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