From a00024b03dbfe9dfcd2ecbb5a508e59fec6fdf82 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 18 Sep 2012 16:06:01 -0400
Subject: [PATCH] drm/radeon/cik: stop page faults from hanging the system (v2)

Redirect invalid memory accesses to the default page
instead of locking up the memory controller.

v2: rebase on top of 2 level PTs

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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