From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E595EC43467 for ; Wed, 14 Oct 2020 18:12:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7C7F12223F for ; Wed, 14 Oct 2020 18:12:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=dell.com header.i=@dell.com header.b="Z8kIVvVN"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=Dell.onmicrosoft.com header.i=@Dell.onmicrosoft.com header.b="BXq1aNpb" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387627AbgJNSMY (ORCPT ); Wed, 14 Oct 2020 14:12:24 -0400 Received: from mx0b-00154904.pphosted.com ([148.163.137.20]:44808 "EHLO mx0b-00154904.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727369AbgJNSMY (ORCPT ); Wed, 14 Oct 2020 14:12:24 -0400 Received: from pps.filterd (m0170396.ppops.net [127.0.0.1]) by mx0b-00154904.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 09EI8JKP022729; Wed, 14 Oct 2020 14:11:05 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dell.com; h=from : to : cc : subject : date : message-id : references : in-reply-to : content-type : content-transfer-encoding : mime-version; s=smtpout1; bh=Htk0EO368NZziO/oPPGxiyyq0FlnD/L+I2kkNidW3W4=; b=Z8kIVvVNHakcDWJpnVC51pXPX+nLYVC9sxzvWDKb/ez+Nd66Zzj5F+GhyeN/CuT7nmLy vPngPEY5qDdjwtp2HDeS49MOn0Ewihe7+TD5rR6PbU6Z+geEYttQkCTmq1pLQeS4p/Qr gDC7b5ThQ6IFxp76lAaUdkCp9SLG7aYlboZqJ+2Um/4moUfEKwHUYGr07wwfxSUL8loa 7ehwcUTXEk+gsexJJaXYN66nUyeZ9qUEwcMfDjVVAO2EoaASnzctQHYgvkUglyGYfjFS Io7XADSjxYc4ewMkr5QsiXAWxfca6+9Jw0CAbeTHTdq8sGaGwUVz2ZaVY038IV+/g7qj dg== Received: from mx0a-00154901.pphosted.com (mx0b-00154901.pphosted.com [67.231.157.37]) by mx0b-00154904.pphosted.com with ESMTP id 3438sxf0np-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 14 Oct 2020 14:11:05 -0400 Received: from pps.filterd (m0089484.ppops.net [127.0.0.1]) by mx0b-00154901.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 09EIAdb4040940; Wed, 14 Oct 2020 14:11:04 -0400 Received: from nam11-bn8-obe.outbound.protection.outlook.com (mail-bn8nam11lp2174.outbound.protection.outlook.com [104.47.58.174]) by mx0b-00154901.pphosted.com with ESMTP id 3465e8ry18-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 14 Oct 2020 14:11:04 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=FDK4YkhOmYbl2IuokHnHU3getJrRmohr9S1kEcoQrvfO6fPO+I+d93wAzTX0kQ/512adENd2TE1FG1S2Ar8aFymPcokIL/0CmMXBkwaPUmdZZkOPOYi3sFjDy6NKRqy2YMQI817jYGkzorRIVZelgrS2XoZTg0Zs95GR5oFJL1eAjDjmrqP4g/rOEgQOylv+T9Q8J/yXICznl/ozUyKTq39TXHLC4gYMXbrOhtpeqilVibRHAJPa0bUHG5q+5KQAaYKWQG2AWXYEDXdBlNd4ozsyIboiUOzGNOdF82snOvDIpq/vx/NL16bWvK66tVgdxk5npEX4hcRcGvHFGlKSjw== 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-SenderADCheck; bh=Htk0EO368NZziO/oPPGxiyyq0FlnD/L+I2kkNidW3W4=; b=gKlAME9wwJRXnDe2J6+dGZhOJGdMmzW8N2W/XHbwL4UquQ8B7UfWSdI9z0j74SmiolfTLiofJKsaJxjUHUTDmXaRx33m+5an+QhexdYN8rOZFaQPx7tEq8f4XFBx1+8NP9Ckqf6t2hpvdkono9OHI9a75ufPlhfPVm/GCd1g/14dCzfn/dB3c/CO2sNRm1sDmNH+DnZNKqD9TbKQnFnRhqNrS9DH3WPYX/bN5xAlf/2hFoOX9brTDQIFEkkYTMG6uhIBs/DADz4ML0LvM/BmFW0WRftoiw+ys1779etmlz+iMzuPKCJkm7uiqPV4GnvRwVpjO1Vk+Ov3C9YUtP4wRA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=dell.com; dmarc=pass action=none header.from=dell.com; dkim=pass header.d=dell.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Dell.onmicrosoft.com; s=selector1-Dell-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Htk0EO368NZziO/oPPGxiyyq0FlnD/L+I2kkNidW3W4=; b=BXq1aNpb6rcAetJShWz3cITrUoecFUl35GyaDrWnDzUo4unjWqW+QYIRArNZjNQ1p1VJ6KcLkVv7MPvT46J39rsM7HwFYmk2v54RvWR/OhUaFhWhhJvyzY95IMqhajOg4jwFNlBSDp8LA6wtY9sNXWY5EYvpHqRDU5+371EatEA= Received: from DM6PR19MB2636.namprd19.prod.outlook.com (2603:10b6:5:15f::15) by DM5PR19MB1097.namprd19.prod.outlook.com (2603:10b6:3:27::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3455.26; Wed, 14 Oct 2020 18:11:03 +0000 Received: from DM6PR19MB2636.namprd19.prod.outlook.com ([fe80::a4b8:d5c9:29da:39b2]) by DM6PR19MB2636.namprd19.prod.outlook.com ([fe80::a4b8:d5c9:29da:39b2%4]) with mapi id 15.20.3455.031; Wed, 14 Oct 2020 18:11:03 +0000 From: "Limonciello, Mario" To: Elia Devito , Hans de Goede , "Rafael J. Wysocki" CC: "Rafael J. Wysocki" , Bastien Nocera , Darren Hart , Andy Shevchenko , Mark Gross , Mark Pearson , Benjamin Berg , "linux-pm@vger.kernel.org" , "linux-acpi@vger.kernel.org" , "platform-driver-x86@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Mark Pearson , Srinivas Pandruvada Subject: RE: [RFC] Documentation: Add documentation for new performance_profile sysfs class Thread-Topic: [RFC] Documentation: Add documentation for new performance_profile sysfs class Thread-Index: AQHWmYfgDjG0YI7kc0C9HQeldGcjC6mI+DtAgAMVLYCAAEOvcIAAC2yAgAAeRRCAB7+MgIABVsSAgAGfNoCAAAXmAIAAGSmAgAAg74CAAAHycA== Date: Wed, 14 Oct 2020 18:11:03 +0000 Message-ID: References: <20201003131938.9426-1-hdegoede@redhat.com> <1834022.taCxCBeP46@pce> In-Reply-To: <1834022.taCxCBeP46@pce> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: msip_labels: MSIP_Label_17cb76b2-10b8-4fe1-93d4-2202842406cd_Enabled=True; MSIP_Label_17cb76b2-10b8-4fe1-93d4-2202842406cd_SiteId=945c199a-83a2-4e80-9f8c-5a91be5752dd; MSIP_Label_17cb76b2-10b8-4fe1-93d4-2202842406cd_Owner=Mario_Limonciello@Dell.com; MSIP_Label_17cb76b2-10b8-4fe1-93d4-2202842406cd_SetDate=2020-10-14T17:54:13.0621922Z; MSIP_Label_17cb76b2-10b8-4fe1-93d4-2202842406cd_Name=External Public; MSIP_Label_17cb76b2-10b8-4fe1-93d4-2202842406cd_Application=Microsoft Azure Information Protection; MSIP_Label_17cb76b2-10b8-4fe1-93d4-2202842406cd_ActionId=8b50ec2b-d3fd-4515-b844-530e324c8a4b; MSIP_Label_17cb76b2-10b8-4fe1-93d4-2202842406cd_Extended_MSFT_Method=Manual authentication-results: gmail.com; dkim=none (message not signed) header.d=none;gmail.com; dmarc=none action=none header.from=Dell.com; x-originating-ip: [76.251.167.31] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: ecd3bf3f-470b-4cc3-6927-08d8706c8330 x-ms-traffictypediagnostic: DM5PR19MB1097: x-microsoft-antispam-prvs: x-exotenant: 2khUwGVqB6N9v58KS13ncyUmMJd8q4 x-ms-oob-tlc-oobclassifiers: OLM:7219; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: iOV+Qj5D4glV4moGNcfUwZk8xxU/r6MbOMDuEi2rbuYkG5NfBb0/DeWJeZCGxhupsAm/UyVugsW3+SkFSCvv8Pzh+YSXLkcRSkwEEXy/2gPcSxyKpegAIST0vxE0vLxbXBrxDa2eqDf9rxU3zY1LT4lG32nNL8oEx/rmpDZK4Ce2M7sfoxRsOe1UBvnz+rpaVG33Y4a13xunQ5jLbf5LQQRRq6+urF01G/0+NiNSaihlc2/0H1m1ZWaz2jj69sRGnDfL7z+BEJQ/vkkRndn/BeZF/jIR0pbT8vi4i6LAaFKI644cOiXtS056/BxS3fhr1ihpDqraZxgRznlgQjEfL7X5aXVWqRATu5hzuam2Di6qSpHn1c49TccvNUzVqWMIadf4NzI/DzLCq0W95vOAZA== x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DM6PR19MB2636.namprd19.prod.outlook.com;PTR:;CAT:NONE;SFS:(4636009)(346002)(376002)(396003)(136003)(366004)(39860400002)(7696005)(66556008)(66476007)(6506007)(83380400001)(8936002)(26005)(4326008)(2906002)(83080400001)(8676002)(7416002)(186003)(64756008)(478600001)(9686003)(54906003)(966005)(33656002)(316002)(86362001)(66946007)(66446008)(5660300002)(76116006)(786003)(52536014)(110136005)(71200400001)(55016002);DIR:OUT;SFP:1101; x-ms-exchange-antispam-messagedata: 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 x-ms-exchange-transport-forked: True Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Dell.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: DM6PR19MB2636.namprd19.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: ecd3bf3f-470b-4cc3-6927-08d8706c8330 X-MS-Exchange-CrossTenant-originalarrivaltime: 14 Oct 2020 18:11:03.1412 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 945c199a-83a2-4e80-9f8c-5a91be5752dd X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: wTr64FxElI+kBXNCf8hvuN3k3XvSeEoNRlMV6sHQOkX17J0W9b9+4WWVZMqbQe7D/8DQd/gDd9sgQKraLJZ5rqCUusRm5gzkK9PqjPGoDls= X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR19MB1097 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-10-14_11:2020-10-14,2020-10-14 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 phishscore=0 impostorscore=0 priorityscore=1501 clxscore=1011 mlxscore=0 lowpriorityscore=0 suspectscore=0 mlxlogscore=999 bulkscore=0 spamscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2010140129 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 suspectscore=0 spamscore=0 adultscore=0 bulkscore=0 mlxscore=0 mlxlogscore=999 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2010140130 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org > As far as I know, the profiles affect the thermal behavior like "how lon= g to > wait before starting the fan and at what temperature" or "how fast to run= the > fan with the current cpu load and temperature". >=20 > The only way that firmware uses to "control" performance should be the od= vp0 > DPTF variable. >=20 > On Windows HP expose both "Cool" and "Quiet" profile respectively as "Id= eal > for when the computer feels warm to the touch" and "Ideal for quiet > environments". >=20 > more detail: https://support.hp.com/in-en/document/c06063108 >=20 > To be precise "Quiet" profile should be available only on platform withou= t > dedicate GPU (I'm investigating if there is other case), instead the othe= r 3 > profiles ("HP Recommended", "Performance" and "Cool") are available on al= l > platform that support thermal profile. >=20 > reading here seems that Dell offer identical profiles: > https://www.dell.com/support/manuals/it/it/itbsdt1/dell-command-power-man= ager- > v2.2/userguide_dell/thermal-management?guid=3Dguid-c05d2582-fc07-4e3e-918= a- > 965836d20752&lang=3Den-us >=20 The Dell profiles here I don't think should be conflated with DTT/DPTF thou= gh. These won't affect anything in the DTT vault. Those profiles are already accessible from Linux userland, there is already= a command line tool in libsmbios that can do it. $ sudo smbios-thermal-ctl -i Libsmbios version : 2.4.3 smbios-thermal-ctl version : 2.4.3 Print all the Available Thermal Information of your system: ------------------------------------------------------------------- Supported Thermal Modes: Balanced Cool Bottom Quiet Performance Supported Active Acoustic Controller (AAC) modes: Supported AAC Configuration type: Global (AAC enable/disable applies to all supported USTT modes)\ $ sudo smbios-thermal-ctl -g Helper function to Get current Thermal Mode settings Print Current Status of Thermal Information: ------------------------------------------------------------------- Current Thermal Modes: Balanced Current Active Acoustic Controller (AAC) Mode: AAC mode Disabled Current Active Acoustic Controller (AAC) Mode: Global (AAC enable/disable applies to all supported USTT modes) --- *If* we choose to export them for Dell from the kernel, we should probably = also filter from kernel side and modify the existing userspace tool to use the k= ernel API when possible. I'm not convinced that Dell would want to tie into this proposed knob with = those settings because I expect that existing software like thermald will not wor= k as efficiently.