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