iommu/intel/iommu.c

101 	if (*rid_lhs < PCI_DEVID(info->bus, info->devfn))
104 	if (*rid_lhs > PCI_DEVID(info->bus, info->devfn))
114 	u16 key = PCI_DEVID(info->bus, info->devfn);
498 struct context_entry *iommu_context_addr(struct intel_iommu *iommu, u8 bus,
501 	struct root_entry *root = &iommu->root_entry[bus];
509 	if (!alloc && context_copied(iommu, bus, devfn))
559 	    pbridge->subordinate->number <= pdev->bus->number &&
560 	    pbridge->subordinate->busn_res.end >= pdev->bus->number)
577 	rc = pci_bus_read_config_dword(pdev->bus, PCI_DEVFN(0, 0), 0xb0, &vtbar);
613 static struct intel_iommu *device_lookup_iommu(struct device *dev, u8 *bus, u8 *devfn)
634 		segment = pci_domain_nr(pdev->bus);
653 				if (bus && devfn) {
654 					*bus = drhd->devices[i].bus;
666 			if (bus && devfn) {
667 				*bus = pdev->bus->number;
717 			 u8 bus, u8 devfn, struct dma_pte *parent, int level)
749 	u8 bus = source_id >> 8;
755 	rt_entry = &iommu->root_entry[bus];
768 	ctx_entry = iommu_context_addr(iommu, bus, devfn, 0);
818 	pgtable_walk(iommu, addr >> VTD_PAGE_SHIFT, bus, devfn, pgtable, level);
1255 		       struct intel_iommu *iommu, u8 bus, u8 devfn)
1262 		if (info->iommu == iommu && info->bus == bus &&
1370 	sid = info->bus << 8 | info->devfn;
1655 				      u8 bus, u8 devfn)
1658 			domain_lookup_dev_info(domain, iommu, bus, devfn);
1669 		bus, PCI_SLOT(devfn), PCI_FUNC(devfn));
1673 	context = iommu_context_addr(iommu, bus, devfn, 1);
1678 	if (context_present(context) && !context_copied(iommu, bus, devfn))
1690 	if (context_copied(iommu, bus, devfn)) {
1695 						   (((u16)bus) << 8) | devfn,
1702 		clear_context_copied(iommu, bus, devfn);
1750 					   (((u16)bus) << 8) | devfn,
1782 	u8 bus = info->bus, devfn = info->devfn;
1785 		return domain_context_mapping_one(domain, iommu, bus, devfn);
1958 static void domain_context_clear_one(struct device_domain_info *info, u8 bus, u8 devfn)
1965 	context = iommu_context_addr(iommu, bus, devfn, 0);
1978 				   (((u16)bus) << 8) | devfn,
2241 			      int bus, bool ext)
2249 	tbl_idx = ext ? bus * 2 : bus;
2307 		set_context_copied(iommu, bus, devfn);
2329 	int bus, ret;
2364 	for (bus = 0; bus < 256; bus++) {
2365 		ret = copy_context_table(iommu, &old_rt[bus],
2366 					 ctxt_tbls, bus, ext);
2368 			pr_err("%s: Failed to copy context table for bus %d\n",
2369 				iommu->name, bus);
2377 	for (bus = 0; bus < 256; bus++) {
2378 		int idx = ext ? bus * 2 : bus;
2383 			iommu->root_entry[bus].lo = val;
2390 		iommu->root_entry[bus].hi = val;
3045 		if (satc->segment != pci_domain_nr(dev->bus))
3060 	struct pci_bus *bus;
3079 	for (bus = dev->bus; bus; bus = bus->parent) {
3080 		bridge = bus->self;
3096 		if (atsr->segment != pci_domain_nr(dev->bus))
3376 			if (dev->bus != &acpi_bus_type)
3440 	 * The bus notifier takes the dmar_global_lock, so lockdep will
3563 		domain_context_clear_one(info, info->bus, info->devfn);
3702 	domain = iommu_domain_alloc(dev->bus);
3773 	    context_copied(iommu, info->bus, info->devfn))
4006 	u8 bus, devfn;
4009 	iommu = device_lookup_iommu(dev, &bus, &devfn);
4018 		info->bus = pdev->bus->number;
4020 		info->segment = pci_domain_nr(pdev->bus);
4022 		info->bus = bus;
4075 		if (!context_copied(iommu, info->bus, info->devfn)) {
4106 	    !context_copied(iommu, info->bus, info->devfn))
4385 	if (context_copied(iommu, info->bus, info->devfn))
4785 	/* Zero TLB entries? You get to ride the short bus to school. */
4835 	sid = PCI_DEVID(info->bus, info->devfn);