Yinghai Lu wrote:
the sysdata stuff try to fix:
when calgary iommu code was introduced, it is trying to share sysdata
that orginally is initialized k8_bus.c and used by pcibus_to_node. but
that only happen with AMD K8 platform. and have nothing to do with
calgary.
incorrect: sysdata is initialized when the structure is created, which
clearly not only in k8_bus.c
Then my patch get_mp_bus_to_node_as_early will use that sysdata as
node as early as possible before the pci_scan bus is called.
that's incorrect, since it assumes NUMA owns ->sysdata
then Mul came out his patch ...to split the sharing that will never happen.
that's incorrect, ->sysdata will be shared among Calgary, NUMA, and
PCI-domain support.
Also i don't think anyone test muli sysdata patch with amd64 platform
with acpi=off. even muli himself.
I did. I did all PCI domain support development on AMD64 platform.
calgary support bus numa at this time? i mean mult peer root bus on
different node..
My PCI domains patch add support for multiple peer root buses. That's
the definition of PCI domain support.
Branch 'pciseg' of
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6.git
Jeff
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