2022-11-25 00:53:35

by Thomas Gleixner

Subject: [patch V3 06/22] 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 <[email protected]>
---
include/linux/irqdomain.h | 13 +++++++++++++
1 file changed, 13 insertions(+)

--- 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_par
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)
@@ -609,6 +617,11 @@ static inline bool irq_domain_is_msi_par
{
return false;
}
+
+static inline bool irq_domain_is_msi_device(struct irq_domain *domain)
+{
+ return false;
+}

#endif /* CONFIG_IRQ_DOMAIN_HIERARCHY */

2022-12-05 18:51:35

by tip-bot2 for Alexey Makhalov

Subject: [tip: irq/core] genirq/irqdomain: Provide IRQ_DOMAIN_FLAG_MSI_DEVICE

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 <[email protected]>
AuthorDate: Fri, 25 Nov 2022 00:24:17 +01:00
Committer: Thomas Gleixner <[email protected]>
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 <[email protected]>
Reviewed-by: Kevin Tian <[email protected]>
Acked-by: Marc Zyngier <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

---
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 */