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Wed, 23 Oct 2024 21:03:13 +0000 Message-ID: Date: Wed, 23 Oct 2024 14:03:11 -0700 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 02/40] x86/resctrl: Add a helper to avoid reaching into the arch code resource list To: James Morse , , CC: Fenghua Yu , Thomas Gleixner , Ingo Molnar , Borislav Petkov , H Peter Anvin , Babu Moger , , D Scott Phillips OS , , , , , , Jamie Iles , Xin Hao , , , , David Hildenbrand , Rex Nie , "Dave Martin" , Shaopeng Tan References: <20241004180347.19985-1-james.morse@arm.com> <20241004180347.19985-3-james.morse@arm.com> From: Reinette Chatre Content-Language: en-US In-Reply-To: <20241004180347.19985-3-james.morse@arm.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: MW4PR04CA0090.namprd04.prod.outlook.com (2603:10b6:303:6b::35) To SJ2PR11MB7573.namprd11.prod.outlook.com (2603:10b6:a03:4d2::10) 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: SJ2PR11MB7573:EE_|PH7PR11MB6833:EE_ X-MS-Office365-Filtering-Correlation-Id: e9b1c94f-dccb-4be4-569a-08dcf3a61bca X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|366016|1800799024; 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All > architectures would also need a r_resctrl member in this struct. > > Instead, abstract this via a helper to allow architectures to do > different things here. Move the level enum to the resctrl header and > add a helper to retrieve the struct rdt_resource by 'rid'. > > resctrl_arch_get_resource() should not return NULL for any value in > the enum, it may instead return a dummy resource that is > !alloc_enabled && !mon_enabled. > > Co-developed-by: Dave Martin > Signed-off-by: Dave Martin > Signed-off-by: James Morse > Tested-by: Peter Newman > Tested-by: Shaopeng Tan > Tested-by: Carl Worth # arm64 > Tested-by: Shaopeng Tan > Reviewed-by: Shaopeng Tan > Reviewed-by: Reinette Chatre > --- There are duplicate "Tested-by" tags from Shaopeng. (found by checkpatch.pl) Reinette