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41dbbb37 TS |
1 | /* OpenACC Runtime Library User-facing Declarations |
2 | ||
3 | Copyright (C) 2013-2015 Free Software Foundation, Inc. | |
4 | ||
5 | Contributed by Mentor Embedded. | |
6 | ||
7 | This file is part of the GNU Offloading and Multi Processing Library | |
8 | (libgomp). | |
9 | ||
10 | Libgomp is free software; you can redistribute it and/or modify it | |
11 | under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 3, or (at your option) | |
13 | any later version. | |
14 | ||
15 | Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY | |
16 | WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
17 | FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
18 | more details. | |
19 | ||
20 | Under Section 7 of GPL version 3, you are granted additional | |
21 | permissions described in the GCC Runtime Library Exception, version | |
22 | 3.1, as published by the Free Software Foundation. | |
23 | ||
24 | You should have received a copy of the GNU General Public License and | |
25 | a copy of the GCC Runtime Library Exception along with this program; | |
26 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
27 | <http://www.gnu.org/licenses/>. */ | |
28 | ||
29 | #ifndef _OPENACC_H | |
30 | #define _OPENACC_H 1 | |
31 | ||
32 | /* The OpenACC standard is silent on whether or not including <openacc.h> | |
33 | might or must not include other header files. We chose to include | |
34 | some. */ | |
35 | #include <stddef.h> | |
36 | ||
37 | #ifdef __cplusplus | |
38 | extern "C" { | |
39 | #endif | |
40 | ||
41 | #if __cplusplus >= 201103 | |
1be0899d | 42 | # define __GOACC_NOTHROW noexcept |
41dbbb37 TS |
43 | #elif __cplusplus |
44 | # define __GOACC_NOTHROW throw () | |
45 | #else /* Not C++ */ | |
46 | # define __GOACC_NOTHROW __attribute__ ((__nothrow__)) | |
47 | #endif | |
48 | ||
49 | /* Types */ | |
a0e701d8 NS |
50 | typedef enum acc_device_t { |
51 | /* Keep in sync with include/gomp-constants.h. */ | |
52 | acc_device_none = 0, | |
53 | acc_device_default = 1, | |
54 | acc_device_host = 2, | |
55 | /* acc_device_host_nonshm = 3 removed. */ | |
56 | acc_device_not_host = 4, | |
57 | acc_device_nvidia = 5, | |
58 | _ACC_device_hwm, | |
59 | /* Ensure enumeration is layout compatible with int. */ | |
60 | _ACC_highest = __INT_MAX__, | |
61 | _ACC_neg = -1 | |
62 | } acc_device_t; | |
63 | ||
64 | typedef enum acc_async_t { | |
65 | /* Keep in sync with include/gomp-constants.h. */ | |
66 | acc_async_noval = -1, | |
67 | acc_async_sync = -2 | |
68 | } acc_async_t; | |
41dbbb37 TS |
69 | |
70 | int acc_get_num_devices (acc_device_t) __GOACC_NOTHROW; | |
71 | void acc_set_device_type (acc_device_t) __GOACC_NOTHROW; | |
72 | acc_device_t acc_get_device_type (void) __GOACC_NOTHROW; | |
73 | void acc_set_device_num (int, acc_device_t) __GOACC_NOTHROW; | |
74 | int acc_get_device_num (acc_device_t) __GOACC_NOTHROW; | |
75 | int acc_async_test (int) __GOACC_NOTHROW; | |
76 | int acc_async_test_all (void) __GOACC_NOTHROW; | |
77 | void acc_wait (int) __GOACC_NOTHROW; | |
78 | void acc_wait_async (int, int) __GOACC_NOTHROW; | |
79 | void acc_wait_all (void) __GOACC_NOTHROW; | |
80 | void acc_wait_all_async (int) __GOACC_NOTHROW; | |
81 | void acc_init (acc_device_t) __GOACC_NOTHROW; | |
82 | void acc_shutdown (acc_device_t) __GOACC_NOTHROW; | |
a0e701d8 NS |
83 | #ifdef __cplusplus |
84 | int acc_on_device (int __arg) __GOACC_NOTHROW; | |
85 | #else | |
86 | int acc_on_device (acc_device_t __arg) __GOACC_NOTHROW; | |
87 | #endif | |
41dbbb37 TS |
88 | void *acc_malloc (size_t) __GOACC_NOTHROW; |
89 | void acc_free (void *) __GOACC_NOTHROW; | |
90 | /* Some of these would be more correct with const qualifiers, but | |
91 | the standard specifies otherwise. */ | |
92 | void *acc_copyin (void *, size_t) __GOACC_NOTHROW; | |
93 | void *acc_present_or_copyin (void *, size_t) __GOACC_NOTHROW; | |
94 | void *acc_create (void *, size_t) __GOACC_NOTHROW; | |
95 | void *acc_present_or_create (void *, size_t) __GOACC_NOTHROW; | |
96 | void acc_copyout (void *, size_t) __GOACC_NOTHROW; | |
97 | void acc_delete (void *, size_t) __GOACC_NOTHROW; | |
98 | void acc_update_device (void *, size_t) __GOACC_NOTHROW; | |
99 | void acc_update_self (void *, size_t) __GOACC_NOTHROW; | |
100 | void acc_map_data (void *, void *, size_t) __GOACC_NOTHROW; | |
101 | void acc_unmap_data (void *) __GOACC_NOTHROW; | |
102 | void *acc_deviceptr (void *) __GOACC_NOTHROW; | |
103 | void *acc_hostptr (void *) __GOACC_NOTHROW; | |
104 | int acc_is_present (void *, size_t) __GOACC_NOTHROW; | |
105 | void acc_memcpy_to_device (void *, void *, size_t) __GOACC_NOTHROW; | |
106 | void acc_memcpy_from_device (void *, void *, size_t) __GOACC_NOTHROW; | |
107 | ||
108 | /* Old names. OpenACC does not specify whether these can or must | |
109 | not be macros, inlines or aliases for the new names. */ | |
110 | #define acc_pcreate acc_present_or_create | |
111 | #define acc_pcopyin acc_present_or_copyin | |
112 | ||
113 | /* CUDA-specific routines. */ | |
114 | void *acc_get_current_cuda_device (void) __GOACC_NOTHROW; | |
115 | void *acc_get_current_cuda_context (void) __GOACC_NOTHROW; | |
116 | void *acc_get_cuda_stream (int) __GOACC_NOTHROW; | |
117 | int acc_set_cuda_stream (int, void *) __GOACC_NOTHROW; | |
118 | ||
119 | #ifdef __cplusplus | |
120 | } | |
a0e701d8 NS |
121 | |
122 | /* Forwarding function with correctly typed arg. */ | |
123 | ||
124 | inline int acc_on_device (acc_device_t __arg) __GOACC_NOTHROW | |
125 | { | |
126 | return acc_on_device ((int) __arg); | |
127 | } | |
41dbbb37 TS |
128 | #endif |
129 | ||
130 | #endif /* _OPENACC_H */ |