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  1. /*
  2.  * Copyright (c) 2006 Jakub Jermar
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup genarchmm
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef KERN_AS_HT_H_
  36. #define KERN_AS_HT_H_
  37.  
  38. #include <mm/mm.h>
  39. #include <adt/list.h>
  40. #include <arch/types.h>
  41.  
  42. typedef struct {
  43. } as_genarch_t;
  44.  
  45. struct as;
  46.  
  47. typedef struct pte {
  48.     link_t link;        /**< Page hash table link. */
  49.     struct as *as;      /**< Address space. */
  50.     uintptr_t page;     /**< Virtual memory page. */
  51.     uintptr_t frame;    /**< Physical memory frame. */
  52.     unsigned g : 1;     /**< Global page. */
  53.     unsigned x : 1;     /**< Execute. */
  54.     unsigned w : 1;     /**< Writable. */
  55.     unsigned k : 1;     /**< Kernel privileges required. */
  56.     unsigned c : 1;     /**< Cacheable. */
  57.     unsigned a : 1;     /**< Accessed. */
  58.     unsigned d : 1;     /**< Dirty. */
  59.     unsigned p : 1;     /**< Present. */
  60. } pte_t;
  61.  
  62. #endif
  63.  
  64. /** @}
  65.  */
  66.