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
  34 #include <drm/drm.h>
  35 #include <drm/drm_drv.h>
  36
  37 #include "amdgpu.h"
  38 #include "amdgpu_pm.h"
  39 #include "amdgpu_uvd.h"
  40 #include "cikd.h"
  41 #include "uvd/uvd_4_2_d.h"
  42
  43 #include "amdgpu_ras.h"
  44
  45 /* 1 second timeout */
  46 #define UVD_IDLE_TIMEOUT        msecs_to_jiffies(1000)
  47
  48 /* Firmware versions for VI */
  49 #define FW_1_65_10      ((1 << 24) | (65 << 16) | (10 << 8))
  50 #define FW_1_87_11      ((1 << 24) | (87 << 16) | (11 << 8))
  51 #define FW_1_87_12      ((1 << 24) | (87 << 16) | (12 << 8))
  52 #define FW_1_37_15      ((1 << 24) | (37 << 16) | (15 << 8))
  53
  54 /* Polaris10/11 firmware version */
  55 #define FW_1_66_16      ((1 << 24) | (66 << 16) | (16 << 8))
  56
  57 /* Firmware Names */
  58 #ifdef CONFIG_DRM_AMDGPU_SI
  59 #define FIRMWARE_TAHITI         "amdgpu/tahiti_uvd.bin"
  60 #define FIRMWARE_VERDE          "amdgpu/verde_uvd.bin"
  61 #define FIRMWARE_PITCAIRN       "amdgpu/pitcairn_uvd.bin"
  62 #define FIRMWARE_OLAND          "amdgpu/oland_uvd.bin"
  63 #endif
  64 #ifdef CONFIG_DRM_AMDGPU_CIK
  65 #define FIRMWARE_BONAIRE        "amdgpu/bonaire_uvd.bin"
  66 #define FIRMWARE_KABINI "amdgpu/kabini_uvd.bin"
  67 #define FIRMWARE_KAVERI "amdgpu/kaveri_uvd.bin"
  68 #define FIRMWARE_HAWAII "amdgpu/hawaii_uvd.bin"
  69 #define FIRMWARE_MULLINS        "amdgpu/mullins_uvd.bin"
  70 #endif
  71 #define FIRMWARE_TONGA          "amdgpu/tonga_uvd.bin"
  72 #define FIRMWARE_CARRIZO        "amdgpu/carrizo_uvd.bin"
  73 #define FIRMWARE_FIJI           "amdgpu/fiji_uvd.bin"
  74 #define FIRMWARE_STONEY         "amdgpu/stoney_uvd.bin"
  75 #define FIRMWARE_POLARIS10      "amdgpu/polaris10_uvd.bin"
  76 #define FIRMWARE_POLARIS11      "amdgpu/polaris11_uvd.bin"
  77 #define FIRMWARE_POLARIS12      "amdgpu/polaris12_uvd.bin"
  78 #define FIRMWARE_VEGAM          "amdgpu/vegam_uvd.bin"
  79
  80 #define FIRMWARE_VEGA10         "amdgpu/vega10_uvd.bin"
  81 #define FIRMWARE_VEGA12         "amdgpu/vega12_uvd.bin"
  82 #define FIRMWARE_VEGA20         "amdgpu/vega20_uvd.bin"
  83
  84 /* These are common relative offsets for all asics, from uvd_7_0_offset.h,  */
  85 #define UVD_GPCOM_VCPU_CMD              0x03c3
  86 #define UVD_GPCOM_VCPU_DATA0    0x03c4
  87 #define UVD_GPCOM_VCPU_DATA1    0x03c5
  88 #define UVD_NO_OP                               0x03ff
  89 #define UVD_BASE_SI                             0x3800
  90
  91 /*
  92  * amdgpu_uvd_cs_ctx - Command submission parser context
  93  *
  94  * Used for emulating virtual memory support on UVD 4.2.
  95  */
  96 struct amdgpu_uvd_cs_ctx {
  97         struct amdgpu_cs_parser *parser;
  98         unsigned reg, count;
  99         unsigned data0, data1;
 100         unsigned idx;
 101         unsigned ib_idx;
 102
 103         /* does the IB has a msg command */
 104         bool has_msg_cmd;
 105
 106         /* minimum buffer sizes */
 107         unsigned *buf_sizes;
 108 };
 109
 110 #ifdef CONFIG_DRM_AMDGPU_SI
 111 MODULE_FIRMWARE(FIRMWARE_TAHITI);
 112 MODULE_FIRMWARE(FIRMWARE_VERDE);
 113 MODULE_FIRMWARE(FIRMWARE_PITCAIRN);
 114 MODULE_FIRMWARE(FIRMWARE_OLAND);
 115 #endif
 116 #ifdef CONFIG_DRM_AMDGPU_CIK
 117 MODULE_FIRMWARE(FIRMWARE_BONAIRE);
 118 MODULE_FIRMWARE(FIRMWARE_KABINI);
 119 MODULE_FIRMWARE(FIRMWARE_KAVERI);
 120 MODULE_FIRMWARE(FIRMWARE_HAWAII);
 121 MODULE_FIRMWARE(FIRMWARE_MULLINS);
 122 #endif
 123 MODULE_FIRMWARE(FIRMWARE_TONGA);
 124 MODULE_FIRMWARE(FIRMWARE_CARRIZO);
 125 MODULE_FIRMWARE(FIRMWARE_FIJI);
 126 MODULE_FIRMWARE(FIRMWARE_STONEY);
 127 MODULE_FIRMWARE(FIRMWARE_POLARIS10);
 128 MODULE_FIRMWARE(FIRMWARE_POLARIS11);
 129 MODULE_FIRMWARE(FIRMWARE_POLARIS12);
 130 MODULE_FIRMWARE(FIRMWARE_VEGAM);
 131
 132 MODULE_FIRMWARE(FIRMWARE_VEGA10);
 133 MODULE_FIRMWARE(FIRMWARE_VEGA12);
 134 MODULE_FIRMWARE(FIRMWARE_VEGA20);
 135
 136 static void amdgpu_uvd_idle_work_handler(struct work_struct *work);
 137
 138 int amdgpu_uvd_sw_init(struct amdgpu_device *adev)
 139 {
 140         unsigned long bo_size;
 141         const char *fw_name;
 142         const struct common_firmware_header *hdr;
 143         unsigned family_id;
 144         int i, j, r;
 145
 146         INIT_DELAYED_WORK(&adev->uvd.idle_work, amdgpu_uvd_idle_work_handler);
 147
 148         switch (adev->asic_type) {
 149 #ifdef CONFIG_DRM_AMDGPU_SI
 150         case CHIP_TAHITI:
 151                 fw_name = FIRMWARE_TAHITI;
 152                 break;
 153         case CHIP_VERDE:
 154                 fw_name = FIRMWARE_VERDE;
 155                 break;
 156         case CHIP_PITCAIRN:
 157                 fw_name = FIRMWARE_PITCAIRN;
 158                 break;
 159         case CHIP_OLAND:
 160                 fw_name = FIRMWARE_OLAND;
 161                 break;
 162 #endif
 163 #ifdef CONFIG_DRM_AMDGPU_CIK
 164         case CHIP_BONAIRE:
 165                 fw_name = FIRMWARE_BONAIRE;
 166                 break;
 167         case CHIP_KABINI:
 168                 fw_name = FIRMWARE_KABINI;
 169                 break;
 170         case CHIP_KAVERI:
 171                 fw_name = FIRMWARE_KAVERI;
 172                 break;
 173         case CHIP_HAWAII:
 174                 fw_name = FIRMWARE_HAWAII;
 175                 break;
 176         case CHIP_MULLINS:
 177                 fw_name = FIRMWARE_MULLINS;
 178                 break;
 179 #endif
 180         case CHIP_TONGA:
 181                 fw_name = FIRMWARE_TONGA;
 182                 break;
 183         case CHIP_FIJI:
 184                 fw_name = FIRMWARE_FIJI;
 185                 break;
 186         case CHIP_CARRIZO:
 187                 fw_name = FIRMWARE_CARRIZO;
 188                 break;
 189         case CHIP_STONEY:
 190                 fw_name = FIRMWARE_STONEY;
 191                 break;
 192         case CHIP_POLARIS10:
 193                 fw_name = FIRMWARE_POLARIS10;
 194                 break;
 195         case CHIP_POLARIS11:
 196                 fw_name = FIRMWARE_POLARIS11;
 197                 break;
 198         case CHIP_POLARIS12:
 199                 fw_name = FIRMWARE_POLARIS12;
 200                 break;
 201         case CHIP_VEGA10:
 202                 fw_name = FIRMWARE_VEGA10;
 203                 break;
 204         case CHIP_VEGA12:
 205                 fw_name = FIRMWARE_VEGA12;
 206                 break;
 207         case CHIP_VEGAM:
 208                 fw_name = FIRMWARE_VEGAM;
 209                 break;
 210         case CHIP_VEGA20:
 211                 fw_name = FIRMWARE_VEGA20;
 212                 break;
 213         default:
 214                 return -EINVAL;
 215         }
 216
 217         r = request_firmware(&adev->uvd.fw, fw_name, adev->dev);
 218         if (r) {
 219                 dev_err(adev->dev, "amdgpu_uvd: Can't load firmware \"%s\"\n",
 220                         fw_name);
 221                 return r;
 222         }
 223
 224         r = amdgpu_ucode_validate(adev->uvd.fw);
 225         if (r) {
 226                 dev_err(adev->dev, "amdgpu_uvd: Can't validate firmware \"%s\"\n",
 227                         fw_name);
 228                 release_firmware(adev->uvd.fw);
 229                 adev->uvd.fw = NULL;
 230                 return r;
 231         }
 232
 233         /* Set the default UVD handles that the firmware can handle */
 234         adev->uvd.max_handles = AMDGPU_DEFAULT_UVD_HANDLES;
 235
 236         hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
 237         family_id = le32_to_cpu(hdr->ucode_version) & 0xff;
 238
 239         if (adev->asic_type < CHIP_VEGA20) {
 240                 unsigned version_major, version_minor;
 241
 242                 version_major = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xff;
 243                 version_minor = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff;
 244                 DRM_INFO("Found UVD firmware Version: %u.%u Family ID: %u\n",
 245                         version_major, version_minor, family_id);
 246
 247                 /*
 248                  * Limit the number of UVD handles depending on microcode major
 249                  * and minor versions. The firmware version which has 40 UVD
 250                  * instances support is 1.80. So all subsequent versions should
 251                  * also have the same support.
 252                  */
 253                 if ((version_major > 0x01) ||
 254                     ((version_major == 0x01) && (version_minor >= 0x50)))
 255                         adev->uvd.max_handles = AMDGPU_MAX_UVD_HANDLES;
 256
 257                 adev->uvd.fw_version = ((version_major << 24) | (version_minor << 16) |
 258                                         (family_id << 8));
 259
 260                 if ((adev->asic_type == CHIP_POLARIS10 ||
 261                      adev->asic_type == CHIP_POLARIS11) &&
 262                     (adev->uvd.fw_version < FW_1_66_16))
 263                         DRM_ERROR("POLARIS10/11 UVD firmware version %u.%u is too old.\n",
 264                                   version_major, version_minor);
 265         } else {
 266                 unsigned int enc_major, enc_minor, dec_minor;
 267
 268                 dec_minor = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff;
 269                 enc_minor = (le32_to_cpu(hdr->ucode_version) >> 24) & 0x3f;
 270                 enc_major = (le32_to_cpu(hdr->ucode_version) >> 30) & 0x3;
 271                 DRM_INFO("Found UVD firmware ENC: %u.%u DEC: .%u Family ID: %u\n",
 272                         enc_major, enc_minor, dec_minor, family_id);
 273
 274                 adev->uvd.max_handles = AMDGPU_MAX_UVD_HANDLES;
 275
 276                 adev->uvd.fw_version = le32_to_cpu(hdr->ucode_version);
 277         }
 278
 279         bo_size = AMDGPU_UVD_STACK_SIZE + AMDGPU_UVD_HEAP_SIZE
 280                   +  AMDGPU_UVD_SESSION_SIZE * adev->uvd.max_handles;
 281         if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP)
 282                 bo_size += AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(hdr->ucode_size_bytes) + 8);
 283
 284         for (j = 0; j < adev->uvd.num_uvd_inst; j++) {
 285                 if (adev->uvd.harvest_config & (1 << j))
 286                         continue;
 287                 r = amdgpu_bo_create_kernel(adev, bo_size, PAGE_SIZE,
 288                                             AMDGPU_GEM_DOMAIN_VRAM, &adev->uvd.inst[j].vcpu_bo,
 289                                             &adev->uvd.inst[j].gpu_addr, &adev->uvd.inst[j].cpu_addr);
 290                 if (r) {
 291                         dev_err(adev->dev, "(%d) failed to allocate UVD bo\n", r);
 292                         return r;
 293                 }
 294         }
 295
 296         for (i = 0; i < adev->uvd.max_handles; ++i) {
 297                 atomic_set(&adev->uvd.handles[i], 0);
 298                 adev->uvd.filp[i] = NULL;
 299         }
 300
 301         /* from uvd v5.0 HW addressing capacity increased to 64 bits */
 302         if (!amdgpu_device_ip_block_version_cmp(adev, AMD_IP_BLOCK_TYPE_UVD, 5, 0))
 303                 adev->uvd.address_64_bit = true;
 304
 305         switch (adev->asic_type) {
 306         case CHIP_TONGA:
 307                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_65_10;
 308                 break;
 309         case CHIP_CARRIZO:
 310                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_87_11;
 311                 break;
 312         case CHIP_FIJI:
 313                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_87_12;
 314                 break;
 315         case CHIP_STONEY:
 316                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_37_15;
 317                 break;
 318         default:
 319                 adev->uvd.use_ctx_buf = adev->asic_type >= CHIP_POLARIS10;
 320         }
 321
 322         return 0;
 323 }
 324
 325 int amdgpu_uvd_sw_fini(struct amdgpu_device *adev)
 326 {
 327         int i, j;
 328
 329         drm_sched_entity_destroy(&adev->uvd.entity);
 330
 331         for (j = 0; j < adev->uvd.num_uvd_inst; ++j) {
 332                 if (adev->uvd.harvest_config & (1 << j))
 333                         continue;
 334                 kvfree(adev->uvd.inst[j].saved_bo);
 335
 336                 amdgpu_bo_free_kernel(&adev->uvd.inst[j].vcpu_bo,
 337                                       &adev->uvd.inst[j].gpu_addr,
 338                                       (void **)&adev->uvd.inst[j].cpu_addr);
 339
 340                 amdgpu_ring_fini(&adev->uvd.inst[j].ring);
 341
 342                 for (i = 0; i < AMDGPU_MAX_UVD_ENC_RINGS; ++i)
 343                         amdgpu_ring_fini(&adev->uvd.inst[j].ring_enc[i]);
 344         }
 345         release_firmware(adev->uvd.fw);
 346
 347         return 0;
 348 }
 349
 350 /**
 351  * amdgpu_uvd_entity_init - init entity
 352  *
 353  * @adev: amdgpu_device pointer
 354  *
 355  */
 356 int amdgpu_uvd_entity_init(struct amdgpu_device *adev)
 357 {
 358         struct amdgpu_ring *ring;
 359         struct drm_gpu_scheduler *sched;
 360         int r;
 361
 362         ring = &adev->uvd.inst[0].ring;
 363         sched = &ring->sched;
 364         r = drm_sched_entity_init(&adev->uvd.entity, DRM_SCHED_PRIORITY_NORMAL,
 365                                   &sched, 1, NULL);
 366         if (r) {
 367                 DRM_ERROR("Failed setting up UVD kernel entity.\n");
 368                 return r;
 369         }
 370
 371         return 0;
 372 }
 373
 374 int amdgpu_uvd_suspend(struct amdgpu_device *adev)
 375 {
 376         unsigned size;
 377         void *ptr;
 378         int i, j, idx;
 379         bool in_ras_intr = amdgpu_ras_intr_triggered();
 380
 381         cancel_delayed_work_sync(&adev->uvd.idle_work);
 382
 383         /* only valid for physical mode */
 384         if (adev->asic_type < CHIP_POLARIS10) {
 385                 for (i = 0; i < adev->uvd.max_handles; ++i)
 386                         if (atomic_read(&adev->uvd.handles[i]))
 387                                 break;
 388
 389                 if (i == adev->uvd.max_handles)
 390                         return 0;
 391         }
 392
 393         for (j = 0; j < adev->uvd.num_uvd_inst; ++j) {
 394                 if (adev->uvd.harvest_config & (1 << j))
 395                         continue;
 396                 if (adev->uvd.inst[j].vcpu_bo == NULL)
 397                         continue;
 398
 399                 size = amdgpu_bo_size(adev->uvd.inst[j].vcpu_bo);
 400                 ptr = adev->uvd.inst[j].cpu_addr;
 401
 402                 adev->uvd.inst[j].saved_bo = kvmalloc(size, GFP_KERNEL);
 403                 if (!adev->uvd.inst[j].saved_bo)
 404                         return -ENOMEM;
 405
 406                 if (drm_dev_enter(&adev->ddev, &idx)) {
 407                         /* re-write 0 since err_event_athub will corrupt VCPU buffer */
 408                         if (in_ras_intr)
 409                                 memset(adev->uvd.inst[j].saved_bo, 0, size);
 410                         else
 411                                 memcpy_fromio(adev->uvd.inst[j].saved_bo, ptr, size);
 412
 413                         drm_dev_exit(idx);
 414                 }
 415         }
 416
 417         if (in_ras_intr)
 418                 DRM_WARN("UVD VCPU state may lost due to RAS ERREVENT_ATHUB_INTERRUPT\n");
 419
 420         return 0;
 421 }
 422
 423 int amdgpu_uvd_resume(struct amdgpu_device *adev)
 424 {
 425         unsigned size;
 426         void *ptr;
 427         int i, idx;
 428
 429         for (i = 0; i < adev->uvd.num_uvd_inst; i++) {
 430                 if (adev->uvd.harvest_config & (1 << i))
 431                         continue;
 432                 if (adev->uvd.inst[i].vcpu_bo == NULL)
 433                         return -EINVAL;
 434
 435                 size = amdgpu_bo_size(adev->uvd.inst[i].vcpu_bo);
 436                 ptr = adev->uvd.inst[i].cpu_addr;
 437
 438                 if (adev->uvd.inst[i].saved_bo != NULL) {
 439                         if (drm_dev_enter(&adev->ddev, &idx)) {
 440                                 memcpy_toio(ptr, adev->uvd.inst[i].saved_bo, size);
 441                                 drm_dev_exit(idx);
 442                         }
 443                         kvfree(adev->uvd.inst[i].saved_bo);
 444                         adev->uvd.inst[i].saved_bo = NULL;
 445                 } else {
 446                         const struct common_firmware_header *hdr;
 447                         unsigned offset;
 448
 449                         hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
 450                         if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
 451                                 offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
 452                                 if (drm_dev_enter(&adev->ddev, &idx)) {
 453                                         memcpy_toio(adev->uvd.inst[i].cpu_addr, adev->uvd.fw->data + offset,
 454                                                     le32_to_cpu(hdr->ucode_size_bytes));
 455                                         drm_dev_exit(idx);
 456                                 }
 457                                 size -= le32_to_cpu(hdr->ucode_size_bytes);
 458                                 ptr += le32_to_cpu(hdr->ucode_size_bytes);
 459                         }
 460                         memset_io(ptr, 0, size);
 461                         /* to restore uvd fence seq */
 462                         amdgpu_fence_driver_force_completion(&adev->uvd.inst[i].ring);
 463                 }
 464         }
 465         return 0;
 466 }
 467
 468 void amdgpu_uvd_free_handles(struct amdgpu_device *adev, struct drm_file *filp)
 469 {
 470         struct amdgpu_ring *ring = &adev->uvd.inst[0].ring;
 471         int i, r;
 472
 473         for (i = 0; i < adev->uvd.max_handles; ++i) {
 474                 uint32_t handle = atomic_read(&adev->uvd.handles[i]);
 475
 476                 if (handle != 0 && adev->uvd.filp[i] == filp) {
 477                         struct dma_fence *fence;
 478
 479                         r = amdgpu_uvd_get_destroy_msg(ring, handle, false,
 480                                                        &fence);
 481                         if (r) {
 482                                 DRM_ERROR("Error destroying UVD %d!\n", r);
 483                                 continue;
 484                         }
 485
 486                         dma_fence_wait(fence, false);
 487                         dma_fence_put(fence);
 488
 489                         adev->uvd.filp[i] = NULL;
 490                         atomic_set(&adev->uvd.handles[i], 0);
 491                 }
 492         }
 493 }
 494
 495 static void amdgpu_uvd_force_into_uvd_segment(struct amdgpu_bo *abo)
 496 {
 497         int i;
 498         for (i = 0; i < abo->placement.num_placement; ++i) {
 499                 abo->placements[i].fpfn = 0 >> PAGE_SHIFT;
 500                 abo->placements[i].lpfn = (256 * 1024 * 1024) >> PAGE_SHIFT;
 501         }
 502 }
 503
 504 static u64 amdgpu_uvd_get_addr_from_ctx(struct amdgpu_uvd_cs_ctx *ctx)
 505 {
 506         uint32_t lo, hi;
 507         uint64_t addr;
 508
 509         lo = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->data0);
 510         hi = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->data1);
 511         addr = ((uint64_t)lo) | (((uint64_t)hi) << 32);
 512
 513         return addr;
 514 }
 515
 516 /**
 517  * amdgpu_uvd_cs_pass1 - first parsing round
 518  *
 519  * @ctx: UVD parser context
 520  *
 521  * Make sure UVD message and feedback buffers are in VRAM and
 522  * nobody is violating an 256MB boundary.
 523  */
 524 static int amdgpu_uvd_cs_pass1(struct amdgpu_uvd_cs_ctx *ctx)
 525 {
 526         struct ttm_operation_ctx tctx = { false, false };
 527         struct amdgpu_bo_va_mapping *mapping;
 528         struct amdgpu_bo *bo;
 529         uint32_t cmd;
 530         uint64_t addr = amdgpu_uvd_get_addr_from_ctx(ctx);
 531         int r = 0;
 532
 533         r = amdgpu_cs_find_mapping(ctx->parser, addr, &bo, &mapping);
 534         if (r) {
 535                 DRM_ERROR("Can't find BO for addr 0x%08Lx\n", addr);
 536                 return r;
 537         }
 538
 539         if (!ctx->parser->adev->uvd.address_64_bit) {
 540                 /* check if it's a message or feedback command */
 541                 cmd = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->idx) >> 1;
 542                 if (cmd == 0x0 || cmd == 0x3) {
 543                         /* yes, force it into VRAM */
 544                         uint32_t domain = AMDGPU_GEM_DOMAIN_VRAM;
 545                         amdgpu_bo_placement_from_domain(bo, domain);
 546                 }
 547                 amdgpu_uvd_force_into_uvd_segment(bo);
 548
 549                 r = ttm_bo_validate(&bo->tbo, &bo->placement, &tctx);
 550         }
 551
 552         return r;
 553 }
 554
 555 /**
 556  * amdgpu_uvd_cs_msg_decode - handle UVD decode message
 557  *
 558  * @adev: amdgpu_device pointer
 559  * @msg: pointer to message structure
 560  * @buf_sizes: placeholder to put the different buffer lengths
 561  *
 562  * Peek into the decode message and calculate the necessary buffer sizes.
 563  */
 564 static int amdgpu_uvd_cs_msg_decode(struct amdgpu_device *adev, uint32_t *msg,
 565         unsigned buf_sizes[])
 566 {
 567         unsigned stream_type = msg[4];
 568         unsigned width = msg[6];
 569         unsigned height = msg[7];
 570         unsigned dpb_size = msg[9];
 571         unsigned pitch = msg[28];
 572         unsigned level = msg[57];
 573
 574         unsigned width_in_mb = width / 16;
 575         unsigned height_in_mb = ALIGN(height / 16, 2);
 576         unsigned fs_in_mb = width_in_mb * height_in_mb;
 577
 578         unsigned image_size, tmp, min_dpb_size, num_dpb_buffer;
 579         unsigned min_ctx_size = ~0;
 580
 581         image_size = width * height;
 582         image_size += image_size / 2;
 583         image_size = ALIGN(image_size, 1024);
 584
 585         switch (stream_type) {
 586         case 0: /* H264 */
 587                 switch(level) {
 588                 case 30:
 589                         num_dpb_buffer = 8100 / fs_in_mb;
 590                         break;
 591                 case 31:
 592                         num_dpb_buffer = 18000 / fs_in_mb;
 593                         break;
 594                 case 32:
 595                         num_dpb_buffer = 20480 / fs_in_mb;
 596                         break;
 597                 case 41:
 598                         num_dpb_buffer = 32768 / fs_in_mb;
 599                         break;
 600                 case 42:
 601                         num_dpb_buffer = 34816 / fs_in_mb;
 602                         break;
 603                 case 50:
 604                         num_dpb_buffer = 110400 / fs_in_mb;
 605                         break;
 606                 case 51:
 607                         num_dpb_buffer = 184320 / fs_in_mb;
 608                         break;
 609                 default:
 610                         num_dpb_buffer = 184320 / fs_in_mb;
 611                         break;
 612                 }
 613                 num_dpb_buffer++;
 614                 if (num_dpb_buffer > 17)
 615                         num_dpb_buffer = 17;
 616
 617                 /* reference picture buffer */
 618                 min_dpb_size = image_size * num_dpb_buffer;
 619
 620                 /* macroblock context buffer */
 621                 min_dpb_size += width_in_mb * height_in_mb * num_dpb_buffer * 192;
 622
 623                 /* IT surface buffer */
 624                 min_dpb_size += width_in_mb * height_in_mb * 32;
 625                 break;
 626
 627         case 1: /* VC1 */
 628
 629                 /* reference picture buffer */
 630                 min_dpb_size = image_size * 3;
 631
 632                 /* CONTEXT_BUFFER */
 633                 min_dpb_size += width_in_mb * height_in_mb * 128;
 634
 635                 /* IT surface buffer */
 636                 min_dpb_size += width_in_mb * 64;
 637
 638                 /* DB surface buffer */
 639                 min_dpb_size += width_in_mb * 128;
 640
 641                 /* BP */
 642                 tmp = max(width_in_mb, height_in_mb);
 643                 min_dpb_size += ALIGN(tmp * 7 * 16, 64);
 644                 break;
 645
 646         case 3: /* MPEG2 */
 647
 648                 /* reference picture buffer */
 649                 min_dpb_size = image_size * 3;
 650                 break;
 651
 652         case 4: /* MPEG4 */
 653
 654                 /* reference picture buffer */
 655                 min_dpb_size = image_size * 3;
 656
 657                 /* CM */
 658                 min_dpb_size += width_in_mb * height_in_mb * 64;
 659
 660                 /* IT surface buffer */
 661                 min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64);
 662                 break;
 663
 664         case 7: /* H264 Perf */
 665                 switch(level) {
 666                 case 30:
 667                         num_dpb_buffer = 8100 / fs_in_mb;
 668                         break;
 669                 case 31:
 670                         num_dpb_buffer = 18000 / fs_in_mb;
 671                         break;
 672                 case 32:
 673                         num_dpb_buffer = 20480 / fs_in_mb;
 674                         break;
 675                 case 41:
 676                         num_dpb_buffer = 32768 / fs_in_mb;
 677                         break;
 678                 case 42:
 679                         num_dpb_buffer = 34816 / fs_in_mb;
 680                         break;
 681                 case 50:
 682                         num_dpb_buffer = 110400 / fs_in_mb;
 683                         break;
 684                 case 51:
 685                         num_dpb_buffer = 184320 / fs_in_mb;
 686                         break;
 687                 default:
 688                         num_dpb_buffer = 184320 / fs_in_mb;
 689                         break;
 690                 }
 691                 num_dpb_buffer++;
 692                 if (num_dpb_buffer > 17)
 693                         num_dpb_buffer = 17;
 694
 695                 /* reference picture buffer */
 696                 min_dpb_size = image_size * num_dpb_buffer;
 697
 698                 if (!adev->uvd.use_ctx_buf){
 699                         /* macroblock context buffer */
 700                         min_dpb_size +=
 701                                 width_in_mb * height_in_mb * num_dpb_buffer * 192;
 702
 703                         /* IT surface buffer */
 704                         min_dpb_size += width_in_mb * height_in_mb * 32;
 705                 } else {
 706                         /* macroblock context buffer */
 707                         min_ctx_size =
 708                                 width_in_mb * height_in_mb * num_dpb_buffer * 192;
 709                 }
 710                 break;
 711
 712         case 8: /* MJPEG */
 713                 min_dpb_size = 0;
 714                 break;
 715
 716         case 16: /* H265 */
 717                 image_size = (ALIGN(width, 16) * ALIGN(height, 16) * 3) / 2;
 718                 image_size = ALIGN(image_size, 256);
 719
 720                 num_dpb_buffer = (le32_to_cpu(msg[59]) & 0xff) + 2;
 721                 min_dpb_size = image_size * num_dpb_buffer;
 722                 min_ctx_size = ((width + 255) / 16) * ((height + 255) / 16)
 723                                            * 16 * num_dpb_buffer + 52 * 1024;
 724                 break;
 725
 726         default:
 727                 DRM_ERROR("UVD codec not handled %d!\n", stream_type);
 728                 return -EINVAL;
 729         }
 730
 731         if (width > pitch) {
 732                 DRM_ERROR("Invalid UVD decoding target pitch!\n");
 733                 return -EINVAL;
 734         }
 735
 736         if (dpb_size < min_dpb_size) {
 737                 DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n",
 738                           dpb_size, min_dpb_size);
 739                 return -EINVAL;
 740         }
 741
 742         buf_sizes[0x1] = dpb_size;
 743         buf_sizes[0x2] = image_size;
 744         buf_sizes[0x4] = min_ctx_size;
 745         /* store image width to adjust nb memory pstate */
 746         adev->uvd.decode_image_width = width;
 747         return 0;
 748 }
 749
 750 /**
 751  * amdgpu_uvd_cs_msg - handle UVD message
 752  *
 753  * @ctx: UVD parser context
 754  * @bo: buffer object containing the message
 755  * @offset: offset into the buffer object
 756  *
 757  * Peek into the UVD message and extract the session id.
 758  * Make sure that we don't open up to many sessions.
 759  */
 760 static int amdgpu_uvd_cs_msg(struct amdgpu_uvd_cs_ctx *ctx,
 761                              struct amdgpu_bo *bo, unsigned offset)
 762 {
 763         struct amdgpu_device *adev = ctx->parser->adev;
 764         int32_t *msg, msg_type, handle;
 765         void *ptr;
 766         long r;
 767         int i;
 768
 769         if (offset & 0x3F) {
 770                 DRM_ERROR("UVD messages must be 64 byte aligned!\n");
 771                 return -EINVAL;
 772         }
 773
 774         r = amdgpu_bo_kmap(bo, &ptr);
 775         if (r) {
 776                 DRM_ERROR("Failed mapping the UVD) message (%ld)!\n", r);
 777                 return r;
 778         }
 779
 780         msg = ptr + offset;
 781
 782         msg_type = msg[1];
 783         handle = msg[2];
 784
 785         if (handle == 0) {
 786                 DRM_ERROR("Invalid UVD handle!\n");
 787                 return -EINVAL;
 788         }
 789
 790         switch (msg_type) {
 791         case 0:
 792                 /* it's a create msg, calc image size (width * height) */
 793                 amdgpu_bo_kunmap(bo);
 794
 795                 /* try to alloc a new handle */
 796                 for (i = 0; i < adev->uvd.max_handles; ++i) {
 797                         if (atomic_read(&adev->uvd.handles[i]) == handle) {
 798                                 DRM_ERROR(")Handle 0x%x already in use!\n",
 799                                           handle);
 800                                 return -EINVAL;
 801                         }
 802
 803                         if (!atomic_cmpxchg(&adev->uvd.handles[i], 0, handle)) {
 804                                 adev->uvd.filp[i] = ctx->parser->filp;
 805                                 return 0;
 806                         }
 807                 }
 808
 809                 DRM_ERROR("No more free UVD handles!\n");
 810                 return -ENOSPC;
 811
 812         case 1:
 813                 /* it's a decode msg, calc buffer sizes */
 814                 r = amdgpu_uvd_cs_msg_decode(adev, msg, ctx->buf_sizes);
 815                 amdgpu_bo_kunmap(bo);
 816                 if (r)
 817                         return r;
 818
 819                 /* validate the handle */
 820                 for (i = 0; i < adev->uvd.max_handles; ++i) {
 821                         if (atomic_read(&adev->uvd.handles[i]) == handle) {
 822                                 if (adev->uvd.filp[i] != ctx->parser->filp) {
 823                                         DRM_ERROR("UVD handle collision detected!\n");
 824                                         return -EINVAL;
 825                                 }
 826                                 return 0;
 827                         }
 828                 }
 829
 830                 DRM_ERROR("Invalid UVD handle 0x%x!\n", handle);
 831                 return -ENOENT;
 832
 833         case 2:
 834                 /* it's a destroy msg, free the handle */
 835                 for (i = 0; i < adev->uvd.max_handles; ++i)
 836                         atomic_cmpxchg(&adev->uvd.handles[i], handle, 0);
 837                 amdgpu_bo_kunmap(bo);
 838                 return 0;
 839
 840         default:
 841                 DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
 842         }
 843
 844         return -EINVAL;
 845 }
 846
 847 /**
 848  * amdgpu_uvd_cs_pass2 - second parsing round
 849  *
 850  * @ctx: UVD parser context
 851  *
 852  * Patch buffer addresses, make sure buffer sizes are correct.
 853  */
 854 static int amdgpu_uvd_cs_pass2(struct amdgpu_uvd_cs_ctx *ctx)
 855 {
 856         struct amdgpu_bo_va_mapping *mapping;
 857         struct amdgpu_bo *bo;
 858         uint32_t cmd;
 859         uint64_t start, end;
 860         uint64_t addr = amdgpu_uvd_get_addr_from_ctx(ctx);
 861         int r;
 862
 863         r = amdgpu_cs_find_mapping(ctx->parser, addr, &bo, &mapping);
 864         if (r) {
 865                 DRM_ERROR("Can't find BO for addr 0x%08Lx\n", addr);
 866                 return r;
 867         }
 868
 869         start = amdgpu_bo_gpu_offset(bo);
 870
 871         end = (mapping->last + 1 - mapping->start);
 872         end = end * AMDGPU_GPU_PAGE_SIZE + start;
 873
 874         addr -= mapping->start * AMDGPU_GPU_PAGE_SIZE;
 875         start += addr;
 876
 877         amdgpu_set_ib_value(ctx->parser, ctx->ib_idx, ctx->data0,
 878                             lower_32_bits(start));
 879         amdgpu_set_ib_value(ctx->parser, ctx->ib_idx, ctx->data1,
 880                             upper_32_bits(start));
 881
 882         cmd = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->idx) >> 1;
 883         if (cmd < 0x4) {
 884                 if ((end - start) < ctx->buf_sizes[cmd]) {
 885                         DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
 886                                   (unsigned)(end - start),
 887                                   ctx->buf_sizes[cmd]);
 888                         return -EINVAL;
 889                 }
 890
 891         } else if (cmd == 0x206) {
 892                 if ((end - start) < ctx->buf_sizes[4]) {
 893                         DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
 894                                           (unsigned)(end - start),
 895                                           ctx->buf_sizes[4]);
 896                         return -EINVAL;
 897                 }
 898         } else if ((cmd != 0x100) && (cmd != 0x204)) {
 899                 DRM_ERROR("invalid UVD command %X!\n", cmd);
 900                 return -EINVAL;
 901         }
 902
 903         if (!ctx->parser->adev->uvd.address_64_bit) {
 904                 if ((start >> 28) != ((end - 1) >> 28)) {
 905                         DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
 906                                   start, end);
 907                         return -EINVAL;
 908                 }
 909
 910                 if ((cmd == 0 || cmd == 0x3) &&
 911                     (start >> 28) != (ctx->parser->adev->uvd.inst->gpu_addr >> 28)) {
 912                         DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n",
 913                                   start, end);
 914                         return -EINVAL;
 915                 }
 916         }
 917
 918         if (cmd == 0) {
 919                 ctx->has_msg_cmd = true;
 920                 r = amdgpu_uvd_cs_msg(ctx, bo, addr);
 921                 if (r)
 922                         return r;
 923         } else if (!ctx->has_msg_cmd) {
 924                 DRM_ERROR("Message needed before other commands are send!\n");
 925                 return -EINVAL;
 926         }
 927
 928         return 0;
 929 }
 930
 931 /**
 932  * amdgpu_uvd_cs_reg - parse register writes
 933  *
 934  * @ctx: UVD parser context
 935  * @cb: callback function
 936  *
 937  * Parse the register writes, call cb on each complete command.
 938  */
 939 static int amdgpu_uvd_cs_reg(struct amdgpu_uvd_cs_ctx *ctx,
 940                              int (*cb)(struct amdgpu_uvd_cs_ctx *ctx))
 941 {
 942         struct amdgpu_ib *ib = &ctx->parser->job->ibs[ctx->ib_idx];
 943         int i, r;
 944
 945         ctx->idx++;
 946         for (i = 0; i <= ctx->count; ++i) {
 947                 unsigned reg = ctx->reg + i;
 948
 949                 if (ctx->idx >= ib->length_dw) {
 950                         DRM_ERROR("Register command after end of CS!\n");
 951                         return -EINVAL;
 952                 }
 953
 954                 switch (reg) {
 955                 case mmUVD_GPCOM_VCPU_DATA0:
 956                         ctx->data0 = ctx->idx;
 957                         break;
 958                 case mmUVD_GPCOM_VCPU_DATA1:
 959                         ctx->data1 = ctx->idx;
 960                         break;
 961                 case mmUVD_GPCOM_VCPU_CMD:
 962                         r = cb(ctx);
 963                         if (r)
 964                                 return r;
 965                         break;
 966                 case mmUVD_ENGINE_CNTL:
 967                 case mmUVD_NO_OP:
 968                         break;
 969                 default:
 970                         DRM_ERROR("Invalid reg 0x%X!\n", reg);
 971                         return -EINVAL;
 972                 }
 973                 ctx->idx++;
 974         }
 975         return 0;
 976 }
 977
 978 /**
 979  * amdgpu_uvd_cs_packets - parse UVD packets
 980  *
 981  * @ctx: UVD parser context
 982  * @cb: callback function
 983  *
 984  * Parse the command stream packets.
 985  */
 986 static int amdgpu_uvd_cs_packets(struct amdgpu_uvd_cs_ctx *ctx,
 987                                  int (*cb)(struct amdgpu_uvd_cs_ctx *ctx))
 988 {
 989         struct amdgpu_ib *ib = &ctx->parser->job->ibs[ctx->ib_idx];
 990         int r;
 991
 992         for (ctx->idx = 0 ; ctx->idx < ib->length_dw; ) {
 993                 uint32_t cmd = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->idx);
 994                 unsigned type = CP_PACKET_GET_TYPE(cmd);
 995                 switch (type) {
 996                 case PACKET_TYPE0:
 997                         ctx->reg = CP_PACKET0_GET_REG(cmd);
 998                         ctx->count = CP_PACKET_GET_COUNT(cmd);
 999                         r = amdgpu_uvd_cs_reg(ctx, cb);
1000                         if (r)
1001                                 return r;
1002                         break;
1003                 case PACKET_TYPE2:
1004                         ++ctx->idx;
1005                         break;
1006                 default:
1007                         DRM_ERROR("Unknown packet type %d !\n", type);
1008                         return -EINVAL;
1009                 }
1010         }
1011         return 0;
1012 }
1013
1014 /**
1015  * amdgpu_uvd_ring_parse_cs - UVD command submission parser
1016  *
1017  * @parser: Command submission parser context
1018  * @ib_idx: Which indirect buffer to use
1019  *
1020  * Parse the command stream, patch in addresses as necessary.
1021  */
1022 int amdgpu_uvd_ring_parse_cs(struct amdgpu_cs_parser *parser, uint32_t ib_idx)
1023 {
1024         struct amdgpu_uvd_cs_ctx ctx = {};
1025         unsigned buf_sizes[] = {
1026                 [0x00000000]    =       2048,
1027                 [0x00000001]    =       0xFFFFFFFF,
1028                 [0x00000002]    =       0xFFFFFFFF,
1029                 [0x00000003]    =       2048,
1030                 [0x00000004]    =       0xFFFFFFFF,
1031         };
1032         struct amdgpu_ib *ib = &parser->job->ibs[ib_idx];
1033         int r;
1034
1035         parser->job->vm = NULL;
1036         ib->gpu_addr = amdgpu_sa_bo_gpu_addr(ib->sa_bo);
1037
1038         if (ib->length_dw % 16) {
1039                 DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n",
1040                           ib->length_dw);
1041                 return -EINVAL;
1042         }
1043
1044         ctx.parser = parser;
1045         ctx.buf_sizes = buf_sizes;
1046         ctx.ib_idx = ib_idx;
1047
1048         /* first round only required on chips without UVD 64 bit address support */
1049         if (!parser->adev->uvd.address_64_bit) {
1050                 /* first round, make sure the buffers are actually in the UVD segment */
1051                 r = amdgpu_uvd_cs_packets(&ctx, amdgpu_uvd_cs_pass1);
1052                 if (r)
1053                         return r;
1054         }
1055
1056         /* second round, patch buffer addresses into the command stream */
1057         r = amdgpu_uvd_cs_packets(&ctx, amdgpu_uvd_cs_pass2);
1058         if (r)
1059                 return r;
1060
1061         if (!ctx.has_msg_cmd) {
1062                 DRM_ERROR("UVD-IBs need a msg command!\n");
1063                 return -EINVAL;
1064         }
1065
1066         return 0;
1067 }
1068
1069 static int amdgpu_uvd_send_msg(struct amdgpu_ring *ring, struct amdgpu_bo *bo,
1070                                bool direct, struct dma_fence **fence)
1071 {
1072         struct amdgpu_device *adev = ring->adev;
1073         struct dma_fence *f = NULL;
1074         struct amdgpu_job *job;
1075         struct amdgpu_ib *ib;
1076         uint32_t data[4];
1077         uint64_t addr;
1078         long r;
1079         int i;
1080         unsigned offset_idx = 0;
1081         unsigned offset[3] = { UVD_BASE_SI, 0, 0 };
1082
1083         amdgpu_bo_kunmap(bo);
1084         amdgpu_bo_unpin(bo);
1085
1086         if (!ring->adev->uvd.address_64_bit) {
1087                 struct ttm_operation_ctx ctx = { true, false };
1088
1089                 amdgpu_bo_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_VRAM);
1090                 amdgpu_uvd_force_into_uvd_segment(bo);
1091                 r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
1092                 if (r)
1093                         goto err;
1094         }
1095
1096         r = amdgpu_job_alloc_with_ib(adev, 64, direct ? AMDGPU_IB_POOL_DIRECT :
1097                                      AMDGPU_IB_POOL_DELAYED, &job);
1098         if (r)
1099                 goto err;
1100
1101         if (adev->asic_type >= CHIP_VEGA10) {
1102                 offset_idx = 1 + ring->me;
1103                 offset[1] = adev->reg_offset[UVD_HWIP][0][1];
1104                 offset[2] = adev->reg_offset[UVD_HWIP][1][1];
1105         }
1106
1107         data[0] = PACKET0(offset[offset_idx] + UVD_GPCOM_VCPU_DATA0, 0);
1108         data[1] = PACKET0(offset[offset_idx] + UVD_GPCOM_VCPU_DATA1, 0);
1109         data[2] = PACKET0(offset[offset_idx] + UVD_GPCOM_VCPU_CMD, 0);
1110         data[3] = PACKET0(offset[offset_idx] + UVD_NO_OP, 0);
1111
1112         ib = &job->ibs[0];
1113         addr = amdgpu_bo_gpu_offset(bo);
1114         ib->ptr[0] = data[0];
1115         ib->ptr[1] = addr;
1116         ib->ptr[2] = data[1];
1117         ib->ptr[3] = addr >> 32;
1118         ib->ptr[4] = data[2];
1119         ib->ptr[5] = 0;
1120         for (i = 6; i < 16; i += 2) {
1121                 ib->ptr[i] = data[3];
1122                 ib->ptr[i+1] = 0;
1123         }
1124         ib->length_dw = 16;
1125
1126         if (direct) {
1127                 r = dma_resv_wait_timeout(bo->tbo.base.resv, true, false,
1128                                           msecs_to_jiffies(10));
1129                 if (r == 0)
1130                         r = -ETIMEDOUT;
1131                 if (r < 0)
1132                         goto err_free;
1133
1134                 r = amdgpu_job_submit_direct(job, ring, &f);
1135                 if (r)
1136                         goto err_free;
1137         } else {
1138                 r = amdgpu_sync_resv(adev, &job->sync, bo->tbo.base.resv,
1139                                      AMDGPU_SYNC_ALWAYS,
1140                                      AMDGPU_FENCE_OWNER_UNDEFINED);
1141                 if (r)
1142                         goto err_free;
1143
1144                 r = amdgpu_job_submit(job, &adev->uvd.entity,
1145                                       AMDGPU_FENCE_OWNER_UNDEFINED, &f);
1146                 if (r)
1147                         goto err_free;
1148         }
1149
1150         amdgpu_bo_fence(bo, f, false);
1151         amdgpu_bo_unreserve(bo);
1152         amdgpu_bo_unref(&bo);
1153
1154         if (fence)
1155                 *fence = dma_fence_get(f);
1156         dma_fence_put(f);
1157
1158         return 0;
1159
1160 err_free:
1161         amdgpu_job_free(job);
1162
1163 err:
1164         amdgpu_bo_unreserve(bo);
1165         amdgpu_bo_unref(&bo);
1166         return r;
1167 }
1168
1169 /* multiple fence commands without any stream commands in between can
1170    crash the vcpu so just try to emmit a dummy create/destroy msg to
1171    avoid this */
1172 int amdgpu_uvd_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
1173                               struct dma_fence **fence)
1174 {
1175         struct amdgpu_device *adev = ring->adev;
1176         struct amdgpu_bo *bo = NULL;
1177         uint32_t *msg;
1178         int r, i;
1179
1180         r = amdgpu_bo_create_reserved(adev, 1024, PAGE_SIZE,
1181                                       AMDGPU_GEM_DOMAIN_GTT,
1182                                       &bo, NULL, (void **)&msg);
1183         if (r)
1184                 return r;
1185
1186         /* stitch together an UVD create msg */
1187         msg[0] = cpu_to_le32(0x00000de4);
1188         msg[1] = cpu_to_le32(0x00000000);
1189         msg[2] = cpu_to_le32(handle);
1190         msg[3] = cpu_to_le32(0x00000000);
1191         msg[4] = cpu_to_le32(0x00000000);
1192         msg[5] = cpu_to_le32(0x00000000);
1193         msg[6] = cpu_to_le32(0x00000000);
1194         msg[7] = cpu_to_le32(0x00000780);
1195         msg[8] = cpu_to_le32(0x00000440);
1196         msg[9] = cpu_to_le32(0x00000000);
1197         msg[10] = cpu_to_le32(0x01b37000);
1198         for (i = 11; i < 1024; ++i)
1199                 msg[i] = cpu_to_le32(0x0);
1200
1201         return amdgpu_uvd_send_msg(ring, bo, true, fence);
1202 }
1203
1204 int amdgpu_uvd_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
1205                                bool direct, struct dma_fence **fence)
1206 {
1207         struct amdgpu_device *adev = ring->adev;
1208         struct amdgpu_bo *bo = NULL;
1209         uint32_t *msg;
1210         int r, i;
1211
1212         r = amdgpu_bo_create_reserved(adev, 1024, PAGE_SIZE,
1213                                       AMDGPU_GEM_DOMAIN_GTT,
1214                                       &bo, NULL, (void **)&msg);
1215         if (r)
1216                 return r;
1217
1218         /* stitch together an UVD destroy msg */
1219         msg[0] = cpu_to_le32(0x00000de4);
1220         msg[1] = cpu_to_le32(0x00000002);
1221         msg[2] = cpu_to_le32(handle);
1222         msg[3] = cpu_to_le32(0x00000000);
1223         for (i = 4; i < 1024; ++i)
1224                 msg[i] = cpu_to_le32(0x0);
1225
1226         return amdgpu_uvd_send_msg(ring, bo, direct, fence);
1227 }
1228
1229 static void amdgpu_uvd_idle_work_handler(struct work_struct *work)
1230 {
1231         struct amdgpu_device *adev =
1232                 container_of(work, struct amdgpu_device, uvd.idle_work.work);
1233         unsigned fences = 0, i, j;
1234
1235         for (i = 0; i < adev->uvd.num_uvd_inst; ++i) {
1236                 if (adev->uvd.harvest_config & (1 << i))
1237                         continue;
1238                 fences += amdgpu_fence_count_emitted(&adev->uvd.inst[i].ring);
1239                 for (j = 0; j < adev->uvd.num_enc_rings; ++j) {
1240                         fences += amdgpu_fence_count_emitted(&adev->uvd.inst[i].ring_enc[j]);
1241                 }
1242         }
1243
1244         if (fences == 0) {
1245                 if (adev->pm.dpm_enabled) {
1246                         amdgpu_dpm_enable_uvd(adev, false);
1247                 } else {
1248                         amdgpu_asic_set_uvd_clocks(adev, 0, 0);
1249                         /* shutdown the UVD block */
1250                         amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
1251                                                                AMD_PG_STATE_GATE);
1252                         amdgpu_device_ip_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
1253                                                                AMD_CG_STATE_GATE);
1254                 }
1255         } else {
1256                 schedule_delayed_work(&adev->uvd.idle_work, UVD_IDLE_TIMEOUT);
1257         }
1258 }
1259
1260 void amdgpu_uvd_ring_begin_use(struct amdgpu_ring *ring)
1261 {
1262         struct amdgpu_device *adev = ring->adev;
1263         bool set_clocks;
1264
1265         if (amdgpu_sriov_vf(adev))
1266                 return;
1267
1268         set_clocks = !cancel_delayed_work_sync(&adev->uvd.idle_work);
1269         if (set_clocks) {
1270                 if (adev->pm.dpm_enabled) {
1271                         amdgpu_dpm_enable_uvd(adev, true);
1272                 } else {
1273                         amdgpu_asic_set_uvd_clocks(adev, 53300, 40000);
1274                         amdgpu_device_ip_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
1275                                                                AMD_CG_STATE_UNGATE);
1276                         amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
1277                                                                AMD_PG_STATE_UNGATE);
1278                 }
1279         }
1280 }
1281
1282 void amdgpu_uvd_ring_end_use(struct amdgpu_ring *ring)
1283 {
1284         if (!amdgpu_sriov_vf(ring->adev))
1285                 schedule_delayed_work(&ring->adev->uvd.idle_work, UVD_IDLE_TIMEOUT);
1286 }
1287
1288 /**
1289  * amdgpu_uvd_ring_test_ib - test ib execution
1290  *
1291  * @ring: amdgpu_ring pointer
1292  * @timeout: timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT
1293  *
1294  * Test if we can successfully execute an IB
1295  */
1296 int amdgpu_uvd_ring_test_ib(struct amdgpu_ring *ring, long timeout)
1297 {
1298         struct dma_fence *fence;
1299         long r;
1300
1301         r = amdgpu_uvd_get_create_msg(ring, 1, NULL);
1302         if (r)
1303                 goto error;
1304
1305         r = amdgpu_uvd_get_destroy_msg(ring, 1, true, &fence);
1306         if (r)
1307                 goto error;
1308
1309         r = dma_fence_wait_timeout(fence, false, timeout);
1310         if (r == 0)
1311                 r = -ETIMEDOUT;
1312         else if (r > 0)
1313                 r = 0;
1314
1315         dma_fence_put(fence);
1316
1317 error:
1318         return r;
1319 }
1320
1321 /**
1322  * amdgpu_uvd_used_handles - returns used UVD handles
1323  *
1324  * @adev: amdgpu_device pointer
1325  *
1326  * Returns the number of UVD handles in use
1327  */
1328 uint32_t amdgpu_uvd_used_handles(struct amdgpu_device *adev)
1329 {
1330         unsigned i;
1331         uint32_t used_handles = 0;
1332
1333         for (i = 0; i < adev->uvd.max_handles; ++i) {
1334                 /*
1335                  * Handles can be freed in any order, and not
1336                  * necessarily linear. So we need to count
1337                  * all non-zero handles.
1338                  */
1339                 if (atomic_read(&adev->uvd.handles[i]))
1340                         used_handles++;
1341         }
1342
1343         return used_handles;
1344 }