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Linus Torvalds 4b99990cdf Merge tag 'drm-next-2026-06-17' of https://gitlab.freedesktop.org/drm/kernel 
Pull drm updates from Dave Airlie:
 "Highlights:
   - xe: add initial CRI platform support
   - amdgpu: initial HDMI 2.1 FRL support
   - rust: add some new type concepts for device lifetimes
   - scheduler: moves to a fair algorithm and lots of cleanups

  But it's mostly the usual mountain of changes across the board.

  core:
   - add docbook for DRM_IOCTL_SYNCOBJ_EVENTFD
   - change signature of drm_connector_attach_hdr_output_metadata_property
   - dedup counter and timestamp retrieval in vblank code
   - parse AMD VSDB v3 in CTA extension blocks
   - add P230, Y7, XYYY2101010, T430, XVUY210101010 formats
   - don't call drop master on file close if not master
   - use drm_printf_indent in atomic / bridge
   - fix 32b format descriptions
   - docs: fix toctree
   - hdmi: add common TMDS character rates
   - fix drm_syncobj_find_fence leak

  rust:
   - introduce Higher-Ranked lifetime types
   - replace drvdata with scoped registration data
   - add GPUVM immediate mode abstraction for rust GPU drivers
   - introduce DeviceContext type state for drm::Device

  bridge:
   - clarify drm_bridge_get/put
   - create drm_get_bridge_by_endpoint and use it
   - analogix_dp: add panel probing
   - ite-it6211 - use drm audio hdmi helpers

  buddy:
   - add lockdep annotations

  dp:
   - add PR and VRR updates
   - mst: fix buffer overflows
   - add Adaptive Sync SDP decoding support
   - fix OOB reads in dp-mst

  ttm:
   - bump fpfn/lpfn to 64-bit

  scheduler:
   - change default to fair scheduler
   - map runqueue 1:1 with scheduler

  dma-buf:
   - port selftests to kunit
   - convert dma-buf system/heap allocators to module
   - add separate DMABUF_HEAPS_SYSTEM_CC_SHARED Kconfig

  udmabuf:
   - revert hugetlb support
   - fix error with CONFIG_DMA_API_DEBUG

  dma-fence:
   - fix tracepoints lifetime
   - remove unused signal on any support

  ras:
   - add clear error counter netlink command to drm ras

  gpusvm:
   - reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges
   - use IOVA allocations

  pagemap:
   - use IOVA allocations

  panels:
   - update to use ref counts
   - add support for CSW PNB601LS1-2, LGD LP116WHA-SPB1
   - add support for waveshare panels
   - CMN N116BCN-EA1, CMN N140HCA-EEK, IVO M140NWFQ R5,
   - IVO, R140NWFW R0, BOE NT140*, BOE NV133FHM-N4F,
   - AUO B140*, AUO B133HAN06.6 and AUO B116XTN02.3 eDP panels
   - Surface Pro 12 Panel

  xe:
   - add CRI PCI-IDs
   - debugfs add multi-lrc info
   - engine init cleanup
   - PF fair scheduling auto provisioning
   - system controller support for CRI/Xe3p
   - PXP state machine fixes
   - Reset/wedge/unload corner case fixes
   - Wedge path memory allocation fixes
   - PAT type cleanups
   - Reject unsafe PAT for CPU cached memory
   - OA improvements for CRI device memory
   - kernel doc syntax in xe headers
   - xe_drm.h documentation fixes
   - include guard cleanups
   - VF CCS memory pool
   - i915/xe step unification
   - Xe3p GT tuning fixes
   - forcewake cleanup in GT and GuC
   - admin-only PF mode
   - enable hwmon energy attributes for CRI
   - enable GT_MI_USER_INTERRUPT
   - refactor emit functions
   - oa workarounds
   - multi_queue: allow QUEUE_TIMESTAMP register
   - convert stolen memory to ttm range manager
   - use xe2 style blitter as a feature flag
   - make drm_driver const
   - add/use IRQ page to HW engine definition
   - fix oops when display disabled

  i915:
   - enable PIPEDMC_ERROR interrupt
   - more common display code refactoring
   - restructure DP/HDMI sink format handling
   - eliminate FB usage from lowlevel pinning code
   - panel replay bw optimization
   - integrate sharpness filter into the scaler
   - new fb_pin abstraction for xe/i915 fb transparent handling
   - skip inactive MST connectors on HDCP
   - start switching to display specific registers
   - use polling when irq unavailable
   - Adaptive-sync SDP prep

  amdgpu:
   - use drm_display_info for AMD VSDB data
   - Initial HDMI 2.1 FRL support
   - Initial DCN 4.2.1 support
   - GART fixes for non-4k pages
   - GC 11.5.6/SDMA 6.4.0/and other new IPs
   - GFX9/DCE6/Hawaii/SDMA4/GART/Userq fixes
   - Finish support for using multiple SDMA queues for TTM operations
   - SWSMU updates
   - GC 12.1 updates
   - SMU 15.0.8 updates
   - DCN 4.2 updates
   - DC type conversion fixes
   - Enable DC power module
   - Replay/PSR updates
   - SMU 13.x updates
   - Compute queue quantum MQD updates
   - ASPM fix
   - Align VKMS with common implementation
   - DC analog support fixes
   - UVD 3 fixes
   - TCC harvesting fixes for SI
   - GC 11 APU module reload fix
   - NBIO 6.3.2 support
   - IH 7.1 updates
   - DC cursor fixes
   - VCN/JPEG user fence fixes
   - DC support for connectors without DDC
   - Prefer ROM BAR for default VGA device
   - DC bandwidth fixes
   - Add PTL support for profiler
   - Introduce dc_plane_cm and migrate surface update color path
   - Add FRL registers for HDMI 2.1
   - Restructure VM state machine
   - Auxless ALPM support
   - GEM_OP locking/warning fixes
   - switch to system_dfl_wq

  amdkfd:
   - GPUVM TLB flush fix
   - Hotplug fix
   - Boundary check fixes
   - SVM fixes
   - CRIU fixes
   - add profiler API
   - MES 12.1 updates

  msm:
   - core:
     - fix shrinker documentation
     - IFPC enabled for gen8
     - PERFCNTR_CONFIG ioctl support
   - GPU:
     - reworked UBWC handling
     - a810 support
   - MDSS:
     - add support for Milos platform
     - reworked UBWC handling
   - DisplayPort:
     - reworked HPD handling as prep for MST
   - DPU:
     - Milos platform support
     - reworked UBWC handling
   - DSI:
     - Milos platform support

  nova:
   - Hopper/Blackwell enablement (GH100/GB100/GB202)
     - FSP support
     - 32-bit firmware support
     - HAL functions
   - refactor GSP boot/unload
   - GA100 support
   - VBIOS hardening/refactoring
   - Adopt higher order lifetime types

  tyr:
   - define register blocks
   - add shmem backed GEM objects
   - adopt higher order lifetime types
   - move clock cleanup into Drop

  radeon:
   - Hawaii SMU fixes
   - CS parser fix
   - use struct drm_edid instead of edid

  amdxdna:
   - export per-client BO memory via fdinfo
   - AIE4 device support
   - support medium/lower power modes
   - expandable device heap support
   - revert read-only user-pointer BO mappings

  ivpu:
   - support frequency limiting

  panthor:
   - enable GEM shrinker support
   - add eviction and reclaim info to fdinfo

  v3d:
   - enable runtime PM

  mgag200:
   - support XRGB1555 + C8

  ast:
   - support XRGB1555 + C8
   - use constants for lots of registers
   - fix register handling

  imagination:
   - fence handling refactoring

  nouveau:
   - fix sched double call
   - expose VBIOS on GSP-RM systems
   - add GA100 support

  virtio:
   - add VIRTIO_GPU_F_BLOB_ALIGNMENT flag
   - add deferred mapping support

  gud:
   - add RCade Display Adapter

  hibmc:
   - fix no connectors usage

  mediatek:
   - hdmi: convert error handling
   - simplify mtk_crtc allocation

  exynos:
   - move fbdev emulation to drm client buffers
   - use drm format helpers for geometry/size
   - adopt core DMA tracking
   - fix framebuffer offset handling

  renesas:
   - add RZ/T2H SOC support

  versilicon:
   - add cursor plane support

  tegra:
   - use drm client for framebuffer"

* tag 'drm-next-2026-06-17' of https://gitlab.freedesktop.org/drm/kernel: (1731 commits)
  dma-buf: move system_cc_shared heap under separate Kconfig
  accel/amdxdna: Clear sva pointer after unbind
  agp/amd64: Fix broken error propagation in agp_amd64_probe()
  accel/amdxdna: Require carveout when PASID and force_iova are disabled
  drm/amdkfd: always resume_all after suspend_all
  drm/amdgpu/gfx: move fault and EOP IRQ get/put to hw_init/hw_fini
  drm/amd/display: Consult MCCS FreeSync cap only if requested & supported
  drm/amd/pm: Use strscpy in profile mode parsing
  drm/amdkfd: Fix infinite loop parsing CRAT with zero subtype length
  drm/amdkfd: fix sysfs topology prop length on buffer truncation
  drm/amdgpu: drop retry loop in amdgpu_hmm_range_get_pages
  drm/amd/pm: bound OD parameter parsing to stack array size
  drm/amd/pm: Stop pp_od_clk_voltage emit at PAGE_SIZE
  drm/amdkfd: Unwind debug trap enable on copy_to_user failure
  drm/amdgpu: validate the mes firmware version for gfx12.1
  drm/amdgpu: validate the mes firmware version for gfx12
  drm/amdgpu: compare MES firmware version ucode for gfx11
  drm/amdkfd: Add bounds check for AMDKFD_IOC_WAIT_EVENTS
  drm/amdgpu: restart the CS if some parts of the VM are still invalidated
  drm/amd/display: use unsigned types for local pipe and REG_GET counters
  ...
 2026-06-17 10:21:00 +01:00
Dave Airlie 8205c61deb Merge tag 'drm-rust-next-2026-06-04' of https://gitlab.freedesktop.org/drm/rust/kernel into drm-next 
DRM Rust changes for v7.2-rc1

- Driver Core (shared via signed tag dd-lifetimes-7.2-rc1):

  - Introduce Higher-Ranked Lifetime Types (HRT) for Rust device
    drivers, allowing driver structs to hold device resources like
    pci::Bar and IoMem directly with a lifetime tied to the binding
    scope, removing the need for Devres indirection and ARef<Device>.

  - Replace drvdata() with scoped registration data on the auxiliary
    bus, using the new ForLt trait to thread lifetimes through
    registrations. Remove drvdata() and driver_type.

- DRM:

  - Add GPUVM immediate mode abstraction for Rust GPU drivers:
    - In immediate mode, GPU virtual address space state is updated
      during job execution (in the DMA fence signalling critical path),
      keeping the GPUVM and the GPU's address space always in sync.

    - Provide GpuVm, GpuVa, and GpuVmBo types for managing address
      spaces, virtual mappings, and GEM object backing respectively.

    - Provide split-merge map/unmap operations that handle partial
      overlaps with existing mappings.

    - drm_exec integration for dma_resv locking and GEM object
      validation based on the external/evicted object lists are not
      yet covered and planned as follow-up work.

  - Introduce DeviceContext type state for drm::Device, allowing
    drivers to restrict operations to contexts where the device is
    guaranteed to be registered (or not yet registered) with userspace.

  - Add FEAT_RENDER flag to the Driver trait for render node support.

- Nova:

  - Hopper/Blackwell enablement:
    - Add GPU identification and architecture-based HAL selection for
      Hopper (GH100) and Blackwell (GB100, GB202).

    - Implement the FSP (Foundation Security Processor) boot path used by
      Hopper and Blackwell, including FSP falcon engine support, EMEM
      operations, MCTP/NVDM message infrastructure, and FSP Chain of
      Trust boot with GSP lockdown release.

    - Add support for 32-bit firmware images and auto-detection of
      firmware image format.

    - Add architecture-specific framebuffer, sysmem flush, PCI config
      mirror, DMA mask, and WPR/non-WPR heap sizing.

  - GSP boot and unload:
    - Refactor the GSP boot process into a chipset-specific HAL,
      keeping the SEC2 and FSP boot paths separated cleanly.

    - Implement proper driver unload: send UNLOADING_GUEST_DRIVER
      command, run Booter Unloader and FWSEC-SB upon unbinding, and run
      the unload bundle on Gsp::boot() failure. This removes the need
      for a manual GPU reset between driver unbind and re-probe.

  - GA100 support:
    - Add support for the GA100 GPU, including IFR header detection and
      skipping, correct fwsignature selection, conditional FRTS boot,
      and documentation of the IFR header layout.

  - VBIOS hardening and refactoring:
    - Harden VBIOS parsing with checked arithmetic, bounds-checked
      accesses, and FromBytes-based structure reads throughout the FWSEC
      and Falcon data paths. Simplify the overall VBIOS module
      structure.

  - HRT adoption:
    - Use lifetime-parameterized pci::Bar directly, replacing the
      Arc<Devres<Bar0>> indirection. Replace ARef<Device> with &'bound
      Device in SysmemFlush and the GSP sequencer. Separate the driver
      type from driver data.

  - Misc:
    - Rename module names to kebab-case (nova-drm, nova-core).

    - Require little-endian in Kconfig, making the existing assumption
      explicit.

- Tyr:

  - Define comprehensive typed register blocks for GPU_CONTROL,
    JOB_CONTROL, MMU_CONTROL (including per-address-space registers),
    and DOORBELL_BLOCK using the kernel register!() macro. This replaces
    manual bit manipulation with typed register and field accessors.

  - Add shmem-backed GEM objects and set DMA mask based on GPU physical
    address width.

  - Adopt HRT: separate driver type from driver data, and use IoMem
    directly instead of Devres for register access during probe.

  - Move clock cleanup into a Drop implementation.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: "Danilo Krummrich" <dakr@kernel.org>
Link: https://patch.msgid.link/DJ0IF39U9ETK.PCCUO7ZEQ4S0@kernel.org
 2026-06-05 09:13:12 +10:00
Dave Airlie 5ebf57fb7c Merge tag 'drm-xe-next-2026-05-28' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next 
Driver Changes:
- drm/xe: Move xe_uc_fw_abi.h to abi/ (Michal Wajdeczko)
- drm/xe: Restore IDLEDLY regiter on engine reset (Balasubramani Vivekanandan)
- drm/xe/pm: Do early initialization in init_early() (Michal Wajdeczko)
- drm/xe/pm: Don't access device in init_early() (Michal Wajdeczko)
- drm/xe: Separate early xe_device initialization (Michal Wajdeczko)
- drm/xe: Move xe->info.devid|revid initialization (Michal Wajdeczko)
- drm/xe: Move xe->info.force_execlist initialization (Michal Wajdeczko)
- drm/xe: Drop unused param from xe_device_create() (Michal Wajdeczko)
- drm/xe: Use raw device ID to find sub-platform descriptor (Michal Wajdeczko)
- drm/xe: Assign queue name in time for drm_sched_init (Tvrtko Ursulin)
- drm/xe/rtp: Implement a structured parser for rule matching (Gustavo Sousa)
- drm/xe/rtp: Fully parse the ruleset (Gustavo Sousa)
- drm/xe/rtp: Extract rule_match_item() (Gustavo Sousa)
- drm/xe/rtp: Do not break parsing when missing context (Gustavo Sousa)
- drm/xe/rtp: Don't short-circuit to false in or-yes case (Gustavo Sousa)
- drm/xe/rtp: Drop rule matching cases from rtp_to_sr_cases and rtp_cases (Gustavo Sousa)
- drm/xe/rtp: Write kunit test cases specific for rule matching (Gustavo Sousa)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Hellstrom <thomas.hellstrom@linux.intel.com>
Link: https://patch.msgid.link/ahg7tgWh8djEngjM@fedora
 2026-06-03 08:59:08 +10:00
Danilo Krummrich e2b773fb7b Merge remote-tracking branch 'drm/drm-next' into drm-rust-next 
Backmerge to pull in commit 838d852da8 ("rust: allow
`clippy::collapsible_match` globally"), in order to get rid of spurious
warnings messing with developer tooling.

Signed-off-by: Danilo Krummrich <dakr@kernel.org>
 2026-05-28 21:48:11 +02:00
Michal Wajdeczko 637c8e3a52 drm/xe: Move xe_uc_fw_abi.h to abi/ 
We aim to keep all pure ABI headers in the abi/ folder, but
somehow we missed this file.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/20260527112608.22448-1-michal.wajdeczko@intel.com
 2026-05-27 21:28:01 +02:00
Eliot CourtneyandDanilo Krummrich c70fe8b2ba gpu: nova-core: vbios: move constants and functions to be associated 
Move constants and functions to be inside the impls of the types they
are related to. This makes it more obvious what each type and value is
for.

Signed-off-by: Eliot Courtney <ecourtney@nvidia.com>
Link: https://patch.msgid.link/20260525-fix-vbios-v5-21-e5e455251537@nvidia.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
 2026-05-25 20:18:08 +02:00
Dave Airlie 1f863fe673 Merge tag 'drm-intel-next-2026-05-14' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next 
- A Revert of a Kconfig patch that broke some builds (Jani)
- New fb_pin abstraction for xe and i915 fb transparent handling (Ville, Tvrtko)
- Skip inactive MST connectors on HDCP cases (Suraj)
- Reduce redundant intel_panel_fixed_mode (Ankit)
- Some general fixes (Imre, Chaitanya)
- Reorganize display documentation (Jani)
- Start switching to display specific reg types (Jani)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/agXbLMtMECnKy-YV@intel.com
 2026-05-15 15:37:16 +10:00
Dave Airlie 15342d4aeb Merge tag 'drm-misc-next-2026-05-14' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next 
drm-misc-next for v7.2-rc1:

UAPI Changes:
- Update fourcc descriptions of BG(R) floating formats.
- Add deferred mapping support to virtio.

Cross-subsystem Changes:
- Update lontium lt9211 bindings.

Core Changes:
- Bugfixes and cleanups to pagemap, dp/mst.
- Add lockdep annotations to gpu buddy manager.
- Updates to drm/dp for PR + VRR.
- Improve documentation's table of contents.
- Bump fpfn and lpfn in ttm to 64-bits.

Driver Changes:
- Assorted bugfixes, cleanups and updates to panthor, nouveau, qaic,
  hisilicon.
- Add support for CMN N116BCN-EA1, CMN N140HCA-EEK, IVO M140NWFQ R5, IVO
  R140NWFW R0, BOE NT140*, BOE NV133FHM-N4F, AUO B140*, AUO B133HAN06.6 and AUO B116XTN02.3 eDP panels.
- More implementation of AIE4 in amdxdna.
- Update panels to use refcounts instead of devm_kzalloc to make
  drm_panel_init static.
- Add support for the RCade Display Adapter to gud.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patch.msgid.link/98788814-e462-4950-bb2a-ea493c30d0c0@linux.intel.com
 2026-05-15 12:14:25 +10:00
Jani Nikula e0388b2961 Documentation/gpu/rfc: fix toctree 
Just one toctree is enough. The .rst suffixes are superfluous in the
toctree. Fix indent. Add missing newline at the end of the file.

Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/c9678a78749a71cf86941f37116232dbc7c23b5f.1778238671.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
 2026-05-13 11:07:12 +03:00
Jani Nikula a585763337 Documentation/gpu: add some tables of contents to large documents 
Some of the GPU documentation pages are quite long, with various levels
of details. Add document internal tables of contents to the larger
documents to make them easier to navigate.

The index.rst in the sub-directories have toctrees, which provide
similar overviews.

Fix one missing newline at the end of drm-uapi.rst while at it,
primarily because rst should have it, and secondarily because my editor
rst mode refuses to save the file without it.

Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/e3f9357c0e8198cc48e69e2a3b8ca072c7ab92ca.1778238671.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
 2026-05-13 11:07:12 +03:00
Jani Nikula 393aacfa4c Documentation/gpu: limit main toctree depth to 2 
The main GPU documentation toctree has no limit to the toctree depth,
which means the main GPU index page recursively includes all the
headings in all of GPU documentation in the single table of
contents. This makes getting any kind of overview of the documentation
really difficult.

Limit the main toctree depth to 2 i.e. show at most two levels of
headings.

Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/cddd2d11c104132801510e3ab4e4b9ef3ea9cb6d.1778238671.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
 2026-05-13 11:07:12 +03:00
Perry YuanandAlex Deucher aa86e750d0 Documentation/amdgpu: Add documentation for Peak Tops Limiter (PTL) sysfs interface 
The PTL (Peak Tops Limiter) feature exposes per-GPU sysfs files under
/sys/class/drm/cardX/device/ptl/ to allow users to enable or disable PTL,
configure preferred data formats, and query supported formats. The usage
of these sysfs files is not always obvious, so add documentation to
describe their purpose and provide concrete usage examples.

V3 changes:
 * format show will display preferred formats instead of N/A (Alex)

Signed-off-by: Perry Yuan <perry.yuan@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Yifan Zhang <yifan1.zhang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
 2026-05-11 15:55:55 -04:00
Jani Nikula 158fcf1b39 Documentation/gpu: add remaining DOC: comments to Intel display documentation 
Not all of the overview DOC: comments in the display driver are
incorporated into the documentation. Add the missing ones, including
some function documentation.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/589c46cf9a46763f4fbb7e1756656e6d71ba1431.1778235406.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
 2026-05-11 10:30:13 +03:00
Jani Nikula bd30515d20 Documentation/gpu: use === for Intel display section heading underlines 
Prefer to use === instead of --- for top level section heading
underlines to allow using the latter for sub-headings later.

While at it, fix the underline lenghts where needed.

Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/f49968792220ca3ff24efde813550850340d092e.1778235406.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
 2026-05-11 10:30:13 +03:00
Jani Nikula 9317446029 Documentation/gpu: add dedicated documentation for Intel display 
Nowadays, the display support for drm/i915 and drm/xe is shared between
the drivers, even though the code is located under drm/i915/display.

The drm/i915 documentation has everything, including display topics, in
one huge page, while the drm/xe documentation is well-organized but
hardly mentions display. It's not great, to put it mildly.

Split out the Intel display documentation to a dedicated directory,
Documentation/gpu/intel-display. Also directly split the
functionality/feature documentation to dedicated pages to keep the main
index page high level and readable. We'll want to organize this further,
but just sort them alphabetically for starters.

Drop the boilerplate documentation sections that don't actually document
anything.

Cross-reference drm/i915, drm/xe, and intel-display.

Tested-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/21bfa7777eb0926eadd309d4c6f5c9cf48405cf0.1778235406.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
 2026-05-11 10:30:13 +03:00
Dave Airlie f96538285c Merge tag 'drm-misc-next-2026-05-07' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next 
drm-misc-next for v7.2-rc1:

UAPI Changes:
- Support medium/low power modes in amdxdna.
- Support limiting frequency in ivpu.
- Document license for drm core uAPI headers.
- Add the following DRM formats: P230, Y7, XYYY2101010, T430,
  XVUY210101010.

Cross-subsystem Changes:
- Add and improve dt-bindings.
- Remove unused dma-fence-array's signal_on_any support.

Core Changes:
- Do not call drop_master on file close if not master.
- Convert drm-bridge and drm/atomic to use drm_printf_indent.
- Remove the extra call to drm_connector_attach_encoder after
  drm_bridge_connector_init().
- Assorted docbook updates.

Driver Changes:
- Bugfixes in amdxdna, ivpu, mipi-dsi, imagination, nouveau, panthor,
  bridge/analogix_dp, ipv3, lontium-lt8912b, verisilicon, tve200,
  etnaviv, panel/focaltech-ota7290b, panel/jadard-jd9365da-h3,
  bridge/ite-it6263, renesas, xlnx, bridge/cdns-dsi, gma500,
  bridge/microchip-lvds, mgag200.
- Add support for MStar TSUMU88ADT3-LF-1 bridge.
- Add support for WaveShare 7, Novatek NT35532, Startek KD070HDFLD092,
  ChipWealth CH13726A AMOLED, Team Source Display TST070WSNE-196C,
  Displaytech DT050BTFT-PTS panels.
- Improve mipi-dsi shutdown and convert a panasonic panel to use the
  mipi-dsi wrappers.
- Allowing dumping vbios over debugfs in GSP-RM mode.
- Update maintainers for ivpu, add reviewer for drm-bridge code
  and update maintainers for LT8912B DRM HDMI bridge.
- Add test pattern support to bridge/ti-sn65dsi83.
- Convert vmwgfx to vblank timers.
- Add power management to sysfb drm drivers to allow suspend/resume.
- Support the aforementioned new drm formats in xlnx/qynqmp.
- Fix panel Kconfig dependencies.
- Add carveout support for debugging and bringup to amxdna.
- Add support for long command tx via videobuffer in bridge/tc358768.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patch.msgid.link/f73f342d-6efb-416d-81b0-1716bdd98d5f@linux.intel.com
 2026-05-08 14:16:04 +10:00
Maxime Ripard 9865948b87 Merge drm/drm-next into drm-misc-next 
Merge drm-next to bring the drm_atomic_state renaming patch.

Signed-off-by: Maxime Ripard <mripard@kernel.org>
 2026-05-07 16:17:01 +02:00
Dave Airlie bc0400e6f4 Merge tag 'amd-drm-next-7.2-2026-05-06' of https://gitlab.freedesktop.org/agd5f/linux into drm-next 
amd-drm-next-7.2-2026-05-06:

amdgpu:
- GFX9 fixes
- Hawaii SMU fixes
- SDMA4 fix
- GART fixes
- Userq fixes
- Finish support for using multiple SDMA queues for TTM operations
- SWSMU updates
- Misc cleanups and fixes
- GC 12.1 updates
- RAS updates
- SMU 15.0.8 updates
- DCN 4.2 updates
- DC type conversion fixes
- Enable DC power module
- Replay/PSR updates
- SMU 13.x updates
- Compute queue quantum MQD updates
- ASPM fix
- GPUVM fixes
- DCE 6 fixes
- Align VKMS with common implementation
- RDNA 4 fix
- DC analog support fixes
- UVD 3 fixes
- TCC harvesting fixes for SI
- GC 11 APU module reload fix
- NBIO 6.3.2 support
- IH 7.1 updates
- DC cursor fixes
- VCN user fence fixes
- JPEG user fence fixes
- DC support for connectors without DDC
- Prefer ROM BAR for default VGA device
- DC bandwidth fixes

amdkfd:
- GPUVM TLB flush fix
- Hotplug fix
- Boundary check fixes
- Misc cleanups and fixes
- SVM fixes
- CRIU fixes

radeon:
- Hawaii SMU fixes
- Misc cleanups and fixes

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patch.msgid.link/20260506164726.1733646-1-alexander.deucher@amd.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
 2026-05-07 09:50:50 +10:00
Dave Airlie 5077f45ecd Merge tag 'drm-misc-next-2026-04-20' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next 
drm-misc-next for v7.1-rc1:

UAPI Changes:
- Expose per-client BO memory usage via fdinfo in amdxdna. (Hou)
- Change the default priority of drm scheduler to fair. (Tvrtko)

Cross-subsystem Changes:
- Revert hugetlb support in udmabuf. (Gunthorpe)
- Fix error in udmabuf with CONFIG_DMA_API_DEBUG(/ _SG). (Gavrilov)
- Add Docbook for DRM_IOCTL_SYNCOBJ_EVENTFD, (Ser)
  clarify drm_bridge_get/put. (Tvrtko)
- Change signature of drm_connector_attach_hdr_output_metadata_property. (Canal)
- Use IOVA allocations in gpusvm and pagemap APIs. (Brost)
- Fix tracepoints vs dma-fence lifetime. (Tvrtko)
- Convert st-dma*.c tests to use kunit. (Gunthorpe)

Core Changes:
- Deduplicate counter and timestamp retrieval in vblank code. (Ville)
- Parse AMD VSDB v3 in CTA extension blocks, and use it in amdgpu. (Chen)
- Prevent bridge and encoder chain changes at inopportune times. (Ceresoli)
- Map the run queue 1:1 to the drm scheduler. (Tvrtko)

Driver Changes:
- Assorted bugfixes and (documentation) updates to rockchip, bridge/synopsis,
  panfrost, tidss, accel/qaic, tilcdc, vc4, ast, imagination, panthor,
  renesas, accel/amdxdna, msxfb, bridge/imx8mp, nouveau.
  bridge/analogix_dp, bridge/exynos_dp, omap.
- Add support for CSW PNB601LS1-2, LGD LP116WHA-SPB1, panels.
- Add support for a lot of waveshare panels (Baryshkov)
- Support for AIE4 devices in accel/wamdxdna. (Zhang)
- Enable support for GEM shrinking in panthor. (Goel/Brezillon)
- Runtime Power Management is added to v3d. (Canal)
- Allow panel probing and use the panel bridge helper in analogix_dp. (Ding)
- Support XRGB1555 and C8 in mgag and XRGB1555 in ast. (Zimmermann)

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patch.msgid.link/bf31b1a1-951b-4f60-b226-22e8c083697d@linux.intel.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
 2026-05-06 10:12:25 +10:00
Laurent PinchartandTomi Valkeinen a1b6cf8e5e drm: uapi: Use SPDX in DRM core uAPI headers 
The DRM core uAPI headers are licensed under the MIT license, and carry
copies of the license with slight variations. Replace them with SPDX
headers.

Following a discussion with Simona Vetter on this topic, add a
clarification in the drm-uapi.rst file that independent closed-source
userspace implementations of software using the DRM uAPI are accepted,
as allowed by the MIT license.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Simona Vetter <simona.vetter@ffwll.ch>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: https://patch.msgid.link/20260407104951.1781047-1-laurent.pinchart+renesas@ideasonboard.com
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
 2026-05-04 17:14:18 +03:00
Dave Airlie 27268b872e Merge tag 'drm-xe-next-2026-04-30' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next 
UAPI Changes:

- Debugfs multi-LRC engine info (Xin Wang, 2 commits)
  Expose multi-LRC engine classes in the debugfs engine info output
  and improve the output readability.

- drm/drm_ras: Add clear-error-counter netlink command to drm_ras

Cross-subsystem Changes:

Core Changes:

- drm/gpusvm: Reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges
- drm/i915/display: switch to including common step file directly

Driver Changes:

- Engine initialization cleanup (Matt Roper, 10 commits)
  Clean up engine initialization code inherited from i915 by moving
  hardware programming (CCS enablement, HWSTAM, GFX_MODE, BLIT_CCTL,
  STOP_RING) into the RTP infrastructure.  This makes the programming
  visible and verifiable via debugfs, and applies consistently across
  both normal and execlist init paths.  Also fixes the name/definition
  of GFX_MODE, marks BCS engines as belonging to the GT forcewake
  domain, and drops the now-unused xe_hw_engine_mmio_write32() helper.

- PF fair scheduling auto-provisioning (Michal Wajdeczko, 13 commits)
  Fix several corner cases in SR-IOV PF scheduling policy provisioning,
  then auto-provision PF and all VFs with 16ms execution-quantum and
  preemption-timeout defaults.  This prevents a VF from monopolizing
  the GPU by submitting workloads without gaps, without requiring the
  user to configure sysfs manually.

- System Controller support for CRI/Xe3p (Anoop Vijay + Raag Jadav, 10 commits)
  Add xe_sysctrl infrastructure for communicating with the System
  Controller firmware entity on CRI/Xe3p discrete GPU platforms via a
  mailbox interface.  Includes type definitions, register definitions,
  mailbox communication, initialization, power management, interrupt
  handling, and event dispatch.  Builds on this to add initial RAS
  correctable error handling, using sysctrl interrupts to receive
  threshold-crossed events.

- PXP state machine fixes (Daniele Ceraolo Spurio, 4 commits)
  Fix PXP state machine handling: reject PXP sessions on PTL platforms
  with older GSC firmware that does not support it, fix the restart
  flag not being cleared after jumping back in pxp_start, remove
  incorrect handling of an impossible state during suspend, and clean
  up termination status on failure.

- Reset/wedge/unload corner case fixes (Zhanjun Dong + Matthew Brost, 5 commits)
  Fix memory leaks and fence signal failures that occurred during GPU
  reset, device wedging, and driver unload by forcefully tearing down
  remaining exec queues in GuC submit fini, always killing queues in
  pause/abort, and triggering queue cleanup when not in wedged mode 2.
  Also ensures GuC CT state transitions via STOP before DISABLED.

- Wedge path memory allocation fixes (Matthew Brost, 3 commits)
  Avoid GFP_KERNEL allocations in xe_device_declare_wedged(), which
  runs in the DMA-fence signaling path.  Also drops the
  guc_submit_wedged_fini devm registration from xe_guc_submit_wedge()
  to clean up the wedge shutdown sequence.

- PAT type cleanup and invalid index hardening (Xin Wang, 3 commits)
  Standardize pat_index fields to u16 across the driver, default
  XE_CACHE_NONE_COMPRESSION to XE_PAT_INVALID_IDX (matching
  WB_COMPRESSION), and introduce xe_cache_pat_idx() — a macro helper
  that validates cache_mode bounds and asserts on invalid PAT indices
  before returning the index.

- Reject unsafe PAT indices for CPU cached memory (Jia Yao, 2 commits)
  Reject incoherent (coh_none) PAT indices for CPU cached memory in
  both the madvise ioctl and vm_bind with CPU_ADDR_MIRROR flag, closing
  a security gap where the GPU could bypass CPU caches and observe
  stale or sensitive data.

- OA improvements for CRI device memory (Ashutosh Dixit, 3 commits)
  Move OA buffer access to the xe_map layer to support both system and
  device memory (required for CRI), switch OA buffer mmap to use
  drm_gem_mmap_obj, and implement workaround Wa_14026633728.

- xe_drm.h documentation fixes (Shuicheng Lin, 6 commits)
  Fix multiple documentation issues in the xe_drm.h UAPI header:
  typos, spelling errors, grammar, wrong names and references,
  kernel-doc cross-reference syntax, and broken code examples.

- kernel-doc syntax fixes in xe headers (Shuicheng Lin, 4 commits)
  Fix kernel-doc syntax issues across xe header files: missing '@'
  prefixes on member tags, stale/mismatched member tags, comment
  syntax errors, and type/parameter name mismatches in references.

- Buffer object and DMA-buf resource leak fixes (Shuicheng Lin, 4 commits)
  Fix resource leaks on error paths: DMA-buf attachment leak in
  xe_gem_prime_import(), BO leak in xe_dma_buf_init_obj() on
  allocation failure, and BO leaks in xe_bo_init_locked() on GGTT
  flag validation and unaligned size validation failures.

- Include guard cleanup (Shuicheng Lin, 5 commits)
  Fix and standardize include guards across xe header files: normalize
  double-underscore guards to single, add missing leading/trailing
  underscores, add missing _H suffixes, and add guards to previously
  unprotected headers.

- VF CCS memory pool (Satyanarayana K V P, 2 commits)
  Switch VF CCS read/write operations from the DRM sub-allocator to
  DRM mm, fixing allocation failures in fence-disabled mode where
  the sub-allocator's hole cursor assumption breaks.  Also introduces
  a general BO-backed memory pool with shadow support using drm_mm.

- i915/xe step definition unification (Jani Nikula, 3 commits)
  Complete the migration to the shared intel_step header: switch xe
  from its own xe_step enum to the shared intel_step naming and
  definitions, and update i915 display code to include the common
  step header directly.

- Xe3p GT tuning fixes (3 commits)
  Three Xe3p GT tuning corrections: fix the register offset for
  GAMSTLB_CTRL, stop applying the CCCHKNREG1 tuning from Xe3p onward
  (no longer needed), and mark ROW_CHICKEN5 as a masked register.

- Forcewake cleanup in GT and GuC PC (Raag Jadav, 3 commits)
  Drop a redundant forcewake reference in xe_gt, reorder forcewake
  usage in xe_guc_pc_fini_hw() to avoid a redundant hold, and convert
  xe_guc_pc_stop() to void since it can no longer fail.

- SVM garbage collector fix on close (Matthew Brost, 2 commits)
  Disable the SVM garbage collector work item when an SVM is closed
  to prevent use-after-free when the GC fires after the SVM is freed.

- Admin-only PF mode (Satyanarayana K V P, 2 commits)
  Derive an "admin-only PF" mode flag from xe_device state instead of
  using a local flag, and restrict device query responses when running
  in admin-only PF mode to avoid exposing internal state.

- Enable hwmon energy attributes and accepted power limit for CRI (2 commits)
  Enable energy consumption hwmon attributes for the CRI platform and
  add support for reading the accepted (sustained) power limit via
  hwmon.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Hellstrom <thomas.hellstrom@linux.intel.com>
Link: https://patch.msgid.link/afNSeZJHC3X2m3-N@fedora
 2026-05-04 18:22:33 +10:00
Maxime RipardandDave Airlie d85dfb495f Documentation: drm: Remove drm_atomic_state rename entry 
We just did that item so we can remove it.

Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patch.msgid.link/20260427-drm-drm-atomic-update-v4-2-c0e713bfdf25@kernel.org
 2026-05-04 14:05:04 +10:00
Maxime RipardandDave Airlie 5164f7e7ff drm: Rename struct drm_atomic_state to drm_atomic_commit 
The KMS framework uses two slightly different definitions for the state
concept. For a given object (plane, CRTC, encoder, etc., so
drm_$OBJECT_state), the state is the entire state of that object.
However, at the device level, drm_atomic_state refers to a state update
for a limited number of objects.

Thus, drm_atomic_state isn't the entire device state, but only the full
state of some objects in that device. This has been an endless source of
confusion and thus bugs.

We can rename the drm_atomic_state structure to drm_atomic_commit to
make it less confusing.

This patch was created using:

rg -l drm_atomic_state | \
	xargs sed -i 's/drm_atomic_state/drm_atomic_commit/g; s/drm_atomic_commit_helper/drm_atomic_state_helper/g'
mv drivers/gpu/drm/tests/drm_atomic_state_test.c drivers/gpu/drm/tests/drm_atomic_commit_test.c

Acked-by: Simona Vetter <simona.vetter@ffwll.ch>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patch.msgid.link/20260427-drm-drm-atomic-update-v4-1-c0e713bfdf25@kernel.org
 2026-05-04 14:05:04 +10:00
Timur TabiandAlexandre Courbot d8198971dc Documentation: gpu: nova: document the IFR header layout 
Init-from-ROM (IFR) is a special GPU feature used for power management
on some Nvidia GPUs.  It references data in the VBIOS for its operation,
but for drivers the important piece is the header that precedes the
VBIOS PCI Expansion ROM.  Parsing VBIOS is necessary to boot GSP-RM on
Turing, Ampere, and Ada GPUs.

Most such GPUs do not need to parse the IFR header in order to find the
VBIOS, but the Nvidia GA100 is the exception.  GA100 lacks a display
engine, so the PRAMIN method (which reads the VBIOS from VRAM via
display hardware) is unavailable, forcing the driver to read the ROM
directly via PROM.  On other similar GPUs, either PRAMIN succeeds before
PROM is tried, or the IFR hardware has already applied the ROM offset
so that PROM reads transparently skip the IFR header.

Note that GH100 also does not have a display engine, but it uses a
completely different method to boot GSP-RM.

This information is derived from NVIDIA's open-source GPU kernel module
driver (aka OpenRM), specifically the NV_PBUS_IFR_FMT_FIXEDx definitions
in dev_bus.h and the parsing logic in s_romImgFindPciHeader_TU102().

Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Reviewed-by: Joel Fernandes <joelagnelf@nvidia.com>
Link: https://patch.msgid.link/20260408142132.3911466-1-ttabi@nvidia.com
[acourbot: fix TOTAL_DATA_SIZE definition.]
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
 2026-04-29 08:13:55 +09:00
Hyeonjin KimandJonathan Corbet 8cfbcf36f9 docs: fix typos in kernel documentation 
reinitalizes => reinitializes
unpriviledged => unprivileged
sub-struture => sub-structure

Signed-off-by: Hyeonjin Kim <fruitworld.planet@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260415001204.6428-1-fruitworld.planet@gmail.com>
 2026-04-27 04:03:52 -06:00