source: trunk/packages/xen-3.1/xen-3.1/xen/arch/ia64/linux/irq_lsapic.c @ 34

Last change on this file since 34 was 34, checked in by hartmans, 18 years ago

Add xen and xen-common

File size: 854 bytes
Line 
1/*
2 * LSAPIC Interrupt Controller
3 *
4 * This takes care of interrupts that are generated by the CPU's
5 * internal Streamlined Advanced Programmable Interrupt Controller
6 * (LSAPIC), such as the ITC and IPI interrupts.
7    *
8 * Copyright (C) 1999 VA Linux Systems
9 * Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
10 * Copyright (C) 2000 Hewlett-Packard Co
11 * Copyright (C) 2000 David Mosberger-Tang <davidm@hpl.hp.com>
12 */
13
14#include <linux/sched.h>
15#include <linux/irq.h>
16
17static unsigned int
18lsapic_noop_startup (unsigned int irq)
19{
20        return 0;
21}
22
23static void
24lsapic_noop (unsigned int irq)
25{
26        /* nuthing to do... */
27}
28
29struct hw_interrupt_type irq_type_ia64_lsapic = {
30        .typename =     "LSAPIC",
31        .startup =      lsapic_noop_startup,
32        .shutdown =     lsapic_noop,
33        .enable =       lsapic_noop,
34        .disable =      lsapic_noop,
35        .ack =          lsapic_noop,
36        .end =          lsapic_noop
37};
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