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  1. /*
  2.  * Copyright (c) 2006 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 genericmm
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. /*
  36.  * This is generic interface for managing
  37.  * Address Space IDentifiers (ASIDs).
  38.  */
  39.  
  40. #ifndef KERN_ASID_H_
  41. #define KERN_ASID_H_
  42.  
  43. #ifndef __ASM__
  44.  
  45. #include <arch/mm/asid.h>
  46. #include <synch/spinlock.h>
  47. #include <typedefs.h>
  48.  
  49. #endif
  50.  
  51. #define ASID_KERNEL 0
  52. #define ASID_INVALID    1
  53. #define ASID_START  2
  54. #define ASID_MAX    ASID_MAX_ARCH
  55.  
  56. #ifndef __ASM__
  57.  
  58. #define ASIDS_ALLOCABLE ((ASID_MAX + 1) - ASID_START)
  59.  
  60. extern spinlock_t asidlock;
  61. extern link_t as_with_asid_head;
  62.  
  63. #ifndef asid_get
  64. extern asid_t asid_get(void);
  65. #endif /* !def asid_get */
  66.  
  67. #ifndef asid_put
  68. extern void asid_put(asid_t asid);
  69. #endif /* !def asid_put */
  70.  
  71. #ifndef asid_install
  72. extern void asid_install(as_t *as);
  73. #endif /* !def asid_install */
  74.  
  75. #ifndef asid_find_free
  76. extern asid_t asid_find_free(void);
  77. #endif /* !def asid_find_free */
  78.  
  79. #ifndef asid_put_arch
  80. extern void asid_put_arch(asid_t asid);
  81. #endif /* !def asid_put_arch */
  82.  
  83. #endif
  84.  
  85. #endif
  86.  
  87. /** @}
  88.  */
  89.