123 	 * We raced with the vblank hrtimer and previous work already computed  in crc_generate_worker()
154 	 * The worker can fall behind the vblank hrtimer, make sure we catch up.  in crc_generate_worker()
173 		drm_dbg_driver(crtc->dev, "vblank timer missed %lld frames.\n",  in vmw_vkms_vblank_simulate()
252 	struct drm_vblank_crtc *vblank = &dev->vblank[pipe];  in vmw_vkms_get_vblank_timestamp()  local
257 	if (!READ_ONCE(vblank->enabled)) {  in vmw_vkms_get_vblank_timestamp()
264 	if (WARN_ON(*vblank_time == vblank->time))  in vmw_vkms_get_vblank_timestamp()
270 	 * only generated after all the vblank registers are updated) and what  in vmw_vkms_get_vblank_timestamp()
271 	 * the vblank core expects. Therefore we need to always correct the  in vmw_vkms_get_vblank_timestamp()
285 	struct drm_vblank_crtc *vblank = &dev->vblank[pipe];  in vmw_vkms_enable_vblank()  local
295 	du->vkms.period_ns = ktime_set(0, vblank->framedur_ns);  in vmw_vkms_enable_vblank()
512  * @du: The vmw_display_unit from which to grab the vblank timings
515  * default uses a time of a single frame and in case where vblank
532  * e.g. the vblank simulator to be trying to access incomplete state
540  * atomic context (the vblank handler) with the non-atomic entirity
608  * vmw_vkms_vblank_trylock - Protects access to crtc during vblank
611  * Tries to lock vkms for vblank, returns immediately.
613  * Returns true if locked vkms to vblank or false otherwise.