diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index 76381e14e800c7..0ebae6e4c19dd7 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -687,7 +687,7 @@ void iommu_table_clear(struct iommu_table *tbl)
 void iommu_table_reserve_pages(struct iommu_table *tbl,
 		unsigned long res_start, unsigned long res_end)
 {
-	int i;
+	unsigned long i;
 
 	WARN_ON_ONCE(res_end < res_start);
 	/*
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 534cd159e9ab4c..29f1a0cc59cd59 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -1650,7 +1650,8 @@ static bool enable_ddw(struct pci_dev *dev, struct device_node *pdn)
 		iommu_table_setparms_common(newtbl, pci->phb->bus->number, create.liobn,
 					    dynamic_addr, dynamic_len, page_shift, NULL,
 					    &iommu_table_lpar_multi_ops);
-		iommu_init_table(newtbl, pci->phb->node, start, end);
+		iommu_init_table(newtbl, pci->phb->node,
+				 start >> page_shift, end >> page_shift);
 
 		pci->table_group->tables[default_win_removed ? 0 : 1] = newtbl;
 
@@ -2065,7 +2066,9 @@ static long spapr_tce_create_table(struct iommu_table_group *table_group, int nu
 							    offset, 1UL << window_shift,
 							    IOMMU_PAGE_SHIFT_4K, NULL,
 							    &iommu_table_lpar_multi_ops);
-				iommu_init_table(tbl, pci->phb->node, start, end);
+				iommu_init_table(tbl, pci->phb->node,
+						 start >> IOMMU_PAGE_SHIFT_4K,
+						 end >> IOMMU_PAGE_SHIFT_4K);
 
 				table_group->tables[0] = tbl;
 
@@ -2136,7 +2139,7 @@ static long spapr_tce_create_table(struct iommu_table_group *table_group, int nu
 	/* New table for using DDW instead of the default DMA window */
 	iommu_table_setparms_common(tbl, pci->phb->bus->number, create.liobn, win_addr,
 				    1UL << len, page_shift, NULL, &iommu_table_lpar_multi_ops);
-	iommu_init_table(tbl, pci->phb->node, start, end);
+	iommu_init_table(tbl, pci->phb->node, start >> page_shift, end >> page_shift);
 
 	pci->table_group->tables[num] = tbl;
 	set_iommu_table_base(&pdev->dev, tbl);