6b52f81395
Apparently this field was removed on SKL, and according to the hardware docs for previous platforms "This field is only valid for a ForwardMsg message. It is ignored for other messages. The BarrierMsg message always increments the N0 notification counter". Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>