drm/amdgpu: clean up amd sched wait_ts and wait_signal

Remove code not used at the moment.
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

@@ -90,12 +90,6 @@ static void amdgpu_sched_process_job(struct amd_gpu_scheduler *sched, void *job)
 	ring = fence->ring;
 	adev = ring->adev;
 
-	if (sched_job->ctx) {
-		c_entity = &sched_job->ctx->rings[ring->idx].c_entity;
-		atomic64_set(&c_entity->last_signaled_v_seq,
-			     sched_job->ibs[sched_job->num_ibs - 1].sequence);
-	}
-
 	/* wake up users waiting for time stamp */
 	wake_up_all(&c_entity->wait_queue);
 

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

@@ -208,7 +208,6 @@ int amd_context_entity_init(struct amd_gpu_scheduler *sched,
 	entity->context_id = context_id;
 	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);
 
 	/* Add the entity to the run queue */
 	mutex_lock(&rq->lock);
@@ -317,20 +316,7 @@ int amd_sched_push_job(struct amd_gpu_scheduler *sched,
 }
 
 /**
- * Check the virtual sequence number for specified context
- *
- * @seq		The virtual sequence number to check
- * @c_entity	The pointer to a valid amd_context_entity
- *
- * return 0 if signaled, -1 else.
-*/
-int amd_sched_check_ts(struct amd_context_entity *c_entity, uint64_t seq)
-{
-	return (seq <= atomic64_read(&c_entity->last_signaled_v_seq)) ? 0 : -1;
-}
-
-/**
- * Wait for a virtual sequence number to be signaled or timeout
+ * 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
@@ -340,16 +326,13 @@ int amd_sched_check_ts(struct amd_context_entity *c_entity, uint64_t seq)
  *
  * return =0 signaled ,  <0 failed
 */
-static int amd_sched_wait(struct amd_context_entity *c_entity,
+int amd_sched_wait_emit(struct amd_context_entity *c_entity,
 			uint64_t seq,
 			bool intr,
-			  long timeout,
-			  bool emit)
+			long timeout)
 {
-	atomic64_t *v_seq = emit ? &c_entity->last_emitted_v_seq :
-		&c_entity->last_signaled_v_seq;
-	wait_queue_head_t *wait_queue = emit ? &c_entity->wait_emit :
-		&c_entity->wait_queue;
+	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(
@@ -379,22 +362,6 @@ static int amd_sched_wait(struct amd_context_entity *c_entity,
 	return 0;
 }
 
-int amd_sched_wait_signal(struct amd_context_entity *c_entity,
-			  uint64_t seq,
-			  bool intr,
-			  long timeout)
-{
-	return amd_sched_wait(c_entity, seq, intr, timeout, false);
-}
-
-int amd_sched_wait_emit(struct amd_context_entity *c_entity,
-			uint64_t seq,
-			bool intr,
-			long timeout)
-{
-	return amd_sched_wait(c_entity, seq, intr, timeout, true);
-}
-
 static int amd_sched_main(void *param)
 {
 	int r;

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

@@ -74,7 +74,6 @@ struct amd_context_entity {
 	/* 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;
 	pid_t				tgid;
 	uint32_t			context_id;
 	/* the job_queue maintains the jobs submitted by clients */
@@ -134,10 +133,6 @@ int amd_sched_push_job(struct amd_gpu_scheduler *sched,
 		       struct amd_context_entity *c_entity,
 		       void *job);
 
-int amd_sched_check_ts(struct amd_context_entity *c_entity, uint64_t seq);
-
-int amd_sched_wait_signal(struct amd_context_entity *c_entity,
-			  uint64_t seq, bool intr, long timeout);
 int amd_sched_wait_emit(struct amd_context_entity *c_entity,
 			uint64_t seq,
 			bool intr,