| /* | |
| * Header file for reservations for dma-buf and ttm | |
| * | |
| * Copyright(C) 2011 Linaro Limited. All rights reserved. | |
| * Copyright (C) 2012-2013 Canonical Ltd | |
| * Copyright (C) 2012 Texas Instruments | |
| * | |
| * Authors: | |
| * Rob Clark <rob.clark@linaro.org> | |
| * Maarten Lankhorst <maarten.lankhorst@canonical.com> | |
| * Thomas Hellstrom <thellstrom-at-vmware-dot-com> | |
| * | |
| * Based on bo.c which bears the following copyright notice, | |
| * but is dual licensed: | |
| * | |
| * Copyright (c) 2006-2009 VMware, Inc., Palo Alto, CA., USA | |
| * All Rights Reserved. | |
| * | |
| * Permission is hereby granted, free of charge, to any person obtaining a | |
| * copy of this software and associated documentation files (the | |
| * "Software"), to deal in the Software without restriction, including | |
| * without limitation the rights to use, copy, modify, merge, publish, | |
| * distribute, sub license, and/or sell copies of the Software, and to | |
| * permit persons to whom the Software is furnished to do so, subject to | |
| * the following conditions: | |
| * | |
| * The above copyright notice and this permission notice (including the | |
| * next paragraph) shall be included in all copies or substantial portions | |
| * of the Software. | |
| * | |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL | |
| * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, | |
| * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR | |
| * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE | |
| * USE OR OTHER DEALINGS IN THE SOFTWARE. | |
| */ | |
| #ifndef _LINUX_RESERVATION_H | |
| #define _LINUX_RESERVATION_H | |
| #include <linux/ww_mutex.h> | |
| extern struct ww_class reservation_ww_class; | |
| struct reservation_object { | |
| struct ww_mutex lock; | |
| }; | |
| static inline void | |
| reservation_object_init(struct reservation_object *obj) | |
| { | |
| ww_mutex_init(&obj->lock, &reservation_ww_class); | |
| } | |
| static inline void | |
| reservation_object_fini(struct reservation_object *obj) | |
| { | |
| ww_mutex_destroy(&obj->lock); | |
| } | |
| #endif /* _LINUX_RESERVATION_H */ |