Re: [PATCH v2] Add power/gpu_frequency tracepoint.

[Steven Rostedt]

On Thu, 13 Aug 2020 14:37:03 -0700
Peiyong Lin <lpy@xxxxxxxxxx> wrote:

> Historically there is no common trace event for GPU frequency, in
> downstream Android each different hardware vendor implements their own
> way to expose GPU frequency, for example as a debugfs node.  This patch
> standardize it as a common trace event in upstream linux kernel to help
> the ecosystem have a common implementation across hardware vendors.
> Toolings in the Linux ecosystem will benefit from this especially in the
> downstream Android, where this information is critical to graphics
> developers.
> 
> Signed-off-by: Peiyong Lin <lpy@xxxxxxxxxx>
> ---
> 
> Changelog since v1:
>  - Use %u in TP_printk
> 

For just the tracing side of this, but the use case is up for others to do:

Reviewed-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>

-- Steve