1257162Snwhitehorn/*- 2257162Snwhitehorn * Copyright (C) 1995, 1996 Wolfgang Solfrank. 3257162Snwhitehorn * Copyright (C) 1995, 1996 TooLs GmbH. 4257162Snwhitehorn * All rights reserved. 5257162Snwhitehorn * 6257162Snwhitehorn * Redistribution and use in source and binary forms, with or without 7257162Snwhitehorn * modification, are permitted provided that the following conditions 8257162Snwhitehorn * are met: 9257162Snwhitehorn * 1. Redistributions of source code must retain the above copyright 10257162Snwhitehorn * notice, this list of conditions and the following disclaimer. 11257162Snwhitehorn * 2. Redistributions in binary form must reproduce the above copyright 12257162Snwhitehorn * notice, this list of conditions and the following disclaimer in the 13257162Snwhitehorn * documentation and/or other materials provided with the distribution. 14257162Snwhitehorn * 3. All advertising materials mentioning features or use of this software 15257162Snwhitehorn * must display the following acknowledgement: 16257162Snwhitehorn * This product includes software developed by TooLs GmbH. 17257162Snwhitehorn * 4. The name of TooLs GmbH may not be used to endorse or promote products 18257162Snwhitehorn * derived from this software without specific prior written permission. 19257162Snwhitehorn * 20257162Snwhitehorn * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 21257162Snwhitehorn * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22257162Snwhitehorn * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23257162Snwhitehorn * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24257162Snwhitehorn * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 25257162Snwhitehorn * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 26257162Snwhitehorn * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27257162Snwhitehorn * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 28257162Snwhitehorn * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 29257162Snwhitehorn * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30257162Snwhitehorn * 31257162Snwhitehorn * $NetBSD: trap.h,v 1.7 2002/02/22 13:51:40 kleink Exp $ 32257162Snwhitehorn * $FreeBSD: releng/11.0/sys/powerpc/include/trap.h 292071 2015-12-11 01:23:18Z jhibbits $ 33257162Snwhitehorn */ 3477957Sbenno 35257162Snwhitehorn#ifndef _POWERPC_TRAP_H_ 36257162Snwhitehorn#define _POWERPC_TRAP_H_ 37257162Snwhitehorn 38257162Snwhitehorn#define EXC_RSVD 0x0000 /* Reserved */ 39257162Snwhitehorn#define EXC_RST 0x0100 /* Reset; all but IBM4xx */ 40257162Snwhitehorn#define EXC_MCHK 0x0200 /* Machine Check */ 41257162Snwhitehorn#define EXC_DSI 0x0300 /* Data Storage Interrupt */ 42257162Snwhitehorn#define EXC_DSE 0x0380 /* Data Segment Interrupt */ 43257162Snwhitehorn#define EXC_ISI 0x0400 /* Instruction Storage Interrupt */ 44257162Snwhitehorn#define EXC_ISE 0x0480 /* Instruction Segment Interrupt */ 45257162Snwhitehorn#define EXC_EXI 0x0500 /* External Interrupt */ 46257162Snwhitehorn#define EXC_ALI 0x0600 /* Alignment Interrupt */ 47257162Snwhitehorn#define EXC_PGM 0x0700 /* Program Interrupt */ 48257162Snwhitehorn#define EXC_FPU 0x0800 /* Floating-point Unavailable */ 49257162Snwhitehorn#define EXC_DECR 0x0900 /* Decrementer Interrupt */ 50257162Snwhitehorn#define EXC_SC 0x0c00 /* System Call */ 51257162Snwhitehorn#define EXC_TRC 0x0d00 /* Trace */ 52257162Snwhitehorn#define EXC_FPA 0x0e00 /* Floating-point Assist */ 53257162Snwhitehorn 54257162Snwhitehorn/* The following is only available on the 601: */ 55257162Snwhitehorn#define EXC_RUNMODETRC 0x2000 /* Run Mode/Trace Exception */ 56257162Snwhitehorn 57257162Snwhitehorn/* The following are only available on 970(G5): */ 58257162Snwhitehorn#define EXC_VECAST_G5 0x1700 /* AltiVec Assist */ 59257162Snwhitehorn 60257162Snwhitehorn/* The following are only available on 7400(G4): */ 61257162Snwhitehorn#define EXC_VEC 0x0f20 /* AltiVec Unavailable */ 62257162Snwhitehorn#define EXC_VECAST_G4 0x1600 /* AltiVec Assist */ 63257162Snwhitehorn 64257162Snwhitehorn/* The following are only available on 604/750/7400: */ 65257162Snwhitehorn#define EXC_PERF 0x0f00 /* Performance Monitoring */ 66257162Snwhitehorn#define EXC_BPT 0x1300 /* Instruction Breakpoint */ 67257162Snwhitehorn#define EXC_SMI 0x1400 /* System Managment Interrupt */ 68257162Snwhitehorn 69257162Snwhitehorn/* The following are only available on 750/7400: */ 70257162Snwhitehorn#define EXC_THRM 0x1700 /* Thermal Management Interrupt */ 71257162Snwhitehorn 72257162Snwhitehorn/* And these are only on the 603: */ 73257162Snwhitehorn#define EXC_IMISS 0x1000 /* Instruction translation miss */ 74257162Snwhitehorn#define EXC_DLMISS 0x1100 /* Data load translation miss */ 75257162Snwhitehorn#define EXC_DSMISS 0x1200 /* Data store translation miss */ 76257162Snwhitehorn 77279189Snwhitehorn/* Power ISA 2.06+: */ 78279189Snwhitehorn#define EXC_VSX 0x0f40 /* VSX Unavailable */ 79279189Snwhitehorn 80257162Snwhitehorn/* The following are available on 4xx and 85xx */ 81257162Snwhitehorn#define EXC_CRIT 0x0100 /* Critical Input Interrupt */ 82257162Snwhitehorn#define EXC_PIT 0x1000 /* Programmable Interval Timer */ 83257162Snwhitehorn#define EXC_FIT 0x1010 /* Fixed Interval Timer */ 84257162Snwhitehorn#define EXC_WDOG 0x1020 /* Watchdog Timer */ 85257162Snwhitehorn#define EXC_DTMISS 0x1100 /* Data TLB Miss */ 86257162Snwhitehorn#define EXC_ITMISS 0x1200 /* Instruction TLB Miss */ 87257162Snwhitehorn#define EXC_APU 0x1300 /* Auxiliary Processing Unit */ 88281111Sjhibbits#define EXC_DEBUG 0x2f10 /* Debug trap */ 89292071Sjhibbits#define EXC_VECAST_E 0x2f20 /* Altivec Assist (Book-E) */ 90257162Snwhitehorn 91257162Snwhitehorn#define EXC_LAST 0x2f00 /* Last possible exception vector */ 92257162Snwhitehorn 93257162Snwhitehorn#define EXC_AST 0x3000 /* Fake AST vector */ 94257162Snwhitehorn 95257162Snwhitehorn/* Trap was in user mode */ 96257162Snwhitehorn#define EXC_USER 0x10000 97257162Snwhitehorn 98257162Snwhitehorn 99257162Snwhitehorn/* 100257162Snwhitehorn * EXC_ALI sets bits in the DSISR and DAR to provide enough 101257162Snwhitehorn * information to recover from the unaligned access without needing to 102257162Snwhitehorn * parse the offending instruction. This includes certain bits of the 103257162Snwhitehorn * opcode, and information about what registers are used. The opcode 104257162Snwhitehorn * indicator values below come from Appendix F of Book III of "The 105257162Snwhitehorn * PowerPC Architecture". 106257162Snwhitehorn */ 107257162Snwhitehorn 108257162Snwhitehorn#define EXC_ALI_OPCODE_INDICATOR(dsisr) ((dsisr >> 10) & 0x7f) 109257162Snwhitehorn#define EXC_ALI_LFD 0x09 110257162Snwhitehorn#define EXC_ALI_STFD 0x0b 111257162Snwhitehorn 112257162Snwhitehorn/* Macros to extract register information */ 113257162Snwhitehorn#define EXC_ALI_RST(dsisr) ((dsisr >> 5) & 0x1f) /* source or target */ 114257162Snwhitehorn#define EXC_ALI_RA(dsisr) (dsisr & 0x1f) 115257162Snwhitehorn 116257162Snwhitehorn/* 117257162Snwhitehorn * SRR1 bits for program exception traps. These identify what caused 118257162Snwhitehorn * the program exception. See section 6.5.9 of the Power ISA Version 119257162Snwhitehorn * 2.05. 120257162Snwhitehorn */ 121257162Snwhitehorn 122257162Snwhitehorn#define EXC_PGM_FPENABLED (1UL << 20) 123257162Snwhitehorn#define EXC_PGM_ILLEGAL (1UL << 19) 124257162Snwhitehorn#define EXC_PGM_PRIV (1UL << 18) 125257162Snwhitehorn#define EXC_PGM_TRAP (1UL << 17) 126257162Snwhitehorn 127275268Sjhibbits/* DTrace trap opcode. */ 128275268Sjhibbits#define EXC_DTRACE 0x7c810808 129275268Sjhibbits 130277498Snwhitehorn/* Magic pointer to store TOC base and other info for trap handlers on ppc64 */ 131277498Snwhitehorn#define TRAP_GENTRAP 0x1f0 132277334Snwhitehorn#define TRAP_TOCBASE 0x1f8 133277334Snwhitehorn 134257162Snwhitehorn#ifndef LOCORE 135257162Snwhitehornstruct trapframe; 136258259Snwhitehornstruct pcb; 137257162Snwhitehornvoid trap(struct trapframe *); 138258259Snwhitehornint ppc_instr_emulate(struct trapframe *, struct pcb *); 139176770Sraj#endif 14077957Sbenno 141257162Snwhitehorn#endif /* _POWERPC_TRAP_H_ */ 142