Re: [PATCH] cpufreq: powernv: Return the actual CPU frequency in /proc/cpuinfo
From: Michael Ellerman
Date: Fri Oct 06 2017 - 06:30:47 EST
Shriya <shriyak@xxxxxxxxxxxxxxxxxx> writes:
> Make /proc/cpuinfo read the frequency of the CPU it is running at
> instead of reading the cached value of the last requested frequency.
> In conditions like WOF/throttle CPU can be running at a different
> frequency than the requested frequency.
Sounds like a bug fix to me ?
> diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c
> index 897aa14..55ea4bf 100644
> --- a/arch/powerpc/platforms/powernv/setup.c
> +++ b/arch/powerpc/platforms/powernv/setup.c
> @@ -311,7 +311,7 @@ static unsigned long pnv_get_proc_freq(unsigned int cpu)
> unsigned long ret_freq;
> - ret_freq = cpufreq_quick_get(cpu) * 1000ul;
> + ret_freq = cpufreq_get(cpu) * 1000ul;
> * If the backend cpufreq driver does not exist,