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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 __sparc64_PAGE_H__
  30. #define __sparc64_PAGE_H__
  31.  
  32. #include <mm/page.h>
  33. #include <arch/mm/frame.h>
  34. #include <arch/types.h>
  35.  
  36. #define PAGE_SIZE   FRAME_SIZE
  37.  
  38. #define KA2PA(x)    ((__address) (x))
  39. #define PA2KA(x)    ((__address) (x))
  40.  
  41. #define SET_PTL0_ADDRESS_ARCH(x)    /**< To be removed as situation permits. */
  42.  
  43. /** Implementation of page hash table interface. */
  44. #define HT_WIDTH_ARCH           20  /* 1M */
  45. #define HT_HASH_ARCH(page, asid)    0
  46. #define HT_COMPARE_ARCH(page, asid, t)  0
  47. #define HT_SLOT_EMPTY_ARCH(t)       1
  48. #define HT_INVALIDATE_SLOT_ARCH(t)
  49. #define HT_GET_NEXT_ARCH(t)     0
  50. #define HT_SET_NEXT_ARCH(t, s)
  51. #define HT_SET_RECORD_ARCH(t, page, asid, frame, flags)
  52.  
  53. union page_address {
  54.     __address address;
  55.     struct {
  56.         __u64 vpn : 51;     /**< Virtual Page Number. */
  57.         unsigned offset : 13;   /**< Offset. */
  58.     } __attribute__ ((packed));
  59. };
  60.  
  61. typedef union page_address page_address_t;
  62.  
  63. extern void page_arch_init(void);
  64.  
  65. #endif
  66.