1 /* $NetBSD: trap.h,v 1.16 2026/01/09 22:54:33 jmcneill Exp $ */ 2 3 /* 4 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 5 * Copyright (C) 1995, 1996 TooLs GmbH. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by TooLs GmbH. 19 * 4. The name of TooLs GmbH may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 28 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #ifndef _POWERPC_TRAP_H_ 35 #define _POWERPC_TRAP_H_ 36 37 #define EXC_RSVD 0x0000 /* Reserved */ 38 #define EXC_RST 0x0100 /* Reset; all but IBM4xx */ 39 #define EXC_MCHK 0x0200 /* Machine Check */ 40 #define EXC_DSI 0x0300 /* Data Storage Interrupt */ 41 #define EXC_ISI 0x0400 /* Instruction Storage Interrupt */ 42 #define EXC_EXI 0x0500 /* External Interrupt */ 43 #define EXC_ALI 0x0600 /* Alignment Interrupt */ 44 #define EXC_PGM 0x0700 /* Program Interrupt */ 45 #define EXC_FPU 0x0800 /* Floating-point Unavailable */ 46 #define EXC_DECR 0x0900 /* Decrementer Interrupt */ 47 #define EXC_SC 0x0c00 /* System Call */ 48 #define EXC_TRC 0x0d00 /* Trace */ 49 #define EXC_FPA 0x0e00 /* Floating-point Assist */ 50 51 /* The following are only available on the 601: */ 52 #define EXC_IOC 0x0a00 /* I/O Controller Interface Exception */ 53 #define EXC_RUNMODETRC 0x2000 /* Run Mode/Trace Exception */ 54 55 /* The following are only available on 7400(G4): */ 56 #define EXC_VEC 0x0f20 /* AltiVec Unavailable */ 57 #define EXC_VECAST 0x1600 /* AltiVec Assist */ 58 59 /* The following are only available on 604/750/7400: */ 60 #define EXC_PERF 0x0f00 /* Performance Monitoring */ 61 #define EXC_BPT 0x1300 /* Instruction Breakpoint */ 62 #define EXC_SMI 0x1400 /* System Management Interrupt */ 63 64 /* The following are only available on 750/7400: */ 65 #define EXC_THRM 0x1700 /* Thermal Management Interrupt */ 66 67 /* The following are only available on IBM Espresso: */ 68 #define EXC_IPI 0x1700 /* Inter-processor Interrupt */ 69 70 /* And these are only on the 603: */ 71 #define EXC_IMISS 0x1000 /* Instruction translation miss */ 72 #define EXC_DLMISS 0x1100 /* Data load translation miss */ 73 #define EXC_DSMISS 0x1200 /* Data store translation miss */ 74 75 /* The following are only available on 405 (and 403?) */ 76 #define EXC_CII 0x0100 /* Critical Input Interrupt */ 77 #define EXC_PIT 0x1000 /* Programmable Interval Timer */ 78 #define EXC_FIT 0x1010 /* Fixed Interval Timer */ 79 #define EXC_WDOG 0x1020 /* Watchdog Timer */ 80 #define EXC_DTMISS 0x1100 /* Data TLB Miss */ 81 #define EXC_ITMISS 0x1200 /* Instruction TLB Miss */ 82 #define EXC_DEBUG 0x2000 /* Debug trap */ 83 84 /* The following are only available on mpc8xx */ 85 #define EXC_SWEMUL 0x1000 /* Software Emulation */ 86 #define EXC_ITMISS_8XX 0x1100 /* Instruction TLB Miss */ 87 #define EXC_DTMISS_8XX 0x1200 /* Data TLB Miss */ 88 #define EXC_ITERROR 0x1300 /* Instruction TLB Error */ 89 #define EXC_DTERROR 0x1400 /* Data TLB Error */ 90 #define EXC_DBREAK 0x1c00 /* data breakpoint */ 91 #define EXC_IBREAK 0x1d00 /* instruction breakpoint */ 92 93 /* The following are only present on 64 bit PPC implementations */ 94 #define EXC_DSEG 0x380 95 #define EXC_ISEG 0x480 96 97 /* The IBM 970x define the VMX assist exection to be 0x1700 */ 98 #define EXC_970_VECAST 0x1700 99 100 #define EXC_LAST 0x2f00 /* Last possible exception vector */ 101 102 #define EXC_AST 0x3000 /* Fake AST vector */ 103 104 /* Trap was in user mode */ 105 #define EXC_USER 0x10000 106 107 /* Exception vector base address when MSR[IP] is set */ 108 #define EXC_HIGHVEC 0xfff00000 109 110 /* 111 * EXC_ALI sets bits in the DSISR and DAR to provide enough 112 * information to recover from the unaligned access without needing to 113 * parse the offending instruction. This includes certain bits of the 114 * opcode, and information about what registers are used. The opcode 115 * indicator values below come from Appendix F of Book III of "The 116 * PowerPC Architecture". 117 */ 118 119 #define EXC_ALI_OPCODE_INDICATOR(dsisr) ((dsisr >> 10) & 0x7f) 120 121 #define EXC_ALI_LWARX_LWZ 0x00 122 #define EXC_ALI_LDARX 0x01 123 #define EXC_ALI_STW 0x02 124 #define EXC_ALI_LHZ 0x04 125 #define EXC_ALI_LHA 0x05 126 #define EXC_ALI_STH 0x06 127 #define EXC_ALI_LMW 0x07 128 #define EXC_ALI_LFS 0x08 129 #define EXC_ALI_LFD 0x09 130 #define EXC_ALI_STFS 0x0a 131 #define EXC_ALI_STFD 0x0b 132 #define EXC_ALI_LD_LDU_LWA 0x0d 133 #define EXC_ALI_STD_STDU 0x0f 134 #define EXC_ALI_LWZU 0x10 135 #define EXC_ALI_STWU 0x12 136 #define EXC_ALI_LHZU 0x14 137 #define EXC_ALI_LHAU 0x15 138 #define EXC_ALI_STHU 0x16 139 #define EXC_ALI_STMW 0x17 140 #define EXC_ALI_LFSU 0x18 141 #define EXC_ALI_LFDU 0x19 142 #define EXC_ALI_STFSU 0x1a 143 #define EXC_ALI_STFDU 0x1b 144 #define EXC_ALI_LDX 0x20 145 #define EXC_ALI_STDX 0x22 146 #define EXC_ALI_LWAX 0x25 147 #define EXC_ALI_LSWX 0x28 148 #define EXC_ALI_LSWI 0x29 149 #define EXC_ALI_STSWX 0x2a 150 #define EXC_ALI_STSWI 0x2b 151 #define EXC_ALI_LDUX 0x30 152 #define EXC_ALI_STDUX 0x32 153 #define EXC_ALI_LWAUX 0x35 154 #define EXC_ALI_STWCX 0x42 /* stwcx. */ 155 #define EXC_ALI_STDCX 0x43 /* stdcx. */ 156 #define EXC_ALI_LWBRX 0x48 157 #define EXC_ALI_STWBRX 0x4a 158 #define EXC_ALI_LHBRX 0x4c 159 #define EXC_ALI_STHBRX 0x4e 160 #define EXC_ALI_ECIWX 0x54 161 #define EXC_ALI_ECOWX 0x56 162 #define EXC_ALI_DCBZ 0x5f 163 #define EXC_ALI_LWZX 0x60 164 #define EXC_ALI_STWX 0x62 165 #define EXC_ALI_LHZX 0x64 166 #define EXC_ALI_LHAX 0x65 167 #define EXC_ALI_STHX 0x66 168 #define EXC_ALI_LSFX 0x68 169 #define EXC_ALI_LDFX 0x69 170 #define EXC_ALI_STFSX 0x6a 171 #define EXC_ALI_STFDX 0x6b 172 #define EXC_ALI_STFIWX 0x6f 173 #define EXC_ALI_LWZUX 0x70 174 #define EXC_ALI_STWUX 0x72 175 #define EXC_ALI_LHZUX 0x74 176 #define EXC_ALI_LHAUX 0x75 177 #define EXC_ALI_STHUX 0x76 178 #define EXC_ALI_LFSUX 0x78 179 #define EXC_ALI_LFDUX 0x79 180 #define EXC_ALI_STFSUX 0x7a 181 #define EXC_ALI_STFDUX 0x7b 182 183 /* Macros to extract register information */ 184 #define EXC_ALI_RST(dsisr) ((dsisr >> 5) & 0x1f) /* source or target */ 185 #define EXC_ALI_RA(dsisr) (dsisr & 0x1f) 186 187 /* Helper defines to classify EXC_ALI_ */ 188 #define DSI_OP_ZERO 0x0001 189 #define DSI_OP_UPDATE 0x0002 190 #define DSI_OP_INDEXED 0x0004 191 #define DSI_OP_ALGEBRAIC 0x0008 192 #define DSI_OP_REVERSED 0x0010 193 194 #endif /* _POWERPC_TRAP_H_ */ 195
Indexes created Sat Feb 21 16:20:20 UTC 2026