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From: Lukasz Luba <lukasz.luba@arm.com>
To: Changwoo Min <changwoo@igalia.com>
Cc: christian.loehle@arm.com, tj@kernel.org, pavel@kernel.org,
	len.brown@intel.com, rafael@kernel.org, kernel-dev@igalia.com,
	linux-pm@vger.kernel.org, sched-ext@lists.linux.dev,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH RESEND v4 01/10] PM: EM: Assign a unique ID when creating a performance domain
Date: Mon, 6 Oct 2025 13:24:33 +0100	[thread overview]
Message-ID: <affa03ed-f859-4e11-9de2-59702b9d5ea4@arm.com> (raw)
In-Reply-To: <05359260-336f-4047-bc3a-003ace5ad7c4@arm.com>



On 10/6/25 09:17, Lukasz Luba wrote:
> Hi Chanwoo,
> 
> My apologies to delay on this topic.
> 
> On 9/21/25 04:19, Changwoo Min wrote:
>> It is necessary to refer to a specific performance domain from a
>> userspace. For example, the energy model of a particular performance
>> domain is updated.
>>
>> To this end, assign a unique ID to each performance domain to address it,
> 
> Is this related to the sched_ext view on the EM that we cannot re-use
> the allocated ID for the given domain?

Ignore that comment, I know the need now.

Although, there is a small code sneak below...



[..]

>> @@ -660,6 +678,13 @@ int em_dev_register_pd_no_update(struct device 
>> *dev, unsigned int nr_states,
>>   unlock:
>>       mutex_unlock(&em_pd_mutex);
>> +    if (_is_cpu_device(dev))
>> +        em_check_capacity_update();
>> +

It doesn't below to this $subject at all. It looks like
it was left from some your local changes, isn't it?


  reply	other threads:[~2025-10-06 12:24 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-21  3:19 [PATCH RESEND v4 00/10] PM: EM: Add netlink support for the energy model Changwoo Min
2025-09-21  3:19 ` [PATCH RESEND v4 01/10] PM: EM: Assign a unique ID when creating a performance domain Changwoo Min
2025-10-06  8:17   ` Lukasz Luba
2025-10-06 12:24     ` Lukasz Luba [this message]
2025-10-13 13:46       ` Changwoo Min
2025-09-21  3:19 ` [PATCH RESEND v4 02/10] PM: EM: Expose the ID of a performance domain via debugfs Changwoo Min
2025-10-06 14:26   ` Lukasz Luba
2025-09-21  3:19 ` [PATCH RESEND v4 03/10] PM: EM: Add an iterator and accessor for the performance domain Changwoo Min
2025-10-06 15:14   ` Lukasz Luba
2025-09-21  3:19 ` [PATCH RESEND v4 04/10] PM: EM: Add em.yaml and autogen files Changwoo Min
2025-10-06 15:25   ` Lukasz Luba
2025-09-21  3:19 ` [PATCH RESEND v4 05/10] PM: EM: Add a skeleton code for netlink notification Changwoo Min
2025-10-06 15:44   ` Lukasz Luba
2025-10-13 13:46     ` Changwoo Min
2025-10-13 13:53       ` Lukasz Luba
2025-10-13 14:43         ` Changwoo Min
2025-09-21  3:19 ` [PATCH RESEND v4 06/10] PM: EM: Implement em_nl_get_pds_doit() Changwoo Min
2025-10-10  9:32   ` Lukasz Luba
2025-09-21  3:19 ` [PATCH RESEND v4 07/10] PM: EM: Implement em_nl_get_pd_table_doit() Changwoo Min
2025-10-10 10:01   ` Lukasz Luba
2025-10-13 13:47     ` Changwoo Min
2025-09-21  3:19 ` [PATCH RESEND v4 08/10] PM: EM: Implement em_notify_pd_deleted() Changwoo Min
2025-10-10 10:17   ` Lukasz Luba
2025-09-21  3:19 ` [PATCH RESEND v4 09/10] PM: EM: Implement em_notify_pd_created/updated() Changwoo Min
2025-10-10 10:19   ` Lukasz Luba
2025-09-21  3:19 ` [PATCH RESEND v4 10/10] PM: EM: Notify an event when the performance domain changes Changwoo Min
2025-10-10 10:20   ` Lukasz Luba

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