drivers/gpu/drm/nouveau/nvkm/engine/device/user.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 #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_devidx subidx;
  47
  48         switch (mthd & NV_DEVICE_INFO_UNIT) {
  49         case NV_DEVICE_FIFO(0): subidx = NVKM_ENGINE_FIFO; break;
  50         default:
  51                 return -EINVAL;
  52         }
  53
  54         subdev = nvkm_device_subdev(device, subidx);
  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
  70         switch (args->mthd) {
  71 #define ENGINE__(A,B,C) NV_DEVICE_INFO_ENGINE_##A: { int _i;                   \
  72         for (_i = (B), args->data = 0ULL; _i <= (C); _i++) {                   \
  73                 if (nvkm_device_engine(device, _i))                            \
  74                         args->data |= BIT_ULL(_i);                             \
  75         }                                                                      \
  76 }
  77 #define ENGINE_A(A) ENGINE__(A, NVKM_ENGINE_##A   , NVKM_ENGINE_##A)
  78 #define ENGINE_B(A) ENGINE__(A, NVKM_ENGINE_##A##0, NVKM_ENGINE_##A##_LAST)
  79         case ENGINE_A(SW    ); break;
  80         case ENGINE_A(GR    ); break;
  81         case ENGINE_A(MPEG  ); break;
  82         case ENGINE_A(ME    ); break;
  83         case ENGINE_A(CIPHER); break;
  84         case ENGINE_A(BSP   ); break;
  85         case ENGINE_A(VP    ); break;
  86         case ENGINE_B(CE    ); break;
  87         case ENGINE_A(SEC   ); break;
  88         case ENGINE_A(MSVLD ); break;
  89         case ENGINE_A(MSPDEC); break;
  90         case ENGINE_A(MSPPP ); break;
  91         case ENGINE_A(MSENC ); break;
  92         case ENGINE_A(VIC   ); break;
  93         case ENGINE_A(SEC2  ); break;
  94         case ENGINE_A(NVDEC ); break;
  95         case ENGINE_B(NVENC ); break;
  96         default:
  97                 args->mthd = NV_DEVICE_INFO_INVALID;
  98                 break;
  99         }
 100 }
 101
 102 static int
 103 nvkm_udevice_info(struct nvkm_udevice *udev, void *data, u32 size)
 104 {
 105         struct nvkm_object *object = &udev->object;
 106         struct nvkm_device *device = udev->device;
 107         struct nvkm_fb *fb = device->fb;
 108         struct nvkm_instmem *imem = device->imem;
 109         union {
 110                 struct nv_device_info_v0 v0;
 111                 struct nv_device_info_v1 v1;
 112         } *args = data;
 113         int ret = -ENOSYS, i;
 114
 115         nvif_ioctl(object, "device info size %d\n", size);
 116         if (!(ret = nvif_unpack(ret, &data, &size, args->v1, 1, 1, true))) {
 117                 nvif_ioctl(object, "device info vers %d count %d\n",
 118                            args->v1.version, args->v1.count);
 119                 if (args->v1.count * sizeof(args->v1.data[0]) == size) {
 120                         for (i = 0; i < args->v1.count; i++)
 121                                 nvkm_udevice_info_v1(device, &args->v1.data[i]);
 122                         return 0;
 123                 }
 124                 return -EINVAL;
 125         } else
 126         if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
 127                 nvif_ioctl(object, "device info vers %d\n", args->v0.version);
 128         } else
 129                 return ret;
 130
 131         switch (device->chipset) {
 132         case 0x01a:
 133         case 0x01f:
 134         case 0x04c:
 135         case 0x04e:
 136         case 0x063:
 137         case 0x067:
 138         case 0x068:
 139         case 0x0aa:
 140         case 0x0ac:
 141         case 0x0af:
 142                 args->v0.platform = NV_DEVICE_INFO_V0_IGP;
 143                 break;
 144         default:
 145                 switch (device->type) {
 146                 case NVKM_DEVICE_PCI:
 147                         args->v0.platform = NV_DEVICE_INFO_V0_PCI;
 148                         break;
 149                 case NVKM_DEVICE_AGP:
 150                         args->v0.platform = NV_DEVICE_INFO_V0_AGP;
 151                         break;
 152                 case NVKM_DEVICE_PCIE:
 153                         args->v0.platform = NV_DEVICE_INFO_V0_PCIE;
 154                         break;
 155                 case NVKM_DEVICE_TEGRA:
 156                         args->v0.platform = NV_DEVICE_INFO_V0_SOC;
 157                         break;
 158                 default:
 159                         WARN_ON(1);
 160                         break;
 161                 }
 162                 break;
 163         }
 164
 165         switch (device->card_type) {
 166         case NV_04: args->v0.family = NV_DEVICE_INFO_V0_TNT; break;
 167         case NV_10:
 168         case NV_11: args->v0.family = NV_DEVICE_INFO_V0_CELSIUS; break;
 169         case NV_20: args->v0.family = NV_DEVICE_INFO_V0_KELVIN; break;
 170         case NV_30: args->v0.family = NV_DEVICE_INFO_V0_RANKINE; break;
 171         case NV_40: args->v0.family = NV_DEVICE_INFO_V0_CURIE; break;
 172         case NV_50: args->v0.family = NV_DEVICE_INFO_V0_TESLA; break;
 173         case NV_C0: args->v0.family = NV_DEVICE_INFO_V0_FERMI; break;
 174         case NV_E0: args->v0.family = NV_DEVICE_INFO_V0_KEPLER; break;
 175         case GM100: args->v0.family = NV_DEVICE_INFO_V0_MAXWELL; break;
 176         case GP100: args->v0.family = NV_DEVICE_INFO_V0_PASCAL; break;
 177         case GV100: args->v0.family = NV_DEVICE_INFO_V0_VOLTA; break;
 178         default:
 179                 args->v0.family = 0;
 180                 break;
 181         }
 182
 183         args->v0.chipset  = device->chipset;
 184         args->v0.revision = device->chiprev;
 185         if (fb && fb->ram)
 186                 args->v0.ram_size = args->v0.ram_user = fb->ram->size;
 187         else
 188                 args->v0.ram_size = args->v0.ram_user = 0;
 189         if (imem && args->v0.ram_size > 0)
 190                 args->v0.ram_user = args->v0.ram_user - imem->reserved;
 191
 192         strncpy(args->v0.chip, device->chip->name, sizeof(args->v0.chip));
 193         strncpy(args->v0.name, device->name, sizeof(args->v0.name));
 194         return 0;
 195 }
 196
 197 static int
 198 nvkm_udevice_time(struct nvkm_udevice *udev, void *data, u32 size)
 199 {
 200         struct nvkm_object *object = &udev->object;
 201         struct nvkm_device *device = udev->device;
 202         union {
 203                 struct nv_device_time_v0 v0;
 204         } *args = data;
 205         int ret = -ENOSYS;
 206
 207         nvif_ioctl(object, "device time size %d\n", size);
 208         if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
 209                 nvif_ioctl(object, "device time vers %d\n", args->v0.version);
 210                 args->v0.time = nvkm_timer_read(device->timer);
 211         }
 212
 213         return ret;
 214 }
 215
 216 static int
 217 nvkm_udevice_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
 218 {
 219         struct nvkm_udevice *udev = nvkm_udevice(object);
 220         nvif_ioctl(object, "device mthd %08x\n", mthd);
 221         switch (mthd) {
 222         case NV_DEVICE_V0_INFO:
 223                 return nvkm_udevice_info(udev, data, size);
 224         case NV_DEVICE_V0_TIME:
 225                 return nvkm_udevice_time(udev, data, size);
 226         default:
 227                 break;
 228         }
 229         return -EINVAL;
 230 }
 231
 232 static int
 233 nvkm_udevice_rd08(struct nvkm_object *object, u64 addr, u8 *data)
 234 {
 235         struct nvkm_udevice *udev = nvkm_udevice(object);
 236         *data = nvkm_rd08(udev->device, addr);
 237         return 0;
 238 }
 239
 240 static int
 241 nvkm_udevice_rd16(struct nvkm_object *object, u64 addr, u16 *data)
 242 {
 243         struct nvkm_udevice *udev = nvkm_udevice(object);
 244         *data = nvkm_rd16(udev->device, addr);
 245         return 0;
 246 }
 247
 248 static int
 249 nvkm_udevice_rd32(struct nvkm_object *object, u64 addr, u32 *data)
 250 {
 251         struct nvkm_udevice *udev = nvkm_udevice(object);
 252         *data = nvkm_rd32(udev->device, addr);
 253         return 0;
 254 }
 255
 256 static int
 257 nvkm_udevice_wr08(struct nvkm_object *object, u64 addr, u8 data)
 258 {
 259         struct nvkm_udevice *udev = nvkm_udevice(object);
 260         nvkm_wr08(udev->device, addr, data);
 261         return 0;
 262 }
 263
 264 static int
 265 nvkm_udevice_wr16(struct nvkm_object *object, u64 addr, u16 data)
 266 {
 267         struct nvkm_udevice *udev = nvkm_udevice(object);
 268         nvkm_wr16(udev->device, addr, data);
 269         return 0;
 270 }
 271
 272 static int
 273 nvkm_udevice_wr32(struct nvkm_object *object, u64 addr, u32 data)
 274 {
 275         struct nvkm_udevice *udev = nvkm_udevice(object);
 276         nvkm_wr32(udev->device, addr, data);
 277         return 0;
 278 }
 279
 280 static int
 281 nvkm_udevice_map(struct nvkm_object *object, void *argv, u32 argc,
 282                  enum nvkm_object_map *type, u64 *addr, u64 *size)
 283 {
 284         struct nvkm_udevice *udev = nvkm_udevice(object);
 285         struct nvkm_device *device = udev->device;
 286         *type = NVKM_OBJECT_MAP_IO;
 287         *addr = device->func->resource_addr(device, 0);
 288         *size = device->func->resource_size(device, 0);
 289         return 0;
 290 }
 291
 292 static int
 293 nvkm_udevice_fini(struct nvkm_object *object, bool suspend)
 294 {
 295         struct nvkm_udevice *udev = nvkm_udevice(object);
 296         struct nvkm_device *device = udev->device;
 297         int ret = 0;
 298
 299         mutex_lock(&device->mutex);
 300         if (!--device->refcount) {
 301                 ret = nvkm_device_fini(device, suspend);
 302                 if (ret && suspend) {
 303                         device->refcount++;
 304                         goto done;
 305                 }
 306         }
 307
 308 done:
 309         mutex_unlock(&device->mutex);
 310         return ret;
 311 }
 312
 313 static int
 314 nvkm_udevice_init(struct nvkm_object *object)
 315 {
 316         struct nvkm_udevice *udev = nvkm_udevice(object);
 317         struct nvkm_device *device = udev->device;
 318         int ret = 0;
 319
 320         mutex_lock(&device->mutex);
 321         if (!device->refcount++) {
 322                 ret = nvkm_device_init(device);
 323                 if (ret) {
 324                         device->refcount--;
 325                         goto done;
 326                 }
 327         }
 328
 329 done:
 330         mutex_unlock(&device->mutex);
 331         return ret;
 332 }
 333
 334 static int
 335 nvkm_udevice_child_new(const struct nvkm_oclass *oclass,
 336                        void *data, u32 size, struct nvkm_object **pobject)
 337 {
 338         struct nvkm_udevice *udev = nvkm_udevice(oclass->parent);
 339         const struct nvkm_device_oclass *sclass = oclass->priv;
 340         return sclass->ctor(udev->device, oclass, data, size, pobject);
 341 }
 342
 343 static int
 344 nvkm_udevice_child_get(struct nvkm_object *object, int index,
 345                        struct nvkm_oclass *oclass)
 346 {
 347         struct nvkm_udevice *udev = nvkm_udevice(object);
 348         struct nvkm_device *device = udev->device;
 349         struct nvkm_engine *engine;
 350         u64 mask = (1ULL << NVKM_ENGINE_DMAOBJ) |
 351                    (1ULL << NVKM_ENGINE_FIFO) |
 352                    (1ULL << NVKM_ENGINE_DISP) |
 353                    (1ULL << NVKM_ENGINE_PM);
 354         const struct nvkm_device_oclass *sclass = NULL;
 355         int i;
 356
 357         for (; i = __ffs64(mask), mask && !sclass; mask &= ~(1ULL << i)) {
 358                 if (!(engine = nvkm_device_engine(device, i)) ||
 359                     !(engine->func->base.sclass))
 360                         continue;
 361                 oclass->engine = engine;
 362
 363                 index -= engine->func->base.sclass(oclass, index, &sclass);
 364         }
 365
 366         if (!sclass) {
 367                 switch (index) {
 368                 case 0: sclass = &nvkm_control_oclass; break;
 369                 case 1:
 370                         if (!device->mmu)
 371                                 return -EINVAL;
 372                         sclass = &device->mmu->user;
 373                         break;
 374                 default:
 375                         return -EINVAL;
 376                 }
 377                 oclass->base = sclass->base;
 378         }
 379
 380         oclass->ctor = nvkm_udevice_child_new;
 381         oclass->priv = sclass;
 382         return 0;
 383 }
 384
 385 static const struct nvkm_object_func
 386 nvkm_udevice_super = {
 387         .init = nvkm_udevice_init,
 388         .fini = nvkm_udevice_fini,
 389         .mthd = nvkm_udevice_mthd,
 390         .map = nvkm_udevice_map,
 391         .rd08 = nvkm_udevice_rd08,
 392         .rd16 = nvkm_udevice_rd16,
 393         .rd32 = nvkm_udevice_rd32,
 394         .wr08 = nvkm_udevice_wr08,
 395         .wr16 = nvkm_udevice_wr16,
 396         .wr32 = nvkm_udevice_wr32,
 397         .sclass = nvkm_udevice_child_get,
 398 };
 399
 400 static const struct nvkm_object_func
 401 nvkm_udevice = {
 402         .init = nvkm_udevice_init,
 403         .fini = nvkm_udevice_fini,
 404         .mthd = nvkm_udevice_mthd,
 405         .sclass = nvkm_udevice_child_get,
 406 };
 407
 408 static int
 409 nvkm_udevice_new(const struct nvkm_oclass *oclass, void *data, u32 size,
 410                  struct nvkm_object **pobject)
 411 {
 412         union {
 413                 struct nv_device_v0 v0;
 414         } *args = data;
 415         struct nvkm_client *client = oclass->client;
 416         struct nvkm_object *parent = &client->object;
 417         const struct nvkm_object_func *func;
 418         struct nvkm_udevice *udev;
 419         int ret = -ENOSYS;
 420
 421         nvif_ioctl(parent, "create device size %d\n", size);
 422         if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
 423                 nvif_ioctl(parent, "create device v%d device %016llx\n",
 424                            args->v0.version, args->v0.device);
 425         } else
 426                 return ret;
 427
 428         /* give priviledged clients register access */
 429         if (client->super)
 430                 func = &nvkm_udevice_super;
 431         else
 432                 func = &nvkm_udevice;
 433
 434         if (!(udev = kzalloc(sizeof(*udev), GFP_KERNEL)))
 435                 return -ENOMEM;
 436         nvkm_object_ctor(func, oclass, &udev->object);
 437         *pobject = &udev->object;
 438
 439         /* find the device that matches what the client requested */
 440         if (args->v0.device != ~0)
 441                 udev->device = nvkm_device_find(args->v0.device);
 442         else
 443                 udev->device = nvkm_device_find(client->device);
 444         if (!udev->device)
 445                 return -ENODEV;
 446
 447         return 0;
 448 }
 449
 450 const struct nvkm_sclass
 451 nvkm_udevice_sclass = {
 452         .oclass = NV_DEVICE,
 453         .minver = 0,
 454         .maxver = 0,
 455         .ctor = nvkm_udevice_new,
 456 };