291 		struct drm_modeset_lock *lock;  in drm_modeset_drop_locks()  local
293 		lock = list_first_entry(&ctx->locked,  in drm_modeset_drop_locks()
296 		drm_modeset_unlock(lock);  in drm_modeset_drop_locks()
301 static inline int modeset_lock(struct drm_modeset_lock *lock,  in modeset_lock()  argument
312 		if (!ww_mutex_trylock(&lock->mutex))  in modeset_lock()
317 		ret = ww_mutex_lock_slow_interruptible(&lock->mutex, &ctx->ww_ctx);  in modeset_lock()
319 		ret = ww_mutex_lock_interruptible(&lock->mutex, &ctx->ww_ctx);  in modeset_lock()
321 		ww_mutex_lock_slow(&lock->mutex, &ctx->ww_ctx);  in modeset_lock()
324 		ret = ww_mutex_lock(&lock->mutex, &ctx->ww_ctx);  in modeset_lock()
327 		WARN_ON(!list_empty(&lock->head));  in modeset_lock()
328 		list_add(&lock->head, &ctx->locked);  in modeset_lock()
337 		ctx->contended = lock;  in modeset_lock()
395 int drm_modeset_lock(struct drm_modeset_lock *lock,  in drm_modeset_lock()  argument
399 		return modeset_lock(lock, ctx, false, false);  in drm_modeset_lock()
401 	ww_mutex_lock(&lock->mutex, NULL);  in drm_modeset_lock()
413 int drm_modeset_lock_interruptible(struct drm_modeset_lock *lock,  in drm_modeset_lock_interruptible()  argument
417 		return modeset_lock(lock, ctx, true, false);  in drm_modeset_lock_interruptible()
419 	return ww_mutex_lock_interruptible(&lock->mutex, NULL);  in drm_modeset_lock_interruptible()
427 void drm_modeset_unlock(struct drm_modeset_lock *lock)  in drm_modeset_unlock()  argument
429 	list_del_init(&lock->head);  in drm_modeset_unlock()
430 	ww_mutex_unlock(&lock->mutex);  in drm_modeset_unlock()