On 04-02-19, 11:09, Quentin Perret wrote: > The Energy Model (EM) framework feeds interested subsystems (the > scheduler/EAS as of now) with power costs provided by drivers. Yet, no > driver is actually doing that upstream yet. This series updates a set of > CPUFreq drivers in order to register power costs in the EM framework for > some of the Arm reference platforms for EAS: Hikey960, Juno and TC2. > > The series is split as follows: > - Patch 01 introduces in PM_OPP a helper function which estimates the > CPU power using the P=CV²f equation also used by IPA. It should be > noted that this introduces duplicate code with IPA, which will > eventually be fixed by migrating IPA to using PM_EM. The ideal plan > would be to do so later, in a separate patch series. I would indeed > prefer to keep the thermal and CPUFreq discussion separate at this > stage, if deemed acceptable. > - Patches 02-04 make use of that PM_OPP helper function from the > following CPUFreq drivers: cpufreq-dt, scpi-cpufreq and > arm_big_little. > - Patch 05 modifies the SCMI cpufreq driver to pass the power costs > obtained from firmware to PM_EM. This patch is independent from the > rest of the series. > > > Changes since v3 (20190201093101.31869-1-quentin.per...@arm.com) > - Moved the OPP count inside dev_pm_opp_of_register_em() (Matthias, > Sudeep)
Applied. Thanks. -- viresh
