From 006050a6bd5ee4febf35478bfafb0764a609890a Mon Sep 17 00:00:00 2001 From: Srinivas Pandruvada Date: Mon, 21 Dec 2020 04:57:33 -0800 Subject: [PATCH] tools/power/x86/intel-speed-select: Add new command turbo-mode Add a new command "turbo-mode", which allows to enable/disable turbo mode globally. This uses base-frequency as the max frequency when turbo-mode is disabled. This allows soft disable turbo mode without depending on kernel or BIOS. Signed-off-by: Srinivas Pandruvada --- .../x86/intel-speed-select/isst-config.c | 62 ++++++++++++++++++- 1 file changed, 61 insertions(+), 1 deletion(-) diff --git a/tools/power/x86/intel-speed-select/isst-config.c b/tools/power/x86/intel-speed-select/isst-config.c index 09cb3a6672f3..3d6bfe4f7caa 100644 --- a/tools/power/x86/intel-speed-select/isst-config.c +++ b/tools/power/x86/intel-speed-select/isst-config.c @@ -2304,6 +2304,55 @@ static void get_clos_assoc(int arg) isst_ctdp_display_information_end(outf); } +static void set_turbo_mode_for_cpu(int cpu, int status) +{ + int base_freq; + + if (status) { + base_freq = get_cpufreq_base_freq(cpu); + set_cpufreq_scaling_min_max(cpu, 1, base_freq); + } else { + set_scaling_max_to_cpuinfo_max(cpu); + } + + if (status) { + isst_display_result(cpu, outf, "turbo-mode", "enable", 0); + } else { + isst_display_result(cpu, outf, "turbo-mode", "disable", 0); + } +} + +static void set_turbo_mode(int arg) +{ + int i, enable = arg; + + if (cmd_help) { + if (enable) + fprintf(stderr, "Set turbo mode enable\n"); + else + fprintf(stderr, "Set turbo mode disable\n"); + exit(0); + } + + isst_ctdp_display_information_start(outf); + + for (i = 0; i < topo_max_cpus; ++i) { + int online; + + if (i) + online = parse_int_file( + 1, "/sys/devices/system/cpu/cpu%d/online", i); + else + online = + 1; /* online entry for CPU 0 needs some special configs */ + + if (online) + set_turbo_mode_for_cpu(i, enable); + + } + isst_ctdp_display_information_end(outf); +} + static struct process_cmd_struct clx_n_cmds[] = { { "perf-profile", "info", dump_isst_config, 0 }, { "base-freq", "info", dump_pbf_config, 0 }, @@ -2334,6 +2383,8 @@ static struct process_cmd_struct isst_cmds[] = { { "core-power", "get-config", dump_clos_config, 0 }, { "core-power", "assoc", set_clos_assoc, 0 }, { "core-power", "get-assoc", get_clos_assoc, 0 }, + { "turbo-mode", "enable", set_turbo_mode, 0 }, + { "turbo-mode", "disable", set_turbo_mode, 1 }, { NULL, NULL, NULL } }; @@ -2549,6 +2600,14 @@ static void fact_help(void) printf("\tcommand : disable\n"); } +static void turbo_mode_help(void) +{ + printf("turbo-mode:\tEnables users to enable/disable turbo mode by adjusting frequency settings\n"); + printf("\tcommand : enable\n"); + printf("\tcommand : disable\n"); +} + + static void core_power_help(void) { printf("core-power:\tInterface that allows user to define per core/tile\n\ @@ -2573,6 +2632,7 @@ static struct process_cmd_help_struct isst_help_cmds[] = { { "base-freq", pbf_help }, { "turbo-freq", fact_help }, { "core-power", core_power_help }, + { "turbo-mode", turbo_mode_help }, { NULL, NULL } }; @@ -2636,7 +2696,7 @@ static void usage(void) if (is_clx_n_platform()) printf("\nFEATURE : [perf-profile|base-freq]\n"); else - printf("\nFEATURE : [perf-profile|base-freq|turbo-freq|core-power]\n"); + printf("\nFEATURE : [perf-profile|base-freq|turbo-freq|core-power|turbo-mode]\n"); printf("\nFor help on each feature, use -h|--help\n"); printf("\tFor example: intel-speed-select perf-profile -h\n");