Re: [PATCH v3 3/6] cpufreq/schedutil: use a fixed reference frequency

[Peter Zijlstra]

On Wed, Oct 18, 2023 at 06:25:37PM +0200, Vincent Guittot wrote:

> +static __always_inline
> +unsigned long get_capacity_ref_freq(struct cpufreq_policy *policy)
> +{
> +	unsigned int freq = arch_scale_freq_ref(policy->cpu);
> +
> +	if (freq)
> +		return freq;
> +
> +	if (arch_scale_freq_invariant())
> +		return policy->cpuinfo.max_freq;
> +
> +	return policy->cur;
> +}

Hmm, what should x86 do here? I know it mostly doesn't use these things,
but would it make sense to stick the base frequency in ?