I810_PGETBL_ENABLED
writel(virt_to_phys(gtt_table) | I810_PGETBL_ENABLED,
pgetbl_ctl2 &= ~I810_PGETBL_ENABLED;
& ~I810_PGETBL_ENABLED;
intel_private.PGETBL_save |= I810_PGETBL_ENABLED;
if (HAS_PGTBL_EN && (readl(reg) & I810_PGETBL_ENABLED) == 0) {