On Fri, Sep 13, 2013 at 04:45:12PM +0200, Thomas Gleixner wrote:
> On Thu, 12 Sep 2013, Sören Brinkmann wrote:
> > On Thu, Sep 12, 2013 at 10:30:15PM +0200, Thomas Gleixner wrote:
> > I gave it a shot. Is this what you imagine:
> > diff --git a/drivers/clocksource/arm_global_timer.c b/drivers/clocksource/arm_global_timer.c
> > index b66c1f3..c639b1a 100644
> > --- a/drivers/clocksource/arm_global_timer.c
> > +++ b/drivers/clocksource/arm_global_timer.c
> > @@ -169,7 +169,8 @@ static int gt_clockevents_init(struct clock_event_device *clk)
> > int cpu = smp_processor_id();
> >
> > clk->name = "arm_global_timer";
> > - clk->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
> > + clk->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT |
> > + CLOCK_EVT_FEAT_PERCPU;
> > clk->set_mode = gt_clockevent_set_mode;
> > clk->set_next_event = gt_clockevent_set_next_event;
> > clk->cpumask = cpumask_of(cpu);
> > diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h
> > index 0857922..493aa02 100644
> > --- a/include/linux/clockchips.h
> > +++ b/include/linux/clockchips.h
> > @@ -60,6 +60,7 @@ enum clock_event_mode {
> > * Core shall set the interrupt affinity dynamically in broadcast mode
> > */
> > #define CLOCK_EVT_FEAT_DYNIRQ 0x000020
> > +#define CLOCK_EVT_FEAT_PERCPU 0x000040
> >
> > /**
> > * struct clock_event_device - clock event device descriptor
> > diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
> > index d3539e5..de4c5d8 100644
> > --- a/kernel/time/tick-broadcast.c
> > +++ b/kernel/time/tick-broadcast.c
> > @@ -70,16 +70,14 @@ static bool tick_check_broadcast_device(struct clock_event_device *curdev,
> > struct clock_event_device *newdev)
> > {
> > if ((newdev->features & CLOCK_EVT_FEAT_DUMMY) ||
> > - (newdev->features & CLOCK_EVT_FEAT_C3STOP))
> > + (newdev->features & CLOCK_EVT_FEAT_C3STOP) ||
> > + (newdev->features & CLOCK_EVT_FEAT_PERCPU))
> > return false;
> >
> > if (tick_broadcast_device.mode == TICKDEV_MODE_ONESHOT &&
> > !(newdev->features & CLOCK_EVT_FEAT_ONESHOT))
> > return false;
> >
> > - if (cpumask_equal(newdev->cpumask, cpumask_of(smp_processor_id())))
> > - return false;
> > -
> > return !curdev || newdev->rating > curdev->rating;
> > }
> >
> > If this is the way to go, I can prepare this in a v2.
>
> Looks good to me. The last junk of the patch won't apply on mainline,
> but thats the least of my worries. :)
Of course. I'll split this into smaller chunks and send out a v2.
Thanks,
Sören
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
