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authorJacob Pan2011-11-10 14:42:40 +0100
committerIngo Molnar2011-11-10 16:20:57 +0100
commit1ade93efd0a3dda5b0c0afda8ab8f4bd12938c1b (patch)
tree616a2c11fb460b0a872486eb89c30f7884ff33e2 /arch/x86/include/asm
parentx86/apic: Do not clear nr_irqs_gsi if no legacy irqs (diff)
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x86/apic: Allow use of lapic timer early calibration result
lapic timer calibration can be combined with tsc in platform specific calibration functions. if such calibration result is obtained early, we can skip the redundant calibration loops. Signed-off-by: Jacob Pan <jacob.jun.pan@intel.com> Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm')
-rw-r--r--arch/x86/include/asm/apic.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 9b7273cb2193..1a6c09af048f 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -49,6 +49,7 @@ extern unsigned int apic_verbosity;
extern int local_apic_timer_c2_ok;
extern int disable_apic;
+extern unsigned int lapic_timer_frequency;
#ifdef CONFIG_SMP
extern void __inquire_remote_apic(int apicid);