commit 27ada410c7a56e72fd8c5d304704fbf5cb685659
author Magnus Damm <magnus.damm@gmail.com> Wed May 19 09:58:27 2010 +0100
committer Russell King <rmk+kernel@arm.linux.org.uk> Thu May 20 23:51:07 2010 +0100
tree 4e8939623a815170b5449ea17b960ab8d156a813
parent 1944cc894fd4d2ecce9bab6940e464afbde4fef0

ARM: 6138/1: Add support for 10 hardirq bits

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@opensource.se>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/include/asm/hardirq.h

diff --git a/arch/arm/include/asm/hardirq.h b/arch/arm/include/asm/hardirq.h
index 182310b..6d7485a 100644
--- a/arch/arm/include/asm/hardirq.h
+++ b/arch/arm/include/asm/hardirq.h
@@ -12,7 +12,9 @@
 
 #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