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-rw-r--r--include/linux/irqdomain.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index aa76da82fa36..f837db9a5339 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -189,6 +189,9 @@ enum {
/* Irq domain doesn't translate anything */
IRQ_DOMAIN_FLAG_NO_MAP = (1 << 6),
+ /* Irq domain is a MSI parent domain */
+ IRQ_DOMAIN_FLAG_MSI_PARENT = (1 << 8),
+
/*
* Flags starting from IRQ_DOMAIN_FLAG_NONCORE are reserved
* for implementation specific purposes and ignored by the
@@ -551,6 +554,11 @@ static inline bool irq_domain_is_msi_remap(struct irq_domain *domain)
extern bool irq_domain_hierarchical_is_msi_remap(struct irq_domain *domain);
+static inline bool irq_domain_is_msi_parent(struct irq_domain *domain)
+{
+ return domain->flags & IRQ_DOMAIN_FLAG_MSI_PARENT;
+}
+
#else /* CONFIG_IRQ_DOMAIN_HIERARCHY */
static inline int irq_domain_alloc_irqs(struct irq_domain *domain,
unsigned int nr_irqs, int node, void *arg)
@@ -596,6 +604,12 @@ irq_domain_hierarchical_is_msi_remap(struct irq_domain *domain)
{
return false;
}
+
+static inline bool irq_domain_is_msi_parent(struct irq_domain *domain)
+{
+ return false;
+}
+
#endif /* CONFIG_IRQ_DOMAIN_HIERARCHY */
#else /* CONFIG_IRQ_DOMAIN */