include/asm-x86_64/nmi.h

   1 /*
   2  *  linux/include/asm-i386/nmi.h
   3  */
   4 #ifndef ASM_NMI_H
   5 #define ASM_NMI_H
   6
   7 #include <linux/pm.h>
   8 #include <asm/io.h>
   9
  10 struct pt_regs;
  11
  12 typedef int (*nmi_callback_t)(struct pt_regs * regs, int cpu);
  13
  14 /**
  15  * set_nmi_callback
  16  *
  17  * Set a handler for an NMI. Only one handler may be
  18  * set. Return 1 if the NMI was handled.
  19  */
  20 void set_nmi_callback(nmi_callback_t callback);
  21
  22 /**
  23  * unset_nmi_callback
  24  *
  25  * Remove the handler previously set.
  26  */
  27 void unset_nmi_callback(void);
  28
  29 #ifdef CONFIG_PM
  30
  31 /** Replace the PM callback routine for NMI. */
  32 struct pm_dev * set_nmi_pm_callback(pm_callback callback);
  33
  34 /** Unset the PM callback routine back to the default. */
  35 void unset_nmi_pm_callback(struct pm_dev * dev);
  36
  37 #else
  38
  39 static inline struct pm_dev * set_nmi_pm_callback(pm_callback callback)
  40 {
  41         return 0;
  42 }
  43
  44 static inline void unset_nmi_pm_callback(struct pm_dev * dev)
  45 {
  46 }
  47
  48 #endif /* CONFIG_PM */
  49
  50 extern void default_do_nmi(struct pt_regs *);
  51 extern void die_nmi(char *str, struct pt_regs *regs);
  52
  53 #define get_nmi_reason() inb(0x61)
  54
  55 extern int panic_on_timeout;
  56 extern int unknown_nmi_panic;
  57
  58 extern int check_nmi_watchdog(void);
  59
  60 extern void setup_apic_nmi_watchdog (void);
  61 extern int reserve_lapic_nmi(void);
  62 extern void release_lapic_nmi(void);
  63 extern void disable_timer_nmi_watchdog(void);
  64 extern void enable_timer_nmi_watchdog(void);
  65 extern void nmi_watchdog_tick (struct pt_regs * regs, unsigned reason);
  66
  67 extern void nmi_watchdog_default(void);
  68 extern int setup_nmi_watchdog(char *);
  69
  70 extern unsigned int nmi_watchdog;
  71 #define NMI_DEFAULT     -1
  72 #define NMI_NONE        0
  73 #define NMI_IO_APIC     1
  74 #define NMI_LOCAL_APIC  2
  75 #define NMI_INVALID     3
  76
  77 #endif /* ASM_NMI_H */