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 * Authors: Ben Skeggs
23 */
24 #define nvkm_udevice(p) container_of((p), struct nvkm_udevice, object)
25 #include "priv.h"
26 #include "ctrl.h"
27
28 #include <core/client.h>
29 #include <subdev/fb.h>
30 #include <subdev/instmem.h>
31 #include <subdev/timer.h>
32
33 #include <nvif/class.h>
34 #include <nvif/cl0080.h>
35 #include <nvif/unpack.h>
36
37 struct nvkm_udevice {
38 struct nvkm_object object;
39 struct nvkm_device *device;
40 };
41
42 static int
nvkm_udevice_info_subdev(struct nvkm_device * device,u64 mthd,u64 * data)43 nvkm_udevice_info_subdev(struct nvkm_device *device, u64 mthd, u64 *data)
44 {
45 struct nvkm_subdev *subdev;
46 enum nvkm_devidx subidx;
47
48 switch (mthd & NV_DEVICE_INFO_UNIT) {
49 case NV_DEVICE_FIFO(0): subidx = NVKM_ENGINE_FIFO; break;
50 default:
51 return -EINVAL;
52 }
53
54 subdev = nvkm_device_subdev(device, subidx);
55 if (subdev)
56 return nvkm_subdev_info(subdev, mthd, data);
57 return -ENODEV;
58 }
59
60 static void
nvkm_udevice_info_v1(struct nvkm_device * device,struct nv_device_info_v1_data * args)61 nvkm_udevice_info_v1(struct nvkm_device *device,
62 struct nv_device_info_v1_data *args)
63 {
64 if (args->mthd & NV_DEVICE_INFO_UNIT) {
65 if (nvkm_udevice_info_subdev(device, args->mthd, &args->data))
66 args->mthd = NV_DEVICE_INFO_INVALID;
67 return;
68 }
69
70 switch (args->mthd) {
71 #define ENGINE__(A,B,C) NV_DEVICE_INFO_ENGINE_##A: { int _i; \
72 for (_i = (B), args->data = 0ULL; _i <= (C); _i++) { \
73 if (nvkm_device_engine(device, _i)) \
74 args->data |= BIT_ULL(_i); \
75 } \
76 }
77 #define ENGINE_A(A) ENGINE__(A, NVKM_ENGINE_##A , NVKM_ENGINE_##A)
78 #define ENGINE_B(A) ENGINE__(A, NVKM_ENGINE_##A##0, NVKM_ENGINE_##A##_LAST)
79 case ENGINE_A(SW ); break;
80 case ENGINE_A(GR ); break;
81 case ENGINE_A(MPEG ); break;
82 case ENGINE_A(ME ); break;
83 case ENGINE_A(CIPHER); break;
84 case ENGINE_A(BSP ); break;
85 case ENGINE_A(VP ); break;
86 case ENGINE_B(CE ); break;
87 case ENGINE_A(SEC ); break;
88 case ENGINE_A(MSVLD ); break;
89 case ENGINE_A(MSPDEC); break;
90 case ENGINE_A(MSPPP ); break;
91 case ENGINE_A(MSENC ); break;
92 case ENGINE_A(VIC ); break;
93 case ENGINE_A(SEC2 ); break;
94 case ENGINE_B(NVDEC ); break;
95 case ENGINE_B(NVENC ); break;
96 default:
97 args->mthd = NV_DEVICE_INFO_INVALID;
98 break;
99 }
100 }
101
102 static int
nvkm_udevice_info(struct nvkm_udevice * udev,void * data,u32 size)103 nvkm_udevice_info(struct nvkm_udevice *udev, void *data, u32 size)
104 {
105 struct nvkm_object *object = &udev->object;
106 struct nvkm_device *device = udev->device;
107 struct nvkm_fb *fb = device->fb;
108 struct nvkm_instmem *imem = device->imem;
109 union {
110 struct nv_device_info_v0 v0;
111 struct nv_device_info_v1 v1;
112 } *args = data;
113 int ret = -ENOSYS, i;
114
115 nvif_ioctl(object, "device info size %d\n", size);
116 if (!(ret = nvif_unpack(ret, &data, &size, args->v1, 1, 1, true))) {
117 nvif_ioctl(object, "device info vers %d count %d\n",
118 args->v1.version, args->v1.count);
119 if (args->v1.count * sizeof(args->v1.data[0]) == size) {
120 for (i = 0; i < args->v1.count; i++)
121 nvkm_udevice_info_v1(device, &args->v1.data[i]);
122 return 0;
123 }
124 return -EINVAL;
125 } else
126 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
127 nvif_ioctl(object, "device info vers %d\n", args->v0.version);
128 } else
129 return ret;
130
131 switch (device->chipset) {
132 case 0x01a:
133 case 0x01f:
134 case 0x04c:
135 case 0x04e:
136 case 0x063:
137 case 0x067:
138 case 0x068:
139 case 0x0aa:
140 case 0x0ac:
141 case 0x0af:
142 args->v0.platform = NV_DEVICE_INFO_V0_IGP;
143 break;
144 default:
145 switch (device->type) {
146 case NVKM_DEVICE_PCI:
147 args->v0.platform = NV_DEVICE_INFO_V0_PCI;
148 break;
149 case NVKM_DEVICE_AGP:
150 args->v0.platform = NV_DEVICE_INFO_V0_AGP;
151 break;
152 case NVKM_DEVICE_PCIE:
153 args->v0.platform = NV_DEVICE_INFO_V0_PCIE;
154 break;
155 case NVKM_DEVICE_TEGRA:
156 args->v0.platform = NV_DEVICE_INFO_V0_SOC;
157 break;
158 default:
159 WARN_ON(1);
160 break;
161 }
162 break;
163 }
164
165 switch (device->card_type) {
166 case NV_04: args->v0.family = NV_DEVICE_INFO_V0_TNT; break;
167 case NV_10:
168 case NV_11: args->v0.family = NV_DEVICE_INFO_V0_CELSIUS; break;
169 case NV_20: args->v0.family = NV_DEVICE_INFO_V0_KELVIN; break;
170 case NV_30: args->v0.family = NV_DEVICE_INFO_V0_RANKINE; break;
171 case NV_40: args->v0.family = NV_DEVICE_INFO_V0_CURIE; break;
172 case NV_50: args->v0.family = NV_DEVICE_INFO_V0_TESLA; break;
173 case NV_C0: args->v0.family = NV_DEVICE_INFO_V0_FERMI; break;
174 case NV_E0: args->v0.family = NV_DEVICE_INFO_V0_KEPLER; break;
175 case GM100: args->v0.family = NV_DEVICE_INFO_V0_MAXWELL; break;
176 case GP100: args->v0.family = NV_DEVICE_INFO_V0_PASCAL; break;
177 case GV100: args->v0.family = NV_DEVICE_INFO_V0_VOLTA; break;
178 case TU100: args->v0.family = NV_DEVICE_INFO_V0_TURING; break;
179 default:
180 args->v0.family = 0;
181 break;
182 }
183
184 args->v0.chipset = device->chipset;
185 args->v0.revision = device->chiprev;
186 if (fb && fb->ram)
187 args->v0.ram_size = args->v0.ram_user = fb->ram->size;
188 else
189 args->v0.ram_size = args->v0.ram_user = 0;
190 if (imem && args->v0.ram_size > 0)
191 args->v0.ram_user = args->v0.ram_user - imem->reserved;
192
193 strncpy(args->v0.chip, device->chip->name, sizeof(args->v0.chip));
194 strncpy(args->v0.name, device->name, sizeof(args->v0.name));
195 return 0;
196 }
197
198 static int
nvkm_udevice_time(struct nvkm_udevice * udev,void * data,u32 size)199 nvkm_udevice_time(struct nvkm_udevice *udev, void *data, u32 size)
200 {
201 struct nvkm_object *object = &udev->object;
202 struct nvkm_device *device = udev->device;
203 union {
204 struct nv_device_time_v0 v0;
205 } *args = data;
206 int ret = -ENOSYS;
207
208 nvif_ioctl(object, "device time size %d\n", size);
209 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
210 nvif_ioctl(object, "device time vers %d\n", args->v0.version);
211 args->v0.time = nvkm_timer_read(device->timer);
212 }
213
214 return ret;
215 }
216
217 static int
nvkm_udevice_mthd(struct nvkm_object * object,u32 mthd,void * data,u32 size)218 nvkm_udevice_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
219 {
220 struct nvkm_udevice *udev = nvkm_udevice(object);
221 nvif_ioctl(object, "device mthd %08x\n", mthd);
222 switch (mthd) {
223 case NV_DEVICE_V0_INFO:
224 return nvkm_udevice_info(udev, data, size);
225 case NV_DEVICE_V0_TIME:
226 return nvkm_udevice_time(udev, data, size);
227 default:
228 break;
229 }
230 return -EINVAL;
231 }
232
233 static int
nvkm_udevice_rd08(struct nvkm_object * object,u64 addr,u8 * data)234 nvkm_udevice_rd08(struct nvkm_object *object, u64 addr, u8 *data)
235 {
236 struct nvkm_udevice *udev = nvkm_udevice(object);
237 *data = nvkm_rd08(udev->device, addr);
238 return 0;
239 }
240
241 static int
nvkm_udevice_rd16(struct nvkm_object * object,u64 addr,u16 * data)242 nvkm_udevice_rd16(struct nvkm_object *object, u64 addr, u16 *data)
243 {
244 struct nvkm_udevice *udev = nvkm_udevice(object);
245 *data = nvkm_rd16(udev->device, addr);
246 return 0;
247 }
248
249 static int
nvkm_udevice_rd32(struct nvkm_object * object,u64 addr,u32 * data)250 nvkm_udevice_rd32(struct nvkm_object *object, u64 addr, u32 *data)
251 {
252 struct nvkm_udevice *udev = nvkm_udevice(object);
253 *data = nvkm_rd32(udev->device, addr);
254 return 0;
255 }
256
257 static int
nvkm_udevice_wr08(struct nvkm_object * object,u64 addr,u8 data)258 nvkm_udevice_wr08(struct nvkm_object *object, u64 addr, u8 data)
259 {
260 struct nvkm_udevice *udev = nvkm_udevice(object);
261 nvkm_wr08(udev->device, addr, data);
262 return 0;
263 }
264
265 static int
nvkm_udevice_wr16(struct nvkm_object * object,u64 addr,u16 data)266 nvkm_udevice_wr16(struct nvkm_object *object, u64 addr, u16 data)
267 {
268 struct nvkm_udevice *udev = nvkm_udevice(object);
269 nvkm_wr16(udev->device, addr, data);
270 return 0;
271 }
272
273 static int
nvkm_udevice_wr32(struct nvkm_object * object,u64 addr,u32 data)274 nvkm_udevice_wr32(struct nvkm_object *object, u64 addr, u32 data)
275 {
276 struct nvkm_udevice *udev = nvkm_udevice(object);
277 nvkm_wr32(udev->device, addr, data);
278 return 0;
279 }
280
281 static int
nvkm_udevice_map(struct nvkm_object * object,void * argv,u32 argc,enum nvkm_object_map * type,u64 * addr,u64 * size)282 nvkm_udevice_map(struct nvkm_object *object, void *argv, u32 argc,
283 enum nvkm_object_map *type, u64 *addr, u64 *size)
284 {
285 struct nvkm_udevice *udev = nvkm_udevice(object);
286 struct nvkm_device *device = udev->device;
287 *type = NVKM_OBJECT_MAP_IO;
288 *addr = device->func->resource_addr(device, 0);
289 *size = device->func->resource_size(device, 0);
290 return 0;
291 }
292
293 static int
nvkm_udevice_fini(struct nvkm_object * object,bool suspend)294 nvkm_udevice_fini(struct nvkm_object *object, bool suspend)
295 {
296 struct nvkm_udevice *udev = nvkm_udevice(object);
297 struct nvkm_device *device = udev->device;
298 int ret = 0;
299
300 mutex_lock(&device->mutex);
301 if (!--device->refcount) {
302 ret = nvkm_device_fini(device, suspend);
303 if (ret && suspend) {
304 device->refcount++;
305 goto done;
306 }
307 }
308
309 done:
310 mutex_unlock(&device->mutex);
311 return ret;
312 }
313
314 static int
nvkm_udevice_init(struct nvkm_object * object)315 nvkm_udevice_init(struct nvkm_object *object)
316 {
317 struct nvkm_udevice *udev = nvkm_udevice(object);
318 struct nvkm_device *device = udev->device;
319 int ret = 0;
320
321 mutex_lock(&device->mutex);
322 if (!device->refcount++) {
323 ret = nvkm_device_init(device);
324 if (ret) {
325 device->refcount--;
326 goto done;
327 }
328 }
329
330 done:
331 mutex_unlock(&device->mutex);
332 return ret;
333 }
334
335 static int
nvkm_udevice_child_new(const struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_object ** pobject)336 nvkm_udevice_child_new(const struct nvkm_oclass *oclass,
337 void *data, u32 size, struct nvkm_object **pobject)
338 {
339 struct nvkm_udevice *udev = nvkm_udevice(oclass->parent);
340 const struct nvkm_device_oclass *sclass = oclass->priv;
341 return sclass->ctor(udev->device, oclass, data, size, pobject);
342 }
343
344 static int
nvkm_udevice_child_get(struct nvkm_object * object,int index,struct nvkm_oclass * oclass)345 nvkm_udevice_child_get(struct nvkm_object *object, int index,
346 struct nvkm_oclass *oclass)
347 {
348 struct nvkm_udevice *udev = nvkm_udevice(object);
349 struct nvkm_device *device = udev->device;
350 struct nvkm_engine *engine;
351 u64 mask = (1ULL << NVKM_ENGINE_DMAOBJ) |
352 (1ULL << NVKM_ENGINE_FIFO) |
353 (1ULL << NVKM_ENGINE_DISP) |
354 (1ULL << NVKM_ENGINE_PM);
355 const struct nvkm_device_oclass *sclass = NULL;
356 int i;
357
358 for (; i = __ffs64(mask), mask && !sclass; mask &= ~(1ULL << i)) {
359 if (!(engine = nvkm_device_engine(device, i)) ||
360 !(engine->func->base.sclass))
361 continue;
362 oclass->engine = engine;
363
364 index -= engine->func->base.sclass(oclass, index, &sclass);
365 }
366
367 if (!sclass) {
368 if (index-- == 0)
369 sclass = &nvkm_control_oclass;
370 else if (device->mmu && index-- == 0)
371 sclass = &device->mmu->user;
372 else if (device->fault && index-- == 0)
373 sclass = &device->fault->user;
374 else
375 return -EINVAL;
376
377 oclass->base = sclass->base;
378 }
379
380 oclass->ctor = nvkm_udevice_child_new;
381 oclass->priv = sclass;
382 return 0;
383 }
384
385 static const struct nvkm_object_func
386 nvkm_udevice_super = {
387 .init = nvkm_udevice_init,
388 .fini = nvkm_udevice_fini,
389 .mthd = nvkm_udevice_mthd,
390 .map = nvkm_udevice_map,
391 .rd08 = nvkm_udevice_rd08,
392 .rd16 = nvkm_udevice_rd16,
393 .rd32 = nvkm_udevice_rd32,
394 .wr08 = nvkm_udevice_wr08,
395 .wr16 = nvkm_udevice_wr16,
396 .wr32 = nvkm_udevice_wr32,
397 .sclass = nvkm_udevice_child_get,
398 };
399
400 static const struct nvkm_object_func
401 nvkm_udevice = {
402 .init = nvkm_udevice_init,
403 .fini = nvkm_udevice_fini,
404 .mthd = nvkm_udevice_mthd,
405 .sclass = nvkm_udevice_child_get,
406 };
407
408 static int
nvkm_udevice_new(const struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_object ** pobject)409 nvkm_udevice_new(const struct nvkm_oclass *oclass, void *data, u32 size,
410 struct nvkm_object **pobject)
411 {
412 union {
413 struct nv_device_v0 v0;
414 } *args = data;
415 struct nvkm_client *client = oclass->client;
416 struct nvkm_object *parent = &client->object;
417 const struct nvkm_object_func *func;
418 struct nvkm_udevice *udev;
419 int ret = -ENOSYS;
420
421 nvif_ioctl(parent, "create device size %d\n", size);
422 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
423 nvif_ioctl(parent, "create device v%d device %016llx\n",
424 args->v0.version, args->v0.device);
425 } else
426 return ret;
427
428 /* give priviledged clients register access */
429 if (client->super)
430 func = &nvkm_udevice_super;
431 else
432 func = &nvkm_udevice;
433
434 if (!(udev = kzalloc(sizeof(*udev), GFP_KERNEL)))
435 return -ENOMEM;
436 nvkm_object_ctor(func, oclass, &udev->object);
437 *pobject = &udev->object;
438
439 /* find the device that matches what the client requested */
440 if (args->v0.device != ~0)
441 udev->device = nvkm_device_find(args->v0.device);
442 else
443 udev->device = nvkm_device_find(client->device);
444 if (!udev->device)
445 return -ENODEV;
446
447 return 0;
448 }
449
450 const struct nvkm_sclass
451 nvkm_udevice_sclass = {
452 .oclass = NV_DEVICE,
453 .minver = 0,
454 .maxver = 0,
455 .ctor = nvkm_udevice_new,
456 };
457
