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Shenoy" , "Mario Limonciello" , Perry Yuan , , , , , "Shyam Sundar S K" , Perry Yuan Subject: [PATCH v5 09/13] platform/x86: hfi: add power management callback Date: Sun, 27 Oct 2024 21:02:47 -0500 Message-ID: <20241028020251.8085-10-mario.limonciello@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241028020251.8085-1-mario.limonciello@amd.com> References: <20241028020251.8085-1-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: BL02EPF00021F6E:EE_|SN7PR12MB7276:EE_ X-MS-Office365-Filtering-Correlation-Id: d3b86400-e6ad-41c9-f066-08dcf6f4b338 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|36860700013|82310400026|1800799024|376014; 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)(82310400026)(1800799024)(376014); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Oct 2024 02:03:21.8449 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d3b86400-e6ad-41c9-f066-08dcf6f4b338 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: BL02EPF00021F6E.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN7PR12MB7276 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 70ddde37f283f..c8fe03d0c9ccd 100644 --- a/drivers/platform/x86/amd/hfi/hfi.c +++ b/drivers/platform/x86/amd/hfi/hfi.c @@ -388,6 +388,38 @@ 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}, { } @@ -434,6 +466,7 @@ 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,