Re: [PATCH v4] cpuidle: psci: Add trace for PSCI domain idle

[Dhruva Gole]

Hi Keita,

On Feb 02, 2025 at 18:46:08 +0800, Keita Morisaki wrote:
> The trace event cpu_idle provides insufficient information for debugging
> PSCI requests due to lacking access to determined PSCI domain idle
> states. The cpu_idle usually only shows -1, 0, or 1 regardless how many
> idle states the power domain has.
> 
> Add new trace events namely psci_domain_idle_enter and
> psci_domain_idle_exit to trace enter and exit events with a determined
> idle state.

Thanks for this, will really ease those psci idle debugs for everyone!

> 
> These new trace events will help developers debug CPUidle issues on ARM
> systems using PSCI by providing more detailed information about the
> requested idle states.
> 
> Signed-off-by: Keita Morisaki <keyz@xxxxxxxxxx>
> Reviewed-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
> Tested-by: Kevin Hilman <khilman@xxxxxxxxxxxx>

Reviewed-by: Dhruva Gole <d-gole@xxxxxx>


-- 
Best regards,
Dhruva Gole
Texas Instruments Incorporated