x86: disable apic timer for AMD C1E enabled CPUs

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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>

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Thomas Gleixner 2007-10-12 23:04:07 +02:00 • committed by Thomas Gleixner

parent 4e77ae3e10

commit fb79d22e1d

3 changed files with 36 additions and 1 deletions

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2

arch/x86/kernel/apic_64.c

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34

arch/x86/kernel/setup_64.c

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1

include/asm-x86/apic_64.h

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