diff options
Diffstat (limited to 'sys/arch/mvmeppc/include/trap.h')
| -rw-r--r-- | sys/arch/mvmeppc/include/trap.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/sys/arch/mvmeppc/include/trap.h b/sys/arch/mvmeppc/include/trap.h new file mode 100644 index 00000000000..f8460494e16 --- /dev/null +++ b/sys/arch/mvmeppc/include/trap.h @@ -0,0 +1,84 @@ +/* $NetBSD: trap.h,v 1.1 1996/09/30 16:34:35 ws Exp $ */ + +/* + * Copyright (C) 1995, 1996 Wolfgang Solfrank. + * Copyright (C) 1995, 1996 TooLs GmbH. + * All rights reserved. + * + * 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 TooLs GmbH. + * 4. The name of TooLs GmbH may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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_ + +#define EXC_RSVD 0x0000 /* Reserved */ +#define EXC_RST 0x0100 /* Reset */ +#define EXC_MCHK 0x0200 /* Machine Check */ +#define EXC_DSI 0x0300 /* Data Storage Interrupt */ +#define EXC_ISI 0x0400 /* Instruction Storage Interrupt */ +#define EXC_EXI 0x0500 /* External Interrupt */ +#define EXC_ALI 0x0600 /* Alignment Interrupt */ +#define EXC_PGM 0x0700 /* Program Interrupt */ +#define EXC_FPU 0x0800 /* Floating-point Unavailable */ +#define EXC_DECR 0x0900 /* Decrementer Interrupt */ +#define EXC_SC 0x0c00 /* System Call */ +#define EXC_TRC 0x0d00 /* Trace */ +#define EXC_FPA 0x0e00 /* Floating-point Assist */ + +/* The following are only available on 604: */ +#define EXC_PERF 0x0f00 /* Performance Monitoring */ +#define EXC_BPT 0x1300 /* Instruction Breakpoint */ +#define EXC_SMI 0x1400 /* System Managment Interrupt */ + +/* And these are only on the 603: */ +#define EXC_IMISS 0x1000 /* Instruction translation miss */ +#define EXC_DLMISS 0x1100 /* Data load translation miss */ +#define EXC_DSMISS 0x1200 /* Data store translation miss */ + +#define EXC_LAST 0x2f00 /* Last possible exception vector */ + +#define EXC_AST 0x3000 /* Fake AST vector */ + +/* Trap was in user mode */ +#define EXC_USER 0x10000 + +/* + * EXC_ALI sets bits in the DSISR and DAR to provide enough + * information to recover from the unaligned access without needing to + * parse the offending instruction. This includes certain bits of the + * opcode, and information about what registers are used. The opcode + * indicator values below come from Appendix F of Book III of "The + * PowerPC Architecture". + */ + +#define EXC_ALI_OPCODE_INDICATOR(dsisr) ((dsisr >> 10) & 0x7f) +#define EXC_ALI_LFD 0x09 +#define EXC_ALI_STFD 0x0b + +/* Macros to extract register information */ +#define EXC_ALI_RST(dsisr) ((dsisr >> 5) & 0x1f) /* source or target */ +#define EXC_ALI_RA(dsisr) (dsisr & 0x1f) + +#endif /* _MACHINE_TRAP_H_ */ |