Re: [PATCH] sched: Provide USF for the portable equipment.

[peterz]

On Thu, Jul 30, 2020 at 09:35:43PM +0800, Dongdong Yang wrote:
> diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
> index 7fbaee2..7bc3429 100644
> --- a/kernel/sched/cpufreq_schedutil.c
> +++ b/kernel/sched/cpufreq_schedutil.c
> @@ -289,12 +289,21 @@ unsigned long schedutil_cpu_util(int cpu, unsigned long util_cfs,
>  	return min(max, util);
>  }
>  
> +#ifdef CONFIG_SCHED_USF
> +void (*adjust_task_pred_demand)(int cpuid, unsigned long *util,
> +	struct rq *rq) = NULL;
> +EXPORT_SYMBOL(adjust_task_pred_demand);
> +#endif
> +
>  static unsigned long sugov_get_util(struct sugov_cpu *sg_cpu)
>  {
>  	struct rq *rq = cpu_rq(sg_cpu->cpu);
>  	unsigned long util = cpu_util_cfs(rq);
>  	unsigned long max = arch_scale_cpu_capacity(sg_cpu->cpu);
> -
> +#ifdef CONFIG_SCHED_USF
> +	if (adjust_task_pred_demand)
> +		adjust_task_pred_demand(sg_cpu->cpu, &util, rq);
> +#endif
>  	sg_cpu->max = max;
>  	sg_cpu->bw_dl = cpu_bw_dl(rq);

NAK