Can you give me an example of non-PCI memory that would be
non-prefetchable that you'd like us to try? We can see if our
host CPUs have an area like that ... we just need to know
what device to look for first :)
You can mark the pci inbound window on the 83xx as non-prefetchable
(assuming 83xx is host). On a x86 host I doubt there is any easy way to
get non-prefetchable memory.
Yep, we were going to do that, but chose to use the
1MB region already setup for the IMMRs since its already
marked as non-prefetchable. We were only doing reads, so
it wasn't going to hurt anything.
I doubt that marking one of the other BAR regions
as non-prefetchable will give a different result.
However, we're more than happy to double-check if
you'd like.
Cheers,
Dave
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