drivers/gpu/drm/nouveau/core/subdev/device/base.c

   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
  25 #include <core/object.h>
  26 #include <core/device.h>
  27 #include <core/client.h>
  28 #include <core/device.h>
  29 #include <core/option.h>
  30
  31 #include <core/class.h>
  32
  33 #include <subdev/device.h>
  34
  35 static DEFINE_MUTEX(nv_devices_mutex);
  36 static LIST_HEAD(nv_devices);
  37
  38 struct nouveau_device *
  39 nouveau_device_find(u64 name)
  40 {
  41         struct nouveau_device *device, *match = NULL;
  42         mutex_lock(&nv_devices_mutex);
  43         list_for_each_entry(device, &nv_devices, head) {
  44                 if (device->handle == name) {
  45                         match = device;
  46                         break;
  47                 }
  48         }
  49         mutex_unlock(&nv_devices_mutex);
  50         return match;
  51 }
  52
  53 /******************************************************************************
  54  * nouveau_devobj (0x0080): class implementation
  55  *****************************************************************************/
  56 struct nouveau_devobj {
  57         struct nouveau_parent base;
  58         struct nouveau_object *subdev[NVDEV_SUBDEV_NR];
  59         bool created;
  60 };
  61
  62 static const u64 disable_map[] = {
  63         [NVDEV_SUBDEV_VBIOS]    = NV_DEVICE_DISABLE_VBIOS,
  64         [NVDEV_SUBDEV_GPIO]     = NV_DEVICE_DISABLE_CORE,
  65         [NVDEV_SUBDEV_I2C]      = NV_DEVICE_DISABLE_CORE,
  66         [NVDEV_SUBDEV_DEVINIT]  = NV_DEVICE_DISABLE_CORE,
  67         [NVDEV_SUBDEV_MC]       = NV_DEVICE_DISABLE_CORE,
  68         [NVDEV_SUBDEV_TIMER]    = NV_DEVICE_DISABLE_CORE,
  69         [NVDEV_SUBDEV_FB]       = NV_DEVICE_DISABLE_CORE,
  70         [NVDEV_SUBDEV_VM]       = NV_DEVICE_DISABLE_CORE,
  71         [NVDEV_SUBDEV_INSTMEM]  = NV_DEVICE_DISABLE_CORE,
  72         [NVDEV_SUBDEV_BAR]      = NV_DEVICE_DISABLE_CORE,
  73         [NVDEV_SUBDEV_VOLT]     = NV_DEVICE_DISABLE_CORE,
  74         [NVDEV_SUBDEV_CLOCK]    = NV_DEVICE_DISABLE_CORE,
  75         [NVDEV_SUBDEV_THERM]    = NV_DEVICE_DISABLE_CORE,
  76         [NVDEV_ENGINE_DMAOBJ]   = NV_DEVICE_DISABLE_CORE,
  77         [NVDEV_ENGINE_GR]       = NV_DEVICE_DISABLE_GRAPH,
  78         [NVDEV_ENGINE_MPEG]     = NV_DEVICE_DISABLE_MPEG,
  79         [NVDEV_ENGINE_ME]       = NV_DEVICE_DISABLE_ME,
  80         [NVDEV_ENGINE_VP]       = NV_DEVICE_DISABLE_VP,
  81         [NVDEV_ENGINE_CRYPT]    = NV_DEVICE_DISABLE_CRYPT,
  82         [NVDEV_ENGINE_BSP]      = NV_DEVICE_DISABLE_BSP,
  83         [NVDEV_ENGINE_PPP]      = NV_DEVICE_DISABLE_PPP,
  84         [NVDEV_ENGINE_COPY0]    = NV_DEVICE_DISABLE_COPY0,
  85         [NVDEV_ENGINE_COPY1]    = NV_DEVICE_DISABLE_COPY1,
  86         [NVDEV_ENGINE_UNK1C1]   = NV_DEVICE_DISABLE_UNK1C1,
  87         [NVDEV_ENGINE_FIFO]     = NV_DEVICE_DISABLE_FIFO,
  88         [NVDEV_ENGINE_DISP]     = NV_DEVICE_DISABLE_DISP,
  89         [NVDEV_SUBDEV_NR]       = 0,
  90 };
  91
  92 static int
  93 nouveau_devobj_ctor(struct nouveau_object *parent,
  94                     struct nouveau_object *engine,
  95                     struct nouveau_oclass *oclass, void *data, u32 size,
  96                     struct nouveau_object **pobject)
  97 {
  98         struct nouveau_client *client = nv_client(parent);
  99         struct nouveau_device *device;
 100         struct nouveau_devobj *devobj;
 101         struct nv_device_class *args = data;
 102         u64 disable, boot0, strap;
 103         u64 mmio_base, mmio_size;
 104         void __iomem *map;
 105         int ret, i, c;
 106
 107         if (size < sizeof(struct nv_device_class))
 108                 return -EINVAL;
 109
 110         /* find the device subdev that matches what the client requested */
 111         device = nv_device(client->device);
 112         if (args->device != ~0) {
 113                 device = nouveau_device_find(args->device);
 114                 if (!device)
 115                         return -ENODEV;
 116         }
 117
 118         ret = nouveau_parent_create(parent, nv_object(device), oclass, 0, NULL,
 119                                     (1ULL << NVDEV_ENGINE_DMAOBJ) |
 120                                     (1ULL << NVDEV_ENGINE_FIFO) |
 121                                     (1ULL << NVDEV_ENGINE_DISP), &devobj);
 122         *pobject = nv_object(devobj);
 123         if (ret)
 124                 return ret;
 125
 126         mmio_base = pci_resource_start(device->pdev, 0);
 127         mmio_size = pci_resource_len(device->pdev, 0);
 128
 129         /* translate api disable mask into internal mapping */
 130         disable = args->debug0;
 131         for (i = 0; i < NVDEV_SUBDEV_NR; i++) {
 132                 if (args->disable & disable_map[i])
 133                         disable |= (1ULL << i);
 134         }
 135
 136         /* identify the chipset, and determine classes of subdev/engines */
 137         if (!(args->disable & NV_DEVICE_DISABLE_IDENTIFY) &&
 138             !device->card_type) {
 139                 map = ioremap(mmio_base, 0x102000);
 140                 if (map == NULL)
 141                         return -ENOMEM;
 142
 143                 /* switch mmio to cpu's native endianness */
 144 #ifndef __BIG_ENDIAN
 145                 if (ioread32_native(map + 0x000004) != 0x00000000)
 146 #else
 147                 if (ioread32_native(map + 0x000004) == 0x00000000)
 148 #endif
 149                         iowrite32_native(0x01000001, map + 0x000004);
 150
 151                 /* read boot0 and strapping information */
 152                 boot0 = ioread32_native(map + 0x000000);
 153                 strap = ioread32_native(map + 0x101000);
 154                 iounmap(map);
 155
 156                 /* determine chipset and derive architecture from it */
 157                 if ((boot0 & 0x0f000000) > 0) {
 158                         device->chipset = (boot0 & 0xff00000) >> 20;
 159                         switch (device->chipset & 0xf0) {
 160                         case 0x10: device->card_type = NV_10; break;
 161                         case 0x20: device->card_type = NV_20; break;
 162                         case 0x30: device->card_type = NV_30; break;
 163                         case 0x40:
 164                         case 0x60: device->card_type = NV_40; break;
 165                         case 0x50:
 166                         case 0x80:
 167                         case 0x90:
 168                         case 0xa0: device->card_type = NV_50; break;
 169                         case 0xc0: device->card_type = NV_C0; break;
 170                         case 0xd0: device->card_type = NV_D0; break;
 171                         case 0xe0: device->card_type = NV_E0; break;
 172                         default:
 173                                 break;
 174                         }
 175                 } else
 176                 if ((boot0 & 0xff00fff0) == 0x20004000) {
 177                         if (boot0 & 0x00f00000)
 178                                 device->chipset = 0x05;
 179                         else
 180                                 device->chipset = 0x04;
 181                         device->card_type = NV_04;
 182                 }
 183
 184                 switch (device->card_type) {
 185                 case NV_04: ret = nv04_identify(device); break;
 186                 case NV_10: ret = nv10_identify(device); break;
 187                 case NV_20: ret = nv20_identify(device); break;
 188                 case NV_30: ret = nv30_identify(device); break;
 189                 case NV_40: ret = nv40_identify(device); break;
 190                 case NV_50: ret = nv50_identify(device); break;
 191                 case NV_C0:
 192                 case NV_D0: ret = nvc0_identify(device); break;
 193                 case NV_E0: ret = nve0_identify(device); break;
 194                 default:
 195                         ret = -EINVAL;
 196                         break;
 197                 }
 198
 199                 if (ret) {
 200                         nv_error(device, "unknown chipset, 0x%08x\n", boot0);
 201                         return ret;
 202                 }
 203
 204                 nv_info(device, "BOOT0  : 0x%08x\n", boot0);
 205                 nv_info(device, "Chipset: %s (NV%02X)\n",
 206                         device->cname, device->chipset);
 207                 nv_info(device, "Family : NV%02X\n", device->card_type);
 208
 209                 /* determine frequency of timing crystal */
 210                 if ( device->chipset < 0x17 ||
 211                     (device->chipset >= 0x20 && device->chipset <= 0x25))
 212                         strap &= 0x00000040;
 213                 else
 214                         strap &= 0x00400040;
 215
 216                 switch (strap) {
 217                 case 0x00000000: device->crystal = 13500; break;
 218                 case 0x00000040: device->crystal = 14318; break;
 219                 case 0x00400000: device->crystal = 27000; break;
 220                 case 0x00400040: device->crystal = 25000; break;
 221                 }
 222
 223                 nv_debug(device, "crystal freq: %dKHz\n", device->crystal);
 224         }
 225
 226         if (!(args->disable & NV_DEVICE_DISABLE_MMIO) &&
 227             !nv_subdev(device)->mmio) {
 228                 nv_subdev(device)->mmio  = ioremap(mmio_base, mmio_size);
 229                 if (!nv_subdev(device)->mmio) {
 230                         nv_error(device, "unable to map device registers\n");
 231                         return -ENOMEM;
 232                 }
 233         }
 234
 235         /* ensure requested subsystems are available for use */
 236         for (i = 0, c = 0; i < NVDEV_SUBDEV_NR; i++) {
 237                 if (!(oclass = device->oclass[i]) || (disable & (1ULL << i)))
 238                         continue;
 239
 240                 if (!device->subdev[i]) {
 241                         ret = nouveau_object_ctor(nv_object(device), NULL,
 242                                                   oclass, NULL, i,
 243                                                   &devobj->subdev[i]);
 244                         if (ret == -ENODEV)
 245                                 continue;
 246                         if (ret)
 247                                 return ret;
 248
 249                         if (nv_iclass(devobj->subdev[i], NV_ENGINE_CLASS))
 250                                 nouveau_subdev_reset(devobj->subdev[i]);
 251                 } else {
 252                         nouveau_object_ref(device->subdev[i],
 253                                           &devobj->subdev[i]);
 254                 }
 255
 256                 /* note: can't init *any* subdevs until devinit has been run
 257                  * due to not knowing exactly what the vbios init tables will
 258                  * mess with.  devinit also can't be run until all of its
 259                  * dependencies have been created.
 260                  *
 261                  * this code delays init of any subdev until all of devinit's
 262                  * dependencies have been created, and then initialises each
 263                  * subdev in turn as they're created.
 264                  */
 265                 while (i >= NVDEV_SUBDEV_DEVINIT_LAST && c <= i) {
 266                         struct nouveau_object *subdev = devobj->subdev[c++];
 267                         if (subdev && !nv_iclass(subdev, NV_ENGINE_CLASS)) {
 268                                 ret = nouveau_object_inc(subdev);
 269                                 if (ret)
 270                                         return ret;
 271                         }
 272                 }
 273         }
 274
 275         return 0;
 276 }
 277
 278 static void
 279 nouveau_devobj_dtor(struct nouveau_object *object)
 280 {
 281         struct nouveau_devobj *devobj = (void *)object;
 282         int i;
 283
 284         for (i = NVDEV_SUBDEV_NR - 1; i >= 0; i--)
 285                 nouveau_object_ref(NULL, &devobj->subdev[i]);
 286
 287         nouveau_parent_destroy(&devobj->base);
 288 }
 289
 290 static int
 291 nouveau_devobj_init(struct nouveau_object *object)
 292 {
 293         struct nouveau_devobj *devobj = (void *)object;
 294         struct nouveau_object *subdev;
 295         int ret, i;
 296
 297         ret = nouveau_parent_init(&devobj->base);
 298         if (ret)
 299                 return ret;
 300
 301         for (i = 0; devobj->created && i < NVDEV_SUBDEV_NR; i++) {
 302                 if ((subdev = devobj->subdev[i])) {
 303                         if (!nv_iclass(subdev, NV_ENGINE_CLASS)) {
 304                                 ret = nouveau_object_inc(subdev);
 305                                 if (ret)
 306                                         goto fail;
 307                         }
 308                 }
 309         }
 310
 311         devobj->created = true;
 312         return 0;
 313
 314 fail:
 315         for (--i; i >= 0; i--) {
 316                 if ((subdev = devobj->subdev[i])) {
 317                         if (!nv_iclass(subdev, NV_ENGINE_CLASS))
 318                                 nouveau_object_dec(subdev, false);
 319                 }
 320         }
 321
 322         return ret;
 323 }
 324
 325 static int
 326 nouveau_devobj_fini(struct nouveau_object *object, bool suspend)
 327 {
 328         struct nouveau_devobj *devobj = (void *)object;
 329         struct nouveau_object *subdev;
 330         int ret, i;
 331
 332         for (i = NVDEV_SUBDEV_NR - 1; i >= 0; i--) {
 333                 if ((subdev = devobj->subdev[i])) {
 334                         if (!nv_iclass(subdev, NV_ENGINE_CLASS)) {
 335                                 ret = nouveau_object_dec(subdev, suspend);
 336                                 if (ret && suspend)
 337                                         goto fail;
 338                         }
 339                 }
 340         }
 341
 342         ret = nouveau_parent_fini(&devobj->base, suspend);
 343 fail:
 344         for (; ret && suspend && i < NVDEV_SUBDEV_NR; i++) {
 345                 if ((subdev = devobj->subdev[i])) {
 346                         if (!nv_iclass(subdev, NV_ENGINE_CLASS)) {
 347                                 ret = nouveau_object_inc(subdev);
 348                                 if (ret) {
 349                                         /* XXX */
 350                                 }
 351                         }
 352                 }
 353         }
 354
 355         return ret;
 356 }
 357
 358 static u8
 359 nouveau_devobj_rd08(struct nouveau_object *object, u32 addr)
 360 {
 361         return nv_rd08(object->engine, addr);
 362 }
 363
 364 static u16
 365 nouveau_devobj_rd16(struct nouveau_object *object, u32 addr)
 366 {
 367         return nv_rd16(object->engine, addr);
 368 }
 369
 370 static u32
 371 nouveau_devobj_rd32(struct nouveau_object *object, u32 addr)
 372 {
 373         return nv_rd32(object->engine, addr);
 374 }
 375
 376 static void
 377 nouveau_devobj_wr08(struct nouveau_object *object, u32 addr, u8 data)
 378 {
 379         nv_wr08(object->engine, addr, data);
 380 }
 381
 382 static void
 383 nouveau_devobj_wr16(struct nouveau_object *object, u32 addr, u16 data)
 384 {
 385         nv_wr16(object->engine, addr, data);
 386 }
 387
 388 static void
 389 nouveau_devobj_wr32(struct nouveau_object *object, u32 addr, u32 data)
 390 {
 391         nv_wr32(object->engine, addr, data);
 392 }
 393
 394 static struct nouveau_ofuncs
 395 nouveau_devobj_ofuncs = {
 396         .ctor = nouveau_devobj_ctor,
 397         .dtor = nouveau_devobj_dtor,
 398         .init = nouveau_devobj_init,
 399         .fini = nouveau_devobj_fini,
 400         .rd08 = nouveau_devobj_rd08,
 401         .rd16 = nouveau_devobj_rd16,
 402         .rd32 = nouveau_devobj_rd32,
 403         .wr08 = nouveau_devobj_wr08,
 404         .wr16 = nouveau_devobj_wr16,
 405         .wr32 = nouveau_devobj_wr32,
 406 };
 407
 408 /******************************************************************************
 409  * nouveau_device: engine functions
 410  *****************************************************************************/
 411 struct nouveau_oclass
 412 nouveau_device_sclass[] = {
 413         { 0x0080, &nouveau_devobj_ofuncs },
 414         {}
 415 };
 416
 417 static void
 418 nouveau_device_dtor(struct nouveau_object *object)
 419 {
 420         struct nouveau_device *device = (void *)object;
 421
 422         mutex_lock(&nv_devices_mutex);
 423         list_del(&device->head);
 424         mutex_unlock(&nv_devices_mutex);
 425
 426         if (device->base.mmio)
 427                 iounmap(device->base.mmio);
 428
 429         nouveau_subdev_destroy(&device->base);
 430 }
 431
 432 static struct nouveau_oclass
 433 nouveau_device_oclass = {
 434         .handle = NV_SUBDEV(DEVICE, 0x00),
 435         .ofuncs = &(struct nouveau_ofuncs) {
 436                 .dtor = nouveau_device_dtor,
 437         },
 438 };
 439
 440 int
 441 nouveau_device_create_(struct pci_dev *pdev, u64 name, const char *sname,
 442                        const char *cfg, const char *dbg,
 443                        int length, void **pobject)
 444 {
 445         struct nouveau_device *device;
 446         int ret = -EEXIST;
 447
 448         mutex_lock(&nv_devices_mutex);
 449         list_for_each_entry(device, &nv_devices, head) {
 450                 if (device->handle == name)
 451                         goto done;
 452         }
 453
 454         ret = nouveau_subdev_create_(NULL, NULL, &nouveau_device_oclass, 0,
 455                                      "DEVICE", "device", length, pobject);
 456         device = *pobject;
 457         if (ret)
 458                 goto done;
 459
 460         atomic_set(&nv_object(device)->usecount, 2);
 461         device->pdev = pdev;
 462         device->handle = name;
 463         device->cfgopt = cfg;
 464         device->dbgopt = dbg;
 465         device->name = sname;
 466
 467         nv_subdev(device)->debug = nouveau_dbgopt(device->dbgopt, "DEVICE");
 468         list_add(&device->head, &nv_devices);
 469 done:
 470         mutex_unlock(&nv_devices_mutex);
 471         return ret;
 472 }