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Message-ID: <ef5b5a4b-d8b1-b82f-243f-170213883f05@intel.com>
Date:   Tue, 18 Jul 2023 13:43:45 -0700
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Subject: Re: [PATCH v3 5/8] x86/resctrl: Add package scoped resource
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To:     Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        "Peter Newman" <peternewman@google.com>,
        Jonathan Corbet <corbet@lwn.net>,
        Shuah Khan <skhan@linuxfoundation.org>, <x86@kernel.org>
CC:     Shaopeng Tan <tan.shaopeng@fujitsu.com>,
        James Morse <james.morse@arm.com>,
        Jamie Iles <quic_jiles@quicinc.com>,
        Babu Moger <babu.moger@amd.com>,
        Randy Dunlap <rdunlap@infradead.org>,
        <linux-kernel@vger.kernel.org>, <linux-doc@vger.kernel.org>,
        <patches@lists.linux.dev>
References: <20230713163207.219710-1-tony.luck@intel.com>
 <20230713163207.219710-6-tony.luck@intel.com>
From:   Reinette Chatre <reinette.chatre@intel.com>
In-Reply-To: <20230713163207.219710-6-tony.luck@intel.com>
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Hi Tony,

On 7/13/2023 9:32 AM, Tony Luck wrote:
> Some Intel features require setting a package scoped model specific
> register.
> 
> Add a new resource that builds domains for each package.

If I understand correctly the only purpose of this new resource
is to know when the first CPU associated with a package
comes online. Am I not reading this right? Using a resctrl resource
for this purpose seems inappropriate and unnecessary while also
making the code very hard to follow.

Reinette