From d6e18a3406d401edeb96a01c7bb9d1689454c41b Mon Sep 17 00:00:00 2001
From: Ilija Hadzic <ihadzic@research.bell-labs.com>
Date: Wed, 2 Jan 2013 18:27:44 -0500
Subject: [PATCH] drm/radeon: add a check to wait_reg_mem command
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WAIT_REG_MEM on register does not allow the use of PFP.
Enforce this restriction when checking packets sent from
userland.

Signed-off-by: Ilija Hadzic <ihadzic@research.bell-labs.com>
Reviewed-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Reading git-format-patch failed