genirq: Make irq_destroy_ipi take a cpumask of IPIs to destroy

[cascardo/linux.git] / include / linux / irqdomain.h

diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 04579d9..e1b81d3 100644 (file)
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -74,6 +74,8 @@ enum irq_domain_bus_token {
        DOMAIN_BUS_PCI_MSI,
        DOMAIN_BUS_PLATFORM_MSI,
        DOMAIN_BUS_NEXUS,
+       DOMAIN_BUS_IPI,
+       DOMAIN_BUS_FSL_MC_MSI,
 };
 
 /**
@@ -172,6 +174,12 @@ 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
@@ -206,6 +214,8 @@ struct irq_domain *irq_domain_add_legacy(struct device_node *of_node,
 extern struct irq_domain *irq_find_matching_fwnode(struct fwnode_handle *fwnode,
                                                   enum irq_domain_bus_token bus_token);
 extern void irq_set_default_host(struct irq_domain *host);
+extern int irq_domain_alloc_descs(int virq, unsigned int nr_irqs,
+                                 irq_hw_number_t hwirq, int node);
 
 static inline struct fwnode_handle *of_node_to_fwnode(struct device_node *node)
 {
@@ -335,6 +345,11 @@ int irq_domain_xlate_onetwocell(struct irq_domain *d, struct device_node *ctrlr,
                        const u32 *intspec, unsigned int intsize,
                        irq_hw_number_t *out_hwirq, unsigned int *out_type);
 
+/* IPI functions */
+unsigned int irq_reserve_ipi(struct irq_domain *domain,
+                            const struct cpumask *dest);
+void irq_destroy_ipi(unsigned int irq, const struct cpumask *dest);
+
 /* V2 interfaces to support hierarchy IRQ domains. */
 extern struct irq_data *irq_domain_get_irq_data(struct irq_domain *domain,
                                                unsigned int virq);
@@ -400,6 +415,22 @@ 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) { }
@@ -413,6 +444,21 @@ 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 */