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authorThomas Gleixner <tglx@linutronix.de>2007-10-11 05:16:55 -0400
committerThomas Gleixner <tglx@linutronix.de>2007-10-11 05:16:55 -0400
commitff4395654dc6a3a5e35611940047114d4f3d0a7a (patch)
tree1f17f5160046496c29afeb2872153dcbb939b8a0 /arch/x86/oprofile/init.c
parent9402e12b8fef1efe9cf949fc020dcda22d9d8667 (diff)
i386: move oprofile
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/oprofile/init.c')
-rw-r--r--arch/x86/oprofile/init.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/x86/oprofile/init.c b/arch/x86/oprofile/init.c
new file mode 100644
index 000000000000..5341d481d92f
--- /dev/null
+++ b/arch/x86/oprofile/init.c
@@ -0,0 +1,48 @@
1/**
2 * @file init.c
3 *
4 * @remark Copyright 2002 OProfile authors
5 * @remark Read the file COPYING
6 *
7 * @author John Levon <levon@movementarian.org>
8 */
9
10#include <linux/oprofile.h>
11#include <linux/init.h>
12#include <linux/errno.h>
13
14/* We support CPUs that have performance counters like the Pentium Pro
15 * with the NMI mode driver.
16 */
17
18extern int op_nmi_init(struct oprofile_operations * ops);
19extern int op_nmi_timer_init(struct oprofile_operations * ops);
20extern void op_nmi_exit(void);
21extern void x86_backtrace(struct pt_regs * const regs, unsigned int depth);
22
23
24int __init oprofile_arch_init(struct oprofile_operations * ops)
25{
26 int ret;
27
28 ret = -ENODEV;
29
30#ifdef CONFIG_X86_LOCAL_APIC
31 ret = op_nmi_init(ops);
32#endif
33#ifdef CONFIG_X86_IO_APIC
34 if (ret < 0)
35 ret = op_nmi_timer_init(ops);
36#endif
37 ops->backtrace = x86_backtrace;
38
39 return ret;
40}
41
42
43void oprofile_arch_exit(void)
44{
45#ifdef CONFIG_X86_LOCAL_APIC
46 op_nmi_exit();
47#endif
48}