1 files changed, 7 insertions, 1 deletions

diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index f9c1b6d0f2e4..f28dff313b07 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -81,6 +81,7 @@ struct iommu_domain {
         iommu_fault_handler_t handler;
         void *handler_token;
         struct iommu_domain_geometry geometry;
+        void *iova_cookie;
 };
 
 enum iommu_cap {
@@ -167,7 +168,7 @@ struct iommu_ops {
         phys_addr_t (*iova_to_phys)(struct iommu_domain *domain, dma_addr_t iova);
         int (*add_device)(struct device *dev);
         void (*remove_device)(struct device *dev);
-        int (*device_group)(struct device *dev, unsigned int *groupid);
+        struct iommu_group *(*device_group)(struct device *dev);
         int (*domain_get_attr)(struct iommu_domain *domain,
                                enum iommu_attr attr, void *data);
         int (*domain_set_attr)(struct iommu_domain *domain,
@@ -316,6 +317,11 @@ static inline size_t iommu_map_sg(struct iommu_domain *domain,
         return domain->ops->map_sg(domain, iova, sg, nents, prot);
 }
 
+/* PCI device grouping function */
+extern struct iommu_group *pci_device_group(struct device *dev);
+/* Generic device grouping function */
+extern struct iommu_group *generic_device_group(struct device *dev);
+
 #else /* CONFIG_IOMMU_API */
 
 struct iommu_ops {};