On Wed, 2006-03-08 at 15:38 +0100, Andi Kleen wrote:
> Hmm, I reread the thread and with the "i don't need a flush, just ordering"
> part of your description it makes sense.
Actually, the sfence architecturally guarantees a WC store buffer flush
on x86_64 too, which I need. Obviously, on CPUs that don't have WC
on-chip, this is not an issue.
> My second objection still stands though. Maybe we should add this as
> part of a generic portable PAT/WC infrastructure. But isolated
> it doesn't make sense.
Fine. I'll put it in the driver for now, and work on the generic WC
infrastructure in parallel.
<b
--
Bryan O'Sullivan <[email protected]>
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