include/asm-s390/kdebug.h

   1 #ifndef _S390_KDEBUG_H
   2 #define _S390_KDEBUG_H
   3
   4 /*
   5  * Feb 2006 Ported to s390 <grundym@us.ibm.com>
   6  */
   7 #include <linux/notifier.h>
   8
   9 struct pt_regs;
  10
  11 struct die_args {
  12         struct pt_regs *regs;
  13         const char *str;
  14         long err;
  15         int trapnr;
  16         int signr;
  17 };
  18
  19 /* Note - you should never unregister because that can race with NMIs.
  20  * If you really want to do it first unregister - then synchronize_sched
  21  *  - then free.
  22  */
  23 extern int register_die_notifier(struct notifier_block *);
  24 extern int unregister_die_notifier(struct notifier_block *);
  25 extern int register_page_fault_notifier(struct notifier_block *);
  26 extern int unregister_page_fault_notifier(struct notifier_block *);
  27 extern struct atomic_notifier_head s390die_chain;
  28
  29 enum die_val {
  30         DIE_OOPS = 1,
  31         DIE_BPT,
  32         DIE_SSTEP,
  33         DIE_PANIC,
  34         DIE_NMI,
  35         DIE_DIE,
  36         DIE_NMIWATCHDOG,
  37         DIE_KERNELDEBUG,
  38         DIE_TRAP,
  39         DIE_GPF,
  40         DIE_CALL,
  41         DIE_NMI_IPI,
  42         DIE_PAGE_FAULT,
  43 };
  44
  45 static inline int notify_die(enum die_val val, const char *str,
  46                         struct pt_regs *regs, long err, int trap, int sig)
  47 {
  48         struct die_args args = {
  49                 .regs = regs,
  50                 .str = str,
  51                 .err = err,
  52                 .trapnr = trap,
  53                 .signr = sig
  54         };
  55         return atomic_notifier_call_chain(&s390die_chain, val, &args);
  56 }
  57
  58 extern void die(const char *, struct pt_regs *, long);
  59
  60 #endif