amdgpu_dm_replay.c

  1// SPDX-License-Identifier: MIT
  2/*
  3 * Copyright 2023 Advanced Micro Devices, Inc.
  4 *
  5 * Permission is hereby granted, free of charge, to any person obtaining a
  6 * copy of this software and associated documentation files (the "Software"),
  7 * to deal in the Software without restriction, including without limitation
  8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  9 * and/or sell copies of the Software, and to permit persons to whom the
 10 * Software is furnished to do so, subject to the following conditions:
 11 *
 12 * The above copyright notice and this permission notice shall be included in
 13 * all copies or substantial portions of the Software.
 14 *
 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 21 * OTHER DEALINGS IN THE SOFTWARE.
 22 *
 23 * Authors: AMD
 24 *
 25 */
 26
 27#include "amdgpu_dm_replay.h"
 28#include "dc_dmub_srv.h"
 29#include "dc.h"
 30#include "dm_helpers.h"
 31#include "amdgpu_dm.h"
 32#include "modules/power/power_helpers.h"
 33#include "dmub/inc/dmub_cmd.h"
 34#include "dc/inc/link_service.h"
 35
 36/*
 37 * amdgpu_dm_link_supports_replay() - check if the link supports replay
 38 * @link: link
 39 * @aconnector: aconnector
 40 *
 41 */
 42bool amdgpu_dm_link_supports_replay(struct dc_link *link, struct amdgpu_dm_connector *aconnector)
 43{
 44	struct dm_connector_state *state = to_dm_connector_state(aconnector->base.state);
 45	struct dpcd_caps *dpcd_caps = &link->dpcd_caps;
 46	struct adaptive_sync_caps *as_caps = &link->dpcd_caps.adaptive_sync_caps;
 47
 48	if (!state->freesync_capable)
 49		return false;
 50
 51	if (!aconnector->vsdb_info.replay_mode)
 52		return false;
 53
 54	// Check the eDP version
 55	if (dpcd_caps->edp_rev < EDP_REVISION_13)
 56		return false;
 57
 58	if (!dpcd_caps->alpm_caps.bits.AUX_WAKE_ALPM_CAP)
 59		return false;
 60
 61	// Check adaptive sync support cap
 62	if (!as_caps->dp_adap_sync_caps.bits.ADAPTIVE_SYNC_SDP_SUPPORT)
 63		return false;
 64
 65	// Sink shall populate line deviation information
 66	if (dpcd_caps->pr_info.pixel_deviation_per_line == 0 ||
 67		dpcd_caps->pr_info.max_deviation_line == 0)
 68		return false;
 69
 70	return true;
 71}
 72
 73/*
 74 * amdgpu_dm_set_replay_caps() - setup Replay capabilities
 75 * @link: link
 76 * @aconnector: aconnector
 77 *
 78 */
 79bool amdgpu_dm_set_replay_caps(struct dc_link *link, struct amdgpu_dm_connector *aconnector)
 80{
 81	struct replay_config pr_config = { 0 };
 82	union replay_debug_flags *debug_flags = NULL;
 83	struct dc *dc = link->ctx->dc;
 84
 85	// If Replay is already set to support, return true to skip checks
 86	if (link->replay_settings.config.replay_supported)
 87		return true;
 88
 89	if (!dc_is_embedded_signal(link->connector_signal))
 90		return false;
 91
 92	if (link->panel_config.psr.disallow_replay)
 93		return false;
 94
 95	if (!amdgpu_dm_link_supports_replay(link, aconnector))
 96		return false;
 97
 98	if (!dc->ctx->dmub_srv || !dc->ctx->dmub_srv->dmub ||
 99		!dc->ctx->dmub_srv->dmub->feature_caps.replay_supported)
100		return false;
101
102	// Mark Replay is supported in pr_config
103	pr_config.replay_supported = true;
104
105	debug_flags = (union replay_debug_flags *)&pr_config.debug_flags;
106	debug_flags->u32All = 0;
107	debug_flags->bitfields.visual_confirm =
108		link->ctx->dc->debug.visual_confirm == VISUAL_CONFIRM_REPLAY;
109
110	init_replay_config(link, &pr_config);
111
112	return true;
113}
114
115/*
116 * amdgpu_dm_link_setup_replay() - configure replay link
117 * @link: link
118 * @aconnector: aconnector
119 *
120 */
121bool amdgpu_dm_link_setup_replay(struct dc_link *link, struct amdgpu_dm_connector *aconnector)
122{
123	struct replay_config *pr_config;
124
125	if (link == NULL || aconnector == NULL)
126		return false;
127
128	pr_config = &link->replay_settings.config;
129
130	if (!pr_config->replay_supported)
131		return false;
132
133	pr_config->replay_power_opt_supported = 0x11;
134	pr_config->replay_smu_opt_supported = false;
135	pr_config->replay_enable_option |= pr_enable_option_static_screen;
136	pr_config->replay_support_fast_resync_in_ultra_sleep_mode = aconnector->max_vfreq >= 2 * aconnector->min_vfreq;
137	pr_config->replay_timing_sync_supported = false;
138
139	if (!pr_config->replay_timing_sync_supported)
140		pr_config->replay_enable_option &= ~pr_enable_option_general_ui;
141
142	link->replay_settings.replay_feature_enabled = true;
143
144	return true;
145}
146
147/*
148 * amdgpu_dm_replay_enable() - enable replay f/w
149 * @stream: stream state
150 *
151 * Return: true if success
152 */
153bool amdgpu_dm_replay_enable(struct dc_stream_state *stream, bool wait)
154{
155	bool replay_active = true;
156	struct dc_link *link = NULL;
157
158	if (stream == NULL)
159		return false;
160
161	link = stream->link;
162
163	if (link) {
164		link->dc->link_srv->edp_setup_replay(link, stream);
165		link->dc->link_srv->edp_set_coasting_vtotal(link, stream->timing.v_total, 0);
166		DRM_DEBUG_DRIVER("Enabling replay...\n");
167		link->dc->link_srv->edp_set_replay_allow_active(link, &replay_active, wait, false, NULL);
168		return true;
169	}
170
171	return false;
172}
173
174/*
175 * amdgpu_dm_replay_disable() - disable replay f/w
176 * @stream:  stream state
177 *
178 * Return: true if success
179 */
180bool amdgpu_dm_replay_disable(struct dc_stream_state *stream)
181{
182	bool replay_active = false;
183	struct dc_link *link = NULL;
184
185	if (stream == NULL)
186		return false;
187
188	link = stream->link;
189
190	if (link) {
191		DRM_DEBUG_DRIVER("Disabling replay...\n");
192		link->dc->link_srv->edp_set_replay_allow_active(stream->link, &replay_active, true, false, NULL);
193		return true;
194	}
195
196	return false;
197}
198
199/*
200 * amdgpu_dm_replay_disable_all() - disable replay f/w
201 * if replay is enabled on any stream
202 *
203 * Return: true if success
204 */
205bool amdgpu_dm_replay_disable_all(struct amdgpu_display_manager *dm)
206{
207	DRM_DEBUG_DRIVER("Disabling replay if replay is enabled on any stream\n");
208	return dc_set_replay_allow_active(dm->dc, false);
209}