18c247cc0b
Per my reading of the OpenACC specification (and as supported by secondary documentation, such as code examples, or presentations), it's valid to call "acc_get_cuda_stream"/"acc_set_cuda_stream" also with "acc_async_sync", "acc_async_noval" arguments, not just with the nonnegative values as currently implemented. libgomp/ PR libgomp/88370 * libgomp.texi (acc_get_current_cuda_context, acc_get_cuda_stream) (acc_set_cuda_stream): Clarify. * oacc-cuda.c (acc_get_cuda_stream, acc_set_cuda_stream): Use "async_valid_p". * plugin/plugin-nvptx.c (nvptx_set_cuda_stream): Refuse "async == acc_async_sync". * testsuite/libgomp.oacc-c-c++-common/acc_set_cuda_stream-1.c: New file. * testsuite/libgomp.oacc-c-c++-common/async_queue-1.c: Likewise. * testsuite/libgomp.oacc-c-c++-common/lib-84.c: Update. * testsuite/libgomp.oacc-c-c++-common/lib-85.c: Likewise. From-SVN: r267147
87 lines
2.3 KiB
C
87 lines
2.3 KiB
C
/* OpenACC Runtime Library: CUDA support glue.
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Copyright (C) 2014-2018 Free Software Foundation, Inc.
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Contributed by Mentor Embedded.
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This file is part of the GNU Offloading and Multi Processing Library
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(libgomp).
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Libgomp is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#include "openacc.h"
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#include "config.h"
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#include "libgomp.h"
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#include "oacc-int.h"
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void *
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acc_get_current_cuda_device (void)
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{
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struct goacc_thread *thr = goacc_thread ();
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if (thr && thr->dev && thr->dev->openacc.cuda.get_current_device_func)
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return thr->dev->openacc.cuda.get_current_device_func ();
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return NULL;
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}
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void *
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acc_get_current_cuda_context (void)
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{
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struct goacc_thread *thr = goacc_thread ();
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if (thr && thr->dev && thr->dev->openacc.cuda.get_current_context_func)
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return thr->dev->openacc.cuda.get_current_context_func ();
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return NULL;
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}
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void *
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acc_get_cuda_stream (int async)
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{
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struct goacc_thread *thr = goacc_thread ();
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if (!async_valid_p (async))
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return NULL;
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if (thr && thr->dev && thr->dev->openacc.cuda.get_stream_func)
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return thr->dev->openacc.cuda.get_stream_func (async);
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return NULL;
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}
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int
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acc_set_cuda_stream (int async, void *stream)
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{
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struct goacc_thread *thr;
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if (!async_valid_p (async) || stream == NULL)
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return 0;
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goacc_lazy_initialize ();
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thr = goacc_thread ();
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if (thr && thr->dev && thr->dev->openacc.cuda.set_stream_func)
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return thr->dev->openacc.cuda.set_stream_func (async, stream);
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return -1;
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}
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