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/* $OpenBSD: trap.h,v 1.2 2001/08/20 20:23:52 jason Exp $ */
/* $NetBSD: trap.h,v 1.4 1999/06/07 05:28:04 eeh Exp $ */
/*
* Copyright (c) 1996-1999 Eduardo Horvath
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifndef _MACHINE_TRAP_H
#define _MACHINE_TRAP_H
/* trap vec (pri) description */
/* 0x000 unused */
#define T_POR 0x001 /* (0) power on reset */
#define T_WDR 0x002 /* (1) watchdog reset */
#define T_XIR 0x003 /* (1) externally initiated reset */
#define T_SIR 0x004 /* (1) software initiated reset */
#define T_RED_EXCEPTION 0x005 /* (1) RED state exception */
/* 0x006 unused */
/* 0x007 unused */
#define T_INST_EXCEPT 0x008 /* (5) instruction access exception */
#define T_TEXTFAULT 0x009 /* (2) ? Text fault */
#define T_INST_ERROR 0x00a /* (3) instruction access error */
/* 0x00b unused */
/* through 0x00f unused */
#define T_ILLINST 0x010 /* (7) illegal instruction */
#define T_PRIVINST 0x011 /* (6) privileged opcode */
/* 0x012 unused */
/* through 0x01f unused */
#define T_FPDISABLED 0x020 /* (8) fpu disabled */
#define T_FP_IEEE_754 0x021 /* (11) ieee 754 exception */
#define T_FP_OTHER 0x022 /* (11) other fp exception */
#define T_TAGOF 0x023 /* (14) tag overflow */
#define T_CLEAN_WINDOW 0x024 /* (10) clean window exception */
/* through 0x027 unused */
#define T_DIV0 0x028 /* (15) division routine was handed 0 */
/* 0x02a unused */
/* through 0x02f unused */
#define T_DATAFAULT 0x030 /* (12) address fault during data fetch */
/* 0x031 unused */
#define T_DATA_ERROR 0x032
#define T_DATA_PROT 0x033 /* Data protection ??? */
#define T_ALIGN 0x034 /* (10) address not properly aligned */
#define T_LDDF_ALIGN 0x035 /* (10) LDDF address not properly aligned */
#define T_STDF_ALIGN 0x036 /* (10) STDF address not properly aligned */
#define T_PRIVACT 0x037 /* (11) privileged action */
/* 0x038 unused */
/* through 0x03F unused */
#define T_ASYNC_ERROR 0x040 /* ???? */
#define T_L1INT 0x041 /* (31) level 1 interrupt */
#define T_L2INT 0x042 /* (30) level 2 interrupt */
#define T_L3INT 0x043 /* (29) level 3 interrupt */
#define T_L4INT 0x044 /* (28) level 4 interrupt */
#define T_L5INT 0x045 /* (27) level 5 interrupt */
#define T_L6INT 0x046 /* (26) level 6 interrupt */
#define T_L7INT 0x047 /* (25) level 7 interrupt */
#define T_L8INT 0x048 /* (24) level 8 interrupt */
#define T_L9INT 0x049 /* (23) level 9 interrupt */
#define T_L10INT 0x04a /* (22) level 10 interrupt */
#define T_L11INT 0x04b /* (21) level 11 interrupt */
#define T_L12INT 0x04c /* (20) level 12 interrupt */
#define T_L13INT 0x04d /* (19) level 13 interrupt */
#define T_L14INT 0x04e /* (18) level 14 interrupt */
#define T_L15INT 0x04f /* (17) level 15 interrupt */
/* 0x050 unused */
/* through 0x05F unused */
#define T_INTVEC 0x060 /* (16) interrupt vector [Interrupt Global Regs]*/
#define T_PA_WATCHPT 0x061 /* (12) Physical addr data watchpoint */
#define T_VA_WATCHPT 0x062 /* (11) Virtual addr data watchpoint */
#define T_ECCERR 0x063 /* (33) ECC correction error */
#define T_FIMMU_MISS 0x064 /* (2) fast instruction access MMU miss */
/* through 0x067 unused */
#define T_FDMMU_MISS 0x068 /* (2) fast data access MMU miss */
/* through 0x06b unused */
#define T_FDMMU_PROT 0x06C /* (2) fast data access protection */
/* through 0x06F unused */
/* 0x070...0x07f implementation dependent exceptions */
#define T_SPILL_N_NORM 0x080 /* (9) spill (n=0..7) normal */
/* through 0x09F unused */
#define T_SPILL_N_OTHER 0x0a0 /* (9) spill (n=0..7) other */
/* through 0x0bF unused */
#define T_FILL_N_NORM 0x0c0 /* (9) fill (n=0..7) normal */
/* through 0x0dF unused */
#define T_FILL_N_OTHER 0x0e0 /* (9) fill (n=0..7) other */
/* through 0x0fF unused */
/* beginning of `user' vectors (from trap instructions) - all priority 16 */
#define T_SUN_SYSCALL 0x100 /* system call */
#define T_BREAKPOINT 0x101 /* breakpoint `instruction' */
#define T_UDIV0 0x102 /* division routine was handed 0 */
#define T_FLUSHWIN 0x103 /* flush windows */
#define T_CLEANWIN 0x104 /* provide clean windows */
#define T_RANGECHECK 0x105 /* ? */
#define T_FIXALIGN 0x106 /* fix up unaligned accesses */
#define T_INTOF 0x107 /* integer overflow ? */
#define T_SVR4_SYSCALL 0x108 /* SVR4 system call */
#define T_BSD_SYSCALL 0x109 /* BSD system call */
#define T_KGDB_EXEC 0x10a /* for kernel gdb */
/* 0x10b..0x1ff are currently unallocated, except the following */
#define T_SVR4_GETCC 0x120
#define T_SVR4_SETCC 0x121
#define T_SVR4_GETPSR 0x122
#define T_SVR4_SETPSR 0x123
#define T_SVR4_GETHRTIME 0x124
#define T_SVR4_GETHRVTIME 0x125
#define T_SVR4_GETHRESTIME 0x127
#define T_GETCC 0x132
#define T_SETCC 0x133
#define T_SVID_SYSCALL 0x164
#define T_SPARC_INTL_SYSCALL 0x165
#define T_OS_VENDOR_SYSCALL 0x166
#define T_HW_OEM_SYSCALL 0x167
#define T_RTF_DEF_TRAP 0x168
#ifdef _KERNEL /* pseudo traps for locore.s */
#define T_RWRET -1 /* need first user window for trap return */
#define T_AST -2 /* no-op, just needed reschedule or profile */
#endif
/* flags to system call (flags in %g1 along with syscall number) */
#define SYSCALL_G2RFLAG 0x400 /* on success, return to %g2 rather than npc */
#define SYSCALL_G7RFLAG 0x800 /* use %g7 as above (deprecated) */
/*
* `software trap' macros to keep people happy (sparc v8 manual says not
* to set the upper bits).
*/
#define ST_BREAKPOINT (T_BREAKPOINT & 0x7f)
#define ST_DIV0 (T_DIV0 & 0x7f)
#define ST_FLUSHWIN (T_FLUSHWIN & 0x7f)
#define ST_SYSCALL (T_SUN_SYSCALL & 0x7f)
#endif /* _MACHINE_TRAP_H_ */
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