[PATCH] ARM: Add support for 10 hardirq bits

[Magnus Damm]

From: Magnus Damm <damm at opensource.se>

This patch adds support for 10 hardirq bits to
the ARM architecture. Needed by the SH-Mobile
ARM processor sh7372 that has more than 512 IRQs.

Signed-off-by: Magnus Damm <damm at opensource.se>
---

 arch/arm/include/asm/hardirq.h |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- 0001/arch/arm/include/asm/hardirq.h
+++ work/arch/arm/include/asm/hardirq.h	2010-03-09 21:08:10.000000000 +0900
@@ -12,7 +12,9 @@ typedef struct {
 
 #include <linux/irq_cpustat.h>	/* Standard mappings for irq_cpustat_t above */
 
-#if NR_IRQS > 256
+#if NR_IRQS > 512
+#define HARDIRQ_BITS	10
+#elif NR_IRQS > 256
 #define HARDIRQ_BITS	9
 #else
 #define HARDIRQ_BITS	8