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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 <srinivas.pandruvada@linux.intel.com>
This commit is contained in:
Srinivas Pandruvada 2020-12-21 04:57:33 -08:00
parent 60accc011a
commit 006050a6bd
1 changed files with 61 additions and 1 deletions
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62
tools/power/x86/intel-speed-select/isst-config.c
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@ -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");