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There should be no need to do posting reads between all the cursor register accessess. Let's just drop them. v2: Rebase due to I915_WRITE_FW() and uncore.lock Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> #v1 Link: http://patchwork.freedesktop.org/patch/msgid/20170327185546.2977-8-ville.syrjala@linux.intel.com