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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/ia64/kernel/irq_lsapic.c
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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
+};