LXR linux/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 */
  18int do_nmi_callback(struct pt_regs *regs, int cpu);
  19
  20extern int nmi_watchdog_enabled;
  21extern int avail_to_resrv_perfctr_nmi_bit(unsigned int);
  22extern int avail_to_resrv_perfctr_nmi(unsigned int);
  23extern int reserve_perfctr_nmi(unsigned int);
  24extern void release_perfctr_nmi(unsigned int);
  25extern int reserve_evntsel_nmi(unsigned int);
  26extern void release_evntsel_nmi(unsigned int);
  27
  28extern void setup_apic_nmi_watchdog (void *);
  29extern void stop_apic_nmi_watchdog (void *);
  30extern void disable_timer_nmi_watchdog(void);
  31extern void enable_timer_nmi_watchdog(void);
  32extern int nmi_watchdog_tick (struct pt_regs * regs, unsigned reason);
  33
  34extern atomic_t nmi_active;
  35extern unsigned int nmi_watchdog;
  36#define NMI_DEFAULT     -1
  37#define NMI_NONE        0
  38#define NMI_IO_APIC     1
  39#define NMI_LOCAL_APIC  2
  40#define NMI_INVALID     3
  41
  42struct ctl_table;
  43struct file;
  44extern int proc_nmi_enabled(struct ctl_table *, int , struct file *,
  45                        void __user *, size_t *, loff_t *);
  46extern int unknown_nmi_panic;
  47
  48void __trigger_all_cpu_backtrace(void);
  49#define trigger_all_cpu_backtrace() __trigger_all_cpu_backtrace()
  50
  51#endif
  52
  53void lapic_watchdog_stop(void);
  54int lapic_watchdog_init(unsigned nmi_hz);
  55int lapic_wd_event(unsigned nmi_hz);
  56unsigned lapic_adjust_nmi_hz(unsigned hz);
  57int lapic_watchdog_ok(void);
  58void disable_lapic_nmi_watchdog(void);
  59void enable_lapic_nmi_watchdog(void);
  60
  61#endif /* ASM_NMI_H */
  62