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From: "Gerhard Pircher" <gerhard_pircher@gmx.net>
To: benh@kernel.crashing.org
Cc: linuxppc-dev@ozlabs.org, dri-devel@lists.sourceforge.net,
	linux-kernel@vger.kernel.org, airlied@linux.ie
Subject: Re: [BUG/RFC/PATCH] drm: Fix for non-coherent DMA PowerPC
Date: Mon, 03 Mar 2008 22:37:05 +0100	[thread overview]
Message-ID: <20080303213705.312670@gmx.net> (raw)
In-Reply-To: <1204577051.21545.12.camel@pasglop>


-------- Original-Nachricht --------
> Datum: Tue, 04 Mar 2008 07:44:11 +1100
> Von: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> An: Gerhard Pircher <gerhard_pircher@gmx.net>
> CC: airlied@linux.ie, linux-kernel@vger.kernel.org, dri-devel@lists.sourceforge.net, linuxppc-dev@ozlabs.org
> Betreff: Re: [BUG/RFC/PATCH] drm: Fix for non-coherent DMA PowerPC

> On Mon, 2008-03-03 at 20:51 +0100, Gerhard Pircher wrote:
> > > Remove the GFP_HIGHMEM from the above. It looks like our cache
> > > flushing isn't going to work for highmem, it would need some
> > > kmap's for that.
> 
> > Yes, it looks like this was the problem. No kernel oops anymore.
> > The machine locks up anyway (which is a well known hardware problem).
> > It doesn't lock up with CPPIOMode=true, but probably only because the
> > initialization of DRI fails with "BAD cp_mode (f0000000)!".
> 
> Damn, I wonder why you insist trying to make that machine work :-) The
> hardware is just totally busted.
Because it's a challenge! :) Or because the OS4 developers say that
PCIGART works.

Gerhard
-- 
Psst! Geheimtipp: Online Games kostenlos spielen bei den GMX Free Games! 
http://games.entertainment.web.de/de/entertainment/games/free

      reply	other threads:[~2008-03-03 21:37 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-11-25 23:41 [RFC/PATCH] " Benjamin Herrenschmidt
2008-03-02 11:05 ` [BUG/RFC/PATCH] " Gerhard Pircher
2008-03-02 20:47   ` Benjamin Herrenschmidt
2008-03-02 22:30     ` Gerhard Pircher
2008-03-02 22:54       ` Benjamin Herrenschmidt
2008-03-02 22:56       ` Benjamin Herrenschmidt
2008-03-03 19:51         ` Gerhard Pircher
2008-03-03 20:44           ` Benjamin Herrenschmidt
2008-03-03 21:37             ` Gerhard Pircher [this message]

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