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drm/amdgpu: discard commands of killed processes 

When a process is killed we shouldn't submit all waiting jobs, but instead
clean up as fast as possible.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2017-08-21 14:27:51 +02:00 committed by Alex Deucher
parent 2e8f9fbe98
commit 6af0883ed9
1 changed files with 19 additions and 4 deletions
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23
drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
View File

@ -205,17 +205,32 @@ void amd_sched_entity_fini(struct amd_gpu_scheduler *sched,
struct amd_sched_entity *entity)
{
struct amd_sched_rq *rq = entity->rq;
int r;
if (!amd_sched_entity_is_initialized(sched, entity))
return;
/**
* The client will not queue more IBs during this fini, consume existing
* queued IBs
* queued IBs or discard them on SIGKILL
*/
wait_event(sched->job_scheduled, amd_sched_entity_is_idle(entity));
if ((current->flags & PF_SIGNALED) && current->exit_code == SIGKILL)
r = -ERESTARTSYS;
else
r = wait_event_killable(sched->job_scheduled,
amd_sched_entity_is_idle(entity));
amd_sched_rq_remove_entity(rq, entity);
if (r) {
struct amd_sched_job *job;
/* Park the kernel for a moment to make sure it isn't processing
* our enity.
*/
kthread_park(sched->thread);
kthread_unpark(sched->thread);
while (kfifo_out(&entity->job_queue, &job, sizeof(job)))
sched->ops->free_job(job);
}
kfifo_free(&entity->job_queue);
}