1 // SPDX-License-Identifier: GPL-2.0
3  * Intel Speed Select -- Enumerate and control features
51 static int current_clos = -1;
52 static int clos_epp = -1;
53 static int clos_prop_prio = -1;
54 static int clos_min = -1;
55 static int clos_max = -1;
56 static int clos_desired = -1;
121 	/* only three CascadeLake-N models are supported */  in update_cpu_model()
130 			err(-1, "cannot open /proc/cpuinfo\n");  in update_cpu_model()
175 			return -1;  in parse_int_file()
211 		return -1;  in get_stored_topology_info()
219 		ret = -1;  in get_stored_topology_info()
261 			cpu_top.core_id = -1;  in store_cpu_topology()
266 			cpu_top.pkg_id = -1;  in store_cpu_topology()
271 			cpu_top.die_id = -1;  in store_cpu_topology()
366 		err(-1, "%s open failed", buffer);  in set_cpu_online_offline()
374 	if (ret == -1)  in set_cpu_online_offline()
603 		err(-1, "%s open failed", pathname);  in create_cpu_map()
614 		if (ioctl(fd, ISST_IF_GET_PHY_ID, &map) == -1) {  in create_cpu_map()
649 	return -EINVAL;  in find_logical_cpu()
690 	return -EINVAL;  in find_phy_core_num()
705 		err(-1, "%s open failed", pathname);  in isst_send_mmio_command()
718 	if (ioctl(fd, cmd, &io_regs) == -1) {  in isst_send_mmio_command()
802 		err(-1, "%s open failed", pathname);  in isst_send_mbox_command()
807 		if (ioctl(fd, ISST_IF_MBOX_COMMAND, &mbox_cmds) == -1) {  in isst_send_mbox_command()
816 			--retry;  in isst_send_mbox_command()
830 		return -1;  in isst_send_mbox_command()
845 		err(-1, "%s open failed", pathname);  in isst_send_msr_command()
854 	if (ioctl(fd, ISST_IF_MSR_COMMAND, &msr_cmds) == -1) {  in isst_send_msr_command()
879 		err(-1, "%s open failed", pathname);  in isst_fill_platform_info()
881 	if (ioctl(fd, ISST_IF_GET_PLATFORM_INFO, &isst_platform_info) == -1) {  in isst_fill_platform_info()
884 		return -1;  in isst_fill_platform_info()
891 		return -1;  in isst_fill_platform_info()
924 		fprintf(outf, "Intel(R) SST-PP (feature perf-profile) is supported\n");  in isst_print_extended_platform_info()
926 		fprintf(outf, "Intel(R) SST-PP (feature perf-profile) is not supported\n");  in isst_print_extended_platform_info()
948 		fprintf(outf, "Intel(R) SST-TF (feature turbo-freq) is supported\n");  in isst_print_extended_platform_info()
950 		fprintf(outf, "Intel(R) SST-TF (feature turbo-freq) is not supported\n");  in isst_print_extended_platform_info()
953 		fprintf(outf, "Intel(R) SST-BF (feature base-freq) is supported\n");  in isst_print_extended_platform_info()
955 		fprintf(outf, "Intel(R) SST-BF (feature base-freq) is not supported\n");  in isst_print_extended_platform_info()
959 		fprintf(outf, "Intel(R) SST-CP (feature core-power) is supported\n");  in isst_print_extended_platform_info()
961 		fprintf(outf, "Intel(R) SST-CP (feature core-power) is not supported\n");  in isst_print_extended_platform_info()
977 		err(-1, "%s open failed", pathname);  in isst_print_platform_information()
979 	if (ioctl(fd, ISST_IF_GET_PLATFORM_INFO, &platform_info) == -1) {  in isst_print_platform_information()
1041 _get_tdp_level("get-config-levels", levels, levels, "Max TDP level", NULL, NULL);
1042 _get_tdp_level("get-config-version", levels, version, "TDP version", NULL, NULL);
1043 _get_tdp_level("get-config-enabled", levels, enabled, "perf-profile enable status", "disabled", "en…
1044 _get_tdp_level("get-config-current_level", levels, current_level,
1046 _get_tdp_level("get-lock-status", levels, locked, "TDP lock status", "unlocked", "locked");
1060 		err(-1, "cannot open /proc/cpuinfo\n");  in clx_n_get_base_ratio()
1064 			/* this is true for CascadeLake-N */  in clx_n_get_base_ratio()
1067 			strncpy(number, begin, end - begin);  in clx_n_get_base_ratio()
1086 	pbf_info = &ctdp_level->pbf_info;  in clx_n_config()
1087 	ctdp_level->core_cpumask_size =  in clx_n_config()
1088 			alloc_cpu_set(&ctdp_level->core_cpumask);  in clx_n_config()
1091 	ctdp_level->tdp_ratio = clx_n_get_base_ratio();  in clx_n_config()
1092 	if (ctdp_level->tdp_ratio == 0) {  in clx_n_config()
1094 		ret = -1;  in clx_n_config()
1099 	pbf_info->p1_high = 0;  in clx_n_config()
1100 	pbf_info->p1_low = ~0;  in clx_n_config()
1113 		CPU_SET_S(i, ctdp_level->core_cpumask_size,  in clx_n_config()
1114 			  ctdp_level->core_cpumask);  in clx_n_config()
1119 		if (cpu_bf > pbf_info->p1_high)  in clx_n_config()
1120 			pbf_info->p1_high = cpu_bf;  in clx_n_config()
1121 		if (cpu_bf < pbf_info->p1_low)  in clx_n_config()
1122 			pbf_info->p1_low = cpu_bf;  in clx_n_config()
1125 	if (pbf_info->p1_high == ~0UL) {  in clx_n_config()
1127 		ret = -1;  in clx_n_config()
1131 	if (pbf_info->p1_low == 0) {  in clx_n_config()
1133 		ret = -1;  in clx_n_config()
1138 	pbf_info->p1_high = pbf_info->p1_high / 100000;  in clx_n_config()
1139 	pbf_info->p1_low = pbf_info->p1_low / 100000;  in clx_n_config()
1142 	pbf_info->core_cpumask_size = alloc_cpu_set(&pbf_info->core_cpumask);  in clx_n_config()
1155 		if (cpu_bf == pbf_info->p1_high)  in clx_n_config()
1156 			CPU_SET_S(i, pbf_info->core_cpumask_size,  in clx_n_config()
1157 				  pbf_info->core_cpumask);  in clx_n_config()
1161 	ctdp_level->processed = 1;  in clx_n_config()
1162 	ctdp_level->pbf_support = 1; /* PBF is always supported and enabled */  in clx_n_config()
1163 	ctdp_level->pbf_enabled = 1;  in clx_n_config()
1164 	ctdp_level->fact_support = 0; /* FACT is never supported */  in clx_n_config()
1165 	ctdp_level->fact_enabled = 0;  in clx_n_config()
1170 	free_cpu_set(ctdp_level->core_cpumask);  in clx_n_config()
1192 		pbf_info = &ctdp_level->pbf_info;  in dump_clx_n_config_for_cpu()
1195 		free_cpu_set(ctdp_level->core_cpumask);  in dump_clx_n_config_for_cpu()
1196 		free_cpu_set(pbf_info->core_cpumask);  in dump_clx_n_config_for_cpu()
1209 		isst_display_error_info_message(1, "Failed to get perf-profile info on cpu", 1, cpu);  in dump_isst_config_for_cpu()
1224 			"Print Intel(R) Speed Select Technology Performance profile configuration\n");  in dump_isst_config()
1227 		fprintf(stderr, "Optional: -l|--level : Specify tdp level\n");  in dump_isst_config()
1259 		isst_display_result(cpu, outf, "perf-profile", "set_tdp_level",  in set_tdp_level_for_cpu()
1297 			"\t Arguments: -l|--level : Specify tdp level\n");  in set_tdp_level()
1299 			"\t Optional Arguments: -o | online : online/offline for the tdp level\n");  in set_tdp_level()
1332 		pbf_info = &ctdp_level->pbf_info;  in clx_n_dump_pbf_config_for_cpu()
1334 		free_cpu_set(ctdp_level->core_cpumask);  in clx_n_dump_pbf_config_for_cpu()
1335 		free_cpu_set(pbf_info->core_cpumask);  in clx_n_dump_pbf_config_for_cpu()
1347 		isst_display_error_info_message(1, "Failed to get base-freq info at this level", 1, tdp_level);  in dump_pbf_config_for_cpu()
1362 			"Print Intel(R) Speed Select Technology base frequency configuration for a TDP level\n");  in dump_pbf_config()
1364 			"\tArguments: -l|--level : Specify tdp level\n");  in dump_pbf_config()
1430 	if (ret == -1) {  in set_cpufreq_scaling_min_max()
1453 	pbf_info = &ctdp_level->pbf_info;  in set_clx_pbf_cpufreq_scaling_min_max()
1454 	freq_high = pbf_info->p1_high * 100000;  in set_clx_pbf_cpufreq_scaling_min_max()
1455 	freq_low = pbf_info->p1_low * 100000;  in set_clx_pbf_cpufreq_scaling_min_max()
1464 		if (CPU_ISSET_S(i, pbf_info->core_cpumask_size,  in set_clx_pbf_cpufreq_scaling_min_max()
1465 				  pbf_info->core_cpumask))  in set_clx_pbf_cpufreq_scaling_min_max()
1483 		return -1;  in set_cpufreq_scaling_min_max_from_cpuinfo()
1515 	if (ret == -1) {  in set_cpufreq_scaling_min_max_from_cpuinfo()
1576 		return -1;  in set_core_priority_and_min()
1690 …isst_display_error_info_message(1, "base-freq feature is not present at this level", 1, pkg_dev.cu…  in set_pbf_for_cpu()
1691 		ret = -1;  in set_pbf_for_cpu()
1720 		isst_display_result(cpu, outf, "base-freq", "enable",  in set_pbf_for_cpu()
1723 		isst_display_result(cpu, outf, "base-freq", "disable",  in set_pbf_for_cpu()
1734 				"Enable Intel Speed Select Technology base frequency feature\n");  in set_pbf_enable()
1744 				"\tOptional Arguments: -a|--auto : Use priority of cores to set core-power associations\n");  in set_pbf_enable()
1755 				"Disable Intel Speed Select Technology base frequency feature\n");  in set_pbf_enable()
1757 				"\tOptional Arguments: -a|--auto : Also disable core-power associations\n");  in set_pbf_enable()
1780 		isst_display_error_info_message(1, "Failed to get turbo-freq info at this level", 1, tdp_level);  in dump_fact_config_for_cpu()
1793 …"Print complete Intel Speed Select Technology turbo frequency configuration for a TDP level. Other…  in dump_fact_config()
1795 			"\tArguments: -l|--level : Specify tdp level\n");  in dump_fact_config()
1797 			"\tArguments: -b|--bucket : Bucket index to dump\n");  in dump_fact_config()
1799 			"\tArguments: -r|--trl-type : Specify trl type: sse|avx2|avx512\n");  in dump_fact_config()
1839 …isst_display_error_info_message(1, "turbo-freq feature is not present at this level", 1, pkg_dev.c…  in set_fact_for_cpu()
1840 		ret = -1;  in set_fact_for_cpu()
1875 		isst_display_result(cpu, outf, "turbo-freq", "enable", ret);  in set_fact_for_cpu()
1881 		isst_display_result(cpu, outf, "turbo-freq", "disable", ret);  in set_fact_for_cpu()
1892 				"Enable Intel Speed Select Technology Turbo frequency feature\n");  in set_fact_enable()
1894 				"Optional: -t|--trl : Specify turbo ratio limit\n");  in set_fact_enable()
1896 				"\tOptional Arguments: -a|--auto : Designate specified target CPUs with");  in set_fact_enable()
1898 				"-C|--cpu option as as high priority using core-power feature\n");  in set_fact_enable()
1901 				"Disable Intel Speed Select Technology turbo frequency feature\n");  in set_fact_enable()
1903 				"Optional: -t|--trl : Specify turbo ratio limit\n");  in set_fact_enable()
1905 				"\tOptional Arguments: -a|--auto : Also disable core-power associations\n");  in set_fact_enable()
1987 		isst_display_result(-1, outf, "turbo-freq --auto", "enable", 0);  in set_fact_enable()
1993 	isst_display_result(i, outf, "turbo-freq --auto", "enable", ret);  in set_fact_enable()
2011 		isst_display_result(cpu, outf, "core-power", "enable",  in enable_clos_qos_config()
2014 		isst_display_result(cpu, outf, "core-power", "disable",  in enable_clos_qos_config()
2025 				"Enable core-power for a package/die\n");  in set_clos_enable()
2028 					"\tClos Enable: Specify priority type with [--priority|-p]\n");  in set_clos_enable()
2033 				"Disable core-power: [No command arguments are required]\n");  in set_clos_enable()
2040 			"cpufreq subsystem and core-power enable will interfere with each other!\n");  in set_clos_enable()
2071 			"Print Intel Speed Select Technology core power configuration\n");  in dump_clos_config()
2073 			"\tArguments: [-c | --clos]: Specify clos id\n");  in dump_clos_config()
2113 			"Print Intel Speed Select Technology core power information\n");  in dump_clos_info()
2114 		fprintf(stderr, "\t Optionally specify targeted cpu id with [--cpu|-c]\n");  in dump_clos_info()
2147 		isst_display_result(cpu, outf, "core-power", "config", ret);  in set_clos_config_for_cpu()
2154 			"Set core-power configuration for one of the four clos ids\n");  in set_clos_config()
2156 			"\tSpecify targeted clos id with [--clos|-c]\n");  in set_clos_config()
2158 			fprintf(stderr, "\tSpecify clos EPP with [--epp|-e]\n");  in set_clos_config()
2160 				"\tSpecify clos Proportional Priority [--weight|-w]\n");  in set_clos_config()
2162 		fprintf(stderr, "\tSpecify clos min in MHz with [--min|-n]\n");  in set_clos_config()
2163 		fprintf(stderr, "\tSpecify clos max in MHz with [--max|-m]\n");  in set_clos_config()
2212 		isst_display_result(cpu, outf, "core-power", "assoc", ret);  in set_clos_assoc_for_cpu()
2220 			"\tSpecify targeted clos id with [--clos|-c]\n");  in set_clos_assoc()
2224 			"\tintel-speed-select --cpu 0 core-power assoc --clos 1\n");  in set_clos_assoc()
2236 		isst_display_error_info_message(1, "Invalid target cpu. Specify with [-c|--cpu]", 0, 0);  in set_clos_assoc()
2256 		fprintf(stderr, "\tSpecify targeted cpu id with [--cpu|-c]\n");  in get_clos_assoc()
2261 		isst_display_error_info_message(1, "Invalid target cpu. Specify with [-c|--cpu]", 0, 0);  in get_clos_assoc()
2272 	{ "perf-profile", "info", dump_isst_config, 0 },
2273 	{ "base-freq", "info", dump_pbf_config, 0 },
2274 	{ "base-freq", "enable", set_pbf_enable, 1 },
2275 	{ "base-freq", "disable", set_pbf_enable, 0 },
2280 	{ "perf-profile", "get-lock-status", get_tdp_locked, 0 },
2281 	{ "perf-profile", "get-config-levels", get_tdp_levels, 0 },
2282 	{ "perf-profile", "get-config-version", get_tdp_version, 0 },
2283 	{ "perf-profile", "get-config-enabled", get_tdp_enabled, 0 },
2284 	{ "perf-profile", "get-config-current-level", get_tdp_current_level,
2286 	{ "perf-profile", "set-config-level", set_tdp_level, 0 },
2287 	{ "perf-profile", "info", dump_isst_config, 0 },
2288 	{ "base-freq", "info", dump_pbf_config, 0 },
2289 	{ "base-freq", "enable", set_pbf_enable, 1 },
2290 	{ "base-freq", "disable", set_pbf_enable, 0 },
2291 	{ "turbo-freq", "info", dump_fact_config, 0 },
2292 	{ "turbo-freq", "enable", set_fact_enable, 1 },
2293 	{ "turbo-freq", "disable", set_fact_enable, 0 },
2294 	{ "core-power", "info", dump_clos_info, 0 },
2295 	{ "core-power", "enable", set_clos_enable, 1 },
2296 	{ "core-power", "disable", set_clos_enable, 0 },
2297 	{ "core-power", "config", set_clos_config, 0 },
2298 	{ "core-power", "get-config", dump_clos_config, 0 },
2299 	{ "core-power", "assoc", set_clos_assoc, 0 },
2300 	{ "core-power", "get-assoc", get_clos_assoc, 0 },
2306  * 1,2,4..6,8-10 and set bits in cpu_subset
2316 		if (*next == '-') /* no negative cpu numbers */  in parse_cpu_command()
2332 		if (*next == '-') {  in parse_cpu_command()
2368 	fprintf(stderr, "\"--cpu %s\" malformed\n", optarg);  in parse_cpu_command()
2369 	exit(-1);  in parse_cpu_command()
2381 		{ "trl-type", required_argument, 0, 'r' },  in parse_cmd_args()
2399 				  long_options, &option_index)) != -1) {  in parse_cmd_args()
2479 	printf("perf-profile:\tAn architectural mechanism that allows multiple optimized \n\  in isst_help()
2483 	printf("\nCommands : For feature=perf-profile\n");  in isst_help()
2487 		printf("\tget-lock-status\n");  in isst_help()
2488 		printf("\tget-config-levels\n");  in isst_help()
2489 		printf("\tget-config-version\n");  in isst_help()
2490 		printf("\tget-config-enabled\n");  in isst_help()
2491 		printf("\tget-config-current-level\n");  in isst_help()
2492 		printf("\tset-config-level\n");  in isst_help()
2498 	printf("base-freq:\tEnables users to increase guaranteed base frequency\n\  in pbf_help()
2508 	printf("turbo-freq:\tEnables the ability to set different turbo ratio\n\  in fact_help()
2510 	printf("\nCommand: For feature=turbo-freq\n");  in fact_help()
2518 	printf("core-power:\tInterface that allows user to define per core/tile\n\  in core_power_help()
2520 	printf("\nCommands : For feature=core-power\n");  in core_power_help()
2525 	printf("\tget-config\n");  in core_power_help()
2527 	printf("\tget-assoc\n");  in core_power_help()
2536 	{ "perf-profile", isst_help },
2537 	{ "base-freq", pbf_help },
2538 	{ "turbo-freq", fact_help },
2539 	{ "core-power", core_power_help },
2544 	{ "perf-profile", isst_help },
2545 	{ "base-freq", pbf_help },
2561 	if (!strcmp(cmd, "-h") || !strcmp(cmd, "--help")) {  in process_command()
2593 		fprintf(stderr, "\nThere is limited support of Intel Speed Select features on this platform.\n");  in usage()
2594 …fprintf(stderr, "Everything is pre-configured using BIOS options, this tool can't enable any featu…  in usage()
2598 	printf("intel-speed-select [OPTIONS] FEATURE COMMAND COMMAND_ARGUMENTS\n");  in usage()
2599 	printf("\nUse this tool to enumerate and control the Intel Speed Select Technology features:\n");  in usage()
2601 		printf("\nFEATURE : [perf-profile|base-freq]\n");  in usage()
2603 		printf("\nFEATURE : [perf-profile|base-freq|turbo-freq|core-power]\n");  in usage()
2604 	printf("\nFor help on each feature, use -h|--help\n");  in usage()
2605 	printf("\tFor example:  intel-speed-select perf-profile -h\n");  in usage()
2607 	printf("\nFor additional help on each command for a feature, use --h|--help\n");  in usage()
2608 	printf("\tFor example:  intel-speed-select perf-profile get-lock-status -h\n");  in usage()
2609 …printf("\t\t This will print help for the command \"get-lock-status\" for the feature \"perf-profi…  in usage()
2612 	printf("\t[-c|--cpu] : logical cpu number\n");  in usage()
2615 	printf("\t[-d|--debug] : Debug mode\n");  in usage()
2616 	printf("\t[-f|--format] : output format [json|text]. Default: text\n");  in usage()
2617 	printf("\t[-h|--help] : Print help\n");  in usage()
2618 	printf("\t[-i|--info] : Print platform information\n");  in usage()
2619 	printf("\t[-o|--out] : Output file\n");  in usage()
2621 	printf("\t[-p|--pause] : Delay between two mail box commands in milliseconds\n");  in usage()
2622 	printf("\t[-r|--retry] : Retry count for mail box commands on failure, default 3\n");  in usage()
2623 	printf("\t[-v|--version] : Print version\n");  in usage()
2632 	printf("\t\tintel-speed-select --info\n");  in usage()
2633 	printf("\tTo get full perf-profile information dump:\n");  in usage()
2634 	printf("\t\tintel-speed-select perf-profile info\n");  in usage()
2635 	printf("\tTo get full base-freq information dump:\n");  in usage()
2636 	printf("\t\tintel-speed-select base-freq info -l 0\n");  in usage()
2638 		printf("\tTo get full turbo-freq information dump:\n");  in usage()
2639 		printf("\t\tintel-speed-select turbo-freq info -l 0\n");  in usage()
2680 		err(-1, "Invalid CPU model (%d)\n", cpu_model);  in cmdline()
2681 	printf("Intel(R) Speed Select Technology\n");  in cmdline()
2687 			fprintf(stderr, "Intel speed select drivers are not loaded on this system.\n");  in cmdline()
2697 				       &option_index)) != -1) {  in cmdline()
2743 	if (optind > (argc - 2)) {  in cmdline()