MIPS: BCM63xx: Add serial driver for bcm63xx integrated UART.

[safe/jmp/linux-2.6] / include / linux / irqnr.h

diff --git a/include/linux/irqnr.h b/include/linux/irqnr.h
index c4a59c7..7bf89bc 100644 (file)
--- a/include/linux/irqnr.h
+++ b/include/linux/irqnr.h
@@ -8,13 +8,19 @@
 
 #ifndef CONFIG_GENERIC_HARDIRQS
 #include <asm/irq.h>
-# define nr_irqs               NR_IRQS
+
+/*
+ * Wrappers for non-genirq architectures:
+ */
+#define nr_irqs                        NR_IRQS
+#define irq_to_desc(irq)       (&irq_desc[irq])
 
 # define for_each_irq_desc(irq, desc)          \
        for (irq = 0; irq < nr_irqs; irq++)
 
 # define for_each_irq_desc_reverse(irq, desc)                          \
        for (irq = nr_irqs - 1; irq >= 0; irq--)
+
 #else /* CONFIG_GENERIC_HARDIRQS */
 
 extern int nr_irqs;
@@ -22,10 +28,24 @@ extern struct irq_desc *irq_to_desc(unsigned int irq);
 
 # define for_each_irq_desc(irq, desc)                                  \
        for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs;           \
-            irq++, desc = irq_to_desc(irq))
+            irq++, desc = irq_to_desc(irq))                            \
+               if (!desc)                                              \
+                       ;                                               \
+               else
+
+
 # define for_each_irq_desc_reverse(irq, desc)                          \
        for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0;      \
-            irq--, desc = irq_to_desc(irq))
+            irq--, desc = irq_to_desc(irq))                            \
+               if (!desc)                                              \
+                       ;                                               \
+               else
+
+#ifdef CONFIG_SMP
+#define irq_node(irq)  (irq_to_desc(irq)->node)
+#else
+#define irq_node(irq)  0
+#endif
 
 #endif /* CONFIG_GENERIC_HARDIRQS */