dce4_is_in_vblank 1393 drivers/gpu/drm/radeon/evergreen.c 	while (dce4_is_in_vblank(rdev, crtc)) {
dce4_is_in_vblank 1400 drivers/gpu/drm/radeon/evergreen.c 	while (!dce4_is_in_vblank(rdev, crtc)) {