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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
[cris-mirror.git] / drivers / gpu / drm / nouveau / nouveau_gem.c
blobe72a7e37eb0af435851ddd5e25da26a5afa25965
1 /*
2 * Copyright (C) 2008 Ben Skeggs.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 */
26
27 #include "nouveau_drv.h"
28 #include "nouveau_dma.h"
29 #include "nouveau_fence.h"
30 #include "nouveau_abi16.h"
31
32 #include "nouveau_ttm.h"
33 #include "nouveau_gem.h"
34 #include "nouveau_mem.h"
35 #include "nouveau_vmm.h"
36
37 #include <nvif/class.h>
38
39 void
40 nouveau_gem_object_del(struct drm_gem_object *gem)
41 {
42 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
43 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
44 struct ttm_buffer_object *bo = &nvbo->bo;
45 struct device *dev = drm->dev->dev;
46 int ret;
47
48 ret = pm_runtime_get_sync(dev);
49 if (WARN_ON(ret < 0 && ret != -EACCES))
50 return;
51
52 if (gem->import_attach)
53 drm_prime_gem_destroy(gem, nvbo->bo.sg);
54
55 drm_gem_object_release(gem);
56
57 /* reset filp so nouveau_bo_del_ttm() can test for it */
58 gem->filp = NULL;
59 ttm_bo_unref(&bo);
60
61 pm_runtime_mark_last_busy(dev);
62 pm_runtime_put_autosuspend(dev);
63 }
64
65 int
66 nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv)
67 {
68 struct nouveau_cli *cli = nouveau_cli(file_priv);
69 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
70 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
71 struct device *dev = drm->dev->dev;
72 struct nouveau_vma *vma;
73 int ret;
74
75 if (cli->vmm.vmm.object.oclass < NVIF_CLASS_VMM_NV50)
76 return 0;
77
78 ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
79 if (ret)
80 return ret;
81
82 ret = pm_runtime_get_sync(dev);
83 if (ret < 0 && ret != -EACCES)
84 goto out;
85
86 ret = nouveau_vma_new(nvbo, &cli->vmm, &vma);
87 pm_runtime_mark_last_busy(dev);
88 pm_runtime_put_autosuspend(dev);
89 out:
90 ttm_bo_unreserve(&nvbo->bo);
91 return ret;
92 }
93
94 struct nouveau_gem_object_unmap {
95 struct nouveau_cli_work work;
96 struct nouveau_vma *vma;
97 };
98
99 static void
100 nouveau_gem_object_delete(struct nouveau_vma *vma)
101 {
102 nouveau_vma_del(&vma);
103 }
104
105 static void
106 nouveau_gem_object_delete_work(struct nouveau_cli_work *w)
107 {
108 struct nouveau_gem_object_unmap *work =
109 container_of(w, typeof(*work), work);
110 nouveau_gem_object_delete(work->vma);
111 kfree(work);
112 }
113
114 static void
115 nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nouveau_vma *vma)
116 {
117 const bool mapped = nvbo->bo.mem.mem_type != TTM_PL_SYSTEM;
118 struct reservation_object *resv = nvbo->bo.resv;
119 struct reservation_object_list *fobj;
120 struct nouveau_gem_object_unmap *work;
121 struct dma_fence *fence = NULL;
122
123 fobj = reservation_object_get_list(resv);
124
125 list_del_init(&vma->head);
126
127 if (fobj && fobj->shared_count > 1)
128 ttm_bo_wait(&nvbo->bo, false, false);
129 else if (fobj && fobj->shared_count == 1)
130 fence = rcu_dereference_protected(fobj->shared[0],
131 reservation_object_held(resv));
132 else
133 fence = reservation_object_get_excl(nvbo->bo.resv);
134
135 if (!fence || !mapped) {
136 nouveau_gem_object_delete(vma);
137 return;
138 }
139
140 if (!(work = kmalloc(sizeof(*work), GFP_KERNEL))) {
141 WARN_ON(dma_fence_wait_timeout(fence, false, 2 * HZ) <= 0);
142 nouveau_gem_object_delete(vma);
143 return;
144 }
145
146 work->work.func = nouveau_gem_object_delete_work;
147 work->vma = vma;
148 nouveau_cli_work_queue(vma->vmm->cli, fence, &work->work);
149 }
150
151 void
152 nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv)
153 {
154 struct nouveau_cli *cli = nouveau_cli(file_priv);
155 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
156 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
157 struct device *dev = drm->dev->dev;
158 struct nouveau_vma *vma;
159 int ret;
160
161 if (cli->vmm.vmm.object.oclass < NVIF_CLASS_VMM_NV50)
162 return;
163
164 ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
165 if (ret)
166 return;
167
168 vma = nouveau_vma_find(nvbo, &cli->vmm);
169 if (vma) {
170 if (--vma->refs == 0) {
171 ret = pm_runtime_get_sync(dev);
172 if (!WARN_ON(ret < 0 && ret != -EACCES)) {
173 nouveau_gem_object_unmap(nvbo, vma);
174 pm_runtime_mark_last_busy(dev);
175 pm_runtime_put_autosuspend(dev);
176 }
177 }
178 }
179 ttm_bo_unreserve(&nvbo->bo);
180 }
181
182 int
183 nouveau_gem_new(struct nouveau_cli *cli, u64 size, int align, uint32_t domain,
184 uint32_t tile_mode, uint32_t tile_flags,
185 struct nouveau_bo **pnvbo)
186 {
187 struct nouveau_drm *drm = cli->drm;
188 struct nouveau_bo *nvbo;
189 u32 flags = 0;
190 int ret;
191
192 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
193 flags |= TTM_PL_FLAG_VRAM;
194 if (domain & NOUVEAU_GEM_DOMAIN_GART)
195 flags |= TTM_PL_FLAG_TT;
196 if (!flags || domain & NOUVEAU_GEM_DOMAIN_CPU)
197 flags |= TTM_PL_FLAG_SYSTEM;
198
199 if (domain & NOUVEAU_GEM_DOMAIN_COHERENT)
200 flags |= TTM_PL_FLAG_UNCACHED;
201
202 ret = nouveau_bo_new(cli, size, align, flags, tile_mode,
203 tile_flags, NULL, NULL, pnvbo);
204 if (ret)
205 return ret;
206 nvbo = *pnvbo;
207
208 /* we restrict allowed domains on nv50+ to only the types
209 * that were requested at creation time. not possibly on
210 * earlier chips without busting the ABI.
211 */
212 nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM |
213 NOUVEAU_GEM_DOMAIN_GART;
214 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)
215 nvbo->valid_domains &= domain;
216
217 /* Initialize the embedded gem-object. We return a single gem-reference
218 * to the caller, instead of a normal nouveau_bo ttm reference. */
219 ret = drm_gem_object_init(drm->dev, &nvbo->gem, nvbo->bo.mem.size);
220 if (ret) {
221 nouveau_bo_ref(NULL, pnvbo);
222 return -ENOMEM;
223 }
224
225 nvbo->bo.persistent_swap_storage = nvbo->gem.filp;
226 return 0;
227 }
228
229 static int
230 nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
231 struct drm_nouveau_gem_info *rep)
232 {
233 struct nouveau_cli *cli = nouveau_cli(file_priv);
234 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
235 struct nouveau_vma *vma;
236
237 if (is_power_of_2(nvbo->valid_domains))
238 rep->domain = nvbo->valid_domains;
239 else if (nvbo->bo.mem.mem_type == TTM_PL_TT)
240 rep->domain = NOUVEAU_GEM_DOMAIN_GART;
241 else
242 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
243 rep->offset = nvbo->bo.offset;
244 if (cli->vmm.vmm.object.oclass >= NVIF_CLASS_VMM_NV50) {
245 vma = nouveau_vma_find(nvbo, &cli->vmm);
246 if (!vma)
247 return -EINVAL;
248
249 rep->offset = vma->addr;
250 }
251
252 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
253 rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.vma_node);
254 rep->tile_mode = nvbo->mode;
255 rep->tile_flags = nvbo->contig ? 0 : NOUVEAU_GEM_TILE_NONCONTIG;
256 if (cli->device.info.family >= NV_DEVICE_INFO_V0_FERMI)
257 rep->tile_flags |= nvbo->kind << 8;
258 else
259 if (cli->device.info.family >= NV_DEVICE_INFO_V0_TESLA)
260 rep->tile_flags |= nvbo->kind << 8 | nvbo->comp << 16;
261 else
262 rep->tile_flags |= nvbo->zeta;
263 return 0;
264 }
265
266 int
267 nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
268 struct drm_file *file_priv)
269 {
270 struct nouveau_cli *cli = nouveau_cli(file_priv);
271 struct drm_nouveau_gem_new *req = data;
272 struct nouveau_bo *nvbo = NULL;
273 int ret = 0;
274
275 ret = nouveau_gem_new(cli, req->info.size, req->align,
276 req->info.domain, req->info.tile_mode,
277 req->info.tile_flags, &nvbo);
278 if (ret)
279 return ret;
280
281 ret = drm_gem_handle_create(file_priv, &nvbo->gem, &req->info.handle);
282 if (ret == 0) {
283 ret = nouveau_gem_info(file_priv, &nvbo->gem, &req->info);
284 if (ret)
285 drm_gem_handle_delete(file_priv, req->info.handle);
286 }
287
288 /* drop reference from allocate - handle holds it now */
289 drm_gem_object_unreference_unlocked(&nvbo->gem);
290 return ret;
291 }
292
293 static int
294 nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
295 uint32_t write_domains, uint32_t valid_domains)
296 {
297 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
298 struct ttm_buffer_object *bo = &nvbo->bo;
299 uint32_t domains = valid_domains & nvbo->valid_domains &
300 (write_domains ? write_domains : read_domains);
301 uint32_t pref_flags = 0, valid_flags = 0;
302
303 if (!domains)
304 return -EINVAL;
305
306 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
307 valid_flags |= TTM_PL_FLAG_VRAM;
308
309 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART)
310 valid_flags |= TTM_PL_FLAG_TT;
311
312 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
313 bo->mem.mem_type == TTM_PL_VRAM)
314 pref_flags |= TTM_PL_FLAG_VRAM;
315
316 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
317 bo->mem.mem_type == TTM_PL_TT)
318 pref_flags |= TTM_PL_FLAG_TT;
319
320 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
321 pref_flags |= TTM_PL_FLAG_VRAM;
322
323 else
324 pref_flags |= TTM_PL_FLAG_TT;
325
326 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags);
327
328 return 0;
329 }
330
331 struct validate_op {
332 struct list_head list;
333 struct ww_acquire_ctx ticket;
334 };
335
336 static void
337 validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence,
338 struct drm_nouveau_gem_pushbuf_bo *pbbo)
339 {
340 struct nouveau_bo *nvbo;
341 struct drm_nouveau_gem_pushbuf_bo *b;
342
343 while (!list_empty(&op->list)) {
344 nvbo = list_entry(op->list.next, struct nouveau_bo, entry);
345 b = &pbbo[nvbo->pbbo_index];
346
347 if (likely(fence))
348 nouveau_bo_fence(nvbo, fence, !!b->write_domains);
349
350 if (unlikely(nvbo->validate_mapped)) {
351 ttm_bo_kunmap(&nvbo->kmap);
352 nvbo->validate_mapped = false;
353 }
354
355 list_del(&nvbo->entry);
356 nvbo->reserved_by = NULL;
357 ttm_bo_unreserve(&nvbo->bo);
358 drm_gem_object_unreference_unlocked(&nvbo->gem);
359 }
360 }
361
362 static void
363 validate_fini(struct validate_op *op, struct nouveau_fence *fence,
364 struct drm_nouveau_gem_pushbuf_bo *pbbo)
365 {
366 validate_fini_no_ticket(op, fence, pbbo);
367 ww_acquire_fini(&op->ticket);
368 }
369
370 static int
371 validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
372 struct drm_nouveau_gem_pushbuf_bo *pbbo,
373 int nr_buffers, struct validate_op *op)
374 {
375 struct nouveau_cli *cli = nouveau_cli(file_priv);
376 int trycnt = 0;
377 int ret = -EINVAL, i;
378 struct nouveau_bo *res_bo = NULL;
379 LIST_HEAD(gart_list);
380 LIST_HEAD(vram_list);
381 LIST_HEAD(both_list);
382
383 ww_acquire_init(&op->ticket, &reservation_ww_class);
384 retry:
385 if (++trycnt > 100000) {
386 NV_PRINTK(err, cli, "%s failed and gave up.\n", __func__);
387 return -EINVAL;
388 }
389
390 for (i = 0; i < nr_buffers; i++) {
391 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
392 struct drm_gem_object *gem;
393 struct nouveau_bo *nvbo;
394
395 gem = drm_gem_object_lookup(file_priv, b->handle);
396 if (!gem) {
397 NV_PRINTK(err, cli, "Unknown handle 0x%08x\n", b->handle);
398 ret = -ENOENT;
399 break;
400 }
401 nvbo = nouveau_gem_object(gem);
402 if (nvbo == res_bo) {
403 res_bo = NULL;
404 drm_gem_object_unreference_unlocked(gem);
405 continue;
406 }
407
408 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
409 NV_PRINTK(err, cli, "multiple instances of buffer %d on "
410 "validation list\n", b->handle);
411 drm_gem_object_unreference_unlocked(gem);
412 ret = -EINVAL;
413 break;
414 }
415
416 ret = ttm_bo_reserve(&nvbo->bo, true, false, &op->ticket);
417 if (ret) {
418 list_splice_tail_init(&vram_list, &op->list);
419 list_splice_tail_init(&gart_list, &op->list);
420 list_splice_tail_init(&both_list, &op->list);
421 validate_fini_no_ticket(op, NULL, NULL);
422 if (unlikely(ret == -EDEADLK)) {
423 ret = ttm_bo_reserve_slowpath(&nvbo->bo, true,
424 &op->ticket);
425 if (!ret)
426 res_bo = nvbo;
427 }
428 if (unlikely(ret)) {
429 if (ret != -ERESTARTSYS)
430 NV_PRINTK(err, cli, "fail reserve\n");
431 break;
432 }
433 }
434
435 b->user_priv = (uint64_t)(unsigned long)nvbo;
436 nvbo->reserved_by = file_priv;
437 nvbo->pbbo_index = i;
438 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
439 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
440 list_add_tail(&nvbo->entry, &both_list);
441 else
442 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
443 list_add_tail(&nvbo->entry, &vram_list);
444 else
445 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
446 list_add_tail(&nvbo->entry, &gart_list);
447 else {
448 NV_PRINTK(err, cli, "invalid valid domains: 0x%08x\n",
449 b->valid_domains);
450 list_add_tail(&nvbo->entry, &both_list);
451 ret = -EINVAL;
452 break;
453 }
454 if (nvbo == res_bo)
455 goto retry;
456 }
457
458 ww_acquire_done(&op->ticket);
459 list_splice_tail(&vram_list, &op->list);
460 list_splice_tail(&gart_list, &op->list);
461 list_splice_tail(&both_list, &op->list);
462 if (ret)
463 validate_fini(op, NULL, NULL);
464 return ret;
465
466 }
467
468 static int
469 validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli,
470 struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo,
471 uint64_t user_pbbo_ptr)
472 {
473 struct nouveau_drm *drm = chan->drm;
474 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
475 (void __force __user *)(uintptr_t)user_pbbo_ptr;
476 struct nouveau_bo *nvbo;
477 int ret, relocs = 0;
478
479 list_for_each_entry(nvbo, list, entry) {
480 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
481
482 ret = nouveau_gem_set_domain(&nvbo->gem, b->read_domains,
483 b->write_domains,
484 b->valid_domains);
485 if (unlikely(ret)) {
486 NV_PRINTK(err, cli, "fail set_domain\n");
487 return ret;
488 }
489
490 ret = nouveau_bo_validate(nvbo, true, false);
491 if (unlikely(ret)) {
492 if (ret != -ERESTARTSYS)
493 NV_PRINTK(err, cli, "fail ttm_validate\n");
494 return ret;
495 }
496
497 ret = nouveau_fence_sync(nvbo, chan, !!b->write_domains, true);
498 if (unlikely(ret)) {
499 if (ret != -ERESTARTSYS)
500 NV_PRINTK(err, cli, "fail post-validate sync\n");
501 return ret;
502 }
503
504 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
505 if (nvbo->bo.offset == b->presumed.offset &&
506 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
507 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
508 (nvbo->bo.mem.mem_type == TTM_PL_TT &&
509 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
510 continue;
511
512 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
513 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
514 else
515 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
516 b->presumed.offset = nvbo->bo.offset;
517 b->presumed.valid = 0;
518 relocs++;
519
520 if (copy_to_user(&upbbo[nvbo->pbbo_index].presumed,
521 &b->presumed, sizeof(b->presumed)))
522 return -EFAULT;
523 }
524 }
525
526 return relocs;
527 }
528
529 static int
530 nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
531 struct drm_file *file_priv,
532 struct drm_nouveau_gem_pushbuf_bo *pbbo,
533 uint64_t user_buffers, int nr_buffers,
534 struct validate_op *op, int *apply_relocs)
535 {
536 struct nouveau_cli *cli = nouveau_cli(file_priv);
537 int ret;
538
539 INIT_LIST_HEAD(&op->list);
540
541 if (nr_buffers == 0)
542 return 0;
543
544 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
545 if (unlikely(ret)) {
546 if (ret != -ERESTARTSYS)
547 NV_PRINTK(err, cli, "validate_init\n");
548 return ret;
549 }
550
551 ret = validate_list(chan, cli, &op->list, pbbo, user_buffers);
552 if (unlikely(ret < 0)) {
553 if (ret != -ERESTARTSYS)
554 NV_PRINTK(err, cli, "validating bo list\n");
555 validate_fini(op, NULL, NULL);
556 return ret;
557 }
558 *apply_relocs = ret;
559 return 0;
560 }
561
562 static inline void
563 u_free(void *addr)
564 {
565 kvfree(addr);
566 }
567
568 static inline void *
569 u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
570 {
571 void *mem;
572 void __user *userptr = (void __force __user *)(uintptr_t)user;
573
574 size *= nmemb;
575
576 mem = kvmalloc(size, GFP_KERNEL);
577 if (!mem)
578 return ERR_PTR(-ENOMEM);
579
580 if (copy_from_user(mem, userptr, size)) {
581 u_free(mem);
582 return ERR_PTR(-EFAULT);
583 }
584
585 return mem;
586 }
587
588 static int
589 nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
590 struct drm_nouveau_gem_pushbuf *req,
591 struct drm_nouveau_gem_pushbuf_bo *bo)
592 {
593 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
594 int ret = 0;
595 unsigned i;
596
597 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
598 if (IS_ERR(reloc))
599 return PTR_ERR(reloc);
600
601 for (i = 0; i < req->nr_relocs; i++) {
602 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
603 struct drm_nouveau_gem_pushbuf_bo *b;
604 struct nouveau_bo *nvbo;
605 uint32_t data;
606
607 if (unlikely(r->bo_index > req->nr_buffers)) {
608 NV_PRINTK(err, cli, "reloc bo index invalid\n");
609 ret = -EINVAL;
610 break;
611 }
612
613 b = &bo[r->bo_index];
614 if (b->presumed.valid)
615 continue;
616
617 if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
618 NV_PRINTK(err, cli, "reloc container bo index invalid\n");
619 ret = -EINVAL;
620 break;
621 }
622 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
623
624 if (unlikely(r->reloc_bo_offset + 4 >
625 nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
626 NV_PRINTK(err, cli, "reloc outside of bo\n");
627 ret = -EINVAL;
628 break;
629 }
630
631 if (!nvbo->kmap.virtual) {
632 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
633 &nvbo->kmap);
634 if (ret) {
635 NV_PRINTK(err, cli, "failed kmap for reloc\n");
636 break;
637 }
638 nvbo->validate_mapped = true;
639 }
640
641 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
642 data = b->presumed.offset + r->data;
643 else
644 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
645 data = (b->presumed.offset + r->data) >> 32;
646 else
647 data = r->data;
648
649 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
650 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
651 data |= r->tor;
652 else
653 data |= r->vor;
654 }
655
656 ret = ttm_bo_wait(&nvbo->bo, false, false);
657 if (ret) {
658 NV_PRINTK(err, cli, "reloc wait_idle failed: %d\n", ret);
659 break;
660 }
661
662 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
663 }
664
665 u_free(reloc);
666 return ret;
667 }
668
669 int
670 nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
671 struct drm_file *file_priv)
672 {
673 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
674 struct nouveau_cli *cli = nouveau_cli(file_priv);
675 struct nouveau_abi16_chan *temp;
676 struct nouveau_drm *drm = nouveau_drm(dev);
677 struct drm_nouveau_gem_pushbuf *req = data;
678 struct drm_nouveau_gem_pushbuf_push *push;
679 struct drm_nouveau_gem_pushbuf_bo *bo;
680 struct nouveau_channel *chan = NULL;
681 struct validate_op op;
682 struct nouveau_fence *fence = NULL;
683 int i, j, ret = 0, do_reloc = 0;
684
685 if (unlikely(!abi16))
686 return -ENOMEM;
687
688 list_for_each_entry(temp, &abi16->channels, head) {
689 if (temp->chan->chid == req->channel) {
690 chan = temp->chan;
691 break;
692 }
693 }
694
695 if (!chan)
696 return nouveau_abi16_put(abi16, -ENOENT);
697
698 req->vram_available = drm->gem.vram_available;
699 req->gart_available = drm->gem.gart_available;
700 if (unlikely(req->nr_push == 0))
701 goto out_next;
702
703 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
704 NV_PRINTK(err, cli, "pushbuf push count exceeds limit: %d max %d\n",
705 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
706 return nouveau_abi16_put(abi16, -EINVAL);
707 }
708
709 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
710 NV_PRINTK(err, cli, "pushbuf bo count exceeds limit: %d max %d\n",
711 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
712 return nouveau_abi16_put(abi16, -EINVAL);
713 }
714
715 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
716 NV_PRINTK(err, cli, "pushbuf reloc count exceeds limit: %d max %d\n",
717 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
718 return nouveau_abi16_put(abi16, -EINVAL);
719 }
720
721 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
722 if (IS_ERR(push))
723 return nouveau_abi16_put(abi16, PTR_ERR(push));
724
725 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
726 if (IS_ERR(bo)) {
727 u_free(push);
728 return nouveau_abi16_put(abi16, PTR_ERR(bo));
729 }
730
731 /* Ensure all push buffers are on validate list */
732 for (i = 0; i < req->nr_push; i++) {
733 if (push[i].bo_index >= req->nr_buffers) {
734 NV_PRINTK(err, cli, "push %d buffer not in list\n", i);
735 ret = -EINVAL;
736 goto out_prevalid;
737 }
738 }
739
740 /* Validate buffer list */
741 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
742 req->nr_buffers, &op, &do_reloc);
743 if (ret) {
744 if (ret != -ERESTARTSYS)
745 NV_PRINTK(err, cli, "validate: %d\n", ret);
746 goto out_prevalid;
747 }
748
749 /* Apply any relocations that are required */
750 if (do_reloc) {
751 ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo);
752 if (ret) {
753 NV_PRINTK(err, cli, "reloc apply: %d\n", ret);
754 goto out;
755 }
756 }
757
758 if (chan->dma.ib_max) {
759 ret = nouveau_dma_wait(chan, req->nr_push + 1, 16);
760 if (ret) {
761 NV_PRINTK(err, cli, "nv50cal_space: %d\n", ret);
762 goto out;
763 }
764
765 for (i = 0; i < req->nr_push; i++) {
766 struct nouveau_bo *nvbo = (void *)(unsigned long)
767 bo[push[i].bo_index].user_priv;
768
769 nv50_dma_push(chan, nvbo, push[i].offset,
770 push[i].length);
771 }
772 } else
773 if (drm->client.device.info.chipset >= 0x25) {
774 ret = RING_SPACE(chan, req->nr_push * 2);
775 if (ret) {
776 NV_PRINTK(err, cli, "cal_space: %d\n", ret);
777 goto out;
778 }
779
780 for (i = 0; i < req->nr_push; i++) {
781 struct nouveau_bo *nvbo = (void *)(unsigned long)
782 bo[push[i].bo_index].user_priv;
783
784 OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2);
785 OUT_RING(chan, 0);
786 }
787 } else {
788 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
789 if (ret) {
790 NV_PRINTK(err, cli, "jmp_space: %d\n", ret);
791 goto out;
792 }
793
794 for (i = 0; i < req->nr_push; i++) {
795 struct nouveau_bo *nvbo = (void *)(unsigned long)
796 bo[push[i].bo_index].user_priv;
797 uint32_t cmd;
798
799 cmd = chan->push.addr + ((chan->dma.cur + 2) << 2);
800 cmd |= 0x20000000;
801 if (unlikely(cmd != req->suffix0)) {
802 if (!nvbo->kmap.virtual) {
803 ret = ttm_bo_kmap(&nvbo->bo, 0,
804 nvbo->bo.mem.
805 num_pages,
806 &nvbo->kmap);
807 if (ret) {
808 WIND_RING(chan);
809 goto out;
810 }
811 nvbo->validate_mapped = true;
812 }
813
814 nouveau_bo_wr32(nvbo, (push[i].offset +
815 push[i].length - 8) / 4, cmd);
816 }
817
818 OUT_RING(chan, 0x20000000 |
819 (nvbo->bo.offset + push[i].offset));
820 OUT_RING(chan, 0);
821 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
822 OUT_RING(chan, 0);
823 }
824 }
825
826 ret = nouveau_fence_new(chan, false, &fence);
827 if (ret) {
828 NV_PRINTK(err, cli, "error fencing pushbuf: %d\n", ret);
829 WIND_RING(chan);
830 goto out;
831 }
832
833 out:
834 validate_fini(&op, fence, bo);
835 nouveau_fence_unref(&fence);
836
837 out_prevalid:
838 u_free(bo);
839 u_free(push);
840
841 out_next:
842 if (chan->dma.ib_max) {
843 req->suffix0 = 0x00000000;
844 req->suffix1 = 0x00000000;
845 } else
846 if (drm->client.device.info.chipset >= 0x25) {
847 req->suffix0 = 0x00020000;
848 req->suffix1 = 0x00000000;
849 } else {
850 req->suffix0 = 0x20000000 |
851 (chan->push.addr + ((chan->dma.cur + 2) << 2));
852 req->suffix1 = 0x00000000;
853 }
854
855 return nouveau_abi16_put(abi16, ret);
856 }
857
858 int
859 nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
860 struct drm_file *file_priv)
861 {
862 struct drm_nouveau_gem_cpu_prep *req = data;
863 struct drm_gem_object *gem;
864 struct nouveau_bo *nvbo;
865 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
866 bool write = !!(req->flags & NOUVEAU_GEM_CPU_PREP_WRITE);
867 long lret;
868 int ret;
869
870 gem = drm_gem_object_lookup(file_priv, req->handle);
871 if (!gem)
872 return -ENOENT;
873 nvbo = nouveau_gem_object(gem);
874
875 lret = reservation_object_wait_timeout_rcu(nvbo->bo.resv, write, true,
876 no_wait ? 0 : 30 * HZ);
877 if (!lret)
878 ret = -EBUSY;
879 else if (lret > 0)
880 ret = 0;
881 else
882 ret = lret;
883
884 nouveau_bo_sync_for_cpu(nvbo);
885 drm_gem_object_unreference_unlocked(gem);
886
887 return ret;
888 }
889
890 int
891 nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
892 struct drm_file *file_priv)
893 {
894 struct drm_nouveau_gem_cpu_fini *req = data;
895 struct drm_gem_object *gem;
896 struct nouveau_bo *nvbo;
897
898 gem = drm_gem_object_lookup(file_priv, req->handle);
899 if (!gem)
900 return -ENOENT;
901 nvbo = nouveau_gem_object(gem);
902
903 nouveau_bo_sync_for_device(nvbo);
904 drm_gem_object_unreference_unlocked(gem);
905 return 0;
906 }
907
908 int
909 nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
910 struct drm_file *file_priv)
911 {
912 struct drm_nouveau_gem_info *req = data;
913 struct drm_gem_object *gem;
914 int ret;
915
916 gem = drm_gem_object_lookup(file_priv, req->handle);
917 if (!gem)
918 return -ENOENT;
919
920 ret = nouveau_gem_info(file_priv, gem, req);
921 drm_gem_object_unreference_unlocked(gem);
922 return ret;
923 }
924
CRIS linux kernel tree