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Fri, 10 Jan 2020 01:57:06 +0000 From: Yazen Ghannam To: linux-edac@vger.kernel.org Cc: Yazen Ghannam , linux-kernel@vger.kernel.org, bp@suse.de, tony.luck@intel.com, x86@kernel.org Subject: [PATCH 2/5] EDAC/mce_amd: Always load on SMCA systems Date: Fri, 10 Jan 2020 01:56:48 +0000 Message-Id: <20200110015651.14887-3-Yazen.Ghannam@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200110015651.14887-1-Yazen.Ghannam@amd.com> References: <20200110015651.14887-1-Yazen.Ghannam@amd.com> Content-Type: text/plain X-ClientProxiedBy: SN6PR08CA0036.namprd08.prod.outlook.com (2603:10b6:805:66::49) To BN6PR12MB1667.namprd12.prod.outlook.com (2603:10b6:405:4::18) MIME-Version: 1.0 Received: from ethanolx80b6host.amd.com (165.204.78.1) by SN6PR08CA0036.namprd08.prod.outlook.com (2603:10b6:805:66::49) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2623.12 via Frontend Transport; Fri, 10 Jan 2020 01:57:05 +0000 X-Mailer: git-send-email 2.17.1 X-Originating-IP: [165.204.78.1] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 64b86fb8-88e9-4d2d-3afd-08d7957064da X-MS-TrafficTypeDiagnostic: BN6PR12MB1378:|BN6PR12MB1378: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:1417; 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Return success early if the system supports the SMCA feature. Signed-off-by: Yazen Ghannam --- drivers/edac/mce_amd.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/edac/mce_amd.c b/drivers/edac/mce_amd.c index aa6ea53f7d14..524c63fdad42 100644 --- a/drivers/edac/mce_amd.c +++ b/drivers/edac/mce_amd.c @@ -1189,6 +1189,11 @@ static int __init mce_amd_init(void) if (!fam_ops) return -ENOMEM; + if (boot_cpu_has(X86_FEATURE_SMCA)) { + xec_mask = 0x3f; + goto out; + } + switch (c->x86) { case 0xf: fam_ops->mc0_mce = k8_mc0_mce; @@ -1237,11 +1242,8 @@ static int __init mce_amd_init(void) case 0x17: case 0x18: - xec_mask = 0x3f; - if (!boot_cpu_has(X86_FEATURE_SMCA)) { - printk(KERN_WARNING "Decoding supported only on Scalable MCA processors.\n"); - goto err_out; - } + pr_warn("Decoding supported only on Scalable MCA processors.\n"); + goto err_out; break; default: @@ -1249,6 +1251,7 @@ static int __init mce_amd_init(void) goto err_out; } +out: pr_info("MCE: In-kernel MCE decoding enabled.\n"); mce_register_decode_chain(&amd_mce_dec_nb); -- 2.17.1