drivers/gpu/drm/radeon/radeon

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This source file includes following definitions.
radeon_uvd_init
radeon_uvd_fini
radeon_uvd_suspend
radeon_uvd_resume
radeon_uvd_force_into_uvd_segment
radeon_uvd_free_handles
radeon_uvd_cs_msg_decode
radeon_uvd_validate_codec
radeon_uvd_cs_msg
radeon_uvd_cs_reloc
radeon_uvd_cs_reg
radeon_uvd_cs_parse
radeon_uvd_send_msg
radeon_uvd_get_create_msg
radeon_uvd_get_destroy_msg
radeon_uvd_count_handles
radeon_uvd_idle_work_handler
radeon_uvd_note_usage
radeon_uvd_calc_upll_post_div
radeon_uvd_calc_upll_dividers
radeon_uvd_send_upll_ctlreq
   1 /*
   2  * Copyright 2011 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  */
  26 /*
  27  * Authors:
  28  *    Christian König <deathsimple@vodafone.de>
  29  */
  30 
  31 #include <linux/firmware.h>
  32 #include <linux/module.h>
  33 
  34 #include <drm/drm.h>
  35 
  36 #include "radeon.h"
  37 #include "radeon_ucode.h"
  38 #include "r600d.h"
  39 
  40 /* 1 second timeout */
  41 #define UVD_IDLE_TIMEOUT_MS     1000
  42 
  43 /* Firmware Names */
  44 #define FIRMWARE_R600           "radeon/R600_uvd.bin"
  45 #define FIRMWARE_RS780          "radeon/RS780_uvd.bin"
  46 #define FIRMWARE_RV770          "radeon/RV770_uvd.bin"
  47 #define FIRMWARE_RV710          "radeon/RV710_uvd.bin"
  48 #define FIRMWARE_CYPRESS        "radeon/CYPRESS_uvd.bin"
  49 #define FIRMWARE_SUMO           "radeon/SUMO_uvd.bin"
  50 #define FIRMWARE_TAHITI         "radeon/TAHITI_uvd.bin"
  51 #define FIRMWARE_BONAIRE_LEGACY "radeon/BONAIRE_uvd.bin"
  52 #define FIRMWARE_BONAIRE        "radeon/bonaire_uvd.bin"
  53 
  54 MODULE_FIRMWARE(FIRMWARE_R600);
  55 MODULE_FIRMWARE(FIRMWARE_RS780);
  56 MODULE_FIRMWARE(FIRMWARE_RV770);
  57 MODULE_FIRMWARE(FIRMWARE_RV710);
  58 MODULE_FIRMWARE(FIRMWARE_CYPRESS);
  59 MODULE_FIRMWARE(FIRMWARE_SUMO);
  60 MODULE_FIRMWARE(FIRMWARE_TAHITI);
  61 MODULE_FIRMWARE(FIRMWARE_BONAIRE_LEGACY);
  62 MODULE_FIRMWARE(FIRMWARE_BONAIRE);
  63 
  64 static void radeon_uvd_idle_work_handler(struct work_struct *work);
  65 
  66 int radeon_uvd_init(struct radeon_device *rdev)
  67 {
  68         unsigned long bo_size;
  69         const char *fw_name = NULL, *legacy_fw_name = NULL;
  70         int i, r;
  71 
  72         INIT_DELAYED_WORK(&rdev->uvd.idle_work, radeon_uvd_idle_work_handler);
  73 
  74         switch (rdev->family) {
  75         case CHIP_RV610:
  76         case CHIP_RV630:
  77         case CHIP_RV670:
  78         case CHIP_RV620:
  79         case CHIP_RV635:
  80                 legacy_fw_name = FIRMWARE_R600;
  81                 break;
  82 
  83         case CHIP_RS780:
  84         case CHIP_RS880:
  85                 legacy_fw_name = FIRMWARE_RS780;
  86                 break;
  87 
  88         case CHIP_RV770:
  89                 legacy_fw_name = FIRMWARE_RV770;
  90                 break;
  91 
  92         case CHIP_RV710:
  93         case CHIP_RV730:
  94         case CHIP_RV740:
  95                 legacy_fw_name = FIRMWARE_RV710;
  96                 break;
  97 
  98         case CHIP_CYPRESS:
  99         case CHIP_HEMLOCK:
 100         case CHIP_JUNIPER:
 101         case CHIP_REDWOOD:
 102         case CHIP_CEDAR:
 103                 legacy_fw_name = FIRMWARE_CYPRESS;
 104                 break;
 105 
 106         case CHIP_SUMO:
 107         case CHIP_SUMO2:
 108         case CHIP_PALM:
 109         case CHIP_CAYMAN:
 110         case CHIP_BARTS:
 111         case CHIP_TURKS:
 112         case CHIP_CAICOS:
 113                 legacy_fw_name = FIRMWARE_SUMO;
 114                 break;
 115 
 116         case CHIP_TAHITI:
 117         case CHIP_VERDE:
 118         case CHIP_PITCAIRN:
 119         case CHIP_ARUBA:
 120         case CHIP_OLAND:
 121                 legacy_fw_name = FIRMWARE_TAHITI;
 122                 break;
 123 
 124         case CHIP_BONAIRE:
 125         case CHIP_KABINI:
 126         case CHIP_KAVERI:
 127         case CHIP_HAWAII:
 128         case CHIP_MULLINS:
 129                 legacy_fw_name = FIRMWARE_BONAIRE_LEGACY;
 130                 fw_name = FIRMWARE_BONAIRE;
 131                 break;
 132 
 133         default:
 134                 return -EINVAL;
 135         }
 136 
 137         rdev->uvd.fw_header_present = false;
 138         rdev->uvd.max_handles = RADEON_DEFAULT_UVD_HANDLES;
 139         if (fw_name) {
 140                 /* Let's try to load the newer firmware first */
 141                 r = request_firmware(&rdev->uvd_fw, fw_name, rdev->dev);
 142                 if (r) {
 143                         dev_err(rdev->dev, "radeon_uvd: Can't load firmware \"%s\"\n",
 144                                 fw_name);
 145                 } else {
 146                         struct common_firmware_header *hdr = (void *)rdev->uvd_fw->data;
 147                         unsigned version_major, version_minor, family_id;
 148 
 149                         r = radeon_ucode_validate(rdev->uvd_fw);
 150                         if (r)
 151                                 return r;
 152 
 153                         rdev->uvd.fw_header_present = true;
 154 
 155                         family_id = le32_to_cpu(hdr->ucode_version) & 0xff;
 156                         version_major = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xff;
 157                         version_minor = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff;
 158                         DRM_INFO("Found UVD firmware Version: %hu.%hu Family ID: %hu\n",
 159                                  version_major, version_minor, family_id);
 160 
 161                         /*
 162                          * Limit the number of UVD handles depending on
 163                          * microcode major and minor versions.
 164                          */
 165                         if ((version_major >= 0x01) && (version_minor >= 0x37))
 166                                 rdev->uvd.max_handles = RADEON_MAX_UVD_HANDLES;
 167                 }
 168         }
 169 
 170         /*
 171          * In case there is only legacy firmware, or we encounter an error
 172          * while loading the new firmware, we fall back to loading the legacy
 173          * firmware now.
 174          */
 175         if (!fw_name || r) {
 176                 r = request_firmware(&rdev->uvd_fw, legacy_fw_name, rdev->dev);
 177                 if (r) {
 178                         dev_err(rdev->dev, "radeon_uvd: Can't load firmware \"%s\"\n",
 179                                 legacy_fw_name);
 180                         return r;
 181                 }
 182         }
 183 
 184         bo_size = RADEON_GPU_PAGE_ALIGN(rdev->uvd_fw->size + 8) +
 185                   RADEON_UVD_STACK_SIZE + RADEON_UVD_HEAP_SIZE +
 186                   RADEON_UVD_SESSION_SIZE * rdev->uvd.max_handles;
 187         r = radeon_bo_create(rdev, bo_size, PAGE_SIZE, true,
 188                              RADEON_GEM_DOMAIN_VRAM, 0, NULL,
 189                              NULL, &rdev->uvd.vcpu_bo);
 190         if (r) {
 191                 dev_err(rdev->dev, "(%d) failed to allocate UVD bo\n", r);
 192                 return r;
 193         }
 194 
 195         r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
 196         if (r) {
 197                 radeon_bo_unref(&rdev->uvd.vcpu_bo);
 198                 dev_err(rdev->dev, "(%d) failed to reserve UVD bo\n", r);
 199                 return r;
 200         }
 201 
 202         r = radeon_bo_pin(rdev->uvd.vcpu_bo, RADEON_GEM_DOMAIN_VRAM,
 203                           &rdev->uvd.gpu_addr);
 204         if (r) {
 205                 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 206                 radeon_bo_unref(&rdev->uvd.vcpu_bo);
 207                 dev_err(rdev->dev, "(%d) UVD bo pin failed\n", r);
 208                 return r;
 209         }
 210 
 211         r = radeon_bo_kmap(rdev->uvd.vcpu_bo, &rdev->uvd.cpu_addr);
 212         if (r) {
 213                 dev_err(rdev->dev, "(%d) UVD map failed\n", r);
 214                 return r;
 215         }
 216 
 217         radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 218 
 219         for (i = 0; i < rdev->uvd.max_handles; ++i) {
 220                 atomic_set(&rdev->uvd.handles[i], 0);
 221                 rdev->uvd.filp[i] = NULL;
 222                 rdev->uvd.img_size[i] = 0;
 223         }
 224 
 225         return 0;
 226 }
 227 
 228 void radeon_uvd_fini(struct radeon_device *rdev)
 229 {
 230         int r;
 231 
 232         if (rdev->uvd.vcpu_bo == NULL)
 233                 return;
 234 
 235         r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
 236         if (!r) {
 237                 radeon_bo_kunmap(rdev->uvd.vcpu_bo);
 238                 radeon_bo_unpin(rdev->uvd.vcpu_bo);
 239                 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 240         }
 241 
 242         radeon_bo_unref(&rdev->uvd.vcpu_bo);
 243 
 244         radeon_ring_fini(rdev, &rdev->ring[R600_RING_TYPE_UVD_INDEX]);
 245 
 246         release_firmware(rdev->uvd_fw);
 247 }
 248 
 249 int radeon_uvd_suspend(struct radeon_device *rdev)
 250 {
 251         int i, r;
 252 
 253         if (rdev->uvd.vcpu_bo == NULL)
 254                 return 0;
 255 
 256         for (i = 0; i < rdev->uvd.max_handles; ++i) {
 257                 uint32_t handle = atomic_read(&rdev->uvd.handles[i]);
 258                 if (handle != 0) {
 259                         struct radeon_fence *fence;
 260 
 261                         radeon_uvd_note_usage(rdev);
 262 
 263                         r = radeon_uvd_get_destroy_msg(rdev,
 264                                 R600_RING_TYPE_UVD_INDEX, handle, &fence);
 265                         if (r) {
 266                                 DRM_ERROR("Error destroying UVD (%d)!\n", r);
 267                                 continue;
 268                         }
 269 
 270                         radeon_fence_wait(fence, false);
 271                         radeon_fence_unref(&fence);
 272 
 273                         rdev->uvd.filp[i] = NULL;
 274                         atomic_set(&rdev->uvd.handles[i], 0);
 275                 }
 276         }
 277 
 278         return 0;
 279 }
 280 
 281 int radeon_uvd_resume(struct radeon_device *rdev)
 282 {
 283         unsigned size;
 284         void *ptr;
 285 
 286         if (rdev->uvd.vcpu_bo == NULL)
 287                 return -EINVAL;
 288 
 289         memcpy(rdev->uvd.cpu_addr, rdev->uvd_fw->data, rdev->uvd_fw->size);
 290 
 291         size = radeon_bo_size(rdev->uvd.vcpu_bo);
 292         size -= rdev->uvd_fw->size;
 293 
 294         ptr = rdev->uvd.cpu_addr;
 295         ptr += rdev->uvd_fw->size;
 296 
 297         memset(ptr, 0, size);
 298 
 299         return 0;
 300 }
 301 
 302 void radeon_uvd_force_into_uvd_segment(struct radeon_bo *rbo,
 303                                        uint32_t allowed_domains)
 304 {
 305         int i;
 306 
 307         for (i = 0; i < rbo->placement.num_placement; ++i) {
 308                 rbo->placements[i].fpfn = 0 >> PAGE_SHIFT;
 309                 rbo->placements[i].lpfn = (256 * 1024 * 1024) >> PAGE_SHIFT;
 310         }
 311 
 312         /* If it must be in VRAM it must be in the first segment as well */
 313         if (allowed_domains == RADEON_GEM_DOMAIN_VRAM)
 314                 return;
 315 
 316         /* abort if we already have more than one placement */
 317         if (rbo->placement.num_placement > 1)
 318                 return;
 319 
 320         /* add another 256MB segment */
 321         rbo->placements[1] = rbo->placements[0];
 322         rbo->placements[1].fpfn += (256 * 1024 * 1024) >> PAGE_SHIFT;
 323         rbo->placements[1].lpfn += (256 * 1024 * 1024) >> PAGE_SHIFT;
 324         rbo->placement.num_placement++;
 325         rbo->placement.num_busy_placement++;
 326 }
 327 
 328 void radeon_uvd_free_handles(struct radeon_device *rdev, struct drm_file *filp)
 329 {
 330         int i, r;
 331         for (i = 0; i < rdev->uvd.max_handles; ++i) {
 332                 uint32_t handle = atomic_read(&rdev->uvd.handles[i]);
 333                 if (handle != 0 && rdev->uvd.filp[i] == filp) {
 334                         struct radeon_fence *fence;
 335 
 336                         radeon_uvd_note_usage(rdev);
 337 
 338                         r = radeon_uvd_get_destroy_msg(rdev,
 339                                 R600_RING_TYPE_UVD_INDEX, handle, &fence);
 340                         if (r) {
 341                                 DRM_ERROR("Error destroying UVD (%d)!\n", r);
 342                                 continue;
 343                         }
 344 
 345                         radeon_fence_wait(fence, false);
 346                         radeon_fence_unref(&fence);
 347 
 348                         rdev->uvd.filp[i] = NULL;
 349                         atomic_set(&rdev->uvd.handles[i], 0);
 350                 }
 351         }
 352 }
 353 
 354 static int radeon_uvd_cs_msg_decode(uint32_t *msg, unsigned buf_sizes[])
 355 {
 356         unsigned stream_type = msg[4];
 357         unsigned width = msg[6];
 358         unsigned height = msg[7];
 359         unsigned dpb_size = msg[9];
 360         unsigned pitch = msg[28];
 361 
 362         unsigned width_in_mb = width / 16;
 363         unsigned height_in_mb = ALIGN(height / 16, 2);
 364 
 365         unsigned image_size, tmp, min_dpb_size;
 366 
 367         image_size = width * height;
 368         image_size += image_size / 2;
 369         image_size = ALIGN(image_size, 1024);
 370 
 371         switch (stream_type) {
 372         case 0: /* H264 */
 373 
 374                 /* reference picture buffer */
 375                 min_dpb_size = image_size * 17;
 376 
 377                 /* macroblock context buffer */
 378                 min_dpb_size += width_in_mb * height_in_mb * 17 * 192;
 379 
 380                 /* IT surface buffer */
 381                 min_dpb_size += width_in_mb * height_in_mb * 32;
 382                 break;
 383 
 384         case 1: /* VC1 */
 385 
 386                 /* reference picture buffer */
 387                 min_dpb_size = image_size * 3;
 388 
 389                 /* CONTEXT_BUFFER */
 390                 min_dpb_size += width_in_mb * height_in_mb * 128;
 391 
 392                 /* IT surface buffer */
 393                 min_dpb_size += width_in_mb * 64;
 394 
 395                 /* DB surface buffer */
 396                 min_dpb_size += width_in_mb * 128;
 397 
 398                 /* BP */
 399                 tmp = max(width_in_mb, height_in_mb);
 400                 min_dpb_size += ALIGN(tmp * 7 * 16, 64);
 401                 break;
 402 
 403         case 3: /* MPEG2 */
 404 
 405                 /* reference picture buffer */
 406                 min_dpb_size = image_size * 3;
 407                 break;
 408 
 409         case 4: /* MPEG4 */
 410 
 411                 /* reference picture buffer */
 412                 min_dpb_size = image_size * 3;
 413 
 414                 /* CM */
 415                 min_dpb_size += width_in_mb * height_in_mb * 64;
 416 
 417                 /* IT surface buffer */
 418                 min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64);
 419                 break;
 420 
 421         default:
 422                 DRM_ERROR("UVD codec not handled %d!\n", stream_type);
 423                 return -EINVAL;
 424         }
 425 
 426         if (width > pitch) {
 427                 DRM_ERROR("Invalid UVD decoding target pitch!\n");
 428                 return -EINVAL;
 429         }
 430 
 431         if (dpb_size < min_dpb_size) {
 432                 DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n",
 433                           dpb_size, min_dpb_size);
 434                 return -EINVAL;
 435         }
 436 
 437         buf_sizes[0x1] = dpb_size;
 438         buf_sizes[0x2] = image_size;
 439         return 0;
 440 }
 441 
 442 static int radeon_uvd_validate_codec(struct radeon_cs_parser *p,
 443                                      unsigned stream_type)
 444 {
 445         switch (stream_type) {
 446         case 0: /* H264 */
 447         case 1: /* VC1 */
 448                 /* always supported */
 449                 return 0;
 450 
 451         case 3: /* MPEG2 */
 452         case 4: /* MPEG4 */
 453                 /* only since UVD 3 */
 454                 if (p->rdev->family >= CHIP_PALM)
 455                         return 0;
 456 
 457                 /* fall through */
 458         default:
 459                 DRM_ERROR("UVD codec not supported by hardware %d!\n",
 460                           stream_type);
 461                 return -EINVAL;
 462         }
 463 }
 464 
 465 static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
 466                              unsigned offset, unsigned buf_sizes[])
 467 {
 468         int32_t *msg, msg_type, handle;
 469         unsigned img_size = 0;
 470         struct dma_fence *f;
 471         void *ptr;
 472 
 473         int i, r;
 474 
 475         if (offset & 0x3F) {
 476                 DRM_ERROR("UVD messages must be 64 byte aligned!\n");
 477                 return -EINVAL;
 478         }
 479 
 480         f = dma_resv_get_excl(bo->tbo.base.resv);
 481         if (f) {
 482                 r = radeon_fence_wait((struct radeon_fence *)f, false);
 483                 if (r) {
 484                         DRM_ERROR("Failed waiting for UVD message (%d)!\n", r);
 485                         return r;
 486                 }
 487         }
 488 
 489         r = radeon_bo_kmap(bo, &ptr);
 490         if (r) {
 491                 DRM_ERROR("Failed mapping the UVD message (%d)!\n", r);
 492                 return r;
 493         }
 494 
 495         msg = ptr + offset;
 496 
 497         msg_type = msg[1];
 498         handle = msg[2];
 499 
 500         if (handle == 0) {
 501                 DRM_ERROR("Invalid UVD handle!\n");
 502                 return -EINVAL;
 503         }
 504 
 505         switch (msg_type) {
 506         case 0:
 507                 /* it's a create msg, calc image size (width * height) */
 508                 img_size = msg[7] * msg[8];
 509 
 510                 r = radeon_uvd_validate_codec(p, msg[4]);
 511                 radeon_bo_kunmap(bo);
 512                 if (r)
 513                         return r;
 514 
 515                 /* try to alloc a new handle */
 516                 for (i = 0; i < p->rdev->uvd.max_handles; ++i) {
 517                         if (atomic_read(&p->rdev->uvd.handles[i]) == handle) {
 518                                 DRM_ERROR("Handle 0x%x already in use!\n", handle);
 519                                 return -EINVAL;
 520                         }
 521 
 522                         if (!atomic_cmpxchg(&p->rdev->uvd.handles[i], 0, handle)) {
 523                                 p->rdev->uvd.filp[i] = p->filp;
 524                                 p->rdev->uvd.img_size[i] = img_size;
 525                                 return 0;
 526                         }
 527                 }
 528 
 529                 DRM_ERROR("No more free UVD handles!\n");
 530                 return -EINVAL;
 531 
 532         case 1:
 533                 /* it's a decode msg, validate codec and calc buffer sizes */
 534                 r = radeon_uvd_validate_codec(p, msg[4]);
 535                 if (!r)
 536                         r = radeon_uvd_cs_msg_decode(msg, buf_sizes);
 537                 radeon_bo_kunmap(bo);
 538                 if (r)
 539                         return r;
 540 
 541                 /* validate the handle */
 542                 for (i = 0; i < p->rdev->uvd.max_handles; ++i) {
 543                         if (atomic_read(&p->rdev->uvd.handles[i]) == handle) {
 544                                 if (p->rdev->uvd.filp[i] != p->filp) {
 545                                         DRM_ERROR("UVD handle collision detected!\n");
 546                                         return -EINVAL;
 547                                 }
 548                                 return 0;
 549                         }
 550                 }
 551 
 552                 DRM_ERROR("Invalid UVD handle 0x%x!\n", handle);
 553                 return -ENOENT;
 554 
 555         case 2:
 556                 /* it's a destroy msg, free the handle */
 557                 for (i = 0; i < p->rdev->uvd.max_handles; ++i)
 558                         atomic_cmpxchg(&p->rdev->uvd.handles[i], handle, 0);
 559                 radeon_bo_kunmap(bo);
 560                 return 0;
 561 
 562         default:
 563 
 564                 DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
 565                 return -EINVAL;
 566         }
 567 
 568         BUG();
 569         return -EINVAL;
 570 }
 571 
 572 static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p,
 573                                int data0, int data1,
 574                                unsigned buf_sizes[], bool *has_msg_cmd)
 575 {
 576         struct radeon_cs_chunk *relocs_chunk;
 577         struct radeon_bo_list *reloc;
 578         unsigned idx, cmd, offset;
 579         uint64_t start, end;
 580         int r;
 581 
 582         relocs_chunk = p->chunk_relocs;
 583         offset = radeon_get_ib_value(p, data0);
 584         idx = radeon_get_ib_value(p, data1);
 585         if (idx >= relocs_chunk->length_dw) {
 586                 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
 587                           idx, relocs_chunk->length_dw);
 588                 return -EINVAL;
 589         }
 590 
 591         reloc = &p->relocs[(idx / 4)];
 592         start = reloc->gpu_offset;
 593         end = start + radeon_bo_size(reloc->robj);
 594         start += offset;
 595 
 596         p->ib.ptr[data0] = start & 0xFFFFFFFF;
 597         p->ib.ptr[data1] = start >> 32;
 598 
 599         cmd = radeon_get_ib_value(p, p->idx) >> 1;
 600 
 601         if (cmd < 0x4) {
 602                 if (end <= start) {
 603                         DRM_ERROR("invalid reloc offset %X!\n", offset);
 604                         return -EINVAL;
 605                 }
 606                 if ((end - start) < buf_sizes[cmd]) {
 607                         DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
 608                                   (unsigned)(end - start), buf_sizes[cmd]);
 609                         return -EINVAL;
 610                 }
 611 
 612         } else if (cmd != 0x100) {
 613                 DRM_ERROR("invalid UVD command %X!\n", cmd);
 614                 return -EINVAL;
 615         }
 616 
 617         if ((start >> 28) != ((end - 1) >> 28)) {
 618                 DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
 619                           start, end);
 620                 return -EINVAL;
 621         }
 622 
 623         /* TODO: is this still necessary on NI+ ? */
 624         if ((cmd == 0 || cmd == 0x3) &&
 625             (start >> 28) != (p->rdev->uvd.gpu_addr >> 28)) {
 626                 DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n",
 627                           start, end);
 628                 return -EINVAL;
 629         }
 630 
 631         if (cmd == 0) {
 632                 if (*has_msg_cmd) {
 633                         DRM_ERROR("More than one message in a UVD-IB!\n");
 634                         return -EINVAL;
 635                 }
 636                 *has_msg_cmd = true;
 637                 r = radeon_uvd_cs_msg(p, reloc->robj, offset, buf_sizes);
 638                 if (r)
 639                         return r;
 640         } else if (!*has_msg_cmd) {
 641                 DRM_ERROR("Message needed before other commands are send!\n");
 642                 return -EINVAL;
 643         }
 644 
 645         return 0;
 646 }
 647 
 648 static int radeon_uvd_cs_reg(struct radeon_cs_parser *p,
 649                              struct radeon_cs_packet *pkt,
 650                              int *data0, int *data1,
 651                              unsigned buf_sizes[],
 652                              bool *has_msg_cmd)
 653 {
 654         int i, r;
 655 
 656         p->idx++;
 657         for (i = 0; i <= pkt->count; ++i) {
 658                 switch (pkt->reg + i*4) {
 659                 case UVD_GPCOM_VCPU_DATA0:
 660                         *data0 = p->idx;
 661                         break;
 662                 case UVD_GPCOM_VCPU_DATA1:
 663                         *data1 = p->idx;
 664                         break;
 665                 case UVD_GPCOM_VCPU_CMD:
 666                         r = radeon_uvd_cs_reloc(p, *data0, *data1,
 667                                                 buf_sizes, has_msg_cmd);
 668                         if (r)
 669                                 return r;
 670                         break;
 671                 case UVD_ENGINE_CNTL:
 672                 case UVD_NO_OP:
 673                         break;
 674                 default:
 675                         DRM_ERROR("Invalid reg 0x%X!\n",
 676                                   pkt->reg + i*4);
 677                         return -EINVAL;
 678                 }
 679                 p->idx++;
 680         }
 681         return 0;
 682 }
 683 
 684 int radeon_uvd_cs_parse(struct radeon_cs_parser *p)
 685 {
 686         struct radeon_cs_packet pkt;
 687         int r, data0 = 0, data1 = 0;
 688 
 689         /* does the IB has a msg command */
 690         bool has_msg_cmd = false;
 691 
 692         /* minimum buffer sizes */
 693         unsigned buf_sizes[] = {
 694                 [0x00000000]    =       2048,
 695                 [0x00000001]    =       32 * 1024 * 1024,
 696                 [0x00000002]    =       2048 * 1152 * 3,
 697                 [0x00000003]    =       2048,
 698         };
 699 
 700         if (p->chunk_ib->length_dw % 16) {
 701                 DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n",
 702                           p->chunk_ib->length_dw);
 703                 return -EINVAL;
 704         }
 705 
 706         if (p->chunk_relocs == NULL) {
 707                 DRM_ERROR("No relocation chunk !\n");
 708                 return -EINVAL;
 709         }
 710 
 711 
 712         do {
 713                 r = radeon_cs_packet_parse(p, &pkt, p->idx);
 714                 if (r)
 715                         return r;
 716                 switch (pkt.type) {
 717                 case RADEON_PACKET_TYPE0:
 718                         r = radeon_uvd_cs_reg(p, &pkt, &data0, &data1,
 719                                               buf_sizes, &has_msg_cmd);
 720                         if (r)
 721                                 return r;
 722                         break;
 723                 case RADEON_PACKET_TYPE2:
 724                         p->idx += pkt.count + 2;
 725                         break;
 726                 default:
 727                         DRM_ERROR("Unknown packet type %d !\n", pkt.type);
 728                         return -EINVAL;
 729                 }
 730         } while (p->idx < p->chunk_ib->length_dw);
 731 
 732         if (!has_msg_cmd) {
 733                 DRM_ERROR("UVD-IBs need a msg command!\n");
 734                 return -EINVAL;
 735         }
 736 
 737         return 0;
 738 }
 739 
 740 static int radeon_uvd_send_msg(struct radeon_device *rdev,
 741                                int ring, uint64_t addr,
 742                                struct radeon_fence **fence)
 743 {
 744         struct radeon_ib ib;
 745         int i, r;
 746 
 747         r = radeon_ib_get(rdev, ring, &ib, NULL, 64);
 748         if (r)
 749                 return r;
 750 
 751         ib.ptr[0] = PACKET0(UVD_GPCOM_VCPU_DATA0, 0);
 752         ib.ptr[1] = addr;
 753         ib.ptr[2] = PACKET0(UVD_GPCOM_VCPU_DATA1, 0);
 754         ib.ptr[3] = addr >> 32;
 755         ib.ptr[4] = PACKET0(UVD_GPCOM_VCPU_CMD, 0);
 756         ib.ptr[5] = 0;
 757         for (i = 6; i < 16; i += 2) {
 758                 ib.ptr[i] = PACKET0(UVD_NO_OP, 0);
 759                 ib.ptr[i+1] = 0;
 760         }
 761         ib.length_dw = 16;
 762 
 763         r = radeon_ib_schedule(rdev, &ib, NULL, false);
 764 
 765         if (fence)
 766                 *fence = radeon_fence_ref(ib.fence);
 767 
 768         radeon_ib_free(rdev, &ib);
 769         return r;
 770 }
 771 
 772 /*
 773  * multiple fence commands without any stream commands in between can
 774  * crash the vcpu so just try to emmit a dummy create/destroy msg to
 775  * avoid this
 776  */
 777 int radeon_uvd_get_create_msg(struct radeon_device *rdev, int ring,
 778                               uint32_t handle, struct radeon_fence **fence)
 779 {
 780         /* we use the last page of the vcpu bo for the UVD message */
 781         uint64_t offs = radeon_bo_size(rdev->uvd.vcpu_bo) -
 782                 RADEON_GPU_PAGE_SIZE;
 783 
 784         uint32_t *msg = rdev->uvd.cpu_addr + offs;
 785         uint64_t addr = rdev->uvd.gpu_addr + offs;
 786 
 787         int r, i;
 788 
 789         r = radeon_bo_reserve(rdev->uvd.vcpu_bo, true);
 790         if (r)
 791                 return r;
 792 
 793         /* stitch together an UVD create msg */
 794         msg[0] = cpu_to_le32(0x00000de4);
 795         msg[1] = cpu_to_le32(0x00000000);
 796         msg[2] = cpu_to_le32(handle);
 797         msg[3] = cpu_to_le32(0x00000000);
 798         msg[4] = cpu_to_le32(0x00000000);
 799         msg[5] = cpu_to_le32(0x00000000);
 800         msg[6] = cpu_to_le32(0x00000000);
 801         msg[7] = cpu_to_le32(0x00000780);
 802         msg[8] = cpu_to_le32(0x00000440);
 803         msg[9] = cpu_to_le32(0x00000000);
 804         msg[10] = cpu_to_le32(0x01b37000);
 805         for (i = 11; i < 1024; ++i)
 806                 msg[i] = cpu_to_le32(0x0);
 807 
 808         r = radeon_uvd_send_msg(rdev, ring, addr, fence);
 809         radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 810         return r;
 811 }
 812 
 813 int radeon_uvd_get_destroy_msg(struct radeon_device *rdev, int ring,
 814                                uint32_t handle, struct radeon_fence **fence)
 815 {
 816         /* we use the last page of the vcpu bo for the UVD message */
 817         uint64_t offs = radeon_bo_size(rdev->uvd.vcpu_bo) -
 818                 RADEON_GPU_PAGE_SIZE;
 819 
 820         uint32_t *msg = rdev->uvd.cpu_addr + offs;
 821         uint64_t addr = rdev->uvd.gpu_addr + offs;
 822 
 823         int r, i;
 824 
 825         r = radeon_bo_reserve(rdev->uvd.vcpu_bo, true);
 826         if (r)
 827                 return r;
 828 
 829         /* stitch together an UVD destroy msg */
 830         msg[0] = cpu_to_le32(0x00000de4);
 831         msg[1] = cpu_to_le32(0x00000002);
 832         msg[2] = cpu_to_le32(handle);
 833         msg[3] = cpu_to_le32(0x00000000);
 834         for (i = 4; i < 1024; ++i)
 835                 msg[i] = cpu_to_le32(0x0);
 836 
 837         r = radeon_uvd_send_msg(rdev, ring, addr, fence);
 838         radeon_bo_unreserve(rdev->uvd.vcpu_bo);
 839         return r;
 840 }
 841 
 842 /**
 843  * radeon_uvd_count_handles - count number of open streams
 844  *
 845  * @rdev: radeon_device pointer
 846  * @sd: number of SD streams
 847  * @hd: number of HD streams
 848  *
 849  * Count the number of open SD/HD streams as a hint for power mangement
 850  */
 851 static void radeon_uvd_count_handles(struct radeon_device *rdev,
 852                                      unsigned *sd, unsigned *hd)
 853 {
 854         unsigned i;
 855 
 856         *sd = 0;
 857         *hd = 0;
 858 
 859         for (i = 0; i < rdev->uvd.max_handles; ++i) {
 860                 if (!atomic_read(&rdev->uvd.handles[i]))
 861                         continue;
 862 
 863                 if (rdev->uvd.img_size[i] >= 720*576)
 864                         ++(*hd);
 865                 else
 866                         ++(*sd);
 867         }
 868 }
 869 
 870 static void radeon_uvd_idle_work_handler(struct work_struct *work)
 871 {
 872         struct radeon_device *rdev =
 873                 container_of(work, struct radeon_device, uvd.idle_work.work);
 874 
 875         if (radeon_fence_count_emitted(rdev, R600_RING_TYPE_UVD_INDEX) == 0) {
 876                 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
 877                         radeon_uvd_count_handles(rdev, &rdev->pm.dpm.sd,
 878                                                  &rdev->pm.dpm.hd);
 879                         radeon_dpm_enable_uvd(rdev, false);
 880                 } else {
 881                         radeon_set_uvd_clocks(rdev, 0, 0);
 882                 }
 883         } else {
 884                 schedule_delayed_work(&rdev->uvd.idle_work,
 885                                       msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
 886         }
 887 }
 888 
 889 void radeon_uvd_note_usage(struct radeon_device *rdev)
 890 {
 891         bool streams_changed = false;
 892         bool set_clocks = !cancel_delayed_work_sync(&rdev->uvd.idle_work);
 893         set_clocks &= schedule_delayed_work(&rdev->uvd.idle_work,
 894                                             msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
 895 
 896         if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
 897                 unsigned hd = 0, sd = 0;
 898                 radeon_uvd_count_handles(rdev, &sd, &hd);
 899                 if ((rdev->pm.dpm.sd != sd) ||
 900                     (rdev->pm.dpm.hd != hd)) {
 901                         rdev->pm.dpm.sd = sd;
 902                         rdev->pm.dpm.hd = hd;
 903                         /* disable this for now */
 904                         /*streams_changed = true;*/
 905                 }
 906         }
 907 
 908         if (set_clocks || streams_changed) {
 909                 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
 910                         radeon_dpm_enable_uvd(rdev, true);
 911                 } else {
 912                         radeon_set_uvd_clocks(rdev, 53300, 40000);
 913                 }
 914         }
 915 }
 916 
 917 static unsigned radeon_uvd_calc_upll_post_div(unsigned vco_freq,
 918                                               unsigned target_freq,
 919                                               unsigned pd_min,
 920                                               unsigned pd_even)
 921 {
 922         unsigned post_div = vco_freq / target_freq;
 923 
 924         /* adjust to post divider minimum value */
 925         if (post_div < pd_min)
 926                 post_div = pd_min;
 927 
 928         /* we alway need a frequency less than or equal the target */
 929         if ((vco_freq / post_div) > target_freq)
 930                 post_div += 1;
 931 
 932         /* post dividers above a certain value must be even */
 933         if (post_div > pd_even && post_div % 2)
 934                 post_div += 1;
 935 
 936         return post_div;
 937 }
 938 
 939 /**
 940  * radeon_uvd_calc_upll_dividers - calc UPLL clock dividers
 941  *
 942  * @rdev: radeon_device pointer
 943  * @vclk: wanted VCLK
 944  * @dclk: wanted DCLK
 945  * @vco_min: minimum VCO frequency
 946  * @vco_max: maximum VCO frequency
 947  * @fb_factor: factor to multiply vco freq with
 948  * @fb_mask: limit and bitmask for feedback divider
 949  * @pd_min: post divider minimum
 950  * @pd_max: post divider maximum
 951  * @pd_even: post divider must be even above this value
 952  * @optimal_fb_div: resulting feedback divider
 953  * @optimal_vclk_div: resulting vclk post divider
 954  * @optimal_dclk_div: resulting dclk post divider
 955  *
 956  * Calculate dividers for UVDs UPLL (R6xx-SI, except APUs).
 957  * Returns zero on success -EINVAL on error.
 958  */
 959 int radeon_uvd_calc_upll_dividers(struct radeon_device *rdev,
 960                                   unsigned vclk, unsigned dclk,
 961                                   unsigned vco_min, unsigned vco_max,
 962                                   unsigned fb_factor, unsigned fb_mask,
 963                                   unsigned pd_min, unsigned pd_max,
 964                                   unsigned pd_even,
 965                                   unsigned *optimal_fb_div,
 966                                   unsigned *optimal_vclk_div,
 967                                   unsigned *optimal_dclk_div)
 968 {
 969         unsigned vco_freq, ref_freq = rdev->clock.spll.reference_freq;
 970 
 971         /* start off with something large */
 972         unsigned optimal_score = ~0;
 973 
 974         /* loop through vco from low to high */
 975         vco_min = max(max(vco_min, vclk), dclk);
 976         for (vco_freq = vco_min; vco_freq <= vco_max; vco_freq += 100) {
 977 
 978                 uint64_t fb_div = (uint64_t)vco_freq * fb_factor;
 979                 unsigned vclk_div, dclk_div, score;
 980 
 981                 do_div(fb_div, ref_freq);
 982 
 983                 /* fb div out of range ? */
 984                 if (fb_div > fb_mask)
 985                         break; /* it can oly get worse */
 986 
 987                 fb_div &= fb_mask;
 988 
 989                 /* calc vclk divider with current vco freq */
 990                 vclk_div = radeon_uvd_calc_upll_post_div(vco_freq, vclk,
 991                                                          pd_min, pd_even);
 992                 if (vclk_div > pd_max)
 993                         break; /* vco is too big, it has to stop */
 994 
 995                 /* calc dclk divider with current vco freq */
 996                 dclk_div = radeon_uvd_calc_upll_post_div(vco_freq, dclk,
 997                                                          pd_min, pd_even);
 998                 if (dclk_div > pd_max)
 999                         break; /* vco is too big, it has to stop */
1000 
1001                 /* calc score with current vco freq */
1002                 score = vclk - (vco_freq / vclk_div) + dclk - (vco_freq / dclk_div);
1003 
1004                 /* determine if this vco setting is better than current optimal settings */
1005                 if (score < optimal_score) {
1006                         *optimal_fb_div = fb_div;
1007                         *optimal_vclk_div = vclk_div;
1008                         *optimal_dclk_div = dclk_div;
1009                         optimal_score = score;
1010                         if (optimal_score == 0)
1011                                 break; /* it can't get better than this */
1012                 }
1013         }
1014 
1015         /* did we found a valid setup ? */
1016         if (optimal_score == ~0)
1017                 return -EINVAL;
1018 
1019         return 0;
1020 }
1021 
1022 int radeon_uvd_send_upll_ctlreq(struct radeon_device *rdev,
1023                                 unsigned cg_upll_func_cntl)
1024 {
1025         unsigned i;
1026 
1027         /* make sure UPLL_CTLREQ is deasserted */
1028         WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
1029 
1030         mdelay(10);
1031 
1032         /* assert UPLL_CTLREQ */
1033         WREG32_P(cg_upll_func_cntl, UPLL_CTLREQ_MASK, ~UPLL_CTLREQ_MASK);
1034 
1035         /* wait for CTLACK and CTLACK2 to get asserted */
1036         for (i = 0; i < 100; ++i) {
1037                 uint32_t mask = UPLL_CTLACK_MASK | UPLL_CTLACK2_MASK;
1038                 if ((RREG32(cg_upll_func_cntl) & mask) == mask)
1039                         break;
1040                 mdelay(10);
1041         }
1042 
1043         /* deassert UPLL_CTLREQ */
1044         WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
1045 
1046         if (i == 100) {
1047                 DRM_ERROR("Timeout setting UVD clocks!\n");
1048                 return -ETIMEDOUT;
1049         }
1050 
1051         return 0;
1052 }
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/gpu/drm/radeon/radeon_uvd.c

DEFINITIONS
