Subversion Repositories HelenOS-historic

Rev

Rev 531 | Go to most recent revision | Blame | Compare with Previous | Last modification | View Log | Download | RSS feed

  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_TTE_H__
  30. #define __sparc64_TTE_H__
  31.  
  32. #include <arch/types.h>
  33.  
  34. /** Translation Table Entry - Tag. */
  35. union tte_tag {
  36.     __u64 value;
  37.     struct {
  38.         unsigned g : 1;     /**< Global. */
  39.         unsigned : 2;       /**< Reserved. */
  40.         unsigned context : 13;  /**< Context identifier. */
  41.         unsigned : 6;       /**< Reserved. */
  42.         long va_tag : 42;   /**< Virtual Address Tag, bits 63:22. */
  43.     } __attribute__ ((packed));
  44. };
  45.  
  46. typedef union tte_tag tte_tag_t;
  47.  
  48. /** Translation Table Entry - Data. */
  49. union tte_data {
  50.     __u64 value;
  51.     struct {
  52.         unsigned v : 1;     /**< Valid. */
  53.         unsigned size : 2;  /**< Page size of this entry. */
  54.         unsigned nfo : 1;   /**< No-Fault-Only. */
  55.         unsigned ie : 1;    /**< Invert Endianness. */
  56.         unsigned soft2 : 9; /**< Software defined field. */
  57.         unsigned diag : 9;  /**< Diagnostic data. */
  58.         unsigned pa : 28;   /**< Physical page number. */
  59.         unsigned soft : 6;  /**< Software defined field. */
  60.         unsigned l : 1;     /**< Lock. */
  61.         unsigned cp : 1;    /**< Cacheable in physically indexed cache. */
  62.         unsigned cv : 1;    /**< Cacheable in virtually indexed cache. */
  63.         unsigned e : 1;     /**< Side-effect. */
  64.         unsigned p : 1;     /**< Privileged. */
  65.         unsigned w : 1;     /**< Writable. */
  66.         unsigned g : 1;     /**< Global. */
  67.     } __attribute__ ((packed));
  68. };
  69.  
  70. typedef union tte_data tte_data_t;
  71.  
  72. #endif
  73.