diff options
author | Hauke Mehrtens <hauke@hauke-m.de> | 2015-01-23 22:02:51 +0100 |
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committer | Hauke Mehrtens <hauke@hauke-m.de> | 2015-01-24 00:16:38 +0100 |
commit | b04fd3b5e7868153ed60f468c0eaf28356154804 (patch) | |
tree | cc6bc5b24cad30469bc52bbf3695b52da94ece73 /backport | |
parent | 2917b32e70d29471e52945e7d091ee7fe612f55b (diff) |
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 <hauke@hauke-m.de>
Diffstat (limited to 'backport')
-rw-r--r-- | backport/backport-include/linux/timecounter.h | 25 |
1 files changed, 25 insertions, 0 deletions
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 <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 */ |