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    SubjectRe: [Regression, post-rc2] Commit a5ee4eb7541 breaks OpenGL on RS780 (was: Re: Linux 2.6.34-rc3)
    From
    On Thu, Apr 1, 2010 at 4:17 PM, Linus Torvalds
    <torvalds@linux-foundation.org> wrote:
    >
    >
    > On Thu, 1 Apr 2010, Alex Deucher wrote:
    >>
    >> What I meant to say was MSI works fine on bridges other than the
    >> bridge the internal gfx lives on.  quirk_disable_msi() just disables
    >> MSI on the devices on that particular bridge as far as I understand
    >> it, but I'm by no means an expert on the PCI code.
    >
    > Yes, it disabled MSI only on devices under that bridge. But if it's the
    > northbridge, that would be everything, no?
    >
    > But I don't know what devices those
    >
    >        PCI_VENDOR_ID_AMD, 0x9602,
    >        PCI_VENDOR_ID_ASUSTEK, 0x9602,
    >
    > things are. If they are just a PCIE->PCI bridge rather than the root
    > bridge, then everything looks fine to me.
    >

    Yup, those are just the pci to pci bridges used for the internal gfx.
    Really there's only one, 0x9602, but some asus oem boards have the
    vendor id wrong.

    >                        Linus
    >
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