blob: b04333ea6f31e9bd338b9842d1afeec1ea9f7ba4 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * linux/include/asm-i386/nmi.h
3 */
4#ifndef ASM_NMI_H
5#define ASM_NMI_H
6
7#include <linux/pm.h>
Andrew Mortonbb81a092006-12-07 02:14:01 +01008#include <asm/irq.h>
9
10#ifdef ARCH_HAS_NMI_WATCHDOG
Don Zickus3e4ff112006-06-26 13:57:01 +020011
Don Zickus3e4ff112006-06-26 13:57:01 +020012/**
Don Zickus2fbe7b22006-09-26 10:52:27 +020013 * do_nmi_callback
Linus Torvalds1da177e2005-04-16 15:20:36 -070014 *
Don Zickus2fbe7b22006-09-26 10:52:27 +020015 * Check to see if a callback exists and execute it. Return 1
16 * if the handler exists and was handled successfully.
Linus Torvalds1da177e2005-04-16 15:20:36 -070017 */
Don Zickus2fbe7b22006-09-26 10:52:27 +020018int do_nmi_callback(struct pt_regs *regs, int cpu);
Don Zickus3e4ff112006-06-26 13:57:01 +020019
Don Zickus407984f2006-09-26 10:52:27 +020020extern int nmi_watchdog_enabled;
Don Zickus828f0af2006-09-26 10:52:26 +020021extern 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
Don Zickusb7471c62006-09-26 10:52:26 +020028extern void setup_apic_nmi_watchdog (void *);
Shaohua Li4038f902006-09-26 10:52:27 +020029extern void stop_apic_nmi_watchdog (void *);
Don Zickus3e4ff112006-06-26 13:57:01 +020030extern void disable_timer_nmi_watchdog(void);
31extern void enable_timer_nmi_watchdog(void);
Don Zickus3adbbcc2006-09-26 10:52:26 +020032extern int nmi_watchdog_tick (struct pt_regs * regs, unsigned reason);
Don Zickus3e4ff112006-06-26 13:57:01 +020033
Don Zickusb7471c62006-09-26 10:52:26 +020034extern atomic_t nmi_active;
Don Zickus3e4ff112006-06-26 13:57:01 +020035extern unsigned int nmi_watchdog;
Linus Torvalds8ce5e3e2007-03-14 17:50:48 -070036#define NMI_DEFAULT -1
Don Zickus3e4ff112006-06-26 13:57:01 +020037#define NMI_NONE 0
38#define NMI_IO_APIC 1
39#define NMI_LOCAL_APIC 2
40#define NMI_INVALID 3
41
Andi Kleen29cbc782006-09-30 01:47:55 +020042struct 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
Andrew Mortonbb81a092006-12-07 02:14:01 +010048void __trigger_all_cpu_backtrace(void);
49#define trigger_all_cpu_backtrace() __trigger_all_cpu_backtrace()
50
51#endif
52
Linus Torvalds1da177e2005-04-16 15:20:36 -070053#endif /* ASM_NMI_H */