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drm/i915: Set INSTPM_FORCE_ORDERING via LRI on gen8, drop it on gen9+
INSTPM is saved in the logical context so we should initialize it using LRIs on gen8. It actually defaults to 1 starting from HSW, but let's keep the write around anyway. Also drop the INSTPM_FORCE_ORDERING setup entirely on gen9+ since it's now a reserved bit. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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