Re: Some Alphas broken by f75b99d5a77d (PCI: Enforce bus address limits in resource allocation)

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On Sun, Mar 8, 2020 at 8:30 AM Ivan Kokshaysky <ink@xxxxxxxxxxxxxxxxxxxx> wrote:
> Wholeheartedly agree. In fact, changes to generic PCI code required
> for proper root bus sizing are quite minimal now since we have
> struct pci_host_bridge. It's mostly additional checks for bus->self
> being NULL (as it normally is on the root bus) in the
> __pci_bus_size_bridges() path, plus new bridge->size_windows flag.
> See patch below (tested on UP1500). Note that on irongate we're
> only interested in calculation of non-prefetchable PCI memory aperture,
> but one can do the same for io and prefetchable memory as well.

Thanks Ivan! The patch works for me as well.



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