x86: disable apic timer for AMD C1E enabled CPUs
AMDs C1E enabled CPUs stop the local apic timer, when both cores are
idle. This is a hardware feature which breaks highres/dynticks.
Add the same quirk as we have for 32 bit already.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
diff --git a/include/asm-x86/apic_64.h b/include/asm-x86/apic_64.h
index 81335e9..f32f654 100644
--- a/include/asm-x86/apic_64.h
+++ b/include/asm-x86/apic_64.h
@@ -19,6 +19,7 @@
extern int apic_verbosity;
extern int apic_runs_main_timer;
extern int ioapic_force;
+extern int disable_apic_timer;
/*
* Define the default level of output to be very little