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+/* OpenACC Runtime Library User-facing Declarations
+
+ Copyright (C) 2013-2017 Free Software Foundation, Inc.
+
+ Contributed by Mentor Embedded.
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _OPENACC_H
+#define _OPENACC_H 1
+
+/* The OpenACC standard is silent on whether or not including <openacc.h>
+ might or must not include other header files. We chose to include
+ some. */
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if __cplusplus >= 201103
+# define __GOACC_NOTHROW noexcept
+#elif __cplusplus
+# define __GOACC_NOTHROW throw ()
+#else /* Not C++ */
+# define __GOACC_NOTHROW __attribute__ ((__nothrow__))
+#endif
+
+/* Types */
+typedef enum acc_device_t {
+ /* Keep in sync with include/gomp-constants.h. */
+ acc_device_none = 0,
+ acc_device_default = 1,
+ acc_device_host = 2,
+ /* acc_device_host_nonshm = 3 removed. */
+ acc_device_not_host = 4,
+ acc_device_nvidia = 5,
+ _ACC_device_hwm,
+ /* Ensure enumeration is layout compatible with int. */
+ _ACC_highest = __INT_MAX__,
+ _ACC_neg = -1
+} acc_device_t;
+
+typedef enum acc_async_t {
+ /* Keep in sync with include/gomp-constants.h. */
+ acc_async_noval = -1,
+ acc_async_sync = -2
+} acc_async_t;
+
+int acc_get_num_devices (acc_device_t) __GOACC_NOTHROW;
+void acc_set_device_type (acc_device_t) __GOACC_NOTHROW;
+acc_device_t acc_get_device_type (void) __GOACC_NOTHROW;
+void acc_set_device_num (int, acc_device_t) __GOACC_NOTHROW;
+int acc_get_device_num (acc_device_t) __GOACC_NOTHROW;
+int acc_async_test (int) __GOACC_NOTHROW;
+int acc_async_test_all (void) __GOACC_NOTHROW;
+void acc_wait (int) __GOACC_NOTHROW;
+void acc_wait_async (int, int) __GOACC_NOTHROW;
+void acc_wait_all (void) __GOACC_NOTHROW;
+void acc_wait_all_async (int) __GOACC_NOTHROW;
+void acc_init (acc_device_t) __GOACC_NOTHROW;
+void acc_shutdown (acc_device_t) __GOACC_NOTHROW;
+#ifdef __cplusplus
+int acc_on_device (int __arg) __GOACC_NOTHROW;
+#else
+int acc_on_device (acc_device_t __arg) __GOACC_NOTHROW;
+#endif
+void *acc_malloc (size_t) __GOACC_NOTHROW;
+void acc_free (void *) __GOACC_NOTHROW;
+/* Some of these would be more correct with const qualifiers, but
+ the standard specifies otherwise. */
+void *acc_copyin (void *, size_t) __GOACC_NOTHROW;
+void *acc_present_or_copyin (void *, size_t) __GOACC_NOTHROW;
+void *acc_create (void *, size_t) __GOACC_NOTHROW;
+void *acc_present_or_create (void *, size_t) __GOACC_NOTHROW;
+void acc_copyout (void *, size_t) __GOACC_NOTHROW;
+void acc_delete (void *, size_t) __GOACC_NOTHROW;
+void acc_update_device (void *, size_t) __GOACC_NOTHROW;
+void acc_update_self (void *, size_t) __GOACC_NOTHROW;
+void acc_map_data (void *, void *, size_t) __GOACC_NOTHROW;
+void acc_unmap_data (void *) __GOACC_NOTHROW;
+void *acc_deviceptr (void *) __GOACC_NOTHROW;
+void *acc_hostptr (void *) __GOACC_NOTHROW;
+int acc_is_present (void *, size_t) __GOACC_NOTHROW;
+void acc_memcpy_to_device (void *, void *, size_t) __GOACC_NOTHROW;
+void acc_memcpy_from_device (void *, void *, size_t) __GOACC_NOTHROW;
+
+/* Old names. OpenACC does not specify whether these can or must
+ not be macros, inlines or aliases for the new names. */
+#define acc_pcreate acc_present_or_create
+#define acc_pcopyin acc_present_or_copyin
+
+/* CUDA-specific routines. */
+void *acc_get_current_cuda_device (void) __GOACC_NOTHROW;
+void *acc_get_current_cuda_context (void) __GOACC_NOTHROW;
+void *acc_get_cuda_stream (int) __GOACC_NOTHROW;
+int acc_set_cuda_stream (int, void *) __GOACC_NOTHROW;
+
+#ifdef __cplusplus
+}
+
+/* Forwarding function with correctly typed arg. */
+
+#pragma acc routine seq
+inline int acc_on_device (acc_device_t __arg) __GOACC_NOTHROW
+{
+ return acc_on_device ((int) __arg);
+}
+#endif
+
+#endif /* _OPENACC_H */