linux-kernel - Re: [PATCH v12 02/26] x86/resctrl: Remove MSR reading of event configuration value

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Message-ID: <a1211845-a50a-4a52-b8e6-d124ba983fb3@amd.com>
Date: Mon, 14 Apr 2025 10:57:20 -0500
From: "Moger, Babu" <babu.moger@....com>
To: Reinette Chatre <reinette.chatre@...el.com>, tony.luck@...el.com,
 peternewman@...gle.com
Cc: corbet@....net, tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
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Subject: Re: [PATCH v12 02/26] x86/resctrl: Remove MSR reading of event
 configuration value

Hi Reinette,

On 4/11/25 15:50, Reinette Chatre wrote:
> Hi Babu,
> 
> On 4/3/25 5:18 PM, Babu Moger wrote:
>> The event configuration is domain specific and initialized during domain
>> initialization. The values are stored in struct rdt_hw_mon_domain.
>>
>> It is not required to read the configuration register every time user asks
>> for it. Use the value stored in struct rdt_hw_mon_domain instead.
> 
> Storing and maintaining the event configuration creates confusion with
> the new event configurations introduced in the rest of this series. I
> think that it will be simpler to keep BMEC support as-is.

That is fine with me. I will remove first two patches from this series.
There are multiple things going on with resctrl. We can do these
optimizations later.
-- 
Thanks
Babu Moger