1 files changed, 55 insertions, 0 deletions

diff --git a/include/asm-x86_64/irq.h b/include/asm-x86_64/irq.h
new file mode 100644
index 000000000000..3af50b3c3b05
--- /dev/null
+++ b/include/asm-x86_64/irq.h
@@ -0,0 +1,55 @@
+#ifndef _ASM_IRQ_H
+#define _ASM_IRQ_H
+
+/*
+ *      linux/include/asm/irq.h
+ *
+ *      (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
+ *
+ *      IRQ/IPI changes taken from work by Thomas Radke
+ *      <tomsoft@informatik.tu-chemnitz.de>
+ */
+
+#define TIMER_IRQ 0
+
+/*
+ * 16 8259A IRQ's, 208 potential APIC interrupt sources.
+ * Right now the APIC is mostly only used for SMP.
+ * 256 vectors is an architectural limit. (we can have
+ * more than 256 devices theoretically, but they will
+ * have to use shared interrupts)
+ * Since vectors 0x00-0x1f are used/reserved for the CPU,
+ * the usable vector space is 0x20-0xff (224 vectors)
+ */
+
+/*
+ * The maximum number of vectors supported by x86_64 processors
+ * is limited to 256. For processors other than x86_64, NR_VECTORS
+ * should be changed accordingly.
+ */
+#define NR_VECTORS 256
+
+#define FIRST_SYSTEM_VECTOR     0xef   /* duplicated in hw_irq.h */
+
+#ifdef CONFIG_PCI_MSI
+#define NR_IRQS FIRST_SYSTEM_VECTOR
+#define NR_IRQ_VECTORS NR_IRQS
+#else
+#define NR_IRQS 224
+#define NR_IRQ_VECTORS 1024
+#endif
+
+static __inline__ int irq_canonicalize(int irq)
+{
+        return ((irq == 2) ? 9 : irq);
+}
+
+#ifdef CONFIG_X86_LOCAL_APIC
+#define ARCH_HAS_NMI_WATCHDOG           /* See include/linux/nmi.h */
+#endif
+
+struct irqaction;
+struct pt_regs;
+int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
+
+#endif /* _ASM_IRQ_H */