262 int drm_writeback_prepare_job(struct drm_writeback_job *job)  in drm_writeback_prepare_job()  argument
264 	struct drm_writeback_connector *connector = job->connector;  in drm_writeback_prepare_job()
270 		ret = funcs->prepare_writeback_job(connector, job);  in drm_writeback_prepare_job()
275 	job->prepared = true;  in drm_writeback_prepare_job()
281  * drm_writeback_queue_job - Queue a writeback job for later signalling
282  * @wb_connector: The writeback connector to queue a job on
283  * @conn_state: The connector state containing the job to queue
285  * This function adds the job contained in @conn_state to the job_queue for a
286  * writeback connector. It takes ownership of the writeback job and sets the
287  * @conn_state->writeback_job to NULL, and so no access to the job may be
302 	struct drm_writeback_job *job;  in drm_writeback_queue_job()  local
305 	job = conn_state->writeback_job;  in drm_writeback_queue_job()
309 	list_add_tail(&job->list_entry, &wb_connector->job_queue);  in drm_writeback_queue_job()
314 void drm_writeback_cleanup_job(struct drm_writeback_job *job)  in drm_writeback_cleanup_job()  argument
316 	struct drm_writeback_connector *connector = job->connector;  in drm_writeback_cleanup_job()
320 	if (job->prepared && funcs->cleanup_writeback_job)  in drm_writeback_cleanup_job()
321 		funcs->cleanup_writeback_job(connector, job);  in drm_writeback_cleanup_job()
323 	if (job->fb)  in drm_writeback_cleanup_job()
324 		drm_framebuffer_put(job->fb);  in drm_writeback_cleanup_job()
326 	if (job->out_fence)  in drm_writeback_cleanup_job()
327 		dma_fence_put(job->out_fence);  in drm_writeback_cleanup_job()
329 	kfree(job);  in drm_writeback_cleanup_job()
334  * @cleanup_work: deferred cleanup of a writeback job
336  * The job cannot be cleaned up directly in drm_writeback_signal_completion,
342 	struct drm_writeback_job *job = container_of(work,  in cleanup_work()  local
346 	drm_writeback_cleanup_job(job);  in cleanup_work()
350  * drm_writeback_signal_completion - Signal the completion of a writeback job
351  * @wb_connector: The writeback connector whose job is complete
355  * writeback job. It should be called as soon as possible after the hardware
370 	struct drm_writeback_job *job;  in drm_writeback_signal_completion()  local
374 	job = list_first_entry_or_null(&wb_connector->job_queue,  in drm_writeback_signal_completion()
377 	if (job)  in drm_writeback_signal_completion()
378 		list_del(&job->list_entry);  in drm_writeback_signal_completion()
382 	if (WARN_ON(!job))  in drm_writeback_signal_completion()
385 	out_fence = job->out_fence;  in drm_writeback_signal_completion()
391 		job->out_fence = NULL;  in drm_writeback_signal_completion()
394 	INIT_WORK(&job->cleanup_work, cleanup_work);  in drm_writeback_signal_completion()
395 	queue_work(system_long_wq, &job->cleanup_work);  in drm_writeback_signal_completion()