Re: [Xen-devel] AGP problems with 2.0.5

[Kurt Garloff <kurt@xxxxxxxxxx>]

Hi Keir,

On Mon, Mar 14, 2005 at 12:56:10PM +0000, Keir Fraser wrote:
> On 14 Mar 2005, at 12:26, Kurt Garloff wrote:
> >Shouldn't we just use the __sparc__ code path in drm_vm.c:678, then ?
> 
> Well that would work short-term, 

Indeed, it does.
See patch attached.

> but it doesn't generalise to all the 
> other drivers now using remap_pfn_range. Surely the maintainers would
> appreciate an io_remap_ call that just does the right thing on all 
> architectures?

I'm sure they would appreciate this.

> Sounds suitable as a short-term vendor/distro patch or 
> proof-of-concept. But we should think about cooking up our own, 
> cleaner, patch to push upstream.

Agreed.

> In fact there are a bunch of generic-code patches in our sparse tree 
> that I think we should actually have as patches we apply to our 
> pristine tree at build time. Then we can have the aim of actively 
> pushing each of those single-purpose patches upstream and always strive 
> to get the patches subdir emptied.

Yes, that's a very good plan.

Regards,
-- 
Kurt Garloff                   <kurt@xxxxxxxxxx>             [Koeln, DE]
Physics:Plasma modeling <garloff@xxxxxxxxxxxxxxxxxxx> [TU Eindhoven, NL]
Linux: SUSE Labs (Director)    <garloff@xxxxxxx>            [Novell Inc]

Attachment: drm-io-remap-pfn-range
Description: drm-io-remap-pfn-range

Attachment: pgpPPlbFWUtY7.pgp
Description: PGP signature