Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm

[linux-2.6-omap-h63xx.git] / arch / x86 / oprofile / nmi_int.c

diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index 57f6c90880816b113074cf306f678f8781c04d50..022cd41ea9b4106e5884277096e80e9088a7c7a9 100644 (file)
--- 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);
 
@@ -420,9 +415,6 @@ static int __init ppro_init(char **cpu_type)
        case 15: case 23:
                *cpu_type = "i386/core_2";
                break;
-       case 26:
-               *cpu_type = "i386/core_2";
-               break;
        default:
                /* Unknown */
                return 0;
@@ -432,6 +424,16 @@ static int __init ppro_init(char **cpu_type)
        return 1;
 }
 
+static int __init arch_perfmon_init(char **cpu_type)
+{
+       if (!cpu_has_arch_perfmon)
+               return 0;
+       *cpu_type = "i386/arch_perfmon";
+       model = &op_arch_perfmon_spec;
+       arch_perfmon_setup_counters();
+       return 1;
+}
+
 /* in order to get sysfs right */
 static int using_nmi;
 
@@ -439,7 +441,7 @@ int __init op_nmi_init(struct oprofile_operations *ops)
 {
        __u8 vendor = boot_cpu_data.x86_vendor;
        __u8 family = boot_cpu_data.x86;
-       char *cpu_type;
+       char *cpu_type = NULL;
        int ret = 0;
 
        if (!cpu_has_apic)
@@ -477,19 +479,20 @@ int __init op_nmi_init(struct oprofile_operations *ops)
                switch (family) {
                        /* Pentium IV */
                case 0xf:
-                       if (!p4_init(&cpu_type))
-                               return -ENODEV;
+                       p4_init(&cpu_type);
                        break;
 
                        /* A P6-class processor */
                case 6:
-                       if (!ppro_init(&cpu_type))
-                               return -ENODEV;
+                       ppro_init(&cpu_type);
                        break;
 
                default:
-                       return -ENODEV;
+                       break;
                }
+
+               if (!cpu_type && !arch_perfmon_init(&cpu_type))
+                       return -ENODEV;
                break;
 
        default: