1/*- 2 * Copyright (c) 2018 Limelight Networks, Inc. 3 * Copyright (c) 2014-2018 Mellanox Technologies, Ltd. 4 * Copyright (c) 2015 Fran��ois Tigeot 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice unmodified, this list of conditions, and the following 12 * disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD: stable/11/sys/compat/linuxkpi/common/include/linux/ktime.h 340942 2018-11-26 11:07:43Z hselasky $ 29 */ 30 31#ifndef _LINUX_KTIME_H 32#define _LINUX_KTIME_H 33 34#include <linux/types.h> 35#include <linux/time.h> 36#include <linux/jiffies.h> 37 38#define ktime_get_ts(x) getnanouptime(x) 39 40/* time values in nanoseconds */ 41typedef s64 ktime_t; 42 43#define KTIME_MAX ((s64)~((u64)1 << 63)) 44#define KTIME_SEC_MAX (KTIME_MAX / NSEC_PER_SEC) 45 46static inline int64_t 47ktime_to_ns(ktime_t kt) 48{ 49 return (kt); 50} 51 52static inline ktime_t 53ns_to_ktime(uint64_t nsec) 54{ 55 return (nsec); 56} 57 58static inline int64_t 59ktime_divns(const ktime_t kt, int64_t div) 60{ 61 return (kt / div); 62} 63 64static inline int64_t 65ktime_to_us(ktime_t kt) 66{ 67 return (ktime_divns(kt, NSEC_PER_USEC)); 68} 69 70static inline int64_t 71ktime_to_ms(ktime_t kt) 72{ 73 return (ktime_divns(kt, NSEC_PER_MSEC)); 74} 75 76static inline struct timeval 77ktime_to_timeval(ktime_t kt) 78{ 79 return (ns_to_timeval(kt)); 80} 81 82static inline ktime_t 83ktime_add_ns(ktime_t kt, int64_t ns) 84{ 85 return (kt + ns); 86} 87 88static inline ktime_t 89ktime_add_ms(ktime_t kt, int64_t ms) 90{ 91 92 return (ktime_add_ns(kt, ms * NSEC_PER_MSEC)); 93} 94 95static inline ktime_t 96ktime_sub_ns(ktime_t kt, int64_t ns) 97{ 98 return (kt - ns); 99} 100 101static inline ktime_t 102ktime_set(const long secs, const unsigned long nsecs) 103{ 104 ktime_t retval = {(s64) secs * NSEC_PER_SEC + (s64) nsecs}; 105 106 return (retval); 107} 108 109static inline ktime_t 110ktime_sub(ktime_t lhs, ktime_t rhs) 111{ 112 return (lhs - rhs); 113} 114 115static inline int64_t 116ktime_us_delta(ktime_t later, ktime_t earlier) 117{ 118 ktime_t diff = ktime_sub(later, earlier); 119 120 return (ktime_to_us(diff)); 121} 122 123static inline int64_t 124ktime_ms_delta(ktime_t later, ktime_t earlier) 125{ 126 ktime_t diff = ktime_sub(later, earlier); 127 128 return (ktime_to_ms(diff)); 129} 130 131static inline ktime_t 132ktime_add(ktime_t lhs, ktime_t rhs) 133{ 134 return (lhs + rhs); 135} 136 137static inline int 138ktime_compare(const ktime_t cmp1, const ktime_t cmp2) 139{ 140 141 if (cmp1 > cmp2) 142 return (1); 143 else if (cmp1 < cmp2) 144 return (-1); 145 else 146 return (0); 147} 148 149static inline bool 150ktime_after(const ktime_t cmp1, const ktime_t cmp2) 151{ 152 153 return (ktime_compare(cmp1, cmp2) > 0); 154} 155 156static inline bool 157ktime_before(const ktime_t cmp1, const ktime_t cmp2) 158{ 159 160 return (ktime_compare(cmp1, cmp2) < 0); 161} 162 163static inline ktime_t 164timespec_to_ktime(struct timespec ts) 165{ 166 return (ktime_set(ts.tv_sec, ts.tv_nsec)); 167} 168 169static inline ktime_t 170timeval_to_ktime(struct timeval tv) 171{ 172 return (ktime_set(tv.tv_sec, tv.tv_usec * NSEC_PER_USEC)); 173} 174 175#define ktime_to_timespec(kt) ns_to_timespec(kt) 176#define ktime_to_timespec64(kt) ns_to_timespec(kt) 177#define ktime_to_timeval(kt) ns_to_timeval(kt) 178#define ktime_to_ns(kt) (kt) 179#define ktime_get_ts64(ts) ktime_get_ts(ts) 180 181static inline int64_t 182ktime_get_ns(void) 183{ 184 struct timespec ts; 185 186 ktime_get_ts(&ts); 187 188 return (ktime_to_ns(timespec_to_ktime(ts))); 189} 190 191static inline ktime_t 192ktime_get(void) 193{ 194 struct timespec ts; 195 196 ktime_get_ts(&ts); 197 return (timespec_to_ktime(ts)); 198} 199 200static inline ktime_t 201ktime_get_boottime(void) 202{ 203 struct timespec ts; 204 205 nanouptime(&ts); 206 return (timespec_to_ktime(ts)); 207} 208 209static inline ktime_t 210ktime_get_real(void) 211{ 212 struct timespec ts; 213 214 nanotime(&ts); 215 return (timespec_to_ktime(ts)); 216} 217 218static inline ktime_t 219ktime_get_real_seconds(void) 220{ 221 struct timespec ts; 222 223 nanotime(&ts); 224 return (ts.tv_sec); 225} 226 227static inline ktime_t 228ktime_get_raw(void) 229{ 230 struct timespec ts; 231 232 nanotime(&ts); 233 return (timespec_to_ktime(ts)); 234} 235 236static inline u64 237ktime_get_raw_ns(void) 238{ 239 struct timespec ts; 240 241 nanouptime(&ts); 242 return (ktime_to_ns(timespec_to_ktime(ts))); 243} 244 245#endif /* _LINUX_KTIME_H */ 246