_DRM_VBLANK_EVENT
_DRM_VBLANK_EVENT |
if (flags & _DRM_VBLANK_EVENT) {
#define _DRM_VBLANK_FLAGS_MASK (_DRM_VBLANK_EVENT | _DRM_VBLANK_SIGNAL | \
#define _DRM_VBLANK_FLAGS_MASK (_DRM_VBLANK_EVENT | _DRM_VBLANK_SIGNAL | \