|
111
|
1 /* OpenACC Runtime initialization routines
|
|
|
2
|
|
|
3 Copyright (C) 2013-2017 Free Software Foundation, Inc.
|
|
|
4
|
|
|
5 Contributed by Mentor Embedded.
|
|
|
6
|
|
|
7 This file is part of the GNU Offloading and Multi Processing Library
|
|
|
8 (libgomp).
|
|
|
9
|
|
|
10 Libgomp is free software; you can redistribute it and/or modify it
|
|
|
11 under the terms of the GNU General Public License as published by
|
|
|
12 the Free Software Foundation; either version 3, or (at your option)
|
|
|
13 any later version.
|
|
|
14
|
|
|
15 Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
|
16 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
|
|
17 FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
|
18 more details.
|
|
|
19
|
|
|
20 Under Section 7 of GPL version 3, you are granted additional
|
|
|
21 permissions described in the GCC Runtime Library Exception, version
|
|
|
22 3.1, as published by the Free Software Foundation.
|
|
|
23
|
|
|
24 You should have received a copy of the GNU General Public License and
|
|
|
25 a copy of the GCC Runtime Library Exception along with this program;
|
|
|
26 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
|
27 <http://www.gnu.org/licenses/>. */
|
|
|
28
|
|
|
29 #include "openacc.h"
|
|
|
30 #include "config.h"
|
|
|
31 #include "libgomp.h"
|
|
|
32 #include "gomp-constants.h"
|
|
|
33 #include "oacc-int.h"
|
|
|
34 #include <stdint.h>
|
|
|
35 #include <string.h>
|
|
|
36 #include <assert.h>
|
|
|
37
|
|
|
38 /* Return block containing [H->S), or NULL if not contained. The device lock
|
|
|
39 for DEV must be locked on entry, and remains locked on exit. */
|
|
|
40
|
|
|
41 static splay_tree_key
|
|
|
42 lookup_host (struct gomp_device_descr *dev, void *h, size_t s)
|
|
|
43 {
|
|
|
44 struct splay_tree_key_s node;
|
|
|
45 splay_tree_key key;
|
|
|
46
|
|
|
47 node.host_start = (uintptr_t) h;
|
|
|
48 node.host_end = (uintptr_t) h + s;
|
|
|
49
|
|
|
50 key = splay_tree_lookup (&dev->mem_map, &node);
|
|
|
51
|
|
|
52 return key;
|
|
|
53 }
|
|
|
54
|
|
|
55 /* Return block containing [D->S), or NULL if not contained.
|
|
|
56 The list isn't ordered by device address, so we have to iterate
|
|
|
57 over the whole array. This is not expected to be a common
|
|
|
58 operation. The device lock associated with TGT must be locked on entry, and
|
|
|
59 remains locked on exit. */
|
|
|
60
|
|
|
61 static splay_tree_key
|
|
|
62 lookup_dev (struct target_mem_desc *tgt, void *d, size_t s)
|
|
|
63 {
|
|
|
64 int i;
|
|
|
65 struct target_mem_desc *t;
|
|
|
66
|
|
|
67 if (!tgt)
|
|
|
68 return NULL;
|
|
|
69
|
|
|
70 for (t = tgt; t != NULL; t = t->prev)
|
|
|
71 {
|
|
|
72 if (t->tgt_start <= (uintptr_t) d && t->tgt_end >= (uintptr_t) d + s)
|
|
|
73 break;
|
|
|
74 }
|
|
|
75
|
|
|
76 if (!t)
|
|
|
77 return NULL;
|
|
|
78
|
|
|
79 for (i = 0; i < t->list_count; i++)
|
|
|
80 {
|
|
|
81 void * offset;
|
|
|
82
|
|
|
83 splay_tree_key k = &t->array[i].key;
|
|
|
84 offset = d - t->tgt_start + k->tgt_offset;
|
|
|
85
|
|
|
86 if (k->host_start + offset <= (void *) k->host_end)
|
|
|
87 return k;
|
|
|
88 }
|
|
|
89
|
|
|
90 return NULL;
|
|
|
91 }
|
|
|
92
|
|
|
93 /* OpenACC is silent on how memory exhaustion is indicated. We return
|
|
|
94 NULL. */
|
|
|
95
|
|
|
96 void *
|
|
|
97 acc_malloc (size_t s)
|
|
|
98 {
|
|
|
99 if (!s)
|
|
|
100 return NULL;
|
|
|
101
|
|
|
102 goacc_lazy_initialize ();
|
|
|
103
|
|
|
104 struct goacc_thread *thr = goacc_thread ();
|
|
|
105
|
|
|
106 assert (thr->dev);
|
|
|
107
|
|
|
108 if (thr->dev->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM)
|
|
|
109 return malloc (s);
|
|
|
110
|
|
|
111 return thr->dev->alloc_func (thr->dev->target_id, s);
|
|
|
112 }
|
|
|
113
|
|
|
114 /* OpenACC 2.0a (3.2.16) doesn't specify what to do in the event
|
|
|
115 the device address is mapped. We choose to check if it mapped,
|
|
|
116 and if it is, to unmap it. */
|
|
|
117 void
|
|
|
118 acc_free (void *d)
|
|
|
119 {
|
|
|
120 splay_tree_key k;
|
|
|
121
|
|
|
122 if (!d)
|
|
|
123 return;
|
|
|
124
|
|
|
125 struct goacc_thread *thr = goacc_thread ();
|
|
|
126
|
|
|
127 assert (thr && thr->dev);
|
|
|
128
|
|
|
129 struct gomp_device_descr *acc_dev = thr->dev;
|
|
|
130
|
|
|
131 if (acc_dev->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM)
|
|
|
132 return free (d);
|
|
|
133
|
|
|
134 gomp_mutex_lock (&acc_dev->lock);
|
|
|
135
|
|
|
136 /* We don't have to call lazy open here, as the ptr value must have
|
|
|
137 been returned by acc_malloc. It's not permitted to pass NULL in
|
|
|
138 (unless you got that null from acc_malloc). */
|
|
|
139 if ((k = lookup_dev (acc_dev->openacc.data_environ, d, 1)))
|
|
|
140 {
|
|
|
141 void *offset;
|
|
|
142
|
|
|
143 offset = d - k->tgt->tgt_start + k->tgt_offset;
|
|
|
144
|
|
|
145 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
146
|
|
|
147 acc_unmap_data ((void *)(k->host_start + offset));
|
|
|
148 }
|
|
|
149 else
|
|
|
150 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
151
|
|
|
152 if (!acc_dev->free_func (acc_dev->target_id, d))
|
|
|
153 gomp_fatal ("error in freeing device memory in %s", __FUNCTION__);
|
|
|
154 }
|
|
|
155
|
|
|
156 void
|
|
|
157 acc_memcpy_to_device (void *d, void *h, size_t s)
|
|
|
158 {
|
|
|
159 /* No need to call lazy open here, as the device pointer must have
|
|
|
160 been obtained from a routine that did that. */
|
|
|
161 struct goacc_thread *thr = goacc_thread ();
|
|
|
162
|
|
|
163 assert (thr && thr->dev);
|
|
|
164
|
|
|
165 if (thr->dev->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM)
|
|
|
166 {
|
|
|
167 memmove (d, h, s);
|
|
|
168 return;
|
|
|
169 }
|
|
|
170
|
|
|
171 if (!thr->dev->host2dev_func (thr->dev->target_id, d, h, s))
|
|
|
172 gomp_fatal ("error in %s", __FUNCTION__);
|
|
|
173 }
|
|
|
174
|
|
|
175 void
|
|
|
176 acc_memcpy_from_device (void *h, void *d, size_t s)
|
|
|
177 {
|
|
|
178 /* No need to call lazy open here, as the device pointer must have
|
|
|
179 been obtained from a routine that did that. */
|
|
|
180 struct goacc_thread *thr = goacc_thread ();
|
|
|
181
|
|
|
182 assert (thr && thr->dev);
|
|
|
183
|
|
|
184 if (thr->dev->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM)
|
|
|
185 {
|
|
|
186 memmove (h, d, s);
|
|
|
187 return;
|
|
|
188 }
|
|
|
189
|
|
|
190 if (!thr->dev->dev2host_func (thr->dev->target_id, h, d, s))
|
|
|
191 gomp_fatal ("error in %s", __FUNCTION__);
|
|
|
192 }
|
|
|
193
|
|
|
194 /* Return the device pointer that corresponds to host data H. Or NULL
|
|
|
195 if no mapping. */
|
|
|
196
|
|
|
197 void *
|
|
|
198 acc_deviceptr (void *h)
|
|
|
199 {
|
|
|
200 splay_tree_key n;
|
|
|
201 void *d;
|
|
|
202 void *offset;
|
|
|
203
|
|
|
204 goacc_lazy_initialize ();
|
|
|
205
|
|
|
206 struct goacc_thread *thr = goacc_thread ();
|
|
|
207 struct gomp_device_descr *dev = thr->dev;
|
|
|
208
|
|
|
209 if (thr->dev->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM)
|
|
|
210 return h;
|
|
|
211
|
|
|
212 gomp_mutex_lock (&dev->lock);
|
|
|
213
|
|
|
214 n = lookup_host (dev, h, 1);
|
|
|
215
|
|
|
216 if (!n)
|
|
|
217 {
|
|
|
218 gomp_mutex_unlock (&dev->lock);
|
|
|
219 return NULL;
|
|
|
220 }
|
|
|
221
|
|
|
222 offset = h - n->host_start;
|
|
|
223
|
|
|
224 d = n->tgt->tgt_start + n->tgt_offset + offset;
|
|
|
225
|
|
|
226 gomp_mutex_unlock (&dev->lock);
|
|
|
227
|
|
|
228 return d;
|
|
|
229 }
|
|
|
230
|
|
|
231 /* Return the host pointer that corresponds to device data D. Or NULL
|
|
|
232 if no mapping. */
|
|
|
233
|
|
|
234 void *
|
|
|
235 acc_hostptr (void *d)
|
|
|
236 {
|
|
|
237 splay_tree_key n;
|
|
|
238 void *h;
|
|
|
239 void *offset;
|
|
|
240
|
|
|
241 goacc_lazy_initialize ();
|
|
|
242
|
|
|
243 struct goacc_thread *thr = goacc_thread ();
|
|
|
244 struct gomp_device_descr *acc_dev = thr->dev;
|
|
|
245
|
|
|
246 if (thr->dev->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM)
|
|
|
247 return d;
|
|
|
248
|
|
|
249 gomp_mutex_lock (&acc_dev->lock);
|
|
|
250
|
|
|
251 n = lookup_dev (acc_dev->openacc.data_environ, d, 1);
|
|
|
252
|
|
|
253 if (!n)
|
|
|
254 {
|
|
|
255 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
256 return NULL;
|
|
|
257 }
|
|
|
258
|
|
|
259 offset = d - n->tgt->tgt_start + n->tgt_offset;
|
|
|
260
|
|
|
261 h = n->host_start + offset;
|
|
|
262
|
|
|
263 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
264
|
|
|
265 return h;
|
|
|
266 }
|
|
|
267
|
|
|
268 /* Return 1 if host data [H,+S] is present on the device. */
|
|
|
269
|
|
|
270 int
|
|
|
271 acc_is_present (void *h, size_t s)
|
|
|
272 {
|
|
|
273 splay_tree_key n;
|
|
|
274
|
|
|
275 if (!s || !h)
|
|
|
276 return 0;
|
|
|
277
|
|
|
278 goacc_lazy_initialize ();
|
|
|
279
|
|
|
280 struct goacc_thread *thr = goacc_thread ();
|
|
|
281 struct gomp_device_descr *acc_dev = thr->dev;
|
|
|
282
|
|
|
283 if (thr->dev->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM)
|
|
|
284 return h != NULL;
|
|
|
285
|
|
|
286 gomp_mutex_lock (&acc_dev->lock);
|
|
|
287
|
|
|
288 n = lookup_host (acc_dev, h, s);
|
|
|
289
|
|
|
290 if (n && ((uintptr_t)h < n->host_start
|
|
|
291 || (uintptr_t)h + s > n->host_end
|
|
|
292 || s > n->host_end - n->host_start))
|
|
|
293 n = NULL;
|
|
|
294
|
|
|
295 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
296
|
|
|
297 return n != NULL;
|
|
|
298 }
|
|
|
299
|
|
|
300 /* Create a mapping for host [H,+S] -> device [D,+S] */
|
|
|
301
|
|
|
302 void
|
|
|
303 acc_map_data (void *h, void *d, size_t s)
|
|
|
304 {
|
|
|
305 struct target_mem_desc *tgt = NULL;
|
|
|
306 size_t mapnum = 1;
|
|
|
307 void *hostaddrs = h;
|
|
|
308 void *devaddrs = d;
|
|
|
309 size_t sizes = s;
|
|
|
310 unsigned short kinds = GOMP_MAP_ALLOC;
|
|
|
311
|
|
|
312 goacc_lazy_initialize ();
|
|
|
313
|
|
|
314 struct goacc_thread *thr = goacc_thread ();
|
|
|
315 struct gomp_device_descr *acc_dev = thr->dev;
|
|
|
316
|
|
|
317 if (acc_dev->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM)
|
|
|
318 {
|
|
|
319 if (d != h)
|
|
|
320 gomp_fatal ("cannot map data on shared-memory system");
|
|
|
321 }
|
|
|
322 else
|
|
|
323 {
|
|
|
324 struct goacc_thread *thr = goacc_thread ();
|
|
|
325
|
|
|
326 if (!d || !h || !s)
|
|
|
327 gomp_fatal ("[%p,+%d]->[%p,+%d] is a bad map",
|
|
|
328 (void *)h, (int)s, (void *)d, (int)s);
|
|
|
329
|
|
|
330 gomp_mutex_lock (&acc_dev->lock);
|
|
|
331
|
|
|
332 if (lookup_host (acc_dev, h, s))
|
|
|
333 {
|
|
|
334 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
335 gomp_fatal ("host address [%p, +%d] is already mapped", (void *)h,
|
|
|
336 (int)s);
|
|
|
337 }
|
|
|
338
|
|
|
339 if (lookup_dev (thr->dev->openacc.data_environ, d, s))
|
|
|
340 {
|
|
|
341 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
342 gomp_fatal ("device address [%p, +%d] is already mapped", (void *)d,
|
|
|
343 (int)s);
|
|
|
344 }
|
|
|
345
|
|
|
346 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
347
|
|
|
348 tgt = gomp_map_vars (acc_dev, mapnum, &hostaddrs, &devaddrs, &sizes,
|
|
|
349 &kinds, true, GOMP_MAP_VARS_OPENACC);
|
|
|
350 }
|
|
|
351
|
|
|
352 gomp_mutex_lock (&acc_dev->lock);
|
|
|
353 tgt->prev = acc_dev->openacc.data_environ;
|
|
|
354 acc_dev->openacc.data_environ = tgt;
|
|
|
355 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
356 }
|
|
|
357
|
|
|
358 void
|
|
|
359 acc_unmap_data (void *h)
|
|
|
360 {
|
|
|
361 struct goacc_thread *thr = goacc_thread ();
|
|
|
362 struct gomp_device_descr *acc_dev = thr->dev;
|
|
|
363
|
|
|
364 /* No need to call lazy open, as the address must have been mapped. */
|
|
|
365
|
|
|
366 /* This is a no-op on shared-memory targets. */
|
|
|
367 if (acc_dev->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM)
|
|
|
368 return;
|
|
|
369
|
|
|
370 size_t host_size;
|
|
|
371
|
|
|
372 gomp_mutex_lock (&acc_dev->lock);
|
|
|
373
|
|
|
374 splay_tree_key n = lookup_host (acc_dev, h, 1);
|
|
|
375 struct target_mem_desc *t;
|
|
|
376
|
|
|
377 if (!n)
|
|
|
378 {
|
|
|
379 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
380 gomp_fatal ("%p is not a mapped block", (void *)h);
|
|
|
381 }
|
|
|
382
|
|
|
383 host_size = n->host_end - n->host_start;
|
|
|
384
|
|
|
385 if (n->host_start != (uintptr_t) h)
|
|
|
386 {
|
|
|
387 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
388 gomp_fatal ("[%p,%d] surrounds %p",
|
|
|
389 (void *) n->host_start, (int) host_size, (void *) h);
|
|
|
390 }
|
|
|
391
|
|
|
392 t = n->tgt;
|
|
|
393
|
|
|
394 if (t->refcount == 2)
|
|
|
395 {
|
|
|
396 struct target_mem_desc *tp;
|
|
|
397
|
|
|
398 /* This is the last reference, so pull the descriptor off the
|
|
|
399 chain. This avoids gomp_unmap_vars via gomp_unmap_tgt from
|
|
|
400 freeing the device memory. */
|
|
|
401 t->tgt_end = 0;
|
|
|
402 t->to_free = 0;
|
|
|
403
|
|
|
404 for (tp = NULL, t = acc_dev->openacc.data_environ; t != NULL;
|
|
|
405 tp = t, t = t->prev)
|
|
|
406 if (n->tgt == t)
|
|
|
407 {
|
|
|
408 if (tp)
|
|
|
409 tp->prev = t->prev;
|
|
|
410 else
|
|
|
411 acc_dev->openacc.data_environ = t->prev;
|
|
|
412
|
|
|
413 break;
|
|
|
414 }
|
|
|
415 }
|
|
|
416
|
|
|
417 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
418
|
|
|
419 gomp_unmap_vars (t, true);
|
|
|
420 }
|
|
|
421
|
|
|
422 #define FLAG_PRESENT (1 << 0)
|
|
|
423 #define FLAG_CREATE (1 << 1)
|
|
|
424 #define FLAG_COPY (1 << 2)
|
|
|
425
|
|
|
426 static void *
|
|
|
427 present_create_copy (unsigned f, void *h, size_t s)
|
|
|
428 {
|
|
|
429 void *d;
|
|
|
430 splay_tree_key n;
|
|
|
431
|
|
|
432 if (!h || !s)
|
|
|
433 gomp_fatal ("[%p,+%d] is a bad range", (void *)h, (int)s);
|
|
|
434
|
|
|
435 goacc_lazy_initialize ();
|
|
|
436
|
|
|
437 struct goacc_thread *thr = goacc_thread ();
|
|
|
438 struct gomp_device_descr *acc_dev = thr->dev;
|
|
|
439
|
|
|
440 if (acc_dev->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM)
|
|
|
441 return h;
|
|
|
442
|
|
|
443 gomp_mutex_lock (&acc_dev->lock);
|
|
|
444
|
|
|
445 n = lookup_host (acc_dev, h, s);
|
|
|
446 if (n)
|
|
|
447 {
|
|
|
448 /* Present. */
|
|
|
449 d = (void *) (n->tgt->tgt_start + n->tgt_offset);
|
|
|
450
|
|
|
451 if (!(f & FLAG_PRESENT))
|
|
|
452 {
|
|
|
453 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
454 gomp_fatal ("[%p,+%d] already mapped to [%p,+%d]",
|
|
|
455 (void *)h, (int)s, (void *)d, (int)s);
|
|
|
456 }
|
|
|
457 if ((h + s) > (void *)n->host_end)
|
|
|
458 {
|
|
|
459 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
460 gomp_fatal ("[%p,+%d] not mapped", (void *)h, (int)s);
|
|
|
461 }
|
|
|
462
|
|
|
463 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
464 }
|
|
|
465 else if (!(f & FLAG_CREATE))
|
|
|
466 {
|
|
|
467 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
468 gomp_fatal ("[%p,+%d] not mapped", (void *)h, (int)s);
|
|
|
469 }
|
|
|
470 else
|
|
|
471 {
|
|
|
472 struct target_mem_desc *tgt;
|
|
|
473 size_t mapnum = 1;
|
|
|
474 unsigned short kinds;
|
|
|
475 void *hostaddrs = h;
|
|
|
476
|
|
|
477 if (f & FLAG_COPY)
|
|
|
478 kinds = GOMP_MAP_TO;
|
|
|
479 else
|
|
|
480 kinds = GOMP_MAP_ALLOC;
|
|
|
481
|
|
|
482 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
483
|
|
|
484 tgt = gomp_map_vars (acc_dev, mapnum, &hostaddrs, NULL, &s, &kinds, true,
|
|
|
485 GOMP_MAP_VARS_OPENACC);
|
|
|
486
|
|
|
487 gomp_mutex_lock (&acc_dev->lock);
|
|
|
488
|
|
|
489 d = tgt->to_free;
|
|
|
490 tgt->prev = acc_dev->openacc.data_environ;
|
|
|
491 acc_dev->openacc.data_environ = tgt;
|
|
|
492
|
|
|
493 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
494 }
|
|
|
495
|
|
|
496 return d;
|
|
|
497 }
|
|
|
498
|
|
|
499 void *
|
|
|
500 acc_create (void *h, size_t s)
|
|
|
501 {
|
|
|
502 return present_create_copy (FLAG_CREATE, h, s);
|
|
|
503 }
|
|
|
504
|
|
|
505 void *
|
|
|
506 acc_copyin (void *h, size_t s)
|
|
|
507 {
|
|
|
508 return present_create_copy (FLAG_CREATE | FLAG_COPY, h, s);
|
|
|
509 }
|
|
|
510
|
|
|
511 void *
|
|
|
512 acc_present_or_create (void *h, size_t s)
|
|
|
513 {
|
|
|
514 return present_create_copy (FLAG_PRESENT | FLAG_CREATE, h, s);
|
|
|
515 }
|
|
|
516
|
|
|
517 /* acc_pcreate is acc_present_or_create by a different name. */
|
|
|
518 #ifdef HAVE_ATTRIBUTE_ALIAS
|
|
|
519 strong_alias (acc_present_or_create, acc_pcreate)
|
|
|
520 #else
|
|
|
521 void *
|
|
|
522 acc_pcreate (void *h, size_t s)
|
|
|
523 {
|
|
|
524 return acc_present_or_create (h, s);
|
|
|
525 }
|
|
|
526 #endif
|
|
|
527
|
|
|
528 void *
|
|
|
529 acc_present_or_copyin (void *h, size_t s)
|
|
|
530 {
|
|
|
531 return present_create_copy (FLAG_PRESENT | FLAG_CREATE | FLAG_COPY, h, s);
|
|
|
532 }
|
|
|
533
|
|
|
534 /* acc_pcopyin is acc_present_or_copyin by a different name. */
|
|
|
535 #ifdef HAVE_ATTRIBUTE_ALIAS
|
|
|
536 strong_alias (acc_present_or_copyin, acc_pcopyin)
|
|
|
537 #else
|
|
|
538 void *
|
|
|
539 acc_pcopyin (void *h, size_t s)
|
|
|
540 {
|
|
|
541 return acc_present_or_copyin (h, s);
|
|
|
542 }
|
|
|
543 #endif
|
|
|
544
|
|
|
545 #define FLAG_COPYOUT (1 << 0)
|
|
|
546
|
|
|
547 static void
|
|
|
548 delete_copyout (unsigned f, void *h, size_t s, const char *libfnname)
|
|
|
549 {
|
|
|
550 size_t host_size;
|
|
|
551 splay_tree_key n;
|
|
|
552 void *d;
|
|
|
553 struct goacc_thread *thr = goacc_thread ();
|
|
|
554 struct gomp_device_descr *acc_dev = thr->dev;
|
|
|
555
|
|
|
556 if (acc_dev->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM)
|
|
|
557 return;
|
|
|
558
|
|
|
559 gomp_mutex_lock (&acc_dev->lock);
|
|
|
560
|
|
|
561 n = lookup_host (acc_dev, h, s);
|
|
|
562
|
|
|
563 /* No need to call lazy open, as the data must already have been
|
|
|
564 mapped. */
|
|
|
565
|
|
|
566 if (!n)
|
|
|
567 {
|
|
|
568 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
569 gomp_fatal ("[%p,%d] is not mapped", (void *)h, (int)s);
|
|
|
570 }
|
|
|
571
|
|
|
572 d = (void *) (n->tgt->tgt_start + n->tgt_offset
|
|
|
573 + (uintptr_t) h - n->host_start);
|
|
|
574
|
|
|
575 host_size = n->host_end - n->host_start;
|
|
|
576
|
|
|
577 if (n->host_start != (uintptr_t) h || host_size != s)
|
|
|
578 {
|
|
|
579 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
580 gomp_fatal ("[%p,%d] surrounds2 [%p,+%d]",
|
|
|
581 (void *) n->host_start, (int) host_size, (void *) h, (int) s);
|
|
|
582 }
|
|
|
583
|
|
|
584 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
585
|
|
|
586 if (f & FLAG_COPYOUT)
|
|
|
587 acc_dev->dev2host_func (acc_dev->target_id, h, d, s);
|
|
|
588
|
|
|
589 acc_unmap_data (h);
|
|
|
590
|
|
|
591 if (!acc_dev->free_func (acc_dev->target_id, d))
|
|
|
592 gomp_fatal ("error in freeing device memory in %s", libfnname);
|
|
|
593 }
|
|
|
594
|
|
|
595 void
|
|
|
596 acc_delete (void *h , size_t s)
|
|
|
597 {
|
|
|
598 delete_copyout (0, h, s, __FUNCTION__);
|
|
|
599 }
|
|
|
600
|
|
|
601 void
|
|
|
602 acc_copyout (void *h, size_t s)
|
|
|
603 {
|
|
|
604 delete_copyout (FLAG_COPYOUT, h, s, __FUNCTION__);
|
|
|
605 }
|
|
|
606
|
|
|
607 static void
|
|
|
608 update_dev_host (int is_dev, void *h, size_t s)
|
|
|
609 {
|
|
|
610 splay_tree_key n;
|
|
|
611 void *d;
|
|
|
612
|
|
|
613 goacc_lazy_initialize ();
|
|
|
614
|
|
|
615 struct goacc_thread *thr = goacc_thread ();
|
|
|
616 struct gomp_device_descr *acc_dev = thr->dev;
|
|
|
617
|
|
|
618 if (acc_dev->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM)
|
|
|
619 return;
|
|
|
620
|
|
|
621 gomp_mutex_lock (&acc_dev->lock);
|
|
|
622
|
|
|
623 n = lookup_host (acc_dev, h, s);
|
|
|
624
|
|
|
625 if (!n)
|
|
|
626 {
|
|
|
627 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
628 gomp_fatal ("[%p,%d] is not mapped", h, (int)s);
|
|
|
629 }
|
|
|
630
|
|
|
631 d = (void *) (n->tgt->tgt_start + n->tgt_offset
|
|
|
632 + (uintptr_t) h - n->host_start);
|
|
|
633
|
|
|
634 if (is_dev)
|
|
|
635 acc_dev->host2dev_func (acc_dev->target_id, d, h, s);
|
|
|
636 else
|
|
|
637 acc_dev->dev2host_func (acc_dev->target_id, h, d, s);
|
|
|
638
|
|
|
639 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
640 }
|
|
|
641
|
|
|
642 void
|
|
|
643 acc_update_device (void *h, size_t s)
|
|
|
644 {
|
|
|
645 update_dev_host (1, h, s);
|
|
|
646 }
|
|
|
647
|
|
|
648 void
|
|
|
649 acc_update_self (void *h, size_t s)
|
|
|
650 {
|
|
|
651 update_dev_host (0, h, s);
|
|
|
652 }
|
|
|
653
|
|
|
654 void
|
|
|
655 gomp_acc_insert_pointer (size_t mapnum, void **hostaddrs, size_t *sizes,
|
|
|
656 void *kinds)
|
|
|
657 {
|
|
|
658 struct target_mem_desc *tgt;
|
|
|
659 struct goacc_thread *thr = goacc_thread ();
|
|
|
660 struct gomp_device_descr *acc_dev = thr->dev;
|
|
|
661
|
|
|
662 gomp_debug (0, " %s: prepare mappings\n", __FUNCTION__);
|
|
|
663 tgt = gomp_map_vars (acc_dev, mapnum, hostaddrs,
|
|
|
664 NULL, sizes, kinds, true, GOMP_MAP_VARS_OPENACC);
|
|
|
665 gomp_debug (0, " %s: mappings prepared\n", __FUNCTION__);
|
|
|
666
|
|
|
667 gomp_mutex_lock (&acc_dev->lock);
|
|
|
668 tgt->prev = acc_dev->openacc.data_environ;
|
|
|
669 acc_dev->openacc.data_environ = tgt;
|
|
|
670 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
671 }
|
|
|
672
|
|
|
673 void
|
|
|
674 gomp_acc_remove_pointer (void *h, bool force_copyfrom, int async, int mapnum)
|
|
|
675 {
|
|
|
676 struct goacc_thread *thr = goacc_thread ();
|
|
|
677 struct gomp_device_descr *acc_dev = thr->dev;
|
|
|
678 splay_tree_key n;
|
|
|
679 struct target_mem_desc *t;
|
|
|
680 int minrefs = (mapnum == 1) ? 2 : 3;
|
|
|
681
|
|
|
682 gomp_mutex_lock (&acc_dev->lock);
|
|
|
683
|
|
|
684 n = lookup_host (acc_dev, h, 1);
|
|
|
685
|
|
|
686 if (!n)
|
|
|
687 {
|
|
|
688 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
689 gomp_fatal ("%p is not a mapped block", (void *)h);
|
|
|
690 }
|
|
|
691
|
|
|
692 gomp_debug (0, " %s: restore mappings\n", __FUNCTION__);
|
|
|
693
|
|
|
694 t = n->tgt;
|
|
|
695
|
|
|
696 struct target_mem_desc *tp;
|
|
|
697
|
|
|
698 if (t->refcount == minrefs)
|
|
|
699 {
|
|
|
700 /* This is the last reference, so pull the descriptor off the
|
|
|
701 chain. This avoids gomp_unmap_vars via gomp_unmap_tgt from
|
|
|
702 freeing the device memory. */
|
|
|
703 t->tgt_end = 0;
|
|
|
704 t->to_free = 0;
|
|
|
705
|
|
|
706 for (tp = NULL, t = acc_dev->openacc.data_environ; t != NULL;
|
|
|
707 tp = t, t = t->prev)
|
|
|
708 {
|
|
|
709 if (n->tgt == t)
|
|
|
710 {
|
|
|
711 if (tp)
|
|
|
712 tp->prev = t->prev;
|
|
|
713 else
|
|
|
714 acc_dev->openacc.data_environ = t->prev;
|
|
|
715 break;
|
|
|
716 }
|
|
|
717 }
|
|
|
718 }
|
|
|
719
|
|
|
720 if (force_copyfrom)
|
|
|
721 t->list[0].copy_from = 1;
|
|
|
722
|
|
|
723 gomp_mutex_unlock (&acc_dev->lock);
|
|
|
724
|
|
|
725 /* If running synchronously, unmap immediately. */
|
|
|
726 if (async < acc_async_noval)
|
|
|
727 gomp_unmap_vars (t, true);
|
|
|
728 else
|
|
|
729 t->device_descr->openacc.register_async_cleanup_func (t, async);
|
|
|
730
|
|
|
731 gomp_debug (0, " %s: mappings restored\n", __FUNCTION__);
|
|
|
732 }
|
