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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 return ret;
252
253
254
255
256
257 nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM |
258 NOUVEAU_GEM_DOMAIN_GART;
259 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)
260 nvbo->valid_domains &= domain;
261
262 *pnvbo = nvbo;
263 return 0;
264}
265
266static int
267nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
268 struct drm_nouveau_gem_info *rep)
269{
270 struct nouveau_cli *cli = nouveau_cli(file_priv);
271 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
272 struct nouveau_vmm *vmm = cli->svm.cli ? &cli->svm : &cli->vmm;
273 struct nouveau_vma *vma;
274
275 if (is_power_of_2(nvbo->valid_domains))
276 rep->domain = nvbo->valid_domains;
277 else if (nvbo->bo.resource->mem_type == TTM_PL_TT)
278 rep->domain = NOUVEAU_GEM_DOMAIN_GART;
279 else
280 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
281 rep->offset = nvbo->offset;
282 if (vmm->vmm.object.oclass >= NVIF_CLASS_VMM_NV50) {
283 vma = nouveau_vma_find(nvbo, vmm);
284 if (!vma)
285 return -EINVAL;
286
287 rep->offset = vma->addr;
288 }
289
290 rep->size = nvbo->bo.base.size;
291 rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.base.vma_node);
292 rep->tile_mode = nvbo->mode;
293 rep->tile_flags = nvbo->contig ? 0 : NOUVEAU_GEM_TILE_NONCONTIG;
294 if (cli->device.info.family >= NV_DEVICE_INFO_V0_FERMI)
295 rep->tile_flags |= nvbo->kind << 8;
296 else
297 if (cli->device.info.family >= NV_DEVICE_INFO_V0_TESLA)
298 rep->tile_flags |= nvbo->kind << 8 | nvbo->comp << 16;
299 else
300 rep->tile_flags |= nvbo->zeta;
301 return 0;
302}
303
304int
305nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
306 struct drm_file *file_priv)
307{
308 struct nouveau_cli *cli = nouveau_cli(file_priv);
309 struct drm_nouveau_gem_new *req = data;
310 struct nouveau_bo *nvbo = NULL;
311 int ret = 0;
312
313 ret = nouveau_gem_new(cli, req->info.size, req->align,
314 req->info.domain, req->info.tile_mode,
315 req->info.tile_flags, &nvbo);
316 if (ret)
317 return ret;
318
319 ret = drm_gem_handle_create(file_priv, &nvbo->bo.base,
320 &req->info.handle);
321 if (ret == 0) {
322 ret = nouveau_gem_info(file_priv, &nvbo->bo.base, &req->info);
323 if (ret)
324 drm_gem_handle_delete(file_priv, req->info.handle);
325 }
326
327
328 drm_gem_object_put(&nvbo->bo.base);
329 return ret;
330}
331
332static int
333nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
334 uint32_t write_domains, uint32_t valid_domains)
335{
336 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
337 struct ttm_buffer_object *bo = &nvbo->bo;
338 uint32_t domains = valid_domains & nvbo->valid_domains &
339 (write_domains ? write_domains : read_domains);
340 uint32_t pref_domains = 0;;
341
342 if (!domains)
343 return -EINVAL;
344
345 valid_domains &= ~(NOUVEAU_GEM_DOMAIN_VRAM | NOUVEAU_GEM_DOMAIN_GART);
346
347 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
348 bo->resource->mem_type == TTM_PL_VRAM)
349 pref_domains |= NOUVEAU_GEM_DOMAIN_VRAM;
350
351 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
352 bo->resource->mem_type == TTM_PL_TT)
353 pref_domains |= NOUVEAU_GEM_DOMAIN_GART;
354
355 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
356 pref_domains |= NOUVEAU_GEM_DOMAIN_VRAM;
357
358 else
359 pref_domains |= NOUVEAU_GEM_DOMAIN_GART;
360
361 nouveau_bo_placement_set(nvbo, pref_domains, valid_domains);
362
363 return 0;
364}
365
366struct validate_op {
367 struct list_head list;
368 struct ww_acquire_ctx ticket;
369};
370
371static void
372validate_fini_no_ticket(struct validate_op *op, struct nouveau_channel *chan,
373 struct nouveau_fence *fence,
374 struct drm_nouveau_gem_pushbuf_bo *pbbo)
375{
376 struct nouveau_bo *nvbo;
377 struct drm_nouveau_gem_pushbuf_bo *b;
378
379 while (!list_empty(&op->list)) {
380 nvbo = list_entry(op->list.next, struct nouveau_bo, entry);
381 b = &pbbo[nvbo->pbbo_index];
382
383 if (likely(fence)) {
384 nouveau_bo_fence(nvbo, fence, !!b->write_domains);
385
386 if (chan->vmm->vmm.object.oclass >= NVIF_CLASS_VMM_NV50) {
387 struct nouveau_vma *vma =
388 (void *)(unsigned long)b->user_priv;
389 nouveau_fence_unref(&vma->fence);
390 dma_fence_get(&fence->base);
391 vma->fence = fence;
392 }
393 }
394
395 if (unlikely(nvbo->validate_mapped)) {
396 ttm_bo_kunmap(&nvbo->kmap);
397 nvbo->validate_mapped = false;
398 }
399
400 list_del(&nvbo->entry);
401 nvbo->reserved_by = NULL;
402 ttm_bo_unreserve(&nvbo->bo);
403 drm_gem_object_put(&nvbo->bo.base);
404 }
405}
406
407static void
408validate_fini(struct validate_op *op, struct nouveau_channel *chan,
409 struct nouveau_fence *fence,
410 struct drm_nouveau_gem_pushbuf_bo *pbbo)
411{
412 validate_fini_no_ticket(op, chan, fence, pbbo);
413 ww_acquire_fini(&op->ticket);
414}
415
416static int
417validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
418 struct drm_nouveau_gem_pushbuf_bo *pbbo,
419 int nr_buffers, struct validate_op *op)
420{
421 struct nouveau_cli *cli = nouveau_cli(file_priv);
422 int trycnt = 0;
423 int ret = -EINVAL, i;
424 struct nouveau_bo *res_bo = NULL;
425 LIST_HEAD(gart_list);
426 LIST_HEAD(vram_list);
427 LIST_HEAD(both_list);
428
429 ww_acquire_init(&op->ticket, &reservation_ww_class);
430retry:
431 if (++trycnt > 100000) {
432 NV_PRINTK(err, cli, "%s failed and gave up.\n", __func__);
433 return -EINVAL;
434 }
435
436 for (i = 0; i < nr_buffers; i++) {
437 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
438 struct drm_gem_object *gem;
439 struct nouveau_bo *nvbo;
440
441 gem = drm_gem_object_lookup(file_priv, b->handle);
442 if (!gem) {
443 NV_PRINTK(err, cli, "Unknown handle 0x%08x\n", b->handle);
444 ret = -ENOENT;
445 break;
446 }
447 nvbo = nouveau_gem_object(gem);
448 if (nvbo == res_bo) {
449 res_bo = NULL;
450 drm_gem_object_put(gem);
451 continue;
452 }
453
454 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
455 NV_PRINTK(err, cli, "multiple instances of buffer %d on "
456 "validation list\n", b->handle);
457 drm_gem_object_put(gem);
458 ret = -EINVAL;
459 break;
460 }
461
462 ret = ttm_bo_reserve(&nvbo->bo, true, false, &op->ticket);
463 if (ret) {
464 list_splice_tail_init(&vram_list, &op->list);
465 list_splice_tail_init(&gart_list, &op->list);
466 list_splice_tail_init(&both_list, &op->list);
467 validate_fini_no_ticket(op, chan, NULL, NULL);
468 if (unlikely(ret == -EDEADLK)) {
469 ret = ttm_bo_reserve_slowpath(&nvbo->bo, true,
470 &op->ticket);
471 if (!ret)
472 res_bo = nvbo;
473 }
474 if (unlikely(ret)) {
475 if (ret != -ERESTARTSYS)
476 NV_PRINTK(err, cli, "fail reserve\n");
477 break;
478 }
479 }
480
481 if (chan->vmm->vmm.object.oclass >= NVIF_CLASS_VMM_NV50) {
482 struct nouveau_vmm *vmm = chan->vmm;
483 struct nouveau_vma *vma = nouveau_vma_find(nvbo, vmm);
484 if (!vma) {
485 NV_PRINTK(err, cli, "vma not found!\n");
486 ret = -EINVAL;
487 break;
488 }
489
490 b->user_priv = (uint64_t)(unsigned long)vma;
491 } else {
492 b->user_priv = (uint64_t)(unsigned long)nvbo;
493 }
494
495 nvbo->reserved_by = file_priv;
496 nvbo->pbbo_index = i;
497 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
498 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
499 list_add_tail(&nvbo->entry, &both_list);
500 else
501 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
502 list_add_tail(&nvbo->entry, &vram_list);
503 else
504 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
505 list_add_tail(&nvbo->entry, &gart_list);
506 else {
507 NV_PRINTK(err, cli, "invalid valid domains: 0x%08x\n",
508 b->valid_domains);
509 list_add_tail(&nvbo->entry, &both_list);
510 ret = -EINVAL;
511 break;
512 }
513 if (nvbo == res_bo)
514 goto retry;
515 }
516
517 ww_acquire_done(&op->ticket);
518 list_splice_tail(&vram_list, &op->list);
519 list_splice_tail(&gart_list, &op->list);
520 list_splice_tail(&both_list, &op->list);
521 if (ret)
522 validate_fini(op, chan, NULL, NULL);
523 return ret;
524
525}
526
527static int
528validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli,
529 struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo)
530{
531 struct nouveau_drm *drm = chan->drm;
532 struct nouveau_bo *nvbo;
533 int ret, relocs = 0;
534
535 list_for_each_entry(nvbo, list, entry) {
536 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
537
538 ret = nouveau_gem_set_domain(&nvbo->bo.base, b->read_domains,
539 b->write_domains,
540 b->valid_domains);
541 if (unlikely(ret)) {
542 NV_PRINTK(err, cli, "fail set_domain\n");
543 return ret;
544 }
545
546 ret = nouveau_bo_validate(nvbo, true, false);
547 if (unlikely(ret)) {
548 if (ret != -ERESTARTSYS)
549 NV_PRINTK(err, cli, "fail ttm_validate\n");
550 return ret;
551 }
552
553 ret = nouveau_fence_sync(nvbo, chan, !!b->write_domains, true);
554 if (unlikely(ret)) {
555 if (ret != -ERESTARTSYS)
556 NV_PRINTK(err, cli, "fail post-validate sync\n");
557 return ret;
558 }
559
560 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
561 if (nvbo->offset == b->presumed.offset &&
562 ((nvbo->bo.resource->mem_type == TTM_PL_VRAM &&
563 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
564 (nvbo->bo.resource->mem_type == TTM_PL_TT &&
565 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
566 continue;
567
568 if (nvbo->bo.resource->mem_type == TTM_PL_TT)
569 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
570 else
571 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
572 b->presumed.offset = nvbo->offset;
573 b->presumed.valid = 0;
574 relocs++;
575 }
576 }
577
578 return relocs;
579}
580
581static int
582nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
583 struct drm_file *file_priv,
584 struct drm_nouveau_gem_pushbuf_bo *pbbo,
585 int nr_buffers,
586 struct validate_op *op, bool *apply_relocs)
587{
588 struct nouveau_cli *cli = nouveau_cli(file_priv);
589 int ret;
590
591 INIT_LIST_HEAD(&op->list);
592
593 if (nr_buffers == 0)
594 return 0;
595
596 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
597 if (unlikely(ret)) {
598 if (ret != -ERESTARTSYS)
599 NV_PRINTK(err, cli, "validate_init\n");
600 return ret;
601 }
602
603 ret = validate_list(chan, cli, &op->list, pbbo);
604 if (unlikely(ret < 0)) {
605 if (ret != -ERESTARTSYS)
606 NV_PRINTK(err, cli, "validating bo list\n");
607 validate_fini(op, chan, NULL, NULL);
608 return ret;
609 } else if (ret > 0) {
610 *apply_relocs = true;
611 }
612
613 return 0;
614}
615
616static inline void
617u_free(void *addr)
618{
619 kvfree(addr);
620}
621
622static inline void *
623u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
624{
625 void *mem;
626 void __user *userptr = (void __force __user *)(uintptr_t)user;
627
628 size *= nmemb;
629
630 mem = kvmalloc(size, GFP_KERNEL);
631 if (!mem)
632 return ERR_PTR(-ENOMEM);
633
634 if (copy_from_user(mem, userptr, size)) {
635 u_free(mem);
636 return ERR_PTR(-EFAULT);
637 }
638
639 return mem;
640}
641
642static int
643nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
644 struct drm_nouveau_gem_pushbuf *req,
645 struct drm_nouveau_gem_pushbuf_reloc *reloc,
646 struct drm_nouveau_gem_pushbuf_bo *bo)
647{
648 int ret = 0;
649 unsigned i;
650
651 for (i = 0; i < req->nr_relocs; i++) {
652 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
653 struct drm_nouveau_gem_pushbuf_bo *b;
654 struct nouveau_bo *nvbo;
655 uint32_t data;
656
657 if (unlikely(r->bo_index >= req->nr_buffers)) {
658 NV_PRINTK(err, cli, "reloc bo index invalid\n");
659 ret = -EINVAL;
660 break;
661 }
662
663 b = &bo[r->bo_index];
664 if (b->presumed.valid)
665 continue;
666
667 if (unlikely(r->reloc_bo_index >= req->nr_buffers)) {
668 NV_PRINTK(err, cli, "reloc container bo index invalid\n");
669 ret = -EINVAL;
670 break;
671 }
672 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
673
674 if (unlikely(r->reloc_bo_offset + 4 >
675 nvbo->bo.base.size)) {
676 NV_PRINTK(err, cli, "reloc outside of bo\n");
677 ret = -EINVAL;
678 break;
679 }
680
681 if (!nvbo->kmap.virtual) {
682 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.resource->num_pages,
683 &nvbo->kmap);
684 if (ret) {
685 NV_PRINTK(err, cli, "failed kmap for reloc\n");
686 break;
687 }
688 nvbo->validate_mapped = true;
689 }
690
691 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
692 data = b->presumed.offset + r->data;
693 else
694 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
695 data = (b->presumed.offset + r->data) >> 32;
696 else
697 data = r->data;
698
699 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
700 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
701 data |= r->tor;
702 else
703 data |= r->vor;
704 }
705
706 ret = ttm_bo_wait(&nvbo->bo, false, false);
707 if (ret) {
708 NV_PRINTK(err, cli, "reloc wait_idle failed: %d\n", ret);
709 break;
710 }
711
712 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
713 }
714
715 return ret;
716}
717
718int
719nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
720 struct drm_file *file_priv)
721{
722 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
723 struct nouveau_cli *cli = nouveau_cli(file_priv);
724 struct nouveau_abi16_chan *temp;
725 struct nouveau_drm *drm = nouveau_drm(dev);
726 struct drm_nouveau_gem_pushbuf *req = data;
727 struct drm_nouveau_gem_pushbuf_push *push;
728 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
729 struct drm_nouveau_gem_pushbuf_bo *bo;
730 struct nouveau_channel *chan = NULL;
731 struct validate_op op;
732 struct nouveau_fence *fence = NULL;
733 int i, j, ret = 0;
734 bool do_reloc = false, sync = false;
735
736 if (unlikely(!abi16))
737 return -ENOMEM;
738
739 list_for_each_entry(temp, &abi16->channels, head) {
740 if (temp->chan->chid == req->channel) {
741 chan = temp->chan;
742 break;
743 }
744 }
745
746 if (!chan)
747 return nouveau_abi16_put(abi16, -ENOENT);
748 if (unlikely(atomic_read(&chan->killed)))
749 return nouveau_abi16_put(abi16, -ENODEV);
750
751 sync = req->vram_available & NOUVEAU_GEM_PUSHBUF_SYNC;
752
753 req->vram_available = drm->gem.vram_available;
754 req->gart_available = drm->gem.gart_available;
755 if (unlikely(req->nr_push == 0))
756 goto out_next;
757
758 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
759 NV_PRINTK(err, cli, "pushbuf push count exceeds limit: %d max %d\n",
760 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
761 return nouveau_abi16_put(abi16, -EINVAL);
762 }
763
764 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
765 NV_PRINTK(err, cli, "pushbuf bo count exceeds limit: %d max %d\n",
766 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
767 return nouveau_abi16_put(abi16, -EINVAL);
768 }
769
770 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
771 NV_PRINTK(err, cli, "pushbuf reloc count exceeds limit: %d max %d\n",
772 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
773 return nouveau_abi16_put(abi16, -EINVAL);
774 }
775
776 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
777 if (IS_ERR(push))
778 return nouveau_abi16_put(abi16, PTR_ERR(push));
779
780 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
781 if (IS_ERR(bo)) {
782 u_free(push);
783 return nouveau_abi16_put(abi16, PTR_ERR(bo));
784 }
785
786
787 for (i = 0; i < req->nr_push; i++) {
788 if (push[i].bo_index >= req->nr_buffers) {
789 NV_PRINTK(err, cli, "push %d buffer not in list\n", i);
790 ret = -EINVAL;
791 goto out_prevalid;
792 }
793 }
794
795
796revalidate:
797 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo,
798 req->nr_buffers, &op, &do_reloc);
799 if (ret) {
800 if (ret != -ERESTARTSYS)
801 NV_PRINTK(err, cli, "validate: %d\n", ret);
802 goto out_prevalid;
803 }
804
805
806 if (do_reloc) {
807 if (!reloc) {
808 validate_fini(&op, chan, NULL, bo);
809 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
810 if (IS_ERR(reloc)) {
811 ret = PTR_ERR(reloc);
812 goto out_prevalid;
813 }
814
815 goto revalidate;
816 }
817
818 ret = nouveau_gem_pushbuf_reloc_apply(cli, req, reloc, bo);
819 if (ret) {
820 NV_PRINTK(err, cli, "reloc apply: %d\n", ret);
821 goto out;
822 }
823 }
824
825 if (chan->dma.ib_max) {
826 ret = nouveau_dma_wait(chan, req->nr_push + 1, 16);
827 if (ret) {
828 NV_PRINTK(err, cli, "nv50cal_space: %d\n", ret);
829 goto out;
830 }
831
832 for (i = 0; i < req->nr_push; i++) {
833 struct nouveau_vma *vma = (void *)(unsigned long)
834 bo[push[i].bo_index].user_priv;
835
836 nv50_dma_push(chan, vma->addr + push[i].offset,
837 push[i].length);
838 }
839 } else
840 if (drm->client.device.info.chipset >= 0x25) {
841 ret = PUSH_WAIT(chan->chan.push, req->nr_push * 2);
842 if (ret) {
843 NV_PRINTK(err, cli, "cal_space: %d\n", ret);
844 goto out;
845 }
846
847 for (i = 0; i < req->nr_push; i++) {
848 struct nouveau_bo *nvbo = (void *)(unsigned long)
849 bo[push[i].bo_index].user_priv;
850
851 PUSH_CALL(chan->chan.push, nvbo->offset + push[i].offset);
852 PUSH_DATA(chan->chan.push, 0);
853 }
854 } else {
855 ret = PUSH_WAIT(chan->chan.push, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
856 if (ret) {
857 NV_PRINTK(err, cli, "jmp_space: %d\n", ret);
858 goto out;
859 }
860
861 for (i = 0; i < req->nr_push; i++) {
862 struct nouveau_bo *nvbo = (void *)(unsigned long)
863 bo[push[i].bo_index].user_priv;
864 uint32_t cmd;
865
866 cmd = chan->push.addr + ((chan->dma.cur + 2) << 2);
867 cmd |= 0x20000000;
868 if (unlikely(cmd != req->suffix0)) {
869 if (!nvbo->kmap.virtual) {
870 ret = ttm_bo_kmap(&nvbo->bo, 0,
871 nvbo->bo.resource->
872 num_pages,
873 &nvbo->kmap);
874 if (ret) {
875 WIND_RING(chan);
876 goto out;
877 }
878 nvbo->validate_mapped = true;
879 }
880
881 nouveau_bo_wr32(nvbo, (push[i].offset +
882 push[i].length - 8) / 4, cmd);
883 }
884
885 PUSH_JUMP(chan->chan.push, nvbo->offset + push[i].offset);
886 PUSH_DATA(chan->chan.push, 0);
887 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
888 PUSH_DATA(chan->chan.push, 0);
889 }
890 }
891
892 ret = nouveau_fence_new(chan, false, &fence);
893 if (ret) {
894 NV_PRINTK(err, cli, "error fencing pushbuf: %d\n", ret);
895 WIND_RING(chan);
896 goto out;
897 }
898
899 if (sync) {
900 if (!(ret = nouveau_fence_wait(fence, false, false))) {
901 if ((ret = dma_fence_get_status(&fence->base)) == 1)
902 ret = 0;
903 }
904 }
905
906out:
907 validate_fini(&op, chan, fence, bo);
908 nouveau_fence_unref(&fence);
909
910 if (do_reloc) {
911 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
912 u64_to_user_ptr(req->buffers);
913
914 for (i = 0; i < req->nr_buffers; i++) {
915 if (bo[i].presumed.valid)
916 continue;
917
918 if (copy_to_user(&upbbo[i].presumed, &bo[i].presumed,
919 sizeof(bo[i].presumed))) {
920 ret = -EFAULT;
921 break;
922 }
923 }
924 }
925out_prevalid:
926 if (!IS_ERR(reloc))
927 u_free(reloc);
928 u_free(bo);
929 u_free(push);
930
931out_next:
932 if (chan->dma.ib_max) {
933 req->suffix0 = 0x00000000;
934 req->suffix1 = 0x00000000;
935 } else
936 if (drm->client.device.info.chipset >= 0x25) {
937 req->suffix0 = 0x00020000;
938 req->suffix1 = 0x00000000;
939 } else {
940 req->suffix0 = 0x20000000 |
941 (chan->push.addr + ((chan->dma.cur + 2) << 2));
942 req->suffix1 = 0x00000000;
943 }
944
945 return nouveau_abi16_put(abi16, ret);
946}
947
948int
949nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
950 struct drm_file *file_priv)
951{
952 struct drm_nouveau_gem_cpu_prep *req = data;
953 struct drm_gem_object *gem;
954 struct nouveau_bo *nvbo;
955 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
956 bool write = !!(req->flags & NOUVEAU_GEM_CPU_PREP_WRITE);
957 long lret;
958 int ret;
959
960 gem = drm_gem_object_lookup(file_priv, req->handle);
961 if (!gem)
962 return -ENOENT;
963 nvbo = nouveau_gem_object(gem);
964
965 lret = dma_resv_wait_timeout(nvbo->bo.base.resv, write, true,
966 no_wait ? 0 : 30 * HZ);
967 if (!lret)
968 ret = -EBUSY;
969 else if (lret > 0)
970 ret = 0;
971 else
972 ret = lret;
973
974 nouveau_bo_sync_for_cpu(nvbo);
975 drm_gem_object_put(gem);
976
977 return ret;
978}
979
980int
981nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
982 struct drm_file *file_priv)
983{
984 struct drm_nouveau_gem_cpu_fini *req = data;
985 struct drm_gem_object *gem;
986 struct nouveau_bo *nvbo;
987
988 gem = drm_gem_object_lookup(file_priv, req->handle);
989 if (!gem)
990 return -ENOENT;
991 nvbo = nouveau_gem_object(gem);
992
993 nouveau_bo_sync_for_device(nvbo);
994 drm_gem_object_put(gem);
995 return 0;
996}
997
998int
999nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
1000 struct drm_file *file_priv)
1001{
1002 struct drm_nouveau_gem_info *req = data;
1003 struct drm_gem_object *gem;
1004 int ret;
1005
1006 gem = drm_gem_object_lookup(file_priv, req->handle);
1007 if (!gem)
1008 return -ENOENT;
1009
1010 ret = nouveau_gem_info(file_priv, gem, req);
1011 drm_gem_object_put(gem);
1012 return ret;
1013}
1014
1015
