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tools/power/x86/intel-speed-select: Avoid setting duplicate tdp level 

If the new TDP level requetsted is same as the current TDP level, don't
call into driver to change level.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
[srinivas.pandruvada@linux.intel.com: changelog edits]
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
This commit is contained in:
Zhang Rui 2023-02-02 15:55:25 +08:00 committed by Srinivas Pandruvada
parent c7ff8ff3b2
commit 14f0cf6cfa
1 changed files with 43 additions and 30 deletions
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73
tools/power/x86/intel-speed-select/isst-config.c
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@ -1229,46 +1229,59 @@ static void adjust_scaling_max_from_base_freq(int cpu);
static void set_tdp_level_for_cpu(struct isst_id *id, void *arg1, void *arg2, void *arg3,
void *arg4)
{
struct isst_pkg_ctdp pkg_dev;
int ret;
ret = isst_get_ctdp_levels(id, &pkg_dev);
if (ret) {
isst_display_error_info_message(1, "Get TDP level failed", 0, 0);
isst_ctdp_display_information_end(outf);
exit(1);
}
if (pkg_dev.current_level == tdp_level) {
debug_printf("TDP level already set. Skipped\n");
goto display_result;
}
ret = isst_set_tdp_level(id, tdp_level);
if (ret) {
isst_display_error_info_message(1, "Set TDP level failed", 0, 0);
isst_ctdp_display_information_end(outf);
exit(1);
} else {
isst_display_result(id, outf, "perf-profile", "set_tdp_level",
ret);
if (force_online_offline) {
struct isst_pkg_ctdp_level_info ctdp_level;
}
/* Wait for updated base frequencies */
usleep(2000);
display_result:
isst_display_result(id, outf, "perf-profile", "set_tdp_level", ret);
if (force_online_offline) {
struct isst_pkg_ctdp_level_info ctdp_level;
/* Adjusting uncore freq */
isst_adjust_uncore_freq(id, tdp_level, &ctdp_level);
/* Wait for updated base frequencies */
usleep(2000);
fprintf(stderr, "Option is set to online/offline\n");
ctdp_level.core_cpumask_size =
alloc_cpu_set(&ctdp_level.core_cpumask);
ret = isst_get_coremask_info(id, tdp_level, &ctdp_level);
if (ret) {
isst_display_error_info_message(1, "Can't get coremask, online/offline option is ignored", 0, 0);
return;
}
if (ctdp_level.cpu_count) {
int i, max_cpus = get_topo_max_cpus();
for (i = 0; i < max_cpus; ++i) {
if (!is_cpu_in_power_domain(i, id))
continue;
if (CPU_ISSET_S(i, ctdp_level.core_cpumask_size, ctdp_level.core_cpumask)) {
fprintf(stderr, "online cpu %d\n", i);
set_cpu_online_offline(i, 1);
adjust_scaling_max_from_base_freq(i);
} else {
fprintf(stderr, "offline cpu %d\n", i);
set_cpu_online_offline(i, 0);
}
/* Adjusting uncore freq */
isst_adjust_uncore_freq(id, tdp_level, &ctdp_level);
fprintf(stderr, "Option is set to online/offline\n");
ctdp_level.core_cpumask_size =
alloc_cpu_set(&ctdp_level.core_cpumask);
ret = isst_get_coremask_info(id, tdp_level, &ctdp_level);
if (ret) {
isst_display_error_info_message(1, "Can't get coremask, online/offline option is ignored", 0, 0);
return;
}
if (ctdp_level.cpu_count) {
int i, max_cpus = get_topo_max_cpus();
for (i = 0; i < max_cpus; ++i) {
if (!is_cpu_in_power_domain(i, id))
continue;
if (CPU_ISSET_S(i, ctdp_level.core_cpumask_size, ctdp_level.core_cpumask)) {
fprintf(stderr, "online cpu %d\n", i);
set_cpu_online_offline(i, 1);
adjust_scaling_max_from_base_freq(i);
} else {
fprintf(stderr, "offline cpu %d\n", i);
set_cpu_online_offline(i, 0);
}
}
}