diff options
Diffstat (limited to 'arch/x86/oprofile/nmi_timer_int.c')
-rw-r--r-- | arch/x86/oprofile/nmi_timer_int.c | 50 |
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 | |||
21 | static 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 | |||
27 | static 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 | |||
36 | static 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 | |||
43 | int __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 | } | ||