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 #include <asm/irq.h>
   9
  10 #ifdef ARCH_HAS_NMI_WATCHDOG
  11
  12 /**
  13  * do_nmi_callback
  14  *
  15  * Check to see if a callback exists and execute it.  Return 1
  16  * if the handler exists and was handled successfully.
  17  */
  18 int do_nmi_callback(struct pt_regs *regs, int cpu);
  19
  20 extern int nmi_watchdog_enabled;
  21 extern int avail_to_resrv_perfctr_nmi_bit(unsigned int);
  22 extern int avail_to_resrv_perfctr_nmi(unsigned int);
  23 extern int reserve_perfctr_nmi(unsigned int);
  24 extern void release_perfctr_nmi(unsigned int);
  25 extern int reserve_evntsel_nmi(unsigned int);
  26 extern void release_evntsel_nmi(unsigned int);
  27
  28 extern void setup_apic_nmi_watchdog (void *);
  29 extern void stop_apic_nmi_watchdog (void *);
  30 extern void disable_timer_nmi_watchdog(void);
  31 extern void enable_timer_nmi_watchdog(void);
  32 extern int nmi_watchdog_tick (struct pt_regs * regs, unsigned reason);
  33
  34 extern atomic_t nmi_active;
  35 extern unsigned int nmi_watchdog;
  36 #define NMI_DISABLED    -1
  37 #define NMI_NONE        0
  38 #define NMI_IO_APIC     1
  39 #define NMI_LOCAL_APIC  2
  40 #define NMI_INVALID     3
  41 #define NMI_DEFAULT     NMI_DISABLED
  42
  43 struct ctl_table;
  44 struct file;
  45 extern int proc_nmi_enabled(struct ctl_table *, int , struct file *,
  46                         void __user *, size_t *, loff_t *);
  47 extern int unknown_nmi_panic;
  48
  49 void __trigger_all_cpu_backtrace(void);
  50 #define trigger_all_cpu_backtrace() __trigger_all_cpu_backtrace()
  51
  52 #endif
  53
  54 void lapic_watchdog_stop(void);
  55 int lapic_watchdog_init(unsigned nmi_hz);
  56 int lapic_wd_event(unsigned nmi_hz);
  57 unsigned lapic_adjust_nmi_hz(unsigned hz);
  58 int lapic_watchdog_ok(void);
  59 void disable_lapic_nmi_watchdog(void);
  60 void enable_lapic_nmi_watchdog(void);
  61 void stop_nmi(void);
  62 void restart_nmi(void);
  63
  64 #endif /* ASM_NMI_H */