Re: [PATCH v3 6/7] thermal/drivers/cpu_cooling: Introduce the cpu idle cooling driver

From: Daniel Lezcano
Date: Mon Apr 16 2018 - 06:03:47 EST

On 16/04/2018 11:50, Viresh Kumar wrote:
> On 16-04-18, 11:45, Daniel Lezcano wrote:
>> Can you elaborate a bit ? I'm not sure to get the point.
> Sure. With your current code on Hikey960 (big/LITTLE), you end up
> creating two cooling devices, one for the big cluster and one for
> small cluster. Which is the right thing to do, as we also have two
> cpufreq cooling devices.
> But with the change Sudeep is referring to, the helper you used to get
> cluster id will return 0 (SoC id) for all the 8 CPUs. So your code
> will end up creating a single cpuidle cooling device for all the CPUs.
> Which would be wrong.

Is the semantic of topology_physical_package_id changing ? I don't
understand the change Sudeep is referring to.

I saw this attempt:

>> BTW, Am I asked to change my code to stick to something which is not
>> merged ?
> Sudeep looked pretty confident on how the meaning of this routine is
> going to change very soon. I will let him respond on what guarantees
> we have that it will get merged :)

<> â Open source software for ARM SoCs

Follow Linaro: <> Facebook |
<!/linaroorg> Twitter |
<> Blog