aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--arch/x86/oprofile/nmi_int.c147
1 files changed, 71 insertions, 76 deletions
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index 57f6c908808..370d832f398 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -28,85 +28,9 @@ static struct op_x86_model_spec const *model;
static DEFINE_PER_CPU(struct op_msrs, cpu_msrs);
static DEFINE_PER_CPU(unsigned long, saved_lvtpc);
-static int nmi_start(void);
-static void nmi_stop(void);
-static void nmi_cpu_start(void *dummy);
-static void nmi_cpu_stop(void *dummy);
-
/* 0 == registered but off, 1 == registered and on */
static int nmi_enabled = 0;
-#ifdef CONFIG_SMP
-static int oprofile_cpu_notifier(struct notifier_block *b, unsigned long action,
- void *data)
-{
- int cpu = (unsigned long)data;
- switch (action) {
- case CPU_DOWN_FAILED:
- case CPU_ONLINE:
- smp_call_function_single(cpu, nmi_cpu_start, NULL, 0);
- break;
- case CPU_DOWN_PREPARE:
- smp_call_function_single(cpu, nmi_cpu_stop, NULL, 1);
- break;
- }
- return NOTIFY_DONE;
-}
-
-static struct notifier_block oprofile_cpu_nb = {
- .notifier_call = oprofile_cpu_notifier
-};
-#endif
-
-#ifdef CONFIG_PM
-
-static int nmi_suspend(struct sys_device *dev, pm_message_t state)
-{
- /* Only one CPU left, just stop that one */
- if (nmi_enabled == 1)
- nmi_cpu_stop(NULL);
- return 0;
-}
-
-static int nmi_resume(struct sys_device *dev)
-{
- if (nmi_enabled == 1)
- nmi_cpu_start(NULL);
- return 0;
-}
-
-static struct sysdev_class oprofile_sysclass = {
- .name = "oprofile",
- .resume = nmi_resume,
- .suspend = nmi_suspend,
-};
-
-static struct sys_device device_oprofile = {
- .id = 0,
- .cls = &oprofile_sysclass,
-};
-
-static int __init init_sysfs(void)
-{
- int error;
-
- error = sysdev_class_register(&oprofile_sysclass);
- if (!error)
- error = sysdev_register(&device_oprofile);
- return error;
-}
-
-static void exit_sysfs(void)
-{
- sysdev_unregister(&device_oprofile);
- sysdev_class_unregister(&oprofile_sysclass);
-}
-
-#else
-#define init_sysfs() do { } while (0)
-#define exit_sysfs() do { } while (0)
-#endif /* CONFIG_PM */
-
static int profile_exceptions_notify(struct notifier_block *self,
unsigned long val, void *data)
{
@@ -361,6 +285,77 @@ static int nmi_create_files(struct super_block *sb, struct dentry *root)
return 0;
}
+#ifdef CONFIG_SMP
+static int oprofile_cpu_notifier(struct notifier_block *b, unsigned long action,
+ void *data)
+{
+ int cpu = (unsigned long)data;
+ switch (action) {
+ case CPU_DOWN_FAILED:
+ case CPU_ONLINE:
+ smp_call_function_single(cpu, nmi_cpu_start, NULL, 0);
+ break;
+ case CPU_DOWN_PREPARE:
+ smp_call_function_single(cpu, nmi_cpu_stop, NULL, 1);
+ break;
+ }
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block oprofile_cpu_nb = {
+ .notifier_call = oprofile_cpu_notifier
+};
+#endif
+
+#ifdef CONFIG_PM
+
+static int nmi_suspend(struct sys_device *dev, pm_message_t state)
+{
+ /* Only one CPU left, just stop that one */
+ if (nmi_enabled == 1)
+ nmi_cpu_stop(NULL);
+ return 0;
+}
+
+static int nmi_resume(struct sys_device *dev)
+{
+ if (nmi_enabled == 1)
+ nmi_cpu_start(NULL);
+ return 0;
+}
+
+static struct sysdev_class oprofile_sysclass = {
+ .name = "oprofile",
+ .resume = nmi_resume,
+ .suspend = nmi_suspend,
+};
+
+static struct sys_device device_oprofile = {
+ .id = 0,
+ .cls = &oprofile_sysclass,
+};
+
+static int __init init_sysfs(void)
+{
+ int error;
+
+ error = sysdev_class_register(&oprofile_sysclass);
+ if (!error)
+ error = sysdev_register(&device_oprofile);
+ return error;
+}
+
+static void exit_sysfs(void)
+{
+ sysdev_unregister(&device_oprofile);
+ sysdev_class_unregister(&oprofile_sysclass);
+}
+
+#else
+#define init_sysfs() do { } while (0)
+#define exit_sysfs() do { } while (0)
+#endif /* CONFIG_PM */
+
static int p4force;
module_param(p4force, int, 0);