+#if !defined(CONFIG_PA20) && (defined(CONFIG_IOMMU_CCIO) || defined(CONFIG_IOMMU_SBA))
+int parisc_bus_is_phys __read_mostly = 1; /* Assume no IOMMU is present */
+EXPORT_SYMBOL(parisc_bus_is_phys);
+#endif
+
+/* This sets the vmerge boundary and size, it's here because it has to
+ * be available on all platforms (zero means no-virtual merging) */
+unsigned long parisc_vmerge_boundary = 0;
+unsigned long parisc_vmerge_max_size = 0;