prog_data->base.dispatch_grf_start_reg;
wm.SetupURBEntryReadLength = prog_data->num_varying_inputs * 2;
wm.SetupURBEntryReadOffset = 0;
wm.DepthCoefficientURBReadOffset = 1;
prog_data->base.dispatch_grf_start_reg;
wm.SetupURBEntryReadLength = prog_data->num_varying_inputs * 2;
wm.SetupURBEntryReadOffset = 0;
wm.DepthCoefficientURBReadOffset = 1;