The following commit has been merged into the irq/core branch of tip:
Commit-ID: e71c5d0bb1885b73c746b634895b85d135ce2c87
Gitweb: https://git.kernel.org/tip/e71c5d0bb1885b73c746b634895b85d135ce2c87
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Fri, 25 Nov 2022 00:24:17 +01:00
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Mon, 05 Dec 2022 19:20:58 +01:00
genirq/irqdomain: Provide IRQ_DOMAIN_FLAG_MSI_DEVICE
Similar to marking parent MSI domains it's required to identify per device
domains. Add flag and helpers.
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
Acked-by: Marc Zyngier <maz@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20221124230313.747627287@xxxxxxxxxxxxx
---
include/linux/irqdomain.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index f837db9..24b7668 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -192,6 +192,9 @@ enum {
/* Irq domain is a MSI parent domain */
IRQ_DOMAIN_FLAG_MSI_PARENT = (1 << 8),
+ /* Irq domain is a MSI device domain */
+ IRQ_DOMAIN_FLAG_MSI_DEVICE = (1 << 9),
+
/*
* Flags starting from IRQ_DOMAIN_FLAG_NONCORE are reserved
* for implementation specific purposes and ignored by the
@@ -559,6 +562,11 @@ static inline bool irq_domain_is_msi_parent(struct irq_domain *domain)
return domain->flags & IRQ_DOMAIN_FLAG_MSI_PARENT;
}
+static inline bool irq_domain_is_msi_device(struct irq_domain *domain)
+{
+ return domain->flags & IRQ_DOMAIN_FLAG_MSI_DEVICE;
+}
+
#else /* CONFIG_IRQ_DOMAIN_HIERARCHY */
static inline int irq_domain_alloc_irqs(struct irq_domain *domain,
unsigned int nr_irqs, int node, void *arg)
@@ -610,6 +618,11 @@ static inline bool irq_domain_is_msi_parent(struct irq_domain *domain)
return false;
}
+static inline bool irq_domain_is_msi_device(struct irq_domain *domain)
+{
+ return false;
+}
+
#endif /* CONFIG_IRQ_DOMAIN_HIERARCHY */
#else /* CONFIG_IRQ_DOMAIN */
|