[IA64] Optional method to purge the TLB on SN systems

This patch adds an optional method for purging the TLB on SN IA64 systems.
The change should not affect any non-SN system.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/asm-ia64/hw_irq.h b/include/asm-ia64/hw_irq.h
index 27f9df6b9145..c054d7a9aaa7 100644
--- a/include/asm-ia64/hw_irq.h
+++ b/include/asm-ia64/hw_irq.h
@@ -66,6 +66,7 @@ extern int ia64_last_device_vector;
 #define IA64_PERFMON_VECTOR             0xee    /* performanc monitor interrupt vector */
 #define IA64_TIMER_VECTOR               0xef    /* use highest-prio group 15 interrupt for timer */
 #define IA64_MCA_WAKEUP_VECTOR          0xf0    /* MCA wakeup (must be >MCA_RENDEZ_VECTOR) */
+#define IA64_IPI_LOCAL_TLB_FLUSH        0xfc    /* SMP flush local TLB */
 #define IA64_IPI_RESCHEDULE             0xfd    /* SMP reschedule */
 #define IA64_IPI_VECTOR                 0xfe    /* inter-processor interrupt vector */