From: Keir Fraser <Keir.Fraser@cl.cam.ac.uk>
To: Paul Mackerras <paulus@samba.org>
Cc: Jesse Barnes <jbarnes@engr.sgi.com>,
akpm@osdl.org, Ian.Pratt@cl.cam.ac.uk, riel@redhat.com,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
kurt@garloff.de,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Christian.Limpach@cl.cam.ac.uk
Subject: Re: [PATCH] Xen/i386 cleanups - AGP bus/phys cleanups
Date: Fri, 18 Mar 2005 09:05:06 +0000 [thread overview]
Message-ID: <03425ef53cbc0ed3d82b5a127f892180@cl.cam.ac.uk> (raw)
In-Reply-To: <16954.7656.838769.483631@cargo.ozlabs.ibm.com>
On 18 Mar 2005, at 00:16, Paul Mackerras wrote:
> That sounds like a good way to make AGP accesses slower. :)
>
> Seriously, given that AGP is a technology that is being superseded by
> PCI Express, I think it's reasonable to look at the range of current
> implementations to see what we have to cope with. So I don't think
> it's worth worrying too much about the possibility of GARTs that go
> through the IOMMU. However, the idea of having phys_to_agp/agp_to_phys
> (or virt_to_agp/agp_to_virt) sounds like it wouldn't be too much
> effort, if it would help Xen.
I'll post a patch for this next week. Thanks for your patience so far!
-- Keir
prev parent reply other threads:[~2005-03-18 9:03 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-16 11:48 Keir Fraser
2005-03-16 14:31 ` Christoph Hellwig
2005-03-16 14:58 ` Keir Fraser
2005-03-16 15:01 ` Rik van Riel
2005-03-16 18:10 ` Christoph Hellwig
2005-03-16 18:35 ` Keir Fraser
2005-03-16 18:42 ` Jesse Barnes
2005-03-16 19:08 ` Keir Fraser
2005-03-16 19:06 ` Christoph Hellwig
2005-03-16 19:11 ` Keir Fraser
2005-03-16 17:40 ` Alan Cox
2005-03-16 17:54 ` Jesse Barnes
2005-03-16 21:24 ` Paul Mackerras
2005-03-16 22:06 ` Jesse Barnes
2005-03-16 23:55 ` Rik van Riel
2005-03-17 0:39 ` Paul Mackerras
2005-03-17 1:05 ` Tupshin Harper
2005-03-17 3:44 ` Rik van Riel
2005-03-17 4:42 ` Christoph Hellwig
2005-03-17 4:58 ` Rik van Riel
2005-03-17 9:16 ` Keir Fraser
2005-03-17 9:34 ` Paul Mackerras
2005-03-17 10:56 ` Keir Fraser
2005-03-19 10:07 ` Eric W. Biederman
2005-03-19 10:56 ` Christian Limpach
2005-03-19 13:01 ` Keir Fraser
2005-03-17 13:53 ` Alan Cox
2005-03-18 0:16 ` Paul Mackerras
2005-03-18 4:23 ` Rik van Riel
2005-03-18 9:05 ` Keir Fraser [this message]
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