3 #include <linux/interrupt.h>
7 void irq_move_masked_irq(struct irq_data *idata)
9 struct irq_desc *desc = irq_data_to_desc(idata);
10 struct irq_data *data = &desc->irq_data;
11 struct irq_chip *chip = data->chip;
13 if (likely(!irqd_is_setaffinity_pending(data)))
16 irqd_clr_move_pending(data);
19 * Paranoia: cpu-local interrupts shouldn't be calling in here anyway.
21 if (irqd_is_per_cpu(data)) {
26 if (unlikely(cpumask_empty(desc->pending_mask)))
29 if (!chip->irq_set_affinity)
32 assert_raw_spin_locked(&desc->lock);
35 * If there was a valid mask to work with, please
36 * do the disable, re-program, enable sequence.
37 * This is *not* particularly important for level triggered
38 * but in a edge trigger case, we might be setting rte
39 * when an active trigger is coming in. This could
40 * cause some ioapics to mal-function.
41 * Being paranoid i guess!
43 * For correct operation this depends on the caller
46 if (cpumask_any_and(desc->pending_mask, cpu_online_mask) < nr_cpu_ids) {
49 ret = irq_do_set_affinity(data, desc->pending_mask, false);
51 * If the there is a cleanup pending in the underlying
52 * vector management, reschedule the move for the next
53 * interrupt. Leave desc->pending_mask intact.
56 irqd_set_move_pending(data);
60 cpumask_clear(desc->pending_mask);
63 void irq_move_irq(struct irq_data *idata)
68 * Get top level irq_data when CONFIG_IRQ_DOMAIN_HIERARCHY is enabled,
69 * and it should be optimized away when CONFIG_IRQ_DOMAIN_HIERARCHY is
70 * disabled. So we avoid an "#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY" here.
72 idata = irq_desc_get_irq_data(irq_data_to_desc(idata));
74 if (likely(!irqd_is_setaffinity_pending(idata)))
77 if (unlikely(irqd_irq_disabled(idata)))
81 * Be careful vs. already masked interrupts. If this is a
82 * threaded interrupt with ONESHOT set, we can end up with an
85 masked = irqd_irq_masked(idata);
87 idata->chip->irq_mask(idata);
88 irq_move_masked_irq(idata);
90 idata->chip->irq_unmask(idata);