On 26 June 2013 18:08, Lan Tianyu <tianyu.lan@xxxxxxxxx> wrote: > diff --git a/Documentation/cpu-freq/acpi-cpufreq.txt b/Documentation/cpu-freq/acpi-cpufreq.txt > new file mode 100644 > index 0000000..9c59d09 > --- /dev/null > +++ b/Documentation/cpu-freq/acpi-cpufreq.txt > @@ -0,0 +1,7 @@ > +Sysfs interface > +--------------------------- > +(Interface locates in the directory /sys/devices/system/cpu/cpuN/cpufreq) > + > +freqdomain_cpus : List of Online + Offline CPUs in same CPU dependency > + domain. > + Apart from the comments from Rafael, this must be described a bit more. We must write here how is it different than related_cpus. Write: freqdomain_cpus are the list of cpus (online+offline) that share same clock/freq domain at hardware level. This information might be hidden from cpufreq core and so related_cpus can have different value compared to this. This is not used by kernel but userspace DVFS controllers to get better power/performance values for platforms using acpi-cpufreq.c driver. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
