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-rw-r--r--kernel/smpboot.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/kernel/smpboot.h b/kernel/smpboot.h
new file mode 100644
index 0000000000..34dd3d7ba4
--- /dev/null
+++ b/kernel/smpboot.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef SMPBOOT_H
+#define SMPBOOT_H
+
+struct task_struct;
+
+#ifdef CONFIG_GENERIC_SMP_IDLE_THREAD
+struct task_struct *idle_thread_get(unsigned int cpu);
+void idle_thread_set_boot_cpu(void);
+void idle_threads_init(void);
+#else
+static inline struct task_struct *idle_thread_get(unsigned int cpu) { return NULL; }
+static inline void idle_thread_set_boot_cpu(void) { }
+static inline void idle_threads_init(void) { }
+#endif
+
+int smpboot_create_threads(unsigned int cpu);
+int smpboot_park_threads(unsigned int cpu);
+int smpboot_unpark_threads(unsigned int cpu);
+
+void __init cpuhp_threads_init(void);
+
+#endif