/*
   * 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 */