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(struct nvkm_udevice *udev, void *data, u32 size) 44 { 45 struct nvkm_object *object = &udev->object; 46 struct nvkm_device *device = udev->device; 47 struct nvkm_fb *fb = device->fb; 48 struct nvkm_instmem *imem = device->imem; 49 union { 50 struct nv_device_info_v0 v0; 51 } *args = data; 52 int ret = -ENOSYS; 53 54 nvif_ioctl(object, "device info size %d\n", size); 55 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) { 56 nvif_ioctl(object, "device info vers %d\n", args->v0.version); 57 } else 58 return ret; 59 60 switch (device->chipset) { 61 case 0x01a: 62 case 0x01f: 63 case 0x04c: 64 case 0x04e: 65 case 0x063: 66 case 0x067: 67 case 0x068: 68 case 0x0aa: 69 case 0x0ac: 70 case 0x0af: 71 args->v0.platform = NV_DEVICE_INFO_V0_IGP; 72 break; 73 default: 74 switch (device->type) { 75 case NVKM_DEVICE_PCI: 76 args->v0.platform = NV_DEVICE_INFO_V0_PCI; 77 break; 78 case NVKM_DEVICE_AGP: 79 args->v0.platform = NV_DEVICE_INFO_V0_AGP; 80 break; 81 case NVKM_DEVICE_PCIE: 82 args->v0.platform = NV_DEVICE_INFO_V0_PCIE; 83 break; 84 case NVKM_DEVICE_TEGRA: 85 args->v0.platform = NV_DEVICE_INFO_V0_SOC; 86 break; 87 default: 88 WARN_ON(1); 89 break; 90 } 91 break; 92 } 93 94 switch (device->card_type) { 95 case NV_04: args->v0.family = NV_DEVICE_INFO_V0_TNT; break; 96 case NV_10: 97 case NV_11: args->v0.family = NV_DEVICE_INFO_V0_CELSIUS; break; 98 case NV_20: args->v0.family = NV_DEVICE_INFO_V0_KELVIN; break; 99 case NV_30: args->v0.family = NV_DEVICE_INFO_V0_RANKINE; break; 100 case NV_40: args->v0.family = NV_DEVICE_INFO_V0_CURIE; break; 101 case NV_50: args->v0.family = NV_DEVICE_INFO_V0_TESLA; break; 102 case NV_C0: args->v0.family = NV_DEVICE_INFO_V0_FERMI; break; 103 case NV_E0: args->v0.family = NV_DEVICE_INFO_V0_KEPLER; break; 104 case GM100: args->v0.family = NV_DEVICE_INFO_V0_MAXWELL; break; 105 default: 106 args->v0.family = 0; 107 break; 108 } 109 110 args->v0.chipset = device->chipset; 111 args->v0.revision = device->chiprev; 112 if (fb && fb->ram) 113 args->v0.ram_size = args->v0.ram_user = fb->ram->size; 114 else 115 args->v0.ram_size = args->v0.ram_user = 0; 116 if (imem && args->v0.ram_size > 0) 117 args->v0.ram_user = args->v0.ram_user - imem->reserved; 118 119 strncpy(args->v0.chip, device->chip->name, sizeof(args->v0.chip)); 120 strncpy(args->v0.name, device->name, sizeof(args->v0.name)); 121 return 0; 122 } 123 124 static int 125 nvkm_udevice_time(struct nvkm_udevice *udev, void *data, u32 size) 126 { 127 struct nvkm_object *object = &udev->object; 128 struct nvkm_device *device = udev->device; 129 union { 130 struct nv_device_time_v0 v0; 131 } *args = data; 132 int ret = -ENOSYS; 133 134 nvif_ioctl(object, "device time size %d\n", size); 135 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) { 136 nvif_ioctl(object, "device time vers %d\n", args->v0.version); 137 args->v0.time = nvkm_timer_read(device->timer); 138 } 139 140 return ret; 141 } 142 143 static int 144 nvkm_udevice_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size) 145 { 146 struct nvkm_udevice *udev = nvkm_udevice(object); 147 nvif_ioctl(object, "device mthd %08x\n", mthd); 148 switch (mthd) { 149 case NV_DEVICE_V0_INFO: 150 return nvkm_udevice_info(udev, data, size); 151 case NV_DEVICE_V0_TIME: 152 return nvkm_udevice_time(udev, data, size); 153 default: 154 break; 155 } 156 return -EINVAL; 157 } 158 159 static int 160 nvkm_udevice_rd08(struct nvkm_object *object, u64 addr, u8 *data) 161 { 162 struct nvkm_udevice *udev = nvkm_udevice(object); 163 *data = nvkm_rd08(udev->device, addr); 164 return 0; 165 } 166 167 static int 168 nvkm_udevice_rd16(struct nvkm_object *object, u64 addr, u16 *data) 169 { 170 struct nvkm_udevice *udev = nvkm_udevice(object); 171 *data = nvkm_rd16(udev->device, addr); 172 return 0; 173 } 174 175 static int 176 nvkm_udevice_rd32(struct nvkm_object *object, u64 addr, u32 *data) 177 { 178 struct nvkm_udevice *udev = nvkm_udevice(object); 179 *data = nvkm_rd32(udev->device, addr); 180 return 0; 181 } 182 183 static int 184 nvkm_udevice_wr08(struct nvkm_object *object, u64 addr, u8 data) 185 { 186 struct nvkm_udevice *udev = nvkm_udevice(object); 187 nvkm_wr08(udev->device, addr, data); 188 return 0; 189 } 190 191 static int 192 nvkm_udevice_wr16(struct nvkm_object *object, u64 addr, u16 data) 193 { 194 struct nvkm_udevice *udev = nvkm_udevice(object); 195 nvkm_wr16(udev->device, addr, data); 196 return 0; 197 } 198 199 static int 200 nvkm_udevice_wr32(struct nvkm_object *object, u64 addr, u32 data) 201 { 202 struct nvkm_udevice *udev = nvkm_udevice(object); 203 nvkm_wr32(udev->device, addr, data); 204 return 0; 205 } 206 207 static int 208 nvkm_udevice_map(struct nvkm_object *object, u64 *addr, u32 *size) 209 { 210 struct nvkm_udevice *udev = nvkm_udevice(object); 211 struct nvkm_device *device = udev->device; 212 *addr = device->func->resource_addr(device, 0); 213 *size = device->func->resource_size(device, 0); 214 return 0; 215 } 216 217 static int 218 nvkm_udevice_fini(struct nvkm_object *object, bool suspend) 219 { 220 struct nvkm_udevice *udev = nvkm_udevice(object); 221 struct nvkm_device *device = udev->device; 222 int ret = 0; 223 224 mutex_lock(&device->mutex); 225 if (!--device->refcount) { 226 ret = nvkm_device_fini(device, suspend); 227 if (ret && suspend) { 228 device->refcount++; 229 goto done; 230 } 231 } 232 233 done: 234 mutex_unlock(&device->mutex); 235 return ret; 236 } 237 238 static int 239 nvkm_udevice_init(struct nvkm_object *object) 240 { 241 struct nvkm_udevice *udev = nvkm_udevice(object); 242 struct nvkm_device *device = udev->device; 243 int ret = 0; 244 245 mutex_lock(&device->mutex); 246 if (!device->refcount++) { 247 ret = nvkm_device_init(device); 248 if (ret) { 249 device->refcount--; 250 goto done; 251 } 252 } 253 254 done: 255 mutex_unlock(&device->mutex); 256 return ret; 257 } 258 259 static int 260 nvkm_udevice_child_new(const struct nvkm_oclass *oclass, 261 void *data, u32 size, struct nvkm_object **pobject) 262 { 263 struct nvkm_udevice *udev = nvkm_udevice(oclass->parent); 264 const struct nvkm_device_oclass *sclass = oclass->priv; 265 return sclass->ctor(udev->device, oclass, data, size, pobject); 266 } 267 268 static int 269 nvkm_udevice_child_get(struct nvkm_object *object, int index, 270 struct nvkm_oclass *oclass) 271 { 272 struct nvkm_udevice *udev = nvkm_udevice(object); 273 struct nvkm_device *device = udev->device; 274 struct nvkm_engine *engine; 275 u64 mask = (1ULL << NVKM_ENGINE_DMAOBJ) | 276 (1ULL << NVKM_ENGINE_FIFO) | 277 (1ULL << NVKM_ENGINE_DISP) | 278 (1ULL << NVKM_ENGINE_PM); 279 const struct nvkm_device_oclass *sclass = NULL; 280 int i; 281 282 for (; i = __ffs64(mask), mask && !sclass; mask &= ~(1ULL << i)) { 283 if (!(engine = nvkm_device_engine(device, i)) || 284 !(engine->func->base.sclass)) 285 continue; 286 oclass->engine = engine; 287 288 index -= engine->func->base.sclass(oclass, index, &sclass); 289 } 290 291 if (!sclass) { 292 switch (index) { 293 case 0: sclass = &nvkm_control_oclass; break; 294 default: 295 return -EINVAL; 296 } 297 oclass->base = sclass->base; 298 } 299 300 oclass->ctor = nvkm_udevice_child_new; 301 oclass->priv = sclass; 302 return 0; 303 } 304 305 static const struct nvkm_object_func 306 nvkm_udevice_super = { 307 .init = nvkm_udevice_init, 308 .fini = nvkm_udevice_fini, 309 .mthd = nvkm_udevice_mthd, 310 .map = nvkm_udevice_map, 311 .rd08 = nvkm_udevice_rd08, 312 .rd16 = nvkm_udevice_rd16, 313 .rd32 = nvkm_udevice_rd32, 314 .wr08 = nvkm_udevice_wr08, 315 .wr16 = nvkm_udevice_wr16, 316 .wr32 = nvkm_udevice_wr32, 317 .sclass = nvkm_udevice_child_get, 318 }; 319 320 static const struct nvkm_object_func 321 nvkm_udevice = { 322 .init = nvkm_udevice_init, 323 .fini = nvkm_udevice_fini, 324 .mthd = nvkm_udevice_mthd, 325 .sclass = nvkm_udevice_child_get, 326 }; 327 328 int 329 nvkm_udevice_new(const struct nvkm_oclass *oclass, void *data, u32 size, 330 struct nvkm_object **pobject) 331 { 332 union { 333 struct nv_device_v0 v0; 334 } *args = data; 335 struct nvkm_client *client = oclass->client; 336 struct nvkm_object *parent = &client->object; 337 const struct nvkm_object_func *func; 338 struct nvkm_udevice *udev; 339 int ret = -ENOSYS; 340 341 nvif_ioctl(parent, "create device size %d\n", size); 342 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) { 343 nvif_ioctl(parent, "create device v%d device %016llx\n", 344 args->v0.version, args->v0.device); 345 } else 346 return ret; 347 348 /* give priviledged clients register access */ 349 if (client->super) 350 func = &nvkm_udevice_super; 351 else 352 func = &nvkm_udevice; 353 354 if (!(udev = kzalloc(sizeof(*udev), GFP_KERNEL))) 355 return -ENOMEM; 356 nvkm_object_ctor(func, oclass, &udev->object); 357 *pobject = &udev->object; 358 359 /* find the device that matches what the client requested */ 360 if (args->v0.device != ~0) 361 udev->device = nvkm_device_find(args->v0.device); 362 else 363 udev->device = nvkm_device_find(client->device); 364 if (!udev->device) 365 return -ENODEV; 366 367 return 0; 368 } 369 370 const struct nvkm_sclass 371 nvkm_udevice_sclass = { 372 .oclass = NV_DEVICE, 373 .minver = 0, 374 .maxver = 0, 375 .ctor = nvkm_udevice_new, 376 }; 377