Lines Matching refs:tu
300 struct tu_algo_data *tu) in dp_panel_update_tu_timings() argument
318 tu->lclk_fp = drm_fixp_from_fraction(in->lclk, 1); in dp_panel_update_tu_timings()
319 tu->pclk_fp = drm_fixp_from_fraction(in->pclk_khz, 1000); in dp_panel_update_tu_timings()
320 tu->lwidth = in->hactive; in dp_panel_update_tu_timings()
321 tu->hbp_relative_to_pclk = in->hporch; in dp_panel_update_tu_timings()
322 tu->nlanes = in->nlanes; in dp_panel_update_tu_timings()
323 tu->bpp = in->bpp; in dp_panel_update_tu_timings()
324 tu->pixelEnc = in->pixel_enc; in dp_panel_update_tu_timings()
325 tu->dsc_en = in->dsc_en; in dp_panel_update_tu_timings()
326 tu->async_en = in->async_en; in dp_panel_update_tu_timings()
327 tu->lwidth_fp = drm_fixp_from_fraction(in->hactive, 1); in dp_panel_update_tu_timings()
328 tu->hbp_relative_to_pclk_fp = drm_fixp_from_fraction(in->hporch, 1); in dp_panel_update_tu_timings()
330 if (tu->pixelEnc == 420) { in dp_panel_update_tu_timings()
332 tu->pclk_fp = drm_fixp_div(tu->pclk_fp, temp1_fp); in dp_panel_update_tu_timings()
333 tu->lwidth_fp = drm_fixp_div(tu->lwidth_fp, temp1_fp); in dp_panel_update_tu_timings()
334 tu->hbp_relative_to_pclk_fp = in dp_panel_update_tu_timings()
335 drm_fixp_div(tu->hbp_relative_to_pclk_fp, 2); in dp_panel_update_tu_timings()
338 if (tu->pixelEnc == 422) { in dp_panel_update_tu_timings()
339 switch (tu->bpp) { in dp_panel_update_tu_timings()
341 tu->bpp = 16; in dp_panel_update_tu_timings()
342 tu->bpc = 8; in dp_panel_update_tu_timings()
345 tu->bpp = 20; in dp_panel_update_tu_timings()
346 tu->bpc = 10; in dp_panel_update_tu_timings()
349 tu->bpp = 16; in dp_panel_update_tu_timings()
350 tu->bpc = 8; in dp_panel_update_tu_timings()
354 tu->bpc = tu->bpp/3; in dp_panel_update_tu_timings()
363 temp2_fp = drm_fixp_mul(tu->lwidth_fp, temp3_fp); in dp_panel_update_tu_timings()
385 temp2_fp = drm_fixp_mul(tu->pclk_fp, dwidth_dsc_fp); in dp_panel_update_tu_timings()
386 temp1_fp = drm_fixp_div(temp2_fp, tu->lwidth_fp); in dp_panel_update_tu_timings()
389 temp1_fp = drm_fixp_div(pclk_dsc_fp, tu->pclk_fp); in dp_panel_update_tu_timings()
390 temp2_fp = drm_fixp_mul(tu->hbp_relative_to_pclk_fp, temp1_fp); in dp_panel_update_tu_timings()
394 tu->pclk_fp = pclk_dsc_fp; in dp_panel_update_tu_timings()
395 tu->lwidth_fp = dwidth_dsc_fp; in dp_panel_update_tu_timings()
396 tu->hbp_relative_to_pclk_fp = hbp_dsc_fp; in dp_panel_update_tu_timings()
401 tu->lclk_fp = drm_fixp_mul(tu->lclk_fp, temp1_fp); in dp_panel_update_tu_timings()
405 static void _tu_valid_boundary_calc(struct tu_algo_data *tu) in _tu_valid_boundary_calc() argument
410 temp1_fp = drm_fixp_from_fraction(tu->tu_size, 1); in _tu_valid_boundary_calc()
411 temp2_fp = drm_fixp_mul(tu->ratio_fp, temp1_fp); in _tu_valid_boundary_calc()
413 tu->new_valid_boundary_link = drm_fixp2int_ceil(temp2_fp); in _tu_valid_boundary_calc()
415 temp = (tu->i_upper_boundary_count * in _tu_valid_boundary_calc()
416 tu->new_valid_boundary_link + in _tu_valid_boundary_calc()
417 tu->i_lower_boundary_count * in _tu_valid_boundary_calc()
418 (tu->new_valid_boundary_link-1)); in _tu_valid_boundary_calc()
419 tu->average_valid2_fp = drm_fixp_from_fraction(temp, in _tu_valid_boundary_calc()
420 (tu->i_upper_boundary_count + in _tu_valid_boundary_calc()
421 tu->i_lower_boundary_count)); in _tu_valid_boundary_calc()
423 temp1_fp = drm_fixp_from_fraction(tu->bpp, 8); in _tu_valid_boundary_calc()
424 temp2_fp = tu->lwidth_fp; in _tu_valid_boundary_calc()
426 temp2_fp = drm_fixp_div(temp1_fp, tu->average_valid2_fp); in _tu_valid_boundary_calc()
427 tu->n_tus = drm_fixp2int(temp2_fp); in _tu_valid_boundary_calc()
429 tu->n_tus += 1; in _tu_valid_boundary_calc()
431 temp1_fp = drm_fixp_from_fraction(tu->n_tus, 1); in _tu_valid_boundary_calc()
432 temp2_fp = drm_fixp_mul(temp1_fp, tu->average_valid2_fp); in _tu_valid_boundary_calc()
433 temp1_fp = drm_fixp_from_fraction(tu->n_symbols, 1); in _tu_valid_boundary_calc()
435 temp1_fp = drm_fixp_from_fraction(tu->nlanes, 1); in _tu_valid_boundary_calc()
437 tu->n_remainder_symbols_per_lane_fp = temp2_fp; in _tu_valid_boundary_calc()
439 temp1_fp = drm_fixp_from_fraction(tu->tu_size, 1); in _tu_valid_boundary_calc()
440 tu->last_partial_tu_fp = in _tu_valid_boundary_calc()
441 drm_fixp_div(tu->n_remainder_symbols_per_lane_fp, in _tu_valid_boundary_calc()
444 if (tu->n_remainder_symbols_per_lane_fp != 0) in _tu_valid_boundary_calc()
445 tu->remainder_symbols_exist = 1; in _tu_valid_boundary_calc()
447 tu->remainder_symbols_exist = 0; in _tu_valid_boundary_calc()
449 temp1_fp = drm_fixp_from_fraction(tu->n_tus, tu->nlanes); in _tu_valid_boundary_calc()
450 tu->n_tus_per_lane = drm_fixp2int(temp1_fp); in _tu_valid_boundary_calc()
452 tu->paired_tus = (int)((tu->n_tus_per_lane) / in _tu_valid_boundary_calc()
453 (tu->i_upper_boundary_count + in _tu_valid_boundary_calc()
454 tu->i_lower_boundary_count)); in _tu_valid_boundary_calc()
456 tu->remainder_tus = tu->n_tus_per_lane - tu->paired_tus * in _tu_valid_boundary_calc()
457 (tu->i_upper_boundary_count + in _tu_valid_boundary_calc()
458 tu->i_lower_boundary_count); in _tu_valid_boundary_calc()
460 if ((tu->remainder_tus - tu->i_upper_boundary_count) > 0) { in _tu_valid_boundary_calc()
461 tu->remainder_tus_upper = tu->i_upper_boundary_count; in _tu_valid_boundary_calc()
462 tu->remainder_tus_lower = tu->remainder_tus - in _tu_valid_boundary_calc()
463 tu->i_upper_boundary_count; in _tu_valid_boundary_calc()
465 tu->remainder_tus_upper = tu->remainder_tus; in _tu_valid_boundary_calc()
466 tu->remainder_tus_lower = 0; in _tu_valid_boundary_calc()
469 temp = tu->paired_tus * (tu->i_upper_boundary_count * in _tu_valid_boundary_calc()
470 tu->new_valid_boundary_link + in _tu_valid_boundary_calc()
471 tu->i_lower_boundary_count * in _tu_valid_boundary_calc()
472 (tu->new_valid_boundary_link - 1)) + in _tu_valid_boundary_calc()
473 (tu->remainder_tus_upper * in _tu_valid_boundary_calc()
474 tu->new_valid_boundary_link) + in _tu_valid_boundary_calc()
475 (tu->remainder_tus_lower * in _tu_valid_boundary_calc()
476 (tu->new_valid_boundary_link - 1)); in _tu_valid_boundary_calc()
477 tu->total_valid_fp = drm_fixp_from_fraction(temp, 1); in _tu_valid_boundary_calc()
479 if (tu->remainder_symbols_exist) { in _tu_valid_boundary_calc()
480 temp1_fp = tu->total_valid_fp + in _tu_valid_boundary_calc()
481 tu->n_remainder_symbols_per_lane_fp; in _tu_valid_boundary_calc()
482 temp2_fp = drm_fixp_from_fraction(tu->n_tus_per_lane, 1); in _tu_valid_boundary_calc()
483 temp2_fp = temp2_fp + tu->last_partial_tu_fp; in _tu_valid_boundary_calc()
486 temp2_fp = drm_fixp_from_fraction(tu->n_tus_per_lane, 1); in _tu_valid_boundary_calc()
487 temp1_fp = drm_fixp_div(tu->total_valid_fp, temp2_fp); in _tu_valid_boundary_calc()
489 tu->effective_valid_fp = temp1_fp; in _tu_valid_boundary_calc()
491 temp1_fp = drm_fixp_from_fraction(tu->tu_size, 1); in _tu_valid_boundary_calc()
492 temp2_fp = drm_fixp_mul(tu->ratio_fp, temp1_fp); in _tu_valid_boundary_calc()
493 tu->n_n_err_fp = tu->effective_valid_fp - temp2_fp; in _tu_valid_boundary_calc()
495 temp1_fp = drm_fixp_from_fraction(tu->tu_size, 1); in _tu_valid_boundary_calc()
496 temp2_fp = drm_fixp_mul(tu->ratio_fp, temp1_fp); in _tu_valid_boundary_calc()
497 tu->n_err_fp = tu->average_valid2_fp - temp2_fp; in _tu_valid_boundary_calc()
499 tu->even_distribution = tu->n_tus % tu->nlanes == 0 ? 1 : 0; in _tu_valid_boundary_calc()
501 temp1_fp = drm_fixp_from_fraction(tu->bpp, 8); in _tu_valid_boundary_calc()
502 temp2_fp = tu->lwidth_fp; in _tu_valid_boundary_calc()
504 temp2_fp = drm_fixp_div(temp1_fp, tu->average_valid2_fp); in _tu_valid_boundary_calc()
507 tu->n_tus_incl_last_incomplete_tu = drm_fixp2int_ceil(temp2_fp); in _tu_valid_boundary_calc()
509 tu->n_tus_incl_last_incomplete_tu = 0; in _tu_valid_boundary_calc()
512 temp1_fp = drm_fixp_from_fraction(tu->tu_size, 1); in _tu_valid_boundary_calc()
513 temp2_fp = drm_fixp_mul(tu->original_ratio_fp, temp1_fp); in _tu_valid_boundary_calc()
514 temp1_fp = tu->average_valid2_fp - temp2_fp; in _tu_valid_boundary_calc()
515 temp2_fp = drm_fixp_from_fraction(tu->n_tus_incl_last_incomplete_tu, 1); in _tu_valid_boundary_calc()
521 temp = tu->i_upper_boundary_count * tu->nlanes; in _tu_valid_boundary_calc()
522 temp1_fp = drm_fixp_from_fraction(tu->tu_size, 1); in _tu_valid_boundary_calc()
523 temp2_fp = drm_fixp_mul(tu->original_ratio_fp, temp1_fp); in _tu_valid_boundary_calc()
524 temp1_fp = drm_fixp_from_fraction(tu->new_valid_boundary_link, 1); in _tu_valid_boundary_calc()
533 tu->extra_required_bytes_new_tmp = (int)(temp1 + temp2); in _tu_valid_boundary_calc()
535 temp1_fp = drm_fixp_from_fraction(8, tu->bpp); in _tu_valid_boundary_calc()
537 tu->extra_required_bytes_new_tmp, 1); in _tu_valid_boundary_calc()
541 tu->extra_pclk_cycles_tmp = drm_fixp2int_ceil(temp1_fp); in _tu_valid_boundary_calc()
543 tu->extra_pclk_cycles_tmp = 0; in _tu_valid_boundary_calc()
545 temp1_fp = drm_fixp_from_fraction(tu->extra_pclk_cycles_tmp, 1); in _tu_valid_boundary_calc()
546 temp2_fp = drm_fixp_div(tu->lclk_fp, tu->pclk_fp); in _tu_valid_boundary_calc()
550 tu->extra_pclk_cycles_in_link_clk_tmp = in _tu_valid_boundary_calc()
553 tu->extra_pclk_cycles_in_link_clk_tmp = 0; in _tu_valid_boundary_calc()
555 tu->filler_size_tmp = tu->tu_size - tu->new_valid_boundary_link; in _tu_valid_boundary_calc()
557 tu->lower_filler_size_tmp = tu->filler_size_tmp + 1; in _tu_valid_boundary_calc()
559 tu->delay_start_link_tmp = tu->extra_pclk_cycles_in_link_clk_tmp + in _tu_valid_boundary_calc()
560 tu->lower_filler_size_tmp + in _tu_valid_boundary_calc()
561 tu->extra_buffer_margin; in _tu_valid_boundary_calc()
563 temp1_fp = drm_fixp_from_fraction(tu->delay_start_link_tmp, 1); in _tu_valid_boundary_calc()
564 tu->delay_start_time_fp = drm_fixp_div(temp1_fp, tu->lclk_fp); in _tu_valid_boundary_calc()
566 compare_result_1 = _tu_param_compare(tu->n_n_err_fp, tu->diff_abs_fp); in _tu_valid_boundary_calc()
572 compare_result_2 = _tu_param_compare(tu->n_n_err_fp, tu->err_fp); in _tu_valid_boundary_calc()
578 compare_result_3 = _tu_param_compare(tu->hbp_time_fp, in _tu_valid_boundary_calc()
579 tu->delay_start_time_fp); in _tu_valid_boundary_calc()
585 if (((tu->even_distribution == 1) || in _tu_valid_boundary_calc()
586 ((tu->even_distribution_BF == 0) && in _tu_valid_boundary_calc()
587 (tu->even_distribution_legacy == 0))) && in _tu_valid_boundary_calc()
588 tu->n_err_fp >= 0 && tu->n_n_err_fp >= 0 && in _tu_valid_boundary_calc()
590 (compare_result_1 || (tu->min_hblank_violated == 1)) && in _tu_valid_boundary_calc()
591 (tu->new_valid_boundary_link - 1) > 0 && in _tu_valid_boundary_calc()
593 (tu->delay_start_link_tmp <= 1023)) { in _tu_valid_boundary_calc()
594 tu->upper_boundary_count = tu->i_upper_boundary_count; in _tu_valid_boundary_calc()
595 tu->lower_boundary_count = tu->i_lower_boundary_count; in _tu_valid_boundary_calc()
596 tu->err_fp = tu->n_n_err_fp; in _tu_valid_boundary_calc()
597 tu->boundary_moderation_en = true; in _tu_valid_boundary_calc()
598 tu->tu_size_desired = tu->tu_size; in _tu_valid_boundary_calc()
599 tu->valid_boundary_link = tu->new_valid_boundary_link; in _tu_valid_boundary_calc()
600 tu->effective_valid_recorded_fp = tu->effective_valid_fp; in _tu_valid_boundary_calc()
601 tu->even_distribution_BF = 1; in _tu_valid_boundary_calc()
602 tu->delay_start_link = tu->delay_start_link_tmp; in _tu_valid_boundary_calc()
603 } else if (tu->boundary_mod_lower_err == 0) { in _tu_valid_boundary_calc()
604 compare_result_1 = _tu_param_compare(tu->n_n_err_fp, in _tu_valid_boundary_calc()
605 tu->diff_abs_fp); in _tu_valid_boundary_calc()
607 tu->boundary_mod_lower_err = 1; in _tu_valid_boundary_calc()
614 struct tu_algo_data tu; in _dp_ctrl_calc_tu() local
629 memset(&tu, 0, sizeof(tu)); in _dp_ctrl_calc_tu()
631 dp_panel_update_tu_timings(in, &tu); in _dp_ctrl_calc_tu()
633 tu.err_fp = drm_fixp_from_fraction(1000, 1); /* 1000 */ in _dp_ctrl_calc_tu()
636 temp2_fp = drm_fixp_mul(temp1_fp, tu.lclk_fp); in _dp_ctrl_calc_tu()
637 temp_fp = drm_fixp_div(temp2_fp, tu.pclk_fp); in _dp_ctrl_calc_tu()
638 tu.extra_buffer_margin = drm_fixp2int_ceil(temp_fp); in _dp_ctrl_calc_tu()
640 temp1_fp = drm_fixp_from_fraction(tu.bpp, 8); in _dp_ctrl_calc_tu()
641 temp2_fp = drm_fixp_mul(tu.pclk_fp, temp1_fp); in _dp_ctrl_calc_tu()
642 temp1_fp = drm_fixp_from_fraction(tu.nlanes, 1); in _dp_ctrl_calc_tu()
644 tu.ratio_fp = drm_fixp_div(temp2_fp, tu.lclk_fp); in _dp_ctrl_calc_tu()
646 tu.original_ratio_fp = tu.ratio_fp; in _dp_ctrl_calc_tu()
647 tu.boundary_moderation_en = false; in _dp_ctrl_calc_tu()
648 tu.upper_boundary_count = 0; in _dp_ctrl_calc_tu()
649 tu.lower_boundary_count = 0; in _dp_ctrl_calc_tu()
650 tu.i_upper_boundary_count = 0; in _dp_ctrl_calc_tu()
651 tu.i_lower_boundary_count = 0; in _dp_ctrl_calc_tu()
652 tu.valid_lower_boundary_link = 0; in _dp_ctrl_calc_tu()
653 tu.even_distribution_BF = 0; in _dp_ctrl_calc_tu()
654 tu.even_distribution_legacy = 0; in _dp_ctrl_calc_tu()
655 tu.even_distribution = 0; in _dp_ctrl_calc_tu()
656 tu.delay_start_time_fp = 0; in _dp_ctrl_calc_tu()
658 tu.err_fp = drm_fixp_from_fraction(1000, 1); in _dp_ctrl_calc_tu()
659 tu.n_err_fp = 0; in _dp_ctrl_calc_tu()
660 tu.n_n_err_fp = 0; in _dp_ctrl_calc_tu()
662 tu.ratio = drm_fixp2int(tu.ratio_fp); in _dp_ctrl_calc_tu()
663 temp1_fp = drm_fixp_from_fraction(tu.nlanes, 1); in _dp_ctrl_calc_tu()
664 div64_u64_rem(tu.lwidth_fp, temp1_fp, &temp2_fp); in _dp_ctrl_calc_tu()
666 !tu.ratio && tu.dsc_en == 0) { in _dp_ctrl_calc_tu()
667 tu.ratio_fp = drm_fixp_mul(tu.ratio_fp, RATIO_SCALE_fp); in _dp_ctrl_calc_tu()
668 tu.ratio = drm_fixp2int(tu.ratio_fp); in _dp_ctrl_calc_tu()
669 if (tu.ratio) in _dp_ctrl_calc_tu()
670 tu.ratio_fp = drm_fixp_from_fraction(1, 1); in _dp_ctrl_calc_tu()
673 if (tu.ratio > 1) in _dp_ctrl_calc_tu()
674 tu.ratio = 1; in _dp_ctrl_calc_tu()
676 if (tu.ratio == 1) in _dp_ctrl_calc_tu()
679 compare_result_1 = _tu_param_compare(tu.ratio_fp, const_p49_fp); in _dp_ctrl_calc_tu()
685 compare_result_2 = _tu_param_compare(tu.ratio_fp, const_p56_fp); in _dp_ctrl_calc_tu()
691 if (tu.dsc_en && compare_result_1 && compare_result_2) { in _dp_ctrl_calc_tu()
698 for (tu.tu_size = 32; tu.tu_size <= 64; tu.tu_size++) { in _dp_ctrl_calc_tu()
699 temp1_fp = drm_fixp_from_fraction(tu.tu_size, 1); in _dp_ctrl_calc_tu()
700 temp2_fp = drm_fixp_mul(tu.ratio_fp, temp1_fp); in _dp_ctrl_calc_tu()
703 tu.n_err_fp = temp1_fp - temp2_fp; in _dp_ctrl_calc_tu()
705 if (tu.n_err_fp < tu.err_fp) { in _dp_ctrl_calc_tu()
706 tu.err_fp = tu.n_err_fp; in _dp_ctrl_calc_tu()
707 tu.tu_size_desired = tu.tu_size; in _dp_ctrl_calc_tu()
711 tu.tu_size_minus1 = tu.tu_size_desired - 1; in _dp_ctrl_calc_tu()
713 temp1_fp = drm_fixp_from_fraction(tu.tu_size_desired, 1); in _dp_ctrl_calc_tu()
714 temp2_fp = drm_fixp_mul(tu.ratio_fp, temp1_fp); in _dp_ctrl_calc_tu()
715 tu.valid_boundary_link = drm_fixp2int_ceil(temp2_fp); in _dp_ctrl_calc_tu()
717 temp1_fp = drm_fixp_from_fraction(tu.bpp, 8); in _dp_ctrl_calc_tu()
718 temp2_fp = tu.lwidth_fp; in _dp_ctrl_calc_tu()
721 temp1_fp = drm_fixp_from_fraction(tu.valid_boundary_link, 1); in _dp_ctrl_calc_tu()
723 tu.n_tus = drm_fixp2int(temp2_fp); in _dp_ctrl_calc_tu()
725 tu.n_tus += 1; in _dp_ctrl_calc_tu()
727 tu.even_distribution_legacy = tu.n_tus % tu.nlanes == 0 ? 1 : 0; in _dp_ctrl_calc_tu()
729 tu.valid_boundary_link, tu.n_tus); in _dp_ctrl_calc_tu()
731 temp1_fp = drm_fixp_from_fraction(tu.tu_size_desired, 1); in _dp_ctrl_calc_tu()
732 temp2_fp = drm_fixp_mul(tu.original_ratio_fp, temp1_fp); in _dp_ctrl_calc_tu()
733 temp1_fp = drm_fixp_from_fraction(tu.valid_boundary_link, 1); in _dp_ctrl_calc_tu()
735 temp1_fp = drm_fixp_from_fraction(tu.n_tus + 1, 1); in _dp_ctrl_calc_tu()
740 tu.extra_bytes = drm_fixp2int_ceil(temp2_fp); in _dp_ctrl_calc_tu()
742 tu.extra_bytes = 0; in _dp_ctrl_calc_tu()
744 temp1_fp = drm_fixp_from_fraction(tu.extra_bytes, 1); in _dp_ctrl_calc_tu()
745 temp2_fp = drm_fixp_from_fraction(8, tu.bpp); in _dp_ctrl_calc_tu()
749 tu.extra_pclk_cycles = drm_fixp2int_ceil(temp1_fp); in _dp_ctrl_calc_tu()
751 tu.extra_pclk_cycles = drm_fixp2int(temp1_fp); in _dp_ctrl_calc_tu()
753 temp1_fp = drm_fixp_div(tu.lclk_fp, tu.pclk_fp); in _dp_ctrl_calc_tu()
754 temp2_fp = drm_fixp_from_fraction(tu.extra_pclk_cycles, 1); in _dp_ctrl_calc_tu()
758 tu.extra_pclk_cycles_in_link_clk = drm_fixp2int_ceil(temp1_fp); in _dp_ctrl_calc_tu()
760 tu.extra_pclk_cycles_in_link_clk = drm_fixp2int(temp1_fp); in _dp_ctrl_calc_tu()
762 tu.filler_size = tu.tu_size_desired - tu.valid_boundary_link; in _dp_ctrl_calc_tu()
764 temp1_fp = drm_fixp_from_fraction(tu.tu_size_desired, 1); in _dp_ctrl_calc_tu()
765 tu.ratio_by_tu_fp = drm_fixp_mul(tu.ratio_fp, temp1_fp); in _dp_ctrl_calc_tu()
767 tu.delay_start_link = tu.extra_pclk_cycles_in_link_clk + in _dp_ctrl_calc_tu()
768 tu.filler_size + tu.extra_buffer_margin; in _dp_ctrl_calc_tu()
770 tu.resulting_valid_fp = in _dp_ctrl_calc_tu()
771 drm_fixp_from_fraction(tu.valid_boundary_link, 1); in _dp_ctrl_calc_tu()
773 temp1_fp = drm_fixp_from_fraction(tu.tu_size_desired, 1); in _dp_ctrl_calc_tu()
774 temp2_fp = drm_fixp_div(tu.resulting_valid_fp, temp1_fp); in _dp_ctrl_calc_tu()
775 tu.TU_ratio_err_fp = temp2_fp - tu.original_ratio_fp; in _dp_ctrl_calc_tu()
778 temp1_fp = tu.hbp_relative_to_pclk_fp - temp1_fp; in _dp_ctrl_calc_tu()
779 tu.hbp_time_fp = drm_fixp_div(temp1_fp, tu.pclk_fp); in _dp_ctrl_calc_tu()
781 temp1_fp = drm_fixp_from_fraction(tu.delay_start_link, 1); in _dp_ctrl_calc_tu()
782 tu.delay_start_time_fp = drm_fixp_div(temp1_fp, tu.lclk_fp); in _dp_ctrl_calc_tu()
784 compare_result_1 = _tu_param_compare(tu.hbp_time_fp, in _dp_ctrl_calc_tu()
785 tu.delay_start_time_fp); in _dp_ctrl_calc_tu()
787 tu.min_hblank_violated = 1; in _dp_ctrl_calc_tu()
789 tu.hactive_time_fp = drm_fixp_div(tu.lwidth_fp, tu.pclk_fp); in _dp_ctrl_calc_tu()
791 compare_result_2 = _tu_param_compare(tu.hactive_time_fp, in _dp_ctrl_calc_tu()
792 tu.delay_start_time_fp); in _dp_ctrl_calc_tu()
794 tu.min_hblank_violated = 1; in _dp_ctrl_calc_tu()
796 tu.delay_start_time_fp = 0; in _dp_ctrl_calc_tu()
800 tu.delay_start_link_extra_pixclk = EXTRA_PIXCLK_CYCLE_DELAY; in _dp_ctrl_calc_tu()
801 tu.diff_abs_fp = tu.resulting_valid_fp - tu.ratio_by_tu_fp; in _dp_ctrl_calc_tu()
803 temp = drm_fixp2int(tu.diff_abs_fp); in _dp_ctrl_calc_tu()
804 if (!temp && tu.diff_abs_fp <= 0xffff) in _dp_ctrl_calc_tu()
805 tu.diff_abs_fp = 0; in _dp_ctrl_calc_tu()
808 if (tu.diff_abs_fp < 0) in _dp_ctrl_calc_tu()
809 tu.diff_abs_fp = drm_fixp_mul(tu.diff_abs_fp, -1); in _dp_ctrl_calc_tu()
811 tu.boundary_mod_lower_err = 0; in _dp_ctrl_calc_tu()
812 if ((tu.diff_abs_fp != 0 && in _dp_ctrl_calc_tu()
813 ((tu.diff_abs_fp > BRUTE_FORCE_THRESHOLD_fp) || in _dp_ctrl_calc_tu()
814 (tu.even_distribution_legacy == 0) || in _dp_ctrl_calc_tu()
816 (tu.min_hblank_violated == 1)) { in _dp_ctrl_calc_tu()
818 tu.err_fp = drm_fixp_from_fraction(1000, 1); in _dp_ctrl_calc_tu()
820 temp1_fp = drm_fixp_div(tu.lclk_fp, tu.pclk_fp); in _dp_ctrl_calc_tu()
822 tu.delay_start_link_extra_pixclk, 1); in _dp_ctrl_calc_tu()
826 tu.extra_buffer_margin = in _dp_ctrl_calc_tu()
829 tu.extra_buffer_margin = 0; in _dp_ctrl_calc_tu()
831 temp1_fp = drm_fixp_from_fraction(tu.bpp, 8); in _dp_ctrl_calc_tu()
832 temp1_fp = drm_fixp_mul(tu.lwidth_fp, temp1_fp); in _dp_ctrl_calc_tu()
835 tu.n_symbols = drm_fixp2int_ceil(temp1_fp); in _dp_ctrl_calc_tu()
837 tu.n_symbols = 0; in _dp_ctrl_calc_tu()
839 for (tu.tu_size = 32; tu.tu_size <= 64; tu.tu_size++) { in _dp_ctrl_calc_tu()
840 for (tu.i_upper_boundary_count = 1; in _dp_ctrl_calc_tu()
841 tu.i_upper_boundary_count <= 15; in _dp_ctrl_calc_tu()
842 tu.i_upper_boundary_count++) { in _dp_ctrl_calc_tu()
843 for (tu.i_lower_boundary_count = 1; in _dp_ctrl_calc_tu()
844 tu.i_lower_boundary_count <= 15; in _dp_ctrl_calc_tu()
845 tu.i_lower_boundary_count++) { in _dp_ctrl_calc_tu()
846 _tu_valid_boundary_calc(&tu); in _dp_ctrl_calc_tu()
850 tu.delay_start_link_extra_pixclk--; in _dp_ctrl_calc_tu()
851 } while (tu.boundary_moderation_en != true && in _dp_ctrl_calc_tu()
852 tu.boundary_mod_lower_err == 1 && in _dp_ctrl_calc_tu()
853 tu.delay_start_link_extra_pixclk != 0); in _dp_ctrl_calc_tu()
855 if (tu.boundary_moderation_en == true) { in _dp_ctrl_calc_tu()
857 (tu.upper_boundary_count * in _dp_ctrl_calc_tu()
858 tu.valid_boundary_link + in _dp_ctrl_calc_tu()
859 tu.lower_boundary_count * in _dp_ctrl_calc_tu()
860 (tu.valid_boundary_link - 1)), 1); in _dp_ctrl_calc_tu()
862 (tu.upper_boundary_count + in _dp_ctrl_calc_tu()
863 tu.lower_boundary_count), 1); in _dp_ctrl_calc_tu()
864 tu.resulting_valid_fp = in _dp_ctrl_calc_tu()
868 tu.tu_size_desired, 1); in _dp_ctrl_calc_tu()
869 tu.ratio_by_tu_fp = in _dp_ctrl_calc_tu()
870 drm_fixp_mul(tu.original_ratio_fp, temp1_fp); in _dp_ctrl_calc_tu()
872 tu.valid_lower_boundary_link = in _dp_ctrl_calc_tu()
873 tu.valid_boundary_link - 1; in _dp_ctrl_calc_tu()
875 temp1_fp = drm_fixp_from_fraction(tu.bpp, 8); in _dp_ctrl_calc_tu()
876 temp1_fp = drm_fixp_mul(tu.lwidth_fp, temp1_fp); in _dp_ctrl_calc_tu()
878 tu.resulting_valid_fp); in _dp_ctrl_calc_tu()
879 tu.n_tus = drm_fixp2int(temp2_fp); in _dp_ctrl_calc_tu()
881 tu.tu_size_minus1 = tu.tu_size_desired - 1; in _dp_ctrl_calc_tu()
882 tu.even_distribution_BF = 1; in _dp_ctrl_calc_tu()
885 drm_fixp_from_fraction(tu.tu_size_desired, 1); in _dp_ctrl_calc_tu()
887 drm_fixp_div(tu.resulting_valid_fp, temp1_fp); in _dp_ctrl_calc_tu()
888 tu.TU_ratio_err_fp = temp2_fp - tu.original_ratio_fp; in _dp_ctrl_calc_tu()
892 temp2_fp = drm_fixp_mul(LCLK_FAST_SKEW_fp, tu.lwidth_fp); in _dp_ctrl_calc_tu()
899 temp1_fp = drm_fixp_from_fraction(tu.nlanes, 1); in _dp_ctrl_calc_tu()
900 temp2_fp = drm_fixp_mul(tu.original_ratio_fp, temp1_fp); in _dp_ctrl_calc_tu()
901 temp1_fp = drm_fixp_from_fraction(tu.bpp, 8); in _dp_ctrl_calc_tu()
907 if (tu.async_en) in _dp_ctrl_calc_tu()
908 tu.delay_start_link += (int)temp; in _dp_ctrl_calc_tu()
910 temp1_fp = drm_fixp_from_fraction(tu.delay_start_link, 1); in _dp_ctrl_calc_tu()
911 tu.delay_start_time_fp = drm_fixp_div(temp1_fp, tu.lclk_fp); in _dp_ctrl_calc_tu()
914 tu_table->valid_boundary_link = tu.valid_boundary_link; in _dp_ctrl_calc_tu()
915 tu_table->delay_start_link = tu.delay_start_link; in _dp_ctrl_calc_tu()
916 tu_table->boundary_moderation_en = tu.boundary_moderation_en; in _dp_ctrl_calc_tu()
917 tu_table->valid_lower_boundary_link = tu.valid_lower_boundary_link; in _dp_ctrl_calc_tu()
918 tu_table->upper_boundary_count = tu.upper_boundary_count; in _dp_ctrl_calc_tu()
919 tu_table->lower_boundary_count = tu.lower_boundary_count; in _dp_ctrl_calc_tu()
920 tu_table->tu_size_minus1 = tu.tu_size_minus1; in _dp_ctrl_calc_tu()