1 files changed, 22 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
index 4fffb2539331..69b7d4540c6e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
@@ -202,6 +202,28 @@ int amdgpu_sync_resv(struct amdgpu_device *adev,
         return r;
 }
 
+struct fence *amdgpu_sync_get_fence(struct amdgpu_sync *sync)
+{
+        struct amdgpu_sync_entry *e;
+        struct hlist_node *tmp;
+        struct fence *f;
+        int i;
+
+        hash_for_each_safe(sync->fences, i, tmp, e, node) {
+
+                f = e->fence;
+
+                hash_del(&e->node);
+                kfree(e);
+
+                if (!fence_is_signaled(f))
+                        return f;
+
+                fence_put(f);
+        }
+        return NULL;
+}
+
 int amdgpu_sync_wait(struct amdgpu_sync *sync)
 {
         struct amdgpu_sync_entry *e;