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_R600           "radeon/R600_uvd.bin"
  44 #define FIRMWARE_RS780          "radeon/RS780_uvd.bin"
  45 #define FIRMWARE_RV770          "radeon/RV770_uvd.bin"
  46 #define FIRMWARE_RV710          "radeon/RV710_uvd.bin"
  47 #define FIRMWARE_CYPRESS        "radeon/CYPRESS_uvd.bin"
  48 #define FIRMWARE_SUMO           "radeon/SUMO_uvd.bin"
  49 #define FIRMWARE_TAHITI         "radeon/TAHITI_uvd.bin"
  50 #define FIRMWARE_BONAIRE        "radeon/BONAIRE_uvd.bin"
  51
  52 MODULE_FIRMWARE(FIRMWARE_R600);
  53 MODULE_FIRMWARE(FIRMWARE_RS780);
  54 MODULE_FIRMWARE(FIRMWARE_RV770);
  55 MODULE_FIRMWARE(FIRMWARE_RV710);
  56 MODULE_FIRMWARE(FIRMWARE_CYPRESS);
  57 MODULE_FIRMWARE(FIRMWARE_SUMO);
  58 MODULE_FIRMWARE(FIRMWARE_TAHITI);
  59 MODULE_FIRMWARE(FIRMWARE_BONAIRE);
  60
  61 static void radeon_uvd_idle_work_handler(struct work_struct *work);
  62
  63 int radeon_uvd_init(struct radeon_device *rdev)
  64 {
  65         unsigned long bo_size;
  66         const char *fw_name;
  67         int i, r;
  68
  69         INIT_DELAYED_WORK(&rdev->uvd.idle_work, radeon_uvd_idle_work_handler);
  70
  71         switch (rdev->family) {
  72         case CHIP_RV610:
  73         case CHIP_RV630:
  74         case CHIP_RV670:
  75         case CHIP_RV620:
  76         case CHIP_RV635:
  77                 fw_name = FIRMWARE_R600;
  78                 break;
  79
  80         case CHIP_RS780:
  81         case CHIP_RS880:
  82                 fw_name = FIRMWARE_RS780;
  83                 break;
  84
  85         case CHIP_RV770:
  86                 fw_name = FIRMWARE_RV770;
  87                 break;
  88
  89         case CHIP_RV710:
  90         case CHIP_RV730:
  91         case CHIP_RV740:
  92                 fw_name = FIRMWARE_RV710;
  93                 break;
  94
  95         case CHIP_CYPRESS:
  96         case CHIP_HEMLOCK:
  97         case CHIP_JUNIPER:
  98         case CHIP_REDWOOD:
  99         case CHIP_CEDAR:
 100                 fw_name = FIRMWARE_CYPRESS;
 101                 break;
 102
 103         case CHIP_SUMO:
 104         case CHIP_SUMO2:
 105         case CHIP_PALM:
 106         case CHIP_CAYMAN:
 107         case CHIP_BARTS:
 108         case CHIP_TURKS:
 109         case CHIP_CAICOS:
 110                 fw_name = FIRMWARE_SUMO;
 111                 break;
 112
 113         case CHIP_TAHITI:
 114         case CHIP_VERDE:
 115         case CHIP_PITCAIRN:
 116         case CHIP_ARUBA:
 117         case CHIP_OLAND:
 118                 fw_name = FIRMWARE_TAHITI;
 119                 break;
 120
 121         case CHIP_BONAIRE:
 122         case CHIP_KABINI:
 123         case CHIP_KAVERI:
 124         case CHIP_HAWAII:
 125         case CHIP_MULLINS:
 126                 fw_name = FIRMWARE_BONAIRE;
 127                 break;
 128
 129         default:
 130                 return -EINVAL;
 131         }
 132
 133         r = request_firmware(&rdev->uvd_fw, fw_name, rdev->dev);
 134         if (r) {
 135                 dev_err(rdev->dev, "radeon_uvd: Can't load firmware \"%s\"\n",
 136                         fw_name);
 137                 return r;
 138         }
 139
 140         bo_size = RADEON_GPU_PAGE_ALIGN(rdev->uvd_fw->size + 8) +
 141                   RADEON_UVD_STACK_SIZE + RADEON_UVD_HEAP_SIZE +
 142                   RADEON_GPU_PAGE_SIZE;
 143         r = radeon_bo_create(rdev, bo_size, PAGE_SIZE, true,
 144                              RADEON_GEM_DOMAIN_VRAM, 0, NULL,
 145                              NULL, &rdev->uvd.vcpu_bo);
 146         if (r) {
 147                 dev_err(rdev->dev, "(%d) failed to allocate UVD bo\n", r);
 148                 return r;
 149         }
 150
 151         r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
 152         if (r) {
 153                 radeon_bo_unref(&rdev->uvd.vcpu_bo);
 154                 dev_err(rdev->dev, "(%d) failed to reserve UVD bo\n", r);
 155                 return r;
 156         }
 157
 158         r = radeon_bo_pin(rdev->uvd.vcpu_bo, RADEON_GEM_DOMAIN_VRAM,
 159                           &rdev->uvd.gpu_addr);
 160         if (r) {
 161                 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 162                 radeon_bo_unref(&rdev->uvd.vcpu_bo);
 163                 dev_err(rdev->dev, "(%d) UVD bo pin failed\n", r);
 164                 return r;
 165         }
 166
 167         r = radeon_bo_kmap(rdev->uvd.vcpu_bo, &rdev->uvd.cpu_addr);
 168         if (r) {
 169                 dev_err(rdev->dev, "(%d) UVD map failed\n", r);
 170                 return r;
 171         }
 172
 173         radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 174
 175         for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
 176                 atomic_set(&rdev->uvd.handles[i], 0);
 177                 rdev->uvd.filp[i] = NULL;
 178                 rdev->uvd.img_size[i] = 0;
 179         }
 180
 181         return 0;
 182 }
 183
 184 void radeon_uvd_fini(struct radeon_device *rdev)
 185 {
 186         int r;
 187
 188         if (rdev->uvd.vcpu_bo == NULL)
 189                 return;
 190
 191         r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
 192         if (!r) {
 193                 radeon_bo_kunmap(rdev->uvd.vcpu_bo);
 194                 radeon_bo_unpin(rdev->uvd.vcpu_bo);
 195                 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 196         }
 197
 198         radeon_bo_unref(&rdev->uvd.vcpu_bo);
 199
 200         radeon_ring_fini(rdev, &rdev->ring[R600_RING_TYPE_UVD_INDEX]);
 201
 202         release_firmware(rdev->uvd_fw);
 203 }
 204
 205 int radeon_uvd_suspend(struct radeon_device *rdev)
 206 {
 207         int i, r;
 208
 209         if (rdev->uvd.vcpu_bo == NULL)
 210                 return 0;
 211
 212         for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
 213                 uint32_t handle = atomic_read(&rdev->uvd.handles[i]);
 214                 if (handle != 0) {
 215                         struct radeon_fence *fence;
 216
 217                         radeon_uvd_note_usage(rdev);
 218
 219                         r = radeon_uvd_get_destroy_msg(rdev,
 220                                 R600_RING_TYPE_UVD_INDEX, handle, &fence);
 221                         if (r) {
 222                                 DRM_ERROR("Error destroying UVD (%d)!\n", r);
 223                                 continue;
 224                         }
 225
 226                         radeon_fence_wait(fence, false);
 227                         radeon_fence_unref(&fence);
 228
 229                         rdev->uvd.filp[i] = NULL;
 230                         atomic_set(&rdev->uvd.handles[i], 0);
 231                 }
 232         }
 233
 234         return 0;
 235 }
 236
 237 int radeon_uvd_resume(struct radeon_device *rdev)
 238 {
 239         unsigned size;
 240         void *ptr;
 241
 242         if (rdev->uvd.vcpu_bo == NULL)
 243                 return -EINVAL;
 244
 245         memcpy(rdev->uvd.cpu_addr, rdev->uvd_fw->data, rdev->uvd_fw->size);
 246
 247         size = radeon_bo_size(rdev->uvd.vcpu_bo);
 248         size -= rdev->uvd_fw->size;
 249
 250         ptr = rdev->uvd.cpu_addr;
 251         ptr += rdev->uvd_fw->size;
 252
 253         memset(ptr, 0, size);
 254
 255         return 0;
 256 }
 257
 258 void radeon_uvd_force_into_uvd_segment(struct radeon_bo *rbo,
 259                                        uint32_t allowed_domains)
 260 {
 261         int i;
 262
 263         for (i = 0; i < rbo->placement.num_placement; ++i) {
 264                 rbo->placements[i].fpfn = 0 >> PAGE_SHIFT;
 265                 rbo->placements[i].lpfn = (256 * 1024 * 1024) >> PAGE_SHIFT;
 266         }
 267
 268         /* If it must be in VRAM it must be in the first segment as well */
 269         if (allowed_domains == RADEON_GEM_DOMAIN_VRAM)
 270                 return;
 271
 272         /* abort if we already have more than one placement */
 273         if (rbo->placement.num_placement > 1)
 274                 return;
 275
 276         /* add another 256MB segment */
 277         rbo->placements[1] = rbo->placements[0];
 278         rbo->placements[1].fpfn += (256 * 1024 * 1024) >> PAGE_SHIFT;
 279         rbo->placements[1].lpfn += (256 * 1024 * 1024) >> PAGE_SHIFT;
 280         rbo->placement.num_placement++;
 281         rbo->placement.num_busy_placement++;
 282 }
 283
 284 void radeon_uvd_free_handles(struct radeon_device *rdev, struct drm_file *filp)
 285 {
 286         int i, r;
 287         for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
 288                 uint32_t handle = atomic_read(&rdev->uvd.handles[i]);
 289                 if (handle != 0 && rdev->uvd.filp[i] == filp) {
 290                         struct radeon_fence *fence;
 291
 292                         radeon_uvd_note_usage(rdev);
 293
 294                         r = radeon_uvd_get_destroy_msg(rdev,
 295                                 R600_RING_TYPE_UVD_INDEX, handle, &fence);
 296                         if (r) {
 297                                 DRM_ERROR("Error destroying UVD (%d)!\n", r);
 298                                 continue;
 299                         }
 300
 301                         radeon_fence_wait(fence, false);
 302                         radeon_fence_unref(&fence);
 303
 304                         rdev->uvd.filp[i] = NULL;
 305                         atomic_set(&rdev->uvd.handles[i], 0);
 306                 }
 307         }
 308 }
 309
 310 static int radeon_uvd_cs_msg_decode(uint32_t *msg, unsigned buf_sizes[])
 311 {
 312         unsigned stream_type = msg[4];
 313         unsigned width = msg[6];
 314         unsigned height = msg[7];
 315         unsigned dpb_size = msg[9];
 316         unsigned pitch = msg[28];
 317
 318         unsigned width_in_mb = width / 16;
 319         unsigned height_in_mb = ALIGN(height / 16, 2);
 320
 321         unsigned image_size, tmp, min_dpb_size;
 322
 323         image_size = width * height;
 324         image_size += image_size / 2;
 325         image_size = ALIGN(image_size, 1024);
 326
 327         switch (stream_type) {
 328         case 0: /* H264 */
 329
 330                 /* reference picture buffer */
 331                 min_dpb_size = image_size * 17;
 332
 333                 /* macroblock context buffer */
 334                 min_dpb_size += width_in_mb * height_in_mb * 17 * 192;
 335
 336                 /* IT surface buffer */
 337                 min_dpb_size += width_in_mb * height_in_mb * 32;
 338                 break;
 339
 340         case 1: /* VC1 */
 341
 342                 /* reference picture buffer */
 343                 min_dpb_size = image_size * 3;
 344
 345                 /* CONTEXT_BUFFER */
 346                 min_dpb_size += width_in_mb * height_in_mb * 128;
 347
 348                 /* IT surface buffer */
 349                 min_dpb_size += width_in_mb * 64;
 350
 351                 /* DB surface buffer */
 352                 min_dpb_size += width_in_mb * 128;
 353
 354                 /* BP */
 355                 tmp = max(width_in_mb, height_in_mb);
 356                 min_dpb_size += ALIGN(tmp * 7 * 16, 64);
 357                 break;
 358
 359         case 3: /* MPEG2 */
 360
 361                 /* reference picture buffer */
 362                 min_dpb_size = image_size * 3;
 363                 break;
 364
 365         case 4: /* MPEG4 */
 366
 367                 /* reference picture buffer */
 368                 min_dpb_size = image_size * 3;
 369
 370                 /* CM */
 371                 min_dpb_size += width_in_mb * height_in_mb * 64;
 372
 373                 /* IT surface buffer */
 374                 min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64);
 375                 break;
 376
 377         default:
 378                 DRM_ERROR("UVD codec not handled %d!\n", stream_type);
 379                 return -EINVAL;
 380         }
 381
 382         if (width > pitch) {
 383                 DRM_ERROR("Invalid UVD decoding target pitch!\n");
 384                 return -EINVAL;
 385         }
 386
 387         if (dpb_size < min_dpb_size) {
 388                 DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n",
 389                           dpb_size, min_dpb_size);
 390                 return -EINVAL;
 391         }
 392
 393         buf_sizes[0x1] = dpb_size;
 394         buf_sizes[0x2] = image_size;
 395         return 0;
 396 }
 397
 398 static int radeon_uvd_validate_codec(struct radeon_cs_parser *p,
 399                                      unsigned stream_type)
 400 {
 401         switch (stream_type) {
 402         case 0: /* H264 */
 403         case 1: /* VC1 */
 404                 /* always supported */
 405                 return 0;
 406
 407         case 3: /* MPEG2 */
 408         case 4: /* MPEG4 */
 409                 /* only since UVD 3 */
 410                 if (p->rdev->family >= CHIP_PALM)
 411                         return 0;
 412
 413                 /* fall through */
 414         default:
 415                 DRM_ERROR("UVD codec not supported by hardware %d!\n",
 416                           stream_type);
 417                 return -EINVAL;
 418         }
 419 }
 420
 421 static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
 422                              unsigned offset, unsigned buf_sizes[])
 423 {
 424         int32_t *msg, msg_type, handle;
 425         unsigned img_size = 0;
 426         struct fence *f;
 427         void *ptr;
 428
 429         int i, r;
 430
 431         if (offset & 0x3F) {
 432                 DRM_ERROR("UVD messages must be 64 byte aligned!\n");
 433                 return -EINVAL;
 434         }
 435
 436         f = reservation_object_get_excl(bo->tbo.resv);
 437         if (f) {
 438                 r = radeon_fence_wait((struct radeon_fence *)f, false);
 439                 if (r) {
 440                         DRM_ERROR("Failed waiting for UVD message (%d)!\n", r);
 441                         return r;
 442                 }
 443         }
 444
 445         r = radeon_bo_kmap(bo, &ptr);
 446         if (r) {
 447                 DRM_ERROR("Failed mapping the UVD message (%d)!\n", r);
 448                 return r;
 449         }
 450
 451         msg = ptr + offset;
 452
 453         msg_type = msg[1];
 454         handle = msg[2];
 455
 456         if (handle == 0) {
 457                 DRM_ERROR("Invalid UVD handle!\n");
 458                 return -EINVAL;
 459         }
 460
 461         switch (msg_type) {
 462         case 0:
 463                 /* it's a create msg, calc image size (width * height) */
 464                 img_size = msg[7] * msg[8];
 465
 466                 r = radeon_uvd_validate_codec(p, msg[4]);
 467                 radeon_bo_kunmap(bo);
 468                 if (r)
 469                         return r;
 470
 471                 /* try to alloc a new handle */
 472                 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
 473                         if (atomic_read(&p->rdev->uvd.handles[i]) == handle) {
 474                                 DRM_ERROR("Handle 0x%x already in use!\n", handle);
 475                                 return -EINVAL;
 476                         }
 477
 478                         if (!atomic_cmpxchg(&p->rdev->uvd.handles[i], 0, handle)) {
 479                                 p->rdev->uvd.filp[i] = p->filp;
 480                                 p->rdev->uvd.img_size[i] = img_size;
 481                                 return 0;
 482                         }
 483                 }
 484
 485                 DRM_ERROR("No more free UVD handles!\n");
 486                 return -EINVAL;
 487
 488         case 1:
 489                 /* it's a decode msg, validate codec and calc buffer sizes */
 490                 r = radeon_uvd_validate_codec(p, msg[4]);
 491                 if (!r)
 492                         r = radeon_uvd_cs_msg_decode(msg, buf_sizes);
 493                 radeon_bo_kunmap(bo);
 494                 if (r)
 495                         return r;
 496
 497                 /* validate the handle */
 498                 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
 499                         if (atomic_read(&p->rdev->uvd.handles[i]) == handle) {
 500                                 if (p->rdev->uvd.filp[i] != p->filp) {
 501                                         DRM_ERROR("UVD handle collision detected!\n");
 502                                         return -EINVAL;
 503                                 }
 504                                 return 0;
 505                         }
 506                 }
 507
 508                 DRM_ERROR("Invalid UVD handle 0x%x!\n", handle);
 509                 return -ENOENT;
 510
 511         case 2:
 512                 /* it's a destroy msg, free the handle */
 513                 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i)
 514                         atomic_cmpxchg(&p->rdev->uvd.handles[i], handle, 0);
 515                 radeon_bo_kunmap(bo);
 516                 return 0;
 517
 518         default:
 519
 520                 DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
 521                 return -EINVAL;
 522         }
 523
 524         BUG();
 525         return -EINVAL;
 526 }
 527
 528 static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p,
 529                                int data0, int data1,
 530                                unsigned buf_sizes[], bool *has_msg_cmd)
 531 {
 532         struct radeon_cs_chunk *relocs_chunk;
 533         struct radeon_bo_list *reloc;
 534         unsigned idx, cmd, offset;
 535         uint64_t start, end;
 536         int r;
 537
 538         relocs_chunk = p->chunk_relocs;
 539         offset = radeon_get_ib_value(p, data0);
 540         idx = radeon_get_ib_value(p, data1);
 541         if (idx >= relocs_chunk->length_dw) {
 542                 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
 543                           idx, relocs_chunk->length_dw);
 544                 return -EINVAL;
 545         }
 546
 547         reloc = &p->relocs[(idx / 4)];
 548         start = reloc->gpu_offset;
 549         end = start + radeon_bo_size(reloc->robj);
 550         start += offset;
 551
 552         p->ib.ptr[data0] = start & 0xFFFFFFFF;
 553         p->ib.ptr[data1] = start >> 32;
 554
 555         cmd = radeon_get_ib_value(p, p->idx) >> 1;
 556
 557         if (cmd < 0x4) {
 558                 if (end <= start) {
 559                         DRM_ERROR("invalid reloc offset %X!\n", offset);
 560                         return -EINVAL;
 561                 }
 562                 if ((end - start) < buf_sizes[cmd]) {
 563                         DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
 564                                   (unsigned)(end - start), buf_sizes[cmd]);
 565                         return -EINVAL;
 566                 }
 567
 568         } else if (cmd != 0x100) {
 569                 DRM_ERROR("invalid UVD command %X!\n", cmd);
 570                 return -EINVAL;
 571         }
 572
 573         if ((start >> 28) != ((end - 1) >> 28)) {
 574                 DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
 575                           start, end);
 576                 return -EINVAL;
 577         }
 578
 579         /* TODO: is this still necessary on NI+ ? */
 580         if ((cmd == 0 || cmd == 0x3) &&
 581             (start >> 28) != (p->rdev->uvd.gpu_addr >> 28)) {
 582                 DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n",
 583                           start, end);
 584                 return -EINVAL;
 585         }
 586
 587         if (cmd == 0) {
 588                 if (*has_msg_cmd) {
 589                         DRM_ERROR("More than one message in a UVD-IB!\n");
 590                         return -EINVAL;
 591                 }
 592                 *has_msg_cmd = true;
 593                 r = radeon_uvd_cs_msg(p, reloc->robj, offset, buf_sizes);
 594                 if (r)
 595                         return r;
 596         } else if (!*has_msg_cmd) {
 597                 DRM_ERROR("Message needed before other commands are send!\n");
 598                 return -EINVAL;
 599         }
 600
 601         return 0;
 602 }
 603
 604 static int radeon_uvd_cs_reg(struct radeon_cs_parser *p,
 605                              struct radeon_cs_packet *pkt,
 606                              int *data0, int *data1,
 607                              unsigned buf_sizes[],
 608                              bool *has_msg_cmd)
 609 {
 610         int i, r;
 611
 612         p->idx++;
 613         for (i = 0; i <= pkt->count; ++i) {
 614                 switch (pkt->reg + i*4) {
 615                 case UVD_GPCOM_VCPU_DATA0:
 616                         *data0 = p->idx;
 617                         break;
 618                 case UVD_GPCOM_VCPU_DATA1:
 619                         *data1 = p->idx;
 620                         break;
 621                 case UVD_GPCOM_VCPU_CMD:
 622                         r = radeon_uvd_cs_reloc(p, *data0, *data1,
 623                                                 buf_sizes, has_msg_cmd);
 624                         if (r)
 625                                 return r;
 626                         break;
 627                 case UVD_ENGINE_CNTL:
 628                         break;
 629                 default:
 630                         DRM_ERROR("Invalid reg 0x%X!\n",
 631                                   pkt->reg + i*4);
 632                         return -EINVAL;
 633                 }
 634                 p->idx++;
 635         }
 636         return 0;
 637 }
 638
 639 int radeon_uvd_cs_parse(struct radeon_cs_parser *p)
 640 {
 641         struct radeon_cs_packet pkt;
 642         int r, data0 = 0, data1 = 0;
 643
 644         /* does the IB has a msg command */
 645         bool has_msg_cmd = false;
 646
 647         /* minimum buffer sizes */
 648         unsigned buf_sizes[] = {
 649                 [0x00000000]    =       2048,
 650                 [0x00000001]    =       32 * 1024 * 1024,
 651                 [0x00000002]    =       2048 * 1152 * 3,
 652                 [0x00000003]    =       2048,
 653         };
 654
 655         if (p->chunk_ib->length_dw % 16) {
 656                 DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n",
 657                           p->chunk_ib->length_dw);
 658                 return -EINVAL;
 659         }
 660
 661         if (p->chunk_relocs == NULL) {
 662                 DRM_ERROR("No relocation chunk !\n");
 663                 return -EINVAL;
 664         }
 665
 666
 667         do {
 668                 r = radeon_cs_packet_parse(p, &pkt, p->idx);
 669                 if (r)
 670                         return r;
 671                 switch (pkt.type) {
 672                 case RADEON_PACKET_TYPE0:
 673                         r = radeon_uvd_cs_reg(p, &pkt, &data0, &data1,
 674                                               buf_sizes, &has_msg_cmd);
 675                         if (r)
 676                                 return r;
 677                         break;
 678                 case RADEON_PACKET_TYPE2:
 679                         p->idx += pkt.count + 2;
 680                         break;
 681                 default:
 682                         DRM_ERROR("Unknown packet type %d !\n", pkt.type);
 683                         return -EINVAL;
 684                 }
 685         } while (p->idx < p->chunk_ib->length_dw);
 686
 687         if (!has_msg_cmd) {
 688                 DRM_ERROR("UVD-IBs need a msg command!\n");
 689                 return -EINVAL;
 690         }
 691
 692         return 0;
 693 }
 694
 695 static int radeon_uvd_send_msg(struct radeon_device *rdev,
 696                                int ring, uint64_t addr,
 697                                struct radeon_fence **fence)
 698 {
 699         struct radeon_ib ib;
 700         int i, r;
 701
 702         r = radeon_ib_get(rdev, ring, &ib, NULL, 64);
 703         if (r)
 704                 return r;
 705
 706         ib.ptr[0] = PACKET0(UVD_GPCOM_VCPU_DATA0, 0);
 707         ib.ptr[1] = addr;
 708         ib.ptr[2] = PACKET0(UVD_GPCOM_VCPU_DATA1, 0);
 709         ib.ptr[3] = addr >> 32;
 710         ib.ptr[4] = PACKET0(UVD_GPCOM_VCPU_CMD, 0);
 711         ib.ptr[5] = 0;
 712         for (i = 6; i < 16; ++i)
 713                 ib.ptr[i] = PACKET2(0);
 714         ib.length_dw = 16;
 715
 716         r = radeon_ib_schedule(rdev, &ib, NULL, false);
 717
 718         if (fence)
 719                 *fence = radeon_fence_ref(ib.fence);
 720
 721         radeon_ib_free(rdev, &ib);
 722         return r;
 723 }
 724
 725 /* multiple fence commands without any stream commands in between can
 726    crash the vcpu so just try to emmit a dummy create/destroy msg to
 727    avoid this */
 728 int radeon_uvd_get_create_msg(struct radeon_device *rdev, int ring,
 729                               uint32_t handle, struct radeon_fence **fence)
 730 {
 731         /* we use the last page of the vcpu bo for the UVD message */
 732         uint64_t offs = radeon_bo_size(rdev->uvd.vcpu_bo) -
 733                 RADEON_GPU_PAGE_SIZE;
 734
 735         uint32_t *msg = rdev->uvd.cpu_addr + offs;
 736         uint64_t addr = rdev->uvd.gpu_addr + offs;
 737
 738         int r, i;
 739
 740         r = radeon_bo_reserve(rdev->uvd.vcpu_bo, true);
 741         if (r)
 742                 return r;
 743
 744         /* stitch together an UVD create msg */
 745         msg[0] = cpu_to_le32(0x00000de4);
 746         msg[1] = cpu_to_le32(0x00000000);
 747         msg[2] = cpu_to_le32(handle);
 748         msg[3] = cpu_to_le32(0x00000000);
 749         msg[4] = cpu_to_le32(0x00000000);
 750         msg[5] = cpu_to_le32(0x00000000);
 751         msg[6] = cpu_to_le32(0x00000000);
 752         msg[7] = cpu_to_le32(0x00000780);
 753         msg[8] = cpu_to_le32(0x00000440);
 754         msg[9] = cpu_to_le32(0x00000000);
 755         msg[10] = cpu_to_le32(0x01b37000);
 756         for (i = 11; i < 1024; ++i)
 757                 msg[i] = cpu_to_le32(0x0);
 758
 759         r = radeon_uvd_send_msg(rdev, ring, addr, fence);
 760         radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 761         return r;
 762 }
 763
 764 int radeon_uvd_get_destroy_msg(struct radeon_device *rdev, int ring,
 765                                uint32_t handle, struct radeon_fence **fence)
 766 {
 767         /* we use the last page of the vcpu bo for the UVD message */
 768         uint64_t offs = radeon_bo_size(rdev->uvd.vcpu_bo) -
 769                 RADEON_GPU_PAGE_SIZE;
 770
 771         uint32_t *msg = rdev->uvd.cpu_addr + offs;
 772         uint64_t addr = rdev->uvd.gpu_addr + offs;
 773
 774         int r, i;
 775
 776         r = radeon_bo_reserve(rdev->uvd.vcpu_bo, true);
 777         if (r)
 778                 return r;
 779
 780         /* stitch together an UVD destroy msg */
 781         msg[0] = cpu_to_le32(0x00000de4);
 782         msg[1] = cpu_to_le32(0x00000002);
 783         msg[2] = cpu_to_le32(handle);
 784         msg[3] = cpu_to_le32(0x00000000);
 785         for (i = 4; i < 1024; ++i)
 786                 msg[i] = cpu_to_le32(0x0);
 787
 788         r = radeon_uvd_send_msg(rdev, ring, addr, fence);
 789         radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 790         return r;
 791 }
 792
 793 /**
 794  * radeon_uvd_count_handles - count number of open streams
 795  *
 796  * @rdev: radeon_device pointer
 797  * @sd: number of SD streams
 798  * @hd: number of HD streams
 799  *
 800  * Count the number of open SD/HD streams as a hint for power mangement
 801  */
 802 static void radeon_uvd_count_handles(struct radeon_device *rdev,
 803                                      unsigned *sd, unsigned *hd)
 804 {
 805         unsigned i;
 806
 807         *sd = 0;
 808         *hd = 0;
 809
 810         for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
 811                 if (!atomic_read(&rdev->uvd.handles[i]))
 812                         continue;
 813
 814                 if (rdev->uvd.img_size[i] >= 720*576)
 815                         ++(*hd);
 816                 else
 817                         ++(*sd);
 818         }
 819 }
 820
 821 static void radeon_uvd_idle_work_handler(struct work_struct *work)
 822 {
 823         struct radeon_device *rdev =
 824                 container_of(work, struct radeon_device, uvd.idle_work.work);
 825
 826         if (radeon_fence_count_emitted(rdev, R600_RING_TYPE_UVD_INDEX) == 0) {
 827                 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
 828                         radeon_uvd_count_handles(rdev, &rdev->pm.dpm.sd,
 829                                                  &rdev->pm.dpm.hd);
 830                         radeon_dpm_enable_uvd(rdev, false);
 831                 } else {
 832                         radeon_set_uvd_clocks(rdev, 0, 0);
 833                 }
 834         } else {
 835                 schedule_delayed_work(&rdev->uvd.idle_work,
 836                                       msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
 837         }
 838 }
 839
 840 void radeon_uvd_note_usage(struct radeon_device *rdev)
 841 {
 842         bool streams_changed = false;
 843         bool set_clocks = !cancel_delayed_work_sync(&rdev->uvd.idle_work);
 844         set_clocks &= schedule_delayed_work(&rdev->uvd.idle_work,
 845                                             msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
 846
 847         if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
 848                 unsigned hd = 0, sd = 0;
 849                 radeon_uvd_count_handles(rdev, &sd, &hd);
 850                 if ((rdev->pm.dpm.sd != sd) ||
 851                     (rdev->pm.dpm.hd != hd)) {
 852                         rdev->pm.dpm.sd = sd;
 853                         rdev->pm.dpm.hd = hd;
 854                         /* disable this for now */
 855                         /*streams_changed = true;*/
 856                 }
 857         }
 858
 859         if (set_clocks || streams_changed) {
 860                 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
 861                         radeon_dpm_enable_uvd(rdev, true);
 862                 } else {
 863                         radeon_set_uvd_clocks(rdev, 53300, 40000);
 864                 }
 865         }
 866 }
 867
 868 static unsigned radeon_uvd_calc_upll_post_div(unsigned vco_freq,
 869                                               unsigned target_freq,
 870                                               unsigned pd_min,
 871                                               unsigned pd_even)
 872 {
 873         unsigned post_div = vco_freq / target_freq;
 874
 875         /* adjust to post divider minimum value */
 876         if (post_div < pd_min)
 877                 post_div = pd_min;
 878
 879         /* we alway need a frequency less than or equal the target */
 880         if ((vco_freq / post_div) > target_freq)
 881                 post_div += 1;
 882
 883         /* post dividers above a certain value must be even */
 884         if (post_div > pd_even && post_div % 2)
 885                 post_div += 1;
 886
 887         return post_div;
 888 }
 889
 890 /**
 891  * radeon_uvd_calc_upll_dividers - calc UPLL clock dividers
 892  *
 893  * @rdev: radeon_device pointer
 894  * @vclk: wanted VCLK
 895  * @dclk: wanted DCLK
 896  * @vco_min: minimum VCO frequency
 897  * @vco_max: maximum VCO frequency
 898  * @fb_factor: factor to multiply vco freq with
 899  * @fb_mask: limit and bitmask for feedback divider
 900  * @pd_min: post divider minimum
 901  * @pd_max: post divider maximum
 902  * @pd_even: post divider must be even above this value
 903  * @optimal_fb_div: resulting feedback divider
 904  * @optimal_vclk_div: resulting vclk post divider
 905  * @optimal_dclk_div: resulting dclk post divider
 906  *
 907  * Calculate dividers for UVDs UPLL (R6xx-SI, except APUs).
 908  * Returns zero on success -EINVAL on error.
 909  */
 910 int radeon_uvd_calc_upll_dividers(struct radeon_device *rdev,
 911                                   unsigned vclk, unsigned dclk,
 912                                   unsigned vco_min, unsigned vco_max,
 913                                   unsigned fb_factor, unsigned fb_mask,
 914                                   unsigned pd_min, unsigned pd_max,
 915                                   unsigned pd_even,
 916                                   unsigned *optimal_fb_div,
 917                                   unsigned *optimal_vclk_div,
 918                                   unsigned *optimal_dclk_div)
 919 {
 920         unsigned vco_freq, ref_freq = rdev->clock.spll.reference_freq;
 921
 922         /* start off with something large */
 923         unsigned optimal_score = ~0;
 924
 925         /* loop through vco from low to high */
 926         vco_min = max(max(vco_min, vclk), dclk);
 927         for (vco_freq = vco_min; vco_freq <= vco_max; vco_freq += 100) {
 928
 929                 uint64_t fb_div = (uint64_t)vco_freq * fb_factor;
 930                 unsigned vclk_div, dclk_div, score;
 931
 932                 do_div(fb_div, ref_freq);
 933
 934                 /* fb div out of range ? */
 935                 if (fb_div > fb_mask)
 936                         break; /* it can oly get worse */
 937
 938                 fb_div &= fb_mask;
 939
 940                 /* calc vclk divider with current vco freq */
 941                 vclk_div = radeon_uvd_calc_upll_post_div(vco_freq, vclk,
 942                                                          pd_min, pd_even);
 943                 if (vclk_div > pd_max)
 944                         break; /* vco is too big, it has to stop */
 945
 946                 /* calc dclk divider with current vco freq */
 947                 dclk_div = radeon_uvd_calc_upll_post_div(vco_freq, dclk,
 948                                                          pd_min, pd_even);
 949                 if (vclk_div > pd_max)
 950                         break; /* vco is too big, it has to stop */
 951
 952                 /* calc score with current vco freq */
 953                 score = vclk - (vco_freq / vclk_div) + dclk - (vco_freq / dclk_div);
 954
 955                 /* determine if this vco setting is better than current optimal settings */
 956                 if (score < optimal_score) {
 957                         *optimal_fb_div = fb_div;
 958                         *optimal_vclk_div = vclk_div;
 959                         *optimal_dclk_div = dclk_div;
 960                         optimal_score = score;
 961                         if (optimal_score == 0)
 962                                 break; /* it can't get better than this */
 963                 }
 964         }
 965
 966         /* did we found a valid setup ? */
 967         if (optimal_score == ~0)
 968                 return -EINVAL;
 969
 970         return 0;
 971 }
 972
 973 int radeon_uvd_send_upll_ctlreq(struct radeon_device *rdev,
 974                                 unsigned cg_upll_func_cntl)
 975 {
 976         unsigned i;
 977
 978         /* make sure UPLL_CTLREQ is deasserted */
 979         WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
 980
 981         mdelay(10);
 982
 983         /* assert UPLL_CTLREQ */
 984         WREG32_P(cg_upll_func_cntl, UPLL_CTLREQ_MASK, ~UPLL_CTLREQ_MASK);
 985
 986         /* wait for CTLACK and CTLACK2 to get asserted */
 987         for (i = 0; i < 100; ++i) {
 988                 uint32_t mask = UPLL_CTLACK_MASK | UPLL_CTLACK2_MASK;
 989                 if ((RREG32(cg_upll_func_cntl) & mask) == mask)
 990                         break;
 991                 mdelay(10);
 992         }
 993
 994         /* deassert UPLL_CTLREQ */
 995         WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
 996
 997         if (i == 100) {
 998                 DRM_ERROR("Timeout setting UVD clocks!\n");
 999                 return -ETIMEDOUT;
1000         }
1001
1002         return 0;
1003 }