linux.git/Documentation/gpu, branch master Linux kernel source tree Merge tag 'drm-rust-next-2026-08-08' of https://gitlab.freedesktop.org/drm/rust/kernel into drm-next 2026-08-10T04:48:11+00:00 Dave Airlie airlied@redhat.com 2026-08-10T04:47:20+00:00 29daacacf4cd84e6917f09de6a99fb170071c14c DRM Rust changes for v7.3-rc1 - I/O (shared from driver-core tree via signed tag rust-io-7.3-rc1): - Rework of I/O types: make I/O regions typed (with a dynamically-sized Region type for the existing untyped case), create view types representing subregions of a mapped I/O region, and add io_project!() for safely creating subviews. - Split Io into a base trait (IoBase) and an extension trait (Io) with a blanket implementation, preventing implementers from overriding provided methods that unsafe code relies on. - Add a SysMem backend for shared system memory with volatile access, and make Coherent implement Io via an I/O view type. Add copying methods (memcpy_{from,to}io). - Replace dma_read!/dma_write! with io_read!/io_write!; drop the old macros. - DRM: - RegistrationGuard and RegistrationData: - Rework DeviceContext typestates: rename Uninit to Normal, add an Ioctl context, restrict AlwaysRefCounted to Normal for both Device and GEM Object, and establish a Deref chain from Registered to Normal. - Introduce RegistrationGuard, a guard representing a drm_dev_enter/exit SRCU critical section that proves the DRM device is registered, which implies the parent bus device is still bound. - Add RegistrationData as a GAT on drm::Driver. The data does not outlive driver unbind, so it can capture lifetime-annotated device resources and references. Accessible through the guard via a closure with HRTB lifetime. - Wrap ioctl dispatch in RegistrationGuard (returning ENODEV if unplugged) and pass registration data to handlers. - Add Driver::ParentDevice associated type. - Fix unbounded lifetimes in ioctl handler arguments. - Fix a race in drm_dev_register() where a partial failure allowed in-flight ioctls to proceed while the error path tore down resources. - GEM shmem: add DmaResvGuard helper, vmap functions, and sg_table() accessor. - GPUVM: require Send + Sync for the driver's associated data, implement Send and Sync for GpuVaAlloc and GpuVmBo, add SmContext lifetime bound, update DriverGpuVm for DeviceContext. - Nova: - nova-core / nova-drm cross-crate dependency: - Build nova-core and nova-drm from drivers/gpu/Makefile for build ordering, export nova-core Rust symbols for nova-drm. Workaround until the build system supports Rust cross-crate dependencies natively. - GSP boot process consolidation: - Introduce GspBootContext to bundle common boot parameters, replacing per-argument threading. Separate context and GPU lifetimes to support mutable borrows of GPU subdevices. - Turn FWSEC execution into a HAL method, make FWSEC bootloader usage a property of the TU102 HAL (GA102+ gets its own instance with it disabled). Move firmware file selection to the GSP HAL. - Store the Fsp instance in Gpu (lifetime tied to the GPU, not just a single boot invocation). Move GSP state and unload bundle into a pinned subobject for reliable teardown on partial init failure. - Boot GSP with vGPU enabled: - Add PRC (Product Reconfiguration Control) protocol to query device configuration from the FSP. Read vGPU mode, detect and store vGPU state. - Set RMSetSriovMode registry entry and reserve the larger WPR2 heap required when vGPU is enabled. - Build SetRegistry entries dynamically. - TLV firmware image format: - Add a TLV (type-length-value) parser for the new firmware image format. TLV files use unversioned filenames with a .tlv suffix, start with "NVFW" magic, and contain tagged blocks with 4-byte aligned payloads. - Transition all firmware loading (booter, gsp, gen_bootloader, fsp) to TLV images. - Note: this requires a development firmware not in linux-firmware [1]; this is temporary and serves the transition to r615. - Hopper/Blackwell fixes and cleanups: - Correct FRTS vidmem offset calculation, split FbLayout into FSP and non-FSP versions, fix Blackwell flush address composition, use absolute FBHUB0 flush registers on Blackwell, use correct sysmem flush registers on Hopper. - Harden FSP messaging: limit receive allocation size, catch bogus queue pointers, ensure DMA allocation lifetimes for FMC boot and LibOS, wait for RISC-V HALTED on unload. - I/O projection adoption: - Use io_project!() for PTE array, message queues, and Falcon DMA transfer bounds checking. - Misc: - Keep unloading if FWSEC-SB fails during Turing/Ampere GSP reset. - Don't declare booter firmware for FSP chipsets. - Fix packed registry table size. - Extract and display usable FB regions from GSP. - Store bar and dev directly in Falcon, simplifying the API. - Parse VBIOS structs via zerocopy. - Convert to kernel bitfield macro, remove local one. - Move register definitions into sub-modules. - Add FSP and PRC protocol documentation. - Tyr: - Firmware loading and MCU boot: - Add a generic slot manager for dynamically allocating limited hardware slots to software seats, with lazy eviction under contention. - Add MMU support wrapping the slot manager for address-space slot allocation, with MAIR-to-MEMATTR translation. - Add GPU virtual memory (VM) support using drm_gpuvm with ARM64 LPAE Stage 1 page tables and 4KB/2MB page sizes. - Add a kernel buffer object type for internal driver allocations. - Add a parser for the Mali CSF firmware binary format. - Add MCU booting: load, parse, and map firmware sections into VM, then boot the MCU at probe(). - Cross-subsystem: - Add faux::Device type with AsBusDevice support. Allow retrieving a bound Device from a Registration. - Add device lifetime to IoPageTable. - Add Vec::zeroed method. - Add firmware::request_into_buf() to load firmware into a caller-provided buffer. - Rename dma_handle to dma_address in the DMA abstraction. - Change pci_sriov_get_totalvfs() return type to unsigned int; add Rust helper. [1] https://github.com/ttabi/linux-firmware-nova Signed-off-by: Dave Airlie <airlied@redhat.com> From: "Danilo Krummrich" <dakr@kernel.org> Link: https://patch.msgid.link/DKJQQUOS0PVO.3JPR3MYK4PDVZ@kernel.org 
DRM Rust changes for v7.3-rc1

- I/O (shared from driver-core tree via signed tag rust-io-7.3-rc1):

  - Rework of I/O types: make I/O regions typed (with a
    dynamically-sized Region type for the existing untyped case), create
    view types representing subregions of a mapped I/O region, and add
    io_project!() for safely creating subviews.

  - Split Io into a base trait (IoBase) and an extension trait (Io) with
    a blanket implementation, preventing implementers from overriding
    provided methods that unsafe code relies on.

  - Add a SysMem backend for shared system memory with volatile access,
    and make Coherent implement Io via an I/O view type.  Add copying
    methods (memcpy_{from,to}io).

  - Replace dma_read!/dma_write! with io_read!/io_write!; drop the old
    macros.

- DRM:

  - RegistrationGuard and RegistrationData:
    - Rework DeviceContext typestates: rename Uninit to Normal, add an
      Ioctl context, restrict AlwaysRefCounted to Normal for both Device
      and GEM Object, and establish a Deref chain from Registered to
      Normal.

    - Introduce RegistrationGuard, a guard representing a
      drm_dev_enter/exit SRCU critical section that proves the DRM
      device is registered, which implies the parent bus device is still
      bound.

    - Add RegistrationData as a GAT on drm::Driver. The data does not
      outlive driver unbind, so it can capture lifetime-annotated device
      resources and references. Accessible through the guard via a
      closure with HRTB lifetime.

    - Wrap ioctl dispatch in RegistrationGuard (returning ENODEV if
      unplugged) and pass registration data to handlers.

    - Add Driver::ParentDevice associated type.

  - Fix unbounded lifetimes in ioctl handler arguments.

  - Fix a race in drm_dev_register() where a partial failure allowed
    in-flight ioctls to proceed while the error path tore down
    resources.

  - GEM shmem: add DmaResvGuard helper, vmap functions, and sg_table()
    accessor.

  - GPUVM: require Send + Sync for the driver's associated data,
    implement Send and Sync for GpuVaAlloc and GpuVmBo, add SmContext
    lifetime bound, update DriverGpuVm for DeviceContext.

- Nova:

  - nova-core / nova-drm cross-crate dependency:
    - Build nova-core and nova-drm from drivers/gpu/Makefile for build
      ordering, export nova-core Rust symbols for nova-drm. Workaround
      until the build system supports Rust cross-crate dependencies
      natively.

  - GSP boot process consolidation:
    - Introduce GspBootContext to bundle common boot parameters,
      replacing per-argument threading. Separate context and GPU
      lifetimes to support mutable borrows of GPU subdevices.

    - Turn FWSEC execution into a HAL method, make FWSEC bootloader
      usage a property of the TU102 HAL (GA102+ gets its own instance
      with it disabled). Move firmware file selection to the GSP HAL.

    - Store the Fsp instance in Gpu (lifetime tied to the GPU, not just
      a single boot invocation). Move GSP state and unload bundle into a
      pinned subobject for reliable teardown on partial init failure.

  - Boot GSP with vGPU enabled:
    - Add PRC (Product Reconfiguration Control) protocol to query device
      configuration from the FSP. Read vGPU mode, detect and store vGPU
      state.
    - Set RMSetSriovMode registry entry and reserve the larger WPR2 heap
      required when vGPU is enabled.
    - Build SetRegistry entries dynamically.

  - TLV firmware image format:
    - Add a TLV (type-length-value) parser for the new firmware image
      format. TLV files use unversioned filenames with a .tlv suffix,
      start with "NVFW" magic, and contain tagged blocks with 4-byte
      aligned payloads.
    - Transition all firmware loading (booter, gsp, gen_bootloader, fsp)
      to TLV images.
    - Note: this requires a development firmware not in linux-firmware
      [1]; this is temporary and serves the transition to r615.

  - Hopper/Blackwell fixes and cleanups:
    - Correct FRTS vidmem offset calculation, split FbLayout into FSP
      and non-FSP versions, fix Blackwell flush address composition, use
      absolute FBHUB0 flush registers on Blackwell, use correct sysmem
      flush registers on Hopper.
    - Harden FSP messaging: limit receive allocation size, catch bogus
      queue pointers, ensure DMA allocation lifetimes for FMC boot and
      LibOS, wait for RISC-V HALTED on unload.

  - I/O projection adoption:
    - Use io_project!() for PTE array, message queues, and Falcon DMA
      transfer bounds checking.

  - Misc:
    - Keep unloading if FWSEC-SB fails during Turing/Ampere GSP reset.
    - Don't declare booter firmware for FSP chipsets.
    - Fix packed registry table size.
    - Extract and display usable FB regions from GSP.
    - Store bar and dev directly in Falcon, simplifying the API.
    - Parse VBIOS structs via zerocopy.
    - Convert to kernel bitfield macro, remove local one.
    - Move register definitions into sub-modules.
    - Add FSP and PRC protocol documentation.

- Tyr:

  - Firmware loading and MCU boot:
    - Add a generic slot manager for dynamically allocating limited
      hardware slots to software seats, with lazy eviction under
      contention.
    - Add MMU support wrapping the slot manager for address-space slot
      allocation, with MAIR-to-MEMATTR translation.
    - Add GPU virtual memory (VM) support using drm_gpuvm with ARM64
      LPAE Stage 1 page tables and 4KB/2MB page sizes.
    - Add a kernel buffer object type for internal driver allocations.
    - Add a parser for the Mali CSF firmware binary format.
    - Add MCU booting: load, parse, and map firmware sections into VM,
      then boot the MCU at probe().

- Cross-subsystem:

  - Add faux::Device type with AsBusDevice support. Allow retrieving a
    bound Device from a Registration.

  - Add device lifetime to IoPageTable.

  - Add Vec::zeroed method.

  - Add firmware::request_into_buf() to load firmware into a
    caller-provided buffer.

  - Rename dma_handle to dma_address in the DMA abstraction.

  - Change pci_sriov_get_totalvfs() return type to unsigned int; add
    Rust helper.

[1] https://github.com/ttabi/linux-firmware-nova

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

From: "Danilo Krummrich" <dakr@kernel.org>
Link: https://patch.msgid.link/DKJQQUOS0PVO.3JPR3MYK4PDVZ@kernel.org
gpu: nova-core: add TLV parser for firmware files 2026-08-05T23:54:12+00:00 Timur Tabi ttabi@nvidia.com 2026-07-31T20:10:12+00:00 33f40117c0c53c88536936f14f87fc06279f1f2c TLV (type, length, value) files are the new image format used by Nova to encapsulate firmware images and their metadata. Unlike the firmware files for previous versions of the firmware, TLV filenames are not versioned, and they have a .tlv suffix. Add function request_tlv() to load TLV firmware images. Add the Tlv struct and supporting types for parsing TLV firmware images. TLV files begin with a 4-byte magic header, which must be "NVFW" for Nvidia firmware files. This is followed by a sequence of blocks each containing a 4-byte ASCII tag, a 4-byte little-endian length, and a payload padded to a 4-byte boundary. Tlv::new() validates the entire image up front, so that the iterator can subsequently yield blocks without fallible parsing. Also add accessor methods for the various encoded types that will be used by the driver. Signed-off-by: Timur Tabi <ttabi@nvidia.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Tested-by: Alexandre Courbot <acourbot@nvidia.com> Link: https://patch.msgid.link/20260731201017.2580713-4-ttabi@nvidia.com [ Drop unnecessary payload.is_empty() check in Tlv::new(), use EINVAL instead of ENODATA in Tlv::get_bytes() and add a corresponding TODO comment. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org> 
TLV (type, length, value) files are the new image format used by Nova
to encapsulate firmware images and their metadata.  Unlike the firmware
files for previous versions of the firmware, TLV filenames are not
versioned, and they have a .tlv suffix.

Add function request_tlv() to load TLV firmware images.

Add the Tlv struct and supporting types for parsing TLV firmware images.
TLV files begin with a 4-byte magic header, which must be "NVFW" for
Nvidia firmware files.  This is followed by a sequence of blocks each
containing a 4-byte ASCII tag, a 4-byte little-endian length, and a
payload padded to a 4-byte boundary.

Tlv::new() validates the entire image up front, so that the iterator can
subsequently yield blocks without fallible parsing.

Also add accessor methods for the various encoded types that will be used
by the driver.

Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Link: https://patch.msgid.link/20260731201017.2580713-4-ttabi@nvidia.com
[ Drop unnecessary payload.is_empty() check in Tlv::new(), use EINVAL
  instead of ENODATA in Tlv::get_bytes() and add a corresponding TODO
  comment. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Merge tag 'drm-xe-next-2026-07-30' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next 2026-07-31T21:06:36+00:00 Dave Airlie airlied@redhat.com 2026-07-31T21:06:31+00:00 82cb10c8bc506a4d2093e0e59672fd307f549d38 - Wait on external BO kernel fences in exec IOCTL (Brost) - General clean-up (Anas) - Documentation fix (Rafael) - Add a debugfs for pcode information (Karthik) - Free madvise VMA array on L2 flush failure (Guangshuo) - Page Table related fixes (Shuicheng, Zongyao) - Improvements GuC error handling and GuC small fixes (Sk, Zhanjun, Arvind) - Add new W/As (Daniele, Harish) - GuC paging engine support (Auld) - Add and use more KLV helpers (Michal) - Balance exec queue suspend/resume (Niranjana, Thomas) - Fix BO prefetch with CONSULT_MEM_ADVISE_PREF_LOC (Himal) - SRIOV: Disable display in admin only PF mode (Satya) - Fix writable override for CRI NVM (Sasha) - Fix VF CCS attach/detach race with in-flight BO moves (Brost) - Introduce Xe Uncorrectable Error Handling (Riana) - Fix WOPCM size for LNL+ (Daniele) - Consolidate debugfs fault injection functions (Mallesh) - Multi-queue related fixes and improvements (Niranjana, Jagmeet, Shuicheng) - Add RAS GPU health indicator (Soham) - PAT related improvements (Roper, Sanjay) - NULL deref fix on migration on VF (Satya) - i2c related fix (Raag) - Fix SVM leak and clean up xe_vm_create (Shuicheng) - Drop force_probe requirement for NVL-s (Gustavo) - Optimise TT population for DONTNEED BOs (Auld) - Add page size allocation mode control and coverage (Himal, Nareshkumar) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patch.msgid.link/amt2kDVdyBK6VEyU@intel.com 
- Wait on external BO kernel fences in exec IOCTL (Brost)
- General clean-up (Anas)
- Documentation fix (Rafael)
- Add a debugfs for pcode information (Karthik)
- Free madvise VMA array on L2 flush failure (Guangshuo)
- Page Table related fixes (Shuicheng, Zongyao)
- Improvements GuC error handling and GuC small fixes (Sk, Zhanjun, Arvind)
- Add new W/As	(Daniele, Harish)
- GuC paging engine support (Auld)
- Add and use more KLV helpers (Michal)
- Balance exec queue suspend/resume (Niranjana, Thomas)
- Fix BO prefetch with CONSULT_MEM_ADVISE_PREF_LOC (Himal)
- SRIOV: Disable display in admin only PF mode (Satya)
- Fix writable override for CRI NVM (Sasha)
- Fix VF CCS attach/detach race with in-flight BO moves (Brost)
- Introduce Xe Uncorrectable Error Handling (Riana)
- Fix WOPCM size for LNL+ (Daniele)
- Consolidate debugfs fault injection functions (Mallesh)
- Multi-queue related fixes and improvements (Niranjana, Jagmeet, Shuicheng)
- Add RAS GPU health indicator (Soham)
- PAT related improvements (Roper, Sanjay)
- NULL deref fix on migration on VF (Satya)
- i2c related fix (Raag)
- Fix SVM leak and clean up xe_vm_create (Shuicheng)
- Drop force_probe requirement for NVL-s (Gustavo)
- Optimise TT population for DONTNEED BOs (Auld)
- Add page size allocation mode control and coverage (Himal, Nareshkumar)

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

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/amt2kDVdyBK6VEyU@intel.com
Merge tag 'drm-intel-next-2026-07-28' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next 2026-07-31T20:05:01+00:00 Dave Airlie airlied@redhat.com 2026-07-31T20:05:00+00:00 2b3f7c2c8dd8d710ab36f92a316f29fd37d83449 drm/i915 feature pull #2 for v7.3: Features and functionality: - Enable UHBR link rates on Thunderbolt tunneled links (Imre) - Reduce Xe3+ PM demand peak bandwidth for power savings (Vinod) - Add the blend mode property to all planes that support alpha blending (Chaitanya) - Enable pipe DMC error interrupts for display 30+ (Dibin) - Add KUnit tests for DP link config selection and fallback (Imre) Refactoring and cleanups: - Refactor DP link config selection and unify across use cases (Imre) - Unify i915 and xe display runtime PM calls (Jani) - Refactor BIOS framebuffer takeover (Ville) Fixes: - Fix HD audio on DP UHBR SST (Kai Vehmanen) - Fixes to xe driver BIOS framebuffer takeover (Ville) - Fix 2 pixels-per-clock CDCLK calculation to avoid underruns (Ville) - Fix incorrectly set VSC SDP Main Stream Attribute (Chaitanya) - Fix BPC and DSC selection for HDMI sinks (Alexander Kaplan) - Fix PCON max FRL rate selection (Alexander Kaplan) - Workaround Xe3P PSR2 screen corruption (Dibin) - Fix NVL A & B stepping vtotal setting (Suraj) - Fix xe DPT allocation paths (Maarten) - Prefer system memory instead of stolen for new framebuffers in xe (Maarten) - Fix transcoder mask sizes (John Harrison) - Clear stale UV/Y plane DDB entries on plane disable (Vinod) - Fix some DP AUX backlight control issues, again (Suraj) - Fix switching between HDCP 1.4 and 2.2 authentication (Suraj) - Remove unnecessary Xe2_LPD+ FBC plane width and surface size limits (Vinod) - Ensure non-zero DSB safe window for PTL+ (Ankit) - Fix bandwidth calculation to account for 16 DRAM channels (Uma) - Fix NV12 ceiling division for bigjoiner case (Vidya) DRM core changes: - Add Thunderbolt UHBR tunneling support (Imre) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://patch.msgid.link/cb1b5a644d75589cbcdcc8ec8160968140426439@intel.com 
drm/i915 feature pull #2 for v7.3:

Features and functionality:
- Enable UHBR link rates on Thunderbolt tunneled links (Imre)
- Reduce Xe3+ PM demand peak bandwidth for power savings (Vinod)
- Add the blend mode property to all planes that support alpha blending (Chaitanya)
- Enable pipe DMC error interrupts for display 30+ (Dibin)
- Add KUnit tests for DP link config selection and fallback (Imre)

Refactoring and cleanups:
- Refactor DP link config selection and unify across use cases (Imre)
- Unify i915 and xe display runtime PM calls (Jani)
- Refactor BIOS framebuffer takeover (Ville)

Fixes:
- Fix HD audio on DP UHBR SST (Kai Vehmanen)
- Fixes to xe driver BIOS framebuffer takeover (Ville)
- Fix 2 pixels-per-clock CDCLK calculation to avoid underruns (Ville)
- Fix incorrectly set VSC SDP Main Stream Attribute (Chaitanya)
- Fix BPC and DSC selection for HDMI sinks (Alexander Kaplan)
- Fix PCON max FRL rate selection (Alexander Kaplan)
- Workaround Xe3P PSR2 screen corruption (Dibin)
- Fix NVL A & B stepping vtotal setting (Suraj)
- Fix xe DPT allocation paths (Maarten)
- Prefer system memory instead of stolen for new framebuffers in xe (Maarten)
- Fix transcoder mask sizes (John Harrison)
- Clear stale UV/Y plane DDB entries on plane disable (Vinod)
- Fix some DP AUX backlight control issues, again (Suraj)
- Fix switching between HDCP 1.4 and 2.2 authentication (Suraj)
- Remove unnecessary Xe2_LPD+ FBC plane width and surface size limits (Vinod)
- Ensure non-zero DSB safe window for PTL+ (Ankit)
- Fix bandwidth calculation to account for 16 DRAM channels (Uma)
- Fix NV12 ceiling division for bigjoiner case (Vidya)

DRM core changes:
- Add Thunderbolt UHBR tunneling support (Imre)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patch.msgid.link/cb1b5a644d75589cbcdcc8ec8160968140426439@intel.com
Merge remote-tracking branch 'drm/drm-next' into drm-rust-next 2026-07-28T09:38:35+00:00 Danilo Krummrich dakr@kernel.org 2026-07-28T09:38:35+00:00 0755a4e3e809610a14befc9ad28d35e2e460da68 Backmerge to pull in commit 21fcb222f0d1 ("drm: Remove DRIVER_GEM_GPUVA feature flag"), which a Tyr patch series depends on. Signed-off-by: Danilo Krummrich <dakr@kernel.org> 
Backmerge to pull in commit 21fcb222f0d1 ("drm: Remove DRIVER_GEM_GPUVA
feature flag"), which a Tyr patch series depends on.

Signed-off-by: Danilo Krummrich <dakr@kernel.org>
drm/xe/xe_ras: Add RAS GPU health indicator 2026-07-17T04:48:12+00:00 Soham Purkait soham.purkait@intel.com 2026-07-16T07:36:02+00:00 53a7115f9862f30ee748c1e1c5e6398ffa092672 Add a sysfs interface that reports the current GPU health state and lets admin users and management tools update it but is readable by all users. Requests are routed through the sysctrl mailbox. The interface is present only on platforms that support the GPU health indicator. The interface is a single read/write file at the device level: $ cat /sys/.../device/gpu_health ok $ echo critical > /sys/.../device/gpu_health $ cat /sys/.../device/gpu_health critical Signed-off-by: Soham Purkait <soham.purkait@intel.com> Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: Raag Jadav <raag.jadav@intel.com> Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com> Reviewed-by: Badal Nilawar <badal.nilawar@intel.com> Link: https://patch.msgid.link/20260716073600.674089-4-soham.purkait@intel.com Signed-off-by: Riana Tauro <riana.tauro@intel.com> 
Add a sysfs interface that reports the current GPU health state and
lets admin users and management tools update it but is readable by all
users. Requests are routed through the sysctrl mailbox. The interface
is present only on platforms that support the GPU health indicator.

The interface is a single read/write file at the device level:

  $ cat /sys/.../device/gpu_health
  ok

  $ echo critical > /sys/.../device/gpu_health

  $ cat /sys/.../device/gpu_health
  critical

Signed-off-by: Soham Purkait <soham.purkait@intel.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Raag Jadav <raag.jadav@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Badal Nilawar <badal.nilawar@intel.com>
Link: https://patch.msgid.link/20260716073600.674089-4-soham.purkait@intel.com
Signed-off-by: Riana Tauro <riana.tauro@intel.com>
drm/amdgpu/display: Add amdgpu_display.c documentation 2026-07-15T13:15:41+00:00 Mario Limonciello mario.limonciello@amd.com 2026-07-01T17:00:04+00:00 8b4bd60402a402cd3b451d11cd710c8d25c3acee Add kernel-doc references for amdgpu_display.c to the display manager documentation. This pulls in documentation for display core functions like the hotplug work handler, and the adaptive backlight modulation property. The :internal: directive automatically includes all function documentation, while the explicit :doc: directive captures the property documentation that :internal: doesn't pull in. Fixes: 1454642960b0 ("drm/amd: Re-introduce property to control adaptive backlight modulation") Reviewed-by: Leo Li <sunpeng.li@amd.com> Link: https://patch.msgid.link/20260701170004.465737-1-mario.limonciello@amd.com Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Add kernel-doc references for amdgpu_display.c to the display manager
documentation. This pulls in documentation for display core functions
like the hotplug work handler, and the adaptive backlight modulation
property.

The :internal: directive automatically includes all function documentation,
while the explicit :doc: directive captures the property documentation that
:internal: doesn't pull in.

Fixes: 1454642960b0 ("drm/amd: Re-introduce property to control adaptive backlight modulation")
Reviewed-by: Leo Li <sunpeng.li@amd.com>
Link: https://patch.msgid.link/20260701170004.465737-1-mario.limonciello@amd.com
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/i915/doc: Document DP link capabilities 2026-07-09T07:22:29+00:00 Imre Deak imre.deak@intel.com 2026-07-01T15:31:30+00:00 ee8f7484f99db9fb80ad15af412dbf03eeb9ff57 Add documentation for the DP link capabilities interface. Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://patch.msgid.link/20260701153204.4124150-2-imre.deak@intel.com 
Add documentation for the DP link capabilities interface.

Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20260701153204.4124150-2-imre.deak@intel.com
Merge tag 'drm-intel-next-2026-07-02' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next 2026-07-07T01:15:46+00:00 Dave Airlie airlied@redhat.com 2026-07-07T01:15:46+00:00 fab6908dac1905612efd2e33903afd34cf29f1e0 drm/i915 feature pull for v7.3: Features and functionality: - Novalake (NVL, display versio 35) Common Mode Timing Generator (CMTG) enabling (Animesh) - NVL DC3CO enabling (Dibin) Refactoring and cleanups: - Refactor and document DP link recovery and capability tracking (Imre) - i915 and xe driver display probe/remove/suspend/resume/shutdown cleanup and unification (Jani) - Clean up bandwidth/SAGV code (Ville) - Streamline Pre/Post-CSC LUT loops (Jani) - Remove unused TGL DC3DO support (Dibin) - Make read-only array rates static const (Colin Ian King) - CDCLK sanitization improvements and cleanups (Ville) - Break i915 and xe panic dependency on struct intel_framebuffer (Jani) - GPIO pin renames and cleanups (Ville) - Unify generic irq handler error messages (Jonathan) Fixes: - Various color pipeline fixes (Chaitanya) - Fix step discontinuity in Pre/Post-CSC Gamma LUT (Sean Paul) - Improve refresh rate changes without full modeset on VRR capable eDP (Ville) - Display suspend/resume fixes (Imre) - Fix LPE audio irq for PREEMPT-RT (Maarten) - Fix HDMI scrambling enable (Jerome Tollet) - LNL bandwidth buddy programming update (Vinod) - Streamline display register wait timeouts (Ville) - Fix DP MSA VTotal (Mitul) - Fix LTPHY SSC enabling (Suraj) - Fix LOBF requirements with optimized guardband (Ankit) - Avoid full modeset for LRR vsync changes (Ankit) - Fix vtotal-vsync distance when adjusting vtotal for lower refresh rate (Ankit) - Extend VRR safe window wait for default VRR timing generator usage (Ankit) Merges: - Backmerge for v7.2-rc1 (Jani) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://patch.msgid.link/934cacdbf2a37856eb5cd6337d8774b449405bd8@intel.com 
drm/i915 feature pull for v7.3:

Features and functionality:
- Novalake (NVL, display versio 35) Common Mode Timing Generator (CMTG) enabling (Animesh)
- NVL DC3CO enabling (Dibin)

Refactoring and cleanups:
- Refactor and document DP link recovery and capability tracking (Imre)
- i915 and xe driver display probe/remove/suspend/resume/shutdown cleanup and unification (Jani)
- Clean up bandwidth/SAGV code (Ville)
- Streamline Pre/Post-CSC LUT loops (Jani)
- Remove unused TGL DC3DO support (Dibin)
- Make read-only array rates static const (Colin Ian King)
- CDCLK sanitization improvements and cleanups (Ville)
- Break i915 and xe panic dependency on struct intel_framebuffer (Jani)
- GPIO pin renames and cleanups (Ville)
- Unify generic irq handler error messages (Jonathan)

Fixes:
- Various color pipeline fixes (Chaitanya)
- Fix step discontinuity in Pre/Post-CSC Gamma LUT (Sean Paul)
- Improve refresh rate changes without full modeset on VRR capable eDP (Ville)
- Display suspend/resume fixes (Imre)
- Fix LPE audio irq for PREEMPT-RT (Maarten)
- Fix HDMI scrambling enable (Jerome Tollet)
- LNL bandwidth buddy programming update (Vinod)
- Streamline display register wait timeouts (Ville)
- Fix DP MSA VTotal (Mitul)
- Fix LTPHY SSC enabling (Suraj)
- Fix LOBF requirements with optimized guardband (Ankit)
- Avoid full modeset for LRR vsync changes (Ankit)
- Fix vtotal-vsync distance when adjusting vtotal for lower refresh rate (Ankit)
- Extend VRR safe window wait for default VRR timing generator usage (Ankit)

Merges:
- Backmerge for v7.2-rc1 (Jani)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patch.msgid.link/934cacdbf2a37856eb5cd6337d8774b449405bd8@intel.com
Merge drm/drm-next into drm-intel-next 2026-06-30T12:55:43+00:00 Jani Nikula jani.nikula@intel.com 2026-06-30T12:55:43+00:00 6d177908bad5992e17669030db41caab88041d5e Sync with v7.2-rc1. Signed-off-by: Jani Nikula <jani.nikula@intel.com> 
Sync with v7.2-rc1.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>