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Fri, 23 Apr 2021 18:33:45 +0000 Received: from [10.2.164.27] (172.20.145.6) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 23 Apr 2021 18:33:44 +0000 Subject: Re: [RFC PATCH 2/4] cpuidle: menu: add idle_time to cpuidle_state To: "Rafael J. Wysocki" CC: Sudeep Holla , Souvik Chakravarty , Thierry Reding , "Mark Rutland" , Lorenzo Pieralisi , Daniel Lezcano , "Rob Herring" , Jon Hunter , , , Linux ARM , linux-tegra , Linux Kernel Mailing List , Linux PM , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" References: <1619123448-10138-1-git-send-email-skomatineni@nvidia.com> <1619123448-10138-3-git-send-email-skomatineni@nvidia.com> From: Sowjanya Komatineni Message-ID: Date: Fri, 23 Apr 2021 11:33:41 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-Originating-IP: [172.20.145.6] X-ClientProxiedBy: HQMAIL105.nvidia.com (172.20.187.12) To HQMAIL107.nvidia.com (172.20.187.13) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: e4677f3a-8b92-41ea-2637-08d9068653f7 X-MS-TrafficTypeDiagnostic: BN6PR1201MB0003: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:6790; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: dMgeX3A+/tHv4cBSFWjAlxgXOfcQIvJjVuzNgWMxG15MdnReQ1ISrsG7EDlfbXmcxR/FsNomYnzjOQNaGPiNZXpIM6RgEjKBmY32SFU1cYwbmEW9EjhKVj6wWLnu0YOCvM00/Ei2ohFhUNCj8Ji9pb0gHcj3C2pyw7Bu81rgRm5Q850j7Cy2Bnq6um0v+FFpZebGhcd/i/xaoZZXY/NLJWlGc3+UaCCIvCOr163uxdC5YVmP8RuhdSAfrr+YsNVZwsb3uR+TPw8AsOPyU1odEDgCYhIYjGxvFz6Z8+x8w3ySV/8rN5a41PiaNVGEl+2VyG7WZ0JGgUgbI776htz+BVnD7SlOnPcA73R5c0fyCbsQijMhNCxkajPNoccYsVkaCpZPjEqu8xFYSgLJqgDTse77+OLRgbwFK+GYb951z6Z50B1rCuqmn2ETo9ZIu3lepNjfDi2R91j6ohH5AGY5tfNfS+tFrqiN0DTkVxQIuk5QoaUk1y7a/NM2wDEZziad4TFLArv4xv1EselITlyOZgTxULcpYBmUdDZDaY11vlE/mrIn1WAHulSumnfZnRwfWou+CaeSdNPFAMh+MuASbENMWq4U5DyEG48AfR8XfeTiSZ381f+c67lXq8PxMXQRmZe+ulTkIAuF4Gck0A18nulOjJ9OQbiJpb7yhCbspDreX5pfbD9/sOeuQDh1ea4/ X-Forefront-Antispam-Report: CIP:216.228.112.34; CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:schybrid03.nvidia.com; CAT:NONE; SFS:(4636009)(346002)(376002)(396003)(39860400002)(136003)(36840700001)(46966006)(31686004)(82310400003)(31696002)(36860700001)(82740400003)(47076005)(36756003)(86362001)(53546011)(356005)(4326008)(36906005)(2616005)(2906002)(316002)(8676002)(26005)(54906003)(426003)(8936002)(16576012)(16526019)(186003)(4744005)(70206006)(336012)(6666004)(70586007)(5660300002)(478600001)(7416002)(7636003)(6916009)(43740500002); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Apr 2021 18:33:45.2626 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e4677f3a-8b92-41ea-2637-08d9068653f7 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.112.34]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT060.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR1201MB0003 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210423_113348_585105_862C1B46 X-CRM114-Status: UNSURE ( 9.12 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 4/23/21 5:22 AM, Rafael J. Wysocki wrote: > On Thu, Apr 22, 2021 at 10:31 PM Sowjanya Komatineni > wrote: >> Some platforms use separate CPU firmware running in background to >> handle state transitions which may need runtime idle time of the >> corresponding target state from the kernel. > How exactly does this work? > Explained this as part of other feedback in Patch-0 Thanks Sowjanya _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel