arch/tile: Implement ->set_state_oneshot_stopped()

set_state_oneshot_stopped() is called by the clkevt core, when the
next event is required at an expiry time of 'KTIME_MAX'. This normally
happens with NO_HZ_{IDLE|FULL} in both LOWRES/HIGHRES modes.

This patch makes the clockevent device to stop on such an event, to
avoid spurious interrupts, as explained by: commit 8fff52fd50
("clockevents: Introduce CLOCK_EVT_STATE_ONESHOT_STOPPED state").

Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com>
tirimbino
Chris Metcalf 7 years ago
parent ea82daf435
commit 777a45b458
  1. 1
      arch/tile/kernel/time.c

@ -162,6 +162,7 @@ static DEFINE_PER_CPU(struct clock_event_device, tile_timer) = {
.set_next_event = tile_timer_set_next_event, .set_next_event = tile_timer_set_next_event,
.set_state_shutdown = tile_timer_shutdown, .set_state_shutdown = tile_timer_shutdown,
.set_state_oneshot = tile_timer_shutdown, .set_state_oneshot = tile_timer_shutdown,
.set_state_oneshot_stopped = tile_timer_shutdown,
.tick_resume = tile_timer_shutdown, .tick_resume = tile_timer_shutdown,
}; };

Loading…
Cancel
Save