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authorThomas Gleixner <tglx@linutronix.de>2007-10-11 11:16:55 +0200
committerThomas Gleixner <tglx@linutronix.de>2007-10-11 11:16:55 +0200
commitff4395654dc6a3a5e35611940047114d4f3d0a7a (patch)
tree1f17f5160046496c29afeb2872153dcbb939b8a0 /arch/x86/oprofile/init.c
parent9402e12b8fef1efe9cf949fc020dcda22d9d8667 (diff)
downloadlinux-2.6.38-lt-ux500-ff4395654dc6a3a5e35611940047114d4f3d0a7a.tar.gz
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 00000000000..5341d481d92
--- /dev/null
+++ b/arch/x86/oprofile/init.c
@@ -0,0 +1,48 @@
+/**
+ * @file init.c
+ *
+ * @remark Copyright 2002 OProfile authors
+ * @remark Read the file COPYING
+ *
+ * @author John Levon <levon@movementarian.org>
+ */
+
+#include <linux/oprofile.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+
+/* We support CPUs that have performance counters like the Pentium Pro
+ * with the NMI mode driver.
+ */
+
+extern int op_nmi_init(struct oprofile_operations * ops);
+extern int op_nmi_timer_init(struct oprofile_operations * ops);
+extern void op_nmi_exit(void);
+extern void x86_backtrace(struct pt_regs * const regs, unsigned int depth);
+
+
+int __init oprofile_arch_init(struct oprofile_operations * ops)
+{
+ int ret;
+
+ ret = -ENODEV;
+
+#ifdef CONFIG_X86_LOCAL_APIC
+ ret = op_nmi_init(ops);
+#endif
+#ifdef CONFIG_X86_IO_APIC
+ if (ret < 0)
+ ret = op_nmi_timer_init(ops);
+#endif
+ ops->backtrace = x86_backtrace;
+
+ return ret;
+}
+
+
+void oprofile_arch_exit(void)
+{
+#ifdef CONFIG_X86_LOCAL_APIC
+ op_nmi_exit();
+#endif
+}