421 	u8 devfn;		/* PCI devfn number */  member
837 						       u8 bus, u8 devfn, int alloc)  in iommu_context_addr()  argument
845 		if (devfn >= 0x80) {  in iommu_context_addr()
846 			devfn -= 0x80;  in iommu_context_addr()
849 		devfn *= 2;  in iommu_context_addr()
867 	return &context[devfn];  in iommu_context_addr()
875 static struct intel_iommu *device_to_iommu(struct device *dev, u8 *bus, u8 *devfn)  in device_to_iommu()  argument
902 				*devfn = drhd->devices[i].devfn;  in device_to_iommu()
919 			*devfn = pdev->devfn;  in device_to_iommu()
937 static int device_context_mapped(struct intel_iommu *iommu, u8 bus, u8 devfn)  in device_context_mapped()  argument
944 	context = iommu_context_addr(iommu, bus, devfn, 0);  in device_context_mapped()
951 static void clear_context_table(struct intel_iommu *iommu, u8 bus, u8 devfn)  in clear_context_table()  argument
957 	context = iommu_context_addr(iommu, bus, devfn, 0);  in clear_context_table()
1441 			 u8 bus, u8 devfn)  in iommu_support_dev_iotlb()  argument
1452 		    info->devfn == devfn) {  in iommu_support_dev_iotlb()
1525 		sid = info->bus << 8 | info->devfn;  in iommu_flush_dev_iotlb()
1941 				      u8 bus, u8 devfn)  in domain_context_mapping_one()  argument
1957 		bus, PCI_SLOT(devfn), PCI_FUNC(devfn));  in domain_context_mapping_one()
1965 	context = iommu_context_addr(iommu, bus, devfn, 1);  in domain_context_mapping_one()
1990 		info = iommu_support_dev_iotlb(domain, iommu, bus, devfn);  in domain_context_mapping_one()
2020 					   (((u16)bus) << 8) | devfn,  in domain_context_mapping_one()
2056 	u8 bus, devfn;  in domain_context_mapping()  local
2059 	iommu = device_to_iommu(dev, &bus, &devfn);  in domain_context_mapping()
2064 		return domain_context_mapping_one(domain, iommu, bus, devfn);  in domain_context_mapping()
2084 	u8 bus, devfn;  in domain_context_mapped()  local
2086 	iommu = device_to_iommu(dev, &bus, &devfn);  in domain_context_mapped()
2091 		return device_context_mapped(iommu, bus, devfn);  in domain_context_mapped()
2257 static void domain_context_clear_one(struct intel_iommu *iommu, u8 bus, u8 devfn)  in domain_context_clear_one()  argument
2262 	clear_context_table(iommu, bus, devfn);  in domain_context_clear_one()
2304 dmar_search_domain_by_dev_info(int segment, int bus, int devfn)  in dmar_search_domain_by_dev_info()  argument
2310 		    info->devfn == devfn)  in dmar_search_domain_by_dev_info()
2317 						    int bus, int devfn,  in dmar_insert_one_dev_info()  argument
2331 	info->devfn = devfn;  in dmar_insert_one_dev_info()
2366 		info2 = dmar_search_domain_by_dev_info(iommu->segment, bus, devfn);  in dmar_insert_one_dev_info()
2419 	u8 bus, devfn;  in get_domain_for_dev()  local
2425 	iommu = device_to_iommu(dev, &bus, &devfn);  in get_domain_for_dev()
2429 	req_id = ((u16)bus << 8) | devfn;  in get_domain_for_dev()
2475 	tmp = dmar_insert_one_dev_info(iommu, bus, devfn, dev, domain);  in get_domain_for_dev()
2655 	u8 bus, devfn;  in domain_add_dev_info()  local
2657 	iommu = device_to_iommu(dev, &bus, &devfn);  in domain_add_dev_info()
2661 	ndomain = dmar_insert_one_dev_info(iommu, bus, devfn, dev, domain);  in domain_add_dev_info()
2894 	int tbl_idx, pos = 0, idx, devfn, ret = 0, did;  in copy_context_table()  local
2903 	for (devfn = 0; devfn < 256; devfn++) {  in copy_context_table()
2905 		idx = (ext ? devfn * 2 : devfn) % 256;  in copy_context_table()
2920 			if (devfn < 0x80)  in copy_context_table()
2926 				if (ext && devfn == 0) {  in copy_context_table()
2928 					devfn = 0x7f;  in copy_context_table()
4790 	u8 bus, devfn;  in intel_iommu_attach_device()  local
4813 	iommu = device_to_iommu(dev, &bus, &devfn);  in intel_iommu_attach_device()
4960 	u8 bus, devfn;  in intel_iommu_add_device()  local
4962 	iommu = device_to_iommu(dev, &bus, &devfn);  in intel_iommu_add_device()
4980 	u8 bus, devfn;  in intel_iommu_remove_device()  local
4982 	iommu = device_to_iommu(dev, &bus, &devfn);  in intel_iommu_remove_device()
5013 	context = iommu_context_addr(iommu, info->bus, info->devfn, 0);  in intel_iommu_enable_pasid()
5020 	sdev->sid = PCI_DEVID(info->bus, info->devfn);  in intel_iommu_enable_pasid()
5076 	u8 bus, devfn;  in intel_svm_device_to_iommu()  local
5084 	iommu = device_to_iommu(dev, &bus, &devfn);  in intel_svm_device_to_iommu()