+ Alexandre Hi Daniel,
On Mon, 8 Feb 2016 14:33:04 +0100 Daniel Lezcano <[email protected]> wrote: > On 02/04/2016 06:21 PM, Romain Izard wrote: > > Register the counter of the Periodic Interval Timer as a possible source > > for sched_clock. This provides a better precision than the jiffies-based > > default. > > > > Signed-off-by: Romain Izard <[email protected]> > > Nicolas, Boris, > > Are you ok with this patch ? Not sure yet :). On most platforms we are also declaring a clocksource based on the TCB IP, and this one provides a better precision than the PIT clocksource. What happens if the PIT is de-activated while it's still supposed to provide the sched_clock(). Is there a way to flag the clocksource as still needed so that the core does not shut it down by when the TCB clocksource comes in. Best Regards, Boris -- Boris Brezillon, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
