X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=kernel%2Firq%2Fmanage.c;h=203a518b6f1437d134c115ce7d43e1e04e1d5c25;hb=e4f3b1e74b67fdcdd3034b84997fad7912f182f6;hp=7c85d69188efce43ba19429c7da8cb3f9677a9ae;hpb=48c871c1f6a7c7044dd76774fb469e65c7e2e4e8;p=powerpc.git

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 7c85d69188..203a518b6f 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -38,6 +38,46 @@ void synchronize_irq(unsigned int irq)
 }
 EXPORT_SYMBOL(synchronize_irq);
 
+/**
+ *	irq_can_set_affinity - Check if the affinity of a given irq can be set
+ *	@irq:		Interrupt to check
+ *
+ */
+int irq_can_set_affinity(unsigned int irq)
+{
+	struct irq_desc *desc = irq_desc + irq;
+
+	if (CHECK_IRQ_PER_CPU(desc->status) || !desc->chip ||
+	    !desc->chip->set_affinity)
+		return 0;
+
+	return 1;
+}
+
+/**
+ *	irq_set_affinity - Set the irq affinity of a given irq
+ *	@irq:		Interrupt to set affinity
+ *	@cpumask:	cpumask
+ *
+ */
+int irq_set_affinity(unsigned int irq, cpumask_t cpumask)
+{
+	struct irq_desc *desc = irq_desc + irq;
+
+	if (!desc->chip->set_affinity)
+		return -EINVAL;
+
+	set_balance_irq_affinity(irq, cpumask);
+
+#ifdef CONFIG_GENERIC_PENDING_IRQ
+	set_pending_irq(irq, cpumask);
+#else
+	desc->affinity = cpumask;
+	desc->chip->set_affinity(irq, cpumask);
+#endif
+	return 0;
+}
+
 #endif
 
 /**
@@ -277,13 +317,19 @@ int setup_irq(unsigned int irq, struct irqaction *new)
 	}
 
 	*p = new;
-#if defined(CONFIG_IRQ_PER_CPU)
-	if (new->flags & IRQF_PERCPU)
-		desc->status |= IRQ_PER_CPU;
-#endif
+
+	/* Exclude IRQ from balancing */
+	if (new->flags & IRQF_NOBALANCING)
+		desc->status |= IRQ_NO_BALANCING;
+
 	if (!shared) {
 		irq_chip_set_defaults(desc->chip);
 
+#if defined(CONFIG_IRQ_PER_CPU)
+		if (new->flags & IRQF_PERCPU)
+			desc->status |= IRQ_PER_CPU;
+#endif
+
 		/* Setup the type (level, edge polarity) if configured: */
 		if (new->flags & IRQF_TRIGGER_MASK) {
 			if (desc->chip && desc->chip->set_type)
@@ -461,7 +507,7 @@ int request_irq(unsigned int irq, irq_handler_t handler,
 	/*
 	 * Lockdep wants atomic interrupt handlers:
 	 */
-	irqflags |= SA_INTERRUPT;
+	irqflags |= IRQF_DISABLED;
 #endif
 	/*
 	 * Sanity-check: shared interrupts must pass in a real dev-ID,