--- /dev/null
+/* the upper-most page table pointer */
+
+#ifdef CONFIG_MMU
+
+extern pmd_t *top_pmd;
+
+#define TOP_PTE(x) pte_offset_kernel(top_pmd, x)
+
+static inline pmd_t *pmd_off(pgd_t *pgd, unsigned long virt)
+{
+ return pmd_offset(pgd, virt);
+}
+
+static inline pmd_t *pmd_off_k(unsigned long virt)
+{
+ return pmd_off(pgd_offset_k(virt), virt);
+}
+
+#endif
+
+struct map_desc;
+struct meminfo;
+struct pglist_data;
+
+void __init create_mapping(struct map_desc *md);
+void __init bootmem_init(struct meminfo *mi);
+void reserve_node_zero(struct pglist_data *pgdat);