+/* WARNING: The definitions below must match exactly to sizeof(pte_t)
+ * etc
+ */
+#ifdef __LP64__
+#define BITS_PER_PTE_ENTRY 3
+#define BITS_PER_PMD_ENTRY 2
+#define BITS_PER_PGD_ENTRY 2
+#else
+#define BITS_PER_PTE_ENTRY 3
+#define BITS_PER_PMD_ENTRY 2
+#define BITS_PER_PGD_ENTRY BITS_PER_PMD_ENTRY
+#endif
+#define PGD_ENTRY_SIZE (1UL << BITS_PER_PGD_ENTRY)
+#define PMD_ENTRY_SIZE (1UL << BITS_PER_PMD_ENTRY)
+#define PTE_ENTRY_SIZE (1UL << BITS_PER_PTE_ENTRY)
+