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         unsigned long bo_size;
  60         const char *fw_name;
  61         int i, r;
  62
  63         INIT_DELAYED_WORK(&rdev->uvd.idle_work, radeon_uvd_idle_work_handler);
  64
  65         switch (rdev->family) {
  66         case CHIP_RV710:
  67         case CHIP_RV730:
  68         case CHIP_RV740:
  69                 fw_name = FIRMWARE_RV710;
  70                 break;
  71
  72         case CHIP_CYPRESS:
  73         case CHIP_HEMLOCK:
  74         case CHIP_JUNIPER:
  75         case CHIP_REDWOOD:
  76         case CHIP_CEDAR:
  77                 fw_name = FIRMWARE_CYPRESS;
  78                 break;
  79
  80         case CHIP_SUMO:
  81         case CHIP_SUMO2:
  82         case CHIP_PALM:
  83         case CHIP_CAYMAN:
  84         case CHIP_BARTS:
  85         case CHIP_TURKS:
  86         case CHIP_CAICOS:
  87                 fw_name = FIRMWARE_SUMO;
  88                 break;
  89
  90         case CHIP_TAHITI:
  91         case CHIP_VERDE:
  92         case CHIP_PITCAIRN:
  93         case CHIP_ARUBA:
  94         case CHIP_OLAND:
  95                 fw_name = FIRMWARE_TAHITI;
  96                 break;
  97
  98         case CHIP_BONAIRE:
  99         case CHIP_KABINI:
 100         case CHIP_KAVERI:
 101         case CHIP_HAWAII:
 102                 fw_name = FIRMWARE_BONAIRE;
 103                 break;
 104
 105         default:
 106                 return -EINVAL;
 107         }
 108
 109         r = request_firmware(&rdev->uvd_fw, fw_name, rdev->dev);
 110         if (r) {
 111                 dev_err(rdev->dev, "radeon_uvd: Can't load firmware \"%s\"\n",
 112                         fw_name);
 113                 return r;
 114         }
 115
 116         bo_size = RADEON_GPU_PAGE_ALIGN(rdev->uvd_fw->size + 8) +
 117                   RADEON_UVD_STACK_SIZE + RADEON_UVD_HEAP_SIZE;
 118         r = radeon_bo_create(rdev, bo_size, PAGE_SIZE, true,
 119                              RADEON_GEM_DOMAIN_VRAM, NULL, &rdev->uvd.vcpu_bo);
 120         if (r) {
 121                 dev_err(rdev->dev, "(%d) failed to allocate UVD bo\n", r);
 122                 return r;
 123         }
 124
 125         r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
 126         if (r) {
 127                 radeon_bo_unref(&rdev->uvd.vcpu_bo);
 128                 dev_err(rdev->dev, "(%d) failed to reserve UVD bo\n", r);
 129                 return r;
 130         }
 131
 132         r = radeon_bo_pin(rdev->uvd.vcpu_bo, RADEON_GEM_DOMAIN_VRAM,
 133                           &rdev->uvd.gpu_addr);
 134         if (r) {
 135                 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 136                 radeon_bo_unref(&rdev->uvd.vcpu_bo);
 137                 dev_err(rdev->dev, "(%d) UVD bo pin failed\n", r);
 138                 return r;
 139         }
 140
 141         r = radeon_bo_kmap(rdev->uvd.vcpu_bo, &rdev->uvd.cpu_addr);
 142         if (r) {
 143                 dev_err(rdev->dev, "(%d) UVD map failed\n", r);
 144                 return r;
 145         }
 146
 147         radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 148
 149         for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
 150                 atomic_set(&rdev->uvd.handles[i], 0);
 151                 rdev->uvd.filp[i] = NULL;
 152                 rdev->uvd.img_size[i] = 0;
 153         }
 154
 155         return 0;
 156 }
 157
 158 void radeon_uvd_fini(struct radeon_device *rdev)
 159 {
 160         int r;
 161
 162         if (rdev->uvd.vcpu_bo == NULL)
 163                 return;
 164
 165         r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
 166         if (!r) {
 167                 radeon_bo_kunmap(rdev->uvd.vcpu_bo);
 168                 radeon_bo_unpin(rdev->uvd.vcpu_bo);
 169                 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 170         }
 171
 172         radeon_bo_unref(&rdev->uvd.vcpu_bo);
 173
 174         radeon_ring_fini(rdev, &rdev->ring[R600_RING_TYPE_UVD_INDEX]);
 175
 176         release_firmware(rdev->uvd_fw);
 177 }
 178
 179 int radeon_uvd_suspend(struct radeon_device *rdev)
 180 {
 181         unsigned size;
 182         void *ptr;
 183         int i;
 184
 185         if (rdev->uvd.vcpu_bo == NULL)
 186                 return 0;
 187
 188         for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i)
 189                 if (atomic_read(&rdev->uvd.handles[i]))
 190                         break;
 191
 192         if (i == RADEON_MAX_UVD_HANDLES)
 193                 return 0;
 194
 195         size = radeon_bo_size(rdev->uvd.vcpu_bo);
 196         size -= rdev->uvd_fw->size;
 197
 198         ptr = rdev->uvd.cpu_addr;
 199         ptr += rdev->uvd_fw->size;
 200
 201         rdev->uvd.saved_bo = kmalloc(size, GFP_KERNEL);
 202         memcpy(rdev->uvd.saved_bo, ptr, size);
 203
 204         return 0;
 205 }
 206
 207 int radeon_uvd_resume(struct radeon_device *rdev)
 208 {
 209         unsigned size;
 210         void *ptr;
 211
 212         if (rdev->uvd.vcpu_bo == NULL)
 213                 return -EINVAL;
 214
 215         memcpy(rdev->uvd.cpu_addr, rdev->uvd_fw->data, rdev->uvd_fw->size);
 216
 217         size = radeon_bo_size(rdev->uvd.vcpu_bo);
 218         size -= rdev->uvd_fw->size;
 219
 220         ptr = rdev->uvd.cpu_addr;
 221         ptr += rdev->uvd_fw->size;
 222
 223         if (rdev->uvd.saved_bo != NULL) {
 224                 memcpy(ptr, rdev->uvd.saved_bo, size);
 225                 kfree(rdev->uvd.saved_bo);
 226                 rdev->uvd.saved_bo = NULL;
 227         } else
 228                 memset(ptr, 0, size);
 229
 230         return 0;
 231 }
 232
 233 void radeon_uvd_force_into_uvd_segment(struct radeon_bo *rbo)
 234 {
 235         rbo->placement.fpfn = 0 >> PAGE_SHIFT;
 236         rbo->placement.lpfn = (256 * 1024 * 1024) >> PAGE_SHIFT;
 237 }
 238
 239 void radeon_uvd_free_handles(struct radeon_device *rdev, struct drm_file *filp)
 240 {
 241         int i, r;
 242         for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
 243                 uint32_t handle = atomic_read(&rdev->uvd.handles[i]);
 244                 if (handle != 0 && rdev->uvd.filp[i] == filp) {
 245                         struct radeon_fence *fence;
 246
 247                         radeon_uvd_note_usage(rdev);
 248
 249                         r = radeon_uvd_get_destroy_msg(rdev,
 250                                 R600_RING_TYPE_UVD_INDEX, handle, &fence);
 251                         if (r) {
 252                                 DRM_ERROR("Error destroying UVD (%d)!\n", r);
 253                                 continue;
 254                         }
 255
 256                         radeon_fence_wait(fence, false);
 257                         radeon_fence_unref(&fence);
 258
 259                         rdev->uvd.filp[i] = NULL;
 260                         atomic_set(&rdev->uvd.handles[i], 0);
 261                 }
 262         }
 263 }
 264
 265 static int radeon_uvd_cs_msg_decode(uint32_t *msg, unsigned buf_sizes[])
 266 {
 267         unsigned stream_type = msg[4];
 268         unsigned width = msg[6];
 269         unsigned height = msg[7];
 270         unsigned dpb_size = msg[9];
 271         unsigned pitch = msg[28];
 272
 273         unsigned width_in_mb = width / 16;
 274         unsigned height_in_mb = ALIGN(height / 16, 2);
 275
 276         unsigned image_size, tmp, min_dpb_size;
 277
 278         image_size = width * height;
 279         image_size += image_size / 2;
 280         image_size = ALIGN(image_size, 1024);
 281
 282         switch (stream_type) {
 283         case 0: /* H264 */
 284
 285                 /* reference picture buffer */
 286                 min_dpb_size = image_size * 17;
 287
 288                 /* macroblock context buffer */
 289                 min_dpb_size += width_in_mb * height_in_mb * 17 * 192;
 290
 291                 /* IT surface buffer */
 292                 min_dpb_size += width_in_mb * height_in_mb * 32;
 293                 break;
 294
 295         case 1: /* VC1 */
 296
 297                 /* reference picture buffer */
 298                 min_dpb_size = image_size * 3;
 299
 300                 /* CONTEXT_BUFFER */
 301                 min_dpb_size += width_in_mb * height_in_mb * 128;
 302
 303                 /* IT surface buffer */
 304                 min_dpb_size += width_in_mb * 64;
 305
 306                 /* DB surface buffer */
 307                 min_dpb_size += width_in_mb * 128;
 308
 309                 /* BP */
 310                 tmp = max(width_in_mb, height_in_mb);
 311                 min_dpb_size += ALIGN(tmp * 7 * 16, 64);
 312                 break;
 313
 314         case 3: /* MPEG2 */
 315
 316                 /* reference picture buffer */
 317                 min_dpb_size = image_size * 3;
 318                 break;
 319
 320         case 4: /* MPEG4 */
 321
 322                 /* reference picture buffer */
 323                 min_dpb_size = image_size * 3;
 324
 325                 /* CM */
 326                 min_dpb_size += width_in_mb * height_in_mb * 64;
 327
 328                 /* IT surface buffer */
 329                 min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64);
 330                 break;
 331
 332         default:
 333                 DRM_ERROR("UVD codec not handled %d!\n", stream_type);
 334                 return -EINVAL;
 335         }
 336
 337         if (width > pitch) {
 338                 DRM_ERROR("Invalid UVD decoding target pitch!\n");
 339                 return -EINVAL;
 340         }
 341
 342         if (dpb_size < min_dpb_size) {
 343                 DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n",
 344                           dpb_size, min_dpb_size);
 345                 return -EINVAL;
 346         }
 347
 348         buf_sizes[0x1] = dpb_size;
 349         buf_sizes[0x2] = image_size;
 350         return 0;
 351 }
 352
 353 static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
 354                              unsigned offset, unsigned buf_sizes[])
 355 {
 356         int32_t *msg, msg_type, handle;
 357         unsigned img_size = 0;
 358         void *ptr;
 359
 360         int i, r;
 361
 362         if (offset & 0x3F) {
 363                 DRM_ERROR("UVD messages must be 64 byte aligned!\n");
 364                 return -EINVAL;
 365         }
 366
 367         if (bo->tbo.sync_obj) {
 368                 r = radeon_fence_wait(bo->tbo.sync_obj, false);
 369                 if (r) {
 370                         DRM_ERROR("Failed waiting for UVD message (%d)!\n", r);
 371                         return r;
 372                 }
 373         }
 374
 375         r = radeon_bo_kmap(bo, &ptr);
 376         if (r) {
 377                 DRM_ERROR("Failed mapping the UVD message (%d)!\n", r);
 378                 return r;
 379         }
 380
 381         msg = ptr + offset;
 382
 383         msg_type = msg[1];
 384         handle = msg[2];
 385
 386         if (handle == 0) {
 387                 DRM_ERROR("Invalid UVD handle!\n");
 388                 return -EINVAL;
 389         }
 390
 391         if (msg_type == 1) {
 392                 /* it's a decode msg, calc buffer sizes */
 393                 r = radeon_uvd_cs_msg_decode(msg, buf_sizes);
 394                 /* calc image size (width * height) */
 395                 img_size = msg[6] * msg[7];
 396                 radeon_bo_kunmap(bo);
 397                 if (r)
 398                         return r;
 399
 400         } else if (msg_type == 2) {
 401                 /* it's a destroy msg, free the handle */
 402                 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i)
 403                         atomic_cmpxchg(&p->rdev->uvd.handles[i], handle, 0);
 404                 radeon_bo_kunmap(bo);
 405                 return 0;
 406         } else {
 407                 /* it's a create msg, calc image size (width * height) */
 408                 img_size = msg[7] * msg[8];
 409                 radeon_bo_kunmap(bo);
 410
 411                 if (msg_type != 0) {
 412                         DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
 413                         return -EINVAL;
 414                 }
 415
 416                 /* it's a create msg, no special handling needed */
 417         }
 418
 419         /* create or decode, validate the handle */
 420         for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
 421                 if (atomic_read(&p->rdev->uvd.handles[i]) == handle)
 422                         return 0;
 423         }
 424
 425         /* handle not found try to alloc a new one */
 426         for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
 427                 if (!atomic_cmpxchg(&p->rdev->uvd.handles[i], 0, handle)) {
 428                         p->rdev->uvd.filp[i] = p->filp;
 429                         p->rdev->uvd.img_size[i] = img_size;
 430                         return 0;
 431                 }
 432         }
 433
 434         DRM_ERROR("No more free UVD handles!\n");
 435         return -EINVAL;
 436 }
 437
 438 static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p,
 439                                int data0, int data1,
 440                                unsigned buf_sizes[], bool *has_msg_cmd)
 441 {
 442         struct radeon_cs_chunk *relocs_chunk;
 443         struct radeon_cs_reloc *reloc;
 444         unsigned idx, cmd, offset;
 445         uint64_t start, end;
 446         int r;
 447
 448         relocs_chunk = &p->chunks[p->chunk_relocs_idx];
 449         offset = radeon_get_ib_value(p, data0);
 450         idx = radeon_get_ib_value(p, data1);
 451         if (idx >= relocs_chunk->length_dw) {
 452                 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
 453                           idx, relocs_chunk->length_dw);
 454                 return -EINVAL;
 455         }
 456
 457         reloc = p->relocs_ptr[(idx / 4)];
 458         start = reloc->lobj.gpu_offset;
 459         end = start + radeon_bo_size(reloc->robj);
 460         start += offset;
 461
 462         p->ib.ptr[data0] = start & 0xFFFFFFFF;
 463         p->ib.ptr[data1] = start >> 32;
 464
 465         cmd = radeon_get_ib_value(p, p->idx) >> 1;
 466
 467         if (cmd < 0x4) {
 468                 if ((end - start) < buf_sizes[cmd]) {
 469                         DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
 470                                   (unsigned)(end - start), buf_sizes[cmd]);
 471                         return -EINVAL;
 472                 }
 473
 474         } else if (cmd != 0x100) {
 475                 DRM_ERROR("invalid UVD command %X!\n", cmd);
 476                 return -EINVAL;
 477         }
 478
 479         if ((start >> 28) != ((end - 1) >> 28)) {
 480                 DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
 481                           start, end);
 482                 return -EINVAL;
 483         }
 484
 485         /* TODO: is this still necessary on NI+ ? */
 486         if ((cmd == 0 || cmd == 0x3) &&
 487             (start >> 28) != (p->rdev->uvd.gpu_addr >> 28)) {
 488                 DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n",
 489                           start, end);
 490                 return -EINVAL;
 491         }
 492
 493         if (cmd == 0) {
 494                 if (*has_msg_cmd) {
 495                         DRM_ERROR("More than one message in a UVD-IB!\n");
 496                         return -EINVAL;
 497                 }
 498                 *has_msg_cmd = true;
 499                 r = radeon_uvd_cs_msg(p, reloc->robj, offset, buf_sizes);
 500                 if (r)
 501                         return r;
 502         } else if (!*has_msg_cmd) {
 503                 DRM_ERROR("Message needed before other commands are send!\n");
 504                 return -EINVAL;
 505         }
 506
 507         return 0;
 508 }
 509
 510 static int radeon_uvd_cs_reg(struct radeon_cs_parser *p,
 511                              struct radeon_cs_packet *pkt,
 512                              int *data0, int *data1,
 513                              unsigned buf_sizes[],
 514                              bool *has_msg_cmd)
 515 {
 516         int i, r;
 517
 518         p->idx++;
 519         for (i = 0; i <= pkt->count; ++i) {
 520                 switch (pkt->reg + i*4) {
 521                 case UVD_GPCOM_VCPU_DATA0:
 522                         *data0 = p->idx;
 523                         break;
 524                 case UVD_GPCOM_VCPU_DATA1:
 525                         *data1 = p->idx;
 526                         break;
 527                 case UVD_GPCOM_VCPU_CMD:
 528                         r = radeon_uvd_cs_reloc(p, *data0, *data1,
 529                                                 buf_sizes, has_msg_cmd);
 530                         if (r)
 531                                 return r;
 532                         break;
 533                 case UVD_ENGINE_CNTL:
 534                         break;
 535                 default:
 536                         DRM_ERROR("Invalid reg 0x%X!\n",
 537                                   pkt->reg + i*4);
 538                         return -EINVAL;
 539                 }
 540                 p->idx++;
 541         }
 542         return 0;
 543 }
 544
 545 int radeon_uvd_cs_parse(struct radeon_cs_parser *p)
 546 {
 547         struct radeon_cs_packet pkt;
 548         int r, data0 = 0, data1 = 0;
 549
 550         /* does the IB has a msg command */
 551         bool has_msg_cmd = false;
 552
 553         /* minimum buffer sizes */
 554         unsigned buf_sizes[] = {
 555                 [0x00000000]    =       2048,
 556                 [0x00000001]    =       32 * 1024 * 1024,
 557                 [0x00000002]    =       2048 * 1152 * 3,
 558                 [0x00000003]    =       2048,
 559         };
 560
 561         if (p->chunks[p->chunk_ib_idx].length_dw % 16) {
 562                 DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n",
 563                           p->chunks[p->chunk_ib_idx].length_dw);
 564                 return -EINVAL;
 565         }
 566
 567         if (p->chunk_relocs_idx == -1) {
 568                 DRM_ERROR("No relocation chunk !\n");
 569                 return -EINVAL;
 570         }
 571
 572
 573         do {
 574                 r = radeon_cs_packet_parse(p, &pkt, p->idx);
 575                 if (r)
 576                         return r;
 577                 switch (pkt.type) {
 578                 case RADEON_PACKET_TYPE0:
 579                         r = radeon_uvd_cs_reg(p, &pkt, &data0, &data1,
 580                                               buf_sizes, &has_msg_cmd);
 581                         if (r)
 582                                 return r;
 583                         break;
 584                 case RADEON_PACKET_TYPE2:
 585                         p->idx += pkt.count + 2;
 586                         break;
 587                 default:
 588                         DRM_ERROR("Unknown packet type %d !\n", pkt.type);
 589                         return -EINVAL;
 590                 }
 591         } while (p->idx < p->chunks[p->chunk_ib_idx].length_dw);
 592
 593         if (!has_msg_cmd) {
 594                 DRM_ERROR("UVD-IBs need a msg command!\n");
 595                 return -EINVAL;
 596         }
 597
 598         return 0;
 599 }
 600
 601 static int radeon_uvd_send_msg(struct radeon_device *rdev,
 602                                int ring, struct radeon_bo *bo,
 603                                struct radeon_fence **fence)
 604 {
 605         struct ttm_validate_buffer tv;
 606         struct ww_acquire_ctx ticket;
 607         struct list_head head;
 608         struct radeon_ib ib;
 609         uint64_t addr;
 610         int i, r;
 611
 612         memset(&tv, 0, sizeof(tv));
 613         tv.bo = &bo->tbo;
 614
 615         INIT_LIST_HEAD(&head);
 616         list_add(&tv.head, &head);
 617
 618         r = ttm_eu_reserve_buffers(&ticket, &head);
 619         if (r)
 620                 return r;
 621
 622         radeon_ttm_placement_from_domain(bo, RADEON_GEM_DOMAIN_VRAM);
 623         radeon_uvd_force_into_uvd_segment(bo);
 624
 625         r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
 626         if (r)
 627                 goto err;
 628
 629         r = radeon_ib_get(rdev, ring, &ib, NULL, 64);
 630         if (r)
 631                 goto err;
 632
 633         addr = radeon_bo_gpu_offset(bo);
 634         ib.ptr[0] = PACKET0(UVD_GPCOM_VCPU_DATA0, 0);
 635         ib.ptr[1] = addr;
 636         ib.ptr[2] = PACKET0(UVD_GPCOM_VCPU_DATA1, 0);
 637         ib.ptr[3] = addr >> 32;
 638         ib.ptr[4] = PACKET0(UVD_GPCOM_VCPU_CMD, 0);
 639         ib.ptr[5] = 0;
 640         for (i = 6; i < 16; ++i)
 641                 ib.ptr[i] = PACKET2(0);
 642         ib.length_dw = 16;
 643
 644         r = radeon_ib_schedule(rdev, &ib, NULL);
 645         if (r)
 646                 goto err;
 647         ttm_eu_fence_buffer_objects(&ticket, &head, ib.fence);
 648
 649         if (fence)
 650                 *fence = radeon_fence_ref(ib.fence);
 651
 652         radeon_ib_free(rdev, &ib);
 653         radeon_bo_unref(&bo);
 654         return 0;
 655
 656 err:
 657         ttm_eu_backoff_reservation(&ticket, &head);
 658         return r;
 659 }
 660
 661 /* multiple fence commands without any stream commands in between can
 662    crash the vcpu so just try to emmit a dummy create/destroy msg to
 663    avoid this */
 664 int radeon_uvd_get_create_msg(struct radeon_device *rdev, int ring,
 665                               uint32_t handle, struct radeon_fence **fence)
 666 {
 667         struct radeon_bo *bo;
 668         uint32_t *msg;
 669         int r, i;
 670
 671         r = radeon_bo_create(rdev, 1024, PAGE_SIZE, true,
 672                              RADEON_GEM_DOMAIN_VRAM, NULL, &bo);
 673         if (r)
 674                 return r;
 675
 676         r = radeon_bo_reserve(bo, false);
 677         if (r) {
 678                 radeon_bo_unref(&bo);
 679                 return r;
 680         }
 681
 682         r = radeon_bo_kmap(bo, (void **)&msg);
 683         if (r) {
 684                 radeon_bo_unreserve(bo);
 685                 radeon_bo_unref(&bo);
 686                 return r;
 687         }
 688
 689         /* stitch together an UVD create msg */
 690         msg[0] = cpu_to_le32(0x00000de4);
 691         msg[1] = cpu_to_le32(0x00000000);
 692         msg[2] = cpu_to_le32(handle);
 693         msg[3] = cpu_to_le32(0x00000000);
 694         msg[4] = cpu_to_le32(0x00000000);
 695         msg[5] = cpu_to_le32(0x00000000);
 696         msg[6] = cpu_to_le32(0x00000000);
 697         msg[7] = cpu_to_le32(0x00000780);
 698         msg[8] = cpu_to_le32(0x00000440);
 699         msg[9] = cpu_to_le32(0x00000000);
 700         msg[10] = cpu_to_le32(0x01b37000);
 701         for (i = 11; i < 1024; ++i)
 702                 msg[i] = cpu_to_le32(0x0);
 703
 704         radeon_bo_kunmap(bo);
 705         radeon_bo_unreserve(bo);
 706
 707         return radeon_uvd_send_msg(rdev, ring, bo, fence);
 708 }
 709
 710 int radeon_uvd_get_destroy_msg(struct radeon_device *rdev, int ring,
 711                                uint32_t handle, struct radeon_fence **fence)
 712 {
 713         struct radeon_bo *bo;
 714         uint32_t *msg;
 715         int r, i;
 716
 717         r = radeon_bo_create(rdev, 1024, PAGE_SIZE, true,
 718                              RADEON_GEM_DOMAIN_VRAM, NULL, &bo);
 719         if (r)
 720                 return r;
 721
 722         r = radeon_bo_reserve(bo, false);
 723         if (r) {
 724                 radeon_bo_unref(&bo);
 725                 return r;
 726         }
 727
 728         r = radeon_bo_kmap(bo, (void **)&msg);
 729         if (r) {
 730                 radeon_bo_unreserve(bo);
 731                 radeon_bo_unref(&bo);
 732                 return r;
 733         }
 734
 735         /* stitch together an UVD destroy msg */
 736         msg[0] = cpu_to_le32(0x00000de4);
 737         msg[1] = cpu_to_le32(0x00000002);
 738         msg[2] = cpu_to_le32(handle);
 739         msg[3] = cpu_to_le32(0x00000000);
 740         for (i = 4; i < 1024; ++i)
 741                 msg[i] = cpu_to_le32(0x0);
 742
 743         radeon_bo_kunmap(bo);
 744         radeon_bo_unreserve(bo);
 745
 746         return radeon_uvd_send_msg(rdev, ring, bo, fence);
 747 }
 748
 749 /**
 750  * radeon_uvd_count_handles - count number of open streams
 751  *
 752  * @rdev: radeon_device pointer
 753  * @sd: number of SD streams
 754  * @hd: number of HD streams
 755  *
 756  * Count the number of open SD/HD streams as a hint for power mangement
 757  */
 758 static void radeon_uvd_count_handles(struct radeon_device *rdev,
 759                                      unsigned *sd, unsigned *hd)
 760 {
 761         unsigned i;
 762
 763         *sd = 0;
 764         *hd = 0;
 765
 766         for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
 767                 if (!atomic_read(&rdev->uvd.handles[i]))
 768                         continue;
 769
 770                 if (rdev->uvd.img_size[i] >= 720*576)
 771                         ++(*hd);
 772                 else
 773                         ++(*sd);
 774         }
 775 }
 776
 777 static void radeon_uvd_idle_work_handler(struct work_struct *work)
 778 {
 779         struct radeon_device *rdev =
 780                 container_of(work, struct radeon_device, uvd.idle_work.work);
 781
 782         if (radeon_fence_count_emitted(rdev, R600_RING_TYPE_UVD_INDEX) == 0) {
 783                 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
 784                         radeon_uvd_count_handles(rdev, &rdev->pm.dpm.sd,
 785                                                  &rdev->pm.dpm.hd);
 786                         radeon_dpm_enable_uvd(rdev, false);
 787                 } else {
 788                         radeon_set_uvd_clocks(rdev, 0, 0);
 789                 }
 790         } else {
 791                 schedule_delayed_work(&rdev->uvd.idle_work,
 792                                       msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
 793         }
 794 }
 795
 796 void radeon_uvd_note_usage(struct radeon_device *rdev)
 797 {
 798         bool streams_changed = false;
 799         bool set_clocks = !cancel_delayed_work_sync(&rdev->uvd.idle_work);
 800         set_clocks &= schedule_delayed_work(&rdev->uvd.idle_work,
 801                                             msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
 802
 803         if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
 804                 unsigned hd = 0, sd = 0;
 805                 radeon_uvd_count_handles(rdev, &sd, &hd);
 806                 if ((rdev->pm.dpm.sd != sd) ||
 807                     (rdev->pm.dpm.hd != hd)) {
 808                         rdev->pm.dpm.sd = sd;
 809                         rdev->pm.dpm.hd = hd;
 810                         /* disable this for now */
 811                         /*streams_changed = true;*/
 812                 }
 813         }
 814
 815         if (set_clocks || streams_changed) {
 816                 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
 817                         radeon_dpm_enable_uvd(rdev, true);
 818                 } else {
 819                         radeon_set_uvd_clocks(rdev, 53300, 40000);
 820                 }
 821         }
 822 }
 823
 824 static unsigned radeon_uvd_calc_upll_post_div(unsigned vco_freq,
 825                                               unsigned target_freq,
 826                                               unsigned pd_min,
 827                                               unsigned pd_even)
 828 {
 829         unsigned post_div = vco_freq / target_freq;
 830
 831         /* adjust to post divider minimum value */
 832         if (post_div < pd_min)
 833                 post_div = pd_min;
 834
 835         /* we alway need a frequency less than or equal the target */
 836         if ((vco_freq / post_div) > target_freq)
 837                 post_div += 1;
 838
 839         /* post dividers above a certain value must be even */
 840         if (post_div > pd_even && post_div % 2)
 841                 post_div += 1;
 842
 843         return post_div;
 844 }
 845
 846 /**
 847  * radeon_uvd_calc_upll_dividers - calc UPLL clock dividers
 848  *
 849  * @rdev: radeon_device pointer
 850  * @vclk: wanted VCLK
 851  * @dclk: wanted DCLK
 852  * @vco_min: minimum VCO frequency
 853  * @vco_max: maximum VCO frequency
 854  * @fb_factor: factor to multiply vco freq with
 855  * @fb_mask: limit and bitmask for feedback divider
 856  * @pd_min: post divider minimum
 857  * @pd_max: post divider maximum
 858  * @pd_even: post divider must be even above this value
 859  * @optimal_fb_div: resulting feedback divider
 860  * @optimal_vclk_div: resulting vclk post divider
 861  * @optimal_dclk_div: resulting dclk post divider
 862  *
 863  * Calculate dividers for UVDs UPLL (R6xx-SI, except APUs).
 864  * Returns zero on success -EINVAL on error.
 865  */
 866 int radeon_uvd_calc_upll_dividers(struct radeon_device *rdev,
 867                                   unsigned vclk, unsigned dclk,
 868                                   unsigned vco_min, unsigned vco_max,
 869                                   unsigned fb_factor, unsigned fb_mask,
 870                                   unsigned pd_min, unsigned pd_max,
 871                                   unsigned pd_even,
 872                                   unsigned *optimal_fb_div,
 873                                   unsigned *optimal_vclk_div,
 874                                   unsigned *optimal_dclk_div)
 875 {
 876         unsigned vco_freq, ref_freq = rdev->clock.spll.reference_freq;
 877
 878         /* start off with something large */
 879         unsigned optimal_score = ~0;
 880
 881         /* loop through vco from low to high */
 882         vco_min = max(max(vco_min, vclk), dclk);
 883         for (vco_freq = vco_min; vco_freq <= vco_max; vco_freq += 100) {
 884
 885                 uint64_t fb_div = (uint64_t)vco_freq * fb_factor;
 886                 unsigned vclk_div, dclk_div, score;
 887
 888                 do_div(fb_div, ref_freq);
 889
 890                 /* fb div out of range ? */
 891                 if (fb_div > fb_mask)
 892                         break; /* it can oly get worse */
 893
 894                 fb_div &= fb_mask;
 895
 896                 /* calc vclk divider with current vco freq */
 897                 vclk_div = radeon_uvd_calc_upll_post_div(vco_freq, vclk,
 898                                                          pd_min, pd_even);
 899                 if (vclk_div > pd_max)
 900                         break; /* vco is too big, it has to stop */
 901
 902                 /* calc dclk divider with current vco freq */
 903                 dclk_div = radeon_uvd_calc_upll_post_div(vco_freq, dclk,
 904                                                          pd_min, pd_even);
 905                 if (vclk_div > pd_max)
 906                         break; /* vco is too big, it has to stop */
 907
 908                 /* calc score with current vco freq */
 909                 score = vclk - (vco_freq / vclk_div) + dclk - (vco_freq / dclk_div);
 910
 911                 /* determine if this vco setting is better than current optimal settings */
 912                 if (score < optimal_score) {
 913                         *optimal_fb_div = fb_div;
 914                         *optimal_vclk_div = vclk_div;
 915                         *optimal_dclk_div = dclk_div;
 916                         optimal_score = score;
 917                         if (optimal_score == 0)
 918                                 break; /* it can't get better than this */
 919                 }
 920         }
 921
 922         /* did we found a valid setup ? */
 923         if (optimal_score == ~0)
 924                 return -EINVAL;
 925
 926         return 0;
 927 }
 928
 929 int radeon_uvd_send_upll_ctlreq(struct radeon_device *rdev,
 930                                 unsigned cg_upll_func_cntl)
 931 {
 932         unsigned i;
 933
 934         /* make sure UPLL_CTLREQ is deasserted */
 935         WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
 936
 937         mdelay(10);
 938
 939         /* assert UPLL_CTLREQ */
 940         WREG32_P(cg_upll_func_cntl, UPLL_CTLREQ_MASK, ~UPLL_CTLREQ_MASK);
 941
 942         /* wait for CTLACK and CTLACK2 to get asserted */
 943         for (i = 0; i < 100; ++i) {
 944                 uint32_t mask = UPLL_CTLACK_MASK | UPLL_CTLACK2_MASK;
 945                 if ((RREG32(cg_upll_func_cntl) & mask) == mask)
 946                         break;
 947                 mdelay(10);
 948         }
 949
 950         /* deassert UPLL_CTLREQ */
 951         WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
 952
 953         if (i == 100) {
 954                 DRM_ERROR("Timeout setting UVD clocks!\n");
 955                 return -ETIMEDOUT;
 956         }
 957
 958         return 0;
 959 }