[PATCH 0/2] Introduce PCI_FIXUP_IOMMU
joro at 8bytes.org
Mon Jun 22 07:53:48 EDT 2020
On Mon, Jun 01, 2020 at 12:41:04PM -0500, Bjorn Helgaas wrote:
> I found this  from Paul Menzel, which was a slowdown caused by
> quirk_usb_early_handoff(). I think the real problem is individual
> quirks that take a long time.
> The PCI_FIXUP_IOMMU things we're talking about should be fast, and of
> course, they're only run for matching devices anyway. So I'd rather
> keep them as PCI_FIXUP_FINAL than add a whole new phase.
Okay, so if it is not a performance problem, then I am fine with using
PCI_FIXUP_FINAL. But I dislike calling the fixups from IOMMU code, there
must be a better solution.
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