diff options
| -rw-r--r-- | drivers/iommu/iommu.c | 15 | ||||
| -rw-r--r-- | include/linux/iommu.h | 2 |
2 files changed, 17 insertions, 0 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index fdea700ca12c..a80c9c5c2650 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -728,6 +728,21 @@ static int get_pci_alias_or_group(struct pci_dev *pdev, u16 alias, void *opaque) } /* + * Generic device_group call-back function. It just allocates one + * iommu-group per device. + */ +struct iommu_group *generic_device_group(struct device *dev) +{ + struct iommu_group *group; + + group = iommu_group_alloc(); + if (IS_ERR(group)) + return NULL; + + return group; +} + +/* * Use standard PCI bus topology, isolation features, and DMA alias quirks * to find or create an IOMMU group for a device. */ diff --git a/include/linux/iommu.h b/include/linux/iommu.h index a1a06639a64a..f28dff313b07 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -319,6 +319,8 @@ static inline size_t iommu_map_sg(struct iommu_domain *domain, /* 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 */ |