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fbd26352 | 1 | /* Copyright (C) 2013-2019 Free Software Foundation, Inc. |
bc7bff74 | 2 | Contributed by Jakub Jelinek <jakub@redhat.com>. |
3 | ||
c35c9a62 | 4 | This file is part of the GNU Offloading and Multi Processing Library |
5 | (libgomp). | |
bc7bff74 | 6 | |
7 | Libgomp is free software; you can redistribute it and/or modify it | |
8 | under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3, or (at your option) | |
10 | any later version. | |
11 | ||
12 | Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY | |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
14 | FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | more details. | |
16 | ||
17 | Under Section 7 of GPL version 3, you are granted additional | |
18 | permissions described in the GCC Runtime Library Exception, version | |
19 | 3.1, as published by the Free Software Foundation. | |
20 | ||
21 | You should have received a copy of the GNU General Public License and | |
22 | a copy of the GCC Runtime Library Exception along with this program; | |
23 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
24 | <http://www.gnu.org/licenses/>. */ | |
25 | ||
995b27b9 | 26 | /* This file contains the support of offloading. */ |
bc7bff74 | 27 | |
995b27b9 | 28 | #include "config.h" |
bc7bff74 | 29 | #include "libgomp.h" |
ca4c3545 | 30 | #include "oacc-plugin.h" |
31 | #include "oacc-int.h" | |
32 | #include "gomp-constants.h" | |
bc7bff74 | 33 | #include <limits.h> |
34 | #include <stdbool.h> | |
35 | #include <stdlib.h> | |
2634aed9 | 36 | #ifdef HAVE_INTTYPES_H |
37 | # include <inttypes.h> /* For PRIu64. */ | |
38 | #endif | |
bc7bff74 | 39 | #include <string.h> |
ca4c3545 | 40 | #include <assert.h> |
43895be5 | 41 | #include <errno.h> |
bc7bff74 | 42 | |
995b27b9 | 43 | #ifdef PLUGIN_SUPPORT |
44 | #include <dlfcn.h> | |
4fda895a | 45 | #include "plugin-suffix.h" |
995b27b9 | 46 | #endif |
47 | ||
48 | static void gomp_target_init (void); | |
49 | ||
ca4c3545 | 50 | /* The whole initialization code for offloading plugins is only run one. */ |
995b27b9 | 51 | static pthread_once_t gomp_is_initialized = PTHREAD_ONCE_INIT; |
52 | ||
0d8c703d | 53 | /* Mutex for offload image registration. */ |
54 | static gomp_mutex_t register_lock; | |
55 | ||
995b27b9 | 56 | /* This structure describes an offload image. |
57 | It contains type of the target device, pointer to host table descriptor, and | |
58 | pointer to target data. */ | |
59 | struct offload_image_descr { | |
d3d8e632 | 60 | unsigned version; |
995b27b9 | 61 | enum offload_target_type type; |
4e985e0f | 62 | const void *host_table; |
70046055 | 63 | const void *target_data; |
995b27b9 | 64 | }; |
65 | ||
66 | /* Array of descriptors of offload images. */ | |
67 | static struct offload_image_descr *offload_images; | |
68 | ||
69 | /* Total number of offload images. */ | |
70 | static int num_offload_images; | |
71 | ||
72 | /* Array of descriptors for all available devices. */ | |
73 | static struct gomp_device_descr *devices; | |
74 | ||
75 | /* Total number of available devices. */ | |
76 | static int num_devices; | |
77 | ||
ca4c3545 | 78 | /* Number of GOMP_OFFLOAD_CAP_OPENMP_400 devices. */ |
79 | static int num_devices_openmp; | |
80 | ||
0d8c703d | 81 | /* Similar to gomp_realloc, but release register_lock before gomp_fatal. */ |
82 | ||
83 | static void * | |
84 | gomp_realloc_unlock (void *old, size_t size) | |
85 | { | |
86 | void *ret = realloc (old, size); | |
87 | if (ret == NULL) | |
88 | { | |
89 | gomp_mutex_unlock (®ister_lock); | |
90 | gomp_fatal ("Out of memory allocating %lu bytes", (unsigned long) size); | |
91 | } | |
92 | return ret; | |
93 | } | |
94 | ||
ca4c3545 | 95 | attribute_hidden void |
96 | gomp_init_targets_once (void) | |
995b27b9 | 97 | { |
ca4c3545 | 98 | (void) pthread_once (&gomp_is_initialized, gomp_target_init); |
99 | } | |
995b27b9 | 100 | |
bc7bff74 | 101 | attribute_hidden int |
102 | gomp_get_num_devices (void) | |
103 | { | |
ca4c3545 | 104 | gomp_init_targets_once (); |
105 | return num_devices_openmp; | |
995b27b9 | 106 | } |
107 | ||
108 | static struct gomp_device_descr * | |
109 | resolve_device (int device_id) | |
110 | { | |
ca4c3545 | 111 | if (device_id == GOMP_DEVICE_ICV) |
995b27b9 | 112 | { |
113 | struct gomp_task_icv *icv = gomp_icv (false); | |
114 | device_id = icv->default_device_var; | |
115 | } | |
116 | ||
117 | if (device_id < 0 || device_id >= gomp_get_num_devices ()) | |
118 | return NULL; | |
119 | ||
43895be5 | 120 | gomp_mutex_lock (&devices[device_id].lock); |
f87b2900 | 121 | if (devices[device_id].state == GOMP_DEVICE_UNINITIALIZED) |
43895be5 | 122 | gomp_init_device (&devices[device_id]); |
f87b2900 | 123 | else if (devices[device_id].state == GOMP_DEVICE_FINALIZED) |
124 | { | |
125 | gomp_mutex_unlock (&devices[device_id].lock); | |
126 | return NULL; | |
127 | } | |
43895be5 | 128 | gomp_mutex_unlock (&devices[device_id].lock); |
129 | ||
995b27b9 | 130 | return &devices[device_id]; |
131 | } | |
132 | ||
133 | ||
43895be5 | 134 | static inline splay_tree_key |
135 | gomp_map_lookup (splay_tree mem_map, splay_tree_key key) | |
136 | { | |
137 | if (key->host_start != key->host_end) | |
138 | return splay_tree_lookup (mem_map, key); | |
139 | ||
140 | key->host_end++; | |
141 | splay_tree_key n = splay_tree_lookup (mem_map, key); | |
142 | key->host_end--; | |
143 | if (n) | |
144 | return n; | |
145 | key->host_start--; | |
146 | n = splay_tree_lookup (mem_map, key); | |
147 | key->host_start++; | |
148 | if (n) | |
149 | return n; | |
150 | return splay_tree_lookup (mem_map, key); | |
151 | } | |
152 | ||
9561765e | 153 | static inline splay_tree_key |
154 | gomp_map_0len_lookup (splay_tree mem_map, splay_tree_key key) | |
155 | { | |
156 | if (key->host_start != key->host_end) | |
157 | return splay_tree_lookup (mem_map, key); | |
158 | ||
159 | key->host_end++; | |
160 | splay_tree_key n = splay_tree_lookup (mem_map, key); | |
161 | key->host_end--; | |
162 | return n; | |
163 | } | |
164 | ||
9b50ad1d | 165 | static inline void |
166 | gomp_device_copy (struct gomp_device_descr *devicep, | |
167 | bool (*copy_func) (int, void *, const void *, size_t), | |
168 | const char *dst, void *dstaddr, | |
169 | const char *src, const void *srcaddr, | |
170 | size_t size) | |
171 | { | |
172 | if (!copy_func (devicep->target_id, dstaddr, srcaddr, size)) | |
173 | { | |
174 | gomp_mutex_unlock (&devicep->lock); | |
175 | gomp_fatal ("Copying of %s object [%p..%p) to %s object [%p..%p) failed", | |
176 | src, srcaddr, srcaddr + size, dst, dstaddr, dstaddr + size); | |
177 | } | |
178 | } | |
179 | ||
5af416bd | 180 | /* Infrastructure for coalescing adjacent or nearly adjacent (in device addresses) |
181 | host to device memory transfers. */ | |
182 | ||
65c9e9f9 | 183 | struct gomp_coalesce_chunk |
184 | { | |
185 | /* The starting and ending point of a coalesced chunk of memory. */ | |
186 | size_t start, end; | |
187 | }; | |
188 | ||
5af416bd | 189 | struct gomp_coalesce_buf |
190 | { | |
191 | /* Buffer into which gomp_copy_host2dev will memcpy data and from which | |
192 | it will be copied to the device. */ | |
193 | void *buf; | |
194 | struct target_mem_desc *tgt; | |
65c9e9f9 | 195 | /* Array with offsets, chunks[i].start is the starting offset and |
196 | chunks[i].end ending offset relative to tgt->tgt_start device address | |
5af416bd | 197 | of chunks which are to be copied to buf and later copied to device. */ |
65c9e9f9 | 198 | struct gomp_coalesce_chunk *chunks; |
5af416bd | 199 | /* Number of chunks in chunks array, or -1 if coalesce buffering should not |
200 | be performed. */ | |
201 | long chunk_cnt; | |
202 | /* During construction of chunks array, how many memory regions are within | |
203 | the last chunk. If there is just one memory region for a chunk, we copy | |
204 | it directly to device rather than going through buf. */ | |
205 | long use_cnt; | |
206 | }; | |
207 | ||
208 | /* Maximum size of memory region considered for coalescing. Larger copies | |
209 | are performed directly. */ | |
210 | #define MAX_COALESCE_BUF_SIZE (32 * 1024) | |
211 | ||
212 | /* Maximum size of a gap in between regions to consider them being copied | |
213 | within the same chunk. All the device offsets considered are within | |
214 | newly allocated device memory, so it isn't fatal if we copy some padding | |
215 | in between from host to device. The gaps come either from alignment | |
216 | padding or from memory regions which are not supposed to be copied from | |
217 | host to device (e.g. map(alloc:), map(from:) etc.). */ | |
218 | #define MAX_COALESCE_BUF_GAP (4 * 1024) | |
219 | ||
220 | /* Add region with device tgt_start relative offset and length to CBUF. */ | |
221 | ||
222 | static inline void | |
223 | gomp_coalesce_buf_add (struct gomp_coalesce_buf *cbuf, size_t start, size_t len) | |
224 | { | |
225 | if (len > MAX_COALESCE_BUF_SIZE || len == 0) | |
226 | return; | |
227 | if (cbuf->chunk_cnt) | |
228 | { | |
229 | if (cbuf->chunk_cnt < 0) | |
230 | return; | |
65c9e9f9 | 231 | if (start < cbuf->chunks[cbuf->chunk_cnt - 1].end) |
5af416bd | 232 | { |
233 | cbuf->chunk_cnt = -1; | |
234 | return; | |
235 | } | |
65c9e9f9 | 236 | if (start < cbuf->chunks[cbuf->chunk_cnt - 1].end + MAX_COALESCE_BUF_GAP) |
5af416bd | 237 | { |
65c9e9f9 | 238 | cbuf->chunks[cbuf->chunk_cnt - 1].end = start + len; |
5af416bd | 239 | cbuf->use_cnt++; |
240 | return; | |
241 | } | |
242 | /* If the last chunk is only used by one mapping, discard it, | |
243 | as it will be one host to device copy anyway and | |
244 | memcpying it around will only waste cycles. */ | |
245 | if (cbuf->use_cnt == 1) | |
246 | cbuf->chunk_cnt--; | |
247 | } | |
65c9e9f9 | 248 | cbuf->chunks[cbuf->chunk_cnt].start = start; |
249 | cbuf->chunks[cbuf->chunk_cnt].end = start + len; | |
5af416bd | 250 | cbuf->chunk_cnt++; |
251 | cbuf->use_cnt = 1; | |
252 | } | |
253 | ||
254 | /* Return true for mapping kinds which need to copy data from the | |
255 | host to device for regions that weren't previously mapped. */ | |
256 | ||
257 | static inline bool | |
258 | gomp_to_device_kind_p (int kind) | |
259 | { | |
260 | switch (kind) | |
261 | { | |
262 | case GOMP_MAP_ALLOC: | |
263 | case GOMP_MAP_FROM: | |
264 | case GOMP_MAP_FORCE_ALLOC: | |
265 | case GOMP_MAP_ALWAYS_FROM: | |
266 | return false; | |
267 | default: | |
268 | return true; | |
269 | } | |
270 | } | |
271 | ||
9b50ad1d | 272 | static void |
273 | gomp_copy_host2dev (struct gomp_device_descr *devicep, | |
5af416bd | 274 | void *d, const void *h, size_t sz, |
275 | struct gomp_coalesce_buf *cbuf) | |
9b50ad1d | 276 | { |
5af416bd | 277 | if (cbuf) |
278 | { | |
279 | uintptr_t doff = (uintptr_t) d - cbuf->tgt->tgt_start; | |
65c9e9f9 | 280 | if (doff < cbuf->chunks[cbuf->chunk_cnt - 1].end) |
5af416bd | 281 | { |
282 | long first = 0; | |
283 | long last = cbuf->chunk_cnt - 1; | |
284 | while (first <= last) | |
285 | { | |
286 | long middle = (first + last) >> 1; | |
65c9e9f9 | 287 | if (cbuf->chunks[middle].end <= doff) |
5af416bd | 288 | first = middle + 1; |
65c9e9f9 | 289 | else if (cbuf->chunks[middle].start <= doff) |
5af416bd | 290 | { |
65c9e9f9 | 291 | if (doff + sz > cbuf->chunks[middle].end) |
5af416bd | 292 | gomp_fatal ("internal libgomp cbuf error"); |
65c9e9f9 | 293 | memcpy ((char *) cbuf->buf + (doff - cbuf->chunks[0].start), |
5af416bd | 294 | h, sz); |
295 | return; | |
296 | } | |
297 | else | |
298 | last = middle - 1; | |
299 | } | |
300 | } | |
301 | } | |
9b50ad1d | 302 | gomp_device_copy (devicep, devicep->host2dev_func, "dev", d, "host", h, sz); |
303 | } | |
304 | ||
305 | static void | |
306 | gomp_copy_dev2host (struct gomp_device_descr *devicep, | |
307 | void *h, const void *d, size_t sz) | |
308 | { | |
309 | gomp_device_copy (devicep, devicep->dev2host_func, "host", h, "dev", d, sz); | |
310 | } | |
311 | ||
312 | static void | |
313 | gomp_free_device_memory (struct gomp_device_descr *devicep, void *devptr) | |
314 | { | |
315 | if (!devicep->free_func (devicep->target_id, devptr)) | |
316 | { | |
317 | gomp_mutex_unlock (&devicep->lock); | |
318 | gomp_fatal ("error in freeing device memory block at %p", devptr); | |
319 | } | |
320 | } | |
321 | ||
9561765e | 322 | /* Handle the case where gomp_map_lookup, splay_tree_lookup or |
323 | gomp_map_0len_lookup found oldn for newn. | |
995b27b9 | 324 | Helper function of gomp_map_vars. */ |
325 | ||
326 | static inline void | |
0d8c703d | 327 | gomp_map_vars_existing (struct gomp_device_descr *devicep, splay_tree_key oldn, |
43895be5 | 328 | splay_tree_key newn, struct target_var_desc *tgt_var, |
5af416bd | 329 | unsigned char kind, struct gomp_coalesce_buf *cbuf) |
995b27b9 | 330 | { |
43895be5 | 331 | tgt_var->key = oldn; |
332 | tgt_var->copy_from = GOMP_MAP_COPY_FROM_P (kind); | |
333 | tgt_var->always_copy_from = GOMP_MAP_ALWAYS_FROM_P (kind); | |
334 | tgt_var->offset = newn->host_start - oldn->host_start; | |
335 | tgt_var->length = newn->host_end - newn->host_start; | |
336 | ||
ca4c3545 | 337 | if ((kind & GOMP_MAP_FLAG_FORCE) |
338 | || oldn->host_start > newn->host_start | |
995b27b9 | 339 | || oldn->host_end < newn->host_end) |
0d8c703d | 340 | { |
341 | gomp_mutex_unlock (&devicep->lock); | |
342 | gomp_fatal ("Trying to map into device [%p..%p) object when " | |
343 | "[%p..%p) is already mapped", | |
344 | (void *) newn->host_start, (void *) newn->host_end, | |
345 | (void *) oldn->host_start, (void *) oldn->host_end); | |
346 | } | |
43895be5 | 347 | |
348 | if (GOMP_MAP_ALWAYS_TO_P (kind)) | |
9b50ad1d | 349 | gomp_copy_host2dev (devicep, |
350 | (void *) (oldn->tgt->tgt_start + oldn->tgt_offset | |
351 | + newn->host_start - oldn->host_start), | |
352 | (void *) newn->host_start, | |
5af416bd | 353 | newn->host_end - newn->host_start, cbuf); |
9b50ad1d | 354 | |
43895be5 | 355 | if (oldn->refcount != REFCOUNT_INFINITY) |
356 | oldn->refcount++; | |
995b27b9 | 357 | } |
358 | ||
ca4c3545 | 359 | static int |
43895be5 | 360 | get_kind (bool short_mapkind, void *kinds, int idx) |
ca4c3545 | 361 | { |
43895be5 | 362 | return short_mapkind ? ((unsigned short *) kinds)[idx] |
363 | : ((unsigned char *) kinds)[idx]; | |
ca4c3545 | 364 | } |
365 | ||
84f53106 | 366 | static void |
367 | gomp_map_pointer (struct target_mem_desc *tgt, uintptr_t host_ptr, | |
5af416bd | 368 | uintptr_t target_offset, uintptr_t bias, |
369 | struct gomp_coalesce_buf *cbuf) | |
84f53106 | 370 | { |
371 | struct gomp_device_descr *devicep = tgt->device_descr; | |
372 | struct splay_tree_s *mem_map = &devicep->mem_map; | |
373 | struct splay_tree_key_s cur_node; | |
374 | ||
375 | cur_node.host_start = host_ptr; | |
376 | if (cur_node.host_start == (uintptr_t) NULL) | |
377 | { | |
378 | cur_node.tgt_offset = (uintptr_t) NULL; | |
9b50ad1d | 379 | gomp_copy_host2dev (devicep, |
380 | (void *) (tgt->tgt_start + target_offset), | |
381 | (void *) &cur_node.tgt_offset, | |
5af416bd | 382 | sizeof (void *), cbuf); |
84f53106 | 383 | return; |
384 | } | |
385 | /* Add bias to the pointer value. */ | |
386 | cur_node.host_start += bias; | |
43895be5 | 387 | cur_node.host_end = cur_node.host_start; |
388 | splay_tree_key n = gomp_map_lookup (mem_map, &cur_node); | |
84f53106 | 389 | if (n == NULL) |
390 | { | |
391 | gomp_mutex_unlock (&devicep->lock); | |
392 | gomp_fatal ("Pointer target of array section wasn't mapped"); | |
393 | } | |
394 | cur_node.host_start -= n->host_start; | |
395 | cur_node.tgt_offset | |
396 | = n->tgt->tgt_start + n->tgt_offset + cur_node.host_start; | |
397 | /* At this point tgt_offset is target address of the | |
398 | array section. Now subtract bias to get what we want | |
399 | to initialize the pointer with. */ | |
400 | cur_node.tgt_offset -= bias; | |
9b50ad1d | 401 | gomp_copy_host2dev (devicep, (void *) (tgt->tgt_start + target_offset), |
5af416bd | 402 | (void *) &cur_node.tgt_offset, sizeof (void *), cbuf); |
84f53106 | 403 | } |
404 | ||
43895be5 | 405 | static void |
406 | gomp_map_fields_existing (struct target_mem_desc *tgt, splay_tree_key n, | |
407 | size_t first, size_t i, void **hostaddrs, | |
5af416bd | 408 | size_t *sizes, void *kinds, |
409 | struct gomp_coalesce_buf *cbuf) | |
43895be5 | 410 | { |
411 | struct gomp_device_descr *devicep = tgt->device_descr; | |
412 | struct splay_tree_s *mem_map = &devicep->mem_map; | |
413 | struct splay_tree_key_s cur_node; | |
414 | int kind; | |
415 | const bool short_mapkind = true; | |
416 | const int typemask = short_mapkind ? 0xff : 0x7; | |
417 | ||
418 | cur_node.host_start = (uintptr_t) hostaddrs[i]; | |
419 | cur_node.host_end = cur_node.host_start + sizes[i]; | |
420 | splay_tree_key n2 = splay_tree_lookup (mem_map, &cur_node); | |
421 | kind = get_kind (short_mapkind, kinds, i); | |
422 | if (n2 | |
423 | && n2->tgt == n->tgt | |
424 | && n2->host_start - n->host_start == n2->tgt_offset - n->tgt_offset) | |
425 | { | |
426 | gomp_map_vars_existing (devicep, n2, &cur_node, | |
5af416bd | 427 | &tgt->list[i], kind & typemask, cbuf); |
43895be5 | 428 | return; |
429 | } | |
430 | if (sizes[i] == 0) | |
431 | { | |
432 | if (cur_node.host_start > (uintptr_t) hostaddrs[first - 1]) | |
433 | { | |
434 | cur_node.host_start--; | |
435 | n2 = splay_tree_lookup (mem_map, &cur_node); | |
436 | cur_node.host_start++; | |
437 | if (n2 | |
438 | && n2->tgt == n->tgt | |
439 | && n2->host_start - n->host_start | |
440 | == n2->tgt_offset - n->tgt_offset) | |
441 | { | |
442 | gomp_map_vars_existing (devicep, n2, &cur_node, &tgt->list[i], | |
5af416bd | 443 | kind & typemask, cbuf); |
43895be5 | 444 | return; |
445 | } | |
446 | } | |
447 | cur_node.host_end++; | |
448 | n2 = splay_tree_lookup (mem_map, &cur_node); | |
449 | cur_node.host_end--; | |
450 | if (n2 | |
451 | && n2->tgt == n->tgt | |
452 | && n2->host_start - n->host_start == n2->tgt_offset - n->tgt_offset) | |
453 | { | |
454 | gomp_map_vars_existing (devicep, n2, &cur_node, &tgt->list[i], | |
5af416bd | 455 | kind & typemask, cbuf); |
43895be5 | 456 | return; |
457 | } | |
458 | } | |
459 | gomp_mutex_unlock (&devicep->lock); | |
460 | gomp_fatal ("Trying to map into device [%p..%p) structure element when " | |
461 | "other mapped elements from the same structure weren't mapped " | |
462 | "together with it", (void *) cur_node.host_start, | |
463 | (void *) cur_node.host_end); | |
464 | } | |
465 | ||
9561765e | 466 | static inline uintptr_t |
467 | gomp_map_val (struct target_mem_desc *tgt, void **hostaddrs, size_t i) | |
468 | { | |
469 | if (tgt->list[i].key != NULL) | |
470 | return tgt->list[i].key->tgt->tgt_start | |
471 | + tgt->list[i].key->tgt_offset | |
472 | + tgt->list[i].offset; | |
473 | if (tgt->list[i].offset == ~(uintptr_t) 0) | |
474 | return (uintptr_t) hostaddrs[i]; | |
475 | if (tgt->list[i].offset == ~(uintptr_t) 1) | |
476 | return 0; | |
477 | if (tgt->list[i].offset == ~(uintptr_t) 2) | |
478 | return tgt->list[i + 1].key->tgt->tgt_start | |
479 | + tgt->list[i + 1].key->tgt_offset | |
480 | + tgt->list[i + 1].offset | |
481 | + (uintptr_t) hostaddrs[i] | |
482 | - (uintptr_t) hostaddrs[i + 1]; | |
483 | return tgt->tgt_start + tgt->list[i].offset; | |
484 | } | |
485 | ||
ca4c3545 | 486 | attribute_hidden struct target_mem_desc * |
995b27b9 | 487 | gomp_map_vars (struct gomp_device_descr *devicep, size_t mapnum, |
ca4c3545 | 488 | void **hostaddrs, void **devaddrs, size_t *sizes, void *kinds, |
43895be5 | 489 | bool short_mapkind, enum gomp_map_vars_kind pragma_kind) |
995b27b9 | 490 | { |
491 | size_t i, tgt_align, tgt_size, not_found_cnt = 0; | |
43895be5 | 492 | bool has_firstprivate = false; |
493 | const int rshift = short_mapkind ? 8 : 3; | |
494 | const int typemask = short_mapkind ? 0xff : 0x7; | |
0d8c703d | 495 | struct splay_tree_s *mem_map = &devicep->mem_map; |
995b27b9 | 496 | struct splay_tree_key_s cur_node; |
497 | struct target_mem_desc *tgt | |
498 | = gomp_malloc (sizeof (*tgt) + sizeof (tgt->list[0]) * mapnum); | |
499 | tgt->list_count = mapnum; | |
43895be5 | 500 | tgt->refcount = pragma_kind == GOMP_MAP_VARS_ENTER_DATA ? 0 : 1; |
995b27b9 | 501 | tgt->device_descr = devicep; |
5af416bd | 502 | struct gomp_coalesce_buf cbuf, *cbufp = NULL; |
995b27b9 | 503 | |
504 | if (mapnum == 0) | |
3bdac239 | 505 | { |
506 | tgt->tgt_start = 0; | |
507 | tgt->tgt_end = 0; | |
508 | return tgt; | |
509 | } | |
995b27b9 | 510 | |
511 | tgt_align = sizeof (void *); | |
512 | tgt_size = 0; | |
5af416bd | 513 | cbuf.chunks = NULL; |
514 | cbuf.chunk_cnt = -1; | |
515 | cbuf.use_cnt = 0; | |
516 | cbuf.buf = NULL; | |
517 | if (mapnum > 1 || pragma_kind == GOMP_MAP_VARS_TARGET) | |
518 | { | |
65c9e9f9 | 519 | size_t chunks_size = (mapnum + 1) * sizeof (struct gomp_coalesce_chunk); |
520 | cbuf.chunks = (struct gomp_coalesce_chunk *) gomp_alloca (chunks_size); | |
5af416bd | 521 | cbuf.chunk_cnt = 0; |
522 | } | |
43895be5 | 523 | if (pragma_kind == GOMP_MAP_VARS_TARGET) |
995b27b9 | 524 | { |
525 | size_t align = 4 * sizeof (void *); | |
526 | tgt_align = align; | |
527 | tgt_size = mapnum * sizeof (void *); | |
5af416bd | 528 | cbuf.chunk_cnt = 1; |
529 | cbuf.use_cnt = 1 + (mapnum > 1); | |
65c9e9f9 | 530 | cbuf.chunks[0].start = 0; |
531 | cbuf.chunks[0].end = tgt_size; | |
995b27b9 | 532 | } |
533 | ||
0d8c703d | 534 | gomp_mutex_lock (&devicep->lock); |
f87b2900 | 535 | if (devicep->state == GOMP_DEVICE_FINALIZED) |
536 | { | |
537 | gomp_mutex_unlock (&devicep->lock); | |
538 | free (tgt); | |
539 | return NULL; | |
540 | } | |
ca4c3545 | 541 | |
995b27b9 | 542 | for (i = 0; i < mapnum; i++) |
543 | { | |
43895be5 | 544 | int kind = get_kind (short_mapkind, kinds, i); |
545 | if (hostaddrs[i] == NULL | |
546 | || (kind & typemask) == GOMP_MAP_FIRSTPRIVATE_INT) | |
995b27b9 | 547 | { |
43895be5 | 548 | tgt->list[i].key = NULL; |
549 | tgt->list[i].offset = ~(uintptr_t) 0; | |
550 | continue; | |
551 | } | |
552 | else if ((kind & typemask) == GOMP_MAP_USE_DEVICE_PTR) | |
553 | { | |
554 | cur_node.host_start = (uintptr_t) hostaddrs[i]; | |
555 | cur_node.host_end = cur_node.host_start; | |
556 | splay_tree_key n = gomp_map_lookup (mem_map, &cur_node); | |
557 | if (n == NULL) | |
558 | { | |
559 | gomp_mutex_unlock (&devicep->lock); | |
560 | gomp_fatal ("use_device_ptr pointer wasn't mapped"); | |
561 | } | |
562 | cur_node.host_start -= n->host_start; | |
563 | hostaddrs[i] | |
564 | = (void *) (n->tgt->tgt_start + n->tgt_offset | |
565 | + cur_node.host_start); | |
566 | tgt->list[i].key = NULL; | |
567 | tgt->list[i].offset = ~(uintptr_t) 0; | |
568 | continue; | |
569 | } | |
570 | else if ((kind & typemask) == GOMP_MAP_STRUCT) | |
571 | { | |
572 | size_t first = i + 1; | |
573 | size_t last = i + sizes[i]; | |
574 | cur_node.host_start = (uintptr_t) hostaddrs[i]; | |
575 | cur_node.host_end = (uintptr_t) hostaddrs[last] | |
576 | + sizes[last]; | |
577 | tgt->list[i].key = NULL; | |
578 | tgt->list[i].offset = ~(uintptr_t) 2; | |
579 | splay_tree_key n = splay_tree_lookup (mem_map, &cur_node); | |
580 | if (n == NULL) | |
581 | { | |
582 | size_t align = (size_t) 1 << (kind >> rshift); | |
583 | if (tgt_align < align) | |
584 | tgt_align = align; | |
5af416bd | 585 | tgt_size -= (uintptr_t) hostaddrs[first] - cur_node.host_start; |
43895be5 | 586 | tgt_size = (tgt_size + align - 1) & ~(align - 1); |
5af416bd | 587 | tgt_size += cur_node.host_end - cur_node.host_start; |
43895be5 | 588 | not_found_cnt += last - i; |
589 | for (i = first; i <= last; i++) | |
5af416bd | 590 | { |
591 | tgt->list[i].key = NULL; | |
592 | if (gomp_to_device_kind_p (get_kind (short_mapkind, kinds, i) | |
593 | & typemask)) | |
594 | gomp_coalesce_buf_add (&cbuf, | |
595 | tgt_size - cur_node.host_end | |
596 | + (uintptr_t) hostaddrs[i], | |
597 | sizes[i]); | |
598 | } | |
43895be5 | 599 | i--; |
600 | continue; | |
601 | } | |
602 | for (i = first; i <= last; i++) | |
603 | gomp_map_fields_existing (tgt, n, first, i, hostaddrs, | |
5af416bd | 604 | sizes, kinds, NULL); |
43895be5 | 605 | i--; |
995b27b9 | 606 | continue; |
607 | } | |
9561765e | 608 | else if ((kind & typemask) == GOMP_MAP_ALWAYS_POINTER) |
609 | { | |
610 | tgt->list[i].key = NULL; | |
611 | tgt->list[i].offset = ~(uintptr_t) 1; | |
612 | has_firstprivate = true; | |
613 | continue; | |
614 | } | |
995b27b9 | 615 | cur_node.host_start = (uintptr_t) hostaddrs[i]; |
ca4c3545 | 616 | if (!GOMP_MAP_POINTER_P (kind & typemask)) |
995b27b9 | 617 | cur_node.host_end = cur_node.host_start + sizes[i]; |
618 | else | |
619 | cur_node.host_end = cur_node.host_start + sizeof (void *); | |
43895be5 | 620 | if ((kind & typemask) == GOMP_MAP_FIRSTPRIVATE) |
621 | { | |
622 | tgt->list[i].key = NULL; | |
623 | ||
624 | size_t align = (size_t) 1 << (kind >> rshift); | |
625 | if (tgt_align < align) | |
626 | tgt_align = align; | |
627 | tgt_size = (tgt_size + align - 1) & ~(align - 1); | |
5af416bd | 628 | gomp_coalesce_buf_add (&cbuf, tgt_size, |
629 | cur_node.host_end - cur_node.host_start); | |
43895be5 | 630 | tgt_size += cur_node.host_end - cur_node.host_start; |
631 | has_firstprivate = true; | |
632 | continue; | |
633 | } | |
634 | splay_tree_key n; | |
635 | if ((kind & typemask) == GOMP_MAP_ZERO_LEN_ARRAY_SECTION) | |
995b27b9 | 636 | { |
9561765e | 637 | n = gomp_map_0len_lookup (mem_map, &cur_node); |
43895be5 | 638 | if (!n) |
639 | { | |
640 | tgt->list[i].key = NULL; | |
641 | tgt->list[i].offset = ~(uintptr_t) 1; | |
642 | continue; | |
643 | } | |
995b27b9 | 644 | } |
43895be5 | 645 | else |
646 | n = splay_tree_lookup (mem_map, &cur_node); | |
c0998828 | 647 | if (n && n->refcount != REFCOUNT_LINK) |
43895be5 | 648 | gomp_map_vars_existing (devicep, n, &cur_node, &tgt->list[i], |
5af416bd | 649 | kind & typemask, NULL); |
995b27b9 | 650 | else |
651 | { | |
43895be5 | 652 | tgt->list[i].key = NULL; |
ca4c3545 | 653 | |
654 | size_t align = (size_t) 1 << (kind >> rshift); | |
995b27b9 | 655 | not_found_cnt++; |
656 | if (tgt_align < align) | |
657 | tgt_align = align; | |
658 | tgt_size = (tgt_size + align - 1) & ~(align - 1); | |
5af416bd | 659 | if (gomp_to_device_kind_p (kind & typemask)) |
660 | gomp_coalesce_buf_add (&cbuf, tgt_size, | |
661 | cur_node.host_end - cur_node.host_start); | |
995b27b9 | 662 | tgt_size += cur_node.host_end - cur_node.host_start; |
ca4c3545 | 663 | if ((kind & typemask) == GOMP_MAP_TO_PSET) |
995b27b9 | 664 | { |
665 | size_t j; | |
666 | for (j = i + 1; j < mapnum; j++) | |
43895be5 | 667 | if (!GOMP_MAP_POINTER_P (get_kind (short_mapkind, kinds, j) |
ca4c3545 | 668 | & typemask)) |
995b27b9 | 669 | break; |
670 | else if ((uintptr_t) hostaddrs[j] < cur_node.host_start | |
671 | || ((uintptr_t) hostaddrs[j] + sizeof (void *) | |
672 | > cur_node.host_end)) | |
673 | break; | |
674 | else | |
675 | { | |
43895be5 | 676 | tgt->list[j].key = NULL; |
995b27b9 | 677 | i++; |
678 | } | |
679 | } | |
680 | } | |
681 | } | |
682 | ||
ca4c3545 | 683 | if (devaddrs) |
684 | { | |
685 | if (mapnum != 1) | |
0d8c703d | 686 | { |
687 | gomp_mutex_unlock (&devicep->lock); | |
688 | gomp_fatal ("unexpected aggregation"); | |
689 | } | |
ca4c3545 | 690 | tgt->to_free = devaddrs[0]; |
691 | tgt->tgt_start = (uintptr_t) tgt->to_free; | |
692 | tgt->tgt_end = tgt->tgt_start + sizes[0]; | |
693 | } | |
43895be5 | 694 | else if (not_found_cnt || pragma_kind == GOMP_MAP_VARS_TARGET) |
995b27b9 | 695 | { |
696 | /* Allocate tgt_align aligned tgt_size block of memory. */ | |
697 | /* FIXME: Perhaps change interface to allocate properly aligned | |
698 | memory. */ | |
699 | tgt->to_free = devicep->alloc_func (devicep->target_id, | |
700 | tgt_size + tgt_align - 1); | |
9b50ad1d | 701 | if (!tgt->to_free) |
702 | { | |
703 | gomp_mutex_unlock (&devicep->lock); | |
704 | gomp_fatal ("device memory allocation fail"); | |
705 | } | |
706 | ||
995b27b9 | 707 | tgt->tgt_start = (uintptr_t) tgt->to_free; |
708 | tgt->tgt_start = (tgt->tgt_start + tgt_align - 1) & ~(tgt_align - 1); | |
709 | tgt->tgt_end = tgt->tgt_start + tgt_size; | |
5af416bd | 710 | |
711 | if (cbuf.use_cnt == 1) | |
712 | cbuf.chunk_cnt--; | |
713 | if (cbuf.chunk_cnt > 0) | |
714 | { | |
715 | cbuf.buf | |
65c9e9f9 | 716 | = malloc (cbuf.chunks[cbuf.chunk_cnt - 1].end - cbuf.chunks[0].start); |
5af416bd | 717 | if (cbuf.buf) |
718 | { | |
719 | cbuf.tgt = tgt; | |
720 | cbufp = &cbuf; | |
721 | } | |
722 | } | |
995b27b9 | 723 | } |
724 | else | |
725 | { | |
726 | tgt->to_free = NULL; | |
727 | tgt->tgt_start = 0; | |
728 | tgt->tgt_end = 0; | |
729 | } | |
730 | ||
731 | tgt_size = 0; | |
43895be5 | 732 | if (pragma_kind == GOMP_MAP_VARS_TARGET) |
995b27b9 | 733 | tgt_size = mapnum * sizeof (void *); |
734 | ||
735 | tgt->array = NULL; | |
43895be5 | 736 | if (not_found_cnt || has_firstprivate) |
995b27b9 | 737 | { |
43895be5 | 738 | if (not_found_cnt) |
739 | tgt->array = gomp_malloc (not_found_cnt * sizeof (*tgt->array)); | |
995b27b9 | 740 | splay_tree_node array = tgt->array; |
43895be5 | 741 | size_t j, field_tgt_offset = 0, field_tgt_clear = ~(size_t) 0; |
742 | uintptr_t field_tgt_base = 0; | |
995b27b9 | 743 | |
744 | for (i = 0; i < mapnum; i++) | |
43895be5 | 745 | if (tgt->list[i].key == NULL) |
995b27b9 | 746 | { |
43895be5 | 747 | int kind = get_kind (short_mapkind, kinds, i); |
995b27b9 | 748 | if (hostaddrs[i] == NULL) |
749 | continue; | |
43895be5 | 750 | switch (kind & typemask) |
751 | { | |
752 | size_t align, len, first, last; | |
753 | splay_tree_key n; | |
754 | case GOMP_MAP_FIRSTPRIVATE: | |
755 | align = (size_t) 1 << (kind >> rshift); | |
756 | tgt_size = (tgt_size + align - 1) & ~(align - 1); | |
757 | tgt->list[i].offset = tgt_size; | |
758 | len = sizes[i]; | |
9b50ad1d | 759 | gomp_copy_host2dev (devicep, |
760 | (void *) (tgt->tgt_start + tgt_size), | |
5af416bd | 761 | (void *) hostaddrs[i], len, cbufp); |
43895be5 | 762 | tgt_size += len; |
763 | continue; | |
764 | case GOMP_MAP_FIRSTPRIVATE_INT: | |
765 | case GOMP_MAP_USE_DEVICE_PTR: | |
766 | case GOMP_MAP_ZERO_LEN_ARRAY_SECTION: | |
767 | continue; | |
768 | case GOMP_MAP_STRUCT: | |
769 | first = i + 1; | |
770 | last = i + sizes[i]; | |
771 | cur_node.host_start = (uintptr_t) hostaddrs[i]; | |
772 | cur_node.host_end = (uintptr_t) hostaddrs[last] | |
773 | + sizes[last]; | |
774 | if (tgt->list[first].key != NULL) | |
775 | continue; | |
776 | n = splay_tree_lookup (mem_map, &cur_node); | |
777 | if (n == NULL) | |
778 | { | |
779 | size_t align = (size_t) 1 << (kind >> rshift); | |
780 | tgt_size -= (uintptr_t) hostaddrs[first] | |
781 | - (uintptr_t) hostaddrs[i]; | |
782 | tgt_size = (tgt_size + align - 1) & ~(align - 1); | |
783 | tgt_size += (uintptr_t) hostaddrs[first] | |
784 | - (uintptr_t) hostaddrs[i]; | |
785 | field_tgt_base = (uintptr_t) hostaddrs[first]; | |
786 | field_tgt_offset = tgt_size; | |
787 | field_tgt_clear = last; | |
788 | tgt_size += cur_node.host_end | |
789 | - (uintptr_t) hostaddrs[first]; | |
790 | continue; | |
791 | } | |
792 | for (i = first; i <= last; i++) | |
793 | gomp_map_fields_existing (tgt, n, first, i, hostaddrs, | |
5af416bd | 794 | sizes, kinds, cbufp); |
43895be5 | 795 | i--; |
796 | continue; | |
9561765e | 797 | case GOMP_MAP_ALWAYS_POINTER: |
798 | cur_node.host_start = (uintptr_t) hostaddrs[i]; | |
799 | cur_node.host_end = cur_node.host_start + sizeof (void *); | |
800 | n = splay_tree_lookup (mem_map, &cur_node); | |
801 | if (n == NULL | |
802 | || n->host_start > cur_node.host_start | |
803 | || n->host_end < cur_node.host_end) | |
804 | { | |
805 | gomp_mutex_unlock (&devicep->lock); | |
806 | gomp_fatal ("always pointer not mapped"); | |
807 | } | |
808 | if ((get_kind (short_mapkind, kinds, i - 1) & typemask) | |
809 | != GOMP_MAP_ALWAYS_POINTER) | |
810 | cur_node.tgt_offset = gomp_map_val (tgt, hostaddrs, i - 1); | |
811 | if (cur_node.tgt_offset) | |
812 | cur_node.tgt_offset -= sizes[i]; | |
9b50ad1d | 813 | gomp_copy_host2dev (devicep, |
814 | (void *) (n->tgt->tgt_start | |
815 | + n->tgt_offset | |
816 | + cur_node.host_start | |
817 | - n->host_start), | |
818 | (void *) &cur_node.tgt_offset, | |
5af416bd | 819 | sizeof (void *), cbufp); |
9561765e | 820 | cur_node.tgt_offset = n->tgt->tgt_start + n->tgt_offset |
821 | + cur_node.host_start - n->host_start; | |
822 | continue; | |
43895be5 | 823 | default: |
824 | break; | |
825 | } | |
995b27b9 | 826 | splay_tree_key k = &array->key; |
827 | k->host_start = (uintptr_t) hostaddrs[i]; | |
ca4c3545 | 828 | if (!GOMP_MAP_POINTER_P (kind & typemask)) |
995b27b9 | 829 | k->host_end = k->host_start + sizes[i]; |
830 | else | |
831 | k->host_end = k->host_start + sizeof (void *); | |
0d8c703d | 832 | splay_tree_key n = splay_tree_lookup (mem_map, k); |
c0998828 | 833 | if (n && n->refcount != REFCOUNT_LINK) |
43895be5 | 834 | gomp_map_vars_existing (devicep, n, k, &tgt->list[i], |
5af416bd | 835 | kind & typemask, cbufp); |
995b27b9 | 836 | else |
837 | { | |
c0998828 | 838 | k->link_key = NULL; |
839 | if (n && n->refcount == REFCOUNT_LINK) | |
840 | { | |
841 | /* Replace target address of the pointer with target address | |
842 | of mapped object in the splay tree. */ | |
843 | splay_tree_remove (mem_map, n); | |
844 | k->link_key = n; | |
845 | } | |
ca4c3545 | 846 | size_t align = (size_t) 1 << (kind >> rshift); |
43895be5 | 847 | tgt->list[i].key = k; |
995b27b9 | 848 | k->tgt = tgt; |
43895be5 | 849 | if (field_tgt_clear != ~(size_t) 0) |
850 | { | |
851 | k->tgt_offset = k->host_start - field_tgt_base | |
852 | + field_tgt_offset; | |
853 | if (i == field_tgt_clear) | |
854 | field_tgt_clear = ~(size_t) 0; | |
855 | } | |
856 | else | |
857 | { | |
858 | tgt_size = (tgt_size + align - 1) & ~(align - 1); | |
859 | k->tgt_offset = tgt_size; | |
860 | tgt_size += k->host_end - k->host_start; | |
861 | } | |
862 | tgt->list[i].copy_from = GOMP_MAP_COPY_FROM_P (kind & typemask); | |
863 | tgt->list[i].always_copy_from | |
864 | = GOMP_MAP_ALWAYS_FROM_P (kind & typemask); | |
865 | tgt->list[i].offset = 0; | |
866 | tgt->list[i].length = k->host_end - k->host_start; | |
995b27b9 | 867 | k->refcount = 1; |
737cc978 | 868 | k->dynamic_refcount = 0; |
995b27b9 | 869 | tgt->refcount++; |
870 | array->left = NULL; | |
871 | array->right = NULL; | |
0d8c703d | 872 | splay_tree_insert (mem_map, array); |
ca4c3545 | 873 | switch (kind & typemask) |
995b27b9 | 874 | { |
ca4c3545 | 875 | case GOMP_MAP_ALLOC: |
876 | case GOMP_MAP_FROM: | |
877 | case GOMP_MAP_FORCE_ALLOC: | |
878 | case GOMP_MAP_FORCE_FROM: | |
43895be5 | 879 | case GOMP_MAP_ALWAYS_FROM: |
995b27b9 | 880 | break; |
ca4c3545 | 881 | case GOMP_MAP_TO: |
882 | case GOMP_MAP_TOFROM: | |
883 | case GOMP_MAP_FORCE_TO: | |
884 | case GOMP_MAP_FORCE_TOFROM: | |
43895be5 | 885 | case GOMP_MAP_ALWAYS_TO: |
886 | case GOMP_MAP_ALWAYS_TOFROM: | |
9b50ad1d | 887 | gomp_copy_host2dev (devicep, |
888 | (void *) (tgt->tgt_start | |
889 | + k->tgt_offset), | |
890 | (void *) k->host_start, | |
5af416bd | 891 | k->host_end - k->host_start, cbufp); |
995b27b9 | 892 | break; |
ca4c3545 | 893 | case GOMP_MAP_POINTER: |
84f53106 | 894 | gomp_map_pointer (tgt, (uintptr_t) *(void **) k->host_start, |
5af416bd | 895 | k->tgt_offset, sizes[i], cbufp); |
995b27b9 | 896 | break; |
ca4c3545 | 897 | case GOMP_MAP_TO_PSET: |
9b50ad1d | 898 | gomp_copy_host2dev (devicep, |
899 | (void *) (tgt->tgt_start | |
900 | + k->tgt_offset), | |
901 | (void *) k->host_start, | |
5af416bd | 902 | k->host_end - k->host_start, cbufp); |
ca4c3545 | 903 | |
995b27b9 | 904 | for (j = i + 1; j < mapnum; j++) |
43895be5 | 905 | if (!GOMP_MAP_POINTER_P (get_kind (short_mapkind, kinds, |
906 | j) | |
ca4c3545 | 907 | & typemask)) |
995b27b9 | 908 | break; |
909 | else if ((uintptr_t) hostaddrs[j] < k->host_start | |
910 | || ((uintptr_t) hostaddrs[j] + sizeof (void *) | |
911 | > k->host_end)) | |
912 | break; | |
913 | else | |
914 | { | |
43895be5 | 915 | tgt->list[j].key = k; |
916 | tgt->list[j].copy_from = false; | |
917 | tgt->list[j].always_copy_from = false; | |
918 | if (k->refcount != REFCOUNT_INFINITY) | |
919 | k->refcount++; | |
84f53106 | 920 | gomp_map_pointer (tgt, |
921 | (uintptr_t) *(void **) hostaddrs[j], | |
922 | k->tgt_offset | |
923 | + ((uintptr_t) hostaddrs[j] | |
924 | - k->host_start), | |
5af416bd | 925 | sizes[j], cbufp); |
995b27b9 | 926 | i++; |
927 | } | |
ca4c3545 | 928 | break; |
929 | case GOMP_MAP_FORCE_PRESENT: | |
930 | { | |
931 | /* We already looked up the memory region above and it | |
932 | was missing. */ | |
933 | size_t size = k->host_end - k->host_start; | |
0d8c703d | 934 | gomp_mutex_unlock (&devicep->lock); |
2634aed9 | 935 | #ifdef HAVE_INTTYPES_H |
936 | gomp_fatal ("present clause: !acc_is_present (%p, " | |
937 | "%"PRIu64" (0x%"PRIx64"))", | |
938 | (void *) k->host_start, | |
939 | (uint64_t) size, (uint64_t) size); | |
940 | #else | |
ca4c3545 | 941 | gomp_fatal ("present clause: !acc_is_present (%p, " |
2634aed9 | 942 | "%lu (0x%lx))", (void *) k->host_start, |
943 | (unsigned long) size, (unsigned long) size); | |
944 | #endif | |
ca4c3545 | 945 | } |
946 | break; | |
947 | case GOMP_MAP_FORCE_DEVICEPTR: | |
948 | assert (k->host_end - k->host_start == sizeof (void *)); | |
9b50ad1d | 949 | gomp_copy_host2dev (devicep, |
950 | (void *) (tgt->tgt_start | |
951 | + k->tgt_offset), | |
952 | (void *) k->host_start, | |
5af416bd | 953 | sizeof (void *), cbufp); |
ca4c3545 | 954 | break; |
955 | default: | |
0d8c703d | 956 | gomp_mutex_unlock (&devicep->lock); |
ca4c3545 | 957 | gomp_fatal ("%s: unhandled kind 0x%.2x", __FUNCTION__, |
958 | kind); | |
995b27b9 | 959 | } |
c0998828 | 960 | |
961 | if (k->link_key) | |
962 | { | |
963 | /* Set link pointer on target to the device address of the | |
964 | mapped object. */ | |
965 | void *tgt_addr = (void *) (tgt->tgt_start + k->tgt_offset); | |
9d5a0b9d | 966 | /* We intentionally do not use coalescing here, as it's not |
967 | data allocated by the current call to this function. */ | |
968 | gomp_copy_host2dev (devicep, (void *) n->tgt_offset, | |
969 | &tgt_addr, sizeof (void *), NULL); | |
c0998828 | 970 | } |
995b27b9 | 971 | array++; |
972 | } | |
973 | } | |
974 | } | |
ca4c3545 | 975 | |
43895be5 | 976 | if (pragma_kind == GOMP_MAP_VARS_TARGET) |
995b27b9 | 977 | { |
978 | for (i = 0; i < mapnum; i++) | |
979 | { | |
9561765e | 980 | cur_node.tgt_offset = gomp_map_val (tgt, hostaddrs, i); |
9b50ad1d | 981 | gomp_copy_host2dev (devicep, |
982 | (void *) (tgt->tgt_start + i * sizeof (void *)), | |
5af416bd | 983 | (void *) &cur_node.tgt_offset, sizeof (void *), |
984 | cbufp); | |
995b27b9 | 985 | } |
986 | } | |
987 | ||
5af416bd | 988 | if (cbufp) |
989 | { | |
990 | long c = 0; | |
991 | for (c = 0; c < cbuf.chunk_cnt; ++c) | |
65c9e9f9 | 992 | gomp_copy_host2dev (devicep, |
993 | (void *) (tgt->tgt_start + cbuf.chunks[c].start), | |
994 | (char *) cbuf.buf + (cbuf.chunks[c].start | |
995 | - cbuf.chunks[0].start), | |
996 | cbuf.chunks[c].end - cbuf.chunks[c].start, NULL); | |
5af416bd | 997 | free (cbuf.buf); |
65c9e9f9 | 998 | cbuf.buf = NULL; |
999 | cbufp = NULL; | |
5af416bd | 1000 | } |
1001 | ||
43895be5 | 1002 | /* If the variable from "omp target enter data" map-list was already mapped, |
1003 | tgt is not needed. Otherwise tgt will be freed by gomp_unmap_vars or | |
1004 | gomp_exit_data. */ | |
1005 | if (pragma_kind == GOMP_MAP_VARS_ENTER_DATA && tgt->refcount == 0) | |
1006 | { | |
1007 | free (tgt); | |
1008 | tgt = NULL; | |
1009 | } | |
1010 | ||
0d8c703d | 1011 | gomp_mutex_unlock (&devicep->lock); |
995b27b9 | 1012 | return tgt; |
1013 | } | |
1014 | ||
1015 | static void | |
1016 | gomp_unmap_tgt (struct target_mem_desc *tgt) | |
1017 | { | |
1018 | /* Deallocate on target the tgt->tgt_start .. tgt->tgt_end region. */ | |
1019 | if (tgt->tgt_end) | |
9b50ad1d | 1020 | gomp_free_device_memory (tgt->device_descr, tgt->to_free); |
995b27b9 | 1021 | |
1022 | free (tgt->array); | |
1023 | free (tgt); | |
1024 | } | |
1025 | ||
737cc978 | 1026 | attribute_hidden bool |
1027 | gomp_remove_var (struct gomp_device_descr *devicep, splay_tree_key k) | |
1028 | { | |
1029 | bool is_tgt_unmapped = false; | |
1030 | splay_tree_remove (&devicep->mem_map, k); | |
1031 | if (k->link_key) | |
1032 | splay_tree_insert (&devicep->mem_map, (splay_tree_node) k->link_key); | |
1033 | if (k->tgt->refcount > 1) | |
1034 | k->tgt->refcount--; | |
1035 | else | |
1036 | { | |
1037 | is_tgt_unmapped = true; | |
1038 | gomp_unmap_tgt (k->tgt); | |
1039 | } | |
1040 | return is_tgt_unmapped; | |
1041 | } | |
1042 | ||
ca4c3545 | 1043 | /* Unmap variables described by TGT. If DO_COPYFROM is true, copy relevant |
1044 | variables back from device to host: if it is false, it is assumed that this | |
2bf775c0 | 1045 | has been done already. */ |
ca4c3545 | 1046 | |
1047 | attribute_hidden void | |
1048 | gomp_unmap_vars (struct target_mem_desc *tgt, bool do_copyfrom) | |
995b27b9 | 1049 | { |
1050 | struct gomp_device_descr *devicep = tgt->device_descr; | |
1051 | ||
1052 | if (tgt->list_count == 0) | |
1053 | { | |
1054 | free (tgt); | |
1055 | return; | |
1056 | } | |
1057 | ||
0d8c703d | 1058 | gomp_mutex_lock (&devicep->lock); |
f87b2900 | 1059 | if (devicep->state == GOMP_DEVICE_FINALIZED) |
1060 | { | |
1061 | gomp_mutex_unlock (&devicep->lock); | |
1062 | free (tgt->array); | |
1063 | free (tgt); | |
1064 | return; | |
1065 | } | |
ca4c3545 | 1066 | |
995b27b9 | 1067 | size_t i; |
995b27b9 | 1068 | for (i = 0; i < tgt->list_count; i++) |
43895be5 | 1069 | { |
1070 | splay_tree_key k = tgt->list[i].key; | |
1071 | if (k == NULL) | |
1072 | continue; | |
1073 | ||
1074 | bool do_unmap = false; | |
1075 | if (k->refcount > 1 && k->refcount != REFCOUNT_INFINITY) | |
1076 | k->refcount--; | |
1077 | else if (k->refcount == 1) | |
1078 | { | |
2bf775c0 | 1079 | k->refcount--; |
1080 | do_unmap = true; | |
43895be5 | 1081 | } |
1082 | ||
1083 | if ((do_unmap && do_copyfrom && tgt->list[i].copy_from) | |
1084 | || tgt->list[i].always_copy_from) | |
9b50ad1d | 1085 | gomp_copy_dev2host (devicep, |
1086 | (void *) (k->host_start + tgt->list[i].offset), | |
1087 | (void *) (k->tgt->tgt_start + k->tgt_offset | |
1088 | + tgt->list[i].offset), | |
1089 | tgt->list[i].length); | |
43895be5 | 1090 | if (do_unmap) |
737cc978 | 1091 | gomp_remove_var (devicep, k); |
43895be5 | 1092 | } |
995b27b9 | 1093 | |
1094 | if (tgt->refcount > 1) | |
1095 | tgt->refcount--; | |
1096 | else | |
1097 | gomp_unmap_tgt (tgt); | |
ca4c3545 | 1098 | |
0d8c703d | 1099 | gomp_mutex_unlock (&devicep->lock); |
995b27b9 | 1100 | } |
1101 | ||
1102 | static void | |
0d8c703d | 1103 | gomp_update (struct gomp_device_descr *devicep, size_t mapnum, void **hostaddrs, |
43895be5 | 1104 | size_t *sizes, void *kinds, bool short_mapkind) |
995b27b9 | 1105 | { |
1106 | size_t i; | |
1107 | struct splay_tree_key_s cur_node; | |
43895be5 | 1108 | const int typemask = short_mapkind ? 0xff : 0x7; |
995b27b9 | 1109 | |
1110 | if (!devicep) | |
1111 | return; | |
1112 | ||
1113 | if (mapnum == 0) | |
1114 | return; | |
1115 | ||
0d8c703d | 1116 | gomp_mutex_lock (&devicep->lock); |
f87b2900 | 1117 | if (devicep->state == GOMP_DEVICE_FINALIZED) |
1118 | { | |
1119 | gomp_mutex_unlock (&devicep->lock); | |
1120 | return; | |
1121 | } | |
1122 | ||
995b27b9 | 1123 | for (i = 0; i < mapnum; i++) |
1124 | if (sizes[i]) | |
1125 | { | |
1126 | cur_node.host_start = (uintptr_t) hostaddrs[i]; | |
1127 | cur_node.host_end = cur_node.host_start + sizes[i]; | |
0d8c703d | 1128 | splay_tree_key n = splay_tree_lookup (&devicep->mem_map, &cur_node); |
995b27b9 | 1129 | if (n) |
1130 | { | |
43895be5 | 1131 | int kind = get_kind (short_mapkind, kinds, i); |
995b27b9 | 1132 | if (n->host_start > cur_node.host_start |
1133 | || n->host_end < cur_node.host_end) | |
0d8c703d | 1134 | { |
1135 | gomp_mutex_unlock (&devicep->lock); | |
1136 | gomp_fatal ("Trying to update [%p..%p) object when " | |
1137 | "only [%p..%p) is mapped", | |
1138 | (void *) cur_node.host_start, | |
1139 | (void *) cur_node.host_end, | |
1140 | (void *) n->host_start, | |
1141 | (void *) n->host_end); | |
1142 | } | |
9b50ad1d | 1143 | |
1144 | ||
1145 | void *hostaddr = (void *) cur_node.host_start; | |
1146 | void *devaddr = (void *) (n->tgt->tgt_start + n->tgt_offset | |
1147 | + cur_node.host_start - n->host_start); | |
1148 | size_t size = cur_node.host_end - cur_node.host_start; | |
1149 | ||
ca4c3545 | 1150 | if (GOMP_MAP_COPY_TO_P (kind & typemask)) |
5af416bd | 1151 | gomp_copy_host2dev (devicep, devaddr, hostaddr, size, NULL); |
ca4c3545 | 1152 | if (GOMP_MAP_COPY_FROM_P (kind & typemask)) |
9b50ad1d | 1153 | gomp_copy_dev2host (devicep, hostaddr, devaddr, size); |
995b27b9 | 1154 | } |
995b27b9 | 1155 | } |
0d8c703d | 1156 | gomp_mutex_unlock (&devicep->lock); |
1157 | } | |
1158 | ||
1159 | /* Load image pointed by TARGET_DATA to the device, specified by DEVICEP. | |
1160 | And insert to splay tree the mapping between addresses from HOST_TABLE and | |
7de5731e | 1161 | from loaded target image. We rely in the host and device compiler |
1162 | emitting variable and functions in the same order. */ | |
0d8c703d | 1163 | |
1164 | static void | |
d3d8e632 | 1165 | gomp_load_image_to_device (struct gomp_device_descr *devicep, unsigned version, |
7de5731e | 1166 | const void *host_table, const void *target_data, |
1167 | bool is_register_lock) | |
0d8c703d | 1168 | { |
1169 | void **host_func_table = ((void ***) host_table)[0]; | |
1170 | void **host_funcs_end = ((void ***) host_table)[1]; | |
1171 | void **host_var_table = ((void ***) host_table)[2]; | |
1172 | void **host_vars_end = ((void ***) host_table)[3]; | |
1173 | ||
1174 | /* The func table contains only addresses, the var table contains addresses | |
1175 | and corresponding sizes. */ | |
1176 | int num_funcs = host_funcs_end - host_func_table; | |
1177 | int num_vars = (host_vars_end - host_var_table) / 2; | |
1178 | ||
1179 | /* Load image to device and get target addresses for the image. */ | |
1180 | struct addr_pair *target_table = NULL; | |
d3d8e632 | 1181 | int i, num_target_entries; |
1182 | ||
1183 | num_target_entries | |
1184 | = devicep->load_image_func (devicep->target_id, version, | |
1185 | target_data, &target_table); | |
0d8c703d | 1186 | |
1187 | if (num_target_entries != num_funcs + num_vars) | |
1188 | { | |
1189 | gomp_mutex_unlock (&devicep->lock); | |
1190 | if (is_register_lock) | |
1191 | gomp_mutex_unlock (®ister_lock); | |
d3d8e632 | 1192 | gomp_fatal ("Cannot map target functions or variables" |
1193 | " (expected %u, have %u)", num_funcs + num_vars, | |
1194 | num_target_entries); | |
0d8c703d | 1195 | } |
1196 | ||
1197 | /* Insert host-target address mapping into splay tree. */ | |
1198 | struct target_mem_desc *tgt = gomp_malloc (sizeof (*tgt)); | |
1199 | tgt->array = gomp_malloc ((num_funcs + num_vars) * sizeof (*tgt->array)); | |
43895be5 | 1200 | tgt->refcount = REFCOUNT_INFINITY; |
0d8c703d | 1201 | tgt->tgt_start = 0; |
1202 | tgt->tgt_end = 0; | |
1203 | tgt->to_free = NULL; | |
1204 | tgt->prev = NULL; | |
1205 | tgt->list_count = 0; | |
1206 | tgt->device_descr = devicep; | |
1207 | splay_tree_node array = tgt->array; | |
1208 | ||
1209 | for (i = 0; i < num_funcs; i++) | |
1210 | { | |
1211 | splay_tree_key k = &array->key; | |
1212 | k->host_start = (uintptr_t) host_func_table[i]; | |
1213 | k->host_end = k->host_start + 1; | |
1214 | k->tgt = tgt; | |
1215 | k->tgt_offset = target_table[i].start; | |
43895be5 | 1216 | k->refcount = REFCOUNT_INFINITY; |
c0998828 | 1217 | k->link_key = NULL; |
0d8c703d | 1218 | array->left = NULL; |
1219 | array->right = NULL; | |
1220 | splay_tree_insert (&devicep->mem_map, array); | |
1221 | array++; | |
1222 | } | |
1223 | ||
c0998828 | 1224 | /* Most significant bit of the size in host and target tables marks |
1225 | "omp declare target link" variables. */ | |
1226 | const uintptr_t link_bit = 1ULL << (sizeof (uintptr_t) * __CHAR_BIT__ - 1); | |
1227 | const uintptr_t size_mask = ~link_bit; | |
1228 | ||
0d8c703d | 1229 | for (i = 0; i < num_vars; i++) |
1230 | { | |
1231 | struct addr_pair *target_var = &target_table[num_funcs + i]; | |
c0998828 | 1232 | uintptr_t target_size = target_var->end - target_var->start; |
1233 | ||
1234 | if ((uintptr_t) host_var_table[i * 2 + 1] != target_size) | |
0d8c703d | 1235 | { |
1236 | gomp_mutex_unlock (&devicep->lock); | |
1237 | if (is_register_lock) | |
1238 | gomp_mutex_unlock (®ister_lock); | |
c0998828 | 1239 | gomp_fatal ("Cannot map target variables (size mismatch)"); |
0d8c703d | 1240 | } |
1241 | ||
1242 | splay_tree_key k = &array->key; | |
1243 | k->host_start = (uintptr_t) host_var_table[i * 2]; | |
c0998828 | 1244 | k->host_end |
1245 | = k->host_start + (size_mask & (uintptr_t) host_var_table[i * 2 + 1]); | |
0d8c703d | 1246 | k->tgt = tgt; |
1247 | k->tgt_offset = target_var->start; | |
c0998828 | 1248 | k->refcount = target_size & link_bit ? REFCOUNT_LINK : REFCOUNT_INFINITY; |
c0998828 | 1249 | k->link_key = NULL; |
0d8c703d | 1250 | array->left = NULL; |
1251 | array->right = NULL; | |
1252 | splay_tree_insert (&devicep->mem_map, array); | |
1253 | array++; | |
1254 | } | |
1255 | ||
1256 | free (target_table); | |
995b27b9 | 1257 | } |
1258 | ||
7de5731e | 1259 | /* Unload the mappings described by target_data from device DEVICE_P. |
1260 | The device must be locked. */ | |
1261 | ||
1262 | static void | |
1263 | gomp_unload_image_from_device (struct gomp_device_descr *devicep, | |
d3d8e632 | 1264 | unsigned version, |
7de5731e | 1265 | const void *host_table, const void *target_data) |
1266 | { | |
1267 | void **host_func_table = ((void ***) host_table)[0]; | |
1268 | void **host_funcs_end = ((void ***) host_table)[1]; | |
1269 | void **host_var_table = ((void ***) host_table)[2]; | |
1270 | void **host_vars_end = ((void ***) host_table)[3]; | |
1271 | ||
1272 | /* The func table contains only addresses, the var table contains addresses | |
1273 | and corresponding sizes. */ | |
1274 | int num_funcs = host_funcs_end - host_func_table; | |
1275 | int num_vars = (host_vars_end - host_var_table) / 2; | |
1276 | ||
7de5731e | 1277 | struct splay_tree_key_s k; |
1278 | splay_tree_key node = NULL; | |
1279 | ||
1280 | /* Find mapping at start of node array */ | |
1281 | if (num_funcs || num_vars) | |
1282 | { | |
1283 | k.host_start = (num_funcs ? (uintptr_t) host_func_table[0] | |
1284 | : (uintptr_t) host_var_table[0]); | |
1285 | k.host_end = k.host_start + 1; | |
1286 | node = splay_tree_lookup (&devicep->mem_map, &k); | |
1287 | } | |
d3d8e632 | 1288 | |
9b50ad1d | 1289 | if (!devicep->unload_image_func (devicep->target_id, version, target_data)) |
1290 | { | |
1291 | gomp_mutex_unlock (&devicep->lock); | |
1292 | gomp_fatal ("image unload fail"); | |
1293 | } | |
7de5731e | 1294 | |
1295 | /* Remove mappings from splay tree. */ | |
c0998828 | 1296 | int i; |
1297 | for (i = 0; i < num_funcs; i++) | |
7de5731e | 1298 | { |
c0998828 | 1299 | k.host_start = (uintptr_t) host_func_table[i]; |
7de5731e | 1300 | k.host_end = k.host_start + 1; |
1301 | splay_tree_remove (&devicep->mem_map, &k); | |
1302 | } | |
1303 | ||
c0998828 | 1304 | /* Most significant bit of the size in host and target tables marks |
1305 | "omp declare target link" variables. */ | |
1306 | const uintptr_t link_bit = 1ULL << (sizeof (uintptr_t) * __CHAR_BIT__ - 1); | |
1307 | const uintptr_t size_mask = ~link_bit; | |
1308 | bool is_tgt_unmapped = false; | |
1309 | ||
1310 | for (i = 0; i < num_vars; i++) | |
7de5731e | 1311 | { |
c0998828 | 1312 | k.host_start = (uintptr_t) host_var_table[i * 2]; |
1313 | k.host_end | |
1314 | = k.host_start + (size_mask & (uintptr_t) host_var_table[i * 2 + 1]); | |
1315 | ||
1316 | if (!(link_bit & (uintptr_t) host_var_table[i * 2 + 1])) | |
1317 | splay_tree_remove (&devicep->mem_map, &k); | |
1318 | else | |
1319 | { | |
1320 | splay_tree_key n = splay_tree_lookup (&devicep->mem_map, &k); | |
737cc978 | 1321 | is_tgt_unmapped = gomp_remove_var (devicep, n); |
c0998828 | 1322 | } |
7de5731e | 1323 | } |
1324 | ||
c0998828 | 1325 | if (node && !is_tgt_unmapped) |
7de5731e | 1326 | { |
1327 | free (node->tgt); | |
1328 | free (node); | |
1329 | } | |
1330 | } | |
1331 | ||
0d8c703d | 1332 | /* This function should be called from every offload image while loading. |
995b27b9 | 1333 | It gets the descriptor of the host func and var tables HOST_TABLE, TYPE of |
1334 | the target, and TARGET_DATA needed by target plugin. */ | |
1335 | ||
1336 | void | |
d3d8e632 | 1337 | GOMP_offload_register_ver (unsigned version, const void *host_table, |
1338 | int target_type, const void *target_data) | |
995b27b9 | 1339 | { |
0d8c703d | 1340 | int i; |
d3d8e632 | 1341 | |
1342 | if (GOMP_VERSION_LIB (version) > GOMP_VERSION) | |
1343 | gomp_fatal ("Library too old for offload (version %u < %u)", | |
1344 | GOMP_VERSION, GOMP_VERSION_LIB (version)); | |
1345 | ||
0d8c703d | 1346 | gomp_mutex_lock (®ister_lock); |
1347 | ||
1348 | /* Load image to all initialized devices. */ | |
1349 | for (i = 0; i < num_devices; i++) | |
1350 | { | |
1351 | struct gomp_device_descr *devicep = &devices[i]; | |
1352 | gomp_mutex_lock (&devicep->lock); | |
f87b2900 | 1353 | if (devicep->type == target_type |
1354 | && devicep->state == GOMP_DEVICE_INITIALIZED) | |
d3d8e632 | 1355 | gomp_load_image_to_device (devicep, version, |
1356 | host_table, target_data, true); | |
0d8c703d | 1357 | gomp_mutex_unlock (&devicep->lock); |
1358 | } | |
995b27b9 | 1359 | |
0d8c703d | 1360 | /* Insert image to array of pending images. */ |
1361 | offload_images | |
1362 | = gomp_realloc_unlock (offload_images, | |
1363 | (num_offload_images + 1) | |
1364 | * sizeof (struct offload_image_descr)); | |
d3d8e632 | 1365 | offload_images[num_offload_images].version = version; |
995b27b9 | 1366 | offload_images[num_offload_images].type = target_type; |
1367 | offload_images[num_offload_images].host_table = host_table; | |
1368 | offload_images[num_offload_images].target_data = target_data; | |
1369 | ||
1370 | num_offload_images++; | |
0d8c703d | 1371 | gomp_mutex_unlock (®ister_lock); |
995b27b9 | 1372 | } |
1373 | ||
d3d8e632 | 1374 | void |
1375 | GOMP_offload_register (const void *host_table, int target_type, | |
1376 | const void *target_data) | |
1377 | { | |
1378 | GOMP_offload_register_ver (0, host_table, target_type, target_data); | |
1379 | } | |
1380 | ||
0d8c703d | 1381 | /* This function should be called from every offload image while unloading. |
1382 | It gets the descriptor of the host func and var tables HOST_TABLE, TYPE of | |
1383 | the target, and TARGET_DATA needed by target plugin. */ | |
995b27b9 | 1384 | |
0d8c703d | 1385 | void |
d3d8e632 | 1386 | GOMP_offload_unregister_ver (unsigned version, const void *host_table, |
1387 | int target_type, const void *target_data) | |
995b27b9 | 1388 | { |
0d8c703d | 1389 | int i; |
1390 | ||
0d8c703d | 1391 | gomp_mutex_lock (®ister_lock); |
1392 | ||
1393 | /* Unload image from all initialized devices. */ | |
1394 | for (i = 0; i < num_devices; i++) | |
1395 | { | |
0d8c703d | 1396 | struct gomp_device_descr *devicep = &devices[i]; |
1397 | gomp_mutex_lock (&devicep->lock); | |
f87b2900 | 1398 | if (devicep->type == target_type |
1399 | && devicep->state == GOMP_DEVICE_INITIALIZED) | |
d3d8e632 | 1400 | gomp_unload_image_from_device (devicep, version, |
1401 | host_table, target_data); | |
0d8c703d | 1402 | gomp_mutex_unlock (&devicep->lock); |
1403 | } | |
1404 | ||
1405 | /* Remove image from array of pending images. */ | |
1406 | for (i = 0; i < num_offload_images; i++) | |
1407 | if (offload_images[i].target_data == target_data) | |
1408 | { | |
1409 | offload_images[i] = offload_images[--num_offload_images]; | |
1410 | break; | |
1411 | } | |
1412 | ||
1413 | gomp_mutex_unlock (®ister_lock); | |
ca4c3545 | 1414 | } |
995b27b9 | 1415 | |
d3d8e632 | 1416 | void |
1417 | GOMP_offload_unregister (const void *host_table, int target_type, | |
1418 | const void *target_data) | |
1419 | { | |
1420 | GOMP_offload_unregister_ver (0, host_table, target_type, target_data); | |
1421 | } | |
1422 | ||
0d8c703d | 1423 | /* This function initializes the target device, specified by DEVICEP. DEVICEP |
1424 | must be locked on entry, and remains locked on return. */ | |
ca4c3545 | 1425 | |
1426 | attribute_hidden void | |
0d8c703d | 1427 | gomp_init_device (struct gomp_device_descr *devicep) |
ca4c3545 | 1428 | { |
995b27b9 | 1429 | int i; |
9b50ad1d | 1430 | if (!devicep->init_device_func (devicep->target_id)) |
1431 | { | |
1432 | gomp_mutex_unlock (&devicep->lock); | |
1433 | gomp_fatal ("device initialization failed"); | |
1434 | } | |
0d8c703d | 1435 | |
1436 | /* Load to device all images registered by the moment. */ | |
1437 | for (i = 0; i < num_offload_images; i++) | |
995b27b9 | 1438 | { |
0d8c703d | 1439 | struct offload_image_descr *image = &offload_images[i]; |
1440 | if (image->type == devicep->type) | |
d3d8e632 | 1441 | gomp_load_image_to_device (devicep, image->version, |
1442 | image->host_table, image->target_data, | |
1443 | false); | |
995b27b9 | 1444 | } |
1445 | ||
f87b2900 | 1446 | devicep->state = GOMP_DEVICE_INITIALIZED; |
ca4c3545 | 1447 | } |
1448 | ||
7de5731e | 1449 | attribute_hidden void |
1450 | gomp_unload_device (struct gomp_device_descr *devicep) | |
1451 | { | |
f87b2900 | 1452 | if (devicep->state == GOMP_DEVICE_INITIALIZED) |
7de5731e | 1453 | { |
1454 | unsigned i; | |
1455 | ||
1456 | /* Unload from device all images registered at the moment. */ | |
1457 | for (i = 0; i < num_offload_images; i++) | |
1458 | { | |
1459 | struct offload_image_descr *image = &offload_images[i]; | |
1460 | if (image->type == devicep->type) | |
d3d8e632 | 1461 | gomp_unload_image_from_device (devicep, image->version, |
1462 | image->host_table, | |
7de5731e | 1463 | image->target_data); |
1464 | } | |
1465 | } | |
1466 | } | |
1467 | ||
ca4c3545 | 1468 | /* Free address mapping tables. MM must be locked on entry, and remains locked |
1469 | on return. */ | |
1470 | ||
1471 | attribute_hidden void | |
0d8c703d | 1472 | gomp_free_memmap (struct splay_tree_s *mem_map) |
ca4c3545 | 1473 | { |
0d8c703d | 1474 | while (mem_map->root) |
ca4c3545 | 1475 | { |
0d8c703d | 1476 | struct target_mem_desc *tgt = mem_map->root->key.tgt; |
ca4c3545 | 1477 | |
0d8c703d | 1478 | splay_tree_remove (mem_map, &mem_map->root->key); |
ca4c3545 | 1479 | free (tgt->array); |
1480 | free (tgt); | |
1481 | } | |
ca4c3545 | 1482 | } |
1483 | ||
9561765e | 1484 | /* Host fallback for GOMP_target{,_ext} routines. */ |
43895be5 | 1485 | |
1486 | static void | |
1487 | gomp_target_fallback (void (*fn) (void *), void **hostaddrs) | |
1488 | { | |
1489 | struct gomp_thread old_thr, *thr = gomp_thread (); | |
1490 | old_thr = *thr; | |
1491 | memset (thr, '\0', sizeof (*thr)); | |
1492 | if (gomp_places_list) | |
1493 | { | |
1494 | thr->place = old_thr.place; | |
1495 | thr->ts.place_partition_len = gomp_places_list_len; | |
1496 | } | |
1497 | fn (hostaddrs); | |
1498 | gomp_free_thread (thr); | |
1499 | *thr = old_thr; | |
1500 | } | |
1501 | ||
56686608 | 1502 | /* Calculate alignment and size requirements of a private copy of data shared |
1503 | as GOMP_MAP_FIRSTPRIVATE and store them to TGT_ALIGN and TGT_SIZE. */ | |
9561765e | 1504 | |
56686608 | 1505 | static inline void |
1506 | calculate_firstprivate_requirements (size_t mapnum, size_t *sizes, | |
1507 | unsigned short *kinds, size_t *tgt_align, | |
1508 | size_t *tgt_size) | |
9561765e | 1509 | { |
56686608 | 1510 | size_t i; |
1511 | for (i = 0; i < mapnum; i++) | |
1512 | if ((kinds[i] & 0xff) == GOMP_MAP_FIRSTPRIVATE) | |
1513 | { | |
1514 | size_t align = (size_t) 1 << (kinds[i] >> 8); | |
1515 | if (*tgt_align < align) | |
1516 | *tgt_align = align; | |
1517 | *tgt_size = (*tgt_size + align - 1) & ~(align - 1); | |
1518 | *tgt_size += sizes[i]; | |
1519 | } | |
1520 | } | |
1521 | ||
1522 | /* Copy data shared as GOMP_MAP_FIRSTPRIVATE to DST. */ | |
1523 | ||
1524 | static inline void | |
1525 | copy_firstprivate_data (char *tgt, size_t mapnum, void **hostaddrs, | |
1526 | size_t *sizes, unsigned short *kinds, size_t tgt_align, | |
1527 | size_t tgt_size) | |
1528 | { | |
1529 | uintptr_t al = (uintptr_t) tgt & (tgt_align - 1); | |
1530 | if (al) | |
1531 | tgt += tgt_align - al; | |
1532 | tgt_size = 0; | |
1533 | size_t i; | |
9561765e | 1534 | for (i = 0; i < mapnum; i++) |
1535 | if ((kinds[i] & 0xff) == GOMP_MAP_FIRSTPRIVATE) | |
1536 | { | |
1537 | size_t align = (size_t) 1 << (kinds[i] >> 8); | |
9561765e | 1538 | tgt_size = (tgt_size + align - 1) & ~(align - 1); |
56686608 | 1539 | memcpy (tgt + tgt_size, hostaddrs[i], sizes[i]); |
1540 | hostaddrs[i] = tgt + tgt_size; | |
1541 | tgt_size = tgt_size + sizes[i]; | |
9561765e | 1542 | } |
56686608 | 1543 | } |
1544 | ||
9561765e | 1545 | /* Helper function of GOMP_target{,_ext} routines. */ |
43895be5 | 1546 | |
1547 | static void * | |
1548 | gomp_get_target_fn_addr (struct gomp_device_descr *devicep, | |
1549 | void (*host_fn) (void *)) | |
1550 | { | |
1551 | if (devicep->capabilities & GOMP_OFFLOAD_CAP_NATIVE_EXEC) | |
1552 | return (void *) host_fn; | |
1553 | else | |
1554 | { | |
1555 | gomp_mutex_lock (&devicep->lock); | |
f87b2900 | 1556 | if (devicep->state == GOMP_DEVICE_FINALIZED) |
1557 | { | |
1558 | gomp_mutex_unlock (&devicep->lock); | |
1559 | return NULL; | |
1560 | } | |
1561 | ||
43895be5 | 1562 | struct splay_tree_key_s k; |
1563 | k.host_start = (uintptr_t) host_fn; | |
1564 | k.host_end = k.host_start + 1; | |
1565 | splay_tree_key tgt_fn = splay_tree_lookup (&devicep->mem_map, &k); | |
1566 | gomp_mutex_unlock (&devicep->lock); | |
1567 | if (tgt_fn == NULL) | |
bc6edebb | 1568 | return NULL; |
43895be5 | 1569 | |
1570 | return (void *) tgt_fn->tgt_offset; | |
1571 | } | |
1572 | } | |
1573 | ||
bc7bff74 | 1574 | /* Called when encountering a target directive. If DEVICE |
ca4c3545 | 1575 | is GOMP_DEVICE_ICV, it means use device-var ICV. If it is |
1576 | GOMP_DEVICE_HOST_FALLBACK (or any value | |
1577 | larger than last available hw device), use host fallback. | |
dc19c8fd | 1578 | FN is address of host code, UNUSED is part of the current ABI, but |
1579 | we're not actually using it. HOSTADDRS, SIZES and KINDS are arrays | |
bc7bff74 | 1580 | with MAPNUM entries, with addresses of the host objects, |
1581 | sizes of the host objects (resp. for pointer kind pointer bias | |
1582 | and assumed sizeof (void *) size) and kinds. */ | |
1583 | ||
1584 | void | |
dc19c8fd | 1585 | GOMP_target (int device, void (*fn) (void *), const void *unused, |
bc7bff74 | 1586 | size_t mapnum, void **hostaddrs, size_t *sizes, |
1587 | unsigned char *kinds) | |
1588 | { | |
995b27b9 | 1589 | struct gomp_device_descr *devicep = resolve_device (device); |
ca4c3545 | 1590 | |
f87b2900 | 1591 | void *fn_addr; |
ca4c3545 | 1592 | if (devicep == NULL |
f87b2900 | 1593 | || !(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
56686608 | 1594 | /* All shared memory devices should use the GOMP_target_ext function. */ |
1595 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM | |
f87b2900 | 1596 | || !(fn_addr = gomp_get_target_fn_addr (devicep, fn))) |
43895be5 | 1597 | return gomp_target_fallback (fn, hostaddrs); |
1598 | ||
43895be5 | 1599 | struct target_mem_desc *tgt_vars |
1600 | = gomp_map_vars (devicep, mapnum, hostaddrs, NULL, sizes, kinds, false, | |
1601 | GOMP_MAP_VARS_TARGET); | |
56686608 | 1602 | devicep->run_func (devicep->target_id, fn_addr, (void *) tgt_vars->tgt_start, |
1603 | NULL); | |
43895be5 | 1604 | gomp_unmap_vars (tgt_vars, true); |
1605 | } | |
995b27b9 | 1606 | |
9561765e | 1607 | /* Like GOMP_target, but KINDS is 16-bit, UNUSED is no longer present, |
1608 | and several arguments have been added: | |
1609 | FLAGS is a bitmask, see GOMP_TARGET_FLAG_* in gomp-constants.h. | |
1610 | DEPEND is array of dependencies, see GOMP_task for details. | |
56686608 | 1611 | |
1612 | ARGS is a pointer to an array consisting of a variable number of both | |
1613 | device-independent and device-specific arguments, which can take one two | |
1614 | elements where the first specifies for which device it is intended, the type | |
1615 | and optionally also the value. If the value is not present in the first | |
1616 | one, the whole second element the actual value. The last element of the | |
1617 | array is a single NULL. Among the device independent can be for example | |
1618 | NUM_TEAMS and THREAD_LIMIT. | |
1619 | ||
9561765e | 1620 | NUM_TEAMS is positive if GOMP_teams will be called in the body with |
1621 | that value, or 1 if teams construct is not present, or 0, if | |
1622 | teams construct does not have num_teams clause and so the choice is | |
1623 | implementation defined, and -1 if it can't be determined on the host | |
1624 | what value will GOMP_teams have on the device. | |
1625 | THREAD_LIMIT similarly is positive if GOMP_teams will be called in the | |
1626 | body with that value, or 0, if teams construct does not have thread_limit | |
1627 | clause or the teams construct is not present, or -1 if it can't be | |
1628 | determined on the host what value will GOMP_teams have on the device. */ | |
1629 | ||
43895be5 | 1630 | void |
9561765e | 1631 | GOMP_target_ext (int device, void (*fn) (void *), size_t mapnum, |
1632 | void **hostaddrs, size_t *sizes, unsigned short *kinds, | |
56686608 | 1633 | unsigned int flags, void **depend, void **args) |
43895be5 | 1634 | { |
1635 | struct gomp_device_descr *devicep = resolve_device (device); | |
84217e9d | 1636 | size_t tgt_align = 0, tgt_size = 0; |
1637 | bool fpc_done = false; | |
ca4c3545 | 1638 | |
a9833286 | 1639 | if (flags & GOMP_TARGET_FLAG_NOWAIT) |
1640 | { | |
1641 | struct gomp_thread *thr = gomp_thread (); | |
1642 | /* Create a team if we don't have any around, as nowait | |
1643 | target tasks make sense to run asynchronously even when | |
1644 | outside of any parallel. */ | |
1645 | if (__builtin_expect (thr->ts.team == NULL, 0)) | |
1646 | { | |
1647 | struct gomp_team *team = gomp_new_team (1); | |
1648 | struct gomp_task *task = thr->task; | |
1649 | struct gomp_task_icv *icv = task ? &task->icv : &gomp_global_icv; | |
1650 | team->prev_ts = thr->ts; | |
1651 | thr->ts.team = team; | |
1652 | thr->ts.team_id = 0; | |
1653 | thr->ts.work_share = &team->work_shares[0]; | |
1654 | thr->ts.last_work_share = NULL; | |
1655 | #ifdef HAVE_SYNC_BUILTINS | |
1656 | thr->ts.single_count = 0; | |
1657 | #endif | |
1658 | thr->ts.static_trip = 0; | |
1659 | thr->task = &team->implicit_task[0]; | |
1660 | gomp_init_task (thr->task, NULL, icv); | |
1661 | if (task) | |
1662 | { | |
1663 | thr->task = task; | |
1664 | gomp_end_task (); | |
1665 | free (task); | |
1666 | thr->task = &team->implicit_task[0]; | |
1667 | } | |
1668 | else | |
1669 | pthread_setspecific (gomp_thread_destructor, thr); | |
1670 | } | |
1671 | if (thr->ts.team | |
1672 | && !thr->task->final_task) | |
1673 | { | |
1674 | gomp_create_target_task (devicep, fn, mapnum, hostaddrs, | |
56686608 | 1675 | sizes, kinds, flags, depend, args, |
a9833286 | 1676 | GOMP_TARGET_TASK_BEFORE_MAP); |
1677 | return; | |
1678 | } | |
1679 | } | |
1680 | ||
1681 | /* If there are depend clauses, but nowait is not present | |
1682 | (or we are in a final task), block the parent task until the | |
1683 | dependencies are resolved and then just continue with the rest | |
1684 | of the function as if it is a merged task. */ | |
43895be5 | 1685 | if (depend != NULL) |
1686 | { | |
1687 | struct gomp_thread *thr = gomp_thread (); | |
1688 | if (thr->task && thr->task->depend_hash) | |
84217e9d | 1689 | { |
1690 | /* If we might need to wait, copy firstprivate now. */ | |
1691 | calculate_firstprivate_requirements (mapnum, sizes, kinds, | |
1692 | &tgt_align, &tgt_size); | |
1693 | if (tgt_align) | |
1694 | { | |
1695 | char *tgt = gomp_alloca (tgt_size + tgt_align - 1); | |
1696 | copy_firstprivate_data (tgt, mapnum, hostaddrs, sizes, kinds, | |
1697 | tgt_align, tgt_size); | |
1698 | } | |
1699 | fpc_done = true; | |
1700 | gomp_task_maybe_wait_for_dependencies (depend); | |
1701 | } | |
43895be5 | 1702 | } |
ca4c3545 | 1703 | |
f87b2900 | 1704 | void *fn_addr; |
43895be5 | 1705 | if (devicep == NULL |
f87b2900 | 1706 | || !(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
56686608 | 1707 | || !(fn_addr = gomp_get_target_fn_addr (devicep, fn)) |
1708 | || (devicep->can_run_func && !devicep->can_run_func (fn_addr))) | |
ca4c3545 | 1709 | { |
84217e9d | 1710 | if (!fpc_done) |
1711 | { | |
1712 | calculate_firstprivate_requirements (mapnum, sizes, kinds, | |
1713 | &tgt_align, &tgt_size); | |
1714 | if (tgt_align) | |
1715 | { | |
1716 | char *tgt = gomp_alloca (tgt_size + tgt_align - 1); | |
1717 | copy_firstprivate_data (tgt, mapnum, hostaddrs, sizes, kinds, | |
1718 | tgt_align, tgt_size); | |
1719 | } | |
1720 | } | |
1721 | gomp_target_fallback (fn, hostaddrs); | |
43895be5 | 1722 | return; |
ca4c3545 | 1723 | } |
995b27b9 | 1724 | |
56686608 | 1725 | struct target_mem_desc *tgt_vars; |
56686608 | 1726 | if (devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) |
1727 | { | |
84217e9d | 1728 | if (!fpc_done) |
1729 | { | |
1730 | calculate_firstprivate_requirements (mapnum, sizes, kinds, | |
1731 | &tgt_align, &tgt_size); | |
1732 | if (tgt_align) | |
1733 | { | |
1734 | char *tgt = gomp_alloca (tgt_size + tgt_align - 1); | |
1735 | copy_firstprivate_data (tgt, mapnum, hostaddrs, sizes, kinds, | |
1736 | tgt_align, tgt_size); | |
1737 | } | |
1738 | } | |
56686608 | 1739 | tgt_vars = NULL; |
1740 | } | |
1741 | else | |
1742 | tgt_vars = gomp_map_vars (devicep, mapnum, hostaddrs, NULL, sizes, kinds, | |
1743 | true, GOMP_MAP_VARS_TARGET); | |
1744 | devicep->run_func (devicep->target_id, fn_addr, | |
1745 | tgt_vars ? (void *) tgt_vars->tgt_start : hostaddrs, | |
1746 | args); | |
1747 | if (tgt_vars) | |
1748 | gomp_unmap_vars (tgt_vars, true); | |
bc7bff74 | 1749 | } |
1750 | ||
9561765e | 1751 | /* Host fallback for GOMP_target_data{,_ext} routines. */ |
43895be5 | 1752 | |
1753 | static void | |
1754 | gomp_target_data_fallback (void) | |
1755 | { | |
1756 | struct gomp_task_icv *icv = gomp_icv (false); | |
1757 | if (icv->target_data) | |
1758 | { | |
1759 | /* Even when doing a host fallback, if there are any active | |
1760 | #pragma omp target data constructs, need to remember the | |
1761 | new #pragma omp target data, otherwise GOMP_target_end_data | |
1762 | would get out of sync. */ | |
1763 | struct target_mem_desc *tgt | |
1764 | = gomp_map_vars (NULL, 0, NULL, NULL, NULL, NULL, false, | |
1765 | GOMP_MAP_VARS_DATA); | |
1766 | tgt->prev = icv->target_data; | |
1767 | icv->target_data = tgt; | |
1768 | } | |
1769 | } | |
1770 | ||
bc7bff74 | 1771 | void |
dc19c8fd | 1772 | GOMP_target_data (int device, const void *unused, size_t mapnum, |
bc7bff74 | 1773 | void **hostaddrs, size_t *sizes, unsigned char *kinds) |
1774 | { | |
995b27b9 | 1775 | struct gomp_device_descr *devicep = resolve_device (device); |
ca4c3545 | 1776 | |
1777 | if (devicep == NULL | |
56686608 | 1778 | || !(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
1779 | || (devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM)) | |
43895be5 | 1780 | return gomp_target_data_fallback (); |
ca4c3545 | 1781 | |
995b27b9 | 1782 | struct target_mem_desc *tgt |
ca4c3545 | 1783 | = gomp_map_vars (devicep, mapnum, hostaddrs, NULL, sizes, kinds, false, |
43895be5 | 1784 | GOMP_MAP_VARS_DATA); |
1785 | struct gomp_task_icv *icv = gomp_icv (true); | |
1786 | tgt->prev = icv->target_data; | |
1787 | icv->target_data = tgt; | |
1788 | } | |
1789 | ||
1790 | void | |
9561765e | 1791 | GOMP_target_data_ext (int device, size_t mapnum, void **hostaddrs, |
1792 | size_t *sizes, unsigned short *kinds) | |
43895be5 | 1793 | { |
1794 | struct gomp_device_descr *devicep = resolve_device (device); | |
1795 | ||
1796 | if (devicep == NULL | |
56686608 | 1797 | || !(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
1798 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
43895be5 | 1799 | return gomp_target_data_fallback (); |
1800 | ||
1801 | struct target_mem_desc *tgt | |
1802 | = gomp_map_vars (devicep, mapnum, hostaddrs, NULL, sizes, kinds, true, | |
1803 | GOMP_MAP_VARS_DATA); | |
995b27b9 | 1804 | struct gomp_task_icv *icv = gomp_icv (true); |
1805 | tgt->prev = icv->target_data; | |
1806 | icv->target_data = tgt; | |
bc7bff74 | 1807 | } |
1808 | ||
1809 | void | |
1810 | GOMP_target_end_data (void) | |
1811 | { | |
995b27b9 | 1812 | struct gomp_task_icv *icv = gomp_icv (false); |
1813 | if (icv->target_data) | |
1814 | { | |
1815 | struct target_mem_desc *tgt = icv->target_data; | |
1816 | icv->target_data = tgt->prev; | |
ca4c3545 | 1817 | gomp_unmap_vars (tgt, true); |
995b27b9 | 1818 | } |
bc7bff74 | 1819 | } |
1820 | ||
1821 | void | |
dc19c8fd | 1822 | GOMP_target_update (int device, const void *unused, size_t mapnum, |
bc7bff74 | 1823 | void **hostaddrs, size_t *sizes, unsigned char *kinds) |
1824 | { | |
995b27b9 | 1825 | struct gomp_device_descr *devicep = resolve_device (device); |
ca4c3545 | 1826 | |
1827 | if (devicep == NULL | |
56686608 | 1828 | || !(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
1829 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
995b27b9 | 1830 | return; |
1831 | ||
43895be5 | 1832 | gomp_update (devicep, mapnum, hostaddrs, sizes, kinds, false); |
1833 | } | |
1834 | ||
1835 | void | |
9561765e | 1836 | GOMP_target_update_ext (int device, size_t mapnum, void **hostaddrs, |
1837 | size_t *sizes, unsigned short *kinds, | |
1838 | unsigned int flags, void **depend) | |
43895be5 | 1839 | { |
1840 | struct gomp_device_descr *devicep = resolve_device (device); | |
1841 | ||
1842 | /* If there are depend clauses, but nowait is not present, | |
1843 | block the parent task until the dependencies are resolved | |
1844 | and then just continue with the rest of the function as if it | |
1845 | is a merged task. Until we are able to schedule task during | |
1846 | variable mapping or unmapping, ignore nowait if depend clauses | |
1847 | are not present. */ | |
1848 | if (depend != NULL) | |
1849 | { | |
1850 | struct gomp_thread *thr = gomp_thread (); | |
1851 | if (thr->task && thr->task->depend_hash) | |
1852 | { | |
1853 | if ((flags & GOMP_TARGET_FLAG_NOWAIT) | |
1854 | && thr->ts.team | |
1855 | && !thr->task->final_task) | |
1856 | { | |
a9833286 | 1857 | if (gomp_create_target_task (devicep, (void (*) (void *)) NULL, |
1858 | mapnum, hostaddrs, sizes, kinds, | |
1859 | flags | GOMP_TARGET_FLAG_UPDATE, | |
56686608 | 1860 | depend, NULL, GOMP_TARGET_TASK_DATA)) |
a9833286 | 1861 | return; |
1862 | } | |
1863 | else | |
1864 | { | |
1865 | struct gomp_team *team = thr->ts.team; | |
1866 | /* If parallel or taskgroup has been cancelled, don't start new | |
1867 | tasks. */ | |
7e5a76c8 | 1868 | if (__builtin_expect (gomp_cancel_var, 0) && team) |
1869 | { | |
1870 | if (gomp_team_barrier_cancelled (&team->barrier)) | |
1871 | return; | |
1872 | if (thr->task->taskgroup) | |
1873 | { | |
1874 | if (thr->task->taskgroup->cancelled) | |
1875 | return; | |
1876 | if (thr->task->taskgroup->workshare | |
1877 | && thr->task->taskgroup->prev | |
1878 | && thr->task->taskgroup->prev->cancelled) | |
1879 | return; | |
1880 | } | |
1881 | } | |
a9833286 | 1882 | |
1883 | gomp_task_maybe_wait_for_dependencies (depend); | |
43895be5 | 1884 | } |
43895be5 | 1885 | } |
1886 | } | |
1887 | ||
1888 | if (devicep == NULL | |
56686608 | 1889 | || !(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
1890 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
43895be5 | 1891 | return; |
1892 | ||
1893 | struct gomp_thread *thr = gomp_thread (); | |
1894 | struct gomp_team *team = thr->ts.team; | |
1895 | /* If parallel or taskgroup has been cancelled, don't start new tasks. */ | |
7e5a76c8 | 1896 | if (__builtin_expect (gomp_cancel_var, 0) && team) |
1897 | { | |
1898 | if (gomp_team_barrier_cancelled (&team->barrier)) | |
1899 | return; | |
1900 | if (thr->task->taskgroup) | |
1901 | { | |
1902 | if (thr->task->taskgroup->cancelled) | |
1903 | return; | |
1904 | if (thr->task->taskgroup->workshare | |
1905 | && thr->task->taskgroup->prev | |
1906 | && thr->task->taskgroup->prev->cancelled) | |
1907 | return; | |
1908 | } | |
1909 | } | |
43895be5 | 1910 | |
1911 | gomp_update (devicep, mapnum, hostaddrs, sizes, kinds, true); | |
1912 | } | |
1913 | ||
1914 | static void | |
1915 | gomp_exit_data (struct gomp_device_descr *devicep, size_t mapnum, | |
1916 | void **hostaddrs, size_t *sizes, unsigned short *kinds) | |
1917 | { | |
1918 | const int typemask = 0xff; | |
1919 | size_t i; | |
ca4c3545 | 1920 | gomp_mutex_lock (&devicep->lock); |
f87b2900 | 1921 | if (devicep->state == GOMP_DEVICE_FINALIZED) |
1922 | { | |
1923 | gomp_mutex_unlock (&devicep->lock); | |
1924 | return; | |
1925 | } | |
1926 | ||
43895be5 | 1927 | for (i = 0; i < mapnum; i++) |
1928 | { | |
1929 | struct splay_tree_key_s cur_node; | |
1930 | unsigned char kind = kinds[i] & typemask; | |
1931 | switch (kind) | |
1932 | { | |
1933 | case GOMP_MAP_FROM: | |
1934 | case GOMP_MAP_ALWAYS_FROM: | |
1935 | case GOMP_MAP_DELETE: | |
1936 | case GOMP_MAP_RELEASE: | |
1937 | case GOMP_MAP_ZERO_LEN_ARRAY_SECTION: | |
1938 | case GOMP_MAP_DELETE_ZERO_LEN_ARRAY_SECTION: | |
1939 | cur_node.host_start = (uintptr_t) hostaddrs[i]; | |
1940 | cur_node.host_end = cur_node.host_start + sizes[i]; | |
1941 | splay_tree_key k = (kind == GOMP_MAP_DELETE_ZERO_LEN_ARRAY_SECTION | |
1942 | || kind == GOMP_MAP_ZERO_LEN_ARRAY_SECTION) | |
9561765e | 1943 | ? gomp_map_0len_lookup (&devicep->mem_map, &cur_node) |
43895be5 | 1944 | : splay_tree_lookup (&devicep->mem_map, &cur_node); |
1945 | if (!k) | |
1946 | continue; | |
1947 | ||
1948 | if (k->refcount > 0 && k->refcount != REFCOUNT_INFINITY) | |
1949 | k->refcount--; | |
1950 | if ((kind == GOMP_MAP_DELETE | |
1951 | || kind == GOMP_MAP_DELETE_ZERO_LEN_ARRAY_SECTION) | |
1952 | && k->refcount != REFCOUNT_INFINITY) | |
1953 | k->refcount = 0; | |
1954 | ||
1955 | if ((kind == GOMP_MAP_FROM && k->refcount == 0) | |
1956 | || kind == GOMP_MAP_ALWAYS_FROM) | |
9b50ad1d | 1957 | gomp_copy_dev2host (devicep, (void *) cur_node.host_start, |
1958 | (void *) (k->tgt->tgt_start + k->tgt_offset | |
1959 | + cur_node.host_start | |
1960 | - k->host_start), | |
1961 | cur_node.host_end - cur_node.host_start); | |
43895be5 | 1962 | if (k->refcount == 0) |
1963 | { | |
1964 | splay_tree_remove (&devicep->mem_map, k); | |
c0998828 | 1965 | if (k->link_key) |
1966 | splay_tree_insert (&devicep->mem_map, | |
1967 | (splay_tree_node) k->link_key); | |
43895be5 | 1968 | if (k->tgt->refcount > 1) |
1969 | k->tgt->refcount--; | |
1970 | else | |
1971 | gomp_unmap_tgt (k->tgt); | |
1972 | } | |
1973 | ||
1974 | break; | |
1975 | default: | |
1976 | gomp_mutex_unlock (&devicep->lock); | |
1977 | gomp_fatal ("GOMP_target_enter_exit_data unhandled kind 0x%.2x", | |
1978 | kind); | |
1979 | } | |
1980 | } | |
1981 | ||
ca4c3545 | 1982 | gomp_mutex_unlock (&devicep->lock); |
43895be5 | 1983 | } |
ca4c3545 | 1984 | |
43895be5 | 1985 | void |
1986 | GOMP_target_enter_exit_data (int device, size_t mapnum, void **hostaddrs, | |
1987 | size_t *sizes, unsigned short *kinds, | |
1988 | unsigned int flags, void **depend) | |
1989 | { | |
1990 | struct gomp_device_descr *devicep = resolve_device (device); | |
1991 | ||
1992 | /* If there are depend clauses, but nowait is not present, | |
1993 | block the parent task until the dependencies are resolved | |
1994 | and then just continue with the rest of the function as if it | |
1995 | is a merged task. Until we are able to schedule task during | |
1996 | variable mapping or unmapping, ignore nowait if depend clauses | |
1997 | are not present. */ | |
1998 | if (depend != NULL) | |
1999 | { | |
2000 | struct gomp_thread *thr = gomp_thread (); | |
2001 | if (thr->task && thr->task->depend_hash) | |
2002 | { | |
2003 | if ((flags & GOMP_TARGET_FLAG_NOWAIT) | |
2004 | && thr->ts.team | |
2005 | && !thr->task->final_task) | |
2006 | { | |
a9833286 | 2007 | if (gomp_create_target_task (devicep, (void (*) (void *)) NULL, |
2008 | mapnum, hostaddrs, sizes, kinds, | |
56686608 | 2009 | flags, depend, NULL, |
a9833286 | 2010 | GOMP_TARGET_TASK_DATA)) |
2011 | return; | |
2012 | } | |
2013 | else | |
2014 | { | |
2015 | struct gomp_team *team = thr->ts.team; | |
2016 | /* If parallel or taskgroup has been cancelled, don't start new | |
2017 | tasks. */ | |
7e5a76c8 | 2018 | if (__builtin_expect (gomp_cancel_var, 0) && team) |
2019 | { | |
2020 | if (gomp_team_barrier_cancelled (&team->barrier)) | |
2021 | return; | |
2022 | if (thr->task->taskgroup) | |
2023 | { | |
2024 | if (thr->task->taskgroup->cancelled) | |
2025 | return; | |
2026 | if (thr->task->taskgroup->workshare | |
2027 | && thr->task->taskgroup->prev | |
2028 | && thr->task->taskgroup->prev->cancelled) | |
2029 | return; | |
2030 | } | |
2031 | } | |
a9833286 | 2032 | |
2033 | gomp_task_maybe_wait_for_dependencies (depend); | |
43895be5 | 2034 | } |
43895be5 | 2035 | } |
2036 | } | |
2037 | ||
2038 | if (devicep == NULL | |
56686608 | 2039 | || !(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
2040 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
43895be5 | 2041 | return; |
2042 | ||
2043 | struct gomp_thread *thr = gomp_thread (); | |
2044 | struct gomp_team *team = thr->ts.team; | |
2045 | /* If parallel or taskgroup has been cancelled, don't start new tasks. */ | |
7e5a76c8 | 2046 | if (__builtin_expect (gomp_cancel_var, 0) && team) |
2047 | { | |
2048 | if (gomp_team_barrier_cancelled (&team->barrier)) | |
2049 | return; | |
2050 | if (thr->task->taskgroup) | |
2051 | { | |
2052 | if (thr->task->taskgroup->cancelled) | |
2053 | return; | |
2054 | if (thr->task->taskgroup->workshare | |
2055 | && thr->task->taskgroup->prev | |
2056 | && thr->task->taskgroup->prev->cancelled) | |
2057 | return; | |
2058 | } | |
2059 | } | |
43895be5 | 2060 | |
2061 | size_t i; | |
2062 | if ((flags & GOMP_TARGET_FLAG_EXIT_DATA) == 0) | |
2063 | for (i = 0; i < mapnum; i++) | |
2064 | if ((kinds[i] & 0xff) == GOMP_MAP_STRUCT) | |
2065 | { | |
2066 | gomp_map_vars (devicep, sizes[i] + 1, &hostaddrs[i], NULL, &sizes[i], | |
2067 | &kinds[i], true, GOMP_MAP_VARS_ENTER_DATA); | |
2068 | i += sizes[i]; | |
2069 | } | |
2070 | else | |
2071 | gomp_map_vars (devicep, 1, &hostaddrs[i], NULL, &sizes[i], &kinds[i], | |
2072 | true, GOMP_MAP_VARS_ENTER_DATA); | |
2073 | else | |
2074 | gomp_exit_data (devicep, mapnum, hostaddrs, sizes, kinds); | |
2075 | } | |
2076 | ||
a9833286 | 2077 | bool |
43895be5 | 2078 | gomp_target_task_fn (void *data) |
2079 | { | |
2080 | struct gomp_target_task *ttask = (struct gomp_target_task *) data; | |
a9833286 | 2081 | struct gomp_device_descr *devicep = ttask->devicep; |
2082 | ||
43895be5 | 2083 | if (ttask->fn != NULL) |
2084 | { | |
f87b2900 | 2085 | void *fn_addr; |
a9833286 | 2086 | if (devicep == NULL |
f87b2900 | 2087 | || !(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
56686608 | 2088 | || !(fn_addr = gomp_get_target_fn_addr (devicep, ttask->fn)) |
2089 | || (devicep->can_run_func && !devicep->can_run_func (fn_addr))) | |
a9833286 | 2090 | { |
2091 | ttask->state = GOMP_TARGET_TASK_FALLBACK; | |
84217e9d | 2092 | gomp_target_fallback (ttask->fn, ttask->hostaddrs); |
a9833286 | 2093 | return false; |
2094 | } | |
2095 | ||
2096 | if (ttask->state == GOMP_TARGET_TASK_FINISHED) | |
2097 | { | |
56686608 | 2098 | if (ttask->tgt) |
2099 | gomp_unmap_vars (ttask->tgt, true); | |
a9833286 | 2100 | return false; |
2101 | } | |
2102 | ||
56686608 | 2103 | void *actual_arguments; |
2104 | if (devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
2105 | { | |
2106 | ttask->tgt = NULL; | |
56686608 | 2107 | actual_arguments = ttask->hostaddrs; |
2108 | } | |
2109 | else | |
2110 | { | |
2111 | ttask->tgt = gomp_map_vars (devicep, ttask->mapnum, ttask->hostaddrs, | |
2112 | NULL, ttask->sizes, ttask->kinds, true, | |
2113 | GOMP_MAP_VARS_TARGET); | |
2114 | actual_arguments = (void *) ttask->tgt->tgt_start; | |
2115 | } | |
a9833286 | 2116 | ttask->state = GOMP_TARGET_TASK_READY_TO_RUN; |
2117 | ||
56686608 | 2118 | devicep->async_run_func (devicep->target_id, fn_addr, actual_arguments, |
2119 | ttask->args, (void *) ttask); | |
a9833286 | 2120 | return true; |
43895be5 | 2121 | } |
a9833286 | 2122 | else if (devicep == NULL |
56686608 | 2123 | || !(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
2124 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
a9833286 | 2125 | return false; |
43895be5 | 2126 | |
2127 | size_t i; | |
2128 | if (ttask->flags & GOMP_TARGET_FLAG_UPDATE) | |
a9833286 | 2129 | gomp_update (devicep, ttask->mapnum, ttask->hostaddrs, ttask->sizes, |
43895be5 | 2130 | ttask->kinds, true); |
2131 | else if ((ttask->flags & GOMP_TARGET_FLAG_EXIT_DATA) == 0) | |
2132 | for (i = 0; i < ttask->mapnum; i++) | |
2133 | if ((ttask->kinds[i] & 0xff) == GOMP_MAP_STRUCT) | |
2134 | { | |
a9833286 | 2135 | gomp_map_vars (devicep, ttask->sizes[i] + 1, &ttask->hostaddrs[i], |
2136 | NULL, &ttask->sizes[i], &ttask->kinds[i], true, | |
2137 | GOMP_MAP_VARS_ENTER_DATA); | |
43895be5 | 2138 | i += ttask->sizes[i]; |
2139 | } | |
2140 | else | |
a9833286 | 2141 | gomp_map_vars (devicep, 1, &ttask->hostaddrs[i], NULL, &ttask->sizes[i], |
2142 | &ttask->kinds[i], true, GOMP_MAP_VARS_ENTER_DATA); | |
43895be5 | 2143 | else |
a9833286 | 2144 | gomp_exit_data (devicep, ttask->mapnum, ttask->hostaddrs, ttask->sizes, |
2145 | ttask->kinds); | |
2146 | return false; | |
bc7bff74 | 2147 | } |
2148 | ||
2149 | void | |
2150 | GOMP_teams (unsigned int num_teams, unsigned int thread_limit) | |
2151 | { | |
2152 | if (thread_limit) | |
2153 | { | |
2154 | struct gomp_task_icv *icv = gomp_icv (true); | |
2155 | icv->thread_limit_var | |
2156 | = thread_limit > INT_MAX ? UINT_MAX : thread_limit; | |
2157 | } | |
2158 | (void) num_teams; | |
2159 | } | |
995b27b9 | 2160 | |
43895be5 | 2161 | void * |
2162 | omp_target_alloc (size_t size, int device_num) | |
2163 | { | |
2164 | if (device_num == GOMP_DEVICE_HOST_FALLBACK) | |
2165 | return malloc (size); | |
2166 | ||
2167 | if (device_num < 0) | |
2168 | return NULL; | |
2169 | ||
2170 | struct gomp_device_descr *devicep = resolve_device (device_num); | |
2171 | if (devicep == NULL) | |
2172 | return NULL; | |
2173 | ||
56686608 | 2174 | if (!(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
2175 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
43895be5 | 2176 | return malloc (size); |
2177 | ||
2178 | gomp_mutex_lock (&devicep->lock); | |
2179 | void *ret = devicep->alloc_func (devicep->target_id, size); | |
2180 | gomp_mutex_unlock (&devicep->lock); | |
2181 | return ret; | |
2182 | } | |
2183 | ||
2184 | void | |
2185 | omp_target_free (void *device_ptr, int device_num) | |
2186 | { | |
2187 | if (device_ptr == NULL) | |
2188 | return; | |
2189 | ||
2190 | if (device_num == GOMP_DEVICE_HOST_FALLBACK) | |
2191 | { | |
2192 | free (device_ptr); | |
2193 | return; | |
2194 | } | |
2195 | ||
2196 | if (device_num < 0) | |
2197 | return; | |
2198 | ||
2199 | struct gomp_device_descr *devicep = resolve_device (device_num); | |
2200 | if (devicep == NULL) | |
2201 | return; | |
2202 | ||
56686608 | 2203 | if (!(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
2204 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
43895be5 | 2205 | { |
2206 | free (device_ptr); | |
2207 | return; | |
2208 | } | |
2209 | ||
2210 | gomp_mutex_lock (&devicep->lock); | |
9b50ad1d | 2211 | gomp_free_device_memory (devicep, device_ptr); |
43895be5 | 2212 | gomp_mutex_unlock (&devicep->lock); |
2213 | } | |
2214 | ||
2215 | int | |
7e5a76c8 | 2216 | omp_target_is_present (const void *ptr, int device_num) |
43895be5 | 2217 | { |
2218 | if (ptr == NULL) | |
2219 | return 1; | |
2220 | ||
2221 | if (device_num == GOMP_DEVICE_HOST_FALLBACK) | |
2222 | return 1; | |
2223 | ||
2224 | if (device_num < 0) | |
2225 | return 0; | |
2226 | ||
2227 | struct gomp_device_descr *devicep = resolve_device (device_num); | |
2228 | if (devicep == NULL) | |
2229 | return 0; | |
2230 | ||
56686608 | 2231 | if (!(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
2232 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
43895be5 | 2233 | return 1; |
2234 | ||
2235 | gomp_mutex_lock (&devicep->lock); | |
2236 | struct splay_tree_s *mem_map = &devicep->mem_map; | |
2237 | struct splay_tree_key_s cur_node; | |
2238 | ||
2239 | cur_node.host_start = (uintptr_t) ptr; | |
2240 | cur_node.host_end = cur_node.host_start; | |
9561765e | 2241 | splay_tree_key n = gomp_map_0len_lookup (mem_map, &cur_node); |
43895be5 | 2242 | int ret = n != NULL; |
2243 | gomp_mutex_unlock (&devicep->lock); | |
2244 | return ret; | |
2245 | } | |
2246 | ||
2247 | int | |
7e5a76c8 | 2248 | omp_target_memcpy (void *dst, const void *src, size_t length, |
2249 | size_t dst_offset, size_t src_offset, int dst_device_num, | |
2250 | int src_device_num) | |
43895be5 | 2251 | { |
2252 | struct gomp_device_descr *dst_devicep = NULL, *src_devicep = NULL; | |
9b50ad1d | 2253 | bool ret; |
43895be5 | 2254 | |
2255 | if (dst_device_num != GOMP_DEVICE_HOST_FALLBACK) | |
2256 | { | |
2257 | if (dst_device_num < 0) | |
2258 | return EINVAL; | |
2259 | ||
2260 | dst_devicep = resolve_device (dst_device_num); | |
2261 | if (dst_devicep == NULL) | |
2262 | return EINVAL; | |
2263 | ||
56686608 | 2264 | if (!(dst_devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
2265 | || dst_devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
43895be5 | 2266 | dst_devicep = NULL; |
2267 | } | |
2268 | if (src_device_num != GOMP_DEVICE_HOST_FALLBACK) | |
2269 | { | |
2270 | if (src_device_num < 0) | |
2271 | return EINVAL; | |
2272 | ||
2273 | src_devicep = resolve_device (src_device_num); | |
2274 | if (src_devicep == NULL) | |
2275 | return EINVAL; | |
2276 | ||
56686608 | 2277 | if (!(src_devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
2278 | || src_devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
43895be5 | 2279 | src_devicep = NULL; |
2280 | } | |
2281 | if (src_devicep == NULL && dst_devicep == NULL) | |
2282 | { | |
2283 | memcpy ((char *) dst + dst_offset, (char *) src + src_offset, length); | |
2284 | return 0; | |
2285 | } | |
2286 | if (src_devicep == NULL) | |
2287 | { | |
2288 | gomp_mutex_lock (&dst_devicep->lock); | |
9b50ad1d | 2289 | ret = dst_devicep->host2dev_func (dst_devicep->target_id, |
2290 | (char *) dst + dst_offset, | |
2291 | (char *) src + src_offset, length); | |
43895be5 | 2292 | gomp_mutex_unlock (&dst_devicep->lock); |
9b50ad1d | 2293 | return (ret ? 0 : EINVAL); |
43895be5 | 2294 | } |
2295 | if (dst_devicep == NULL) | |
2296 | { | |
2297 | gomp_mutex_lock (&src_devicep->lock); | |
9b50ad1d | 2298 | ret = src_devicep->dev2host_func (src_devicep->target_id, |
2299 | (char *) dst + dst_offset, | |
2300 | (char *) src + src_offset, length); | |
43895be5 | 2301 | gomp_mutex_unlock (&src_devicep->lock); |
9b50ad1d | 2302 | return (ret ? 0 : EINVAL); |
43895be5 | 2303 | } |
2304 | if (src_devicep == dst_devicep) | |
2305 | { | |
2306 | gomp_mutex_lock (&src_devicep->lock); | |
9b50ad1d | 2307 | ret = src_devicep->dev2dev_func (src_devicep->target_id, |
2308 | (char *) dst + dst_offset, | |
2309 | (char *) src + src_offset, length); | |
43895be5 | 2310 | gomp_mutex_unlock (&src_devicep->lock); |
9b50ad1d | 2311 | return (ret ? 0 : EINVAL); |
43895be5 | 2312 | } |
2313 | return EINVAL; | |
2314 | } | |
2315 | ||
2316 | static int | |
7e5a76c8 | 2317 | omp_target_memcpy_rect_worker (void *dst, const void *src, size_t element_size, |
43895be5 | 2318 | int num_dims, const size_t *volume, |
2319 | const size_t *dst_offsets, | |
2320 | const size_t *src_offsets, | |
2321 | const size_t *dst_dimensions, | |
2322 | const size_t *src_dimensions, | |
2323 | struct gomp_device_descr *dst_devicep, | |
2324 | struct gomp_device_descr *src_devicep) | |
2325 | { | |
2326 | size_t dst_slice = element_size; | |
2327 | size_t src_slice = element_size; | |
2328 | size_t j, dst_off, src_off, length; | |
2329 | int i, ret; | |
2330 | ||
2331 | if (num_dims == 1) | |
2332 | { | |
2333 | if (__builtin_mul_overflow (element_size, volume[0], &length) | |
2334 | || __builtin_mul_overflow (element_size, dst_offsets[0], &dst_off) | |
2335 | || __builtin_mul_overflow (element_size, src_offsets[0], &src_off)) | |
2336 | return EINVAL; | |
2337 | if (dst_devicep == NULL && src_devicep == NULL) | |
9b50ad1d | 2338 | { |
7e5a76c8 | 2339 | memcpy ((char *) dst + dst_off, (const char *) src + src_off, |
2340 | length); | |
9b50ad1d | 2341 | ret = 1; |
2342 | } | |
43895be5 | 2343 | else if (src_devicep == NULL) |
9b50ad1d | 2344 | ret = dst_devicep->host2dev_func (dst_devicep->target_id, |
2345 | (char *) dst + dst_off, | |
7e5a76c8 | 2346 | (const char *) src + src_off, |
2347 | length); | |
43895be5 | 2348 | else if (dst_devicep == NULL) |
9b50ad1d | 2349 | ret = src_devicep->dev2host_func (src_devicep->target_id, |
2350 | (char *) dst + dst_off, | |
7e5a76c8 | 2351 | (const char *) src + src_off, |
2352 | length); | |
43895be5 | 2353 | else if (src_devicep == dst_devicep) |
9b50ad1d | 2354 | ret = src_devicep->dev2dev_func (src_devicep->target_id, |
2355 | (char *) dst + dst_off, | |
7e5a76c8 | 2356 | (const char *) src + src_off, |
2357 | length); | |
43895be5 | 2358 | else |
9b50ad1d | 2359 | ret = 0; |
2360 | return ret ? 0 : EINVAL; | |
43895be5 | 2361 | } |
2362 | ||
2363 | /* FIXME: it would be nice to have some plugin function to handle | |
2364 | num_dims == 2 and num_dims == 3 more efficiently. Larger ones can | |
2365 | be handled in the generic recursion below, and for host-host it | |
2366 | should be used even for any num_dims >= 2. */ | |
2367 | ||
2368 | for (i = 1; i < num_dims; i++) | |
2369 | if (__builtin_mul_overflow (dst_slice, dst_dimensions[i], &dst_slice) | |
2370 | || __builtin_mul_overflow (src_slice, src_dimensions[i], &src_slice)) | |
2371 | return EINVAL; | |
2372 | if (__builtin_mul_overflow (dst_slice, dst_offsets[0], &dst_off) | |
2373 | || __builtin_mul_overflow (src_slice, src_offsets[0], &src_off)) | |
2374 | return EINVAL; | |
2375 | for (j = 0; j < volume[0]; j++) | |
2376 | { | |
2377 | ret = omp_target_memcpy_rect_worker ((char *) dst + dst_off, | |
7e5a76c8 | 2378 | (const char *) src + src_off, |
43895be5 | 2379 | element_size, num_dims - 1, |
2380 | volume + 1, dst_offsets + 1, | |
2381 | src_offsets + 1, dst_dimensions + 1, | |
2382 | src_dimensions + 1, dst_devicep, | |
2383 | src_devicep); | |
2384 | if (ret) | |
2385 | return ret; | |
2386 | dst_off += dst_slice; | |
2387 | src_off += src_slice; | |
2388 | } | |
2389 | return 0; | |
2390 | } | |
2391 | ||
2392 | int | |
7e5a76c8 | 2393 | omp_target_memcpy_rect (void *dst, const void *src, size_t element_size, |
43895be5 | 2394 | int num_dims, const size_t *volume, |
2395 | const size_t *dst_offsets, | |
2396 | const size_t *src_offsets, | |
2397 | const size_t *dst_dimensions, | |
2398 | const size_t *src_dimensions, | |
2399 | int dst_device_num, int src_device_num) | |
2400 | { | |
2401 | struct gomp_device_descr *dst_devicep = NULL, *src_devicep = NULL; | |
2402 | ||
2403 | if (!dst && !src) | |
2404 | return INT_MAX; | |
2405 | ||
2406 | if (dst_device_num != GOMP_DEVICE_HOST_FALLBACK) | |
2407 | { | |
2408 | if (dst_device_num < 0) | |
2409 | return EINVAL; | |
2410 | ||
2411 | dst_devicep = resolve_device (dst_device_num); | |
2412 | if (dst_devicep == NULL) | |
2413 | return EINVAL; | |
2414 | ||
56686608 | 2415 | if (!(dst_devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
2416 | || dst_devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
43895be5 | 2417 | dst_devicep = NULL; |
2418 | } | |
2419 | if (src_device_num != GOMP_DEVICE_HOST_FALLBACK) | |
2420 | { | |
2421 | if (src_device_num < 0) | |
2422 | return EINVAL; | |
2423 | ||
2424 | src_devicep = resolve_device (src_device_num); | |
2425 | if (src_devicep == NULL) | |
2426 | return EINVAL; | |
2427 | ||
56686608 | 2428 | if (!(src_devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
2429 | || src_devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
43895be5 | 2430 | src_devicep = NULL; |
2431 | } | |
2432 | ||
2433 | if (src_devicep != NULL && dst_devicep != NULL && src_devicep != dst_devicep) | |
2434 | return EINVAL; | |
2435 | ||
2436 | if (src_devicep) | |
2437 | gomp_mutex_lock (&src_devicep->lock); | |
2438 | else if (dst_devicep) | |
2439 | gomp_mutex_lock (&dst_devicep->lock); | |
2440 | int ret = omp_target_memcpy_rect_worker (dst, src, element_size, num_dims, | |
2441 | volume, dst_offsets, src_offsets, | |
2442 | dst_dimensions, src_dimensions, | |
2443 | dst_devicep, src_devicep); | |
2444 | if (src_devicep) | |
2445 | gomp_mutex_unlock (&src_devicep->lock); | |
2446 | else if (dst_devicep) | |
2447 | gomp_mutex_unlock (&dst_devicep->lock); | |
2448 | return ret; | |
2449 | } | |
2450 | ||
2451 | int | |
7e5a76c8 | 2452 | omp_target_associate_ptr (const void *host_ptr, const void *device_ptr, |
2453 | size_t size, size_t device_offset, int device_num) | |
43895be5 | 2454 | { |
2455 | if (device_num == GOMP_DEVICE_HOST_FALLBACK) | |
2456 | return EINVAL; | |
2457 | ||
2458 | if (device_num < 0) | |
2459 | return EINVAL; | |
2460 | ||
2461 | struct gomp_device_descr *devicep = resolve_device (device_num); | |
2462 | if (devicep == NULL) | |
2463 | return EINVAL; | |
2464 | ||
56686608 | 2465 | if (!(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
2466 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
43895be5 | 2467 | return EINVAL; |
2468 | ||
2469 | gomp_mutex_lock (&devicep->lock); | |
2470 | ||
2471 | struct splay_tree_s *mem_map = &devicep->mem_map; | |
2472 | struct splay_tree_key_s cur_node; | |
2473 | int ret = EINVAL; | |
2474 | ||
2475 | cur_node.host_start = (uintptr_t) host_ptr; | |
2476 | cur_node.host_end = cur_node.host_start + size; | |
2477 | splay_tree_key n = gomp_map_lookup (mem_map, &cur_node); | |
2478 | if (n) | |
2479 | { | |
2480 | if (n->tgt->tgt_start + n->tgt_offset | |
2481 | == (uintptr_t) device_ptr + device_offset | |
2482 | && n->host_start <= cur_node.host_start | |
2483 | && n->host_end >= cur_node.host_end) | |
2484 | ret = 0; | |
2485 | } | |
2486 | else | |
2487 | { | |
2488 | struct target_mem_desc *tgt = gomp_malloc (sizeof (*tgt)); | |
2489 | tgt->array = gomp_malloc (sizeof (*tgt->array)); | |
2490 | tgt->refcount = 1; | |
2491 | tgt->tgt_start = 0; | |
2492 | tgt->tgt_end = 0; | |
2493 | tgt->to_free = NULL; | |
2494 | tgt->prev = NULL; | |
2495 | tgt->list_count = 0; | |
2496 | tgt->device_descr = devicep; | |
2497 | splay_tree_node array = tgt->array; | |
2498 | splay_tree_key k = &array->key; | |
2499 | k->host_start = cur_node.host_start; | |
2500 | k->host_end = cur_node.host_end; | |
2501 | k->tgt = tgt; | |
2502 | k->tgt_offset = (uintptr_t) device_ptr + device_offset; | |
2503 | k->refcount = REFCOUNT_INFINITY; | |
43895be5 | 2504 | array->left = NULL; |
2505 | array->right = NULL; | |
2506 | splay_tree_insert (&devicep->mem_map, array); | |
2507 | ret = 0; | |
2508 | } | |
2509 | gomp_mutex_unlock (&devicep->lock); | |
2510 | return ret; | |
2511 | } | |
2512 | ||
2513 | int | |
7e5a76c8 | 2514 | omp_target_disassociate_ptr (const void *ptr, int device_num) |
43895be5 | 2515 | { |
2516 | if (device_num == GOMP_DEVICE_HOST_FALLBACK) | |
2517 | return EINVAL; | |
2518 | ||
2519 | if (device_num < 0) | |
2520 | return EINVAL; | |
2521 | ||
2522 | struct gomp_device_descr *devicep = resolve_device (device_num); | |
2523 | if (devicep == NULL) | |
2524 | return EINVAL; | |
2525 | ||
2526 | if (!(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400)) | |
2527 | return EINVAL; | |
2528 | ||
2529 | gomp_mutex_lock (&devicep->lock); | |
2530 | ||
2531 | struct splay_tree_s *mem_map = &devicep->mem_map; | |
2532 | struct splay_tree_key_s cur_node; | |
2533 | int ret = EINVAL; | |
2534 | ||
2535 | cur_node.host_start = (uintptr_t) ptr; | |
2536 | cur_node.host_end = cur_node.host_start; | |
2537 | splay_tree_key n = gomp_map_lookup (mem_map, &cur_node); | |
2538 | if (n | |
2539 | && n->host_start == cur_node.host_start | |
2540 | && n->refcount == REFCOUNT_INFINITY | |
2541 | && n->tgt->tgt_start == 0 | |
2542 | && n->tgt->to_free == NULL | |
2543 | && n->tgt->refcount == 1 | |
2544 | && n->tgt->list_count == 0) | |
2545 | { | |
2546 | splay_tree_remove (&devicep->mem_map, n); | |
2547 | gomp_unmap_tgt (n->tgt); | |
2548 | ret = 0; | |
2549 | } | |
2550 | ||
2551 | gomp_mutex_unlock (&devicep->lock); | |
2552 | return ret; | |
2553 | } | |
2554 | ||
7e5a76c8 | 2555 | int |
2556 | omp_pause_resource (omp_pause_resource_t kind, int device_num) | |
2557 | { | |
2558 | (void) kind; | |
2559 | if (device_num == GOMP_DEVICE_HOST_FALLBACK) | |
2560 | return gomp_pause_host (); | |
2561 | if (device_num < 0 || device_num >= gomp_get_num_devices ()) | |
2562 | return -1; | |
2563 | /* Do nothing for target devices for now. */ | |
2564 | return 0; | |
2565 | } | |
2566 | ||
2567 | int | |
2568 | omp_pause_resource_all (omp_pause_resource_t kind) | |
2569 | { | |
2570 | (void) kind; | |
2571 | if (gomp_pause_host ()) | |
2572 | return -1; | |
2573 | /* Do nothing for target devices for now. */ | |
2574 | return 0; | |
2575 | } | |
2576 | ||
2577 | ialias (omp_pause_resource) | |
2578 | ialias (omp_pause_resource_all) | |
2579 | ||
995b27b9 | 2580 | #ifdef PLUGIN_SUPPORT |
2581 | ||
2582 | /* This function tries to load a plugin for DEVICE. Name of plugin is passed | |
2583 | in PLUGIN_NAME. | |
2584 | The handles of the found functions are stored in the corresponding fields | |
2585 | of DEVICE. The function returns TRUE on success and FALSE otherwise. */ | |
2586 | ||
2587 | static bool | |
2588 | gomp_load_plugin_for_device (struct gomp_device_descr *device, | |
2589 | const char *plugin_name) | |
2590 | { | |
c6aa02c6 | 2591 | const char *err = NULL, *last_missing = NULL; |
ca4c3545 | 2592 | |
995b27b9 | 2593 | void *plugin_handle = dlopen (plugin_name, RTLD_LAZY); |
2594 | if (!plugin_handle) | |
d3d8e632 | 2595 | goto dl_fail; |
995b27b9 | 2596 | |
2597 | /* Check if all required functions are available in the plugin and store | |
d3d8e632 | 2598 | their handlers. None of the symbols can legitimately be NULL, |
2599 | so we don't need to check dlerror all the time. */ | |
ca4c3545 | 2600 | #define DLSYM(f) \ |
d3d8e632 | 2601 | if (!(device->f##_func = dlsym (plugin_handle, "GOMP_OFFLOAD_" #f))) \ |
2602 | goto dl_fail | |
2603 | /* Similar, but missing functions are not an error. Return false if | |
2604 | failed, true otherwise. */ | |
2605 | #define DLSYM_OPT(f, n) \ | |
2606 | ((device->f##_func = dlsym (plugin_handle, "GOMP_OFFLOAD_" #n)) \ | |
2607 | || (last_missing = #n, 0)) | |
2608 | ||
2609 | DLSYM (version); | |
2610 | if (device->version_func () != GOMP_VERSION) | |
2611 | { | |
2612 | err = "plugin version mismatch"; | |
2613 | goto fail; | |
2614 | } | |
ca4c3545 | 2615 | |
2616 | DLSYM (get_name); | |
2617 | DLSYM (get_caps); | |
995b27b9 | 2618 | DLSYM (get_type); |
2619 | DLSYM (get_num_devices); | |
995b27b9 | 2620 | DLSYM (init_device); |
ca4c3545 | 2621 | DLSYM (fini_device); |
0d8c703d | 2622 | DLSYM (load_image); |
2623 | DLSYM (unload_image); | |
995b27b9 | 2624 | DLSYM (alloc); |
2625 | DLSYM (free); | |
2626 | DLSYM (dev2host); | |
2627 | DLSYM (host2dev); | |
ca4c3545 | 2628 | device->capabilities = device->get_caps_func (); |
2629 | if (device->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) | |
43895be5 | 2630 | { |
2631 | DLSYM (run); | |
a9833286 | 2632 | DLSYM (async_run); |
56686608 | 2633 | DLSYM_OPT (can_run, can_run); |
43895be5 | 2634 | DLSYM (dev2dev); |
2635 | } | |
ca4c3545 | 2636 | if (device->capabilities & GOMP_OFFLOAD_CAP_OPENACC_200) |
2637 | { | |
65caa53b | 2638 | if (!DLSYM_OPT (openacc.exec, openacc_exec) |
d3d8e632 | 2639 | || !DLSYM_OPT (openacc.register_async_cleanup, |
2640 | openacc_register_async_cleanup) | |
2641 | || !DLSYM_OPT (openacc.async_test, openacc_async_test) | |
2642 | || !DLSYM_OPT (openacc.async_test_all, openacc_async_test_all) | |
2643 | || !DLSYM_OPT (openacc.async_wait, openacc_async_wait) | |
2644 | || !DLSYM_OPT (openacc.async_wait_async, openacc_async_wait_async) | |
2645 | || !DLSYM_OPT (openacc.async_wait_all, openacc_async_wait_all) | |
2646 | || !DLSYM_OPT (openacc.async_wait_all_async, | |
2647 | openacc_async_wait_all_async) | |
2648 | || !DLSYM_OPT (openacc.async_set_async, openacc_async_set_async) | |
2649 | || !DLSYM_OPT (openacc.create_thread_data, | |
2650 | openacc_create_thread_data) | |
2651 | || !DLSYM_OPT (openacc.destroy_thread_data, | |
2652 | openacc_destroy_thread_data)) | |
ca4c3545 | 2653 | { |
d3d8e632 | 2654 | /* Require all the OpenACC handlers if we have |
2655 | GOMP_OFFLOAD_CAP_OPENACC_200. */ | |
ca4c3545 | 2656 | err = "plugin missing OpenACC handler function"; |
d3d8e632 | 2657 | goto fail; |
ca4c3545 | 2658 | } |
d3d8e632 | 2659 | |
2660 | unsigned cuda = 0; | |
2661 | cuda += DLSYM_OPT (openacc.cuda.get_current_device, | |
65caa53b | 2662 | openacc_cuda_get_current_device); |
d3d8e632 | 2663 | cuda += DLSYM_OPT (openacc.cuda.get_current_context, |
65caa53b | 2664 | openacc_cuda_get_current_context); |
2665 | cuda += DLSYM_OPT (openacc.cuda.get_stream, openacc_cuda_get_stream); | |
2666 | cuda += DLSYM_OPT (openacc.cuda.set_stream, openacc_cuda_set_stream); | |
d3d8e632 | 2667 | if (cuda && cuda != 4) |
ca4c3545 | 2668 | { |
d3d8e632 | 2669 | /* Make sure all the CUDA functions are there if any of them are. */ |
ca4c3545 | 2670 | err = "plugin missing OpenACC CUDA handler function"; |
d3d8e632 | 2671 | goto fail; |
ca4c3545 | 2672 | } |
2673 | } | |
995b27b9 | 2674 | #undef DLSYM |
ca4c3545 | 2675 | #undef DLSYM_OPT |
995b27b9 | 2676 | |
d3d8e632 | 2677 | return 1; |
2678 | ||
2679 | dl_fail: | |
2680 | err = dlerror (); | |
2681 | fail: | |
2682 | gomp_error ("while loading %s: %s", plugin_name, err); | |
2683 | if (last_missing) | |
2684 | gomp_error ("missing function was %s", last_missing); | |
2685 | if (plugin_handle) | |
2686 | dlclose (plugin_handle); | |
2687 | ||
2688 | return 0; | |
995b27b9 | 2689 | } |
2690 | ||
f87b2900 | 2691 | /* This function finalizes all initialized devices. */ |
2692 | ||
2693 | static void | |
2694 | gomp_target_fini (void) | |
2695 | { | |
2696 | int i; | |
2697 | for (i = 0; i < num_devices; i++) | |
2698 | { | |
9b50ad1d | 2699 | bool ret = true; |
f87b2900 | 2700 | struct gomp_device_descr *devicep = &devices[i]; |
2701 | gomp_mutex_lock (&devicep->lock); | |
2702 | if (devicep->state == GOMP_DEVICE_INITIALIZED) | |
2703 | { | |
9b50ad1d | 2704 | ret = devicep->fini_device_func (devicep->target_id); |
f87b2900 | 2705 | devicep->state = GOMP_DEVICE_FINALIZED; |
2706 | } | |
2707 | gomp_mutex_unlock (&devicep->lock); | |
9b50ad1d | 2708 | if (!ret) |
2709 | gomp_fatal ("device finalization failed"); | |
f87b2900 | 2710 | } |
2711 | } | |
2712 | ||
3a590203 | 2713 | /* This function initializes the runtime for offloading. |
2714 | It parses the list of offload plugins, and tries to load these. | |
2715 | On return, the variables NUM_DEVICES and NUM_DEVICES_OPENMP | |
ca4c3545 | 2716 | will be set, and the array DEVICES initialized, containing descriptors for |
2717 | corresponding devices, first the GOMP_OFFLOAD_CAP_OPENMP_400 ones, follows | |
2718 | by the others. */ | |
995b27b9 | 2719 | |
2720 | static void | |
2721 | gomp_target_init (void) | |
2722 | { | |
2723 | const char *prefix ="libgomp-plugin-"; | |
4fda895a | 2724 | const char *suffix = SONAME_SUFFIX (1); |
995b27b9 | 2725 | const char *cur, *next; |
2726 | char *plugin_name; | |
2727 | int i, new_num_devices; | |
2728 | ||
2729 | num_devices = 0; | |
2730 | devices = NULL; | |
2731 | ||
3a590203 | 2732 | cur = OFFLOAD_PLUGINS; |
995b27b9 | 2733 | if (*cur) |
2734 | do | |
2735 | { | |
2736 | struct gomp_device_descr current_device; | |
02b7bb30 | 2737 | size_t prefix_len, suffix_len, cur_len; |
995b27b9 | 2738 | |
2739 | next = strchr (cur, ','); | |
2740 | ||
02b7bb30 | 2741 | prefix_len = strlen (prefix); |
2742 | cur_len = next ? next - cur : strlen (cur); | |
2743 | suffix_len = strlen (suffix); | |
2744 | ||
2745 | plugin_name = (char *) malloc (prefix_len + cur_len + suffix_len + 1); | |
995b27b9 | 2746 | if (!plugin_name) |
2747 | { | |
2748 | num_devices = 0; | |
2749 | break; | |
2750 | } | |
2751 | ||
02b7bb30 | 2752 | memcpy (plugin_name, prefix, prefix_len); |
2753 | memcpy (plugin_name + prefix_len, cur, cur_len); | |
2754 | memcpy (plugin_name + prefix_len + cur_len, suffix, suffix_len + 1); | |
995b27b9 | 2755 | |
2756 | if (gomp_load_plugin_for_device (¤t_device, plugin_name)) | |
2757 | { | |
2758 | new_num_devices = current_device.get_num_devices_func (); | |
2759 | if (new_num_devices >= 1) | |
2760 | { | |
ca4c3545 | 2761 | /* Augment DEVICES and NUM_DEVICES. */ |
2762 | ||
995b27b9 | 2763 | devices = realloc (devices, (num_devices + new_num_devices) |
2764 | * sizeof (struct gomp_device_descr)); | |
2765 | if (!devices) | |
2766 | { | |
2767 | num_devices = 0; | |
2768 | free (plugin_name); | |
2769 | break; | |
2770 | } | |
2771 | ||
ca4c3545 | 2772 | current_device.name = current_device.get_name_func (); |
2773 | /* current_device.capabilities has already been set. */ | |
995b27b9 | 2774 | current_device.type = current_device.get_type_func (); |
0d8c703d | 2775 | current_device.mem_map.root = NULL; |
f87b2900 | 2776 | current_device.state = GOMP_DEVICE_UNINITIALIZED; |
ca4c3545 | 2777 | current_device.openacc.data_environ = NULL; |
995b27b9 | 2778 | for (i = 0; i < new_num_devices; i++) |
2779 | { | |
995b27b9 | 2780 | current_device.target_id = i; |
2781 | devices[num_devices] = current_device; | |
ca4c3545 | 2782 | gomp_mutex_init (&devices[num_devices].lock); |
995b27b9 | 2783 | num_devices++; |
2784 | } | |
2785 | } | |
2786 | } | |
2787 | ||
2788 | free (plugin_name); | |
2789 | cur = next + 1; | |
2790 | } | |
2791 | while (next); | |
2792 | ||
ca4c3545 | 2793 | /* In DEVICES, sort the GOMP_OFFLOAD_CAP_OPENMP_400 ones first, and set |
2794 | NUM_DEVICES_OPENMP. */ | |
2795 | struct gomp_device_descr *devices_s | |
2796 | = malloc (num_devices * sizeof (struct gomp_device_descr)); | |
2797 | if (!devices_s) | |
2798 | { | |
2799 | num_devices = 0; | |
2800 | free (devices); | |
2801 | devices = NULL; | |
2802 | } | |
2803 | num_devices_openmp = 0; | |
2804 | for (i = 0; i < num_devices; i++) | |
2805 | if (devices[i].capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) | |
2806 | devices_s[num_devices_openmp++] = devices[i]; | |
2807 | int num_devices_after_openmp = num_devices_openmp; | |
2808 | for (i = 0; i < num_devices; i++) | |
2809 | if (!(devices[i].capabilities & GOMP_OFFLOAD_CAP_OPENMP_400)) | |
2810 | devices_s[num_devices_after_openmp++] = devices[i]; | |
2811 | free (devices); | |
2812 | devices = devices_s; | |
2813 | ||
2814 | for (i = 0; i < num_devices; i++) | |
2815 | { | |
ca4c3545 | 2816 | /* The 'devices' array can be moved (by the realloc call) until we have |
2817 | found all the plugins, so registering with the OpenACC runtime (which | |
2818 | takes a copy of the pointer argument) must be delayed until now. */ | |
2819 | if (devices[i].capabilities & GOMP_OFFLOAD_CAP_OPENACC_200) | |
2820 | goacc_register (&devices[i]); | |
2821 | } | |
f87b2900 | 2822 | |
2823 | if (atexit (gomp_target_fini) != 0) | |
2824 | gomp_fatal ("atexit failed"); | |
995b27b9 | 2825 | } |
2826 | ||
2827 | #else /* PLUGIN_SUPPORT */ | |
2828 | /* If dlfcn.h is unavailable we always fallback to host execution. | |
2829 | GOMP_target* routines are just stubs for this case. */ | |
2830 | static void | |
2831 | gomp_target_init (void) | |
2832 | { | |
2833 | } | |
2834 | #endif /* PLUGIN_SUPPORT */ |