linux-kernel - Re: [PATCH 0/7] Minor cleanup for thermal gov power allocator

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Date:   Fri, 24 Nov 2023 07:45:48 +0000
From:   Lukasz Luba <lukasz.luba@....com>
To:     "Rafael J. Wysocki" <rafael@...nel.org>
Cc:     linux-kernel@...r.kernel.org, daniel.lezcano@...aro.org,
        linux-pm@...r.kernel.org, rui.zhang@...el.com
Subject: Re: [PATCH 0/7] Minor cleanup for thermal gov power allocator



On 11/23/23 19:50, Rafael J. Wysocki wrote:
> Hi Lukasz,
> 
> On Thu, Nov 23, 2023 at 4:19 PM Lukasz Luba <lukasz.luba@....com> wrote:
>>
>> Hi Rafael,
>>
>> Gentle ping
>>
>> On 10/26/23 13:22, Lukasz Luba wrote:
>>>
>>>
>>> On 10/26/23 09:54, Rafael J. Wysocki wrote:
>>>> On Wed, Oct 25, 2023 at 9:21 PM Lukasz Luba <lukasz.luba@....com> wrote:
>>>>>
>>>>> Hi all,
>>>>>
>>>>> The patch set does some small clean up for Intelligent Power Allocator.
>>>>> Those changes are not expected to alter the general functionality.
>>>>> They just
>>>>> improve the code reading. Only patch 3/7 might improve the use case for
>>>>> binding the governor to thermal zone (very unlikely in real products,
>>>>> but
>>>>> it's needed for correctness).
>>>>>
>>>>> The changes are based on top of current PM thermal branch, so with the
>>>>> new trip points.
>>>>>
>>>>> Regards,
>>>>> Lukasz
>>>>>
>>>>> Lukasz Luba (7):
>>>>>     thermal: gov_power_allocator: Rename trip_max_desired_temperature
>>>>>     thermal: gov_power_allocator: Setup trip points earlier
>>>>>     thermal: gov_power_allocator: Check the cooling devices only for
>>>>>       trip_max
>>>>>     thermal: gov_power_allocator: Rearrange the order of variables
>>>>>     thermal: gov_power_allocator: Use shorter variable when possible
>>>>>     thermal: gov_power_allocator: Remove unneeded local variables
>>>>>     thermal: gov_power_allocator: Clean needed variables at the beginning
>>>>>
>>>>>    drivers/thermal/gov_power_allocator.c | 123 ++++++++++++++------------
>>>>>    1 file changed, 64 insertions(+), 59 deletions(-)
>>>>>
>>>>> --
>>>>
>>>> The series looks good to me overall, but I'd prefer to make these
>>>> changes in the 6.8 cycle, because the 6.7 merge window is around the
>>>> corner and there is quite a bit of thermal material in this cycle
>>>> already.
>>>
>>> Thanks for having a look! Yes, I agree, we can wait after the
>>> merge window. It just have to be cleaned one day a bit and I postponed
>>> this a few times, so no rush ;)
>>
>> I've seen you've created the new pm/thermal. Could you consider to take
>> those in, please?
> 
> Sure, I'll get to them presumably tomorrow and if not then early next week.

OK, thank you Rafael!

> 
>> I would send some RFC on top showing the issue with reading back the CPU
>> max frequency from the PM_QoS chain.
> 
> Sounds good.