diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/kernel/process.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 047d3e40e470..db4ffd09ee23 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -199,7 +199,16 @@ void cpu_idle(void) #ifdef CONFIG_PL310_ERRATA_769419 wmb(); #endif - if (hlt_counter) { + /* + * In poll mode we reenable interrupts and spin. + * + * Also if we detected in the wakeup from idle + * path that the tick broadcast device expired + * for us, we don't want to go deep idle as we + * know that the IPI is going to arrive right + * away + */ + if (hlt_counter || tick_check_broadcast_expired()) { local_irq_enable(); cpu_relax(); } else if (!need_resched()) { |