LXR linux/drivers/gpu/drm/radeon/radeon

   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
  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 "radeon/TAHITI_vce.bin"
  42#define FIRMWARE_BONAIRE        "radeon/BONAIRE_vce.bin"
  43
  44MODULE_FIRMWARE(FIRMWARE_TAHITI);
  45MODULE_FIRMWARE(FIRMWARE_BONAIRE);
  46
  47static 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 */
  56int 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->size - 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 (sscanf(c, "%2hhd.%2hhd.%2hhd]", &start, &mid, &end) != 3)
 108                return -EINVAL;
 109
 110        /* search for feedback version */
 111
 112        size = rdev->vce_fw->size - 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 (sscanf(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 */
 181void 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 */
 197int 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 */
 221int 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->size);
 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 */
 262static 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 */
 287void 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 */
 316void 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 */
 346int 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 */
 413int 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 */
 470int 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 %llX!\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 */
 519static 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 */
 557int 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
 673out:
 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 */
 695bool 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 */
 719void 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 */
 735void 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 */
 756int 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                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 */
 796int 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        }
 824error:
 825        radeon_fence_unref(&fence);
 826        return r;
 827}
 828