On 2013年06月27日 13:24, Viresh Kumar wrote: > 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. > Thanks for your comments. I will add this in my patch. -- Best regards Tianyu Lan -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
