drm/amd/display: Add Functions to enable Freesync Panel Replay

Add various functions for replay, such as construct, destroy, enable
get_state, and copy_setting etc. These functions communicate with the
firmware to setup and enable panel replay

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dce/Makefile

@@ -30,7 +30,7 @@ DCE = dce_audio.o dce_stream_encoder.o dce_link_encoder.o dce_hwseq.o \
 dce_mem_input.o dce_clock_source.o dce_scl_filters.o dce_transform.o \
 dce_opp.o dce_dmcu.o dce_abm.o dce_ipp.o dce_aux.o \
 dce_i2c.o dce_i2c_hw.o dce_i2c_sw.o dmub_psr.o dmub_abm.o dmub_abm_lcd.o dce_panel_cntl.o \
-dmub_hw_lock_mgr.o dmub_outbox.o
+dmub_hw_lock_mgr.o dmub_outbox.o dmub_replay.o
 
 AMD_DAL_DCE = $(addprefix $(AMDDALPATH)/dc/dce/,$(DCE))
 

drivers/gpu/drm/amd/display/dc/dce/dmub_replay.c

@@ -0,0 +1,303 @@
+/*
+ * Copyright 2023 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dc.h"
+#include "dc_dmub_srv.h"
+#include "dmub/dmub_srv.h"
+#include "core_types.h"
+#include "dmub_replay.h"
+
+#define DC_TRACE_LEVEL_MESSAGE(...) /* do nothing */
+
+#define MAX_PIPES 6
+
+/**
+ * Get Replay state from firmware.
+ */
+static void dmub_replay_get_state(struct dmub_replay *dmub, enum replay_state *state, uint8_t panel_inst)
+{
+	struct dmub_srv *srv = dmub->ctx->dmub_srv->dmub;
+	/* uint32_t raw_state = 0; */
+	uint32_t retry_count = 0;
+	enum dmub_status status;
+
+	do {
+		// Send gpint command and wait for ack
+		status = dmub_srv_send_gpint_command(srv, DMUB_GPINT__GET_REPLAY_STATE, panel_inst, 30);
+
+		if (status == DMUB_STATUS_OK) {
+			// GPINT was executed, get response
+			dmub_srv_get_gpint_response(srv, (uint32_t *)state);
+		} else
+			// Return invalid state when GPINT times out
+			*state = REPLAY_STATE_INVALID;
+	} while (++retry_count <= 1000 && *state == REPLAY_STATE_INVALID);
+
+	// Assert if max retry hit
+	if (retry_count >= 1000 && *state == REPLAY_STATE_INVALID) {
+		ASSERT(0);
+		/* To-do: Add retry fail log */
+	}
+}
+
+/**
+ * Enable/Disable Replay.
+ */
+static void dmub_replay_enable(struct dmub_replay *dmub, bool enable, bool wait, uint8_t panel_inst)
+{
+	union dmub_rb_cmd cmd;
+	struct dc_context *dc = dmub->ctx;
+	uint32_t retry_count;
+	enum replay_state state = REPLAY_STATE_0;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.replay_enable.header.type = DMUB_CMD__REPLAY;
+	cmd.replay_enable.data.panel_inst = panel_inst;
+
+	cmd.replay_enable.header.sub_type = DMUB_CMD__REPLAY_ENABLE;
+	if (enable)
+		cmd.replay_enable.data.enable = REPLAY_ENABLE;
+	else
+		cmd.replay_enable.data.enable = REPLAY_DISABLE;
+
+	cmd.replay_enable.header.payload_bytes = sizeof(struct dmub_rb_cmd_replay_enable_data);
+
+	dm_execute_dmub_cmd(dc, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
+
+	/* Below loops 1000 x 500us = 500 ms.
+	 *  Exit REPLAY may need to wait 1-2 frames to power up. Timeout after at
+	 *  least a few frames. Should never hit the max retry assert below.
+	 */
+	if (wait) {
+		for (retry_count = 0; retry_count <= 1000; retry_count++) {
+			dmub_replay_get_state(dmub, &state, panel_inst);
+
+			if (enable) {
+				if (state != REPLAY_STATE_0)
+					break;
+			} else {
+				if (state == REPLAY_STATE_0)
+					break;
+			}
+
+			fsleep(500);
+		}
+
+		/* assert if max retry hit */
+		if (retry_count >= 1000)
+			ASSERT(0);
+	}
+
+}
+
+/**
+ * Set REPLAY power optimization flags.
+ */
+static void dmub_replay_set_power_opt(struct dmub_replay *dmub, unsigned int power_opt, uint8_t panel_inst)
+{
+	union dmub_rb_cmd cmd;
+	struct dc_context *dc = dmub->ctx;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.replay_set_power_opt.header.type = DMUB_CMD__REPLAY;
+	cmd.replay_set_power_opt.header.sub_type = DMUB_CMD__SET_REPLAY_POWER_OPT;
+	cmd.replay_set_power_opt.header.payload_bytes = sizeof(struct dmub_cmd_replay_set_power_opt_data);
+	cmd.replay_set_power_opt.replay_set_power_opt_data.power_opt = power_opt;
+	cmd.replay_set_power_opt.replay_set_power_opt_data.panel_inst = panel_inst;
+
+	dm_execute_dmub_cmd(dc, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
+}
+
+/**
+ * Setup Replay by programming phy registers and sending replay hw context values to firmware.
+ */
+static bool dmub_replay_copy_settings(struct dmub_replay *dmub,
+	struct dc_link *link,
+	struct replay_context *replay_context,
+	uint8_t panel_inst)
+{
+	union dmub_rb_cmd cmd;
+	struct dc_context *dc = dmub->ctx;
+	struct dmub_cmd_replay_copy_settings_data *copy_settings_data
+		= &cmd.replay_copy_settings.replay_copy_settings_data;
+	struct pipe_ctx *pipe_ctx = NULL;
+	struct resource_context *res_ctx = &link->ctx->dc->current_state->res_ctx;
+	int i = 0;
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		if (res_ctx &&
+			res_ctx->pipe_ctx[i].stream &&
+			res_ctx->pipe_ctx[i].stream->link &&
+			res_ctx->pipe_ctx[i].stream->link == link &&
+			res_ctx->pipe_ctx[i].stream->link->connector_signal == SIGNAL_TYPE_EDP) {
+			pipe_ctx = &res_ctx->pipe_ctx[i];
+			//TODO: refactor for multi edp support
+			break;
+		}
+	}
+
+	if (!pipe_ctx)
+		return false;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.replay_copy_settings.header.type = DMUB_CMD__REPLAY;
+	cmd.replay_copy_settings.header.sub_type = DMUB_CMD__REPLAY_COPY_SETTINGS;
+	cmd.replay_copy_settings.header.payload_bytes = sizeof(struct dmub_cmd_replay_copy_settings_data);
+
+	// HW insts
+	copy_settings_data->aux_inst				= replay_context->aux_inst;
+	copy_settings_data->digbe_inst				= replay_context->digbe_inst;
+	copy_settings_data->digfe_inst				= replay_context->digfe_inst;
+
+	if (pipe_ctx->plane_res.dpp)
+		copy_settings_data->dpp_inst			= pipe_ctx->plane_res.dpp->inst;
+	else
+		copy_settings_data->dpp_inst			= 0;
+	if (pipe_ctx->stream_res.tg)
+		copy_settings_data->otg_inst			= pipe_ctx->stream_res.tg->inst;
+	else
+		copy_settings_data->otg_inst			= 0;
+
+	copy_settings_data->dpphy_inst				= link->link_enc->transmitter;
+
+	// Misc
+	copy_settings_data->line_time_in_ns			= replay_context->line_time_in_ns;
+	copy_settings_data->panel_inst				= panel_inst;
+	copy_settings_data->debug.u32All			= link->replay_settings.config.debug_flags;
+	copy_settings_data->pixel_deviation_per_line		= link->dpcd_caps.pr_info.pixel_deviation_per_line;
+	copy_settings_data->max_deviation_line			= link->dpcd_caps.pr_info.max_deviation_line;
+	copy_settings_data->smu_optimizations_en		= link->replay_settings.replay_smu_opt_enable;
+	copy_settings_data->replay_timing_sync_supported = link->replay_settings.config.replay_timing_sync_supported;
+
+	copy_settings_data->flags.u32All = 0;
+	copy_settings_data->flags.bitfields.fec_enable_status = (link->fec_state == dc_link_fec_enabled);
+	copy_settings_data->flags.bitfields.dsc_enable_status = (pipe_ctx->stream->timing.flags.DSC == 1);
+	// WA for PSRSU+DSC on specific TCON, if DSC is enabled, force PSRSU as ffu mode(full frame update)
+	if (((link->dpcd_caps.fec_cap.bits.FEC_CAPABLE &&
+		!link->dc->debug.disable_fec) &&
+		(link->dpcd_caps.dsc_caps.dsc_basic_caps.fields.dsc_support.DSC_SUPPORT &&
+		!link->panel_config.dsc.disable_dsc_edp &&
+		link->dc->caps.edp_dsc_support)) &&
+		link->dpcd_caps.sink_dev_id == DP_DEVICE_ID_38EC11 /*&&
+		(!memcmp(link->dpcd_caps.sink_dev_id_str, DP_SINK_DEVICE_STR_ID_1,
+			sizeof(DP_SINK_DEVICE_STR_ID_1)) ||
+		!memcmp(link->dpcd_caps.sink_dev_id_str, DP_SINK_DEVICE_STR_ID_2,
+			sizeof(DP_SINK_DEVICE_STR_ID_2)))*/)
+		copy_settings_data->flags.bitfields.force_wakeup_by_tps3 = 1;
+	else
+		copy_settings_data->flags.bitfields.force_wakeup_by_tps3 = 0;
+
+
+	dm_execute_dmub_cmd(dc, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
+
+	return true;
+}
+
+/**
+ * Set coasting vtotal.
+ */
+static void dmub_replay_set_coasting_vtotal(struct dmub_replay *dmub,
+		uint16_t coasting_vtotal,
+		uint8_t panel_inst)
+{
+	union dmub_rb_cmd cmd;
+	struct dc_context *dc = dmub->ctx;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.replay_set_coasting_vtotal.header.type = DMUB_CMD__REPLAY;
+	cmd.replay_set_coasting_vtotal.header.sub_type = DMUB_CMD__REPLAY_SET_COASTING_VTOTAL;
+	cmd.replay_set_coasting_vtotal.header.payload_bytes = sizeof(struct dmub_cmd_replay_set_coasting_vtotal_data);
+	cmd.replay_set_coasting_vtotal.replay_set_coasting_vtotal_data.coasting_vtotal = coasting_vtotal;
+
+	dm_execute_dmub_cmd(dc, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
+}
+
+/**
+ * Get Replay residency from firmware.
+ */
+static void dmub_replay_residency(struct dmub_replay *dmub, uint8_t panel_inst,
+	uint32_t *residency, const bool is_start, const bool is_alpm)
+{
+	struct dmub_srv *srv = dmub->ctx->dmub_srv->dmub;
+	uint16_t param = (uint16_t)(panel_inst << 8);
+
+	if (is_alpm)
+		param |= REPLAY_RESIDENCY_MODE_ALPM;
+
+	if (is_start)
+		param |= REPLAY_RESIDENCY_ENABLE;
+
+	// Send gpint command and wait for ack
+	dmub_srv_send_gpint_command(srv, DMUB_GPINT__REPLAY_RESIDENCY, param, 30);
+
+	if (!is_start)
+		dmub_srv_get_gpint_response(srv, residency);
+	else
+		*residency = 0;
+}
+
+static const struct dmub_replay_funcs replay_funcs = {
+	.replay_copy_settings		= dmub_replay_copy_settings,
+	.replay_enable			= dmub_replay_enable,
+	.replay_get_state		= dmub_replay_get_state,
+	.replay_set_power_opt		= dmub_replay_set_power_opt,
+	.replay_set_coasting_vtotal	= dmub_replay_set_coasting_vtotal,
+	.replay_residency		= dmub_replay_residency,
+};
+
+/**
+ * Construct Replay object.
+ */
+static void dmub_replay_construct(struct dmub_replay *replay, struct dc_context *ctx)
+{
+	replay->ctx = ctx;
+	replay->funcs = &replay_funcs;
+}
+
+/**
+ * Allocate and initialize Replay object.
+ */
+struct dmub_replay *dmub_replay_create(struct dc_context *ctx)
+{
+	struct dmub_replay *replay = kzalloc(sizeof(struct dmub_replay), GFP_KERNEL);
+
+	if (replay == NULL) {
+		BREAK_TO_DEBUGGER();
+		return NULL;
+	}
+
+	dmub_replay_construct(replay, ctx);
+
+	return replay;
+}
+
+/**
+ * Deallocate Replay object.
+ */
+void dmub_replay_destroy(struct dmub_replay **dmub)
+{
+	kfree(*dmub);
+	*dmub = NULL;
+}

drivers/gpu/drm/amd/display/dc/dce/dmub_replay.h

@@ -0,0 +1,58 @@
+/*
+ * Copyright 2023 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef _DMUB_REPLAY_H_
+#define _DMUB_REPLAY_H_
+
+#include "dc_types.h"
+#include "dmub_cmd.h"
+struct dc_link;
+struct dmub_replay_funcs;
+
+struct dmub_replay {
+	struct dc_context *ctx;
+	const struct dmub_replay_funcs *funcs;
+};
+
+struct dmub_replay_funcs {
+	void (*replay_get_state)(struct dmub_replay *dmub, enum replay_state *state,
+		uint8_t panel_inst);
+	void (*replay_enable)(struct dmub_replay *dmub, bool enable, bool wait,
+		uint8_t panel_inst);
+	bool (*replay_copy_settings)(struct dmub_replay *dmub, struct dc_link *link,
+		struct replay_context *replay_context, uint8_t panel_inst);
+	void (*replay_set_power_opt)(struct dmub_replay *dmub, unsigned int power_opt,
+		uint8_t panel_inst);
+	void (*replay_set_coasting_vtotal)(struct dmub_replay *dmub, uint16_t coasting_vtotal,
+		uint8_t panel_inst);
+	void (*replay_residency)(struct dmub_replay *dmub,
+		uint8_t panel_inst, uint32_t *residency, const bool is_start, const bool is_alpm);
+};
+
+struct dmub_replay *dmub_replay_create(struct dc_context *ctx);
+void dmub_replay_destroy(struct dmub_replay **dmub);
+
+
+#endif /* _DMUB_REPLAY_H_ */

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c

@@ -96,6 +96,7 @@
 #include "dce/dmub_psr.h"
 #include "dce/dce_aux.h"
 #include "dce/dce_i2c.h"
+#include "dce/dmub_replay.h"
 
 #include "dml/dcn30/display_mode_vba_30.h"
 #include "vm_helper.h"
@@ -1480,6 +1481,9 @@ static void dcn31_resource_destruct(struct dcn31_resource_pool *pool)
 	if (pool->base.psr != NULL)
 		dmub_psr_destroy(&pool->base.psr);
 
+	if (pool->base.replay != NULL)
+		dmub_replay_destroy(&pool->base.replay);
+
 	if (pool->base.dccg != NULL)
 		dcn_dccg_destroy(&pool->base.dccg);
 }
@@ -2086,6 +2090,14 @@ static bool dcn31_resource_construct(
 		goto create_fail;
 	}
 
+	/* Replay */
+	pool->base.replay = dmub_replay_create(ctx);
+	if (pool->base.replay == NULL) {
+		dm_error("DC: failed to create replay obj!\n");
+		BREAK_TO_DEBUGGER();
+		goto create_fail;
+	}
+
 	/* ABM */
 	for (i = 0; i < pool->base.res_cap->num_timing_generator; i++) {
 		pool->base.multiple_abms[i] = dmub_abm_create(ctx,

drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c

@@ -93,6 +93,7 @@
 #include "reg_helper.h"
 #include "dce/dmub_abm.h"
 #include "dce/dmub_psr.h"
+#include "dce/dmub_replay.h"
 #include "dce/dce_aux.h"
 #include "dce/dce_i2c.h"
 #include "dml/dcn314/display_mode_vba_314.h"
@@ -1530,6 +1531,9 @@ static void dcn314_resource_destruct(struct dcn314_resource_pool *pool)
 	if (pool->base.psr != NULL)
 		dmub_psr_destroy(&pool->base.psr);
 
+	if (pool->base.replay != NULL)
+		dmub_replay_destroy(&pool->base.replay);
+
 	if (pool->base.dccg != NULL)
 		dcn_dccg_destroy(&pool->base.dccg);
 }
@@ -2027,6 +2031,14 @@ static bool dcn314_resource_construct(
 		goto create_fail;
 	}
 
+	/* Replay */
+	pool->base.replay = dmub_replay_create(ctx);
+	if (pool->base.replay == NULL) {
+		dm_error("DC: failed to create replay obj!\n");
+		BREAK_TO_DEBUGGER();
+		goto create_fail;
+	}
+
 	/* ABM */
 	for (i = 0; i < pool->base.res_cap->num_timing_generator; i++) {
 		pool->base.multiple_abms[i] = dmub_abm_create(ctx,

drivers/gpu/drm/amd/display/dc/inc/link.h

@@ -269,6 +269,20 @@ struct link_service {
 			uint16_t psr_vtotal_su);
 	void (*edp_get_psr_residency)(
 			const struct dc_link *link, uint32_t *residency);
+
+	bool (*edp_get_replay_state)(
+			const struct dc_link *link, uint64_t *state);
+	bool (*edp_set_replay_allow_active)(struct dc_link *dc_link,
+			const bool *enable, bool wait, bool force_static,
+			const unsigned int *power_opts);
+	bool (*edp_setup_replay)(struct dc_link *link,
+			const struct dc_stream_state *stream);
+	bool (*edp_set_coasting_vtotal)(
+			struct dc_link *link, uint16_t coasting_vtotal);
+	bool (*edp_replay_residency)(const struct dc_link *link,
+			unsigned int *residency, const bool is_start,
+			const bool is_alpm);
+
 	bool (*edp_wait_for_t12)(struct dc_link *link);
 	bool (*edp_is_ilr_optimization_required)(struct dc_link *link,
 			struct dc_crtc_timing *crtc_timing);

drivers/gpu/drm/amd/display/dc/link/link_factory.c

@@ -207,6 +207,13 @@ static void construct_link_service_edp_panel_control(struct link_service *link_s
 	link_srv->edp_set_sink_vtotal_in_psr_active =
 			edp_set_sink_vtotal_in_psr_active;
 	link_srv->edp_get_psr_residency = edp_get_psr_residency;
+
+	link_srv->edp_get_replay_state = edp_get_replay_state;
+	link_srv->edp_set_replay_allow_active = edp_set_replay_allow_active;
+	link_srv->edp_setup_replay = edp_setup_replay;
+	link_srv->edp_set_coasting_vtotal = edp_set_coasting_vtotal;
+	link_srv->edp_replay_residency = edp_replay_residency;
+
 	link_srv->edp_wait_for_t12 = edp_wait_for_t12;
 	link_srv->edp_is_ilr_optimization_required =
 			edp_is_ilr_optimization_required;

drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c

@@ -34,9 +34,13 @@
 #include "dm_helpers.h"
 #include "dal_asic_id.h"
 #include "dce/dmub_psr.h"
+#include "dc/dc_dmub_srv.h"
+#include "dce/dmub_replay.h"
 #include "abm.h"
 #define DC_LOGGER_INIT(logger)
 
+#define DP_SINK_PR_ENABLE_AND_CONFIGURATION		0x37B
+
 /* Travis */
 static const uint8_t DP_VGA_LVDS_CONVERTER_ID_2[] = "sivarT";
 /* Nutmeg */
@@ -827,6 +831,167 @@ bool edp_set_sink_vtotal_in_psr_active(const struct dc_link *link, uint16_t psr_
 	return true;
 }
 
+bool edp_set_replay_allow_active(struct dc_link *link, const bool *allow_active,
+	bool wait, bool force_static, const unsigned int *power_opts)
+{
+	struct dc  *dc = link->ctx->dc;
+	struct dmub_replay *replay = dc->res_pool->replay;
+	unsigned int panel_inst;
+
+	if (replay == NULL && force_static)
+		return false;
+
+	if (!dc_get_edp_link_panel_inst(dc, link, &panel_inst))
+		return false;
+
+	/* Set power optimization flag */
+	if (power_opts && link->replay_settings.replay_power_opt_active != *power_opts) {
+		if (link->replay_settings.replay_feature_enabled && replay->funcs->replay_set_power_opt) {
+			replay->funcs->replay_set_power_opt(replay, *power_opts, panel_inst);
+			link->replay_settings.replay_power_opt_active = *power_opts;
+		}
+	}
+
+	/* Activate or deactivate Replay */
+	if (allow_active && link->replay_settings.replay_allow_active != *allow_active) {
+		// TODO: Handle mux change case if force_static is set
+		// If force_static is set, just change the replay_allow_active state directly
+		if (replay != NULL && link->replay_settings.replay_feature_enabled)
+			replay->funcs->replay_enable(replay, *allow_active, wait, panel_inst);
+		link->replay_settings.replay_allow_active = *allow_active;
+	}
+
+	return true;
+}
+
+bool edp_get_replay_state(const struct dc_link *link, uint64_t *state)
+{
+	struct dc  *dc = link->ctx->dc;
+	struct dmub_replay *replay = dc->res_pool->replay;
+	unsigned int panel_inst;
+	enum replay_state pr_state = REPLAY_STATE_0;
+
+	if (!dc_get_edp_link_panel_inst(dc, link, &panel_inst))
+		return false;
+
+	if (replay != NULL && link->replay_settings.replay_feature_enabled)
+		replay->funcs->replay_get_state(replay, &pr_state, panel_inst);
+	*state = pr_state;
+
+	return true;
+}
+
+bool edp_setup_replay(struct dc_link *link, const struct dc_stream_state *stream)
+{
+	/* To-do: Setup Replay */
+	struct dc *dc = link->ctx->dc;
+	struct dmub_replay *replay = dc->res_pool->replay;
+	int i;
+	unsigned int panel_inst;
+	struct replay_context replay_context = { 0 };
+	unsigned int lineTimeInNs = 0;
+
+
+	union replay_enable_and_configuration replay_config;
+
+	union dpcd_alpm_configuration alpm_config;
+
+	replay_context.controllerId = CONTROLLER_ID_UNDEFINED;
+
+	if (!link)
+		return false;
+
+	if (!replay)
+		return false;
+
+	if (!dc_get_edp_link_panel_inst(dc, link, &panel_inst))
+		return false;
+
+	replay_context.aux_inst = link->ddc->ddc_pin->hw_info.ddc_channel;
+	replay_context.digbe_inst = link->link_enc->transmitter;
+	replay_context.digfe_inst = link->link_enc->preferred_engine;
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		if (dc->current_state->res_ctx.pipe_ctx[i].stream
+				== stream) {
+			/* dmcu -1 for all controller id values,
+			 * therefore +1 here
+			 */
+			replay_context.controllerId =
+				dc->current_state->res_ctx.pipe_ctx[i].stream_res.tg->inst + 1;
+			break;
+		}
+	}
+
+	lineTimeInNs =
+		((stream->timing.h_total * 1000000) /
+			(stream->timing.pix_clk_100hz / 10)) + 1;
+
+	replay_context.line_time_in_ns = lineTimeInNs;
+
+	if (replay)
+		link->replay_settings.replay_feature_enabled =
+			replay->funcs->replay_copy_settings(replay, link, &replay_context, panel_inst);
+	if (link->replay_settings.replay_feature_enabled) {
+
+		replay_config.bits.FREESYNC_PANEL_REPLAY_MODE = 1;
+		replay_config.bits.TIMING_DESYNC_ERROR_VERIFICATION =
+			link->replay_settings.config.replay_timing_sync_supported;
+		replay_config.bits.STATE_TRANSITION_ERROR_DETECTION = 1;
+		dm_helpers_dp_write_dpcd(link->ctx, link,
+			DP_SINK_PR_ENABLE_AND_CONFIGURATION,
+			(uint8_t *)&(replay_config.raw), sizeof(uint8_t));
+
+		memset(&alpm_config, 0, sizeof(alpm_config));
+		alpm_config.bits.ENABLE = 1;
+		dm_helpers_dp_write_dpcd(
+			link->ctx,
+			link,
+			DP_RECEIVER_ALPM_CONFIG,
+			&alpm_config.raw,
+			sizeof(alpm_config.raw));
+	}
+	return true;
+}
+
+bool edp_set_coasting_vtotal(struct dc_link *link, uint16_t coasting_vtotal)
+{
+	struct dc *dc = link->ctx->dc;
+	struct dmub_replay *replay = dc->res_pool->replay;
+	unsigned int panel_inst;
+
+	if (!replay)
+		return false;
+
+	if (!dc_get_edp_link_panel_inst(dc, link, &panel_inst))
+		return false;
+
+	if (coasting_vtotal && link->replay_settings.coasting_vtotal != coasting_vtotal) {
+		replay->funcs->replay_set_coasting_vtotal(replay, coasting_vtotal, panel_inst);
+		link->replay_settings.coasting_vtotal = coasting_vtotal;
+	}
+
+	return true;
+}
+
+bool edp_replay_residency(const struct dc_link *link,
+	unsigned int *residency, const bool is_start, const bool is_alpm)
+{
+	struct dc  *dc = link->ctx->dc;
+	struct dmub_replay *replay = dc->res_pool->replay;
+	unsigned int panel_inst;
+
+	if (!dc_get_edp_link_panel_inst(dc, link, &panel_inst))
+		return false;
+
+	if (replay != NULL && link->replay_settings.replay_feature_enabled)
+		replay->funcs->replay_residency(replay, panel_inst, residency, is_start, is_alpm);
+	else
+		*residency = 0;
+
+	return true;
+}
+
 static struct abm *get_abm_from_stream_res(const struct dc_link *link)
 {
 	int i;

drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.h

@@ -53,6 +53,14 @@ bool edp_setup_psr(struct dc_link *link,
 bool edp_set_sink_vtotal_in_psr_active(const struct dc_link *link,
        uint16_t psr_vtotal_idle, uint16_t psr_vtotal_su);
 void edp_get_psr_residency(const struct dc_link *link, uint32_t *residency);
+bool edp_set_replay_allow_active(struct dc_link *dc_link, const bool *enable,
+	bool wait, bool force_static, const unsigned int *power_opts);
+bool edp_setup_replay(struct dc_link *link,
+		const struct dc_stream_state *stream);
+bool edp_set_coasting_vtotal(struct dc_link *link, uint16_t coasting_vtotal);
+bool edp_replay_residency(const struct dc_link *link,
+	unsigned int *residency, const bool is_start, const bool is_alpm);
+bool edp_get_replay_state(const struct dc_link *link, uint64_t *state);
 bool edp_wait_for_t12(struct dc_link *link);
 bool edp_is_ilr_optimization_required(struct dc_link *link,
        struct dc_crtc_timing *crtc_timing);