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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 (client->super) 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