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Fri, 13 Dec 2024 15:29:33 -0800 From: Johnny Liu To: CC: , , , , , , , , , , , , , , , , , , Subject: Re: [PATCH v1 1/5] dt-bindings: display: tegra: Add actmon information Date: Fri, 13 Dec 2024 15:29:33 -0800 Message-ID: <20241213232933.4661-1-johnliu@nvidia.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <34kg2aoaeem3bjqh6vli43hc63tvfx7uumkmkre3wkvek2neyu@jhj5n3om7vzd> References: <34kg2aoaeem3bjqh6vli43hc63tvfx7uumkmkre3wkvek2neyu@jhj5n3om7vzd> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain X-NV-OnPremToCloud: AnonymousSubmission X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA2PEPF00001506:EE_|CY5PR12MB6297:EE_ X-MS-Office365-Filtering-Correlation-Id: 0fdd84b9-1777-4423-b1e3-08dd1bce02bd X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|36860700013|1800799024|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?u7mMKDnBvEpOQkMmmf905xEFgmJtG3w87yiEJFbAvvN+ICjxG4AW7vMpnHL7?= =?us-ascii?Q?AUpobxsKLgXgv09qGsnFMfEx+eOa0hXCXRclaCX379fwzQi0tvDFwQNye4hH?= =?us-ascii?Q?4BNmJz+aGUd9CbBlM/GOY6fbdk9GzqhY7Uq40ioPdefi+jt6r5hLpEFclw4B?= =?us-ascii?Q?iVQhJZbs/JoitWwb+/vSquyGlQ20AuNXKzvp5rXhay9zh+xS+Zmf5KPvuON/?= =?us-ascii?Q?K1N2RuTIJ/PK4ZPUq2e2+CwsI8snTIMoywBTZTxCiBqHBZiIDKseZ4dDLKZd?= =?us-ascii?Q?pZ/pOon8i3UEVrCNw59mNln/l9yVeKdtSAtLRTZcIAfJ+76g9JaPvYMBlLaJ?= =?us-ascii?Q?TAt8DXgErUSmN1eYG1wfNfIFhiK3ZGLYomh+IKkcVRNiJvfG0I2GxEr/GuAe?= =?us-ascii?Q?0zg8visSiwKeYAvSxgCX81vsYdFWejxTJAX88XMTSe2EVMCVtxferPJxwZJN?= =?us-ascii?Q?cdhTrgUe0l4xK4DpukKfSuQiARfTum9lcA0uU6Sd+xel6iv5G2vDLbZi4CSG?= =?us-ascii?Q?A/NnTRJDQz/ete7c4/Uywsho4RJ5DuSKbMHgmOTsU64zhs8Micyo+SR37JQ1?= =?us-ascii?Q?/e0p/O26ClMWv7srL+x0hZPImJi2Lh4Qqgsxw6KEAqTyHhyLSZnYkDYKLax6?= =?us-ascii?Q?RXuEK3FZ2B0yVmAN93kkIY7t3TymolnrMe7BKEUYezP9NZk9QiTF7vEPy8bL?= =?us-ascii?Q?rtVFuxPRPS41Ih74GeQrpSGT55w3I8yXJ+ySdBuQ1B5eAaTzEvXvII9gqdGn?= =?us-ascii?Q?egEt2jMO8yex1LX8rHQ7rSd9R1CIs/WQsYRIWrjPwytBIlE9onGHY+lwmAWA?= =?us-ascii?Q?DZHe5f17ELeDh9BFTH4yhz4W+71I3aFO6DPoP3AEPxSPDUSOjsFRZQicS0bb?= =?us-ascii?Q?PhXJur2su8dsCFUi2ewYVgIiF3XYS1l6XCZPltwUlyeLrgXi0Z0ZE6VHBHJ2?= =?us-ascii?Q?fdVXIvpx6JqYwRvQEZZtUMX1VaE1Rv+85cPNBVapzP3bWKzZB8j+XBoGU02U?= =?us-ascii?Q?vZElQV/zi7IfDLpta+wzZ1QyhdTyE6mDaDxo0E15GgrCC2KjRf6vVNurZgga?= =?us-ascii?Q?VHffVpphPUi/gJe385q7Mw5/kZtxaqbandP8mS04b5p1R3boIPuQNXSU9C4M?= =?us-ascii?Q?vUGMAgEa1bPZxuaQq88Tk8DKdypFepNfb3MG8H+6byA8F2oMC+uHNxsuLGJS?= =?us-ascii?Q?6ccrQDqi0jcBlTWLpa1kQdu6F9n9AVX9AhQhrDX1tJ3wVI7iXAW4ZgC1DA36?= =?us-ascii?Q?0nAPqHAodpV1/YDWqRcQ9bXH3CjO3Wsum9t4QPjhu/MxrzorSS61T6v1Tdny?= =?us-ascii?Q?pLxWorsW4VWTzCIqgeE3GB3HqoirfyJIH5HQ5xQ0NjNc+702NAYDIRqn85lH?= =?us-ascii?Q?ZfD4c1bwIVpv0INW6HmSZQCjRHezIuj6an9nyiJqtJ1h+0+Fle+yJ2ID29C+?= =?us-ascii?Q?9gZceC3ehGax9YUaWyb4ZmZcURzvovJpxVR5xoYgt1dY3/+wlNT+AfrJBSnF?= =?us-ascii?Q?1hW3BdY4ooCqwNc=3D?= X-Forefront-Antispam-Report: CIP:216.228.118.232;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge1.nvidia.com;CAT:NONE;SFS:(13230040)(7416014)(376014)(36860700013)(1800799024)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Dec 2024 23:29:37.8271 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 0fdd84b9-1777-4423-b1e3-08dd1bce02bd X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.232];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SA2PEPF00001506.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY5PR12MB6297 > On Tue, Dec 10, 2024 at 09:45:50AM -0800, Johnny Liu wrote: > > An activity monitor (actmon) is used to measure the device runtime > > utilization to help drive software power management policies. > > > > Extend the reg space to include actmon aperture for actmon configuration > > through host1x. > > We kind of see that from the diff. Say what we do not see, e.g. ABI > impact or why this is flexible/optional for existing devices. Since actmon is not well-supported for the previous chips (e.g. T210, T186, T194, and etc) in this patch series, it's essential to make the specification of regs property optional for the previous chips. Enablement/Disablement of actmon won't affect the host1x main functionality. Its main job is to monitor the engines behind the host1x and serve for telemetry purpose. I could update the commit message to include the above reason. Please let me know if more information is required. Thanks, Johnny