1 /* MN10300 Microcontroller core exceptions 2 * 3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. 4 * Written by David Howells (dhowells@redhat.com) 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public Licence 8 * as published by the Free Software Foundation; either version 9 * 2 of the Licence, or (at your option) any later version. 10 */ 11 #ifndef _ASM_EXCEPTIONS_H 12 #define _ASM_EXCEPTIONS_H 13 14 #include <linux/linkage.h> 15 16 /* 17 * define the breakpoint instruction opcode to use 18 * - note that the JTAG unit steals 0xFF, so you can't use JTAG and GDBSTUB at 19 * the same time. 20 */ 21 #define GDBSTUB_BKPT 0xFF 22 23 #ifndef __ASSEMBLY__ 24 25 /* 26 * enumeration of exception codes (as extracted from TBR MSW) 27 */ 28 enum exception_code { 29 EXCEP_RESET = 0x000000, /* reset */ 30 31 /* MMU exceptions */ 32 EXCEP_ITLBMISS = 0x000100, /* instruction TLB miss */ 33 EXCEP_DTLBMISS = 0x000108, /* data TLB miss */ 34 EXCEP_IAERROR = 0x000110, /* instruction address */ 35 EXCEP_DAERROR = 0x000118, /* data address */ 36 37 /* system exceptions */ 38 EXCEP_TRAP = 0x000128, /* program interrupt (PI instruction) */ 39 EXCEP_ISTEP = 0x000130, /* single step */ 40 EXCEP_IBREAK = 0x000150, /* instruction breakpoint */ 41 EXCEP_OBREAK = 0x000158, /* operand breakpoint */ 42 EXCEP_PRIVINS = 0x000160, /* privileged instruction execution */ 43 EXCEP_UNIMPINS = 0x000168, /* unimplemented instruction execution */ 44 EXCEP_UNIMPEXINS = 0x000170, /* unimplemented extended instruction execution */ 45 EXCEP_MEMERR = 0x000178, /* illegal memory access */ 46 EXCEP_MISALIGN = 0x000180, /* misalignment */ 47 EXCEP_BUSERROR = 0x000188, /* bus error */ 48 EXCEP_ILLINSACC = 0x000190, /* illegal instruction access */ 49 EXCEP_ILLDATACC = 0x000198, /* illegal data access */ 50 EXCEP_IOINSACC = 0x0001a0, /* I/O space instruction access */ 51 EXCEP_PRIVINSACC = 0x0001a8, /* privileged space instruction access */ 52 EXCEP_PRIVDATACC = 0x0001b0, /* privileged space data access */ 53 EXCEP_DATINSACC = 0x0001b8, /* data space instruction access */ 54 EXCEP_DOUBLE_FAULT = 0x000200, /* double fault */ 55 56 /* FPU exceptions */ 57 EXCEP_FPU_DISABLED = 0x0001c0, /* FPU disabled */ 58 EXCEP_FPU_UNIMPINS = 0x0001c8, /* FPU unimplemented operation */ 59 EXCEP_FPU_OPERATION = 0x0001d0, /* FPU operation */ 60 61 /* interrupts */ 62 EXCEP_WDT = 0x000240, /* watchdog timer overflow */ 63 EXCEP_NMI = 0x000248, /* non-maskable interrupt */ 64 EXCEP_IRQ_LEVEL0 = 0x000280, /* level 0 maskable interrupt */ 65 EXCEP_IRQ_LEVEL1 = 0x000288, /* level 1 maskable interrupt */ 66 EXCEP_IRQ_LEVEL2 = 0x000290, /* level 2 maskable interrupt */ 67 EXCEP_IRQ_LEVEL3 = 0x000298, /* level 3 maskable interrupt */ 68 EXCEP_IRQ_LEVEL4 = 0x0002a0, /* level 4 maskable interrupt */ 69 EXCEP_IRQ_LEVEL5 = 0x0002a8, /* level 5 maskable interrupt */ 70 EXCEP_IRQ_LEVEL6 = 0x0002b0, /* level 6 maskable interrupt */ 71 72 /* system calls */ 73 EXCEP_SYSCALL0 = 0x000300, /* system call 0 */ 74 EXCEP_SYSCALL1 = 0x000308, /* system call 1 */ 75 EXCEP_SYSCALL2 = 0x000310, /* system call 2 */ 76 EXCEP_SYSCALL3 = 0x000318, /* system call 3 */ 77 EXCEP_SYSCALL4 = 0x000320, /* system call 4 */ 78 EXCEP_SYSCALL5 = 0x000328, /* system call 5 */ 79 EXCEP_SYSCALL6 = 0x000330, /* system call 6 */ 80 EXCEP_SYSCALL7 = 0x000338, /* system call 7 */ 81 EXCEP_SYSCALL8 = 0x000340, /* system call 8 */ 82 EXCEP_SYSCALL9 = 0x000348, /* system call 9 */ 83 EXCEP_SYSCALL10 = 0x000350, /* system call 10 */ 84 EXCEP_SYSCALL11 = 0x000358, /* system call 11 */ 85 EXCEP_SYSCALL12 = 0x000360, /* system call 12 */ 86 EXCEP_SYSCALL13 = 0x000368, /* system call 13 */ 87 EXCEP_SYSCALL14 = 0x000370, /* system call 14 */ 88 EXCEP_SYSCALL15 = 0x000378, /* system call 15 */ 89 }; 90 91 extern void __set_intr_stub(enum exception_code code, void *handler); 92 extern void set_intr_stub(enum exception_code code, void *handler); 93 94 struct pt_regs; 95 96 extern asmlinkage void __common_exception(void); 97 extern asmlinkage void itlb_miss(void); 98 extern asmlinkage void dtlb_miss(void); 99 extern asmlinkage void itlb_aerror(void); 100 extern asmlinkage void dtlb_aerror(void); 101 extern asmlinkage void raw_bus_error(void); 102 extern asmlinkage void double_fault(void); 103 extern asmlinkage int system_call(struct pt_regs *); 104 extern asmlinkage void nmi(struct pt_regs *, enum exception_code); 105 extern asmlinkage void uninitialised_exception(struct pt_regs *, 106 enum exception_code); 107 extern asmlinkage void irq_handler(void); 108 extern asmlinkage void profile_handler(void); 109 extern asmlinkage void nmi_handler(void); 110 extern asmlinkage void misalignment(struct pt_regs *, enum exception_code); 111 112 extern void die(const char *, struct pt_regs *, enum exception_code) 113 ATTRIB_NORET; 114 115 extern int die_if_no_fixup(const char *, struct pt_regs *, enum exception_code); 116 117 #define NUM2EXCEP_IRQ_LEVEL(num) (EXCEP_IRQ_LEVEL0 + (num) * 8) 118 119 #endif /* __ASSEMBLY__ */ 120 121 #endif /* _ASM_EXCEPTIONS_H */ 122