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 <subdev/fb.h>
28
29 #include "nouveau_drm.h"
30 #include "nouveau_dma.h"
31 #include "nouveau_fence.h"
32 #include "nouveau_abi16.h"
33
34 #include "nouveau_ttm.h"
35 #include "nouveau_gem.h"
36
37 int
nouveau_gem_object_new(struct drm_gem_object * gem)38 nouveau_gem_object_new(struct drm_gem_object *gem)
39 {
40 return 0;
41 }
42
43 void
nouveau_gem_object_del(struct drm_gem_object * gem)44 nouveau_gem_object_del(struct drm_gem_object *gem)
45 {
46 struct nouveau_bo *nvbo = gem->driver_private;
47 struct ttm_buffer_object *bo = &nvbo->bo;
48
49 if (!nvbo)
50 return;
51 nvbo->gem = NULL;
52
53 if (unlikely(nvbo->pin_refcnt)) {
54 nvbo->pin_refcnt = 1;
55 nouveau_bo_unpin(nvbo);
56 }
57
58 if (gem->import_attach)
59 drm_prime_gem_destroy(gem, nvbo->bo.sg);
60
61 ttm_bo_unref(&bo);
62
63 drm_gem_object_release(gem);
64 kfree(gem);
65 }
66
67 int
nouveau_gem_object_open(struct drm_gem_object * gem,struct drm_file * file_priv)68 nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv)
69 {
70 struct nouveau_cli *cli = nouveau_cli(file_priv);
71 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
72 struct nouveau_vma *vma;
73 int ret;
74
75 if (!cli->base.vm)
76 return 0;
77
78 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0);
79 if (ret)
80 return ret;
81
82 vma = nouveau_bo_vma_find(nvbo, cli->base.vm);
83 if (!vma) {
84 vma = kzalloc(sizeof(*vma), GFP_KERNEL);
85 if (!vma) {
86 ret = -ENOMEM;
87 goto out;
88 }
89
90 ret = nouveau_bo_vma_add(nvbo, cli->base.vm, vma);
91 if (ret) {
92 kfree(vma);
93 goto out;
94 }
95 } else {
96 vma->refcount++;
97 }
98
99 out:
100 ttm_bo_unreserve(&nvbo->bo);
101 return ret;
102 }
103
104 void
nouveau_gem_object_close(struct drm_gem_object * gem,struct drm_file * file_priv)105 nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv)
106 {
107 struct nouveau_cli *cli = nouveau_cli(file_priv);
108 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
109 struct nouveau_vma *vma;
110 int ret;
111
112 if (!cli->base.vm)
113 return;
114
115 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0);
116 if (ret)
117 return;
118
119 vma = nouveau_bo_vma_find(nvbo, cli->base.vm);
120 if (vma) {
121 if (--vma->refcount == 0) {
122 nouveau_bo_vma_del(nvbo, vma);
123 kfree(vma);
124 }
125 }
126 ttm_bo_unreserve(&nvbo->bo);
127 }
128
129 int
nouveau_gem_new(struct drm_device * dev,int size,int align,uint32_t domain,uint32_t tile_mode,uint32_t tile_flags,struct nouveau_bo ** pnvbo)130 nouveau_gem_new(struct drm_device *dev, int size, int align, uint32_t domain,
131 uint32_t tile_mode, uint32_t tile_flags,
132 struct nouveau_bo **pnvbo)
133 {
134 struct nouveau_drm *drm = nouveau_drm(dev);
135 struct nouveau_bo *nvbo;
136 u32 flags = 0;
137 int ret;
138
139 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
140 flags |= TTM_PL_FLAG_VRAM;
141 if (domain & NOUVEAU_GEM_DOMAIN_GART)
142 flags |= TTM_PL_FLAG_TT;
143 if (!flags || domain & NOUVEAU_GEM_DOMAIN_CPU)
144 flags |= TTM_PL_FLAG_SYSTEM;
145
146 ret = nouveau_bo_new(dev, size, align, flags, tile_mode,
147 tile_flags, NULL, pnvbo);
148 if (ret)
149 return ret;
150 nvbo = *pnvbo;
151
152 /* we restrict allowed domains on nv50+ to only the types
153 * that were requested at creation time. not possibly on
154 * earlier chips without busting the ABI.
155 */
156 nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM |
157 NOUVEAU_GEM_DOMAIN_GART;
158 if (nv_device(drm->device)->card_type >= NV_50)
159 nvbo->valid_domains &= domain;
160
161 nvbo->gem = drm_gem_object_alloc(dev, nvbo->bo.mem.size);
162 if (!nvbo->gem) {
163 nouveau_bo_ref(NULL, pnvbo);
164 return -ENOMEM;
165 }
166
167 nvbo->bo.persistent_swap_storage = nvbo->gem->filp;
168 nvbo->gem->driver_private = nvbo;
169 return 0;
170 }
171
172 static int
nouveau_gem_info(struct drm_file * file_priv,struct drm_gem_object * gem,struct drm_nouveau_gem_info * rep)173 nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
174 struct drm_nouveau_gem_info *rep)
175 {
176 struct nouveau_cli *cli = nouveau_cli(file_priv);
177 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
178 struct nouveau_vma *vma;
179
180 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
181 rep->domain = NOUVEAU_GEM_DOMAIN_GART;
182 else
183 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
184
185 rep->offset = nvbo->bo.offset;
186 if (cli->base.vm) {
187 vma = nouveau_bo_vma_find(nvbo, cli->base.vm);
188 if (!vma)
189 return -EINVAL;
190
191 rep->offset = vma->offset;
192 }
193
194 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
195 rep->map_handle = nvbo->bo.addr_space_offset;
196 rep->tile_mode = nvbo->tile_mode;
197 rep->tile_flags = nvbo->tile_flags;
198 return 0;
199 }
200
201 int
nouveau_gem_ioctl_new(struct drm_device * dev,void * data,struct drm_file * file_priv)202 nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
203 struct drm_file *file_priv)
204 {
205 struct nouveau_drm *drm = nouveau_drm(dev);
206 struct nouveau_cli *cli = nouveau_cli(file_priv);
207 struct nouveau_fb *pfb = nouveau_fb(drm->device);
208 struct drm_nouveau_gem_new *req = data;
209 struct nouveau_bo *nvbo = NULL;
210 int ret = 0;
211
212 drm->ttm.bdev.dev_mapping = drm->dev->dev_mapping;
213
214 if (!pfb->memtype_valid(pfb, req->info.tile_flags)) {
215 NV_ERROR(cli, "bad page flags: 0x%08x\n", req->info.tile_flags);
216 return -EINVAL;
217 }
218
219 ret = nouveau_gem_new(dev, req->info.size, req->align,
220 req->info.domain, req->info.tile_mode,
221 req->info.tile_flags, &nvbo);
222 if (ret)
223 return ret;
224
225 ret = drm_gem_handle_create(file_priv, nvbo->gem, &req->info.handle);
226 if (ret == 0) {
227 ret = nouveau_gem_info(file_priv, nvbo->gem, &req->info);
228 if (ret)
229 drm_gem_handle_delete(file_priv, req->info.handle);
230 }
231
232 /* drop reference from allocate - handle holds it now */
233 drm_gem_object_unreference_unlocked(nvbo->gem);
234 return ret;
235 }
236
237 static int
nouveau_gem_set_domain(struct drm_gem_object * gem,uint32_t read_domains,uint32_t write_domains,uint32_t valid_domains)238 nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
239 uint32_t write_domains, uint32_t valid_domains)
240 {
241 struct nouveau_bo *nvbo = gem->driver_private;
242 struct ttm_buffer_object *bo = &nvbo->bo;
243 uint32_t domains = valid_domains & nvbo->valid_domains &
244 (write_domains ? write_domains : read_domains);
245 uint32_t pref_flags = 0, valid_flags = 0;
246
247 if (!domains)
248 return -EINVAL;
249
250 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
251 valid_flags |= TTM_PL_FLAG_VRAM;
252
253 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART)
254 valid_flags |= TTM_PL_FLAG_TT;
255
256 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
257 bo->mem.mem_type == TTM_PL_VRAM)
258 pref_flags |= TTM_PL_FLAG_VRAM;
259
260 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
261 bo->mem.mem_type == TTM_PL_TT)
262 pref_flags |= TTM_PL_FLAG_TT;
263
264 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
265 pref_flags |= TTM_PL_FLAG_VRAM;
266
267 else
268 pref_flags |= TTM_PL_FLAG_TT;
269
270 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags);
271
272 return 0;
273 }
274
275 struct validate_op {
276 struct list_head vram_list;
277 struct list_head gart_list;
278 struct list_head both_list;
279 };
280
281 static void
validate_fini_list(struct list_head * list,struct nouveau_fence * fence)282 validate_fini_list(struct list_head *list, struct nouveau_fence *fence)
283 {
284 struct list_head *entry, *tmp;
285 struct nouveau_bo *nvbo;
286
287 list_for_each_safe(entry, tmp, list) {
288 nvbo = list_entry(entry, struct nouveau_bo, entry);
289
290 nouveau_bo_fence(nvbo, fence);
291
292 if (unlikely(nvbo->validate_mapped)) {
293 ttm_bo_kunmap(&nvbo->kmap);
294 nvbo->validate_mapped = false;
295 }
296
297 list_del(&nvbo->entry);
298 nvbo->reserved_by = NULL;
299 ttm_bo_unreserve(&nvbo->bo);
300 drm_gem_object_unreference_unlocked(nvbo->gem);
301 }
302 }
303
304 static void
validate_fini(struct validate_op * op,struct nouveau_fence * fence)305 validate_fini(struct validate_op *op, struct nouveau_fence* fence)
306 {
307 validate_fini_list(&op->vram_list, fence);
308 validate_fini_list(&op->gart_list, fence);
309 validate_fini_list(&op->both_list, fence);
310 }
311
312 static int
validate_init(struct nouveau_channel * chan,struct drm_file * file_priv,struct drm_nouveau_gem_pushbuf_bo * pbbo,int nr_buffers,struct validate_op * op)313 validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
314 struct drm_nouveau_gem_pushbuf_bo *pbbo,
315 int nr_buffers, struct validate_op *op)
316 {
317 struct nouveau_cli *cli = nouveau_cli(file_priv);
318 struct drm_device *dev = chan->drm->dev;
319 struct nouveau_drm *drm = nouveau_drm(dev);
320 uint32_t sequence;
321 int trycnt = 0;
322 int ret, i;
323 struct nouveau_bo *res_bo = NULL;
324
325 sequence = atomic_add_return(1, &drm->ttm.validate_sequence);
326 retry:
327 if (++trycnt > 100000) {
328 NV_ERROR(cli, "%s failed and gave up.\n", __func__);
329 return -EINVAL;
330 }
331
332 for (i = 0; i < nr_buffers; i++) {
333 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
334 struct drm_gem_object *gem;
335 struct nouveau_bo *nvbo;
336
337 gem = drm_gem_object_lookup(dev, file_priv, b->handle);
338 if (!gem) {
339 NV_ERROR(cli, "Unknown handle 0x%08x\n", b->handle);
340 validate_fini(op, NULL);
341 return -ENOENT;
342 }
343 nvbo = gem->driver_private;
344 if (nvbo == res_bo) {
345 res_bo = NULL;
346 drm_gem_object_unreference_unlocked(gem);
347 continue;
348 }
349
350 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
351 NV_ERROR(cli, "multiple instances of buffer %d on "
352 "validation list\n", b->handle);
353 drm_gem_object_unreference_unlocked(gem);
354 validate_fini(op, NULL);
355 return -EINVAL;
356 }
357
358 ret = ttm_bo_reserve(&nvbo->bo, true, false, true, sequence);
359 if (ret) {
360 validate_fini(op, NULL);
361 if (unlikely(ret == -EAGAIN)) {
362 sequence = atomic_add_return(1, &drm->ttm.validate_sequence);
363 ret = ttm_bo_reserve_slowpath(&nvbo->bo, true,
364 sequence);
365 if (!ret)
366 res_bo = nvbo;
367 }
368 if (unlikely(ret)) {
369 drm_gem_object_unreference_unlocked(gem);
370 if (ret != -ERESTARTSYS)
371 NV_ERROR(cli, "fail reserve\n");
372 return ret;
373 }
374 }
375
376 b->user_priv = (uint64_t)(unsigned long)nvbo;
377 nvbo->reserved_by = file_priv;
378 nvbo->pbbo_index = i;
379 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
380 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
381 list_add_tail(&nvbo->entry, &op->both_list);
382 else
383 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
384 list_add_tail(&nvbo->entry, &op->vram_list);
385 else
386 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
387 list_add_tail(&nvbo->entry, &op->gart_list);
388 else {
389 NV_ERROR(cli, "invalid valid domains: 0x%08x\n",
390 b->valid_domains);
391 list_add_tail(&nvbo->entry, &op->both_list);
392 validate_fini(op, NULL);
393 return -EINVAL;
394 }
395 if (nvbo == res_bo)
396 goto retry;
397 }
398
399 return 0;
400 }
401
402 static int
validate_sync(struct nouveau_channel * chan,struct nouveau_bo * nvbo)403 validate_sync(struct nouveau_channel *chan, struct nouveau_bo *nvbo)
404 {
405 struct nouveau_fence *fence = NULL;
406 int ret = 0;
407
408 spin_lock(&nvbo->bo.bdev->fence_lock);
409 if (nvbo->bo.sync_obj)
410 fence = nouveau_fence_ref(nvbo->bo.sync_obj);
411 spin_unlock(&nvbo->bo.bdev->fence_lock);
412
413 if (fence) {
414 ret = nouveau_fence_sync(fence, chan);
415 nouveau_fence_unref(&fence);
416 }
417
418 return ret;
419 }
420
421 static int
validate_list(struct nouveau_channel * chan,struct nouveau_cli * cli,struct list_head * list,struct drm_nouveau_gem_pushbuf_bo * pbbo,uint64_t user_pbbo_ptr)422 validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli,
423 struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo,
424 uint64_t user_pbbo_ptr)
425 {
426 struct nouveau_drm *drm = chan->drm;
427 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
428 (void __force __user *)(uintptr_t)user_pbbo_ptr;
429 struct nouveau_bo *nvbo;
430 int ret, relocs = 0;
431
432 list_for_each_entry(nvbo, list, entry) {
433 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
434
435 ret = validate_sync(chan, nvbo);
436 if (unlikely(ret)) {
437 NV_ERROR(cli, "fail pre-validate sync\n");
438 return ret;
439 }
440
441 ret = nouveau_gem_set_domain(nvbo->gem, b->read_domains,
442 b->write_domains,
443 b->valid_domains);
444 if (unlikely(ret)) {
445 NV_ERROR(cli, "fail set_domain\n");
446 return ret;
447 }
448
449 ret = nouveau_bo_validate(nvbo, true, false);
450 if (unlikely(ret)) {
451 if (ret != -ERESTARTSYS)
452 NV_ERROR(cli, "fail ttm_validate\n");
453 return ret;
454 }
455
456 ret = validate_sync(chan, nvbo);
457 if (unlikely(ret)) {
458 NV_ERROR(cli, "fail post-validate sync\n");
459 return ret;
460 }
461
462 if (nv_device(drm->device)->card_type < NV_50) {
463 if (nvbo->bo.offset == b->presumed.offset &&
464 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
465 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
466 (nvbo->bo.mem.mem_type == TTM_PL_TT &&
467 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
468 continue;
469
470 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
471 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
472 else
473 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
474 b->presumed.offset = nvbo->bo.offset;
475 b->presumed.valid = 0;
476 relocs++;
477
478 if (DRM_COPY_TO_USER(&upbbo[nvbo->pbbo_index].presumed,
479 &b->presumed, sizeof(b->presumed)))
480 return -EFAULT;
481 }
482 }
483
484 return relocs;
485 }
486
487 static int
nouveau_gem_pushbuf_validate(struct nouveau_channel * chan,struct drm_file * file_priv,struct drm_nouveau_gem_pushbuf_bo * pbbo,uint64_t user_buffers,int nr_buffers,struct validate_op * op,int * apply_relocs)488 nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
489 struct drm_file *file_priv,
490 struct drm_nouveau_gem_pushbuf_bo *pbbo,
491 uint64_t user_buffers, int nr_buffers,
492 struct validate_op *op, int *apply_relocs)
493 {
494 struct nouveau_cli *cli = nouveau_cli(file_priv);
495 int ret, relocs = 0;
496
497 INIT_LIST_HEAD(&op->vram_list);
498 INIT_LIST_HEAD(&op->gart_list);
499 INIT_LIST_HEAD(&op->both_list);
500
501 if (nr_buffers == 0)
502 return 0;
503
504 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
505 if (unlikely(ret)) {
506 if (ret != -ERESTARTSYS)
507 NV_ERROR(cli, "validate_init\n");
508 return ret;
509 }
510
511 ret = validate_list(chan, cli, &op->vram_list, pbbo, user_buffers);
512 if (unlikely(ret < 0)) {
513 if (ret != -ERESTARTSYS)
514 NV_ERROR(cli, "validate vram_list\n");
515 validate_fini(op, NULL);
516 return ret;
517 }
518 relocs += ret;
519
520 ret = validate_list(chan, cli, &op->gart_list, pbbo, user_buffers);
521 if (unlikely(ret < 0)) {
522 if (ret != -ERESTARTSYS)
523 NV_ERROR(cli, "validate gart_list\n");
524 validate_fini(op, NULL);
525 return ret;
526 }
527 relocs += ret;
528
529 ret = validate_list(chan, cli, &op->both_list, pbbo, user_buffers);
530 if (unlikely(ret < 0)) {
531 if (ret != -ERESTARTSYS)
532 NV_ERROR(cli, "validate both_list\n");
533 validate_fini(op, NULL);
534 return ret;
535 }
536 relocs += ret;
537
538 *apply_relocs = relocs;
539 return 0;
540 }
541
542 static inline void *
u_memcpya(uint64_t user,unsigned nmemb,unsigned size)543 u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
544 {
545 void *mem;
546 void __user *userptr = (void __force __user *)(uintptr_t)user;
547
548 mem = kmalloc(nmemb * size, GFP_KERNEL);
549 if (!mem)
550 return ERR_PTR(-ENOMEM);
551
552 if (DRM_COPY_FROM_USER(mem, userptr, nmemb * size)) {
553 kfree(mem);
554 return ERR_PTR(-EFAULT);
555 }
556
557 return mem;
558 }
559
560 static int
nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli * cli,struct drm_nouveau_gem_pushbuf * req,struct drm_nouveau_gem_pushbuf_bo * bo)561 nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
562 struct drm_nouveau_gem_pushbuf *req,
563 struct drm_nouveau_gem_pushbuf_bo *bo)
564 {
565 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
566 int ret = 0;
567 unsigned i;
568
569 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
570 if (IS_ERR(reloc))
571 return PTR_ERR(reloc);
572
573 for (i = 0; i < req->nr_relocs; i++) {
574 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
575 struct drm_nouveau_gem_pushbuf_bo *b;
576 struct nouveau_bo *nvbo;
577 uint32_t data;
578
579 if (unlikely(r->bo_index > req->nr_buffers)) {
580 NV_ERROR(cli, "reloc bo index invalid\n");
581 ret = -EINVAL;
582 break;
583 }
584
585 b = &bo[r->bo_index];
586 if (b->presumed.valid)
587 continue;
588
589 if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
590 NV_ERROR(cli, "reloc container bo index invalid\n");
591 ret = -EINVAL;
592 break;
593 }
594 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
595
596 if (unlikely(r->reloc_bo_offset + 4 >
597 nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
598 NV_ERROR(cli, "reloc outside of bo\n");
599 ret = -EINVAL;
600 break;
601 }
602
603 if (!nvbo->kmap.virtual) {
604 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
605 &nvbo->kmap);
606 if (ret) {
607 NV_ERROR(cli, "failed kmap for reloc\n");
608 break;
609 }
610 nvbo->validate_mapped = true;
611 }
612
613 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
614 data = b->presumed.offset + r->data;
615 else
616 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
617 data = (b->presumed.offset + r->data) >> 32;
618 else
619 data = r->data;
620
621 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
622 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
623 data |= r->tor;
624 else
625 data |= r->vor;
626 }
627
628 spin_lock(&nvbo->bo.bdev->fence_lock);
629 ret = ttm_bo_wait(&nvbo->bo, false, false, false);
630 spin_unlock(&nvbo->bo.bdev->fence_lock);
631 if (ret) {
632 NV_ERROR(cli, "reloc wait_idle failed: %d\n", ret);
633 break;
634 }
635
636 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
637 }
638
639 kfree(reloc);
640 return ret;
641 }
642
643 int
nouveau_gem_ioctl_pushbuf(struct drm_device * dev,void * data,struct drm_file * file_priv)644 nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
645 struct drm_file *file_priv)
646 {
647 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
648 struct nouveau_cli *cli = nouveau_cli(file_priv);
649 struct nouveau_abi16_chan *temp;
650 struct nouveau_drm *drm = nouveau_drm(dev);
651 struct drm_nouveau_gem_pushbuf *req = data;
652 struct drm_nouveau_gem_pushbuf_push *push;
653 struct drm_nouveau_gem_pushbuf_bo *bo;
654 struct nouveau_channel *chan = NULL;
655 struct validate_op op;
656 struct nouveau_fence *fence = NULL;
657 int i, j, ret = 0, do_reloc = 0;
658
659 if (unlikely(!abi16))
660 return -ENOMEM;
661
662 list_for_each_entry(temp, &abi16->channels, head) {
663 if (temp->chan->handle == (NVDRM_CHAN | req->channel)) {
664 chan = temp->chan;
665 break;
666 }
667 }
668
669 if (!chan)
670 return nouveau_abi16_put(abi16, -ENOENT);
671
672 req->vram_available = drm->gem.vram_available;
673 req->gart_available = drm->gem.gart_available;
674 if (unlikely(req->nr_push == 0))
675 goto out_next;
676
677 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
678 NV_ERROR(cli, "pushbuf push count exceeds limit: %d max %d\n",
679 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
680 return nouveau_abi16_put(abi16, -EINVAL);
681 }
682
683 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
684 NV_ERROR(cli, "pushbuf bo count exceeds limit: %d max %d\n",
685 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
686 return nouveau_abi16_put(abi16, -EINVAL);
687 }
688
689 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
690 NV_ERROR(cli, "pushbuf reloc count exceeds limit: %d max %d\n",
691 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
692 return nouveau_abi16_put(abi16, -EINVAL);
693 }
694
695 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
696 if (IS_ERR(push))
697 return nouveau_abi16_put(abi16, PTR_ERR(push));
698
699 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
700 if (IS_ERR(bo)) {
701 kfree(push);
702 return nouveau_abi16_put(abi16, PTR_ERR(bo));
703 }
704
705 /* Ensure all push buffers are on validate list */
706 for (i = 0; i < req->nr_push; i++) {
707 if (push[i].bo_index >= req->nr_buffers) {
708 NV_ERROR(cli, "push %d buffer not in list\n", i);
709 ret = -EINVAL;
710 goto out_prevalid;
711 }
712 }
713
714 /* Validate buffer list */
715 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
716 req->nr_buffers, &op, &do_reloc);
717 if (ret) {
718 if (ret != -ERESTARTSYS)
719 NV_ERROR(cli, "validate: %d\n", ret);
720 goto out_prevalid;
721 }
722
723 /* Apply any relocations that are required */
724 if (do_reloc) {
725 ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo);
726 if (ret) {
727 NV_ERROR(cli, "reloc apply: %d\n", ret);
728 goto out;
729 }
730 }
731
732 if (chan->dma.ib_max) {
733 ret = nouveau_dma_wait(chan, req->nr_push + 1, 16);
734 if (ret) {
735 NV_ERROR(cli, "nv50cal_space: %d\n", ret);
736 goto out;
737 }
738
739 for (i = 0; i < req->nr_push; i++) {
740 struct nouveau_bo *nvbo = (void *)(unsigned long)
741 bo[push[i].bo_index].user_priv;
742
743 nv50_dma_push(chan, nvbo, push[i].offset,
744 push[i].length);
745 }
746 } else
747 if (nv_device(drm->device)->chipset >= 0x25) {
748 ret = RING_SPACE(chan, req->nr_push * 2);
749 if (ret) {
750 NV_ERROR(cli, "cal_space: %d\n", ret);
751 goto out;
752 }
753
754 for (i = 0; i < req->nr_push; i++) {
755 struct nouveau_bo *nvbo = (void *)(unsigned long)
756 bo[push[i].bo_index].user_priv;
757
758 OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2);
759 OUT_RING(chan, 0);
760 }
761 } else {
762 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
763 if (ret) {
764 NV_ERROR(cli, "jmp_space: %d\n", ret);
765 goto out;
766 }
767
768 for (i = 0; i < req->nr_push; i++) {
769 struct nouveau_bo *nvbo = (void *)(unsigned long)
770 bo[push[i].bo_index].user_priv;
771 uint32_t cmd;
772
773 cmd = chan->push.vma.offset + ((chan->dma.cur + 2) << 2);
774 cmd |= 0x20000000;
775 if (unlikely(cmd != req->suffix0)) {
776 if (!nvbo->kmap.virtual) {
777 ret = ttm_bo_kmap(&nvbo->bo, 0,
778 nvbo->bo.mem.
779 num_pages,
780 &nvbo->kmap);
781 if (ret) {
782 WIND_RING(chan);
783 goto out;
784 }
785 nvbo->validate_mapped = true;
786 }
787
788 nouveau_bo_wr32(nvbo, (push[i].offset +
789 push[i].length - 8) / 4, cmd);
790 }
791
792 OUT_RING(chan, 0x20000000 |
793 (nvbo->bo.offset + push[i].offset));
794 OUT_RING(chan, 0);
795 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
796 OUT_RING(chan, 0);
797 }
798 }
799
800 ret = nouveau_fence_new(chan, false, &fence);
801 if (ret) {
802 NV_ERROR(cli, "error fencing pushbuf: %d\n", ret);
803 WIND_RING(chan);
804 goto out;
805 }
806
807 out:
808 validate_fini(&op, fence);
809 nouveau_fence_unref(&fence);
810
811 out_prevalid:
812 kfree(bo);
813 kfree(push);
814
815 out_next:
816 if (chan->dma.ib_max) {
817 req->suffix0 = 0x00000000;
818 req->suffix1 = 0x00000000;
819 } else
820 if (nv_device(drm->device)->chipset >= 0x25) {
821 req->suffix0 = 0x00020000;
822 req->suffix1 = 0x00000000;
823 } else {
824 req->suffix0 = 0x20000000 |
825 (chan->push.vma.offset + ((chan->dma.cur + 2) << 2));
826 req->suffix1 = 0x00000000;
827 }
828
829 return nouveau_abi16_put(abi16, ret);
830 }
831
832 static inline uint32_t
domain_to_ttm(struct nouveau_bo * nvbo,uint32_t domain)833 domain_to_ttm(struct nouveau_bo *nvbo, uint32_t domain)
834 {
835 uint32_t flags = 0;
836
837 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
838 flags |= TTM_PL_FLAG_VRAM;
839 if (domain & NOUVEAU_GEM_DOMAIN_GART)
840 flags |= TTM_PL_FLAG_TT;
841
842 return flags;
843 }
844
845 int
nouveau_gem_ioctl_cpu_prep(struct drm_device * dev,void * data,struct drm_file * file_priv)846 nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
847 struct drm_file *file_priv)
848 {
849 struct drm_nouveau_gem_cpu_prep *req = data;
850 struct drm_gem_object *gem;
851 struct nouveau_bo *nvbo;
852 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
853 int ret = -EINVAL;
854
855 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
856 if (!gem)
857 return -ENOENT;
858 nvbo = nouveau_gem_object(gem);
859
860 spin_lock(&nvbo->bo.bdev->fence_lock);
861 ret = ttm_bo_wait(&nvbo->bo, true, true, no_wait);
862 spin_unlock(&nvbo->bo.bdev->fence_lock);
863 drm_gem_object_unreference_unlocked(gem);
864 return ret;
865 }
866
867 int
nouveau_gem_ioctl_cpu_fini(struct drm_device * dev,void * data,struct drm_file * file_priv)868 nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
869 struct drm_file *file_priv)
870 {
871 return 0;
872 }
873
874 int
nouveau_gem_ioctl_info(struct drm_device * dev,void * data,struct drm_file * file_priv)875 nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
876 struct drm_file *file_priv)
877 {
878 struct drm_nouveau_gem_info *req = data;
879 struct drm_gem_object *gem;
880 int ret;
881
882 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
883 if (!gem)
884 return -ENOENT;
885
886 ret = nouveau_gem_info(file_priv, gem, req);
887 drm_gem_object_unreference_unlocked(gem);
888 return ret;
889 }
890
891