drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c

   1 /*
   2  * Copyright 2013 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  * Authors: Christian König <[email protected]>
  26  */
  27
  28 #include <linux/firmware.h>
  29 #include <linux/module.h>
  30 #include <drm/drmP.h>
  31 #include <drm/drm.h>
  32
  33 #include "amdgpu.h"
  34 #include "amdgpu_pm.h"
  35 #include "amdgpu_vce.h"
  36 #include "cikd.h"
  37
  38 /* 1 second timeout */
  39 #define VCE_IDLE_TIMEOUT        msecs_to_jiffies(1000)
  40
  41 /* Firmware Names */
  42 #ifdef CONFIG_DRM_AMDGPU_CIK
  43 #define FIRMWARE_BONAIRE        "radeon/bonaire_vce.bin"
  44 #define FIRMWARE_KABINI "radeon/kabini_vce.bin"
  45 #define FIRMWARE_KAVERI "radeon/kaveri_vce.bin"
  46 #define FIRMWARE_HAWAII "radeon/hawaii_vce.bin"
  47 #define FIRMWARE_MULLINS        "radeon/mullins_vce.bin"
  48 #endif
  49 #define FIRMWARE_TONGA          "amdgpu/tonga_vce.bin"
  50 #define FIRMWARE_CARRIZO        "amdgpu/carrizo_vce.bin"
  51 #define FIRMWARE_FIJI           "amdgpu/fiji_vce.bin"
  52 #define FIRMWARE_STONEY         "amdgpu/stoney_vce.bin"
  53 #define FIRMWARE_POLARIS10      "amdgpu/polaris10_vce.bin"
  54 #define FIRMWARE_POLARIS11         "amdgpu/polaris11_vce.bin"
  55
  56 #ifdef CONFIG_DRM_AMDGPU_CIK
  57 MODULE_FIRMWARE(FIRMWARE_BONAIRE);
  58 MODULE_FIRMWARE(FIRMWARE_KABINI);
  59 MODULE_FIRMWARE(FIRMWARE_KAVERI);
  60 MODULE_FIRMWARE(FIRMWARE_HAWAII);
  61 MODULE_FIRMWARE(FIRMWARE_MULLINS);
  62 #endif
  63 MODULE_FIRMWARE(FIRMWARE_TONGA);
  64 MODULE_FIRMWARE(FIRMWARE_CARRIZO);
  65 MODULE_FIRMWARE(FIRMWARE_FIJI);
  66 MODULE_FIRMWARE(FIRMWARE_STONEY);
  67 MODULE_FIRMWARE(FIRMWARE_POLARIS10);
  68 MODULE_FIRMWARE(FIRMWARE_POLARIS11);
  69
  70 static void amdgpu_vce_idle_work_handler(struct work_struct *work);
  71
  72 /**
  73  * amdgpu_vce_init - allocate memory, load vce firmware
  74  *
  75  * @adev: amdgpu_device pointer
  76  *
  77  * First step to get VCE online, allocate memory and load the firmware
  78  */
  79 int amdgpu_vce_sw_init(struct amdgpu_device *adev, unsigned long size)
  80 {
  81         struct amdgpu_ring *ring;
  82         struct amd_sched_rq *rq;
  83         const char *fw_name;
  84         const struct common_firmware_header *hdr;
  85         unsigned ucode_version, version_major, version_minor, binary_id;
  86         int i, r;
  87
  88         switch (adev->asic_type) {
  89 #ifdef CONFIG_DRM_AMDGPU_CIK
  90         case CHIP_BONAIRE:
  91                 fw_name = FIRMWARE_BONAIRE;
  92                 break;
  93         case CHIP_KAVERI:
  94                 fw_name = FIRMWARE_KAVERI;
  95                 break;
  96         case CHIP_KABINI:
  97                 fw_name = FIRMWARE_KABINI;
  98                 break;
  99         case CHIP_HAWAII:
 100                 fw_name = FIRMWARE_HAWAII;
 101                 break;
 102         case CHIP_MULLINS:
 103                 fw_name = FIRMWARE_MULLINS;
 104                 break;
 105 #endif
 106         case CHIP_TONGA:
 107                 fw_name = FIRMWARE_TONGA;
 108                 break;
 109         case CHIP_CARRIZO:
 110                 fw_name = FIRMWARE_CARRIZO;
 111                 break;
 112         case CHIP_FIJI:
 113                 fw_name = FIRMWARE_FIJI;
 114                 break;
 115         case CHIP_STONEY:
 116                 fw_name = FIRMWARE_STONEY;
 117                 break;
 118         case CHIP_POLARIS10:
 119                 fw_name = FIRMWARE_POLARIS10;
 120                 break;
 121         case CHIP_POLARIS11:
 122                 fw_name = FIRMWARE_POLARIS11;
 123                 break;
 124
 125         default:
 126                 return -EINVAL;
 127         }
 128
 129         r = request_firmware(&adev->vce.fw, fw_name, adev->dev);
 130         if (r) {
 131                 dev_err(adev->dev, "amdgpu_vce: Can't load firmware \"%s\"\n",
 132                         fw_name);
 133                 return r;
 134         }
 135
 136         r = amdgpu_ucode_validate(adev->vce.fw);
 137         if (r) {
 138                 dev_err(adev->dev, "amdgpu_vce: Can't validate firmware \"%s\"\n",
 139                         fw_name);
 140                 release_firmware(adev->vce.fw);
 141                 adev->vce.fw = NULL;
 142                 return r;
 143         }
 144
 145         hdr = (const struct common_firmware_header *)adev->vce.fw->data;
 146
 147         ucode_version = le32_to_cpu(hdr->ucode_version);
 148         version_major = (ucode_version >> 20) & 0xfff;
 149         version_minor = (ucode_version >> 8) & 0xfff;
 150         binary_id = ucode_version & 0xff;
 151         DRM_INFO("Found VCE firmware Version: %hhd.%hhd Binary ID: %hhd\n",
 152                 version_major, version_minor, binary_id);
 153         adev->vce.fw_version = ((version_major << 24) | (version_minor << 16) |
 154                                 (binary_id << 8));
 155
 156         /* allocate firmware, stack and heap BO */
 157
 158         r = amdgpu_bo_create(adev, size, PAGE_SIZE, true,
 159                              AMDGPU_GEM_DOMAIN_VRAM,
 160                              AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
 161                              NULL, NULL, &adev->vce.vcpu_bo);
 162         if (r) {
 163                 dev_err(adev->dev, "(%d) failed to allocate VCE bo\n", r);
 164                 return r;
 165         }
 166
 167         r = amdgpu_bo_reserve(adev->vce.vcpu_bo, false);
 168         if (r) {
 169                 amdgpu_bo_unref(&adev->vce.vcpu_bo);
 170                 dev_err(adev->dev, "(%d) failed to reserve VCE bo\n", r);
 171                 return r;
 172         }
 173
 174         r = amdgpu_bo_pin(adev->vce.vcpu_bo, AMDGPU_GEM_DOMAIN_VRAM,
 175                           &adev->vce.gpu_addr);
 176         amdgpu_bo_unreserve(adev->vce.vcpu_bo);
 177         if (r) {
 178                 amdgpu_bo_unref(&adev->vce.vcpu_bo);
 179                 dev_err(adev->dev, "(%d) VCE bo pin failed\n", r);
 180                 return r;
 181         }
 182
 183
 184         ring = &adev->vce.ring[0];
 185         rq = &ring->sched.sched_rq[AMD_SCHED_PRIORITY_NORMAL];
 186         r = amd_sched_entity_init(&ring->sched, &adev->vce.entity,
 187                                   rq, amdgpu_sched_jobs);
 188         if (r != 0) {
 189                 DRM_ERROR("Failed setting up VCE run queue.\n");
 190                 return r;
 191         }
 192
 193         for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
 194                 atomic_set(&adev->vce.handles[i], 0);
 195                 adev->vce.filp[i] = NULL;
 196         }
 197
 198         INIT_DELAYED_WORK(&adev->vce.idle_work, amdgpu_vce_idle_work_handler);
 199         mutex_init(&adev->vce.idle_mutex);
 200
 201         return 0;
 202 }
 203
 204 /**
 205  * amdgpu_vce_fini - free memory
 206  *
 207  * @adev: amdgpu_device pointer
 208  *
 209  * Last step on VCE teardown, free firmware memory
 210  */
 211 int amdgpu_vce_sw_fini(struct amdgpu_device *adev)
 212 {
 213         if (adev->vce.vcpu_bo == NULL)
 214                 return 0;
 215
 216         amd_sched_entity_fini(&adev->vce.ring[0].sched, &adev->vce.entity);
 217
 218         amdgpu_bo_unref(&adev->vce.vcpu_bo);
 219
 220         amdgpu_ring_fini(&adev->vce.ring[0]);
 221         amdgpu_ring_fini(&adev->vce.ring[1]);
 222
 223         release_firmware(adev->vce.fw);
 224         mutex_destroy(&adev->vce.idle_mutex);
 225
 226         return 0;
 227 }
 228
 229 /**
 230  * amdgpu_vce_suspend - unpin VCE fw memory
 231  *
 232  * @adev: amdgpu_device pointer
 233  *
 234  */
 235 int amdgpu_vce_suspend(struct amdgpu_device *adev)
 236 {
 237         int i;
 238
 239         if (adev->vce.vcpu_bo == NULL)
 240                 return 0;
 241
 242         for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i)
 243                 if (atomic_read(&adev->vce.handles[i]))
 244                         break;
 245
 246         if (i == AMDGPU_MAX_VCE_HANDLES)
 247                 return 0;
 248
 249         cancel_delayed_work_sync(&adev->vce.idle_work);
 250         /* TODO: suspending running encoding sessions isn't supported */
 251         return -EINVAL;
 252 }
 253
 254 /**
 255  * amdgpu_vce_resume - pin VCE fw memory
 256  *
 257  * @adev: amdgpu_device pointer
 258  *
 259  */
 260 int amdgpu_vce_resume(struct amdgpu_device *adev)
 261 {
 262         void *cpu_addr;
 263         const struct common_firmware_header *hdr;
 264         unsigned offset;
 265         int r;
 266
 267         if (adev->vce.vcpu_bo == NULL)
 268                 return -EINVAL;
 269
 270         r = amdgpu_bo_reserve(adev->vce.vcpu_bo, false);
 271         if (r) {
 272                 dev_err(adev->dev, "(%d) failed to reserve VCE bo\n", r);
 273                 return r;
 274         }
 275
 276         r = amdgpu_bo_kmap(adev->vce.vcpu_bo, &cpu_addr);
 277         if (r) {
 278                 amdgpu_bo_unreserve(adev->vce.vcpu_bo);
 279                 dev_err(adev->dev, "(%d) VCE map failed\n", r);
 280                 return r;
 281         }
 282
 283         hdr = (const struct common_firmware_header *)adev->vce.fw->data;
 284         offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
 285         memcpy(cpu_addr, (adev->vce.fw->data) + offset,
 286                 (adev->vce.fw->size) - offset);
 287
 288         amdgpu_bo_kunmap(adev->vce.vcpu_bo);
 289
 290         amdgpu_bo_unreserve(adev->vce.vcpu_bo);
 291
 292         return 0;
 293 }
 294
 295 /**
 296  * amdgpu_vce_idle_work_handler - power off VCE
 297  *
 298  * @work: pointer to work structure
 299  *
 300  * power of VCE when it's not used any more
 301  */
 302 static void amdgpu_vce_idle_work_handler(struct work_struct *work)
 303 {
 304         struct amdgpu_device *adev =
 305                 container_of(work, struct amdgpu_device, vce.idle_work.work);
 306
 307         if ((amdgpu_fence_count_emitted(&adev->vce.ring[0]) == 0) &&
 308             (amdgpu_fence_count_emitted(&adev->vce.ring[1]) == 0)) {
 309                 if (adev->pm.dpm_enabled) {
 310                         amdgpu_dpm_enable_vce(adev, false);
 311                 } else {
 312                         amdgpu_asic_set_vce_clocks(adev, 0, 0);
 313                 }
 314         } else {
 315                 schedule_delayed_work(&adev->vce.idle_work, VCE_IDLE_TIMEOUT);
 316         }
 317 }
 318
 319 /**
 320  * amdgpu_vce_ring_begin_use - power up VCE
 321  *
 322  * @ring: amdgpu ring
 323  *
 324  * Make sure VCE is powerd up when we want to use it
 325  */
 326 void amdgpu_vce_ring_begin_use(struct amdgpu_ring *ring)
 327 {
 328         struct amdgpu_device *adev = ring->adev;
 329         bool set_clocks;
 330
 331         mutex_lock(&adev->vce.idle_mutex);
 332         set_clocks = !cancel_delayed_work_sync(&adev->vce.idle_work);
 333         if (set_clocks) {
 334                 if (adev->pm.dpm_enabled) {
 335                         amdgpu_dpm_enable_vce(adev, true);
 336                 } else {
 337                         amdgpu_asic_set_vce_clocks(adev, 53300, 40000);
 338                 }
 339         }
 340         mutex_unlock(&adev->vce.idle_mutex);
 341 }
 342
 343 /**
 344  * amdgpu_vce_ring_end_use - power VCE down
 345  *
 346  * @ring: amdgpu ring
 347  *
 348  * Schedule work to power VCE down again
 349  */
 350 void amdgpu_vce_ring_end_use(struct amdgpu_ring *ring)
 351 {
 352         schedule_delayed_work(&ring->adev->vce.idle_work, VCE_IDLE_TIMEOUT);
 353 }
 354
 355 /**
 356  * amdgpu_vce_free_handles - free still open VCE handles
 357  *
 358  * @adev: amdgpu_device pointer
 359  * @filp: drm file pointer
 360  *
 361  * Close all VCE handles still open by this file pointer
 362  */
 363 void amdgpu_vce_free_handles(struct amdgpu_device *adev, struct drm_file *filp)
 364 {
 365         struct amdgpu_ring *ring = &adev->vce.ring[0];
 366         int i, r;
 367         for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
 368                 uint32_t handle = atomic_read(&adev->vce.handles[i]);
 369
 370                 if (!handle || adev->vce.filp[i] != filp)
 371                         continue;
 372
 373                 r = amdgpu_vce_get_destroy_msg(ring, handle, false, NULL);
 374                 if (r)
 375                         DRM_ERROR("Error destroying VCE handle (%d)!\n", r);
 376
 377                 adev->vce.filp[i] = NULL;
 378                 atomic_set(&adev->vce.handles[i], 0);
 379         }
 380 }
 381
 382 /**
 383  * amdgpu_vce_get_create_msg - generate a VCE create msg
 384  *
 385  * @adev: amdgpu_device pointer
 386  * @ring: ring we should submit the msg to
 387  * @handle: VCE session handle to use
 388  * @fence: optional fence to return
 389  *
 390  * Open up a stream for HW test
 391  */
 392 int amdgpu_vce_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
 393                               struct fence **fence)
 394 {
 395         const unsigned ib_size_dw = 1024;
 396         struct amdgpu_job *job;
 397         struct amdgpu_ib *ib;
 398         struct fence *f = NULL;
 399         uint64_t dummy;
 400         int i, r;
 401
 402         r = amdgpu_job_alloc_with_ib(ring->adev, ib_size_dw * 4, &job);
 403         if (r)
 404                 return r;
 405
 406         ib = &job->ibs[0];
 407
 408         dummy = ib->gpu_addr + 1024;
 409
 410         /* stitch together an VCE create msg */
 411         ib->length_dw = 0;
 412         ib->ptr[ib->length_dw++] = 0x0000000c; /* len */
 413         ib->ptr[ib->length_dw++] = 0x00000001; /* session cmd */
 414         ib->ptr[ib->length_dw++] = handle;
 415
 416         if ((ring->adev->vce.fw_version >> 24) >= 52)
 417                 ib->ptr[ib->length_dw++] = 0x00000040; /* len */
 418         else
 419                 ib->ptr[ib->length_dw++] = 0x00000030; /* len */
 420         ib->ptr[ib->length_dw++] = 0x01000001; /* create cmd */
 421         ib->ptr[ib->length_dw++] = 0x00000000;
 422         ib->ptr[ib->length_dw++] = 0x00000042;
 423         ib->ptr[ib->length_dw++] = 0x0000000a;
 424         ib->ptr[ib->length_dw++] = 0x00000001;
 425         ib->ptr[ib->length_dw++] = 0x00000080;
 426         ib->ptr[ib->length_dw++] = 0x00000060;
 427         ib->ptr[ib->length_dw++] = 0x00000100;
 428         ib->ptr[ib->length_dw++] = 0x00000100;
 429         ib->ptr[ib->length_dw++] = 0x0000000c;
 430         ib->ptr[ib->length_dw++] = 0x00000000;
 431         if ((ring->adev->vce.fw_version >> 24) >= 52) {
 432                 ib->ptr[ib->length_dw++] = 0x00000000;
 433                 ib->ptr[ib->length_dw++] = 0x00000000;
 434                 ib->ptr[ib->length_dw++] = 0x00000000;
 435                 ib->ptr[ib->length_dw++] = 0x00000000;
 436         }
 437
 438         ib->ptr[ib->length_dw++] = 0x00000014; /* len */
 439         ib->ptr[ib->length_dw++] = 0x05000005; /* feedback buffer */
 440         ib->ptr[ib->length_dw++] = upper_32_bits(dummy);
 441         ib->ptr[ib->length_dw++] = dummy;
 442         ib->ptr[ib->length_dw++] = 0x00000001;
 443
 444         for (i = ib->length_dw; i < ib_size_dw; ++i)
 445                 ib->ptr[i] = 0x0;
 446
 447         r = amdgpu_ib_schedule(ring, 1, ib, NULL, NULL, &f);
 448         job->fence = fence_get(f);
 449         if (r)
 450                 goto err;
 451
 452         amdgpu_job_free(job);
 453         if (fence)
 454                 *fence = fence_get(f);
 455         fence_put(f);
 456         return 0;
 457
 458 err:
 459         amdgpu_job_free(job);
 460         return r;
 461 }
 462
 463 /**
 464  * amdgpu_vce_get_destroy_msg - generate a VCE destroy msg
 465  *
 466  * @adev: amdgpu_device pointer
 467  * @ring: ring we should submit the msg to
 468  * @handle: VCE session handle to use
 469  * @fence: optional fence to return
 470  *
 471  * Close up a stream for HW test or if userspace failed to do so
 472  */
 473 int amdgpu_vce_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
 474                                bool direct, struct fence **fence)
 475 {
 476         const unsigned ib_size_dw = 1024;
 477         struct amdgpu_job *job;
 478         struct amdgpu_ib *ib;
 479         struct fence *f = NULL;
 480         int i, r;
 481
 482         r = amdgpu_job_alloc_with_ib(ring->adev, ib_size_dw * 4, &job);
 483         if (r)
 484                 return r;
 485
 486         ib = &job->ibs[0];
 487
 488         /* stitch together an VCE destroy msg */
 489         ib->length_dw = 0;
 490         ib->ptr[ib->length_dw++] = 0x0000000c; /* len */
 491         ib->ptr[ib->length_dw++] = 0x00000001; /* session cmd */
 492         ib->ptr[ib->length_dw++] = handle;
 493
 494         ib->ptr[ib->length_dw++] = 0x00000020; /* len */
 495         ib->ptr[ib->length_dw++] = 0x00000002; /* task info */
 496         ib->ptr[ib->length_dw++] = 0xffffffff; /* next task info, set to 0xffffffff if no */
 497         ib->ptr[ib->length_dw++] = 0x00000001; /* destroy session */
 498         ib->ptr[ib->length_dw++] = 0x00000000;
 499         ib->ptr[ib->length_dw++] = 0x00000000;
 500         ib->ptr[ib->length_dw++] = 0xffffffff; /* feedback is not needed, set to 0xffffffff and firmware will not output feedback */
 501         ib->ptr[ib->length_dw++] = 0x00000000;
 502
 503         ib->ptr[ib->length_dw++] = 0x00000008; /* len */
 504         ib->ptr[ib->length_dw++] = 0x02000001; /* destroy cmd */
 505
 506         for (i = ib->length_dw; i < ib_size_dw; ++i)
 507                 ib->ptr[i] = 0x0;
 508
 509         if (direct) {
 510                 r = amdgpu_ib_schedule(ring, 1, ib, NULL, NULL, &f);
 511                 job->fence = fence_get(f);
 512                 if (r)
 513                         goto err;
 514
 515                 amdgpu_job_free(job);
 516         } else {
 517                 r = amdgpu_job_submit(job, ring, &ring->adev->vce.entity,
 518                                       AMDGPU_FENCE_OWNER_UNDEFINED, &f);
 519                 if (r)
 520                         goto err;
 521         }
 522
 523         if (fence)
 524                 *fence = fence_get(f);
 525         fence_put(f);
 526         return 0;
 527
 528 err:
 529         amdgpu_job_free(job);
 530         return r;
 531 }
 532
 533 /**
 534  * amdgpu_vce_cs_reloc - command submission relocation
 535  *
 536  * @p: parser context
 537  * @lo: address of lower dword
 538  * @hi: address of higher dword
 539  * @size: minimum size
 540  *
 541  * Patch relocation inside command stream with real buffer address
 542  */
 543 static int amdgpu_vce_cs_reloc(struct amdgpu_cs_parser *p, uint32_t ib_idx,
 544                                int lo, int hi, unsigned size, uint32_t index)
 545 {
 546         struct amdgpu_bo_va_mapping *mapping;
 547         struct amdgpu_bo *bo;
 548         uint64_t addr;
 549
 550         if (index == 0xffffffff)
 551                 index = 0;
 552
 553         addr = ((uint64_t)amdgpu_get_ib_value(p, ib_idx, lo)) |
 554                ((uint64_t)amdgpu_get_ib_value(p, ib_idx, hi)) << 32;
 555         addr += ((uint64_t)size) * ((uint64_t)index);
 556
 557         mapping = amdgpu_cs_find_mapping(p, addr, &bo);
 558         if (mapping == NULL) {
 559                 DRM_ERROR("Can't find BO for addr 0x%010Lx %d %d %d %d\n",
 560                           addr, lo, hi, size, index);
 561                 return -EINVAL;
 562         }
 563
 564         if ((addr + (uint64_t)size) >
 565             ((uint64_t)mapping->it.last + 1) * AMDGPU_GPU_PAGE_SIZE) {
 566                 DRM_ERROR("BO to small for addr 0x%010Lx %d %d\n",
 567                           addr, lo, hi);
 568                 return -EINVAL;
 569         }
 570
 571         addr -= ((uint64_t)mapping->it.start) * AMDGPU_GPU_PAGE_SIZE;
 572         addr += amdgpu_bo_gpu_offset(bo);
 573         addr -= ((uint64_t)size) * ((uint64_t)index);
 574
 575         amdgpu_set_ib_value(p, ib_idx, lo, lower_32_bits(addr));
 576         amdgpu_set_ib_value(p, ib_idx, hi, upper_32_bits(addr));
 577
 578         return 0;
 579 }
 580
 581 /**
 582  * amdgpu_vce_validate_handle - validate stream handle
 583  *
 584  * @p: parser context
 585  * @handle: handle to validate
 586  * @allocated: allocated a new handle?
 587  *
 588  * Validates the handle and return the found session index or -EINVAL
 589  * we we don't have another free session index.
 590  */
 591 static int amdgpu_vce_validate_handle(struct amdgpu_cs_parser *p,
 592                                       uint32_t handle, uint32_t *allocated)
 593 {
 594         unsigned i;
 595
 596         /* validate the handle */
 597         for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
 598                 if (atomic_read(&p->adev->vce.handles[i]) == handle) {
 599                         if (p->adev->vce.filp[i] != p->filp) {
 600                                 DRM_ERROR("VCE handle collision detected!\n");
 601                                 return -EINVAL;
 602                         }
 603                         return i;
 604                 }
 605         }
 606
 607         /* handle not found try to alloc a new one */
 608         for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
 609                 if (!atomic_cmpxchg(&p->adev->vce.handles[i], 0, handle)) {
 610                         p->adev->vce.filp[i] = p->filp;
 611                         p->adev->vce.img_size[i] = 0;
 612                         *allocated |= 1 << i;
 613                         return i;
 614                 }
 615         }
 616
 617         DRM_ERROR("No more free VCE handles!\n");
 618         return -EINVAL;
 619 }
 620
 621 /**
 622  * amdgpu_vce_cs_parse - parse and validate the command stream
 623  *
 624  * @p: parser context
 625  *
 626  */
 627 int amdgpu_vce_ring_parse_cs(struct amdgpu_cs_parser *p, uint32_t ib_idx)
 628 {
 629         struct amdgpu_ib *ib = &p->job->ibs[ib_idx];
 630         unsigned fb_idx = 0, bs_idx = 0;
 631         int session_idx = -1;
 632         uint32_t destroyed = 0;
 633         uint32_t created = 0;
 634         uint32_t allocated = 0;
 635         uint32_t tmp, handle = 0;
 636         uint32_t *size = &tmp;
 637         int i, r = 0, idx = 0;
 638
 639         while (idx < ib->length_dw) {
 640                 uint32_t len = amdgpu_get_ib_value(p, ib_idx, idx);
 641                 uint32_t cmd = amdgpu_get_ib_value(p, ib_idx, idx + 1);
 642
 643                 if ((len < 8) || (len & 3)) {
 644                         DRM_ERROR("invalid VCE command length (%d)!\n", len);
 645                         r = -EINVAL;
 646                         goto out;
 647                 }
 648
 649                 switch (cmd) {
 650                 case 0x00000001: /* session */
 651                         handle = amdgpu_get_ib_value(p, ib_idx, idx + 2);
 652                         session_idx = amdgpu_vce_validate_handle(p, handle,
 653                                                                  &allocated);
 654                         if (session_idx < 0) {
 655                                 r = session_idx;
 656                                 goto out;
 657                         }
 658                         size = &p->adev->vce.img_size[session_idx];
 659                         break;
 660
 661                 case 0x00000002: /* task info */
 662                         fb_idx = amdgpu_get_ib_value(p, ib_idx, idx + 6);
 663                         bs_idx = amdgpu_get_ib_value(p, ib_idx, idx + 7);
 664                         break;
 665
 666                 case 0x01000001: /* create */
 667                         created |= 1 << session_idx;
 668                         if (destroyed & (1 << session_idx)) {
 669                                 destroyed &= ~(1 << session_idx);
 670                                 allocated |= 1 << session_idx;
 671
 672                         } else if (!(allocated & (1 << session_idx))) {
 673                                 DRM_ERROR("Handle already in use!\n");
 674                                 r = -EINVAL;
 675                                 goto out;
 676                         }
 677
 678                         *size = amdgpu_get_ib_value(p, ib_idx, idx + 8) *
 679                                 amdgpu_get_ib_value(p, ib_idx, idx + 10) *
 680                                 8 * 3 / 2;
 681                         break;
 682
 683                 case 0x04000001: /* config extension */
 684                 case 0x04000002: /* pic control */
 685                 case 0x04000005: /* rate control */
 686                 case 0x04000007: /* motion estimation */
 687                 case 0x04000008: /* rdo */
 688                 case 0x04000009: /* vui */
 689                 case 0x05000002: /* auxiliary buffer */
 690                         break;
 691
 692                 case 0x03000001: /* encode */
 693                         r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 10, idx + 9,
 694                                                 *size, 0);
 695                         if (r)
 696                                 goto out;
 697
 698                         r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 12, idx + 11,
 699                                                 *size / 3, 0);
 700                         if (r)
 701                                 goto out;
 702                         break;
 703
 704                 case 0x02000001: /* destroy */
 705                         destroyed |= 1 << session_idx;
 706                         break;
 707
 708                 case 0x05000001: /* context buffer */
 709                         r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 3, idx + 2,
 710                                                 *size * 2, 0);
 711                         if (r)
 712                                 goto out;
 713                         break;
 714
 715                 case 0x05000004: /* video bitstream buffer */
 716                         tmp = amdgpu_get_ib_value(p, ib_idx, idx + 4);
 717                         r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 3, idx + 2,
 718                                                 tmp, bs_idx);
 719                         if (r)
 720                                 goto out;
 721                         break;
 722
 723                 case 0x05000005: /* feedback buffer */
 724                         r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 3, idx + 2,
 725                                                 4096, fb_idx);
 726                         if (r)
 727                                 goto out;
 728                         break;
 729
 730                 default:
 731                         DRM_ERROR("invalid VCE command (0x%x)!\n", cmd);
 732                         r = -EINVAL;
 733                         goto out;
 734                 }
 735
 736                 if (session_idx == -1) {
 737                         DRM_ERROR("no session command at start of IB\n");
 738                         r = -EINVAL;
 739                         goto out;
 740                 }
 741
 742                 idx += len / 4;
 743         }
 744
 745         if (allocated & ~created) {
 746                 DRM_ERROR("New session without create command!\n");
 747                 r = -ENOENT;
 748         }
 749
 750 out:
 751         if (!r) {
 752                 /* No error, free all destroyed handle slots */
 753                 tmp = destroyed;
 754         } else {
 755                 /* Error during parsing, free all allocated handle slots */
 756                 tmp = allocated;
 757         }
 758
 759         for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i)
 760                 if (tmp & (1 << i))
 761                         atomic_set(&p->adev->vce.handles[i], 0);
 762
 763         return r;
 764 }
 765
 766 /**
 767  * amdgpu_vce_ring_emit_ib - execute indirect buffer
 768  *
 769  * @ring: engine to use
 770  * @ib: the IB to execute
 771  *
 772  */
 773 void amdgpu_vce_ring_emit_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib,
 774                              unsigned vm_id, bool ctx_switch)
 775 {
 776         amdgpu_ring_write(ring, VCE_CMD_IB);
 777         amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
 778         amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
 779         amdgpu_ring_write(ring, ib->length_dw);
 780 }
 781
 782 /**
 783  * amdgpu_vce_ring_emit_fence - add a fence command to the ring
 784  *
 785  * @ring: engine to use
 786  * @fence: the fence
 787  *
 788  */
 789 void amdgpu_vce_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
 790                                 unsigned flags)
 791 {
 792         WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
 793
 794         amdgpu_ring_write(ring, VCE_CMD_FENCE);
 795         amdgpu_ring_write(ring, addr);
 796         amdgpu_ring_write(ring, upper_32_bits(addr));
 797         amdgpu_ring_write(ring, seq);
 798         amdgpu_ring_write(ring, VCE_CMD_TRAP);
 799         amdgpu_ring_write(ring, VCE_CMD_END);
 800 }
 801
 802 /**
 803  * amdgpu_vce_ring_test_ring - test if VCE ring is working
 804  *
 805  * @ring: the engine to test on
 806  *
 807  */
 808 int amdgpu_vce_ring_test_ring(struct amdgpu_ring *ring)
 809 {
 810         struct amdgpu_device *adev = ring->adev;
 811         uint32_t rptr = amdgpu_ring_get_rptr(ring);
 812         unsigned i;
 813         int r;
 814
 815         r = amdgpu_ring_alloc(ring, 16);
 816         if (r) {
 817                 DRM_ERROR("amdgpu: vce failed to lock ring %d (%d).\n",
 818                           ring->idx, r);
 819                 return r;
 820         }
 821         amdgpu_ring_write(ring, VCE_CMD_END);
 822         amdgpu_ring_commit(ring);
 823
 824         for (i = 0; i < adev->usec_timeout; i++) {
 825                 if (amdgpu_ring_get_rptr(ring) != rptr)
 826                         break;
 827                 DRM_UDELAY(1);
 828         }
 829
 830         if (i < adev->usec_timeout) {
 831                 DRM_INFO("ring test on %d succeeded in %d usecs\n",
 832                          ring->idx, i);
 833         } else {
 834                 DRM_ERROR("amdgpu: ring %d test failed\n",
 835                           ring->idx);
 836                 r = -ETIMEDOUT;
 837         }
 838
 839         return r;
 840 }
 841
 842 /**
 843  * amdgpu_vce_ring_test_ib - test if VCE IBs are working
 844  *
 845  * @ring: the engine to test on
 846  *
 847  */
 848 int amdgpu_vce_ring_test_ib(struct amdgpu_ring *ring, long timeout)
 849 {
 850         struct fence *fence = NULL;
 851         long r;
 852
 853         /* skip vce ring1 ib test for now, since it's not reliable */
 854         if (ring == &ring->adev->vce.ring[1])
 855                 return 0;
 856
 857         r = amdgpu_vce_get_create_msg(ring, 1, NULL);
 858         if (r) {
 859                 DRM_ERROR("amdgpu: failed to get create msg (%ld).\n", r);
 860                 goto error;
 861         }
 862
 863         r = amdgpu_vce_get_destroy_msg(ring, 1, true, &fence);
 864         if (r) {
 865                 DRM_ERROR("amdgpu: failed to get destroy ib (%ld).\n", r);
 866                 goto error;
 867         }
 868
 869         r = fence_wait_timeout(fence, false, timeout);
 870         if (r == 0) {
 871                 DRM_ERROR("amdgpu: IB test timed out.\n");
 872                 r = -ETIMEDOUT;
 873         } else if (r < 0) {
 874                 DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
 875         } else {
 876                 DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
 877                 r = 0;
 878         }
 879 error:
 880         fence_put(fence);
 881         return r;
 882 }