CONT_PMD_SHIFT
#define CONT_PMDS (1 << (CONT_PMD_SHIFT - PMD_SHIFT))
case CONT_PMD_SHIFT:
return CONT_PMD_SHIFT - PAGE_SHIFT;
hugetlb_add_hstate(CONT_PMD_SHIFT - PAGE_SHIFT);
#define ARM64_MEMSTART_SHIFT CONT_PMD_SHIFT