DMAR_PMEN_REG 1560 drivers/iommu/intel-iommu.c pmen = readl(iommu->reg + DMAR_PMEN_REG); DMAR_PMEN_REG 1562 drivers/iommu/intel-iommu.c writel(pmen, iommu->reg + DMAR_PMEN_REG); DMAR_PMEN_REG 1565 drivers/iommu/intel-iommu.c IOMMU_WAIT_OP(iommu, DMAR_PMEN_REG,