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83ffe9cd | 1 | /* Copyright (C) 2013-2023 Free Software Foundation, Inc. |
acf0174b JJ |
2 | Contributed by Jakub Jelinek <jakub@redhat.com>. |
3 | ||
f1f3453e TS |
4 | This file is part of the GNU Offloading and Multi Processing Library |
5 | (libgomp). | |
acf0174b JJ |
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 | ||
1df3f842 | 26 | /* This file contains the support of offloading. */ |
acf0174b JJ |
27 | |
28 | #include "libgomp.h" | |
41dbbb37 TS |
29 | #include "oacc-plugin.h" |
30 | #include "oacc-int.h" | |
31 | #include "gomp-constants.h" | |
acf0174b JJ |
32 | #include <limits.h> |
33 | #include <stdbool.h> | |
34 | #include <stdlib.h> | |
01c0b3b0 KT |
35 | #ifdef HAVE_INTTYPES_H |
36 | # include <inttypes.h> /* For PRIu64. */ | |
37 | #endif | |
acf0174b | 38 | #include <string.h> |
683f1184 | 39 | #include <stdio.h> /* For snprintf. */ |
41dbbb37 | 40 | #include <assert.h> |
d9a6bd32 | 41 | #include <errno.h> |
acf0174b | 42 | |
1df3f842 JJ |
43 | #ifdef PLUGIN_SUPPORT |
44 | #include <dlfcn.h> | |
b5f7a6ca | 45 | #include "plugin-suffix.h" |
1df3f842 JJ |
46 | #endif |
47 | ||
ea4b23d9 TB |
48 | /* Define another splay tree instantiation - for reverse offload. */ |
49 | #define splay_tree_prefix reverse | |
50 | #define splay_tree_c | |
51 | #include "splay-tree.h" | |
52 | ||
53 | ||
275c736e CLT |
54 | typedef uintptr_t *hash_entry_type; |
55 | static inline void * htab_alloc (size_t size) { return gomp_malloc (size); } | |
56 | static inline void htab_free (void *ptr) { free (ptr); } | |
57 | #include "hashtab.h" | |
58 | ||
6c420193 MV |
59 | ialias_redirect (GOMP_task) |
60 | ||
275c736e CLT |
61 | static inline hashval_t |
62 | htab_hash (hash_entry_type element) | |
63 | { | |
64 | return hash_pointer ((void *) element); | |
65 | } | |
66 | ||
67 | static inline bool | |
68 | htab_eq (hash_entry_type x, hash_entry_type y) | |
69 | { | |
70 | return x == y; | |
71 | } | |
72 | ||
6c7e076b JB |
73 | #define FIELD_TGT_EMPTY (~(size_t) 0) |
74 | ||
1df3f842 JJ |
75 | static void gomp_target_init (void); |
76 | ||
41dbbb37 | 77 | /* The whole initialization code for offloading plugins is only run one. */ |
1df3f842 JJ |
78 | static pthread_once_t gomp_is_initialized = PTHREAD_ONCE_INIT; |
79 | ||
a51df54e IV |
80 | /* Mutex for offload image registration. */ |
81 | static gomp_mutex_t register_lock; | |
82 | ||
1df3f842 JJ |
83 | /* This structure describes an offload image. |
84 | It contains type of the target device, pointer to host table descriptor, and | |
85 | pointer to target data. */ | |
86 | struct offload_image_descr { | |
2a21ff19 | 87 | unsigned version; |
1df3f842 | 88 | enum offload_target_type type; |
ebe4a560 | 89 | const void *host_table; |
afb2d80b | 90 | const void *target_data; |
1df3f842 JJ |
91 | }; |
92 | ||
93 | /* Array of descriptors of offload images. */ | |
94 | static struct offload_image_descr *offload_images; | |
95 | ||
96 | /* Total number of offload images. */ | |
97 | static int num_offload_images; | |
98 | ||
99 | /* Array of descriptors for all available devices. */ | |
100 | static struct gomp_device_descr *devices; | |
101 | ||
102 | /* Total number of available devices. */ | |
103 | static int num_devices; | |
104 | ||
41dbbb37 TS |
105 | /* Number of GOMP_OFFLOAD_CAP_OPENMP_400 devices. */ |
106 | static int num_devices_openmp; | |
107 | ||
683f1184 TB |
108 | /* OpenMP requires mask. */ |
109 | static int omp_requires_mask; | |
110 | ||
a51df54e IV |
111 | /* Similar to gomp_realloc, but release register_lock before gomp_fatal. */ |
112 | ||
113 | static void * | |
114 | gomp_realloc_unlock (void *old, size_t size) | |
115 | { | |
116 | void *ret = realloc (old, size); | |
117 | if (ret == NULL) | |
118 | { | |
119 | gomp_mutex_unlock (®ister_lock); | |
120 | gomp_fatal ("Out of memory allocating %lu bytes", (unsigned long) size); | |
121 | } | |
122 | return ret; | |
123 | } | |
124 | ||
41dbbb37 TS |
125 | attribute_hidden void |
126 | gomp_init_targets_once (void) | |
1df3f842 | 127 | { |
41dbbb37 TS |
128 | (void) pthread_once (&gomp_is_initialized, gomp_target_init); |
129 | } | |
1df3f842 | 130 | |
acf0174b JJ |
131 | attribute_hidden int |
132 | gomp_get_num_devices (void) | |
133 | { | |
41dbbb37 TS |
134 | gomp_init_targets_once (); |
135 | return num_devices_openmp; | |
1df3f842 JJ |
136 | } |
137 | ||
138 | static struct gomp_device_descr * | |
1158fe43 | 139 | resolve_device (int device_id, bool remapped) |
1df3f842 | 140 | { |
1158fe43 | 141 | if (remapped && device_id == GOMP_DEVICE_ICV) |
1df3f842 JJ |
142 | { |
143 | struct gomp_task_icv *icv = gomp_icv (false); | |
144 | device_id = icv->default_device_var; | |
1158fe43 | 145 | remapped = false; |
1df3f842 JJ |
146 | } |
147 | ||
1158fe43 JJ |
148 | if (device_id < 0) |
149 | { | |
150 | if (device_id == (remapped ? GOMP_DEVICE_HOST_FALLBACK | |
151 | : omp_initial_device)) | |
152 | return NULL; | |
153 | if (device_id == omp_invalid_device) | |
154 | gomp_fatal ("omp_invalid_device encountered"); | |
155 | else if (gomp_target_offload_var == GOMP_TARGET_OFFLOAD_MANDATORY) | |
156 | gomp_fatal ("OMP_TARGET_OFFLOAD is set to MANDATORY, " | |
157 | "but device not found"); | |
158 | ||
159 | return NULL; | |
160 | } | |
161 | else if (device_id >= gomp_get_num_devices ()) | |
1bfc07d1 KCY |
162 | { |
163 | if (gomp_target_offload_var == GOMP_TARGET_OFFLOAD_MANDATORY | |
74c9882b | 164 | && device_id != num_devices_openmp) |
1bfc07d1 KCY |
165 | gomp_fatal ("OMP_TARGET_OFFLOAD is set to MANDATORY, " |
166 | "but device not found"); | |
167 | ||
168 | return NULL; | |
169 | } | |
1df3f842 | 170 | |
d9a6bd32 | 171 | gomp_mutex_lock (&devices[device_id].lock); |
d84ffc0a | 172 | if (devices[device_id].state == GOMP_DEVICE_UNINITIALIZED) |
d9a6bd32 | 173 | gomp_init_device (&devices[device_id]); |
d84ffc0a IV |
174 | else if (devices[device_id].state == GOMP_DEVICE_FINALIZED) |
175 | { | |
176 | gomp_mutex_unlock (&devices[device_id].lock); | |
1bfc07d1 | 177 | |
74c9882b | 178 | if (gomp_target_offload_var == GOMP_TARGET_OFFLOAD_MANDATORY) |
1bfc07d1 KCY |
179 | gomp_fatal ("OMP_TARGET_OFFLOAD is set to MANDATORY, " |
180 | "but device is finalized"); | |
181 | ||
d84ffc0a IV |
182 | return NULL; |
183 | } | |
d9a6bd32 JJ |
184 | gomp_mutex_unlock (&devices[device_id].lock); |
185 | ||
1df3f842 JJ |
186 | return &devices[device_id]; |
187 | } | |
188 | ||
189 | ||
d9a6bd32 JJ |
190 | static inline splay_tree_key |
191 | gomp_map_lookup (splay_tree mem_map, splay_tree_key key) | |
192 | { | |
193 | if (key->host_start != key->host_end) | |
194 | return splay_tree_lookup (mem_map, key); | |
195 | ||
196 | key->host_end++; | |
197 | splay_tree_key n = splay_tree_lookup (mem_map, key); | |
198 | key->host_end--; | |
199 | if (n) | |
200 | return n; | |
201 | key->host_start--; | |
202 | n = splay_tree_lookup (mem_map, key); | |
203 | key->host_start++; | |
204 | if (n) | |
205 | return n; | |
206 | return splay_tree_lookup (mem_map, key); | |
207 | } | |
208 | ||
ea4b23d9 TB |
209 | static inline reverse_splay_tree_key |
210 | gomp_map_lookup_rev (reverse_splay_tree mem_map_rev, reverse_splay_tree_key key) | |
211 | { | |
212 | return reverse_splay_tree_lookup (mem_map_rev, key); | |
213 | } | |
214 | ||
e01d41e5 JJ |
215 | static inline splay_tree_key |
216 | gomp_map_0len_lookup (splay_tree mem_map, splay_tree_key key) | |
217 | { | |
218 | if (key->host_start != key->host_end) | |
219 | return splay_tree_lookup (mem_map, key); | |
220 | ||
221 | key->host_end++; | |
222 | splay_tree_key n = splay_tree_lookup (mem_map, key); | |
223 | key->host_end--; | |
224 | return n; | |
225 | } | |
226 | ||
6ce13072 CLT |
227 | static inline void |
228 | gomp_device_copy (struct gomp_device_descr *devicep, | |
229 | bool (*copy_func) (int, void *, const void *, size_t), | |
230 | const char *dst, void *dstaddr, | |
231 | const char *src, const void *srcaddr, | |
232 | size_t size) | |
233 | { | |
234 | if (!copy_func (devicep->target_id, dstaddr, srcaddr, size)) | |
235 | { | |
236 | gomp_mutex_unlock (&devicep->lock); | |
237 | gomp_fatal ("Copying of %s object [%p..%p) to %s object [%p..%p) failed", | |
238 | src, srcaddr, srcaddr + size, dst, dstaddr, dstaddr + size); | |
239 | } | |
240 | } | |
241 | ||
1f4c5b9b CLT |
242 | static inline void |
243 | goacc_device_copy_async (struct gomp_device_descr *devicep, | |
244 | bool (*copy_func) (int, void *, const void *, size_t, | |
245 | struct goacc_asyncqueue *), | |
246 | const char *dst, void *dstaddr, | |
247 | const char *src, const void *srcaddr, | |
9c41f5b9 | 248 | const void *srcaddr_orig, |
1f4c5b9b CLT |
249 | size_t size, struct goacc_asyncqueue *aq) |
250 | { | |
251 | if (!copy_func (devicep->target_id, dstaddr, srcaddr, size, aq)) | |
252 | { | |
253 | gomp_mutex_unlock (&devicep->lock); | |
9c41f5b9 JB |
254 | if (srcaddr_orig && srcaddr_orig != srcaddr) |
255 | gomp_fatal ("Copying of %s object [%p..%p)" | |
256 | " via buffer %s object [%p..%p)" | |
257 | " to %s object [%p..%p) failed", | |
258 | src, srcaddr_orig, srcaddr_orig + size, | |
259 | src, srcaddr, srcaddr + size, | |
260 | dst, dstaddr, dstaddr + size); | |
261 | else | |
262 | gomp_fatal ("Copying of %s object [%p..%p)" | |
263 | " to %s object [%p..%p) failed", | |
264 | src, srcaddr, srcaddr + size, | |
265 | dst, dstaddr, dstaddr + size); | |
1f4c5b9b CLT |
266 | } |
267 | } | |
268 | ||
7324369a JJ |
269 | /* Infrastructure for coalescing adjacent or nearly adjacent (in device addresses) |
270 | host to device memory transfers. */ | |
271 | ||
a44c1790 TS |
272 | struct gomp_coalesce_chunk |
273 | { | |
274 | /* The starting and ending point of a coalesced chunk of memory. */ | |
275 | size_t start, end; | |
276 | }; | |
277 | ||
7324369a JJ |
278 | struct gomp_coalesce_buf |
279 | { | |
280 | /* Buffer into which gomp_copy_host2dev will memcpy data and from which | |
281 | it will be copied to the device. */ | |
282 | void *buf; | |
283 | struct target_mem_desc *tgt; | |
a44c1790 TS |
284 | /* Array with offsets, chunks[i].start is the starting offset and |
285 | chunks[i].end ending offset relative to tgt->tgt_start device address | |
7324369a | 286 | of chunks which are to be copied to buf and later copied to device. */ |
a44c1790 | 287 | struct gomp_coalesce_chunk *chunks; |
7324369a JJ |
288 | /* Number of chunks in chunks array, or -1 if coalesce buffering should not |
289 | be performed. */ | |
290 | long chunk_cnt; | |
291 | /* During construction of chunks array, how many memory regions are within | |
292 | the last chunk. If there is just one memory region for a chunk, we copy | |
293 | it directly to device rather than going through buf. */ | |
294 | long use_cnt; | |
295 | }; | |
296 | ||
297 | /* Maximum size of memory region considered for coalescing. Larger copies | |
298 | are performed directly. */ | |
299 | #define MAX_COALESCE_BUF_SIZE (32 * 1024) | |
300 | ||
301 | /* Maximum size of a gap in between regions to consider them being copied | |
302 | within the same chunk. All the device offsets considered are within | |
303 | newly allocated device memory, so it isn't fatal if we copy some padding | |
304 | in between from host to device. The gaps come either from alignment | |
305 | padding or from memory regions which are not supposed to be copied from | |
306 | host to device (e.g. map(alloc:), map(from:) etc.). */ | |
307 | #define MAX_COALESCE_BUF_GAP (4 * 1024) | |
308 | ||
d88a6951 TS |
309 | /* Add region with device tgt_start relative offset and length to CBUF. |
310 | ||
311 | This must not be used for asynchronous copies, because the host data might | |
312 | not be computed yet (by an earlier asynchronous compute region, for | |
313 | example). | |
314 | TODO ... but we could allow CBUF usage for EPHEMERAL data? (Open question: | |
315 | is it more performant to use libgomp CBUF buffering or individual device | |
316 | asyncronous copying?) */ | |
7324369a JJ |
317 | |
318 | static inline void | |
319 | gomp_coalesce_buf_add (struct gomp_coalesce_buf *cbuf, size_t start, size_t len) | |
320 | { | |
321 | if (len > MAX_COALESCE_BUF_SIZE || len == 0) | |
322 | return; | |
323 | if (cbuf->chunk_cnt) | |
324 | { | |
325 | if (cbuf->chunk_cnt < 0) | |
326 | return; | |
a44c1790 | 327 | if (start < cbuf->chunks[cbuf->chunk_cnt - 1].end) |
7324369a JJ |
328 | { |
329 | cbuf->chunk_cnt = -1; | |
330 | return; | |
331 | } | |
a44c1790 | 332 | if (start < cbuf->chunks[cbuf->chunk_cnt - 1].end + MAX_COALESCE_BUF_GAP) |
7324369a | 333 | { |
a44c1790 | 334 | cbuf->chunks[cbuf->chunk_cnt - 1].end = start + len; |
7324369a JJ |
335 | cbuf->use_cnt++; |
336 | return; | |
337 | } | |
338 | /* If the last chunk is only used by one mapping, discard it, | |
339 | as it will be one host to device copy anyway and | |
340 | memcpying it around will only waste cycles. */ | |
341 | if (cbuf->use_cnt == 1) | |
342 | cbuf->chunk_cnt--; | |
343 | } | |
a44c1790 TS |
344 | cbuf->chunks[cbuf->chunk_cnt].start = start; |
345 | cbuf->chunks[cbuf->chunk_cnt].end = start + len; | |
7324369a JJ |
346 | cbuf->chunk_cnt++; |
347 | cbuf->use_cnt = 1; | |
348 | } | |
349 | ||
350 | /* Return true for mapping kinds which need to copy data from the | |
351 | host to device for regions that weren't previously mapped. */ | |
352 | ||
353 | static inline bool | |
354 | gomp_to_device_kind_p (int kind) | |
355 | { | |
356 | switch (kind) | |
357 | { | |
358 | case GOMP_MAP_ALLOC: | |
359 | case GOMP_MAP_FROM: | |
360 | case GOMP_MAP_FORCE_ALLOC: | |
cc3f11f5 | 361 | case GOMP_MAP_FORCE_FROM: |
7324369a JJ |
362 | case GOMP_MAP_ALWAYS_FROM: |
363 | return false; | |
364 | default: | |
365 | return true; | |
366 | } | |
367 | } | |
368 | ||
9c41f5b9 JB |
369 | /* Copy host memory to an offload device. In asynchronous mode (if AQ is |
370 | non-NULL), when the source data is stack or may otherwise be deallocated | |
371 | before the asynchronous copy takes place, EPHEMERAL must be passed as | |
372 | TRUE. */ | |
373 | ||
1f4c5b9b | 374 | attribute_hidden void |
6ce13072 | 375 | gomp_copy_host2dev (struct gomp_device_descr *devicep, |
1f4c5b9b | 376 | struct goacc_asyncqueue *aq, |
7324369a | 377 | void *d, const void *h, size_t sz, |
9c41f5b9 | 378 | bool ephemeral, struct gomp_coalesce_buf *cbuf) |
6ce13072 | 379 | { |
d88a6951 TS |
380 | if (__builtin_expect (aq != NULL, 0)) |
381 | { | |
382 | /* See 'gomp_coalesce_buf_add'. */ | |
383 | assert (!cbuf); | |
384 | ||
385 | void *h_buf = (void *) h; | |
386 | if (ephemeral) | |
387 | { | |
388 | /* We're queueing up an asynchronous copy from data that may | |
389 | disappear before the transfer takes place (i.e. because it is a | |
390 | stack local in a function that is no longer executing). Make a | |
391 | copy of the data into a temporary buffer in those cases. */ | |
392 | h_buf = gomp_malloc (sz); | |
393 | memcpy (h_buf, h, sz); | |
394 | } | |
395 | goacc_device_copy_async (devicep, devicep->openacc.async.host2dev_func, | |
396 | "dev", d, "host", h_buf, h, sz, aq); | |
397 | if (ephemeral) | |
398 | /* Free temporary buffer once the transfer has completed. */ | |
399 | devicep->openacc.async.queue_callback_func (aq, free, h_buf); | |
400 | ||
401 | return; | |
402 | } | |
403 | ||
7324369a JJ |
404 | if (cbuf) |
405 | { | |
406 | uintptr_t doff = (uintptr_t) d - cbuf->tgt->tgt_start; | |
a44c1790 | 407 | if (doff < cbuf->chunks[cbuf->chunk_cnt - 1].end) |
7324369a JJ |
408 | { |
409 | long first = 0; | |
410 | long last = cbuf->chunk_cnt - 1; | |
411 | while (first <= last) | |
412 | { | |
413 | long middle = (first + last) >> 1; | |
a44c1790 | 414 | if (cbuf->chunks[middle].end <= doff) |
7324369a | 415 | first = middle + 1; |
a44c1790 | 416 | else if (cbuf->chunks[middle].start <= doff) |
7324369a | 417 | { |
a44c1790 | 418 | if (doff + sz > cbuf->chunks[middle].end) |
ccfcf08e JB |
419 | { |
420 | gomp_mutex_unlock (&devicep->lock); | |
421 | gomp_fatal ("internal libgomp cbuf error"); | |
422 | } | |
a44c1790 | 423 | memcpy ((char *) cbuf->buf + (doff - cbuf->chunks[0].start), |
7324369a JJ |
424 | h, sz); |
425 | return; | |
426 | } | |
427 | else | |
428 | last = middle - 1; | |
429 | } | |
430 | } | |
431 | } | |
d88a6951 TS |
432 | |
433 | gomp_device_copy (devicep, devicep->host2dev_func, "dev", d, "host", h, sz); | |
6ce13072 CLT |
434 | } |
435 | ||
1f4c5b9b | 436 | attribute_hidden void |
6ce13072 | 437 | gomp_copy_dev2host (struct gomp_device_descr *devicep, |
1f4c5b9b | 438 | struct goacc_asyncqueue *aq, |
6ce13072 CLT |
439 | void *h, const void *d, size_t sz) |
440 | { | |
1f4c5b9b CLT |
441 | if (__builtin_expect (aq != NULL, 0)) |
442 | goacc_device_copy_async (devicep, devicep->openacc.async.dev2host_func, | |
9c41f5b9 | 443 | "host", h, "dev", d, NULL, sz, aq); |
1f4c5b9b CLT |
444 | else |
445 | gomp_device_copy (devicep, devicep->dev2host_func, "host", h, "dev", d, sz); | |
6ce13072 CLT |
446 | } |
447 | ||
448 | static void | |
449 | gomp_free_device_memory (struct gomp_device_descr *devicep, void *devptr) | |
450 | { | |
451 | if (!devicep->free_func (devicep->target_id, devptr)) | |
452 | { | |
453 | gomp_mutex_unlock (&devicep->lock); | |
454 | gomp_fatal ("error in freeing device memory block at %p", devptr); | |
455 | } | |
456 | } | |
457 | ||
275c736e CLT |
458 | /* Increment reference count of a splay_tree_key region K by 1. |
459 | If REFCOUNT_SET != NULL, use it to track already seen refcounts, and only | |
460 | increment the value if refcount is not yet contained in the set (used for | |
461 | OpenMP 5.0, which specifies that a region's refcount is adjusted at most | |
462 | once for each construct). */ | |
463 | ||
464 | static inline void | |
465 | gomp_increment_refcount (splay_tree_key k, htab_t *refcount_set) | |
466 | { | |
467 | if (k == NULL || k->refcount == REFCOUNT_INFINITY) | |
468 | return; | |
469 | ||
470 | uintptr_t *refcount_ptr = &k->refcount; | |
471 | ||
472 | if (REFCOUNT_STRUCTELEM_FIRST_P (k->refcount)) | |
473 | refcount_ptr = &k->structelem_refcount; | |
474 | else if (REFCOUNT_STRUCTELEM_P (k->refcount)) | |
475 | refcount_ptr = k->structelem_refcount_ptr; | |
476 | ||
477 | if (refcount_set) | |
478 | { | |
479 | if (htab_find (*refcount_set, refcount_ptr)) | |
480 | return; | |
481 | uintptr_t **slot = htab_find_slot (refcount_set, refcount_ptr, INSERT); | |
482 | *slot = refcount_ptr; | |
483 | } | |
484 | ||
485 | *refcount_ptr += 1; | |
486 | return; | |
487 | } | |
488 | ||
489 | /* Decrement reference count of a splay_tree_key region K by 1, or if DELETE_P | |
490 | is true, set reference count to zero. If REFCOUNT_SET != NULL, use it to | |
491 | track already seen refcounts, and only adjust the value if refcount is not | |
492 | yet contained in the set (like gomp_increment_refcount). | |
493 | ||
494 | Return out-values: set *DO_COPY to true if we set the refcount to zero, or | |
495 | it is already zero and we know we decremented it earlier. This signals that | |
496 | associated maps should be copied back to host. | |
497 | ||
498 | *DO_REMOVE is set to true when we this is the first handling of this refcount | |
499 | and we are setting it to zero. This signals a removal of this key from the | |
500 | splay-tree map. | |
501 | ||
502 | Copy and removal are separated due to cases like handling of structure | |
503 | elements, e.g. each map of a structure element representing a possible copy | |
504 | out of a structure field has to be handled individually, but we only signal | |
505 | removal for one (the first encountered) sibing map. */ | |
506 | ||
507 | static inline void | |
508 | gomp_decrement_refcount (splay_tree_key k, htab_t *refcount_set, bool delete_p, | |
509 | bool *do_copy, bool *do_remove) | |
510 | { | |
511 | if (k == NULL || k->refcount == REFCOUNT_INFINITY) | |
512 | { | |
513 | *do_copy = *do_remove = false; | |
514 | return; | |
515 | } | |
516 | ||
517 | uintptr_t *refcount_ptr = &k->refcount; | |
518 | ||
519 | if (REFCOUNT_STRUCTELEM_FIRST_P (k->refcount)) | |
520 | refcount_ptr = &k->structelem_refcount; | |
521 | else if (REFCOUNT_STRUCTELEM_P (k->refcount)) | |
522 | refcount_ptr = k->structelem_refcount_ptr; | |
523 | ||
524 | bool new_encountered_refcount; | |
525 | bool set_to_zero = false; | |
526 | bool is_zero = false; | |
527 | ||
528 | uintptr_t orig_refcount = *refcount_ptr; | |
529 | ||
530 | if (refcount_set) | |
531 | { | |
532 | if (htab_find (*refcount_set, refcount_ptr)) | |
533 | { | |
534 | new_encountered_refcount = false; | |
535 | goto end; | |
536 | } | |
537 | ||
538 | uintptr_t **slot = htab_find_slot (refcount_set, refcount_ptr, INSERT); | |
539 | *slot = refcount_ptr; | |
540 | new_encountered_refcount = true; | |
541 | } | |
542 | else | |
543 | /* If no refcount_set being used, assume all keys are being decremented | |
544 | for the first time. */ | |
545 | new_encountered_refcount = true; | |
546 | ||
547 | if (delete_p) | |
548 | *refcount_ptr = 0; | |
549 | else if (*refcount_ptr > 0) | |
550 | *refcount_ptr -= 1; | |
551 | ||
552 | end: | |
553 | if (*refcount_ptr == 0) | |
554 | { | |
555 | if (orig_refcount > 0) | |
556 | set_to_zero = true; | |
557 | ||
558 | is_zero = true; | |
559 | } | |
560 | ||
561 | *do_copy = (set_to_zero || (!new_encountered_refcount && is_zero)); | |
562 | *do_remove = (new_encountered_refcount && set_to_zero); | |
563 | } | |
564 | ||
e01d41e5 JJ |
565 | /* Handle the case where gomp_map_lookup, splay_tree_lookup or |
566 | gomp_map_0len_lookup found oldn for newn. | |
1df3f842 JJ |
567 | Helper function of gomp_map_vars. */ |
568 | ||
569 | static inline void | |
1f4c5b9b CLT |
570 | gomp_map_vars_existing (struct gomp_device_descr *devicep, |
571 | struct goacc_asyncqueue *aq, splay_tree_key oldn, | |
d9a6bd32 | 572 | splay_tree_key newn, struct target_var_desc *tgt_var, |
b7e20480 | 573 | unsigned char kind, bool always_to_flag, bool implicit, |
275c736e CLT |
574 | struct gomp_coalesce_buf *cbuf, |
575 | htab_t *refcount_set) | |
1df3f842 | 576 | { |
0ab29cf0 CLT |
577 | assert (kind != GOMP_MAP_ATTACH |
578 | || kind != GOMP_MAP_ATTACH_ZERO_LENGTH_ARRAY_SECTION); | |
aff43ac0 | 579 | |
d9a6bd32 JJ |
580 | tgt_var->key = oldn; |
581 | tgt_var->copy_from = GOMP_MAP_COPY_FROM_P (kind); | |
582 | tgt_var->always_copy_from = GOMP_MAP_ALWAYS_FROM_P (kind); | |
bc4ed079 | 583 | tgt_var->is_attach = false; |
d9a6bd32 | 584 | tgt_var->offset = newn->host_start - oldn->host_start; |
b7e20480 CLT |
585 | |
586 | /* For implicit maps, old contained in new is valid. */ | |
587 | bool implicit_subset = (implicit | |
588 | && newn->host_start <= oldn->host_start | |
589 | && oldn->host_end <= newn->host_end); | |
590 | if (implicit_subset) | |
591 | tgt_var->length = oldn->host_end - oldn->host_start; | |
592 | else | |
593 | tgt_var->length = newn->host_end - newn->host_start; | |
d9a6bd32 | 594 | |
41dbbb37 | 595 | if ((kind & GOMP_MAP_FLAG_FORCE) |
b7e20480 CLT |
596 | /* For implicit maps, old contained in new is valid. */ |
597 | || !(implicit_subset | |
598 | /* Otherwise, new contained inside old is considered valid. */ | |
599 | || (oldn->host_start <= newn->host_start | |
600 | && newn->host_end <= oldn->host_end))) | |
a51df54e IV |
601 | { |
602 | gomp_mutex_unlock (&devicep->lock); | |
603 | gomp_fatal ("Trying to map into device [%p..%p) object when " | |
604 | "[%p..%p) is already mapped", | |
605 | (void *) newn->host_start, (void *) newn->host_end, | |
606 | (void *) oldn->host_start, (void *) oldn->host_end); | |
607 | } | |
d9a6bd32 | 608 | |
972da557 | 609 | if (GOMP_MAP_ALWAYS_TO_P (kind) || always_to_flag) |
b7e20480 CLT |
610 | { |
611 | /* Implicit + always should not happen. If this does occur, below | |
612 | address/length adjustment is a TODO. */ | |
613 | assert (!implicit_subset); | |
614 | ||
6c039937 CLT |
615 | if (oldn->aux && oldn->aux->attach_count) |
616 | { | |
617 | /* We have to be careful not to overwrite still attached pointers | |
618 | during the copyback to host. */ | |
619 | uintptr_t addr = newn->host_start; | |
620 | while (addr < newn->host_end) | |
621 | { | |
622 | size_t i = (addr - oldn->host_start) / sizeof (void *); | |
623 | if (oldn->aux->attach_count[i] == 0) | |
624 | gomp_copy_host2dev (devicep, aq, | |
625 | (void *) (oldn->tgt->tgt_start | |
626 | + oldn->tgt_offset | |
627 | + addr - oldn->host_start), | |
628 | (void *) addr, | |
629 | sizeof (void *), false, cbuf); | |
630 | addr += sizeof (void *); | |
631 | } | |
632 | } | |
633 | else | |
634 | gomp_copy_host2dev (devicep, aq, | |
635 | (void *) (oldn->tgt->tgt_start + oldn->tgt_offset | |
636 | + newn->host_start - oldn->host_start), | |
637 | (void *) newn->host_start, | |
638 | newn->host_end - newn->host_start, false, cbuf); | |
b7e20480 | 639 | } |
6ce13072 | 640 | |
275c736e | 641 | gomp_increment_refcount (oldn, refcount_set); |
1df3f842 JJ |
642 | } |
643 | ||
41dbbb37 | 644 | static int |
d9a6bd32 | 645 | get_kind (bool short_mapkind, void *kinds, int idx) |
41dbbb37 | 646 | { |
b7e20480 CLT |
647 | if (!short_mapkind) |
648 | return ((unsigned char *) kinds)[idx]; | |
649 | ||
650 | int val = ((unsigned short *) kinds)[idx]; | |
651 | if (GOMP_MAP_IMPLICIT_P (val)) | |
652 | val &= ~GOMP_MAP_IMPLICIT; | |
653 | return val; | |
654 | } | |
655 | ||
656 | ||
657 | static bool | |
658 | get_implicit (bool short_mapkind, void *kinds, int idx) | |
659 | { | |
660 | if (!short_mapkind) | |
661 | return false; | |
662 | ||
663 | int val = ((unsigned short *) kinds)[idx]; | |
664 | return GOMP_MAP_IMPLICIT_P (val); | |
41dbbb37 TS |
665 | } |
666 | ||
1716efeb | 667 | static void |
1f4c5b9b CLT |
668 | gomp_map_pointer (struct target_mem_desc *tgt, struct goacc_asyncqueue *aq, |
669 | uintptr_t host_ptr, uintptr_t target_offset, uintptr_t bias, | |
0ab29cf0 CLT |
670 | struct gomp_coalesce_buf *cbuf, |
671 | bool allow_zero_length_array_sections) | |
1716efeb CLT |
672 | { |
673 | struct gomp_device_descr *devicep = tgt->device_descr; | |
674 | struct splay_tree_s *mem_map = &devicep->mem_map; | |
675 | struct splay_tree_key_s cur_node; | |
676 | ||
677 | cur_node.host_start = host_ptr; | |
678 | if (cur_node.host_start == (uintptr_t) NULL) | |
679 | { | |
680 | cur_node.tgt_offset = (uintptr_t) NULL; | |
1f4c5b9b | 681 | gomp_copy_host2dev (devicep, aq, |
6ce13072 | 682 | (void *) (tgt->tgt_start + target_offset), |
9c41f5b9 JB |
683 | (void *) &cur_node.tgt_offset, sizeof (void *), |
684 | true, cbuf); | |
1716efeb CLT |
685 | return; |
686 | } | |
687 | /* Add bias to the pointer value. */ | |
688 | cur_node.host_start += bias; | |
d9a6bd32 JJ |
689 | cur_node.host_end = cur_node.host_start; |
690 | splay_tree_key n = gomp_map_lookup (mem_map, &cur_node); | |
1716efeb CLT |
691 | if (n == NULL) |
692 | { | |
0ab29cf0 CLT |
693 | if (allow_zero_length_array_sections) |
694 | cur_node.tgt_offset = 0; | |
695 | else | |
696 | { | |
697 | gomp_mutex_unlock (&devicep->lock); | |
698 | gomp_fatal ("Pointer target of array section wasn't mapped"); | |
699 | } | |
700 | } | |
701 | else | |
702 | { | |
703 | cur_node.host_start -= n->host_start; | |
704 | cur_node.tgt_offset | |
705 | = n->tgt->tgt_start + n->tgt_offset + cur_node.host_start; | |
706 | /* At this point tgt_offset is target address of the | |
707 | array section. Now subtract bias to get what we want | |
708 | to initialize the pointer with. */ | |
709 | cur_node.tgt_offset -= bias; | |
1716efeb | 710 | } |
1f4c5b9b | 711 | gomp_copy_host2dev (devicep, aq, (void *) (tgt->tgt_start + target_offset), |
9c41f5b9 JB |
712 | (void *) &cur_node.tgt_offset, sizeof (void *), |
713 | true, cbuf); | |
1716efeb CLT |
714 | } |
715 | ||
d9a6bd32 | 716 | static void |
1f4c5b9b CLT |
717 | gomp_map_fields_existing (struct target_mem_desc *tgt, |
718 | struct goacc_asyncqueue *aq, splay_tree_key n, | |
d9a6bd32 | 719 | size_t first, size_t i, void **hostaddrs, |
7324369a | 720 | size_t *sizes, void *kinds, |
275c736e | 721 | struct gomp_coalesce_buf *cbuf, htab_t *refcount_set) |
d9a6bd32 JJ |
722 | { |
723 | struct gomp_device_descr *devicep = tgt->device_descr; | |
724 | struct splay_tree_s *mem_map = &devicep->mem_map; | |
725 | struct splay_tree_key_s cur_node; | |
726 | int kind; | |
b7e20480 | 727 | bool implicit; |
d9a6bd32 JJ |
728 | const bool short_mapkind = true; |
729 | const int typemask = short_mapkind ? 0xff : 0x7; | |
730 | ||
731 | cur_node.host_start = (uintptr_t) hostaddrs[i]; | |
732 | cur_node.host_end = cur_node.host_start + sizes[i]; | |
733 | splay_tree_key n2 = splay_tree_lookup (mem_map, &cur_node); | |
734 | kind = get_kind (short_mapkind, kinds, i); | |
b7e20480 | 735 | implicit = get_implicit (short_mapkind, kinds, i); |
d9a6bd32 JJ |
736 | if (n2 |
737 | && n2->tgt == n->tgt | |
738 | && n2->host_start - n->host_start == n2->tgt_offset - n->tgt_offset) | |
739 | { | |
972da557 | 740 | gomp_map_vars_existing (devicep, aq, n2, &cur_node, &tgt->list[i], |
b7e20480 CLT |
741 | kind & typemask, false, implicit, cbuf, |
742 | refcount_set); | |
d9a6bd32 JJ |
743 | return; |
744 | } | |
745 | if (sizes[i] == 0) | |
746 | { | |
747 | if (cur_node.host_start > (uintptr_t) hostaddrs[first - 1]) | |
748 | { | |
749 | cur_node.host_start--; | |
750 | n2 = splay_tree_lookup (mem_map, &cur_node); | |
751 | cur_node.host_start++; | |
752 | if (n2 | |
753 | && n2->tgt == n->tgt | |
754 | && n2->host_start - n->host_start | |
755 | == n2->tgt_offset - n->tgt_offset) | |
756 | { | |
972da557 | 757 | gomp_map_vars_existing (devicep, aq, n2, &cur_node, &tgt->list[i], |
b7e20480 CLT |
758 | kind & typemask, false, implicit, cbuf, |
759 | refcount_set); | |
d9a6bd32 JJ |
760 | return; |
761 | } | |
762 | } | |
763 | cur_node.host_end++; | |
764 | n2 = splay_tree_lookup (mem_map, &cur_node); | |
765 | cur_node.host_end--; | |
766 | if (n2 | |
767 | && n2->tgt == n->tgt | |
768 | && n2->host_start - n->host_start == n2->tgt_offset - n->tgt_offset) | |
769 | { | |
1f4c5b9b | 770 | gomp_map_vars_existing (devicep, aq, n2, &cur_node, &tgt->list[i], |
b7e20480 CLT |
771 | kind & typemask, false, implicit, cbuf, |
772 | refcount_set); | |
d9a6bd32 JJ |
773 | return; |
774 | } | |
775 | } | |
776 | gomp_mutex_unlock (&devicep->lock); | |
777 | gomp_fatal ("Trying to map into device [%p..%p) structure element when " | |
778 | "other mapped elements from the same structure weren't mapped " | |
779 | "together with it", (void *) cur_node.host_start, | |
780 | (void *) cur_node.host_end); | |
781 | } | |
782 | ||
5d5be7bf JB |
783 | attribute_hidden void |
784 | gomp_attach_pointer (struct gomp_device_descr *devicep, | |
785 | struct goacc_asyncqueue *aq, splay_tree mem_map, | |
786 | splay_tree_key n, uintptr_t attach_to, size_t bias, | |
0ab29cf0 CLT |
787 | struct gomp_coalesce_buf *cbufp, |
788 | bool allow_zero_length_array_sections) | |
5d5be7bf JB |
789 | { |
790 | struct splay_tree_key_s s; | |
791 | size_t size, idx; | |
792 | ||
793 | if (n == NULL) | |
794 | { | |
795 | gomp_mutex_unlock (&devicep->lock); | |
796 | gomp_fatal ("enclosing struct not mapped for attach"); | |
797 | } | |
798 | ||
799 | size = (n->host_end - n->host_start + sizeof (void *) - 1) / sizeof (void *); | |
800 | /* We might have a pointer in a packed struct: however we cannot have more | |
801 | than one such pointer in each pointer-sized portion of the struct, so | |
802 | this is safe. */ | |
803 | idx = (attach_to - n->host_start) / sizeof (void *); | |
804 | ||
805 | if (!n->aux) | |
806 | n->aux = gomp_malloc_cleared (sizeof (struct splay_tree_aux)); | |
807 | ||
808 | if (!n->aux->attach_count) | |
809 | n->aux->attach_count | |
810 | = gomp_malloc_cleared (sizeof (*n->aux->attach_count) * size); | |
811 | ||
812 | if (n->aux->attach_count[idx] < UINTPTR_MAX) | |
813 | n->aux->attach_count[idx]++; | |
814 | else | |
815 | { | |
816 | gomp_mutex_unlock (&devicep->lock); | |
817 | gomp_fatal ("attach count overflow"); | |
818 | } | |
819 | ||
820 | if (n->aux->attach_count[idx] == 1) | |
821 | { | |
822 | uintptr_t devptr = n->tgt->tgt_start + n->tgt_offset + attach_to | |
823 | - n->host_start; | |
824 | uintptr_t target = (uintptr_t) *(void **) attach_to; | |
825 | splay_tree_key tn; | |
826 | uintptr_t data; | |
827 | ||
828 | if ((void *) target == NULL) | |
829 | { | |
830 | gomp_mutex_unlock (&devicep->lock); | |
831 | gomp_fatal ("attempt to attach null pointer"); | |
832 | } | |
833 | ||
834 | s.host_start = target + bias; | |
835 | s.host_end = s.host_start + 1; | |
836 | tn = splay_tree_lookup (mem_map, &s); | |
837 | ||
838 | if (!tn) | |
839 | { | |
0ab29cf0 CLT |
840 | if (allow_zero_length_array_sections) |
841 | /* When allowing attachment to zero-length array sections, we | |
842 | allow attaching to NULL pointers when the target region is not | |
843 | mapped. */ | |
844 | data = 0; | |
845 | else | |
846 | { | |
847 | gomp_mutex_unlock (&devicep->lock); | |
848 | gomp_fatal ("pointer target not mapped for attach"); | |
849 | } | |
5d5be7bf | 850 | } |
0ab29cf0 CLT |
851 | else |
852 | data = tn->tgt->tgt_start + tn->tgt_offset + target - tn->host_start; | |
5d5be7bf JB |
853 | |
854 | gomp_debug (1, | |
855 | "%s: attaching host %p, target %p (struct base %p) to %p\n", | |
856 | __FUNCTION__, (void *) attach_to, (void *) devptr, | |
857 | (void *) (n->tgt->tgt_start + n->tgt_offset), (void *) data); | |
858 | ||
859 | gomp_copy_host2dev (devicep, aq, (void *) devptr, (void *) &data, | |
9c41f5b9 | 860 | sizeof (void *), true, cbufp); |
5d5be7bf JB |
861 | } |
862 | else | |
863 | gomp_debug (1, "%s: attach count for %p -> %u\n", __FUNCTION__, | |
864 | (void *) attach_to, (int) n->aux->attach_count[idx]); | |
865 | } | |
866 | ||
867 | attribute_hidden void | |
868 | gomp_detach_pointer (struct gomp_device_descr *devicep, | |
869 | struct goacc_asyncqueue *aq, splay_tree_key n, | |
870 | uintptr_t detach_from, bool finalize, | |
871 | struct gomp_coalesce_buf *cbufp) | |
872 | { | |
873 | size_t idx; | |
874 | ||
875 | if (n == NULL) | |
876 | { | |
877 | gomp_mutex_unlock (&devicep->lock); | |
878 | gomp_fatal ("enclosing struct not mapped for detach"); | |
879 | } | |
880 | ||
881 | idx = (detach_from - n->host_start) / sizeof (void *); | |
882 | ||
883 | if (!n->aux || !n->aux->attach_count) | |
884 | { | |
885 | gomp_mutex_unlock (&devicep->lock); | |
886 | gomp_fatal ("no attachment counters for struct"); | |
887 | } | |
888 | ||
889 | if (finalize) | |
890 | n->aux->attach_count[idx] = 1; | |
891 | ||
892 | if (n->aux->attach_count[idx] == 0) | |
893 | { | |
894 | gomp_mutex_unlock (&devicep->lock); | |
895 | gomp_fatal ("attach count underflow"); | |
896 | } | |
897 | else | |
898 | n->aux->attach_count[idx]--; | |
899 | ||
900 | if (n->aux->attach_count[idx] == 0) | |
901 | { | |
902 | uintptr_t devptr = n->tgt->tgt_start + n->tgt_offset + detach_from | |
903 | - n->host_start; | |
904 | uintptr_t target = (uintptr_t) *(void **) detach_from; | |
905 | ||
906 | gomp_debug (1, | |
907 | "%s: detaching host %p, target %p (struct base %p) to %p\n", | |
908 | __FUNCTION__, (void *) detach_from, (void *) devptr, | |
909 | (void *) (n->tgt->tgt_start + n->tgt_offset), | |
910 | (void *) target); | |
911 | ||
912 | gomp_copy_host2dev (devicep, aq, (void *) devptr, (void *) &target, | |
9c41f5b9 | 913 | sizeof (void *), true, cbufp); |
5d5be7bf JB |
914 | } |
915 | else | |
916 | gomp_debug (1, "%s: attach count for %p -> %u\n", __FUNCTION__, | |
917 | (void *) detach_from, (int) n->aux->attach_count[idx]); | |
918 | } | |
919 | ||
5bcd470b | 920 | attribute_hidden uintptr_t |
e01d41e5 JJ |
921 | gomp_map_val (struct target_mem_desc *tgt, void **hostaddrs, size_t i) |
922 | { | |
923 | if (tgt->list[i].key != NULL) | |
924 | return tgt->list[i].key->tgt->tgt_start | |
925 | + tgt->list[i].key->tgt_offset | |
926 | + tgt->list[i].offset; | |
6c7e076b JB |
927 | |
928 | switch (tgt->list[i].offset) | |
929 | { | |
930 | case OFFSET_INLINED: | |
931 | return (uintptr_t) hostaddrs[i]; | |
932 | ||
933 | case OFFSET_POINTER: | |
934 | return 0; | |
935 | ||
936 | case OFFSET_STRUCT: | |
937 | return tgt->list[i + 1].key->tgt->tgt_start | |
938 | + tgt->list[i + 1].key->tgt_offset | |
939 | + tgt->list[i + 1].offset | |
940 | + (uintptr_t) hostaddrs[i] | |
941 | - (uintptr_t) hostaddrs[i + 1]; | |
942 | ||
943 | default: | |
944 | return tgt->tgt_start + tgt->list[i].offset; | |
945 | } | |
e01d41e5 JJ |
946 | } |
947 | ||
1f4c5b9b CLT |
948 | static inline __attribute__((always_inline)) struct target_mem_desc * |
949 | gomp_map_vars_internal (struct gomp_device_descr *devicep, | |
950 | struct goacc_asyncqueue *aq, size_t mapnum, | |
951 | void **hostaddrs, void **devaddrs, size_t *sizes, | |
952 | void *kinds, bool short_mapkind, | |
275c736e | 953 | htab_t *refcount_set, |
1f4c5b9b | 954 | enum gomp_map_vars_kind pragma_kind) |
1df3f842 JJ |
955 | { |
956 | size_t i, tgt_align, tgt_size, not_found_cnt = 0; | |
d9a6bd32 | 957 | bool has_firstprivate = false; |
972da557 | 958 | bool has_always_ptrset = false; |
275c736e | 959 | bool openmp_p = (pragma_kind & GOMP_MAP_VARS_OPENACC) == 0; |
d9a6bd32 JJ |
960 | const int rshift = short_mapkind ? 8 : 3; |
961 | const int typemask = short_mapkind ? 0xff : 0x7; | |
a51df54e | 962 | struct splay_tree_s *mem_map = &devicep->mem_map; |
1df3f842 JJ |
963 | struct splay_tree_key_s cur_node; |
964 | struct target_mem_desc *tgt | |
965 | = gomp_malloc (sizeof (*tgt) + sizeof (tgt->list[0]) * mapnum); | |
966 | tgt->list_count = mapnum; | |
9e628024 | 967 | tgt->refcount = (pragma_kind & GOMP_MAP_VARS_ENTER_DATA) ? 0 : 1; |
1df3f842 | 968 | tgt->device_descr = devicep; |
378da98f | 969 | tgt->prev = NULL; |
7324369a | 970 | struct gomp_coalesce_buf cbuf, *cbufp = NULL; |
1df3f842 JJ |
971 | |
972 | if (mapnum == 0) | |
3837c6d6 IV |
973 | { |
974 | tgt->tgt_start = 0; | |
975 | tgt->tgt_end = 0; | |
976 | return tgt; | |
977 | } | |
1df3f842 JJ |
978 | |
979 | tgt_align = sizeof (void *); | |
980 | tgt_size = 0; | |
7324369a JJ |
981 | cbuf.chunks = NULL; |
982 | cbuf.chunk_cnt = -1; | |
983 | cbuf.use_cnt = 0; | |
984 | cbuf.buf = NULL; | |
985 | if (mapnum > 1 || pragma_kind == GOMP_MAP_VARS_TARGET) | |
986 | { | |
a44c1790 TS |
987 | size_t chunks_size = (mapnum + 1) * sizeof (struct gomp_coalesce_chunk); |
988 | cbuf.chunks = (struct gomp_coalesce_chunk *) gomp_alloca (chunks_size); | |
7324369a JJ |
989 | cbuf.chunk_cnt = 0; |
990 | } | |
d9a6bd32 | 991 | if (pragma_kind == GOMP_MAP_VARS_TARGET) |
1df3f842 JJ |
992 | { |
993 | size_t align = 4 * sizeof (void *); | |
994 | tgt_align = align; | |
995 | tgt_size = mapnum * sizeof (void *); | |
7324369a JJ |
996 | cbuf.chunk_cnt = 1; |
997 | cbuf.use_cnt = 1 + (mapnum > 1); | |
a44c1790 TS |
998 | cbuf.chunks[0].start = 0; |
999 | cbuf.chunks[0].end = tgt_size; | |
1df3f842 JJ |
1000 | } |
1001 | ||
a51df54e | 1002 | gomp_mutex_lock (&devicep->lock); |
d84ffc0a IV |
1003 | if (devicep->state == GOMP_DEVICE_FINALIZED) |
1004 | { | |
1005 | gomp_mutex_unlock (&devicep->lock); | |
1006 | free (tgt); | |
1007 | return NULL; | |
1008 | } | |
41dbbb37 | 1009 | |
1df3f842 JJ |
1010 | for (i = 0; i < mapnum; i++) |
1011 | { | |
d9a6bd32 | 1012 | int kind = get_kind (short_mapkind, kinds, i); |
b7e20480 | 1013 | bool implicit = get_implicit (short_mapkind, kinds, i); |
d9a6bd32 JJ |
1014 | if (hostaddrs[i] == NULL |
1015 | || (kind & typemask) == GOMP_MAP_FIRSTPRIVATE_INT) | |
1df3f842 | 1016 | { |
d9a6bd32 | 1017 | tgt->list[i].key = NULL; |
6c7e076b | 1018 | tgt->list[i].offset = OFFSET_INLINED; |
d9a6bd32 JJ |
1019 | continue; |
1020 | } | |
d5c23c6c TB |
1021 | else if ((kind & typemask) == GOMP_MAP_USE_DEVICE_PTR |
1022 | || (kind & typemask) == GOMP_MAP_USE_DEVICE_PTR_IF_PRESENT) | |
d9a6bd32 | 1023 | { |
8860d270 JJ |
1024 | tgt->list[i].key = NULL; |
1025 | if (!not_found_cnt) | |
d9a6bd32 | 1026 | { |
7d48e14f JJ |
1027 | /* In OpenMP < 5.0 and OpenACC the mapping has to be done |
1028 | on a separate construct prior to using use_device_{addr,ptr}. | |
1029 | In OpenMP 5.0, map directives need to be ordered by the | |
1030 | middle-end before the use_device_* clauses. If | |
1031 | !not_found_cnt, all mappings requested (if any) are already | |
1032 | mapped, so use_device_{addr,ptr} can be resolved right away. | |
1033 | Otherwise, if not_found_cnt, gomp_map_lookup might fail | |
1034 | now but would succeed after performing the mappings in the | |
1035 | following loop. We can't defer this always to the second | |
1036 | loop, because it is not even invoked when !not_found_cnt | |
1037 | after the first loop. */ | |
1038 | cur_node.host_start = (uintptr_t) hostaddrs[i]; | |
1039 | cur_node.host_end = cur_node.host_start; | |
1040 | splay_tree_key n = gomp_map_lookup (mem_map, &cur_node); | |
b3b75e66 TS |
1041 | if (n != NULL) |
1042 | { | |
1043 | cur_node.host_start -= n->host_start; | |
1044 | hostaddrs[i] | |
1045 | = (void *) (n->tgt->tgt_start + n->tgt_offset | |
1046 | + cur_node.host_start); | |
1047 | } | |
1048 | else if ((kind & typemask) == GOMP_MAP_USE_DEVICE_PTR) | |
7d48e14f JJ |
1049 | { |
1050 | gomp_mutex_unlock (&devicep->lock); | |
1051 | gomp_fatal ("use_device_ptr pointer wasn't mapped"); | |
1052 | } | |
b3b75e66 TS |
1053 | else if ((kind & typemask) == GOMP_MAP_USE_DEVICE_PTR_IF_PRESENT) |
1054 | /* If not present, continue using the host address. */ | |
1055 | ; | |
1056 | else | |
1057 | __builtin_unreachable (); | |
1058 | tgt->list[i].offset = OFFSET_INLINED; | |
d9a6bd32 | 1059 | } |
8860d270 JJ |
1060 | else |
1061 | tgt->list[i].offset = 0; | |
d9a6bd32 JJ |
1062 | continue; |
1063 | } | |
1064 | else if ((kind & typemask) == GOMP_MAP_STRUCT) | |
1065 | { | |
1066 | size_t first = i + 1; | |
1067 | size_t last = i + sizes[i]; | |
1068 | cur_node.host_start = (uintptr_t) hostaddrs[i]; | |
1069 | cur_node.host_end = (uintptr_t) hostaddrs[last] | |
1070 | + sizes[last]; | |
1071 | tgt->list[i].key = NULL; | |
6c7e076b | 1072 | tgt->list[i].offset = OFFSET_STRUCT; |
d9a6bd32 JJ |
1073 | splay_tree_key n = splay_tree_lookup (mem_map, &cur_node); |
1074 | if (n == NULL) | |
1075 | { | |
1076 | size_t align = (size_t) 1 << (kind >> rshift); | |
1077 | if (tgt_align < align) | |
1078 | tgt_align = align; | |
7324369a | 1079 | tgt_size -= (uintptr_t) hostaddrs[first] - cur_node.host_start; |
d9a6bd32 | 1080 | tgt_size = (tgt_size + align - 1) & ~(align - 1); |
7324369a | 1081 | tgt_size += cur_node.host_end - cur_node.host_start; |
d9a6bd32 JJ |
1082 | not_found_cnt += last - i; |
1083 | for (i = first; i <= last; i++) | |
7324369a JJ |
1084 | { |
1085 | tgt->list[i].key = NULL; | |
d88a6951 TS |
1086 | if (!aq |
1087 | && gomp_to_device_kind_p (get_kind (short_mapkind, kinds, i) | |
1088 | & typemask)) | |
7324369a JJ |
1089 | gomp_coalesce_buf_add (&cbuf, |
1090 | tgt_size - cur_node.host_end | |
1091 | + (uintptr_t) hostaddrs[i], | |
1092 | sizes[i]); | |
1093 | } | |
d9a6bd32 JJ |
1094 | i--; |
1095 | continue; | |
1096 | } | |
1097 | for (i = first; i <= last; i++) | |
1f4c5b9b | 1098 | gomp_map_fields_existing (tgt, aq, n, first, i, hostaddrs, |
275c736e | 1099 | sizes, kinds, NULL, refcount_set); |
d9a6bd32 | 1100 | i--; |
1df3f842 JJ |
1101 | continue; |
1102 | } | |
e01d41e5 JJ |
1103 | else if ((kind & typemask) == GOMP_MAP_ALWAYS_POINTER) |
1104 | { | |
1105 | tgt->list[i].key = NULL; | |
6c7e076b | 1106 | tgt->list[i].offset = OFFSET_POINTER; |
e01d41e5 JJ |
1107 | has_firstprivate = true; |
1108 | continue; | |
1109 | } | |
0ab29cf0 CLT |
1110 | else if ((kind & typemask) == GOMP_MAP_ATTACH |
1111 | || ((kind & typemask) | |
1112 | == GOMP_MAP_ATTACH_ZERO_LENGTH_ARRAY_SECTION)) | |
8e7e71ff JB |
1113 | { |
1114 | tgt->list[i].key = NULL; | |
1115 | has_firstprivate = true; | |
1116 | continue; | |
1117 | } | |
1df3f842 | 1118 | cur_node.host_start = (uintptr_t) hostaddrs[i]; |
aff43ac0 | 1119 | if (!GOMP_MAP_POINTER_P (kind & typemask)) |
1df3f842 JJ |
1120 | cur_node.host_end = cur_node.host_start + sizes[i]; |
1121 | else | |
1122 | cur_node.host_end = cur_node.host_start + sizeof (void *); | |
d9a6bd32 JJ |
1123 | if ((kind & typemask) == GOMP_MAP_FIRSTPRIVATE) |
1124 | { | |
1125 | tgt->list[i].key = NULL; | |
1126 | ||
1127 | size_t align = (size_t) 1 << (kind >> rshift); | |
1128 | if (tgt_align < align) | |
1129 | tgt_align = align; | |
1130 | tgt_size = (tgt_size + align - 1) & ~(align - 1); | |
d88a6951 TS |
1131 | if (!aq) |
1132 | gomp_coalesce_buf_add (&cbuf, tgt_size, | |
1133 | cur_node.host_end - cur_node.host_start); | |
d9a6bd32 JJ |
1134 | tgt_size += cur_node.host_end - cur_node.host_start; |
1135 | has_firstprivate = true; | |
1136 | continue; | |
1137 | } | |
1138 | splay_tree_key n; | |
1139 | if ((kind & typemask) == GOMP_MAP_ZERO_LEN_ARRAY_SECTION) | |
1df3f842 | 1140 | { |
e01d41e5 | 1141 | n = gomp_map_0len_lookup (mem_map, &cur_node); |
d9a6bd32 JJ |
1142 | if (!n) |
1143 | { | |
1144 | tgt->list[i].key = NULL; | |
6c7e076b | 1145 | tgt->list[i].offset = OFFSET_POINTER; |
d9a6bd32 JJ |
1146 | continue; |
1147 | } | |
1df3f842 | 1148 | } |
d9a6bd32 JJ |
1149 | else |
1150 | n = splay_tree_lookup (mem_map, &cur_node); | |
4a38b02b | 1151 | if (n && n->refcount != REFCOUNT_LINK) |
972da557 TB |
1152 | { |
1153 | int always_to_cnt = 0; | |
1154 | if ((kind & typemask) == GOMP_MAP_TO_PSET) | |
1155 | { | |
1b9bdd52 | 1156 | bool has_nullptr = false; |
972da557 TB |
1157 | size_t j; |
1158 | for (j = 0; j < n->tgt->list_count; j++) | |
1159 | if (n->tgt->list[j].key == n) | |
1160 | { | |
1161 | has_nullptr = n->tgt->list[j].has_null_ptr_assoc; | |
1162 | break; | |
1163 | } | |
1164 | if (n->tgt->list_count == 0) | |
1165 | { | |
1166 | /* 'declare target'; assume has_nullptr; it could also be | |
1167 | statically assigned pointer, but that it should be to | |
1168 | the equivalent variable on the host. */ | |
1169 | assert (n->refcount == REFCOUNT_INFINITY); | |
1170 | has_nullptr = true; | |
1171 | } | |
1172 | else | |
1173 | assert (j < n->tgt->list_count); | |
1174 | /* Re-map the data if there is an 'always' modifier or if it a | |
1175 | null pointer was there and non a nonnull has been found; that | |
1176 | permits transparent re-mapping for Fortran array descriptors | |
1177 | which were previously mapped unallocated. */ | |
1178 | for (j = i + 1; j < mapnum; j++) | |
1179 | { | |
1180 | int ptr_kind = get_kind (short_mapkind, kinds, j) & typemask; | |
1181 | if (!GOMP_MAP_ALWAYS_POINTER_P (ptr_kind) | |
1182 | && (!has_nullptr | |
1183 | || !GOMP_MAP_POINTER_P (ptr_kind) | |
1184 | || *(void **) hostaddrs[j] == NULL)) | |
1185 | break; | |
1186 | else if ((uintptr_t) hostaddrs[j] < cur_node.host_start | |
1187 | || ((uintptr_t) hostaddrs[j] + sizeof (void *) | |
1188 | > cur_node.host_end)) | |
1189 | break; | |
1190 | else | |
1191 | { | |
1192 | has_always_ptrset = true; | |
1193 | ++always_to_cnt; | |
1194 | } | |
1195 | } | |
1196 | } | |
1197 | gomp_map_vars_existing (devicep, aq, n, &cur_node, &tgt->list[i], | |
b7e20480 CLT |
1198 | kind & typemask, always_to_cnt > 0, implicit, |
1199 | NULL, refcount_set); | |
972da557 TB |
1200 | i += always_to_cnt; |
1201 | } | |
1df3f842 JJ |
1202 | else |
1203 | { | |
d9a6bd32 | 1204 | tgt->list[i].key = NULL; |
41dbbb37 | 1205 | |
a6163563 JB |
1206 | if ((kind & typemask) == GOMP_MAP_IF_PRESENT) |
1207 | { | |
1208 | /* Not present, hence, skip entry - including its MAP_POINTER, | |
1209 | when existing. */ | |
5bcd470b | 1210 | tgt->list[i].offset = OFFSET_POINTER; |
a6163563 JB |
1211 | if (i + 1 < mapnum |
1212 | && ((typemask & get_kind (short_mapkind, kinds, i + 1)) | |
1213 | == GOMP_MAP_POINTER)) | |
1214 | { | |
1215 | ++i; | |
1216 | tgt->list[i].key = NULL; | |
1217 | tgt->list[i].offset = 0; | |
1218 | } | |
1219 | continue; | |
1220 | } | |
41dbbb37 | 1221 | size_t align = (size_t) 1 << (kind >> rshift); |
1df3f842 JJ |
1222 | not_found_cnt++; |
1223 | if (tgt_align < align) | |
1224 | tgt_align = align; | |
1225 | tgt_size = (tgt_size + align - 1) & ~(align - 1); | |
d88a6951 TS |
1226 | if (!aq |
1227 | && gomp_to_device_kind_p (kind & typemask)) | |
7324369a JJ |
1228 | gomp_coalesce_buf_add (&cbuf, tgt_size, |
1229 | cur_node.host_end - cur_node.host_start); | |
1df3f842 | 1230 | tgt_size += cur_node.host_end - cur_node.host_start; |
41dbbb37 | 1231 | if ((kind & typemask) == GOMP_MAP_TO_PSET) |
1df3f842 JJ |
1232 | { |
1233 | size_t j; | |
972da557 | 1234 | int kind; |
1df3f842 | 1235 | for (j = i + 1; j < mapnum; j++) |
972da557 TB |
1236 | if (!GOMP_MAP_POINTER_P ((kind = (get_kind (short_mapkind, |
1237 | kinds, j)) & typemask)) | |
1238 | && !GOMP_MAP_ALWAYS_POINTER_P (kind)) | |
1df3f842 JJ |
1239 | break; |
1240 | else if ((uintptr_t) hostaddrs[j] < cur_node.host_start | |
1241 | || ((uintptr_t) hostaddrs[j] + sizeof (void *) | |
1242 | > cur_node.host_end)) | |
1243 | break; | |
1244 | else | |
1245 | { | |
d9a6bd32 | 1246 | tgt->list[j].key = NULL; |
1df3f842 JJ |
1247 | i++; |
1248 | } | |
1249 | } | |
1250 | } | |
1251 | } | |
1252 | ||
41dbbb37 TS |
1253 | if (devaddrs) |
1254 | { | |
1255 | if (mapnum != 1) | |
a51df54e IV |
1256 | { |
1257 | gomp_mutex_unlock (&devicep->lock); | |
1258 | gomp_fatal ("unexpected aggregation"); | |
1259 | } | |
41dbbb37 TS |
1260 | tgt->to_free = devaddrs[0]; |
1261 | tgt->tgt_start = (uintptr_t) tgt->to_free; | |
1262 | tgt->tgt_end = tgt->tgt_start + sizes[0]; | |
1263 | } | |
d9a6bd32 | 1264 | else if (not_found_cnt || pragma_kind == GOMP_MAP_VARS_TARGET) |
1df3f842 JJ |
1265 | { |
1266 | /* Allocate tgt_align aligned tgt_size block of memory. */ | |
1267 | /* FIXME: Perhaps change interface to allocate properly aligned | |
1268 | memory. */ | |
1269 | tgt->to_free = devicep->alloc_func (devicep->target_id, | |
1270 | tgt_size + tgt_align - 1); | |
6ce13072 CLT |
1271 | if (!tgt->to_free) |
1272 | { | |
1273 | gomp_mutex_unlock (&devicep->lock); | |
1274 | gomp_fatal ("device memory allocation fail"); | |
1275 | } | |
1276 | ||
1df3f842 JJ |
1277 | tgt->tgt_start = (uintptr_t) tgt->to_free; |
1278 | tgt->tgt_start = (tgt->tgt_start + tgt_align - 1) & ~(tgt_align - 1); | |
1279 | tgt->tgt_end = tgt->tgt_start + tgt_size; | |
7324369a JJ |
1280 | |
1281 | if (cbuf.use_cnt == 1) | |
1282 | cbuf.chunk_cnt--; | |
1283 | if (cbuf.chunk_cnt > 0) | |
1284 | { | |
1285 | cbuf.buf | |
a44c1790 | 1286 | = malloc (cbuf.chunks[cbuf.chunk_cnt - 1].end - cbuf.chunks[0].start); |
7324369a JJ |
1287 | if (cbuf.buf) |
1288 | { | |
1289 | cbuf.tgt = tgt; | |
1290 | cbufp = &cbuf; | |
1291 | } | |
1292 | } | |
1df3f842 JJ |
1293 | } |
1294 | else | |
1295 | { | |
1296 | tgt->to_free = NULL; | |
1297 | tgt->tgt_start = 0; | |
1298 | tgt->tgt_end = 0; | |
1299 | } | |
1300 | ||
1301 | tgt_size = 0; | |
d9a6bd32 | 1302 | if (pragma_kind == GOMP_MAP_VARS_TARGET) |
1df3f842 JJ |
1303 | tgt_size = mapnum * sizeof (void *); |
1304 | ||
1305 | tgt->array = NULL; | |
972da557 | 1306 | if (not_found_cnt || has_firstprivate || has_always_ptrset) |
1df3f842 | 1307 | { |
d9a6bd32 JJ |
1308 | if (not_found_cnt) |
1309 | tgt->array = gomp_malloc (not_found_cnt * sizeof (*tgt->array)); | |
1df3f842 | 1310 | splay_tree_node array = tgt->array; |
5cafae2c | 1311 | size_t j, field_tgt_offset = 0, field_tgt_clear = FIELD_TGT_EMPTY; |
d9a6bd32 | 1312 | uintptr_t field_tgt_base = 0; |
275c736e | 1313 | splay_tree_key field_tgt_structelem_first = NULL; |
1df3f842 JJ |
1314 | |
1315 | for (i = 0; i < mapnum; i++) | |
972da557 TB |
1316 | if (has_always_ptrset |
1317 | && tgt->list[i].key | |
1318 | && (get_kind (short_mapkind, kinds, i) & typemask) | |
1319 | == GOMP_MAP_TO_PSET) | |
1320 | { | |
1321 | splay_tree_key k = tgt->list[i].key; | |
1b9bdd52 | 1322 | bool has_nullptr = false; |
972da557 TB |
1323 | size_t j; |
1324 | for (j = 0; j < k->tgt->list_count; j++) | |
1325 | if (k->tgt->list[j].key == k) | |
1326 | { | |
1327 | has_nullptr = k->tgt->list[j].has_null_ptr_assoc; | |
1328 | break; | |
1329 | } | |
1330 | if (k->tgt->list_count == 0) | |
1331 | has_nullptr = true; | |
1332 | else | |
1333 | assert (j < k->tgt->list_count); | |
1334 | ||
1335 | tgt->list[i].has_null_ptr_assoc = false; | |
1336 | for (j = i + 1; j < mapnum; j++) | |
1337 | { | |
1338 | int ptr_kind = get_kind (short_mapkind, kinds, j) & typemask; | |
1339 | if (!GOMP_MAP_ALWAYS_POINTER_P (ptr_kind) | |
1340 | && (!has_nullptr | |
1341 | || !GOMP_MAP_POINTER_P (ptr_kind) | |
1342 | || *(void **) hostaddrs[j] == NULL)) | |
1343 | break; | |
1344 | else if ((uintptr_t) hostaddrs[j] < k->host_start | |
1345 | || ((uintptr_t) hostaddrs[j] + sizeof (void *) | |
1346 | > k->host_end)) | |
1347 | break; | |
1348 | else | |
1349 | { | |
1350 | if (*(void **) hostaddrs[j] == NULL) | |
1351 | tgt->list[i].has_null_ptr_assoc = true; | |
1352 | tgt->list[j].key = k; | |
1353 | tgt->list[j].copy_from = false; | |
1354 | tgt->list[j].always_copy_from = false; | |
1355 | tgt->list[j].is_attach = false; | |
275c736e | 1356 | gomp_increment_refcount (k, refcount_set); |
972da557 TB |
1357 | gomp_map_pointer (k->tgt, aq, |
1358 | (uintptr_t) *(void **) hostaddrs[j], | |
1359 | k->tgt_offset + ((uintptr_t) hostaddrs[j] | |
1360 | - k->host_start), | |
0ab29cf0 | 1361 | sizes[j], cbufp, false); |
972da557 TB |
1362 | } |
1363 | } | |
1364 | i = j - 1; | |
1365 | } | |
1366 | else if (tgt->list[i].key == NULL) | |
1df3f842 | 1367 | { |
d9a6bd32 | 1368 | int kind = get_kind (short_mapkind, kinds, i); |
b7e20480 | 1369 | bool implicit = get_implicit (short_mapkind, kinds, i); |
1df3f842 JJ |
1370 | if (hostaddrs[i] == NULL) |
1371 | continue; | |
d9a6bd32 JJ |
1372 | switch (kind & typemask) |
1373 | { | |
1374 | size_t align, len, first, last; | |
1375 | splay_tree_key n; | |
1376 | case GOMP_MAP_FIRSTPRIVATE: | |
1377 | align = (size_t) 1 << (kind >> rshift); | |
1378 | tgt_size = (tgt_size + align - 1) & ~(align - 1); | |
1379 | tgt->list[i].offset = tgt_size; | |
1380 | len = sizes[i]; | |
1f4c5b9b | 1381 | gomp_copy_host2dev (devicep, aq, |
6ce13072 | 1382 | (void *) (tgt->tgt_start + tgt_size), |
9c41f5b9 | 1383 | (void *) hostaddrs[i], len, false, cbufp); |
49d1a2f9 TB |
1384 | /* Save device address in hostaddr to permit latter availablity |
1385 | when doing a deep-firstprivate with pointer attach. */ | |
1386 | hostaddrs[i] = (void *) (tgt->tgt_start + tgt_size); | |
d9a6bd32 | 1387 | tgt_size += len; |
49d1a2f9 TB |
1388 | |
1389 | /* If followed by GOMP_MAP_ATTACH, pointer assign this | |
1390 | firstprivate to hostaddrs[i+1], which is assumed to contain a | |
1391 | device address. */ | |
1392 | if (i + 1 < mapnum | |
1393 | && (GOMP_MAP_ATTACH | |
1394 | == (typemask & get_kind (short_mapkind, kinds, i+1)))) | |
1395 | { | |
1396 | uintptr_t target = (uintptr_t) hostaddrs[i]; | |
1397 | void *devptr = *(void**) hostaddrs[i+1] + sizes[i+1]; | |
1398 | gomp_copy_host2dev (devicep, aq, devptr, &target, | |
1399 | sizeof (void *), false, cbufp); | |
1400 | ++i; | |
1401 | } | |
d9a6bd32 JJ |
1402 | continue; |
1403 | case GOMP_MAP_FIRSTPRIVATE_INT: | |
d9a6bd32 JJ |
1404 | case GOMP_MAP_ZERO_LEN_ARRAY_SECTION: |
1405 | continue; | |
d5c23c6c | 1406 | case GOMP_MAP_USE_DEVICE_PTR_IF_PRESENT: |
b3b75e66 TS |
1407 | /* The OpenACC 'host_data' construct only allows 'use_device' |
1408 | "mapping" clauses, so in the first loop, 'not_found_cnt' | |
1409 | must always have been zero, so all OpenACC 'use_device' | |
1410 | clauses have already been handled. (We can only easily test | |
1411 | 'use_device' with 'if_present' clause here.) */ | |
1412 | assert (tgt->list[i].offset == OFFSET_INLINED); | |
1413 | /* Nevertheless, FALLTHRU to the normal handling, to keep the | |
1414 | code conceptually simple, similar to the first loop. */ | |
1415 | case GOMP_MAP_USE_DEVICE_PTR: | |
8860d270 JJ |
1416 | if (tgt->list[i].offset == 0) |
1417 | { | |
1418 | cur_node.host_start = (uintptr_t) hostaddrs[i]; | |
1419 | cur_node.host_end = cur_node.host_start; | |
1420 | n = gomp_map_lookup (mem_map, &cur_node); | |
b3b75e66 TS |
1421 | if (n != NULL) |
1422 | { | |
1423 | cur_node.host_start -= n->host_start; | |
1424 | hostaddrs[i] | |
1425 | = (void *) (n->tgt->tgt_start + n->tgt_offset | |
1426 | + cur_node.host_start); | |
1427 | } | |
1428 | else if ((kind & typemask) == GOMP_MAP_USE_DEVICE_PTR) | |
8860d270 JJ |
1429 | { |
1430 | gomp_mutex_unlock (&devicep->lock); | |
1431 | gomp_fatal ("use_device_ptr pointer wasn't mapped"); | |
1432 | } | |
b3b75e66 TS |
1433 | else if ((kind & typemask) |
1434 | == GOMP_MAP_USE_DEVICE_PTR_IF_PRESENT) | |
1435 | /* If not present, continue using the host address. */ | |
1436 | ; | |
1437 | else | |
1438 | __builtin_unreachable (); | |
1439 | tgt->list[i].offset = OFFSET_INLINED; | |
8860d270 JJ |
1440 | } |
1441 | continue; | |
d9a6bd32 JJ |
1442 | case GOMP_MAP_STRUCT: |
1443 | first = i + 1; | |
1444 | last = i + sizes[i]; | |
1445 | cur_node.host_start = (uintptr_t) hostaddrs[i]; | |
1446 | cur_node.host_end = (uintptr_t) hostaddrs[last] | |
1447 | + sizes[last]; | |
1448 | if (tgt->list[first].key != NULL) | |
1449 | continue; | |
1450 | n = splay_tree_lookup (mem_map, &cur_node); | |
1451 | if (n == NULL) | |
1452 | { | |
1453 | size_t align = (size_t) 1 << (kind >> rshift); | |
1454 | tgt_size -= (uintptr_t) hostaddrs[first] | |
1455 | - (uintptr_t) hostaddrs[i]; | |
1456 | tgt_size = (tgt_size + align - 1) & ~(align - 1); | |
1457 | tgt_size += (uintptr_t) hostaddrs[first] | |
1458 | - (uintptr_t) hostaddrs[i]; | |
1459 | field_tgt_base = (uintptr_t) hostaddrs[first]; | |
1460 | field_tgt_offset = tgt_size; | |
1461 | field_tgt_clear = last; | |
275c736e | 1462 | field_tgt_structelem_first = NULL; |
d9a6bd32 JJ |
1463 | tgt_size += cur_node.host_end |
1464 | - (uintptr_t) hostaddrs[first]; | |
1465 | continue; | |
1466 | } | |
1467 | for (i = first; i <= last; i++) | |
1f4c5b9b | 1468 | gomp_map_fields_existing (tgt, aq, n, first, i, hostaddrs, |
275c736e | 1469 | sizes, kinds, cbufp, refcount_set); |
d9a6bd32 JJ |
1470 | i--; |
1471 | continue; | |
e01d41e5 JJ |
1472 | case GOMP_MAP_ALWAYS_POINTER: |
1473 | cur_node.host_start = (uintptr_t) hostaddrs[i]; | |
1474 | cur_node.host_end = cur_node.host_start + sizeof (void *); | |
1475 | n = splay_tree_lookup (mem_map, &cur_node); | |
1476 | if (n == NULL | |
1477 | || n->host_start > cur_node.host_start | |
1478 | || n->host_end < cur_node.host_end) | |
1479 | { | |
1480 | gomp_mutex_unlock (&devicep->lock); | |
1481 | gomp_fatal ("always pointer not mapped"); | |
1482 | } | |
1483 | if ((get_kind (short_mapkind, kinds, i - 1) & typemask) | |
1484 | != GOMP_MAP_ALWAYS_POINTER) | |
1485 | cur_node.tgt_offset = gomp_map_val (tgt, hostaddrs, i - 1); | |
1486 | if (cur_node.tgt_offset) | |
1487 | cur_node.tgt_offset -= sizes[i]; | |
1f4c5b9b | 1488 | gomp_copy_host2dev (devicep, aq, |
6ce13072 CLT |
1489 | (void *) (n->tgt->tgt_start |
1490 | + n->tgt_offset | |
1491 | + cur_node.host_start | |
1492 | - n->host_start), | |
1493 | (void *) &cur_node.tgt_offset, | |
9c41f5b9 | 1494 | sizeof (void *), true, cbufp); |
e01d41e5 JJ |
1495 | cur_node.tgt_offset = n->tgt->tgt_start + n->tgt_offset |
1496 | + cur_node.host_start - n->host_start; | |
1497 | continue; | |
a6163563 JB |
1498 | case GOMP_MAP_IF_PRESENT: |
1499 | /* Not present - otherwise handled above. Skip over its | |
1500 | MAP_POINTER as well. */ | |
1501 | if (i + 1 < mapnum | |
1502 | && ((typemask & get_kind (short_mapkind, kinds, i + 1)) | |
1503 | == GOMP_MAP_POINTER)) | |
1504 | ++i; | |
1505 | continue; | |
8e7e71ff | 1506 | case GOMP_MAP_ATTACH: |
0ab29cf0 | 1507 | case GOMP_MAP_ATTACH_ZERO_LENGTH_ARRAY_SECTION: |
8e7e71ff JB |
1508 | { |
1509 | cur_node.host_start = (uintptr_t) hostaddrs[i]; | |
1510 | cur_node.host_end = cur_node.host_start + sizeof (void *); | |
1511 | splay_tree_key n = splay_tree_lookup (mem_map, &cur_node); | |
1512 | if (n != NULL) | |
1513 | { | |
1514 | tgt->list[i].key = n; | |
1515 | tgt->list[i].offset = cur_node.host_start - n->host_start; | |
1516 | tgt->list[i].length = n->host_end - n->host_start; | |
1517 | tgt->list[i].copy_from = false; | |
1518 | tgt->list[i].always_copy_from = false; | |
bc4ed079 JB |
1519 | tgt->list[i].is_attach = true; |
1520 | /* OpenACC 'attach'/'detach' doesn't affect | |
1521 | structured/dynamic reference counts ('n->refcount', | |
1522 | 'n->dynamic_refcount'). */ | |
9e628024 | 1523 | |
0ab29cf0 CLT |
1524 | bool zlas |
1525 | = ((kind & typemask) | |
1526 | == GOMP_MAP_ATTACH_ZERO_LENGTH_ARRAY_SECTION); | |
9e628024 CLT |
1527 | gomp_attach_pointer (devicep, aq, mem_map, n, |
1528 | (uintptr_t) hostaddrs[i], sizes[i], | |
0ab29cf0 | 1529 | cbufp, zlas); |
8e7e71ff | 1530 | } |
9e628024 | 1531 | else if ((pragma_kind & GOMP_MAP_VARS_OPENACC) != 0) |
8e7e71ff JB |
1532 | { |
1533 | gomp_mutex_unlock (&devicep->lock); | |
1534 | gomp_fatal ("outer struct not mapped for attach"); | |
1535 | } | |
8e7e71ff JB |
1536 | continue; |
1537 | } | |
d9a6bd32 JJ |
1538 | default: |
1539 | break; | |
1540 | } | |
1df3f842 JJ |
1541 | splay_tree_key k = &array->key; |
1542 | k->host_start = (uintptr_t) hostaddrs[i]; | |
41dbbb37 | 1543 | if (!GOMP_MAP_POINTER_P (kind & typemask)) |
1df3f842 JJ |
1544 | k->host_end = k->host_start + sizes[i]; |
1545 | else | |
1546 | k->host_end = k->host_start + sizeof (void *); | |
a51df54e | 1547 | splay_tree_key n = splay_tree_lookup (mem_map, k); |
4a38b02b | 1548 | if (n && n->refcount != REFCOUNT_LINK) |
1f4c5b9b | 1549 | gomp_map_vars_existing (devicep, aq, n, k, &tgt->list[i], |
b7e20480 | 1550 | kind & typemask, false, implicit, cbufp, |
275c736e | 1551 | refcount_set); |
1df3f842 JJ |
1552 | else |
1553 | { | |
2a656a93 | 1554 | k->aux = NULL; |
4a38b02b IV |
1555 | if (n && n->refcount == REFCOUNT_LINK) |
1556 | { | |
1557 | /* Replace target address of the pointer with target address | |
1558 | of mapped object in the splay tree. */ | |
1559 | splay_tree_remove (mem_map, n); | |
2a656a93 JB |
1560 | k->aux |
1561 | = gomp_malloc_cleared (sizeof (struct splay_tree_aux)); | |
1562 | k->aux->link_key = n; | |
4a38b02b | 1563 | } |
41dbbb37 | 1564 | size_t align = (size_t) 1 << (kind >> rshift); |
d9a6bd32 | 1565 | tgt->list[i].key = k; |
1df3f842 | 1566 | k->tgt = tgt; |
275c736e CLT |
1567 | k->refcount = 0; |
1568 | k->dynamic_refcount = 0; | |
6c7e076b | 1569 | if (field_tgt_clear != FIELD_TGT_EMPTY) |
d9a6bd32 JJ |
1570 | { |
1571 | k->tgt_offset = k->host_start - field_tgt_base | |
1572 | + field_tgt_offset; | |
275c736e CLT |
1573 | if (openmp_p) |
1574 | { | |
1575 | k->refcount = REFCOUNT_STRUCTELEM; | |
1576 | if (field_tgt_structelem_first == NULL) | |
1577 | { | |
1578 | /* Set to first structure element of sequence. */ | |
1579 | k->refcount |= REFCOUNT_STRUCTELEM_FLAG_FIRST; | |
1580 | field_tgt_structelem_first = k; | |
1581 | } | |
1582 | else | |
1583 | /* Point to refcount of leading element, but do not | |
1584 | increment again. */ | |
1585 | k->structelem_refcount_ptr | |
1586 | = &field_tgt_structelem_first->structelem_refcount; | |
1587 | ||
1588 | if (i == field_tgt_clear) | |
1589 | { | |
1590 | k->refcount |= REFCOUNT_STRUCTELEM_FLAG_LAST; | |
1591 | field_tgt_structelem_first = NULL; | |
1592 | } | |
1593 | } | |
d9a6bd32 | 1594 | if (i == field_tgt_clear) |
6c7e076b | 1595 | field_tgt_clear = FIELD_TGT_EMPTY; |
d9a6bd32 JJ |
1596 | } |
1597 | else | |
1598 | { | |
1599 | tgt_size = (tgt_size + align - 1) & ~(align - 1); | |
1600 | k->tgt_offset = tgt_size; | |
1601 | tgt_size += k->host_end - k->host_start; | |
1602 | } | |
275c736e CLT |
1603 | /* First increment, from 0 to 1. gomp_increment_refcount |
1604 | encapsulates the different increment cases, so use this | |
1605 | instead of directly setting 1 during initialization. */ | |
1606 | gomp_increment_refcount (k, refcount_set); | |
1607 | ||
d9a6bd32 JJ |
1608 | tgt->list[i].copy_from = GOMP_MAP_COPY_FROM_P (kind & typemask); |
1609 | tgt->list[i].always_copy_from | |
1610 | = GOMP_MAP_ALWAYS_FROM_P (kind & typemask); | |
bc4ed079 | 1611 | tgt->list[i].is_attach = false; |
d9a6bd32 JJ |
1612 | tgt->list[i].offset = 0; |
1613 | tgt->list[i].length = k->host_end - k->host_start; | |
1df3f842 JJ |
1614 | tgt->refcount++; |
1615 | array->left = NULL; | |
1616 | array->right = NULL; | |
a51df54e | 1617 | splay_tree_insert (mem_map, array); |
41dbbb37 | 1618 | switch (kind & typemask) |
1df3f842 | 1619 | { |
41dbbb37 TS |
1620 | case GOMP_MAP_ALLOC: |
1621 | case GOMP_MAP_FROM: | |
1622 | case GOMP_MAP_FORCE_ALLOC: | |
1623 | case GOMP_MAP_FORCE_FROM: | |
d9a6bd32 | 1624 | case GOMP_MAP_ALWAYS_FROM: |
1df3f842 | 1625 | break; |
41dbbb37 TS |
1626 | case GOMP_MAP_TO: |
1627 | case GOMP_MAP_TOFROM: | |
1628 | case GOMP_MAP_FORCE_TO: | |
1629 | case GOMP_MAP_FORCE_TOFROM: | |
d9a6bd32 JJ |
1630 | case GOMP_MAP_ALWAYS_TO: |
1631 | case GOMP_MAP_ALWAYS_TOFROM: | |
1f4c5b9b | 1632 | gomp_copy_host2dev (devicep, aq, |
6ce13072 CLT |
1633 | (void *) (tgt->tgt_start |
1634 | + k->tgt_offset), | |
1635 | (void *) k->host_start, | |
9c41f5b9 JB |
1636 | k->host_end - k->host_start, |
1637 | false, cbufp); | |
1df3f842 | 1638 | break; |
41dbbb37 | 1639 | case GOMP_MAP_POINTER: |
0ab29cf0 CLT |
1640 | case GOMP_MAP_POINTER_TO_ZERO_LENGTH_ARRAY_SECTION: |
1641 | gomp_map_pointer | |
1642 | (tgt, aq, (uintptr_t) *(void **) k->host_start, | |
1643 | k->tgt_offset, sizes[i], cbufp, | |
1644 | ((kind & typemask) | |
1645 | == GOMP_MAP_POINTER_TO_ZERO_LENGTH_ARRAY_SECTION)); | |
1df3f842 | 1646 | break; |
41dbbb37 | 1647 | case GOMP_MAP_TO_PSET: |
1f4c5b9b | 1648 | gomp_copy_host2dev (devicep, aq, |
6ce13072 CLT |
1649 | (void *) (tgt->tgt_start |
1650 | + k->tgt_offset), | |
1651 | (void *) k->host_start, | |
9c41f5b9 JB |
1652 | k->host_end - k->host_start, |
1653 | false, cbufp); | |
972da557 | 1654 | tgt->list[i].has_null_ptr_assoc = false; |
41dbbb37 | 1655 | |
1df3f842 | 1656 | for (j = i + 1; j < mapnum; j++) |
972da557 TB |
1657 | { |
1658 | int ptr_kind = (get_kind (short_mapkind, kinds, j) | |
1659 | & typemask); | |
1660 | if (!GOMP_MAP_POINTER_P (ptr_kind) | |
1661 | && !GOMP_MAP_ALWAYS_POINTER_P (ptr_kind)) | |
1662 | break; | |
1663 | else if ((uintptr_t) hostaddrs[j] < k->host_start | |
1664 | || ((uintptr_t) hostaddrs[j] + sizeof (void *) | |
1665 | > k->host_end)) | |
1666 | break; | |
1667 | else | |
1668 | { | |
1669 | tgt->list[j].key = k; | |
1670 | tgt->list[j].copy_from = false; | |
1671 | tgt->list[j].always_copy_from = false; | |
1672 | tgt->list[j].is_attach = false; | |
1673 | tgt->list[i].has_null_ptr_assoc |= !(*(void **) hostaddrs[j]); | |
275c736e CLT |
1674 | /* For OpenMP, the use of refcount_sets causes |
1675 | errors if we set k->refcount = 1 above but also | |
1676 | increment it again here, for decrementing will | |
1677 | not properly match, since we decrement only once | |
1678 | for each key's refcount. Therefore avoid this | |
1679 | increment for OpenMP constructs. */ | |
1680 | if (!openmp_p) | |
1681 | gomp_increment_refcount (k, refcount_set); | |
972da557 TB |
1682 | gomp_map_pointer (tgt, aq, |
1683 | (uintptr_t) *(void **) hostaddrs[j], | |
1684 | k->tgt_offset | |
1685 | + ((uintptr_t) hostaddrs[j] | |
1686 | - k->host_start), | |
0ab29cf0 | 1687 | sizes[j], cbufp, false); |
972da557 | 1688 | } |
ea4b23d9 | 1689 | } |
972da557 | 1690 | i = j - 1; |
41dbbb37 TS |
1691 | break; |
1692 | case GOMP_MAP_FORCE_PRESENT: | |
1693 | { | |
1694 | /* We already looked up the memory region above and it | |
1695 | was missing. */ | |
1696 | size_t size = k->host_end - k->host_start; | |
a51df54e | 1697 | gomp_mutex_unlock (&devicep->lock); |
01c0b3b0 KT |
1698 | #ifdef HAVE_INTTYPES_H |
1699 | gomp_fatal ("present clause: !acc_is_present (%p, " | |
1700 | "%"PRIu64" (0x%"PRIx64"))", | |
1701 | (void *) k->host_start, | |
1702 | (uint64_t) size, (uint64_t) size); | |
1703 | #else | |
41dbbb37 | 1704 | gomp_fatal ("present clause: !acc_is_present (%p, " |
01c0b3b0 KT |
1705 | "%lu (0x%lx))", (void *) k->host_start, |
1706 | (unsigned long) size, (unsigned long) size); | |
1707 | #endif | |
41dbbb37 TS |
1708 | } |
1709 | break; | |
1710 | case GOMP_MAP_FORCE_DEVICEPTR: | |
1711 | assert (k->host_end - k->host_start == sizeof (void *)); | |
1f4c5b9b | 1712 | gomp_copy_host2dev (devicep, aq, |
6ce13072 CLT |
1713 | (void *) (tgt->tgt_start |
1714 | + k->tgt_offset), | |
1715 | (void *) k->host_start, | |
9c41f5b9 | 1716 | sizeof (void *), false, cbufp); |
41dbbb37 TS |
1717 | break; |
1718 | default: | |
a51df54e | 1719 | gomp_mutex_unlock (&devicep->lock); |
41dbbb37 TS |
1720 | gomp_fatal ("%s: unhandled kind 0x%.2x", __FUNCTION__, |
1721 | kind); | |
1df3f842 | 1722 | } |
4a38b02b | 1723 | |
2a656a93 | 1724 | if (k->aux && k->aux->link_key) |
4a38b02b IV |
1725 | { |
1726 | /* Set link pointer on target to the device address of the | |
1727 | mapped object. */ | |
1728 | void *tgt_addr = (void *) (tgt->tgt_start + k->tgt_offset); | |
84ca08d2 TS |
1729 | /* We intentionally do not use coalescing here, as it's not |
1730 | data allocated by the current call to this function. */ | |
1f4c5b9b | 1731 | gomp_copy_host2dev (devicep, aq, (void *) n->tgt_offset, |
9c41f5b9 | 1732 | &tgt_addr, sizeof (void *), true, NULL); |
4a38b02b | 1733 | } |
1df3f842 JJ |
1734 | array++; |
1735 | } | |
1736 | } | |
1737 | } | |
41dbbb37 | 1738 | |
d9a6bd32 | 1739 | if (pragma_kind == GOMP_MAP_VARS_TARGET) |
1df3f842 JJ |
1740 | { |
1741 | for (i = 0; i < mapnum; i++) | |
1742 | { | |
e01d41e5 | 1743 | cur_node.tgt_offset = gomp_map_val (tgt, hostaddrs, i); |
1f4c5b9b | 1744 | gomp_copy_host2dev (devicep, aq, |
6ce13072 | 1745 | (void *) (tgt->tgt_start + i * sizeof (void *)), |
7324369a | 1746 | (void *) &cur_node.tgt_offset, sizeof (void *), |
9c41f5b9 | 1747 | true, cbufp); |
1df3f842 JJ |
1748 | } |
1749 | } | |
1750 | ||
7324369a JJ |
1751 | if (cbufp) |
1752 | { | |
d88a6951 TS |
1753 | /* See 'gomp_coalesce_buf_add'. */ |
1754 | assert (!aq); | |
1755 | ||
7324369a JJ |
1756 | long c = 0; |
1757 | for (c = 0; c < cbuf.chunk_cnt; ++c) | |
1f4c5b9b | 1758 | gomp_copy_host2dev (devicep, aq, |
a44c1790 TS |
1759 | (void *) (tgt->tgt_start + cbuf.chunks[c].start), |
1760 | (char *) cbuf.buf + (cbuf.chunks[c].start | |
1761 | - cbuf.chunks[0].start), | |
9c41f5b9 JB |
1762 | cbuf.chunks[c].end - cbuf.chunks[c].start, |
1763 | true, NULL); | |
7324369a | 1764 | free (cbuf.buf); |
a44c1790 TS |
1765 | cbuf.buf = NULL; |
1766 | cbufp = NULL; | |
7324369a JJ |
1767 | } |
1768 | ||
d9a6bd32 JJ |
1769 | /* If the variable from "omp target enter data" map-list was already mapped, |
1770 | tgt is not needed. Otherwise tgt will be freed by gomp_unmap_vars or | |
1771 | gomp_exit_data. */ | |
9e628024 | 1772 | if ((pragma_kind & GOMP_MAP_VARS_ENTER_DATA) && tgt->refcount == 0) |
6f5b4b64 | 1773 | { |
d9a6bd32 JJ |
1774 | free (tgt); |
1775 | tgt = NULL; | |
1776 | } | |
1777 | ||
a51df54e | 1778 | gomp_mutex_unlock (&devicep->lock); |
1df3f842 JJ |
1779 | return tgt; |
1780 | } | |
1781 | ||
275c736e | 1782 | static struct target_mem_desc * |
1f4c5b9b CLT |
1783 | gomp_map_vars (struct gomp_device_descr *devicep, size_t mapnum, |
1784 | void **hostaddrs, void **devaddrs, size_t *sizes, void *kinds, | |
275c736e CLT |
1785 | bool short_mapkind, htab_t *refcount_set, |
1786 | enum gomp_map_vars_kind pragma_kind) | |
1f4c5b9b | 1787 | { |
275c736e CLT |
1788 | /* This management of a local refcount_set is for convenience of callers |
1789 | who do not share a refcount_set over multiple map/unmap uses. */ | |
1790 | htab_t local_refcount_set = NULL; | |
1791 | if (refcount_set == NULL) | |
1792 | { | |
1793 | local_refcount_set = htab_create (mapnum); | |
1794 | refcount_set = &local_refcount_set; | |
1795 | } | |
1796 | ||
1797 | struct target_mem_desc *tgt; | |
1798 | tgt = gomp_map_vars_internal (devicep, NULL, mapnum, hostaddrs, devaddrs, | |
1799 | sizes, kinds, short_mapkind, refcount_set, | |
1800 | pragma_kind); | |
1801 | if (local_refcount_set) | |
1802 | htab_free (local_refcount_set); | |
1803 | ||
1804 | return tgt; | |
1f4c5b9b CLT |
1805 | } |
1806 | ||
1807 | attribute_hidden struct target_mem_desc * | |
275c736e CLT |
1808 | goacc_map_vars (struct gomp_device_descr *devicep, |
1809 | struct goacc_asyncqueue *aq, size_t mapnum, | |
1810 | void **hostaddrs, void **devaddrs, size_t *sizes, | |
1811 | void *kinds, bool short_mapkind, | |
1812 | enum gomp_map_vars_kind pragma_kind) | |
1f4c5b9b CLT |
1813 | { |
1814 | return gomp_map_vars_internal (devicep, aq, mapnum, hostaddrs, devaddrs, | |
275c736e CLT |
1815 | sizes, kinds, short_mapkind, NULL, |
1816 | GOMP_MAP_VARS_OPENACC | pragma_kind); | |
1f4c5b9b CLT |
1817 | } |
1818 | ||
6278b549 | 1819 | static void |
1df3f842 JJ |
1820 | gomp_unmap_tgt (struct target_mem_desc *tgt) |
1821 | { | |
1822 | /* Deallocate on target the tgt->tgt_start .. tgt->tgt_end region. */ | |
1823 | if (tgt->tgt_end) | |
6ce13072 | 1824 | gomp_free_device_memory (tgt->device_descr, tgt->to_free); |
1df3f842 JJ |
1825 | |
1826 | free (tgt->array); | |
1827 | free (tgt); | |
1828 | } | |
1829 | ||
1cbd94e8 JB |
1830 | static bool |
1831 | gomp_unref_tgt (void *ptr) | |
829c6349 CLT |
1832 | { |
1833 | bool is_tgt_unmapped = false; | |
1cbd94e8 JB |
1834 | |
1835 | struct target_mem_desc *tgt = (struct target_mem_desc *) ptr; | |
1836 | ||
1837 | if (tgt->refcount > 1) | |
1838 | tgt->refcount--; | |
829c6349 CLT |
1839 | else |
1840 | { | |
1cbd94e8 | 1841 | gomp_unmap_tgt (tgt); |
829c6349 | 1842 | is_tgt_unmapped = true; |
829c6349 | 1843 | } |
1cbd94e8 | 1844 | |
829c6349 CLT |
1845 | return is_tgt_unmapped; |
1846 | } | |
1847 | ||
1f4c5b9b | 1848 | static void |
1cbd94e8 | 1849 | gomp_unref_tgt_void (void *ptr) |
1f4c5b9b | 1850 | { |
1cbd94e8 JB |
1851 | (void) gomp_unref_tgt (ptr); |
1852 | } | |
1f4c5b9b | 1853 | |
275c736e CLT |
1854 | static void |
1855 | gomp_remove_splay_tree_key (splay_tree sp, splay_tree_key k) | |
1cbd94e8 | 1856 | { |
275c736e | 1857 | splay_tree_remove (sp, k); |
2a656a93 JB |
1858 | if (k->aux) |
1859 | { | |
1860 | if (k->aux->link_key) | |
275c736e | 1861 | splay_tree_insert (sp, (splay_tree_node) k->aux->link_key); |
5d5be7bf JB |
1862 | if (k->aux->attach_count) |
1863 | free (k->aux->attach_count); | |
2a656a93 JB |
1864 | free (k->aux); |
1865 | k->aux = NULL; | |
1866 | } | |
275c736e CLT |
1867 | } |
1868 | ||
1869 | static inline __attribute__((always_inline)) bool | |
1870 | gomp_remove_var_internal (struct gomp_device_descr *devicep, splay_tree_key k, | |
1871 | struct goacc_asyncqueue *aq) | |
1872 | { | |
1873 | bool is_tgt_unmapped = false; | |
1874 | ||
1875 | if (REFCOUNT_STRUCTELEM_P (k->refcount)) | |
1876 | { | |
1877 | if (REFCOUNT_STRUCTELEM_FIRST_P (k->refcount) == false) | |
1878 | /* Infer the splay_tree_key of the first structelem key using the | |
1879 | pointer to the first structleme_refcount. */ | |
1880 | k = (splay_tree_key) ((char *) k->structelem_refcount_ptr | |
1881 | - offsetof (struct splay_tree_key_s, | |
1882 | structelem_refcount)); | |
1883 | assert (REFCOUNT_STRUCTELEM_FIRST_P (k->refcount)); | |
1884 | ||
1885 | /* The array created by gomp_map_vars is an array of splay_tree_nodes, | |
1886 | with the splay_tree_keys embedded inside. */ | |
1887 | splay_tree_node node = | |
1888 | (splay_tree_node) ((char *) k | |
1889 | - offsetof (struct splay_tree_node_s, key)); | |
1890 | while (true) | |
1891 | { | |
1892 | /* Starting from the _FIRST key, and continue for all following | |
1893 | sibling keys. */ | |
1894 | gomp_remove_splay_tree_key (&devicep->mem_map, k); | |
1895 | if (REFCOUNT_STRUCTELEM_LAST_P (k->refcount)) | |
1896 | break; | |
1897 | else | |
1898 | k = &(++node)->key; | |
1899 | } | |
1900 | } | |
1901 | else | |
1902 | gomp_remove_splay_tree_key (&devicep->mem_map, k); | |
1903 | ||
1cbd94e8 JB |
1904 | if (aq) |
1905 | devicep->openacc.async.queue_callback_func (aq, gomp_unref_tgt_void, | |
1906 | (void *) k->tgt); | |
1f4c5b9b | 1907 | else |
1cbd94e8 JB |
1908 | is_tgt_unmapped = gomp_unref_tgt ((void *) k->tgt); |
1909 | return is_tgt_unmapped; | |
1910 | } | |
1911 | ||
1912 | attribute_hidden bool | |
1913 | gomp_remove_var (struct gomp_device_descr *devicep, splay_tree_key k) | |
1914 | { | |
1915 | return gomp_remove_var_internal (devicep, k, NULL); | |
1916 | } | |
1917 | ||
1918 | /* Remove a variable asynchronously. This actually removes the variable | |
1919 | mapping immediately, but retains the linked target_mem_desc until the | |
1920 | asynchronous operation has completed (as it may still refer to target | |
1921 | memory). The device lock must be held before entry, and remains locked on | |
1922 | exit. */ | |
1923 | ||
1924 | attribute_hidden void | |
1925 | gomp_remove_var_async (struct gomp_device_descr *devicep, splay_tree_key k, | |
1926 | struct goacc_asyncqueue *aq) | |
1927 | { | |
1928 | (void) gomp_remove_var_internal (devicep, k, aq); | |
1f4c5b9b CLT |
1929 | } |
1930 | ||
41dbbb37 TS |
1931 | /* Unmap variables described by TGT. If DO_COPYFROM is true, copy relevant |
1932 | variables back from device to host: if it is false, it is assumed that this | |
b4557008 | 1933 | has been done already. */ |
41dbbb37 | 1934 | |
1f4c5b9b CLT |
1935 | static inline __attribute__((always_inline)) void |
1936 | gomp_unmap_vars_internal (struct target_mem_desc *tgt, bool do_copyfrom, | |
275c736e | 1937 | htab_t *refcount_set, struct goacc_asyncqueue *aq) |
1df3f842 JJ |
1938 | { |
1939 | struct gomp_device_descr *devicep = tgt->device_descr; | |
1940 | ||
1941 | if (tgt->list_count == 0) | |
1942 | { | |
1943 | free (tgt); | |
1944 | return; | |
1945 | } | |
1946 | ||
a51df54e | 1947 | gomp_mutex_lock (&devicep->lock); |
d84ffc0a IV |
1948 | if (devicep->state == GOMP_DEVICE_FINALIZED) |
1949 | { | |
1950 | gomp_mutex_unlock (&devicep->lock); | |
1951 | free (tgt->array); | |
1952 | free (tgt); | |
1953 | return; | |
1954 | } | |
41dbbb37 | 1955 | |
1df3f842 | 1956 | size_t i; |
8e7e71ff JB |
1957 | |
1958 | /* We must perform detachments before any copies back to the host. */ | |
1959 | for (i = 0; i < tgt->list_count; i++) | |
1960 | { | |
1961 | splay_tree_key k = tgt->list[i].key; | |
1962 | ||
bc4ed079 | 1963 | if (k != NULL && tgt->list[i].is_attach) |
8e7e71ff JB |
1964 | gomp_detach_pointer (devicep, aq, k, tgt->list[i].key->host_start |
1965 | + tgt->list[i].offset, | |
25bce75c | 1966 | false, NULL); |
8e7e71ff JB |
1967 | } |
1968 | ||
1df3f842 | 1969 | for (i = 0; i < tgt->list_count; i++) |
d9a6bd32 JJ |
1970 | { |
1971 | splay_tree_key k = tgt->list[i].key; | |
1972 | if (k == NULL) | |
1973 | continue; | |
1974 | ||
bc4ed079 JB |
1975 | /* OpenACC 'attach'/'detach' doesn't affect structured/dynamic reference |
1976 | counts ('n->refcount', 'n->dynamic_refcount'). */ | |
1977 | if (tgt->list[i].is_attach) | |
1978 | continue; | |
1979 | ||
275c736e CLT |
1980 | bool do_copy, do_remove; |
1981 | gomp_decrement_refcount (k, refcount_set, false, &do_copy, &do_remove); | |
d9a6bd32 | 1982 | |
275c736e | 1983 | if ((do_copy && do_copyfrom && tgt->list[i].copy_from) |
d9a6bd32 | 1984 | || tgt->list[i].always_copy_from) |
1f4c5b9b | 1985 | gomp_copy_dev2host (devicep, aq, |
6ce13072 CLT |
1986 | (void *) (k->host_start + tgt->list[i].offset), |
1987 | (void *) (k->tgt->tgt_start + k->tgt_offset | |
1988 | + tgt->list[i].offset), | |
1989 | tgt->list[i].length); | |
275c736e | 1990 | if (do_remove) |
83d1d065 TS |
1991 | { |
1992 | struct target_mem_desc *k_tgt = k->tgt; | |
1993 | bool is_tgt_unmapped = gomp_remove_var (devicep, k); | |
1994 | /* It would be bad if TGT got unmapped while we're still iterating | |
1995 | over its LIST_COUNT, and also expect to use it in the following | |
1996 | code. */ | |
1997 | assert (!is_tgt_unmapped | |
1998 | || k_tgt != tgt); | |
1999 | } | |
d9a6bd32 | 2000 | } |
1df3f842 | 2001 | |
1f4c5b9b | 2002 | if (aq) |
1cbd94e8 | 2003 | devicep->openacc.async.queue_callback_func (aq, gomp_unref_tgt_void, |
1f4c5b9b | 2004 | (void *) tgt); |
1df3f842 | 2005 | else |
1f4c5b9b | 2006 | gomp_unref_tgt ((void *) tgt); |
41dbbb37 | 2007 | |
a51df54e | 2008 | gomp_mutex_unlock (&devicep->lock); |
1df3f842 JJ |
2009 | } |
2010 | ||
275c736e CLT |
2011 | static void |
2012 | gomp_unmap_vars (struct target_mem_desc *tgt, bool do_copyfrom, | |
2013 | htab_t *refcount_set) | |
1f4c5b9b | 2014 | { |
275c736e CLT |
2015 | /* This management of a local refcount_set is for convenience of callers |
2016 | who do not share a refcount_set over multiple map/unmap uses. */ | |
2017 | htab_t local_refcount_set = NULL; | |
2018 | if (refcount_set == NULL) | |
2019 | { | |
2020 | local_refcount_set = htab_create (tgt->list_count); | |
2021 | refcount_set = &local_refcount_set; | |
2022 | } | |
2023 | ||
2024 | gomp_unmap_vars_internal (tgt, do_copyfrom, refcount_set, NULL); | |
2025 | ||
2026 | if (local_refcount_set) | |
2027 | htab_free (local_refcount_set); | |
1f4c5b9b CLT |
2028 | } |
2029 | ||
2030 | attribute_hidden void | |
275c736e CLT |
2031 | goacc_unmap_vars (struct target_mem_desc *tgt, bool do_copyfrom, |
2032 | struct goacc_asyncqueue *aq) | |
1f4c5b9b | 2033 | { |
275c736e | 2034 | gomp_unmap_vars_internal (tgt, do_copyfrom, NULL, aq); |
1f4c5b9b CLT |
2035 | } |
2036 | ||
1df3f842 | 2037 | static void |
a51df54e | 2038 | gomp_update (struct gomp_device_descr *devicep, size_t mapnum, void **hostaddrs, |
d9a6bd32 | 2039 | size_t *sizes, void *kinds, bool short_mapkind) |
1df3f842 JJ |
2040 | { |
2041 | size_t i; | |
2042 | struct splay_tree_key_s cur_node; | |
d9a6bd32 | 2043 | const int typemask = short_mapkind ? 0xff : 0x7; |
1df3f842 JJ |
2044 | |
2045 | if (!devicep) | |
2046 | return; | |
2047 | ||
2048 | if (mapnum == 0) | |
2049 | return; | |
2050 | ||
a51df54e | 2051 | gomp_mutex_lock (&devicep->lock); |
d84ffc0a IV |
2052 | if (devicep->state == GOMP_DEVICE_FINALIZED) |
2053 | { | |
2054 | gomp_mutex_unlock (&devicep->lock); | |
2055 | return; | |
2056 | } | |
2057 | ||
1df3f842 JJ |
2058 | for (i = 0; i < mapnum; i++) |
2059 | if (sizes[i]) | |
2060 | { | |
2061 | cur_node.host_start = (uintptr_t) hostaddrs[i]; | |
2062 | cur_node.host_end = cur_node.host_start + sizes[i]; | |
a51df54e | 2063 | splay_tree_key n = splay_tree_lookup (&devicep->mem_map, &cur_node); |
1df3f842 JJ |
2064 | if (n) |
2065 | { | |
d9a6bd32 | 2066 | int kind = get_kind (short_mapkind, kinds, i); |
1df3f842 JJ |
2067 | if (n->host_start > cur_node.host_start |
2068 | || n->host_end < cur_node.host_end) | |
a51df54e IV |
2069 | { |
2070 | gomp_mutex_unlock (&devicep->lock); | |
2071 | gomp_fatal ("Trying to update [%p..%p) object when " | |
2072 | "only [%p..%p) is mapped", | |
2073 | (void *) cur_node.host_start, | |
2074 | (void *) cur_node.host_end, | |
2075 | (void *) n->host_start, | |
2076 | (void *) n->host_end); | |
2077 | } | |
6ce13072 | 2078 | |
6c039937 CLT |
2079 | if (n->aux && n->aux->attach_count) |
2080 | { | |
2081 | uintptr_t addr = cur_node.host_start; | |
2082 | while (addr < cur_node.host_end) | |
2083 | { | |
2084 | /* We have to be careful not to overwrite still attached | |
2085 | pointers during host<->device updates. */ | |
2086 | size_t i = (addr - cur_node.host_start) / sizeof (void *); | |
2087 | if (n->aux->attach_count[i] == 0) | |
2088 | { | |
2089 | void *devaddr = (void *) (n->tgt->tgt_start | |
2090 | + n->tgt_offset | |
2091 | + addr - n->host_start); | |
2092 | if (GOMP_MAP_COPY_TO_P (kind & typemask)) | |
2093 | gomp_copy_host2dev (devicep, NULL, | |
2094 | devaddr, (void *) addr, | |
2095 | sizeof (void *), false, NULL); | |
2096 | if (GOMP_MAP_COPY_FROM_P (kind & typemask)) | |
2097 | gomp_copy_dev2host (devicep, NULL, | |
2098 | (void *) addr, devaddr, | |
2099 | sizeof (void *)); | |
2100 | } | |
2101 | addr += sizeof (void *); | |
2102 | } | |
2103 | } | |
2104 | else | |
2105 | { | |
2106 | void *hostaddr = (void *) cur_node.host_start; | |
2107 | void *devaddr = (void *) (n->tgt->tgt_start + n->tgt_offset | |
2108 | + cur_node.host_start | |
2109 | - n->host_start); | |
2110 | size_t size = cur_node.host_end - cur_node.host_start; | |
2111 | ||
2112 | if (GOMP_MAP_COPY_TO_P (kind & typemask)) | |
2113 | gomp_copy_host2dev (devicep, NULL, devaddr, hostaddr, size, | |
2114 | false, NULL); | |
2115 | if (GOMP_MAP_COPY_FROM_P (kind & typemask)) | |
2116 | gomp_copy_dev2host (devicep, NULL, hostaddr, devaddr, size); | |
2117 | } | |
1df3f842 | 2118 | } |
1df3f842 | 2119 | } |
a51df54e IV |
2120 | gomp_mutex_unlock (&devicep->lock); |
2121 | } | |
2122 | ||
9f2fca56 MV |
2123 | static struct gomp_offload_icv_list * |
2124 | gomp_get_offload_icv_item (int dev_num) | |
2125 | { | |
2126 | struct gomp_offload_icv_list *l = gomp_offload_icv_list; | |
2127 | while (l != NULL && l->device_num != dev_num) | |
2128 | l = l->next; | |
2129 | ||
2130 | return l; | |
2131 | } | |
2132 | ||
2133 | /* Helper function for 'gomp_load_image_to_device'. Returns the ICV values | |
2134 | depending on the device num and the variable hierarchy | |
2135 | (_DEV_42, _DEV, _ALL). If no ICV was initially configured for the given | |
2136 | device and thus no item with that device number is contained in | |
2137 | gomp_offload_icv_list, then a new item is created and added to the list. */ | |
2138 | ||
2139 | static struct gomp_offload_icvs * | |
2140 | get_gomp_offload_icvs (int dev_num) | |
2141 | { | |
2142 | struct gomp_icv_list *dev | |
2143 | = gomp_get_initial_icv_item (GOMP_DEVICE_NUM_FOR_DEV); | |
2144 | struct gomp_icv_list *all | |
2145 | = gomp_get_initial_icv_item (GOMP_DEVICE_NUM_FOR_ALL); | |
2146 | struct gomp_icv_list *dev_x = gomp_get_initial_icv_item (dev_num); | |
2147 | struct gomp_offload_icv_list *offload_icvs | |
2148 | = gomp_get_offload_icv_item (dev_num); | |
2149 | ||
2150 | if (offload_icvs != NULL) | |
2151 | return &offload_icvs->icvs; | |
2152 | ||
2153 | struct gomp_offload_icv_list *new | |
2154 | = (struct gomp_offload_icv_list *) gomp_malloc (sizeof (struct gomp_offload_icv_list)); | |
2155 | ||
2156 | new->device_num = dev_num; | |
2157 | new->icvs.device_num = dev_num; | |
2158 | new->next = gomp_offload_icv_list; | |
2159 | ||
2160 | if (dev_x != NULL && gomp_get_icv_flag (dev_x->flags, GOMP_ICV_NTEAMS)) | |
2161 | new->icvs.nteams = dev_x->icvs.nteams_var; | |
2162 | else if (dev != NULL && gomp_get_icv_flag (dev->flags, GOMP_ICV_NTEAMS)) | |
2163 | new->icvs.nteams = dev->icvs.nteams_var; | |
2164 | else if (all != NULL && gomp_get_icv_flag (all->flags, GOMP_ICV_NTEAMS)) | |
2165 | new->icvs.nteams = all->icvs.nteams_var; | |
2166 | else | |
2167 | new->icvs.nteams = gomp_default_icv_values.nteams_var; | |
2168 | ||
81476bc4 MV |
2169 | if (dev_x != NULL |
2170 | && gomp_get_icv_flag (dev_x->flags, GOMP_ICV_TEAMS_THREAD_LIMIT)) | |
2171 | new->icvs.teams_thread_limit = dev_x->icvs.teams_thread_limit_var; | |
2172 | else if (dev != NULL | |
2173 | && gomp_get_icv_flag (dev->flags, GOMP_ICV_TEAMS_THREAD_LIMIT)) | |
2174 | new->icvs.teams_thread_limit = dev->icvs.teams_thread_limit_var; | |
2175 | else if (all != NULL | |
2176 | && gomp_get_icv_flag (all->flags, GOMP_ICV_TEAMS_THREAD_LIMIT)) | |
2177 | new->icvs.teams_thread_limit = all->icvs.teams_thread_limit_var; | |
2178 | else | |
2179 | new->icvs.teams_thread_limit | |
2180 | = gomp_default_icv_values.teams_thread_limit_var; | |
2181 | ||
9f2fca56 MV |
2182 | if (dev_x != NULL |
2183 | && gomp_get_icv_flag (dev_x->flags, GOMP_ICV_DEFAULT_DEVICE)) | |
2184 | new->icvs.default_device = dev_x->icvs.default_device_var; | |
2185 | else if (dev != NULL | |
2186 | && gomp_get_icv_flag (dev->flags, GOMP_ICV_DEFAULT_DEVICE)) | |
2187 | new->icvs.default_device = dev->icvs.default_device_var; | |
2188 | else if (all != NULL | |
2189 | && gomp_get_icv_flag (all->flags, GOMP_ICV_DEFAULT_DEVICE)) | |
2190 | new->icvs.default_device = all->icvs.default_device_var; | |
2191 | else | |
2192 | new->icvs.default_device = gomp_default_icv_values.default_device_var; | |
2193 | ||
2194 | gomp_offload_icv_list = new; | |
2195 | return &new->icvs; | |
2196 | } | |
2197 | ||
a51df54e IV |
2198 | /* Load image pointed by TARGET_DATA to the device, specified by DEVICEP. |
2199 | And insert to splay tree the mapping between addresses from HOST_TABLE and | |
22be2349 NS |
2200 | from loaded target image. We rely in the host and device compiler |
2201 | emitting variable and functions in the same order. */ | |
a51df54e IV |
2202 | |
2203 | static void | |
2a21ff19 | 2204 | gomp_load_image_to_device (struct gomp_device_descr *devicep, unsigned version, |
22be2349 NS |
2205 | const void *host_table, const void *target_data, |
2206 | bool is_register_lock) | |
a51df54e IV |
2207 | { |
2208 | void **host_func_table = ((void ***) host_table)[0]; | |
2209 | void **host_funcs_end = ((void ***) host_table)[1]; | |
2210 | void **host_var_table = ((void ***) host_table)[2]; | |
2211 | void **host_vars_end = ((void ***) host_table)[3]; | |
2212 | ||
2213 | /* The func table contains only addresses, the var table contains addresses | |
2214 | and corresponding sizes. */ | |
2215 | int num_funcs = host_funcs_end - host_func_table; | |
2216 | int num_vars = (host_vars_end - host_var_table) / 2; | |
2217 | ||
2218 | /* Load image to device and get target addresses for the image. */ | |
2219 | struct addr_pair *target_table = NULL; | |
ea4b23d9 | 2220 | uint64_t *rev_target_fn_table = NULL; |
2a21ff19 NS |
2221 | int i, num_target_entries; |
2222 | ||
ea4b23d9 TB |
2223 | /* With reverse offload, insert also target-host addresses. */ |
2224 | bool rev_lookup = omp_requires_mask & GOMP_REQUIRES_REVERSE_OFFLOAD; | |
2225 | ||
2a21ff19 NS |
2226 | num_target_entries |
2227 | = devicep->load_image_func (devicep->target_id, version, | |
ea4b23d9 TB |
2228 | target_data, &target_table, |
2229 | rev_lookup ? &rev_target_fn_table : NULL); | |
a51df54e | 2230 | |
0bac793e | 2231 | if (num_target_entries != num_funcs + num_vars |
9f2fca56 MV |
2232 | /* "+1" due to the additional ICV struct. */ |
2233 | && num_target_entries != num_funcs + num_vars + 1) | |
a51df54e IV |
2234 | { |
2235 | gomp_mutex_unlock (&devicep->lock); | |
2236 | if (is_register_lock) | |
2237 | gomp_mutex_unlock (®ister_lock); | |
2a21ff19 NS |
2238 | gomp_fatal ("Cannot map target functions or variables" |
2239 | " (expected %u, have %u)", num_funcs + num_vars, | |
2240 | num_target_entries); | |
a51df54e IV |
2241 | } |
2242 | ||
2243 | /* Insert host-target address mapping into splay tree. */ | |
2244 | struct target_mem_desc *tgt = gomp_malloc (sizeof (*tgt)); | |
9f2fca56 MV |
2245 | /* "+1" due to the additional ICV struct. */ |
2246 | tgt->array = gomp_malloc ((num_funcs + num_vars + 1) | |
2247 | * sizeof (*tgt->array)); | |
ea4b23d9 TB |
2248 | if (rev_target_fn_table) |
2249 | tgt->rev_array = gomp_malloc (num_funcs * sizeof (*tgt->rev_array)); | |
2250 | else | |
2251 | tgt->rev_array = NULL; | |
d9a6bd32 | 2252 | tgt->refcount = REFCOUNT_INFINITY; |
a51df54e IV |
2253 | tgt->tgt_start = 0; |
2254 | tgt->tgt_end = 0; | |
2255 | tgt->to_free = NULL; | |
2256 | tgt->prev = NULL; | |
2257 | tgt->list_count = 0; | |
2258 | tgt->device_descr = devicep; | |
2259 | splay_tree_node array = tgt->array; | |
ea4b23d9 | 2260 | reverse_splay_tree_node rev_array = tgt->rev_array; |
a51df54e IV |
2261 | |
2262 | for (i = 0; i < num_funcs; i++) | |
2263 | { | |
2264 | splay_tree_key k = &array->key; | |
2265 | k->host_start = (uintptr_t) host_func_table[i]; | |
2266 | k->host_end = k->host_start + 1; | |
2267 | k->tgt = tgt; | |
2268 | k->tgt_offset = target_table[i].start; | |
d9a6bd32 | 2269 | k->refcount = REFCOUNT_INFINITY; |
6f5b4b64 | 2270 | k->dynamic_refcount = 0; |
2a656a93 | 2271 | k->aux = NULL; |
a51df54e IV |
2272 | array->left = NULL; |
2273 | array->right = NULL; | |
2274 | splay_tree_insert (&devicep->mem_map, array); | |
ea4b23d9 TB |
2275 | if (rev_target_fn_table) |
2276 | { | |
2277 | reverse_splay_tree_key k2 = &rev_array->key; | |
2278 | k2->dev = rev_target_fn_table[i]; | |
2279 | k2->k = k; | |
2280 | rev_array->left = NULL; | |
2281 | rev_array->right = NULL; | |
2282 | if (k2->dev != 0) | |
2283 | reverse_splay_tree_insert (&devicep->mem_map_rev, rev_array); | |
2284 | rev_array++; | |
2285 | } | |
a51df54e IV |
2286 | array++; |
2287 | } | |
2288 | ||
4a38b02b IV |
2289 | /* Most significant bit of the size in host and target tables marks |
2290 | "omp declare target link" variables. */ | |
2291 | const uintptr_t link_bit = 1ULL << (sizeof (uintptr_t) * __CHAR_BIT__ - 1); | |
2292 | const uintptr_t size_mask = ~link_bit; | |
2293 | ||
a51df54e IV |
2294 | for (i = 0; i < num_vars; i++) |
2295 | { | |
2296 | struct addr_pair *target_var = &target_table[num_funcs + i]; | |
4a38b02b | 2297 | uintptr_t target_size = target_var->end - target_var->start; |
4897bb00 | 2298 | bool is_link_var = link_bit & (uintptr_t) host_var_table[i * 2 + 1]; |
4a38b02b | 2299 | |
4897bb00 | 2300 | if (!is_link_var && (uintptr_t) host_var_table[i * 2 + 1] != target_size) |
a51df54e IV |
2301 | { |
2302 | gomp_mutex_unlock (&devicep->lock); | |
2303 | if (is_register_lock) | |
2304 | gomp_mutex_unlock (®ister_lock); | |
4a38b02b | 2305 | gomp_fatal ("Cannot map target variables (size mismatch)"); |
a51df54e IV |
2306 | } |
2307 | ||
2308 | splay_tree_key k = &array->key; | |
2309 | k->host_start = (uintptr_t) host_var_table[i * 2]; | |
4a38b02b IV |
2310 | k->host_end |
2311 | = k->host_start + (size_mask & (uintptr_t) host_var_table[i * 2 + 1]); | |
a51df54e IV |
2312 | k->tgt = tgt; |
2313 | k->tgt_offset = target_var->start; | |
4897bb00 | 2314 | k->refcount = is_link_var ? REFCOUNT_LINK : REFCOUNT_INFINITY; |
6f5b4b64 | 2315 | k->dynamic_refcount = 0; |
2a656a93 | 2316 | k->aux = NULL; |
a51df54e IV |
2317 | array->left = NULL; |
2318 | array->right = NULL; | |
2319 | splay_tree_insert (&devicep->mem_map, array); | |
2320 | array++; | |
2321 | } | |
2322 | ||
9f2fca56 MV |
2323 | /* Last entry is for a ICVs variable. |
2324 | Tolerate case where plugin does not return those entries. */ | |
0bac793e CLT |
2325 | if (num_funcs + num_vars < num_target_entries) |
2326 | { | |
9f2fca56 MV |
2327 | struct addr_pair *var = &target_table[num_funcs + num_vars]; |
2328 | ||
2329 | /* Start address will be non-zero for the ICVs variable if | |
2330 | the variable was found in this image. */ | |
2331 | if (var->start != 0) | |
0bac793e CLT |
2332 | { |
2333 | /* The index of the devicep within devices[] is regarded as its | |
2334 | 'device number', which is different from the per-device type | |
2335 | devicep->target_id. */ | |
9f2fca56 MV |
2336 | int dev_num = (int) (devicep - &devices[0]); |
2337 | struct gomp_offload_icvs *icvs = get_gomp_offload_icvs (dev_num); | |
2338 | size_t var_size = var->end - var->start; | |
81476bc4 MV |
2339 | if (var_size != sizeof (struct gomp_offload_icvs)) |
2340 | { | |
2341 | gomp_mutex_unlock (&devicep->lock); | |
2342 | if (is_register_lock) | |
2343 | gomp_mutex_unlock (®ister_lock); | |
2344 | gomp_fatal ("offload plugin managed 'icv struct' not of expected " | |
2345 | "format"); | |
2346 | } | |
9f2fca56 MV |
2347 | /* Copy the ICVs variable to place on device memory, hereby |
2348 | actually designating its device number into effect. */ | |
2349 | gomp_copy_host2dev (devicep, NULL, (void *) var->start, icvs, | |
2350 | var_size, false, NULL); | |
2351 | splay_tree_key k = &array->key; | |
2352 | k->host_start = (uintptr_t) icvs; | |
2353 | k->host_end = | |
2354 | k->host_start + (size_mask & sizeof (struct gomp_offload_icvs)); | |
2355 | k->tgt = tgt; | |
2356 | k->tgt_offset = var->start; | |
2357 | k->refcount = REFCOUNT_INFINITY; | |
2358 | k->dynamic_refcount = 0; | |
2359 | k->aux = NULL; | |
2360 | array->left = NULL; | |
2361 | array->right = NULL; | |
2362 | splay_tree_insert (&devicep->mem_map, array); | |
2363 | array++; | |
0bac793e CLT |
2364 | } |
2365 | } | |
2366 | ||
a51df54e | 2367 | free (target_table); |
1df3f842 JJ |
2368 | } |
2369 | ||
22be2349 NS |
2370 | /* Unload the mappings described by target_data from device DEVICE_P. |
2371 | The device must be locked. */ | |
2372 | ||
2373 | static void | |
2374 | gomp_unload_image_from_device (struct gomp_device_descr *devicep, | |
2a21ff19 | 2375 | unsigned version, |
22be2349 NS |
2376 | const void *host_table, const void *target_data) |
2377 | { | |
2378 | void **host_func_table = ((void ***) host_table)[0]; | |
2379 | void **host_funcs_end = ((void ***) host_table)[1]; | |
2380 | void **host_var_table = ((void ***) host_table)[2]; | |
2381 | void **host_vars_end = ((void ***) host_table)[3]; | |
2382 | ||
2383 | /* The func table contains only addresses, the var table contains addresses | |
2384 | and corresponding sizes. */ | |
2385 | int num_funcs = host_funcs_end - host_func_table; | |
2386 | int num_vars = (host_vars_end - host_var_table) / 2; | |
2387 | ||
22be2349 NS |
2388 | struct splay_tree_key_s k; |
2389 | splay_tree_key node = NULL; | |
2390 | ||
2391 | /* Find mapping at start of node array */ | |
2392 | if (num_funcs || num_vars) | |
2393 | { | |
2394 | k.host_start = (num_funcs ? (uintptr_t) host_func_table[0] | |
2395 | : (uintptr_t) host_var_table[0]); | |
2396 | k.host_end = k.host_start + 1; | |
2397 | node = splay_tree_lookup (&devicep->mem_map, &k); | |
2398 | } | |
2a21ff19 | 2399 | |
6ce13072 CLT |
2400 | if (!devicep->unload_image_func (devicep->target_id, version, target_data)) |
2401 | { | |
2402 | gomp_mutex_unlock (&devicep->lock); | |
2403 | gomp_fatal ("image unload fail"); | |
2404 | } | |
ea4b23d9 TB |
2405 | if (devicep->mem_map_rev.root) |
2406 | { | |
2407 | /* Free reverse offload splay tree + data; 'tgt->rev_array' is the only | |
2408 | real allocation. */ | |
2409 | assert (node && node->tgt && node->tgt->rev_array); | |
2410 | assert (devicep->mem_map_rev.root->key.k->tgt == node->tgt); | |
2411 | free (node->tgt->rev_array); | |
2412 | devicep->mem_map_rev.root = NULL; | |
2413 | } | |
22be2349 NS |
2414 | |
2415 | /* Remove mappings from splay tree. */ | |
4a38b02b IV |
2416 | int i; |
2417 | for (i = 0; i < num_funcs; i++) | |
22be2349 | 2418 | { |
4a38b02b | 2419 | k.host_start = (uintptr_t) host_func_table[i]; |
22be2349 NS |
2420 | k.host_end = k.host_start + 1; |
2421 | splay_tree_remove (&devicep->mem_map, &k); | |
2422 | } | |
2423 | ||
4a38b02b IV |
2424 | /* Most significant bit of the size in host and target tables marks |
2425 | "omp declare target link" variables. */ | |
2426 | const uintptr_t link_bit = 1ULL << (sizeof (uintptr_t) * __CHAR_BIT__ - 1); | |
2427 | const uintptr_t size_mask = ~link_bit; | |
2428 | bool is_tgt_unmapped = false; | |
2429 | ||
2430 | for (i = 0; i < num_vars; i++) | |
22be2349 | 2431 | { |
4a38b02b IV |
2432 | k.host_start = (uintptr_t) host_var_table[i * 2]; |
2433 | k.host_end | |
2434 | = k.host_start + (size_mask & (uintptr_t) host_var_table[i * 2 + 1]); | |
2435 | ||
2436 | if (!(link_bit & (uintptr_t) host_var_table[i * 2 + 1])) | |
2437 | splay_tree_remove (&devicep->mem_map, &k); | |
2438 | else | |
2439 | { | |
2440 | splay_tree_key n = splay_tree_lookup (&devicep->mem_map, &k); | |
829c6349 | 2441 | is_tgt_unmapped = gomp_remove_var (devicep, n); |
4a38b02b | 2442 | } |
22be2349 NS |
2443 | } |
2444 | ||
4a38b02b | 2445 | if (node && !is_tgt_unmapped) |
22be2349 NS |
2446 | { |
2447 | free (node->tgt); | |
2448 | free (node); | |
2449 | } | |
2450 | } | |
2451 | ||
683f1184 TB |
2452 | static void |
2453 | gomp_requires_to_name (char *buf, size_t size, int requires_mask) | |
2454 | { | |
2455 | char *end = buf + size, *p = buf; | |
2456 | if (requires_mask & GOMP_REQUIRES_UNIFIED_ADDRESS) | |
2457 | p += snprintf (p, end - p, "unified_address"); | |
2458 | if (requires_mask & GOMP_REQUIRES_UNIFIED_SHARED_MEMORY) | |
2459 | p += snprintf (p, end - p, "%sunified_shared_memory", | |
2460 | (p == buf ? "" : ", ")); | |
2461 | if (requires_mask & GOMP_REQUIRES_REVERSE_OFFLOAD) | |
2462 | p += snprintf (p, end - p, "%sreverse_offload", | |
2463 | (p == buf ? "" : ", ")); | |
2464 | } | |
2465 | ||
a51df54e | 2466 | /* This function should be called from every offload image while loading. |
1df3f842 | 2467 | It gets the descriptor of the host func and var tables HOST_TABLE, TYPE of |
3f05e03d | 2468 | the target, and DATA. */ |
1df3f842 JJ |
2469 | |
2470 | void | |
2a21ff19 | 2471 | GOMP_offload_register_ver (unsigned version, const void *host_table, |
3f05e03d | 2472 | int target_type, const void *data) |
1df3f842 | 2473 | { |
a51df54e | 2474 | int i; |
2a21ff19 NS |
2475 | |
2476 | if (GOMP_VERSION_LIB (version) > GOMP_VERSION) | |
2477 | gomp_fatal ("Library too old for offload (version %u < %u)", | |
2478 | GOMP_VERSION, GOMP_VERSION_LIB (version)); | |
683f1184 | 2479 | |
3f05e03d TS |
2480 | int omp_req; |
2481 | const void *target_data; | |
683f1184 TB |
2482 | if (GOMP_VERSION_LIB (version) > 1) |
2483 | { | |
3f05e03d TS |
2484 | omp_req = (int) (size_t) ((void **) data)[0]; |
2485 | target_data = &((void **) data)[1]; | |
2486 | } | |
2487 | else | |
2488 | { | |
2489 | omp_req = 0; | |
2490 | target_data = data; | |
683f1184 TB |
2491 | } |
2492 | ||
a51df54e IV |
2493 | gomp_mutex_lock (®ister_lock); |
2494 | ||
683f1184 TB |
2495 | if (omp_req && omp_requires_mask && omp_requires_mask != omp_req) |
2496 | { | |
2497 | char buf1[sizeof ("unified_address, unified_shared_memory, " | |
2498 | "reverse_offload")]; | |
2499 | char buf2[sizeof ("unified_address, unified_shared_memory, " | |
2500 | "reverse_offload")]; | |
2501 | gomp_requires_to_name (buf2, sizeof (buf2), | |
2502 | omp_req != GOMP_REQUIRES_TARGET_USED | |
2503 | ? omp_req : omp_requires_mask); | |
2504 | if (omp_req != GOMP_REQUIRES_TARGET_USED | |
2505 | && omp_requires_mask != GOMP_REQUIRES_TARGET_USED) | |
2506 | { | |
2507 | gomp_requires_to_name (buf1, sizeof (buf1), omp_requires_mask); | |
2508 | gomp_fatal ("OpenMP 'requires' directive with non-identical clauses " | |
2509 | "in multiple compilation units: '%s' vs. '%s'", | |
2510 | buf1, buf2); | |
2511 | } | |
2512 | else | |
2513 | gomp_fatal ("OpenMP 'requires' directive with '%s' specified only in " | |
2514 | "some compilation units", buf2); | |
2515 | } | |
2516 | omp_requires_mask = omp_req; | |
2517 | ||
a51df54e IV |
2518 | /* Load image to all initialized devices. */ |
2519 | for (i = 0; i < num_devices; i++) | |
2520 | { | |
2521 | struct gomp_device_descr *devicep = &devices[i]; | |
2522 | gomp_mutex_lock (&devicep->lock); | |
d84ffc0a IV |
2523 | if (devicep->type == target_type |
2524 | && devicep->state == GOMP_DEVICE_INITIALIZED) | |
2a21ff19 NS |
2525 | gomp_load_image_to_device (devicep, version, |
2526 | host_table, target_data, true); | |
a51df54e IV |
2527 | gomp_mutex_unlock (&devicep->lock); |
2528 | } | |
1df3f842 | 2529 | |
a51df54e IV |
2530 | /* Insert image to array of pending images. */ |
2531 | offload_images | |
2532 | = gomp_realloc_unlock (offload_images, | |
2533 | (num_offload_images + 1) | |
2534 | * sizeof (struct offload_image_descr)); | |
2a21ff19 | 2535 | offload_images[num_offload_images].version = version; |
1df3f842 JJ |
2536 | offload_images[num_offload_images].type = target_type; |
2537 | offload_images[num_offload_images].host_table = host_table; | |
2538 | offload_images[num_offload_images].target_data = target_data; | |
2539 | ||
2540 | num_offload_images++; | |
a51df54e | 2541 | gomp_mutex_unlock (®ister_lock); |
1df3f842 JJ |
2542 | } |
2543 | ||
9ef71453 TS |
2544 | /* Legacy entry point. */ |
2545 | ||
2a21ff19 NS |
2546 | void |
2547 | GOMP_offload_register (const void *host_table, int target_type, | |
2548 | const void *target_data) | |
2549 | { | |
2550 | GOMP_offload_register_ver (0, host_table, target_type, target_data); | |
2551 | } | |
2552 | ||
a51df54e IV |
2553 | /* This function should be called from every offload image while unloading. |
2554 | It gets the descriptor of the host func and var tables HOST_TABLE, TYPE of | |
3f05e03d | 2555 | the target, and DATA. */ |
1df3f842 | 2556 | |
a51df54e | 2557 | void |
2a21ff19 | 2558 | GOMP_offload_unregister_ver (unsigned version, const void *host_table, |
3f05e03d | 2559 | int target_type, const void *data) |
1df3f842 | 2560 | { |
a51df54e IV |
2561 | int i; |
2562 | ||
3f05e03d TS |
2563 | if (GOMP_VERSION_LIB (version) > GOMP_VERSION) |
2564 | gomp_fatal ("Library too old for offload (version %u < %u)", | |
2565 | GOMP_VERSION, GOMP_VERSION_LIB (version)); | |
2566 | ||
2567 | const void *target_data; | |
2568 | if (GOMP_VERSION_LIB (version) > 1) | |
2569 | target_data = &((void **) data)[1]; | |
2570 | else | |
2571 | target_data = data; | |
2572 | ||
a51df54e IV |
2573 | gomp_mutex_lock (®ister_lock); |
2574 | ||
2575 | /* Unload image from all initialized devices. */ | |
2576 | for (i = 0; i < num_devices; i++) | |
2577 | { | |
a51df54e IV |
2578 | struct gomp_device_descr *devicep = &devices[i]; |
2579 | gomp_mutex_lock (&devicep->lock); | |
d84ffc0a IV |
2580 | if (devicep->type == target_type |
2581 | && devicep->state == GOMP_DEVICE_INITIALIZED) | |
2a21ff19 NS |
2582 | gomp_unload_image_from_device (devicep, version, |
2583 | host_table, target_data); | |
a51df54e IV |
2584 | gomp_mutex_unlock (&devicep->lock); |
2585 | } | |
2586 | ||
2587 | /* Remove image from array of pending images. */ | |
2588 | for (i = 0; i < num_offload_images; i++) | |
2589 | if (offload_images[i].target_data == target_data) | |
2590 | { | |
2591 | offload_images[i] = offload_images[--num_offload_images]; | |
2592 | break; | |
2593 | } | |
2594 | ||
2595 | gomp_mutex_unlock (®ister_lock); | |
41dbbb37 | 2596 | } |
1df3f842 | 2597 | |
9ef71453 TS |
2598 | /* Legacy entry point. */ |
2599 | ||
2a21ff19 NS |
2600 | void |
2601 | GOMP_offload_unregister (const void *host_table, int target_type, | |
2602 | const void *target_data) | |
2603 | { | |
2604 | GOMP_offload_unregister_ver (0, host_table, target_type, target_data); | |
2605 | } | |
2606 | ||
a51df54e IV |
2607 | /* This function initializes the target device, specified by DEVICEP. DEVICEP |
2608 | must be locked on entry, and remains locked on return. */ | |
41dbbb37 TS |
2609 | |
2610 | attribute_hidden void | |
a51df54e | 2611 | gomp_init_device (struct gomp_device_descr *devicep) |
41dbbb37 | 2612 | { |
1df3f842 | 2613 | int i; |
6ce13072 CLT |
2614 | if (!devicep->init_device_func (devicep->target_id)) |
2615 | { | |
2616 | gomp_mutex_unlock (&devicep->lock); | |
2617 | gomp_fatal ("device initialization failed"); | |
2618 | } | |
a51df54e IV |
2619 | |
2620 | /* Load to device all images registered by the moment. */ | |
2621 | for (i = 0; i < num_offload_images; i++) | |
1df3f842 | 2622 | { |
a51df54e IV |
2623 | struct offload_image_descr *image = &offload_images[i]; |
2624 | if (image->type == devicep->type) | |
2a21ff19 NS |
2625 | gomp_load_image_to_device (devicep, image->version, |
2626 | image->host_table, image->target_data, | |
2627 | false); | |
1df3f842 JJ |
2628 | } |
2629 | ||
1f4c5b9b CLT |
2630 | /* Initialize OpenACC asynchronous queues. */ |
2631 | goacc_init_asyncqueues (devicep); | |
2632 | ||
d84ffc0a | 2633 | devicep->state = GOMP_DEVICE_INITIALIZED; |
41dbbb37 TS |
2634 | } |
2635 | ||
1f4c5b9b CLT |
2636 | /* This function finalizes the target device, specified by DEVICEP. DEVICEP |
2637 | must be locked on entry, and remains locked on return. */ | |
2638 | ||
2639 | attribute_hidden bool | |
2640 | gomp_fini_device (struct gomp_device_descr *devicep) | |
2641 | { | |
2642 | bool ret = goacc_fini_asyncqueues (devicep); | |
2643 | ret &= devicep->fini_device_func (devicep->target_id); | |
2644 | devicep->state = GOMP_DEVICE_FINALIZED; | |
2645 | return ret; | |
2646 | } | |
2647 | ||
22be2349 NS |
2648 | attribute_hidden void |
2649 | gomp_unload_device (struct gomp_device_descr *devicep) | |
2650 | { | |
d84ffc0a | 2651 | if (devicep->state == GOMP_DEVICE_INITIALIZED) |
22be2349 NS |
2652 | { |
2653 | unsigned i; | |
2654 | ||
2655 | /* Unload from device all images registered at the moment. */ | |
2656 | for (i = 0; i < num_offload_images; i++) | |
2657 | { | |
2658 | struct offload_image_descr *image = &offload_images[i]; | |
2659 | if (image->type == devicep->type) | |
2a21ff19 NS |
2660 | gomp_unload_image_from_device (devicep, image->version, |
2661 | image->host_table, | |
22be2349 NS |
2662 | image->target_data); |
2663 | } | |
2664 | } | |
2665 | } | |
2666 | ||
e01d41e5 | 2667 | /* Host fallback for GOMP_target{,_ext} routines. */ |
d9a6bd32 JJ |
2668 | |
2669 | static void | |
1bfc07d1 | 2670 | gomp_target_fallback (void (*fn) (void *), void **hostaddrs, |
aea72386 | 2671 | struct gomp_device_descr *devicep, void **args) |
d9a6bd32 JJ |
2672 | { |
2673 | struct gomp_thread old_thr, *thr = gomp_thread (); | |
1bfc07d1 KCY |
2674 | |
2675 | if (gomp_target_offload_var == GOMP_TARGET_OFFLOAD_MANDATORY | |
2676 | && devicep != NULL) | |
2677 | gomp_fatal ("OMP_TARGET_OFFLOAD is set to MANDATORY, but device cannot " | |
2678 | "be used for offloading"); | |
2679 | ||
d9a6bd32 JJ |
2680 | old_thr = *thr; |
2681 | memset (thr, '\0', sizeof (*thr)); | |
2682 | if (gomp_places_list) | |
2683 | { | |
2684 | thr->place = old_thr.place; | |
2685 | thr->ts.place_partition_len = gomp_places_list_len; | |
2686 | } | |
aea72386 JJ |
2687 | if (args) |
2688 | while (*args) | |
2689 | { | |
2690 | intptr_t id = (intptr_t) *args++, val; | |
2691 | if (id & GOMP_TARGET_ARG_SUBSEQUENT_PARAM) | |
2692 | val = (intptr_t) *args++; | |
2693 | else | |
2694 | val = id >> GOMP_TARGET_ARG_VALUE_SHIFT; | |
2695 | if ((id & GOMP_TARGET_ARG_DEVICE_MASK) != GOMP_TARGET_ARG_DEVICE_ALL) | |
2696 | continue; | |
2697 | id &= GOMP_TARGET_ARG_ID_MASK; | |
2698 | if (id != GOMP_TARGET_ARG_THREAD_LIMIT) | |
2699 | continue; | |
2700 | val = val > INT_MAX ? INT_MAX : val; | |
2701 | if (val) | |
2702 | gomp_icv (true)->thread_limit_var = val; | |
2703 | break; | |
2704 | } | |
2705 | ||
d9a6bd32 JJ |
2706 | fn (hostaddrs); |
2707 | gomp_free_thread (thr); | |
2708 | *thr = old_thr; | |
2709 | } | |
2710 | ||
b2b40051 MJ |
2711 | /* Calculate alignment and size requirements of a private copy of data shared |
2712 | as GOMP_MAP_FIRSTPRIVATE and store them to TGT_ALIGN and TGT_SIZE. */ | |
e01d41e5 | 2713 | |
b2b40051 MJ |
2714 | static inline void |
2715 | calculate_firstprivate_requirements (size_t mapnum, size_t *sizes, | |
2716 | unsigned short *kinds, size_t *tgt_align, | |
2717 | size_t *tgt_size) | |
e01d41e5 | 2718 | { |
b2b40051 MJ |
2719 | size_t i; |
2720 | for (i = 0; i < mapnum; i++) | |
2721 | if ((kinds[i] & 0xff) == GOMP_MAP_FIRSTPRIVATE) | |
2722 | { | |
2723 | size_t align = (size_t) 1 << (kinds[i] >> 8); | |
2724 | if (*tgt_align < align) | |
2725 | *tgt_align = align; | |
2726 | *tgt_size = (*tgt_size + align - 1) & ~(align - 1); | |
2727 | *tgt_size += sizes[i]; | |
2728 | } | |
2729 | } | |
2730 | ||
2731 | /* Copy data shared as GOMP_MAP_FIRSTPRIVATE to DST. */ | |
2732 | ||
2733 | static inline void | |
2734 | copy_firstprivate_data (char *tgt, size_t mapnum, void **hostaddrs, | |
2735 | size_t *sizes, unsigned short *kinds, size_t tgt_align, | |
2736 | size_t tgt_size) | |
2737 | { | |
2738 | uintptr_t al = (uintptr_t) tgt & (tgt_align - 1); | |
2739 | if (al) | |
2740 | tgt += tgt_align - al; | |
2741 | tgt_size = 0; | |
2742 | size_t i; | |
e01d41e5 | 2743 | for (i = 0; i < mapnum; i++) |
bbb7f860 | 2744 | if ((kinds[i] & 0xff) == GOMP_MAP_FIRSTPRIVATE && hostaddrs[i] != NULL) |
e01d41e5 JJ |
2745 | { |
2746 | size_t align = (size_t) 1 << (kinds[i] >> 8); | |
e01d41e5 | 2747 | tgt_size = (tgt_size + align - 1) & ~(align - 1); |
b2b40051 MJ |
2748 | memcpy (tgt + tgt_size, hostaddrs[i], sizes[i]); |
2749 | hostaddrs[i] = tgt + tgt_size; | |
2750 | tgt_size = tgt_size + sizes[i]; | |
49d1a2f9 TB |
2751 | if (i + 1 < mapnum && (kinds[i+1] & 0xff) == GOMP_MAP_ATTACH) |
2752 | { | |
2753 | *(*(uintptr_t**) hostaddrs[i+1] + sizes[i+1]) = (uintptr_t) hostaddrs[i]; | |
2754 | ++i; | |
2755 | } | |
e01d41e5 | 2756 | } |
b2b40051 MJ |
2757 | } |
2758 | ||
e01d41e5 | 2759 | /* Helper function of GOMP_target{,_ext} routines. */ |
d9a6bd32 JJ |
2760 | |
2761 | static void * | |
2762 | gomp_get_target_fn_addr (struct gomp_device_descr *devicep, | |
2763 | void (*host_fn) (void *)) | |
2764 | { | |
2765 | if (devicep->capabilities & GOMP_OFFLOAD_CAP_NATIVE_EXEC) | |
2766 | return (void *) host_fn; | |
2767 | else | |
2768 | { | |
2769 | gomp_mutex_lock (&devicep->lock); | |
d84ffc0a IV |
2770 | if (devicep->state == GOMP_DEVICE_FINALIZED) |
2771 | { | |
2772 | gomp_mutex_unlock (&devicep->lock); | |
2773 | return NULL; | |
2774 | } | |
2775 | ||
d9a6bd32 JJ |
2776 | struct splay_tree_key_s k; |
2777 | k.host_start = (uintptr_t) host_fn; | |
2778 | k.host_end = k.host_start + 1; | |
2779 | splay_tree_key tgt_fn = splay_tree_lookup (&devicep->mem_map, &k); | |
2780 | gomp_mutex_unlock (&devicep->lock); | |
2781 | if (tgt_fn == NULL) | |
eb4048f2 | 2782 | return NULL; |
d9a6bd32 JJ |
2783 | |
2784 | return (void *) tgt_fn->tgt_offset; | |
2785 | } | |
2786 | } | |
2787 | ||
acf0174b | 2788 | /* Called when encountering a target directive. If DEVICE |
41dbbb37 TS |
2789 | is GOMP_DEVICE_ICV, it means use device-var ICV. If it is |
2790 | GOMP_DEVICE_HOST_FALLBACK (or any value | |
2791 | larger than last available hw device), use host fallback. | |
128b26dc TS |
2792 | FN is address of host code, UNUSED is part of the current ABI, but |
2793 | we're not actually using it. HOSTADDRS, SIZES and KINDS are arrays | |
acf0174b JJ |
2794 | with MAPNUM entries, with addresses of the host objects, |
2795 | sizes of the host objects (resp. for pointer kind pointer bias | |
2796 | and assumed sizeof (void *) size) and kinds. */ | |
2797 | ||
2798 | void | |
128b26dc | 2799 | GOMP_target (int device, void (*fn) (void *), const void *unused, |
acf0174b JJ |
2800 | size_t mapnum, void **hostaddrs, size_t *sizes, |
2801 | unsigned char *kinds) | |
2802 | { | |
1158fe43 | 2803 | struct gomp_device_descr *devicep = resolve_device (device, true); |
41dbbb37 | 2804 | |
d84ffc0a | 2805 | void *fn_addr; |
41dbbb37 | 2806 | if (devicep == NULL |
d84ffc0a | 2807 | || !(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
b2b40051 MJ |
2808 | /* All shared memory devices should use the GOMP_target_ext function. */ |
2809 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM | |
d84ffc0a | 2810 | || !(fn_addr = gomp_get_target_fn_addr (devicep, fn))) |
aea72386 | 2811 | return gomp_target_fallback (fn, hostaddrs, devicep, NULL); |
d9a6bd32 | 2812 | |
275c736e | 2813 | htab_t refcount_set = htab_create (mapnum); |
d9a6bd32 JJ |
2814 | struct target_mem_desc *tgt_vars |
2815 | = gomp_map_vars (devicep, mapnum, hostaddrs, NULL, sizes, kinds, false, | |
275c736e | 2816 | &refcount_set, GOMP_MAP_VARS_TARGET); |
b2b40051 MJ |
2817 | devicep->run_func (devicep->target_id, fn_addr, (void *) tgt_vars->tgt_start, |
2818 | NULL); | |
275c736e CLT |
2819 | htab_clear (refcount_set); |
2820 | gomp_unmap_vars (tgt_vars, true, &refcount_set); | |
2821 | htab_free (refcount_set); | |
d9a6bd32 | 2822 | } |
1df3f842 | 2823 | |
001ab12e FH |
2824 | static inline unsigned int |
2825 | clear_unsupported_flags (struct gomp_device_descr *devicep, unsigned int flags) | |
2826 | { | |
2827 | /* If we cannot run asynchronously, simply ignore nowait. */ | |
2828 | if (devicep != NULL && devicep->async_run_func == NULL) | |
2829 | flags &= ~GOMP_TARGET_FLAG_NOWAIT; | |
2830 | ||
2831 | return flags; | |
2832 | } | |
2833 | ||
81476bc4 MV |
2834 | static void |
2835 | gomp_copy_back_icvs (struct gomp_device_descr *devicep, int device) | |
2836 | { | |
2837 | struct gomp_offload_icv_list *item = gomp_get_offload_icv_item (device); | |
2838 | if (item == NULL) | |
2839 | return; | |
2840 | ||
2841 | void *host_ptr = &item->icvs; | |
2842 | void *dev_ptr = omp_get_mapped_ptr (host_ptr, device); | |
2843 | if (dev_ptr != NULL) | |
2844 | gomp_copy_dev2host (devicep, NULL, host_ptr, dev_ptr, | |
2845 | sizeof (struct gomp_offload_icvs)); | |
2846 | } | |
2847 | ||
e01d41e5 JJ |
2848 | /* Like GOMP_target, but KINDS is 16-bit, UNUSED is no longer present, |
2849 | and several arguments have been added: | |
2850 | FLAGS is a bitmask, see GOMP_TARGET_FLAG_* in gomp-constants.h. | |
2851 | DEPEND is array of dependencies, see GOMP_task for details. | |
b2b40051 MJ |
2852 | |
2853 | ARGS is a pointer to an array consisting of a variable number of both | |
2854 | device-independent and device-specific arguments, which can take one two | |
2855 | elements where the first specifies for which device it is intended, the type | |
2856 | and optionally also the value. If the value is not present in the first | |
2857 | one, the whole second element the actual value. The last element of the | |
2858 | array is a single NULL. Among the device independent can be for example | |
2859 | NUM_TEAMS and THREAD_LIMIT. | |
2860 | ||
e01d41e5 JJ |
2861 | NUM_TEAMS is positive if GOMP_teams will be called in the body with |
2862 | that value, or 1 if teams construct is not present, or 0, if | |
2863 | teams construct does not have num_teams clause and so the choice is | |
2864 | implementation defined, and -1 if it can't be determined on the host | |
2865 | what value will GOMP_teams have on the device. | |
2866 | THREAD_LIMIT similarly is positive if GOMP_teams will be called in the | |
2867 | body with that value, or 0, if teams construct does not have thread_limit | |
2868 | clause or the teams construct is not present, or -1 if it can't be | |
2869 | determined on the host what value will GOMP_teams have on the device. */ | |
2870 | ||
d9a6bd32 | 2871 | void |
e01d41e5 JJ |
2872 | GOMP_target_ext (int device, void (*fn) (void *), size_t mapnum, |
2873 | void **hostaddrs, size_t *sizes, unsigned short *kinds, | |
b2b40051 | 2874 | unsigned int flags, void **depend, void **args) |
d9a6bd32 | 2875 | { |
1158fe43 | 2876 | struct gomp_device_descr *devicep = resolve_device (device, true); |
21f3a236 JJ |
2877 | size_t tgt_align = 0, tgt_size = 0; |
2878 | bool fpc_done = false; | |
41dbbb37 | 2879 | |
81476bc4 MV |
2880 | /* Obtain the original TEAMS and THREADS values from ARGS. */ |
2881 | intptr_t orig_teams = 1, orig_threads = 0; | |
2882 | size_t num_args = 0, len = 1, teams_len = 1, threads_len = 1; | |
2883 | void **tmpargs = args; | |
2884 | while (*tmpargs) | |
2885 | { | |
2886 | intptr_t id = (intptr_t) *tmpargs++, val; | |
2887 | if (id & GOMP_TARGET_ARG_SUBSEQUENT_PARAM) | |
2888 | { | |
2889 | val = (intptr_t) *tmpargs++; | |
2890 | len = 2; | |
2891 | } | |
2892 | else | |
2893 | { | |
2894 | val = id >> GOMP_TARGET_ARG_VALUE_SHIFT; | |
2895 | len = 1; | |
2896 | } | |
2897 | num_args += len; | |
2898 | if ((id & GOMP_TARGET_ARG_DEVICE_MASK) != GOMP_TARGET_ARG_DEVICE_ALL) | |
2899 | continue; | |
2900 | val = val > INT_MAX ? INT_MAX : val; | |
2901 | if ((id & GOMP_TARGET_ARG_ID_MASK) == GOMP_TARGET_ARG_NUM_TEAMS) | |
2902 | { | |
2903 | orig_teams = val; | |
2904 | teams_len = len; | |
2905 | } | |
2906 | else if ((id & GOMP_TARGET_ARG_ID_MASK) == GOMP_TARGET_ARG_THREAD_LIMIT) | |
2907 | { | |
2908 | orig_threads = val; | |
2909 | threads_len = len; | |
2910 | } | |
2911 | } | |
2912 | ||
2913 | intptr_t new_teams = orig_teams, new_threads = orig_threads; | |
2914 | /* ORIG_TEAMS == -2: No explicit teams construct specified. Set to 1. | |
2915 | ORIG_TEAMS == -1: TEAMS construct with NUM_TEAMS clause specified, but the | |
2916 | value could not be determined. No change. | |
2917 | ORIG_TEAMS == 0: TEAMS construct without NUM_TEAMS clause. | |
2918 | Set device-specific value. | |
2919 | ORIG_TEAMS > 0: Value was already set through e.g. NUM_TEAMS clause. | |
2920 | No change. */ | |
2921 | if (orig_teams == -2) | |
2922 | new_teams = 1; | |
2923 | else if (orig_teams == 0) | |
2924 | { | |
2925 | struct gomp_offload_icv_list *item = gomp_get_offload_icv_item (device); | |
2926 | if (item != NULL) | |
2927 | new_teams = item->icvs.nteams; | |
2928 | } | |
2929 | /* The device-specific teams-thread-limit is only set if (a) an explicit TEAMS | |
2930 | region exists, i.e. ORIG_TEAMS > -2, and (b) THREADS was not already set by | |
2931 | e.g. a THREAD_LIMIT clause. */ | |
2932 | if (orig_teams > -2 && orig_threads == 0) | |
2933 | { | |
2934 | struct gomp_offload_icv_list *item = gomp_get_offload_icv_item (device); | |
2935 | if (item != NULL) | |
2936 | new_threads = item->icvs.teams_thread_limit; | |
2937 | } | |
2938 | ||
2939 | /* Copy and change the arguments list only if TEAMS or THREADS need to be | |
2940 | updated. */ | |
2941 | void **new_args = args; | |
2942 | if (orig_teams != new_teams || orig_threads != new_threads) | |
2943 | { | |
2944 | size_t tms_len = (orig_teams == new_teams | |
2945 | ? teams_len | |
2946 | : (new_teams > -(1 << 15) && new_teams < (1 << 15) | |
2947 | ? 1 : 2)); | |
2948 | size_t ths_len = (orig_threads == new_threads | |
2949 | ? threads_len | |
2950 | : (new_threads > -(1 << 15) && new_threads < (1 << 15) | |
2951 | ? 1 : 2)); | |
2952 | /* One additional item after the last arg must be NULL. */ | |
2953 | size_t new_args_cnt = num_args - teams_len - threads_len + tms_len | |
2954 | + ths_len + 1; | |
2955 | new_args = (void **) gomp_alloca (new_args_cnt * sizeof (void*)); | |
2956 | ||
2957 | tmpargs = args; | |
2958 | void **tmp_new_args = new_args; | |
2959 | /* Copy all args except TEAMS and THREADS. TEAMS and THREADS are copied | |
2960 | too if they have not been changed and skipped otherwise. */ | |
2961 | while (*tmpargs) | |
2962 | { | |
2963 | intptr_t id = (intptr_t) *tmpargs; | |
2964 | if (((id & GOMP_TARGET_ARG_ID_MASK) == GOMP_TARGET_ARG_NUM_TEAMS | |
2965 | && orig_teams != new_teams) | |
2966 | || ((id & GOMP_TARGET_ARG_ID_MASK) == GOMP_TARGET_ARG_THREAD_LIMIT | |
2967 | && orig_threads != new_threads)) | |
2968 | { | |
2969 | tmpargs++; | |
2970 | if (id & GOMP_TARGET_ARG_SUBSEQUENT_PARAM) | |
2971 | tmpargs++; | |
2972 | } | |
2973 | else | |
2974 | { | |
2975 | *tmp_new_args++ = *tmpargs++; | |
2976 | if (id & GOMP_TARGET_ARG_SUBSEQUENT_PARAM) | |
2977 | *tmp_new_args++ = *tmpargs++; | |
2978 | } | |
2979 | } | |
2980 | ||
2981 | /* Add the new TEAMS arg to the new args list if it has been changed. */ | |
2982 | if (orig_teams != new_teams) | |
2983 | { | |
2984 | intptr_t new_val = new_teams; | |
2985 | if (tms_len == 1) | |
2986 | { | |
2987 | new_val = (new_val << GOMP_TARGET_ARG_VALUE_SHIFT) | |
2988 | | GOMP_TARGET_ARG_NUM_TEAMS; | |
2989 | *tmp_new_args++ = (void *) new_val; | |
2990 | } | |
2991 | else | |
2992 | { | |
2993 | *tmp_new_args++ = (void *) (GOMP_TARGET_ARG_SUBSEQUENT_PARAM | |
2994 | | GOMP_TARGET_ARG_NUM_TEAMS); | |
2995 | *tmp_new_args++ = (void *) new_val; | |
2996 | } | |
2997 | } | |
2998 | ||
2999 | /* Add the new THREADS arg to the new args list if it has been changed. */ | |
3000 | if (orig_threads != new_threads) | |
3001 | { | |
3002 | intptr_t new_val = new_threads; | |
3003 | if (ths_len == 1) | |
3004 | { | |
3005 | new_val = (new_val << GOMP_TARGET_ARG_VALUE_SHIFT) | |
3006 | | GOMP_TARGET_ARG_THREAD_LIMIT; | |
3007 | *tmp_new_args++ = (void *) new_val; | |
3008 | } | |
3009 | else | |
3010 | { | |
3011 | *tmp_new_args++ = (void *) (GOMP_TARGET_ARG_SUBSEQUENT_PARAM | |
3012 | | GOMP_TARGET_ARG_THREAD_LIMIT); | |
3013 | *tmp_new_args++ = (void *) new_val; | |
3014 | } | |
3015 | } | |
3016 | ||
3017 | *tmp_new_args = NULL; | |
3018 | } | |
3019 | ||
001ab12e FH |
3020 | flags = clear_unsupported_flags (devicep, flags); |
3021 | ||
e4606348 JJ |
3022 | if (flags & GOMP_TARGET_FLAG_NOWAIT) |
3023 | { | |
3024 | struct gomp_thread *thr = gomp_thread (); | |
3025 | /* Create a team if we don't have any around, as nowait | |
3026 | target tasks make sense to run asynchronously even when | |
3027 | outside of any parallel. */ | |
3028 | if (__builtin_expect (thr->ts.team == NULL, 0)) | |
3029 | { | |
3030 | struct gomp_team *team = gomp_new_team (1); | |
3031 | struct gomp_task *task = thr->task; | |
a58a965e | 3032 | struct gomp_task **implicit_task = &task; |
e4606348 JJ |
3033 | struct gomp_task_icv *icv = task ? &task->icv : &gomp_global_icv; |
3034 | team->prev_ts = thr->ts; | |
3035 | thr->ts.team = team; | |
3036 | thr->ts.team_id = 0; | |
3037 | thr->ts.work_share = &team->work_shares[0]; | |
3038 | thr->ts.last_work_share = NULL; | |
3039 | #ifdef HAVE_SYNC_BUILTINS | |
3040 | thr->ts.single_count = 0; | |
3041 | #endif | |
3042 | thr->ts.static_trip = 0; | |
3043 | thr->task = &team->implicit_task[0]; | |
3044 | gomp_init_task (thr->task, NULL, icv); | |
a58a965e JJ |
3045 | while (*implicit_task |
3046 | && (*implicit_task)->kind != GOMP_TASK_IMPLICIT) | |
3047 | implicit_task = &(*implicit_task)->parent; | |
3048 | if (*implicit_task) | |
e4606348 | 3049 | { |
a58a965e | 3050 | thr->task = *implicit_task; |
e4606348 | 3051 | gomp_end_task (); |
a58a965e | 3052 | free (*implicit_task); |
e4606348 JJ |
3053 | thr->task = &team->implicit_task[0]; |
3054 | } | |
3055 | else | |
3056 | pthread_setspecific (gomp_thread_destructor, thr); | |
a58a965e JJ |
3057 | if (implicit_task != &task) |
3058 | { | |
3059 | *implicit_task = thr->task; | |
3060 | thr->task = task; | |
3061 | } | |
e4606348 JJ |
3062 | } |
3063 | if (thr->ts.team | |
3064 | && !thr->task->final_task) | |
3065 | { | |
3066 | gomp_create_target_task (devicep, fn, mapnum, hostaddrs, | |
81476bc4 | 3067 | sizes, kinds, flags, depend, new_args, |
e4606348 JJ |
3068 | GOMP_TARGET_TASK_BEFORE_MAP); |
3069 | return; | |
3070 | } | |
3071 | } | |
3072 | ||
3073 | /* If there are depend clauses, but nowait is not present | |
3074 | (or we are in a final task), block the parent task until the | |
3075 | dependencies are resolved and then just continue with the rest | |
3076 | of the function as if it is a merged task. */ | |
d9a6bd32 JJ |
3077 | if (depend != NULL) |
3078 | { | |
3079 | struct gomp_thread *thr = gomp_thread (); | |
3080 | if (thr->task && thr->task->depend_hash) | |
21f3a236 JJ |
3081 | { |
3082 | /* If we might need to wait, copy firstprivate now. */ | |
3083 | calculate_firstprivate_requirements (mapnum, sizes, kinds, | |
3084 | &tgt_align, &tgt_size); | |
3085 | if (tgt_align) | |
3086 | { | |
3087 | char *tgt = gomp_alloca (tgt_size + tgt_align - 1); | |
3088 | copy_firstprivate_data (tgt, mapnum, hostaddrs, sizes, kinds, | |
3089 | tgt_align, tgt_size); | |
3090 | } | |
3091 | fpc_done = true; | |
3092 | gomp_task_maybe_wait_for_dependencies (depend); | |
3093 | } | |
d9a6bd32 | 3094 | } |
41dbbb37 | 3095 | |
d84ffc0a | 3096 | void *fn_addr; |
d9a6bd32 | 3097 | if (devicep == NULL |
d84ffc0a | 3098 | || !(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
b2b40051 MJ |
3099 | || !(fn_addr = gomp_get_target_fn_addr (devicep, fn)) |
3100 | || (devicep->can_run_func && !devicep->can_run_func (fn_addr))) | |
41dbbb37 | 3101 | { |
21f3a236 JJ |
3102 | if (!fpc_done) |
3103 | { | |
3104 | calculate_firstprivate_requirements (mapnum, sizes, kinds, | |
3105 | &tgt_align, &tgt_size); | |
3106 | if (tgt_align) | |
3107 | { | |
3108 | char *tgt = gomp_alloca (tgt_size + tgt_align - 1); | |
3109 | copy_firstprivate_data (tgt, mapnum, hostaddrs, sizes, kinds, | |
3110 | tgt_align, tgt_size); | |
3111 | } | |
3112 | } | |
81476bc4 | 3113 | gomp_target_fallback (fn, hostaddrs, devicep, new_args); |
d9a6bd32 | 3114 | return; |
41dbbb37 | 3115 | } |
1df3f842 | 3116 | |
b2b40051 | 3117 | struct target_mem_desc *tgt_vars; |
275c736e CLT |
3118 | htab_t refcount_set = NULL; |
3119 | ||
b2b40051 MJ |
3120 | if (devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) |
3121 | { | |
21f3a236 JJ |
3122 | if (!fpc_done) |
3123 | { | |
3124 | calculate_firstprivate_requirements (mapnum, sizes, kinds, | |
3125 | &tgt_align, &tgt_size); | |
3126 | if (tgt_align) | |
3127 | { | |
3128 | char *tgt = gomp_alloca (tgt_size + tgt_align - 1); | |
3129 | copy_firstprivate_data (tgt, mapnum, hostaddrs, sizes, kinds, | |
3130 | tgt_align, tgt_size); | |
3131 | } | |
3132 | } | |
b2b40051 MJ |
3133 | tgt_vars = NULL; |
3134 | } | |
3135 | else | |
275c736e CLT |
3136 | { |
3137 | refcount_set = htab_create (mapnum); | |
3138 | tgt_vars = gomp_map_vars (devicep, mapnum, hostaddrs, NULL, sizes, kinds, | |
3139 | true, &refcount_set, GOMP_MAP_VARS_TARGET); | |
3140 | } | |
b2b40051 MJ |
3141 | devicep->run_func (devicep->target_id, fn_addr, |
3142 | tgt_vars ? (void *) tgt_vars->tgt_start : hostaddrs, | |
81476bc4 | 3143 | new_args); |
b2b40051 | 3144 | if (tgt_vars) |
275c736e CLT |
3145 | { |
3146 | htab_clear (refcount_set); | |
3147 | gomp_unmap_vars (tgt_vars, true, &refcount_set); | |
3148 | } | |
3149 | if (refcount_set) | |
3150 | htab_free (refcount_set); | |
81476bc4 MV |
3151 | |
3152 | /* Copy back ICVs from device to host. | |
3153 | HOST_PTR is expected to exist since it was added in | |
3154 | gomp_load_image_to_device if not already available. */ | |
3155 | gomp_copy_back_icvs (devicep, device); | |
3156 | ||
acf0174b JJ |
3157 | } |
3158 | ||
ea4b23d9 TB |
3159 | |
3160 | /* Reverse lookup (device addr -> host addr) for reverse offload. We avoid | |
3161 | keeping track of all variable handling - assuming that reverse offload occurs | |
3162 | ony very rarely. Downside is that the reverse search is slow. */ | |
3163 | ||
3164 | struct gomp_splay_tree_rev_lookup_data { | |
3165 | uintptr_t tgt_start; | |
3166 | uintptr_t tgt_end; | |
3167 | splay_tree_key key; | |
3168 | }; | |
3169 | ||
3170 | static int | |
3171 | gomp_splay_tree_rev_lookup (splay_tree_key key, void *d) | |
3172 | { | |
3173 | struct gomp_splay_tree_rev_lookup_data *data; | |
3174 | data = (struct gomp_splay_tree_rev_lookup_data *)d; | |
3175 | uintptr_t tgt_start = key->tgt->tgt_start + key->tgt_offset; | |
3176 | ||
3177 | if (tgt_start > data->tgt_start || key->tgt->list_count == 0) | |
3178 | return 0; | |
3179 | ||
3180 | size_t j; | |
3181 | for (j = 0; j < key->tgt->list_count; j++) | |
3182 | if (key->tgt->list[j].key == key) | |
3183 | break; | |
3184 | assert (j < key->tgt->list_count); | |
3185 | uintptr_t tgt_end = tgt_start + key->tgt->list[j].length; | |
3186 | ||
3187 | if ((tgt_start == data->tgt_start && tgt_end == data->tgt_end) | |
3188 | || (tgt_end > data->tgt_start && tgt_start < data->tgt_end)) | |
3189 | { | |
3190 | data->key = key; | |
3191 | return 1; | |
3192 | } | |
3193 | return 0; | |
3194 | } | |
3195 | ||
3196 | static inline splay_tree_key | |
3197 | gomp_map_rev_lookup (splay_tree mem_map, uint64_t tgt_start, uint64_t tgt_end, | |
3198 | bool zero_len) | |
3199 | { | |
3200 | struct gomp_splay_tree_rev_lookup_data data; | |
3201 | data.key = NULL; | |
3202 | data.tgt_start = tgt_start; | |
3203 | data.tgt_end = tgt_end; | |
3204 | ||
3205 | if (tgt_start != tgt_end) | |
3206 | { | |
3207 | splay_tree_foreach_lazy (mem_map, gomp_splay_tree_rev_lookup, &data); | |
3208 | return data.key; | |
3209 | } | |
3210 | ||
3211 | data.tgt_end++; | |
3212 | splay_tree_foreach_lazy (mem_map, gomp_splay_tree_rev_lookup, &data); | |
3213 | if (data.key != NULL || zero_len) | |
3214 | return data.key; | |
3215 | data.tgt_end--; | |
3216 | ||
3217 | data.tgt_start--; | |
3218 | splay_tree_foreach_lazy (mem_map, gomp_splay_tree_rev_lookup, &data); | |
3219 | return data.key; | |
3220 | } | |
3221 | ||
3222 | struct cpy_data | |
3223 | { | |
3224 | uint64_t devaddr; | |
3225 | bool present, aligned; | |
3226 | }; | |
3227 | ||
3228 | ||
3229 | /* Search just mapped reverse-offload data; returns index if found, | |
3230 | otherwise >= n. */ | |
3231 | ||
3232 | static inline int | |
3233 | gomp_map_cdata_lookup_int (struct cpy_data *d, uint64_t *devaddrs, | |
3234 | unsigned short *kinds, uint64_t *sizes, size_t n, | |
3235 | uint64_t tgt_start, uint64_t tgt_end) | |
3236 | { | |
3237 | const bool short_mapkind = true; | |
3238 | const int typemask = short_mapkind ? 0xff : 0x7; | |
3239 | size_t i; | |
3240 | for (i = 0; i < n; i++) | |
3241 | { | |
3242 | bool is_struct = ((get_kind (short_mapkind, kinds, i) & typemask) | |
3243 | == GOMP_MAP_STRUCT); | |
3244 | uint64_t dev_end; | |
3245 | if (!is_struct) | |
3246 | dev_end = d[i].devaddr + sizes[i]; | |
3247 | else | |
3248 | { | |
3249 | if (i + sizes[i] < n) | |
3250 | dev_end = d[i + sizes[i]].devaddr + sizes[i + sizes[i]]; | |
3251 | else | |
3252 | dev_end = devaddrs[i + sizes[i]] + sizes[i + sizes[i]]; | |
3253 | } | |
3254 | if ((d[i].devaddr == tgt_start && dev_end == tgt_end) | |
3255 | || (dev_end > tgt_start && d[i].devaddr < tgt_end)) | |
3256 | break; | |
3257 | if (is_struct) | |
3258 | i += sizes[i]; | |
3259 | } | |
3260 | return i; | |
3261 | } | |
3262 | ||
3263 | static inline int | |
3264 | gomp_map_cdata_lookup (struct cpy_data *d, uint64_t *devaddrs, | |
3265 | unsigned short *kinds, uint64_t *sizes, | |
3266 | size_t n, uint64_t tgt_start, uint64_t tgt_end, | |
3267 | bool zero_len) | |
3268 | { | |
3269 | size_t i; | |
3270 | if (tgt_start != tgt_end) | |
3271 | return gomp_map_cdata_lookup_int (d, devaddrs, kinds, sizes, n, | |
3272 | tgt_start, tgt_end); | |
3273 | tgt_end++; | |
3274 | i = gomp_map_cdata_lookup_int (d, devaddrs, kinds, sizes, n, | |
3275 | tgt_start, tgt_end); | |
3276 | if (i < n || zero_len) | |
3277 | return i; | |
3278 | tgt_end--; | |
3279 | ||
3280 | tgt_start--; | |
3281 | return gomp_map_cdata_lookup_int (d, devaddrs, kinds, sizes, n, | |
3282 | tgt_start, tgt_end); | |
3283 | } | |
3284 | ||
131d18e9 | 3285 | /* Handle reverse offload. This is called by the device plugins for a |
ea4b23d9 TB |
3286 | reverse offload; it is not called if the outer target runs on the host. |
3287 | The mapping is simplified device-affecting constructs (except for target | |
3288 | with device(ancestor:1)) must not be encountered; in particular not | |
3289 | target (enter/exit) data. */ | |
131d18e9 TB |
3290 | |
3291 | void | |
ea4b23d9 TB |
3292 | gomp_target_rev (uint64_t fn_ptr, uint64_t mapnum, uint64_t devaddrs_ptr, |
3293 | uint64_t sizes_ptr, uint64_t kinds_ptr, int dev_num, | |
3294 | void (*dev_to_host_cpy) (void *, const void *, size_t, void*), | |
3295 | void (*host_to_dev_cpy) (void *, const void *, size_t, void*), | |
3296 | void *token) | |
131d18e9 | 3297 | { |
ea4b23d9 TB |
3298 | /* Return early if there is no offload code. */ |
3299 | if (sizeof (OFFLOAD_PLUGINS) == sizeof ("")) | |
3300 | return; | |
3301 | /* Currently, this fails because of calculate_firstprivate_requirements | |
3302 | below; it could be fixed but additional code needs to be updated to | |
3303 | handle 32bit hosts - thus, it is not worthwhile. */ | |
3304 | if (sizeof (void *) != sizeof (uint64_t)) | |
3305 | gomp_fatal ("Reverse offload of 32bit hosts not supported."); | |
3306 | ||
3307 | struct cpy_data *cdata = NULL; | |
3308 | uint64_t *devaddrs; | |
3309 | uint64_t *sizes; | |
3310 | unsigned short *kinds; | |
3311 | const bool short_mapkind = true; | |
3312 | const int typemask = short_mapkind ? 0xff : 0x7; | |
3313 | struct gomp_device_descr *devicep = resolve_device (dev_num, false); | |
3314 | ||
3315 | reverse_splay_tree_key n; | |
3316 | struct reverse_splay_tree_key_s k; | |
3317 | k.dev = fn_ptr; | |
3318 | ||
3319 | gomp_mutex_lock (&devicep->lock); | |
3320 | n = gomp_map_lookup_rev (&devicep->mem_map_rev, &k); | |
3321 | gomp_mutex_unlock (&devicep->lock); | |
3322 | ||
3323 | if (n == NULL) | |
3324 | gomp_fatal ("Cannot find reverse-offload function"); | |
3325 | void (*host_fn)() = (void (*)()) n->k->host_start; | |
3326 | ||
3327 | if (devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
3328 | { | |
3329 | devaddrs = (uint64_t *) (uintptr_t) devaddrs_ptr; | |
3330 | sizes = (uint64_t *) (uintptr_t) sizes_ptr; | |
3331 | kinds = (unsigned short *) (uintptr_t) kinds_ptr; | |
3332 | } | |
3333 | else | |
3334 | { | |
3335 | devaddrs = (uint64_t *) gomp_malloc (mapnum * sizeof (uint64_t)); | |
3336 | sizes = (uint64_t *) gomp_malloc (mapnum * sizeof (uint64_t)); | |
3337 | kinds = (unsigned short *) gomp_malloc (mapnum * sizeof (unsigned short)); | |
3338 | if (dev_to_host_cpy) | |
3339 | { | |
3340 | dev_to_host_cpy (devaddrs, (const void *) (uintptr_t) devaddrs_ptr, | |
3341 | mapnum * sizeof (uint64_t), token); | |
3342 | dev_to_host_cpy (sizes, (const void *) (uintptr_t) sizes_ptr, | |
3343 | mapnum * sizeof (uint64_t), token); | |
3344 | dev_to_host_cpy (kinds, (const void *) (uintptr_t) kinds_ptr, | |
3345 | mapnum * sizeof (unsigned short), token); | |
3346 | } | |
3347 | else | |
3348 | { | |
3349 | gomp_copy_dev2host (devicep, NULL, devaddrs, | |
3350 | (const void *) (uintptr_t) devaddrs_ptr, | |
3351 | mapnum * sizeof (uint64_t)); | |
3352 | gomp_copy_dev2host (devicep, NULL, sizes, | |
3353 | (const void *) (uintptr_t) sizes_ptr, | |
3354 | mapnum * sizeof (uint64_t)); | |
3355 | gomp_copy_dev2host (devicep, NULL, kinds, (const void *) (uintptr_t) kinds_ptr, | |
3356 | mapnum * sizeof (unsigned short)); | |
3357 | } | |
3358 | } | |
3359 | ||
3360 | size_t tgt_align = 0, tgt_size = 0; | |
3361 | ||
3362 | /* If actually executed on 32bit systems, the casts lead to wrong code; | |
3363 | but 32bit with offloading is not supported; see top of this function. */ | |
3364 | calculate_firstprivate_requirements (mapnum, (void *) (uintptr_t) sizes, | |
3365 | (void *) (uintptr_t) kinds, | |
3366 | &tgt_align, &tgt_size); | |
3367 | ||
3368 | if (tgt_align) | |
3369 | { | |
3370 | char *tgt = gomp_alloca (tgt_size + tgt_align - 1); | |
3371 | uintptr_t al = (uintptr_t) tgt & (tgt_align - 1); | |
3372 | if (al) | |
3373 | tgt += tgt_align - al; | |
3374 | tgt_size = 0; | |
3375 | for (uint64_t i = 0; i < mapnum; i++) | |
3376 | if (get_kind (short_mapkind, kinds, i) == GOMP_MAP_FIRSTPRIVATE | |
3377 | && devaddrs[i] != 0) | |
3378 | { | |
3379 | size_t align = (size_t) 1 << (kinds[i] >> 8); | |
3380 | tgt_size = (tgt_size + align - 1) & ~(align - 1); | |
3381 | if (devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
3382 | memcpy (tgt + tgt_size, (void *) (uintptr_t) devaddrs[i], | |
3383 | (size_t) sizes[i]); | |
3384 | else if (dev_to_host_cpy) | |
3385 | dev_to_host_cpy (tgt + tgt_size, (void *) (uintptr_t) devaddrs[i], | |
3386 | (size_t) sizes[i], token); | |
3387 | else | |
3388 | gomp_copy_dev2host (devicep, NULL, tgt + tgt_size, | |
3389 | (void *) (uintptr_t) devaddrs[i], | |
3390 | (size_t) sizes[i]); | |
3391 | devaddrs[i] = (uint64_t) (uintptr_t) tgt + tgt_size; | |
3392 | tgt_size = tgt_size + sizes[i]; | |
3393 | if ((devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
3394 | && i + 1 < mapnum | |
3395 | && ((get_kind (short_mapkind, kinds, i) & typemask) | |
3396 | == GOMP_MAP_ATTACH)) | |
3397 | { | |
3398 | *(uint64_t*) (uintptr_t) (devaddrs[i+1] + sizes[i+1]) | |
3399 | = (uint64_t) devaddrs[i]; | |
3400 | ++i; | |
3401 | } | |
3402 | } | |
3403 | } | |
3404 | ||
3405 | if (!(devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM)) | |
3406 | { | |
3407 | size_t j, struct_cpy = 0; | |
3408 | splay_tree_key n2; | |
3409 | cdata = gomp_alloca (sizeof (*cdata) * mapnum); | |
3410 | memset (cdata, '\0', sizeof (*cdata) * mapnum); | |
3411 | gomp_mutex_lock (&devicep->lock); | |
3412 | for (uint64_t i = 0; i < mapnum; i++) | |
3413 | { | |
3414 | if (devaddrs[i] == 0) | |
3415 | continue; | |
3416 | n = NULL; | |
3417 | int kind = get_kind (short_mapkind, kinds, i) & typemask; | |
3418 | switch (kind) | |
3419 | { | |
3420 | case GOMP_MAP_FIRSTPRIVATE: | |
3421 | case GOMP_MAP_FIRSTPRIVATE_INT: | |
3422 | continue; | |
3423 | ||
3424 | case GOMP_MAP_DELETE: | |
3425 | case GOMP_MAP_RELEASE: | |
3426 | case GOMP_MAP_DELETE_ZERO_LEN_ARRAY_SECTION: | |
3427 | /* Assume it is present; look it up - but ignore otherwise. */ | |
3428 | case GOMP_MAP_ALLOC: | |
3429 | case GOMP_MAP_FROM: | |
3430 | case GOMP_MAP_FORCE_ALLOC: | |
3431 | case GOMP_MAP_FORCE_FROM: | |
3432 | case GOMP_MAP_ALWAYS_FROM: | |
3433 | case GOMP_MAP_TO: | |
3434 | case GOMP_MAP_TOFROM: | |
3435 | case GOMP_MAP_FORCE_TO: | |
3436 | case GOMP_MAP_FORCE_TOFROM: | |
3437 | case GOMP_MAP_ALWAYS_TO: | |
3438 | case GOMP_MAP_ALWAYS_TOFROM: | |
3439 | case GOMP_MAP_ZERO_LEN_ARRAY_SECTION: | |
3440 | cdata[i].devaddr = devaddrs[i]; | |
3441 | bool zero_len = (kind == GOMP_MAP_DELETE_ZERO_LEN_ARRAY_SECTION | |
3442 | || kind == GOMP_MAP_ZERO_LEN_ARRAY_SECTION); | |
3443 | j = gomp_map_cdata_lookup (cdata, devaddrs, kinds, sizes, i, | |
3444 | devaddrs[i], | |
3445 | devaddrs[i] + sizes[i], zero_len); | |
3446 | if (j < i) | |
3447 | { | |
3448 | n2 = NULL; | |
3449 | cdata[i].present = true; | |
3450 | devaddrs[i] = devaddrs[j] + devaddrs[i] - cdata[j].devaddr; | |
3451 | } | |
3452 | else | |
3453 | { | |
3454 | n2 = gomp_map_rev_lookup (&devicep->mem_map, | |
3455 | devaddrs[i], | |
3456 | devaddrs[i] + sizes[i], zero_len); | |
3457 | cdata[i].present = n2 != NULL; | |
3458 | } | |
3459 | if (!cdata[i].present | |
3460 | && kind != GOMP_MAP_DELETE | |
3461 | && kind != GOMP_MAP_RELEASE | |
3462 | && kind != GOMP_MAP_DELETE_ZERO_LEN_ARRAY_SECTION) | |
3463 | { | |
3464 | cdata[i].aligned = true; | |
3465 | size_t align = (size_t) 1 << (kinds[i] >> 8); | |
3466 | devaddrs[i] | |
3467 | = (uint64_t) (uintptr_t) gomp_aligned_alloc (align, | |
3468 | sizes[i]); | |
3469 | } | |
3470 | else if (n2 != NULL) | |
3471 | devaddrs[i] = (n2->host_start + cdata[i].devaddr | |
3472 | - (n2->tgt->tgt_start + n2->tgt_offset)); | |
3473 | if (((!cdata[i].present || struct_cpy) | |
3474 | && (kind == GOMP_MAP_TO || kind == GOMP_MAP_TOFROM)) | |
3475 | || kind == GOMP_MAP_FORCE_TO | |
3476 | || kind == GOMP_MAP_FORCE_TOFROM | |
3477 | || kind == GOMP_MAP_ALWAYS_TO | |
3478 | || kind == GOMP_MAP_ALWAYS_TOFROM) | |
3479 | { | |
3480 | if (dev_to_host_cpy) | |
3481 | dev_to_host_cpy ((void *) (uintptr_t) devaddrs[i], | |
3482 | (void *) (uintptr_t) cdata[i].devaddr, | |
3483 | sizes[i], token); | |
3484 | else | |
3485 | gomp_copy_dev2host (devicep, NULL, | |
3486 | (void *) (uintptr_t) devaddrs[i], | |
3487 | (void *) (uintptr_t) cdata[i].devaddr, | |
3488 | sizes[i]); | |
3489 | } | |
3490 | if (struct_cpy) | |
3491 | struct_cpy--; | |
3492 | break; | |
3493 | case GOMP_MAP_ATTACH: | |
3494 | case GOMP_MAP_POINTER: | |
3495 | case GOMP_MAP_ALWAYS_POINTER: | |
3496 | n2 = gomp_map_rev_lookup (&devicep->mem_map, | |
3497 | devaddrs[i] + sizes[i], | |
3498 | devaddrs[i] + sizes[i] | |
3499 | + sizeof (void*), false); | |
3500 | cdata[i].present = n2 != NULL; | |
3501 | cdata[i].devaddr = devaddrs[i]; | |
3502 | if (n2) | |
3503 | devaddrs[i] = (n2->host_start + cdata[i].devaddr | |
3504 | - (n2->tgt->tgt_start + n2->tgt_offset)); | |
3505 | else | |
3506 | { | |
3507 | j = gomp_map_cdata_lookup (cdata, devaddrs, kinds, sizes, i, | |
3508 | devaddrs[i] + sizes[i], | |
3509 | devaddrs[i] + sizes[i] | |
3510 | + sizeof (void*), false); | |
3511 | if (j < i) | |
3512 | { | |
3513 | cdata[i].present = true; | |
3514 | devaddrs[i] = (devaddrs[j] + devaddrs[i] | |
3515 | - cdata[j].devaddr); | |
3516 | } | |
3517 | } | |
3518 | if (!cdata[i].present) | |
3519 | devaddrs[i] = (uintptr_t) gomp_malloc (sizeof (void*)); | |
3520 | /* Assume that when present, the pointer is already correct. */ | |
3521 | if (!n2) | |
3522 | *(uint64_t *) (uintptr_t) (devaddrs[i] + sizes[i]) | |
3523 | = devaddrs[i-1]; | |
3524 | break; | |
3525 | case GOMP_MAP_TO_PSET: | |
3526 | /* Assume that when present, the pointers are fine and no 'to:' | |
3527 | is required. */ | |
3528 | n2 = gomp_map_rev_lookup (&devicep->mem_map, | |
3529 | devaddrs[i], devaddrs[i] + sizes[i], | |
3530 | false); | |
3531 | cdata[i].present = n2 != NULL; | |
3532 | cdata[i].devaddr = devaddrs[i]; | |
3533 | if (n2) | |
3534 | devaddrs[i] = (n2->host_start + cdata[i].devaddr | |
3535 | - (n2->tgt->tgt_start + n2->tgt_offset)); | |
3536 | else | |
3537 | { | |
3538 | j = gomp_map_cdata_lookup (cdata, devaddrs, kinds, sizes, i, | |
3539 | devaddrs[i], | |
3540 | devaddrs[i] + sizes[i], false); | |
3541 | if (j < i) | |
3542 | { | |
3543 | cdata[i].present = true; | |
3544 | devaddrs[i] = (devaddrs[j] + devaddrs[i] | |
3545 | - cdata[j].devaddr); | |
3546 | } | |
3547 | } | |
3548 | if (!cdata[i].present) | |
3549 | { | |
3550 | cdata[i].aligned = true; | |
3551 | size_t align = (size_t) 1 << (kinds[i] >> 8); | |
3552 | devaddrs[i] | |
3553 | = (uint64_t) (uintptr_t) gomp_aligned_alloc (align, | |
3554 | sizes[i]); | |
3555 | if (dev_to_host_cpy) | |
3556 | dev_to_host_cpy ((void *) (uintptr_t) devaddrs[i], | |
3557 | (void *) (uintptr_t) cdata[i].devaddr, | |
3558 | sizes[i], token); | |
3559 | else | |
3560 | gomp_copy_dev2host (devicep, NULL, | |
3561 | (void *) (uintptr_t) devaddrs[i], | |
3562 | (void *) (uintptr_t) cdata[i].devaddr, | |
3563 | sizes[i]); | |
3564 | } | |
3565 | for (j = i + 1; j < mapnum; j++) | |
3566 | { | |
3567 | kind = get_kind (short_mapkind, kinds, j) & typemask; | |
3568 | if (!GOMP_MAP_ALWAYS_POINTER_P (kind) | |
3569 | && !GOMP_MAP_POINTER_P (kind)) | |
3570 | break; | |
3571 | if (devaddrs[j] < devaddrs[i]) | |
3572 | break; | |
3573 | if (cdata[i].present) | |
3574 | continue; | |
3575 | if (devaddrs[j] == 0) | |
3576 | { | |
3577 | *(uint64_t *) (uintptr_t) (devaddrs[i] + sizes[j]) = 0; | |
3578 | continue; | |
3579 | } | |
3580 | int k; | |
3581 | n2 = NULL; | |
3582 | cdata[i].present = true; | |
3583 | cdata[j].devaddr = devaddrs[j]; | |
3584 | k = gomp_map_cdata_lookup (cdata, devaddrs, kinds, sizes, j, | |
3585 | devaddrs[j], | |
3586 | devaddrs[j] + sizeof (void*), | |
3587 | false); | |
3588 | if (k < j) | |
3589 | devaddrs[j] = (devaddrs[k] + devaddrs[j] | |
3590 | - cdata[k].devaddr); | |
3591 | else | |
3592 | { | |
3593 | n2 = gomp_map_rev_lookup (&devicep->mem_map, | |
3594 | devaddrs[j], | |
3595 | devaddrs[j] + sizeof (void*), | |
3596 | false); | |
3597 | if (n2 == NULL) | |
3598 | { | |
3599 | gomp_mutex_unlock (&devicep->lock); | |
3600 | gomp_fatal ("Pointer target wasn't mapped"); | |
3601 | } | |
3602 | devaddrs[j] = (n2->host_start + cdata[j].devaddr | |
3603 | - (n2->tgt->tgt_start + n2->tgt_offset)); | |
3604 | } | |
3605 | *(void **) (uintptr_t) (devaddrs[i] + sizes[j]) | |
3606 | = (void *) (uintptr_t) devaddrs[j]; | |
3607 | } | |
3608 | i = j -1; | |
3609 | break; | |
3610 | case GOMP_MAP_STRUCT: | |
3611 | n2 = gomp_map_rev_lookup (&devicep->mem_map, devaddrs[i+1], | |
3612 | devaddrs[i + sizes[i]] | |
3613 | + sizes[i + sizes[i]], false); | |
3614 | cdata[i].present = n2 != NULL; | |
3615 | cdata[i].devaddr = devaddrs[i]; | |
3616 | struct_cpy = cdata[i].present ? 0 : sizes[i]; | |
3617 | if (!n2) | |
3618 | { | |
3619 | size_t sz = (size_t) (devaddrs[i + sizes[i]] | |
3620 | - devaddrs[i+1] | |
3621 | + sizes[i + sizes[i]]); | |
3622 | size_t align = (size_t) 1 << (kinds[i] >> 8); | |
3623 | cdata[i].aligned = true; | |
3624 | devaddrs[i] = (uintptr_t) gomp_aligned_alloc (align, sz); | |
3625 | devaddrs[i] -= devaddrs[i+1] - cdata[i].devaddr; | |
3626 | } | |
3627 | else | |
3628 | devaddrs[i] = (n2->host_start + cdata[i].devaddr | |
3629 | - (n2->tgt->tgt_start + n2->tgt_offset)); | |
3630 | break; | |
3631 | default: | |
3632 | gomp_mutex_unlock (&devicep->lock); | |
3633 | gomp_fatal ("gomp_target_rev unhandled kind 0x%.4x", kinds[i]); | |
3634 | } | |
3635 | } | |
3636 | gomp_mutex_unlock (&devicep->lock); | |
3637 | } | |
3638 | ||
3639 | host_fn (devaddrs); | |
3640 | ||
3641 | if (!(devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM)) | |
3642 | { | |
3643 | uint64_t struct_cpy = 0; | |
3644 | bool clean_struct = false; | |
3645 | for (uint64_t i = 0; i < mapnum; i++) | |
3646 | { | |
3647 | if (cdata[i].devaddr == 0) | |
3648 | continue; | |
3649 | int kind = get_kind (short_mapkind, kinds, i) & typemask; | |
3650 | bool copy = !cdata[i].present || struct_cpy; | |
3651 | switch (kind) | |
3652 | { | |
3653 | case GOMP_MAP_FORCE_FROM: | |
3654 | case GOMP_MAP_FORCE_TOFROM: | |
3655 | case GOMP_MAP_ALWAYS_FROM: | |
3656 | case GOMP_MAP_ALWAYS_TOFROM: | |
3657 | copy = true; | |
3658 | /* FALLTHRU */ | |
3659 | case GOMP_MAP_FROM: | |
3660 | case GOMP_MAP_TOFROM: | |
3661 | if (copy && host_to_dev_cpy) | |
3662 | host_to_dev_cpy ((void *) (uintptr_t) cdata[i].devaddr, | |
3663 | (void *) (uintptr_t) devaddrs[i], | |
3664 | sizes[i], token); | |
3665 | else if (copy) | |
3666 | gomp_copy_host2dev (devicep, NULL, | |
3667 | (void *) (uintptr_t) cdata[i].devaddr, | |
3668 | (void *) (uintptr_t) devaddrs[i], | |
3669 | sizes[i], false, NULL); | |
3670 | default: | |
3671 | break; | |
3672 | } | |
3673 | if (struct_cpy) | |
3674 | { | |
3675 | struct_cpy--; | |
3676 | continue; | |
3677 | } | |
3678 | if (kind == GOMP_MAP_STRUCT && !cdata[i].present) | |
3679 | { | |
3680 | clean_struct = true; | |
3681 | struct_cpy = sizes[i]; | |
3682 | } | |
3683 | else if (cdata[i].aligned) | |
3684 | gomp_aligned_free ((void *) (uintptr_t) devaddrs[i]); | |
3685 | else if (!cdata[i].present) | |
3686 | free ((void *) (uintptr_t) devaddrs[i]); | |
3687 | } | |
3688 | if (clean_struct) | |
3689 | for (uint64_t i = 0; i < mapnum; i++) | |
3690 | if (!cdata[i].present | |
3691 | && ((get_kind (short_mapkind, kinds, i) & typemask) | |
3692 | == GOMP_MAP_STRUCT)) | |
3693 | { | |
3694 | devaddrs[i] += cdata[i+1].devaddr - cdata[i].devaddr; | |
3695 | gomp_aligned_free ((void *) (uintptr_t) devaddrs[i]); | |
3696 | } | |
3697 | ||
3698 | free (devaddrs); | |
3699 | free (sizes); | |
3700 | free (kinds); | |
3701 | } | |
131d18e9 TB |
3702 | } |
3703 | ||
e01d41e5 | 3704 | /* Host fallback for GOMP_target_data{,_ext} routines. */ |
d9a6bd32 JJ |
3705 | |
3706 | static void | |
1bfc07d1 | 3707 | gomp_target_data_fallback (struct gomp_device_descr *devicep) |
d9a6bd32 JJ |
3708 | { |
3709 | struct gomp_task_icv *icv = gomp_icv (false); | |
1bfc07d1 KCY |
3710 | |
3711 | if (gomp_target_offload_var == GOMP_TARGET_OFFLOAD_MANDATORY | |
3712 | && devicep != NULL) | |
3713 | gomp_fatal ("OMP_TARGET_OFFLOAD is set to MANDATORY, but device cannot " | |
3714 | "be used for offloading"); | |
3715 | ||
d9a6bd32 JJ |
3716 | if (icv->target_data) |
3717 | { | |
3718 | /* Even when doing a host fallback, if there are any active | |
3719 | #pragma omp target data constructs, need to remember the | |
3720 | new #pragma omp target data, otherwise GOMP_target_end_data | |
3721 | would get out of sync. */ | |
3722 | struct target_mem_desc *tgt | |
3723 | = gomp_map_vars (NULL, 0, NULL, NULL, NULL, NULL, false, | |
275c736e | 3724 | NULL, GOMP_MAP_VARS_DATA); |
d9a6bd32 JJ |
3725 | tgt->prev = icv->target_data; |
3726 | icv->target_data = tgt; | |
3727 | } | |
3728 | } | |
3729 | ||
acf0174b | 3730 | void |
128b26dc | 3731 | GOMP_target_data (int device, const void *unused, size_t mapnum, |
acf0174b JJ |
3732 | void **hostaddrs, size_t *sizes, unsigned char *kinds) |
3733 | { | |
1158fe43 | 3734 | struct gomp_device_descr *devicep = resolve_device (device, true); |
41dbbb37 TS |
3735 | |
3736 | if (devicep == NULL | |
b2b40051 MJ |
3737 | || !(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
3738 | || (devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM)) | |
1bfc07d1 | 3739 | return gomp_target_data_fallback (devicep); |
41dbbb37 | 3740 | |
1df3f842 | 3741 | struct target_mem_desc *tgt |
41dbbb37 | 3742 | = gomp_map_vars (devicep, mapnum, hostaddrs, NULL, sizes, kinds, false, |
275c736e | 3743 | NULL, GOMP_MAP_VARS_DATA); |
d9a6bd32 JJ |
3744 | struct gomp_task_icv *icv = gomp_icv (true); |
3745 | tgt->prev = icv->target_data; | |
3746 | icv->target_data = tgt; | |
3747 | } | |
3748 | ||
3749 | void | |
e01d41e5 JJ |
3750 | GOMP_target_data_ext (int device, size_t mapnum, void **hostaddrs, |
3751 | size_t *sizes, unsigned short *kinds) | |
d9a6bd32 | 3752 | { |
1158fe43 | 3753 | struct gomp_device_descr *devicep = resolve_device (device, true); |
d9a6bd32 JJ |
3754 | |
3755 | if (devicep == NULL | |
b2b40051 MJ |
3756 | || !(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
3757 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
1bfc07d1 | 3758 | return gomp_target_data_fallback (devicep); |
d9a6bd32 JJ |
3759 | |
3760 | struct target_mem_desc *tgt | |
3761 | = gomp_map_vars (devicep, mapnum, hostaddrs, NULL, sizes, kinds, true, | |
275c736e | 3762 | NULL, GOMP_MAP_VARS_DATA); |
1df3f842 JJ |
3763 | struct gomp_task_icv *icv = gomp_icv (true); |
3764 | tgt->prev = icv->target_data; | |
3765 | icv->target_data = tgt; | |
acf0174b JJ |
3766 | } |
3767 | ||
3768 | void | |
3769 | GOMP_target_end_data (void) | |
3770 | { | |
1df3f842 JJ |
3771 | struct gomp_task_icv *icv = gomp_icv (false); |
3772 | if (icv->target_data) | |
3773 | { | |
3774 | struct target_mem_desc *tgt = icv->target_data; | |
3775 | icv->target_data = tgt->prev; | |
275c736e | 3776 | gomp_unmap_vars (tgt, true, NULL); |
1df3f842 | 3777 | } |
acf0174b JJ |
3778 | } |
3779 | ||
3780 | void | |
128b26dc | 3781 | GOMP_target_update (int device, const void *unused, size_t mapnum, |
acf0174b JJ |
3782 | void **hostaddrs, size_t *sizes, unsigned char *kinds) |
3783 | { | |
1158fe43 | 3784 | struct gomp_device_descr *devicep = resolve_device (device, true); |
41dbbb37 TS |
3785 | |
3786 | if (devicep == NULL | |
b2b40051 MJ |
3787 | || !(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
3788 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
1df3f842 JJ |
3789 | return; |
3790 | ||
d9a6bd32 JJ |
3791 | gomp_update (devicep, mapnum, hostaddrs, sizes, kinds, false); |
3792 | } | |
3793 | ||
3794 | void | |
e01d41e5 JJ |
3795 | GOMP_target_update_ext (int device, size_t mapnum, void **hostaddrs, |
3796 | size_t *sizes, unsigned short *kinds, | |
3797 | unsigned int flags, void **depend) | |
d9a6bd32 | 3798 | { |
1158fe43 | 3799 | struct gomp_device_descr *devicep = resolve_device (device, true); |
d9a6bd32 JJ |
3800 | |
3801 | /* If there are depend clauses, but nowait is not present, | |
3802 | block the parent task until the dependencies are resolved | |
3803 | and then just continue with the rest of the function as if it | |
3804 | is a merged task. Until we are able to schedule task during | |
3805 | variable mapping or unmapping, ignore nowait if depend clauses | |
3806 | are not present. */ | |
3807 | if (depend != NULL) | |
3808 | { | |
3809 | struct gomp_thread *thr = gomp_thread (); | |
3810 | if (thr->task && thr->task->depend_hash) | |
3811 | { | |
3812 | if ((flags & GOMP_TARGET_FLAG_NOWAIT) | |
3813 | && thr->ts.team | |
3814 | && !thr->task->final_task) | |
3815 | { | |
e4606348 JJ |
3816 | if (gomp_create_target_task (devicep, (void (*) (void *)) NULL, |
3817 | mapnum, hostaddrs, sizes, kinds, | |
3818 | flags | GOMP_TARGET_FLAG_UPDATE, | |
b2b40051 | 3819 | depend, NULL, GOMP_TARGET_TASK_DATA)) |
e4606348 JJ |
3820 | return; |
3821 | } | |
3822 | else | |
3823 | { | |
3824 | struct gomp_team *team = thr->ts.team; | |
3825 | /* If parallel or taskgroup has been cancelled, don't start new | |
3826 | tasks. */ | |
28567c40 JJ |
3827 | if (__builtin_expect (gomp_cancel_var, 0) && team) |
3828 | { | |
3829 | if (gomp_team_barrier_cancelled (&team->barrier)) | |
3830 | return; | |
3831 | if (thr->task->taskgroup) | |
3832 | { | |
3833 | if (thr->task->taskgroup->cancelled) | |
3834 | return; | |
3835 | if (thr->task->taskgroup->workshare | |
3836 | && thr->task->taskgroup->prev | |
3837 | && thr->task->taskgroup->prev->cancelled) | |
3838 | return; | |
3839 | } | |
3840 | } | |
e4606348 JJ |
3841 | |
3842 | gomp_task_maybe_wait_for_dependencies (depend); | |
d9a6bd32 | 3843 | } |
d9a6bd32 JJ |
3844 | } |
3845 | } | |
3846 | ||
3847 | if (devicep == NULL | |
b2b40051 MJ |
3848 | || !(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
3849 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
d9a6bd32 JJ |
3850 | return; |
3851 | ||
3852 | struct gomp_thread *thr = gomp_thread (); | |
3853 | struct gomp_team *team = thr->ts.team; | |
3854 | /* If parallel or taskgroup has been cancelled, don't start new tasks. */ | |
28567c40 JJ |
3855 | if (__builtin_expect (gomp_cancel_var, 0) && team) |
3856 | { | |
3857 | if (gomp_team_barrier_cancelled (&team->barrier)) | |
3858 | return; | |
3859 | if (thr->task->taskgroup) | |
3860 | { | |
3861 | if (thr->task->taskgroup->cancelled) | |
3862 | return; | |
3863 | if (thr->task->taskgroup->workshare | |
3864 | && thr->task->taskgroup->prev | |
3865 | && thr->task->taskgroup->prev->cancelled) | |
3866 | return; | |
3867 | } | |
3868 | } | |
d9a6bd32 JJ |
3869 | |
3870 | gomp_update (devicep, mapnum, hostaddrs, sizes, kinds, true); | |
3871 | } | |
3872 | ||
3873 | static void | |
3874 | gomp_exit_data (struct gomp_device_descr *devicep, size_t mapnum, | |
275c736e CLT |
3875 | void **hostaddrs, size_t *sizes, unsigned short *kinds, |
3876 | htab_t *refcount_set) | |
d9a6bd32 JJ |
3877 | { |
3878 | const int typemask = 0xff; | |
3879 | size_t i; | |
41dbbb37 | 3880 | gomp_mutex_lock (&devicep->lock); |
d84ffc0a IV |
3881 | if (devicep->state == GOMP_DEVICE_FINALIZED) |
3882 | { | |
3883 | gomp_mutex_unlock (&devicep->lock); | |
3884 | return; | |
3885 | } | |
3886 | ||
9e628024 CLT |
3887 | for (i = 0; i < mapnum; i++) |
3888 | if ((kinds[i] & typemask) == GOMP_MAP_DETACH) | |
3889 | { | |
3890 | struct splay_tree_key_s cur_node; | |
3891 | cur_node.host_start = (uintptr_t) hostaddrs[i]; | |
3892 | cur_node.host_end = cur_node.host_start + sizeof (void *); | |
3893 | splay_tree_key n = splay_tree_lookup (&devicep->mem_map, &cur_node); | |
3894 | ||
3895 | if (n) | |
3896 | gomp_detach_pointer (devicep, NULL, n, (uintptr_t) hostaddrs[i], | |
3897 | false, NULL); | |
3898 | } | |
3899 | ||
275c736e CLT |
3900 | int nrmvars = 0; |
3901 | splay_tree_key remove_vars[mapnum]; | |
3902 | ||
d9a6bd32 JJ |
3903 | for (i = 0; i < mapnum; i++) |
3904 | { | |
3905 | struct splay_tree_key_s cur_node; | |
3906 | unsigned char kind = kinds[i] & typemask; | |
3907 | switch (kind) | |
3908 | { | |
3909 | case GOMP_MAP_FROM: | |
3910 | case GOMP_MAP_ALWAYS_FROM: | |
3911 | case GOMP_MAP_DELETE: | |
3912 | case GOMP_MAP_RELEASE: | |
3913 | case GOMP_MAP_ZERO_LEN_ARRAY_SECTION: | |
3914 | case GOMP_MAP_DELETE_ZERO_LEN_ARRAY_SECTION: | |
3915 | cur_node.host_start = (uintptr_t) hostaddrs[i]; | |
3916 | cur_node.host_end = cur_node.host_start + sizes[i]; | |
3917 | splay_tree_key k = (kind == GOMP_MAP_DELETE_ZERO_LEN_ARRAY_SECTION | |
3918 | || kind == GOMP_MAP_ZERO_LEN_ARRAY_SECTION) | |
e01d41e5 | 3919 | ? gomp_map_0len_lookup (&devicep->mem_map, &cur_node) |
d9a6bd32 JJ |
3920 | : splay_tree_lookup (&devicep->mem_map, &cur_node); |
3921 | if (!k) | |
3922 | continue; | |
3923 | ||
275c736e CLT |
3924 | bool delete_p = (kind == GOMP_MAP_DELETE |
3925 | || kind == GOMP_MAP_DELETE_ZERO_LEN_ARRAY_SECTION); | |
3926 | bool do_copy, do_remove; | |
3927 | gomp_decrement_refcount (k, refcount_set, delete_p, &do_copy, | |
3928 | &do_remove); | |
d9a6bd32 | 3929 | |
275c736e | 3930 | if ((kind == GOMP_MAP_FROM && do_copy) |
d9a6bd32 | 3931 | || kind == GOMP_MAP_ALWAYS_FROM) |
6c039937 CLT |
3932 | { |
3933 | if (k->aux && k->aux->attach_count) | |
3934 | { | |
3935 | /* We have to be careful not to overwrite still attached | |
3936 | pointers during the copyback to host. */ | |
3937 | uintptr_t addr = k->host_start; | |
3938 | while (addr < k->host_end) | |
3939 | { | |
3940 | size_t i = (addr - k->host_start) / sizeof (void *); | |
3941 | if (k->aux->attach_count[i] == 0) | |
3942 | gomp_copy_dev2host (devicep, NULL, (void *) addr, | |
3943 | (void *) (k->tgt->tgt_start | |
3944 | + k->tgt_offset | |
3945 | + addr - k->host_start), | |
3946 | sizeof (void *)); | |
3947 | addr += sizeof (void *); | |
3948 | } | |
3949 | } | |
3950 | else | |
3951 | gomp_copy_dev2host (devicep, NULL, (void *) cur_node.host_start, | |
3952 | (void *) (k->tgt->tgt_start + k->tgt_offset | |
3953 | + cur_node.host_start | |
3954 | - k->host_start), | |
3955 | cur_node.host_end - cur_node.host_start); | |
3956 | } | |
275c736e CLT |
3957 | |
3958 | /* Structure elements lists are removed altogether at once, which | |
3959 | may cause immediate deallocation of the target_mem_desc, causing | |
3960 | errors if we still have following element siblings to copy back. | |
3961 | While we're at it, it also seems more disciplined to simply | |
3962 | queue all removals together for processing below. | |
3963 | ||
3964 | Structured block unmapping (i.e. gomp_unmap_vars_internal) should | |
3965 | not have this problem, since they maintain an additional | |
3966 | tgt->refcount = 1 reference to the target_mem_desc to start with. | |
3967 | */ | |
3968 | if (do_remove) | |
3969 | remove_vars[nrmvars++] = k; | |
9e628024 | 3970 | break; |
d9a6bd32 | 3971 | |
9e628024 | 3972 | case GOMP_MAP_DETACH: |
d9a6bd32 JJ |
3973 | break; |
3974 | default: | |
3975 | gomp_mutex_unlock (&devicep->lock); | |
3976 | gomp_fatal ("GOMP_target_enter_exit_data unhandled kind 0x%.2x", | |
3977 | kind); | |
3978 | } | |
3979 | } | |
3980 | ||
275c736e CLT |
3981 | for (int i = 0; i < nrmvars; i++) |
3982 | gomp_remove_var (devicep, remove_vars[i]); | |
3983 | ||
41dbbb37 | 3984 | gomp_mutex_unlock (&devicep->lock); |
d9a6bd32 | 3985 | } |
41dbbb37 | 3986 | |
d9a6bd32 JJ |
3987 | void |
3988 | GOMP_target_enter_exit_data (int device, size_t mapnum, void **hostaddrs, | |
3989 | size_t *sizes, unsigned short *kinds, | |
3990 | unsigned int flags, void **depend) | |
3991 | { | |
1158fe43 | 3992 | struct gomp_device_descr *devicep = resolve_device (device, true); |
d9a6bd32 JJ |
3993 | |
3994 | /* If there are depend clauses, but nowait is not present, | |
3995 | block the parent task until the dependencies are resolved | |
3996 | and then just continue with the rest of the function as if it | |
3997 | is a merged task. Until we are able to schedule task during | |
3998 | variable mapping or unmapping, ignore nowait if depend clauses | |
3999 | are not present. */ | |
4000 | if (depend != NULL) | |
4001 | { | |
4002 | struct gomp_thread *thr = gomp_thread (); | |
4003 | if (thr->task && thr->task->depend_hash) | |
4004 | { | |
4005 | if ((flags & GOMP_TARGET_FLAG_NOWAIT) | |
4006 | && thr->ts.team | |
4007 | && !thr->task->final_task) | |
4008 | { | |
e4606348 JJ |
4009 | if (gomp_create_target_task (devicep, (void (*) (void *)) NULL, |
4010 | mapnum, hostaddrs, sizes, kinds, | |
b2b40051 | 4011 | flags, depend, NULL, |
e4606348 JJ |
4012 | GOMP_TARGET_TASK_DATA)) |
4013 | return; | |
4014 | } | |
4015 | else | |
4016 | { | |
4017 | struct gomp_team *team = thr->ts.team; | |
4018 | /* If parallel or taskgroup has been cancelled, don't start new | |
4019 | tasks. */ | |
28567c40 JJ |
4020 | if (__builtin_expect (gomp_cancel_var, 0) && team) |
4021 | { | |
4022 | if (gomp_team_barrier_cancelled (&team->barrier)) | |
4023 | return; | |
4024 | if (thr->task->taskgroup) | |
4025 | { | |
4026 | if (thr->task->taskgroup->cancelled) | |
4027 | return; | |
4028 | if (thr->task->taskgroup->workshare | |
4029 | && thr->task->taskgroup->prev | |
4030 | && thr->task->taskgroup->prev->cancelled) | |
4031 | return; | |
4032 | } | |
4033 | } | |
e4606348 JJ |
4034 | |
4035 | gomp_task_maybe_wait_for_dependencies (depend); | |
d9a6bd32 | 4036 | } |
d9a6bd32 JJ |
4037 | } |
4038 | } | |
4039 | ||
4040 | if (devicep == NULL | |
b2b40051 MJ |
4041 | || !(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
4042 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
d9a6bd32 JJ |
4043 | return; |
4044 | ||
4045 | struct gomp_thread *thr = gomp_thread (); | |
4046 | struct gomp_team *team = thr->ts.team; | |
4047 | /* If parallel or taskgroup has been cancelled, don't start new tasks. */ | |
28567c40 JJ |
4048 | if (__builtin_expect (gomp_cancel_var, 0) && team) |
4049 | { | |
4050 | if (gomp_team_barrier_cancelled (&team->barrier)) | |
4051 | return; | |
4052 | if (thr->task->taskgroup) | |
4053 | { | |
4054 | if (thr->task->taskgroup->cancelled) | |
4055 | return; | |
4056 | if (thr->task->taskgroup->workshare | |
4057 | && thr->task->taskgroup->prev | |
4058 | && thr->task->taskgroup->prev->cancelled) | |
4059 | return; | |
4060 | } | |
4061 | } | |
d9a6bd32 | 4062 | |
275c736e CLT |
4063 | htab_t refcount_set = htab_create (mapnum); |
4064 | ||
689418b9 TB |
4065 | /* The variables are mapped separately such that they can be released |
4066 | independently. */ | |
4067 | size_t i, j; | |
d9a6bd32 JJ |
4068 | if ((flags & GOMP_TARGET_FLAG_EXIT_DATA) == 0) |
4069 | for (i = 0; i < mapnum; i++) | |
4070 | if ((kinds[i] & 0xff) == GOMP_MAP_STRUCT) | |
4071 | { | |
4072 | gomp_map_vars (devicep, sizes[i] + 1, &hostaddrs[i], NULL, &sizes[i], | |
275c736e CLT |
4073 | &kinds[i], true, &refcount_set, |
4074 | GOMP_MAP_VARS_ENTER_DATA); | |
d9a6bd32 JJ |
4075 | i += sizes[i]; |
4076 | } | |
689418b9 TB |
4077 | else if ((kinds[i] & 0xff) == GOMP_MAP_TO_PSET) |
4078 | { | |
4079 | for (j = i + 1; j < mapnum; j++) | |
972da557 TB |
4080 | if (!GOMP_MAP_POINTER_P (get_kind (true, kinds, j) & 0xff) |
4081 | && !GOMP_MAP_ALWAYS_POINTER_P (get_kind (true, kinds, j) & 0xff)) | |
689418b9 TB |
4082 | break; |
4083 | gomp_map_vars (devicep, j-i, &hostaddrs[i], NULL, &sizes[i], | |
275c736e CLT |
4084 | &kinds[i], true, &refcount_set, |
4085 | GOMP_MAP_VARS_ENTER_DATA); | |
689418b9 TB |
4086 | i += j - i - 1; |
4087 | } | |
9e628024 CLT |
4088 | else if (i + 1 < mapnum && (kinds[i + 1] & 0xff) == GOMP_MAP_ATTACH) |
4089 | { | |
4090 | /* An attach operation must be processed together with the mapped | |
4091 | base-pointer list item. */ | |
4092 | gomp_map_vars (devicep, 2, &hostaddrs[i], NULL, &sizes[i], &kinds[i], | |
275c736e | 4093 | true, &refcount_set, GOMP_MAP_VARS_ENTER_DATA); |
9e628024 CLT |
4094 | i += 1; |
4095 | } | |
d9a6bd32 JJ |
4096 | else |
4097 | gomp_map_vars (devicep, 1, &hostaddrs[i], NULL, &sizes[i], &kinds[i], | |
275c736e | 4098 | true, &refcount_set, GOMP_MAP_VARS_ENTER_DATA); |
d9a6bd32 | 4099 | else |
275c736e CLT |
4100 | gomp_exit_data (devicep, mapnum, hostaddrs, sizes, kinds, &refcount_set); |
4101 | htab_free (refcount_set); | |
d9a6bd32 JJ |
4102 | } |
4103 | ||
e4606348 | 4104 | bool |
d9a6bd32 JJ |
4105 | gomp_target_task_fn (void *data) |
4106 | { | |
4107 | struct gomp_target_task *ttask = (struct gomp_target_task *) data; | |
e4606348 JJ |
4108 | struct gomp_device_descr *devicep = ttask->devicep; |
4109 | ||
d9a6bd32 JJ |
4110 | if (ttask->fn != NULL) |
4111 | { | |
d84ffc0a | 4112 | void *fn_addr; |
e4606348 | 4113 | if (devicep == NULL |
d84ffc0a | 4114 | || !(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
b2b40051 MJ |
4115 | || !(fn_addr = gomp_get_target_fn_addr (devicep, ttask->fn)) |
4116 | || (devicep->can_run_func && !devicep->can_run_func (fn_addr))) | |
e4606348 JJ |
4117 | { |
4118 | ttask->state = GOMP_TARGET_TASK_FALLBACK; | |
aea72386 JJ |
4119 | gomp_target_fallback (ttask->fn, ttask->hostaddrs, devicep, |
4120 | ttask->args); | |
e4606348 JJ |
4121 | return false; |
4122 | } | |
4123 | ||
4124 | if (ttask->state == GOMP_TARGET_TASK_FINISHED) | |
4125 | { | |
b2b40051 | 4126 | if (ttask->tgt) |
275c736e | 4127 | gomp_unmap_vars (ttask->tgt, true, NULL); |
e4606348 JJ |
4128 | return false; |
4129 | } | |
4130 | ||
b2b40051 MJ |
4131 | void *actual_arguments; |
4132 | if (devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
4133 | { | |
4134 | ttask->tgt = NULL; | |
b2b40051 MJ |
4135 | actual_arguments = ttask->hostaddrs; |
4136 | } | |
4137 | else | |
4138 | { | |
4139 | ttask->tgt = gomp_map_vars (devicep, ttask->mapnum, ttask->hostaddrs, | |
4140 | NULL, ttask->sizes, ttask->kinds, true, | |
275c736e | 4141 | NULL, GOMP_MAP_VARS_TARGET); |
b2b40051 MJ |
4142 | actual_arguments = (void *) ttask->tgt->tgt_start; |
4143 | } | |
e4606348 JJ |
4144 | ttask->state = GOMP_TARGET_TASK_READY_TO_RUN; |
4145 | ||
001ab12e | 4146 | assert (devicep->async_run_func); |
b2b40051 MJ |
4147 | devicep->async_run_func (devicep->target_id, fn_addr, actual_arguments, |
4148 | ttask->args, (void *) ttask); | |
e4606348 | 4149 | return true; |
d9a6bd32 | 4150 | } |
e4606348 | 4151 | else if (devicep == NULL |
b2b40051 MJ |
4152 | || !(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
4153 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
e4606348 | 4154 | return false; |
d9a6bd32 JJ |
4155 | |
4156 | size_t i; | |
4157 | if (ttask->flags & GOMP_TARGET_FLAG_UPDATE) | |
e4606348 | 4158 | gomp_update (devicep, ttask->mapnum, ttask->hostaddrs, ttask->sizes, |
d9a6bd32 | 4159 | ttask->kinds, true); |
d9a6bd32 | 4160 | else |
275c736e CLT |
4161 | { |
4162 | htab_t refcount_set = htab_create (ttask->mapnum); | |
4163 | if ((ttask->flags & GOMP_TARGET_FLAG_EXIT_DATA) == 0) | |
4164 | for (i = 0; i < ttask->mapnum; i++) | |
4165 | if ((ttask->kinds[i] & 0xff) == GOMP_MAP_STRUCT) | |
4166 | { | |
4167 | gomp_map_vars (devicep, ttask->sizes[i] + 1, &ttask->hostaddrs[i], | |
4168 | NULL, &ttask->sizes[i], &ttask->kinds[i], true, | |
4169 | &refcount_set, GOMP_MAP_VARS_ENTER_DATA); | |
4170 | i += ttask->sizes[i]; | |
4171 | } | |
4172 | else | |
4173 | gomp_map_vars (devicep, 1, &ttask->hostaddrs[i], NULL, &ttask->sizes[i], | |
4174 | &ttask->kinds[i], true, &refcount_set, | |
4175 | GOMP_MAP_VARS_ENTER_DATA); | |
4176 | else | |
4177 | gomp_exit_data (devicep, ttask->mapnum, ttask->hostaddrs, ttask->sizes, | |
4178 | ttask->kinds, &refcount_set); | |
4179 | htab_free (refcount_set); | |
4180 | } | |
e4606348 | 4181 | return false; |
acf0174b JJ |
4182 | } |
4183 | ||
4184 | void | |
4185 | GOMP_teams (unsigned int num_teams, unsigned int thread_limit) | |
4186 | { | |
4187 | if (thread_limit) | |
4188 | { | |
4189 | struct gomp_task_icv *icv = gomp_icv (true); | |
4190 | icv->thread_limit_var | |
4191 | = thread_limit > INT_MAX ? UINT_MAX : thread_limit; | |
4192 | } | |
4193 | (void) num_teams; | |
4194 | } | |
1df3f842 | 4195 | |
7d6da11f JJ |
4196 | bool |
4197 | GOMP_teams4 (unsigned int num_teams_low, unsigned int num_teams_high, | |
4198 | unsigned int thread_limit, bool first) | |
4199 | { | |
4200 | struct gomp_thread *thr = gomp_thread (); | |
4201 | if (first) | |
4202 | { | |
4203 | if (thread_limit) | |
4204 | { | |
4205 | struct gomp_task_icv *icv = gomp_icv (true); | |
4206 | icv->thread_limit_var | |
4207 | = thread_limit > INT_MAX ? UINT_MAX : thread_limit; | |
4208 | } | |
4209 | (void) num_teams_high; | |
4210 | if (num_teams_low == 0) | |
4211 | num_teams_low = 1; | |
4212 | thr->num_teams = num_teams_low - 1; | |
4213 | thr->team_num = 0; | |
4214 | } | |
4215 | else if (thr->team_num == thr->num_teams) | |
4216 | return false; | |
4217 | else | |
4218 | ++thr->team_num; | |
4219 | return true; | |
4220 | } | |
4221 | ||
d9a6bd32 JJ |
4222 | void * |
4223 | omp_target_alloc (size_t size, int device_num) | |
4224 | { | |
1158fe43 JJ |
4225 | if (device_num == omp_initial_device |
4226 | || device_num == gomp_get_num_devices ()) | |
d9a6bd32 JJ |
4227 | return malloc (size); |
4228 | ||
1158fe43 | 4229 | struct gomp_device_descr *devicep = resolve_device (device_num, false); |
d9a6bd32 JJ |
4230 | if (devicep == NULL) |
4231 | return NULL; | |
4232 | ||
b2b40051 MJ |
4233 | if (!(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
4234 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
d9a6bd32 JJ |
4235 | return malloc (size); |
4236 | ||
4237 | gomp_mutex_lock (&devicep->lock); | |
4238 | void *ret = devicep->alloc_func (devicep->target_id, size); | |
4239 | gomp_mutex_unlock (&devicep->lock); | |
4240 | return ret; | |
4241 | } | |
4242 | ||
4243 | void | |
4244 | omp_target_free (void *device_ptr, int device_num) | |
4245 | { | |
1158fe43 JJ |
4246 | if (device_num == omp_initial_device |
4247 | || device_num == gomp_get_num_devices ()) | |
d9a6bd32 JJ |
4248 | { |
4249 | free (device_ptr); | |
4250 | return; | |
4251 | } | |
4252 | ||
1158fe43 JJ |
4253 | struct gomp_device_descr *devicep = resolve_device (device_num, false); |
4254 | if (devicep == NULL || device_ptr == NULL) | |
d9a6bd32 JJ |
4255 | return; |
4256 | ||
b2b40051 MJ |
4257 | if (!(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
4258 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
d9a6bd32 JJ |
4259 | { |
4260 | free (device_ptr); | |
4261 | return; | |
4262 | } | |
4263 | ||
4264 | gomp_mutex_lock (&devicep->lock); | |
6ce13072 | 4265 | gomp_free_device_memory (devicep, device_ptr); |
d9a6bd32 JJ |
4266 | gomp_mutex_unlock (&devicep->lock); |
4267 | } | |
4268 | ||
4269 | int | |
28567c40 | 4270 | omp_target_is_present (const void *ptr, int device_num) |
d9a6bd32 | 4271 | { |
1158fe43 JJ |
4272 | if (device_num == omp_initial_device |
4273 | || device_num == gomp_get_num_devices ()) | |
d9a6bd32 JJ |
4274 | return 1; |
4275 | ||
1158fe43 | 4276 | struct gomp_device_descr *devicep = resolve_device (device_num, false); |
d9a6bd32 JJ |
4277 | if (devicep == NULL) |
4278 | return 0; | |
4279 | ||
1158fe43 JJ |
4280 | if (ptr == NULL) |
4281 | return 1; | |
4282 | ||
b2b40051 MJ |
4283 | if (!(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
4284 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
d9a6bd32 JJ |
4285 | return 1; |
4286 | ||
4287 | gomp_mutex_lock (&devicep->lock); | |
4288 | struct splay_tree_s *mem_map = &devicep->mem_map; | |
4289 | struct splay_tree_key_s cur_node; | |
4290 | ||
4291 | cur_node.host_start = (uintptr_t) ptr; | |
4292 | cur_node.host_end = cur_node.host_start; | |
e01d41e5 | 4293 | splay_tree_key n = gomp_map_0len_lookup (mem_map, &cur_node); |
d9a6bd32 JJ |
4294 | int ret = n != NULL; |
4295 | gomp_mutex_unlock (&devicep->lock); | |
4296 | return ret; | |
4297 | } | |
4298 | ||
6c420193 MV |
4299 | static int |
4300 | omp_target_memcpy_check (int dst_device_num, int src_device_num, | |
4301 | struct gomp_device_descr **dst_devicep, | |
4302 | struct gomp_device_descr **src_devicep) | |
d9a6bd32 | 4303 | { |
1158fe43 JJ |
4304 | if (dst_device_num != gomp_get_num_devices () |
4305 | /* Above gomp_get_num_devices has to be called unconditionally. */ | |
4306 | && dst_device_num != omp_initial_device) | |
d9a6bd32 | 4307 | { |
1158fe43 | 4308 | *dst_devicep = resolve_device (dst_device_num, false); |
6c420193 | 4309 | if (*dst_devicep == NULL) |
d9a6bd32 JJ |
4310 | return EINVAL; |
4311 | ||
6c420193 MV |
4312 | if (!((*dst_devicep)->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
4313 | || (*dst_devicep)->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
4314 | *dst_devicep = NULL; | |
d9a6bd32 | 4315 | } |
6c420193 | 4316 | |
1158fe43 JJ |
4317 | if (src_device_num != num_devices_openmp |
4318 | && src_device_num != omp_initial_device) | |
d9a6bd32 | 4319 | { |
1158fe43 | 4320 | *src_devicep = resolve_device (src_device_num, false); |
6c420193 | 4321 | if (*src_devicep == NULL) |
d9a6bd32 JJ |
4322 | return EINVAL; |
4323 | ||
6c420193 MV |
4324 | if (!((*src_devicep)->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
4325 | || (*src_devicep)->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
4326 | *src_devicep = NULL; | |
d9a6bd32 | 4327 | } |
6c420193 MV |
4328 | |
4329 | return 0; | |
4330 | } | |
4331 | ||
4332 | static int | |
4333 | omp_target_memcpy_copy (void *dst, const void *src, size_t length, | |
4334 | size_t dst_offset, size_t src_offset, | |
4335 | struct gomp_device_descr *dst_devicep, | |
4336 | struct gomp_device_descr *src_devicep) | |
4337 | { | |
4338 | bool ret; | |
d9a6bd32 JJ |
4339 | if (src_devicep == NULL && dst_devicep == NULL) |
4340 | { | |
4341 | memcpy ((char *) dst + dst_offset, (char *) src + src_offset, length); | |
4342 | return 0; | |
4343 | } | |
4344 | if (src_devicep == NULL) | |
4345 | { | |
4346 | gomp_mutex_lock (&dst_devicep->lock); | |
6ce13072 CLT |
4347 | ret = dst_devicep->host2dev_func (dst_devicep->target_id, |
4348 | (char *) dst + dst_offset, | |
4349 | (char *) src + src_offset, length); | |
d9a6bd32 | 4350 | gomp_mutex_unlock (&dst_devicep->lock); |
6ce13072 | 4351 | return (ret ? 0 : EINVAL); |
d9a6bd32 JJ |
4352 | } |
4353 | if (dst_devicep == NULL) | |
4354 | { | |
4355 | gomp_mutex_lock (&src_devicep->lock); | |
6ce13072 CLT |
4356 | ret = src_devicep->dev2host_func (src_devicep->target_id, |
4357 | (char *) dst + dst_offset, | |
4358 | (char *) src + src_offset, length); | |
d9a6bd32 | 4359 | gomp_mutex_unlock (&src_devicep->lock); |
6ce13072 | 4360 | return (ret ? 0 : EINVAL); |
d9a6bd32 JJ |
4361 | } |
4362 | if (src_devicep == dst_devicep) | |
4363 | { | |
4364 | gomp_mutex_lock (&src_devicep->lock); | |
6ce13072 CLT |
4365 | ret = src_devicep->dev2dev_func (src_devicep->target_id, |
4366 | (char *) dst + dst_offset, | |
4367 | (char *) src + src_offset, length); | |
d9a6bd32 | 4368 | gomp_mutex_unlock (&src_devicep->lock); |
6ce13072 | 4369 | return (ret ? 0 : EINVAL); |
d9a6bd32 JJ |
4370 | } |
4371 | return EINVAL; | |
4372 | } | |
4373 | ||
6c420193 MV |
4374 | int |
4375 | omp_target_memcpy (void *dst, const void *src, size_t length, size_t dst_offset, | |
4376 | size_t src_offset, int dst_device_num, int src_device_num) | |
4377 | { | |
4378 | struct gomp_device_descr *dst_devicep = NULL, *src_devicep = NULL; | |
4379 | int ret = omp_target_memcpy_check (dst_device_num, src_device_num, | |
4380 | &dst_devicep, &src_devicep); | |
4381 | ||
4382 | if (ret) | |
4383 | return ret; | |
4384 | ||
4385 | ret = omp_target_memcpy_copy (dst, src, length, dst_offset, src_offset, | |
4386 | dst_devicep, src_devicep); | |
4387 | ||
4388 | return ret; | |
4389 | } | |
4390 | ||
4391 | typedef struct | |
4392 | { | |
4393 | void *dst; | |
4394 | const void *src; | |
4395 | size_t length; | |
4396 | size_t dst_offset; | |
4397 | size_t src_offset; | |
4398 | struct gomp_device_descr *dst_devicep; | |
4399 | struct gomp_device_descr *src_devicep; | |
4400 | } omp_target_memcpy_data; | |
4401 | ||
4402 | static void | |
4403 | omp_target_memcpy_async_helper (void *args) | |
4404 | { | |
4405 | omp_target_memcpy_data *a = args; | |
4406 | if (omp_target_memcpy_copy (a->dst, a->src, a->length, a->dst_offset, | |
4407 | a->src_offset, a->dst_devicep, a->src_devicep)) | |
4408 | gomp_fatal ("omp_target_memcpy failed"); | |
4409 | } | |
4410 | ||
4411 | int | |
4412 | omp_target_memcpy_async (void *dst, const void *src, size_t length, | |
4413 | size_t dst_offset, size_t src_offset, | |
4414 | int dst_device_num, int src_device_num, | |
4415 | int depobj_count, omp_depend_t *depobj_list) | |
4416 | { | |
4417 | struct gomp_device_descr *dst_devicep = NULL, *src_devicep = NULL; | |
4418 | unsigned int flags = 0; | |
4419 | void *depend[depobj_count + 5]; | |
4420 | int i; | |
4421 | int check = omp_target_memcpy_check (dst_device_num, src_device_num, | |
4422 | &dst_devicep, &src_devicep); | |
4423 | ||
4424 | omp_target_memcpy_data s = { | |
4425 | .dst = dst, | |
4426 | .src = src, | |
4427 | .length = length, | |
4428 | .dst_offset = dst_offset, | |
4429 | .src_offset = src_offset, | |
4430 | .dst_devicep = dst_devicep, | |
4431 | .src_devicep = src_devicep | |
4432 | }; | |
4433 | ||
4434 | if (check) | |
4435 | return check; | |
4436 | ||
4437 | if (depobj_count > 0 && depobj_list != NULL) | |
4438 | { | |
4439 | flags |= GOMP_TASK_FLAG_DEPEND; | |
4440 | depend[0] = 0; | |
4441 | depend[1] = (void *) (uintptr_t) depobj_count; | |
4442 | depend[2] = depend[3] = depend[4] = 0; | |
4443 | for (i = 0; i < depobj_count; ++i) | |
4444 | depend[i + 5] = &depobj_list[i]; | |
4445 | } | |
4446 | ||
4447 | GOMP_task (omp_target_memcpy_async_helper, &s, NULL, sizeof (s), | |
4448 | __alignof__ (s), true, flags, depend, 0, NULL); | |
4449 | ||
4450 | return 0; | |
4451 | } | |
4452 | ||
d9a6bd32 | 4453 | static int |
28567c40 | 4454 | omp_target_memcpy_rect_worker (void *dst, const void *src, size_t element_size, |
d9a6bd32 JJ |
4455 | int num_dims, const size_t *volume, |
4456 | const size_t *dst_offsets, | |
4457 | const size_t *src_offsets, | |
4458 | const size_t *dst_dimensions, | |
4459 | const size_t *src_dimensions, | |
4460 | struct gomp_device_descr *dst_devicep, | |
4461 | struct gomp_device_descr *src_devicep) | |
4462 | { | |
4463 | size_t dst_slice = element_size; | |
4464 | size_t src_slice = element_size; | |
4465 | size_t j, dst_off, src_off, length; | |
4466 | int i, ret; | |
4467 | ||
4468 | if (num_dims == 1) | |
4469 | { | |
4470 | if (__builtin_mul_overflow (element_size, volume[0], &length) | |
4471 | || __builtin_mul_overflow (element_size, dst_offsets[0], &dst_off) | |
4472 | || __builtin_mul_overflow (element_size, src_offsets[0], &src_off)) | |
4473 | return EINVAL; | |
4474 | if (dst_devicep == NULL && src_devicep == NULL) | |
6ce13072 | 4475 | { |
28567c40 JJ |
4476 | memcpy ((char *) dst + dst_off, (const char *) src + src_off, |
4477 | length); | |
6ce13072 CLT |
4478 | ret = 1; |
4479 | } | |
d9a6bd32 | 4480 | else if (src_devicep == NULL) |
6ce13072 CLT |
4481 | ret = dst_devicep->host2dev_func (dst_devicep->target_id, |
4482 | (char *) dst + dst_off, | |
28567c40 JJ |
4483 | (const char *) src + src_off, |
4484 | length); | |
d9a6bd32 | 4485 | else if (dst_devicep == NULL) |
6ce13072 CLT |
4486 | ret = src_devicep->dev2host_func (src_devicep->target_id, |
4487 | (char *) dst + dst_off, | |
28567c40 JJ |
4488 | (const char *) src + src_off, |
4489 | length); | |
d9a6bd32 | 4490 | else if (src_devicep == dst_devicep) |
6ce13072 CLT |
4491 | ret = src_devicep->dev2dev_func (src_devicep->target_id, |
4492 | (char *) dst + dst_off, | |
28567c40 JJ |
4493 | (const char *) src + src_off, |
4494 | length); | |
d9a6bd32 | 4495 | else |
6ce13072 CLT |
4496 | ret = 0; |
4497 | return ret ? 0 : EINVAL; | |
d9a6bd32 JJ |
4498 | } |
4499 | ||
4500 | /* FIXME: it would be nice to have some plugin function to handle | |
4501 | num_dims == 2 and num_dims == 3 more efficiently. Larger ones can | |
4502 | be handled in the generic recursion below, and for host-host it | |
4503 | should be used even for any num_dims >= 2. */ | |
4504 | ||
4505 | for (i = 1; i < num_dims; i++) | |
4506 | if (__builtin_mul_overflow (dst_slice, dst_dimensions[i], &dst_slice) | |
4507 | || __builtin_mul_overflow (src_slice, src_dimensions[i], &src_slice)) | |
4508 | return EINVAL; | |
4509 | if (__builtin_mul_overflow (dst_slice, dst_offsets[0], &dst_off) | |
4510 | || __builtin_mul_overflow (src_slice, src_offsets[0], &src_off)) | |
4511 | return EINVAL; | |
4512 | for (j = 0; j < volume[0]; j++) | |
4513 | { | |
4514 | ret = omp_target_memcpy_rect_worker ((char *) dst + dst_off, | |
28567c40 | 4515 | (const char *) src + src_off, |
d9a6bd32 JJ |
4516 | element_size, num_dims - 1, |
4517 | volume + 1, dst_offsets + 1, | |
4518 | src_offsets + 1, dst_dimensions + 1, | |
4519 | src_dimensions + 1, dst_devicep, | |
4520 | src_devicep); | |
4521 | if (ret) | |
4522 | return ret; | |
4523 | dst_off += dst_slice; | |
4524 | src_off += src_slice; | |
4525 | } | |
4526 | return 0; | |
4527 | } | |
4528 | ||
6c420193 MV |
4529 | static int |
4530 | omp_target_memcpy_rect_check (void *dst, const void *src, int dst_device_num, | |
4531 | int src_device_num, | |
4532 | struct gomp_device_descr **dst_devicep, | |
4533 | struct gomp_device_descr **src_devicep) | |
d9a6bd32 | 4534 | { |
d9a6bd32 JJ |
4535 | if (!dst && !src) |
4536 | return INT_MAX; | |
4537 | ||
6c420193 MV |
4538 | int ret = omp_target_memcpy_check (dst_device_num, src_device_num, |
4539 | dst_devicep, src_devicep); | |
4540 | if (ret) | |
4541 | return ret; | |
d9a6bd32 | 4542 | |
6c420193 | 4543 | if (*src_devicep != NULL && *dst_devicep != NULL && *src_devicep != *dst_devicep) |
d9a6bd32 JJ |
4544 | return EINVAL; |
4545 | ||
6c420193 MV |
4546 | return 0; |
4547 | } | |
4548 | ||
4549 | static int | |
4550 | omp_target_memcpy_rect_copy (void *dst, const void *src, | |
4551 | size_t element_size, int num_dims, | |
4552 | const size_t *volume, const size_t *dst_offsets, | |
4553 | const size_t *src_offsets, | |
4554 | const size_t *dst_dimensions, | |
4555 | const size_t *src_dimensions, | |
4556 | struct gomp_device_descr *dst_devicep, | |
4557 | struct gomp_device_descr *src_devicep) | |
4558 | { | |
d9a6bd32 JJ |
4559 | if (src_devicep) |
4560 | gomp_mutex_lock (&src_devicep->lock); | |
4561 | else if (dst_devicep) | |
4562 | gomp_mutex_lock (&dst_devicep->lock); | |
4563 | int ret = omp_target_memcpy_rect_worker (dst, src, element_size, num_dims, | |
4564 | volume, dst_offsets, src_offsets, | |
4565 | dst_dimensions, src_dimensions, | |
4566 | dst_devicep, src_devicep); | |
4567 | if (src_devicep) | |
4568 | gomp_mutex_unlock (&src_devicep->lock); | |
4569 | else if (dst_devicep) | |
4570 | gomp_mutex_unlock (&dst_devicep->lock); | |
6c420193 MV |
4571 | |
4572 | return ret; | |
4573 | } | |
4574 | ||
4575 | int | |
4576 | omp_target_memcpy_rect (void *dst, const void *src, size_t element_size, | |
4577 | int num_dims, const size_t *volume, | |
4578 | const size_t *dst_offsets, | |
4579 | const size_t *src_offsets, | |
4580 | const size_t *dst_dimensions, | |
4581 | const size_t *src_dimensions, | |
4582 | int dst_device_num, int src_device_num) | |
4583 | { | |
4584 | struct gomp_device_descr *dst_devicep = NULL, *src_devicep = NULL; | |
4585 | ||
4586 | int check = omp_target_memcpy_rect_check (dst, src, dst_device_num, | |
4587 | src_device_num, &dst_devicep, | |
4588 | &src_devicep); | |
4589 | ||
4590 | if (check) | |
4591 | return check; | |
4592 | ||
4593 | int ret = omp_target_memcpy_rect_copy (dst, src, element_size, num_dims, | |
4594 | volume, dst_offsets, src_offsets, | |
4595 | dst_dimensions, src_dimensions, | |
4596 | dst_devicep, src_devicep); | |
4597 | ||
d9a6bd32 JJ |
4598 | return ret; |
4599 | } | |
4600 | ||
6c420193 MV |
4601 | typedef struct |
4602 | { | |
4603 | void *dst; | |
4604 | const void *src; | |
4605 | size_t element_size; | |
4606 | const size_t *volume; | |
4607 | const size_t *dst_offsets; | |
4608 | const size_t *src_offsets; | |
4609 | const size_t *dst_dimensions; | |
4610 | const size_t *src_dimensions; | |
4611 | struct gomp_device_descr *dst_devicep; | |
4612 | struct gomp_device_descr *src_devicep; | |
4613 | int num_dims; | |
4614 | } omp_target_memcpy_rect_data; | |
4615 | ||
4616 | static void | |
4617 | omp_target_memcpy_rect_async_helper (void *args) | |
4618 | { | |
4619 | omp_target_memcpy_rect_data *a = args; | |
4620 | int ret = omp_target_memcpy_rect_copy (a->dst, a->src, a->element_size, | |
4621 | a->num_dims, a->volume, a->dst_offsets, | |
4622 | a->src_offsets, a->dst_dimensions, | |
4623 | a->src_dimensions, a->dst_devicep, | |
4624 | a->src_devicep); | |
4625 | if (ret) | |
4626 | gomp_fatal ("omp_target_memcpy_rect failed"); | |
4627 | } | |
4628 | ||
4629 | int | |
4630 | omp_target_memcpy_rect_async (void *dst, const void *src, size_t element_size, | |
4631 | int num_dims, const size_t *volume, | |
4632 | const size_t *dst_offsets, | |
4633 | const size_t *src_offsets, | |
4634 | const size_t *dst_dimensions, | |
4635 | const size_t *src_dimensions, | |
4636 | int dst_device_num, int src_device_num, | |
4637 | int depobj_count, omp_depend_t *depobj_list) | |
4638 | { | |
4639 | struct gomp_device_descr *dst_devicep = NULL, *src_devicep = NULL; | |
4640 | unsigned flags = 0; | |
4641 | int check = omp_target_memcpy_rect_check (dst, src, dst_device_num, | |
4642 | src_device_num, &dst_devicep, | |
4643 | &src_devicep); | |
4644 | void *depend[depobj_count + 5]; | |
4645 | int i; | |
4646 | ||
4647 | omp_target_memcpy_rect_data s = { | |
4648 | .dst = dst, | |
4649 | .src = src, | |
4650 | .element_size = element_size, | |
4651 | .num_dims = num_dims, | |
4652 | .volume = volume, | |
4653 | .dst_offsets = dst_offsets, | |
4654 | .src_offsets = src_offsets, | |
4655 | .dst_dimensions = dst_dimensions, | |
4656 | .src_dimensions = src_dimensions, | |
4657 | .dst_devicep = dst_devicep, | |
4658 | .src_devicep = src_devicep | |
4659 | }; | |
4660 | ||
4661 | if (check) | |
4662 | return check; | |
4663 | ||
4664 | if (depobj_count > 0 && depobj_list != NULL) | |
4665 | { | |
4666 | flags |= GOMP_TASK_FLAG_DEPEND; | |
4667 | depend[0] = 0; | |
4668 | depend[1] = (void *) (uintptr_t) depobj_count; | |
4669 | depend[2] = depend[3] = depend[4] = 0; | |
4670 | for (i = 0; i < depobj_count; ++i) | |
4671 | depend[i + 5] = &depobj_list[i]; | |
4672 | } | |
4673 | ||
4674 | GOMP_task (omp_target_memcpy_rect_async_helper, &s, NULL, sizeof (s), | |
4675 | __alignof__ (s), true, flags, depend, 0, NULL); | |
4676 | ||
4677 | return 0; | |
4678 | } | |
4679 | ||
d9a6bd32 | 4680 | int |
28567c40 JJ |
4681 | omp_target_associate_ptr (const void *host_ptr, const void *device_ptr, |
4682 | size_t size, size_t device_offset, int device_num) | |
d9a6bd32 | 4683 | { |
1158fe43 JJ |
4684 | if (device_num == omp_initial_device |
4685 | || device_num == gomp_get_num_devices ()) | |
d9a6bd32 JJ |
4686 | return EINVAL; |
4687 | ||
1158fe43 | 4688 | struct gomp_device_descr *devicep = resolve_device (device_num, false); |
d9a6bd32 JJ |
4689 | if (devicep == NULL) |
4690 | return EINVAL; | |
4691 | ||
b2b40051 MJ |
4692 | if (!(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) |
4693 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
d9a6bd32 JJ |
4694 | return EINVAL; |
4695 | ||
4696 | gomp_mutex_lock (&devicep->lock); | |
4697 | ||
4698 | struct splay_tree_s *mem_map = &devicep->mem_map; | |
4699 | struct splay_tree_key_s cur_node; | |
4700 | int ret = EINVAL; | |
4701 | ||
4702 | cur_node.host_start = (uintptr_t) host_ptr; | |
4703 | cur_node.host_end = cur_node.host_start + size; | |
4704 | splay_tree_key n = gomp_map_lookup (mem_map, &cur_node); | |
4705 | if (n) | |
4706 | { | |
4707 | if (n->tgt->tgt_start + n->tgt_offset | |
4708 | == (uintptr_t) device_ptr + device_offset | |
4709 | && n->host_start <= cur_node.host_start | |
4710 | && n->host_end >= cur_node.host_end) | |
4711 | ret = 0; | |
4712 | } | |
4713 | else | |
4714 | { | |
4715 | struct target_mem_desc *tgt = gomp_malloc (sizeof (*tgt)); | |
4716 | tgt->array = gomp_malloc (sizeof (*tgt->array)); | |
4717 | tgt->refcount = 1; | |
4718 | tgt->tgt_start = 0; | |
4719 | tgt->tgt_end = 0; | |
4720 | tgt->to_free = NULL; | |
4721 | tgt->prev = NULL; | |
4722 | tgt->list_count = 0; | |
4723 | tgt->device_descr = devicep; | |
4724 | splay_tree_node array = tgt->array; | |
4725 | splay_tree_key k = &array->key; | |
4726 | k->host_start = cur_node.host_start; | |
4727 | k->host_end = cur_node.host_end; | |
4728 | k->tgt = tgt; | |
4729 | k->tgt_offset = (uintptr_t) device_ptr + device_offset; | |
4730 | k->refcount = REFCOUNT_INFINITY; | |
6f5b4b64 | 4731 | k->dynamic_refcount = 0; |
2a656a93 | 4732 | k->aux = NULL; |
d9a6bd32 JJ |
4733 | array->left = NULL; |
4734 | array->right = NULL; | |
4735 | splay_tree_insert (&devicep->mem_map, array); | |
4736 | ret = 0; | |
4737 | } | |
4738 | gomp_mutex_unlock (&devicep->lock); | |
4739 | return ret; | |
4740 | } | |
4741 | ||
4742 | int | |
28567c40 | 4743 | omp_target_disassociate_ptr (const void *ptr, int device_num) |
d9a6bd32 | 4744 | { |
1158fe43 | 4745 | struct gomp_device_descr *devicep = resolve_device (device_num, false); |
d9a6bd32 JJ |
4746 | if (devicep == NULL) |
4747 | return EINVAL; | |
4748 | ||
4749 | if (!(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400)) | |
4750 | return EINVAL; | |
4751 | ||
4752 | gomp_mutex_lock (&devicep->lock); | |
4753 | ||
4754 | struct splay_tree_s *mem_map = &devicep->mem_map; | |
4755 | struct splay_tree_key_s cur_node; | |
4756 | int ret = EINVAL; | |
4757 | ||
4758 | cur_node.host_start = (uintptr_t) ptr; | |
4759 | cur_node.host_end = cur_node.host_start; | |
4760 | splay_tree_key n = gomp_map_lookup (mem_map, &cur_node); | |
4761 | if (n | |
4762 | && n->host_start == cur_node.host_start | |
4763 | && n->refcount == REFCOUNT_INFINITY | |
4764 | && n->tgt->tgt_start == 0 | |
4765 | && n->tgt->to_free == NULL | |
4766 | && n->tgt->refcount == 1 | |
4767 | && n->tgt->list_count == 0) | |
4768 | { | |
4769 | splay_tree_remove (&devicep->mem_map, n); | |
4770 | gomp_unmap_tgt (n->tgt); | |
4771 | ret = 0; | |
4772 | } | |
4773 | ||
4774 | gomp_mutex_unlock (&devicep->lock); | |
4775 | return ret; | |
4776 | } | |
4777 | ||
941cdc8b MV |
4778 | void * |
4779 | omp_get_mapped_ptr (const void *ptr, int device_num) | |
4780 | { | |
1158fe43 JJ |
4781 | if (device_num == omp_initial_device |
4782 | || device_num == omp_get_initial_device ()) | |
941cdc8b MV |
4783 | return (void *) ptr; |
4784 | ||
1158fe43 | 4785 | struct gomp_device_descr *devicep = resolve_device (device_num, false); |
941cdc8b MV |
4786 | if (devicep == NULL) |
4787 | return NULL; | |
4788 | ||
4789 | if (!(devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) | |
4790 | || devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) | |
4791 | return (void *) ptr; | |
4792 | ||
4793 | gomp_mutex_lock (&devicep->lock); | |
4794 | ||
4795 | struct splay_tree_s *mem_map = &devicep->mem_map; | |
4796 | struct splay_tree_key_s cur_node; | |
4797 | void *ret = NULL; | |
4798 | ||
4799 | cur_node.host_start = (uintptr_t) ptr; | |
4800 | cur_node.host_end = cur_node.host_start; | |
4801 | splay_tree_key n = gomp_map_0len_lookup (mem_map, &cur_node); | |
4802 | ||
4803 | if (n) | |
4804 | { | |
4805 | uintptr_t offset = cur_node.host_start - n->host_start; | |
4806 | ret = (void *) (n->tgt->tgt_start + n->tgt_offset + offset); | |
4807 | } | |
4808 | ||
4809 | gomp_mutex_unlock (&devicep->lock); | |
4810 | ||
4811 | return ret; | |
4812 | } | |
4813 | ||
4043f53c MV |
4814 | int |
4815 | omp_target_is_accessible (const void *ptr, size_t size, int device_num) | |
4816 | { | |
1158fe43 JJ |
4817 | if (device_num == omp_initial_device |
4818 | || device_num == gomp_get_num_devices ()) | |
4043f53c MV |
4819 | return true; |
4820 | ||
1158fe43 | 4821 | struct gomp_device_descr *devicep = resolve_device (device_num, false); |
4043f53c MV |
4822 | if (devicep == NULL) |
4823 | return false; | |
4824 | ||
4825 | /* TODO: Unified shared memory must be handled when available. */ | |
4826 | ||
4827 | return devicep->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM; | |
4828 | } | |
4829 | ||
28567c40 JJ |
4830 | int |
4831 | omp_pause_resource (omp_pause_resource_t kind, int device_num) | |
4832 | { | |
4833 | (void) kind; | |
1158fe43 JJ |
4834 | if (device_num == omp_initial_device |
4835 | || device_num == gomp_get_num_devices ()) | |
28567c40 | 4836 | return gomp_pause_host (); |
1158fe43 JJ |
4837 | |
4838 | struct gomp_device_descr *devicep = resolve_device (device_num, false); | |
4839 | if (devicep == NULL) | |
28567c40 | 4840 | return -1; |
1158fe43 | 4841 | |
28567c40 JJ |
4842 | /* Do nothing for target devices for now. */ |
4843 | return 0; | |
4844 | } | |
4845 | ||
4846 | int | |
4847 | omp_pause_resource_all (omp_pause_resource_t kind) | |
4848 | { | |
4849 | (void) kind; | |
4850 | if (gomp_pause_host ()) | |
4851 | return -1; | |
4852 | /* Do nothing for target devices for now. */ | |
4853 | return 0; | |
4854 | } | |
4855 | ||
4856 | ialias (omp_pause_resource) | |
4857 | ialias (omp_pause_resource_all) | |
4858 | ||
1df3f842 JJ |
4859 | #ifdef PLUGIN_SUPPORT |
4860 | ||
4861 | /* This function tries to load a plugin for DEVICE. Name of plugin is passed | |
4862 | in PLUGIN_NAME. | |
4863 | The handles of the found functions are stored in the corresponding fields | |
4864 | of DEVICE. The function returns TRUE on success and FALSE otherwise. */ | |
4865 | ||
4866 | static bool | |
4867 | gomp_load_plugin_for_device (struct gomp_device_descr *device, | |
4868 | const char *plugin_name) | |
4869 | { | |
196904d8 | 4870 | const char *err = NULL, *last_missing = NULL; |
41dbbb37 | 4871 | |
1df3f842 JJ |
4872 | void *plugin_handle = dlopen (plugin_name, RTLD_LAZY); |
4873 | if (!plugin_handle) | |
fe5bfa67 TB |
4874 | #if OFFLOAD_DEFAULTED |
4875 | return 0; | |
4876 | #else | |
2a21ff19 | 4877 | goto dl_fail; |
fe5bfa67 | 4878 | #endif |
1df3f842 JJ |
4879 | |
4880 | /* Check if all required functions are available in the plugin and store | |
2a21ff19 NS |
4881 | their handlers. None of the symbols can legitimately be NULL, |
4882 | so we don't need to check dlerror all the time. */ | |
41dbbb37 | 4883 | #define DLSYM(f) \ |
2a21ff19 NS |
4884 | if (!(device->f##_func = dlsym (plugin_handle, "GOMP_OFFLOAD_" #f))) \ |
4885 | goto dl_fail | |
4886 | /* Similar, but missing functions are not an error. Return false if | |
4887 | failed, true otherwise. */ | |
4888 | #define DLSYM_OPT(f, n) \ | |
4889 | ((device->f##_func = dlsym (plugin_handle, "GOMP_OFFLOAD_" #n)) \ | |
4890 | || (last_missing = #n, 0)) | |
4891 | ||
4892 | DLSYM (version); | |
4893 | if (device->version_func () != GOMP_VERSION) | |
4894 | { | |
4895 | err = "plugin version mismatch"; | |
4896 | goto fail; | |
4897 | } | |
41dbbb37 TS |
4898 | |
4899 | DLSYM (get_name); | |
4900 | DLSYM (get_caps); | |
1df3f842 JJ |
4901 | DLSYM (get_type); |
4902 | DLSYM (get_num_devices); | |
1df3f842 | 4903 | DLSYM (init_device); |
41dbbb37 | 4904 | DLSYM (fini_device); |
a51df54e IV |
4905 | DLSYM (load_image); |
4906 | DLSYM (unload_image); | |
1df3f842 JJ |
4907 | DLSYM (alloc); |
4908 | DLSYM (free); | |
4909 | DLSYM (dev2host); | |
4910 | DLSYM (host2dev); | |
41dbbb37 TS |
4911 | device->capabilities = device->get_caps_func (); |
4912 | if (device->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) | |
d9a6bd32 JJ |
4913 | { |
4914 | DLSYM (run); | |
001ab12e | 4915 | DLSYM_OPT (async_run, async_run); |
b2b40051 | 4916 | DLSYM_OPT (can_run, can_run); |
d9a6bd32 JJ |
4917 | DLSYM (dev2dev); |
4918 | } | |
41dbbb37 TS |
4919 | if (device->capabilities & GOMP_OFFLOAD_CAP_OPENACC_200) |
4920 | { | |
345a8c17 | 4921 | if (!DLSYM_OPT (openacc.exec, openacc_exec) |
2a21ff19 NS |
4922 | || !DLSYM_OPT (openacc.create_thread_data, |
4923 | openacc_create_thread_data) | |
4924 | || !DLSYM_OPT (openacc.destroy_thread_data, | |
1f4c5b9b CLT |
4925 | openacc_destroy_thread_data) |
4926 | || !DLSYM_OPT (openacc.async.construct, openacc_async_construct) | |
4927 | || !DLSYM_OPT (openacc.async.destruct, openacc_async_destruct) | |
4928 | || !DLSYM_OPT (openacc.async.test, openacc_async_test) | |
4929 | || !DLSYM_OPT (openacc.async.synchronize, openacc_async_synchronize) | |
4930 | || !DLSYM_OPT (openacc.async.serialize, openacc_async_serialize) | |
4931 | || !DLSYM_OPT (openacc.async.queue_callback, | |
4932 | openacc_async_queue_callback) | |
4933 | || !DLSYM_OPT (openacc.async.exec, openacc_async_exec) | |
4934 | || !DLSYM_OPT (openacc.async.dev2host, openacc_async_dev2host) | |
6fc0385c TS |
4935 | || !DLSYM_OPT (openacc.async.host2dev, openacc_async_host2dev) |
4936 | || !DLSYM_OPT (openacc.get_property, openacc_get_property)) | |
41dbbb37 | 4937 | { |
2a21ff19 NS |
4938 | /* Require all the OpenACC handlers if we have |
4939 | GOMP_OFFLOAD_CAP_OPENACC_200. */ | |
41dbbb37 | 4940 | err = "plugin missing OpenACC handler function"; |
2a21ff19 | 4941 | goto fail; |
41dbbb37 | 4942 | } |
2a21ff19 NS |
4943 | |
4944 | unsigned cuda = 0; | |
4945 | cuda += DLSYM_OPT (openacc.cuda.get_current_device, | |
345a8c17 | 4946 | openacc_cuda_get_current_device); |
2a21ff19 | 4947 | cuda += DLSYM_OPT (openacc.cuda.get_current_context, |
345a8c17 TS |
4948 | openacc_cuda_get_current_context); |
4949 | cuda += DLSYM_OPT (openacc.cuda.get_stream, openacc_cuda_get_stream); | |
4950 | cuda += DLSYM_OPT (openacc.cuda.set_stream, openacc_cuda_set_stream); | |
2a21ff19 | 4951 | if (cuda && cuda != 4) |
41dbbb37 | 4952 | { |
2a21ff19 | 4953 | /* Make sure all the CUDA functions are there if any of them are. */ |
41dbbb37 | 4954 | err = "plugin missing OpenACC CUDA handler function"; |
2a21ff19 | 4955 | goto fail; |
41dbbb37 TS |
4956 | } |
4957 | } | |
1df3f842 | 4958 | #undef DLSYM |
41dbbb37 | 4959 | #undef DLSYM_OPT |
1df3f842 | 4960 | |
2a21ff19 NS |
4961 | return 1; |
4962 | ||
4963 | dl_fail: | |
4964 | err = dlerror (); | |
4965 | fail: | |
4966 | gomp_error ("while loading %s: %s", plugin_name, err); | |
4967 | if (last_missing) | |
4968 | gomp_error ("missing function was %s", last_missing); | |
4969 | if (plugin_handle) | |
4970 | dlclose (plugin_handle); | |
4971 | ||
4972 | return 0; | |
1df3f842 JJ |
4973 | } |
4974 | ||
d84ffc0a IV |
4975 | /* This function finalizes all initialized devices. */ |
4976 | ||
4977 | static void | |
4978 | gomp_target_fini (void) | |
4979 | { | |
4980 | int i; | |
4981 | for (i = 0; i < num_devices; i++) | |
4982 | { | |
6ce13072 | 4983 | bool ret = true; |
d84ffc0a IV |
4984 | struct gomp_device_descr *devicep = &devices[i]; |
4985 | gomp_mutex_lock (&devicep->lock); | |
4986 | if (devicep->state == GOMP_DEVICE_INITIALIZED) | |
1f4c5b9b | 4987 | ret = gomp_fini_device (devicep); |
d84ffc0a | 4988 | gomp_mutex_unlock (&devicep->lock); |
6ce13072 CLT |
4989 | if (!ret) |
4990 | gomp_fatal ("device finalization failed"); | |
d84ffc0a IV |
4991 | } |
4992 | } | |
4993 | ||
ee332b4a TS |
4994 | /* This function initializes the runtime for offloading. |
4995 | It parses the list of offload plugins, and tries to load these. | |
4996 | On return, the variables NUM_DEVICES and NUM_DEVICES_OPENMP | |
41dbbb37 TS |
4997 | will be set, and the array DEVICES initialized, containing descriptors for |
4998 | corresponding devices, first the GOMP_OFFLOAD_CAP_OPENMP_400 ones, follows | |
4999 | by the others. */ | |
1df3f842 JJ |
5000 | |
5001 | static void | |
5002 | gomp_target_init (void) | |
5003 | { | |
5004 | const char *prefix ="libgomp-plugin-"; | |
b5f7a6ca | 5005 | const char *suffix = SONAME_SUFFIX (1); |
1df3f842 JJ |
5006 | const char *cur, *next; |
5007 | char *plugin_name; | |
35f258f4 JJ |
5008 | int i, new_num_devs; |
5009 | int num_devs = 0, num_devs_openmp; | |
5010 | struct gomp_device_descr *devs = NULL; | |
1df3f842 | 5011 | |
1bfc07d1 KCY |
5012 | if (gomp_target_offload_var == GOMP_TARGET_OFFLOAD_DISABLED) |
5013 | return; | |
5014 | ||
ee332b4a | 5015 | cur = OFFLOAD_PLUGINS; |
1df3f842 JJ |
5016 | if (*cur) |
5017 | do | |
5018 | { | |
5019 | struct gomp_device_descr current_device; | |
b13547d8 | 5020 | size_t prefix_len, suffix_len, cur_len; |
1df3f842 JJ |
5021 | |
5022 | next = strchr (cur, ','); | |
5023 | ||
b13547d8 JJ |
5024 | prefix_len = strlen (prefix); |
5025 | cur_len = next ? next - cur : strlen (cur); | |
5026 | suffix_len = strlen (suffix); | |
5027 | ||
5028 | plugin_name = (char *) malloc (prefix_len + cur_len + suffix_len + 1); | |
1df3f842 JJ |
5029 | if (!plugin_name) |
5030 | { | |
35f258f4 | 5031 | num_devs = 0; |
1df3f842 JJ |
5032 | break; |
5033 | } | |
5034 | ||
b13547d8 JJ |
5035 | memcpy (plugin_name, prefix, prefix_len); |
5036 | memcpy (plugin_name + prefix_len, cur, cur_len); | |
5037 | memcpy (plugin_name + prefix_len + cur_len, suffix, suffix_len + 1); | |
1df3f842 JJ |
5038 | |
5039 | if (gomp_load_plugin_for_device (¤t_device, plugin_name)) | |
5040 | { | |
683f1184 TB |
5041 | int omp_req = omp_requires_mask & ~GOMP_REQUIRES_TARGET_USED; |
5042 | new_num_devs = current_device.get_num_devices_func (omp_req); | |
5043 | if (gomp_debug_var > 0 && new_num_devs < 0) | |
5044 | { | |
5045 | bool found = false; | |
5046 | int type = current_device.get_type_func (); | |
5047 | for (int img = 0; img < num_offload_images; img++) | |
5048 | if (type == offload_images[img].type) | |
5049 | found = true; | |
5050 | if (found) | |
5051 | { | |
5052 | char buf[sizeof ("unified_address, unified_shared_memory, " | |
5053 | "reverse_offload")]; | |
5054 | gomp_requires_to_name (buf, sizeof (buf), omp_req); | |
5055 | char *name = (char *) malloc (cur_len + 1); | |
5056 | memcpy (name, cur, cur_len); | |
5057 | name[cur_len] = '\0'; | |
5058 | gomp_debug (1, | |
5059 | "%s devices present but 'omp requires %s' " | |
220bef46 | 5060 | "cannot be fulfilled\n", name, buf); |
683f1184 TB |
5061 | free (name); |
5062 | } | |
5063 | } | |
5064 | else if (new_num_devs >= 1) | |
1df3f842 | 5065 | { |
41dbbb37 TS |
5066 | /* Augment DEVICES and NUM_DEVICES. */ |
5067 | ||
35f258f4 JJ |
5068 | devs = realloc (devs, (num_devs + new_num_devs) |
5069 | * sizeof (struct gomp_device_descr)); | |
5070 | if (!devs) | |
1df3f842 | 5071 | { |
35f258f4 | 5072 | num_devs = 0; |
1df3f842 JJ |
5073 | free (plugin_name); |
5074 | break; | |
5075 | } | |
5076 | ||
41dbbb37 TS |
5077 | current_device.name = current_device.get_name_func (); |
5078 | /* current_device.capabilities has already been set. */ | |
1df3f842 | 5079 | current_device.type = current_device.get_type_func (); |
a51df54e | 5080 | current_device.mem_map.root = NULL; |
ea4b23d9 | 5081 | current_device.mem_map_rev.root = NULL; |
d84ffc0a | 5082 | current_device.state = GOMP_DEVICE_UNINITIALIZED; |
35f258f4 | 5083 | for (i = 0; i < new_num_devs; i++) |
1df3f842 | 5084 | { |
1df3f842 | 5085 | current_device.target_id = i; |
35f258f4 JJ |
5086 | devs[num_devs] = current_device; |
5087 | gomp_mutex_init (&devs[num_devs].lock); | |
5088 | num_devs++; | |
1df3f842 JJ |
5089 | } |
5090 | } | |
5091 | } | |
5092 | ||
5093 | free (plugin_name); | |
5094 | cur = next + 1; | |
5095 | } | |
5096 | while (next); | |
5097 | ||
41dbbb37 TS |
5098 | /* In DEVICES, sort the GOMP_OFFLOAD_CAP_OPENMP_400 ones first, and set |
5099 | NUM_DEVICES_OPENMP. */ | |
35f258f4 JJ |
5100 | struct gomp_device_descr *devs_s |
5101 | = malloc (num_devs * sizeof (struct gomp_device_descr)); | |
5102 | if (!devs_s) | |
5103 | { | |
5104 | num_devs = 0; | |
5105 | free (devs); | |
5106 | devs = NULL; | |
5107 | } | |
5108 | num_devs_openmp = 0; | |
5109 | for (i = 0; i < num_devs; i++) | |
5110 | if (devs[i].capabilities & GOMP_OFFLOAD_CAP_OPENMP_400) | |
5111 | devs_s[num_devs_openmp++] = devs[i]; | |
5112 | int num_devs_after_openmp = num_devs_openmp; | |
5113 | for (i = 0; i < num_devs; i++) | |
5114 | if (!(devs[i].capabilities & GOMP_OFFLOAD_CAP_OPENMP_400)) | |
5115 | devs_s[num_devs_after_openmp++] = devs[i]; | |
5116 | free (devs); | |
5117 | devs = devs_s; | |
5118 | ||
5119 | for (i = 0; i < num_devs; i++) | |
41dbbb37 | 5120 | { |
41dbbb37 TS |
5121 | /* The 'devices' array can be moved (by the realloc call) until we have |
5122 | found all the plugins, so registering with the OpenACC runtime (which | |
5123 | takes a copy of the pointer argument) must be delayed until now. */ | |
35f258f4 JJ |
5124 | if (devs[i].capabilities & GOMP_OFFLOAD_CAP_OPENACC_200) |
5125 | goacc_register (&devs[i]); | |
41dbbb37 | 5126 | } |
d84ffc0a | 5127 | |
35f258f4 JJ |
5128 | num_devices = num_devs; |
5129 | num_devices_openmp = num_devs_openmp; | |
5130 | devices = devs; | |
d84ffc0a IV |
5131 | if (atexit (gomp_target_fini) != 0) |
5132 | gomp_fatal ("atexit failed"); | |
1df3f842 JJ |
5133 | } |
5134 | ||
5135 | #else /* PLUGIN_SUPPORT */ | |
5136 | /* If dlfcn.h is unavailable we always fallback to host execution. | |
5137 | GOMP_target* routines are just stubs for this case. */ | |
5138 | static void | |
5139 | gomp_target_init (void) | |
5140 | { | |
5141 | } | |
5142 | #endif /* PLUGIN_SUPPORT */ |