1658 Commits

Author SHA1 Message Date
Linus Torvalds
e81dd54f62 Merge tag 'dmaengine-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine updates from Vinod Koul:
 "Core:
   - Add Frank Li as susbstem reviewer to help with reviews

  New Support:
   - Mediatek support for Dimensity 6300 and 9200 controller
   - Qualcomm Kaanapali and Glymur GPI DMA engine
   - Synopsis DW AXI Agilex5
   - Renesas RZ/V2N SoC
   - Atmel microchip lan9691-dma
   - Tegra ADMA tegra264

  Updates:
   - sg_nents_for_dma() helper use in subsystem
   - pm_runtime_mark_last_busy() redundant call update for subsystem
   - Residue support for xilinx AXIDMA driver
   - Intel Max SGL Size Support and capabilities for DSA3.0
   - AXI dma larger than 32bits address support"

* tag 'dmaengine-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (64 commits)
  dmaengine: add Frank Li as reviewer
  dt-bindings: dma: qcom,gpi: Update max interrupts lines to 16
  dmaengine: fsl-edma: don't explicitly disable clocks in .remove()
  dmaengine: xilinx: xdma: use sg_nents_for_dma() helper
  dmaengine: sh: use sg_nents_for_dma() helper
  dmaengine: sa11x0: use sg_nents_for_dma() helper
  dmaengine: qcom: bam_dma: use sg_nents_for_dma() helper
  dmaengine: qcom: adm: use sg_nents_for_dma() helper
  dmaengine: pxa-dma: use sg_nents_for_dma() helper
  dmaengine: lgm: use sg_nents_for_dma() helper
  dmaengine: k3dma: use sg_nents_for_dma() helper
  dmaengine: dw-axi-dmac: use sg_nents_for_dma() helper
  dmaengine: bcm2835-dma: use sg_nents_for_dma() helper
  dmaengine: axi-dmac: use sg_nents_for_dma() helper
  dmaengine: altera-msgdma: use sg_nents_for_dma() helper
  scatterlist: introduce sg_nents_for_dma() helper
  dmaengine: idxd: Add Max SGL Size Support for DSA3.0
  dmaengine: idxd: Expose DSA3.0 capabilities through sysfs
  dmaengine: sh: rz-dmac: Make channel irq local
  dmaengine: pl08x: Fix comment stating the difference between PL080 and PL081
  ...
2026-02-17 11:47:17 -08:00
Linus Torvalds
46a1daac56 Merge tag 'pinctrl-v7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
 "Core changes:

   - Drop the unused devm_pinctrl_unregister() function

   - Move pretended generic pin control functionality out of the core
     and into the Amlogic AM4 driver. We have something better coming
     (hopefully)

  New hardware support:

   - Spacemit K3 (RISC-V) pin control support

   - Atmel AT91 PIO4 (ARM32) SAMA7D65 pin control support

   - Exynos9610 (ARM64) pin control support

   - Qualcomm Mahua TLMM (ARM64) pin control support

   - Microchip Polarfire MSSIO (RISC-V) pin control support

   - Ocelot LAN9645XF (multiplatform) pin control support

  Improvements:

   - Using a few more guards for locking

   - Various nonurgent fixes and tweaks"

* tag 'pinctrl-v7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (73 commits)
  pinctrl: generic: move function to amlogic-am4 driver
  pinctrl: intel: Align Copyright note with corporate guidelines
  pinctrl: mediatek: remove unused drv_offset field
  pinctrl: canaan: k230: Fix NULL pointer dereference when parsing devicetree
  pinctrl: single: fix refcount leak in pcs_add_gpio_func()
  pinctrl: meson: amlogic-a4: Fix device node reference leak in bank helpers
  pinctrl: qcom: sm8250-lpass-lpi: Fix i2s2_data_groups definition
  pinctrl: core: Remove duplicate error messages
  pinctrl: core: Simplify devm_pinctrl_*()
  pinctrl: core: Remove unused devm_pinctrl_unregister()
  dt-bindings: pinctrl: spacemit: fix drive-strength check warning
  pinctrl: fix kismet issues with GENERIC_PINCTRL
  pinctrl: tangier: Join tng_pinctrl_probe() into its wrapper
  pinctrl: tangier: Remove duplicate error messages
  pinctrl: lynxpoint: Remove duplicate error messages
  pinctrl: cherryview: Remove duplicate error messages
  pinctrl: baytrail: Remove duplicate error messages
  pinctrl: intel: Remove duplicate error messages
  pinctrl: equilibrium: Fix device node reference leak in pinbank_init()
  dt-bindings: pinctrl: pinctrl-microchip-sgpio: add LAN969x
  ...
2026-02-16 09:35:24 -08:00
Linus Torvalds
f50822fd86 Merge tag 'platform-drivers-x86-v7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Ilpo Järvinen:
 "Highlights:

   - amd/pmf:
      - Avoid overwriting BIOS input values when events occur rapidly
      - Fix PMF driver issues related to S4 (in part on crypto/ccp side)
      - Add NPU metrics API (for accel side consumers)
      - Allow disabling Smart PC function through a module parameter

   - asus-wmi & HID/asus:
      - Unification of backlight control (replaces quirks)
      - Support multiple interfaces for controlling keyboard/RGB brightness
      - Simplify init sequence

   - hp-wmi:
      - Add manual fan control for Victus S models
      - Add fan mode keep-alive
      - Fix platform profile values for Omen 16-wf1xxx
      - Add EC offset to get the thermal profile

   - intel/pmc: Show substate residencies also for non-primary PMCs

   - intel/ISST:
      - Store and restore data for all domains
      - Write interface improvements

   - lenovo-wmi:
      - Support multiple Capability Data
      - Add HWMON reporting and tuning support

   - mellanox/mlx-platform: Add HI173 & HI174 support

   - surface/aggregator_registry: Add Surface Pro 11 (QCOM)

   - thinkpad_acpi: Add support for HW damage detection capability

   - uniwill: Implement cTGP setting

   - wmi:
      - Introduce marshalling support
      - Convert a few drivers to use the new buffer-based WMI API

   - tools/power/x86/intel-speed-select: Allow read operations for non-root

   - Miscellaneous cleanups / refactoring / improvements"

* tag 'platform-drivers-x86-v7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (68 commits)
  platform/x86: lenovo-wmi-{capdata,other}: Fix HWMON channel visibility
  platform/x86: hp-wmi: Add EC offsets to read Victus S thermal profile
  platform: mellanox: mlx-platform: Add support DGX flavor of next-generation 800GB/s ethernet switch.
  platform: mellanox: mlx-platform: Add support for new Nvidia DGX system based on class VMOD0010
  HID: asus: add support for the asus-wmi brightness handler
  platform/x86: asus-wmi: add keyboard brightness event handler
  platform/x86: asus-wmi: remove unused keyboard backlight quirk
  HID: asus: listen to the asus-wmi brightness device instead of creating one
  platform/x86: asus-wmi: Add support for multiple kbd led handlers
  HID: asus: early return for ROG devices
  HID: asus: move vendor initialization to probe
  HID: asus: fortify keyboard handshake
  HID: asus: use same report_id in response
  HID: asus: initialize additional endpoints only for certain devices
  HID: asus: simplify RGB init sequence
  platform/wmi: string-kunit: Add missing oversized string test case
  platform/x86/amd/pmf: Added a module parameter to disable the Smart PC function
  platform/x86/uniwill: Implement cTGP setting
  platform/x86: uniwill-laptop: Introduce device descriptor system
  platform/x86/amd: Use scope-based cleanup for wbrf_record()
  ...
2026-02-13 15:39:15 -08:00
Linus Torvalds
e812928be2 Merge tag 'cxl-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull CXL updates from Dave Jiang:

 - Introduce cxl_memdev_attach and pave way for soft reserved handling,
   type2 accelerator enabling, and LSA 2.0 enabling. All these series
   require the endpoint driver to settle before continuing the memdev
   driver probe.

 - Address CXL port error protocol handling and reporting.

   The large patch series was split into three parts. The first two
   parts are included here with the final part coming later.

   The first part consists of a series of code refactoring to PCI AER
   sub-system that addresses CXL and also CXL RAS code to prepare for
   port error handling.

   The second part refactors the CXL code to move management of
   component registers to cxl_port objects to allow all CXL AER errors
   to be handled through the cxl_port hierarchy.

 - Provide AMD Zen5 platform address translation for CXL using ACPI
   PRMT. This includes a conventions document to explain why this is
   needed and how it's implemented.

 - Misc CXL patches of fixes, cleanups, and updates. Including CXL
   address translation for unaligned MOD3 regions.

[ TLA service: CXL is "Compute Express Link" ]

* tag 'cxl-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (59 commits)
  cxl: Disable HPA/SPA translation handlers for Normalized Addressing
  cxl/region: Factor out code into cxl_region_setup_poison()
  cxl/atl: Lock decoders that need address translation
  cxl: Enable AMD Zen5 address translation using ACPI PRMT
  cxl/acpi: Prepare use of EFI runtime services
  cxl: Introduce callback for HPA address ranges translation
  cxl/region: Use region data to get the root decoder
  cxl/region: Add @hpa_range argument to function cxl_calc_interleave_pos()
  cxl/region: Separate region parameter setup and region construction
  cxl: Simplify cxl_root_ops allocation and handling
  cxl/region: Store HPA range in struct cxl_region
  cxl/region: Store root decoder in struct cxl_region
  cxl/region: Rename misleading variable name @hpa to @hpa_range
  Documentation/driver-api/cxl: ACPI PRM Address Translation Support and AMD Zen5 enablement
  cxl, doc: Moving conventions in separate files
  cxl, doc: Remove isonum.txt inclusion
  cxl/port: Unify endpoint and switch port lookup
  cxl/port: Move endpoint component register management to cxl_port
  cxl/port: Map Port RAS registers
  cxl/port: Move dport RAS setup to dport add time
  ...
2026-02-12 16:33:05 -08:00
Linus Torvalds
4cff5c05e0 Merge tag 'mm-stable-2026-02-11-19-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:

 - "powerpc/64s: do not re-activate batched TLB flush" makes
   arch_{enter|leave}_lazy_mmu_mode() nest properly (Alexander Gordeev)

   It adds a generic enter/leave layer and switches architectures to use
   it. Various hacks were removed in the process.

 - "zram: introduce compressed data writeback" implements data
   compression for zram writeback (Richard Chang and Sergey Senozhatsky)

 - "mm: folio_zero_user: clear page ranges" adds clearing of contiguous
   page ranges for hugepages. Large improvements during demand faulting
   are demonstrated (David Hildenbrand)

 - "memcg cleanups" tidies up some memcg code (Chen Ridong)

 - "mm/damon: introduce {,max_}nr_snapshots and tracepoint for damos
   stats" improves DAMOS stat's provided information, deterministic
   control, and readability (SeongJae Park)

 - "selftests/mm: hugetlb cgroup charging: robustness fixes" fixes a few
   issues in the hugetlb cgroup charging selftests (Li Wang)

 - "Fix va_high_addr_switch.sh test failure - again" addresses several
   issues in the va_high_addr_switch test (Chunyu Hu)

 - "mm/damon/tests/core-kunit: extend existing test scenarios" improves
   the KUnit test coverage for DAMON (Shu Anzai)

 - "mm/khugepaged: fix dirty page handling for MADV_COLLAPSE" fixes a
   glitch in khugepaged which was causing madvise(MADV_COLLAPSE) to
   transiently return -EAGAIN (Shivank Garg)

 - "arch, mm: consolidate hugetlb early reservation" reworks and
   consolidates a pile of straggly code related to reservation of
   hugetlb memory from bootmem and creation of CMA areas for hugetlb
   (Mike Rapoport)

 - "mm: clean up anon_vma implementation" cleans up the anon_vma
   implementation in various ways (Lorenzo Stoakes)

 - "tweaks for __alloc_pages_slowpath()" does a little streamlining of
   the page allocator's slowpath code (Vlastimil Babka)

 - "memcg: separate private and public ID namespaces" cleans up the
   memcg ID code and prevents the internal-only private IDs from being
   exposed to userspace (Shakeel Butt)

 - "mm: hugetlb: allocate frozen gigantic folio" cleans up the
   allocation of frozen folios and avoids some atomic refcount
   operations (Kefeng Wang)

 - "mm/damon: advance DAMOS-based LRU sorting" improves DAMOS's movement
   of memory betewwn the active and inactive LRUs and adds auto-tuning
   of the ratio-based quotas and of monitoring intervals (SeongJae Park)

 - "Support page table check on PowerPC" makes
   CONFIG_PAGE_TABLE_CHECK_ENFORCED work on powerpc (Andrew Donnellan)

 - "nodemask: align nodes_and{,not} with underlying bitmap ops" makes
   nodes_and() and nodes_andnot() propagate the return values from the
   underlying bit operations, enabling some cleanup in calling code
   (Yury Norov)

 - "mm/damon: hide kdamond and kdamond_lock from API callers" cleans up
   some DAMON internal interfaces (SeongJae Park)

 - "mm/khugepaged: cleanups and scan limit fix" does some cleanup work
   in khupaged and fixes a scan limit accounting issue (Shivank Garg)

 - "mm: balloon infrastructure cleanups" goes to town on the balloon
   infrastructure and its page migration function. Mainly cleanups, also
   some locking simplification (David Hildenbrand)

 - "mm/vmscan: add tracepoint and reason for kswapd_failures reset" adds
   additional tracepoints to the page reclaim code (Jiayuan Chen)

 - "Replace wq users and add WQ_PERCPU to alloc_workqueue() users" is
   part of Marco's kernel-wide migration from the legacy workqueue APIs
   over to the preferred unbound workqueues (Marco Crivellari)

 - "Various mm kselftests improvements/fixes" provides various unrelated
   improvements/fixes for the mm kselftests (Kevin Brodsky)

 - "mm: accelerate gigantic folio allocation" greatly speeds up gigantic
   folio allocation, mainly by avoiding unnecessary work in
   pfn_range_valid_contig() (Kefeng Wang)

 - "selftests/damon: improve leak detection and wss estimation
   reliability" improves the reliability of two of the DAMON selftests
   (SeongJae Park)

 - "mm/damon: cleanup kdamond, damon_call(), damos filter and
   DAMON_MIN_REGION" does some cleanup work in the core DAMON code
   (SeongJae Park)

 - "Docs/mm/damon: update intro, modules, maintainer profile, and misc"
   performs maintenance work on the DAMON documentation (SeongJae Park)

 - "mm: add and use vma_assert_stabilised() helper" refactors and cleans
   up the core VMA code. The main aim here is to be able to use the mmap
   write lock's lockdep state to perform various assertions regarding
   the locking which the VMA code requires (Lorenzo Stoakes)

 - "mm, swap: swap table phase II: unify swapin use" removes some old
   swap code (swap cache bypassing and swap synchronization) which
   wasn't working very well. Various other cleanups and simplifications
   were made. The end result is a 20% speedup in one benchmark (Kairui
   Song)

 - "enable PT_RECLAIM on more 64-bit architectures" makes PT_RECLAIM
   available on 64-bit alpha, loongarch, mips, parisc, and um. Various
   cleanups were performed along the way (Qi Zheng)

* tag 'mm-stable-2026-02-11-19-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (325 commits)
  mm/memory: handle non-split locks correctly in zap_empty_pte_table()
  mm: move pte table reclaim code to memory.c
  mm: make PT_RECLAIM depends on MMU_GATHER_RCU_TABLE_FREE
  mm: convert __HAVE_ARCH_TLB_REMOVE_TABLE to CONFIG_HAVE_ARCH_TLB_REMOVE_TABLE config
  um: mm: enable MMU_GATHER_RCU_TABLE_FREE
  parisc: mm: enable MMU_GATHER_RCU_TABLE_FREE
  mips: mm: enable MMU_GATHER_RCU_TABLE_FREE
  LoongArch: mm: enable MMU_GATHER_RCU_TABLE_FREE
  alpha: mm: enable MMU_GATHER_RCU_TABLE_FREE
  mm: change mm/pt_reclaim.c to use asm/tlb.h instead of asm-generic/tlb.h
  mm/damon/stat: remove __read_mostly from memory_idle_ms_percentiles
  zsmalloc: make common caches global
  mm: add SPDX id lines to some mm source files
  mm/zswap: use %pe to print error pointers
  mm/vmscan: use %pe to print error pointers
  mm/readahead: fix typo in comment
  mm: khugepaged: fix NR_FILE_PAGES and NR_SHMEM in collapse_file()
  mm: refactor vma_map_pages to use vm_insert_pages
  mm/damon: unify address range representation with damon_addr_range
  mm/cma: replace snprintf with strscpy in cma_new_area
  ...
2026-02-12 11:32:37 -08:00
Linus Torvalds
939faf71cf Merge tag 'drm-next-2026-02-11' of https://gitlab.freedesktop.org/drm/kernel
Pull drm updates from Dave Airlie:
 "Highlights:
   - amdgpu support for lots of new IP blocks which means newer GPUs
   - xe has a lot of SR-IOV and SVM improvements
   - lots of intel display refactoring across i915/xe
   - msm has more support for gen8 platforms
   - Given up on kgdb/kms integration, it's too hard on modern hw

  core:
   - drop kgdb support
   - replace system workqueue with percpu
   - account for property blobs in memcg
   - MAINTAINERS updates for xe + buddy

  rust:
   - Fix documentation for Registration constructors
   - Use pin_init::zeroed() for fops initialization
   - Annotate DRM helpers with __rust_helper
   - Improve safety documentation for gem::Object::new()
   - Update AlwaysRefCounted imports
   - mm: Prevent integer overflow in page_align()

  atomic:
   - add drm_device pointer to drm_private_obj
   - introduce gamma/degamma LUT size check

  buddy:
   - fix free_trees memory leak
   - prevent BUG_ON

  bridge:
   - introduce drm_bridge_unplug/enter/exit
   - add connector argument to .hpd_notify
   - lots of recounting conversions
   - convert rockchip inno hdmi to bridge
   - lontium-lt9611uxc: switch to HDMI audio helpers
   - dw-hdmi-qp: add support for HPD-less setups
   - Algoltek AG6311 support

  panels:
   - edp: CSW MNE007QB3-1, AUO B140HAN06.4, AUO B140QAX01.H
   - st75751: add SPI support
   - Sitronix ST7920, Samsung LTL106HL02
   - LG LH546WF1-ED01, HannStar HSD156J
   - BOE NV130WUM-T08
   - Innolux G150XGE-L05
   - Anbernic RG-DS

  dma-buf:
   - improve sg_table debugging
   - add tracepoints
   - call clear_page instead of memset
   - start to introduce cgroup memory accounting in heaps
   - remove sysfs stats

  dma-fence:
   - add new helpers

  dp:
   - mst: avoid oob access with vcpi=0

  hdmi:
   - limit infoframes exposure to userspace

  gem:
   - reduce page table overhead with THP
   - fix leak in drm_gem_get_unmapped_area

  gpuvm:
   - API sanitation for rust bindings

  sched:
   - introduce new helpers

  panic:
   - report invalid panic modes
   - add kunit tests

  i915/xe display:
   - Expose sharpness only if num_scalers is >= 2
   - Add initial Xe3P_LPD for NVL
   - BMG FBC support
   - Add MTL+ platforms to support dpll framework
   _ fix DIMM_S DRM decoding on ICL
   - Return to using AUX interrupts
   - PSR/Panel replay refactoring
   - use consolidation HDMI tables
   - Xe3_LPD CD2X dividier changes

  xe:
   - vfio: add vfio_pci for intel GPU
   - multi queue support
   - dynamic pagemaps and multi-device SVM
   - expose temp attribs in hwmon
   - NO_COMPRESSION bo flag
   - expose MERT OA unit
   - sysfs survivability refactor
   - SRIOV PF: add MERT support
   - enable SR-IOV VF migration
   - Enable I2C/NVM on Crescent Island
   - Xe3p page reclaimation support
   - introduce SRIOV scheduler groups
   - add SoC remappt support in system controller
   - insert compiler barriers in GuC code
   - define NVL GuC firmware
   - handle GT resume failure
   - fix drm scheduler layering violations
   - enable GSC loading and PXP for PTL
   - disable GuC Power DCC strategy on PTL
   - unregister drm device on probe error

  i915:
   - move to kernel standard fault injection
   - bump recommended GuC version for DG2 and MTL

  amdgpu:
   - SMUIO 15.x, PSP 15.x support
   - IH 6.1.1/7.1 support
   - MMHUB 3.4/4.2 support
   - GC 11.5.4/12.1 support
   - SDMA 6.1.4/7.1/7.11.4 support
   - JPEG 5.3 support
   - UserQ updates
   - GC 9 gfx queue reset support
   - TTM memory ops parallelization
   - convert legacy logging to new helpers
   - DC analog fixes

  amdkfd:
   - GC 11.5.4/12.1 suppport
   - SDMA 6.1.4/7.1 support
   - per context support
   - increase kfd process hash table
   - Reserved SDMA rework

  radeon:
   - convert legacy logging to new helpers
   - use devm for i2c adapters

  msm:
   - GPU
      - Document a612/RGMU dt bindings
      - UBWC 6.0 support (for A840 / Kaanapali)
      - a225 support
   - DPU:
      - Switch to use virtual planes by default
      - Fix DSI CMD panels on DPU 3.x
      - Rewrite format handling to remove intermediate representation
      - Fix watchdog on DPU 8.x+
      - Fix TE / Vsync source setting on DPU 8.x+
      - Add 3D_Mux on SC7280
      - Kaanapali platform support
      - Fix UBWC register programming
      - Make RM reserve DSPP-enabled mixers for CRTCs with LMs
      - Gamma correction support
   - DP:
      - Enable support for eDP 1.4+ link rate tables
      - Fix MDSS1 DP indices on SA8775P, making them to work
      - Fix msm_dp_ctrl_config_msa() to work with LLVM 20
   - DSI:
      - Document QCS8300 as compatible with SA8775P
      - Kaanapali platform support
   - DSI PHY:
      - switch to divider_determine_rate()
   - MDP5:
      - Drop support for MSM8998, SDM660 and SDM630 (switch over to DPU)
   -  MDSS:
      - Kaanapali platform support
      - Fixed UBWC register programming

  nova-core:
   - Prepare for Turing support. This includes parsing and handling
     Turing-specific firmware headers and sections as well as a Turing
     Falcon HAL implementation
   - Get rid of the Result<impl PinInit<T, E>> anti-pattern
   - Relocate initializer-specific code into the appropriate initializer
   - Use CStr::from_bytes_until_nul() to remove custom helpers
   - Improve handling of unexpected firmware values
   - Clean up redundant debug prints
   - Replace c_str!() with native Rust C-string literals
   - Update nova-core task list

  nova:
   - Align GEM object size to system page size

  tyr:
   - Use generated uAPI bindings for GpuInfo
   - Replace manual sleeps with read_poll_timeout()
   - Replace c_str!() with native Rust C-string literals
   - Suppress warnings for unread fields
   - Fix incorrect register name in print statement

  nouveau:
   - fix big page table support races in PTE management
   - improve reclocking on tegra 186+

  amdxdna:
   - fix suspend race conditions
   - improve handling of zero tail pointers
   - fix cu_idx overwritten during command setup
   - enable hardware context priority
   - remove NPU2 support
   - update message buffer allocation requirements
   - update firmware version check

  ast:
   - support imported cursor buffers
   - big endian fixes

  etnaviv:
   - add PPU flop reset support

  imagination:
   - add AM62P support
   - introduce hw version checks

  ivpu:
   - implement warm boot flow

  panfrost:
   - add bo sync ioctl
   - add GPU_PM_RT support for RZ/G3E SoC

  panthor:
   - add bo sync ioctl
   - enable timestamp propagation
   - scheduler robustness improvements
   - VM termination fixes
   - huge page support

  rockchip:
   - RK3368 HDMI Support
   - get rid of atomic_check fixups
   - RK3506 support
   - RK3576/RK3588 improved HPD handling

  rz-du:
   - RZ/V2H(P) MIPI-DSI Support

  v3d:
   - fix DMA segment size
   - convert to new logging helpers

  mediatek:
   - move DP training to hotplug thread
   - convert logging to new helpers
   - add support for HS speed DSI
   - Genio 510/700/1200-EVK, Radxa NIO-12L HDMI support

  atmel-hlcdc:
   - switch to drmm resource
   - support nomodeset
   - use newer helpers

  hisilicon:
   - fix various DP bugs

  renesas:
   - fix kernel panic on reboot

  exynos:
   - fix vidi_connection_ioctl using wrong device
   - fix vidi_connection deref user ptr
   - fix concurrency regression with vidi_context

  vkms:
   - add configfs support for display configuration

* tag 'drm-next-2026-02-11' of https://gitlab.freedesktop.org/drm/kernel: (1610 commits)
  drm/xe/pm: Disable D3Cold for BMG only on specific platforms
  drm/xe: Fix kerneldoc for xe_tlb_inval_job_alloc_dep
  drm/xe: Fix kerneldoc for xe_gt_tlb_inval_init_early
  drm/xe: Fix kerneldoc for xe_migrate_exec_queue
  drm/xe/query: Fix topology query pointer advance
  drm/xe/guc: Fix kernel-doc warning in GuC scheduler ABI header
  drm/xe/guc: Fix CFI violation in debugfs access.
  accel/amdxdna: Move RPM resume into job run function
  accel/amdxdna: Fix incorrect DPM level after suspend/resume
  nouveau/vmm: start tracking if the LPT PTE is valid. (v6)
  nouveau/vmm: increase size of vmm pte tracker struct to u32 (v2)
  nouveau/vmm: rewrite pte tracker using a struct and bitfields.
  accel/amdxdna: Fix incorrect error code returned for failed chain command
  accel/amdxdna: Remove hardware context status
  drm/bridge: imx8qxp-pixel-combiner: Fix bailout for imx8qxp_pc_bridge_probe()
  drm/panel: ilitek-ili9882t: Remove duplicate initializers in tianma_il79900a_dsc
  drm/i915/display: fix the pixel normalization handling for xe3p_lpd
  drm/exynos: vidi: use ctx->lock to protect struct vidi_context member variables related to memory alloc/free
  drm/exynos: vidi: fix to avoid directly dereferencing user pointer
  drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl()
  ...
2026-02-11 12:55:44 -08:00
Linus Torvalds
b7ef56a076 Merge tag 'media/v7.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:

 - Add support for GMSL1 and GMSL‑coax modules (PCI mgb4)

 - Add driver for TI VIP

 - AV1 – first kernel support (pixel‑format, decoder, transcoder)

 - Three new camera‑sensor drivers (os05b10, s5k3m5, s5kjn1)

 - Synopsys CSI‑2 receiver driver

 - Verisilicon & rkvdec – major fixes and enhancements

 - IPU6 (and 7) fixes and preparation for metadata

 - omap3isp: v4l2-compliance updates

 - Fix DVB streaming, drop wait_prepare/finish (dvb/vb2)

* tag 'media/v7.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (307 commits)
  media: uvcvideo: Pass allocation size directly to uvc_alloc_urb_buffer
  media: uvcvideo: Fix allocation for small frame sizes
  media: uvcvideo: Return queued buffers on start_streaming() failure
  media: uvcvideo: Create an ID namespace for streaming output terminals
  media: rkvdec: Add HEVC support for the VDPU383 variant
  media: rkvdec: Add HEVC support for the VDPU381 variant
  media: rkvdec: Add H264 support for the VDPU383 variant
  media: rkvdec: Add H264 support for the VDPU381 variant
  media: rkvdec: Disable multicore support
  media: rkvdec: Enable all clocks without naming them
  media: rkvdec: Support per-variant interrupt handler
  media: rkvdec: Add RCB and SRAM support
  media: rkvdec: Add variant specific coded formats list
  media: rkvdec: Move hevc functions to common file
  media: rkvdec: Move h264 functions to common file
  media: rkvdec: Use structs to represent the HW RPS
  media: rkvdec: Move cabac tables to their own source file
  media: rkvdec: Switch to using structs instead of writel
  media: visl: Add HEVC short and long term RPS sets
  media: v4l2-ctrls: Add hevc_ext_sps_[ls]t_rps controls
  ...
2026-02-11 12:20:25 -08:00
Linus Torvalds
d701782152 Merge tag 'gpio-updates-for-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
 "There are two new drivers and some changes to GPIO core but mostly
  just GPIO driver updates across a wide array of files, adding support
  for new models as well as various refactoring changes. Nothing
  controversial and everything has spent a good measure of time in
  linux-next.

  GPIOLIB core:
   - shrink the GPIO bus driver stub code
   - rework software node support for "undefined" software nodes
   - provide and use devm_fwnode_gpiod_get_optional()
   - only compile the OF quirk for MT2701 when needed

  New drivers:
   - add the GPIO driver for ROHM bd72720
   - add the gpio-line-mux driver providing 1-to-many mapping for a
     single real GPIO

  Driver changes:
   - refactor gpio-pca9570: use lock guard, add missing headers, use
     devres consistently
   - add support for a new model (G7 Aspeed sgpiom) to the aspeed-sgpio
     driver along with some prerequisite refactoring
   - use device_get_match_data() where applicable and save some lines
   - add support for more models to gpio-cadence
   - add the compatible property to reset-gpio and use it in shared GPIO
     management
   - drop unnecessary use of irqd_get_trigger_type() in gpio-max77759
   - add support for a new variant to gpio-pca953x
   - extend build coverage with COMPILE_TEST for more drivers
   - constify configfs structures in gpio-sim and gpio-virtuser
   - add support for the K3 SoC to gpio-spacemit
   - implement the missing .get_direction() callback in gpio-max77620
   - add support for Tegra264 to gpio-tegra186
   - drop unneeded MODULE_ALIAS() from gpio-menz127

  DT bindings:
   - document support for the opencores GPIO controller in gpio-mmio
   - document new variants for gpio-pca953x

  Documentation:
   - extensively describe interrupt source detection for gpio-pca953x
     and add more models to the list of supported variants"

* tag 'gpio-updates-for-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (59 commits)
  gpio: tegra186: Add support for Tegra264
  dt-bindings: gpio: Add Tegra264 support
  gpio: spacemit-k1: Use PDR for pin direction, not SDR/CDR
  gpio: max77620: Implement .get_direction() callback
  gpio: aspeed-sgpio: Support G7 Aspeed sgpiom controller
  dt-bindings: gpio: aspeed,sgpio: Support ast2700
  gpio: aspeed-sgpio: Convert IRQ functions to use llops callbacks
  gpio: aspeed-sgpio: Create llops to handle hardware access
  gpio: aspeed-sgpio: Remove unused bank name field
  gpio: aspeed-sgpio: Change the macro to support deferred probe
  regulator: bd71815: switch to devm_fwnode_gpiod_get_optional
  gpiolib: introduce devm_fwnode_gpiod_get_optional() wrapper
  gpio: mmio: Add compatible for opencores GPIO
  dt-bindings: gpio-mmio: Correct opencores GPIO
  gpio: pca9570: use lock guards
  gpio: pca9570: Don't use "proxy" headers
  gpio: pca9570: Use devm_mutex_init() for mutex initialization
  MAINTAINERS: Add ROHM BD72720 PMIC
  power: supply: bd71828-power: Support ROHM BD72720
  power: supply: bd71828: Support wider register addresses
  ...
2026-02-11 10:53:39 -08:00
Linus Torvalds
bdbddf72a2 Merge tag 'soc-drivers-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC driver updates from Arnd Bergmann:
 "There are are a number of to firmware drivers, in particular the TEE
  subsystem:

   - a bus callback for TEE firmware that device drivers can register to

   - sysfs support for tee firmware information

   - minor updates to platform specific TEE drivers for AMD, NXP,
     Qualcomm and the generic optee driver

   - ARM SCMI firmware refactoring to improve the protocol discover
     among other fixes and cleanups

   - ARM FF-A firmware interoperability improvements

  The reset controller and memory controller subsystems gain support for
  additional hardware platforms from Mediatek, Renesas, NXP, Canaan and
  SpacemiT.

  Most of the other changes are for random drivers/soc code. Among a
  number of cleanups and newly added hardware support, including:

   - Mediatek MT8196 DVFS power management and mailbox support

   - Qualcomm SCM firmware and MDT loader refactoring, as part of the
     new Glymur platform support.

   - NXP i.MX9 System Manager firmware support for accessing the syslog

   - Minor updates for TI, Renesas, Samsung, Apple, Marvell and AMD
     SoCs"

* tag 'soc-drivers-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (171 commits)
  bus: fsl-mc: fix an error handling in fsl_mc_device_add()
  reset: spacemit: Add SpacemiT K3 reset driver
  reset: spacemit: Extract common K1 reset code
  reset: Create subdirectory for SpacemiT drivers
  dt-bindings: soc: spacemit: Add K3 reset support and IDs
  reset: canaan: k230: drop OF dependency and enable by default
  reset: rzg2l-usbphy-ctrl: Add suspend/resume support
  reset: rzg2l-usbphy-ctrl: Propagate the return value of regmap_field_update_bits()
  reset: gpio: check the return value of gpiod_set_value_cansleep()
  reset: imx8mp-audiomix: Support i.MX8ULP SIM LPAV
  reset: imx8mp-audiomix: Extend the driver usage
  reset: imx8mp-audiomix: Switch to using regmap API
  reset: imx8mp-audiomix: Drop unneeded macros
  soc: fsl: qe: qe_ports_ic: Consolidate chained IRQ handler install/remove
  soc: mediatek: mtk-cmdq: Add mminfra_offset adjustment for DRAM addresses
  soc: mediatek: mtk-cmdq: Extend cmdq_pkt_write API for SoCs without subsys ID
  soc: mediatek: mtk-cmdq: Add pa_base parsing for hardware without subsys ID support
  soc: mediatek: mtk-cmdq: Add cmdq_get_mbox_priv() in cmdq_pkt_create()
  mailbox: mtk-cmdq: Add driver data to support for MT8196
  mailbox: mtk-cmdq: Add mminfra_offset configuration for DRAM transaction
  ...
2026-02-10 20:45:30 -08:00
Linus Torvalds
72c395024d Merge tag 'docs-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux
Pull documentation updates from Jonathan Corbet:
 "A slightly calmer cycle for docs this time around, though there is
  still a fair amount going on, including:

   - Some signs of life on the long-moribund Japanese translation

   - Documentation on policies around the use of generative tools for
     patch submissions, and a separate document intended for consumption
     by generative tools

   - The completion of the move of the documentation tools to
     tools/docs. For now we're leaving a /scripts/kernel-doc symlink
     behind to avoid breaking scripts

   - Ongoing build-system work includes the incorporation of
     documentation in Python code, better support for documenting
     variables, and lots of improvements and fixes

   - Automatic linking of man-page references -- cat(1), for example --
     to the online pages in the HTML build

  ...and the usual array of typo fixes and such"

* tag 'docs-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux: (107 commits)
  doc: development-process: add notice on testing
  tools: sphinx-build-wrapper: improve its help message
  docs: sphinx-build-wrapper: allow -v override -q
  docs: kdoc: Fix pdfdocs build for tools
  docs: ja_JP: process: translate 'Obtain a current source tree'
  docs: fix 're-use' -> 'reuse' in documentation
  docs: ioctl-number: fix a typo in ioctl-number.rst
  docs: filesystems: ensure proc pid substitutable is complete
  docs: automarkup.py: Skip common English words as C identifiers
  Documentation: use a source-read extension for the index link boilerplate
  docs: parse_features: make documentation more consistent
  docs: add parse_features module documentation
  docs: jobserver: do some documentation improvements
  docs: add jobserver module documentation
  docs: kabi: helpers: add documentation for each "enum" value
  docs: kabi: helpers: add helper for debug bits 7 and 8
  docs: kabi: system_symbols: end docstring phrases with a dot
  docs: python: abi_regex: do some improvements at documentation
  docs: python: abi_parser: do some improvements at documentation
  docs: add kabi modules documentation
  ...
2026-02-09 20:53:18 -08:00
Linus Torvalds
0506158ac7 Merge tag 'thermal-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
 "These add support for "slow" (long-term trend) workload type hints to
  the Intel int340x thermal driver and selftests (and enable it for
  Panther Lake), add support for MT8196 along with DT bindings and for
  MT7987 to the Mediatek LVTS thermal driver, add support for RZ/T2H and
  RZ/N2H along with DT bindings to the Renesas rzg3e thermal driver, add
  support for the Panther Lake, Wildcat Lake and Nova Lake processors to
  the intel_tcc_cooling driver, fix bugs, make some cosmetic changes
  including code cleanups and library function substitutions, and update
  documentation.

  Specifics:

   - Add Panther Lake, Wildcat Lake and Nova Lake processor IDs to the
     list of supported processors in the intel_tcc_cooling thermal
     driver (Srinivas Pandruvada)

   - Drop unnecessary explicit driver data clearing on removal from the
     intel_pch_thermal driver (Kaushlendra Kumar)

   - Add support for "slow" workload type hints to the int340x
     processor_thermal driver and enable it on the Panther Lake platform
     (Srinivas Pandruvada)

   - Use sysfs_emit{_at}() in sysfs show functions in Intel thermal
     drivers (Thorsten Blum)

   - Update the x86_pkg_temp_thermal driver to handle
     THERMAL_TEMP_INVALID that can be passed to it via sysfs as expected
     (Rafael Wysocki)

   - Drop a redundant local variable from the intel_tcc_cooling thermal
     driver and fix a kerneldoc comment typo in the TCC library (Sumeet
     Pawnikar)

   - Fix CFLAGS and LDFLAGS in the pkg-config libthermal template
     (Romain Gantois)

   - Support multiple temp to raw conversion functions in the Mediatek
     LVTS thermal driver and add MT8196 and MT6991 support to it (Laura
     Nao)

   - Add Mediatek LVTS driver support for MT7987 (Frank Wunderlich)

   - Use the existing HZ_PER_MHZ macro on STM32 (Andy Shevchenko)

   - Use the existing clamp() macro on BCM2835 (Thorsten Blum)

   - Make the reset line optional in order to support new Renesas SoCs
     where it is not available and add support for RZ/T2H and RZ/N2H to
     the rzg3e thermal driver (Cosmin Tanislav)

   - Document RZ/V2N TSU in the r9a09g047-tsu DT bindings (Ovidiu
     Panait)

   - Fix all kernel-doc warnings in the internal thermal core header
     file (Randy Dunlap)

   - Fix a device node reference leak in thermal_of_cm_lookup() (Felix
     Gu)

   - Replace some old-style library function calls with ones that are
     currently recommended in several places in the thermal core and
     debugfs code (Sumeet Pawnikar, Thorsten Blum)

* tag 'thermal-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (34 commits)
  drivers: thermal: intel: tcc_cooling: Drop redundant local variable
  thermal/of: Fix reference leak in thermal_of_cm_lookup()
  thermal: core: thermal_core.h: fix all kernel-doc warnings
  thermal: intel: x86_pkg_temp_thermal: Handle invalid temperature
  thermal: renesas: rzg3e: add support for RZ/T2H and RZ/N2H
  dt-bindings: thermal: r9a09g047-tsu: document RZ/T2H and RZ/N2H
  thermal: renesas: rzg3e: make calibration value retrieval per-chip
  thermal: renesas: rzg3e: make min and max temperature per-chip
  thermal: renesas: rzg3e: make reset optional
  dt-bindings: thermal: r9a09g047-tsu: Document RZ/V2N TSU
  thermal/drivers/broadcom: Use clamp to simplify bcm2835_thermal_temp2adc
  thermal/drivers/stm32: Use predefined HZ_PER_MHZ instead of a custom one
  thermal/drivers/mediatek/lvts_thermal: Add mt7987 support
  dt-bindings: thermal: mediatek: Add LVTS thermal controller definition for MT7987
  dt-bindings: nvmem: mediatek: efuse: Add support for MT8196
  thermal/drivers/mediatek/lvts_thermal: Add MT8196 support
  thermal/drivers/mediatek/lvts: Support MSR offset for 16-bit calibration data
  thermal/drivers/mediatek/lvts: Add support for ATP mode
  thermal/drivers/mediatek/lvts: Add lvts_temp_to_raw variant
  thermal/drivers/mediatek/lvts: Add platform ops to support alternative conversion logic
  ...
2026-02-09 19:33:44 -08:00
Rafael J. Wysocki
7c8b81f594 Merge branch 'acpi-driver'
Merge updates of drivers handling devices defined in the ACPI
specification and other generic devices with ACPI interfaces for
6.20-rc1/7.0-rc1:

 - Add a piece of documentation explaining why binding drivers directly
   to ACPI device objects is not a good idea in general and why it is
   desirable to convert drivers doing so into proper platform drivers
   that use struct platform_driver for device binding (Rafael Wysocki)

 - Convert multiple "core ACPI" drivers, including the NFIT ACPI device
   driver, the generic ACPI button drivers, the generic ACPI thermal
   zone driver, the ACPI hardware event device (HED) driver, the ACPI EC
   driver, the ACPI SMBUS HC driver, the ACPI Smart Battery Subsystem
   (SBS) driver, and the ACPI backlight (video) driver to proper platform
   drivers that use struct platform_driver for device binding (Rafael
   Wysocki)

 - Use acpi_get_local_u64_address() in the ACPI backlight (video) driver
   to evaluate _ADR instead of evaluating that object directly (Andy
   Shevchenko)

* acpi-driver: (25 commits)
  ACPI: video: simplify code with acpi_get_local_u64_address()
  ACPI: scan: Clean up after recent changes
  ACPI: scan: Use acpi_setup_gpe_for_wake() for buttons
  ACPI: PM: Let acpi_dev_pm_attach() skip devices without ACPI PM
  ACPI: Documentation: driver-api: Disapprove of using ACPI drivers
  ACPI: video: Convert the driver to a platform one
  ACPI: video: Adjust event notification routine
  ACPI: scan: Register platform devices for backlight device objects
  ACPI: SBS: Convert the driver to a platform one
  ACPI: SMBUS HC: Convert the driver to a platform one
  ACPI: EC: Convert the driver to a platform one
  ACPI: EC: Register a platform device for ECDT EC
  ACPI: HED: Convert the driver to a platform one
  ACPI: thermal: Rework system suspend and resume handling
  ACPI: thermal: Convert the driver to a platform one
  ACPI: thermal: Adjust event notification routine
  ACPI: scan: Register platform devices for thermal zones
  ACPI: scan: Do not mark button ACPI devices as wakeup-capable
  ACPI: scan: Do not bind ACPI drivers to fixed event buttons
  ACPI: tiny-power-button: Convert the driver to a platform one
  ...
2026-02-05 14:47:50 +01:00
Dave Jiang
63fbf275fa Merge branch 'for-7.0/cxl-prm-translation' into cxl-for-next
Add support for normalized CXL address translation through ACPI PRM method
to support AMD Zen5 platforms. Including a conventions doc that explains
how the translation is implemented and for future implementations that
need such setup to comply with the current implementation method.

cxl: Disable HPA/SPA translation handlers for Normalized Addressing
cxl/region: Factor out code into cxl_region_setup_poison()
cxl/atl: Lock decoders that need address translation
cxl: Enable AMD Zen5 address translation using ACPI PRMT
cxl/acpi: Prepare use of EFI runtime services
cxl: Introduce callback for HPA address ranges translation
cxl/region: Use region data to get the root decoder
cxl/region: Add @hpa_range argument to function cxl_calc_interleave_pos()
cxl/region: Separate region parameter setup and region construction
cxl: Simplify cxl_root_ops allocation and handling
cxl/region: Store HPA range in struct cxl_region
cxl/region: Store root decoder in struct cxl_region
cxl/region: Rename misleading variable name @hpa to @hpa_range
Documentation/driver-api/cxl: ACPI PRM Address Translation Support and AMD Zen5 enablement
cxl, doc: Moving conventions in separate files
cxl, doc: Remove isonum.txt inclusion
2026-02-04 10:53:33 -07:00
Robert Richter
0692afe940 Documentation/driver-api/cxl: ACPI PRM Address Translation Support and AMD Zen5 enablement
This adds a convention document for the following patch series:

 cxl: ACPI PRM Address Translation Support and AMD Zen5 enablement

Version 7 and later:

 https://lore.kernel.org/linux-cxl/20251114213931.30754-1-rrichter@amd.com/

Link: https://lore.kernel.org/linux-cxl/20251114213931.30754-1-rrichter@amd.com/
Reviewed-by: Gregory Price <gourry@gourry.net>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Robert Richter <rrichter@amd.com>
Link: https://patch.msgid.link/20260203173604.1440334-3-rrichter@amd.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2026-02-03 10:51:20 -07:00
Robert Richter
e6efbd2995 cxl, doc: Moving conventions in separate files
Moving conventions in separate files.

Cc: Jonathan Corbet <corbet@lwn.net>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Signed-off-by: Robert Richter <rrichter@amd.com>
Link: https://patch.msgid.link/20260203173604.1440334-2-rrichter@amd.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2026-02-03 10:51:20 -07:00
Robert Richter
72971184a1 cxl, doc: Remove isonum.txt inclusion
This patch removes the line to include:: <isonum.txt>. From Jon:

"This include has been cargo-culted around the docs...the only real
use of it is to write |copy| rather than ©, but these docs don't even
do that. It can be taken out."

Cc: Jonathan Corbet <corbet@lwn.net>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Signed-off-by: Robert Richter <rrichter@amd.com>
Link: https://patch.msgid.link/20260203173604.1440334-1-rrichter@amd.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2026-02-03 10:51:20 -07:00
Andy Shevchenko
17926aa1b6 pinctrl: core: Remove unused devm_pinctrl_unregister()
There are no users, drop it for good.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
2026-02-03 01:18:18 +01:00
Rhys Tumelty
78a00cac1e docs: fix 're-use' -> 'reuse' in documentation
Signed-off-by: Rhys Tumelty <rhys@tumelty.co.uk>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260128220233.179439-1-rhys@tumelty.co.uk>
2026-02-02 09:54:15 -07:00
Dave Airlie
6704d98a4f BackMerge tag 'v6.19-rc7' into drm-next
Linux 6.19-rc7

This is needed for msm and rust trees.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2026-01-28 12:44:28 +10:00
Mike Rapoport (Microsoft)
9fac145b6d mm, arch: consolidate hugetlb CMA reservation
Every architecture that supports hugetlb_cma command line parameter
reserves CMA areas for hugetlb during setup_arch().

This obfuscates the ordering of hugetlb CMA initialization with respect to
the rest initialization of the core MM.

Introduce arch_hugetlb_cma_order() callback to allow architectures report
the desired order-per-bit of CMA areas and provide a week implementation
of arch_hugetlb_cma_order() for architectures that don't support hugetlb
with CMA.

Use this callback in hugetlb_cma_reserve() instead if passing the order as
parameter and call hugetlb_cma_reserve() from mm_core_init_early() rather
than have it spread over architecture specific code.

Link: https://lkml.kernel.org/r/20260111082105.290734-28-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Alex Shi <alexs@kernel.org>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: "Borislav Petkov (AMD)" <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Guo Ren <guoren@kernel.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Klara Modin <klarasmodin@gmail.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Magnus Lindholm <linmag7@gmail.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Pratyush Yadav <pratyush@kernel.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: "Ritesh Harjani (IBM)" <ritesh.list@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vineet Gupta <vgupta@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-01-26 20:02:19 -08:00
Jani Nikula
a592a36e49 Documentation: use a source-read extension for the index link boilerplate
The root document usually has a special :ref:`genindex` link to the
generated index. This is also the case for Documentation/index.rst. The
other index.rst files deeper in the directory hierarchy usually don't.

For SPHINXDIRS builds, the root document isn't Documentation/index.rst,
but some other index.rst in the hierarchy. Currently they have a
".. only::" block to add the index link when doing SPHINXDIRS html
builds.

This is obviously very tedious and repetitive. The link is also added to
all index.rst files in the hierarchy for SPHINXDIRS builds, not just the
root document.

Put the boilerplate in a sphinx-includes/subproject-index.rst file, and
include it at the end of the root document for subproject builds in an
ad-hoc source-read extension defined in conf.py.

For now, keep having the boilerplate in translations, because this
approach currently doesn't cover translated index link headers.

Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Tested-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[jc: did s/doctree/kern_doc_dir/ ]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260123143149.2024303-1-jani.nikula@intel.com>
2026-01-23 11:59:34 -07:00
Gregory Price
7362facf6e Documentation/driver-api/cxl: device hotplug section
Describe cxl memory device hotplug implications, in particular how the
platform CEDT CFMWS must be described to support successful hot-add of
memory devices.

Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Signed-off-by: Gregory Price <gourry@gourry.net>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Alejandro Lucero Palau <alucerop@amd.com>
Link: https://patch.msgid.link/20251219170538.1675743-3-gourry@gourry.net
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2026-01-22 16:58:13 -07:00
Gregory Price
2489d83c22 Documentation/driver-api/cxl: BIOS/EFI expectation update
Add a snippet about what Linux expects BIOS/EFI to do (and not
to do) to the BIOS/EFI section.

Suggested-by: Alejandro Lucero Palau <alucerop@amd.com>
Signed-off-by: Gregory Price <gourry@gourry.net>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Alejandro Lucero Palau <alucerop@amd.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Link: https://patch.msgid.link/20251219170538.1675743-2-gourry@gourry.net
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2026-01-22 16:58:13 -07:00
Armin Wolf
b990a06f7e platform/wmi: Add helper functions for WMI string conversions
WMI strings are encoded using UTF16-LE characters, forcing WMI drivers
to manually convert them to/from standard UTF8 strings. Add a two
helper functions for those tasks.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20260116204116.4030-4-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-01-20 15:47:51 +02:00
T.J. Mercier
ab4c3dcf9a dma-buf: Remove DMA-BUF sysfs stats
Commit bdb8d06dfe ("dmabuf: Add the capability to expose DMA-BUF stats
in sysfs") added dmabuf statistics to sysfs in 2021 under
CONFIG_DMABUF_SYSFS_STATS. After being used in production, performance
problems were discovered leading to its deprecation in 2022 in commit
e0a9f1fe20 ("dma-buf: deprecate DMABUF_SYSFS_STATS"). Some of the
problems with this interface were discussed in my LPC 2025 talk. [1][2]

Android was probably the last user of the interface, which has since
been migrated to use the dmabuf BPF iterator [3] to obtain the same
information more cheaply. As promised in that series, now that the
longterm stable 6.18 kernel has been released let's remove the sysfs
dmabuf statistics from the kernel.

[1] https://www.youtube.com/watch?v=D83qygudq9c
[2] https://lpc.events/event/19/contributions/2118/
[3] https://lore.kernel.org/all/20250522230429.941193-1-tjmercier@google.com/

Signed-off-by: T.J. Mercier <tjmercier@google.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patch.msgid.link/20260116190517.3268458-1-tjmercier@google.com
2026-01-19 19:10:01 +05:30
Danilo Krummrich
07265c326b driver-core: improve driver binding documentation
The driver binding documentation (still) mentions that "When a driver is
attached to a device, the device is inserted into the driver's list of
devices.".

While it is true that the driver-core keeps track of all the devices
that are attached to a driver, this is purely for internal purposes
(i.e. it is an implementation detail) and has no relevance for user
facing documentation.

In fact, it is even misleading, since it could be read as if it were
valid for driver implementations to keep track of all the devices bound
to it.

Instead, drivers operate on a per-device basis, with a separate
per-device instance created when the driver is bound to a device.

Hence, remove the mention of a driver's list of devices and instead add
some documentation of the relationship between drivers and devices.

Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260115215718.6405-1-dakr@kernel.org>
2026-01-16 11:14:36 -07:00
Rafael J. Wysocki
b8c8a8ea18 ACPI: Documentation: driver-api: Disapprove of using ACPI drivers
Sadly, there is quite a bit of technical debt related to the
kernel's ACPI support subsystem and one of the most significant
pieces of it is the existence and use of ACPI drivers represented
by struct acpi_driver objects.

Those drivers are bound directly to struct acpi_device objects, also
referred to as "ACPI device nodes", representing device objects in the
ACPI namespace defined as:

 A hierarchical tree structure in OS-controlled memory that contains
 named objects. These objects may be data objects, control method
 objects, bus/device package objects, and so on.

according to the ACPI specification [1].

The above definition implies, although rather indirectly, that the
objects in question don't really represent hardware.  They are just
"device package objects" containing some information on the devices
present in the given platform that is known to the platform firmware.

Although the platform firmware can be the only source of information on
some devices, the information provided by it alone may be insufficient
for device enumeration in general.  If that is the case, binding a
driver directly to a given ACPI device node clearly doesn't make sense.
If the device in question is enumerated through a hardware interface, it
will be represented by a device object matching that interface, like
a struct pci_dev, and the ACPI device node corresponding to it will be
treated as its "ACPI companions" whose role is to amend the "native"
enumeratiom mechanism.

For the sake of consistency and confusion avoidance, it is better to
treat ACPI device nodes in general as ACPI companions of other device
objects representing hardware.  In some cases though it appeared easier
to take a shortcut and use an ACPI driver binding directly to an ACPI
device node.  Moreover, there were corner cases in which that was the
only choice, but they all have been addressed now.

In all cases in which an ACPI driver might be used, the ACPI device
node it might bind to is an ACPI companion of another device object
representing a piece of hardware.  It is thus better to use a driver
binding to the latter than to use an ACPI driver and leave the other
device object alone, not just because doing so is more consistent and
less confusing, but also because using ACPI drivers may lead to
potential functional deficiencies, like possible ordering issues
related to power management.

Unfortunately, there are quite a few ACPI drivers in use and, as a rule,
they bind to ACPI device nodes that are ACPI companions of platform
devices, so in fact they play the role of platform drivers although in
a kind of convoluted way.  An effort has been under way to replace them
with platform drivers, which is relatively straightforward in the vast
majority of cases, but it has not been pursued very aggressively so far,
mostly due to the existence of the corner cases mentioned above.
However, since those corner cases are gone now, it makes sense to spend
more time on driver conversions with the ultimate goal to get rid of
struct acpi_driver and the related code from the kernel.

To that end, add a document explaining why using ACPI drivers is not
a good idea, so it need not be explained from scratch on every attempt
to convert an ACPI driver to a platform one.

Link: https://uefi.org/specs/ACPI/6.6/02_Definition_of_Terms.html#term-ACPI-Namespace [1]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Link: https://patch.msgid.link/2396510.ElGaqSPkdT@rafael.j.wysocki
2026-01-15 14:27:38 +01:00
Bartosz Golaszewski
3cf9dc2c7c Merge tag 'v6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into gpio/for-next
Linux 6.19-rc5

Pull in upstream shared GPIO fixes into the v7.0 branch.
2026-01-12 11:33:31 +01:00
Thomas Gleixner
2e4b28c48f treewide: Update email address
In a vain attempt to consolidate the email zoo switch everything to the
kernel.org account.

Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-01-11 06:09:11 -10:00
Ernest Van Hoecke
8ba379879a Documentation: gpio: pca953x: clarify interrupt source detection
There are multiple design tradeoffs and considerations in how the
PCA953x driver detects the source(s) of an interrupt. This driver
supports PCAL variants with input latching, a feature that is
constrained by the fact that the interrupt status and input port
registers cannot be read atomically. These limits and the design
decisions deserve an in-depth explanation.

Update the documentation to clarify these hardware limits and describe
how the driver determines pending interrupts, and how it makes use of
the PCAL input latching.

Signed-off-by: Ernest Van Hoecke <ernest.vanhoecke@toradex.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20260107093125.4053468-1-ernestvanhoecke@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
2026-01-08 10:50:33 +01:00
Srinivas Pandruvada
a499c24cc0 thermal: int340x: processor_thermal: Enable slow workload type hints
On processors starting from Panther Lake, additional workload type hints
are provided.

The hardware analyzes workload residencies over an extended period to
determine whether the workload classification tends toward idle/battery
life states or sustained/performance states. Based on this long-term
analysis, it classifies:

 Power Classification: If the workload exhibits more idle or battery
  life residencies, it is classified as "power". This is indicated by
  setting bit 4 of the current workload type.

 Performance Classification: If the workload exhibits more sustained
  or performance residencies, it is classified as "performance". This
  is indicated by clearing bit 4 of the current workload type.

This approach enables applications to ignore short-term workload
fluctuations and instead respond to longer-term power vs. performance
trends. Hints of this type are called slow workload hints.

To get notifications for slow workload hints, bit 22 in the thermal
mailbox can be used for configuring workload interrupts. It is possible
to exclusively enable slow workload hints or enable them in addition to
the current workload hints.

To enable slow workload hints, a new sysfs attribute is added to the
existing workload hint attributes:

 workload_slow_hint_enable (RW): Write 1 to enable, 0 to disable.

Reading this attribute shows the current state.

This attribute is not present on any previous generation of processors.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ rjw: Dropped redundant local variables, changelog edits ]
Link: https://patch.msgid.link/20251218222559.4110027-2-srinivas.pandruvada@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2026-01-07 21:42:10 +01:00
Geert Uytterhoeven
135739a2a9 Documentation: mailbox: mbox_chan_ops.flush() is optional
When the optional .flush() method was added to the mbox_chan structure,
the documentation was not updated.

Fixes: a8803d7421 ("mailbox: Support blocking transfers in atomic context")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <6a50a5d4f0d0da26e5cccf348550879e53792e6e.1764861174.git.geert+renesas@glider.be>
2025-12-22 15:30:31 -07:00
Andy Shevchenko
197bbebd25 docs: Update documentation to avoid mentioning of kernel.h
For several years, and still ongoing, the kernel.h is being split
to smaller and narrow headers to avoid "including everything" approach
which is bad in many ways. Since that, documentation missed a few
required updates to align with that work. Do it here.

Note, language translations are left untouched and if anybody willing
to help, please provide path(es) based on the updated English variant.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20251126214709.2322314-1-andriy.shevchenko@linux.intel.com>
2025-12-22 14:59:18 -07:00
Jan Remmet
d19c36134f Documentation: gpio: add TCAL6408 and TCAL6416
Checked datasheets, the offsets are identical to pcal6408 and pcal6416.

Signed-off-by: Jan Remmet <j.remmet@phytec.de>
Link: https://lore.kernel.org/r/20251216-wip-jremmet-tcal6416rtw-v2-1-6516d98a9836@phytec.de
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
2025-12-18 11:27:05 +01:00
Hans Verkuil
d0730006da media: vb2: remove vb2_ops_wait_prepare/finish helpers
Since vb2 now relies on the presence of the vb2_queue lock
field and there are no more drivers that use these helpers, it is safe
to drop them.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2025-12-18 11:14:57 +01:00
Uwe Kleine-König
71e47245f8 tee: Adapt documentation to cover recent additions
The previous commits introduced some helpers to reduce boilerplate
and bus specific callbacks for probe and remove.

Adapt the reference example to make use of these.

Reviewed-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2025-12-17 18:28:28 +01:00
Bhanu Seshu Kumar Valluri
08be54a9e5 docs: dmaengine: add explanation for phys field in dma_async_tx_descriptor structure
Describe the need to initialize the phys field in the dma_async_tx_descriptor
structure during its initialization.

Signed-off-by: Bhanu Seshu Kumar Valluri <bhanuseshukumar@gmail.com>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://patch.msgid.link/20251113064937.8735-1-bhanuseshukumar@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2025-12-16 21:23:20 +05:30
Linus Torvalds
9d588a1140 Merge tag 'platform-drivers-x86-v6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Ilpo Järvinen:

 - acer-wmi: Add PH16-72, PHN16-72, and PT14-51 fan control support

 - acpi: platform_profile: Add max-power profile option (power draw
   limited by the cooling hardware, may exceed battery power draw limit
   when on AC power)

 - amd/hsmp: Allow more than one data-fabric per socket

 - asus-armoury: Add WMI attributes driver to expose miscellaneous WMI
   functions through fw_attributes (deprecates the custom BIOS features
   interface through asus-wmi)

 - asus-wmi: Use brightness_set_blocking() for kbd led

 - ayaneo-ec: Add Ayaneo Embedded Controller driver

 - fs/nls:
     - Fix utf16 to utf8 string conversion when output size restricted
     - Improve error code consistency for utf8 to utf32 conversions

 - ideapad-laptop: Fast (Rapid Charge) charge type support

 - intel/hid: Add Dell Pro Rugged 10/12 tablet to VGBS DMI quirks

 - intel/pmc:
     - Arrow Lake telemetry GUID improvements
     - Add support for Wildcat Lake PMC information

 - intel_pmc_ipc: Fix ACPI buffer memleak

 - intel/punit_ipc: Fix memory corruption

 - intel/vsec: Wildcat Lake PMT telemetry support

 - lenovo-wmi-gamezone: Map "Extreme" performance mode to max-power

 - lg-laptop: Add support for the HDAP opregion field

 - serial-multi-instantiate: Add IRQ_RESOURCE_OPT for IRQ missing
   projects

 - thinkpad-t14s-ec: Improve suspend/resume support (lid LEDs, keyboard
   backlight)

 - uniwill: Add Uniwill laptop driver

 - wmi: Move under drivers/platform/wmi as non-x86 WMI support is around
   the corner and other WMI features will require adding more C files as
   well

 - tools/power/x86/intel-speed-select: v1.24
     - Check feature status to check if the feature enablement was
       successful
     - Reset SST-TF bucket structure to display valid bucket info

 - Miscellaneous cleanups / refactoring / improvements

* tag 'platform-drivers-x86-v6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (73 commits)
  tools/power/x86/intel-speed-select: v1.24 release
  tools/power/x86/intel-speed-select: Reset isst_turbo_freq_info for invalid buckets
  tools/power/x86/intel-speed-select: Check feature status
  platform/x86: asus-wmi: use brightness_set_blocking() for kbd led
  fs/nls: Fix inconsistency between utf8_to_utf32() and utf32_to_utf8()
  platform/x86: asus-armoury: add support for GA503QR
  platform/x86: intel_pmc_ipc: fix ACPI buffer memory leak
  platform/x86: hp-wmi: Order DMI board name arrays
  platform/x86/intel/hid: Add Dell Pro Rugged 10/12 tablet to VGBS DMI quirks
  platform: surface: replace use of system_wq with system_percpu_wq
  platform: x86: replace use of system_wq with system_percpu_wq
  platform/surface: acpi-notify: add WQ_PERCPU to alloc_workqueue users
  platform/x86: wmi-gamezone: Add Legion Go 2 Quirks
  platform/x86: lenovo-wmi-gamezone Use max-power rather than balanced-performance
  acpi: platform_profile - Add max-power profile option
  platform/x86/amd/pmf: Use devm_mutex_init() for mutex initialization
  platform/x86/amd/pmf: Add BIOS_INPUTS_MAX macro to replace hardcoded array size
  platform/x86: serial-multi-instantiate: Add IRQ_RESOURCE_OPT for IRQ missing projects
  platform/x86/amd/pmf: Refactor repetitive BIOS output handling
  platform/x86/uniwill: Add TUXEDO devices
  ...
2025-12-10 06:38:17 +09:00
Linus Torvalds
509d3f4584 Merge tag 'mm-nonmm-stable-2025-12-06-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:

 - "panic: sys_info: Refactor and fix a potential issue" (Andy Shevchenko)
   fixes a build issue and does some cleanup in ib/sys_info.c

 - "Implement mul_u64_u64_div_u64_roundup()" (David Laight)
   enhances the 64-bit math code on behalf of a PWM driver and beefs up
   the test module for these library functions

 - "scripts/gdb/symbols: make BPF debug info available to GDB" (Ilya Leoshkevich)
   makes BPF symbol names, sizes, and line numbers available to the GDB
   debugger

 - "Enable hung_task and lockup cases to dump system info on demand" (Feng Tang)
   adds a sysctl which can be used to cause additional info dumping when
   the hung-task and lockup detectors fire

 - "lib/base64: add generic encoder/decoder, migrate users" (Kuan-Wei Chiu)
   adds a general base64 encoder/decoder to lib/ and migrates several
   users away from their private implementations

 - "rbree: inline rb_first() and rb_last()" (Eric Dumazet)
   makes TCP a little faster

 - "liveupdate: Rework KHO for in-kernel users" (Pasha Tatashin)
   reworks the KEXEC Handover interfaces in preparation for Live Update
   Orchestrator (LUO), and possibly for other future clients

 - "kho: simplify state machine and enable dynamic updates" (Pasha Tatashin)
   increases the flexibility of KEXEC Handover. Also preparation for LUO

 - "Live Update Orchestrator" (Pasha Tatashin)
   is a major new feature targeted at cloud environments. Quoting the
   cover letter:

      This series introduces the Live Update Orchestrator, a kernel
      subsystem designed to facilitate live kernel updates using a
      kexec-based reboot. This capability is critical for cloud
      environments, allowing hypervisors to be updated with minimal
      downtime for running virtual machines. LUO achieves this by
      preserving the state of selected resources, such as memory,
      devices and their dependencies, across the kernel transition.

      As a key feature, this series includes support for preserving
      memfd file descriptors, which allows critical in-memory data, such
      as guest RAM or any other large memory region, to be maintained in
      RAM across the kexec reboot.

   Mike Rappaport merits a mention here, for his extensive review and
   testing work.

 - "kexec: reorganize kexec and kdump sysfs" (Sourabh Jain)
   moves the kexec and kdump sysfs entries from /sys/kernel/ to
   /sys/kernel/kexec/ and adds back-compatibility symlinks which can
   hopefully be removed one day

 - "kho: fixes for vmalloc restoration" (Mike Rapoport)
   fixes a BUG which was being hit during KHO restoration of vmalloc()
   regions

* tag 'mm-nonmm-stable-2025-12-06-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (139 commits)
  calibrate: update header inclusion
  Reinstate "resource: avoid unnecessary lookups in find_next_iomem_res()"
  vmcoreinfo: track and log recoverable hardware errors
  kho: fix restoring of contiguous ranges of order-0 pages
  kho: kho_restore_vmalloc: fix initialization of pages array
  MAINTAINERS: TPM DEVICE DRIVER: update the W-tag
  init: replace simple_strtoul with kstrtoul to improve lpj_setup
  KHO: fix boot failure due to kmemleak access to non-PRESENT pages
  Documentation/ABI: new kexec and kdump sysfs interface
  Documentation/ABI: mark old kexec sysfs deprecated
  kexec: move sysfs entries to /sys/kernel/kexec
  test_kho: always print restore status
  kho: free chunks using free_page() instead of kfree()
  selftests/liveupdate: add kexec test for multiple and empty sessions
  selftests/liveupdate: add simple kexec-based selftest for LUO
  selftests/liveupdate: add userspace API selftests
  docs: add documentation for memfd preservation via LUO
  mm: memfd_luo: allow preserving memfd
  liveupdate: luo_file: add private argument to store runtime state
  mm: shmem: export some functions to internal.h
  ...
2025-12-06 14:01:20 -08:00
Linus Torvalds
249872f53d Merge tag 'tsm-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/devsec/tsm
Pull PCIe Link Encryption and Device Authentication from Dan Williams:
 "New PCI infrastructure and one architecture implementation for PCIe
  link encryption establishment via platform firmware services.

  This work is the result of multiple vendors coming to consensus on
  some core infrastructure (thanks Alexey, Yilun, and Aneesh!), and
  three vendor implementations, although only one is included in this
  pull. The PCI core changes have an ack from Bjorn, the crypto/ccp/
  changes have an ack from Tom, and the iommu/amd/ changes have an ack
  from Joerg.

  PCIe link encryption is made possible by the soup of acronyms
  mentioned in the shortlog below. Link Integrity and Data Encryption
  (IDE) is a protocol for installing keys in the transmitter and
  receiver at each end of a link. That protocol is transported over Data
  Object Exchange (DOE) mailboxes using PCI configuration requests.

  The aspect that makes this a "platform firmware service" is that the
  key provisioning and protocol is coordinated through a Trusted
  Execution Envrionment (TEE) Security Manager (TSM). That is either
  firmware running in a coprocessor (AMD SEV-TIO), or quasi-hypervisor
  software (Intel TDX Connect / ARM CCA) running in a protected CPU
  mode.

  Now, the only reason to ask a TSM to run this protocol and install the
  keys rather than have a Linux driver do the same is so that later, a
  confidential VM can ask the TSM directly "can you certify this
  device?".

  That precludes host Linux from provisioning its own keys, because host
  Linux is outside the trust domain for the VM. It also turns out that
  all architectures, save for one, do not publish a mechanism for an OS
  to establish keys in the root port. So "TSM-established link
  encryption" is the only cross-architecture path for this capability
  for the foreseeable future.

  This unblocks the other arch implementations to follow in v6.20/v7.0,
  once they clear some other dependencies, and it unblocks the next
  phase of work to implement the end-to-end flow of confidential device
  assignment. The PCIe specification calls this end-to-end flow Trusted
  Execution Environment (TEE) Device Interface Security Protocol
  (TDISP).

  In the meantime, Linux gets a link encryption facility which has
  practical benefits along the same lines as memory encryption. It
  authenticates devices via certificates and may protect against
  interposer attacks trying to capture clear-text PCIe traffic.

  Summary:

   - Introduce the PCI/TSM core for the coordination of device
     authentication, link encryption and establishment (IDE), and later
     management of the device security operational states (TDISP).
     Notify the new TSM core layer of PCI device arrival and departure

   - Add a low level TSM driver for the link encryption establishment
     capabilities of the AMD SEV-TIO architecture

   - Add a library of helpers TSM drivers to use for IDE establishment
     and the DOE transport

   - Add skeleton support for 'bind' and 'guest_request' operations in
     support of TDISP"

* tag 'tsm-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/devsec/tsm: (23 commits)
  crypto/ccp: Fix CONFIG_PCI=n build
  virt: Fix Kconfig warning when selecting TSM without VIRT_DRIVERS
  crypto/ccp: Implement SEV-TIO PCIe IDE (phase1)
  iommu/amd: Report SEV-TIO support
  psp-sev: Assign numbers to all status codes and add new
  ccp: Make snp_reclaim_pages and __sev_do_cmd_locked public
  PCI/TSM: Add 'dsm' and 'bound' attributes for dependent functions
  PCI/TSM: Add pci_tsm_guest_req() for managing TDIs
  PCI/TSM: Add pci_tsm_bind() helper for instantiating TDIs
  PCI/IDE: Initialize an ID for all IDE streams
  PCI/IDE: Add Address Association Register setup for downstream MMIO
  resource: Introduce resource_assigned() for discerning active resources
  PCI/TSM: Drop stub for pci_tsm_doe_transfer()
  drivers/virt: Drop VIRT_DRIVERS build dependency
  PCI/TSM: Report active IDE streams
  PCI/IDE: Report available IDE streams
  PCI/IDE: Add IDE establishment helpers
  PCI: Establish document for PCI host bridge sysfs attributes
  PCI: Add PCIe Device 3 Extended Capability enumeration
  PCI/TSM: Establish Secure Sessions and Link Encryption
  ...
2025-12-06 10:15:41 -08:00
Linus Torvalds
56a1a04dc9 Merge tag 'libnvdimm-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull nvdimm updates from Ira Weiny:
 "These are mainly bug fixes and code updates.

  There is a new feature to divide up memmap= carve outs and a fix
  caught in linux-next for that patch. Managing memmap memory on the fly
  for multiple VM's was proving difficult and Mike provided a driver
  which allows for the memory to be better manged.

  Summary:
   - Allow exposing RAM carveouts as NVDIMM DIMM devices
   - Prevent integer overflow in ramdax_get_config_data()
   - Replace use of system_wq with system_percpu_wq
   - Documentation: btt: Unwrap bit 31-30 nested table
   - tools/testing/nvdimm: Use per-DIMM device handle"

* tag 'libnvdimm-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  nvdimm: Prevent integer overflow in ramdax_get_config_data()
  Documentation: btt: Unwrap bit 31-30 nested table
  nvdimm: replace use of system_wq with system_percpu_wq
  tools/testing/nvdimm: Use per-DIMM device handle
  nvdimm: allow exposing RAM carveouts as NVDIMM DIMM devices
2025-12-06 09:32:25 -08:00
Linus Torvalds
416f99c3b1 Merge tag 'driver-core-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core updates from Danilo Krummrich:
 "Arch Topology:
   - Move parse_acpi_topology() from arm64 to common code for reuse in
     RISC-V

  CPU:
   - Expose housekeeping CPUs through /sys/devices/system/cpu/housekeeping
   - Print a newline (or 0x0A) instead of '(null)' reading
     /sys/devices/system/cpu/nohz_full when nohz_full= is not set

  debugfs
   - Remove (broken) 'no-mount' mode
   - Remove redundant access mode checks in debugfs_get_tree() and
     debugfs_create_*() functions

  Devres:
   - Remove unused devm_free_percpu() helper
   - Move devm_alloc_percpu() from device.h to devres.h

  Firmware Loader:
   - Replace simple_strtol() with kstrtoint()
   - Do not call cancel_store() when no upload is in progress

  kernfs:
   - Increase struct super_block::maxbytes to MAX_LFS_FILESIZE
   - Fix a missing unwind path in __kernfs_new_node()

  Misc:
   - Increase the name size in struct auxiliary_device_id to 40
     characters
   - Replace system_unbound_wq with system_dfl_wq and add WQ_PERCPU to
     alloc_workqueue()

  Platform:
   - Replace ERR_PTR() with IOMEM_ERR_PTR() in platform ioremap
     functions

  Rust:
   - Auxiliary:
      - Unregister auxiliary device on parent device unbind
      - Move parent() to impl Device; implement device context aware
        parent() for Device<Bound>
      - Illustrate how to safely obtain a driver's device private data
        when calling from an auxiliary driver into the parant device
        driver

   - DebugFs:
      - Implement support for binary large objects

   - Device:
      - Let probe() return the driver's device private data as pinned
        initializer, i.e. impl PinInit<Self, Error>
      - Implement safe accessor for a driver's device private data for
        Device<Bound> (returned reference can't out-live driver binding
        and guarantees the correct private data type)
      - Implement AsBusDevice trait, to be used by class device
        abstractions to derive the bus device type of the parent device

   - DMA:
      - Store raw pointer of allocation as NonNull
      - Use start_ptr() and start_ptr_mut() to inherit correct
        mutability of self

   - FS:
      - Add file::Offset type alias

   - I2C:
      - Add abstractions for I2C device / driver infrastructure
      - Implement abstractions for manual I2C device registrations

   - I/O:
      - Use "kernel vertical" style for imports
      - Define ResourceSize as resource_size_t
      - Move ResourceSize to top-level I/O module
      - Add type alias for phys_addr_t
      - Implement Rust version of read_poll_timeout_atomic()

   - PCI:
      - Use "kernel vertical" style for imports
      - Move I/O and IRQ infrastructure to separate files
      - Add support for PCI interrupt vectors
      - Implement TryInto<IrqRequest<'a>> for IrqVector<'a> to convert
        an IrqVector bound to specific pci::Device into an IrqRequest
        bound to the same pci::Device's parent Device
      - Leverage pin_init_scope() to get rid of redundant Result in IRQ
        methods

   - PinInit:
      - Add {pin_}init_scope() to execute code before creating an
        initializer

   - Platform:
      - Leverage pin_init_scope() to get rid of redundant Result in IRQ
        methods

   - Timekeeping:
      - Implement abstraction of udelay()

   - Uaccess:
      - Implement read_slice_partial() and read_slice_file() for
        UserSliceReader
      - Implement write_slice_partial() and write_slice_file() for
        UserSliceWriter

  sysfs:
   - Prepare the constification of struct attribute"

* tag 'driver-core-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (75 commits)
  rust: pci: fix build failure when CONFIG_PCI_MSI is disabled
  debugfs: Fix default access mode config check
  debugfs: Remove broken no-mount mode
  debugfs: Remove redundant access mode checks
  driver core: Check drivers_autoprobe for all added devices
  driver core: WQ_PERCPU added to alloc_workqueue users
  driver core: replace use of system_unbound_wq with system_dfl_wq
  tick/nohz: Expose housekeeping CPUs in sysfs
  tick/nohz: avoid showing '(null)' if nohz_full= not set
  sysfs/cpu: Use DEVICE_ATTR_RO for nohz_full attribute
  kernfs: fix memory leak of kernfs_iattrs in __kernfs_new_node
  fs/kernfs: raise sb->maxbytes to MAX_LFS_FILESIZE
  mod_devicetable: Bump auxiliary_device_id name size
  sysfs: simplify attribute definition macros
  samples/kobject: constify 'struct foo_attribute'
  samples/kobject: add is_visible() callback to attribute group
  sysfs: attribute_group: enable const variants of is_visible()
  sysfs: introduce __SYSFS_FUNCTION_ALTERNATIVE()
  sysfs: transparently handle const pointers in ATTRIBUTE_GROUPS()
  sysfs: attribute_group: allow registration of const attribute
  ...
2025-12-05 21:29:02 -08:00
Linus Torvalds
208eed95fc Merge tag 'soc-drivers-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC driver updates from Arnd Bergmann:
 "This is the first half of the driver changes:

   - A treewide interface change to the "syscore" operations for power
     management, as a preparation for future Tegra specific changes

   - Reset controller updates with added drivers for LAN969x, eic770 and
     RZ/G3S SoCs

   - Protection of system controller registers on Renesas and Google
     SoCs, to prevent trivially triggering a system crash from e.g.
     debugfs access

   - soc_device identification updates on Nvidia, Exynos and Mediatek

   - debugfs support in the ST STM32 firewall driver

   - Minor updates for SoC drivers on AMD/Xilinx, Renesas, Allwinner, TI

   - Cleanups for memory controller support on Nvidia and Renesas"

* tag 'soc-drivers-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (114 commits)
  memory: tegra186-emc: Fix missing put_bpmp
  Documentation: reset: Remove reset_controller_add_lookup()
  reset: fix BIT macro reference
  reset: rzg2l-usbphy-ctrl: Fix a NULL vs IS_ERR() bug in probe
  reset: th1520: Support reset controllers in more subsystems
  reset: th1520: Prepare for supporting multiple controllers
  dt-bindings: reset: thead,th1520-reset: Add controllers for more subsys
  dt-bindings: reset: thead,th1520-reset: Remove non-VO-subsystem resets
  reset: remove legacy reset lookup code
  clk: davinci: psc: drop unused reset lookup
  reset: rzg2l-usbphy-ctrl: Add support for RZ/G3S SoC
  reset: rzg2l-usbphy-ctrl: Add support for USB PWRRDY
  dt-bindings: reset: renesas,rzg2l-usbphy-ctrl: Document RZ/G3S support
  reset: eswin: Add eic7700 reset driver
  dt-bindings: reset: eswin: Documentation for eic7700 SoC
  reset: sparx5: add LAN969x support
  dt-bindings: reset: microchip: Add LAN969x support
  soc: rockchip: grf: Add select correct PWM implementation on RK3368
  soc/tegra: pmc: Add USB wake events for Tegra234
  amba: tegra-ahb: Fix device leak on SMMU enable
  ...
2025-12-05 17:29:04 -08:00
Linus Torvalds
a3ebb59eee Merge tag 'vfio-v6.19-rc1' of https://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:

 - Move libvfio selftest artifacts in preparation of more tightly
   coupled integration with KVM selftests (David Matlack)

 - Fix comment typo in mtty driver (Chu Guangqing)

 - Support for new hardware revision in the hisi_acc vfio-pci variant
   driver where the migration registers can now be accessed via the PF.
   When enabled for this support, the full BAR can be exposed to the
   user (Longfang Liu)

 - Fix vfio cdev support for VF token passing, using the correct size
   for the kernel structure, thereby actually allowing userspace to
   provide a non-zero UUID token. Also set the match token callback for
   the hisi_acc, fixing VF token support for this this vfio-pci variant
   driver (Raghavendra Rao Ananta)

 - Introduce internal callbacks on vfio devices to simplify and
   consolidate duplicate code for generating VFIO_DEVICE_GET_REGION_INFO
   data, removing various ioctl intercepts with a more structured
   solution (Jason Gunthorpe)

 - Introduce dma-buf support for vfio-pci devices, allowing MMIO regions
   to be exposed through dma-buf objects with lifecycle managed through
   move operations. This enables low-level interactions such as a
   vfio-pci based SPDK drivers interacting directly with dma-buf capable
   RDMA devices to enable peer-to-peer operations. IOMMUFD is also now
   able to build upon this support to fill a long standing feature gap
   versus the legacy vfio type1 IOMMU backend with an implementation of
   P2P support for VM use cases that better manages the lifecycle of the
   P2P mapping (Leon Romanovsky, Jason Gunthorpe, Vivek Kasireddy)

 - Convert eventfd triggering for error and request signals to use RCU
   mechanisms in order to avoid a 3-way lockdep reported deadlock issue
   (Alex Williamson)

 - Fix a 32-bit overflow introduced via dma-buf support manifesting with
   large DMA buffers (Alex Mastro)

 - Convert nvgrace-gpu vfio-pci variant driver to insert mappings on
   fault rather than at mmap time. This conversion serves both to make
   use of huge PFNMAPs but also to both avoid corrected RAS events
   during reset by now being subject to vfio-pci-core's use of
   unmap_mapping_range(), and to enable a device readiness test after
   reset (Ankit Agrawal)

 - Refactoring of vfio selftests to support multi-device tests and split
   code to provide better separation between IOMMU and device objects.
   This work also enables a new test suite addition to measure parallel
   device initialization latency (David Matlack)

* tag 'vfio-v6.19-rc1' of https://github.com/awilliam/linux-vfio: (65 commits)
  vfio: selftests: Add vfio_pci_device_init_perf_test
  vfio: selftests: Eliminate INVALID_IOVA
  vfio: selftests: Split libvfio.h into separate header files
  vfio: selftests: Move vfio_selftests_*() helpers into libvfio.c
  vfio: selftests: Rename vfio_util.h to libvfio.h
  vfio: selftests: Stop passing device for IOMMU operations
  vfio: selftests: Move IOVA allocator into iova_allocator.c
  vfio: selftests: Move IOMMU library code into iommu.c
  vfio: selftests: Rename struct vfio_dma_region to dma_region
  vfio: selftests: Upgrade driver logging to dev_err()
  vfio: selftests: Prefix logs with device BDF where relevant
  vfio: selftests: Eliminate overly chatty logging
  vfio: selftests: Support multiple devices in the same container/iommufd
  vfio: selftests: Introduce struct iommu
  vfio: selftests: Rename struct vfio_iommu_mode to iommu_mode
  vfio: selftests: Allow passing multiple BDFs on the command line
  vfio: selftests: Split run.sh into separate scripts
  vfio: selftests: Move run.sh into scripts directory
  vfio/nvgrace-gpu: wait for the GPU mem to be ready
  vfio/nvgrace-gpu: Inform devmem unmapped after reset
  ...
2025-12-04 18:42:48 -08:00
Linus Torvalds
ce5cfb0fa2 Merge tag 'iommu-updates-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
Pull iommu updates from Joerg Roedel:

 - Introduction of the generic IO page-table framework with support for
   Intel and AMD IOMMU formats from Jason.

   This has good potential for unifying more IO page-table
   implementations and making future enhancements more easy. But this
   also needed quite some fixes during development. All known issues
   have been fixed, but my feeling is that there is a higher potential
   than usual that more might be needed.

 - Intel VT-d updates:
    - Use right invalidation hint in qi_desc_iotlb()
    - Reduce the scope of INTEL_IOMMU_FLOPPY_WA

 - ARM-SMMU updates:
    - Qualcomm device-tree binding updates for Kaanapali and Glymur SoCs
      and a new clock for the TBU.
    - Fix error handling if level 1 CD table allocation fails.
    - Permit more than the architectural maximum number of SMRs for
      funky Qualcomm mis-implementations of SMMUv2.

 - Mediatek driver:
    - MT8189 iommu support

 - Move ARM IO-pgtable selftests to kunit

 - Device leak fixes for a couple of drivers

 - Random smaller fixes and improvements

* tag 'iommu-updates-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (81 commits)
  iommupt/vtd: Support mgaw's less than a 4 level walk for first stage
  iommupt/vtd: Allow VT-d to have a larger table top than the vasz requires
  powerpc/pseries/svm: Make mem_encrypt.h self contained
  genpt: Make GENERIC_PT invisible
  iommupt: Avoid a compiler bug with sw_bit
  iommu/arm-smmu-qcom: Enable use of all SMR groups when running bare-metal
  iommupt: Fix unlikely flows in increase_top()
  iommu/amd: Propagate the error code returned by __modify_irte_ga() in modify_irte_ga()
  MAINTAINERS: Update my email address
  iommu/arm-smmu-v3: Fix error check in arm_smmu_alloc_cd_tables
  dt-bindings: iommu: qcom_iommu: Allow 'tbu' clock
  iommu/vt-d: Restore previous domain::aperture_end calculation
  iommu/vt-d: Fix unused invalidation hint in qi_desc_iotlb
  iommu/vt-d: Set INTEL_IOMMU_FLOPPY_WA depend on BLK_DEV_FD
  iommu/tegra: fix device leak on probe_device()
  iommu/sun50i: fix device leak on of_xlate()
  iommu/omap: simplify probe_device() error handling
  iommu/omap: fix device leaks on probe_device()
  iommu/mediatek-v1: add missing larb count sanity check
  iommu/mediatek-v1: fix device leaks on probe()
  ...
2025-12-04 18:05:06 -08:00
Linus Torvalds
5797d10ea4 Merge tag 'cxl-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull compute express link (CXL) updates from Dave Jiang:
 "The additions of note are adding CXL region remove support for locked
  CXL decoders, adding unit testing support for XOR address translation,
  and adding unit testing support for extended linear cache.

  Misc:
   - Remove incorrect page-allocator quirk section in documentation
   - Remove unused devm_cxl_port_enumerate_dports() function
   - Fix typo in cdat.c code comment
   - Replace use of system_wq with system_percpu_wq
   - Add locked CXL decoder support for region removal
   - Return when generic target updated
   - Rename region_res_match_cxl_range() to spa_maps_hpa()
   - Clarify comment in spa_maps_hpa()

  Enable unit testing for XOR address translation of SPA to DPA and vice versa:
   - Refactor address translation funcs for testing in cxl_region
   - Make the XOR calculations available for testing
   - Add cxl_translate module for address translation testing in
     cxl_test

  Extended Linear Cache changes:
   - Add extended linear cache size sysfs attribute
   - Adjust failure emission of extended linear cache detection in
     cxl_acpi
   - Added extended linear cache unit testing support in cxl_test

  Preparation refactor patches for PRM translation support:
   - Simplify cxl_rd_ops allocation and handling
   - Group xor arithmetric setup code in a single block
   - Remove local variable @inc in cxl_port_setup_targets()"

* tag 'cxl-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (22 commits)
  cxl/test: Assign overflow_err_count from log->nr_overflow
  cxl/test: Remove ret_limit race condition in mock_get_event()
  cxl/test: remove unused mock function for cxl_rcd_component_reg_phys()
  cxl/test: Add support for acpi extended linear cache
  cxl/test: Add cxl_test CFMWS support for extended linear cache
  cxl/test: Standardize CXL auto region size
  cxl/region: Remove local variable @inc in cxl_port_setup_targets()
  cxl/acpi: Group xor arithmetric setup code in a single block
  cxl: Simplify cxl_rd_ops allocation and handling
  cxl: Clarify comment in spa_maps_hpa()
  cxl: Rename region_res_match_cxl_range() to spa_maps_hpa()
  acpi/hmat: Return when generic target is updated
  cxl: Add handling of locked CXL decoder
  cxl/region: Add support to indicate region has extended linear cache
  cxl: Adjust extended linear cache failure emission in cxl_acpi
  cxl/test: Add cxl_translate module for address translation testing
  cxl/acpi: Make the XOR calculations available for testing
  cxl/region: Refactor address translation funcs for testing
  cxl/pci: replace use of system_wq with system_percpu_wq
  cxl: fix typos in cdat.c comments
  ...
2025-12-04 17:55:18 -08:00
Linus Torvalds
43dfc13ca9 Merge tag 'pci-v6.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull PCI updates from Bjorn Helgaas:
 "Enumeration:

   - Enable host bridge emulation for PCI_DOMAINS_GENERIC platforms (Dan
     Williams)

   - Switch vmd from custom domain number allocator to the common
     allocator to prevent a potential race with new non-VMD buses (Dan
     Williams)

   - Enable Precision Time Measurement (PTM) only if device advertises
     support for a relevant role, to prevent invalid PTM Requests that
     cause ACS violations that are reported as AER Uncorrectable
     Non-Fatal errors (Mika Westerberg)

  Resource management:

   - Prevent resource tree corruption when BAR resize fails (Ilpo
     Järvinen)

   - Restore BARs to the original size if a BAR resize fails (Ilpo
     Järvinen)

   - Remove BAR release from BAR resize attempts by the xe, i915, and
     amdgpu drivers so the PCI core can restore BARs if the resize fails
     (Ilpo Järvinen)

   - Move Resizable BAR code to rebar.c (Ilpo Järvinen)

   - Add pci_rebar_size_supported() and use it in i915 and xe (Ilpo
     Järvinen)

   - Add pci_rebar_get_max_size() and use it in xe and amdgpu (Ilpo
     Järvinen)

  Power management and error handling:

   - For drivers using PCI legacy suspend, save config state at suspend
     so that state (not any earlier state from enumeration, probe, or
     error recovery) will be restored when resuming (Lukas Wunner)

   - For devices with no driver or a driver that lacks power management,
     save config state at hibernate so that state (not any earlier state
     from enumeration, probe, or error recovery) will be restored when
     resuming (Lukas Wunner)

   - Save device config space on device addition, before driver binding,
     so error recovery works more reliably (Lukas Wunner)

   - Drop pci_save_state() from several drivers that no longer need it
     since the PCI core always does it and pci_restore_state() no longer
     invalidates the saved state (Lukas Wunner)

   - Document use of pci_save_state() by drivers to capture the state
     they want restored during error recovery (Lukas Wunner)

  Power control:

   - Add a struct pci_ops.assert_perst() function pointer to
     assert/deassert PCIe PERST# and implement it for the qcom driver
     (Krishna Chaitanya Chundru)

   - Add DT binding and pwrctrl driver for the Toshiba TC9563 PCIe
     switch, which must be held in reset after poweron so the pwrctrl
     driver can configure the switch via I2C before bringing up the
     links (Krishna Chaitanya Chundru)

  Endpoint framework:

   - Convert the endpoint doorbell test to use a threaded IRQ to fix a
     'sleeping while atomic' issue (Bhanu Seshu Kumar Valluri)

   - Add endpoint VNTB MSI doorbell support to reduce latency between
     host and endpoint (Frank Li)

  New native PCIe controller drivers:

   - Add CIX Sky1 host controller DT binding and driver (Hans Zhang)

   - Add NXP S32G host controller DT binding and driver (Vincent
     Guittot)

   - Add Renesas RZ/G3S host controller DT binding and driver (Claudiu
     Beznea)

   - Add SpacemiT K1 host controller DT binding and driver (Alex Elder)

  Amlogic Meson PCIe controller driver:

   - Update DT binding to name DBI region 'dbi', not 'elbi', and update
     driver to support both (Manivannan Sadhasivam)

  Apple PCIe controller driver:

   - Move struct pci_host_bridge allocation from pci_host_common_init()
     to callers, which significantly simplifies pcie-apple (Marc
     Zyngier)

  Broadcom STB PCIe controller driver:

   - Disable advertising ASPM L0s support correctly (Jim Quinlan)

   - Add a panic/die handler to print diagnostic info in case PCIe
     caused an unrecoverable abort (Jim Quinlan)

  Cadence PCIe controller driver:

   - Add module support for Cadence platform host and endpoint
     controller driver (Manikandan K Pillai)

   - Split headers into 'legacy' (LGA) and 'high perf' (HPA) to prepare
     for new CIX Sky1 driver (Manikandan K Pillai)

  MediaTek PCIe controller driver:

   - Convert DT binding to YAML schema (Christian Marangi)

   - Add Airoha AN7583 DT compatible and driver support (Christian
     Marangi)

  Qualcomm PCIe controller driver:

   - Add Qualcomm Kaanapali to SM8550 DT binding (Qiang Yu)

   - Add required 'power-domains' and 'resets' to qcom sa8775p, sc7280,
     sc8280xp, sm8150, sm8250, sm8350, sm8450, sm8550, x1e80100 DT
     schemas (Krzysztof Kozlowski)

   - Look up OPP using both frequency and data rate (not just frequency)
     so RPMh votes can account for both (Krishna Chaitanya Chundru)

  Rockchip DesignWare PCIe controller driver:

   - Add Rockchip RK3528 compatible strings in DT binding (Yao Zi)

  STMicroelectronics STM32MP25 PCIe controller driver:

   - Fix a race between link training and endpoint register
     initialization (Christian Bruel)

   - Align endpoint allocations to match the ATU requirements (Christian
     Bruel)

  Synopsys DesignWare PCIe controller driver:

   - Clear L1 PM Substate Capability 'Supported' bits unless glue driver
     says it's supported, which prevents users from enabling non-working
     L1SS. Currently only qcom and tegra194 support L1SS (Bjorn Helgaas)

   - Remove now-superfluous L1SS disable code from tegra194 (Bjorn
     Helgaas)

   - Configure L1SS support in dw-rockchip when DT says
     'supports-clkreq' (Shawn Lin)

  TI Keystone PCIe controller driver:

   - Fail the probe instead of silently succeeding if ks_pcie_of_data
     didn't specify Root Complex or Endpoint mode (Siddharth Vadapalli)

   - Make keystone buildable as a loadable module, except on ARM32 where
     hook_fault_code() is __init (Siddharth Vadapalli)"

* tag 'pci-v6.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (100 commits)
  MAINTAINERS: Add Manivannan Sadhasivam as PCI/pwrctrl maintainer
  MAINTAINERS: Add CIX Sky1 PCIe controller driver maintainer
  PCI: sky1: Add PCIe host support for CIX Sky1
  dt-bindings: PCI: Add CIX Sky1 PCIe Root Complex bindings
  PCI: cadence: Add support for High Perf Architecture (HPA) controller
  MAINTAINERS: Add NXP S32G PCIe controller driver maintainer
  PCI: s32g: Add NXP S32G PCIe controller driver (RC)
  PCI: dwc: Add register and bitfield definitions
  dt-bindings: PCI: s32g: Add NXP S32G PCIe controller
  PCI: Add Renesas RZ/G3S host controller driver
  PCI: host-generic: Move bridge allocation outside of pci_host_common_init()
  dt-bindings: PCI: Add Renesas RZ/G3S PCIe controller binding
  PCI: Validate pci_rebar_size_supported() input
  Documentation: PCI: Amend error recovery doc with pci_save_state() rules
  treewide: Drop pci_save_state() after pci_restore_state()
  PCI/ERR: Ensure error recoverability at all times
  PCI/PM: Stop needlessly clearing state_saved on enumeration and thaw
  PCI/PM: Reinstate clearing state_saved in legacy and !PM codepaths
  PCI: dw-rockchip: Configure L1SS support
  PCI: tegra194: Remove unnecessary L1SS disable code
  ...
2025-12-04 17:29:41 -08:00
Linus Torvalds
b1dd1e2f3e Merge tag 'efi-next-for-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI updates from Ard Biesheuvel:
 "The usual trickle of EFI contributions:

   - Parse SMBIOS tables in memory directly on Macbooks that do not
     implement the EFI SMBIOS protocol

   - Obtain EDID information from the primary display while running in
     the EFI stub, and expose it via bootparams on x86 (generic method
     is in the works, and will likely land during the next cycle)

   - Bring CPER handling for ARM systems up to data with the latest EFI
     spec changes

   - Various cosmetic changes"

* tag 'efi-next-for-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
  docs: efi: add CPER functions to driver-api
  efi/cper: align ARM CPER type with UEFI 2.9A/2.10 specs
  efi/cper: Add a new helper function to print bitmasks
  efi/cper: Adjust infopfx size to accept an extra space
  RAS: Report all ARM processor CPER information to userspace
  efi/libstub: x86: Store EDID in boot_params
  efi/libstub: gop: Add support for reading EDID
  efi/libstub: gop: Initialize screen_info in helper function
  efi/libstub: gop: Find GOP handle instead of GOP data
  efi: Fix trailing whitespace in header file
  efi/memattr: Convert efi_memattr_init() return type to void
  efi: stmm: fix kernel-doc "bad line" warnings
  efi/riscv: Remove the useless failure return message print
  efistub/x86: Add fallback for SMBIOS record lookup
2025-12-04 17:10:08 -08:00
Linus Torvalds
500920fa76 Merge tag 'gpio-updates-for-v6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
 "There's one new driver, lots of various updates to existing ones, some
  refactoring support for new models and misc tweaks and fixes.

  The biggest new feature in GPIO core is adding support for managed,
  enable-counted sharing of GPIO pins, something that - until now - was
  only hacked around with the GPIOD_FLAGS_BIT_NONEXCLUSIVE request flag
  which basically allowed drivers to "fight it out" for the descriptor
  and provided no synchronization. It was enabled on Qualcomm platforms
  (and thus is enabled on arm64 defconfig) and I plan on removing
  GPIOD_FLAGS_BIT_NONEXCLUSIVE once all drivers using it are switched to
  the new mechanism.

  GPIO core:
   - add proper support for shared GPIOs that's aiming to replace the
     current sharing mechanism (which provides no synchronization ot
     enable counting) and enable it for Qualcomm platforms
   - improve the software node GPIO lookup by using the fwnode
     representation instead of the software node's name which was prone
     to bugs (GPIO controllers don't have to use the software node's
     name as their kernel label)
   - remove the last user of legacy-of-mm-gpiochip.h and drop the header
   - move closer to removing the legacy gpio_request_one() routine
   - rename some symbols for consistency
   - shrink GPIO printk() helpers by reusing existing code
   - remove some redundant kernel messages
   - use min() instead of min_t() in GPIO ACPI code
   - use system_percpu_wq instead of system_wq in GPIO character device
     code

  New drivers:
   - add a driver for the QIXIS FPGA GPIO controller

  Driver improvements:
   - use modernized variants of power management macros across a wide
     array of drivers in order to avoid having to use the __maybe_unused
     attribute
   - convert gpio-elkhartlake and reset-gpio to using the auxiliary bus
     instead of the platform bus as they are not really described in
     firmware
   - use lock guards and update symbol prefixes in gpio-mmio
   - support the bryx radio interface kit in gpio-mpsse + refactor the
     driver
   - use software nodes for configuring the reset-gpio driver, including
     setting up the reference to the shared "reset" pin
   - check and propagate the return value of gpiod_set_value() to
     user-space in gpio-virtuser (this was previously not possible as
     this function returned void)
   - extend the gpio-regmap helper with more features (bypass cache for
     aliased inputs, force writes for aliased data registers, add a new
     configuration parameter)
   - remove unneeded includes from gpio-aspeed and gpio-latch
   - add support for Tegra410 to gpio-tegra186
   - replace PCI-specific PM with generic device-level PM in gpio-bt8xx
   - use dynamic GPIO range allocation in gpio-loongson-64bit
   - improve handling of level-triggered interrupts in gpio-pca953x
   - add suspend/resume support to gpio-fxl6408
   - add support for more models to gpio-menz127
   - optimize gpio-mvebu interrupt handling by avoiding unnecessary
     calls to mvebu_gpio_irq_handler()
   - make locking more consistent in gpio-grgpio

  Device-tree bindings:
   - document new NXP and Microchip models

  Documentation:
   - add a comprehensive compatibility and feature list for
     gpio-pca953x, which is a great addition as it's probably the most
     commonly used GPIO expander driver
   - kernel-doc tweaks

  Late fixes:
   - use BYTE_CTRL_MODE for 2K2000/3000 models in gpio-loongson"

* tag 'gpio-updates-for-v6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (80 commits)
  gpio: loongson: Switch 2K2000/3000 GPIO to BYTE_CTRL_MODE
  gpio: regmap: fix kernel-doc notation
  gpio: shared: fix a deadlock
  gpio: shared-proxy: set suppress_bind_attrs
  gpio: shared: ignore GPIO hogs when traversing the device tree
  gpio: shared: ignore special __symbols__ node when traversing device tree
  gpio: shared: handle the reset-gpios corner case
  gpio: zynq: Use modern PM macros
  gpio: xilinx: Use modern PM macros
  gpio: xgene: Use modern PM macros
  gpio: uniphier: Use modern PM macros
  gpio: tqmx86: Use modern PM macros
  gpio: pch: Use modern PM macros
  gpio: omap: Use modern PM macros
  gpio: msc313: Use modern PM macros
  gpio: mlxbf2: Use modern PM macros
  gpio: ml-ioh: Use modern PM macros
  gpio: pl061: Use modern PM macros
  gpio: htc-egpio: Use modern PM macros
  gpio: brcmstb: Use modern PM macros
  ...
2025-12-04 12:33:38 -08:00
Linus Torvalds
d7aa60d966 Merge tag 'media/v6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:

 - New drivers:
    - Mali-C55 ISP
    - Rockchip VICAP (RKCIF)
    - RKVDEC HEVC Decoder
    - Renesas RZV2H IVC
    - Sony IMX111 CMOS sensor driver

 - Removed STi C8SECTPFE Driver

 - Added a V4L2 ISP generic framework

 - Usual set of cleanup, fixes and driver improvements

* tag 'media/v6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (249 commits)
  media: rockchip: rkcif: add support for rk3568 vicap mipi capture
  media: rockchip: rkcif: add support for rk3568 vicap dvp capture
  media: rockchip: rkcif: add support for px30 vip dvp capture
  media: rockchip: rkcif: add abstraction for dma blocks
  media: rockchip: rkcif: add abstraction for interface and crop blocks
  media: rockchip: add driver for the rockchip camera interface
  media: dt-bindings: add rockchip rk3568 vicap
  media: dt-bindings: add rockchip px30 vip
  media: dt-bindings: video-interfaces: add defines for sampling modes
  Documentation: admin-guide: media: add rockchip camera interface
  media: mali-c55: Mark pm handlers as __maybe_unused
  media: mali-c55: Assert ISP blocks size correctness
  media: v4l2-isp: Rename block_info to block_type_info
  MAINTAINERS: Add entry for rzv2h-ivc driver
  media: platform: Add Renesas Input Video Control block driver
  dt-bindings: media: Add bindings for the RZ/V2H(P) IVC block
  Documentation: media: mali-c55: Document the mali-c55 parameter setting
  media: platform: Add mali-c55 parameters video node
  media: uapi: Add parameters structs to mali-c55-config.h
  media: mali-c55: Add image formats for Mali-C55 parameters buffer
  ...
2025-12-04 08:15:19 -08:00