From a211276a8e4dbafbcd492ae3bee84a4d6db3fb75 Mon Sep 17 00:00:00 2001
From: Max Filippov <jcmvbkbc@gmail.com>
Date: Wed, 10 Sep 2014 21:05:21 -0700
Subject: [PATCH] xtensa: implement pgprot_noncached

The default pgprot_noncached doesn't do anything. This leads to issues
when drivers rely on it to disable caching in userspace mappings.
Implement pgprot_noncached properly so that caching of userspace mappings
could be controlled.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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