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-rw-r--r--arch/x86/oprofile/nmi_timer_int.c50
1 files changed, 0 insertions, 50 deletions
diff --git a/arch/x86/oprofile/nmi_timer_int.c b/arch/x86/oprofile/nmi_timer_int.c
deleted file mode 100644
index 7f8052cd6620..000000000000
--- a/arch/x86/oprofile/nmi_timer_int.c
+++ /dev/null
@@ -1,50 +0,0 @@
1/**
2 * @file nmi_timer_int.c
3 *
4 * @remark Copyright 2003 OProfile authors
5 * @remark Read the file COPYING
6 *
7 * @author Zwane Mwaikambo <zwane@linuxpower.ca>
8 */
9
10#include <linux/init.h>
11#include <linux/smp.h>
12#include <linux/errno.h>
13#include <linux/oprofile.h>
14#include <linux/rcupdate.h>
15#include <linux/kdebug.h>
16
17#include <asm/nmi.h>
18#include <asm/apic.h>
19#include <asm/ptrace.h>
20
21static int profile_timer_exceptions_notify(unsigned int val, struct pt_regs *regs)
22{
23 oprofile_add_sample(regs, 0);
24 return NMI_HANDLED;
25}
26
27static int timer_start(void)
28{
29 if (register_nmi_handler(NMI_LOCAL, profile_timer_exceptions_notify,
30 0, "oprofile-timer"))
31 return 1;
32 return 0;
33}
34
35
36static void timer_stop(void)
37{
38 unregister_nmi_handler(NMI_LOCAL, "oprofile-timer");
39 synchronize_sched(); /* Allow already-started NMIs to complete. */
40}
41
42
43int __init op_nmi_timer_init(struct oprofile_operations *ops)
44{
45 ops->start = timer_start;
46 ops->stop = timer_stop;
47 ops->cpu_type = "timer";
48 printk(KERN_INFO "oprofile: using NMI timer interrupt.\n");
49 return 0;
50}