Message ID | 20241025171459.1093-3-mario.limonciello@amd.com |
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State | New |
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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 BL02EPF0001A101.mail.protection.outlook.com (10.167.241.132) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8093.14 via Frontend Transport; Fri, 25 Oct 2024 17:15:31 +0000 Received: from AUS-P9-MLIMONCI.xilinx.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 15.1.2507.39; Fri, 25 Oct 2024 12:15:29 -0500 From: Mario Limonciello <mario.limonciello@amd.com> To: Borislav Petkov <bp@alien8.de> CC: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, "Dave Hansen" <dave.hansen@linux.intel.com>, "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@kernel.org>, "H . Peter Anvin" <hpa@zytor.com>, "Rafael J . Wysocki" <rafael@kernel.org>, "Gautham R . Shenoy" <gautham.shenoy@amd.com>, Mario Limonciello <mario.limonciello@amd.com>, Perry Yuan <perry.yuan@amd.com>, Brijesh Singh <brijesh.singh@amd.com>, Peter Zijlstra <peterz@infradead.org>, Li RongQing <lirongqing@baidu.com>, "open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <linux-kernel@vger.kernel.org>, "open list:ACPI" <linux-acpi@vger.kernel.org>, "open list:AMD PSTATE DRIVER" <linux-pm@vger.kernel.org>, Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Subject: [PATCH v4 2/5] x86/cpufeatures: Add feature bits for AMD heterogeneous processor Date: Fri, 25 Oct 2024 12:14:56 -0500 Message-ID: <20241025171459.1093-3-mario.limonciello@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241025171459.1093-1-mario.limonciello@amd.com> References: <20241025171459.1093-1-mario.limonciello@amd.com> Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: <linux-acpi.vger.kernel.org> List-Subscribe: <mailto:linux-acpi+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-acpi+unsubscribe@vger.kernel.org> 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: BL02EPF0001A101:EE_|SN7PR12MB7251:EE_ X-MS-Office365-Filtering-Correlation-Id: 291f8b33-edf5-4402-3460-08dcf518a15e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|7416014|36860700013|82310400026; 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:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(1800799024)(376014)(7416014)(36860700013)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Oct 2024 17:15:31.4312 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 291f8b33-edf5-4402-3460-08dcf518a15e 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: BL02EPF0001A101.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN7PR12MB7251 |
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x86 Heterogeneous design identification
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diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h index aa63437a677c0..51b38bc667960 100644 --- a/arch/x86/include/asm/cpufeatures.h +++ b/arch/x86/include/asm/cpufeatures.h @@ -474,6 +474,7 @@ #define X86_FEATURE_CLEAR_BHB_HW (21*32+ 3) /* BHI_DIS_S HW control enabled */ #define X86_FEATURE_CLEAR_BHB_LOOP_ON_VMEXIT (21*32+ 4) /* Clear branch history at vmexit using SW loop */ #define X86_FEATURE_AMD_FAST_CPPC (21*32 + 5) /* Fast CPPC */ +#define X86_FEATURE_AMD_HETEROGENEOUS_CORES (21*32 + 6) /* Heterogeneous Core Topology */ /* * BUG word(s) diff --git a/arch/x86/kernel/cpu/scattered.c b/arch/x86/kernel/cpu/scattered.c index 1db2bb81a3847..307a917415343 100644 --- a/arch/x86/kernel/cpu/scattered.c +++ b/arch/x86/kernel/cpu/scattered.c @@ -52,6 +52,7 @@ static const struct cpuid_bit cpuid_bits[] = { { X86_FEATURE_PERFMON_V2, CPUID_EAX, 0, 0x80000022, 0 }, { X86_FEATURE_AMD_LBR_V2, CPUID_EAX, 1, 0x80000022, 0 }, { X86_FEATURE_AMD_LBR_PMC_FREEZE, CPUID_EAX, 2, 0x80000022, 0 }, + { X86_FEATURE_AMD_HETEROGENEOUS_CORES, CPUID_EAX, 30, 0x80000026, 0 }, { 0, 0, 0, 0, 0 } };