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 <deathsimple@vodafone.de>
  29  */
  30
  31 #include <linux/firmware.h>
  32 #include <linux/module.h>
  33
  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        "/*(DEBLOBBED)*/"
  57 #define FIRMWARE_KABINI "/*(DEBLOBBED)*/"
  58 #define FIRMWARE_KAVERI "/*(DEBLOBBED)*/"
  59 #define FIRMWARE_HAWAII "/*(DEBLOBBED)*/"
  60 #define FIRMWARE_MULLINS        "/*(DEBLOBBED)*/"
  61 #endif
  62 #define FIRMWARE_TONGA          "/*(DEBLOBBED)*/"
  63 #define FIRMWARE_CARRIZO        "/*(DEBLOBBED)*/"
  64 #define FIRMWARE_FIJI           "/*(DEBLOBBED)*/"
  65 #define FIRMWARE_STONEY         "/*(DEBLOBBED)*/"
  66 #define FIRMWARE_POLARIS10      "/*(DEBLOBBED)*/"
  67 #define FIRMWARE_POLARIS11      "/*(DEBLOBBED)*/"
  68 #define FIRMWARE_POLARIS12      "/*(DEBLOBBED)*/"
  69 #define FIRMWARE_VEGAM          "/*(DEBLOBBED)*/"
  70
  71 #define FIRMWARE_VEGA10         "/*(DEBLOBBED)*/"
  72 #define FIRMWARE_VEGA12         "/*(DEBLOBBED)*/"
  73 #define FIRMWARE_VEGA20         "/*(DEBLOBBED)*/"
  74
  75 /* These are common relative offsets for all asics, from uvd_7_0_offset.h,  */
  76 #define UVD_GPCOM_VCPU_CMD              0x03c3
  77 #define UVD_GPCOM_VCPU_DATA0    0x03c4
  78 #define UVD_GPCOM_VCPU_DATA1    0x03c5
  79 #define UVD_NO_OP                               0x03ff
  80 #define UVD_BASE_SI                             0x3800
  81
  82 /**
  83  * amdgpu_uvd_cs_ctx - Command submission parser context
  84  *
  85  * Used for emulating virtual memory support on UVD 4.2.
  86  */
  87 struct amdgpu_uvd_cs_ctx {
  88         struct amdgpu_cs_parser *parser;
  89         unsigned reg, count;
  90         unsigned data0, data1;
  91         unsigned idx;
  92         unsigned ib_idx;
  93
  94         /* does the IB has a msg command */
  95         bool has_msg_cmd;
  96
  97         /* minimum buffer sizes */
  98         unsigned *buf_sizes;
  99 };
 100
 101 #ifdef CONFIG_DRM_AMDGPU_CIK
 102 /*(DEBLOBBED)*/
 103 #endif
 104 /*(DEBLOBBED)*/
 105
 106 static void amdgpu_uvd_idle_work_handler(struct work_struct *work);
 107
 108 int amdgpu_uvd_sw_init(struct amdgpu_device *adev)
 109 {
 110         unsigned long bo_size;
 111         const char *fw_name;
 112         const struct common_firmware_header *hdr;
 113         unsigned family_id;
 114         int i, j, r;
 115
 116         INIT_DELAYED_WORK(&adev->uvd.idle_work, amdgpu_uvd_idle_work_handler);
 117
 118         switch (adev->asic_type) {
 119 #ifdef CONFIG_DRM_AMDGPU_CIK
 120         case CHIP_BONAIRE:
 121                 fw_name = FIRMWARE_BONAIRE;
 122                 break;
 123         case CHIP_KABINI:
 124                 fw_name = FIRMWARE_KABINI;
 125                 break;
 126         case CHIP_KAVERI:
 127                 fw_name = FIRMWARE_KAVERI;
 128                 break;
 129         case CHIP_HAWAII:
 130                 fw_name = FIRMWARE_HAWAII;
 131                 break;
 132         case CHIP_MULLINS:
 133                 fw_name = FIRMWARE_MULLINS;
 134                 break;
 135 #endif
 136         case CHIP_TONGA:
 137                 fw_name = FIRMWARE_TONGA;
 138                 break;
 139         case CHIP_FIJI:
 140                 fw_name = FIRMWARE_FIJI;
 141                 break;
 142         case CHIP_CARRIZO:
 143                 fw_name = FIRMWARE_CARRIZO;
 144                 break;
 145         case CHIP_STONEY:
 146                 fw_name = FIRMWARE_STONEY;
 147                 break;
 148         case CHIP_POLARIS10:
 149                 fw_name = FIRMWARE_POLARIS10;
 150                 break;
 151         case CHIP_POLARIS11:
 152                 fw_name = FIRMWARE_POLARIS11;
 153                 break;
 154         case CHIP_POLARIS12:
 155                 fw_name = FIRMWARE_POLARIS12;
 156                 break;
 157         case CHIP_VEGA10:
 158                 fw_name = FIRMWARE_VEGA10;
 159                 break;
 160         case CHIP_VEGA12:
 161                 fw_name = FIRMWARE_VEGA12;
 162                 break;
 163         case CHIP_VEGAM:
 164                 fw_name = FIRMWARE_VEGAM;
 165                 break;
 166         case CHIP_VEGA20:
 167                 fw_name = FIRMWARE_VEGA20;
 168                 break;
 169         default:
 170                 return -EINVAL;
 171         }
 172
 173         r = reject_firmware(&adev->uvd.fw, fw_name, adev->dev);
 174         if (r) {
 175                 dev_err(adev->dev, "amdgpu_uvd: Can't load firmware \"%s\"\n",
 176                         fw_name);
 177                 return r;
 178         }
 179
 180         r = amdgpu_ucode_validate(adev->uvd.fw);
 181         if (r) {
 182                 dev_err(adev->dev, "amdgpu_uvd: Can't validate firmware \"%s\"\n",
 183                         fw_name);
 184                 release_firmware(adev->uvd.fw);
 185                 adev->uvd.fw = NULL;
 186                 return r;
 187         }
 188
 189         /* Set the default UVD handles that the firmware can handle */
 190         adev->uvd.max_handles = AMDGPU_DEFAULT_UVD_HANDLES;
 191
 192         hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
 193         family_id = le32_to_cpu(hdr->ucode_version) & 0xff;
 194
 195         if (adev->asic_type < CHIP_VEGA20) {
 196                 unsigned version_major, version_minor;
 197
 198                 version_major = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xff;
 199                 version_minor = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff;
 200                 DRM_INFO("Found UVD firmware Version: %hu.%hu Family ID: %hu\n",
 201                         version_major, version_minor, family_id);
 202
 203                 /*
 204                  * Limit the number of UVD handles depending on microcode major
 205                  * and minor versions. The firmware version which has 40 UVD
 206                  * instances support is 1.80. So all subsequent versions should
 207                  * also have the same support.
 208                  */
 209                 if ((version_major > 0x01) ||
 210                     ((version_major == 0x01) && (version_minor >= 0x50)))
 211                         adev->uvd.max_handles = AMDGPU_MAX_UVD_HANDLES;
 212
 213                 adev->uvd.fw_version = ((version_major << 24) | (version_minor << 16) |
 214                                         (family_id << 8));
 215
 216                 if ((adev->asic_type == CHIP_POLARIS10 ||
 217                      adev->asic_type == CHIP_POLARIS11) &&
 218                     (adev->uvd.fw_version < FW_1_66_16))
 219                         DRM_ERROR("POLARIS10/11 UVD firmware version %hu.%hu is too old.\n",
 220                                   version_major, version_minor);
 221         } else {
 222                 unsigned int enc_major, enc_minor, dec_minor;
 223
 224                 dec_minor = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff;
 225                 enc_minor = (le32_to_cpu(hdr->ucode_version) >> 24) & 0x3f;
 226                 enc_major = (le32_to_cpu(hdr->ucode_version) >> 30) & 0x3;
 227                 DRM_INFO("Found UVD firmware ENC: %hu.%hu DEC: .%hu Family ID: %hu\n",
 228                         enc_major, enc_minor, dec_minor, family_id);
 229
 230                 adev->uvd.max_handles = AMDGPU_MAX_UVD_HANDLES;
 231
 232                 adev->uvd.fw_version = le32_to_cpu(hdr->ucode_version);
 233         }
 234
 235         bo_size = AMDGPU_UVD_STACK_SIZE + AMDGPU_UVD_HEAP_SIZE
 236                   +  AMDGPU_UVD_SESSION_SIZE * adev->uvd.max_handles;
 237         if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP)
 238                 bo_size += AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(hdr->ucode_size_bytes) + 8);
 239
 240         for (j = 0; j < adev->uvd.num_uvd_inst; j++) {
 241                 if (adev->uvd.harvest_config & (1 << j))
 242                         continue;
 243                 r = amdgpu_bo_create_kernel(adev, bo_size, PAGE_SIZE,
 244                                             AMDGPU_GEM_DOMAIN_VRAM, &adev->uvd.inst[j].vcpu_bo,
 245                                             &adev->uvd.inst[j].gpu_addr, &adev->uvd.inst[j].cpu_addr);
 246                 if (r) {
 247                         dev_err(adev->dev, "(%d) failed to allocate UVD bo\n", r);
 248                         return r;
 249                 }
 250         }
 251
 252         for (i = 0; i < adev->uvd.max_handles; ++i) {
 253                 atomic_set(&adev->uvd.handles[i], 0);
 254                 adev->uvd.filp[i] = NULL;
 255         }
 256
 257         /* from uvd v5.0 HW addressing capacity increased to 64 bits */
 258         if (!amdgpu_device_ip_block_version_cmp(adev, AMD_IP_BLOCK_TYPE_UVD, 5, 0))
 259                 adev->uvd.address_64_bit = true;
 260
 261         switch (adev->asic_type) {
 262         case CHIP_TONGA:
 263                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_65_10;
 264                 break;
 265         case CHIP_CARRIZO:
 266                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_87_11;
 267                 break;
 268         case CHIP_FIJI:
 269                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_87_12;
 270                 break;
 271         case CHIP_STONEY:
 272                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_37_15;
 273                 break;
 274         default:
 275                 adev->uvd.use_ctx_buf = adev->asic_type >= CHIP_POLARIS10;
 276         }
 277
 278         return 0;
 279 }
 280
 281 int amdgpu_uvd_sw_fini(struct amdgpu_device *adev)
 282 {
 283         int i, j;
 284
 285         drm_sched_entity_destroy(&adev->uvd.entity);
 286
 287         for (j = 0; j < adev->uvd.num_uvd_inst; ++j) {
 288                 if (adev->uvd.harvest_config & (1 << j))
 289                         continue;
 290                 kvfree(adev->uvd.inst[j].saved_bo);
 291
 292                 amdgpu_bo_free_kernel(&adev->uvd.inst[j].vcpu_bo,
 293                                       &adev->uvd.inst[j].gpu_addr,
 294                                       (void **)&adev->uvd.inst[j].cpu_addr);
 295
 296                 amdgpu_ring_fini(&adev->uvd.inst[j].ring);
 297
 298                 for (i = 0; i < AMDGPU_MAX_UVD_ENC_RINGS; ++i)
 299                         amdgpu_ring_fini(&adev->uvd.inst[j].ring_enc[i]);
 300         }
 301         release_firmware(adev->uvd.fw);
 302
 303         return 0;
 304 }
 305
 306 /**
 307  * amdgpu_uvd_entity_init - init entity
 308  *
 309  * @adev: amdgpu_device pointer
 310  *
 311  */
 312 int amdgpu_uvd_entity_init(struct amdgpu_device *adev)
 313 {
 314         struct amdgpu_ring *ring;
 315         struct drm_sched_rq *rq;
 316         int r;
 317
 318         ring = &adev->uvd.inst[0].ring;
 319         rq = &ring->sched.sched_rq[DRM_SCHED_PRIORITY_NORMAL];
 320         r = drm_sched_entity_init(&adev->uvd.entity, &rq, 1, NULL);
 321         if (r) {
 322                 DRM_ERROR("Failed setting up UVD kernel entity.\n");
 323                 return r;
 324         }
 325
 326         return 0;
 327 }
 328
 329 int amdgpu_uvd_suspend(struct amdgpu_device *adev)
 330 {
 331         unsigned size;
 332         void *ptr;
 333         int i, j;
 334
 335         cancel_delayed_work_sync(&adev->uvd.idle_work);
 336
 337         /* only valid for physical mode */
 338         if (adev->asic_type < CHIP_POLARIS10) {
 339                 for (i = 0; i < adev->uvd.max_handles; ++i)
 340                         if (atomic_read(&adev->uvd.handles[i]))
 341                                 break;
 342
 343                 if (i == adev->uvd.max_handles)
 344                         return 0;
 345         }
 346
 347         for (j = 0; j < adev->uvd.num_uvd_inst; ++j) {
 348                 if (adev->uvd.harvest_config & (1 << j))
 349                         continue;
 350                 if (adev->uvd.inst[j].vcpu_bo == NULL)
 351                         continue;
 352
 353                 size = amdgpu_bo_size(adev->uvd.inst[j].vcpu_bo);
 354                 ptr = adev->uvd.inst[j].cpu_addr;
 355
 356                 adev->uvd.inst[j].saved_bo = kvmalloc(size, GFP_KERNEL);
 357                 if (!adev->uvd.inst[j].saved_bo)
 358                         return -ENOMEM;
 359
 360                 memcpy_fromio(adev->uvd.inst[j].saved_bo, ptr, size);
 361         }
 362         return 0;
 363 }
 364
 365 int amdgpu_uvd_resume(struct amdgpu_device *adev)
 366 {
 367         unsigned size;
 368         void *ptr;
 369         int i;
 370
 371         for (i = 0; i < adev->uvd.num_uvd_inst; i++) {
 372                 if (adev->uvd.harvest_config & (1 << i))
 373                         continue;
 374                 if (adev->uvd.inst[i].vcpu_bo == NULL)
 375                         return -EINVAL;
 376
 377                 size = amdgpu_bo_size(adev->uvd.inst[i].vcpu_bo);
 378                 ptr = adev->uvd.inst[i].cpu_addr;
 379
 380                 if (adev->uvd.inst[i].saved_bo != NULL) {
 381                         memcpy_toio(ptr, adev->uvd.inst[i].saved_bo, size);
 382                         kvfree(adev->uvd.inst[i].saved_bo);
 383                         adev->uvd.inst[i].saved_bo = NULL;
 384                 } else {
 385                         const struct common_firmware_header *hdr;
 386                         unsigned offset;
 387
 388                         hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
 389                         if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
 390                                 offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
 391                                 memcpy_toio(adev->uvd.inst[i].cpu_addr, adev->uvd.fw->data + offset,
 392                                             le32_to_cpu(hdr->ucode_size_bytes));
 393                                 size -= le32_to_cpu(hdr->ucode_size_bytes);
 394                                 ptr += le32_to_cpu(hdr->ucode_size_bytes);
 395                         }
 396                         memset_io(ptr, 0, size);
 397                         /* to restore uvd fence seq */
 398                         amdgpu_fence_driver_force_completion(&adev->uvd.inst[i].ring);
 399                 }
 400         }
 401         return 0;
 402 }
 403
 404 void amdgpu_uvd_free_handles(struct amdgpu_device *adev, struct drm_file *filp)
 405 {
 406         struct amdgpu_ring *ring = &adev->uvd.inst[0].ring;
 407         int i, r;
 408
 409         for (i = 0; i < adev->uvd.max_handles; ++i) {
 410                 uint32_t handle = atomic_read(&adev->uvd.handles[i]);
 411
 412                 if (handle != 0 && adev->uvd.filp[i] == filp) {
 413                         struct dma_fence *fence;
 414
 415                         r = amdgpu_uvd_get_destroy_msg(ring, handle, false,
 416                                                        &fence);
 417                         if (r) {
 418                                 DRM_ERROR("Error destroying UVD %d!\n", r);
 419                                 continue;
 420                         }
 421
 422                         dma_fence_wait(fence, false);
 423                         dma_fence_put(fence);
 424
 425                         adev->uvd.filp[i] = NULL;
 426                         atomic_set(&adev->uvd.handles[i], 0);
 427                 }
 428         }
 429 }
 430
 431 static void amdgpu_uvd_force_into_uvd_segment(struct amdgpu_bo *abo)
 432 {
 433         int i;
 434         for (i = 0; i < abo->placement.num_placement; ++i) {
 435                 abo->placements[i].fpfn = 0 >> PAGE_SHIFT;
 436                 abo->placements[i].lpfn = (256 * 1024 * 1024) >> PAGE_SHIFT;
 437         }
 438 }
 439
 440 static u64 amdgpu_uvd_get_addr_from_ctx(struct amdgpu_uvd_cs_ctx *ctx)
 441 {
 442         uint32_t lo, hi;
 443         uint64_t addr;
 444
 445         lo = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->data0);
 446         hi = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->data1);
 447         addr = ((uint64_t)lo) | (((uint64_t)hi) << 32);
 448
 449         return addr;
 450 }
 451
 452 /**
 453  * amdgpu_uvd_cs_pass1 - first parsing round
 454  *
 455  * @ctx: UVD parser context
 456  *
 457  * Make sure UVD message and feedback buffers are in VRAM and
 458  * nobody is violating an 256MB boundary.
 459  */
 460 static int amdgpu_uvd_cs_pass1(struct amdgpu_uvd_cs_ctx *ctx)
 461 {
 462         struct ttm_operation_ctx tctx = { false, false };
 463         struct amdgpu_bo_va_mapping *mapping;
 464         struct amdgpu_bo *bo;
 465         uint32_t cmd;
 466         uint64_t addr = amdgpu_uvd_get_addr_from_ctx(ctx);
 467         int r = 0;
 468
 469         r = amdgpu_cs_find_mapping(ctx->parser, addr, &bo, &mapping);
 470         if (r) {
 471                 DRM_ERROR("Can't find BO for addr 0x%08Lx\n", addr);
 472                 return r;
 473         }
 474
 475         if (!ctx->parser->adev->uvd.address_64_bit) {
 476                 /* check if it's a message or feedback command */
 477                 cmd = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->idx) >> 1;
 478                 if (cmd == 0x0 || cmd == 0x3) {
 479                         /* yes, force it into VRAM */
 480                         uint32_t domain = AMDGPU_GEM_DOMAIN_VRAM;
 481                         amdgpu_bo_placement_from_domain(bo, domain);
 482                 }
 483                 amdgpu_uvd_force_into_uvd_segment(bo);
 484
 485                 r = ttm_bo_validate(&bo->tbo, &bo->placement, &tctx);
 486         }
 487
 488         return r;
 489 }
 490
 491 /**
 492  * amdgpu_uvd_cs_msg_decode - handle UVD decode message
 493  *
 494  * @msg: pointer to message structure
 495  * @buf_sizes: returned buffer sizes
 496  *
 497  * Peek into the decode message and calculate the necessary buffer sizes.
 498  */
 499 static int amdgpu_uvd_cs_msg_decode(struct amdgpu_device *adev, uint32_t *msg,
 500         unsigned buf_sizes[])
 501 {
 502         unsigned stream_type = msg[4];
 503         unsigned width = msg[6];
 504         unsigned height = msg[7];
 505         unsigned dpb_size = msg[9];
 506         unsigned pitch = msg[28];
 507         unsigned level = msg[57];
 508
 509         unsigned width_in_mb = width / 16;
 510         unsigned height_in_mb = ALIGN(height / 16, 2);
 511         unsigned fs_in_mb = width_in_mb * height_in_mb;
 512
 513         unsigned image_size, tmp, min_dpb_size, num_dpb_buffer;
 514         unsigned min_ctx_size = ~0;
 515
 516         image_size = width * height;
 517         image_size += image_size / 2;
 518         image_size = ALIGN(image_size, 1024);
 519
 520         switch (stream_type) {
 521         case 0: /* H264 */
 522                 switch(level) {
 523                 case 30:
 524                         num_dpb_buffer = 8100 / fs_in_mb;
 525                         break;
 526                 case 31:
 527                         num_dpb_buffer = 18000 / fs_in_mb;
 528                         break;
 529                 case 32:
 530                         num_dpb_buffer = 20480 / fs_in_mb;
 531                         break;
 532                 case 41:
 533                         num_dpb_buffer = 32768 / fs_in_mb;
 534                         break;
 535                 case 42:
 536                         num_dpb_buffer = 34816 / fs_in_mb;
 537                         break;
 538                 case 50:
 539                         num_dpb_buffer = 110400 / fs_in_mb;
 540                         break;
 541                 case 51:
 542                         num_dpb_buffer = 184320 / fs_in_mb;
 543                         break;
 544                 default:
 545                         num_dpb_buffer = 184320 / fs_in_mb;
 546                         break;
 547                 }
 548                 num_dpb_buffer++;
 549                 if (num_dpb_buffer > 17)
 550                         num_dpb_buffer = 17;
 551
 552                 /* reference picture buffer */
 553                 min_dpb_size = image_size * num_dpb_buffer;
 554
 555                 /* macroblock context buffer */
 556                 min_dpb_size += width_in_mb * height_in_mb * num_dpb_buffer * 192;
 557
 558                 /* IT surface buffer */
 559                 min_dpb_size += width_in_mb * height_in_mb * 32;
 560                 break;
 561
 562         case 1: /* VC1 */
 563
 564                 /* reference picture buffer */
 565                 min_dpb_size = image_size * 3;
 566
 567                 /* CONTEXT_BUFFER */
 568                 min_dpb_size += width_in_mb * height_in_mb * 128;
 569
 570                 /* IT surface buffer */
 571                 min_dpb_size += width_in_mb * 64;
 572
 573                 /* DB surface buffer */
 574                 min_dpb_size += width_in_mb * 128;
 575
 576                 /* BP */
 577                 tmp = max(width_in_mb, height_in_mb);
 578                 min_dpb_size += ALIGN(tmp * 7 * 16, 64);
 579                 break;
 580
 581         case 3: /* MPEG2 */
 582
 583                 /* reference picture buffer */
 584                 min_dpb_size = image_size * 3;
 585                 break;
 586
 587         case 4: /* MPEG4 */
 588
 589                 /* reference picture buffer */
 590                 min_dpb_size = image_size * 3;
 591
 592                 /* CM */
 593                 min_dpb_size += width_in_mb * height_in_mb * 64;
 594
 595                 /* IT surface buffer */
 596                 min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64);
 597                 break;
 598
 599         case 7: /* H264 Perf */
 600                 switch(level) {
 601                 case 30:
 602                         num_dpb_buffer = 8100 / fs_in_mb;
 603                         break;
 604                 case 31:
 605                         num_dpb_buffer = 18000 / fs_in_mb;
 606                         break;
 607                 case 32:
 608                         num_dpb_buffer = 20480 / fs_in_mb;
 609                         break;
 610                 case 41:
 611                         num_dpb_buffer = 32768 / fs_in_mb;
 612                         break;
 613                 case 42:
 614                         num_dpb_buffer = 34816 / fs_in_mb;
 615                         break;
 616                 case 50:
 617                         num_dpb_buffer = 110400 / fs_in_mb;
 618                         break;
 619                 case 51:
 620                         num_dpb_buffer = 184320 / fs_in_mb;
 621                         break;
 622                 default:
 623                         num_dpb_buffer = 184320 / fs_in_mb;
 624                         break;
 625                 }
 626                 num_dpb_buffer++;
 627                 if (num_dpb_buffer > 17)
 628                         num_dpb_buffer = 17;
 629
 630                 /* reference picture buffer */
 631                 min_dpb_size = image_size * num_dpb_buffer;
 632
 633                 if (!adev->uvd.use_ctx_buf){
 634                         /* macroblock context buffer */
 635                         min_dpb_size +=
 636                                 width_in_mb * height_in_mb * num_dpb_buffer * 192;
 637
 638                         /* IT surface buffer */
 639                         min_dpb_size += width_in_mb * height_in_mb * 32;
 640                 } else {
 641                         /* macroblock context buffer */
 642                         min_ctx_size =
 643                                 width_in_mb * height_in_mb * num_dpb_buffer * 192;
 644                 }
 645                 break;
 646
 647         case 8: /* MJPEG */
 648                 min_dpb_size = 0;
 649                 break;
 650
 651         case 16: /* H265 */
 652                 image_size = (ALIGN(width, 16) * ALIGN(height, 16) * 3) / 2;
 653                 image_size = ALIGN(image_size, 256);
 654
 655                 num_dpb_buffer = (le32_to_cpu(msg[59]) & 0xff) + 2;
 656                 min_dpb_size = image_size * num_dpb_buffer;
 657                 min_ctx_size = ((width + 255) / 16) * ((height + 255) / 16)
 658                                            * 16 * num_dpb_buffer + 52 * 1024;
 659                 break;
 660
 661         default:
 662                 DRM_ERROR("UVD codec not handled %d!\n", stream_type);
 663                 return -EINVAL;
 664         }
 665
 666         if (width > pitch) {
 667                 DRM_ERROR("Invalid UVD decoding target pitch!\n");
 668                 return -EINVAL;
 669         }
 670
 671         if (dpb_size < min_dpb_size) {
 672                 DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n",
 673                           dpb_size, min_dpb_size);
 674                 return -EINVAL;
 675         }
 676
 677         buf_sizes[0x1] = dpb_size;
 678         buf_sizes[0x2] = image_size;
 679         buf_sizes[0x4] = min_ctx_size;
 680         /* store image width to adjust nb memory pstate */
 681         adev->uvd.decode_image_width = width;
 682         return 0;
 683 }
 684
 685 /**
 686  * amdgpu_uvd_cs_msg - handle UVD message
 687  *
 688  * @ctx: UVD parser context
 689  * @bo: buffer object containing the message
 690  * @offset: offset into the buffer object
 691  *
 692  * Peek into the UVD message and extract the session id.
 693  * Make sure that we don't open up to many sessions.
 694  */
 695 static int amdgpu_uvd_cs_msg(struct amdgpu_uvd_cs_ctx *ctx,
 696                              struct amdgpu_bo *bo, unsigned offset)
 697 {
 698         struct amdgpu_device *adev = ctx->parser->adev;
 699         int32_t *msg, msg_type, handle;
 700         void *ptr;
 701         long r;
 702         int i;
 703
 704         if (offset & 0x3F) {
 705                 DRM_ERROR("UVD messages must be 64 byte aligned!\n");
 706                 return -EINVAL;
 707         }
 708
 709         r = amdgpu_bo_kmap(bo, &ptr);
 710         if (r) {
 711                 DRM_ERROR("Failed mapping the UVD) message (%ld)!\n", r);
 712                 return r;
 713         }
 714
 715         msg = ptr + offset;
 716
 717         msg_type = msg[1];
 718         handle = msg[2];
 719
 720         if (handle == 0) {
 721                 DRM_ERROR("Invalid UVD handle!\n");
 722                 return -EINVAL;
 723         }
 724
 725         switch (msg_type) {
 726         case 0:
 727                 /* it's a create msg, calc image size (width * height) */
 728                 amdgpu_bo_kunmap(bo);
 729
 730                 /* try to alloc a new handle */
 731                 for (i = 0; i < adev->uvd.max_handles; ++i) {
 732                         if (atomic_read(&adev->uvd.handles[i]) == handle) {
 733                                 DRM_ERROR(")Handle 0x%x already in use!\n",
 734                                           handle);
 735                                 return -EINVAL;
 736                         }
 737
 738                         if (!atomic_cmpxchg(&adev->uvd.handles[i], 0, handle)) {
 739                                 adev->uvd.filp[i] = ctx->parser->filp;
 740                                 return 0;
 741                         }
 742                 }
 743
 744                 DRM_ERROR("No more free UVD handles!\n");
 745                 return -ENOSPC;
 746
 747         case 1:
 748                 /* it's a decode msg, calc buffer sizes */
 749                 r = amdgpu_uvd_cs_msg_decode(adev, msg, ctx->buf_sizes);
 750                 amdgpu_bo_kunmap(bo);
 751                 if (r)
 752                         return r;
 753
 754                 /* validate the handle */
 755                 for (i = 0; i < adev->uvd.max_handles; ++i) {
 756                         if (atomic_read(&adev->uvd.handles[i]) == handle) {
 757                                 if (adev->uvd.filp[i] != ctx->parser->filp) {
 758                                         DRM_ERROR("UVD handle collision detected!\n");
 759                                         return -EINVAL;
 760                                 }
 761                                 return 0;
 762                         }
 763                 }
 764
 765                 DRM_ERROR("Invalid UVD handle 0x%x!\n", handle);
 766                 return -ENOENT;
 767
 768         case 2:
 769                 /* it's a destroy msg, free the handle */
 770                 for (i = 0; i < adev->uvd.max_handles; ++i)
 771                         atomic_cmpxchg(&adev->uvd.handles[i], handle, 0);
 772                 amdgpu_bo_kunmap(bo);
 773                 return 0;
 774
 775         default:
 776                 DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
 777                 return -EINVAL;
 778         }
 779         BUG();
 780         return -EINVAL;
 781 }
 782
 783 /**
 784  * amdgpu_uvd_cs_pass2 - second parsing round
 785  *
 786  * @ctx: UVD parser context
 787  *
 788  * Patch buffer addresses, make sure buffer sizes are correct.
 789  */
 790 static int amdgpu_uvd_cs_pass2(struct amdgpu_uvd_cs_ctx *ctx)
 791 {
 792         struct amdgpu_bo_va_mapping *mapping;
 793         struct amdgpu_bo *bo;
 794         uint32_t cmd;
 795         uint64_t start, end;
 796         uint64_t addr = amdgpu_uvd_get_addr_from_ctx(ctx);
 797         int r;
 798
 799         r = amdgpu_cs_find_mapping(ctx->parser, addr, &bo, &mapping);
 800         if (r) {
 801                 DRM_ERROR("Can't find BO for addr 0x%08Lx\n", addr);
 802                 return r;
 803         }
 804
 805         start = amdgpu_bo_gpu_offset(bo);
 806
 807         end = (mapping->last + 1 - mapping->start);
 808         end = end * AMDGPU_GPU_PAGE_SIZE + start;
 809
 810         addr -= mapping->start * AMDGPU_GPU_PAGE_SIZE;
 811         start += addr;
 812
 813         amdgpu_set_ib_value(ctx->parser, ctx->ib_idx, ctx->data0,
 814                             lower_32_bits(start));
 815         amdgpu_set_ib_value(ctx->parser, ctx->ib_idx, ctx->data1,
 816                             upper_32_bits(start));
 817
 818         cmd = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->idx) >> 1;
 819         if (cmd < 0x4) {
 820                 if ((end - start) < ctx->buf_sizes[cmd]) {
 821                         DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
 822                                   (unsigned)(end - start),
 823                                   ctx->buf_sizes[cmd]);
 824                         return -EINVAL;
 825                 }
 826
 827         } else if (cmd == 0x206) {
 828                 if ((end - start) < ctx->buf_sizes[4]) {
 829                         DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
 830                                           (unsigned)(end - start),
 831                                           ctx->buf_sizes[4]);
 832                         return -EINVAL;
 833                 }
 834         } else if ((cmd != 0x100) && (cmd != 0x204)) {
 835                 DRM_ERROR("invalid UVD command %X!\n", cmd);
 836                 return -EINVAL;
 837         }
 838
 839         if (!ctx->parser->adev->uvd.address_64_bit) {
 840                 if ((start >> 28) != ((end - 1) >> 28)) {
 841                         DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
 842                                   start, end);
 843                         return -EINVAL;
 844                 }
 845
 846                 if ((cmd == 0 || cmd == 0x3) &&
 847                     (start >> 28) != (ctx->parser->adev->uvd.inst->gpu_addr >> 28)) {
 848                         DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n",
 849                                   start, end);
 850                         return -EINVAL;
 851                 }
 852         }
 853
 854         if (cmd == 0) {
 855                 ctx->has_msg_cmd = true;
 856                 r = amdgpu_uvd_cs_msg(ctx, bo, addr);
 857                 if (r)
 858                         return r;
 859         } else if (!ctx->has_msg_cmd) {
 860                 DRM_ERROR("Message needed before other commands are send!\n");
 861                 return -EINVAL;
 862         }
 863
 864         return 0;
 865 }
 866
 867 /**
 868  * amdgpu_uvd_cs_reg - parse register writes
 869  *
 870  * @ctx: UVD parser context
 871  * @cb: callback function
 872  *
 873  * Parse the register writes, call cb on each complete command.
 874  */
 875 static int amdgpu_uvd_cs_reg(struct amdgpu_uvd_cs_ctx *ctx,
 876                              int (*cb)(struct amdgpu_uvd_cs_ctx *ctx))
 877 {
 878         struct amdgpu_ib *ib = &ctx->parser->job->ibs[ctx->ib_idx];
 879         int i, r;
 880
 881         ctx->idx++;
 882         for (i = 0; i <= ctx->count; ++i) {
 883                 unsigned reg = ctx->reg + i;
 884
 885                 if (ctx->idx >= ib->length_dw) {
 886                         DRM_ERROR("Register command after end of CS!\n");
 887                         return -EINVAL;
 888                 }
 889
 890                 switch (reg) {
 891                 case mmUVD_GPCOM_VCPU_DATA0:
 892                         ctx->data0 = ctx->idx;
 893                         break;
 894                 case mmUVD_GPCOM_VCPU_DATA1:
 895                         ctx->data1 = ctx->idx;
 896                         break;
 897                 case mmUVD_GPCOM_VCPU_CMD:
 898                         r = cb(ctx);
 899                         if (r)
 900                                 return r;
 901                         break;
 902                 case mmUVD_ENGINE_CNTL:
 903                 case mmUVD_NO_OP:
 904                         break;
 905                 default:
 906                         DRM_ERROR("Invalid reg 0x%X!\n", reg);
 907                         return -EINVAL;
 908                 }
 909                 ctx->idx++;
 910         }
 911         return 0;
 912 }
 913
 914 /**
 915  * amdgpu_uvd_cs_packets - parse UVD packets
 916  *
 917  * @ctx: UVD parser context
 918  * @cb: callback function
 919  *
 920  * Parse the command stream packets.
 921  */
 922 static int amdgpu_uvd_cs_packets(struct amdgpu_uvd_cs_ctx *ctx,
 923                                  int (*cb)(struct amdgpu_uvd_cs_ctx *ctx))
 924 {
 925         struct amdgpu_ib *ib = &ctx->parser->job->ibs[ctx->ib_idx];
 926         int r;
 927
 928         for (ctx->idx = 0 ; ctx->idx < ib->length_dw; ) {
 929                 uint32_t cmd = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->idx);
 930                 unsigned type = CP_PACKET_GET_TYPE(cmd);
 931                 switch (type) {
 932                 case PACKET_TYPE0:
 933                         ctx->reg = CP_PACKET0_GET_REG(cmd);
 934                         ctx->count = CP_PACKET_GET_COUNT(cmd);
 935                         r = amdgpu_uvd_cs_reg(ctx, cb);
 936                         if (r)
 937                                 return r;
 938                         break;
 939                 case PACKET_TYPE2:
 940                         ++ctx->idx;
 941                         break;
 942                 default:
 943                         DRM_ERROR("Unknown packet type %d !\n", type);
 944                         return -EINVAL;
 945                 }
 946         }
 947         return 0;
 948 }
 949
 950 /**
 951  * amdgpu_uvd_ring_parse_cs - UVD command submission parser
 952  *
 953  * @parser: Command submission parser context
 954  *
 955  * Parse the command stream, patch in addresses as necessary.
 956  */
 957 int amdgpu_uvd_ring_parse_cs(struct amdgpu_cs_parser *parser, uint32_t ib_idx)
 958 {
 959         struct amdgpu_uvd_cs_ctx ctx = {};
 960         unsigned buf_sizes[] = {
 961                 [0x00000000]    =       2048,
 962                 [0x00000001]    =       0xFFFFFFFF,
 963                 [0x00000002]    =       0xFFFFFFFF,
 964                 [0x00000003]    =       2048,
 965                 [0x00000004]    =       0xFFFFFFFF,
 966         };
 967         struct amdgpu_ib *ib = &parser->job->ibs[ib_idx];
 968         int r;
 969
 970         parser->job->vm = NULL;
 971         ib->gpu_addr = amdgpu_sa_bo_gpu_addr(ib->sa_bo);
 972
 973         if (ib->length_dw % 16) {
 974                 DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n",
 975                           ib->length_dw);
 976                 return -EINVAL;
 977         }
 978
 979         ctx.parser = parser;
 980         ctx.buf_sizes = buf_sizes;
 981         ctx.ib_idx = ib_idx;
 982
 983         /* first round only required on chips without UVD 64 bit address support */
 984         if (!parser->adev->uvd.address_64_bit) {
 985                 /* first round, make sure the buffers are actually in the UVD segment */
 986                 r = amdgpu_uvd_cs_packets(&ctx, amdgpu_uvd_cs_pass1);
 987                 if (r)
 988                         return r;
 989         }
 990
 991         /* second round, patch buffer addresses into the command stream */
 992         r = amdgpu_uvd_cs_packets(&ctx, amdgpu_uvd_cs_pass2);
 993         if (r)
 994                 return r;
 995
 996         if (!ctx.has_msg_cmd) {
 997                 DRM_ERROR("UVD-IBs need a msg command!\n");
 998                 return -EINVAL;
 999         }
1000
1001         return 0;
1002 }
1003
1004 static int amdgpu_uvd_send_msg(struct amdgpu_ring *ring, struct amdgpu_bo *bo,
1005                                bool direct, struct dma_fence **fence)
1006 {
1007         struct amdgpu_device *adev = ring->adev;
1008         struct dma_fence *f = NULL;
1009         struct amdgpu_job *job;
1010         struct amdgpu_ib *ib;
1011         uint32_t data[4];
1012         uint64_t addr;
1013         long r;
1014         int i;
1015         unsigned offset_idx = 0;
1016         unsigned offset[3] = { UVD_BASE_SI, 0, 0 };
1017
1018         amdgpu_bo_kunmap(bo);
1019         amdgpu_bo_unpin(bo);
1020
1021         if (!ring->adev->uvd.address_64_bit) {
1022                 struct ttm_operation_ctx ctx = { true, false };
1023
1024                 amdgpu_bo_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_VRAM);
1025                 amdgpu_uvd_force_into_uvd_segment(bo);
1026                 r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
1027                 if (r)
1028                         goto err;
1029         }
1030
1031         r = amdgpu_job_alloc_with_ib(adev, 64, &job);
1032         if (r)
1033                 goto err;
1034
1035         if (adev->asic_type >= CHIP_VEGA10) {
1036                 offset_idx = 1 + ring->me;
1037                 offset[1] = adev->reg_offset[UVD_HWIP][0][1];
1038                 offset[2] = adev->reg_offset[UVD_HWIP][1][1];
1039         }
1040
1041         data[0] = PACKET0(offset[offset_idx] + UVD_GPCOM_VCPU_DATA0, 0);
1042         data[1] = PACKET0(offset[offset_idx] + UVD_GPCOM_VCPU_DATA1, 0);
1043         data[2] = PACKET0(offset[offset_idx] + UVD_GPCOM_VCPU_CMD, 0);
1044         data[3] = PACKET0(offset[offset_idx] + UVD_NO_OP, 0);
1045
1046         ib = &job->ibs[0];
1047         addr = amdgpu_bo_gpu_offset(bo);
1048         ib->ptr[0] = data[0];
1049         ib->ptr[1] = addr;
1050         ib->ptr[2] = data[1];
1051         ib->ptr[3] = addr >> 32;
1052         ib->ptr[4] = data[2];
1053         ib->ptr[5] = 0;
1054         for (i = 6; i < 16; i += 2) {
1055                 ib->ptr[i] = data[3];
1056                 ib->ptr[i+1] = 0;
1057         }
1058         ib->length_dw = 16;
1059
1060         if (direct) {
1061                 r = reservation_object_wait_timeout_rcu(bo->tbo.resv,
1062                                                         true, false,
1063                                                         msecs_to_jiffies(10));
1064                 if (r == 0)
1065                         r = -ETIMEDOUT;
1066                 if (r < 0)
1067                         goto err_free;
1068
1069                 r = amdgpu_job_submit_direct(job, ring, &f);
1070                 if (r)
1071                         goto err_free;
1072         } else {
1073                 r = amdgpu_sync_resv(adev, &job->sync, bo->tbo.resv,
1074                                      AMDGPU_FENCE_OWNER_UNDEFINED, false);
1075                 if (r)
1076                         goto err_free;
1077
1078                 r = amdgpu_job_submit(job, &adev->uvd.entity,
1079                                       AMDGPU_FENCE_OWNER_UNDEFINED, &f);
1080                 if (r)
1081                         goto err_free;
1082         }
1083
1084         amdgpu_bo_fence(bo, f, false);
1085         amdgpu_bo_unreserve(bo);
1086         amdgpu_bo_unref(&bo);
1087
1088         if (fence)
1089                 *fence = dma_fence_get(f);
1090         dma_fence_put(f);
1091
1092         return 0;
1093
1094 err_free:
1095         amdgpu_job_free(job);
1096
1097 err:
1098         amdgpu_bo_unreserve(bo);
1099         amdgpu_bo_unref(&bo);
1100         return r;
1101 }
1102
1103 /* multiple fence commands without any stream commands in between can
1104    crash the vcpu so just try to emmit a dummy create/destroy msg to
1105    avoid this */
1106 int amdgpu_uvd_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
1107                               struct dma_fence **fence)
1108 {
1109         struct amdgpu_device *adev = ring->adev;
1110         struct amdgpu_bo *bo = NULL;
1111         uint32_t *msg;
1112         int r, i;
1113
1114         r = amdgpu_bo_create_reserved(adev, 1024, PAGE_SIZE,
1115                                       AMDGPU_GEM_DOMAIN_VRAM,
1116                                       &bo, NULL, (void **)&msg);
1117         if (r)
1118                 return r;
1119
1120         /* stitch together an UVD create msg */
1121         msg[0] = cpu_to_le32(0x00000de4);
1122         msg[1] = cpu_to_le32(0x00000000);
1123         msg[2] = cpu_to_le32(handle);
1124         msg[3] = cpu_to_le32(0x00000000);
1125         msg[4] = cpu_to_le32(0x00000000);
1126         msg[5] = cpu_to_le32(0x00000000);
1127         msg[6] = cpu_to_le32(0x00000000);
1128         msg[7] = cpu_to_le32(0x00000780);
1129         msg[8] = cpu_to_le32(0x00000440);
1130         msg[9] = cpu_to_le32(0x00000000);
1131         msg[10] = cpu_to_le32(0x01b37000);
1132         for (i = 11; i < 1024; ++i)
1133                 msg[i] = cpu_to_le32(0x0);
1134
1135         return amdgpu_uvd_send_msg(ring, bo, true, fence);
1136 }
1137
1138 int amdgpu_uvd_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
1139                                bool direct, struct dma_fence **fence)
1140 {
1141         struct amdgpu_device *adev = ring->adev;
1142         struct amdgpu_bo *bo = NULL;
1143         uint32_t *msg;
1144         int r, i;
1145
1146         r = amdgpu_bo_create_reserved(adev, 1024, PAGE_SIZE,
1147                                       AMDGPU_GEM_DOMAIN_VRAM,
1148                                       &bo, NULL, (void **)&msg);
1149         if (r)
1150                 return r;
1151
1152         /* stitch together an UVD destroy msg */
1153         msg[0] = cpu_to_le32(0x00000de4);
1154         msg[1] = cpu_to_le32(0x00000002);
1155         msg[2] = cpu_to_le32(handle);
1156         msg[3] = cpu_to_le32(0x00000000);
1157         for (i = 4; i < 1024; ++i)
1158                 msg[i] = cpu_to_le32(0x0);
1159
1160         return amdgpu_uvd_send_msg(ring, bo, direct, fence);
1161 }
1162
1163 static void amdgpu_uvd_idle_work_handler(struct work_struct *work)
1164 {
1165         struct amdgpu_device *adev =
1166                 container_of(work, struct amdgpu_device, uvd.idle_work.work);
1167         unsigned fences = 0, i, j;
1168
1169         for (i = 0; i < adev->uvd.num_uvd_inst; ++i) {
1170                 if (adev->uvd.harvest_config & (1 << i))
1171                         continue;
1172                 fences += amdgpu_fence_count_emitted(&adev->uvd.inst[i].ring);
1173                 for (j = 0; j < adev->uvd.num_enc_rings; ++j) {
1174                         fences += amdgpu_fence_count_emitted(&adev->uvd.inst[i].ring_enc[j]);
1175                 }
1176         }
1177
1178         if (fences == 0) {
1179                 if (adev->pm.dpm_enabled) {
1180                         amdgpu_dpm_enable_uvd(adev, false);
1181                 } else {
1182                         amdgpu_asic_set_uvd_clocks(adev, 0, 0);
1183                         /* shutdown the UVD block */
1184                         amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
1185                                                                AMD_PG_STATE_GATE);
1186                         amdgpu_device_ip_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
1187                                                                AMD_CG_STATE_GATE);
1188                 }
1189         } else {
1190                 schedule_delayed_work(&adev->uvd.idle_work, UVD_IDLE_TIMEOUT);
1191         }
1192 }
1193
1194 void amdgpu_uvd_ring_begin_use(struct amdgpu_ring *ring)
1195 {
1196         struct amdgpu_device *adev = ring->adev;
1197         bool set_clocks;
1198
1199         if (amdgpu_sriov_vf(adev))
1200                 return;
1201
1202         set_clocks = !cancel_delayed_work_sync(&adev->uvd.idle_work);
1203         if (set_clocks) {
1204                 if (adev->pm.dpm_enabled) {
1205                         amdgpu_dpm_enable_uvd(adev, true);
1206                 } else {
1207                         amdgpu_asic_set_uvd_clocks(adev, 53300, 40000);
1208                         amdgpu_device_ip_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
1209                                                                AMD_CG_STATE_UNGATE);
1210                         amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
1211                                                                AMD_PG_STATE_UNGATE);
1212                 }
1213         }
1214 }
1215
1216 void amdgpu_uvd_ring_end_use(struct amdgpu_ring *ring)
1217 {
1218         if (!amdgpu_sriov_vf(ring->adev))
1219                 schedule_delayed_work(&ring->adev->uvd.idle_work, UVD_IDLE_TIMEOUT);
1220 }
1221
1222 /**
1223  * amdgpu_uvd_ring_test_ib - test ib execution
1224  *
1225  * @ring: amdgpu_ring pointer
1226  *
1227  * Test if we can successfully execute an IB
1228  */
1229 int amdgpu_uvd_ring_test_ib(struct amdgpu_ring *ring, long timeout)
1230 {
1231         struct dma_fence *fence;
1232         long r;
1233
1234         r = amdgpu_uvd_get_create_msg(ring, 1, NULL);
1235         if (r)
1236                 goto error;
1237
1238         r = amdgpu_uvd_get_destroy_msg(ring, 1, true, &fence);
1239         if (r)
1240                 goto error;
1241
1242         r = dma_fence_wait_timeout(fence, false, timeout);
1243         if (r == 0)
1244                 r = -ETIMEDOUT;
1245         else if (r > 0)
1246                 r = 0;
1247
1248         dma_fence_put(fence);
1249
1250 error:
1251         return r;
1252 }
1253
1254 /**
1255  * amdgpu_uvd_used_handles - returns used UVD handles
1256  *
1257  * @adev: amdgpu_device pointer
1258  *
1259  * Returns the number of UVD handles in use
1260  */
1261 uint32_t amdgpu_uvd_used_handles(struct amdgpu_device *adev)
1262 {
1263         unsigned i;
1264         uint32_t used_handles = 0;
1265
1266         for (i = 0; i < adev->uvd.max_handles; ++i) {
1267                 /*
1268                  * Handles can be freed in any order, and not
1269                  * necessarily linear. So we need to count
1270                  * all non-zero handles.
1271                  */
1272                 if (atomic_read(&adev->uvd.handles[i]))
1273                         used_handles++;
1274         }
1275
1276         return used_handles;
1277 }