cvs commit: src/sys/i386/pci pci_cfgreg.c
obrien at freebsd.org
Tue Dec 14 09:23:51 PST 2004
On Mon, Dec 13, 2004 at 08:43:33PM -0700, Scott Long wrote:
> Peter Wemm wrote:
> >On that note, we still barely support anything more from AMD's platform
> >than the basic instruction set due to lack of documentation.. That's
> >why FreeBSD/amd64 ran so quickly on the Intel hardware. We only used
> >the most basic features of the generic instruction set in an otherwise
> >PC platform. We don't take advantage of the IOMMU, the timers, etc.
> >(Still no documentation). I'd have expected AMD to push as hard as
> >they can to get every advantage while Intel is still trying to recover
> >their balance.
> Having IOMMU docs could have a very positive benefit for things like ATA
> on amd64. However, I can't even begin to evaluate what that benefit
> might be until docs become available.
what docs do you want?
-- David (obrien at FreeBSD.org)
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