linux-kernel - Re: [PATCH] fixes to drm-next

Open Source and information security mailing list archives

Date:	Tue, 13 Dec 2011 22:09:03 +0000 (GMT)
From:	James Simmons <jsimmons@...radead.org>
To:	Thomas Hellstrom <thellstrom@...are.com>
cc:	Jerome Glisse <j.glisse@...il.com>, bskeggs@...hat.com,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH] fixes to drm-next - TTM DMA code (v1)

> Hi!
> 
> I'm not whether any drivers are still using the AGP backend?

Actually the openchrome projects KMS kernel uses a AGP backend.

> Calling unpopulate / (previous clear) each time unbind is done should be quite
> inefficient with that one, as AGP sets up its own data structures and copies
> page tables
> on each populate. That should really be avoided unless there is a good reason
> to have it.
> 
> /Thomas
> 
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@...ts.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/dri-devel
> 
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