/* 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);
void mips_set_be_handler(int (*handler)(struct pt_regs *reg, 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 */