ktime.h revision 331756
1258945Sroberto/*- 2258945Sroberto * Copyright (c) 2018 Limelight Networks, Inc. 3258945Sroberto * Copyright (c) 2014-2018 Mellanox Technologies, Ltd. 4258945Sroberto * Copyright (c) 2015 Fran��ois Tigeot 5258945Sroberto * All rights reserved. 6258945Sroberto * 7258945Sroberto * Redistribution and use in source and binary forms, with or without 8258945Sroberto * modification, are permitted provided that the following conditions 9258945Sroberto * are met: 10258945Sroberto * 1. Redistributions of source code must retain the above copyright 11258945Sroberto * notice unmodified, this list of conditions, and the following 12258945Sroberto * disclaimer. 13258945Sroberto * 2. Redistributions in binary form must reproduce the above copyright 14258945Sroberto * notice, this list of conditions and the following disclaimer in the 15258945Sroberto * documentation and/or other materials provided with the distribution. 16258945Sroberto * 17258945Sroberto * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18258945Sroberto * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19258945Sroberto * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20258945Sroberto * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21258945Sroberto * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22258945Sroberto * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23258945Sroberto * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24258945Sroberto * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25258945Sroberto * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26258945Sroberto * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27258945Sroberto * 28258945Sroberto * $FreeBSD: stable/11/sys/compat/linuxkpi/common/include/linux/ktime.h 331756 2018-03-30 02:04:46Z emaste $ 29258945Sroberto */ 30258945Sroberto 31258945Sroberto#ifndef _LINUX_KTIME_H 32258945Sroberto#define _LINUX_KTIME_H 33258945Sroberto 34258945Sroberto#include <linux/types.h> 35258945Sroberto#include <linux/time.h> 36258945Sroberto#include <linux/jiffies.h> 37258945Sroberto 38258945Sroberto#define ktime_get_ts(x) getnanouptime(x) 39258945Sroberto 40258945Sroberto/* time values in nanoseconds */ 41258945Srobertotypedef s64 ktime_t; 42258945Sroberto 43280849Scy#define KTIME_MAX ((s64)~((u64)1 << 63)) 44258945Sroberto#define KTIME_SEC_MAX (KTIME_MAX / NSEC_PER_SEC) 45258945Sroberto 46258945Srobertostatic inline int64_t 47258945Srobertoktime_to_ns(ktime_t kt) 48258945Sroberto{ 49258945Sroberto return (kt); 50258945Sroberto} 51258945Sroberto 52258945Srobertostatic inline ktime_t 53258945Srobertons_to_ktime(uint64_t nsec) 54258945Sroberto{ 55258945Sroberto return (nsec); 56258945Sroberto} 57258945Sroberto 58258945Srobertostatic inline int64_t 59258945Srobertoktime_divns(const ktime_t kt, int64_t div) 60258945Sroberto{ 61258945Sroberto return (kt / div); 62258945Sroberto} 63258945Sroberto 64258945Srobertostatic inline int64_t 65258945Srobertoktime_to_us(ktime_t kt) 66258945Sroberto{ 67258945Sroberto return (ktime_divns(kt, NSEC_PER_USEC)); 68258945Sroberto} 69258945Sroberto 70258945Srobertostatic inline int64_t 71258945Srobertoktime_to_ms(ktime_t kt) 72258945Sroberto{ 73258945Sroberto return (ktime_divns(kt, NSEC_PER_MSEC)); 74258945Sroberto} 75258945Sroberto 76258945Srobertostatic inline struct timeval 77258945Srobertoktime_to_timeval(ktime_t kt) 78258945Sroberto{ 79258945Sroberto return (ns_to_timeval(kt)); 80258945Sroberto} 81258945Sroberto 82258945Srobertostatic inline ktime_t 83258945Srobertoktime_add_ns(ktime_t kt, int64_t ns) 84258945Sroberto{ 85258945Sroberto return (kt + ns); 86258945Sroberto} 87258945Sroberto 88258945Srobertostatic inline ktime_t 89258945Srobertoktime_sub_ns(ktime_t kt, int64_t ns) 90258945Sroberto{ 91258945Sroberto return (kt - ns); 92258945Sroberto} 93258945Sroberto 94258945Srobertostatic inline ktime_t 95258945Srobertoktime_set(const long secs, const unsigned long nsecs) 96258945Sroberto{ 97258945Sroberto ktime_t retval = {(s64) secs * NSEC_PER_SEC + (s64) nsecs}; 98258945Sroberto 99258945Sroberto return (retval); 100258945Sroberto} 101258945Sroberto 102258945Srobertostatic inline ktime_t 103258945Srobertoktime_sub(ktime_t lhs, ktime_t rhs) 104258945Sroberto{ 105258945Sroberto return (lhs - rhs); 106258945Sroberto} 107258945Sroberto 108258945Srobertostatic inline int64_t 109258945Srobertoktime_us_delta(ktime_t later, ktime_t earlier) 110258945Sroberto{ 111258945Sroberto ktime_t diff = ktime_sub(later, earlier); 112258945Sroberto 113258945Sroberto return (ktime_to_us(diff)); 114258945Sroberto} 115258945Sroberto 116258945Srobertostatic inline int64_t 117258945Srobertoktime_ms_delta(ktime_t later, ktime_t earlier) 118258945Sroberto{ 119258945Sroberto ktime_t diff = ktime_sub(later, earlier); 120258945Sroberto 121258945Sroberto return (ktime_to_ms(diff)); 122258945Sroberto} 123258945Sroberto 124258945Srobertostatic inline ktime_t 125258945Srobertoktime_add(ktime_t lhs, ktime_t rhs) 126258945Sroberto{ 127258945Sroberto return (lhs + rhs); 128258945Sroberto} 129258945Sroberto 130258945Srobertostatic inline ktime_t 131258945Srobertotimespec_to_ktime(struct timespec ts) 132258945Sroberto{ 133258945Sroberto return (ktime_set(ts.tv_sec, ts.tv_nsec)); 134258945Sroberto} 135258945Sroberto 136258945Srobertostatic inline ktime_t 137258945Srobertotimeval_to_ktime(struct timeval tv) 138258945Sroberto{ 139258945Sroberto return (ktime_set(tv.tv_sec, tv.tv_usec * NSEC_PER_USEC)); 140258945Sroberto} 141258945Sroberto 142258945Sroberto#define ktime_to_timespec(kt) ns_to_timespec(kt) 143258945Sroberto#define ktime_to_timeval(kt) ns_to_timeval(kt) 144258945Sroberto#define ktime_to_ns(kt) (kt) 145258945Sroberto 146258945Srobertostatic inline int64_t 147258945Srobertoktime_get_ns(void) 148258945Sroberto{ 149258945Sroberto struct timespec ts; 150258945Sroberto 151258945Sroberto ktime_get_ts(&ts); 152258945Sroberto 153258945Sroberto return (ktime_to_ns(timespec_to_ktime(ts))); 154258945Sroberto} 155258945Sroberto 156258945Srobertostatic inline ktime_t 157258945Srobertoktime_get(void) 158258945Sroberto{ 159258945Sroberto struct timespec ts; 160258945Sroberto 161258945Sroberto ktime_get_ts(&ts); 162258945Sroberto return (timespec_to_ktime(ts)); 163258945Sroberto} 164258945Sroberto 165258945Srobertostatic inline ktime_t 166258945Srobertoktime_get_boottime(void) 167258945Sroberto{ 168258945Sroberto struct timespec ts; 169258945Sroberto 170258945Sroberto nanouptime(&ts); 171258945Sroberto return (timespec_to_ktime(ts)); 172258945Sroberto} 173258945Sroberto 174258945Srobertostatic inline ktime_t 175258945Srobertoktime_get_real(void) 176258945Sroberto{ 177258945Sroberto struct timespec ts; 178258945Sroberto 179258945Sroberto nanotime(&ts); 180258945Sroberto return (timespec_to_ktime(ts)); 181258945Sroberto} 182258945Sroberto 183258945Srobertostatic inline ktime_t 184258945Srobertoktime_get_real_seconds(void) 185258945Sroberto{ 186258945Sroberto struct timespec ts; 187258945Sroberto 188258945Sroberto nanotime(&ts); 189258945Sroberto return (ts.tv_sec); 190258945Sroberto} 191258945Sroberto 192258945Srobertostatic inline ktime_t 193258945Srobertoktime_get_raw(void) 194258945Sroberto{ 195280849Scy struct timespec ts; 196280849Scy 197330106Sdelphij nanotime(&ts); 198280849Scy return (timespec_to_ktime(ts)); 199258945Sroberto} 200258945Sroberto 201258945Srobertostatic inline u64 202258945Srobertoktime_get_raw_ns(void) 203258945Sroberto{ 204258945Sroberto struct timespec ts; 205258945Sroberto 206280849Scy nanouptime(&ts); 207258945Sroberto return (ktime_to_ns(timespec_to_ktime(ts))); 208258945Sroberto} 209258945Sroberto 210280849Scy#endif /* _LINUX_KTIME_H */ 211258945Sroberto