extern void disable_percpu_irq(unsigned int irq);
extern void enable_irq(unsigned int irq);
extern void enable_percpu_irq(unsigned int irq, unsigned int type);
+extern void irq_wake_thread(unsigned int irq, void *dev_id);
/* The following three functions are for the core kernel use only. */
extern void suspend_device_irqs(void);
static inline int check_wakeup_irqs(void) { return 0; }
#endif
-#if defined(CONFIG_SMP)
-
-extern cpumask_var_t irq_default_affinity;
-
-extern int irq_set_affinity(unsigned int irq, const struct cpumask *cpumask);
-extern int irq_can_set_affinity(unsigned int irq);
-extern int irq_select_affinity(unsigned int irq);
-
-extern int irq_set_affinity_hint(unsigned int irq, const struct cpumask *m);
-
/**
* struct irq_affinity_notify - context for notification of IRQ affinity changes
* @irq: Interrupt to which notification applies
void (*release)(struct kref *ref);
};
+#if defined(CONFIG_SMP)
+
+extern cpumask_var_t irq_default_affinity;
+
+/* Internal implementation. Use the helpers below */
+extern int __irq_set_affinity(unsigned int irq, const struct cpumask *cpumask,
+ bool force);
+
+/**
+ * irq_set_affinity - Set the irq affinity of a given irq
+ * @irq: Interrupt to set affinity
+ * @cpumask: cpumask
+ *
+ * Fails if cpumask does not contain an online CPU
+ */
+static inline int
+irq_set_affinity(unsigned int irq, const struct cpumask *cpumask)
+{
+ return __irq_set_affinity(irq, cpumask, false);
+}
+
+/**
+ * irq_force_affinity - Force the irq affinity of a given irq
+ * @irq: Interrupt to set affinity
+ * @cpumask: cpumask
+ *
+ * Same as irq_set_affinity, but without checking the mask against
+ * online cpus.
+ *
+ * Solely for low level cpu hotplug code, where we need to make per
+ * cpu interrupts affine before the cpu becomes online.
+ */
+static inline int
+irq_force_affinity(unsigned int irq, const struct cpumask *cpumask)
+{
+ return __irq_set_affinity(irq, cpumask, true);
+}
+
+extern int irq_can_set_affinity(unsigned int irq);
+extern int irq_select_affinity(unsigned int irq);
+
+extern int irq_set_affinity_hint(unsigned int irq, const struct cpumask *m);
+
extern int
irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *notify);
{
return -EINVAL;
}
+
+static inline int
+irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *notify)
+{
+ return 0;
+}
#endif /* CONFIG_SMP */
/*