From: Dave Jones <davej@codemonkey.org.uk>
To: Daniel Nofftz <nofftz@castor.Uni-Trier.DE>
Cc: Pavel Machek <pavel@ucw.cz>,
linux-kernel@vger.kernel.org, torvalds@transmeta.com,
alan@redhat.com
Subject: Re: A new Athlon 'bug'.
Date: Fri, 29 Nov 2002 15:11:45 +0000 [thread overview]
Message-ID: <20021129151145.GC20166@suse.de> (raw)
In-Reply-To: <Pine.LNX.4.44.0211291554330.30552-100000@hades.uni-trier.de>
On Fri, Nov 29, 2002 at 04:08:32PM +0100, Daniel Nofftz wrote:
> maybe somone remembers that i hacked a little bit with the power saving
> modes of the athlon processor. so far as i know, the clk_ctl register is
> importand when the athlon processor comes back from acpi-c2 mode. in c2 he
> is disconnected from the system bus and the internal clock is clocked
> down. in some cases a false value in this register could prevent the
> athlon processor to come back from c2 -> lockup of the machine or
> something like it ...
Correct. It contains values that indicate to the CPU how to ramp up
the CPU clock during low-power modes.
Dave
--
| Dave Jones. http://www.codemonkey.org.uk
| SuSE Labs
prev parent reply other threads:[~2002-11-29 15:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-21 15:56 A new Athlon 'bug' davej
2002-11-25 21:34 ` Pavel Machek
2002-11-26 19:41 ` Dave Jones
2002-11-29 15:08 ` Daniel Nofftz
2002-11-29 15:11 ` Dave Jones [this message]
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