diff options
Diffstat (limited to 'arch/powerpc/sysdev/mpic.c')
| -rw-r--r-- | arch/powerpc/sysdev/mpic.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index b54d5813946..30c44e6b041 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -567,10 +567,12 @@ static void __init mpic_scan_ht_pics(struct mpic *mpic) #endif /* CONFIG_MPIC_U3_HT_IRQS */ #ifdef CONFIG_SMP -static int irq_choose_cpu(const cpumask_t *mask) +static int irq_choose_cpu(unsigned int virt_irq) { + cpumask_t mask; int cpuid; + cpumask_copy(&mask, irq_desc[virt_irq].affinity); if (cpus_equal(mask, CPU_MASK_ALL)) { static int irq_rover; static DEFINE_SPINLOCK(irq_rover_lock); @@ -592,15 +594,20 @@ static int irq_choose_cpu(const cpumask_t *mask) spin_unlock_irqrestore(&irq_rover_lock, flags); } else { - cpuid = cpumask_first_and(mask, cpu_online_mask); - if (cpuid >= nr_cpu_ids) + cpumask_t tmp; + + cpus_and(tmp, cpu_online_map, mask); + + if (cpus_empty(tmp)) goto do_round_robin; + + cpuid = first_cpu(tmp); } return get_hard_smp_processor_id(cpuid); } #else -static int irq_choose_cpu(const cpumask_t *mask) +static int irq_choose_cpu(unsigned int virt_irq) { return hard_smp_processor_id(); } @@ -809,7 +816,7 @@ int mpic_set_affinity(unsigned int irq, const struct cpumask *cpumask) unsigned int src = mpic_irq_to_hw(irq); if (mpic->flags & MPIC_SINGLE_DEST_CPU) { - int cpuid = irq_choose_cpu(cpumask); + int cpuid = irq_choose_cpu(irq); mpic_irq_write(src, MPIC_INFO(IRQ_DESTINATION), 1 << cpuid); } else { |