drm/amdgpu: remove amd_sched_wait_emit v2

Not used any more.

v2: remove amd_sched_emit as well.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c

@@ -77,8 +77,6 @@ static struct fence *amdgpu_sched_run_job(struct amd_gpu_scheduler *sched,
 			goto err;
 	}
 
-	amd_sched_emit(entity, sched_job->ibs[sched_job->num_ibs - 1].sequence);
-
 	mutex_unlock(&sched_job->job_lock);
 	return &fence->base;
 

drivers/gpu/drm/amd/scheduler/gpu_scheduler.c

@@ -202,7 +202,6 @@ int amd_sched_entity_init(struct amd_gpu_scheduler *sched,
 		return -EINVAL;
 
 	spin_lock_init(&entity->queue_lock);
-	atomic64_set(&entity->last_emitted_v_seq, seq_ring);
 	atomic64_set(&entity->last_queued_v_seq, seq_ring);
 	atomic64_set(&entity->last_signaled_v_seq, seq_ring);
 
@@ -329,53 +328,6 @@ int amd_sched_push_job(struct amd_gpu_scheduler *sched,
 	return 0;
 }
 
-/**
- * Wait for a virtual sequence number to be emitted.
- *
- * @c_entity	The pointer to a valid context entity
- * @seq         The virtual sequence number to wait
- * @intr	Interruptible or not
- * @timeout	Timeout in ms, wait infinitely if <0
- * @emit        wait for emit or signal
- *
- * return =0 signaled ,  <0 failed
-*/
-int amd_sched_wait_emit(struct amd_sched_entity *c_entity,
-			uint64_t seq,
-			bool intr,
-			long timeout)
-{
-	atomic64_t *v_seq = &c_entity->last_emitted_v_seq;
-	wait_queue_head_t *wait_queue = &c_entity->wait_emit;
-
-	if (intr && (timeout < 0)) {
-		wait_event_interruptible(
-			*wait_queue,
-			seq <= atomic64_read(v_seq));
-		return 0;
-	} else if (intr && (timeout >= 0)) {
-		wait_event_interruptible_timeout(
-			*wait_queue,
-			seq <= atomic64_read(v_seq),
-			msecs_to_jiffies(timeout));
-		return (seq <= atomic64_read(v_seq)) ?
-			0 : -1;
-	} else if (!intr && (timeout < 0)) {
-		wait_event(
-			*wait_queue,
-			seq <= atomic64_read(v_seq));
-		return 0;
-	} else if (!intr && (timeout >= 0)) {
-		wait_event_timeout(
-			*wait_queue,
-			seq <= atomic64_read(v_seq),
-			msecs_to_jiffies(timeout));
-		return (seq <= atomic64_read(v_seq)) ?
-			0 : -1;
-	}
-	return 0;
-}
-
 static void amd_sched_process_job(struct fence *f, struct fence_cb *cb)
 {
 	struct amd_sched_job *sched_job =
@@ -510,19 +462,6 @@ int amd_sched_destroy(struct amd_gpu_scheduler *sched)
 	return  0;
 }
 
-/**
- * Update emitted sequence and wake up the waiters, called by run_job
- * in driver side
- *
- * @entity The context entity
- * @seq The sequence number for the latest emitted job
-*/
-void amd_sched_emit(struct amd_sched_entity *c_entity, uint64_t seq)
-{
-	atomic64_set(&c_entity->last_emitted_v_seq, seq);
-	wake_up_all(&c_entity->wait_emit);
-}
-
 /**
  * Get next queued sequence number
  *

drivers/gpu/drm/amd/scheduler/gpu_scheduler.h

@@ -44,7 +44,6 @@ struct amd_sched_entity {
 	spinlock_t			lock;
 	/* the virtual_seq is unique per context per ring */
 	atomic64_t			last_queued_v_seq;
-	atomic64_t			last_emitted_v_seq;
 	atomic64_t			last_signaled_v_seq;
 	/* the job_queue maintains the jobs submitted by clients */
 	struct kfifo                    job_queue;
@@ -154,13 +153,6 @@ int amd_sched_push_job(struct amd_gpu_scheduler *sched,
 		       void *data,
 		       struct amd_sched_fence **fence);
 
-int amd_sched_wait_emit(struct amd_sched_entity *c_entity,
-			uint64_t seq,
-			bool intr,
-			long timeout);
-
-uint64_t amd_sched_get_handled_seq(struct amd_gpu_scheduler *sched);
-
 int amd_sched_entity_init(struct amd_gpu_scheduler *sched,
 			  struct amd_sched_entity *entity,
 			  struct amd_run_queue *rq,
@@ -168,8 +160,6 @@ int amd_sched_entity_init(struct amd_gpu_scheduler *sched,
 int amd_sched_entity_fini(struct amd_gpu_scheduler *sched,
 			  struct amd_sched_entity *entity);
 
-void amd_sched_emit(struct amd_sched_entity *c_entity, uint64_t seq);
-
 uint64_t amd_sched_next_queued_seq(struct amd_sched_entity *c_entity);
 
 struct amd_sched_fence *amd_sched_fence_create(