[PULL] drm-misc-fixes

Hi Dave, Sima,

A few fixes and a bunch of reverts due to performance regressions with the gpu scheduler fair policy.

Kind regards,
~Maarten Lankhorst

drm-misc-fixes-2026-08-13:
drm-misc-fixes for v7.3:
- Revert fair scheduler patches and mark fair policy as experimental due
  to reported regressions.
- Fix OOB read in connector/hdmi infoframe.
- Handle invalid scaling parameters and empty messages in log target.
- Skip attempting to populate unmapped pages in amdxdna.
The following changes since commit db2ddb87143519e20a95aa36c60b36107b736a58:

  Linux 7.2-rc7 (2026-08-09 14:54:50 -0700)

are available in the Git repository at:

  https://gitlab.freedesktop.org/drm/misc/kernel.git tags/drm-misc-fixes-2026-08-13

for you to fetch changes up to f4f2bba28df9b9aaa00262a462139dbbcdc38d9f:

  drm/log: Fix infinite loop when scale is too large for display (2026-08-13 15:49:40 +0200)

----------------------------------------------------------------
drm-misc-fixes for v7.3:
- Revert fair scheduler patches and mark fair policy as experimental due
  to reported regressions.
- Fix OOB read in connector/hdmi infoframe.
- Handle invalid scaling parameters and empty messages in log target.
- Skip attempting to populate unmapped pages in amdxdna.

----------------------------------------------------------------
John Harrison (1):
      drm/connector/hdmi: Fix out of bounds memory read

Lizhi Hou (1):
      accel/amdxdna: Skip unmapped range in aie2_populate_range()

Maarten Lankhorst (1):
      Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Shixiong Ou (3):
      drm/log: Fix division by zero when scale module parameter is 0
      drm/log: Fix out-of-bounds read on empty message length
      drm/log: Fix infinite loop when scale is too large for display

Tvrtko Ursulin (19):
      Revert "drm/sched: Remove drm_sched_init_args->num_rqs"
      Revert "drm/xe: Remove drm_sched_init_args->num_rqs usage"
      Revert "drm/v3d: Remove drm_sched_init_args->num_rqs usage"
      Revert "drm/sched: Remove drm_sched_init_args->num_rqs usage"
      Revert "drm/panthor: Remove drm_sched_init_args->num_rqs usage"
      Revert "drm/panfrost: Remove drm_sched_init_args->num_rqs usage"
      Revert "drm/nouveau: Remove drm_sched_init_args->num_rqs usage"
      Revert "drm/msm: Remove drm_sched_init_args->num_rqs usage"
      Revert "drm/lima: Remove drm_sched_init_args->num_rqs usage"
      Revert "drm/imagination: Remove drm_sched_init_args->num_rqs usage"
      Revert "drm/etnaviv: Remove drm_sched_init_args->num_rqs usage"
      Revert "drm/amdgpu: Remove drm_sched_init_args->num_rqs usage"
      Revert "accel/ethosu: Remove drm_sched_init_args->num_rqs usage"
      Revert "accel/rocket: Remove drm_sched_init_args->num_rqs usage"
      Revert "accel/amdxdna: Remove drm_sched_init_args->num_rqs usage"
      Revert "drm/sched: Embed run queue singleton into the scheduler"
      Revert "drm/sched: Remove FIFO and RR and simplify to a single run queue"
      Revert "drm/sched: Switch default policy to fair"
      drm/sched: Mark fair policy as experimental

 drivers/accel/amdxdna/aie2_ctx.c                 |  17 ++++
 drivers/accel/ethosu/ethosu_job.c                |   1 +
 drivers/accel/rocket/rocket_job.c                |   1 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c           |   6 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c       |   1 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_job.c          |  27 ++---
 drivers/gpu/drm/amd/amdgpu/amdgpu_job.h          |   5 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h        |   8 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c      |   8 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c          |   8 +-
 drivers/gpu/drm/clients/drm_log.c                |  12 +++
 drivers/gpu/drm/display/drm_hdmi_state_helper.c  |   3 +-
 drivers/gpu/drm/etnaviv/etnaviv_sched.c          |   1 +
 drivers/gpu/drm/imagination/pvr_queue.c          |   1 +
 drivers/gpu/drm/lima/lima_sched.c                |   1 +
 drivers/gpu/drm/msm/msm_gem_vma.c                |   1 +
 drivers/gpu/drm/msm/msm_ringbuffer.c             |   1 +
 drivers/gpu/drm/nouveau/nouveau_sched.c          |   1 +
 drivers/gpu/drm/panfrost/panfrost_job.c          |   1 +
 drivers/gpu/drm/panthor/panthor_mmu.c            |   1 +
 drivers/gpu/drm/panthor/panthor_sched.c          |   1 +
 drivers/gpu/drm/scheduler/sched_entity.c         |  52 +++++++---
 drivers/gpu/drm/scheduler/sched_fence.c          |   2 +-
 drivers/gpu/drm/scheduler/sched_internal.h       |  15 ++-
 drivers/gpu/drm/scheduler/sched_main.c           | 121 ++++++++++++++++++++---
 drivers/gpu/drm/scheduler/sched_rq.c             |  89 ++++++++++++-----
 drivers/gpu/drm/scheduler/tests/mock_scheduler.c |   1 +
 drivers/gpu/drm/v3d/v3d_sched.c                  |   1 +
 drivers/gpu/drm/xe/xe_dep_scheduler.c            |   1 +
 drivers/gpu/drm/xe/xe_execlist.c                 |   1 +
 drivers/gpu/drm/xe/xe_gpu_scheduler.c            |   1 +
 include/drm/gpu_scheduler.h                      |  42 +++++++-
 32 files changed, 335 insertions(+), 97 deletions(-)