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Diffstat (limited to 'sys/powerpc/include/trap.h')
| -rw-r--r-- | sys/powerpc/include/trap.h | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/sys/powerpc/include/trap.h b/sys/powerpc/include/trap.h new file mode 100644 index 000000000000..c7ee81102121 --- /dev/null +++ b/sys/powerpc/include/trap.h @@ -0,0 +1,160 @@ +/*- + * SPDX-License-Identifier: BSD-4-Clause + * + * 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. + * + * $NetBSD: trap.h,v 1.7 2002/02/22 13:51:40 kleink Exp $ + */ + +#ifndef _POWERPC_TRAP_H_ +#define _POWERPC_TRAP_H_ + +#define EXC_RSVD 0x0000 /* Reserved */ +#define EXC_RST 0x0100 /* Reset; all but IBM4xx */ +#define EXC_MCHK 0x0200 /* Machine Check */ +#define EXC_DSI 0x0300 /* Data Storage Interrupt */ +#define EXC_DSE 0x0380 /* Data Segment Interrupt */ +#define EXC_ISI 0x0400 /* Instruction Storage Interrupt */ +#define EXC_ISE 0x0480 /* Instruction Segment 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 is only available on the 601: */ +#define EXC_RUNMODETRC 0x2000 /* Run Mode/Trace Exception */ + +/* The following are only available on 970(G5): */ +#define EXC_VECAST_G5 0x1700 /* AltiVec Assist */ + +/* The following are only available on 7400(G4): */ +#define EXC_VEC 0x0f20 /* AltiVec Unavailable */ +#define EXC_VECAST_G4 0x1600 /* AltiVec Assist */ + +/* The following are only available on 604/750/7400: */ +#define EXC_PERF 0x0f00 /* Performance Monitoring */ +#define EXC_BPT 0x1300 /* Instruction Breakpoint */ +#define EXC_SMI 0x1400 /* System Managment Interrupt */ + +/* The following are only available on 750/7400: */ +#define EXC_THRM 0x1700 /* Thermal Management 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 */ + +/* Power ISA 2.06+: */ +#define EXC_HDSI 0x0e00 /* Hypervisor Data Storage */ +#define EXC_HISI 0x0e20 /* Hypervisor Instruction Storage */ +#define EXC_HEA 0x0e40 /* Hypervisor Emulation Assistance */ +#define EXC_HMI 0x0e60 /* Hypervisor Maintenance */ +#define EXC_VSX 0x0f40 /* VSX Unavailable */ + +/* Power ISA 2.07+: */ +#define EXC_FAC 0x0f60 /* Facility Unavailable */ +#define EXC_HFAC 0x0f80 /* Hypervisor Facility Unavailable */ + +/* Power ISA 3.0+: */ +#define EXC_HVI 0x0ea0 /* Hypervisor Virtualization */ + +/* The following are available on 4xx and 85xx */ +#define EXC_CRIT 0x0100 /* Critical Input Interrupt */ +#define EXC_PIT 0x1000 /* Programmable Interval Timer */ +#define EXC_FIT 0x1010 /* Fixed Interval Timer */ +#define EXC_WDOG 0x1020 /* Watchdog Timer */ +#define EXC_DTMISS 0x1100 /* Data TLB Miss */ +#define EXC_ITMISS 0x1200 /* Instruction TLB Miss */ +#define EXC_APU 0x1300 /* Auxiliary Processing Unit */ +#define EXC_DEBUG 0x2f10 /* Debug trap */ +#define EXC_VECAST_E 0x2f20 /* Altivec Assist (Book-E) */ +#define EXC_SPFPD 0x2f30 /* SPE Floating-point Data */ +#define EXC_SPFPR 0x2f40 /* SPE Floating-point Round */ + +/* POWER8 */ +#define EXC_SOFT_PATCH 0x1500 /* POWER8 Soft Patch Exception */ + +#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) +#define EXC_ALI_INST_RST(instr) ((instr >> 21) & 0x1f) + +/* + * SRR1 bits for program exception traps. These identify what caused + * the program exception. See section 6.5.9 of the Power ISA Version + * 2.05. + */ + +#define EXC_PGM_FPENABLED (1UL << 20) +#define EXC_PGM_ILLEGAL (1UL << 19) +#define EXC_PGM_PRIV (1UL << 18) +#define EXC_PGM_TRAP (1UL << 17) + +/* DTrace trap opcode. */ +#define EXC_DTRACE 0x7ffff808 + +/* Magic pointer to store TOC base and other info for trap handlers on ppc64 */ +#define TRAP_ENTRY 0x1e8 +#define TRAP_GENTRAP 0x1f0 +#define TRAP_TOCBASE 0x1f8 + +#ifndef LOCORE +struct trapframe; +struct thread; +extern int (*hmi_handler)(struct trapframe *); +void trap(struct trapframe *); +int ppc_instr_emulate(struct trapframe *, struct thread *); +#endif + +#endif /* _POWERPC_TRAP_H_ */ |