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27#include "nouveau_drm.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
35void
36nouveau_gem_object_del(struct drm_gem_object *gem)
37{
38 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
39 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
40 struct ttm_buffer_object *bo = &nvbo->bo;
41 struct device *dev = drm->dev->dev;
42 int ret;
43
44 ret = pm_runtime_get_sync(dev);
45 if (WARN_ON(ret < 0 && ret != -EACCES))
46 return;
47
48 if (gem->import_attach)
49 drm_prime_gem_destroy(gem, nvbo->bo.sg);
50
51 drm_gem_object_release(gem);
52
53
54 gem->filp = NULL;
55 ttm_bo_unref(&bo);
56
57 pm_runtime_mark_last_busy(dev);
58 pm_runtime_put_autosuspend(dev);
59}
60
61int
62nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv)
63{
64 struct nouveau_cli *cli = nouveau_cli(file_priv);
65 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
66 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
67 struct nvkm_vma *vma;
68 struct device *dev = drm->dev->dev;
69 int ret;
70
71 if (!cli->vm)
72 return 0;
73
74 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, NULL);
75 if (ret)
76 return ret;
77
78 vma = nouveau_bo_vma_find(nvbo, cli->vm);
79 if (!vma) {
80 vma = kzalloc(sizeof(*vma), GFP_KERNEL);
81 if (!vma) {
82 ret = -ENOMEM;
83 goto out;
84 }
85
86 ret = pm_runtime_get_sync(dev);
87 if (ret < 0 && ret != -EACCES) {
88 kfree(vma);
89 goto out;
90 }
91
92 ret = nouveau_bo_vma_add(nvbo, cli->vm, vma);
93 if (ret)
94 kfree(vma);
95
96 pm_runtime_mark_last_busy(dev);
97 pm_runtime_put_autosuspend(dev);
98 } else {
99 vma->refcount++;
100 }
101
102out:
103 ttm_bo_unreserve(&nvbo->bo);
104 return ret;
105}
106
107static void
108nouveau_gem_object_delete(void *data)
109{
110 struct nvkm_vma *vma = data;
111 nvkm_vm_unmap(vma);
112 nvkm_vm_put(vma);
113 kfree(vma);
114}
115
116static void
117nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nvkm_vma *vma)
118{
119 const bool mapped = nvbo->bo.mem.mem_type != TTM_PL_SYSTEM;
120 struct reservation_object *resv = nvbo->bo.resv;
121 struct reservation_object_list *fobj;
122 struct fence *fence = NULL;
123
124 fobj = reservation_object_get_list(resv);
125
126 list_del(&vma->head);
127
128 if (fobj && fobj->shared_count > 1)
129 ttm_bo_wait(&nvbo->bo, true, false, false);
130 else if (fobj && fobj->shared_count == 1)
131 fence = rcu_dereference_protected(fobj->shared[0],
132 reservation_object_held(resv));
133 else
134 fence = reservation_object_get_excl(nvbo->bo.resv);
135
136 if (fence && mapped) {
137 nouveau_fence_work(fence, nouveau_gem_object_delete, vma);
138 } else {
139 if (mapped)
140 nvkm_vm_unmap(vma);
141 nvkm_vm_put(vma);
142 kfree(vma);
143 }
144}
145
146void
147nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv)
148{
149 struct nouveau_cli *cli = nouveau_cli(file_priv);
150 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
151 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
152 struct device *dev = drm->dev->dev;
153 struct nvkm_vma *vma;
154 int ret;
155
156 if (!cli->vm)
157 return;
158
159 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, NULL);
160 if (ret)
161 return;
162
163 vma = nouveau_bo_vma_find(nvbo, cli->vm);
164 if (vma) {
165 if (--vma->refcount == 0) {
166 ret = pm_runtime_get_sync(dev);
167 if (!WARN_ON(ret < 0 && ret != -EACCES)) {
168 nouveau_gem_object_unmap(nvbo, vma);
169 pm_runtime_mark_last_busy(dev);
170 pm_runtime_put_autosuspend(dev);
171 }
172 }
173 }
174 ttm_bo_unreserve(&nvbo->bo);
175}
176
177int
178nouveau_gem_new(struct drm_device *dev, int size, int align, uint32_t domain,
179 uint32_t tile_mode, uint32_t tile_flags,
180 struct nouveau_bo **pnvbo)
181{
182 struct nouveau_drm *drm = nouveau_drm(dev);
183 struct nouveau_bo *nvbo;
184 u32 flags = 0;
185 int ret;
186
187 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
188 flags |= TTM_PL_FLAG_VRAM;
189 if (domain & NOUVEAU_GEM_DOMAIN_GART)
190 flags |= TTM_PL_FLAG_TT;
191 if (!flags || domain & NOUVEAU_GEM_DOMAIN_CPU)
192 flags |= TTM_PL_FLAG_SYSTEM;
193
194 if (domain & NOUVEAU_GEM_DOMAIN_COHERENT)
195 flags |= TTM_PL_FLAG_UNCACHED;
196
197 ret = nouveau_bo_new(dev, size, align, flags, tile_mode,
198 tile_flags, NULL, NULL, pnvbo);
199 if (ret)
200 return ret;
201 nvbo = *pnvbo;
202
203
204
205
206
207 nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM |
208 NOUVEAU_GEM_DOMAIN_GART;
209 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA)
210 nvbo->valid_domains &= domain;
211
212
213
214 ret = drm_gem_object_init(dev, &nvbo->gem, nvbo->bo.mem.size);
215 if (ret) {
216 nouveau_bo_ref(NULL, pnvbo);
217 return -ENOMEM;
218 }
219
220 nvbo->bo.persistent_swap_storage = nvbo->gem.filp;
221 return 0;
222}
223
224static int
225nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
226 struct drm_nouveau_gem_info *rep)
227{
228 struct nouveau_cli *cli = nouveau_cli(file_priv);
229 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
230 struct nvkm_vma *vma;
231
232 if (is_power_of_2(nvbo->valid_domains))
233 rep->domain = nvbo->valid_domains;
234 else if (nvbo->bo.mem.mem_type == TTM_PL_TT)
235 rep->domain = NOUVEAU_GEM_DOMAIN_GART;
236 else
237 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
238 rep->offset = nvbo->bo.offset;
239 if (cli->vm) {
240 vma = nouveau_bo_vma_find(nvbo, cli->vm);
241 if (!vma)
242 return -EINVAL;
243
244 rep->offset = vma->offset;
245 }
246
247 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
248 rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.vma_node);
249 rep->tile_mode = nvbo->tile_mode;
250 rep->tile_flags = nvbo->tile_flags;
251 return 0;
252}
253
254int
255nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
256 struct drm_file *file_priv)
257{
258 struct nouveau_drm *drm = nouveau_drm(dev);
259 struct nouveau_cli *cli = nouveau_cli(file_priv);
260 struct nvkm_fb *fb = nvxx_fb(&drm->device);
261 struct drm_nouveau_gem_new *req = data;
262 struct nouveau_bo *nvbo = NULL;
263 int ret = 0;
264
265 if (!nvkm_fb_memtype_valid(fb, req->info.tile_flags)) {
266 NV_PRINTK(err, cli, "bad page flags: 0x%08x\n", req->info.tile_flags);
267 return -EINVAL;
268 }
269
270 ret = nouveau_gem_new(dev, req->info.size, req->align,
271 req->info.domain, req->info.tile_mode,
272 req->info.tile_flags, &nvbo);
273 if (ret)
274 return ret;
275
276 ret = drm_gem_handle_create(file_priv, &nvbo->gem, &req->info.handle);
277 if (ret == 0) {
278 ret = nouveau_gem_info(file_priv, &nvbo->gem, &req->info);
279 if (ret)
280 drm_gem_handle_delete(file_priv, req->info.handle);
281 }
282
283
284 drm_gem_object_unreference_unlocked(&nvbo->gem);
285 return ret;
286}
287
288static int
289nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
290 uint32_t write_domains, uint32_t valid_domains)
291{
292 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
293 struct ttm_buffer_object *bo = &nvbo->bo;
294 uint32_t domains = valid_domains & nvbo->valid_domains &
295 (write_domains ? write_domains : read_domains);
296 uint32_t pref_flags = 0, valid_flags = 0;
297
298 if (!domains)
299 return -EINVAL;
300
301 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
302 valid_flags |= TTM_PL_FLAG_VRAM;
303
304 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART)
305 valid_flags |= TTM_PL_FLAG_TT;
306
307 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
308 bo->mem.mem_type == TTM_PL_VRAM)
309 pref_flags |= TTM_PL_FLAG_VRAM;
310
311 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
312 bo->mem.mem_type == TTM_PL_TT)
313 pref_flags |= TTM_PL_FLAG_TT;
314
315 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
316 pref_flags |= TTM_PL_FLAG_VRAM;
317
318 else
319 pref_flags |= TTM_PL_FLAG_TT;
320
321 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags);
322
323 return 0;
324}
325
326struct validate_op {
327 struct list_head list;
328 struct ww_acquire_ctx ticket;
329};
330
331static void
332validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence,
333 struct drm_nouveau_gem_pushbuf_bo *pbbo)
334{
335 struct nouveau_bo *nvbo;
336 struct drm_nouveau_gem_pushbuf_bo *b;
337
338 while (!list_empty(&op->list)) {
339 nvbo = list_entry(op->list.next, struct nouveau_bo, entry);
340 b = &pbbo[nvbo->pbbo_index];
341
342 if (likely(fence))
343 nouveau_bo_fence(nvbo, fence, !!b->write_domains);
344
345 if (unlikely(nvbo->validate_mapped)) {
346 ttm_bo_kunmap(&nvbo->kmap);
347 nvbo->validate_mapped = false;
348 }
349
350 list_del(&nvbo->entry);
351 nvbo->reserved_by = NULL;
352 ttm_bo_unreserve_ticket(&nvbo->bo, &op->ticket);
353 drm_gem_object_unreference_unlocked(&nvbo->gem);
354 }
355}
356
357static void
358validate_fini(struct validate_op *op, struct nouveau_fence *fence,
359 struct drm_nouveau_gem_pushbuf_bo *pbbo)
360{
361 validate_fini_no_ticket(op, fence, pbbo);
362 ww_acquire_fini(&op->ticket);
363}
364
365static int
366validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
367 struct drm_nouveau_gem_pushbuf_bo *pbbo,
368 int nr_buffers, struct validate_op *op)
369{
370 struct nouveau_cli *cli = nouveau_cli(file_priv);
371 struct drm_device *dev = chan->drm->dev;
372 int trycnt = 0;
373 int ret, i;
374 struct nouveau_bo *res_bo = NULL;
375 LIST_HEAD(gart_list);
376 LIST_HEAD(vram_list);
377 LIST_HEAD(both_list);
378
379 ww_acquire_init(&op->ticket, &reservation_ww_class);
380retry:
381 if (++trycnt > 100000) {
382 NV_PRINTK(err, cli, "%s failed and gave up.\n", __func__);
383 return -EINVAL;
384 }
385
386 for (i = 0; i < nr_buffers; i++) {
387 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
388 struct drm_gem_object *gem;
389 struct nouveau_bo *nvbo;
390
391 gem = drm_gem_object_lookup(dev, file_priv, b->handle);
392 if (!gem) {
393 NV_PRINTK(err, cli, "Unknown handle 0x%08x\n", b->handle);
394 ret = -ENOENT;
395 break;
396 }
397 nvbo = nouveau_gem_object(gem);
398 if (nvbo == res_bo) {
399 res_bo = NULL;
400 drm_gem_object_unreference_unlocked(gem);
401 continue;
402 }
403
404 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
405 NV_PRINTK(err, cli, "multiple instances of buffer %d on "
406 "validation list\n", b->handle);
407 drm_gem_object_unreference_unlocked(gem);
408 ret = -EINVAL;
409 break;
410 }
411
412 ret = ttm_bo_reserve(&nvbo->bo, true, false, true, &op->ticket);
413 if (ret) {
414 list_splice_tail_init(&vram_list, &op->list);
415 list_splice_tail_init(&gart_list, &op->list);
416 list_splice_tail_init(&both_list, &op->list);
417 validate_fini_no_ticket(op, NULL, NULL);
418 if (unlikely(ret == -EDEADLK)) {
419 ret = ttm_bo_reserve_slowpath(&nvbo->bo, true,
420 &op->ticket);
421 if (!ret)
422 res_bo = nvbo;
423 }
424 if (unlikely(ret)) {
425 if (ret != -ERESTARTSYS)
426 NV_PRINTK(err, cli, "fail reserve\n");
427 break;
428 }
429 }
430
431 b->user_priv = (uint64_t)(unsigned long)nvbo;
432 nvbo->reserved_by = file_priv;
433 nvbo->pbbo_index = i;
434 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
435 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
436 list_add_tail(&nvbo->entry, &both_list);
437 else
438 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
439 list_add_tail(&nvbo->entry, &vram_list);
440 else
441 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
442 list_add_tail(&nvbo->entry, &gart_list);
443 else {
444 NV_PRINTK(err, cli, "invalid valid domains: 0x%08x\n",
445 b->valid_domains);
446 list_add_tail(&nvbo->entry, &both_list);
447 ret = -EINVAL;
448 break;
449 }
450 if (nvbo == res_bo)
451 goto retry;
452 }
453
454 ww_acquire_done(&op->ticket);
455 list_splice_tail(&vram_list, &op->list);
456 list_splice_tail(&gart_list, &op->list);
457 list_splice_tail(&both_list, &op->list);
458 if (ret)
459 validate_fini(op, NULL, NULL);
460 return ret;
461
462}
463
464static int
465validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli,
466 struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo,
467 uint64_t user_pbbo_ptr)
468{
469 struct nouveau_drm *drm = chan->drm;
470 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
471 (void __force __user *)(uintptr_t)user_pbbo_ptr;
472 struct nouveau_bo *nvbo;
473 int ret, relocs = 0;
474
475 list_for_each_entry(nvbo, list, entry) {
476 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
477
478 ret = nouveau_gem_set_domain(&nvbo->gem, b->read_domains,
479 b->write_domains,
480 b->valid_domains);
481 if (unlikely(ret)) {
482 NV_PRINTK(err, cli, "fail set_domain\n");
483 return ret;
484 }
485
486 ret = nouveau_bo_validate(nvbo, true, false);
487 if (unlikely(ret)) {
488 if (ret != -ERESTARTSYS)
489 NV_PRINTK(err, cli, "fail ttm_validate\n");
490 return ret;
491 }
492
493 ret = nouveau_fence_sync(nvbo, chan, !!b->write_domains, true);
494 if (unlikely(ret)) {
495 if (ret != -ERESTARTSYS)
496 NV_PRINTK(err, cli, "fail post-validate sync\n");
497 return ret;
498 }
499
500 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
501 if (nvbo->bo.offset == b->presumed.offset &&
502 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
503 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
504 (nvbo->bo.mem.mem_type == TTM_PL_TT &&
505 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
506 continue;
507
508 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
509 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
510 else
511 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
512 b->presumed.offset = nvbo->bo.offset;
513 b->presumed.valid = 0;
514 relocs++;
515
516 if (copy_to_user(&upbbo[nvbo->pbbo_index].presumed,
517 &b->presumed, sizeof(b->presumed)))
518 return -EFAULT;
519 }
520 }
521
522 return relocs;
523}
524
525static int
526nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
527 struct drm_file *file_priv,
528 struct drm_nouveau_gem_pushbuf_bo *pbbo,
529 uint64_t user_buffers, int nr_buffers,
530 struct validate_op *op, int *apply_relocs)
531{
532 struct nouveau_cli *cli = nouveau_cli(file_priv);
533 int ret;
534
535 INIT_LIST_HEAD(&op->list);
536
537 if (nr_buffers == 0)
538 return 0;
539
540 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
541 if (unlikely(ret)) {
542 if (ret != -ERESTARTSYS)
543 NV_PRINTK(err, cli, "validate_init\n");
544 return ret;
545 }
546
547 ret = validate_list(chan, cli, &op->list, pbbo, user_buffers);
548 if (unlikely(ret < 0)) {
549 if (ret != -ERESTARTSYS)
550 NV_PRINTK(err, cli, "validating bo list\n");
551 validate_fini(op, NULL, NULL);
552 return ret;
553 }
554 *apply_relocs = ret;
555 return 0;
556}
557
558static inline void
559u_free(void *addr)
560{
561 kvfree(addr);
562}
563
564static inline void *
565u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
566{
567 void *mem;
568 void __user *userptr = (void __force __user *)(uintptr_t)user;
569
570 size *= nmemb;
571
572 mem = kmalloc(size, GFP_KERNEL | __GFP_NOWARN);
573 if (!mem)
574 mem = vmalloc(size);
575 if (!mem)
576 return ERR_PTR(-ENOMEM);
577
578 if (copy_from_user(mem, userptr, size)) {
579 u_free(mem);
580 return ERR_PTR(-EFAULT);
581 }
582
583 return mem;
584}
585
586static int
587nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
588 struct drm_nouveau_gem_pushbuf *req,
589 struct drm_nouveau_gem_pushbuf_bo *bo)
590{
591 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
592 int ret = 0;
593 unsigned i;
594
595 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
596 if (IS_ERR(reloc))
597 return PTR_ERR(reloc);
598
599 for (i = 0; i < req->nr_relocs; i++) {
600 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
601 struct drm_nouveau_gem_pushbuf_bo *b;
602 struct nouveau_bo *nvbo;
603 uint32_t data;
604
605 if (unlikely(r->bo_index > req->nr_buffers)) {
606 NV_PRINTK(err, cli, "reloc bo index invalid\n");
607 ret = -EINVAL;
608 break;
609 }
610
611 b = &bo[r->bo_index];
612 if (b->presumed.valid)
613 continue;
614
615 if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
616 NV_PRINTK(err, cli, "reloc container bo index invalid\n");
617 ret = -EINVAL;
618 break;
619 }
620 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
621
622 if (unlikely(r->reloc_bo_offset + 4 >
623 nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
624 NV_PRINTK(err, cli, "reloc outside of bo\n");
625 ret = -EINVAL;
626 break;
627 }
628
629 if (!nvbo->kmap.virtual) {
630 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
631 &nvbo->kmap);
632 if (ret) {
633 NV_PRINTK(err, cli, "failed kmap for reloc\n");
634 break;
635 }
636 nvbo->validate_mapped = true;
637 }
638
639 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
640 data = b->presumed.offset + r->data;
641 else
642 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
643 data = (b->presumed.offset + r->data) >> 32;
644 else
645 data = r->data;
646
647 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
648 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
649 data |= r->tor;
650 else
651 data |= r->vor;
652 }
653
654 ret = ttm_bo_wait(&nvbo->bo, true, false, false);
655 if (ret) {
656 NV_PRINTK(err, cli, "reloc wait_idle failed: %d\n", ret);
657 break;
658 }
659
660 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
661 }
662
663 u_free(reloc);
664 return ret;
665}
666
667int
668nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
669 struct drm_file *file_priv)
670{
671 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
672 struct nouveau_cli *cli = nouveau_cli(file_priv);
673 struct nouveau_abi16_chan *temp;
674 struct nouveau_drm *drm = nouveau_drm(dev);
675 struct drm_nouveau_gem_pushbuf *req = data;
676 struct drm_nouveau_gem_pushbuf_push *push;
677 struct drm_nouveau_gem_pushbuf_bo *bo;
678 struct nouveau_channel *chan = NULL;
679 struct validate_op op;
680 struct nouveau_fence *fence = NULL;
681 int i, j, ret = 0, do_reloc = 0;
682
683 if (unlikely(!abi16))
684 return -ENOMEM;
685
686 list_for_each_entry(temp, &abi16->channels, head) {
687 if (temp->chan->chid == req->channel) {
688 chan = temp->chan;
689 break;
690 }
691 }
692
693 if (!chan)
694 return nouveau_abi16_put(abi16, -ENOENT);
695
696 req->vram_available = drm->gem.vram_available;
697 req->gart_available = drm->gem.gart_available;
698 if (unlikely(req->nr_push == 0))
699 goto out_next;
700
701 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
702 NV_PRINTK(err, cli, "pushbuf push count exceeds limit: %d max %d\n",
703 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
704 return nouveau_abi16_put(abi16, -EINVAL);
705 }
706
707 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
708 NV_PRINTK(err, cli, "pushbuf bo count exceeds limit: %d max %d\n",
709 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
710 return nouveau_abi16_put(abi16, -EINVAL);
711 }
712
713 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
714 NV_PRINTK(err, cli, "pushbuf reloc count exceeds limit: %d max %d\n",
715 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
716 return nouveau_abi16_put(abi16, -EINVAL);
717 }
718
719 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
720 if (IS_ERR(push))
721 return nouveau_abi16_put(abi16, PTR_ERR(push));
722
723 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
724 if (IS_ERR(bo)) {
725 u_free(push);
726 return nouveau_abi16_put(abi16, PTR_ERR(bo));
727 }
728
729
730 for (i = 0; i < req->nr_push; i++) {
731 if (push[i].bo_index >= req->nr_buffers) {
732 NV_PRINTK(err, cli, "push %d buffer not in list\n", i);
733 ret = -EINVAL;
734 goto out_prevalid;
735 }
736 }
737
738
739 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
740 req->nr_buffers, &op, &do_reloc);
741 if (ret) {
742 if (ret != -ERESTARTSYS)
743 NV_PRINTK(err, cli, "validate: %d\n", ret);
744 goto out_prevalid;
745 }
746
747
748 if (do_reloc) {
749 ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo);
750 if (ret) {
751 NV_PRINTK(err, cli, "reloc apply: %d\n", ret);
752 goto out;
753 }
754 }
755
756 if (chan->dma.ib_max) {
757 ret = nouveau_dma_wait(chan, req->nr_push + 1, 16);
758 if (ret) {
759 NV_PRINTK(err, cli, "nv50cal_space: %d\n", ret);
760 goto out;
761 }
762
763 for (i = 0; i < req->nr_push; i++) {
764 struct nouveau_bo *nvbo = (void *)(unsigned long)
765 bo[push[i].bo_index].user_priv;
766
767 nv50_dma_push(chan, nvbo, push[i].offset,
768 push[i].length);
769 }
770 } else
771 if (drm->device.info.chipset >= 0x25) {
772 ret = RING_SPACE(chan, req->nr_push * 2);
773 if (ret) {
774 NV_PRINTK(err, cli, "cal_space: %d\n", ret);
775 goto out;
776 }
777
778 for (i = 0; i < req->nr_push; i++) {
779 struct nouveau_bo *nvbo = (void *)(unsigned long)
780 bo[push[i].bo_index].user_priv;
781
782 OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2);
783 OUT_RING(chan, 0);
784 }
785 } else {
786 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
787 if (ret) {
788 NV_PRINTK(err, cli, "jmp_space: %d\n", ret);
789 goto out;
790 }
791
792 for (i = 0; i < req->nr_push; i++) {
793 struct nouveau_bo *nvbo = (void *)(unsigned long)
794 bo[push[i].bo_index].user_priv;
795 uint32_t cmd;
796
797 cmd = chan->push.vma.offset + ((chan->dma.cur + 2) << 2);
798 cmd |= 0x20000000;
799 if (unlikely(cmd != req->suffix0)) {
800 if (!nvbo->kmap.virtual) {
801 ret = ttm_bo_kmap(&nvbo->bo, 0,
802 nvbo->bo.mem.
803 num_pages,
804 &nvbo->kmap);
805 if (ret) {
806 WIND_RING(chan);
807 goto out;
808 }
809 nvbo->validate_mapped = true;
810 }
811
812 nouveau_bo_wr32(nvbo, (push[i].offset +
813 push[i].length - 8) / 4, cmd);
814 }
815
816 OUT_RING(chan, 0x20000000 |
817 (nvbo->bo.offset + push[i].offset));
818 OUT_RING(chan, 0);
819 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
820 OUT_RING(chan, 0);
821 }
822 }
823
824 ret = nouveau_fence_new(chan, false, &fence);
825 if (ret) {
826 NV_PRINTK(err, cli, "error fencing pushbuf: %d\n", ret);
827 WIND_RING(chan);
828 goto out;
829 }
830
831out:
832 validate_fini(&op, fence, bo);
833 nouveau_fence_unref(&fence);
834
835out_prevalid:
836 u_free(bo);
837 u_free(push);
838
839out_next:
840 if (chan->dma.ib_max) {
841 req->suffix0 = 0x00000000;
842 req->suffix1 = 0x00000000;
843 } else
844 if (drm->device.info.chipset >= 0x25) {
845 req->suffix0 = 0x00020000;
846 req->suffix1 = 0x00000000;
847 } else {
848 req->suffix0 = 0x20000000 |
849 (chan->push.vma.offset + ((chan->dma.cur + 2) << 2));
850 req->suffix1 = 0x00000000;
851 }
852
853 return nouveau_abi16_put(abi16, ret);
854}
855
856int
857nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
858 struct drm_file *file_priv)
859{
860 struct drm_nouveau_gem_cpu_prep *req = data;
861 struct drm_gem_object *gem;
862 struct nouveau_bo *nvbo;
863 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
864 bool write = !!(req->flags & NOUVEAU_GEM_CPU_PREP_WRITE);
865 int ret;
866
867 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
868 if (!gem)
869 return -ENOENT;
870 nvbo = nouveau_gem_object(gem);
871
872 if (no_wait)
873 ret = reservation_object_test_signaled_rcu(nvbo->bo.resv, write) ? 0 : -EBUSY;
874 else {
875 long lret;
876
877 lret = reservation_object_wait_timeout_rcu(nvbo->bo.resv, write, true, 30 * HZ);
878 if (!lret)
879 ret = -EBUSY;
880 else if (lret > 0)
881 ret = 0;
882 else
883 ret = lret;
884 }
885 nouveau_bo_sync_for_cpu(nvbo);
886 drm_gem_object_unreference_unlocked(gem);
887
888 return ret;
889}
890
891int
892nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
893 struct drm_file *file_priv)
894{
895 struct drm_nouveau_gem_cpu_fini *req = data;
896 struct drm_gem_object *gem;
897 struct nouveau_bo *nvbo;
898
899 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
900 if (!gem)
901 return -ENOENT;
902 nvbo = nouveau_gem_object(gem);
903
904 nouveau_bo_sync_for_device(nvbo);
905 drm_gem_object_unreference_unlocked(gem);
906 return 0;
907}
908
909int
910nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
911 struct drm_file *file_priv)
912{
913 struct drm_nouveau_gem_info *req = data;
914 struct drm_gem_object *gem;
915 int ret;
916
917 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
918 if (!gem)
919 return -ENOENT;
920
921 ret = nouveau_gem_info(file_priv, gem, req);
922 drm_gem_object_unreference_unlocked(gem);
923 return ret;
924}
925
926
