/* SPDX-License-Identifier: MIT */ #ifndef _DRM_VBLANK_WORK_H_#define _DRM_VBLANK_WORK_H_ #include <linux/kthread.h> struct drm_crtc; /** * struct drm_vblank_work - A delayed work item which delays until a target * vblank passes, and then executes at realtime priority outside of IRQ * context. * * See also: * drm_vblank_work_schedule() * drm_vblank_work_init() * drm_vblank_work_cancel_sync() * drm_vblank_work_flush() * drm_vblank_work_flush_all() */struct drm_vblank_work {	/**	 * @base: The base &kthread_work item which will be executed by	 * &drm_vblank_crtc.worker. Drivers should not interact with this	 * directly, and instead rely on drm_vblank_work_init() to initialize	 * this.	 */	struct kthread_work base; 	/**	 * @vblank: A pointer to &drm_vblank_crtc this work item belongs to.	 */	struct drm_vblank_crtc *vblank; 	/**	 * @count: The target vblank this work will execute on. Drivers should	 * not modify this value directly, and instead use	 * drm_vblank_work_schedule()	 */	u64 count; 	/**	 * @cancelling: The number of drm_vblank_work_cancel_sync() calls that	 * are currently running. A work item cannot be rescheduled until all	 * calls have finished.	 */	int cancelling; 	/**	 * @node: The position of this work item in	 * &drm_vblank_crtc.pending_work.	 */	struct list_head node;}; /** * to_drm_vblank_work - Retrieve the respective &drm_vblank_work item from a * &kthread_work * @_work: The &kthread_work embedded inside a &drm_vblank_work */#define to_drm_vblank_work(_work) \	container_of((_work), struct drm_vblank_work, base) int drm_vblank_work_schedule(struct drm_vblank_work *work,			     u64 count, bool nextonmiss);void drm_vblank_work_init(struct drm_vblank_work *work, struct drm_crtc *crtc,			  void (*func)(struct kthread_work *work));bool drm_vblank_work_cancel_sync(struct drm_vblank_work *work);void drm_vblank_work_flush(struct drm_vblank_work *work);void drm_vblank_work_flush_all(struct drm_crtc *crtc); #endif /* !_DRM_VBLANK_WORK_H_ */