diff options
| author | Len Brown <len.brown@intel.com> | 2025-09-19 15:35:07 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2025-09-25 23:12:01 -0400 |
| commit | f8241f5426eb9feb46a007341edd221ceaf73073 (patch) | |
| tree | 03f1b0d0955dfa6758233ee4e012e60c84713294 /tools | |
| parent | 8ef8fa829f8ad313f18d694c15874f85d693215d (diff) | |
tools/power x86_energy_perf_policy: EPB access is only via sysfs
Comprehend that EPB writes are now only via sysfs
by moving it out of the _msr specific path.
No functional change.
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.c | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.c b/tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.c index ce6fb8080105..fe10057bf9b7 100644 --- a/tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.c +++ b/tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.c @@ -1182,19 +1182,23 @@ int enable_hwp_on_cpu(int cpu) return 0; } -int update_cpu_msrs(int cpu) +int update_cpu_epb_sysfs(int cpu) { - unsigned long long msr; int epb; - if (update_epb) { - epb = get_epb_sysfs(cpu); - set_epb_sysfs(cpu, new_epb); + epb = get_epb_sysfs(cpu); + set_epb_sysfs(cpu, new_epb); - if (verbose) - printf("cpu%d: ENERGY_PERF_BIAS old: %d new: %d\n", - cpu, epb, (unsigned int) new_epb); - } + if (verbose) + printf("cpu%d: ENERGY_PERF_BIAS old: %d new: %d\n", + cpu, epb, (unsigned int) new_epb); + + return 0; +} + +int update_cpu_msrs(int cpu) +{ + unsigned long long msr; if (update_turbo) { int turbo_is_present_and_disabled; @@ -1584,8 +1588,11 @@ int main(int argc, char **argv) /* update CPU set */ if (cpu_selected_set) { + if (update_epb) + for_all_cpus_in_set(cpu_setsize, cpu_selected_set, update_cpu_epb_sysfs); for_all_cpus_in_set(cpu_setsize, cpu_selected_set, update_sysfs); for_all_cpus_in_set(cpu_setsize, cpu_selected_set, update_cpu_msrs); + } else if (pkg_selected_set) for_packages(pkg_selected_set, update_hwp_request_pkg_msr); |