source: trunk/libs/newlib/src/include/gomp-constants.h @ 509

Last change on this file since 509 was 444, checked in by satin@…, 7 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
File size: 10.4 KB
Line 
1/* Communication between GCC and libgomp.
2
3   Copyright (C) 2014-2015 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 GOMP_CONSTANTS_H
30#define GOMP_CONSTANTS_H 1
31
32/* Memory mapping types.  */
33
34/* One byte.  */
35#define GOMP_MAP_LAST                   (1 << 8)
36
37#define GOMP_MAP_FLAG_TO                (1 << 0)
38#define GOMP_MAP_FLAG_FROM              (1 << 1)
39/* Special map kinds, enumerated starting here.  */
40#define GOMP_MAP_FLAG_SPECIAL_0         (1 << 2)
41#define GOMP_MAP_FLAG_SPECIAL_1         (1 << 3)
42#define GOMP_MAP_FLAG_SPECIAL_2         (1 << 4)
43#define GOMP_MAP_FLAG_SPECIAL           (GOMP_MAP_FLAG_SPECIAL_1 \
44                                         | GOMP_MAP_FLAG_SPECIAL_0)
45/* Flag to force a specific behavior (or else, trigger a run-time error).  */
46#define GOMP_MAP_FLAG_FORCE             (1 << 7)
47
48enum gomp_map_kind
49  {
50    /* If not already present, allocate.  */
51    GOMP_MAP_ALLOC =                    0,
52    /* ..., and copy to device.  */
53    GOMP_MAP_TO =                       (GOMP_MAP_ALLOC | GOMP_MAP_FLAG_TO),
54    /* ..., and copy from device.  */
55    GOMP_MAP_FROM =                     (GOMP_MAP_ALLOC | GOMP_MAP_FLAG_FROM),
56    /* ..., and copy to and from device.  */
57    GOMP_MAP_TOFROM =                   (GOMP_MAP_TO | GOMP_MAP_FROM),
58    /* The following kind is an internal only map kind, used for pointer based
59       array sections.  OMP_CLAUSE_SIZE for these is not the pointer size,
60       which is implicitly POINTER_SIZE_UNITS, but the bias.  */
61    GOMP_MAP_POINTER =                  (GOMP_MAP_FLAG_SPECIAL_0 | 0),
62    /* Also internal, behaves like GOMP_MAP_TO, but additionally any
63       GOMP_MAP_POINTER records consecutive after it which have addresses
64       falling into that range will not be ignored if GOMP_MAP_TO_PSET wasn't
65       mapped already.  */
66    GOMP_MAP_TO_PSET =                  (GOMP_MAP_FLAG_SPECIAL_0 | 1),
67    /* Must already be present.  */
68    GOMP_MAP_FORCE_PRESENT =            (GOMP_MAP_FLAG_SPECIAL_0 | 2),
69    /* Deallocate a mapping, without copying from device.  */
70    GOMP_MAP_DELETE =                   (GOMP_MAP_FLAG_SPECIAL_0 | 3),
71    /* Is a device pointer.  OMP_CLAUSE_SIZE for these is unused; is implicitly
72       POINTER_SIZE_UNITS.  */
73    GOMP_MAP_FORCE_DEVICEPTR =          (GOMP_MAP_FLAG_SPECIAL_1 | 0),
74    /* Do not map, copy bits for firstprivate instead.  */
75    /* OpenACC device_resident.  */
76    GOMP_MAP_DEVICE_RESIDENT =          (GOMP_MAP_FLAG_SPECIAL_1 | 1),
77    /* OpenACC link.  */
78    GOMP_MAP_LINK =                     (GOMP_MAP_FLAG_SPECIAL_1 | 2),
79    /* Allocate.  */
80    GOMP_MAP_FIRSTPRIVATE =             (GOMP_MAP_FLAG_SPECIAL | 0),
81    /* Similarly, but store the value in the pointer rather than
82       pointed by the pointer.  */
83    GOMP_MAP_FIRSTPRIVATE_INT =         (GOMP_MAP_FLAG_SPECIAL | 1),
84    /* Pointer translate host address into device address and copy that
85       back to host.  */
86    GOMP_MAP_USE_DEVICE_PTR =           (GOMP_MAP_FLAG_SPECIAL | 2),
87    /* Allocate a zero length array section.  Prefer next non-zero length
88       mapping over previous non-zero length mapping over zero length mapping
89       at the address.  If not already mapped, do nothing (and pointer translate
90       to NULL).  */
91    GOMP_MAP_ZERO_LEN_ARRAY_SECTION =   (GOMP_MAP_FLAG_SPECIAL | 3),
92    /* Allocate.  */
93    GOMP_MAP_FORCE_ALLOC =              (GOMP_MAP_FLAG_FORCE | GOMP_MAP_ALLOC),
94    /* ..., and copy to device.  */
95    GOMP_MAP_FORCE_TO =                 (GOMP_MAP_FLAG_FORCE | GOMP_MAP_TO),
96    /* ..., and copy from device.  */
97    GOMP_MAP_FORCE_FROM =               (GOMP_MAP_FLAG_FORCE | GOMP_MAP_FROM),
98    /* ..., and copy to and from device.  */
99    GOMP_MAP_FORCE_TOFROM =             (GOMP_MAP_FLAG_FORCE | GOMP_MAP_TOFROM),
100    /* If not already present, allocate.  And unconditionally copy to
101       device.  */
102    GOMP_MAP_ALWAYS_TO =                (GOMP_MAP_FLAG_SPECIAL_2 | GOMP_MAP_TO),
103    /* If not already present, allocate.  And unconditionally copy from
104       device.  */
105    GOMP_MAP_ALWAYS_FROM =              (GOMP_MAP_FLAG_SPECIAL_2
106                                         | GOMP_MAP_FROM),
107    /* If not already present, allocate.  And unconditionally copy to and from
108       device.  */
109    GOMP_MAP_ALWAYS_TOFROM =            (GOMP_MAP_FLAG_SPECIAL_2
110                                         | GOMP_MAP_TOFROM),
111    /* Map a sparse struct; the address is the base of the structure, alignment
112       it's required alignment, and size is the number of adjacent entries
113       that belong to the struct.  The adjacent entries should be sorted by
114       increasing address, so it is easy to determine lowest needed address
115       (address of the first adjacent entry) and highest needed address
116       (address of the last adjacent entry plus its size).  */
117    GOMP_MAP_STRUCT =                   (GOMP_MAP_FLAG_SPECIAL_2
118                                         | GOMP_MAP_FLAG_SPECIAL | 0),
119    /* On a location of a pointer/reference that is assumed to be already mapped
120       earlier, store the translated address of the preceeding mapping.
121       No refcount is bumped by this, and the store is done unconditionally.  */
122    GOMP_MAP_ALWAYS_POINTER =           (GOMP_MAP_FLAG_SPECIAL_2
123                                         | GOMP_MAP_FLAG_SPECIAL | 1),
124    /* Forced deallocation of zero length array section.  */
125    GOMP_MAP_DELETE_ZERO_LEN_ARRAY_SECTION
126      =                                 (GOMP_MAP_FLAG_SPECIAL_2
127                                         | GOMP_MAP_FLAG_SPECIAL | 3),
128    /* Decrement usage count and deallocate if zero.  */
129    GOMP_MAP_RELEASE =                  (GOMP_MAP_FLAG_SPECIAL_2
130                                         | GOMP_MAP_DELETE),
131
132    /* Internal to GCC, not used in libgomp.  */
133    /* Do not map, but pointer assign a pointer instead.  */
134    GOMP_MAP_FIRSTPRIVATE_POINTER =     (GOMP_MAP_LAST | 1),
135    /* Do not map, but pointer assign a reference instead.  */
136    GOMP_MAP_FIRSTPRIVATE_REFERENCE =   (GOMP_MAP_LAST | 2)
137  };
138
139#define GOMP_MAP_COPY_TO_P(X) \
140  (!((X) & GOMP_MAP_FLAG_SPECIAL) \
141   && ((X) & GOMP_MAP_FLAG_TO))
142
143#define GOMP_MAP_COPY_FROM_P(X) \
144  (!((X) & GOMP_MAP_FLAG_SPECIAL) \
145   && ((X) & GOMP_MAP_FLAG_FROM))
146
147#define GOMP_MAP_POINTER_P(X) \
148  ((X) == GOMP_MAP_POINTER)
149
150#define GOMP_MAP_ALWAYS_TO_P(X) \
151  (((X) == GOMP_MAP_ALWAYS_TO) || ((X) == GOMP_MAP_ALWAYS_TOFROM))
152
153#define GOMP_MAP_ALWAYS_FROM_P(X) \
154  (((X) == GOMP_MAP_ALWAYS_FROM) || ((X) == GOMP_MAP_ALWAYS_TOFROM))
155
156#define GOMP_MAP_ALWAYS_P(X) \
157  (GOMP_MAP_ALWAYS_TO_P (X) || ((X) == GOMP_MAP_ALWAYS_FROM))
158
159
160/* Asynchronous behavior.  Keep in sync with
161   libgomp/{openacc.h,openacc.f90,openacc_lib.h}:acc_async_t.  */
162
163#define GOMP_ASYNC_NOVAL                -1
164#define GOMP_ASYNC_SYNC                 -2
165
166
167/* Device codes.  Keep in sync with
168   libgomp/{openacc.h,openacc.f90,openacc_lib.h}:acc_device_t as well as
169   libgomp/libgomp-plugin.h.  */
170#define GOMP_DEVICE_NONE                0
171#define GOMP_DEVICE_DEFAULT             1
172#define GOMP_DEVICE_HOST                2
173/* #define GOMP_DEVICE_HOST_NONSHM      3 removed.  */
174#define GOMP_DEVICE_NOT_HOST            4
175#define GOMP_DEVICE_NVIDIA_PTX          5
176#define GOMP_DEVICE_INTEL_MIC           6
177#define GOMP_DEVICE_HSA                 7
178
179#define GOMP_DEVICE_ICV                 -1
180#define GOMP_DEVICE_HOST_FALLBACK       -2
181
182/* GOMP_task/GOMP_taskloop* flags argument.  */
183#define GOMP_TASK_FLAG_UNTIED           (1 << 0)
184#define GOMP_TASK_FLAG_FINAL            (1 << 1)
185#define GOMP_TASK_FLAG_MERGEABLE        (1 << 2)
186#define GOMP_TASK_FLAG_DEPEND           (1 << 3)
187#define GOMP_TASK_FLAG_PRIORITY         (1 << 4)
188#define GOMP_TASK_FLAG_UP               (1 << 8)
189#define GOMP_TASK_FLAG_GRAINSIZE        (1 << 9)
190#define GOMP_TASK_FLAG_IF               (1 << 10)
191#define GOMP_TASK_FLAG_NOGROUP          (1 << 11)
192
193/* GOMP_target{_ext,update_ext,enter_exit_data} flags argument.  */
194#define GOMP_TARGET_FLAG_NOWAIT         (1 << 0)
195#define GOMP_TARGET_FLAG_EXIT_DATA      (1 << 1)
196/* Internal to libgomp.  */
197#define GOMP_TARGET_FLAG_UPDATE         (1U << 31)
198
199/* Versions of libgomp and device-specific plugins.  GOMP_VERSION
200   should be incremented whenever an ABI-incompatible change is introduced
201   to the plugin interface defined in libgomp/libgomp.h.  */
202#define GOMP_VERSION    1
203#define GOMP_VERSION_NVIDIA_PTX 1
204#define GOMP_VERSION_INTEL_MIC 0
205#define GOMP_VERSION_HSA 0
206
207#define GOMP_VERSION_PACK(LIB, DEV) (((LIB) << 16) | (DEV))
208#define GOMP_VERSION_LIB(PACK) (((PACK) >> 16) & 0xffff)
209#define GOMP_VERSION_DEV(PACK) ((PACK) & 0xffff)
210
211#define GOMP_DIM_GANG   0
212#define GOMP_DIM_WORKER 1
213#define GOMP_DIM_VECTOR 2
214#define GOMP_DIM_MAX    3
215#define GOMP_DIM_MASK(X) (1u << (X))
216
217/* Varadic launch arguments.  End of list is marked by a zero.  */
218#define GOMP_LAUNCH_DIM         1  /* Launch dimensions, op = mask */
219#define GOMP_LAUNCH_ASYNC       2  /* Async, op = cst val if not MAX  */
220#define GOMP_LAUNCH_WAIT        3  /* Waits, op = num waits.  */
221#define GOMP_LAUNCH_CODE_SHIFT  28
222#define GOMP_LAUNCH_DEVICE_SHIFT 16
223#define GOMP_LAUNCH_OP_SHIFT 0
224#define GOMP_LAUNCH_PACK(CODE,DEVICE,OP)        \
225  (((CODE) << GOMP_LAUNCH_CODE_SHIFT)           \
226   | ((DEVICE) << GOMP_LAUNCH_DEVICE_SHIFT)     \
227   | ((OP) << GOMP_LAUNCH_OP_SHIFT))
228#define GOMP_LAUNCH_CODE(X) (((X) >> GOMP_LAUNCH_CODE_SHIFT) & 0xf)
229#define GOMP_LAUNCH_DEVICE(X) (((X) >> GOMP_LAUNCH_DEVICE_SHIFT) & 0xfff)
230#define GOMP_LAUNCH_OP(X) (((X) >> GOMP_LAUNCH_OP_SHIFT) & 0xffff)
231#define GOMP_LAUNCH_OP_MAX 0xffff
232
233/* Bitmask to apply in order to find out the intended device of a target
234   argument.  */
235#define GOMP_TARGET_ARG_DEVICE_MASK             ((1 << 7) - 1)
236/* The target argument is significant for all devices.  */
237#define GOMP_TARGET_ARG_DEVICE_ALL              0
238
239/* Flag set when the subsequent element in the device-specific argument
240   values.  */
241#define GOMP_TARGET_ARG_SUBSEQUENT_PARAM        (1 << 7)
242
243/* Bitmask to apply to a target argument to find out the value identifier.  */
244#define GOMP_TARGET_ARG_ID_MASK                 (((1 << 8) - 1) << 8)
245/* Target argument index of NUM_TEAMS.  */
246#define GOMP_TARGET_ARG_NUM_TEAMS               (1 << 8)
247/* Target argument index of THREAD_LIMIT.  */
248#define GOMP_TARGET_ARG_THREAD_LIMIT            (2 << 8)
249
250/* If the value is directly embeded in target argument, it should be a 16-bit
251   at most and shifted by this many bits.  */
252#define GOMP_TARGET_ARG_VALUE_SHIFT             16
253
254/* HSA specific data structures.  */
255
256/* Identifiers of device-specific target arguments.  */
257#define GOMP_TARGET_ARG_HSA_KERNEL_ATTRIBUTES   (1 << 8)
258
259#endif
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