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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. #ifndef __ppc32_TLB_H__
  30. #define __ppc32_TLB_H__
  31.  
  32. #include <arch/exception.h>
  33. #include <typedefs.h>
  34.  
  35. #define PHT_BITS    16
  36. #define PHT_ORDER   4
  37.  
  38. typedef struct {
  39.     unsigned v : 1;          /**< Valid */
  40.     unsigned vsid : 24;      /**< Virtual Segment ID */
  41.     unsigned h : 1;          /**< Primary/secondary hash */
  42.     unsigned api : 6;        /**< Abbreviated Page Index */
  43.     unsigned rpn : 20;       /**< Real Page Number */
  44.     unsigned reserved0 : 3;
  45.     unsigned r : 1;          /**< Reference */
  46.     unsigned c : 1;          /**< Change */
  47.     unsigned wimg : 4;       /**< Access control */
  48.     unsigned reserved1 : 1;
  49.     unsigned pp : 2;         /**< Page protection */
  50. } phte_t;
  51.  
  52. extern void pht_refill(bool data, istate_t *istate);
  53.  
  54. #endif
  55.