drm/amdgpu: move scheduler fence callback into fence v2

And call the processed callback directly after submitting the job.

v2: split adding error handling into separate patch.

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

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

@@ -319,15 +319,13 @@ amd_sched_select_job(struct amd_gpu_scheduler *sched)
 
 static void amd_sched_process_job(struct fence *f, struct fence_cb *cb)
 {
-	struct amd_sched_job *sched_job =
-		container_of(cb, struct amd_sched_job, cb);
-	struct amd_gpu_scheduler *sched;
+	struct amd_sched_fence *s_fence =
+		container_of(cb, struct amd_sched_fence, cb);
+	struct amd_gpu_scheduler *sched = s_fence->scheduler;
 
-	sched = sched_job->sched;
-	amd_sched_fence_signal(sched_job->s_fence);
 	atomic_dec(&sched->hw_rq_count);
-	fence_put(&sched_job->s_fence->base);
-	sched->ops->process_job(sched_job);
+	amd_sched_fence_signal(s_fence);
+	fence_put(&s_fence->base);
 	wake_up_interruptible(&sched->wake_up_worker);
 }
 
@@ -341,6 +339,7 @@ static int amd_sched_main(void *param)
 
 	while (!kthread_should_stop()) {
 		struct amd_sched_entity *entity;
+		struct amd_sched_fence *s_fence;
 		struct amd_sched_job *job;
 		struct fence *fence;
 
@@ -352,19 +351,21 @@ static int amd_sched_main(void *param)
 			continue;
 
 		entity = job->s_entity;
+		s_fence = job->s_fence;
 		atomic_inc(&sched->hw_rq_count);
 		fence = sched->ops->run_job(job);
+		sched->ops->process_job(job);
 		if (fence) {
-			r = fence_add_callback(fence, &job->cb,
+			r = fence_add_callback(fence, &s_fence->cb,
 					       amd_sched_process_job);
 			if (r == -ENOENT)
-				amd_sched_process_job(fence, &job->cb);
+				amd_sched_process_job(fence, &s_fence->cb);
 			else if (r)
 				DRM_ERROR("fence add callback failed (%d)\n", r);
 			fence_put(fence);
 		} else {
 			DRM_ERROR("Failed to run job!\n");
-			amd_sched_process_job(NULL, &job->cb);
+			amd_sched_process_job(NULL, &s_fence->cb);
 		}
 
 		count = kfifo_out(&entity->job_queue, &job, sizeof(job));

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

@@ -62,13 +62,13 @@ struct amd_sched_rq {
 
 struct amd_sched_fence {
 	struct fence                    base;
+	struct fence_cb                 cb;
 	struct amd_gpu_scheduler	*scheduler;
 	spinlock_t			lock;
 	void                            *owner;
 };
 
 struct amd_sched_job {
-	struct fence_cb                 cb;
 	struct amd_gpu_scheduler        *sched;
 	struct amd_sched_entity         *s_entity;
 	struct amd_sched_fence          *s_fence;