Quelle  dcn_calc_auto.c   Sprache: C

/*
 * 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 "dm_services.h"
#include "dcn_calc_auto.h"
#include "dcn_calc_math.h"

/*
 * NOTE:
 *   This file is gcc-parseable HW gospel, coming straight from HW engineers.
 *
 * It doesn't adhere to Linux kernel style and sometimes will do things in odd
 * ways. Unless there is something clearly wrong with it the code should
 * remain as-is as it provides us with a guarantee from HW that it is correct.
 */

/*REVISION#250*/
void scaler_settings_calculation(struct dcn_bw_internal_vars *v)
{
 int k;
 for (k = 0; k <= v->number_of_active_planes - 1; k++) {
  if (v->allow_different_hratio_vratio == dcn_bw_yes) {
   if (v->source_scan[k] == dcn_bw_hor) {
    v->h_ratio[k] = v->viewport_width[k] / v->scaler_rec_out_width[k];
    v->v_ratio[k] = v->viewport_height[k] / v->scaler_recout_height[k];
   }
   else {
    v->h_ratio[k] = v->viewport_height[k] / v->scaler_rec_out_width[k];
    v->v_ratio[k] = v->viewport_width[k] / v->scaler_recout_height[k];
   }
  }
  else {
   if (v->source_scan[k] == dcn_bw_hor) {
    v->h_ratio[k] =dcn_bw_max2(v->viewport_width[k] / v->scaler_rec_out_width[k], v->viewport_height[k] / v->scaler_recout_height[k]);
   }
   else {
    v->h_ratio[k] =dcn_bw_max2(v->viewport_height[k] / v->scaler_rec_out_width[k], v->viewport_width[k] / v->scaler_recout_height[k]);
   }
   v->v_ratio[k] = v->h_ratio[k];
  }
  if (v->interlace_output[k] == 1.0) {
   v->v_ratio[k] = 2.0 * v->v_ratio[k];
  }
  if (v->underscan_output[k] == 1.0) {
   v->h_ratio[k] = v->h_ratio[k] * v->under_scan_factor;
   v->v_ratio[k] = v->v_ratio[k] * v->under_scan_factor;
  }
 }
 /*scaler taps calculation*/

 for (k = 0; k <= v->number_of_active_planes - 1; k++) {
  if (v->h_ratio[k] > 1.0) {
   v->acceptable_quality_hta_ps =dcn_bw_min2(v->max_hscl_taps, 2.0 *dcn_bw_ceil2(v->h_ratio[k], 1.0));
  }
  else if (v->h_ratio[k] < 1.0) {
   v->acceptable_quality_hta_ps = 4.0;
  }
  else {
   v->acceptable_quality_hta_ps = 1.0;
  }
  if (v->ta_pscalculation == dcn_bw_override) {
   v->htaps[k] = v->override_hta_ps[k];
  }
  else {
   v->htaps[k] = v->acceptable_quality_hta_ps;
  }
  if (v->v_ratio[k] > 1.0) {
   v->acceptable_quality_vta_ps =dcn_bw_min2(v->max_vscl_taps, 2.0 *dcn_bw_ceil2(v->v_ratio[k], 1.0));
  }
  else if (v->v_ratio[k] < 1.0) {
   v->acceptable_quality_vta_ps = 4.0;
  }
  else {
   v->acceptable_quality_vta_ps = 1.0;
  }
  if (v->ta_pscalculation == dcn_bw_override) {
   v->vtaps[k] = v->override_vta_ps[k];
  }
  else {
   v->vtaps[k] = v->acceptable_quality_vta_ps;
  }
  if (v->source_pixel_format[k] == dcn_bw_rgb_sub_64 || v->source_pixel_format[k] == dcn_bw_rgb_sub_32 || v->source_pixel_format[k] == dcn_bw_rgb_sub_16) {
   v->vta_pschroma[k] = 0.0;
   v->hta_pschroma[k] = 0.0;
  }
  else {
   if (v->ta_pscalculation == dcn_bw_override) {
    v->vta_pschroma[k] = v->override_vta_pschroma[k];
    v->hta_pschroma[k] = v->override_hta_pschroma[k];
   }
   else {
    v->vta_pschroma[k] = v->acceptable_quality_vta_ps;
    v->hta_pschroma[k] = v->acceptable_quality_hta_ps;
   }
  }
 }
}

void mode_support_and_system_configuration(struct dcn_bw_internal_vars *v)
{
 int i;
 int j;
 int k;
 /*mode support, voltage state and soc configuration*/

 /*scale ratio support check*/

 v->scale_ratio_support = dcn_bw_yes;
 for (k = 0; k <= v->number_of_active_planes - 1; k++) {
  if (v->h_ratio[k] > v->max_hscl_ratio || v->v_ratio[k] > v->max_vscl_ratio || v->h_ratio[k] > v->htaps[k] || v->v_ratio[k] > v->vtaps[k] || (v->source_pixel_format[k] != dcn_bw_rgb_sub_64 && v->source_pixel_format[k] != dcn_bw_rgb_sub_32 && v->source_pixel_format[k] != dcn_bw_rgb_sub_16 && (v->h_ratio[k] / 2.0 > v->hta_pschroma[k] || v->v_ratio[k] / 2.0 > v->vta_pschroma[k]))) {
   v->scale_ratio_support = dcn_bw_no;
  }
 }
 /*source format, pixel format and scan support check*/

 v->source_format_pixel_and_scan_support = dcn_bw_yes;
 for (k = 0; k <= v->number_of_active_planes - 1; k++) {
  if ((v->source_surface_mode[k] == dcn_bw_sw_linear && v->source_scan[k] != dcn_bw_hor) || ((v->source_surface_mode[k] == dcn_bw_sw_4_kb_d || v->source_surface_mode[k] == dcn_bw_sw_4_kb_d_x || v->source_surface_mode[k] == dcn_bw_sw_64_kb_d || v->source_surface_mode[k] == dcn_bw_sw_64_kb_d_t || v->source_surface_mode[k] == dcn_bw_sw_64_kb_d_x || v->source_surface_mode[k] == dcn_bw_sw_var_d || v->source_surface_mode[k] == dcn_bw_sw_var_d_x) && v->source_pixel_format[k] != dcn_bw_rgb_sub_64)) {
   v->source_format_pixel_and_scan_support = dcn_bw_no;
  }
 }
 /*bandwidth support check*/

 for (k = 0; k <= v->number_of_active_planes - 1; k++) {
  if (v->source_scan[k] == dcn_bw_hor) {
   v->swath_width_ysingle_dpp[k] = v->viewport_width[k];
  }
  else {
   v->swath_width_ysingle_dpp[k] = v->viewport_height[k];
  }
  if (v->source_pixel_format[k] == dcn_bw_rgb_sub_64) {
   v->byte_per_pixel_in_dety[k] = 8.0;
   v->byte_per_pixel_in_detc[k] = 0.0;
  }
  else if (v->source_pixel_format[k] == dcn_bw_rgb_sub_32) {
   v->byte_per_pixel_in_dety[k] = 4.0;
   v->byte_per_pixel_in_detc[k] = 0.0;
  }
  else if (v->source_pixel_format[k] == dcn_bw_rgb_sub_16) {
   v->byte_per_pixel_in_dety[k] = 2.0;
   v->byte_per_pixel_in_detc[k] = 0.0;
  }
  else if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_8) {
   v->byte_per_pixel_in_dety[k] = 1.0;
   v->byte_per_pixel_in_detc[k] = 2.0;
  }
  else {
   v->byte_per_pixel_in_dety[k] = 4.0f / 3.0f;
   v->byte_per_pixel_in_detc[k] = 8.0f / 3.0f;
  }
 }
 v->total_read_bandwidth_consumed_gbyte_per_second = 0.0;
 for (k = 0; k <= v->number_of_active_planes - 1; k++) {
  v->read_bandwidth[k] = v->swath_width_ysingle_dpp[k] * (dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) * v->v_ratio[k] +dcn_bw_ceil2(v->byte_per_pixel_in_detc[k], 2.0) / 2.0 * v->v_ratio[k] / 2) / (v->htotal[k] / v->pixel_clock[k]);
  if (v->dcc_enable[k] == dcn_bw_yes) {
   v->read_bandwidth[k] = v->read_bandwidth[k] * (1 + 1 / 256);
  }
  if (v->pte_enable == dcn_bw_yes && v->source_scan[k] != dcn_bw_hor && (v->source_surface_mode[k] == dcn_bw_sw_4_kb_s || v->source_surface_mode[k] == dcn_bw_sw_4_kb_s_x || v->source_surface_mode[k] == dcn_bw_sw_4_kb_d || v->source_surface_mode[k] == dcn_bw_sw_4_kb_d_x)) {
   v->read_bandwidth[k] = v->read_bandwidth[k] * (1 + 1 / 64);
  }
  else if (v->pte_enable == dcn_bw_yes && v->source_scan[k] == dcn_bw_hor && (v->source_pixel_format[k] == dcn_bw_rgb_sub_64 || v->source_pixel_format[k] == dcn_bw_rgb_sub_32) && (v->source_surface_mode[k] == dcn_bw_sw_64_kb_s || v->source_surface_mode[k] == dcn_bw_sw_64_kb_s_t || v->source_surface_mode[k] == dcn_bw_sw_64_kb_s_x || v->source_surface_mode[k] == dcn_bw_sw_64_kb_d || v->source_surface_mode[k] == dcn_bw_sw_64_kb_d_t || v->source_surface_mode[k] == dcn_bw_sw_64_kb_d_x)) {
   v->read_bandwidth[k] = v->read_bandwidth[k] * (1 + 1 / 256);
  }
  else if (v->pte_enable == dcn_bw_yes) {
   v->read_bandwidth[k] = v->read_bandwidth[k] * (1 + 1 / 512);
  }
  v->total_read_bandwidth_consumed_gbyte_per_second = v->total_read_bandwidth_consumed_gbyte_per_second + v->read_bandwidth[k] / 1000.0;
 }
 v->total_write_bandwidth_consumed_gbyte_per_second = 0.0;
 for (k = 0; k <= v->number_of_active_planes - 1; k++) {
  if (v->output[k] == dcn_bw_writeback && v->output_format[k] == dcn_bw_444) {
   v->write_bandwidth[k] = v->scaler_rec_out_width[k] / (v->htotal[k] / v->pixel_clock[k]) * 4.0;
  }
  else if (v->output[k] == dcn_bw_writeback) {
   v->write_bandwidth[k] = v->scaler_rec_out_width[k] / (v->htotal[k] / v->pixel_clock[k]) * 1.5;
  }
  else {
   v->write_bandwidth[k] = 0.0;
  }
  v->total_write_bandwidth_consumed_gbyte_per_second = v->total_write_bandwidth_consumed_gbyte_per_second + v->write_bandwidth[k] / 1000.0;
 }
 v->total_bandwidth_consumed_gbyte_per_second = v->total_read_bandwidth_consumed_gbyte_per_second + v->total_write_bandwidth_consumed_gbyte_per_second;
 v->dcc_enabled_in_any_plane = dcn_bw_no;
 for (k = 0; k <= v->number_of_active_planes - 1; k++) {
  if (v->dcc_enable[k] == dcn_bw_yes) {
   v->dcc_enabled_in_any_plane = dcn_bw_yes;
  }
 }
 for (i = 0; i <= number_of_states_plus_one; i++) {
  v->return_bw_todcn_per_state =dcn_bw_min2(v->return_bus_width * v->dcfclk_per_state[i], v->fabric_and_dram_bandwidth_per_state[i] * 1000.0 * v->percent_of_ideal_drambw_received_after_urg_latency / 100.0);
  v->return_bw_per_state[i] = v->return_bw_todcn_per_state;
  if (v->dcc_enabled_in_any_plane == dcn_bw_yes && v->return_bw_todcn_per_state > v->dcfclk_per_state[i] * v->return_bus_width / 4.0) {
   v->return_bw_per_state[i] =dcn_bw_min2(v->return_bw_per_state[i], v->return_bw_todcn_per_state * 4.0 * (1.0 - v->urgent_latency / ((v->rob_buffer_size_in_kbyte - v->pixel_chunk_size_in_kbyte) * 1024.0 / (v->return_bw_todcn_per_state - v->dcfclk_per_state[i] * v->return_bus_width / 4.0) + v->urgent_latency)));
  }
  v->critical_point = 2.0 * v->return_bus_width * v->dcfclk_per_state[i] * v->urgent_latency / (v->return_bw_todcn_per_state * v->urgent_latency + (v->rob_buffer_size_in_kbyte - v->pixel_chunk_size_in_kbyte) * 1024.0);
  if (v->dcc_enabled_in_any_plane == dcn_bw_yes && v->critical_point > 1.0 && v->critical_point < 4.0) {
   v->return_bw_per_state[i] =dcn_bw_min2(v->return_bw_per_state[i], dcn_bw_pow(4.0 * v->return_bw_todcn_per_state * (v->rob_buffer_size_in_kbyte - v->pixel_chunk_size_in_kbyte) * 1024.0 * v->return_bus_width * v->dcfclk_per_state[i] * v->urgent_latency / (v->return_bw_todcn_per_state * v->urgent_latency + (v->rob_buffer_size_in_kbyte - v->pixel_chunk_size_in_kbyte) * 1024.0), 2));
  }
  v->return_bw_todcn_per_state =dcn_bw_min2(v->return_bus_width * v->dcfclk_per_state[i], v->fabric_and_dram_bandwidth_per_state[i] * 1000.0);
  if (v->dcc_enabled_in_any_plane == dcn_bw_yes && v->return_bw_todcn_per_state > v->dcfclk_per_state[i] * v->return_bus_width / 4.0) {
   v->return_bw_per_state[i] =dcn_bw_min2(v->return_bw_per_state[i], v->return_bw_todcn_per_state * 4.0 * (1.0 - v->urgent_latency / ((v->rob_buffer_size_in_kbyte - v->pixel_chunk_size_in_kbyte) * 1024.0 / (v->return_bw_todcn_per_state - v->dcfclk_per_state[i] * v->return_bus_width / 4.0) + v->urgent_latency)));
  }
  v->critical_point = 2.0 * v->return_bus_width * v->dcfclk_per_state[i] * v->urgent_latency / (v->return_bw_todcn_per_state * v->urgent_latency + (v->rob_buffer_size_in_kbyte - v->pixel_chunk_size_in_kbyte) * 1024.0);
  if (v->dcc_enabled_in_any_plane == dcn_bw_yes && v->critical_point > 1.0 && v->critical_point < 4.0) {
   v->return_bw_per_state[i] =dcn_bw_min2(v->return_bw_per_state[i], dcn_bw_pow(4.0 * v->return_bw_todcn_per_state * (v->rob_buffer_size_in_kbyte - v->pixel_chunk_size_in_kbyte) * 1024.0 * v->return_bus_width * v->dcfclk_per_state[i] * v->urgent_latency / (v->return_bw_todcn_per_state * v->urgent_latency + (v->rob_buffer_size_in_kbyte - v->pixel_chunk_size_in_kbyte) * 1024.0), 2));
  }
 }
 for (i = 0; i <= number_of_states_plus_one; i++) {
  if ((v->total_read_bandwidth_consumed_gbyte_per_second * 1000.0 <= v->return_bw_per_state[i]) && (v->total_bandwidth_consumed_gbyte_per_second * 1000.0 <= v->fabric_and_dram_bandwidth_per_state[i] * 1000.0 * v->percent_of_ideal_drambw_received_after_urg_latency / 100.0)) {
   v->bandwidth_support[i] = dcn_bw_yes;
  }
  else {
   v->bandwidth_support[i] = dcn_bw_no;
  }
 }
 /*writeback latency support check*/

 v->writeback_latency_support = dcn_bw_yes;
 for (k = 0; k <= v->number_of_active_planes - 1; k++) {
  if (v->output[k] == dcn_bw_writeback && v->output_format[k] == dcn_bw_444 && v->scaler_rec_out_width[k] / (v->htotal[k] / v->pixel_clock[k]) * 4.0 > (v->writeback_luma_buffer_size + v->writeback_chroma_buffer_size) * 1024.0 / v->write_back_latency) {
   v->writeback_latency_support = dcn_bw_no;
  }
  else if (v->output[k] == dcn_bw_writeback && v->scaler_rec_out_width[k] / (v->htotal[k] / v->pixel_clock[k]) >dcn_bw_min2(v->writeback_luma_buffer_size, 2.0 * v->writeback_chroma_buffer_size) * 1024.0 / v->write_back_latency) {
   v->writeback_latency_support = dcn_bw_no;
  }
 }
 /*re-ordering buffer support check*/

 for (i = 0; i <= number_of_states_plus_one; i++) {
  v->urgent_round_trip_and_out_of_order_latency_per_state[i] = (v->round_trip_ping_latency_cycles + 32.0) / v->dcfclk_per_state[i] + v->urgent_out_of_order_return_per_channel * v->number_of_channels / v->return_bw_per_state[i];
  if ((v->rob_buffer_size_in_kbyte - v->pixel_chunk_size_in_kbyte) * 1024.0 / v->return_bw_per_state[i] > v->urgent_round_trip_and_out_of_order_latency_per_state[i]) {
   v->rob_support[i] = dcn_bw_yes;
  }
  else {
   v->rob_support[i] = dcn_bw_no;
  }
 }
 /*display io support check*/

 for (k = 0; k <= v->number_of_active_planes - 1; k++) {
  if (v->output[k] == dcn_bw_dp && v->dsc_capability == dcn_bw_yes) {
   if (v->output_format[k] == dcn_bw_420) {
    v->required_output_bw = v->pixel_clock[k] / 2.0;
   }
   else {
    v->required_output_bw = v->pixel_clock[k];
   }
  }
  else if (v->output_format[k] == dcn_bw_420) {
   v->required_output_bw = v->pixel_clock[k] * 3.0 / 2.0;
  }
  else {
   v->required_output_bw = v->pixel_clock[k] * 3.0;
  }
  if (v->output[k] == dcn_bw_hdmi) {
   v->required_phyclk[k] = v->required_output_bw;
   switch (v->output_deep_color[k]) {
   case dcn_bw_encoder_10bpc:
    v->required_phyclk[k] =  v->required_phyclk[k] * 5.0 / 4;
   break;
   case dcn_bw_encoder_12bpc:
    v->required_phyclk[k] =  v->required_phyclk[k] * 3.0 / 2;
    break;
   default:
    break;
   }
   v->required_phyclk[k] = v->required_phyclk[k] / 3.0;
  }
  else if (v->output[k] == dcn_bw_dp) {
   v->required_phyclk[k] = v->required_output_bw / 4.0;
  }
  else {
   v->required_phyclk[k] = 0.0;
  }
 }
 for (i = 0; i <= number_of_states_plus_one; i++) {
  v->dio_support[i] = dcn_bw_yes;
  for (k = 0; k <= v->number_of_active_planes - 1; k++) {
   if (v->required_phyclk[k] > v->phyclk_per_state[i] || (v->output[k] == dcn_bw_hdmi && v->required_phyclk[k] > 600.0)) {
    v->dio_support[i] = dcn_bw_no;
   }
  }
 }
 /*total available writeback support check*/

 v->total_number_of_active_writeback = 0.0;
 for (k = 0; k <= v->number_of_active_planes - 1; k++) {
  if (v->output[k] == dcn_bw_writeback) {
   v->total_number_of_active_writeback = v->total_number_of_active_writeback + 1.0;
  }
 }
 if (v->total_number_of_active_writeback <= v->max_num_writeback) {
  v->total_available_writeback_support = dcn_bw_yes;
 }
 else {
  v->total_available_writeback_support = dcn_bw_no;
 }
 /*maximum dispclk/dppclk support check*/

 for (k = 0; k <= v->number_of_active_planes - 1; k++) {
  if (v->h_ratio[k] > 1.0) {
   v->pscl_factor[k] =dcn_bw_min2(v->max_dchub_topscl_throughput, v->max_pscl_tolb_throughput * v->h_ratio[k] /dcn_bw_ceil2(v->htaps[k] / 6.0, 1.0));
  }
  else {
   v->pscl_factor[k] =dcn_bw_min2(v->max_dchub_topscl_throughput, v->max_pscl_tolb_throughput);
  }
  if (v->byte_per_pixel_in_detc[k] == 0.0) {
   v->pscl_factor_chroma[k] = 0.0;
   v->min_dppclk_using_single_dpp[k] = v->pixel_clock[k] *dcn_bw_max3(v->vtaps[k] / 6.0 *dcn_bw_min2(1.0, v->h_ratio[k]), v->h_ratio[k] * v->v_ratio[k] / v->pscl_factor[k], 1.0);
  }
  else {
   if (v->h_ratio[k] / 2.0 > 1.0) {
    v->pscl_factor_chroma[k] =dcn_bw_min2(v->max_dchub_topscl_throughput, v->max_pscl_tolb_throughput * v->h_ratio[k] / 2.0 /dcn_bw_ceil2(v->hta_pschroma[k] / 6.0, 1.0));
   }
   else {
    v->pscl_factor_chroma[k] =dcn_bw_min2(v->max_dchub_topscl_throughput, v->max_pscl_tolb_throughput);
   }
   v->min_dppclk_using_single_dpp[k] = v->pixel_clock[k] *dcn_bw_max5(v->vtaps[k] / 6.0 *dcn_bw_min2(1.0, v->h_ratio[k]), v->h_ratio[k] * v->v_ratio[k] / v->pscl_factor[k], v->vta_pschroma[k] / 6.0 *dcn_bw_min2(1.0, v->h_ratio[k] / 2.0), v->h_ratio[k] * v->v_ratio[k] / 4.0 / v->pscl_factor_chroma[k], 1.0);
  }
 }
 for (k = 0; k <= v->number_of_active_planes - 1; k++) {
  if ((v->source_pixel_format[k] == dcn_bw_rgb_sub_64 || v->source_pixel_format[k] == dcn_bw_rgb_sub_32 || v->source_pixel_format[k] == dcn_bw_rgb_sub_16)) {
   if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
    v->read256_block_height_y[k] = 1.0;
   }
   else if (v->source_pixel_format[k] == dcn_bw_rgb_sub_64) {
    v->read256_block_height_y[k] = 4.0;
   }
   else {
    v->read256_block_height_y[k] = 8.0;
   }
   v->read256_block_width_y[k] = 256.0 /dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) / v->read256_block_height_y[k];
   v->read256_block_height_c[k] = 0.0;
   v->read256_block_width_c[k] = 0.0;
  }
  else {
   if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
    v->read256_block_height_y[k] = 1.0;
    v->read256_block_height_c[k] = 1.0;
   }
   else if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_8) {
    v->read256_block_height_y[k] = 16.0;
    v->read256_block_height_c[k] = 8.0;
   }
   else {
    v->read256_block_height_y[k] = 8.0;
    v->read256_block_height_c[k] = 8.0;
   }
   v->read256_block_width_y[k] = 256.0 /dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) / v->read256_block_height_y[k];
   v->read256_block_width_c[k] = 256.0 /dcn_bw_ceil2(v->byte_per_pixel_in_detc[k], 2.0) / v->read256_block_height_c[k];
  }
  if (v->source_scan[k] == dcn_bw_hor) {
   v->max_swath_height_y[k] = v->read256_block_height_y[k];
   v->max_swath_height_c[k] = v->read256_block_height_c[k];
  }
  else {
   v->max_swath_height_y[k] = v->read256_block_width_y[k];
   v->max_swath_height_c[k] = v->read256_block_width_c[k];
  }
  if ((v->source_pixel_format[k] == dcn_bw_rgb_sub_64 || v->source_pixel_format[k] == dcn_bw_rgb_sub_32 || v->source_pixel_format[k] == dcn_bw_rgb_sub_16)) {
   if (v->source_surface_mode[k] == dcn_bw_sw_linear || (v->source_pixel_format[k] == dcn_bw_rgb_sub_64 && (v->source_surface_mode[k] == dcn_bw_sw_4_kb_s || v->source_surface_mode[k] == dcn_bw_sw_4_kb_s_x || v->source_surface_mode[k] == dcn_bw_sw_64_kb_s || v->source_surface_mode[k] == dcn_bw_sw_64_kb_s_t || v->source_surface_mode[k] == dcn_bw_sw_64_kb_s_x || v->source_surface_mode[k] == dcn_bw_sw_var_s || v->source_surface_mode[k] == dcn_bw_sw_var_s_x) && v->source_scan[k] == dcn_bw_hor)) {
    v->min_swath_height_y[k] = v->max_swath_height_y[k];
   }
   else {
    v->min_swath_height_y[k] = v->max_swath_height_y[k] / 2.0;
   }
   v->min_swath_height_c[k] = v->max_swath_height_c[k];
  }
  else {
   if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
    v->min_swath_height_y[k] = v->max_swath_height_y[k];
    v->min_swath_height_c[k] = v->max_swath_height_c[k];
   }
   else if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_8 && v->source_scan[k] == dcn_bw_hor) {
    v->min_swath_height_y[k] = v->max_swath_height_y[k] / 2.0;
    if (v->bug_forcing_luma_and_chroma_request_to_same_size_fixed == dcn_bw_yes) {
     v->min_swath_height_c[k] = v->max_swath_height_c[k];
    }
    else {
     v->min_swath_height_c[k] = v->max_swath_height_c[k] / 2.0;
    }
   }
   else if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_10 && v->source_scan[k] == dcn_bw_hor) {
    v->min_swath_height_c[k] = v->max_swath_height_c[k] / 2.0;
    if (v->bug_forcing_luma_and_chroma_request_to_same_size_fixed == dcn_bw_yes) {
     v->min_swath_height_y[k] = v->max_swath_height_y[k];
    }
    else {
     v->min_swath_height_y[k] = v->max_swath_height_y[k] / 2.0;
    }
   }
   else {
    v->min_swath_height_y[k] = v->max_swath_height_y[k];
    v->min_swath_height_c[k] = v->max_swath_height_c[k];
   }
  }
  if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
   v->maximum_swath_width = 8192.0;
  }
  else {
   v->maximum_swath_width = 5120.0;
  }
  v->number_of_dpp_required_for_det_size =dcn_bw_ceil2(v->swath_width_ysingle_dpp[k] /dcn_bw_min2(v->maximum_swath_width, v->det_buffer_size_in_kbyte * 1024.0 / 2.0 / (v->byte_per_pixel_in_dety[k] * v->min_swath_height_y[k] + v->byte_per_pixel_in_detc[k] / 2.0 * v->min_swath_height_c[k])), 1.0);
  if (v->byte_per_pixel_in_detc[k] == 0.0) {
   v->number_of_dpp_required_for_lb_size =dcn_bw_ceil2((v->vtaps[k] +dcn_bw_max2(dcn_bw_ceil2(v->v_ratio[k], 1.0) - 2, 0.0)) * v->swath_width_ysingle_dpp[k] /dcn_bw_max2(v->h_ratio[k], 1.0) * v->lb_bit_per_pixel[k] / v->line_buffer_size, 1.0);
  }
  else {
   v->number_of_dpp_required_for_lb_size =dcn_bw_max2(dcn_bw_ceil2((v->vtaps[k] +dcn_bw_max2(dcn_bw_ceil2(v->v_ratio[k], 1.0) - 2, 0.0)) * v->swath_width_ysingle_dpp[k] /dcn_bw_max2(v->h_ratio[k], 1.0) * v->lb_bit_per_pixel[k] / v->line_buffer_size, 1.0),dcn_bw_ceil2((v->vta_pschroma[k] +dcn_bw_max2(dcn_bw_ceil2(v->v_ratio[k] / 2.0, 1.0) - 2, 0.0)) * v->swath_width_ysingle_dpp[k] / 2.0 /dcn_bw_max2(v->h_ratio[k] / 2.0, 1.0) * v->lb_bit_per_pixel[k] / v->line_buffer_size, 1.0));
  }
  v->number_of_dpp_required_for_det_and_lb_size[k] =dcn_bw_max2(v->number_of_dpp_required_for_det_size, v->number_of_dpp_required_for_lb_size);
 }
 for (i = 0; i <= number_of_states_plus_one; i++) {
  for (j = 0; j <= 1; j++) {
   v->total_number_of_active_dpp[i][j] = 0.0;
   v->required_dispclk[i][j] = 0.0;
   v->dispclk_dppclk_support[i][j] = dcn_bw_yes;
   for (k = 0; k <= v->number_of_active_planes - 1; k++) {
    v->min_dispclk_using_single_dpp =dcn_bw_max2(v->pixel_clock[k], v->min_dppclk_using_single_dpp[k] * (j + 1)) * (1.0 + v->downspreading / 100.0);
    if (v->odm_capability == dcn_bw_yes) {
     v->min_dispclk_using_dual_dpp =dcn_bw_max2(v->pixel_clock[k] / 2.0, v->min_dppclk_using_single_dpp[k] / 2.0 * (j + 1)) * (1.0 + v->downspreading / 100.0);
    }
    else {
     v->min_dispclk_using_dual_dpp =dcn_bw_max2(v->pixel_clock[k], v->min_dppclk_using_single_dpp[k] / 2.0 * (j + 1)) * (1.0 + v->downspreading / 100.0);
    }
    if (i < number_of_states) {
     v->min_dispclk_using_single_dpp = v->min_dispclk_using_single_dpp * (1.0 + v->dispclk_ramping_margin / 100.0);
     v->min_dispclk_using_dual_dpp = v->min_dispclk_using_dual_dpp * (1.0 + v->dispclk_ramping_margin / 100.0);
    }
    if (v->min_dispclk_using_single_dpp <=dcn_bw_min2(v->max_dispclk[i], (j + 1) * v->max_dppclk[i]) && v->number_of_dpp_required_for_det_and_lb_size[k] <= 1.0) {
     v->no_of_dpp[i][j][k] = 1.0;
     v->required_dispclk[i][j] =dcn_bw_max2(v->required_dispclk[i][j], v->min_dispclk_using_single_dpp);
    }
    else if (v->min_dispclk_using_dual_dpp <=dcn_bw_min2(v->max_dispclk[i], (j + 1) * v->max_dppclk[i])) {
     v->no_of_dpp[i][j][k] = 2.0;
     v->required_dispclk[i][j] =dcn_bw_max2(v->required_dispclk[i][j], v->min_dispclk_using_dual_dpp);
    }
    else {
     v->no_of_dpp[i][j][k] = 2.0;
     v->required_dispclk[i][j] =dcn_bw_max2(v->required_dispclk[i][j], v->min_dispclk_using_dual_dpp);
     v->dispclk_dppclk_support[i][j] = dcn_bw_no;
    }
    v->total_number_of_active_dpp[i][j] = v->total_number_of_active_dpp[i][j] + v->no_of_dpp[i][j][k];
   }
   if (v->total_number_of_active_dpp[i][j] > v->max_num_dpp) {
    v->total_number_of_active_dpp[i][j] = 0.0;
    v->required_dispclk[i][j] = 0.0;
    v->dispclk_dppclk_support[i][j] = dcn_bw_yes;
    for (k = 0; k <= v->number_of_active_planes - 1; k++) {
     v->min_dispclk_using_single_dpp =dcn_bw_max2(v->pixel_clock[k], v->min_dppclk_using_single_dpp[k] * (j + 1)) * (1.0 + v->downspreading / 100.0);
     v->min_dispclk_using_dual_dpp =dcn_bw_max2(v->pixel_clock[k], v->min_dppclk_using_single_dpp[k] / 2.0 * (j + 1)) * (1.0 + v->downspreading / 100.0);
     if (i < number_of_states) {
      v->min_dispclk_using_single_dpp = v->min_dispclk_using_single_dpp * (1.0 + v->dispclk_ramping_margin / 100.0);
      v->min_dispclk_using_dual_dpp = v->min_dispclk_using_dual_dpp * (1.0 + v->dispclk_ramping_margin / 100.0);
     }
     if (v->number_of_dpp_required_for_det_and_lb_size[k] <= 1.0) {
      v->no_of_dpp[i][j][k] = 1.0;
      v->required_dispclk[i][j] =dcn_bw_max2(v->required_dispclk[i][j], v->min_dispclk_using_single_dpp);
      if (v->min_dispclk_using_single_dpp >dcn_bw_min2(v->max_dispclk[i], (j + 1) * v->max_dppclk[i])) {
       v->dispclk_dppclk_support[i][j] = dcn_bw_no;
      }
     }
     else {
      v->no_of_dpp[i][j][k] = 2.0;
      v->required_dispclk[i][j] =dcn_bw_max2(v->required_dispclk[i][j], v->min_dispclk_using_dual_dpp);
      if (v->min_dispclk_using_dual_dpp >dcn_bw_min2(v->max_dispclk[i], (j + 1) * v->max_dppclk[i])) {
       v->dispclk_dppclk_support[i][j] = dcn_bw_no;
      }
     }
     v->total_number_of_active_dpp[i][j] = v->total_number_of_active_dpp[i][j] + v->no_of_dpp[i][j][k];
    }
   }
  }
 }
 /*viewport size check*/

 v->viewport_size_support = dcn_bw_yes;
 for (k = 0; k <= v->number_of_active_planes - 1; k++) {
  if (v->number_of_dpp_required_for_det_and_lb_size[k] > 2.0) {
   v->viewport_size_support = dcn_bw_no;
  }
 }
 /*total available pipes support check*/

 for (i = 0; i <= number_of_states_plus_one; i++) {
  for (j = 0; j <= 1; j++) {
   if (v->total_number_of_active_dpp[i][j] <= v->max_num_dpp) {
    v->total_available_pipes_support[i][j] = dcn_bw_yes;
   }
   else {
    v->total_available_pipes_support[i][j] = dcn_bw_no;
   }
  }
 }
 /*urgent latency support check*/

 for (k = 0; k <= v->number_of_active_planes - 1; k++) {
  for (i = 0; i <= number_of_states_plus_one; i++) {
   for (j = 0; j <= 1; j++) {
    v->swath_width_yper_state[i][j][k] = v->swath_width_ysingle_dpp[k] / v->no_of_dpp[i][j][k];
    v->swath_width_granularity_y = 256.0 /dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) / v->max_swath_height_y[k];
    v->rounded_up_max_swath_size_bytes_y = (dcn_bw_ceil2(v->swath_width_yper_state[i][j][k] - 1.0, v->swath_width_granularity_y) + v->swath_width_granularity_y) * v->byte_per_pixel_in_dety[k] * v->max_swath_height_y[k];
    if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_10) {
     v->rounded_up_max_swath_size_bytes_y =dcn_bw_ceil2(v->rounded_up_max_swath_size_bytes_y, 256.0) + 256;
    }
    if (v->max_swath_height_c[k] > 0.0) {
     v->swath_width_granularity_c = 256.0 /dcn_bw_ceil2(v->byte_per_pixel_in_detc[k], 2.0) / v->max_swath_height_c[k];
     v->rounded_up_max_swath_size_bytes_c = (dcn_bw_ceil2(v->swath_width_yper_state[i][j][k] / 2.0 - 1.0, v->swath_width_granularity_c) + v->swath_width_granularity_c) * v->byte_per_pixel_in_detc[k] * v->max_swath_height_c[k];
     if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_10) {
      v->rounded_up_max_swath_size_bytes_c = dcn_bw_ceil2(v->rounded_up_max_swath_size_bytes_c, 256.0) + 256;
     }
    }
    if (v->rounded_up_max_swath_size_bytes_y + v->rounded_up_max_swath_size_bytes_c <= v->det_buffer_size_in_kbyte * 1024.0 / 2.0) {
     v->swath_height_yper_state[i][j][k] = v->max_swath_height_y[k];
     v->swath_height_cper_state[i][j][k] = v->max_swath_height_c[k];
    }
    else {
     v->swath_height_yper_state[i][j][k] = v->min_swath_height_y[k];
     v->swath_height_cper_state[i][j][k] = v->min_swath_height_c[k];
    }
    if (v->byte_per_pixel_in_detc[k] == 0.0) {
     v->lines_in_det_luma = v->det_buffer_size_in_kbyte * 1024.0 / v->byte_per_pixel_in_dety[k] / v->swath_width_yper_state[i][j][k];
     v->lines_in_det_chroma = 0.0;
    }
    else if (v->swath_height_yper_state[i][j][k] <= v->swath_height_cper_state[i][j][k]) {
     v->lines_in_det_luma = v->det_buffer_size_in_kbyte * 1024.0 / 2.0 / v->byte_per_pixel_in_dety[k] / v->swath_width_yper_state[i][j][k];
     v->lines_in_det_chroma = v->det_buffer_size_in_kbyte * 1024.0 / 2.0 / v->byte_per_pixel_in_detc[k] / (v->swath_width_yper_state[i][j][k] / 2.0);
    }
    else {
     v->lines_in_det_luma = v->det_buffer_size_in_kbyte * 1024.0 * 2.0 / 3.0 / v->byte_per_pixel_in_dety[k] / v->swath_width_yper_state[i][j][k];
     v->lines_in_det_chroma = v->det_buffer_size_in_kbyte * 1024.0 / 3.0 / v->byte_per_pixel_in_dety[k] / (v->swath_width_yper_state[i][j][k] / 2.0);
    }
    v->effective_lb_latency_hiding_source_lines_luma =dcn_bw_min2(v->max_line_buffer_lines,dcn_bw_floor2(v->line_buffer_size / v->lb_bit_per_pixel[k] / (v->swath_width_yper_state[i][j][k] /dcn_bw_max2(v->h_ratio[k], 1.0)), 1.0)) - (v->vtaps[k] - 1.0);
    v->effective_detlb_lines_luma =dcn_bw_floor2(v->lines_in_det_luma +dcn_bw_min2(v->lines_in_det_luma * v->required_dispclk[i][j] * v->byte_per_pixel_in_dety[k] * v->pscl_factor[k] / v->return_bw_per_state[i], v->effective_lb_latency_hiding_source_lines_luma), v->swath_height_yper_state[i][j][k]);
    if (v->byte_per_pixel_in_detc[k] == 0.0) {
     v->urgent_latency_support_us_per_state[i][j][k] = v->effective_detlb_lines_luma * (v->htotal[k] / v->pixel_clock[k]) / v->v_ratio[k] - v->effective_detlb_lines_luma * v->swath_width_yper_state[i][j][k] *dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) / (v->return_bw_per_state[i] / v->no_of_dpp[i][j][k]);
    }
    else {
     v->effective_lb_latency_hiding_source_lines_chroma = dcn_bw_min2(v->max_line_buffer_lines, dcn_bw_floor2(v->line_buffer_size / v->lb_bit_per_pixel[k] / (v->swath_width_yper_state[i][j][k] / 2.0 / dcn_bw_max2(v->h_ratio[k] / 2.0, 1.0)), 1.0)) - (v->vta_pschroma[k] - 1.0);
     v->effective_detlb_lines_chroma = dcn_bw_floor2(v->lines_in_det_chroma + dcn_bw_min2(v->lines_in_det_chroma * v->required_dispclk[i][j] * v->byte_per_pixel_in_detc[k] * v->pscl_factor_chroma[k] / v->return_bw_per_state[i], v->effective_lb_latency_hiding_source_lines_chroma), v->swath_height_cper_state[i][j][k]);
     v->urgent_latency_support_us_per_state[i][j][k] = dcn_bw_min2(v->effective_detlb_lines_luma * (v->htotal[k] / v->pixel_clock[k]) / v->v_ratio[k] - v->effective_detlb_lines_luma * v->swath_width_yper_state[i][j][k] * dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) / (v->return_bw_per_state[i] / v->no_of_dpp[i][j][k]), v->effective_detlb_lines_chroma * (v->htotal[k] / v->pixel_clock[k]) / (v->v_ratio[k] / 2.0) - v->effective_detlb_lines_chroma * v->swath_width_yper_state[i][j][k] / 2.0 * dcn_bw_ceil2(v->byte_per_pixel_in_detc[k], 2.0) / (v->return_bw_per_state[i] / v->no_of_dpp[i][j][k]));
    }
   }
  }
 }
 for (i = 0; i <= number_of_states_plus_one; i++) {
  for (j = 0; j <= 1; j++) {
   v->urgent_latency_support[i][j] = dcn_bw_yes;
   for (k = 0; k <= v->number_of_active_planes - 1; k++) {
    if (v->urgent_latency_support_us_per_state[i][j][k] < v->urgent_latency / 1.0) {
     v->urgent_latency_support[i][j] = dcn_bw_no;
    }
   }
  }
 }
 /*prefetch check*/

 for (i = 0; i <= number_of_states_plus_one; i++) {
  for (j = 0; j <= 1; j++) {
   v->total_number_of_dcc_active_dpp[i][j] = 0.0;
   for (k = 0; k <= v->number_of_active_planes - 1; k++) {
    if (v->dcc_enable[k] == dcn_bw_yes) {
     v->total_number_of_dcc_active_dpp[i][j] = v->total_number_of_dcc_active_dpp[i][j] + v->no_of_dpp[i][j][k];
    }
   }
  }
 }
 for (i = 0; i <= number_of_states_plus_one; i++) {
  for (j = 0; j <= 1; j++) {
   v->projected_dcfclk_deep_sleep = 8.0;
   for (k = 0; k <= v->number_of_active_planes - 1; k++) {
    v->projected_dcfclk_deep_sleep =dcn_bw_max2(v->projected_dcfclk_deep_sleep, v->pixel_clock[k] / 16.0);
    if (v->byte_per_pixel_in_detc[k] == 0.0) {
     if (v->v_ratio[k] <= 1.0) {
      v->projected_dcfclk_deep_sleep =dcn_bw_max2(v->projected_dcfclk_deep_sleep, 1.1 *dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) / 64.0 * v->h_ratio[k] * v->pixel_clock[k] / v->no_of_dpp[i][j][k]);
     }
     else {
      v->projected_dcfclk_deep_sleep =dcn_bw_max2(v->projected_dcfclk_deep_sleep, 1.1 *dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) / 64.0 * v->pscl_factor[k] * v->required_dispclk[i][j] / (1 + j));
     }
    }
    else {
     if (v->v_ratio[k] <= 1.0) {
      v->projected_dcfclk_deep_sleep =dcn_bw_max2(v->projected_dcfclk_deep_sleep, 1.1 *dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) / 32.0 * v->h_ratio[k] * v->pixel_clock[k] / v->no_of_dpp[i][j][k]);
     }
     else {
      v->projected_dcfclk_deep_sleep =dcn_bw_max2(v->projected_dcfclk_deep_sleep, 1.1 *dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) / 32.0 * v->pscl_factor[k] * v->required_dispclk[i][j] / (1 + j));
     }
     if (v->v_ratio[k] / 2.0 <= 1.0) {
      v->projected_dcfclk_deep_sleep =dcn_bw_max2(v->projected_dcfclk_deep_sleep, 1.1 *dcn_bw_ceil2(v->byte_per_pixel_in_detc[k], 2.0) / 32.0 * v->h_ratio[k] / 2.0 * v->pixel_clock[k] / v->no_of_dpp[i][j][k]);
     }
     else {
      v->projected_dcfclk_deep_sleep =dcn_bw_max2(v->projected_dcfclk_deep_sleep, 1.1 *dcn_bw_ceil2(v->byte_per_pixel_in_detc[k], 2.0) / 32.0 * v->pscl_factor_chroma[k] * v->required_dispclk[i][j] / (1 + j));
     }
    }
   }
   for (k = 0; k <= v->number_of_active_planes - 1; k++) {
    if (v->dcc_enable[k] == dcn_bw_yes) {
     v->meta_req_height_y = 8.0 * v->read256_block_height_y[k];
     v->meta_req_width_y = 64.0 * 256.0 /dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) / v->meta_req_height_y;
     v->meta_surface_width_y =dcn_bw_ceil2(v->viewport_width[k] / v->no_of_dpp[i][j][k] - 1.0, v->meta_req_width_y) + v->meta_req_width_y;
     v->meta_surface_height_y =dcn_bw_ceil2(v->viewport_height[k] - 1.0, v->meta_req_height_y) + v->meta_req_height_y;
     if (v->pte_enable == dcn_bw_yes) {
      v->meta_pte_bytes_per_frame_y = (dcn_bw_ceil2((v->meta_surface_width_y * v->meta_surface_height_y *dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) / 256.0 - 4096.0) / 8.0 / 4096.0, 1.0) + 1) * 64.0;
     }
     else {
      v->meta_pte_bytes_per_frame_y = 0.0;
     }
     if (v->source_scan[k] == dcn_bw_hor) {
      v->meta_row_bytes_y = v->meta_surface_width_y * v->meta_req_height_y *dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) / 256.0;
     }
     else {
      v->meta_row_bytes_y = v->meta_surface_height_y * v->meta_req_width_y *dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) / 256.0;
     }
    }
    else {
     v->meta_pte_bytes_per_frame_y = 0.0;
     v->meta_row_bytes_y = 0.0;
    }
    if (v->pte_enable == dcn_bw_yes) {
     if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
      v->macro_tile_block_size_bytes_y = 256.0;
      v->macro_tile_block_height_y = 1.0;
     }
     else if (v->source_surface_mode[k] == dcn_bw_sw_4_kb_s || v->source_surface_mode[k] == dcn_bw_sw_4_kb_s_x || v->source_surface_mode[k] == dcn_bw_sw_4_kb_d || v->source_surface_mode[k] == dcn_bw_sw_4_kb_d_x) {
      v->macro_tile_block_size_bytes_y = 4096.0;
      v->macro_tile_block_height_y = 4.0 * v->read256_block_height_y[k];
     }
     else if (v->source_surface_mode[k] == dcn_bw_sw_64_kb_s || v->source_surface_mode[k] == dcn_bw_sw_64_kb_s_t || v->source_surface_mode[k] == dcn_bw_sw_64_kb_s_x || v->source_surface_mode[k] == dcn_bw_sw_64_kb_d || v->source_surface_mode[k] == dcn_bw_sw_64_kb_d_t || v->source_surface_mode[k] == dcn_bw_sw_64_kb_d_x) {
      v->macro_tile_block_size_bytes_y = 64.0 * 1024;
      v->macro_tile_block_height_y = 16.0 * v->read256_block_height_y[k];
     }
     else {
      v->macro_tile_block_size_bytes_y = 256.0 * 1024;
      v->macro_tile_block_height_y = 32.0 * v->read256_block_height_y[k];
     }
     if (v->macro_tile_block_size_bytes_y <= 65536.0) {
      v->data_pte_req_height_y = v->macro_tile_block_height_y;
     }
     else {
      v->data_pte_req_height_y = 16.0 * v->read256_block_height_y[k];
     }
     v->data_pte_req_width_y = 4096.0 /dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) / v->data_pte_req_height_y * 8;
     if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
      v->dpte_bytes_per_row_y = 64.0 * (dcn_bw_ceil2((v->viewport_width[k] / v->no_of_dpp[i][j][k] *dcn_bw_min2(128.0, dcn_bw_pow(2.0,dcn_bw_floor2(dcn_bw_log(v->pte_buffer_size_in_requests * v->data_pte_req_width_y / (v->viewport_width[k] / v->no_of_dpp[i][j][k]), 2.0), 1.0))) - 1.0) / v->data_pte_req_width_y, 1.0) + 1);
     }
     else if (v->source_scan[k] == dcn_bw_hor) {
      v->dpte_bytes_per_row_y = 64.0 * (dcn_bw_ceil2((v->viewport_width[k] / v->no_of_dpp[i][j][k] - 1.0) / v->data_pte_req_width_y, 1.0) + 1);
     }
     else {
      v->dpte_bytes_per_row_y = 64.0 * (dcn_bw_ceil2((v->viewport_height[k] - 1.0) / v->data_pte_req_height_y, 1.0) + 1);
     }
    }
    else {
     v->dpte_bytes_per_row_y = 0.0;
    }
    if ((v->source_pixel_format[k] != dcn_bw_rgb_sub_64 && v->source_pixel_format[k] != dcn_bw_rgb_sub_32 && v->source_pixel_format[k] != dcn_bw_rgb_sub_16)) {
     if (v->dcc_enable[k] == dcn_bw_yes) {
      v->meta_req_height_c = 8.0 * v->read256_block_height_c[k];
      v->meta_req_width_c = 64.0 * 256.0 /dcn_bw_ceil2(v->byte_per_pixel_in_detc[k], 2.0) / v->meta_req_height_c;
      v->meta_surface_width_c =dcn_bw_ceil2(v->viewport_width[k] / v->no_of_dpp[i][j][k] / 2.0 - 1.0, v->meta_req_width_c) + v->meta_req_width_c;
      v->meta_surface_height_c =dcn_bw_ceil2(v->viewport_height[k] / 2.0 - 1.0, v->meta_req_height_c) + v->meta_req_height_c;
      if (v->pte_enable == dcn_bw_yes) {
       v->meta_pte_bytes_per_frame_c = (dcn_bw_ceil2((v->meta_surface_width_c * v->meta_surface_height_c *dcn_bw_ceil2(v->byte_per_pixel_in_detc[k], 2.0) / 256.0 - 4096.0) / 8.0 / 4096.0, 1.0) + 1) * 64.0;
      }
      else {
       v->meta_pte_bytes_per_frame_c = 0.0;
      }
      if (v->source_scan[k] == dcn_bw_hor) {
       v->meta_row_bytes_c = v->meta_surface_width_c * v->meta_req_height_c *dcn_bw_ceil2(v->byte_per_pixel_in_detc[k], 2.0) / 256.0;
      }
      else {
       v->meta_row_bytes_c = v->meta_surface_height_c * v->meta_req_width_c *dcn_bw_ceil2(v->byte_per_pixel_in_detc[k], 2.0) / 256.0;
      }
     }
     else {
      v->meta_pte_bytes_per_frame_c = 0.0;
      v->meta_row_bytes_c = 0.0;
     }
     if (v->pte_enable == dcn_bw_yes) {
      if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
       v->macro_tile_block_size_bytes_c = 256.0;
       v->macro_tile_block_height_c = 1.0;
      }
      else if (v->source_surface_mode[k] == dcn_bw_sw_4_kb_s || v->source_surface_mode[k] == dcn_bw_sw_4_kb_s_x || v->source_surface_mode[k] == dcn_bw_sw_4_kb_d || v->source_surface_mode[k] == dcn_bw_sw_4_kb_d_x) {
       v->macro_tile_block_size_bytes_c = 4096.0;
       v->macro_tile_block_height_c = 4.0 * v->read256_block_height_c[k];
      }
      else if (v->source_surface_mode[k] == dcn_bw_sw_64_kb_s || v->source_surface_mode[k] == dcn_bw_sw_64_kb_s_t || v->source_surface_mode[k] == dcn_bw_sw_64_kb_s_x || v->source_surface_mode[k] == dcn_bw_sw_64_kb_d || v->source_surface_mode[k] == dcn_bw_sw_64_kb_d_t || v->source_surface_mode[k] == dcn_bw_sw_64_kb_d_x) {
       v->macro_tile_block_size_bytes_c = 64.0 * 1024;
       v->macro_tile_block_height_c = 16.0 * v->read256_block_height_c[k];
      }
      else {
       v->macro_tile_block_size_bytes_c = 256.0 * 1024;
       v->macro_tile_block_height_c = 32.0 * v->read256_block_height_c[k];
      }
      v->macro_tile_block_width_c = v->macro_tile_block_size_bytes_c /dcn_bw_ceil2(v->byte_per_pixel_in_detc[k], 2.0) / v->macro_tile_block_height_c;
      if (v->macro_tile_block_size_bytes_c <= 65536.0) {
       v->data_pte_req_height_c = v->macro_tile_block_height_c;
      }
      else {
       v->data_pte_req_height_c = 16.0 * v->read256_block_height_c[k];
      }
      v->data_pte_req_width_c = 4096.0 /dcn_bw_ceil2(v->byte_per_pixel_in_detc[k], 2.0) / v->data_pte_req_height_c * 8;
      if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
       v->dpte_bytes_per_row_c = 64.0 * (dcn_bw_ceil2((v->viewport_width[k] / v->no_of_dpp[i][j][k] / 2.0 * dcn_bw_min2(128.0, dcn_bw_pow(2.0,dcn_bw_floor2(dcn_bw_log(v->pte_buffer_size_in_requests * v->data_pte_req_width_c / (v->viewport_width[k] / v->no_of_dpp[i][j][k] / 2.0), 2.0), 1.0))) - 1.0) / v->data_pte_req_width_c, 1.0) + 1);
      }
      else if (v->source_scan[k] == dcn_bw_hor) {
       v->dpte_bytes_per_row_c = 64.0 * (dcn_bw_ceil2((v->viewport_width[k] / v->no_of_dpp[i][j][k] / 2.0 - 1.0) / v->data_pte_req_width_c, 1.0) + 1);
      }
      else {
       v->dpte_bytes_per_row_c = 64.0 * (dcn_bw_ceil2((v->viewport_height[k] / 2.0 - 1.0) / v->data_pte_req_height_c, 1.0) + 1);
      }
     }
     else {
      v->dpte_bytes_per_row_c = 0.0;
     }
    }
    else {
     v->dpte_bytes_per_row_c = 0.0;
     v->meta_pte_bytes_per_frame_c = 0.0;
     v->meta_row_bytes_c = 0.0;
    }
    v->dpte_bytes_per_row[k] = v->dpte_bytes_per_row_y + v->dpte_bytes_per_row_c;
    v->meta_pte_bytes_per_frame[k] = v->meta_pte_bytes_per_frame_y + v->meta_pte_bytes_per_frame_c;
    v->meta_row_bytes[k] = v->meta_row_bytes_y + v->meta_row_bytes_c;
    v->v_init_y = (v->v_ratio[k] + v->vtaps[k] + 1.0 + v->interlace_output[k] * 0.5 * v->v_ratio[k]) / 2.0;
    v->prefill_y[k] =dcn_bw_floor2(v->v_init_y, 1.0);
    v->max_num_sw_y[k] =dcn_bw_ceil2((v->prefill_y[k] - 1.0) / v->swath_height_yper_state[i][j][k], 1.0) + 1;
    if (v->prefill_y[k] > 1.0) {
     v->max_partial_sw_y =dcn_bw_mod((v->prefill_y[k] - 2.0), v->swath_height_yper_state[i][j][k]);
    }
    else {
     v->max_partial_sw_y =dcn_bw_mod((v->prefill_y[k] + v->swath_height_yper_state[i][j][k] - 2.0), v->swath_height_yper_state[i][j][k]);
    }
    v->max_partial_sw_y =dcn_bw_max2(1.0, v->max_partial_sw_y);
    v->prefetch_lines_y[k] = v->max_num_sw_y[k] * v->swath_height_yper_state[i][j][k] + v->max_partial_sw_y;
    if ((v->source_pixel_format[k] != dcn_bw_rgb_sub_64 && v->source_pixel_format[k] != dcn_bw_rgb_sub_32 && v->source_pixel_format[k] != dcn_bw_rgb_sub_16)) {
     v->v_init_c = (v->v_ratio[k] / 2.0 + v->vtaps[k] + 1.0 + v->interlace_output[k] * 0.5 * v->v_ratio[k] / 2.0) / 2.0;
     v->prefill_c[k] =dcn_bw_floor2(v->v_init_c, 1.0);
     v->max_num_sw_c[k] =dcn_bw_ceil2((v->prefill_c[k] - 1.0) / v->swath_height_cper_state[i][j][k], 1.0) + 1;
     if (v->prefill_c[k] > 1.0) {
      v->max_partial_sw_c =dcn_bw_mod((v->prefill_c[k] - 2.0), v->swath_height_cper_state[i][j][k]);
     }
     else {
      v->max_partial_sw_c =dcn_bw_mod((v->prefill_c[k] + v->swath_height_cper_state[i][j][k] - 2.0), v->swath_height_cper_state[i][j][k]);
     }
     v->max_partial_sw_c =dcn_bw_max2(1.0, v->max_partial_sw_c);
     v->prefetch_lines_c[k] = v->max_num_sw_c[k] * v->swath_height_cper_state[i][j][k] + v->max_partial_sw_c;
    }
    else {
     v->prefetch_lines_c[k] = 0.0;
    }
    v->dst_x_after_scaler = 90.0 * v->pixel_clock[k] / (v->required_dispclk[i][j] / (j + 1)) + 42.0 * v->pixel_clock[k] / v->required_dispclk[i][j];
    if (v->no_of_dpp[i][j][k] > 1.0) {
     v->dst_x_after_scaler = v->dst_x_after_scaler + v->scaler_rec_out_width[k] / 2.0;
    }
    if (v->output_format[k] == dcn_bw_420) {
     v->dst_y_after_scaler = 1.0;
    }
    else {
     v->dst_y_after_scaler = 0.0;
    }
    v->time_calc = 24.0 / v->projected_dcfclk_deep_sleep;
    v->v_update_offset[k][j] = dcn_bw_ceil2(v->htotal[k] / 4.0, 1.0);
    v->total_repeater_delay = v->max_inter_dcn_tile_repeaters * (2.0 / (v->required_dispclk[i][j] / (j + 1)) + 3.0 / v->required_dispclk[i][j]);
    v->v_update_width[k][j] = (14.0 / v->projected_dcfclk_deep_sleep + 12.0 / (v->required_dispclk[i][j] / (j + 1)) + v->total_repeater_delay) * v->pixel_clock[k];
    v->v_ready_offset[k][j] = dcn_bw_max2(150.0 / (v->required_dispclk[i][j] / (j + 1)), v->total_repeater_delay + 20.0 / v->projected_dcfclk_deep_sleep + 10.0 / (v->required_dispclk[i][j] / (j + 1))) * v->pixel_clock[k];
    v->time_setup = (v->v_update_offset[k][j] + v->v_update_width[k][j] + v->v_ready_offset[k][j]) / v->pixel_clock[k];
    v->extra_latency = v->urgent_round_trip_and_out_of_order_latency_per_state[i] + (v->total_number_of_active_dpp[i][j] * v->pixel_chunk_size_in_kbyte + v->total_number_of_dcc_active_dpp[i][j] * v->meta_chunk_size) * 1024.0 / v->return_bw_per_state[i];
    if (v->pte_enable == dcn_bw_yes) {
     v->extra_latency = v->extra_latency + v->total_number_of_active_dpp[i][j] * v->pte_chunk_size * 1024.0 / v->return_bw_per_state[i];
    }
    if (v->can_vstartup_lines_exceed_vsync_plus_back_porch_lines_minus_one == dcn_bw_yes) {
     v->maximum_vstartup = v->vtotal[k] - v->vactive[k] - 1.0;
    }
    else {
     v->maximum_vstartup = v->v_sync_plus_back_porch[k] - 1.0;
    }

    do {
     v->line_times_for_prefetch[k] = v->maximum_vstartup - v->urgent_latency / (v->htotal[k] / v->pixel_clock[k]) - (v->time_calc + v->time_setup) / (v->htotal[k] / v->pixel_clock[k]) - (v->dst_y_after_scaler + v->dst_x_after_scaler / v->htotal[k]);
     v->line_times_for_prefetch[k] =dcn_bw_floor2(4.0 * (v->line_times_for_prefetch[k] + 0.125), 1.0) / 4;
     v->prefetch_bw[k] = (v->meta_pte_bytes_per_frame[k] + 2.0 * v->meta_row_bytes[k] + 2.0 * v->dpte_bytes_per_row[k] + v->prefetch_lines_y[k] * v->swath_width_yper_state[i][j][k] *dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) + v->prefetch_lines_c[k] * v->swath_width_yper_state[i][j][k] / 2.0 *dcn_bw_ceil2(v->byte_per_pixel_in_detc[k], 2.0)) / (v->line_times_for_prefetch[k] * v->htotal[k] / v->pixel_clock[k]);

     if (v->pte_enable == dcn_bw_yes && v->dcc_enable[k] == dcn_bw_yes) {
      v->time_for_meta_pte_without_immediate_flip = dcn_bw_max3(
        v->meta_pte_bytes_frame[k] / v->prefetch_bw[k],
        v->extra_latency,
        v->htotal[k] / v->pixel_clock[k] / 4.0);
     } else {
      v->time_for_meta_pte_without_immediate_flip = v->htotal[k] / v->pixel_clock[k] / 4.0;
     }

     if (v->pte_enable == dcn_bw_yes || v->dcc_enable[k] == dcn_bw_yes) {
      v->time_for_meta_and_dpte_row_without_immediate_flip = dcn_bw_max3((
        v->meta_row_bytes[k] + v->dpte_bytes_per_row[k]) / v->prefetch_bw[k],
        v->htotal[k] / v->pixel_clock[k] - v->time_for_meta_pte_without_immediate_flip,
        v->extra_latency);
     } else {
      v->time_for_meta_and_dpte_row_without_immediate_flip = dcn_bw_max2(
        v->htotal[k] / v->pixel_clock[k] - v->time_for_meta_pte_without_immediate_flip,
        v->extra_latency - v->time_for_meta_pte_with_immediate_flip);
     }

     v->lines_for_meta_pte_without_immediate_flip[k] =dcn_bw_floor2(4.0 * (v->time_for_meta_pte_without_immediate_flip / (v->htotal[k] / v->pixel_clock[k]) + 0.125), 1.0) / 4;
     v->lines_for_meta_and_dpte_row_without_immediate_flip[k] =dcn_bw_floor2(4.0 * (v->time_for_meta_and_dpte_row_without_immediate_flip / (v->htotal[k] / v->pixel_clock[k]) + 0.125), 1.0) / 4;
     v->maximum_vstartup = v->maximum_vstartup - 1;

     if (v->lines_for_meta_pte_without_immediate_flip[k] < 32.0 && v->lines_for_meta_and_dpte_row_without_immediate_flip[k] < 16.0)
      break;

    } while(1);
   }
   v->bw_available_for_immediate_flip = v->return_bw_per_state[i];
   for (k = 0; k <= v->number_of_active_planes - 1; k++) {
    v->bw_available_for_immediate_flip = v->bw_available_for_immediate_flip -dcn_bw_max2(v->read_bandwidth[k], v->prefetch_bw[k]);
   }
   for (k = 0; k <= v->number_of_active_planes - 1; k++) {
    v->total_immediate_flip_bytes[k] = 0.0;
    if ((v->source_pixel_format[k] != dcn_bw_yuv420_sub_8 && v->source_pixel_format[k] != dcn_bw_yuv420_sub_10)) {
     v->total_immediate_flip_bytes[k] = v->total_immediate_flip_bytes[k] + v->meta_pte_bytes_per_frame[k] + v->meta_row_bytes[k] + v->dpte_bytes_per_row[k];
    }
   }
   for (k = 0; k <= v->number_of_active_planes - 1; k++) {
    if (v->pte_enable == dcn_bw_yes && v->dcc_enable[k] == dcn_bw_yes) {
     v->time_for_meta_pte_with_immediate_flip =dcn_bw_max5(v->meta_pte_bytes_per_frame[k] / v->prefetch_bw[k], v->meta_pte_bytes_per_frame[k] * v->total_immediate_flip_bytes[k] / (v->bw_available_for_immediate_flip * (v->meta_pte_bytes_per_frame[k] + v->meta_row_bytes[k] + v->dpte_bytes_per_row[k])), v->extra_latency, v->urgent_latency, v->htotal[k] / v->pixel_clock[k] / 4.0);
    }
    else {
     v->time_for_meta_pte_with_immediate_flip = v->htotal[k] / v->pixel_clock[k] / 4.0;
    }
    if (v->pte_enable == dcn_bw_yes || v->dcc_enable[k] == dcn_bw_yes) {
     v->time_for_meta_and_dpte_row_with_immediate_flip =dcn_bw_max5((v->meta_row_bytes[k] + v->dpte_bytes_per_row[k]) / v->prefetch_bw[k], (v->meta_row_bytes[k] + v->dpte_bytes_per_row[k]) * v->total_immediate_flip_bytes[k] / (v->bw_available_for_immediate_flip * (v->meta_pte_bytes_per_frame[k] + v->meta_row_bytes[k] + v->dpte_bytes_per_row[k])), v->htotal[k] / v->pixel_clock[k] - v->time_for_meta_pte_with_immediate_flip, v->extra_latency, 2.0 * v->urgent_latency);
    }
    else {
     v->time_for_meta_and_dpte_row_with_immediate_flip =dcn_bw_max2(v->htotal[k] / v->pixel_clock[k] - v->time_for_meta_pte_with_immediate_flip, v->extra_latency - v->time_for_meta_pte_with_immediate_flip);
    }
    v->lines_for_meta_pte_with_immediate_flip[k] =dcn_bw_floor2(4.0 * (v->time_for_meta_pte_with_immediate_flip / (v->htotal[k] / v->pixel_clock[k]) + 0.125), 1.0) / 4;
    v->lines_for_meta_and_dpte_row_with_immediate_flip[k] =dcn_bw_floor2(4.0 * (v->time_for_meta_and_dpte_row_with_immediate_flip / (v->htotal[k] / v->pixel_clock[k]) + 0.125), 1.0) / 4;
    v->line_times_to_request_prefetch_pixel_data_with_immediate_flip = v->line_times_for_prefetch[k] - v->lines_for_meta_pte_with_immediate_flip[k] - v->lines_for_meta_and_dpte_row_with_immediate_flip[k];
    v->line_times_to_request_prefetch_pixel_data_without_immediate_flip = v->line_times_for_prefetch[k] - v->lines_for_meta_pte_without_immediate_flip[k] - v->lines_for_meta_and_dpte_row_without_immediate_flip[k];
    if (v->line_times_to_request_prefetch_pixel_data_with_immediate_flip > 0.0) {
     v->v_ratio_pre_ywith_immediate_flip[i][j][k] = v->prefetch_lines_y[k] / v->line_times_to_request_prefetch_pixel_data_with_immediate_flip;
     if ((v->swath_height_yper_state[i][j][k] > 4.0)) {
      if (v->line_times_to_request_prefetch_pixel_data_with_immediate_flip - (v->prefill_y[k] - 3.0) / 2.0 > 0.0) {
       v->v_ratio_pre_ywith_immediate_flip[i][j][k] =dcn_bw_max2(v->v_ratio_pre_ywith_immediate_flip[i][j][k], (v->max_num_sw_y[k] * v->swath_height_yper_state[i][j][k]) / (v->line_times_to_request_prefetch_pixel_data_with_immediate_flip - (v->prefill_y[k] - 3.0) / 2.0));
      }
      else {
       v->v_ratio_pre_ywith_immediate_flip[i][j][k] = 999999.0;
      }
     }
     v->v_ratio_pre_cwith_immediate_flip[i][j][k] = v->prefetch_lines_c[k] / v->line_times_to_request_prefetch_pixel_data_with_immediate_flip;
     if ((v->swath_height_cper_state[i][j][k] > 4.0)) {
      if (v->line_times_to_request_prefetch_pixel_data_with_immediate_flip - (v->prefill_c[k] - 3.0) / 2.0 > 0.0) {
       v->v_ratio_pre_cwith_immediate_flip[i][j][k] =dcn_bw_max2(v->v_ratio_pre_cwith_immediate_flip[i][j][k], (v->max_num_sw_c[k] * v->swath_height_cper_state[i][j][k]) / (v->line_times_to_request_prefetch_pixel_data_with_immediate_flip - (v->prefill_c[k] - 3.0) / 2.0));
      }
      else {
       v->v_ratio_pre_cwith_immediate_flip[i][j][k] = 999999.0;
      }
     }
     v->required_prefetch_pixel_data_bw_with_immediate_flip[i][j][k] = v->no_of_dpp[i][j][k] * (v->prefetch_lines_y[k] / v->line_times_to_request_prefetch_pixel_data_with_immediate_flip *dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) + v->prefetch_lines_c[k] / v->line_times_to_request_prefetch_pixel_data_with_immediate_flip *dcn_bw_ceil2(v->byte_per_pixel_in_detc[k], 2.0) / 2.0) * v->swath_width_yper_state[i][j][k] / (v->htotal[k] / v->pixel_clock[k]);
    }
    else {
     v->v_ratio_pre_ywith_immediate_flip[i][j][k] = 999999.0;
     v->v_ratio_pre_cwith_immediate_flip[i][j][k] = 999999.0;
     v->required_prefetch_pixel_data_bw_with_immediate_flip[i][j][k] = 999999.0;
    }
    if (v->line_times_to_request_prefetch_pixel_data_without_immediate_flip > 0.0) {
     v->v_ratio_pre_ywithout_immediate_flip[i][j][k] = v->prefetch_lines_y[k] / v->line_times_to_request_prefetch_pixel_data_without_immediate_flip;
     if ((v->swath_height_yper_state[i][j][k] > 4.0)) {
      if (v->line_times_to_request_prefetch_pixel_data_without_immediate_flip - (v->prefill_y[k] - 3.0) / 2.0 > 0.0) {
       v->v_ratio_pre_ywithout_immediate_flip[i][j][k] =dcn_bw_max2(v->v_ratio_pre_ywithout_immediate_flip[i][j][k], (v->max_num_sw_y[k] * v->swath_height_yper_state[i][j][k]) / (v->line_times_to_request_prefetch_pixel_data_without_immediate_flip - (v->prefill_y[k] - 3.0) / 2.0));
      }
      else {
       v->v_ratio_pre_ywithout_immediate_flip[i][j][k] = 999999.0;
      }
     }
     v->v_ratio_pre_cwithout_immediate_flip[i][j][k] = v->prefetch_lines_c[k] / v->line_times_to_request_prefetch_pixel_data_without_immediate_flip;
     if ((v->swath_height_cper_state[i][j][k] > 4.0)) {
      if (v->line_times_to_request_prefetch_pixel_data_without_immediate_flip - (v->prefill_c[k] - 3.0) / 2.0 > 0.0) {
       v->v_ratio_pre_cwithout_immediate_flip[i][j][k] =dcn_bw_max2(v->v_ratio_pre_cwithout_immediate_flip[i][j][k], (v->max_num_sw_c[k] * v->swath_height_cper_state[i][j][k]) / (v->line_times_to_request_prefetch_pixel_data_without_immediate_flip - (v->prefill_c[k] - 3.0) / 2.0));
      }
      else {
       v->v_ratio_pre_cwithout_immediate_flip[i][j][k] = 999999.0;
      }
     }
     v->required_prefetch_pixel_data_bw_without_immediate_flip[i][j][k] = v->no_of_dpp[i][j][k] * (v->prefetch_lines_y[k] / v->line_times_to_request_prefetch_pixel_data_without_immediate_flip *dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) + v->prefetch_lines_c[k] / v->line_times_to_request_prefetch_pixel_data_without_immediate_flip *dcn_bw_ceil2(v->byte_per_pixel_in_detc[k], 2.0) / 2.0) * v->swath_width_yper_state[i][j][k] / (v->htotal[k] / v->pixel_clock[k]);
    }
    else {
     v->v_ratio_pre_ywithout_immediate_flip[i][j][k] = 999999.0;
     v->v_ratio_pre_cwithout_immediate_flip[i][j][k] = 999999.0;
     v->required_prefetch_pixel_data_bw_without_immediate_flip[i][j][k] = 999999.0;
    }
   }
   v->maximum_read_bandwidth_with_prefetch_with_immediate_flip = 0.0;
   for (k = 0; k <= v->number_of_active_planes - 1; k++) {
    if ((v->source_pixel_format[k] != dcn_bw_yuv420_sub_8 && v->source_pixel_format[k] != dcn_bw_yuv420_sub_10)) {
     v->maximum_read_bandwidth_with_prefetch_with_immediate_flip = v->maximum_read_bandwidth_with_prefetch_with_immediate_flip +dcn_bw_max2(v->read_bandwidth[k], v->required_prefetch_pixel_data_bw_with_immediate_flip[i][j][k]) +dcn_bw_max2(v->meta_pte_bytes_per_frame[k] / (v->lines_for_meta_pte_with_immediate_flip[k] * v->htotal[k] / v->pixel_clock[k]), (v->meta_row_bytes[k] + v->dpte_bytes_per_row[k]) / (v->lines_for_meta_and_dpte_row_with_immediate_flip[k] * v->htotal[k] / v->pixel_clock[k]));
    }
    else {
     v->maximum_read_bandwidth_with_prefetch_with_immediate_flip = v->maximum_read_bandwidth_with_prefetch_with_immediate_flip +dcn_bw_max2(v->read_bandwidth[k], v->required_prefetch_pixel_data_bw_without_immediate_flip[i][j][k]);
    }
   }
   v->maximum_read_bandwidth_with_prefetch_without_immediate_flip = 0.0;
   for (k = 0; k <= v->number_of_active_planes - 1; k++) {
    v->maximum_read_bandwidth_with_prefetch_without_immediate_flip = v->maximum_read_bandwidth_with_prefetch_without_immediate_flip +dcn_bw_max2(v->read_bandwidth[k], v->required_prefetch_pixel_data_bw_without_immediate_flip[i][j][k]);
   }
   v->prefetch_supported_with_immediate_flip[i][j] = dcn_bw_yes;
   if (v->maximum_read_bandwidth_with_prefetch_with_immediate_flip > v->return_bw_per_state[i]) {
    v->prefetch_supported_with_immediate_flip[i][j] = dcn_bw_no;
   }
   for (k = 0; k <= v->number_of_active_planes - 1; k++) {
    if (v->line_times_for_prefetch[k] < 2.0 || v->lines_for_meta_pte_with_immediate_flip[k] >= 8.0 || v->lines_for_meta_and_dpte_row_with_immediate_flip[k] >= 16.0) {
     v->prefetch_supported_with_immediate_flip[i][j] = dcn_bw_no;
    }
   }
   v->prefetch_supported_without_immediate_flip[i][j] = dcn_bw_yes;
   if (v->maximum_read_bandwidth_with_prefetch_without_immediate_flip > v->return_bw_per_state[i]) {
    v->prefetch_supported_without_immediate_flip[i][j] = dcn_bw_no;
   }
   for (k = 0; k <= v->number_of_active_planes - 1; k++) {
    if (v->line_times_for_prefetch[k] < 2.0 || v->lines_for_meta_pte_without_immediate_flip[k] >= 8.0 || v->lines_for_meta_and_dpte_row_without_immediate_flip[k] >= 16.0) {
     v->prefetch_supported_without_immediate_flip[i][j] = dcn_bw_no;
    }
   }
  }
 }
 for (i = 0; i <= number_of_states_plus_one; i++) {
  for (j = 0; j <= 1; j++) {
   v->v_ratio_in_prefetch_supported_with_immediate_flip[i][j] = dcn_bw_yes;
   for (k = 0; k <= v->number_of_active_planes - 1; k++) {
    if ((((v->source_pixel_format[k] != dcn_bw_yuv420_sub_8 && v->source_pixel_format[k] != dcn_bw_yuv420_sub_10) && (v->v_ratio_pre_ywith_immediate_flip[i][j][k] > 4.0 || v->v_ratio_pre_cwith_immediate_flip[i][j][k] > 4.0)) || ((v->source_pixel_format[k] == dcn_bw_yuv420_sub_8 || v->source_pixel_format[k] == dcn_bw_yuv420_sub_10) && (v->v_ratio_pre_ywithout_immediate_flip[i][j][k] > 4.0 || v->v_ratio_pre_cwithout_immediate_flip[i][j][k] > 4.0)))) {
     v->v_ratio_in_prefetch_supported_with_immediate_flip[i][j] = dcn_bw_no;
    }
   }
   v->v_ratio_in_prefetch_supported_without_immediate_flip[i][j] = dcn_bw_yes;
   for (k = 0; k <= v->number_of_active_planes - 1; k++) {
    if ((v->v_ratio_pre_ywithout_immediate_flip[i][j][k] > 4.0 || v->v_ratio_pre_cwithout_immediate_flip[i][j][k] > 4.0)) {
     v->v_ratio_in_prefetch_supported_without_immediate_flip[i][j] = dcn_bw_no;
    }
   }
  }
 }
 /*mode support, voltage state and soc configuration*/

 for (i = number_of_states_plus_one; i >= 0; i--) {
  for (j = 0; j <= 1; j++) {
   if (v->scale_ratio_support == dcn_bw_yes && v->source_format_pixel_and_scan_support == dcn_bw_yes && v->viewport_size_support == dcn_bw_yes && v->bandwidth_support[i] == dcn_bw_yes && v->dio_support[i] == dcn_bw_yes && v->urgent_latency_support[i][j] == dcn_bw_yes && v->rob_support[i] == dcn_bw_yes && v->dispclk_dppclk_support[i][j] == dcn_bw_yes && v->total_available_pipes_support[i][j] == dcn_bw_yes && v->total_available_writeback_support == dcn_bw_yes && v->writeback_latency_support == dcn_bw_yes) {
    if (v->prefetch_supported_with_immediate_flip[i][j] == dcn_bw_yes && v->v_ratio_in_prefetch_supported_with_immediate_flip[i][j] == dcn_bw_yes) {
     v->mode_support_with_immediate_flip[i][j] = dcn_bw_yes;
    }
    else {
     v->mode_support_with_immediate_flip[i][j] = dcn_bw_no;
    }
    if (v->prefetch_supported_without_immediate_flip[i][j] == dcn_bw_yes && v->v_ratio_in_prefetch_supported_without_immediate_flip[i][j] == dcn_bw_yes) {
     v->mode_support_without_immediate_flip[i][j] = dcn_bw_yes;
    }
    else {
     v->mode_support_without_immediate_flip[i][j] = dcn_bw_no;
    }
   }
   else {
    v->mode_support_with_immediate_flip[i][j] = dcn_bw_no;
    v->mode_support_without_immediate_flip[i][j] = dcn_bw_no;
   }
  }
 }
 for (i = number_of_states_plus_one; i >= 0; i--) {
  if ((i == number_of_states_plus_one || v->mode_support_with_immediate_flip[i][1] == dcn_bw_yes || v->mode_support_with_immediate_flip[i][0] == dcn_bw_yes) && i >= v->voltage_override_level) {
   v->voltage_level_with_immediate_flip = i;
  }
 }
 for (i = number_of_states_plus_one; i >= 0; i--) {
  if ((i == number_of_states_plus_one || v->mode_support_without_immediate_flip[i][1] == dcn_bw_yes || v->mode_support_without_immediate_flip[i][0] == dcn_bw_yes) && i >= v->voltage_override_level) {
   v->voltage_level_without_immediate_flip = i;
  }
 }
 if (v->voltage_level_with_immediate_flip == number_of_states_plus_one) {
  v->immediate_flip_supported = dcn_bw_no;
  v->voltage_level = v->voltage_level_without_immediate_flip;
 }
 else {
  v->immediate_flip_supported = dcn_bw_yes;
  v->voltage_level = v->voltage_level_with_immediate_flip;
 }
 v->dcfclk = v->dcfclk_per_state[v->voltage_level];
 v->fabric_and_dram_bandwidth = v->fabric_and_dram_bandwidth_per_state[v->voltage_level];
 for (j = 0; j <= 1; j++) {
  v->required_dispclk_per_ratio[j] = v->required_dispclk[v->voltage_level][j];
  for (k = 0; k <= v->number_of_active_planes - 1; k++) {
   v->dpp_per_plane_per_ratio[j][k] = v->no_of_dpp[v->voltage_level][j][k];
  }
  v->dispclk_dppclk_support_per_ratio[j] = v->dispclk_dppclk_support[v->voltage_level][j];
 }
 v->max_phyclk = v->phyclk_per_state[v->voltage_level];
}
void display_pipe_configuration(struct dcn_bw_internal_vars *v)
{
 int j;
 int k;
 /*display pipe configuration*/

 for (j = 0; j <= 1; j++) {
  v->total_number_of_active_dpp_per_ratio[j] = 0.0;
  for (k = 0; k <= v->number_of_active_planes - 1; k++) {
   v->total_number_of_active_dpp_per_ratio[j] = v->total_number_of_active_dpp_per_ratio[j] + v->dpp_per_plane_per_ratio[j][k];
  }
 }
 if ((v->dispclk_dppclk_support_per_ratio[0] == dcn_bw_yes && v->dispclk_dppclk_support_per_ratio[1] == dcn_bw_no) || (v->dispclk_dppclk_support_per_ratio[0] == v->dispclk_dppclk_support_per_ratio[1] && (v->total_number_of_active_dpp_per_ratio[0] < v->total_number_of_active_dpp_per_ratio[1] || (((v->total_number_of_active_dpp_per_ratio[0] == v->total_number_of_active_dpp_per_ratio[1]) && v->required_dispclk_per_ratio[0] <= 0.5 * v->required_dispclk_per_ratio[1]))))) {
  v->dispclk_dppclk_ratio = 1;
  v->final_error_message = v->error_message[0];
 }
 else {
  v->dispclk_dppclk_ratio = 2;
  v->final_error_message = v->error_message[1];
 }
 for (k = 0; k <= v->number_of_active_planes - 1; k++) {
  v->dpp_per_plane[k] = v->dpp_per_plane_per_ratio[v->dispclk_dppclk_ratio - 1][k];
 }
 for (k = 0; k <= v->number_of_active_planes - 1; k++) {
  if (v->source_pixel_format[k] == dcn_bw_rgb_sub_64) {
   v->byte_per_pix_dety = 8.0;
   v->byte_per_pix_detc = 0.0;
  }
  else if (v->source_pixel_format[k] == dcn_bw_rgb_sub_32) {
   v->byte_per_pix_dety = 4.0;
   v->byte_per_pix_detc = 0.0;
  }
  else if (v->source_pixel_format[k] == dcn_bw_rgb_sub_16) {
   v->byte_per_pix_dety = 2.0;
   v->byte_per_pix_detc = 0.0;
  }
  else if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_8) {
   v->byte_per_pix_dety = 1.0;
   v->byte_per_pix_detc = 2.0;
  }
  else {
   v->byte_per_pix_dety = 4.0f / 3.0f;
   v->byte_per_pix_detc = 8.0f / 3.0f;
  }
  if ((v->source_pixel_format[k] == dcn_bw_rgb_sub_64 || v->source_pixel_format[k] == dcn_bw_rgb_sub_32 || v->source_pixel_format[k] == dcn_bw_rgb_sub_16)) {
   if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
    v->read256_bytes_block_height_y = 1.0;
   }
   else if (v->source_pixel_format[k] == dcn_bw_rgb_sub_64) {
    v->read256_bytes_block_height_y = 4.0;
   }
   else {
    v->read256_bytes_block_height_y = 8.0;
   }
   v->read256_bytes_block_width_y = 256.0 /dcn_bw_ceil2(v->byte_per_pix_dety, 1.0) / v->read256_bytes_block_height_y;
   v->read256_bytes_block_height_c = 0.0;
   v->read256_bytes_block_width_c = 0.0;
  }
  else {
   if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
    v->read256_bytes_block_height_y = 1.0;
    v->read256_bytes_block_height_c = 1.0;
   }
   else if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_8) {
    v->read256_bytes_block_height_y = 16.0;
    v->read256_bytes_block_height_c = 8.0;
   }
   else {
    v->read256_bytes_block_height_y = 8.0;
    v->read256_bytes_block_height_c = 8.0;
   }
   v->read256_bytes_block_width_y = 256.0 /dcn_bw_ceil2(v->byte_per_pix_dety, 1.0) / v->read256_bytes_block_height_y;
   v->read256_bytes_block_width_c = 256.0 /dcn_bw_ceil2(v->byte_per_pix_detc, 2.0) / v->read256_bytes_block_height_c;
  }
  if (v->source_scan[k] == dcn_bw_hor) {
   v->maximum_swath_height_y = v->read256_bytes_block_height_y;
   v->maximum_swath_height_c = v->read256_bytes_block_height_c;
  }
  else {
   v->maximum_swath_height_y = v->read256_bytes_block_width_y;
   v->maximum_swath_height_c = v->read256_bytes_block_width_c;
  }
  if ((v->source_pixel_format[k] == dcn_bw_rgb_sub_64 || v->source_pixel_format[k] == dcn_bw_rgb_sub_32 || v->source_pixel_format[k] == dcn_bw_rgb_sub_16)) {
   if (v->source_surface_mode[k] == dcn_bw_sw_linear || (v->source_pixel_format[k] == dcn_bw_rgb_sub_64 && (v->source_surface_mode[k] == dcn_bw_sw_4_kb_s || v->source_surface_mode[k] == dcn_bw_sw_4_kb_s_x || v->source_surface_mode[k] == dcn_bw_sw_64_kb_s || v->source_surface_mode[k] == dcn_bw_sw_64_kb_s_t || v->source_surface_mode[k] == dcn_bw_sw_64_kb_s_x || v->source_surface_mode[k] == dcn_bw_sw_var_s || v->source_surface_mode[k] == dcn_bw_sw_var_s_x) && v->source_scan[k] == dcn_bw_hor)) {
    v->minimum_swath_height_y = v->maximum_swath_height_y;
   }
   else {
    v->minimum_swath_height_y = v->maximum_swath_height_y / 2.0;
   }
   v->minimum_swath_height_c = v->maximum_swath_height_c;
  }
  else {
   if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
    v->minimum_swath_height_y = v->maximum_swath_height_y;
    v->minimum_swath_height_c = v->maximum_swath_height_c;
   }
   else if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_8 && v->source_scan[k] == dcn_bw_hor) {
    v->minimum_swath_height_y = v->maximum_swath_height_y / 2.0;
    if (v->bug_forcing_luma_and_chroma_request_to_same_size_fixed == dcn_bw_yes) {
     v->minimum_swath_height_c = v->maximum_swath_height_c;
    }
    else {
--> --------------------

--> maximum size reached

--> --------------------