From b04fd3b5e7868153ed60f468c0eaf28356154804 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Fri, 23 Jan 2015 22:02:51 +0100 Subject: header: add linux/timecounter.h This file was newly added to the kernel. It was extracted from linux/clocksource.h. Signed-off-by: Hauke Mehrtens --- 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 00000000..92fafb9f --- /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 +#else +#include + +/** + * 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 */ -- cgit v1.2.3