ACPI: Disable ARB_DISABLE on platforms where it is not needed

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ARB_DISABLE is a NOP on all of the recent Intel platforms.

For such platforms, reduce contention on c3_lock
by skipping the fake ARB_DISABLE.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

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Pallipadi, Venkatesh 2009-05-21 17:09:10 -07:00 • committed by Len Brown

parent cd86a536c8

commit ee1ca48fae

2 changed files with 18 additions and 5 deletions

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16

arch/x86/kernel/acpi/cstate.c

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7

drivers/acpi/processor_idle.c

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