genirq: Add irq disabled flag to irq_data state
Some irq_chip implementation require to know the disabled state of the
interrupt in certain callbacks. Add a state flag and accessor to
irq_data.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 5d876c9..8649b0f 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -174,6 +174,8 @@
* from suspend
* IRDQ_MOVE_PCNTXT - Interrupt can be moved in process
* context
+ * IRQD_IRQ_DISABLED - Some chip function need to know the
+ * disabled state.
*/
enum {
IRQD_TRIGGER_MASK = 0xf,
@@ -184,6 +186,7 @@
IRQD_LEVEL = (1 << 13),
IRQD_WAKEUP_STATE = (1 << 14),
IRQD_MOVE_PCNTXT = (1 << 15),
+ IRQD_IRQ_DISABLED = (1 << 16),
};
static inline bool irqd_is_setaffinity_pending(struct irq_data *d)
@@ -235,6 +238,11 @@
return d->state_use_accessors & IRQD_MOVE_PCNTXT;
}
+static inline bool irqd_irq_disabled(struct irq_data *d)
+{
+ return d->state_use_accessors & IRQD_IRQ_DISABLED;
+}
+
/**
* struct irq_chip - hardware interrupt chip descriptor
*