80 lines
2.2 KiB
C
80 lines
2.2 KiB
C
|
#ifndef _ASM_X86_NMI_H
|
||
|
|
#define _ASM_X86_NMI_H
|
||
|
|
|
||
|
|
#include <linux/pm.h>
|
||
|
|
#include <asm/irq.h>
|
||
|
|
#include <asm/io.h>
|
||
|
|
|
||
|
|
#ifdef ARCH_HAS_NMI_WATCHDOG
|
||
|
|
|
||
|
|
/**
|
||
|
|
* do_nmi_callback
|
||
|
|
*
|
||
|
|
* Check to see if a callback exists and execute it. Return 1
|
||
|
|
* if the handler exists and was handled successfully.
|
||
|
|
*/
|
||
|
|
int do_nmi_callback(struct pt_regs *regs, int cpu);
|
||
|
|
|
||
|
|
extern void die_nmi(char *str, struct pt_regs *regs, int do_panic);
|
||
|
|
extern int check_nmi_watchdog(void);
|
||
|
|
extern int nmi_watchdog_enabled;
|
||
|
|
extern int avail_to_resrv_perfctr_nmi_bit(unsigned int);
|
||
|
|
extern int avail_to_resrv_perfctr_nmi(unsigned int);
|
||
|
|
extern int reserve_perfctr_nmi(unsigned int);
|
||
|
|
extern void release_perfctr_nmi(unsigned int);
|
||
|
|
extern int reserve_evntsel_nmi(unsigned int);
|
||
|
|
extern void release_evntsel_nmi(unsigned int);
|
||
|
|
|
||
|
|
extern void setup_apic_nmi_watchdog(void *);
|
||
|
|
extern void stop_apic_nmi_watchdog(void *);
|
||
|
|
extern void disable_timer_nmi_watchdog(void);
|
||
|
|
extern void enable_timer_nmi_watchdog(void);
|
||
|
|
extern int nmi_watchdog_tick(struct pt_regs *regs, unsigned reason);
|
||
|
|
extern void cpu_nmi_set_wd_enabled(void);
|
||
|
|
|
||
|
|
extern atomic_t nmi_active;
|
||
|
|
extern unsigned int nmi_watchdog;
|
||
|
|
#define NMI_NONE 0
|
||
|
|
#define NMI_IO_APIC 1
|
||
|
|
#define NMI_LOCAL_APIC 2
|
||
|
|
#define NMI_INVALID 3
|
||
|
|
|
||
|
|
struct ctl_table;
|
||
|
|
extern int proc_nmi_enabled(struct ctl_table *, int ,
|
||
|
|
void __user *, size_t *, loff_t *);
|
||
|
|
extern int unknown_nmi_panic;
|
||
|
|
|
||
|
|
void arch_trigger_all_cpu_backtrace(void);
|
||
|
|
#define arch_trigger_all_cpu_backtrace arch_trigger_all_cpu_backtrace
|
||
|
|
|
||
|
|
static inline void localise_nmi_watchdog(void)
|
||
|
|
{
|
||
|
|
if (nmi_watchdog == NMI_IO_APIC)
|
||
|
|
nmi_watchdog = NMI_LOCAL_APIC;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* check if nmi_watchdog is active (ie was specified at boot) */
|
||
|
|
static inline int nmi_watchdog_active(void)
|
||
|
|
{
|
||
|
|
/*
|
||
|
|
* actually it should be:
|
||
|
|
* return (nmi_watchdog == NMI_LOCAL_APIC ||
|
||
|
|
* nmi_watchdog == NMI_IO_APIC)
|
||
|
|
* but since they are power of two we could use a
|
||
|
|
* cheaper way --cvg
|
||
|
|
*/
|
||
|
|
return nmi_watchdog & (NMI_LOCAL_APIC | NMI_IO_APIC);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
void lapic_watchdog_stop(void);
|
||
|
|
int lapic_watchdog_init(unsigned nmi_hz);
|
||
|
|
int lapic_wd_event(unsigned nmi_hz);
|
||
|
|
unsigned lapic_adjust_nmi_hz(unsigned hz);
|
||
|
|
void disable_lapic_nmi_watchdog(void);
|
||
|
|
void enable_lapic_nmi_watchdog(void);
|
||
|
|
void stop_nmi(void);
|
||
|
|
void restart_nmi(void);
|
||
|
|
|
||
|
|
#endif /* _ASM_X86_NMI_H */
|