diff --git a/src/gallium/drivers/radeon/radeon_winsys.h b/src/gallium/drivers/radeon/radeon_winsys.h
index 3be4738027a..e7787d3cb4e 100644
--- a/src/gallium/drivers/radeon/radeon_winsys.h
+++ b/src/gallium/drivers/radeon/radeon_winsys.h
@@ -731,6 +731,13 @@ struct radeon_winsys {
                     unsigned flags,
                     struct pipe_fence_handle **fence);
 
+    /**
+     * Create a fence before the CS is flushed.
+     * The user must flush manually to complete the initializaton of the fence.
+     * The fence must not be used before the flush.
+     */
+    struct pipe_fence_handle *(*cs_get_next_fence)(struct radeon_winsys_cs *cs);
+
     /**
      * Return true if a buffer is referenced by a command stream.
      *