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
17extern void (*board_be_init)(void);
18void mips_set_be_handler(int (*handler)(struct pt_regs *reg, int is_fixup));
19
20extern void (*board_nmi_handler_setup)(void);
21extern void (*board_ejtag_handler_setup)(void);
22extern void (*board_bind_eic_interrupt)(int irq, int regset);
23extern void (*board_ebase_setup)(void);
24extern void (*board_cache_error_setup)(void);
25
26extern int register_nmi_notifier(struct notifier_block *nb);
27extern void reserve_exception_space(phys_addr_t addr, unsigned long size);
28extern char except_vec_nmi[];
29
30#define VECTORSPACING 0x100	/* for EI/VI mode */
31
32#define nmi_notifier(fn, pri)						\
33({									\
34	static struct notifier_block fn##_nb = {			\
35		.notifier_call = fn,					\
36		.priority = pri						\
37	};								\
38									\
39	register_nmi_notifier(&fn##_nb);				\
40})
41
42asmlinkage void do_ade(struct pt_regs *regs);
43asmlinkage void do_be(struct pt_regs *regs);
44asmlinkage void do_ov(struct pt_regs *regs);
45asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31);
46asmlinkage void do_bp(struct pt_regs *regs);
47asmlinkage void do_tr(struct pt_regs *regs);
48asmlinkage void do_ri(struct pt_regs *regs);
49asmlinkage void do_cpu(struct pt_regs *regs);
50asmlinkage void do_msa_fpe(struct pt_regs *regs, unsigned int msacsr);
51asmlinkage void do_msa(struct pt_regs *regs);
52asmlinkage void do_mdmx(struct pt_regs *regs);
53asmlinkage void do_watch(struct pt_regs *regs);
54asmlinkage void do_mcheck(struct pt_regs *regs);
55asmlinkage void do_mt(struct pt_regs *regs);
56asmlinkage void do_dsp(struct pt_regs *regs);
57asmlinkage void do_reserved(struct pt_regs *regs);
58asmlinkage void do_ftlb(void);
59asmlinkage void do_gsexc(struct pt_regs *regs, u32 diag1);
60asmlinkage void do_daddi_ov(struct pt_regs *regs);
61asmlinkage void do_page_fault(struct pt_regs *regs,
62	unsigned long write, unsigned long address);
63
64asmlinkage void cache_parity_error(void);
65asmlinkage void ejtag_exception_handler(struct pt_regs *regs);
66asmlinkage void __noreturn nmi_exception_handler(struct pt_regs *regs);
67
68#endif /* _ASM_TRAPS_H */
69