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-rw-r--r--sys/compat/linuxkpi/common/include/linux/jiffies.h98
1 files changed, 98 insertions, 0 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/jiffies.h b/sys/compat/linuxkpi/common/include/linux/jiffies.h
new file mode 100644
index 000000000000..f7bc52916340
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+++ b/sys/compat/linuxkpi/common/include/linux/jiffies.h
@@ -0,0 +1,98 @@
+/*-
+ * Copyright (c) 2010 Isilon Systems, Inc.
+ * Copyright (c) 2010 iX Systems, Inc.
+ * Copyright (c) 2010 Panasas, Inc.
+ * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
+ * 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_JIFFIES_H_
+#define _LINUX_JIFFIES_H_
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/time.h>
+
+#include <sys/time.h>
+#include <sys/kernel.h>
+#include <sys/limits.h>
+
+static inline int
+msecs_to_jiffies(int msec)
+{
+ struct timeval tv;
+
+ tv.tv_sec = msec / 1000;
+ tv.tv_usec = (msec % 1000) * 1000;
+ return (tvtohz(&tv) - 1);
+}
+
+#define jiffies ticks
+#define jiffies_64 ticks
+#define jiffies_to_msecs(x) (((int64_t)(x)) * 1000 / hz)
+
+#define MAX_JIFFY_OFFSET ((INT_MAX >> 1) - 1)
+
+#define time_after(a, b) ((int)((b) - (a)) < 0)
+#define time_before(a, b) time_after(b,a)
+#define time_after_eq(a, b) ((int)((a) - (b)) >= 0)
+#define time_before_eq(a, b) time_after_eq(b, a)
+#define time_in_range(a,b,c) \
+ (time_after_eq(a,b) && time_before_eq(a,c))
+
+#define HZ hz
+
+static inline int
+timespec_to_jiffies(const struct timespec *ts)
+{
+ u64 result;
+
+ result = ((u64)hz * ts->tv_sec) +
+ (((u64)hz * ts->tv_nsec + NSEC_PER_SEC - 1) / NSEC_PER_SEC);
+ if (result > MAX_JIFFY_OFFSET)
+ result = MAX_JIFFY_OFFSET;
+
+ return ((int)result);
+}
+
+static inline int
+usecs_to_jiffies(const unsigned int u)
+{
+ u64 result;
+
+ result = ((u64)u * hz + 1000000 - 1) / 1000000;
+ if (result > MAX_JIFFY_OFFSET)
+ result = MAX_JIFFY_OFFSET;
+
+ return ((int)result);
+}
+
+static inline u64
+get_jiffies_64(void)
+{
+ return ((u64)(unsigned)ticks);
+}
+
+#endif /* _LINUX_JIFFIES_H_ */