Re: small PCI probe patch for odd 64 bit BARs
From: Greg KH
Date: Fri Nov 12 2004 - 17:38:37 EST
On Thu, Nov 11, 2004 at 12:58:52PM -0800, Tim Hockin wrote:
> On Thu, Nov 11, 2004 at 09:54:19AM -0800, Greg KH wrote:
> > I'll wait till you test this on 2.6 before applying it.
> OK. Tested now on real hardware in 32 bit and 64 bit kernels. 32 bit
> found another dumbness, that we can fix up.
> Some PCI bridges default their UPPER prefetch windows to an unused state
> of base > limit. We should not use those values if we find that. It
> might be nice to reprogram them to 0, in fact.
> Yes, BIOS should fix that up, but apparently, some do not.
> Signed-Off-By: Tim Hockin <thockin@xxxxxxxxxx>
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