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| author | Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com> | 2024-01-22 15:22:35 +0100 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2024-04-02 18:50:02 +0200 |
| commit | 538d505fde20393bce1e6fb95cec82b56cdd22ef (patch) | |
| tree | d71cc50d3a0aeb1bc59964bc153fc1f1ae238788 /tools | |
| parent | tools/power turbostat: Print ucode revision only if valid (diff) | |
| download | linux-538d505fde20393bce1e6fb95cec82b56cdd22ef.tar.xz linux-538d505fde20393bce1e6fb95cec82b56cdd22ef.zip | |
tools/power turbostat: Read base_hz and bclk from CPUID.16H if available
If MSRs cannot be read, values can be obtained from cpuid.
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/power/x86/turbostat/turbostat.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index a4a40a6e1b95..c35c48b6a99a 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -5848,6 +5848,15 @@ void process_cpuid() base_mhz = max_mhz = bus_mhz = edx = 0; __cpuid(0x16, base_mhz, max_mhz, bus_mhz, edx); + + bclk = bus_mhz; + + base_hz = base_mhz * 1000000; + has_base_hz = 1; + + if (platform->enable_tsc_tweak) + tsc_tweak = base_hz / tsc_hz; + if (!quiet) fprintf(outf, "CPUID(0x16): base_mhz: %d max_mhz: %d bus_mhz: %d\n", base_mhz, max_mhz, bus_mhz); |