linux.git/include/drm, branch v7.2

Revert "drm/sched: Remove FIFO and RR and simplify to a single run queue"

2026-08-11T16:34:10+00:00

This reverts commit 77a6809f1dc39376116f8d769a0d2630dc95ad79.

Signed-off-by: Tvrtko Ursulin 
Cc: Luke.Wildhardt@proton.me
Cc: Matthew Brost 
Cc: Danilo Krummrich 
Cc: Philipp Stanner 
Cc: Christian König 
Signed-off-by: Tvrtko Ursulin 
Link: https://lore.kernel.org/r/20260811163139.99746-18-tvrtko.ursulin@igalia.com

Revert "drm/sched: Embed run queue singleton into the scheduler"

2026-08-11T16:34:06+00:00

This reverts commit 16e7698bc04d3dd19d95a688e4b0297a0e28a93b.

Signed-off-by: Tvrtko Ursulin 
Cc: Luke.Wildhardt@proton.me
Cc: Matthew Brost 
Cc: Danilo Krummrich 
Cc: Philipp Stanner 
Cc: Christian König 
Signed-off-by: Tvrtko Ursulin 
Link: https://lore.kernel.org/r/20260811163139.99746-17-tvrtko.ursulin@igalia.com

Revert "drm/sched: Remove drm_sched_init_args->num_rqs"

2026-08-11T16:34:00+00:00

This reverts commit d09339388b778f04dd9e638befa2594c9cb4290b.

Signed-off-by: Tvrtko Ursulin 
Cc: Luke.Wildhardt@proton.me
Cc: Matthew Brost 
Cc: Danilo Krummrich 
Cc: Philipp Stanner 
Cc: Christian König 
Signed-off-by: Tvrtko Ursulin 
Link: https://lore.kernel.org/r/20260811163139.99746-2-tvrtko.ursulin@igalia.com

Merge tag 'drm-misc-fixes-2026-07-24' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

2026-07-24T08:30:29+00:00

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 

From: Maarten Lankhorst 
Link: https://patch.msgid.link/07284633-6b9b-40f9-8949-b1516a42a34c@linux.intel.com

drm/amd/display: Force PWM backlight on Lenovo Legion 5 15ARH05

2026-07-17T21:41:15+00:00

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 
Tested-by: Alessandro Rinaldi 
Reviewed-by: George Zhang 
Signed-off-by: Alex Deucher 
(cherry picked from commit 81b39f43e7e53589491e2eef6bad5389626b4b9c)
Cc: stable@vger.kernel.org

drm/ttm/pool: back up at native page order

2026-07-17T16:09:27+00:00

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 
Cc: Huang Rui 
Cc: Matthew Auld 
Cc: Maarten Lankhorst 
Cc: Maxime Ripard 
Cc: Thomas Zimmermann 
Cc: David Airlie 
Cc: Simona Vetter 
Cc: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org
Fixes: b63d715b8090 ("drm/ttm/pool, drm/ttm/tt: Provide a helper to shrink pages")
Suggested-by: Thomas Hellström 
Assisted-by: Claude:claude-opus-4.6
Signed-off-by: Matthew Brost 
Reviewed-by: Thomas Hellström 
Link: https://patch.msgid.link/20260716201358.4086085-1-matthew.brost@intel.com

drm/drm_exec: avoid indirect goto

2026-07-07T12:02:53+00:00

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 
Signed-off-by: Christian König 
Fixes: 9920249a5288 ("drm/amdgpu: convert amdgpu_vm_lock_by_pasid() to drm_exec")
Reported-by: kernel test robot 
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 
Reviewed-by: Dave Airlie 
Link: https://lore.kernel.org/r/20260704084133.122053-1-christian.koenig@amd.com

drm/ras: include linux/types.h in drm_ras.h

2026-06-30T12:51:24+00:00

drm_ras.h uses u32. Include linux/types.h for it.

Reviewed-by: Thomas Zimmermann 
Link: https://patch.msgid.link/20260615152949.1899358-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula

drm/fixed: fix kernel-doc for drm_sm2fixp()

2026-06-30T09:31:20+00:00

Fix the kernel-doc comment for drm_sm2fixp().

Reviewed-by: Thomas Zimmermann 
Link: https://patch.msgid.link/20260615153012.1899576-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula

drm/dp: fix kernel-doc for struct drm_dp_as_sdp

2026-06-30T09:30:40+00:00

Add the missing coasting_vtotal kernel-doc member documentation for
struct drm_dp_as_sdp.

Reviewed-by: Thomas Zimmermann 
Link: https://patch.msgid.link/20260615153027.1899784-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula