diff options
| -rw-r--r-- | include/linux/io-pgtable.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/io-pgtable.h b/include/linux/io-pgtable.h index 4d40dfa75b55..9391c5fa71e6 100644 --- a/include/linux/io-pgtable.h +++ b/include/linux/io-pgtable.h @@ -144,6 +144,7 @@ struct io_pgtable_cfg { * * @map: Map a physically contiguous memory region. * @unmap: Unmap a physically contiguous memory region. + * @unmap_pages: Unmap a range of virtually contiguous pages of the same size. * @iova_to_phys: Translate iova to physical address. * * These functions map directly onto the iommu_ops member functions with @@ -154,6 +155,9 @@ struct io_pgtable_ops { phys_addr_t paddr, size_t size, int prot, gfp_t gfp); size_t (*unmap)(struct io_pgtable_ops *ops, unsigned long iova, size_t size, struct iommu_iotlb_gather *gather); + size_t (*unmap_pages)(struct io_pgtable_ops *ops, unsigned long iova, + size_t pgsize, size_t pgcount, + struct iommu_iotlb_gather *gather); phys_addr_t (*iova_to_phys)(struct io_pgtable_ops *ops, unsigned long iova); }; |