xref: /openbmc/linux/drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_trace.c (revision 98ce7d32)

/*
 * Copyright 2022 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 "link_dp_trace.h"
#include "link/protocols/link_dpcd.h"
#include "link.h"

void dp_trace_init(struct dc_link *link)
{
	memset(&link->dp_trace, 0, sizeof(link->dp_trace));
	link->dp_trace.is_initialized = true;
}

void dp_trace_reset(struct dc_link *link)
{
	memset(&link->dp_trace, 0, sizeof(link->dp_trace));
}

bool dp_trace_is_initialized(struct dc_link *link)
{
	return link->dp_trace.is_initialized;
}

void dp_trace_detect_lt_init(struct dc_link *link)
{
	memset(&link->dp_trace.detect_lt_trace, 0, sizeof(link->dp_trace.detect_lt_trace));
}

void dp_trace_commit_lt_init(struct dc_link *link)
{
	memset(&link->dp_trace.commit_lt_trace, 0, sizeof(link->dp_trace.commit_lt_trace));
}

void dp_trace_link_loss_increment(struct dc_link *link)
{
	link->dp_trace.link_loss_count++;
}

void dp_trace_lt_fail_count_update(struct dc_link *link,
		unsigned int fail_count,
		bool in_detection)
{
	if (in_detection)
		link->dp_trace.detect_lt_trace.counts.fail = fail_count;
	else
		link->dp_trace.commit_lt_trace.counts.fail = fail_count;
}

void dp_trace_lt_total_count_increment(struct dc_link *link,
		bool in_detection)
{
	if (in_detection)
		link->dp_trace.detect_lt_trace.counts.total++;
	else
		link->dp_trace.commit_lt_trace.counts.total++;
}

void dp_trace_set_is_logged_flag(struct dc_link *link,
		bool in_detection,
		bool is_logged)
{
	if (in_detection)
		link->dp_trace.detect_lt_trace.is_logged = is_logged;
	else
		link->dp_trace.commit_lt_trace.is_logged = is_logged;
}

bool dp_trace_is_logged(struct dc_link *link, bool in_detection)
{
	if (in_detection)
		return link->dp_trace.detect_lt_trace.is_logged;
	else
		return link->dp_trace.commit_lt_trace.is_logged;
}

void dp_trace_lt_result_update(struct dc_link *link,
		enum link_training_result result,
		bool in_detection)
{
	if (in_detection)
		link->dp_trace.detect_lt_trace.result = result;
	else
		link->dp_trace.commit_lt_trace.result = result;
}

void dp_trace_set_lt_start_timestamp(struct dc_link *link,
		bool in_detection)
{
	if (in_detection)
		link->dp_trace.detect_lt_trace.timestamps.start = dm_get_timestamp(link->dc->ctx);
	else
		link->dp_trace.commit_lt_trace.timestamps.start = dm_get_timestamp(link->dc->ctx);
}

void dp_trace_set_lt_end_timestamp(struct dc_link *link,
		bool in_detection)
{
	if (in_detection)
		link->dp_trace.detect_lt_trace.timestamps.end = dm_get_timestamp(link->dc->ctx);
	else
		link->dp_trace.commit_lt_trace.timestamps.end = dm_get_timestamp(link->dc->ctx);
}

unsigned long long dp_trace_get_lt_end_timestamp(struct dc_link *link,
		bool in_detection)
{
	if (in_detection)
		return link->dp_trace.detect_lt_trace.timestamps.end;
	else
		return link->dp_trace.commit_lt_trace.timestamps.end;
}

const struct dp_trace_lt_counts *dp_trace_get_lt_counts(struct dc_link *link,
		bool in_detection)
{
	if (in_detection)
		return &link->dp_trace.detect_lt_trace.counts;
	else
		return &link->dp_trace.commit_lt_trace.counts;
}

unsigned int dp_trace_get_link_loss_count(struct dc_link *link)
{
	return link->dp_trace.link_loss_count;
}

void dp_trace_set_edp_power_timestamp(struct dc_link *link,
		bool power_up)
{
	if (!power_up)
		/*save driver power off time stamp*/
		link->dp_trace.edp_trace_power_timestamps.poweroff = dm_get_timestamp(link->dc->ctx);
	else
		link->dp_trace.edp_trace_power_timestamps.poweron = dm_get_timestamp(link->dc->ctx);
}

uint64_t dp_trace_get_edp_poweron_timestamp(struct dc_link *link)
{
	return link->dp_trace.edp_trace_power_timestamps.poweron;
}

uint64_t dp_trace_get_edp_poweroff_timestamp(struct dc_link *link)
{
	return link->dp_trace.edp_trace_power_timestamps.poweroff;
}

void dp_trace_source_sequence(struct dc_link *link, uint8_t dp_test_mode)
{
	if (link != NULL && link->dc->debug.enable_driver_sequence_debug)
		core_link_write_dpcd(link, DP_SOURCE_SEQUENCE,
					&dp_test_mode, sizeof(dp_test_mode));
}