/**************************************************************************
 * 
 * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND. 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 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.
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 * 
 * 
 **************************************************************************/

#ifndef _XF86MM_H_
#define _XF86MM_H_
#include <stddef.h>
#include "drm.h"

/*
 * Note on multithreaded applications using this interface.
 * Libdrm is not threadsafe, so common buffer, TTM, and fence objects need to
 * be protected using an external mutex.
 *
 * Note: Don't protect the following functions, as it may lead to deadlocks:
 * drmBOUnmap(), drmFenceBuffers().
 * The kernel is synchronizing and refcounting buffer maps. 
 * User space only needs to refcount object usage within the same application.
 */


/*
 * List macros heavily inspired by the Linux kernel
 * list handling. No list looping yet.
 */

typedef struct _drmMMListHead
{
    struct _drmMMListHead *prev;