summaryrefslogtreecommitdiffstats
path: root/drivers/perf
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/perf')
-rw-r--r--drivers/perf/fsl_imx9_ddr_perf.c106
1 files changed, 68 insertions, 38 deletions
diff --git a/drivers/perf/fsl_imx9_ddr_perf.c b/drivers/perf/fsl_imx9_ddr_perf.c
index 08cb1bfb09de..5433c52a9872 100644
--- a/drivers/perf/fsl_imx9_ddr_perf.c
+++ b/drivers/perf/fsl_imx9_ddr_perf.c
@@ -11,14 +11,14 @@
#include <linux/perf_event.h>
/* Performance monitor configuration */
-#define PMCFG1 0x00
-#define PMCFG1_RD_TRANS_FILT_EN BIT(31)
-#define PMCFG1_WR_TRANS_FILT_EN BIT(30)
-#define PMCFG1_RD_BT_FILT_EN BIT(29)
-#define PMCFG1_ID_MASK GENMASK(17, 0)
+#define PMCFG1 0x00
+#define MX93_PMCFG1_RD_TRANS_FILT_EN BIT(31)
+#define MX93_PMCFG1_WR_TRANS_FILT_EN BIT(30)
+#define MX93_PMCFG1_RD_BT_FILT_EN BIT(29)
+#define MX93_PMCFG1_ID_MASK GENMASK(17, 0)
-#define PMCFG2 0x04
-#define PMCFG2_ID GENMASK(17, 0)
+#define PMCFG2 0x04
+#define MX93_PMCFG2_ID GENMASK(17, 0)
/* Global control register affects all counters and takes priority over local control registers */
#define PMGC0 0x40
@@ -75,6 +75,11 @@ static const struct imx_ddr_devtype_data imx93_devtype_data = {
.identifier = "imx93",
};
+static inline bool is_imx93(struct ddr_pmu *pmu)
+{
+ return pmu->devtype_data == &imx93_devtype_data;
+}
+
static const struct of_device_id imx_ddr_pmu_dt_ids[] = {
{.compatible = "fsl,imx93-ddr-pmu", .data = &imx93_devtype_data},
{ /* sentinel */ }
@@ -122,24 +127,37 @@ static const struct attribute_group ddr_perf_cpumask_attr_group = {
.attrs = ddr_perf_cpumask_attrs,
};
+struct imx9_pmu_events_attr {
+ struct device_attribute attr;
+ u64 id;
+ const void *devtype_data;
+};
+
static ssize_t ddr_pmu_event_show(struct device *dev,
struct device_attribute *attr, char *page)
{
- struct perf_pmu_events_attr *pmu_attr;
+ struct imx9_pmu_events_attr *pmu_attr;
- pmu_attr = container_of(attr, struct perf_pmu_events_attr, attr);
+ pmu_attr = container_of(attr, struct imx9_pmu_events_attr, attr);
return sysfs_emit(page, "event=0x%02llx\n", pmu_attr->id);
}
#define COUNTER_OFFSET_IN_EVENT 8
#define ID(counter, id) ((counter << COUNTER_OFFSET_IN_EVENT) | id)
-#define IMX9_DDR_PMU_EVENT_ATTR(_name, _id) \
- (&((struct perf_pmu_events_attr[]) { \
+#define DDR_PMU_EVENT_ATTR_COMM(_name, _id, _data) \
+ (&((struct imx9_pmu_events_attr[]) { \
{ .attr = __ATTR(_name, 0444, ddr_pmu_event_show, NULL),\
- .id = _id, } \
+ .id = _id, \
+ .devtype_data = _data, } \
})[0].attr.attr)
+#define IMX9_DDR_PMU_EVENT_ATTR(_name, _id) \
+ DDR_PMU_EVENT_ATTR_COMM(_name, _id, NULL)
+
+#define IMX93_DDR_PMU_EVENT_ATTR(_name, _id) \
+ DDR_PMU_EVENT_ATTR_COMM(_name, _id, &imx93_devtype_data)
+
static struct attribute *ddr_perf_events_attrs[] = {
/* counter0 cycles event */
IMX9_DDR_PMU_EVENT_ATTR(cycles, 0),
@@ -185,7 +203,7 @@ static struct attribute *ddr_perf_events_attrs[] = {
IMX9_DDR_PMU_EVENT_ATTR(ddrc_ld_wiq_6, ID(2, 70)),
IMX9_DDR_PMU_EVENT_ATTR(ddrc_ld_wiq_7, ID(2, 71)),
IMX9_DDR_PMU_EVENT_ATTR(eddrtq_pmon_empty, ID(2, 72)),
- IMX9_DDR_PMU_EVENT_ATTR(eddrtq_pm_rd_trans_filt, ID(2, 73)),
+ IMX93_DDR_PMU_EVENT_ATTR(eddrtq_pm_rd_trans_filt, ID(2, 73)), /* imx93 specific*/
/* counter3 specific events */
IMX9_DDR_PMU_EVENT_ATTR(ddrc_qx_row_collision_0, ID(3, 64)),
@@ -197,7 +215,7 @@ static struct attribute *ddr_perf_events_attrs[] = {
IMX9_DDR_PMU_EVENT_ATTR(ddrc_qx_row_collision_6, ID(3, 70)),
IMX9_DDR_PMU_EVENT_ATTR(ddrc_qx_row_collision_7, ID(3, 71)),
IMX9_DDR_PMU_EVENT_ATTR(eddrtq_pmon_full, ID(3, 72)),
- IMX9_DDR_PMU_EVENT_ATTR(eddrtq_pm_wr_trans_filt, ID(3, 73)),
+ IMX93_DDR_PMU_EVENT_ATTR(eddrtq_pm_wr_trans_filt, ID(3, 73)), /* imx93 specific*/
/* counter4 specific events */
IMX9_DDR_PMU_EVENT_ATTR(ddrc_qx_row_open_0, ID(4, 64)),
@@ -209,7 +227,7 @@ static struct attribute *ddr_perf_events_attrs[] = {
IMX9_DDR_PMU_EVENT_ATTR(ddrc_qx_row_open_6, ID(4, 70)),
IMX9_DDR_PMU_EVENT_ATTR(ddrc_qx_row_open_7, ID(4, 71)),
IMX9_DDR_PMU_EVENT_ATTR(eddrtq_pmon_ld_rdq2_rmw, ID(4, 72)),
- IMX9_DDR_PMU_EVENT_ATTR(eddrtq_pm_rd_beat_filt, ID(4, 73)),
+ IMX93_DDR_PMU_EVENT_ATTR(eddrtq_pm_rd_beat_filt, ID(4, 73)), /* imx93 specific*/
/* counter5 specific events */
IMX9_DDR_PMU_EVENT_ATTR(ddrc_qx_valid_start_0, ID(5, 64)),
@@ -244,9 +262,29 @@ static struct attribute *ddr_perf_events_attrs[] = {
NULL,
};
+static umode_t
+ddr_perf_events_attrs_is_visible(struct kobject *kobj,
+ struct attribute *attr, int unused)
+{
+ struct pmu *pmu = dev_get_drvdata(kobj_to_dev(kobj));
+ struct ddr_pmu *ddr_pmu = to_ddr_pmu(pmu);
+ struct imx9_pmu_events_attr *eattr;
+
+ eattr = container_of(attr, typeof(*eattr), attr.attr);
+
+ if (!eattr->devtype_data)
+ return attr->mode;
+
+ if (eattr->devtype_data != ddr_pmu->devtype_data)
+ return 0;
+
+ return attr->mode;
+}
+
static const struct attribute_group ddr_perf_events_attr_group = {
.name = "events",
.attrs = ddr_perf_events_attrs,
+ .is_visible = ddr_perf_events_attrs_is_visible,
};
PMU_FORMAT_ATTR(event, "config:0-7,16-23");
@@ -370,36 +408,28 @@ static void ddr_perf_counter_local_config(struct ddr_pmu *pmu, int config,
}
}
-static void ddr_perf_monitor_config(struct ddr_pmu *pmu, int event,
- int counter, int axi_id, int axi_mask)
+static void imx93_ddr_perf_monitor_config(struct ddr_pmu *pmu, int event,
+ int counter, int axi_id, int axi_mask)
{
u32 pmcfg1, pmcfg2;
+ u32 mask[] = { MX93_PMCFG1_RD_TRANS_FILT_EN,
+ MX93_PMCFG1_WR_TRANS_FILT_EN,
+ MX93_PMCFG1_RD_BT_FILT_EN };
pmcfg1 = readl_relaxed(pmu->base + PMCFG1);
- if (counter == 2 && event == 73)
- pmcfg1 |= PMCFG1_RD_TRANS_FILT_EN;
- else if (counter == 2 && event != 73)
- pmcfg1 &= ~PMCFG1_RD_TRANS_FILT_EN;
-
- if (counter == 3 && event == 73)
- pmcfg1 |= PMCFG1_WR_TRANS_FILT_EN;
- else if (counter == 3 && event != 73)
- pmcfg1 &= ~PMCFG1_WR_TRANS_FILT_EN;
-
- if (counter == 4 && event == 73)
- pmcfg1 |= PMCFG1_RD_BT_FILT_EN;
- else if (counter == 4 && event != 73)
- pmcfg1 &= ~PMCFG1_RD_BT_FILT_EN;
+ if (counter >= 2 && counter <= 4)
+ pmcfg1 = event == 73 ? pmcfg1 | mask[counter - 2] :
+ pmcfg1 & ~mask[counter - 2];
- pmcfg1 &= ~FIELD_PREP(PMCFG1_ID_MASK, 0x3FFFF);
- pmcfg1 |= FIELD_PREP(PMCFG1_ID_MASK, axi_mask);
- writel(pmcfg1, pmu->base + PMCFG1);
+ pmcfg1 &= ~FIELD_PREP(MX93_PMCFG1_ID_MASK, 0x3FFFF);
+ pmcfg1 |= FIELD_PREP(MX93_PMCFG1_ID_MASK, axi_mask);
+ writel_relaxed(pmcfg1, pmu->base + PMCFG1);
pmcfg2 = readl_relaxed(pmu->base + PMCFG2);
- pmcfg2 &= ~FIELD_PREP(PMCFG2_ID, 0x3FFFF);
- pmcfg2 |= FIELD_PREP(PMCFG2_ID, axi_id);
- writel(pmcfg2, pmu->base + PMCFG2);
+ pmcfg2 &= ~FIELD_PREP(MX93_PMCFG2_ID, 0x3FFFF);
+ pmcfg2 |= FIELD_PREP(MX93_PMCFG2_ID, axi_id);
+ writel_relaxed(pmcfg2, pmu->base + PMCFG2);
}
static void ddr_perf_event_update(struct perf_event *event)
@@ -515,7 +545,7 @@ static int ddr_perf_event_add(struct perf_event *event, int flags)
ddr_perf_event_start(event, flags);
/* read trans, write trans, read beat */
- ddr_perf_monitor_config(pmu, event_id, counter, cfg1, cfg2);
+ imx93_ddr_perf_monitor_config(pmu, event_id, counter, cfg1, cfg2);
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-07 14:00:46 +0100