extern int iommu_reserve(struct pci_iommu_arena *, long, long);
extern int iommu_release(struct pci_iommu_arena *, long, long);
-extern int iommu_bind(struct pci_iommu_arena *, long, long, unsigned long *);
+extern int iommu_bind(struct pci_iommu_arena *, long, long, struct page **);
extern int iommu_unbind(struct pci_iommu_arena *, long, long);