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27#include <subdev/fb.h>
28
29#include "nouveau_drm.h"
30#include "nouveau_dma.h"
31#include "nouveau_fence.h"
32#include "nouveau_abi16.h"
33
34#include "nouveau_ttm.h"
35#include "nouveau_gem.h"
36
37void
38nouveau_gem_object_del(struct drm_gem_object *gem)
39{
40 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
41 struct ttm_buffer_object *bo = &nvbo->bo;
42
43 if (gem->import_attach)
44 drm_prime_gem_destroy(gem, nvbo->bo.sg);
45
46 drm_gem_object_release(gem);
47
48
49 gem->filp = NULL;
50 ttm_bo_unref(&bo);
51}
52
53int
54nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv)
55{
56 struct nouveau_cli *cli = nouveau_cli(file_priv);
57 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
58 struct nouveau_vma *vma;
59 int ret;
60
61 if (!cli->base.vm)
62 return 0;
63
64 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0);
65 if (ret)
66 return ret;
67
68 vma = nouveau_bo_vma_find(nvbo, cli->base.vm);
69 if (!vma) {
70 vma = kzalloc(sizeof(*vma), GFP_KERNEL);
71 if (!vma) {
72 ret = -ENOMEM;
73 goto out;
74 }
75
76 ret = nouveau_bo_vma_add(nvbo, cli->base.vm, vma);
77 if (ret) {
78 kfree(vma);
79 goto out;
80 }
81 } else {
82 vma->refcount++;
83 }
84
85out:
86 ttm_bo_unreserve(&nvbo->bo);
87 return ret;
88}
89
90static void
91nouveau_gem_object_delete(void *data)
92{
93 struct nouveau_vma *vma = data;
94 nouveau_vm_unmap(vma);
95 nouveau_vm_put(vma);
96 kfree(vma);
97}
98
99static void
100nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nouveau_vma *vma)
101{
102 const bool mapped = nvbo->bo.mem.mem_type != TTM_PL_SYSTEM;
103 struct nouveau_fence *fence = NULL;
104
105 list_del(&vma->head);
106
107 if (mapped) {
108 spin_lock(&nvbo->bo.bdev->fence_lock);
109 fence = nouveau_fence_ref(nvbo->bo.sync_obj);
110 spin_unlock(&nvbo->bo.bdev->fence_lock);
111 }
112
113 if (fence) {
114 nouveau_fence_work(fence, nouveau_gem_object_delete, vma);
115 } else {
116 if (mapped)
117 nouveau_vm_unmap(vma);
118 nouveau_vm_put(vma);
119 kfree(vma);
120 }
121 nouveau_fence_unref(&fence);
122}
123
124void
125nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv)
126{
127 struct nouveau_cli *cli = nouveau_cli(file_priv);
128 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
129 struct nouveau_vma *vma;
130 int ret;
131
132 if (!cli->base.vm)
133 return;
134
135 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0);
136 if (ret)
137 return;
138
139 vma = nouveau_bo_vma_find(nvbo, cli->base.vm);
140 if (vma) {
141 if (--vma->refcount == 0)
142 nouveau_gem_object_unmap(nvbo, vma);
143 }
144 ttm_bo_unreserve(&nvbo->bo);
145}
146
147int
148nouveau_gem_new(struct drm_device *dev, int size, int align, uint32_t domain,
149 uint32_t tile_mode, uint32_t tile_flags,
150 struct nouveau_bo **pnvbo)
151{
152 struct nouveau_drm *drm = nouveau_drm(dev);
153 struct nouveau_bo *nvbo;
154 u32 flags = 0;
155 int ret;
156
157 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
158 flags |= TTM_PL_FLAG_VRAM;
159 if (domain & NOUVEAU_GEM_DOMAIN_GART)
160 flags |= TTM_PL_FLAG_TT;
161 if (!flags || domain & NOUVEAU_GEM_DOMAIN_CPU)
162 flags |= TTM_PL_FLAG_SYSTEM;
163
164 ret = nouveau_bo_new(dev, size, align, flags, tile_mode,
165 tile_flags, NULL, pnvbo);
166 if (ret)
167 return ret;
168 nvbo = *pnvbo;
169
170
171
172
173
174 nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM |
175 NOUVEAU_GEM_DOMAIN_GART;
176 if (nv_device(drm->device)->card_type >= NV_50)
177 nvbo->valid_domains &= domain;
178
179
180
181 ret = drm_gem_object_init(dev, &nvbo->gem, nvbo->bo.mem.size);
182 if (ret) {
183 nouveau_bo_ref(NULL, pnvbo);
184 return -ENOMEM;
185 }
186
187 nvbo->bo.persistent_swap_storage = nvbo->gem.filp;
188 return 0;
189}
190
191static int
192nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
193 struct drm_nouveau_gem_info *rep)
194{
195 struct nouveau_cli *cli = nouveau_cli(file_priv);
196 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
197 struct nouveau_vma *vma;
198
199 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
200 rep->domain = NOUVEAU_GEM_DOMAIN_GART;
201 else
202 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
203
204 rep->offset = nvbo->bo.offset;
205 if (cli->base.vm) {
206 vma = nouveau_bo_vma_find(nvbo, cli->base.vm);
207 if (!vma)
208 return -EINVAL;
209
210 rep->offset = vma->offset;
211 }
212
213 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
214 rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.vma_node);
215 rep->tile_mode = nvbo->tile_mode;
216 rep->tile_flags = nvbo->tile_flags;
217 return 0;
218}
219
220int
221nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
222 struct drm_file *file_priv)
223{
224 struct nouveau_drm *drm = nouveau_drm(dev);
225 struct nouveau_cli *cli = nouveau_cli(file_priv);
226 struct nouveau_fb *pfb = nouveau_fb(drm->device);
227 struct drm_nouveau_gem_new *req = data;
228 struct nouveau_bo *nvbo = NULL;
229 int ret = 0;
230
231 drm->ttm.bdev.dev_mapping = drm->dev->dev_mapping;
232
233 if (!pfb->memtype_valid(pfb, req->info.tile_flags)) {
234 NV_ERROR(cli, "bad page flags: 0x%08x\n", req->info.tile_flags);
235 return -EINVAL;
236 }
237
238 ret = nouveau_gem_new(dev, req->info.size, req->align,
239 req->info.domain, req->info.tile_mode,
240 req->info.tile_flags, &nvbo);
241 if (ret)
242 return ret;
243
244 ret = drm_gem_handle_create(file_priv, &nvbo->gem, &req->info.handle);
245 if (ret == 0) {
246 ret = nouveau_gem_info(file_priv, &nvbo->gem, &req->info);
247 if (ret)
248 drm_gem_handle_delete(file_priv, req->info.handle);
249 }
250
251
252 drm_gem_object_unreference_unlocked(&nvbo->gem);
253 return ret;
254}
255
256static int
257nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
258 uint32_t write_domains, uint32_t valid_domains)
259{
260 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
261 struct ttm_buffer_object *bo = &nvbo->bo;
262 uint32_t domains = valid_domains & nvbo->valid_domains &
263 (write_domains ? write_domains : read_domains);
264 uint32_t pref_flags = 0, valid_flags = 0;
265
266 if (!domains)
267 return -EINVAL;
268
269 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
270 valid_flags |= TTM_PL_FLAG_VRAM;
271
272 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART)
273 valid_flags |= TTM_PL_FLAG_TT;
274
275 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
276 bo->mem.mem_type == TTM_PL_VRAM)
277 pref_flags |= TTM_PL_FLAG_VRAM;
278
279 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
280 bo->mem.mem_type == TTM_PL_TT)
281 pref_flags |= TTM_PL_FLAG_TT;
282
283 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
284 pref_flags |= TTM_PL_FLAG_VRAM;
285
286 else
287 pref_flags |= TTM_PL_FLAG_TT;
288
289 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags);
290
291 return 0;
292}
293
294struct validate_op {
295 struct list_head vram_list;
296 struct list_head gart_list;
297 struct list_head both_list;
298 struct ww_acquire_ctx ticket;
299};
300
301static void
302validate_fini_list(struct list_head *list, struct nouveau_fence *fence,
303 struct ww_acquire_ctx *ticket)
304{
305 struct list_head *entry, *tmp;
306 struct nouveau_bo *nvbo;
307
308 list_for_each_safe(entry, tmp, list) {
309 nvbo = list_entry(entry, struct nouveau_bo, entry);
310
311 if (likely(fence))
312 nouveau_bo_fence(nvbo, fence);
313
314 if (unlikely(nvbo->validate_mapped)) {
315 ttm_bo_kunmap(&nvbo->kmap);
316 nvbo->validate_mapped = false;
317 }
318
319 list_del(&nvbo->entry);
320 nvbo->reserved_by = NULL;
321 ttm_bo_unreserve_ticket(&nvbo->bo, ticket);
322 drm_gem_object_unreference_unlocked(&nvbo->gem);
323 }
324}
325
326static void
327validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence)
328{
329 validate_fini_list(&op->vram_list, fence, &op->ticket);
330 validate_fini_list(&op->gart_list, fence, &op->ticket);
331 validate_fini_list(&op->both_list, fence, &op->ticket);
332}
333
334static void
335validate_fini(struct validate_op *op, struct nouveau_fence *fence)
336{
337 validate_fini_no_ticket(op, fence);
338 ww_acquire_fini(&op->ticket);
339}
340
341static int
342validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
343 struct drm_nouveau_gem_pushbuf_bo *pbbo,
344 int nr_buffers, struct validate_op *op)
345{
346 struct nouveau_cli *cli = nouveau_cli(file_priv);
347 struct drm_device *dev = chan->drm->dev;
348 int trycnt = 0;
349 int ret, i;
350 struct nouveau_bo *res_bo = NULL;
351
352 ww_acquire_init(&op->ticket, &reservation_ww_class);
353retry:
354 if (++trycnt > 100000) {
355 NV_ERROR(cli, "%s failed and gave up.\n", __func__);
356 return -EINVAL;
357 }
358
359 for (i = 0; i < nr_buffers; i++) {
360 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
361 struct drm_gem_object *gem;
362 struct nouveau_bo *nvbo;
363
364 gem = drm_gem_object_lookup(dev, file_priv, b->handle);
365 if (!gem) {
366 NV_ERROR(cli, "Unknown handle 0x%08x\n", b->handle);
367 ww_acquire_done(&op->ticket);
368 validate_fini(op, NULL);
369 return -ENOENT;
370 }
371 nvbo = nouveau_gem_object(gem);
372 if (nvbo == res_bo) {
373 res_bo = NULL;
374 drm_gem_object_unreference_unlocked(gem);
375 continue;
376 }
377
378 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
379 NV_ERROR(cli, "multiple instances of buffer %d on "
380 "validation list\n", b->handle);
381 drm_gem_object_unreference_unlocked(gem);
382 ww_acquire_done(&op->ticket);
383 validate_fini(op, NULL);
384 return -EINVAL;
385 }
386
387 ret = ttm_bo_reserve(&nvbo->bo, true, false, true, &op->ticket);
388 if (ret) {
389 validate_fini_no_ticket(op, NULL);
390 if (unlikely(ret == -EDEADLK)) {
391 ret = ttm_bo_reserve_slowpath(&nvbo->bo, true,
392 &op->ticket);
393 if (!ret)
394 res_bo = nvbo;
395 }
396 if (unlikely(ret)) {
397 ww_acquire_done(&op->ticket);
398 ww_acquire_fini(&op->ticket);
399 drm_gem_object_unreference_unlocked(gem);
400 if (ret != -ERESTARTSYS)
401 NV_ERROR(cli, "fail reserve\n");
402 return ret;
403 }
404 }
405
406 b->user_priv = (uint64_t)(unsigned long)nvbo;
407 nvbo->reserved_by = file_priv;
408 nvbo->pbbo_index = i;
409 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
410 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
411 list_add_tail(&nvbo->entry, &op->both_list);
412 else
413 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
414 list_add_tail(&nvbo->entry, &op->vram_list);
415 else
416 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
417 list_add_tail(&nvbo->entry, &op->gart_list);
418 else {
419 NV_ERROR(cli, "invalid valid domains: 0x%08x\n",
420 b->valid_domains);
421 list_add_tail(&nvbo->entry, &op->both_list);
422 ww_acquire_done(&op->ticket);
423 validate_fini(op, NULL);
424 return -EINVAL;
425 }
426 if (nvbo == res_bo)
427 goto retry;
428 }
429
430 ww_acquire_done(&op->ticket);
431 return 0;
432}
433
434static int
435validate_sync(struct nouveau_channel *chan, struct nouveau_bo *nvbo)
436{
437 struct nouveau_fence *fence = NULL;
438 int ret = 0;
439
440 spin_lock(&nvbo->bo.bdev->fence_lock);
441 fence = nouveau_fence_ref(nvbo->bo.sync_obj);
442 spin_unlock(&nvbo->bo.bdev->fence_lock);
443
444 if (fence) {
445 ret = nouveau_fence_sync(fence, chan);
446 nouveau_fence_unref(&fence);
447 }
448
449 return ret;
450}
451
452static int
453validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli,
454 struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo,
455 uint64_t user_pbbo_ptr)
456{
457 struct nouveau_drm *drm = chan->drm;
458 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
459 (void __force __user *)(uintptr_t)user_pbbo_ptr;
460 struct nouveau_bo *nvbo;
461 int ret, relocs = 0;
462
463 list_for_each_entry(nvbo, list, entry) {
464 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
465
466 ret = validate_sync(chan, nvbo);
467 if (unlikely(ret)) {
468 NV_ERROR(cli, "fail pre-validate sync\n");
469 return ret;
470 }
471
472 ret = nouveau_gem_set_domain(&nvbo->gem, b->read_domains,
473 b->write_domains,
474 b->valid_domains);
475 if (unlikely(ret)) {
476 NV_ERROR(cli, "fail set_domain\n");
477 return ret;
478 }
479
480 ret = nouveau_bo_validate(nvbo, true, false);
481 if (unlikely(ret)) {
482 if (ret != -ERESTARTSYS)
483 NV_ERROR(cli, "fail ttm_validate\n");
484 return ret;
485 }
486
487 ret = validate_sync(chan, nvbo);
488 if (unlikely(ret)) {
489 NV_ERROR(cli, "fail post-validate sync\n");
490 return ret;
491 }
492
493 if (nv_device(drm->device)->card_type < NV_50) {
494 if (nvbo->bo.offset == b->presumed.offset &&
495 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
496 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
497 (nvbo->bo.mem.mem_type == TTM_PL_TT &&
498 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
499 continue;
500
501 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
502 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
503 else
504 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
505 b->presumed.offset = nvbo->bo.offset;
506 b->presumed.valid = 0;
507 relocs++;
508
509 if (DRM_COPY_TO_USER(&upbbo[nvbo->pbbo_index].presumed,
510 &b->presumed, sizeof(b->presumed)))
511 return -EFAULT;
512 }
513 }
514
515 return relocs;
516}
517
518static int
519nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
520 struct drm_file *file_priv,
521 struct drm_nouveau_gem_pushbuf_bo *pbbo,
522 uint64_t user_buffers, int nr_buffers,
523 struct validate_op *op, int *apply_relocs)
524{
525 struct nouveau_cli *cli = nouveau_cli(file_priv);
526 int ret, relocs = 0;
527
528 INIT_LIST_HEAD(&op->vram_list);
529 INIT_LIST_HEAD(&op->gart_list);
530 INIT_LIST_HEAD(&op->both_list);
531
532 if (nr_buffers == 0)
533 return 0;
534
535 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
536 if (unlikely(ret)) {
537 if (ret != -ERESTARTSYS)
538 NV_ERROR(cli, "validate_init\n");
539 return ret;
540 }
541
542 ret = validate_list(chan, cli, &op->vram_list, pbbo, user_buffers);
543 if (unlikely(ret < 0)) {
544 if (ret != -ERESTARTSYS)
545 NV_ERROR(cli, "validate vram_list\n");
546 validate_fini(op, NULL);
547 return ret;
548 }
549 relocs += ret;
550
551 ret = validate_list(chan, cli, &op->gart_list, pbbo, user_buffers);
552 if (unlikely(ret < 0)) {
553 if (ret != -ERESTARTSYS)
554 NV_ERROR(cli, "validate gart_list\n");
555 validate_fini(op, NULL);
556 return ret;
557 }
558 relocs += ret;
559
560 ret = validate_list(chan, cli, &op->both_list, pbbo, user_buffers);
561 if (unlikely(ret < 0)) {
562 if (ret != -ERESTARTSYS)
563 NV_ERROR(cli, "validate both_list\n");
564 validate_fini(op, NULL);
565 return ret;
566 }
567 relocs += ret;
568
569 *apply_relocs = relocs;
570 return 0;
571}
572
573static inline void
574u_free(void *addr)
575{
576 if (!is_vmalloc_addr(addr))
577 kfree(addr);
578 else
579 vfree(addr);
580}
581
582static inline void *
583u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
584{
585 void *mem;
586 void __user *userptr = (void __force __user *)(uintptr_t)user;
587
588 size *= nmemb;
589
590 mem = kmalloc(size, GFP_KERNEL | __GFP_NOWARN);
591 if (!mem)
592 mem = vmalloc(size);
593 if (!mem)
594 return ERR_PTR(-ENOMEM);
595
596 if (DRM_COPY_FROM_USER(mem, userptr, size)) {
597 u_free(mem);
598 return ERR_PTR(-EFAULT);
599 }
600
601 return mem;
602}
603
604static int
605nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
606 struct drm_nouveau_gem_pushbuf *req,
607 struct drm_nouveau_gem_pushbuf_bo *bo)
608{
609 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
610 int ret = 0;
611 unsigned i;
612
613 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
614 if (IS_ERR(reloc))
615 return PTR_ERR(reloc);
616
617 for (i = 0; i < req->nr_relocs; i++) {
618 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
619 struct drm_nouveau_gem_pushbuf_bo *b;
620 struct nouveau_bo *nvbo;
621 uint32_t data;
622
623 if (unlikely(r->bo_index > req->nr_buffers)) {
624 NV_ERROR(cli, "reloc bo index invalid\n");
625 ret = -EINVAL;
626 break;
627 }
628
629 b = &bo[r->bo_index];
630 if (b->presumed.valid)
631 continue;
632
633 if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
634 NV_ERROR(cli, "reloc container bo index invalid\n");
635 ret = -EINVAL;
636 break;
637 }
638 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
639
640 if (unlikely(r->reloc_bo_offset + 4 >
641 nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
642 NV_ERROR(cli, "reloc outside of bo\n");
643 ret = -EINVAL;
644 break;
645 }
646
647 if (!nvbo->kmap.virtual) {
648 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
649 &nvbo->kmap);
650 if (ret) {
651 NV_ERROR(cli, "failed kmap for reloc\n");
652 break;
653 }
654 nvbo->validate_mapped = true;
655 }
656
657 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
658 data = b->presumed.offset + r->data;
659 else
660 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
661 data = (b->presumed.offset + r->data) >> 32;
662 else
663 data = r->data;
664
665 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
666 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
667 data |= r->tor;
668 else
669 data |= r->vor;
670 }
671
672 spin_lock(&nvbo->bo.bdev->fence_lock);
673 ret = ttm_bo_wait(&nvbo->bo, false, false, false);
674 spin_unlock(&nvbo->bo.bdev->fence_lock);
675 if (ret) {
676 NV_ERROR(cli, "reloc wait_idle failed: %d\n", ret);
677 break;
678 }
679
680 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
681 }
682
683 u_free(reloc);
684 return ret;
685}
686
687int
688nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
689 struct drm_file *file_priv)
690{
691 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
692 struct nouveau_cli *cli = nouveau_cli(file_priv);
693 struct nouveau_abi16_chan *temp;
694 struct nouveau_drm *drm = nouveau_drm(dev);
695 struct drm_nouveau_gem_pushbuf *req = data;
696 struct drm_nouveau_gem_pushbuf_push *push;
697 struct drm_nouveau_gem_pushbuf_bo *bo;
698 struct nouveau_channel *chan = NULL;
699 struct validate_op op;
700 struct nouveau_fence *fence = NULL;
701 int i, j, ret = 0, do_reloc = 0;
702
703 if (unlikely(!abi16))
704 return -ENOMEM;
705
706 list_for_each_entry(temp, &abi16->channels, head) {
707 if (temp->chan->handle == (NVDRM_CHAN | req->channel)) {
708 chan = temp->chan;
709 break;
710 }
711 }
712
713 if (!chan)
714 return nouveau_abi16_put(abi16, -ENOENT);
715
716 req->vram_available = drm->gem.vram_available;
717 req->gart_available = drm->gem.gart_available;
718 if (unlikely(req->nr_push == 0))
719 goto out_next;
720
721 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
722 NV_ERROR(cli, "pushbuf push count exceeds limit: %d max %d\n",
723 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
724 return nouveau_abi16_put(abi16, -EINVAL);
725 }
726
727 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
728 NV_ERROR(cli, "pushbuf bo count exceeds limit: %d max %d\n",
729 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
730 return nouveau_abi16_put(abi16, -EINVAL);
731 }
732
733 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
734 NV_ERROR(cli, "pushbuf reloc count exceeds limit: %d max %d\n",
735 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
736 return nouveau_abi16_put(abi16, -EINVAL);
737 }
738
739 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
740 if (IS_ERR(push))
741 return nouveau_abi16_put(abi16, PTR_ERR(push));
742
743 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
744 if (IS_ERR(bo)) {
745 u_free(push);
746 return nouveau_abi16_put(abi16, PTR_ERR(bo));
747 }
748
749
750 for (i = 0; i < req->nr_push; i++) {
751 if (push[i].bo_index >= req->nr_buffers) {
752 NV_ERROR(cli, "push %d buffer not in list\n", i);
753 ret = -EINVAL;
754 goto out_prevalid;
755 }
756 }
757
758
759 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
760 req->nr_buffers, &op, &do_reloc);
761 if (ret) {
762 if (ret != -ERESTARTSYS)
763 NV_ERROR(cli, "validate: %d\n", ret);
764 goto out_prevalid;
765 }
766
767
768 if (do_reloc) {
769 ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo);
770 if (ret) {
771 NV_ERROR(cli, "reloc apply: %d\n", ret);
772 goto out;
773 }
774 }
775
776 if (chan->dma.ib_max) {
777 ret = nouveau_dma_wait(chan, req->nr_push + 1, 16);
778 if (ret) {
779 NV_ERROR(cli, "nv50cal_space: %d\n", ret);
780 goto out;
781 }
782
783 for (i = 0; i < req->nr_push; i++) {
784 struct nouveau_bo *nvbo = (void *)(unsigned long)
785 bo[push[i].bo_index].user_priv;
786
787 nv50_dma_push(chan, nvbo, push[i].offset,
788 push[i].length);
789 }
790 } else
791 if (nv_device(drm->device)->chipset >= 0x25) {
792 ret = RING_SPACE(chan, req->nr_push * 2);
793 if (ret) {
794 NV_ERROR(cli, "cal_space: %d\n", ret);
795 goto out;
796 }
797
798 for (i = 0; i < req->nr_push; i++) {
799 struct nouveau_bo *nvbo = (void *)(unsigned long)
800 bo[push[i].bo_index].user_priv;
801
802 OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2);
803 OUT_RING(chan, 0);
804 }
805 } else {
806 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
807 if (ret) {
808 NV_ERROR(cli, "jmp_space: %d\n", ret);
809 goto out;
810 }
811
812 for (i = 0; i < req->nr_push; i++) {
813 struct nouveau_bo *nvbo = (void *)(unsigned long)
814 bo[push[i].bo_index].user_priv;
815 uint32_t cmd;
816
817 cmd = chan->push.vma.offset + ((chan->dma.cur + 2) << 2);
818 cmd |= 0x20000000;
819 if (unlikely(cmd != req->suffix0)) {
820 if (!nvbo->kmap.virtual) {
821 ret = ttm_bo_kmap(&nvbo->bo, 0,
822 nvbo->bo.mem.
823 num_pages,
824 &nvbo->kmap);
825 if (ret) {
826 WIND_RING(chan);
827 goto out;
828 }
829 nvbo->validate_mapped = true;
830 }
831
832 nouveau_bo_wr32(nvbo, (push[i].offset +
833 push[i].length - 8) / 4, cmd);
834 }
835
836 OUT_RING(chan, 0x20000000 |
837 (nvbo->bo.offset + push[i].offset));
838 OUT_RING(chan, 0);
839 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
840 OUT_RING(chan, 0);
841 }
842 }
843
844 ret = nouveau_fence_new(chan, false, &fence);
845 if (ret) {
846 NV_ERROR(cli, "error fencing pushbuf: %d\n", ret);
847 WIND_RING(chan);
848 goto out;
849 }
850
851out:
852 validate_fini(&op, fence);
853 nouveau_fence_unref(&fence);
854
855out_prevalid:
856 u_free(bo);
857 u_free(push);
858
859out_next:
860 if (chan->dma.ib_max) {
861 req->suffix0 = 0x00000000;
862 req->suffix1 = 0x00000000;
863 } else
864 if (nv_device(drm->device)->chipset >= 0x25) {
865 req->suffix0 = 0x00020000;
866 req->suffix1 = 0x00000000;
867 } else {
868 req->suffix0 = 0x20000000 |
869 (chan->push.vma.offset + ((chan->dma.cur + 2) << 2));
870 req->suffix1 = 0x00000000;
871 }
872
873 return nouveau_abi16_put(abi16, ret);
874}
875
876static inline uint32_t
877domain_to_ttm(struct nouveau_bo *nvbo, uint32_t domain)
878{
879 uint32_t flags = 0;
880
881 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
882 flags |= TTM_PL_FLAG_VRAM;
883 if (domain & NOUVEAU_GEM_DOMAIN_GART)
884 flags |= TTM_PL_FLAG_TT;
885
886 return flags;
887}
888
889int
890nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
891 struct drm_file *file_priv)
892{
893 struct drm_nouveau_gem_cpu_prep *req = data;
894 struct drm_gem_object *gem;
895 struct nouveau_bo *nvbo;
896 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
897 int ret = -EINVAL;
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 spin_lock(&nvbo->bo.bdev->fence_lock);
905 ret = ttm_bo_wait(&nvbo->bo, true, true, no_wait);
906 spin_unlock(&nvbo->bo.bdev->fence_lock);
907 drm_gem_object_unreference_unlocked(gem);
908 return ret;
909}
910
911int
912nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
913 struct drm_file *file_priv)
914{
915 return 0;
916}
917
918int
919nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
920 struct drm_file *file_priv)
921{
922 struct drm_nouveau_gem_info *req = data;
923 struct drm_gem_object *gem;
924 int ret;
925
926 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
927 if (!gem)
928 return -ENOENT;
929
930 ret = nouveau_gem_info(file_priv, gem, req);
931 drm_gem_object_unreference_unlocked(gem);
932 return ret;
933}
934
935
