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