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Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
[deliverable/linux.git] / drivers / gpu / drm / nouveau / nouveau_gem.c
CommitLineData
6ee73861
BS		 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 */
6ee73861 26
ebb945a9
BS		 27#include <subdev/fb.h>
28
29#include "nouveau_drm.h"
6ee73861 30#include "nouveau_dma.h"
d375e7d5 31#include "nouveau_fence.h"
ebb945a9 32#include "nouveau_abi16.h"
6ee73861 33
ebb945a9
BS		 34#include "nouveau_ttm.h"
35#include "nouveau_gem.h"
6ee73861
BS		 36
37int
38nouveau_gem_object_new(struct drm_gem_object *gem)
39{
40 return 0;
41}
42
43void
44nouveau_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
22b33e8e
DA		 53 if (gem->import_attach)
54 drm_prime_gem_destroy(gem, nvbo->bo.sg);
55
6ee73861 56 ttm_bo_unref(&bo);
fd632aa3
DV		 57
58 drm_gem_object_release(gem);
59 kfree(gem);
6ee73861
BS		 60}
61
639212d0
BS		 62int
63nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv)
64{
ebb945a9 65 struct nouveau_cli *cli = nouveau_cli(file_priv);
2fd3db6f
BS		 66 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
67 struct nouveau_vma *vma;
68 int ret;
639212d0 69
ebb945a9 70 if (!cli->base.vm)
639212d0
BS		 71 return 0;
72
2fd3db6f
BS		 73 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0);
74 if (ret)
75 return ret;
76
ebb945a9 77 vma = nouveau_bo_vma_find(nvbo, cli->base.vm);
2fd3db6f
BS		 78 if (!vma) {
79 vma = kzalloc(sizeof(*vma), GFP_KERNEL);
80 if (!vma) {
81 ret = -ENOMEM;
82 goto out;
83 }
84
ebb945a9 85 ret = nouveau_bo_vma_add(nvbo, cli->base.vm, vma);
2fd3db6f
BS		 86 if (ret) {
87 kfree(vma);
88 goto out;
89 }
90 } else {
91 vma->refcount++;
92 }
93
94out:
95 ttm_bo_unreserve(&nvbo->bo);
96 return ret;
639212d0
BS		 97}
98
c4c7044f
BS		 99static void
100nouveau_gem_object_delete(void *data)
101{
102 struct nouveau_vma *vma = data;
103 nouveau_vm_unmap(vma);
104 nouveau_vm_put(vma);
105 kfree(vma);
106}
107
108static void
109nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nouveau_vma *vma)
110{
111 const bool mapped = nvbo->bo.mem.mem_type != TTM_PL_SYSTEM;
112 struct nouveau_fence *fence = NULL;
113
114 list_del(&vma->head);
115
116 if (mapped) {
117 spin_lock(&nvbo->bo.bdev->fence_lock);
118 if (nvbo->bo.sync_obj)
119 fence = nouveau_fence_ref(nvbo->bo.sync_obj);
120 spin_unlock(&nvbo->bo.bdev->fence_lock);
121 }
122
123 if (fence) {
124 nouveau_fence_work(fence, nouveau_gem_object_delete, vma);
125 } else {
126 if (mapped)
127 nouveau_vm_unmap(vma);
128 nouveau_vm_put(vma);
129 kfree(vma);
130 }
131 nouveau_fence_unref(&fence);
132}
133
639212d0
BS		 134void
135nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv)
136{
ebb945a9 137 struct nouveau_cli *cli = nouveau_cli(file_priv);
2fd3db6f
BS		 138 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
139 struct nouveau_vma *vma;
140 int ret;
639212d0 141
ebb945a9 142 if (!cli->base.vm)
639212d0 143 return;
2fd3db6f
BS		 144
145 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0);
146 if (ret)
147 return;
148
ebb945a9 149 vma = nouveau_bo_vma_find(nvbo, cli->base.vm);
2fd3db6f 150 if (vma) {
c4c7044f
BS		 151 if (--vma->refcount == 0)
152 nouveau_gem_object_unmap(nvbo, vma);
2fd3db6f
BS		 153 }
154 ttm_bo_unreserve(&nvbo->bo);
639212d0
BS		 155}
156
6ee73861 157int
f6d4e621
BS		 158nouveau_gem_new(struct drm_device *dev, int size, int align, uint32_t domain,
159 uint32_t tile_mode, uint32_t tile_flags,
160 struct nouveau_bo **pnvbo)
6ee73861 161{
ebb945a9 162 struct nouveau_drm *drm = nouveau_drm(dev);
6ee73861 163 struct nouveau_bo *nvbo;
6ba9a683 164 u32 flags = 0;
6ee73861
BS		 165 int ret;
166
6ba9a683
BS		 167 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
168 flags |= TTM_PL_FLAG_VRAM;
169 if (domain & NOUVEAU_GEM_DOMAIN_GART)
170 flags |= TTM_PL_FLAG_TT;
171 if (!flags || domain & NOUVEAU_GEM_DOMAIN_CPU)
172 flags |= TTM_PL_FLAG_SYSTEM;
173
7375c95b 174 ret = nouveau_bo_new(dev, size, align, flags, tile_mode,
22b33e8e 175 tile_flags, NULL, pnvbo);
6ee73861
BS		 176 if (ret)
177 return ret;
178 nvbo = *pnvbo;
179
db5c8e29
BS		 180 /* we restrict allowed domains on nv50+ to only the types
181 * that were requested at creation time. not possibly on
182 * earlier chips without busting the ABI.
183 */
184 nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM |
185 NOUVEAU_GEM_DOMAIN_GART;
ebb945a9 186 if (nv_device(drm->device)->card_type >= NV_50)
db5c8e29
BS		 187 nvbo->valid_domains &= domain;
188
6ee73861
BS		 189 nvbo->gem = drm_gem_object_alloc(dev, nvbo->bo.mem.size);
190 if (!nvbo->gem) {
191 nouveau_bo_ref(NULL, pnvbo);
192 return -ENOMEM;
193 }
194
5df23979 195 nvbo->bo.persistent_swap_storage = nvbo->gem->filp;
6ee73861
BS		 196 nvbo->gem->driver_private = nvbo;
197 return 0;
198}
199
200static int
e758a311
BS		 201nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
202 struct drm_nouveau_gem_info *rep)
6ee73861 203{
ebb945a9 204 struct nouveau_cli *cli = nouveau_cli(file_priv);
6ee73861 205 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
e758a311 206 struct nouveau_vma *vma;
6ee73861
BS		 207
208 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
209 rep->domain = NOUVEAU_GEM_DOMAIN_GART;
210 else
211 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
212
e758a311 213 rep->offset = nvbo->bo.offset;
ebb945a9
BS		 214 if (cli->base.vm) {
215 vma = nouveau_bo_vma_find(nvbo, cli->base.vm);
e758a311
BS		 216 if (!vma)
217 return -EINVAL;
218
219 rep->offset = vma->offset;
220 }
221
6ee73861 222 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
72525b3f 223 rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.vma_node);
6ee73861
BS		 224 rep->tile_mode = nvbo->tile_mode;
225 rep->tile_flags = nvbo->tile_flags;
226 return 0;
227}
228
6ee73861
BS		 229int
230nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
231 struct drm_file *file_priv)
232{
ebb945a9 233 struct nouveau_drm *drm = nouveau_drm(dev);
a84fa1a3 234 struct nouveau_cli *cli = nouveau_cli(file_priv);
ebb945a9 235 struct nouveau_fb *pfb = nouveau_fb(drm->device);
6ee73861
BS		 236 struct drm_nouveau_gem_new *req = data;
237 struct nouveau_bo *nvbo = NULL;
6ee73861
BS		 238 int ret = 0;
239
ebb945a9 240 drm->ttm.bdev.dev_mapping = drm->dev->dev_mapping;
6ee73861 241
ebb945a9 242 if (!pfb->memtype_valid(pfb, req->info.tile_flags)) {
a84fa1a3 243 NV_ERROR(cli, "bad page flags: 0x%08x\n", req->info.tile_flags);
6ee73861 244 return -EINVAL;
60d2a88a 245 }
6ee73861 246
f6d4e621 247 ret = nouveau_gem_new(dev, req->info.size, req->align,
6ba9a683
BS		 248 req->info.domain, req->info.tile_mode,
249 req->info.tile_flags, &nvbo);
6ee73861
BS		 250 if (ret)
251 return ret;
252
6ee73861 253 ret = drm_gem_handle_create(file_priv, nvbo->gem, &req->info.handle);
e758a311
BS		 254 if (ret == 0) {
255 ret = nouveau_gem_info(file_priv, nvbo->gem, &req->info);
256 if (ret)
257 drm_gem_handle_delete(file_priv, req->info.handle);
258 }
259
29d08b3e
DA		 260 /* drop reference from allocate - handle holds it now */
261 drm_gem_object_unreference_unlocked(nvbo->gem);
6ee73861
BS		 262 return ret;
263}
264
265static int
266nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
267 uint32_t write_domains, uint32_t valid_domains)
268{
269 struct nouveau_bo *nvbo = gem->driver_private;
270 struct ttm_buffer_object *bo = &nvbo->bo;
db5c8e29 271 uint32_t domains = valid_domains & nvbo->valid_domains &
78ad0f7b
FJ		 272 (write_domains ? write_domains : read_domains);
273 uint32_t pref_flags = 0, valid_flags = 0;
6ee73861 274
78ad0f7b 275 if (!domains)
6ee73861
BS		 276 return -EINVAL;
277
78ad0f7b
FJ		 278 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
279 valid_flags |= TTM_PL_FLAG_VRAM;
280
281 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART)
282 valid_flags |= TTM_PL_FLAG_TT;
283
284 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
285 bo->mem.mem_type == TTM_PL_VRAM)
286 pref_flags |= TTM_PL_FLAG_VRAM;
287
288 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
289 bo->mem.mem_type == TTM_PL_TT)
290 pref_flags |= TTM_PL_FLAG_TT;
291
292 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
293 pref_flags |= TTM_PL_FLAG_VRAM;
294
295 else
296 pref_flags |= TTM_PL_FLAG_TT;
297
298 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags);
6ee73861 299
6ee73861
BS		 300 return 0;
301}
302
303struct validate_op {
6ee73861
BS		 304 struct list_head vram_list;
305 struct list_head gart_list;
306 struct list_head both_list;
ecff665f 307 struct ww_acquire_ctx ticket;
6ee73861
BS		 308};
309
310static void
ecff665f
ML		 311validate_fini_list(struct list_head *list, struct nouveau_fence *fence,
312 struct ww_acquire_ctx *ticket)
6ee73861
BS		 313{
314 struct list_head *entry, *tmp;
315 struct nouveau_bo *nvbo;
316
317 list_for_each_safe(entry, tmp, list) {
318 nvbo = list_entry(entry, struct nouveau_bo, entry);
332b242f
FJ		 319
320 nouveau_bo_fence(nvbo, fence);
6ee73861 321
a1606a95
BS		 322 if (unlikely(nvbo->validate_mapped)) {
323 ttm_bo_kunmap(&nvbo->kmap);
324 nvbo->validate_mapped = false;
325 }
326
6ee73861
BS		 327 list_del(&nvbo->entry);
328 nvbo->reserved_by = NULL;
ecff665f 329 ttm_bo_unreserve_ticket(&nvbo->bo, ticket);
374c3af8 330 drm_gem_object_unreference_unlocked(nvbo->gem);
6ee73861
BS		 331 }
332}
333
334static void
ecff665f 335validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence)
6ee73861 336{
ecff665f
ML		 337 validate_fini_list(&op->vram_list, fence, &op->ticket);
338 validate_fini_list(&op->gart_list, fence, &op->ticket);
339 validate_fini_list(&op->both_list, fence, &op->ticket);
340}
341
342static void
343validate_fini(struct validate_op *op, struct nouveau_fence *fence)
344{
345 validate_fini_no_ticket(op, fence);
346 ww_acquire_fini(&op->ticket);
6ee73861
BS		 347}
348
349static int
350validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
351 struct drm_nouveau_gem_pushbuf_bo *pbbo,
352 int nr_buffers, struct validate_op *op)
353{
a84fa1a3 354 struct nouveau_cli *cli = nouveau_cli(file_priv);
ebb945a9 355 struct drm_device *dev = chan->drm->dev;
6ee73861
BS		 356 int trycnt = 0;
357 int ret, i;
c354c893 358 struct nouveau_bo *res_bo = NULL;
6ee73861 359
ecff665f 360 ww_acquire_init(&op->ticket, &reservation_ww_class);
6ee73861
BS		 361retry:
362 if (++trycnt > 100000) {
a84fa1a3 363 NV_ERROR(cli, "%s failed and gave up.\n", __func__);
6ee73861
BS		 364 return -EINVAL;
365 }
366
367 for (i = 0; i < nr_buffers; i++) {
368 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
369 struct drm_gem_object *gem;
370 struct nouveau_bo *nvbo;
371
372 gem = drm_gem_object_lookup(dev, file_priv, b->handle);
373 if (!gem) {
a84fa1a3 374 NV_ERROR(cli, "Unknown handle 0x%08x\n", b->handle);
ecff665f 375 ww_acquire_done(&op->ticket);
6ee73861 376 validate_fini(op, NULL);
bf79cb91 377 return -ENOENT;
6ee73861
BS		 378 }
379 nvbo = gem->driver_private;
c354c893
ML		 380 if (nvbo == res_bo) {
381 res_bo = NULL;
382 drm_gem_object_unreference_unlocked(gem);
383 continue;
384 }
6ee73861
BS		 385
386 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
a84fa1a3 387 NV_ERROR(cli, "multiple instances of buffer %d on "
6ee73861 388 "validation list\n", b->handle);
5086f69e 389 drm_gem_object_unreference_unlocked(gem);
ecff665f 390 ww_acquire_done(&op->ticket);
6ee73861
BS		 391 validate_fini(op, NULL);
392 return -EINVAL;
393 }
394
ecff665f 395 ret = ttm_bo_reserve(&nvbo->bo, true, false, true, &op->ticket);
6ee73861 396 if (ret) {
ecff665f 397 validate_fini_no_ticket(op, NULL);
5e338405 398 if (unlikely(ret == -EDEADLK)) {
c354c893 399 ret = ttm_bo_reserve_slowpath(&nvbo->bo, true,
ecff665f 400 &op->ticket);
c354c893
ML		 401 if (!ret)
402 res_bo = nvbo;
403 }
938c40ed 404 if (unlikely(ret)) {
ecff665f
ML		 405 ww_acquire_done(&op->ticket);
406 ww_acquire_fini(&op->ticket);
c354c893 407 drm_gem_object_unreference_unlocked(gem);
938c40ed 408 if (ret != -ERESTARTSYS)
a84fa1a3 409 NV_ERROR(cli, "fail reserve\n");
6ee73861 410 return ret;
a1606a95 411 }
6ee73861
BS		 412 }
413
a1606a95 414 b->user_priv = (uint64_t)(unsigned long)nvbo;
6ee73861
BS		 415 nvbo->reserved_by = file_priv;
416 nvbo->pbbo_index = i;
417 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
418 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
419 list_add_tail(&nvbo->entry, &op->both_list);
420 else
421 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
422 list_add_tail(&nvbo->entry, &op->vram_list);
423 else
424 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
425 list_add_tail(&nvbo->entry, &op->gart_list);
426 else {
a84fa1a3 427 NV_ERROR(cli, "invalid valid domains: 0x%08x\n",
6ee73861 428 b->valid_domains);
0208843d 429 list_add_tail(&nvbo->entry, &op->both_list);
ecff665f 430 ww_acquire_done(&op->ticket);
6ee73861
BS		 431 validate_fini(op, NULL);
432 return -EINVAL;
433 }
c354c893
ML		 434 if (nvbo == res_bo)
435 goto retry;
6ee73861
BS		 436 }
437
ecff665f 438 ww_acquire_done(&op->ticket);
6ee73861
BS		 439 return 0;
440}
441
525895ba
BS		 442static int
443validate_sync(struct nouveau_channel *chan, struct nouveau_bo *nvbo)
444{
445 struct nouveau_fence *fence = NULL;
446 int ret = 0;
447
448 spin_lock(&nvbo->bo.bdev->fence_lock);
449 if (nvbo->bo.sync_obj)
450 fence = nouveau_fence_ref(nvbo->bo.sync_obj);
451 spin_unlock(&nvbo->bo.bdev->fence_lock);
452
453 if (fence) {
454 ret = nouveau_fence_sync(fence, chan);
455 nouveau_fence_unref(&fence);
456 }
457
458 return ret;
459}
460
6ee73861 461static int
a84fa1a3
MS		 462validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli,
463 struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo,
464 uint64_t user_pbbo_ptr)
6ee73861 465{
ebb945a9 466 struct nouveau_drm *drm = chan->drm;
6ee73861
BS		 467 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
468 (void __force __user *)(uintptr_t)user_pbbo_ptr;
469 struct nouveau_bo *nvbo;
470 int ret, relocs = 0;
471
472 list_for_each_entry(nvbo, list, entry) {
473 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
6ee73861 474
525895ba 475 ret = validate_sync(chan, nvbo);
415e6186 476 if (unlikely(ret)) {
a84fa1a3 477 NV_ERROR(cli, "fail pre-validate sync\n");
415e6186 478 return ret;
6ee73861
BS		 479 }
480
481 ret = nouveau_gem_set_domain(nvbo->gem, b->read_domains,
482 b->write_domains,
483 b->valid_domains);
a1606a95 484 if (unlikely(ret)) {
a84fa1a3 485 NV_ERROR(cli, "fail set_domain\n");
6ee73861 486 return ret;
a1606a95 487 }
6ee73861 488
97a875cb 489 ret = nouveau_bo_validate(nvbo, true, false);
a1606a95 490 if (unlikely(ret)) {
938c40ed 491 if (ret != -ERESTARTSYS)
a84fa1a3 492 NV_ERROR(cli, "fail ttm_validate\n");
6ee73861 493 return ret;
a1606a95 494 }
6ee73861 495
525895ba 496 ret = validate_sync(chan, nvbo);
415e6186 497 if (unlikely(ret)) {
a84fa1a3 498 NV_ERROR(cli, "fail post-validate sync\n");
415e6186
BS		 499 return ret;
500 }
501
ebb945a9 502 if (nv_device(drm->device)->card_type < NV_50) {
a3fcd0a9
BS		 503 if (nvbo->bo.offset == b->presumed.offset &&
504 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
505 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
506 (nvbo->bo.mem.mem_type == TTM_PL_TT &&
507 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
508 continue;
509
510 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
511 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
512 else
513 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
514 b->presumed.offset = nvbo->bo.offset;
515 b->presumed.valid = 0;
516 relocs++;
517
518 if (DRM_COPY_TO_USER(&upbbo[nvbo->pbbo_index].presumed,
519 &b->presumed, sizeof(b->presumed)))
520 return -EFAULT;
521 }
6ee73861
BS		 522 }
523
524 return relocs;
525}
526
527static int
528nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
529 struct drm_file *file_priv,
530 struct drm_nouveau_gem_pushbuf_bo *pbbo,
531 uint64_t user_buffers, int nr_buffers,
532 struct validate_op *op, int *apply_relocs)
533{
a84fa1a3 534 struct nouveau_cli *cli = nouveau_cli(file_priv);
6ee73861
BS		 535 int ret, relocs = 0;
536
537 INIT_LIST_HEAD(&op->vram_list);
538 INIT_LIST_HEAD(&op->gart_list);
539 INIT_LIST_HEAD(&op->both_list);
540
6ee73861
BS		 541 if (nr_buffers == 0)
542 return 0;
543
544 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
a1606a95 545 if (unlikely(ret)) {
938c40ed 546 if (ret != -ERESTARTSYS)
a84fa1a3 547 NV_ERROR(cli, "validate_init\n");
6ee73861 548 return ret;
a1606a95 549 }
6ee73861 550
a84fa1a3 551 ret = validate_list(chan, cli, &op->vram_list, pbbo, user_buffers);
6ee73861 552 if (unlikely(ret < 0)) {
938c40ed 553 if (ret != -ERESTARTSYS)
a84fa1a3 554 NV_ERROR(cli, "validate vram_list\n");
6ee73861
BS		 555 validate_fini(op, NULL);
556 return ret;
557 }
558 relocs += ret;
559
a84fa1a3 560 ret = validate_list(chan, cli, &op->gart_list, pbbo, user_buffers);
6ee73861 561 if (unlikely(ret < 0)) {
938c40ed 562 if (ret != -ERESTARTSYS)
a84fa1a3 563 NV_ERROR(cli, "validate gart_list\n");
6ee73861
BS		 564 validate_fini(op, NULL);
565 return ret;
566 }
567 relocs += ret;
568
a84fa1a3 569 ret = validate_list(chan, cli, &op->both_list, pbbo, user_buffers);
6ee73861 570 if (unlikely(ret < 0)) {
938c40ed 571 if (ret != -ERESTARTSYS)
a84fa1a3 572 NV_ERROR(cli, "validate both_list\n");
6ee73861
BS		 573 validate_fini(op, NULL);
574 return ret;
575 }
576 relocs += ret;
577
578 *apply_relocs = relocs;
579 return 0;
580}
581
c859074e
ML		 582static inline void
583u_free(void *addr)
584{
585 if (!is_vmalloc_addr(addr))
586 kfree(addr);
587 else
588 vfree(addr);
589}
590
6ee73861
BS		 591static inline void *
592u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
593{
594 void *mem;
595 void __user *userptr = (void __force __user *)(uintptr_t)user;
596
c859074e
ML		 597 size *= nmemb;
598
599 mem = kmalloc(size, GFP_KERNEL | __GFP_NOWARN);
600 if (!mem)
601 mem = vmalloc(size);
6ee73861
BS		 602 if (!mem)
603 return ERR_PTR(-ENOMEM);
604
c859074e
ML		 605 if (DRM_COPY_FROM_USER(mem, userptr, size)) {
606 u_free(mem);
6ee73861
BS		 607 return ERR_PTR(-EFAULT);
608 }
609
610 return mem;
611}
612
613static int
a84fa1a3 614nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
a1606a95
BS		 615 struct drm_nouveau_gem_pushbuf *req,
616 struct drm_nouveau_gem_pushbuf_bo *bo)
6ee73861
BS		 617{
618 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
12f735b7
LB		 619 int ret = 0;
620 unsigned i;
6ee73861 621
a1606a95 622 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
6ee73861
BS		 623 if (IS_ERR(reloc))
624 return PTR_ERR(reloc);
625
a1606a95 626 for (i = 0; i < req->nr_relocs; i++) {
6ee73861
BS		 627 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
628 struct drm_nouveau_gem_pushbuf_bo *b;
a1606a95 629 struct nouveau_bo *nvbo;
6ee73861
BS		 630 uint32_t data;
631
a1606a95 632 if (unlikely(r->bo_index > req->nr_buffers)) {
a84fa1a3 633 NV_ERROR(cli, "reloc bo index invalid\n");
6ee73861
BS		 634 ret = -EINVAL;
635 break;
636 }
637
638 b = &bo[r->bo_index];
a1606a95 639 if (b->presumed.valid)
6ee73861
BS		 640 continue;
641
a1606a95 642 if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
a84fa1a3 643 NV_ERROR(cli, "reloc container bo index invalid\n");
a1606a95
BS		 644 ret = -EINVAL;
645 break;
646 }
647 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
648
649 if (unlikely(r->reloc_bo_offset + 4 >
650 nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
a84fa1a3 651 NV_ERROR(cli, "reloc outside of bo\n");
a1606a95
BS		 652 ret = -EINVAL;
653 break;
654 }
655
656 if (!nvbo->kmap.virtual) {
657 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
658 &nvbo->kmap);
659 if (ret) {
a84fa1a3 660 NV_ERROR(cli, "failed kmap for reloc\n");
a1606a95
BS		 661 break;
662 }
663 nvbo->validate_mapped = true;
664 }
665
6ee73861 666 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
a1606a95 667 data = b->presumed.offset + r->data;
6ee73861
BS		 668 else
669 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
a1606a95 670 data = (b->presumed.offset + r->data) >> 32;
6ee73861
BS		 671 else
672 data = r->data;
673
674 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
a1606a95 675 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
6ee73861
BS		 676 data |= r->tor;
677 else
678 data |= r->vor;
679 }
680
702adba2 681 spin_lock(&nvbo->bo.bdev->fence_lock);
a1606a95 682 ret = ttm_bo_wait(&nvbo->bo, false, false, false);
702adba2 683 spin_unlock(&nvbo->bo.bdev->fence_lock);
a1606a95 684 if (ret) {
a84fa1a3 685 NV_ERROR(cli, "reloc wait_idle failed: %d\n", ret);
a1606a95
BS		 686 break;
687 }
a1606a95
BS		 688
689 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
6ee73861
BS		 690 }
691
c859074e 692 u_free(reloc);
6ee73861
BS		 693 return ret;
694}
695
696int
697nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
698 struct drm_file *file_priv)
699{
ebb945a9 700 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
a84fa1a3 701 struct nouveau_cli *cli = nouveau_cli(file_priv);
ebb945a9
BS		 702 struct nouveau_abi16_chan *temp;
703 struct nouveau_drm *drm = nouveau_drm(dev);
6ee73861 704 struct drm_nouveau_gem_pushbuf *req = data;
a1606a95
BS		 705 struct drm_nouveau_gem_pushbuf_push *push;
706 struct drm_nouveau_gem_pushbuf_bo *bo;
ebb945a9 707 struct nouveau_channel *chan = NULL;
6ee73861 708 struct validate_op op;
6e86e041 709 struct nouveau_fence *fence = NULL;
a1606a95 710 int i, j, ret = 0, do_reloc = 0;
6ee73861 711
ebb945a9
BS		 712 if (unlikely(!abi16))
713 return -ENOMEM;
6ee73861 714
ebb945a9
BS		 715 list_for_each_entry(temp, &abi16->channels, head) {
716 if (temp->chan->handle == (NVDRM_CHAN | req->channel)) {
717 chan = temp->chan;
718 break;
719 }
720 }
6ee73861 721
ebb945a9
BS		 722 if (!chan)
723 return nouveau_abi16_put(abi16, -ENOENT);
724
725 req->vram_available = drm->gem.vram_available;
726 req->gart_available = drm->gem.gart_available;
a1606a95
BS		 727 if (unlikely(req->nr_push == 0))
728 goto out_next;
6ee73861 729
a1606a95 730 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
a84fa1a3 731 NV_ERROR(cli, "pushbuf push count exceeds limit: %d max %d\n",
a1606a95 732 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
ebb945a9 733 return nouveau_abi16_put(abi16, -EINVAL);
6ee73861
BS		 734 }
735
a1606a95 736 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
a84fa1a3 737 NV_ERROR(cli, "pushbuf bo count exceeds limit: %d max %d\n",
a1606a95 738 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
ebb945a9 739 return nouveau_abi16_put(abi16, -EINVAL);
6ee73861
BS		 740 }
741
a1606a95 742 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
a84fa1a3 743 NV_ERROR(cli, "pushbuf reloc count exceeds limit: %d max %d\n",
a1606a95 744 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
ebb945a9 745 return nouveau_abi16_put(abi16, -EINVAL);
6ee73861
BS		 746 }
747
a1606a95 748 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
ebb945a9
BS		 749 if (IS_ERR(push))
750 return nouveau_abi16_put(abi16, PTR_ERR(push));
a1606a95 751
6ee73861 752 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
a1606a95 753 if (IS_ERR(bo)) {
c859074e 754 u_free(push);
ebb945a9 755 return nouveau_abi16_put(abi16, PTR_ERR(bo));
a1606a95 756 }
6ee73861 757
accf9496 758 /* Ensure all push buffers are on validate list */
415e6186
BS		 759 for (i = 0; i < req->nr_push; i++) {
760 if (push[i].bo_index >= req->nr_buffers) {
a84fa1a3 761 NV_ERROR(cli, "push %d buffer not in list\n", i);
415e6186 762 ret = -EINVAL;
7fa0cba2 763 goto out_prevalid;
415e6186 764 }
415e6186
BS		 765 }
766
6ee73861
BS		 767 /* Validate buffer list */
768 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
769 req->nr_buffers, &op, &do_reloc);
770 if (ret) {
938c40ed 771 if (ret != -ERESTARTSYS)
a84fa1a3 772 NV_ERROR(cli, "validate: %d\n", ret);
7fa0cba2 773 goto out_prevalid;
6ee73861
BS		 774 }
775
6ee73861
BS		 776 /* Apply any relocations that are required */
777 if (do_reloc) {
a84fa1a3 778 ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo);
6ee73861 779 if (ret) {
a84fa1a3 780 NV_ERROR(cli, "reloc apply: %d\n", ret);
6ee73861
BS		 781 goto out;
782 }
6ee73861 783 }
6ee73861 784
9a391ad8 785 if (chan->dma.ib_max) {
5e120f6e 786 ret = nouveau_dma_wait(chan, req->nr_push + 1, 16);
6ee73861 787 if (ret) {
a84fa1a3 788 NV_ERROR(cli, "nv50cal_space: %d\n", ret);
6ee73861
BS		 789 goto out;
790 }
6ee73861 791
a1606a95
BS		 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
796 nv50_dma_push(chan, nvbo, push[i].offset,
797 push[i].length);
798 }
9a391ad8 799 } else
ebb945a9 800 if (nv_device(drm->device)->chipset >= 0x25) {
a1606a95 801 ret = RING_SPACE(chan, req->nr_push * 2);
6ee73861 802 if (ret) {
a84fa1a3 803 NV_ERROR(cli, "cal_space: %d\n", ret);
6ee73861
BS		 804 goto out;
805 }
a1606a95
BS		 806
807 for (i = 0; i < req->nr_push; i++) {
808 struct nouveau_bo *nvbo = (void *)(unsigned long)
809 bo[push[i].bo_index].user_priv;
a1606a95 810
3a92d37e 811 OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2);
a1606a95
BS		 812 OUT_RING(chan, 0);
813 }
6ee73861 814 } else {
a1606a95 815 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
6ee73861 816 if (ret) {
a84fa1a3 817 NV_ERROR(cli, "jmp_space: %d\n", ret);
6ee73861
BS		 818 goto out;
819 }
6ee73861 820
a1606a95
BS		 821 for (i = 0; i < req->nr_push; i++) {
822 struct nouveau_bo *nvbo = (void *)(unsigned long)
823 bo[push[i].bo_index].user_priv;
a1606a95
BS		 824 uint32_t cmd;
825
ebb945a9 826 cmd = chan->push.vma.offset + ((chan->dma.cur + 2) << 2);
a1606a95
BS		 827 cmd |= 0x20000000;
828 if (unlikely(cmd != req->suffix0)) {
829 if (!nvbo->kmap.virtual) {
830 ret = ttm_bo_kmap(&nvbo->bo, 0,
831 nvbo->bo.mem.
832 num_pages,
833 &nvbo->kmap);
834 if (ret) {
835 WIND_RING(chan);
836 goto out;
837 }
838 nvbo->validate_mapped = true;
839 }
840
841 nouveau_bo_wr32(nvbo, (push[i].offset +
842 push[i].length - 8) / 4, cmd);
843 }
844
3a92d37e
BS		 845 OUT_RING(chan, 0x20000000 |
846 (nvbo->bo.offset + push[i].offset));
6ee73861 847 OUT_RING(chan, 0);
a1606a95
BS		 848 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
849 OUT_RING(chan, 0);
850 }
6ee73861
BS		 851 }
852
264ce192 853 ret = nouveau_fence_new(chan, false, &fence);
6ee73861 854 if (ret) {
a84fa1a3 855 NV_ERROR(cli, "error fencing pushbuf: %d\n", ret);
6ee73861
BS		 856 WIND_RING(chan);
857 goto out;
858 }
859
860out:
234896a7 861 validate_fini(&op, fence);
382d62e5 862 nouveau_fence_unref(&fence);
7fa0cba2
MS		 863
864out_prevalid:
c859074e
ML		 865 u_free(bo);
866 u_free(push);
6ee73861
BS		 867
868out_next:
9a391ad8
BS		 869 if (chan->dma.ib_max) {
870 req->suffix0 = 0x00000000;
871 req->suffix1 = 0x00000000;
872 } else
ebb945a9 873 if (nv_device(drm->device)->chipset >= 0x25) {
6ee73861
BS		 874 req->suffix0 = 0x00020000;
875 req->suffix1 = 0x00000000;
876 } else {
877 req->suffix0 = 0x20000000 |
ebb945a9 878 (chan->push.vma.offset + ((chan->dma.cur + 2) << 2));
6ee73861
BS		 879 req->suffix1 = 0x00000000;
880 }
881
ebb945a9 882 return nouveau_abi16_put(abi16, ret);
6ee73861
BS		 883}
884
6ee73861
BS		 885static inline uint32_t
886domain_to_ttm(struct nouveau_bo *nvbo, uint32_t domain)
887{
888 uint32_t flags = 0;
889
890 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
891 flags |= TTM_PL_FLAG_VRAM;
892 if (domain & NOUVEAU_GEM_DOMAIN_GART)
893 flags |= TTM_PL_FLAG_TT;
894
895 return flags;
896}
897
6ee73861
BS		 898int
899nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
900 struct drm_file *file_priv)
901{
902 struct drm_nouveau_gem_cpu_prep *req = data;
903 struct drm_gem_object *gem;
904 struct nouveau_bo *nvbo;
905 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
906 int ret = -EINVAL;
907
6ee73861
BS		 908 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
909 if (!gem)
bf79cb91 910 return -ENOENT;
6ee73861
BS		 911 nvbo = nouveau_gem_object(gem);
912
21e86c1c
BS		 913 spin_lock(&nvbo->bo.bdev->fence_lock);
914 ret = ttm_bo_wait(&nvbo->bo, true, true, no_wait);
915 spin_unlock(&nvbo->bo.bdev->fence_lock);
bc9025bd 916 drm_gem_object_unreference_unlocked(gem);
6ee73861
BS		 917 return ret;
918}
919
920int
921nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
922 struct drm_file *file_priv)
923{
21e86c1c 924 return 0;
6ee73861
BS		 925}
926
927int
928nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
929 struct drm_file *file_priv)
930{
931 struct drm_nouveau_gem_info *req = data;
932 struct drm_gem_object *gem;
933 int ret;
934
6ee73861
BS		 935 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
936 if (!gem)
bf79cb91 937 return -ENOENT;
6ee73861 938
e758a311 939 ret = nouveau_gem_info(file_priv, gem, req);
bc9025bd 940 drm_gem_object_unreference_unlocked(gem);
6ee73861
BS		 941 return ret;
942}
943
Linux kernel - Deliverables
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