1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 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 * $NetBSD: trap.h,v 1.7 2002/02/22 13:51:40 kleink Exp $ 34 */ 35 36 #ifndef _POWERPC_TRAP_H_ 37 #define _POWERPC_TRAP_H_ 38 39 #define EXC_RSVD 0x0000 /* Reserved */ 40 #define EXC_RST 0x0100 /* Reset; all but IBM4xx */ 41 #define EXC_MCHK 0x0200 /* Machine Check */ 42 #define EXC_DSI 0x0300 /* Data Storage Interrupt */ 43 #define EXC_DSE 0x0380 /* Data Segment Interrupt */ 44 #define EXC_ISI 0x0400 /* Instruction Storage Interrupt */ 45 #define EXC_ISE 0x0480 /* Instruction Segment Interrupt */ 46 #define EXC_EXI 0x0500 /* External Interrupt */ 47 #define EXC_ALI 0x0600 /* Alignment Interrupt */ 48 #define EXC_PGM 0x0700 /* Program Interrupt */ 49 #define EXC_FPU 0x0800 /* Floating-point Unavailable */ 50 #define EXC_DECR 0x0900 /* Decrementer Interrupt */ 51 #define EXC_SC 0x0c00 /* System Call */ 52 #define EXC_TRC 0x0d00 /* Trace */ 53 #define EXC_FPA 0x0e00 /* Floating-point Assist */ 54 55 /* The following is only available on the 601: */ 56 #define EXC_RUNMODETRC 0x2000 /* Run Mode/Trace Exception */ 57 58 /* The following are only available on 970(G5): */ 59 #define EXC_VECAST_G5 0x1700 /* AltiVec Assist */ 60 61 /* The following are only available on 7400(G4): */ 62 #define EXC_VEC 0x0f20 /* AltiVec Unavailable */ 63 #define EXC_VECAST_G4 0x1600 /* AltiVec Assist */ 64 65 /* The following are only available on 604/750/7400: */ 66 #define EXC_PERF 0x0f00 /* Performance Monitoring */ 67 #define EXC_BPT 0x1300 /* Instruction Breakpoint */ 68 #define EXC_SMI 0x1400 /* System Managment Interrupt */ 69 70 /* The following are only available on 750/7400: */ 71 #define EXC_THRM 0x1700 /* Thermal Management Interrupt */ 72 73 /* And these are only on the 603: */ 74 #define EXC_IMISS 0x1000 /* Instruction translation miss */ 75 #define EXC_DLMISS 0x1100 /* Data load translation miss */ 76 #define EXC_DSMISS 0x1200 /* Data store translation miss */ 77 78 /* Power ISA 2.06+: */ 79 #define EXC_HDSI 0x0e00 /* Hypervisor Data Storage */ 80 #define EXC_HISI 0x0e20 /* Hypervisor Instruction Storage */ 81 #define EXC_HEA 0x0e40 /* Hypervisor Emulation Assistance */ 82 #define EXC_HMI 0x0e60 /* Hypervisor Maintenance */ 83 #define EXC_VSX 0x0f40 /* VSX Unavailable */ 84 85 /* Power ISA 2.07+: */ 86 #define EXC_FAC 0x0f60 /* Facility Unavailable */ 87 #define EXC_HFAC 0x0f80 /* Hypervisor Facility Unavailable */ 88 89 /* Power ISA 3.0+: */ 90 #define EXC_HVI 0x0ea0 /* Hypervisor Virtualization */ 91 92 /* The following are available on 4xx and 85xx */ 93 #define EXC_CRIT 0x0100 /* Critical Input Interrupt */ 94 #define EXC_PIT 0x1000 /* Programmable Interval Timer */ 95 #define EXC_FIT 0x1010 /* Fixed Interval Timer */ 96 #define EXC_WDOG 0x1020 /* Watchdog Timer */ 97 #define EXC_DTMISS 0x1100 /* Data TLB Miss */ 98 #define EXC_ITMISS 0x1200 /* Instruction TLB Miss */ 99 #define EXC_APU 0x1300 /* Auxiliary Processing Unit */ 100 #define EXC_DEBUG 0x2f10 /* Debug trap */ 101 #define EXC_VECAST_E 0x2f20 /* Altivec Assist (Book-E) */ 102 #define EXC_SPFPD 0x2f30 /* SPE Floating-point Data */ 103 #define EXC_SPFPR 0x2f40 /* SPE Floating-point Round */ 104 105 /* POWER8 */ 106 #define EXC_SOFT_PATCH 0x1500 /* POWER8 Soft Patch Exception */ 107 108 #define EXC_LAST 0x2f00 /* Last possible exception vector */ 109 110 #define EXC_AST 0x3000 /* Fake AST vector */ 111 112 /* Trap was in user mode */ 113 #define EXC_USER 0x10000 114 115 /* 116 * EXC_ALI sets bits in the DSISR and DAR to provide enough 117 * information to recover from the unaligned access without needing to 118 * parse the offending instruction. This includes certain bits of the 119 * opcode, and information about what registers are used. The opcode 120 * indicator values below come from Appendix F of Book III of "The 121 * PowerPC Architecture". 122 */ 123 124 #define EXC_ALI_OPCODE_INDICATOR(dsisr) ((dsisr >> 10) & 0x7f) 125 #define EXC_ALI_LFD 0x09 126 #define EXC_ALI_STFD 0x0b 127 128 /* Macros to extract register information */ 129 #define EXC_ALI_RST(dsisr) ((dsisr >> 5) & 0x1f) /* source or target */ 130 #define EXC_ALI_RA(dsisr) (dsisr & 0x1f) 131 #define EXC_ALI_INST_RST(instr) ((instr >> 21) & 0x1f) 132 133 /* 134 * SRR1 bits for program exception traps. These identify what caused 135 * the program exception. See section 6.5.9 of the Power ISA Version 136 * 2.05. 137 */ 138 139 #define EXC_PGM_FPENABLED (1UL << 20) 140 #define EXC_PGM_ILLEGAL (1UL << 19) 141 #define EXC_PGM_PRIV (1UL << 18) 142 #define EXC_PGM_TRAP (1UL << 17) 143 144 /* DTrace trap opcode. */ 145 #define EXC_DTRACE 0x7ffff808 146 147 /* Magic pointer to store TOC base and other info for trap handlers on ppc64 */ 148 #define TRAP_ENTRY 0x1e8 149 #define TRAP_GENTRAP 0x1f0 150 #define TRAP_TOCBASE 0x1f8 151 152 #ifndef LOCORE 153 struct trapframe; 154 struct thread; 155 extern int (*hmi_handler)(struct trapframe *); 156 void trap(struct trapframe *); 157 int ppc_instr_emulate(struct trapframe *, struct thread *); 158 #endif 159 160 #endif /* _POWERPC_TRAP_H_ */ 161