1 /* $NetBSD: nouveau_nvkm_engine_device_user.c,v 1.8 2021/12/19 10:51:57 riastradh Exp $ */
2
3 /*
4 * Copyright 2012 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Ben Skeggs
25 */
26 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_engine_device_user.c,v 1.8 2021/12/19 10:51:57 riastradh Exp $");
28
29 #define nvkm_udevice(p) container_of((p), struct nvkm_udevice, object)
30 #include "priv.h"
31 #include "ctrl.h"
32
33 #include <core/client.h>
34 #include <subdev/fb.h>
35 #include <subdev/instmem.h>
36 #include <subdev/timer.h>
37
38 #include <nvif/class.h>
39 #include <nvif/cl0080.h>
40 #include <nvif/unpack.h>
41
42 struct nvkm_udevice {
43 struct nvkm_object object;
44 struct nvkm_device *device;
45 };
46
47 static int
nvkm_udevice_info_subdev(struct nvkm_device * device,u64 mthd,u64 * data)48 nvkm_udevice_info_subdev(struct nvkm_device *device, u64 mthd, u64 *data)
49 {
50 struct nvkm_subdev *subdev;
51 enum nvkm_devidx subidx;
52
53 switch (mthd & NV_DEVICE_INFO_UNIT) {
54 case NV_DEVICE_FIFO(0): subidx = NVKM_ENGINE_FIFO; break;
55 default:
56 return -EINVAL;
57 }
58
59 subdev = nvkm_device_subdev(device, subidx);
60 if (subdev)
61 return nvkm_subdev_info(subdev, mthd, data);
62 return -ENODEV;
63 }
64
65 static void
nvkm_udevice_info_v1(struct nvkm_device * device,struct nv_device_info_v1_data * args)66 nvkm_udevice_info_v1(struct nvkm_device *device,
67 struct nv_device_info_v1_data *args)
68 {
69 if (args->mthd & NV_DEVICE_INFO_UNIT) {
70 if (nvkm_udevice_info_subdev(device, args->mthd, &args->data))
71 args->mthd = NV_DEVICE_INFO_INVALID;
72 return;
73 }
74
75 switch (args->mthd) {
76 #define ENGINE__(A,B,C) NV_DEVICE_INFO_ENGINE_##A: { int _i; \
77 for (_i = (B), args->data = 0ULL; _i <= (C); _i++) { \
78 if (nvkm_device_engine(device, _i)) \
79 args->data |= BIT_ULL(_i); \
80 } \
81 }
82 #define ENGINE_A(A) ENGINE__(A, NVKM_ENGINE_##A , NVKM_ENGINE_##A)
83 #define ENGINE_B(A) ENGINE__(A, NVKM_ENGINE_##A##0, NVKM_ENGINE_##A##_LAST)
84 case ENGINE_A(SW ); break;
85 case ENGINE_A(GR ); break;
86 case ENGINE_A(MPEG ); break;
87 case ENGINE_A(ME ); break;
88 case ENGINE_A(CIPHER); break;
89 case ENGINE_A(BSP ); break;
90 case ENGINE_A(VP ); break;
91 case ENGINE_B(CE ); break;
92 case ENGINE_A(SEC ); break;
93 case ENGINE_A(MSVLD ); break;
94 case ENGINE_A(MSPDEC); break;
95 case ENGINE_A(MSPPP ); break;
96 case ENGINE_A(MSENC ); break;
97 case ENGINE_A(VIC ); break;
98 case ENGINE_A(SEC2 ); break;
99 case ENGINE_B(NVDEC ); break;
100 case ENGINE_B(NVENC ); break;
101 default:
102 args->mthd = NV_DEVICE_INFO_INVALID;
103 break;
104 }
105 }
106
107 static int
nvkm_udevice_info(struct nvkm_udevice * udev,void * data,u32 size)108 nvkm_udevice_info(struct nvkm_udevice *udev, void *data, u32 size)
109 {
110 struct nvkm_object *object = &udev->object;
111 struct nvkm_device *device = udev->device;
112 struct nvkm_fb *fb = device->fb;
113 struct nvkm_instmem *imem = device->imem;
114 union {
115 struct nv_device_info_v0 v0;
116 struct nv_device_info_v1 v1;
117 } *args = data;
118 int ret = -ENOSYS, i;
119
120 nvif_ioctl(object, "device info size %d\n", size);
121 if (!(ret = nvif_unpack(ret, &data, &size, args->v1, 1, 1, true))) {
122 nvif_ioctl(object, "device info vers %d count %d\n",
123 args->v1.version, args->v1.count);
124 if (args->v1.count * sizeof(args->v1.data[0]) == size) {
125 for (i = 0; i < args->v1.count; i++)
126 nvkm_udevice_info_v1(device, &args->v1.data[i]);
127 return 0;
128 }
129 return -EINVAL;
130 } else
131 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
132 nvif_ioctl(object, "device info vers %d\n", args->v0.version);
133 } else
134 return ret;
135
136 switch (device->chipset) {
137 case 0x01a:
138 case 0x01f:
139 case 0x04c:
140 case 0x04e:
141 case 0x063:
142 case 0x067:
143 case 0x068:
144 case 0x0aa:
145 case 0x0ac:
146 case 0x0af:
147 args->v0.platform = NV_DEVICE_INFO_V0_IGP;
148 break;
149 default:
150 switch (device->type) {
151 case NVKM_DEVICE_PCI:
152 args->v0.platform = NV_DEVICE_INFO_V0_PCI;
153 break;
154 case NVKM_DEVICE_AGP:
155 args->v0.platform = NV_DEVICE_INFO_V0_AGP;
156 break;
157 case NVKM_DEVICE_PCIE:
158 args->v0.platform = NV_DEVICE_INFO_V0_PCIE;
159 break;
160 case NVKM_DEVICE_TEGRA:
161 args->v0.platform = NV_DEVICE_INFO_V0_SOC;
162 break;
163 default:
164 WARN_ON(1);
165 break;
166 }
167 break;
168 }
169
170 switch (device->card_type) {
171 case NV_04: args->v0.family = NV_DEVICE_INFO_V0_TNT; break;
172 case NV_10:
173 case NV_11: args->v0.family = NV_DEVICE_INFO_V0_CELSIUS; break;
174 case NV_20: args->v0.family = NV_DEVICE_INFO_V0_KELVIN; break;
175 case NV_30: args->v0.family = NV_DEVICE_INFO_V0_RANKINE; break;
176 case NV_40: args->v0.family = NV_DEVICE_INFO_V0_CURIE; break;
177 case NV_50: args->v0.family = NV_DEVICE_INFO_V0_TESLA; break;
178 case NV_C0: args->v0.family = NV_DEVICE_INFO_V0_FERMI; break;
179 case NV_E0: args->v0.family = NV_DEVICE_INFO_V0_KEPLER; break;
180 case GM100: args->v0.family = NV_DEVICE_INFO_V0_MAXWELL; break;
181 case GP100: args->v0.family = NV_DEVICE_INFO_V0_PASCAL; break;
182 case GV100: args->v0.family = NV_DEVICE_INFO_V0_VOLTA; break;
183 case TU100: args->v0.family = NV_DEVICE_INFO_V0_TURING; break;
184 default:
185 args->v0.family = 0;
186 break;
187 }
188
189 args->v0.chipset = device->chipset;
190 args->v0.revision = device->chiprev;
191 if (fb && fb->ram)
192 args->v0.ram_size = args->v0.ram_user = fb->ram->size;
193 else
194 args->v0.ram_size = args->v0.ram_user = 0;
195 if (imem && args->v0.ram_size > 0)
196 args->v0.ram_user = args->v0.ram_user - imem->reserved;
197
198 strncpy(args->v0.chip, device->chip->name, sizeof(args->v0.chip));
199 strncpy(args->v0.name, device->name, sizeof(args->v0.name));
200 return 0;
201 }
202
203 static int
nvkm_udevice_time(struct nvkm_udevice * udev,void * data,u32 size)204 nvkm_udevice_time(struct nvkm_udevice *udev, void *data, u32 size)
205 {
206 struct nvkm_object *object = &udev->object;
207 struct nvkm_device *device = udev->device;
208 union {
209 struct nv_device_time_v0 v0;
210 } *args = data;
211 int ret = -ENOSYS;
212
213 nvif_ioctl(object, "device time size %d\n", size);
214 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
215 nvif_ioctl(object, "device time vers %d\n", args->v0.version);
216 args->v0.time = nvkm_timer_read(device->timer);
217 }
218
219 return ret;
220 }
221
222 static int
nvkm_udevice_mthd(struct nvkm_object * object,u32 mthd,void * data,u32 size)223 nvkm_udevice_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
224 {
225 struct nvkm_udevice *udev = nvkm_udevice(object);
226 nvif_ioctl(object, "device mthd %08x\n", mthd);
227 switch (mthd) {
228 case NV_DEVICE_V0_INFO:
229 return nvkm_udevice_info(udev, data, size);
230 case NV_DEVICE_V0_TIME:
231 return nvkm_udevice_time(udev, data, size);
232 default:
233 break;
234 }
235 return -EINVAL;
236 }
237
238 static int
nvkm_udevice_rd08(struct nvkm_object * object,u64 addr,u8 * data)239 nvkm_udevice_rd08(struct nvkm_object *object, u64 addr, u8 *data)
240 {
241 struct nvkm_udevice *udev = nvkm_udevice(object);
242 *data = nvkm_rd08(udev->device, addr);
243 return 0;
244 }
245
246 static int
nvkm_udevice_rd16(struct nvkm_object * object,u64 addr,u16 * data)247 nvkm_udevice_rd16(struct nvkm_object *object, u64 addr, u16 *data)
248 {
249 struct nvkm_udevice *udev = nvkm_udevice(object);
250 *data = nvkm_rd16(udev->device, addr);
251 return 0;
252 }
253
254 static int
nvkm_udevice_rd32(struct nvkm_object * object,u64 addr,u32 * data)255 nvkm_udevice_rd32(struct nvkm_object *object, u64 addr, u32 *data)
256 {
257 struct nvkm_udevice *udev = nvkm_udevice(object);
258 *data = nvkm_rd32(udev->device, addr);
259 return 0;
260 }
261
262 static int
nvkm_udevice_wr08(struct nvkm_object * object,u64 addr,u8 data)263 nvkm_udevice_wr08(struct nvkm_object *object, u64 addr, u8 data)
264 {
265 struct nvkm_udevice *udev = nvkm_udevice(object);
266 nvkm_wr08(udev->device, addr, data);
267 return 0;
268 }
269
270 static int
nvkm_udevice_wr16(struct nvkm_object * object,u64 addr,u16 data)271 nvkm_udevice_wr16(struct nvkm_object *object, u64 addr, u16 data)
272 {
273 struct nvkm_udevice *udev = nvkm_udevice(object);
274 nvkm_wr16(udev->device, addr, data);
275 return 0;
276 }
277
278 static int
nvkm_udevice_wr32(struct nvkm_object * object,u64 addr,u32 data)279 nvkm_udevice_wr32(struct nvkm_object *object, u64 addr, u32 data)
280 {
281 struct nvkm_udevice *udev = nvkm_udevice(object);
282 nvkm_wr32(udev->device, addr, data);
283 return 0;
284 }
285
286 static int
287 #ifdef __NetBSD__
nvkm_udevice_map(struct nvkm_object * object,void * argv,u32 argc,enum nvkm_object_map * type,bus_space_tag_t * tagp,u64 * addr,u64 * size)288 nvkm_udevice_map(struct nvkm_object *object, void *argv, u32 argc,
289 enum nvkm_object_map *type, bus_space_tag_t *tagp,
290 u64 *addr, u64 *size)
291 #else
292 nvkm_udevice_map(struct nvkm_object *object, void *argv, u32 argc,
293 enum nvkm_object_map *type, u64 *addr, u64 *size)
294 #endif
295 {
296 struct nvkm_udevice *udev = nvkm_udevice(object);
297 struct nvkm_device *device = udev->device;
298 *type = NVKM_OBJECT_MAP_IO;
299 #ifdef __NetBSD__
300 *tagp = device->func->resource_tag(device, 0);
301 #endif
302 *addr = device->func->resource_addr(device, 0);
303 *size = device->func->resource_size(device, 0);
304 return 0;
305 }
306
307 static int
nvkm_udevice_fini(struct nvkm_object * object,bool suspend)308 nvkm_udevice_fini(struct nvkm_object *object, bool suspend)
309 {
310 struct nvkm_udevice *udev = nvkm_udevice(object);
311 struct nvkm_device *device = udev->device;
312 int ret = 0;
313
314 mutex_lock(&device->mutex);
315 if (!--device->refcount) {
316 ret = nvkm_device_fini(device, suspend);
317 if (ret && suspend) {
318 device->refcount++;
319 goto done;
320 }
321 }
322
323 done:
324 mutex_unlock(&device->mutex);
325 return ret;
326 }
327
328 static int
nvkm_udevice_init(struct nvkm_object * object)329 nvkm_udevice_init(struct nvkm_object *object)
330 {
331 struct nvkm_udevice *udev = nvkm_udevice(object);
332 struct nvkm_device *device = udev->device;
333 int ret = 0;
334
335 mutex_lock(&device->mutex);
336 if (!device->refcount++) {
337 ret = nvkm_device_init(device);
338 if (ret) {
339 device->refcount--;
340 goto done;
341 }
342 }
343
344 done:
345 mutex_unlock(&device->mutex);
346 return ret;
347 }
348
349 static int
nvkm_udevice_child_new(const struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_object ** pobject)350 nvkm_udevice_child_new(const struct nvkm_oclass *oclass,
351 void *data, u32 size, struct nvkm_object **pobject)
352 {
353 struct nvkm_udevice *udev = nvkm_udevice(oclass->parent);
354 const struct nvkm_device_oclass *sclass = oclass->priv;
355 return sclass->ctor(udev->device, oclass, data, size, pobject);
356 }
357
358 static int
nvkm_udevice_child_get(struct nvkm_object * object,int index,struct nvkm_oclass * oclass)359 nvkm_udevice_child_get(struct nvkm_object *object, int index,
360 struct nvkm_oclass *oclass)
361 {
362 struct nvkm_udevice *udev = nvkm_udevice(object);
363 struct nvkm_device *device = udev->device;
364 struct nvkm_engine *engine;
365 u64 mask = (1ULL << NVKM_ENGINE_DMAOBJ) |
366 (1ULL << NVKM_ENGINE_FIFO) |
367 (1ULL << NVKM_ENGINE_DISP) |
368 (1ULL << NVKM_ENGINE_PM);
369 const struct nvkm_device_oclass *sclass = NULL;
370 int i;
371
372 for (; mask && !sclass && (i = __ffs64(mask), 1); mask &= ~(1ULL << i)) {
373 if (!(engine = nvkm_device_engine(device, i)) ||
374 !(engine->func->base.sclass))
375 continue;
376 oclass->engine = engine;
377
378 index -= engine->func->base.sclass(oclass, index, &sclass);
379 }
380
381 if (!sclass) {
382 if (index-- == 0)
383 sclass = &nvkm_control_oclass;
384 else if (device->mmu && index-- == 0)
385 sclass = &device->mmu->user;
386 else if (device->fault && index-- == 0)
387 sclass = &device->fault->user;
388 else
389 return -EINVAL;
390
391 oclass->base = sclass->base;
392 }
393
394 oclass->ctor = nvkm_udevice_child_new;
395 oclass->priv = sclass;
396 return 0;
397 }
398
399 static const struct nvkm_object_func
400 nvkm_udevice_super = {
401 .init = nvkm_udevice_init,
402 .fini = nvkm_udevice_fini,
403 .mthd = nvkm_udevice_mthd,
404 .map = nvkm_udevice_map,
405 .rd08 = nvkm_udevice_rd08,
406 .rd16 = nvkm_udevice_rd16,
407 .rd32 = nvkm_udevice_rd32,
408 .wr08 = nvkm_udevice_wr08,
409 .wr16 = nvkm_udevice_wr16,
410 .wr32 = nvkm_udevice_wr32,
411 .sclass = nvkm_udevice_child_get,
412 };
413
414 static const struct nvkm_object_func
415 nvkm_udevice = {
416 .init = nvkm_udevice_init,
417 .fini = nvkm_udevice_fini,
418 .mthd = nvkm_udevice_mthd,
419 .sclass = nvkm_udevice_child_get,
420 };
421
422 static int
nvkm_udevice_new(const struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_object ** pobject)423 nvkm_udevice_new(const struct nvkm_oclass *oclass, void *data, u32 size,
424 struct nvkm_object **pobject)
425 {
426 union {
427 struct nv_device_v0 v0;
428 } *args = data;
429 struct nvkm_client *client = oclass->client;
430 struct nvkm_object *parent = &client->object;
431 const struct nvkm_object_func *func;
432 struct nvkm_udevice *udev;
433 int ret = -ENOSYS;
434
435 nvif_ioctl(parent, "create device size %d\n", size);
436 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
437 nvif_ioctl(parent, "create device v%d device %016"PRIx64"\n",
438 args->v0.version, args->v0.device);
439 } else
440 return ret;
441
442 /* give priviledged clients register access */
443 if (client->super)
444 func = &nvkm_udevice_super;
445 else
446 func = &nvkm_udevice;
447
448 if (!(udev = kzalloc(sizeof(*udev), GFP_KERNEL)))
449 return -ENOMEM;
450 nvkm_object_ctor(func, oclass, &udev->object);
451 *pobject = &udev->object;
452
453 /* find the device that matches what the client requested */
454 if (args->v0.device != ~0)
455 udev->device = nvkm_device_find(args->v0.device);
456 else
457 udev->device = nvkm_device_find(client->device);
458 if (!udev->device)
459 return -ENODEV;
460
461 return 0;
462 }
463
464 const struct nvkm_sclass
465 nvkm_udevice_sclass = {
466 .oclass = NV_DEVICE,
467 .minver = 0,
468 .maxver = 0,
469 .ctor = nvkm_udevice_new,
470 };
471