x86/irq: Use hierarchical irqdomain to manage CPU interrupt vectors

[uclinux-h8/linux.git] / arch / x86 / include / asm / hw_irq.h

diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index cda9695..5b951ac 100644 (file)
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -112,6 +112,17 @@ struct irq_2_irte {
 
 #ifdef CONFIG_X86_LOCAL_APIC
 struct irq_data;
+struct irq_domain;
+
+struct irq_alloc_info {
+       u32                     flags;
+       const struct cpumask    *mask;  /* CPU mask for vector allocation */
+};
+
+enum {
+       /* Allocate contiguous CPU vectors */
+       X86_IRQ_ALLOC_CONTIGUOUS_VECTORS                = 0x1,
+};
 
 struct irq_cfg {
        cpumask_var_t           domain;
@@ -135,6 +146,12 @@ struct irq_cfg {
        };
 };
 
+extern struct irq_domain *x86_vector_domain;
+
+extern void init_irq_alloc_info(struct irq_alloc_info *info,
+                               const struct cpumask *mask);
+extern void copy_irq_alloc_info(struct irq_alloc_info *dst,
+                               struct irq_alloc_info *src);
 extern struct irq_cfg *irq_cfg(unsigned int irq);
 extern struct irq_cfg *irqd_cfg(struct irq_data *irq_data);
 extern struct irq_cfg *alloc_irq_and_cfg_at(unsigned int at, int node);