tools/power turbostat: fix decoding for GLM, DNV, SKX turbo-ratio limits
Newer processors do not hard-code the the number of cpus in each bin to {1, 2, 3, 4, 5, 6, 7, 8} Rather, they can specify any number of CPUS in each of the 8 bins: eg. ... 37 * 100.0 = 3600.0 MHz max turbo 4 active cores 38 * 100.0 = 3700.0 MHz max turbo 3 active cores 39 * 100.0 = 3800.0 MHz max turbo 2 active cores 39 * 100.0 = 3900.0 MHz max turbo 1 active cores could now look something like this: ... 37 * 100.0 = 3600.0 MHz max turbo 16 active cores 38 * 100.0 = 3700.0 MHz max turbo 8 active cores 39 * 100.0 = 3800.0 MHz max turbo 4 active cores 39 * 100.0 = 3900.0 MHz max turbo 2 active cores Signed-off-by: Len Brown <len.brown@intel.com>
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@ -1671,56 +1671,84 @@ dump_ivt_turbo_ratio_limits(void)
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ratio, bclk, ratio * bclk);
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return;
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}
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int has_turbo_ratio_group_limits(int family, int model)
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{
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if (!genuine_intel)
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return 0;
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switch (model) {
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case INTEL_FAM6_ATOM_GOLDMONT:
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case INTEL_FAM6_SKYLAKE_X:
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case INTEL_FAM6_ATOM_DENVERTON:
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return 1;
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}
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return 0;
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}
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static void
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dump_nhm_turbo_ratio_limits(void)
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dump_turbo_ratio_limits(int family, int model)
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{
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unsigned long long msr;
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unsigned int ratio;
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unsigned long long msr, core_counts;
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unsigned int ratio, group_size;
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get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT, &msr);
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fprintf(outf, "cpu%d: MSR_TURBO_RATIO_LIMIT: 0x%08llx\n", base_cpu, msr);
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if (has_turbo_ratio_group_limits(family, model)) {
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get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT1, &core_counts);
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fprintf(outf, "cpu%d: MSR_TURBO_RATIO_LIMIT1: 0x%08llx\n", base_cpu, core_counts);
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} else {
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core_counts = 0x0807060504030201;
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}
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ratio = (msr >> 56) & 0xFF;
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group_size = (core_counts >> 56) & 0xFF;
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if (ratio)
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fprintf(outf, "%d * %.1f = %.1f MHz max turbo 8 active cores\n",
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ratio, bclk, ratio * bclk);
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fprintf(outf, "%d * %.1f = %.1f MHz max turbo %d active cores\n",
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ratio, bclk, ratio * bclk, group_size);
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ratio = (msr >> 48) & 0xFF;
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group_size = (core_counts >> 48) & 0xFF;
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if (ratio)
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fprintf(outf, "%d * %.1f = %.1f MHz max turbo 7 active cores\n",
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ratio, bclk, ratio * bclk);
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fprintf(outf, "%d * %.1f = %.1f MHz max turbo %d active cores\n",
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ratio, bclk, ratio * bclk, group_size);
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ratio = (msr >> 40) & 0xFF;
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group_size = (core_counts >> 40) & 0xFF;
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if (ratio)
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fprintf(outf, "%d * %.1f = %.1f MHz max turbo 6 active cores\n",
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ratio, bclk, ratio * bclk);
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fprintf(outf, "%d * %.1f = %.1f MHz max turbo %d active cores\n",
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ratio, bclk, ratio * bclk, group_size);
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ratio = (msr >> 32) & 0xFF;
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group_size = (core_counts >> 32) & 0xFF;
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if (ratio)
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fprintf(outf, "%d * %.1f = %.1f MHz max turbo 5 active cores\n",
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ratio, bclk, ratio * bclk);
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fprintf(outf, "%d * %.1f = %.1f MHz max turbo %d active cores\n",
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ratio, bclk, ratio * bclk, group_size);
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ratio = (msr >> 24) & 0xFF;
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group_size = (core_counts >> 24) & 0xFF;
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if (ratio)
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fprintf(outf, "%d * %.1f = %.1f MHz max turbo 4 active cores\n",
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ratio, bclk, ratio * bclk);
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fprintf(outf, "%d * %.1f = %.1f MHz max turbo %d active cores\n",
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ratio, bclk, ratio * bclk, group_size);
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ratio = (msr >> 16) & 0xFF;
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group_size = (core_counts >> 16) & 0xFF;
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if (ratio)
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fprintf(outf, "%d * %.1f = %.1f MHz max turbo 3 active cores\n",
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ratio, bclk, ratio * bclk);
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fprintf(outf, "%d * %.1f = %.1f MHz max turbo %d active cores\n",
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ratio, bclk, ratio * bclk, group_size);
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ratio = (msr >> 8) & 0xFF;
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group_size = (core_counts >> 8) & 0xFF;
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if (ratio)
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fprintf(outf, "%d * %.1f = %.1f MHz max turbo 2 active cores\n",
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ratio, bclk, ratio * bclk);
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fprintf(outf, "%d * %.1f = %.1f MHz max turbo %d active cores\n",
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ratio, bclk, ratio * bclk, group_size);
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ratio = (msr >> 0) & 0xFF;
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group_size = (core_counts >> 0) & 0xFF;
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if (ratio)
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fprintf(outf, "%d * %.1f = %.1f MHz max turbo 1 active cores\n",
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ratio, bclk, ratio * bclk);
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fprintf(outf, "%d * %.1f = %.1f MHz max turbo %d active cores\n",
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ratio, bclk, ratio * bclk, group_size);
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return;
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}
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@ -2597,7 +2625,7 @@ int is_skx(unsigned int family, unsigned int model)
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return 0;
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}
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int has_nhm_turbo_ratio_limit(unsigned int family, unsigned int model)
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int has_turbo_ratio_limit(unsigned int family, unsigned int model)
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{
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if (has_slv_msrs(family, model))
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return 0;
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@ -2668,6 +2696,22 @@ int has_knl_turbo_ratio_limit(unsigned int family, unsigned int model)
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return 0;
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}
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}
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int has_glm_turbo_ratio_limit(unsigned int family, unsigned int model)
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{
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if (!genuine_intel)
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return 0;
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if (family != 6)
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return 0;
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switch (model) {
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case INTEL_FAM6_ATOM_GOLDMONT:
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case INTEL_FAM6_SKYLAKE_X:
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return 1;
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default:
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return 0;
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}
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}
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int has_config_tdp(unsigned int family, unsigned int model)
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{
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if (!genuine_intel)
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@ -2714,8 +2758,8 @@ dump_cstate_pstate_config_info(unsigned int family, unsigned int model)
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if (has_ivt_turbo_ratio_limit(family, model))
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dump_ivt_turbo_ratio_limits();
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if (has_nhm_turbo_ratio_limit(family, model))
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dump_nhm_turbo_ratio_limits();
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if (has_turbo_ratio_limit(family, model))
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dump_turbo_ratio_limits(family, model);
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if (has_atom_turbo_ratio_limit(family, model))
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dump_atom_turbo_ratio_limits();
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