Hi Rafael,
So all my patches are contained in two series. The first one is:
[PATCH V3 0/8] cpufreq: cleanups and reorganization
which I have sent this morning. It does some cleanup and shall be applied regardless of this series.
This series improves the performance of cpufreq_frequency_table_target() routine by storing the policy->freq_table sorted in ascending order. On one hand it shall improve the performance of current governors for drivers providing freq-table to cpufreq core and on another hand this API can be used directly from schedutil governor as well.
As Steve has requested earlier, these APIs are moved to a .h file to avoid function calls.
Steve's series can use this API now without any performance lag.
The first 7 patches makes sure that current drivers wouldn't break because of reordering of policy->freq_table and the 8th patch updates cpufreq core to sort policy->freq_table and make cpufreq_frequency_table_target() much more efficient.
This series is tested on ARM exynos platform and all the frequencies are switching properly with both ondemand and schedutil governor.
V2->V3: - Combined two series as you suggested - Moved the new APIs and cpufreq_frequency_table_target() to a .h
All the patches are pushed here for testing in case anyone wants to try:
git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git cpufreq/sorted-freq-table
Thanks
-- viresh
Viresh Kumar (9): cpufreq: Use policy->freq_table in ->target_index() cpufreq: blackfin: Use 'index' only to index into policy->freq_table cpufreq: elanfreq: Use 'index' only to index into policy->freq_table cpufreq: exynos: Use 'index' only to index into policy->freq_table cpufreq: ia64: Use 'index' only to index into policy->freq_table cpufreq: imx: Use 'index' only to index into policy->freq_table cpufreq: maple: Use 'index' only to index into policy->freq_table cpufreq: Keep policy->freq_table sorted in ascending order cpufreq: drivers: Free frequency tables after being used
MAINTAINERS | 1 + drivers/cpufreq/acpi-cpufreq.c | 23 ++--- drivers/cpufreq/arm_big_little.c | 2 +- drivers/cpufreq/at32ap-cpufreq.c | 8 +- drivers/cpufreq/blackfin-cpufreq.c | 17 +++- drivers/cpufreq/cpufreq-dt.c | 9 +- drivers/cpufreq/cpufreq.c | 20 ++-- drivers/cpufreq/cpufreq_ondemand.h | 1 + drivers/cpufreq/cris-artpec3-cpufreq.c | 2 +- drivers/cpufreq/cris-etraxfs-cpufreq.c | 2 +- drivers/cpufreq/dbx500-cpufreq.c | 3 +- drivers/cpufreq/e_powersaver.c | 26 +++--- drivers/cpufreq/elanfreq.c | 8 +- drivers/cpufreq/exynos5440-cpufreq.c | 13 ++- drivers/cpufreq/freq_table.c | 163 +++++++++++++-------------------- drivers/cpufreq/ia64-acpi-cpufreq.c | 16 +++- drivers/cpufreq/imx6q-cpufreq.c | 13 ++- drivers/cpufreq/kirkwood-cpufreq.c | 2 +- drivers/cpufreq/loongson1-cpufreq.c | 10 +- drivers/cpufreq/loongson2_cpufreq.c | 5 +- drivers/cpufreq/maple-cpufreq.c | 6 ++ drivers/cpufreq/powernv-cpufreq.c | 1 + drivers/cpufreq/s3c24xx-cpufreq.c | 1 + drivers/cpufreq/s5pv210-cpufreq.c | 1 + include/linux/cpufreq.h | 3 - include/linux/cpufreq_table.h | 139 ++++++++++++++++++++++++++++ 26 files changed, 317 insertions(+), 178 deletions(-) create mode 100644 include/linux/cpufreq_table.h