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(parent: cd86a53) | patch
ACPI: Disable ARB_DISABLE on platforms where it is not needed
authorPallipadi, Venkatesh <venkatesh.pallipadi@intel.com>
Fri, 22 May 2009 00:09:10 +0000 (17:09 -0700)
committerLen Brown <len.brown@intel.com>
Thu, 28 May 2009 01:57:30 +0000 (21:57 -0400)
commitee1ca48fae7e575d5e399d4fdcfe0afc1212a64c
treed2d8c9bd4a806e603ba272a7f71644af1fdb16a3tree | snapshot (tar.gz zip)
parentcd86a536c81e9300d984327517548ca0652eebf9commit | diff
ACPI: Disable ARB_DISABLE on platforms where it is not needed

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>
arch/x86/kernel/acpi/cstate.c diff | blob | blame | history
drivers/acpi/processor_idle.c diff | blob | blame | history