aboutsummaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/nouveau/nouveau_abi16.c
blob: 1c4c6c9161ac6a675a1ffb3b9af9469669aa5d31 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
/*
 * Copyright 2012 Red Hat Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 */

#include <core/object.h>
#include <core/client.h>
#include <core/device.h>
#include <core/class.h>
#include <core/mm.h>

#include <subdev/fb.h>
#include <subdev/timer.h>
#include <subdev/instmem.h>
#include <engine/graph.h>

#include "nouveau_drm.h"
#include "nouveau_dma.h"
#include "nouveau_gem.h"
#include "nouveau_chan.h"
#include "nouveau_abi16.h"

struct nouveau_abi16 *
nouveau_abi16_get(struct drm_file *file_priv, struct drm_device *dev)
{
	struct nouveau_cli *cli = nouveau_cli(file_priv);
	mutex_lock(&cli->mutex);
	if (!cli->abi16) {
		struct nouveau_abi16 *abi16;
		cli->abi16 = abi16 = kzalloc(sizeof(*abi16), GFP_KERNEL);
		if (cli->abi16) {
			INIT_LIST_HEAD(&abi16->channels);
			abi16->client = nv_object(cli);

			/* allocate device object targeting client's default
			 * device (ie. the one that belongs to the fd it
			 * opened)
			 */
			if (nouveau_object_new(abi16->client, NVDRM_CLIENT,
					       NVDRM_DEVICE, 0x0080,
					       &(struct nv_device_class) {
						.device = ~0ULL,
					       },
					       sizeof(struct nv_device_class),
					       &abi16->device) == 0)
				return cli->abi16;

			kfree(cli->abi16);
			cli->abi16 = NULL;
		}

		mutex_unlock(&cli->mutex);
	}
	return cli->abi16;
}

int
nouveau_abi16_put(struct nouveau_abi16 *abi16, int ret)
{
	struct nouveau_cli *cli = (void *)abi16->client;
	mutex_unlock(&cli->mutex);
	return ret;
}

u16
nouveau_abi16_swclass(struct nouveau_drm *drm)
{
	switch (nv_device(drm->device)->card_type) {
	case NV_04:
		return 0x006e;
	case NV_10:
	case NV_20:
	case NV_30:
	case NV_40:
		return 0x016e;
	case NV_50:
		return 0x506e;
	case NV_C0:
	case NV_D0:
	case NV_E0:
		return 0x906e;
	}

	return 0x0000;
}

static void
nouveau_abi16_ntfy_fini(struct nouveau_abi16_chan *chan,
			struct nouveau_abi16_ntfy *ntfy)
{
	nouveau_mm_free(&chan->heap, &ntfy->node);
	list_del(&ntfy->head);
	kfree(ntfy);
}

static void
nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16,
			struct nouveau_abi16_chan *chan)
{
	struct nouveau_abi16_ntfy *ntfy, *temp;

	/* wait for all activity to stop before releasing notify object, which
	 * may be still in use */
	if (chan->chan && chan->ntfy)
		nouveau_channel_idle(chan->chan);

	/* cleanup notifier state */
	list_for_each_entry_safe(ntfy, temp, &chan->notifiers, head) {
		nouveau_abi16_ntfy_fini(chan, ntfy);
	}

	if (chan->ntfy) {
		nouveau_bo_vma_del(chan->ntfy, &chan->ntfy_vma);
		drm_gem_object_unreference_unlocked(chan->ntfy->gem);
	}

	if (chan->heap.block_size)
		nouveau_mm_fini(&chan->heap);

	/* destroy channel object, all children will be killed too */
	if (chan->chan) {
		abi16->handles &= ~(1 << (chan->chan->handle & 0xffff));
		nouveau_channel_del(&chan->chan);
	}

	list_del(&chan->head);
	kfree(chan);
}

void
nouveau_abi16_fini(struct nouveau_abi16 *abi16)
{
	struct nouveau_cli *cli = (void *)abi16->client;
	struct nouveau_abi16_chan *chan, *temp;

	/* cleanup channels */
	list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
		nouveau_abi16_chan_fini(abi16, chan);
	}

	/* destroy the device object */
	nouveau_object_del(abi16->client, NVDRM_CLIENT, NVDRM_DEVICE);

	kfree(cli->abi16);
	cli->abi16 = NULL;
}

int
nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
{
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_device *device = nv_device(drm->device);
	struct nouveau_timer *ptimer = nouveau_timer(device);
	struct nouveau_graph *graph = (void *)nouveau_engine(device, NVDEV_ENGINE_GR);
	struct drm_nouveau_getparam *getparam = data;

	switch (getparam->param) {
	case NOUVEAU_GETPARAM_CHIPSET_ID:
		getparam->value = device->chipset;
		break;
	case NOUVEAU_GETPARAM_PCI_VENDOR:
		getparam->value = dev->pci_vendor;
		break;
	case NOUVEAU_GETPARAM_PCI_DEVICE:
		getparam->value = dev->pci_device;
		break;
	case NOUVEAU_GETPARAM_BUS_TYPE:
		if (drm_pci_device_is_agp(dev))
			getparam->value = 0;
		else
		if (!pci_is_pcie(dev->pdev))
			getparam->value = 1;
		else
			getparam->value = 2;
		break;
	case NOUVEAU_GETPARAM_FB_SIZE:
		getparam->value = drm->gem.vram_available;
		break;
	case NOUVEAU_GETPARAM_AGP_SIZE:
		getparam->value = drm->gem.gart_available;
		break;
	case NOUVEAU_GETPARAM_VM_VRAM_BASE:
		getparam->value = 0; /* deprecated */
		break;
	case NOUVEAU_GETPARAM_PTIMER_TIME:
		getparam->value = ptimer->read(ptimer);
		break;
	case NOUVEAU_GETPARAM_HAS_BO_USAGE:
		getparam->value = 1;
		break;
	case NOUVEAU_GETPARAM_HAS_PAGEFLIP:
		getparam->value = 1;
		break;
	case NOUVEAU_GETPARAM_GRAPH_UNITS:
		getparam->value = graph->units ? graph->units(graph) : 0;
		break;
	default:
		nv_debug(device, "unknown parameter %lld\n", getparam->param);
		return -EINVAL;
	}

	return 0;
}

int
nouveau_abi16_ioctl_setparam(ABI16_IOCTL_ARGS)
{
	return -EINVAL;
}

int
nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
{
	struct drm_nouveau_channel_alloc *init = data;
	struct nouveau_cli *cli = nouveau_cli(file_priv);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
	struct nouveau_abi16_chan *chan;
	struct nouveau_client *client;
	struct nouveau_device *device;
	struct nouveau_instmem *imem;
	struct nouveau_fb *pfb;
	int ret;

	if (unlikely(!abi16))
		return -ENOMEM;

	if (!drm->channel)
		return nouveau_abi16_put(abi16, -ENODEV);

	client = nv_client(abi16->client);
	device = nv_device(abi16->device);
	imem   = nouveau_instmem(device);
	pfb    = nouveau_fb(device);

	/* hack to allow channel engine type specification on kepler */
	if (device->card_type >= NV_E0) {
		if (init->fb_ctxdma_handle != ~0)
			init->fb_ctxdma_handle = NVE0_CHANNEL_IND_ENGINE_GR;
		else
			init->fb_ctxdma_handle = init->tt_ctxdma_handle;

		/* allow flips to be executed if this is a graphics channel */
		init->tt_ctxdma_handle = 0;
		if (init->fb_ctxdma_handle == NVE0_CHANNEL_IND_ENGINE_GR)
			init->tt_ctxdma_handle = 1;
	}

	if (init->fb_ctxdma_handle == ~0 || init->tt_ctxdma_handle == ~0)
		return nouveau_abi16_put(abi16, -EINVAL);

	/* allocate "abi16 channel" data and make up a handle for it */
	init->channel = ffsll(~abi16->handles);
	if (!init->channel--)
		return nouveau_abi16_put(abi16, -ENOSPC);

	chan = kzalloc(sizeof(*chan), GFP_KERNEL);
	if (!chan)
		return nouveau_abi16_put(abi16, -ENOMEM);

	INIT_LIST_HEAD(&chan->notifiers);
	list_add(&chan->head, &abi16->channels);
	abi16->handles |= (1 << init->channel);

	/* create channel object and initialise dma and fence management */
	ret = nouveau_channel_new(drm, cli, NVDRM_DEVICE, NVDRM_CHAN |
				  init->channel, init->fb_ctxdma_handle,
				  init->tt_ctxdma_handle, &chan->chan);
	if (ret)
		goto done;

	if (device->card_type >= NV_50)
		init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM |
					NOUVEAU_GEM_DOMAIN_GART;
	else
	if (chan->chan->push.buffer->bo.mem.mem_type == TTM_PL_VRAM)
		init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM;
	else
		init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_GART;

	if (device->card_type < NV_C0) {
		init->subchan[0].handle = 0x00000000;
		init->subchan[0].grclass = 0x0000;
		init->subchan[1].handle = NvSw;
		init->subchan[1].grclass = 0x506e;
		init->nr_subchan = 2;
	}

	/* Named memory object area */
	ret = nouveau_gem_new(dev, PAGE_SIZE, 0, NOUVEAU_GEM_DOMAIN_GART,
			      0, 0, &chan->ntfy);
	if (ret == 0)
		ret = nouveau_bo_pin(chan->ntfy, TTM_PL_FLAG_TT);
	if (ret)
		goto done;

	if (device->card_type >= NV_50) {
		ret = nouveau_bo_vma_add(chan->ntfy, client->vm,
					&chan->ntfy_vma);
		if (ret)
			goto done;
	}

	ret = drm_gem_handle_create(file_priv, chan->ntfy->gem,
				    &init->notifier_handle);
	if (ret)
		goto done;

	ret = nouveau_mm_init(&chan->heap, 0, PAGE_SIZE, 1);
done:
	if (ret)
		nouveau_abi16_chan_fini(abi16, chan);
	return nouveau_abi16_put(abi16, ret);
}


int
nouveau_abi16_ioctl_channel_free(ABI16_IOCTL_ARGS)
{
	struct drm_nouveau_channel_free *req = data;
	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
	struct nouveau_abi16_chan *chan;
	int ret = -ENOENT;

	if (unlikely(!abi16))
		return -ENOMEM;

	list_for_each_entry(chan, &abi16->channels, head) {
		if (chan->chan->handle == (NVDRM_CHAN | req->channel)) {
			nouveau_abi16_chan_fini(abi16, chan);
			return nouveau_abi16_put(abi16, 0);
		}
	}

	return nouveau_abi16_put(abi16, ret);
}

int
nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)
{
	struct drm_nouveau_grobj_alloc *init = data;
	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_object *object;
	int ret;

	if (unlikely(!abi16))
		return -ENOMEM;

	if (init->handle == ~0)
		return nouveau_abi16_put(abi16, -EINVAL);

	/* compatibility with userspace that assumes 506e for all chipsets */
	if (init->class == 0x506e) {
		init->class = nouveau_abi16_swclass(drm);
		if (init->class == 0x906e)
			return nouveau_abi16_put(abi16, 0);
	}

	ret = nouveau_object_new(abi16->client, NVDRM_CHAN | init->channel,
				  init->handle, init->class, NULL, 0, &object);
	return nouveau_abi16_put(abi16, ret);
}

int
nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
{
	struct drm_nouveau_notifierobj_alloc *info = data;
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_device *device = nv_device(drm->device);
	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
	struct nouveau_abi16_chan *chan = NULL, *temp;
	struct nouveau_abi16_ntfy *ntfy;
	struct nouveau_object *object;
	struct nv_dma_class args = {};
	int ret;

	if (unlikely(!abi16))
		return -ENOMEM;

	/* completely unnecessary for these chipsets... */
	if (unlikely(nv_device(abi16->device)->card_type >= NV_C0))
		return nouveau_abi16_put(abi16, -EINVAL);

	list_for_each_entry(temp, &abi16->channels, head) {
		if (temp->chan->handle == (NVDRM_CHAN | info->channel)) {
			chan = temp;
			break;
		}
	}

	if (!chan)
		return nouveau_abi16_put(abi16, -ENOENT);

	ntfy = kzalloc(sizeof(*ntfy), GFP_KERNEL);
	if (!ntfy)
		return nouveau_abi16_put(abi16, -ENOMEM);

	list_add(&ntfy->head, &chan->notifiers);
	ntfy->handle = info->handle;

	ret = nouveau_mm_head(&chan->heap, 1, info->size, info->size, 1,
			      &ntfy->node);
	if (ret)
		goto done;

	args.start = ntfy->node->offset;
	args.limit = ntfy->node->offset + ntfy->node->length - 1;
	if (device->card_type >= NV_50) {
		args.flags  = NV_DMA_TARGET_VM | NV_DMA_ACCESS_VM;
		args.start += chan->ntfy_vma.offset;
		args.limit += chan->ntfy_vma.offset;
	} else
	if (drm->agp.stat == ENABLED) {
		args.flags  = NV_DMA_TARGET_AGP | NV_DMA_ACCESS_RDWR;
		args.start += drm->agp.base + chan->ntfy->bo.offset;
		args.limit += drm->agp.base + chan->ntfy->bo.offset;
	} else {
		args.flags  = NV_DMA_TARGET_VM | NV_DMA_ACCESS_RDWR;
		args.start += chan->ntfy->bo.offset;
		args.limit += chan->ntfy->bo.offset;
	}

	ret = nouveau_object_new(abi16->client, chan->chan->handle,
				 ntfy->handle, 0x003d, &args,
				 sizeof(args), &object);
	if (ret)
		goto done;

done:
	if (ret)
		nouveau_abi16_ntfy_fini(chan, ntfy);
	return nouveau_abi16_put(abi16, ret);
}

int
nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS)
{
	struct drm_nouveau_gpuobj_free *fini = data;
	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
	struct nouveau_abi16_chan *chan = NULL, *temp;
	struct nouveau_abi16_ntfy *ntfy;
	int ret;

	if (unlikely(!abi16))
		return -ENOMEM;

	list_for_each_entry(temp, &abi16->channels, head) {
		if (temp->chan->handle == (NVDRM_CHAN | fini->channel)) {
			chan = temp;
			break;
		}
	}

	if (!chan)
		return nouveau_abi16_put(abi16, -ENOENT);

	/* synchronize with the user channel and destroy the gpu object */
	nouveau_channel_idle(chan->chan);

	ret = nouveau_object_del(abi16->client, chan->chan->handle, fini->handle);
	if (ret)
		return nouveau_abi16_put(abi16, ret);

	/* cleanup extra state if this object was a notifier */
	list_for_each_entry(ntfy, &chan->notifiers, head) {
		if (ntfy->handle == fini->handle) {
			nouveau_mm_free(&chan->heap, &ntfy->node);
			list_del(&ntfy->head);
			break;
		}
	}

	return nouveau_abi16_put(abi16, 0);
}