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 "display_mode_lib.h"
27#include "dc_features.h"
28#include "dcn20/display_mode_vba_20.h"
29#include "dcn20/display_rq_dlg_calc_20.h"
30#include "dcn20/display_mode_vba_20v2.h"
31#include "dcn20/display_rq_dlg_calc_20v2.h"
32#include "dcn21/display_mode_vba_21.h"
33#include "dcn21/display_rq_dlg_calc_21.h"
34#include "dcn30/display_mode_vba_30.h"
35#include "dcn30/display_rq_dlg_calc_30.h"
36#include "dcn31/display_mode_vba_31.h"
37#include "dcn31/display_rq_dlg_calc_31.h"
38#include "dcn314/display_mode_vba_314.h"
39#include "dcn314/display_rq_dlg_calc_314.h"
40#include "dcn32/display_mode_vba_32.h"
41#include "dcn32/display_rq_dlg_calc_32.h"
42#include "dml_logger.h"
43
44static const struct dml_funcs dml20_funcs = {
45 .validate = dml20_ModeSupportAndSystemConfigurationFull,
46 .recalculate = dml20_recalculate,
47 .rq_dlg_get_dlg_reg = dml20_rq_dlg_get_dlg_reg,
48 .rq_dlg_get_rq_reg = dml20_rq_dlg_get_rq_reg
49};
50
51static const struct dml_funcs dml20v2_funcs = {
52 .validate = dml20v2_ModeSupportAndSystemConfigurationFull,
53 .recalculate = dml20v2_recalculate,
54 .rq_dlg_get_dlg_reg = dml20v2_rq_dlg_get_dlg_reg,
55 .rq_dlg_get_rq_reg = dml20v2_rq_dlg_get_rq_reg
56};
57
58static const struct dml_funcs dml21_funcs = {
59 .validate = dml21_ModeSupportAndSystemConfigurationFull,
60 .recalculate = dml21_recalculate,
61 .rq_dlg_get_dlg_reg = dml21_rq_dlg_get_dlg_reg,
62 .rq_dlg_get_rq_reg = dml21_rq_dlg_get_rq_reg
63};
64
65static const struct dml_funcs dml30_funcs = {
66 .validate = dml30_ModeSupportAndSystemConfigurationFull,
67 .recalculate = dml30_recalculate,
68 .rq_dlg_get_dlg_reg = dml30_rq_dlg_get_dlg_reg,
69 .rq_dlg_get_rq_reg = dml30_rq_dlg_get_rq_reg
70};
71
72static const struct dml_funcs dml31_funcs = {
73 .validate = dml31_ModeSupportAndSystemConfigurationFull,
74 .recalculate = dml31_recalculate,
75 .rq_dlg_get_dlg_reg = dml31_rq_dlg_get_dlg_reg,
76 .rq_dlg_get_rq_reg = dml31_rq_dlg_get_rq_reg
77};
78
79static const struct dml_funcs dml314_funcs = {
80 .validate = dml314_ModeSupportAndSystemConfigurationFull,
81 .recalculate = dml314_recalculate,
82 .rq_dlg_get_dlg_reg = dml314_rq_dlg_get_dlg_reg,
83 .rq_dlg_get_rq_reg = dml314_rq_dlg_get_rq_reg
84};
85
86static const struct dml_funcs dml32_funcs = {
87 .validate = dml32_ModeSupportAndSystemConfigurationFull,
88 .recalculate = dml32_recalculate,
89 .rq_dlg_get_dlg_reg_v2 = dml32_rq_dlg_get_dlg_reg,
90 .rq_dlg_get_rq_reg_v2 = dml32_rq_dlg_get_rq_reg
91};
92
93void dml_init_instance(struct display_mode_lib *lib,
94 const struct _vcs_dpi_soc_bounding_box_st *soc_bb,
95 const struct _vcs_dpi_ip_params_st *ip_params,
96 enum dml_project project)
97{
98 lib->soc = *soc_bb;
99 lib->ip = *ip_params;
100 lib->project = project;
101 switch (project) {
102 case DML_PROJECT_NAVI10:
103 case DML_PROJECT_DCN201:
104 lib->funcs = dml20_funcs;
105 break;
106 case DML_PROJECT_NAVI10v2:
107 lib->funcs = dml20v2_funcs;
108 break;
109 case DML_PROJECT_DCN21:
110 lib->funcs = dml21_funcs;
111 break;
112 case DML_PROJECT_DCN30:
113 lib->funcs = dml30_funcs;
114 break;
115 case DML_PROJECT_DCN31:
116 case DML_PROJECT_DCN315:
117 lib->funcs = dml31_funcs;
118 break;
119 case DML_PROJECT_DCN314:
120 lib->funcs = dml314_funcs;
121 break;
122 case DML_PROJECT_DCN32:
123 lib->funcs = dml32_funcs;
124 break;
125
126 default:
127 break;
128 }
129}
130
131const char *dml_get_status_message(enum dm_validation_status status)
132{
133 switch (status) {
134 case DML_VALIDATION_OK: return "Validation OK";
135 case DML_FAIL_SCALE_RATIO_TAP: return "Scale ratio/tap";
136 case DML_FAIL_SOURCE_PIXEL_FORMAT: return "Source pixel format";
137 case DML_FAIL_VIEWPORT_SIZE: return "Viewport size";
138 case DML_FAIL_TOTAL_V_ACTIVE_BW: return "Total vertical active bandwidth";
139 case DML_FAIL_DIO_SUPPORT: return "DIO support";
140 case DML_FAIL_NOT_ENOUGH_DSC: return "Not enough DSC Units";
141 case DML_FAIL_DSC_CLK_REQUIRED: return "DSC clock required";
142 case DML_FAIL_URGENT_LATENCY: return "Urgent latency";
143 case DML_FAIL_REORDERING_BUFFER: return "Re-ordering buffer";
144 case DML_FAIL_DISPCLK_DPPCLK: return "Dispclk and Dppclk";
145 case DML_FAIL_TOTAL_AVAILABLE_PIPES: return "Total available pipes";
146 case DML_FAIL_NUM_OTG: return "Number of OTG";
147 case DML_FAIL_WRITEBACK_MODE: return "Writeback mode";
148 case DML_FAIL_WRITEBACK_LATENCY: return "Writeback latency";
149 case DML_FAIL_WRITEBACK_SCALE_RATIO_TAP: return "Writeback scale ratio/tap";
150 case DML_FAIL_CURSOR_SUPPORT: return "Cursor support";
151 case DML_FAIL_PITCH_SUPPORT: return "Pitch support";
152 case DML_FAIL_PTE_BUFFER_SIZE: return "PTE buffer size";
153 case DML_FAIL_DSC_INPUT_BPC: return "DSC input bpc";
154 case DML_FAIL_PREFETCH_SUPPORT: return "Prefetch support";
155 case DML_FAIL_V_RATIO_PREFETCH: return "Vertical ratio prefetch";
156 default: return "Unknown Status";
157 }
158}
159
160void dml_log_pipe_params(
161 struct display_mode_lib *mode_lib,
162 display_e2e_pipe_params_st *pipes,
163 int pipe_cnt)
164{
165 display_pipe_source_params_st *pipe_src;
166 display_pipe_dest_params_st *pipe_dest;
167 scaler_ratio_depth_st *scale_ratio_depth;
168 scaler_taps_st *scale_taps;
169 display_output_params_st *dout;
170 display_clocks_and_cfg_st *clks_cfg;
171 int i;
172
173 for (i = 0; i < pipe_cnt; i++) {
174 pipe_src = &(pipes[i].pipe.src);
175 pipe_dest = &(pipes[i].pipe.dest);
176 scale_ratio_depth = &(pipes[i].pipe.scale_ratio_depth);
177 scale_taps = &(pipes[i].pipe.scale_taps);
178 dout = &(pipes[i].dout);
179 clks_cfg = &(pipes[i].clks_cfg);
180
181 dml_print("DML PARAMS: =====================================\n");
182 dml_print("DML PARAMS: PIPE [%d] SOURCE PARAMS:\n", i);
183 dml_print("DML PARAMS: source_format = %d\n", pipe_src->source_format);
184 dml_print("DML PARAMS: dcc = %d\n", pipe_src->dcc);
185 dml_print("DML PARAMS: dcc_rate = %d\n", pipe_src->dcc_rate);
186 dml_print("DML PARAMS: dcc_use_global = %d\n", pipe_src->dcc_use_global);
187 dml_print("DML PARAMS: vm = %d\n", pipe_src->vm);
188 dml_print("DML PARAMS: gpuvm = %d\n", pipe_src->gpuvm);
189 dml_print("DML PARAMS: hostvm = %d\n", pipe_src->hostvm);
190 dml_print("DML PARAMS: gpuvm_levels_force_en = %d\n", pipe_src->gpuvm_levels_force_en);
191 dml_print("DML PARAMS: gpuvm_levels_force = %d\n", pipe_src->gpuvm_levels_force);
192 dml_print("DML PARAMS: source_scan = %d\n", pipe_src->source_scan);
193 dml_print("DML PARAMS: sw_mode = %d\n", pipe_src->sw_mode);
194 dml_print("DML PARAMS: macro_tile_size = %d\n", pipe_src->macro_tile_size);
195 dml_print("DML PARAMS: viewport_width = %d\n", pipe_src->viewport_width);
196 dml_print("DML PARAMS: viewport_height = %d\n", pipe_src->viewport_height);
197 dml_print("DML PARAMS: viewport_y_y = %d\n", pipe_src->viewport_y_y);
198 dml_print("DML PARAMS: viewport_y_c = %d\n", pipe_src->viewport_y_c);
199 dml_print("DML PARAMS: viewport_width_c = %d\n", pipe_src->viewport_width_c);
200 dml_print("DML PARAMS: viewport_height_c = %d\n", pipe_src->viewport_height_c);
201 dml_print("DML PARAMS: data_pitch = %d\n", pipe_src->data_pitch);
202 dml_print("DML PARAMS: data_pitch_c = %d\n", pipe_src->data_pitch_c);
203 dml_print("DML PARAMS: meta_pitch = %d\n", pipe_src->meta_pitch);
204 dml_print("DML PARAMS: meta_pitch_c = %d\n", pipe_src->meta_pitch_c);
205 dml_print("DML PARAMS: cur0_src_width = %d\n", pipe_src->cur0_src_width);
206 dml_print("DML PARAMS: cur0_bpp = %d\n", pipe_src->cur0_bpp);
207 dml_print("DML PARAMS: cur1_src_width = %d\n", pipe_src->cur1_src_width);
208 dml_print("DML PARAMS: cur1_bpp = %d\n", pipe_src->cur1_bpp);
209 dml_print("DML PARAMS: num_cursors = %d\n", pipe_src->num_cursors);
210 dml_print("DML PARAMS: is_hsplit = %d\n", pipe_src->is_hsplit);
211 dml_print("DML PARAMS: hsplit_grp = %d\n", pipe_src->hsplit_grp);
212 dml_print("DML PARAMS: dynamic_metadata_enable = %d\n", pipe_src->dynamic_metadata_enable);
213 dml_print("DML PARAMS: dmdata_lines_before_active = %d\n", pipe_src->dynamic_metadata_lines_before_active);
214 dml_print("DML PARAMS: dmdata_xmit_bytes = %d\n", pipe_src->dynamic_metadata_xmit_bytes);
215 dml_print("DML PARAMS: immediate_flip = %d\n", pipe_src->immediate_flip);
216 dml_print("DML PARAMS: v_total_min = %d\n", pipe_src->v_total_min);
217 dml_print("DML PARAMS: v_total_max = %d\n", pipe_src->v_total_max);
218 dml_print("DML PARAMS: =====================================\n");
219
220 dml_print("DML PARAMS: PIPE [%d] DESTINATION PARAMS:\n", i);
221 dml_print("DML PARAMS: recout_width = %d\n", pipe_dest->recout_width);
222 dml_print("DML PARAMS: recout_height = %d\n", pipe_dest->recout_height);
223 dml_print("DML PARAMS: full_recout_width = %d\n", pipe_dest->full_recout_width);
224 dml_print("DML PARAMS: full_recout_height = %d\n", pipe_dest->full_recout_height);
225 dml_print("DML PARAMS: hblank_start = %d\n", pipe_dest->hblank_start);
226 dml_print("DML PARAMS: hblank_end = %d\n", pipe_dest->hblank_end);
227 dml_print("DML PARAMS: vblank_start = %d\n", pipe_dest->vblank_start);
228 dml_print("DML PARAMS: vblank_end = %d\n", pipe_dest->vblank_end);
229 dml_print("DML PARAMS: htotal = %d\n", pipe_dest->htotal);
230 dml_print("DML PARAMS: vtotal = %d\n", pipe_dest->vtotal);
231 dml_print("DML PARAMS: vactive = %d\n", pipe_dest->vactive);
232 dml_print("DML PARAMS: hactive = %d\n", pipe_dest->hactive);
233 dml_print("DML PARAMS: vstartup_start = %d\n", pipe_dest->vstartup_start);
234 dml_print("DML PARAMS: vupdate_offset = %d\n", pipe_dest->vupdate_offset);
235 dml_print("DML PARAMS: vupdate_width = %d\n", pipe_dest->vupdate_width);
236 dml_print("DML PARAMS: vready_offset = %d\n", pipe_dest->vready_offset);
237 dml_print("DML PARAMS: interlaced = %d\n", pipe_dest->interlaced);
238 dml_print("DML PARAMS: pixel_rate_mhz = %3.2f\n", pipe_dest->pixel_rate_mhz);
239 dml_print("DML PARAMS: sync_vblank_all_planes = %d\n", pipe_dest->synchronized_vblank_all_planes);
240 dml_print("DML PARAMS: otg_inst = %d\n", pipe_dest->otg_inst);
241 dml_print("DML PARAMS: odm_combine = %d\n", pipe_dest->odm_combine);
242 dml_print("DML PARAMS: use_maximum_vstartup = %d\n", pipe_dest->use_maximum_vstartup);
243 dml_print("DML PARAMS: vtotal_max = %d\n", pipe_dest->vtotal_max);
244 dml_print("DML PARAMS: vtotal_min = %d\n", pipe_dest->vtotal_min);
245 dml_print("DML PARAMS: =====================================\n");
246
247 dml_print("DML PARAMS: PIPE [%d] SCALER PARAMS:\n", i);
248 dml_print("DML PARAMS: hscl_ratio = %3.4f\n", scale_ratio_depth->hscl_ratio);
249 dml_print("DML PARAMS: vscl_ratio = %3.4f\n", scale_ratio_depth->vscl_ratio);
250 dml_print("DML PARAMS: hscl_ratio_c = %3.4f\n", scale_ratio_depth->hscl_ratio_c);
251 dml_print("DML PARAMS: vscl_ratio_c = %3.4f\n", scale_ratio_depth->vscl_ratio_c);
252 dml_print("DML PARAMS: vinit = %3.4f\n", scale_ratio_depth->vinit);
253 dml_print("DML PARAMS: vinit_c = %3.4f\n", scale_ratio_depth->vinit_c);
254 dml_print("DML PARAMS: vinit_bot = %3.4f\n", scale_ratio_depth->vinit_bot);
255 dml_print("DML PARAMS: vinit_bot_c = %3.4f\n", scale_ratio_depth->vinit_bot_c);
256 dml_print("DML PARAMS: lb_depth = %d\n", scale_ratio_depth->lb_depth);
257 dml_print("DML PARAMS: scl_enable = %d\n", scale_ratio_depth->scl_enable);
258 dml_print("DML PARAMS: htaps = %d\n", scale_taps->htaps);
259 dml_print("DML PARAMS: vtaps = %d\n", scale_taps->vtaps);
260 dml_print("DML PARAMS: htaps_c = %d\n", scale_taps->htaps_c);
261 dml_print("DML PARAMS: vtaps_c = %d\n", scale_taps->vtaps_c);
262 dml_print("DML PARAMS: =====================================\n");
263
264 dml_print("DML PARAMS: PIPE [%d] DISPLAY OUTPUT PARAMS:\n", i);
265 dml_print("DML PARAMS: output_type = %d\n", dout->output_type);
266 dml_print("DML PARAMS: output_format = %d\n", dout->output_format);
267 dml_print("DML PARAMS: dsc_input_bpc = %d\n", dout->dsc_input_bpc);
268 dml_print("DML PARAMS: output_bpp = %3.4f\n", dout->output_bpp);
269 dml_print("DML PARAMS: dp_lanes = %d\n", dout->dp_lanes);
270 dml_print("DML PARAMS: dsc_enable = %d\n", dout->dsc_enable);
271 dml_print("DML PARAMS: dsc_slices = %d\n", dout->dsc_slices);
272 dml_print("DML PARAMS: wb_enable = %d\n", dout->wb_enable);
273 dml_print("DML PARAMS: num_active_wb = %d\n", dout->num_active_wb);
274 dml_print("DML PARAMS: =====================================\n");
275
276 dml_print("DML PARAMS: PIPE [%d] CLOCK CONFIG PARAMS:\n", i);
277 dml_print("DML PARAMS: voltage = %d\n", clks_cfg->voltage);
278 dml_print("DML PARAMS: dppclk_mhz = %3.2f\n", clks_cfg->dppclk_mhz);
279 dml_print("DML PARAMS: refclk_mhz = %3.2f\n", clks_cfg->refclk_mhz);
280 dml_print("DML PARAMS: dispclk_mhz = %3.2f\n", clks_cfg->dispclk_mhz);
281 dml_print("DML PARAMS: dcfclk_mhz = %3.2f\n", clks_cfg->dcfclk_mhz);
282 dml_print("DML PARAMS: socclk_mhz = %3.2f\n", clks_cfg->socclk_mhz);
283 dml_print("DML PARAMS: =====================================\n");
284 }
285}
286
287void dml_log_mode_support_params(struct display_mode_lib *mode_lib)
288{
289 int i;
290
291 for (i = mode_lib->vba.soc.num_states; i >= 0; i--) {
292 dml_print("DML SUPPORT: ===============================================\n");
293 dml_print("DML SUPPORT: Voltage State %d\n", i);
294 dml_print("DML SUPPORT: Mode Supported : %s\n", mode_lib->vba.ModeSupport[i][0] ? "Supported" : "NOT Supported");
295 dml_print("DML SUPPORT: Mode Supported (pipe split) : %s\n", mode_lib->vba.ModeSupport[i][1] ? "Supported" : "NOT Supported");
296 dml_print("DML SUPPORT: Scale Ratio And Taps : %s\n", mode_lib->vba.ScaleRatioAndTapsSupport ? "Supported" : "NOT Supported");
297 dml_print("DML SUPPORT: Source Format Pixel And Scan : %s\n", mode_lib->vba.SourceFormatPixelAndScanSupport ? "Supported" : "NOT Supported");
298 dml_print("DML SUPPORT: Viewport Size : [%s, %s]\n", mode_lib->vba.ViewportSizeSupport[i][0] ? "Supported" : "NOT Supported", mode_lib->vba.ViewportSizeSupport[i][1] ? "Supported" : "NOT Supported");
299 dml_print("DML SUPPORT: DIO Support : %s\n", mode_lib->vba.DIOSupport[i] ? "Supported" : "NOT Supported");
300 dml_print("DML SUPPORT: ODM Combine 4To1 Support Check : %s\n", mode_lib->vba.ODMCombine4To1SupportCheckOK[i] ? "Supported" : "NOT Supported");
301 dml_print("DML SUPPORT: DSC Units : %s\n", mode_lib->vba.NotEnoughDSCUnits[i] ? "Not Supported" : "Supported");
302 dml_print("DML SUPPORT: DSCCLK Required : %s\n", mode_lib->vba.DSCCLKRequiredMoreThanSupported[i] ? "Not Supported" : "Supported");
303 dml_print("DML SUPPORT: DTBCLK Required : %s\n", mode_lib->vba.DTBCLKRequiredMoreThanSupported[i] ? "Not Supported" : "Supported");
304 dml_print("DML SUPPORT: Re-ordering Buffer : [%s, %s]\n", mode_lib->vba.ROBSupport[i][0] ? "Supported" : "NOT Supported", mode_lib->vba.ROBSupport[i][1] ? "Supported" : "NOT Supported");
305 dml_print("DML SUPPORT: DISPCLK and DPPCLK : [%s, %s]\n", mode_lib->vba.DISPCLK_DPPCLK_Support[i][0] ? "Supported" : "NOT Supported", mode_lib->vba.DISPCLK_DPPCLK_Support[i][1] ? "Supported" : "NOT Supported");
306 dml_print("DML SUPPORT: Total Available Pipes : [%s, %s]\n", mode_lib->vba.TotalAvailablePipesSupport[i][0] ? "Supported" : "NOT Supported", mode_lib->vba.TotalAvailablePipesSupport[i][1] ? "Supported" : "NOT Supported");
307 dml_print("DML SUPPORT: Writeback Latency : %s\n", mode_lib->vba.WritebackLatencySupport ? "Supported" : "NOT Supported");
308 dml_print("DML SUPPORT: Writeback Scale Ratio And Taps : %s\n", mode_lib->vba.WritebackScaleRatioAndTapsSupport ? "Supported" : "NOT Supported");
309 dml_print("DML SUPPORT: Cursor : %s\n", mode_lib->vba.CursorSupport ? "Supported" : "NOT Supported");
310 dml_print("DML SUPPORT: Pitch : %s\n", mode_lib->vba.PitchSupport ? "Supported" : "NOT Supported");
311 dml_print("DML SUPPORT: Prefetch : [%s, %s]\n", mode_lib->vba.PrefetchSupported[i][0] ? "Supported" : "NOT Supported", mode_lib->vba.PrefetchSupported[i][1] ? "Supported" : "NOT Supported");
312 dml_print("DML SUPPORT: Dynamic Metadata : [%s, %s]\n", mode_lib->vba.DynamicMetadataSupported[i][0] ? "Supported" : "NOT Supported", mode_lib->vba.DynamicMetadataSupported[i][1] ? "Supported" : "NOT Supported");
313 dml_print("DML SUPPORT: Total Vertical Active Bandwidth : [%s, %s]\n", mode_lib->vba.TotalVerticalActiveBandwidthSupport[i][0] ? "Supported" : "NOT Supported", mode_lib->vba.TotalVerticalActiveBandwidthSupport[i][1] ? "Supported" : "NOT Supported");
314 dml_print("DML SUPPORT: VRatio In Prefetch : [%s, %s]\n", mode_lib->vba.VRatioInPrefetchSupported[i][0] ? "Supported" : "NOT Supported", mode_lib->vba.VRatioInPrefetchSupported[i][1] ? "Supported" : "NOT Supported");
315 dml_print("DML SUPPORT: PTE Buffer Size Not Exceeded : [%s, %s]\n", mode_lib->vba.PTEBufferSizeNotExceeded[i][0] ? "Supported" : "NOT Supported", mode_lib->vba.PTEBufferSizeNotExceeded[i][1] ? "Supported" : "NOT Supported");
316 dml_print("DML SUPPORT: DSC Input BPC : %s\n", mode_lib->vba.NonsupportedDSCInputBPC ? "Not Supported" : "Supported");
317 dml_print("DML SUPPORT: HostVMEnable : %d\n", mode_lib->vba.HostVMEnable);
318 dml_print("DML SUPPORT: ImmediateFlipSupportedForState : [%d, %d]\n", mode_lib->vba.ImmediateFlipSupportedForState[i][0], mode_lib->vba.ImmediateFlipSupportedForState[i][1]);
319 }
320}
321

source code of linux/drivers/gpu/drm/amd/display/dc/dml/display_mode_lib.c