| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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 */ |