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6021 Commits

Author SHA1 Message Date
Dave Airlie
e24b02df4e drm-misc-fixes for v7.2-rc5: 
- Improve damage handling in appletbdrm.
 - Fix harmful fragmenting of MM by backing up TTM pages at native
   page order.
 - Fix timeout handling in amdxdna.
 - Fix imagination locking for map/unmap operations.
 - Fix mm leak in gpusvm eviction.
 - Properly zero page array in gpusvm mm scanning.
 - Prevent trusted shader bo's from being mapped again in vc4.
 - Validate shader array size in vmwgfx.
 - Fix length calculation bugs in ethosu.
 - Better error handling during pagemap migration.
 - Improve v3d suspend.
 - Kconfig updates for some panels.
 - Handle missing iovcc in ili9881c panel.
 - Fix vc4 unbind.
 - Add i2c error handling in gma500.
 - Fix kunit tests on pp64le and s390x.
 - Prevent rearming vc4 timer on shutdown.
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Merge tag 'drm-misc-fixes-2026-07-24' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

drm-misc-fixes for v7.2-rc5:
- Improve damage handling in appletbdrm.
- Fix harmful fragmenting of MM by backing up TTM pages at native
  page order.
- Fix timeout handling in amdxdna.
- Fix imagination locking for map/unmap operations.
- Fix mm leak in gpusvm eviction.
- Properly zero page array in gpusvm mm scanning.
- Prevent trusted shader bo's from being mapped again in vc4.
- Validate shader array size in vmwgfx.
- Fix length calculation bugs in ethosu.
- Better error handling during pagemap migration.
- Improve v3d suspend.
- Kconfig updates for some panels.
- Handle missing iovcc in ili9881c panel.
- Fix vc4 unbind.
- Add i2c error handling in gma500.
- Fix kunit tests on pp64le and s390x.
- Prevent rearming vc4 timer on shutdown.

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

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patch.msgid.link/07284633-6b9b-40f9-8949-b1516a42a34c@linux.intel.com
 2026-07-24 18:30:29 +10:00
Alessandro Rinaldi
bad177fa75 drm/amd/display: Force PWM backlight on Lenovo Legion 5 15ARH05 
The Lenovo Legion 5 15ARH05 (Renoir) ships a BOE 0x08DF eDP panel that
advertises AUX/DPCD backlight control, so amdgpu's automatic detection
(amdgpu_backlight == -1) selects AUX. On this panel the AUX backlight
path has no effect: brightness writes are accepted but the panel level
never changes, the display is stuck at a fixed brightness and
max_brightness is reported as a bogus 511000. As a result neither the
desktop brightness slider nor the brightness hotkeys do anything.

Forcing PWM backlight (amdgpu.backlight=0) restores working control:
max_brightness becomes 65535 and the level tracks writes. This has long
been applied by users as a manual kernel-parameter workaround.

Extend the generic panel backlight quirk with a force_pwm flag, add an
entry for the Legion 5 15ARH05 / BOE 0x08DF panel, and have amdgpu
disable AUX backlight (use PWM) when the quirk matches and the user
lets the driver auto-select the backlight type.

Signed-off-by: Alessandro Rinaldi <ale@alerinaldi.it>
Tested-by: Alessandro Rinaldi <ale@alerinaldi.it>
Reviewed-by: George Zhang <george.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 81b39f43e7)
Cc: stable@vger.kernel.org
 2026-07-17 17:41:15 -04:00
Matthew Brost
a3fdf74ffa drm/ttm/pool: back up at native page order 
ttm_pool_split_for_swap() unconditionally splits high-order pool pages
into order-0 pages before backup, so every compound the shrinker
touches is shattered even when the rest of the system would prefer it
stay intact. Under sustained kswapd pressure this fragments memory
enough to drive other parts of MM into recovery loops.

Back up each compound at its native order instead. In
ttm_pool_backup(), hand the full compound to the new
ttm_backup_backup_folio(), which backs up subpages to a contiguous
range of shmem indices and returns the base handle plus the number of
subpages actually backed up (@nr_backed). On full success, free the
compound once at its native order -- no split_page(), no per-4K
refcount juggling.

A per-folio backup can't be made fully atomic under memory pressure:
ttm_backup_backup_folio() must allocate shmem folios before source
subpages can be released, so under true OOM any subpage may fail
while the rest of the compound is still live. Two mechanisms handle
this without regressing reclaim behaviour:

  - alloc_gfp gets __GFP_NOMEMALLOC whenever order > 0 (cleared again
    for order-0), so a high-order backup fails fast with -ENOMEM
    instead of draining kernel reserves, leaving them for other
    allocations under the same pressure.

  - If ttm_backup_backup_folio() still returns a short @nr_backed with
    a valid handle for the successfully-backed prefix, split the
    source compound with ttm_pool_split_for_swap(), free the prefix as
    order-0 pages (already safely in shmem), and retry the remaining
    subpages at order 0, where __GFP_NOMEMALLOC is cleared and
    reserves may be used as a last resort.

This preserves the original split-on-OOM fallback while keeping the
common case fragmentation-free, and preserves the "partial backup is
allowed" contract (shrunken is incremented per subpage backed up).

The restore-side leftover-page split in ttm_pool_restore_commit() is
left as-is: it's unreachable in practice and not worth complicating
the restore state machine to avoid.

Testing: the existing backup_fault_inject point only truncated
tt->num_pages, which never exercised the reactive split path above
since it never left a compound partially backed up. Wire fault
injection into ttm_backup_backup_folio() itself: past the first
subpage of a compound, synthesize a -ENOMEM in place of
shmem_read_folio_gfp() when should_fail() trips, producing the same
short @nr_pages_backed a real failure would and forcing
ttm_pool_backup() through the split-and-retry path. The fault_attr
stays private to ttm_pool.c; ttm_backup.c reaches it through
ttm_backup_fault_inject_folio(), declared in ttm_pool_internal.h.

While converting the writeback branch to operate on the whole folio,
the unlock condition after shmem_writeout() also changed from `if
(ret)` to `if (ret == AOP_WRITEPAGE_ACTIVATE)`, matching the actual
contract: shmem_writeout()/swap_writeout() only leave the folio locked
when returning AOP_WRITEPAGE_ACTIVATE; any other return (including a
hard error from arch_prepare_to_swap()) means the folio was already
unlocked internally. The old `if (ret)` check would have double-
unlocked in that hard-error case.

Cc: Christian Koenig <christian.koenig@amd.com>
Cc: Huang Rui <ray.huang@amd.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@gmail.com>
Cc: Simona Vetter <simona@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org
Fixes: b63d715b80 ("drm/ttm/pool, drm/ttm/tt: Provide a helper to shrink pages")
Suggested-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Assisted-by: Claude:claude-opus-4.6
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patch.msgid.link/20260716201358.4086085-1-matthew.brost@intel.com
 2026-07-17 09:09:27 -07:00
Christian König
4e28aa8f7e drm/drm_exec: avoid indirect goto 
The drm_exec component uses a variable with scope limited to the for() and
an indirect goto to allow instantiating multiple macros in the same
function.

This unfortunately doesn't work well with certain compilers when the
indirect goto can't be lowered to a direct jump.

Switch the indirect goto to a direct goto, the drawback is that we now
can't use the dma_exec_until_all_locked() macro in the same function
multiple times.

The is currently only one user of this and only as a hacky workaround
which is about to be removed.

So document that the __label__ statement should be used when the macro is
used multiple times and fix the tests and the only use case where that is
necessary.

Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Christian König <christian.koenig@amd.com>
Fixes: 9920249a52 ("drm/amdgpu: convert amdgpu_vm_lock_by_pasid() to drm_exec")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202606231854.7LeCtlLe-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202606232356.gwHMAJAW-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202606240753.kYjobJVl-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202606241110.iUga5vVw-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202607031446.1PWG18mN-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202607031837.HSmBj8pr-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202607040159.GopyEswS-lkp@intel.com/
Tested-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: https://lore.kernel.org/r/20260704084133.122053-1-christian.koenig@amd.com
 2026-07-07 14:02:53 +02:00
Jani Nikula
64ace85a72 drm/ras: include linux/types.h in drm_ras.h 
drm_ras.h uses u32. Include linux/types.h for it.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260615152949.1899358-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
 2026-06-30 15:51:24 +03:00
Jani Nikula
9ec3aeace4 drm/fixed: fix kernel-doc for drm_sm2fixp() 
Fix the kernel-doc comment for drm_sm2fixp().

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260615153012.1899576-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
 2026-06-30 12:31:20 +03:00
Jani Nikula
ac4aa4b41b drm/dp: fix kernel-doc for struct drm_dp_as_sdp 
Add the missing coasting_vtotal kernel-doc member documentation for
struct drm_dp_as_sdp.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260615153027.1899784-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
 2026-06-30 12:30:40 +03:00
Linus Torvalds
5a66900afb drm fixes for 7.2-rc1 
sysfb
 - drm/sysfb truncation and alignment fixes.
 
 edid:
 - fix edid OOB read in tile parsing
 - increase displayid topology id to correct size.
 
 nouveau:
 - fix error handling paths in nouveau
 
 amdxdna:
 - get_bo_info fix.
 
 ivpu:
 - fix leak when error handling in ivpu.
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Merge tag 'drm-fixes-2026-06-27' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "These are just the fixes from our fixes branch, all pretty small and
  scattered.

  sysfb:
   - drm/sysfb truncation and alignment fixes

  edid:
   - fix edid OOB read in tile parsing
   - increase displayid topology id to correct size

  nouveau:
   - fix error handling paths in nouveau

  amdxdna:
   - get_bo_info fix

  ivpu:
   - fix leak when error handling in ivpu"

* tag 'drm-fixes-2026-06-27' of https://gitlab.freedesktop.org/drm/kernel:
  drm/sysfb: Avoid truncating maximum stride
  drm/sysfb: Return errno code from drm_sysfb_get_visible_size()
  drm/sysfb: Avoid possible truncation with calculating visible size
  drm/sysfb: Do not page-align visible size of the framebuffer
  drm/edid: fix OOB read in drm_parse_tiled_block()
  drm/nouveau: fix reversed error cleanup order in ucopy functions
  drm/nouveau/acr: fix missing nvkm_done() in error path of nvkm_acr_oneinit()
  accel/amdxdna: Use caller client for debug BO sync
  drm/displayid: fix Tiled Display Topology ID size
  accel/ivpu: fix HWS command queue leak on registration failure
 2026-06-26 17:03:48 -07:00
Dave Airlie
f24ba334af drm-misc-fixes for v7.2: 
- drm/sysfb truncation and alignment fixes.
 - fix edid OOB read.
 - fix error handling paths in nouveau
 - amdxdna get_bo_info fix.
 - increase displayid topology id to correct size.
 - fix leak when error handling in ivpu.
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Merge tag 'drm-misc-fixes-2026-06-25' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

drm-misc-fixes for v7.2:
- drm/sysfb truncation and alignment fixes.
- fix edid OOB read.
- fix error handling paths in nouveau
- amdxdna get_bo_info fix.
- increase displayid topology id to correct size.
- fix leak when error handling in ivpu.

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

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patch.msgid.link/2d17f718-43f5-4772-9c04-a975c9ad4bc3@linux.intel.com
 2026-06-26 08:16:41 +10:00
Linus Torvalds
4b99990cdf drm-next for 7.2-rc1 
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
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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
Jani Nikula
90c0486a82 drm/displayid: fix Tiled Display Topology ID size 
The Tiled Display Topology ID of a DisplayID Tiled Display Topology Data
Block consists of three fields:

- Tiled Display Manufacturer/Vendor ID Field (3 bytes)
- Tiled Display Product ID Code Field (2 bytes)
- Tiled Display Serial Number Field (4 bytes)

i.e. a total of 9 bytes, not 8.

The DisplayID Tiled Display Topology ID is used as the tile group
identifier.

Update both struct displayid_tiled_block topology_id member and struct
drm_tile_group group_data member to full 9 bytes.

The group data was missing the last byte of the serial number. I don't
know whether there are known bug reports that might be linked to this,
but it's plausible the last byte could be the differentiating part for
the tile groups, and fewer tile groups might have been created than
intended.

Fixes: b49b55bd4f ("drm/displayid: add displayid defines and edid extension (v2)")
Fixes: 138f9ebb97 ("drm: add tile_group support. (v3)")
Cc: Dave Airlie <airlied@redhat.com>
Cc: stable@vger.kernel.org # v3.19+
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: https://patch.msgid.link/20260610141549.555605-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
 2026-06-15 13:50:42 +03:00
Dave Airlie
7c62657a10 Short summary of fixes pull: 
amd:
 - track colorop changes correctly
 
 amdxdna:
 - fix possible leak of mm_struct
 
 colorop:
 - make lut interpolation mutable
 - track colorop updates correctly
 
 ivpu:
 - fix integer truncation
 
 vc4:
 - fix leak in krealloc() error handling
 
 virtio:
 - fix dma_fence ref-count leak
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Merge tag 'drm-misc-fixes-2026-06-12' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

Short summary of fixes pull:

amd:
- track colorop changes correctly

amdxdna:
- fix possible leak of mm_struct

colorop:
- make lut interpolation mutable
- track colorop updates correctly

ivpu:
- fix integer truncation

vc4:
- fix leak in krealloc() error handling

virtio:
- fix dma_fence ref-count leak

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

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260612081418.GA17001@2a02-2455-9062-2500-e496-5a17-62ba-545e.dyn6.pyur.net
 2026-06-13 07:52:40 +10:00
Melissa Wen
2e235e2a27 drm/atomic: track individual colorop updates 
As we do for CRTC color mgmt properties, use color_mgmt_changed flag to
track any value changes in the color pipeline of a given plane, so that
drivers can update color blocks as soon as plane color pipeline or
individual colorop values change. Since we're here, only announce and
track changes to plane COLOR_PIPELINE prop if its value is actually
changing.

Fixes: 8c5ea1745f ("drm/colorop: Add BYPASS property")
Fixes: 7fa3ee8c0a ("drm/colorop: Define LUT_1D interpolation")
Fixes: 41651f9d42 ("drm/colorop: Add 1D Curve subtype")
Fixes: 3410108037 ("drm/colorop: Add multiplier type")
Fixes: db971856bb ("drm/colorop: Add 3D LUT support to color pipeline")
Fixes: e5719e7f19 ("drm/colorop: Add 3x4 CTM type")
Fixes: 99a4e4f08a ("drm/colorop: Add 1D Curve Custom LUT type")
Fixes: 2afc3184f3 ("drm/plane: Add COLOR PIPELINE property")
Reviewed-by: Harry Wentland <harry.wentland@amd.com> #v1
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Fixes: 9ba25915ef ("drm/amd/display: Add support for sRGB EOTF in DEGAM block")
Signed-off-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Link: https://patch.msgid.link/20260609110420.1298352-4-mwen@igalia.com
 2026-06-10 07:13:36 -03:00
Melissa Wen
94ff735296 drm/colorop: make lut(1/3)d_interpolation props correctly behave as mutable 
As interpolation props are actually mutable props, any changes should be
handled by drm_colorop_state. Move their enum and make it correctly
behaves as mutable.

Fixes: 7fa3ee8c0a ("drm/colorop: Define LUT_1D interpolation")
Fixes: db971856bb ("drm/colorop: Add 3D LUT support to color pipeline")
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Fixes: 9ba25915ef ("drm/amd/display: Add support for sRGB EOTF in DEGAM block")
Signed-off-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Link: https://patch.msgid.link/20260609110420.1298352-3-mwen@igalia.com
 2026-06-10 07:13:35 -03:00
Alex Hung
e480228cf6 drm/colorop: Remove read-only comments from interpolation fields 
The lut1d_interpolation and lut3d_interpolation fields and their
associated properties were marked as read-only, but userspace
can set them via drm_atomic_colorop_set_property().

Fixes: 7fa3ee8c0a ("drm/colorop: Define LUT_1D interpolation")
Fixes: db971856bb ("drm/colorop: Add 3D LUT support to color pipeline")
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Fixes: 9ba25915ef ("drm/amd/display: Add support for sRGB EOTF in DEGAM block")
Signed-off-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Link: https://patch.msgid.link/20260609110420.1298352-2-mwen@igalia.com
 2026-06-10 07:13:34 -03:00
Dave Airlie
8205c61deb 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.
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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
Lyude Paul
b78dab8297 drm/gem/shmem: Introduce __drm_gem_shmem_free_sgt_locked() 
One of the complications of trying to use the shmem helpers to create a
scatterlist for shmem objects is that we need to be able to provide a
guarantee that the driver cannot be unbound for the lifetime of the
scatterlist.

The easiest way of handling this seems to be just hooking up an unmap
operation to devres the first time we create a scatterlist, which allows us
to still take advantage of gem shmem facilities without breaking that
guarantee. To allow for this, we extract __drm_gem_shmem_free_sgt_locked()
- which allows a caller (e.g. the rust bindings) to manually unmap the sgt
for a gem object as needed.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Link: https://patch.msgid.link/20260529183702.677677-6-lyude@redhat.com
 2026-06-02 13:16:40 -04:00
Thomas Zimmermann
a544da908a Merge drm/drm-next into drm-misc-next 
Backmerging to get GEM LRU fixes from commit 379e8f1c ("drm/gem: Make
the GEM LRU lock part of drm_device") and other updates from v7.1-rc5.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
 2026-05-28 11:27:53 +02:00
Simona Vetter
bed29492d4 Linux 7.1-rc5 
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Merge v7.1-rc5 into drm-next

Boris Brezillion needs the gem lru fixes 379e8f1ca5 ("drm/gem: Make
the GEM LRU lock part of drm_device") backmerged for drm-misc-next.
That also means we need to sort out the rename conflict in panthor with
the fixup patch from Boris from drm-tip.

Signed-off-by: Simona Vetter <simona.vetter@ffwll.ch>
 2026-05-28 09:58:36 +02:00
Dave Airlie
40149d887c Merge tag 'drm-misc-next-2026-05-21' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next 
drm-misc-next for v7.2-rc1:

UAPI Changes:
- Add VIRTIO_GPU_F_BLOB_ALIGNMENT flag.

Cross-subsystem Changes:
- Add common TMDS character rate constants to video/hdmi and use those
  in bridge drivers.

Core Changes:
- Fix leak in drm_syncobj_find_fence.
- Fix OOB reads related to DP-MST.
- Create drm_get_bridge_by_endpoint and convert drivers to use it in
  preparation of hotplug.

Driver Changes:
- Assorted bugfixes and cleanups to accel/ethosu, imagination, virtio,
  rockchip.
- Expandable device heap support to amdxdna, bridge/chipone-icn6211.
- Add Surface Pro 12 panels.
- Convert ite-it6211 to use drm hdmi audio helpers.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patch.msgid.link/f4034e3c-8290-49e1-9410-dc1f449265f4@linux.intel.com
 2026-05-26 06:51:31 +10:00
Thomas Hellström
b34bafc38c drm/exec, drm/xe, drm/amdgpu: Add an accessor for struct drm_exec::ticket 
Drivers were accessing this drm_exec member directly.
While that may seem harmless, it will require action if
the drm_exec utility is made a subclass of a dma-resv transaction
utility as outlined in the cover-letter.

Provide an accessor, drm_exec_ticket() to avoid that.

v2:
- Fix amdgpu compile error (Intel CI)
- Update the commit message.

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patch.msgid.link/20260520101616.41284-5-thomas.hellstrom@linux.intel.com
 2026-05-25 10:45:38 +02:00
Thomas Hellström
bba175a2d4 drm/exec, drm/xe: Avoid abusing the drm_exec retry pointer 
The xe driver was using the drm_exec retry pointer directly to
restart the locking loop after out-of-memory errors. This is
relying on undocumented behaviour.

Instead add a drm_exec_retry() macro that can be used in this
situation, and that also warns if the struct drm_exec is
not newly (re-)initialized.

Use that macro in xe.

v2:
- Only allow if the drm_exec context is newly initialized.
  (Christian)

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patch.msgid.link/20260520101616.41284-4-thomas.hellstrom@linux.intel.com
 2026-05-25 10:45:38 +02:00
Thomas Hellström
25331d9d40 drm/exec: Make the drm_exec_until_all_locked() macro more readable 
Use __UNIQUE_ID as done elsewhere in the kernel rather than a
hand-rolled __PASTE to craft a unique id.

Also use __maybe_unused rather than (void) to signify that a
variable, althrough written to, may not actually be used.

v2:
- Move assignment to declaration (Christian)
- Declare the retry pointer as void *const.

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patch.msgid.link/20260520101616.41284-3-thomas.hellstrom@linux.intel.com
 2026-05-25 10:45:38 +02:00
Thomas Hellström
ce44b78512 drm/exec: Remove the index parameter from drm_exec_for_each_locked_obj[_reverse] 
Nobody makes any use of it. Possible internal future users can
instead use the _index variable. External users shouldn't use
it since the array it's pointing into is internal drm_exec state.

v2:
- Use a unique id for the loop variable (Christian)

Assisted-by: GitHub Copilot:claude-sonnet-4.6
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patch.msgid.link/20260520101616.41284-2-thomas.hellstrom@linux.intel.com
 2026-05-25 10:45:38 +02:00
Dave Airlie
71d9e1561a Short summary of fixes pull: 
amdxdna:
 - remove mmap and export for ubuf
 
 bridge:
 - chipone-icn6211: managed bridge cleanup
 - lt66121: acquire reset GPIO
 - megachips: fix clean up on failed IRQ requests
 
 gem:
 - clean up LRU locking
 
 v3d:
 - fix UAF in error code paths
 - release GEM-object ref on free'd jobs
 
 virtio:
 - use uninterruptible resv locking in plane updates
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Merge tag 'drm-misc-fixes-2026-05-21' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

Short summary of fixes pull:

amdxdna:
- remove mmap and export for ubuf

bridge:
- chipone-icn6211: managed bridge cleanup
- lt66121: acquire reset GPIO
- megachips: fix clean up on failed IRQ requests

gem:
- clean up LRU locking

v3d:
- fix UAF in error code paths
- release GEM-object ref on free'd jobs

virtio:
- use uninterruptible resv locking in plane updates

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

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260521071456.GA14644@localhost.localdomain
 2026-05-22 07:01:04 +10:00
Luca Ceresoli
03d1078112 drm/bridge: add of_drm_get_bridge_by_endpoint() 
drm_of_find_panel_or_bridge() is widely used, but many callers pass NULL
into the @panel or the @bridge arguments, thus making a very partial usage
of this rather complex function.

Besides, the bridge returned in @bridge is not refcounted, thus making this
API unsafe when DRM bridge hotplug will be introduced.

Solve both issues for the cases of calls to drm_of_find_panel_or_bridge()
with a NULL @panel pointer by adding a new function that only looks for
bridges (and is thus much simpler) and increments the refcount of the
returned bridge.

The new function is identical to drm_of_find_panel_or_bridge() except it:

 - handles bridge refcounting: uses of_drm_find_and_get_bridge() instead of
   of_drm_find_bridge() internally to return a refcounted bridge
 - is simpler to use: just takes no @panel parameter, returns the pointer
   in the return value instead of a double pointer argument
 - has a simpler implementation: it is equal to
   drm_of_find_panel_or_bridge() after removing the code that becomes dead
   when @panel == NULL

Also add this function to drm_bridge.c and not drm_of.c because it returns
bridges only.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://patch.msgid.link/20260511-drm-bridge-alloc-getput-panel_or_bridge-v6-2-f61c9e498b3f@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
 2026-05-19 10:57:25 +02:00
Boris Brezillon
379e8f1ca5 drm/gem: Make the GEM LRU lock part of drm_device 
Recently, a few races have been discovered in the GEM LRU logic, all
of them caused by the fact the LRU lock is accessed through
gem->lru->lock, and that very same lock also protects changes to
gem->lru, leading to situations where gem->lru needs to first be
accessed without the lock held, to then get the lru to access the lock
through and finally take the lock and do the expected operation.

Currently, the only driver making use of this API (MSM) declares a
device-wide lock, and the user we're about to add (panthor) will
do the same. There's no evidence that we will ever have a driver
that wants different pools of LRUs protected by different locks under
the same drm_device. So we're better off moving this lock to drm_device
and always locking it through obj->dev->gem_lru_mutex, or directly
through dev->gem_lru_mutex.

If anyone ever needs more fine-grained locking, this can be revisited
to pass some drm_gem_lru_pool object representing the pool of LRUs
under a specific lock, but for now, the per-device lock seems to be
enough.

Fixes: e7c2af13f8 ("drm/gem: Add LRU/shrinker helper")
Reported-by: Chia-I Wu <olvaffe@gmail.com>
Closes: https://gitlab.freedesktop.org/panfrost/linux/-/work_items/86
Reviewed-by: Rob Clark <rob.clark@oss.qualcomm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
Link: https://patch.msgid.link/20260518-panthor-shrinker-fixes-v4-1-1920234470d5@collabora.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
 2026-05-18 15:16:47 +02:00
Dave Airlie
396db75a1f Short summary of fixes pull: 
bridge:
 - imx8qxp-pxl2dpi: avoid ERR_PTR with device_node cleanup
 
 gma500:
 - oaktrail_lvds: fix i2c handling
 
 loongson:
 - use managed cleanup for connector polling
 
 panfrost:
 - handle results from reservation locking correctly
 
 qaic:
 - check for integer overflows in mmap logic
 
 rocket:
 - handle results from reservation locking correctly
 
 ttm:
 - avoid infinite loop in swap out
 - avoid infinite loop in BO shrinking
 - convert -EAGAIN from dmem_cgroup_try_charge to -ENOSPC
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Merge tag 'drm-misc-fixes-2026-05-15' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

Short summary of fixes pull:

bridge:
- imx8qxp-pxl2dpi: avoid ERR_PTR with device_node cleanup

gma500:
- oaktrail_lvds: fix i2c handling

loongson:
- use managed cleanup for connector polling

panfrost:
- handle results from reservation locking correctly

qaic:
- check for integer overflows in mmap logic

rocket:
- handle results from reservation locking correctly

ttm:
- avoid infinite loop in swap out
- avoid infinite loop in BO shrinking
- convert -EAGAIN from dmem_cgroup_try_charge to -ENOSPC

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

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260515070816.GA88575@2a02-2455-9062-2500-7dec-552d-233d-9fe0.dyn6.pyur.net
 2026-05-16 07:56:32 +10:00
Dave Airlie
1f863fe673 - 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)
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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
bfdb8fa114 Driver Changes: 
- drm/xe/cri: Add new PCI IDs (Balasubramani Vivekanandan)
 - drm/xe/memirq: Enable GT_MI_USER_INTERRUPT only (Michal Wajdeczko)
 - drm/xe/memirq: Update interrupt handler logic (Michal Wajdeczko)
 - drm/xe: Drop unused ggtt_balloon field (Michal Wajdeczko)
 - drm/xe: Refactor emit_xy_fast_copy and emit_mem_copy functions (Balasubramani Vivekanandan)
 - drm/xe: Refactor emit_clear_link_copy (Balasubramani Vivekanandan)
 - drm/xe: Refactor emit_clear_main_copy (Balasubramani Vivekanandan)
 - drm/xe/devcoredump: Drop a FIXME in devcoredump (Shekhar Chauhan)
 - drm/xe/oa: MERTOA Wa_14026779378 (Ashutosh Dixit)
 - drm/xe/oa: Add val arg to xe_oa_is_valid_config_reg (Ashutosh Dixit)
 - drm/xe/oa: MERTOA Wa_14026746987 (Ashutosh Dixit)
 - drm/xe/oa: Refactor oa_unit_supports_oa_format (Ashutosh Dixit)
 - drm/xe/dma-buf: fix UAF with retry loop (Matthew Auld)
 - drm/xe/dma-buf: handle empty bo and UAF races (Matthew Auld)
 - drm/xe/multi_queue: Whitelist QUEUE_TIMESTAMP register (Umesh Nerlige Ramappa)
 - drm/xe/multi_queue: Use QUEUE_TIMESTAMP as job timestamp for multi-queue (Umesh Nerlige Ramappa)
 - drm/xe/multi_queue: Add trace event for the multi queue timestamp (Umesh Nerlige Ramappa)
 - drm/xe/multi_queue: Capture queue run times for active queues (Umesh Nerlige Ramappa)
 - drm/xe/lrc: Refactor out engine id to hwe conversion (Umesh Nerlige Ramappa)
 - drm/xe/multi_queue: Add helpers to access CS QUEUE TIMESTAMP from lrc (Umesh Nerlige Ramappa)
 - drm/xe/multi_queue: Store primary LRC and position info in LRC (Umesh Nerlige Ramappa)
 - drm/xe/multi_queue: Refactor check for multi queue support for engine class (Umesh Nerlige Ramappa)
 - drm/xe/lrc: Refactor xe_lrc_timestamp to simplify logic (Umesh Nerlige Ramappa)
 - drm/xe: Add timestamp_ms to LRC snapshot (Matthew Brost)
 - drm/xe/lrc: Use 64 bit ctx timestamp in the LRC snapshot (Umesh Nerlige Ramappa)
 - drm/xe/eustall: Return ENODEV from read if EU stall registers get reset (Harish Chegondi)
 - drm/xe/multi_queue: Refactor CGP_SYNC send path (Niranjana Vishwanathapura)
 - drm/xe/multi_queue: Remove redundant assignment in guc_exec_queue_run_job (Niranjana Vishwanathapura)
 - drm/xe: Make decision to use Xe2-style blitter instructions a feature flag (Matt Roper)
 - drm/xe: Convert stolen memory over to ttm_range_manager (Sanjay Yadav)
 - drm/xe/madvise: Track purgeability with BO-local counters (Arvind Yadav)
 - drm/xe/xe_survivability: Simplify runtime survivability error handling (Mallesh Koujalagi)
 - drm/xe/guc: Exclude indirect ring state page from ADS engine state size (Satyanarayana K V P)
 - drm/xe/hw_error: Cleanup array map (Raag Jadav)
 - drm/xe/pf: Fix MMIO access using PF view instead of VF view during migration (Shuicheng Lin)
 - drm/xe/pf: Fix EAGAIN sign in pf_migration_consume() (Shuicheng Lin)
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Merge tag 'drm-xe-next-2026-05-14' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next

Driver Changes:

- drm/xe/cri: Add new PCI IDs (Balasubramani Vivekanandan)
- drm/xe/memirq: Enable GT_MI_USER_INTERRUPT only (Michal Wajdeczko)
- drm/xe/memirq: Update interrupt handler logic (Michal Wajdeczko)
- drm/xe: Drop unused ggtt_balloon field (Michal Wajdeczko)
- drm/xe: Refactor emit_xy_fast_copy and emit_mem_copy functions (Balasubramani Vivekanandan)
- drm/xe: Refactor emit_clear_link_copy (Balasubramani Vivekanandan)
- drm/xe: Refactor emit_clear_main_copy (Balasubramani Vivekanandan)
- drm/xe/devcoredump: Drop a FIXME in devcoredump (Shekhar Chauhan)
- drm/xe/oa: MERTOA Wa_14026779378 (Ashutosh Dixit)
- drm/xe/oa: Add val arg to xe_oa_is_valid_config_reg (Ashutosh Dixit)
- drm/xe/oa: MERTOA Wa_14026746987 (Ashutosh Dixit)
- drm/xe/oa: Refactor oa_unit_supports_oa_format (Ashutosh Dixit)
- drm/xe/dma-buf: fix UAF with retry loop (Matthew Auld)
- drm/xe/dma-buf: handle empty bo and UAF races (Matthew Auld)
- drm/xe/multi_queue: Whitelist QUEUE_TIMESTAMP register (Umesh Nerlige Ramappa)
- drm/xe/multi_queue: Use QUEUE_TIMESTAMP as job timestamp for multi-queue (Umesh Nerlige Ramappa)
- drm/xe/multi_queue: Add trace event for the multi queue timestamp (Umesh Nerlige Ramappa)
- drm/xe/multi_queue: Capture queue run times for active queues (Umesh Nerlige Ramappa)
- drm/xe/lrc: Refactor out engine id to hwe conversion (Umesh Nerlige Ramappa)
- drm/xe/multi_queue: Add helpers to access CS QUEUE TIMESTAMP from lrc (Umesh Nerlige Ramappa)
- drm/xe/multi_queue: Store primary LRC and position info in LRC (Umesh Nerlige Ramappa)
- drm/xe/multi_queue: Refactor check for multi queue support for engine class (Umesh Nerlige Ramappa)
- drm/xe/lrc: Refactor xe_lrc_timestamp to simplify logic (Umesh Nerlige Ramappa)
- drm/xe: Add timestamp_ms to LRC snapshot (Matthew Brost)
- drm/xe/lrc: Use 64 bit ctx timestamp in the LRC snapshot (Umesh Nerlige Ramappa)
- drm/xe/eustall: Return ENODEV from read if EU stall registers get reset (Harish Chegondi)
- drm/xe/multi_queue: Refactor CGP_SYNC send path (Niranjana Vishwanathapura)
- drm/xe/multi_queue: Remove redundant assignment in guc_exec_queue_run_job (Niranjana Vishwanathapura)
- drm/xe: Make decision to use Xe2-style blitter instructions a feature flag (Matt Roper)
- drm/xe: Convert stolen memory over to ttm_range_manager (Sanjay Yadav)
- drm/xe/madvise: Track purgeability with BO-local counters (Arvind Yadav)
- drm/xe/xe_survivability: Simplify runtime survivability error handling (Mallesh Koujalagi)
- drm/xe/guc: Exclude indirect ring state page from ADS engine state size (Satyanarayana K V P)
- drm/xe/hw_error: Cleanup array map (Raag Jadav)
- drm/xe/pf: Fix MMIO access using PF view instead of VF view during migration (Shuicheng Lin)
- drm/xe/pf: Fix EAGAIN sign in pf_migration_consume() (Shuicheng Lin)

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

From: Thomas Hellstrom <thomas.hellstrom@linux.intel.com>
Link: https://patch.msgid.link/agXMKRRl1oxB204x@fedora
 2026-05-15 13:58:13 +10:00
Felix Kuehling
d989f135f7 drm/ttm: Support 52-bit PAs in ttm_place 
fpfn and lpfn in struct ttm_place are 32-bit page numbers. With 4KB page
size this can support up to 44-bit physical addressing. Grow these to
64-bit (uint64_t) to support larger physical addresses.

Signed-off-by: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Link: https://patch.msgid.link/20260513141253.20410-1-felix.kuehling@amd.com
 2026-05-13 20:14:24 +05:30
Ville Syrjälä
f225861a0f drm/i915: Introduce the main fb_pin parent interface 
Introduce the main part of the new fb_pin parent interface:
- intel_parent_fb_pin_ggtt_(un)pin()
- intel_parent_fb_pin_dpt_(un)pin()
- intel_parent_fb_pin_reuse_vma()

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20260508143426.26504-14-ville.syrjala@linux.intel.com
 2026-05-11 17:43:25 +03:00
Ville Syrjälä
65585c16d9 drm/i915: Move intel_fb_pin_params to the parent interface 
strut intel_fb_pin_params will be an important part of the fb_pin
interface, so move the definition to the parent interface file.

Or maybe we should have a separate header for this kind of stuff
since the users of the parent interface will need the struct
definition but not the parent interface vfunc struct definitions?

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20260508143426.26504-3-ville.syrjala@linux.intel.com
 2026-05-11 17:43:24 +03:00
Ville Syrjälä
c2b4b6075d drm/i915: Introduce intel_parent_fb_pin_get_map() 
Introduce the "fb_pin" parent interface, as the first trivial step
move the *_get_map() stuff there.

The whole "fb_pin" as an interface might not really make sense,
and perhaps this (and other stuff) should just be collected into
some kind of "bo" interface. But let's go with "fb_pin" for now
to match where things are implemented, and possibly restructure
it later.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20260508143426.26504-2-ville.syrjala@linux.intel.com
 2026-05-11 17:43:24 +03:00
Ankit Nautiyal
e878adca84 drm/dp: Store coasting vtotal in struct drm_dp_as_sdp 
Add new field in struct drm_dp_as_sdp to store coasting vtotal.
This is used by the sinks that support Panel Replay and Asynchronous
timing during PR Active to derive refresh rate, when AS SDP transmission
is stopped by the source.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260428074457.3566918-7-ankit.k.nautiyal@intel.com
 2026-05-11 14:28:46 +05:30
Ankit Nautiyal
69070f4d2d drm/dp: Add DPCD for configuring AS SDP for PR + VRR 
Add additional DPCDs required to be configured to support VRR with Panel
Replay. These DPCDs are specifically required for configuring Adaptive Sync
SDP and are introduced in DP v2.1.

v2:
 - Correct the shift for the bits. (Ville)
 - Add DP_PR_ prefix for the PR-related fields.
v3:
 - Use macro values in their shifted form to match the convention. (Ville)
v4:
 - Add macro for the mask. (Ville)

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260428074457.3566918-5-ankit.k.nautiyal@intel.com
 2026-05-11 14:28:43 +05:30
Ankit Nautiyal
715e0fd96b drm/dp: Add bits for AS SDP FAVT Payload Fields Parsing support 
DP v2.1 introduced support for sending AS SDP payload bytes for FAVT.
Add the relavant bits for the same.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260428074457.3566918-4-ankit.k.nautiyal@intel.com
 2026-05-11 14:28:42 +05:30
Ankit Nautiyal
f145a1cfc8 drm/dp: Clean up DPRX feature enumeration macros 
Align the DP_DPRX feature enumeration macros for better readability and
consistency, and use the BIT() macro instead of open-coded shifts.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260428074457.3566918-3-ankit.k.nautiyal@intel.com
 2026-05-11 14:28:40 +05:30
Ankit Nautiyal
59e5e15fef drm/dp: Rename and relocate AS SDP payload field masks 
The AS SDP payload field masks were misnamed and placed under the DPRX
feature enumeration list. These are not DPRX capability bits, but are
payload field masks for the Adaptive Sync SDP.

Relocate both masks next to the AS SDP definitions.
Update users to the corrected names. No functional change.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260428074457.3566918-2-ankit.k.nautiyal@intel.com
 2026-05-11 14:28:39 +05:30
Albert Esteve
fe417df954
drm/panel: Make drm_panel_init() static 
Now that all panel drivers use devm_drm_panel_alloc(),
there are no external callers of drm_panel_init().
Make it static to prevent new users from bypassing the
refcounted allocation path.

Remove stale references to drm_panel_init() in kdocs.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Albert Esteve <aesteve@redhat.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260508-drm_panel_init_rm-v2-10-0bd4ac429971@redhat.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
 2026-05-11 09:14:21 +02:00
Thomas Hellström
b2ed01e7ad drm/ttm: Fix ttm_bo_swapout() infinite LRU walk on swapout failure 
When ttm_tt_swapout() fails, the current code calls
ttm_resource_add_bulk_move() followed by ttm_resource_move_to_lru_tail()
to restore the resource's bulk_move membership.

However, ttm_resource_move_to_lru_tail() places the resource at the tail
of the LRU list which, relative to the walk cursor's hitch node (placed
immediately after the resource when it was yielded), puts the resource
*in front of the* the hitch. The next list_for_each_entry_continue() from
the hitch finds the same resource again, causing an infinite loop.

Fix by deferring del_bulk_move to the success path only.

On the success path, TTM_TT_FLAG_SWAPPED has just been set by
ttm_tt_swapout() but the resource is still tracked in the bulk_move range,
so ttm_resource_del_bulk_move()'s !ttm_resource_unevictable() guard would
incorrectly skip the removal. Introduce
ttm_resource_del_bulk_move_unevictable() which bypasses that guard.

Reported-by: Jatin Kataria <jkataria@netflix.com>
Fixes: fc5d96670e ("drm/ttm: Move swapped objects off the manager's LRU list")
Cc: Christian König <christian.koenig@amd.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: <dri-devel@lists.freedesktop.org>
Cc: <stable@vger.kernel.org> # v6.13+
Assisted-by: GitHub_Copilot:claude-sonnet-4.6
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Tested-by: Boqun Feng <boqun@kernel.org>
Link: https://patch.msgid.link/20260428094442.16985-1-thomas.hellstrom@linux.intel.com
 2026-05-08 17:19:44 +02:00
Thomas Hellström
c53ed3e999 Merge drm/drm-next into drm-xe-next 
Bringing in recent display changes.

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
 2026-05-08 16:19:45 +02:00
Dave Airlie
f96538285c 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.
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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
Shuicheng Lin
8e4020e083 drm/gpusvm: Drop redundant @flags.* kernel-doc on struct drm_gpusvm_pages 
The kernel-doc block above struct drm_gpusvm_pages duplicates the
descriptions of the bit-flags that live in struct drm_gpusvm_pages_flags
using dotted notation (@flags.migrate_devmem, @flags.unmapped, ...).
That dotted notation is intended for nested anonymous structs/unions that
the parser flattens into the parent's parameter list.  Here, however,
flags is of a named external type, so the parser does not flatten its
members and the dotted entries do not match any member of
drm_gpusvm_pages.  They also duplicate the canonical descriptions already
present in the kernel-doc of struct drm_gpusvm_pages_flags itself.

Drop the five @flags.* lines and replace them with a single @flags entry
that cross-references the type via kernel-doc's "&struct ..." syntax.
This eliminates the redundancy and removes warnings emitted by the new
parameterdescs check in scripts/kernel-doc:

  Excess struct member 'flags.migrate_devmem' description in
   'drm_gpusvm_pages'
  Excess struct member 'flags.unmapped' description in 'drm_gpusvm_pages'
  Excess struct member 'flags.partial_unmap' description in
   'drm_gpusvm_pages'
  Excess struct member 'flags.has_devmem_pages' description in
   'drm_gpusvm_pages'
  Excess struct member 'flags.has_dma_mapping' description in
   'drm_gpusvm_pages'

No functional change.

Assisted-by: Claude:claude-opus-4.6
Cc: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260501175956.4054088-1-shuicheng.lin@intel.com
 2026-05-07 00:17:15 -07:00
Balasubramani Vivekanandan
e68a60f9e6 drm/xe/cri: Add new PCI IDs 
Add support for new CRI PCI IDs.

Bspec: 77979
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://patch.msgid.link/20260505074855.3813063-2-balasubramani.vivekanandan@intel.com
Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
 2026-05-06 15:27:46 +05:30
Maarten Lankhorst
a2f9e4be82 Revert "drm/edid: add CTA Video Format Data Block support" 
This reverts commit e3953ff665.

Seems to have been accidentally pushed without mandatory review.

Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de> #irc
Acked-by: Maxime Ripard <mripard@kernel.org> #irc
 2026-05-06 11:22:15 +02:00
Dave Airlie
7a777dccc2 - Enable PIPEDMC_ERROR interrupt (Dibin) 
- Some general display fixes and cleanups (Ville, Nemesa,
    Suraj, Dibin, Arun, Desnes, Juha-Pekka, Vidya, Julian)
  - More refactor to split display code (Jani, Ville, Luca)
  - Panel Replay BW optimization (Animesh)
  - Integrate the sharpness filter properly into the scaler (Ville)
  - Watermark/SAGV fixes/cleanups/etc (Ville)
  - Restructure DP/HDMI sink format handling (Ville)
  - Eliminate FB usage from low level pinning code (Ville)
  - Some initial prep patches for always enable AS SDP (Ankit)
  - Many PSR related fixes (Jouni)
  - Fix MST VCPI lookup and modeset-lock splat (Suraj)
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Merge tag 'drm-intel-next-2026-05-05' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next

 - Enable PIPEDMC_ERROR interrupt (Dibin)
 - Some general display fixes and cleanups (Ville, Nemesa,
   Suraj, Dibin, Arun, Desnes, Juha-Pekka, Vidya, Julian)
 - More refactor to split display code (Jani, Ville, Luca)
 - Panel Replay BW optimization (Animesh)
 - Integrate the sharpness filter properly into the scaler (Ville)
 - Watermark/SAGV fixes/cleanups/etc (Ville)
 - Restructure DP/HDMI sink format handling (Ville)
 - Eliminate FB usage from low level pinning code (Ville)
 - Some initial prep patches for always enable AS SDP (Ankit)
 - Many PSR related fixes (Jouni)
 - Fix MST VCPI lookup and modeset-lock splat (Suraj)

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

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/afot1cjSpeAjYzg2@intel.com
 2026-05-06 10:55:14 +10:00
Dave Airlie
5077f45ecd 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)
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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
Eduardo Vasconcelos
5e5b64b6dc drm/crc: Fix typo in doc for drm_crtc_crc 
Fix a typo in the documentation for struct drm_crtc_crc
("occured." -> "occurred").

Signed-off-by: Eduardo Vasconcelos <eduardo@eduardovasconcelos.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260424183630.3764-1-eduardo@eduardovasconcelos.com
 2026-05-04 14:26:53 +02:00