1 /*
2 * Copyright 2023 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 "amdgpu_dm_replay.h"
27 #include "dc_dmub_srv.h"
28 #include "dc.h"
29 #include "dm_helpers.h"
30 #include "amdgpu_dm.h"
31 #include "modules/power/power_helpers.h"
32 #include "dmub/inc/dmub_cmd.h"
33 #include "dc/inc/link.h"
34
35 /*
36 * amdgpu_dm_link_supports_replay() - check if the link supports replay
37 * @link: link
38 * @aconnector: aconnector
39 *
40 */
amdgpu_dm_link_supports_replay(struct dc_link * link,struct amdgpu_dm_connector * aconnector)41 bool amdgpu_dm_link_supports_replay(struct dc_link *link, struct amdgpu_dm_connector *aconnector)
42 {
43 struct dm_connector_state *state = to_dm_connector_state(aconnector->base.state);
44 struct dpcd_caps *dpcd_caps = &link->dpcd_caps;
45 struct adaptive_sync_caps *as_caps = &link->dpcd_caps.adaptive_sync_caps;
46
47 if (!state->freesync_capable)
48 return false;
49
50 if (!aconnector->vsdb_info.replay_mode)
51 return false;
52
53 // Check the eDP version
54 if (dpcd_caps->edp_rev < EDP_REVISION_13)
55 return false;
56
57 if (!dpcd_caps->alpm_caps.bits.AUX_WAKE_ALPM_CAP)
58 return false;
59
60 // Check adaptive sync support cap
61 if (!as_caps->dp_adap_sync_caps.bits.ADAPTIVE_SYNC_SDP_SUPPORT)
62 return false;
63
64 // Sink shall populate line deviation information
65 if (dpcd_caps->pr_info.pixel_deviation_per_line == 0 ||
66 dpcd_caps->pr_info.max_deviation_line == 0)
67 return false;
68
69 return true;
70 }
71
72 /*
73 * amdgpu_dm_set_replay_caps() - setup Replay capabilities
74 * @link: link
75 * @aconnector: aconnector
76 *
77 */
amdgpu_dm_set_replay_caps(struct dc_link * link,struct amdgpu_dm_connector * aconnector)78 bool amdgpu_dm_set_replay_caps(struct dc_link *link, struct amdgpu_dm_connector *aconnector)
79 {
80 struct replay_config pr_config = { 0 };
81 union replay_debug_flags *debug_flags = NULL;
82 struct dc *dc = link->ctx->dc;
83
84 // If Replay is already set to support, return true to skip checks
85 if (link->replay_settings.config.replay_supported)
86 return true;
87
88 if (!dc_is_embedded_signal(link->connector_signal))
89 return false;
90
91 if (link->panel_config.psr.disallow_replay)
92 return false;
93
94 if (!amdgpu_dm_link_supports_replay(link, aconnector))
95 return false;
96
97 if (!dc->ctx->dmub_srv || !dc->ctx->dmub_srv->dmub ||
98 !dc->ctx->dmub_srv->dmub->feature_caps.replay_supported)
99 return false;
100
101 // Mark Replay is supported in pr_config
102 pr_config.replay_supported = true;
103
104 debug_flags = (union replay_debug_flags *)&pr_config.debug_flags;
105 debug_flags->u32All = 0;
106 debug_flags->bitfields.visual_confirm =
107 link->ctx->dc->debug.visual_confirm == VISUAL_CONFIRM_REPLAY;
108
109 init_replay_config(link, &pr_config);
110
111 return true;
112 }
113
114 /*
115 * amdgpu_dm_link_setup_replay() - configure replay link
116 * @link: link
117 * @aconnector: aconnector
118 *
119 */
amdgpu_dm_link_setup_replay(struct dc_link * link,struct amdgpu_dm_connector * aconnector)120 bool amdgpu_dm_link_setup_replay(struct dc_link *link, struct amdgpu_dm_connector *aconnector)
121 {
122 struct replay_config *pr_config;
123
124 if (link == NULL || aconnector == NULL)
125 return false;
126
127 pr_config = &link->replay_settings.config;
128
129 if (!pr_config->replay_supported)
130 return false;
131
132 pr_config->replay_power_opt_supported = 0x11;
133 pr_config->replay_smu_opt_supported = false;
134 pr_config->replay_enable_option |= pr_enable_option_static_screen;
135 pr_config->replay_support_fast_resync_in_ultra_sleep_mode = aconnector->max_vfreq >= 2 * aconnector->min_vfreq;
136 pr_config->replay_timing_sync_supported = false;
137
138 if (!pr_config->replay_timing_sync_supported)
139 pr_config->replay_enable_option &= ~pr_enable_option_general_ui;
140
141 link->replay_settings.replay_feature_enabled = true;
142
143 return true;
144 }
145
146 /*
147 * amdgpu_dm_replay_enable() - enable replay f/w
148 * @stream: stream state
149 *
150 * Return: true if success
151 */
amdgpu_dm_replay_enable(struct dc_stream_state * stream,bool wait)152 bool amdgpu_dm_replay_enable(struct dc_stream_state *stream, bool wait)
153 {
154 bool replay_active = true;
155 struct dc_link *link = NULL;
156
157 if (stream == NULL)
158 return false;
159
160 link = stream->link;
161
162 if (link) {
163 link->dc->link_srv->edp_setup_replay(link, stream);
164 link->dc->link_srv->edp_set_coasting_vtotal(link, stream->timing.v_total);
165 DRM_DEBUG_DRIVER("Enabling replay...\n");
166 link->dc->link_srv->edp_set_replay_allow_active(link, &replay_active, wait, false, NULL);
167 return true;
168 }
169
170 return false;
171 }
172
173 /*
174 * amdgpu_dm_replay_disable() - disable replay f/w
175 * @stream: stream state
176 *
177 * Return: true if success
178 */
amdgpu_dm_replay_disable(struct dc_stream_state * stream)179 bool amdgpu_dm_replay_disable(struct dc_stream_state *stream)
180 {
181 bool replay_active = false;
182 struct dc_link *link = NULL;
183
184 if (stream == NULL)
185 return false;
186
187 link = stream->link;
188
189 if (link) {
190 DRM_DEBUG_DRIVER("Disabling replay...\n");
191 link->dc->link_srv->edp_set_replay_allow_active(stream->link, &replay_active, true, false, NULL);
192 return true;
193 }
194
195 return false;
196 }
197
198 /*
199 * amdgpu_dm_replay_disable_all() - disable replay f/w
200 * if replay is enabled on any stream
201 *
202 * Return: true if success
203 */
amdgpu_dm_replay_disable_all(struct amdgpu_display_manager * dm)204 bool amdgpu_dm_replay_disable_all(struct amdgpu_display_manager *dm)
205 {
206 DRM_DEBUG_DRIVER("Disabling replay if replay is enabled on any stream\n");
207 return dc_set_replay_allow_active(dm->dc, false);
208 }
209