From 4de0043617f949fdac538fd59335e2150cd1b863 Mon Sep 17 00:00:00 2001 From: Cyrill Gorcunov Date: Tue, 24 Jun 2008 22:52:06 +0200 Subject: x86: nmi_watchdog - introduce nmi_watchdog_active() helper Signed-off-by: Cyrill Gorcunov Cc: macro@linux-mips.org Signed-off-by: Ingo Molnar --- include/asm-x86/nmi.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/asm-x86/nmi.h') diff --git a/include/asm-x86/nmi.h b/include/asm-x86/nmi.h index 1348e542360f..21f8d0202a82 100644 --- a/include/asm-x86/nmi.h +++ b/include/asm-x86/nmi.h @@ -56,6 +56,19 @@ 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); -- cgit v1.2.2