xe_migrate_allow_identity
if (xe_migrate_allow_identity(vram_L0, &vram_it))
if (clear_vram && xe_migrate_allow_identity(clear_L0, &src_it)) {
if (is_vram && xe_migrate_allow_identity(*L0, cur)) {
if (src_is_vram && xe_migrate_allow_identity(src_L0, &src_it))
if (dst_is_vram && xe_migrate_allow_identity(src_L0, &dst_it))