From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from NAM11-DM6-obe.outbound.protection.outlook.com (mail-dm6nam11on2070.outbound.protection.outlook.com [40.107.223.70]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7F4841CA685; Wed, 18 Sep 2024 18:22:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.223.70 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726683761; cv=fail; b=M8QVW+EJ7hKDtsi90D9wzq9AsU1vQwI60ATCEtciH9o/4Vk5LR88QqUmGjwg47uU+ctilUvMGUTtLIgqbmNLIDaS4+AzDn/lVTiXq2wuEQKoNOA/a6qtx/UjZpJRSwR11JbZXhgD7KaXDQY8WpFMD3KmrkVIdwDL6XgwJEcuQp8= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726683761; c=relaxed/simple; bh=sKxCQYllFy3CXzdMZw9AB+jjc64gPPZkuX2loZGGr3M=; h=Message-ID:Date:Subject:From:To:Cc:References:In-Reply-To: Content-Type:MIME-Version; b=V03nejVCWNSFbDeE+0UmiE5LORBtXpQf5225n/46tItHSjCwYfNTMhJLs0deh5vE+iIOWazdrML9UyPtLV+NvL3BQ/wzX/3USj6Z558eLcRsh3nMJsxMNvIeowuyMW0NsREUpAATLNVKjsukPHYbNyQxMPY73sUiWZWbLdhHpZY= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com; spf=fail smtp.mailfrom=amd.com; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b=zEBtfEwt; arc=fail smtp.client-ip=40.107.223.70 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=amd.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="zEBtfEwt" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=V5L15DnmWFChxNlYw2nQiwWBZ33UvCFNNmnq8AFjMc9eQJp+pGYi6HG9ZQrWLIOu9hMT9M5PCAQOIXJ2NWlhK2GUDAnscO7QbX0BMwOXSwr09HtLdNdi77IqzLxfTY369LNJWohSN8pGN5SZ+sCZnJIoQtUWcJxYhNCgiSaaq2tC+TLQVMHYHkoG/lYCBHXQFKt8ZFwp7tdNCo08ZS3x06EbmqBgYvn6olC10B5FesvcXD71JGrug9jmm+7OrG9QEU2Q+bDuE4OvTDzLZws0feeH5zR1r9IAcVfW3f+wZ3xxxiJZO1JvtsLBGn9+b/jatjePwBnqOozrW+rfa2bnag== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=QtNUQMwzVEkxut9vY/BC0W5JdX4hrxGQFcjtY6aYQYw=; b=VsgJM/7ZhzIDccq/VrEC7MIPTjIQ3o0KI13w/zu2+Sc7F5bzoOg2V8LZph0C1DvFonwO6hvnQDKkH551+ZCWaTmGxkT1A0AuR9fvVQApZF+K88/fm9FdTkbK1i6i8IeEodDuuIh2qDX74lE1bHgIvHEskiya+cLiQA+AbPyilKN+1IYzpwPUYmcXgEtJEqEvZitm8ah+rbSqvco2NOOxNpqemB8c1u1sV7kETeUxb+hXfxbmirZ44si1AkKeutynRdZH/jbVKZR1GDfBvmlnDJroFPHqRSsYt4ZP3jDINz/ozUOxlfPjfUOWwpgoV0NZZvfhPnILapv05q/Wx5OuXA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=amd.com; dmarc=pass action=none header.from=amd.com; dkim=pass header.d=amd.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=QtNUQMwzVEkxut9vY/BC0W5JdX4hrxGQFcjtY6aYQYw=; b=zEBtfEwtciJzQMMA7slGAw1ROkRHsMKbPC2ByymTkKmWLu9nixa19vIPE+E9+kNGWsIdVv+Q024jccanXKEmTY4T550DQQPsjPaGFysM33TaGT2T9Nz/8UG7cmQ3hBXfZRVqUNwsfoGmKOPvzCzDE8SIln5SlmnaZtu8PS6L3ik= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=amd.com; Received: from MW3PR12MB4553.namprd12.prod.outlook.com (2603:10b6:303:2c::19) by MW4PR12MB7382.namprd12.prod.outlook.com (2603:10b6:303:222::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7982.16; Wed, 18 Sep 2024 18:22:36 +0000 Received: from MW3PR12MB4553.namprd12.prod.outlook.com ([fe80::b0ef:2936:fec1:3a87]) by MW3PR12MB4553.namprd12.prod.outlook.com ([fe80::b0ef:2936:fec1:3a87%4]) with mapi id 15.20.7962.022; Wed, 18 Sep 2024 18:22:36 +0000 Message-ID: <89da43fd-69fb-48a6-830e-e157360aeab6@amd.com> Date: Wed, 18 Sep 2024 13:22:32 -0500 User-Agent: Mozilla Thunderbird Reply-To: babu.moger@amd.com Subject: Re: [PATCH 3/7] x86/resctrl: Introduce sdciae_capable in rdt_resource From: "Moger, Babu" To: Reinette Chatre , corbet@lwn.net, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org Cc: fenghua.yu@intel.com, hpa@zytor.com, paulmck@kernel.org, thuth@redhat.com, xiongwei.song@windriver.com, ardb@kernel.org, pawan.kumar.gupta@linux.intel.com, daniel.sneddon@linux.intel.com, sandipan.das@amd.com, kai.huang@intel.com, peterz@infradead.org, kan.liang@linux.intel.com, pbonzini@redhat.com, xin3.li@intel.com, ebiggers@google.com, alexandre.chartre@oracle.com, perry.yuan@amd.com, tan.shaopeng@fujitsu.com, james.morse@arm.com, tony.luck@intel.com, maciej.wieczor-retman@intel.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, peternewman@google.com, eranian@google.com References: <254da029-81b2-4745-bc78-5aefeb33adb0@intel.com> Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-ClientProxiedBy: SN7PR04CA0059.namprd04.prod.outlook.com (2603:10b6:806:120::34) To MW3PR12MB4553.namprd12.prod.outlook.com (2603:10b6:303:2c::19) 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: MW3PR12MB4553:EE_|MW4PR12MB7382:EE_ X-MS-Office365-Filtering-Correlation-Id: ab09b652-80d6-4a28-cf09-08dcd80edf24 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|1800799024|366016|7416014; X-Microsoft-Antispam-Message-Info: =?utf-8?B?Y0p6MUVxZFFsYWRERnpFTVl4aGNYdU9UZGFacHJQNm9QVWt2aVNTVE56STBo?= =?utf-8?B?eTFqT05wa2tTZ2JPZ0tWaXM2R3d6TDVKNkRNNkZwK2VVdDVnRGhZTEJQTW9k?= =?utf-8?B?aGx0VUxnV3R2Y1JZRGFxQy9xdU5SS0RYZVdENUhjZ0dkaVlEOEVuZ1ExY0RP?= =?utf-8?B?Uk41bmM1K280LzVMR2FETVZCNEd6NXNSZnhJaW5GNTl2WjJNYTJPaHNyRE1y?= =?utf-8?B?UXM2QU5kbkgyTWZjNkVodUNuRzhtRVFuTUxHdHZpdjdKWnE2K0RGaDFpRXRh?= =?utf-8?B?NjhUejdmTWs2bmZKYkh0WDdsb2Zma3BCNkJLWmNHenQ1ek5JTXMyN2JldXll?= =?utf-8?B?d1l4c2VWUnJjeFkwa0ZjUUJRSDY4OTJ2YnpTREpKTDVlSG8ybDVDMmd0T1lQ?= =?utf-8?B?a0U3UU5WeEhSRDFuZkM1RTZXTUlHbHdKYnk5YWZZMWVQZ3BUWjRaVm8vTWtS?= =?utf-8?B?V1BIN0JGYklJTE1wL2l2MGNCRXI0RngzWXRNS0RrWFFPQWt3MFRXZUFyR1li?= =?utf-8?B?RTNPaFp0dkdvcEZJMXB2cGJLbjRUSWtYb2RPOFhnZDJHRmE1U1VOU3lVSXdT?= =?utf-8?B?djhDWXM2UmFTRjhldEdIbHEyZU5GMG5mTnhscmp4c1h3MjFGRFg4UGF4Z0dM?= =?utf-8?B?T0NZRUM5Yk5nVmI1SkZTTjNvSEM4SzMzWTFkNWxUWGhWWElFOEJXYmR2alda?= =?utf-8?B?WlczTGIvdDN5Ukw3dzRwbVlWSkpxZDhQUDRWbVBKWjc2R3k2b1lvZ1l1enpO?= =?utf-8?B?KzFLdnpkKzBWdlRjVjJ6cWJLUnpGM2ZTbFNPdVl3aDJ2TEpTcXpPeW9DbjNa?= =?utf-8?B?dytLdGJZN2FENG1Rci9jak5Sa2VuOE8zMC9yK2xiTGI3NXNiajNQUEt2SjZF?= =?utf-8?B?amJRdWNSa1RwYytpOU5tZmdTcDNoODdjcVBoOXVibEJaemh2ZmwxMDdIZXF4?= =?utf-8?B?MWcreE4vM3dHbWt5WStlYmNhektlcXo5MGdxT1RFVDBOM1IrWWd6dkhBS3FN?= =?utf-8?B?SEVjOWNhWVR4WGZiaEk1emFhWisyVjZHaGRseGdqaXRBelljMG0yczJXTHo5?= =?utf-8?B?ZitzbE5qTkhvMUpUU1hKWWVTZjVCYmpVVUZRczRyNTFnSzU1dmFTNFkvZFhR?= =?utf-8?B?RjdSNUx2OFNCYzMvUDAxRm5vemRxU3VKWDRoSWp3MkNROG9lRk9vNUUvZVA0?= =?utf-8?B?QVRhdVJSOVBySUpWUzFheWN3WTY2aGw2U3NneldpaElXdXQ0azdSQUE3dEta?= =?utf-8?B?cHdscVd0NDRXb3cxWHFnTGtLb01GRTNSUmtaS1pFTjBFUE9MSDlNejViU3dw?= =?utf-8?B?ZCtIdDl0TlBqL1VqbXpmTi9KanVZQ1AxbmcxNVZkb0V1andpNnVHY1JxK3Fp?= =?utf-8?B?RjhzcW82b2NjcTk1QU4vYzZlK2NHVTNBU3dGanNLWXFRa2QySkVpYVU4MHhs?= =?utf-8?B?bGx5RjM5NGhzbnpTci9ISFhIM1RIZkRmUm9SSHVMZzZjWWZGSU96NkZjODFw?= =?utf-8?B?S3g5L2tQUDNHejJZT0RVNk9yVEViOVBpOSt1NlVTeGNKMzZmZS94ZEJybDRN?= =?utf-8?B?QjFOUi84UjhTZUMwM1FTK2VXSytwd0hOeWQ4Rld0akJTZUx4UUwvRGUxbjdp?= =?utf-8?B?TTBGL0pqNXU0VVA5L2ZkcE9CaTRsRWhWYUIyTk9EVXkvSmlDTElYMGRRQk1m?= =?utf-8?B?bTJzaFhBL3Z2Z0hoblZkK2Rxb0FqaUlWVFdLcTdyTnZNVkZSYWZ5VDU1eDlq?= =?utf-8?B?YnIxTThXOGZTY29uM1FGNUY1b0c1ZjBTMXA1TnQwVnBxazBpU29OOW82Ty9o?= =?utf-8?B?QlJSS05hVko1Y016Q09WQT09?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:MW3PR12MB4553.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(376014)(1800799024)(366016)(7416014);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?UDQvYitpeXBQVkROK0pFTndkNWVEZnBqMFc5aUpsQmxGdk91akhWODF0NzA2?= =?utf-8?B?aXgwVDNRM3lZaTFTSUpVcGppWm11S2lQSnJOK2RhQ0VpZ1BjaXlZQ09BZ1gy?= =?utf-8?B?cDcvVUxzNmFtbDBJSkE1U3QwMzBjSWd6RlFMa1BwVmpCZnl5YXMxd0ZZNXdF?= =?utf-8?B?TWFIeXhSblZoQW9LeE1yL1BWenZKRTI0bmZwUE9sT2t1TFc3eGQ5cG01b1Na?= =?utf-8?B?T2ZrWHNyUzFBT0hCNk1KTXJQQzFnZlFTOVpEOTNVSURyL2tFb0Zmckt3bm02?= =?utf-8?B?ZXNsTlRrcCsrTDBzRUhiQ2RtYUIrRkNpRTlRaGE3SVNSZGtVZDRZTzdtUVRY?= =?utf-8?B?WFp2VFBydmNOZUk1eE81cUY3RUJpOU1lTkJZQ2loNnYxOG9Lb3FKL1I1VC9z?= =?utf-8?B?c0psYjhtRU55ZHZTZzFhS1lKbGJPekN4UVZtekNlVnhGZFpmU0xNVDg1WTA1?= =?utf-8?B?ZEF4TUNPUHdsNVdaMFRxbmpqb1JHZHNQZ05Xd0hhSU56dUZNaVZ2dHRzeTMy?= =?utf-8?B?cGdQeHJnWWlTQkdmQ1JpcEJBTDlCZHZMWGJtcUt5cElIbk1sMmVFYTNYNTR1?= =?utf-8?B?Y1RiVTBNYzhHQWcvQ2dxWXZuV2VCTnpINjFMSFovOE1RYWJXTzduVWxoRUw0?= =?utf-8?B?VjdrS09LaHl5dDlyWXZ4NXlYSm9FMDM0THVzYWZZSjgzclliVlJLeTVtZnVY?= =?utf-8?B?VGd0a3Y4UGF0UXJHNzBwSFQweEFyV2U1cUJUZ0l5THVJeGdiWFlHYlVpcXl2?= =?utf-8?B?c2V2U3YvRi9hL0VYSzc4K3p6ZE5hY1RzSk15TXAwZS8wNjl5MG01TkJsMjJq?= =?utf-8?B?eGtpeHc3WTBtbkRuR2hHSG1mWGFoRzRIVjEvVVR0RXVaQzMxRERyNDdTQXZL?= =?utf-8?B?Z2d3ZUtFdGI5dk0wNStHYlJNUk9JbWlSVjBQR0ZFdmJJS2ZQU212azIxcUhN?= =?utf-8?B?TnJTU0JOcFJOdHZ4U2g4R1plNkU3WTB3K25IK3plaldhSitQYlZQRTRKVWc1?= =?utf-8?B?VzlWaGJ1Tnp3T3V3K1lCUDFqMmZPY3VzRGUrNnBENzNFZXlrSmpkenlsVS84?= =?utf-8?B?ZjBUSWh0NVNXajgvdDJEWkZvbG9jbnJpcmVMVGk2LzBLejg5bTdtSWRLMm5q?= =?utf-8?B?RXhKc1F5Nm4xWXNsSVVJN0EzVGhZOUtiN1ZYbVJkc0ZPbThWd0JnRFZCckhI?= =?utf-8?B?YkZnaFB2UEJoUkhCcHh4YVNabncwYUcwYkI0ZWZvSi96S1FUUTFPUVQ2YkZG?= =?utf-8?B?bGJudlMzc3JmanQzanJqL1NMRmxMM2xmWVJtOVVZYTJTL0dIODdzTmFUbU1u?= =?utf-8?B?NkZodktEVjREN2V6azljUlFtTEg1bktSN2ZoVmlCQ0gycklqNjdoL3pTRzhQ?= =?utf-8?B?WjlsSjZ6aW8xR2Irb0R2YVRGRUdNYkdiSXAzU0J1M1plMWw0UjI2Zk93NlZ6?= =?utf-8?B?R0dTZ0hnYlNITU0vRUdJZ09hY3NvVkcrM05xREpSalgvMk9IVG16aytwdWY5?= =?utf-8?B?blovSDd0OVAyUEZKRVJrSVFXSklVbWFVdExjUjVycm80NFp6cktPU1hRQUQr?= =?utf-8?B?dEowUlRSb1dvUk1MUnBsS1ducnZVNlZXS056NDdiZWNhU0htY295RE9FV092?= =?utf-8?B?cFFIWW5hSHQ5QXNGTlhzRUNLcU0zWVFzcnEvMlMxQVNEMEgrWDQ1Rm82dklZ?= =?utf-8?B?UDAzOVFGVmZac1B4bHJFT3J5d0R2amtOTndqWDVBVXFDbjVBOVdmaU5vaW94?= =?utf-8?B?TitLZTlGYjBoVVJFS3pTcmMxeU1yT1U1L0VPT0JDeUk5S09WRzgrYy9TRzN3?= =?utf-8?B?RzVBbmkzdGNQUlZWL010VlQ4MnRkREw0WHg2M1NOZ2pDWVg2VGJ0YmZWZVFX?= =?utf-8?B?SFBVTkVzMWkremNRRmp6VkZVQ1BlQS9vNjlRd2lpOUxTdzVYUjZ6UDkxaDhY?= =?utf-8?B?RERMaEZjR1lTTzdhTFcvRDNzWTlLUkRoRE9YTDZRU3VMTEZQQ2xDbm1hVGhl?= =?utf-8?B?ZFBpWWhSMXZ4YUM2MVJGSXhhNXNUYmV4OXg0L1BRTS91ck5yOFpSYVdGNE1t?= =?utf-8?B?WHF3SWhoWURhQUZPQldRZzdnM3ZNVEQ5YmovTXAyWUpEV2NTWHdhWXFOMHkx?= =?utf-8?Q?Y3Po=3D?= X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: ab09b652-80d6-4a28-cf09-08dcd80edf24 X-MS-Exchange-CrossTenant-AuthSource: MW3PR12MB4553.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Sep 2024 18:22:36.7895 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: czrX/S7T5MgaGz7R/OiQTGVU2X6eE0NzVUFJp9HDdEsepuKVxQPbGHKXfMImcFFu X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR12MB7382 On 9/18/24 10:27, Moger, Babu wrote: > Hi Reinette, > > On 9/13/24 15:45, Reinette Chatre wrote: >> Hi Babu, >> >> On 8/16/24 9:16 AM, Babu Moger wrote: >>> Detect SDCIAE`(L3 Smart Data Cache Injection Allocation Enforcement) >> >> (stray ` char) > > Sure. > >> >>> feature and initialize sdciae_capable. >> >> (This is a repeat of the discussion we had surrounding the ABMC feature.) >> >> By adding "sdciae_capable" to struct rdt_resource the "sdciae" feature >> becomes a resctrl fs feature. Any other architecture that has a "similar >> but perhaps not identical feature to AMD's SDCIAE" will be forced to also >> call it "sdciae" ... sdciae seems like a marketing name to me and resctrl >> needs something generic that could later be built on (if needed) by other >> architectures. > > How about "cache_inject_capable" ? > > This seems generic. I will change the description also. > Basically, this feature reserves specific CLOS for SDCI cache. We can also name "clos_reserve_capable". -- Thanks Babu Moger