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drm/amdgpu: add per ring reset support (v5)

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If a specific job is hung, try and reset just the
ring associated with the job.

v2: move to amdgpu_job.c
v3: fix drm_sched_stop() handling when ring reset fails
v4: drop unnecessary amdgpu_fence_driver_clear_job_fences() and
    drm_sched_increase_karma()
v5: rework sched_stop handling

Acked-by: Vitaly Prosyak <vitaly.prosyak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2024-06-03 14:38:20 -04:00
parent 57a372f676
commit 15789fa0f0
1 changed files with 19 additions and 0 deletions
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19
drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
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@ -72,6 +72,25 @@ static enum drm_gpu_sched_stat amdgpu_job_timedout(struct drm_sched_job *s_job)
dma_fence_set_error(&s_job->s_fence->finished, -ETIME);
/* attempt a per ring reset */
if (amdgpu_gpu_recovery &&
ring->funcs->reset) {
/* stop the scheduler, but don't mess with the
* bad job yet because if ring reset fails
* we'll fall back to full GPU reset.
*/
drm_sched_wqueue_stop(&ring->sched);
r = amdgpu_ring_reset(ring, job->vmid);
if (!r) {
if (amdgpu_ring_sched_ready(ring))
drm_sched_stop(&ring->sched, s_job);
amdgpu_fence_driver_force_completion(ring);
if (amdgpu_ring_sched_ready(ring))
drm_sched_start(&ring->sched, true);
goto exit;
}
}
if (amdgpu_device_should_recover_gpu(ring->adev)) {
struct amdgpu_reset_context reset_context;
memset(&reset_context, 0, sizeof(reset_context));