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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 <adt/list.h>
  48. #include <mm/as.h>
  49.  
  50. #endif
  51.  
  52. #define ASID_KERNEL 0
  53. #define ASID_INVALID    1
  54. #define ASID_START  2
  55. #define ASID_MAX    ASID_MAX_ARCH
  56.  
  57. #ifndef __ASM__
  58.  
  59. #define ASIDS_ALLOCABLE ((ASID_MAX + 1) - ASID_START)
  60.  
  61. SPINLOCK_EXTERN(asidlock);
  62. extern link_t as_with_asid_head;
  63.  
  64. #ifndef asid_get
  65. extern asid_t asid_get(void);
  66. #endif /* !def asid_get */
  67.  
  68. #ifndef asid_put
  69. extern void asid_put(asid_t asid);
  70. #endif /* !def asid_put */
  71.  
  72. #ifndef asid_install
  73. extern void asid_install(as_t *as);
  74. #endif /* !def asid_install */
  75.  
  76. #ifndef asid_find_free
  77. extern asid_t asid_find_free(void);
  78. #endif /* !def asid_find_free */
  79.  
  80. #ifndef asid_put_arch
  81. extern void asid_put_arch(asid_t asid);
  82. #endif /* !def asid_put_arch */
  83.  
  84. #endif
  85.  
  86. #endif
  87.  
  88. /** @}
  89.  */
  90.