On Wed, 18 Apr 2012 17:12:26 +0100 Chris Wilson <chris at chris-wilson.co.uk> wrote: > IvyBridge requires an extra frame between disabling the low power > watermarks and enabling scaling on the sprite plane. If the scaling > is already enabled, then we have already disabled the low power > watermarks and need not incur an extra wait. > > Similarly, as we disable the scaling when turning off the sprite plane, > we can update the scaling enabled flag and restore the low power > watermarks. > > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk> > Cc: Jesse Barnes <jbarnes at virtuousgeek.org> > --- Yep, this is a good optimization. Reviewed-by: Jesse Barnes <jbarnes at virtuousgeek.org> -- Jesse Barnes, Intel Open Source Technology Center
