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Date: Sun, 03 Nov 2013 09:44:46 -0800
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Andreas Werner <wernerandy@gmx.de>, tglx@linutronix.de
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Subject: Re: [PATCH v2] X86: MM: Add PAT Type write-through in combination
 with mtrr
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On 11/03/2013 04:02 AM, Andreas Werner wrote:
> 
> Since marking IO Memory as cachable is not valid, WT is the
> best way for caching/bursting on MMIO Devices.
> 

Uh... WT *is* cachable...

	-hpa