Re: amd64-agp: resume but too late?

From: Thomas Gleixner
Date: Tue May 27 2008 - 08:19:19 EST


On Mon, 26 May 2008, Pavel Machek wrote:
> Hi!
>
> I don't get it:
>
> --- a/drivers/char/agp/amd64-agp.c
> +++ b/drivers/char/agp/amd64-agp.c
> @@ -549,6 +549,8 @@ static int agp_amd64_suspend(struct pci_
> return 0;
> }
>
> +/* FIXME: this is strange; we enable iommu translation here, but that
> + * may be too late, no? */
> static int agp_amd64_resume(struct pci_dev *pdev)
> {
> pci_set_power_state(pdev, PCI_D0);
>
> ...but resume is normal pci device, so other devices may be resumed
> before this one, and already depend on iommu running...
>
> How is this supposed to work? Should agp_amd64_resume be called from
> sysdev or something like that?

Hmm, you sent a patch some days ago to change it to
suspend_late/resume_early. Is the discussion resolved about that ?

Thanks,
tglx
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