1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/dma_resv_utils.c b/drivers/gpu/drm/i915/dma_resv_utils.c
new file mode 100644
index 000000000000..9e508e7d4629
--- /dev/null
+++ b/drivers/gpu/drm/i915/dma_resv_utils.c
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#include <linux/dma-resv.h>
+
+#include "dma_resv_utils.h"
+
+void dma_resv_prune(struct dma_resv *resv)
+{
+	if (dma_resv_trylock(resv)) {
+		if (dma_resv_test_signaled_rcu(resv, true))
+			dma_resv_add_excl_fence(resv, NULL);
+		dma_resv_unlock(resv);
+	}
+}