From f61d5b46771a352fad1ac7f99008ef52a7ffcb72 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 6 Aug 2013 12:40:16 -0400
Subject: [PATCH] drm/radeon/cik: use a mutex to properly lock srbm instanced
 registers

We need proper locking in the driver when accessing instanced
registers on CIK.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Reading git-format-patch failed