arch/mips/include/asm/traps.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *	Trap handling definitions.
 *
 *	Copyright (C) 2002, 2003  Maciej W. Rozycki
 */
#ifndef _ASM_TRAPS_H
#define _ASM_TRAPS_H

/*
 * Possible status responses for a board_be_handler backend.
 */
#define MIPS_BE_DISCARD 0		/* return with no action */
#define MIPS_BE_FIXUP	1		/* return to the fixup code */
#define MIPS_BE_FATAL	2		/* treat as an unrecoverable error */

extern void (*board_be_init)(void);
extern int (*board_be_handler)(struct pt_regs *regs, int is_fixup);

extern void (*board_nmi_handler_setup)(void);
extern void (*board_ejtag_handler_setup)(void);
extern void (*board_bind_eic_interrupt)(int irq, int regset);
extern void (*board_ebase_setup)(void);
extern void (*board_cache_error_setup)(void);

extern int register_nmi_notifier(struct notifier_block *nb);
extern void reserve_exception_space(phys_addr_t addr, unsigned long size);
extern char except_vec_nmi[];

#define VECTORSPACING 0x100	/* for EI/VI mode */

#define nmi_notifier(fn, pri)						\
({									\
	static struct notifier_block fn##_nb = {			\
		.notifier_call = fn,					\
		.priority = pri						\
	};								\
									\
	register_nmi_notifier(&fn##_nb);				\
})

#endif /* _ASM_TRAPS_H */