From patchwork Mon Oct 30 06:34:00 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: 741524 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 3AC0DED2 for ; Mon, 30 Oct 2023 06:35:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="a8DNGrK/" Received: from NAM11-BN8-obe.outbound.protection.outlook.com (mail-bn8nam11on2041.outbound.protection.outlook.com [40.107.236.41]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5B49AC5; Sun, 29 Oct 2023 23:35:31 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=j/GrRISnfaSBfzYq9EKt1pjlKNeHIEThaz/C9poAwoFOSzOEXR4lQzK7tM0gwrPhFIPd9ZLA6iuyOe+QbKG82yabWmEEmksqm1ePPn+UTOIr7tAMcDJSGt1UdZ6fF+puM6JJHGzhT/nVgIOv3Fav06CdxaYO0lvB93/MYETYCJnLobzKv/Iy6zSGMZkEibA6xhZdn79xw62Ld1wAOoiWsWGbUNAJ7KLhyZAr6GWha0L+SHpXFKiL+8HePCqu/QlHu9H4iI+g8Q2rCeKF/uyD4ZQxWdTT60XXYJnqngPgFHUbKMuZDRNb6QTVVJ1twghSskCGj/AQOjupIkhdDyeAMA== 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=iEG57ub2uyja18iSbeWFZGvSQXhoZh8gCxORPlmvouA=; b=i8YSC8WKWwfrMRCkdC0tp+JofKGi3lTqZQUI9tIFnnjI0Msw48+9Kf+ZbO+0npe5wr5GZGmB31eUXOebU/O08HUaxU+2VGIeXnSjRuB3FUhjlzn4or50pXd32Oc5HVNDABOt1r5mwgZeFI7bAygK4EBP0T8+8qaZuaCmMS/97kAZLYu18yHswJKMhuGHbFGO32WHLyS+lWRFpFPDnbrTx3PKcreEsvQtxNO5gJW0MmdLPwAGE56caDPcyOgc5ASsx+NiFMM6eugWvTTVxXDe47Bll9yUNLgNhFu8vfiLVtfCQX07uDLT1H4TK0WYXfpNzmfweUJ2NwhZRCXYG+rGGQ== 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=iEG57ub2uyja18iSbeWFZGvSQXhoZh8gCxORPlmvouA=; b=a8DNGrK/pSyQt8GPwtC1glxlonrTXTB1zFC2bnXqFxehloNUMg8y+R4qrjYegtgp7gAJrG8EytrA/WTN3yc5VqvQVPcyDjTfbyn9uMjgdhfI8H9wTh+QcEpx1aFMRopun2lqMBav4n1MIA8j19z98jHU0x0E6prhAYhpZZkhdH8= Received: from BL1PR13CA0206.namprd13.prod.outlook.com (2603:10b6:208:2be::31) by SJ2PR12MB8941.namprd12.prod.outlook.com (2603:10b6:a03:542::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6933.28; Mon, 30 Oct 2023 06:35:29 +0000 Received: from BL6PEPF0001AB74.namprd02.prod.outlook.com (2603:10b6:208:2be:cafe::9d) by BL1PR13CA0206.outlook.office365.com (2603:10b6:208:2be::31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6954.15 via Frontend Transport; Mon, 30 Oct 2023 06:35:29 +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 BL6PEPF0001AB74.mail.protection.outlook.com (10.167.242.167) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.6933.15 via Frontend Transport; Mon, 30 Oct 2023 06:35:28 +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 15.1.2507.32; Mon, 30 Oct 2023 01:35:23 -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 Subject: [PATCH V10 4/7] cpufreq: Add a notification message that the highest perf has changed Date: Mon, 30 Oct 2023 14:34:00 +0800 Message-ID: <20231030063403.3502816-5-li.meng@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231030063403.3502816-1-li.meng@amd.com> References: <20231030063403.3502816-1-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: BL6PEPF0001AB74:EE_|SJ2PR12MB8941:EE_ X-MS-Office365-Filtering-Correlation-Id: 49dc4ece-0bd9-4d46-ab80-08dbd912685a 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)(136003)(376002)(346002)(396003)(39860400002)(230922051799003)(82310400011)(186009)(1800799009)(64100799003)(451199024)(36840700001)(40470700004)(46966006)(40460700003)(2906002)(15650500001)(7416002)(5660300002)(41300700001)(4326008)(8936002)(8676002)(36756003)(40480700001)(86362001)(82740400003)(316002)(110136005)(54906003)(6636002)(36860700001)(47076005)(356005)(81166007)(70206006)(70586007)(83380400001)(426003)(1076003)(16526019)(336012)(2616005)(7696005)(966005)(478600001)(26005)(6666004)(226483002)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Oct 2023 06:35:28.5999 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 49dc4ece-0bd9-4d46-ab80-08dbd912685a 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: BL6PEPF0001AB74.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ2PR12MB8941 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 --- 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 4bc15634d49c..e66b040b0c61 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);