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Message-ID: <20250121105355.sdrgmjv2w2256qfn@vireshk-i7>
Date: Tue, 21 Jan 2025 16:23:55 +0530
From: Viresh Kumar <viresh.kumar@...aro.org>
To: Beata Michalska <beata.michalska@....com>
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-pm@...r.kernel.org, ionela.voinescu@....com,
	sudeep.holla@....com, will@...nel.org, catalin.marinas@....com,
	rafael@...nel.org, sumitg@...dia.com, yang@...amperecomputing.com,
	vanshikonda@...amperecomputing.com, lihuisong@...wei.com,
	zhanjie9@...ilicon.com, Jonathan Corbet <corbet@....net>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	"H . Peter Anvin" <hpa@...or.com>, Phil Auld <pauld@...hat.com>,
	x86@...nel.org, linux-doc@...r.kernel.org
Subject: Re: [PATCH v9 2/5] cpufreq: Introduce an optional cpuinfo_avg_freq
 sysfs entry

On 21-01-25, 08:44, Beata Michalska wrote:
> diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
> index 6f45684483c4..b2a8efa83c98 100644
> --- a/drivers/cpufreq/cpufreq.c
> +++ b/drivers/cpufreq/cpufreq.c
> @@ -733,12 +733,20 @@ __weak int arch_freq_get_on_cpu(int cpu)
>  	return -EOPNOTSUPP;
>  }
>  
>  static ssize_t show_scaling_cur_freq(struct cpufreq_policy *policy, char *buf)
>  {
>  	ssize_t ret;
>  	int freq;
>  
> -	freq = arch_freq_get_on_cpu(policy->cpu);
> +	freq = IS_ENABLED(CONFIG_CPUFREQ_ARCH_CUR_FREQ)
> +		? arch_freq_get_on_cpu(policy->cpu)
> +		: 0;
> +
>  	if (freq > 0)
>  		ret = sysfs_emit(buf, "%u\n", freq);
>  	else if (cpufreq_driver->setpolicy && cpufreq_driver->get)

Maybe this should be a separate commit ? And also I am not very happy
with the new kconfig option. I don't want others to use it as we want
to get rid of this for X86 too eventually. Making it a kconfig option
allows anyone to enable it and then depend on it without us knowing..

Rather just write it as "if (x86)", with a comment on what we plan to
do with it in few release cycles.

-- 
viresh

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