first commit

1 files changed, 58 insertions, 0 deletions

diff --git a/include/linux/irqnr.h b/include/linux/irqnr.h
new file mode 100644
index 000000000..0a2dc46cd
--- /dev/null
+++ b/include/linux/irqnr.h
@@ -0,0 +1,58 @@
+#ifndef _LINUX_IRQNR_H
+#define _LINUX_IRQNR_H
+
+#include <uapi/linux/irqnr.h>
+
+
+#ifndef CONFIG_GENERIC_HARDIRQS
+#include <asm/irq.h>
+
+/*
+ * 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;
+extern struct irq_desc *irq_to_desc(unsigned int irq);
+unsigned int irq_get_next_irq(unsigned int offset);
+
+# define for_each_irq_desc(irq, desc)					\
+	for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs;		\
+	     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))				\
+		if (!desc)						\
+			;						\
+		else
+
+#ifdef CONFIG_SMP
+#define irq_node(irq)	(irq_get_irq_data(irq)->node)
+#else
+#define irq_node(irq)	0
+#endif
+
+# define for_each_active_irq(irq)			\
+	for (irq = irq_get_next_irq(0); irq < nr_irqs;	\
+	     irq = irq_get_next_irq(irq + 1))
+
+#endif /* CONFIG_GENERIC_HARDIRQS */
+
+#define for_each_irq_nr(irq)                   \
+       for (irq = 0; irq < nr_irqs; irq++)
+
+#endif