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authorSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>2020-12-21 10:18:59 +0300
committerHans de Goede <hdegoede@redhat.com>2021-01-04 17:54:27 +0300
commitbbaa2e95e23e74791dd75b90d5ad9aad535acc6e (patch)
tree1e6c84b7e307a71f59fe2bfe7d3b8be33d1e8455 /tools/power
parentf981dc171c04c6cf5a35c712543b231ebf805832 (diff)
downloadlinux-bbaa2e95e23e74791dd75b90d5ad9aad535acc6e.tar.xz
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>
Diffstat (limited to 'tools/power')
-rw-r--r--tools/power/x86/intel-speed-select/isst-config.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/tools/power/x86/intel-speed-select/isst-config.c b/tools/power/x86/intel-speed-select/isst-config.c
index 9b6f0e6f150d..09cb3a6672f3 100644
--- a/tools/power/x86/intel-speed-select/isst-config.c
+++ b/tools/power/x86/intel-speed-select/isst-config.c
@@ -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);
}
}