1/* $NetBSD: trap.h,v 1.12 2018/12/19 13:57:50 maxv 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/* 0x029 unused */
56/* through 0x02f unused */
57#define T_DATAFAULT 0x030 /* (12) address fault during data fetch */
58#define T_DATA_MMU_MISS 0x031 /* (N/A) address fault during data fetch [USIII] */
59#define T_DATA_ERROR 0x032 /* (12) data access error */
60#define T_DATA_PROT 0x033 /* (12) 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_FAST_ECC_ERROR 0x070 /* (2) fast ECC error [USIII] */
97#define T_DC_PAR_ERR 0x071 /* (2) dcache parity error [USIII] */
98#define T_IC_PAR_ERR 0x072 /* (2) icache parity error [USIII] */
99#define T_CPU_MONDO 0x07c /* cpu mondo [SUN4V] */
100#define T_SPILL_N_NORM 0x080 /* (9) spill (n=0..7) normal */
101/* through 0x09f unused */
102#define T_SPILL_N_OTHER 0x0a0 /* (9) spill (n=0..7) other */
103/* through 0x0bF unused */
104#define T_FILL_N_NORM 0x0c0 /* (9) fill (n=0..7) normal */
105/* through 0x0dF unused */
106#define T_FILL_N_OTHER 0x0e0 /* (9) fill (n=0..7) other */
107/* through 0x0fF unused */
108
109/* beginning of `user' vectors (from trap instructions) - all priority 16 */
110#define T_SUN_SYSCALL 0x100 /* system call */
111#define T_BREAKPOINT 0x101 /* breakpoint `instruction' */
112#define T_DIV0 0x102 /* division routine was handed 0 */
113#define T_FLUSHWIN 0x103 /* flush windows */
114#define T_CLEANWIN 0x104 /* provide clean windows */
115#define T_RANGECHECK 0x105 /* ? */
116#define T_FIXALIGN 0x106 /* fix up unaligned accesses */
117#define T_INTOF 0x107 /* integer overflow ? */
118#define T_BSD_SYSCALL 0x109 /* BSD system call */
119#define T_KGDB_EXEC 0x10a /* for kernel gdb */
120
121/* 0x10c..0x1ff are currently unallocated, except the following */
122#define T_GETCC 0x132
123#define T_SETCC 0x133
124#define T_SVID_SYSCALL 0x164
125#define T_SPARC_INTL_SYSCALL 0x165
126#define T_OS_VENDOR_SYSCALL 0x166
127#define T_HW_OEM_SYSCALL 0x167
128#define T_RTF_DEF_TRAP 0x168
129
130#ifdef _KERNEL /* pseudo traps for locore.s */
131#define T_RWRET -1 /* need first user window for trap return */
132#define T_AST -2 /* no-op, just needed reschedule or profile */
133#endif
134
135/* flags to system call (flags in %g1 along with syscall number) */
136#define SYSCALL_G2RFLAG 0x400 /* on success, return to %g2 rather than npc */
137#define SYSCALL_G7RFLAG 0x800 /* use %g7 as above (deprecated) */
138#define SYSCALL_G5RFLAG 0xc00 /* use %g5 as above (only ABI compatible way) */
139
140/* Software traps */
141#ifdef SUN4V
142#define ST_FAST_TRAP 0x80
143#define ST_MMU_MAP_ADDR 0x83
144#define ST_MMU_UNMAP_ADDR 0x84
145#define ST_CORE_TRAP 0xff
146#endif
147
148/*
149 * `software trap' macros to keep people happy (sparc v8 manual says not
150 * to set the upper bits). Correct mask is 0xff for v9, but all values
151 * here are small enough - so keep it the same as the sparc port.
152 */
153#define ST_BREAKPOINT (T_BREAKPOINT & 0x7f)
154#define ST_DIV0 (T_DIV0 & 0x7f)
155#define ST_FLUSHWIN (T_FLUSHWIN & 0x7f)
156#define ST_SYSCALL (T_SUN_SYSCALL & 0x7f)
157
158#endif /* _MACHINE_TRAP_H_ */