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unified: Add tickless idle support for x86 and ARM

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Change-Id: I42d20355321f431900727768a0836ee18e96b667
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
This commit is contained in:
Peter Mitsis 2016-09-15 12:37:58 -04:00 • committed by Benjamin Walsh
commit 96cb05ca50
8 changed files with 191 additions and 83 deletions
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18
drivers/timer/cortex_m_systick.c
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@ -274,23 +274,7 @@ void _TIMER_INT_HANDLER(void *unused)
idle_original_ticks + 1; /* actual # of idle ticks */
_sys_clock_tick_announce();
} else {
/*
* Increment the tick because _timer_idle_exit does not
* account for the tick due to the timer interrupt itself.
* Also, if not in tickless mode, _sys_idle_elapsed_ticks will be 0.
*/
_sys_idle_elapsed_ticks++;
/*
* If we transition from 0 elapsed ticks to 1 we need to
* announce the
* tick event to the microkernel. Other cases will be covered by
* _timer_idle_exit.
*/
if (_sys_idle_elapsed_ticks == 1) {
_sys_clock_tick_announce();
}
_sys_clock_final_tick_announce();
}
/* accumulate total counter value */