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-rw-r--r--sys/compat/linuxkpi/common/include/linux/ktime.h135
1 files changed, 135 insertions, 0 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/ktime.h b/sys/compat/linuxkpi/common/include/linux/ktime.h
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+++ b/sys/compat/linuxkpi/common/include/linux/ktime.h
@@ -0,0 +1,135 @@
+/*-
+ * Copyright (c) 2014-2015 Mellanox Technologies, Ltd.
+ * Copyright (c) 2015 Fran├žois Tigeot
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice unmodified, this list of conditions, and the following
+ * disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+#ifndef _LINUX_KTIME_H
+#define _LINUX_KTIME_H
+
+#include <linux/types.h>
+#include <linux/time.h>
+#include <linux/jiffies.h>
+
+#define ktime_get_ts(x) getnanouptime(x)
+
+/* time values in nanoseconds */
+union ktime {
+ int64_t tv64;
+};
+
+typedef union ktime ktime_t;
+
+#define KTIME_MAX ((s64)~((u64)1 << 63))
+#define KTIME_SEC_MAX (KTIME_MAX / NSEC_PER_SEC)
+
+static inline int64_t
+ktime_to_ns(ktime_t kt)
+{
+ return kt.tv64;
+}
+
+static inline struct timeval
+ktime_to_timeval(ktime_t kt)
+{
+ return ns_to_timeval(kt.tv64);
+}
+
+static inline ktime_t
+ktime_add_ns(ktime_t kt, int64_t ns)
+{
+ ktime_t res;
+
+ res.tv64 = kt.tv64 + ns;
+ return kt;
+}
+
+static inline ktime_t
+ktime_sub_ns(ktime_t kt, int64_t ns)
+{
+ ktime_t res;
+
+ res.tv64 = kt.tv64 - ns;
+ return kt;
+}
+
+static inline ktime_t
+ktime_set(const long secs, const unsigned long nsecs)
+{
+ ktime_t retval = { (s64)secs * NSEC_PER_SEC + (s64)nsecs };
+ return (retval);
+}
+
+static inline ktime_t
+ktime_sub(ktime_t lhs, ktime_t rhs)
+{
+ lhs.tv64 -= rhs.tv64;
+ return (lhs);
+}
+
+static inline ktime_t
+ktime_add(ktime_t lhs, ktime_t rhs)
+{
+ lhs.tv64 += rhs.tv64;
+ return (lhs);
+}
+
+static inline ktime_t
+timespec_to_ktime(struct timespec ts)
+{
+ return (ktime_set(ts.tv_sec, ts.tv_nsec));
+}
+
+static inline ktime_t
+timeval_to_ktime(struct timeval tv)
+{
+ return (ktime_set(tv.tv_sec, tv.tv_usec * NSEC_PER_USEC));
+}
+
+#define ktime_to_timespec(kt) ns_to_timespec((kt).tv64)
+#define ktime_to_timeval(kt) ns_to_timeval((kt).tv64)
+#define ktime_to_ns(kt) ((kt).tv64)
+
+static inline s64
+ktime_get_ns(void)
+{
+ struct timespec ts;
+ ktime_t kt;
+
+ ktime_get_ts(&ts);
+ kt = timespec_to_ktime(ts);
+ return (ktime_to_ns(kt));
+}
+
+static inline ktime_t
+ktime_get(void)
+{
+ struct timespec ts;
+
+ ktime_get_ts(&ts);
+ return (timespec_to_ktime(ts));
+}
+
+#endif /* _LINUX_KTIME_H */