From 4fb0bbd5d0f13f39a2fe5e092a64cece3a4afcb9 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Thu, 7 Aug 2014 09:57:21 -0400
Subject: [PATCH] drm/radeon: use pfp for all vm_flush related updates

May fix hangs in some cases.

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