306 int drm_writeback_prepare_job(struct drm_writeback_job *job)  in drm_writeback_prepare_job()  argument
308 	struct drm_writeback_connector *connector = job->connector;  in drm_writeback_prepare_job()
314 		ret = funcs->prepare_writeback_job(connector, job);  in drm_writeback_prepare_job()
319 	job->prepared = true;  in drm_writeback_prepare_job()
325  * drm_writeback_queue_job - Queue a writeback job for later signalling
326  * @wb_connector: The writeback connector to queue a job on
327  * @conn_state: The connector state containing the job to queue
329  * This function adds the job contained in @conn_state to the job_queue for a
330  * writeback connector. It takes ownership of the writeback job and sets the
331  * @conn_state->writeback_job to NULL, and so no access to the job may be
346 	struct drm_writeback_job *job;  in drm_writeback_queue_job()  local
349 	job = conn_state->writeback_job;  in drm_writeback_queue_job()
353 	list_add_tail(&job->list_entry, &wb_connector->job_queue);  in drm_writeback_queue_job()
358 void drm_writeback_cleanup_job(struct drm_writeback_job *job)  in drm_writeback_cleanup_job()  argument
360 	struct drm_writeback_connector *connector = job->connector;  in drm_writeback_cleanup_job()
364 	if (job->prepared && funcs->cleanup_writeback_job)  in drm_writeback_cleanup_job()
365 		funcs->cleanup_writeback_job(connector, job);  in drm_writeback_cleanup_job()
367 	if (job->fb)  in drm_writeback_cleanup_job()
368 		drm_framebuffer_put(job->fb);  in drm_writeback_cleanup_job()
370 	if (job->out_fence)  in drm_writeback_cleanup_job()
371 		dma_fence_put(job->out_fence);  in drm_writeback_cleanup_job()
373 	kfree(job);  in drm_writeback_cleanup_job()
378  * @cleanup_work: deferred cleanup of a writeback job
380  * The job cannot be cleaned up directly in drm_writeback_signal_completion,
386 	struct drm_writeback_job *job = container_of(work,  in cleanup_work()  local
390 	drm_writeback_cleanup_job(job);  in cleanup_work()
394  * drm_writeback_signal_completion - Signal the completion of a writeback job
395  * @wb_connector: The writeback connector whose job is complete
399  * writeback job. It should be called as soon as possible after the hardware
414 	struct drm_writeback_job *job;  in drm_writeback_signal_completion()  local
418 	job = list_first_entry_or_null(&wb_connector->job_queue,  in drm_writeback_signal_completion()
421 	if (job)  in drm_writeback_signal_completion()
422 		list_del(&job->list_entry);  in drm_writeback_signal_completion()
426 	if (WARN_ON(!job))  in drm_writeback_signal_completion()
429 	out_fence = job->out_fence;  in drm_writeback_signal_completion()
435 		job->out_fence = NULL;  in drm_writeback_signal_completion()
438 	INIT_WORK(&job->cleanup_work, cleanup_work);  in drm_writeback_signal_completion()
439 	queue_work(system_long_wq, &job->cleanup_work);  in drm_writeback_signal_completion()