qi_flush_iotlb 2985 drivers/iommu/intel-iommu.c iommu->flush.flush_iotlb = qi_flush_iotlb; qi_flush_iotlb 646 include/linux/intel-iommu.h extern void qi_flush_iotlb(struct intel_iommu *iommu, u16 did, u64 addr,