From: Boris Ostrovsky <boris.ostrovsky@amd.com>
Date: Tue, 13 Mar 2012 18:55:09 +0000 (+0100)
Subject: idle, x86: Allow off-lined CPU to enter deeper C states
X-Git-Tag: v3.4-rc2~5^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1a022e3f1be11730bd8747b1af96a0274bf6356e;p=pandora-kernel.git

idle, x86: Allow off-lined CPU to enter deeper C states

Currently when a CPU is off-lined it enters either MWAIT-based idle or,
if MWAIT is not desired or supported, HLT-based idle (which places the
processor in C1 state). This patch allows processors without MWAIT
support to stay in states deeper than C1.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@amd.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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