1 files changed, 37 insertions, 0 deletions

diff --git a/arch/ia64/kernel/irq_lsapic.c b/arch/ia64/kernel/irq_lsapic.c
new file mode 100644
index 000000000000..ea14e6a04409
--- /dev/null
+++ b/arch/ia64/kernel/irq_lsapic.c
@@ -0,0 +1,37 @@
+/*
+ * LSAPIC Interrupt Controller
+ *
+ * This takes care of interrupts that are generated by the CPU's
+ * internal Streamlined Advanced Programmable Interrupt Controller
+ * (LSAPIC), such as the ITC and IPI interrupts.
+    *
+ * Copyright (C) 1999 VA Linux Systems
+ * Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
+ * Copyright (C) 2000 Hewlett-Packard Co
+ * Copyright (C) 2000 David Mosberger-Tang <davidm@hpl.hp.com>
+ */
+
+#include <linux/sched.h>
+#include <linux/irq.h>
+
+static unsigned int
+lsapic_noop_startup (unsigned int irq)
+{
+        return 0;
+}
+
+static void
+lsapic_noop (unsigned int irq)
+{
+        /* nuthing to do... */
+}
+
+struct hw_interrupt_type irq_type_ia64_lsapic = {
+        .typename =     "LSAPIC",
+        .startup =      lsapic_noop_startup,
+        .shutdown =     lsapic_noop,
+        .enable =       lsapic_noop,
+        .disable =      lsapic_noop,
+        .ack =          lsapic_noop,
+        .end =          lsapic_noop
+};