From patchwork Thu Apr 25 08:07:57 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Perry Yuan X-Patchwork-Id: 792563 Received: from NAM04-DM6-obe.outbound.protection.outlook.com (mail-dm6nam04on2070.outbound.protection.outlook.com [40.107.102.70]) (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 C071074432; Thu, 25 Apr 2024 08:08:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.102.70 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714032525; cv=fail; b=NFRFDZH/XThkXI1xm6DpTcOdF5Cs+1A5pZgsdRnMgYIV4Aenefr+c1UbMmVZ6hwmofxjBr3aSTV9LrEluVubvCyN9j7dfgwul9RsFvvN1AiVrCy1LYAKwZxF7tWHd7tBxK2dr2oUg+n6bSgMU0YHBCXPFRAXoGOmdmbmROdmjpo= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714032525; c=relaxed/simple; bh=g6WD0ANrhaMgE1Y1p/jcF0wVTNB8YbtDmxbug3MTWRU=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=pK63hyjO0VR7x8kRdg/K89n0pyQWAE53ztPUeajHc/KXTYA0Yw6RGi5I+H4VPo4p9L5JzXk5Wvy95JnSmENzSF517G/YPcFmMTMsoGKCJpYM3W6nRiv7duxhHgpPXsbL+tO4b9lz6BHI28vQd7yus9a31kJNWAIurxdbTbaywTw= 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=jXHfMgVh; arc=fail smtp.client-ip=40.107.102.70 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="jXHfMgVh" ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=ZpTNETFrWEJAUHsmJe/5IyXKO90XkhZLnyaun7DhHlFNj/y9bPBuaenh8rNHmIqGPxk1CS2lHhDtkWUyeSN1Gj+eOT11HuC8CQd6vDR2iZiXOiAz4DvMz9FN19Jyt6sAh5tpkjM8sSEPFAvoxS95tXRuPVg39VxveafKC6aJf72CRd6WmRs7zLWP/MXP6Vky4CEIW0umtdei6r6KfMOLN5xWWSn7y2QKrWYoSFoUQYflpgasCmZ/Wwium2STLR8rC5FTkOKu045McrI7901e4QGU/5NVz/qkLyWAqeEI+bUNaGMaxMUkTpUq5e1ov6GKC6mVW3V1XkJXZlQrNZ70Yg== 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=kQelncCBs748RSNbzkjYxC5MXTdjjmvR9tO/qsHHwQY=; b=mp0FJnysCLbk1bwWzNrRT+8w0rHl/TYYyoHIhWU+gUeYm33qpahsFvCgOwlqg14GGLshyUoPadVLGCZUxpMrdij5GxIdrNO5wQ7sYXoWPgMuIUO50MYiXs2EVDLl9iVyhOQzv7IqjHOWeAJ4bVxH6C7M7kOWHnIECmraljVAbrclDxYIpuaL0ig0QltnFEqk8QH07h+SS5OOy3G+C0XrupkNd2vqfZxflFSHWVqwk8p8DsyUpT9QsYJg3s/f/xQ3MymNsIBeNifFVYBCAenw4GBIyiMghXcjfZFabJOhaeE9SWbn+ZJsvicQUwJRaSEDDJQ10ESTTD2iyQtRTdbSrw== 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=kQelncCBs748RSNbzkjYxC5MXTdjjmvR9tO/qsHHwQY=; b=jXHfMgVhX5Iv/BGu0whxkdT34naimqaERTJZYcR8rnhJ46j0SSWGYRPPlryuipHpJKjFPTkMUn6Oi+AF8WXyS5wUlpTlION15eNDTD1kct4ZaILlb7+rzuCaDxZigy++zsEY+RgVxaXfnqToitUiYybNbELDJUVe210sHUVp1oo= Received: from CH0PR04CA0075.namprd04.prod.outlook.com (2603:10b6:610:74::20) by CY8PR12MB7170.namprd12.prod.outlook.com (2603:10b6:930:5a::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7472.44; Thu, 25 Apr 2024 08:08:41 +0000 Received: from CH3PEPF00000012.namprd21.prod.outlook.com (2603:10b6:610:74:cafe::e2) by CH0PR04CA0075.outlook.office365.com (2603:10b6:610:74::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7519.26 via Frontend Transport; Thu, 25 Apr 2024 08:08:40 +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 CH3PEPF00000012.mail.protection.outlook.com (10.167.244.117) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7519.0 via Frontend Transport; Thu, 25 Apr 2024 08:08:40 +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 15.1.2507.35; Thu, 25 Apr 2024 03:08:37 -0500 From: Perry Yuan To: , , , , , , CC: , , , , , Subject: [PATCH v12 7/8] cppc_acpi: print error message if CPPC is unsupported Date: Thu, 25 Apr 2024 16:07:57 +0800 Message-ID: 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: CH3PEPF00000012:EE_|CY8PR12MB7170:EE_ X-MS-Office365-Filtering-Correlation-Id: 7642be05-70db-41cb-8144-08dc64feeb20 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)(1800799015)(376005)(82310400014)(36860700004); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Apr 2024 08:08:40.8389 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 7642be05-70db-41cb-8144-08dc64feeb20 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: CH3PEPF00000012.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY8PR12MB7170 The amd-pstate driver can fail when _CPC objects are not supported by the CPU. However, the current error message is ambiguous (see below) and there is no clear way for attributing the failure of the amd-pstate driver to the lack of CPPC support. [ 0.477523] amd_pstate: the _CPC object is not present in SBIOS or ACPI disabled Fix this by adding an debug message to notify the user if the amd-pstate driver failed to load due to CPPC not be supported by the CPU Reviewed-by: Mario Limonciello Reviewed-by: Gautham R. Shenoy Tested-by: Dhananjay Ugwekar Signed-off-by: Perry Yuan Acked-by: Huang Rui --- 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 a40b6f3946ef..1d857978f5f4 100644 --- a/drivers/acpi/cppc_acpi.c +++ b/drivers/acpi/cppc_acpi.c @@ -686,8 +686,10 @@ 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. */