From: Christoph Hellwig <hch@infradead.org>
To: Keir Fraser <Keir.Fraser@cl.cam.ac.uk>
Cc: Christoph Hellwig <hch@infradead.org>,
akpm@osdl.org, Ian.Pratt@cl.cam.ac.uk,
linux-kernel@vger.kernel.org, Rik van Riel <riel@redhat.com>,
kurt@garloff.de, Christian.Limpach@cl.cam.ac.uk
Subject: Re: [PATCH] Xen/i386 cleanups - AGP bus/phys cleanups
Date: Wed, 16 Mar 2005 19:06:11 +0000 [thread overview]
Message-ID: <20050316190611.GA27945@infradead.org> (raw)
In-Reply-To: <521a4568db3e955cb245d10aaba2d3ce@cl.cam.ac.uk>
On Wed, Mar 16, 2005 at 06:35:28PM +0000, Keir Fraser wrote:
>
> On 16 Mar 2005, at 18:10, Christoph Hellwig wrote:
>
> >On Wed, Mar 16, 2005 at 10:01:07AM -0500, Rik van Riel wrote:
> >>In the case of AGP, the AGPGART effectively _is_ the
> >>IOMMU. Calculating the addresses right for programming
> >>the AGPGART is probably worth fixing.
> >
> >Well, it's a half-assed one. And some systems have a real one.
> >
> >But the real problem is that virt_to_bus doesn't exist at all
> >on architectures like ppc64, and this patch touches files like
> >generic.c and backend.c that aren't PC-specific. So you
> >effectively break agp support for them.
>
> The AGP driver is only configurable for ppc32, alpha, x86, x86_64 and
> ia64, all of which have virt_to_bus.
and ppc64 now, which doesn't.
next prev parent reply other threads:[~2005-03-16 19:08 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-16 11:48 [PATCH] Xen/i386 cleanups - AGP bus/phys cleanups 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 [this message]
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20050316190611.GA27945@infradead.org \
--to=hch@infradead.org \
--cc=Christian.Limpach@cl.cam.ac.uk \
--cc=Ian.Pratt@cl.cam.ac.uk \
--cc=Keir.Fraser@cl.cam.ac.uk \
--cc=akpm@osdl.org \
--cc=kurt@garloff.de \
--cc=linux-kernel@vger.kernel.org \
--cc=riel@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.