From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from SN4PR2101CU001.outbound.protection.outlook.com (mail-southcentralusazon11012053.outbound.protection.outlook.com [40.93.195.53]) (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 66F5C31F99C; Tue, 21 Jul 2026 15:45:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.93.195.53 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784648764; cv=fail; b=K/8g/TOyOJS+3u5uX1MYvMaqddfET/EziHSvrfiOMRyvFlUJfj8pait3hnLDIMl6+NtOZuhaArc0/d6exjqLWAiGVLhNk5B8wvonkWliEscPs6vazYFi3XOYR/8HV+BRZd4BB3MYbCjhV2LFLBZwyndjio++5b5C3NGBx9zH1j4= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784648764; c=relaxed/simple; bh=pRX95jPAXtzqjd55QEM7pl9oAL7+eHMPZ076dODemOo=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=KcbAFBnSOwprqDO6Z2wa9OGvX4EYfHo8CGPrOrho4mIQAdt9o+4DnUiHLSnv4TEOppRRCkIpemI4OkA1h02n7PvWKk25aQyXmQxog7m+elOPwDY7lWXW3EDFnXQ725DfrAbRrenuigUC3ZIUTO7sjNeUmpPgRmy7jQKh6P18eXM= 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=ioGgyOdJ; arc=fail smtp.client-ip=40.93.195.53 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="ioGgyOdJ" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=myvc+qrGJ/c00Ztg+/Hi2uKk9P/73lfFfGdh/WxI3KcBVJ8XOv+ICjwGJPuG/SpAmcwcjRBZeFsG0+CiUZXJuS0+XBLiCk3471/isSahr6vcJD87wWlc+jMFes/YmzQPExOf8APGZJN0rS/3tN8tSfy3rBa5LygRZ7YploF4oVj0DjppRP7pVKZWrNVsM0kxxduLvmlaMYw2RiXJYUxqI3s4cIyQCwnsKQkQdD8vV0gMCs6Tfv3ZEvt4QgC43goO6wVYJZLgEa2FPqCHe2o9pIM3H2OQfYJLNloeGB6lv/gA0enupOzcWRv5/hLQxMwCcXyUGKcM4oY2hLtOYzq0ww== 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=iIPQbX+Ki0YmUoxL0n/peqkCwBEP4tPvgF/+NCd/pnU=; b=iM+wyZTILroGI/eQRTVSUfeDOQCQ8O6EFI7Hs6BhKZ98NX1AGddCpmX9pb8ugTPk77OmhiDt//bzd5U7txKLufFQjHAbTh4+xfEBayTuvz/Zj2rSxebS0aUmXeJ9kq2CJtLsswDYk0RxOnQz8X4zUW2FnpJooPHHJlh/jyaRNp65PMImR3MbtX7eEw44eRdDVi9gwOH+B8W0e1+ZG0BOvd7mRdu1USxCdIOkqouWWPclr4i9l6vtpem3n+DzCom2tpXUJBKoXtb4b4GlIEraXD4jL1hf1nrlg+4QypdKnKKf62OlE82ssxIMdKH05kY5XcV1UIZu+y1Ubdm8w+GHNA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=kernel.org smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) 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=iIPQbX+Ki0YmUoxL0n/peqkCwBEP4tPvgF/+NCd/pnU=; b=ioGgyOdJhPW0wvG24IVuuXGt+XaC2zCMW9g3VGw4A9TNGVL+/sbcNYqWB939sOsUA+6TcoZhTp+7N6o+OGBG8lk3GyvST1nS+Djcrx2ckJSiMaHqSY16hCZLUK81JUJvQM0U0QzxwWk9BSpOYqX30rygj35XF9Vn023hBGhrw7E= Received: from SA0PR11CA0067.namprd11.prod.outlook.com (2603:10b6:806:d2::12) by PH0PR12MB7472.namprd12.prod.outlook.com (2603:10b6:510:1e9::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.245.10; Tue, 21 Jul 2026 15:45:50 +0000 Received: from SA2PEPF00003AE5.namprd02.prod.outlook.com (2603:10b6:806:d2:cafe::68) by SA0PR11CA0067.outlook.office365.com (2603:10b6:806:d2::12) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.21.245.10 via Frontend Transport; Tue, 21 Jul 2026 15:45:50 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=satlexmb07.amd.com; pr=C Received: from satlexmb07.amd.com (165.204.84.17) by SA2PEPF00003AE5.mail.protection.outlook.com (10.167.248.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.245.5 via Frontend Transport; Tue, 21 Jul 2026 15:45:49 +0000 Received: from airavat.amd.com (10.180.168.240) by satlexmb07.amd.com (10.181.42.216) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.41; Tue, 21 Jul 2026 10:45:45 -0500 From: Vishal Badole To: , , , , , , , CC: , , , , , , Vishal Badole Subject: [PATCH v2 2/3] x86/topology: Name the AMD core-type values Date: Tue, 21 Jul 2026 21:15:13 +0530 Message-ID: <20260721154514.2506972-3-Vishal.Badole@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260721154514.2506972-1-Vishal.Badole@amd.com> References: <20260721154514.2506972-1-Vishal.Badole@amd.com> Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: satlexmb08.amd.com (10.181.42.217) To satlexmb07.amd.com (10.181.42.216) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA2PEPF00003AE5:EE_|PH0PR12MB7472:EE_ X-MS-Office365-Filtering-Correlation-Id: e972d1d3-9caa-4020-75c1-08dee73f2382 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|23010399003|1800799024|32650700020|82310400026|36860700016|376014|7416014|11063799006|56012099006|10067099003|22082099003|18002099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:satlexmb07.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(23010399003)(1800799024)(32650700020)(82310400026)(36860700016)(376014)(7416014)(11063799006)(56012099006)(10067099003)(22082099003)(18002099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: BrwW/r9fElYtKtQoedF8Yyr6KNNWMH8qwExEWo079T7TkqCKgPIGHmuWNZXg3IjYA3CI0URIksg+J7WAIQIBrmFRekLWeOCrO/uqaOJKCrvuMcaEV2D9PjgT8LDOwxnJxjQmFGkdJfupxaBci2czB7AScIFGF3aLJ5gldC7AiaHyHCji2welQO46JabNPatoixN3cMjXWe4UHjvX6wkf+F8R6OH9jQB4SpU5cVqELWjf6iRGuKgTJ/xH80z7wyopzDzP2K9tsDxuRMr6Fr3GWDNFZJrmsqKfT4xjz4TQlfBl6nU70ZOab2QD4FgMGMxZW58w4/gBuO8+F9EY1gB42yKKWJzL19O1yFByTZKuUpxmDHk5ZHJRbQfOKCAfQ3UtGkH+SICsO6Y/Ch3QXcFnj3TbKLqLoJRyKCODSBhiz+p7Da7g0UiG9hCreD72CcWR X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Jul 2026 15:45:49.7262 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e972d1d3-9caa-4020-75c1-08dee73f2382 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SA2PEPF00003AE5.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR12MB7472 Replace the bare 0/1 in get_topology_cpu_type() with named constants that mirror what the AMD APM publishes for CPUID Fn0x80000026 EBX[31:28] (Extended CPU Topology, Core Type): 0 - Performance core 1 - Efficient core 2 - Low-power core (used by a follow-up) No functional change. Suggested-by: Borislav Petkov (AMD) Signed-off-by: Vishal Badole --- arch/x86/include/asm/topology.h | 6 ++++++ arch/x86/kernel/cpu/topology_common.c | 4 ++-- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h index ef76ba674f1b..1825691af941 100644 --- a/arch/x86/include/asm/topology.h +++ b/arch/x86/include/asm/topology.h @@ -114,6 +114,12 @@ enum x86_topology_domains { TOPO_MAX_DOMAIN, }; +enum amd_cpu_type { + AMD_CPU_TYPE_PERFORMANCE = 0, + AMD_CPU_TYPE_EFFICIENCY = 1, + AMD_CPU_TYPE_LOW_POWER = 2, +}; + struct x86_topology_system { unsigned int dom_shifts[TOPO_MAX_DOMAIN]; unsigned int dom_size[TOPO_MAX_DOMAIN]; diff --git a/arch/x86/kernel/cpu/topology_common.c b/arch/x86/kernel/cpu/topology_common.c index b9d025f3373a..71b6c33afe0b 100644 --- a/arch/x86/kernel/cpu/topology_common.c +++ b/arch/x86/kernel/cpu/topology_common.c @@ -42,8 +42,8 @@ enum x86_topology_cpu_type get_topology_cpu_type(struct cpuinfo_x86 *c) } if (c->x86_vendor == X86_VENDOR_AMD) { switch (c->topo.amd_type) { - case 0: return TOPO_CPU_TYPE_PERFORMANCE; - case 1: return TOPO_CPU_TYPE_EFFICIENCY; + case AMD_CPU_TYPE_PERFORMANCE: return TOPO_CPU_TYPE_PERFORMANCE; + case AMD_CPU_TYPE_EFFICIENCY: return TOPO_CPU_TYPE_EFFICIENCY; } } -- 2.34.1