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From: David Miller <davem@davemloft.net>
To: michel@daenzer.net
Cc: benh@kernel.crashing.org, airlied@linux.ie,
	dri-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org
Subject: Re: [PATCH]: drm: radeon: Use surface for PCI GART table.
Date: Sat, 14 Feb 2009 02:04:31 -0800 (PST)	[thread overview]
Message-ID: <20090214.020431.193689843.davem@davemloft.net> (raw)
In-Reply-To: <1234605599.4823.177.camel@thor>

From: Michel Dänzer <michel@daenzer.net>
Date: Sat, 14 Feb 2009 10:59:59 +0100

> On Sat, 2009-02-14 at 01:51 -0800, David Miller wrote:
> > This allocates a physical surface for the PCI GART table, this way no
> > matter what other surface configurations exist the GART table will
> > always be seen by the hardware properly.
> 
> BTW, I don't think the swapping settings affect GPU access to the table,
> only CPU access, but this is a good solution anyway.

They absolutely and positively do effect GPU access to the table.
I've proven it with many conclusive tests over the past 3 days.

> This is only really necessary on big endian, but other than that:
> 
> Acked-By: Michel Dänzer <daenzer@vmware.com>

Thanks.

  reply	other threads:[~2009-02-14 10:04 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-14  9:51 [PATCH]: drm: radeon: Use surface for PCI GART table David Miller
2009-02-14  9:59 ` Michel Dänzer
2009-02-14 10:04   ` David Miller [this message]
2009-02-14 11:35     ` Jerome Glisse
2009-02-14 11:41       ` Dave Airlie

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