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/*-
* Copyright (c) 2001 Jake Burkholder.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR OR CONTRIBUTORS 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.
*
* $FreeBSD$
*/
#ifndef _MACHINE_TRAP_H_
#define _MACHINE_TRAP_H_
#ifdef _KERNEL
#define T_RESERVED 0
#define T_INSTRUCTION_EXCEPTION 1
#define T_INSTRUCTION_ERROR 2
#define T_INSTRUCTION_PROTECTION 3
#define T_ILLTRAP_INSTRUCTION 4
#define T_ILLEGAL_INSTRUCTION 5
#define T_PRIVILEGED_OPCODE 6
#define T_FP_DISABLED 7
#define T_FP_EXCEPTION_IEEE_754 8
#define T_FP_EXCEPTION_OTHER 9
#define T_TAG_OVERFLOW 10
#define T_DIVISION_BY_ZERO 11
#define T_DATA_EXCEPTION 12
#define T_DATA_ERROR 13
#define T_DATA_PROTECTION 14
#define T_MEM_ADDRESS_NOT_ALIGNED 15
#define T_ALIGNMENT 15
#define T_PRIVILEGED_ACTION 16
#define T_ASYNC_DATA_ERROR 17
#define T_TRAP_INSTRUCTION_16 18
#define T_TRAP_INSTRUCTION_17 19
#define T_TRAP_INSTRUCTION_18 20
#define T_TRAP_INSTRUCTION_19 21
#define T_TRAP_INSTRUCTION_20 22
#define T_TRAP_INSTRUCTION_21 23
#define T_TRAP_INSTRUCTION_22 24
#define T_TRAP_INSTRUCTION_23 25
#define T_TRAP_INSTRUCTION_24 26
#define T_TRAP_INSTRUCTION_25 27
#define T_TRAP_INSTRUCTION_26 28
#define T_TRAP_INSTRUCTION_27 29
#define T_TRAP_INSTRUCTION_28 30
#define T_TRAP_INSTRUCTION_29 31
#define T_TRAP_INSTRUCTION_30 32
#define T_TRAP_INSTRUCTION_31 33
#define T_INSTRUCTION_MISS 34
#define T_DATA_MISS 35
#define T_INTERRUPT 36
#define T_PA_WATCHPOINT 37
#define T_VA_WATCHPOINT 38
#define T_CORRECTED_ECC_ERROR 39
#define T_SPILL 40
#define T_FILL 41
#define T_FILL_RET 42
#define T_BREAKPOINT 43
#define T_CLEAN_WINDOW 44
#define T_RANGE_CHECK 45
#define T_FIX_ALIGNMENT 46
#define T_INTEGER_OVERFLOW 47
#define T_SYSCALL 48
#define T_RSTRWP_PHYS 49
#define T_RSTRWP_VIRT 50
#define T_KSTACK_FAULT 51
#define T_RESUMABLE_ERROR 52
#define T_NONRESUMABLE_ERROR 53
#define T_MAX (T_NONRESUMABLE_ERROR + 1)
#define T_KERNEL 64
#define TRAP_MASK ((1<<6)-1)
#define TRAP_CTX_SHIFT 8
/*
* These defines are used by the TL1 tlb miss handlers to calculate
* the pc to jump to in the case the entry was not found in the TSB.
*/
#define WTRAP_ALIGN 0x7f /* window handlers are 128 byte align */
#define WTRAP_FAULTOFF 124 /* last instruction in handler */
/* use the following defines to determine if trap was a fill or a spill */
#define WTRAP_TTMASK 0x180
#define WTRAP_TYPE 0x080
#define TT_INSTRUCTION_EXCEPTION 0x8
#define TT_INSTRUCTION_MISS 0x9
#define TT_ILLEGAL_INSTRUCTION 0x10
#define TT_PRIVILEGED_OPCODE 0x11
#define TT_FP_EXCEPTION_IEEE_754 0x21
#define TT_FP_EXCEPTION_OTHER 0x22
#define TT_TAG_OVERFLOW 0x23
#define TT_DIVISION_BY_ZERO 0x28
#define TT_DATA_EXCEPTION 0x30
#define TT_DATA_MISS 0x31
#define TT_ALIGNNMENT 0x34
#define TT_DATA_PROTECTION 0x6c
#define TT_ALIGNMENT 0x6c
#define TT_BREAKPOINT 0x76
#define PTL1_BAD_DEBUG 0
#define PTL1_BAD_WTRAP 1
#define PTL1_BAD_KMISS 2
#define PTL1_BAD_KPROT_FAULT 3
#define PTL1_BAD_ISM 4
#define PTL1_BAD_MMUTRAP 5
#define PTL1_BAD_TRAP 6
#define PTL1_BAD_NOT_WTRAP 7
#if 0
#define PTL1_BAD_FPTRAP 7
#endif
#define PTL1_BAD_INTR_REQ 8
#define PTL1_BAD_TRACE_PTR 9
#define PTL1_BAD_STACK 10
#define PTL1_BAD_DTRACE_FLAGS 11
#define PTL1_BAD_CTX_STEAL 12
#define PTL1_BAD_ECC 13
#define PTL1_BAD_HCALL 14
#define PTL1_BAD_GL 15
#ifndef LOCORE
extern const char *trap_msg[];
extern void trap_init(void);
#endif
#endif
#endif /* !_MACHINE_TRAP_H_ */
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