Pileus Git - ~andy/linux/blob - drivers/gpu/drm/nouveau/core/engine/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/option.h>
  29
  30 #include <core/class.h>
  31
  32 #include "priv.h"
  33
  34 static DEFINE_MUTEX(nv_devices_mutex);
  35 static LIST_HEAD(nv_devices);
  36
  37 struct nouveau_device *
  38 nouveau_device_find(u64 name)
  39 {
  40         struct nouveau_device *device, *match = NULL;
  41         mutex_lock(&nv_devices_mutex);
  42         list_for_each_entry(device, &nv_devices, head) {
  43                 if (device->handle == name) {
  44                         match = device;
  45                         break;
  46                 }
  47         }
  48         mutex_unlock(&nv_devices_mutex);
  49         return match;
  50 }
  51
  52 /******************************************************************************
  53  * nouveau_devobj (0x0080): class implementation
  54  *****************************************************************************/
  55 struct nouveau_devobj {
  56         struct nouveau_parent base;
  57         struct nouveau_object *subdev[NVDEV_SUBDEV_NR];
  58 };
  59
  60 static const u64 disable_map[] = {
  61         [NVDEV_SUBDEV_VBIOS]    = NV_DEVICE_DISABLE_VBIOS,
  62         [NVDEV_SUBDEV_DEVINIT]  = NV_DEVICE_DISABLE_CORE,
  63         [NVDEV_SUBDEV_GPIO]     = NV_DEVICE_DISABLE_CORE,
  64         [NVDEV_SUBDEV_I2C]      = NV_DEVICE_DISABLE_CORE,
  65         [NVDEV_SUBDEV_CLOCK]    = NV_DEVICE_DISABLE_CORE,
  66         [NVDEV_SUBDEV_MXM]      = NV_DEVICE_DISABLE_CORE,
  67         [NVDEV_SUBDEV_MC]       = NV_DEVICE_DISABLE_CORE,
  68         [NVDEV_SUBDEV_BUS]      = NV_DEVICE_DISABLE_CORE,
  69         [NVDEV_SUBDEV_TIMER]    = NV_DEVICE_DISABLE_CORE,
  70         [NVDEV_SUBDEV_FB]       = NV_DEVICE_DISABLE_CORE,
  71         [NVDEV_SUBDEV_LTCG]     = NV_DEVICE_DISABLE_CORE,
  72         [NVDEV_SUBDEV_IBUS]     = NV_DEVICE_DISABLE_CORE,
  73         [NVDEV_SUBDEV_INSTMEM]  = NV_DEVICE_DISABLE_CORE,
  74         [NVDEV_SUBDEV_VM]       = NV_DEVICE_DISABLE_CORE,
  75         [NVDEV_SUBDEV_BAR]      = NV_DEVICE_DISABLE_CORE,
  76         [NVDEV_SUBDEV_VOLT]     = NV_DEVICE_DISABLE_CORE,
  77         [NVDEV_SUBDEV_THERM]    = NV_DEVICE_DISABLE_CORE,
  78         [NVDEV_SUBDEV_PWR]      = NV_DEVICE_DISABLE_CORE,
  79         [NVDEV_ENGINE_DMAOBJ]   = NV_DEVICE_DISABLE_CORE,
  80         [NVDEV_ENGINE_PERFMON]  = NV_DEVICE_DISABLE_CORE,
  81         [NVDEV_ENGINE_FIFO]     = NV_DEVICE_DISABLE_FIFO,
  82         [NVDEV_ENGINE_SW]       = NV_DEVICE_DISABLE_FIFO,
  83         [NVDEV_ENGINE_GR]       = NV_DEVICE_DISABLE_GRAPH,
  84         [NVDEV_ENGINE_MPEG]     = NV_DEVICE_DISABLE_MPEG,
  85         [NVDEV_ENGINE_ME]       = NV_DEVICE_DISABLE_ME,
  86         [NVDEV_ENGINE_VP]       = NV_DEVICE_DISABLE_VP,
  87         [NVDEV_ENGINE_CRYPT]    = NV_DEVICE_DISABLE_CRYPT,
  88         [NVDEV_ENGINE_BSP]      = NV_DEVICE_DISABLE_BSP,
  89         [NVDEV_ENGINE_PPP]      = NV_DEVICE_DISABLE_PPP,
  90         [NVDEV_ENGINE_COPY0]    = NV_DEVICE_DISABLE_COPY0,
  91         [NVDEV_ENGINE_COPY1]    = NV_DEVICE_DISABLE_COPY1,
  92         [NVDEV_ENGINE_VIC]      = NV_DEVICE_DISABLE_VIC,
  93         [NVDEV_ENGINE_VENC]     = NV_DEVICE_DISABLE_VENC,
  94         [NVDEV_ENGINE_DISP]     = NV_DEVICE_DISABLE_DISP,
  95         [NVDEV_SUBDEV_NR]       = 0,
  96 };
  97
  98 static int
  99 nouveau_devobj_ctor(struct nouveau_object *parent,
 100                     struct nouveau_object *engine,
 101                     struct nouveau_oclass *oclass, void *data, u32 size,
 102                     struct nouveau_object **pobject)
 103 {
 104         struct nouveau_client *client = nv_client(parent);
 105         struct nouveau_device *device;
 106         struct nouveau_devobj *devobj;
 107         struct nv_device_class *args = data;
 108         u32 boot0, strap;
 109         u64 disable, mmio_base, mmio_size;
 110         void __iomem *map;
 111         int ret, i, c;
 112
 113         if (size < sizeof(struct nv_device_class))
 114                 return -EINVAL;
 115
 116         /* find the device subdev that matches what the client requested */
 117         device = nv_device(client->device);
 118         if (args->device != ~0) {
 119                 device = nouveau_device_find(args->device);
 120                 if (!device)
 121                         return -ENODEV;
 122         }
 123
 124         ret = nouveau_parent_create(parent, nv_object(device), oclass, 0,
 125                                     nouveau_control_oclass,
 126                                     (1ULL << NVDEV_ENGINE_DMAOBJ) |
 127                                     (1ULL << NVDEV_ENGINE_FIFO) |
 128                                     (1ULL << NVDEV_ENGINE_DISP) |
 129                                     (1ULL << NVDEV_ENGINE_PERFMON), &devobj);
 130         *pobject = nv_object(devobj);
 131         if (ret)
 132                 return ret;
 133
 134         mmio_base = pci_resource_start(device->pdev, 0);
 135         mmio_size = pci_resource_len(device->pdev, 0);
 136
 137         /* translate api disable mask into internal mapping */
 138         disable = args->debug0;
 139         for (i = 0; i < NVDEV_SUBDEV_NR; i++) {
 140                 if (args->disable & disable_map[i])
 141                         disable |= (1ULL << i);
 142         }
 143
 144         /* identify the chipset, and determine classes of subdev/engines */
 145         if (!(args->disable & NV_DEVICE_DISABLE_IDENTIFY) &&
 146             !device->card_type) {
 147                 map = ioremap(mmio_base, 0x102000);
 148                 if (map == NULL)
 149                         return -ENOMEM;
 150
 151                 /* switch mmio to cpu's native endianness */
 152 #ifndef __BIG_ENDIAN
 153                 if (ioread32_native(map + 0x000004) != 0x00000000)
 154 #else
 155                 if (ioread32_native(map + 0x000004) == 0x00000000)
 156 #endif
 157                         iowrite32_native(0x01000001, map + 0x000004);
 158
 159                 /* read boot0 and strapping information */
 160                 boot0 = ioread32_native(map + 0x000000);
 161                 strap = ioread32_native(map + 0x101000);
 162                 iounmap(map);
 163
 164                 /* determine chipset and derive architecture from it */
 165                 if ((boot0 & 0x1f000000) > 0) {
 166                         device->chipset = (boot0 & 0x1ff00000) >> 20;
 167                         switch (device->chipset & 0x1f0) {
 168                         case 0x010: {
 169                                 if (0x461 & (1 << (device->chipset & 0xf)))
 170                                         device->card_type = NV_10;
 171                                 else
 172                                         device->card_type = NV_11;
 173                                 break;
 174                         }
 175                         case 0x020: device->card_type = NV_20; break;
 176                         case 0x030: device->card_type = NV_30; break;
 177                         case 0x040:
 178                         case 0x060: device->card_type = NV_40; break;
 179                         case 0x050:
 180                         case 0x080:
 181                         case 0x090:
 182                         case 0x0a0: device->card_type = NV_50; break;
 183                         case 0x0c0: device->card_type = NV_C0; break;
 184                         case 0x0d0: device->card_type = NV_D0; break;
 185                         case 0x0e0:
 186                         case 0x0f0:
 187                         case 0x100: device->card_type = NV_E0; break;
 188                         default:
 189                                 break;
 190                         }
 191                 } else
 192                 if ((boot0 & 0xff00fff0) == 0x20004000) {
 193                         if (boot0 & 0x00f00000)
 194                                 device->chipset = 0x05;
 195                         else
 196                                 device->chipset = 0x04;
 197                         device->card_type = NV_04;
 198                 }
 199
 200                 switch (device->card_type) {
 201                 case NV_04: ret = nv04_identify(device); break;
 202                 case NV_10:
 203                 case NV_11: ret = nv10_identify(device); break;
 204                 case NV_20: ret = nv20_identify(device); break;
 205                 case NV_30: ret = nv30_identify(device); break;
 206                 case NV_40: ret = nv40_identify(device); break;
 207                 case NV_50: ret = nv50_identify(device); break;
 208                 case NV_C0:
 209                 case NV_D0: ret = nvc0_identify(device); break;
 210                 case NV_E0: ret = nve0_identify(device); break;
 211                 default:
 212                         ret = -EINVAL;
 213                         break;
 214                 }
 215
 216                 if (ret) {
 217                         nv_error(device, "unknown chipset, 0x%08x\n", boot0);
 218                         return ret;
 219                 }
 220
 221                 nv_info(device, "BOOT0  : 0x%08x\n", boot0);
 222                 nv_info(device, "Chipset: %s (NV%02X)\n",
 223                         device->cname, device->chipset);
 224                 nv_info(device, "Family : NV%02X\n", device->card_type);
 225
 226                 /* determine frequency of timing crystal */
 227                 if ( device->card_type <= NV_10 || device->chipset < 0x17 ||
 228                     (device->chipset >= 0x20 && device->chipset < 0x25))
 229                         strap &= 0x00000040;
 230                 else
 231                         strap &= 0x00400040;
 232
 233                 switch (strap) {
 234                 case 0x00000000: device->crystal = 13500; break;
 235                 case 0x00000040: device->crystal = 14318; break;
 236                 case 0x00400000: device->crystal = 27000; break;
 237                 case 0x00400040: device->crystal = 25000; break;
 238                 }
 239
 240                 nv_debug(device, "crystal freq: %dKHz\n", device->crystal);
 241         }
 242
 243         if (!(args->disable & NV_DEVICE_DISABLE_MMIO) &&
 244             !nv_subdev(device)->mmio) {
 245                 nv_subdev(device)->mmio  = ioremap(mmio_base, mmio_size);
 246                 if (!nv_subdev(device)->mmio) {
 247                         nv_error(device, "unable to map device registers\n");
 248                         return -ENOMEM;
 249                 }
 250         }
 251
 252         /* ensure requested subsystems are available for use */
 253         for (i = 1, c = 1; i < NVDEV_SUBDEV_NR; i++) {
 254                 if (!(oclass = device->oclass[i]) || (disable & (1ULL << i)))
 255                         continue;
 256
 257                 if (device->subdev[i]) {
 258                         nouveau_object_ref(device->subdev[i],
 259                                           &devobj->subdev[i]);
 260                         continue;
 261                 }
 262
 263                 ret = nouveau_object_ctor(nv_object(device), NULL,
 264                                           oclass, NULL, i,
 265                                           &devobj->subdev[i]);
 266                 if (ret == -ENODEV)
 267                         continue;
 268                 if (ret)
 269                         return ret;
 270
 271                 device->subdev[i] = devobj->subdev[i];
 272
 273                 /* note: can't init *any* subdevs until devinit has been run
 274                  * due to not knowing exactly what the vbios init tables will
 275                  * mess with.  devinit also can't be run until all of its
 276                  * dependencies have been created.
 277                  *
 278                  * this code delays init of any subdev until all of devinit's
 279                  * dependencies have been created, and then initialises each
 280                  * subdev in turn as they're created.
 281                  */
 282                 while (i >= NVDEV_SUBDEV_DEVINIT_LAST && c <= i) {
 283                         struct nouveau_object *subdev = devobj->subdev[c++];
 284                         if (subdev && !nv_iclass(subdev, NV_ENGINE_CLASS)) {
 285                                 ret = nouveau_object_inc(subdev);
 286                                 if (ret)
 287                                         return ret;
 288                                 atomic_dec(&nv_object(device)->usecount);
 289                         } else
 290                         if (subdev) {
 291                                 nouveau_subdev_reset(subdev);
 292                         }
 293                 }
 294         }
 295
 296         return 0;
 297 }
 298
 299 static void
 300 nouveau_devobj_dtor(struct nouveau_object *object)
 301 {
 302         struct nouveau_devobj *devobj = (void *)object;
 303         int i;
 304
 305         for (i = NVDEV_SUBDEV_NR - 1; i >= 0; i--)
 306                 nouveau_object_ref(NULL, &devobj->subdev[i]);
 307
 308         nouveau_parent_destroy(&devobj->base);
 309 }
 310
 311 static u8
 312 nouveau_devobj_rd08(struct nouveau_object *object, u64 addr)
 313 {
 314         return nv_rd08(object->engine, addr);
 315 }
 316
 317 static u16
 318 nouveau_devobj_rd16(struct nouveau_object *object, u64 addr)
 319 {
 320         return nv_rd16(object->engine, addr);
 321 }
 322
 323 static u32
 324 nouveau_devobj_rd32(struct nouveau_object *object, u64 addr)
 325 {
 326         return nv_rd32(object->engine, addr);
 327 }
 328
 329 static void
 330 nouveau_devobj_wr08(struct nouveau_object *object, u64 addr, u8 data)
 331 {
 332         nv_wr08(object->engine, addr, data);
 333 }
 334
 335 static void
 336 nouveau_devobj_wr16(struct nouveau_object *object, u64 addr, u16 data)
 337 {
 338         nv_wr16(object->engine, addr, data);
 339 }
 340
 341 static void
 342 nouveau_devobj_wr32(struct nouveau_object *object, u64 addr, u32 data)
 343 {
 344         nv_wr32(object->engine, addr, data);
 345 }
 346
 347 static struct nouveau_ofuncs
 348 nouveau_devobj_ofuncs = {
 349         .ctor = nouveau_devobj_ctor,
 350         .dtor = nouveau_devobj_dtor,
 351         .init = _nouveau_parent_init,
 352         .fini = _nouveau_parent_fini,
 353         .rd08 = nouveau_devobj_rd08,
 354         .rd16 = nouveau_devobj_rd16,
 355         .rd32 = nouveau_devobj_rd32,
 356         .wr08 = nouveau_devobj_wr08,
 357         .wr16 = nouveau_devobj_wr16,
 358         .wr32 = nouveau_devobj_wr32,
 359 };
 360
 361 /******************************************************************************
 362  * nouveau_device: engine functions
 363  *****************************************************************************/
 364 static struct nouveau_oclass
 365 nouveau_device_sclass[] = {
 366         { 0x0080, &nouveau_devobj_ofuncs },
 367         {}
 368 };
 369
 370 static int
 371 nouveau_device_fini(struct nouveau_object *object, bool suspend)
 372 {
 373         struct nouveau_device *device = (void *)object;
 374         struct nouveau_object *subdev;
 375         int ret, i;
 376
 377         for (i = NVDEV_SUBDEV_NR - 1; i >= 0; i--) {
 378                 if ((subdev = device->subdev[i])) {
 379                         if (!nv_iclass(subdev, NV_ENGINE_CLASS)) {
 380                                 ret = nouveau_object_dec(subdev, suspend);
 381                                 if (ret && suspend)
 382                                         goto fail;
 383                         }
 384                 }
 385         }
 386
 387         ret = 0;
 388 fail:
 389         for (; ret && i < NVDEV_SUBDEV_NR; i++) {
 390                 if ((subdev = device->subdev[i])) {
 391                         if (!nv_iclass(subdev, NV_ENGINE_CLASS)) {
 392                                 ret = nouveau_object_inc(subdev);
 393                                 if (ret) {
 394                                         /* XXX */
 395                                 }
 396                         }
 397                 }
 398         }
 399
 400         return ret;
 401 }
 402
 403 static int
 404 nouveau_device_init(struct nouveau_object *object)
 405 {
 406         struct nouveau_device *device = (void *)object;
 407         struct nouveau_object *subdev;
 408         int ret, i;
 409
 410         for (i = 0; i < NVDEV_SUBDEV_NR; i++) {
 411                 if ((subdev = device->subdev[i])) {
 412                         if (!nv_iclass(subdev, NV_ENGINE_CLASS)) {
 413                                 ret = nouveau_object_inc(subdev);
 414                                 if (ret)
 415                                         goto fail;
 416                         } else {
 417                                 nouveau_subdev_reset(subdev);
 418                         }
 419                 }
 420         }
 421
 422         ret = 0;
 423 fail:
 424         for (--i; ret && i >= 0; i--) {
 425                 if ((subdev = device->subdev[i])) {
 426                         if (!nv_iclass(subdev, NV_ENGINE_CLASS))
 427                                 nouveau_object_dec(subdev, false);
 428                 }
 429         }
 430
 431         return ret;
 432 }
 433
 434 static void
 435 nouveau_device_dtor(struct nouveau_object *object)
 436 {
 437         struct nouveau_device *device = (void *)object;
 438
 439         mutex_lock(&nv_devices_mutex);
 440         list_del(&device->head);
 441         mutex_unlock(&nv_devices_mutex);
 442
 443         if (nv_subdev(device)->mmio)
 444                 iounmap(nv_subdev(device)->mmio);
 445
 446         nouveau_engine_destroy(&device->base);
 447 }
 448
 449 static struct nouveau_oclass
 450 nouveau_device_oclass = {
 451         .handle = NV_ENGINE(DEVICE, 0x00),
 452         .ofuncs = &(struct nouveau_ofuncs) {
 453                 .dtor = nouveau_device_dtor,
 454                 .init = nouveau_device_init,
 455                 .fini = nouveau_device_fini,
 456         },
 457 };
 458
 459 int
 460 nouveau_device_create_(struct pci_dev *pdev, u64 name, const char *sname,
 461                        const char *cfg, const char *dbg,
 462                        int length, void **pobject)
 463 {
 464         struct nouveau_device *device;
 465         int ret = -EEXIST;
 466
 467         mutex_lock(&nv_devices_mutex);
 468         list_for_each_entry(device, &nv_devices, head) {
 469                 if (device->handle == name)
 470                         goto done;
 471         }
 472
 473         ret = nouveau_engine_create_(NULL, NULL, &nouveau_device_oclass, true,
 474                                      "DEVICE", "device", length, pobject);
 475         device = *pobject;
 476         if (ret)
 477                 goto done;
 478
 479         device->pdev = pdev;
 480         device->handle = name;
 481         device->cfgopt = cfg;
 482         device->dbgopt = dbg;
 483         device->name = sname;
 484
 485         nv_subdev(device)->debug = nouveau_dbgopt(device->dbgopt, "DEVICE");
 486         nv_engine(device)->sclass = nouveau_device_sclass;
 487         list_add(&device->head, &nv_devices);
 488 done:
 489         mutex_unlock(&nv_devices_mutex);
 490         return ret;
 491 }