NUM_EARLY_PMDS    221 arch/riscv/mm/init.c pmd_t early_pmd[PTRS_PER_PMD * NUM_EARLY_PMDS] __initdata __aligned(PAGE_SIZE);
NUM_EARLY_PMDS    241 arch/riscv/mm/init.c 	BUG_ON(pmd_num >= NUM_EARLY_PMDS);