drm/amdgpu: properly abstract scheduler timeout handling

The driver shouldn't mess with the scheduler internals.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Monk.Liu <monk.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu.h

@@ -759,7 +759,6 @@ void amdgpu_job_free_func(struct kref *refcount);
 int amdgpu_job_submit(struct amdgpu_job *job, struct amdgpu_ring *ring,
 		      struct amd_sched_entity *entity, void *owner,
 		      struct fence **f);
-void amdgpu_job_timeout_func(struct work_struct *work);
 
 struct amdgpu_ring {
 	struct amdgpu_device		*adev;

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

@@ -838,8 +838,7 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
 	p->job = NULL;
 
 	r = amd_sched_job_init(&job->base, &ring->sched,
-			       entity, amdgpu_job_timeout_func,
-			       amdgpu_job_free_func,
+			       entity, amdgpu_job_free_func,
 			       p->filp, &fence);
 	if (r) {
 		amdgpu_job_free(job);

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

@@ -34,13 +34,14 @@ static void amdgpu_job_free_handler(struct work_struct *ws)
 	amd_sched_job_put(&job->base);
 }
 
-void amdgpu_job_timeout_func(struct work_struct *work)
+static void amdgpu_job_timedout(struct amd_sched_job *s_job)
 {
-	struct amdgpu_job *job = container_of(work, struct amdgpu_job, base.work_tdr.work);
+	struct amdgpu_job *job = container_of(s_job, struct amdgpu_job, base);
+
 	DRM_ERROR("ring %s timeout, last signaled seq=%u, last emitted seq=%u\n",
-				job->base.sched->name,
-				(uint32_t)atomic_read(&job->ring->fence_drv.last_seq),
-				job->ring->fence_drv.sync_seq);
+		  job->base.sched->name,
+		  atomic_read(&job->ring->fence_drv.last_seq),
+		  job->ring->fence_drv.sync_seq);
 
 	amd_sched_job_put(&job->base);
 }
@@ -126,8 +127,7 @@ int amdgpu_job_submit(struct amdgpu_job *job, struct amdgpu_ring *ring,
 		return -EINVAL;
 
 	r = amd_sched_job_init(&job->base, &ring->sched,
-			       entity, amdgpu_job_timeout_func,
-			       amdgpu_job_free_func, owner, &fence);
+			       entity, amdgpu_job_free_func, owner, &fence);
 	if (r)
 		return r;
 
@@ -197,4 +197,5 @@ static struct fence *amdgpu_job_run(struct amd_sched_job *sched_job)
 const struct amd_sched_backend_ops amdgpu_sched_ops = {
 	.dependency = amdgpu_job_dependency,
 	.run_job = amdgpu_job_run,
+	.timedout_job = amdgpu_job_timedout,
 };

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

@@ -362,6 +362,14 @@ static void amd_sched_job_begin(struct amd_sched_job *s_job)
 	}
 }
 
+static void amd_sched_job_timedout(struct work_struct *work)
+{
+	struct amd_sched_job *job = container_of(work, struct amd_sched_job,
+						 work_tdr.work);
+
+	job->sched->ops->timedout_job(job);
+}
+
 /**
  * Submit a job to the job queue
  *
@@ -384,7 +392,6 @@ void amd_sched_entity_push_job(struct amd_sched_job *sched_job)
 int amd_sched_job_init(struct amd_sched_job *job,
 		       struct amd_gpu_scheduler *sched,
 		       struct amd_sched_entity *entity,
-		       void (*timeout_cb)(struct work_struct *work),
 		       void (*free_cb)(struct kref *refcount),
 		       void *owner, struct fence **fence)
 {
@@ -397,7 +404,7 @@ int amd_sched_job_init(struct amd_sched_job *job,
 		return -ENOMEM;
 
 	job->s_fence->s_job = job;
-	INIT_DELAYED_WORK(&job->work_tdr, timeout_cb);
+	INIT_DELAYED_WORK(&job->work_tdr, amd_sched_job_timedout);
 	job->free_callback = free_cb;
 
 	if (fence)

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

@@ -108,6 +108,7 @@ static inline struct amd_sched_fence *to_amd_sched_fence(struct fence *f)
 struct amd_sched_backend_ops {
 	struct fence *(*dependency)(struct amd_sched_job *sched_job);
 	struct fence *(*run_job)(struct amd_sched_job *sched_job);
+	void (*timedout_job)(struct amd_sched_job *sched_job);
 };
 
 enum amd_sched_priority {
@@ -153,7 +154,6 @@ void amd_sched_fence_signal(struct amd_sched_fence *fence);
 int amd_sched_job_init(struct amd_sched_job *job,
 		       struct amd_gpu_scheduler *sched,
 		       struct amd_sched_entity *entity,
-		       void (*timeout_cb)(struct work_struct *work),
 		       void (*free_cb)(struct kref* refcount),
 		       void *owner, struct fence **fence);
 static inline void amd_sched_job_get(struct amd_sched_job *job)