[PATCH v4 0/4] Clarify abstract scale usage for power values in Energy Model, EAS and IPA

[Lukasz Luba]

On 11/10/20 7:32 PM, Rafael J. Wysocki wrote:
> On Wed, Nov 4, 2020 at 11:58 AM Lukasz Luba <lukasz.luba at arm.com> wrote:
>>
>> Hi Rafael,
>>
>> On 11/3/20 9:05 AM, Lukasz Luba wrote:
>>> Hi all,
>>>
>>> The Energy Model supports power values expressed in an abstract scale.
>>> This has an impact on Intelligent Power Allocation (IPA) and should be
>>> documented properly. Kernel sub-systems like EAS, IPA and DTPM
>>> (new comming PowerCap framework) would use the new flag to capture
>>> potential miss-configuration where the devices have registered different
>>> power scales, thus cannot operate together.
>>>
>>> There was a discussion below v2 of this patch series, which might help
>>> you to get context of these changes [2].
>>>
>>> The agreed approach is to have the DT as a source of power values expressed
>>> always in milli-Watts and the only way to submit with abstract scale values
>>> is via the em_dev_register_perf_domain() API.
>>>
>>> Changes:
>>> v4:
>>> - change bool to int type for 'miliwatts' in struct em_perf_domain
>>>     (suggested by Quentin)
>>> - removed one sentence from patch 2/4 in IPA doc power_allocator.rst
>>>     (suggested by Quentin)
>>> - added reviewed-by from Quentin to 1/4, 3/4, 4/4 patches
>>
>> There was no major objections in the v3 and this v4 just addressed
>> minor comments. The important discussions mostly happen in v2.
>>
>> Could you take the patches via your tree, please?
> 
> Applied as 5.11 material, thanks!
> 

Thank you Rafael!

Regards,
Lukasz