Re: [PATCH] maximum latency tracking infrastructure (version 3)

[Arjan van de Ven]

Andreas Mohr wrote:
> Hi,
>
> On Mon, Aug 28, 2006 at 05:48:00PM +0200, Arjan van de Ven wrote:
> > The proposed solution is to have an interface where drivers can
> > * announce the maximum latency (in microseconds) that they can deal with
> > * modify this latency
> > * give up their constraint
> > and a function where the code that decides on power saving strategy can query
> > the current global desired maximum.
>
> Nifty (aka "dumb") idea: would it make sense to enable drivers to register a
> callback "we're going to go idle now" to e.g. let a driver refill or
> service its hardware buffers the very moment before idling? 

I could have sworn there was an idle call notifier already\

ah there is on x86-64 but it is architecture specific...
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/