sys/dev/drm/radeon/radeon_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 "radeon.h"
  34 #include "radeon_asic.h"
  35 #include "sid.h"
  36
  37 /* 1 second timeout */
  38 #define VCE_IDLE_TIMEOUT_MS     1000
  39
  40 /* Firmware Names */
  41 #define FIRMWARE_TAHITI         "radeonkmsfw_TAHITI_vce"
  42 #define FIRMWARE_BONAIRE        "radeonkmsfw_BONAIRE_vce"
  43
  44 MODULE_FIRMWARE(FIRMWARE_TAHITI);
  45 MODULE_FIRMWARE(FIRMWARE_BONAIRE);
  46
  47 static void radeon_vce_idle_work_handler(struct work_struct *work);
  48
  49 /**
  50  * radeon_vce_init - allocate memory, load vce firmware
  51  *
  52  * @rdev: radeon_device pointer
  53  *
  54  * First step to get VCE online, allocate memory and load the firmware
  55  */
  56 int radeon_vce_init(struct radeon_device *rdev)
  57 {
  58         static const char *fw_version = "[ATI LIB=VCEFW,";
  59         static const char *fb_version = "[ATI LIB=VCEFWSTATS,";
  60         unsigned long size;
  61         const char *fw_name, *c;
  62         uint8_t start, mid, end;
  63         int i, r;
  64
  65         INIT_DELAYED_WORK(&rdev->vce.idle_work, radeon_vce_idle_work_handler);
  66
  67         switch (rdev->family) {
  68         case CHIP_TAHITI:
  69         case CHIP_PITCAIRN:
  70         case CHIP_VERDE:
  71         case CHIP_OLAND:
  72         case CHIP_ARUBA:
  73                 fw_name = FIRMWARE_TAHITI;
  74                 break;
  75
  76         case CHIP_BONAIRE:
  77         case CHIP_KAVERI:
  78         case CHIP_KABINI:
  79         case CHIP_HAWAII:
  80         case CHIP_MULLINS:
  81                 fw_name = FIRMWARE_BONAIRE;
  82                 break;
  83
  84         default:
  85                 return -EINVAL;
  86         }
  87
  88         r = request_firmware(&rdev->vce_fw, fw_name, rdev->dev);
  89         if (r) {
  90                 dev_err(rdev->dev, "radeon_vce: Can't load firmware \"%s\"\n",
  91                         fw_name);
  92                 return r;
  93         }
  94
  95         /* search for firmware version */
  96
  97         size = rdev->vce_fw->datasize - strlen(fw_version) - 9;
  98         c = rdev->vce_fw->data;
  99         for (;size > 0; --size, ++c)
 100                 if (strncmp(c, fw_version, strlen(fw_version)) == 0)
 101                         break;
 102
 103         if (size == 0)
 104                 return -EINVAL;
 105
 106         c += strlen(fw_version);
 107         if (ksscanf(c, "%2hhd.%2hhd.%2hhd]", &start, &mid, &end) != 3)
 108                 return -EINVAL;
 109
 110         /* search for feedback version */
 111
 112         size = rdev->vce_fw->datasize - strlen(fb_version) - 3;
 113         c = rdev->vce_fw->data;
 114         for (;size > 0; --size, ++c)
 115                 if (strncmp(c, fb_version, strlen(fb_version)) == 0)
 116                         break;
 117
 118         if (size == 0)
 119                 return -EINVAL;
 120
 121         c += strlen(fb_version);
 122         if (ksscanf(c, "%2u]", &rdev->vce.fb_version) != 1)
 123                 return -EINVAL;
 124
 125         DRM_INFO("Found VCE firmware/feedback version %hhd.%hhd.%hhd / %d!\n",
 126                  start, mid, end, rdev->vce.fb_version);
 127
 128         rdev->vce.fw_version = (start << 24) | (mid << 16) | (end << 8);
 129
 130         /* we can only work with this fw version for now */
 131         if ((rdev->vce.fw_version != ((40 << 24) | (2 << 16) | (2 << 8))) &&
 132             (rdev->vce.fw_version != ((50 << 24) | (0 << 16) | (1 << 8))) &&
 133             (rdev->vce.fw_version != ((50 << 24) | (1 << 16) | (2 << 8))))
 134                 return -EINVAL;
 135
 136         /* allocate firmware, stack and heap BO */
 137
 138         if (rdev->family < CHIP_BONAIRE)
 139                 size = vce_v1_0_bo_size(rdev);
 140         else
 141                 size = vce_v2_0_bo_size(rdev);
 142         r = radeon_bo_create(rdev, size, PAGE_SIZE, true,
 143                              RADEON_GEM_DOMAIN_VRAM, 0, NULL, NULL,
 144                              &rdev->vce.vcpu_bo);
 145         if (r) {
 146                 dev_err(rdev->dev, "(%d) failed to allocate VCE bo\n", r);
 147                 return r;
 148         }
 149
 150         r = radeon_bo_reserve(rdev->vce.vcpu_bo, false);
 151         if (r) {
 152                 radeon_bo_unref(&rdev->vce.vcpu_bo);
 153                 dev_err(rdev->dev, "(%d) failed to reserve VCE bo\n", r);
 154                 return r;
 155         }
 156
 157         r = radeon_bo_pin(rdev->vce.vcpu_bo, RADEON_GEM_DOMAIN_VRAM,
 158                           &rdev->vce.gpu_addr);
 159         radeon_bo_unreserve(rdev->vce.vcpu_bo);
 160         if (r) {
 161                 radeon_bo_unref(&rdev->vce.vcpu_bo);
 162                 dev_err(rdev->dev, "(%d) VCE bo pin failed\n", r);
 163                 return r;
 164         }
 165
 166         for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i) {
 167                 atomic_set(&rdev->vce.handles[i], 0);
 168                 rdev->vce.filp[i] = NULL;
 169         }
 170
 171         return 0;
 172 }
 173
 174 /**
 175  * radeon_vce_fini - free memory
 176  *
 177  * @rdev: radeon_device pointer
 178  *
 179  * Last step on VCE teardown, free firmware memory
 180  */
 181 void radeon_vce_fini(struct radeon_device *rdev)
 182 {
 183         if (rdev->vce.vcpu_bo == NULL)
 184                 return;
 185
 186         radeon_bo_unref(&rdev->vce.vcpu_bo);
 187
 188         release_firmware(rdev->vce_fw);
 189 }
 190
 191 /**
 192  * radeon_vce_suspend - unpin VCE fw memory
 193  *
 194  * @rdev: radeon_device pointer
 195  *
 196  */
 197 int radeon_vce_suspend(struct radeon_device *rdev)
 198 {
 199         int i;
 200
 201         if (rdev->vce.vcpu_bo == NULL)
 202                 return 0;
 203
 204         for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i)
 205                 if (atomic_read(&rdev->vce.handles[i]))
 206                         break;
 207
 208         if (i == RADEON_MAX_VCE_HANDLES)
 209                 return 0;
 210
 211         /* TODO: suspending running encoding sessions isn't supported */
 212         return -EINVAL;
 213 }
 214
 215 /**
 216  * radeon_vce_resume - pin VCE fw memory
 217  *
 218  * @rdev: radeon_device pointer
 219  *
 220  */
 221 int radeon_vce_resume(struct radeon_device *rdev)
 222 {
 223         void *cpu_addr;
 224         int r;
 225
 226         if (rdev->vce.vcpu_bo == NULL)
 227                 return -EINVAL;
 228
 229         r = radeon_bo_reserve(rdev->vce.vcpu_bo, false);
 230         if (r) {
 231                 dev_err(rdev->dev, "(%d) failed to reserve VCE bo\n", r);
 232                 return r;
 233         }
 234
 235         r = radeon_bo_kmap(rdev->vce.vcpu_bo, &cpu_addr);
 236         if (r) {
 237                 radeon_bo_unreserve(rdev->vce.vcpu_bo);
 238                 dev_err(rdev->dev, "(%d) VCE map failed\n", r);
 239                 return r;
 240         }
 241
 242         memset(cpu_addr, 0, radeon_bo_size(rdev->vce.vcpu_bo));
 243         if (rdev->family < CHIP_BONAIRE)
 244                 r = vce_v1_0_load_fw(rdev, cpu_addr);
 245         else
 246                 memcpy(cpu_addr, rdev->vce_fw->data, rdev->vce_fw->datasize);
 247
 248         radeon_bo_kunmap(rdev->vce.vcpu_bo);
 249
 250         radeon_bo_unreserve(rdev->vce.vcpu_bo);
 251
 252         return r;
 253 }
 254
 255 /**
 256  * radeon_vce_idle_work_handler - power off VCE
 257  *
 258  * @work: pointer to work structure
 259  *
 260  * power of VCE when it's not used any more
 261  */
 262 static void radeon_vce_idle_work_handler(struct work_struct *work)
 263 {
 264         struct radeon_device *rdev =
 265                 container_of(work, struct radeon_device, vce.idle_work.work);
 266
 267         if ((radeon_fence_count_emitted(rdev, TN_RING_TYPE_VCE1_INDEX) == 0) &&
 268             (radeon_fence_count_emitted(rdev, TN_RING_TYPE_VCE2_INDEX) == 0)) {
 269                 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
 270                         radeon_dpm_enable_vce(rdev, false);
 271                 } else {
 272                         radeon_set_vce_clocks(rdev, 0, 0);
 273                 }
 274         } else {
 275                 schedule_delayed_work(&rdev->vce.idle_work,
 276                                       msecs_to_jiffies(VCE_IDLE_TIMEOUT_MS));
 277         }
 278 }
 279
 280 /**
 281  * radeon_vce_note_usage - power up VCE
 282  *
 283  * @rdev: radeon_device pointer
 284  *
 285  * Make sure VCE is powerd up when we want to use it
 286  */
 287 void radeon_vce_note_usage(struct radeon_device *rdev)
 288 {
 289         bool streams_changed = false;
 290         bool set_clocks = !cancel_delayed_work_sync(&rdev->vce.idle_work);
 291         set_clocks &= schedule_delayed_work(&rdev->vce.idle_work,
 292                                             msecs_to_jiffies(VCE_IDLE_TIMEOUT_MS));
 293
 294         if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
 295                 /* XXX figure out if the streams changed */
 296                 streams_changed = false;
 297         }
 298
 299         if (set_clocks || streams_changed) {
 300                 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
 301                         radeon_dpm_enable_vce(rdev, true);
 302                 } else {
 303                         radeon_set_vce_clocks(rdev, 53300, 40000);
 304                 }
 305         }
 306 }
 307
 308 /**
 309  * radeon_vce_free_handles - free still open VCE handles
 310  *
 311  * @rdev: radeon_device pointer
 312  * @filp: drm file pointer
 313  *
 314  * Close all VCE handles still open by this file pointer
 315  */
 316 void radeon_vce_free_handles(struct radeon_device *rdev, struct drm_file *filp)
 317 {
 318         int i, r;
 319         for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i) {
 320                 uint32_t handle = atomic_read(&rdev->vce.handles[i]);
 321                 if (!handle || rdev->vce.filp[i] != filp)
 322                         continue;
 323
 324                 radeon_vce_note_usage(rdev);
 325
 326                 r = radeon_vce_get_destroy_msg(rdev, TN_RING_TYPE_VCE1_INDEX,
 327                                                handle, NULL);
 328                 if (r)
 329                         DRM_ERROR("Error destroying VCE handle (%d)!\n", r);
 330
 331                 rdev->vce.filp[i] = NULL;
 332                 atomic_set(&rdev->vce.handles[i], 0);
 333         }
 334 }
 335
 336 /**
 337  * radeon_vce_get_create_msg - generate a VCE create msg
 338  *
 339  * @rdev: radeon_device pointer
 340  * @ring: ring we should submit the msg to
 341  * @handle: VCE session handle to use
 342  * @fence: optional fence to return
 343  *
 344  * Open up a stream for HW test
 345  */
 346 int radeon_vce_get_create_msg(struct radeon_device *rdev, int ring,
 347                               uint32_t handle, struct radeon_fence **fence)
 348 {
 349         const unsigned ib_size_dw = 1024;
 350         struct radeon_ib ib;
 351         uint64_t dummy;
 352         int i, r;
 353
 354         r = radeon_ib_get(rdev, ring, &ib, NULL, ib_size_dw * 4);
 355         if (r) {
 356                 DRM_ERROR("radeon: failed to get ib (%d).\n", r);
 357                 return r;
 358         }
 359
 360         dummy = ib.gpu_addr + 1024;
 361
 362         /* stitch together an VCE create msg */
 363         ib.length_dw = 0;
 364         ib.ptr[ib.length_dw++] = cpu_to_le32(0x0000000c); /* len */
 365         ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000001); /* session cmd */
 366         ib.ptr[ib.length_dw++] = cpu_to_le32(handle);
 367
 368         ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000030); /* len */
 369         ib.ptr[ib.length_dw++] = cpu_to_le32(0x01000001); /* create cmd */
 370         ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000000);
 371         ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000042);
 372         ib.ptr[ib.length_dw++] = cpu_to_le32(0x0000000a);
 373         ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000001);
 374         ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000080);
 375         ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000060);
 376         ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000100);
 377         ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000100);
 378         ib.ptr[ib.length_dw++] = cpu_to_le32(0x0000000c);
 379         ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000000);
 380
 381         ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000014); /* len */
 382         ib.ptr[ib.length_dw++] = cpu_to_le32(0x05000005); /* feedback buffer */
 383         ib.ptr[ib.length_dw++] = cpu_to_le32(upper_32_bits(dummy));
 384         ib.ptr[ib.length_dw++] = cpu_to_le32(dummy);
 385         ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000001);
 386
 387         for (i = ib.length_dw; i < ib_size_dw; ++i)
 388                 ib.ptr[i] = cpu_to_le32(0x0);
 389
 390         r = radeon_ib_schedule(rdev, &ib, NULL, false);
 391         if (r) {
 392                 DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
 393         }
 394
 395         if (fence)
 396                 *fence = radeon_fence_ref(ib.fence);
 397
 398         radeon_ib_free(rdev, &ib);
 399
 400         return r;
 401 }
 402
 403 /**
 404  * radeon_vce_get_destroy_msg - generate a VCE destroy msg
 405  *
 406  * @rdev: radeon_device pointer
 407  * @ring: ring we should submit the msg to
 408  * @handle: VCE session handle to use
 409  * @fence: optional fence to return
 410  *
 411  * Close up a stream for HW test or if userspace failed to do so
 412  */
 413 int radeon_vce_get_destroy_msg(struct radeon_device *rdev, int ring,
 414                                uint32_t handle, struct radeon_fence **fence)
 415 {
 416         const unsigned ib_size_dw = 1024;
 417         struct radeon_ib ib;
 418         uint64_t dummy;
 419         int i, r;
 420
 421         r = radeon_ib_get(rdev, ring, &ib, NULL, ib_size_dw * 4);
 422         if (r) {
 423                 DRM_ERROR("radeon: failed to get ib (%d).\n", r);
 424                 return r;
 425         }
 426
 427         dummy = ib.gpu_addr + 1024;
 428
 429         /* stitch together an VCE destroy msg */
 430         ib.length_dw = 0;
 431         ib.ptr[ib.length_dw++] = cpu_to_le32(0x0000000c); /* len */
 432         ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000001); /* session cmd */
 433         ib.ptr[ib.length_dw++] = cpu_to_le32(handle);
 434
 435         ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000014); /* len */
 436         ib.ptr[ib.length_dw++] = cpu_to_le32(0x05000005); /* feedback buffer */
 437         ib.ptr[ib.length_dw++] = cpu_to_le32(upper_32_bits(dummy));
 438         ib.ptr[ib.length_dw++] = cpu_to_le32(dummy);
 439         ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000001);
 440
 441         ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000008); /* len */
 442         ib.ptr[ib.length_dw++] = cpu_to_le32(0x02000001); /* destroy cmd */
 443
 444         for (i = ib.length_dw; i < ib_size_dw; ++i)
 445                 ib.ptr[i] = cpu_to_le32(0x0);
 446
 447         r = radeon_ib_schedule(rdev, &ib, NULL, false);
 448         if (r) {
 449                 DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
 450         }
 451
 452         if (fence)
 453                 *fence = radeon_fence_ref(ib.fence);
 454
 455         radeon_ib_free(rdev, &ib);
 456
 457         return r;
 458 }
 459
 460 /**
 461  * radeon_vce_cs_reloc - command submission relocation
 462  *
 463  * @p: parser context
 464  * @lo: address of lower dword
 465  * @hi: address of higher dword
 466  * @size: size of checker for relocation buffer
 467  *
 468  * Patch relocation inside command stream with real buffer address
 469  */
 470 int radeon_vce_cs_reloc(struct radeon_cs_parser *p, int lo, int hi,
 471                         unsigned size)
 472 {
 473         struct radeon_cs_chunk *relocs_chunk;
 474         struct radeon_bo_list *reloc;
 475         uint64_t start, end, offset;
 476         unsigned idx;
 477
 478         relocs_chunk = p->chunk_relocs;
 479         offset = radeon_get_ib_value(p, lo);
 480         idx = radeon_get_ib_value(p, hi);
 481
 482         if (idx >= relocs_chunk->length_dw) {
 483                 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
 484                           idx, relocs_chunk->length_dw);
 485                 return -EINVAL;
 486         }
 487
 488         reloc = &p->relocs[(idx / 4)];
 489         start = reloc->gpu_offset;
 490         end = start + radeon_bo_size(reloc->robj);
 491         start += offset;
 492
 493         p->ib.ptr[lo] = start & 0xFFFFFFFF;
 494         p->ib.ptr[hi] = start >> 32;
 495
 496         if (end <= start) {
 497                 DRM_ERROR("invalid reloc offset %lX!\n", offset);
 498                 return -EINVAL;
 499         }
 500         if ((end - start) < size) {
 501                 DRM_ERROR("buffer to small (%d / %d)!\n",
 502                         (unsigned)(end - start), size);
 503                 return -EINVAL;
 504         }
 505
 506         return 0;
 507 }
 508
 509 /**
 510  * radeon_vce_validate_handle - validate stream handle
 511  *
 512  * @p: parser context
 513  * @handle: handle to validate
 514  * @allocated: allocated a new handle?
 515  *
 516  * Validates the handle and return the found session index or -EINVAL
 517  * we we don't have another free session index.
 518  */
 519 static int radeon_vce_validate_handle(struct radeon_cs_parser *p,
 520                                       uint32_t handle, bool *allocated)
 521 {
 522         unsigned i;
 523
 524         *allocated = false;
 525
 526         /* validate the handle */
 527         for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i) {
 528                 if (atomic_read(&p->rdev->vce.handles[i]) == handle) {
 529                         if (p->rdev->vce.filp[i] != p->filp) {
 530                                 DRM_ERROR("VCE handle collision detected!\n");
 531                                 return -EINVAL;
 532                         }
 533                         return i;
 534                 }
 535         }
 536
 537         /* handle not found try to alloc a new one */
 538         for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i) {
 539                 if (!atomic_cmpxchg(&p->rdev->vce.handles[i], 0, handle)) {
 540                         p->rdev->vce.filp[i] = p->filp;
 541                         p->rdev->vce.img_size[i] = 0;
 542                         *allocated = true;
 543                         return i;
 544                 }
 545         }
 546
 547         DRM_ERROR("No more free VCE handles!\n");
 548         return -EINVAL;
 549 }
 550
 551 /**
 552  * radeon_vce_cs_parse - parse and validate the command stream
 553  *
 554  * @p: parser context
 555  *
 556  */
 557 int radeon_vce_cs_parse(struct radeon_cs_parser *p)
 558 {
 559         int session_idx = -1;
 560         bool destroyed = false, created = false, allocated = false;
 561         uint32_t tmp, handle = 0;
 562         uint32_t *size = &tmp;
 563         int i, r = 0;
 564
 565         while (p->idx < p->chunk_ib->length_dw) {
 566                 uint32_t len = radeon_get_ib_value(p, p->idx);
 567                 uint32_t cmd = radeon_get_ib_value(p, p->idx + 1);
 568
 569                 if ((len < 8) || (len & 3)) {
 570                         DRM_ERROR("invalid VCE command length (%d)!\n", len);
 571                         r = -EINVAL;
 572                         goto out;
 573                 }
 574
 575                 if (destroyed) {
 576                         DRM_ERROR("No other command allowed after destroy!\n");
 577                         r = -EINVAL;
 578                         goto out;
 579                 }
 580
 581                 switch (cmd) {
 582                 case 0x00000001: // session
 583                         handle = radeon_get_ib_value(p, p->idx + 2);
 584                         session_idx = radeon_vce_validate_handle(p, handle,
 585                                                                  &allocated);
 586                         if (session_idx < 0)
 587                                 return session_idx;
 588                         size = &p->rdev->vce.img_size[session_idx];
 589                         break;
 590
 591                 case 0x00000002: // task info
 592                         break;
 593
 594                 case 0x01000001: // create
 595                         created = true;
 596                         if (!allocated) {
 597                                 DRM_ERROR("Handle already in use!\n");
 598                                 r = -EINVAL;
 599                                 goto out;
 600                         }
 601
 602                         *size = radeon_get_ib_value(p, p->idx + 8) *
 603                                 radeon_get_ib_value(p, p->idx + 10) *
 604                                 8 * 3 / 2;
 605                         break;
 606
 607                 case 0x04000001: // config extension
 608                 case 0x04000002: // pic control
 609                 case 0x04000005: // rate control
 610                 case 0x04000007: // motion estimation
 611                 case 0x04000008: // rdo
 612                 case 0x04000009: // vui
 613                         break;
 614
 615                 case 0x03000001: // encode
 616                         r = radeon_vce_cs_reloc(p, p->idx + 10, p->idx + 9,
 617                                                 *size);
 618                         if (r)
 619                                 goto out;
 620
 621                         r = radeon_vce_cs_reloc(p, p->idx + 12, p->idx + 11,
 622                                                 *size / 3);
 623                         if (r)
 624                                 goto out;
 625                         break;
 626
 627                 case 0x02000001: // destroy
 628                         destroyed = true;
 629                         break;
 630
 631                 case 0x05000001: // context buffer
 632                         r = radeon_vce_cs_reloc(p, p->idx + 3, p->idx + 2,
 633                                                 *size * 2);
 634                         if (r)
 635                                 goto out;
 636                         break;
 637
 638                 case 0x05000004: // video bitstream buffer
 639                         tmp = radeon_get_ib_value(p, p->idx + 4);
 640                         r = radeon_vce_cs_reloc(p, p->idx + 3, p->idx + 2,
 641                                                 tmp);
 642                         if (r)
 643                                 goto out;
 644                         break;
 645
 646                 case 0x05000005: // feedback buffer
 647                         r = radeon_vce_cs_reloc(p, p->idx + 3, p->idx + 2,
 648                                                 4096);
 649                         if (r)
 650                                 goto out;
 651                         break;
 652
 653                 default:
 654                         DRM_ERROR("invalid VCE command (0x%x)!\n", cmd);
 655                         r = -EINVAL;
 656                         goto out;
 657                 }
 658
 659                 if (session_idx == -1) {
 660                         DRM_ERROR("no session command at start of IB\n");
 661                         r = -EINVAL;
 662                         goto out;
 663                 }
 664
 665                 p->idx += len / 4;
 666         }
 667
 668         if (allocated && !created) {
 669                 DRM_ERROR("New session without create command!\n");
 670                 r = -ENOENT;
 671         }
 672
 673 out:
 674         if ((!r && destroyed) || (r && allocated)) {
 675                 /*
 676                  * IB contains a destroy msg or we have allocated an
 677                  * handle and got an error, anyway free the handle
 678                  */
 679                 for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i)
 680                         atomic_cmpxchg(&p->rdev->vce.handles[i], handle, 0);
 681         }
 682
 683         return r;
 684 }
 685
 686 /**
 687  * radeon_vce_semaphore_emit - emit a semaphore command
 688  *
 689  * @rdev: radeon_device pointer
 690  * @ring: engine to use
 691  * @semaphore: address of semaphore
 692  * @emit_wait: true=emit wait, false=emit signal
 693  *
 694  */
 695 bool radeon_vce_semaphore_emit(struct radeon_device *rdev,
 696                                struct radeon_ring *ring,
 697                                struct radeon_semaphore *semaphore,
 698                                bool emit_wait)
 699 {
 700         uint64_t addr = semaphore->gpu_addr;
 701
 702         radeon_ring_write(ring, cpu_to_le32(VCE_CMD_SEMAPHORE));
 703         radeon_ring_write(ring, cpu_to_le32((addr >> 3) & 0x000FFFFF));
 704         radeon_ring_write(ring, cpu_to_le32((addr >> 23) & 0x000FFFFF));
 705         radeon_ring_write(ring, cpu_to_le32(0x01003000 | (emit_wait ? 1 : 0)));
 706         if (!emit_wait)
 707                 radeon_ring_write(ring, cpu_to_le32(VCE_CMD_END));
 708
 709         return true;
 710 }
 711
 712 /**
 713  * radeon_vce_ib_execute - execute indirect buffer
 714  *
 715  * @rdev: radeon_device pointer
 716  * @ib: the IB to execute
 717  *
 718  */
 719 void radeon_vce_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
 720 {
 721         struct radeon_ring *ring = &rdev->ring[ib->ring];
 722         radeon_ring_write(ring, cpu_to_le32(VCE_CMD_IB));
 723         radeon_ring_write(ring, cpu_to_le32(ib->gpu_addr));
 724         radeon_ring_write(ring, cpu_to_le32(upper_32_bits(ib->gpu_addr)));
 725         radeon_ring_write(ring, cpu_to_le32(ib->length_dw));
 726 }
 727
 728 /**
 729  * radeon_vce_fence_emit - add a fence command to the ring
 730  *
 731  * @rdev: radeon_device pointer
 732  * @fence: the fence
 733  *
 734  */
 735 void radeon_vce_fence_emit(struct radeon_device *rdev,
 736                            struct radeon_fence *fence)
 737 {
 738         struct radeon_ring *ring = &rdev->ring[fence->ring];
 739         uint64_t addr = rdev->fence_drv[fence->ring].gpu_addr;
 740
 741         radeon_ring_write(ring, cpu_to_le32(VCE_CMD_FENCE));
 742         radeon_ring_write(ring, cpu_to_le32(addr));
 743         radeon_ring_write(ring, cpu_to_le32(upper_32_bits(addr)));
 744         radeon_ring_write(ring, cpu_to_le32(fence->seq));
 745         radeon_ring_write(ring, cpu_to_le32(VCE_CMD_TRAP));
 746         radeon_ring_write(ring, cpu_to_le32(VCE_CMD_END));
 747 }
 748
 749 /**
 750  * radeon_vce_ring_test - test if VCE ring is working
 751  *
 752  * @rdev: radeon_device pointer
 753  * @ring: the engine to test on
 754  *
 755  */
 756 int radeon_vce_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
 757 {
 758         uint32_t rptr = vce_v1_0_get_rptr(rdev, ring);
 759         unsigned i;
 760         int r;
 761
 762         r = radeon_ring_lock(rdev, ring, 16);
 763         if (r) {
 764                 DRM_ERROR("radeon: vce failed to lock ring %d (%d).\n",
 765                           ring->idx, r);
 766                 return r;
 767         }
 768         radeon_ring_write(ring, cpu_to_le32(VCE_CMD_END));
 769         radeon_ring_unlock_commit(rdev, ring, false);
 770
 771         for (i = 0; i < rdev->usec_timeout; i++) {
 772                 if (vce_v1_0_get_rptr(rdev, ring) != rptr)
 773                         break;
 774                 DRM_UDELAY(1);
 775         }
 776
 777         if (i < rdev->usec_timeout) {
 778                 DRM_INFO("ring test on %d succeeded in %d usecs\n",
 779                          ring->idx, i);
 780         } else {
 781                 DRM_ERROR("radeon: ring %d test failed\n",
 782                          ring->idx);
 783                 r = -ETIMEDOUT;
 784         }
 785
 786         return r;
 787 }
 788
 789 /**
 790  * radeon_vce_ib_test - test if VCE IBs are working
 791  *
 792  * @rdev: radeon_device pointer
 793  * @ring: the engine to test on
 794  *
 795  */
 796 int radeon_vce_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
 797 {
 798         struct radeon_fence *fence = NULL;
 799         int r;
 800
 801         r = radeon_vce_get_create_msg(rdev, ring->idx, 1, NULL);
 802         if (r) {
 803                 DRM_ERROR("radeon: failed to get create msg (%d).\n", r);
 804                 goto error;
 805         }
 806
 807         r = radeon_vce_get_destroy_msg(rdev, ring->idx, 1, &fence);
 808         if (r) {
 809                 DRM_ERROR("radeon: failed to get destroy ib (%d).\n", r);
 810                 goto error;
 811         }
 812
 813         r = radeon_fence_wait_timeout(fence, false, usecs_to_jiffies(
 814                 RADEON_USEC_IB_TEST_TIMEOUT));
 815         if (r < 0) {
 816                 DRM_ERROR("radeon: fence wait failed (%d).\n", r);
 817         } else if (r == 0) {
 818                 DRM_ERROR("radeon: fence wait timed out.\n");
 819                 r = -ETIMEDOUT;
 820         } else {
 821                 DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
 822                 r = 0;
 823         }
 824 error:
 825         radeon_fence_unref(&fence);
 826         return r;
 827 }