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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 sparc64interrupt
  30.  * @{
  31.  */
  32. /**
  33.  * @file
  34.  * @brief This file contains fast MMU trap handlers.
  35.  */
  36.  
  37. #ifndef __sparc64_MMU_TRAP_H__
  38. #define __sparc64_MMU_TRAP_H__
  39.  
  40. #include <arch/stack.h>
  41.  
  42. #define TT_FAST_INSTRUCTION_ACCESS_MMU_MISS 0x64
  43. #define TT_FAST_DATA_ACCESS_MMU_MISS        0x68
  44. #define TT_FAST_DATA_ACCESS_PROTECTION      0x6c
  45.  
  46. #define FAST_MMU_HANDLER_SIZE           128
  47.  
  48. #ifdef __ASM__
  49. .macro FAST_INSTRUCTION_ACCESS_MMU_MISS_HANDLER
  50.     save %sp, -STACK_WINDOW_SAVE_AREA_SIZE, %sp
  51.     call fast_instruction_access_mmu_miss
  52.     nop
  53.     restore
  54.     retry  
  55. .endm
  56.  
  57. .macro FAST_DATA_ACCESS_MMU_MISS_HANDLER
  58.     save %sp, -STACK_WINDOW_SAVE_AREA_SIZE, %sp
  59.     call fast_data_access_mmu_miss
  60.     nop
  61.     restore
  62.     retry
  63. .endm
  64.  
  65. .macro FAST_DATA_ACCESS_PROTECTION_HANDLER
  66.     save %sp, -STACK_WINDOW_SAVE_AREA_SIZE, %sp
  67.     call fast_data_access_protection
  68.     nop
  69.     restore
  70.     retry
  71. .endm
  72. #endif /* __ASM__ */
  73.  
  74. #endif
  75.  
  76. /** @}
  77.  */
  78.