From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from SN4PR0501CU005.outbound.protection.outlook.com (mail-southcentralusazon11011050.outbound.protection.outlook.com [40.93.194.50]) (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 CA03B4B5413; Thu, 3 Sep 2026 14:21:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.93.194.50 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788445283; cv=fail; b=MBC8WBdR6FhPvJ1tboba2Ux3D0AqRJ5c98jtYegQafd7Yv35eLOCMSYgGQL51Ki3Im8BvKfr+jYWSXAqizbLtkAFWyLB0OShq3sbrkOa0gagtq5YIP5wx9U18OiEuOnVFaL42iR1rfLbC4iXU4NVljYbwNzQPgRA6qjhEDH72OU= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788445283; c=relaxed/simple; bh=Cld8hW5s2QzxPGDfHU4NQ01BhpXDql1dxfi8SnVLvUM=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=QrXvlZZUQYKYQcdfZQrimBLS7cFSNYKFhAtYpgHpo1KEQ44kMrWuU2fwIuqhg6arooeatlyJLqsVkkJ/6cJY1+VYhY7LyYnIEIxJ+T9mTHmYI6fm1gegQXW+sgVu/QNntP9eIrWNz7m+WwdPzSMMm2MqGwPpC6Tm4Qx7aPn1cbc= 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=ysySQ9IZ; arc=fail smtp.client-ip=40.93.194.50 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="ysySQ9IZ" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=mLaN/CFGYDRJftEviPF8I6otYC2T2dCZe1KDS066+BH1BWfyHTwX7UW6bgTcVidZv89tdvdEz6A82wjb4aRHnqHAavII2RfJTs6ARWWsc1GpPmaV7dEr5FlImD5lS88l5jKe5JACqRymhMTJk4qlCDmfxxD9B8r7nFvQxM+bDdBSLf9GjXsONknldJSXc6cWpICkXHIR39TecMBCKWY+j3m4eugLj5WEVj3CCbxfSvRogNuXV+dPdZOij3fPvtVsp/l9J46+YaGmlSEmYv/WVIrfnHOTI8Y+OZZV0oCUtUeds8yqWJ7pu326YlFpYy60JkB/OcwLfIvigOEH/gVL/A== 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=Lpxd7x00UMq98MfOveXOPeB3xw4sGlKhLZg794CmxAY=; b=ENoo1pux/NMIs3m/pMlay8IrZKKWqIi7Uu9e18U+3HGr7sSxQ+1Vm2vykhXe5qW9WJzt6kio23u6rsSH/TYGVnUP+bnxjd8oI8W9aXRZo9r9JhbbUgHlANzO1NnEYR/lGiVKgIKQi0t/mim9LSU7SxQvwKJfjKd30h7+JPgInLbgy+8Jb0RHogwkzOCx+z8XhY+BU+ue7YW9aHtToL22aTgocWAO2NFXkpNm5Dp/atATIkeiNRUcA46MTKIEONRdjpcVxl7KVUWjZzUIMBNboFJ66H8jk1zPY2k2qLNHX5YcgOx41TmWOvy3xCkabvH2H/BZ7vdqo0be6g6x+epJOw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=vger.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=Lpxd7x00UMq98MfOveXOPeB3xw4sGlKhLZg794CmxAY=; b=ysySQ9IZSsB9gtjHPk+mXaKOmKQxLm5fOIizVjNaevfdl2wxeAzIJpipkPlw+rwWf+N+GIik+5hq9yQNiFz4USouLdINpE5PeQuz0oHf2/Wy2ti0pcvJ6ZQVml53Et4FyCUAH+JYDz0HhHMWSxhqfa8HoZiJHtk9NV+UYfMgwD4= Received: from MN2PR18CA0008.namprd18.prod.outlook.com (2603:10b6:208:23c::13) by SA1PR12MB7126.namprd12.prod.outlook.com (2603:10b6:806:2b0::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.360.13; Thu, 3 Sep 2026 14:21:01 +0000 Received: from BN6PEPF0000006F.namprd03.prod.outlook.com (2603:10b6:208:23c:cafe::81) by MN2PR18CA0008.outlook.office365.com (2603:10b6:208:23c::13) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.21.382.12 via Frontend Transport; Thu, 3 Sep 2026 14:21:01 +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 BN6PEPF0000006F.mail.protection.outlook.com (10.167.248.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.382.8 via Frontend Transport; Thu, 3 Sep 2026 14:21:00 +0000 Received: from quartz-7b1chost.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 15.2.2562.46; Thu, 3 Sep 2026 09:20:59 -0500 From: Yazen Ghannam To: CC: , , Subject: [PATCH 0/3] Increase MCA bank count Date: Thu, 3 Sep 2026 09:20:46 -0500 Message-ID: <20260903142049.4126599-1-yazen.ghannam@amd.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@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: BN6PEPF0000006F:EE_|SA1PR12MB7126:EE_ X-MS-Office365-Filtering-Correlation-Id: 07ddaa2b-2771-4d2f-3944-08df09c6941e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|36860700016|23010399003|82310400026|56012099006|10067099003|11063799006|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)(1800799024)(376014)(36860700016)(23010399003)(82310400026)(56012099006)(10067099003)(11063799006)(18002099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 2yTI1F8T0vVtHAsgABW80Wfyfli7WI8Wsk4hEv6ewOtqqkxUdI8v9NBDu3GIWThPH2CznDcZRgt5gKDrj4++UHSKusnd/91JviRIxooDNKiZcKLrJ6IXnE3tO2Kz11AtCjucPynOV2xVF1hHyxXComHen/hOd7eUuOUwg+c1lFUfLTi2ErqpLyqUwtOI2/ufIcpE1wUPrSfmNr5rQKut77OxTpwSwLjF3btOT+IAMQ0rghziyOyJeHbQC0AYnCJxcnWNcZdpMVEZ+Bd+gbj6YZuohPR21Ep81Ta5phjauK05M7mJuQH6kp0fJpFmZQyNDTKMbwumaBPu6vxtKqzGYE+ZnUBOYkMsxuSsJate/jW4sDrF2EFnuyb0KYtwGBtp4MFynpmIRcNhdU9ztMWg/yBda+4sCBgp7dyiQ1lfoV92m8G6jbKsJDRWx+uKk0Kw X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 Sep 2026 14:21:00.2626 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 07ddaa2b-2771-4d2f-3944-08df09c6941e 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: BN6PEPF0000006F.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA1PR12MB7126 Hi all, This set increases the max MCA bank count (MAX_NR_BANKS) to the architectural limit. Patch 1 is a bug fix that came out of code review. Patch 2 is a pre-patch to avoid a bug for systems with more than 64 MCA banks per thread. Patch 3 is where MAX_NR_BANKS is updated. The commit message includes some memory stats like the last time we bumped up MAX_NR_BANKS. Originally, I intended to include additional patches to consolidate and dynamically allocate many of the per-CPU and per-bank structures. These still need more work. So I thought to send just this small set to start. Also, I figure a smaller set would be easier for backporting for those who want the feature support but don't want the additional rework. Thanks, Yazen Yazen Ghannam (3): x86/mce/amd: Fix bank lookup in amd_mce_usable_address() x86/mce/amd: Convert bank_map to a bitmap x86/mce: Increase MAX_NR_BANKS to 255 arch/x86/include/asm/mce.h | 2 +- arch/x86/kernel/cpu/mce/amd.c | 9 +++++---- arch/x86/kernel/cpu/mce/core.c | 6 ------ arch/x86/kernel/cpu/mce/intel.c | 2 +- 4 files changed, 7 insertions(+), 12 deletions(-) base-commit: cee9395acd8043be0644b25c34bfa86623f2b935 -- 2.43.0