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Diffstat (limited to 'arch/powerpc/kernel/time.c')
| -rw-r--r-- | arch/powerpc/kernel/time.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 85cf317c906..5cd3db5cae4 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -629,6 +629,45 @@ void wakeup_decrementer(void) set_dec(ticks); } +#ifdef CONFIG_SUSPEND +void generic_suspend_disable_irqs(void) +{ + preempt_disable(); + + /* Disable the decrementer, so that it doesn't interfere + * with suspending. + */ + + set_dec(0x7fffffff); + local_irq_disable(); + set_dec(0x7fffffff); +} + +void generic_suspend_enable_irqs(void) +{ + wakeup_decrementer(); + + local_irq_enable(); + preempt_enable(); +} + +/* Overrides the weak version in kernel/power/main.c */ +void arch_suspend_disable_irqs(void) +{ + if (ppc_md.suspend_disable_irqs) + ppc_md.suspend_disable_irqs(); + generic_suspend_disable_irqs(); +} + +/* Overrides the weak version in kernel/power/main.c */ +void arch_suspend_enable_irqs(void) +{ + generic_suspend_enable_irqs(); + if (ppc_md.suspend_enable_irqs) + ppc_md.suspend_enable_irqs(); +} +#endif + #ifdef CONFIG_SMP void __init smp_space_timers(unsigned int max_cpus) { |