amd64/160561: no C-states on atom D525

[umage]

The following reply was made to PR amd64/160561; it has been noted by GNATS.

From: umage <umage at netvor.sk>
To: bug-followup at FreeBSD.org, theultramage at gmail.com
Cc:  
Subject: Re: amd64/160561: no C-states on atom D525
Date: Sun, 08 Jan 2012 12:05:42 +0100

 A freebsd user with an identical issue pointed me at
 http://download.intel.com/embedded/processors/prodbrief/323288.pdf which
 lists various atom processors and their "C-states supported". Turns out
 D525 has no C-state power management, so what we encountered was not a
 bug, but an intentional (but not advertised) hardware 'feature'.