diff options
Diffstat (limited to 'drivers/iommu/iommu.c')
| -rw-r--r-- | drivers/iommu/iommu.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index c7ed334..f83d762 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -1562,6 +1562,24 @@ void iommu_put_resv_regions(struct device *dev, struct list_head *list) ops->put_resv_regions(dev, list); } +struct iommu_resv_region *iommu_alloc_resv_region(phys_addr_t start, + size_t length, + int prot, int type) +{ + struct iommu_resv_region *region; + + region = kzalloc(sizeof(*region), GFP_KERNEL); + if (!region) + return NULL; + + INIT_LIST_HEAD(®ion->list); + region->start = start; + region->length = length; + region->prot = prot; + region->type = type; + return region; +} + /* Request that a device is direct mapped by the IOMMU */ int iommu_request_dm_for_dev(struct device *dev) { |