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drm/scheduler: remove timeout work_struct from drm_sched_job (v3)

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having a delayed work item per job is redundant as we only need one
per scheduler to track the time out the currently executing job.

v2: the first element of the ring mirror list is the currently
executing job so we don't need a additional variable for it

v3: squash in fixes for v3d and etnaviv

Signed-off-by: Nayan Deshmukh <nayan26deshmukh@gmail.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Nayan Deshmukh
2018-09-26 02:09:02 +09:00
committed by Alex Deucher
parent 3ea81f7125
commit 6a96243056
4 changed files with 21 additions and 20 deletions
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31
drivers/gpu/drm/scheduler/sched_main.c
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@@ -197,19 +197,15 @@ static void drm_sched_job_finish(struct work_struct *work)
* manages to find this job as the next job in the list, the fence
* signaled check below will prevent the timeout to be restarted.
*/
cancel_delayed_work_sync(&s_job->work_tdr);
cancel_delayed_work_sync(&sched->work_tdr);
spin_lock(&sched->job_list_lock);
/* queue TDR for next job */
if (sched->timeout != MAX_SCHEDULE_TIMEOUT &&
!list_is_last(&s_job->node, &sched->ring_mirror_list)) {
struct drm_sched_job *next = list_next_entry(s_job, node);
if (!dma_fence_is_signaled(&next->s_fence->finished))
schedule_delayed_work(&next->work_tdr, sched->timeout);
}
/* remove job from ring_mirror_list */
list_del(&s_job->node);
/* queue TDR for next job */
if (sched->timeout != MAX_SCHEDULE_TIMEOUT &&
!list_empty(&sched->ring_mirror_list))
schedule_delayed_work(&sched->work_tdr, sched->timeout);
spin_unlock(&sched->job_list_lock);
dma_fence_put(&s_job->s_fence->finished);
@@ -236,16 +232,21 @@ static void drm_sched_job_begin(struct drm_sched_job *s_job)
if (sched->timeout != MAX_SCHEDULE_TIMEOUT &&
list_first_entry_or_null(&sched->ring_mirror_list,
struct drm_sched_job, node) == s_job)
schedule_delayed_work(&s_job->work_tdr, sched->timeout);
schedule_delayed_work(&sched->work_tdr, sched->timeout);
spin_unlock(&sched->job_list_lock);
}
static void drm_sched_job_timedout(struct work_struct *work)
{
struct drm_sched_job *job = container_of(work, struct drm_sched_job,
work_tdr.work);
struct drm_gpu_scheduler *sched;
struct drm_sched_job *job;
job->sched->ops->timedout_job(job);
sched = container_of(work, struct drm_gpu_scheduler, work_tdr.work);
job = list_first_entry_or_null(&sched->ring_mirror_list,
struct drm_sched_job, node);
if (job)
job->sched->ops->timedout_job(job);
}
/**
@@ -315,7 +316,7 @@ void drm_sched_job_recovery(struct drm_gpu_scheduler *sched)
s_job = list_first_entry_or_null(&sched->ring_mirror_list,
struct drm_sched_job, node);
if (s_job && sched->timeout != MAX_SCHEDULE_TIMEOUT)
schedule_delayed_work(&s_job->work_tdr, sched->timeout);
schedule_delayed_work(&sched->work_tdr, sched->timeout);
list_for_each_entry_safe(s_job, tmp, &sched->ring_mirror_list, node) {
struct drm_sched_fence *s_fence = s_job->s_fence;
@@ -384,7 +385,6 @@ int drm_sched_job_init(struct drm_sched_job *job,
INIT_WORK(&job->finish_work, drm_sched_job_finish);
INIT_LIST_HEAD(&job->node);
INIT_DELAYED_WORK(&job->work_tdr, drm_sched_job_timedout);
return 0;
}
@@ -575,6 +575,7 @@ int drm_sched_init(struct drm_gpu_scheduler *sched,
INIT_LIST_HEAD(&sched->ring_mirror_list);
spin_lock_init(&sched->job_list_lock);
atomic_set(&sched->hw_rq_count, 0);
INIT_DELAYED_WORK(&sched->work_tdr, drm_sched_job_timedout);
atomic_set(&sched->num_jobs, 0);
atomic64_set(&sched->job_id_count, 0);