From: Christer Weinigel <christer@weinigel.se>
To: Alan Cox <alan@redhat.com>
Cc: miura@da-cha.org (Hiroshi Miura),
davej@suse.de, hpa@zytor.com, linux-kernel@vger.kernel.org
Subject: Re: workaround for Cyrix MediaGX/NSC Geode companion CS5510/5520 PIT latch bug
Date: 20 Oct 2002 21:16:41 +0200 [thread overview]
Message-ID: <878z0shqee.fsf@zoo.weinigel.se> (raw)
In-Reply-To: <200210201719.g9KHJeC21138@devserv.devel.redhat.com>
Alan Cox <alan@redhat.com> writes:
> > with this patch, timejumps or timebacks don't occurs.
> > This patch also removes dodgy_tsc() workaround.
> >
> > this patch tried on mini note-PC CASSIOPEIA FIVA http://www.casio.co.jp/mpc/103/
> > you can get spec from http://www.da-cha.org/fiva/fiva.html
>
> Excellent. My wife has a 5520 based system and I can test it there too. Dave
> if Windows always generates that delayed sequence (which btw the docs say
> the delay is required...) it may explain the similar VIA weirdness
I have seen a similar problem with a Geode SC1200 based system which
basically is a GX1 and a CS5530 integrated on one chip. I'm starting
to wonder if the same bug has popped up again in the newer chip.
Unfortunately, I haven't got access to the troublesome system anymore
so I can't test the patch.
/Christer
--
"Just how much can I get away with and still go to heaven?"
Freelance consultant specializing in device driver programming for Linux
Christer Weinigel <christer@weinigel.se> http://www.weinigel.se
next prev parent reply other threads:[~2002-10-20 19:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-17 17:03 workaround for Cyrix MediaGX/NSC Geode companion CS5510/5520 PIT latch bug k$vdp(%V@gY!_|7x7Ht)^ih5\%\l'hcl$`sqp;%`boxPHDJB<~Sr8(e:zPKmeZ)ZPml[0v\|[V00Jm G,%5V5X9Mw7j}(8+!o>&&wmQ]Xh=j Hiroshi Miura
2002-10-20 17:19 ` workaround for Cyrix MediaGX/NSC Geode companion CS5510/5520 PIT latch bug Alan Cox
2002-10-20 19:16 ` Christer Weinigel [this message]
2002-10-20 19:18 ` Alan Cox
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