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