MMIO_EXT_FEATURES 1758 drivers/iommu/amd_iommu_init.c 	low  = readl(iommu->mmio_base + MMIO_EXT_FEATURES);
MMIO_EXT_FEATURES 1759 drivers/iommu/amd_iommu_init.c 	high = readl(iommu->mmio_base + MMIO_EXT_FEATURES + 4);