+#ifdef CONFIG_X86_64
+
+/* all of these masks are initialized in setup_cpu_local_masks() */
+cpumask_var_t cpu_callin_mask;
+cpumask_var_t cpu_callout_mask;
+cpumask_var_t cpu_initialized_mask;
+
+/* representing cpus for which sibling maps can be computed */
+cpumask_var_t cpu_sibling_setup_mask;
+
+#else /* CONFIG_X86_32 */
+
+cpumask_t cpu_callin_map;
+cpumask_t cpu_callout_map;
+cpumask_t cpu_initialized;
+cpumask_t cpu_sibling_setup_map;
+
+#endif /* CONFIG_X86_32 */
+
+