diff options
Diffstat (limited to 'klibc/include/arch/sparc/machine/trap.h')
| -rw-r--r-- | klibc/include/arch/sparc/machine/trap.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/klibc/include/arch/sparc/machine/trap.h b/klibc/include/arch/sparc/machine/trap.h new file mode 100644 index 0000000000..42c3ef6ae2 --- /dev/null +++ b/klibc/include/arch/sparc/machine/trap.h @@ -0,0 +1,141 @@ +/* $NetBSD: trap.h,v 1.11 1999/01/20 00:15:08 pk Exp $ */ + +/* + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * This software was developed by the Computer Systems Engineering group + * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and + * contributed to Berkeley. + * + * All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Lawrence Berkeley Laboratory. + * + * 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. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. + * + * @(#)trap.h 8.1 (Berkeley) 6/11/93 + */ +/* + * Sun4m support by Aaron Brown, Harvard University. + * Changes Copyright (c) 1995 The President and Fellows of Harvard College. + * All rights reserved. + */ + +#ifndef _MACHINE_TRAP_H +#define _MACHINE_TRAP_H + +/* trap vec (pri) description */ +#define T_RESET 0x00 /* (1) not actually vectored; jumps to 0 */ +#define T_TEXTFAULT 0x01 /* (2) address fault during instr fetch */ +#define T_ILLINST 0x02 /* (3) illegal instruction */ +#define T_PRIVINST 0x03 /* (4) privileged instruction */ +#define T_FPDISABLED 0x04 /* (5) fp instr while fp disabled */ +#define T_WINOF 0x05 /* (6) register window overflow */ +#define T_WINUF 0x06 /* (7) register window underflow */ +#define T_ALIGN 0x07 /* (8) address not properly aligned */ +#define T_FPE 0x08 /* (9) floating point exception */ +#define T_DATAFAULT 0x09 /* (10) address fault during data fetch */ +#define T_TAGOF 0x0a /* (11) tag overflow */ +/* 0x0b unused */ +/* 0x0c unused */ +/* 0x0d unused */ +/* 0x0e unused */ +/* 0x0f unused */ +/* 0x10 unused */ +#define T_L1INT 0x11 /* (27) level 1 interrupt */ +#define T_L2INT 0x12 /* (26) level 2 interrupt */ +#define T_L3INT 0x13 /* (25) level 3 interrupt */ +#define T_L4INT 0x14 /* (24) level 4 interrupt */ +#define T_L5INT 0x15 /* (23) level 5 interrupt */ +#define T_L6INT 0x16 /* (22) level 6 interrupt */ +#define T_L7INT 0x17 /* (21) level 7 interrupt */ +#define T_L8INT 0x18 /* (20) level 8 interrupt */ +#define T_L9INT 0x19 /* (19) level 9 interrupt */ +#define T_L10INT 0x1a /* (18) level 10 interrupt */ +#define T_L11INT 0x1b /* (17) level 11 interrupt */ +#define T_L12INT 0x1c /* (16) level 12 interrupt */ +#define T_L13INT 0x1d /* (15) level 13 interrupt */ +#define T_L14INT 0x1e /* (14) level 14 interrupt */ +#define T_L15INT 0x1f /* (13) level 15 interrupt */ +/* 0x20 unused */ +/* through 0x23 unused */ +#define T_CPDISABLED 0x24 /* (5) coprocessor instr while disabled */ +#define T_UNIMPLFLUSH 0x25 /* Unimplemented FLUSH */ +/* through 0x27 unused */ +#define T_CPEXCEPTION 0x28 /* (9) coprocessor exception */ +/* 0x29 unused */ +#define T_IDIV0 0x2a /* divide by zero (from hw [su]div instr) */ +#define T_STOREBUFFAULT 0x2b /* SuperSPARC: Store buffer copy-back fault */ +/* 0x2c unused */ +/* through 0x7f unused */ + +/* beginning of `user' vectors (from trap instructions) - all priority 12 */ +#define T_SUN_SYSCALL 0x80 /* system call */ +#define T_BREAKPOINT 0x81 /* breakpoint `instruction' */ +#define T_DIV0 0x82 /* division routine was handed 0 */ +#define T_FLUSHWIN 0x83 /* flush windows */ +#define T_CLEANWIN 0x84 /* provide clean windows */ +#define T_RANGECHECK 0x85 /* ? */ +#define T_FIXALIGN 0x86 /* fix up unaligned accesses */ +#define T_INTOF 0x87 /* integer overflow ? */ +#define T_SVR4_SYSCALL 0x88 /* SVR4 system call */ +#define T_BSD_SYSCALL 0x89 /* BSD system call */ +#define T_KGDB_EXEC 0x8a /* for kernel gdb */ + +/* 0x8b..0xff are currently unallocated, except the following */ +#define T_SVR4_GETCC 0xa0 +#define T_SVR4_SETCC 0xa1 +#define T_SVR4_GETPSR 0xa2 +#define T_SVR4_SETPSR 0xa3 +#define T_SVR4_GETHRTIME 0xa4 +#define T_SVR4_GETHRVTIME 0xa5 +#define T_SVR4_GETHRESTIME 0xa7 + + +#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_ */ |