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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=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by DS3PEPF000099DA.mail.protection.outlook.com (10.167.17.11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7452.22 via Frontend Transport; Thu, 4 Apr 2024 15:14:23 +0000 Received: from quartz-7b1chost.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Thu, 4 Apr 2024 10:14:11 -0500 From: Yazen Ghannam To: CC: , , , , , Yazen Ghannam Subject: [PATCH v2 06/16] x86/mce/amd: Prep DFR handler before enabling banks Date: Thu, 4 Apr 2024 10:13:49 -0500 Message-ID: <20240404151359.47970-7-yazen.ghannam@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240404151359.47970-1-yazen.ghannam@amd.com> References: <20240404151359.47970-1-yazen.ghannam@amd.com> Precedence: bulk X-Mailing-List: linux-edac@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS3PEPF000099DA:EE_|MW5PR12MB5623:EE_ X-MS-Office365-Filtering-Correlation-Id: 21cbd44e-b3bc-4a8a-741b-08dc54b9e936 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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This is done as part of SMCA configuration. Currently, the deferred error interrupt handler is set up after SMCA configuration. Move the deferred error interrupt handler set up before SMCA configuration. This ensures the kernel is ready to receive the interrupts before the hardware is configured to send them. Signed-off-by: Yazen Ghannam --- Notes: Link: https://lkml.kernel.org/r/20231118193248.1296798-11-yazen.ghannam@amd.com v1->v2: * No change. arch/x86/kernel/cpu/mce/amd.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/cpu/mce/amd.c b/arch/x86/kernel/cpu/mce/amd.c index 3093fed06194..e8e78d91082b 100644 --- a/arch/x86/kernel/cpu/mce/amd.c +++ b/arch/x86/kernel/cpu/mce/amd.c @@ -589,6 +589,9 @@ static void deferred_error_interrupt_enable(struct cpuinfo_x86 *c) u32 low = 0, high = 0; int def_offset = -1, def_new; + if (!mce_flags.succor) + return; + if (rdmsr_safe(MSR_CU_DEF_ERR, &low, &high)) return; @@ -768,6 +771,7 @@ void mce_amd_feature_init(struct cpuinfo_x86 *c) u32 low = 0, high = 0, address = 0; int offset = -1; + deferred_error_interrupt_enable(c); for (bank = 0; bank < this_cpu_read(mce_num_banks); ++bank) { if (mce_flags.smca) @@ -794,9 +798,6 @@ void mce_amd_feature_init(struct cpuinfo_x86 *c) offset = prepare_threshold_block(bank, block, address, offset, high); } } - - if (mce_flags.succor) - deferred_error_interrupt_enable(c); } /* -- 2.34.1