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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 SJ1PEPF000023D0.mail.protection.outlook.com (10.167.244.4) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8093.14 via Frontend Transport; Mon, 21 Oct 2024 18:03:23 +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; Mon, 21 Oct 2024 13:03:21 -0500 From: Mario Limonciello To: Borislav Petkov , Hans de Goede , =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= CC: , "Gautham R . Shenoy" , "Mario Limonciello" , Perry Yuan , , , , , "Shyam Sundar S K" , Perry Yuan Subject: [PATCH v4 09/13] platform/x86: hfi: add power management callback Date: Mon, 21 Oct 2024 13:02:48 -0500 Message-ID: <20241021180252.3531-10-mario.limonciello@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241021180252.3531-1-mario.limonciello@amd.com> References: <20241021180252.3531-1-mario.limonciello@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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: SJ1PEPF000023D0:EE_|CY8PR12MB7362:EE_ X-MS-Office365-Filtering-Correlation-Id: 329e59bd-5729-4a9f-d6ba-08dcf1faa7a4 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|82310400026|1800799024|36860700013; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?/STAUvap7c06xNrzXp4tYnbjEHnT8sNce7vRjY6mFjCAwNJBO7OtHqCwOCRH?= =?us-ascii?Q?C2pzlUvL6o63xWP+l4OIzSUk9owfdhwbSE7lTf7T9iblhSleyrmdblDAOLY3?= =?us-ascii?Q?i805hBoY7dN2nqx6Mz8lqsAR5RkF8IZG02LZr8wfgnkUp2G27Ot5t24/baL5?= =?us-ascii?Q?qNlnEIzMTjmy3CWzWQfB5PgnDXokLYAGn4p9fmnKbEnjnWy1M7PgUYTfcRMM?= =?us-ascii?Q?M38xllqsktEScqH1JyaFCtI54ZIGDvIiLCOapXSrNtttgS96UJM3b9++2864?= =?us-ascii?Q?Ib8bJ3oJ56GaM+ov7ur2TKTkVWCmkUyKk1MP9eM2RfJghBh5+h/3dFE9nAEL?= =?us-ascii?Q?a/CDZnLtgUCzjlnpJ2B53dBruPlstQXSSlClHo8/2fsumgZmMQHs4S1tSQEb?= =?us-ascii?Q?VQkQ2gp8/r+DGKz9jDYVy19PYZDURhRVBebMOBVpk7ACQ5scRe/9CRk0QcGY?= =?us-ascii?Q?WEe7BjE0fU4vdB+cj/kcqYWhUMkbduwGJUJEZjnNs0EB0dV5jUvFng8nTIy1?= =?us-ascii?Q?llWxbLzI1ie9KDRgiPPVJio0wS0TFJL8XQfJBGKEvKFljpBa0VQYdLrmYZFT?= =?us-ascii?Q?ejwJqwB/k6MeZb2ivTR9i4DE/MpZ/f/uGG4us8quareLoTaAfr/LuIDy2K4J?= =?us-ascii?Q?O9w01GRWupLh5NojTdbqVxiYq8JuZXhmmIuSNXd7ohc76AriQf3a9s6eYhYa?= =?us-ascii?Q?FUxaAvxwNOxYQqEc55/CYed6Qe+HptNoaXefJe0cCmuoDHNtZsrUwtIEJGKl?= =?us-ascii?Q?PNP3mKHz+h9RTou3bM0wt9vK6fU3k0M90m1/GKJOcklexyDKjO9py1ennUQs?= =?us-ascii?Q?QY1mRiW436ette/LR9rbZpo+dngI+XsRhJaYVxnptXxM8bh/3h3esnoCvXSZ?= =?us-ascii?Q?H4ZxC77hNHpUo8ldV/nNUOAqJktSd2nukk9UTusSOJ4IMXhaSROn2KSXL5vh?= =?us-ascii?Q?EhTQBT0hA8vOsx1ZC7PbvrtmxorUF4Q+QnpqgZv3oAkbr/M0Pn2w5y/WJp3B?= =?us-ascii?Q?pd59l5QypTdkZy1ShBPZwvcJbWNgWIMZ+zG/74dxaKVwWrBGasBlXxBf3eX1?= =?us-ascii?Q?JSgETI9rmvVa7nN/e7WIE6jgJvZNe+4tPnP1vipQSh6LKaXNAl5r6k95JhQA?= =?us-ascii?Q?BwQI6mhQ0W10shLOY6Iy+7u9XxkJOVCjFt4X9rD0KjmSLNjZSJ0nJulUQCOG?= =?us-ascii?Q?Zu0+gvZg5DS8OLcZeNeYBwAg8oEgEdTR9wc3Esyxa0E3JOrfcNnTv0rotuLt?= =?us-ascii?Q?RgZfTCJHfgbMomVTRh+KLqAM4fCxjcOkqnl6dL6Umm8xL5KeFxMGKH82EHIS?= =?us-ascii?Q?To8lmlwXydcD1RoQ5Tw7M3qoQ9JT2UpNhO//5IariPBj6NKyKUT9f7tluQ7i?= =?us-ascii?Q?kjFnUttmTP5eldsbfsfRQgvYLr/MKM/OqnkkTqd9HCLi58V0cQ=3D=3D?= 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)(376014)(82310400026)(1800799024)(36860700013);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Oct 2024 18:03:23.4921 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 329e59bd-5729-4a9f-d6ba-08dcf1faa7a4 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: SJ1PEPF000023D0.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY8PR12MB7362 Content-Type: text/plain; charset="utf-8" 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. Signed-off-by: Perry Yuan Co-developed-by: Mario Limonciello Signed-off-by: Mario Limonciello Reviewed-by: Gautham R. Shenoy --- v3->v4: * Use for_each_online_cpu (Gautham) v2->v3: * Whitespace (Ilpo) --- 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_dev= ice *pdev, return ret; } =20 +static int amd_hfi_pm_resume(struct device *dev) +{ + int ret, cpu; + + for_each_online_cpu(cpu) { + ret =3D 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 =3D 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_hf= i_pm_resume); + static const struct acpi_device_id amd_hfi_platform_match[] =3D { { "AMDI0104", 0}, { } @@ -434,6 +466,7 @@ static struct platform_driver amd_hfi_driver =3D { .driver =3D { .name =3D AMD_HFI_DRIVER, .owner =3D THIS_MODULE, + .pm =3D &amd_hfi_pm_ops, .acpi_match_table =3D ACPI_PTR(amd_hfi_platform_match), }, .probe =3D amd_hfi_probe, --=20 2.43.0