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 #include <drm/drmP.h>
  34 #include <drm/drm.h>
  35
  36 #include "amdgpu.h"
  37 #include "amdgpu_pm.h"
  38 #include "amdgpu_uvd.h"
  39 #include "cikd.h"
  40 #include "uvd/uvd_4_2_d.h"
  41
  42 /* 1 second timeout */
  43 #define UVD_IDLE_TIMEOUT        msecs_to_jiffies(1000)
  44
  45 /* Firmware versions for VI */
  46 #define FW_1_65_10      ((1 << 24) | (65 << 16) | (10 << 8))
  47 #define FW_1_87_11      ((1 << 24) | (87 << 16) | (11 << 8))
  48 #define FW_1_87_12      ((1 << 24) | (87 << 16) | (12 << 8))
  49 #define FW_1_37_15      ((1 << 24) | (37 << 16) | (15 << 8))
  50
  51 /* Polaris10/11 firmware version */
  52 #define FW_1_66_16      ((1 << 24) | (66 << 16) | (16 << 8))
  53
  54 /* Firmware Names */
  55 #ifdef CONFIG_DRM_AMDGPU_CIK
  56 #define FIRMWARE_BONAIRE        "radeon/bonaire_uvd.bin"
  57 #define FIRMWARE_KABINI "radeon/kabini_uvd.bin"
  58 #define FIRMWARE_KAVERI "radeon/kaveri_uvd.bin"
  59 #define FIRMWARE_HAWAII "radeon/hawaii_uvd.bin"
  60 #define FIRMWARE_MULLINS        "radeon/mullins_uvd.bin"
  61 #endif
  62 #define FIRMWARE_TONGA          "amdgpu/tonga_uvd.bin"
  63 #define FIRMWARE_CARRIZO        "amdgpu/carrizo_uvd.bin"
  64 #define FIRMWARE_FIJI           "amdgpu/fiji_uvd.bin"
  65 #define FIRMWARE_STONEY         "amdgpu/stoney_uvd.bin"
  66 #define FIRMWARE_POLARIS10      "amdgpu/polaris10_uvd.bin"
  67 #define FIRMWARE_POLARIS11      "amdgpu/polaris11_uvd.bin"
  68 #define FIRMWARE_POLARIS12      "amdgpu/polaris12_uvd.bin"
  69
  70 #define FIRMWARE_VEGA10         "amdgpu/vega10_uvd.bin"
  71 #define FIRMWARE_VEGA12         "amdgpu/vega12_uvd.bin"
  72
  73 #define mmUVD_GPCOM_VCPU_DATA0_VEGA10 (0x03c4 + 0x7e00)
  74 #define mmUVD_GPCOM_VCPU_DATA1_VEGA10 (0x03c5 + 0x7e00)
  75 #define mmUVD_GPCOM_VCPU_CMD_VEGA10 (0x03c3 + 0x7e00)
  76 #define mmUVD_NO_OP_VEGA10 (0x03ff + 0x7e00)
  77 #define mmUVD_ENGINE_CNTL_VEGA10 (0x03c6 + 0x7e00)
  78
  79 /**
  80  * amdgpu_uvd_cs_ctx - Command submission parser context
  81  *
  82  * Used for emulating virtual memory support on UVD 4.2.
  83  */
  84 struct amdgpu_uvd_cs_ctx {
  85         struct amdgpu_cs_parser *parser;
  86         unsigned reg, count;
  87         unsigned data0, data1;
  88         unsigned idx;
  89         unsigned ib_idx;
  90
  91         /* does the IB has a msg command */
  92         bool has_msg_cmd;
  93
  94         /* minimum buffer sizes */
  95         unsigned *buf_sizes;
  96 };
  97
  98 #ifdef CONFIG_DRM_AMDGPU_CIK
  99 MODULE_FIRMWARE(FIRMWARE_BONAIRE);
 100 MODULE_FIRMWARE(FIRMWARE_KABINI);
 101 MODULE_FIRMWARE(FIRMWARE_KAVERI);
 102 MODULE_FIRMWARE(FIRMWARE_HAWAII);
 103 MODULE_FIRMWARE(FIRMWARE_MULLINS);
 104 #endif
 105 MODULE_FIRMWARE(FIRMWARE_TONGA);
 106 MODULE_FIRMWARE(FIRMWARE_CARRIZO);
 107 MODULE_FIRMWARE(FIRMWARE_FIJI);
 108 MODULE_FIRMWARE(FIRMWARE_STONEY);
 109 MODULE_FIRMWARE(FIRMWARE_POLARIS10);
 110 MODULE_FIRMWARE(FIRMWARE_POLARIS11);
 111 MODULE_FIRMWARE(FIRMWARE_POLARIS12);
 112
 113 MODULE_FIRMWARE(FIRMWARE_VEGA10);
 114 MODULE_FIRMWARE(FIRMWARE_VEGA12);
 115
 116 static void amdgpu_uvd_idle_work_handler(struct work_struct *work);
 117
 118 int amdgpu_uvd_sw_init(struct amdgpu_device *adev)
 119 {
 120         struct amdgpu_ring *ring;
 121         struct drm_sched_rq *rq;
 122         unsigned long bo_size;
 123         const char *fw_name;
 124         const struct common_firmware_header *hdr;
 125         unsigned version_major, version_minor, family_id;
 126         int i, r;
 127
 128         INIT_DELAYED_WORK(&adev->uvd.idle_work, amdgpu_uvd_idle_work_handler);
 129
 130         switch (adev->asic_type) {
 131 #ifdef CONFIG_DRM_AMDGPU_CIK
 132         case CHIP_BONAIRE:
 133                 fw_name = FIRMWARE_BONAIRE;
 134                 break;
 135         case CHIP_KABINI:
 136                 fw_name = FIRMWARE_KABINI;
 137                 break;
 138         case CHIP_KAVERI:
 139                 fw_name = FIRMWARE_KAVERI;
 140                 break;
 141         case CHIP_HAWAII:
 142                 fw_name = FIRMWARE_HAWAII;
 143                 break;
 144         case CHIP_MULLINS:
 145                 fw_name = FIRMWARE_MULLINS;
 146                 break;
 147 #endif
 148         case CHIP_TONGA:
 149                 fw_name = FIRMWARE_TONGA;
 150                 break;
 151         case CHIP_FIJI:
 152                 fw_name = FIRMWARE_FIJI;
 153                 break;
 154         case CHIP_CARRIZO:
 155                 fw_name = FIRMWARE_CARRIZO;
 156                 break;
 157         case CHIP_STONEY:
 158                 fw_name = FIRMWARE_STONEY;
 159                 break;
 160         case CHIP_POLARIS10:
 161                 fw_name = FIRMWARE_POLARIS10;
 162                 break;
 163         case CHIP_POLARIS11:
 164                 fw_name = FIRMWARE_POLARIS11;
 165                 break;
 166         case CHIP_POLARIS12:
 167                 fw_name = FIRMWARE_POLARIS12;
 168                 break;
 169         case CHIP_VEGA10:
 170                 fw_name = FIRMWARE_VEGA10;
 171                 break;
 172         case CHIP_VEGA12:
 173                 fw_name = FIRMWARE_VEGA12;
 174                 break;
 175         default:
 176                 return -EINVAL;
 177         }
 178
 179         r = request_firmware(&adev->uvd.fw, fw_name, adev->dev);
 180         if (r) {
 181                 dev_err(adev->dev, "amdgpu_uvd: Can't load firmware \"%s\"\n",
 182                         fw_name);
 183                 return r;
 184         }
 185
 186         r = amdgpu_ucode_validate(adev->uvd.fw);
 187         if (r) {
 188                 dev_err(adev->dev, "amdgpu_uvd: Can't validate firmware \"%s\"\n",
 189                         fw_name);
 190                 release_firmware(adev->uvd.fw);
 191                 adev->uvd.fw = NULL;
 192                 return r;
 193         }
 194
 195         /* Set the default UVD handles that the firmware can handle */
 196         adev->uvd.max_handles = AMDGPU_DEFAULT_UVD_HANDLES;
 197
 198         hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
 199         family_id = le32_to_cpu(hdr->ucode_version) & 0xff;
 200         version_major = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xff;
 201         version_minor = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff;
 202         DRM_INFO("Found UVD firmware Version: %hu.%hu Family ID: %hu\n",
 203                 version_major, version_minor, family_id);
 204
 205         /*
 206          * Limit the number of UVD handles depending on microcode major
 207          * and minor versions. The firmware version which has 40 UVD
 208          * instances support is 1.80. So all subsequent versions should
 209          * also have the same support.
 210          */
 211         if ((version_major > 0x01) ||
 212             ((version_major == 0x01) && (version_minor >= 0x50)))
 213                 adev->uvd.max_handles = AMDGPU_MAX_UVD_HANDLES;
 214
 215         adev->uvd.fw_version = ((version_major << 24) | (version_minor << 16) |
 216                                 (family_id << 8));
 217
 218         if ((adev->asic_type == CHIP_POLARIS10 ||
 219              adev->asic_type == CHIP_POLARIS11) &&
 220             (adev->uvd.fw_version < FW_1_66_16))
 221                 DRM_ERROR("POLARIS10/11 UVD firmware version %hu.%hu is too old.\n",
 222                           version_major, version_minor);
 223
 224         bo_size = AMDGPU_UVD_STACK_SIZE + AMDGPU_UVD_HEAP_SIZE
 225                   +  AMDGPU_UVD_SESSION_SIZE * adev->uvd.max_handles;
 226         if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP)
 227                 bo_size += AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(hdr->ucode_size_bytes) + 8);
 228
 229         r = amdgpu_bo_create_kernel(adev, bo_size, PAGE_SIZE,
 230                                     AMDGPU_GEM_DOMAIN_VRAM, &adev->uvd.vcpu_bo,
 231                                     &adev->uvd.gpu_addr, &adev->uvd.cpu_addr);
 232         if (r) {
 233                 dev_err(adev->dev, "(%d) failed to allocate UVD bo\n", r);
 234                 return r;
 235         }
 236
 237         ring = &adev->uvd.ring;
 238         rq = &ring->sched.sched_rq[DRM_SCHED_PRIORITY_NORMAL];
 239         r = drm_sched_entity_init(&ring->sched, &adev->uvd.entity,
 240                                   rq, amdgpu_sched_jobs, NULL);
 241         if (r != 0) {
 242                 DRM_ERROR("Failed setting up UVD run queue.\n");
 243                 return r;
 244         }
 245
 246         for (i = 0; i < adev->uvd.max_handles; ++i) {
 247                 atomic_set(&adev->uvd.handles[i], 0);
 248                 adev->uvd.filp[i] = NULL;
 249         }
 250
 251         /* from uvd v5.0 HW addressing capacity increased to 64 bits */
 252         if (!amdgpu_device_ip_block_version_cmp(adev, AMD_IP_BLOCK_TYPE_UVD, 5, 0))
 253                 adev->uvd.address_64_bit = true;
 254
 255         switch (adev->asic_type) {
 256         case CHIP_TONGA:
 257                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_65_10;
 258                 break;
 259         case CHIP_CARRIZO:
 260                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_87_11;
 261                 break;
 262         case CHIP_FIJI:
 263                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_87_12;
 264                 break;
 265         case CHIP_STONEY:
 266                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_37_15;
 267                 break;
 268         default:
 269                 adev->uvd.use_ctx_buf = adev->asic_type >= CHIP_POLARIS10;
 270         }
 271
 272         return 0;
 273 }
 274
 275 int amdgpu_uvd_sw_fini(struct amdgpu_device *adev)
 276 {
 277         int i;
 278         kfree(adev->uvd.saved_bo);
 279
 280         drm_sched_entity_fini(&adev->uvd.ring.sched, &adev->uvd.entity);
 281
 282         amdgpu_bo_free_kernel(&adev->uvd.vcpu_bo,
 283                               &adev->uvd.gpu_addr,
 284                               (void **)&adev->uvd.cpu_addr);
 285
 286         amdgpu_ring_fini(&adev->uvd.ring);
 287
 288         for (i = 0; i < AMDGPU_MAX_UVD_ENC_RINGS; ++i)
 289                 amdgpu_ring_fini(&adev->uvd.ring_enc[i]);
 290
 291         release_firmware(adev->uvd.fw);
 292
 293         return 0;
 294 }
 295
 296 int amdgpu_uvd_suspend(struct amdgpu_device *adev)
 297 {
 298         unsigned size;
 299         void *ptr;
 300         int i;
 301
 302         if (adev->uvd.vcpu_bo == NULL)
 303                 return 0;
 304
 305         cancel_delayed_work_sync(&adev->uvd.idle_work);
 306
 307         /* only valid for physical mode */
 308         if (adev->asic_type < CHIP_POLARIS10) {
 309                 for (i = 0; i < adev->uvd.max_handles; ++i)
 310                         if (atomic_read(&adev->uvd.handles[i]))
 311                                 break;
 312
 313                 if (i == adev->uvd.max_handles)
 314                         return 0;
 315         }
 316
 317         size = amdgpu_bo_size(adev->uvd.vcpu_bo);
 318         ptr = adev->uvd.cpu_addr;
 319
 320         adev->uvd.saved_bo = kmalloc(size, GFP_KERNEL);
 321         if (!adev->uvd.saved_bo)
 322                 return -ENOMEM;
 323
 324         memcpy_fromio(adev->uvd.saved_bo, ptr, size);
 325
 326         return 0;
 327 }
 328
 329 int amdgpu_uvd_resume(struct amdgpu_device *adev)
 330 {
 331         unsigned size;
 332         void *ptr;
 333
 334         if (adev->uvd.vcpu_bo == NULL)
 335                 return -EINVAL;
 336
 337         size = amdgpu_bo_size(adev->uvd.vcpu_bo);
 338         ptr = adev->uvd.cpu_addr;
 339
 340         if (adev->uvd.saved_bo != NULL) {
 341                 memcpy_toio(ptr, adev->uvd.saved_bo, size);
 342                 kfree(adev->uvd.saved_bo);
 343                 adev->uvd.saved_bo = NULL;
 344         } else {
 345                 const struct common_firmware_header *hdr;
 346                 unsigned offset;
 347
 348                 hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
 349                 if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
 350                         offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
 351                         memcpy_toio(adev->uvd.cpu_addr, adev->uvd.fw->data + offset,
 352                                     le32_to_cpu(hdr->ucode_size_bytes));
 353                         size -= le32_to_cpu(hdr->ucode_size_bytes);
 354                         ptr += le32_to_cpu(hdr->ucode_size_bytes);
 355                 }
 356                 memset_io(ptr, 0, size);
 357                 /* to restore uvd fence seq */
 358                 amdgpu_fence_driver_force_completion(&adev->uvd.ring);
 359         }
 360
 361         return 0;
 362 }
 363
 364 void amdgpu_uvd_free_handles(struct amdgpu_device *adev, struct drm_file *filp)
 365 {
 366         struct amdgpu_ring *ring = &adev->uvd.ring;
 367         int i, r;
 368
 369         for (i = 0; i < adev->uvd.max_handles; ++i) {
 370                 uint32_t handle = atomic_read(&adev->uvd.handles[i]);
 371                 if (handle != 0 && adev->uvd.filp[i] == filp) {
 372                         struct dma_fence *fence;
 373
 374                         r = amdgpu_uvd_get_destroy_msg(ring, handle,
 375                                                        false, &fence);
 376                         if (r) {
 377                                 DRM_ERROR("Error destroying UVD (%d)!\n", r);
 378                                 continue;
 379                         }
 380
 381                         dma_fence_wait(fence, false);
 382                         dma_fence_put(fence);
 383
 384                         adev->uvd.filp[i] = NULL;
 385                         atomic_set(&adev->uvd.handles[i], 0);
 386                 }
 387         }
 388 }
 389
 390 static void amdgpu_uvd_force_into_uvd_segment(struct amdgpu_bo *abo)
 391 {
 392         int i;
 393         for (i = 0; i < abo->placement.num_placement; ++i) {
 394                 abo->placements[i].fpfn = 0 >> PAGE_SHIFT;
 395                 abo->placements[i].lpfn = (256 * 1024 * 1024) >> PAGE_SHIFT;
 396         }
 397 }
 398
 399 static u64 amdgpu_uvd_get_addr_from_ctx(struct amdgpu_uvd_cs_ctx *ctx)
 400 {
 401         uint32_t lo, hi;
 402         uint64_t addr;
 403
 404         lo = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->data0);
 405         hi = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->data1);
 406         addr = ((uint64_t)lo) | (((uint64_t)hi) << 32);
 407
 408         return addr;
 409 }
 410
 411 /**
 412  * amdgpu_uvd_cs_pass1 - first parsing round
 413  *
 414  * @ctx: UVD parser context
 415  *
 416  * Make sure UVD message and feedback buffers are in VRAM and
 417  * nobody is violating an 256MB boundary.
 418  */
 419 static int amdgpu_uvd_cs_pass1(struct amdgpu_uvd_cs_ctx *ctx)
 420 {
 421         struct ttm_operation_ctx tctx = { false, false };
 422         struct amdgpu_bo_va_mapping *mapping;
 423         struct amdgpu_bo *bo;
 424         uint32_t cmd;
 425         uint64_t addr = amdgpu_uvd_get_addr_from_ctx(ctx);
 426         int r = 0;
 427
 428         r = amdgpu_cs_find_mapping(ctx->parser, addr, &bo, &mapping);
 429         if (r) {
 430                 DRM_ERROR("Can't find BO for addr 0x%08Lx\n", addr);
 431                 return r;
 432         }
 433
 434         if (!ctx->parser->adev->uvd.address_64_bit) {
 435                 /* check if it's a message or feedback command */
 436                 cmd = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->idx) >> 1;
 437                 if (cmd == 0x0 || cmd == 0x3) {
 438                         /* yes, force it into VRAM */
 439                         uint32_t domain = AMDGPU_GEM_DOMAIN_VRAM;
 440                         amdgpu_ttm_placement_from_domain(bo, domain);
 441                 }
 442                 amdgpu_uvd_force_into_uvd_segment(bo);
 443
 444                 r = ttm_bo_validate(&bo->tbo, &bo->placement, &tctx);
 445         }
 446
 447         return r;
 448 }
 449
 450 /**
 451  * amdgpu_uvd_cs_msg_decode - handle UVD decode message
 452  *
 453  * @msg: pointer to message structure
 454  * @buf_sizes: returned buffer sizes
 455  *
 456  * Peek into the decode message and calculate the necessary buffer sizes.
 457  */
 458 static int amdgpu_uvd_cs_msg_decode(struct amdgpu_device *adev, uint32_t *msg,
 459         unsigned buf_sizes[])
 460 {
 461         unsigned stream_type = msg[4];
 462         unsigned width = msg[6];
 463         unsigned height = msg[7];
 464         unsigned dpb_size = msg[9];
 465         unsigned pitch = msg[28];
 466         unsigned level = msg[57];
 467
 468         unsigned width_in_mb = width / 16;
 469         unsigned height_in_mb = ALIGN(height / 16, 2);
 470         unsigned fs_in_mb = width_in_mb * height_in_mb;
 471
 472         unsigned image_size, tmp, min_dpb_size, num_dpb_buffer;
 473         unsigned min_ctx_size = ~0;
 474
 475         image_size = width * height;
 476         image_size += image_size / 2;
 477         image_size = ALIGN(image_size, 1024);
 478
 479         switch (stream_type) {
 480         case 0: /* H264 */
 481                 switch(level) {
 482                 case 30:
 483                         num_dpb_buffer = 8100 / fs_in_mb;
 484                         break;
 485                 case 31:
 486                         num_dpb_buffer = 18000 / fs_in_mb;
 487                         break;
 488                 case 32:
 489                         num_dpb_buffer = 20480 / fs_in_mb;
 490                         break;
 491                 case 41:
 492                         num_dpb_buffer = 32768 / fs_in_mb;
 493                         break;
 494                 case 42:
 495                         num_dpb_buffer = 34816 / fs_in_mb;
 496                         break;
 497                 case 50:
 498                         num_dpb_buffer = 110400 / fs_in_mb;
 499                         break;
 500                 case 51:
 501                         num_dpb_buffer = 184320 / fs_in_mb;
 502                         break;
 503                 default:
 504                         num_dpb_buffer = 184320 / fs_in_mb;
 505                         break;
 506                 }
 507                 num_dpb_buffer++;
 508                 if (num_dpb_buffer > 17)
 509                         num_dpb_buffer = 17;
 510
 511                 /* reference picture buffer */
 512                 min_dpb_size = image_size * num_dpb_buffer;
 513
 514                 /* macroblock context buffer */
 515                 min_dpb_size += width_in_mb * height_in_mb * num_dpb_buffer * 192;
 516
 517                 /* IT surface buffer */
 518                 min_dpb_size += width_in_mb * height_in_mb * 32;
 519                 break;
 520
 521         case 1: /* VC1 */
 522
 523                 /* reference picture buffer */
 524                 min_dpb_size = image_size * 3;
 525
 526                 /* CONTEXT_BUFFER */
 527                 min_dpb_size += width_in_mb * height_in_mb * 128;
 528
 529                 /* IT surface buffer */
 530                 min_dpb_size += width_in_mb * 64;
 531
 532                 /* DB surface buffer */
 533                 min_dpb_size += width_in_mb * 128;
 534
 535                 /* BP */
 536                 tmp = max(width_in_mb, height_in_mb);
 537                 min_dpb_size += ALIGN(tmp * 7 * 16, 64);
 538                 break;
 539
 540         case 3: /* MPEG2 */
 541
 542                 /* reference picture buffer */
 543                 min_dpb_size = image_size * 3;
 544                 break;
 545
 546         case 4: /* MPEG4 */
 547
 548                 /* reference picture buffer */
 549                 min_dpb_size = image_size * 3;
 550
 551                 /* CM */
 552                 min_dpb_size += width_in_mb * height_in_mb * 64;
 553
 554                 /* IT surface buffer */
 555                 min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64);
 556                 break;
 557
 558         case 7: /* H264 Perf */
 559                 switch(level) {
 560                 case 30:
 561                         num_dpb_buffer = 8100 / fs_in_mb;
 562                         break;
 563                 case 31:
 564                         num_dpb_buffer = 18000 / fs_in_mb;
 565                         break;
 566                 case 32:
 567                         num_dpb_buffer = 20480 / fs_in_mb;
 568                         break;
 569                 case 41:
 570                         num_dpb_buffer = 32768 / fs_in_mb;
 571                         break;
 572                 case 42:
 573                         num_dpb_buffer = 34816 / fs_in_mb;
 574                         break;
 575                 case 50:
 576                         num_dpb_buffer = 110400 / fs_in_mb;
 577                         break;
 578                 case 51:
 579                         num_dpb_buffer = 184320 / fs_in_mb;
 580                         break;
 581                 default:
 582                         num_dpb_buffer = 184320 / fs_in_mb;
 583                         break;
 584                 }
 585                 num_dpb_buffer++;
 586                 if (num_dpb_buffer > 17)
 587                         num_dpb_buffer = 17;
 588
 589                 /* reference picture buffer */
 590                 min_dpb_size = image_size * num_dpb_buffer;
 591
 592                 if (!adev->uvd.use_ctx_buf){
 593                         /* macroblock context buffer */
 594                         min_dpb_size +=
 595                                 width_in_mb * height_in_mb * num_dpb_buffer * 192;
 596
 597                         /* IT surface buffer */
 598                         min_dpb_size += width_in_mb * height_in_mb * 32;
 599                 } else {
 600                         /* macroblock context buffer */
 601                         min_ctx_size =
 602                                 width_in_mb * height_in_mb * num_dpb_buffer * 192;
 603                 }
 604                 break;
 605
 606         case 8: /* MJPEG */
 607                 min_dpb_size = 0;
 608                 break;
 609
 610         case 16: /* H265 */
 611                 image_size = (ALIGN(width, 16) * ALIGN(height, 16) * 3) / 2;
 612                 image_size = ALIGN(image_size, 256);
 613
 614                 num_dpb_buffer = (le32_to_cpu(msg[59]) & 0xff) + 2;
 615                 min_dpb_size = image_size * num_dpb_buffer;
 616                 min_ctx_size = ((width + 255) / 16) * ((height + 255) / 16)
 617                                            * 16 * num_dpb_buffer + 52 * 1024;
 618                 break;
 619
 620         default:
 621                 DRM_ERROR("UVD codec not handled %d!\n", stream_type);
 622                 return -EINVAL;
 623         }
 624
 625         if (width > pitch) {
 626                 DRM_ERROR("Invalid UVD decoding target pitch!\n");
 627                 return -EINVAL;
 628         }
 629
 630         if (dpb_size < min_dpb_size) {
 631                 DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n",
 632                           dpb_size, min_dpb_size);
 633                 return -EINVAL;
 634         }
 635
 636         buf_sizes[0x1] = dpb_size;
 637         buf_sizes[0x2] = image_size;
 638         buf_sizes[0x4] = min_ctx_size;
 639         return 0;
 640 }
 641
 642 /**
 643  * amdgpu_uvd_cs_msg - handle UVD message
 644  *
 645  * @ctx: UVD parser context
 646  * @bo: buffer object containing the message
 647  * @offset: offset into the buffer object
 648  *
 649  * Peek into the UVD message and extract the session id.
 650  * Make sure that we don't open up to many sessions.
 651  */
 652 static int amdgpu_uvd_cs_msg(struct amdgpu_uvd_cs_ctx *ctx,
 653                              struct amdgpu_bo *bo, unsigned offset)
 654 {
 655         struct amdgpu_device *adev = ctx->parser->adev;
 656         int32_t *msg, msg_type, handle;
 657         void *ptr;
 658         long r;
 659         int i;
 660
 661         if (offset & 0x3F) {
 662                 DRM_ERROR("UVD messages must be 64 byte aligned!\n");
 663                 return -EINVAL;
 664         }
 665
 666         r = amdgpu_bo_kmap(bo, &ptr);
 667         if (r) {
 668                 DRM_ERROR("Failed mapping the UVD message (%ld)!\n", r);
 669                 return r;
 670         }
 671
 672         msg = ptr + offset;
 673
 674         msg_type = msg[1];
 675         handle = msg[2];
 676
 677         if (handle == 0) {
 678                 DRM_ERROR("Invalid UVD handle!\n");
 679                 return -EINVAL;
 680         }
 681
 682         switch (msg_type) {
 683         case 0:
 684                 /* it's a create msg, calc image size (width * height) */
 685                 amdgpu_bo_kunmap(bo);
 686
 687                 /* try to alloc a new handle */
 688                 for (i = 0; i < adev->uvd.max_handles; ++i) {
 689                         if (atomic_read(&adev->uvd.handles[i]) == handle) {
 690                                 DRM_ERROR("Handle 0x%x already in use!\n", handle);
 691                                 return -EINVAL;
 692                         }
 693
 694                         if (!atomic_cmpxchg(&adev->uvd.handles[i], 0, handle)) {
 695                                 adev->uvd.filp[i] = ctx->parser->filp;
 696                                 return 0;
 697                         }
 698                 }
 699
 700                 DRM_ERROR("No more free UVD handles!\n");
 701                 return -ENOSPC;
 702
 703         case 1:
 704                 /* it's a decode msg, calc buffer sizes */
 705                 r = amdgpu_uvd_cs_msg_decode(adev, msg, ctx->buf_sizes);
 706                 amdgpu_bo_kunmap(bo);
 707                 if (r)
 708                         return r;
 709
 710                 /* validate the handle */
 711                 for (i = 0; i < adev->uvd.max_handles; ++i) {
 712                         if (atomic_read(&adev->uvd.handles[i]) == handle) {
 713                                 if (adev->uvd.filp[i] != ctx->parser->filp) {
 714                                         DRM_ERROR("UVD handle collision detected!\n");
 715                                         return -EINVAL;
 716                                 }
 717                                 return 0;
 718                         }
 719                 }
 720
 721                 DRM_ERROR("Invalid UVD handle 0x%x!\n", handle);
 722                 return -ENOENT;
 723
 724         case 2:
 725                 /* it's a destroy msg, free the handle */
 726                 for (i = 0; i < adev->uvd.max_handles; ++i)
 727                         atomic_cmpxchg(&adev->uvd.handles[i], handle, 0);
 728                 amdgpu_bo_kunmap(bo);
 729                 return 0;
 730
 731         default:
 732                 DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
 733                 return -EINVAL;
 734         }
 735         BUG();
 736         return -EINVAL;
 737 }
 738
 739 /**
 740  * amdgpu_uvd_cs_pass2 - second parsing round
 741  *
 742  * @ctx: UVD parser context
 743  *
 744  * Patch buffer addresses, make sure buffer sizes are correct.
 745  */
 746 static int amdgpu_uvd_cs_pass2(struct amdgpu_uvd_cs_ctx *ctx)
 747 {
 748         struct amdgpu_bo_va_mapping *mapping;
 749         struct amdgpu_bo *bo;
 750         uint32_t cmd;
 751         uint64_t start, end;
 752         uint64_t addr = amdgpu_uvd_get_addr_from_ctx(ctx);
 753         int r;
 754
 755         r = amdgpu_cs_find_mapping(ctx->parser, addr, &bo, &mapping);
 756         if (r) {
 757                 DRM_ERROR("Can't find BO for addr 0x%08Lx\n", addr);
 758                 return r;
 759         }
 760
 761         start = amdgpu_bo_gpu_offset(bo);
 762
 763         end = (mapping->last + 1 - mapping->start);
 764         end = end * AMDGPU_GPU_PAGE_SIZE + start;
 765
 766         addr -= mapping->start * AMDGPU_GPU_PAGE_SIZE;
 767         start += addr;
 768
 769         amdgpu_set_ib_value(ctx->parser, ctx->ib_idx, ctx->data0,
 770                             lower_32_bits(start));
 771         amdgpu_set_ib_value(ctx->parser, ctx->ib_idx, ctx->data1,
 772                             upper_32_bits(start));
 773
 774         cmd = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->idx) >> 1;
 775         if (cmd < 0x4) {
 776                 if ((end - start) < ctx->buf_sizes[cmd]) {
 777                         DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
 778                                   (unsigned)(end - start),
 779                                   ctx->buf_sizes[cmd]);
 780                         return -EINVAL;
 781                 }
 782
 783         } else if (cmd == 0x206) {
 784                 if ((end - start) < ctx->buf_sizes[4]) {
 785                         DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
 786                                           (unsigned)(end - start),
 787                                           ctx->buf_sizes[4]);
 788                         return -EINVAL;
 789                 }
 790         } else if ((cmd != 0x100) && (cmd != 0x204)) {
 791                 DRM_ERROR("invalid UVD command %X!\n", cmd);
 792                 return -EINVAL;
 793         }
 794
 795         if (!ctx->parser->adev->uvd.address_64_bit) {
 796                 if ((start >> 28) != ((end - 1) >> 28)) {
 797                         DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
 798                                   start, end);
 799                         return -EINVAL;
 800                 }
 801
 802                 if ((cmd == 0 || cmd == 0x3) &&
 803                     (start >> 28) != (ctx->parser->adev->uvd.gpu_addr >> 28)) {
 804                         DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n",
 805                                   start, end);
 806                         return -EINVAL;
 807                 }
 808         }
 809
 810         if (cmd == 0) {
 811                 ctx->has_msg_cmd = true;
 812                 r = amdgpu_uvd_cs_msg(ctx, bo, addr);
 813                 if (r)
 814                         return r;
 815         } else if (!ctx->has_msg_cmd) {
 816                 DRM_ERROR("Message needed before other commands are send!\n");
 817                 return -EINVAL;
 818         }
 819
 820         return 0;
 821 }
 822
 823 /**
 824  * amdgpu_uvd_cs_reg - parse register writes
 825  *
 826  * @ctx: UVD parser context
 827  * @cb: callback function
 828  *
 829  * Parse the register writes, call cb on each complete command.
 830  */
 831 static int amdgpu_uvd_cs_reg(struct amdgpu_uvd_cs_ctx *ctx,
 832                              int (*cb)(struct amdgpu_uvd_cs_ctx *ctx))
 833 {
 834         struct amdgpu_ib *ib = &ctx->parser->job->ibs[ctx->ib_idx];
 835         int i, r;
 836
 837         ctx->idx++;
 838         for (i = 0; i <= ctx->count; ++i) {
 839                 unsigned reg = ctx->reg + i;
 840
 841                 if (ctx->idx >= ib->length_dw) {
 842                         DRM_ERROR("Register command after end of CS!\n");
 843                         return -EINVAL;
 844                 }
 845
 846                 switch (reg) {
 847                 case mmUVD_GPCOM_VCPU_DATA0:
 848                         ctx->data0 = ctx->idx;
 849                         break;
 850                 case mmUVD_GPCOM_VCPU_DATA1:
 851                         ctx->data1 = ctx->idx;
 852                         break;
 853                 case mmUVD_GPCOM_VCPU_CMD:
 854                         r = cb(ctx);
 855                         if (r)
 856                                 return r;
 857                         break;
 858                 case mmUVD_ENGINE_CNTL:
 859                 case mmUVD_NO_OP:
 860                         break;
 861                 default:
 862                         DRM_ERROR("Invalid reg 0x%X!\n", reg);
 863                         return -EINVAL;
 864                 }
 865                 ctx->idx++;
 866         }
 867         return 0;
 868 }
 869
 870 /**
 871  * amdgpu_uvd_cs_packets - parse UVD packets
 872  *
 873  * @ctx: UVD parser context
 874  * @cb: callback function
 875  *
 876  * Parse the command stream packets.
 877  */
 878 static int amdgpu_uvd_cs_packets(struct amdgpu_uvd_cs_ctx *ctx,
 879                                  int (*cb)(struct amdgpu_uvd_cs_ctx *ctx))
 880 {
 881         struct amdgpu_ib *ib = &ctx->parser->job->ibs[ctx->ib_idx];
 882         int r;
 883
 884         for (ctx->idx = 0 ; ctx->idx < ib->length_dw; ) {
 885                 uint32_t cmd = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->idx);
 886                 unsigned type = CP_PACKET_GET_TYPE(cmd);
 887                 switch (type) {
 888                 case PACKET_TYPE0:
 889                         ctx->reg = CP_PACKET0_GET_REG(cmd);
 890                         ctx->count = CP_PACKET_GET_COUNT(cmd);
 891                         r = amdgpu_uvd_cs_reg(ctx, cb);
 892                         if (r)
 893                                 return r;
 894                         break;
 895                 case PACKET_TYPE2:
 896                         ++ctx->idx;
 897                         break;
 898                 default:
 899                         DRM_ERROR("Unknown packet type %d !\n", type);
 900                         return -EINVAL;
 901                 }
 902         }
 903         return 0;
 904 }
 905
 906 /**
 907  * amdgpu_uvd_ring_parse_cs - UVD command submission parser
 908  *
 909  * @parser: Command submission parser context
 910  *
 911  * Parse the command stream, patch in addresses as necessary.
 912  */
 913 int amdgpu_uvd_ring_parse_cs(struct amdgpu_cs_parser *parser, uint32_t ib_idx)
 914 {
 915         struct amdgpu_uvd_cs_ctx ctx = {};
 916         unsigned buf_sizes[] = {
 917                 [0x00000000]    =       2048,
 918                 [0x00000001]    =       0xFFFFFFFF,
 919                 [0x00000002]    =       0xFFFFFFFF,
 920                 [0x00000003]    =       2048,
 921                 [0x00000004]    =       0xFFFFFFFF,
 922         };
 923         struct amdgpu_ib *ib = &parser->job->ibs[ib_idx];
 924         int r;
 925
 926         parser->job->vm = NULL;
 927         ib->gpu_addr = amdgpu_sa_bo_gpu_addr(ib->sa_bo);
 928
 929         if (ib->length_dw % 16) {
 930                 DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n",
 931                           ib->length_dw);
 932                 return -EINVAL;
 933         }
 934
 935         ctx.parser = parser;
 936         ctx.buf_sizes = buf_sizes;
 937         ctx.ib_idx = ib_idx;
 938
 939         /* first round only required on chips without UVD 64 bit address support */
 940         if (!parser->adev->uvd.address_64_bit) {
 941                 /* first round, make sure the buffers are actually in the UVD segment */
 942                 r = amdgpu_uvd_cs_packets(&ctx, amdgpu_uvd_cs_pass1);
 943                 if (r)
 944                         return r;
 945         }
 946
 947         /* second round, patch buffer addresses into the command stream */
 948         r = amdgpu_uvd_cs_packets(&ctx, amdgpu_uvd_cs_pass2);
 949         if (r)
 950                 return r;
 951
 952         if (!ctx.has_msg_cmd) {
 953                 DRM_ERROR("UVD-IBs need a msg command!\n");
 954                 return -EINVAL;
 955         }
 956
 957         return 0;
 958 }
 959
 960 static int amdgpu_uvd_send_msg(struct amdgpu_ring *ring, struct amdgpu_bo *bo,
 961                                bool direct, struct dma_fence **fence)
 962 {
 963         struct amdgpu_device *adev = ring->adev;
 964         struct dma_fence *f = NULL;
 965         struct amdgpu_job *job;
 966         struct amdgpu_ib *ib;
 967         uint32_t data[4];
 968         uint64_t addr;
 969         long r;
 970         int i;
 971
 972         amdgpu_bo_kunmap(bo);
 973         amdgpu_bo_unpin(bo);
 974
 975         if (!ring->adev->uvd.address_64_bit) {
 976                 struct ttm_operation_ctx ctx = { true, false };
 977
 978                 amdgpu_ttm_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_VRAM);
 979                 amdgpu_uvd_force_into_uvd_segment(bo);
 980                 r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
 981                 if (r)
 982                         goto err;
 983         }
 984
 985         r = amdgpu_job_alloc_with_ib(adev, 64, &job);
 986         if (r)
 987                 goto err;
 988
 989         if (adev->asic_type >= CHIP_VEGA10) {
 990                 data[0] = PACKET0(mmUVD_GPCOM_VCPU_DATA0_VEGA10, 0);
 991                 data[1] = PACKET0(mmUVD_GPCOM_VCPU_DATA1_VEGA10, 0);
 992                 data[2] = PACKET0(mmUVD_GPCOM_VCPU_CMD_VEGA10, 0);
 993                 data[3] = PACKET0(mmUVD_NO_OP_VEGA10, 0);
 994         } else {
 995                 data[0] = PACKET0(mmUVD_GPCOM_VCPU_DATA0, 0);
 996                 data[1] = PACKET0(mmUVD_GPCOM_VCPU_DATA1, 0);
 997                 data[2] = PACKET0(mmUVD_GPCOM_VCPU_CMD, 0);
 998                 data[3] = PACKET0(mmUVD_NO_OP, 0);
 999         }
1000
1001         ib = &job->ibs[0];
1002         addr = amdgpu_bo_gpu_offset(bo);
1003         ib->ptr[0] = data[0];
1004         ib->ptr[1] = addr;
1005         ib->ptr[2] = data[1];
1006         ib->ptr[3] = addr >> 32;
1007         ib->ptr[4] = data[2];
1008         ib->ptr[5] = 0;
1009         for (i = 6; i < 16; i += 2) {
1010                 ib->ptr[i] = data[3];
1011                 ib->ptr[i+1] = 0;
1012         }
1013         ib->length_dw = 16;
1014
1015         if (direct) {
1016                 r = reservation_object_wait_timeout_rcu(bo->tbo.resv,
1017                                                         true, false,
1018                                                         msecs_to_jiffies(10));
1019                 if (r == 0)
1020                         r = -ETIMEDOUT;
1021                 if (r < 0)
1022                         goto err_free;
1023
1024                 r = amdgpu_ib_schedule(ring, 1, ib, NULL, &f);
1025                 job->fence = dma_fence_get(f);
1026                 if (r)
1027                         goto err_free;
1028
1029                 amdgpu_job_free(job);
1030         } else {
1031                 r = amdgpu_sync_resv(adev, &job->sync, bo->tbo.resv,
1032                                      AMDGPU_FENCE_OWNER_UNDEFINED, false);
1033                 if (r)
1034                         goto err_free;
1035
1036                 r = amdgpu_job_submit(job, ring, &adev->uvd.entity,
1037                                       AMDGPU_FENCE_OWNER_UNDEFINED, &f);
1038                 if (r)
1039                         goto err_free;
1040         }
1041
1042         amdgpu_bo_fence(bo, f, false);
1043         amdgpu_bo_unreserve(bo);
1044         amdgpu_bo_unref(&bo);
1045
1046         if (fence)
1047                 *fence = dma_fence_get(f);
1048         dma_fence_put(f);
1049
1050         return 0;
1051
1052 err_free:
1053         amdgpu_job_free(job);
1054
1055 err:
1056         amdgpu_bo_unreserve(bo);
1057         amdgpu_bo_unref(&bo);
1058         return r;
1059 }
1060
1061 /* multiple fence commands without any stream commands in between can
1062    crash the vcpu so just try to emmit a dummy create/destroy msg to
1063    avoid this */
1064 int amdgpu_uvd_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
1065                               struct dma_fence **fence)
1066 {
1067         struct amdgpu_device *adev = ring->adev;
1068         struct amdgpu_bo *bo = NULL;
1069         uint32_t *msg;
1070         int r, i;
1071
1072         r = amdgpu_bo_create_reserved(adev, 1024, PAGE_SIZE,
1073                                       AMDGPU_GEM_DOMAIN_VRAM,
1074                                       &bo, NULL, (void **)&msg);
1075         if (r)
1076                 return r;
1077
1078         /* stitch together an UVD create msg */
1079         msg[0] = cpu_to_le32(0x00000de4);
1080         msg[1] = cpu_to_le32(0x00000000);
1081         msg[2] = cpu_to_le32(handle);
1082         msg[3] = cpu_to_le32(0x00000000);
1083         msg[4] = cpu_to_le32(0x00000000);
1084         msg[5] = cpu_to_le32(0x00000000);
1085         msg[6] = cpu_to_le32(0x00000000);
1086         msg[7] = cpu_to_le32(0x00000780);
1087         msg[8] = cpu_to_le32(0x00000440);
1088         msg[9] = cpu_to_le32(0x00000000);
1089         msg[10] = cpu_to_le32(0x01b37000);
1090         for (i = 11; i < 1024; ++i)
1091                 msg[i] = cpu_to_le32(0x0);
1092
1093         return amdgpu_uvd_send_msg(ring, bo, true, fence);
1094 }
1095
1096 int amdgpu_uvd_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
1097                                bool direct, struct dma_fence **fence)
1098 {
1099         struct amdgpu_device *adev = ring->adev;
1100         struct amdgpu_bo *bo = NULL;
1101         uint32_t *msg;
1102         int r, i;
1103
1104         r = amdgpu_bo_create_reserved(adev, 1024, PAGE_SIZE,
1105                                       AMDGPU_GEM_DOMAIN_VRAM,
1106                                       &bo, NULL, (void **)&msg);
1107         if (r)
1108                 return r;
1109
1110         /* stitch together an UVD destroy msg */
1111         msg[0] = cpu_to_le32(0x00000de4);
1112         msg[1] = cpu_to_le32(0x00000002);
1113         msg[2] = cpu_to_le32(handle);
1114         msg[3] = cpu_to_le32(0x00000000);
1115         for (i = 4; i < 1024; ++i)
1116                 msg[i] = cpu_to_le32(0x0);
1117
1118         return amdgpu_uvd_send_msg(ring, bo, direct, fence);
1119 }
1120
1121 static void amdgpu_uvd_idle_work_handler(struct work_struct *work)
1122 {
1123         struct amdgpu_device *adev =
1124                 container_of(work, struct amdgpu_device, uvd.idle_work.work);
1125         unsigned fences = amdgpu_fence_count_emitted(&adev->uvd.ring);
1126
1127         if (fences == 0) {
1128                 if (adev->pm.dpm_enabled) {
1129                         amdgpu_dpm_enable_uvd(adev, false);
1130                 } else {
1131                         amdgpu_asic_set_uvd_clocks(adev, 0, 0);
1132                         /* shutdown the UVD block */
1133                         amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
1134                                                                AMD_PG_STATE_GATE);
1135                         amdgpu_device_ip_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
1136                                                                AMD_CG_STATE_GATE);
1137                 }
1138         } else {
1139                 schedule_delayed_work(&adev->uvd.idle_work, UVD_IDLE_TIMEOUT);
1140         }
1141 }
1142
1143 void amdgpu_uvd_ring_begin_use(struct amdgpu_ring *ring)
1144 {
1145         struct amdgpu_device *adev = ring->adev;
1146         bool set_clocks;
1147
1148         if (amdgpu_sriov_vf(adev))
1149                 return;
1150
1151         set_clocks = !cancel_delayed_work_sync(&adev->uvd.idle_work);
1152         if (set_clocks) {
1153                 if (adev->pm.dpm_enabled) {
1154                         amdgpu_dpm_enable_uvd(adev, true);
1155                 } else {
1156                         amdgpu_asic_set_uvd_clocks(adev, 53300, 40000);
1157                         amdgpu_device_ip_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
1158                                                                AMD_CG_STATE_UNGATE);
1159                         amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
1160                                                                AMD_PG_STATE_UNGATE);
1161                 }
1162         }
1163 }
1164
1165 void amdgpu_uvd_ring_end_use(struct amdgpu_ring *ring)
1166 {
1167         if (!amdgpu_sriov_vf(ring->adev))
1168                 schedule_delayed_work(&ring->adev->uvd.idle_work, UVD_IDLE_TIMEOUT);
1169 }
1170
1171 /**
1172  * amdgpu_uvd_ring_test_ib - test ib execution
1173  *
1174  * @ring: amdgpu_ring pointer
1175  *
1176  * Test if we can successfully execute an IB
1177  */
1178 int amdgpu_uvd_ring_test_ib(struct amdgpu_ring *ring, long timeout)
1179 {
1180         struct dma_fence *fence;
1181         long r;
1182
1183         r = amdgpu_uvd_get_create_msg(ring, 1, NULL);
1184         if (r) {
1185                 DRM_ERROR("amdgpu: failed to get create msg (%ld).\n", r);
1186                 goto error;
1187         }
1188
1189         r = amdgpu_uvd_get_destroy_msg(ring, 1, true, &fence);
1190         if (r) {
1191                 DRM_ERROR("amdgpu: failed to get destroy ib (%ld).\n", r);
1192                 goto error;
1193         }
1194
1195         r = dma_fence_wait_timeout(fence, false, timeout);
1196         if (r == 0) {
1197                 DRM_ERROR("amdgpu: IB test timed out.\n");
1198                 r = -ETIMEDOUT;
1199         } else if (r < 0) {
1200                 DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
1201         } else {
1202                 DRM_DEBUG("ib test on ring %d succeeded\n",  ring->idx);
1203                 r = 0;
1204         }
1205
1206         dma_fence_put(fence);
1207
1208 error:
1209         return r;
1210 }
1211
1212 /**
1213  * amdgpu_uvd_used_handles - returns used UVD handles
1214  *
1215  * @adev: amdgpu_device pointer
1216  *
1217  * Returns the number of UVD handles in use
1218  */
1219 uint32_t amdgpu_uvd_used_handles(struct amdgpu_device *adev)
1220 {
1221         unsigned i;
1222         uint32_t used_handles = 0;
1223
1224         for (i = 0; i < adev->uvd.max_handles; ++i) {
1225                 /*
1226                  * Handles can be freed in any order, and not
1227                  * necessarily linear. So we need to count
1228                  * all non-zero handles.
1229                  */
1230                 if (atomic_read(&adev->uvd.handles[i]))
1231                         used_handles++;
1232         }
1233
1234         return used_handles;
1235 }