1 /* MN10300 Microcontroller core exceptions
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
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.
11 #ifndef _ASM_EXCEPTIONS_H
12 #define _ASM_EXCEPTIONS_H
14 #include <linux/linkage.h>
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
21 #define GDBSTUB_BKPT 0xFF
26 * enumeration of exception codes (as extracted from TBR MSW)
29 EXCEP_RESET = 0x000000, /* reset */
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 */
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 */
57 EXCEP_FPU_DISABLED = 0x0001c0, /* FPU disabled */
58 EXCEP_FPU_UNIMPINS = 0x0001c8, /* FPU unimplemented operation */
59 EXCEP_FPU_OPERATION = 0x0001d0, /* FPU operation */
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 */
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 */
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);
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);
114 extern void die(const char *, struct pt_regs *, enum exception_code)
117 extern int die_if_no_fixup(const char *, struct pt_regs *, enum exception_code);
119 #endif /* __ASSEMBLY__ */
121 #endif /* _ASM_EXCEPTIONS_H */