linux-kernel - Re: [PATCH]: radeonfb: Fix copyarea for R300 and later.

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Message-Id: <20080806.141920.30577822.davem@davemloft.net>
Date:	Wed, 06 Aug 2008 14:19:20 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	akpm@...ux-foundation.org
Cc:	benh@...nel.crashing.org, linux-kernel@...r.kernel.org,
	stable@...nel.org
Subject: Re: [PATCH]: radeonfb: Fix copyarea for R300 and later.

From: Andrew Morton <akpm@...ux-foundation.org>
Date: Wed, 6 Aug 2008 08:43:29 -0700

> On Wed, 06 Aug 2008 00:35:36 -0700 (PDT) David Miller <davem@...emloft.net> wrote:
> 
> > [ Andrew/Ben, this fixes the bootup hang we were talking about
> >   the other day. ]
> > 
> > radeonfb: Fix copyarea for R300 and later.
> > 
> > For current chips we need to make sure the DSTCACHE_CTLSTAT and
> > WAIT_UNTIL registers are properly setup.  If not, a sequence of
> > copyarea operations can result in the 2D raster processor
> > hanging.
> 
> Neato.  This can be backported to -stable without also backporting your
> recent radeon-misc-corrections.patch, I assume?

Yes, it can.

I discussed the patch with Ben earlier and he wants to add the
same register writes to the solidfill code as well.
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