diff options
| author | Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> | 2020-12-21 10:18:59 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-02-07 17:37:13 +0300 |
| commit | 4d06445ad762c4a740868a0ce263abf2d4d55727 (patch) | |
| tree | 898224587de81d72f3ef3eac8811fcd9049b29bf /tools | |
| parent | f667433cb379ab9ee1cbefbfee09d4c8a3459563 (diff) | |
| download | linux-4d06445ad762c4a740868a0ce263abf2d4d55727.tar.xz | |
tools/power/x86/intel-speed-select: Set higher of cpuinfo_max_freq or base_frequency
[ Upstream commit bbaa2e95e23e74791dd75b90d5ad9aad535acc6e ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/power/x86/intel-speed-select/isst-config.c | 11 |
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 97755f35d991..ead9e51f75ad 100644 --- a/tools/power/x86/intel-speed-select/isst-config.c +++ b/tools/power/x86/intel-speed-select/isst-config.c @@ -1457,6 +1457,16 @@ 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; @@ -1554,6 +1564,7 @@ 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); } } |