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 #include "link.h"
28 
dp_trace_init(struct dc_link * link)29 void dp_trace_init(struct dc_link *link)
30 {
31 	memset(&link->dp_trace, 0, sizeof(link->dp_trace));
32 	link->dp_trace.is_initialized = true;
33 }
34 
dp_trace_reset(struct dc_link * link)35 void dp_trace_reset(struct dc_link *link)
36 {
37 	memset(&link->dp_trace, 0, sizeof(link->dp_trace));
38 }
39 
dp_trace_is_initialized(struct dc_link * link)40 bool dp_trace_is_initialized(struct dc_link *link)
41 {
42 	return link->dp_trace.is_initialized;
43 }
44 
dp_trace_detect_lt_init(struct dc_link * link)45 void dp_trace_detect_lt_init(struct dc_link *link)
46 {
47 	memset(&link->dp_trace.detect_lt_trace, 0, sizeof(link->dp_trace.detect_lt_trace));
48 }
49 
dp_trace_commit_lt_init(struct dc_link * link)50 void dp_trace_commit_lt_init(struct dc_link *link)
51 {
52 	memset(&link->dp_trace.commit_lt_trace, 0, sizeof(link->dp_trace.commit_lt_trace));
53 }
54 
dp_trace_link_loss_increment(struct dc_link * link)55 void dp_trace_link_loss_increment(struct dc_link *link)
56 {
57 	link->dp_trace.link_loss_count++;
58 }
59 
dp_trace_lt_fail_count_update(struct dc_link * link,unsigned int fail_count,bool in_detection)60 void dp_trace_lt_fail_count_update(struct dc_link *link,
61 		unsigned int fail_count,
62 		bool in_detection)
63 {
64 	if (in_detection)
65 		link->dp_trace.detect_lt_trace.counts.fail = fail_count;
66 	else
67 		link->dp_trace.commit_lt_trace.counts.fail = fail_count;
68 }
69 
dp_trace_lt_total_count_increment(struct dc_link * link,bool in_detection)70 void dp_trace_lt_total_count_increment(struct dc_link *link,
71 		bool in_detection)
72 {
73 	if (in_detection)
74 		link->dp_trace.detect_lt_trace.counts.total++;
75 	else
76 		link->dp_trace.commit_lt_trace.counts.total++;
77 }
78 
dp_trace_set_is_logged_flag(struct dc_link * link,bool in_detection,bool is_logged)79 void dp_trace_set_is_logged_flag(struct dc_link *link,
80 		bool in_detection,
81 		bool is_logged)
82 {
83 	if (in_detection)
84 		link->dp_trace.detect_lt_trace.is_logged = is_logged;
85 	else
86 		link->dp_trace.commit_lt_trace.is_logged = is_logged;
87 }
88 
dp_trace_is_logged(struct dc_link * link,bool in_detection)89 bool dp_trace_is_logged(struct dc_link *link, 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 
dp_trace_lt_result_update(struct dc_link * link,enum link_training_result result,bool in_detection)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 
dp_trace_set_lt_start_timestamp(struct dc_link * link,bool in_detection)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 
dp_trace_set_lt_end_timestamp(struct dc_link * link,bool in_detection)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 
dp_trace_get_lt_end_timestamp(struct dc_link * link,bool in_detection)125 unsigned long long 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 
dp_trace_get_lt_counts(struct dc_link * link,bool in_detection)134 const struct dp_trace_lt_counts *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 
dp_trace_get_link_loss_count(struct dc_link * link)143 unsigned int dp_trace_get_link_loss_count(struct dc_link *link)
144 {
145 	return link->dp_trace.link_loss_count;
146 }
147 
dp_trace_set_edp_power_timestamp(struct dc_link * link,bool power_up)148 void 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 
dp_trace_get_edp_poweron_timestamp(struct dc_link * link)158 uint64_t dp_trace_get_edp_poweron_timestamp(struct dc_link *link)
159 {
160 	return link->dp_trace.edp_trace_power_timestamps.poweron;
161 }
162 
dp_trace_get_edp_poweroff_timestamp(struct dc_link * link)163 uint64_t dp_trace_get_edp_poweroff_timestamp(struct dc_link *link)
164 {
165 	return link->dp_trace.edp_trace_power_timestamps.poweroff;
166 }
167 
dp_trace_source_sequence(struct dc_link * link,uint8_t dp_test_mode)168 void dp_trace_source_sequence(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 }
174