diff options
| author | Andrey Grodzovsky <andrey.grodzovsky@amd.com> | 2019-10-24 15:39:06 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-10-25 16:50:11 -0400 |
| commit | e91e5f080e03e0c28742f0aa4051c7cefafd7cdd (patch) | |
| tree | d627327b0a35afd103d60817b2c09d2b3bc31f4c /drivers/gpu/drm/scheduler | |
| parent | 42ce4b666da072e778588182e5627943f91a6e09 (diff) | |
| download | linux-e91e5f080e03e0c28742f0aa4051c7cefafd7cdd.tar.bz2 | |
drm/sched: Set error to s_fence if HW job submission failed.
Problem:
When run_job fails and HW fence returned is NULL we still signal
the s_fence to avoid hangs but the user has no way of knowing if
the actual HW job was ran and finished.
Fix:
Allow .run_job implementations to return ERR_PTR in the fence pointer
returned and then set this error for s_fence->finished fence so whoever
wait on this fence can inspect the signaled fence for an error.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/scheduler')
| -rw-r--r-- | drivers/gpu/drm/scheduler/sched_main.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c index 9a0ee74d82dc..f39b97ed4ade 100644 --- a/drivers/gpu/drm/scheduler/sched_main.c +++ b/drivers/gpu/drm/scheduler/sched_main.c @@ -479,6 +479,7 @@ void drm_sched_resubmit_jobs(struct drm_gpu_scheduler *sched) struct drm_sched_job *s_job, *tmp; uint64_t guilty_context; bool found_guilty = false; + struct dma_fence *fence; list_for_each_entry_safe(s_job, tmp, &sched->ring_mirror_list, node) { struct drm_sched_fence *s_fence = s_job->s_fence; @@ -492,7 +493,16 @@ void drm_sched_resubmit_jobs(struct drm_gpu_scheduler *sched) dma_fence_set_error(&s_fence->finished, -ECANCELED); dma_fence_put(s_job->s_fence->parent); - s_job->s_fence->parent = sched->ops->run_job(s_job); + fence = sched->ops->run_job(s_job); + + if (IS_ERR_OR_NULL(fence)) { + s_job->s_fence->parent = NULL; + dma_fence_set_error(&s_fence->finished, PTR_ERR(fence)); + } else { + s_job->s_fence->parent = fence; + } + + } } EXPORT_SYMBOL(drm_sched_resubmit_jobs); @@ -720,7 +730,7 @@ static int drm_sched_main(void *param) fence = sched->ops->run_job(sched_job); drm_sched_fence_scheduled(s_fence); - if (fence) { + if (!IS_ERR_OR_NULL(fence)) { s_fence->parent = dma_fence_get(fence); r = dma_fence_add_callback(fence, &sched_job->cb, drm_sched_process_job); @@ -730,8 +740,11 @@ static int drm_sched_main(void *param) DRM_ERROR("fence add callback failed (%d)\n", r); dma_fence_put(fence); - } else + } else { + + dma_fence_set_error(&s_fence->finished, PTR_ERR(fence)); drm_sched_process_job(NULL, &sched_job->cb); + } wake_up(&sched->job_scheduled); } |