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authorMichael J. Chudobiak <mjc@avtechpulse.com>2016-04-25 10:00:44 -0400
committerMichael J. Chudobiak <mjc@avtechpulse.com>2016-04-25 10:00:44 -0400
commita1df417e74aa6dae7352dc8cbb0ad471af5b7c69 (patch)
treec34b2311e37ea31db153c90cb8f4570374d05e78 /linux/kernel/time/timekeeping_internal.h
initial Olimex linux tree from Daniel, originally Feb 3, 2016
Diffstat (limited to 'linux/kernel/time/timekeeping_internal.h')
-rw-r--r--linux/kernel/time/timekeeping_internal.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/linux/kernel/time/timekeeping_internal.h b/linux/kernel/time/timekeeping_internal.h
new file mode 100644
index 00000000..4ea005a7
--- /dev/null
+++ b/linux/kernel/time/timekeeping_internal.h
@@ -0,0 +1,29 @@
+#ifndef _TIMEKEEPING_INTERNAL_H
+#define _TIMEKEEPING_INTERNAL_H
+/*
+ * timekeeping debug functions
+ */
+#include <linux/clocksource.h>
+#include <linux/time.h>
+
+#ifdef CONFIG_DEBUG_FS
+extern void tk_debug_account_sleep_time(struct timespec64 *t);
+#else
+#define tk_debug_account_sleep_time(x)
+#endif
+
+#ifdef CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE
+static inline cycle_t clocksource_delta(cycle_t now, cycle_t last, cycle_t mask)
+{
+ cycle_t ret = (now - last) & mask;
+
+ return (s64) ret > 0 ? ret : 0;
+}
+#else
+static inline cycle_t clocksource_delta(cycle_t now, cycle_t last, cycle_t mask)
+{
+ return (now - last) & mask;
+}
+#endif
+
+#endif /* _TIMEKEEPING_INTERNAL_H */