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27#include <drm/drm_gem_ttm_helper.h>
28
29#include "nouveau_drv.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#include "nouveau_mem.h"
37#include "nouveau_vmm.h"
38
39#include <nvif/class.h>
40#include <nvif/push206e.h>
41
42static vm_fault_t nouveau_ttm_fault(struct vm_fault *vmf)
43{
44 struct vm_area_struct *vma = vmf->vma;
45 struct ttm_buffer_object *bo = vma->vm_private_data;
46 pgprot_t prot;
47 vm_fault_t ret;
48
49 ret = ttm_bo_vm_reserve(bo, vmf);
50 if (ret)
51 return ret;
52
53 ret = nouveau_ttm_fault_reserve_notify(bo);
54 if (ret)
55 goto error_unlock;
56
57 nouveau_bo_del_io_reserve_lru(bo);
58 prot = vm_get_page_prot(vma->vm_flags);
59 ret = ttm_bo_vm_fault_reserved(vmf, prot, TTM_BO_VM_NUM_PREFAULT, 1);
60 nouveau_bo_add_io_reserve_lru(bo);
61 if (ret == VM_FAULT_RETRY && !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT))
62 return ret;
63
64error_unlock:
65 dma_resv_unlock(bo->base.resv);
66 return ret;
67}
68
69static const struct vm_operations_struct nouveau_ttm_vm_ops = {
70 .fault = nouveau_ttm_fault,
71 .open = ttm_bo_vm_open,
72 .close = ttm_bo_vm_close,
73 .access = ttm_bo_vm_access
74};
75
76void
77nouveau_gem_object_del(struct drm_gem_object *gem)
78{
79 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
80 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
81 struct device *dev = drm->dev->dev;
82 int ret;
83
84 ret = pm_runtime_get_sync(dev);
85 if (WARN_ON(ret < 0 && ret != -EACCES)) {
86 pm_runtime_put_autosuspend(dev);
87 return;
88 }
89
90 if (gem->import_attach)
91 drm_prime_gem_destroy(gem, nvbo->bo.sg);
92
93 ttm_bo_put(&nvbo->bo);
94
95 pm_runtime_mark_last_busy(dev);
96 pm_runtime_put_autosuspend(dev);
97}
98
99int
100nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv)
101{
102 struct nouveau_cli *cli = nouveau_cli(file_priv);
103 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
104 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
105 struct device *dev = drm->dev->dev;
106 struct nouveau_vmm *vmm = cli->svm.cli ? &cli->svm : &cli->vmm;
107 struct nouveau_vma *vma;
108 int ret;
109
110 if (vmm->vmm.object.oclass < NVIF_CLASS_VMM_NV50)
111 return 0;
112
113 ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
114 if (ret)
115 return ret;
116
117 ret = pm_runtime_get_sync(dev);
118 if (ret < 0 && ret != -EACCES) {
119 pm_runtime_put_autosuspend(dev);
120 goto out;
121 }
122
123 ret = nouveau_vma_new(nvbo, vmm, &vma);
124 pm_runtime_mark_last_busy(dev);
125 pm_runtime_put_autosuspend(dev);
126out:
127 ttm_bo_unreserve(&nvbo->bo);
128 return ret;
129}
130
131struct nouveau_gem_object_unmap {
132 struct nouveau_cli_work work;
133 struct nouveau_vma *vma;
134};
135
136static void
137nouveau_gem_object_delete(struct nouveau_vma *vma)
138{
139 nouveau_fence_unref(&vma->fence);
140 nouveau_vma_del(&vma);
141}
142
143static void
144nouveau_gem_object_delete_work(struct nouveau_cli_work *w)
145{
146 struct nouveau_gem_object_unmap *work =
147 container_of(w, typeof(*work), work);
148 nouveau_gem_object_delete(work->vma);
149 kfree(work);
150}
151
152static void
153nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nouveau_vma *vma)
154{
155 struct dma_fence *fence = vma->fence ? &vma->fence->base : NULL;
156 struct nouveau_gem_object_unmap *work;
157
158 list_del_init(&vma->head);
159
160 if (!fence) {
161 nouveau_gem_object_delete(vma);
162 return;
163 }
164
165 if (!(work = kmalloc(sizeof(*work), GFP_KERNEL))) {
166 WARN_ON(dma_fence_wait_timeout(fence, false, 2 * HZ) <= 0);
167 nouveau_gem_object_delete(vma);
168 return;
169 }
170
171 work->work.func = nouveau_gem_object_delete_work;
172 work->vma = vma;
173 nouveau_cli_work_queue(vma->vmm->cli, fence, &work->work);
174}
175
176void
177nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv)
178{
179 struct nouveau_cli *cli = nouveau_cli(file_priv);
180 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
181 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
182 struct device *dev = drm->dev->dev;
183 struct nouveau_vmm *vmm = cli->svm.cli ? &cli->svm : & cli->vmm;
184 struct nouveau_vma *vma;
185 int ret;
186
187 if (vmm->vmm.object.oclass < NVIF_CLASS_VMM_NV50)
188 return;
189
190 ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
191 if (ret)
192 return;
193
194 vma = nouveau_vma_find(nvbo, vmm);
195 if (vma) {
196 if (--vma->refs == 0) {
197 ret = pm_runtime_get_sync(dev);
198 if (!WARN_ON(ret < 0 && ret != -EACCES)) {
199 nouveau_gem_object_unmap(nvbo, vma);
200 pm_runtime_mark_last_busy(dev);
201 }
202 pm_runtime_put_autosuspend(dev);
203 }
204 }
205 ttm_bo_unreserve(&nvbo->bo);
206}
207
208const struct drm_gem_object_funcs nouveau_gem_object_funcs = {
209 .free = nouveau_gem_object_del,
210 .open = nouveau_gem_object_open,
211 .close = nouveau_gem_object_close,
212 .pin = nouveau_gem_prime_pin,
213 .unpin = nouveau_gem_prime_unpin,
214 .get_sg_table = nouveau_gem_prime_get_sg_table,
215 .vmap = drm_gem_ttm_vmap,
216 .vunmap = drm_gem_ttm_vunmap,
217 .mmap = drm_gem_ttm_mmap,
218 .vm_ops = &nouveau_ttm_vm_ops,
219};
220
221int
222nouveau_gem_new(struct nouveau_cli *cli, u64 size, int align, uint32_t domain,
223 uint32_t tile_mode, uint32_t tile_flags,
224 struct nouveau_bo **pnvbo)
225{
226 struct nouveau_drm *drm = cli->drm;
227 struct nouveau_bo *nvbo;
228 int ret;
229
230 if (!(domain & (NOUVEAU_GEM_DOMAIN_VRAM | NOUVEAU_GEM_DOMAIN_GART)))
231 domain |= NOUVEAU_GEM_DOMAIN_CPU;
232
233 nvbo = nouveau_bo_alloc(cli, &size, &align, domain, tile_mode,
234 tile_flags);
235 if (IS_ERR(nvbo))
236 return PTR_ERR(nvbo);
237
238 nvbo->bo.base.funcs = &nouveau_gem_object_funcs;
239
240
241
242 ret = drm_gem_object_init(drm->dev, &nvbo->bo.base, size);
243 if (ret) {
244 drm_gem_object_release(&nvbo->bo.base);
245 kfree(nvbo);
246 return ret;
247 }
248
249 ret = nouveau_bo_init(nvbo, size, align, domain, NULL, NULL);
250 if (ret) {
251 nouveau_bo_ref(NULL, &nvbo);
252 return ret;
253 }
254
255
256
257
258
259 nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM |
260 NOUVEAU_GEM_DOMAIN_GART;
261 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)
262 nvbo->valid_domains &= domain;
263
264 *pnvbo = nvbo;
265 return 0;
266}
267
268static int
269nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
270 struct drm_nouveau_gem_info *rep)
271{
272 struct nouveau_cli *cli = nouveau_cli(file_priv);
273 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
274 struct nouveau_vmm *vmm = cli->svm.cli ? &cli->svm : &cli->vmm;
275 struct nouveau_vma *vma;
276
277 if (is_power_of_2(nvbo->valid_domains))
278 rep->domain = nvbo->valid_domains;
279 else if (nvbo->bo.resource->mem_type == TTM_PL_TT)
280 rep->domain = NOUVEAU_GEM_DOMAIN_GART;
281 else
282 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
283 rep->offset = nvbo->offset;
284 if (vmm->vmm.object.oclass >= NVIF_CLASS_VMM_NV50) {
285 vma = nouveau_vma_find(nvbo, vmm);
286 if (!vma)
287 return -EINVAL;
288
289 rep->offset = vma->addr;
290 }
291
292 rep->size = nvbo->bo.base.size;
293 rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.base.vma_node);
294 rep->tile_mode = nvbo->mode;
295 rep->tile_flags = nvbo->contig ? 0 : NOUVEAU_GEM_TILE_NONCONTIG;
296 if (cli->device.info.family >= NV_DEVICE_INFO_V0_FERMI)
297 rep->tile_flags |= nvbo->kind << 8;
298 else
299 if (cli->device.info.family >= NV_DEVICE_INFO_V0_TESLA)
300 rep->tile_flags |= nvbo->kind << 8 | nvbo->comp << 16;
301 else
302 rep->tile_flags |= nvbo->zeta;
303 return 0;
304}
305
306int
307nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
308 struct drm_file *file_priv)
309{
310 struct nouveau_cli *cli = nouveau_cli(file_priv);
311 struct drm_nouveau_gem_new *req = data;
312 struct nouveau_bo *nvbo = NULL;
313 int ret = 0;
314
315 ret = nouveau_gem_new(cli, req->info.size, req->align,
316 req->info.domain, req->info.tile_mode,
317 req->info.tile_flags, &nvbo);
318 if (ret)
319 return ret;
320
321 ret = drm_gem_handle_create(file_priv, &nvbo->bo.base,
322 &req->info.handle);
323 if (ret == 0) {
324 ret = nouveau_gem_info(file_priv, &nvbo->bo.base, &req->info);
325 if (ret)
326 drm_gem_handle_delete(file_priv, req->info.handle);
327 }
328
329
330 drm_gem_object_put(&nvbo->bo.base);
331 return ret;
332}
333
334static int
335nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
336 uint32_t write_domains, uint32_t valid_domains)
337{
338 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
339 struct ttm_buffer_object *bo = &nvbo->bo;
340 uint32_t domains = valid_domains & nvbo->valid_domains &
341 (write_domains ? write_domains : read_domains);
342 uint32_t pref_domains = 0;;
343
344 if (!domains)
345 return -EINVAL;
346
347 valid_domains &= ~(NOUVEAU_GEM_DOMAIN_VRAM | NOUVEAU_GEM_DOMAIN_GART);
348
349 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
350 bo->resource->mem_type == TTM_PL_VRAM)
351 pref_domains |= NOUVEAU_GEM_DOMAIN_VRAM;
352
353 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
354 bo->resource->mem_type == TTM_PL_TT)
355 pref_domains |= NOUVEAU_GEM_DOMAIN_GART;
356
357 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
358 pref_domains |= NOUVEAU_GEM_DOMAIN_VRAM;
359
360 else
361 pref_domains |= NOUVEAU_GEM_DOMAIN_GART;
362
363 nouveau_bo_placement_set(nvbo, pref_domains, valid_domains);
364
365 return 0;
366}
367
368struct validate_op {
369 struct list_head list;
370 struct ww_acquire_ctx ticket;
371};
372
373static void
374validate_fini_no_ticket(struct validate_op *op, struct nouveau_channel *chan,
375 struct nouveau_fence *fence,
376 struct drm_nouveau_gem_pushbuf_bo *pbbo)
377{
378 struct nouveau_bo *nvbo;
379 struct drm_nouveau_gem_pushbuf_bo *b;
380
381 while (!list_empty(&op->list)) {
382 nvbo = list_entry(op->list.next, struct nouveau_bo, entry);
383 b = &pbbo[nvbo->pbbo_index];
384
385 if (likely(fence)) {
386 nouveau_bo_fence(nvbo, fence, !!b->write_domains);
387
388 if (chan->vmm->vmm.object.oclass >= NVIF_CLASS_VMM_NV50) {
389 struct nouveau_vma *vma =
390 (void *)(unsigned long)b->user_priv;
391 nouveau_fence_unref(&vma->fence);
392 dma_fence_get(&fence->base);
393 vma->fence = fence;
394 }
395 }
396
397 if (unlikely(nvbo->validate_mapped)) {
398 ttm_bo_kunmap(&nvbo->kmap);
399 nvbo->validate_mapped = false;
400 }
401
402 list_del(&nvbo->entry);
403 nvbo->reserved_by = NULL;
404 ttm_bo_unreserve(&nvbo->bo);
405 drm_gem_object_put(&nvbo->bo.base);
406 }
407}
408
409static void
410validate_fini(struct validate_op *op, struct nouveau_channel *chan,
411 struct nouveau_fence *fence,
412 struct drm_nouveau_gem_pushbuf_bo *pbbo)
413{
414 validate_fini_no_ticket(op, chan, fence, pbbo);
415 ww_acquire_fini(&op->ticket);
416}
417
418static int
419validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
420 struct drm_nouveau_gem_pushbuf_bo *pbbo,
421 int nr_buffers, struct validate_op *op)
422{
423 struct nouveau_cli *cli = nouveau_cli(file_priv);
424 int trycnt = 0;
425 int ret = -EINVAL, i;
426 struct nouveau_bo *res_bo = NULL;
427 LIST_HEAD(gart_list);
428 LIST_HEAD(vram_list);
429 LIST_HEAD(both_list);
430
431 ww_acquire_init(&op->ticket, &reservation_ww_class);
432retry:
433 if (++trycnt > 100000) {
434 NV_PRINTK(err, cli, "%s failed and gave up.\n", __func__);
435 return -EINVAL;
436 }
437
438 for (i = 0; i < nr_buffers; i++) {
439 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
440 struct drm_gem_object *gem;
441 struct nouveau_bo *nvbo;
442
443 gem = drm_gem_object_lookup(file_priv, b->handle);
444 if (!gem) {
445 NV_PRINTK(err, cli, "Unknown handle 0x%08x\n", b->handle);
446 ret = -ENOENT;
447 break;
448 }
449 nvbo = nouveau_gem_object(gem);
450 if (nvbo == res_bo) {
451 res_bo = NULL;
452 drm_gem_object_put(gem);
453 continue;
454 }
455
456 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
457 NV_PRINTK(err, cli, "multiple instances of buffer %d on "
458 "validation list\n", b->handle);
459 drm_gem_object_put(gem);
460 ret = -EINVAL;
461 break;
462 }
463
464 ret = ttm_bo_reserve(&nvbo->bo, true, false, &op->ticket);
465 if (ret) {
466 list_splice_tail_init(&vram_list, &op->list);
467 list_splice_tail_init(&gart_list, &op->list);
468 list_splice_tail_init(&both_list, &op->list);
469 validate_fini_no_ticket(op, chan, NULL, NULL);
470 if (unlikely(ret == -EDEADLK)) {
471 ret = ttm_bo_reserve_slowpath(&nvbo->bo, true,
472 &op->ticket);
473 if (!ret)
474 res_bo = nvbo;
475 }
476 if (unlikely(ret)) {
477 if (ret != -ERESTARTSYS)
478 NV_PRINTK(err, cli, "fail reserve\n");
479 break;
480 }
481 }
482
483 if (chan->vmm->vmm.object.oclass >= NVIF_CLASS_VMM_NV50) {
484 struct nouveau_vmm *vmm = chan->vmm;
485 struct nouveau_vma *vma = nouveau_vma_find(nvbo, vmm);
486 if (!vma) {
487 NV_PRINTK(err, cli, "vma not found!\n");
488 ret = -EINVAL;
489 break;
490 }
491
492 b->user_priv = (uint64_t)(unsigned long)vma;
493 } else {
494 b->user_priv = (uint64_t)(unsigned long)nvbo;
495 }
496
497 nvbo->reserved_by = file_priv;
498 nvbo->pbbo_index = i;
499 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
500 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
501 list_add_tail(&nvbo->entry, &both_list);
502 else
503 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
504 list_add_tail(&nvbo->entry, &vram_list);
505 else
506 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
507 list_add_tail(&nvbo->entry, &gart_list);
508 else {
509 NV_PRINTK(err, cli, "invalid valid domains: 0x%08x\n",
510 b->valid_domains);
511 list_add_tail(&nvbo->entry, &both_list);
512 ret = -EINVAL;
513 break;
514 }
515 if (nvbo == res_bo)
516 goto retry;
517 }
518
519 ww_acquire_done(&op->ticket);
520 list_splice_tail(&vram_list, &op->list);
521 list_splice_tail(&gart_list, &op->list);
522 list_splice_tail(&both_list, &op->list);
523 if (ret)
524 validate_fini(op, chan, NULL, NULL);
525 return ret;
526
527}
528
529static int
530validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli,
531 struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo)
532{
533 struct nouveau_drm *drm = chan->drm;
534 struct nouveau_bo *nvbo;
535 int ret, relocs = 0;
536
537 list_for_each_entry(nvbo, list, entry) {
538 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
539
540 ret = nouveau_gem_set_domain(&nvbo->bo.base, b->read_domains,
541 b->write_domains,
542 b->valid_domains);
543 if (unlikely(ret)) {
544 NV_PRINTK(err, cli, "fail set_domain\n");
545 return ret;
546 }
547
548 ret = nouveau_bo_validate(nvbo, true, false);
549 if (unlikely(ret)) {
550 if (ret != -ERESTARTSYS)
551 NV_PRINTK(err, cli, "fail ttm_validate\n");
552 return ret;
553 }
554
555 ret = nouveau_fence_sync(nvbo, chan, !!b->write_domains, true);
556 if (unlikely(ret)) {
557 if (ret != -ERESTARTSYS)
558 NV_PRINTK(err, cli, "fail post-validate sync\n");
559 return ret;
560 }
561
562 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
563 if (nvbo->offset == b->presumed.offset &&
564 ((nvbo->bo.resource->mem_type == TTM_PL_VRAM &&
565 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
566 (nvbo->bo.resource->mem_type == TTM_PL_TT &&
567 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
568 continue;
569
570 if (nvbo->bo.resource->mem_type == TTM_PL_TT)
571 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
572 else
573 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
574 b->presumed.offset = nvbo->offset;
575 b->presumed.valid = 0;
576 relocs++;
577 }
578 }
579
580 return relocs;
581}
582
583static int
584nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
585 struct drm_file *file_priv,
586 struct drm_nouveau_gem_pushbuf_bo *pbbo,
587 int nr_buffers,
588 struct validate_op *op, bool *apply_relocs)
589{
590 struct nouveau_cli *cli = nouveau_cli(file_priv);
591 int ret;
592
593 INIT_LIST_HEAD(&op->list);
594
595 if (nr_buffers == 0)
596 return 0;
597
598 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
599 if (unlikely(ret)) {
600 if (ret != -ERESTARTSYS)
601 NV_PRINTK(err, cli, "validate_init\n");
602 return ret;
603 }
604
605 ret = validate_list(chan, cli, &op->list, pbbo);
606 if (unlikely(ret < 0)) {
607 if (ret != -ERESTARTSYS)
608 NV_PRINTK(err, cli, "validating bo list\n");
609 validate_fini(op, chan, NULL, NULL);
610 return ret;
611 } else if (ret > 0) {
612 *apply_relocs = true;
613 }
614
615 return 0;
616}
617
618static inline void
619u_free(void *addr)
620{
621 kvfree(addr);
622}
623
624static inline void *
625u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
626{
627 void *mem;
628 void __user *userptr = (void __force __user *)(uintptr_t)user;
629
630 size *= nmemb;
631
632 mem = kvmalloc(size, GFP_KERNEL);
633 if (!mem)
634 return ERR_PTR(-ENOMEM);
635
636 if (copy_from_user(mem, userptr, size)) {
637 u_free(mem);
638 return ERR_PTR(-EFAULT);
639 }
640
641 return mem;
642}
643
644static int
645nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
646 struct drm_nouveau_gem_pushbuf *req,
647 struct drm_nouveau_gem_pushbuf_reloc *reloc,
648 struct drm_nouveau_gem_pushbuf_bo *bo)
649{
650 int ret = 0;
651 unsigned i;
652
653 for (i = 0; i < req->nr_relocs; i++) {
654 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
655 struct drm_nouveau_gem_pushbuf_bo *b;
656 struct nouveau_bo *nvbo;
657 uint32_t data;
658
659 if (unlikely(r->bo_index >= req->nr_buffers)) {
660 NV_PRINTK(err, cli, "reloc bo index invalid\n");
661 ret = -EINVAL;
662 break;
663 }
664
665 b = &bo[r->bo_index];
666 if (b->presumed.valid)
667 continue;
668
669 if (unlikely(r->reloc_bo_index >= req->nr_buffers)) {
670 NV_PRINTK(err, cli, "reloc container bo index invalid\n");
671 ret = -EINVAL;
672 break;
673 }
674 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
675
676 if (unlikely(r->reloc_bo_offset + 4 >
677 nvbo->bo.base.size)) {
678 NV_PRINTK(err, cli, "reloc outside of bo\n");
679 ret = -EINVAL;
680 break;
681 }
682
683 if (!nvbo->kmap.virtual) {
684 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.resource->num_pages,
685 &nvbo->kmap);
686 if (ret) {
687 NV_PRINTK(err, cli, "failed kmap for reloc\n");
688 break;
689 }
690 nvbo->validate_mapped = true;
691 }
692
693 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
694 data = b->presumed.offset + r->data;
695 else
696 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
697 data = (b->presumed.offset + r->data) >> 32;
698 else
699 data = r->data;
700
701 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
702 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
703 data |= r->tor;
704 else
705 data |= r->vor;
706 }
707
708 ret = ttm_bo_wait(&nvbo->bo, false, false);
709 if (ret) {
710 NV_PRINTK(err, cli, "reloc wait_idle failed: %d\n", ret);
711 break;
712 }
713
714 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
715 }
716
717 return ret;
718}
719
720int
721nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
722 struct drm_file *file_priv)
723{
724 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
725 struct nouveau_cli *cli = nouveau_cli(file_priv);
726 struct nouveau_abi16_chan *temp;
727 struct nouveau_drm *drm = nouveau_drm(dev);
728 struct drm_nouveau_gem_pushbuf *req = data;
729 struct drm_nouveau_gem_pushbuf_push *push;
730 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
731 struct drm_nouveau_gem_pushbuf_bo *bo;
732 struct nouveau_channel *chan = NULL;
733 struct validate_op op;
734 struct nouveau_fence *fence = NULL;
735 int i, j, ret = 0;
736 bool do_reloc = false, sync = false;
737
738 if (unlikely(!abi16))
739 return -ENOMEM;
740
741 list_for_each_entry(temp, &abi16->channels, head) {
742 if (temp->chan->chid == req->channel) {
743 chan = temp->chan;
744 break;
745 }
746 }
747
748 if (!chan)
749 return nouveau_abi16_put(abi16, -ENOENT);
750 if (unlikely(atomic_read(&chan->killed)))
751 return nouveau_abi16_put(abi16, -ENODEV);
752
753 sync = req->vram_available & NOUVEAU_GEM_PUSHBUF_SYNC;
754
755 req->vram_available = drm->gem.vram_available;
756 req->gart_available = drm->gem.gart_available;
757 if (unlikely(req->nr_push == 0))
758 goto out_next;
759
760 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
761 NV_PRINTK(err, cli, "pushbuf push count exceeds limit: %d max %d\n",
762 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
763 return nouveau_abi16_put(abi16, -EINVAL);
764 }
765
766 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
767 NV_PRINTK(err, cli, "pushbuf bo count exceeds limit: %d max %d\n",
768 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
769 return nouveau_abi16_put(abi16, -EINVAL);
770 }
771
772 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
773 NV_PRINTK(err, cli, "pushbuf reloc count exceeds limit: %d max %d\n",
774 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
775 return nouveau_abi16_put(abi16, -EINVAL);
776 }
777
778 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
779 if (IS_ERR(push))
780 return nouveau_abi16_put(abi16, PTR_ERR(push));
781
782 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
783 if (IS_ERR(bo)) {
784 u_free(push);
785 return nouveau_abi16_put(abi16, PTR_ERR(bo));
786 }
787
788
789 for (i = 0; i < req->nr_push; i++) {
790 if (push[i].bo_index >= req->nr_buffers) {
791 NV_PRINTK(err, cli, "push %d buffer not in list\n", i);
792 ret = -EINVAL;
793 goto out_prevalid;
794 }
795 }
796
797
798revalidate:
799 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo,
800 req->nr_buffers, &op, &do_reloc);
801 if (ret) {
802 if (ret != -ERESTARTSYS)
803 NV_PRINTK(err, cli, "validate: %d\n", ret);
804 goto out_prevalid;
805 }
806
807
808 if (do_reloc) {
809 if (!reloc) {
810 validate_fini(&op, chan, NULL, bo);
811 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
812 if (IS_ERR(reloc)) {
813 ret = PTR_ERR(reloc);
814 goto out_prevalid;
815 }
816
817 goto revalidate;
818 }
819
820 ret = nouveau_gem_pushbuf_reloc_apply(cli, req, reloc, bo);
821 if (ret) {
822 NV_PRINTK(err, cli, "reloc apply: %d\n", ret);
823 goto out;
824 }
825 }
826
827 if (chan->dma.ib_max) {
828 ret = nouveau_dma_wait(chan, req->nr_push + 1, 16);
829 if (ret) {
830 NV_PRINTK(err, cli, "nv50cal_space: %d\n", ret);
831 goto out;
832 }
833
834 for (i = 0; i < req->nr_push; i++) {
835 struct nouveau_vma *vma = (void *)(unsigned long)
836 bo[push[i].bo_index].user_priv;
837
838 nv50_dma_push(chan, vma->addr + push[i].offset,
839 push[i].length);
840 }
841 } else
842 if (drm->client.device.info.chipset >= 0x25) {
843 ret = PUSH_WAIT(chan->chan.push, req->nr_push * 2);
844 if (ret) {
845 NV_PRINTK(err, cli, "cal_space: %d\n", ret);
846 goto out;
847 }
848
849 for (i = 0; i < req->nr_push; i++) {
850 struct nouveau_bo *nvbo = (void *)(unsigned long)
851 bo[push[i].bo_index].user_priv;
852
853 PUSH_CALL(chan->chan.push, nvbo->offset + push[i].offset);
854 PUSH_DATA(chan->chan.push, 0);
855 }
856 } else {
857 ret = PUSH_WAIT(chan->chan.push, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
858 if (ret) {
859 NV_PRINTK(err, cli, "jmp_space: %d\n", ret);
860 goto out;
861 }
862
863 for (i = 0; i < req->nr_push; i++) {
864 struct nouveau_bo *nvbo = (void *)(unsigned long)
865 bo[push[i].bo_index].user_priv;
866 uint32_t cmd;
867
868 cmd = chan->push.addr + ((chan->dma.cur + 2) << 2);
869 cmd |= 0x20000000;
870 if (unlikely(cmd != req->suffix0)) {
871 if (!nvbo->kmap.virtual) {
872 ret = ttm_bo_kmap(&nvbo->bo, 0,
873 nvbo->bo.resource->
874 num_pages,
875 &nvbo->kmap);
876 if (ret) {
877 WIND_RING(chan);
878 goto out;
879 }
880 nvbo->validate_mapped = true;
881 }
882
883 nouveau_bo_wr32(nvbo, (push[i].offset +
884 push[i].length - 8) / 4, cmd);
885 }
886
887 PUSH_JUMP(chan->chan.push, nvbo->offset + push[i].offset);
888 PUSH_DATA(chan->chan.push, 0);
889 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
890 PUSH_DATA(chan->chan.push, 0);
891 }
892 }
893
894 ret = nouveau_fence_new(chan, false, &fence);
895 if (ret) {
896 NV_PRINTK(err, cli, "error fencing pushbuf: %d\n", ret);
897 WIND_RING(chan);
898 goto out;
899 }
900
901 if (sync) {
902 if (!(ret = nouveau_fence_wait(fence, false, false))) {
903 if ((ret = dma_fence_get_status(&fence->base)) == 1)
904 ret = 0;
905 }
906 }
907
908out:
909 validate_fini(&op, chan, fence, bo);
910 nouveau_fence_unref(&fence);
911
912 if (do_reloc) {
913 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
914 u64_to_user_ptr(req->buffers);
915
916 for (i = 0; i < req->nr_buffers; i++) {
917 if (bo[i].presumed.valid)
918 continue;
919
920 if (copy_to_user(&upbbo[i].presumed, &bo[i].presumed,
921 sizeof(bo[i].presumed))) {
922 ret = -EFAULT;
923 break;
924 }
925 }
926 }
927out_prevalid:
928 if (!IS_ERR(reloc))
929 u_free(reloc);
930 u_free(bo);
931 u_free(push);
932
933out_next:
934 if (chan->dma.ib_max) {
935 req->suffix0 = 0x00000000;
936 req->suffix1 = 0x00000000;
937 } else
938 if (drm->client.device.info.chipset >= 0x25) {
939 req->suffix0 = 0x00020000;
940 req->suffix1 = 0x00000000;
941 } else {
942 req->suffix0 = 0x20000000 |
943 (chan->push.addr + ((chan->dma.cur + 2) << 2));
944 req->suffix1 = 0x00000000;
945 }
946
947 return nouveau_abi16_put(abi16, ret);
948}
949
950int
951nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
952 struct drm_file *file_priv)
953{
954 struct drm_nouveau_gem_cpu_prep *req = data;
955 struct drm_gem_object *gem;
956 struct nouveau_bo *nvbo;
957 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
958 bool write = !!(req->flags & NOUVEAU_GEM_CPU_PREP_WRITE);
959 long lret;
960 int ret;
961
962 gem = drm_gem_object_lookup(file_priv, req->handle);
963 if (!gem)
964 return -ENOENT;
965 nvbo = nouveau_gem_object(gem);
966
967 lret = dma_resv_wait_timeout(nvbo->bo.base.resv, write, true,
968 no_wait ? 0 : 30 * HZ);
969 if (!lret)
970 ret = -EBUSY;
971 else if (lret > 0)
972 ret = 0;
973 else
974 ret = lret;
975
976 nouveau_bo_sync_for_cpu(nvbo);
977 drm_gem_object_put(gem);
978
979 return ret;
980}
981
982int
983nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
984 struct drm_file *file_priv)
985{
986 struct drm_nouveau_gem_cpu_fini *req = data;
987 struct drm_gem_object *gem;
988 struct nouveau_bo *nvbo;
989
990 gem = drm_gem_object_lookup(file_priv, req->handle);
991 if (!gem)
992 return -ENOENT;
993 nvbo = nouveau_gem_object(gem);
994
995 nouveau_bo_sync_for_device(nvbo);
996 drm_gem_object_put(gem);
997 return 0;
998}
999
1000int
1001nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
1002 struct drm_file *file_priv)
1003{
1004 struct drm_nouveau_gem_info *req = data;
1005 struct drm_gem_object *gem;
1006 int ret;
1007
1008 gem = drm_gem_object_lookup(file_priv, req->handle);
1009 if (!gem)
1010 return -ENOENT;
1011
1012 ret = nouveau_gem_info(file_priv, gem, req);
1013 drm_gem_object_put(gem);
1014 return ret;
1015}
1016
1017
