1 /* $NetBSD: trap.h,v 1.5 2003/01/21 19:46:49 martin Exp $ */ 2 3 /* 4 * Copyright (c) 1996-1999 Eduardo Horvath 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 13 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 14 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 15 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 16 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 17 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 18 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 19 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 20 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 21 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 22 * SUCH DAMAGE. 23 * 24 */ 25 26 27 #ifndef _MACHINE_TRAP_H 28 #define _MACHINE_TRAP_H 29 30 /* trap vec (pri) description */ 31 /* 0x000 unused */ 32 #define T_POR 0x001 /* (0) power on reset */ 33 #define T_WDR 0x002 /* (1) watchdog reset */ 34 #define T_XIR 0x003 /* (1) externally initiated reset */ 35 #define T_SIR 0x004 /* (1) software initiated reset */ 36 #define T_RED_EXCEPTION 0x005 /* (1) RED state exception */ 37 /* 0x006 unused */ 38 /* 0x007 unused */ 39 #define T_INST_EXCEPT 0x008 /* (5) instruction access exception */ 40 #define T_TEXTFAULT 0x009 /* (2) ? Text fault */ 41 #define T_INST_ERROR 0x00a /* (3) instruction access error */ 42 /* 0x00b unused */ 43 /* through 0x00f unused */ 44 #define T_ILLINST 0x010 /* (7) illegal instruction */ 45 #define T_PRIVINST 0x011 /* (6) privileged opcode */ 46 /* 0x012 unused */ 47 /* through 0x01f unused */ 48 #define T_FPDISABLED 0x020 /* (8) fpu disabled */ 49 #define T_FP_IEEE_754 0x021 /* (11) ieee 754 exception */ 50 #define T_FP_OTHER 0x022 /* (11) other fp exception */ 51 #define T_TAGOF 0x023 /* (14) tag overflow */ 52 #define T_CLEAN_WINDOW 0x024 /* (10) clean window exception */ 53 /* through 0x027 unused */ 54 #define T_IDIV0 0x028 /* (15) division by 0 */ 55 /* 0x02a unused */ 56 /* through 0x02f unused */ 57 #define T_DATAFAULT 0x030 /* (12) address fault during data fetch */ 58 /* 0x031 unused */ 59 #define T_DATA_ERROR 0x032 60 #define T_DATA_PROT 0x033 /* Data protection ??? */ 61 #define T_ALIGN 0x034 /* (10) address not properly aligned */ 62 #define T_LDDF_ALIGN 0x035 /* (10) LDDF address not properly aligned */ 63 #define T_STDF_ALIGN 0x036 /* (10) STDF address not properly aligned */ 64 #define T_PRIVACT 0x037 /* (11) privileged action */ 65 /* 0x038 unused */ 66 /* through 0x03F unused */ 67 #define T_ASYNC_ERROR 0x040 /* ???? */ 68 #define T_L1INT 0x041 /* (31) level 1 interrupt */ 69 #define T_L2INT 0x042 /* (30) level 2 interrupt */ 70 #define T_L3INT 0x043 /* (29) level 3 interrupt */ 71 #define T_L4INT 0x044 /* (28) level 4 interrupt */ 72 #define T_L5INT 0x045 /* (27) level 5 interrupt */ 73 #define T_L6INT 0x046 /* (26) level 6 interrupt */ 74 #define T_L7INT 0x047 /* (25) level 7 interrupt */ 75 #define T_L8INT 0x048 /* (24) level 8 interrupt */ 76 #define T_L9INT 0x049 /* (23) level 9 interrupt */ 77 #define T_L10INT 0x04a /* (22) level 10 interrupt */ 78 #define T_L11INT 0x04b /* (21) level 11 interrupt */ 79 #define T_L12INT 0x04c /* (20) level 12 interrupt */ 80 #define T_L13INT 0x04d /* (19) level 13 interrupt */ 81 #define T_L14INT 0x04e /* (18) level 14 interrupt */ 82 #define T_L15INT 0x04f /* (17) level 15 interrupt */ 83 /* 0x050 unused */ 84 /* through 0x05F unused */ 85 #define T_INTVEC 0x060 /* (16) interrupt vector [Interrupt Global Regs]*/ 86 #define T_PA_WATCHPT 0x061 /* (12) Physical addr data watchpoint */ 87 #define T_VA_WATCHPT 0x062 /* (11) Virtual addr data watchpoint */ 88 #define T_ECCERR 0x063 /* (33) ECC correction error */ 89 #define T_FIMMU_MISS 0x064 /* (2) fast instruction access MMU miss */ 90 /* through 0x067 unused */ 91 #define T_FDMMU_MISS 0x068 /* (2) fast data access MMU miss */ 92 /* through 0x06b unused */ 93 #define T_FDMMU_PROT 0x06C /* (2) fast data access protection */ 94 /* through 0x06F unused */ 95 /* 0x070...0x07f implementation dependent exceptions */ 96 #define T_SPILL_N_NORM 0x080 /* (9) spill (n=0..7) normal */ 97 /* through 0x09F unused */ 98 #define T_SPILL_N_OTHER 0x0a0 /* (9) spill (n=0..7) other */ 99 /* through 0x0bF unused */ 100 #define T_FILL_N_NORM 0x0c0 /* (9) fill (n=0..7) normal */ 101 /* through 0x0dF unused */ 102 #define T_FILL_N_OTHER 0x0e0 /* (9) fill (n=0..7) other */ 103 /* through 0x0fF unused */ 104 105 /* beginning of `user' vectors (from trap instructions) - all priority 16 */ 106 #define T_SUN_SYSCALL 0x100 /* system call */ 107 #define T_BREAKPOINT 0x101 /* breakpoint `instruction' */ 108 #define T_DIV0 0x102 /* division routine was handed 0 */ 109 #define T_FLUSHWIN 0x103 /* flush windows */ 110 #define T_CLEANWIN 0x104 /* provide clean windows */ 111 #define T_RANGECHECK 0x105 /* ? */ 112 #define T_FIXALIGN 0x106 /* fix up unaligned accesses */ 113 #define T_INTOF 0x107 /* integer overflow ? */ 114 #define T_SVR4_SYSCALL 0x108 /* SVR4 system call */ 115 #define T_BSD_SYSCALL 0x109 /* BSD system call */ 116 #define T_KGDB_EXEC 0x10a /* for kernel gdb */ 117 118 /* 0x10b..0x1ff are currently unallocated, except the following */ 119 #define T_SVR4_GETCC 0x120 120 #define T_SVR4_SETCC 0x121 121 #define T_SVR4_GETPSR 0x122 122 #define T_SVR4_SETPSR 0x123 123 #define T_SVR4_GETHRTIME 0x124 124 #define T_SVR4_GETHRVTIME 0x125 125 #define T_SVR4_GETHRESTIME 0x127 126 #define T_GETCC 0x132 127 #define T_SETCC 0x133 128 #define T_SVID_SYSCALL 0x164 129 #define T_SPARC_INTL_SYSCALL 0x165 130 #define T_OS_VENDOR_SYSCALL 0x166 131 #define T_HW_OEM_SYSCALL 0x167 132 #define T_RTF_DEF_TRAP 0x168 133 134 #ifdef _KERNEL /* pseudo traps for locore.s */ 135 #define T_RWRET -1 /* need first user window for trap return */ 136 #define T_AST -2 /* no-op, just needed reschedule or profile */ 137 #endif 138 139 /* flags to system call (flags in %g1 along with syscall number) */ 140 #define SYSCALL_G2RFLAG 0x400 /* on success, return to %g2 rather than npc */ 141 #define SYSCALL_G7RFLAG 0x800 /* use %g7 as above (deprecated) */ 142 143 /* 144 * `software trap' macros to keep people happy (sparc v8 manual says not 145 * to set the upper bits). Correct mask is 0xff for v9, but all values 146 * here are small enough - so keep it the same as the sparc port. 147 */ 148 #define ST_BREAKPOINT (T_BREAKPOINT & 0x7f) 149 #define ST_DIV0 (T_DIV0 & 0x7f) 150 #define ST_FLUSHWIN (T_FLUSHWIN & 0x7f) 151 #define ST_SYSCALL (T_SUN_SYSCALL & 0x7f) 152 153 #endif /* _MACHINE_TRAP_H_ */ 154