Commit 777a45b4 authored Nov 03, 2017 by Chris Metcalf

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 8fff52fd
("clockevents: Introduce CLOCK_EVT_STATE_ONESHOT_STOPPED state").

Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com>

parent ea82daf4

arch/tile/kernel/time.c

+1 −0

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