Re: i965 testers wanted (Re: intel-agp PM experiences)

From: Dave Jones
Date: Mon Jan 29 2007 - 17:35:00 EST


On Mon, Jan 29, 2007 at 11:21:31PM +0100, Frédéric Riss wrote:
> Le lundi 29 janvier 2007 à 23:10 +0100, Pavel Machek a écrit :
> > > > Ok, I guess we'd like some testing here... so that in can be fixed in
> > > > mainline...
> > >
> > > I can confirm that this patch is needed for my Intel Mac Mini to resume
> > > correctly when used without BIOS emulation (EFI mode). Here're the
> > > relevant lspci lines:
> >
> > Can you attach the patch you tested (there was link above, but it did
> > not work for me), and try pushing it through maintainers?
>
> I inlined the patch I used below. If I'm not mistaken, the maintainer is
> Davej which is already in the Cc: list. I think it's exactly the same as
> was submitted in http://lkml.org/lkml/2007/1/16/297 (I may have hand
> copied it though, can't remember). The above link is more complete as it
> contains the Signed-off-by and a description.
>
> diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
> index ab0a9c0..f64a115 100644
> --- a/drivers/char/agp/intel-agp.c
> +++ b/drivers/char/agp/intel-agp.c
> @@ -1955,6 +1955,15 @@ static int agp_intel_resume(struct pci_d
>
> pci_restore_state(pdev);
>
> + /* We should restore our graphics device's config space,
> + * as host bridge (00:00) resumes before graphics device (02:00),
> + * then our access to its pci space can work right.
> + */
> + if (intel_i810_private.i810_dev)
> + pci_restore_state(intel_i810_private.i810_dev);
> + if (intel_i830_private.i830_dev)
> + pci_restore_state(intel_i830_private.i830_dev);

This has been in agpgart.git since the 17th.
I asked Linus to pull last night.

Dave

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