317 		struct drm_modeset_lock *lock;  in drm_modeset_drop_locks()  local
319 		lock = list_first_entry(&ctx->locked,  in drm_modeset_drop_locks()
322 		drm_modeset_unlock(lock);  in drm_modeset_drop_locks()
327 static inline int modeset_lock(struct drm_modeset_lock *lock,  in modeset_lock()  argument
336 		if (!ww_mutex_trylock(&lock->mutex))  in modeset_lock()
341 		ret = ww_mutex_lock_slow_interruptible(&lock->mutex, &ctx->ww_ctx);  in modeset_lock()
343 		ret = ww_mutex_lock_interruptible(&lock->mutex, &ctx->ww_ctx);  in modeset_lock()
345 		ww_mutex_lock_slow(&lock->mutex, &ctx->ww_ctx);  in modeset_lock()
348 		ret = ww_mutex_lock(&lock->mutex, &ctx->ww_ctx);  in modeset_lock()
351 		WARN_ON(!list_empty(&lock->head));  in modeset_lock()
352 		list_add(&lock->head, &ctx->locked);  in modeset_lock()
361 		ctx->contended = lock;  in modeset_lock()
419 int drm_modeset_lock(struct drm_modeset_lock *lock,  in drm_modeset_lock()  argument
423 		return modeset_lock(lock, ctx, false, false);  in drm_modeset_lock()
425 	ww_mutex_lock(&lock->mutex, NULL);  in drm_modeset_lock()
437 int drm_modeset_lock_interruptible(struct drm_modeset_lock *lock,  in drm_modeset_lock_interruptible()  argument
441 		return modeset_lock(lock, ctx, true, false);  in drm_modeset_lock_interruptible()
443 	return ww_mutex_lock_interruptible(&lock->mutex, NULL);  in drm_modeset_lock_interruptible()
451 void drm_modeset_unlock(struct drm_modeset_lock *lock)  in drm_modeset_unlock()  argument
453 	list_del_init(&lock->head);  in drm_modeset_unlock()
454 	ww_mutex_unlock(&lock->mutex);  in drm_modeset_unlock()