ttm_ref_object_exists  252 drivers/gpu/drm/vmwgfx/ttm_object.h extern bool ttm_ref_object_exists(struct ttm_object_file *tfile,
ttm_ref_object_exists  658 drivers/gpu/drm/vmwgfx/vmwgfx_bo.c 	if (likely(ttm_ref_object_exists(tfile, &vmw_user_bo->prime.base)))