1/* Copyright (C) 2015-2020 Free Software Foundation, Inc. 2 Contributed by Dmitry Melnik <dm@ispras.ru> 3 4 This file is part of the GNU Offloading and Multi Processing Library 5 (libgomp). 6 7 Libgomp is free software; you can redistribute it and/or modify it 8 under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3, or (at your option) 10 any later version. 11 12 Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 14 FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15 more details. 16 17 Under Section 7 of GPL version 3, you are granted additional 18 permissions described in the GCC Runtime Library Exception, version 19 3.1, as published by the Free Software Foundation. 20 21 You should have received a copy of the GNU General Public License and 22 a copy of the GCC Runtime Library Exception along with this program; 23 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 24 <http://www.gnu.org/licenses/>. */ 25 26/* This file implements timer routines for NVPTX. It uses the %clock64 cycle 27 counter. */ 28 29#include "libgomp.h" 30 31/* This is set from host in plugin-nvptx.c. */ 32double __nvptx_clocktick = 0; 33 34double 35omp_get_wtime (void) 36{ 37 uint64_t clock; 38 asm ("mov.u64 %0, %%clock64;" : "=r" (clock)); 39 return clock * __nvptx_clocktick; 40} 41 42double 43omp_get_wtick (void) 44{ 45 return __nvptx_clocktick; 46} 47 48ialias (omp_get_wtime) 49ialias (omp_get_wtick) 50