GSC_HECI_VALIDITY_MARKER
header->validity_marker = GSC_HECI_VALIDITY_MARKER;
if (header_out->validity_marker != GSC_HECI_VALIDITY_MARKER) {
if (header->validity_marker != GSC_HECI_VALIDITY_MARKER) {
if (marker != GSC_HECI_VALIDITY_MARKER)
mtl_gsc_header_wr(xe, map, offset, validity_marker, GSC_HECI_VALIDITY_MARKER);