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drm/i915: gen7: Disable the RHWO optimization as it can cause GPU hangs.
authorKenneth Graunke <kenneth@whitecape.org>
Wed, 8 Feb 2012 20:53:52 +0000 (12:53 -0800)
committerJesse Barnes <jbarnes@virtuousgeek.org>
Fri, 10 Feb 2012 22:19:17 +0000 (14:19 -0800)
The BSpec Workarounds page states that bits 10 and 26 must be set to
avoid 3D ring hangs.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41353
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=44610
Tested-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

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