On 20 June 2013 16:48, Chanwoo Choi <[email protected]> wrote: > But, > To show old frequency/new frequency on load_table debugfs file, > governor function(dbs_check_cpu()) pass calculated CPUs load to specific > governor(e.g., ondemand) > as below function flow. > > dbs_check_cpu() (in cpufreq.c) > -> od_check_cpu() (in cpufreq_ondemand.c) > -> __cpufreq_driver_target() (in cpufreq.c) > -> cpufreq_driver->target(policy) > > Also, The __cpufreq_driver_target() is external function which can be called > on other file > so I must consider exception case. > > If send CPUFREQ_LOADCHECK noti after changed cpu frequency, > I think it is complicated and has quite a little difficulty. > > What is your opinion?
What you can do is: - create another routine: cpufreq_governor_driver_target() - replace all __cpufreq_driver_target() from ondemand/conservative governors with this one - In cpufreq_governor_driver_target() call __cpufreq_driver_target() and take a note of new freq. Maybe you don't need to check the actual freq that is set (even that would be simple to implement), but what is requested. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
