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
  17 extern void (*board_be_init)(void);
  18 void mips_set_be_handler(int (*handler)(struct pt_regs *reg, int is_fixup));
  19
  20 extern void (*board_nmi_handler_setup)(void);
  21 extern void (*board_ejtag_handler_setup)(void);
  22 extern void (*board_bind_eic_interrupt)(int irq, int regset);
  23 extern void (*board_ebase_setup)(void);
  24 extern void (*board_cache_error_setup)(void);
  25
  26 extern int register_nmi_notifier(struct notifier_block *nb);
  27 extern void reserve_exception_space(phys_addr_t addr, unsigned long size);
  28 extern 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 asmlinkage void do_ade(struct pt_regs *regs);
  43 asmlinkage void do_be(struct pt_regs *regs);
  44 asmlinkage void do_ov(struct pt_regs *regs);
  45 asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31);
  46 asmlinkage void do_bp(struct pt_regs *regs);
  47 asmlinkage void do_tr(struct pt_regs *regs);
  48 asmlinkage void do_ri(struct pt_regs *regs);
  49 asmlinkage void do_cpu(struct pt_regs *regs);
  50 asmlinkage void do_msa_fpe(struct pt_regs *regs, unsigned int msacsr);
  51 asmlinkage void do_msa(struct pt_regs *regs);
  52 asmlinkage void do_mdmx(struct pt_regs *regs);
  53 asmlinkage void do_watch(struct pt_regs *regs);
  54 asmlinkage void do_mcheck(struct pt_regs *regs);
  55 asmlinkage void do_mt(struct pt_regs *regs);
  56 asmlinkage void do_dsp(struct pt_regs *regs);
  57 asmlinkage void do_reserved(struct pt_regs *regs);
  58 asmlinkage void do_ftlb(void);
  59 asmlinkage void do_gsexc(struct pt_regs *regs, u32 diag1);
  60 asmlinkage void do_daddi_ov(struct pt_regs *regs);
  61 asmlinkage void do_page_fault(struct pt_regs *regs,
  62         unsigned long write, unsigned long address);
  63
  64 asmlinkage void cache_parity_error(void);
  65 asmlinkage void ejtag_exception_handler(struct pt_regs *regs);
  66 asmlinkage void __noreturn nmi_exception_handler(struct pt_regs *regs);
  67
  68 #endif /* _ASM_TRAPS_H */