sys/arch/hppa/include/trap.h

   1 /*      $NetBSD: trap.h,v 1.2 2007/12/22 14:11:10 skrll Exp $   */
   2
   3 /*      $OpenBSD: trap.h,v 1.8 2000/02/10 20:05:39 mickey Exp $ */
   4
   5 /*
   6  * Copyright (c) 1999-2004 Michael Shalayeff
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21  * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
  22  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  24  * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  26  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  27  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  28  * THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #ifndef _HPPA_TRAP_H_
  32 #define _HPPA_TRAP_H_
  33
  34 /*
  35  * This is PA-RISC trap types per 1.1 specs, see .c files for references.
  36  */
  37 #define T_NONEXIST      0       /* invalid interrupt vector */
  38 #define T_HPMC          1       /* high priority machine check */
  39 #define T_POWERFAIL     2       /* power failure */
  40 #define T_RECOVERY      3       /* recovery counter */
  41 #define T_INTERRUPT     4       /* external interrupt */
  42 #define T_LPMC          5       /* low-priority machine check */
  43 #define T_ITLBMISS      6       /* instruction TLB miss fault */
  44 #define T_IPROT         7       /* instruction protection */
  45 #define T_ILLEGAL       8       /* Illegal instruction */
  46 #define T_IBREAK        9       /* break instruction */
  47 #define T_PRIV_OP       10      /* privileged operation */
  48 #define T_PRIV_REG      11      /* privileged register */
  49 #define T_OVERFLOW      12      /* overflow */
  50 #define T_CONDITION     13      /* conditional */
  51 #define T_EXCEPTION     14      /* assist exception */
  52 #define T_DTLBMISS      15      /* data TLB miss */
  53 #define T_ITLBMISSNA    16      /* ITLB non-access miss */
  54 #define T_DTLBMISSNA    17      /* DTLB non-access miss */
  55 #define T_DPROT         18      /* data protection/rights/alignment <7100 */
  56 #define T_DBREAK        19      /* data break */
  57 #define T_TLB_DIRTY     20      /* TLB dirty bit */
  58 #define T_PAGEREF       21      /* page reference */
  59 #define T_EMULATION     22      /* assist emulation */
  60 #define T_HIGHERPL      23      /* higher-privelege transfer */
  61 #define T_LOWERPL       24      /* lower-privilege transfer */
  62 #define T_TAKENBR       25      /* taken branch */
  63 #define T_DATACC        26      /* data access rights >=7100 */
  64 #define T_DATAPID       27      /* data protection ID >=7100 */
  65 #define T_DATALIGN      28      /* unaligned data ref */
  66 #define T_PERFMON       29      /* performance monitor interrupt */
  67 #define T_IDEBUG        30      /* debug SFU interrupt */
  68 #define T_DDEBUG        31      /* debug SFU interrupt */
  69
  70 /*
  71  * Reserved range for traps is 0-63, place user flag at 6th bit
  72  */
  73 #define T_USER_POS      25
  74 #define T_USER          (1 << (31 - T_USER_POS))
  75
  76 /*
  77  * Various trap frame flags.
  78  */
  79 #define TFF_LAST_POS    0
  80 #define TFF_ITLB_POS    1
  81 #define TFF_SYS_POS     2
  82 #define TFF_INTR_POS    3
  83
  84 #define TFF_LAST        (1 << (31 - TFF_LAST_POS))
  85 #define TFF_ITLB        (1 << (31 - TFF_ITLB_POS))
  86 #define TFF_SYS         (1 << (31 - TFF_SYS_POS))
  87 #define TFF_INTR        (1 << (31 - TFF_INTR_POS))
  88
  89 /*
  90  * Define this for pretty printings of trapflags.
  91  */
  92 #define T_BITS  "\020\07user\036intr\037itlb\040last"
  93
  94 /*
  95  * These are break instruction entry points.
  96  */
  97 /* im5 */
  98 #define HPPA_BREAK_KERNEL       0
  99 /* im13 */
 100 #define HPPA_BREAK_SS           4
 101 #define HPPA_BREAK_KGDB         5
 102 #define HPPA_BREAK_GET_PSW      9
 103 #define HPPA_BREAK_SET_PSW      10
 104
 105 /*
 106  * break instruction decoding.
 107  */
 108 #define break5(i)       ((i) & 0x1f)
 109 #define break13(i)      (((i) >> 13) & 0x1fff)
 110
 111 #endif  /* _HPPA_TRAP_H_ */
 112