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Shenoy" , "Mario Limonciello" , Perry Yuan , , , , , "Shyam Sundar S K" Subject: [PATCH v5 13/13] platform/x86/amd: hfi: Add debugfs support Date: Sun, 27 Oct 2024 21:02:51 -0500 Message-ID: <20241028020251.8085-14-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-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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: BL02EPF00021F69:EE_|CH3PR12MB7546:EE_ X-MS-Office365-Filtering-Correlation-Id: 676cfc29-54fc-424c-922e-08dcf6f4b669 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|36860700013|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?JqcXLXzNOB6tgEvsEUM9nzrC6V9ZwiUzRr8FA/jihbDJJDOQc+Q5H6ma/dAb?= =?us-ascii?Q?0PEI8KYHsy6JdBbx9hhDfhjcuAn2rpL8kOD92o0svo0ARjIVX6qkHrAQcSqk?= =?us-ascii?Q?8jLKHyp4WC7iQn7BIpjoFpt4TchpTwZZIRXk/Gpz83qA853Ajy2vkSzpmaeg?= =?us-ascii?Q?LL5cBMoApRCYX3D2RB/4Dg+6zDpt1X7a1whz4tjSSVcy/p0M293BsmhJPyML?= =?us-ascii?Q?HXVa/YI0ARJWu/sZYB+DlHljLtbAaLTne8SVrAzeS66Rj5cTZkR4Eft/buUa?= =?us-ascii?Q?PutGsBrU1PIri1WPgvJpqSaXB6LC0eKzoGZ3Y6HujDk0E0t3IKIej1OVzjsZ?= =?us-ascii?Q?2Yipiozk/m9/dC8CAGx7qh8kDuHMSJFYZRdCdpHSJvfo31Ac5+60VSyBdkvy?= =?us-ascii?Q?/GPfvkfZEYLHkGaNMx1/LsR8g868po1BjLpbLI1mR8InIzBAWSQMxVhL3qiN?= =?us-ascii?Q?q/TjgWrpxEGq/6crntUrOMP+fvfDOsbHomJEDhtT+E2HRBECXwq5Ba53JFu4?= =?us-ascii?Q?WqpsAZhLzUjvddekG80PDcpEBomQpbWq8F3MCV6iNXql9gOKzuHyTfaeAfQ5?= =?us-ascii?Q?F69KAhwE+dqhHdMNpQi5M122o3ggqLkoFaWGtWjtu6o1ibvZtbOlCDz9CZ5H?= =?us-ascii?Q?G9v85ninZg+OJ7pEvg3Xb3zKerpO1H9WJX29KIgZ588RSwhbkIorxQCgK2/y?= =?us-ascii?Q?1NS+FSV9BPQwDaG1oKlTyLuO9njlpWfcn+kNVMWjDysPIt3o4sOAE0i3ZpPv?= =?us-ascii?Q?BHXp7eXWbfcpwVrQuRzwtFCOprdYq3phsmHQLKV/mjZtHKdi3KZtersmK2MY?= =?us-ascii?Q?WA4hcZnmdZg+nJW2VQ+S4mWo39bmMRIntXDDDwXuIMb4jnA0sFN5JghoLbF7?= =?us-ascii?Q?vMowHJ1xQPvRrZbA45CLo/cgaBR0g0FAA0AXkPmhLd65Vw7w7zW/VvV1zeqe?= =?us-ascii?Q?2PcO3n01lCa5vHOq3dhHj9+PaFl+KqDHJoEvPbA5kQM0DOb1cddqi86vVYsy?= =?us-ascii?Q?cxfiYNvN7cV4Lnl2fjt6rCMaYcBtJZA6oJWCCVkjxY116ghXA8J2WFRiIdgO?= =?us-ascii?Q?tLRXyXobtKW4fFpScwmLkXPL0xJ4/e1+uDukrNYDZ9HiR+ddb5j/auwtGm7h?= =?us-ascii?Q?wleVbkkZfvhT775gvMMOGMiLUXD2y21xyKNWNiFfJc7GdozVRsxL9i7mluGh?= =?us-ascii?Q?c1M41fUbv3ryx/CFGjFAy13cbNL7XHgVFmV7FxZtNbgWecgQR1k7unv/V8AM?= =?us-ascii?Q?zCJN+LLvtT1eTRvTr6rN4peIteh4I5c0NiTa7IadvnApiyOEFh9to8TamI/R?= =?us-ascii?Q?wrkgc5fSUdUZ4txCk0Z/VLUd5zWjd0dUDlRoImr3wo9jhNdIuHvv1S3p1Xfm?= =?us-ascii?Q?xMdOCzlbNw7L/f5N5ME/L+f7IBLF14pskrqepqf+ROHExj4wAg=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)(1800799024)(376014)(36860700013)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Oct 2024 02:03:27.1967 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 676cfc29-54fc-424c-922e-08dcf6f4b669 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: BL02EPF00021F69.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB7546 Content-Type: text/plain; charset="utf-8" Add a dump of the class and capabilities table to debugfs to assist with debugging scheduler issues. Reviewed-by: Gautham R. Shenoy Signed-off-by: Mario Limonciello --- drivers/platform/x86/amd/hfi/hfi.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/drivers/platform/x86/amd/hfi/hfi.c b/drivers/platform/x86/amd/= hfi/hfi.c index 50407ab805169..839007684b049 100644 --- a/drivers/platform/x86/amd/hfi/hfi.c +++ b/drivers/platform/x86/amd/hfi/hfi.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include @@ -75,6 +76,8 @@ struct amd_hfi_data { void __iomem *pcc_comm_addr; struct acpi_subtable_header *pcct_entry; struct amd_shmem_info *shmem; + + struct dentry *dbgfs_dir; }; =20 /** @@ -239,6 +242,8 @@ static void amd_hfi_remove(struct platform_device *pdev) { struct amd_hfi_data *dev =3D platform_get_drvdata(pdev); =20 + debugfs_remove_recursive(dev->dbgfs_dir); + mutex_destroy(&dev->lock); } =20 @@ -396,6 +401,27 @@ static int amd_hfi_metadata_parser(struct platform_dev= ice *pdev, return ret; } =20 +static int class_capabilities_show(struct seq_file *s, void *unused) +{ + int cpu, idx; + + seq_puts(s, "CPU #\tWLC\tPerf\tEff\n"); + for_each_present_cpu(cpu) { + struct amd_hfi_cpuinfo *hfi_cpuinfo =3D per_cpu_ptr(&amd_hfi_cpuinfo, cp= u); + + seq_printf(s, "%d", cpu); + for (idx =3D 0; idx < hfi_cpuinfo->nr_class; idx++) { + seq_printf(s, "\t%d\t%d\t%d\n", + idx, + hfi_cpuinfo->amd_hfi_classes[idx].perf, + hfi_cpuinfo->amd_hfi_classes[idx].eff); + } + } + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(class_capabilities); + static int amd_hfi_pm_resume(struct device *dev) { int ret, cpu; @@ -469,6 +495,10 @@ static int amd_hfi_probe(struct platform_device *pdev) =20 schedule_work(&sched_amd_hfi_itmt_work); =20 + amd_hfi_data->dbgfs_dir =3D debugfs_create_dir("amd_hfi", arch_debugfs_di= r); + debugfs_create_file("class_capabilities", 0644, amd_hfi_data->dbgfs_dir, = pdev, + &class_capabilities_fops); + return 0; } =20 --=20 2.43.0