problem about ACPI processor procfs

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Hello, list

I met some problems when duplicating ACPI processor procfs interface in sysfs.
#cat /proc/acpi/processor/CPU0/limit
Active limit:		P0:T0
User limit:		P0:T0
Thermal limit:	P0,T0

IMO, "Tx" is easy to understand. It indicates the active T-state, T-state set by user and T-state set by thermal (in passive mode).

But what does the "Px" stand for? After reading the code in processor_thermal.c, I don't think user or thermal will change its value.
And I don't know if it's still needed when porting to sysfs.

Best regards,
Zhang.Rui(Ray)
 
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