include/asm-i386/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
   9 struct pt_regs;
  10
  11 typedef int (*nmi_callback_t)(struct pt_regs * regs, int cpu);
  12
  13 /**
  14  * set_nmi_callback
  15  *
  16  * Set a handler for an NMI. Only one handler may be
  17  * set. Return 1 if the NMI was handled.
  18  */
  19 void set_nmi_callback(nmi_callback_t callback);
  20
  21 /**
  22  * unset_nmi_callback
  23  *
  24  * Remove the handler previously set.
  25  */
  26 void unset_nmi_callback(void);
  27
  28 extern int avail_to_resrv_perfctr_nmi_bit(unsigned int);
  29 extern int avail_to_resrv_perfctr_nmi(unsigned int);
  30 extern int reserve_perfctr_nmi(unsigned int);
  31 extern void release_perfctr_nmi(unsigned int);
  32 extern int reserve_evntsel_nmi(unsigned int);
  33 extern void release_evntsel_nmi(unsigned int);
  34
  35 extern void setup_apic_nmi_watchdog (void *);
  36 extern int reserve_lapic_nmi(void);
  37 extern void release_lapic_nmi(void);
  38 extern void disable_timer_nmi_watchdog(void);
  39 extern void enable_timer_nmi_watchdog(void);
  40 extern void nmi_watchdog_tick (struct pt_regs * regs, unsigned reason);
  41
  42 extern atomic_t nmi_active;
  43 extern unsigned int nmi_watchdog;
  44 #define NMI_DEFAULT     -1
  45 #define NMI_NONE        0
  46 #define NMI_IO_APIC     1
  47 #define NMI_LOCAL_APIC  2
  48 #define NMI_INVALID     3
  49
  50 #endif /* ASM_NMI_H */