Some interrupt controllers support a split EOI behaviour, where
an active interrupt can be forwarded to a VM, and directly EOIed
from the guest.
Allow the irq_data to carry a flag describing this setup.
Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
---
include/linux/irq.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 0d998d8..b4b3120 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -186,6 +186,7 @@ enum {
IRQD_IRQ_DISABLED = (1 << 16),
IRQD_IRQ_MASKED = (1 << 17),
IRQD_IRQ_INPROGRESS = (1 << 18),
+ IRQD_IRQ_FORWARDED = (1 << 19),
};
static inline bool irqd_is_setaffinity_pending(struct irq_data *d)
@@ -272,6 +273,21 @@ static inline void irqd_clr_chained_irq_inprogress(struct irq_data *d)
d->state_use_accessors &= ~IRQD_IRQ_INPROGRESS;
}
+static inline void irqd_set_irq_forwarded(struct irq_data *d)
+{
+ d->state_use_accessors |= IRQD_IRQ_FORWARDED;
+}
+
+static inline void irqd_clr_irq_forwarded(struct irq_data *d)
+{
+ d->state_use_accessors &= ~IRQD_IRQ_FORWARDED;
+}
+
+static inline bool irqd_irq_forwarded(struct irq_data *d)
+{
+ return d->state_use_accessors & IRQD_IRQ_FORWARDED;
+}
+
static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
{
return d->hwirq;
--
1.8.3.4
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