1 files changed, 44 insertions, 14 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
index 090e66a1b284..dcd8c066bc1f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
@@ -259,6 +259,14 @@ int amdgpu_sync_resv(struct amdgpu_device *adev, struct amdgpu_sync *sync,
 	return 0;
 }
 
+/* Free the entry back to the slab */
+static void amdgpu_sync_entry_free(struct amdgpu_sync_entry *e)
+{
+	hash_del(&e->node);
+	dma_fence_put(e->fence);
+	kmem_cache_free(amdgpu_sync_slab, e);
+}
+
 /**
  * amdgpu_sync_peek_fence - get the next fence not signaled yet
  *
@@ -280,9 +288,7 @@ struct dma_fence *amdgpu_sync_peek_fence(struct amdgpu_sync *sync,
 		struct drm_sched_fence *s_fence = to_drm_sched_fence(f);
 
 		if (dma_fence_is_signaled(f)) {
-			hash_del(&e->node);
-			dma_fence_put(f);
-			kmem_cache_free(amdgpu_sync_slab, e);
+			amdgpu_sync_entry_free(e);
 			continue;
 		}
 		if (ring && s_fence) {
@@ -355,15 +361,44 @@ int amdgpu_sync_clone(struct amdgpu_sync *source, struct amdgpu_sync *clone)
 			if (r)
 				return r;
 		} else {
-			hash_del(&e->node);
-			dma_fence_put(f);
-			kmem_cache_free(amdgpu_sync_slab, e);
+			amdgpu_sync_entry_free(e);
 		}
 	}
 
 	return 0;
 }
 
+/**
+ * amdgpu_sync_push_to_job - push fences into job
+ * @sync: sync object to get the fences from
+ * @job: job to push the fences into
+ *
+ * Add all unsignaled fences from sync to job.
+ */
+int amdgpu_sync_push_to_job(struct amdgpu_sync *sync, struct amdgpu_job *job)
+{
+	struct amdgpu_sync_entry *e;
+	struct hlist_node *tmp;
+	struct dma_fence *f;
+	int i, r;
+
+	hash_for_each_safe(sync->fences, i, tmp, e, node) {
+		f = e->fence;
+		if (dma_fence_is_signaled(f)) {
+			amdgpu_sync_entry_free(e);
+			continue;
+		}
+
+		dma_fence_get(f);
+		r = drm_sched_job_add_dependency(&job->base, f);
+		if (r) {
+			dma_fence_put(f);
+			return r;
+		}
+	}
+	return 0;
+}
+
 int amdgpu_sync_wait(struct amdgpu_sync *sync, bool intr)
 {
 	struct amdgpu_sync_entry *e;
@@ -375,9 +410,7 @@ int amdgpu_sync_wait(struct amdgpu_sync *sync, bool intr)
 		if (r)
 			return r;
 
-		hash_del(&e->node);
-		dma_fence_put(e->fence);
-		kmem_cache_free(amdgpu_sync_slab, e);
+		amdgpu_sync_entry_free(e);
 	}
 
 	return 0;
@@ -396,11 +429,8 @@ void amdgpu_sync_free(struct amdgpu_sync *sync)
 	struct hlist_node *tmp;
 	unsigned int i;
 
-	hash_for_each_safe(sync->fences, i, tmp, e, node) {
-		hash_del(&e->node);
-		dma_fence_put(e->fence);
-		kmem_cache_free(amdgpu_sync_slab, e);
-	}
+	hash_for_each_safe(sync->fences, i, tmp, e, node)
+		amdgpu_sync_entry_free(e);
 }
 
 /**