1 /* $NetBSD: nouveau_abi16.c,v 1.2 2014/08/06 13:54:20 riastradh Exp $ */
2
3 /*
4 * Copyright 2012 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 */
25
26 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: nouveau_abi16.c,v 1.2 2014/08/06 13:54:20 riastradh Exp $");
28
29 #include <core/object.h>
30 #include <core/client.h>
31 #include <core/device.h>
32 #include <core/class.h>
33 #include <core/mm.h>
34
35 #include <subdev/fb.h>
36 #include <subdev/timer.h>
37 #include <subdev/instmem.h>
38 #include <engine/graph.h>
39
40 #include "nouveau_drm.h"
41 #include "nouveau_dma.h"
42 #include "nouveau_gem.h"
43 #include "nouveau_chan.h"
44 #include "nouveau_abi16.h"
45
46 struct nouveau_abi16 *
nouveau_abi16_get(struct drm_file * file_priv,struct drm_device * dev)47 nouveau_abi16_get(struct drm_file *file_priv, struct drm_device *dev)
48 {
49 struct nouveau_cli *cli = nouveau_cli(file_priv);
50 mutex_lock(&cli->mutex);
51 if (!cli->abi16) {
52 struct nouveau_abi16 *abi16;
53 cli->abi16 = abi16 = kzalloc(sizeof(*abi16), GFP_KERNEL);
54 if (cli->abi16) {
55 INIT_LIST_HEAD(&abi16->channels);
56 abi16->client = nv_object(cli);
57
58 /* allocate device object targeting client's default
59 * device (ie. the one that belongs to the fd it
60 * opened)
61 */
62 if (nouveau_object_new(abi16->client, NVDRM_CLIENT,
63 NVDRM_DEVICE, 0x0080,
64 &(struct nv_device_class) {
65 .device = ~0ULL,
66 },
67 sizeof(struct nv_device_class),
68 &abi16->device) == 0)
69 return cli->abi16;
70
71 kfree(cli->abi16);
72 cli->abi16 = NULL;
73 }
74
75 mutex_unlock(&cli->mutex);
76 }
77 return cli->abi16;
78 }
79
80 int
nouveau_abi16_put(struct nouveau_abi16 * abi16,int ret)81 nouveau_abi16_put(struct nouveau_abi16 *abi16, int ret)
82 {
83 struct nouveau_cli *cli = (void *)abi16->client;
84 mutex_unlock(&cli->mutex);
85 return ret;
86 }
87
88 u16
nouveau_abi16_swclass(struct nouveau_drm * drm)89 nouveau_abi16_swclass(struct nouveau_drm *drm)
90 {
91 switch (nv_device(drm->device)->card_type) {
92 case NV_04:
93 return 0x006e;
94 case NV_10:
95 case NV_11:
96 case NV_20:
97 case NV_30:
98 case NV_40:
99 return 0x016e;
100 case NV_50:
101 return 0x506e;
102 case NV_C0:
103 case NV_D0:
104 case NV_E0:
105 case GM100:
106 return 0x906e;
107 }
108
109 return 0x0000;
110 }
111
112 static void
nouveau_abi16_ntfy_fini(struct nouveau_abi16_chan * chan,struct nouveau_abi16_ntfy * ntfy)113 nouveau_abi16_ntfy_fini(struct nouveau_abi16_chan *chan,
114 struct nouveau_abi16_ntfy *ntfy)
115 {
116 nouveau_mm_free(&chan->heap, &ntfy->node);
117 list_del(&ntfy->head);
118 kfree(ntfy);
119 }
120
121 static void
nouveau_abi16_chan_fini(struct nouveau_abi16 * abi16,struct nouveau_abi16_chan * chan)122 nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16,
123 struct nouveau_abi16_chan *chan)
124 {
125 struct nouveau_abi16_ntfy *ntfy, *temp;
126
127 /* wait for all activity to stop before releasing notify object, which
128 * may be still in use */
129 if (chan->chan && chan->ntfy)
130 nouveau_channel_idle(chan->chan);
131
132 /* cleanup notifier state */
133 list_for_each_entry_safe(ntfy, temp, &chan->notifiers, head) {
134 nouveau_abi16_ntfy_fini(chan, ntfy);
135 }
136
137 if (chan->ntfy) {
138 nouveau_bo_vma_del(chan->ntfy, &chan->ntfy_vma);
139 nouveau_bo_unpin(chan->ntfy);
140 drm_gem_object_unreference_unlocked(&chan->ntfy->gem);
141 }
142
143 if (chan->heap.block_size)
144 nouveau_mm_fini(&chan->heap);
145
146 /* destroy channel object, all children will be killed too */
147 if (chan->chan) {
148 abi16->handles &= ~(1ULL << (chan->chan->handle & 0xffff));
149 nouveau_channel_del(&chan->chan);
150 }
151
152 list_del(&chan->head);
153 kfree(chan);
154 }
155
156 void
nouveau_abi16_fini(struct nouveau_abi16 * abi16)157 nouveau_abi16_fini(struct nouveau_abi16 *abi16)
158 {
159 struct nouveau_cli *cli = (void *)abi16->client;
160 struct nouveau_abi16_chan *chan, *temp;
161
162 /* cleanup channels */
163 list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
164 nouveau_abi16_chan_fini(abi16, chan);
165 }
166
167 /* destroy the device object */
168 nouveau_object_del(abi16->client, NVDRM_CLIENT, NVDRM_DEVICE);
169
170 kfree(cli->abi16);
171 cli->abi16 = NULL;
172 }
173
174 int
nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)175 nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
176 {
177 struct nouveau_drm *drm = nouveau_drm(dev);
178 struct nouveau_device *device = nv_device(drm->device);
179 struct nouveau_timer *ptimer = nouveau_timer(device);
180 struct nouveau_graph *graph = (void *)nouveau_engine(device, NVDEV_ENGINE_GR);
181 struct drm_nouveau_getparam *getparam = data;
182
183 switch (getparam->param) {
184 case NOUVEAU_GETPARAM_CHIPSET_ID:
185 getparam->value = device->chipset;
186 break;
187 case NOUVEAU_GETPARAM_PCI_VENDOR:
188 if (nv_device_is_pci(device))
189 getparam->value = dev->pdev->vendor;
190 else
191 getparam->value = 0;
192 break;
193 case NOUVEAU_GETPARAM_PCI_DEVICE:
194 if (nv_device_is_pci(device))
195 getparam->value = dev->pdev->device;
196 else
197 getparam->value = 0;
198 break;
199 case NOUVEAU_GETPARAM_BUS_TYPE:
200 if (!nv_device_is_pci(device))
201 getparam->value = 3;
202 else
203 if (drm_pci_device_is_agp(dev))
204 getparam->value = 0;
205 else
206 if (!pci_is_pcie(dev->pdev))
207 getparam->value = 1;
208 else
209 getparam->value = 2;
210 break;
211 case NOUVEAU_GETPARAM_FB_SIZE:
212 getparam->value = drm->gem.vram_available;
213 break;
214 case NOUVEAU_GETPARAM_AGP_SIZE:
215 getparam->value = drm->gem.gart_available;
216 break;
217 case NOUVEAU_GETPARAM_VM_VRAM_BASE:
218 getparam->value = 0; /* deprecated */
219 break;
220 case NOUVEAU_GETPARAM_PTIMER_TIME:
221 getparam->value = ptimer->read(ptimer);
222 break;
223 case NOUVEAU_GETPARAM_HAS_BO_USAGE:
224 getparam->value = 1;
225 break;
226 case NOUVEAU_GETPARAM_HAS_PAGEFLIP:
227 getparam->value = 1;
228 break;
229 case NOUVEAU_GETPARAM_GRAPH_UNITS:
230 getparam->value = graph->units ? graph->units(graph) : 0;
231 break;
232 default:
233 nv_debug(device, "unknown parameter %"PRId64"\n",
234 getparam->param);
235 return -EINVAL;
236 }
237
238 return 0;
239 }
240
241 int
nouveau_abi16_ioctl_setparam(ABI16_IOCTL_ARGS)242 nouveau_abi16_ioctl_setparam(ABI16_IOCTL_ARGS)
243 {
244 return -EINVAL;
245 }
246
247 int
nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)248 nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
249 {
250 struct drm_nouveau_channel_alloc *init = data;
251 struct nouveau_cli *cli = nouveau_cli(file_priv);
252 struct nouveau_drm *drm = nouveau_drm(dev);
253 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
254 struct nouveau_abi16_chan *chan;
255 struct nouveau_client *client;
256 struct nouveau_device *device;
257 int ret;
258
259 if (unlikely(!abi16))
260 return -ENOMEM;
261
262 if (!drm->channel)
263 return nouveau_abi16_put(abi16, -ENODEV);
264
265 client = nv_client(abi16->client);
266 device = nv_device(abi16->device);
267
268 /* hack to allow channel engine type specification on kepler */
269 if (device->card_type >= NV_E0) {
270 if (init->fb_ctxdma_handle != ~0)
271 init->fb_ctxdma_handle = NVE0_CHANNEL_IND_ENGINE_GR;
272 else
273 init->fb_ctxdma_handle = init->tt_ctxdma_handle;
274
275 /* allow flips to be executed if this is a graphics channel */
276 init->tt_ctxdma_handle = 0;
277 if (init->fb_ctxdma_handle == NVE0_CHANNEL_IND_ENGINE_GR)
278 init->tt_ctxdma_handle = 1;
279 }
280
281 if (init->fb_ctxdma_handle == ~0 || init->tt_ctxdma_handle == ~0)
282 return nouveau_abi16_put(abi16, -EINVAL);
283
284 /* allocate "abi16 channel" data and make up a handle for it */
285 init->channel = __ffs64(~abi16->handles);
286 if (~abi16->handles == 0)
287 return nouveau_abi16_put(abi16, -ENOSPC);
288
289 chan = kzalloc(sizeof(*chan), GFP_KERNEL);
290 if (!chan)
291 return nouveau_abi16_put(abi16, -ENOMEM);
292
293 INIT_LIST_HEAD(&chan->notifiers);
294 list_add(&chan->head, &abi16->channels);
295 abi16->handles |= (1ULL << init->channel);
296
297 /* create channel object and initialise dma and fence management */
298 ret = nouveau_channel_new(drm, cli, NVDRM_DEVICE, NVDRM_CHAN |
299 init->channel, init->fb_ctxdma_handle,
300 init->tt_ctxdma_handle, &chan->chan);
301 if (ret)
302 goto done;
303
304 if (device->card_type >= NV_50)
305 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM |
306 NOUVEAU_GEM_DOMAIN_GART;
307 else
308 if (chan->chan->push.buffer->bo.mem.mem_type == TTM_PL_VRAM)
309 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM;
310 else
311 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_GART;
312
313 if (device->card_type < NV_10) {
314 init->subchan[0].handle = 0x00000000;
315 init->subchan[0].grclass = 0x0000;
316 init->subchan[1].handle = NvSw;
317 init->subchan[1].grclass = 0x506e;
318 init->nr_subchan = 2;
319 }
320
321 /* Named memory object area */
322 ret = nouveau_gem_new(dev, PAGE_SIZE, 0, NOUVEAU_GEM_DOMAIN_GART,
323 0, 0, &chan->ntfy);
324 if (ret == 0)
325 ret = nouveau_bo_pin(chan->ntfy, TTM_PL_FLAG_TT);
326 if (ret)
327 goto done;
328
329 if (device->card_type >= NV_50) {
330 ret = nouveau_bo_vma_add(chan->ntfy, client->vm,
331 &chan->ntfy_vma);
332 if (ret)
333 goto done;
334 }
335
336 ret = drm_gem_handle_create(file_priv, &chan->ntfy->gem,
337 &init->notifier_handle);
338 if (ret)
339 goto done;
340
341 ret = nouveau_mm_init(&chan->heap, 0, PAGE_SIZE, 1);
342 done:
343 if (ret)
344 nouveau_abi16_chan_fini(abi16, chan);
345 return nouveau_abi16_put(abi16, ret);
346 }
347
348
349 int
nouveau_abi16_ioctl_channel_free(ABI16_IOCTL_ARGS)350 nouveau_abi16_ioctl_channel_free(ABI16_IOCTL_ARGS)
351 {
352 struct drm_nouveau_channel_free *req = data;
353 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
354 struct nouveau_abi16_chan *chan;
355 int ret = -ENOENT;
356
357 if (unlikely(!abi16))
358 return -ENOMEM;
359
360 list_for_each_entry(chan, &abi16->channels, head) {
361 if (chan->chan->handle == (NVDRM_CHAN | req->channel)) {
362 nouveau_abi16_chan_fini(abi16, chan);
363 return nouveau_abi16_put(abi16, 0);
364 }
365 }
366
367 return nouveau_abi16_put(abi16, ret);
368 }
369
370 int
nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)371 nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)
372 {
373 struct drm_nouveau_grobj_alloc *init = data;
374 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
375 struct nouveau_drm *drm = nouveau_drm(dev);
376 struct nouveau_object *object;
377 int ret;
378
379 if (unlikely(!abi16))
380 return -ENOMEM;
381
382 if (init->handle == ~0)
383 return nouveau_abi16_put(abi16, -EINVAL);
384
385 /* compatibility with userspace that assumes 506e for all chipsets */
386 if (init->class == 0x506e) {
387 init->class = nouveau_abi16_swclass(drm);
388 if (init->class == 0x906e)
389 return nouveau_abi16_put(abi16, 0);
390 }
391
392 ret = nouveau_object_new(abi16->client, NVDRM_CHAN | init->channel,
393 init->handle, init->class, NULL, 0, &object);
394 return nouveau_abi16_put(abi16, ret);
395 }
396
397 int
nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)398 nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
399 {
400 struct drm_nouveau_notifierobj_alloc *info = data;
401 struct nouveau_drm *drm = nouveau_drm(dev);
402 struct nouveau_device *device = nv_device(drm->device);
403 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
404 struct nouveau_abi16_chan *chan = NULL, *temp;
405 struct nouveau_abi16_ntfy *ntfy;
406 struct nouveau_object *object;
407 static const struct nv_dma_class zero_args;
408 struct nv_dma_class args = zero_args;
409 int ret;
410
411 if (unlikely(!abi16))
412 return -ENOMEM;
413
414 /* completely unnecessary for these chipsets... */
415 if (unlikely(nv_device(abi16->device)->card_type >= NV_C0))
416 return nouveau_abi16_put(abi16, -EINVAL);
417
418 list_for_each_entry(temp, &abi16->channels, head) {
419 if (temp->chan->handle == (NVDRM_CHAN | info->channel)) {
420 chan = temp;
421 break;
422 }
423 }
424
425 if (!chan)
426 return nouveau_abi16_put(abi16, -ENOENT);
427
428 ntfy = kzalloc(sizeof(*ntfy), GFP_KERNEL);
429 if (!ntfy)
430 return nouveau_abi16_put(abi16, -ENOMEM);
431
432 list_add(&ntfy->head, &chan->notifiers);
433 ntfy->handle = info->handle;
434
435 ret = nouveau_mm_head(&chan->heap, 1, info->size, info->size, 1,
436 &ntfy->node);
437 if (ret)
438 goto done;
439
440 args.start = ntfy->node->offset;
441 args.limit = ntfy->node->offset + ntfy->node->length - 1;
442 if (device->card_type >= NV_50) {
443 args.flags = NV_DMA_TARGET_VM | NV_DMA_ACCESS_VM;
444 args.start += chan->ntfy_vma.offset;
445 args.limit += chan->ntfy_vma.offset;
446 } else
447 if (drm->agp.stat == ENABLED) {
448 args.flags = NV_DMA_TARGET_AGP | NV_DMA_ACCESS_RDWR;
449 args.start += drm->agp.base + chan->ntfy->bo.offset;
450 args.limit += drm->agp.base + chan->ntfy->bo.offset;
451 } else {
452 args.flags = NV_DMA_TARGET_VM | NV_DMA_ACCESS_RDWR;
453 args.start += chan->ntfy->bo.offset;
454 args.limit += chan->ntfy->bo.offset;
455 }
456
457 ret = nouveau_object_new(abi16->client, chan->chan->handle,
458 ntfy->handle, 0x003d, &args,
459 sizeof(args), &object);
460 if (ret)
461 goto done;
462
463 info->offset = ntfy->node->offset;
464
465 done:
466 if (ret)
467 nouveau_abi16_ntfy_fini(chan, ntfy);
468 return nouveau_abi16_put(abi16, ret);
469 }
470
471 int
nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS)472 nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS)
473 {
474 struct drm_nouveau_gpuobj_free *fini = data;
475 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
476 struct nouveau_abi16_chan *chan = NULL, *temp;
477 struct nouveau_abi16_ntfy *ntfy;
478 int ret;
479
480 if (unlikely(!abi16))
481 return -ENOMEM;
482
483 list_for_each_entry(temp, &abi16->channels, head) {
484 if (temp->chan->handle == (NVDRM_CHAN | fini->channel)) {
485 chan = temp;
486 break;
487 }
488 }
489
490 if (!chan)
491 return nouveau_abi16_put(abi16, -ENOENT);
492
493 /* synchronize with the user channel and destroy the gpu object */
494 nouveau_channel_idle(chan->chan);
495
496 ret = nouveau_object_del(abi16->client, chan->chan->handle, fini->handle);
497 if (ret)
498 return nouveau_abi16_put(abi16, ret);
499
500 /* cleanup extra state if this object was a notifier */
501 list_for_each_entry(ntfy, &chan->notifiers, head) {
502 if (ntfy->handle == fini->handle) {
503 nouveau_mm_free(&chan->heap, &ntfy->node);
504 list_del(&ntfy->head);
505 break;
506 }
507 }
508
509 return nouveau_abi16_put(abi16, 0);
510 }
511