On Thursday 30 August 2007 19:43:14 Robert Richter wrote:
> This patch implements PCI extended configuration space access for
> AMD's Barcelona CPUs. It extends the method using CF8/CFC IO
> addresses. An x86 capability bit has been introduced that is set for
> CPUs supporting PCI extended config space accesses.
We shouldn't need this because extended config space should work
here and Linux should use it
(especially after we added the ugly Barcelona workaround into that code)
The only exception would be if the user disables MMCONFIG in CONFIG, but that's
their own fault then.
Ok there might be buggy BIOS around with no or no usable MCFG table, but since
extended config space is not really a critical feature that's not a big issue.
So I don't think we want this special case code at all and should
just rely on MMCONFIG.
-Andi
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