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-rw-r--r--kernel/include/linux/sched_clock.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/kernel/include/linux/sched_clock.h b/kernel/include/linux/sched_clock.h
new file mode 100644
index 000000000..efa931c5c
--- /dev/null
+++ b/kernel/include/linux/sched_clock.h
@@ -0,0 +1,20 @@
+/*
+ * sched_clock.h: support for extending counters to full 64-bit ns counter
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef LINUX_SCHED_CLOCK
+#define LINUX_SCHED_CLOCK
+
+#ifdef CONFIG_GENERIC_SCHED_CLOCK
+extern void sched_clock_postinit(void);
+#else
+static inline void sched_clock_postinit(void) { }
+#endif
+
+extern void sched_clock_register(u64 (*read)(void), int bits,
+ unsigned long rate);
+
+#endif