1 /*
2 * Copyright 2012 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 */
23
24 #include <nvif/client.h>
25 #include <nvif/driver.h>
26 #include <nvif/fifo.h>
27 #include <nvif/ioctl.h>
28 #include <nvif/class.h>
29 #include <nvif/cl0002.h>
30 #include <nvif/unpack.h>
31
32 #include "nouveau_drv.h"
33 #include "nouveau_dma.h"
34 #include "nouveau_exec.h"
35 #include "nouveau_gem.h"
36 #include "nouveau_chan.h"
37 #include "nouveau_abi16.h"
38 #include "nouveau_vmm.h"
39 #include "nouveau_sched.h"
40
41 static struct nouveau_abi16 *
nouveau_abi16(struct drm_file * file_priv)42 nouveau_abi16(struct drm_file *file_priv)
43 {
44 struct nouveau_cli *cli = nouveau_cli(file_priv);
45 if (!cli->abi16) {
46 struct nouveau_abi16 *abi16;
47 cli->abi16 = abi16 = kzalloc(sizeof(*abi16), GFP_KERNEL);
48 if (cli->abi16) {
49 struct nv_device_v0 args = {
50 .device = ~0ULL,
51 };
52
53 INIT_LIST_HEAD(&abi16->channels);
54
55 /* allocate device object targeting client's default
56 * device (ie. the one that belongs to the fd it
57 * opened)
58 */
59 if (nvif_device_ctor(&cli->base.object, "abi16Device",
60 0, NV_DEVICE, &args, sizeof(args),
61 &abi16->device) == 0)
62 return cli->abi16;
63
64 kfree(cli->abi16);
65 cli->abi16 = NULL;
66 }
67 }
68 return cli->abi16;
69 }
70
71 struct nouveau_abi16 *
nouveau_abi16_get(struct drm_file * file_priv)72 nouveau_abi16_get(struct drm_file *file_priv)
73 {
74 struct nouveau_cli *cli = nouveau_cli(file_priv);
75 mutex_lock(&cli->mutex);
76 if (nouveau_abi16(file_priv))
77 return cli->abi16;
78 mutex_unlock(&cli->mutex);
79 return NULL;
80 }
81
82 int
nouveau_abi16_put(struct nouveau_abi16 * abi16,int ret)83 nouveau_abi16_put(struct nouveau_abi16 *abi16, int ret)
84 {
85 struct nouveau_cli *cli = (void *)abi16->device.object.client;
86 mutex_unlock(&cli->mutex);
87 return ret;
88 }
89
90 s32
nouveau_abi16_swclass(struct nouveau_drm * drm)91 nouveau_abi16_swclass(struct nouveau_drm *drm)
92 {
93 switch (drm->client.device.info.family) {
94 case NV_DEVICE_INFO_V0_TNT:
95 return NVIF_CLASS_SW_NV04;
96 case NV_DEVICE_INFO_V0_CELSIUS:
97 case NV_DEVICE_INFO_V0_KELVIN:
98 case NV_DEVICE_INFO_V0_RANKINE:
99 case NV_DEVICE_INFO_V0_CURIE:
100 return NVIF_CLASS_SW_NV10;
101 case NV_DEVICE_INFO_V0_TESLA:
102 return NVIF_CLASS_SW_NV50;
103 case NV_DEVICE_INFO_V0_FERMI:
104 case NV_DEVICE_INFO_V0_KEPLER:
105 case NV_DEVICE_INFO_V0_MAXWELL:
106 case NV_DEVICE_INFO_V0_PASCAL:
107 case NV_DEVICE_INFO_V0_VOLTA:
108 return NVIF_CLASS_SW_GF100;
109 }
110
111 return 0x0000;
112 }
113
114 static void
nouveau_abi16_ntfy_fini(struct nouveau_abi16_chan * chan,struct nouveau_abi16_ntfy * ntfy)115 nouveau_abi16_ntfy_fini(struct nouveau_abi16_chan *chan,
116 struct nouveau_abi16_ntfy *ntfy)
117 {
118 nvif_object_dtor(&ntfy->object);
119 nvkm_mm_free(&chan->heap, &ntfy->node);
120 list_del(&ntfy->head);
121 kfree(ntfy);
122 }
123
124 static void
nouveau_abi16_chan_fini(struct nouveau_abi16 * abi16,struct nouveau_abi16_chan * chan)125 nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16,
126 struct nouveau_abi16_chan *chan)
127 {
128 struct nouveau_abi16_ntfy *ntfy, *temp;
129
130 /* When a client exits without waiting for it's queued up jobs to
131 * finish it might happen that we fault the channel. This is due to
132 * drm_file_free() calling drm_gem_release() before the postclose()
133 * callback. Hence, we can't tear down this scheduler entity before
134 * uvmm mappings are unmapped. Currently, we can't detect this case.
135 *
136 * However, this should be rare and harmless, since the channel isn't
137 * needed anymore.
138 */
139 nouveau_sched_entity_fini(&chan->sched_entity);
140
141 /* wait for all activity to stop before cleaning up */
142 if (chan->chan)
143 nouveau_channel_idle(chan->chan);
144
145 /* cleanup notifier state */
146 list_for_each_entry_safe(ntfy, temp, &chan->notifiers, head) {
147 nouveau_abi16_ntfy_fini(chan, ntfy);
148 }
149
150 if (chan->ntfy) {
151 nouveau_vma_del(&chan->ntfy_vma);
152 nouveau_bo_unpin(chan->ntfy);
153 drm_gem_object_put(&chan->ntfy->bo.base);
154 }
155
156 if (chan->heap.block_size)
157 nvkm_mm_fini(&chan->heap);
158
159 /* destroy channel object, all children will be killed too */
160 if (chan->chan) {
161 nvif_object_dtor(&chan->ce);
162 nouveau_channel_del(&chan->chan);
163 }
164
165 list_del(&chan->head);
166 kfree(chan);
167 }
168
169 void
nouveau_abi16_fini(struct nouveau_abi16 * abi16)170 nouveau_abi16_fini(struct nouveau_abi16 *abi16)
171 {
172 struct nouveau_cli *cli = (void *)abi16->device.object.client;
173 struct nouveau_abi16_chan *chan, *temp;
174
175 /* cleanup channels */
176 list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
177 nouveau_abi16_chan_fini(abi16, chan);
178 }
179
180 /* destroy the device object */
181 nvif_device_dtor(&abi16->device);
182
183 kfree(cli->abi16);
184 cli->abi16 = NULL;
185 }
186
187 static inline int
getparam_dma_ib_max(struct nvif_device * device)188 getparam_dma_ib_max(struct nvif_device *device)
189 {
190 const struct nvif_mclass dmas[] = {
191 { NV03_CHANNEL_DMA, 0 },
192 { NV10_CHANNEL_DMA, 0 },
193 { NV17_CHANNEL_DMA, 0 },
194 { NV40_CHANNEL_DMA, 0 },
195 {}
196 };
197
198 return nvif_mclass(&device->object, dmas) < 0 ? NV50_DMA_IB_MAX : 0;
199 }
200
201 int
nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)202 nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
203 {
204 struct nouveau_cli *cli = nouveau_cli(file_priv);
205 struct nouveau_drm *drm = nouveau_drm(dev);
206 struct nvif_device *device = &drm->client.device;
207 struct nvkm_device *nvkm_device = nvxx_device(&drm->client.device);
208 struct nvkm_gr *gr = nvxx_gr(device);
209 struct drm_nouveau_getparam *getparam = data;
210 struct pci_dev *pdev = to_pci_dev(dev->dev);
211
212 switch (getparam->param) {
213 case NOUVEAU_GETPARAM_CHIPSET_ID:
214 getparam->value = device->info.chipset;
215 break;
216 case NOUVEAU_GETPARAM_PCI_VENDOR:
217 if (device->info.platform != NV_DEVICE_INFO_V0_SOC)
218 getparam->value = pdev->vendor;
219 else
220 getparam->value = 0;
221 break;
222 case NOUVEAU_GETPARAM_PCI_DEVICE:
223 if (device->info.platform != NV_DEVICE_INFO_V0_SOC)
224 getparam->value = pdev->device;
225 else
226 getparam->value = 0;
227 break;
228 case NOUVEAU_GETPARAM_BUS_TYPE:
229 switch (device->info.platform) {
230 case NV_DEVICE_INFO_V0_AGP : getparam->value = 0; break;
231 case NV_DEVICE_INFO_V0_PCI : getparam->value = 1; break;
232 case NV_DEVICE_INFO_V0_PCIE: getparam->value = 2; break;
233 case NV_DEVICE_INFO_V0_SOC : getparam->value = 3; break;
234 case NV_DEVICE_INFO_V0_IGP :
235 if (!pci_is_pcie(pdev))
236 getparam->value = 1;
237 else
238 getparam->value = 2;
239 break;
240 default:
241 WARN_ON(1);
242 break;
243 }
244 break;
245 case NOUVEAU_GETPARAM_FB_SIZE:
246 getparam->value = drm->gem.vram_available;
247 break;
248 case NOUVEAU_GETPARAM_AGP_SIZE:
249 getparam->value = drm->gem.gart_available;
250 break;
251 case NOUVEAU_GETPARAM_VM_VRAM_BASE:
252 getparam->value = 0; /* deprecated */
253 break;
254 case NOUVEAU_GETPARAM_PTIMER_TIME:
255 getparam->value = nvif_device_time(device);
256 break;
257 case NOUVEAU_GETPARAM_HAS_BO_USAGE:
258 getparam->value = 1;
259 break;
260 case NOUVEAU_GETPARAM_HAS_PAGEFLIP:
261 getparam->value = 1;
262 break;
263 case NOUVEAU_GETPARAM_GRAPH_UNITS:
264 getparam->value = nvkm_gr_units(gr);
265 break;
266 case NOUVEAU_GETPARAM_EXEC_PUSH_MAX: {
267 int ib_max = getparam_dma_ib_max(device);
268
269 getparam->value = nouveau_exec_push_max_from_ib_max(ib_max);
270 break;
271 }
272 case NOUVEAU_GETPARAM_VRAM_BAR_SIZE:
273 getparam->value = nvkm_device->func->resource_size(nvkm_device, 1);
274 break;
275 case NOUVEAU_GETPARAM_VRAM_USED: {
276 struct ttm_resource_manager *vram_mgr = ttm_manager_type(&drm->ttm.bdev, TTM_PL_VRAM);
277 getparam->value = (u64)ttm_resource_manager_usage(vram_mgr);
278 break;
279 }
280 case NOUVEAU_GETPARAM_HAS_VMA_TILEMODE:
281 getparam->value = 1;
282 break;
283 default:
284 NV_PRINTK(dbg, cli, "unknown parameter %lld\n", getparam->param);
285 return -EINVAL;
286 }
287
288 return 0;
289 }
290
291 int
nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)292 nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
293 {
294 struct drm_nouveau_channel_alloc *init = data;
295 struct nouveau_cli *cli = nouveau_cli(file_priv);
296 struct nouveau_drm *drm = nouveau_drm(dev);
297 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
298 struct nouveau_abi16_chan *chan;
299 struct nvif_device *device;
300 u64 engine, runm;
301 int ret;
302
303 if (unlikely(!abi16))
304 return -ENOMEM;
305
306 if (!drm->channel)
307 return nouveau_abi16_put(abi16, -ENODEV);
308
309 /* If uvmm wasn't initialized until now disable it completely to prevent
310 * userspace from mixing up UAPIs.
311 *
312 * The client lock is already acquired by nouveau_abi16_get().
313 */
314 __nouveau_cli_disable_uvmm_noinit(cli);
315
316 device = &abi16->device;
317 engine = NV_DEVICE_HOST_RUNLIST_ENGINES_GR;
318
319 /* hack to allow channel engine type specification on kepler */
320 if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
321 if (init->fb_ctxdma_handle == ~0) {
322 switch (init->tt_ctxdma_handle) {
323 case 0x01: engine = NV_DEVICE_HOST_RUNLIST_ENGINES_GR ; break;
324 case 0x02: engine = NV_DEVICE_HOST_RUNLIST_ENGINES_MSPDEC; break;
325 case 0x04: engine = NV_DEVICE_HOST_RUNLIST_ENGINES_MSPPP ; break;
326 case 0x08: engine = NV_DEVICE_HOST_RUNLIST_ENGINES_MSVLD ; break;
327 case 0x30: engine = NV_DEVICE_HOST_RUNLIST_ENGINES_CE ; break;
328 default:
329 return nouveau_abi16_put(abi16, -ENOSYS);
330 }
331
332 init->fb_ctxdma_handle = 0;
333 init->tt_ctxdma_handle = 0;
334 }
335 }
336
337 if (engine != NV_DEVICE_HOST_RUNLIST_ENGINES_CE)
338 runm = nvif_fifo_runlist(device, engine);
339 else
340 runm = nvif_fifo_runlist_ce(device);
341
342 if (!runm || init->fb_ctxdma_handle == ~0 || init->tt_ctxdma_handle == ~0)
343 return nouveau_abi16_put(abi16, -EINVAL);
344
345 /* allocate "abi16 channel" data and make up a handle for it */
346 chan = kzalloc(sizeof(*chan), GFP_KERNEL);
347 if (!chan)
348 return nouveau_abi16_put(abi16, -ENOMEM);
349
350 INIT_LIST_HEAD(&chan->notifiers);
351 list_add(&chan->head, &abi16->channels);
352
353 /* create channel object and initialise dma and fence management */
354 ret = nouveau_channel_new(cli, false, runm, init->fb_ctxdma_handle,
355 init->tt_ctxdma_handle, &chan->chan);
356 if (ret)
357 goto done;
358
359 ret = nouveau_sched_entity_init(&chan->sched_entity, &drm->sched,
360 drm->sched_wq);
361 if (ret)
362 goto done;
363
364 init->channel = chan->chan->chid;
365
366 if (device->info.family >= NV_DEVICE_INFO_V0_TESLA)
367 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM |
368 NOUVEAU_GEM_DOMAIN_GART;
369 else
370 if (chan->chan->push.buffer->bo.resource->mem_type == TTM_PL_VRAM)
371 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM;
372 else
373 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_GART;
374
375 if (device->info.family < NV_DEVICE_INFO_V0_CELSIUS) {
376 init->subchan[0].handle = 0x00000000;
377 init->subchan[0].grclass = 0x0000;
378 init->subchan[1].handle = chan->chan->nvsw.handle;
379 init->subchan[1].grclass = 0x506e;
380 init->nr_subchan = 2;
381 }
382
383 /* Workaround "nvc0" gallium driver using classes it doesn't allocate on
384 * Kepler and above. NVKM no longer always sets CE_CTX_VALID as part of
385 * channel init, now we know what that stuff actually is.
386 *
387 * Doesn't matter for Kepler/Pascal, CE context stored in NV_RAMIN.
388 *
389 * Userspace was fixed prior to adding Ampere support.
390 */
391 switch (device->info.family) {
392 case NV_DEVICE_INFO_V0_VOLTA:
393 ret = nvif_object_ctor(&chan->chan->user, "abi16CeWar", 0, VOLTA_DMA_COPY_A,
394 NULL, 0, &chan->ce);
395 if (ret)
396 goto done;
397 break;
398 case NV_DEVICE_INFO_V0_TURING:
399 ret = nvif_object_ctor(&chan->chan->user, "abi16CeWar", 0, TURING_DMA_COPY_A,
400 NULL, 0, &chan->ce);
401 if (ret)
402 goto done;
403 break;
404 default:
405 break;
406 }
407
408 /* Named memory object area */
409 ret = nouveau_gem_new(cli, PAGE_SIZE, 0, NOUVEAU_GEM_DOMAIN_GART,
410 0, 0, &chan->ntfy);
411 if (ret == 0)
412 ret = nouveau_bo_pin(chan->ntfy, NOUVEAU_GEM_DOMAIN_GART,
413 false);
414 if (ret)
415 goto done;
416
417 if (device->info.family >= NV_DEVICE_INFO_V0_TESLA) {
418 ret = nouveau_vma_new(chan->ntfy, chan->chan->vmm,
419 &chan->ntfy_vma);
420 if (ret)
421 goto done;
422 }
423
424 ret = drm_gem_handle_create(file_priv, &chan->ntfy->bo.base,
425 &init->notifier_handle);
426 if (ret)
427 goto done;
428
429 ret = nvkm_mm_init(&chan->heap, 0, 0, PAGE_SIZE, 1);
430 done:
431 if (ret)
432 nouveau_abi16_chan_fini(abi16, chan);
433 return nouveau_abi16_put(abi16, ret);
434 }
435
436 static struct nouveau_abi16_chan *
nouveau_abi16_chan(struct nouveau_abi16 * abi16,int channel)437 nouveau_abi16_chan(struct nouveau_abi16 *abi16, int channel)
438 {
439 struct nouveau_abi16_chan *chan;
440
441 list_for_each_entry(chan, &abi16->channels, head) {
442 if (chan->chan->chid == channel)
443 return chan;
444 }
445
446 return NULL;
447 }
448
449 int
nouveau_abi16_usif(struct drm_file * file_priv,void * data,u32 size)450 nouveau_abi16_usif(struct drm_file *file_priv, void *data, u32 size)
451 {
452 union {
453 struct nvif_ioctl_v0 v0;
454 } *args = data;
455 struct nouveau_abi16_chan *chan;
456 struct nouveau_abi16 *abi16;
457 int ret = -ENOSYS;
458
459 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) {
460 switch (args->v0.type) {
461 case NVIF_IOCTL_V0_NEW:
462 case NVIF_IOCTL_V0_MTHD:
463 case NVIF_IOCTL_V0_SCLASS:
464 break;
465 default:
466 return -EACCES;
467 }
468 } else
469 return ret;
470
471 if (!(abi16 = nouveau_abi16(file_priv)))
472 return -ENOMEM;
473
474 if (args->v0.token != ~0ULL) {
475 if (!(chan = nouveau_abi16_chan(abi16, args->v0.token)))
476 return -EINVAL;
477 args->v0.object = nvif_handle(&chan->chan->user);
478 args->v0.owner = NVIF_IOCTL_V0_OWNER_ANY;
479 return 0;
480 }
481
482 args->v0.object = nvif_handle(&abi16->device.object);
483 args->v0.owner = NVIF_IOCTL_V0_OWNER_ANY;
484 return 0;
485 }
486
487 int
nouveau_abi16_ioctl_channel_free(ABI16_IOCTL_ARGS)488 nouveau_abi16_ioctl_channel_free(ABI16_IOCTL_ARGS)
489 {
490 struct drm_nouveau_channel_free *req = data;
491 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
492 struct nouveau_abi16_chan *chan;
493
494 if (unlikely(!abi16))
495 return -ENOMEM;
496
497 chan = nouveau_abi16_chan(abi16, req->channel);
498 if (!chan)
499 return nouveau_abi16_put(abi16, -ENOENT);
500 nouveau_abi16_chan_fini(abi16, chan);
501 return nouveau_abi16_put(abi16, 0);
502 }
503
504 int
nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)505 nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)
506 {
507 struct drm_nouveau_grobj_alloc *init = data;
508 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
509 struct nouveau_abi16_chan *chan;
510 struct nouveau_abi16_ntfy *ntfy;
511 struct nvif_client *client;
512 struct nvif_sclass *sclass;
513 s32 oclass = 0;
514 int ret, i;
515
516 if (unlikely(!abi16))
517 return -ENOMEM;
518
519 if (init->handle == ~0)
520 return nouveau_abi16_put(abi16, -EINVAL);
521 client = abi16->device.object.client;
522
523 chan = nouveau_abi16_chan(abi16, init->channel);
524 if (!chan)
525 return nouveau_abi16_put(abi16, -ENOENT);
526
527 ret = nvif_object_sclass_get(&chan->chan->user, &sclass);
528 if (ret < 0)
529 return nouveau_abi16_put(abi16, ret);
530
531 if ((init->class & 0x00ff) == 0x006e) {
532 /* nvsw: compatibility with older 0x*6e class identifier */
533 for (i = 0; !oclass && i < ret; i++) {
534 switch (sclass[i].oclass) {
535 case NVIF_CLASS_SW_NV04:
536 case NVIF_CLASS_SW_NV10:
537 case NVIF_CLASS_SW_NV50:
538 case NVIF_CLASS_SW_GF100:
539 oclass = sclass[i].oclass;
540 break;
541 default:
542 break;
543 }
544 }
545 } else
546 if ((init->class & 0x00ff) == 0x00b1) {
547 /* msvld: compatibility with incorrect version exposure */
548 for (i = 0; i < ret; i++) {
549 if ((sclass[i].oclass & 0x00ff) == 0x00b1) {
550 oclass = sclass[i].oclass;
551 break;
552 }
553 }
554 } else
555 if ((init->class & 0x00ff) == 0x00b2) { /* mspdec */
556 /* mspdec: compatibility with incorrect version exposure */
557 for (i = 0; i < ret; i++) {
558 if ((sclass[i].oclass & 0x00ff) == 0x00b2) {
559 oclass = sclass[i].oclass;
560 break;
561 }
562 }
563 } else
564 if ((init->class & 0x00ff) == 0x00b3) { /* msppp */
565 /* msppp: compatibility with incorrect version exposure */
566 for (i = 0; i < ret; i++) {
567 if ((sclass[i].oclass & 0x00ff) == 0x00b3) {
568 oclass = sclass[i].oclass;
569 break;
570 }
571 }
572 } else {
573 oclass = init->class;
574 }
575
576 nvif_object_sclass_put(&sclass);
577 if (!oclass)
578 return nouveau_abi16_put(abi16, -EINVAL);
579
580 ntfy = kzalloc(sizeof(*ntfy), GFP_KERNEL);
581 if (!ntfy)
582 return nouveau_abi16_put(abi16, -ENOMEM);
583
584 list_add(&ntfy->head, &chan->notifiers);
585
586 client->route = NVDRM_OBJECT_ABI16;
587 ret = nvif_object_ctor(&chan->chan->user, "abi16EngObj", init->handle,
588 oclass, NULL, 0, &ntfy->object);
589 client->route = NVDRM_OBJECT_NVIF;
590
591 if (ret)
592 nouveau_abi16_ntfy_fini(chan, ntfy);
593 return nouveau_abi16_put(abi16, ret);
594 }
595
596 int
nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)597 nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
598 {
599 struct drm_nouveau_notifierobj_alloc *info = data;
600 struct nouveau_drm *drm = nouveau_drm(dev);
601 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
602 struct nouveau_abi16_chan *chan;
603 struct nouveau_abi16_ntfy *ntfy;
604 struct nvif_device *device = &abi16->device;
605 struct nvif_client *client;
606 struct nv_dma_v0 args = {};
607 int ret;
608
609 if (unlikely(!abi16))
610 return -ENOMEM;
611
612 /* completely unnecessary for these chipsets... */
613 if (unlikely(device->info.family >= NV_DEVICE_INFO_V0_FERMI))
614 return nouveau_abi16_put(abi16, -EINVAL);
615 client = abi16->device.object.client;
616
617 chan = nouveau_abi16_chan(abi16, info->channel);
618 if (!chan)
619 return nouveau_abi16_put(abi16, -ENOENT);
620
621 ntfy = kzalloc(sizeof(*ntfy), GFP_KERNEL);
622 if (!ntfy)
623 return nouveau_abi16_put(abi16, -ENOMEM);
624
625 list_add(&ntfy->head, &chan->notifiers);
626
627 ret = nvkm_mm_head(&chan->heap, 0, 1, info->size, info->size, 1,
628 &ntfy->node);
629 if (ret)
630 goto done;
631
632 args.start = ntfy->node->offset;
633 args.limit = ntfy->node->offset + ntfy->node->length - 1;
634 if (device->info.family >= NV_DEVICE_INFO_V0_TESLA) {
635 args.target = NV_DMA_V0_TARGET_VM;
636 args.access = NV_DMA_V0_ACCESS_VM;
637 args.start += chan->ntfy_vma->addr;
638 args.limit += chan->ntfy_vma->addr;
639 } else
640 if (drm->agp.bridge) {
641 args.target = NV_DMA_V0_TARGET_AGP;
642 args.access = NV_DMA_V0_ACCESS_RDWR;
643 args.start += drm->agp.base + chan->ntfy->offset;
644 args.limit += drm->agp.base + chan->ntfy->offset;
645 } else {
646 args.target = NV_DMA_V0_TARGET_VM;
647 args.access = NV_DMA_V0_ACCESS_RDWR;
648 args.start += chan->ntfy->offset;
649 args.limit += chan->ntfy->offset;
650 }
651
652 client->route = NVDRM_OBJECT_ABI16;
653 ret = nvif_object_ctor(&chan->chan->user, "abi16Ntfy", info->handle,
654 NV_DMA_IN_MEMORY, &args, sizeof(args),
655 &ntfy->object);
656 client->route = NVDRM_OBJECT_NVIF;
657 if (ret)
658 goto done;
659
660 info->offset = ntfy->node->offset;
661 done:
662 if (ret)
663 nouveau_abi16_ntfy_fini(chan, ntfy);
664 return nouveau_abi16_put(abi16, ret);
665 }
666
667 int
nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS)668 nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS)
669 {
670 struct drm_nouveau_gpuobj_free *fini = data;
671 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
672 struct nouveau_abi16_chan *chan;
673 struct nouveau_abi16_ntfy *ntfy;
674 int ret = -ENOENT;
675
676 if (unlikely(!abi16))
677 return -ENOMEM;
678
679 chan = nouveau_abi16_chan(abi16, fini->channel);
680 if (!chan)
681 return nouveau_abi16_put(abi16, -EINVAL);
682
683 /* synchronize with the user channel and destroy the gpu object */
684 nouveau_channel_idle(chan->chan);
685
686 list_for_each_entry(ntfy, &chan->notifiers, head) {
687 if (ntfy->object.handle == fini->handle) {
688 nouveau_abi16_ntfy_fini(chan, ntfy);
689 ret = 0;
690 break;
691 }
692 }
693
694 return nouveau_abi16_put(abi16, ret);
695 }
696