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drm/amdgpu: add entity only when first job come

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umd somtimes will create a context for every ring,
that means some entities wouldn't be used at all.

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chunming Zhou 2015-12-11 18:22:52 +08:00 committed by Alex Deucher
parent 2c1a278403
commit e8deea2d4b
1 changed files with 8 additions and 5 deletions
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13
drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
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@ -47,6 +47,8 @@ static void amd_sched_rq_init(struct amd_sched_rq *rq)
static void amd_sched_rq_add_entity(struct amd_sched_rq *rq,
struct amd_sched_entity *entity)
{
if (!list_empty(&entity->list))
return;
spin_lock(&rq->lock);
list_add_tail(&entity->list, &rq->entities);
spin_unlock(&rq->lock);
@ -55,6 +57,8 @@ static void amd_sched_rq_add_entity(struct amd_sched_rq *rq,
static void amd_sched_rq_remove_entity(struct amd_sched_rq *rq,
struct amd_sched_entity *entity)
{
if (list_empty(&entity->list))
return;
spin_lock(&rq->lock);
list_del_init(&entity->list);
if (rq->current_entity == entity)
@ -138,9 +142,6 @@ int amd_sched_entity_init(struct amd_gpu_scheduler *sched,
atomic_set(&entity->fence_seq, 0);
entity->fence_context = fence_context_alloc(1);
/* Add the entity to the run queue */
amd_sched_rq_add_entity(rq, entity);
return 0;
}
@ -302,9 +303,11 @@ static bool amd_sched_entity_in(struct amd_sched_job *sched_job)
spin_unlock(&entity->queue_lock);
/* first job wakes up scheduler */
if (first)
if (first) {
/* Add the entity to the run queue */
amd_sched_rq_add_entity(entity->rq, entity);
amd_sched_wakeup(sched);
}
return added;
}