Power Management Sees More P-State Tweaking, Other Changes For Linux 4.11

Written by Michael Larabel in Hardware on 21 February 2017 at 06:37 AM EST. Add A Comment
Rafael Wysocki has submitted the ACPI and power management feature updates for the Linux 4.11 kernel.

The work in the power management space this cycle includes improvements to Operating Performance Points (OPP), CPUFreq core clean-ups, new CPUFreq drivers for Broadcom BMIPS and TI SoCs and Qoriq.

The P-State driver has a new sysfs knob to control the driver's operation mode and some fixes along with hardware-managed P-State feature support changes. There is also pstate_sample as an Intel P-State diagnostics tool. The operation mode control via sysfs for P-State allows setting the driver to off, active as the default behavior, or passive if the driver works as a regular CPUFreq implementation and collaborates with the generic CPUFreq governors.

More details on the power management changes via this pull request.

There was also the ACPI updates and they include fixes, disassembler/debugger updates, and other routine changes.
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