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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. /** @addtogroup sparc64mm  
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef __sparc64_TTE_H__
  36. #define __sparc64_TTE_H__
  37.  
  38. #define TTE_G       (1<<0)
  39. #define TTE_W       (1<<1)
  40. #define TTE_P       (1<<2)
  41. #define TTE_E       (1<<3)
  42. #define TTE_CV      (1<<4)
  43. #define TTE_CP      (1<<5)
  44. #define TTE_L       (1<<6)
  45.  
  46. #define TTE_V_SHIFT 63
  47. #define TTE_SIZE_SHIFT  61
  48.  
  49. #ifndef __ASM__
  50.  
  51. #include <arch/types.h>
  52.  
  53. /** Translation Table Entry - Tag. */
  54. union tte_tag {
  55.     uint64_t value;
  56.     struct {
  57.         unsigned g : 1;     /**< Global. */
  58.         unsigned : 2;       /**< Reserved. */
  59.         unsigned context : 13;  /**< Context identifier. */
  60.         unsigned : 6;       /**< Reserved. */
  61.         uint64_t va_tag : 42;   /**< Virtual Address Tag, bits 63:22. */
  62.     } __attribute__ ((packed));
  63. };
  64.  
  65. typedef union tte_tag tte_tag_t;
  66.  
  67. /** Translation Table Entry - Data. */
  68. union tte_data {
  69.     uint64_t value;
  70.     struct {
  71.         unsigned v : 1;     /**< Valid. */
  72.         unsigned size : 2;  /**< Page size of this entry. */
  73.         unsigned nfo : 1;   /**< No-Fault-Only. */
  74.         unsigned ie : 1;    /**< Invert Endianness. */
  75.         unsigned soft2 : 9; /**< Software defined field. */
  76.         unsigned diag : 9;  /**< Diagnostic data. */
  77.         unsigned pfn : 28;  /**< Physical Address bits, bits 40:13. */
  78.         unsigned soft : 6;  /**< Software defined field. */
  79.         unsigned l : 1;     /**< Lock. */
  80.         unsigned cp : 1;    /**< Cacheable in physically indexed cache. */
  81.         unsigned cv : 1;    /**< Cacheable in virtually indexed cache. */
  82.         unsigned e : 1;     /**< Side-effect. */
  83.         unsigned p : 1;     /**< Privileged. */
  84.         unsigned w : 1;     /**< Writable. */
  85.         unsigned g : 1;     /**< Global. */
  86.     } __attribute__ ((packed));
  87. };
  88.  
  89. typedef union tte_data tte_data_t;
  90.  
  91. #endif /* !def __ASM__ */
  92.  
  93. #endif
  94.  
  95. /** @}
  96.  */
  97.