// SPDX-License-Identifier: GPL-2.0
/*
 * Intel dynamic_speed_select -- Enumerate and control features
 * Copyright (c) 2019 Intel Corporation.
 */

#include "isst.h"

#define DISP_FREQ_MULTIPLIER 100000

static void printcpumask(int str_len, char *str, int mask_size,
			 cpu_set_t *cpu_mask)
{
	int i, max_cpus = get_topo_max_cpus();
	unsigned int *mask;
	int size, index, curr_index;

	size = max_cpus / (sizeof(unsigned int) * 8);
	if (max_cpus % (sizeof(unsigned int) * 8))
		size++;

	mask = calloc(size, sizeof(unsigned int));
	if (!mask)
		return;

	for (i = 0; i < max_cpus; ++i) {
		int mask_index, bit_index;

		if (!CPU_ISSET_S(i, mask_size, cpu_mask))
			continue;

		mask_index = i / (sizeof(unsigned int) * 8);
		bit_index = i % (sizeof(unsigned int) * 8);
		mask[mask_index] |= BIT(bit_index);
	}

	curr_index = 0;
	for (i = size - 1; i >= 0; --i) {
		index = snprintf(&str[curr_index], str_len - curr_index, "%08x",
				 mask[i]);
		curr_index += index;
		if (i) {
			strncat(&str[curr_index], ",", str_len - curr_index);
			curr_index++;
		}
	}

	free(mask);
}

static void format_and_print_txt(FILE *outf, int level, char *header,
				 char *value)
{
	char *spaces = "  ";
	static char delimiters[256];
	int i, j = 0;

	if (!level)
		return;

	if (level == 1) {
		strcpy(delimiters, " ");
	} else {
		for (i = 0; i < level - 1; ++i)
			j += snprintf(&delimiters[j], sizeof(delimiters) - j,
				      "%s", spaces);
	}

	if (header && value) {
		fprintf(outf, "%s", delimiters);
		fprintf(outf, "%s:%s\n", header, value);
	} else if (header) {
		fprintf(outf, "%s", delimiters);
		fprintf(outf, "%s\n", header);
	}
}

static int last_level;
static void format_and_print(FILE *outf, int level, char *header, char *value)
{
	char *spaces = "  ";
	static char delimiters[256];
	int i;

	if (!out_format_is_json()) {
		format_and_print_txt(outf, level, header, value);
		return;
	}

	if (level == 0) {
		if (header)
			fprintf(outf, "{");
		else
			fprintf(outf, "\n}\n");

	} else {
		int j = 0;

		for (i = 0; i < level; ++i)
			j += snprintf(&delimiters[j], sizeof(delimiters) - j,
				      "%s", spaces);

		if (last_level == level)
			fprintf(outf, ",\n");

		if (value) {
			if (last_level != level)
				fprintf(outf, "\n");

			fprintf(outf, "%s\"%s\": ", delimiters, header);
			fprintf(outf, "\"%s\"", value);
		} else {
			for (i = last_level - 1; i >= level; --i) {
				int k = 0;

				for (j = i; j > 0; --j)
					k += snprintf(&delimiters[k],
						      sizeof(delimiters) - k,
						      "%s", spaces);
				if (i == level && header)
					fprintf(outf, "\n%s},", delimiters);
				else
					fprintf(outf, "\n%s}", delimiters);
			}
			if (abs(last_level - level) < 3)
				fprintf(outf, "\n");
			if (header)
				fprintf(outf, "%s\"%s\": {", delimiters,
					header);
		}
	}

	last_level = level;
}

static void print_packag_info(int cpu, FILE *outf)
{
	char header[256];

	snprintf(header, sizeof(header), "package-%d",
		 get_physical_package_id(cpu));
	format_and_print(outf, 1, header, NULL);
	snprintf(header, sizeof(header), "die-%d", get_physical_die_id(cpu));
	format_and_print(outf, 2, header, NULL);
	snprintf(header, sizeof(header), "cpu-%d", cpu);
	format_and_print(outf, 3, header, NULL);
}

static void _isst_pbf_display_information(int cpu, FILE *outf, int level,
					  struct isst_pbf_info *pbf_info,
					  int disp_level)
{
	char header[256];
	char value[256];

	snprintf(header, sizeof(header), "speed-select-base-freq");
	format_and_print(outf, disp_level, header, NULL);

	snprintf(header, sizeof(header), "high-priority-base-frequency(KHz)");
	snprintf(value, sizeof(value), "%d",
		 pbf_info->p1_high * DISP_FREQ_MULTIPLIER);
	format_and_print(outf, disp_level + 1, header, value);

	snprintf(header, sizeof(header), "high-priority-cpu-mask");
	printcpumask(sizeof(value), value, pbf_info->core_cpumask_size,
		     pbf_info->core_cpumask);
	format_and_print(outf, disp_level + 1, header, value);

	snprintf(header, sizeof(header), "low-priority-base-frequency(KHz)");
	snprintf(value, sizeof(value), "%d",
		 pbf_info->p1_low * DISP_FREQ_MULTIPLIER);
	format_and_print(outf, disp_level + 1, header, value);

	snprintf(header, sizeof(header), "tjunction-temperature(C)");
	snprintf(value, sizeof(value), "%d", pbf_info->t_prochot);
	format_and_print(outf, disp_level + 1, header, value);

	snprintf(header, sizeof(header), "thermal-design-power(W)");
	snprintf(value, sizeof(value), "%d", pbf_info->tdp);
	format_and_print(outf, disp_level + 1, header, value);
}

static void _isst_fact_display_information(int cpu, FILE *outf, int level,
					   int fact_bucket, int fact_avx,
					   struct isst_fact_info *fact_info,
					   int base_level)
{
	struct isst_fact_bucket_info *bucket_info = fact_info->bucket_info;
	char header[256];
	char value[256];
	int j;

	snprintf(header, sizeof(header), "speed-select-turbo-freq");
	format_and_print(outf, base_level, header, NULL);
	for (j = 0; j < ISST_FACT_MAX_BUCKETS; ++j) {
		if (fact_bucket != 0xff && fact_bucket != j)
			continue;

		if (!bucket_info[j].high_priority_cores_count)
			break;

		snprintf(header, sizeof(header), "bucket-%d", j);
		format_and_print(outf, base_level + 1, header, NULL);

		snprintf(header, sizeof(header), "high-priority-cores-count");
		snprintf(value, sizeof(value), "%d",
			 bucket_info[j].high_priority_cores_count);
		format_and_print(outf, base_level + 2, header, value);

		if (fact_avx & 0x01) {
			snprintf(header, sizeof(header),
				 "high-priority-max-frequency(KHz)");
			snprintf(value, sizeof(value), "%d",
				 bucket_info[j].sse_trl * DISP_FREQ_MULTIPLIER);
			format_and_print(outf, base_level + 2, header, value);
		}

		if (fact_avx & 0x02) {
			snprintf(header, sizeof(header),
				 "high-priority-max-avx2-frequency(KHz)");
			snprintf(value, sizeof(value), "%d",
				 bucket_info[j].avx_trl * DISP_FREQ_MULTIPLIER);
			format_and_print(outf, base_level + 2, header, value);
		}

		if (fact_avx & 0x04) {
			snprintf(header, sizeof(header),
				 "high-priority-max-avx512-frequency(KHz)");
			snprintf(value, sizeof(value), "%d",
				 bucket_info[j].avx512_trl *
					 DISP_FREQ_MULTIPLIER);
			format_and_print(outf, base_level + 2, header, value);
		}
	}
	snprintf(header, sizeof(header),
		 "speed-select-turbo-freq-clip-frequencies");
	format_and_print(outf, base_level + 1, header, NULL);
	snprintf(header, sizeof(header), "low-priority-max-frequency(KHz)");
	snprintf(value, sizeof(value), "%d",
		 fact_info->lp_clipping_ratio_license_sse *
			 DISP_FREQ_MULTIPLIER);
	format_and_print(outf, base_level + 2, header, value);
	snprintf(header, sizeof(header),
		 "low-priority-max-avx2-frequency(KHz)");
	snprintf(value, sizeof(value), "%d",
		 fact_info->lp_clipping_ratio_license_avx2 *
			 DISP_FREQ_MULTIPLIER);
	format_and_print(outf, base_level + 2, header, value);
	snprintf(header, sizeof(header),
		 "low-priority-max-avx512-frequency(KHz)");
	snprintf(value, sizeof(value), "%d",
		 fact_info->lp_clipping_ratio_license_avx512 *
			 DISP_FREQ_MULTIPLIER);
	format_and_print(outf, base_level + 2, header, value);
}

void isst_ctdp_display_information(int cpu, FILE *outf, int tdp_level,
				   struct isst_pkg_ctdp *pkg_dev)
{
	char header[256];
	char value[256];
	int i, base_level = 1;

	print_packag_info(cpu, outf);

	for (i = 0; i <= pkg_dev->levels; ++i) {
		struct isst_pkg_ctdp_level_info *ctdp_level;
		int j;

		ctdp_level = &pkg_dev->ctdp_level[i];
		if (!ctdp_level->processed)
			continue;

		snprintf(header, sizeof(header), "perf-profile-level-%d",
			 ctdp_level->level);
		format_and_print(outf, base_level + 3, header, NULL);

		snprintf(header, sizeof(header), "cpu-count");
		j = get_cpu_count(get_physical_die_id(cpu),
				  get_physical_die_id(cpu));
		snprintf(value, sizeof(value), "%d", j);
		format_and_print(outf, base_level + 4, header, value);

		snprintf(header, sizeof(header), "enable-cpu-mask");
		printcpumask(sizeof(value), value,
			     ctdp_level->core_cpumask_size,
			     ctdp_level->core_cpumask);
		format_and_print(outf, base_level + 4, header, value);

		snprintf(header, sizeof(header), "thermal-design-power-ratio");
		snprintf(value, sizeof(value), "%d", ctdp_level->tdp_ratio);
		format_and_print(outf, base_level + 4, header, value);

		snprintf(header, sizeof(header), "base-frequency(KHz)");
		snprintf(value, sizeof(value), "%d",
			 ctdp_level->tdp_ratio * DISP_FREQ_MULTIPLIER);
		format_and_print(outf, base_level + 4, header, value);

		snprintf(header, sizeof(header),
			 "speed-select-turbo-freq-support");
		snprintf(value, sizeof(value), "%d", ctdp_level->fact_support);
		format_and_print(outf, base_level + 4, header, value);

		snprintf(header, sizeof(header),
			 "speed-select-base-freq-support");
		snprintf(value, sizeof(value), "%d", ctdp_level->pbf_support);
		format_and_print(outf, base_level + 4, header, value);

		snprintf(header, sizeof(header),
			 "speed-select-base-freq-enabled");
		snprintf(value, sizeof(value), "%d", ctdp_level->pbf_enabled);
		format_and_print(outf, base_level + 4, header, value);

		snprintf(header, sizeof(header),
			 "speed-select-turbo-freq-enabled");
		snprintf(value, sizeof(value), "%d", ctdp_level->fact_enabled);
		format_and_print(outf, base_level + 4, header, value);

		snprintf(header, sizeof(header), "thermal-design-power(W)");
		snprintf(value, sizeof(value), "%d", ctdp_level->pkg_tdp);
		format_and_print(outf, base_level + 4, header, value);

		snprintf(header, sizeof(header), "tjunction-max(C)");
		snprintf(value, sizeof(value), "%d", ctdp_level->t_proc_hot);
		format_and_print(outf, base_level + 4, header, value);

		snprintf(header, sizeof(header), "turbo-ratio-limits-sse");
		format_and_print(outf, base_level + 4, header, NULL);
		for (j = 0; j < 8; ++j) {
			snprintf(header, sizeof(header), "bucket-%d", j);
			format_and_print(outf, base_level + 5, header, NULL);

			snprintf(header, sizeof(header), "core-count");
			snprintf(value, sizeof(value), "%d", j);
			format_and_print(outf, base_level + 6, header, value);

			snprintf(header, sizeof(header), "turbo-ratio");
			snprintf(value, sizeof(value), "%d",
				 ctdp_level->trl_sse_active_cores[j]);
			format_and_print(outf, base_level + 6, header, value);
		}
		snprintf(header, sizeof(header), "turbo-ratio-limits-avx");
		format_and_print(outf, base_level + 4, header, NULL);
		for (j = 0; j < 8; ++j) {
			snprintf(header, sizeof(header), "bucket-%d", j);
			format_and_print(outf, base_level + 5, header, NULL);

			snprintf(header, sizeof(header), "core-count");
			snprintf(value, sizeof(value), "%d", j);
			format_and_print(outf, base_level + 6, header, value);

			snprintf(header, sizeof(header), "turbo-ratio");
			snprintf(value, sizeof(value), "%d",
				 ctdp_level->trl_avx_active_cores[j]);
			format_and_print(outf, base_level + 6, header, value);
		}

		snprintf(header, sizeof(header), "turbo-ratio-limits-avx512");
		format_and_print(outf, base_level + 4, header, NULL);
		for (j = 0; j < 8; ++j) {
			snprintf(header, sizeof(header), "bucket-%d", j);
			format_and_print(outf, base_level + 5, header, NULL);

			snprintf(header, sizeof(header), "core-count");
			snprintf(value, sizeof(value), "%d", j);
			format_and_print(outf, base_level + 6, header, value);

			snprintf(header, sizeof(header), "turbo-ratio");
			snprintf(value, sizeof(value), "%d",
				 ctdp_level->trl_avx_512_active_cores[j]);
			format_and_print(outf, base_level + 6, header, value);
		}
		if (ctdp_level->pbf_support)
			_isst_pbf_display_information(cpu, outf, i,
						      &ctdp_level->pbf_info,
						      base_level + 4);
		if (ctdp_level->fact_support)
			_isst_fact_display_information(cpu, outf, i, 0xff, 0xff,
						       &ctdp_level->fact_info,
						       base_level + 4);
	}

	format_and_print(outf, 1, NULL, NULL);
}

void isst_ctdp_display_information_start(FILE *outf)
{
	last_level = 0;
	format_and_print(outf, 0, "start", NULL);
}

void isst_ctdp_display_information_end(FILE *outf)
{
	format_and_print(outf, 0, NULL, NULL);
}

void isst_pbf_display_information(int cpu, FILE *outf, int level,
				  struct isst_pbf_info *pbf_info)
{
	print_packag_info(cpu, outf);
	_isst_pbf_display_information(cpu, outf, level, pbf_info, 4);
	format_and_print(outf, 1, NULL, NULL);
}

void isst_fact_display_information(int cpu, FILE *outf, int level,
				   int fact_bucket, int fact_avx,
				   struct isst_fact_info *fact_info)
{
	print_packag_info(cpu, outf);
	_isst_fact_display_information(cpu, outf, level, fact_bucket, fact_avx,
				       fact_info, 4);
	format_and_print(outf, 1, NULL, NULL);
}

void isst_clos_display_information(int cpu, FILE *outf, int clos,
				   struct isst_clos_config *clos_config)
{
	char header[256];
	char value[256];

	snprintf(header, sizeof(header), "package-%d",
		 get_physical_package_id(cpu));
	format_and_print(outf, 1, header, NULL);
	snprintf(header, sizeof(header), "die-%d", get_physical_die_id(cpu));
	format_and_print(outf, 2, header, NULL);
	snprintf(header, sizeof(header), "cpu-%d", cpu);
	format_and_print(outf, 3, header, NULL);

	snprintf(header, sizeof(header), "core-power");
	format_and_print(outf, 4, header, NULL);

	snprintf(header, sizeof(header), "clos");
	snprintf(value, sizeof(value), "%d", clos);
	format_and_print(outf, 5, header, value);

	snprintf(header, sizeof(header), "epp");
	snprintf(value, sizeof(value), "%d", clos_config->epp);
	format_and_print(outf, 5, header, value);

	snprintf(header, sizeof(header), "clos-proportional-priority");
	snprintf(value, sizeof(value), "%d", clos_config->clos_prop_prio);
	format_and_print(outf, 5, header, value);

	snprintf(header, sizeof(header), "clos-min");
	snprintf(value, sizeof(value), "%d", clos_config->clos_min);
	format_and_print(outf, 5, header, value);

	snprintf(header, sizeof(header), "clos-max");
	snprintf(value, sizeof(value), "%d", clos_config->clos_max);
	format_and_print(outf, 5, header, value);

	snprintf(header, sizeof(header), "clos-desired");
	snprintf(value, sizeof(value), "%d", clos_config->clos_desired);
	format_and_print(outf, 5, header, value);

	format_and_print(outf, 1, NULL, NULL);
}

void isst_display_result(int cpu, FILE *outf, char *feature, char *cmd,
			 int result)
{
	char header[256];
	char value[256];

	snprintf(header, sizeof(header), "package-%d",
		 get_physical_package_id(cpu));
	format_and_print(outf, 1, header, NULL);
	snprintf(header, sizeof(header), "die-%d", get_physical_die_id(cpu));
	format_and_print(outf, 2, header, NULL);
	snprintf(header, sizeof(header), "cpu-%d", cpu);
	format_and_print(outf, 3, header, NULL);
	snprintf(header, sizeof(header), "%s", feature);
	format_and_print(outf, 4, header, NULL);
	snprintf(header, sizeof(header), "%s", cmd);
	snprintf(value, sizeof(value), "%d", result);
	format_and_print(outf, 5, header, value);

	format_and_print(outf, 1, NULL, NULL);
}