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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>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.