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b920de1b DH |
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 we want to avoid that if we can | |
19 | * (can use 0xF7) | |
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 | extern void set_jtag_stub(enum exception_code code, void *handler); | |
94 | ||
95 | struct pt_regs; | |
96 | ||
97 | extern asmlinkage void __common_exception(void); | |
98 | extern asmlinkage void itlb_miss(void); | |
99 | extern asmlinkage void dtlb_miss(void); | |
100 | extern asmlinkage void itlb_aerror(void); | |
101 | extern asmlinkage void dtlb_aerror(void); | |
102 | extern asmlinkage void raw_bus_error(void); | |
103 | extern asmlinkage void double_fault(void); | |
104 | extern asmlinkage int system_call(struct pt_regs *); | |
105 | extern asmlinkage void fpu_exception(struct pt_regs *, enum exception_code); | |
106 | extern asmlinkage void nmi(struct pt_regs *, enum exception_code); | |
107 | extern asmlinkage void uninitialised_exception(struct pt_regs *, | |
108 | enum exception_code); | |
109 | extern asmlinkage void irq_handler(void); | |
110 | extern asmlinkage void profile_handler(void); | |
111 | extern asmlinkage void nmi_handler(void); | |
112 | extern asmlinkage void misalignment(struct pt_regs *, enum exception_code); | |
113 | ||
114 | extern void die(const char *, struct pt_regs *, enum exception_code) | |
115 | ATTRIB_NORET; | |
116 | ||
117 | extern int die_if_no_fixup(const char *, struct pt_regs *, enum exception_code); | |
118 | ||
119 | #endif /* __ASSEMBLY__ */ | |
120 | ||
121 | #endif /* _ASM_EXCEPTIONS_H */ |