genirq: Mirror IRQ_PER_CPU and IRQ_NO_BALANCING in irq_data.state
That's the right data structure to look at for arch code.
Accessor functions are provided.
irqd_is_per_cpu(irqdata);
irqd_can_balance(irqdata);
Coders who access them directly will be tracked down and slapped with
stinking trouts.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 3f607ad..d5312e6 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -132,10 +132,14 @@
* Bit masks for irq_data.state
*
* IRQD_SETAFFINITY_PENDING - Affinity setting is pending
+ * IRQD_NO_BALANCING - Balancing disabled for this IRQ
+ * IRQD_PER_CPU - Interrupt is per cpu
*/
enum {
/* Bit 0 - 7 reserved for TYPE will use later */
- IRQD_SETAFFINITY_PENDING = (1 << 8),
+ IRQD_SETAFFINITY_PENDING = (1 << 8),
+ IRQD_NO_BALANCING = (1 << 10),
+ IRQD_PER_CPU = (1 << 11),
};
static inline bool irqd_is_setaffinity_pending(struct irq_data *d)
@@ -143,6 +147,16 @@
return d->state_use_accessors & IRQD_SETAFFINITY_PENDING;
}
+static inline bool irqd_is_per_cpu(struct irq_data *d)
+{
+ return d->state_use_accessors & IRQD_PER_CPU;
+}
+
+static inline bool irqd_can_balance(struct irq_data *d)
+{
+ return !(d->state_use_accessors & (IRQD_PER_CPU | IRQD_NO_BALANCING));
+}
+
/**
* struct irq_chip - hardware interrupt chip descriptor
*