[RFC PATCH 0/2] Add Krait Cache Scaling support
From: Ansuel Smith
Date: Wed Aug 05 2020 - 15:53:55 EST
This adds Krait Cache scaling support using the cpufreq notifier.
I have some doubt about where this should be actually placed (clk or cpufreq)?
Also the original idea was to create a dedicated cpufreq driver (like it's done in
the codeaurora qcom repo) by copying the cpufreq-dt driver and adding the cache
scaling logic but i still don't know what is better. Have a very similar driver or
add a dedicated driver only for the cache using the cpufreq notifier and do the
scale on every freq transition.
Thanks to everyone who will review or answer these questions.
Ansuel Smith (2):
cpufreq: qcom: Add Krait Cache Scaling support
dt-bindings: cpufreq: Document Krait CPU Cache scaling
.../bindings/cpufreq/krait-cache-scale.yaml | 89 ++++++++
drivers/cpufreq/Kconfig.arm | 9 +
drivers/cpufreq/Makefile | 1 +
drivers/cpufreq/krait-cache.c | 216 ++++++++++++++++++
4 files changed, 315 insertions(+)
create mode 100644 Documentation/devicetree/bindings/cpufreq/krait-cache-scale.yaml
create mode 100644 drivers/cpufreq/krait-cache.c