From: Siddha, Suresh B <suresh.b.siddha@intel.com>
Date: Wed, 30 Jan 2008 12:33:43 +0000 (+0100)
Subject: x86: set strong uncacheable where UC is really desired
X-Git-Tag: v2.6.25-rc1~1143^2~133
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4138cc3418f5eaa7524ff8e927102863f1ba0ea5;p=pandora-kernel.git

x86: set strong uncacheable where UC is really desired

Also use _PAGE_PWT for all the mappings which need uncache mapping.
Instead of existing PAT2 which is UC- (and can be overwritten by MTRRs),
we now use PAT3 which is strong uncacheable.

This makes it consistent with pgprot_noncached()

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

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