From 7e7b41d2ff30ed7ad4bf401d18566e6f38e42e4f Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexdeucher@gmail.com>
Date: Thu, 2 Sep 2010 21:32:32 -0400
Subject: [PATCH] drm/radeon/kms/evergreen: fix gpu hangs in userspace accel
 code

These VGT regs need to be programmed via the ring rather than
MMIO as on previous asics (r6xx/r7xx).

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
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