[PATCH 0/3] firmware: arm_scmi: Register and handle limits change notification
Cristian Marussi
cristian.marussi at arm.com
Wed Jan 17 01:41:40 PST 2024
On Mon, Jan 08, 2024 at 07:31:15PM +0530, Sibi Sankar wrote:
> This series registers for scmi limits change notifications and adds
> perf_notify_support/perf_opp_xlate interfaces which are used by the
> scmi cpufreq driver to determine the throttled frequency and apply HW
> pressure.
>
Hi,
a few initial remarks from the mere SCMI standpoint.
Unlinke most SCMI protocols that expose domains info bits via an
*info_get protocol operation, PERF does no do this since (till now) there
wasn't a compelling reason (i.e. users)
Ulf recently in his GenPD/SCMI series recently started exposing something
and now you need to expose even more, adding also a new xlate ops.
For the sake of simplicity, I think that we could now expose straight
away the whole perf_domain_info and embedded structs via the usual *info_get.
After having done that, you can just drop your patch 1 and 2 since you
can access the needed info from the cpufreq_driver right away.
Having said, I have already such patch ready (for my internal testing), I
wll post it by the end of week after a minor cleanup, if you can bear with me.
Thoughts ?
Thanks,
Cristian
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