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| author | Chris Metcalf <cmetcalf@mellanox.com> | 2017-11-03 18:20:54 +0100 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@mellanox.com> | 2017-11-03 18:20:54 +0100 |
| commit | 777a45b458660b18d7d7c3e0d874d08650c99cd2 (patch) | |
| tree | 4592da9c88e7ec058601b66e7be57389786e6fb1 /arch | |
| parent | tile: pass machine size to sparse (diff) | |
| download | linux-777a45b458660b18d7d7c3e0d874d08650c99cd2.tar.xz linux-777a45b458660b18d7d7c3e0d874d08650c99cd2.zip | |
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 8fff52fd5093
("clockevents: Introduce CLOCK_EVT_STATE_ONESHOT_STOPPED state").
Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/tile/kernel/time.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/tile/kernel/time.c b/arch/tile/kernel/time.c index 6643ffbc0615..f95d65f3162b 100644 --- a/arch/tile/kernel/time.c +++ b/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_state_shutdown = tile_timer_shutdown, .set_state_oneshot = tile_timer_shutdown, + .set_state_oneshot_stopped = tile_timer_shutdown, .tick_resume = tile_timer_shutdown, }; |