tools/power turbostat: CPUID(0x16) leaf shows base, max, and bus frequency
This CPUID leaf is available on Skylake: CPUID(0x16): base_mhz: 1500 max_mhz: 2200 bus_mhz: 100 Signed-off-by: Len Brown <len.brown@intel.com>
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@ -2688,7 +2688,7 @@ void decode_misc_enable_msr(void)
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void process_cpuid()
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{
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unsigned int eax, ebx, ecx, edx, max_level;
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unsigned int eax, ebx, ecx, edx, max_level, max_extended_level;
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unsigned int fms, family, model, stepping;
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eax = ebx = ecx = edx = 0;
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@ -2732,9 +2732,9 @@ void process_cpuid()
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* This check is valid for both Intel and AMD.
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*/
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ebx = ecx = edx = 0;
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__get_cpuid(0x80000000, &max_level, &ebx, &ecx, &edx);
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__get_cpuid(0x80000000, &max_extended_level, &ebx, &ecx, &edx);
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if (max_level >= 0x80000007) {
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if (max_extended_level >= 0x80000007) {
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/*
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* Non-Stop TSC is advertised by CPUID.EAX=0x80000007: EDX.bit8
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@ -2765,7 +2765,7 @@ void process_cpuid()
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if (debug)
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decode_misc_enable_msr();
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if (max_level > 0x15) {
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if (max_level >= 0x15) {
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unsigned int eax_crystal;
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unsigned int ebx_tsc;
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@ -2799,6 +2799,19 @@ void process_cpuid()
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}
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}
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}
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if (max_level >= 0x16) {
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unsigned int base_mhz, max_mhz, bus_mhz, edx;
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/*
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* CPUID 16H Base MHz, Max MHz, Bus MHz
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*/
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base_mhz = max_mhz = bus_mhz = edx = 0;
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__get_cpuid(0x16, &base_mhz, &max_mhz, &bus_mhz, &edx);
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if (debug)
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fprintf(stderr, "CPUID(0x16): base_mhz: %d max_mhz: %d bus_mhz: %d\n",
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base_mhz, max_mhz, bus_mhz);
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}
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if (has_aperf)
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aperf_mperf_multiplier = get_aperf_mperf_multiplier(family, model);
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@ -3151,7 +3164,7 @@ int get_and_dump_counters(void)
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}
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void print_version() {
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fprintf(stderr, "turbostat version 4.8 26-Sep, 2015"
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fprintf(stderr, "turbostat version 4.9 22 Nov, 2015"
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" - Len Brown <lenb@kernel.org>\n");
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}
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