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| author | Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> | 2017-01-03 12:06:00 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-02-03 23:59:41 +0100 |
| commit | b12f7a2b01f7adebb9982a6547f4e930914829a9 (patch) | |
| tree | 9d312e8425e8fb56c0fe08d3c1f6cb6dd7c04d52 /drivers/cpufreq/qoriq-cpufreq.c | |
| parent | cpufreq: Documentation: Updates based on current code (diff) | |
| download | linux-b12f7a2b01f7adebb9982a6547f4e930914829a9.tar.xz linux-b12f7a2b01f7adebb9982a6547f4e930914829a9.zip | |
cpufreq: powernv: Add boost files to export ultra-turbo frequencies
In P8+, Workload Optimized Frequency(WOF) provides the capability to
boost the cpu frequency based on the utilization of the other cpus
running in the chip. The On-Chip-Controller(OCC) firmware will control
the achievability of these frequencies depending on the power headroom
available in the chip. Currently the ultra-turbo frequencies provided
by this feature are exported along with the turbo and sub-turbo
frequencies as scaling_available_frequencies. This patch will export
the ultra-turbo frequencies separately as scaling_boost_frequencies in
WOF enabled systems. This patch will add the boost sysfs file which
can be used to disable/enable ultra-turbo frequencies.
Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/qoriq-cpufreq.c')
0 files changed, 0 insertions, 0 deletions