diff --git a/arch/arm/oprofile/Makefile b/arch/arm/oprofile/Makefile
index e666eaf..038d7af 100644
--- a/arch/arm/oprofile/Makefile
+++ b/arch/arm/oprofile/Makefile
@@ -6,4 +6,8 @@ DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
 		oprofilefs.o oprofile_stats.o \
 		timer_int.o )
 
+ifeq ($(CONFIG_HW_PERF_EVENTS), y)
+DRIVER_OBJS += $(addprefix ../../../drivers/oprofile/, oprofile_perf.o)
+endif
+
 oprofile-y				:= $(DRIVER_OBJS) common.o
diff --git a/arch/arm/oprofile/common.c b/arch/arm/oprofile/common.c
index 482779c..f4ea5f8 100644
--- a/arch/arm/oprofile/common.c
+++ b/arch/arm/oprofile/common.c
@@ -25,136 +25,9 @@
 #include <asm/ptrace.h>
 
 #ifdef CONFIG_HW_PERF_EVENTS
-/*
- * Per performance monitor configuration as set via oprofilefs.
- */
-struct op_counter_config {
-	unsigned long count;
-	unsigned long enabled;
-	unsigned long event;
-	unsigned long unit_mask;
-	unsigned long kernel;
-	unsigned long user;
-	struct perf_event_attr attr;
-};
-
 static int op_arm_enabled;
 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.
- */
-static void op_overflow_handler(struct perf_event *event, int unused,
-			struct perf_sample_data *data, struct pt_regs *regs)
-{
-	int id;
-	u32 cpu = smp_processor_id();
-
-	for (id = 0; id < perf_num_counters; ++id)
-		if (perf_events[cpu][id] == event)
-			break;
-
-	if (id != perf_num_counters)
-		oprofile_add_sample(regs, id);
-	else
-		pr_warning("oprofile: ignoring spurious overflow "
-				"on cpu %u\n", cpu);
-}
-
-/*
- * Called by op_arm_setup to create perf attributes to mirror the oprofile
- * settings in counter_config. Attributes are created as `pinned' events and
- * so are permanently scheduled on the PMU.
- */
-static void op_perf_setup(void)
-{
-	int i;
-	u32 size = sizeof(struct perf_event_attr);
-	struct perf_event_attr *attr;
-
-	for (i = 0; i < perf_num_counters; ++i) {
-		attr = &counter_config[i].attr;
-		memset(attr, 0, size);
-		attr->type		= PERF_TYPE_RAW;
-		attr->size		= size;
-		attr->config		= counter_config[i].event;
-		attr->sample_period	= counter_config[i].count;
-		attr->pinned		= 1;
-	}
-}
-
-static int op_create_counter(int cpu, int event)
-{
-	int ret = 0;
-	struct perf_event *pevent;
-
-	if (!counter_config[event].enabled || (perf_events[cpu][event] != NULL))
-		return ret;
-
-	pevent = perf_event_create_kernel_counter(&counter_config[event].attr,
-						  cpu, -1,
-						  op_overflow_handler);
-
-	if (IS_ERR(pevent)) {
-		ret = PTR_ERR(pevent);
-	} else if (pevent->state != PERF_EVENT_STATE_ACTIVE) {
-		pr_warning("oprofile: failed to enable event %d "
-				"on CPU %d\n", event, cpu);
-		ret = -EBUSY;
-	} else {
-		perf_events[cpu][event] = pevent;
-	}
-
-	return ret;
-}
-
-static void op_destroy_counter(int cpu, int event)
-{
-	struct perf_event *pevent = perf_events[cpu][event];
-
-	if (pevent) {
-		perf_event_release_kernel(pevent);
-		perf_events[cpu][event] = NULL;
-	}
-}
-
-/*
- * Called by op_arm_start to create active perf events based on the
- * perviously configured attributes.
- */
-static int op_perf_start(void)
-{
-	int cpu, event, ret = 0;
-
-	for_each_online_cpu(cpu) {
-		for (event = 0; event < perf_num_counters; ++event) {
-			ret = op_create_counter(cpu, event);
-			if (ret)
-				goto out;
-		}
-	}
-
-out:
-	return ret;
-}
-
-/*
- * Called by op_arm_stop at the end of a profiling run.
- */
-static void op_perf_stop(void)
-{
-	int cpu, event;
-
-	for_each_online_cpu(cpu)
-		for (event = 0; event < perf_num_counters; ++event)
-			op_destroy_counter(cpu, event);
-}
-
-
 static char *op_name_from_perf_id(enum arm_perf_pmu_ids id)
 {
 	switch (id) {
@@ -175,31 +48,10 @@ static char *op_name_from_perf_id(enum arm_perf_pmu_ids id)
 	}
 }
 
-static int op_arm_create_files(struct super_block *sb, struct dentry *root)
-{
-	unsigned int i;
-
-	for (i = 0; i < perf_num_counters; i++) {
-		struct dentry *dir;
-		char buf[4];
-
-		snprintf(buf, sizeof buf, "%d", i);
-		dir = oprofilefs_mkdir(sb, root, buf);
-		oprofilefs_create_ulong(sb, dir, "enabled", &counter_config[i].enabled);
-		oprofilefs_create_ulong(sb, dir, "event", &counter_config[i].event);
-		oprofilefs_create_ulong(sb, dir, "count", &counter_config[i].count);
-		oprofilefs_create_ulong(sb, dir, "unit_mask", &counter_config[i].unit_mask);
-		oprofilefs_create_ulong(sb, dir, "kernel", &counter_config[i].kernel);
-		oprofilefs_create_ulong(sb, dir, "user", &counter_config[i].user);
-	}
-
-	return 0;
-}
-
 static int op_arm_setup(void)
 {
 	spin_lock(&oprofilefs_lock);
-	op_perf_setup();
+	oprofile_perf_setup();
 	spin_unlock(&oprofilefs_lock);
 	return 0;
 }
@@ -211,7 +63,7 @@ static int op_arm_start(void)
 	mutex_lock(&op_arm_mutex);
 	if (!op_arm_enabled) {
 		ret = 0;
-		op_perf_start();
+		oprofile_perf_start();
 		op_arm_enabled = 1;
 	}
 	mutex_unlock(&op_arm_mutex);
@@ -222,7 +74,7 @@ static void op_arm_stop(void)
 {
 	mutex_lock(&op_arm_mutex);
 	if (op_arm_enabled)
-		op_perf_stop();
+		oprofile_perf_stop();
 	op_arm_enabled = 0;
 	mutex_unlock(&op_arm_mutex);
 }
@@ -232,7 +84,7 @@ static int op_arm_suspend(struct platform_device *dev, pm_message_t state)
 {
 	mutex_lock(&op_arm_mutex);
 	if (op_arm_enabled)
-		op_perf_stop();
+		oprofile_perf_stop();
 	mutex_unlock(&op_arm_mutex);
 	return 0;
 }
@@ -240,7 +92,7 @@ static int op_arm_suspend(struct platform_device *dev, pm_message_t state)
 static int op_arm_resume(struct platform_device *dev)
 {
 	mutex_lock(&op_arm_mutex);
-	if (op_arm_enabled && op_perf_start())
+	if (op_arm_enabled && oprofile_perf_start())
 		op_arm_enabled = 0;
 	mutex_unlock(&op_arm_mutex);
 	return 0;
@@ -351,37 +203,16 @@ static void arm_backtrace(struct pt_regs * const regs, unsigned int depth)
 
 int __init oprofile_arch_init(struct oprofile_operations *ops)
 {
-	int cpu, ret = 0;
-
-	perf_num_counters = armpmu_get_max_events();
-
-	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);
-		return -ENOMEM;
-	}
+	int ret = 0;
 
 	ret = init_driverfs();
 	if (ret)
 		return ret;
 
-	for_each_possible_cpu(cpu) {
-		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);
-			while (--cpu >= 0)
-				kfree(perf_events[cpu]);
-			return -ENOMEM;
-		}
-	}
+	oprofile_perf_set_num_counters(armpmu_get_max_events());
 
 	ops->backtrace		= arm_backtrace;
-	ops->create_files	= op_arm_create_files;
+	ops->create_files	= oprofile_perf_create_files;
 	ops->setup		= op_arm_setup;
 	ops->start		= op_arm_start;
 	ops->stop		= op_arm_stop;
@@ -389,33 +220,21 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
 	ops->cpu_type		= op_name_from_perf_id(armpmu_get_pmu_id());
 
 	if (!ops->cpu_type)
-		ret = -ENODEV;
-	else
-		pr_info("oprofile: using %s\n", ops->cpu_type);
+		return -ENODEV;
 
-	return ret;
+	ret = oprofile_perf_init();
+	if (ret != 0)
+		return ret;
+
+	pr_info("oprofile: using %s\n", ops->cpu_type);
+
+	return 0;
 }
 
 void oprofile_arch_exit(void)
 {
-	int cpu, id;
-	struct perf_event *event;
-
+	oprofile_perf_exit();
 	exit_driverfs();
-
-	if (*perf_events) {
-		for_each_possible_cpu(cpu) {
-			for (id = 0; id < perf_num_counters; ++id) {
-				event = perf_events[cpu][id];
-				if (event != NULL)
-					perf_event_release_kernel(event);
-			}
-			kfree(perf_events[cpu]);
-		}
-	}
-
-	if (counter_config)
-		kfree(counter_config);
 }
 #else
 int __init oprofile_arch_init(struct oprofile_operations *ops)
diff --git a/drivers/oprofile/oprofile_perf.c b/drivers/oprofile/oprofile_perf.c
new file mode 100644
index 0000000..5f83cd7
--- /dev/null
+++ b/drivers/oprofile/oprofile_perf.c
@@ -0,0 +1,209 @@
+/*
+ * Copyright 2010 ARM Ltd.
+ *
+ * Perf-events backend for OProfile.
+ */
+#include <linux/slab.h>
+#include <linux/oprofile.h>
+#include <linux/perf_event.h>
+
+/* Per-counter configuration as set via oprofilefs.  */
+struct op_counter_config {
+	unsigned long enabled;
+	unsigned long event;
+
+	unsigned long count;
+
+	/* Dummy values for userspace tool compliance */
+	unsigned long kernel;
+	unsigned long user;
+	unsigned long unit_mask;
+
+	struct perf_event_attr attr;
+};
+
+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.
+ */
+static void op_overflow_handler(struct perf_event *event, int unused,
+				struct perf_sample_data *data,
+				struct pt_regs *regs)
+{
+	int id;
+	u32 cpu = smp_processor_id();
+
+	for (id = 0; id < perf_num_counters; ++id)
+		if (perf_events[cpu][id] == event)
+			break;
+
+	if (id != perf_num_counters)
+		oprofile_add_sample(regs, id);
+	else
+		pr_warning("oprofile: ignoring spurious overflow "
+				"on cpu %u\n", cpu);
+}
+
+/*
+ * Create perf attributes to mirror the oprofile settings in
+ * counter_config. Attributes are created as `pinned' events and so are
+ * permanently scheduled on the PMU.
+ */
+int oprofile_perf_setup(void)
+{
+	int i;
+	u32 attr_size = sizeof(struct perf_event_attr);
+	struct perf_event_attr *attr;
+
+	for (i = 0; i < perf_num_counters; ++i) {
+		attr = &counter_config[i].attr;
+		memset(attr, 0, attr_size);
+		attr->type		= PERF_TYPE_RAW;
+		attr->size		= attr_size;
+		attr->config		= counter_config[i].event;
+		attr->sample_period	= counter_config[i].count;
+		attr->pinned		= 1;
+	}
+
+	return 0;
+}
+
+int oprofile_create_counter(int cpu, int event)
+{
+	int ret = 0;
+	struct perf_event *pevent;
+
+	if (!counter_config[event].enabled || (perf_events[cpu][event] != NULL))
+		return ret;
+
+	pevent = perf_event_create_kernel_counter(&counter_config[event].attr,
+						  cpu, -1,
+						  op_overflow_handler);
+
+	if (IS_ERR(pevent)) {
+		ret = PTR_ERR(pevent);
+	} else if (pevent->state != PERF_EVENT_STATE_ACTIVE) {
+		pr_warning("oprofile: failed to enable event %d "
+				"on CPU %d\n", event, cpu);
+		ret = -EBUSY;
+	} else {
+		perf_events[cpu][event] = pevent;
+	}
+
+	return ret;
+}
+
+void oprofile_destroy_counter(int cpu, int event)
+{
+	struct perf_event *pevent = perf_events[cpu][event];
+
+	if (pevent) {
+		perf_event_release_kernel(pevent);
+		perf_events[cpu][event] = NULL;
+	}
+}
+
+int oprofile_perf_init(void)
+{
+	u32 counter_size = sizeof(struct op_counter_config);
+	int cpu;
+
+	counter_config = kcalloc(perf_num_counters, counter_size, GFP_KERNEL);
+
+	if (!counter_config) {
+		pr_info("oprofile: failed to allocate %d "
+				"counters\n", perf_num_counters);
+		return -ENOMEM;
+	}
+
+	for_each_possible_cpu(cpu) {
+		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);
+			while (--cpu >= 0)
+				kfree(perf_events[cpu]);
+			kfree(counter_config);
+			return -ENOMEM;
+		}
+	}
+
+	return 0;
+}
+
+void oprofile_perf_exit(void)
+{
+	int id, cpu;
+
+	for_each_possible_cpu(cpu) {
+		for (id = 0; id < perf_num_counters; ++id)
+			oprofile_destroy_counter(cpu, id);
+
+		kfree(perf_events[cpu]);
+	}
+
+	kfree(counter_config);
+}
+
+/*
+ * Create active perf events based on the perviously configured
+ * attributes.
+ */
+int oprofile_perf_start(void)
+{
+	int cpu, event, ret = 0;
+
+	for_each_online_cpu(cpu) {
+		for (event = 0; event < perf_num_counters; ++event) {
+			ret = oprofile_create_counter(cpu, event);
+			if (ret)
+				goto out;
+		}
+	}
+
+out:
+	return ret;
+}
+
+/*
+ * Called at the end of a profiling run.
+ */
+void oprofile_perf_stop(void)
+{
+	int cpu, event;
+
+	for_each_online_cpu(cpu)
+		for (event = 0; event < perf_num_counters; ++event)
+			oprofile_destroy_counter(cpu, event);
+}
+
+
+int oprofile_perf_create_files(struct super_block *sb, struct dentry *root)
+{
+	int i;
+
+	for (i = 0; i < perf_num_counters; i++) {
+		struct dentry *dir;
+		char buf[4];
+
+		snprintf(buf, sizeof buf, "%d", i);
+		dir = oprofilefs_mkdir(sb, root, buf);
+		oprofilefs_create_ulong(sb, dir, "enabled", &counter_config[i].enabled);
+		oprofilefs_create_ulong(sb, dir, "event", &counter_config[i].event);
+		oprofilefs_create_ulong(sb, dir, "count", &counter_config[i].count);
+		oprofilefs_create_ulong(sb, dir, "unit_mask", &counter_config[i].unit_mask);
+		oprofilefs_create_ulong(sb, dir, "kernel", &counter_config[i].kernel);
+		oprofilefs_create_ulong(sb, dir, "user", &counter_config[i].user);
+	}
+
+	return 0;
+}
+
+void oprofile_perf_set_num_counters(int num_counters)
+{
+	perf_num_counters = num_counters;
+}
diff --git a/include/linux/oprofile.h b/include/linux/oprofile.h
index 5171639..99e0323 100644
--- a/include/linux/oprofile.h
+++ b/include/linux/oprofile.h
@@ -185,4 +185,16 @@ int oprofile_add_data(struct op_entry *entry, unsigned long val);
 int oprofile_add_data64(struct op_entry *entry, u64 val);
 int oprofile_write_commit(struct op_entry *entry);
 
+/* Oprofile perf wrapper functions. */
+
+#ifdef CONFIG_PERF_EVENTS
+int oprofile_perf_init(void);
+void oprofile_perf_exit(void);
+int oprofile_perf_setup(void);
+int oprofile_perf_start(void);
+void oprofile_perf_stop(void);
+int oprofile_perf_create_files(struct super_block *sb, struct dentry *root);
+void oprofile_perf_set_num_counters(int num_counters);
+#endif /* CONFIG_PERF_EVENTS */
+
 #endif /* OPROFILE_H */
