diff options
Diffstat (limited to 'include/asm-x86/nmi.h')
| -rw-r--r-- | include/asm-x86/nmi.h | 47 |
1 files changed, 19 insertions, 28 deletions
diff --git a/include/asm-x86/nmi.h b/include/asm-x86/nmi.h index 1e363021e72..21f8d0202a8 100644 --- a/include/asm-x86/nmi.h +++ b/include/asm-x86/nmi.h @@ -15,38 +15,13 @@ */ int do_nmi_callback(struct pt_regs *regs, int cpu); -#ifdef CONFIG_PM - -/** Replace the PM callback routine for NMI. */ -struct pm_dev *set_nmi_pm_callback(pm_callback callback); - -/** Unset the PM callback routine back to the default. */ -void unset_nmi_pm_callback(struct pm_dev *dev); - -#else - -static inline struct pm_dev *set_nmi_pm_callback(pm_callback callback) -{ - return 0; -} - -static inline void unset_nmi_pm_callback(struct pm_dev *dev) -{ -} - -#endif /* CONFIG_PM */ - #ifdef CONFIG_X86_64 extern void default_do_nmi(struct pt_regs *); -extern void die_nmi(char *str, struct pt_regs *regs, int do_panic); -extern void nmi_watchdog_default(void); -#else -#define nmi_watchdog_default() do {} while (0) #endif +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 unknown_nmi_panic; 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); @@ -62,12 +37,10 @@ extern int nmi_watchdog_tick(struct pt_regs *regs, unsigned reason); extern atomic_t nmi_active; extern unsigned int nmi_watchdog; -#define NMI_DISABLED -1 #define NMI_NONE 0 #define NMI_IO_APIC 1 #define NMI_LOCAL_APIC 2 #define NMI_INVALID 3 -#define NMI_DEFAULT NMI_DISABLED struct ctl_table; struct file; @@ -78,6 +51,24 @@ extern int unknown_nmi_panic; void __trigger_all_cpu_backtrace(void); #define trigger_all_cpu_backtrace() __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 & 0x3; +} #endif void lapic_watchdog_stop(void); |