[PATCH 06/11] drm/amdgpu: remove amdgpu_sync_wait

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From: Christian König <christian.koenig@xxxxxxx>

Stop hiding bugs, instead print a proper error when the scheduler
doesn't handle all dependencies.

Signed-off-by: Christian König <christian.koenig@xxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h      |  1 -
 drivers/gpu/drm/amd/amdgpu/amdgpu_job.c  |  6 +-----
 drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c | 19 -------------------
 3 files changed, 1 insertion(+), 25 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 7d25977..2f4ab1b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -601,7 +601,6 @@ bool amdgpu_sync_is_idle(struct amdgpu_sync *sync);
 int amdgpu_sync_cycle_fences(struct amdgpu_sync *dst, struct amdgpu_sync *src,
 			     struct fence *fence);
 struct fence *amdgpu_sync_get_fence(struct amdgpu_sync *sync);
-int amdgpu_sync_wait(struct amdgpu_sync *sync);
 void amdgpu_sync_free(struct amdgpu_sync *sync);
 int amdgpu_sync_init(void);
 void amdgpu_sync_fini(void);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
index ddfed93..009e905 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
@@ -166,11 +166,7 @@ static struct fence *amdgpu_job_run(struct amd_sched_job *sched_job)
 	}
 	job = to_amdgpu_job(sched_job);
 
-	r = amdgpu_sync_wait(&job->sync);
-	if (r) {
-		DRM_ERROR("failed to sync wait (%d)\n", r);
-		return NULL;
-	}
+	BUG_ON(!amdgpu_sync_is_idle(&job->sync));
 
 	trace_amdgpu_sched_run_job(job);
 	r = amdgpu_ib_schedule(job->ring, job->num_ibs, job->ibs,
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
index e0ff1a1..c0ed5b9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
@@ -326,25 +326,6 @@ struct fence *amdgpu_sync_get_fence(struct amdgpu_sync *sync)
 	return NULL;
 }
 
-int amdgpu_sync_wait(struct amdgpu_sync *sync)
-{
-	struct amdgpu_sync_entry *e;
-	struct hlist_node *tmp;
-	int i, r;
-
-	hash_for_each_safe(sync->fences, i, tmp, e, node) {
-		r = fence_wait(e->fence, false);
-		if (r)
-			return r;
-
-		hash_del(&e->node);
-		fence_put(e->fence);
-		kmem_cache_free(amdgpu_sync_slab, e);
-	}
-
-	return 0;
-}
-
 /**
  * amdgpu_sync_free - free the sync object
  *
-- 
2.5.0

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