OpenE2K/linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

drm/sched: Avoid data corruptions

Browse Source 
[ Upstream commit 0b10ab80695d61422337ede6ff496552d8ace99d ]

Wait for all dependencies of a job  to complete before
killing it to avoid data corruptions.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210519141407.88444-1-andrey.grodzovsky@amd.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Andrey Grodzovsky 2021-05-19 10:14:07 -04:00 committed by Greg Kroah-Hartman
parent 6ebfdf01cc
commit c32d0f0e16
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/drm/scheduler/sched_entity.c
View File

@ -235,11 +235,16 @@ static void drm_sched_entity_kill_jobs_cb(struct dma_fence *f,
static void drm_sched_entity_kill_jobs(struct drm_sched_entity *entity)
{
struct drm_sched_job *job;
struct dma_fence *f;
int r;
while ((job = to_drm_sched_job(spsc_queue_pop(&entity->job_queue)))) {
struct drm_sched_fence *s_fence = job->s_fence;
/* Wait for all dependencies to avoid data corruptions */
while ((f = job->sched->ops->dependency(job, entity)))
dma_fence_wait(f, false);
drm_sched_fence_scheduled(s_fence);
dma_fence_set_error(&s_fence->finished, -ESRCH);