Hi Matt,
On 9/19/23 07:01, Matthew Brost wrote:
As a prerequisite to merging the new Intel Xe DRM driver [1] [2], we
have been asked to merge our common DRM scheduler patches first.
This a continuation of a RFC [3] with all comments addressed, ready for
a full review, and hopefully in state which can merged in the near
future. More details of this series can found in the cover letter of the
RFC [3].
These changes have been tested with the Xe driver.
v2:
- Break run job, free job, and process message in own work items
- This might break other drivers as run job and free job now can run in
parallel, can fix up if needed
v3:
- Include missing patch 'drm/sched: Add drm_sched_submit_* helpers'
- Fix issue with setting timestamp to early
- Don't dequeue jobs for single entity after calling entity fini
- Flush pending jobs on entity fini
- Add documentation for entity teardown
- Add Matthew Brost to maintainers of DRM scheduler
v4:
- Drop message interface
- Drop 'Flush pending jobs on entity fini'
- Drop 'Add documentation for entity teardown'
- Address all feedback
There is some feedback from V3 that doesn't seem to be addressed yet.
(1) Document tear down of struct drm_gpu_scheduler. [1]
(2) Implement helpers to tear down struct drm_gpu_scheduler. [2]
(3) Document implications of using a workqueue in terms of free_job() being
or not being part of the fence signaling path respectively. [3]
I think at least (1) and (3) should be part of this series. I think (2) could
also happen subsequently. Christian's idea [2] how to address this is quite
interesting, but might exceed the scope of this series.
I will try to rebase my Nouveau changes onto your V4 tomorrow for a quick test.
- Danilo
[1] https://lore.kernel.org/all/20230912021615.2086698-1-matthew.brost@xxxxxxxxx/T/#m2e8c1c1e68e8127d5dd62509b5e424a12217300b
[2] https://lore.kernel.org/all/20230912021615.2086698-1-matthew.brost@xxxxxxxxx/T/#m16a0d6fa2e617383776515af45d3c6b9db543d47
[3] https://lore.kernel.org/all/20230912021615.2086698-1-matthew.brost@xxxxxxxxx/T/#m807ff95284089fdb51985f1c187666772314bd8a
Matt
Matthew Brost (10):
drm/sched: Add drm_sched_submit_* helpers
drm/sched: Convert drm scheduler to use a work queue rather than
kthread
drm/sched: Move schedule policy to scheduler
drm/sched: Add DRM_SCHED_POLICY_SINGLE_ENTITY scheduling policy
drm/sched: Split free_job into own work item
drm/sched: Add drm_sched_start_timeout_unlocked helper
drm/sched: Start submission before TDR in drm_sched_start
drm/sched: Submit job before starting TDR
drm/sched: Add helper to queue TDR immediately for current and future
jobs
drm/sched: Update maintainers of GPU scheduler
MAINTAINERS | 1 +
.../drm/amd/amdgpu/amdgpu_amdkfd_arcturus.c | 2 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 15 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 15 +-
drivers/gpu/drm/etnaviv/etnaviv_sched.c | 5 +-
drivers/gpu/drm/lima/lima_sched.c | 5 +-
drivers/gpu/drm/msm/adreno/adreno_device.c | 6 +-
drivers/gpu/drm/msm/msm_ringbuffer.c | 5 +-
drivers/gpu/drm/nouveau/nouveau_sched.c | 5 +-
drivers/gpu/drm/panfrost/panfrost_job.c | 5 +-
drivers/gpu/drm/scheduler/sched_entity.c | 85 ++-
drivers/gpu/drm/scheduler/sched_fence.c | 2 +-
drivers/gpu/drm/scheduler/sched_main.c | 491 ++++++++++++------
drivers/gpu/drm/v3d/v3d_sched.c | 25 +-
include/drm/gpu_scheduler.h | 48 +-
15 files changed, 495 insertions(+), 220 deletions(-)
