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111
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1 /* The libgomp plugin API.
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2
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131
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3 Copyright (C) 2014-2018 Free Software Foundation, Inc.
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111
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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 #ifndef LIBGOMP_PLUGIN_H
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30 #define LIBGOMP_PLUGIN_H 1
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31
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32 #include <stdbool.h>
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33 #include <stddef.h>
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34 #include <stdint.h>
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35
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36 #ifdef __cplusplus
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37 extern "C" {
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38 #endif
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39
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40 /* Capabilities of offloading devices. */
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41 #define GOMP_OFFLOAD_CAP_SHARED_MEM (1 << 0)
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42 #define GOMP_OFFLOAD_CAP_NATIVE_EXEC (1 << 1)
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43 #define GOMP_OFFLOAD_CAP_OPENMP_400 (1 << 2)
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44 #define GOMP_OFFLOAD_CAP_OPENACC_200 (1 << 3)
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45
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46 /* Type of offload target device. Keep in sync with include/gomp-constants.h. */
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47 enum offload_target_type
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48 {
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49 OFFLOAD_TARGET_TYPE_HOST = 2,
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50 /* OFFLOAD_TARGET_TYPE_HOST_NONSHM = 3 removed. */
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51 OFFLOAD_TARGET_TYPE_NVIDIA_PTX = 5,
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52 OFFLOAD_TARGET_TYPE_INTEL_MIC = 6,
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53 OFFLOAD_TARGET_TYPE_HSA = 7
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54 };
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55
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56 /* Auxiliary struct, used for transferring pairs of addresses from plugin
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57 to libgomp. */
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58 struct addr_pair
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59 {
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60 uintptr_t start;
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61 uintptr_t end;
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62 };
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63
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64 /* Miscellaneous functions. */
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65 extern void *GOMP_PLUGIN_malloc (size_t) __attribute__ ((malloc));
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66 extern void *GOMP_PLUGIN_malloc_cleared (size_t) __attribute__ ((malloc));
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67 extern void *GOMP_PLUGIN_realloc (void *, size_t);
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68 void GOMP_PLUGIN_target_task_completion (void *);
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69
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70 extern void GOMP_PLUGIN_debug (int, const char *, ...)
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71 __attribute__ ((format (printf, 2, 3)));
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72 extern void GOMP_PLUGIN_error (const char *, ...)
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73 __attribute__ ((format (printf, 1, 2)));
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74 extern void GOMP_PLUGIN_fatal (const char *, ...)
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75 __attribute__ ((noreturn, format (printf, 1, 2)));
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76
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77 /* Prototypes for functions implemented by libgomp plugins. */
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78 extern const char *GOMP_OFFLOAD_get_name (void);
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79 extern unsigned int GOMP_OFFLOAD_get_caps (void);
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80 extern int GOMP_OFFLOAD_get_type (void);
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81 extern int GOMP_OFFLOAD_get_num_devices (void);
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82 extern bool GOMP_OFFLOAD_init_device (int);
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83 extern bool GOMP_OFFLOAD_fini_device (int);
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84 extern unsigned GOMP_OFFLOAD_version (void);
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85 extern int GOMP_OFFLOAD_load_image (int, unsigned, const void *,
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86 struct addr_pair **);
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87 extern bool GOMP_OFFLOAD_unload_image (int, unsigned, const void *);
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88 extern void *GOMP_OFFLOAD_alloc (int, size_t);
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89 extern bool GOMP_OFFLOAD_free (int, void *);
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90 extern bool GOMP_OFFLOAD_dev2host (int, void *, const void *, size_t);
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91 extern bool GOMP_OFFLOAD_host2dev (int, void *, const void *, size_t);
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92 extern bool GOMP_OFFLOAD_dev2dev (int, void *, const void *, size_t);
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93 extern bool GOMP_OFFLOAD_can_run (void *);
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94 extern void GOMP_OFFLOAD_run (int, void *, void *, void **);
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95 extern void GOMP_OFFLOAD_async_run (int, void *, void *, void **, void *);
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96 extern void GOMP_OFFLOAD_openacc_exec (void (*) (void *), size_t, void **,
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97 void **, int, unsigned *, void *);
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98 extern void GOMP_OFFLOAD_openacc_register_async_cleanup (void *, int);
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99 extern int GOMP_OFFLOAD_openacc_async_test (int);
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100 extern int GOMP_OFFLOAD_openacc_async_test_all (void);
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101 extern void GOMP_OFFLOAD_openacc_async_wait (int);
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102 extern void GOMP_OFFLOAD_openacc_async_wait_async (int, int);
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103 extern void GOMP_OFFLOAD_openacc_async_wait_all (void);
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104 extern void GOMP_OFFLOAD_openacc_async_wait_all_async (int);
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105 extern void GOMP_OFFLOAD_openacc_async_set_async (int);
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106 extern void *GOMP_OFFLOAD_openacc_create_thread_data (int);
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107 extern void GOMP_OFFLOAD_openacc_destroy_thread_data (void *);
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108 extern void *GOMP_OFFLOAD_openacc_cuda_get_current_device (void);
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109 extern void *GOMP_OFFLOAD_openacc_cuda_get_current_context (void);
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110 extern void *GOMP_OFFLOAD_openacc_cuda_get_stream (int);
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111 extern int GOMP_OFFLOAD_openacc_cuda_set_stream (int, void *);
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112
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113 #ifdef __cplusplus
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114 }
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115 #endif
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116
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117 #endif
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