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tools/power/x86/intel-speed-select: Set higher of cpuinfo_max_freq or base_frequency 

In some case when BIOS disabled turbo, cpufreq cpuinfo_max_freq can be
lower than base_frequency at higher config level. So, in that case set
scaling_min_freq to base_frequency.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20201221071859.2783957-3-srinivas.pandruvada@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
master
Srinivas Pandruvada 2020-12-20 23:18:59 -08:00 committed by Hans de Goede
parent f981dc171c
commit bbaa2e95e2
1 changed files with 11 additions and 0 deletions
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11
tools/power/x86/intel-speed-select/isst-config.c
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@ -1461,6 +1461,16 @@ static void adjust_scaling_max_from_base_freq(int cpu)
set_cpufreq_scaling_min_max(cpu, 1, base_freq);
}
static void adjust_scaling_min_from_base_freq(int cpu)
{
int base_freq, scaling_min_freq;
scaling_min_freq = parse_int_file(0, "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_min_freq", cpu);
base_freq = get_cpufreq_base_freq(cpu);
if (scaling_min_freq < base_freq)
set_cpufreq_scaling_min_max(cpu, 0, base_freq);
}
static int set_clx_pbf_cpufreq_scaling_min_max(int cpu)
{
struct isst_pkg_ctdp_level_info *ctdp_level;
@ -1558,6 +1568,7 @@ static void set_scaling_min_to_cpuinfo_max(int cpu)
continue;
set_cpufreq_scaling_min_max_from_cpuinfo(i, 1, 0);
adjust_scaling_min_from_base_freq(i);
}
}