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_subdev_type type;
47
48 switch (mthd & NV_DEVICE_INFO_UNIT) {
49 case NV_DEVICE_HOST(0): type = NVKM_ENGINE_FIFO; break;
50 default:
51 return -EINVAL;
52 }
53
54 subdev = nvkm_device_subdev(device, type, 0);
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 args->mthd = NV_DEVICE_INFO_INVALID;
70 }
71
72 static int
nvkm_udevice_info(struct nvkm_udevice * udev,void * data,u32 size)73 nvkm_udevice_info(struct nvkm_udevice *udev, void *data, u32 size)
74 {
75 struct nvkm_object *object = &udev->object;
76 struct nvkm_device *device = udev->device;
77 struct nvkm_fb *fb = device->fb;
78 struct nvkm_instmem *imem = device->imem;
79 union {
80 struct nv_device_info_v0 v0;
81 struct nv_device_info_v1 v1;
82 } *args = data;
83 int ret = -ENOSYS, i;
84
85 nvif_ioctl(object, "device info size %d\n", size);
86 if (!(ret = nvif_unpack(ret, &data, &size, args->v1, 1, 1, true))) {
87 nvif_ioctl(object, "device info vers %d count %d\n",
88 args->v1.version, args->v1.count);
89 if (args->v1.count * sizeof(args->v1.data[0]) == size) {
90 for (i = 0; i < args->v1.count; i++)
91 nvkm_udevice_info_v1(device, &args->v1.data[i]);
92 return 0;
93 }
94 return -EINVAL;
95 } else
96 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
97 nvif_ioctl(object, "device info vers %d\n", args->v0.version);
98 } else
99 return ret;
100
101 switch (device->chipset) {
102 case 0x01a:
103 case 0x01f:
104 case 0x04c:
105 case 0x04e:
106 case 0x063:
107 case 0x067:
108 case 0x068:
109 case 0x0aa:
110 case 0x0ac:
111 case 0x0af:
112 args->v0.platform = NV_DEVICE_INFO_V0_IGP;
113 break;
114 default:
115 switch (device->type) {
116 case NVKM_DEVICE_PCI:
117 args->v0.platform = NV_DEVICE_INFO_V0_PCI;
118 break;
119 case NVKM_DEVICE_AGP:
120 args->v0.platform = NV_DEVICE_INFO_V0_AGP;
121 break;
122 case NVKM_DEVICE_PCIE:
123 args->v0.platform = NV_DEVICE_INFO_V0_PCIE;
124 break;
125 case NVKM_DEVICE_TEGRA:
126 args->v0.platform = NV_DEVICE_INFO_V0_SOC;
127 break;
128 default:
129 WARN_ON(1);
130 break;
131 }
132 break;
133 }
134
135 switch (device->card_type) {
136 case NV_04: args->v0.family = NV_DEVICE_INFO_V0_TNT; break;
137 case NV_10:
138 case NV_11: args->v0.family = NV_DEVICE_INFO_V0_CELSIUS; break;
139 case NV_20: args->v0.family = NV_DEVICE_INFO_V0_KELVIN; break;
140 case NV_30: args->v0.family = NV_DEVICE_INFO_V0_RANKINE; break;
141 case NV_40: args->v0.family = NV_DEVICE_INFO_V0_CURIE; break;
142 case NV_50: args->v0.family = NV_DEVICE_INFO_V0_TESLA; break;
143 case NV_C0: args->v0.family = NV_DEVICE_INFO_V0_FERMI; break;
144 case NV_E0: args->v0.family = NV_DEVICE_INFO_V0_KEPLER; break;
145 case GM100: args->v0.family = NV_DEVICE_INFO_V0_MAXWELL; break;
146 case GP100: args->v0.family = NV_DEVICE_INFO_V0_PASCAL; break;
147 case GV100: args->v0.family = NV_DEVICE_INFO_V0_VOLTA; break;
148 case TU100: args->v0.family = NV_DEVICE_INFO_V0_TURING; break;
149 case GA100: args->v0.family = NV_DEVICE_INFO_V0_AMPERE; break;
150 default:
151 args->v0.family = 0;
152 break;
153 }
154
155 args->v0.chipset = device->chipset;
156 args->v0.revision = device->chiprev;
157 if (fb && fb->ram)
158 args->v0.ram_size = args->v0.ram_user = fb->ram->size;
159 else
160 args->v0.ram_size = args->v0.ram_user = 0;
161 if (imem && args->v0.ram_size > 0)
162 args->v0.ram_user = args->v0.ram_user - imem->reserved;
163
164 strncpy(args->v0.chip, device->chip->name, sizeof(args->v0.chip));
165 strncpy(args->v0.name, device->name, sizeof(args->v0.name));
166 return 0;
167 }
168
169 static int
nvkm_udevice_time(struct nvkm_udevice * udev,void * data,u32 size)170 nvkm_udevice_time(struct nvkm_udevice *udev, void *data, u32 size)
171 {
172 struct nvkm_object *object = &udev->object;
173 struct nvkm_device *device = udev->device;
174 union {
175 struct nv_device_time_v0 v0;
176 } *args = data;
177 int ret = -ENOSYS;
178
179 nvif_ioctl(object, "device time size %d\n", size);
180 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
181 nvif_ioctl(object, "device time vers %d\n", args->v0.version);
182 args->v0.time = nvkm_timer_read(device->timer);
183 }
184
185 return ret;
186 }
187
188 static int
nvkm_udevice_mthd(struct nvkm_object * object,u32 mthd,void * data,u32 size)189 nvkm_udevice_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
190 {
191 struct nvkm_udevice *udev = nvkm_udevice(object);
192 nvif_ioctl(object, "device mthd %08x\n", mthd);
193 switch (mthd) {
194 case NV_DEVICE_V0_INFO:
195 return nvkm_udevice_info(udev, data, size);
196 case NV_DEVICE_V0_TIME:
197 return nvkm_udevice_time(udev, data, size);
198 default:
199 break;
200 }
201 return -EINVAL;
202 }
203
204 static int
nvkm_udevice_rd08(struct nvkm_object * object,u64 addr,u8 * data)205 nvkm_udevice_rd08(struct nvkm_object *object, u64 addr, u8 *data)
206 {
207 struct nvkm_udevice *udev = nvkm_udevice(object);
208 *data = nvkm_rd08(udev->device, addr);
209 return 0;
210 }
211
212 static int
nvkm_udevice_rd16(struct nvkm_object * object,u64 addr,u16 * data)213 nvkm_udevice_rd16(struct nvkm_object *object, u64 addr, u16 *data)
214 {
215 struct nvkm_udevice *udev = nvkm_udevice(object);
216 *data = nvkm_rd16(udev->device, addr);
217 return 0;
218 }
219
220 static int
nvkm_udevice_rd32(struct nvkm_object * object,u64 addr,u32 * data)221 nvkm_udevice_rd32(struct nvkm_object *object, u64 addr, u32 *data)
222 {
223 struct nvkm_udevice *udev = nvkm_udevice(object);
224 *data = nvkm_rd32(udev->device, addr);
225 return 0;
226 }
227
228 static int
nvkm_udevice_wr08(struct nvkm_object * object,u64 addr,u8 data)229 nvkm_udevice_wr08(struct nvkm_object *object, u64 addr, u8 data)
230 {
231 struct nvkm_udevice *udev = nvkm_udevice(object);
232 nvkm_wr08(udev->device, addr, data);
233 return 0;
234 }
235
236 static int
nvkm_udevice_wr16(struct nvkm_object * object,u64 addr,u16 data)237 nvkm_udevice_wr16(struct nvkm_object *object, u64 addr, u16 data)
238 {
239 struct nvkm_udevice *udev = nvkm_udevice(object);
240 nvkm_wr16(udev->device, addr, data);
241 return 0;
242 }
243
244 static int
nvkm_udevice_wr32(struct nvkm_object * object,u64 addr,u32 data)245 nvkm_udevice_wr32(struct nvkm_object *object, u64 addr, u32 data)
246 {
247 struct nvkm_udevice *udev = nvkm_udevice(object);
248 nvkm_wr32(udev->device, addr, data);
249 return 0;
250 }
251
252 static int
nvkm_udevice_map(struct nvkm_object * object,void * argv,u32 argc,enum nvkm_object_map * type,u64 * addr,u64 * size)253 nvkm_udevice_map(struct nvkm_object *object, void *argv, u32 argc,
254 enum nvkm_object_map *type, u64 *addr, u64 *size)
255 {
256 struct nvkm_udevice *udev = nvkm_udevice(object);
257 struct nvkm_device *device = udev->device;
258 *type = NVKM_OBJECT_MAP_IO;
259 *addr = device->func->resource_addr(device, 0);
260 *size = device->func->resource_size(device, 0);
261 return 0;
262 }
263
264 static int
nvkm_udevice_fini(struct nvkm_object * object,bool suspend)265 nvkm_udevice_fini(struct nvkm_object *object, bool suspend)
266 {
267 struct nvkm_udevice *udev = nvkm_udevice(object);
268 struct nvkm_device *device = udev->device;
269 int ret = 0;
270
271 mutex_lock(&device->mutex);
272 if (!--device->refcount) {
273 ret = nvkm_device_fini(device, suspend);
274 if (ret && suspend) {
275 device->refcount++;
276 goto done;
277 }
278 }
279
280 done:
281 mutex_unlock(&device->mutex);
282 return ret;
283 }
284
285 static int
nvkm_udevice_init(struct nvkm_object * object)286 nvkm_udevice_init(struct nvkm_object *object)
287 {
288 struct nvkm_udevice *udev = nvkm_udevice(object);
289 struct nvkm_device *device = udev->device;
290 int ret = 0;
291
292 mutex_lock(&device->mutex);
293 if (!device->refcount++) {
294 ret = nvkm_device_init(device);
295 if (ret) {
296 device->refcount--;
297 goto done;
298 }
299 }
300
301 done:
302 mutex_unlock(&device->mutex);
303 return ret;
304 }
305
306 static int
nvkm_udevice_child_new(const struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_object ** pobject)307 nvkm_udevice_child_new(const struct nvkm_oclass *oclass,
308 void *data, u32 size, struct nvkm_object **pobject)
309 {
310 struct nvkm_udevice *udev = nvkm_udevice(oclass->parent);
311 const struct nvkm_device_oclass *sclass = oclass->priv;
312 return sclass->ctor(udev->device, oclass, data, size, pobject);
313 }
314
315 static int
nvkm_udevice_child_get(struct nvkm_object * object,int index,struct nvkm_oclass * oclass)316 nvkm_udevice_child_get(struct nvkm_object *object, int index,
317 struct nvkm_oclass *oclass)
318 {
319 struct nvkm_udevice *udev = nvkm_udevice(object);
320 struct nvkm_device *device = udev->device;
321 struct nvkm_engine *engine;
322 u64 mask = (1ULL << NVKM_ENGINE_DMAOBJ) |
323 (1ULL << NVKM_ENGINE_FIFO) |
324 (1ULL << NVKM_ENGINE_DISP) |
325 (1ULL << NVKM_ENGINE_PM);
326 const struct nvkm_device_oclass *sclass = NULL;
327 int i;
328
329 for (; i = __ffs64(mask), mask && !sclass; mask &= ~(1ULL << i)) {
330 if (!(engine = nvkm_device_engine(device, i, 0)) ||
331 !(engine->func->base.sclass))
332 continue;
333 oclass->engine = engine;
334
335 index -= engine->func->base.sclass(oclass, index, &sclass);
336 }
337
338 if (!sclass) {
339 if (index-- == 0)
340 sclass = &nvkm_control_oclass;
341 else if (device->mmu && index-- == 0)
342 sclass = &device->mmu->user;
343 else if (device->fault && index-- == 0)
344 sclass = &device->fault->user;
345 else
346 return -EINVAL;
347
348 oclass->base = sclass->base;
349 }
350
351 oclass->ctor = nvkm_udevice_child_new;
352 oclass->priv = sclass;
353 return 0;
354 }
355
356 static const struct nvkm_object_func
357 nvkm_udevice_super = {
358 .init = nvkm_udevice_init,
359 .fini = nvkm_udevice_fini,
360 .mthd = nvkm_udevice_mthd,
361 .map = nvkm_udevice_map,
362 .rd08 = nvkm_udevice_rd08,
363 .rd16 = nvkm_udevice_rd16,
364 .rd32 = nvkm_udevice_rd32,
365 .wr08 = nvkm_udevice_wr08,
366 .wr16 = nvkm_udevice_wr16,
367 .wr32 = nvkm_udevice_wr32,
368 .sclass = nvkm_udevice_child_get,
369 };
370
371 static const struct nvkm_object_func
372 nvkm_udevice = {
373 .init = nvkm_udevice_init,
374 .fini = nvkm_udevice_fini,
375 .mthd = nvkm_udevice_mthd,
376 .sclass = nvkm_udevice_child_get,
377 };
378
379 static int
nvkm_udevice_new(const struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_object ** pobject)380 nvkm_udevice_new(const struct nvkm_oclass *oclass, void *data, u32 size,
381 struct nvkm_object **pobject)
382 {
383 union {
384 struct nv_device_v0 v0;
385 } *args = data;
386 struct nvkm_client *client = oclass->client;
387 struct nvkm_object *parent = &client->object;
388 const struct nvkm_object_func *func;
389 struct nvkm_udevice *udev;
390 int ret = -ENOSYS;
391
392 nvif_ioctl(parent, "create device size %d\n", size);
393 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
394 nvif_ioctl(parent, "create device v%d device %016llx\n",
395 args->v0.version, args->v0.device);
396 } else
397 return ret;
398
399 /* give priviledged clients register access */
400 if (args->v0.priv)
401 func = &nvkm_udevice_super;
402 else
403 func = &nvkm_udevice;
404
405 if (!(udev = kzalloc(sizeof(*udev), GFP_KERNEL)))
406 return -ENOMEM;
407 nvkm_object_ctor(func, oclass, &udev->object);
408 *pobject = &udev->object;
409
410 /* find the device that matches what the client requested */
411 if (args->v0.device != ~0)
412 udev->device = nvkm_device_find(args->v0.device);
413 else
414 udev->device = nvkm_device_find(client->device);
415 if (!udev->device)
416 return -ENODEV;
417
418 return 0;
419 }
420
421 const struct nvkm_sclass
422 nvkm_udevice_sclass = {
423 .oclass = NV_DEVICE,
424 .minver = 0,
425 .maxver = 0,
426 .ctor = nvkm_udevice_new,
427 };
428