1 /* 2 * Copyright (c) 2017, Mellanox Technologies, Ltd. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 */ 32 33 #ifndef __LIB_CLOCK_H__ 34 #define __LIB_CLOCK_H__ 35 36 void mlx5_init_clock(struct mlx5_core_dev *mdev); 37 void mlx5_cleanup_clock(struct mlx5_core_dev *mdev); 38 39 static inline ktime_t mlx5_timecounter_cyc2time(struct mlx5_clock *clock, 40 u64 timestamp) 41 { 42 u64 nsec; 43 44 read_lock(&clock->lock); 45 nsec = timecounter_cyc2time(&clock->tc, timestamp); 46 read_unlock(&clock->lock); 47 48 return ns_to_ktime(nsec); 49 } 50 51 #endif 52