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      1 /* Copyright (C) 2015-2024 Free Software Foundation, Inc.
      2    Contributed by Dmitry Melnik <dm (at) 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.  */
     32 double __nvptx_clocktick = 0;
     33 
     34 double
     35 omp_get_wtime (void)
     36 {
     37   uint64_t clock;
     38   asm ("mov.u64 %0, %%clock64;" : "=r" (clock));
     39   return clock * __nvptx_clocktick;
     40 }
     41 
     42 double
     43 omp_get_wtick (void)
     44 {
     45   return __nvptx_clocktick;
     46 }
     47 
     48 ialias (omp_get_wtime)
     49 ialias (omp_get_wtick)
     50