From patchwork Fri Oct 13 02:57:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Meng, Li \(Jassmine\)" X-Patchwork-Id: 734055 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 32EF4A54 for ; Fri, 13 Oct 2023 02:58:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="0mz+fOC0" Received: from NAM04-BN8-obe.outbound.protection.outlook.com (mail-bn8nam04on2077.outbound.protection.outlook.com [40.107.100.77]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 578CCBB; Thu, 12 Oct 2023 19:58:16 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=MRh9booojb2PUi8c/v6xiwYTBmts0pnICAUgRgCfDggaWkm06n1jVV2d8mN2Vd8kD3qReRv23n6Zpl8oDXvuT+q0QoeRtNv0WIQ1KRDxNIwy3nmgy8DRaQ8FUgBkc9jQE9liVbbTEh27Wgmf8OYd+nUb99kNIwpVRZWDLWvIRG5PnkJxhTCXVGg2NPG+DXcT1mle7H2IfuYugHPyCcW13srkJCucOQ/WNoyTeeMc80+Hoc7F9hAd56umaIEdUjqvw0yhVh1Uu7aWv2SHByFjsN5DDlyMTRwUXNfofS5C8diLAF88qc11lEkCaHxUwuOtzT3NEZevRt3AdX+FQFyObA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=AlF2WKiSUPyODRJ7ueMUccEPh7maCKY1Dj6+XRqyp7A=; b=RGTtfBBRENrPUDtU75chx5P7fyIIToJ+nXRx15fEqhGbdXIX2+5JOSzTKwiyRRUBXbLxmfey2zGxvIoxm/+XjlhXVWyw7evwrslZqLTpKdPQDsTMFkfl08ZB8i35bdz3AY9u8UTmzzufU9BCWcGC6C0kcdQgtdpLlZTvsekYji8ZZbbp4LjKaVpf+Js7rTIy5MorDLbRx5AQHa9IiT8A82WP0LZpCl0s34tkmxk0yEBFh1WzR+9ccHmgoTYfG6qA28KiyTOP7MVUs3qaZiDeGRZYFs4+JTV6EDb1iWns1zg5OJ4+WeAEv969l07mgFUx8zqWxG6K+/mxhCBCpMHQ/g== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=intel.com smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=AlF2WKiSUPyODRJ7ueMUccEPh7maCKY1Dj6+XRqyp7A=; b=0mz+fOC0BAYWWiyiVlUfLDPlXUoUjwcyfCgNm5ttURPba8H+VMmV9+E24teDt4iRPTbCZkj8ImcfE+xmfQAPhtNLkLTWGRWmM82piaKKM5I1NM4vUO1Ww/Hr/kqByisHC5RW+PeiwLaDoU2+5cSGoI16rOvQfBKdD9JnLgJ3FPI= Received: from MW4P221CA0007.NAMP221.PROD.OUTLOOK.COM (2603:10b6:303:8b::12) by PH7PR12MB5853.namprd12.prod.outlook.com (2603:10b6:510:1d4::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6863.44; Fri, 13 Oct 2023 02:58:12 +0000 Received: from CO1PEPF000044F5.namprd05.prod.outlook.com (2603:10b6:303:8b:cafe::86) by MW4P221CA0007.outlook.office365.com (2603:10b6:303:8b::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6886.27 via Frontend Transport; Fri, 13 Oct 2023 02:58:11 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; 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 CO1PEPF000044F5.mail.protection.outlook.com (10.167.241.75) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.6838.22 via Frontend Transport; Fri, 13 Oct 2023 02:58:11 +0000 Received: from jasmine-meng.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 15.1.2507.27; Thu, 12 Oct 2023 21:58:05 -0500 From: Meng Li To: "Rafael J . Wysocki" , Huang Rui CC: , , , , Shuah Khan , , "Nathan Fontenot" , Deepak Sharma , Alex Deucher , Mario Limonciello , Shimmer Huang , "Perry Yuan" , Xiaojian Du , Viresh Kumar , Borislav Petkov , "Oleksandr Natalenko" , Meng Li , Wyes Karny Subject: [PATCH V9 2/7] acpi: cppc: Add get the highest performance cppc control Date: Fri, 13 Oct 2023 10:57:36 +0800 Message-ID: <20231013025741.3332520-3-li.meng@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231013025741.3332520-1-li.meng@amd.com> References: <20231013025741.3332520-1-li.meng@amd.com> Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] 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: CO1PEPF000044F5:EE_|PH7PR12MB5853:EE_ X-MS-Office365-Filtering-Correlation-Id: 540aa639-883f-452d-9732-08dbcb983cb0 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: BI5K7RfbfAnmQLVAy2m5ZqE03TXMrhqZOdlOcjqq5RbeivNCFFlyv+v0+i+Gag9ee6R+kEd9lurPMZOAUimSHRdIwiiCVgv10bBoVG0p9rgDR0wXMGUsiItPd+PBnst2ak6IF2adDMqkoChLDQ73pLrHXRX4fpYOqUMLEK6ezx0L+u5VDtKNdiMg80hed0ozaX38WBKC6GpUL1N8h6/7gLiMFLEb8UBKbGXDSpqdHAqoq0kgbGpkRJuOF44hE49z2orLRYr9J++r3dXcGyGXV4DeJxkiA6fsVcsNgd3KpqGIPKKtLjVuOf99mCRC4UnInTvxBcR02qe+o/aMsS3Dp0Y7y41xHXCon4x9qvQmygPjNQPetJysgh9pkAaUh0dhTpFamKE6tTKPZqpP0ka536w0yGsKWH3y2YyyE02e+E14t6E+yMJPM1LaoK6Ehm1nm9YpxgVDxcJF+ard5YsQbAF6cWWIDHSmIi+sYG5C9h4WsBAq0i09DAGhwF4pfSkCQvZMqjPKPZuNgnoSjOB/Ljx7ks+NYsykIR7Jzp9WJdh0ybZjpHlzwUR3udBoggGugXCE4mODzrWgDTajlLi5BvT2nVrzBj1l7S69FR1xZ6qcjL1slwzlyTT2Qg41lSM70SiLO1DSbZrTapCza20+Y9QygGDSpeKEzEthwpgn9YsPzcb9L07QjFtZV+3EDvVoQ/r6I4UyDcBp3g5L0H1nQ7RaTB9tb62AhjKev7EHIwM40EVkRvyXLOG8t7ZVLn1aIzC4cNKpAmLfBBnUZmtXyekHKodmMd+kdF/FmChs12I= 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:(13230031)(4636009)(376002)(346002)(396003)(136003)(39860400002)(230922051799003)(451199024)(186009)(82310400011)(64100799003)(1800799009)(40470700004)(46966006)(36840700001)(426003)(26005)(336012)(70206006)(40480700001)(54906003)(5660300002)(36756003)(36860700001)(6666004)(478600001)(47076005)(86362001)(7696005)(41300700001)(1076003)(40460700003)(356005)(316002)(6636002)(82740400003)(70586007)(7416002)(966005)(8936002)(4326008)(2906002)(81166007)(8676002)(2616005)(110136005)(16526019)(15583001)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Oct 2023 02:58:11.5324 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 540aa639-883f-452d-9732-08dbcb983cb0 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: CO1PEPF000044F5.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB5853 X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Add support for getting the highest performance to the generic CPPC driver. This enables downstream drivers such as amd-pstate to discover and use these values. Please refer to the ACPI_Spec for details on continuous performance control of CPPC. Tested-by: Oleksandr Natalenko Reviewed-by: Mario Limonciello Reviewed-by: Wyes Karny Acked-by: Huang Rui Signed-off-by: Meng Li Link: https://uefi.org/specs/ACPI/6.5/08_Processor_Configuration_and_Control.html?highlight=cppc#highest-performance --- drivers/acpi/cppc_acpi.c | 13 +++++++++++++ include/acpi/cppc_acpi.h | 5 +++++ 2 files changed, 18 insertions(+) diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c index 7ff269a78c20..ad388a0e8484 100644 --- a/drivers/acpi/cppc_acpi.c +++ b/drivers/acpi/cppc_acpi.c @@ -1154,6 +1154,19 @@ int cppc_get_nominal_perf(int cpunum, u64 *nominal_perf) return cppc_get_perf(cpunum, NOMINAL_PERF, nominal_perf); } +/** + * cppc_get_highest_perf - Get the highest performance register value. + * @cpunum: CPU from which to get highest performance. + * @highest_perf: Return address. + * + * Return: 0 for success, -EIO otherwise. + */ +int cppc_get_highest_perf(int cpunum, u64 *highest_perf) +{ + return cppc_get_perf(cpunum, HIGHEST_PERF, highest_perf); +} +EXPORT_SYMBOL_GPL(cppc_get_highest_perf); + /** * cppc_get_epp_perf - Get the epp register value. * @cpunum: CPU from which to get epp preference value. diff --git a/include/acpi/cppc_acpi.h b/include/acpi/cppc_acpi.h index 6126c977ece0..c0b69ffe7bdb 100644 --- a/include/acpi/cppc_acpi.h +++ b/include/acpi/cppc_acpi.h @@ -139,6 +139,7 @@ struct cppc_cpudata { #ifdef CONFIG_ACPI_CPPC_LIB extern int cppc_get_desired_perf(int cpunum, u64 *desired_perf); extern int cppc_get_nominal_perf(int cpunum, u64 *nominal_perf); +extern int cppc_get_highest_perf(int cpunum, u64 *highest_perf); extern int cppc_get_perf_ctrs(int cpu, struct cppc_perf_fb_ctrs *perf_fb_ctrs); extern int cppc_set_perf(int cpu, struct cppc_perf_ctrls *perf_ctrls); extern int cppc_set_enable(int cpu, bool enable); @@ -165,6 +166,10 @@ static inline int cppc_get_nominal_perf(int cpunum, u64 *nominal_perf) { return -ENOTSUPP; } +static inline int cppc_get_highest_perf(int cpunum, u64 *highest_perf) +{ + return -ENOTSUPP; +} static inline int cppc_get_perf_ctrs(int cpu, struct cppc_perf_fb_ctrs *perf_fb_ctrs) { return -ENOTSUPP;