Re: CPA patchset

[Ingo Molnar]

* Andi Kleen <ak@xxxxxxx> wrote:

> >   WBINVD isnt particular fast (takes a few msecs), but why is that a 
> >   problem? Drivers dont do high-frequency ioremap-ing. It's 
> >   typically only done at driver/device startup and that's it.
> 
> Actually graphics drivers can do higher frequency allocation of WC 
> memory (with PAT) support.

but that's not too smart: why dont they use WB plus cflush instead? 
ioremap() will always be slow and we dont care about stupid uses of it.

	Ingo
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