Re: [RFC][PATCH 1/2] cpufreq: Add special-purpose fast-switching callback for drivers

[Viresh Kumar]

On 30-11-20, 19:37, Rafael J. Wysocki wrote:
> Index: linux-pm/include/linux/cpufreq.h
> ===================================================================
> --- linux-pm.orig/include/linux/cpufreq.h
> +++ linux-pm/include/linux/cpufreq.h
> @@ -320,6 +320,15 @@ struct cpufreq_driver {
>  					unsigned int index);
>  	unsigned int	(*fast_switch)(struct cpufreq_policy *policy,
>  				       unsigned int target_freq);
> +	/*
> +	 * ->fast_switch() replacement for drivers that use an internal
> +	 * representation of performance levels and can pass hints other than
> +	 * the target performance level to the hardware.
> +	 */
> +	void		(*adjust_perf)(unsigned int cpu, bool busy,

Maybe this should still take policy as an argument (like other calls)
instead of CPU, even if it is going to be used for single-cpu per
policy case for now.

> +				       unsigned long min_perf,
> +				       unsigned long target_perf,
> +				       unsigned long capacity);

-- 
viresh