kernel/arch/sparc64/include/trap/trap_table.h

   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 KERN_sparc64_TRAP_TABLE_H_
  36 #define KERN_sparc64_TRAP_TABLE_H_
  37
  38 #include <arch/stack.h>
  39
  40 #define TRAP_TABLE_ENTRY_COUNT  1024
  41 #define TRAP_TABLE_ENTRY_SIZE   32
  42 #define TRAP_TABLE_SIZE         (TRAP_TABLE_ENTRY_COUNT*TRAP_TABLE_ENTRY_SIZE)
  43
  44 #ifndef __ASM__
  45
  46 #include <arch/types.h>
  47
  48 struct trap_table_entry {
  49         uint8_t octets[TRAP_TABLE_ENTRY_SIZE];
  50 } __attribute__ ((packed));
  51
  52 typedef struct trap_table_entry trap_table_entry_t;
  53
  54 extern trap_table_entry_t trap_table[TRAP_TABLE_ENTRY_COUNT];
  55 extern trap_table_entry_t trap_table_save[TRAP_TABLE_ENTRY_COUNT];
  56 #endif /* !__ASM__ */
  57
  58 #ifdef __ASM__
  59 .macro SAVE_GLOBALS
  60         mov %g1, %l1
  61         mov %g2, %l2
  62         mov %g3, %l3
  63         mov %g4, %l4
  64         mov %g5, %l5
  65         mov %g6, %l6
  66         mov %g7, %l7
  67 .endm
  68
  69 .macro RESTORE_GLOBALS
  70         mov %l1, %g1
  71         mov %l2, %g2
  72         mov %l3, %g3
  73         mov %l4, %g4
  74         mov %l5, %g5
  75         mov %l6, %g6
  76         mov %l7, %g7
  77 .endm
  78
  79 /*
  80  * The following needs to be in sync with the
  81  * definition of the istate structure.
  82  */
  83 #define PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE    (STACK_WINDOW_SAVE_AREA_SIZE+(12*8))
  84 #define SAVED_TSTATE    -(1*8)
  85 #define SAVED_TPC       -(2*8)
  86 #define SAVED_TNPC      -(3*8)          /* <-- istate_t begins here */
  87 #define SAVED_Y         -(4*8)
  88 #define SAVED_I0        -(5*8)
  89 #define SAVED_I1        -(6*8)
  90 #define SAVED_I2        -(7*8)
  91 #define SAVED_I3        -(8*8)
  92 #define SAVED_I4        -(9*8)
  93 #define SAVED_I5        -(10*8)
  94 #define SAVED_I6        -(11*8)
  95 #define SAVED_I7        -(12*8)
  96
  97 .macro PREEMPTIBLE_HANDLER f
  98         sethi %hi(\f), %g1
  99         b preemptible_handler
 100         or %g1, %lo(\f), %g1
 101 .endm
 102
 103 #endif /* __ASM__ */
 104
 105 #endif
 106
 107 /** @}
 108  */