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drm/amd/sched: allow clients to edit an entity's rq v2

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This is useful for changing an entity's priority at runtime.

v2: don't modify the order of amd_sched_entity members

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Andres Rodriguez 2017-06-02 15:09:00 -04:00 committed by Alex Deucher
parent b6d8a43934
commit 9ebbaabee8
2 changed files with 25 additions and 2 deletions
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24
drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
View File

@ -133,6 +133,7 @@ int amd_sched_entity_init(struct amd_gpu_scheduler *sched,
entity->rq = rq;
entity->sched = sched;
spin_lock_init(&entity->rq_lock);
spin_lock_init(&entity->queue_lock);
r = kfifo_alloc(&entity->job_queue, jobs * sizeof(void *), GFP_KERNEL);
if (r)
@ -204,7 +205,6 @@ static bool amd_sched_entity_is_ready(struct amd_sched_entity *entity)
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))
@ -218,7 +218,7 @@ void amd_sched_entity_fini(struct amd_gpu_scheduler *sched,
else
r = wait_event_killable(sched->job_scheduled,
amd_sched_entity_is_idle(entity));
amd_sched_rq_remove_entity(rq, entity);
amd_sched_entity_set_rq(entity, NULL);
if (r) {
struct amd_sched_job *job;
@ -257,6 +257,24 @@ static void amd_sched_entity_clear_dep(struct dma_fence *f, struct dma_fence_cb
dma_fence_put(f);
}
void amd_sched_entity_set_rq(struct amd_sched_entity *entity,
struct amd_sched_rq *rq)
{
if (entity->rq == rq)
return;
spin_lock(&entity->rq_lock);
if (entity->rq)
amd_sched_rq_remove_entity(entity->rq, entity);
entity->rq = rq;
if (rq)
amd_sched_rq_add_entity(rq, entity);
spin_unlock(&entity->rq_lock);
}
bool amd_sched_dependency_optimized(struct dma_fence* fence,
struct amd_sched_entity *entity)
{
@ -354,7 +372,9 @@ static bool amd_sched_entity_in(struct amd_sched_job *sched_job)
/* first job wakes up scheduler */
if (first) {
/* Add the entity to the run queue */
spin_lock(&entity->rq_lock);
amd_sched_rq_add_entity(entity->rq, entity);
spin_unlock(&entity->rq_lock);
amd_sched_wakeup(sched);
}
return added;

3
drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
View File

@ -39,6 +39,7 @@ struct amd_sched_rq;
struct amd_sched_entity {
struct list_head list;
struct amd_sched_rq *rq;
spinlock_t rq_lock;
struct amd_gpu_scheduler *sched;
spinlock_t queue_lock;
@ -154,6 +155,8 @@ int amd_sched_entity_init(struct amd_gpu_scheduler *sched,
void amd_sched_entity_fini(struct amd_gpu_scheduler *sched,
struct amd_sched_entity *entity);
void amd_sched_entity_push_job(struct amd_sched_job *sched_job);
void amd_sched_entity_set_rq(struct amd_sched_entity *entity,
struct amd_sched_rq *rq);
int amd_sched_fence_slab_init(void);
void amd_sched_fence_slab_fini(void);