RE: [PATCH] perf: add OMAP support for the new power events

[Santosh Shilimkar <santosh.shilimkar@ti.com>]

> -----Original Message-----
> From: Jean Pihet [mailto:jean.pihet@newoldbits.com]
> Sent: Wednesday, January 26, 2011 3:20 PM
> To: Santosh Shilimkar
> Cc: Thomas Renninger; linux-omap@vger.kernel.org; Jean Pihet-XID
> Subject: Re: [PATCH] perf: add OMAP support for the new power events
>
[...]

> > We need to track the actual power domain transitions as well
> > at hardware level.
> Agree
>
> > Can you please look at "pwrdm_pre_transition()" and
> > "pwrdm_post_transition()"
> > This code keep track of it using the next power state
> > and prev-power state.
> The current API only has 'trace_power_domain_target' which tracks
> the
> desired target state.
> I think we need an extra tracer 'trace_power_domain_hitstate' so
> that
> the trace parser can compare the desired ('target') and actually hit
> ('hitstate') states.
>
We use next state and previous state. 'hitstate' doesn't sound
well that's really secondary.

Do you plan to add that additional trace then ?

Regards,
Santosh