Line data Source code
1 : /*
2 : * Copyright 2017 Advanced Micro Devices, Inc.
3 : *
4 : * Permission is hereby granted, free of charge, to any person obtaining a
5 : * copy of this software and associated documentation files (the "Software"),
6 : * to deal in the Software without restriction, including without limitation
7 : * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 : * and/or sell copies of the Software, and to permit persons to whom the
9 : * Software is furnished to do so, subject to the following conditions:
10 : *
11 : * The above copyright notice and this permission notice shall be included in
12 : * all copies or substantial portions of the Software.
13 : *
14 : * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 : * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 : * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 : * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 : * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 : * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 : * OTHER DEALINGS IN THE SOFTWARE.
21 : *
22 : * Authors: AMD
23 : *
24 : */
25 :
26 : #include "dm_services.h"
27 : #include "dcn_calc_auto.h"
28 : #include "dcn_calc_math.h"
29 :
30 : /*
31 : * NOTE:
32 : * This file is gcc-parseable HW gospel, coming straight from HW engineers.
33 : *
34 : * It doesn't adhere to Linux kernel style and sometimes will do things in odd
35 : * ways. Unless there is something clearly wrong with it the code should
36 : * remain as-is as it provides us with a guarantee from HW that it is correct.
37 : */
38 :
39 : /*REVISION#250*/
40 0 : void scaler_settings_calculation(struct dcn_bw_internal_vars *v)
41 : {
42 : int k;
43 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
44 0 : if (v->allow_different_hratio_vratio == dcn_bw_yes) {
45 0 : if (v->source_scan[k] == dcn_bw_hor) {
46 0 : v->h_ratio[k] = v->viewport_width[k] / v->scaler_rec_out_width[k];
47 0 : v->v_ratio[k] = v->viewport_height[k] / v->scaler_recout_height[k];
48 : }
49 : else {
50 0 : v->h_ratio[k] = v->viewport_height[k] / v->scaler_rec_out_width[k];
51 0 : v->v_ratio[k] = v->viewport_width[k] / v->scaler_recout_height[k];
52 : }
53 : }
54 : else {
55 0 : if (v->source_scan[k] == dcn_bw_hor) {
56 0 : 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]);
57 : }
58 : else {
59 0 : 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]);
60 : }
61 0 : v->v_ratio[k] = v->h_ratio[k];
62 : }
63 0 : if (v->interlace_output[k] == 1.0) {
64 0 : v->v_ratio[k] = 2.0 * v->v_ratio[k];
65 : }
66 0 : if (v->underscan_output[k] == 1.0) {
67 0 : v->h_ratio[k] = v->h_ratio[k] * v->under_scan_factor;
68 0 : v->v_ratio[k] = v->v_ratio[k] * v->under_scan_factor;
69 : }
70 : }
71 : /*scaler taps calculation*/
72 :
73 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
74 0 : if (v->h_ratio[k] > 1.0) {
75 0 : v->acceptable_quality_hta_ps =dcn_bw_min2(v->max_hscl_taps, 2.0 *dcn_bw_ceil2(v->h_ratio[k], 1.0));
76 : }
77 0 : else if (v->h_ratio[k] < 1.0) {
78 0 : v->acceptable_quality_hta_ps = 4.0;
79 : }
80 : else {
81 0 : v->acceptable_quality_hta_ps = 1.0;
82 : }
83 0 : if (v->ta_pscalculation == dcn_bw_override) {
84 0 : v->htaps[k] = v->override_hta_ps[k];
85 : }
86 : else {
87 0 : v->htaps[k] = v->acceptable_quality_hta_ps;
88 : }
89 0 : if (v->v_ratio[k] > 1.0) {
90 0 : v->acceptable_quality_vta_ps =dcn_bw_min2(v->max_vscl_taps, 2.0 *dcn_bw_ceil2(v->v_ratio[k], 1.0));
91 : }
92 0 : else if (v->v_ratio[k] < 1.0) {
93 0 : v->acceptable_quality_vta_ps = 4.0;
94 : }
95 : else {
96 0 : v->acceptable_quality_vta_ps = 1.0;
97 : }
98 0 : if (v->ta_pscalculation == dcn_bw_override) {
99 0 : v->vtaps[k] = v->override_vta_ps[k];
100 : }
101 : else {
102 0 : v->vtaps[k] = v->acceptable_quality_vta_ps;
103 : }
104 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) {
105 0 : v->vta_pschroma[k] = 0.0;
106 0 : v->hta_pschroma[k] = 0.0;
107 : }
108 : else {
109 0 : if (v->ta_pscalculation == dcn_bw_override) {
110 0 : v->vta_pschroma[k] = v->override_vta_pschroma[k];
111 0 : v->hta_pschroma[k] = v->override_hta_pschroma[k];
112 : }
113 : else {
114 0 : v->vta_pschroma[k] = v->acceptable_quality_vta_ps;
115 0 : v->hta_pschroma[k] = v->acceptable_quality_hta_ps;
116 : }
117 : }
118 : }
119 0 : }
120 :
121 0 : void mode_support_and_system_configuration(struct dcn_bw_internal_vars *v)
122 : {
123 : int i;
124 : int j;
125 : int k;
126 : /*mode support, voltage state and soc configuration*/
127 :
128 : /*scale ratio support check*/
129 :
130 0 : v->scale_ratio_support = dcn_bw_yes;
131 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
132 0 : 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]))) {
133 0 : v->scale_ratio_support = dcn_bw_no;
134 : }
135 : }
136 : /*source format, pixel format and scan support check*/
137 :
138 0 : v->source_format_pixel_and_scan_support = dcn_bw_yes;
139 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
140 0 : 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)) {
141 0 : v->source_format_pixel_and_scan_support = dcn_bw_no;
142 : }
143 : }
144 : /*bandwidth support check*/
145 :
146 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
147 0 : if (v->source_scan[k] == dcn_bw_hor) {
148 0 : v->swath_width_ysingle_dpp[k] = v->viewport_width[k];
149 : }
150 : else {
151 0 : v->swath_width_ysingle_dpp[k] = v->viewport_height[k];
152 : }
153 0 : if (v->source_pixel_format[k] == dcn_bw_rgb_sub_64) {
154 0 : v->byte_per_pixel_in_dety[k] = 8.0;
155 0 : v->byte_per_pixel_in_detc[k] = 0.0;
156 : }
157 0 : else if (v->source_pixel_format[k] == dcn_bw_rgb_sub_32) {
158 0 : v->byte_per_pixel_in_dety[k] = 4.0;
159 0 : v->byte_per_pixel_in_detc[k] = 0.0;
160 : }
161 0 : else if (v->source_pixel_format[k] == dcn_bw_rgb_sub_16) {
162 0 : v->byte_per_pixel_in_dety[k] = 2.0;
163 0 : v->byte_per_pixel_in_detc[k] = 0.0;
164 : }
165 0 : else if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_8) {
166 0 : v->byte_per_pixel_in_dety[k] = 1.0;
167 0 : v->byte_per_pixel_in_detc[k] = 2.0;
168 : }
169 : else {
170 0 : v->byte_per_pixel_in_dety[k] = 4.0f / 3.0f;
171 0 : v->byte_per_pixel_in_detc[k] = 8.0f / 3.0f;
172 : }
173 : }
174 0 : v->total_read_bandwidth_consumed_gbyte_per_second = 0.0;
175 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
176 0 : 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]);
177 : if (v->dcc_enable[k] == dcn_bw_yes) {
178 : v->read_bandwidth[k] = v->read_bandwidth[k] * (1 + 1 / 256);
179 : }
180 : 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)) {
181 : v->read_bandwidth[k] = v->read_bandwidth[k] * (1 + 1 / 64);
182 : }
183 : 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)) {
184 : v->read_bandwidth[k] = v->read_bandwidth[k] * (1 + 1 / 256);
185 : }
186 : else if (v->pte_enable == dcn_bw_yes) {
187 : v->read_bandwidth[k] = v->read_bandwidth[k] * (1 + 1 / 512);
188 : }
189 0 : v->total_read_bandwidth_consumed_gbyte_per_second = v->total_read_bandwidth_consumed_gbyte_per_second + v->read_bandwidth[k] / 1000.0;
190 : }
191 0 : v->total_write_bandwidth_consumed_gbyte_per_second = 0.0;
192 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
193 0 : if (v->output[k] == dcn_bw_writeback && v->output_format[k] == dcn_bw_444) {
194 0 : v->write_bandwidth[k] = v->scaler_rec_out_width[k] / (v->htotal[k] / v->pixel_clock[k]) * 4.0;
195 : }
196 0 : else if (v->output[k] == dcn_bw_writeback) {
197 0 : v->write_bandwidth[k] = v->scaler_rec_out_width[k] / (v->htotal[k] / v->pixel_clock[k]) * 1.5;
198 : }
199 : else {
200 0 : v->write_bandwidth[k] = 0.0;
201 : }
202 0 : v->total_write_bandwidth_consumed_gbyte_per_second = v->total_write_bandwidth_consumed_gbyte_per_second + v->write_bandwidth[k] / 1000.0;
203 : }
204 0 : v->total_bandwidth_consumed_gbyte_per_second = v->total_read_bandwidth_consumed_gbyte_per_second + v->total_write_bandwidth_consumed_gbyte_per_second;
205 0 : v->dcc_enabled_in_any_plane = dcn_bw_no;
206 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
207 0 : if (v->dcc_enable[k] == dcn_bw_yes) {
208 0 : v->dcc_enabled_in_any_plane = dcn_bw_yes;
209 : }
210 : }
211 0 : for (i = 0; i <= number_of_states_plus_one; i++) {
212 0 : 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);
213 0 : v->return_bw_per_state[i] = v->return_bw_todcn_per_state;
214 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) {
215 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)));
216 : }
217 0 : 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);
218 0 : if (v->dcc_enabled_in_any_plane == dcn_bw_yes && v->critical_point > 1.0 && v->critical_point < 4.0) {
219 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));
220 : }
221 0 : 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);
222 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) {
223 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)));
224 : }
225 0 : 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);
226 0 : if (v->dcc_enabled_in_any_plane == dcn_bw_yes && v->critical_point > 1.0 && v->critical_point < 4.0) {
227 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));
228 : }
229 : }
230 0 : for (i = 0; i <= number_of_states_plus_one; i++) {
231 0 : 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)) {
232 0 : v->bandwidth_support[i] = dcn_bw_yes;
233 : }
234 : else {
235 0 : v->bandwidth_support[i] = dcn_bw_no;
236 : }
237 : }
238 : /*writeback latency support check*/
239 :
240 0 : v->writeback_latency_support = dcn_bw_yes;
241 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
242 0 : 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) {
243 0 : v->writeback_latency_support = dcn_bw_no;
244 : }
245 0 : 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) {
246 0 : v->writeback_latency_support = dcn_bw_no;
247 : }
248 : }
249 : /*re-ordering buffer support check*/
250 :
251 0 : for (i = 0; i <= number_of_states_plus_one; i++) {
252 0 : 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];
253 0 : 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]) {
254 0 : v->rob_support[i] = dcn_bw_yes;
255 : }
256 : else {
257 0 : v->rob_support[i] = dcn_bw_no;
258 : }
259 : }
260 : /*display io support check*/
261 :
262 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
263 0 : if (v->output[k] == dcn_bw_dp && v->dsc_capability == dcn_bw_yes) {
264 0 : if (v->output_format[k] == dcn_bw_420) {
265 0 : v->required_output_bw = v->pixel_clock[k] / 2.0;
266 : }
267 : else {
268 0 : v->required_output_bw = v->pixel_clock[k];
269 : }
270 : }
271 0 : else if (v->output_format[k] == dcn_bw_420) {
272 0 : v->required_output_bw = v->pixel_clock[k] * 3.0 / 2.0;
273 : }
274 : else {
275 0 : v->required_output_bw = v->pixel_clock[k] * 3.0;
276 : }
277 0 : if (v->output[k] == dcn_bw_hdmi) {
278 0 : v->required_phyclk[k] = v->required_output_bw;
279 0 : switch (v->output_deep_color[k]) {
280 : case dcn_bw_encoder_10bpc:
281 0 : v->required_phyclk[k] = v->required_phyclk[k] * 5.0 / 4;
282 0 : break;
283 : case dcn_bw_encoder_12bpc:
284 0 : v->required_phyclk[k] = v->required_phyclk[k] * 3.0 / 2;
285 0 : break;
286 : default:
287 : break;
288 : }
289 0 : v->required_phyclk[k] = v->required_phyclk[k] / 3.0;
290 : }
291 0 : else if (v->output[k] == dcn_bw_dp) {
292 0 : v->required_phyclk[k] = v->required_output_bw / 4.0;
293 : }
294 : else {
295 0 : v->required_phyclk[k] = 0.0;
296 : }
297 : }
298 0 : for (i = 0; i <= number_of_states_plus_one; i++) {
299 0 : v->dio_support[i] = dcn_bw_yes;
300 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
301 0 : if (v->required_phyclk[k] > v->phyclk_per_state[i] || (v->output[k] == dcn_bw_hdmi && v->required_phyclk[k] > 600.0)) {
302 0 : v->dio_support[i] = dcn_bw_no;
303 : }
304 : }
305 : }
306 : /*total available writeback support check*/
307 :
308 0 : v->total_number_of_active_writeback = 0.0;
309 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
310 0 : if (v->output[k] == dcn_bw_writeback) {
311 0 : v->total_number_of_active_writeback = v->total_number_of_active_writeback + 1.0;
312 : }
313 : }
314 0 : if (v->total_number_of_active_writeback <= v->max_num_writeback) {
315 0 : v->total_available_writeback_support = dcn_bw_yes;
316 : }
317 : else {
318 0 : v->total_available_writeback_support = dcn_bw_no;
319 : }
320 : /*maximum dispclk/dppclk support check*/
321 :
322 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
323 0 : if (v->h_ratio[k] > 1.0) {
324 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));
325 : }
326 : else {
327 0 : v->pscl_factor[k] =dcn_bw_min2(v->max_dchub_topscl_throughput, v->max_pscl_tolb_throughput);
328 : }
329 0 : if (v->byte_per_pixel_in_detc[k] == 0.0) {
330 0 : v->pscl_factor_chroma[k] = 0.0;
331 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);
332 : }
333 : else {
334 0 : if (v->h_ratio[k] / 2.0 > 1.0) {
335 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));
336 : }
337 : else {
338 0 : v->pscl_factor_chroma[k] =dcn_bw_min2(v->max_dchub_topscl_throughput, v->max_pscl_tolb_throughput);
339 : }
340 0 : 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);
341 : }
342 : }
343 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
344 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)) {
345 0 : if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
346 0 : v->read256_block_height_y[k] = 1.0;
347 : }
348 0 : else if (v->source_pixel_format[k] == dcn_bw_rgb_sub_64) {
349 0 : v->read256_block_height_y[k] = 4.0;
350 : }
351 : else {
352 0 : v->read256_block_height_y[k] = 8.0;
353 : }
354 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];
355 0 : v->read256_block_height_c[k] = 0.0;
356 0 : v->read256_block_width_c[k] = 0.0;
357 : }
358 : else {
359 0 : if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
360 0 : v->read256_block_height_y[k] = 1.0;
361 0 : v->read256_block_height_c[k] = 1.0;
362 : }
363 0 : else if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_8) {
364 0 : v->read256_block_height_y[k] = 16.0;
365 0 : v->read256_block_height_c[k] = 8.0;
366 : }
367 : else {
368 0 : v->read256_block_height_y[k] = 8.0;
369 0 : v->read256_block_height_c[k] = 8.0;
370 : }
371 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];
372 0 : 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];
373 : }
374 0 : if (v->source_scan[k] == dcn_bw_hor) {
375 0 : v->max_swath_height_y[k] = v->read256_block_height_y[k];
376 0 : v->max_swath_height_c[k] = v->read256_block_height_c[k];
377 : }
378 : else {
379 0 : v->max_swath_height_y[k] = v->read256_block_width_y[k];
380 0 : v->max_swath_height_c[k] = v->read256_block_width_c[k];
381 : }
382 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)) {
383 0 : 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)) {
384 0 : v->min_swath_height_y[k] = v->max_swath_height_y[k];
385 : }
386 : else {
387 0 : v->min_swath_height_y[k] = v->max_swath_height_y[k] / 2.0;
388 : }
389 0 : v->min_swath_height_c[k] = v->max_swath_height_c[k];
390 : }
391 : else {
392 0 : if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
393 0 : v->min_swath_height_y[k] = v->max_swath_height_y[k];
394 0 : v->min_swath_height_c[k] = v->max_swath_height_c[k];
395 : }
396 0 : else if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_8 && v->source_scan[k] == dcn_bw_hor) {
397 0 : v->min_swath_height_y[k] = v->max_swath_height_y[k] / 2.0;
398 0 : if (v->bug_forcing_luma_and_chroma_request_to_same_size_fixed == dcn_bw_yes) {
399 0 : v->min_swath_height_c[k] = v->max_swath_height_c[k];
400 : }
401 : else {
402 0 : v->min_swath_height_c[k] = v->max_swath_height_c[k] / 2.0;
403 : }
404 : }
405 0 : else if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_10 && v->source_scan[k] == dcn_bw_hor) {
406 0 : v->min_swath_height_c[k] = v->max_swath_height_c[k] / 2.0;
407 0 : if (v->bug_forcing_luma_and_chroma_request_to_same_size_fixed == dcn_bw_yes) {
408 0 : v->min_swath_height_y[k] = v->max_swath_height_y[k];
409 : }
410 : else {
411 0 : v->min_swath_height_y[k] = v->max_swath_height_y[k] / 2.0;
412 : }
413 : }
414 : else {
415 0 : v->min_swath_height_y[k] = v->max_swath_height_y[k];
416 0 : v->min_swath_height_c[k] = v->max_swath_height_c[k];
417 : }
418 : }
419 0 : if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
420 0 : v->maximum_swath_width = 8192.0;
421 : }
422 : else {
423 0 : v->maximum_swath_width = 5120.0;
424 : }
425 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);
426 0 : if (v->byte_per_pixel_in_detc[k] == 0.0) {
427 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);
428 : }
429 : else {
430 0 : 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));
431 : }
432 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);
433 : }
434 0 : for (i = 0; i <= number_of_states_plus_one; i++) {
435 0 : for (j = 0; j <= 1; j++) {
436 0 : v->total_number_of_active_dpp[i][j] = 0.0;
437 0 : v->required_dispclk[i][j] = 0.0;
438 0 : v->dispclk_dppclk_support[i][j] = dcn_bw_yes;
439 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
440 0 : 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);
441 0 : if (v->odm_capability == dcn_bw_yes) {
442 0 : 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);
443 : }
444 : else {
445 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);
446 : }
447 0 : if (i < number_of_states) {
448 0 : v->min_dispclk_using_single_dpp = v->min_dispclk_using_single_dpp * (1.0 + v->dispclk_ramping_margin / 100.0);
449 0 : v->min_dispclk_using_dual_dpp = v->min_dispclk_using_dual_dpp * (1.0 + v->dispclk_ramping_margin / 100.0);
450 : }
451 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) {
452 0 : v->no_of_dpp[i][j][k] = 1.0;
453 0 : v->required_dispclk[i][j] =dcn_bw_max2(v->required_dispclk[i][j], v->min_dispclk_using_single_dpp);
454 : }
455 0 : else if (v->min_dispclk_using_dual_dpp <=dcn_bw_min2(v->max_dispclk[i], (j + 1) * v->max_dppclk[i])) {
456 0 : v->no_of_dpp[i][j][k] = 2.0;
457 0 : v->required_dispclk[i][j] =dcn_bw_max2(v->required_dispclk[i][j], v->min_dispclk_using_dual_dpp);
458 : }
459 : else {
460 0 : v->no_of_dpp[i][j][k] = 2.0;
461 0 : v->required_dispclk[i][j] =dcn_bw_max2(v->required_dispclk[i][j], v->min_dispclk_using_dual_dpp);
462 0 : v->dispclk_dppclk_support[i][j] = dcn_bw_no;
463 : }
464 0 : v->total_number_of_active_dpp[i][j] = v->total_number_of_active_dpp[i][j] + v->no_of_dpp[i][j][k];
465 : }
466 0 : if (v->total_number_of_active_dpp[i][j] > v->max_num_dpp) {
467 0 : v->total_number_of_active_dpp[i][j] = 0.0;
468 0 : v->required_dispclk[i][j] = 0.0;
469 0 : v->dispclk_dppclk_support[i][j] = dcn_bw_yes;
470 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
471 0 : 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);
472 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);
473 0 : if (i < number_of_states) {
474 0 : v->min_dispclk_using_single_dpp = v->min_dispclk_using_single_dpp * (1.0 + v->dispclk_ramping_margin / 100.0);
475 0 : v->min_dispclk_using_dual_dpp = v->min_dispclk_using_dual_dpp * (1.0 + v->dispclk_ramping_margin / 100.0);
476 : }
477 0 : if (v->number_of_dpp_required_for_det_and_lb_size[k] <= 1.0) {
478 0 : v->no_of_dpp[i][j][k] = 1.0;
479 0 : v->required_dispclk[i][j] =dcn_bw_max2(v->required_dispclk[i][j], v->min_dispclk_using_single_dpp);
480 0 : if (v->min_dispclk_using_single_dpp >dcn_bw_min2(v->max_dispclk[i], (j + 1) * v->max_dppclk[i])) {
481 0 : v->dispclk_dppclk_support[i][j] = dcn_bw_no;
482 : }
483 : }
484 : else {
485 0 : v->no_of_dpp[i][j][k] = 2.0;
486 0 : v->required_dispclk[i][j] =dcn_bw_max2(v->required_dispclk[i][j], v->min_dispclk_using_dual_dpp);
487 0 : if (v->min_dispclk_using_dual_dpp >dcn_bw_min2(v->max_dispclk[i], (j + 1) * v->max_dppclk[i])) {
488 0 : v->dispclk_dppclk_support[i][j] = dcn_bw_no;
489 : }
490 : }
491 0 : v->total_number_of_active_dpp[i][j] = v->total_number_of_active_dpp[i][j] + v->no_of_dpp[i][j][k];
492 : }
493 : }
494 : }
495 : }
496 : /*viewport size check*/
497 :
498 0 : v->viewport_size_support = dcn_bw_yes;
499 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
500 0 : if (v->number_of_dpp_required_for_det_and_lb_size[k] > 2.0) {
501 0 : v->viewport_size_support = dcn_bw_no;
502 : }
503 : }
504 : /*total available pipes support check*/
505 :
506 0 : for (i = 0; i <= number_of_states_plus_one; i++) {
507 0 : for (j = 0; j <= 1; j++) {
508 0 : if (v->total_number_of_active_dpp[i][j] <= v->max_num_dpp) {
509 0 : v->total_available_pipes_support[i][j] = dcn_bw_yes;
510 : }
511 : else {
512 0 : v->total_available_pipes_support[i][j] = dcn_bw_no;
513 : }
514 : }
515 : }
516 : /*urgent latency support check*/
517 :
518 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
519 0 : for (i = 0; i <= number_of_states_plus_one; i++) {
520 0 : for (j = 0; j <= 1; j++) {
521 0 : v->swath_width_yper_state[i][j][k] = v->swath_width_ysingle_dpp[k] / v->no_of_dpp[i][j][k];
522 0 : 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];
523 0 : 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];
524 0 : if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_10) {
525 0 : v->rounded_up_max_swath_size_bytes_y =dcn_bw_ceil2(v->rounded_up_max_swath_size_bytes_y, 256.0) + 256;
526 : }
527 0 : if (v->max_swath_height_c[k] > 0.0) {
528 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];
529 : }
530 0 : 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];
531 0 : if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_10) {
532 0 : v->rounded_up_max_swath_size_bytes_c =dcn_bw_ceil2(v->rounded_up_max_swath_size_bytes_c, 256.0) + 256;
533 : }
534 0 : 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) {
535 0 : v->swath_height_yper_state[i][j][k] = v->max_swath_height_y[k];
536 0 : v->swath_height_cper_state[i][j][k] = v->max_swath_height_c[k];
537 : }
538 : else {
539 0 : v->swath_height_yper_state[i][j][k] = v->min_swath_height_y[k];
540 0 : v->swath_height_cper_state[i][j][k] = v->min_swath_height_c[k];
541 : }
542 0 : if (v->byte_per_pixel_in_detc[k] == 0.0) {
543 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];
544 0 : v->lines_in_det_chroma = 0.0;
545 : }
546 0 : else if (v->swath_height_yper_state[i][j][k] <= v->swath_height_cper_state[i][j][k]) {
547 0 : 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];
548 0 : 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);
549 : }
550 : else {
551 0 : 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];
552 0 : 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);
553 : }
554 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);
555 0 : 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);
556 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]);
557 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]);
558 0 : if (v->byte_per_pixel_in_detc[k] == 0.0) {
559 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]);
560 : }
561 : else {
562 0 : 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]));
563 : }
564 : }
565 : }
566 0 : }
567 0 : for (i = 0; i <= number_of_states_plus_one; i++) {
568 0 : for (j = 0; j <= 1; j++) {
569 0 : v->urgent_latency_support[i][j] = dcn_bw_yes;
570 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
571 0 : if (v->urgent_latency_support_us_per_state[i][j][k] < v->urgent_latency / 1.0) {
572 0 : v->urgent_latency_support[i][j] = dcn_bw_no;
573 : }
574 : }
575 : }
576 : }
577 : /*prefetch check*/
578 :
579 0 : for (i = 0; i <= number_of_states_plus_one; i++) {
580 0 : for (j = 0; j <= 1; j++) {
581 0 : v->total_number_of_dcc_active_dpp[i][j] = 0.0;
582 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
583 0 : if (v->dcc_enable[k] == dcn_bw_yes) {
584 0 : 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];
585 : }
586 : }
587 : }
588 : }
589 0 : for (i = 0; i <= number_of_states_plus_one; i++) {
590 0 : for (j = 0; j <= 1; j++) {
591 0 : v->projected_dcfclk_deep_sleep = 8.0;
592 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
593 0 : v->projected_dcfclk_deep_sleep =dcn_bw_max2(v->projected_dcfclk_deep_sleep, v->pixel_clock[k] / 16.0);
594 0 : if (v->byte_per_pixel_in_detc[k] == 0.0) {
595 0 : if (v->v_ratio[k] <= 1.0) {
596 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]);
597 : }
598 : else {
599 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->pscl_factor[k] * v->required_dispclk[i][j] / (1 + j));
600 : }
601 : }
602 : else {
603 0 : if (v->v_ratio[k] <= 1.0) {
604 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]);
605 : }
606 : else {
607 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->pscl_factor[k] * v->required_dispclk[i][j] / (1 + j));
608 : }
609 0 : if (v->v_ratio[k] / 2.0 <= 1.0) {
610 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]);
611 : }
612 : else {
613 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->pscl_factor_chroma[k] * v->required_dispclk[i][j] / (1 + j));
614 : }
615 : }
616 : }
617 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
618 0 : if (v->dcc_enable[k] == dcn_bw_yes) {
619 0 : v->meta_req_height_y = 8.0 * v->read256_block_height_y[k];
620 0 : 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;
621 0 : 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;
622 0 : v->meta_surface_height_y =dcn_bw_ceil2(v->viewport_height[k] - 1.0, v->meta_req_height_y) + v->meta_req_height_y;
623 0 : if (v->pte_enable == dcn_bw_yes) {
624 0 : 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;
625 : }
626 : else {
627 0 : v->meta_pte_bytes_per_frame_y = 0.0;
628 : }
629 0 : if (v->source_scan[k] == dcn_bw_hor) {
630 0 : 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;
631 : }
632 : else {
633 0 : 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;
634 : }
635 : }
636 : else {
637 0 : v->meta_pte_bytes_per_frame_y = 0.0;
638 0 : v->meta_row_bytes_y = 0.0;
639 : }
640 0 : if (v->pte_enable == dcn_bw_yes) {
641 0 : if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
642 0 : v->macro_tile_block_size_bytes_y = 256.0;
643 0 : v->macro_tile_block_height_y = 1.0;
644 : }
645 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) {
646 0 : v->macro_tile_block_size_bytes_y = 4096.0;
647 0 : v->macro_tile_block_height_y = 4.0 * v->read256_block_height_y[k];
648 : }
649 0 : 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) {
650 0 : v->macro_tile_block_size_bytes_y = 64.0 * 1024;
651 0 : v->macro_tile_block_height_y = 16.0 * v->read256_block_height_y[k];
652 : }
653 : else {
654 0 : v->macro_tile_block_size_bytes_y = 256.0 * 1024;
655 0 : v->macro_tile_block_height_y = 32.0 * v->read256_block_height_y[k];
656 : }
657 0 : if (v->macro_tile_block_size_bytes_y <= 65536.0) {
658 0 : v->data_pte_req_height_y = v->macro_tile_block_height_y;
659 : }
660 : else {
661 0 : v->data_pte_req_height_y = 16.0 * v->read256_block_height_y[k];
662 : }
663 0 : 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;
664 0 : if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
665 0 : 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);
666 : }
667 0 : else if (v->source_scan[k] == dcn_bw_hor) {
668 0 : 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);
669 : }
670 : else {
671 0 : 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);
672 : }
673 : }
674 : else {
675 0 : v->dpte_bytes_per_row_y = 0.0;
676 : }
677 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)) {
678 0 : if (v->dcc_enable[k] == dcn_bw_yes) {
679 0 : v->meta_req_height_c = 8.0 * v->read256_block_height_c[k];
680 0 : 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;
681 0 : 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;
682 0 : 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;
683 0 : if (v->pte_enable == dcn_bw_yes) {
684 0 : 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;
685 : }
686 : else {
687 0 : v->meta_pte_bytes_per_frame_c = 0.0;
688 : }
689 0 : if (v->source_scan[k] == dcn_bw_hor) {
690 0 : 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;
691 : }
692 : else {
693 0 : 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;
694 : }
695 : }
696 : else {
697 0 : v->meta_pte_bytes_per_frame_c = 0.0;
698 0 : v->meta_row_bytes_c = 0.0;
699 : }
700 0 : if (v->pte_enable == dcn_bw_yes) {
701 0 : if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
702 0 : v->macro_tile_block_size_bytes_c = 256.0;
703 0 : v->macro_tile_block_height_c = 1.0;
704 : }
705 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) {
706 0 : v->macro_tile_block_size_bytes_c = 4096.0;
707 0 : v->macro_tile_block_height_c = 4.0 * v->read256_block_height_c[k];
708 : }
709 0 : 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) {
710 0 : v->macro_tile_block_size_bytes_c = 64.0 * 1024;
711 0 : v->macro_tile_block_height_c = 16.0 * v->read256_block_height_c[k];
712 : }
713 : else {
714 0 : v->macro_tile_block_size_bytes_c = 256.0 * 1024;
715 0 : v->macro_tile_block_height_c = 32.0 * v->read256_block_height_c[k];
716 : }
717 0 : 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;
718 0 : if (v->macro_tile_block_size_bytes_c <= 65536.0) {
719 0 : v->data_pte_req_height_c = v->macro_tile_block_height_c;
720 : }
721 : else {
722 0 : v->data_pte_req_height_c = 16.0 * v->read256_block_height_c[k];
723 : }
724 0 : 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;
725 0 : if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
726 0 : 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);
727 : }
728 0 : else if (v->source_scan[k] == dcn_bw_hor) {
729 0 : 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);
730 : }
731 : else {
732 0 : 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);
733 : }
734 : }
735 : else {
736 0 : v->dpte_bytes_per_row_c = 0.0;
737 : }
738 : }
739 : else {
740 0 : v->dpte_bytes_per_row_c = 0.0;
741 0 : v->meta_pte_bytes_per_frame_c = 0.0;
742 0 : v->meta_row_bytes_c = 0.0;
743 : }
744 0 : v->dpte_bytes_per_row[k] = v->dpte_bytes_per_row_y + v->dpte_bytes_per_row_c;
745 0 : v->meta_pte_bytes_per_frame[k] = v->meta_pte_bytes_per_frame_y + v->meta_pte_bytes_per_frame_c;
746 0 : v->meta_row_bytes[k] = v->meta_row_bytes_y + v->meta_row_bytes_c;
747 0 : 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;
748 0 : v->prefill_y[k] =dcn_bw_floor2(v->v_init_y, 1.0);
749 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;
750 0 : if (v->prefill_y[k] > 1.0) {
751 0 : v->max_partial_sw_y =dcn_bw_mod((v->prefill_y[k] - 2.0), v->swath_height_yper_state[i][j][k]);
752 : }
753 : else {
754 0 : 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]);
755 : }
756 0 : v->max_partial_sw_y =dcn_bw_max2(1.0, v->max_partial_sw_y);
757 0 : v->prefetch_lines_y[k] = v->max_num_sw_y[k] * v->swath_height_yper_state[i][j][k] + v->max_partial_sw_y;
758 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)) {
759 0 : 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;
760 0 : v->prefill_c[k] =dcn_bw_floor2(v->v_init_c, 1.0);
761 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;
762 0 : if (v->prefill_c[k] > 1.0) {
763 0 : v->max_partial_sw_c =dcn_bw_mod((v->prefill_c[k] - 2.0), v->swath_height_cper_state[i][j][k]);
764 : }
765 : else {
766 0 : 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]);
767 : }
768 0 : v->max_partial_sw_c =dcn_bw_max2(1.0, v->max_partial_sw_c);
769 0 : v->prefetch_lines_c[k] = v->max_num_sw_c[k] * v->swath_height_cper_state[i][j][k] + v->max_partial_sw_c;
770 : }
771 : else {
772 0 : v->prefetch_lines_c[k] = 0.0;
773 : }
774 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];
775 0 : if (v->no_of_dpp[i][j][k] > 1.0) {
776 0 : v->dst_x_after_scaler = v->dst_x_after_scaler + v->scaler_rec_out_width[k] / 2.0;
777 : }
778 0 : if (v->output_format[k] == dcn_bw_420) {
779 0 : v->dst_y_after_scaler = 1.0;
780 : }
781 : else {
782 0 : v->dst_y_after_scaler = 0.0;
783 : }
784 0 : v->time_calc = 24.0 / v->projected_dcfclk_deep_sleep;
785 0 : v->v_update_offset[k][j] = dcn_bw_ceil2(v->htotal[k] / 4.0, 1.0);
786 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]);
787 0 : 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];
788 0 : 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];
789 0 : 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];
790 0 : 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];
791 0 : if (v->pte_enable == dcn_bw_yes) {
792 0 : 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];
793 : }
794 0 : if (v->can_vstartup_lines_exceed_vsync_plus_back_porch_lines_minus_one == dcn_bw_yes) {
795 0 : v->maximum_vstartup = v->vtotal[k] - v->vactive[k] - 1.0;
796 : }
797 : else {
798 0 : v->maximum_vstartup = v->v_sync_plus_back_porch[k] - 1.0;
799 : }
800 :
801 : do {
802 0 : 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]);
803 0 : v->line_times_for_prefetch[k] =dcn_bw_floor2(4.0 * (v->line_times_for_prefetch[k] + 0.125), 1.0) / 4;
804 0 : 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]);
805 :
806 0 : if (v->pte_enable == dcn_bw_yes && v->dcc_enable[k] == dcn_bw_yes) {
807 0 : v->time_for_meta_pte_without_immediate_flip = dcn_bw_max3(
808 0 : v->meta_pte_bytes_frame[k] / v->prefetch_bw[k],
809 : v->extra_latency,
810 0 : v->htotal[k] / v->pixel_clock[k] / 4.0);
811 : } else {
812 0 : v->time_for_meta_pte_without_immediate_flip = v->htotal[k] / v->pixel_clock[k] / 4.0;
813 : }
814 :
815 0 : if (v->pte_enable == dcn_bw_yes || v->dcc_enable[k] == dcn_bw_yes) {
816 0 : v->time_for_meta_and_dpte_row_without_immediate_flip = dcn_bw_max3((
817 0 : v->meta_row_bytes[k] + v->dpte_bytes_per_row[k]) / v->prefetch_bw[k],
818 0 : v->htotal[k] / v->pixel_clock[k] - v->time_for_meta_pte_without_immediate_flip,
819 : v->extra_latency);
820 : } else {
821 0 : v->time_for_meta_and_dpte_row_without_immediate_flip = dcn_bw_max2(
822 0 : v->htotal[k] / v->pixel_clock[k] - v->time_for_meta_pte_without_immediate_flip,
823 0 : v->extra_latency - v->time_for_meta_pte_with_immediate_flip);
824 : }
825 :
826 0 : 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;
827 0 : 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;
828 0 : v->maximum_vstartup = v->maximum_vstartup - 1;
829 :
830 0 : 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)
831 : break;
832 :
833 : } while(1);
834 : }
835 0 : v->bw_available_for_immediate_flip = v->return_bw_per_state[i];
836 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
837 0 : v->bw_available_for_immediate_flip = v->bw_available_for_immediate_flip -dcn_bw_max2(v->read_bandwidth[k], v->prefetch_bw[k]);
838 : }
839 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
840 0 : v->total_immediate_flip_bytes[k] = 0.0;
841 0 : if ((v->source_pixel_format[k] != dcn_bw_yuv420_sub_8 && v->source_pixel_format[k] != dcn_bw_yuv420_sub_10)) {
842 0 : 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];
843 : }
844 : }
845 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
846 0 : if (v->pte_enable == dcn_bw_yes && v->dcc_enable[k] == dcn_bw_yes) {
847 0 : 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);
848 : }
849 : else {
850 0 : v->time_for_meta_pte_with_immediate_flip = v->htotal[k] / v->pixel_clock[k] / 4.0;
851 : }
852 0 : if (v->pte_enable == dcn_bw_yes || v->dcc_enable[k] == dcn_bw_yes) {
853 0 : 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);
854 : }
855 : else {
856 0 : 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);
857 : }
858 0 : 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;
859 0 : 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;
860 0 : 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];
861 0 : 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];
862 0 : if (v->line_times_to_request_prefetch_pixel_data_with_immediate_flip > 0.0) {
863 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;
864 0 : if ((v->swath_height_yper_state[i][j][k] > 4.0)) {
865 0 : if (v->line_times_to_request_prefetch_pixel_data_with_immediate_flip - (v->prefill_y[k] - 3.0) / 2.0 > 0.0) {
866 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));
867 : }
868 : else {
869 0 : v->v_ratio_pre_ywith_immediate_flip[i][j][k] = 999999.0;
870 : }
871 : }
872 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;
873 0 : if ((v->swath_height_cper_state[i][j][k] > 4.0)) {
874 0 : if (v->line_times_to_request_prefetch_pixel_data_with_immediate_flip - (v->prefill_c[k] - 3.0) / 2.0 > 0.0) {
875 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));
876 : }
877 : else {
878 0 : v->v_ratio_pre_cwith_immediate_flip[i][j][k] = 999999.0;
879 : }
880 : }
881 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]);
882 : }
883 : else {
884 0 : v->v_ratio_pre_ywith_immediate_flip[i][j][k] = 999999.0;
885 0 : v->v_ratio_pre_cwith_immediate_flip[i][j][k] = 999999.0;
886 0 : v->required_prefetch_pixel_data_bw_with_immediate_flip[i][j][k] = 999999.0;
887 : }
888 0 : if (v->line_times_to_request_prefetch_pixel_data_without_immediate_flip > 0.0) {
889 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;
890 0 : if ((v->swath_height_yper_state[i][j][k] > 4.0)) {
891 0 : if (v->line_times_to_request_prefetch_pixel_data_without_immediate_flip - (v->prefill_y[k] - 3.0) / 2.0 > 0.0) {
892 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));
893 : }
894 : else {
895 0 : v->v_ratio_pre_ywithout_immediate_flip[i][j][k] = 999999.0;
896 : }
897 : }
898 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;
899 0 : if ((v->swath_height_cper_state[i][j][k] > 4.0)) {
900 0 : if (v->line_times_to_request_prefetch_pixel_data_without_immediate_flip - (v->prefill_c[k] - 3.0) / 2.0 > 0.0) {
901 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));
902 : }
903 : else {
904 0 : v->v_ratio_pre_cwithout_immediate_flip[i][j][k] = 999999.0;
905 : }
906 : }
907 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]);
908 : }
909 : else {
910 0 : v->v_ratio_pre_ywithout_immediate_flip[i][j][k] = 999999.0;
911 0 : v->v_ratio_pre_cwithout_immediate_flip[i][j][k] = 999999.0;
912 0 : v->required_prefetch_pixel_data_bw_without_immediate_flip[i][j][k] = 999999.0;
913 : }
914 : }
915 0 : v->maximum_read_bandwidth_with_prefetch_with_immediate_flip = 0.0;
916 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
917 0 : if ((v->source_pixel_format[k] != dcn_bw_yuv420_sub_8 && v->source_pixel_format[k] != dcn_bw_yuv420_sub_10)) {
918 0 : 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]));
919 : }
920 : else {
921 0 : 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]);
922 : }
923 : }
924 0 : v->maximum_read_bandwidth_with_prefetch_without_immediate_flip = 0.0;
925 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
926 0 : 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]);
927 : }
928 0 : v->prefetch_supported_with_immediate_flip[i][j] = dcn_bw_yes;
929 0 : if (v->maximum_read_bandwidth_with_prefetch_with_immediate_flip > v->return_bw_per_state[i]) {
930 0 : v->prefetch_supported_with_immediate_flip[i][j] = dcn_bw_no;
931 : }
932 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
933 0 : 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) {
934 0 : v->prefetch_supported_with_immediate_flip[i][j] = dcn_bw_no;
935 : }
936 : }
937 0 : v->prefetch_supported_without_immediate_flip[i][j] = dcn_bw_yes;
938 0 : if (v->maximum_read_bandwidth_with_prefetch_without_immediate_flip > v->return_bw_per_state[i]) {
939 0 : v->prefetch_supported_without_immediate_flip[i][j] = dcn_bw_no;
940 : }
941 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
942 0 : 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) {
943 0 : v->prefetch_supported_without_immediate_flip[i][j] = dcn_bw_no;
944 : }
945 : }
946 : }
947 : }
948 0 : for (i = 0; i <= number_of_states_plus_one; i++) {
949 0 : for (j = 0; j <= 1; j++) {
950 0 : v->v_ratio_in_prefetch_supported_with_immediate_flip[i][j] = dcn_bw_yes;
951 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
952 0 : 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)))) {
953 0 : v->v_ratio_in_prefetch_supported_with_immediate_flip[i][j] = dcn_bw_no;
954 : }
955 : }
956 0 : v->v_ratio_in_prefetch_supported_without_immediate_flip[i][j] = dcn_bw_yes;
957 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
958 0 : 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)) {
959 0 : v->v_ratio_in_prefetch_supported_without_immediate_flip[i][j] = dcn_bw_no;
960 : }
961 : }
962 : }
963 : }
964 : /*mode support, voltage state and soc configuration*/
965 :
966 0 : for (i = number_of_states_plus_one; i >= 0; i--) {
967 0 : for (j = 0; j <= 1; j++) {
968 0 : 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) {
969 0 : 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) {
970 0 : v->mode_support_with_immediate_flip[i][j] = dcn_bw_yes;
971 : }
972 : else {
973 0 : v->mode_support_with_immediate_flip[i][j] = dcn_bw_no;
974 : }
975 0 : 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) {
976 0 : v->mode_support_without_immediate_flip[i][j] = dcn_bw_yes;
977 : }
978 : else {
979 0 : v->mode_support_without_immediate_flip[i][j] = dcn_bw_no;
980 : }
981 : }
982 : else {
983 0 : v->mode_support_with_immediate_flip[i][j] = dcn_bw_no;
984 0 : v->mode_support_without_immediate_flip[i][j] = dcn_bw_no;
985 : }
986 : }
987 : }
988 0 : for (i = number_of_states_plus_one; i >= 0; i--) {
989 0 : 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) {
990 0 : v->voltage_level_with_immediate_flip = i;
991 : }
992 : }
993 0 : for (i = number_of_states_plus_one; i >= 0; i--) {
994 0 : 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) {
995 0 : v->voltage_level_without_immediate_flip = i;
996 : }
997 : }
998 0 : if (v->voltage_level_with_immediate_flip == number_of_states_plus_one) {
999 0 : v->immediate_flip_supported = dcn_bw_no;
1000 0 : v->voltage_level = v->voltage_level_without_immediate_flip;
1001 : }
1002 : else {
1003 0 : v->immediate_flip_supported = dcn_bw_yes;
1004 0 : v->voltage_level = v->voltage_level_with_immediate_flip;
1005 : }
1006 0 : v->dcfclk = v->dcfclk_per_state[v->voltage_level];
1007 0 : v->fabric_and_dram_bandwidth = v->fabric_and_dram_bandwidth_per_state[v->voltage_level];
1008 0 : for (j = 0; j <= 1; j++) {
1009 0 : v->required_dispclk_per_ratio[j] = v->required_dispclk[v->voltage_level][j];
1010 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1011 0 : v->dpp_per_plane_per_ratio[j][k] = v->no_of_dpp[v->voltage_level][j][k];
1012 : }
1013 0 : v->dispclk_dppclk_support_per_ratio[j] = v->dispclk_dppclk_support[v->voltage_level][j];
1014 : }
1015 0 : v->max_phyclk = v->phyclk_per_state[v->voltage_level];
1016 0 : }
1017 0 : void display_pipe_configuration(struct dcn_bw_internal_vars *v)
1018 : {
1019 : int j;
1020 : int k;
1021 : /*display pipe configuration*/
1022 :
1023 0 : for (j = 0; j <= 1; j++) {
1024 0 : v->total_number_of_active_dpp_per_ratio[j] = 0.0;
1025 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1026 0 : 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];
1027 : }
1028 : }
1029 0 : 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]))))) {
1030 0 : v->dispclk_dppclk_ratio = 1;
1031 0 : v->final_error_message = v->error_message[0];
1032 : }
1033 : else {
1034 0 : v->dispclk_dppclk_ratio = 2;
1035 0 : v->final_error_message = v->error_message[1];
1036 : }
1037 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1038 0 : v->dpp_per_plane[k] = v->dpp_per_plane_per_ratio[v->dispclk_dppclk_ratio - 1][k];
1039 : }
1040 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1041 0 : if (v->source_pixel_format[k] == dcn_bw_rgb_sub_64) {
1042 0 : v->byte_per_pix_dety = 8.0;
1043 0 : v->byte_per_pix_detc = 0.0;
1044 : }
1045 0 : else if (v->source_pixel_format[k] == dcn_bw_rgb_sub_32) {
1046 0 : v->byte_per_pix_dety = 4.0;
1047 0 : v->byte_per_pix_detc = 0.0;
1048 : }
1049 0 : else if (v->source_pixel_format[k] == dcn_bw_rgb_sub_16) {
1050 0 : v->byte_per_pix_dety = 2.0;
1051 0 : v->byte_per_pix_detc = 0.0;
1052 : }
1053 0 : else if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_8) {
1054 0 : v->byte_per_pix_dety = 1.0;
1055 0 : v->byte_per_pix_detc = 2.0;
1056 : }
1057 : else {
1058 0 : v->byte_per_pix_dety = 4.0f / 3.0f;
1059 0 : v->byte_per_pix_detc = 8.0f / 3.0f;
1060 : }
1061 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)) {
1062 0 : if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
1063 0 : v->read256_bytes_block_height_y = 1.0;
1064 : }
1065 0 : else if (v->source_pixel_format[k] == dcn_bw_rgb_sub_64) {
1066 0 : v->read256_bytes_block_height_y = 4.0;
1067 : }
1068 : else {
1069 0 : v->read256_bytes_block_height_y = 8.0;
1070 : }
1071 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;
1072 0 : v->read256_bytes_block_height_c = 0.0;
1073 0 : v->read256_bytes_block_width_c = 0.0;
1074 : }
1075 : else {
1076 0 : if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
1077 0 : v->read256_bytes_block_height_y = 1.0;
1078 0 : v->read256_bytes_block_height_c = 1.0;
1079 : }
1080 0 : else if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_8) {
1081 0 : v->read256_bytes_block_height_y = 16.0;
1082 0 : v->read256_bytes_block_height_c = 8.0;
1083 : }
1084 : else {
1085 0 : v->read256_bytes_block_height_y = 8.0;
1086 0 : v->read256_bytes_block_height_c = 8.0;
1087 : }
1088 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;
1089 0 : v->read256_bytes_block_width_c = 256.0 /dcn_bw_ceil2(v->byte_per_pix_detc, 2.0) / v->read256_bytes_block_height_c;
1090 : }
1091 0 : if (v->source_scan[k] == dcn_bw_hor) {
1092 0 : v->maximum_swath_height_y = v->read256_bytes_block_height_y;
1093 0 : v->maximum_swath_height_c = v->read256_bytes_block_height_c;
1094 : }
1095 : else {
1096 0 : v->maximum_swath_height_y = v->read256_bytes_block_width_y;
1097 0 : v->maximum_swath_height_c = v->read256_bytes_block_width_c;
1098 : }
1099 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)) {
1100 0 : 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)) {
1101 0 : v->minimum_swath_height_y = v->maximum_swath_height_y;
1102 : }
1103 : else {
1104 0 : v->minimum_swath_height_y = v->maximum_swath_height_y / 2.0;
1105 : }
1106 0 : v->minimum_swath_height_c = v->maximum_swath_height_c;
1107 : }
1108 : else {
1109 0 : if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
1110 0 : v->minimum_swath_height_y = v->maximum_swath_height_y;
1111 0 : v->minimum_swath_height_c = v->maximum_swath_height_c;
1112 : }
1113 0 : else if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_8 && v->source_scan[k] == dcn_bw_hor) {
1114 0 : v->minimum_swath_height_y = v->maximum_swath_height_y / 2.0;
1115 0 : if (v->bug_forcing_luma_and_chroma_request_to_same_size_fixed == dcn_bw_yes) {
1116 0 : v->minimum_swath_height_c = v->maximum_swath_height_c;
1117 : }
1118 : else {
1119 0 : v->minimum_swath_height_c = v->maximum_swath_height_c / 2.0;
1120 : }
1121 : }
1122 0 : else if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_10 && v->source_scan[k] == dcn_bw_hor) {
1123 0 : v->minimum_swath_height_c = v->maximum_swath_height_c / 2.0;
1124 0 : if (v->bug_forcing_luma_and_chroma_request_to_same_size_fixed == dcn_bw_yes) {
1125 0 : v->minimum_swath_height_y = v->maximum_swath_height_y;
1126 : }
1127 : else {
1128 0 : v->minimum_swath_height_y = v->maximum_swath_height_y / 2.0;
1129 : }
1130 : }
1131 : else {
1132 0 : v->minimum_swath_height_y = v->maximum_swath_height_y;
1133 0 : v->minimum_swath_height_c = v->maximum_swath_height_c;
1134 : }
1135 : }
1136 0 : if (v->source_scan[k] == dcn_bw_hor) {
1137 0 : v->swath_width = v->viewport_width[k] / v->dpp_per_plane[k];
1138 : }
1139 : else {
1140 0 : v->swath_width = v->viewport_height[k] / v->dpp_per_plane[k];
1141 : }
1142 0 : v->swath_width_granularity_y = 256.0 /dcn_bw_ceil2(v->byte_per_pix_dety, 1.0) / v->maximum_swath_height_y;
1143 0 : v->rounded_up_max_swath_size_bytes_y = (dcn_bw_ceil2(v->swath_width - 1.0, v->swath_width_granularity_y) + v->swath_width_granularity_y) * v->byte_per_pix_dety * v->maximum_swath_height_y;
1144 0 : if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_10) {
1145 0 : v->rounded_up_max_swath_size_bytes_y =dcn_bw_ceil2(v->rounded_up_max_swath_size_bytes_y, 256.0) + 256;
1146 : }
1147 0 : if (v->maximum_swath_height_c > 0.0) {
1148 0 : v->swath_width_granularity_c = 256.0 /dcn_bw_ceil2(v->byte_per_pix_detc, 2.0) / v->maximum_swath_height_c;
1149 : }
1150 0 : v->rounded_up_max_swath_size_bytes_c = (dcn_bw_ceil2(v->swath_width / 2.0 - 1.0, v->swath_width_granularity_c) + v->swath_width_granularity_c) * v->byte_per_pix_detc * v->maximum_swath_height_c;
1151 0 : if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_10) {
1152 0 : v->rounded_up_max_swath_size_bytes_c =dcn_bw_ceil2(v->rounded_up_max_swath_size_bytes_c, 256.0) + 256;
1153 : }
1154 0 : 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) {
1155 0 : v->swath_height_y[k] = v->maximum_swath_height_y;
1156 0 : v->swath_height_c[k] = v->maximum_swath_height_c;
1157 : }
1158 : else {
1159 0 : v->swath_height_y[k] = v->minimum_swath_height_y;
1160 0 : v->swath_height_c[k] = v->minimum_swath_height_c;
1161 : }
1162 0 : if (v->swath_height_c[k] == 0.0) {
1163 0 : v->det_buffer_size_y[k] = v->det_buffer_size_in_kbyte * 1024.0;
1164 0 : v->det_buffer_size_c[k] = 0.0;
1165 : }
1166 0 : else if (v->swath_height_y[k] <= v->swath_height_c[k]) {
1167 0 : v->det_buffer_size_y[k] = v->det_buffer_size_in_kbyte * 1024.0 / 2.0;
1168 0 : v->det_buffer_size_c[k] = v->det_buffer_size_in_kbyte * 1024.0 / 2.0;
1169 : }
1170 : else {
1171 0 : v->det_buffer_size_y[k] = v->det_buffer_size_in_kbyte * 1024.0 * 2.0 / 3.0;
1172 0 : v->det_buffer_size_c[k] = v->det_buffer_size_in_kbyte * 1024.0 / 3.0;
1173 : }
1174 : }
1175 0 : }
1176 0 : void dispclkdppclkdcfclk_deep_sleep_prefetch_parameters_watermarks_and_performance_calculation(struct dcn_bw_internal_vars *v)
1177 : {
1178 : int k;
1179 : /*dispclk and dppclk calculation*/
1180 :
1181 0 : v->dispclk_with_ramping = 0.0;
1182 0 : v->dispclk_without_ramping = 0.0;
1183 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1184 0 : if (v->h_ratio[k] > 1.0) {
1185 0 : v->pscl_throughput[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));
1186 : }
1187 : else {
1188 0 : v->pscl_throughput[k] =dcn_bw_min2(v->max_dchub_topscl_throughput, v->max_pscl_tolb_throughput);
1189 : }
1190 0 : v->dppclk_using_single_dpp_luma = 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_throughput[k], 1.0);
1191 0 : if ((v->source_pixel_format[k] != dcn_bw_yuv420_sub_8 && v->source_pixel_format[k] != dcn_bw_yuv420_sub_10)) {
1192 0 : v->pscl_throughput_chroma[k] = 0.0;
1193 0 : v->dppclk_using_single_dpp = v->dppclk_using_single_dpp_luma;
1194 : }
1195 : else {
1196 0 : if (v->h_ratio[k] > 1.0) {
1197 0 : v->pscl_throughput_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));
1198 : }
1199 : else {
1200 0 : v->pscl_throughput_chroma[k] =dcn_bw_min2(v->max_dchub_topscl_throughput, v->max_pscl_tolb_throughput);
1201 : }
1202 0 : v->dppclk_using_single_dpp_chroma = v->pixel_clock[k] *dcn_bw_max3(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_throughput_chroma[k], 1.0);
1203 0 : v->dppclk_using_single_dpp =dcn_bw_max2(v->dppclk_using_single_dpp_luma, v->dppclk_using_single_dpp_chroma);
1204 : }
1205 0 : if (v->odm_capable == dcn_bw_yes) {
1206 0 : v->dispclk_with_ramping =dcn_bw_max2(v->dispclk_with_ramping,dcn_bw_max2(v->dppclk_using_single_dpp / v->dpp_per_plane[k] * v->dispclk_dppclk_ratio, v->pixel_clock[k] / v->dpp_per_plane[k]) * (1.0 + v->downspreading / 100.0) * (1.0 + v->dispclk_ramping_margin / 100.0));
1207 0 : v->dispclk_without_ramping =dcn_bw_max2(v->dispclk_without_ramping,dcn_bw_max2(v->dppclk_using_single_dpp / v->dpp_per_plane[k] * v->dispclk_dppclk_ratio, v->pixel_clock[k] / v->dpp_per_plane[k]) * (1.0 + v->downspreading / 100.0));
1208 : }
1209 : else {
1210 0 : v->dispclk_with_ramping =dcn_bw_max2(v->dispclk_with_ramping,dcn_bw_max2(v->dppclk_using_single_dpp / v->dpp_per_plane[k] * v->dispclk_dppclk_ratio, v->pixel_clock[k]) * (1.0 + v->downspreading / 100.0) * (1.0 + v->dispclk_ramping_margin / 100.0));
1211 0 : v->dispclk_without_ramping =dcn_bw_max2(v->dispclk_without_ramping,dcn_bw_max2(v->dppclk_using_single_dpp / v->dpp_per_plane[k] * v->dispclk_dppclk_ratio, v->pixel_clock[k]) * (1.0 + v->downspreading / 100.0));
1212 : }
1213 : }
1214 0 : if (v->dispclk_without_ramping > v->max_dispclk[number_of_states]) {
1215 0 : v->dispclk = v->dispclk_without_ramping;
1216 : }
1217 0 : else if (v->dispclk_with_ramping > v->max_dispclk[number_of_states]) {
1218 0 : v->dispclk = v->max_dispclk[number_of_states];
1219 : }
1220 : else {
1221 0 : v->dispclk = v->dispclk_with_ramping;
1222 : }
1223 0 : v->dppclk = v->dispclk / v->dispclk_dppclk_ratio;
1224 : /*urgent watermark*/
1225 :
1226 0 : v->return_bandwidth_to_dcn =dcn_bw_min2(v->return_bus_width * v->dcfclk, v->fabric_and_dram_bandwidth * 1000.0 * v->percent_of_ideal_drambw_received_after_urg_latency / 100.0);
1227 0 : v->dcc_enabled_any_plane = dcn_bw_no;
1228 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1229 0 : if (v->dcc_enable[k] == dcn_bw_yes) {
1230 0 : v->dcc_enabled_any_plane = dcn_bw_yes;
1231 : }
1232 : }
1233 0 : v->return_bw = v->return_bandwidth_to_dcn;
1234 0 : if (v->dcc_enabled_any_plane == dcn_bw_yes && v->return_bandwidth_to_dcn > v->dcfclk * v->return_bus_width / 4.0) {
1235 0 : v->return_bw =dcn_bw_min2(v->return_bw, v->return_bandwidth_to_dcn * 4.0 * (1.0 - v->urgent_latency / ((v->rob_buffer_size_in_kbyte - v->pixel_chunk_size_in_kbyte) * 1024.0 / (v->return_bandwidth_to_dcn - v->dcfclk * v->return_bus_width / 4.0) + v->urgent_latency)));
1236 : }
1237 0 : v->critical_compression = 2.0 * v->return_bus_width * v->dcfclk * v->urgent_latency / (v->return_bandwidth_to_dcn * v->urgent_latency + (v->rob_buffer_size_in_kbyte - v->pixel_chunk_size_in_kbyte) * 1024.0);
1238 0 : if (v->dcc_enabled_any_plane == dcn_bw_yes && v->critical_compression > 1.0 && v->critical_compression < 4.0) {
1239 0 : v->return_bw =dcn_bw_min2(v->return_bw, dcn_bw_pow(4.0 * v->return_bandwidth_to_dcn * (v->rob_buffer_size_in_kbyte - v->pixel_chunk_size_in_kbyte) * 1024.0 * v->return_bus_width * v->dcfclk * v->urgent_latency / (v->return_bandwidth_to_dcn * v->urgent_latency + (v->rob_buffer_size_in_kbyte - v->pixel_chunk_size_in_kbyte) * 1024.0), 2));
1240 : }
1241 0 : v->return_bandwidth_to_dcn =dcn_bw_min2(v->return_bus_width * v->dcfclk, v->fabric_and_dram_bandwidth * 1000.0);
1242 0 : if (v->dcc_enabled_any_plane == dcn_bw_yes && v->return_bandwidth_to_dcn > v->dcfclk * v->return_bus_width / 4.0) {
1243 0 : v->return_bw =dcn_bw_min2(v->return_bw, v->return_bandwidth_to_dcn * 4.0 * (1.0 - v->urgent_latency / ((v->rob_buffer_size_in_kbyte - v->pixel_chunk_size_in_kbyte) * 1024.0 / (v->return_bandwidth_to_dcn - v->dcfclk * v->return_bus_width / 4.0) + v->urgent_latency)));
1244 : }
1245 0 : v->critical_compression = 2.0 * v->return_bus_width * v->dcfclk * v->urgent_latency / (v->return_bandwidth_to_dcn * v->urgent_latency + (v->rob_buffer_size_in_kbyte - v->pixel_chunk_size_in_kbyte) * 1024.0);
1246 0 : if (v->dcc_enabled_any_plane == dcn_bw_yes && v->critical_compression > 1.0 && v->critical_compression < 4.0) {
1247 0 : v->return_bw =dcn_bw_min2(v->return_bw, dcn_bw_pow(4.0 * v->return_bandwidth_to_dcn * (v->rob_buffer_size_in_kbyte - v->pixel_chunk_size_in_kbyte) * 1024.0 * v->return_bus_width * v->dcfclk * v->urgent_latency / (v->return_bandwidth_to_dcn * v->urgent_latency + (v->rob_buffer_size_in_kbyte - v->pixel_chunk_size_in_kbyte) * 1024.0), 2));
1248 : }
1249 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1250 0 : if (v->source_scan[k] == dcn_bw_hor) {
1251 0 : v->swath_width_y[k] = v->viewport_width[k] / v->dpp_per_plane[k];
1252 : }
1253 : else {
1254 0 : v->swath_width_y[k] = v->viewport_height[k] / v->dpp_per_plane[k];
1255 : }
1256 : }
1257 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1258 0 : if (v->source_pixel_format[k] == dcn_bw_rgb_sub_64) {
1259 0 : v->byte_per_pixel_dety[k] = 8.0;
1260 0 : v->byte_per_pixel_detc[k] = 0.0;
1261 : }
1262 0 : else if (v->source_pixel_format[k] == dcn_bw_rgb_sub_32) {
1263 0 : v->byte_per_pixel_dety[k] = 4.0;
1264 0 : v->byte_per_pixel_detc[k] = 0.0;
1265 : }
1266 0 : else if (v->source_pixel_format[k] == dcn_bw_rgb_sub_16) {
1267 0 : v->byte_per_pixel_dety[k] = 2.0;
1268 0 : v->byte_per_pixel_detc[k] = 0.0;
1269 : }
1270 0 : else if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_8) {
1271 0 : v->byte_per_pixel_dety[k] = 1.0;
1272 0 : v->byte_per_pixel_detc[k] = 2.0;
1273 : }
1274 : else {
1275 0 : v->byte_per_pixel_dety[k] = 4.0f / 3.0f;
1276 0 : v->byte_per_pixel_detc[k] = 8.0f / 3.0f;
1277 : }
1278 : }
1279 0 : v->total_data_read_bandwidth = 0.0;
1280 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1281 0 : v->read_bandwidth_plane_luma[k] = v->swath_width_y[k] * v->dpp_per_plane[k] *dcn_bw_ceil2(v->byte_per_pixel_dety[k], 1.0) / (v->htotal[k] / v->pixel_clock[k]) * v->v_ratio[k];
1282 0 : v->read_bandwidth_plane_chroma[k] = v->swath_width_y[k] / 2.0 * v->dpp_per_plane[k] *dcn_bw_ceil2(v->byte_per_pixel_detc[k], 2.0) / (v->htotal[k] / v->pixel_clock[k]) * v->v_ratio[k] / 2.0;
1283 0 : v->total_data_read_bandwidth = v->total_data_read_bandwidth + v->read_bandwidth_plane_luma[k] + v->read_bandwidth_plane_chroma[k];
1284 : }
1285 0 : v->total_active_dpp = 0.0;
1286 0 : v->total_dcc_active_dpp = 0.0;
1287 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1288 0 : v->total_active_dpp = v->total_active_dpp + v->dpp_per_plane[k];
1289 0 : if (v->dcc_enable[k] == dcn_bw_yes) {
1290 0 : v->total_dcc_active_dpp = v->total_dcc_active_dpp + v->dpp_per_plane[k];
1291 : }
1292 : }
1293 0 : v->urgent_round_trip_and_out_of_order_latency = (v->round_trip_ping_latency_cycles + 32.0) / v->dcfclk + v->urgent_out_of_order_return_per_channel * v->number_of_channels / v->return_bw;
1294 0 : v->last_pixel_of_line_extra_watermark = 0.0;
1295 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1296 0 : if (v->v_ratio[k] <= 1.0) {
1297 0 : v->display_pipe_line_delivery_time_luma[k] = v->swath_width_y[k] * v->dpp_per_plane[k] / v->h_ratio[k] / v->pixel_clock[k];
1298 : }
1299 : else {
1300 0 : v->display_pipe_line_delivery_time_luma[k] = v->swath_width_y[k] / v->pscl_throughput[k] / v->dppclk;
1301 : }
1302 0 : v->data_fabric_line_delivery_time_luma = v->swath_width_y[k] * v->swath_height_y[k] *dcn_bw_ceil2(v->byte_per_pixel_dety[k], 1.0) / (v->return_bw * v->read_bandwidth_plane_luma[k] / v->dpp_per_plane[k] / v->total_data_read_bandwidth);
1303 0 : v->last_pixel_of_line_extra_watermark =dcn_bw_max2(v->last_pixel_of_line_extra_watermark, v->data_fabric_line_delivery_time_luma - v->display_pipe_line_delivery_time_luma[k]);
1304 0 : if (v->byte_per_pixel_detc[k] == 0.0) {
1305 0 : v->display_pipe_line_delivery_time_chroma[k] = 0.0;
1306 : }
1307 : else {
1308 0 : if (v->v_ratio[k] / 2.0 <= 1.0) {
1309 0 : v->display_pipe_line_delivery_time_chroma[k] = v->swath_width_y[k] / 2.0 * v->dpp_per_plane[k] / (v->h_ratio[k] / 2.0) / v->pixel_clock[k];
1310 : }
1311 : else {
1312 0 : v->display_pipe_line_delivery_time_chroma[k] = v->swath_width_y[k] / 2.0 / v->pscl_throughput_chroma[k] / v->dppclk;
1313 : }
1314 0 : v->data_fabric_line_delivery_time_chroma = v->swath_width_y[k] / 2.0 * v->swath_height_c[k] *dcn_bw_ceil2(v->byte_per_pixel_detc[k], 2.0) / (v->return_bw * v->read_bandwidth_plane_chroma[k] / v->dpp_per_plane[k] / v->total_data_read_bandwidth);
1315 0 : v->last_pixel_of_line_extra_watermark =dcn_bw_max2(v->last_pixel_of_line_extra_watermark, v->data_fabric_line_delivery_time_chroma - v->display_pipe_line_delivery_time_chroma[k]);
1316 : }
1317 : }
1318 0 : v->urgent_extra_latency = v->urgent_round_trip_and_out_of_order_latency + (v->total_active_dpp * v->pixel_chunk_size_in_kbyte + v->total_dcc_active_dpp * v->meta_chunk_size) * 1024.0 / v->return_bw;
1319 0 : if (v->pte_enable == dcn_bw_yes) {
1320 0 : v->urgent_extra_latency = v->urgent_extra_latency + v->total_active_dpp * v->pte_chunk_size * 1024.0 / v->return_bw;
1321 : }
1322 0 : v->urgent_watermark = v->urgent_latency + v->last_pixel_of_line_extra_watermark + v->urgent_extra_latency;
1323 0 : v->ptemeta_urgent_watermark = v->urgent_watermark + 2.0 * v->urgent_latency;
1324 : /*nb p-state/dram clock change watermark*/
1325 :
1326 0 : v->dram_clock_change_watermark = v->dram_clock_change_latency + v->urgent_watermark;
1327 0 : v->total_active_writeback = 0.0;
1328 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1329 0 : if (v->output[k] == dcn_bw_writeback) {
1330 0 : v->total_active_writeback = v->total_active_writeback + 1.0;
1331 : }
1332 : }
1333 0 : if (v->total_active_writeback <= 1.0) {
1334 0 : v->writeback_dram_clock_change_watermark = v->dram_clock_change_latency + v->write_back_latency;
1335 : }
1336 : else {
1337 0 : v->writeback_dram_clock_change_watermark = v->dram_clock_change_latency + v->write_back_latency + v->writeback_chunk_size * 1024.0 / 32.0 / v->socclk;
1338 : }
1339 : /*stutter efficiency*/
1340 :
1341 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1342 0 : v->lines_in_dety[k] = v->det_buffer_size_y[k] / v->byte_per_pixel_dety[k] / v->swath_width_y[k];
1343 0 : v->lines_in_dety_rounded_down_to_swath[k] =dcn_bw_floor2(v->lines_in_dety[k], v->swath_height_y[k]);
1344 0 : v->full_det_buffering_time_y[k] = v->lines_in_dety_rounded_down_to_swath[k] * (v->htotal[k] / v->pixel_clock[k]) / v->v_ratio[k];
1345 0 : if (v->byte_per_pixel_detc[k] > 0.0) {
1346 0 : v->lines_in_detc[k] = v->det_buffer_size_c[k] / v->byte_per_pixel_detc[k] / (v->swath_width_y[k] / 2.0);
1347 0 : v->lines_in_detc_rounded_down_to_swath[k] =dcn_bw_floor2(v->lines_in_detc[k], v->swath_height_c[k]);
1348 0 : v->full_det_buffering_time_c[k] = v->lines_in_detc_rounded_down_to_swath[k] * (v->htotal[k] / v->pixel_clock[k]) / (v->v_ratio[k] / 2.0);
1349 : }
1350 : else {
1351 0 : v->lines_in_detc[k] = 0.0;
1352 0 : v->lines_in_detc_rounded_down_to_swath[k] = 0.0;
1353 0 : v->full_det_buffering_time_c[k] = 999999.0;
1354 : }
1355 : }
1356 0 : v->min_full_det_buffering_time = 999999.0;
1357 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1358 0 : if (v->full_det_buffering_time_y[k] < v->min_full_det_buffering_time) {
1359 0 : v->min_full_det_buffering_time = v->full_det_buffering_time_y[k];
1360 0 : v->frame_time_for_min_full_det_buffering_time = v->vtotal[k] * v->htotal[k] / v->pixel_clock[k];
1361 : }
1362 0 : if (v->full_det_buffering_time_c[k] < v->min_full_det_buffering_time) {
1363 0 : v->min_full_det_buffering_time = v->full_det_buffering_time_c[k];
1364 0 : v->frame_time_for_min_full_det_buffering_time = v->vtotal[k] * v->htotal[k] / v->pixel_clock[k];
1365 : }
1366 : }
1367 0 : v->average_read_bandwidth_gbyte_per_second = 0.0;
1368 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1369 0 : if (v->dcc_enable[k] == dcn_bw_yes) {
1370 0 : v->average_read_bandwidth_gbyte_per_second = v->average_read_bandwidth_gbyte_per_second + v->read_bandwidth_plane_luma[k] / v->dcc_rate[k] / 1000.0 + v->read_bandwidth_plane_chroma[k] / v->dcc_rate[k] / 1000.0;
1371 : }
1372 : else {
1373 0 : v->average_read_bandwidth_gbyte_per_second = v->average_read_bandwidth_gbyte_per_second + v->read_bandwidth_plane_luma[k] / 1000.0 + v->read_bandwidth_plane_chroma[k] / 1000.0;
1374 : }
1375 0 : if (v->dcc_enable[k] == dcn_bw_yes) {
1376 0 : v->average_read_bandwidth_gbyte_per_second = v->average_read_bandwidth_gbyte_per_second + v->read_bandwidth_plane_luma[k] / 1000.0 / 256.0 + v->read_bandwidth_plane_chroma[k] / 1000.0 / 256.0;
1377 : }
1378 0 : if (v->pte_enable == dcn_bw_yes) {
1379 0 : v->average_read_bandwidth_gbyte_per_second = v->average_read_bandwidth_gbyte_per_second + v->read_bandwidth_plane_luma[k] / 1000.0 / 512.0 + v->read_bandwidth_plane_chroma[k] / 1000.0 / 512.0;
1380 : }
1381 : }
1382 0 : v->part_of_burst_that_fits_in_rob =dcn_bw_min2(v->min_full_det_buffering_time * v->total_data_read_bandwidth, v->rob_buffer_size_in_kbyte * 1024.0 * v->total_data_read_bandwidth / (v->average_read_bandwidth_gbyte_per_second * 1000.0));
1383 0 : v->stutter_burst_time = v->part_of_burst_that_fits_in_rob * (v->average_read_bandwidth_gbyte_per_second * 1000.0) / v->total_data_read_bandwidth / v->return_bw + (v->min_full_det_buffering_time * v->total_data_read_bandwidth - v->part_of_burst_that_fits_in_rob) / (v->dcfclk * 64.0);
1384 0 : if (v->total_active_writeback == 0.0) {
1385 0 : v->stutter_efficiency_not_including_vblank = (1.0 - (v->sr_exit_time + v->stutter_burst_time) / v->min_full_det_buffering_time) * 100.0;
1386 : }
1387 : else {
1388 0 : v->stutter_efficiency_not_including_vblank = 0.0;
1389 : }
1390 0 : v->smallest_vblank = 999999.0;
1391 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1392 0 : if (v->synchronized_vblank == dcn_bw_yes || v->number_of_active_planes == 1) {
1393 0 : v->v_blank_time = (v->vtotal[k] - v->vactive[k]) * v->htotal[k] / v->pixel_clock[k];
1394 : }
1395 : else {
1396 0 : v->v_blank_time = 0.0;
1397 : }
1398 0 : v->smallest_vblank =dcn_bw_min2(v->smallest_vblank, v->v_blank_time);
1399 : }
1400 0 : v->stutter_efficiency = (v->stutter_efficiency_not_including_vblank / 100.0 * (v->frame_time_for_min_full_det_buffering_time - v->smallest_vblank) + v->smallest_vblank) / v->frame_time_for_min_full_det_buffering_time * 100.0;
1401 : /*dcfclk deep sleep*/
1402 :
1403 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1404 0 : if (v->byte_per_pixel_detc[k] > 0.0) {
1405 0 : v->dcfclk_deep_sleep_per_plane[k] =dcn_bw_max2(1.1 * v->swath_width_y[k] *dcn_bw_ceil2(v->byte_per_pixel_dety[k], 1.0) / 32.0 / v->display_pipe_line_delivery_time_luma[k], 1.1 * v->swath_width_y[k] / 2.0 *dcn_bw_ceil2(v->byte_per_pixel_detc[k], 2.0) / 32.0 / v->display_pipe_line_delivery_time_chroma[k]);
1406 : }
1407 : else {
1408 0 : v->dcfclk_deep_sleep_per_plane[k] = 1.1 * v->swath_width_y[k] *dcn_bw_ceil2(v->byte_per_pixel_dety[k], 1.0) / 64.0 / v->display_pipe_line_delivery_time_luma[k];
1409 : }
1410 0 : v->dcfclk_deep_sleep_per_plane[k] =dcn_bw_max2(v->dcfclk_deep_sleep_per_plane[k], v->pixel_clock[k] / 16.0);
1411 : }
1412 0 : v->dcf_clk_deep_sleep = 8.0;
1413 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1414 0 : v->dcf_clk_deep_sleep =dcn_bw_max2(v->dcf_clk_deep_sleep, v->dcfclk_deep_sleep_per_plane[k]);
1415 : }
1416 : /*stutter watermark*/
1417 :
1418 0 : v->stutter_exit_watermark = v->sr_exit_time + v->last_pixel_of_line_extra_watermark + v->urgent_extra_latency + 10.0 / v->dcf_clk_deep_sleep;
1419 0 : v->stutter_enter_plus_exit_watermark = v->sr_enter_plus_exit_time + v->last_pixel_of_line_extra_watermark + v->urgent_extra_latency;
1420 : /*urgent latency supported*/
1421 :
1422 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1423 0 : v->effective_det_plus_lb_lines_luma =dcn_bw_floor2(v->lines_in_dety[k] +dcn_bw_min2(v->lines_in_dety[k] * v->dppclk * v->byte_per_pixel_dety[k] * v->pscl_throughput[k] / (v->return_bw / v->dpp_per_plane[k]), v->effective_lb_latency_hiding_source_lines_luma), v->swath_height_y[k]);
1424 0 : v->urgent_latency_support_us_luma = v->effective_det_plus_lb_lines_luma * (v->htotal[k] / v->pixel_clock[k]) / v->v_ratio[k] - v->effective_det_plus_lb_lines_luma * v->swath_width_y[k] * v->byte_per_pixel_dety[k] / (v->return_bw / v->dpp_per_plane[k]);
1425 0 : if (v->byte_per_pixel_detc[k] > 0.0) {
1426 0 : v->effective_det_plus_lb_lines_chroma =dcn_bw_floor2(v->lines_in_detc[k] +dcn_bw_min2(v->lines_in_detc[k] * v->dppclk * v->byte_per_pixel_detc[k] * v->pscl_throughput_chroma[k] / (v->return_bw / v->dpp_per_plane[k]), v->effective_lb_latency_hiding_source_lines_chroma), v->swath_height_c[k]);
1427 0 : v->urgent_latency_support_us_chroma = v->effective_det_plus_lb_lines_chroma * (v->htotal[k] / v->pixel_clock[k]) / (v->v_ratio[k] / 2.0) - v->effective_det_plus_lb_lines_chroma * (v->swath_width_y[k] / 2.0) * v->byte_per_pixel_detc[k] / (v->return_bw / v->dpp_per_plane[k]);
1428 0 : v->urgent_latency_support_us[k] =dcn_bw_min2(v->urgent_latency_support_us_luma, v->urgent_latency_support_us_chroma);
1429 : }
1430 : else {
1431 0 : v->urgent_latency_support_us[k] = v->urgent_latency_support_us_luma;
1432 : }
1433 : }
1434 0 : v->min_urgent_latency_support_us = 999999.0;
1435 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1436 0 : v->min_urgent_latency_support_us =dcn_bw_min2(v->min_urgent_latency_support_us, v->urgent_latency_support_us[k]);
1437 : }
1438 : /*non-urgent latency tolerance*/
1439 :
1440 0 : v->non_urgent_latency_tolerance = v->min_urgent_latency_support_us - v->urgent_watermark;
1441 : /*prefetch*/
1442 :
1443 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1444 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)) {
1445 0 : if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
1446 0 : v->block_height256_bytes_y = 1.0;
1447 : }
1448 0 : else if (v->source_pixel_format[k] == dcn_bw_rgb_sub_64) {
1449 0 : v->block_height256_bytes_y = 4.0;
1450 : }
1451 : else {
1452 0 : v->block_height256_bytes_y = 8.0;
1453 : }
1454 0 : v->block_height256_bytes_c = 0.0;
1455 : }
1456 : else {
1457 0 : if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
1458 0 : v->block_height256_bytes_y = 1.0;
1459 0 : v->block_height256_bytes_c = 1.0;
1460 : }
1461 0 : else if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_8) {
1462 0 : v->block_height256_bytes_y = 16.0;
1463 0 : v->block_height256_bytes_c = 8.0;
1464 : }
1465 : else {
1466 0 : v->block_height256_bytes_y = 8.0;
1467 0 : v->block_height256_bytes_c = 8.0;
1468 : }
1469 : }
1470 0 : if (v->dcc_enable[k] == dcn_bw_yes) {
1471 0 : v->meta_request_width_y = 64.0 * 256.0 /dcn_bw_ceil2(v->byte_per_pixel_dety[k], 1.0) / (8.0 * v->block_height256_bytes_y);
1472 0 : v->meta_surf_width_y =dcn_bw_ceil2(v->swath_width_y[k] - 1.0, v->meta_request_width_y) + v->meta_request_width_y;
1473 0 : v->meta_surf_height_y =dcn_bw_ceil2(v->viewport_height[k] - 1.0, 8.0 * v->block_height256_bytes_y) + 8.0 * v->block_height256_bytes_y;
1474 0 : if (v->pte_enable == dcn_bw_yes) {
1475 0 : v->meta_pte_bytes_frame_y = (dcn_bw_ceil2((v->meta_surf_width_y * v->meta_surf_height_y *dcn_bw_ceil2(v->byte_per_pixel_dety[k], 1.0) / 256.0 - 4096.0) / 8.0 / 4096.0, 1.0) + 1) * 64.0;
1476 : }
1477 : else {
1478 0 : v->meta_pte_bytes_frame_y = 0.0;
1479 : }
1480 0 : if (v->source_scan[k] == dcn_bw_hor) {
1481 0 : v->meta_row_byte_y = v->meta_surf_width_y * 8.0 * v->block_height256_bytes_y *dcn_bw_ceil2(v->byte_per_pixel_dety[k], 1.0) / 256.0;
1482 : }
1483 : else {
1484 0 : v->meta_row_byte_y = v->meta_surf_height_y * v->meta_request_width_y *dcn_bw_ceil2(v->byte_per_pixel_dety[k], 1.0) / 256.0;
1485 : }
1486 : }
1487 : else {
1488 0 : v->meta_pte_bytes_frame_y = 0.0;
1489 0 : v->meta_row_byte_y = 0.0;
1490 : }
1491 0 : if (v->pte_enable == dcn_bw_yes) {
1492 0 : if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
1493 0 : v->macro_tile_size_byte_y = 256.0;
1494 0 : v->macro_tile_height_y = 1.0;
1495 : }
1496 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) {
1497 0 : v->macro_tile_size_byte_y = 4096.0;
1498 0 : v->macro_tile_height_y = 4.0 * v->block_height256_bytes_y;
1499 : }
1500 0 : 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) {
1501 0 : v->macro_tile_size_byte_y = 64.0 * 1024;
1502 0 : v->macro_tile_height_y = 16.0 * v->block_height256_bytes_y;
1503 : }
1504 : else {
1505 0 : v->macro_tile_size_byte_y = 256.0 * 1024;
1506 0 : v->macro_tile_height_y = 32.0 * v->block_height256_bytes_y;
1507 : }
1508 0 : if (v->macro_tile_size_byte_y <= 65536.0) {
1509 0 : v->pixel_pte_req_height_y = v->macro_tile_height_y;
1510 : }
1511 : else {
1512 0 : v->pixel_pte_req_height_y = 16.0 * v->block_height256_bytes_y;
1513 : }
1514 0 : v->pixel_pte_req_width_y = 4096.0 /dcn_bw_ceil2(v->byte_per_pixel_dety[k], 1.0) / v->pixel_pte_req_height_y * 8;
1515 0 : if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
1516 0 : v->pixel_pte_bytes_per_row_y = 64.0 * (dcn_bw_ceil2((v->swath_width_y[k] *dcn_bw_min2(128.0, dcn_bw_pow(2.0,dcn_bw_floor2(dcn_bw_log(v->pte_buffer_size_in_requests * v->pixel_pte_req_width_y / v->swath_width_y[k], 2.0), 1.0))) - 1.0) / v->pixel_pte_req_width_y, 1.0) + 1);
1517 : }
1518 0 : else if (v->source_scan[k] == dcn_bw_hor) {
1519 0 : v->pixel_pte_bytes_per_row_y = 64.0 * (dcn_bw_ceil2((v->swath_width_y[k] - 1.0) / v->pixel_pte_req_width_y, 1.0) + 1);
1520 : }
1521 : else {
1522 0 : v->pixel_pte_bytes_per_row_y = 64.0 * (dcn_bw_ceil2((v->viewport_height[k] - 1.0) / v->pixel_pte_req_height_y, 1.0) + 1);
1523 : }
1524 : }
1525 : else {
1526 0 : v->pixel_pte_bytes_per_row_y = 0.0;
1527 : }
1528 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)) {
1529 0 : if (v->dcc_enable[k] == dcn_bw_yes) {
1530 0 : v->meta_request_width_c = 64.0 * 256.0 /dcn_bw_ceil2(v->byte_per_pixel_detc[k], 2.0) / (8.0 * v->block_height256_bytes_c);
1531 0 : v->meta_surf_width_c =dcn_bw_ceil2(v->swath_width_y[k] / 2.0 - 1.0, v->meta_request_width_c) + v->meta_request_width_c;
1532 0 : v->meta_surf_height_c =dcn_bw_ceil2(v->viewport_height[k] / 2.0 - 1.0, 8.0 * v->block_height256_bytes_c) + 8.0 * v->block_height256_bytes_c;
1533 0 : if (v->pte_enable == dcn_bw_yes) {
1534 0 : v->meta_pte_bytes_frame_c = (dcn_bw_ceil2((v->meta_surf_width_c * v->meta_surf_height_c *dcn_bw_ceil2(v->byte_per_pixel_detc[k], 2.0) / 256.0 - 4096.0) / 8.0 / 4096.0, 1.0) + 1) * 64.0;
1535 : }
1536 : else {
1537 0 : v->meta_pte_bytes_frame_c = 0.0;
1538 : }
1539 0 : if (v->source_scan[k] == dcn_bw_hor) {
1540 0 : v->meta_row_byte_c = v->meta_surf_width_c * 8.0 * v->block_height256_bytes_c *dcn_bw_ceil2(v->byte_per_pixel_detc[k], 2.0) / 256.0;
1541 : }
1542 : else {
1543 0 : v->meta_row_byte_c = v->meta_surf_height_c * v->meta_request_width_c *dcn_bw_ceil2(v->byte_per_pixel_detc[k], 2.0) / 256.0;
1544 : }
1545 : }
1546 : else {
1547 0 : v->meta_pte_bytes_frame_c = 0.0;
1548 0 : v->meta_row_byte_c = 0.0;
1549 : }
1550 0 : if (v->pte_enable == dcn_bw_yes) {
1551 0 : if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
1552 0 : v->macro_tile_size_bytes_c = 256.0;
1553 0 : v->macro_tile_height_c = 1.0;
1554 : }
1555 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) {
1556 0 : v->macro_tile_size_bytes_c = 4096.0;
1557 0 : v->macro_tile_height_c = 4.0 * v->block_height256_bytes_c;
1558 : }
1559 0 : 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) {
1560 0 : v->macro_tile_size_bytes_c = 64.0 * 1024;
1561 0 : v->macro_tile_height_c = 16.0 * v->block_height256_bytes_c;
1562 : }
1563 : else {
1564 0 : v->macro_tile_size_bytes_c = 256.0 * 1024;
1565 0 : v->macro_tile_height_c = 32.0 * v->block_height256_bytes_c;
1566 : }
1567 0 : if (v->macro_tile_size_bytes_c <= 65536.0) {
1568 0 : v->pixel_pte_req_height_c = v->macro_tile_height_c;
1569 : }
1570 : else {
1571 0 : v->pixel_pte_req_height_c = 16.0 * v->block_height256_bytes_c;
1572 : }
1573 0 : v->pixel_pte_req_width_c = 4096.0 /dcn_bw_ceil2(v->byte_per_pixel_detc[k], 2.0) / v->pixel_pte_req_height_c * 8;
1574 0 : if (v->source_surface_mode[k] == dcn_bw_sw_linear) {
1575 0 : v->pixel_pte_bytes_per_row_c = 64.0 * (dcn_bw_ceil2((v->swath_width_y[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->pixel_pte_req_width_c / (v->swath_width_y[k] / 2.0), 2.0), 1.0))) - 1.0) / v->pixel_pte_req_width_c, 1.0) + 1);
1576 : }
1577 0 : else if (v->source_scan[k] == dcn_bw_hor) {
1578 0 : v->pixel_pte_bytes_per_row_c = 64.0 * (dcn_bw_ceil2((v->swath_width_y[k] / 2.0 - 1.0) / v->pixel_pte_req_width_c, 1.0) + 1);
1579 : }
1580 : else {
1581 0 : v->pixel_pte_bytes_per_row_c = 64.0 * (dcn_bw_ceil2((v->viewport_height[k] / 2.0 - 1.0) / v->pixel_pte_req_height_c, 1.0) + 1);
1582 : }
1583 : }
1584 : else {
1585 0 : v->pixel_pte_bytes_per_row_c = 0.0;
1586 : }
1587 : }
1588 : else {
1589 0 : v->pixel_pte_bytes_per_row_c = 0.0;
1590 0 : v->meta_pte_bytes_frame_c = 0.0;
1591 0 : v->meta_row_byte_c = 0.0;
1592 : }
1593 0 : v->pixel_pte_bytes_per_row[k] = v->pixel_pte_bytes_per_row_y + v->pixel_pte_bytes_per_row_c;
1594 0 : v->meta_pte_bytes_frame[k] = v->meta_pte_bytes_frame_y + v->meta_pte_bytes_frame_c;
1595 0 : v->meta_row_byte[k] = v->meta_row_byte_y + v->meta_row_byte_c;
1596 0 : v->v_init_pre_fill_y[k] =dcn_bw_floor2((v->v_ratio[k] + v->vtaps[k] + 1.0 + v->interlace_output[k] * 0.5 * v->v_ratio[k]) / 2.0, 1.0);
1597 0 : v->max_num_swath_y[k] =dcn_bw_ceil2((v->v_init_pre_fill_y[k] - 1.0) / v->swath_height_y[k], 1.0) + 1;
1598 0 : if (v->v_init_pre_fill_y[k] > 1.0) {
1599 0 : v->max_partial_swath_y =dcn_bw_mod((v->v_init_pre_fill_y[k] - 2.0), v->swath_height_y[k]);
1600 : }
1601 : else {
1602 0 : v->max_partial_swath_y =dcn_bw_mod((v->v_init_pre_fill_y[k] + v->swath_height_y[k] - 2.0), v->swath_height_y[k]);
1603 : }
1604 0 : v->max_partial_swath_y =dcn_bw_max2(1.0, v->max_partial_swath_y);
1605 0 : v->prefetch_source_lines_y[k] = v->max_num_swath_y[k] * v->swath_height_y[k] + v->max_partial_swath_y;
1606 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)) {
1607 0 : v->v_init_pre_fill_c[k] =dcn_bw_floor2((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, 1.0);
1608 0 : v->max_num_swath_c[k] =dcn_bw_ceil2((v->v_init_pre_fill_c[k] - 1.0) / v->swath_height_c[k], 1.0) + 1;
1609 0 : if (v->v_init_pre_fill_c[k] > 1.0) {
1610 0 : v->max_partial_swath_c =dcn_bw_mod((v->v_init_pre_fill_c[k] - 2.0), v->swath_height_c[k]);
1611 : }
1612 : else {
1613 0 : v->max_partial_swath_c =dcn_bw_mod((v->v_init_pre_fill_c[k] + v->swath_height_c[k] - 2.0), v->swath_height_c[k]);
1614 : }
1615 0 : v->max_partial_swath_c =dcn_bw_max2(1.0, v->max_partial_swath_c);
1616 : }
1617 : else {
1618 0 : v->max_num_swath_c[k] = 0.0;
1619 0 : v->max_partial_swath_c = 0.0;
1620 : }
1621 0 : v->prefetch_source_lines_c[k] = v->max_num_swath_c[k] * v->swath_height_c[k] + v->max_partial_swath_c;
1622 : }
1623 0 : v->t_calc = 24.0 / v->dcf_clk_deep_sleep;
1624 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1625 0 : if (v->can_vstartup_lines_exceed_vsync_plus_back_porch_lines_minus_one == dcn_bw_yes) {
1626 0 : v->max_vstartup_lines[k] = v->vtotal[k] - v->vactive[k] - 1.0;
1627 : }
1628 : else {
1629 0 : v->max_vstartup_lines[k] = v->v_sync_plus_back_porch[k] - 1.0;
1630 : }
1631 : }
1632 0 : v->next_prefetch_mode = 0.0;
1633 : do {
1634 0 : v->v_startup_lines = 13.0;
1635 : do {
1636 0 : v->planes_with_room_to_increase_vstartup_prefetch_bw_less_than_active_bw = dcn_bw_yes;
1637 0 : v->planes_with_room_to_increase_vstartup_vratio_prefetch_more_than4 = dcn_bw_no;
1638 0 : v->planes_with_room_to_increase_vstartup_destination_line_times_for_prefetch_less_than2 = dcn_bw_no;
1639 0 : v->v_ratio_prefetch_more_than4 = dcn_bw_no;
1640 0 : v->destination_line_times_for_prefetch_less_than2 = dcn_bw_no;
1641 0 : v->prefetch_mode = v->next_prefetch_mode;
1642 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1643 0 : v->dstx_after_scaler = 90.0 * v->pixel_clock[k] / v->dppclk + 42.0 * v->pixel_clock[k] / v->dispclk;
1644 0 : if (v->dpp_per_plane[k] > 1.0) {
1645 0 : v->dstx_after_scaler = v->dstx_after_scaler + v->scaler_rec_out_width[k] / 2.0;
1646 : }
1647 0 : if (v->output_format[k] == dcn_bw_420) {
1648 0 : v->dsty_after_scaler = 1.0;
1649 : }
1650 : else {
1651 0 : v->dsty_after_scaler = 0.0;
1652 : }
1653 0 : v->v_update_offset_pix[k] = dcn_bw_ceil2(v->htotal[k] / 4.0, 1.0);
1654 0 : v->total_repeater_delay_time = v->max_inter_dcn_tile_repeaters * (2.0 / v->dppclk + 3.0 / v->dispclk);
1655 0 : v->v_update_width_pix[k] = (14.0 / v->dcf_clk_deep_sleep + 12.0 / v->dppclk + v->total_repeater_delay_time) * v->pixel_clock[k];
1656 0 : v->v_ready_offset_pix[k] = dcn_bw_max2(150.0 / v->dppclk, v->total_repeater_delay_time + 20.0 / v->dcf_clk_deep_sleep + 10.0 / v->dppclk) * v->pixel_clock[k];
1657 0 : v->t_setup = (v->v_update_offset_pix[k] + v->v_update_width_pix[k] + v->v_ready_offset_pix[k]) / v->pixel_clock[k];
1658 0 : v->v_startup[k] =dcn_bw_min2(v->v_startup_lines, v->max_vstartup_lines[k]);
1659 0 : if (v->prefetch_mode == 0.0) {
1660 0 : v->t_wait =dcn_bw_max3(v->dram_clock_change_latency + v->urgent_latency, v->sr_enter_plus_exit_time, v->urgent_latency);
1661 : }
1662 0 : else if (v->prefetch_mode == 1.0) {
1663 0 : v->t_wait =dcn_bw_max2(v->sr_enter_plus_exit_time, v->urgent_latency);
1664 : }
1665 : else {
1666 0 : v->t_wait = v->urgent_latency;
1667 : }
1668 0 : v->destination_lines_for_prefetch[k] =dcn_bw_floor2(4.0 * (v->v_startup[k] - v->t_wait / (v->htotal[k] / v->pixel_clock[k]) - (v->t_calc + v->t_setup) / (v->htotal[k] / v->pixel_clock[k]) - (v->dsty_after_scaler + v->dstx_after_scaler / v->htotal[k]) + 0.125), 1.0) / 4;
1669 0 : if (v->destination_lines_for_prefetch[k] > 0.0) {
1670 0 : v->prefetch_bandwidth[k] = (v->meta_pte_bytes_frame[k] + 2.0 * v->meta_row_byte[k] + 2.0 * v->pixel_pte_bytes_per_row[k] + v->prefetch_source_lines_y[k] * v->swath_width_y[k] *dcn_bw_ceil2(v->byte_per_pixel_dety[k], 1.0) + v->prefetch_source_lines_c[k] * v->swath_width_y[k] / 2.0 *dcn_bw_ceil2(v->byte_per_pixel_detc[k], 2.0)) / (v->destination_lines_for_prefetch[k] * v->htotal[k] / v->pixel_clock[k]);
1671 : }
1672 : else {
1673 0 : v->prefetch_bandwidth[k] = 999999.0;
1674 : }
1675 : }
1676 0 : v->bandwidth_available_for_immediate_flip = v->return_bw;
1677 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1678 0 : v->bandwidth_available_for_immediate_flip = v->bandwidth_available_for_immediate_flip -dcn_bw_max2(v->read_bandwidth_plane_luma[k] + v->read_bandwidth_plane_chroma[k], v->prefetch_bandwidth[k]);
1679 : }
1680 0 : v->tot_immediate_flip_bytes = 0.0;
1681 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1682 0 : if (v->immediate_flip_supported == dcn_bw_yes && (v->source_pixel_format[k] != dcn_bw_yuv420_sub_8 && v->source_pixel_format[k] != dcn_bw_yuv420_sub_10)) {
1683 0 : v->tot_immediate_flip_bytes = v->tot_immediate_flip_bytes + v->meta_pte_bytes_frame[k] + v->meta_row_byte[k] + v->pixel_pte_bytes_per_row[k];
1684 : }
1685 : }
1686 0 : v->max_rd_bandwidth = 0.0;
1687 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1688 0 : if (v->pte_enable == dcn_bw_yes && v->dcc_enable[k] == dcn_bw_yes) {
1689 0 : if (v->immediate_flip_supported == dcn_bw_yes && (v->source_pixel_format[k] != dcn_bw_yuv420_sub_8 && v->source_pixel_format[k] != dcn_bw_yuv420_sub_10)) {
1690 0 : v->time_for_fetching_meta_pte =dcn_bw_max5(v->meta_pte_bytes_frame[k] / v->prefetch_bandwidth[k], v->meta_pte_bytes_frame[k] * v->tot_immediate_flip_bytes / (v->bandwidth_available_for_immediate_flip * (v->meta_pte_bytes_frame[k] + v->meta_row_byte[k] + v->pixel_pte_bytes_per_row[k])), v->urgent_extra_latency, v->urgent_latency, v->htotal[k] / v->pixel_clock[k] / 4.0);
1691 : }
1692 : else {
1693 0 : v->time_for_fetching_meta_pte =dcn_bw_max3(v->meta_pte_bytes_frame[k] / v->prefetch_bandwidth[k], v->urgent_extra_latency, v->htotal[k] / v->pixel_clock[k] / 4.0);
1694 : }
1695 : }
1696 : else {
1697 0 : v->time_for_fetching_meta_pte = v->htotal[k] / v->pixel_clock[k] / 4.0;
1698 : }
1699 0 : v->destination_lines_to_request_vm_inv_blank[k] =dcn_bw_floor2(4.0 * (v->time_for_fetching_meta_pte / (v->htotal[k] / v->pixel_clock[k]) + 0.125), 1.0) / 4;
1700 0 : if ((v->pte_enable == dcn_bw_yes || v->dcc_enable[k] == dcn_bw_yes)) {
1701 0 : if (v->immediate_flip_supported == dcn_bw_yes && (v->source_pixel_format[k] != dcn_bw_yuv420_sub_8 && v->source_pixel_format[k] != dcn_bw_yuv420_sub_10)) {
1702 0 : v->time_for_fetching_row_in_vblank =dcn_bw_max5((v->meta_row_byte[k] + v->pixel_pte_bytes_per_row[k]) / v->prefetch_bandwidth[k], (v->meta_row_byte[k] + v->pixel_pte_bytes_per_row[k]) * v->tot_immediate_flip_bytes / (v->bandwidth_available_for_immediate_flip * (v->meta_pte_bytes_frame[k] + v->meta_row_byte[k] + v->pixel_pte_bytes_per_row[k])), v->urgent_extra_latency, 2.0 * v->urgent_latency, v->htotal[k] / v->pixel_clock[k] - v->time_for_fetching_meta_pte);
1703 : }
1704 : else {
1705 0 : v->time_for_fetching_row_in_vblank =dcn_bw_max3((v->meta_row_byte[k] + v->pixel_pte_bytes_per_row[k]) / v->prefetch_bandwidth[k], v->urgent_extra_latency, v->htotal[k] / v->pixel_clock[k] - v->time_for_fetching_meta_pte);
1706 : }
1707 : }
1708 : else {
1709 0 : v->time_for_fetching_row_in_vblank =dcn_bw_max2(v->urgent_extra_latency - v->time_for_fetching_meta_pte, v->htotal[k] / v->pixel_clock[k] - v->time_for_fetching_meta_pte);
1710 : }
1711 0 : v->destination_lines_to_request_row_in_vblank[k] =dcn_bw_floor2(4.0 * (v->time_for_fetching_row_in_vblank / (v->htotal[k] / v->pixel_clock[k]) + 0.125), 1.0) / 4;
1712 0 : v->lines_to_request_prefetch_pixel_data = v->destination_lines_for_prefetch[k] - v->destination_lines_to_request_vm_inv_blank[k] - v->destination_lines_to_request_row_in_vblank[k];
1713 0 : if (v->lines_to_request_prefetch_pixel_data > 0.0) {
1714 0 : v->v_ratio_prefetch_y[k] = v->prefetch_source_lines_y[k] / v->lines_to_request_prefetch_pixel_data;
1715 0 : if ((v->swath_height_y[k] > 4.0)) {
1716 0 : if (v->lines_to_request_prefetch_pixel_data > (v->v_init_pre_fill_y[k] - 3.0) / 2.0) {
1717 0 : v->v_ratio_prefetch_y[k] =dcn_bw_max2(v->v_ratio_prefetch_y[k], v->max_num_swath_y[k] * v->swath_height_y[k] / (v->lines_to_request_prefetch_pixel_data - (v->v_init_pre_fill_y[k] - 3.0) / 2.0));
1718 : }
1719 : else {
1720 0 : v->v_ratio_prefetch_y[k] = 999999.0;
1721 : }
1722 : }
1723 : }
1724 : else {
1725 0 : v->v_ratio_prefetch_y[k] = 999999.0;
1726 : }
1727 0 : v->v_ratio_prefetch_y[k] =dcn_bw_max2(v->v_ratio_prefetch_y[k], 1.0);
1728 0 : if (v->lines_to_request_prefetch_pixel_data > 0.0) {
1729 0 : v->v_ratio_prefetch_c[k] = v->prefetch_source_lines_c[k] / v->lines_to_request_prefetch_pixel_data;
1730 0 : if ((v->swath_height_c[k] > 4.0)) {
1731 0 : if (v->lines_to_request_prefetch_pixel_data > (v->v_init_pre_fill_c[k] - 3.0) / 2.0) {
1732 0 : v->v_ratio_prefetch_c[k] =dcn_bw_max2(v->v_ratio_prefetch_c[k], v->max_num_swath_c[k] * v->swath_height_c[k] / (v->lines_to_request_prefetch_pixel_data - (v->v_init_pre_fill_c[k] - 3.0) / 2.0));
1733 : }
1734 : else {
1735 0 : v->v_ratio_prefetch_c[k] = 999999.0;
1736 : }
1737 : }
1738 : }
1739 : else {
1740 0 : v->v_ratio_prefetch_c[k] = 999999.0;
1741 : }
1742 0 : v->v_ratio_prefetch_c[k] =dcn_bw_max2(v->v_ratio_prefetch_c[k], 1.0);
1743 0 : if (v->lines_to_request_prefetch_pixel_data > 0.0) {
1744 0 : v->required_prefetch_pix_data_bw = v->dpp_per_plane[k] * (v->prefetch_source_lines_y[k] / v->lines_to_request_prefetch_pixel_data *dcn_bw_ceil2(v->byte_per_pixel_dety[k], 1.0) + v->prefetch_source_lines_c[k] / v->lines_to_request_prefetch_pixel_data *dcn_bw_ceil2(v->byte_per_pixel_detc[k], 2.0) / 2.0) * v->swath_width_y[k] / (v->htotal[k] / v->pixel_clock[k]);
1745 : }
1746 : else {
1747 0 : v->required_prefetch_pix_data_bw = 999999.0;
1748 : }
1749 0 : v->max_rd_bandwidth = v->max_rd_bandwidth +dcn_bw_max2(v->read_bandwidth_plane_luma[k] + v->read_bandwidth_plane_chroma[k], v->required_prefetch_pix_data_bw);
1750 0 : if (v->immediate_flip_supported == dcn_bw_yes && (v->source_pixel_format[k] != dcn_bw_yuv420_sub_8 && v->source_pixel_format[k] != dcn_bw_yuv420_sub_10)) {
1751 0 : v->max_rd_bandwidth = v->max_rd_bandwidth +dcn_bw_max2(v->meta_pte_bytes_frame[k] / (v->destination_lines_to_request_vm_inv_blank[k] * v->htotal[k] / v->pixel_clock[k]), (v->meta_row_byte[k] + v->pixel_pte_bytes_per_row[k]) / (v->destination_lines_to_request_row_in_vblank[k] * v->htotal[k] / v->pixel_clock[k]));
1752 : }
1753 0 : if (v->v_ratio_prefetch_y[k] > 4.0 || v->v_ratio_prefetch_c[k] > 4.0) {
1754 0 : v->v_ratio_prefetch_more_than4 = dcn_bw_yes;
1755 : }
1756 0 : if (v->destination_lines_for_prefetch[k] < 2.0) {
1757 0 : v->destination_line_times_for_prefetch_less_than2 = dcn_bw_yes;
1758 : }
1759 0 : if (v->max_vstartup_lines[k] > v->v_startup_lines) {
1760 0 : if (v->required_prefetch_pix_data_bw > (v->read_bandwidth_plane_luma[k] + v->read_bandwidth_plane_chroma[k])) {
1761 0 : v->planes_with_room_to_increase_vstartup_prefetch_bw_less_than_active_bw = dcn_bw_no;
1762 : }
1763 0 : if (v->v_ratio_prefetch_y[k] > 4.0 || v->v_ratio_prefetch_c[k] > 4.0) {
1764 0 : v->planes_with_room_to_increase_vstartup_vratio_prefetch_more_than4 = dcn_bw_yes;
1765 : }
1766 0 : if (v->destination_lines_for_prefetch[k] < 2.0) {
1767 0 : v->planes_with_room_to_increase_vstartup_destination_line_times_for_prefetch_less_than2 = dcn_bw_yes;
1768 : }
1769 : }
1770 : }
1771 0 : if (v->max_rd_bandwidth <= v->return_bw && v->v_ratio_prefetch_more_than4 == dcn_bw_no && v->destination_line_times_for_prefetch_less_than2 == dcn_bw_no) {
1772 0 : v->prefetch_mode_supported = dcn_bw_yes;
1773 : }
1774 : else {
1775 0 : v->prefetch_mode_supported = dcn_bw_no;
1776 : }
1777 0 : v->v_startup_lines = v->v_startup_lines + 1.0;
1778 0 : } while (!(v->prefetch_mode_supported == dcn_bw_yes || (v->planes_with_room_to_increase_vstartup_prefetch_bw_less_than_active_bw == dcn_bw_yes && v->planes_with_room_to_increase_vstartup_vratio_prefetch_more_than4 == dcn_bw_no && v->planes_with_room_to_increase_vstartup_destination_line_times_for_prefetch_less_than2 == dcn_bw_no)));
1779 0 : v->next_prefetch_mode = v->next_prefetch_mode + 1.0;
1780 0 : } while (!(v->prefetch_mode_supported == dcn_bw_yes || v->prefetch_mode == 2.0));
1781 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1782 0 : if (v->v_ratio_prefetch_y[k] <= 1.0) {
1783 0 : v->display_pipe_line_delivery_time_luma_prefetch[k] = v->swath_width_y[k] * v->dpp_per_plane[k] / v->h_ratio[k] / v->pixel_clock[k];
1784 : }
1785 : else {
1786 0 : v->display_pipe_line_delivery_time_luma_prefetch[k] = v->swath_width_y[k] / v->pscl_throughput[k] / v->dppclk;
1787 : }
1788 0 : if (v->byte_per_pixel_detc[k] == 0.0) {
1789 0 : v->display_pipe_line_delivery_time_chroma_prefetch[k] = 0.0;
1790 : }
1791 : else {
1792 0 : if (v->v_ratio_prefetch_c[k] <= 1.0) {
1793 0 : v->display_pipe_line_delivery_time_chroma_prefetch[k] = v->swath_width_y[k] * v->dpp_per_plane[k] / v->h_ratio[k] / v->pixel_clock[k];
1794 : }
1795 : else {
1796 0 : v->display_pipe_line_delivery_time_chroma_prefetch[k] = v->swath_width_y[k] / v->pscl_throughput[k] / v->dppclk;
1797 : }
1798 : }
1799 : }
1800 : /*min ttuv_blank*/
1801 :
1802 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1803 0 : if (v->prefetch_mode == 0.0) {
1804 0 : v->allow_dram_clock_change_during_vblank[k] = dcn_bw_yes;
1805 0 : v->allow_dram_self_refresh_during_vblank[k] = dcn_bw_yes;
1806 0 : v->min_ttuv_blank[k] = v->t_calc +dcn_bw_max3(v->dram_clock_change_watermark, v->stutter_enter_plus_exit_watermark, v->urgent_watermark);
1807 : }
1808 0 : else if (v->prefetch_mode == 1.0) {
1809 0 : v->allow_dram_clock_change_during_vblank[k] = dcn_bw_no;
1810 0 : v->allow_dram_self_refresh_during_vblank[k] = dcn_bw_yes;
1811 0 : v->min_ttuv_blank[k] = v->t_calc +dcn_bw_max2(v->stutter_enter_plus_exit_watermark, v->urgent_watermark);
1812 : }
1813 : else {
1814 0 : v->allow_dram_clock_change_during_vblank[k] = dcn_bw_no;
1815 0 : v->allow_dram_self_refresh_during_vblank[k] = dcn_bw_no;
1816 0 : v->min_ttuv_blank[k] = v->t_calc + v->urgent_watermark;
1817 : }
1818 : }
1819 : /*nb p-state/dram clock change support*/
1820 :
1821 0 : v->active_dp_ps = 0.0;
1822 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1823 0 : v->active_dp_ps = v->active_dp_ps + v->dpp_per_plane[k];
1824 : }
1825 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1826 0 : v->lb_latency_hiding_source_lines_y =dcn_bw_min2(v->max_line_buffer_lines,dcn_bw_floor2(v->line_buffer_size / v->lb_bit_per_pixel[k] / (v->swath_width_y[k] /dcn_bw_max2(v->h_ratio[k], 1.0)), 1.0)) - (v->vtaps[k] - 1.0);
1827 0 : v->lb_latency_hiding_source_lines_c =dcn_bw_min2(v->max_line_buffer_lines,dcn_bw_floor2(v->line_buffer_size / v->lb_bit_per_pixel[k] / (v->swath_width_y[k] / 2.0 /dcn_bw_max2(v->h_ratio[k] / 2.0, 1.0)), 1.0)) - (v->vta_pschroma[k] - 1.0);
1828 0 : v->effective_lb_latency_hiding_y = v->lb_latency_hiding_source_lines_y / v->v_ratio[k] * (v->htotal[k] / v->pixel_clock[k]);
1829 0 : v->effective_lb_latency_hiding_c = v->lb_latency_hiding_source_lines_c / (v->v_ratio[k] / 2.0) * (v->htotal[k] / v->pixel_clock[k]);
1830 0 : if (v->swath_width_y[k] > 2.0 * v->dpp_output_buffer_pixels) {
1831 0 : v->dpp_output_buffer_lines_y = v->dpp_output_buffer_pixels / v->swath_width_y[k];
1832 : }
1833 0 : else if (v->swath_width_y[k] > v->dpp_output_buffer_pixels) {
1834 0 : v->dpp_output_buffer_lines_y = 0.5;
1835 : }
1836 : else {
1837 0 : v->dpp_output_buffer_lines_y = 1.0;
1838 : }
1839 0 : if (v->swath_width_y[k] / 2.0 > 2.0 * v->dpp_output_buffer_pixels) {
1840 0 : v->dpp_output_buffer_lines_c = v->dpp_output_buffer_pixels / (v->swath_width_y[k] / 2.0);
1841 : }
1842 0 : else if (v->swath_width_y[k] / 2.0 > v->dpp_output_buffer_pixels) {
1843 0 : v->dpp_output_buffer_lines_c = 0.5;
1844 : }
1845 : else {
1846 0 : v->dpp_output_buffer_lines_c = 1.0;
1847 : }
1848 0 : v->dppopp_buffering_y = (v->htotal[k] / v->pixel_clock[k]) * (v->dpp_output_buffer_lines_y + v->opp_output_buffer_lines);
1849 0 : v->max_det_buffering_time_y = v->full_det_buffering_time_y[k] + (v->lines_in_dety[k] - v->lines_in_dety_rounded_down_to_swath[k]) / v->swath_height_y[k] * (v->htotal[k] / v->pixel_clock[k]);
1850 0 : v->active_dram_clock_change_latency_margin_y = v->dppopp_buffering_y + v->effective_lb_latency_hiding_y + v->max_det_buffering_time_y - v->dram_clock_change_watermark;
1851 0 : if (v->active_dp_ps > 1.0) {
1852 0 : v->active_dram_clock_change_latency_margin_y = v->active_dram_clock_change_latency_margin_y - (1.0 - 1.0 / (v->active_dp_ps - 1.0)) * v->swath_height_y[k] * (v->htotal[k] / v->pixel_clock[k]);
1853 : }
1854 0 : if (v->byte_per_pixel_detc[k] > 0.0) {
1855 0 : v->dppopp_buffering_c = (v->htotal[k] / v->pixel_clock[k]) * (v->dpp_output_buffer_lines_c + v->opp_output_buffer_lines);
1856 0 : v->max_det_buffering_time_c = v->full_det_buffering_time_c[k] + (v->lines_in_detc[k] - v->lines_in_detc_rounded_down_to_swath[k]) / v->swath_height_c[k] * (v->htotal[k] / v->pixel_clock[k]);
1857 0 : v->active_dram_clock_change_latency_margin_c = v->dppopp_buffering_c + v->effective_lb_latency_hiding_c + v->max_det_buffering_time_c - v->dram_clock_change_watermark;
1858 0 : if (v->active_dp_ps > 1.0) {
1859 0 : v->active_dram_clock_change_latency_margin_c = v->active_dram_clock_change_latency_margin_c - (1.0 - 1.0 / (v->active_dp_ps - 1.0)) * v->swath_height_c[k] * (v->htotal[k] / v->pixel_clock[k]);
1860 : }
1861 0 : v->active_dram_clock_change_latency_margin[k] =dcn_bw_min2(v->active_dram_clock_change_latency_margin_y, v->active_dram_clock_change_latency_margin_c);
1862 : }
1863 : else {
1864 0 : v->active_dram_clock_change_latency_margin[k] = v->active_dram_clock_change_latency_margin_y;
1865 : }
1866 0 : if (v->output_format[k] == dcn_bw_444) {
1867 0 : v->writeback_dram_clock_change_latency_margin = (v->writeback_luma_buffer_size + v->writeback_chroma_buffer_size) * 1024.0 / (v->scaler_rec_out_width[k] / (v->htotal[k] / v->pixel_clock[k]) * 4.0) - v->writeback_dram_clock_change_watermark;
1868 : }
1869 : else {
1870 0 : v->writeback_dram_clock_change_latency_margin =dcn_bw_min2(v->writeback_luma_buffer_size, 2.0 * v->writeback_chroma_buffer_size) * 1024.0 / (v->scaler_rec_out_width[k] / (v->htotal[k] / v->pixel_clock[k])) - v->writeback_dram_clock_change_watermark;
1871 : }
1872 0 : if (v->output[k] == dcn_bw_writeback) {
1873 0 : v->active_dram_clock_change_latency_margin[k] =dcn_bw_min2(v->active_dram_clock_change_latency_margin[k], v->writeback_dram_clock_change_latency_margin);
1874 : }
1875 : }
1876 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1877 0 : if (v->allow_dram_clock_change_during_vblank[k] == dcn_bw_yes) {
1878 0 : v->v_blank_dram_clock_change_latency_margin[k] = (v->vtotal[k] - v->scaler_recout_height[k]) * (v->htotal[k] / v->pixel_clock[k]) -dcn_bw_max2(v->dram_clock_change_watermark, v->writeback_dram_clock_change_watermark);
1879 : }
1880 : else {
1881 0 : v->v_blank_dram_clock_change_latency_margin[k] = 0.0;
1882 : }
1883 : }
1884 0 : v->min_active_dram_clock_change_margin = 999999.0;
1885 0 : v->v_blank_of_min_active_dram_clock_change_margin = 999999.0;
1886 0 : v->second_min_active_dram_clock_change_margin = 999999.0;
1887 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1888 0 : if (v->active_dram_clock_change_latency_margin[k] < v->min_active_dram_clock_change_margin) {
1889 0 : v->second_min_active_dram_clock_change_margin = v->min_active_dram_clock_change_margin;
1890 0 : v->min_active_dram_clock_change_margin = v->active_dram_clock_change_latency_margin[k];
1891 0 : v->v_blank_of_min_active_dram_clock_change_margin = v->v_blank_dram_clock_change_latency_margin[k];
1892 : }
1893 0 : else if (v->active_dram_clock_change_latency_margin[k] < v->second_min_active_dram_clock_change_margin) {
1894 0 : v->second_min_active_dram_clock_change_margin = v->active_dram_clock_change_latency_margin[k];
1895 : }
1896 : }
1897 0 : v->min_vblank_dram_clock_change_margin = 999999.0;
1898 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1899 0 : if (v->min_vblank_dram_clock_change_margin > v->v_blank_dram_clock_change_latency_margin[k]) {
1900 0 : v->min_vblank_dram_clock_change_margin = v->v_blank_dram_clock_change_latency_margin[k];
1901 : }
1902 : }
1903 0 : if (v->synchronized_vblank == dcn_bw_yes || v->number_of_active_planes == 1) {
1904 0 : v->dram_clock_change_margin =dcn_bw_max2(v->min_active_dram_clock_change_margin, v->min_vblank_dram_clock_change_margin);
1905 : }
1906 0 : else if (v->v_blank_of_min_active_dram_clock_change_margin > v->min_active_dram_clock_change_margin) {
1907 0 : v->dram_clock_change_margin =dcn_bw_min2(v->second_min_active_dram_clock_change_margin, v->v_blank_of_min_active_dram_clock_change_margin);
1908 : }
1909 : else {
1910 0 : v->dram_clock_change_margin = v->min_active_dram_clock_change_margin;
1911 : }
1912 0 : if (v->min_active_dram_clock_change_margin > 0.0) {
1913 0 : v->dram_clock_change_support = dcn_bw_supported_in_v_active;
1914 : }
1915 0 : else if (v->dram_clock_change_margin > 0.0) {
1916 0 : v->dram_clock_change_support = dcn_bw_supported_in_v_blank;
1917 : }
1918 : else {
1919 0 : v->dram_clock_change_support = dcn_bw_not_supported;
1920 : }
1921 : /*maximum bandwidth used*/
1922 :
1923 0 : v->wr_bandwidth = 0.0;
1924 0 : for (k = 0; k <= v->number_of_active_planes - 1; k++) {
1925 0 : if (v->output[k] == dcn_bw_writeback && v->output_format[k] == dcn_bw_444) {
1926 0 : v->wr_bandwidth = v->wr_bandwidth + v->scaler_rec_out_width[k] / (v->htotal[k] / v->pixel_clock[k]) * 4.0;
1927 : }
1928 0 : else if (v->output[k] == dcn_bw_writeback) {
1929 0 : v->wr_bandwidth = v->wr_bandwidth + v->scaler_rec_out_width[k] / (v->htotal[k] / v->pixel_clock[k]) * 1.5;
1930 : }
1931 : }
1932 0 : v->max_used_bw = v->max_rd_bandwidth + v->wr_bandwidth;
1933 0 : }
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