[PATCH v2 00/20] Revert switching default DRM scheduler policy to fair

There was a late minute user regression report[1] so lets revert this so it can
be debugged in peace.

I have not been able to locally reproduce it yet, but at least a partial fix
looks to be this[2]. Further debug will be needed, possibly after the holiday/
vacation season is over.

[1] https://lore.kernel.org/dri-devel/TfhgV1W0W5LI6RWUO6J35B3R8QIYH_FN3Eihzdo_9PH39hfn1AVByT-QBPHmWiAR-L0Kqi2sppM_EhFPKwZPGmb5pFgpF2MrzeFzkZDmpG8=@proton.me/
[2] https://lore.kernel.org/dri-devel/[email protected]/

Cc: [email protected]
Cc: Matthew Brost <[email protected]>
Cc: Danilo Krummrich <[email protected]>
Cc: Philipp Stanner <[email protected]>
Cc: Christian König <[email protected]>

v2:
 * Forgot the SoBs.

Tvrtko Ursulin (20):
  Revert "drm/sched: Remove redundant entity->rq initialization and
    checks"
  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              |   1 +
 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       |   4 +-
 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      |  61 ++++++--
 drivers/gpu/drm/scheduler/sched_fence.c       |   2 +-
 drivers/gpu/drm/scheduler/sched_internal.h    |  15 +-
 drivers/gpu/drm/scheduler/sched_main.c        | 130 ++++++++++++++++--
 drivers/gpu/drm/scheduler/sched_rq.c          |  87 ++++++++----
 .../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 +++++-
 30 files changed, 319 insertions(+), 94 deletions(-)

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2.54.0