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Thu, 24 Sep 2026 20:57:56 +0000 Message-ID: <15de2e2f-fc2e-4d06-9179-100398865624@intel.com> Date: Thu, 24 Sep 2026 13:57:54 -0700 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v12 23/25] x86/resctrl: Require 64-bit x86 for resctrl support To: Tony Luck , Fenghua Yu , "Maciej Wieczor-Retman" , Peter Newman , James Morse , Babu Moger , Drew Fustini , Dave Martin , Chen Yu , David E Box , CC: Christoph Hellwig , , References: <20260916231320.14502-1-tony.luck@intel.com> <20260916231320.14502-24-tony.luck@intel.com> Content-Language: en-US From: Reinette Chatre In-Reply-To: <20260916231320.14502-24-tony.luck@intel.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: MW3PR06CA0011.namprd06.prod.outlook.com (2603:10b6:303:2a::16) To SJ2PR11MB8370.namprd11.prod.outlook.com (2603:10b6:a03:540::20) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ2PR11MB8370:EE_|DSVPR11MB9916:EE_ X-MS-Office365-Filtering-Correlation-Id: 84e43871-e825-41ee-e252-08df1a7e823d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|366016|23010399003|7416014|376014|921020|4143699003|11063799006|10067099003|56012099006|22082099003|18002099003|6133799003; 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For accurate results these should be read with a > single 64-bit load operation from the CPU. > > In preparation for the removal of the separate CONFIG_X86_CPU_RESCTRL_INTEL_AET > configuration option, move the X86_64 dependency to X86_CPU_RESCTRL. > > This in line with Dave Hansen's proposal[1] for an addition to Linux "This in line" -> "This is in line"? > documentation that details the state of 32-bit x86 support. Instead of requiring reader to follow link to learn what the state of support is this could just briefly summarize it and reader can then choose to follow link for the details. Does not need to be detailed itself, that is what the link is for, just a small change would already help a lot, for example: "details the state of 32-bit x86 support." -> "details reduced 32-bit x86 support." > > Link: https://lore.kernel.org/all/c6ab0c24-8931-4f0d-9be6-23498ab4c38b@intel.com/ # [1] > Signed-off-by: Tony Luck See "Ordering of commit tags" in Documentation/process/maintainer-tip.rst > --- Reinette