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client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by DS3PEPF0000C381.mail.protection.outlook.com (10.167.23.11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8230.7 via Frontend Transport; Sat, 30 Nov 2024 15:20:56 +0000 Received: from AUS-P9-MLIMONCI.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 15.1.2507.39; Sat, 30 Nov 2024 09:20:54 -0600 From: Mario Limonciello To: Borislav Petkov , Hans de Goede , =?utf-8?q?Ilpo_J=C3=A4rvinen?= CC: , "Gautham R . Shenoy" , "Mario Limonciello" , Perry Yuan , , , , , "Shyam Sundar S K" , Perry Yuan Subject: [PATCH v7 08/12] platform/x86: hfi: add power management callback Date: Sat, 30 Nov 2024 09:20:19 -0600 Message-ID: <20241130152023.684-9-mario.limonciello@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241130152023.684-1-mario.limonciello@amd.com> References: <20241130152023.684-1-mario.limonciello@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: DS3PEPF0000C381:EE_|SJ2PR12MB7798:EE_ X-MS-Office365-Filtering-Correlation-Id: 912c675c-6309-4b83-e420-08dd115296a0 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|36860700013|376014|1800799024|82310400026; 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:(13230040)(36860700013)(376014)(1800799024)(82310400026); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Nov 2024 15:20:56.7501 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 912c675c-6309-4b83-e420-08dd115296a0 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: DS3PEPF0000C381.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ2PR12MB7798 From: Perry Yuan Introduces power management callbacks for the `amd_hfi` driver. Specifically, the `suspend` and `resume` callbacks have been added to handle the necessary operations during system low power states and wake-up. Reviewed-by: Gautham R. Shenoy Signed-off-by: Perry Yuan Co-developed-by: Mario Limonciello Signed-off-by: Mario Limonciello --- drivers/platform/x86/amd/hfi/hfi.c | 33 ++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/drivers/platform/x86/amd/hfi/hfi.c b/drivers/platform/x86/amd/hfi/hfi.c index 922a9ff0d447a..80ccc50ee0914 100644 --- a/drivers/platform/x86/amd/hfi/hfi.c +++ b/drivers/platform/x86/amd/hfi/hfi.c @@ -380,6 +380,38 @@ static int amd_hfi_metadata_parser(struct platform_device *pdev, return ret; } +static int amd_hfi_pm_resume(struct device *dev) +{ + int ret, cpu; + + for_each_online_cpu(cpu) { + ret = amd_hfi_set_state(cpu, true); + if (ret < 0) { + dev_err(dev, "failed to enable workload class config: %d\n", ret); + return ret; + } + } + + return 0; +} + +static int amd_hfi_pm_suspend(struct device *dev) +{ + int ret, cpu; + + for_each_online_cpu(cpu) { + ret = amd_hfi_set_state(cpu, false); + if (ret < 0) { + dev_err(dev, "failed to disable workload class config: %d\n", ret); + return ret; + } + } + + return 0; +} + +static DEFINE_SIMPLE_DEV_PM_OPS(amd_hfi_pm_ops, amd_hfi_pm_suspend, amd_hfi_pm_resume); + static const struct acpi_device_id amd_hfi_platform_match[] = { {"AMDI0104", 0}, { } @@ -428,6 +460,7 @@ static struct platform_driver amd_hfi_driver = { .driver = { .name = AMD_HFI_DRIVER, .owner = THIS_MODULE, + .pm = &amd_hfi_pm_ops, .acpi_match_table = ACPI_PTR(amd_hfi_platform_match), }, .probe = amd_hfi_probe,