22 struct s390_domain {  struct
35 static struct s390_domain *to_s390_domain(struct iommu_domain *dom)  in to_s390_domain()  argument
37 	return container_of(dom, struct s390_domain, domain);  in to_s390_domain()
54 	struct s390_domain *s390_domain;  in s390_domain_alloc()  local
59 	s390_domain = kzalloc(sizeof(*s390_domain), GFP_KERNEL);  in s390_domain_alloc()
60 	if (!s390_domain)  in s390_domain_alloc()
63 	s390_domain->dma_table = dma_alloc_cpu_table();  in s390_domain_alloc()
64 	if (!s390_domain->dma_table) {  in s390_domain_alloc()
65 		kfree(s390_domain);  in s390_domain_alloc()
69 	spin_lock_init(&s390_domain->dma_table_lock);  in s390_domain_alloc()
70 	spin_lock_init(&s390_domain->list_lock);  in s390_domain_alloc()
71 	INIT_LIST_HEAD(&s390_domain->devices);  in s390_domain_alloc()
73 	return &s390_domain->domain;  in s390_domain_alloc()
78 	struct s390_domain *s390_domain = to_s390_domain(domain);  in s390_domain_free()  local
80 	dma_cleanup_tables(s390_domain->dma_table);  in s390_domain_free()
81 	kfree(s390_domain);  in s390_domain_free()
87 	struct s390_domain *s390_domain = to_s390_domain(domain);  in s390_iommu_attach_device()  local
103 	zdev->dma_table = s390_domain->dma_table;  in s390_iommu_attach_device()
110 	spin_lock_irqsave(&s390_domain->list_lock, flags);  in s390_iommu_attach_device()
112 	if (list_empty(&s390_domain->devices)) {  in s390_iommu_attach_device()
120 		spin_unlock_irqrestore(&s390_domain->list_lock, flags);  in s390_iommu_attach_device()
124 	zdev->s390_domain = s390_domain;  in s390_iommu_attach_device()
125 	list_add(&domain_device->list, &s390_domain->devices);  in s390_iommu_attach_device()
126 	spin_unlock_irqrestore(&s390_domain->list_lock, flags);  in s390_iommu_attach_device()
140 	struct s390_domain *s390_domain = to_s390_domain(domain);  in s390_iommu_detach_device()  local
149 	spin_lock_irqsave(&s390_domain->list_lock, flags);  in s390_iommu_detach_device()
150 	list_for_each_entry_safe(domain_device, tmp, &s390_domain->devices,  in s390_iommu_detach_device()
159 	spin_unlock_irqrestore(&s390_domain->list_lock, flags);  in s390_iommu_detach_device()
162 		zdev->s390_domain = NULL;  in s390_iommu_detach_device()
202 	if (zdev && zdev->s390_domain) {  in s390_iommu_remove_device()
211 static int s390_iommu_update_trans(struct s390_domain *s390_domain,  in s390_iommu_update_trans()  argument
222 	if (dma_addr < s390_domain->domain.geometry.aperture_start ||  in s390_iommu_update_trans()
223 	    dma_addr + size > s390_domain->domain.geometry.aperture_end)  in s390_iommu_update_trans()
230 	spin_lock_irqsave(&s390_domain->dma_table_lock, irq_flags);  in s390_iommu_update_trans()
232 		entry = dma_walk_cpu_trans(s390_domain->dma_table, dma_addr);  in s390_iommu_update_trans()
242 	spin_lock(&s390_domain->list_lock);  in s390_iommu_update_trans()
243 	list_for_each_entry(domain_device, &s390_domain->devices, list) {  in s390_iommu_update_trans()
249 	spin_unlock(&s390_domain->list_lock);  in s390_iommu_update_trans()
257 			entry = dma_walk_cpu_trans(s390_domain->dma_table,  in s390_iommu_update_trans()
264 	spin_unlock_irqrestore(&s390_domain->dma_table_lock, irq_flags);  in s390_iommu_update_trans()
272 	struct s390_domain *s390_domain = to_s390_domain(domain);  in s390_iommu_map()  local
281 	rc = s390_iommu_update_trans(s390_domain, (unsigned long) paddr, iova,  in s390_iommu_map()
290 	struct s390_domain *s390_domain = to_s390_domain(domain);  in s390_iommu_iova_to_phys()  local
302 	rto = s390_domain->dma_table;  in s390_iommu_iova_to_phys()
304 	spin_lock_irqsave(&s390_domain->dma_table_lock, flags);  in s390_iommu_iova_to_phys()
313 	spin_unlock_irqrestore(&s390_domain->dma_table_lock, flags);  in s390_iommu_iova_to_phys()
321 	struct s390_domain *s390_domain = to_s390_domain(domain);  in s390_iommu_unmap()  local
330 	rc = s390_iommu_update_trans(s390_domain, (unsigned long) paddr, iova,  in s390_iommu_unmap()