PTE_PARENT_SIZE 321 arch/riscv/mm/init.c if (!(base & (PTE_PARENT_SIZE - 1)) && PTE_PARENT_SIZE 322 arch/riscv/mm/init.c !(size & (PTE_PARENT_SIZE - 1))) PTE_PARENT_SIZE 323 arch/riscv/mm/init.c map_size = PTE_PARENT_SIZE;