MMCONF_UNIT
base = (tom2 + 2 * MMCONF_UNIT - 1) & MMCONF_MASK;
base = (range[0].start & MMCONF_MASK) - MMCONF_UNIT;
base = (range[hi_mmio_num - 1].end + MMCONF_UNIT) & MMCONF_MASK;
base = (range[i - 1].end + MMCONF_UNIT) & MMCONF_MASK;
#define MMCONF_MASK (~(MMCONF_UNIT - 1))
#define MMCONF_SIZE (MMCONF_UNIT << 8)