From patchwork Sun Feb 4 03:26:13 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Yuan, Perry" X-Patchwork-Id: 770258 Received: from NAM11-BN8-obe.outbound.protection.outlook.com (mail-bn8nam11on2041.outbound.protection.outlook.com [40.107.236.41]) (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 58A71BE65; Sun, 4 Feb 2024 03:26:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.236.41 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707017211; cv=fail; b=tHbJgX+BpvjbzSFypDczODERk+ho3jYF6paARwVNY1Zwg9KwhdSIrzFehJYKCgUYW+jH/SQGq8IglubSnOg0r4yLyM1STmX9HaISYHKHQl/LjNpcbaGexq/za6Hm91o9vLw6hCfoksb1JkZ3zEwhCSndh9ObGj+TqEofW/Mztm8= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707017211; c=relaxed/simple; bh=/faDvRJteyXqZPRAcoZKXoQ2KPMAH3/GzFGupp3EFhk=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=gUsVqYVq5UfA3q3jc7Ai45JteruSYbEelXCduaairLnsBwPZP8Ubsdr7opvw1g1v6KIj1rmRw3vC7cJ7b1pqPYlsrzs5Dy9wTkrkDQmMHP81UsVqh2taUaPPHVTWgkJybn9+eNUfSZsI7mLylmbnOwVQ5cIMOGpP/GD5GG6JjvA= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com; spf=fail smtp.mailfrom=amd.com; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b=2ZvMvRf9; arc=fail smtp.client-ip=40.107.236.41 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=amd.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="2ZvMvRf9" ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=oQbHLX8705aHGr6o6JMjh7TvPOCYWkO0UzojxDct6X4mvo3AWyWAlN9JeZ20CCudWetaMAYaIdv7FWuH5dHuMEQCfNGqMS8SSzqgwXdhk4abgcwKqlKc+2pOflV2n/Y7/LNc6aEiejJibmI0XHmLSZGDxTCQG1SadI/MuIIYwAsabi1AiFq286DFgewaWj4FyhD5MmJj2u1dgK3QYCO/lFPdCW/4sQLGRGt8TH7g0aDFZq4s3JvEp9ACbB7CMD0wdndwpGfrMBqjuNKt0Lh4tL5sLpROHQR9VgYNgB8xcRLnvLyfWdfGq+2U94285+L7w8CJbThfgU4ui9ysOGi0tQ== 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=Gy9SNyIn/2SjYTda9oDK5zWZekhmoOyMuf9jAWZS5R8=; b=QcSS5kL71XiVvvf9CSCzhzrpcbZtsVq1r8OPy4yD7fZYRDh8sUkQTmH1ivztwWY4iXMpqPTJwDdhrVszAyTr58x8i8/jrIaYx8Lcy+ycCr9NGeiqSLQO0GXEkRSBkN3DLqQ4vMuRwmxuhDalz8GfpxoSbUpn7x7XeTkdbfKowowRnyJpr2m6JJGjV4j+LWmweCQcbpzdqbHCeo91iFGLFv7DeBTgOB+sLRu0oFcTdisO1oWzzOZtUleXnP0LavRFrDIHfLreiRcsMx5w+KICba9mei70H+xd9ttLRMpWzKlWkLbIiaoyip3fna30uj5Ifpf8hbdbHnMYjZWN/VyFaQ== 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=Gy9SNyIn/2SjYTda9oDK5zWZekhmoOyMuf9jAWZS5R8=; b=2ZvMvRf9OELDMF4gSa59R1rChlOTbPmgs8xVEErgCyld/33FlLbQLQ7r+fXPvtfOmpQ5LyhMOhVGjyvg6RGRSuy/WWnrUAP0w/RUYed7BPYt2IINSUz6CYDrI1IYVsk8zlVZvODvPsD18k2lEA3hZxSkpNIrOGjYveU8QPpTziA= Received: from CYZPR17CA0009.namprd17.prod.outlook.com (2603:10b6:930:8c::28) by LV2PR12MB6016.namprd12.prod.outlook.com (2603:10b6:408:14e::5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7270.14; Sun, 4 Feb 2024 03:26:46 +0000 Received: from CY4PEPF0000FCC5.namprd03.prod.outlook.com (2603:10b6:930:8c:cafe::66) by CYZPR17CA0009.outlook.office365.com (2603:10b6:930:8c::28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7249.32 via Frontend Transport; Sun, 4 Feb 2024 03:26:45 +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 CY4PEPF0000FCC5.mail.protection.outlook.com (10.167.242.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7181.13 via Frontend Transport; Sun, 4 Feb 2024 03:26:45 +0000 Received: from pyuan-Chachani-VN.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 15.1.2507.34; Sat, 3 Feb 2024 21:26:42 -0600 From: Perry Yuan To: , , , , , CC: , , , , , Subject: [PATCH v3 5/6] cppc_acpi: print error message if CPPC is unsupported Date: Sun, 4 Feb 2024 11:26:13 +0800 Message-ID: <2343f6c652bbcfad9cb462b5fd05fdb49e833e1f.1707016927.git.perry.yuan@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: 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: CY4PEPF0000FCC5:EE_|LV2PR12MB6016:EE_ X-MS-Office365-Filtering-Correlation-Id: 3e3d6dd2-6ff9-419c-6e02-08dc25311d6a 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)(396003)(376002)(136003)(346002)(39860400002)(230922051799003)(1800799012)(451199024)(82310400011)(64100799003)(186009)(46966006)(36840700001)(40480700001)(16526019)(2616005)(41300700001)(86362001)(36860700001)(36756003)(478600001)(7696005)(6666004)(26005)(47076005)(83380400001)(426003)(336012)(82740400003)(356005)(81166007)(54906003)(6636002)(2906002)(15650500001)(5660300002)(316002)(110136005)(4326008)(8676002)(8936002)(44832011)(70206006)(70586007)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Feb 2024 03:26:45.5813 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 3e3d6dd2-6ff9-419c-6e02-08dc25311d6a 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: CY4PEPF0000FCC5.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV2PR12MB6016 to be more clear what is wrong with CPPC when pstate driver failed to load which has dependency on the CPPC capabilities. Add one more debug message to notify user if CPPC is not supported by the CPU, then it will be easy to find out what need to fix for pstate driver loading issue. [ 0.477523] amd_pstate: the _CPC object is not present in SBIOS or ACPI disabled Above message is not clear enough to verify whether CPPC is not supported. Reviewed-by: Mario Limonciello Signed-off-by: Perry Yuan --- drivers/acpi/cppc_acpi.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c index a50e70abdf19..e23a84f4a50a 100644 --- a/drivers/acpi/cppc_acpi.c +++ b/drivers/acpi/cppc_acpi.c @@ -679,8 +679,10 @@ int acpi_cppc_processor_probe(struct acpi_processor *pr) if (!osc_sb_cppc2_support_acked) { pr_debug("CPPC v2 _OSC not acked\n"); - if (!cpc_supported_by_cpu()) + if (!cpc_supported_by_cpu()) { + pr_debug("CPPC is not supported by the CPU\n"); return -ENODEV; + } } /* Parse the ACPI _CPC table for this CPU. */