CTRL_INV_TO_MASK 399 drivers/iommu/amd_iommu_init.c ctrl &= ~CTRL_INV_TO_MASK; CTRL_INV_TO_MASK 400 drivers/iommu/amd_iommu_init.c ctrl |= (timeout << CONTROL_INV_TIMEOUT) & CTRL_INV_TO_MASK;