drm/amdgpu: move ring_from_fence to common code
Going to need that elsewhere as well.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index b2df348..78e9b0f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -436,6 +436,30 @@
}
}
+/**
+ * amdgpu_ring_from_fence - get ring from fence
+ *
+ * @f: fence structure
+ *
+ * Extract the ring a fence belongs to. Handles both scheduler as
+ * well as hardware fences.
+ */
+struct amdgpu_ring *amdgpu_ring_from_fence(struct fence *f)
+{
+ struct amdgpu_fence *a_fence;
+ struct amd_sched_fence *s_fence;
+
+ s_fence = to_amd_sched_fence(f);
+ if (s_fence)
+ return container_of(s_fence->sched, struct amdgpu_ring, sched);
+
+ a_fence = to_amdgpu_fence(f);
+ if (a_fence)
+ return a_fence->ring;
+
+ return NULL;
+}
+
/*
* Debugfs info
*/