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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 KERN_sparc64_AS_H_
  36. #define KERN_sparc64_AS_H_
  37.  
  38. #include <arch/mm/tte.h>
  39.  
  40. #define KERNEL_ADDRESS_SPACE_SHADOWED_ARCH  1
  41.  
  42. #define KERNEL_ADDRESS_SPACE_START_ARCH     (unsigned long) 0x0000000000000000
  43. #define KERNEL_ADDRESS_SPACE_END_ARCH       (unsigned long) 0xffffffffffffffff
  44. #define USER_ADDRESS_SPACE_START_ARCH       (unsigned long) 0x0000000000000000
  45. #define USER_ADDRESS_SPACE_END_ARCH     (unsigned long) 0xffffffffffffffff
  46.  
  47. #define USTACK_ADDRESS_ARCH (0xffffffffffffffffULL - (PAGE_SIZE - 1))
  48.  
  49. #ifdef CONFIG_TSB
  50.  
  51. /** TSB Tag Target register. */
  52. typedef union tsb_tag_target {
  53.     uint64_t value;
  54.     struct {
  55.         unsigned invalid : 1;   /**< Invalidated by software. */
  56.         unsigned : 2;
  57.         unsigned context : 13;  /**< Software ASID. */
  58.         unsigned : 6;
  59.         uint64_t va_tag : 42;   /**< Virtual address bits <63:22>. */
  60.     } __attribute__ ((packed));
  61. } tsb_tag_target_t;
  62.  
  63. /** TSB entry. */
  64. typedef struct tsb_entry {
  65.     tsb_tag_target_t tag;
  66.     tte_data_t data;
  67. } __attribute__ ((packed)) tsb_entry_t;
  68.  
  69. typedef struct {
  70.     tsb_entry_t *itsb;
  71.     tsb_entry_t *dtsb;
  72. } as_arch_t;
  73.  
  74. #else
  75.  
  76. typedef struct {
  77. } as_arch_t;
  78.  
  79. #endif /* CONFIG_TSB */
  80.  
  81. #include <genarch/mm/as_ht.h>
  82.  
  83. #ifdef CONFIG_TSB
  84. #   include <arch/mm/tsb.h>
  85. #   define as_invalidate_translation_cache(as, page, cnt)   tsb_invalidate(as, page, cnt)
  86. #else
  87. #   define as_invalidate_translation_cache(as, page, cnt)
  88. #endif
  89.  
  90. extern void as_arch_init(void);
  91.  
  92. #endif
  93.  
  94. /** @}
  95.  */
  96.