From patchwork Wed Nov 29 06:54:34 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: 13472270 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="zH4/wNIY" Received: from NAM11-CO1-obe.outbound.protection.outlook.com (mail-co1nam11on2051.outbound.protection.outlook.com [40.107.220.51]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E4B8A1735; Tue, 28 Nov 2023 22:55:24 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=ansy1M6vfdaJ9qwtID0fJPhk6a5rEFG/3sgvRzKJRrswzV73XA3sceNucsi1h63vNeg2WSbI4HddNqDaklCwmgh5zyflwDuicq8IaHy4q8Yr4ZTPdBFPMhSQ1Kt4ID62P5MOfb1Qos/nP2qUkqNAT+GLgJnhXENUOb9LhdLuS5Y42bNtbCqxUVHAPJ1Oiatte7ykILwPUav7ajNT6mjVIWorMjdUXgDHLaf3KG3xeNe+oXvJInFaeNlR+S1Iiq527BJEcEl3O/W1q3TdC2DlQRTR4fEByd0SwdL0P3JAvt3P1kata5xYbMaHqYp4DPeewutIiIv0e3q9Qbel9UXK8Q== 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=PxucxfDQdZKt4AwASrDVKfEBTnWdsqudDVSNFlm7pzw=; b=Rt+G3D6hG+3Fm7ylfl6UT+3QcSe6N9Bfeup7tFzULFsm+6kxL9AykRGJhL9RuT91QXofUMBDa1J+YbH6PAu2kH6OTHBDxbYd333deJg2dlkG4KN3A2jSgkokKifPqmUWXfByb+aVCL76neuYifRCwvChvkQDTNI7Nxt+G+GJeg9BDFKfgFHqIva7zg3wRFgygPgi8T5ComEt8p3k1NhEgFSQaDwwzc6otPMa/Pz+M+81jAjaki/otLPOXf1LjbLgZm0iM7mOSqehwwS4JyX0CF0vJJZPn6z5lepBcQrSrYAnXaZ7oL25r7Q5znhlIGQbSLMpZzIxjzRwEZrpBHj2+w== 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 (0) 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=PxucxfDQdZKt4AwASrDVKfEBTnWdsqudDVSNFlm7pzw=; b=zH4/wNIYLIAUKftU7mmtSZdH9RR1QBZ445GBlcp4KpgqoPpuyFI6rRuz5SNnh4RhalhTWteeyZNMjXZjzogGBIV8EQ6Yw5leC25TxQNJhzuHPqausimB3uNWGHgqouMTlIQPzSbhgqfxCOg9uwGF9TXoMpYBiVBEWBtZDUFjvdo= Received: from PR3P192CA0009.EURP192.PROD.OUTLOOK.COM (2603:10a6:102:56::14) by DS0PR12MB8245.namprd12.prod.outlook.com (2603:10b6:8:f2::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7025.29; Wed, 29 Nov 2023 06:55:22 +0000 Received: from SN1PEPF0002BA51.namprd03.prod.outlook.com (2603:10a6:102:56:cafe::fe) by PR3P192CA0009.outlook.office365.com (2603:10a6:102:56::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7046.22 via Frontend Transport; Wed, 29 Nov 2023 06:55:21 +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 SN1PEPF0002BA51.mail.protection.outlook.com (10.167.242.74) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7046.17 via Frontend Transport; Wed, 29 Nov 2023 06:55:21 +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; Wed, 29 Nov 2023 00:55:16 -0600 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 Subject: [PATCH V11 4/7] cpufreq: Add a notification message that the highest perf has changed Date: Wed, 29 Nov 2023 14:54:34 +0800 Message-ID: <20231129065437.290183-5-li.meng@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231129065437.290183-1-li.meng@amd.com> References: <20231129065437.290183-1-li.meng@amd.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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-TrafficTypeDiagnostic: SN1PEPF0002BA51:EE_|DS0PR12MB8245:EE_ X-MS-Office365-Filtering-Correlation-Id: ccbb551f-047b-467d-dd60-08dbf0a82795 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)(136003)(346002)(39860400002)(396003)(230922051799003)(451199024)(1800799012)(82310400011)(186009)(64100799003)(46966006)(40470700004)(36840700001)(26005)(83380400001)(81166007)(6636002)(47076005)(426003)(336012)(82740400003)(86362001)(4326008)(8936002)(7696005)(70206006)(36860700001)(316002)(70586007)(110136005)(966005)(54906003)(15650500001)(5660300002)(8676002)(7416002)(478600001)(356005)(2906002)(36756003)(40480700001)(41300700001)(6666004)(16526019)(1076003)(2616005)(40460700003)(226483002)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Nov 2023 06:55:21.1737 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ccbb551f-047b-467d-dd60-08dbf0a82795 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: SN1PEPF0002BA51.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB8245 ACPI 6.5 section 8.4.6.1.1.1 specifies that Notify event 0x85 can be emmitted to cause the the OSPM to re-evaluate the highest performance register. Add support for this event. Tested-by: Oleksandr Natalenko Reviewed-by: Mario Limonciello Reviewed-by: Huang Rui Signed-off-by: Meng Li Link: https://uefi.org/specs/ACPI/6.5/05_ACPI_Software_Programming_Model.html#processor-device-notification-values Reviewed-by: Perry Yuan --- drivers/acpi/processor_driver.c | 6 ++++++ drivers/cpufreq/cpufreq.c | 13 +++++++++++++ include/linux/cpufreq.h | 5 +++++ 3 files changed, 24 insertions(+) diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index 4bd16b3f0781..29b2fb68a35d 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_highest_perf(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/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 934d35f570b7..14a4cbc6dd05 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -2717,6 +2717,19 @@ void cpufreq_update_limits(unsigned int cpu) } EXPORT_SYMBOL_GPL(cpufreq_update_limits); +/** + * cpufreq_update_highest_perf - Update highest performance for a given CPU. + * @cpu: CPU to update the highest performance for. + * + * Invoke the driver's ->update_highest_perf callback if present + */ +void cpufreq_update_highest_perf(unsigned int cpu) +{ + if (cpufreq_driver->update_highest_perf) + cpufreq_driver->update_highest_perf(cpu); +} +EXPORT_SYMBOL_GPL(cpufreq_update_highest_perf); + /********************************************************************* * BOOST * *********************************************************************/ diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 1c5ca92a0555..f62257b2a42f 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -235,6 +235,7 @@ int cpufreq_get_policy(struct cpufreq_policy *policy, unsigned int cpu); void refresh_frequency_limits(struct cpufreq_policy *policy); void cpufreq_update_policy(unsigned int cpu); void cpufreq_update_limits(unsigned int cpu); +void cpufreq_update_highest_perf(unsigned int cpu); bool have_governor_per_policy(void); bool cpufreq_supports_freq_invariance(void); struct kobject *get_governor_parent_kobj(struct cpufreq_policy *policy); @@ -263,6 +264,7 @@ static inline bool cpufreq_supports_freq_invariance(void) return false; } static inline void disable_cpufreq(void) { } +static inline void cpufreq_update_highest_perf(unsigned int cpu) { } #endif #ifdef CONFIG_CPU_FREQ_STAT @@ -380,6 +382,9 @@ struct cpufreq_driver { /* Called to update policy limits on firmware notifications. */ void (*update_limits)(unsigned int cpu); + /* Called to update highest performance on firmware notifications. */ + void (*update_highest_perf)(unsigned int cpu); + /* optional */ int (*bios_limit)(int cpu, unsigned int *limit);