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Tue, 11 May 2021 15:26:18 +0000 From: Naveen Krishna Chatradhi To: linux-edac@vger.kernel.org, x86@kernel.org Cc: linux-kernel@vger.kernel.org, bp@alien8.de, mingo@redhat.com, mchehab@kernel.org, Mukul Joshi Subject: [PATCH 2/3] x86/MCE/AMD: Helper function to check UMC v2 Date: Tue, 11 May 2021 20:55:37 +0530 Message-Id: <20210511152538.148084-2-nchatrad@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210511152538.148084-1-nchatrad@amd.com> References: <20210511152538.148084-1-nchatrad@amd.com> Content-Type: text/plain X-Originating-IP: [165.204.156.251] X-ClientProxiedBy: MA1PR0101CA0004.INDPRD01.PROD.OUTLOOK.COM (2603:1096:a00:21::14) To DM6PR12MB4388.namprd12.prod.outlook.com (2603:10b6:5:2a9::10) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from milan-ETHANOL-X.amd.com (165.204.156.251) by MA1PR0101CA0004.INDPRD01.PROD.OUTLOOK.COM (2603:1096:a00:21::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4108.25 via Frontend Transport; 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Signed-off-by: Mukul Joshi Reviewed-by: John Clements Reviewed-by: Yazen Ghannam --- arch/x86/include/asm/mce.h | 2 ++ arch/x86/kernel/cpu/mce/amd.c | 6 ++++++ 2 files changed, 8 insertions(+) diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h index cf7f35fdf2c8..8cbe7221a253 100644 --- a/arch/x86/include/asm/mce.h +++ b/arch/x86/include/asm/mce.h @@ -357,6 +357,7 @@ extern int mce_threshold_remove_device(unsigned int cpu); void mce_amd_feature_init(struct cpuinfo_x86 *c); int umc_normaddr_to_sysaddr(u64 norm_addr, u16 nid, u8 umc, u64 *sys_addr); +bool is_smca_umc_v2(int bank); #else @@ -366,6 +367,7 @@ static inline bool amd_mce_is_memory_error(struct mce *m) { return false; }; static inline void mce_amd_feature_init(struct cpuinfo_x86 *c) { } static inline int umc_normaddr_to_sysaddr(u64 norm_addr, u16 nid, u8 umc, u64 *sys_addr) { return -EINVAL; }; +static inline bool is_smca_umc_v2(int bank) { return false; }; #endif static inline void mce_hygon_feature_init(struct cpuinfo_x86 *c) { return mce_amd_feature_init(c); } diff --git a/arch/x86/kernel/cpu/mce/amd.c b/arch/x86/kernel/cpu/mce/amd.c index 055f3a0acf5e..41718e3111f2 100644 --- a/arch/x86/kernel/cpu/mce/amd.c +++ b/arch/x86/kernel/cpu/mce/amd.c @@ -1542,3 +1542,9 @@ int mce_threshold_create_device(unsigned int cpu) mce_threshold_remove_device(cpu); return err; } + +bool is_smca_umc_v2(int bank) +{ + return (smca_get_bank_type(bank) == SMCA_UMC_V2); +} +EXPORT_SYMBOL_GPL(is_smca_umc_v2); -- 2.17.1