Re: [PATCH]PCI:disable resource decode in PCI BAR detection

[Robert Hancock]

Yinghai Lu wrote:
> On 9/14/07, Robert Hancock <hancockr@xxxxxxx> wrote:
> > It's not impossible at all. In fact I'm quite sure (Jesse can confirm)
> > that in the case of the board he was using, it was an add-in graphics
> > card where he saw this problem.
> >
> > The fact is that in the case of MMCONFIG overlap with PCI BARs, which
> > one takes priority is completely undefined. In the case of this Intel
> > chipset, clearly the PCI Express device connected to the northbridge had
> > higher decode priority than the MMCONFIG aperture.
>
> can you relocate the MMCONFIG above RAM range? for example 512G...

On some chipsets that might be possible, however I think that on the 
Intel ones it's not possible to move it above 4G. And in any case this 
would require chipset-specific knowledge, which we would rather not have 
to need.

--
Robert Hancock      Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@xxxxxxxxxxxxx
Home Page: http://www.roberthancock.com/

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