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  1. /*
  2.  * Copyright (C) 2005 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. #ifndef __ia64_PAGE_H__
  30. #define __ia64_PAGE_H__
  31.  
  32. #include <arch/types.h>
  33. #include <arch/mm/frame.h>
  34.  
  35. #define PAGE_SIZE   FRAME_SIZE
  36.  
  37. #define KA2PA(x)    ((x)-0x8000000000000000)
  38. #define PA2KA(x)    ((x)+0x8000000000000000)
  39.  
  40. #define page_arch_init()    ;
  41.  
  42. /*
  43.  * Implementation of generic 4-level page table interface.
  44.  * TODO: this is a fake implementation provided to satisfy the compiler
  45.  */
  46. #define PTL0_INDEX_ARCH(vaddr)  0
  47. #define PTL1_INDEX_ARCH(vaddr)  0
  48. #define PTL2_INDEX_ARCH(vaddr)  0
  49. #define PTL3_INDEX_ARCH(vaddr)  0
  50.  
  51. #define GET_PTL0_ADDRESS_ARCH()                 ((pte_t *) 0)
  52. #define GET_PTL1_ADDRESS_ARCH(ptl0, i)          ((pte_t *) 0)
  53. #define GET_PTL2_ADDRESS_ARCH(ptl1, i)          ((pte_t *) 0)
  54. #define GET_PTL3_ADDRESS_ARCH(ptl2, i)          ((pte_t *) 0)
  55. #define GET_FRAME_ADDRESS_ARCH(ptl3, i)         ((pte_t *) 0)
  56.  
  57. #define SET_PTL0_ADDRESS_ARCH(ptl0)
  58. #define SET_PTL1_ADDRESS_ARCH(ptl0, i, a)
  59. #define SET_PTL2_ADDRESS_ARCH(ptl1, i, a)
  60. #define SET_PTL3_ADDRESS_ARCH(ptl2, i, a)
  61. #define SET_FRAME_ADDRESS_ARCH(ptl3, i, a)
  62.  
  63. #define GET_PTL1_FLAGS_ARCH(ptl0, i)            0
  64. #define GET_PTL2_FLAGS_ARCH(ptl1, i)            0
  65. #define GET_PTL3_FLAGS_ARCH(ptl2, i)            0
  66. #define GET_FRAME_FLAGS_ARCH(ptl3, i)           0
  67.  
  68. #define SET_PTL1_FLAGS_ARCH(ptl0, i, x)
  69. #define SET_PTL2_FLAGS_ARCH(ptl1, i, x)
  70. #define SET_PTL3_FLAGS_ARCH(ptl2, i, x)
  71. #define SET_FRAME_FLAGS_ARCH(ptl3, i, x)
  72.  
  73. typedef __u64 pte_t;
  74.  
  75. #endif
  76.