1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (C) 2019 Linaro Ltd. 4 * 5 * Author: Stanimir Varbanov <stanimir.varbanov@linaro.org> 6 */ 7 #include <linux/clk.h> 8 #include <linux/interconnect.h> 9 #include <linux/iopoll.h> 10 #include <linux/kernel.h> 11 #include <linux/pm_domain.h> 12 #include <linux/pm_runtime.h> 13 #include <linux/types.h> 14 #include <media/v4l2-mem2mem.h> 15 16 #include "core.h" 17 #include "hfi_parser.h" 18 #include "hfi_venus_io.h" 19 #include "pm_helpers.h" 20 21 static bool legacy_binding; 22 23 static int core_clks_get(struct venus_core *core) 24 { 25 const struct venus_resources *res = core->res; 26 struct device *dev = core->dev; 27 unsigned int i; 28 29 for (i = 0; i < res->clks_num; i++) { 30 core->clks[i] = devm_clk_get(dev, res->clks[i]); 31 if (IS_ERR(core->clks[i])) 32 return PTR_ERR(core->clks[i]); 33 } 34 35 return 0; 36 } 37 38 static int core_clks_enable(struct venus_core *core) 39 { 40 const struct venus_resources *res = core->res; 41 unsigned int i; 42 int ret; 43 44 for (i = 0; i < res->clks_num; i++) { 45 ret = clk_prepare_enable(core->clks[i]); 46 if (ret) 47 goto err; 48 } 49 50 return 0; 51 err: 52 while (i--) 53 clk_disable_unprepare(core->clks[i]); 54 55 return ret; 56 } 57 58 static void core_clks_disable(struct venus_core *core) 59 { 60 const struct venus_resources *res = core->res; 61 unsigned int i = res->clks_num; 62 63 while (i--) 64 clk_disable_unprepare(core->clks[i]); 65 } 66 67 static int core_clks_set_rate(struct venus_core *core, unsigned long freq) 68 { 69 struct clk *clk = core->clks[0]; 70 int ret; 71 72 ret = clk_set_rate(clk, freq); 73 if (ret) 74 return ret; 75 76 ret = clk_set_rate(core->vcodec0_clks[0], freq); 77 if (ret) 78 return ret; 79 80 ret = clk_set_rate(core->vcodec1_clks[0], freq); 81 if (ret) 82 return ret; 83 84 return 0; 85 } 86 87 static int vcodec_clks_get(struct venus_core *core, struct device *dev, 88 struct clk **clks, const char * const *id) 89 { 90 const struct venus_resources *res = core->res; 91 unsigned int i; 92 93 for (i = 0; i < res->vcodec_clks_num; i++) { 94 if (!id[i]) 95 continue; 96 clks[i] = devm_clk_get(dev, id[i]); 97 if (IS_ERR(clks[i])) 98 return PTR_ERR(clks[i]); 99 } 100 101 return 0; 102 } 103 104 static int vcodec_clks_enable(struct venus_core *core, struct clk **clks) 105 { 106 const struct venus_resources *res = core->res; 107 unsigned int i; 108 int ret; 109 110 for (i = 0; i < res->vcodec_clks_num; i++) { 111 ret = clk_prepare_enable(clks[i]); 112 if (ret) 113 goto err; 114 } 115 116 return 0; 117 err: 118 while (i--) 119 clk_disable_unprepare(clks[i]); 120 121 return ret; 122 } 123 124 static void vcodec_clks_disable(struct venus_core *core, struct clk **clks) 125 { 126 const struct venus_resources *res = core->res; 127 unsigned int i = res->vcodec_clks_num; 128 129 while (i--) 130 clk_disable_unprepare(clks[i]); 131 } 132 133 static u32 load_per_instance(struct venus_inst *inst) 134 { 135 u32 mbs; 136 137 if (!inst || !(inst->state >= INST_INIT && inst->state < INST_STOP)) 138 return 0; 139 140 mbs = (ALIGN(inst->width, 16) / 16) * (ALIGN(inst->height, 16) / 16); 141 142 return mbs * inst->fps; 143 } 144 145 static u32 load_per_type(struct venus_core *core, u32 session_type) 146 { 147 struct venus_inst *inst = NULL; 148 u32 mbs_per_sec = 0; 149 150 mutex_lock(&core->lock); 151 list_for_each_entry(inst, &core->instances, list) { 152 if (inst->session_type != session_type) 153 continue; 154 155 mbs_per_sec += load_per_instance(inst); 156 } 157 mutex_unlock(&core->lock); 158 159 return mbs_per_sec; 160 } 161 162 static void mbs_to_bw(struct venus_inst *inst, u32 mbs, u32 *avg, u32 *peak) 163 { 164 const struct venus_resources *res = inst->core->res; 165 const struct bw_tbl *bw_tbl; 166 unsigned int num_rows, i; 167 168 *avg = 0; 169 *peak = 0; 170 171 if (mbs == 0) 172 return; 173 174 if (inst->session_type == VIDC_SESSION_TYPE_ENC) { 175 num_rows = res->bw_tbl_enc_size; 176 bw_tbl = res->bw_tbl_enc; 177 } else if (inst->session_type == VIDC_SESSION_TYPE_DEC) { 178 num_rows = res->bw_tbl_dec_size; 179 bw_tbl = res->bw_tbl_dec; 180 } else { 181 return; 182 } 183 184 if (!bw_tbl || num_rows == 0) 185 return; 186 187 for (i = 0; i < num_rows; i++) { 188 if (mbs > bw_tbl[i].mbs_per_sec) 189 break; 190 191 if (inst->dpb_fmt & HFI_COLOR_FORMAT_10_BIT_BASE) { 192 *avg = bw_tbl[i].avg_10bit; 193 *peak = bw_tbl[i].peak_10bit; 194 } else { 195 *avg = bw_tbl[i].avg; 196 *peak = bw_tbl[i].peak; 197 } 198 } 199 } 200 201 static int load_scale_bw(struct venus_core *core) 202 { 203 struct venus_inst *inst = NULL; 204 u32 mbs_per_sec, avg, peak, total_avg = 0, total_peak = 0; 205 206 mutex_lock(&core->lock); 207 list_for_each_entry(inst, &core->instances, list) { 208 mbs_per_sec = load_per_instance(inst); 209 mbs_to_bw(inst, mbs_per_sec, &avg, &peak); 210 total_avg += avg; 211 total_peak += peak; 212 } 213 mutex_unlock(&core->lock); 214 215 dev_dbg(core->dev, "total: avg_bw: %u, peak_bw: %u\n", 216 total_avg, total_peak); 217 218 return icc_set_bw(core->video_path, total_avg, total_peak); 219 } 220 221 static int load_scale_v1(struct venus_inst *inst) 222 { 223 struct venus_core *core = inst->core; 224 const struct freq_tbl *table = core->res->freq_tbl; 225 unsigned int num_rows = core->res->freq_tbl_size; 226 unsigned long freq = table[0].freq; 227 struct device *dev = core->dev; 228 u32 mbs_per_sec; 229 unsigned int i; 230 int ret; 231 232 mbs_per_sec = load_per_type(core, VIDC_SESSION_TYPE_ENC) + 233 load_per_type(core, VIDC_SESSION_TYPE_DEC); 234 235 if (mbs_per_sec > core->res->max_load) 236 dev_warn(dev, "HW is overloaded, needed: %d max: %d\n", 237 mbs_per_sec, core->res->max_load); 238 239 if (!mbs_per_sec && num_rows > 1) { 240 freq = table[num_rows - 1].freq; 241 goto set_freq; 242 } 243 244 for (i = 0; i < num_rows; i++) { 245 if (mbs_per_sec > table[i].load) 246 break; 247 freq = table[i].freq; 248 } 249 250 set_freq: 251 252 ret = core_clks_set_rate(core, freq); 253 if (ret) { 254 dev_err(dev, "failed to set clock rate %lu (%d)\n", 255 freq, ret); 256 return ret; 257 } 258 259 ret = load_scale_bw(core); 260 if (ret) { 261 dev_err(dev, "failed to set bandwidth (%d)\n", 262 ret); 263 return ret; 264 } 265 266 return 0; 267 } 268 269 static int core_get_v1(struct device *dev) 270 { 271 struct venus_core *core = dev_get_drvdata(dev); 272 273 return core_clks_get(core); 274 } 275 276 static int core_power_v1(struct device *dev, int on) 277 { 278 struct venus_core *core = dev_get_drvdata(dev); 279 int ret = 0; 280 281 if (on == POWER_ON) 282 ret = core_clks_enable(core); 283 else 284 core_clks_disable(core); 285 286 return ret; 287 } 288 289 static const struct venus_pm_ops pm_ops_v1 = { 290 .core_get = core_get_v1, 291 .core_power = core_power_v1, 292 .load_scale = load_scale_v1, 293 }; 294 295 static void 296 vcodec_control_v3(struct venus_core *core, u32 session_type, bool enable) 297 { 298 void __iomem *ctrl; 299 300 if (session_type == VIDC_SESSION_TYPE_DEC) 301 ctrl = core->base + WRAPPER_VDEC_VCODEC_POWER_CONTROL; 302 else 303 ctrl = core->base + WRAPPER_VENC_VCODEC_POWER_CONTROL; 304 305 if (enable) 306 writel(0, ctrl); 307 else 308 writel(1, ctrl); 309 } 310 311 static int vdec_get_v3(struct device *dev) 312 { 313 struct venus_core *core = dev_get_drvdata(dev); 314 315 return vcodec_clks_get(core, dev, core->vcodec0_clks, 316 core->res->vcodec0_clks); 317 } 318 319 static int vdec_power_v3(struct device *dev, int on) 320 { 321 struct venus_core *core = dev_get_drvdata(dev); 322 int ret = 0; 323 324 vcodec_control_v3(core, VIDC_SESSION_TYPE_DEC, true); 325 326 if (on == POWER_ON) 327 ret = vcodec_clks_enable(core, core->vcodec0_clks); 328 else 329 vcodec_clks_disable(core, core->vcodec0_clks); 330 331 vcodec_control_v3(core, VIDC_SESSION_TYPE_DEC, false); 332 333 return ret; 334 } 335 336 static int venc_get_v3(struct device *dev) 337 { 338 struct venus_core *core = dev_get_drvdata(dev); 339 340 return vcodec_clks_get(core, dev, core->vcodec1_clks, 341 core->res->vcodec1_clks); 342 } 343 344 static int venc_power_v3(struct device *dev, int on) 345 { 346 struct venus_core *core = dev_get_drvdata(dev); 347 int ret = 0; 348 349 vcodec_control_v3(core, VIDC_SESSION_TYPE_ENC, true); 350 351 if (on == POWER_ON) 352 ret = vcodec_clks_enable(core, core->vcodec1_clks); 353 else 354 vcodec_clks_disable(core, core->vcodec1_clks); 355 356 vcodec_control_v3(core, VIDC_SESSION_TYPE_ENC, false); 357 358 return ret; 359 } 360 361 static const struct venus_pm_ops pm_ops_v3 = { 362 .core_get = core_get_v1, 363 .core_power = core_power_v1, 364 .vdec_get = vdec_get_v3, 365 .vdec_power = vdec_power_v3, 366 .venc_get = venc_get_v3, 367 .venc_power = venc_power_v3, 368 .load_scale = load_scale_v1, 369 }; 370 371 static int vcodec_control_v4(struct venus_core *core, u32 coreid, bool enable) 372 { 373 void __iomem *ctrl, *stat; 374 u32 val; 375 int ret; 376 377 if (coreid == VIDC_CORE_ID_1) { 378 ctrl = core->base + WRAPPER_VCODEC0_MMCC_POWER_CONTROL; 379 stat = core->base + WRAPPER_VCODEC0_MMCC_POWER_STATUS; 380 } else { 381 ctrl = core->base + WRAPPER_VCODEC1_MMCC_POWER_CONTROL; 382 stat = core->base + WRAPPER_VCODEC1_MMCC_POWER_STATUS; 383 } 384 385 if (enable) { 386 writel(0, ctrl); 387 388 ret = readl_poll_timeout(stat, val, val & BIT(1), 1, 100); 389 if (ret) 390 return ret; 391 } else { 392 writel(1, ctrl); 393 394 ret = readl_poll_timeout(stat, val, !(val & BIT(1)), 1, 100); 395 if (ret) 396 return ret; 397 } 398 399 return 0; 400 } 401 402 static int poweroff_coreid(struct venus_core *core, unsigned int coreid_mask) 403 { 404 int ret; 405 406 if (coreid_mask & VIDC_CORE_ID_1) { 407 ret = vcodec_control_v4(core, VIDC_CORE_ID_1, true); 408 if (ret) 409 return ret; 410 411 vcodec_clks_disable(core, core->vcodec0_clks); 412 413 ret = vcodec_control_v4(core, VIDC_CORE_ID_1, false); 414 if (ret) 415 return ret; 416 417 ret = pm_runtime_put_sync(core->pmdomains[1]); 418 if (ret < 0) 419 return ret; 420 } 421 422 if (coreid_mask & VIDC_CORE_ID_2) { 423 ret = vcodec_control_v4(core, VIDC_CORE_ID_2, true); 424 if (ret) 425 return ret; 426 427 vcodec_clks_disable(core, core->vcodec1_clks); 428 429 ret = vcodec_control_v4(core, VIDC_CORE_ID_2, false); 430 if (ret) 431 return ret; 432 433 ret = pm_runtime_put_sync(core->pmdomains[2]); 434 if (ret < 0) 435 return ret; 436 } 437 438 return 0; 439 } 440 441 static int poweron_coreid(struct venus_core *core, unsigned int coreid_mask) 442 { 443 int ret; 444 445 if (coreid_mask & VIDC_CORE_ID_1) { 446 ret = pm_runtime_get_sync(core->pmdomains[1]); 447 if (ret < 0) 448 return ret; 449 450 ret = vcodec_control_v4(core, VIDC_CORE_ID_1, true); 451 if (ret) 452 return ret; 453 454 ret = vcodec_clks_enable(core, core->vcodec0_clks); 455 if (ret) 456 return ret; 457 458 ret = vcodec_control_v4(core, VIDC_CORE_ID_1, false); 459 if (ret < 0) 460 return ret; 461 } 462 463 if (coreid_mask & VIDC_CORE_ID_2) { 464 ret = pm_runtime_get_sync(core->pmdomains[2]); 465 if (ret < 0) 466 return ret; 467 468 ret = vcodec_control_v4(core, VIDC_CORE_ID_2, true); 469 if (ret) 470 return ret; 471 472 ret = vcodec_clks_enable(core, core->vcodec1_clks); 473 if (ret) 474 return ret; 475 476 ret = vcodec_control_v4(core, VIDC_CORE_ID_2, false); 477 if (ret < 0) 478 return ret; 479 } 480 481 return 0; 482 } 483 484 static void 485 min_loaded_core(struct venus_inst *inst, u32 *min_coreid, u32 *min_load) 486 { 487 u32 mbs_per_sec, load, core1_load = 0, core2_load = 0; 488 u32 cores_max = core_num_max(inst); 489 struct venus_core *core = inst->core; 490 struct venus_inst *inst_pos; 491 unsigned long vpp_freq; 492 u32 coreid; 493 494 mutex_lock(&core->lock); 495 496 list_for_each_entry(inst_pos, &core->instances, list) { 497 if (inst_pos == inst) 498 continue; 499 vpp_freq = inst_pos->clk_data.codec_freq_data->vpp_freq; 500 coreid = inst_pos->clk_data.core_id; 501 502 mbs_per_sec = load_per_instance(inst_pos); 503 load = mbs_per_sec * vpp_freq; 504 505 if ((coreid & VIDC_CORE_ID_3) == VIDC_CORE_ID_3) { 506 core1_load += load / 2; 507 core2_load += load / 2; 508 } else if (coreid & VIDC_CORE_ID_1) { 509 core1_load += load; 510 } else if (coreid & VIDC_CORE_ID_2) { 511 core2_load += load; 512 } 513 } 514 515 *min_coreid = core1_load <= core2_load ? 516 VIDC_CORE_ID_1 : VIDC_CORE_ID_2; 517 *min_load = min(core1_load, core2_load); 518 519 if (cores_max < VIDC_CORE_ID_2 || core->res->vcodec_num < 2) { 520 *min_coreid = VIDC_CORE_ID_1; 521 *min_load = core1_load; 522 } 523 524 mutex_unlock(&core->lock); 525 } 526 527 static int decide_core(struct venus_inst *inst) 528 { 529 const u32 ptype = HFI_PROPERTY_CONFIG_VIDEOCORES_USAGE; 530 struct venus_core *core = inst->core; 531 u32 min_coreid, min_load, inst_load; 532 struct hfi_videocores_usage_type cu; 533 unsigned long max_freq; 534 535 if (legacy_binding) { 536 if (inst->session_type == VIDC_SESSION_TYPE_DEC) 537 cu.video_core_enable_mask = VIDC_CORE_ID_1; 538 else 539 cu.video_core_enable_mask = VIDC_CORE_ID_2; 540 541 goto done; 542 } 543 544 if (inst->clk_data.core_id != VIDC_CORE_ID_DEFAULT) 545 return 0; 546 547 inst_load = load_per_instance(inst); 548 inst_load *= inst->clk_data.codec_freq_data->vpp_freq; 549 max_freq = core->res->freq_tbl[0].freq; 550 551 min_loaded_core(inst, &min_coreid, &min_load); 552 553 if ((inst_load + min_load) > max_freq) { 554 dev_warn(core->dev, "HW is overloaded, needed: %u max: %lu\n", 555 inst_load, max_freq); 556 return -EINVAL; 557 } 558 559 inst->clk_data.core_id = min_coreid; 560 cu.video_core_enable_mask = min_coreid; 561 562 done: 563 return hfi_session_set_property(inst, ptype, &cu); 564 } 565 566 static int acquire_core(struct venus_inst *inst) 567 { 568 struct venus_core *core = inst->core; 569 unsigned int coreid_mask = 0; 570 571 if (inst->core_acquired) 572 return 0; 573 574 inst->core_acquired = true; 575 576 if (inst->clk_data.core_id & VIDC_CORE_ID_1) { 577 if (core->core0_usage_count++) 578 return 0; 579 580 coreid_mask = VIDC_CORE_ID_1; 581 } 582 583 if (inst->clk_data.core_id & VIDC_CORE_ID_2) { 584 if (core->core1_usage_count++) 585 return 0; 586 587 coreid_mask |= VIDC_CORE_ID_2; 588 } 589 590 return poweron_coreid(core, coreid_mask); 591 } 592 593 static int release_core(struct venus_inst *inst) 594 { 595 struct venus_core *core = inst->core; 596 unsigned int coreid_mask = 0; 597 int ret; 598 599 if (!inst->core_acquired) 600 return 0; 601 602 if (inst->clk_data.core_id & VIDC_CORE_ID_1) { 603 if (--core->core0_usage_count) 604 goto done; 605 606 coreid_mask = VIDC_CORE_ID_1; 607 } 608 609 if (inst->clk_data.core_id & VIDC_CORE_ID_2) { 610 if (--core->core1_usage_count) 611 goto done; 612 613 coreid_mask |= VIDC_CORE_ID_2; 614 } 615 616 ret = poweroff_coreid(core, coreid_mask); 617 if (ret) 618 return ret; 619 620 done: 621 inst->clk_data.core_id = VIDC_CORE_ID_DEFAULT; 622 inst->core_acquired = false; 623 return 0; 624 } 625 626 static int coreid_power_v4(struct venus_inst *inst, int on) 627 { 628 struct venus_core *core = inst->core; 629 int ret; 630 631 if (legacy_binding) 632 return 0; 633 634 if (on == POWER_ON) { 635 ret = decide_core(inst); 636 if (ret) 637 return ret; 638 639 mutex_lock(&core->lock); 640 ret = acquire_core(inst); 641 mutex_unlock(&core->lock); 642 } else { 643 mutex_lock(&core->lock); 644 ret = release_core(inst); 645 mutex_unlock(&core->lock); 646 } 647 648 return ret; 649 } 650 651 static int vdec_get_v4(struct device *dev) 652 { 653 struct venus_core *core = dev_get_drvdata(dev); 654 655 if (!legacy_binding) 656 return 0; 657 658 return vcodec_clks_get(core, dev, core->vcodec0_clks, 659 core->res->vcodec0_clks); 660 } 661 662 static void vdec_put_v4(struct device *dev) 663 { 664 struct venus_core *core = dev_get_drvdata(dev); 665 unsigned int i; 666 667 if (!legacy_binding) 668 return; 669 670 for (i = 0; i < core->res->vcodec_clks_num; i++) 671 core->vcodec0_clks[i] = NULL; 672 } 673 674 static int vdec_power_v4(struct device *dev, int on) 675 { 676 struct venus_core *core = dev_get_drvdata(dev); 677 int ret; 678 679 if (!legacy_binding) 680 return 0; 681 682 ret = vcodec_control_v4(core, VIDC_CORE_ID_1, true); 683 if (ret) 684 return ret; 685 686 if (on == POWER_ON) 687 ret = vcodec_clks_enable(core, core->vcodec0_clks); 688 else 689 vcodec_clks_disable(core, core->vcodec0_clks); 690 691 vcodec_control_v4(core, VIDC_CORE_ID_1, false); 692 693 return ret; 694 } 695 696 static int venc_get_v4(struct device *dev) 697 { 698 struct venus_core *core = dev_get_drvdata(dev); 699 700 if (!legacy_binding) 701 return 0; 702 703 return vcodec_clks_get(core, dev, core->vcodec1_clks, 704 core->res->vcodec1_clks); 705 } 706 707 static void venc_put_v4(struct device *dev) 708 { 709 struct venus_core *core = dev_get_drvdata(dev); 710 unsigned int i; 711 712 if (!legacy_binding) 713 return; 714 715 for (i = 0; i < core->res->vcodec_clks_num; i++) 716 core->vcodec1_clks[i] = NULL; 717 } 718 719 static int venc_power_v4(struct device *dev, int on) 720 { 721 struct venus_core *core = dev_get_drvdata(dev); 722 int ret; 723 724 if (!legacy_binding) 725 return 0; 726 727 ret = vcodec_control_v4(core, VIDC_CORE_ID_2, true); 728 if (ret) 729 return ret; 730 731 if (on == POWER_ON) 732 ret = vcodec_clks_enable(core, core->vcodec1_clks); 733 else 734 vcodec_clks_disable(core, core->vcodec1_clks); 735 736 vcodec_control_v4(core, VIDC_CORE_ID_2, false); 737 738 return ret; 739 } 740 741 static int vcodec_domains_get(struct device *dev) 742 { 743 struct venus_core *core = dev_get_drvdata(dev); 744 const struct venus_resources *res = core->res; 745 struct device *pd; 746 unsigned int i; 747 748 if (!res->vcodec_pmdomains_num) 749 return -ENODEV; 750 751 for (i = 0; i < res->vcodec_pmdomains_num; i++) { 752 pd = dev_pm_domain_attach_by_name(dev, 753 res->vcodec_pmdomains[i]); 754 if (IS_ERR(pd)) 755 return PTR_ERR(pd); 756 core->pmdomains[i] = pd; 757 } 758 759 core->pd_dl_venus = device_link_add(dev, core->pmdomains[0], 760 DL_FLAG_PM_RUNTIME | 761 DL_FLAG_STATELESS | 762 DL_FLAG_RPM_ACTIVE); 763 if (!core->pd_dl_venus) 764 return -ENODEV; 765 766 return 0; 767 } 768 769 static void vcodec_domains_put(struct device *dev) 770 { 771 struct venus_core *core = dev_get_drvdata(dev); 772 const struct venus_resources *res = core->res; 773 unsigned int i; 774 775 if (!res->vcodec_pmdomains_num) 776 return; 777 778 if (core->pd_dl_venus) 779 device_link_del(core->pd_dl_venus); 780 781 for (i = 0; i < res->vcodec_pmdomains_num; i++) { 782 if (IS_ERR_OR_NULL(core->pmdomains[i])) 783 continue; 784 dev_pm_domain_detach(core->pmdomains[i], true); 785 } 786 } 787 788 static int core_get_v4(struct device *dev) 789 { 790 struct venus_core *core = dev_get_drvdata(dev); 791 const struct venus_resources *res = core->res; 792 int ret; 793 794 ret = core_clks_get(core); 795 if (ret) 796 return ret; 797 798 if (!res->vcodec_pmdomains_num) 799 legacy_binding = true; 800 801 dev_info(dev, "%s legacy binding\n", legacy_binding ? "" : "non"); 802 803 ret = vcodec_clks_get(core, dev, core->vcodec0_clks, res->vcodec0_clks); 804 if (ret) 805 return ret; 806 807 ret = vcodec_clks_get(core, dev, core->vcodec1_clks, res->vcodec1_clks); 808 if (ret) 809 return ret; 810 811 if (legacy_binding) 812 return 0; 813 814 ret = vcodec_domains_get(dev); 815 if (ret) 816 return ret; 817 818 return 0; 819 } 820 821 static void core_put_v4(struct device *dev) 822 { 823 if (legacy_binding) 824 return; 825 826 vcodec_domains_put(dev); 827 } 828 829 static int core_power_v4(struct device *dev, int on) 830 { 831 struct venus_core *core = dev_get_drvdata(dev); 832 int ret = 0; 833 834 if (on == POWER_ON) 835 ret = core_clks_enable(core); 836 else 837 core_clks_disable(core); 838 839 return ret; 840 } 841 842 static unsigned long calculate_inst_freq(struct venus_inst *inst, 843 unsigned long filled_len) 844 { 845 unsigned long vpp_freq = 0, vsp_freq = 0; 846 u32 fps = (u32)inst->fps; 847 u32 mbs_per_sec; 848 849 mbs_per_sec = load_per_instance(inst) / fps; 850 851 vpp_freq = mbs_per_sec * inst->clk_data.codec_freq_data->vpp_freq; 852 /* 21 / 20 is overhead factor */ 853 vpp_freq += vpp_freq / 20; 854 vsp_freq = mbs_per_sec * inst->clk_data.codec_freq_data->vsp_freq; 855 856 /* 10 / 7 is overhead factor */ 857 if (inst->session_type == VIDC_SESSION_TYPE_ENC) 858 vsp_freq += (inst->controls.enc.bitrate * 10) / 7; 859 else 860 vsp_freq += ((fps * filled_len * 8) * 10) / 7; 861 862 return max(vpp_freq, vsp_freq); 863 } 864 865 static int load_scale_v4(struct venus_inst *inst) 866 { 867 struct venus_core *core = inst->core; 868 const struct freq_tbl *table = core->res->freq_tbl; 869 unsigned int num_rows = core->res->freq_tbl_size; 870 struct device *dev = core->dev; 871 unsigned long freq = 0, freq_core1 = 0, freq_core2 = 0; 872 unsigned long filled_len = 0; 873 int i, ret; 874 875 for (i = 0; i < inst->num_input_bufs; i++) 876 filled_len = max(filled_len, inst->payloads[i]); 877 878 if (inst->session_type == VIDC_SESSION_TYPE_DEC && !filled_len) 879 return 0; 880 881 freq = calculate_inst_freq(inst, filled_len); 882 inst->clk_data.freq = freq; 883 884 mutex_lock(&core->lock); 885 list_for_each_entry(inst, &core->instances, list) { 886 if (inst->clk_data.core_id == VIDC_CORE_ID_1) { 887 freq_core1 += inst->clk_data.freq; 888 } else if (inst->clk_data.core_id == VIDC_CORE_ID_2) { 889 freq_core2 += inst->clk_data.freq; 890 } else if (inst->clk_data.core_id == VIDC_CORE_ID_3) { 891 freq_core1 += inst->clk_data.freq; 892 freq_core2 += inst->clk_data.freq; 893 } 894 } 895 mutex_unlock(&core->lock); 896 897 freq = max(freq_core1, freq_core2); 898 899 if (freq >= table[0].freq) { 900 freq = table[0].freq; 901 dev_warn(dev, "HW is overloaded, needed: %lu max: %lu\n", 902 freq, table[0].freq); 903 goto set_freq; 904 } 905 906 for (i = num_rows - 1 ; i >= 0; i--) { 907 if (freq <= table[i].freq) { 908 freq = table[i].freq; 909 break; 910 } 911 } 912 913 set_freq: 914 915 ret = core_clks_set_rate(core, freq); 916 if (ret) { 917 dev_err(dev, "failed to set clock rate %lu (%d)\n", 918 freq, ret); 919 return ret; 920 } 921 922 ret = load_scale_bw(core); 923 if (ret) { 924 dev_err(dev, "failed to set bandwidth (%d)\n", 925 ret); 926 return ret; 927 } 928 929 return 0; 930 } 931 932 static const struct venus_pm_ops pm_ops_v4 = { 933 .core_get = core_get_v4, 934 .core_put = core_put_v4, 935 .core_power = core_power_v4, 936 .vdec_get = vdec_get_v4, 937 .vdec_put = vdec_put_v4, 938 .vdec_power = vdec_power_v4, 939 .venc_get = venc_get_v4, 940 .venc_put = venc_put_v4, 941 .venc_power = venc_power_v4, 942 .coreid_power = coreid_power_v4, 943 .load_scale = load_scale_v4, 944 }; 945 946 const struct venus_pm_ops *venus_pm_get(enum hfi_version version) 947 { 948 switch (version) { 949 case HFI_VERSION_1XX: 950 default: 951 return &pm_ops_v1; 952 case HFI_VERSION_3XX: 953 return &pm_ops_v3; 954 case HFI_VERSION_4XX: 955 return &pm_ops_v4; 956 } 957 958 return NULL; 959 } 960