drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_trace.c

   1 /*
   2  * Copyright 2022 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 #include "link_dp_trace.h"
  26 #include "link/protocols/link_dpcd.h"
  27
  28 void dp_trace_init(struct dc_link *link)
  29 {
  30         memset(&link->dp_trace, 0, sizeof(link->dp_trace));
  31         link->dp_trace.is_initialized = true;
  32 }
  33
  34 void dp_trace_reset(struct dc_link *link)
  35 {
  36         memset(&link->dp_trace, 0, sizeof(link->dp_trace));
  37 }
  38
  39 bool dc_dp_trace_is_initialized(struct dc_link *link)
  40 {
  41         return link->dp_trace.is_initialized;
  42 }
  43
  44 void dp_trace_detect_lt_init(struct dc_link *link)
  45 {
  46         memset(&link->dp_trace.detect_lt_trace, 0, sizeof(link->dp_trace.detect_lt_trace));
  47 }
  48
  49 void dp_trace_commit_lt_init(struct dc_link *link)
  50 {
  51         memset(&link->dp_trace.commit_lt_trace, 0, sizeof(link->dp_trace.commit_lt_trace));
  52 }
  53
  54 void dp_trace_link_loss_increment(struct dc_link *link)
  55 {
  56         link->dp_trace.link_loss_count++;
  57 }
  58
  59 void dp_trace_lt_fail_count_update(struct dc_link *link,
  60                 unsigned int fail_count,
  61                 bool in_detection)
  62 {
  63         if (in_detection)
  64                 link->dp_trace.detect_lt_trace.counts.fail = fail_count;
  65         else
  66                 link->dp_trace.commit_lt_trace.counts.fail = fail_count;
  67 }
  68
  69 void dp_trace_lt_total_count_increment(struct dc_link *link,
  70                 bool in_detection)
  71 {
  72         if (in_detection)
  73                 link->dp_trace.detect_lt_trace.counts.total++;
  74         else
  75                 link->dp_trace.commit_lt_trace.counts.total++;
  76 }
  77
  78 void dc_dp_trace_set_is_logged_flag(struct dc_link *link,
  79                 bool in_detection,
  80                 bool is_logged)
  81 {
  82         if (in_detection)
  83                 link->dp_trace.detect_lt_trace.is_logged = is_logged;
  84         else
  85                 link->dp_trace.commit_lt_trace.is_logged = is_logged;
  86 }
  87
  88 bool dc_dp_trace_is_logged(struct dc_link *link,
  89                 bool in_detection)
  90 {
  91         if (in_detection)
  92                 return link->dp_trace.detect_lt_trace.is_logged;
  93         else
  94                 return link->dp_trace.commit_lt_trace.is_logged;
  95 }
  96
  97 void dp_trace_lt_result_update(struct dc_link *link,
  98                 enum link_training_result result,
  99                 bool in_detection)
 100 {
 101         if (in_detection)
 102                 link->dp_trace.detect_lt_trace.result = result;
 103         else
 104                 link->dp_trace.commit_lt_trace.result = result;
 105 }
 106
 107 void dp_trace_set_lt_start_timestamp(struct dc_link *link,
 108                 bool in_detection)
 109 {
 110         if (in_detection)
 111                 link->dp_trace.detect_lt_trace.timestamps.start = dm_get_timestamp(link->dc->ctx);
 112         else
 113                 link->dp_trace.commit_lt_trace.timestamps.start = dm_get_timestamp(link->dc->ctx);
 114 }
 115
 116 void dp_trace_set_lt_end_timestamp(struct dc_link *link,
 117                 bool in_detection)
 118 {
 119         if (in_detection)
 120                 link->dp_trace.detect_lt_trace.timestamps.end = dm_get_timestamp(link->dc->ctx);
 121         else
 122                 link->dp_trace.commit_lt_trace.timestamps.end = dm_get_timestamp(link->dc->ctx);
 123 }
 124
 125 unsigned long long dc_dp_trace_get_lt_end_timestamp(struct dc_link *link,
 126                 bool in_detection)
 127 {
 128         if (in_detection)
 129                 return link->dp_trace.detect_lt_trace.timestamps.end;
 130         else
 131                 return link->dp_trace.commit_lt_trace.timestamps.end;
 132 }
 133
 134 struct dp_trace_lt_counts *dc_dp_trace_get_lt_counts(struct dc_link *link,
 135                 bool in_detection)
 136 {
 137         if (in_detection)
 138                 return &link->dp_trace.detect_lt_trace.counts;
 139         else
 140                 return &link->dp_trace.commit_lt_trace.counts;
 141 }
 142
 143 unsigned int dc_dp_trace_get_link_loss_count(struct dc_link *link)
 144 {
 145         return link->dp_trace.link_loss_count;
 146 }
 147
 148 void link_dp_trace_set_edp_power_timestamp(struct dc_link *link,
 149                 bool power_up)
 150 {
 151         if (!power_up)
 152                 /*save driver power off time stamp*/
 153                 link->dp_trace.edp_trace_power_timestamps.poweroff = dm_get_timestamp(link->dc->ctx);
 154         else
 155                 link->dp_trace.edp_trace_power_timestamps.poweron = dm_get_timestamp(link->dc->ctx);
 156 }
 157
 158 uint64_t link_dp_trace_get_edp_poweron_timestamp(struct dc_link *link)
 159 {
 160         return link->dp_trace.edp_trace_power_timestamps.poweron;
 161 }
 162
 163 uint64_t link_dp_trace_get_edp_poweroff_timestamp(struct dc_link *link)
 164 {
 165         return link->dp_trace.edp_trace_power_timestamps.poweroff;
 166 }
 167
 168 void link_dp_source_sequence_trace(struct dc_link *link, uint8_t dp_test_mode)
 169 {
 170         if (link != NULL && link->dc->debug.enable_driver_sequence_debug)
 171                 core_link_write_dpcd(link, DP_SOURCE_SEQUENCE,
 172                                         &dp_test_mode, sizeof(dp_test_mode));
 173 }