> 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