LXR linux/arch/mips/include/asm/traps.h

   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);
  18extern int (*board_be_handler)(struct pt_regs *regs, 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
  42#endif /* _ASM_TRAPS_H */
  43