/*
 * Copyright 2017 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: AMD
 *
 */

#include "../display_mode_lib.h"
#include "../display_mode_vba.h"
#include "../dml_inline_defs.h"
#include "display_rq_dlg_calc_31.h"

static bool CalculateBytePerPixelAnd256BBlockSizes(
                enum source_format_class SourcePixelFormat,
                enum dm_swizzle_mode SurfaceTiling,
                unsigned int *BytePerPixelY,
                unsigned int *BytePerPixelC,
                double *BytePerPixelDETY,
                double *BytePerPixelDETC,
                unsigned int *BlockHeight256BytesY,
                unsigned int *BlockHeight256BytesC,
                unsigned int *BlockWidth256BytesY,
                unsigned int *BlockWidth256BytesC)
{
        if (SourcePixelFormat == dm_444_64) {
                *BytePerPixelDETY = 8;
                *BytePerPixelDETC = 0;
                *BytePerPixelY = 8;
                *BytePerPixelC = 0;
        } else if (SourcePixelFormat == dm_444_32 || SourcePixelFormat == dm_rgbe) {
                *BytePerPixelDETY = 4;
                *BytePerPixelDETC = 0;
                *BytePerPixelY = 4;
                *BytePerPixelC = 0;
        } else if (SourcePixelFormat == dm_444_16) {
                *BytePerPixelDETY = 2;
                *BytePerPixelDETC = 0;
                *BytePerPixelY = 2;
                *BytePerPixelC = 0;
        } else if (SourcePixelFormat == dm_444_8) {
                *BytePerPixelDETY = 1;
                *BytePerPixelDETC = 0;
                *BytePerPixelY = 1;
                *BytePerPixelC = 0;
        } else if (SourcePixelFormat == dm_rgbe_alpha) {
                *BytePerPixelDETY = 4;
                *BytePerPixelDETC = 1;
                *BytePerPixelY = 4;
                *BytePerPixelC = 1;
        } else if (SourcePixelFormat == dm_420_8) {
                *BytePerPixelDETY = 1;
                *BytePerPixelDETC = 2;
                *BytePerPixelY = 1;
                *BytePerPixelC = 2;
        } else if (SourcePixelFormat == dm_420_12) {
                *BytePerPixelDETY = 2;
                *BytePerPixelDETC = 4;
                *BytePerPixelY = 2;
                *BytePerPixelC = 4;
        } else {
                *BytePerPixelDETY = 4.0 / 3;
                *BytePerPixelDETC = 8.0 / 3;
                *BytePerPixelY = 2;
                *BytePerPixelC = 4;
        }

        if ((SourcePixelFormat == dm_444_64 || SourcePixelFormat == dm_444_32 || SourcePixelFormat == dm_444_16 || SourcePixelFormat == dm_444_8 || SourcePixelFormat == dm_mono_16
                        || SourcePixelFormat == dm_mono_8 || SourcePixelFormat == dm_rgbe)) {
                if (SurfaceTiling == dm_sw_linear) {
                        *BlockHeight256BytesY = 1;
                } else if (SourcePixelFormat == dm_444_64) {
                        *BlockHeight256BytesY = 4;
                } else if (SourcePixelFormat == dm_444_8) {
                        *BlockHeight256BytesY = 16;
                } else {
                        *BlockHeight256BytesY = 8;
                }
                *BlockWidth256BytesY = 256U / *BytePerPixelY / *BlockHeight256BytesY;
                *BlockHeight256BytesC = 0;
                *BlockWidth256BytesC = 0;
        } else {
                if (SurfaceTiling == dm_sw_linear) {
                        *BlockHeight256BytesY = 1;
                        *BlockHeight256BytesC = 1;
                } else if (SourcePixelFormat == dm_rgbe_alpha) {
                        *BlockHeight256BytesY = 8;
                        *BlockHeight256BytesC = 16;
                } else if (SourcePixelFormat == dm_420_8) {
                        *BlockHeight256BytesY = 16;
                        *BlockHeight256BytesC = 8;
                } else {
                        *BlockHeight256BytesY = 8;
                        *BlockHeight256BytesC = 8;
                }
                *BlockWidth256BytesY = 256U / *BytePerPixelY / *BlockHeight256BytesY;
                *BlockWidth256BytesC = 256U / *BytePerPixelC / *BlockHeight256BytesC;
        }
        return true;
}

static bool is_dual_plane(enum source_format_class source_format)
{
        bool ret_val = 0;

        if ((source_format == dm_420_12) || (source_format == dm_420_8) || (source_format == dm_420_10) || (source_format == dm_rgbe_alpha))
                ret_val = 1;

        return ret_val;
}

static double get_refcyc_per_delivery(
                struct display_mode_lib *mode_lib,
                double refclk_freq_in_mhz,
                double pclk_freq_in_mhz,
                unsigned int odm_combine,
                unsigned int recout_width,
                unsigned int hactive,
                double vratio,
                double hscale_pixel_rate,
                unsigned int delivery_width,
                unsigned int req_per_swath_ub)
{
        double refcyc_per_delivery = 0.0;

        if (vratio <= 1.0) {
                if (odm_combine)
                        refcyc_per_delivery = (double) refclk_freq_in_mhz * (double) ((unsigned int) odm_combine * 2)
                                        * dml_min((double) recout_width, (double) hactive / ((unsigned int) odm_combine * 2)) / pclk_freq_in_mhz / (double) req_per_swath_ub;
                else
                        refcyc_per_delivery = (double) refclk_freq_in_mhz * (double) recout_width / pclk_freq_in_mhz / (double) req_per_swath_ub;
        } else {
                refcyc_per_delivery = (double) refclk_freq_in_mhz * (double) delivery_width / (double) hscale_pixel_rate / (double) req_per_swath_ub;
        }

#ifdef __DML_RQ_DLG_CALC_DEBUG__
        dml_print("DML_DLG: %s: refclk_freq_in_mhz = %3.2f\n", __func__, refclk_freq_in_mhz);
        dml_print("DML_DLG: %s: pclk_freq_in_mhz   = %3.2f\n", __func__, pclk_freq_in_mhz);
        dml_print("DML_DLG: %s: recout_width       = %d\n", __func__, recout_width);
        dml_print("DML_DLG: %s: vratio             = %3.2f\n", __func__, vratio);
        dml_print("DML_DLG: %s: req_per_swath_ub   = %d\n", __func__, req_per_swath_ub);
        dml_print("DML_DLG: %s: hscale_pixel_rate  = %3.2f\n", __func__, hscale_pixel_rate);
        dml_print("DML_DLG: %s: delivery_width     = %d\n", __func__, delivery_width);
        dml_print("DML_DLG: %s: refcyc_per_delivery= %3.2f\n", __func__, refcyc_per_delivery);
#endif

        return refcyc_per_delivery;

}

static unsigned int get_blk_size_bytes(const enum source_macro_tile_size tile_size)
{
        if (tile_size == dm_256k_tile)
                return (256 * 1024);
        else if (tile_size == dm_64k_tile)
                return (64 * 1024);
        else
                return (4 * 1024);
}

static void extract_rq_sizing_regs(struct display_mode_lib *mode_lib, display_data_rq_regs_st *rq_regs, const display_data_rq_sizing_params_st rq_sizing)
{
        print__data_rq_sizing_params_st(mode_lib, rq_sizing);

        rq_regs->chunk_size = dml_log2(rq_sizing.chunk_bytes) - 10;

        if (rq_sizing.min_chunk_bytes == 0)
                rq_regs->min_chunk_size = 0;
        else
                rq_regs->min_chunk_size = dml_log2(rq_sizing.min_chunk_bytes) - 8 + 1;

        rq_regs->meta_chunk_size = dml_log2(rq_sizing.meta_chunk_bytes) - 10;
        if (rq_sizing.min_meta_chunk_bytes == 0)
                rq_regs->min_meta_chunk_size = 0;
        else
                rq_regs->min_meta_chunk_size = dml_log2(rq_sizing.min_meta_chunk_bytes) - 6 + 1;

        rq_regs->dpte_group_size = dml_log2(rq_sizing.dpte_group_bytes) - 6;
        rq_regs->mpte_group_size = dml_log2(rq_sizing.mpte_group_bytes) - 6;
}

static void extract_rq_regs(struct display_mode_lib *mode_lib, display_rq_regs_st *rq_regs, const display_rq_params_st rq_param)
{
        unsigned int detile_buf_size_in_bytes = mode_lib->ip.det_buffer_size_kbytes * 1024;
        unsigned int detile_buf_plane1_addr = 0;

        extract_rq_sizing_regs(mode_lib, &(rq_regs->rq_regs_l), rq_param.sizing.rq_l);

        rq_regs->rq_regs_l.pte_row_height_linear = dml_floor(dml_log2(rq_param.dlg.rq_l.dpte_row_height), 1) - 3;

        if (rq_param.yuv420) {
                extract_rq_sizing_regs(mode_lib, &(rq_regs->rq_regs_c), rq_param.sizing.rq_c);
                rq_regs->rq_regs_c.pte_row_height_linear = dml_floor(dml_log2(rq_param.dlg.rq_c.dpte_row_height), 1) - 3;
        }

        rq_regs->rq_regs_l.swath_height = dml_log2(rq_param.dlg.rq_l.swath_height);
        rq_regs->rq_regs_c.swath_height = dml_log2(rq_param.dlg.rq_c.swath_height);

        // FIXME: take the max between luma, chroma chunk size?
        // okay for now, as we are setting chunk_bytes to 8kb anyways
        if (rq_param.sizing.rq_l.chunk_bytes >= 32 * 1024 || (rq_param.yuv420 && rq_param.sizing.rq_c.chunk_bytes >= 32 * 1024)) { //32kb
                rq_regs->drq_expansion_mode = 0;
        } else {
                rq_regs->drq_expansion_mode = 2;
        }
        rq_regs->prq_expansion_mode = 1;
        rq_regs->mrq_expansion_mode = 1;
        rq_regs->crq_expansion_mode = 1;

        // Note: detile_buf_plane1_addr is in unit of 1KB
        if (rq_param.yuv420) {
                if ((double) rq_param.misc.rq_l.stored_swath_bytes / (double) rq_param.misc.rq_c.stored_swath_bytes <= 1.5) {
                        detile_buf_plane1_addr = (detile_buf_size_in_bytes / 2.0 / 1024.0); // half to chroma
#ifdef __DML_RQ_DLG_CALC_DEBUG__
                                        dml_print("DML_DLG: %s: detile_buf_plane1_addr = %0d (1/2 to chroma)\n", __func__, detile_buf_plane1_addr);
#endif
                } else {
                        detile_buf_plane1_addr = dml_round_to_multiple((unsigned int) ((2.0 * detile_buf_size_in_bytes) / 3.0), 1024, 0) / 1024.0; // 2/3 to luma
#ifdef __DML_RQ_DLG_CALC_DEBUG__
                                        dml_print("DML_DLG: %s: detile_buf_plane1_addr = %0d (1/3 chroma)\n", __func__, detile_buf_plane1_addr);
#endif
                }
        }
        rq_regs->plane1_base_address = detile_buf_plane1_addr;

#ifdef __DML_RQ_DLG_CALC_DEBUG__
        dml_print("DML_DLG: %s: detile_buf_size_in_bytes = %0d\n", __func__, detile_buf_size_in_bytes);
        dml_print("DML_DLG: %s: detile_buf_plane1_addr = %0d\n", __func__, detile_buf_plane1_addr);
        dml_print("DML_DLG: %s: plane1_base_address = %0d\n", __func__, rq_regs->plane1_base_address);
        dml_print("DML_DLG: %s: rq_l.stored_swath_bytes = %0d\n", __func__, rq_param.misc.rq_l.stored_swath_bytes);
        dml_print("DML_DLG: %s: rq_c.stored_swath_bytes = %0d\n", __func__, rq_param.misc.rq_c.stored_swath_bytes);
        dml_print("DML_DLG: %s: rq_l.swath_height = %0d\n", __func__, rq_param.dlg.rq_l.swath_height);
        dml_print("DML_DLG: %s: rq_c.swath_height = %0d\n", __func__, rq_param.dlg.rq_c.swath_height);
#endif
}

static void handle_det_buf_split(struct display_mode_lib *mode_lib, display_rq_params_st *rq_param, const display_pipe_source_params_st pipe_src_param)
{
        unsigned int total_swath_bytes = 0;
        unsigned int swath_bytes_l = 0;
        unsigned int swath_bytes_c = 0;
        unsigned int full_swath_bytes_packed_l = 0;
        unsigned int full_swath_bytes_packed_c = 0;
        bool req128_l = 0;
        bool req128_c = 0;
        bool surf_linear = (pipe_src_param.sw_mode == dm_sw_linear);
        bool surf_vert = (pipe_src_param.source_scan == dm_vert);
        unsigned int log2_swath_height_l = 0;
        unsigned int log2_swath_height_c = 0;
        unsigned int detile_buf_size_in_bytes = mode_lib->ip.det_buffer_size_kbytes * 1024;

        full_swath_bytes_packed_l = rq_param->misc.rq_l.full_swath_bytes;
        full_swath_bytes_packed_c = rq_param->misc.rq_c.full_swath_bytes;

#ifdef __DML_RQ_DLG_CALC_DEBUG__
        dml_print("DML_DLG: %s: full_swath_bytes_packed_l = %0d\n", __func__, full_swath_bytes_packed_l);
        dml_print("DML_DLG: %s: full_swath_bytes_packed_c = %0d\n", __func__, full_swath_bytes_packed_c);
#endif

        if (rq_param->yuv420_10bpc) {
                full_swath_bytes_packed_l = dml_round_to_multiple(rq_param->misc.rq_l.full_swath_bytes * 2.0 / 3.0, 256, 1) + 256;
                full_swath_bytes_packed_c = dml_round_to_multiple(rq_param->misc.rq_c.full_swath_bytes * 2.0 / 3.0, 256, 1) + 256;
#ifdef __DML_RQ_DLG_CALC_DEBUG__
                dml_print("DML_DLG: %s: full_swath_bytes_packed_l = %0d (3-2 packing)\n", __func__, full_swath_bytes_packed_l);
                dml_print("DML_DLG: %s: full_swath_bytes_packed_c = %0d (3-2 packing)\n", __func__, full_swath_bytes_packed_c);
#endif
        }

        if (rq_param->yuv420)
                total_swath_bytes = 2 * full_swath_bytes_packed_l + 2 * full_swath_bytes_packed_c;
        else
                total_swath_bytes = 2 * full_swath_bytes_packed_l;

#ifdef __DML_RQ_DLG_CALC_DEBUG__
        dml_print("DML_DLG: %s: total_swath_bytes = %0d\n", __func__, total_swath_bytes);
        dml_print("DML_DLG: %s: detile_buf_size_in_bytes = %0d\n", __func__, detile_buf_size_in_bytes);
#endif

        if (total_swath_bytes <= detile_buf_size_in_bytes) { //full 256b request
                req128_l = 0;
                req128_c = 0;
                swath_bytes_l = full_swath_bytes_packed_l;
                swath_bytes_c = full_swath_bytes_packed_c;
        } else if (!rq_param->yuv420) {
                req128_l = 1;
                req128_c = 0;
                swath_bytes_c = full_swath_bytes_packed_c;
                swath_bytes_l = full_swath_bytes_packed_l / 2;
        } else if ((double) full_swath_bytes_packed_l / (double) full_swath_bytes_packed_c < 1.5) {
                req128_l = 0;
                req128_c = 1;
                swath_bytes_l = full_swath_bytes_packed_l;
                swath_bytes_c = full_swath_bytes_packed_c / 2;

                total_swath_bytes = 2 * swath_bytes_l + 2 * swath_bytes_c;

                if (total_swath_bytes > detile_buf_size_in_bytes) {
                        req128_l = 1;
                        swath_bytes_l = full_swath_bytes_packed_l / 2;
                }
        } else {
                req128_l = 1;
                req128_c = 0;
                swath_bytes_l = full_swath_bytes_packed_l / 2;
                swath_bytes_c = full_swath_bytes_packed_c;

                total_swath_bytes = 2 * swath_bytes_l + 2 * swath_bytes_c;

                if (total_swath_bytes > detile_buf_size_in_bytes) {
                        req128_c = 1;
                        swath_bytes_c = full_swath_bytes_packed_c / 2;
                }
        }

        if (rq_param->yuv420)
                total_swath_bytes = 2 * swath_bytes_l + 2 * swath_bytes_c;
        else
                total_swath_bytes = 2 * swath_bytes_l;

        rq_param->misc.rq_l.stored_swath_bytes = swath_bytes_l;
        rq_param->misc.rq_c.stored_swath_bytes = swath_bytes_c;

#ifdef __DML_RQ_DLG_CALC_DEBUG__
        dml_print("DML_DLG: %s: total_swath_bytes = %0d\n", __func__, total_swath_bytes);
        dml_print("DML_DLG: %s: rq_l.stored_swath_bytes = %0d\n", __func__, rq_param->misc.rq_l.stored_swath_bytes);
        dml_print("DML_DLG: %s: rq_c.stored_swath_bytes = %0d\n", __func__, rq_param->misc.rq_c.stored_swath_bytes);
#endif
        if (surf_linear) {
                log2_swath_height_l = 0;
                log2_swath_height_c = 0;
        } else {
                unsigned int swath_height_l;
                unsigned int swath_height_c;

                if (!surf_vert) {
                        swath_height_l = rq_param->misc.rq_l.blk256_height;
                        swath_height_c = rq_param->misc.rq_c.blk256_height;
                } else {
                        swath_height_l = rq_param->misc.rq_l.blk256_width;
                        swath_height_c = rq_param->misc.rq_c.blk256_width;
                }

                if (swath_height_l > 0)
                        log2_swath_height_l = dml_log2(swath_height_l);

                if (req128_l && log2_swath_height_l > 0)
                        log2_swath_height_l -= 1;

                if (swath_height_c > 0)
                        log2_swath_height_c = dml_log2(swath_height_c);

                if (req128_c && log2_swath_height_c > 0)
                        log2_swath_height_c -= 1;
        }

        rq_param->dlg.rq_l.swath_height = 1 << log2_swath_height_l;
        rq_param->dlg.rq_c.swath_height = 1 << log2_swath_height_c;

#ifdef __DML_RQ_DLG_CALC_DEBUG__
        dml_print("DML_DLG: %s: req128_l = %0d\n", __func__, req128_l);
        dml_print("DML_DLG: %s: req128_c = %0d\n", __func__, req128_c);
        dml_print("DML_DLG: %s: full_swath_bytes_packed_l = %0d\n", __func__, full_swath_bytes_packed_l);
        dml_print("DML_DLG: %s: full_swath_bytes_packed_c = %0d\n", __func__, full_swath_bytes_packed_c);
        dml_print("DML_DLG: %s: swath_height luma = %0d\n", __func__, rq_param->dlg.rq_l.swath_height);
        dml_print("DML_DLG: %s: swath_height chroma = %0d\n", __func__, rq_param->dlg.rq_c.swath_height);
#endif
}

static void get_meta_and_pte_attr(
                struct display_mode_lib *mode_lib,
                display_data_rq_dlg_params_st *rq_dlg_param,
                display_data_rq_misc_params_st *rq_misc_param,
                display_data_rq_sizing_params_st *rq_sizing_param,
                unsigned int vp_width,
                unsigned int vp_height,
                unsigned int data_pitch,
                unsigned int meta_pitch,
                unsigned int source_format,
                unsigned int tiling,
                unsigned int macro_tile_size,
                unsigned int source_scan,
                unsigned int hostvm_enable,
                unsigned int is_chroma,
                unsigned int surface_height)
{
        bool surf_linear = (tiling == dm_sw_linear);
        bool surf_vert = (source_scan == dm_vert);

        unsigned int bytes_per_element;
        unsigned int bytes_per_element_y;
        unsigned int bytes_per_element_c;

        unsigned int blk256_width = 0;
        unsigned int blk256_height = 0;

        unsigned int blk256_width_y = 0;
        unsigned int blk256_height_y = 0;
        unsigned int blk256_width_c = 0;
        unsigned int blk256_height_c = 0;
        unsigned int log2_bytes_per_element;
        unsigned int log2_blk256_width;
        unsigned int log2_blk256_height;
        unsigned int blk_bytes;
        unsigned int log2_blk_bytes;
        unsigned int log2_blk_height;
        unsigned int log2_blk_width;
        unsigned int log2_meta_req_bytes;
        unsigned int log2_meta_req_height;
        unsigned int log2_meta_req_width;
        unsigned int meta_req_width;
        unsigned int meta_req_height;
        unsigned int log2_meta_row_height;
        unsigned int meta_row_width_ub;
        unsigned int log2_meta_chunk_bytes;
        unsigned int log2_meta_chunk_height;

        //full sized meta chunk width in unit of data elements
        unsigned int log2_meta_chunk_width;
        unsigned int log2_min_meta_chunk_bytes;
        unsigned int min_meta_chunk_width;
        unsigned int meta_chunk_width;
        unsigned int meta_chunk_per_row_int;
        unsigned int meta_row_remainder;
        unsigned int meta_chunk_threshold;
        unsigned int meta_blk_height;
        unsigned int meta_surface_bytes;
        unsigned int vmpg_bytes;
        unsigned int meta_pte_req_per_frame_ub;
        unsigned int meta_pte_bytes_per_frame_ub;
        const unsigned int log2_vmpg_bytes = dml_log2(mode_lib->soc.gpuvm_min_page_size_bytes);
        const bool dual_plane_en = is_dual_plane((enum source_format_class) (source_format));
        const unsigned int dpte_buf_in_pte_reqs =
                        dual_plane_en ? (is_chroma ? mode_lib->ip.dpte_buffer_size_in_pte_reqs_chroma : mode_lib->ip.dpte_buffer_size_in_pte_reqs_luma) : (mode_lib->ip.dpte_buffer_size_in_pte_reqs_luma
                                                        + mode_lib->ip.dpte_buffer_size_in_pte_reqs_chroma);

        unsigned int log2_vmpg_height = 0;
        unsigned int log2_vmpg_width = 0;
        unsigned int log2_dpte_req_height_ptes = 0;
        unsigned int log2_dpte_req_height = 0;
        unsigned int log2_dpte_req_width = 0;
        unsigned int log2_dpte_row_height_linear = 0;
        unsigned int log2_dpte_row_height = 0;
        unsigned int log2_dpte_group_width = 0;
        unsigned int dpte_row_width_ub = 0;
        unsigned int dpte_req_height = 0;
        unsigned int dpte_req_width = 0;
        unsigned int dpte_group_width = 0;
        unsigned int log2_dpte_group_bytes = 0;
        unsigned int log2_dpte_group_length = 0;
        double byte_per_pixel_det_y;
        double byte_per_pixel_det_c;

        CalculateBytePerPixelAnd256BBlockSizes(
                        (enum source_format_class) (source_format),
                        (enum dm_swizzle_mode) (tiling),
                        &bytes_per_element_y,
                        &bytes_per_element_c,
                        &byte_per_pixel_det_y,
                        &byte_per_pixel_det_c,
                        &blk256_height_y,
                        &blk256_height_c,
                        &blk256_width_y,
                        &blk256_width_c);

        if (!is_chroma) {
                blk256_width = blk256_width_y;
                blk256_height = blk256_height_y;
                bytes_per_element = bytes_per_element_y;
        } else {
                blk256_width = blk256_width_c;
                blk256_height = blk256_height_c;
                bytes_per_element = bytes_per_element_c;
        }

        log2_bytes_per_element = dml_log2(bytes_per_element);

        dml_print("DML_DLG: %s: surf_linear        = %d\n", __func__, surf_linear);
        dml_print("DML_DLG: %s: surf_vert          = %d\n", __func__, surf_vert);
        dml_print("DML_DLG: %s: blk256_width       = %d\n", __func__, blk256_width);
        dml_print("DML_DLG: %s: blk256_height      = %d\n", __func__, blk256_height);

        log2_blk256_width = dml_log2((double) blk256_width);
        log2_blk256_height = dml_log2((double) blk256_height);
        blk_bytes = surf_linear ? 256 : get_blk_size_bytes((enum source_macro_tile_size) macro_tile_size);
        log2_blk_bytes = dml_log2((double) blk_bytes);
        log2_blk_height = 0;
        log2_blk_width = 0;

        // remember log rule
        // "+" in log is multiply
        // "-" in log is divide
        // "/2" is like square root
        // blk is vertical biased
        if (tiling != dm_sw_linear)
                log2_blk_height = log2_blk256_height + dml_ceil((double) (log2_blk_bytes - 8) / 2.0, 1);
        else
                log2_blk_height = 0;    // blk height of 1

        log2_blk_width = log2_blk_bytes - log2_bytes_per_element - log2_blk_height;

        if (!surf_vert) {
                int unsigned temp;

                temp = dml_round_to_multiple(vp_width - 1, blk256_width, 1) + blk256_width;
                if (data_pitch < blk256_width) {
                        dml_print("WARNING: DML_DLG: %s: swath_size calculation ignoring data_pitch=%u < blk256_width=%u\n", __func__, data_pitch, blk256_width);
                } else {
                        if (temp > data_pitch) {
                                if (data_pitch >= vp_width)
                                        temp = data_pitch;
                                else
                                        dml_print("WARNING: DML_DLG: %s: swath_size calculation ignoring data_pitch=%u < vp_width=%u\n", __func__, data_pitch, vp_width);
                        }
                }
                rq_dlg_param->swath_width_ub = temp;
                rq_dlg_param->req_per_swath_ub = temp >> log2_blk256_width;
        } else {
                int unsigned temp;

                temp = dml_round_to_multiple(vp_height - 1, blk256_height, 1) + blk256_height;
                if (surface_height < blk256_height) {
                        dml_print("WARNING: DML_DLG: %s swath_size calculation ignored surface_height=%u < blk256_height=%u\n", __func__, surface_height, blk256_height);
                } else {
                        if (temp > surface_height) {
                                if (surface_height >= vp_height)
                                        temp = surface_height;
                                else
                                        dml_print("WARNING: DML_DLG: %s swath_size calculation ignored surface_height=%u < vp_height=%u\n", __func__, surface_height, vp_height);
                        }
                }
                rq_dlg_param->swath_width_ub = temp;
                rq_dlg_param->req_per_swath_ub = temp >> log2_blk256_height;
        }

        if (!surf_vert)
                rq_misc_param->full_swath_bytes = rq_dlg_param->swath_width_ub * blk256_height * bytes_per_element;
        else
                rq_misc_param->full_swath_bytes = rq_dlg_param->swath_width_ub * blk256_width * bytes_per_element;

        rq_misc_param->blk256_height = blk256_height;
        rq_misc_param->blk256_width = blk256_width;

        // -------
        // meta
        // -------
        log2_meta_req_bytes = 6;        // meta request is 64b and is 8x8byte meta element

        // each 64b meta request for dcn is 8x8 meta elements and
        // a meta element covers one 256b block of the data surface.
        log2_meta_req_height = log2_blk256_height + 3;  // meta req is 8x8 byte, each byte represent 1 blk256
        log2_meta_req_width = log2_meta_req_bytes + 8 - log2_bytes_per_element - log2_meta_req_height;
        meta_req_width = 1 << log2_meta_req_width;
        meta_req_height = 1 << log2_meta_req_height;
        log2_meta_row_height = 0;
        meta_row_width_ub = 0;

        // the dimensions of a meta row are meta_row_width x meta_row_height in elements.
        // calculate upper bound of the meta_row_width
        if (!surf_vert) {
                log2_meta_row_height = log2_meta_req_height;
                meta_row_width_ub = dml_round_to_multiple(vp_width - 1, meta_req_width, 1) + meta_req_width;
                rq_dlg_param->meta_req_per_row_ub = meta_row_width_ub / meta_req_width;
        } else {
                log2_meta_row_height = log2_meta_req_width;
                meta_row_width_ub = dml_round_to_multiple(vp_height - 1, meta_req_height, 1) + meta_req_height;
                rq_dlg_param->meta_req_per_row_ub = meta_row_width_ub / meta_req_height;
        }
        rq_dlg_param->meta_bytes_per_row_ub = rq_dlg_param->meta_req_per_row_ub * 64;

        rq_dlg_param->meta_row_height = 1 << log2_meta_row_height;

        log2_meta_chunk_bytes = dml_log2(rq_sizing_param->meta_chunk_bytes);
        log2_meta_chunk_height = log2_meta_row_height;

        //full sized meta chunk width in unit of data elements
        log2_meta_chunk_width = log2_meta_chunk_bytes + 8 - log2_bytes_per_element - log2_meta_chunk_height;
        log2_min_meta_chunk_bytes = dml_log2(rq_sizing_param->min_meta_chunk_bytes);
        min_meta_chunk_width = 1 << (log2_min_meta_chunk_bytes + 8 - log2_bytes_per_element - log2_meta_chunk_height);
        meta_chunk_width = 1 << log2_meta_chunk_width;
        meta_chunk_per_row_int = (unsigned int) (meta_row_width_ub / meta_chunk_width);
        meta_row_remainder = meta_row_width_ub % meta_chunk_width;
        meta_chunk_threshold = 0;
        meta_blk_height = blk256_height * 64;
        meta_surface_bytes = meta_pitch * (dml_round_to_multiple(vp_height - 1, meta_blk_height, 1) + meta_blk_height) * bytes_per_element / 256;
        vmpg_bytes = mode_lib->soc.gpuvm_min_page_size_bytes;
        meta_pte_req_per_frame_ub = (dml_round_to_multiple(meta_surface_bytes - vmpg_bytes, 8 * vmpg_bytes, 1) + 8 * vmpg_bytes) / (8 * vmpg_bytes);
        meta_pte_bytes_per_frame_ub = meta_pte_req_per_frame_ub * 64;   //64B mpte request
        rq_dlg_param->meta_pte_bytes_per_frame_ub = meta_pte_bytes_per_frame_ub;

        dml_print("DML_DLG: %s: meta_blk_height             = %d\n", __func__, meta_blk_height);
        dml_print("DML_DLG: %s: meta_surface_bytes          = %d\n", __func__, meta_surface_bytes);
        dml_print("DML_DLG: %s: meta_pte_req_per_frame_ub   = %d\n", __func__, meta_pte_req_per_frame_ub);
        dml_print("DML_DLG: %s: meta_pte_bytes_per_frame_ub = %d\n", __func__, meta_pte_bytes_per_frame_ub);

        if (!surf_vert)
                meta_chunk_threshold = 2 * min_meta_chunk_width - meta_req_width;
        else
                meta_chunk_threshold = 2 * min_meta_chunk_width - meta_req_height;

        if (meta_row_remainder <= meta_chunk_threshold)
                rq_dlg_param->meta_chunks_per_row_ub = meta_chunk_per_row_int + 1;
        else
                rq_dlg_param->meta_chunks_per_row_ub = meta_chunk_per_row_int + 2;

        // ------
        // dpte
        // ------
        if (surf_linear) {
                log2_vmpg_height = 0;   // one line high
        } else {
                log2_vmpg_height = (log2_vmpg_bytes - 8) / 2 + log2_blk256_height;
        }
        log2_vmpg_width = log2_vmpg_bytes - log2_bytes_per_element - log2_vmpg_height;

        // only 3 possible shapes for dpte request in dimensions of ptes: 8x1, 4x2, 2x4.
        if (surf_linear) { //one 64B PTE request returns 8 PTEs
                log2_dpte_req_height_ptes = 0;
                log2_dpte_req_width = log2_vmpg_width + 3;
                log2_dpte_req_height = 0;
        } else if (log2_blk_bytes == 12) { //4KB tile means 4kB page size
                //one 64B req gives 8x1 PTEs for 4KB tile
                log2_dpte_req_height_ptes = 0;
                log2_dpte_req_width = log2_blk_width + 3;
                log2_dpte_req_height = log2_blk_height + 0;
        } else if ((log2_blk_bytes >= 16) && (log2_vmpg_bytes == 12)) { // tile block >= 64KB
                //two 64B reqs of 2x4 PTEs give 16 PTEs to cover 64KB
                log2_dpte_req_height_ptes = 4;
                log2_dpte_req_width = log2_blk256_width + 4;            // log2_64KB_width
                log2_dpte_req_height = log2_blk256_height + 4;          // log2_64KB_height
        } else { //64KB page size and must 64KB tile block
                 //one 64B req gives 8x1 PTEs for 64KB tile
                log2_dpte_req_height_ptes = 0;
                log2_dpte_req_width = log2_blk_width + 3;
                log2_dpte_req_height = log2_blk_height + 0;
        }

        // The dpte request dimensions in data elements is dpte_req_width x dpte_req_height
        // log2_vmpg_width is how much 1 pte represent, now calculating how much a 64b pte req represent
        // That depends on the pte shape (i.e. 8x1, 4x2, 2x4)
        //log2_dpte_req_height    = log2_vmpg_height + log2_dpte_req_height_ptes;
        //log2_dpte_req_width     = log2_vmpg_width + log2_dpte_req_width_ptes;
        dpte_req_height = 1 << log2_dpte_req_height;
        dpte_req_width = 1 << log2_dpte_req_width;

        // calculate pitch dpte row buffer can hold
        // round the result down to a power of two.
        if (surf_linear) {
                unsigned int dpte_row_height;

                log2_dpte_row_height_linear = dml_floor(dml_log2(dpte_buf_in_pte_reqs * dpte_req_width / data_pitch), 1);

                dml_print("DML_DLG: %s: is_chroma                   = %d\n", __func__, is_chroma);
                dml_print("DML_DLG: %s: dpte_buf_in_pte_reqs        = %d\n", __func__, dpte_buf_in_pte_reqs);
                dml_print("DML_DLG: %s: log2_dpte_row_height_linear = %d\n", __func__, log2_dpte_row_height_linear);

                ASSERT(log2_dpte_row_height_linear >= 3);

                if (log2_dpte_row_height_linear > 7)
                        log2_dpte_row_height_linear = 7;

                log2_dpte_row_height = log2_dpte_row_height_linear;
                // For linear, the dpte row is pitch dependent and the pte requests wrap at the pitch boundary.
                // the dpte_row_width_ub is the upper bound of data_pitch*dpte_row_height in elements with this unique buffering.
                dpte_row_height = 1 << log2_dpte_row_height;
                dpte_row_width_ub = dml_round_to_multiple(data_pitch * dpte_row_height - 1, dpte_req_width, 1) + dpte_req_width;
                rq_dlg_param->dpte_req_per_row_ub = dpte_row_width_ub / dpte_req_width;
        } else {
                // the upper bound of the dpte_row_width without dependency on viewport position follows.
                // for tiled mode, row height is the same as req height and row store up to vp size upper bound
                if (!surf_vert) {
                        log2_dpte_row_height = log2_dpte_req_height;
                        dpte_row_width_ub = dml_round_to_multiple(vp_width - 1, dpte_req_width, 1) + dpte_req_width;
                        rq_dlg_param->dpte_req_per_row_ub = dpte_row_width_ub / dpte_req_width;
                } else {
                        log2_dpte_row_height = (log2_blk_width < log2_dpte_req_width) ? log2_blk_width : log2_dpte_req_width;
                        dpte_row_width_ub = dml_round_to_multiple(vp_height - 1, dpte_req_height, 1) + dpte_req_height;
                        rq_dlg_param->dpte_req_per_row_ub = dpte_row_width_ub / dpte_req_height;
                }
        }
        if (log2_blk_bytes >= 16 && log2_vmpg_bytes == 12) // tile block >= 64KB
                rq_dlg_param->dpte_bytes_per_row_ub = rq_dlg_param->dpte_req_per_row_ub * 128; //2*64B dpte request
        else
                rq_dlg_param->dpte_bytes_per_row_ub = rq_dlg_param->dpte_req_per_row_ub * 64; //64B dpte request

        rq_dlg_param->dpte_row_height = 1 << log2_dpte_row_height;

        // the dpte_group_bytes is reduced for the specific case of vertical
        // access of a tile surface that has dpte request of 8x1 ptes.
        if (hostvm_enable)
                rq_sizing_param->dpte_group_bytes = 512;
        else {
                if (!surf_linear & (log2_dpte_req_height_ptes == 0) & surf_vert) //reduced, in this case, will have page fault within a group
                        rq_sizing_param->dpte_group_bytes = 512;
                else
                        rq_sizing_param->dpte_group_bytes = 2048;
        }

        //since pte request size is 64byte, the number of data pte requests per full sized group is as follows.
        log2_dpte_group_bytes = dml_log2(rq_sizing_param->dpte_group_bytes);
        log2_dpte_group_length = log2_dpte_group_bytes - 6; //length in 64b requests

        // full sized data pte group width in elements
        if (!surf_vert)
                log2_dpte_group_width = log2_dpte_group_length + log2_dpte_req_width;
        else
                log2_dpte_group_width = log2_dpte_group_length + log2_dpte_req_height;

        //But if the tile block >=64KB and the page size is 4KB, then each dPTE request is 2*64B
        if ((log2_blk_bytes >= 16) && (log2_vmpg_bytes == 12)) // tile block >= 64KB
                log2_dpte_group_width = log2_dpte_group_width - 1;

        dpte_group_width = 1 << log2_dpte_group_width;

        // since dpte groups are only aligned to dpte_req_width and not dpte_group_width,
        // the upper bound for the dpte groups per row is as follows.
        rq_dlg_param->dpte_groups_per_row_ub = dml_ceil((double) dpte_row_width_ub / dpte_group_width, 1);
}

static void get_surf_rq_param(
                struct display_mode_lib *mode_lib,
                display_data_rq_sizing_params_st *rq_sizing_param,
                display_data_rq_dlg_params_st *rq_dlg_param,
                display_data_rq_misc_params_st *rq_misc_param,
                const display_pipe_params_st pipe_param,
                bool is_chroma,
                bool is_alpha)
{
        bool mode_422 = 0;
        unsigned int vp_width = 0;
        unsigned int vp_height = 0;
        unsigned int data_pitch = 0;
        unsigned int meta_pitch = 0;
        unsigned int surface_height = 0;
        unsigned int ppe = mode_422 ? 2 : 1;

        // FIXME check if ppe apply for both luma and chroma in 422 case
        if (is_chroma | is_alpha) {
                vp_width = pipe_param.src.viewport_width_c / ppe;
                vp_height = pipe_param.src.viewport_height_c;
                data_pitch = pipe_param.src.data_pitch_c;
                meta_pitch = pipe_param.src.meta_pitch_c;
                surface_height = pipe_param.src.surface_height_y / 2.0;
        } else {
                vp_width = pipe_param.src.viewport_width / ppe;
                vp_height = pipe_param.src.viewport_height;
                data_pitch = pipe_param.src.data_pitch;
                meta_pitch = pipe_param.src.meta_pitch;
                surface_height = pipe_param.src.surface_height_y;
        }

        if (pipe_param.dest.odm_combine) {
                unsigned int access_dir;
                unsigned int full_src_vp_width;
                unsigned int hactive_odm;
                unsigned int src_hactive_odm;

                access_dir = (pipe_param.src.source_scan == dm_vert); // vp access direction: horizontal or vertical accessed
                hactive_odm = pipe_param.dest.hactive / ((unsigned int) pipe_param.dest.odm_combine * 2);
                if (is_chroma) {
                        full_src_vp_width = pipe_param.scale_ratio_depth.hscl_ratio_c * pipe_param.dest.full_recout_width;
                        src_hactive_odm = pipe_param.scale_ratio_depth.hscl_ratio_c * hactive_odm;
                } else {
                        full_src_vp_width = pipe_param.scale_ratio_depth.hscl_ratio * pipe_param.dest.full_recout_width;
                        src_hactive_odm = pipe_param.scale_ratio_depth.hscl_ratio * hactive_odm;
                }

                if (access_dir == 0) {
                        vp_width = dml_min(full_src_vp_width, src_hactive_odm);
                        dml_print("DML_DLG: %s: vp_width = %d\n", __func__, vp_width);
                } else {
                        vp_height = dml_min(full_src_vp_width, src_hactive_odm);
                        dml_print("DML_DLG: %s: vp_height = %d\n", __func__, vp_height);

                }
                dml_print("DML_DLG: %s: full_src_vp_width = %d\n", __func__, full_src_vp_width);
                dml_print("DML_DLG: %s: hactive_odm = %d\n", __func__, hactive_odm);
                dml_print("DML_DLG: %s: src_hactive_odm = %d\n", __func__, src_hactive_odm);
        }

        rq_sizing_param->chunk_bytes = 8192;

        if (is_alpha) {
                rq_sizing_param->chunk_bytes = 4096;
        }

        if (rq_sizing_param->chunk_bytes == 64 * 1024)
                rq_sizing_param->min_chunk_bytes = 0;
        else
                rq_sizing_param->min_chunk_bytes = 1024;

        rq_sizing_param->meta_chunk_bytes = 2048;
        rq_sizing_param->min_meta_chunk_bytes = 256;

        if (pipe_param.src.hostvm)
                rq_sizing_param->mpte_group_bytes = 512;
        else
                rq_sizing_param->mpte_group_bytes = 2048;

        get_meta_and_pte_attr(
                        mode_lib,
                        rq_dlg_param,
                        rq_misc_param,
                        rq_sizing_param,
                        vp_width,
                        vp_height,
                        data_pitch,
                        meta_pitch,
                        pipe_param.src.source_format,
                        pipe_param.src.sw_mode,
                        pipe_param.src.macro_tile_size,
                        pipe_param.src.source_scan,
                        pipe_param.src.hostvm,
                        is_chroma,
                        surface_height);
}

static void dml_rq_dlg_get_rq_params(struct display_mode_lib *mode_lib, display_rq_params_st *rq_param, const display_pipe_params_st pipe_param)
{
        // get param for luma surface
        rq_param->yuv420 = pipe_param.src.source_format == dm_420_8 || pipe_param.src.source_format == dm_420_10 || pipe_param.src.source_format == dm_rgbe_alpha
                        || pipe_param.src.source_format == dm_420_12;

        rq_param->yuv420_10bpc = pipe_param.src.source_format == dm_420_10;

        rq_param->rgbe_alpha = (pipe_param.src.source_format == dm_rgbe_alpha) ? 1 : 0;

        get_surf_rq_param(mode_lib, &(rq_param->sizing.rq_l), &(rq_param->dlg.rq_l), &(rq_param->misc.rq_l), pipe_param, 0, 0);

        if (is_dual_plane((enum source_format_class) (pipe_param.src.source_format))) {
                // get param for chroma surface
                get_surf_rq_param(mode_lib, &(rq_param->sizing.rq_c), &(rq_param->dlg.rq_c), &(rq_param->misc.rq_c), pipe_param, 1, rq_param->rgbe_alpha);
        }

        // calculate how to split the det buffer space between luma and chroma
        handle_det_buf_split(mode_lib, rq_param, pipe_param.src);
        print__rq_params_st(mode_lib, *rq_param);
}

void dml31_rq_dlg_get_rq_reg(struct display_mode_lib *mode_lib, display_rq_regs_st *rq_regs, const display_pipe_params_st pipe_param)
{
        display_rq_params_st rq_param = {0};

        memset(rq_regs, 0, sizeof(*rq_regs));
        dml_rq_dlg_get_rq_params(mode_lib, &rq_param, pipe_param);
        extract_rq_regs(mode_lib, rq_regs, rq_param);

        print__rq_regs_st(mode_lib, *rq_regs);
}

static void calculate_ttu_cursor(
                struct display_mode_lib *mode_lib,
                double *refcyc_per_req_delivery_pre_cur,
                double *refcyc_per_req_delivery_cur,
                double refclk_freq_in_mhz,
                double ref_freq_to_pix_freq,
                double hscale_pixel_rate_l,
                double hscl_ratio,
                double vratio_pre_l,
                double vratio_l,
                unsigned int cur_width,
                enum cursor_bpp cur_bpp)
{
        unsigned int cur_src_width = cur_width;
        unsigned int cur_req_size = 0;
        unsigned int cur_req_width = 0;
        double cur_width_ub = 0.0;
        double cur_req_per_width = 0.0;
        double hactive_cur = 0.0;

        ASSERT(cur_src_width <= 256);

        *refcyc_per_req_delivery_pre_cur = 0.0;
        *refcyc_per_req_delivery_cur = 0.0;
        if (cur_src_width > 0) {
                unsigned int cur_bit_per_pixel = 0;

                if (cur_bpp == dm_cur_2bit) {
                        cur_req_size = 64; // byte
                        cur_bit_per_pixel = 2;
                } else { // 32bit
                        cur_bit_per_pixel = 32;
                        if (cur_src_width >= 1 && cur_src_width <= 16)
                                cur_req_size = 64;
                        else if (cur_src_width >= 17 && cur_src_width <= 31)
                                cur_req_size = 128;
                        else
                                cur_req_size = 256;
                }

                cur_req_width = (double) cur_req_size / ((double) cur_bit_per_pixel / 8.0);
                cur_width_ub = dml_ceil((double) cur_src_width / (double) cur_req_width, 1) * (double) cur_req_width;
                cur_req_per_width = cur_width_ub / (double) cur_req_width;
                hactive_cur = (double) cur_src_width / hscl_ratio; // FIXME: oswin to think about what to do for cursor

                if (vratio_pre_l <= 1.0) {
                        *refcyc_per_req_delivery_pre_cur = hactive_cur * ref_freq_to_pix_freq / (double) cur_req_per_width;
                } else {
                        *refcyc_per_req_delivery_pre_cur = (double) refclk_freq_in_mhz * (double) cur_src_width / hscale_pixel_rate_l / (double) cur_req_per_width;
                }

                ASSERT(*refcyc_per_req_delivery_pre_cur < dml_pow(2, 13));

                if (vratio_l <= 1.0) {
                        *refcyc_per_req_delivery_cur = hactive_cur * ref_freq_to_pix_freq / (double) cur_req_per_width;
                } else {
                        *refcyc_per_req_delivery_cur = (double) refclk_freq_in_mhz * (double) cur_src_width / hscale_pixel_rate_l / (double) cur_req_per_width;
                }

                dml_print("DML_DLG: %s: cur_req_width                     = %d\n", __func__, cur_req_width);
                dml_print("DML_DLG: %s: cur_width_ub                      = %3.2f\n", __func__, cur_width_ub);
                dml_print("DML_DLG: %s: cur_req_per_width                 = %3.2f\n", __func__, cur_req_per_width);
                dml_print("DML_DLG: %s: hactive_cur                       = %3.2f\n", __func__, hactive_cur);
                dml_print("DML_DLG: %s: refcyc_per_req_delivery_pre_cur   = %3.2f\n", __func__, *refcyc_per_req_delivery_pre_cur);
                dml_print("DML_DLG: %s: refcyc_per_req_delivery_cur       = %3.2f\n", __func__, *refcyc_per_req_delivery_cur);

                ASSERT(*refcyc_per_req_delivery_cur < dml_pow(2, 13));
        }
}

// Note: currently taken in as is.
// Nice to decouple code from hw register implement and extract code that are repeated for luma and chroma.
static void dml_rq_dlg_get_dlg_params(
                struct display_mode_lib *mode_lib,
                const display_e2e_pipe_params_st *e2e_pipe_param,
                const unsigned int num_pipes,
                const unsigned int pipe_idx,
                display_dlg_regs_st *disp_dlg_regs,
                display_ttu_regs_st *disp_ttu_regs,
                const display_rq_dlg_params_st rq_dlg_param,
                const display_dlg_sys_params_st dlg_sys_param,
                const bool cstate_en,
                const bool pstate_en,
                const bool vm_en,
                const bool ignore_viewport_pos,
                const bool immediate_flip_support)
{
        const display_pipe_source_params_st *src = &e2e_pipe_param[pipe_idx].pipe.src;
        const display_pipe_dest_params_st *dst = &e2e_pipe_param[pipe_idx].pipe.dest;
        const display_output_params_st *dout = &e2e_pipe_param[pipe_idx].dout;
        const display_clocks_and_cfg_st *clks = &e2e_pipe_param[pipe_idx].clks_cfg;
        const scaler_ratio_depth_st *scl = &e2e_pipe_param[pipe_idx].pipe.scale_ratio_depth;
        const scaler_taps_st *taps = &e2e_pipe_param[pipe_idx].pipe.scale_taps;
        unsigned int pipe_index_in_combine[DC__NUM_PIPES__MAX];

        // -------------------------
        // Section 1.15.2.1: OTG dependent Params
        // -------------------------
        // Timing
        unsigned int htotal = dst->htotal;
        unsigned int hblank_end = dst->hblank_end;
        unsigned int vblank_start = dst->vblank_start;
        unsigned int vblank_end = dst->vblank_end;

        double dppclk_freq_in_mhz = clks->dppclk_mhz;
        double refclk_freq_in_mhz = clks->refclk_mhz;
        double pclk_freq_in_mhz = dst->pixel_rate_mhz;
        bool interlaced = dst->interlaced;
        double ref_freq_to_pix_freq = refclk_freq_in_mhz / pclk_freq_in_mhz;
        double min_ttu_vblank;
        unsigned int dlg_vblank_start;
        bool dual_plane;
        bool mode_422;
        unsigned int access_dir;
        unsigned int vp_height_l;
        unsigned int vp_width_l;
        unsigned int vp_height_c;
        unsigned int vp_width_c;

        // Scaling
        unsigned int htaps_l;
        unsigned int htaps_c;
        double hratio_l;
        double hratio_c;
        double vratio_l;
        double vratio_c;
        bool scl_enable;

        unsigned int swath_width_ub_l;
        unsigned int dpte_groups_per_row_ub_l;
        unsigned int swath_width_ub_c;
        unsigned int dpte_groups_per_row_ub_c;

        unsigned int meta_chunks_per_row_ub_l;

        unsigned int meta_chunks_per_row_ub_c;
        unsigned int vupdate_offset;
        unsigned int vupdate_width;
        unsigned int vready_offset;

        unsigned int dppclk_delay_subtotal;
        unsigned int dispclk_delay_subtotal;

        unsigned int vstartup_start;
        unsigned int dst_x_after_scaler;
        unsigned int dst_y_after_scaler;
        double dst_y_prefetch;
        double dst_y_per_vm_vblank;
        double dst_y_per_row_vblank;
        double dst_y_per_vm_flip;
        double dst_y_per_row_flip;
        double max_dst_y_per_vm_vblank;
        double max_dst_y_per_row_vblank;
        double vratio_pre_l;
        double vratio_pre_c;
        unsigned int req_per_swath_ub_l;
        unsigned int req_per_swath_ub_c;
        unsigned int meta_row_height_l;
        unsigned int meta_row_height_c;
        unsigned int swath_width_pixels_ub_l;
        unsigned int swath_width_pixels_ub_c;
        unsigned int scaler_rec_in_width_l;
        unsigned int scaler_rec_in_width_c;
        unsigned int dpte_row_height_l;
        unsigned int dpte_row_height_c;
        double hscale_pixel_rate_l;
        double hscale_pixel_rate_c;
        double min_hratio_fact_l;
        double min_hratio_fact_c;
        double refcyc_per_line_delivery_pre_l;
        double refcyc_per_line_delivery_pre_c;
        double refcyc_per_line_delivery_l;
        double refcyc_per_line_delivery_c;

        double refcyc_per_req_delivery_pre_l;
        double refcyc_per_req_delivery_pre_c;
        double refcyc_per_req_delivery_l;
        double refcyc_per_req_delivery_c;

        unsigned int full_recout_width;
        double refcyc_per_req_delivery_pre_cur0;
        double refcyc_per_req_delivery_cur0;
        double refcyc_per_req_delivery_pre_cur1;
        double refcyc_per_req_delivery_cur1;
        int unsigned vba__min_dst_y_next_start = get_min_dst_y_next_start(mode_lib, e2e_pipe_param, num_pipes, pipe_idx); // FROM VBA
        int unsigned vba__vready_after_vcount0 = get_vready_at_or_after_vsync(mode_lib, e2e_pipe_param, num_pipes, pipe_idx); // From VBA

        float vba__refcyc_per_line_delivery_pre_l = get_refcyc_per_line_delivery_pre_l_in_us(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz; // From VBA
        float vba__refcyc_per_line_delivery_l = get_refcyc_per_line_delivery_l_in_us(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz; // From VBA

        float vba__refcyc_per_req_delivery_pre_l = get_refcyc_per_req_delivery_pre_l_in_us(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz;  // From VBA
        float vba__refcyc_per_req_delivery_l = get_refcyc_per_req_delivery_l_in_us(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz;  // From VBA

        memset(disp_dlg_regs, 0, sizeof(*disp_dlg_regs));
        memset(disp_ttu_regs, 0, sizeof(*disp_ttu_regs));

        dml_print("DML_DLG: %s: cstate_en = %d\n", __func__, cstate_en);
        dml_print("DML_DLG: %s: pstate_en = %d\n", __func__, pstate_en);
        dml_print("DML_DLG: %s: vm_en     = %d\n", __func__, vm_en);
        dml_print("DML_DLG: %s: ignore_viewport_pos  = %d\n", __func__, ignore_viewport_pos);
        dml_print("DML_DLG: %s: immediate_flip_support  = %d\n", __func__, immediate_flip_support);

        dml_print("DML_DLG: %s: dppclk_freq_in_mhz     = %3.2f\n", __func__, dppclk_freq_in_mhz);
        dml_print("DML_DLG: %s: refclk_freq_in_mhz     = %3.2f\n", __func__, refclk_freq_in_mhz);
        dml_print("DML_DLG: %s: pclk_freq_in_mhz       = %3.2f\n", __func__, pclk_freq_in_mhz);
        dml_print("DML_DLG: %s: interlaced             = %d\n", __func__, interlaced); ASSERT(ref_freq_to_pix_freq < 4.0);

        disp_dlg_regs->ref_freq_to_pix_freq = (unsigned int) (ref_freq_to_pix_freq * dml_pow(2, 19));
        disp_dlg_regs->refcyc_per_htotal = (unsigned int) (ref_freq_to_pix_freq * (double) htotal * dml_pow(2, 8));
        disp_dlg_regs->dlg_vblank_end = interlaced ? (vblank_end / 2) : vblank_end;     // 15 bits

        //set_prefetch_mode(mode_lib, cstate_en, pstate_en, ignore_viewport_pos, immediate_flip_support);
        min_ttu_vblank = get_min_ttu_vblank_in_us(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);       // From VBA

        dlg_vblank_start = interlaced ? (vblank_start / 2) : vblank_start;

        disp_dlg_regs->min_dst_y_next_start = (unsigned int) (((double) dlg_vblank_start) * dml_pow(2, 2));
        ASSERT(disp_dlg_regs->min_dst_y_next_start < (unsigned int)dml_pow(2, 18));

        dml_print("DML_DLG: %s: min_ttu_vblank (us)         = %3.2f\n", __func__, min_ttu_vblank);
        dml_print("DML_DLG: %s: min_dst_y_next_start        = 0x%0x\n", __func__, disp_dlg_regs->min_dst_y_next_start);
        dml_print("DML_DLG: %s: dlg_vblank_start            = 0x%0x\n", __func__, dlg_vblank_start);
        dml_print("DML_DLG: %s: ref_freq_to_pix_freq        = %3.2f\n", __func__, ref_freq_to_pix_freq);
        dml_print("DML_DLG: %s: vba__min_dst_y_next_start   = 0x%0x\n", __func__, vba__min_dst_y_next_start);

        //old_impl_vs_vba_impl("min_dst_y_next_start", dlg_vblank_start, vba__min_dst_y_next_start);

        // -------------------------
        // Section 1.15.2.2: Prefetch, Active and TTU
        // -------------------------
        // Prefetch Calc
        // Source
        dual_plane = is_dual_plane((enum source_format_class) (src->source_format));
        mode_422 = 0;
        access_dir = (src->source_scan == dm_vert);     // vp access direction: horizontal or vertical accessed
        vp_height_l = src->viewport_height;
        vp_width_l = src->viewport_width;
        vp_height_c = src->viewport_height_c;
        vp_width_c = src->viewport_width_c;

        // Scaling
        htaps_l = taps->htaps;
        htaps_c = taps->htaps_c;
        hratio_l = scl->hscl_ratio;
        hratio_c = scl->hscl_ratio_c;
        vratio_l = scl->vscl_ratio;
        vratio_c = scl->vscl_ratio_c;
        scl_enable = scl->scl_enable;

        swath_width_ub_l = rq_dlg_param.rq_l.swath_width_ub;
        dpte_groups_per_row_ub_l = rq_dlg_param.rq_l.dpte_groups_per_row_ub;
        swath_width_ub_c = rq_dlg_param.rq_c.swath_width_ub;
        dpte_groups_per_row_ub_c = rq_dlg_param.rq_c.dpte_groups_per_row_ub;

        meta_chunks_per_row_ub_l = rq_dlg_param.rq_l.meta_chunks_per_row_ub;
        meta_chunks_per_row_ub_c = rq_dlg_param.rq_c.meta_chunks_per_row_ub;
        vupdate_offset = dst->vupdate_offset;
        vupdate_width = dst->vupdate_width;
        vready_offset = dst->vready_offset;

        dppclk_delay_subtotal = mode_lib->ip.dppclk_delay_subtotal;
        dispclk_delay_subtotal = mode_lib->ip.dispclk_delay_subtotal;

        if (scl_enable)
                dppclk_delay_subtotal += mode_lib->ip.dppclk_delay_scl;
        else
                dppclk_delay_subtotal += mode_lib->ip.dppclk_delay_scl_lb_only;

        dppclk_delay_subtotal += mode_lib->ip.dppclk_delay_cnvc_formatter + src->num_cursors * mode_lib->ip.dppclk_delay_cnvc_cursor;

        if (dout->dsc_enable) {
                double dsc_delay = get_dsc_delay(mode_lib, e2e_pipe_param, num_pipes, pipe_idx); // FROM VBA
                dispclk_delay_subtotal += dsc_delay;
        }

        vstartup_start = dst->vstartup_start;
        if (interlaced) {
                if (vstartup_start / 2.0 - (double) (vready_offset + vupdate_width + vupdate_offset) / htotal <= vblank_end / 2.0)
                        disp_dlg_regs->vready_after_vcount0 = 1;
                else
                        disp_dlg_regs->vready_after_vcount0 = 0;
        } else {
                if (vstartup_start - (double) (vready_offset + vupdate_width + vupdate_offset) / htotal <= vblank_end)
                        disp_dlg_regs->vready_after_vcount0 = 1;
                else
                        disp_dlg_regs->vready_after_vcount0 = 0;
        }

        dml_print("DML_DLG: %s: vready_after_vcount0 = %d\n", __func__, disp_dlg_regs->vready_after_vcount0);
        dml_print("DML_DLG: %s: vba__vready_after_vcount0 = %d\n", __func__, vba__vready_after_vcount0);
        //old_impl_vs_vba_impl("vready_after_vcount0", disp_dlg_regs->vready_after_vcount0, vba__vready_after_vcount0);

        if (interlaced)
                vstartup_start = vstartup_start / 2;

        dst_x_after_scaler = get_dst_x_after_scaler(mode_lib, e2e_pipe_param, num_pipes, pipe_idx); // From VBA
        dst_y_after_scaler = get_dst_y_after_scaler(mode_lib, e2e_pipe_param, num_pipes, pipe_idx); // From VBA

        // do some adjustment on the dst_after scaler to account for odm combine mode
        dml_print("DML_DLG: %s: input dst_x_after_scaler   = %d\n", __func__, dst_x_after_scaler);
        dml_print("DML_DLG: %s: input dst_y_after_scaler   = %d\n", __func__, dst_y_after_scaler);

        // need to figure out which side of odm combine we're in
        if (dst->odm_combine) {
                // figure out which pipes go together
                bool visited[DC__NUM_PIPES__MAX];
                unsigned int i, j, k;

                for (k = 0; k < num_pipes; ++k) {
                        visited[k] = false;
                        pipe_index_in_combine[k] = 0;
                }

                for (i = 0; i < num_pipes; i++) {
                        if (e2e_pipe_param[i].pipe.src.is_hsplit && !visited[i]) {

                                unsigned int grp = e2e_pipe_param[i].pipe.src.hsplit_grp;
                                unsigned int grp_idx = 0;

                                for (j = i; j < num_pipes; j++) {
                                        if (e2e_pipe_param[j].pipe.src.hsplit_grp == grp && e2e_pipe_param[j].pipe.src.is_hsplit && !visited[j]) {
                                                pipe_index_in_combine[j] = grp_idx;
                                                dml_print("DML_DLG: %s: pipe[%d] is in grp %d idx %d\n", __func__, j, grp, grp_idx);
                                                grp_idx++;
                                                visited[j] = true;
                                        }
                                }
                        }
                }

        }

        if (dst->odm_combine == dm_odm_combine_mode_disabled) {
                disp_dlg_regs->refcyc_h_blank_end = (unsigned int) ((double) hblank_end * ref_freq_to_pix_freq);
        } else {
                unsigned int odm_combine_factor = (dst->odm_combine == dm_odm_combine_mode_2to1 ? 2 : 4); // TODO: We should really check that 4to1 is supported before setting it to 4
                unsigned int odm_pipe_index = pipe_index_in_combine[pipe_idx];
                disp_dlg_regs->refcyc_h_blank_end = (unsigned int) (((double) hblank_end + odm_pipe_index * (double) dst->hactive / odm_combine_factor) * ref_freq_to_pix_freq);
        } ASSERT(disp_dlg_regs->refcyc_h_blank_end < (unsigned int)dml_pow(2, 13));

        dml_print("DML_DLG: %s: htotal                     = %d\n", __func__, htotal);
        dml_print("DML_DLG: %s: dst_x_after_scaler[%d]     = %d\n", __func__, pipe_idx, dst_x_after_scaler);
        dml_print("DML_DLG: %s: dst_y_after_scaler[%d]     = %d\n", __func__, pipe_idx, dst_y_after_scaler);

        dst_y_prefetch = get_dst_y_prefetch(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);        // From VBA
        dst_y_per_vm_vblank = get_dst_y_per_vm_vblank(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);        // From VBA
        dst_y_per_row_vblank = get_dst_y_per_row_vblank(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);        // From VBA
        dst_y_per_vm_flip = get_dst_y_per_vm_flip(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);        // From VBA
        dst_y_per_row_flip = get_dst_y_per_row_flip(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);        // From VBA

        max_dst_y_per_vm_vblank = 32.0;        //U5.2
        max_dst_y_per_row_vblank = 16.0;        //U4.2

        // magic!
        if (htotal <= 75) {
                max_dst_y_per_vm_vblank = 100.0;
                max_dst_y_per_row_vblank = 100.0;
        }

        dml_print("DML_DLG: %s: dst_y_prefetch (after rnd) = %3.2f\n", __func__, dst_y_prefetch);
        dml_print("DML_DLG: %s: dst_y_per_vm_flip    = %3.2f\n", __func__, dst_y_per_vm_flip);
        dml_print("DML_DLG: %s: dst_y_per_row_flip   = %3.2f\n", __func__, dst_y_per_row_flip);
        dml_print("DML_DLG: %s: dst_y_per_vm_vblank  = %3.2f\n", __func__, dst_y_per_vm_vblank);
        dml_print("DML_DLG: %s: dst_y_per_row_vblank = %3.2f\n", __func__, dst_y_per_row_vblank);

        ASSERT(dst_y_per_vm_vblank < max_dst_y_per_vm_vblank); ASSERT(dst_y_per_row_vblank < max_dst_y_per_row_vblank);

        ASSERT(dst_y_prefetch > (dst_y_per_vm_vblank + dst_y_per_row_vblank));

        vratio_pre_l = get_vratio_prefetch_l(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);    // From VBA
        vratio_pre_c = get_vratio_prefetch_c(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);    // From VBA

        dml_print("DML_DLG: %s: vratio_pre_l = %3.2f\n", __func__, vratio_pre_l);
        dml_print("DML_DLG: %s: vratio_pre_c = %3.2f\n", __func__, vratio_pre_c);

        // Active
        req_per_swath_ub_l = rq_dlg_param.rq_l.req_per_swath_ub;
        req_per_swath_ub_c = rq_dlg_param.rq_c.req_per_swath_ub;
        meta_row_height_l = rq_dlg_param.rq_l.meta_row_height;
        meta_row_height_c = rq_dlg_param.rq_c.meta_row_height;
        swath_width_pixels_ub_l = 0;
        swath_width_pixels_ub_c = 0;
        scaler_rec_in_width_l = 0;
        scaler_rec_in_width_c = 0;
        dpte_row_height_l = rq_dlg_param.rq_l.dpte_row_height;
        dpte_row_height_c = rq_dlg_param.rq_c.dpte_row_height;

        if (mode_422) {
                swath_width_pixels_ub_l = swath_width_ub_l * 2;  // *2 for 2 pixel per element
                swath_width_pixels_ub_c = swath_width_ub_c * 2;
        } else {
                swath_width_pixels_ub_l = swath_width_ub_l * 1;
                swath_width_pixels_ub_c = swath_width_ub_c * 1;
        }

        hscale_pixel_rate_l = 0.;
        hscale_pixel_rate_c = 0.;
        min_hratio_fact_l = 1.0;
        min_hratio_fact_c = 1.0;

        if (hratio_l <= 1)
                min_hratio_fact_l = 2.0;
        else if (htaps_l <= 6) {
                if ((hratio_l * 2.0) > 4.0)
                        min_hratio_fact_l = 4.0;
                else
                        min_hratio_fact_l = hratio_l * 2.0;
        } else {
                if (hratio_l > 4.0)
                        min_hratio_fact_l = 4.0;
                else
                        min_hratio_fact_l = hratio_l;
        }

        hscale_pixel_rate_l = min_hratio_fact_l * dppclk_freq_in_mhz;

        dml_print("DML_DLG: %s: hratio_l = %3.2f\n", __func__, hratio_l);
        dml_print("DML_DLG: %s: min_hratio_fact_l = %3.2f\n", __func__, min_hratio_fact_l);
        dml_print("DML_DLG: %s: hscale_pixel_rate_l = %3.2f\n", __func__, hscale_pixel_rate_l);

        if (hratio_c <= 1)
                min_hratio_fact_c = 2.0;
        else if (htaps_c <= 6) {
                if ((hratio_c * 2.0) > 4.0)
                        min_hratio_fact_c = 4.0;
                else
                        min_hratio_fact_c = hratio_c * 2.0;
        } else {
                if (hratio_c > 4.0)
                        min_hratio_fact_c = 4.0;
                else
                        min_hratio_fact_c = hratio_c;
        }

        hscale_pixel_rate_c = min_hratio_fact_c * dppclk_freq_in_mhz;

        refcyc_per_line_delivery_pre_l = 0.;
        refcyc_per_line_delivery_pre_c = 0.;
        refcyc_per_line_delivery_l = 0.;
        refcyc_per_line_delivery_c = 0.;

        refcyc_per_req_delivery_pre_l = 0.;
        refcyc_per_req_delivery_pre_c = 0.;
        refcyc_per_req_delivery_l = 0.;
        refcyc_per_req_delivery_c = 0.;

        full_recout_width = 0;
        // In ODM
        if (src->is_hsplit) {
                // This "hack"  is only allowed (and valid) for MPC combine. In ODM
                // combine, you MUST specify the full_recout_width...according to Oswin
                if (dst->full_recout_width == 0 && !dst->odm_combine) {
                        dml_print("DML_DLG: %s: Warning: full_recout_width not set in hsplit mode\n", __func__);
                        full_recout_width = dst->recout_width * 2; // assume half split for dcn1
                } else
                        full_recout_width = dst->full_recout_width;
        } else
                full_recout_width = dst->recout_width;

        // As of DCN2, mpc_combine and odm_combine are mutually exclusive
        refcyc_per_line_delivery_pre_l = get_refcyc_per_delivery(
                        mode_lib,
                        refclk_freq_in_mhz,
                        pclk_freq_in_mhz,
                        dst->odm_combine,
                        full_recout_width,
                        dst->hactive,
                        vratio_pre_l,
                        hscale_pixel_rate_l,
                        swath_width_pixels_ub_l,
                        1); // per line

        refcyc_per_line_delivery_l = get_refcyc_per_delivery(
                        mode_lib,
                        refclk_freq_in_mhz,
                        pclk_freq_in_mhz,
                        dst->odm_combine,
                        full_recout_width,
                        dst->hactive,
                        vratio_l,
                        hscale_pixel_rate_l,
                        swath_width_pixels_ub_l,
                        1); // per line

        dml_print("DML_DLG: %s: full_recout_width              = %d\n", __func__, full_recout_width);
        dml_print("DML_DLG: %s: hscale_pixel_rate_l            = %3.2f\n", __func__, hscale_pixel_rate_l);
        dml_print("DML_DLG: %s: refcyc_per_line_delivery_pre_l = %3.2f\n", __func__, refcyc_per_line_delivery_pre_l);
        dml_print("DML_DLG: %s: refcyc_per_line_delivery_l     = %3.2f\n", __func__, refcyc_per_line_delivery_l);
        dml_print("DML_DLG: %s: vba__refcyc_per_line_delivery_pre_l = %3.2f\n", __func__, vba__refcyc_per_line_delivery_pre_l);
        dml_print("DML_DLG: %s: vba__refcyc_per_line_delivery_l     = %3.2f\n", __func__, vba__refcyc_per_line_delivery_l);

        //old_impl_vs_vba_impl("refcyc_per_line_delivery_pre_l", refcyc_per_line_delivery_pre_l, vba__refcyc_per_line_delivery_pre_l);
        //old_impl_vs_vba_impl("refcyc_per_line_delivery_l", refcyc_per_line_delivery_l, vba__refcyc_per_line_delivery_l);

        if (dual_plane) {
                float vba__refcyc_per_line_delivery_pre_c = get_refcyc_per_line_delivery_pre_c_in_us(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz; // From VBA
                float vba__refcyc_per_line_delivery_c = get_refcyc_per_line_delivery_c_in_us(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz; // From VBA

                refcyc_per_line_delivery_pre_c = get_refcyc_per_delivery(
                                mode_lib,
                                refclk_freq_in_mhz,
                                pclk_freq_in_mhz,
                                dst->odm_combine,
                                full_recout_width,
                                dst->hactive,
                                vratio_pre_c,
                                hscale_pixel_rate_c,
                                swath_width_pixels_ub_c,
                                1); // per line

                refcyc_per_line_delivery_c = get_refcyc_per_delivery(
                                mode_lib,
                                refclk_freq_in_mhz,
                                pclk_freq_in_mhz,
                                dst->odm_combine,
                                full_recout_width,
                                dst->hactive,
                                vratio_c,
                                hscale_pixel_rate_c,
                                swath_width_pixels_ub_c,
                                1); // per line

                dml_print("DML_DLG: %s: refcyc_per_line_delivery_pre_c = %3.2f\n", __func__, refcyc_per_line_delivery_pre_c);
                dml_print("DML_DLG: %s: refcyc_per_line_delivery_c     = %3.2f\n", __func__, refcyc_per_line_delivery_c);
                dml_print("DML_DLG: %s: vba__refcyc_per_line_delivery_pre_c = %3.2f\n", __func__, vba__refcyc_per_line_delivery_pre_c);
                dml_print("DML_DLG: %s: vba__refcyc_per_line_delivery_c     = %3.2f\n", __func__, vba__refcyc_per_line_delivery_c);

                //old_impl_vs_vba_impl("refcyc_per_line_delivery_pre_c", refcyc_per_line_delivery_pre_c, vba__refcyc_per_line_delivery_pre_c);
                //old_impl_vs_vba_impl("refcyc_per_line_delivery_c", refcyc_per_line_delivery_c, vba__refcyc_per_line_delivery_c);
        }

        if (src->dynamic_metadata_enable && src->gpuvm)
                disp_dlg_regs->refcyc_per_vm_dmdata = get_refcyc_per_vm_dmdata_in_us(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz; // From VBA

        disp_dlg_regs->dmdata_dl_delta = get_dmdata_dl_delta_in_us(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz; // From VBA

        // TTU - Luma / Chroma
        if (access_dir) {  // vertical access
                scaler_rec_in_width_l = vp_height_l;
                scaler_rec_in_width_c = vp_height_c;
        } else {
                scaler_rec_in_width_l = vp_width_l;
                scaler_rec_in_width_c = vp_width_c;
        }

        refcyc_per_req_delivery_pre_l = get_refcyc_per_delivery(
                        mode_lib,
                        refclk_freq_in_mhz,
                        pclk_freq_in_mhz,
                        dst->odm_combine,
                        full_recout_width,
                        dst->hactive,
                        vratio_pre_l,
                        hscale_pixel_rate_l,
                        scaler_rec_in_width_l,
                        req_per_swath_ub_l);  // per req

        refcyc_per_req_delivery_l = get_refcyc_per_delivery(
                        mode_lib,
                        refclk_freq_in_mhz,
                        pclk_freq_in_mhz,
                        dst->odm_combine,
                        full_recout_width,
                        dst->hactive,
                        vratio_l,
                        hscale_pixel_rate_l,
                        scaler_rec_in_width_l,
                        req_per_swath_ub_l);  // per req

        dml_print("DML_DLG: %s: refcyc_per_req_delivery_pre_l = %3.2f\n", __func__, refcyc_per_req_delivery_pre_l);
        dml_print("DML_DLG: %s: refcyc_per_req_delivery_l     = %3.2f\n", __func__, refcyc_per_req_delivery_l);
        dml_print("DML_DLG: %s: vba__refcyc_per_req_delivery_pre_l = %3.2f\n", __func__, vba__refcyc_per_req_delivery_pre_l);
        dml_print("DML_DLG: %s: vba__refcyc_per_req_delivery_l     = %3.2f\n", __func__, vba__refcyc_per_req_delivery_l);

        //old_impl_vs_vba_impl("refcyc_per_req_delivery_pre_l", refcyc_per_req_delivery_pre_l, vba__refcyc_per_req_delivery_pre_l);
        //old_impl_vs_vba_impl("refcyc_per_req_delivery_l", refcyc_per_req_delivery_l, vba__refcyc_per_req_delivery_l);

        ASSERT(refcyc_per_req_delivery_pre_l < dml_pow(2, 13)); ASSERT(refcyc_per_req_delivery_l < dml_pow(2, 13));

        if (dual_plane) {
                float vba__refcyc_per_req_delivery_pre_c = get_refcyc_per_req_delivery_pre_c_in_us(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz;  // From VBA
                float vba__refcyc_per_req_delivery_c = get_refcyc_per_req_delivery_c_in_us(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz;  // From VBA

                refcyc_per_req_delivery_pre_c = get_refcyc_per_delivery(
                                mode_lib,
                                refclk_freq_in_mhz,
                                pclk_freq_in_mhz,
                                dst->odm_combine,
                                full_recout_width,
                                dst->hactive,
                                vratio_pre_c,
                                hscale_pixel_rate_c,
                                scaler_rec_in_width_c,
                                req_per_swath_ub_c);  // per req
                refcyc_per_req_delivery_c = get_refcyc_per_delivery(
                                mode_lib,
                                refclk_freq_in_mhz,
                                pclk_freq_in_mhz,
                                dst->odm_combine,
                                full_recout_width,
                                dst->hactive,
                                vratio_c,
                                hscale_pixel_rate_c,
                                scaler_rec_in_width_c,
                                req_per_swath_ub_c);  // per req

                dml_print("DML_DLG: %s: refcyc_per_req_delivery_pre_c = %3.2f\n", __func__, refcyc_per_req_delivery_pre_c);
                dml_print("DML_DLG: %s: refcyc_per_req_delivery_c     = %3.2f\n", __func__, refcyc_per_req_delivery_c);
                dml_print("DML_DLG: %s: vba__refcyc_per_req_delivery_pre_c = %3.2f\n", __func__, vba__refcyc_per_req_delivery_pre_c);
                dml_print("DML_DLG: %s: vba__refcyc_per_req_delivery_c     = %3.2f\n", __func__, vba__refcyc_per_req_delivery_c);

                //old_impl_vs_vba_impl("refcyc_per_req_delivery_pre_c", refcyc_per_req_delivery_pre_c, vba__refcyc_per_req_delivery_pre_c);
                //old_impl_vs_vba_impl("refcyc_per_req_delivery_c", refcyc_per_req_delivery_c, vba__refcyc_per_req_delivery_c);

                ASSERT(refcyc_per_req_delivery_pre_c < dml_pow(2, 13)); ASSERT(refcyc_per_req_delivery_c < dml_pow(2, 13));
        }

        // TTU - Cursor
        refcyc_per_req_delivery_pre_cur0 = 0.0;
        refcyc_per_req_delivery_cur0 = 0.0;

        ASSERT(src->num_cursors <= 1);

        if (src->num_cursors > 0) {
                float vba__refcyc_per_req_delivery_pre_cur0;
                float vba__refcyc_per_req_delivery_cur0;

                calculate_ttu_cursor(
                                mode_lib,
                                &refcyc_per_req_delivery_pre_cur0,
                                &refcyc_per_req_delivery_cur0,
                                refclk_freq_in_mhz,
                                ref_freq_to_pix_freq,
                                hscale_pixel_rate_l,
                                scl->hscl_ratio,
                                vratio_pre_l,
                                vratio_l,
                                src->cur0_src_width,
                                (enum cursor_bpp) (src->cur0_bpp));

                vba__refcyc_per_req_delivery_pre_cur0 = get_refcyc_per_cursor_req_delivery_pre_in_us(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz; // From VBA
                vba__refcyc_per_req_delivery_cur0 = get_refcyc_per_cursor_req_delivery_in_us(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz; // From VBA

                dml_print("DML_DLG: %s: refcyc_per_req_delivery_pre_cur0 = %3.2f\n", __func__, refcyc_per_req_delivery_pre_cur0);
                dml_print("DML_DLG: %s: refcyc_per_req_delivery_cur0     = %3.2f\n", __func__, refcyc_per_req_delivery_cur0);
                dml_print("DML_DLG: %s: vba__refcyc_per_req_delivery_pre_cur0 = %3.2f\n", __func__, vba__refcyc_per_req_delivery_pre_cur0);
                dml_print("DML_DLG: %s: vba__refcyc_per_req_delivery_cur0     = %3.2f\n", __func__, vba__refcyc_per_req_delivery_cur0);

                //old_impl_vs_vba_impl("refcyc_per_req_delivery_pre_cur0", refcyc_per_req_delivery_pre_cur0, vba__refcyc_per_req_delivery_pre_cur0);
                //old_impl_vs_vba_impl("refcyc_per_req_delivery_cur0", refcyc_per_req_delivery_cur0, vba__refcyc_per_req_delivery_cur0);
        }

        refcyc_per_req_delivery_pre_cur1 = 0.0;
        refcyc_per_req_delivery_cur1 = 0.0;

        // TTU - Misc
        // all hard-coded

        // Assignment to register structures
        disp_dlg_regs->dst_y_after_scaler = dst_y_after_scaler; // in terms of line
        ASSERT(disp_dlg_regs->dst_y_after_scaler < (unsigned int)8);
        disp_dlg_regs->refcyc_x_after_scaler = dst_x_after_scaler * ref_freq_to_pix_freq;       // in terms of refclk
        ASSERT(disp_dlg_regs->refcyc_x_after_scaler < (unsigned int)dml_pow(2, 13));
        disp_dlg_regs->dst_y_prefetch = (unsigned int) (dst_y_prefetch * dml_pow(2, 2));
        disp_dlg_regs->dst_y_per_vm_vblank = (unsigned int) (dst_y_per_vm_vblank * dml_pow(2, 2));
        disp_dlg_regs->dst_y_per_row_vblank = (unsigned int) (dst_y_per_row_vblank * dml_pow(2, 2));
        disp_dlg_regs->dst_y_per_vm_flip = (unsigned int) (dst_y_per_vm_flip * dml_pow(2, 2));
        disp_dlg_regs->dst_y_per_row_flip = (unsigned int) (dst_y_per_row_flip * dml_pow(2, 2));

        disp_dlg_regs->vratio_prefetch = (unsigned int) (vratio_pre_l * dml_pow(2, 19));
        disp_dlg_regs->vratio_prefetch_c = (unsigned int) (vratio_pre_c * dml_pow(2, 19));

        dml_print("DML_DLG: %s: disp_dlg_regs->dst_y_per_vm_vblank  = 0x%x\n", __func__, disp_dlg_regs->dst_y_per_vm_vblank);
        dml_print("DML_DLG: %s: disp_dlg_regs->dst_y_per_row_vblank = 0x%x\n", __func__, disp_dlg_regs->dst_y_per_row_vblank);
        dml_print("DML_DLG: %s: disp_dlg_regs->dst_y_per_vm_flip    = 0x%x\n", __func__, disp_dlg_regs->dst_y_per_vm_flip);
        dml_print("DML_DLG: %s: disp_dlg_regs->dst_y_per_row_flip   = 0x%x\n", __func__, disp_dlg_regs->dst_y_per_row_flip);

        // hack for FPGA
        if (mode_lib->project == DML_PROJECT_DCN31_FPGA) {
                if (disp_dlg_regs->vratio_prefetch >= (unsigned int) dml_pow(2, 22)) {
                        disp_dlg_regs->vratio_prefetch = (unsigned int) dml_pow(2, 22) - 1;
                        dml_print("vratio_prefetch exceed the max value, the register field is [21:0]\n");
                }
        }

        disp_dlg_regs->refcyc_per_pte_group_vblank_l = (unsigned int) (dst_y_per_row_vblank * (double) htotal * ref_freq_to_pix_freq / (double) dpte_groups_per_row_ub_l);
        ASSERT(disp_dlg_regs->refcyc_per_pte_group_vblank_l < (unsigned int)dml_pow(2, 13));

        if (dual_plane) {
                disp_dlg_regs->refcyc_per_pte_group_vblank_c = (unsigned int) (dst_y_per_row_vblank * (double) htotal * ref_freq_to_pix_freq / (double) dpte_groups_per_row_ub_c);
                ASSERT(disp_dlg_regs->refcyc_per_pte_group_vblank_c < (unsigned int)dml_pow(2, 13));
        }

        disp_dlg_regs->refcyc_per_meta_chunk_vblank_l = (unsigned int) (dst_y_per_row_vblank * (double) htotal * ref_freq_to_pix_freq / (double) meta_chunks_per_row_ub_l);
        ASSERT(disp_dlg_regs->refcyc_per_meta_chunk_vblank_l < (unsigned int)dml_pow(2, 13));

        disp_dlg_regs->refcyc_per_meta_chunk_vblank_c = disp_dlg_regs->refcyc_per_meta_chunk_vblank_l; // dcc for 4:2:0 is not supported in dcn1.0.  assigned to be the same as _l for now

        disp_dlg_regs->refcyc_per_pte_group_flip_l = (unsigned int) (dst_y_per_row_flip * htotal * ref_freq_to_pix_freq) / dpte_groups_per_row_ub_l;
        disp_dlg_regs->refcyc_per_meta_chunk_flip_l = (unsigned int) (dst_y_per_row_flip * htotal * ref_freq_to_pix_freq) / meta_chunks_per_row_ub_l;

        if (dual_plane) {
                disp_dlg_regs->refcyc_per_pte_group_flip_c = (unsigned int) (dst_y_per_row_flip * htotal * ref_freq_to_pix_freq) / dpte_groups_per_row_ub_c;
                disp_dlg_regs->refcyc_per_meta_chunk_flip_c = (unsigned int) (dst_y_per_row_flip * htotal * ref_freq_to_pix_freq) / meta_chunks_per_row_ub_c;
        }

        disp_dlg_regs->refcyc_per_vm_group_vblank = get_refcyc_per_vm_group_vblank_in_us(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz;            // From VBA
        disp_dlg_regs->refcyc_per_vm_group_flip = get_refcyc_per_vm_group_flip_in_us(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz;            // From VBA
        disp_dlg_regs->refcyc_per_vm_req_vblank = get_refcyc_per_vm_req_vblank_in_us(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz * dml_pow(2, 10); // From VBA
        disp_dlg_regs->refcyc_per_vm_req_flip = get_refcyc_per_vm_req_flip_in_us(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz * dml_pow(2, 10);   // From VBA

        // Clamp to max for now
        if (disp_dlg_regs->refcyc_per_vm_group_vblank >= (unsigned int) dml_pow(2, 23))
                disp_dlg_regs->refcyc_per_vm_group_vblank = dml_pow(2, 23) - 1;

        if (disp_dlg_regs->refcyc_per_vm_group_flip >= (unsigned int) dml_pow(2, 23))
                disp_dlg_regs->refcyc_per_vm_group_flip = dml_pow(2, 23) - 1;

        if (disp_dlg_regs->refcyc_per_vm_req_vblank >= (unsigned int) dml_pow(2, 23))
                disp_dlg_regs->refcyc_per_vm_req_vblank = dml_pow(2, 23) - 1;

        if (disp_dlg_regs->refcyc_per_vm_req_flip >= (unsigned int) dml_pow(2, 23))
                disp_dlg_regs->refcyc_per_vm_req_flip = dml_pow(2, 23) - 1;

        disp_dlg_regs->dst_y_per_pte_row_nom_l = (unsigned int) ((double) dpte_row_height_l / (double) vratio_l * dml_pow(2, 2));
        ASSERT(disp_dlg_regs->dst_y_per_pte_row_nom_l < (unsigned int)dml_pow(2, 17));
        if (dual_plane) {
                disp_dlg_regs->dst_y_per_pte_row_nom_c = (unsigned int) ((double) dpte_row_height_c / (double) vratio_c * dml_pow(2, 2));
                if (disp_dlg_regs->dst_y_per_pte_row_nom_c >= (unsigned int) dml_pow(2, 17)) {
                        dml_print(
                                        "DML_DLG: %s: Warning dst_y_per_pte_row_nom_c %u larger than supported by register format U15.2 %u\n",
                                        __func__,
                                        disp_dlg_regs->dst_y_per_pte_row_nom_c,
                                        (unsigned int) dml_pow(2, 17) - 1);
                }
        }

        disp_dlg_regs->dst_y_per_meta_row_nom_l = (unsigned int) ((double) meta_row_height_l / (double) vratio_l * dml_pow(2, 2));
        ASSERT(disp_dlg_regs->dst_y_per_meta_row_nom_l < (unsigned int)dml_pow(2, 17));

        disp_dlg_regs->dst_y_per_meta_row_nom_c = (unsigned int) ((double) meta_row_height_c / (double) vratio_c * dml_pow(2, 2));
        ASSERT(disp_dlg_regs->dst_y_per_meta_row_nom_c < (unsigned int)dml_pow(2, 17));

        disp_dlg_regs->refcyc_per_pte_group_nom_l = (unsigned int) ((double) dpte_row_height_l / (double) vratio_l * (double) htotal * ref_freq_to_pix_freq
                        / (double) dpte_groups_per_row_ub_l);
        if (disp_dlg_regs->refcyc_per_pte_group_nom_l >= (unsigned int) dml_pow(2, 23))
                disp_dlg_regs->refcyc_per_pte_group_nom_l = dml_pow(2, 23) - 1;
        disp_dlg_regs->refcyc_per_meta_chunk_nom_l = (unsigned int) ((double) meta_row_height_l / (double) vratio_l * (double) htotal * ref_freq_to_pix_freq
                        / (double) meta_chunks_per_row_ub_l);
        if (disp_dlg_regs->refcyc_per_meta_chunk_nom_l >= (unsigned int) dml_pow(2, 23))
                disp_dlg_regs->refcyc_per_meta_chunk_nom_l = dml_pow(2, 23) - 1;

        if (dual_plane) {
                disp_dlg_regs->refcyc_per_pte_group_nom_c = (unsigned int) ((double) dpte_row_height_c / (double) vratio_c * (double) htotal * ref_freq_to_pix_freq
                                / (double) dpte_groups_per_row_ub_c);
                if (disp_dlg_regs->refcyc_per_pte_group_nom_c >= (unsigned int) dml_pow(2, 23))
                        disp_dlg_regs->refcyc_per_pte_group_nom_c = dml_pow(2, 23) - 1;

                // TODO: Is this the right calculation? Does htotal need to be halved?
                disp_dlg_regs->refcyc_per_meta_chunk_nom_c = (unsigned int) ((double) meta_row_height_c / (double) vratio_c * (double) htotal * ref_freq_to_pix_freq
                                / (double) meta_chunks_per_row_ub_c);
                if (disp_dlg_regs->refcyc_per_meta_chunk_nom_c >= (unsigned int) dml_pow(2, 23))
                        disp_dlg_regs->refcyc_per_meta_chunk_nom_c = dml_pow(2, 23) - 1;
        }

        disp_dlg_regs->refcyc_per_line_delivery_pre_l = (unsigned int) dml_floor(refcyc_per_line_delivery_pre_l, 1);
        disp_dlg_regs->refcyc_per_line_delivery_l = (unsigned int) dml_floor(refcyc_per_line_delivery_l, 1);
        ASSERT(disp_dlg_regs->refcyc_per_line_delivery_pre_l < (unsigned int)dml_pow(2, 13)); ASSERT(disp_dlg_regs->refcyc_per_line_delivery_l < (unsigned int)dml_pow(2, 13));

        disp_dlg_regs->refcyc_per_line_delivery_pre_c = (unsigned int) dml_floor(refcyc_per_line_delivery_pre_c, 1);
        disp_dlg_regs->refcyc_per_line_delivery_c = (unsigned int) dml_floor(refcyc_per_line_delivery_c, 1);
        ASSERT(disp_dlg_regs->refcyc_per_line_delivery_pre_c < (unsigned int)dml_pow(2, 13)); ASSERT(disp_dlg_regs->refcyc_per_line_delivery_c < (unsigned int)dml_pow(2, 13));

        disp_dlg_regs->chunk_hdl_adjust_cur0 = 3;
        disp_dlg_regs->dst_y_offset_cur0 = 0;
        disp_dlg_regs->chunk_hdl_adjust_cur1 = 3;
        disp_dlg_regs->dst_y_offset_cur1 = 0;

        disp_dlg_regs->dst_y_delta_drq_limit = 0x7fff; // off

        disp_ttu_regs->refcyc_per_req_delivery_pre_l = (unsigned int) (refcyc_per_req_delivery_pre_l * dml_pow(2, 10));
        disp_ttu_regs->refcyc_per_req_delivery_l = (unsigned int) (refcyc_per_req_delivery_l * dml_pow(2, 10));
        disp_ttu_regs->refcyc_per_req_delivery_pre_c = (unsigned int) (refcyc_per_req_delivery_pre_c * dml_pow(2, 10));
        disp_ttu_regs->refcyc_per_req_delivery_c = (unsigned int) (refcyc_per_req_delivery_c * dml_pow(2, 10));
        disp_ttu_regs->refcyc_per_req_delivery_pre_cur0 = (unsigned int) (refcyc_per_req_delivery_pre_cur0 * dml_pow(2, 10));
        disp_ttu_regs->refcyc_per_req_delivery_cur0 = (unsigned int) (refcyc_per_req_delivery_cur0 * dml_pow(2, 10));
        disp_ttu_regs->refcyc_per_req_delivery_pre_cur1 = (unsigned int) (refcyc_per_req_delivery_pre_cur1 * dml_pow(2, 10));
        disp_ttu_regs->refcyc_per_req_delivery_cur1 = (unsigned int) (refcyc_per_req_delivery_cur1 * dml_pow(2, 10));

        disp_ttu_regs->qos_level_low_wm = 0;
        ASSERT(disp_ttu_regs->qos_level_low_wm < dml_pow(2, 14));

        disp_ttu_regs->qos_level_high_wm = (unsigned int) (4.0 * (double) htotal * ref_freq_to_pix_freq);
        ASSERT(disp_ttu_regs->qos_level_high_wm < dml_pow(2, 14));

        disp_ttu_regs->qos_level_flip = 14;
        disp_ttu_regs->qos_level_fixed_l = 8;
        disp_ttu_regs->qos_level_fixed_c = 8;
        disp_ttu_regs->qos_level_fixed_cur0 = 8;
        disp_ttu_regs->qos_ramp_disable_l = 0;
        disp_ttu_regs->qos_ramp_disable_c = 0;
        disp_ttu_regs->qos_ramp_disable_cur0 = 0;

        disp_ttu_regs->min_ttu_vblank = min_ttu_vblank * refclk_freq_in_mhz;
        ASSERT(disp_ttu_regs->min_ttu_vblank < dml_pow(2, 24));

        print__ttu_regs_st(mode_lib, *disp_ttu_regs);
        print__dlg_regs_st(mode_lib, *disp_dlg_regs);
}

void dml31_rq_dlg_get_dlg_reg(
                struct display_mode_lib *mode_lib,
                display_dlg_regs_st *dlg_regs,
                display_ttu_regs_st *ttu_regs,
                display_e2e_pipe_params_st *e2e_pipe_param,
                const unsigned int num_pipes,
                const unsigned int pipe_idx,
                const bool cstate_en,
                const bool pstate_en,
                const bool vm_en,
                const bool ignore_viewport_pos,
                const bool immediate_flip_support)
{
        display_rq_params_st rq_param = {0};
        display_dlg_sys_params_st dlg_sys_param = {0};

        // Get watermark and Tex.
        dlg_sys_param.t_urg_wm_us = get_wm_urgent(mode_lib, e2e_pipe_param, num_pipes);
        dlg_sys_param.deepsleep_dcfclk_mhz = get_clk_dcf_deepsleep(mode_lib, e2e_pipe_param, num_pipes);
        dlg_sys_param.t_extra_us = get_urgent_extra_latency(mode_lib, e2e_pipe_param, num_pipes);
        dlg_sys_param.mem_trip_us = get_wm_memory_trip(mode_lib, e2e_pipe_param, num_pipes);
        dlg_sys_param.t_mclk_wm_us = get_wm_dram_clock_change(mode_lib, e2e_pipe_param, num_pipes);
        dlg_sys_param.t_sr_wm_us = get_wm_stutter_enter_exit(mode_lib, e2e_pipe_param, num_pipes);
        dlg_sys_param.total_flip_bw = get_total_immediate_flip_bw(mode_lib, e2e_pipe_param, num_pipes);
        dlg_sys_param.total_flip_bytes = get_total_immediate_flip_bytes(mode_lib, e2e_pipe_param, num_pipes);

        print__dlg_sys_params_st(mode_lib, dlg_sys_param);

        // system parameter calculation done

        dml_print("DML_DLG: Calculation for pipe[%d] start\n\n", pipe_idx);
        dml_rq_dlg_get_rq_params(mode_lib, &rq_param, e2e_pipe_param[pipe_idx].pipe);
        dml_rq_dlg_get_dlg_params(
                        mode_lib,
                        e2e_pipe_param,
                        num_pipes,
                        pipe_idx,
                        dlg_regs,
                        ttu_regs,
                        rq_param.dlg,
                        dlg_sys_param,
                        cstate_en,
                        pstate_en,
                        vm_en,
                        ignore_viewport_pos,
                        immediate_flip_support);
        dml_print("DML_DLG: Calculation for pipe[%d] end\n", pipe_idx);
}