Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-block.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 95207ca5c6f1780c2e717d893812695a1d37cd04..08c48a81841fd5af23bc24f354dbb82efd8681ef 100644 (file)
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -79,14 +79,32 @@ static inline void set_io_apic_irq_attr(struct io_apic_irq_attr *irq_attr,
                                        int ioapic, int ioapic_pin,
                                        int trigger, int polarity)
 {
-       irq_attr->ioapic     = ioapic;
-       irq_attr->ioapic_pin = ioapic_pin;
-       irq_attr->trigger    = trigger;
-       irq_attr->polarity   = polarity;
+       irq_attr->ioapic        = ioapic;
+       irq_attr->ioapic_pin    = ioapic_pin;
+       irq_attr->trigger       = trigger;
+       irq_attr->polarity      = polarity;
 }
 
-extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin,
-                                       struct io_apic_irq_attr *irq_attr);
+/*
+ * This is performance-critical, we want to do it O(1)
+ *
+ * Most irqs are mapped 1:1 with pins.
+ */
+struct irq_cfg {
+       struct irq_pin_list     *irq_2_pin;
+       cpumask_var_t           domain;
+       cpumask_var_t           old_domain;
+       u8                      vector;
+       u8                      move_in_progress : 1;
+};
+
+extern struct irq_cfg *irq_cfg(unsigned int);
+extern int assign_irq_vector(int, struct irq_cfg *, const struct cpumask *);
+extern void send_cleanup_vector(struct irq_cfg *);
+
+struct irq_desc;
+extern unsigned int set_desc_affinity(struct irq_desc *, const struct cpumask *);
+extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin, struct io_apic_irq_attr *irq_attr);
 extern void setup_ioapic_dest(void);
 
 extern void enable_IO_APIC(void);