Messages in this thread | | | From | Lukasz Luba <> | Subject | [PATCH 0/4] Energy Model power in micro-Watts and SCMI v3.1 alignment | Date | Wed, 22 Jun 2022 15:57:58 +0100 |
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Hi all,
This is a patch set which changes Energy Model power values scale to micro-Watts. It also upgrades the SCMI performance layer + scmi-cpufreq driver to leverage the SCMI v3.1 spec and process micro-Watts power values coming from FW. The higher precision in EM power field solves an issue of a rounding error, which then can be misinterpreted as 'inefficient OPP'. An example rounding issue calculation is present in patch 1/4 description.
Regards, Lukasz Luba
Lukasz Luba (4): PM: EM: convert power field to micro-Watts precision and align drivers Documentation: EM: Switch to micro-Watts scale firmware: arm_scmi: Get detailed power scale from perf cpufreq: scmi: Support the power scale in micro-Watts in SCMI v3.1
Documentation/power/energy-model.rst | 14 +++--- drivers/cpufreq/mediatek-cpufreq-hw.c | 7 +-- drivers/cpufreq/scmi-cpufreq.c | 15 ++++++- drivers/firmware/arm_scmi/perf.c | 18 +++++--- drivers/opp/of.c | 15 ++++--- drivers/powercap/dtpm_cpu.c | 5 +-- drivers/thermal/cpufreq_cooling.c | 13 +++++- drivers/thermal/devfreq_cooling.c | 19 ++++++-- include/linux/energy_model.h | 63 ++++++++++++++++++++------- include/linux/scmi_protocol.h | 8 +++- kernel/power/energy_model.c | 31 ++++++++----- 11 files changed, 146 insertions(+), 62 deletions(-)
-- 2.17.1
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