Re: [PATCH 6/7] thermal: netlink: Add a new event to notify CPU capabilities change

[Daniel Lezcano]

On 06/11/2021 02:33, Ricardo Neri wrote:
> From: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx>
> 
> Add a new netlink event to notify change in CPU capabilities in terms of
> performance and efficiency.
> 
> Firmware may change CPU capabilities as a result of thermal events in the
> system or to account for changes in the TDP (thermal design power) level.
> 
> This notification type will allow user space to avoid running workloads
> on certain CPUs or proactively adjust power limits to avoid future events.
> 

[ ... ]

> +	[THERMAL_GENL_ATTR_CPU_CAPABILITY_ID]	= { .type = NLA_U32 },
> +	[THERMAL_GENL_ATTR_CPU_CAPABILITY_PERF]	= { .type = NLA_U32 },
> +	[THERMAL_GENL_ATTR_CPU_CAPABILITY_EFF]	= { .type = NLA_U32 },
>  };

AFAIU, 0 <= perf < 256 and 0 <= eff < 256, right?

Is the following true?

	0 <= perf + eff < 256



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