@@ -123,6 +123,12 @@ armpmu_get_max_events(void)
 }
 EXPORT_SYMBOL_GPL(armpmu_get_max_events);
 
+int perf_num_counters(void)
+{
+	return armpmu_get_max_events();
+}
+EXPORT_SYMBOL_GPL(perf_num_counters);
+
 #define HW_OP_UNSUPPORTED		0xFFFF
 
 #define C(_x) \

@@ -43,7 +43,6 @@ static DEFINE_MUTEX(op_arm_mutex);
 
 static struct op_counter_config *counter_config;
 static struct perf_event **perf_events[nr_cpumask_bits];
-static int perf_num_counters;
 
 /*
  * Overflow callback for oprofile.

@@ -54,11 +53,11 @@ static void op_overflow_handler(struct perf_event *event, int unused,
 	int id;
 	u32 cpu = smp_processor_id();
 
-	for (id = 0; id < perf_num_counters; ++id)
+	for (id = 0; id < perf_num_counters(); ++id)
 		if (perf_events[cpu][id] == event)
 			break;
 
-	if (id != perf_num_counters)
+	if (id != perf_num_counters())
 		oprofile_add_sample(regs, id);
 	else
 		pr_warning("oprofile: ignoring spurious overflow "

@@ -76,7 +75,7 @@ static void op_perf_setup(void)
 	u32 size = sizeof(struct perf_event_attr);
 	struct perf_event_attr *attr;
 
-	for (i = 0; i < perf_num_counters; ++i) {
+	for (i = 0; i < perf_num_counters(); ++i) {
 		attr = &counter_config[i].attr;
 		memset(attr, 0, size);
 		attr->type		= PERF_TYPE_RAW;

@@ -131,7 +130,7 @@ static int op_perf_start(void)
 	int cpu, event, ret = 0;
 
 	for_each_online_cpu(cpu) {
-		for (event = 0; event < perf_num_counters; ++event) {
+		for (event = 0; event < perf_num_counters(); ++event) {
 			ret = op_create_counter(cpu, event);
 			if (ret)
 				goto out;

@@ -150,7 +149,7 @@ static void op_perf_stop(void)
 	int cpu, event;
 
 	for_each_online_cpu(cpu)
-		for (event = 0; event < perf_num_counters; ++event)
+		for (event = 0; event < perf_num_counters(); ++event)
 			op_destroy_counter(cpu, event);
 }
 

@@ -179,7 +178,7 @@ static int op_arm_create_files(struct super_block *sb, struct dentry *root)
 {
 	unsigned int i;
 
-	for (i = 0; i < perf_num_counters; i++) {
+	for (i = 0; i < perf_num_counters(); i++) {
 		struct dentry *dir;
 		char buf[4];
 

@@ -353,14 +352,12 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
 
 	memset(&perf_events, 0, sizeof(perf_events));
 
-	perf_num_counters = armpmu_get_max_events();
-
-	counter_config = kcalloc(perf_num_counters,
+	counter_config = kcalloc(perf_num_counters(),
 			sizeof(struct op_counter_config), GFP_KERNEL);
 
 	if (!counter_config) {
 		pr_info("oprofile: failed to allocate %d "
-				"counters\n", perf_num_counters);
+				"counters\n", perf_num_counters());
 		ret = -ENOMEM;
 		goto out;
 	}

@@ -370,11 +367,11 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
 		goto out;
 
 	for_each_possible_cpu(cpu) {
-		perf_events[cpu] = kcalloc(perf_num_counters,
+		perf_events[cpu] = kcalloc(perf_num_counters(),
 				sizeof(struct perf_event *), GFP_KERNEL);
 		if (!perf_events[cpu]) {
 			pr_info("oprofile: failed to allocate %d perf events "
-					"for cpu %d\n", perf_num_counters, cpu);
+					"for cpu %d\n", perf_num_counters(), cpu);
 			ret = -ENOMEM;
 			goto out;
 		}

@@ -409,7 +406,7 @@ void __exit oprofile_arch_exit(void)
 	struct perf_event *event;
 
 	for_each_possible_cpu(cpu) {
-		for (id = 0; id < perf_num_counters; ++id) {
+		for (id = 0; id < perf_num_counters(); ++id) {
 			event = perf_events[cpu][id];
 			if (event)
 				perf_event_release_kernel(event);

@@ -59,6 +59,15 @@ static inline int sh_pmu_initialized(void)
 	return !!sh_pmu;
 }
 
+int perf_num_counters(void)
+{
+	if (!sh_pmu)
+		return 0;
+
+	return sh_pmu->num_events;
+}
+EXPORT_SYMBOL_GPL(perf_num_counters);
+
 /*
  * Release the PMU if this is the last perf_event.
  */

@@ -849,6 +849,7 @@ extern int perf_max_events;
 
 extern const struct pmu *hw_perf_event_init(struct perf_event *event);
 
+extern int perf_num_counters(void);
 extern void perf_event_task_sched_in(struct task_struct *task);
 extern void perf_event_task_sched_out(struct task_struct *task, struct task_struct *next);
 extern void perf_event_task_tick(struct task_struct *task);