From 9ebbaabee858dcecb251d64ecb1e639a1590fff6 Mon Sep 17 00:00:00 2001 From: Andres Rodriguez Date: Fri, 2 Jun 2017 15:09:00 -0400 Subject: drm/amd/sched: allow clients to edit an entity's rq v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Andres Rodriguez Acked-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/scheduler/gpu_scheduler.c | 24 ++++++++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-) (limited to 'drivers/gpu/drm/amd/scheduler/gpu_scheduler.c') diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c index 08e1332d814a..59f1325d975c 100644 --- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c +++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c @@ -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; -- cgit From 7fd5e36caec1598c49ef97d3e53cdd89c1da2770 Mon Sep 17 00:00:00 2001 From: Christian König Date: Fri, 13 Oct 2017 10:58:15 +0200 Subject: drm/amd/sched: fix job tear down order v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Move the trace before we signal the scheduler fence and drop the scheduler fence reference directly before we free the job. v2: keep extra s_fence reference Signed-off-by: Christian König Reviewed-by: Liu, Monk Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/scheduler/gpu_scheduler.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers/gpu/drm/amd/scheduler/gpu_scheduler.c') diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c index 59f1325d975c..e4d3b4ec4e92 100644 --- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c +++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c @@ -406,6 +406,7 @@ static void amd_sched_job_finish(struct work_struct *work) schedule_delayed_work(&next->work_tdr, sched->timeout); } spin_unlock(&sched->job_list_lock); + dma_fence_put(&s_job->s_fence->finished); sched->ops->free_job(s_job); } @@ -586,6 +587,7 @@ static void amd_sched_process_job(struct dma_fence *f, struct dma_fence_cb *cb) container_of(cb, struct amd_sched_fence, cb); struct amd_gpu_scheduler *sched = s_fence->sched; + dma_fence_get(&s_fence->finished); atomic_dec(&sched->hw_rq_count); amd_sched_fence_finished(s_fence); @@ -638,9 +640,6 @@ static int amd_sched_main(void *param) fence = sched->ops->run_job(sched_job); amd_sched_fence_scheduled(s_fence); - /* amd_sched_process_job drops the job's reference of the fence. */ - sched_job->s_fence = NULL; - if (fence) { s_fence->parent = dma_fence_get(fence); r = dma_fence_add_callback(fence, &s_fence->cb, -- cgit