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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/i386/oprofile/init.c
Linux-2.6.12-rc2v2.6.12-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/i386/oprofile/init.c')
-rw-r--r--arch/i386/oprofile/init.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/i386/oprofile/init.c b/arch/i386/oprofile/init.c
new file mode 100644
index 000000000000..c90332de582b
--- /dev/null
+++ b/arch/i386/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 nmi_init(struct oprofile_operations * ops);
19extern int nmi_timer_init(struct oprofile_operations * ops);
20extern void 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 = nmi_init(ops);
32#endif
33#ifdef CONFIG_X86_IO_APIC
34 if (ret < 0)
35 ret = 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 nmi_exit();
47#endif
48}