1/* $OpenBSD: trap.h,v 1.5 2013/04/02 13:24:57 kettenis Exp $ */
2/* $NetBSD: trap.h,v 1.4 1999/06/07 05:28:04 eeh Exp $ */
3
4/*
5 * Copyright (c) 1996-1999 Eduardo Horvath
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 *
25 */
26
27
28#ifndef _MACHINE_TRAP_H
29#define _MACHINE_TRAP_H
30
31/* trap vec (pri) description */
32/* 0x000 unused */
33#define T_POR 0x001 /* (0) power on reset */
34#define T_WDR 0x002 /* (1) watchdog reset */
35#define T_XIR 0x003 /* (1) externally initiated reset */
36#define T_SIR 0x004 /* (1) software initiated reset */
37#define T_RED_EXCEPTION 0x005 /* (1) RED state exception */
38/* 0x006 unused */
39/* 0x007 unused */
40#define T_INST_EXCEPT 0x008 /* (5) instruction access exception */
41#define T_TEXTFAULT 0x009 /* (2) ? Text fault */
42#define T_INST_ERROR 0x00a /* (3) instruction access error */
43/* 0x00b unused */
44/* through 0x00f unused */
45#define T_ILLINST 0x010 /* (7) illegal instruction */
46#define T_PRIVINST 0x011 /* (6) privileged opcode */
47#define T_UNIMP_LDD 0x012 /* (6) unimplemented LDD */
48#define T_UNIMP_STD 0x013 /* (6) unimplemented STD */
49/* 0x014 unused */
50/* through 0x01f unused */
51#define T_FPDISABLED 0x020 /* (8) fpu disabled */
52#define T_FP_IEEE_754 0x021 /* (11) ieee 754 exception */
53#define T_FP_OTHER 0x022 /* (11) other fp exception */
54#define T_TAGOF 0x023 /* (14) tag overflow */
55#define T_CLEAN_WINDOW 0x024 /* (10) clean window exception */
56/* 0x025 unused */
57/* through 0x027 unused */
58#define T_DIV0 0x028 /* (15) division routine was handed 0 */
59#define T_PROCERR 0x029 /* (4) internal processor error */
60/* 0x02a unused */
61/* through 0x02f unused */
62#define T_DATAFAULT 0x030 /* (12) address fault during data fetch */
63#define T_DATA_MMU_MISS 0x031 /* (12) data access MMU miss */
64#define T_DATA_ERROR 0x032 /* (12) data access error */
65#define T_DATA_PROT 0x033 /* (12) Data protection ??? */
66#define T_ALIGN 0x034 /* (10) address not properly aligned */
67#define T_LDDF_ALIGN 0x035 /* (10) LDDF address not properly aligned */
68#define T_STDF_ALIGN 0x036 /* (10) STDF address not properly aligned */
69#define T_PRIVACT 0x037 /* (11) privileged action */
70#define T_LDQF_ALIGN 0x038 /* (10) LDQF address not properly aligned */
71#define T_STQF_ALIGN 0x039 /* (10) STQF address not properly aligned */
72/* 0x03a unused */
73/* through 0x03f unused */
74#define T_ASYNC_ERROR 0x040 /* (2) ???? */
75#define T_L1INT 0x041 /* (31) level 1 interrupt */
76#define T_L2INT 0x042 /* (30) level 2 interrupt */
77#define T_L3INT 0x043 /* (29) level 3 interrupt */
78#define T_L4INT 0x044 /* (28) level 4 interrupt */
79#define T_L5INT 0x045 /* (27) level 5 interrupt */
80#define T_L6INT 0x046 /* (26) level 6 interrupt */
81#define T_L7INT 0x047 /* (25) level 7 interrupt */
82#define T_L8INT 0x048 /* (24) level 8 interrupt */
83#define T_L9INT 0x049 /* (23) level 9 interrupt */
84#define T_L10INT 0x04a /* (22) level 10 interrupt */
85#define T_L11INT 0x04b /* (21) level 11 interrupt */
86#define T_L12INT 0x04c /* (20) level 12 interrupt */
87#define T_L13INT 0x04d /* (19) level 13 interrupt */
88#define T_L14INT 0x04e /* (18) level 14 interrupt */
89#define T_L15INT 0x04f /* (17) level 15 interrupt */
90/* 0x050 unused */
91/* through 0x05f unused */
92#define T_INTVEC 0x060 /* (16) interrupt vector [Interrupt Global Regs]*/
93#define T_PA_WATCHPT 0x061 /* (12) Physical addr data watchpoint */
94#define T_VA_WATCHPT 0x062 /* (11) Virtual addr data watchpoint */
95#define T_ECCERR 0x063 /* (33) ECC correction error */
96#define T_FIMMU_MISS 0x064 /* (2) fast instruction access MMU miss */
97/* through 0x067 unused */
98#define T_FDMMU_MISS 0x068 /* (2) fast data access MMU miss */
99/* through 0x06b unused */
100#define T_FDMMU_PROT 0x06c /* (2) fast data access protection */
101/* through 0x06f unused */
102/* 0x070...0x07f implementation dependent exceptions */
103#define T_SPILL_N_NORM 0x080 /* (9) spill (n=0..7) normal */
104/* through 0x09f unused */
105#define T_SPILL_N_OTHER 0x0a0 /* (9) spill (n=0..7) other */
106/* through 0x0bf unused */
107#define T_FILL_N_NORM 0x0c0 /* (9) fill (n=0..7) normal */
108/* through 0x0df unused */
109#define T_FILL_N_OTHER 0x0e0 /* (9) fill (n=0..7) other */
110/* through 0x0ff unused */
111
112/* beginning of `user' vectors (from trap instructions) - all priority 16 */
113#define T_SUN_SYSCALL 0x100 /* system call */
114#define T_BREAKPOINT 0x101 /* breakpoint `instruction' */
115#define T_UDIV0 0x102 /* division routine was handed 0 */
116#define T_FLUSHWIN 0x103 /* flush windows */
117#define T_CLEANWIN 0x104 /* provide clean windows */
118#define T_RANGECHECK 0x105 /* ? */
119#define T_FIXALIGN 0x106 /* fix up unaligned accesses */
120#define T_INTOF 0x107 /* integer overflow ? */
121#define T_SVR4_SYSCALL 0x108 /* SVR4 system call */
122#define T_BSD_SYSCALL 0x109 /* BSD system call */
123#define T_KGDB_EXEC 0x10a /* for kernel gdb */
124
125/* 0x10b..0x1ff are currently unallocated, except the following */
126#define T_SVR4_GETCC 0x120
127#define T_SVR4_SETCC 0x121
128#define T_SVR4_GETPSR 0x122
129#define T_SVR4_SETPSR 0x123
130#define T_SVR4_GETHRTIME 0x124
131#define T_SVR4_GETHRVTIME 0x125
132#define T_SVR4_GETHRESTIME 0x127
133#define T_GETCC 0x132
134#define T_SETCC 0x133
135#define T_SVID_SYSCALL 0x164
136#define T_SPARC_INTL_SYSCALL 0x165
137#define T_OS_VENDOR_SYSCALL 0x166
138#define T_HW_OEM_SYSCALL 0x167
139#define T_RTF_DEF_TRAP 0x168
140#define T_MON_BREAKPOINT 0x17f
141
142#ifdef _KERNEL /* pseudo traps for locore.s */
143#define T_RWRET -1 /* need first user window for trap return */
144#define T_AST -2 /* no-op, just needed reschedule or profile */
145#endif
146
147/* flags to system call (flags in %g1 along with syscall number) */
148#define SYSCALL_G2RFLAG 0x400 /* on success, return to %g2 rather than npc */
149
150/*
151 * `software trap' macros to keep people happy (sparc v8 manual says not
152 * to set the upper bits).
153 */
154#define ST_BREAKPOINT (T_BREAKPOINT & 0x7f)
155#define ST_DIV0 (T_DIV0 & 0x7f)
156#define ST_FLUSHWIN (T_FLUSHWIN & 0x7f)
157#define ST_SYSCALL (T_SUN_SYSCALL & 0x7f)
158
159#endif /* _MACHINE_TRAP_H_ */