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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 sparc64interrupt
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef __sparc64_TRAP_TABLE_H__
  36. #define __sparc64_TRAP_TABLE_H__
  37.  
  38. #ifndef __ASM__
  39. #include <arch/types.h>
  40. #endif /* __ASM__ */
  41.  
  42. #include <arch/stack.h>
  43.  
  44. #define TRAP_TABLE_ENTRY_COUNT  1024
  45. #define TRAP_TABLE_ENTRY_SIZE   32
  46. #define TRAP_TABLE_SIZE     (TRAP_TABLE_ENTRY_COUNT*TRAP_TABLE_ENTRY_SIZE)
  47.  
  48. #ifndef __ASM__
  49. struct trap_table_entry {
  50.     __u8 octets[TRAP_TABLE_ENTRY_SIZE];
  51. } __attribute__ ((packed));
  52.  
  53. typedef struct trap_table_entry trap_table_entry_t;
  54.  
  55. extern trap_table_entry_t trap_table[TRAP_TABLE_ENTRY_COUNT];
  56. extern trap_table_entry_t trap_table_save[TRAP_TABLE_ENTRY_COUNT];
  57. #endif /* !__ASM__ */
  58.  
  59. #ifdef __ASM__
  60. .macro SAVE_GLOBALS
  61.     mov %g1, %l1
  62.     mov %g2, %l2
  63.     mov %g3, %l3
  64.     mov %g4, %l4
  65.     mov %g5, %l5
  66.     mov %g6, %l6
  67.     mov %g7, %l7
  68. .endm
  69.  
  70. .macro RESTORE_GLOBALS
  71.     mov %l1, %g1
  72.     mov %l2, %g2
  73.     mov %l3, %g3
  74.     mov %l4, %g4
  75.     mov %l5, %g5
  76.     mov %l6, %g6
  77.     mov %l7, %g7
  78. .endm
  79.  
  80. #define PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE    (STACK_WINDOW_SAVE_AREA_SIZE+(4*8))
  81. #define SAVED_TSTATE    -(1*8)
  82. #define SAVED_TPC   -(2*8)
  83. #define SAVED_TNPC  -(3*8)
  84. #define SAVED_PSTATE    -(4*8)
  85.  
  86. .macro PREEMPTIBLE_HANDLER f
  87.     set \f, %l0
  88.     b preemptible_handler
  89.     nop
  90. .endm
  91.  
  92. .macro SIMPLE_HANDLER f
  93.     call \f
  94.     nop
  95. .endm
  96. #endif /* __ASM__ */
  97.  
  98. #endif
  99.  
  100. /** @}
  101.  */
  102.  
  103.