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Wysocki" , Viresh Kumar , Shuah Khan , "Borislav Petkov" , Peter Zijlstra , Ingo Molnar , Giovanni Gherdovich , CC: Deepak Sharma , Alex Deucher , Mario Limonciello , Steven Noonan , Nathan Fontenot , Jinzhou Su , Xiaojian Du , , , Huang Rui Subject: [PATCH v3 15/21] cpupower: initial AMD P-state capability Date: Fri, 29 Oct 2021 21:02:35 +0800 Message-ID: <20211029130241.1984459-16-ray.huang@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211029130241.1984459-1-ray.huang@amd.com> References: <20211029130241.1984459-1-ray.huang@amd.com> 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: 409315bb-6dcd-404e-4e9e-08d99adca5df X-MS-TrafficTypeDiagnostic: BYAPR12MB3416: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:1923; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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:(4636009)(46966006)(36840700001)(508600001)(186003)(54906003)(4326008)(356005)(7696005)(7416002)(82310400003)(8676002)(81166007)(1076003)(2616005)(110136005)(426003)(70206006)(336012)(26005)(70586007)(5660300002)(16526019)(36860700001)(6666004)(47076005)(316002)(36756003)(2906002)(86362001)(8936002)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Oct 2021 13:04:31.5224 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 409315bb-6dcd-404e-4e9e-08d99adca5df 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: BN8NAM11FT018.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR12MB3416 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If kernel starts the amd-pstate module, the cpupower will initial the capability flag as CPUPOWER_CAP_AMD_PSTATE. And once amd-pstate capability is set, it won't need to set legacy ACPI relative capabilities anymore. Signed-off-by: Huang Rui --- tools/power/cpupower/utils/helpers/cpuid.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/tools/power/cpupower/utils/helpers/cpuid.c b/tools/power/cpupower/utils/helpers/cpuid.c index 72eb43593180..2a6dc104e76b 100644 --- a/tools/power/cpupower/utils/helpers/cpuid.c +++ b/tools/power/cpupower/utils/helpers/cpuid.c @@ -149,6 +149,19 @@ int get_cpu_info(struct cpupower_cpu_info *cpu_info) if (ext_cpuid_level >= 0x80000008 && cpuid_ebx(0x80000008) & (1 << 4)) cpu_info->caps |= CPUPOWER_CAP_AMD_RDPRU; + + if (cpupower_amd_pstate_enabled()) { + cpu_info->caps |= CPUPOWER_CAP_AMD_PSTATE; + + /* + * If AMD P-state is enabled, the firmware will treat + * AMD P-state function as high priority. + */ + cpu_info->caps &= ~CPUPOWER_CAP_AMD_CPB; + cpu_info->caps &= ~CPUPOWER_CAP_AMD_CPB_MSR; + cpu_info->caps &= ~CPUPOWER_CAP_AMD_HW_PSTATE; + cpu_info->caps &= ~CPUPOWER_CAP_AMD_PSTATEDEF; + } } if (cpu_info->vendor == X86_VENDOR_INTEL) { -- 2.25.1