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| author | Stuart Yoder <stuart.yoder@freescale.com> | 2011-05-19 08:54:26 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2011-06-22 21:44:59 -0500 |
| commit | 6ec36b5848a8336d3a0010727b9365c3254d2d2e (patch) | |
| tree | 7876f705354d8b6e73a6079b5bd6561f0b8e2cbd /arch/powerpc/sysdev/mpic.c | |
| parent | 47fe819e7555b31d24f8a11d9b2568d8f5de8b01 (diff) | |
| download | blackbird-op-linux-6ec36b5848a8336d3a0010727b9365c3254d2d2e.tar.gz blackbird-op-linux-6ec36b5848a8336d3a0010727b9365c3254d2d2e.zip | |
powerpc: make irq_choose_cpu() available to all PIC drivers
Move irq_choose_cpu() into arch/powerpc/kernel/irq.c so that it can be used
by other PIC drivers. The function is not MPIC-specific.
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/sysdev/mpic.c')
| -rw-r--r-- | arch/powerpc/sysdev/mpic.c | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index 3f995dcf95c9..d3bc7e595d0b 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -597,42 +597,6 @@ 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 struct cpumask *mask) -{ - int cpuid; - - if (cpumask_equal(mask, cpu_all_mask)) { - static int irq_rover = 0; - static DEFINE_RAW_SPINLOCK(irq_rover_lock); - unsigned long flags; - - /* Round-robin distribution... */ - do_round_robin: - raw_spin_lock_irqsave(&irq_rover_lock, flags); - - irq_rover = cpumask_next(irq_rover, cpu_online_mask); - if (irq_rover >= nr_cpu_ids) - irq_rover = cpumask_first(cpu_online_mask); - - cpuid = irq_rover; - - raw_spin_unlock_irqrestore(&irq_rover_lock, flags); - } else { - cpuid = cpumask_first_and(mask, cpu_online_mask); - if (cpuid >= nr_cpu_ids) - goto do_round_robin; - } - - return get_hard_smp_processor_id(cpuid); -} -#else -static int irq_choose_cpu(const struct cpumask *mask) -{ - return hard_smp_processor_id(); -} -#endif - /* Find an mpic associated with a given linux interrupt */ static struct mpic *mpic_find(unsigned int irq) { |
