diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c
index eae010644935a..400b1b360e3c9 100644
--- a/drivers/devfreq/event/rockchip-dfi.c
+++ b/drivers/devfreq/event/rockchip-dfi.c
@@ -20,6 +20,7 @@
 #include <linux/of_device.h>
 #include <linux/bitfield.h>
 #include <linux/bits.h>
+#include <linux/perf_event.h>
 
 #include <soc/rockchip/rockchip_grf.h>
 #include <soc/rockchip/rk3399_grf.h>
@@ -41,14 +42,30 @@
 					 DDRMON_CTRL_LPDDR4 | \
 					 DDRMON_CTRL_LPDDR23)
 
+#define DDRMON_CH0_WR_NUM		0x20
+#define DDRMON_CH0_RD_NUM		0x24
 #define DDRMON_CH0_COUNT_NUM		0x28
 #define DDRMON_CH0_DFI_ACCESS_NUM	0x2c
 #define DDRMON_CH1_COUNT_NUM		0x3c
 #define DDRMON_CH1_DFI_ACCESS_NUM	0x40
 
+enum access_type {
+	PERF_EVENT_CYCLES,
+	PERF_EVENT_READ_BYTES,
+	PERF_EVENT_WRITE_BYTES,
+	PERF_EVENT_BYTES,
+	PERF_ACCESS_TYPE_MAX,
+};
+
 struct dmc_count_channel {
 	u32 access;
 	u32 total;
+	u32 read_access;
+	u32 write_access;
+};
+
+struct dmc_count_channel64 {
+	u64 count[PERF_ACCESS_TYPE_MAX];
 };
 
 struct dmc_count {
@@ -65,6 +82,7 @@ struct rockchip_dfi {
 	struct devfreq_event_desc desc;
 	struct dmc_count count;
 	struct dmc_count last_event_count;
+	struct dmc_count last;
 	struct device *dev;
 	void __iomem *regs;
 	struct regmap *regmap_pmu;
@@ -73,6 +91,15 @@ struct rockchip_dfi {
 	struct mutex mutex;
 	u32 ddr_type;
 	unsigned int channel_mask;
+	enum cpuhp_state cpuhp_state;
+	struct hlist_node node;
+	struct pmu pmu;
+	struct hrtimer timer;
+	unsigned int cpu;
+	struct dmc_count_channel64 frr;
+	int active_events;
+	int burst_len;
+	int buswidth[DMC_MAX_CHANNELS];
 };
 
 static int rockchip_dfi_enable(struct rockchip_dfi *dfi)
@@ -148,6 +175,10 @@ static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_coun
 	for (i = 0; i < DMC_MAX_CHANNELS; i++) {
 		if (!(dfi->channel_mask & BIT(i)))
 			continue;
+		count->c[i].read_access = readl_relaxed(dfi_regs +
+				DDRMON_CH0_RD_NUM + i * 20);
+		count->c[i].write_access = readl_relaxed(dfi_regs +
+				DDRMON_CH0_WR_NUM + i * 20);
 		count->c[i].access = readl_relaxed(dfi_regs +
 				DDRMON_CH0_DFI_ACCESS_NUM + i * 20);
 		count->c[i].total = readl_relaxed(dfi_regs +
@@ -218,6 +249,305 @@ static const struct devfreq_event_ops rockchip_dfi_ops = {
 	.set_event = rockchip_dfi_set_event,
 };
 
+#ifdef CONFIG_PERF_EVENTS
+
+static ssize_t ddr_perf_cpumask_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct pmu *pmu = dev_get_drvdata(dev);
+	struct rockchip_dfi *dfi = container_of(pmu, struct rockchip_dfi, pmu);
+
+	return cpumap_print_to_pagebuf(true, buf, cpumask_of(dfi->cpu));
+}
+
+static struct device_attribute ddr_perf_cpumask_attr =
+	__ATTR(cpumask, 0444, ddr_perf_cpumask_show, NULL);
+
+static struct attribute *ddr_perf_cpumask_attrs[] = {
+	&ddr_perf_cpumask_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group ddr_perf_cpumask_attr_group = {
+	.attrs = ddr_perf_cpumask_attrs,
+};
+
+PMU_EVENT_ATTR_STRING(cycles, ddr_pmu_cycles, "event=0x00")
+
+PMU_EVENT_ATTR_STRING(read-bytes, ddr_pmu_read_bytes, "event=0x01")
+PMU_EVENT_ATTR_STRING(read-bytes.unit, ddr_pmu_read_bytes_unit, "MB");
+PMU_EVENT_ATTR_STRING(read-bytes.scale, ddr_pmu_read_bytes_scale, "9.536743164e-07");
+
+PMU_EVENT_ATTR_STRING(write-bytes, ddr_pmu_write_bytes, "event=0x02")
+PMU_EVENT_ATTR_STRING(write-bytes.unit, ddr_pmu_write_bytes_unit, "MB");
+PMU_EVENT_ATTR_STRING(write-bytes.scale, ddr_pmu_write_bytes_scale, "9.536743164e-07");
+
+PMU_EVENT_ATTR_STRING(bytes, ddr_pmu_bytes, "event=0x03")
+PMU_EVENT_ATTR_STRING(bytes.unit, ddr_pmu_bytes_unit, "MB");
+PMU_EVENT_ATTR_STRING(bytes.scale, ddr_pmu_bytes_scale, "9.536743164e-07");
+
+static struct attribute *ddr_perf_events_attrs[] = {
+	&ddr_pmu_cycles.attr.attr,
+	&ddr_pmu_read_bytes.attr.attr,
+	&ddr_pmu_read_bytes_unit.attr.attr,
+	&ddr_pmu_read_bytes_scale.attr.attr,
+	&ddr_pmu_write_bytes.attr.attr,
+	&ddr_pmu_write_bytes_unit.attr.attr,
+	&ddr_pmu_write_bytes_scale.attr.attr,
+	&ddr_pmu_bytes.attr.attr,
+	&ddr_pmu_bytes_unit.attr.attr,
+	&ddr_pmu_bytes_scale.attr.attr,
+	NULL,
+};
+
+static const struct attribute_group ddr_perf_events_attr_group = {
+	.name = "events",
+	.attrs = ddr_perf_events_attrs,
+};
+
+PMU_FORMAT_ATTR(event, "config:0-7");
+
+static struct attribute *ddr_perf_format_attrs[] = {
+	&format_attr_event.attr,
+	NULL,
+};
+
+static const struct attribute_group ddr_perf_format_attr_group = {
+	.name = "format",
+	.attrs = ddr_perf_format_attrs,
+};
+
+static const struct attribute_group *attr_groups[] = {
+	&ddr_perf_events_attr_group,
+	&ddr_perf_cpumask_attr_group,
+	&ddr_perf_format_attr_group,
+	NULL,
+};
+
+static int rockchip_ddr_perf_event_init(struct perf_event *event)
+{
+	struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu);
+
+	if (event->attr.type != event->pmu->type)
+		return -ENOENT;
+
+	if (event->attach_state & PERF_ATTACH_TASK)
+		return -EOPNOTSUPP;
+
+	if (event->cpu < 0) {
+		dev_warn(dfi->dev, "Can't provide per-task data!\n");
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+static void rockchip_ddr_perf_update_counters(struct rockchip_dfi *dfi)
+{
+	struct dmc_count count;
+	struct dmc_count *last = &dfi->last;
+	int blen = dfi->burst_len;
+	u32 diff;
+	int i;
+
+	rockchip_dfi_read_counters(dfi, &count);
+
+	diff = count.c[0].total - last->c[0].total;
+	dfi->frr.count[PERF_EVENT_CYCLES] += diff;
+
+	for (i = 0; i < DMC_MAX_CHANNELS; i++) {
+		if (!(dfi->channel_mask & BIT(i)))
+			continue;
+
+		diff = count.c[i].read_access - last->c[i].read_access;
+		dfi->frr.count[PERF_EVENT_READ_BYTES] += (u64)diff * blen * dfi->buswidth[i];
+
+		diff = count.c[i].write_access - last->c[i].write_access;
+		dfi->frr.count[PERF_EVENT_WRITE_BYTES] += (u64)diff * blen * dfi->buswidth[i];
+
+		diff = count.c[i].access - last->c[i].access;
+		dfi->frr.count[PERF_EVENT_BYTES] += (u64)diff * blen * dfi->buswidth[i];
+	}
+
+	dfi->last = count;
+}
+
+static void rockchip_ddr_perf_event_update(struct perf_event *event)
+{
+	struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu);
+	s64 prev;
+	u64 now;
+
+	rockchip_ddr_perf_update_counters(dfi);
+
+	now = dfi->frr.count[event->attr.config];
+	prev = local64_xchg(&event->hw.prev_count, now);
+	local64_add(now - prev, &event->count);
+}
+
+static void rockchip_ddr_perf_event_start(struct perf_event *event, int flags)
+{
+	struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu);
+
+	rockchip_ddr_perf_update_counters(dfi);
+
+	local64_set(&event->hw.prev_count, dfi->frr.count[event->attr.config]);
+}
+
+static int rockchip_ddr_perf_event_add(struct perf_event *event, int flags)
+{
+	struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu);
+	struct hw_perf_event *hwc = &event->hw;
+
+	hwc->state |= PERF_HES_STOPPED;
+
+	dfi->active_events++;
+
+	if (dfi->active_events == 1) {
+		rockchip_dfi_enable(dfi);
+		hrtimer_start(&dfi->timer, 0, HRTIMER_MODE_REL);
+	}
+
+	if (flags & PERF_EF_START)
+		rockchip_ddr_perf_event_start(event, flags);
+
+	return 0;
+}
+
+static void rockchip_ddr_perf_event_stop(struct perf_event *event, int flags)
+{
+	rockchip_ddr_perf_event_update(event);
+}
+
+static void rockchip_ddr_perf_event_del(struct perf_event *event, int flags)
+{
+	struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu);
+
+	rockchip_ddr_perf_event_stop(event, PERF_EF_UPDATE);
+
+	dfi->active_events--;
+
+	if (dfi->active_events == 0) {
+		hrtimer_cancel(&dfi->timer);
+		rockchip_dfi_disable(dfi);
+	}
+}
+
+static enum hrtimer_restart rockchip_dfi_timer(struct hrtimer *timer)
+{
+	struct rockchip_dfi *dfi = container_of(timer, struct rockchip_dfi, timer);
+	ktime_t timeout;
+
+	rockchip_ddr_perf_update_counters(dfi);
+
+	timeout = ns_to_ktime(NSEC_PER_SEC);
+	hrtimer_forward_now(&dfi->timer, timeout);
+
+	return HRTIMER_RESTART;
+};
+
+static int ddr_perf_offline_cpu(unsigned int cpu, struct hlist_node *node)
+{
+	struct rockchip_dfi *dfi = hlist_entry_safe(node, struct rockchip_dfi, node);
+	int target;
+
+	if (cpu != dfi->cpu)
+		return 0;
+
+	target = cpumask_any_but(cpu_online_mask, cpu);
+	if (target >= nr_cpu_ids)
+		return 0;
+
+	perf_pmu_migrate_context(&dfi->pmu, cpu, target);
+	dfi->cpu = target;
+
+	return 0;
+}
+
+static int rockchip_ddr_perf_init(struct rockchip_dfi *dfi)
+{
+	struct pmu *pmu = &dfi->pmu;
+	int ret;
+
+	pmu->module = THIS_MODULE;
+	pmu->capabilities = PERF_PMU_CAP_NO_EXCLUDE;
+	pmu->task_ctx_nr = perf_invalid_context;
+	pmu->attr_groups = attr_groups;
+	pmu->event_init  = rockchip_ddr_perf_event_init;
+	pmu->add = rockchip_ddr_perf_event_add;
+	pmu->del = rockchip_ddr_perf_event_del;
+	pmu->start = rockchip_ddr_perf_event_start;
+	pmu->stop = rockchip_ddr_perf_event_stop;
+	pmu->read = rockchip_ddr_perf_event_update;
+
+	dfi->cpu = raw_smp_processor_id();
+
+	ret = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
+				      "rockchip_ddr_perf_pmu",
+				      NULL,
+				      ddr_perf_offline_cpu);
+
+	if (ret < 0) {
+		dev_err(dfi->dev, "cpuhp_setup_state_multi failed: %d\n", ret);
+		return ret;
+	}
+
+	dfi->cpuhp_state = ret;
+
+	/* Register the pmu instance for cpu hotplug */
+	ret = cpuhp_state_add_instance_nocalls(dfi->cpuhp_state, &dfi->node);
+	if (ret) {
+		dev_err(dfi->dev, "Error %d registering hotplug\n", ret);
+		goto cpuhp_instance_err;
+	}
+
+	hrtimer_init(&dfi->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+	dfi->timer.function = rockchip_dfi_timer;
+
+	switch (dfi->ddr_type) {
+	case ROCKCHIP_DDRTYPE_LPDDR2:
+	case ROCKCHIP_DDRTYPE_LPDDR3:
+		dfi->burst_len = 8;
+		break;
+	case ROCKCHIP_DDRTYPE_LPDDR4:
+	case ROCKCHIP_DDRTYPE_LPDDR4X:
+		dfi->burst_len = 16;
+		break;
+	}
+
+	ret = perf_pmu_register(pmu, "rockchip_ddr", -1);
+	if (ret)
+		goto ddr_perf_err;
+
+	return 0;
+
+ddr_perf_err:
+	cpuhp_state_remove_instance_nocalls(dfi->cpuhp_state, &dfi->node);
+cpuhp_instance_err:
+	cpuhp_remove_multi_state(dfi->cpuhp_state);
+
+	return ret;
+}
+
+static void rockchip_ddr_perf_remove(struct rockchip_dfi *dfi)
+{
+	cpuhp_state_remove_instance_nocalls(dfi->cpuhp_state, &dfi->node);
+	cpuhp_remove_multi_state(dfi->cpuhp_state);
+
+	perf_pmu_unregister(&dfi->pmu);
+}
+
+#else
+static int rockchip_ddr_perf_init(struct rockchip_dfi *dfi)
+{
+	return 0;
+}
+
+static void rockchip_ddr_perf_remove(struct rockchip_dfi *dfi)
+{
+}
+#endif
+
 static int rk3399_dfi_init(struct rockchip_dfi *dfi)
 {
 	struct regmap *regmap_pmu = dfi->regmap_pmu;
@@ -234,6 +564,9 @@ static int rk3399_dfi_init(struct rockchip_dfi *dfi)
 
 	dfi->channel_mask = 3;
 
+	dfi->buswidth[0] = FIELD_GET(RK3399_PMUGRF_OS_REG2_BW_CH0, val) == 0 ? 4 : 2;
+	dfi->buswidth[1] = FIELD_GET(RK3399_PMUGRF_OS_REG2_BW_CH1, val) == 0 ? 4 : 2;
+
 	return 0;
 };
 
@@ -250,6 +583,8 @@ static int rk3568_dfi_init(struct rockchip_dfi *dfi)
 	if (FIELD_GET(RK3568_PMUGRF_OS_REG3_SYSREG_VERSION, reg3) >= 0x3)
 		dfi->ddr_type |= FIELD_GET(RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3, reg3) << 3;
 
+	dfi->buswidth[0] = FIELD_GET(RK3568_PMUGRF_OS_REG2_BW_CH0, reg2) == 0 ? 4 : 2;
+
 	dfi->channel_mask = 1;
 
 	return 0;
@@ -325,13 +660,27 @@ static int rockchip_dfi_probe(struct platform_device *pdev)
 		return PTR_ERR(dfi->edev);
 	}
 
+	ret = rockchip_ddr_perf_init(dfi);
+	if (ret)
+		return ret;
+
 	platform_set_drvdata(pdev, dfi);
 
 	return 0;
 }
 
+static int rockchip_dfi_remove(struct platform_device *pdev)
+{
+	struct rockchip_dfi *dfi = platform_get_drvdata(pdev);
+
+	rockchip_ddr_perf_remove(dfi);
+
+	return 0;
+}
+
 static struct platform_driver rockchip_dfi_driver = {
 	.probe	= rockchip_dfi_probe,
+	.remove	= rockchip_dfi_remove,
 	.driver = {
 		.name	= "rockchip-dfi",
 		.of_match_table = rockchip_dfi_id_match,
diff --git a/include/soc/rockchip/rk3399_grf.h b/include/soc/rockchip/rk3399_grf.h
index 775f8444bea8d..39cd44cec982f 100644
--- a/include/soc/rockchip/rk3399_grf.h
+++ b/include/soc/rockchip/rk3399_grf.h
@@ -12,5 +12,7 @@
 /* PMU GRF Registers */
 #define RK3399_PMUGRF_OS_REG2		0x308
 #define RK3399_PMUGRF_OS_REG2_DDRTYPE		GENMASK(15, 13)
+#define RK3399_PMUGRF_OS_REG2_BW_CH0		GENMASK(3, 2)
+#define RK3399_PMUGRF_OS_REG2_BW_CH1		GENMASK(19, 18)
 
 #endif
diff --git a/include/soc/rockchip/rk3568_grf.h b/include/soc/rockchip/rk3568_grf.h
index 575584e9d8834..52853efd6720e 100644
--- a/include/soc/rockchip/rk3568_grf.h
+++ b/include/soc/rockchip/rk3568_grf.h
@@ -4,6 +4,7 @@
 
 #define RK3568_PMUGRF_OS_REG2		0x208
 #define RK3568_PMUGRF_OS_REG2_DRAMTYPE_INFO		GENMASK(15, 13)
+#define RK3568_PMUGRF_OS_REG2_BW_CH0			GENMASK(3, 2)
 
 #define RK3568_PMUGRF_OS_REG3		0x20c
 #define RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3		GENMASK(13, 12)
