Loading...
1/*
2 * Copyright (C) 2008 Ben Skeggs.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 */
26
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 /* reset filp so nouveau_bo_del_ttm() can test for it */
54 gem->filp = NULL;
55 ttm_bo_unref(&bo);
56
57 pm_runtime_mark_last_busy(dev);
58 pm_runtime_put_autosuspend(dev);
59}
60
61int
62nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv)
63{
64 struct nouveau_cli *cli = nouveau_cli(file_priv);
65 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
66 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
67 struct nvkm_vma *vma;
68 struct device *dev = drm->dev->dev;
69 int ret;
70
71 if (!cli->vm)
72 return 0;
73
74 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, NULL);
75 if (ret)
76 return ret;
77
78 vma = nouveau_bo_vma_find(nvbo, cli->vm);
79 if (!vma) {
80 vma = kzalloc(sizeof(*vma), GFP_KERNEL);
81 if (!vma) {
82 ret = -ENOMEM;
83 goto out;
84 }
85
86 ret = pm_runtime_get_sync(dev);
87 if (ret < 0 && ret != -EACCES) {
88 kfree(vma);
89 goto out;
90 }
91
92 ret = nouveau_bo_vma_add(nvbo, cli->vm, vma);
93 if (ret)
94 kfree(vma);
95
96 pm_runtime_mark_last_busy(dev);
97 pm_runtime_put_autosuspend(dev);
98 } else {
99 vma->refcount++;
100 }
101
102out:
103 ttm_bo_unreserve(&nvbo->bo);
104 return ret;
105}
106
107static void
108nouveau_gem_object_delete(void *data)
109{
110 struct nvkm_vma *vma = data;
111 nvkm_vm_unmap(vma);
112 nvkm_vm_put(vma);
113 kfree(vma);
114}
115
116static void
117nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nvkm_vma *vma)
118{
119 const bool mapped = nvbo->bo.mem.mem_type != TTM_PL_SYSTEM;
120 struct reservation_object *resv = nvbo->bo.resv;
121 struct reservation_object_list *fobj;
122 struct fence *fence = NULL;
123
124 fobj = reservation_object_get_list(resv);
125
126 list_del(&vma->head);
127
128 if (fobj && fobj->shared_count > 1)
129 ttm_bo_wait(&nvbo->bo, true, false, false);
130 else if (fobj && fobj->shared_count == 1)
131 fence = rcu_dereference_protected(fobj->shared[0],
132 reservation_object_held(resv));
133 else
134 fence = reservation_object_get_excl(nvbo->bo.resv);
135
136 if (fence && mapped) {
137 nouveau_fence_work(fence, nouveau_gem_object_delete, vma);
138 } else {
139 if (mapped)
140 nvkm_vm_unmap(vma);
141 nvkm_vm_put(vma);
142 kfree(vma);
143 }
144}
145
146void
147nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv)
148{
149 struct nouveau_cli *cli = nouveau_cli(file_priv);
150 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
151 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
152 struct device *dev = drm->dev->dev;
153 struct nvkm_vma *vma;
154 int ret;
155
156 if (!cli->vm)
157 return;
158
159 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, NULL);
160 if (ret)
161 return;
162
163 vma = nouveau_bo_vma_find(nvbo, cli->vm);
164 if (vma) {
165 if (--vma->refcount == 0) {
166 ret = pm_runtime_get_sync(dev);
167 if (!WARN_ON(ret < 0 && ret != -EACCES)) {
168 nouveau_gem_object_unmap(nvbo, vma);
169 pm_runtime_mark_last_busy(dev);
170 pm_runtime_put_autosuspend(dev);
171 }
172 }
173 }
174 ttm_bo_unreserve(&nvbo->bo);
175}
176
177int
178nouveau_gem_new(struct drm_device *dev, int size, int align, uint32_t domain,
179 uint32_t tile_mode, uint32_t tile_flags,
180 struct nouveau_bo **pnvbo)
181{
182 struct nouveau_drm *drm = nouveau_drm(dev);
183 struct nouveau_bo *nvbo;
184 u32 flags = 0;
185 int ret;
186
187 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
188 flags |= TTM_PL_FLAG_VRAM;
189 if (domain & NOUVEAU_GEM_DOMAIN_GART)
190 flags |= TTM_PL_FLAG_TT;
191 if (!flags || domain & NOUVEAU_GEM_DOMAIN_CPU)
192 flags |= TTM_PL_FLAG_SYSTEM;
193
194 if (domain & NOUVEAU_GEM_DOMAIN_COHERENT)
195 flags |= TTM_PL_FLAG_UNCACHED;
196
197 ret = nouveau_bo_new(dev, size, align, flags, tile_mode,
198 tile_flags, NULL, NULL, pnvbo);
199 if (ret)
200 return ret;
201 nvbo = *pnvbo;
202
203 /* we restrict allowed domains on nv50+ to only the types
204 * that were requested at creation time. not possibly on
205 * earlier chips without busting the ABI.
206 */
207 nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM |
208 NOUVEAU_GEM_DOMAIN_GART;
209 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA)
210 nvbo->valid_domains &= domain;
211
212 /* Initialize the embedded gem-object. We return a single gem-reference
213 * to the caller, instead of a normal nouveau_bo ttm reference. */
214 ret = drm_gem_object_init(dev, &nvbo->gem, nvbo->bo.mem.size);
215 if (ret) {
216 nouveau_bo_ref(NULL, pnvbo);
217 return -ENOMEM;
218 }
219
220 nvbo->bo.persistent_swap_storage = nvbo->gem.filp;
221 return 0;
222}
223
224static int
225nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
226 struct drm_nouveau_gem_info *rep)
227{
228 struct nouveau_cli *cli = nouveau_cli(file_priv);
229 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
230 struct nvkm_vma *vma;
231
232 if (is_power_of_2(nvbo->valid_domains))
233 rep->domain = nvbo->valid_domains;
234 else if (nvbo->bo.mem.mem_type == TTM_PL_TT)
235 rep->domain = NOUVEAU_GEM_DOMAIN_GART;
236 else
237 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
238 rep->offset = nvbo->bo.offset;
239 if (cli->vm) {
240 vma = nouveau_bo_vma_find(nvbo, cli->vm);
241 if (!vma)
242 return -EINVAL;
243
244 rep->offset = vma->offset;
245 }
246
247 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
248 rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.vma_node);
249 rep->tile_mode = nvbo->tile_mode;
250 rep->tile_flags = nvbo->tile_flags;
251 return 0;
252}
253
254int
255nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
256 struct drm_file *file_priv)
257{
258 struct nouveau_drm *drm = nouveau_drm(dev);
259 struct nouveau_cli *cli = nouveau_cli(file_priv);
260 struct nvkm_fb *fb = nvxx_fb(&drm->device);
261 struct drm_nouveau_gem_new *req = data;
262 struct nouveau_bo *nvbo = NULL;
263 int ret = 0;
264
265 if (!nvkm_fb_memtype_valid(fb, req->info.tile_flags)) {
266 NV_PRINTK(err, cli, "bad page flags: 0x%08x\n", req->info.tile_flags);
267 return -EINVAL;
268 }
269
270 ret = nouveau_gem_new(dev, req->info.size, req->align,
271 req->info.domain, req->info.tile_mode,
272 req->info.tile_flags, &nvbo);
273 if (ret)
274 return ret;
275
276 ret = drm_gem_handle_create(file_priv, &nvbo->gem, &req->info.handle);
277 if (ret == 0) {
278 ret = nouveau_gem_info(file_priv, &nvbo->gem, &req->info);
279 if (ret)
280 drm_gem_handle_delete(file_priv, req->info.handle);
281 }
282
283 /* drop reference from allocate - handle holds it now */
284 drm_gem_object_unreference_unlocked(&nvbo->gem);
285 return ret;
286}
287
288static int
289nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
290 uint32_t write_domains, uint32_t valid_domains)
291{
292 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
293 struct ttm_buffer_object *bo = &nvbo->bo;
294 uint32_t domains = valid_domains & nvbo->valid_domains &
295 (write_domains ? write_domains : read_domains);
296 uint32_t pref_flags = 0, valid_flags = 0;
297
298 if (!domains)
299 return -EINVAL;
300
301 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
302 valid_flags |= TTM_PL_FLAG_VRAM;
303
304 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART)
305 valid_flags |= TTM_PL_FLAG_TT;
306
307 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
308 bo->mem.mem_type == TTM_PL_VRAM)
309 pref_flags |= TTM_PL_FLAG_VRAM;
310
311 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
312 bo->mem.mem_type == TTM_PL_TT)
313 pref_flags |= TTM_PL_FLAG_TT;
314
315 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
316 pref_flags |= TTM_PL_FLAG_VRAM;
317
318 else
319 pref_flags |= TTM_PL_FLAG_TT;
320
321 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags);
322
323 return 0;
324}
325
326struct validate_op {
327 struct list_head list;
328 struct ww_acquire_ctx ticket;
329};
330
331static void
332validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence,
333 struct drm_nouveau_gem_pushbuf_bo *pbbo)
334{
335 struct nouveau_bo *nvbo;
336 struct drm_nouveau_gem_pushbuf_bo *b;
337
338 while (!list_empty(&op->list)) {
339 nvbo = list_entry(op->list.next, struct nouveau_bo, entry);
340 b = &pbbo[nvbo->pbbo_index];
341
342 if (likely(fence))
343 nouveau_bo_fence(nvbo, fence, !!b->write_domains);
344
345 if (unlikely(nvbo->validate_mapped)) {
346 ttm_bo_kunmap(&nvbo->kmap);
347 nvbo->validate_mapped = false;
348 }
349
350 list_del(&nvbo->entry);
351 nvbo->reserved_by = NULL;
352 ttm_bo_unreserve_ticket(&nvbo->bo, &op->ticket);
353 drm_gem_object_unreference_unlocked(&nvbo->gem);
354 }
355}
356
357static void
358validate_fini(struct validate_op *op, struct nouveau_fence *fence,
359 struct drm_nouveau_gem_pushbuf_bo *pbbo)
360{
361 validate_fini_no_ticket(op, fence, pbbo);
362 ww_acquire_fini(&op->ticket);
363}
364
365static int
366validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
367 struct drm_nouveau_gem_pushbuf_bo *pbbo,
368 int nr_buffers, struct validate_op *op)
369{
370 struct nouveau_cli *cli = nouveau_cli(file_priv);
371 struct drm_device *dev = chan->drm->dev;
372 int trycnt = 0;
373 int ret, i;
374 struct nouveau_bo *res_bo = NULL;
375 LIST_HEAD(gart_list);
376 LIST_HEAD(vram_list);
377 LIST_HEAD(both_list);
378
379 ww_acquire_init(&op->ticket, &reservation_ww_class);
380retry:
381 if (++trycnt > 100000) {
382 NV_PRINTK(err, cli, "%s failed and gave up.\n", __func__);
383 return -EINVAL;
384 }
385
386 for (i = 0; i < nr_buffers; i++) {
387 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
388 struct drm_gem_object *gem;
389 struct nouveau_bo *nvbo;
390
391 gem = drm_gem_object_lookup(dev, file_priv, b->handle);
392 if (!gem) {
393 NV_PRINTK(err, cli, "Unknown handle 0x%08x\n", b->handle);
394 ret = -ENOENT;
395 break;
396 }
397 nvbo = nouveau_gem_object(gem);
398 if (nvbo == res_bo) {
399 res_bo = NULL;
400 drm_gem_object_unreference_unlocked(gem);
401 continue;
402 }
403
404 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
405 NV_PRINTK(err, cli, "multiple instances of buffer %d on "
406 "validation list\n", b->handle);
407 drm_gem_object_unreference_unlocked(gem);
408 ret = -EINVAL;
409 break;
410 }
411
412 ret = ttm_bo_reserve(&nvbo->bo, true, false, true, &op->ticket);
413 if (ret) {
414 list_splice_tail_init(&vram_list, &op->list);
415 list_splice_tail_init(&gart_list, &op->list);
416 list_splice_tail_init(&both_list, &op->list);
417 validate_fini_no_ticket(op, NULL, NULL);
418 if (unlikely(ret == -EDEADLK)) {
419 ret = ttm_bo_reserve_slowpath(&nvbo->bo, true,
420 &op->ticket);
421 if (!ret)
422 res_bo = nvbo;
423 }
424 if (unlikely(ret)) {
425 if (ret != -ERESTARTSYS)
426 NV_PRINTK(err, cli, "fail reserve\n");
427 break;
428 }
429 }
430
431 b->user_priv = (uint64_t)(unsigned long)nvbo;
432 nvbo->reserved_by = file_priv;
433 nvbo->pbbo_index = i;
434 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
435 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
436 list_add_tail(&nvbo->entry, &both_list);
437 else
438 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
439 list_add_tail(&nvbo->entry, &vram_list);
440 else
441 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
442 list_add_tail(&nvbo->entry, &gart_list);
443 else {
444 NV_PRINTK(err, cli, "invalid valid domains: 0x%08x\n",
445 b->valid_domains);
446 list_add_tail(&nvbo->entry, &both_list);
447 ret = -EINVAL;
448 break;
449 }
450 if (nvbo == res_bo)
451 goto retry;
452 }
453
454 ww_acquire_done(&op->ticket);
455 list_splice_tail(&vram_list, &op->list);
456 list_splice_tail(&gart_list, &op->list);
457 list_splice_tail(&both_list, &op->list);
458 if (ret)
459 validate_fini(op, NULL, NULL);
460 return ret;
461
462}
463
464static int
465validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli,
466 struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo,
467 uint64_t user_pbbo_ptr)
468{
469 struct nouveau_drm *drm = chan->drm;
470 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
471 (void __force __user *)(uintptr_t)user_pbbo_ptr;
472 struct nouveau_bo *nvbo;
473 int ret, relocs = 0;
474
475 list_for_each_entry(nvbo, list, entry) {
476 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
477
478 ret = nouveau_gem_set_domain(&nvbo->gem, b->read_domains,
479 b->write_domains,
480 b->valid_domains);
481 if (unlikely(ret)) {
482 NV_PRINTK(err, cli, "fail set_domain\n");
483 return ret;
484 }
485
486 ret = nouveau_bo_validate(nvbo, true, false);
487 if (unlikely(ret)) {
488 if (ret != -ERESTARTSYS)
489 NV_PRINTK(err, cli, "fail ttm_validate\n");
490 return ret;
491 }
492
493 ret = nouveau_fence_sync(nvbo, chan, !!b->write_domains, true);
494 if (unlikely(ret)) {
495 if (ret != -ERESTARTSYS)
496 NV_PRINTK(err, cli, "fail post-validate sync\n");
497 return ret;
498 }
499
500 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
501 if (nvbo->bo.offset == b->presumed.offset &&
502 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
503 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
504 (nvbo->bo.mem.mem_type == TTM_PL_TT &&
505 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
506 continue;
507
508 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
509 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
510 else
511 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
512 b->presumed.offset = nvbo->bo.offset;
513 b->presumed.valid = 0;
514 relocs++;
515
516 if (copy_to_user(&upbbo[nvbo->pbbo_index].presumed,
517 &b->presumed, sizeof(b->presumed)))
518 return -EFAULT;
519 }
520 }
521
522 return relocs;
523}
524
525static int
526nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
527 struct drm_file *file_priv,
528 struct drm_nouveau_gem_pushbuf_bo *pbbo,
529 uint64_t user_buffers, int nr_buffers,
530 struct validate_op *op, int *apply_relocs)
531{
532 struct nouveau_cli *cli = nouveau_cli(file_priv);
533 int ret;
534
535 INIT_LIST_HEAD(&op->list);
536
537 if (nr_buffers == 0)
538 return 0;
539
540 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
541 if (unlikely(ret)) {
542 if (ret != -ERESTARTSYS)
543 NV_PRINTK(err, cli, "validate_init\n");
544 return ret;
545 }
546
547 ret = validate_list(chan, cli, &op->list, pbbo, user_buffers);
548 if (unlikely(ret < 0)) {
549 if (ret != -ERESTARTSYS)
550 NV_PRINTK(err, cli, "validating bo list\n");
551 validate_fini(op, NULL, NULL);
552 return ret;
553 }
554 *apply_relocs = ret;
555 return 0;
556}
557
558static inline void
559u_free(void *addr)
560{
561 kvfree(addr);
562}
563
564static inline void *
565u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
566{
567 void *mem;
568 void __user *userptr = (void __force __user *)(uintptr_t)user;
569
570 size *= nmemb;
571
572 mem = kmalloc(size, GFP_KERNEL | __GFP_NOWARN);
573 if (!mem)
574 mem = vmalloc(size);
575 if (!mem)
576 return ERR_PTR(-ENOMEM);
577
578 if (copy_from_user(mem, userptr, size)) {
579 u_free(mem);
580 return ERR_PTR(-EFAULT);
581 }
582
583 return mem;
584}
585
586static int
587nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
588 struct drm_nouveau_gem_pushbuf *req,
589 struct drm_nouveau_gem_pushbuf_bo *bo)
590{
591 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
592 int ret = 0;
593 unsigned i;
594
595 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
596 if (IS_ERR(reloc))
597 return PTR_ERR(reloc);
598
599 for (i = 0; i < req->nr_relocs; i++) {
600 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
601 struct drm_nouveau_gem_pushbuf_bo *b;
602 struct nouveau_bo *nvbo;
603 uint32_t data;
604
605 if (unlikely(r->bo_index > req->nr_buffers)) {
606 NV_PRINTK(err, cli, "reloc bo index invalid\n");
607 ret = -EINVAL;
608 break;
609 }
610
611 b = &bo[r->bo_index];
612 if (b->presumed.valid)
613 continue;
614
615 if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
616 NV_PRINTK(err, cli, "reloc container bo index invalid\n");
617 ret = -EINVAL;
618 break;
619 }
620 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
621
622 if (unlikely(r->reloc_bo_offset + 4 >
623 nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
624 NV_PRINTK(err, cli, "reloc outside of bo\n");
625 ret = -EINVAL;
626 break;
627 }
628
629 if (!nvbo->kmap.virtual) {
630 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
631 &nvbo->kmap);
632 if (ret) {
633 NV_PRINTK(err, cli, "failed kmap for reloc\n");
634 break;
635 }
636 nvbo->validate_mapped = true;
637 }
638
639 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
640 data = b->presumed.offset + r->data;
641 else
642 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
643 data = (b->presumed.offset + r->data) >> 32;
644 else
645 data = r->data;
646
647 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
648 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
649 data |= r->tor;
650 else
651 data |= r->vor;
652 }
653
654 ret = ttm_bo_wait(&nvbo->bo, true, false, false);
655 if (ret) {
656 NV_PRINTK(err, cli, "reloc wait_idle failed: %d\n", ret);
657 break;
658 }
659
660 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
661 }
662
663 u_free(reloc);
664 return ret;
665}
666
667int
668nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
669 struct drm_file *file_priv)
670{
671 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
672 struct nouveau_cli *cli = nouveau_cli(file_priv);
673 struct nouveau_abi16_chan *temp;
674 struct nouveau_drm *drm = nouveau_drm(dev);
675 struct drm_nouveau_gem_pushbuf *req = data;
676 struct drm_nouveau_gem_pushbuf_push *push;
677 struct drm_nouveau_gem_pushbuf_bo *bo;
678 struct nouveau_channel *chan = NULL;
679 struct validate_op op;
680 struct nouveau_fence *fence = NULL;
681 int i, j, ret = 0, do_reloc = 0;
682
683 if (unlikely(!abi16))
684 return -ENOMEM;
685
686 list_for_each_entry(temp, &abi16->channels, head) {
687 if (temp->chan->chid == req->channel) {
688 chan = temp->chan;
689 break;
690 }
691 }
692
693 if (!chan)
694 return nouveau_abi16_put(abi16, -ENOENT);
695
696 req->vram_available = drm->gem.vram_available;
697 req->gart_available = drm->gem.gart_available;
698 if (unlikely(req->nr_push == 0))
699 goto out_next;
700
701 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
702 NV_PRINTK(err, cli, "pushbuf push count exceeds limit: %d max %d\n",
703 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
704 return nouveau_abi16_put(abi16, -EINVAL);
705 }
706
707 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
708 NV_PRINTK(err, cli, "pushbuf bo count exceeds limit: %d max %d\n",
709 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
710 return nouveau_abi16_put(abi16, -EINVAL);
711 }
712
713 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
714 NV_PRINTK(err, cli, "pushbuf reloc count exceeds limit: %d max %d\n",
715 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
716 return nouveau_abi16_put(abi16, -EINVAL);
717 }
718
719 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
720 if (IS_ERR(push))
721 return nouveau_abi16_put(abi16, PTR_ERR(push));
722
723 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
724 if (IS_ERR(bo)) {
725 u_free(push);
726 return nouveau_abi16_put(abi16, PTR_ERR(bo));
727 }
728
729 /* Ensure all push buffers are on validate list */
730 for (i = 0; i < req->nr_push; i++) {
731 if (push[i].bo_index >= req->nr_buffers) {
732 NV_PRINTK(err, cli, "push %d buffer not in list\n", i);
733 ret = -EINVAL;
734 goto out_prevalid;
735 }
736 }
737
738 /* Validate buffer list */
739 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
740 req->nr_buffers, &op, &do_reloc);
741 if (ret) {
742 if (ret != -ERESTARTSYS)
743 NV_PRINTK(err, cli, "validate: %d\n", ret);
744 goto out_prevalid;
745 }
746
747 /* Apply any relocations that are required */
748 if (do_reloc) {
749 ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo);
750 if (ret) {
751 NV_PRINTK(err, cli, "reloc apply: %d\n", ret);
752 goto out;
753 }
754 }
755
756 if (chan->dma.ib_max) {
757 ret = nouveau_dma_wait(chan, req->nr_push + 1, 16);
758 if (ret) {
759 NV_PRINTK(err, cli, "nv50cal_space: %d\n", ret);
760 goto out;
761 }
762
763 for (i = 0; i < req->nr_push; i++) {
764 struct nouveau_bo *nvbo = (void *)(unsigned long)
765 bo[push[i].bo_index].user_priv;
766
767 nv50_dma_push(chan, nvbo, push[i].offset,
768 push[i].length);
769 }
770 } else
771 if (drm->device.info.chipset >= 0x25) {
772 ret = RING_SPACE(chan, req->nr_push * 2);
773 if (ret) {
774 NV_PRINTK(err, cli, "cal_space: %d\n", ret);
775 goto out;
776 }
777
778 for (i = 0; i < req->nr_push; i++) {
779 struct nouveau_bo *nvbo = (void *)(unsigned long)
780 bo[push[i].bo_index].user_priv;
781
782 OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2);
783 OUT_RING(chan, 0);
784 }
785 } else {
786 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
787 if (ret) {
788 NV_PRINTK(err, cli, "jmp_space: %d\n", ret);
789 goto out;
790 }
791
792 for (i = 0; i < req->nr_push; i++) {
793 struct nouveau_bo *nvbo = (void *)(unsigned long)
794 bo[push[i].bo_index].user_priv;
795 uint32_t cmd;
796
797 cmd = chan->push.vma.offset + ((chan->dma.cur + 2) << 2);
798 cmd |= 0x20000000;
799 if (unlikely(cmd != req->suffix0)) {
800 if (!nvbo->kmap.virtual) {
801 ret = ttm_bo_kmap(&nvbo->bo, 0,
802 nvbo->bo.mem.
803 num_pages,
804 &nvbo->kmap);
805 if (ret) {
806 WIND_RING(chan);
807 goto out;
808 }
809 nvbo->validate_mapped = true;
810 }
811
812 nouveau_bo_wr32(nvbo, (push[i].offset +
813 push[i].length - 8) / 4, cmd);
814 }
815
816 OUT_RING(chan, 0x20000000 |
817 (nvbo->bo.offset + push[i].offset));
818 OUT_RING(chan, 0);
819 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
820 OUT_RING(chan, 0);
821 }
822 }
823
824 ret = nouveau_fence_new(chan, false, &fence);
825 if (ret) {
826 NV_PRINTK(err, cli, "error fencing pushbuf: %d\n", ret);
827 WIND_RING(chan);
828 goto out;
829 }
830
831out:
832 validate_fini(&op, fence, bo);
833 nouveau_fence_unref(&fence);
834
835out_prevalid:
836 u_free(bo);
837 u_free(push);
838
839out_next:
840 if (chan->dma.ib_max) {
841 req->suffix0 = 0x00000000;
842 req->suffix1 = 0x00000000;
843 } else
844 if (drm->device.info.chipset >= 0x25) {
845 req->suffix0 = 0x00020000;
846 req->suffix1 = 0x00000000;
847 } else {
848 req->suffix0 = 0x20000000 |
849 (chan->push.vma.offset + ((chan->dma.cur + 2) << 2));
850 req->suffix1 = 0x00000000;
851 }
852
853 return nouveau_abi16_put(abi16, ret);
854}
855
856int
857nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
858 struct drm_file *file_priv)
859{
860 struct drm_nouveau_gem_cpu_prep *req = data;
861 struct drm_gem_object *gem;
862 struct nouveau_bo *nvbo;
863 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
864 bool write = !!(req->flags & NOUVEAU_GEM_CPU_PREP_WRITE);
865 int ret;
866
867 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
868 if (!gem)
869 return -ENOENT;
870 nvbo = nouveau_gem_object(gem);
871
872 if (no_wait)
873 ret = reservation_object_test_signaled_rcu(nvbo->bo.resv, write) ? 0 : -EBUSY;
874 else {
875 long lret;
876
877 lret = reservation_object_wait_timeout_rcu(nvbo->bo.resv, write, true, 30 * HZ);
878 if (!lret)
879 ret = -EBUSY;
880 else if (lret > 0)
881 ret = 0;
882 else
883 ret = lret;
884 }
885 nouveau_bo_sync_for_cpu(nvbo);
886 drm_gem_object_unreference_unlocked(gem);
887
888 return ret;
889}
890
891int
892nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
893 struct drm_file *file_priv)
894{
895 struct drm_nouveau_gem_cpu_fini *req = data;
896 struct drm_gem_object *gem;
897 struct nouveau_bo *nvbo;
898
899 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
900 if (!gem)
901 return -ENOENT;
902 nvbo = nouveau_gem_object(gem);
903
904 nouveau_bo_sync_for_device(nvbo);
905 drm_gem_object_unreference_unlocked(gem);
906 return 0;
907}
908
909int
910nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
911 struct drm_file *file_priv)
912{
913 struct drm_nouveau_gem_info *req = data;
914 struct drm_gem_object *gem;
915 int ret;
916
917 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
918 if (!gem)
919 return -ENOENT;
920
921 ret = nouveau_gem_info(file_priv, gem, req);
922 drm_gem_object_unreference_unlocked(gem);
923 return ret;
924}
925
1/*
2 * Copyright (C) 2008 Ben Skeggs.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 */
26
27#include "nouveau_drv.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#include "nouveau_mem.h"
35#include "nouveau_vmm.h"
36
37#include <nvif/class.h>
38
39void
40nouveau_gem_object_del(struct drm_gem_object *gem)
41{
42 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
43 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
44 struct ttm_buffer_object *bo = &nvbo->bo;
45 struct device *dev = drm->dev->dev;
46 int ret;
47
48 ret = pm_runtime_get_sync(dev);
49 if (WARN_ON(ret < 0 && ret != -EACCES))
50 return;
51
52 if (gem->import_attach)
53 drm_prime_gem_destroy(gem, nvbo->bo.sg);
54
55 drm_gem_object_release(gem);
56
57 /* reset filp so nouveau_bo_del_ttm() can test for it */
58 gem->filp = NULL;
59 ttm_bo_unref(&bo);
60
61 pm_runtime_mark_last_busy(dev);
62 pm_runtime_put_autosuspend(dev);
63}
64
65int
66nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv)
67{
68 struct nouveau_cli *cli = nouveau_cli(file_priv);
69 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
70 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
71 struct device *dev = drm->dev->dev;
72 struct nouveau_vma *vma;
73 int ret;
74
75 if (cli->vmm.vmm.object.oclass < NVIF_CLASS_VMM_NV50)
76 return 0;
77
78 ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
79 if (ret)
80 return ret;
81
82 ret = pm_runtime_get_sync(dev);
83 if (ret < 0 && ret != -EACCES)
84 goto out;
85
86 ret = nouveau_vma_new(nvbo, &cli->vmm, &vma);
87 pm_runtime_mark_last_busy(dev);
88 pm_runtime_put_autosuspend(dev);
89out:
90 ttm_bo_unreserve(&nvbo->bo);
91 return ret;
92}
93
94struct nouveau_gem_object_unmap {
95 struct nouveau_cli_work work;
96 struct nouveau_vma *vma;
97};
98
99static void
100nouveau_gem_object_delete(struct nouveau_vma *vma)
101{
102 nouveau_vma_del(&vma);
103}
104
105static void
106nouveau_gem_object_delete_work(struct nouveau_cli_work *w)
107{
108 struct nouveau_gem_object_unmap *work =
109 container_of(w, typeof(*work), work);
110 nouveau_gem_object_delete(work->vma);
111 kfree(work);
112}
113
114static void
115nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nouveau_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 nouveau_gem_object_unmap *work;
121 struct dma_fence *fence = NULL;
122
123 fobj = reservation_object_get_list(resv);
124
125 list_del_init(&vma->head);
126
127 if (fobj && fobj->shared_count > 1)
128 ttm_bo_wait(&nvbo->bo, false, false);
129 else if (fobj && fobj->shared_count == 1)
130 fence = rcu_dereference_protected(fobj->shared[0],
131 reservation_object_held(resv));
132 else
133 fence = reservation_object_get_excl(nvbo->bo.resv);
134
135 if (!fence || !mapped) {
136 nouveau_gem_object_delete(vma);
137 return;
138 }
139
140 if (!(work = kmalloc(sizeof(*work), GFP_KERNEL))) {
141 WARN_ON(dma_fence_wait_timeout(fence, false, 2 * HZ) <= 0);
142 nouveau_gem_object_delete(vma);
143 return;
144 }
145
146 work->work.func = nouveau_gem_object_delete_work;
147 work->vma = vma;
148 nouveau_cli_work_queue(vma->vmm->cli, fence, &work->work);
149}
150
151void
152nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv)
153{
154 struct nouveau_cli *cli = nouveau_cli(file_priv);
155 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
156 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
157 struct device *dev = drm->dev->dev;
158 struct nouveau_vma *vma;
159 int ret;
160
161 if (cli->vmm.vmm.object.oclass < NVIF_CLASS_VMM_NV50)
162 return;
163
164 ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
165 if (ret)
166 return;
167
168 vma = nouveau_vma_find(nvbo, &cli->vmm);
169 if (vma) {
170 if (--vma->refs == 0) {
171 ret = pm_runtime_get_sync(dev);
172 if (!WARN_ON(ret < 0 && ret != -EACCES)) {
173 nouveau_gem_object_unmap(nvbo, vma);
174 pm_runtime_mark_last_busy(dev);
175 pm_runtime_put_autosuspend(dev);
176 }
177 }
178 }
179 ttm_bo_unreserve(&nvbo->bo);
180}
181
182int
183nouveau_gem_new(struct nouveau_cli *cli, u64 size, int align, uint32_t domain,
184 uint32_t tile_mode, uint32_t tile_flags,
185 struct nouveau_bo **pnvbo)
186{
187 struct nouveau_drm *drm = cli->drm;
188 struct nouveau_bo *nvbo;
189 u32 flags = 0;
190 int ret;
191
192 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
193 flags |= TTM_PL_FLAG_VRAM;
194 if (domain & NOUVEAU_GEM_DOMAIN_GART)
195 flags |= TTM_PL_FLAG_TT;
196 if (!flags || domain & NOUVEAU_GEM_DOMAIN_CPU)
197 flags |= TTM_PL_FLAG_SYSTEM;
198
199 if (domain & NOUVEAU_GEM_DOMAIN_COHERENT)
200 flags |= TTM_PL_FLAG_UNCACHED;
201
202 ret = nouveau_bo_new(cli, size, align, flags, tile_mode,
203 tile_flags, NULL, NULL, pnvbo);
204 if (ret)
205 return ret;
206 nvbo = *pnvbo;
207
208 /* we restrict allowed domains on nv50+ to only the types
209 * that were requested at creation time. not possibly on
210 * earlier chips without busting the ABI.
211 */
212 nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM |
213 NOUVEAU_GEM_DOMAIN_GART;
214 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)
215 nvbo->valid_domains &= domain;
216
217 /* Initialize the embedded gem-object. We return a single gem-reference
218 * to the caller, instead of a normal nouveau_bo ttm reference. */
219 ret = drm_gem_object_init(drm->dev, &nvbo->gem, nvbo->bo.mem.size);
220 if (ret) {
221 nouveau_bo_ref(NULL, pnvbo);
222 return -ENOMEM;
223 }
224
225 nvbo->bo.persistent_swap_storage = nvbo->gem.filp;
226 return 0;
227}
228
229static int
230nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
231 struct drm_nouveau_gem_info *rep)
232{
233 struct nouveau_cli *cli = nouveau_cli(file_priv);
234 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
235 struct nouveau_vma *vma;
236
237 if (is_power_of_2(nvbo->valid_domains))
238 rep->domain = nvbo->valid_domains;
239 else if (nvbo->bo.mem.mem_type == TTM_PL_TT)
240 rep->domain = NOUVEAU_GEM_DOMAIN_GART;
241 else
242 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
243 rep->offset = nvbo->bo.offset;
244 if (cli->vmm.vmm.object.oclass >= NVIF_CLASS_VMM_NV50) {
245 vma = nouveau_vma_find(nvbo, &cli->vmm);
246 if (!vma)
247 return -EINVAL;
248
249 rep->offset = vma->addr;
250 }
251
252 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
253 rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.vma_node);
254 rep->tile_mode = nvbo->mode;
255 rep->tile_flags = nvbo->contig ? 0 : NOUVEAU_GEM_TILE_NONCONTIG;
256 if (cli->device.info.family >= NV_DEVICE_INFO_V0_FERMI)
257 rep->tile_flags |= nvbo->kind << 8;
258 else
259 if (cli->device.info.family >= NV_DEVICE_INFO_V0_TESLA)
260 rep->tile_flags |= nvbo->kind << 8 | nvbo->comp << 16;
261 else
262 rep->tile_flags |= nvbo->zeta;
263 return 0;
264}
265
266int
267nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
268 struct drm_file *file_priv)
269{
270 struct nouveau_cli *cli = nouveau_cli(file_priv);
271 struct drm_nouveau_gem_new *req = data;
272 struct nouveau_bo *nvbo = NULL;
273 int ret = 0;
274
275 ret = nouveau_gem_new(cli, req->info.size, req->align,
276 req->info.domain, req->info.tile_mode,
277 req->info.tile_flags, &nvbo);
278 if (ret)
279 return ret;
280
281 ret = drm_gem_handle_create(file_priv, &nvbo->gem, &req->info.handle);
282 if (ret == 0) {
283 ret = nouveau_gem_info(file_priv, &nvbo->gem, &req->info);
284 if (ret)
285 drm_gem_handle_delete(file_priv, req->info.handle);
286 }
287
288 /* drop reference from allocate - handle holds it now */
289 drm_gem_object_unreference_unlocked(&nvbo->gem);
290 return ret;
291}
292
293static int
294nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
295 uint32_t write_domains, uint32_t valid_domains)
296{
297 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
298 struct ttm_buffer_object *bo = &nvbo->bo;
299 uint32_t domains = valid_domains & nvbo->valid_domains &
300 (write_domains ? write_domains : read_domains);
301 uint32_t pref_flags = 0, valid_flags = 0;
302
303 if (!domains)
304 return -EINVAL;
305
306 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
307 valid_flags |= TTM_PL_FLAG_VRAM;
308
309 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART)
310 valid_flags |= TTM_PL_FLAG_TT;
311
312 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
313 bo->mem.mem_type == TTM_PL_VRAM)
314 pref_flags |= TTM_PL_FLAG_VRAM;
315
316 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
317 bo->mem.mem_type == TTM_PL_TT)
318 pref_flags |= TTM_PL_FLAG_TT;
319
320 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
321 pref_flags |= TTM_PL_FLAG_VRAM;
322
323 else
324 pref_flags |= TTM_PL_FLAG_TT;
325
326 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags);
327
328 return 0;
329}
330
331struct validate_op {
332 struct list_head list;
333 struct ww_acquire_ctx ticket;
334};
335
336static void
337validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence,
338 struct drm_nouveau_gem_pushbuf_bo *pbbo)
339{
340 struct nouveau_bo *nvbo;
341 struct drm_nouveau_gem_pushbuf_bo *b;
342
343 while (!list_empty(&op->list)) {
344 nvbo = list_entry(op->list.next, struct nouveau_bo, entry);
345 b = &pbbo[nvbo->pbbo_index];
346
347 if (likely(fence))
348 nouveau_bo_fence(nvbo, fence, !!b->write_domains);
349
350 if (unlikely(nvbo->validate_mapped)) {
351 ttm_bo_kunmap(&nvbo->kmap);
352 nvbo->validate_mapped = false;
353 }
354
355 list_del(&nvbo->entry);
356 nvbo->reserved_by = NULL;
357 ttm_bo_unreserve(&nvbo->bo);
358 drm_gem_object_unreference_unlocked(&nvbo->gem);
359 }
360}
361
362static void
363validate_fini(struct validate_op *op, struct nouveau_fence *fence,
364 struct drm_nouveau_gem_pushbuf_bo *pbbo)
365{
366 validate_fini_no_ticket(op, fence, pbbo);
367 ww_acquire_fini(&op->ticket);
368}
369
370static int
371validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
372 struct drm_nouveau_gem_pushbuf_bo *pbbo,
373 int nr_buffers, struct validate_op *op)
374{
375 struct nouveau_cli *cli = nouveau_cli(file_priv);
376 int trycnt = 0;
377 int ret = -EINVAL, i;
378 struct nouveau_bo *res_bo = NULL;
379 LIST_HEAD(gart_list);
380 LIST_HEAD(vram_list);
381 LIST_HEAD(both_list);
382
383 ww_acquire_init(&op->ticket, &reservation_ww_class);
384retry:
385 if (++trycnt > 100000) {
386 NV_PRINTK(err, cli, "%s failed and gave up.\n", __func__);
387 return -EINVAL;
388 }
389
390 for (i = 0; i < nr_buffers; i++) {
391 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
392 struct drm_gem_object *gem;
393 struct nouveau_bo *nvbo;
394
395 gem = drm_gem_object_lookup(file_priv, b->handle);
396 if (!gem) {
397 NV_PRINTK(err, cli, "Unknown handle 0x%08x\n", b->handle);
398 ret = -ENOENT;
399 break;
400 }
401 nvbo = nouveau_gem_object(gem);
402 if (nvbo == res_bo) {
403 res_bo = NULL;
404 drm_gem_object_unreference_unlocked(gem);
405 continue;
406 }
407
408 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
409 NV_PRINTK(err, cli, "multiple instances of buffer %d on "
410 "validation list\n", b->handle);
411 drm_gem_object_unreference_unlocked(gem);
412 ret = -EINVAL;
413 break;
414 }
415
416 ret = ttm_bo_reserve(&nvbo->bo, true, false, &op->ticket);
417 if (ret) {
418 list_splice_tail_init(&vram_list, &op->list);
419 list_splice_tail_init(&gart_list, &op->list);
420 list_splice_tail_init(&both_list, &op->list);
421 validate_fini_no_ticket(op, NULL, NULL);
422 if (unlikely(ret == -EDEADLK)) {
423 ret = ttm_bo_reserve_slowpath(&nvbo->bo, true,
424 &op->ticket);
425 if (!ret)
426 res_bo = nvbo;
427 }
428 if (unlikely(ret)) {
429 if (ret != -ERESTARTSYS)
430 NV_PRINTK(err, cli, "fail reserve\n");
431 break;
432 }
433 }
434
435 b->user_priv = (uint64_t)(unsigned long)nvbo;
436 nvbo->reserved_by = file_priv;
437 nvbo->pbbo_index = i;
438 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
439 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
440 list_add_tail(&nvbo->entry, &both_list);
441 else
442 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
443 list_add_tail(&nvbo->entry, &vram_list);
444 else
445 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
446 list_add_tail(&nvbo->entry, &gart_list);
447 else {
448 NV_PRINTK(err, cli, "invalid valid domains: 0x%08x\n",
449 b->valid_domains);
450 list_add_tail(&nvbo->entry, &both_list);
451 ret = -EINVAL;
452 break;
453 }
454 if (nvbo == res_bo)
455 goto retry;
456 }
457
458 ww_acquire_done(&op->ticket);
459 list_splice_tail(&vram_list, &op->list);
460 list_splice_tail(&gart_list, &op->list);
461 list_splice_tail(&both_list, &op->list);
462 if (ret)
463 validate_fini(op, NULL, NULL);
464 return ret;
465
466}
467
468static int
469validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli,
470 struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo,
471 uint64_t user_pbbo_ptr)
472{
473 struct nouveau_drm *drm = chan->drm;
474 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
475 (void __force __user *)(uintptr_t)user_pbbo_ptr;
476 struct nouveau_bo *nvbo;
477 int ret, relocs = 0;
478
479 list_for_each_entry(nvbo, list, entry) {
480 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
481
482 ret = nouveau_gem_set_domain(&nvbo->gem, b->read_domains,
483 b->write_domains,
484 b->valid_domains);
485 if (unlikely(ret)) {
486 NV_PRINTK(err, cli, "fail set_domain\n");
487 return ret;
488 }
489
490 ret = nouveau_bo_validate(nvbo, true, false);
491 if (unlikely(ret)) {
492 if (ret != -ERESTARTSYS)
493 NV_PRINTK(err, cli, "fail ttm_validate\n");
494 return ret;
495 }
496
497 ret = nouveau_fence_sync(nvbo, chan, !!b->write_domains, true);
498 if (unlikely(ret)) {
499 if (ret != -ERESTARTSYS)
500 NV_PRINTK(err, cli, "fail post-validate sync\n");
501 return ret;
502 }
503
504 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
505 if (nvbo->bo.offset == b->presumed.offset &&
506 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
507 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
508 (nvbo->bo.mem.mem_type == TTM_PL_TT &&
509 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
510 continue;
511
512 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
513 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
514 else
515 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
516 b->presumed.offset = nvbo->bo.offset;
517 b->presumed.valid = 0;
518 relocs++;
519
520 if (copy_to_user(&upbbo[nvbo->pbbo_index].presumed,
521 &b->presumed, sizeof(b->presumed)))
522 return -EFAULT;
523 }
524 }
525
526 return relocs;
527}
528
529static int
530nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
531 struct drm_file *file_priv,
532 struct drm_nouveau_gem_pushbuf_bo *pbbo,
533 uint64_t user_buffers, int nr_buffers,
534 struct validate_op *op, int *apply_relocs)
535{
536 struct nouveau_cli *cli = nouveau_cli(file_priv);
537 int ret;
538
539 INIT_LIST_HEAD(&op->list);
540
541 if (nr_buffers == 0)
542 return 0;
543
544 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
545 if (unlikely(ret)) {
546 if (ret != -ERESTARTSYS)
547 NV_PRINTK(err, cli, "validate_init\n");
548 return ret;
549 }
550
551 ret = validate_list(chan, cli, &op->list, pbbo, user_buffers);
552 if (unlikely(ret < 0)) {
553 if (ret != -ERESTARTSYS)
554 NV_PRINTK(err, cli, "validating bo list\n");
555 validate_fini(op, NULL, NULL);
556 return ret;
557 }
558 *apply_relocs = ret;
559 return 0;
560}
561
562static inline void
563u_free(void *addr)
564{
565 kvfree(addr);
566}
567
568static inline void *
569u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
570{
571 void *mem;
572 void __user *userptr = (void __force __user *)(uintptr_t)user;
573
574 size *= nmemb;
575
576 mem = kvmalloc(size, GFP_KERNEL);
577 if (!mem)
578 return ERR_PTR(-ENOMEM);
579
580 if (copy_from_user(mem, userptr, size)) {
581 u_free(mem);
582 return ERR_PTR(-EFAULT);
583 }
584
585 return mem;
586}
587
588static int
589nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
590 struct drm_nouveau_gem_pushbuf *req,
591 struct drm_nouveau_gem_pushbuf_bo *bo)
592{
593 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
594 int ret = 0;
595 unsigned i;
596
597 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
598 if (IS_ERR(reloc))
599 return PTR_ERR(reloc);
600
601 for (i = 0; i < req->nr_relocs; i++) {
602 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
603 struct drm_nouveau_gem_pushbuf_bo *b;
604 struct nouveau_bo *nvbo;
605 uint32_t data;
606
607 if (unlikely(r->bo_index > req->nr_buffers)) {
608 NV_PRINTK(err, cli, "reloc bo index invalid\n");
609 ret = -EINVAL;
610 break;
611 }
612
613 b = &bo[r->bo_index];
614 if (b->presumed.valid)
615 continue;
616
617 if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
618 NV_PRINTK(err, cli, "reloc container bo index invalid\n");
619 ret = -EINVAL;
620 break;
621 }
622 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
623
624 if (unlikely(r->reloc_bo_offset + 4 >
625 nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
626 NV_PRINTK(err, cli, "reloc outside of bo\n");
627 ret = -EINVAL;
628 break;
629 }
630
631 if (!nvbo->kmap.virtual) {
632 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
633 &nvbo->kmap);
634 if (ret) {
635 NV_PRINTK(err, cli, "failed kmap for reloc\n");
636 break;
637 }
638 nvbo->validate_mapped = true;
639 }
640
641 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
642 data = b->presumed.offset + r->data;
643 else
644 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
645 data = (b->presumed.offset + r->data) >> 32;
646 else
647 data = r->data;
648
649 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
650 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
651 data |= r->tor;
652 else
653 data |= r->vor;
654 }
655
656 ret = ttm_bo_wait(&nvbo->bo, false, false);
657 if (ret) {
658 NV_PRINTK(err, cli, "reloc wait_idle failed: %d\n", ret);
659 break;
660 }
661
662 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
663 }
664
665 u_free(reloc);
666 return ret;
667}
668
669int
670nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
671 struct drm_file *file_priv)
672{
673 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
674 struct nouveau_cli *cli = nouveau_cli(file_priv);
675 struct nouveau_abi16_chan *temp;
676 struct nouveau_drm *drm = nouveau_drm(dev);
677 struct drm_nouveau_gem_pushbuf *req = data;
678 struct drm_nouveau_gem_pushbuf_push *push;
679 struct drm_nouveau_gem_pushbuf_bo *bo;
680 struct nouveau_channel *chan = NULL;
681 struct validate_op op;
682 struct nouveau_fence *fence = NULL;
683 int i, j, ret = 0, do_reloc = 0;
684
685 if (unlikely(!abi16))
686 return -ENOMEM;
687
688 list_for_each_entry(temp, &abi16->channels, head) {
689 if (temp->chan->chid == req->channel) {
690 chan = temp->chan;
691 break;
692 }
693 }
694
695 if (!chan)
696 return nouveau_abi16_put(abi16, -ENOENT);
697
698 req->vram_available = drm->gem.vram_available;
699 req->gart_available = drm->gem.gart_available;
700 if (unlikely(req->nr_push == 0))
701 goto out_next;
702
703 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
704 NV_PRINTK(err, cli, "pushbuf push count exceeds limit: %d max %d\n",
705 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
706 return nouveau_abi16_put(abi16, -EINVAL);
707 }
708
709 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
710 NV_PRINTK(err, cli, "pushbuf bo count exceeds limit: %d max %d\n",
711 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
712 return nouveau_abi16_put(abi16, -EINVAL);
713 }
714
715 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
716 NV_PRINTK(err, cli, "pushbuf reloc count exceeds limit: %d max %d\n",
717 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
718 return nouveau_abi16_put(abi16, -EINVAL);
719 }
720
721 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
722 if (IS_ERR(push))
723 return nouveau_abi16_put(abi16, PTR_ERR(push));
724
725 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
726 if (IS_ERR(bo)) {
727 u_free(push);
728 return nouveau_abi16_put(abi16, PTR_ERR(bo));
729 }
730
731 /* Ensure all push buffers are on validate list */
732 for (i = 0; i < req->nr_push; i++) {
733 if (push[i].bo_index >= req->nr_buffers) {
734 NV_PRINTK(err, cli, "push %d buffer not in list\n", i);
735 ret = -EINVAL;
736 goto out_prevalid;
737 }
738 }
739
740 /* Validate buffer list */
741 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
742 req->nr_buffers, &op, &do_reloc);
743 if (ret) {
744 if (ret != -ERESTARTSYS)
745 NV_PRINTK(err, cli, "validate: %d\n", ret);
746 goto out_prevalid;
747 }
748
749 /* Apply any relocations that are required */
750 if (do_reloc) {
751 ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo);
752 if (ret) {
753 NV_PRINTK(err, cli, "reloc apply: %d\n", ret);
754 goto out;
755 }
756 }
757
758 if (chan->dma.ib_max) {
759 ret = nouveau_dma_wait(chan, req->nr_push + 1, 16);
760 if (ret) {
761 NV_PRINTK(err, cli, "nv50cal_space: %d\n", ret);
762 goto out;
763 }
764
765 for (i = 0; i < req->nr_push; i++) {
766 struct nouveau_bo *nvbo = (void *)(unsigned long)
767 bo[push[i].bo_index].user_priv;
768
769 nv50_dma_push(chan, nvbo, push[i].offset,
770 push[i].length);
771 }
772 } else
773 if (drm->client.device.info.chipset >= 0x25) {
774 ret = RING_SPACE(chan, req->nr_push * 2);
775 if (ret) {
776 NV_PRINTK(err, cli, "cal_space: %d\n", ret);
777 goto out;
778 }
779
780 for (i = 0; i < req->nr_push; i++) {
781 struct nouveau_bo *nvbo = (void *)(unsigned long)
782 bo[push[i].bo_index].user_priv;
783
784 OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2);
785 OUT_RING(chan, 0);
786 }
787 } else {
788 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
789 if (ret) {
790 NV_PRINTK(err, cli, "jmp_space: %d\n", ret);
791 goto out;
792 }
793
794 for (i = 0; i < req->nr_push; i++) {
795 struct nouveau_bo *nvbo = (void *)(unsigned long)
796 bo[push[i].bo_index].user_priv;
797 uint32_t cmd;
798
799 cmd = chan->push.addr + ((chan->dma.cur + 2) << 2);
800 cmd |= 0x20000000;
801 if (unlikely(cmd != req->suffix0)) {
802 if (!nvbo->kmap.virtual) {
803 ret = ttm_bo_kmap(&nvbo->bo, 0,
804 nvbo->bo.mem.
805 num_pages,
806 &nvbo->kmap);
807 if (ret) {
808 WIND_RING(chan);
809 goto out;
810 }
811 nvbo->validate_mapped = true;
812 }
813
814 nouveau_bo_wr32(nvbo, (push[i].offset +
815 push[i].length - 8) / 4, cmd);
816 }
817
818 OUT_RING(chan, 0x20000000 |
819 (nvbo->bo.offset + push[i].offset));
820 OUT_RING(chan, 0);
821 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
822 OUT_RING(chan, 0);
823 }
824 }
825
826 ret = nouveau_fence_new(chan, false, &fence);
827 if (ret) {
828 NV_PRINTK(err, cli, "error fencing pushbuf: %d\n", ret);
829 WIND_RING(chan);
830 goto out;
831 }
832
833out:
834 validate_fini(&op, fence, bo);
835 nouveau_fence_unref(&fence);
836
837out_prevalid:
838 u_free(bo);
839 u_free(push);
840
841out_next:
842 if (chan->dma.ib_max) {
843 req->suffix0 = 0x00000000;
844 req->suffix1 = 0x00000000;
845 } else
846 if (drm->client.device.info.chipset >= 0x25) {
847 req->suffix0 = 0x00020000;
848 req->suffix1 = 0x00000000;
849 } else {
850 req->suffix0 = 0x20000000 |
851 (chan->push.addr + ((chan->dma.cur + 2) << 2));
852 req->suffix1 = 0x00000000;
853 }
854
855 return nouveau_abi16_put(abi16, ret);
856}
857
858int
859nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
860 struct drm_file *file_priv)
861{
862 struct drm_nouveau_gem_cpu_prep *req = data;
863 struct drm_gem_object *gem;
864 struct nouveau_bo *nvbo;
865 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
866 bool write = !!(req->flags & NOUVEAU_GEM_CPU_PREP_WRITE);
867 long lret;
868 int ret;
869
870 gem = drm_gem_object_lookup(file_priv, req->handle);
871 if (!gem)
872 return -ENOENT;
873 nvbo = nouveau_gem_object(gem);
874
875 lret = reservation_object_wait_timeout_rcu(nvbo->bo.resv, write, true,
876 no_wait ? 0 : 30 * HZ);
877 if (!lret)
878 ret = -EBUSY;
879 else if (lret > 0)
880 ret = 0;
881 else
882 ret = lret;
883
884 nouveau_bo_sync_for_cpu(nvbo);
885 drm_gem_object_unreference_unlocked(gem);
886
887 return ret;
888}
889
890int
891nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
892 struct drm_file *file_priv)
893{
894 struct drm_nouveau_gem_cpu_fini *req = data;
895 struct drm_gem_object *gem;
896 struct nouveau_bo *nvbo;
897
898 gem = drm_gem_object_lookup(file_priv, req->handle);
899 if (!gem)
900 return -ENOENT;
901 nvbo = nouveau_gem_object(gem);
902
903 nouveau_bo_sync_for_device(nvbo);
904 drm_gem_object_unreference_unlocked(gem);
905 return 0;
906}
907
908int
909nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
910 struct drm_file *file_priv)
911{
912 struct drm_nouveau_gem_info *req = data;
913 struct drm_gem_object *gem;
914 int ret;
915
916 gem = drm_gem_object_lookup(file_priv, req->handle);
917 if (!gem)
918 return -ENOENT;
919
920 ret = nouveau_gem_info(file_priv, gem, req);
921 drm_gem_object_unreference_unlocked(gem);
922 return ret;
923}
924