Commit bbaa2e95 authored by Srinivas Pandruvada's avatar Srinivas Pandruvada Committed by Hans de Goede
Browse files

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: default avatarSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20201221071859.2783957-3-srinivas.pandruvada@linux.intel.com


Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
parent f981dc17

tools/power/x86/intel-speed-select/isst-config.c

+11 −0
Original line number Diff line number Diff line
@@ -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);

	}

}