From: Alex Deucher <alexdeucher@gmail.com>
Date: Mon, 26 Jul 2010 22:51:53 +0000 (-0400)
Subject: drm/radeon/kms/r7xx: add workaround for hw issue with HDP flush
X-Git-Tag: v2.6.36-rc1~540^2~20^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=812d046915f48236657f02c06d7dc47140e9ceda;p=pandora-kernel.git

drm/radeon/kms/r7xx: add workaround for hw issue with HDP flush

Use of HDP_*_COHERENCY_FLUSH_CNTL can cause a hang in certain
situations.  Add workaround.

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