1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * Trap handling definitions.
4 *
5 * Copyright (C) 2002, 2003 Maciej W. Rozycki
6 */
7 #ifndef _ASM_TRAPS_H
8 #define _ASM_TRAPS_H
9
10 /*
11 * Possible status responses for a board_be_handler backend.
12 */
13 #define MIPS_BE_DISCARD 0 /* return with no action */
14 #define MIPS_BE_FIXUP 1 /* return to the fixup code */
15 #define MIPS_BE_FATAL 2 /* treat as an unrecoverable error */
16
17 extern void (*board_be_init)(void);
18 extern int (*board_be_handler)(struct pt_regs *regs, int is_fixup);
19
20 extern void (*board_nmi_handler_setup)(void);
21 extern void (*board_ejtag_handler_setup)(void);
22 extern void (*board_bind_eic_interrupt)(int irq, int regset);
23 extern void (*board_ebase_setup)(void);
24 extern void (*board_cache_error_setup)(void);
25
26 extern int register_nmi_notifier(struct notifier_block *nb);
27
28 #define nmi_notifier(fn, pri) \
29 ({ \
30 static struct notifier_block fn##_nb = { \
31 .notifier_call = fn, \
32 .priority = pri \
33 }; \
34 \
35 register_nmi_notifier(&fn##_nb); \
36 })
37
38 #endif /* _ASM_TRAPS_H */