+static void tce_iommu_release_ownership(struct tce_container *container,
+ struct iommu_table_group *table_group)
+{
+ int i;
+
+ for (i = 0; i < IOMMU_TABLE_GROUP_MAX_TABLES; ++i) {
+ struct iommu_table *tbl = table_group->tables[i];
+
+ if (!tbl)
+ continue;
+
+ tce_iommu_clear(container, tbl, tbl->it_offset, tbl->it_size);
+ if (tbl->it_map)
+ iommu_release_ownership(tbl);
+ }
+}
+
+static int tce_iommu_take_ownership(struct tce_container *container,
+ struct iommu_table_group *table_group)
+{
+ int i, j, rc = 0;
+
+ for (i = 0; i < IOMMU_TABLE_GROUP_MAX_TABLES; ++i) {
+ struct iommu_table *tbl = table_group->tables[i];
+
+ if (!tbl || !tbl->it_map)
+ continue;
+
+ rc = iommu_take_ownership(tbl);
+ if (rc) {
+ for (j = 0; j < i; ++j)
+ iommu_release_ownership(
+ table_group->tables[j]);
+
+ return rc;
+ }
+ }
+
+ return 0;
+}
+
+static void tce_iommu_release_ownership_ddw(struct tce_container *container,
+ struct iommu_table_group *table_group)
+{
+ table_group->ops->release_ownership(table_group);
+}
+
+static long tce_iommu_take_ownership_ddw(struct tce_container *container,
+ struct iommu_table_group *table_group)
+{
+ table_group->ops->take_ownership(table_group);
+
+ return 0;
+}
+