drivers/gpu/drm/amd/amdgpu/amdgpu_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 <[email protected]>
  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 "amdgpu.h"
  37 #include "amdgpu_pm.h"
  38 #include "amdgpu_uvd.h"
  39 #include "cikd.h"
  40 #include "uvd/uvd_4_2_d.h"
  41
  42 /* 1 second timeout */
  43 #define UVD_IDLE_TIMEOUT        msecs_to_jiffies(1000)
  44
  45 /* Firmware versions for VI */
  46 #define FW_1_65_10      ((1 << 24) | (65 << 16) | (10 << 8))
  47 #define FW_1_87_11      ((1 << 24) | (87 << 16) | (11 << 8))
  48 #define FW_1_87_12      ((1 << 24) | (87 << 16) | (12 << 8))
  49 #define FW_1_37_15      ((1 << 24) | (37 << 16) | (15 << 8))
  50
  51 /* Polaris10/11 firmware version */
  52 #define FW_1_66_16      ((1 << 24) | (66 << 16) | (16 << 8))
  53
  54 /* Firmware Names */
  55 #ifdef CONFIG_DRM_AMDGPU_CIK
  56 #define FIRMWARE_BONAIRE        "radeon/bonaire_uvd.bin"
  57 #define FIRMWARE_KABINI "radeon/kabini_uvd.bin"
  58 #define FIRMWARE_KAVERI "radeon/kaveri_uvd.bin"
  59 #define FIRMWARE_HAWAII "radeon/hawaii_uvd.bin"
  60 #define FIRMWARE_MULLINS        "radeon/mullins_uvd.bin"
  61 #endif
  62 #define FIRMWARE_TONGA          "amdgpu/tonga_uvd.bin"
  63 #define FIRMWARE_CARRIZO        "amdgpu/carrizo_uvd.bin"
  64 #define FIRMWARE_FIJI           "amdgpu/fiji_uvd.bin"
  65 #define FIRMWARE_STONEY         "amdgpu/stoney_uvd.bin"
  66 #define FIRMWARE_POLARIS10      "amdgpu/polaris10_uvd.bin"
  67 #define FIRMWARE_POLARIS11      "amdgpu/polaris11_uvd.bin"
  68
  69 /**
  70  * amdgpu_uvd_cs_ctx - Command submission parser context
  71  *
  72  * Used for emulating virtual memory support on UVD 4.2.
  73  */
  74 struct amdgpu_uvd_cs_ctx {
  75         struct amdgpu_cs_parser *parser;
  76         unsigned reg, count;
  77         unsigned data0, data1;
  78         unsigned idx;
  79         unsigned ib_idx;
  80
  81         /* does the IB has a msg command */
  82         bool has_msg_cmd;
  83
  84         /* minimum buffer sizes */
  85         unsigned *buf_sizes;
  86 };
  87
  88 #ifdef CONFIG_DRM_AMDGPU_CIK
  89 MODULE_FIRMWARE(FIRMWARE_BONAIRE);
  90 MODULE_FIRMWARE(FIRMWARE_KABINI);
  91 MODULE_FIRMWARE(FIRMWARE_KAVERI);
  92 MODULE_FIRMWARE(FIRMWARE_HAWAII);
  93 MODULE_FIRMWARE(FIRMWARE_MULLINS);
  94 #endif
  95 MODULE_FIRMWARE(FIRMWARE_TONGA);
  96 MODULE_FIRMWARE(FIRMWARE_CARRIZO);
  97 MODULE_FIRMWARE(FIRMWARE_FIJI);
  98 MODULE_FIRMWARE(FIRMWARE_STONEY);
  99 MODULE_FIRMWARE(FIRMWARE_POLARIS10);
 100 MODULE_FIRMWARE(FIRMWARE_POLARIS11);
 101
 102 static void amdgpu_uvd_idle_work_handler(struct work_struct *work);
 103
 104 int amdgpu_uvd_sw_init(struct amdgpu_device *adev)
 105 {
 106         struct amdgpu_ring *ring;
 107         struct amd_sched_rq *rq;
 108         unsigned long bo_size;
 109         const char *fw_name;
 110         const struct common_firmware_header *hdr;
 111         unsigned version_major, version_minor, family_id;
 112         int i, r;
 113
 114         INIT_DELAYED_WORK(&adev->uvd.idle_work, amdgpu_uvd_idle_work_handler);
 115
 116         switch (adev->asic_type) {
 117 #ifdef CONFIG_DRM_AMDGPU_CIK
 118         case CHIP_BONAIRE:
 119                 fw_name = FIRMWARE_BONAIRE;
 120                 break;
 121         case CHIP_KABINI:
 122                 fw_name = FIRMWARE_KABINI;
 123                 break;
 124         case CHIP_KAVERI:
 125                 fw_name = FIRMWARE_KAVERI;
 126                 break;
 127         case CHIP_HAWAII:
 128                 fw_name = FIRMWARE_HAWAII;
 129                 break;
 130         case CHIP_MULLINS:
 131                 fw_name = FIRMWARE_MULLINS;
 132                 break;
 133 #endif
 134         case CHIP_TONGA:
 135                 fw_name = FIRMWARE_TONGA;
 136                 break;
 137         case CHIP_FIJI:
 138                 fw_name = FIRMWARE_FIJI;
 139                 break;
 140         case CHIP_CARRIZO:
 141                 fw_name = FIRMWARE_CARRIZO;
 142                 break;
 143         case CHIP_STONEY:
 144                 fw_name = FIRMWARE_STONEY;
 145                 break;
 146         case CHIP_POLARIS10:
 147                 fw_name = FIRMWARE_POLARIS10;
 148                 break;
 149         case CHIP_POLARIS11:
 150                 fw_name = FIRMWARE_POLARIS11;
 151                 break;
 152         default:
 153                 return -EINVAL;
 154         }
 155
 156         r = request_firmware(&adev->uvd.fw, fw_name, adev->dev);
 157         if (r) {
 158                 dev_err(adev->dev, "amdgpu_uvd: Can't load firmware \"%s\"\n",
 159                         fw_name);
 160                 return r;
 161         }
 162
 163         r = amdgpu_ucode_validate(adev->uvd.fw);
 164         if (r) {
 165                 dev_err(adev->dev, "amdgpu_uvd: Can't validate firmware \"%s\"\n",
 166                         fw_name);
 167                 release_firmware(adev->uvd.fw);
 168                 adev->uvd.fw = NULL;
 169                 return r;
 170         }
 171
 172         /* Set the default UVD handles that the firmware can handle */
 173         adev->uvd.max_handles = AMDGPU_DEFAULT_UVD_HANDLES;
 174
 175         hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
 176         family_id = le32_to_cpu(hdr->ucode_version) & 0xff;
 177         version_major = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xff;
 178         version_minor = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff;
 179         DRM_INFO("Found UVD firmware Version: %hu.%hu Family ID: %hu\n",
 180                 version_major, version_minor, family_id);
 181
 182         /*
 183          * Limit the number of UVD handles depending on microcode major
 184          * and minor versions. The firmware version which has 40 UVD
 185          * instances support is 1.80. So all subsequent versions should
 186          * also have the same support.
 187          */
 188         if ((version_major > 0x01) ||
 189             ((version_major == 0x01) && (version_minor >= 0x50)))
 190                 adev->uvd.max_handles = AMDGPU_MAX_UVD_HANDLES;
 191
 192         adev->uvd.fw_version = ((version_major << 24) | (version_minor << 16) |
 193                                 (family_id << 8));
 194
 195         if ((adev->asic_type == CHIP_POLARIS10 ||
 196              adev->asic_type == CHIP_POLARIS11) &&
 197             (adev->uvd.fw_version < FW_1_66_16))
 198                 DRM_ERROR("POLARIS10/11 UVD firmware version %hu.%hu is too old.\n",
 199                           version_major, version_minor);
 200
 201         bo_size = AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(hdr->ucode_size_bytes) + 8)
 202                   +  AMDGPU_UVD_STACK_SIZE + AMDGPU_UVD_HEAP_SIZE
 203                   +  AMDGPU_UVD_SESSION_SIZE * adev->uvd.max_handles;
 204         r = amdgpu_bo_create_kernel(adev, bo_size, PAGE_SIZE,
 205                                     AMDGPU_GEM_DOMAIN_VRAM, &adev->uvd.vcpu_bo,
 206                                     &adev->uvd.gpu_addr, &adev->uvd.cpu_addr);
 207         if (r) {
 208                 dev_err(adev->dev, "(%d) failed to allocate UVD bo\n", r);
 209                 return r;
 210         }
 211
 212         ring = &adev->uvd.ring;
 213         rq = &ring->sched.sched_rq[AMD_SCHED_PRIORITY_NORMAL];
 214         r = amd_sched_entity_init(&ring->sched, &adev->uvd.entity,
 215                                   rq, amdgpu_sched_jobs);
 216         if (r != 0) {
 217                 DRM_ERROR("Failed setting up UVD run queue.\n");
 218                 return r;
 219         }
 220
 221         for (i = 0; i < adev->uvd.max_handles; ++i) {
 222                 atomic_set(&adev->uvd.handles[i], 0);
 223                 adev->uvd.filp[i] = NULL;
 224         }
 225
 226         /* from uvd v5.0 HW addressing capacity increased to 64 bits */
 227         if (!amdgpu_ip_block_version_cmp(adev, AMD_IP_BLOCK_TYPE_UVD, 5, 0))
 228                 adev->uvd.address_64_bit = true;
 229
 230         switch (adev->asic_type) {
 231         case CHIP_TONGA:
 232                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_65_10;
 233                 break;
 234         case CHIP_CARRIZO:
 235                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_87_11;
 236                 break;
 237         case CHIP_FIJI:
 238                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_87_12;
 239                 break;
 240         case CHIP_STONEY:
 241                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_37_15;
 242                 break;
 243         default:
 244                 adev->uvd.use_ctx_buf = adev->asic_type >= CHIP_POLARIS10;
 245         }
 246
 247         return 0;
 248 }
 249
 250 int amdgpu_uvd_sw_fini(struct amdgpu_device *adev)
 251 {
 252         kfree(adev->uvd.saved_bo);
 253
 254         amd_sched_entity_fini(&adev->uvd.ring.sched, &adev->uvd.entity);
 255
 256         amdgpu_bo_free_kernel(&adev->uvd.vcpu_bo,
 257                               &adev->uvd.gpu_addr,
 258                               (void **)&adev->uvd.cpu_addr);
 259
 260         amdgpu_ring_fini(&adev->uvd.ring);
 261
 262         release_firmware(adev->uvd.fw);
 263
 264         return 0;
 265 }
 266
 267 int amdgpu_uvd_suspend(struct amdgpu_device *adev)
 268 {
 269         unsigned size;
 270         void *ptr;
 271         int i;
 272
 273         if (adev->uvd.vcpu_bo == NULL)
 274                 return 0;
 275
 276         for (i = 0; i < adev->uvd.max_handles; ++i)
 277                 if (atomic_read(&adev->uvd.handles[i]))
 278                         break;
 279
 280         if (i == AMDGPU_MAX_UVD_HANDLES)
 281                 return 0;
 282
 283         cancel_delayed_work_sync(&adev->uvd.idle_work);
 284
 285         size = amdgpu_bo_size(adev->uvd.vcpu_bo);
 286         ptr = adev->uvd.cpu_addr;
 287
 288         adev->uvd.saved_bo = kmalloc(size, GFP_KERNEL);
 289         if (!adev->uvd.saved_bo)
 290                 return -ENOMEM;
 291
 292         memcpy_fromio(adev->uvd.saved_bo, ptr, size);
 293
 294         return 0;
 295 }
 296
 297 int amdgpu_uvd_resume(struct amdgpu_device *adev)
 298 {
 299         unsigned size;
 300         void *ptr;
 301
 302         if (adev->uvd.vcpu_bo == NULL)
 303                 return -EINVAL;
 304
 305         size = amdgpu_bo_size(adev->uvd.vcpu_bo);
 306         ptr = adev->uvd.cpu_addr;
 307
 308         if (adev->uvd.saved_bo != NULL) {
 309                 memcpy_toio(ptr, adev->uvd.saved_bo, size);
 310                 kfree(adev->uvd.saved_bo);
 311                 adev->uvd.saved_bo = NULL;
 312         } else {
 313                 const struct common_firmware_header *hdr;
 314                 unsigned offset;
 315
 316                 hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
 317                 offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
 318                 memcpy_toio(adev->uvd.cpu_addr, adev->uvd.fw->data + offset,
 319                             le32_to_cpu(hdr->ucode_size_bytes));
 320                 size -= le32_to_cpu(hdr->ucode_size_bytes);
 321                 ptr += le32_to_cpu(hdr->ucode_size_bytes);
 322                 memset_io(ptr, 0, size);
 323         }
 324
 325         return 0;
 326 }
 327
 328 void amdgpu_uvd_free_handles(struct amdgpu_device *adev, struct drm_file *filp)
 329 {
 330         struct amdgpu_ring *ring = &adev->uvd.ring;
 331         int i, r;
 332
 333         for (i = 0; i < adev->uvd.max_handles; ++i) {
 334                 uint32_t handle = atomic_read(&adev->uvd.handles[i]);
 335                 if (handle != 0 && adev->uvd.filp[i] == filp) {
 336                         struct dma_fence *fence;
 337
 338                         r = amdgpu_uvd_get_destroy_msg(ring, handle,
 339                                                        false, &fence);
 340                         if (r) {
 341                                 DRM_ERROR("Error destroying UVD (%d)!\n", r);
 342                                 continue;
 343                         }
 344
 345                         dma_fence_wait(fence, false);
 346                         dma_fence_put(fence);
 347
 348                         adev->uvd.filp[i] = NULL;
 349                         atomic_set(&adev->uvd.handles[i], 0);
 350                 }
 351         }
 352 }
 353
 354 static void amdgpu_uvd_force_into_uvd_segment(struct amdgpu_bo *abo)
 355 {
 356         int i;
 357         for (i = 0; i < abo->placement.num_placement; ++i) {
 358                 abo->placements[i].fpfn = 0 >> PAGE_SHIFT;
 359                 abo->placements[i].lpfn = (256 * 1024 * 1024) >> PAGE_SHIFT;
 360         }
 361 }
 362
 363 /**
 364  * amdgpu_uvd_cs_pass1 - first parsing round
 365  *
 366  * @ctx: UVD parser context
 367  *
 368  * Make sure UVD message and feedback buffers are in VRAM and
 369  * nobody is violating an 256MB boundary.
 370  */
 371 static int amdgpu_uvd_cs_pass1(struct amdgpu_uvd_cs_ctx *ctx)
 372 {
 373         struct amdgpu_bo_va_mapping *mapping;
 374         struct amdgpu_bo *bo;
 375         uint32_t cmd, lo, hi;
 376         uint64_t addr;
 377         int r = 0;
 378
 379         lo = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->data0);
 380         hi = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->data1);
 381         addr = ((uint64_t)lo) | (((uint64_t)hi) << 32);
 382
 383         mapping = amdgpu_cs_find_mapping(ctx->parser, addr, &bo);
 384         if (mapping == NULL) {
 385                 DRM_ERROR("Can't find BO for addr 0x%08Lx\n", addr);
 386                 return -EINVAL;
 387         }
 388
 389         if (!ctx->parser->adev->uvd.address_64_bit) {
 390                 /* check if it's a message or feedback command */
 391                 cmd = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->idx) >> 1;
 392                 if (cmd == 0x0 || cmd == 0x3) {
 393                         /* yes, force it into VRAM */
 394                         uint32_t domain = AMDGPU_GEM_DOMAIN_VRAM;
 395                         amdgpu_ttm_placement_from_domain(bo, domain);
 396                 }
 397                 amdgpu_uvd_force_into_uvd_segment(bo);
 398
 399                 r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
 400         }
 401
 402         return r;
 403 }
 404
 405 /**
 406  * amdgpu_uvd_cs_msg_decode - handle UVD decode message
 407  *
 408  * @msg: pointer to message structure
 409  * @buf_sizes: returned buffer sizes
 410  *
 411  * Peek into the decode message and calculate the necessary buffer sizes.
 412  */
 413 static int amdgpu_uvd_cs_msg_decode(struct amdgpu_device *adev, uint32_t *msg,
 414         unsigned buf_sizes[])
 415 {
 416         unsigned stream_type = msg[4];
 417         unsigned width = msg[6];
 418         unsigned height = msg[7];
 419         unsigned dpb_size = msg[9];
 420         unsigned pitch = msg[28];
 421         unsigned level = msg[57];
 422
 423         unsigned width_in_mb = width / 16;
 424         unsigned height_in_mb = ALIGN(height / 16, 2);
 425         unsigned fs_in_mb = width_in_mb * height_in_mb;
 426
 427         unsigned image_size, tmp, min_dpb_size, num_dpb_buffer;
 428         unsigned min_ctx_size = ~0;
 429
 430         image_size = width * height;
 431         image_size += image_size / 2;
 432         image_size = ALIGN(image_size, 1024);
 433
 434         switch (stream_type) {
 435         case 0: /* H264 */
 436                 switch(level) {
 437                 case 30:
 438                         num_dpb_buffer = 8100 / fs_in_mb;
 439                         break;
 440                 case 31:
 441                         num_dpb_buffer = 18000 / fs_in_mb;
 442                         break;
 443                 case 32:
 444                         num_dpb_buffer = 20480 / fs_in_mb;
 445                         break;
 446                 case 41:
 447                         num_dpb_buffer = 32768 / fs_in_mb;
 448                         break;
 449                 case 42:
 450                         num_dpb_buffer = 34816 / fs_in_mb;
 451                         break;
 452                 case 50:
 453                         num_dpb_buffer = 110400 / fs_in_mb;
 454                         break;
 455                 case 51:
 456                         num_dpb_buffer = 184320 / fs_in_mb;
 457                         break;
 458                 default:
 459                         num_dpb_buffer = 184320 / fs_in_mb;
 460                         break;
 461                 }
 462                 num_dpb_buffer++;
 463                 if (num_dpb_buffer > 17)
 464                         num_dpb_buffer = 17;
 465
 466                 /* reference picture buffer */
 467                 min_dpb_size = image_size * num_dpb_buffer;
 468
 469                 /* macroblock context buffer */
 470                 min_dpb_size += width_in_mb * height_in_mb * num_dpb_buffer * 192;
 471
 472                 /* IT surface buffer */
 473                 min_dpb_size += width_in_mb * height_in_mb * 32;
 474                 break;
 475
 476         case 1: /* VC1 */
 477
 478                 /* reference picture buffer */
 479                 min_dpb_size = image_size * 3;
 480
 481                 /* CONTEXT_BUFFER */
 482                 min_dpb_size += width_in_mb * height_in_mb * 128;
 483
 484                 /* IT surface buffer */
 485                 min_dpb_size += width_in_mb * 64;
 486
 487                 /* DB surface buffer */
 488                 min_dpb_size += width_in_mb * 128;
 489
 490                 /* BP */
 491                 tmp = max(width_in_mb, height_in_mb);
 492                 min_dpb_size += ALIGN(tmp * 7 * 16, 64);
 493                 break;
 494
 495         case 3: /* MPEG2 */
 496
 497                 /* reference picture buffer */
 498                 min_dpb_size = image_size * 3;
 499                 break;
 500
 501         case 4: /* MPEG4 */
 502
 503                 /* reference picture buffer */
 504                 min_dpb_size = image_size * 3;
 505
 506                 /* CM */
 507                 min_dpb_size += width_in_mb * height_in_mb * 64;
 508
 509                 /* IT surface buffer */
 510                 min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64);
 511                 break;
 512
 513         case 7: /* H264 Perf */
 514                 switch(level) {
 515                 case 30:
 516                         num_dpb_buffer = 8100 / fs_in_mb;
 517                         break;
 518                 case 31:
 519                         num_dpb_buffer = 18000 / fs_in_mb;
 520                         break;
 521                 case 32:
 522                         num_dpb_buffer = 20480 / fs_in_mb;
 523                         break;
 524                 case 41:
 525                         num_dpb_buffer = 32768 / fs_in_mb;
 526                         break;
 527                 case 42:
 528                         num_dpb_buffer = 34816 / fs_in_mb;
 529                         break;
 530                 case 50:
 531                         num_dpb_buffer = 110400 / fs_in_mb;
 532                         break;
 533                 case 51:
 534                         num_dpb_buffer = 184320 / fs_in_mb;
 535                         break;
 536                 default:
 537                         num_dpb_buffer = 184320 / fs_in_mb;
 538                         break;
 539                 }
 540                 num_dpb_buffer++;
 541                 if (num_dpb_buffer > 17)
 542                         num_dpb_buffer = 17;
 543
 544                 /* reference picture buffer */
 545                 min_dpb_size = image_size * num_dpb_buffer;
 546
 547                 if (!adev->uvd.use_ctx_buf){
 548                         /* macroblock context buffer */
 549                         min_dpb_size +=
 550                                 width_in_mb * height_in_mb * num_dpb_buffer * 192;
 551
 552                         /* IT surface buffer */
 553                         min_dpb_size += width_in_mb * height_in_mb * 32;
 554                 } else {
 555                         /* macroblock context buffer */
 556                         min_ctx_size =
 557                                 width_in_mb * height_in_mb * num_dpb_buffer * 192;
 558                 }
 559                 break;
 560
 561         case 16: /* H265 */
 562                 image_size = (ALIGN(width, 16) * ALIGN(height, 16) * 3) / 2;
 563                 image_size = ALIGN(image_size, 256);
 564
 565                 num_dpb_buffer = (le32_to_cpu(msg[59]) & 0xff) + 2;
 566                 min_dpb_size = image_size * num_dpb_buffer;
 567                 min_ctx_size = ((width + 255) / 16) * ((height + 255) / 16)
 568                                            * 16 * num_dpb_buffer + 52 * 1024;
 569                 break;
 570
 571         default:
 572                 DRM_ERROR("UVD codec not handled %d!\n", stream_type);
 573                 return -EINVAL;
 574         }
 575
 576         if (width > pitch) {
 577                 DRM_ERROR("Invalid UVD decoding target pitch!\n");
 578                 return -EINVAL;
 579         }
 580
 581         if (dpb_size < min_dpb_size) {
 582                 DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n",
 583                           dpb_size, min_dpb_size);
 584                 return -EINVAL;
 585         }
 586
 587         buf_sizes[0x1] = dpb_size;
 588         buf_sizes[0x2] = image_size;
 589         buf_sizes[0x4] = min_ctx_size;
 590         return 0;
 591 }
 592
 593 /**
 594  * amdgpu_uvd_cs_msg - handle UVD message
 595  *
 596  * @ctx: UVD parser context
 597  * @bo: buffer object containing the message
 598  * @offset: offset into the buffer object
 599  *
 600  * Peek into the UVD message and extract the session id.
 601  * Make sure that we don't open up to many sessions.
 602  */
 603 static int amdgpu_uvd_cs_msg(struct amdgpu_uvd_cs_ctx *ctx,
 604                              struct amdgpu_bo *bo, unsigned offset)
 605 {
 606         struct amdgpu_device *adev = ctx->parser->adev;
 607         int32_t *msg, msg_type, handle;
 608         void *ptr;
 609         long r;
 610         int i;
 611
 612         if (offset & 0x3F) {
 613                 DRM_ERROR("UVD messages must be 64 byte aligned!\n");
 614                 return -EINVAL;
 615         }
 616
 617         r = amdgpu_bo_kmap(bo, &ptr);
 618         if (r) {
 619                 DRM_ERROR("Failed mapping the UVD message (%ld)!\n", r);
 620                 return r;
 621         }
 622
 623         msg = ptr + offset;
 624
 625         msg_type = msg[1];
 626         handle = msg[2];
 627
 628         if (handle == 0) {
 629                 DRM_ERROR("Invalid UVD handle!\n");
 630                 return -EINVAL;
 631         }
 632
 633         switch (msg_type) {
 634         case 0:
 635                 /* it's a create msg, calc image size (width * height) */
 636                 amdgpu_bo_kunmap(bo);
 637
 638                 /* try to alloc a new handle */
 639                 for (i = 0; i < adev->uvd.max_handles; ++i) {
 640                         if (atomic_read(&adev->uvd.handles[i]) == handle) {
 641                                 DRM_ERROR("Handle 0x%x already in use!\n", handle);
 642                                 return -EINVAL;
 643                         }
 644
 645                         if (!atomic_cmpxchg(&adev->uvd.handles[i], 0, handle)) {
 646                                 adev->uvd.filp[i] = ctx->parser->filp;
 647                                 return 0;
 648                         }
 649                 }
 650
 651                 DRM_ERROR("No more free UVD handles!\n");
 652                 return -ENOSPC;
 653
 654         case 1:
 655                 /* it's a decode msg, calc buffer sizes */
 656                 r = amdgpu_uvd_cs_msg_decode(adev, msg, ctx->buf_sizes);
 657                 amdgpu_bo_kunmap(bo);
 658                 if (r)
 659                         return r;
 660
 661                 /* validate the handle */
 662                 for (i = 0; i < adev->uvd.max_handles; ++i) {
 663                         if (atomic_read(&adev->uvd.handles[i]) == handle) {
 664                                 if (adev->uvd.filp[i] != ctx->parser->filp) {
 665                                         DRM_ERROR("UVD handle collision detected!\n");
 666                                         return -EINVAL;
 667                                 }
 668                                 return 0;
 669                         }
 670                 }
 671
 672                 DRM_ERROR("Invalid UVD handle 0x%x!\n", handle);
 673                 return -ENOENT;
 674
 675         case 2:
 676                 /* it's a destroy msg, free the handle */
 677                 for (i = 0; i < adev->uvd.max_handles; ++i)
 678                         atomic_cmpxchg(&adev->uvd.handles[i], handle, 0);
 679                 amdgpu_bo_kunmap(bo);
 680                 return 0;
 681
 682         default:
 683                 DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
 684                 return -EINVAL;
 685         }
 686         BUG();
 687         return -EINVAL;
 688 }
 689
 690 /**
 691  * amdgpu_uvd_cs_pass2 - second parsing round
 692  *
 693  * @ctx: UVD parser context
 694  *
 695  * Patch buffer addresses, make sure buffer sizes are correct.
 696  */
 697 static int amdgpu_uvd_cs_pass2(struct amdgpu_uvd_cs_ctx *ctx)
 698 {
 699         struct amdgpu_bo_va_mapping *mapping;
 700         struct amdgpu_bo *bo;
 701         uint32_t cmd, lo, hi;
 702         uint64_t start, end;
 703         uint64_t addr;
 704         int r;
 705
 706         lo = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->data0);
 707         hi = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->data1);
 708         addr = ((uint64_t)lo) | (((uint64_t)hi) << 32);
 709
 710         mapping = amdgpu_cs_find_mapping(ctx->parser, addr, &bo);
 711         if (mapping == NULL)
 712                 return -EINVAL;
 713
 714         start = amdgpu_bo_gpu_offset(bo);
 715
 716         end = (mapping->it.last + 1 - mapping->it.start);
 717         end = end * AMDGPU_GPU_PAGE_SIZE + start;
 718
 719         addr -= ((uint64_t)mapping->it.start) * AMDGPU_GPU_PAGE_SIZE;
 720         start += addr;
 721
 722         amdgpu_set_ib_value(ctx->parser, ctx->ib_idx, ctx->data0,
 723                             lower_32_bits(start));
 724         amdgpu_set_ib_value(ctx->parser, ctx->ib_idx, ctx->data1,
 725                             upper_32_bits(start));
 726
 727         cmd = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->idx) >> 1;
 728         if (cmd < 0x4) {
 729                 if ((end - start) < ctx->buf_sizes[cmd]) {
 730                         DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
 731                                   (unsigned)(end - start),
 732                                   ctx->buf_sizes[cmd]);
 733                         return -EINVAL;
 734                 }
 735
 736         } else if (cmd == 0x206) {
 737                 if ((end - start) < ctx->buf_sizes[4]) {
 738                         DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
 739                                           (unsigned)(end - start),
 740                                           ctx->buf_sizes[4]);
 741                         return -EINVAL;
 742                 }
 743         } else if ((cmd != 0x100) && (cmd != 0x204)) {
 744                 DRM_ERROR("invalid UVD command %X!\n", cmd);
 745                 return -EINVAL;
 746         }
 747
 748         if (!ctx->parser->adev->uvd.address_64_bit) {
 749                 if ((start >> 28) != ((end - 1) >> 28)) {
 750                         DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
 751                                   start, end);
 752                         return -EINVAL;
 753                 }
 754
 755                 if ((cmd == 0 || cmd == 0x3) &&
 756                     (start >> 28) != (ctx->parser->adev->uvd.gpu_addr >> 28)) {
 757                         DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n",
 758                                   start, end);
 759                         return -EINVAL;
 760                 }
 761         }
 762
 763         if (cmd == 0) {
 764                 ctx->has_msg_cmd = true;
 765                 r = amdgpu_uvd_cs_msg(ctx, bo, addr);
 766                 if (r)
 767                         return r;
 768         } else if (!ctx->has_msg_cmd) {
 769                 DRM_ERROR("Message needed before other commands are send!\n");
 770                 return -EINVAL;
 771         }
 772
 773         return 0;
 774 }
 775
 776 /**
 777  * amdgpu_uvd_cs_reg - parse register writes
 778  *
 779  * @ctx: UVD parser context
 780  * @cb: callback function
 781  *
 782  * Parse the register writes, call cb on each complete command.
 783  */
 784 static int amdgpu_uvd_cs_reg(struct amdgpu_uvd_cs_ctx *ctx,
 785                              int (*cb)(struct amdgpu_uvd_cs_ctx *ctx))
 786 {
 787         struct amdgpu_ib *ib = &ctx->parser->job->ibs[ctx->ib_idx];
 788         int i, r;
 789
 790         ctx->idx++;
 791         for (i = 0; i <= ctx->count; ++i) {
 792                 unsigned reg = ctx->reg + i;
 793
 794                 if (ctx->idx >= ib->length_dw) {
 795                         DRM_ERROR("Register command after end of CS!\n");
 796                         return -EINVAL;
 797                 }
 798
 799                 switch (reg) {
 800                 case mmUVD_GPCOM_VCPU_DATA0:
 801                         ctx->data0 = ctx->idx;
 802                         break;
 803                 case mmUVD_GPCOM_VCPU_DATA1:
 804                         ctx->data1 = ctx->idx;
 805                         break;
 806                 case mmUVD_GPCOM_VCPU_CMD:
 807                         r = cb(ctx);
 808                         if (r)
 809                                 return r;
 810                         break;
 811                 case mmUVD_ENGINE_CNTL:
 812                 case mmUVD_NO_OP:
 813                         break;
 814                 default:
 815                         DRM_ERROR("Invalid reg 0x%X!\n", reg);
 816                         return -EINVAL;
 817                 }
 818                 ctx->idx++;
 819         }
 820         return 0;
 821 }
 822
 823 /**
 824  * amdgpu_uvd_cs_packets - parse UVD packets
 825  *
 826  * @ctx: UVD parser context
 827  * @cb: callback function
 828  *
 829  * Parse the command stream packets.
 830  */
 831 static int amdgpu_uvd_cs_packets(struct amdgpu_uvd_cs_ctx *ctx,
 832                                  int (*cb)(struct amdgpu_uvd_cs_ctx *ctx))
 833 {
 834         struct amdgpu_ib *ib = &ctx->parser->job->ibs[ctx->ib_idx];
 835         int r;
 836
 837         for (ctx->idx = 0 ; ctx->idx < ib->length_dw; ) {
 838                 uint32_t cmd = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->idx);
 839                 unsigned type = CP_PACKET_GET_TYPE(cmd);
 840                 switch (type) {
 841                 case PACKET_TYPE0:
 842                         ctx->reg = CP_PACKET0_GET_REG(cmd);
 843                         ctx->count = CP_PACKET_GET_COUNT(cmd);
 844                         r = amdgpu_uvd_cs_reg(ctx, cb);
 845                         if (r)
 846                                 return r;
 847                         break;
 848                 case PACKET_TYPE2:
 849                         ++ctx->idx;
 850                         break;
 851                 default:
 852                         DRM_ERROR("Unknown packet type %d !\n", type);
 853                         return -EINVAL;
 854                 }
 855         }
 856         return 0;
 857 }
 858
 859 /**
 860  * amdgpu_uvd_ring_parse_cs - UVD command submission parser
 861  *
 862  * @parser: Command submission parser context
 863  *
 864  * Parse the command stream, patch in addresses as necessary.
 865  */
 866 int amdgpu_uvd_ring_parse_cs(struct amdgpu_cs_parser *parser, uint32_t ib_idx)
 867 {
 868         struct amdgpu_uvd_cs_ctx ctx = {};
 869         unsigned buf_sizes[] = {
 870                 [0x00000000]    =       2048,
 871                 [0x00000001]    =       0xFFFFFFFF,
 872                 [0x00000002]    =       0xFFFFFFFF,
 873                 [0x00000003]    =       2048,
 874                 [0x00000004]    =       0xFFFFFFFF,
 875         };
 876         struct amdgpu_ib *ib = &parser->job->ibs[ib_idx];
 877         int r;
 878
 879         parser->job->vm = NULL;
 880         ib->gpu_addr = amdgpu_sa_bo_gpu_addr(ib->sa_bo);
 881
 882         if (ib->length_dw % 16) {
 883                 DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n",
 884                           ib->length_dw);
 885                 return -EINVAL;
 886         }
 887
 888         r = amdgpu_cs_sysvm_access_required(parser);
 889         if (r)
 890                 return r;
 891
 892         ctx.parser = parser;
 893         ctx.buf_sizes = buf_sizes;
 894         ctx.ib_idx = ib_idx;
 895
 896         /* first round, make sure the buffers are actually in the UVD segment */
 897         r = amdgpu_uvd_cs_packets(&ctx, amdgpu_uvd_cs_pass1);
 898         if (r)
 899                 return r;
 900
 901         /* second round, patch buffer addresses into the command stream */
 902         r = amdgpu_uvd_cs_packets(&ctx, amdgpu_uvd_cs_pass2);
 903         if (r)
 904                 return r;
 905
 906         if (!ctx.has_msg_cmd) {
 907                 DRM_ERROR("UVD-IBs need a msg command!\n");
 908                 return -EINVAL;
 909         }
 910
 911         return 0;
 912 }
 913
 914 static int amdgpu_uvd_send_msg(struct amdgpu_ring *ring, struct amdgpu_bo *bo,
 915                                bool direct, struct dma_fence **fence)
 916 {
 917         struct ttm_validate_buffer tv;
 918         struct ww_acquire_ctx ticket;
 919         struct list_head head;
 920         struct amdgpu_job *job;
 921         struct amdgpu_ib *ib;
 922         struct dma_fence *f = NULL;
 923         struct amdgpu_device *adev = ring->adev;
 924         uint64_t addr;
 925         int i, r;
 926
 927         memset(&tv, 0, sizeof(tv));
 928         tv.bo = &bo->tbo;
 929
 930         INIT_LIST_HEAD(&head);
 931         list_add(&tv.head, &head);
 932
 933         r = ttm_eu_reserve_buffers(&ticket, &head, true, NULL);
 934         if (r)
 935                 return r;
 936
 937         if (!ring->adev->uvd.address_64_bit) {
 938                 amdgpu_ttm_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_VRAM);
 939                 amdgpu_uvd_force_into_uvd_segment(bo);
 940         }
 941
 942         r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
 943         if (r)
 944                 goto err;
 945
 946         r = amdgpu_job_alloc_with_ib(adev, 64, &job);
 947         if (r)
 948                 goto err;
 949
 950         ib = &job->ibs[0];
 951         addr = amdgpu_bo_gpu_offset(bo);
 952         ib->ptr[0] = PACKET0(mmUVD_GPCOM_VCPU_DATA0, 0);
 953         ib->ptr[1] = addr;
 954         ib->ptr[2] = PACKET0(mmUVD_GPCOM_VCPU_DATA1, 0);
 955         ib->ptr[3] = addr >> 32;
 956         ib->ptr[4] = PACKET0(mmUVD_GPCOM_VCPU_CMD, 0);
 957         ib->ptr[5] = 0;
 958         for (i = 6; i < 16; i += 2) {
 959                 ib->ptr[i] = PACKET0(mmUVD_NO_OP, 0);
 960                 ib->ptr[i+1] = 0;
 961         }
 962         ib->length_dw = 16;
 963
 964         if (direct) {
 965                 r = amdgpu_ib_schedule(ring, 1, ib, NULL, NULL, &f);
 966                 job->fence = dma_fence_get(f);
 967                 if (r)
 968                         goto err_free;
 969
 970                 amdgpu_job_free(job);
 971         } else {
 972                 r = amdgpu_job_submit(job, ring, &adev->uvd.entity,
 973                                       AMDGPU_FENCE_OWNER_UNDEFINED, &f);
 974                 if (r)
 975                         goto err_free;
 976         }
 977
 978         ttm_eu_fence_buffer_objects(&ticket, &head, f);
 979
 980         if (fence)
 981                 *fence = dma_fence_get(f);
 982         amdgpu_bo_unref(&bo);
 983         dma_fence_put(f);
 984
 985         return 0;
 986
 987 err_free:
 988         amdgpu_job_free(job);
 989
 990 err:
 991         ttm_eu_backoff_reservation(&ticket, &head);
 992         return r;
 993 }
 994
 995 /* multiple fence commands without any stream commands in between can
 996    crash the vcpu so just try to emmit a dummy create/destroy msg to
 997    avoid this */
 998 int amdgpu_uvd_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
 999                               struct dma_fence **fence)
1000 {
1001         struct amdgpu_device *adev = ring->adev;
1002         struct amdgpu_bo *bo;
1003         uint32_t *msg;
1004         int r, i;
1005
1006         r = amdgpu_bo_create(adev, 1024, PAGE_SIZE, true,
1007                              AMDGPU_GEM_DOMAIN_VRAM,
1008                              AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED |
1009                              AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS,
1010                              NULL, NULL, &bo);
1011         if (r)
1012                 return r;
1013
1014         r = amdgpu_bo_reserve(bo, false);
1015         if (r) {
1016                 amdgpu_bo_unref(&bo);
1017                 return r;
1018         }
1019
1020         r = amdgpu_bo_kmap(bo, (void **)&msg);
1021         if (r) {
1022                 amdgpu_bo_unreserve(bo);
1023                 amdgpu_bo_unref(&bo);
1024                 return r;
1025         }
1026
1027         /* stitch together an UVD create msg */
1028         msg[0] = cpu_to_le32(0x00000de4);
1029         msg[1] = cpu_to_le32(0x00000000);
1030         msg[2] = cpu_to_le32(handle);
1031         msg[3] = cpu_to_le32(0x00000000);
1032         msg[4] = cpu_to_le32(0x00000000);
1033         msg[5] = cpu_to_le32(0x00000000);
1034         msg[6] = cpu_to_le32(0x00000000);
1035         msg[7] = cpu_to_le32(0x00000780);
1036         msg[8] = cpu_to_le32(0x00000440);
1037         msg[9] = cpu_to_le32(0x00000000);
1038         msg[10] = cpu_to_le32(0x01b37000);
1039         for (i = 11; i < 1024; ++i)
1040                 msg[i] = cpu_to_le32(0x0);
1041
1042         amdgpu_bo_kunmap(bo);
1043         amdgpu_bo_unreserve(bo);
1044
1045         return amdgpu_uvd_send_msg(ring, bo, true, fence);
1046 }
1047
1048 int amdgpu_uvd_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
1049                                bool direct, struct dma_fence **fence)
1050 {
1051         struct amdgpu_device *adev = ring->adev;
1052         struct amdgpu_bo *bo;
1053         uint32_t *msg;
1054         int r, i;
1055
1056         r = amdgpu_bo_create(adev, 1024, PAGE_SIZE, true,
1057                              AMDGPU_GEM_DOMAIN_VRAM,
1058                              AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED |
1059                              AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS,
1060                              NULL, NULL, &bo);
1061         if (r)
1062                 return r;
1063
1064         r = amdgpu_bo_reserve(bo, false);
1065         if (r) {
1066                 amdgpu_bo_unref(&bo);
1067                 return r;
1068         }
1069
1070         r = amdgpu_bo_kmap(bo, (void **)&msg);
1071         if (r) {
1072                 amdgpu_bo_unreserve(bo);
1073                 amdgpu_bo_unref(&bo);
1074                 return r;
1075         }
1076
1077         /* stitch together an UVD destroy msg */
1078         msg[0] = cpu_to_le32(0x00000de4);
1079         msg[1] = cpu_to_le32(0x00000002);
1080         msg[2] = cpu_to_le32(handle);
1081         msg[3] = cpu_to_le32(0x00000000);
1082         for (i = 4; i < 1024; ++i)
1083                 msg[i] = cpu_to_le32(0x0);
1084
1085         amdgpu_bo_kunmap(bo);
1086         amdgpu_bo_unreserve(bo);
1087
1088         return amdgpu_uvd_send_msg(ring, bo, direct, fence);
1089 }
1090
1091 static void amdgpu_uvd_idle_work_handler(struct work_struct *work)
1092 {
1093         struct amdgpu_device *adev =
1094                 container_of(work, struct amdgpu_device, uvd.idle_work.work);
1095         unsigned fences = amdgpu_fence_count_emitted(&adev->uvd.ring);
1096
1097         if (fences == 0) {
1098                 if (adev->pm.dpm_enabled) {
1099                         amdgpu_dpm_enable_uvd(adev, false);
1100                 } else {
1101                         amdgpu_asic_set_uvd_clocks(adev, 0, 0);
1102                 }
1103         } else {
1104                 schedule_delayed_work(&adev->uvd.idle_work, UVD_IDLE_TIMEOUT);
1105         }
1106 }
1107
1108 void amdgpu_uvd_ring_begin_use(struct amdgpu_ring *ring)
1109 {
1110         struct amdgpu_device *adev = ring->adev;
1111         bool set_clocks = !cancel_delayed_work_sync(&adev->uvd.idle_work);
1112
1113         if (set_clocks) {
1114                 if (adev->pm.dpm_enabled) {
1115                         amdgpu_dpm_enable_uvd(adev, true);
1116                 } else {
1117                         amdgpu_asic_set_uvd_clocks(adev, 53300, 40000);
1118                 }
1119         }
1120 }
1121
1122 void amdgpu_uvd_ring_end_use(struct amdgpu_ring *ring)
1123 {
1124         schedule_delayed_work(&ring->adev->uvd.idle_work, UVD_IDLE_TIMEOUT);
1125 }
1126
1127 /**
1128  * amdgpu_uvd_ring_test_ib - test ib execution
1129  *
1130  * @ring: amdgpu_ring pointer
1131  *
1132  * Test if we can successfully execute an IB
1133  */
1134 int amdgpu_uvd_ring_test_ib(struct amdgpu_ring *ring, long timeout)
1135 {
1136         struct dma_fence *fence;
1137         long r;
1138
1139         r = amdgpu_uvd_get_create_msg(ring, 1, NULL);
1140         if (r) {
1141                 DRM_ERROR("amdgpu: failed to get create msg (%ld).\n", r);
1142                 goto error;
1143         }
1144
1145         r = amdgpu_uvd_get_destroy_msg(ring, 1, true, &fence);
1146         if (r) {
1147                 DRM_ERROR("amdgpu: failed to get destroy ib (%ld).\n", r);
1148                 goto error;
1149         }
1150
1151         r = dma_fence_wait_timeout(fence, false, timeout);
1152         if (r == 0) {
1153                 DRM_ERROR("amdgpu: IB test timed out.\n");
1154                 r = -ETIMEDOUT;
1155         } else if (r < 0) {
1156                 DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
1157         } else {
1158                 DRM_INFO("ib test on ring %d succeeded\n",  ring->idx);
1159                 r = 0;
1160         }
1161
1162         dma_fence_put(fence);
1163
1164 error:
1165         return r;
1166 }