linux-kernel - Re: [PATCH v2 0/8] Add callback for cooling list update to speed-up IPA

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Date: Wed, 20 Dec 2023 16:25:05 +0000
From: Lukasz Luba <lukasz.luba@....com>
To: "Rafael J. Wysocki" <rafael@...nel.org>
Cc: daniel.lezcano@...aro.org, linux-pm@...r.kernel.org, rui.zhang@...el.com,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/8] Add callback for cooling list update to speed-up
 IPA



On 12/20/23 13:37, Rafael J. Wysocki wrote:
> On Wed, Dec 20, 2023 at 1:53 PM Lukasz Luba <lukasz.luba@....com> wrote:
>>
>> Hi Daniel, Rafael,
>>
>> On 12/12/23 13:48, Lukasz Luba wrote:
>>> Hi all,
>>>
>>> The patch set a new callback for thermal governors and implementation for
>>> Intelligent Power Allocator.
>>>
>>> The goal is to move some heavy operarions like the memory allocations and heavy
>>> computations (multiplications) out of throttle() callback hot path.
>>>
>>> The new callback is generic enough to handle other imporants update events.
>>> It re-uses existing thermal_notify_event definitions.
>>>
>>> In addition there are some small clean-ups for IPA code.
>>>
>>> changes:
>>> v2:
>>> - change callback name to update_tz() and add parameter (Rafael)
>>> - added new event to trigger this callback - instance 'weight' update
>>>
>>> Regards,
>>> Lukasz
>>>
>>> Lukasz Luba (8):
>>>     thermal: core: Add governor callback for thermal zone change
>>>     thermal: gov_power_allocator: Refactor check_power_actors()
>>>     thermal: gov_power_allocator: Move memory allocation out of throttle()
>>>     thermal: gov_power_allocator: Simplify checks for valid power actor
>>>     thermal: gov_power_allocator: Refactor checks in divvy_up_power()
>>>     thermal/sysfs: Update instance->weight under tz lock
>>>     thermal/sysfs: Update governors when the 'weight' has changed
>>>     thermal: gov_power_allocator: Support new update callback of weights
>>>
>>>    drivers/thermal/gov_power_allocator.c | 216 ++++++++++++++++++--------
>>>    drivers/thermal/thermal_core.c        |  13 ++
>>>    drivers/thermal/thermal_sysfs.c       |  15 ++
>>>    include/linux/thermal.h               |   6 +
>>>    4 files changed, 182 insertions(+), 68 deletions(-)
>>>
>>
>> I know it's a bit late in time period...
>> You probably missed that patch set in your mailbox.
>> This patch set can probably just wait to the next window, or
>> should I resend it later in 2024?
> 
> Not really, I was about to comment one the first patch.
> 
> I'll do that shortly.
> 

Thank you for the comments. I'll send a v3 with changes.