132 lines
4.5 KiB
C++
132 lines
4.5 KiB
C++
/* OpenACC Runtime Library User-facing Declarations
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Copyright (C) 2013-2017 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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#ifndef _OPENACC_H
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#define _OPENACC_H 1
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/* The OpenACC standard is silent on whether or not including <openacc.h>
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might or must not include other header files. We chose to include
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some. */
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#include <stddef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if __cplusplus >= 201103
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# define __GOACC_NOTHROW noexcept
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#elif __cplusplus
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# define __GOACC_NOTHROW throw ()
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#else /* Not C++ */
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# define __GOACC_NOTHROW __attribute__ ((__nothrow__))
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#endif
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/* Types */
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typedef enum acc_device_t {
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/* Keep in sync with include/gomp-constants.h. */
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acc_device_none = 0,
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acc_device_default = 1,
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acc_device_host = 2,
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/* acc_device_host_nonshm = 3 removed. */
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acc_device_not_host = 4,
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acc_device_nvidia = 5,
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_ACC_device_hwm,
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/* Ensure enumeration is layout compatible with int. */
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_ACC_highest = __INT_MAX__,
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_ACC_neg = -1
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} acc_device_t;
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typedef enum acc_async_t {
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/* Keep in sync with include/gomp-constants.h. */
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acc_async_noval = -1,
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acc_async_sync = -2
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} acc_async_t;
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int acc_get_num_devices (acc_device_t) __GOACC_NOTHROW;
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void acc_set_device_type (acc_device_t) __GOACC_NOTHROW;
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acc_device_t acc_get_device_type (void) __GOACC_NOTHROW;
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void acc_set_device_num (int, acc_device_t) __GOACC_NOTHROW;
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int acc_get_device_num (acc_device_t) __GOACC_NOTHROW;
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int acc_async_test (int) __GOACC_NOTHROW;
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int acc_async_test_all (void) __GOACC_NOTHROW;
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void acc_wait (int) __GOACC_NOTHROW;
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void acc_wait_async (int, int) __GOACC_NOTHROW;
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void acc_wait_all (void) __GOACC_NOTHROW;
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void acc_wait_all_async (int) __GOACC_NOTHROW;
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void acc_init (acc_device_t) __GOACC_NOTHROW;
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void acc_shutdown (acc_device_t) __GOACC_NOTHROW;
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#ifdef __cplusplus
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int acc_on_device (int __arg) __GOACC_NOTHROW;
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#else
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int acc_on_device (acc_device_t __arg) __GOACC_NOTHROW;
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#endif
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void *acc_malloc (size_t) __GOACC_NOTHROW;
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void acc_free (void *) __GOACC_NOTHROW;
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/* Some of these would be more correct with const qualifiers, but
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the standard specifies otherwise. */
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void *acc_copyin (void *, size_t) __GOACC_NOTHROW;
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void *acc_present_or_copyin (void *, size_t) __GOACC_NOTHROW;
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void *acc_create (void *, size_t) __GOACC_NOTHROW;
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void *acc_present_or_create (void *, size_t) __GOACC_NOTHROW;
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void acc_copyout (void *, size_t) __GOACC_NOTHROW;
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void acc_delete (void *, size_t) __GOACC_NOTHROW;
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void acc_update_device (void *, size_t) __GOACC_NOTHROW;
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void acc_update_self (void *, size_t) __GOACC_NOTHROW;
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void acc_map_data (void *, void *, size_t) __GOACC_NOTHROW;
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void acc_unmap_data (void *) __GOACC_NOTHROW;
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void *acc_deviceptr (void *) __GOACC_NOTHROW;
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void *acc_hostptr (void *) __GOACC_NOTHROW;
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int acc_is_present (void *, size_t) __GOACC_NOTHROW;
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void acc_memcpy_to_device (void *, void *, size_t) __GOACC_NOTHROW;
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void acc_memcpy_from_device (void *, void *, size_t) __GOACC_NOTHROW;
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/* Old names. OpenACC does not specify whether these can or must
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not be macros, inlines or aliases for the new names. */
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#define acc_pcreate acc_present_or_create
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#define acc_pcopyin acc_present_or_copyin
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/* CUDA-specific routines. */
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void *acc_get_current_cuda_device (void) __GOACC_NOTHROW;
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void *acc_get_current_cuda_context (void) __GOACC_NOTHROW;
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void *acc_get_cuda_stream (int) __GOACC_NOTHROW;
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int acc_set_cuda_stream (int, void *) __GOACC_NOTHROW;
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#ifdef __cplusplus
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}
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/* Forwarding function with correctly typed arg. */
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#pragma acc routine seq
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inline int acc_on_device (acc_device_t __arg) __GOACC_NOTHROW
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{
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return acc_on_device ((int) __arg);
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}
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#endif
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#endif /* _OPENACC_H */
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