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cpupower: Print kernel and hardware frequency information

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The kernel asserted frequency from scaling_cur_freq may not always match
the hardware reported frequency from cpuinfo_cur_freq.

Print both values when they are available, and only print the unavailable
message on x86 when the hardware frequency can't be read.

Link: https://lore.kernel.org/r/20260709221344.1919794-4-jeremy.linton@arm.com
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Jeremy Linton
2026-07-09 17:13:44 -05:00
committed by Shuah Khan
parent 6b8ff06854
commit 5100bd356c
1 changed files with 4 additions and 4 deletions
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8
tools/power/cpupower/utils/cpufreq-info.c
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@@ -270,10 +270,10 @@ static int get_freq_hardware(unsigned int cpu, unsigned int human)
{
unsigned long freq;
if (!(cpupower_cpu_info.caps & CPUPOWER_CAP_APERF))
freq = cpufreq_get_freq_hardware(cpu);
if (!(cpupower_cpu_info.caps & CPUPOWER_CAP_APERF) && !freq)
return -EINVAL;
freq = cpufreq_get_freq_hardware(cpu);
printf(_(" current CPU frequency: "));
if (!freq) {
printf("Unable to call hardware\n");
@@ -514,8 +514,8 @@ static void debug_output_one(unsigned int cpu)
get_available_governors(cpu);
get_policy(cpu);
if (get_freq_hardware(cpu, 1) < 0)
get_freq_kernel(cpu, 1);
get_freq_hardware(cpu, 1);
get_freq_kernel(cpu, 1);
get_boost_mode(cpu);
get_perf_cap(cpu);
}