ktime.h revision 337894
1270710Shselasky/*- 2329977Shselasky * Copyright (c) 2018 Limelight Networks, Inc. 3329977Shselasky * Copyright (c) 2014-2018 Mellanox Technologies, Ltd. 4289572Shselasky * Copyright (c) 2015 Fran��ois Tigeot 5270710Shselasky * All rights reserved. 6270710Shselasky * 7270710Shselasky * Redistribution and use in source and binary forms, with or without 8270710Shselasky * modification, are permitted provided that the following conditions 9270710Shselasky * are met: 10270710Shselasky * 1. Redistributions of source code must retain the above copyright 11270710Shselasky * notice unmodified, this list of conditions, and the following 12270710Shselasky * disclaimer. 13270710Shselasky * 2. Redistributions in binary form must reproduce the above copyright 14270710Shselasky * notice, this list of conditions and the following disclaimer in the 15270710Shselasky * documentation and/or other materials provided with the distribution. 16270710Shselasky * 17270710Shselasky * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18270710Shselasky * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19270710Shselasky * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20270710Shselasky * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21270710Shselasky * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22270710Shselasky * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23270710Shselasky * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24270710Shselasky * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25270710Shselasky * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26270710Shselasky * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27289644Shselasky * 28289644Shselasky * $FreeBSD: stable/11/sys/compat/linuxkpi/common/include/linux/ktime.h 337894 2018-08-16 08:08:30Z hselasky $ 29270710Shselasky */ 30328653Shselasky 31270710Shselasky#ifndef _LINUX_KTIME_H 32328653Shselasky#define _LINUX_KTIME_H 33270710Shselasky 34270710Shselasky#include <linux/types.h> 35289572Shselasky#include <linux/time.h> 36270710Shselasky#include <linux/jiffies.h> 37270710Shselasky 38329977Shselasky#define ktime_get_ts(x) getnanouptime(x) 39270710Shselasky 40289572Shselasky/* time values in nanoseconds */ 41329977Shselaskytypedef s64 ktime_t; 42270710Shselasky 43331756Semaste#define KTIME_MAX ((s64)~((u64)1 << 63)) 44331756Semaste#define KTIME_SEC_MAX (KTIME_MAX / NSEC_PER_SEC) 45270710Shselasky 46289572Shselaskystatic inline int64_t 47289572Shselaskyktime_to_ns(ktime_t kt) 48270710Shselasky{ 49329977Shselasky return (kt); 50270710Shselasky} 51270710Shselasky 52328653Shselaskystatic inline ktime_t 53328653Shselaskyns_to_ktime(uint64_t nsec) 54328653Shselasky{ 55329977Shselasky return (nsec); 56328653Shselasky} 57328653Shselasky 58300498Shselaskystatic inline int64_t 59300498Shselaskyktime_divns(const ktime_t kt, int64_t div) 60300498Shselasky{ 61329977Shselasky return (kt / div); 62300498Shselasky} 63300498Shselasky 64300498Shselaskystatic inline int64_t 65300498Shselaskyktime_to_us(ktime_t kt) 66300498Shselasky{ 67329977Shselasky return (ktime_divns(kt, NSEC_PER_USEC)); 68300498Shselasky} 69300498Shselasky 70300498Shselaskystatic inline int64_t 71300498Shselaskyktime_to_ms(ktime_t kt) 72300498Shselasky{ 73329977Shselasky return (ktime_divns(kt, NSEC_PER_MSEC)); 74300498Shselasky} 75300498Shselasky 76289572Shselaskystatic inline struct timeval 77289572Shselaskyktime_to_timeval(ktime_t kt) 78270710Shselasky{ 79329977Shselasky return (ns_to_timeval(kt)); 80270710Shselasky} 81270710Shselasky 82289572Shselaskystatic inline ktime_t 83289572Shselaskyktime_add_ns(ktime_t kt, int64_t ns) 84270710Shselasky{ 85329977Shselasky return (kt + ns); 86270710Shselasky} 87270710Shselasky 88289572Shselaskystatic inline ktime_t 89337894Shselaskyktime_add_ms(ktime_t kt, int64_t ms) 90337894Shselasky{ 91337894Shselasky 92337894Shselasky return (ktime_add_ns(kt, ms * NSEC_PER_MSEC)); 93337894Shselasky} 94337894Shselasky 95337894Shselaskystatic inline ktime_t 96289572Shselaskyktime_sub_ns(ktime_t kt, int64_t ns) 97270710Shselasky{ 98329977Shselasky return (kt - ns); 99270710Shselasky} 100270710Shselasky 101289572Shselaskystatic inline ktime_t 102289572Shselaskyktime_set(const long secs, const unsigned long nsecs) 103270710Shselasky{ 104329977Shselasky ktime_t retval = {(s64) secs * NSEC_PER_SEC + (s64) nsecs}; 105329977Shselasky 106289572Shselasky return (retval); 107270710Shselasky} 108270710Shselasky 109289572Shselaskystatic inline ktime_t 110289572Shselaskyktime_sub(ktime_t lhs, ktime_t rhs) 111270710Shselasky{ 112329977Shselasky return (lhs - rhs); 113270710Shselasky} 114270710Shselasky 115300498Shselaskystatic inline int64_t 116300498Shselaskyktime_us_delta(ktime_t later, ktime_t earlier) 117300498Shselasky{ 118329977Shselasky ktime_t diff = ktime_sub(later, earlier); 119329977Shselasky 120329977Shselasky return (ktime_to_us(diff)); 121300498Shselasky} 122300498Shselasky 123300498Shselaskystatic inline int64_t 124300498Shselaskyktime_ms_delta(ktime_t later, ktime_t earlier) 125300498Shselasky{ 126329977Shselasky ktime_t diff = ktime_sub(later, earlier); 127329977Shselasky 128329977Shselasky return (ktime_to_ms(diff)); 129300498Shselasky} 130300498Shselasky 131289572Shselaskystatic inline ktime_t 132289572Shselaskyktime_add(ktime_t lhs, ktime_t rhs) 133270710Shselasky{ 134329977Shselasky return (lhs + rhs); 135270710Shselasky} 136270710Shselasky 137335421Shselaskystatic inline int 138335421Shselaskyktime_compare(const ktime_t cmp1, const ktime_t cmp2) 139335421Shselasky{ 140335421Shselasky 141335421Shselasky if (cmp1 > cmp2) 142335421Shselasky return (1); 143335421Shselasky else if (cmp1 < cmp2) 144335421Shselasky return (-1); 145335421Shselasky else 146335421Shselasky return (0); 147335421Shselasky} 148335421Shselasky 149335421Shselaskystatic inline bool 150335421Shselaskyktime_after(const ktime_t cmp1, const ktime_t cmp2) 151335421Shselasky{ 152335421Shselasky 153335421Shselasky return (ktime_compare(cmp1, cmp2) > 0); 154335421Shselasky} 155335421Shselasky 156337894Shselaskystatic inline bool 157337894Shselaskyktime_before(const ktime_t cmp1, const ktime_t cmp2) 158337894Shselasky{ 159337894Shselasky 160337894Shselasky return (ktime_compare(cmp1, cmp2) < 0); 161337894Shselasky} 162337894Shselasky 163289572Shselaskystatic inline ktime_t 164289572Shselaskytimespec_to_ktime(struct timespec ts) 165270710Shselasky{ 166289572Shselasky return (ktime_set(ts.tv_sec, ts.tv_nsec)); 167270710Shselasky} 168270710Shselasky 169289572Shselaskystatic inline ktime_t 170289572Shselaskytimeval_to_ktime(struct timeval tv) 171270710Shselasky{ 172289572Shselasky return (ktime_set(tv.tv_sec, tv.tv_usec * NSEC_PER_USEC)); 173270710Shselasky} 174270710Shselasky 175329977Shselasky#define ktime_to_timespec(kt) ns_to_timespec(kt) 176335429Shselasky#define ktime_to_timespec64(kt) ns_to_timespec(kt) 177329977Shselasky#define ktime_to_timeval(kt) ns_to_timeval(kt) 178329977Shselasky#define ktime_to_ns(kt) (kt) 179270710Shselasky 180328653Shselaskystatic inline int64_t 181289572Shselaskyktime_get_ns(void) 182277396Shselasky{ 183277396Shselasky struct timespec ts; 184289572Shselasky 185277396Shselasky ktime_get_ts(&ts); 186329977Shselasky 187329977Shselasky return (ktime_to_ns(timespec_to_ktime(ts))); 188277396Shselasky} 189277396Shselasky 190289572Shselaskystatic inline ktime_t 191289572Shselaskyktime_get(void) 192289572Shselasky{ 193289572Shselasky struct timespec ts; 194289572Shselasky 195289572Shselasky ktime_get_ts(&ts); 196289572Shselasky return (timespec_to_ktime(ts)); 197289572Shselasky} 198289572Shselasky 199328653Shselaskystatic inline ktime_t 200328653Shselaskyktime_get_boottime(void) 201328653Shselasky{ 202328653Shselasky struct timespec ts; 203328653Shselasky 204328653Shselasky nanouptime(&ts); 205328653Shselasky return (timespec_to_ktime(ts)); 206328653Shselasky} 207328653Shselasky 208328653Shselaskystatic inline ktime_t 209328653Shselaskyktime_get_real(void) 210328653Shselasky{ 211328653Shselasky struct timespec ts; 212328653Shselasky 213328653Shselasky nanotime(&ts); 214328653Shselasky return (timespec_to_ktime(ts)); 215328653Shselasky} 216328653Shselasky 217329977Shselaskystatic inline ktime_t 218329977Shselaskyktime_get_real_seconds(void) 219329977Shselasky{ 220329977Shselasky struct timespec ts; 221329977Shselasky 222329977Shselasky nanotime(&ts); 223329977Shselasky return (ts.tv_sec); 224329977Shselasky} 225329977Shselasky 226330848Shselaskystatic inline ktime_t 227330848Shselaskyktime_get_raw(void) 228330848Shselasky{ 229330848Shselasky struct timespec ts; 230330848Shselasky 231330848Shselasky nanotime(&ts); 232330848Shselasky return (timespec_to_ktime(ts)); 233330848Shselasky} 234330848Shselasky 235329977Shselaskystatic inline u64 236329977Shselaskyktime_get_raw_ns(void) 237329977Shselasky{ 238329977Shselasky struct timespec ts; 239329977Shselasky 240329977Shselasky nanouptime(&ts); 241329977Shselasky return (ktime_to_ns(timespec_to_ktime(ts))); 242329977Shselasky} 243329977Shselasky 244328653Shselasky#endif /* _LINUX_KTIME_H */ 245