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 <christian.koenig@amd.com>
  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                              AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS,
 162                              NULL, NULL, &adev->vce.vcpu_bo);
 163         if (r) {
 164                 dev_err(adev->dev, "(%d) failed to allocate VCE bo\n", r);
 165                 return r;
 166         }
 167
 168         r = amdgpu_bo_reserve(adev->vce.vcpu_bo, false);
 169         if (r) {
 170                 amdgpu_bo_unref(&adev->vce.vcpu_bo);
 171                 dev_err(adev->dev, "(%d) failed to reserve VCE bo\n", r);
 172                 return r;
 173         }
 174
 175         r = amdgpu_bo_pin(adev->vce.vcpu_bo, AMDGPU_GEM_DOMAIN_VRAM,
 176                           &adev->vce.gpu_addr);
 177         amdgpu_bo_unreserve(adev->vce.vcpu_bo);
 178         if (r) {
 179                 amdgpu_bo_unref(&adev->vce.vcpu_bo);
 180                 dev_err(adev->dev, "(%d) VCE bo pin failed\n", r);
 181                 return r;
 182         }
 183
 184
 185         ring = &adev->vce.ring[0];
 186         rq = &ring->sched.sched_rq[AMD_SCHED_PRIORITY_NORMAL];
 187         r = amd_sched_entity_init(&ring->sched, &adev->vce.entity,
 188                                   rq, amdgpu_sched_jobs);
 189         if (r != 0) {
 190                 DRM_ERROR("Failed setting up VCE run queue.\n");
 191                 return r;
 192         }
 193
 194         for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
 195                 atomic_set(&adev->vce.handles[i], 0);
 196                 adev->vce.filp[i] = NULL;
 197         }
 198
 199         INIT_DELAYED_WORK(&adev->vce.idle_work, amdgpu_vce_idle_work_handler);
 200         mutex_init(&adev->vce.idle_mutex);
 201
 202         return 0;
 203 }
 204
 205 /**
 206  * amdgpu_vce_fini - free memory
 207  *
 208  * @adev: amdgpu_device pointer
 209  *
 210  * Last step on VCE teardown, free firmware memory
 211  */
 212 int amdgpu_vce_sw_fini(struct amdgpu_device *adev)
 213 {
 214         unsigned i;
 215
 216         if (adev->vce.vcpu_bo == NULL)
 217                 return 0;
 218
 219         amd_sched_entity_fini(&adev->vce.ring[0].sched, &adev->vce.entity);
 220
 221         amdgpu_bo_unref(&adev->vce.vcpu_bo);
 222
 223         for (i = 0; i < adev->vce.num_rings; i++)
 224                 amdgpu_ring_fini(&adev->vce.ring[i]);
 225
 226         release_firmware(adev->vce.fw);
 227         mutex_destroy(&adev->vce.idle_mutex);
 228
 229         return 0;
 230 }
 231
 232 /**
 233  * amdgpu_vce_suspend - unpin VCE fw memory
 234  *
 235  * @adev: amdgpu_device pointer
 236  *
 237  */
 238 int amdgpu_vce_suspend(struct amdgpu_device *adev)
 239 {
 240         int i;
 241
 242         if (adev->vce.vcpu_bo == NULL)
 243                 return 0;
 244
 245         for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i)
 246                 if (atomic_read(&adev->vce.handles[i]))
 247                         break;
 248
 249         if (i == AMDGPU_MAX_VCE_HANDLES)
 250                 return 0;
 251
 252         cancel_delayed_work_sync(&adev->vce.idle_work);
 253         /* TODO: suspending running encoding sessions isn't supported */
 254         return -EINVAL;
 255 }
 256
 257 /**
 258  * amdgpu_vce_resume - pin VCE fw memory
 259  *
 260  * @adev: amdgpu_device pointer
 261  *
 262  */
 263 int amdgpu_vce_resume(struct amdgpu_device *adev)
 264 {
 265         void *cpu_addr;
 266         const struct common_firmware_header *hdr;
 267         unsigned offset;
 268         int r;
 269
 270         if (adev->vce.vcpu_bo == NULL)
 271                 return -EINVAL;
 272
 273         r = amdgpu_bo_reserve(adev->vce.vcpu_bo, false);
 274         if (r) {
 275                 dev_err(adev->dev, "(%d) failed to reserve VCE bo\n", r);
 276                 return r;
 277         }
 278
 279         r = amdgpu_bo_kmap(adev->vce.vcpu_bo, &cpu_addr);
 280         if (r) {
 281                 amdgpu_bo_unreserve(adev->vce.vcpu_bo);
 282                 dev_err(adev->dev, "(%d) VCE map failed\n", r);
 283                 return r;
 284         }
 285
 286         hdr = (const struct common_firmware_header *)adev->vce.fw->data;
 287         offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
 288         memcpy_toio(cpu_addr, adev->vce.fw->data + offset,
 289                     adev->vce.fw->size - offset);
 290
 291         amdgpu_bo_kunmap(adev->vce.vcpu_bo);
 292
 293         amdgpu_bo_unreserve(adev->vce.vcpu_bo);
 294
 295         return 0;
 296 }
 297
 298 /**
 299  * amdgpu_vce_idle_work_handler - power off VCE
 300  *
 301  * @work: pointer to work structure
 302  *
 303  * power of VCE when it's not used any more
 304  */
 305 static void amdgpu_vce_idle_work_handler(struct work_struct *work)
 306 {
 307         struct amdgpu_device *adev =
 308                 container_of(work, struct amdgpu_device, vce.idle_work.work);
 309         unsigned i, count = 0;
 310
 311         for (i = 0; i < adev->vce.num_rings; i++)
 312                 count += amdgpu_fence_count_emitted(&adev->vce.ring[i]);
 313
 314         if (count == 0) {
 315                 if (adev->pm.dpm_enabled) {
 316                         amdgpu_dpm_enable_vce(adev, false);
 317                 } else {
 318                         amdgpu_asic_set_vce_clocks(adev, 0, 0);
 319                 }
 320         } else {
 321                 schedule_delayed_work(&adev->vce.idle_work, VCE_IDLE_TIMEOUT);
 322         }
 323 }
 324
 325 /**
 326  * amdgpu_vce_ring_begin_use - power up VCE
 327  *
 328  * @ring: amdgpu ring
 329  *
 330  * Make sure VCE is powerd up when we want to use it
 331  */
 332 void amdgpu_vce_ring_begin_use(struct amdgpu_ring *ring)
 333 {
 334         struct amdgpu_device *adev = ring->adev;
 335         bool set_clocks;
 336
 337         mutex_lock(&adev->vce.idle_mutex);
 338         set_clocks = !cancel_delayed_work_sync(&adev->vce.idle_work);
 339         if (set_clocks) {
 340                 if (adev->pm.dpm_enabled) {
 341                         amdgpu_dpm_enable_vce(adev, true);
 342                 } else {
 343                         amdgpu_asic_set_vce_clocks(adev, 53300, 40000);
 344                 }
 345         }
 346         mutex_unlock(&adev->vce.idle_mutex);
 347 }
 348
 349 /**
 350  * amdgpu_vce_ring_end_use - power VCE down
 351  *
 352  * @ring: amdgpu ring
 353  *
 354  * Schedule work to power VCE down again
 355  */
 356 void amdgpu_vce_ring_end_use(struct amdgpu_ring *ring)
 357 {
 358         schedule_delayed_work(&ring->adev->vce.idle_work, VCE_IDLE_TIMEOUT);
 359 }
 360
 361 /**
 362  * amdgpu_vce_free_handles - free still open VCE handles
 363  *
 364  * @adev: amdgpu_device pointer
 365  * @filp: drm file pointer
 366  *
 367  * Close all VCE handles still open by this file pointer
 368  */
 369 void amdgpu_vce_free_handles(struct amdgpu_device *adev, struct drm_file *filp)
 370 {
 371         struct amdgpu_ring *ring = &adev->vce.ring[0];
 372         int i, r;
 373         for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
 374                 uint32_t handle = atomic_read(&adev->vce.handles[i]);
 375
 376                 if (!handle || adev->vce.filp[i] != filp)
 377                         continue;
 378
 379                 r = amdgpu_vce_get_destroy_msg(ring, handle, false, NULL);
 380                 if (r)
 381                         DRM_ERROR("Error destroying VCE handle (%d)!\n", r);
 382
 383                 adev->vce.filp[i] = NULL;
 384                 atomic_set(&adev->vce.handles[i], 0);
 385         }
 386 }
 387
 388 /**
 389  * amdgpu_vce_get_create_msg - generate a VCE create msg
 390  *
 391  * @adev: amdgpu_device pointer
 392  * @ring: ring we should submit the msg to
 393  * @handle: VCE session handle to use
 394  * @fence: optional fence to return
 395  *
 396  * Open up a stream for HW test
 397  */
 398 int amdgpu_vce_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
 399                               struct dma_fence **fence)
 400 {
 401         const unsigned ib_size_dw = 1024;
 402         struct amdgpu_job *job;
 403         struct amdgpu_ib *ib;
 404         struct dma_fence *f = NULL;
 405         uint64_t dummy;
 406         int i, r;
 407
 408         r = amdgpu_job_alloc_with_ib(ring->adev, ib_size_dw * 4, &job);
 409         if (r)
 410                 return r;
 411
 412         ib = &job->ibs[0];
 413
 414         dummy = ib->gpu_addr + 1024;
 415
 416         /* stitch together an VCE create msg */
 417         ib->length_dw = 0;
 418         ib->ptr[ib->length_dw++] = 0x0000000c; /* len */
 419         ib->ptr[ib->length_dw++] = 0x00000001; /* session cmd */
 420         ib->ptr[ib->length_dw++] = handle;
 421
 422         if ((ring->adev->vce.fw_version >> 24) >= 52)
 423                 ib->ptr[ib->length_dw++] = 0x00000040; /* len */
 424         else
 425                 ib->ptr[ib->length_dw++] = 0x00000030; /* len */
 426         ib->ptr[ib->length_dw++] = 0x01000001; /* create cmd */
 427         ib->ptr[ib->length_dw++] = 0x00000000;
 428         ib->ptr[ib->length_dw++] = 0x00000042;
 429         ib->ptr[ib->length_dw++] = 0x0000000a;
 430         ib->ptr[ib->length_dw++] = 0x00000001;
 431         ib->ptr[ib->length_dw++] = 0x00000080;
 432         ib->ptr[ib->length_dw++] = 0x00000060;
 433         ib->ptr[ib->length_dw++] = 0x00000100;
 434         ib->ptr[ib->length_dw++] = 0x00000100;
 435         ib->ptr[ib->length_dw++] = 0x0000000c;
 436         ib->ptr[ib->length_dw++] = 0x00000000;
 437         if ((ring->adev->vce.fw_version >> 24) >= 52) {
 438                 ib->ptr[ib->length_dw++] = 0x00000000;
 439                 ib->ptr[ib->length_dw++] = 0x00000000;
 440                 ib->ptr[ib->length_dw++] = 0x00000000;
 441                 ib->ptr[ib->length_dw++] = 0x00000000;
 442         }
 443
 444         ib->ptr[ib->length_dw++] = 0x00000014; /* len */
 445         ib->ptr[ib->length_dw++] = 0x05000005; /* feedback buffer */
 446         ib->ptr[ib->length_dw++] = upper_32_bits(dummy);
 447         ib->ptr[ib->length_dw++] = dummy;
 448         ib->ptr[ib->length_dw++] = 0x00000001;
 449
 450         for (i = ib->length_dw; i < ib_size_dw; ++i)
 451                 ib->ptr[i] = 0x0;
 452
 453         r = amdgpu_ib_schedule(ring, 1, ib, NULL, NULL, &f);
 454         job->fence = dma_fence_get(f);
 455         if (r)
 456                 goto err;
 457
 458         amdgpu_job_free(job);
 459         if (fence)
 460                 *fence = dma_fence_get(f);
 461         dma_fence_put(f);
 462         return 0;
 463
 464 err:
 465         amdgpu_job_free(job);
 466         return r;
 467 }
 468
 469 /**
 470  * amdgpu_vce_get_destroy_msg - generate a VCE destroy msg
 471  *
 472  * @adev: amdgpu_device pointer
 473  * @ring: ring we should submit the msg to
 474  * @handle: VCE session handle to use
 475  * @fence: optional fence to return
 476  *
 477  * Close up a stream for HW test or if userspace failed to do so
 478  */
 479 int amdgpu_vce_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
 480                                bool direct, struct dma_fence **fence)
 481 {
 482         const unsigned ib_size_dw = 1024;
 483         struct amdgpu_job *job;
 484         struct amdgpu_ib *ib;
 485         struct dma_fence *f = NULL;
 486         int i, r;
 487
 488         r = amdgpu_job_alloc_with_ib(ring->adev, ib_size_dw * 4, &job);
 489         if (r)
 490                 return r;
 491
 492         ib = &job->ibs[0];
 493
 494         /* stitch together an VCE destroy msg */
 495         ib->length_dw = 0;
 496         ib->ptr[ib->length_dw++] = 0x0000000c; /* len */
 497         ib->ptr[ib->length_dw++] = 0x00000001; /* session cmd */
 498         ib->ptr[ib->length_dw++] = handle;
 499
 500         ib->ptr[ib->length_dw++] = 0x00000020; /* len */
 501         ib->ptr[ib->length_dw++] = 0x00000002; /* task info */
 502         ib->ptr[ib->length_dw++] = 0xffffffff; /* next task info, set to 0xffffffff if no */
 503         ib->ptr[ib->length_dw++] = 0x00000001; /* destroy session */
 504         ib->ptr[ib->length_dw++] = 0x00000000;
 505         ib->ptr[ib->length_dw++] = 0x00000000;
 506         ib->ptr[ib->length_dw++] = 0xffffffff; /* feedback is not needed, set to 0xffffffff and firmware will not output feedback */
 507         ib->ptr[ib->length_dw++] = 0x00000000;
 508
 509         ib->ptr[ib->length_dw++] = 0x00000008; /* len */
 510         ib->ptr[ib->length_dw++] = 0x02000001; /* destroy cmd */
 511
 512         for (i = ib->length_dw; i < ib_size_dw; ++i)
 513                 ib->ptr[i] = 0x0;
 514
 515         if (direct) {
 516                 r = amdgpu_ib_schedule(ring, 1, ib, NULL, NULL, &f);
 517                 job->fence = dma_fence_get(f);
 518                 if (r)
 519                         goto err;
 520
 521                 amdgpu_job_free(job);
 522         } else {
 523                 r = amdgpu_job_submit(job, ring, &ring->adev->vce.entity,
 524                                       AMDGPU_FENCE_OWNER_UNDEFINED, &f);
 525                 if (r)
 526                         goto err;
 527         }
 528
 529         if (fence)
 530                 *fence = dma_fence_get(f);
 531         dma_fence_put(f);
 532         return 0;
 533
 534 err:
 535         amdgpu_job_free(job);
 536         return r;
 537 }
 538
 539 /**
 540  * amdgpu_vce_cs_reloc - command submission relocation
 541  *
 542  * @p: parser context
 543  * @lo: address of lower dword
 544  * @hi: address of higher dword
 545  * @size: minimum size
 546  *
 547  * Patch relocation inside command stream with real buffer address
 548  */
 549 static int amdgpu_vce_cs_reloc(struct amdgpu_cs_parser *p, uint32_t ib_idx,
 550                                int lo, int hi, unsigned size, uint32_t index)
 551 {
 552         struct amdgpu_bo_va_mapping *mapping;
 553         struct amdgpu_bo *bo;
 554         uint64_t addr;
 555
 556         if (index == 0xffffffff)
 557                 index = 0;
 558
 559         addr = ((uint64_t)amdgpu_get_ib_value(p, ib_idx, lo)) |
 560                ((uint64_t)amdgpu_get_ib_value(p, ib_idx, hi)) << 32;
 561         addr += ((uint64_t)size) * ((uint64_t)index);
 562
 563         mapping = amdgpu_cs_find_mapping(p, addr, &bo);
 564         if (mapping == NULL) {
 565                 DRM_ERROR("Can't find BO for addr 0x%010Lx %d %d %d %d\n",
 566                           addr, lo, hi, size, index);
 567                 return -EINVAL;
 568         }
 569
 570         if ((addr + (uint64_t)size) >
 571             ((uint64_t)mapping->it.last + 1) * AMDGPU_GPU_PAGE_SIZE) {
 572                 DRM_ERROR("BO to small for addr 0x%010Lx %d %d\n",
 573                           addr, lo, hi);
 574                 return -EINVAL;
 575         }
 576
 577         addr -= ((uint64_t)mapping->it.start) * AMDGPU_GPU_PAGE_SIZE;
 578         addr += amdgpu_bo_gpu_offset(bo);
 579         addr -= ((uint64_t)size) * ((uint64_t)index);
 580
 581         amdgpu_set_ib_value(p, ib_idx, lo, lower_32_bits(addr));
 582         amdgpu_set_ib_value(p, ib_idx, hi, upper_32_bits(addr));
 583
 584         return 0;
 585 }
 586
 587 /**
 588  * amdgpu_vce_validate_handle - validate stream handle
 589  *
 590  * @p: parser context
 591  * @handle: handle to validate
 592  * @allocated: allocated a new handle?
 593  *
 594  * Validates the handle and return the found session index or -EINVAL
 595  * we we don't have another free session index.
 596  */
 597 static int amdgpu_vce_validate_handle(struct amdgpu_cs_parser *p,
 598                                       uint32_t handle, uint32_t *allocated)
 599 {
 600         unsigned i;
 601
 602         /* validate the handle */
 603         for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
 604                 if (atomic_read(&p->adev->vce.handles[i]) == handle) {
 605                         if (p->adev->vce.filp[i] != p->filp) {
 606                                 DRM_ERROR("VCE handle collision detected!\n");
 607                                 return -EINVAL;
 608                         }
 609                         return i;
 610                 }
 611         }
 612
 613         /* handle not found try to alloc a new one */
 614         for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
 615                 if (!atomic_cmpxchg(&p->adev->vce.handles[i], 0, handle)) {
 616                         p->adev->vce.filp[i] = p->filp;
 617                         p->adev->vce.img_size[i] = 0;
 618                         *allocated |= 1 << i;
 619                         return i;
 620                 }
 621         }
 622
 623         DRM_ERROR("No more free VCE handles!\n");
 624         return -EINVAL;
 625 }
 626
 627 /**
 628  * amdgpu_vce_cs_parse - parse and validate the command stream
 629  *
 630  * @p: parser context
 631  *
 632  */
 633 int amdgpu_vce_ring_parse_cs(struct amdgpu_cs_parser *p, uint32_t ib_idx)
 634 {
 635         struct amdgpu_ib *ib = &p->job->ibs[ib_idx];
 636         unsigned fb_idx = 0, bs_idx = 0;
 637         int session_idx = -1;
 638         uint32_t destroyed = 0;
 639         uint32_t created = 0;
 640         uint32_t allocated = 0;
 641         uint32_t tmp, handle = 0;
 642         uint32_t *size = &tmp;
 643         int i, r, idx = 0;
 644
 645         p->job->vm = NULL;
 646         ib->gpu_addr = amdgpu_sa_bo_gpu_addr(ib->sa_bo);
 647
 648         r = amdgpu_cs_sysvm_access_required(p);
 649         if (r)
 650                 return r;
 651
 652         while (idx < ib->length_dw) {
 653                 uint32_t len = amdgpu_get_ib_value(p, ib_idx, idx);
 654                 uint32_t cmd = amdgpu_get_ib_value(p, ib_idx, idx + 1);
 655
 656                 if ((len < 8) || (len & 3)) {
 657                         DRM_ERROR("invalid VCE command length (%d)!\n", len);
 658                         r = -EINVAL;
 659                         goto out;
 660                 }
 661
 662                 switch (cmd) {
 663                 case 0x00000001: /* session */
 664                         handle = amdgpu_get_ib_value(p, ib_idx, idx + 2);
 665                         session_idx = amdgpu_vce_validate_handle(p, handle,
 666                                                                  &allocated);
 667                         if (session_idx < 0) {
 668                                 r = session_idx;
 669                                 goto out;
 670                         }
 671                         size = &p->adev->vce.img_size[session_idx];
 672                         break;
 673
 674                 case 0x00000002: /* task info */
 675                         fb_idx = amdgpu_get_ib_value(p, ib_idx, idx + 6);
 676                         bs_idx = amdgpu_get_ib_value(p, ib_idx, idx + 7);
 677                         break;
 678
 679                 case 0x01000001: /* create */
 680                         created |= 1 << session_idx;
 681                         if (destroyed & (1 << session_idx)) {
 682                                 destroyed &= ~(1 << session_idx);
 683                                 allocated |= 1 << session_idx;
 684
 685                         } else if (!(allocated & (1 << session_idx))) {
 686                                 DRM_ERROR("Handle already in use!\n");
 687                                 r = -EINVAL;
 688                                 goto out;
 689                         }
 690
 691                         *size = amdgpu_get_ib_value(p, ib_idx, idx + 8) *
 692                                 amdgpu_get_ib_value(p, ib_idx, idx + 10) *
 693                                 8 * 3 / 2;
 694                         break;
 695
 696                 case 0x04000001: /* config extension */
 697                 case 0x04000002: /* pic control */
 698                 case 0x04000005: /* rate control */
 699                 case 0x04000007: /* motion estimation */
 700                 case 0x04000008: /* rdo */
 701                 case 0x04000009: /* vui */
 702                 case 0x05000002: /* auxiliary buffer */
 703                 case 0x05000009: /* clock table */
 704                         break;
 705
 706                 case 0x0500000c: /* hw config */
 707                         switch (p->adev->asic_type) {
 708 #ifdef CONFIG_DRM_AMDGPU_CIK
 709                         case CHIP_KAVERI:
 710                         case CHIP_MULLINS:
 711 #endif
 712                         case CHIP_CARRIZO:
 713                                 break;
 714                         default:
 715                                 r = -EINVAL;
 716                                 goto out;
 717                         }
 718                         break;
 719
 720                 case 0x03000001: /* encode */
 721                         r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 10, idx + 9,
 722                                                 *size, 0);
 723                         if (r)
 724                                 goto out;
 725
 726                         r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 12, idx + 11,
 727                                                 *size / 3, 0);
 728                         if (r)
 729                                 goto out;
 730                         break;
 731
 732                 case 0x02000001: /* destroy */
 733                         destroyed |= 1 << session_idx;
 734                         break;
 735
 736                 case 0x05000001: /* context buffer */
 737                         r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 3, idx + 2,
 738                                                 *size * 2, 0);
 739                         if (r)
 740                                 goto out;
 741                         break;
 742
 743                 case 0x05000004: /* video bitstream buffer */
 744                         tmp = amdgpu_get_ib_value(p, ib_idx, idx + 4);
 745                         r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 3, idx + 2,
 746                                                 tmp, bs_idx);
 747                         if (r)
 748                                 goto out;
 749                         break;
 750
 751                 case 0x05000005: /* feedback buffer */
 752                         r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 3, idx + 2,
 753                                                 4096, fb_idx);
 754                         if (r)
 755                                 goto out;
 756                         break;
 757
 758                 default:
 759                         DRM_ERROR("invalid VCE command (0x%x)!\n", cmd);
 760                         r = -EINVAL;
 761                         goto out;
 762                 }
 763
 764                 if (session_idx == -1) {
 765                         DRM_ERROR("no session command at start of IB\n");
 766                         r = -EINVAL;
 767                         goto out;
 768                 }
 769
 770                 idx += len / 4;
 771         }
 772
 773         if (allocated & ~created) {
 774                 DRM_ERROR("New session without create command!\n");
 775                 r = -ENOENT;
 776         }
 777
 778 out:
 779         if (!r) {
 780                 /* No error, free all destroyed handle slots */
 781                 tmp = destroyed;
 782         } else {
 783                 /* Error during parsing, free all allocated handle slots */
 784                 tmp = allocated;
 785         }
 786
 787         for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i)
 788                 if (tmp & (1 << i))
 789                         atomic_set(&p->adev->vce.handles[i], 0);
 790
 791         return r;
 792 }
 793
 794 /**
 795  * amdgpu_vce_cs_parse_vm - parse the command stream in VM mode
 796  *
 797  * @p: parser context
 798  *
 799  */
 800 int amdgpu_vce_ring_parse_cs_vm(struct amdgpu_cs_parser *p, uint32_t ib_idx)
 801 {
 802         struct amdgpu_ib *ib = &p->job->ibs[ib_idx];
 803         int session_idx = -1;
 804         uint32_t destroyed = 0;
 805         uint32_t created = 0;
 806         uint32_t allocated = 0;
 807         uint32_t tmp, handle = 0;
 808         int i, r = 0, idx = 0;
 809
 810         while (idx < ib->length_dw) {
 811                 uint32_t len = amdgpu_get_ib_value(p, ib_idx, idx);
 812                 uint32_t cmd = amdgpu_get_ib_value(p, ib_idx, idx + 1);
 813
 814                 if ((len < 8) || (len & 3)) {
 815                         DRM_ERROR("invalid VCE command length (%d)!\n", len);
 816                         r = -EINVAL;
 817                         goto out;
 818                 }
 819
 820                 switch (cmd) {
 821                 case 0x00000001: /* session */
 822                         handle = amdgpu_get_ib_value(p, ib_idx, idx + 2);
 823                         session_idx = amdgpu_vce_validate_handle(p, handle,
 824                                                                  &allocated);
 825                         if (session_idx < 0) {
 826                                 r = session_idx;
 827                                 goto out;
 828                         }
 829                         break;
 830
 831                 case 0x01000001: /* create */
 832                         created |= 1 << session_idx;
 833                         if (destroyed & (1 << session_idx)) {
 834                                 destroyed &= ~(1 << session_idx);
 835                                 allocated |= 1 << session_idx;
 836
 837                         } else if (!(allocated & (1 << session_idx))) {
 838                                 DRM_ERROR("Handle already in use!\n");
 839                                 r = -EINVAL;
 840                                 goto out;
 841                         }
 842
 843                         break;
 844
 845                 case 0x02000001: /* destroy */
 846                         destroyed |= 1 << session_idx;
 847                         break;
 848
 849                 default:
 850                         break;
 851                 }
 852
 853                 if (session_idx == -1) {
 854                         DRM_ERROR("no session command at start of IB\n");
 855                         r = -EINVAL;
 856                         goto out;
 857                 }
 858
 859                 idx += len / 4;
 860         }
 861
 862         if (allocated & ~created) {
 863                 DRM_ERROR("New session without create command!\n");
 864                 r = -ENOENT;
 865         }
 866
 867 out:
 868         if (!r) {
 869                 /* No error, free all destroyed handle slots */
 870                 tmp = destroyed;
 871                 amdgpu_ib_free(p->adev, ib, NULL);
 872         } else {
 873                 /* Error during parsing, free all allocated handle slots */
 874                 tmp = allocated;
 875         }
 876
 877         for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i)
 878                 if (tmp & (1 << i))
 879                         atomic_set(&p->adev->vce.handles[i], 0);
 880
 881         return r;
 882 }
 883
 884 /**
 885  * amdgpu_vce_ring_emit_ib - execute indirect buffer
 886  *
 887  * @ring: engine to use
 888  * @ib: the IB to execute
 889  *
 890  */
 891 void amdgpu_vce_ring_emit_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib,
 892                              unsigned vm_id, bool ctx_switch)
 893 {
 894         amdgpu_ring_write(ring, VCE_CMD_IB);
 895         amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
 896         amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
 897         amdgpu_ring_write(ring, ib->length_dw);
 898 }
 899
 900 /**
 901  * amdgpu_vce_ring_emit_fence - add a fence command to the ring
 902  *
 903  * @ring: engine to use
 904  * @fence: the fence
 905  *
 906  */
 907 void amdgpu_vce_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
 908                                 unsigned flags)
 909 {
 910         WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
 911
 912         amdgpu_ring_write(ring, VCE_CMD_FENCE);
 913         amdgpu_ring_write(ring, addr);
 914         amdgpu_ring_write(ring, upper_32_bits(addr));
 915         amdgpu_ring_write(ring, seq);
 916         amdgpu_ring_write(ring, VCE_CMD_TRAP);
 917         amdgpu_ring_write(ring, VCE_CMD_END);
 918 }
 919
 920 /**
 921  * amdgpu_vce_ring_test_ring - test if VCE ring is working
 922  *
 923  * @ring: the engine to test on
 924  *
 925  */
 926 int amdgpu_vce_ring_test_ring(struct amdgpu_ring *ring)
 927 {
 928         struct amdgpu_device *adev = ring->adev;
 929         uint32_t rptr = amdgpu_ring_get_rptr(ring);
 930         unsigned i;
 931         int r;
 932
 933         r = amdgpu_ring_alloc(ring, 16);
 934         if (r) {
 935                 DRM_ERROR("amdgpu: vce failed to lock ring %d (%d).\n",
 936                           ring->idx, r);
 937                 return r;
 938         }
 939         amdgpu_ring_write(ring, VCE_CMD_END);
 940         amdgpu_ring_commit(ring);
 941
 942         for (i = 0; i < adev->usec_timeout; i++) {
 943                 if (amdgpu_ring_get_rptr(ring) != rptr)
 944                         break;
 945                 DRM_UDELAY(1);
 946         }
 947
 948         if (i < adev->usec_timeout) {
 949                 DRM_INFO("ring test on %d succeeded in %d usecs\n",
 950                          ring->idx, i);
 951         } else {
 952                 DRM_ERROR("amdgpu: ring %d test failed\n",
 953                           ring->idx);
 954                 r = -ETIMEDOUT;
 955         }
 956
 957         return r;
 958 }
 959
 960 /**
 961  * amdgpu_vce_ring_test_ib - test if VCE IBs are working
 962  *
 963  * @ring: the engine to test on
 964  *
 965  */
 966 int amdgpu_vce_ring_test_ib(struct amdgpu_ring *ring, long timeout)
 967 {
 968         struct dma_fence *fence = NULL;
 969         long r;
 970
 971         /* skip vce ring1/2 ib test for now, since it's not reliable */
 972         if (ring != &ring->adev->vce.ring[0])
 973                 return 0;
 974
 975         r = amdgpu_vce_get_create_msg(ring, 1, NULL);
 976         if (r) {
 977                 DRM_ERROR("amdgpu: failed to get create msg (%ld).\n", r);
 978                 goto error;
 979         }
 980
 981         r = amdgpu_vce_get_destroy_msg(ring, 1, true, &fence);
 982         if (r) {
 983                 DRM_ERROR("amdgpu: failed to get destroy ib (%ld).\n", r);
 984                 goto error;
 985         }
 986
 987         r = dma_fence_wait_timeout(fence, false, timeout);
 988         if (r == 0) {
 989                 DRM_ERROR("amdgpu: IB test timed out.\n");
 990                 r = -ETIMEDOUT;
 991         } else if (r < 0) {
 992                 DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
 993         } else {
 994                 DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
 995                 r = 0;
 996         }
 997 error:
 998         dma_fence_put(fence);
 999         return r;
1000 }