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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 device *dev = drm->dev->dev;
45 int ret;
46
47 ret = pm_runtime_get_sync(dev);
48 if (WARN_ON(ret < 0 && ret != -EACCES))
49 return;
50
51 if (gem->import_attach)
52 drm_prime_gem_destroy(gem, nvbo->bo.sg);
53
54 ttm_bo_put(&nvbo->bo);
55
56 pm_runtime_mark_last_busy(dev);
57 pm_runtime_put_autosuspend(dev);
58}
59
60int
61nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv)
62{
63 struct nouveau_cli *cli = nouveau_cli(file_priv);
64 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
65 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
66 struct device *dev = drm->dev->dev;
67 struct nouveau_vmm *vmm = cli->svm.cli ? &cli->svm : &cli->vmm;
68 struct nouveau_vma *vma;
69 int ret;
70
71 if (vmm->vmm.object.oclass < NVIF_CLASS_VMM_NV50)
72 return 0;
73
74 ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
75 if (ret)
76 return ret;
77
78 ret = pm_runtime_get_sync(dev);
79 if (ret < 0 && ret != -EACCES)
80 goto out;
81
82 ret = nouveau_vma_new(nvbo, vmm, &vma);
83 pm_runtime_mark_last_busy(dev);
84 pm_runtime_put_autosuspend(dev);
85out:
86 ttm_bo_unreserve(&nvbo->bo);
87 return ret;
88}
89
90struct nouveau_gem_object_unmap {
91 struct nouveau_cli_work work;
92 struct nouveau_vma *vma;
93};
94
95static void
96nouveau_gem_object_delete(struct nouveau_vma *vma)
97{
98 nouveau_fence_unref(&vma->fence);
99 nouveau_vma_del(&vma);
100}
101
102static void
103nouveau_gem_object_delete_work(struct nouveau_cli_work *w)
104{
105 struct nouveau_gem_object_unmap *work =
106 container_of(w, typeof(*work), work);
107 nouveau_gem_object_delete(work->vma);
108 kfree(work);
109}
110
111static void
112nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nouveau_vma *vma)
113{
114 struct dma_fence *fence = vma->fence ? &vma->fence->base : NULL;
115 struct nouveau_gem_object_unmap *work;
116
117 list_del_init(&vma->head);
118
119 if (!fence) {
120 nouveau_gem_object_delete(vma);
121 return;
122 }
123
124 if (!(work = kmalloc(sizeof(*work), GFP_KERNEL))) {
125 WARN_ON(dma_fence_wait_timeout(fence, false, 2 * HZ) <= 0);
126 nouveau_gem_object_delete(vma);
127 return;
128 }
129
130 work->work.func = nouveau_gem_object_delete_work;
131 work->vma = vma;
132 nouveau_cli_work_queue(vma->vmm->cli, fence, &work->work);
133}
134
135void
136nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv)
137{
138 struct nouveau_cli *cli = nouveau_cli(file_priv);
139 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
140 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
141 struct device *dev = drm->dev->dev;
142 struct nouveau_vmm *vmm = cli->svm.cli ? &cli->svm : & cli->vmm;
143 struct nouveau_vma *vma;
144 int ret;
145
146 if (vmm->vmm.object.oclass < NVIF_CLASS_VMM_NV50)
147 return;
148
149 ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
150 if (ret)
151 return;
152
153 vma = nouveau_vma_find(nvbo, vmm);
154 if (vma) {
155 if (--vma->refs == 0) {
156 ret = pm_runtime_get_sync(dev);
157 if (!WARN_ON(ret < 0 && ret != -EACCES)) {
158 nouveau_gem_object_unmap(nvbo, vma);
159 pm_runtime_mark_last_busy(dev);
160 pm_runtime_put_autosuspend(dev);
161 }
162 }
163 }
164 ttm_bo_unreserve(&nvbo->bo);
165}
166
167int
168nouveau_gem_new(struct nouveau_cli *cli, u64 size, int align, uint32_t domain,
169 uint32_t tile_mode, uint32_t tile_flags,
170 struct nouveau_bo **pnvbo)
171{
172 struct nouveau_drm *drm = cli->drm;
173 struct nouveau_bo *nvbo;
174 u32 flags = 0;
175 int ret;
176
177 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
178 flags |= TTM_PL_FLAG_VRAM;
179 if (domain & NOUVEAU_GEM_DOMAIN_GART)
180 flags |= TTM_PL_FLAG_TT;
181 if (!flags || domain & NOUVEAU_GEM_DOMAIN_CPU)
182 flags |= TTM_PL_FLAG_SYSTEM;
183
184 if (domain & NOUVEAU_GEM_DOMAIN_COHERENT)
185 flags |= TTM_PL_FLAG_UNCACHED;
186
187 nvbo = nouveau_bo_alloc(cli, &size, &align, flags, tile_mode,
188 tile_flags);
189 if (IS_ERR(nvbo))
190 return PTR_ERR(nvbo);
191
192 /* Initialize the embedded gem-object. We return a single gem-reference
193 * to the caller, instead of a normal nouveau_bo ttm reference. */
194 ret = drm_gem_object_init(drm->dev, &nvbo->bo.base, size);
195 if (ret) {
196 nouveau_bo_ref(NULL, &nvbo);
197 return ret;
198 }
199
200 ret = nouveau_bo_init(nvbo, size, align, flags, NULL, NULL);
201 if (ret) {
202 nouveau_bo_ref(NULL, &nvbo);
203 return ret;
204 }
205
206 /* we restrict allowed domains on nv50+ to only the types
207 * that were requested at creation time. not possibly on
208 * earlier chips without busting the ABI.
209 */
210 nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM |
211 NOUVEAU_GEM_DOMAIN_GART;
212 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)
213 nvbo->valid_domains &= domain;
214
215 nvbo->bo.persistent_swap_storage = nvbo->bo.base.filp;
216 *pnvbo = nvbo;
217 return 0;
218}
219
220static int
221nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
222 struct drm_nouveau_gem_info *rep)
223{
224 struct nouveau_cli *cli = nouveau_cli(file_priv);
225 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
226 struct nouveau_vmm *vmm = cli->svm.cli ? &cli->svm : &cli->vmm;
227 struct nouveau_vma *vma;
228
229 if (is_power_of_2(nvbo->valid_domains))
230 rep->domain = nvbo->valid_domains;
231 else if (nvbo->bo.mem.mem_type == TTM_PL_TT)
232 rep->domain = NOUVEAU_GEM_DOMAIN_GART;
233 else
234 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
235 rep->offset = nvbo->bo.offset;
236 if (vmm->vmm.object.oclass >= NVIF_CLASS_VMM_NV50) {
237 vma = nouveau_vma_find(nvbo, vmm);
238 if (!vma)
239 return -EINVAL;
240
241 rep->offset = vma->addr;
242 }
243
244 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
245 rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.base.vma_node);
246 rep->tile_mode = nvbo->mode;
247 rep->tile_flags = nvbo->contig ? 0 : NOUVEAU_GEM_TILE_NONCONTIG;
248 if (cli->device.info.family >= NV_DEVICE_INFO_V0_FERMI)
249 rep->tile_flags |= nvbo->kind << 8;
250 else
251 if (cli->device.info.family >= NV_DEVICE_INFO_V0_TESLA)
252 rep->tile_flags |= nvbo->kind << 8 | nvbo->comp << 16;
253 else
254 rep->tile_flags |= nvbo->zeta;
255 return 0;
256}
257
258int
259nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
260 struct drm_file *file_priv)
261{
262 struct nouveau_cli *cli = nouveau_cli(file_priv);
263 struct drm_nouveau_gem_new *req = data;
264 struct nouveau_bo *nvbo = NULL;
265 int ret = 0;
266
267 ret = nouveau_gem_new(cli, req->info.size, req->align,
268 req->info.domain, req->info.tile_mode,
269 req->info.tile_flags, &nvbo);
270 if (ret)
271 return ret;
272
273 ret = drm_gem_handle_create(file_priv, &nvbo->bo.base,
274 &req->info.handle);
275 if (ret == 0) {
276 ret = nouveau_gem_info(file_priv, &nvbo->bo.base, &req->info);
277 if (ret)
278 drm_gem_handle_delete(file_priv, req->info.handle);
279 }
280
281 /* drop reference from allocate - handle holds it now */
282 drm_gem_object_put_unlocked(&nvbo->bo.base);
283 return ret;
284}
285
286static int
287nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
288 uint32_t write_domains, uint32_t valid_domains)
289{
290 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
291 struct ttm_buffer_object *bo = &nvbo->bo;
292 uint32_t domains = valid_domains & nvbo->valid_domains &
293 (write_domains ? write_domains : read_domains);
294 uint32_t pref_flags = 0, valid_flags = 0;
295
296 if (!domains)
297 return -EINVAL;
298
299 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
300 valid_flags |= TTM_PL_FLAG_VRAM;
301
302 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART)
303 valid_flags |= TTM_PL_FLAG_TT;
304
305 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
306 bo->mem.mem_type == TTM_PL_VRAM)
307 pref_flags |= TTM_PL_FLAG_VRAM;
308
309 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
310 bo->mem.mem_type == TTM_PL_TT)
311 pref_flags |= TTM_PL_FLAG_TT;
312
313 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
314 pref_flags |= TTM_PL_FLAG_VRAM;
315
316 else
317 pref_flags |= TTM_PL_FLAG_TT;
318
319 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags);
320
321 return 0;
322}
323
324struct validate_op {
325 struct list_head list;
326 struct ww_acquire_ctx ticket;
327};
328
329static void
330validate_fini_no_ticket(struct validate_op *op, struct nouveau_channel *chan,
331 struct nouveau_fence *fence,
332 struct drm_nouveau_gem_pushbuf_bo *pbbo)
333{
334 struct nouveau_bo *nvbo;
335 struct drm_nouveau_gem_pushbuf_bo *b;
336
337 while (!list_empty(&op->list)) {
338 nvbo = list_entry(op->list.next, struct nouveau_bo, entry);
339 b = &pbbo[nvbo->pbbo_index];
340
341 if (likely(fence)) {
342 nouveau_bo_fence(nvbo, fence, !!b->write_domains);
343
344 if (chan->vmm->vmm.object.oclass >= NVIF_CLASS_VMM_NV50) {
345 struct nouveau_vma *vma =
346 (void *)(unsigned long)b->user_priv;
347 nouveau_fence_unref(&vma->fence);
348 dma_fence_get(&fence->base);
349 vma->fence = fence;
350 }
351 }
352
353 if (unlikely(nvbo->validate_mapped)) {
354 ttm_bo_kunmap(&nvbo->kmap);
355 nvbo->validate_mapped = false;
356 }
357
358 list_del(&nvbo->entry);
359 nvbo->reserved_by = NULL;
360 ttm_bo_unreserve(&nvbo->bo);
361 drm_gem_object_put_unlocked(&nvbo->bo.base);
362 }
363}
364
365static void
366validate_fini(struct validate_op *op, struct nouveau_channel *chan,
367 struct nouveau_fence *fence,
368 struct drm_nouveau_gem_pushbuf_bo *pbbo)
369{
370 validate_fini_no_ticket(op, chan, fence, pbbo);
371 ww_acquire_fini(&op->ticket);
372}
373
374static int
375validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
376 struct drm_nouveau_gem_pushbuf_bo *pbbo,
377 int nr_buffers, struct validate_op *op)
378{
379 struct nouveau_cli *cli = nouveau_cli(file_priv);
380 int trycnt = 0;
381 int ret = -EINVAL, i;
382 struct nouveau_bo *res_bo = NULL;
383 LIST_HEAD(gart_list);
384 LIST_HEAD(vram_list);
385 LIST_HEAD(both_list);
386
387 ww_acquire_init(&op->ticket, &reservation_ww_class);
388retry:
389 if (++trycnt > 100000) {
390 NV_PRINTK(err, cli, "%s failed and gave up.\n", __func__);
391 return -EINVAL;
392 }
393
394 for (i = 0; i < nr_buffers; i++) {
395 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
396 struct drm_gem_object *gem;
397 struct nouveau_bo *nvbo;
398
399 gem = drm_gem_object_lookup(file_priv, b->handle);
400 if (!gem) {
401 NV_PRINTK(err, cli, "Unknown handle 0x%08x\n", b->handle);
402 ret = -ENOENT;
403 break;
404 }
405 nvbo = nouveau_gem_object(gem);
406 if (nvbo == res_bo) {
407 res_bo = NULL;
408 drm_gem_object_put_unlocked(gem);
409 continue;
410 }
411
412 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
413 NV_PRINTK(err, cli, "multiple instances of buffer %d on "
414 "validation list\n", b->handle);
415 drm_gem_object_put_unlocked(gem);
416 ret = -EINVAL;
417 break;
418 }
419
420 ret = ttm_bo_reserve(&nvbo->bo, true, false, &op->ticket);
421 if (ret) {
422 list_splice_tail_init(&vram_list, &op->list);
423 list_splice_tail_init(&gart_list, &op->list);
424 list_splice_tail_init(&both_list, &op->list);
425 validate_fini_no_ticket(op, chan, NULL, NULL);
426 if (unlikely(ret == -EDEADLK)) {
427 ret = ttm_bo_reserve_slowpath(&nvbo->bo, true,
428 &op->ticket);
429 if (!ret)
430 res_bo = nvbo;
431 }
432 if (unlikely(ret)) {
433 if (ret != -ERESTARTSYS)
434 NV_PRINTK(err, cli, "fail reserve\n");
435 break;
436 }
437 }
438
439 if (chan->vmm->vmm.object.oclass >= NVIF_CLASS_VMM_NV50) {
440 struct nouveau_vmm *vmm = chan->vmm;
441 struct nouveau_vma *vma = nouveau_vma_find(nvbo, vmm);
442 if (!vma) {
443 NV_PRINTK(err, cli, "vma not found!\n");
444 ret = -EINVAL;
445 break;
446 }
447
448 b->user_priv = (uint64_t)(unsigned long)vma;
449 } else {
450 b->user_priv = (uint64_t)(unsigned long)nvbo;
451 }
452
453 nvbo->reserved_by = file_priv;
454 nvbo->pbbo_index = i;
455 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
456 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
457 list_add_tail(&nvbo->entry, &both_list);
458 else
459 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
460 list_add_tail(&nvbo->entry, &vram_list);
461 else
462 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
463 list_add_tail(&nvbo->entry, &gart_list);
464 else {
465 NV_PRINTK(err, cli, "invalid valid domains: 0x%08x\n",
466 b->valid_domains);
467 list_add_tail(&nvbo->entry, &both_list);
468 ret = -EINVAL;
469 break;
470 }
471 if (nvbo == res_bo)
472 goto retry;
473 }
474
475 ww_acquire_done(&op->ticket);
476 list_splice_tail(&vram_list, &op->list);
477 list_splice_tail(&gart_list, &op->list);
478 list_splice_tail(&both_list, &op->list);
479 if (ret)
480 validate_fini(op, chan, NULL, NULL);
481 return ret;
482
483}
484
485static int
486validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli,
487 struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo,
488 uint64_t user_pbbo_ptr)
489{
490 struct nouveau_drm *drm = chan->drm;
491 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
492 (void __force __user *)(uintptr_t)user_pbbo_ptr;
493 struct nouveau_bo *nvbo;
494 int ret, relocs = 0;
495
496 list_for_each_entry(nvbo, list, entry) {
497 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
498
499 ret = nouveau_gem_set_domain(&nvbo->bo.base, b->read_domains,
500 b->write_domains,
501 b->valid_domains);
502 if (unlikely(ret)) {
503 NV_PRINTK(err, cli, "fail set_domain\n");
504 return ret;
505 }
506
507 ret = nouveau_bo_validate(nvbo, true, false);
508 if (unlikely(ret)) {
509 if (ret != -ERESTARTSYS)
510 NV_PRINTK(err, cli, "fail ttm_validate\n");
511 return ret;
512 }
513
514 ret = nouveau_fence_sync(nvbo, chan, !!b->write_domains, true);
515 if (unlikely(ret)) {
516 if (ret != -ERESTARTSYS)
517 NV_PRINTK(err, cli, "fail post-validate sync\n");
518 return ret;
519 }
520
521 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
522 if (nvbo->bo.offset == b->presumed.offset &&
523 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
524 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
525 (nvbo->bo.mem.mem_type == TTM_PL_TT &&
526 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
527 continue;
528
529 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
530 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
531 else
532 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
533 b->presumed.offset = nvbo->bo.offset;
534 b->presumed.valid = 0;
535 relocs++;
536
537 if (copy_to_user(&upbbo[nvbo->pbbo_index].presumed,
538 &b->presumed, sizeof(b->presumed)))
539 return -EFAULT;
540 }
541 }
542
543 return relocs;
544}
545
546static int
547nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
548 struct drm_file *file_priv,
549 struct drm_nouveau_gem_pushbuf_bo *pbbo,
550 uint64_t user_buffers, int nr_buffers,
551 struct validate_op *op, int *apply_relocs)
552{
553 struct nouveau_cli *cli = nouveau_cli(file_priv);
554 int ret;
555
556 INIT_LIST_HEAD(&op->list);
557
558 if (nr_buffers == 0)
559 return 0;
560
561 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
562 if (unlikely(ret)) {
563 if (ret != -ERESTARTSYS)
564 NV_PRINTK(err, cli, "validate_init\n");
565 return ret;
566 }
567
568 ret = validate_list(chan, cli, &op->list, pbbo, user_buffers);
569 if (unlikely(ret < 0)) {
570 if (ret != -ERESTARTSYS)
571 NV_PRINTK(err, cli, "validating bo list\n");
572 validate_fini(op, chan, NULL, NULL);
573 return ret;
574 }
575 *apply_relocs = ret;
576 return 0;
577}
578
579static inline void
580u_free(void *addr)
581{
582 kvfree(addr);
583}
584
585static inline void *
586u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
587{
588 void *mem;
589 void __user *userptr = (void __force __user *)(uintptr_t)user;
590
591 size *= nmemb;
592
593 mem = kvmalloc(size, GFP_KERNEL);
594 if (!mem)
595 return ERR_PTR(-ENOMEM);
596
597 if (copy_from_user(mem, userptr, size)) {
598 u_free(mem);
599 return ERR_PTR(-EFAULT);
600 }
601
602 return mem;
603}
604
605static int
606nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
607 struct drm_nouveau_gem_pushbuf *req,
608 struct drm_nouveau_gem_pushbuf_bo *bo)
609{
610 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
611 int ret = 0;
612 unsigned i;
613
614 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
615 if (IS_ERR(reloc))
616 return PTR_ERR(reloc);
617
618 for (i = 0; i < req->nr_relocs; i++) {
619 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
620 struct drm_nouveau_gem_pushbuf_bo *b;
621 struct nouveau_bo *nvbo;
622 uint32_t data;
623
624 if (unlikely(r->bo_index >= req->nr_buffers)) {
625 NV_PRINTK(err, cli, "reloc bo index invalid\n");
626 ret = -EINVAL;
627 break;
628 }
629
630 b = &bo[r->bo_index];
631 if (b->presumed.valid)
632 continue;
633
634 if (unlikely(r->reloc_bo_index >= req->nr_buffers)) {
635 NV_PRINTK(err, cli, "reloc container bo index invalid\n");
636 ret = -EINVAL;
637 break;
638 }
639 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
640
641 if (unlikely(r->reloc_bo_offset + 4 >
642 nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
643 NV_PRINTK(err, cli, "reloc outside of bo\n");
644 ret = -EINVAL;
645 break;
646 }
647
648 if (!nvbo->kmap.virtual) {
649 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
650 &nvbo->kmap);
651 if (ret) {
652 NV_PRINTK(err, cli, "failed kmap for reloc\n");
653 break;
654 }
655 nvbo->validate_mapped = true;
656 }
657
658 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
659 data = b->presumed.offset + r->data;
660 else
661 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
662 data = (b->presumed.offset + r->data) >> 32;
663 else
664 data = r->data;
665
666 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
667 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
668 data |= r->tor;
669 else
670 data |= r->vor;
671 }
672
673 ret = ttm_bo_wait(&nvbo->bo, false, false);
674 if (ret) {
675 NV_PRINTK(err, cli, "reloc wait_idle failed: %d\n", ret);
676 break;
677 }
678
679 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
680 }
681
682 u_free(reloc);
683 return ret;
684}
685
686int
687nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
688 struct drm_file *file_priv)
689{
690 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
691 struct nouveau_cli *cli = nouveau_cli(file_priv);
692 struct nouveau_abi16_chan *temp;
693 struct nouveau_drm *drm = nouveau_drm(dev);
694 struct drm_nouveau_gem_pushbuf *req = data;
695 struct drm_nouveau_gem_pushbuf_push *push;
696 struct drm_nouveau_gem_pushbuf_bo *bo;
697 struct nouveau_channel *chan = NULL;
698 struct validate_op op;
699 struct nouveau_fence *fence = NULL;
700 int i, j, ret = 0, do_reloc = 0;
701
702 if (unlikely(!abi16))
703 return -ENOMEM;
704
705 list_for_each_entry(temp, &abi16->channels, head) {
706 if (temp->chan->chid == req->channel) {
707 chan = temp->chan;
708 break;
709 }
710 }
711
712 if (!chan)
713 return nouveau_abi16_put(abi16, -ENOENT);
714
715 req->vram_available = drm->gem.vram_available;
716 req->gart_available = drm->gem.gart_available;
717 if (unlikely(req->nr_push == 0))
718 goto out_next;
719
720 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
721 NV_PRINTK(err, cli, "pushbuf push count exceeds limit: %d max %d\n",
722 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
723 return nouveau_abi16_put(abi16, -EINVAL);
724 }
725
726 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
727 NV_PRINTK(err, cli, "pushbuf bo count exceeds limit: %d max %d\n",
728 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
729 return nouveau_abi16_put(abi16, -EINVAL);
730 }
731
732 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
733 NV_PRINTK(err, cli, "pushbuf reloc count exceeds limit: %d max %d\n",
734 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
735 return nouveau_abi16_put(abi16, -EINVAL);
736 }
737
738 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
739 if (IS_ERR(push))
740 return nouveau_abi16_put(abi16, PTR_ERR(push));
741
742 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
743 if (IS_ERR(bo)) {
744 u_free(push);
745 return nouveau_abi16_put(abi16, PTR_ERR(bo));
746 }
747
748 /* Ensure all push buffers are on validate list */
749 for (i = 0; i < req->nr_push; i++) {
750 if (push[i].bo_index >= req->nr_buffers) {
751 NV_PRINTK(err, cli, "push %d buffer not in list\n", i);
752 ret = -EINVAL;
753 goto out_prevalid;
754 }
755 }
756
757 /* Validate buffer list */
758 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
759 req->nr_buffers, &op, &do_reloc);
760 if (ret) {
761 if (ret != -ERESTARTSYS)
762 NV_PRINTK(err, cli, "validate: %d\n", ret);
763 goto out_prevalid;
764 }
765
766 /* Apply any relocations that are required */
767 if (do_reloc) {
768 ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo);
769 if (ret) {
770 NV_PRINTK(err, cli, "reloc apply: %d\n", ret);
771 goto out;
772 }
773 }
774
775 if (chan->dma.ib_max) {
776 ret = nouveau_dma_wait(chan, req->nr_push + 1, 16);
777 if (ret) {
778 NV_PRINTK(err, cli, "nv50cal_space: %d\n", ret);
779 goto out;
780 }
781
782 for (i = 0; i < req->nr_push; i++) {
783 struct nouveau_vma *vma = (void *)(unsigned long)
784 bo[push[i].bo_index].user_priv;
785
786 nv50_dma_push(chan, vma->addr + push[i].offset,
787 push[i].length);
788 }
789 } else
790 if (drm->client.device.info.chipset >= 0x25) {
791 ret = RING_SPACE(chan, req->nr_push * 2);
792 if (ret) {
793 NV_PRINTK(err, cli, "cal_space: %d\n", ret);
794 goto out;
795 }
796
797 for (i = 0; i < req->nr_push; i++) {
798 struct nouveau_bo *nvbo = (void *)(unsigned long)
799 bo[push[i].bo_index].user_priv;
800
801 OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2);
802 OUT_RING(chan, 0);
803 }
804 } else {
805 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
806 if (ret) {
807 NV_PRINTK(err, cli, "jmp_space: %d\n", ret);
808 goto out;
809 }
810
811 for (i = 0; i < req->nr_push; i++) {
812 struct nouveau_bo *nvbo = (void *)(unsigned long)
813 bo[push[i].bo_index].user_priv;
814 uint32_t cmd;
815
816 cmd = chan->push.addr + ((chan->dma.cur + 2) << 2);
817 cmd |= 0x20000000;
818 if (unlikely(cmd != req->suffix0)) {
819 if (!nvbo->kmap.virtual) {
820 ret = ttm_bo_kmap(&nvbo->bo, 0,
821 nvbo->bo.mem.
822 num_pages,
823 &nvbo->kmap);
824 if (ret) {
825 WIND_RING(chan);
826 goto out;
827 }
828 nvbo->validate_mapped = true;
829 }
830
831 nouveau_bo_wr32(nvbo, (push[i].offset +
832 push[i].length - 8) / 4, cmd);
833 }
834
835 OUT_RING(chan, 0x20000000 |
836 (nvbo->bo.offset + push[i].offset));
837 OUT_RING(chan, 0);
838 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
839 OUT_RING(chan, 0);
840 }
841 }
842
843 ret = nouveau_fence_new(chan, false, &fence);
844 if (ret) {
845 NV_PRINTK(err, cli, "error fencing pushbuf: %d\n", ret);
846 WIND_RING(chan);
847 goto out;
848 }
849
850out:
851 validate_fini(&op, chan, fence, bo);
852 nouveau_fence_unref(&fence);
853
854out_prevalid:
855 u_free(bo);
856 u_free(push);
857
858out_next:
859 if (chan->dma.ib_max) {
860 req->suffix0 = 0x00000000;
861 req->suffix1 = 0x00000000;
862 } else
863 if (drm->client.device.info.chipset >= 0x25) {
864 req->suffix0 = 0x00020000;
865 req->suffix1 = 0x00000000;
866 } else {
867 req->suffix0 = 0x20000000 |
868 (chan->push.addr + ((chan->dma.cur + 2) << 2));
869 req->suffix1 = 0x00000000;
870 }
871
872 return nouveau_abi16_put(abi16, ret);
873}
874
875int
876nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
877 struct drm_file *file_priv)
878{
879 struct drm_nouveau_gem_cpu_prep *req = data;
880 struct drm_gem_object *gem;
881 struct nouveau_bo *nvbo;
882 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
883 bool write = !!(req->flags & NOUVEAU_GEM_CPU_PREP_WRITE);
884 long lret;
885 int ret;
886
887 gem = drm_gem_object_lookup(file_priv, req->handle);
888 if (!gem)
889 return -ENOENT;
890 nvbo = nouveau_gem_object(gem);
891
892 lret = dma_resv_wait_timeout_rcu(nvbo->bo.base.resv, write, true,
893 no_wait ? 0 : 30 * HZ);
894 if (!lret)
895 ret = -EBUSY;
896 else if (lret > 0)
897 ret = 0;
898 else
899 ret = lret;
900
901 nouveau_bo_sync_for_cpu(nvbo);
902 drm_gem_object_put_unlocked(gem);
903
904 return ret;
905}
906
907int
908nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
909 struct drm_file *file_priv)
910{
911 struct drm_nouveau_gem_cpu_fini *req = data;
912 struct drm_gem_object *gem;
913 struct nouveau_bo *nvbo;
914
915 gem = drm_gem_object_lookup(file_priv, req->handle);
916 if (!gem)
917 return -ENOENT;
918 nvbo = nouveau_gem_object(gem);
919
920 nouveau_bo_sync_for_device(nvbo);
921 drm_gem_object_put_unlocked(gem);
922 return 0;
923}
924
925int
926nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
927 struct drm_file *file_priv)
928{
929 struct drm_nouveau_gem_info *req = data;
930 struct drm_gem_object *gem;
931 int ret;
932
933 gem = drm_gem_object_lookup(file_priv, req->handle);
934 if (!gem)
935 return -ENOENT;
936
937 ret = nouveau_gem_info(file_priv, gem, req);
938 drm_gem_object_put_unlocked(gem);
939 return ret;
940}
941