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
  34 #include <drm/drm.h>
  35
  36 #include "radeon.h"
  37 #include "radeon_ucode.h"
  38 #include "r600d.h"
  39
  40 /* 1 second timeout */
  41 #define UVD_IDLE_TIMEOUT_MS     1000
  42
  43 /* Firmware Names */
  44 #define FIRMWARE_R600           "radeon/R600_uvd.bin"
  45 #define FIRMWARE_RS780          "radeon/RS780_uvd.bin"
  46 #define FIRMWARE_RV770          "radeon/RV770_uvd.bin"
  47 #define FIRMWARE_RV710          "radeon/RV710_uvd.bin"
  48 #define FIRMWARE_CYPRESS        "radeon/CYPRESS_uvd.bin"
  49 #define FIRMWARE_SUMO           "radeon/SUMO_uvd.bin"
  50 #define FIRMWARE_TAHITI         "radeon/TAHITI_uvd.bin"
  51 #define FIRMWARE_BONAIRE_LEGACY "radeon/BONAIRE_uvd.bin"
  52 #define FIRMWARE_BONAIRE        "radeon/bonaire_uvd.bin"
  53
  54 MODULE_FIRMWARE(FIRMWARE_R600);
  55 MODULE_FIRMWARE(FIRMWARE_RS780);
  56 MODULE_FIRMWARE(FIRMWARE_RV770);
  57 MODULE_FIRMWARE(FIRMWARE_RV710);
  58 MODULE_FIRMWARE(FIRMWARE_CYPRESS);
  59 MODULE_FIRMWARE(FIRMWARE_SUMO);
  60 MODULE_FIRMWARE(FIRMWARE_TAHITI);
  61 MODULE_FIRMWARE(FIRMWARE_BONAIRE_LEGACY);
  62 MODULE_FIRMWARE(FIRMWARE_BONAIRE);
  63
  64 static void radeon_uvd_idle_work_handler(struct work_struct *work);
  65
  66 int radeon_uvd_init(struct radeon_device *rdev)
  67 {
  68         unsigned long bo_size;
  69         const char *fw_name = NULL, *legacy_fw_name = NULL;
  70         int i, r;
  71
  72         INIT_DELAYED_WORK(&rdev->uvd.idle_work, radeon_uvd_idle_work_handler);
  73
  74         switch (rdev->family) {
  75         case CHIP_RV610:
  76         case CHIP_RV630:
  77         case CHIP_RV670:
  78         case CHIP_RV620:
  79         case CHIP_RV635:
  80                 legacy_fw_name = FIRMWARE_R600;
  81                 break;
  82
  83         case CHIP_RS780:
  84         case CHIP_RS880:
  85                 legacy_fw_name = FIRMWARE_RS780;
  86                 break;
  87
  88         case CHIP_RV770:
  89                 legacy_fw_name = FIRMWARE_RV770;
  90                 break;
  91
  92         case CHIP_RV710:
  93         case CHIP_RV730:
  94         case CHIP_RV740:
  95                 legacy_fw_name = FIRMWARE_RV710;
  96                 break;
  97
  98         case CHIP_CYPRESS:
  99         case CHIP_HEMLOCK:
 100         case CHIP_JUNIPER:
 101         case CHIP_REDWOOD:
 102         case CHIP_CEDAR:
 103                 legacy_fw_name = FIRMWARE_CYPRESS;
 104                 break;
 105
 106         case CHIP_SUMO:
 107         case CHIP_SUMO2:
 108         case CHIP_PALM:
 109         case CHIP_CAYMAN:
 110         case CHIP_BARTS:
 111         case CHIP_TURKS:
 112         case CHIP_CAICOS:
 113                 legacy_fw_name = FIRMWARE_SUMO;
 114                 break;
 115
 116         case CHIP_TAHITI:
 117         case CHIP_VERDE:
 118         case CHIP_PITCAIRN:
 119         case CHIP_ARUBA:
 120         case CHIP_OLAND:
 121                 legacy_fw_name = FIRMWARE_TAHITI;
 122                 break;
 123
 124         case CHIP_BONAIRE:
 125         case CHIP_KABINI:
 126         case CHIP_KAVERI:
 127         case CHIP_HAWAII:
 128         case CHIP_MULLINS:
 129                 legacy_fw_name = FIRMWARE_BONAIRE_LEGACY;
 130                 fw_name = FIRMWARE_BONAIRE;
 131                 break;
 132
 133         default:
 134                 return -EINVAL;
 135         }
 136
 137         rdev->uvd.fw_header_present = false;
 138         rdev->uvd.max_handles = RADEON_DEFAULT_UVD_HANDLES;
 139         if (fw_name) {
 140                 /* Let's try to load the newer firmware first */
 141                 r = request_firmware(&rdev->uvd_fw, fw_name, rdev->dev);
 142                 if (r) {
 143                         dev_err(rdev->dev, "radeon_uvd: Can't load firmware \"%s\"\n",
 144                                 fw_name);
 145                 } else {
 146                         struct common_firmware_header *hdr = (void *)rdev->uvd_fw->data;
 147                         unsigned version_major, version_minor, family_id;
 148
 149                         r = radeon_ucode_validate(rdev->uvd_fw);
 150                         if (r)
 151                                 return r;
 152
 153                         rdev->uvd.fw_header_present = true;
 154
 155                         family_id = (__force u32)(hdr->ucode_version) & 0xff;
 156                         version_major = (le32_to_cpu((__force __le32)(hdr->ucode_version))
 157                                                          >> 24) & 0xff;
 158                         version_minor = (le32_to_cpu((__force __le32)(hdr->ucode_version))
 159                                                          >> 8) & 0xff;
 160                         DRM_INFO("Found UVD firmware Version: %u.%u Family ID: %u\n",
 161                                  version_major, version_minor, family_id);
 162
 163                         /*
 164                          * Limit the number of UVD handles depending on
 165                          * microcode major and minor versions.
 166                          */
 167                         if ((version_major >= 0x01) && (version_minor >= 0x37))
 168                                 rdev->uvd.max_handles = RADEON_MAX_UVD_HANDLES;
 169                 }
 170         }
 171
 172         /*
 173          * In case there is only legacy firmware, or we encounter an error
 174          * while loading the new firmware, we fall back to loading the legacy
 175          * firmware now.
 176          */
 177         if (!fw_name || r) {
 178                 r = request_firmware(&rdev->uvd_fw, legacy_fw_name, rdev->dev);
 179                 if (r) {
 180                         dev_err(rdev->dev, "radeon_uvd: Can't load firmware \"%s\"\n",
 181                                 legacy_fw_name);
 182                         return r;
 183                 }
 184         }
 185
 186         bo_size = RADEON_GPU_PAGE_ALIGN(rdev->uvd_fw->size + 8) +
 187                   RADEON_UVD_STACK_SIZE + RADEON_UVD_HEAP_SIZE +
 188                   RADEON_UVD_SESSION_SIZE * rdev->uvd.max_handles;
 189         r = radeon_bo_create(rdev, bo_size, PAGE_SIZE, true,
 190                              RADEON_GEM_DOMAIN_VRAM, 0, NULL,
 191                              NULL, &rdev->uvd.vcpu_bo);
 192         if (r) {
 193                 dev_err(rdev->dev, "(%d) failed to allocate UVD bo\n", r);
 194                 return r;
 195         }
 196
 197         r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
 198         if (r) {
 199                 radeon_bo_unref(&rdev->uvd.vcpu_bo);
 200                 dev_err(rdev->dev, "(%d) failed to reserve UVD bo\n", r);
 201                 return r;
 202         }
 203
 204         r = radeon_bo_pin(rdev->uvd.vcpu_bo, RADEON_GEM_DOMAIN_VRAM,
 205                           &rdev->uvd.gpu_addr);
 206         if (r) {
 207                 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 208                 radeon_bo_unref(&rdev->uvd.vcpu_bo);
 209                 dev_err(rdev->dev, "(%d) UVD bo pin failed\n", r);
 210                 return r;
 211         }
 212
 213         r = radeon_bo_kmap(rdev->uvd.vcpu_bo, &rdev->uvd.cpu_addr);
 214         if (r) {
 215                 dev_err(rdev->dev, "(%d) UVD map failed\n", r);
 216                 return r;
 217         }
 218
 219         radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 220
 221         for (i = 0; i < rdev->uvd.max_handles; ++i) {
 222                 atomic_set(&rdev->uvd.handles[i], 0);
 223                 rdev->uvd.filp[i] = NULL;
 224                 rdev->uvd.img_size[i] = 0;
 225         }
 226
 227         return 0;
 228 }
 229
 230 void radeon_uvd_fini(struct radeon_device *rdev)
 231 {
 232         int r;
 233
 234         if (rdev->uvd.vcpu_bo == NULL)
 235                 return;
 236
 237         r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
 238         if (!r) {
 239                 radeon_bo_kunmap(rdev->uvd.vcpu_bo);
 240                 radeon_bo_unpin(rdev->uvd.vcpu_bo);
 241                 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 242         }
 243
 244         radeon_bo_unref(&rdev->uvd.vcpu_bo);
 245
 246         radeon_ring_fini(rdev, &rdev->ring[R600_RING_TYPE_UVD_INDEX]);
 247
 248         release_firmware(rdev->uvd_fw);
 249 }
 250
 251 int radeon_uvd_suspend(struct radeon_device *rdev)
 252 {
 253         int i, r;
 254
 255         if (rdev->uvd.vcpu_bo == NULL)
 256                 return 0;
 257
 258         for (i = 0; i < rdev->uvd.max_handles; ++i) {
 259                 uint32_t handle = atomic_read(&rdev->uvd.handles[i]);
 260                 if (handle != 0) {
 261                         struct radeon_fence *fence;
 262
 263                         radeon_uvd_note_usage(rdev);
 264
 265                         r = radeon_uvd_get_destroy_msg(rdev,
 266                                 R600_RING_TYPE_UVD_INDEX, handle, &fence);
 267                         if (r) {
 268                                 DRM_ERROR("Error destroying UVD (%d)!\n", r);
 269                                 continue;
 270                         }
 271
 272                         radeon_fence_wait(fence, false);
 273                         radeon_fence_unref(&fence);
 274
 275                         rdev->uvd.filp[i] = NULL;
 276                         atomic_set(&rdev->uvd.handles[i], 0);
 277                 }
 278         }
 279
 280         return 0;
 281 }
 282
 283 int radeon_uvd_resume(struct radeon_device *rdev)
 284 {
 285         unsigned size;
 286         void *ptr;
 287
 288         if (rdev->uvd.vcpu_bo == NULL)
 289                 return -EINVAL;
 290
 291         memcpy_toio((void __iomem *)rdev->uvd.cpu_addr, rdev->uvd_fw->data, rdev->uvd_fw->size);
 292
 293         size = radeon_bo_size(rdev->uvd.vcpu_bo);
 294         size -= rdev->uvd_fw->size;
 295
 296         ptr = rdev->uvd.cpu_addr;
 297         ptr += rdev->uvd_fw->size;
 298
 299         memset_io((void __iomem *)ptr, 0, size);
 300
 301         return 0;
 302 }
 303
 304 void radeon_uvd_force_into_uvd_segment(struct radeon_bo *rbo,
 305                                        uint32_t allowed_domains)
 306 {
 307         int i;
 308
 309         for (i = 0; i < rbo->placement.num_placement; ++i) {
 310                 rbo->placements[i].fpfn = 0 >> PAGE_SHIFT;
 311                 rbo->placements[i].lpfn = (256 * 1024 * 1024) >> PAGE_SHIFT;
 312         }
 313
 314         /* If it must be in VRAM it must be in the first segment as well */
 315         if (allowed_domains == RADEON_GEM_DOMAIN_VRAM)
 316                 return;
 317
 318         /* abort if we already have more than one placement */
 319         if (rbo->placement.num_placement > 1)
 320                 return;
 321
 322         /* add another 256MB segment */
 323         rbo->placements[1] = rbo->placements[0];
 324         rbo->placements[1].fpfn += (256 * 1024 * 1024) >> PAGE_SHIFT;
 325         rbo->placements[1].lpfn += (256 * 1024 * 1024) >> PAGE_SHIFT;
 326         rbo->placement.num_placement++;
 327 }
 328
 329 void radeon_uvd_free_handles(struct radeon_device *rdev, struct drm_file *filp)
 330 {
 331         int i, r;
 332         for (i = 0; i < rdev->uvd.max_handles; ++i) {
 333                 uint32_t handle = atomic_read(&rdev->uvd.handles[i]);
 334                 if (handle != 0 && rdev->uvd.filp[i] == filp) {
 335                         struct radeon_fence *fence;
 336
 337                         radeon_uvd_note_usage(rdev);
 338
 339                         r = radeon_uvd_get_destroy_msg(rdev,
 340                                 R600_RING_TYPE_UVD_INDEX, handle, &fence);
 341                         if (r) {
 342                                 DRM_ERROR("Error destroying UVD (%d)!\n", r);
 343                                 continue;
 344                         }
 345
 346                         radeon_fence_wait(fence, false);
 347                         radeon_fence_unref(&fence);
 348
 349                         rdev->uvd.filp[i] = NULL;
 350                         atomic_set(&rdev->uvd.handles[i], 0);
 351                 }
 352         }
 353 }
 354
 355 static int radeon_uvd_cs_msg_decode(uint32_t *msg, unsigned buf_sizes[])
 356 {
 357         unsigned stream_type = msg[4];
 358         unsigned width = msg[6];
 359         unsigned height = msg[7];
 360         unsigned dpb_size = msg[9];
 361         unsigned pitch = msg[28];
 362
 363         unsigned width_in_mb = width / 16;
 364         unsigned height_in_mb = ALIGN(height / 16, 2);
 365
 366         unsigned image_size, tmp, min_dpb_size;
 367
 368         image_size = width * height;
 369         image_size += image_size / 2;
 370         image_size = ALIGN(image_size, 1024);
 371
 372         switch (stream_type) {
 373         case 0: /* H264 */
 374
 375                 /* reference picture buffer */
 376                 min_dpb_size = image_size * 17;
 377
 378                 /* macroblock context buffer */
 379                 min_dpb_size += width_in_mb * height_in_mb * 17 * 192;
 380
 381                 /* IT surface buffer */
 382                 min_dpb_size += width_in_mb * height_in_mb * 32;
 383                 break;
 384
 385         case 1: /* VC1 */
 386
 387                 /* reference picture buffer */
 388                 min_dpb_size = image_size * 3;
 389
 390                 /* CONTEXT_BUFFER */
 391                 min_dpb_size += width_in_mb * height_in_mb * 128;
 392
 393                 /* IT surface buffer */
 394                 min_dpb_size += width_in_mb * 64;
 395
 396                 /* DB surface buffer */
 397                 min_dpb_size += width_in_mb * 128;
 398
 399                 /* BP */
 400                 tmp = max(width_in_mb, height_in_mb);
 401                 min_dpb_size += ALIGN(tmp * 7 * 16, 64);
 402                 break;
 403
 404         case 3: /* MPEG2 */
 405
 406                 /* reference picture buffer */
 407                 min_dpb_size = image_size * 3;
 408                 break;
 409
 410         case 4: /* MPEG4 */
 411
 412                 /* reference picture buffer */
 413                 min_dpb_size = image_size * 3;
 414
 415                 /* CM */
 416                 min_dpb_size += width_in_mb * height_in_mb * 64;
 417
 418                 /* IT surface buffer */
 419                 min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64);
 420                 break;
 421
 422         default:
 423                 DRM_ERROR("UVD codec not handled %d!\n", stream_type);
 424                 return -EINVAL;
 425         }
 426
 427         if (width > pitch) {
 428                 DRM_ERROR("Invalid UVD decoding target pitch!\n");
 429                 return -EINVAL;
 430         }
 431
 432         if (dpb_size < min_dpb_size) {
 433                 DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n",
 434                           dpb_size, min_dpb_size);
 435                 return -EINVAL;
 436         }
 437
 438         buf_sizes[0x1] = dpb_size;
 439         buf_sizes[0x2] = image_size;
 440         return 0;
 441 }
 442
 443 static int radeon_uvd_validate_codec(struct radeon_cs_parser *p,
 444                                      unsigned stream_type)
 445 {
 446         switch (stream_type) {
 447         case 0: /* H264 */
 448         case 1: /* VC1 */
 449                 /* always supported */
 450                 return 0;
 451
 452         case 3: /* MPEG2 */
 453         case 4: /* MPEG4 */
 454                 /* only since UVD 3 */
 455                 if (p->rdev->family >= CHIP_PALM)
 456                         return 0;
 457
 458                 fallthrough;
 459         default:
 460                 DRM_ERROR("UVD codec not supported by hardware %d!\n",
 461                           stream_type);
 462                 return -EINVAL;
 463         }
 464 }
 465
 466 static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
 467                              unsigned offset, unsigned buf_sizes[])
 468 {
 469         int32_t *msg, msg_type, handle;
 470         unsigned img_size = 0;
 471         void *ptr;
 472         int i, r;
 473
 474         if (offset & 0x3F) {
 475                 DRM_ERROR("UVD messages must be 64 byte aligned!\n");
 476                 return -EINVAL;
 477         }
 478
 479         r = radeon_bo_kmap(bo, &ptr);
 480         if (r) {
 481                 DRM_ERROR("Failed mapping the UVD message (%d)!\n", r);
 482                 return r;
 483         }
 484
 485         msg = ptr + offset;
 486
 487         msg_type = msg[1];
 488         handle = msg[2];
 489
 490         if (handle == 0) {
 491                 radeon_bo_kunmap(bo);
 492                 DRM_ERROR("Invalid UVD handle!\n");
 493                 return -EINVAL;
 494         }
 495
 496         switch (msg_type) {
 497         case 0:
 498                 /* it's a create msg, calc image size (width * height) */
 499                 img_size = msg[7] * msg[8];
 500
 501                 r = radeon_uvd_validate_codec(p, msg[4]);
 502                 radeon_bo_kunmap(bo);
 503                 if (r)
 504                         return r;
 505
 506                 /* try to alloc a new handle */
 507                 for (i = 0; i < p->rdev->uvd.max_handles; ++i) {
 508                         if (atomic_read(&p->rdev->uvd.handles[i]) == handle) {
 509                                 DRM_ERROR("Handle 0x%x already in use!\n", handle);
 510                                 return -EINVAL;
 511                         }
 512
 513                         if (!atomic_cmpxchg(&p->rdev->uvd.handles[i], 0, handle)) {
 514                                 p->rdev->uvd.filp[i] = p->filp;
 515                                 p->rdev->uvd.img_size[i] = img_size;
 516                                 return 0;
 517                         }
 518                 }
 519
 520                 DRM_ERROR("No more free UVD handles!\n");
 521                 return -EINVAL;
 522
 523         case 1:
 524                 /* it's a decode msg, validate codec and calc buffer sizes */
 525                 r = radeon_uvd_validate_codec(p, msg[4]);
 526                 if (!r)
 527                         r = radeon_uvd_cs_msg_decode(msg, buf_sizes);
 528                 radeon_bo_kunmap(bo);
 529                 if (r)
 530                         return r;
 531
 532                 /* validate the handle */
 533                 for (i = 0; i < p->rdev->uvd.max_handles; ++i) {
 534                         if (atomic_read(&p->rdev->uvd.handles[i]) == handle) {
 535                                 if (p->rdev->uvd.filp[i] != p->filp) {
 536                                         DRM_ERROR("UVD handle collision detected!\n");
 537                                         return -EINVAL;
 538                                 }
 539                                 return 0;
 540                         }
 541                 }
 542
 543                 DRM_ERROR("Invalid UVD handle 0x%x!\n", handle);
 544                 return -ENOENT;
 545
 546         case 2:
 547                 /* it's a destroy msg, free the handle */
 548                 for (i = 0; i < p->rdev->uvd.max_handles; ++i)
 549                         atomic_cmpxchg(&p->rdev->uvd.handles[i], handle, 0);
 550                 radeon_bo_kunmap(bo);
 551                 return 0;
 552
 553         default:
 554                 DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
 555         }
 556
 557         radeon_bo_kunmap(bo);
 558         return -EINVAL;
 559 }
 560
 561 static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p,
 562                                int data0, int data1,
 563                                unsigned buf_sizes[], bool *has_msg_cmd)
 564 {
 565         struct radeon_cs_chunk *relocs_chunk;
 566         struct radeon_bo_list *reloc;
 567         unsigned idx, cmd, offset;
 568         uint64_t start, end;
 569         int r;
 570
 571         relocs_chunk = p->chunk_relocs;
 572         offset = radeon_get_ib_value(p, data0);
 573         idx = radeon_get_ib_value(p, data1);
 574         if (idx >= relocs_chunk->length_dw) {
 575                 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
 576                           idx, relocs_chunk->length_dw);
 577                 return -EINVAL;
 578         }
 579
 580         reloc = &p->relocs[(idx / 4)];
 581         start = reloc->gpu_offset;
 582         end = start + radeon_bo_size(reloc->robj);
 583         start += offset;
 584
 585         p->ib.ptr[data0] = start & 0xFFFFFFFF;
 586         p->ib.ptr[data1] = start >> 32;
 587
 588         cmd = radeon_get_ib_value(p, p->idx) >> 1;
 589
 590         if (cmd < 0x4) {
 591                 if (end <= start) {
 592                         DRM_ERROR("invalid reloc offset %X!\n", offset);
 593                         return -EINVAL;
 594                 }
 595                 if ((end - start) < buf_sizes[cmd]) {
 596                         DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
 597                                   (unsigned)(end - start), buf_sizes[cmd]);
 598                         return -EINVAL;
 599                 }
 600
 601         } else if (cmd != 0x100) {
 602                 DRM_ERROR("invalid UVD command %X!\n", cmd);
 603                 return -EINVAL;
 604         }
 605
 606         if ((start >> 28) != ((end - 1) >> 28)) {
 607                 DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
 608                           start, end);
 609                 return -EINVAL;
 610         }
 611
 612         /* TODO: is this still necessary on NI+ ? */
 613         if ((cmd == 0 || cmd == 0x3) &&
 614             (start >> 28) != (p->rdev->uvd.gpu_addr >> 28)) {
 615                 DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n",
 616                           start, end);
 617                 return -EINVAL;
 618         }
 619
 620         if (cmd == 0) {
 621                 if (*has_msg_cmd) {
 622                         DRM_ERROR("More than one message in a UVD-IB!\n");
 623                         return -EINVAL;
 624                 }
 625                 *has_msg_cmd = true;
 626                 r = radeon_uvd_cs_msg(p, reloc->robj, offset, buf_sizes);
 627                 if (r)
 628                         return r;
 629         } else if (!*has_msg_cmd) {
 630                 DRM_ERROR("Message needed before other commands are send!\n");
 631                 return -EINVAL;
 632         }
 633
 634         return 0;
 635 }
 636
 637 static int radeon_uvd_cs_reg(struct radeon_cs_parser *p,
 638                              struct radeon_cs_packet *pkt,
 639                              int *data0, int *data1,
 640                              unsigned buf_sizes[],
 641                              bool *has_msg_cmd)
 642 {
 643         int i, r;
 644
 645         p->idx++;
 646         for (i = 0; i <= pkt->count; ++i) {
 647                 switch (pkt->reg + i*4) {
 648                 case UVD_GPCOM_VCPU_DATA0:
 649                         *data0 = p->idx;
 650                         break;
 651                 case UVD_GPCOM_VCPU_DATA1:
 652                         *data1 = p->idx;
 653                         break;
 654                 case UVD_GPCOM_VCPU_CMD:
 655                         r = radeon_uvd_cs_reloc(p, *data0, *data1,
 656                                                 buf_sizes, has_msg_cmd);
 657                         if (r)
 658                                 return r;
 659                         break;
 660                 case UVD_ENGINE_CNTL:
 661                 case UVD_NO_OP:
 662                         break;
 663                 default:
 664                         DRM_ERROR("Invalid reg 0x%X!\n",
 665                                   pkt->reg + i*4);
 666                         return -EINVAL;
 667                 }
 668                 p->idx++;
 669         }
 670         return 0;
 671 }
 672
 673 int radeon_uvd_cs_parse(struct radeon_cs_parser *p)
 674 {
 675         struct radeon_cs_packet pkt;
 676         int r, data0 = 0, data1 = 0;
 677
 678         /* does the IB has a msg command */
 679         bool has_msg_cmd = false;
 680
 681         /* minimum buffer sizes */
 682         unsigned buf_sizes[] = {
 683                 [0x00000000]    =       2048,
 684                 [0x00000001]    =       32 * 1024 * 1024,
 685                 [0x00000002]    =       2048 * 1152 * 3,
 686                 [0x00000003]    =       2048,
 687         };
 688
 689         if (p->chunk_ib->length_dw % 16) {
 690                 DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n",
 691                           p->chunk_ib->length_dw);
 692                 return -EINVAL;
 693         }
 694
 695         if (p->chunk_relocs == NULL) {
 696                 DRM_ERROR("No relocation chunk !\n");
 697                 return -EINVAL;
 698         }
 699
 700
 701         do {
 702                 r = radeon_cs_packet_parse(p, &pkt, p->idx);
 703                 if (r)
 704                         return r;
 705                 switch (pkt.type) {
 706                 case RADEON_PACKET_TYPE0:
 707                         r = radeon_uvd_cs_reg(p, &pkt, &data0, &data1,
 708                                               buf_sizes, &has_msg_cmd);
 709                         if (r)
 710                                 return r;
 711                         break;
 712                 case RADEON_PACKET_TYPE2:
 713                         p->idx += pkt.count + 2;
 714                         break;
 715                 default:
 716                         DRM_ERROR("Unknown packet type %d !\n", pkt.type);
 717                         return -EINVAL;
 718                 }
 719         } while (p->idx < p->chunk_ib->length_dw);
 720
 721         if (!has_msg_cmd) {
 722                 DRM_ERROR("UVD-IBs need a msg command!\n");
 723                 return -EINVAL;
 724         }
 725
 726         return 0;
 727 }
 728
 729 static int radeon_uvd_send_msg(struct radeon_device *rdev,
 730                                int ring, uint64_t addr,
 731                                struct radeon_fence **fence)
 732 {
 733         struct radeon_ib ib;
 734         int i, r;
 735
 736         r = radeon_ib_get(rdev, ring, &ib, NULL, 64);
 737         if (r)
 738                 return r;
 739
 740         ib.ptr[0] = PACKET0(UVD_GPCOM_VCPU_DATA0, 0);
 741         ib.ptr[1] = addr;
 742         ib.ptr[2] = PACKET0(UVD_GPCOM_VCPU_DATA1, 0);
 743         ib.ptr[3] = addr >> 32;
 744         ib.ptr[4] = PACKET0(UVD_GPCOM_VCPU_CMD, 0);
 745         ib.ptr[5] = 0;
 746         for (i = 6; i < 16; i += 2) {
 747                 ib.ptr[i] = PACKET0(UVD_NO_OP, 0);
 748                 ib.ptr[i+1] = 0;
 749         }
 750         ib.length_dw = 16;
 751
 752         r = radeon_ib_schedule(rdev, &ib, NULL, false);
 753
 754         if (fence)
 755                 *fence = radeon_fence_ref(ib.fence);
 756
 757         radeon_ib_free(rdev, &ib);
 758         return r;
 759 }
 760
 761 /*
 762  * multiple fence commands without any stream commands in between can
 763  * crash the vcpu so just try to emmit a dummy create/destroy msg to
 764  * avoid this
 765  */
 766 int radeon_uvd_get_create_msg(struct radeon_device *rdev, int ring,
 767                               uint32_t handle, struct radeon_fence **fence)
 768 {
 769         /* we use the last page of the vcpu bo for the UVD message */
 770         uint64_t offs = radeon_bo_size(rdev->uvd.vcpu_bo) -
 771                 RADEON_GPU_PAGE_SIZE;
 772
 773         uint32_t __iomem *msg = (void __iomem *)(rdev->uvd.cpu_addr + offs);
 774         uint64_t addr = rdev->uvd.gpu_addr + offs;
 775
 776         int r, i;
 777
 778         r = radeon_bo_reserve(rdev->uvd.vcpu_bo, true);
 779         if (r)
 780                 return r;
 781
 782         /* stitch together an UVD create msg */
 783         writel((__force u32)cpu_to_le32(0x00000de4), &msg[0]);
 784         writel(0x0, (void __iomem *)&msg[1]);
 785         writel((__force u32)cpu_to_le32(handle), &msg[2]);
 786         writel(0x0, &msg[3]);
 787         writel(0x0, &msg[4]);
 788         writel(0x0, &msg[5]);
 789         writel(0x0, &msg[6]);
 790         writel((__force u32)cpu_to_le32(0x00000780), &msg[7]);
 791         writel((__force u32)cpu_to_le32(0x00000440), &msg[8]);
 792         writel(0x0, &msg[9]);
 793         writel((__force u32)cpu_to_le32(0x01b37000), &msg[10]);
 794         for (i = 11; i < 1024; ++i)
 795                 writel(0x0, &msg[i]);
 796
 797         r = radeon_uvd_send_msg(rdev, ring, addr, fence);
 798         radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 799         return r;
 800 }
 801
 802 int radeon_uvd_get_destroy_msg(struct radeon_device *rdev, int ring,
 803                                uint32_t handle, struct radeon_fence **fence)
 804 {
 805         /* we use the last page of the vcpu bo for the UVD message */
 806         uint64_t offs = radeon_bo_size(rdev->uvd.vcpu_bo) -
 807                 RADEON_GPU_PAGE_SIZE;
 808
 809         uint32_t __iomem *msg = (void __iomem *)(rdev->uvd.cpu_addr + offs);
 810         uint64_t addr = rdev->uvd.gpu_addr + offs;
 811
 812         int r, i;
 813
 814         r = radeon_bo_reserve(rdev->uvd.vcpu_bo, true);
 815         if (r)
 816                 return r;
 817
 818         /* stitch together an UVD destroy msg */
 819         writel((__force u32)cpu_to_le32(0x00000de4), &msg[0]);
 820         writel((__force u32)cpu_to_le32(0x00000002), &msg[1]);
 821         writel((__force u32)cpu_to_le32(handle), &msg[2]);
 822         writel(0x0, &msg[3]);
 823         for (i = 4; i < 1024; ++i)
 824                 writel(0x0, &msg[i]);
 825
 826         r = radeon_uvd_send_msg(rdev, ring, addr, fence);
 827         radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 828         return r;
 829 }
 830
 831 /**
 832  * radeon_uvd_count_handles - count number of open streams
 833  *
 834  * @rdev: radeon_device pointer
 835  * @sd: number of SD streams
 836  * @hd: number of HD streams
 837  *
 838  * Count the number of open SD/HD streams as a hint for power mangement
 839  */
 840 static void radeon_uvd_count_handles(struct radeon_device *rdev,
 841                                      unsigned *sd, unsigned *hd)
 842 {
 843         unsigned i;
 844
 845         *sd = 0;
 846         *hd = 0;
 847
 848         for (i = 0; i < rdev->uvd.max_handles; ++i) {
 849                 if (!atomic_read(&rdev->uvd.handles[i]))
 850                         continue;
 851
 852                 if (rdev->uvd.img_size[i] >= 720*576)
 853                         ++(*hd);
 854                 else
 855                         ++(*sd);
 856         }
 857 }
 858
 859 static void radeon_uvd_idle_work_handler(struct work_struct *work)
 860 {
 861         struct radeon_device *rdev =
 862                 container_of(work, struct radeon_device, uvd.idle_work.work);
 863
 864         if (radeon_fence_count_emitted(rdev, R600_RING_TYPE_UVD_INDEX) == 0) {
 865                 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
 866                         radeon_uvd_count_handles(rdev, &rdev->pm.dpm.sd,
 867                                                  &rdev->pm.dpm.hd);
 868                         radeon_dpm_enable_uvd(rdev, false);
 869                 } else {
 870                         radeon_set_uvd_clocks(rdev, 0, 0);
 871                 }
 872         } else {
 873                 schedule_delayed_work(&rdev->uvd.idle_work,
 874                                       msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
 875         }
 876 }
 877
 878 void radeon_uvd_note_usage(struct radeon_device *rdev)
 879 {
 880         bool streams_changed = false;
 881         bool set_clocks = !cancel_delayed_work_sync(&rdev->uvd.idle_work);
 882         set_clocks &= schedule_delayed_work(&rdev->uvd.idle_work,
 883                                             msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
 884
 885         if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
 886                 unsigned hd = 0, sd = 0;
 887                 radeon_uvd_count_handles(rdev, &sd, &hd);
 888                 if ((rdev->pm.dpm.sd != sd) ||
 889                     (rdev->pm.dpm.hd != hd)) {
 890                         rdev->pm.dpm.sd = sd;
 891                         rdev->pm.dpm.hd = hd;
 892                         /* disable this for now */
 893                         /*streams_changed = true;*/
 894                 }
 895         }
 896
 897         if (set_clocks || streams_changed) {
 898                 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
 899                         radeon_dpm_enable_uvd(rdev, true);
 900                 } else {
 901                         radeon_set_uvd_clocks(rdev, 53300, 40000);
 902                 }
 903         }
 904 }
 905
 906 static unsigned radeon_uvd_calc_upll_post_div(unsigned vco_freq,
 907                                               unsigned target_freq,
 908                                               unsigned pd_min,
 909                                               unsigned pd_even)
 910 {
 911         unsigned post_div = vco_freq / target_freq;
 912
 913         /* adjust to post divider minimum value */
 914         if (post_div < pd_min)
 915                 post_div = pd_min;
 916
 917         /* we alway need a frequency less than or equal the target */
 918         if ((vco_freq / post_div) > target_freq)
 919                 post_div += 1;
 920
 921         /* post dividers above a certain value must be even */
 922         if (post_div > pd_even && post_div % 2)
 923                 post_div += 1;
 924
 925         return post_div;
 926 }
 927
 928 /**
 929  * radeon_uvd_calc_upll_dividers - calc UPLL clock dividers
 930  *
 931  * @rdev: radeon_device pointer
 932  * @vclk: wanted VCLK
 933  * @dclk: wanted DCLK
 934  * @vco_min: minimum VCO frequency
 935  * @vco_max: maximum VCO frequency
 936  * @fb_factor: factor to multiply vco freq with
 937  * @fb_mask: limit and bitmask for feedback divider
 938  * @pd_min: post divider minimum
 939  * @pd_max: post divider maximum
 940  * @pd_even: post divider must be even above this value
 941  * @optimal_fb_div: resulting feedback divider
 942  * @optimal_vclk_div: resulting vclk post divider
 943  * @optimal_dclk_div: resulting dclk post divider
 944  *
 945  * Calculate dividers for UVDs UPLL (R6xx-SI, except APUs).
 946  * Returns zero on success -EINVAL on error.
 947  */
 948 int radeon_uvd_calc_upll_dividers(struct radeon_device *rdev,
 949                                   unsigned vclk, unsigned dclk,
 950                                   unsigned vco_min, unsigned vco_max,
 951                                   unsigned fb_factor, unsigned fb_mask,
 952                                   unsigned pd_min, unsigned pd_max,
 953                                   unsigned pd_even,
 954                                   unsigned *optimal_fb_div,
 955                                   unsigned *optimal_vclk_div,
 956                                   unsigned *optimal_dclk_div)
 957 {
 958         unsigned vco_freq, ref_freq = rdev->clock.spll.reference_freq;
 959
 960         /* start off with something large */
 961         unsigned optimal_score = ~0;
 962
 963         /* loop through vco from low to high */
 964         vco_min = max(max(vco_min, vclk), dclk);
 965         for (vco_freq = vco_min; vco_freq <= vco_max; vco_freq += 100) {
 966
 967                 uint64_t fb_div = (uint64_t)vco_freq * fb_factor;
 968                 unsigned vclk_div, dclk_div, score;
 969
 970                 do_div(fb_div, ref_freq);
 971
 972                 /* fb div out of range ? */
 973                 if (fb_div > fb_mask)
 974                         break; /* it can oly get worse */
 975
 976                 fb_div &= fb_mask;
 977
 978                 /* calc vclk divider with current vco freq */
 979                 vclk_div = radeon_uvd_calc_upll_post_div(vco_freq, vclk,
 980                                                          pd_min, pd_even);
 981                 if (vclk_div > pd_max)
 982                         break; /* vco is too big, it has to stop */
 983
 984                 /* calc dclk divider with current vco freq */
 985                 dclk_div = radeon_uvd_calc_upll_post_div(vco_freq, dclk,
 986                                                          pd_min, pd_even);
 987                 if (dclk_div > pd_max)
 988                         break; /* vco is too big, it has to stop */
 989
 990                 /* calc score with current vco freq */
 991                 score = vclk - (vco_freq / vclk_div) + dclk - (vco_freq / dclk_div);
 992
 993                 /* determine if this vco setting is better than current optimal settings */
 994                 if (score < optimal_score) {
 995                         *optimal_fb_div = fb_div;
 996                         *optimal_vclk_div = vclk_div;
 997                         *optimal_dclk_div = dclk_div;
 998                         optimal_score = score;
 999                         if (optimal_score == 0)
1000                                 break; /* it can't get better than this */
1001                 }
1002         }
1003
1004         /* did we found a valid setup ? */
1005         if (optimal_score == ~0)
1006                 return -EINVAL;
1007
1008         return 0;
1009 }
1010
1011 int radeon_uvd_send_upll_ctlreq(struct radeon_device *rdev,
1012                                 unsigned cg_upll_func_cntl)
1013 {
1014         unsigned i;
1015
1016         /* make sure UPLL_CTLREQ is deasserted */
1017         WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
1018
1019         mdelay(10);
1020
1021         /* assert UPLL_CTLREQ */
1022         WREG32_P(cg_upll_func_cntl, UPLL_CTLREQ_MASK, ~UPLL_CTLREQ_MASK);
1023
1024         /* wait for CTLACK and CTLACK2 to get asserted */
1025         for (i = 0; i < 100; ++i) {
1026                 uint32_t mask = UPLL_CTLACK_MASK | UPLL_CTLACK2_MASK;
1027                 if ((RREG32(cg_upll_func_cntl) & mask) == mask)
1028                         break;
1029                 mdelay(10);
1030         }
1031
1032         /* deassert UPLL_CTLREQ */
1033         WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
1034
1035         if (i == 100) {
1036                 DRM_ERROR("Timeout setting UVD clocks!\n");
1037                 return -ETIMEDOUT;
1038         }
1039
1040         return 0;
1041 }