Currently, there can't be multiple instances of single governor_type. If we have a multi-package system, where we have multiple instances of struct policy (per package), we can't have multiple instances of same governor. i.e. We can't have multiple instances of ondemand governor for multiple packages.
Governors directory in sysfs is created at /sys/devices/system/cpu/cpufreq/ governor-name/. Which again reflects that there can be only one instance of a governor_type in the system. This is a bottleneck for multicluster system, where we want different packages to use same governor type, but with different tunables. This patchset is inclined towards fixing this issue. Viresh Kumar (4): cpufreq: Don't check cpu_online(policy->cpu) cpufreq: stats: Get rid of CPUFREQ_STATDEVICE_ATTR cpufreq: Add per policy governor-init/exit infrastructure cpufreq: governor: Implement per policy instances of governors drivers/cpufreq/cpufreq.c | 41 ++++--- drivers/cpufreq/cpufreq_conservative.c | 142 +++++++++++++---------- drivers/cpufreq/cpufreq_governor.c | 140 +++++++++++++--------- drivers/cpufreq/cpufreq_governor.h | 42 ++++--- drivers/cpufreq/cpufreq_ondemand.c | 205 +++++++++++++++++++-------------- drivers/cpufreq/cpufreq_stats.c | 18 +-- drivers/cpufreq/cpufreq_userspace.c | 2 - drivers/cpufreq/freq_table.c | 6 - include/linux/cpufreq.h | 26 +---- 9 files changed, 346 insertions(+), 276 deletions(-) -- 1.7.12.rc2.18.g61b472e _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
