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_MS     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
  53 #ifdef CONFIG_DRM_AMDGPU_CIK
  54 MODULE_FIRMWARE(FIRMWARE_BONAIRE);
  55 MODULE_FIRMWARE(FIRMWARE_KABINI);
  56 MODULE_FIRMWARE(FIRMWARE_KAVERI);
  57 MODULE_FIRMWARE(FIRMWARE_HAWAII);
  58 MODULE_FIRMWARE(FIRMWARE_MULLINS);
  59 #endif
  60 MODULE_FIRMWARE(FIRMWARE_TONGA);
  61 MODULE_FIRMWARE(FIRMWARE_CARRIZO);
  62 MODULE_FIRMWARE(FIRMWARE_FIJI);
  63
  64 static void amdgpu_vce_idle_work_handler(struct work_struct *work);
  65
  66 /**
  67  * amdgpu_vce_init - allocate memory, load vce firmware
  68  *
  69  * @adev: amdgpu_device pointer
  70  *
  71  * First step to get VCE online, allocate memory and load the firmware
  72  */
  73 int amdgpu_vce_sw_init(struct amdgpu_device *adev, unsigned long size)
  74 {
  75         const char *fw_name;
  76         const struct common_firmware_header *hdr;
  77         unsigned ucode_version, version_major, version_minor, binary_id;
  78         int i, r;
  79
  80         INIT_DELAYED_WORK(&adev->vce.idle_work, amdgpu_vce_idle_work_handler);
  81
  82         switch (adev->asic_type) {
  83 #ifdef CONFIG_DRM_AMDGPU_CIK
  84         case CHIP_BONAIRE:
  85                 fw_name = FIRMWARE_BONAIRE;
  86                 break;
  87         case CHIP_KAVERI:
  88                 fw_name = FIRMWARE_KAVERI;
  89                 break;
  90         case CHIP_KABINI:
  91                 fw_name = FIRMWARE_KABINI;
  92                 break;
  93         case CHIP_HAWAII:
  94                 fw_name = FIRMWARE_HAWAII;
  95                 break;
  96         case CHIP_MULLINS:
  97                 fw_name = FIRMWARE_MULLINS;
  98                 break;
  99 #endif
 100         case CHIP_TONGA:
 101                 fw_name = FIRMWARE_TONGA;
 102                 break;
 103         case CHIP_CARRIZO:
 104                 fw_name = FIRMWARE_CARRIZO;
 105                 break;
 106         case CHIP_FIJI:
 107                 fw_name = FIRMWARE_FIJI;
 108                 break;
 109
 110         default:
 111                 return -EINVAL;
 112         }
 113
 114         r = request_firmware(&adev->vce.fw, fw_name, adev->dev);
 115         if (r) {
 116                 dev_err(adev->dev, "amdgpu_vce: Can't load firmware \"%s\"\n",
 117                         fw_name);
 118                 return r;
 119         }
 120
 121         r = amdgpu_ucode_validate(adev->vce.fw);
 122         if (r) {
 123                 dev_err(adev->dev, "amdgpu_vce: Can't validate firmware \"%s\"\n",
 124                         fw_name);
 125                 release_firmware(adev->vce.fw);
 126                 adev->vce.fw = NULL;
 127                 return r;
 128         }
 129
 130         hdr = (const struct common_firmware_header *)adev->vce.fw->data;
 131
 132         ucode_version = le32_to_cpu(hdr->ucode_version);
 133         version_major = (ucode_version >> 20) & 0xfff;
 134         version_minor = (ucode_version >> 8) & 0xfff;
 135         binary_id = ucode_version & 0xff;
 136         DRM_INFO("Found VCE firmware Version: %hhd.%hhd Binary ID: %hhd\n",
 137                 version_major, version_minor, binary_id);
 138         adev->vce.fw_version = ((version_major << 24) | (version_minor << 16) |
 139                                 (binary_id << 8));
 140
 141         /* allocate firmware, stack and heap BO */
 142
 143         r = amdgpu_bo_create(adev, size, PAGE_SIZE, true,
 144                              AMDGPU_GEM_DOMAIN_VRAM,
 145                              AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
 146                              NULL, NULL, &adev->vce.vcpu_bo);
 147         if (r) {
 148                 dev_err(adev->dev, "(%d) failed to allocate VCE bo\n", r);
 149                 return r;
 150         }
 151
 152         r = amdgpu_bo_reserve(adev->vce.vcpu_bo, false);
 153         if (r) {
 154                 amdgpu_bo_unref(&adev->vce.vcpu_bo);
 155                 dev_err(adev->dev, "(%d) failed to reserve VCE bo\n", r);
 156                 return r;
 157         }
 158
 159         r = amdgpu_bo_pin(adev->vce.vcpu_bo, AMDGPU_GEM_DOMAIN_VRAM,
 160                           &adev->vce.gpu_addr);
 161         amdgpu_bo_unreserve(adev->vce.vcpu_bo);
 162         if (r) {
 163                 amdgpu_bo_unref(&adev->vce.vcpu_bo);
 164                 dev_err(adev->dev, "(%d) VCE bo pin failed\n", r);
 165                 return r;
 166         }
 167
 168         for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
 169                 atomic_set(&adev->vce.handles[i], 0);
 170                 adev->vce.filp[i] = NULL;
 171         }
 172
 173         return 0;
 174 }
 175
 176 /**
 177  * amdgpu_vce_fini - free memory
 178  *
 179  * @adev: amdgpu_device pointer
 180  *
 181  * Last step on VCE teardown, free firmware memory
 182  */
 183 int amdgpu_vce_sw_fini(struct amdgpu_device *adev)
 184 {
 185         if (adev->vce.vcpu_bo == NULL)
 186                 return 0;
 187
 188         amdgpu_bo_unref(&adev->vce.vcpu_bo);
 189
 190         amdgpu_ring_fini(&adev->vce.ring[0]);
 191         amdgpu_ring_fini(&adev->vce.ring[1]);
 192
 193         release_firmware(adev->vce.fw);
 194
 195         return 0;
 196 }
 197
 198 /**
 199  * amdgpu_vce_suspend - unpin VCE fw memory
 200  *
 201  * @adev: amdgpu_device pointer
 202  *
 203  */
 204 int amdgpu_vce_suspend(struct amdgpu_device *adev)
 205 {
 206         int i;
 207
 208         if (adev->vce.vcpu_bo == NULL)
 209                 return 0;
 210
 211         for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i)
 212                 if (atomic_read(&adev->vce.handles[i]))
 213                         break;
 214
 215         if (i == AMDGPU_MAX_VCE_HANDLES)
 216                 return 0;
 217
 218         /* TODO: suspending running encoding sessions isn't supported */
 219         return -EINVAL;
 220 }
 221
 222 /**
 223  * amdgpu_vce_resume - pin VCE fw memory
 224  *
 225  * @adev: amdgpu_device pointer
 226  *
 227  */
 228 int amdgpu_vce_resume(struct amdgpu_device *adev)
 229 {
 230         void *cpu_addr;
 231         const struct common_firmware_header *hdr;
 232         unsigned offset;
 233         int r;
 234
 235         if (adev->vce.vcpu_bo == NULL)
 236                 return -EINVAL;
 237
 238         r = amdgpu_bo_reserve(adev->vce.vcpu_bo, false);
 239         if (r) {
 240                 dev_err(adev->dev, "(%d) failed to reserve VCE bo\n", r);
 241                 return r;
 242         }
 243
 244         r = amdgpu_bo_kmap(adev->vce.vcpu_bo, &cpu_addr);
 245         if (r) {
 246                 amdgpu_bo_unreserve(adev->vce.vcpu_bo);
 247                 dev_err(adev->dev, "(%d) VCE map failed\n", r);
 248                 return r;
 249         }
 250
 251         hdr = (const struct common_firmware_header *)adev->vce.fw->data;
 252         offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
 253         memcpy(cpu_addr, (adev->vce.fw->data) + offset,
 254                 (adev->vce.fw->size) - offset);
 255
 256         amdgpu_bo_kunmap(adev->vce.vcpu_bo);
 257
 258         amdgpu_bo_unreserve(adev->vce.vcpu_bo);
 259
 260         return 0;
 261 }
 262
 263 /**
 264  * amdgpu_vce_idle_work_handler - power off VCE
 265  *
 266  * @work: pointer to work structure
 267  *
 268  * power of VCE when it's not used any more
 269  */
 270 static void amdgpu_vce_idle_work_handler(struct work_struct *work)
 271 {
 272         struct amdgpu_device *adev =
 273                 container_of(work, struct amdgpu_device, vce.idle_work.work);
 274
 275         if ((amdgpu_fence_count_emitted(&adev->vce.ring[0]) == 0) &&
 276             (amdgpu_fence_count_emitted(&adev->vce.ring[1]) == 0)) {
 277                 if (adev->pm.dpm_enabled) {
 278                         amdgpu_dpm_enable_vce(adev, false);
 279                 } else {
 280                         amdgpu_asic_set_vce_clocks(adev, 0, 0);
 281                 }
 282         } else {
 283                 schedule_delayed_work(&adev->vce.idle_work,
 284                                       msecs_to_jiffies(VCE_IDLE_TIMEOUT_MS));
 285         }
 286 }
 287
 288 /**
 289  * amdgpu_vce_note_usage - power up VCE
 290  *
 291  * @adev: amdgpu_device pointer
 292  *
 293  * Make sure VCE is powerd up when we want to use it
 294  */
 295 static void amdgpu_vce_note_usage(struct amdgpu_device *adev)
 296 {
 297         bool streams_changed = false;
 298         bool set_clocks = !cancel_delayed_work_sync(&adev->vce.idle_work);
 299         set_clocks &= schedule_delayed_work(&adev->vce.idle_work,
 300                                             msecs_to_jiffies(VCE_IDLE_TIMEOUT_MS));
 301
 302         if (adev->pm.dpm_enabled) {
 303                 /* XXX figure out if the streams changed */
 304                 streams_changed = false;
 305         }
 306
 307         if (set_clocks || streams_changed) {
 308                 if (adev->pm.dpm_enabled) {
 309                         amdgpu_dpm_enable_vce(adev, true);
 310                 } else {
 311                         amdgpu_asic_set_vce_clocks(adev, 53300, 40000);
 312                 }
 313         }
 314 }
 315
 316 /**
 317  * amdgpu_vce_free_handles - free still open VCE handles
 318  *
 319  * @adev: amdgpu_device pointer
 320  * @filp: drm file pointer
 321  *
 322  * Close all VCE handles still open by this file pointer
 323  */
 324 void amdgpu_vce_free_handles(struct amdgpu_device *adev, struct drm_file *filp)
 325 {
 326         struct amdgpu_ring *ring = &adev->vce.ring[0];
 327         int i, r;
 328         for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
 329                 uint32_t handle = atomic_read(&adev->vce.handles[i]);
 330                 if (!handle || adev->vce.filp[i] != filp)
 331                         continue;
 332
 333                 amdgpu_vce_note_usage(adev);
 334
 335                 r = amdgpu_vce_get_destroy_msg(ring, handle, NULL);
 336                 if (r)
 337                         DRM_ERROR("Error destroying VCE handle (%d)!\n", r);
 338
 339                 adev->vce.filp[i] = NULL;
 340                 atomic_set(&adev->vce.handles[i], 0);
 341         }
 342 }
 343
 344 static int amdgpu_vce_free_job(
 345         struct amdgpu_job *job)
 346 {
 347         amdgpu_ib_free(job->adev, job->ibs);
 348         kfree(job->ibs);
 349         return 0;
 350 }
 351
 352 /**
 353  * amdgpu_vce_get_create_msg - generate a VCE create msg
 354  *
 355  * @adev: amdgpu_device pointer
 356  * @ring: ring we should submit the msg to
 357  * @handle: VCE session handle to use
 358  * @fence: optional fence to return
 359  *
 360  * Open up a stream for HW test
 361  */
 362 int amdgpu_vce_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
 363                               struct fence **fence)
 364 {
 365         const unsigned ib_size_dw = 1024;
 366         struct amdgpu_ib *ib = NULL;
 367         struct fence *f = NULL;
 368         struct amdgpu_device *adev = ring->adev;
 369         uint64_t dummy;
 370         int i, r;
 371
 372         ib = kzalloc(sizeof(struct amdgpu_ib), GFP_KERNEL);
 373         if (!ib)
 374                 return -ENOMEM;
 375         r = amdgpu_ib_get(ring, NULL, ib_size_dw * 4, ib);
 376         if (r) {
 377                 DRM_ERROR("amdgpu: failed to get ib (%d).\n", r);
 378                 kfree(ib);
 379                 return r;
 380         }
 381
 382         dummy = ib->gpu_addr + 1024;
 383
 384         /* stitch together an VCE create msg */
 385         ib->length_dw = 0;
 386         ib->ptr[ib->length_dw++] = 0x0000000c; /* len */
 387         ib->ptr[ib->length_dw++] = 0x00000001; /* session cmd */
 388         ib->ptr[ib->length_dw++] = handle;
 389
 390         ib->ptr[ib->length_dw++] = 0x00000030; /* len */
 391         ib->ptr[ib->length_dw++] = 0x01000001; /* create cmd */
 392         ib->ptr[ib->length_dw++] = 0x00000000;
 393         ib->ptr[ib->length_dw++] = 0x00000042;
 394         ib->ptr[ib->length_dw++] = 0x0000000a;
 395         ib->ptr[ib->length_dw++] = 0x00000001;
 396         ib->ptr[ib->length_dw++] = 0x00000080;
 397         ib->ptr[ib->length_dw++] = 0x00000060;
 398         ib->ptr[ib->length_dw++] = 0x00000100;
 399         ib->ptr[ib->length_dw++] = 0x00000100;
 400         ib->ptr[ib->length_dw++] = 0x0000000c;
 401         ib->ptr[ib->length_dw++] = 0x00000000;
 402
 403         ib->ptr[ib->length_dw++] = 0x00000014; /* len */
 404         ib->ptr[ib->length_dw++] = 0x05000005; /* feedback buffer */
 405         ib->ptr[ib->length_dw++] = upper_32_bits(dummy);
 406         ib->ptr[ib->length_dw++] = dummy;
 407         ib->ptr[ib->length_dw++] = 0x00000001;
 408
 409         for (i = ib->length_dw; i < ib_size_dw; ++i)
 410                 ib->ptr[i] = 0x0;
 411
 412         r = amdgpu_sched_ib_submit_kernel_helper(adev, ring, ib, 1,
 413                                                  &amdgpu_vce_free_job,
 414                                                  AMDGPU_FENCE_OWNER_UNDEFINED,
 415                                                  &f);
 416         if (r)
 417                 goto err;
 418         if (fence)
 419                 *fence = fence_get(f);
 420         fence_put(f);
 421         if (amdgpu_enable_scheduler)
 422                 return 0;
 423 err:
 424         amdgpu_ib_free(adev, ib);
 425         kfree(ib);
 426         return r;
 427 }
 428
 429 /**
 430  * amdgpu_vce_get_destroy_msg - generate a VCE destroy msg
 431  *
 432  * @adev: amdgpu_device pointer
 433  * @ring: ring we should submit the msg to
 434  * @handle: VCE session handle to use
 435  * @fence: optional fence to return
 436  *
 437  * Close up a stream for HW test or if userspace failed to do so
 438  */
 439 int amdgpu_vce_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
 440                                struct fence **fence)
 441 {
 442         const unsigned ib_size_dw = 1024;
 443         struct amdgpu_ib *ib = NULL;
 444         struct fence *f = NULL;
 445         struct amdgpu_device *adev = ring->adev;
 446         uint64_t dummy;
 447         int i, r;
 448
 449         ib = kzalloc(sizeof(struct amdgpu_ib), GFP_KERNEL);
 450         if (!ib)
 451                 return -ENOMEM;
 452
 453         r = amdgpu_ib_get(ring, NULL, ib_size_dw * 4, ib);
 454         if (r) {
 455                 kfree(ib);
 456                 DRM_ERROR("amdgpu: failed to get ib (%d).\n", r);
 457                 return r;
 458         }
 459
 460         dummy = ib->gpu_addr + 1024;
 461
 462         /* stitch together an VCE destroy msg */
 463         ib->length_dw = 0;
 464         ib->ptr[ib->length_dw++] = 0x0000000c; /* len */
 465         ib->ptr[ib->length_dw++] = 0x00000001; /* session cmd */
 466         ib->ptr[ib->length_dw++] = handle;
 467
 468         ib->ptr[ib->length_dw++] = 0x00000014; /* len */
 469         ib->ptr[ib->length_dw++] = 0x05000005; /* feedback buffer */
 470         ib->ptr[ib->length_dw++] = upper_32_bits(dummy);
 471         ib->ptr[ib->length_dw++] = dummy;
 472         ib->ptr[ib->length_dw++] = 0x00000001;
 473
 474         ib->ptr[ib->length_dw++] = 0x00000008; /* len */
 475         ib->ptr[ib->length_dw++] = 0x02000001; /* destroy cmd */
 476
 477         for (i = ib->length_dw; i < ib_size_dw; ++i)
 478                 ib->ptr[i] = 0x0;
 479         r = amdgpu_sched_ib_submit_kernel_helper(adev, ring, ib, 1,
 480                                                  &amdgpu_vce_free_job,
 481                                                  AMDGPU_FENCE_OWNER_UNDEFINED,
 482                                                  &f);
 483         if (r)
 484                 goto err;
 485         if (fence)
 486                 *fence = fence_get(f);
 487         fence_put(f);
 488         if (amdgpu_enable_scheduler)
 489                 return 0;
 490 err:
 491         amdgpu_ib_free(adev, ib);
 492         kfree(ib);
 493         return r;
 494 }
 495
 496 /**
 497  * amdgpu_vce_cs_reloc - command submission relocation
 498  *
 499  * @p: parser context
 500  * @lo: address of lower dword
 501  * @hi: address of higher dword
 502  * @size: minimum size
 503  *
 504  * Patch relocation inside command stream with real buffer address
 505  */
 506 static int amdgpu_vce_cs_reloc(struct amdgpu_cs_parser *p, uint32_t ib_idx,
 507                                int lo, int hi, unsigned size, uint32_t index)
 508 {
 509         struct amdgpu_bo_va_mapping *mapping;
 510         struct amdgpu_ib *ib = &p->ibs[ib_idx];
 511         struct amdgpu_bo *bo;
 512         uint64_t addr;
 513
 514         if (index == 0xffffffff)
 515                 index = 0;
 516
 517         addr = ((uint64_t)amdgpu_get_ib_value(p, ib_idx, lo)) |
 518                ((uint64_t)amdgpu_get_ib_value(p, ib_idx, hi)) << 32;
 519         addr += ((uint64_t)size) * ((uint64_t)index);
 520
 521         mapping = amdgpu_cs_find_mapping(p, addr, &bo);
 522         if (mapping == NULL) {
 523                 DRM_ERROR("Can't find BO for addr 0x%010Lx %d %d %d %d\n",
 524                           addr, lo, hi, size, index);
 525                 return -EINVAL;
 526         }
 527
 528         if ((addr + (uint64_t)size) >
 529             ((uint64_t)mapping->it.last + 1) * AMDGPU_GPU_PAGE_SIZE) {
 530                 DRM_ERROR("BO to small for addr 0x%010Lx %d %d\n",
 531                           addr, lo, hi);
 532                 return -EINVAL;
 533         }
 534
 535         addr -= ((uint64_t)mapping->it.start) * AMDGPU_GPU_PAGE_SIZE;
 536         addr += amdgpu_bo_gpu_offset(bo);
 537         addr -= ((uint64_t)size) * ((uint64_t)index);
 538
 539         ib->ptr[lo] = addr & 0xFFFFFFFF;
 540         ib->ptr[hi] = addr >> 32;
 541
 542         return 0;
 543 }
 544
 545 /**
 546  * amdgpu_vce_validate_handle - validate stream handle
 547  *
 548  * @p: parser context
 549  * @handle: handle to validate
 550  * @allocated: allocated a new handle?
 551  *
 552  * Validates the handle and return the found session index or -EINVAL
 553  * we we don't have another free session index.
 554  */
 555 static int amdgpu_vce_validate_handle(struct amdgpu_cs_parser *p,
 556                                       uint32_t handle, bool *allocated)
 557 {
 558         unsigned i;
 559
 560         *allocated = false;
 561
 562         /* validate the handle */
 563         for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
 564                 if (atomic_read(&p->adev->vce.handles[i]) == handle) {
 565                         if (p->adev->vce.filp[i] != p->filp) {
 566                                 DRM_ERROR("VCE handle collision detected!\n");
 567                                 return -EINVAL;
 568                         }
 569                         return i;
 570                 }
 571         }
 572
 573         /* handle not found try to alloc a new one */
 574         for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
 575                 if (!atomic_cmpxchg(&p->adev->vce.handles[i], 0, handle)) {
 576                         p->adev->vce.filp[i] = p->filp;
 577                         p->adev->vce.img_size[i] = 0;
 578                         *allocated = true;
 579                         return i;
 580                 }
 581         }
 582
 583         DRM_ERROR("No more free VCE handles!\n");
 584         return -EINVAL;
 585 }
 586
 587 /**
 588  * amdgpu_vce_cs_parse - parse and validate the command stream
 589  *
 590  * @p: parser context
 591  *
 592  */
 593 int amdgpu_vce_ring_parse_cs(struct amdgpu_cs_parser *p, uint32_t ib_idx)
 594 {
 595         struct amdgpu_ib *ib = &p->ibs[ib_idx];
 596         unsigned fb_idx = 0, bs_idx = 0;
 597         int session_idx = -1;
 598         bool destroyed = false;
 599         bool created = false;
 600         bool allocated = false;
 601         uint32_t tmp, handle = 0;
 602         uint32_t *size = &tmp;
 603         int i, r = 0, idx = 0;
 604
 605         amdgpu_vce_note_usage(p->adev);
 606
 607         while (idx < ib->length_dw) {
 608                 uint32_t len = amdgpu_get_ib_value(p, ib_idx, idx);
 609                 uint32_t cmd = amdgpu_get_ib_value(p, ib_idx, idx + 1);
 610
 611                 if ((len < 8) || (len & 3)) {
 612                         DRM_ERROR("invalid VCE command length (%d)!\n", len);
 613                         r = -EINVAL;
 614                         goto out;
 615                 }
 616
 617                 if (destroyed) {
 618                         DRM_ERROR("No other command allowed after destroy!\n");
 619                         r = -EINVAL;
 620                         goto out;
 621                 }
 622
 623                 switch (cmd) {
 624                 case 0x00000001: // session
 625                         handle = amdgpu_get_ib_value(p, ib_idx, idx + 2);
 626                         session_idx = amdgpu_vce_validate_handle(p, handle,
 627                                                                  &allocated);
 628                         if (session_idx < 0)
 629                                 return session_idx;
 630                         size = &p->adev->vce.img_size[session_idx];
 631                         break;
 632
 633                 case 0x00000002: // task info
 634                         fb_idx = amdgpu_get_ib_value(p, ib_idx, idx + 6);
 635                         bs_idx = amdgpu_get_ib_value(p, ib_idx, idx + 7);
 636                         break;
 637
 638                 case 0x01000001: // create
 639                         created = true;
 640                         if (!allocated) {
 641                                 DRM_ERROR("Handle already in use!\n");
 642                                 r = -EINVAL;
 643                                 goto out;
 644                         }
 645
 646                         *size = amdgpu_get_ib_value(p, ib_idx, idx + 8) *
 647                                 amdgpu_get_ib_value(p, ib_idx, idx + 10) *
 648                                 8 * 3 / 2;
 649                         break;
 650
 651                 case 0x04000001: // config extension
 652                 case 0x04000002: // pic control
 653                 case 0x04000005: // rate control
 654                 case 0x04000007: // motion estimation
 655                 case 0x04000008: // rdo
 656                 case 0x04000009: // vui
 657                 case 0x05000002: // auxiliary buffer
 658                         break;
 659
 660                 case 0x03000001: // encode
 661                         r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 10, idx + 9,
 662                                                 *size, 0);
 663                         if (r)
 664                                 goto out;
 665
 666                         r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 12, idx + 11,
 667                                                 *size / 3, 0);
 668                         if (r)
 669                                 goto out;
 670                         break;
 671
 672                 case 0x02000001: // destroy
 673                         destroyed = true;
 674                         break;
 675
 676                 case 0x05000001: // context buffer
 677                         r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 3, idx + 2,
 678                                                 *size * 2, 0);
 679                         if (r)
 680                                 goto out;
 681                         break;
 682
 683                 case 0x05000004: // video bitstream buffer
 684                         tmp = amdgpu_get_ib_value(p, ib_idx, idx + 4);
 685                         r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 3, idx + 2,
 686                                                 tmp, bs_idx);
 687                         if (r)
 688                                 goto out;
 689                         break;
 690
 691                 case 0x05000005: // feedback buffer
 692                         r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 3, idx + 2,
 693                                                 4096, fb_idx);
 694                         if (r)
 695                                 goto out;
 696                         break;
 697
 698                 default:
 699                         DRM_ERROR("invalid VCE command (0x%x)!\n", cmd);
 700                         r = -EINVAL;
 701                         goto out;
 702                 }
 703
 704                 if (session_idx == -1) {
 705                         DRM_ERROR("no session command at start of IB\n");
 706                         r = -EINVAL;
 707                         goto out;
 708                 }
 709
 710                 idx += len / 4;
 711         }
 712
 713         if (allocated && !created) {
 714                 DRM_ERROR("New session without create command!\n");
 715                 r = -ENOENT;
 716         }
 717
 718 out:
 719         if ((!r && destroyed) || (r && allocated)) {
 720                 /*
 721                  * IB contains a destroy msg or we have allocated an
 722                  * handle and got an error, anyway free the handle
 723                  */
 724                 for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i)
 725                         atomic_cmpxchg(&p->adev->vce.handles[i], handle, 0);
 726         }
 727
 728         return r;
 729 }
 730
 731 /**
 732  * amdgpu_vce_ring_emit_semaphore - emit a semaphore command
 733  *
 734  * @ring: engine to use
 735  * @semaphore: address of semaphore
 736  * @emit_wait: true=emit wait, false=emit signal
 737  *
 738  */
 739 bool amdgpu_vce_ring_emit_semaphore(struct amdgpu_ring *ring,
 740                                     struct amdgpu_semaphore *semaphore,
 741                                     bool emit_wait)
 742 {
 743         uint64_t addr = semaphore->gpu_addr;
 744
 745         amdgpu_ring_write(ring, VCE_CMD_SEMAPHORE);
 746         amdgpu_ring_write(ring, (addr >> 3) & 0x000FFFFF);
 747         amdgpu_ring_write(ring, (addr >> 23) & 0x000FFFFF);
 748         amdgpu_ring_write(ring, 0x01003000 | (emit_wait ? 1 : 0));
 749         if (!emit_wait)
 750                 amdgpu_ring_write(ring, VCE_CMD_END);
 751
 752         return true;
 753 }
 754
 755 /**
 756  * amdgpu_vce_ring_emit_ib - execute indirect buffer
 757  *
 758  * @ring: engine to use
 759  * @ib: the IB to execute
 760  *
 761  */
 762 void amdgpu_vce_ring_emit_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
 763 {
 764         amdgpu_ring_write(ring, VCE_CMD_IB);
 765         amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
 766         amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
 767         amdgpu_ring_write(ring, ib->length_dw);
 768 }
 769
 770 /**
 771  * amdgpu_vce_ring_emit_fence - add a fence command to the ring
 772  *
 773  * @ring: engine to use
 774  * @fence: the fence
 775  *
 776  */
 777 void amdgpu_vce_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
 778                                 unsigned flags)
 779 {
 780         WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
 781
 782         amdgpu_ring_write(ring, VCE_CMD_FENCE);
 783         amdgpu_ring_write(ring, addr);
 784         amdgpu_ring_write(ring, upper_32_bits(addr));
 785         amdgpu_ring_write(ring, seq);
 786         amdgpu_ring_write(ring, VCE_CMD_TRAP);
 787         amdgpu_ring_write(ring, VCE_CMD_END);
 788 }
 789
 790 /**
 791  * amdgpu_vce_ring_test_ring - test if VCE ring is working
 792  *
 793  * @ring: the engine to test on
 794  *
 795  */
 796 int amdgpu_vce_ring_test_ring(struct amdgpu_ring *ring)
 797 {
 798         struct amdgpu_device *adev = ring->adev;
 799         uint32_t rptr = amdgpu_ring_get_rptr(ring);
 800         unsigned i;
 801         int r;
 802
 803         r = amdgpu_ring_lock(ring, 16);
 804         if (r) {
 805                 DRM_ERROR("amdgpu: vce failed to lock ring %d (%d).\n",
 806                           ring->idx, r);
 807                 return r;
 808         }
 809         amdgpu_ring_write(ring, VCE_CMD_END);
 810         amdgpu_ring_unlock_commit(ring);
 811
 812         for (i = 0; i < adev->usec_timeout; i++) {
 813                 if (amdgpu_ring_get_rptr(ring) != rptr)
 814                         break;
 815                 DRM_UDELAY(1);
 816         }
 817
 818         if (i < adev->usec_timeout) {
 819                 DRM_INFO("ring test on %d succeeded in %d usecs\n",
 820                          ring->idx, i);
 821         } else {
 822                 DRM_ERROR("amdgpu: ring %d test failed\n",
 823                           ring->idx);
 824                 r = -ETIMEDOUT;
 825         }
 826
 827         return r;
 828 }
 829
 830 /**
 831  * amdgpu_vce_ring_test_ib - test if VCE IBs are working
 832  *
 833  * @ring: the engine to test on
 834  *
 835  */
 836 int amdgpu_vce_ring_test_ib(struct amdgpu_ring *ring)
 837 {
 838         struct fence *fence = NULL;
 839         int r;
 840
 841         /* skip vce ring1 ib test for now, since it's not reliable */
 842         if (ring == &ring->adev->vce.ring[1])
 843                 return 0;
 844
 845         r = amdgpu_vce_get_create_msg(ring, 1, NULL);
 846         if (r) {
 847                 DRM_ERROR("amdgpu: failed to get create msg (%d).\n", r);
 848                 goto error;
 849         }
 850
 851         r = amdgpu_vce_get_destroy_msg(ring, 1, &fence);
 852         if (r) {
 853                 DRM_ERROR("amdgpu: failed to get destroy ib (%d).\n", r);
 854                 goto error;
 855         }
 856
 857         r = fence_wait(fence, false);
 858         if (r) {
 859                 DRM_ERROR("amdgpu: fence wait failed (%d).\n", r);
 860         } else {
 861                 DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
 862         }
 863 error:
 864         fence_put(fence);
 865         return r;
 866 }