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    SubjectRe: [PATCH/RFT] finish i386 and x86-64 sysdata conversion
    On 8/7/07, Jeff Garzik <> wrote:
    > 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

    before his first patch, numa juse use sysdata pointer for node.

    > > 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

    At that time, only it use that.

    > > then Mul came out his patch split the sharing that will never happen.
    > that's incorrect, ->sysdata will be shared among Calgary, NUMA, and
    > PCI-domain support.

    but not the same time on run time system with Calgary, NUMA.

    > > 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.

    really, but his first patch is broken with acpi=off.
    I guess you tested his patch plus your patch. instead of test his
    patch barely. I tested his patch + my patch, and it works well, and
    even test his patch only.

    > > 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://

    good, i will look at it.

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