Commit 006050a6 authored by Srinivas Pandruvada's avatar Srinivas Pandruvada
Browse files

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: default avatarSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
parent 60accc01

tools/power/x86/intel-speed-select/isst-config.c

+61 −1
Original line number Diff line number Diff line
@@ -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");