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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; Received: from SATLEXMB04.amd.com (165.204.84.17) by CO1NAM11FT006.mail.protection.outlook.com (10.13.174.246) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.5186.14 via Frontend Transport; Tue, 26 Apr 2022 13:06:32 +0000 Received: from sindhu.amdval.net (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 15.1.2375.24; Tue, 26 Apr 2022 08:06:25 -0500 From: Sandipan Das To: , , CC: , , , , , , , , , , , , , , , , , , Subject: [PATCH v3 2/7] x86/msr: Add PerfCntrGlobal* registers Date: Tue, 26 Apr 2022 18:35:33 +0530 Message-ID: X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: c23d46a7-dff9-4948-18ca-08da278595dd X-MS-TrafficTypeDiagnostic: MN2PR12MB3376:EE_ X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Apr 2022 13:06:32.2900 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c23d46a7-dff9-4948-18ca-08da278595dd 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=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT006.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR12MB3376 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add MSR definitions that will be used to enable the new AMD Performance Monitoring Version 2 (PerfMonV2) features. These include: * Performance Counter Global Control (PerfCntrGlobalCtl) * Performance Counter Global Status (PerfCntrGlobalStatus) * Performance Counter Global Status Clear (PerfCntrGlobalStatusClr) The new Performance Counter Global Control and Status MSRs provide an interface for enabling or disabling multiple counters at the same time and for testing overflow without probing the individual registers for each PMC. The availability of these registers is indicated through the PerfMonV2 feature bit of CPUID leaf 0x80000022 EAX. Signed-off-by: Sandipan Das --- arch/x86/include/asm/msr-index.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h index 9e2e7185fc1d..a040f4af93c9 100644 --- a/arch/x86/include/asm/msr-index.h +++ b/arch/x86/include/asm/msr-index.h @@ -527,6 +527,11 @@ #define AMD_CPPC_DES_PERF(x) (((x) & 0xff) << 16) #define AMD_CPPC_ENERGY_PERF_PREF(x) (((x) & 0xff) << 24) +/* AMD Performance Counter Global Status and Control MSRs */ +#define MSR_AMD64_PERF_CNTR_GLOBAL_STATUS 0xc0000300 +#define MSR_AMD64_PERF_CNTR_GLOBAL_CTL 0xc0000301 +#define MSR_AMD64_PERF_CNTR_GLOBAL_STATUS_CLR 0xc0000302 + /* Fam 17h MSRs */ #define MSR_F17H_IRPERF 0xc00000e9 -- 2.34.1