summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/nouveau/nvkm/engine/device/user.c
blob: 03c6d9aef075cca0b13770d25d941602bb7ef49f (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
/*
 * 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.
 *
 * Authors: Ben Skeggs
 */
#define nvkm_udevice(p) container_of((p), struct nvkm_udevice, object)
#include "priv.h"
#include "ctrl.h"

#include <core/client.h>
#include <subdev/fb.h>
#include <subdev/instmem.h>
#include <subdev/timer.h>

#include <nvif/class.h>
#include <nvif/cl0080.h>
#include <nvif/unpack.h>

struct nvkm_udevice {
	struct nvkm_object object;
	struct nvkm_device *device;
};

static int
nvkm_udevice_info_subdev(struct nvkm_device *device, u64 mthd, u64 *data)
{
	struct nvkm_subdev *subdev;
	enum nvkm_devidx subidx;

	switch (mthd & NV_DEVICE_INFO_UNIT) {
	case NV_DEVICE_FIFO(0): subidx = NVKM_ENGINE_FIFO; break;
	default:
		return -EINVAL;
	}

	subdev = nvkm_device_subdev(device, subidx);
	if (subdev)
		return nvkm_subdev_info(subdev, mthd, data);
	return -ENODEV;
}

static void
nvkm_udevice_info_v1(struct nvkm_device *device,
		     struct nv_device_info_v1_data *args)
{
	if (args->mthd & NV_DEVICE_INFO_UNIT) {
		if (nvkm_udevice_info_subdev(device, args->mthd, &args->data))
			args->mthd = NV_DEVICE_INFO_INVALID;
		return;
	}

	switch (args->mthd) {
#define ENGINE__(A,B,C) NV_DEVICE_INFO_ENGINE_##A: { int _i;                   \
	for (_i = (B), args->data = 0ULL; _i <= (C); _i++) {                   \
		if (nvkm_device_engine(device, _i))                            \
			args->data |= BIT_ULL(_i);                             \
	}                                                                      \
}
#define ENGINE_A(A) ENGINE__(A, NVKM_ENGINE_##A   , NVKM_ENGINE_##A)
#define ENGINE_B(A) ENGINE__(A, NVKM_ENGINE_##A##0, NVKM_ENGINE_##A##_LAST)
	case ENGINE_A(SW    ); break;
	case ENGINE_A(GR    ); break;
	case ENGINE_A(MPEG  ); break;
	case ENGINE_A(ME    ); break;
	case ENGINE_A(CIPHER); break;
	case ENGINE_A(BSP   ); break;
	case ENGINE_A(VP    ); break;
	case ENGINE_B(CE    ); break;
	case ENGINE_A(SEC   ); break;
	case ENGINE_A(MSVLD ); break;
	case ENGINE_A(MSPDEC); break;
	case ENGINE_A(MSPPP ); break;
	case ENGINE_A(MSENC ); break;
	case ENGINE_A(VIC   ); break;
	case ENGINE_A(SEC2  ); break;
	case ENGINE_B(NVDEC ); break;
	case ENGINE_B(NVENC ); break;
	default:
		args->mthd = NV_DEVICE_INFO_INVALID;
		break;
	}
}

static int
nvkm_udevice_info(struct nvkm_udevice *udev, void *data, u32 size)
{
	struct nvkm_object *object = &udev->object;
	struct nvkm_device *device = udev->device;
	struct nvkm_fb *fb = device->fb;
	struct nvkm_instmem *imem = device->imem;
	union {
		struct nv_device_info_v0 v0;
		struct nv_device_info_v1 v1;
	} *args = data;
	int ret = -ENOSYS, i;

	nvif_ioctl(object, "device info size %d\n", size);
	if (!(ret = nvif_unpack(ret, &data, &size, args->v1, 1, 1, true))) {
		nvif_ioctl(object, "device info vers %d count %d\n",
			   args->v1.version, args->v1.count);
		if (args->v1.count * sizeof(args->v1.data[0]) == size) {
			for (i = 0; i < args->v1.count; i++)
				nvkm_udevice_info_v1(device, &args->v1.data[i]);
			return 0;
		}
		return -EINVAL;
	} else
	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
		nvif_ioctl(object, "device info vers %d\n", args->v0.version);
	} else
		return ret;

	switch (device->chipset) {
	case 0x01a:
	case 0x01f:
	case 0x04c:
	case 0x04e:
	case 0x063:
	case 0x067:
	case 0x068:
	case 0x0aa:
	case 0x0ac:
	case 0x0af:
		args->v0.platform = NV_DEVICE_INFO_V0_IGP;
		break;
	default:
		switch (device->type) {
		case NVKM_DEVICE_PCI:
			args->v0.platform = NV_DEVICE_INFO_V0_PCI;
			break;
		case NVKM_DEVICE_AGP:
			args->v0.platform = NV_DEVICE_INFO_V0_AGP;
			break;
		case NVKM_DEVICE_PCIE:
			args->v0.platform = NV_DEVICE_INFO_V0_PCIE;
			break;
		case NVKM_DEVICE_TEGRA:
			args->v0.platform = NV_DEVICE_INFO_V0_SOC;
			break;
		default:
			WARN_ON(1);
			break;
		}
		break;
	}

	switch (device->card_type) {
	case NV_04: args->v0.family = NV_DEVICE_INFO_V0_TNT; break;
	case NV_10:
	case NV_11: args->v0.family = NV_DEVICE_INFO_V0_CELSIUS; break;
	case NV_20: args->v0.family = NV_DEVICE_INFO_V0_KELVIN; break;
	case NV_30: args->v0.family = NV_DEVICE_INFO_V0_RANKINE; break;
	case NV_40: args->v0.family = NV_DEVICE_INFO_V0_CURIE; break;
	case NV_50: args->v0.family = NV_DEVICE_INFO_V0_TESLA; break;
	case NV_C0: args->v0.family = NV_DEVICE_INFO_V0_FERMI; break;
	case NV_E0: args->v0.family = NV_DEVICE_INFO_V0_KEPLER; break;
	case GM100: args->v0.family = NV_DEVICE_INFO_V0_MAXWELL; break;
	case GP100: args->v0.family = NV_DEVICE_INFO_V0_PASCAL; break;
	case GV100: args->v0.family = NV_DEVICE_INFO_V0_VOLTA; break;
	case TU100: args->v0.family = NV_DEVICE_INFO_V0_TURING; break;
	default:
		args->v0.family = 0;
		break;
	}

	args->v0.chipset  = device->chipset;
	args->v0.revision = device->chiprev;
	if (fb && fb->ram)
		args->v0.ram_size = args->v0.ram_user = fb->ram->size;
	else
		args->v0.ram_size = args->v0.ram_user = 0;
	if (imem && args->v0.ram_size > 0)
		args->v0.ram_user = args->v0.ram_user - imem->reserved;

	strncpy(args->v0.chip, device->chip->name, sizeof(args->v0.chip));
	strncpy(args->v0.name, device->name, sizeof(args->v0.name));
	return 0;
}

static int
nvkm_udevice_time(struct nvkm_udevice *udev, void *data, u32 size)
{
	struct nvkm_object *object = &udev->object;
	struct nvkm_device *device = udev->device;
	union {
		struct nv_device_time_v0 v0;
	} *args = data;
	int ret = -ENOSYS;

	nvif_ioctl(object, "device time size %d\n", size);
	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
		nvif_ioctl(object, "device time vers %d\n", args->v0.version);
		args->v0.time = nvkm_timer_read(device->timer);
	}

	return ret;
}

static int
nvkm_udevice_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
{
	struct nvkm_udevice *udev = nvkm_udevice(object);
	nvif_ioctl(object, "device mthd %08x\n", mthd);
	switch (mthd) {
	case NV_DEVICE_V0_INFO:
		return nvkm_udevice_info(udev, data, size);
	case NV_DEVICE_V0_TIME:
		return nvkm_udevice_time(udev, data, size);
	default:
		break;
	}
	return -EINVAL;
}

static int
nvkm_udevice_rd08(struct nvkm_object *object, u64 addr, u8 *data)
{
	struct nvkm_udevice *udev = nvkm_udevice(object);
	*data = nvkm_rd08(udev->device, addr);
	return 0;
}

static int
nvkm_udevice_rd16(struct nvkm_object *object, u64 addr, u16 *data)
{
	struct nvkm_udevice *udev = nvkm_udevice(object);
	*data = nvkm_rd16(udev->device, addr);
	return 0;
}

static int
nvkm_udevice_rd32(struct nvkm_object *object, u64 addr, u32 *data)
{
	struct nvkm_udevice *udev = nvkm_udevice(object);
	*data = nvkm_rd32(udev->device, addr);
	return 0;
}

static int
nvkm_udevice_wr08(struct nvkm_object *object, u64 addr, u8 data)
{
	struct nvkm_udevice *udev = nvkm_udevice(object);
	nvkm_wr08(udev->device, addr, data);
	return 0;
}

static int
nvkm_udevice_wr16(struct nvkm_object *object, u64 addr, u16 data)
{
	struct nvkm_udevice *udev = nvkm_udevice(object);
	nvkm_wr16(udev->device, addr, data);
	return 0;
}

static int
nvkm_udevice_wr32(struct nvkm_object *object, u64 addr, u32 data)
{
	struct nvkm_udevice *udev = nvkm_udevice(object);
	nvkm_wr32(udev->device, addr, data);
	return 0;
}

static int
nvkm_udevice_map(struct nvkm_object *object, void *argv, u32 argc,
		 enum nvkm_object_map *type, u64 *addr, u64 *size)
{
	struct nvkm_udevice *udev = nvkm_udevice(object);
	struct nvkm_device *device = udev->device;
	*type = NVKM_OBJECT_MAP_IO;
	*addr = device->func->resource_addr(device, 0);
	*size = device->func->resource_size(device, 0);
	return 0;
}

static int
nvkm_udevice_fini(struct nvkm_object *object, bool suspend)
{
	struct nvkm_udevice *udev = nvkm_udevice(object);
	struct nvkm_device *device = udev->device;
	int ret = 0;

	mutex_lock(&device->mutex);
	if (!--device->refcount) {
		ret = nvkm_device_fini(device, suspend);
		if (ret && suspend) {
			device->refcount++;
			goto done;
		}
	}

done:
	mutex_unlock(&device->mutex);
	return ret;
}

static int
nvkm_udevice_init(struct nvkm_object *object)
{
	struct nvkm_udevice *udev = nvkm_udevice(object);
	struct nvkm_device *device = udev->device;
	int ret = 0;

	mutex_lock(&device->mutex);
	if (!device->refcount++) {
		ret = nvkm_device_init(device);
		if (ret) {
			device->refcount--;
			goto done;
		}
	}

done:
	mutex_unlock(&device->mutex);
	return ret;
}

static int
nvkm_udevice_child_new(const struct nvkm_oclass *oclass,
		       void *data, u32 size, struct nvkm_object **pobject)
{
	struct nvkm_udevice *udev = nvkm_udevice(oclass->parent);
	const struct nvkm_device_oclass *sclass = oclass->priv;
	return sclass->ctor(udev->device, oclass, data, size, pobject);
}

static int
nvkm_udevice_child_get(struct nvkm_object *object, int index,
		       struct nvkm_oclass *oclass)
{
	struct nvkm_udevice *udev = nvkm_udevice(object);
	struct nvkm_device *device = udev->device;
	struct nvkm_engine *engine;
	u64 mask = (1ULL << NVKM_ENGINE_DMAOBJ) |
		   (1ULL << NVKM_ENGINE_FIFO) |
		   (1ULL << NVKM_ENGINE_DISP) |
		   (1ULL << NVKM_ENGINE_PM);
	const struct nvkm_device_oclass *sclass = NULL;
	int i;

	for (; i = __ffs64(mask), mask && !sclass; mask &= ~(1ULL << i)) {
		if (!(engine = nvkm_device_engine(device, i)) ||
		    !(engine->func->base.sclass))
			continue;
		oclass->engine = engine;

		index -= engine->func->base.sclass(oclass, index, &sclass);
	}

	if (!sclass) {
		if (index-- == 0)
			sclass = &nvkm_control_oclass;
		else if (device->mmu && index-- == 0)
			sclass = &device->mmu->user;
		else if (device->fault && index-- == 0)
			sclass = &device->fault->user;
		else
			return -EINVAL;

		oclass->base = sclass->base;
	}

	oclass->ctor = nvkm_udevice_child_new;
	oclass->priv = sclass;
	return 0;
}

static const struct nvkm_object_func
nvkm_udevice_super = {
	.init = nvkm_udevice_init,
	.fini = nvkm_udevice_fini,
	.mthd = nvkm_udevice_mthd,
	.map = nvkm_udevice_map,
	.rd08 = nvkm_udevice_rd08,
	.rd16 = nvkm_udevice_rd16,
	.rd32 = nvkm_udevice_rd32,
	.wr08 = nvkm_udevice_wr08,
	.wr16 = nvkm_udevice_wr16,
	.wr32 = nvkm_udevice_wr32,
	.sclass = nvkm_udevice_child_get,
};

static const struct nvkm_object_func
nvkm_udevice = {
	.init = nvkm_udevice_init,
	.fini = nvkm_udevice_fini,
	.mthd = nvkm_udevice_mthd,
	.sclass = nvkm_udevice_child_get,
};

static int
nvkm_udevice_new(const struct nvkm_oclass *oclass, void *data, u32 size,
		 struct nvkm_object **pobject)
{
	union {
		struct nv_device_v0 v0;
	} *args = data;
	struct nvkm_client *client = oclass->client;
	struct nvkm_object *parent = &client->object;
	const struct nvkm_object_func *func;
	struct nvkm_udevice *udev;
	int ret = -ENOSYS;

	nvif_ioctl(parent, "create device size %d\n", size);
	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
		nvif_ioctl(parent, "create device v%d device %016llx\n",
			   args->v0.version, args->v0.device);
	} else
		return ret;

	/* give priviledged clients register access */
	if (client->super)
		func = &nvkm_udevice_super;
	else
		func = &nvkm_udevice;

	if (!(udev = kzalloc(sizeof(*udev), GFP_KERNEL)))
		return -ENOMEM;
	nvkm_object_ctor(func, oclass, &udev->object);
	*pobject = &udev->object;

	/* find the device that matches what the client requested */
	if (args->v0.device != ~0)
		udev->device = nvkm_device_find(args->v0.device);
	else
		udev->device = nvkm_device_find(client->device);
	if (!udev->device)
		return -ENODEV;

	return 0;
}

const struct nvkm_sclass
nvkm_udevice_sclass = {
	.oclass = NV_DEVICE,
	.minver = 0,
	.maxver = 0,
	.ctor = nvkm_udevice_new,
};