On Wed, Dec 09 2020 at 03:37 -0700, Ulf Hansson wrote:
On Tue, 8 Dec 2020 at 18:26, Rafael J. Wysocki <rafael@xxxxxxxxxx> wrote:
On Mon, Nov 30, 2020 at 11:51 PM Lina Iyer <ilina@xxxxxxxxxxxxxx> wrote:
>
> Hi,
>
> The v5[1] of the series brought out some interesting discussions. The
> most important being is it worth adding the additional expense to all PM
> domains even if no wakeup pattern is available. It seems like
> maintaining a domain specific flag that the governor could check is a
> generic enough option. That should disable additional overhead for
> domains that do not need this feature.
>
> Ulf suggested that we could allow wakeups only if any of the domain idle
> state specifies a residency. However, we don't want to check for next
> wakeup everytime the domain enters idle just because the domain
> specifies an idle state with residency. This is also not desired.
>
> Also, if the domain checks for next wakeup, should the parent domains of
> the domain also check for next wakeup? And when do we set that up? These
> are questions that we don't know the answers yet. So, let's enable the
> domain governor only if the domain sets up the flag or when the device
> in the domain specifies the next wakeup.
>
> The previous post of the series explaining why this is a useful feature
> is v5[1]. Please let me know what you think.
Ulf had comments on the previous versions, so waiting for him to
respond here, thanks!
Yes, I will have a look, but please allow me some more time - it's a
busy period for me.
Thank you.
-- Lina
