From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 22 Sep 2008 17:02:25 +0000 (+0200)
Subject: x86: prevent C-states hang on AMD C1E enabled machines
X-Git-Tag: v2.6.27-rc8~27^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a8d6829044901a67732904be5f1eacdf8539604f;p=pandora-kernel.git

x86: prevent C-states hang on AMD C1E enabled machines

Impact: System hang when AMD C1E machines switch into C2/C3

AMD C1E enabled systems do not work with normal ACPI C-states
even if the BIOS is advertising them. Limit the C-states to
C1 for the ACPI processor idle code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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