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)
commitd71de14ddf423ccc9a2e3f7e37553c99ead20d7c
tree407abe86ecdda635a5b60ac8826472316343c5dd
parentdb099c8f963fe656108e0a068274c5580a17f69b
drm/i915: gen7: Disable the RHWO optimization as it can cause GPU hangs.

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>
drivers/gpu/drm/i915/i915_reg.h
drivers/gpu/drm/i915/intel_display.c