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