drivers/gpu/drm/radeon/radeon_uvd.c

   1 /*
   2  * Copyright 2011 Advanced Micro Devices, Inc.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sub license, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  16  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  17  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  18  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  19  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  20  *
  21  * The above copyright notice and this permission notice (including the
  22  * next paragraph) shall be included in all copies or substantial portions
  23  * of the Software.
  24  *
  25  */
  26 /*
  27  * Authors:
  28  *    Christian König <deathsimple@vodafone.de>
  29  */
  30
  31 #include <linux/firmware.h>
  32 #include <linux/module.h>
  33 #include <drm/drmP.h>
  34 #include <drm/drm.h>
  35
  36 #include "radeon.h"
  37 #include "r600d.h"
  38
  39 /* 1 second timeout */
  40 #define UVD_IDLE_TIMEOUT_MS     1000
  41
  42 /* Firmware Names */
  43 #define FIRMWARE_RV710          "radeon/RV710_uvd.bin"
  44 #define FIRMWARE_CYPRESS        "radeon/CYPRESS_uvd.bin"
  45 #define FIRMWARE_SUMO           "radeon/SUMO_uvd.bin"
  46 #define FIRMWARE_TAHITI         "radeon/TAHITI_uvd.bin"
  47 #define FIRMWARE_BONAIRE        "radeon/BONAIRE_uvd.bin"
  48
  49 MODULE_FIRMWARE(FIRMWARE_RV710);
  50 MODULE_FIRMWARE(FIRMWARE_CYPRESS);
  51 MODULE_FIRMWARE(FIRMWARE_SUMO);
  52 MODULE_FIRMWARE(FIRMWARE_TAHITI);
  53 MODULE_FIRMWARE(FIRMWARE_BONAIRE);
  54
  55 static void radeon_uvd_idle_work_handler(struct work_struct *work);
  56
  57 int radeon_uvd_init(struct radeon_device *rdev)
  58 {
  59         struct platform_device *pdev;
  60         unsigned long bo_size;
  61         const char *fw_name;
  62         int i, r;
  63
  64         INIT_DELAYED_WORK(&rdev->uvd.idle_work, radeon_uvd_idle_work_handler);
  65
  66         pdev = platform_device_register_simple("radeon_uvd", 0, NULL, 0);
  67         r = IS_ERR(pdev);
  68         if (r) {
  69                 dev_err(rdev->dev, "radeon_uvd: Failed to register firmware\n");
  70                 return -EINVAL;
  71         }
  72
  73         switch (rdev->family) {
  74         case CHIP_RV710:
  75         case CHIP_RV730:
  76         case CHIP_RV740:
  77                 fw_name = FIRMWARE_RV710;
  78                 break;
  79
  80         case CHIP_CYPRESS:
  81         case CHIP_HEMLOCK:
  82         case CHIP_JUNIPER:
  83         case CHIP_REDWOOD:
  84         case CHIP_CEDAR:
  85                 fw_name = FIRMWARE_CYPRESS;
  86                 break;
  87
  88         case CHIP_SUMO:
  89         case CHIP_SUMO2:
  90         case CHIP_PALM:
  91         case CHIP_CAYMAN:
  92         case CHIP_BARTS:
  93         case CHIP_TURKS:
  94         case CHIP_CAICOS:
  95                 fw_name = FIRMWARE_SUMO;
  96                 break;
  97
  98         case CHIP_TAHITI:
  99         case CHIP_VERDE:
 100         case CHIP_PITCAIRN:
 101         case CHIP_ARUBA:
 102                 fw_name = FIRMWARE_TAHITI;
 103                 break;
 104
 105         case CHIP_BONAIRE:
 106         case CHIP_KABINI:
 107         case CHIP_KAVERI:
 108                 fw_name = FIRMWARE_BONAIRE;
 109                 break;
 110
 111         default:
 112                 return -EINVAL;
 113         }
 114
 115         r = request_firmware(&rdev->uvd_fw, fw_name, &pdev->dev);
 116         if (r) {
 117                 dev_err(rdev->dev, "radeon_uvd: Can't load firmware \"%s\"\n",
 118                         fw_name);
 119                 platform_device_unregister(pdev);
 120                 return r;
 121         }
 122
 123         platform_device_unregister(pdev);
 124
 125         bo_size = RADEON_GPU_PAGE_ALIGN(rdev->uvd_fw->size + 8) +
 126                   RADEON_UVD_STACK_SIZE + RADEON_UVD_HEAP_SIZE;
 127         r = radeon_bo_create(rdev, bo_size, PAGE_SIZE, true,
 128                              RADEON_GEM_DOMAIN_VRAM, NULL, &rdev->uvd.vcpu_bo);
 129         if (r) {
 130                 dev_err(rdev->dev, "(%d) failed to allocate UVD bo\n", r);
 131                 return r;
 132         }
 133
 134         r = radeon_uvd_resume(rdev);
 135         if (r)
 136                 return r;
 137
 138         memset(rdev->uvd.cpu_addr, 0, bo_size);
 139         memcpy(rdev->uvd.cpu_addr, rdev->uvd_fw->data, rdev->uvd_fw->size);
 140
 141         r = radeon_uvd_suspend(rdev);
 142         if (r)
 143                 return r;
 144
 145         for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
 146                 atomic_set(&rdev->uvd.handles[i], 0);
 147                 rdev->uvd.filp[i] = NULL;
 148         }
 149
 150         return 0;
 151 }
 152
 153 void radeon_uvd_fini(struct radeon_device *rdev)
 154 {
 155         radeon_uvd_suspend(rdev);
 156         radeon_bo_unref(&rdev->uvd.vcpu_bo);
 157 }
 158
 159 int radeon_uvd_suspend(struct radeon_device *rdev)
 160 {
 161         int r;
 162
 163         if (rdev->uvd.vcpu_bo == NULL)
 164                 return 0;
 165
 166         r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
 167         if (!r) {
 168                 radeon_bo_kunmap(rdev->uvd.vcpu_bo);
 169                 radeon_bo_unpin(rdev->uvd.vcpu_bo);
 170                 rdev->uvd.cpu_addr = NULL;
 171                 if (!radeon_bo_pin(rdev->uvd.vcpu_bo, RADEON_GEM_DOMAIN_CPU, NULL)) {
 172                         radeon_bo_kmap(rdev->uvd.vcpu_bo, &rdev->uvd.cpu_addr);
 173                 }
 174                 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 175
 176                 if (rdev->uvd.cpu_addr) {
 177                         radeon_fence_driver_start_ring(rdev, R600_RING_TYPE_UVD_INDEX);
 178                 } else {
 179                         rdev->fence_drv[R600_RING_TYPE_UVD_INDEX].cpu_addr = NULL;
 180                 }
 181         }
 182         return r;
 183 }
 184
 185 int radeon_uvd_resume(struct radeon_device *rdev)
 186 {
 187         int r;
 188
 189         if (rdev->uvd.vcpu_bo == NULL)
 190                 return -EINVAL;
 191
 192         r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
 193         if (r) {
 194                 radeon_bo_unref(&rdev->uvd.vcpu_bo);
 195                 dev_err(rdev->dev, "(%d) failed to reserve UVD bo\n", r);
 196                 return r;
 197         }
 198
 199         /* Have been pin in cpu unmap unpin */
 200         radeon_bo_kunmap(rdev->uvd.vcpu_bo);
 201         radeon_bo_unpin(rdev->uvd.vcpu_bo);
 202
 203         r = radeon_bo_pin(rdev->uvd.vcpu_bo, RADEON_GEM_DOMAIN_VRAM,
 204                           &rdev->uvd.gpu_addr);
 205         if (r) {
 206                 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 207                 radeon_bo_unref(&rdev->uvd.vcpu_bo);
 208                 dev_err(rdev->dev, "(%d) UVD bo pin failed\n", r);
 209                 return r;
 210         }
 211
 212         r = radeon_bo_kmap(rdev->uvd.vcpu_bo, &rdev->uvd.cpu_addr);
 213         if (r) {
 214                 dev_err(rdev->dev, "(%d) UVD map failed\n", r);
 215                 return r;
 216         }
 217
 218         radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 219
 220         return 0;
 221 }
 222
 223 void radeon_uvd_force_into_uvd_segment(struct radeon_bo *rbo)
 224 {
 225         rbo->placement.fpfn = 0 >> PAGE_SHIFT;
 226         rbo->placement.lpfn = (256 * 1024 * 1024) >> PAGE_SHIFT;
 227 }
 228
 229 void radeon_uvd_free_handles(struct radeon_device *rdev, struct drm_file *filp)
 230 {
 231         int i, r;
 232         for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
 233                 if (rdev->uvd.filp[i] == filp) {
 234                         uint32_t handle = atomic_read(&rdev->uvd.handles[i]);
 235                         struct radeon_fence *fence;
 236
 237                         r = radeon_uvd_get_destroy_msg(rdev,
 238                                 R600_RING_TYPE_UVD_INDEX, handle, &fence);
 239                         if (r) {
 240                                 DRM_ERROR("Error destroying UVD (%d)!\n", r);
 241                                 continue;
 242                         }
 243
 244                         radeon_fence_wait(fence, false);
 245                         radeon_fence_unref(&fence);
 246
 247                         rdev->uvd.filp[i] = NULL;
 248                         atomic_set(&rdev->uvd.handles[i], 0);
 249                 }
 250         }
 251 }
 252
 253 static int radeon_uvd_cs_msg_decode(uint32_t *msg, unsigned buf_sizes[])
 254 {
 255         unsigned stream_type = msg[4];
 256         unsigned width = msg[6];
 257         unsigned height = msg[7];
 258         unsigned dpb_size = msg[9];
 259         unsigned pitch = msg[28];
 260
 261         unsigned width_in_mb = width / 16;
 262         unsigned height_in_mb = ALIGN(height / 16, 2);
 263
 264         unsigned image_size, tmp, min_dpb_size;
 265
 266         image_size = width * height;
 267         image_size += image_size / 2;
 268         image_size = ALIGN(image_size, 1024);
 269
 270         switch (stream_type) {
 271         case 0: /* H264 */
 272
 273                 /* reference picture buffer */
 274                 min_dpb_size = image_size * 17;
 275
 276                 /* macroblock context buffer */
 277                 min_dpb_size += width_in_mb * height_in_mb * 17 * 192;
 278
 279                 /* IT surface buffer */
 280                 min_dpb_size += width_in_mb * height_in_mb * 32;
 281                 break;
 282
 283         case 1: /* VC1 */
 284
 285                 /* reference picture buffer */
 286                 min_dpb_size = image_size * 3;
 287
 288                 /* CONTEXT_BUFFER */
 289                 min_dpb_size += width_in_mb * height_in_mb * 128;
 290
 291                 /* IT surface buffer */
 292                 min_dpb_size += width_in_mb * 64;
 293
 294                 /* DB surface buffer */
 295                 min_dpb_size += width_in_mb * 128;
 296
 297                 /* BP */
 298                 tmp = max(width_in_mb, height_in_mb);
 299                 min_dpb_size += ALIGN(tmp * 7 * 16, 64);
 300                 break;
 301
 302         case 3: /* MPEG2 */
 303
 304                 /* reference picture buffer */
 305                 min_dpb_size = image_size * 3;
 306                 break;
 307
 308         case 4: /* MPEG4 */
 309
 310                 /* reference picture buffer */
 311                 min_dpb_size = image_size * 3;
 312
 313                 /* CM */
 314                 min_dpb_size += width_in_mb * height_in_mb * 64;
 315
 316                 /* IT surface buffer */
 317                 min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64);
 318                 break;
 319
 320         default:
 321                 DRM_ERROR("UVD codec not handled %d!\n", stream_type);
 322                 return -EINVAL;
 323         }
 324
 325         if (width > pitch) {
 326                 DRM_ERROR("Invalid UVD decoding target pitch!\n");
 327                 return -EINVAL;
 328         }
 329
 330         if (dpb_size < min_dpb_size) {
 331                 DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n",
 332                           dpb_size, min_dpb_size);
 333                 return -EINVAL;
 334         }
 335
 336         buf_sizes[0x1] = dpb_size;
 337         buf_sizes[0x2] = image_size;
 338         return 0;
 339 }
 340
 341 static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
 342                              unsigned offset, unsigned buf_sizes[])
 343 {
 344         int32_t *msg, msg_type, handle;
 345         void *ptr;
 346
 347         int i, r;
 348
 349         if (offset & 0x3F) {
 350                 DRM_ERROR("UVD messages must be 64 byte aligned!\n");
 351                 return -EINVAL;
 352         }
 353
 354         r = radeon_bo_kmap(bo, &ptr);
 355         if (r)
 356                 return r;
 357
 358         msg = ptr + offset;
 359
 360         msg_type = msg[1];
 361         handle = msg[2];
 362
 363         if (handle == 0) {
 364                 DRM_ERROR("Invalid UVD handle!\n");
 365                 return -EINVAL;
 366         }
 367
 368         if (msg_type == 1) {
 369                 /* it's a decode msg, calc buffer sizes */
 370                 r = radeon_uvd_cs_msg_decode(msg, buf_sizes);
 371                 radeon_bo_kunmap(bo);
 372                 if (r)
 373                         return r;
 374
 375         } else if (msg_type == 2) {
 376                 /* it's a destroy msg, free the handle */
 377                 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i)
 378                         atomic_cmpxchg(&p->rdev->uvd.handles[i], handle, 0);
 379                 radeon_bo_kunmap(bo);
 380                 return 0;
 381         } else {
 382                 /* it's a create msg, no special handling needed */
 383                 radeon_bo_kunmap(bo);
 384         }
 385
 386         /* create or decode, validate the handle */
 387         for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
 388                 if (atomic_read(&p->rdev->uvd.handles[i]) == handle)
 389                         return 0;
 390         }
 391
 392         /* handle not found try to alloc a new one */
 393         for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
 394                 if (!atomic_cmpxchg(&p->rdev->uvd.handles[i], 0, handle)) {
 395                         p->rdev->uvd.filp[i] = p->filp;
 396                         return 0;
 397                 }
 398         }
 399
 400         DRM_ERROR("No more free UVD handles!\n");
 401         return -EINVAL;
 402 }
 403
 404 static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p,
 405                                int data0, int data1,
 406                                unsigned buf_sizes[])
 407 {
 408         struct radeon_cs_chunk *relocs_chunk;
 409         struct radeon_cs_reloc *reloc;
 410         unsigned idx, cmd, offset;
 411         uint64_t start, end;
 412         int r;
 413
 414         relocs_chunk = &p->chunks[p->chunk_relocs_idx];
 415         offset = radeon_get_ib_value(p, data0);
 416         idx = radeon_get_ib_value(p, data1);
 417         if (idx >= relocs_chunk->length_dw) {
 418                 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
 419                           idx, relocs_chunk->length_dw);
 420                 return -EINVAL;
 421         }
 422
 423         reloc = p->relocs_ptr[(idx / 4)];
 424         start = reloc->lobj.gpu_offset;
 425         end = start + radeon_bo_size(reloc->robj);
 426         start += offset;
 427
 428         p->ib.ptr[data0] = start & 0xFFFFFFFF;
 429         p->ib.ptr[data1] = start >> 32;
 430
 431         cmd = radeon_get_ib_value(p, p->idx) >> 1;
 432
 433         if (cmd < 0x4) {
 434                 if ((end - start) < buf_sizes[cmd]) {
 435                         DRM_ERROR("buffer to small (%d / %d)!\n",
 436                                   (unsigned)(end - start), buf_sizes[cmd]);
 437                         return -EINVAL;
 438                 }
 439
 440         } else if (cmd != 0x100) {
 441                 DRM_ERROR("invalid UVD command %X!\n", cmd);
 442                 return -EINVAL;
 443         }
 444
 445         if ((start >> 28) != (end >> 28)) {
 446                 DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
 447                           start, end);
 448                 return -EINVAL;
 449         }
 450
 451         /* TODO: is this still necessary on NI+ ? */
 452         if ((cmd == 0 || cmd == 0x3) &&
 453             (start >> 28) != (p->rdev->uvd.gpu_addr >> 28)) {
 454                 DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n",
 455                           start, end);
 456                 return -EINVAL;
 457         }
 458
 459         if (cmd == 0) {
 460                 r = radeon_uvd_cs_msg(p, reloc->robj, offset, buf_sizes);
 461                 if (r)
 462                         return r;
 463         }
 464
 465         return 0;
 466 }
 467
 468 static int radeon_uvd_cs_reg(struct radeon_cs_parser *p,
 469                              struct radeon_cs_packet *pkt,
 470                              int *data0, int *data1,
 471                              unsigned buf_sizes[])
 472 {
 473         int i, r;
 474
 475         p->idx++;
 476         for (i = 0; i <= pkt->count; ++i) {
 477                 switch (pkt->reg + i*4) {
 478                 case UVD_GPCOM_VCPU_DATA0:
 479                         *data0 = p->idx;
 480                         break;
 481                 case UVD_GPCOM_VCPU_DATA1:
 482                         *data1 = p->idx;
 483                         break;
 484                 case UVD_GPCOM_VCPU_CMD:
 485                         r = radeon_uvd_cs_reloc(p, *data0, *data1, buf_sizes);
 486                         if (r)
 487                                 return r;
 488                         break;
 489                 case UVD_ENGINE_CNTL:
 490                         break;
 491                 default:
 492                         DRM_ERROR("Invalid reg 0x%X!\n",
 493                                   pkt->reg + i*4);
 494                         return -EINVAL;
 495                 }
 496                 p->idx++;
 497         }
 498         return 0;
 499 }
 500
 501 int radeon_uvd_cs_parse(struct radeon_cs_parser *p)
 502 {
 503         struct radeon_cs_packet pkt;
 504         int r, data0 = 0, data1 = 0;
 505
 506         /* minimum buffer sizes */
 507         unsigned buf_sizes[] = {
 508                 [0x00000000]    =       2048,
 509                 [0x00000001]    =       32 * 1024 * 1024,
 510                 [0x00000002]    =       2048 * 1152 * 3,
 511                 [0x00000003]    =       2048,
 512         };
 513
 514         if (p->chunks[p->chunk_ib_idx].length_dw % 16) {
 515                 DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n",
 516                           p->chunks[p->chunk_ib_idx].length_dw);
 517                 return -EINVAL;
 518         }
 519
 520         if (p->chunk_relocs_idx == -1) {
 521                 DRM_ERROR("No relocation chunk !\n");
 522                 return -EINVAL;
 523         }
 524
 525
 526         do {
 527                 r = radeon_cs_packet_parse(p, &pkt, p->idx);
 528                 if (r)
 529                         return r;
 530                 switch (pkt.type) {
 531                 case RADEON_PACKET_TYPE0:
 532                         r = radeon_uvd_cs_reg(p, &pkt, &data0,
 533                                               &data1, buf_sizes);
 534                         if (r)
 535                                 return r;
 536                         break;
 537                 case RADEON_PACKET_TYPE2:
 538                         p->idx += pkt.count + 2;
 539                         break;
 540                 default:
 541                         DRM_ERROR("Unknown packet type %d !\n", pkt.type);
 542                         return -EINVAL;
 543                 }
 544         } while (p->idx < p->chunks[p->chunk_ib_idx].length_dw);
 545         return 0;
 546 }
 547
 548 static int radeon_uvd_send_msg(struct radeon_device *rdev,
 549                                int ring, struct radeon_bo *bo,
 550                                struct radeon_fence **fence)
 551 {
 552         struct ttm_validate_buffer tv;
 553         struct ww_acquire_ctx ticket;
 554         struct list_head head;
 555         struct radeon_ib ib;
 556         uint64_t addr;
 557         int i, r;
 558
 559         memset(&tv, 0, sizeof(tv));
 560         tv.bo = &bo->tbo;
 561
 562         INIT_LIST_HEAD(&head);
 563         list_add(&tv.head, &head);
 564
 565         r = ttm_eu_reserve_buffers(&ticket, &head);
 566         if (r)
 567                 return r;
 568
 569         radeon_ttm_placement_from_domain(bo, RADEON_GEM_DOMAIN_VRAM);
 570         radeon_uvd_force_into_uvd_segment(bo);
 571
 572         r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
 573         if (r)
 574                 goto err;
 575
 576         r = radeon_ib_get(rdev, ring, &ib, NULL, 16);
 577         if (r)
 578                 goto err;
 579
 580         addr = radeon_bo_gpu_offset(bo);
 581         ib.ptr[0] = PACKET0(UVD_GPCOM_VCPU_DATA0, 0);
 582         ib.ptr[1] = addr;
 583         ib.ptr[2] = PACKET0(UVD_GPCOM_VCPU_DATA1, 0);
 584         ib.ptr[3] = addr >> 32;
 585         ib.ptr[4] = PACKET0(UVD_GPCOM_VCPU_CMD, 0);
 586         ib.ptr[5] = 0;
 587         for (i = 6; i < 16; ++i)
 588                 ib.ptr[i] = PACKET2(0);
 589         ib.length_dw = 16;
 590
 591         r = radeon_ib_schedule(rdev, &ib, NULL);
 592         if (r)
 593                 goto err;
 594         ttm_eu_fence_buffer_objects(&ticket, &head, ib.fence);
 595
 596         if (fence)
 597                 *fence = radeon_fence_ref(ib.fence);
 598
 599         radeon_ib_free(rdev, &ib);
 600         radeon_bo_unref(&bo);
 601         return 0;
 602
 603 err:
 604         ttm_eu_backoff_reservation(&ticket, &head);
 605         return r;
 606 }
 607
 608 /* multiple fence commands without any stream commands in between can
 609    crash the vcpu so just try to emmit a dummy create/destroy msg to
 610    avoid this */
 611 int radeon_uvd_get_create_msg(struct radeon_device *rdev, int ring,
 612                               uint32_t handle, struct radeon_fence **fence)
 613 {
 614         struct radeon_bo *bo;
 615         uint32_t *msg;
 616         int r, i;
 617
 618         r = radeon_bo_create(rdev, 1024, PAGE_SIZE, true,
 619                              RADEON_GEM_DOMAIN_VRAM, NULL, &bo);
 620         if (r)
 621                 return r;
 622
 623         r = radeon_bo_reserve(bo, false);
 624         if (r) {
 625                 radeon_bo_unref(&bo);
 626                 return r;
 627         }
 628
 629         r = radeon_bo_kmap(bo, (void **)&msg);
 630         if (r) {
 631                 radeon_bo_unreserve(bo);
 632                 radeon_bo_unref(&bo);
 633                 return r;
 634         }
 635
 636         /* stitch together an UVD create msg */
 637         msg[0] = cpu_to_le32(0x00000de4);
 638         msg[1] = cpu_to_le32(0x00000000);
 639         msg[2] = cpu_to_le32(handle);
 640         msg[3] = cpu_to_le32(0x00000000);
 641         msg[4] = cpu_to_le32(0x00000000);
 642         msg[5] = cpu_to_le32(0x00000000);
 643         msg[6] = cpu_to_le32(0x00000000);
 644         msg[7] = cpu_to_le32(0x00000780);
 645         msg[8] = cpu_to_le32(0x00000440);
 646         msg[9] = cpu_to_le32(0x00000000);
 647         msg[10] = cpu_to_le32(0x01b37000);
 648         for (i = 11; i < 1024; ++i)
 649                 msg[i] = cpu_to_le32(0x0);
 650
 651         radeon_bo_kunmap(bo);
 652         radeon_bo_unreserve(bo);
 653
 654         return radeon_uvd_send_msg(rdev, ring, bo, fence);
 655 }
 656
 657 int radeon_uvd_get_destroy_msg(struct radeon_device *rdev, int ring,
 658                                uint32_t handle, struct radeon_fence **fence)
 659 {
 660         struct radeon_bo *bo;
 661         uint32_t *msg;
 662         int r, i;
 663
 664         r = radeon_bo_create(rdev, 1024, PAGE_SIZE, true,
 665                              RADEON_GEM_DOMAIN_VRAM, NULL, &bo);
 666         if (r)
 667                 return r;
 668
 669         r = radeon_bo_reserve(bo, false);
 670         if (r) {
 671                 radeon_bo_unref(&bo);
 672                 return r;
 673         }
 674
 675         r = radeon_bo_kmap(bo, (void **)&msg);
 676         if (r) {
 677                 radeon_bo_unreserve(bo);
 678                 radeon_bo_unref(&bo);
 679                 return r;
 680         }
 681
 682         /* stitch together an UVD destroy msg */
 683         msg[0] = cpu_to_le32(0x00000de4);
 684         msg[1] = cpu_to_le32(0x00000002);
 685         msg[2] = cpu_to_le32(handle);
 686         msg[3] = cpu_to_le32(0x00000000);
 687         for (i = 4; i < 1024; ++i)
 688                 msg[i] = cpu_to_le32(0x0);
 689
 690         radeon_bo_kunmap(bo);
 691         radeon_bo_unreserve(bo);
 692
 693         return radeon_uvd_send_msg(rdev, ring, bo, fence);
 694 }
 695
 696 static void radeon_uvd_idle_work_handler(struct work_struct *work)
 697 {
 698         struct radeon_device *rdev =
 699                 container_of(work, struct radeon_device, uvd.idle_work.work);
 700
 701         if (radeon_fence_count_emitted(rdev, R600_RING_TYPE_UVD_INDEX) == 0) {
 702                 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
 703                         mutex_lock(&rdev->pm.mutex);
 704                         rdev->pm.dpm.uvd_active = false;
 705                         mutex_unlock(&rdev->pm.mutex);
 706                         radeon_pm_compute_clocks(rdev);
 707                 } else {
 708                         radeon_set_uvd_clocks(rdev, 0, 0);
 709                 }
 710         } else {
 711                 schedule_delayed_work(&rdev->uvd.idle_work,
 712                                       msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
 713         }
 714 }
 715
 716 void radeon_uvd_note_usage(struct radeon_device *rdev)
 717 {
 718         bool set_clocks = !cancel_delayed_work_sync(&rdev->uvd.idle_work);
 719         set_clocks &= schedule_delayed_work(&rdev->uvd.idle_work,
 720                                             msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
 721         if (set_clocks) {
 722                 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
 723                         /* XXX pick SD/HD/MVC */
 724                         radeon_dpm_enable_power_state(rdev, POWER_STATE_TYPE_INTERNAL_UVD);
 725                 } else {
 726                         radeon_set_uvd_clocks(rdev, 53300, 40000);
 727                 }
 728         }
 729 }
 730
 731 static unsigned radeon_uvd_calc_upll_post_div(unsigned vco_freq,
 732                                               unsigned target_freq,
 733                                               unsigned pd_min,
 734                                               unsigned pd_even)
 735 {
 736         unsigned post_div = vco_freq / target_freq;
 737
 738         /* adjust to post divider minimum value */
 739         if (post_div < pd_min)
 740                 post_div = pd_min;
 741
 742         /* we alway need a frequency less than or equal the target */
 743         if ((vco_freq / post_div) > target_freq)
 744                 post_div += 1;
 745
 746         /* post dividers above a certain value must be even */
 747         if (post_div > pd_even && post_div % 2)
 748                 post_div += 1;
 749
 750         return post_div;
 751 }
 752
 753 /**
 754  * radeon_uvd_calc_upll_dividers - calc UPLL clock dividers
 755  *
 756  * @rdev: radeon_device pointer
 757  * @vclk: wanted VCLK
 758  * @dclk: wanted DCLK
 759  * @vco_min: minimum VCO frequency
 760  * @vco_max: maximum VCO frequency
 761  * @fb_factor: factor to multiply vco freq with
 762  * @fb_mask: limit and bitmask for feedback divider
 763  * @pd_min: post divider minimum
 764  * @pd_max: post divider maximum
 765  * @pd_even: post divider must be even above this value
 766  * @optimal_fb_div: resulting feedback divider
 767  * @optimal_vclk_div: resulting vclk post divider
 768  * @optimal_dclk_div: resulting dclk post divider
 769  *
 770  * Calculate dividers for UVDs UPLL (R6xx-SI, except APUs).
 771  * Returns zero on success -EINVAL on error.
 772  */
 773 int radeon_uvd_calc_upll_dividers(struct radeon_device *rdev,
 774                                   unsigned vclk, unsigned dclk,
 775                                   unsigned vco_min, unsigned vco_max,
 776                                   unsigned fb_factor, unsigned fb_mask,
 777                                   unsigned pd_min, unsigned pd_max,
 778                                   unsigned pd_even,
 779                                   unsigned *optimal_fb_div,
 780                                   unsigned *optimal_vclk_div,
 781                                   unsigned *optimal_dclk_div)
 782 {
 783         unsigned vco_freq, ref_freq = rdev->clock.spll.reference_freq;
 784
 785         /* start off with something large */
 786         unsigned optimal_score = ~0;
 787
 788         /* loop through vco from low to high */
 789         vco_min = max(max(vco_min, vclk), dclk);
 790         for (vco_freq = vco_min; vco_freq <= vco_max; vco_freq += 100) {
 791
 792                 uint64_t fb_div = (uint64_t)vco_freq * fb_factor;
 793                 unsigned vclk_div, dclk_div, score;
 794
 795                 do_div(fb_div, ref_freq);
 796
 797                 /* fb div out of range ? */
 798                 if (fb_div > fb_mask)
 799                         break; /* it can oly get worse */
 800
 801                 fb_div &= fb_mask;
 802
 803                 /* calc vclk divider with current vco freq */
 804                 vclk_div = radeon_uvd_calc_upll_post_div(vco_freq, vclk,
 805                                                          pd_min, pd_even);
 806                 if (vclk_div > pd_max)
 807                         break; /* vco is too big, it has to stop */
 808
 809                 /* calc dclk divider with current vco freq */
 810                 dclk_div = radeon_uvd_calc_upll_post_div(vco_freq, dclk,
 811                                                          pd_min, pd_even);
 812                 if (vclk_div > pd_max)
 813                         break; /* vco is too big, it has to stop */
 814
 815                 /* calc score with current vco freq */
 816                 score = vclk - (vco_freq / vclk_div) + dclk - (vco_freq / dclk_div);
 817
 818                 /* determine if this vco setting is better than current optimal settings */
 819                 if (score < optimal_score) {
 820                         *optimal_fb_div = fb_div;
 821                         *optimal_vclk_div = vclk_div;
 822                         *optimal_dclk_div = dclk_div;
 823                         optimal_score = score;
 824                         if (optimal_score == 0)
 825                                 break; /* it can't get better than this */
 826                 }
 827         }
 828
 829         /* did we found a valid setup ? */
 830         if (optimal_score == ~0)
 831                 return -EINVAL;
 832
 833         return 0;
 834 }
 835
 836 int radeon_uvd_send_upll_ctlreq(struct radeon_device *rdev,
 837                                 unsigned cg_upll_func_cntl)
 838 {
 839         unsigned i;
 840
 841         /* make sure UPLL_CTLREQ is deasserted */
 842         WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
 843
 844         mdelay(10);
 845
 846         /* assert UPLL_CTLREQ */
 847         WREG32_P(cg_upll_func_cntl, UPLL_CTLREQ_MASK, ~UPLL_CTLREQ_MASK);
 848
 849         /* wait for CTLACK and CTLACK2 to get asserted */
 850         for (i = 0; i < 100; ++i) {
 851                 uint32_t mask = UPLL_CTLACK_MASK | UPLL_CTLACK2_MASK;
 852                 if ((RREG32(cg_upll_func_cntl) & mask) == mask)
 853                         break;
 854                 mdelay(10);
 855         }
 856
 857         /* deassert UPLL_CTLREQ */
 858         WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
 859
 860         if (i == 100) {
 861                 DRM_ERROR("Timeout setting UVD clocks!\n");
 862                 return -ETIMEDOUT;
 863         }
 864
 865         return 0;
 866 }