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Diffstat (limited to 'arch/ia64/kernel/irq_lsapic.c')
-rw-r--r--arch/ia64/kernel/irq_lsapic.c37
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
+};