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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 | 27 | #include "nouveau_drm.h" |
6ee73861 | 28 | #include "nouveau_dma.h" |
d375e7d5 | 29 | #include "nouveau_fence.h" |
ebb945a9 | 30 | #include "nouveau_abi16.h" |
6ee73861 | 31 | |
ebb945a9 BS |
32 | #include "nouveau_ttm.h" |
33 | #include "nouveau_gem.h" | |
6ee73861 | 34 | |
6ee73861 BS |
35 | void |
36 | nouveau_gem_object_del(struct drm_gem_object *gem) | |
37 | { | |
55fb74ad | 38 | struct nouveau_bo *nvbo = nouveau_gem_object(gem); |
6ee73861 BS |
39 | struct ttm_buffer_object *bo = &nvbo->bo; |
40 | ||
22b33e8e DA |
41 | if (gem->import_attach) |
42 | drm_prime_gem_destroy(gem, nvbo->bo.sg); | |
43 | ||
fd632aa3 | 44 | drm_gem_object_release(gem); |
55fb74ad DH |
45 | |
46 | /* reset filp so nouveau_bo_del_ttm() can test for it */ | |
47 | gem->filp = NULL; | |
48 | ttm_bo_unref(&bo); | |
6ee73861 BS |
49 | } |
50 | ||
639212d0 BS |
51 | int |
52 | nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv) | |
53 | { | |
ebb945a9 | 54 | struct nouveau_cli *cli = nouveau_cli(file_priv); |
2fd3db6f BS |
55 | struct nouveau_bo *nvbo = nouveau_gem_object(gem); |
56 | struct nouveau_vma *vma; | |
57 | int ret; | |
639212d0 | 58 | |
3ee6f5b5 | 59 | if (!cli->vm) |
639212d0 BS |
60 | return 0; |
61 | ||
ee3939e0 | 62 | ret = ttm_bo_reserve(&nvbo->bo, false, false, false, NULL); |
2fd3db6f BS |
63 | if (ret) |
64 | return ret; | |
65 | ||
3ee6f5b5 | 66 | vma = nouveau_bo_vma_find(nvbo, cli->vm); |
2fd3db6f BS |
67 | if (!vma) { |
68 | vma = kzalloc(sizeof(*vma), GFP_KERNEL); | |
69 | if (!vma) { | |
70 | ret = -ENOMEM; | |
71 | goto out; | |
72 | } | |
73 | ||
3ee6f5b5 | 74 | ret = nouveau_bo_vma_add(nvbo, cli->vm, vma); |
2fd3db6f BS |
75 | if (ret) { |
76 | kfree(vma); | |
77 | goto out; | |
78 | } | |
79 | } else { | |
80 | vma->refcount++; | |
81 | } | |
82 | ||
83 | out: | |
84 | ttm_bo_unreserve(&nvbo->bo); | |
85 | return ret; | |
639212d0 BS |
86 | } |
87 | ||
c4c7044f BS |
88 | static void |
89 | nouveau_gem_object_delete(void *data) | |
90 | { | |
91 | struct nouveau_vma *vma = data; | |
92 | nouveau_vm_unmap(vma); | |
93 | nouveau_vm_put(vma); | |
94 | kfree(vma); | |
95 | } | |
96 | ||
97 | static void | |
98 | nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nouveau_vma *vma) | |
99 | { | |
100 | const bool mapped = nvbo->bo.mem.mem_type != TTM_PL_SYSTEM; | |
101 | struct nouveau_fence *fence = NULL; | |
102 | ||
103 | list_del(&vma->head); | |
104 | ||
105 | if (mapped) { | |
106 | spin_lock(&nvbo->bo.bdev->fence_lock); | |
5d216f60 | 107 | fence = nouveau_fence_ref(nvbo->bo.sync_obj); |
c4c7044f BS |
108 | spin_unlock(&nvbo->bo.bdev->fence_lock); |
109 | } | |
110 | ||
111 | if (fence) { | |
112 | nouveau_fence_work(fence, nouveau_gem_object_delete, vma); | |
113 | } else { | |
114 | if (mapped) | |
115 | nouveau_vm_unmap(vma); | |
116 | nouveau_vm_put(vma); | |
117 | kfree(vma); | |
118 | } | |
119 | nouveau_fence_unref(&fence); | |
120 | } | |
121 | ||
639212d0 BS |
122 | void |
123 | nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv) | |
124 | { | |
ebb945a9 | 125 | struct nouveau_cli *cli = nouveau_cli(file_priv); |
2fd3db6f BS |
126 | struct nouveau_bo *nvbo = nouveau_gem_object(gem); |
127 | struct nouveau_vma *vma; | |
128 | int ret; | |
639212d0 | 129 | |
3ee6f5b5 | 130 | if (!cli->vm) |
639212d0 | 131 | return; |
2fd3db6f | 132 | |
ee3939e0 | 133 | ret = ttm_bo_reserve(&nvbo->bo, false, false, false, NULL); |
2fd3db6f BS |
134 | if (ret) |
135 | return; | |
136 | ||
3ee6f5b5 | 137 | vma = nouveau_bo_vma_find(nvbo, cli->vm); |
2fd3db6f | 138 | if (vma) { |
c4c7044f BS |
139 | if (--vma->refcount == 0) |
140 | nouveau_gem_object_unmap(nvbo, vma); | |
2fd3db6f BS |
141 | } |
142 | ttm_bo_unreserve(&nvbo->bo); | |
639212d0 BS |
143 | } |
144 | ||
6ee73861 | 145 | int |
f6d4e621 BS |
146 | nouveau_gem_new(struct drm_device *dev, int size, int align, uint32_t domain, |
147 | uint32_t tile_mode, uint32_t tile_flags, | |
148 | struct nouveau_bo **pnvbo) | |
6ee73861 | 149 | { |
ebb945a9 | 150 | struct nouveau_drm *drm = nouveau_drm(dev); |
6ee73861 | 151 | struct nouveau_bo *nvbo; |
6ba9a683 | 152 | u32 flags = 0; |
6ee73861 BS |
153 | int ret; |
154 | ||
6ba9a683 BS |
155 | if (domain & NOUVEAU_GEM_DOMAIN_VRAM) |
156 | flags |= TTM_PL_FLAG_VRAM; | |
157 | if (domain & NOUVEAU_GEM_DOMAIN_GART) | |
158 | flags |= TTM_PL_FLAG_TT; | |
159 | if (!flags || domain & NOUVEAU_GEM_DOMAIN_CPU) | |
160 | flags |= TTM_PL_FLAG_SYSTEM; | |
161 | ||
7375c95b | 162 | ret = nouveau_bo_new(dev, size, align, flags, tile_mode, |
22b33e8e | 163 | tile_flags, NULL, pnvbo); |
6ee73861 BS |
164 | if (ret) |
165 | return ret; | |
166 | nvbo = *pnvbo; | |
167 | ||
db5c8e29 BS |
168 | /* we restrict allowed domains on nv50+ to only the types |
169 | * that were requested at creation time. not possibly on | |
170 | * earlier chips without busting the ABI. | |
171 | */ | |
172 | nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM | | |
173 | NOUVEAU_GEM_DOMAIN_GART; | |
967e7bde | 174 | if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) |
db5c8e29 BS |
175 | nvbo->valid_domains &= domain; |
176 | ||
55fb74ad DH |
177 | /* Initialize the embedded gem-object. We return a single gem-reference |
178 | * to the caller, instead of a normal nouveau_bo ttm reference. */ | |
179 | ret = drm_gem_object_init(dev, &nvbo->gem, nvbo->bo.mem.size); | |
180 | if (ret) { | |
6ee73861 BS |
181 | nouveau_bo_ref(NULL, pnvbo); |
182 | return -ENOMEM; | |
183 | } | |
184 | ||
55fb74ad | 185 | nvbo->bo.persistent_swap_storage = nvbo->gem.filp; |
6ee73861 BS |
186 | return 0; |
187 | } | |
188 | ||
189 | static int | |
e758a311 BS |
190 | nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem, |
191 | struct drm_nouveau_gem_info *rep) | |
6ee73861 | 192 | { |
ebb945a9 | 193 | struct nouveau_cli *cli = nouveau_cli(file_priv); |
6ee73861 | 194 | struct nouveau_bo *nvbo = nouveau_gem_object(gem); |
e758a311 | 195 | struct nouveau_vma *vma; |
6ee73861 BS |
196 | |
197 | if (nvbo->bo.mem.mem_type == TTM_PL_TT) | |
198 | rep->domain = NOUVEAU_GEM_DOMAIN_GART; | |
199 | else | |
200 | rep->domain = NOUVEAU_GEM_DOMAIN_VRAM; | |
201 | ||
e758a311 | 202 | rep->offset = nvbo->bo.offset; |
3ee6f5b5 BS |
203 | if (cli->vm) { |
204 | vma = nouveau_bo_vma_find(nvbo, cli->vm); | |
e758a311 BS |
205 | if (!vma) |
206 | return -EINVAL; | |
207 | ||
208 | rep->offset = vma->offset; | |
209 | } | |
210 | ||
6ee73861 | 211 | rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT; |
72525b3f | 212 | rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.vma_node); |
6ee73861 BS |
213 | rep->tile_mode = nvbo->tile_mode; |
214 | rep->tile_flags = nvbo->tile_flags; | |
215 | return 0; | |
216 | } | |
217 | ||
6ee73861 BS |
218 | int |
219 | nouveau_gem_ioctl_new(struct drm_device *dev, void *data, | |
220 | struct drm_file *file_priv) | |
221 | { | |
ebb945a9 | 222 | struct nouveau_drm *drm = nouveau_drm(dev); |
a84fa1a3 | 223 | struct nouveau_cli *cli = nouveau_cli(file_priv); |
967e7bde | 224 | struct nouveau_fb *pfb = nvkm_fb(&drm->device); |
6ee73861 BS |
225 | struct drm_nouveau_gem_new *req = data; |
226 | struct nouveau_bo *nvbo = NULL; | |
6ee73861 BS |
227 | int ret = 0; |
228 | ||
ebb945a9 | 229 | if (!pfb->memtype_valid(pfb, req->info.tile_flags)) { |
fa2bade9 | 230 | NV_PRINTK(error, cli, "bad page flags: 0x%08x\n", req->info.tile_flags); |
6ee73861 | 231 | return -EINVAL; |
60d2a88a | 232 | } |
6ee73861 | 233 | |
f6d4e621 | 234 | ret = nouveau_gem_new(dev, req->info.size, req->align, |
6ba9a683 BS |
235 | req->info.domain, req->info.tile_mode, |
236 | req->info.tile_flags, &nvbo); | |
6ee73861 BS |
237 | if (ret) |
238 | return ret; | |
239 | ||
55fb74ad | 240 | ret = drm_gem_handle_create(file_priv, &nvbo->gem, &req->info.handle); |
e758a311 | 241 | if (ret == 0) { |
55fb74ad | 242 | ret = nouveau_gem_info(file_priv, &nvbo->gem, &req->info); |
e758a311 BS |
243 | if (ret) |
244 | drm_gem_handle_delete(file_priv, req->info.handle); | |
245 | } | |
246 | ||
29d08b3e | 247 | /* drop reference from allocate - handle holds it now */ |
55fb74ad | 248 | drm_gem_object_unreference_unlocked(&nvbo->gem); |
6ee73861 BS |
249 | return ret; |
250 | } | |
251 | ||
252 | static int | |
253 | nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains, | |
254 | uint32_t write_domains, uint32_t valid_domains) | |
255 | { | |
55fb74ad | 256 | struct nouveau_bo *nvbo = nouveau_gem_object(gem); |
6ee73861 | 257 | struct ttm_buffer_object *bo = &nvbo->bo; |
db5c8e29 | 258 | uint32_t domains = valid_domains & nvbo->valid_domains & |
78ad0f7b FJ |
259 | (write_domains ? write_domains : read_domains); |
260 | uint32_t pref_flags = 0, valid_flags = 0; | |
6ee73861 | 261 | |
78ad0f7b | 262 | if (!domains) |
6ee73861 BS |
263 | return -EINVAL; |
264 | ||
78ad0f7b FJ |
265 | if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) |
266 | valid_flags |= TTM_PL_FLAG_VRAM; | |
267 | ||
268 | if (valid_domains & NOUVEAU_GEM_DOMAIN_GART) | |
269 | valid_flags |= TTM_PL_FLAG_TT; | |
270 | ||
271 | if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) && | |
272 | bo->mem.mem_type == TTM_PL_VRAM) | |
273 | pref_flags |= TTM_PL_FLAG_VRAM; | |
274 | ||
275 | else if ((domains & NOUVEAU_GEM_DOMAIN_GART) && | |
276 | bo->mem.mem_type == TTM_PL_TT) | |
277 | pref_flags |= TTM_PL_FLAG_TT; | |
278 | ||
279 | else if (domains & NOUVEAU_GEM_DOMAIN_VRAM) | |
280 | pref_flags |= TTM_PL_FLAG_VRAM; | |
281 | ||
282 | else | |
283 | pref_flags |= TTM_PL_FLAG_TT; | |
284 | ||
285 | nouveau_bo_placement_set(nvbo, pref_flags, valid_flags); | |
6ee73861 | 286 | |
6ee73861 BS |
287 | return 0; |
288 | } | |
289 | ||
290 | struct validate_op { | |
6ee73861 BS |
291 | struct list_head vram_list; |
292 | struct list_head gart_list; | |
293 | struct list_head both_list; | |
ecff665f | 294 | struct ww_acquire_ctx ticket; |
6ee73861 BS |
295 | }; |
296 | ||
297 | static void | |
ecff665f ML |
298 | validate_fini_list(struct list_head *list, struct nouveau_fence *fence, |
299 | struct ww_acquire_ctx *ticket) | |
6ee73861 BS |
300 | { |
301 | struct list_head *entry, *tmp; | |
302 | struct nouveau_bo *nvbo; | |
303 | ||
304 | list_for_each_safe(entry, tmp, list) { | |
305 | nvbo = list_entry(entry, struct nouveau_bo, entry); | |
332b242f | 306 | |
9360bd11 BS |
307 | if (likely(fence)) |
308 | nouveau_bo_fence(nvbo, fence); | |
6ee73861 | 309 | |
a1606a95 BS |
310 | if (unlikely(nvbo->validate_mapped)) { |
311 | ttm_bo_kunmap(&nvbo->kmap); | |
312 | nvbo->validate_mapped = false; | |
313 | } | |
314 | ||
6ee73861 BS |
315 | list_del(&nvbo->entry); |
316 | nvbo->reserved_by = NULL; | |
ecff665f | 317 | ttm_bo_unreserve_ticket(&nvbo->bo, ticket); |
55fb74ad | 318 | drm_gem_object_unreference_unlocked(&nvbo->gem); |
6ee73861 BS |
319 | } |
320 | } | |
321 | ||
322 | static void | |
ecff665f | 323 | validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence) |
6ee73861 | 324 | { |
ecff665f ML |
325 | validate_fini_list(&op->vram_list, fence, &op->ticket); |
326 | validate_fini_list(&op->gart_list, fence, &op->ticket); | |
327 | validate_fini_list(&op->both_list, fence, &op->ticket); | |
328 | } | |
329 | ||
330 | static void | |
331 | validate_fini(struct validate_op *op, struct nouveau_fence *fence) | |
332 | { | |
333 | validate_fini_no_ticket(op, fence); | |
334 | ww_acquire_fini(&op->ticket); | |
6ee73861 BS |
335 | } |
336 | ||
337 | static int | |
338 | validate_init(struct nouveau_channel *chan, struct drm_file *file_priv, | |
339 | struct drm_nouveau_gem_pushbuf_bo *pbbo, | |
340 | int nr_buffers, struct validate_op *op) | |
341 | { | |
a84fa1a3 | 342 | struct nouveau_cli *cli = nouveau_cli(file_priv); |
ebb945a9 | 343 | struct drm_device *dev = chan->drm->dev; |
6ee73861 BS |
344 | int trycnt = 0; |
345 | int ret, i; | |
c354c893 | 346 | struct nouveau_bo *res_bo = NULL; |
6ee73861 | 347 | |
ecff665f | 348 | ww_acquire_init(&op->ticket, &reservation_ww_class); |
6ee73861 BS |
349 | retry: |
350 | if (++trycnt > 100000) { | |
fa2bade9 | 351 | NV_PRINTK(error, cli, "%s failed and gave up.\n", __func__); |
6ee73861 BS |
352 | return -EINVAL; |
353 | } | |
354 | ||
355 | for (i = 0; i < nr_buffers; i++) { | |
356 | struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i]; | |
357 | struct drm_gem_object *gem; | |
358 | struct nouveau_bo *nvbo; | |
359 | ||
360 | gem = drm_gem_object_lookup(dev, file_priv, b->handle); | |
361 | if (!gem) { | |
fa2bade9 | 362 | NV_PRINTK(error, cli, "Unknown handle 0x%08x\n", b->handle); |
ecff665f | 363 | ww_acquire_done(&op->ticket); |
6ee73861 | 364 | validate_fini(op, NULL); |
bf79cb91 | 365 | return -ENOENT; |
6ee73861 | 366 | } |
55fb74ad | 367 | nvbo = nouveau_gem_object(gem); |
c354c893 ML |
368 | if (nvbo == res_bo) { |
369 | res_bo = NULL; | |
370 | drm_gem_object_unreference_unlocked(gem); | |
371 | continue; | |
372 | } | |
6ee73861 BS |
373 | |
374 | if (nvbo->reserved_by && nvbo->reserved_by == file_priv) { | |
fa2bade9 | 375 | NV_PRINTK(error, cli, "multiple instances of buffer %d on " |
6ee73861 | 376 | "validation list\n", b->handle); |
5086f69e | 377 | drm_gem_object_unreference_unlocked(gem); |
ecff665f | 378 | ww_acquire_done(&op->ticket); |
6ee73861 BS |
379 | validate_fini(op, NULL); |
380 | return -EINVAL; | |
381 | } | |
382 | ||
ecff665f | 383 | ret = ttm_bo_reserve(&nvbo->bo, true, false, true, &op->ticket); |
6ee73861 | 384 | if (ret) { |
ecff665f | 385 | validate_fini_no_ticket(op, NULL); |
5e338405 | 386 | if (unlikely(ret == -EDEADLK)) { |
c354c893 | 387 | ret = ttm_bo_reserve_slowpath(&nvbo->bo, true, |
ecff665f | 388 | &op->ticket); |
c354c893 ML |
389 | if (!ret) |
390 | res_bo = nvbo; | |
391 | } | |
938c40ed | 392 | if (unlikely(ret)) { |
ecff665f ML |
393 | ww_acquire_done(&op->ticket); |
394 | ww_acquire_fini(&op->ticket); | |
c354c893 | 395 | drm_gem_object_unreference_unlocked(gem); |
938c40ed | 396 | if (ret != -ERESTARTSYS) |
fa2bade9 | 397 | NV_PRINTK(error, cli, "fail reserve\n"); |
6ee73861 | 398 | return ret; |
a1606a95 | 399 | } |
6ee73861 BS |
400 | } |
401 | ||
a1606a95 | 402 | b->user_priv = (uint64_t)(unsigned long)nvbo; |
6ee73861 BS |
403 | nvbo->reserved_by = file_priv; |
404 | nvbo->pbbo_index = i; | |
405 | if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) && | |
406 | (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)) | |
407 | list_add_tail(&nvbo->entry, &op->both_list); | |
408 | else | |
409 | if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) | |
410 | list_add_tail(&nvbo->entry, &op->vram_list); | |
411 | else | |
412 | if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART) | |
413 | list_add_tail(&nvbo->entry, &op->gart_list); | |
414 | else { | |
fa2bade9 | 415 | NV_PRINTK(error, cli, "invalid valid domains: 0x%08x\n", |
6ee73861 | 416 | b->valid_domains); |
0208843d | 417 | list_add_tail(&nvbo->entry, &op->both_list); |
ecff665f | 418 | ww_acquire_done(&op->ticket); |
6ee73861 BS |
419 | validate_fini(op, NULL); |
420 | return -EINVAL; | |
421 | } | |
c354c893 ML |
422 | if (nvbo == res_bo) |
423 | goto retry; | |
6ee73861 BS |
424 | } |
425 | ||
ecff665f | 426 | ww_acquire_done(&op->ticket); |
6ee73861 BS |
427 | return 0; |
428 | } | |
429 | ||
525895ba BS |
430 | static int |
431 | validate_sync(struct nouveau_channel *chan, struct nouveau_bo *nvbo) | |
432 | { | |
433 | struct nouveau_fence *fence = NULL; | |
434 | int ret = 0; | |
435 | ||
436 | spin_lock(&nvbo->bo.bdev->fence_lock); | |
5d216f60 | 437 | fence = nouveau_fence_ref(nvbo->bo.sync_obj); |
525895ba BS |
438 | spin_unlock(&nvbo->bo.bdev->fence_lock); |
439 | ||
440 | if (fence) { | |
441 | ret = nouveau_fence_sync(fence, chan); | |
442 | nouveau_fence_unref(&fence); | |
443 | } | |
444 | ||
445 | return ret; | |
446 | } | |
447 | ||
6ee73861 | 448 | static int |
a84fa1a3 MS |
449 | validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli, |
450 | struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo, | |
451 | uint64_t user_pbbo_ptr) | |
6ee73861 | 452 | { |
ebb945a9 | 453 | struct nouveau_drm *drm = chan->drm; |
6ee73861 BS |
454 | struct drm_nouveau_gem_pushbuf_bo __user *upbbo = |
455 | (void __force __user *)(uintptr_t)user_pbbo_ptr; | |
456 | struct nouveau_bo *nvbo; | |
457 | int ret, relocs = 0; | |
458 | ||
459 | list_for_each_entry(nvbo, list, entry) { | |
460 | struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index]; | |
6ee73861 | 461 | |
55fb74ad | 462 | ret = nouveau_gem_set_domain(&nvbo->gem, b->read_domains, |
6ee73861 BS |
463 | b->write_domains, |
464 | b->valid_domains); | |
a1606a95 | 465 | if (unlikely(ret)) { |
fa2bade9 | 466 | NV_PRINTK(error, cli, "fail set_domain\n"); |
6ee73861 | 467 | return ret; |
a1606a95 | 468 | } |
6ee73861 | 469 | |
97a875cb | 470 | ret = nouveau_bo_validate(nvbo, true, false); |
a1606a95 | 471 | if (unlikely(ret)) { |
938c40ed | 472 | if (ret != -ERESTARTSYS) |
fa2bade9 | 473 | NV_PRINTK(error, cli, "fail ttm_validate\n"); |
6ee73861 | 474 | return ret; |
a1606a95 | 475 | } |
6ee73861 | 476 | |
525895ba | 477 | ret = validate_sync(chan, nvbo); |
415e6186 | 478 | if (unlikely(ret)) { |
fa2bade9 | 479 | NV_PRINTK(error, cli, "fail post-validate sync\n"); |
415e6186 BS |
480 | return ret; |
481 | } | |
482 | ||
967e7bde | 483 | if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) { |
a3fcd0a9 BS |
484 | if (nvbo->bo.offset == b->presumed.offset && |
485 | ((nvbo->bo.mem.mem_type == TTM_PL_VRAM && | |
486 | b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) || | |
487 | (nvbo->bo.mem.mem_type == TTM_PL_TT && | |
488 | b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART))) | |
489 | continue; | |
490 | ||
491 | if (nvbo->bo.mem.mem_type == TTM_PL_TT) | |
492 | b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART; | |
493 | else | |
494 | b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM; | |
495 | b->presumed.offset = nvbo->bo.offset; | |
496 | b->presumed.valid = 0; | |
497 | relocs++; | |
498 | ||
1d6ac185 | 499 | if (copy_to_user(&upbbo[nvbo->pbbo_index].presumed, |
a3fcd0a9 BS |
500 | &b->presumed, sizeof(b->presumed))) |
501 | return -EFAULT; | |
502 | } | |
6ee73861 BS |
503 | } |
504 | ||
505 | return relocs; | |
506 | } | |
507 | ||
508 | static int | |
509 | nouveau_gem_pushbuf_validate(struct nouveau_channel *chan, | |
510 | struct drm_file *file_priv, | |
511 | struct drm_nouveau_gem_pushbuf_bo *pbbo, | |
512 | uint64_t user_buffers, int nr_buffers, | |
513 | struct validate_op *op, int *apply_relocs) | |
514 | { | |
a84fa1a3 | 515 | struct nouveau_cli *cli = nouveau_cli(file_priv); |
6ee73861 BS |
516 | int ret, relocs = 0; |
517 | ||
518 | INIT_LIST_HEAD(&op->vram_list); | |
519 | INIT_LIST_HEAD(&op->gart_list); | |
520 | INIT_LIST_HEAD(&op->both_list); | |
521 | ||
6ee73861 BS |
522 | if (nr_buffers == 0) |
523 | return 0; | |
524 | ||
525 | ret = validate_init(chan, file_priv, pbbo, nr_buffers, op); | |
a1606a95 | 526 | if (unlikely(ret)) { |
938c40ed | 527 | if (ret != -ERESTARTSYS) |
fa2bade9 | 528 | NV_PRINTK(error, cli, "validate_init\n"); |
6ee73861 | 529 | return ret; |
a1606a95 | 530 | } |
6ee73861 | 531 | |
a84fa1a3 | 532 | ret = validate_list(chan, cli, &op->vram_list, pbbo, user_buffers); |
6ee73861 | 533 | if (unlikely(ret < 0)) { |
938c40ed | 534 | if (ret != -ERESTARTSYS) |
fa2bade9 | 535 | NV_PRINTK(error, cli, "validate vram_list\n"); |
6ee73861 BS |
536 | validate_fini(op, NULL); |
537 | return ret; | |
538 | } | |
539 | relocs += ret; | |
540 | ||
a84fa1a3 | 541 | ret = validate_list(chan, cli, &op->gart_list, pbbo, user_buffers); |
6ee73861 | 542 | if (unlikely(ret < 0)) { |
938c40ed | 543 | if (ret != -ERESTARTSYS) |
fa2bade9 | 544 | NV_PRINTK(error, cli, "validate gart_list\n"); |
6ee73861 BS |
545 | validate_fini(op, NULL); |
546 | return ret; | |
547 | } | |
548 | relocs += ret; | |
549 | ||
a84fa1a3 | 550 | ret = validate_list(chan, cli, &op->both_list, pbbo, user_buffers); |
6ee73861 | 551 | if (unlikely(ret < 0)) { |
938c40ed | 552 | if (ret != -ERESTARTSYS) |
fa2bade9 | 553 | NV_PRINTK(error, cli, "validate both_list\n"); |
6ee73861 BS |
554 | validate_fini(op, NULL); |
555 | return ret; | |
556 | } | |
557 | relocs += ret; | |
558 | ||
559 | *apply_relocs = relocs; | |
560 | return 0; | |
561 | } | |
562 | ||
c859074e ML |
563 | static inline void |
564 | u_free(void *addr) | |
565 | { | |
566 | if (!is_vmalloc_addr(addr)) | |
567 | kfree(addr); | |
568 | else | |
569 | vfree(addr); | |
570 | } | |
571 | ||
6ee73861 BS |
572 | static inline void * |
573 | u_memcpya(uint64_t user, unsigned nmemb, unsigned size) | |
574 | { | |
575 | void *mem; | |
576 | void __user *userptr = (void __force __user *)(uintptr_t)user; | |
577 | ||
c859074e ML |
578 | size *= nmemb; |
579 | ||
580 | mem = kmalloc(size, GFP_KERNEL | __GFP_NOWARN); | |
581 | if (!mem) | |
582 | mem = vmalloc(size); | |
6ee73861 BS |
583 | if (!mem) |
584 | return ERR_PTR(-ENOMEM); | |
585 | ||
1d6ac185 | 586 | if (copy_from_user(mem, userptr, size)) { |
c859074e | 587 | u_free(mem); |
6ee73861 BS |
588 | return ERR_PTR(-EFAULT); |
589 | } | |
590 | ||
591 | return mem; | |
592 | } | |
593 | ||
594 | static int | |
a84fa1a3 | 595 | nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli, |
a1606a95 BS |
596 | struct drm_nouveau_gem_pushbuf *req, |
597 | struct drm_nouveau_gem_pushbuf_bo *bo) | |
6ee73861 BS |
598 | { |
599 | struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL; | |
12f735b7 LB |
600 | int ret = 0; |
601 | unsigned i; | |
6ee73861 | 602 | |
a1606a95 | 603 | reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc)); |
6ee73861 BS |
604 | if (IS_ERR(reloc)) |
605 | return PTR_ERR(reloc); | |
606 | ||
a1606a95 | 607 | for (i = 0; i < req->nr_relocs; i++) { |
6ee73861 BS |
608 | struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i]; |
609 | struct drm_nouveau_gem_pushbuf_bo *b; | |
a1606a95 | 610 | struct nouveau_bo *nvbo; |
6ee73861 BS |
611 | uint32_t data; |
612 | ||
a1606a95 | 613 | if (unlikely(r->bo_index > req->nr_buffers)) { |
fa2bade9 | 614 | NV_PRINTK(error, cli, "reloc bo index invalid\n"); |
6ee73861 BS |
615 | ret = -EINVAL; |
616 | break; | |
617 | } | |
618 | ||
619 | b = &bo[r->bo_index]; | |
a1606a95 | 620 | if (b->presumed.valid) |
6ee73861 BS |
621 | continue; |
622 | ||
a1606a95 | 623 | if (unlikely(r->reloc_bo_index > req->nr_buffers)) { |
fa2bade9 | 624 | NV_PRINTK(error, cli, "reloc container bo index invalid\n"); |
a1606a95 BS |
625 | ret = -EINVAL; |
626 | break; | |
627 | } | |
628 | nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv; | |
629 | ||
630 | if (unlikely(r->reloc_bo_offset + 4 > | |
631 | nvbo->bo.mem.num_pages << PAGE_SHIFT)) { | |
fa2bade9 | 632 | NV_PRINTK(error, cli, "reloc outside of bo\n"); |
a1606a95 BS |
633 | ret = -EINVAL; |
634 | break; | |
635 | } | |
636 | ||
637 | if (!nvbo->kmap.virtual) { | |
638 | ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages, | |
639 | &nvbo->kmap); | |
640 | if (ret) { | |
fa2bade9 | 641 | NV_PRINTK(error, cli, "failed kmap for reloc\n"); |
a1606a95 BS |
642 | break; |
643 | } | |
644 | nvbo->validate_mapped = true; | |
645 | } | |
646 | ||
6ee73861 | 647 | if (r->flags & NOUVEAU_GEM_RELOC_LOW) |
a1606a95 | 648 | data = b->presumed.offset + r->data; |
6ee73861 BS |
649 | else |
650 | if (r->flags & NOUVEAU_GEM_RELOC_HIGH) | |
a1606a95 | 651 | data = (b->presumed.offset + r->data) >> 32; |
6ee73861 BS |
652 | else |
653 | data = r->data; | |
654 | ||
655 | if (r->flags & NOUVEAU_GEM_RELOC_OR) { | |
a1606a95 | 656 | if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART) |
6ee73861 BS |
657 | data |= r->tor; |
658 | else | |
659 | data |= r->vor; | |
660 | } | |
661 | ||
702adba2 | 662 | spin_lock(&nvbo->bo.bdev->fence_lock); |
a1606a95 | 663 | ret = ttm_bo_wait(&nvbo->bo, false, false, false); |
702adba2 | 664 | spin_unlock(&nvbo->bo.bdev->fence_lock); |
a1606a95 | 665 | if (ret) { |
fa2bade9 | 666 | NV_PRINTK(error, cli, "reloc wait_idle failed: %d\n", ret); |
a1606a95 BS |
667 | break; |
668 | } | |
a1606a95 BS |
669 | |
670 | nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data); | |
6ee73861 BS |
671 | } |
672 | ||
c859074e | 673 | u_free(reloc); |
6ee73861 BS |
674 | return ret; |
675 | } | |
676 | ||
677 | int | |
678 | nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data, | |
679 | struct drm_file *file_priv) | |
680 | { | |
ebb945a9 | 681 | struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev); |
a84fa1a3 | 682 | struct nouveau_cli *cli = nouveau_cli(file_priv); |
ebb945a9 BS |
683 | struct nouveau_abi16_chan *temp; |
684 | struct nouveau_drm *drm = nouveau_drm(dev); | |
6ee73861 | 685 | struct drm_nouveau_gem_pushbuf *req = data; |
a1606a95 BS |
686 | struct drm_nouveau_gem_pushbuf_push *push; |
687 | struct drm_nouveau_gem_pushbuf_bo *bo; | |
ebb945a9 | 688 | struct nouveau_channel *chan = NULL; |
6ee73861 | 689 | struct validate_op op; |
6e86e041 | 690 | struct nouveau_fence *fence = NULL; |
a1606a95 | 691 | int i, j, ret = 0, do_reloc = 0; |
6ee73861 | 692 | |
ebb945a9 BS |
693 | if (unlikely(!abi16)) |
694 | return -ENOMEM; | |
6ee73861 | 695 | |
ebb945a9 | 696 | list_for_each_entry(temp, &abi16->channels, head) { |
0ad72863 | 697 | if (temp->chan->object->handle == (NVDRM_CHAN | req->channel)) { |
ebb945a9 BS |
698 | chan = temp->chan; |
699 | break; | |
700 | } | |
701 | } | |
6ee73861 | 702 | |
ebb945a9 BS |
703 | if (!chan) |
704 | return nouveau_abi16_put(abi16, -ENOENT); | |
705 | ||
706 | req->vram_available = drm->gem.vram_available; | |
707 | req->gart_available = drm->gem.gart_available; | |
a1606a95 BS |
708 | if (unlikely(req->nr_push == 0)) |
709 | goto out_next; | |
6ee73861 | 710 | |
a1606a95 | 711 | if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) { |
fa2bade9 | 712 | NV_PRINTK(error, cli, "pushbuf push count exceeds limit: %d max %d\n", |
a1606a95 | 713 | req->nr_push, NOUVEAU_GEM_MAX_PUSH); |
ebb945a9 | 714 | return nouveau_abi16_put(abi16, -EINVAL); |
6ee73861 BS |
715 | } |
716 | ||
a1606a95 | 717 | if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) { |
fa2bade9 | 718 | NV_PRINTK(error, cli, "pushbuf bo count exceeds limit: %d max %d\n", |
a1606a95 | 719 | req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS); |
ebb945a9 | 720 | return nouveau_abi16_put(abi16, -EINVAL); |
6ee73861 BS |
721 | } |
722 | ||
a1606a95 | 723 | if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) { |
fa2bade9 | 724 | NV_PRINTK(error, cli, "pushbuf reloc count exceeds limit: %d max %d\n", |
a1606a95 | 725 | req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS); |
ebb945a9 | 726 | return nouveau_abi16_put(abi16, -EINVAL); |
6ee73861 BS |
727 | } |
728 | ||
a1606a95 | 729 | push = u_memcpya(req->push, req->nr_push, sizeof(*push)); |
ebb945a9 BS |
730 | if (IS_ERR(push)) |
731 | return nouveau_abi16_put(abi16, PTR_ERR(push)); | |
a1606a95 | 732 | |
6ee73861 | 733 | bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo)); |
a1606a95 | 734 | if (IS_ERR(bo)) { |
c859074e | 735 | u_free(push); |
ebb945a9 | 736 | return nouveau_abi16_put(abi16, PTR_ERR(bo)); |
a1606a95 | 737 | } |
6ee73861 | 738 | |
accf9496 | 739 | /* Ensure all push buffers are on validate list */ |
415e6186 BS |
740 | for (i = 0; i < req->nr_push; i++) { |
741 | if (push[i].bo_index >= req->nr_buffers) { | |
fa2bade9 | 742 | NV_PRINTK(error, cli, "push %d buffer not in list\n", i); |
415e6186 | 743 | ret = -EINVAL; |
7fa0cba2 | 744 | goto out_prevalid; |
415e6186 | 745 | } |
415e6186 BS |
746 | } |
747 | ||
6ee73861 BS |
748 | /* Validate buffer list */ |
749 | ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers, | |
750 | req->nr_buffers, &op, &do_reloc); | |
751 | if (ret) { | |
938c40ed | 752 | if (ret != -ERESTARTSYS) |
fa2bade9 | 753 | NV_PRINTK(error, cli, "validate: %d\n", ret); |
7fa0cba2 | 754 | goto out_prevalid; |
6ee73861 BS |
755 | } |
756 | ||
6ee73861 BS |
757 | /* Apply any relocations that are required */ |
758 | if (do_reloc) { | |
a84fa1a3 | 759 | ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo); |
6ee73861 | 760 | if (ret) { |
fa2bade9 | 761 | NV_PRINTK(error, cli, "reloc apply: %d\n", ret); |
6ee73861 BS |
762 | goto out; |
763 | } | |
6ee73861 | 764 | } |
6ee73861 | 765 | |
9a391ad8 | 766 | if (chan->dma.ib_max) { |
5e120f6e | 767 | ret = nouveau_dma_wait(chan, req->nr_push + 1, 16); |
6ee73861 | 768 | if (ret) { |
fa2bade9 | 769 | NV_PRINTK(error, cli, "nv50cal_space: %d\n", ret); |
6ee73861 BS |
770 | goto out; |
771 | } | |
6ee73861 | 772 | |
a1606a95 BS |
773 | for (i = 0; i < req->nr_push; i++) { |
774 | struct nouveau_bo *nvbo = (void *)(unsigned long) | |
775 | bo[push[i].bo_index].user_priv; | |
776 | ||
777 | nv50_dma_push(chan, nvbo, push[i].offset, | |
778 | push[i].length); | |
779 | } | |
9a391ad8 | 780 | } else |
967e7bde | 781 | if (drm->device.info.chipset >= 0x25) { |
a1606a95 | 782 | ret = RING_SPACE(chan, req->nr_push * 2); |
6ee73861 | 783 | if (ret) { |
fa2bade9 | 784 | NV_PRINTK(error, cli, "cal_space: %d\n", ret); |
6ee73861 BS |
785 | goto out; |
786 | } | |
a1606a95 BS |
787 | |
788 | for (i = 0; i < req->nr_push; i++) { | |
789 | struct nouveau_bo *nvbo = (void *)(unsigned long) | |
790 | bo[push[i].bo_index].user_priv; | |
a1606a95 | 791 | |
3a92d37e | 792 | OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2); |
a1606a95 BS |
793 | OUT_RING(chan, 0); |
794 | } | |
6ee73861 | 795 | } else { |
a1606a95 | 796 | ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS)); |
6ee73861 | 797 | if (ret) { |
fa2bade9 | 798 | NV_PRINTK(error, cli, "jmp_space: %d\n", ret); |
6ee73861 BS |
799 | goto out; |
800 | } | |
6ee73861 | 801 | |
a1606a95 BS |
802 | for (i = 0; i < req->nr_push; i++) { |
803 | struct nouveau_bo *nvbo = (void *)(unsigned long) | |
804 | bo[push[i].bo_index].user_priv; | |
a1606a95 BS |
805 | uint32_t cmd; |
806 | ||
ebb945a9 | 807 | cmd = chan->push.vma.offset + ((chan->dma.cur + 2) << 2); |
a1606a95 BS |
808 | cmd |= 0x20000000; |
809 | if (unlikely(cmd != req->suffix0)) { | |
810 | if (!nvbo->kmap.virtual) { | |
811 | ret = ttm_bo_kmap(&nvbo->bo, 0, | |
812 | nvbo->bo.mem. | |
813 | num_pages, | |
814 | &nvbo->kmap); | |
815 | if (ret) { | |
816 | WIND_RING(chan); | |
817 | goto out; | |
818 | } | |
819 | nvbo->validate_mapped = true; | |
820 | } | |
821 | ||
822 | nouveau_bo_wr32(nvbo, (push[i].offset + | |
823 | push[i].length - 8) / 4, cmd); | |
824 | } | |
825 | ||
3a92d37e BS |
826 | OUT_RING(chan, 0x20000000 | |
827 | (nvbo->bo.offset + push[i].offset)); | |
6ee73861 | 828 | OUT_RING(chan, 0); |
a1606a95 BS |
829 | for (j = 0; j < NOUVEAU_DMA_SKIPS; j++) |
830 | OUT_RING(chan, 0); | |
831 | } | |
6ee73861 BS |
832 | } |
833 | ||
264ce192 | 834 | ret = nouveau_fence_new(chan, false, &fence); |
6ee73861 | 835 | if (ret) { |
fa2bade9 | 836 | NV_PRINTK(error, cli, "error fencing pushbuf: %d\n", ret); |
6ee73861 BS |
837 | WIND_RING(chan); |
838 | goto out; | |
839 | } | |
840 | ||
841 | out: | |
234896a7 | 842 | validate_fini(&op, fence); |
382d62e5 | 843 | nouveau_fence_unref(&fence); |
7fa0cba2 MS |
844 | |
845 | out_prevalid: | |
c859074e ML |
846 | u_free(bo); |
847 | u_free(push); | |
6ee73861 BS |
848 | |
849 | out_next: | |
9a391ad8 BS |
850 | if (chan->dma.ib_max) { |
851 | req->suffix0 = 0x00000000; | |
852 | req->suffix1 = 0x00000000; | |
853 | } else | |
967e7bde | 854 | if (drm->device.info.chipset >= 0x25) { |
6ee73861 BS |
855 | req->suffix0 = 0x00020000; |
856 | req->suffix1 = 0x00000000; | |
857 | } else { | |
858 | req->suffix0 = 0x20000000 | | |
ebb945a9 | 859 | (chan->push.vma.offset + ((chan->dma.cur + 2) << 2)); |
6ee73861 BS |
860 | req->suffix1 = 0x00000000; |
861 | } | |
862 | ||
ebb945a9 | 863 | return nouveau_abi16_put(abi16, ret); |
6ee73861 BS |
864 | } |
865 | ||
6ee73861 BS |
866 | static inline uint32_t |
867 | domain_to_ttm(struct nouveau_bo *nvbo, uint32_t domain) | |
868 | { | |
869 | uint32_t flags = 0; | |
870 | ||
871 | if (domain & NOUVEAU_GEM_DOMAIN_VRAM) | |
872 | flags |= TTM_PL_FLAG_VRAM; | |
873 | if (domain & NOUVEAU_GEM_DOMAIN_GART) | |
874 | flags |= TTM_PL_FLAG_TT; | |
875 | ||
876 | return flags; | |
877 | } | |
878 | ||
6ee73861 BS |
879 | int |
880 | nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data, | |
881 | struct drm_file *file_priv) | |
882 | { | |
883 | struct drm_nouveau_gem_cpu_prep *req = data; | |
884 | struct drm_gem_object *gem; | |
885 | struct nouveau_bo *nvbo; | |
886 | bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT); | |
887 | int ret = -EINVAL; | |
888 | ||
6ee73861 BS |
889 | gem = drm_gem_object_lookup(dev, file_priv, req->handle); |
890 | if (!gem) | |
bf79cb91 | 891 | return -ENOENT; |
6ee73861 BS |
892 | nvbo = nouveau_gem_object(gem); |
893 | ||
21e86c1c BS |
894 | spin_lock(&nvbo->bo.bdev->fence_lock); |
895 | ret = ttm_bo_wait(&nvbo->bo, true, true, no_wait); | |
896 | spin_unlock(&nvbo->bo.bdev->fence_lock); | |
bc9025bd | 897 | drm_gem_object_unreference_unlocked(gem); |
6ee73861 BS |
898 | return ret; |
899 | } | |
900 | ||
901 | int | |
902 | nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data, | |
903 | struct drm_file *file_priv) | |
904 | { | |
21e86c1c | 905 | return 0; |
6ee73861 BS |
906 | } |
907 | ||
908 | int | |
909 | nouveau_gem_ioctl_info(struct drm_device *dev, void *data, | |
910 | struct drm_file *file_priv) | |
911 | { | |
912 | struct drm_nouveau_gem_info *req = data; | |
913 | struct drm_gem_object *gem; | |
914 | int ret; | |
915 | ||
6ee73861 BS |
916 | gem = drm_gem_object_lookup(dev, file_priv, req->handle); |
917 | if (!gem) | |
bf79cb91 | 918 | return -ENOENT; |
6ee73861 | 919 | |
e758a311 | 920 | ret = nouveau_gem_info(file_priv, gem, req); |
bc9025bd | 921 | drm_gem_object_unreference_unlocked(gem); |
6ee73861 BS |
922 | return ret; |
923 | } | |
924 |