early_pmd 221 arch/riscv/mm/init.c pmd_t early_pmd[PTRS_PER_PMD * NUM_EARLY_PMDS] __initdata __aligned(PAGE_SIZE); early_pmd 242 arch/riscv/mm/init.c return (uintptr_t)&early_pmd[pmd_num * PTRS_PER_PMD];