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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 | */ | |
26 | #include "drmP.h" | |
27 | #include "drm.h" | |
28 | ||
29 | #include "nouveau_drv.h" | |
30 | #include "nouveau_drm.h" | |
31 | #include "nouveau_dma.h" | |
32 | ||
33 | #define nouveau_gem_pushbuf_sync(chan) 0 | |
34 | ||
35 | int | |
36 | nouveau_gem_object_new(struct drm_gem_object *gem) | |
37 | { | |
38 | return 0; | |
39 | } | |
40 | ||
41 | void | |
42 | nouveau_gem_object_del(struct drm_gem_object *gem) | |
43 | { | |
44 | struct nouveau_bo *nvbo = gem->driver_private; | |
45 | struct ttm_buffer_object *bo = &nvbo->bo; | |
46 | ||
47 | if (!nvbo) | |
48 | return; | |
49 | nvbo->gem = NULL; | |
50 | ||
51 | if (unlikely(nvbo->cpu_filp)) | |
52 | ttm_bo_synccpu_write_release(bo); | |
53 | ||
54 | if (unlikely(nvbo->pin_refcnt)) { | |
55 | nvbo->pin_refcnt = 1; | |
56 | nouveau_bo_unpin(nvbo); | |
57 | } | |
58 | ||
59 | ttm_bo_unref(&bo); | |
60 | } | |
61 | ||
62 | int | |
63 | nouveau_gem_new(struct drm_device *dev, struct nouveau_channel *chan, | |
64 | int size, int align, uint32_t flags, uint32_t tile_mode, | |
65 | uint32_t tile_flags, bool no_vm, bool mappable, | |
66 | struct nouveau_bo **pnvbo) | |
67 | { | |
68 | struct nouveau_bo *nvbo; | |
69 | int ret; | |
70 | ||
71 | ret = nouveau_bo_new(dev, chan, size, align, flags, tile_mode, | |
72 | tile_flags, no_vm, mappable, pnvbo); | |
73 | if (ret) | |
74 | return ret; | |
75 | nvbo = *pnvbo; | |
76 | ||
77 | nvbo->gem = drm_gem_object_alloc(dev, nvbo->bo.mem.size); | |
78 | if (!nvbo->gem) { | |
79 | nouveau_bo_ref(NULL, pnvbo); | |
80 | return -ENOMEM; | |
81 | } | |
82 | ||
83 | nvbo->bo.persistant_swap_storage = nvbo->gem->filp; | |
84 | nvbo->gem->driver_private = nvbo; | |
85 | return 0; | |
86 | } | |
87 | ||
88 | static int | |
89 | nouveau_gem_info(struct drm_gem_object *gem, struct drm_nouveau_gem_info *rep) | |
90 | { | |
91 | struct nouveau_bo *nvbo = nouveau_gem_object(gem); | |
92 | ||
93 | if (nvbo->bo.mem.mem_type == TTM_PL_TT) | |
94 | rep->domain = NOUVEAU_GEM_DOMAIN_GART; | |
95 | else | |
96 | rep->domain = NOUVEAU_GEM_DOMAIN_VRAM; | |
97 | ||
98 | rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT; | |
99 | rep->offset = nvbo->bo.offset; | |
100 | rep->map_handle = nvbo->mappable ? nvbo->bo.addr_space_offset : 0; | |
101 | rep->tile_mode = nvbo->tile_mode; | |
102 | rep->tile_flags = nvbo->tile_flags; | |
103 | return 0; | |
104 | } | |
105 | ||
106 | static bool | |
107 | nouveau_gem_tile_flags_valid(struct drm_device *dev, uint32_t tile_flags) { | |
108 | switch (tile_flags) { | |
109 | case 0x0000: | |
110 | case 0x1800: | |
111 | case 0x2800: | |
112 | case 0x4800: | |
113 | case 0x7000: | |
114 | case 0x7400: | |
115 | case 0x7a00: | |
116 | case 0xe000: | |
117 | break; | |
118 | default: | |
119 | NV_ERROR(dev, "bad page flags: 0x%08x\n", tile_flags); | |
120 | return false; | |
121 | } | |
122 | ||
123 | return true; | |
124 | } | |
125 | ||
126 | int | |
127 | nouveau_gem_ioctl_new(struct drm_device *dev, void *data, | |
128 | struct drm_file *file_priv) | |
129 | { | |
130 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
131 | struct drm_nouveau_gem_new *req = data; | |
132 | struct nouveau_bo *nvbo = NULL; | |
133 | struct nouveau_channel *chan = NULL; | |
134 | uint32_t flags = 0; | |
135 | int ret = 0; | |
136 | ||
137 | NOUVEAU_CHECK_INITIALISED_WITH_RETURN; | |
138 | ||
139 | if (unlikely(dev_priv->ttm.bdev.dev_mapping == NULL)) | |
140 | dev_priv->ttm.bdev.dev_mapping = dev_priv->dev->dev_mapping; | |
141 | ||
142 | if (req->channel_hint) { | |
143 | NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel_hint, | |
144 | file_priv, chan); | |
145 | } | |
146 | ||
147 | if (req->info.domain & NOUVEAU_GEM_DOMAIN_VRAM) | |
148 | flags |= TTM_PL_FLAG_VRAM; | |
149 | if (req->info.domain & NOUVEAU_GEM_DOMAIN_GART) | |
150 | flags |= TTM_PL_FLAG_TT; | |
151 | if (!flags || req->info.domain & NOUVEAU_GEM_DOMAIN_CPU) | |
152 | flags |= TTM_PL_FLAG_SYSTEM; | |
153 | ||
154 | if (!nouveau_gem_tile_flags_valid(dev, req->info.tile_flags)) | |
155 | return -EINVAL; | |
156 | ||
157 | ret = nouveau_gem_new(dev, chan, req->info.size, req->align, flags, | |
158 | req->info.tile_mode, req->info.tile_flags, false, | |
159 | (req->info.domain & NOUVEAU_GEM_DOMAIN_MAPPABLE), | |
160 | &nvbo); | |
161 | if (ret) | |
162 | return ret; | |
163 | ||
164 | ret = nouveau_gem_info(nvbo->gem, &req->info); | |
165 | if (ret) | |
166 | goto out; | |
167 | ||
168 | ret = drm_gem_handle_create(file_priv, nvbo->gem, &req->info.handle); | |
169 | out: | |
170 | mutex_lock(&dev->struct_mutex); | |
171 | drm_gem_object_handle_unreference(nvbo->gem); | |
172 | mutex_unlock(&dev->struct_mutex); | |
173 | ||
174 | if (ret) | |
175 | drm_gem_object_unreference(nvbo->gem); | |
176 | return ret; | |
177 | } | |
178 | ||
179 | static int | |
180 | nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains, | |
181 | uint32_t write_domains, uint32_t valid_domains) | |
182 | { | |
183 | struct nouveau_bo *nvbo = gem->driver_private; | |
184 | struct ttm_buffer_object *bo = &nvbo->bo; | |
185 | uint64_t flags; | |
186 | ||
187 | if (!valid_domains || (!read_domains && !write_domains)) | |
188 | return -EINVAL; | |
189 | ||
190 | if (write_domains) { | |
191 | if ((valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) && | |
192 | (write_domains & NOUVEAU_GEM_DOMAIN_VRAM)) | |
193 | flags = TTM_PL_FLAG_VRAM; | |
194 | else | |
195 | if ((valid_domains & NOUVEAU_GEM_DOMAIN_GART) && | |
196 | (write_domains & NOUVEAU_GEM_DOMAIN_GART)) | |
197 | flags = TTM_PL_FLAG_TT; | |
198 | else | |
199 | return -EINVAL; | |
200 | } else { | |
201 | if ((valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) && | |
202 | (read_domains & NOUVEAU_GEM_DOMAIN_VRAM) && | |
203 | bo->mem.mem_type == TTM_PL_VRAM) | |
204 | flags = TTM_PL_FLAG_VRAM; | |
205 | else | |
206 | if ((valid_domains & NOUVEAU_GEM_DOMAIN_GART) && | |
207 | (read_domains & NOUVEAU_GEM_DOMAIN_GART) && | |
208 | bo->mem.mem_type == TTM_PL_TT) | |
209 | flags = TTM_PL_FLAG_TT; | |
210 | else | |
211 | if ((valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) && | |
212 | (read_domains & NOUVEAU_GEM_DOMAIN_VRAM)) | |
213 | flags = TTM_PL_FLAG_VRAM; | |
214 | else | |
215 | flags = TTM_PL_FLAG_TT; | |
216 | } | |
217 | ||
218 | nouveau_bo_placement_set(nvbo, flags); | |
219 | return 0; | |
220 | } | |
221 | ||
222 | struct validate_op { | |
6ee73861 BS |
223 | struct list_head vram_list; |
224 | struct list_head gart_list; | |
225 | struct list_head both_list; | |
226 | }; | |
227 | ||
228 | static void | |
229 | validate_fini_list(struct list_head *list, struct nouveau_fence *fence) | |
230 | { | |
231 | struct list_head *entry, *tmp; | |
232 | struct nouveau_bo *nvbo; | |
233 | ||
234 | list_for_each_safe(entry, tmp, list) { | |
235 | nvbo = list_entry(entry, struct nouveau_bo, entry); | |
236 | if (likely(fence)) { | |
237 | struct nouveau_fence *prev_fence; | |
238 | ||
239 | spin_lock(&nvbo->bo.lock); | |
240 | prev_fence = nvbo->bo.sync_obj; | |
241 | nvbo->bo.sync_obj = nouveau_fence_ref(fence); | |
242 | spin_unlock(&nvbo->bo.lock); | |
243 | nouveau_fence_unref((void *)&prev_fence); | |
244 | } | |
245 | ||
246 | list_del(&nvbo->entry); | |
247 | nvbo->reserved_by = NULL; | |
248 | ttm_bo_unreserve(&nvbo->bo); | |
249 | drm_gem_object_unreference(nvbo->gem); | |
250 | } | |
251 | } | |
252 | ||
253 | static void | |
234896a7 | 254 | validate_fini(struct validate_op *op, struct nouveau_fence* fence) |
6ee73861 | 255 | { |
234896a7 LB |
256 | validate_fini_list(&op->vram_list, fence); |
257 | validate_fini_list(&op->gart_list, fence); | |
258 | validate_fini_list(&op->both_list, fence); | |
6ee73861 BS |
259 | } |
260 | ||
261 | static int | |
262 | validate_init(struct nouveau_channel *chan, struct drm_file *file_priv, | |
263 | struct drm_nouveau_gem_pushbuf_bo *pbbo, | |
264 | int nr_buffers, struct validate_op *op) | |
265 | { | |
266 | struct drm_device *dev = chan->dev; | |
267 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
268 | uint32_t sequence; | |
269 | int trycnt = 0; | |
270 | int ret, i; | |
271 | ||
272 | sequence = atomic_add_return(1, &dev_priv->ttm.validate_sequence); | |
273 | retry: | |
274 | if (++trycnt > 100000) { | |
275 | NV_ERROR(dev, "%s failed and gave up.\n", __func__); | |
276 | return -EINVAL; | |
277 | } | |
278 | ||
279 | for (i = 0; i < nr_buffers; i++) { | |
280 | struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i]; | |
281 | struct drm_gem_object *gem; | |
282 | struct nouveau_bo *nvbo; | |
283 | ||
284 | gem = drm_gem_object_lookup(dev, file_priv, b->handle); | |
285 | if (!gem) { | |
286 | NV_ERROR(dev, "Unknown handle 0x%08x\n", b->handle); | |
287 | validate_fini(op, NULL); | |
288 | return -EINVAL; | |
289 | } | |
290 | nvbo = gem->driver_private; | |
291 | ||
292 | if (nvbo->reserved_by && nvbo->reserved_by == file_priv) { | |
293 | NV_ERROR(dev, "multiple instances of buffer %d on " | |
294 | "validation list\n", b->handle); | |
295 | validate_fini(op, NULL); | |
296 | return -EINVAL; | |
297 | } | |
298 | ||
299 | ret = ttm_bo_reserve(&nvbo->bo, false, false, true, sequence); | |
300 | if (ret) { | |
301 | validate_fini(op, NULL); | |
302 | if (ret == -EAGAIN) | |
303 | ret = ttm_bo_wait_unreserved(&nvbo->bo, false); | |
304 | drm_gem_object_unreference(gem); | |
305 | if (ret) | |
306 | return ret; | |
307 | goto retry; | |
308 | } | |
309 | ||
310 | nvbo->reserved_by = file_priv; | |
311 | nvbo->pbbo_index = i; | |
312 | if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) && | |
313 | (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)) | |
314 | list_add_tail(&nvbo->entry, &op->both_list); | |
315 | else | |
316 | if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) | |
317 | list_add_tail(&nvbo->entry, &op->vram_list); | |
318 | else | |
319 | if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART) | |
320 | list_add_tail(&nvbo->entry, &op->gart_list); | |
321 | else { | |
322 | NV_ERROR(dev, "invalid valid domains: 0x%08x\n", | |
323 | b->valid_domains); | |
0208843d | 324 | list_add_tail(&nvbo->entry, &op->both_list); |
6ee73861 BS |
325 | validate_fini(op, NULL); |
326 | return -EINVAL; | |
327 | } | |
328 | ||
329 | if (unlikely(atomic_read(&nvbo->bo.cpu_writers) > 0)) { | |
330 | validate_fini(op, NULL); | |
331 | ||
332 | if (nvbo->cpu_filp == file_priv) { | |
333 | NV_ERROR(dev, "bo %p mapped by process trying " | |
334 | "to validate it!\n", nvbo); | |
335 | return -EINVAL; | |
336 | } | |
337 | ||
338 | ret = ttm_bo_wait_cpu(&nvbo->bo, false); | |
6ee73861 BS |
339 | if (ret) |
340 | return ret; | |
341 | goto retry; | |
342 | } | |
343 | } | |
344 | ||
345 | return 0; | |
346 | } | |
347 | ||
348 | static int | |
349 | validate_list(struct nouveau_channel *chan, struct list_head *list, | |
350 | struct drm_nouveau_gem_pushbuf_bo *pbbo, uint64_t user_pbbo_ptr) | |
351 | { | |
352 | struct drm_nouveau_gem_pushbuf_bo __user *upbbo = | |
353 | (void __force __user *)(uintptr_t)user_pbbo_ptr; | |
354 | struct nouveau_bo *nvbo; | |
355 | int ret, relocs = 0; | |
356 | ||
357 | list_for_each_entry(nvbo, list, entry) { | |
358 | struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index]; | |
359 | struct nouveau_fence *prev_fence = nvbo->bo.sync_obj; | |
360 | ||
361 | if (prev_fence && nouveau_fence_channel(prev_fence) != chan) { | |
362 | spin_lock(&nvbo->bo.lock); | |
363 | ret = ttm_bo_wait(&nvbo->bo, false, false, false); | |
364 | spin_unlock(&nvbo->bo.lock); | |
365 | if (unlikely(ret)) | |
366 | return ret; | |
367 | } | |
368 | ||
369 | ret = nouveau_gem_set_domain(nvbo->gem, b->read_domains, | |
370 | b->write_domains, | |
371 | b->valid_domains); | |
372 | if (unlikely(ret)) | |
373 | return ret; | |
374 | ||
375 | nvbo->channel = chan; | |
376 | ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement, | |
377 | false, false); | |
378 | nvbo->channel = NULL; | |
379 | if (unlikely(ret)) | |
380 | return ret; | |
381 | ||
382 | if (nvbo->bo.offset == b->presumed_offset && | |
383 | ((nvbo->bo.mem.mem_type == TTM_PL_VRAM && | |
384 | b->presumed_domain & NOUVEAU_GEM_DOMAIN_VRAM) || | |
385 | (nvbo->bo.mem.mem_type == TTM_PL_TT && | |
386 | b->presumed_domain & NOUVEAU_GEM_DOMAIN_GART))) | |
387 | continue; | |
388 | ||
389 | if (nvbo->bo.mem.mem_type == TTM_PL_TT) | |
390 | b->presumed_domain = NOUVEAU_GEM_DOMAIN_GART; | |
391 | else | |
392 | b->presumed_domain = NOUVEAU_GEM_DOMAIN_VRAM; | |
393 | b->presumed_offset = nvbo->bo.offset; | |
394 | b->presumed_ok = 0; | |
395 | relocs++; | |
396 | ||
397 | if (DRM_COPY_TO_USER(&upbbo[nvbo->pbbo_index], b, sizeof(*b))) | |
398 | return -EFAULT; | |
399 | } | |
400 | ||
401 | return relocs; | |
402 | } | |
403 | ||
404 | static int | |
405 | nouveau_gem_pushbuf_validate(struct nouveau_channel *chan, | |
406 | struct drm_file *file_priv, | |
407 | struct drm_nouveau_gem_pushbuf_bo *pbbo, | |
408 | uint64_t user_buffers, int nr_buffers, | |
409 | struct validate_op *op, int *apply_relocs) | |
410 | { | |
411 | int ret, relocs = 0; | |
412 | ||
413 | INIT_LIST_HEAD(&op->vram_list); | |
414 | INIT_LIST_HEAD(&op->gart_list); | |
415 | INIT_LIST_HEAD(&op->both_list); | |
416 | ||
6ee73861 BS |
417 | if (nr_buffers == 0) |
418 | return 0; | |
419 | ||
420 | ret = validate_init(chan, file_priv, pbbo, nr_buffers, op); | |
421 | if (unlikely(ret)) | |
422 | return ret; | |
423 | ||
424 | ret = validate_list(chan, &op->vram_list, pbbo, user_buffers); | |
425 | if (unlikely(ret < 0)) { | |
426 | validate_fini(op, NULL); | |
427 | return ret; | |
428 | } | |
429 | relocs += ret; | |
430 | ||
431 | ret = validate_list(chan, &op->gart_list, pbbo, user_buffers); | |
432 | if (unlikely(ret < 0)) { | |
433 | validate_fini(op, NULL); | |
434 | return ret; | |
435 | } | |
436 | relocs += ret; | |
437 | ||
438 | ret = validate_list(chan, &op->both_list, pbbo, user_buffers); | |
439 | if (unlikely(ret < 0)) { | |
440 | validate_fini(op, NULL); | |
441 | return ret; | |
442 | } | |
443 | relocs += ret; | |
444 | ||
445 | *apply_relocs = relocs; | |
446 | return 0; | |
447 | } | |
448 | ||
449 | static inline void * | |
450 | u_memcpya(uint64_t user, unsigned nmemb, unsigned size) | |
451 | { | |
452 | void *mem; | |
453 | void __user *userptr = (void __force __user *)(uintptr_t)user; | |
454 | ||
455 | mem = kmalloc(nmemb * size, GFP_KERNEL); | |
456 | if (!mem) | |
457 | return ERR_PTR(-ENOMEM); | |
458 | ||
459 | if (DRM_COPY_FROM_USER(mem, userptr, nmemb * size)) { | |
460 | kfree(mem); | |
461 | return ERR_PTR(-EFAULT); | |
462 | } | |
463 | ||
464 | return mem; | |
465 | } | |
466 | ||
467 | static int | |
468 | nouveau_gem_pushbuf_reloc_apply(struct nouveau_channel *chan, int nr_bo, | |
469 | struct drm_nouveau_gem_pushbuf_bo *bo, | |
12f735b7 LB |
470 | unsigned nr_relocs, uint64_t ptr_relocs, |
471 | unsigned nr_dwords, unsigned first_dword, | |
6ee73861 BS |
472 | uint32_t *pushbuf, bool is_iomem) |
473 | { | |
474 | struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL; | |
475 | struct drm_device *dev = chan->dev; | |
12f735b7 LB |
476 | int ret = 0; |
477 | unsigned i; | |
6ee73861 BS |
478 | |
479 | reloc = u_memcpya(ptr_relocs, nr_relocs, sizeof(*reloc)); | |
480 | if (IS_ERR(reloc)) | |
481 | return PTR_ERR(reloc); | |
482 | ||
483 | for (i = 0; i < nr_relocs; i++) { | |
484 | struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i]; | |
485 | struct drm_nouveau_gem_pushbuf_bo *b; | |
486 | uint32_t data; | |
487 | ||
488 | if (r->bo_index >= nr_bo || r->reloc_index < first_dword || | |
489 | r->reloc_index >= first_dword + nr_dwords) { | |
490 | NV_ERROR(dev, "Bad relocation %d\n", i); | |
491 | NV_ERROR(dev, " bo: %d max %d\n", r->bo_index, nr_bo); | |
492 | NV_ERROR(dev, " id: %d max %d\n", r->reloc_index, nr_dwords); | |
493 | ret = -EINVAL; | |
494 | break; | |
495 | } | |
496 | ||
497 | b = &bo[r->bo_index]; | |
498 | if (b->presumed_ok) | |
499 | continue; | |
500 | ||
501 | if (r->flags & NOUVEAU_GEM_RELOC_LOW) | |
502 | data = b->presumed_offset + r->data; | |
503 | else | |
504 | if (r->flags & NOUVEAU_GEM_RELOC_HIGH) | |
505 | data = (b->presumed_offset + r->data) >> 32; | |
506 | else | |
507 | data = r->data; | |
508 | ||
509 | if (r->flags & NOUVEAU_GEM_RELOC_OR) { | |
510 | if (b->presumed_domain == NOUVEAU_GEM_DOMAIN_GART) | |
511 | data |= r->tor; | |
512 | else | |
513 | data |= r->vor; | |
514 | } | |
515 | ||
516 | if (is_iomem) | |
517 | iowrite32_native(data, (void __force __iomem *) | |
518 | &pushbuf[r->reloc_index]); | |
519 | else | |
520 | pushbuf[r->reloc_index] = data; | |
521 | } | |
522 | ||
523 | kfree(reloc); | |
524 | return ret; | |
525 | } | |
526 | ||
527 | int | |
528 | nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data, | |
529 | struct drm_file *file_priv) | |
530 | { | |
531 | struct drm_nouveau_gem_pushbuf *req = data; | |
532 | struct drm_nouveau_gem_pushbuf_bo *bo = NULL; | |
533 | struct nouveau_channel *chan; | |
534 | struct validate_op op; | |
234896a7 | 535 | struct nouveau_fence* fence = 0; |
6ee73861 BS |
536 | uint32_t *pushbuf = NULL; |
537 | int ret = 0, do_reloc = 0, i; | |
538 | ||
539 | NOUVEAU_CHECK_INITIALISED_WITH_RETURN; | |
540 | NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel, file_priv, chan); | |
541 | ||
542 | if (req->nr_dwords >= chan->dma.max || | |
543 | req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS || | |
544 | req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS) { | |
545 | NV_ERROR(dev, "Pushbuf config exceeds limits:\n"); | |
546 | NV_ERROR(dev, " dwords : %d max %d\n", req->nr_dwords, | |
547 | chan->dma.max - 1); | |
548 | NV_ERROR(dev, " buffers: %d max %d\n", req->nr_buffers, | |
549 | NOUVEAU_GEM_MAX_BUFFERS); | |
550 | NV_ERROR(dev, " relocs : %d max %d\n", req->nr_relocs, | |
551 | NOUVEAU_GEM_MAX_RELOCS); | |
552 | return -EINVAL; | |
553 | } | |
554 | ||
555 | pushbuf = u_memcpya(req->dwords, req->nr_dwords, sizeof(uint32_t)); | |
556 | if (IS_ERR(pushbuf)) | |
557 | return PTR_ERR(pushbuf); | |
558 | ||
559 | bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo)); | |
560 | if (IS_ERR(bo)) { | |
561 | kfree(pushbuf); | |
562 | return PTR_ERR(bo); | |
563 | } | |
564 | ||
565 | mutex_lock(&dev->struct_mutex); | |
566 | ||
567 | /* Validate buffer list */ | |
568 | ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers, | |
569 | req->nr_buffers, &op, &do_reloc); | |
570 | if (ret) | |
571 | goto out; | |
572 | ||
573 | /* Apply any relocations that are required */ | |
574 | if (do_reloc) { | |
575 | ret = nouveau_gem_pushbuf_reloc_apply(chan, req->nr_buffers, | |
576 | bo, req->nr_relocs, | |
577 | req->relocs, | |
578 | req->nr_dwords, 0, | |
579 | pushbuf, false); | |
580 | if (ret) | |
581 | goto out; | |
582 | } | |
583 | ||
584 | /* Emit push buffer to the hw | |
585 | */ | |
586 | ret = RING_SPACE(chan, req->nr_dwords); | |
587 | if (ret) | |
588 | goto out; | |
589 | ||
590 | OUT_RINGp(chan, pushbuf, req->nr_dwords); | |
591 | ||
234896a7 | 592 | ret = nouveau_fence_new(chan, &fence, true); |
6ee73861 BS |
593 | if (ret) { |
594 | NV_ERROR(dev, "error fencing pushbuf: %d\n", ret); | |
595 | WIND_RING(chan); | |
596 | goto out; | |
597 | } | |
598 | ||
599 | if (nouveau_gem_pushbuf_sync(chan)) { | |
234896a7 | 600 | ret = nouveau_fence_wait(fence, NULL, false, false); |
6ee73861 BS |
601 | if (ret) { |
602 | for (i = 0; i < req->nr_dwords; i++) | |
603 | NV_ERROR(dev, "0x%08x\n", pushbuf[i]); | |
604 | NV_ERROR(dev, "^^ above push buffer is fail :(\n"); | |
605 | } | |
606 | } | |
607 | ||
608 | out: | |
234896a7 LB |
609 | validate_fini(&op, fence); |
610 | nouveau_fence_unref((void**)&fence); | |
6ee73861 BS |
611 | mutex_unlock(&dev->struct_mutex); |
612 | kfree(pushbuf); | |
613 | kfree(bo); | |
614 | return ret; | |
615 | } | |
616 | ||
6ee73861 BS |
617 | int |
618 | nouveau_gem_ioctl_pushbuf_call(struct drm_device *dev, void *data, | |
619 | struct drm_file *file_priv) | |
620 | { | |
621 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
622 | struct drm_nouveau_gem_pushbuf_call *req = data; | |
623 | struct drm_nouveau_gem_pushbuf_bo *bo = NULL; | |
624 | struct nouveau_channel *chan; | |
625 | struct drm_gem_object *gem; | |
626 | struct nouveau_bo *pbbo; | |
627 | struct validate_op op; | |
234896a7 | 628 | struct nouveau_fence* fence = 0; |
6ee73861 BS |
629 | int i, ret = 0, do_reloc = 0; |
630 | ||
631 | NOUVEAU_CHECK_INITIALISED_WITH_RETURN; | |
632 | NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel, file_priv, chan); | |
633 | ||
634 | if (unlikely(req->handle == 0)) | |
635 | goto out_next; | |
636 | ||
637 | if (req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS || | |
638 | req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS) { | |
639 | NV_ERROR(dev, "Pushbuf config exceeds limits:\n"); | |
640 | NV_ERROR(dev, " buffers: %d max %d\n", req->nr_buffers, | |
641 | NOUVEAU_GEM_MAX_BUFFERS); | |
642 | NV_ERROR(dev, " relocs : %d max %d\n", req->nr_relocs, | |
643 | NOUVEAU_GEM_MAX_RELOCS); | |
644 | return -EINVAL; | |
645 | } | |
646 | ||
647 | bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo)); | |
648 | if (IS_ERR(bo)) | |
649 | return PTR_ERR(bo); | |
650 | ||
651 | mutex_lock(&dev->struct_mutex); | |
652 | ||
653 | /* Validate buffer list */ | |
654 | ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers, | |
655 | req->nr_buffers, &op, &do_reloc); | |
656 | if (ret) { | |
657 | NV_ERROR(dev, "validate: %d\n", ret); | |
658 | goto out; | |
659 | } | |
660 | ||
661 | /* Validate DMA push buffer */ | |
662 | gem = drm_gem_object_lookup(dev, file_priv, req->handle); | |
663 | if (!gem) { | |
664 | NV_ERROR(dev, "Unknown pb handle 0x%08x\n", req->handle); | |
665 | ret = -EINVAL; | |
666 | goto out; | |
667 | } | |
668 | pbbo = nouveau_gem_object(gem); | |
669 | ||
12f735b7 LB |
670 | if ((req->offset & 3) || req->nr_dwords < 2 || |
671 | (unsigned long)req->offset > (unsigned long)pbbo->bo.mem.size || | |
672 | (unsigned long)req->nr_dwords > | |
673 | ((unsigned long)(pbbo->bo.mem.size - req->offset ) >> 2)) { | |
674 | NV_ERROR(dev, "pb call misaligned or out of bounds: " | |
675 | "%d + %d * 4 > %ld\n", | |
676 | req->offset, req->nr_dwords, pbbo->bo.mem.size); | |
677 | ret = -EINVAL; | |
678 | drm_gem_object_unreference(gem); | |
679 | goto out; | |
680 | } | |
681 | ||
6ee73861 BS |
682 | ret = ttm_bo_reserve(&pbbo->bo, false, false, true, |
683 | chan->fence.sequence); | |
684 | if (ret) { | |
685 | NV_ERROR(dev, "resv pb: %d\n", ret); | |
686 | drm_gem_object_unreference(gem); | |
687 | goto out; | |
688 | } | |
689 | ||
690 | nouveau_bo_placement_set(pbbo, 1 << chan->pushbuf_bo->bo.mem.mem_type); | |
691 | ret = ttm_bo_validate(&pbbo->bo, &pbbo->placement, false, false); | |
692 | if (ret) { | |
693 | NV_ERROR(dev, "validate pb: %d\n", ret); | |
694 | ttm_bo_unreserve(&pbbo->bo); | |
695 | drm_gem_object_unreference(gem); | |
696 | goto out; | |
697 | } | |
698 | ||
699 | list_add_tail(&pbbo->entry, &op.both_list); | |
700 | ||
701 | /* If presumed return address doesn't match, we need to map the | |
702 | * push buffer and fix it.. | |
703 | */ | |
2ccb04ec | 704 | if (dev_priv->card_type < NV_20) { |
6ee73861 BS |
705 | uint32_t retaddy; |
706 | ||
707 | if (chan->dma.free < 4 + NOUVEAU_DMA_SKIPS) { | |
9a391ad8 | 708 | ret = nouveau_dma_wait(chan, 0, 4 + NOUVEAU_DMA_SKIPS); |
6ee73861 BS |
709 | if (ret) { |
710 | NV_ERROR(dev, "jmp_space: %d\n", ret); | |
711 | goto out; | |
712 | } | |
713 | } | |
714 | ||
715 | retaddy = chan->pushbuf_base + ((chan->dma.cur + 2) << 2); | |
716 | retaddy |= 0x20000000; | |
717 | if (retaddy != req->suffix0) { | |
718 | req->suffix0 = retaddy; | |
719 | do_reloc = 1; | |
720 | } | |
721 | } | |
722 | ||
723 | /* Apply any relocations that are required */ | |
724 | if (do_reloc) { | |
725 | void *pbvirt; | |
726 | bool is_iomem; | |
727 | ret = ttm_bo_kmap(&pbbo->bo, 0, pbbo->bo.mem.num_pages, | |
728 | &pbbo->kmap); | |
729 | if (ret) { | |
730 | NV_ERROR(dev, "kmap pb: %d\n", ret); | |
731 | goto out; | |
732 | } | |
733 | ||
734 | pbvirt = ttm_kmap_obj_virtual(&pbbo->kmap, &is_iomem); | |
735 | ret = nouveau_gem_pushbuf_reloc_apply(chan, req->nr_buffers, bo, | |
736 | req->nr_relocs, | |
737 | req->relocs, | |
738 | req->nr_dwords, | |
739 | req->offset / 4, | |
740 | pbvirt, is_iomem); | |
741 | ||
2ccb04ec | 742 | if (dev_priv->card_type < NV_20) { |
6ee73861 BS |
743 | nouveau_bo_wr32(pbbo, |
744 | req->offset / 4 + req->nr_dwords - 2, | |
745 | req->suffix0); | |
746 | } | |
747 | ||
748 | ttm_bo_kunmap(&pbbo->kmap); | |
749 | if (ret) { | |
750 | NV_ERROR(dev, "reloc apply: %d\n", ret); | |
751 | goto out; | |
752 | } | |
753 | } | |
754 | ||
9a391ad8 BS |
755 | if (chan->dma.ib_max) { |
756 | ret = nouveau_dma_wait(chan, 2, 6); | |
757 | if (ret) { | |
758 | NV_INFO(dev, "nv50cal_space: %d\n", ret); | |
759 | goto out; | |
760 | } | |
761 | ||
762 | nv50_dma_push(chan, pbbo, req->offset, req->nr_dwords); | |
763 | } else | |
2ccb04ec | 764 | if (dev_priv->card_type >= NV_20) { |
6ee73861 BS |
765 | ret = RING_SPACE(chan, 2); |
766 | if (ret) { | |
767 | NV_ERROR(dev, "cal_space: %d\n", ret); | |
768 | goto out; | |
769 | } | |
770 | OUT_RING(chan, ((pbbo->bo.mem.mm_node->start << PAGE_SHIFT) + | |
771 | req->offset) | 2); | |
772 | OUT_RING(chan, 0); | |
773 | } else { | |
774 | ret = RING_SPACE(chan, 2 + NOUVEAU_DMA_SKIPS); | |
775 | if (ret) { | |
776 | NV_ERROR(dev, "jmp_space: %d\n", ret); | |
777 | goto out; | |
778 | } | |
779 | OUT_RING(chan, ((pbbo->bo.mem.mm_node->start << PAGE_SHIFT) + | |
780 | req->offset) | 0x20000000); | |
781 | OUT_RING(chan, 0); | |
782 | ||
783 | /* Space the jumps apart with NOPs. */ | |
784 | for (i = 0; i < NOUVEAU_DMA_SKIPS; i++) | |
785 | OUT_RING(chan, 0); | |
786 | } | |
787 | ||
234896a7 | 788 | ret = nouveau_fence_new(chan, &fence, true); |
6ee73861 BS |
789 | if (ret) { |
790 | NV_ERROR(dev, "error fencing pushbuf: %d\n", ret); | |
791 | WIND_RING(chan); | |
792 | goto out; | |
793 | } | |
794 | ||
795 | out: | |
234896a7 LB |
796 | validate_fini(&op, fence); |
797 | nouveau_fence_unref((void**)&fence); | |
6ee73861 BS |
798 | mutex_unlock(&dev->struct_mutex); |
799 | kfree(bo); | |
800 | ||
801 | out_next: | |
9a391ad8 BS |
802 | if (chan->dma.ib_max) { |
803 | req->suffix0 = 0x00000000; | |
804 | req->suffix1 = 0x00000000; | |
805 | } else | |
2ccb04ec | 806 | if (dev_priv->card_type >= NV_20) { |
6ee73861 BS |
807 | req->suffix0 = 0x00020000; |
808 | req->suffix1 = 0x00000000; | |
809 | } else { | |
810 | req->suffix0 = 0x20000000 | | |
811 | (chan->pushbuf_base + ((chan->dma.cur + 2) << 2)); | |
812 | req->suffix1 = 0x00000000; | |
813 | } | |
814 | ||
815 | return ret; | |
816 | } | |
817 | ||
818 | int | |
819 | nouveau_gem_ioctl_pushbuf_call2(struct drm_device *dev, void *data, | |
820 | struct drm_file *file_priv) | |
821 | { | |
822 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
823 | struct drm_nouveau_gem_pushbuf_call *req = data; | |
824 | ||
825 | req->vram_available = dev_priv->fb_aper_free; | |
826 | req->gart_available = dev_priv->gart_info.aper_free; | |
827 | ||
828 | return nouveau_gem_ioctl_pushbuf_call(dev, data, file_priv); | |
829 | } | |
830 | ||
831 | static inline uint32_t | |
832 | domain_to_ttm(struct nouveau_bo *nvbo, uint32_t domain) | |
833 | { | |
834 | uint32_t flags = 0; | |
835 | ||
836 | if (domain & NOUVEAU_GEM_DOMAIN_VRAM) | |
837 | flags |= TTM_PL_FLAG_VRAM; | |
838 | if (domain & NOUVEAU_GEM_DOMAIN_GART) | |
839 | flags |= TTM_PL_FLAG_TT; | |
840 | ||
841 | return flags; | |
842 | } | |
843 | ||
844 | int | |
845 | nouveau_gem_ioctl_pin(struct drm_device *dev, void *data, | |
846 | struct drm_file *file_priv) | |
847 | { | |
848 | struct drm_nouveau_gem_pin *req = data; | |
849 | struct drm_gem_object *gem; | |
850 | struct nouveau_bo *nvbo; | |
851 | int ret = 0; | |
852 | ||
853 | NOUVEAU_CHECK_INITIALISED_WITH_RETURN; | |
854 | ||
855 | if (drm_core_check_feature(dev, DRIVER_MODESET)) { | |
856 | NV_ERROR(dev, "pin only allowed without kernel modesetting\n"); | |
857 | return -EINVAL; | |
858 | } | |
859 | ||
860 | if (!DRM_SUSER(DRM_CURPROC)) | |
861 | return -EPERM; | |
862 | ||
863 | gem = drm_gem_object_lookup(dev, file_priv, req->handle); | |
864 | if (!gem) | |
865 | return -EINVAL; | |
866 | nvbo = nouveau_gem_object(gem); | |
867 | ||
868 | ret = nouveau_bo_pin(nvbo, domain_to_ttm(nvbo, req->domain)); | |
869 | if (ret) | |
870 | goto out; | |
871 | ||
872 | req->offset = nvbo->bo.offset; | |
873 | if (nvbo->bo.mem.mem_type == TTM_PL_TT) | |
874 | req->domain = NOUVEAU_GEM_DOMAIN_GART; | |
875 | else | |
876 | req->domain = NOUVEAU_GEM_DOMAIN_VRAM; | |
877 | ||
878 | out: | |
879 | mutex_lock(&dev->struct_mutex); | |
880 | drm_gem_object_unreference(gem); | |
881 | mutex_unlock(&dev->struct_mutex); | |
882 | ||
883 | return ret; | |
884 | } | |
885 | ||
886 | int | |
887 | nouveau_gem_ioctl_unpin(struct drm_device *dev, void *data, | |
888 | struct drm_file *file_priv) | |
889 | { | |
890 | struct drm_nouveau_gem_pin *req = data; | |
891 | struct drm_gem_object *gem; | |
892 | int ret; | |
893 | ||
894 | NOUVEAU_CHECK_INITIALISED_WITH_RETURN; | |
895 | ||
896 | if (drm_core_check_feature(dev, DRIVER_MODESET)) | |
897 | return -EINVAL; | |
898 | ||
899 | gem = drm_gem_object_lookup(dev, file_priv, req->handle); | |
900 | if (!gem) | |
901 | return -EINVAL; | |
902 | ||
903 | ret = nouveau_bo_unpin(nouveau_gem_object(gem)); | |
904 | ||
905 | mutex_lock(&dev->struct_mutex); | |
906 | drm_gem_object_unreference(gem); | |
907 | mutex_unlock(&dev->struct_mutex); | |
908 | ||
909 | return ret; | |
910 | } | |
911 | ||
912 | int | |
913 | nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data, | |
914 | struct drm_file *file_priv) | |
915 | { | |
916 | struct drm_nouveau_gem_cpu_prep *req = data; | |
917 | struct drm_gem_object *gem; | |
918 | struct nouveau_bo *nvbo; | |
919 | bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT); | |
920 | int ret = -EINVAL; | |
921 | ||
922 | NOUVEAU_CHECK_INITIALISED_WITH_RETURN; | |
923 | ||
924 | gem = drm_gem_object_lookup(dev, file_priv, req->handle); | |
925 | if (!gem) | |
926 | return ret; | |
927 | nvbo = nouveau_gem_object(gem); | |
928 | ||
929 | if (nvbo->cpu_filp) { | |
930 | if (nvbo->cpu_filp == file_priv) | |
931 | goto out; | |
932 | ||
933 | ret = ttm_bo_wait_cpu(&nvbo->bo, no_wait); | |
6ee73861 BS |
934 | if (ret) |
935 | goto out; | |
936 | } | |
937 | ||
938 | if (req->flags & NOUVEAU_GEM_CPU_PREP_NOBLOCK) { | |
f0fbe3eb | 939 | spin_lock(&nvbo->bo.lock); |
6ee73861 | 940 | ret = ttm_bo_wait(&nvbo->bo, false, false, no_wait); |
f0fbe3eb | 941 | spin_unlock(&nvbo->bo.lock); |
6ee73861 BS |
942 | } else { |
943 | ret = ttm_bo_synccpu_write_grab(&nvbo->bo, no_wait); | |
6ee73861 BS |
944 | if (ret == 0) |
945 | nvbo->cpu_filp = file_priv; | |
946 | } | |
947 | ||
948 | out: | |
949 | mutex_lock(&dev->struct_mutex); | |
950 | drm_gem_object_unreference(gem); | |
951 | mutex_unlock(&dev->struct_mutex); | |
952 | return ret; | |
953 | } | |
954 | ||
955 | int | |
956 | nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data, | |
957 | struct drm_file *file_priv) | |
958 | { | |
959 | struct drm_nouveau_gem_cpu_prep *req = data; | |
960 | struct drm_gem_object *gem; | |
961 | struct nouveau_bo *nvbo; | |
962 | int ret = -EINVAL; | |
963 | ||
964 | NOUVEAU_CHECK_INITIALISED_WITH_RETURN; | |
965 | ||
966 | gem = drm_gem_object_lookup(dev, file_priv, req->handle); | |
967 | if (!gem) | |
968 | return ret; | |
969 | nvbo = nouveau_gem_object(gem); | |
970 | ||
971 | if (nvbo->cpu_filp != file_priv) | |
972 | goto out; | |
973 | nvbo->cpu_filp = NULL; | |
974 | ||
975 | ttm_bo_synccpu_write_release(&nvbo->bo); | |
976 | ret = 0; | |
977 | ||
978 | out: | |
979 | mutex_lock(&dev->struct_mutex); | |
980 | drm_gem_object_unreference(gem); | |
981 | mutex_unlock(&dev->struct_mutex); | |
982 | return ret; | |
983 | } | |
984 | ||
985 | int | |
986 | nouveau_gem_ioctl_info(struct drm_device *dev, void *data, | |
987 | struct drm_file *file_priv) | |
988 | { | |
989 | struct drm_nouveau_gem_info *req = data; | |
990 | struct drm_gem_object *gem; | |
991 | int ret; | |
992 | ||
993 | NOUVEAU_CHECK_INITIALISED_WITH_RETURN; | |
994 | ||
995 | gem = drm_gem_object_lookup(dev, file_priv, req->handle); | |
996 | if (!gem) | |
997 | return -EINVAL; | |
998 | ||
999 | ret = nouveau_gem_info(gem, req); | |
1000 | mutex_lock(&dev->struct_mutex); | |
1001 | drm_gem_object_unreference(gem); | |
1002 | mutex_unlock(&dev->struct_mutex); | |
1003 | return ret; | |
1004 | } | |
1005 |