1 files changed, 5 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/radeon/radeon_buffer_objects.c b/src/mesa/drivers/dri/radeon/radeon_buffer_objects.c
index 8fac5c6c512..99d3ec7005e 100644
--- a/src/mesa/drivers/dri/radeon/radeon_buffer_objects.c
+++ b/src/mesa/drivers/dri/radeon/radeon_buffer_objects.c
@@ -136,8 +136,13 @@ radeonBufferSubData(GLcontext * ctx,
                     const GLvoid * data,
                     struct gl_buffer_object *obj)
 {
+    radeonContextPtr radeon = RADEON_CONTEXT(ctx);
     struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);
 
+    if (radeon_bo_is_referenced_by_cs(radeon_obj->bo, radeon->cmdbuf.cs)) {
+        radeon_firevertices(radeon);
+    }
+
     radeon_bo_map(radeon_obj->bo, GL_TRUE);
 
     _mesa_memcpy(radeon_obj->bo->ptr + offset, data, size);