This file was newly added to the kernel. It was extracted from
linux/clocksource.h.
Signed-off-by: Hauke Mehrtens <hauke@xxxxxxxxxx>
---
backport/backport-include/linux/timecounter.h | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
create mode 100644 backport/backport-include/linux/timecounter.h
diff --git a/backport/backport-include/linux/timecounter.h b/backport/backport-include/linux/timecounter.h
new file mode 100644
index 0000000..92fafb9
--- /dev/null
+++ b/backport/backport-include/linux/timecounter.h
@@ -0,0 +1,25 @@
+#ifndef __BACKPORT_LINUX_TIMECOUNTER_H
+#define __BACKPORT_LINUX_TIMECOUNTER_H
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,20,0)
+#include_next <linux/timecounter.h>
+#else
+#include <linux/clocksource.h>
+
+/**
+ * timecounter_adjtime - Shifts the time of the clock.
+ * @delta: Desired change in nanoseconds.
+ */
+#define timecounter_adjtime LINUX_BACKPORT(timecounter_adjtime)
+static inline void timecounter_adjtime(struct timecounter *tc, s64 delta)
+{
+ tc->nsec += delta;
+}
+#endif
+
+#ifndef CYCLECOUNTER_MASK
+/* simplify initialization of mask field */
+#define CYCLECOUNTER_MASK(bits) (cycle_t)((bits) < 64 ? ((1ULL<<(bits))-1) : -1)
+#endif
+
+#endif /* __BACKPORT_LINUX_TIMECOUNTER_H */
--
1.9.1
--
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