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111
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1 /* OpenACC Runtime Library: CUDA support glue.
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2
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3 Copyright (C) 2014-2017 Free Software Foundation, Inc.
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4
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5 Contributed by Mentor Embedded.
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6
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7 This file is part of the GNU Offloading and Multi Processing Library
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8 (libgomp).
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9
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10 Libgomp is free software; you can redistribute it and/or modify it
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11 under the terms of the GNU General Public License as published by
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12 the Free Software Foundation; either version 3, or (at your option)
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13 any later version.
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14
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15 Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
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16 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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17 FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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18 more details.
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19
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20 Under Section 7 of GPL version 3, you are granted additional
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21 permissions described in the GCC Runtime Library Exception, version
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22 3.1, as published by the Free Software Foundation.
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23
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24 You should have received a copy of the GNU General Public License and
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25 a copy of the GCC Runtime Library Exception along with this program;
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26 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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27 <http://www.gnu.org/licenses/>. */
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28
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29 #include "openacc.h"
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30 #include "config.h"
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31 #include "libgomp.h"
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32 #include "oacc-int.h"
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33
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34 void *
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35 acc_get_current_cuda_device (void)
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36 {
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37 struct goacc_thread *thr = goacc_thread ();
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38
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39 if (thr && thr->dev && thr->dev->openacc.cuda.get_current_device_func)
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40 return thr->dev->openacc.cuda.get_current_device_func ();
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41
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42 return NULL;
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43 }
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44
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45 void *
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46 acc_get_current_cuda_context (void)
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47 {
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48 struct goacc_thread *thr = goacc_thread ();
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49
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50 if (thr && thr->dev && thr->dev->openacc.cuda.get_current_context_func)
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51 return thr->dev->openacc.cuda.get_current_context_func ();
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52
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53 return NULL;
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54 }
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55
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56 void *
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57 acc_get_cuda_stream (int async)
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58 {
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59 struct goacc_thread *thr = goacc_thread ();
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60
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61 if (async < 0)
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62 return NULL;
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63
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64 if (thr && thr->dev && thr->dev->openacc.cuda.get_stream_func)
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65 return thr->dev->openacc.cuda.get_stream_func (async);
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66
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67 return NULL;
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68 }
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69
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70 int
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71 acc_set_cuda_stream (int async, void *stream)
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72 {
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73 struct goacc_thread *thr;
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74
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75 if (async < 0 || stream == NULL)
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76 return 0;
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77
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78 goacc_lazy_initialize ();
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79
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80 thr = goacc_thread ();
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81
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82 if (thr && thr->dev && thr->dev->openacc.cuda.set_stream_func)
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83 return thr->dev->openacc.cuda.set_stream_func (async, stream);
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84
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85 return -1;
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86 }
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