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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 | |
37 | int | |
38 | nouveau_gem_object_new(struct drm_gem_object *gem) | |
39 | { | |
40 | return 0; | |
41 | } | |
42 | ||
43 | void | |
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 | ||
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 |
62 | int |
63 | nouveau_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 | ||
94 | out: | |
95 | ttm_bo_unreserve(&nvbo->bo); | |
96 | return ret; | |
639212d0 BS |
97 | } |
98 | ||
c4c7044f BS |
99 | static void |
100 | nouveau_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 | ||
108 | static void | |
109 | nouveau_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 |
134 | void |
135 | nouveau_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 | 157 | int |
f6d4e621 BS |
158 | nouveau_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 | ||
200 | static int | |
e758a311 BS |
201 | nouveau_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 |
229 | int |
230 | nouveau_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 | ||
265 | static int | |
266 | nouveau_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 | ||
303 | struct 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 | ||
310 | static void | |
ecff665f ML |
311 | validate_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 | ||
334 | static void | |
ecff665f | 335 | validate_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 | ||
342 | static void | |
343 | validate_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 | ||
349 | static int | |
350 | validate_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 |
361 | retry: |
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 |
442 | static int |
443 | validate_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 | 461 | static int |
a84fa1a3 MS |
462 | validate_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 | ||
527 | static int | |
528 | nouveau_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 |
582 | static inline void |
583 | u_free(void *addr) | |
584 | { | |
585 | if (!is_vmalloc_addr(addr)) | |
586 | kfree(addr); | |
587 | else | |
588 | vfree(addr); | |
589 | } | |
590 | ||
6ee73861 BS |
591 | static inline void * |
592 | u_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 | ||
613 | static int | |
a84fa1a3 | 614 | nouveau_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 | ||
696 | int | |
697 | nouveau_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 | ||
860 | out: | |
234896a7 | 861 | validate_fini(&op, fence); |
382d62e5 | 862 | nouveau_fence_unref(&fence); |
7fa0cba2 MS |
863 | |
864 | out_prevalid: | |
c859074e ML |
865 | u_free(bo); |
866 | u_free(push); | |
6ee73861 BS |
867 | |
868 | out_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 |
885 | static inline uint32_t |
886 | domain_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 |
898 | int |
899 | nouveau_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 | ||
920 | int | |
921 | nouveau_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 | ||
927 | int | |
928 | nouveau_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 |