--- zzzz-none-000/linux-2.6.19.2/arch/sparc64/kernel/pci_iommu.c	2007-01-10 19:10:37.000000000 +0000
+++ davinci-8020-5505/linux-2.6.19.2/arch/sparc64/kernel/pci_iommu.c	2007-01-11 07:38:19.000000000 +0000
@@ -281,7 +281,7 @@
 
 	spin_lock_irqsave(&iommu->lock, flags);
 
-	free_npages(iommu, dvma - iommu->page_table_map_base, npages);
+	free_npages(iommu, dvma, npages);
 
 	spin_unlock_irqrestore(&iommu->lock, flags);