Return to trap.h CVS log

Up to [local] / sys / arch / mips64 / include

Annotation of sys/arch/mips64/include/trap.h, Revision 1.1.1.1

1.1       nbrk        1: /*      $OpenBSD: trap.h,v 1.8 2007/05/20 14:34:21 miod Exp $  */
                      2:
                      3: /*
                      4:  * Copyright (c) 1988 University of Utah.
                      5:  * Copyright (c) 1992, 1993
                      6:  *     The Regents of the University of California.  All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to Berkeley by
                      9:  * the Systems Programming Group of the University of Utah Computer
                     10:  * Science Department and Ralph Campbell.
                     11:  *
                     12:  * Redistribution and use in source and binary forms, with or without
                     13:  * modification, are permitted provided that the following conditions
                     14:  * are met:
                     15:  * 1. Redistributions of source code must retain the above copyright
                     16:  *    notice, this list of conditions and the following disclaimer.
                     17:  * 2. Redistributions in binary form must reproduce the above copyright
                     18:  *    notice, this list of conditions and the following disclaimer in the
                     19:  *    documentation and/or other materials provided with the distribution.
                     20:  * 3. Neither the name of the University nor the names of its contributors
                     21:  *    may be used to endorse or promote products derived from this software
                     22:  *    without specific prior written permission.
                     23:  *
                     24:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     25:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     26:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     27:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     28:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     29:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     30:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     31:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     32:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     33:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     34:  * SUCH DAMAGE.
                     35:  *
                     36:  *     from: Utah Hdr: trap.h 1.1 90/07/09
                     37:  *     from: @(#)trap.h        8.1 (Berkeley) 6/10/93
                     38:  */
                     39:
                     40: #ifndef _MIPS_TRAP_H_
                     41: #define _MIPS_TRAP_H_
                     42:
                     43: /*
                     44:  * Trap codes (ExcCode in the cause register); also known in trap.c for
                     45:  * name strings.
                     46:  */
                     47:
                     48: #define T_INT                  0       /* Interrupt pending */
                     49: #define T_TLB_MOD              1       /* TLB modified fault */
                     50: #define T_TLB_LD_MISS          2       /* TLB miss on load or ifetch */
                     51: #define T_TLB_ST_MISS          3       /* TLB miss on a store */
                     52: #define T_ADDR_ERR_LD          4       /* Address error on a load or ifetch */
                     53: #define T_ADDR_ERR_ST          5       /* Address error on a store */
                     54: #define T_BUS_ERR_IFETCH       6       /* Bus error on an ifetch */
                     55: #define T_BUS_ERR_LD_ST                7       /* Bus error on a load or store */
                     56: #define T_SYSCALL              8       /* System call */
                     57: #define T_BREAK                        9       /* Breakpoint */
                     58: #define T_RES_INST             10      /* Reserved instruction exception */
                     59: #define T_COP_UNUSABLE         11      /* Coprocessor unusable */
                     60: #define T_OVFLOW               12      /* Arithmetic overflow */
                     61: #define        T_TRAP                  13      /* Trap instruction */
                     62: #define        T_VCEI                  14      /* R4k Virtual coherency instruction */
                     63: #define        T_FPE                   15      /* Floating point exception */
                     64: #define        T_IWATCH                16      /* R4k Inst. Watch address reference */
                     65: #define        T_C2E                   18      /* R5k Coprocessor 2 exception */
                     66: #define        T_MDMX                  22      /* R5k MDMX unusable */
                     67: #define        T_DWATCH                23      /* Data Watch address reference */
                     68: #define        T_MCHECK                24      /* Machine check */
                     69: #define        T_CACHEERR              30      /* Cache error */
                     70: #define T_VCED                 31      /* R4k Virtual coherency data */
                     71:
                     72: #define        T_USER                  0x20    /* user-mode flag or'ed with type */
                     73:
                     74: /*
                     75:  *  Defines for trap handler catching kernel accessng memory.
                     76:  */
                     77: #define        KT_COPYERR      1               /* User space copy error */
                     78: #define        KT_KCOPYERR     2               /* Kernel space copy error */
                     79: #define        KT_DDBERR       3               /* DDB access error */
                     80:
                     81: #ifndef _LOCORE
                     82:
                     83: #if defined(DDB) || defined(DEBUG)
                     84:
                     85: struct trapdebug {              /* trap history buffer for debugging */
                     86:        u_int   status;
                     87:         u_int  cause;
                     88:         u_long vadr;
                     89:         u_long   pc;
                     90:         u_long   ra;
                     91:         u_long   sp;
                     92:         u_int   code;
                     93:        u_int   cpl;
                     94: };
                     95:
                     96: #define        trapdebug_enter(x, cd) {        \
                     97:        u_int32_t __s = disableintr();  \
                     98:        trp->status = x->sr;            \
                     99:        trp->cause = x->cause;          \
                    100:        trp->vadr = x->badvaddr;        \
                    101:        trp->pc = x->pc;                \
                    102:        trp->sp = x->sp;                \
                    103:        trp->ra = x->ra;                \
                    104:        trp->cpl = x->cpl;              \
                    105:        trp->code = cd;                         \
                    106:        if (++trp == &trapdebug[TRAPSIZE])      \
                    107:                trp = trapdebug;                \
                    108:        setsr(__s);                             \
                    109:  }
                    110:
                    111: #define TRAPSIZE 10            /* Trap log buffer length */
                    112: extern struct trapdebug trapdebug[TRAPSIZE], *trp;
                    113:
                    114: void trapDump(char *msg);
                    115:
                    116: #else
                    117:
                    118: #define        trapdebug_enter(x, y)
                    119:
                    120: #endif
                    121: #endif /* _LOCORE */
                    122:
                    123: #endif /* !_MIPS_TRAP_H_ */