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Message-ID: <e18cda72-24a2-4578-affa-f19397a970f9@arm.com>
Date: Tue, 6 Feb 2024 13:54:10 +0000
From: Lukasz Luba <lukasz.luba@....com>
To: Dietmar Eggemann <dietmar.eggemann@....com>
Cc: rui.zhang@...el.com, amit.kucheria@...durent.com, amit.kachhap@...il.com,
daniel.lezcano@...aro.org, viresh.kumar@...aro.org, len.brown@...el.com,
pavel@....cz, mhiramat@...nel.org, qyousef@...alina.io, wvw@...gle.com,
xuewen.yan94@...il.com, linux-kernel@...r.kernel.org,
linux-pm@...r.kernel.org, rafael@...nel.org
Subject: Re: [PATCH v7 00/23] Introduce runtime modifiable Energy Model
Hi Dietmar,
On 1/29/24 18:16, Dietmar Eggemann wrote:
> On 17/01/2024 10:56, Lukasz Luba wrote:
>
> [...]
>
>> Changelog:
>> v7:
>> - dropped em_table_get/put() (Rafael)
>> - renamed memory function to em_table_alloc/free() (Rafael)
>> - use explicit rcu_read_lock/unlock() instead of wrappers and aligned
>> frameworks & drivers using EM (Rafael)
>> - adjusted documentation to the new functions
>> - fixed doxygen comments (Rafael)
>> - renamed 'refcount' to 'kref' (Rafael)
>> - changed patch headers according to comments (Rafael)
>> - rebased on 'next-20240112' to get Ingo's revert affecting energy_model.h
>> v6 [6]:
>> - renamed 'runtime_table' to 'em_table' (Dietmar, Rafael)
>> - dropped kref increment during allocation (Qais)
>> - renamed em_inc/dec_usage() to em_table_inc/dec() (Qais)
>> - fixed comment description and left old comment block with small
>> adjustment in em_cpu_energy() patch 15/23 (Dietmar)
>> - added platform name which was used for speed-up testing (Dietmar)
>> - changed patch header description keep it small not repeating the in-code
>> comment describing 'cost' in em_cpu_energy() patch 15/23 (Dietmar)
>> - added check and warning in em_cpu_energy() about RCU lock held (Qais, Xuewen)
>> - changed nr_perf_states usage in the patch 7/23 (Dietmar)
>> - changed documentation according to comments (Dietmar)
>> - changed in-code comment in patch 11/23 according to comments (Dietmar)
>> - changed example driver function 'ctx' argument in the documentation (Xuewen)
>> - changed the example driver in documentation, dropped module_exit and
>> added em_free_table() explicit in the update function
>> - fixed comments in various patch headers (Dietmar)
>> - fixed Doxygen comment s/@...te/@...le patch 4/23 (Dietmar)
>> - added information in the cover letter about:
>> -- optimization in EAS hot code path
>> -- follow-up patch set which adds OPP support and modifies EM for Exynos5
>> - rebased on 'next-20240104' to avoid collision with other code touching
>> em_cpu_energy()
>
> LGTM now. I see that my comments from v5 have been addressed. Minor
> points which still exists for me I commented on in the individual patches.
>
> For the whole series:
>
> Reviewed-by: Dietmar Eggemann <dietmar.eggemann@....com>
> Tested-by: Dietmar Eggemann <dietmar.eggemann@....com>
>
> (with a simple test driver updating the EM for CPU0 on Arm64 Juno-r0)
Thank you for the review and testing!
I'll probably have to re-base the v7 on top of some current PM
branch.
Regards,
Lukasz
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