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Merge tag 'soc-dt-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC devicetree updates from Arnd Bergmann:
 "New SoC support for Broadcom bcm2712 (Raspberry Pi 5) and Renesas
  R9A09G057 (RZ/V2H(P)) and Qualcomm Snapdragon 414 (MSM8929), all three
  of these are variants of already supported chips, in particular the
  last one is almost identical to MSM8939.

  Lots of updates to Mediatek, ASpeed, Rockchips, Amlogic, Qualcomm,
  STM32, NXP i.MX, Sophgo, TI K3, Renesas, Microchip at91, NVIDIA Tegra,
  and T-HEAD.

  The added Qualcomm platform support once again dominates the changes,
  with seven phones and three laptops getting added in addition to many
  new features on existing machines. The Snapdragon X1E support
  specifically keeps improving.

  The other new machines are:

   - eight new machines using various 64-bit Rockchips SoCs, both on the
     consumer/gaming side and developer boards

   - three industrial boards with 64-bit i.MX, which is a very low
     number for them.

   - four more servers using a 32-bit Speed BMC

   - three boards using STM32MP1 SoCs

   - one new machine each using allwinner, amlogic, broadcom and renesas
     chips"

* tag 'soc-dt-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (672 commits)
  arm64: dts: allwinner: h5: NanoPi NEO Plus2: Use regulators for pio
  arm64: dts: mediatek: add audio support for mt8365-evk
  arm64: dts: mediatek: add afe support for mt8365 SoC
  arm64: dts: mediatek: mt8186-corsola: Disable DPI display interface
  arm64: dts: mediatek: mt8186: Add svs node
  arm64: dts: mediatek: mt8186: Add power domain for DPI
  arm64: dts: mediatek: mt8195: Correct clock order for dp_intf*
  arm64: dts: mt8183: add dpi node to mt8183
  arm64: dts: allwinner: h5: NanoPi Neo Plus2: Fix regulators
  arm64: dts: rockchip: add CAN0 and CAN1 interfaces to mecsbc board
  arm64: dts: rockchip: add CAN-FD controller nodes to rk3568
  arm64: dts: nuvoton: ma35d1: Add uart pinctrl settings
  arm64: dts: nuvoton: ma35d1: Add pinctrl and gpio nodes
  arm64: dts: nuvoton: Add syscon to the system-management node
  ARM: dts: Fix undocumented LM75 compatible nodes
  arm64: dts: toshiba: Fix pl011 and pl022 clocks
  ARM: dts: stm32: Use SAI to generate bit and frame clock on STM32MP15xx DHCOM PDK2
  ARM: dts: stm32: Switch bitclock/frame-master to flag on STM32MP15xx DHCOM PDK2
  ARM: dts: stm32: Sort properties in audio endpoints on STM32MP15xx DHCOM PDK2
  ARM: dts: stm32: Add MECIO1 and MECT1S board variants
  ...
2024-09-17 10:41:21 +02:00
Linus Torvalds
303ba85c60 spi: Updates for v6.12
This is quite a quiet release for sPI.  The one new core feature here is
 support for configuring the state of the MOSI pin when the bus is idle,
 there are some devices which are very fragile in this regard even when
 the chip select signal is not asserted.  Otherwise we have some new
 driver support, a bunch of small fixes and some general cleanup work.
 
  - Support for configuring the state of the MOSI pin when the the bus is
    idle.
  - Add the Elgin JG0309-01 in spidev.
  - Support for Marvell xSPI, Mediatek MTK7981, Microchip PIC64GX,
    NXP i.MX8ULP, and Rockchip RK3576 controllers.
 
 I also accidentally pulled in an IIO DT bindings update due to a typo
 when applying the MOSI idle state patches.
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Merge tag 'spi-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "This is quite a quiet release for SPI. The one new core feature here
  is support for configuring the state of the MOSI pin when the bus is
  idle, there are some devices which are very fragile in this regard
  even when the chip select signal is not asserted. Otherwise we have
  some new driver support, a bunch of small fixes and some general
  cleanup work.

   - Support for configuring the state of the MOSI pin when the the bus
     is idle

   - Add the Elgin JG0309-01 in spidev

   - Support for Marvell xSPI, Mediatek MTK7981, Microchip PIC64GX, NXP
     i.MX8ULP, and Rockchip RK3576 controllers

  I also accidentally pulled in an IIO DT bindings update due to a typo
  when applying the MOSI idle state patches"

* tag 'spi-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (65 commits)
  spi: geni-qcom: Use devm functions to simplify code
  spi: remove spi_controller_is_slave() and spi_slave_abort()
  platform/olpc: olpc-xo175-ec: switch to use spi_target_abort().
  spi: slave-mt27xx: switch to use target_abort
  spi: spidev: switch to use spi_target_abort()
  spi: slave-system-control: switch to use spi_target_abort()
  spi: slave-time: switch to use spi_target_abort()
  spi: switch to use spi_controller_is_target()
  spi: fspi: add support for imx8ulp
  spi: fspi: involve lut_num for struct nxp_fspi_devtype_data
  dt-bindings: spi: nxp-fspi: add imx8ulp support
  spi: spidev_fdx: Fix the wrong format specifier
  spi: mxs: Switch to RUNTIME/SYSTEM_SLEEP_PM_OPS()
  spi: dt-bindings: Add rockchip,rk3576-spi compatible
  spi: Revert "spi: Insert the missing pci_dev_put()before return"
  spi: zynq-qspi: Replace kzalloc with kmalloc for buffer allocation
  spi: ppc4xx: Sort headers
  spi: ppc4xx: Revert "handle irq_of_parse_and_map() errors"
  spi: zynqmp-gqspi: Simplify with dev_err_probe()
  spi: zynqmp-gqspi: Use devm_spi_alloc_host()
  ...
2024-09-17 10:31:31 +02:00
Linus Torvalds
6df9280860 regulator: Updates for v6.12
This release is almost all cleanup work of various kinds, while the
 diffstat for the core is quite large this is almost all cleanups and
 documentation improvments with some small fixes rather than any new
 feature work.  We do have support for a couple of new devices but these
 are small additions to existing drivers rather than new drivers.
 
  - Removal of the SM5703 driver which does not have it's dependencies
    available.
  - Support for Allwinner AXP717, and Qualcomm WCN6855.
 
 The Allwinner support shares some commits with the MFD tree.
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Merge tag 'regulator-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "This release is almost all cleanup work of various kinds, while the
  diffstat for the core is quite large this is almost all cleanups and
  documentation improvments with some small fixes rather than any new
  feature work. We do have support for a couple of new devices but these
  are small additions to existing drivers rather than new drivers.

   - Removal of the SM5703 driver which does not have it's dependencies
     available.

   - Support for Allwinner AXP717, and Qualcomm WCN6855.

  The Allwinner support shares some commits with the MFD tree"

* tag 'regulator-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (66 commits)
  regulator: sm5703: Remove because it is unused and fails to build
  regulator: Split up _regulator_get()
  regulator: update some comments ([gs]et_voltage_vsel vs [gs]et_voltage_sel)
  regulator: max8973: Use irq_get_trigger_type() helper
  regulator: core: fix the broken behavior of regulator_dev_lookup()
  regulator: max77650: Use container_of and constify static data
  regulator: hi6421v530: Use container_of and constify static data
  regulator: hi6421v530: Drop unused 'eco_microamp'
  regulator: qcom-refgen: Constify static data
  regulator: pfuze100: Constify static data
  regulator: pcap: Constify static data
  regulator: mtk-dvfsrc: Constify static data
  regulator: max77826: Constify static data
  regulator: max77826: Drop unused 'rdesc' in 'struct max77826_regulator_info'
  regulator: tps65023: Constify static data
  regulator: hi6421v600: Constify static data
  regulator: hi6421: Constify static data
  regulator: da9121: Constify static data
  regulator: da9063: Constify static data
  regulator: da9055: Constify static data
  ...
2024-09-17 10:26:21 +02:00
Linus Torvalds
9179b73aa7 regmap: Updates for v6.12
The main update here is Matti's work allowing regmap irqdomains to be
 given custom names (allowing multiple interrupt controllers associatd
 with a single struct device), this pulls in some commits from Thomas'
 tree which it depends on.  Otherwise there's a bit of work on improving
 handling of regmaps protected with spinlocks when used with complex
 cache types, fixing some valid but harmless lockdep reports seen with
 some new driver work.
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Merge tag 'regmap-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap updates from Mark Brown:
 "The main update here is Matti's work allowing regmap irqdomains to be
  given custom names (allowing multiple interrupt controllers associatd
  with a single struct device), this pulls in some commits from Thomas'
  tree which it depends on.

  Otherwise there's a bit of work on improving handling of regmaps
  protected with spinlocks when used with complex cache types, fixing
  some valid but harmless lockdep reports seen with some new driver
  work"

* tag 'regmap-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: kunit: Add coverage of spinlocked regmaps
  regcache: use map->alloc_flags also for allocating cache
  regmap: Use locking during kunit tests
  regmap: Hold the regmap lock when allocating and freeing the cache
  regmap: Allow setting IRQ domain name suffix
2024-09-17 10:18:01 +02:00
Linus Torvalds
c903327d32 printk changes for 6.12
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Merge tag 'printk-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux

Pull printk updates from Petr Mladek:
 "This is the "last" part of the support for the new nbcon consoles.
  Where "nbcon" stays for "No Big console lock CONsoles" aka not under
  the console_lock.

  New callbacks are added to struct console:

   - write_thread() for flushing nbcon consoles in task context.

   - write_atomic() for flushing nbcon consoles in atomic context,
     including NMI.

   - con->device_lock() and device_unlock() for taking the driver
     specific lock, for example, port->lock.

  New printk-specific kthreads are created:

   - per-console kthreads which get responsible for flushing normal
     priority messages on nbcon consoles.

   - thread which gets responsible for flushing normal priority messages
     on all consoles when CONFIG_RT enabled.

  The new callbacks are called under a special per-console lock which
  has already been added back in v6.7. It allows to distinguish three
  severities: normal, emergency, and panic. A context with a higher
  priority could take over the ownership when it is safe even in the
  middle of handling a record. The panic context could do it even when
  it is not safe. But it is allowed only for the final desperate flush
  before entering the infinite loop.

  The new lock helps to flush the messages directly in emergency and
  panic contexts. But it is not enough in all situations:

   - console_lock() is still need for synchronization against boot
     consoles.

   - con->device_lock() is need for synchronization against other
     operations on the same HW, e.g. serial port speed setting,
     non-printk related read/write.

  The dependency on con->device_lock() is mutual. Any code taking the
  driver specific lock has to acquire the related nbcon console context
  as well. For example, see the new uart_port_lock() API. It provides
  the necessary synchronization against emergency and panic contexts
  where the messages are flushed only under the new per-console lock.

  Maybe surprisingly, a quite tricky part is the decision how to flush
  the consoles in various situations. It has to take into account:

   - message priority:    normal, emergency, panic

   - scheduling context:  task, atomic, deferred_legacy

   - registered consoles: boot, legacy, nbcon

   - threads are running: early boot, suspend, shutdown, panic

   - caller:              printk(), pr_flush(), printk_flush_in_panic(),
                          console_unlock(), console_start(), ...

  The primary decision is made in printk_get_console_flush_type(). It
  creates a hint what the caller should do:

   - flush nbcon consoles directly or via the kthread

   - call the legacy loop (console_unlock()) directly or via irq_work

  The existing behavior is preserved for the legacy consoles. The only
  exception is that they are not longer flushed directly from printk()
  in panic() before CPUs are stopped. But this blocking happens only
  when at least one nbcon console is registered. The motivation is to
  increase a chance to produce the crash dump. They legacy consoles
  might create a deadlock in compare with nbcon consoles. The nbcon
  console should allow to see the messages even when the crash dump
  fails.

  There are three possible ways how nbcon consoles are flushed:

   - The per-nbcon-console kthread is responsible for flushing messages
     added with the normal priority. This is the default mode.

   - The legacy loop, aka console_unlock(), is used when there is still
     a boot console registered. There is no easy way how to match an
     early console driver with a nbcon console driver. And the
     console_lock() provides the only reliable serialization at the
     moment.

     The legacy loop uses either con->write_atomic() or
     con->write_thread() callbacks depending on whether it is allowed to
     schedule. The atomic variant has to be used from printk().

   - In other situations, the messages are flushed directly using
     write_atomic() which can be called in any context, including NMI.
     It is primary needed during early boot or shutdown, in emergency
     situations, and panic.

  The emergency priority is used by a code called within
  nbcon_cpu_emergency_enter()/exit(). At the moment, it is used in four
  situations: WARN(), Oops, lockdep, and RCU stall reports.

  Finally, there is no nbcon console at the moment. It means that the
  changes should _not_ modify the existing behavior. The only exception
  is CONFIG_RT which would force offloading the legacy loop, for normal
  priority context, into the dedicated kthread"

* tag 'printk-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: (54 commits)
  printk: Avoid false positive lockdep report for legacy printing
  printk: nbcon: Assign nice -20 for printing threads
  printk: Implement legacy printer kthread for PREEMPT_RT
  tty: sysfs: Add nbcon support for 'active'
  proc: Add nbcon support for /proc/consoles
  proc: consoles: Add notation to c_start/c_stop
  printk: nbcon: Show replay message on takeover
  printk: Provide helper for message prepending
  printk: nbcon: Rely on kthreads for normal operation
  printk: nbcon: Use thread callback if in task context for legacy
  printk: nbcon: Relocate nbcon_atomic_emit_one()
  printk: nbcon: Introduce printer kthreads
  printk: nbcon: Init @nbcon_seq to highest possible
  printk: nbcon: Add context to usable() and emit()
  printk: Flush console on unregister_console()
  printk: Fail pr_flush() if before SYSTEM_SCHEDULING
  printk: nbcon: Add function for printers to reacquire ownership
  printk: nbcon: Use raw_cpu_ptr() instead of open coding
  printk: Use the BITS_PER_LONG macro
  lockdep: Mark emergency sections in lockdep splats
  ...
2024-09-17 08:52:28 +02:00
Linus Torvalds
9ea925c806 Updates for timers and timekeeping:
- Core:
 
 	- Overhaul of posix-timers in preparation of removing the
 	  workaround for periodic timers which have signal delivery
 	  ignored.
 
         - Remove the historical extra jiffie in msleep()
 
 	  msleep() adds an extra jiffie to the timeout value to ensure
 	  minimal sleep time. The timer wheel ensures minimal sleep
 	  time since the large rewrite to a non-cascading wheel, but the
 	  extra jiffie in msleep() remained unnoticed. Remove it.
 
         - Make the timer slack handling correct for realtime tasks.
 
 	  The procfs interface is inconsistent and does neither reflect
 	  reality nor conforms to the man page. Show the correct 0 slack
 	  for real time tasks and enforce it at the core level instead of
 	  having inconsistent individual checks in various timer setup
 	  functions.
 
         - The usual set of updates and enhancements all over the place.
 
   - Drivers:
 
         - Allow the ACPI PM timer to be turned off during suspend
 
 	- No new drivers
 
 	- The usual updates and enhancements in various drivers
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Merge tag 'timers-core-2024-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer updates from Thomas Gleixner:
 "Core:

   - Overhaul of posix-timers in preparation of removing the workaround
     for periodic timers which have signal delivery ignored.

   - Remove the historical extra jiffie in msleep()

     msleep() adds an extra jiffie to the timeout value to ensure
     minimal sleep time. The timer wheel ensures minimal sleep time
     since the large rewrite to a non-cascading wheel, but the extra
     jiffie in msleep() remained unnoticed. Remove it.

   - Make the timer slack handling correct for realtime tasks.

     The procfs interface is inconsistent and does neither reflect
     reality nor conforms to the man page. Show the correct 0 slack for
     real time tasks and enforce it at the core level instead of having
     inconsistent individual checks in various timer setup functions.

   - The usual set of updates and enhancements all over the place.

  Drivers:

   - Allow the ACPI PM timer to be turned off during suspend

   - No new drivers

   - The usual updates and enhancements in various drivers"

* tag 'timers-core-2024-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (43 commits)
  ntp: Make sure RTC is synchronized when time goes backwards
  treewide: Fix wrong singular form of jiffies in comments
  cpu: Use already existing usleep_range()
  timers: Rename next_expiry_recalc() to be unique
  platform/x86:intel/pmc: Fix comment for the pmc_core_acpi_pm_timer_suspend_resume function
  clocksource/drivers/jcore: Use request_percpu_irq()
  clocksource/drivers/cadence-ttc: Add missing clk_disable_unprepare in ttc_setup_clockevent
  clocksource/drivers/asm9260: Add missing clk_disable_unprepare in asm9260_timer_init
  clocksource/drivers/qcom: Add missing iounmap() on errors in msm_dt_timer_init()
  clocksource/drivers/ingenic: Use devm_clk_get_enabled() helpers
  platform/x86:intel/pmc: Enable the ACPI PM Timer to be turned off when suspended
  clocksource: acpi_pm: Add external callback for suspend/resume
  clocksource/drivers/arm_arch_timer: Using for_each_available_child_of_node_scoped()
  dt-bindings: timer: rockchip: Add rk3576 compatible
  timers: Annotate possible non critical data race of next_expiry
  timers: Remove historical extra jiffie for timeout in msleep()
  hrtimer: Use and report correct timerslack values for realtime tasks
  hrtimer: Annotate hrtimer_cpu_base_.*_expiry() for sparse.
  timers: Add sparse annotation for timer_sync_wait_running().
  signal: Replace BUG_ON()s
  ...
2024-09-17 07:25:37 +02:00
Linus Torvalds
cb69d86550 Updates for the interrupt subsystem:
- Core:
 	- Remove a global lock in the affinity setting code
 
 	  The lock protects a cpumask for intermediate results and the lock
 	  causes a bottleneck on simultaneous start of multiple virtual
 	  machines. Replace the lock and the static cpumask with a per CPU
 	  cpumask which is nicely serialized by raw spinlock held when
 	  executing this code.
 
 	- Provide support for giving a suffix to interrupt domain names.
 
 	  That's required to support devices with subfunctions so that the
 	  domain names are distinct even if they originate from the same
 	  device node.
 
 	- The usual set of cleanups and enhancements all over the place
 
   - Drivers:
 
 	- Support for longarch AVEC interrupt chip
 
 	- Refurbishment of the Armada driver so it can be extended for new
           variants.
 
 	- The usual set of cleanups and enhancements all over the place
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Merge tag 'irq-core-2024-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq updates from Thomas Gleixner:
 "Core:

   - Remove a global lock in the affinity setting code

     The lock protects a cpumask for intermediate results and the lock
     causes a bottleneck on simultaneous start of multiple virtual
     machines. Replace the lock and the static cpumask with a per CPU
     cpumask which is nicely serialized by raw spinlock held when
     executing this code.

   - Provide support for giving a suffix to interrupt domain names.

     That's required to support devices with subfunctions so that the
     domain names are distinct even if they originate from the same
     device node.

   - The usual set of cleanups and enhancements all over the place

  Drivers:

   - Support for longarch AVEC interrupt chip

   - Refurbishment of the Armada driver so it can be extended for new
     variants.

   - The usual set of cleanups and enhancements all over the place"

* tag 'irq-core-2024-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (73 commits)
  genirq: Use cpumask_intersects()
  genirq/cpuhotplug: Use cpumask_intersects()
  irqchip/apple-aic: Only access system registers on SoCs which provide them
  irqchip/apple-aic: Add a new "Global fast IPIs only" feature level
  irqchip/apple-aic: Skip unnecessary enabling of use_fast_ipi
  dt-bindings: apple,aic: Document A7-A11 compatibles
  irqdomain: Use IS_ERR_OR_NULL() in irq_domain_trim_hierarchy()
  genirq/msi: Use kmemdup_array() instead of kmemdup()
  genirq/proc: Change the return value for set affinity permission error
  genirq/proc: Use irq_move_pending() in show_irq_affinity()
  genirq/proc: Correctly set file permissions for affinity control files
  genirq: Get rid of global lock in irq_do_set_affinity()
  genirq: Fix typo in struct comment
  irqchip/loongarch-avec: Add AVEC irqchip support
  irqchip/loongson-pch-msi: Prepare get_pch_msi_handle() for AVECINTC
  irqchip/loongson-eiointc: Rename CPUHP_AP_IRQ_LOONGARCH_STARTING
  LoongArch: Architectural preparation for AVEC irqchip
  LoongArch: Move irqchip function prototypes to irq-loongson.h
  irqchip/loongson-pch-msi: Switch to MSI parent domains
  softirq: Remove unused 'action' parameter from action callback
  ...
2024-09-17 07:09:17 +02:00
Linus Torvalds
97e17c08a4 A set of updates for CPU hotplug:
- Prepare the core for supporting parallel hotplug on loongarch
 
   - A small set of cleanups and enhancements
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Merge tag 'smp-core-2024-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull CPU hotplug updates from Thomas Gleixner:

 - Prepare the core for supporting parallel hotplug on loongarch

 - A small set of cleanups and enhancements

* tag 'smp-core-2024-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  smp: Mark smp_prepare_boot_cpu() __init
  cpu: Fix W=1 build kernel-doc warning
  cpu/hotplug: Provide weak fallback for arch_cpuhp_init_parallel_bringup()
  cpu/hotplug: Make HOTPLUG_PARALLEL independent of HOTPLUG_SMT
2024-09-17 06:56:31 +02:00
Linus Torvalds
a430d95c5e lsm/stable-6.12 PR 20240911
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Merge tag 'lsm-pr-20240911' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm

Pull lsm updates from Paul Moore:

 - Move the LSM framework to static calls

   This transitions the vast majority of the LSM callbacks into static
   calls. Those callbacks which haven't been converted were left as-is
   due to the general ugliness of the changes required to support the
   static call conversion; we can revisit those callbacks at a future
   date.

 - Add the Integrity Policy Enforcement (IPE) LSM

   This adds a new LSM, Integrity Policy Enforcement (IPE). There is
   plenty of documentation about IPE in this patches, so I'll refrain
   from going into too much detail here, but the basic motivation behind
   IPE is to provide a mechanism such that administrators can restrict
   execution to only those binaries which come from integrity protected
   storage, e.g. a dm-verity protected filesystem. You will notice that
   IPE requires additional LSM hooks in the initramfs, dm-verity, and
   fs-verity code, with the associated patches carrying ACK/review tags
   from the associated maintainers. We couldn't find an obvious
   maintainer for the initramfs code, but the IPE patchset has been
   widely posted over several years.

   Both Deven Bowers and Fan Wu have contributed to IPE's development
   over the past several years, with Fan Wu agreeing to serve as the IPE
   maintainer moving forward. Once IPE is accepted into your tree, I'll
   start working with Fan to ensure he has the necessary accounts, keys,
   etc. so that he can start submitting IPE pull requests to you
   directly during the next merge window.

 - Move the lifecycle management of the LSM blobs to the LSM framework

   Management of the LSM blobs (the LSM state buffers attached to
   various kernel structs, typically via a void pointer named "security"
   or similar) has been mixed, some blobs were allocated/managed by
   individual LSMs, others were managed by the LSM framework itself.

   Starting with this pull we move management of all the LSM blobs,
   minus the XFRM blob, into the framework itself, improving consistency
   across LSMs, and reducing the amount of duplicated code across LSMs.
   Due to some additional work required to migrate the XFRM blob, it has
   been left as a todo item for a later date; from a practical
   standpoint this omission should have little impact as only SELinux
   provides a XFRM LSM implementation.

 - Fix problems with the LSM's handling of F_SETOWN

   The LSM hook for the fcntl(F_SETOWN) operation had a couple of
   problems: it was racy with itself, and it was disconnected from the
   associated DAC related logic in such a way that the LSM state could
   be updated in cases where the DAC state would not. We fix both of
   these problems by moving the security_file_set_fowner() hook into the
   same section of code where the DAC attributes are updated. Not only
   does this resolve the DAC/LSM synchronization issue, but as that code
   block is protected by a lock, it also resolve the race condition.

 - Fix potential problems with the security_inode_free() LSM hook

   Due to use of RCU to protect inodes and the placement of the LSM hook
   associated with freeing the inode, there is a bit of a challenge when
   it comes to managing any LSM state associated with an inode. The VFS
   folks are not open to relocating the LSM hook so we have to get
   creative when it comes to releasing an inode's LSM state.
   Traditionally we have used a single LSM callback within the hook that
   is triggered when the inode is "marked for death", but not actually
   released due to RCU.

   Unfortunately, this causes problems for LSMs which want to take an
   action when the inode's associated LSM state is actually released; so
   we add an additional LSM callback, inode_free_security_rcu(), that is
   called when the inode's LSM state is released in the RCU free
   callback.

 - Refactor two LSM hooks to better fit the LSM return value patterns

   The vast majority of the LSM hooks follow the "return 0 on success,
   negative values on failure" pattern, however, there are a small
   handful that have unique return value behaviors which has caused
   confusion in the past and makes it difficult for the BPF verifier to
   properly vet BPF LSM programs. This includes patches to
   convert two of these"special" LSM hooks to the common 0/-ERRNO pattern.

 - Various cleanups and improvements

   A handful of patches to remove redundant code, better leverage the
   IS_ERR_OR_NULL() helper, add missing "static" markings, and do some
   minor style fixups.

* tag 'lsm-pr-20240911' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm: (40 commits)
  security: Update file_set_fowner documentation
  fs: Fix file_set_fowner LSM hook inconsistencies
  lsm: Use IS_ERR_OR_NULL() helper function
  lsm: remove LSM_COUNT and LSM_CONFIG_COUNT
  ipe: Remove duplicated include in ipe.c
  lsm: replace indirect LSM hook calls with static calls
  lsm: count the LSMs enabled at compile time
  kernel: Add helper macros for loop unrolling
  init/main.c: Initialize early LSMs after arch code, static keys and calls.
  MAINTAINERS: add IPE entry with Fan Wu as maintainer
  documentation: add IPE documentation
  ipe: kunit test for parser
  scripts: add boot policy generation program
  ipe: enable support for fs-verity as a trust provider
  fsverity: expose verified fsverity built-in signatures to LSMs
  lsm: add security_inode_setintegrity() hook
  ipe: add support for dm-verity as a trust provider
  dm-verity: expose root hash digest and signature data to LSMs
  block,lsm: add LSM blob and new LSM hooks for block devices
  ipe: add permissive toggle
  ...
2024-09-16 18:19:47 +02:00
Uwe Kleine-König
4c82005f17 Immutable branch between MFD, GPIO and PWM due for the v6.12 merge window
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Merge tag 'ib-mfd-gpio-pwm-v6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Immutable branch between MFD, GPIO and PWM due for the v6.12 merge window
2024-09-16 15:24:38 +02:00
Linus Torvalds
adfc3ded5c for-6.12/io_uring-discard-20240913
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Merge tag 'for-6.12/io_uring-discard-20240913' of git://git.kernel.dk/linux

Pull io_uring async discard support from Jens Axboe:
 "Sitting on top of both the 6.12 block and io_uring core branches,
  here's support for async discard through io_uring.

  This allows applications to issue async discards, rather than rely on
  the blocking sync ioctl discards we already have. The sync support is
  difficult to use outside of idle/cleanup periods.

  On a real (but slow) device, testing shows the following results when
  compared to sync discard:

	qd64 sync discard: 21K IOPS, lat avg 3 msec (max 21 msec)
	qd64 async discard: 76K IOPS, lat avg 845 usec (max 2.2 msec)

	qd64 sync discard: 14K IOPS, lat avg 5 msec (max 25 msec)
	qd64 async discard: 56K IOPS, lat avg 1153 usec (max 3.6 msec)

  and synthetic null_blk testing with the same queue depth and block
  size settings as above shows:

	Type    Trim size       IOPS    Lat avg (usec)  Lat Max (usec)
	==============================================================
	sync    4k               144K       444            20314
	async   4k              1353K        47              595
	sync    1M                56K      1136            21031
	async   1M                94K       680              760"

* tag 'for-6.12/io_uring-discard-20240913' of git://git.kernel.dk/linux:
  block: implement async io_uring discard cmd
  block: introduce blk_validate_byte_range()
  filemap: introduce filemap_invalidate_pages
  io_uring/cmd: give inline space in request to cmds
  io_uring/cmd: expose iowq to cmds
2024-09-16 13:50:14 +02:00
Linus Torvalds
26bb0d3f38 for-6.12/block-20240913
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Merge tag 'for-6.12/block-20240913' of git://git.kernel.dk/linux

Pull block updates from Jens Axboe:

 - MD changes via Song:
      - md-bitmap refactoring (Yu Kuai)
      - raid5 performance optimization (Artur Paszkiewicz)
      - Other small fixes (Yu Kuai, Chen Ni)
      - Add a sysfs entry 'new_level' (Xiao Ni)
      - Improve information reported in /proc/mdstat (Mateusz Kusiak)

 - NVMe changes via Keith:
      - Asynchronous namespace scanning (Stuart)
      - TCP TLS updates (Hannes)
      - RDMA queue controller validation (Niklas)
      - Align field names to the spec (Anuj)
      - Metadata support validation (Puranjay)
      - A syntax cleanup (Shen)
      - Fix a Kconfig linking error (Arnd)
      - New queue-depth quirk (Keith)

 - Add missing unplug trace event (Keith)

 - blk-iocost fixes (Colin, Konstantin)

 - t10-pi modular removal and fixes (Alexey)

 - Fix for potential BLKSECDISCARD overflow (Alexey)

 - bio splitting cleanups and fixes (Christoph)

 - Deal with folios rather than rather than pages, speeding up how the
   block layer handles bigger IOs (Kundan)

 - Use spinlocks rather than bit spinlocks in zram (Sebastian, Mike)

 - Reduce zoned device overhead in ublk (Ming)

 - Add and use sendpages_ok() for drbd and nvme-tcp (Ofir)

 - Fix regression in partition error pointer checking (Riyan)

 - Add support for write zeroes and rotational status in nbd (Wouter)

 - Add Yu Kuai as new BFQ maintainer. The scheduler has been
   unmaintained for quite a while.

 - Various sets of fixes for BFQ (Yu Kuai)

 - Misc fixes and cleanups (Alvaro, Christophe, Li, Md Haris, Mikhail,
   Yang)

* tag 'for-6.12/block-20240913' of git://git.kernel.dk/linux: (120 commits)
  nvme-pci: qdepth 1 quirk
  block: fix potential invalid pointer dereference in blk_add_partition
  blk_iocost: make read-only static array vrate_adj_pct const
  block: unpin user pages belonging to a folio at once
  mm: release number of pages of a folio
  block: introduce folio awareness and add a bigger size from folio
  block: Added folio-ized version of bio_add_hw_page()
  block, bfq: factor out a helper to split bfqq in bfq_init_rq()
  block, bfq: remove local variable 'bfqq_already_existing' in bfq_init_rq()
  block, bfq: remove local variable 'split' in bfq_init_rq()
  block, bfq: remove bfq_log_bfqg()
  block, bfq: merge bfq_release_process_ref() into bfq_put_cooperator()
  block, bfq: fix procress reference leakage for bfqq in merge chain
  block, bfq: fix uaf for accessing waker_bfqq after splitting
  blk-throttle: support prioritized processing of metadata
  blk-throttle: remove last_low_overflow_time
  drbd: Add NULL check for net_conf to prevent dereference in state validation
  nvme-tcp: fix link failure for TCP auth
  blk-mq: add missing unplug trace event
  mtip32xx: Remove redundant null pointer checks in mtip_hw_debugfs_init()
  ...
2024-09-16 13:33:06 +02:00
Linus Torvalds
3a4d319a8f for-6.12/io_uring-20240913
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Merge tag 'for-6.12/io_uring-20240913' of git://git.kernel.dk/linux

Pull io_uring updates from Jens Axboe:

 - NAPI fixes and cleanups (Pavel, Olivier)

 - Add support for absolute timeouts (Pavel)

 - Fixes for io-wq/sqpoll affinities (Felix)

 - Efficiency improvements for dealing with huge pages (Chenliang)

 - Support for a minwait mode, where the application essentially has two
   timouts - one smaller one that defines the batch timeout, and the
   overall large one similar to what we had before. This enables
   efficient use of batching based on count + timeout, while still
   working well with periods of less intensive workloads

 - Use ITER_UBUF for single segment sends

 - Add support for incremental buffer consumption. Right now each
   operation will always consume a full buffer. With incremental
   consumption, a recv/read operation only consumes the part of the
   buffer that it needs to satisfy the operation

 - Add support for GCOV for io_uring, to help retain a high coverage of
   test to code ratio

 - Fix regression with ocfs2, where an odd -EOPNOTSUPP wasn't correctly
   converted to a blocking retry

 - Add support for cloning registered buffers from one ring to another

 - Misc cleanups (Anuj, me)

* tag 'for-6.12/io_uring-20240913' of git://git.kernel.dk/linux: (35 commits)
  io_uring: add IORING_REGISTER_COPY_BUFFERS method
  io_uring/register: provide helper to get io_ring_ctx from 'fd'
  io_uring/rsrc: add reference count to struct io_mapped_ubuf
  io_uring/rsrc: clear 'slot' entry upfront
  io_uring/io-wq: inherit cpuset of cgroup in io worker
  io_uring/io-wq: do not allow pinning outside of cpuset
  io_uring/rw: drop -EOPNOTSUPP check in __io_complete_rw_common()
  io_uring/rw: treat -EOPNOTSUPP for IOCB_NOWAIT like -EAGAIN
  io_uring/sqpoll: do not allow pinning outside of cpuset
  io_uring/eventfd: move refs to refcount_t
  io_uring: remove unused rsrc_put_fn
  io_uring: add new line after variable declaration
  io_uring: add GCOV_PROFILE_URING Kconfig option
  io_uring/kbuf: add support for incremental buffer consumption
  io_uring/kbuf: pass in 'len' argument for buffer commit
  Revert "io_uring: Require zeroed sqe->len on provided-buffers send"
  io_uring/kbuf: move io_ring_head_to_buf() to kbuf.h
  io_uring/kbuf: add io_kbuf_commit() helper
  io_uring/kbuf: shrink nr_iovs/mode in struct buf_sel_arg
  io_uring: wire up min batch wake timeout
  ...
2024-09-16 13:29:00 +02:00
Linus Torvalds
7a40974fd0 for-6.12-tag
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Merge tag 'for-6.12-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
 "This brings mostly refactoring, cleanups, minor performance
  optimizations and usual fixes. The folio API conversions are most
  noticeable.

  There's one less visible change that could have a high impact. The
  extent lock scope for read is reduced, not held for the entire
  operation. In the buffered read case it's left to page or inode lock,
  some direct io read synchronization is still needed.

  This used to prevent deadlocks induced by page faults during direct
  io, so there was a 4K limitation on the requests, e.g. for io_uring.
  In the future this will allow smoother integration with iomap where
  the extent read lock was a major obstacle.

  User visible changes:

   - the FSTRIM ioctl updates the processed range even after an error or
     interruption

   - cleaner thread is woken up in SYNC ioctl instead of waking the
     transaction thread that can take some delay before waking up the
     cleaner, this can speed up cleaning of deleted subvolumes

   - print an error message when opening a device fail, e.g. when it's
     unexpectedly read-only

  Core changes:

   - improved extent map handling in various ways (locking, iteration, ...)

   - new assertions and locking annotations

   - raid-stripe-tree locking fixes

   - use xarray for tracking dirty qgroup extents, switched from rb-tree

   - turn the subpage test to compile-time condition if possible (e.g.
     on x86_64 with 4K pages), this allows to skip a lot of ifs and
     remove dead code

   - more preparatory work for compression in subpage mode

  Cleanups and refactoring

   - folio API conversions, many simple cases where page is passed so
     switch it to folios

   - more subpage code refactoring, update page state bitmap processing

   - introduce auto free for btrfs_path structure, use for the simple
     cases"

* tag 'for-6.12-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (110 commits)
  btrfs: only unlock the to-be-submitted ranges inside a folio
  btrfs: merge btrfs_folio_unlock_writer() into btrfs_folio_end_writer_lock()
  btrfs: BTRFS_PATH_AUTO_FREE in orphan.c
  btrfs: use btrfs_path auto free in zoned.c
  btrfs: DEFINE_FREE for struct btrfs_path
  btrfs: remove btrfs_folio_end_all_writers()
  btrfs: constify more pointer parameters
  btrfs: rework BTRFS_I as macro to preserve parameter const
  btrfs: add and use helper to verify the calling task has locked the inode
  btrfs: always update fstrim_range on failure in FITRIM ioctl
  btrfs: convert copy_inline_to_page() to use folio
  btrfs: convert btrfs_decompress() to take a folio
  btrfs: convert zstd_decompress() to take a folio
  btrfs: convert lzo_decompress() to take a folio
  btrfs: convert zlib_decompress() to take a folio
  btrfs: convert try_release_extent_mapping() to take a folio
  btrfs: convert try_release_extent_state() to take a folio
  btrfs: convert submit_eb_page() to take a folio
  btrfs: convert submit_eb_subpage() to take a folio
  btrfs: convert read_key_bytes() to take a folio
  ...
2024-09-16 13:10:46 +02:00
Linus Torvalds
35219bc5c7 vfs-6.12.netfs
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Merge tag 'vfs-6.12.netfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull netfs updates from Christian Brauner:
 "This contains the work to improve read/write performance for the new
  netfs library.

  The main performance enhancing changes are:

   - Define a structure, struct folio_queue, and a new iterator type,
     ITER_FOLIOQ, to hold a buffer as a replacement for ITER_XARRAY. See
     that patch for questions about naming and form.

     ITER_FOLIOQ is provided as a replacement for ITER_XARRAY. The
     problem with an xarray is that accessing it requires the use of a
     lock (typically the RCU read lock) - and this means that we can't
     supply iterate_and_advance() with a step function that might sleep
     (crypto for example) without having to drop the lock between pages.
     ITER_FOLIOQ is the iterator for a chain of folio_queue structs,
     where each folio_queue holds a small list of folios. A folio_queue
     struct is a simpler structure than xarray and is not subject to
     concurrent manipulation by the VM. folio_queue is used rather than
     a bvec[] as it can form lists of indefinite size, adding to one end
     and removing from the other on the fly.

   - Provide a copy_folio_from_iter() wrapper.

   - Make cifs RDMA support ITER_FOLIOQ.

   - Use folio queues in the write-side helpers instead of xarrays.

   - Add a function to reset the iterator in a subrequest.

   - Simplify the write-side helpers to use sheaves to skip gaps rather
     than trying to work out where gaps are.

   - In afs, make the read subrequests asynchronous, putting them into
     work items to allow the next patch to do progressive
     unlocking/reading.

   - Overhaul the read-side helpers to improve performance.

   - Fix the caching of a partial block at the end of a file.

   - Allow a store to be cancelled.

  Then some changes for cifs to make it use folio queues instead of
  xarrays for crypto bufferage:

   - Use raw iteration functions rather than manually coding iteration
     when hashing data.

   - Switch to using folio_queue for crypto buffers.

   - Remove the xarray bits.

  Make some adjustments to the /proc/fs/netfs/stats file such that:

   - All the netfs stats lines begin 'Netfs:' but change this to
     something a bit more useful.

   - Add a couple of stats counters to track the numbers of skips and
     waits on the per-inode writeback serialisation lock to make it
     easier to check for this as a source of performance loss.

  Miscellaneous work:

   - Ensure that the sb_writers lock is taken around
     vfs_{set,remove}xattr() in the cachefiles code.

   - Reduce the number of conditional branches in netfs_perform_write().

   - Move the CIFS_INO_MODIFIED_ATTR flag to the netfs_inode struct and
     remove cifs_post_modify().

   - Move the max_len/max_nr_segs members from netfs_io_subrequest to
     netfs_io_request as they're only needed for one subreq at a time.

   - Add an 'unknown' source value for tracing purposes.

   - Remove NETFS_COPY_TO_CACHE as it's no longer used.

   - Set the request work function up front at allocation time.

   - Use bh-disabling spinlocks for rreq->lock as cachefiles completion
     may be run from block-filesystem DIO completion in softirq context.

   - Remove fs/netfs/io.c"

* tag 'vfs-6.12.netfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (25 commits)
  docs: filesystems: corrected grammar of netfs page
  cifs: Don't support ITER_XARRAY
  cifs: Switch crypto buffer to use a folio_queue rather than an xarray
  cifs: Use iterate_and_advance*() routines directly for hashing
  netfs: Cancel dirty folios that have no storage destination
  cachefiles, netfs: Fix write to partial block at EOF
  netfs: Remove fs/netfs/io.c
  netfs: Speed up buffered reading
  afs: Make read subreqs async
  netfs: Simplify the writeback code
  netfs: Provide an iterator-reset function
  netfs: Use new folio_queue data type and iterator instead of xarray iter
  cifs: Provide the capability to extract from ITER_FOLIOQ to RDMA SGEs
  iov_iter: Provide copy_folio_from_iter()
  mm: Define struct folio_queue and ITER_FOLIOQ to handle a sequence of folios
  netfs: Use bh-disabling spinlocks for rreq->lock
  netfs: Set the request work function upon allocation
  netfs: Remove NETFS_COPY_TO_CACHE
  netfs: Reserve netfs_sreq_source 0 as unset/unknown
  netfs: Move max_len/max_nr_segs from netfs_io_subrequest to netfs_io_stream
  ...
2024-09-16 12:13:31 +02:00
Linus Torvalds
9020d0d844 vfs-6.12.mount
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Merge tag 'vfs-6.12.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs mount updates from Christian Brauner:
 "Recently, we added the ability to list mounts in other mount
  namespaces and the ability to retrieve namespace file descriptors
  without having to go through procfs by deriving them from pidfds.

  This extends nsfs in two ways:

   (1) Add the ability to retrieve information about a mount namespace
       via NS_MNT_GET_INFO.

       This will return the mount namespace id and the number of mounts
       currently in the mount namespace. The number of mounts can be
       used to size the buffer that needs to be used for listmount() and
       is in general useful without having to actually iterate through
       all the mounts.

      The structure is extensible.

   (2) Add the ability to iterate through all mount namespaces over
       which the caller holds privilege returning the file descriptor
       for the next or previous mount namespace.

       To retrieve a mount namespace the caller must be privileged wrt
       to it's owning user namespace. This means that PID 1 on the host
       can list all mounts in all mount namespaces or that a container
       can list all mounts of its nested containers.

       Optionally pass a structure for NS_MNT_GET_INFO with
       NS_MNT_GET_{PREV,NEXT} to retrieve information about the mount
       namespace in one go.

  (1) and (2) can be implemented for other namespace types easily.

  Together with recent api additions this means one can iterate through
  all mounts in all mount namespaces without ever touching procfs.

  The commit message in 49224a345c ('Merge patch series "nsfs: iterate
  through mount namespaces"') contains example code how to do this"

* tag 'vfs-6.12.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  nsfs: iterate through mount namespaces
  file: add fput() cleanup helper
  fs: add put_mnt_ns() cleanup helper
  fs: allow mount namespace fd
2024-09-16 11:15:26 +02:00
Linus Torvalds
ee25861f26 vfs-6.12.fallocate
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Merge tag 'vfs-6.12.fallocate' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs fallocate updates from Christian Brauner:
 "This contains work to try and cleanup some the fallocate mode
  handling. Currently, it confusingly mixes operation modes and an
  optional flag.

  The work here tries to better define operation modes and optional
  flags allowing the core and filesystem code to use switch statements
  to switch on the operation mode"

* tag 'vfs-6.12.fallocate' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  xfs: refactor xfs_file_fallocate
  xfs: move the xfs_is_always_cow_inode check into xfs_alloc_file_space
  xfs: call xfs_flush_unmap_range from xfs_free_file_space
  fs: sort out the fallocate mode vs flag mess
  ext4: remove tracing for FALLOC_FL_NO_HIDE_STALE
  block: remove checks for FALLOC_FL_NO_HIDE_STALE
2024-09-16 09:34:08 +02:00
Linus Torvalds
3352633ce6 vfs-6.12.file
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Merge tag 'vfs-6.12.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs file updates from Christian Brauner:
 "This is the work to cleanup and shrink struct file significantly.

  Right now, (focusing on x86) struct file is 232 bytes. After this
  series struct file will be 184 bytes aka 3 cacheline and a spare 8
  bytes for future extensions at the end of the struct.

  With struct file being as ubiquitous as it is this should make a
  difference for file heavy workloads and allow further optimizations in
  the future.

   - struct fown_struct was embedded into struct file letting it take up
     32 bytes in total when really it shouldn't even be embedded in
     struct file in the first place. Instead, actual users of struct
     fown_struct now allocate the struct on demand. This frees up 24
     bytes.

   - Move struct file_ra_state into the union containg the cleanup hooks
     and move f_iocb_flags out of the union. This closes a 4 byte hole
     we created earlier and brings struct file to 192 bytes. Which means
     struct file is 3 cachelines and we managed to shrink it by 40
     bytes.

   - Reorder struct file so that nothing crosses a cacheline.

     I suspect that in the future we will end up reordering some members
     to mitigate false sharing issues or just because someone does
     actually provide really good perf data.

   - Shrinking struct file to 192 bytes is only part of the work.

     Files use a slab that is SLAB_TYPESAFE_BY_RCU and when a kmem cache
     is created with SLAB_TYPESAFE_BY_RCU the free pointer must be
     located outside of the object because the cache doesn't know what
     part of the memory can safely be overwritten as it may be needed to
     prevent object recycling.

     That has the consequence that SLAB_TYPESAFE_BY_RCU may end up
     adding a new cacheline.

     So this also contains work to add a new kmem_cache_create_rcu()
     function that allows the caller to specify an offset where the
     freelist pointer is supposed to be placed. Thus avoiding the
     implicit addition of a fourth cacheline.

   - And finally this removes the f_version member in struct file.

     The f_version member isn't particularly well-defined. It is mainly
     used as a cookie to detect concurrent seeks when iterating
     directories. But it is also abused by some subsystems for
     completely unrelated things.

     It is mostly a directory and filesystem specific thing that doesn't
     really need to live in struct file and with its wonky semantics it
     really lacks a specific function.

     For pipes, f_version is (ab)used to defer poll notifications until
     a write has happened. And struct pipe_inode_info is used by
     multiple struct files in their ->private_data so there's no chance
     of pushing that down into file->private_data without introducing
     another pointer indirection.

     But pipes don't rely on f_pos_lock so this adds a union into struct
     file encompassing f_pos_lock and a pipe specific f_pipe member that
     pipes can use. This union of course can be extended to other file
     types and is similar to what we do in struct inode already"

* tag 'vfs-6.12.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (26 commits)
  fs: remove f_version
  pipe: use f_pipe
  fs: add f_pipe
  ubifs: store cookie in private data
  ufs: store cookie in private data
  udf: store cookie in private data
  proc: store cookie in private data
  ocfs2: store cookie in private data
  input: remove f_version abuse
  ext4: store cookie in private data
  ext2: store cookie in private data
  affs: store cookie in private data
  fs: add generic_llseek_cookie()
  fs: use must_set_pos()
  fs: add must_set_pos()
  fs: add vfs_setpos_cookie()
  s390: remove unused f_version
  ceph: remove unused f_version
  adi: remove unused f_version
  mm: Removed @freeptr_offset to prevent doc warning
  ...
2024-09-16 09:14:02 +02:00
Linus Torvalds
2775df6e5e vfs-6.12.folio
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Merge tag 'vfs-6.12.folio' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs

Pull vfs folio updates from Christian Brauner:
 "This contains work to port write_begin and write_end to rely on folios
  for various filesystems.

  This converts ocfs2, vboxfs, orangefs, jffs2, hostfs, fuse, f2fs,
  ecryptfs, ntfs3, nilfs2, reiserfs, minixfs, qnx6, sysv, ufs, and
  squashfs.

  After this series lands a bunch of the filesystems in this list do not
  mention struct page anymore"

* tag 'vfs-6.12.folio' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs: (61 commits)
  Squashfs: Ensure all readahead pages have been used
  Squashfs: Rewrite and update squashfs_readahead_fragment() to not use page->index
  Squashfs: Update squashfs_readpage_block() to not use page->index
  Squashfs: Update squashfs_readahead() to not use page->index
  Squashfs: Update page_actor to not use page->index
  jffs2: Use a folio in jffs2_garbage_collect_dnode()
  jffs2: Convert jffs2_do_readpage_nolock to take a folio
  buffer: Convert __block_write_begin() to take a folio
  ocfs2: Convert ocfs2_write_zero_page to use a folio
  fs: Convert aops->write_begin to take a folio
  fs: Convert aops->write_end to take a folio
  vboxsf: Use a folio in vboxsf_write_end()
  orangefs: Convert orangefs_write_begin() to use a folio
  orangefs: Convert orangefs_write_end() to use a folio
  jffs2: Convert jffs2_write_begin() to use a folio
  jffs2: Convert jffs2_write_end() to use a folio
  hostfs: Convert hostfs_write_end() to use a folio
  fuse: Convert fuse_write_begin() to use a folio
  fuse: Convert fuse_write_end() to use a folio
  f2fs: Convert f2fs_write_begin() to use a folio
  ...
2024-09-16 08:54:30 +02:00
Linus Torvalds
8f72c31f45 vfs-6.12.misc
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Merge tag 'vfs-6.12.misc' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs

Pull misc vfs updates from Christian Brauner:
 "This contains the usual pile of misc updates:

  Features:

   - Add F_CREATED_QUERY fcntl() that allows userspace to query whether
     a file was actually created. Often userspace wants to know whether
     an O_CREATE request did actually create a file without using
     O_EXCL. The current logic is that to first attempts to open the
     file without O_CREAT | O_EXCL and if ENOENT is returned userspace
     tries again with both flags. If that succeeds all is well. If it
     now reports EEXIST it retries.

     That works fairly well but some corner cases make this more
     involved. If this operates on a dangling symlink the first openat()
     without O_CREAT | O_EXCL will return ENOENT but the second openat()
     with O_CREAT | O_EXCL will fail with EEXIST.

     The reason is that openat() without O_CREAT | O_EXCL follows the
     symlink while O_CREAT | O_EXCL doesn't for security reasons. So
     it's not something we can really change unless we add an explicit
     opt-in via O_FOLLOW which seems really ugly.

     All available workarounds are really nasty (fanotify, bpf lsm etc)
     so add a simple fcntl().

   - Try an opportunistic lookup for O_CREAT. Today, when opening a file
     we'll typically do a fast lookup, but if O_CREAT is set, the kernel
     always takes the exclusive inode lock. This was likely done with
     the expectation that O_CREAT means that we always expect to do the
     create, but that's often not the case. Many programs set O_CREAT
     even in scenarios where the file already exists (see related
     F_CREATED_QUERY patch motivation above).

     The series contained in the pr rearranges the pathwalk-for-open
     code to also attempt a fast_lookup in certain O_CREAT cases. If a
     positive dentry is found, the inode_lock can be avoided altogether
     and it can stay in rcuwalk mode for the last step_into.

   - Expose the 64 bit mount id via name_to_handle_at()

     Now that we provide a unique 64-bit mount ID interface in statx(2),
     we can now provide a race-free way for name_to_handle_at(2) to
     provide a file handle and corresponding mount without needing to
     worry about racing with /proc/mountinfo parsing or having to open a
     file just to do statx(2).

     While this is not necessary if you are using AT_EMPTY_PATH and
     don't care about an extra statx(2) call, users that pass full paths
     into name_to_handle_at(2) need to know which mount the file handle
     comes from (to make sure they don't try to open_by_handle_at a file
     handle from a different filesystem) and switching to AT_EMPTY_PATH
     would require allocating a file for every name_to_handle_at(2) call

   - Add a per dentry expire timeout to autofs

     There are two fairly well known automounter map formats, the autofs
     format and the amd format (more or less System V and Berkley).

     Some time ago Linux autofs added an amd map format parser that
     implemented a fair amount of the amd functionality. This was done
     within the autofs infrastructure and some functionality wasn't
     implemented because it either didn't make sense or required extra
     kernel changes. The idea was to restrict changes to be within the
     existing autofs functionality as much as possible and leave changes
     with a wider scope to be considered later.

     One of these changes is implementing the amd options:
      1) "unmount", expire this mount according to a timeout (same as
         the current autofs default).
      2) "nounmount", don't expire this mount (same as setting the
         autofs timeout to 0 except only for this specific mount) .
      3) "utimeout=<seconds>", expire this mount using the specified
         timeout (again same as setting the autofs timeout but only for
         this mount)

     To implement these options per-dentry expire timeouts need to be
     implemented for autofs indirect mounts. This is because all map
     keys (mounts) for autofs indirect mounts use an expire timeout
     stored in the autofs mount super block info. structure and all
     indirect mounts use the same expire timeout.

  Fixes:

   - Fix missing fput for FSCONFIG_SET_FD in autofs

   - Use param->file for FSCONFIG_SET_FD in coda

   - Delete the 'fs/netfs' proc subtreee when netfs module exits

   - Make sure that struct uid_gid_map fits into a single cacheline

   - Don't flush in-flight wb switches for superblocks without cgroup
     writeback

   - Correcting the idmapping mount example in the idmapping
     documentation

   - Fix a race between evice_inodes() and find_inode() and iput()

   - Refine the show_inode_state() macro definition in writeback code

   - Prevent dump_mapping() from accessing invalid dentry.d_name.name

   - Show actual source for debugfs in /proc/mounts

   - Annotate data-race of busy_poll_usecs in eventpoll

   - Don't WARN for racy path_noexec check in exec code

   - Handle OOM on mnt_warn_timestamp_expiry()

   - Fix some spelling in the iomap design documentation

   - Fix typo in procfs comment

   - Fix typo in fs/namespace.c comment

  Cleanups:

   - Add the VFS git tree to the MAINTAINERS file

   - Move FMODE_UNSIGNED_OFFSET to fop_flags freeing up another f_mode
     bit in struct file bringing us to 5 free f_mode bits

   - Remove the __I_DIO_WAKEUP bit from i_state flags as we can simplify
     the wait mechanism

   - Remove the unused path_put_init() helper

   - Replace a __u32 with u32 for s_fsnotify_mask as __u32 is uapi
     specific

   - Replace the unsigned long i_state member with a u32 i_state member
     in struct inode freeing up 4 bytes in struct inode. Instead of
     using the bit based wait apis we're now using the var event apis
     and using the individual bytes of the i_state member to wait on
     state changes

   - Explain how per-syscall AT_* flags should be allocated

   - Use in_group_or_capable() helper to simplify the posix acl mode
     update code

   - Switch to LIST_HEAD() in fsync_buffers_list() to simplify the code

   - Removed comment about d_rcu_to_refcount() as that function doesn't
     exist anymore

   - Add kernel documentation for lookup_fast()

   - Don't re-zero evenpoll fields

   - Remove outdated comment after close_fd()

   - Fix imprecise wording in comment about the pipe filesystem

   - Drop GFP_NOFAIL mode from alloc_page_buffers

   - Missing blank line warnings and struct declaration improved in
     file_table

   - Annotate struct poll_list with __counted_by()

   - Remove the unused read parameter in percpu-rwsem

   - Remove linux/prefetch.h include from direct-io code

   - Use kmemdup_array instead of kmemdup for multiple allocation in
     mnt_idmapping code

   - Remove unused mnt_cursor_del() declaration

  Performance tweaks:

   - Dodge smp_mb in break_lease and break_deleg in the common case

   - Only read fops once in fops_{get,put}()

   - Use RCU in ilookup()

   - Elide smp_mb in iversion handling in the common case

   - Drop one lock trip in evict()"

* tag 'vfs-6.12.misc' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs: (58 commits)
  uidgid: make sure we fit into one cacheline
  proc: Fix typo in the comment
  fs/pipe: Correct imprecise wording in comment
  fhandle: expose u64 mount id to name_to_handle_at(2)
  uapi: explain how per-syscall AT_* flags should be allocated
  fs: drop GFP_NOFAIL mode from alloc_page_buffers
  writeback: Refine the show_inode_state() macro definition
  fs/inode: Prevent dump_mapping() accessing invalid dentry.d_name.name
  mnt_idmapping: Use kmemdup_array instead of kmemdup for multiple allocation
  netfs: Delete subtree of 'fs/netfs' when netfs module exits
  fs: use LIST_HEAD() to simplify code
  inode: make i_state a u32
  inode: port __I_LRU_ISOLATING to var event
  vfs: fix race between evice_inodes() and find_inode()&iput()
  inode: port __I_NEW to var event
  inode: port __I_SYNC to var event
  fs: reorder i_state bits
  fs: add i_state helpers
  MAINTAINERS: add the VFS git tree
  fs: s/__u32/u32/ for s_fsnotify_mask
  ...
2024-09-16 08:35:09 +02:00
Linus Torvalds
d22300518d Thermal control updates for 6.12-rc1
- Update some thermal drivers to eliminate thermal_zone_get_trip()
    calls from them and get rid of that function (Rafael Wysocki).
 
  - Update the thermal sysfs code to store trip point attributes in trip
    descriptors and get to trip points via attribute pointers (Rafael
    Wysocki).
 
  - Move the computation of the low and high boundaries for
    thermal_zone_set_trips() to __thermal_zone_device_update() (Daniel
    Lezcano).
 
  - Introduce a debugfs-based facility for thermal core testing (Rafael
    Wysocki).
 
  - Replace the thermal zone .bind() and .unbind() callbacks for binding
    cooling devices to thermal zones with one .should_bind() callback
    used for deciding whether or not a given cooling devices should be
    bound to a given trip point in a given thermal zone (Rafael Wysocki).
 
  - Eliminate code that has no more users after the other changes, drop
    some redundant checks from the thermal core and clean it up (Rafael
    Wysocki).
 
  - Fix rounding of delay jiffies in the thermal core (Rafael Wysocki).
 
  - Refuse to accept trip point temperature or hysteresis that would lead
    to an invalid threshold value when setting them via sysfs (Rafael
    Wysocki).
 
  - Adjust states of all uninitialized instances in the .manage()
    callback of the Bang-bang thermal governor (Rafael Wysocki).
 
  - Drop a couple of redundant checks along with the code depending on
    them from the thermal core (Rafael Wysocki).
 
  - Rearrange the thermal core to avoid redundant checks and simplify
    control flow in a couple of code paths (Rafael Wysocki).
 
  - 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 the error code path in the probe functions in the brcmstb
    driver with the helo of dev_err_probe() (Yan Zhen).
 
  - Make imx_sc_thermal use dev_err_probe() (Alexander Stein).
 
  - Remove trailing space after \n newline in the Renesas driver (Colin
    Ian King).
 
  - Add DT binding compatible string for the SA8255p to the tsens thermal
    driver (Nikunj Kela).
 
  - Use the devm_clk_get_enabled() helpers to simplify the init routine
    in the sprd thermal 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 from the ti-soc-thermal driver's header
    file as the functions in question were removed previously (Zhang
    Zekun).
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Merge tag 'thermal-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control updates from Rafael Wysocki:
 "These mostly continue to rework the thermal core and the thermal zone
  driver interface to make the code more straightforward and reduce
  bloat

  The most significant piece of this work is a change of the code
  related to binding cooling devices to thermal zones which, among other
  things, replaces two previously existing thermal zone operations with
  one allowing driver implementations to be much simpler

  There is also a new thermal core testing module allowing mock thermal
  zones to be created and controlled via debugfs in order to exercise
  the thermal core functionality. It is expected to be used for
  implementing thermal core self tests in the future

  Apart from the above, there are assorted thermal driver updates

  Specifics:

   - Update some thermal drivers to eliminate thermal_zone_get_trip()
     calls from them and get rid of that function (Rafael Wysocki)

   - Update the thermal sysfs code to store trip point attributes in
     trip descriptors and get to trip points via attribute pointers
     (Rafael Wysocki)

   - Move the computation of the low and high boundaries for
     thermal_zone_set_trips() to __thermal_zone_device_update() (Daniel
     Lezcano)

   - Introduce a debugfs-based facility for thermal core testing (Rafael
     Wysocki)

   - Replace the thermal zone .bind() and .unbind() callbacks for
     binding cooling devices to thermal zones with one .should_bind()
     callback used for deciding whether or not a given cooling devices
     should be bound to a given trip point in a given thermal zone
     (Rafael Wysocki)

   - Eliminate code that has no more users after the other changes, drop
     some redundant checks from the thermal core and clean it up (Rafael
     Wysocki)

   - Fix rounding of delay jiffies in the thermal core (Rafael Wysocki)

   - Refuse to accept trip point temperature or hysteresis that would
     lead to an invalid threshold value when setting them via sysfs
     (Rafael Wysocki)

   - Adjust states of all uninitialized instances in the .manage()
     callback of the Bang-bang thermal governor (Rafael Wysocki)

   - Drop a couple of redundant checks along with the code depending on
     them from the thermal core (Rafael Wysocki)

   - Rearrange the thermal core to avoid redundant checks and simplify
     control flow in a couple of code paths (Rafael Wysocki)

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

   - Make imx_sc_thermal use dev_err_probe() (Alexander Stein)

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

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

   - Use the devm_clk_get_enabled() helpers to simplify the init routine
     in the sprd thermal 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 from the ti-soc-thermal driver's header
     file as the functions in question were removed previously (Zhang
     Zekun)"

* tag 'thermal-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (48 commits)
  thermal: core: Drop thermal_zone_device_is_enabled()
  thermal: core: Check passive delay in monitor_thermal_zone()
  thermal: core: Drop dead code from monitor_thermal_zone()
  thermal: core: Drop redundant lockdep_assert_held()
  thermal: gov_bang_bang: Adjust states of all uninitialized instances
  thermal: sysfs: Add sanity checks for trip temperature and hysteresis
  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
  thermal: core: Drop tz field from struct thermal_instance
  thermal: core: Drop redundant checks from thermal_bind_cdev_to_trip()
  thermal: core: Rename cdev-to-thermal-zone bind/unbind functions
  ...
2024-09-16 08:05:54 +02:00
Linus Torvalds
02824a5fd1 Power management updates for 6.12-rc1
- Remove LATENCY_MULTIPLIER from cpufreq (Qais Yousef).
 
  - Add support for Granite Rapids and Sierra Forest in OOB mode to the
    intel_pstate cpufreq driver (Srinivas Pandruvada).
 
  - Add basic support for CPU capacity scaling on x86 and make the
    intel_pstate driver set asymmetric CPU capacity on hybrid systems
    without SMT (Rafael Wysocki).
 
  - Add missing MODULE_DESCRIPTION() macros to the powerpc cpufreq
    driver (Jeff Johnson).
 
  - Several OF related cleanups in cpufreq drivers (Rob Herring).
 
  - Enable COMPILE_TEST for ARM drivers (Rob Herrring).
 
  - Introduce quirks for syscon failures and use socinfo to get revision
    for TI cpufreq driver (Dhruva Gole, Nishanth Menon).
 
  - Minor cleanups in amd-pstate driver (Anastasia Belova, Dhananjay
    Ugwekar).
 
  - Minor cleanups for loongson, cpufreq-dt and powernv cpufreq drivers
    (Danila Tikhonov, Huacai Chen, and Liu Jing).
 
  - Make amd-pstate validate return of any attempt to update EPP limits,
    which fixes the masking hardware problems (Mario Limonciello).
 
  - Move the calculation of the AMD boost numerator outside of amd-pstate,
    correcting acpi-cpufreq on systems with preferred cores (Mario
    Limonciello).
 
  - Harden preferred core detection in amd-pstate to avoid potential
    false positives (Mario Limonciello).
 
  - Add extra unit test coverage for mode state machine (Mario
    Limonciello).
 
  - Fix an "Uninitialized variables" issue in amd-pstste (Qianqiang Liu).
 
  - Add Granite Rapids Xeon support to intel_idle (Artem Bityutskiy).
 
  - Disable promotion to C1E on Jasper Lake and Elkhart Lake in
    intel_idle (Kai-Heng Feng).
 
  - Use scoped device node handling to fix missing of_node_put() and
    simplify walking OF children in the riscv-sbi cpuidle driver (Krzysztof
    Kozlowski).
 
  - Remove dead code from cpuidle_enter_state() (Dhruva Gole).
 
  - Change an error pointer to NULL to fix error handling in the
    intel_rapl power capping driver (Dan Carpenter).
 
  - Fix off by one in get_rpi() in the intel_rapl power capping
    driver (Dan Carpenter).
 
  - Add support for ArrowLake-U to the intel_rapl power capping
    driver (Sumeet Pawnikar).
 
  - Fix the energy-pkg event for AMD CPUs in the intel_rapl power capping
    driver (Dhananjay Ugwekar).
 
  - Add support for AMD family 1Ah processors to the intel_rapl power
    capping driver (Dhananjay Ugwekar).
 
  - Remove unused stub for saveable_highmem_page() and remove deprecated
    macros from power management documentation (Andy Shevchenko).
 
  - Use ysfs_emit() and sysfs_emit_at() in "show" functions in the PM
    sysfs interface (Xueqin Luo).
 
  - Update the maintainers information for the operating-points-v2-ti-cpu DT
    binding (Dhruva Gole).
 
  - Drop unnecessary of_match_ptr() from ti-opp-supply (Rob Herring).
 
  - Add missing MODULE_DESCRIPTION() macros to devfreq governors (Jeff
    Johnson).
 
  - Use devm_clk_get_enabled() in the exynos-bus devfreq driver (Anand
    Moon).
 
  - Use of_property_present() instead of of_get_property() in the imx-bus
    devfreq driver (Rob Herring).
 
  - Update directory handling and installation process in the pm-graph
    Makefile and add .gitignore to ignore sleepgraph.py artifacts to
    pm-graph (Amit Vadhavana, Yo-Jung Lin).
 
  - Make cpupower display residency value in idle-info (Aboorva
    Devarajan).
 
  - Add missing powercap_set_enabled() stub function to cpupower (John
    B. Wyatt IV).
 
  - Add SWIG support to cpupower (John B. Wyatt IV).
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Merge tag 'pm-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "By the number of new lines of code, the most visible change here is
  the addition of hybrid CPU capacity scaling support to the
  intel_pstate driver. Next are the amd-pstate driver changes related to
  the calculation of the AMD boost numerator and preferred core
  detection.

  As far as new hardware support is concerned, the intel_idle driver
  will now handle Granite Rapids Xeon processors natively, the
  intel_rapl power capping driver will recognize family 1Ah of AMD
  processors and Intel ArrowLake-U chipos, and intel_pstate will handle
  Granite Rapids and Sierra Forest chips in the out-of-band (OOB) mode.

  Apart from the above, there is a usual collection of assorted fixes
  and code cleanups in many places and there are tooling updates.

  Specifics:

   - Remove LATENCY_MULTIPLIER from cpufreq (Qais Yousef)

   - Add support for Granite Rapids and Sierra Forest in OOB mode to the
     intel_pstate cpufreq driver (Srinivas Pandruvada)

   - Add basic support for CPU capacity scaling on x86 and make the
     intel_pstate driver set asymmetric CPU capacity on hybrid systems
     without SMT (Rafael Wysocki)

   - Add missing MODULE_DESCRIPTION() macros to the powerpc cpufreq
     driver (Jeff Johnson)

   - Several OF related cleanups in cpufreq drivers (Rob Herring)

   - Enable COMPILE_TEST for ARM drivers (Rob Herrring)

   - Introduce quirks for syscon failures and use socinfo to get
     revision for TI cpufreq driver (Dhruva Gole, Nishanth Menon)

   - Minor cleanups in amd-pstate driver (Anastasia Belova, Dhananjay
     Ugwekar)

   - Minor cleanups for loongson, cpufreq-dt and powernv cpufreq drivers
     (Danila Tikhonov, Huacai Chen, and Liu Jing)

   - Make amd-pstate validate return of any attempt to update EPP
     limits, which fixes the masking hardware problems (Mario
     Limonciello)

   - Move the calculation of the AMD boost numerator outside of
     amd-pstate, correcting acpi-cpufreq on systems with preferred cores
     (Mario Limonciello)

   - Harden preferred core detection in amd-pstate to avoid potential
     false positives (Mario Limonciello)

   - Add extra unit test coverage for mode state machine (Mario
     Limonciello)

   - Fix an "Uninitialized variables" issue in amd-pstste (Qianqiang
     Liu)

   - Add Granite Rapids Xeon support to intel_idle (Artem Bityutskiy)

   - Disable promotion to C1E on Jasper Lake and Elkhart Lake in
     intel_idle (Kai-Heng Feng)

   - Use scoped device node handling to fix missing of_node_put() and
     simplify walking OF children in the riscv-sbi cpuidle driver
     (Krzysztof Kozlowski)

   - Remove dead code from cpuidle_enter_state() (Dhruva Gole)

   - Change an error pointer to NULL to fix error handling in the
     intel_rapl power capping driver (Dan Carpenter)

   - Fix off by one in get_rpi() in the intel_rapl power capping driver
     (Dan Carpenter)

   - Add support for ArrowLake-U to the intel_rapl power capping driver
     (Sumeet Pawnikar)

   - Fix the energy-pkg event for AMD CPUs in the intel_rapl power
     capping driver (Dhananjay Ugwekar)

   - Add support for AMD family 1Ah processors to the intel_rapl power
     capping driver (Dhananjay Ugwekar)

   - Remove unused stub for saveable_highmem_page() and remove
     deprecated macros from power management documentation (Andy
     Shevchenko)

   - Use ysfs_emit() and sysfs_emit_at() in "show" functions in the PM
     sysfs interface (Xueqin Luo)

   - Update the maintainers information for the
     operating-points-v2-ti-cpu DT binding (Dhruva Gole)

   - Drop unnecessary of_match_ptr() from ti-opp-supply (Rob Herring)

   - Add missing MODULE_DESCRIPTION() macros to devfreq governors (Jeff
     Johnson)

   - Use devm_clk_get_enabled() in the exynos-bus devfreq driver (Anand
     Moon)

   - Use of_property_present() instead of of_get_property() in the
     imx-bus devfreq driver (Rob Herring)

   - Update directory handling and installation process in the pm-graph
     Makefile and add .gitignore to ignore sleepgraph.py artifacts to
     pm-graph (Amit Vadhavana, Yo-Jung Lin)

   - Make cpupower display residency value in idle-info (Aboorva
     Devarajan)

   - Add missing powercap_set_enabled() stub function to cpupower (John
     B. Wyatt IV)

   - Add SWIG support to cpupower (John B. Wyatt IV)"

* tag 'pm-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (62 commits)
  cpufreq/amd-pstate-ut: Fix an "Uninitialized variables" issue
  cpufreq/amd-pstate-ut: Add test case for mode switches
  cpufreq/amd-pstate: Export symbols for changing modes
  amd-pstate: Add missing documentation for `amd_pstate_prefcore_ranking`
  cpufreq: amd-pstate: Add documentation for `amd_pstate_hw_prefcore`
  cpufreq: amd-pstate: Optimize amd_pstate_update_limits()
  cpufreq: amd-pstate: Merge amd_pstate_highest_perf_set() into amd_get_boost_ratio_numerator()
  x86/amd: Detect preferred cores in amd_get_boost_ratio_numerator()
  x86/amd: Move amd_get_highest_perf() out of amd-pstate
  ACPI: CPPC: Adjust debug messages in amd_set_max_freq_ratio() to warn
  ACPI: CPPC: Drop check for non zero perf ratio
  x86/amd: Rename amd_get_highest_perf() to amd_get_boost_ratio_numerator()
  ACPI: CPPC: Adjust return code for inline functions in !CONFIG_ACPI_CPPC_LIB
  x86/amd: Move amd_get_highest_perf() from amd.c to cppc.c
  PM: hibernate: Remove unused stub for saveable_highmem_page()
  pm:cpupower: Add error warning when SWIG is not installed
  MAINTAINERS: Add Maintainers for SWIG Python bindings
  pm:cpupower: Include test_raw_pylibcpupower.py
  pm:cpupower: Add SWIG bindings files for libcpupower
  pm:cpupower: Add missing powercap_set_enabled() stub function
  ...
2024-09-16 07:47:50 +02:00
Linus Torvalds
11b3125073 ACPI updates for 6.12-rc1
- Check return value in acpi_db_convert_to_package() (Pei Xiao).
 
  - Detect FACS and allow setting the waking vector on reduced-hardware
    ACPI platforms (Jiaqing Zhao).
 
  - Allow ACPICA to represent semaphores as integers (Adrien Destugues).
 
  - Complete CXL 3.0 CXIMS structures support in ACPICA (Zhang Rui).
 
  - Make ACPICA support SPCR version 4 and add RISC-V SBI Subtype to
    DBG2 (Sia Jee Heng).
 
  - Implement the Dword_PCC Resource Descriptor Macro in ACPICA (Jose
    Marinho).
 
  - Correct the typo in struct acpi_mpam_msc_node member (Punit Agrawal).
 
  - Implement ACPI_WARNING_ONCE() and ACPI_ERROR_ONCE() and use them to
    prevent a Stall() violation warning from being printed every time
    this takes place (Vasily Khoruzhick).
 
  - Allow PCC Data Type in MCTP resource (Adam Young).
 
  - Fix memory leaks on acpi_ps_get_next_namepath()
    and acpi_ps_get_next_field() failures  (Armin Wolf).
 
  - Add support for supressing leading zeros in hex strings when
    converting them to integers and update integer-to-hex-string
    conversions in ACPICA (Armin Wolf).
 
  - Add support for Windows 11 22H2 _OSI string (Armin Wolf).
 
  - Avoid warning for Dump Functions in ACPICA (Adam Lackorzynski).
 
  - Add extended linear address mode to HMAT MSCIS in ACPICA (Dave
    Jiang).
 
  - Handle empty connection_node in iasl (Aleksandrs Vinarskis).
 
  - Allow for more flexibility in _DSM args (Saket Dumbre).
 
  - Setup for ACPICA release 20240827 (Saket Dumbre).
 
  - Add ACPI device enumeration support for interrupt controller probing
    including taking dependencies into account (Sunil V L).
 
  - Implement ACPI-based interrupt controller probing on RISC-V (Sunil V L).
 
  - Add ACPI support for AIA in riscv-intc and add ACPI support to
    riscv-imsic, riscv-aplic, and sifive-plic (Sunil V L).
 
  - Do not release locks during operation region accesses in the ACPI EC
    driver (Rafael Wysocki).
 
  - Fix up the _STR handling in the ACPI device object sysfs interface,
    make it represent the device object attributes as an attribute group
    and make it rely on driver core functionality for sysfs attrubute
    management (Thomas Weißschuh).
 
  - Extend error messages printed to the kernel log when acpi_evaluate_dsm()
    fails to include revision and function number (David Wang).
 
  - Add a new AMDI0015 platform device ID to the ACPi APD driver for AMD
    SoCs (Shyam Sundar S K).
 
  - Use the driver core for the async probing management in the ACPI
    battery driver (Thomas Weißschuh).
 
  - Remove redundant initalizations of a local variable to NULL from the
    ACPI battery driver (Ilpo Järvinen).
 
  - Remove unneeded check in tps68470_pmic_opregion_probe() (Aleksandr
    Mishin).
 
  - Add support for setting the EPP register through the ACPI CPPC sysfs
    interface if it is in FFH (Mario Limonciello).
 
  - Fix MASK_VAL() usage in the ACPI CPPC library (Clément Léger).
 
  - Reduce the log level of a per-CPU message about idle states in the
    ACPI processor driver (Li RongQing).
 
  - Fix crash in exit_round_robin() in the ACPI processor aggregator
    device (PAD) driver (Seiji Nishikawa).
 
  - Add force_vendor quirk for Panasonic Toughbook CF-18 in the ACPI
    backlight driver (Hans de Goede).
 
  - Make the DMI checks related to backlight handling on Lenovo Yoga
    Tab 3 X90F less strict (Hans de Goede).
 
  - Enforce native backlight handling on Apple MacbookPro9,2 (Esther
    Shimanovich).
 
  - Add IRQ override quirks for Asus Vivobook Go E1404GAB and MECHREV
    GM7XG0M, and refine the TongFang GMxXGxx quirk (Li Chen, Tamim Khan,
    Werner Sembach).
 
  - Quirk ASUS ROG M16 to default to S3 sleep (Luke D. Jones).
 
  - Define and use symbols for device and class name lengths in the ACPI
    bus type code and make the code use strscpy() instead of strcpy() in
    several places (Muhammad Qasim Abdul Majeed).
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Merge tag 'acpi-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These update the ACPICA code in the kernel to upstream version
  20240827, add support for ACPI-based enumeration of interrupt
  controllers on RISC-V along with some related irqchip updates, clean
  up the ACPI device object sysfs interface, add some quirks for
  backlight handling and IRQ overrides, fix assorted issues and clean up
  code.

  Specifics:

   - Check return value in acpi_db_convert_to_package() (Pei Xiao)

   - Detect FACS and allow setting the waking vector on reduced-hardware
     ACPI platforms (Jiaqing Zhao)

   - Allow ACPICA to represent semaphores as integers (Adrien Destugues)

   - Complete CXL 3.0 CXIMS structures support in ACPICA (Zhang Rui)

   - Make ACPICA support SPCR version 4 and add RISC-V SBI Subtype to
     DBG2 (Sia Jee Heng)

   - Implement the Dword_PCC Resource Descriptor Macro in ACPICA (Jose
     Marinho)

   - Correct the typo in struct acpi_mpam_msc_node member (Punit
     Agrawal)

   - Implement ACPI_WARNING_ONCE() and ACPI_ERROR_ONCE() and use them to
     prevent a Stall() violation warning from being printed every time
     this takes place (Vasily Khoruzhick)

   - Allow PCC Data Type in MCTP resource (Adam Young)

   - Fix memory leaks on acpi_ps_get_next_namepath() and
     acpi_ps_get_next_field() failures (Armin Wolf)

   - Add support for supressing leading zeros in hex strings when
     converting them to integers and update integer-to-hex-string
     conversions in ACPICA (Armin Wolf)

   - Add support for Windows 11 22H2 _OSI string (Armin Wolf)

   - Avoid warning for Dump Functions in ACPICA (Adam Lackorzynski)

   - Add extended linear address mode to HMAT MSCIS in ACPICA (Dave
     Jiang)

   - Handle empty connection_node in iasl (Aleksandrs Vinarskis)

   - Allow for more flexibility in _DSM args (Saket Dumbre)

   - Setup for ACPICA release 20240827 (Saket Dumbre)

   - Add ACPI device enumeration support for interrupt controller
     probing including taking dependencies into account (Sunil V L)

   - Implement ACPI-based interrupt controller probing on RISC-V
     (Sunil V L)

   - Add ACPI support for AIA in riscv-intc and add ACPI support to
     riscv-imsic, riscv-aplic, and sifive-plic (Sunil V L)

   - Do not release locks during operation region accesses in the ACPI
     EC driver (Rafael Wysocki)

   - Fix up the _STR handling in the ACPI device object sysfs interface,
     make it represent the device object attributes as an attribute
     group and make it rely on driver core functionality for sysfs
     attrubute management (Thomas Weißschuh)

   - Extend error messages printed to the kernel log when
     acpi_evaluate_dsm() fails to include revision and function number
     (David Wang)

   - Add a new AMDI0015 platform device ID to the ACPi APD driver for
     AMD SoCs (Shyam Sundar S K)

   - Use the driver core for the async probing management in the ACPI
     battery driver (Thomas Weißschuh)

   - Remove redundant initalizations of a local variable to NULL from
     the ACPI battery driver (Ilpo Järvinen)

   - Remove unneeded check in tps68470_pmic_opregion_probe() (Aleksandr
     Mishin)

   - Add support for setting the EPP register through the ACPI CPPC
     sysfs interface if it is in FFH (Mario Limonciello)

   - Fix MASK_VAL() usage in the ACPI CPPC library (Clément Léger)

   - Reduce the log level of a per-CPU message about idle states in the
     ACPI processor driver (Li RongQing)

   - Fix crash in exit_round_robin() in the ACPI processor aggregator
     device (PAD) driver (Seiji Nishikawa)

   - Add force_vendor quirk for Panasonic Toughbook CF-18 in the ACPI
     backlight driver (Hans de Goede)

   - Make the DMI checks related to backlight handling on Lenovo Yoga
     Tab 3 X90F less strict (Hans de Goede)

   - Enforce native backlight handling on Apple MacbookPro9,2 (Esther
     Shimanovich)

   - Add IRQ override quirks for Asus Vivobook Go E1404GAB and MECHREV
     GM7XG0M, and refine the TongFang GMxXGxx quirk (Li Chen, Tamim
     Khan, Werner Sembach)

   - Quirk ASUS ROG M16 to default to S3 sleep (Luke D. Jones)

   - Define and use symbols for device and class name lengths in the
     ACPI bus type code and make the code use strscpy() instead of
     strcpy() in several places (Muhammad Qasim Abdul Majeed)"

* tag 'acpi-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (70 commits)
  ACPI: resource: Add another DMI match for the TongFang GMxXGxx
  ACPI: CPPC: Add support for setting EPP register in FFH
  ACPI: PM: Quirk ASUS ROG M16 to default to S3 sleep
  ACPI: video: Add force_vendor quirk for Panasonic Toughbook CF-18
  ACPI: battery: use driver core managed async probing
  ACPI: button: Use strscpy() instead of strcpy()
  ACPI: resource: Skip IRQ override on Asus Vivobook Go E1404GAB
  ACPI: CPPC: Fix MASK_VAL() usage
  irqchip/sifive-plic: Add ACPI support
  ACPICA: Setup for ACPICA release 20240827
  ACPICA: Allow for more flexibility in _DSM args
  ACPICA: iasl: handle empty connection_node
  ACPICA: HMAT: Add extended linear address mode to MSCIS
  ACPICA: Avoid warning for Dump Functions
  ACPICA: Add support for Windows 11 22H2 _OSI string
  ACPICA: Update integer-to-hex-string conversions
  ACPICA: Add support for supressing leading zeros in hex strings
  ACPICA: Allow for supressing leading zeros when using acpi_ex_convert_to_ascii()
  ACPICA: Fix memory leak if acpi_ps_get_next_field() fails
  ACPICA: Fix memory leak if acpi_ps_get_next_namepath() fails
  ...
2024-09-16 07:41:48 +02:00
Linus Torvalds
114143a595 arm64 updates for 6.12
ACPI:
 * Enable PMCG erratum workaround for HiSilicon HIP10 and 11 platforms.
 * Ensure arm64-specific IORT header is covered by MAINTAINERS.
 
 CPU Errata:
 * Enable workaround for hardware access/dirty issue on Ampere-1A cores.
 
 Memory management:
 * Define PHYSMEM_END to fix a crash in the amdgpu driver.
 * Avoid tripping over invalid kernel mappings on the kexec() path.
 * Userspace support for the Permission Overlay Extension (POE) using
   protection keys.
 
 Perf and PMUs:
 * Add support for the "fixed instruction counter" extension in the CPU
   PMU architecture.
 * Extend and fix the event encodings for Apple's M1 CPU PMU.
 * Allow LSM hooks to decide on SPE permissions for physical profiling.
 * Add support for the CMN S3 and NI-700 PMUs.
 
 Confidential Computing:
 * Add support for booting an arm64 kernel as a protected guest under
   Android's "Protected KVM" (pKVM) hypervisor.
 
 Selftests:
 * Fix vector length issues in the SVE/SME sigreturn tests
 * Fix build warning in the ptrace tests.
 
 Timers:
 * Add support for PR_{G,S}ET_TSC so that 'rr' can deal with
   non-determinism arising from the architected counter.
 
 Miscellaneous:
 * Rework our IPI-based CPU stopping code to try NMIs if regular IPIs
   don't succeed.
 * Minor fixes and cleanups.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Will Deacon:
 "The highlights are support for Arm's "Permission Overlay Extension"
  using memory protection keys, support for running as a protected guest
  on Android as well as perf support for a bunch of new interconnect
  PMUs.

  Summary:

  ACPI:
   - Enable PMCG erratum workaround for HiSilicon HIP10 and 11
     platforms.
   - Ensure arm64-specific IORT header is covered by MAINTAINERS.

  CPU Errata:
   - Enable workaround for hardware access/dirty issue on Ampere-1A
     cores.

  Memory management:
   - Define PHYSMEM_END to fix a crash in the amdgpu driver.
   - Avoid tripping over invalid kernel mappings on the kexec() path.
   - Userspace support for the Permission Overlay Extension (POE) using
     protection keys.

  Perf and PMUs:
   - Add support for the "fixed instruction counter" extension in the
     CPU PMU architecture.
   - Extend and fix the event encodings for Apple's M1 CPU PMU.
   - Allow LSM hooks to decide on SPE permissions for physical
     profiling.
   - Add support for the CMN S3 and NI-700 PMUs.

  Confidential Computing:
   - Add support for booting an arm64 kernel as a protected guest under
     Android's "Protected KVM" (pKVM) hypervisor.

  Selftests:
   - Fix vector length issues in the SVE/SME sigreturn tests
   - Fix build warning in the ptrace tests.

  Timers:
   - Add support for PR_{G,S}ET_TSC so that 'rr' can deal with
     non-determinism arising from the architected counter.

  Miscellaneous:
   - Rework our IPI-based CPU stopping code to try NMIs if regular IPIs
     don't succeed.
   - Minor fixes and cleanups"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (94 commits)
  perf: arm-ni: Fix an NULL vs IS_ERR() bug
  arm64: hibernate: Fix warning for cast from restricted gfp_t
  arm64: esr: Define ESR_ELx_EC_* constants as UL
  arm64: pkeys: remove redundant WARN
  perf: arm_pmuv3: Use BR_RETIRED for HW branch event if enabled
  MAINTAINERS: List Arm interconnect PMUs as supported
  perf: Add driver for Arm NI-700 interconnect PMU
  dt-bindings/perf: Add Arm NI-700 PMU
  perf/arm-cmn: Improve format attr printing
  perf/arm-cmn: Clean up unnecessary NUMA_NO_NODE check
  arm64/mm: use lm_alias() with addresses passed to memblock_free()
  mm: arm64: document why pte is not advanced in contpte_ptep_set_access_flags()
  arm64: Expose the end of the linear map in PHYSMEM_END
  arm64: trans_pgd: mark PTEs entries as valid to avoid dead kexec()
  arm64/mm: Delete __init region from memblock.reserved
  perf/arm-cmn: Support CMN S3
  dt-bindings: perf: arm-cmn: Add CMN S3
  perf/arm-cmn: Refactor DTC PMU register access
  perf/arm-cmn: Make cycle counts less surprising
  perf/arm-cmn: Improve build-time assertion
  ...
2024-09-16 06:55:07 +02:00