From 538d505fde20393bce1e6fb95cec82b56cdd22ef Mon Sep 17 00:00:00 2001 From: Patryk Wlazlyn Date: Mon, 22 Jan 2024 15:22:35 +0100 Subject: 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 Signed-off-by: Len Brown --- tools/power/x86/turbostat/turbostat.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'tools') diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index a4a40a6e1b957..c35c48b6a99a7 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); -- cgit 1.2.3-korg