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RE: RE: RE: [Xen-devel] AGP problems with 2.0.5

To: "Kurt Garloff" <kurt@xxxxxxxxxx>
Subject: RE: RE: RE: [Xen-devel] AGP problems with 2.0.5
From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Date: Sun, 13 Mar 2005 19:21:18 -0000
Cc: "Marcel Meyer" <meyerm@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxxx>, <ian.pratt@xxxxxxxxxxxx>, <ian.pratt@xxxxxxxxxxxx>
Delivery-date: Sun, 13 Mar 2005 19:22:07 +0000
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Thread-index: AcUn++WQdU8KJKdCRDGyDdwH9jCB5AABD4iw
Thread-topic: RE: RE: [Xen-devel] AGP problems with 2.0.5
> > I guess we'll just have to do a code review of radeon and 
> look to see
> > whether there are any duff assumptions...
> I did not find any phys_to_virt() or such.
> What else do I need to look for.

Some of the stuff in drm_vm looks pretty scary at first glance. It would
be good to find out what code path its taking so we can concentrate on
where to look.

Knowing if the remap_pfn_range is called and completes OK would be

The code near the comment that says "It's AGP memory - find the real
physical page to map" is worth a closer look too.


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