/**************************************************************************
   *
   * Copyright 2009 Red Hat Inc.
   * 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.
   *
   *
   **************************************************************************/
  /*
   * Authors:
   * Dave Airlie <airlied@redhat.com>
   */
  
  #ifndef _DRM_CACHE_H_
  #define _DRM_CACHE_H_
  
  void drm_clflush_pages(struct page *pages[], unsigned long num_pages);

  static inline bool drm_arch_can_wc_memory(void)
  {
  #if defined(CONFIG_PPC) && !defined(CONFIG_NOT_COHERENT_CACHE)
  	return false;

  #elif defined(CONFIG_MIPS) && defined(CONFIG_CPU_LOONGSON3)
  	return false;

  #else
  	return true;
  #endif
  }

  #endif