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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 CO1PEPF000044F6.mail.protection.outlook.com (10.167.241.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7228.0 via Frontend Transport; Fri, 19 Jan 2024 09:05:55 +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 15.1.2507.34; Fri, 19 Jan 2024 03:05:39 -0600 From: Meng Li To: "Rafael J . Wysocki" , Borislav Petkov , 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 , Perry Yuan Subject: [PATCH V14 4/7] cpufreq: Add a notification message that the highest perf has changed Date: Fri, 19 Jan 2024 17:04:59 +0800 Message-ID: <20240119090502.3869695-5-li.meng@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240119090502.3869695-1-li.meng@amd.com> References: <20240119090502.3869695-1-li.meng@amd.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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: CO1PEPF000044F6:EE_|CH3PR12MB9393:EE_ X-MS-Office365-Filtering-Correlation-Id: ac528c5d-d7bc-47c4-fbfe-08dc18cdd878 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:(13230031)(4636009)(376002)(39860400002)(346002)(136003)(396003)(230922051799003)(1800799012)(451199024)(64100799003)(186009)(82310400011)(46966006)(40470700004)(36840700001)(16526019)(2616005)(336012)(26005)(83380400001)(426003)(1076003)(7696005)(54906003)(36860700001)(47076005)(7416002)(110136005)(4326008)(8676002)(5660300002)(8936002)(15650500001)(966005)(478600001)(6666004)(2906002)(6636002)(82740400003)(70586007)(70206006)(316002)(86362001)(36756003)(356005)(81166007)(41300700001)(40480700001)(40460700003)(226483002)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Jan 2024 09:05:55.7531 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ac528c5d-d7bc-47c4-fbfe-08dc18cdd878 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: CO1PEPF000044F6.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB9393 BIOS issues the notify 0x85 to OS that the highest performance changed. And it will affect the ranking of the preferred core. AMD-pstate driver will set the priority of cores based on the preferred core ranking. Tested-by: Oleksandr Natalenko Reviewed-by: Mario Limonciello Reviewed-by: Huang Rui Reviewed-by: Perry Yuan Signed-off-by: Meng Li Link: https://uefi.org/specs/ACPI/6.5/05_ACPI_Software_Programming_Model.html#processor-device-notification-values --- drivers/acpi/processor_driver.c | 6 ++++++ include/linux/cpufreq.h | 1 + 2 files changed, 7 insertions(+) diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index 4bd16b3f0781..67db60eda370 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -27,6 +27,7 @@ #define ACPI_PROCESSOR_NOTIFY_PERFORMANCE 0x80 #define ACPI_PROCESSOR_NOTIFY_POWER 0x81 #define ACPI_PROCESSOR_NOTIFY_THROTTLING 0x82 +#define ACPI_PROCESSOR_NOTIFY_HIGEST_PERF_CHANGED 0x85 MODULE_AUTHOR("Paul Diefenbaugh"); MODULE_DESCRIPTION("ACPI Processor Driver"); @@ -83,6 +84,11 @@ static void acpi_processor_notify(acpi_handle handle, u32 event, void *data) acpi_bus_generate_netlink_event(device->pnp.device_class, dev_name(&device->dev), event, 0); break; + case ACPI_PROCESSOR_NOTIFY_HIGEST_PERF_CHANGED: + cpufreq_update_limits(pr->id); + acpi_bus_generate_netlink_event(device->pnp.device_class, + dev_name(&device->dev), event, 0); + break; default: acpi_handle_debug(handle, "Unsupported event [0x%x]\n", event); break; diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index afda5f24d3dd..9bebeec24abb 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -263,6 +263,7 @@ static inline bool cpufreq_supports_freq_invariance(void) return false; } static inline void disable_cpufreq(void) { } +static inline void cpufreq_update_limits(unsigned int cpu) { } #endif #ifdef CONFIG_CPU_FREQ_STAT