Re: [PATCH 2/3] PM: EM: Make em_cpu_energy() able to return bigger values

[Lukasz Luba]

On 7/7/21 11:01 AM, Peter Zijlstra wrote:
> On Wed, Jul 07, 2021 at 09:09:08AM +0100, Lukasz Luba wrote:
> > For now we would live with this simple code which improves
> > all recent 64bit platforms and is easy to take it into Android
> > common kernel. The next step would be more scattered across
> > other subsystems, so harder to backport to Android 5.4 and others.
>
> Ah, you *do* only care about 64bit :-) So one option is to only increase
> precision for 64BIT builds, just like we do for scale_load() and
> friends.

Your suggestion is potentially a good compromise :-)
We could leave the 32bit alone and they would have old code and
precision.

Thank you for the comments. Let me discuss this internally with my team.