diff options
| author | Huang Rui <ray.huang@amd.com> | 2022-02-22 18:34:25 +0300 |
|---|---|---|
| committer | Shuah Khan <skhan@linuxfoundation.org> | 2022-02-23 04:37:12 +0300 |
| commit | d8363e29178249bb505ae388ce1658484396fcde (patch) | |
| tree | d3d99102548486f6f52b8e70952f1efa927ac088 /tools/power/cpupower/utils/helpers/amd.c | |
| parent | 35fdf42d90d09d2d00ef65999fe338027a6b4d8e (diff) | |
| download | linux-d8363e29178249bb505ae388ce1658484396fcde.tar.xz | |
cpupower: Add function to print AMD P-State performance capabilities
AMD P-State kernel module is using the fine grain frequency instead of
acpi hardware pstate. So add a function to print performance and
frequency values.
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'tools/power/cpupower/utils/helpers/amd.c')
| -rw-r--r-- | tools/power/cpupower/utils/helpers/amd.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/tools/power/cpupower/utils/helpers/amd.c b/tools/power/cpupower/utils/helpers/amd.c index f5ba528dc7db..c519cc89c97f 100644 --- a/tools/power/cpupower/utils/helpers/amd.c +++ b/tools/power/cpupower/utils/helpers/amd.c @@ -193,5 +193,34 @@ void amd_pstate_boost_init(unsigned int cpu, int *support, int *active) *active = cpuinfo_max == amd_pstate_max ? 1 : 0; } +void amd_pstate_show_perf_and_freq(unsigned int cpu, int no_rounding) +{ + printf(_(" AMD PSTATE Highest Performance: %lu. Maximum Frequency: "), + amd_pstate_get_data(cpu, AMD_PSTATE_HIGHEST_PERF)); + /* + * If boost isn't active, the cpuinfo_max doesn't indicate real max + * frequency. So we read it back from amd-pstate sysfs entry. + */ + print_speed(amd_pstate_get_data(cpu, AMD_PSTATE_MAX_FREQ), no_rounding); + printf(".\n"); + + printf(_(" AMD PSTATE Nominal Performance: %lu. Nominal Frequency: "), + acpi_cppc_get_data(cpu, NOMINAL_PERF)); + print_speed(acpi_cppc_get_data(cpu, NOMINAL_FREQ) * 1000, + no_rounding); + printf(".\n"); + + printf(_(" AMD PSTATE Lowest Non-linear Performance: %lu. Lowest Non-linear Frequency: "), + acpi_cppc_get_data(cpu, LOWEST_NONLINEAR_PERF)); + print_speed(amd_pstate_get_data(cpu, AMD_PSTATE_LOWEST_NONLINEAR_FREQ), + no_rounding); + printf(".\n"); + + printf(_(" AMD PSTATE Lowest Performance: %lu. Lowest Frequency: "), + acpi_cppc_get_data(cpu, LOWEST_PERF)); + print_speed(acpi_cppc_get_data(cpu, LOWEST_FREQ) * 1000, no_rounding); + printf(".\n"); +} + /* AMD P-State Helper Functions ************************************/ #endif /* defined(__i386__) || defined(__x86_64__) */ |