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_MS     1000
  44
  45 /* Firmware Names */
  46 #ifdef CONFIG_DRM_AMDGPU_CIK
  47 #define FIRMWARE_BONAIRE        "radeon/bonaire_uvd.bin"
  48 #define FIRMWARE_KABINI         "radeon/kabini_uvd.bin"
  49 #define FIRMWARE_KAVERI         "radeon/kaveri_uvd.bin"
  50 #define FIRMWARE_HAWAII         "radeon/hawaii_uvd.bin"
  51 #define FIRMWARE_MULLINS        "radeon/mullins_uvd.bin"
  52 #endif
  53 #define FIRMWARE_TONGA          "amdgpu/tonga_uvd.bin"
  54 #define FIRMWARE_CARRIZO        "amdgpu/carrizo_uvd.bin"
  55 #define FIRMWARE_FIJI           "amdgpu/fiji_uvd.bin"
  56 #define FIRMWARE_STONEY         "amdgpu/stoney_uvd.bin"
  57
  58 /**
  59  * amdgpu_uvd_cs_ctx - Command submission parser context
  60  *
  61  * Used for emulating virtual memory support on UVD 4.2.
  62  */
  63 struct amdgpu_uvd_cs_ctx {
  64         struct amdgpu_cs_parser *parser;
  65         unsigned reg, count;
  66         unsigned data0, data1;
  67         unsigned idx;
  68         unsigned ib_idx;
  69
  70         /* does the IB has a msg command */
  71         bool has_msg_cmd;
  72
  73         /* minimum buffer sizes */
  74         unsigned *buf_sizes;
  75 };
  76
  77 #ifdef CONFIG_DRM_AMDGPU_CIK
  78 MODULE_FIRMWARE(FIRMWARE_BONAIRE);
  79 MODULE_FIRMWARE(FIRMWARE_KABINI);
  80 MODULE_FIRMWARE(FIRMWARE_KAVERI);
  81 MODULE_FIRMWARE(FIRMWARE_HAWAII);
  82 MODULE_FIRMWARE(FIRMWARE_MULLINS);
  83 #endif
  84 MODULE_FIRMWARE(FIRMWARE_TONGA);
  85 MODULE_FIRMWARE(FIRMWARE_CARRIZO);
  86 MODULE_FIRMWARE(FIRMWARE_FIJI);
  87 MODULE_FIRMWARE(FIRMWARE_STONEY);
  88
  89 static void amdgpu_uvd_note_usage(struct amdgpu_device *adev);
  90 static void amdgpu_uvd_idle_work_handler(struct work_struct *work);
  91
  92 int amdgpu_uvd_sw_init(struct amdgpu_device *adev)
  93 {
  94         struct amdgpu_ring *ring;
  95         struct amd_sched_rq *rq;
  96         unsigned long bo_size;
  97         const char *fw_name;
  98         const struct common_firmware_header *hdr;
  99         unsigned version_major, version_minor, family_id;
 100         int i, r;
 101
 102         INIT_DELAYED_WORK(&adev->uvd.idle_work, amdgpu_uvd_idle_work_handler);
 103
 104         switch (adev->asic_type) {
 105 #ifdef CONFIG_DRM_AMDGPU_CIK
 106         case CHIP_BONAIRE:
 107                 fw_name = FIRMWARE_BONAIRE;
 108                 break;
 109         case CHIP_KABINI:
 110                 fw_name = FIRMWARE_KABINI;
 111                 break;
 112         case CHIP_KAVERI:
 113                 fw_name = FIRMWARE_KAVERI;
 114                 break;
 115         case CHIP_HAWAII:
 116                 fw_name = FIRMWARE_HAWAII;
 117                 break;
 118         case CHIP_MULLINS:
 119                 fw_name = FIRMWARE_MULLINS;
 120                 break;
 121 #endif
 122         case CHIP_TONGA:
 123                 fw_name = FIRMWARE_TONGA;
 124                 break;
 125         case CHIP_FIJI:
 126                 fw_name = FIRMWARE_FIJI;
 127                 break;
 128         case CHIP_CARRIZO:
 129                 fw_name = FIRMWARE_CARRIZO;
 130                 break;
 131         case CHIP_STONEY:
 132                 fw_name = FIRMWARE_STONEY;
 133                 break;
 134         default:
 135                 return -EINVAL;
 136         }
 137
 138         r = request_firmware(&adev->uvd.fw, fw_name, adev->dev);
 139         if (r) {
 140                 dev_err(adev->dev, "amdgpu_uvd: Can't load firmware \"%s\"\n",
 141                         fw_name);
 142                 return r;
 143         }
 144
 145         r = amdgpu_ucode_validate(adev->uvd.fw);
 146         if (r) {
 147                 dev_err(adev->dev, "amdgpu_uvd: Can't validate firmware \"%s\"\n",
 148                         fw_name);
 149                 release_firmware(adev->uvd.fw);
 150                 adev->uvd.fw = NULL;
 151                 return r;
 152         }
 153
 154         hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
 155         family_id = le32_to_cpu(hdr->ucode_version) & 0xff;
 156         version_major = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xff;
 157         version_minor = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff;
 158         DRM_INFO("Found UVD firmware Version: %hu.%hu Family ID: %hu\n",
 159                 version_major, version_minor, family_id);
 160
 161         bo_size = AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(hdr->ucode_size_bytes) + 8)
 162                  +  AMDGPU_UVD_STACK_SIZE + AMDGPU_UVD_HEAP_SIZE;
 163         r = amdgpu_bo_create(adev, bo_size, PAGE_SIZE, true,
 164                              AMDGPU_GEM_DOMAIN_VRAM,
 165                              AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
 166                              NULL, NULL, &adev->uvd.vcpu_bo);
 167         if (r) {
 168                 dev_err(adev->dev, "(%d) failed to allocate UVD bo\n", r);
 169                 return r;
 170         }
 171
 172         r = amdgpu_bo_reserve(adev->uvd.vcpu_bo, false);
 173         if (r) {
 174                 amdgpu_bo_unref(&adev->uvd.vcpu_bo);
 175                 dev_err(adev->dev, "(%d) failed to reserve UVD bo\n", r);
 176                 return r;
 177         }
 178
 179         r = amdgpu_bo_pin(adev->uvd.vcpu_bo, AMDGPU_GEM_DOMAIN_VRAM,
 180                           &adev->uvd.gpu_addr);
 181         if (r) {
 182                 amdgpu_bo_unreserve(adev->uvd.vcpu_bo);
 183                 amdgpu_bo_unref(&adev->uvd.vcpu_bo);
 184                 dev_err(adev->dev, "(%d) UVD bo pin failed\n", r);
 185                 return r;
 186         }
 187
 188         r = amdgpu_bo_kmap(adev->uvd.vcpu_bo, &adev->uvd.cpu_addr);
 189         if (r) {
 190                 dev_err(adev->dev, "(%d) UVD map failed\n", r);
 191                 return r;
 192         }
 193
 194         amdgpu_bo_unreserve(adev->uvd.vcpu_bo);
 195
 196         ring = &adev->uvd.ring;
 197         rq = &ring->sched.sched_rq[AMD_SCHED_PRIORITY_NORMAL];
 198         r = amd_sched_entity_init(&ring->sched, &adev->uvd.entity,
 199                                   rq, amdgpu_sched_jobs);
 200         if (r != 0) {
 201                 DRM_ERROR("Failed setting up UVD run queue.\n");
 202                 return r;
 203         }
 204
 205         for (i = 0; i < AMDGPU_MAX_UVD_HANDLES; ++i) {
 206                 atomic_set(&adev->uvd.handles[i], 0);
 207                 adev->uvd.filp[i] = NULL;
 208         }
 209
 210         /* from uvd v5.0 HW addressing capacity increased to 64 bits */
 211         if (!amdgpu_ip_block_version_cmp(adev, AMD_IP_BLOCK_TYPE_UVD, 5, 0))
 212                 adev->uvd.address_64_bit = true;
 213
 214         return 0;
 215 }
 216
 217 int amdgpu_uvd_sw_fini(struct amdgpu_device *adev)
 218 {
 219         int r;
 220
 221         if (adev->uvd.vcpu_bo == NULL)
 222                 return 0;
 223
 224         amd_sched_entity_fini(&adev->uvd.ring.sched, &adev->uvd.entity);
 225
 226         r = amdgpu_bo_reserve(adev->uvd.vcpu_bo, false);
 227         if (!r) {
 228                 amdgpu_bo_kunmap(adev->uvd.vcpu_bo);
 229                 amdgpu_bo_unpin(adev->uvd.vcpu_bo);
 230                 amdgpu_bo_unreserve(adev->uvd.vcpu_bo);
 231         }
 232
 233         amdgpu_bo_unref(&adev->uvd.vcpu_bo);
 234
 235         amdgpu_ring_fini(&adev->uvd.ring);
 236
 237         release_firmware(adev->uvd.fw);
 238
 239         return 0;
 240 }
 241
 242 int amdgpu_uvd_suspend(struct amdgpu_device *adev)
 243 {
 244         unsigned size;
 245         void *ptr;
 246         int i;
 247
 248         if (adev->uvd.vcpu_bo == NULL)
 249                 return 0;
 250
 251         for (i = 0; i < AMDGPU_MAX_UVD_HANDLES; ++i)
 252                 if (atomic_read(&adev->uvd.handles[i]))
 253                         break;
 254
 255         if (i == AMDGPU_MAX_UVD_HANDLES)
 256                 return 0;
 257
 258         size = amdgpu_bo_size(adev->uvd.vcpu_bo);
 259         ptr = adev->uvd.cpu_addr;
 260
 261         adev->uvd.saved_bo = kmalloc(size, GFP_KERNEL);
 262         if (!adev->uvd.saved_bo)
 263                 return -ENOMEM;
 264
 265         memcpy(adev->uvd.saved_bo, ptr, size);
 266
 267         return 0;
 268 }
 269
 270 int amdgpu_uvd_resume(struct amdgpu_device *adev)
 271 {
 272         unsigned size;
 273         void *ptr;
 274
 275         if (adev->uvd.vcpu_bo == NULL)
 276                 return -EINVAL;
 277
 278         size = amdgpu_bo_size(adev->uvd.vcpu_bo);
 279         ptr = adev->uvd.cpu_addr;
 280
 281         if (adev->uvd.saved_bo != NULL) {
 282                 memcpy(ptr, adev->uvd.saved_bo, size);
 283                 kfree(adev->uvd.saved_bo);
 284                 adev->uvd.saved_bo = NULL;
 285         } else {
 286                 const struct common_firmware_header *hdr;
 287                 unsigned offset;
 288
 289                 hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
 290                 offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
 291                 memcpy(adev->uvd.cpu_addr, (adev->uvd.fw->data) + offset,
 292                         (adev->uvd.fw->size) - offset);
 293                 size -= le32_to_cpu(hdr->ucode_size_bytes);
 294                 ptr += le32_to_cpu(hdr->ucode_size_bytes);
 295                 memset(ptr, 0, size);
 296         }
 297
 298         return 0;
 299 }
 300
 301 void amdgpu_uvd_free_handles(struct amdgpu_device *adev, struct drm_file *filp)
 302 {
 303         struct amdgpu_ring *ring = &adev->uvd.ring;
 304         int i, r;
 305
 306         for (i = 0; i < AMDGPU_MAX_UVD_HANDLES; ++i) {
 307                 uint32_t handle = atomic_read(&adev->uvd.handles[i]);
 308                 if (handle != 0 && adev->uvd.filp[i] == filp) {
 309                         struct fence *fence;
 310
 311                         amdgpu_uvd_note_usage(adev);
 312
 313                         r = amdgpu_uvd_get_destroy_msg(ring, handle,
 314                                                        false, &fence);
 315                         if (r) {
 316                                 DRM_ERROR("Error destroying UVD (%d)!\n", r);
 317                                 continue;
 318                         }
 319
 320                         fence_wait(fence, false);
 321                         fence_put(fence);
 322
 323                         adev->uvd.filp[i] = NULL;
 324                         atomic_set(&adev->uvd.handles[i], 0);
 325                 }
 326         }
 327 }
 328
 329 static void amdgpu_uvd_force_into_uvd_segment(struct amdgpu_bo *rbo)
 330 {
 331         int i;
 332         for (i = 0; i < rbo->placement.num_placement; ++i) {
 333                 rbo->placements[i].fpfn = 0 >> PAGE_SHIFT;
 334                 rbo->placements[i].lpfn = (256 * 1024 * 1024) >> PAGE_SHIFT;
 335         }
 336 }
 337
 338 /**
 339  * amdgpu_uvd_cs_pass1 - first parsing round
 340  *
 341  * @ctx: UVD parser context
 342  *
 343  * Make sure UVD message and feedback buffers are in VRAM and
 344  * nobody is violating an 256MB boundary.
 345  */
 346 static int amdgpu_uvd_cs_pass1(struct amdgpu_uvd_cs_ctx *ctx)
 347 {
 348         struct amdgpu_bo_va_mapping *mapping;
 349         struct amdgpu_bo *bo;
 350         uint32_t cmd, lo, hi;
 351         uint64_t addr;
 352         int r = 0;
 353
 354         lo = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->data0);
 355         hi = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->data1);
 356         addr = ((uint64_t)lo) | (((uint64_t)hi) << 32);
 357
 358         mapping = amdgpu_cs_find_mapping(ctx->parser, addr, &bo);
 359         if (mapping == NULL) {
 360                 DRM_ERROR("Can't find BO for addr 0x%08Lx\n", addr);
 361                 return -EINVAL;
 362         }
 363
 364         if (!ctx->parser->adev->uvd.address_64_bit) {
 365                 /* check if it's a message or feedback command */
 366                 cmd = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->idx) >> 1;
 367                 if (cmd == 0x0 || cmd == 0x3) {
 368                         /* yes, force it into VRAM */
 369                         uint32_t domain = AMDGPU_GEM_DOMAIN_VRAM;
 370                         amdgpu_ttm_placement_from_domain(bo, domain);
 371                 }
 372                 amdgpu_uvd_force_into_uvd_segment(bo);
 373
 374                 r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
 375         }
 376
 377         return r;
 378 }
 379
 380 /**
 381  * amdgpu_uvd_cs_msg_decode - handle UVD decode message
 382  *
 383  * @msg: pointer to message structure
 384  * @buf_sizes: returned buffer sizes
 385  *
 386  * Peek into the decode message and calculate the necessary buffer sizes.
 387  */
 388 static int amdgpu_uvd_cs_msg_decode(uint32_t *msg, unsigned buf_sizes[])
 389 {
 390         unsigned stream_type = msg[4];
 391         unsigned width = msg[6];
 392         unsigned height = msg[7];
 393         unsigned dpb_size = msg[9];
 394         unsigned pitch = msg[28];
 395         unsigned level = msg[57];
 396
 397         unsigned width_in_mb = width / 16;
 398         unsigned height_in_mb = ALIGN(height / 16, 2);
 399         unsigned fs_in_mb = width_in_mb * height_in_mb;
 400
 401         unsigned image_size, tmp, min_dpb_size, num_dpb_buffer;
 402         unsigned min_ctx_size = 0;
 403
 404         image_size = width * height;
 405         image_size += image_size / 2;
 406         image_size = ALIGN(image_size, 1024);
 407
 408         switch (stream_type) {
 409         case 0: /* H264 */
 410         case 7: /* H264 Perf */
 411                 switch(level) {
 412                 case 30:
 413                         num_dpb_buffer = 8100 / fs_in_mb;
 414                         break;
 415                 case 31:
 416                         num_dpb_buffer = 18000 / fs_in_mb;
 417                         break;
 418                 case 32:
 419                         num_dpb_buffer = 20480 / fs_in_mb;
 420                         break;
 421                 case 41:
 422                         num_dpb_buffer = 32768 / fs_in_mb;
 423                         break;
 424                 case 42:
 425                         num_dpb_buffer = 34816 / fs_in_mb;
 426                         break;
 427                 case 50:
 428                         num_dpb_buffer = 110400 / fs_in_mb;
 429                         break;
 430                 case 51:
 431                         num_dpb_buffer = 184320 / fs_in_mb;
 432                         break;
 433                 default:
 434                         num_dpb_buffer = 184320 / fs_in_mb;
 435                         break;
 436                 }
 437                 num_dpb_buffer++;
 438                 if (num_dpb_buffer > 17)
 439                         num_dpb_buffer = 17;
 440
 441                 /* reference picture buffer */
 442                 min_dpb_size = image_size * num_dpb_buffer;
 443
 444                 /* macroblock context buffer */
 445                 min_dpb_size += width_in_mb * height_in_mb * num_dpb_buffer * 192;
 446
 447                 /* IT surface buffer */
 448                 min_dpb_size += width_in_mb * height_in_mb * 32;
 449                 break;
 450
 451         case 1: /* VC1 */
 452
 453                 /* reference picture buffer */
 454                 min_dpb_size = image_size * 3;
 455
 456                 /* CONTEXT_BUFFER */
 457                 min_dpb_size += width_in_mb * height_in_mb * 128;
 458
 459                 /* IT surface buffer */
 460                 min_dpb_size += width_in_mb * 64;
 461
 462                 /* DB surface buffer */
 463                 min_dpb_size += width_in_mb * 128;
 464
 465                 /* BP */
 466                 tmp = max(width_in_mb, height_in_mb);
 467                 min_dpb_size += ALIGN(tmp * 7 * 16, 64);
 468                 break;
 469
 470         case 3: /* MPEG2 */
 471
 472                 /* reference picture buffer */
 473                 min_dpb_size = image_size * 3;
 474                 break;
 475
 476         case 4: /* MPEG4 */
 477
 478                 /* reference picture buffer */
 479                 min_dpb_size = image_size * 3;
 480
 481                 /* CM */
 482                 min_dpb_size += width_in_mb * height_in_mb * 64;
 483
 484                 /* IT surface buffer */
 485                 min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64);
 486                 break;
 487
 488         case 16: /* H265 */
 489                 image_size = (ALIGN(width, 16) * ALIGN(height, 16) * 3) / 2;
 490                 image_size = ALIGN(image_size, 256);
 491
 492                 num_dpb_buffer = (le32_to_cpu(msg[59]) & 0xff) + 2;
 493                 min_dpb_size = image_size * num_dpb_buffer;
 494                 min_ctx_size = ((width + 255) / 16) * ((height + 255) / 16)
 495                                            * 16 * num_dpb_buffer + 52 * 1024;
 496                 break;
 497
 498         default:
 499                 DRM_ERROR("UVD codec not handled %d!\n", stream_type);
 500                 return -EINVAL;
 501         }
 502
 503         if (width > pitch) {
 504                 DRM_ERROR("Invalid UVD decoding target pitch!\n");
 505                 return -EINVAL;
 506         }
 507
 508         if (dpb_size < min_dpb_size) {
 509                 DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n",
 510                           dpb_size, min_dpb_size);
 511                 return -EINVAL;
 512         }
 513
 514         buf_sizes[0x1] = dpb_size;
 515         buf_sizes[0x2] = image_size;
 516         buf_sizes[0x4] = min_ctx_size;
 517         return 0;
 518 }
 519
 520 /**
 521  * amdgpu_uvd_cs_msg - handle UVD message
 522  *
 523  * @ctx: UVD parser context
 524  * @bo: buffer object containing the message
 525  * @offset: offset into the buffer object
 526  *
 527  * Peek into the UVD message and extract the session id.
 528  * Make sure that we don't open up to many sessions.
 529  */
 530 static int amdgpu_uvd_cs_msg(struct amdgpu_uvd_cs_ctx *ctx,
 531                              struct amdgpu_bo *bo, unsigned offset)
 532 {
 533         struct amdgpu_device *adev = ctx->parser->adev;
 534         int32_t *msg, msg_type, handle;
 535         void *ptr;
 536         long r;
 537         int i;
 538
 539         if (offset & 0x3F) {
 540                 DRM_ERROR("UVD messages must be 64 byte aligned!\n");
 541                 return -EINVAL;
 542         }
 543
 544         r = amdgpu_bo_kmap(bo, &ptr);
 545         if (r) {
 546                 DRM_ERROR("Failed mapping the UVD message (%ld)!\n", r);
 547                 return r;
 548         }
 549
 550         msg = ptr + offset;
 551
 552         msg_type = msg[1];
 553         handle = msg[2];
 554
 555         if (handle == 0) {
 556                 DRM_ERROR("Invalid UVD handle!\n");
 557                 return -EINVAL;
 558         }
 559
 560         switch (msg_type) {
 561         case 0:
 562                 /* it's a create msg, calc image size (width * height) */
 563                 amdgpu_bo_kunmap(bo);
 564
 565                 /* try to alloc a new handle */
 566                 for (i = 0; i < AMDGPU_MAX_UVD_HANDLES; ++i) {
 567                         if (atomic_read(&adev->uvd.handles[i]) == handle) {
 568                                 DRM_ERROR("Handle 0x%x already in use!\n", handle);
 569                                 return -EINVAL;
 570                         }
 571
 572                         if (!atomic_cmpxchg(&adev->uvd.handles[i], 0, handle)) {
 573                                 adev->uvd.filp[i] = ctx->parser->filp;
 574                                 return 0;
 575                         }
 576                 }
 577
 578                 DRM_ERROR("No more free UVD handles!\n");
 579                 return -EINVAL;
 580
 581         case 1:
 582                 /* it's a decode msg, calc buffer sizes */
 583                 r = amdgpu_uvd_cs_msg_decode(msg, ctx->buf_sizes);
 584                 amdgpu_bo_kunmap(bo);
 585                 if (r)
 586                         return r;
 587
 588                 /* validate the handle */
 589                 for (i = 0; i < AMDGPU_MAX_UVD_HANDLES; ++i) {
 590                         if (atomic_read(&adev->uvd.handles[i]) == handle) {
 591                                 if (adev->uvd.filp[i] != ctx->parser->filp) {
 592                                         DRM_ERROR("UVD handle collision detected!\n");
 593                                         return -EINVAL;
 594                                 }
 595                                 return 0;
 596                         }
 597                 }
 598
 599                 DRM_ERROR("Invalid UVD handle 0x%x!\n", handle);
 600                 return -ENOENT;
 601
 602         case 2:
 603                 /* it's a destroy msg, free the handle */
 604                 for (i = 0; i < AMDGPU_MAX_UVD_HANDLES; ++i)
 605                         atomic_cmpxchg(&adev->uvd.handles[i], handle, 0);
 606                 amdgpu_bo_kunmap(bo);
 607                 return 0;
 608
 609         default:
 610                 DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
 611                 return -EINVAL;
 612         }
 613         BUG();
 614         return -EINVAL;
 615 }
 616
 617 /**
 618  * amdgpu_uvd_cs_pass2 - second parsing round
 619  *
 620  * @ctx: UVD parser context
 621  *
 622  * Patch buffer addresses, make sure buffer sizes are correct.
 623  */
 624 static int amdgpu_uvd_cs_pass2(struct amdgpu_uvd_cs_ctx *ctx)
 625 {
 626         struct amdgpu_bo_va_mapping *mapping;
 627         struct amdgpu_bo *bo;
 628         uint32_t cmd, lo, hi;
 629         uint64_t start, end;
 630         uint64_t addr;
 631         int r;
 632
 633         lo = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->data0);
 634         hi = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->data1);
 635         addr = ((uint64_t)lo) | (((uint64_t)hi) << 32);
 636
 637         mapping = amdgpu_cs_find_mapping(ctx->parser, addr, &bo);
 638         if (mapping == NULL)
 639                 return -EINVAL;
 640
 641         start = amdgpu_bo_gpu_offset(bo);
 642
 643         end = (mapping->it.last + 1 - mapping->it.start);
 644         end = end * AMDGPU_GPU_PAGE_SIZE + start;
 645
 646         addr -= ((uint64_t)mapping->it.start) * AMDGPU_GPU_PAGE_SIZE;
 647         start += addr;
 648
 649         amdgpu_set_ib_value(ctx->parser, ctx->ib_idx, ctx->data0,
 650                             lower_32_bits(start));
 651         amdgpu_set_ib_value(ctx->parser, ctx->ib_idx, ctx->data1,
 652                             upper_32_bits(start));
 653
 654         cmd = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->idx) >> 1;
 655         if (cmd < 0x4) {
 656                 if ((end - start) < ctx->buf_sizes[cmd]) {
 657                         DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
 658                                   (unsigned)(end - start),
 659                                   ctx->buf_sizes[cmd]);
 660                         return -EINVAL;
 661                 }
 662
 663         } else if (cmd == 0x206) {
 664                 if ((end - start) < ctx->buf_sizes[4]) {
 665                         DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
 666                                           (unsigned)(end - start),
 667                                           ctx->buf_sizes[4]);
 668                         return -EINVAL;
 669                 }
 670         } else if ((cmd != 0x100) && (cmd != 0x204)) {
 671                 DRM_ERROR("invalid UVD command %X!\n", cmd);
 672                 return -EINVAL;
 673         }
 674
 675         if (!ctx->parser->adev->uvd.address_64_bit) {
 676                 if ((start >> 28) != ((end - 1) >> 28)) {
 677                         DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
 678                                   start, end);
 679                         return -EINVAL;
 680                 }
 681
 682                 if ((cmd == 0 || cmd == 0x3) &&
 683                     (start >> 28) != (ctx->parser->adev->uvd.gpu_addr >> 28)) {
 684                         DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n",
 685                                   start, end);
 686                         return -EINVAL;
 687                 }
 688         }
 689
 690         if (cmd == 0) {
 691                 ctx->has_msg_cmd = true;
 692                 r = amdgpu_uvd_cs_msg(ctx, bo, addr);
 693                 if (r)
 694                         return r;
 695         } else if (!ctx->has_msg_cmd) {
 696                 DRM_ERROR("Message needed before other commands are send!\n");
 697                 return -EINVAL;
 698         }
 699
 700         return 0;
 701 }
 702
 703 /**
 704  * amdgpu_uvd_cs_reg - parse register writes
 705  *
 706  * @ctx: UVD parser context
 707  * @cb: callback function
 708  *
 709  * Parse the register writes, call cb on each complete command.
 710  */
 711 static int amdgpu_uvd_cs_reg(struct amdgpu_uvd_cs_ctx *ctx,
 712                              int (*cb)(struct amdgpu_uvd_cs_ctx *ctx))
 713 {
 714         struct amdgpu_ib *ib = &ctx->parser->job->ibs[ctx->ib_idx];
 715         int i, r;
 716
 717         ctx->idx++;
 718         for (i = 0; i <= ctx->count; ++i) {
 719                 unsigned reg = ctx->reg + i;
 720
 721                 if (ctx->idx >= ib->length_dw) {
 722                         DRM_ERROR("Register command after end of CS!\n");
 723                         return -EINVAL;
 724                 }
 725
 726                 switch (reg) {
 727                 case mmUVD_GPCOM_VCPU_DATA0:
 728                         ctx->data0 = ctx->idx;
 729                         break;
 730                 case mmUVD_GPCOM_VCPU_DATA1:
 731                         ctx->data1 = ctx->idx;
 732                         break;
 733                 case mmUVD_GPCOM_VCPU_CMD:
 734                         r = cb(ctx);
 735                         if (r)
 736                                 return r;
 737                         break;
 738                 case mmUVD_ENGINE_CNTL:
 739                         break;
 740                 default:
 741                         DRM_ERROR("Invalid reg 0x%X!\n", reg);
 742                         return -EINVAL;
 743                 }
 744                 ctx->idx++;
 745         }
 746         return 0;
 747 }
 748
 749 /**
 750  * amdgpu_uvd_cs_packets - parse UVD packets
 751  *
 752  * @ctx: UVD parser context
 753  * @cb: callback function
 754  *
 755  * Parse the command stream packets.
 756  */
 757 static int amdgpu_uvd_cs_packets(struct amdgpu_uvd_cs_ctx *ctx,
 758                                  int (*cb)(struct amdgpu_uvd_cs_ctx *ctx))
 759 {
 760         struct amdgpu_ib *ib = &ctx->parser->job->ibs[ctx->ib_idx];
 761         int r;
 762
 763         for (ctx->idx = 0 ; ctx->idx < ib->length_dw; ) {
 764                 uint32_t cmd = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->idx);
 765                 unsigned type = CP_PACKET_GET_TYPE(cmd);
 766                 switch (type) {
 767                 case PACKET_TYPE0:
 768                         ctx->reg = CP_PACKET0_GET_REG(cmd);
 769                         ctx->count = CP_PACKET_GET_COUNT(cmd);
 770                         r = amdgpu_uvd_cs_reg(ctx, cb);
 771                         if (r)
 772                                 return r;
 773                         break;
 774                 case PACKET_TYPE2:
 775                         ++ctx->idx;
 776                         break;
 777                 default:
 778                         DRM_ERROR("Unknown packet type %d !\n", type);
 779                         return -EINVAL;
 780                 }
 781         }
 782         return 0;
 783 }
 784
 785 /**
 786  * amdgpu_uvd_ring_parse_cs - UVD command submission parser
 787  *
 788  * @parser: Command submission parser context
 789  *
 790  * Parse the command stream, patch in addresses as necessary.
 791  */
 792 int amdgpu_uvd_ring_parse_cs(struct amdgpu_cs_parser *parser, uint32_t ib_idx)
 793 {
 794         struct amdgpu_uvd_cs_ctx ctx = {};
 795         unsigned buf_sizes[] = {
 796                 [0x00000000]    =       2048,
 797                 [0x00000001]    =       0xFFFFFFFF,
 798                 [0x00000002]    =       0xFFFFFFFF,
 799                 [0x00000003]    =       2048,
 800                 [0x00000004]    =       0xFFFFFFFF,
 801         };
 802         struct amdgpu_ib *ib = &parser->job->ibs[ib_idx];
 803         int r;
 804
 805         if (ib->length_dw % 16) {
 806                 DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n",
 807                           ib->length_dw);
 808                 return -EINVAL;
 809         }
 810
 811         ctx.parser = parser;
 812         ctx.buf_sizes = buf_sizes;
 813         ctx.ib_idx = ib_idx;
 814
 815         /* first round, make sure the buffers are actually in the UVD segment */
 816         r = amdgpu_uvd_cs_packets(&ctx, amdgpu_uvd_cs_pass1);
 817         if (r)
 818                 return r;
 819
 820         /* second round, patch buffer addresses into the command stream */
 821         r = amdgpu_uvd_cs_packets(&ctx, amdgpu_uvd_cs_pass2);
 822         if (r)
 823                 return r;
 824
 825         if (!ctx.has_msg_cmd) {
 826                 DRM_ERROR("UVD-IBs need a msg command!\n");
 827                 return -EINVAL;
 828         }
 829
 830         amdgpu_uvd_note_usage(ctx.parser->adev);
 831
 832         return 0;
 833 }
 834
 835 static int amdgpu_uvd_send_msg(struct amdgpu_ring *ring, struct amdgpu_bo *bo,
 836                                bool direct, struct fence **fence)
 837 {
 838         struct ttm_validate_buffer tv;
 839         struct ww_acquire_ctx ticket;
 840         struct list_head head;
 841         struct amdgpu_job *job;
 842         struct amdgpu_ib *ib;
 843         struct fence *f = NULL;
 844         struct amdgpu_device *adev = ring->adev;
 845         uint64_t addr;
 846         int i, r;
 847
 848         memset(&tv, 0, sizeof(tv));
 849         tv.bo = &bo->tbo;
 850
 851         INIT_LIST_HEAD(&head);
 852         list_add(&tv.head, &head);
 853
 854         r = ttm_eu_reserve_buffers(&ticket, &head, true, NULL);
 855         if (r)
 856                 return r;
 857
 858         if (!bo->adev->uvd.address_64_bit) {
 859                 amdgpu_ttm_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_VRAM);
 860                 amdgpu_uvd_force_into_uvd_segment(bo);
 861         }
 862
 863         r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
 864         if (r)
 865                 goto err;
 866
 867         r = amdgpu_job_alloc_with_ib(adev, 64, &job);
 868         if (r)
 869                 goto err;
 870
 871         ib = &job->ibs[0];
 872         addr = amdgpu_bo_gpu_offset(bo);
 873         ib->ptr[0] = PACKET0(mmUVD_GPCOM_VCPU_DATA0, 0);
 874         ib->ptr[1] = addr;
 875         ib->ptr[2] = PACKET0(mmUVD_GPCOM_VCPU_DATA1, 0);
 876         ib->ptr[3] = addr >> 32;
 877         ib->ptr[4] = PACKET0(mmUVD_GPCOM_VCPU_CMD, 0);
 878         ib->ptr[5] = 0;
 879         for (i = 6; i < 16; ++i)
 880                 ib->ptr[i] = PACKET2(0);
 881         ib->length_dw = 16;
 882
 883         if (direct) {
 884                 r = amdgpu_ib_schedule(ring, 1, ib, NULL, &f);
 885                 job->fence = f;
 886                 if (r)
 887                         goto err_free;
 888
 889                 amdgpu_job_free(job);
 890         } else {
 891                 r = amdgpu_job_submit(job, ring, &adev->uvd.entity,
 892                                       AMDGPU_FENCE_OWNER_UNDEFINED, &f);
 893                 if (r)
 894                         goto err_free;
 895         }
 896
 897         ttm_eu_fence_buffer_objects(&ticket, &head, f);
 898
 899         if (fence)
 900                 *fence = fence_get(f);
 901         amdgpu_bo_unref(&bo);
 902         fence_put(f);
 903
 904         return 0;
 905
 906 err_free:
 907         amdgpu_job_free(job);
 908
 909 err:
 910         ttm_eu_backoff_reservation(&ticket, &head);
 911         return r;
 912 }
 913
 914 /* multiple fence commands without any stream commands in between can
 915    crash the vcpu so just try to emmit a dummy create/destroy msg to
 916    avoid this */
 917 int amdgpu_uvd_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
 918                               struct fence **fence)
 919 {
 920         struct amdgpu_device *adev = ring->adev;
 921         struct amdgpu_bo *bo;
 922         uint32_t *msg;
 923         int r, i;
 924
 925         r = amdgpu_bo_create(adev, 1024, PAGE_SIZE, true,
 926                              AMDGPU_GEM_DOMAIN_VRAM,
 927                              AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
 928                              NULL, NULL, &bo);
 929         if (r)
 930                 return r;
 931
 932         r = amdgpu_bo_reserve(bo, false);
 933         if (r) {
 934                 amdgpu_bo_unref(&bo);
 935                 return r;
 936         }
 937
 938         r = amdgpu_bo_kmap(bo, (void **)&msg);
 939         if (r) {
 940                 amdgpu_bo_unreserve(bo);
 941                 amdgpu_bo_unref(&bo);
 942                 return r;
 943         }
 944
 945         /* stitch together an UVD create msg */
 946         msg[0] = cpu_to_le32(0x00000de4);
 947         msg[1] = cpu_to_le32(0x00000000);
 948         msg[2] = cpu_to_le32(handle);
 949         msg[3] = cpu_to_le32(0x00000000);
 950         msg[4] = cpu_to_le32(0x00000000);
 951         msg[5] = cpu_to_le32(0x00000000);
 952         msg[6] = cpu_to_le32(0x00000000);
 953         msg[7] = cpu_to_le32(0x00000780);
 954         msg[8] = cpu_to_le32(0x00000440);
 955         msg[9] = cpu_to_le32(0x00000000);
 956         msg[10] = cpu_to_le32(0x01b37000);
 957         for (i = 11; i < 1024; ++i)
 958                 msg[i] = cpu_to_le32(0x0);
 959
 960         amdgpu_bo_kunmap(bo);
 961         amdgpu_bo_unreserve(bo);
 962
 963         return amdgpu_uvd_send_msg(ring, bo, true, fence);
 964 }
 965
 966 int amdgpu_uvd_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
 967                                bool direct, struct fence **fence)
 968 {
 969         struct amdgpu_device *adev = ring->adev;
 970         struct amdgpu_bo *bo;
 971         uint32_t *msg;
 972         int r, i;
 973
 974         r = amdgpu_bo_create(adev, 1024, PAGE_SIZE, true,
 975                              AMDGPU_GEM_DOMAIN_VRAM,
 976                              AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
 977                              NULL, NULL, &bo);
 978         if (r)
 979                 return r;
 980
 981         r = amdgpu_bo_reserve(bo, false);
 982         if (r) {
 983                 amdgpu_bo_unref(&bo);
 984                 return r;
 985         }
 986
 987         r = amdgpu_bo_kmap(bo, (void **)&msg);
 988         if (r) {
 989                 amdgpu_bo_unreserve(bo);
 990                 amdgpu_bo_unref(&bo);
 991                 return r;
 992         }
 993
 994         /* stitch together an UVD destroy msg */
 995         msg[0] = cpu_to_le32(0x00000de4);
 996         msg[1] = cpu_to_le32(0x00000002);
 997         msg[2] = cpu_to_le32(handle);
 998         msg[3] = cpu_to_le32(0x00000000);
 999         for (i = 4; i < 1024; ++i)
1000                 msg[i] = cpu_to_le32(0x0);
1001
1002         amdgpu_bo_kunmap(bo);
1003         amdgpu_bo_unreserve(bo);
1004
1005         return amdgpu_uvd_send_msg(ring, bo, direct, fence);
1006 }
1007
1008 static void amdgpu_uvd_idle_work_handler(struct work_struct *work)
1009 {
1010         struct amdgpu_device *adev =
1011                 container_of(work, struct amdgpu_device, uvd.idle_work.work);
1012         unsigned i, fences, handles = 0;
1013
1014         fences = amdgpu_fence_count_emitted(&adev->uvd.ring);
1015
1016         for (i = 0; i < AMDGPU_MAX_UVD_HANDLES; ++i)
1017                 if (atomic_read(&adev->uvd.handles[i]))
1018                         ++handles;
1019
1020         if (fences == 0 && handles == 0) {
1021                 if (adev->pm.dpm_enabled) {
1022                         amdgpu_dpm_enable_uvd(adev, false);
1023                 } else {
1024                         amdgpu_asic_set_uvd_clocks(adev, 0, 0);
1025                 }
1026         } else {
1027                 schedule_delayed_work(&adev->uvd.idle_work,
1028                                       msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
1029         }
1030 }
1031
1032 static void amdgpu_uvd_note_usage(struct amdgpu_device *adev)
1033 {
1034         bool set_clocks = !cancel_delayed_work_sync(&adev->uvd.idle_work);
1035         set_clocks &= schedule_delayed_work(&adev->uvd.idle_work,
1036                                             msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
1037
1038         if (set_clocks) {
1039                 if (adev->pm.dpm_enabled) {
1040                         amdgpu_dpm_enable_uvd(adev, true);
1041                 } else {
1042                         amdgpu_asic_set_uvd_clocks(adev, 53300, 40000);
1043                 }
1044         }
1045 }