xref: /Linux-v5.15/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_rq_dlg_calc_30.c

/*
 * Copyright 2020 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
 *
 */

#ifdef CONFIG_DRM_AMD_DC_DCN

#include "../display_mode_lib.h"
#include "../display_mode_vba.h"
#include "../dml_inline_defs.h"
#include "display_rq_dlg_calc_30.h"

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;
	}

	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: refcyc_per_delivery= %3.2f\n", __func__, refcyc_per_delivery);

	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)
{
	dml_print("DML_DLG: %s: rq_sizing param\n", __func__);
	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;

	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 / 64.0); // half to chroma
		} else {
			detile_buf_plane1_addr = dml_round_to_multiple((unsigned int)((2.0 * detile_buf_size_in_bytes) / 3.0),
				256,
				0) / 64.0; // 2/3 to chroma
		}
	}
	rq_regs->plane1_base_address = detile_buf_plane1_addr;
}

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 = false;
	bool req128_c = false;
	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;

	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;
	}

	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;

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

	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;

	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);
}

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 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 = 0;
	unsigned int bytes_per_element_y = 0;
	unsigned int bytes_per_element_c = 0;

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

	//full sized meta chunk width in unit of data elements
	unsigned int log2_meta_chunk_width = 0;
	unsigned int log2_min_meta_chunk_bytes = 0;
	unsigned int min_meta_chunk_width = 0;
	unsigned int meta_chunk_width = 0;
	unsigned int meta_chunk_per_row_int = 0;
	unsigned int meta_row_remainder = 0;
	unsigned int meta_chunk_threshold = 0;
	unsigned int meta_blk_bytes = 0;
	unsigned int meta_blk_height = 0;
	unsigned int meta_blk_width = 0;
	unsigned int meta_surface_bytes = 0;
	unsigned int vmpg_bytes = 0;
	unsigned int meta_pte_req_per_frame_ub = 0;
	unsigned int meta_pte_bytes_per_frame_ub = 0;
	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 = 0;
	double byte_per_pixel_det_c = 0;

	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 = 0;

		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 = 0;

		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_bytes = 4096;
	meta_blk_height = blk256_height * 64;
	meta_blk_width = meta_blk_bytes * 256 / bytes_per_element / meta_blk_height;
	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_blk_width              = %d\n", __func__, meta_blk_width);
	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 = 0;

		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 = 0;
		unsigned int full_src_vp_width = 0;
		unsigned int hactive_odm = 0;
		unsigned int src_hactive_odm = 0;
		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 dml30_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;

	// -------------------------
	// Section 1.15.2.1: OTG dependent Params
	// -------------------------
	// Timing
	unsigned int htotal = dst->htotal;
	//	unsigned int hblank_start = dst.hblank_start; // TODO: Remove
	unsigned int hblank_end = dst->hblank_end;
	unsigned int vblank_start = dst->vblank_start;
	unsigned int vblank_end = dst->vblank_end;
	unsigned int min_vblank = mode_lib->ip.min_vblank_lines;

	double dppclk_freq_in_mhz = clks->dppclk_mhz;
	double dispclk_freq_in_mhz = clks->dispclk_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_dcfclk_mhz = 0;
	double t_calc_us = 0;
	double min_ttu_vblank = 0;

	double min_dst_y_ttu_vblank = 0;
	unsigned int dlg_vblank_start = 0;
	bool dual_plane = false;
	bool mode_422 = false;
	unsigned int access_dir = 0;
	unsigned int vp_height_l = 0;
	unsigned int vp_width_l = 0;
	unsigned int vp_height_c = 0;
	unsigned int vp_width_c = 0;

	// Scaling
	unsigned int htaps_l = 0;
	unsigned int htaps_c = 0;
	double hratio_l = 0;
	double hratio_c = 0;
	double vratio_l = 0;
	double vratio_c = 0;
	bool scl_enable = false;

	double line_time_in_us = 0;
	//	double vinit_l;
	//	double vinit_c;
	//	double vinit_bot_l;
	//	double vinit_bot_c;

	//	unsigned int swath_height_l;
	unsigned int swath_width_ub_l = 0;
	//	unsigned int dpte_bytes_per_row_ub_l;
	unsigned int dpte_groups_per_row_ub_l = 0;
	//	unsigned int meta_pte_bytes_per_frame_ub_l;
	//	unsigned int meta_bytes_per_row_ub_l;

	//	unsigned int swath_height_c;
	unsigned int swath_width_ub_c = 0;
	//   unsigned int dpte_bytes_per_row_ub_c;
	unsigned int dpte_groups_per_row_ub_c = 0;

	unsigned int meta_chunks_per_row_ub_l = 0;
	unsigned int meta_chunks_per_row_ub_c = 0;
	unsigned int vupdate_offset = 0;
	unsigned int vupdate_width = 0;
	unsigned int vready_offset = 0;

	unsigned int dppclk_delay_subtotal = 0;
	unsigned int dispclk_delay_subtotal = 0;
	unsigned int pixel_rate_delay_subtotal = 0;

	unsigned int vstartup_start = 0;
	unsigned int dst_x_after_scaler = 0;
	unsigned int dst_y_after_scaler = 0;
	double line_wait = 0;
	double dst_y_prefetch = 0;
	double dst_y_per_vm_vblank = 0;
	double dst_y_per_row_vblank = 0;
	double dst_y_per_vm_flip = 0;
	double dst_y_per_row_flip = 0;
	double max_dst_y_per_vm_vblank = 0;
	double max_dst_y_per_row_vblank = 0;
	double lsw = 0;
	double vratio_pre_l = 0;
	double vratio_pre_c = 0;
	unsigned int req_per_swath_ub_l = 0;
	unsigned int req_per_swath_ub_c = 0;
	unsigned int meta_row_height_l = 0;
	unsigned int meta_row_height_c = 0;
	unsigned int swath_width_pixels_ub_l = 0;
	unsigned int swath_width_pixels_ub_c = 0;
	unsigned int scaler_rec_in_width_l = 0;
	unsigned int scaler_rec_in_width_c = 0;
	unsigned int dpte_row_height_l = 0;
	unsigned int dpte_row_height_c = 0;
	double hscale_pixel_rate_l = 0;
	double hscale_pixel_rate_c = 0;
	double min_hratio_fact_l = 0;
	double min_hratio_fact_c = 0;
	double refcyc_per_line_delivery_pre_l = 0;
	double refcyc_per_line_delivery_pre_c = 0;
	double refcyc_per_line_delivery_l = 0;
	double refcyc_per_line_delivery_c = 0;

	double refcyc_per_req_delivery_pre_l = 0;
	double refcyc_per_req_delivery_pre_c = 0;
	double refcyc_per_req_delivery_l = 0;
	double refcyc_per_req_delivery_c = 0;

	unsigned int full_recout_width = 0;
	double refcyc_per_req_delivery_pre_cur0 = 0;
	double refcyc_per_req_delivery_cur0 = 0;
	double refcyc_per_req_delivery_pre_cur1 = 0;
	double refcyc_per_req_delivery_cur1 = 0;

	unsigned int pipe_index_in_combine[DC__NUM_PIPES__MAX] = { 0 };

	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: dispclk_freq_in_mhz    = %3.2f\n", __func__, dispclk_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

	min_dcfclk_mhz = dlg_sys_param.deepsleep_dcfclk_mhz;
	t_calc_us = get_tcalc(mode_lib, e2e_pipe_param, num_pipes);
	min_ttu_vblank = get_min_ttu_vblank(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);

	min_dst_y_ttu_vblank = min_ttu_vblank * pclk_freq_in_mhz / (double)htotal;
	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_dcfclk_mhz                         = %3.2f\n",
		__func__,
		min_dcfclk_mhz);
	dml_print("DML_DLG: %s: min_ttu_vblank                         = %3.2f\n",
		__func__,
		min_ttu_vblank);
	dml_print("DML_DLG: %s: min_dst_y_ttu_vblank                   = %3.2f\n",
		__func__,
		min_dst_y_ttu_vblank);
	dml_print("DML_DLG: %s: t_calc_us                              = %3.2f\n",
		__func__,
		t_calc_us);
	dml_print("DML_DLG: %s: disp_dlg_regs->min_dst_y_next_start    = 0x%0x\n",
		__func__,
		disp_dlg_regs->min_dst_y_next_start);
	dml_print("DML_DLG: %s: ref_freq_to_pix_freq                   = %3.2f\n",
		__func__,
		ref_freq_to_pix_freq);

	// -------------------------
	// Section 1.15.2.2: Prefetch, Active and TTU
	// -------------------------
	// Prefetch Calc
	// Source
	//			 dcc_en			  = src.dcc;
	dual_plane = is_dual_plane((enum source_format_class)(src->source_format));
	mode_422 = false; // TODO
	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;

	line_time_in_us = (htotal / pclk_freq_in_mhz);
	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);

		dispclk_delay_subtotal += dsc_delay;
	}

	pixel_rate_delay_subtotal = dppclk_delay_subtotal * pclk_freq_in_mhz / dppclk_freq_in_mhz
		+ dispclk_delay_subtotal * pclk_freq_in_mhz / dispclk_freq_in_mhz;

	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;
	}

	// TODO: Where is this coming from?
	if (interlaced)
		vstartup_start = vstartup_start / 2;

	// TODO: What if this min_vblank doesn't match the value in the dml_config_settings.cpp?
	if (vstartup_start >= min_vblank) {
		dml_print("WARNING: DML_DLG: %s: vblank_start=%d vblank_end=%d\n",
			__func__,
			vblank_start,
			vblank_end);
		dml_print("WARNING: DML_DLG: %s: vstartup_start=%d should be less than min_vblank=%d\n",
			__func__,
			vstartup_start,
			min_vblank);
		min_vblank = vstartup_start + 1;
		dml_print("WARNING: DML_DLG: %s: vstartup_start=%d should be less than min_vblank=%d\n",
			__func__,
			vstartup_start,
			min_vblank);
	}

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

	// 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] = { false };
		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: pixel_rate_delay_subtotal                  = %d\n",
		__func__,
		pixel_rate_delay_subtotal);
	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);

	// Lwait
		// TODO: Should this be urgent_latency_pixel_mixed_with_vm_data_us?
	line_wait = mode_lib->soc.urgent_latency_pixel_data_only_us;
	if (cstate_en)
		line_wait = dml_max(mode_lib->soc.sr_enter_plus_exit_time_us, line_wait);
	if (pstate_en)
		line_wait = dml_max(mode_lib->soc.dram_clock_change_latency_us
			+ mode_lib->soc.urgent_latency_pixel_data_only_us, // TODO: Should this be urgent_latency_pixel_mixed_with_vm_data_us?
			line_wait);
	line_wait = line_wait / line_time_in_us;

	dst_y_prefetch = get_dst_y_prefetch(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
	dml_print("DML_DLG: %s: dst_y_prefetch (after rnd) = %3.2f\n", __func__, dst_y_prefetch);

	dst_y_per_vm_vblank = get_dst_y_per_vm_vblank(mode_lib,
		e2e_pipe_param,
		num_pipes,
		pipe_idx);
	dst_y_per_row_vblank = get_dst_y_per_row_vblank(mode_lib,
		e2e_pipe_param,
		num_pipes,
		pipe_idx);
	dst_y_per_vm_flip = get_dst_y_per_vm_flip(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
	dst_y_per_row_flip = get_dst_y_per_row_flip(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);

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

	// magic!
	if (htotal <= 75) {
		min_vblank = 300;
		max_dst_y_per_vm_vblank = 100.0;
		max_dst_y_per_row_vblank = 100.0;
	}

	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));
	lsw = dst_y_prefetch - (dst_y_per_vm_vblank + dst_y_per_row_vblank);

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

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

	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;

	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);

	if (dual_plane) {
		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);
	}

	// smehta: this is a hack added until we get the real dml, sorry, need to make progress
	if (src->dynamic_metadata_enable && src->gpuvm) {
		unsigned int levels = mode_lib->ip.gpuvm_max_page_table_levels;
		double ref_cycles;

		if (src->hostvm)
			levels = levels * (mode_lib->ip.hostvm_max_page_table_levels+1);

		ref_cycles = (levels * mode_lib->soc.urgent_latency_vm_data_only_us) * refclk_freq_in_mhz;
		dml_print("BENyamin:    dst_y_prefetch                  = %f %d %f %f \n",
			ref_cycles, levels, mode_lib->soc.urgent_latency_vm_data_only_us, refclk_freq_in_mhz);
		disp_dlg_regs->refcyc_per_vm_dmdata = (unsigned int) ref_cycles;
	}
	dml_print("BENyamin:    dmdta_en vm                     = %d %d \n",
		src->dynamic_metadata_enable, src->vm);
	// 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);

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

	if (dual_plane) {
		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);

		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;
	if (src->num_cursors > 0) {
		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));
	}

	refcyc_per_req_delivery_pre_cur1 = 0.0;
	refcyc_per_req_delivery_cur1 = 0.0;
	if (src->num_cursors > 1) {
		calculate_ttu_cursor(mode_lib,
			&refcyc_per_req_delivery_pre_cur1,
			&refcyc_per_req_delivery_cur1,
			refclk_freq_in_mhz,
			ref_freq_to_pix_freq,
			hscale_pixel_rate_l,
			scl->hscl_ratio,
			vratio_pre_l,
			vratio_l,
			src->cur1_src_width,
			(enum cursor_bpp)(src->cur1_bpp));
	}

	// 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);
	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(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz;
	disp_dlg_regs->refcyc_per_vm_group_flip	 = get_refcyc_per_vm_group_flip(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz;
	disp_dlg_regs->refcyc_per_vm_req_vblank	 = get_refcyc_per_vm_req_vblank(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz * dml_pow(2, 10);
	disp_dlg_regs->refcyc_per_vm_req_flip	   = get_refcyc_per_vm_req_flip(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz * dml_pow(2, 10);

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

	dml_print("DML: Trow: %fus\n", line_time_in_us * (double)dpte_row_height_l / (double)vratio_l);

	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 dml30_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);
	dlg_sys_param.t_srx_delay_us = mode_lib->ip.dcfclk_cstate_latency
		/ dlg_sys_param.deepsleep_dcfclk_mhz; // TODO: Deprecated

	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);
}

#endif