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