RMAP_NESTED_LPID_SHIFT
lpid = (n_rmap & RMAP_NESTED_LPID_MASK) >> RMAP_NESTED_LPID_SHIFT;
(((unsigned long) gp->l1_lpid) << RMAP_NESTED_LPID_SHIFT);
lpid = (n_rmap & RMAP_NESTED_LPID_MASK) >> RMAP_NESTED_LPID_SHIFT;