[PATCH v4 01/19] genirq: Add new IRQ_DOMAIN_FLAGS_IPI

Qais Yousef
2015-12-08T13:21:00Z

This flag will be used to identify an IPI domain.

We have two types:

- PER_CPU: indicating a virq for each IPI
- SINGLE: indicating a single virq for all IPIs

Signed-off-by: Qais Yousef <qais.yousef@imgtec.com>
---
include/linux/irqdomain.h | 37 +++++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)

diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index d5e5c5bef28c..c1a59f37674d 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -171,6 +171,12 @@ enum {
/* Core calls alloc/free recursive through the domain hierarchy. */
IRQ_DOMAIN_FLAG_AUTO_RECURSIVE = (1 << 1),

+ /* Irq domain is an IPI domain with virq per cpu */
+ IRQ_DOMAIN_FLAG_IPI_PER_CPU = (1 << 2),
+
+ /* Irq domain is an IPI domain with single virq */
+ IRQ_DOMAIN_FLAG_IPI_SINGLE = (1 << 3),
+
/*
* Flags starting from IRQ_DOMAIN_FLAG_NONCORE are reserved
* for implementation specific purposes and ignored by the
@@ -391,6 +397,22 @@ static inline bool irq_domain_is_hierarchy(struct irq_domain *domain)
{
return domain->flags & IRQ_DOMAIN_FLAG_HIERARCHY;
}
+
+static inline bool irq_domain_is_ipi(struct irq_domain *domain)
+{
+ return domain->flags &
+ (IRQ_DOMAIN_FLAG_IPI_PER_CPU | IRQ_DOMAIN_FLAG_IPI_SINGLE);
+}
+
+static inline bool irq_domain_is_ipi_per_cpu(struct irq_domain *domain)
+{
+ return domain->flags & IRQ_DOMAIN_FLAG_IPI_PER_CPU;
+}
+
+static inline bool irq_domain_is_ipi_single(struct irq_domain *domain)
+{
+ return domain->flags & IRQ_DOMAIN_FLAG_IPI_SINGLE;
+}
#else /* CONFIG_IRQ_DOMAIN_HIERARCHY */
static inline void irq_domain_activate_irq(struct irq_data *data) { }
static inline void irq_domain_deactivate_irq(struct irq_data *data) { }
@@ -404,6 +426,21 @@ static inline bool irq_domain_is_hierarchy(struct irq_domain *domain)
{
return false;
}
+
+static inline bool irq_domain_is_ipi(struct irq_domain *domain)
+{
+ return false;
+}
+
+static inline bool irq_domain_is_ipi_per_cpu(struct irq_domain *domain)
+{
+ return false;
+}
+
+static inline bool irq_domain_is_ipi_single(struct irq_domain *domain)
+{
+ return false;
+}
#endif /* CONFIG_IRQ_DOMAIN_HIERARCHY */

#else /* CONFIG_IRQ_DOMAIN */
--
2.1.0