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  1. /*
  2.  * Copyright (c) 2006 Martin Decky
  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 ppc32mm
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef KERN_ppc32_TLB_H_
  36. #define KERN_ppc32_TLB_H_
  37.  
  38. #include <arch/interrupt.h>
  39.  
  40. typedef struct {
  41.     unsigned v : 1;          /**< Valid */
  42.     unsigned vsid : 24;      /**< Virtual Segment ID */
  43.     unsigned h : 1;          /**< Primary/secondary hash */
  44.     unsigned api : 6;        /**< Abbreviated Page Index */
  45.     unsigned rpn : 20;       /**< Real Page Number */
  46.     unsigned reserved0 : 3;
  47.     unsigned r : 1;          /**< Reference */
  48.     unsigned c : 1;          /**< Change */
  49.     unsigned wimg : 4;       /**< Access control */
  50.     unsigned reserved1 : 1;
  51.     unsigned pp : 2;         /**< Page protection */
  52. } phte_t;
  53.  
  54. extern void pht_refill(int n, istate_t *istate);
  55. extern bool pht_real_refill(int n, istate_t *istate) __attribute__ ((section("K_UNMAPPED_TEXT_START")));
  56. extern void pht_init(void);
  57.  
  58. #endif
  59.  
  60. /** @}
  61.  */
  62.