[PATCH v12 7/8] perf vendor events arm64:: Add i.MX93 DDR Performance Monitor metrics

Xu Yang
2024-05-29T08:06:17Z

Add JSON metrics for i.MX93 DDR Performance Monitor.

Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>

---
Changes in v7:
- new patch
Changes in v8:
- no changes
Changes in v9:
- add Rb tag
Changes in v10:
- no changes
Changes in v11:
- no changes
Changes in v12:
- no changes
---
.../arch/arm64/freescale/imx93/sys/ddrc.json | 9 +++++++
.../arm64/freescale/imx93/sys/metrics.json | 26 +++++++++++++++++++
2 files changed, 35 insertions(+)
create mode 100644 tools/perf/pmu-events/arch/arm64/freescale/imx93/sys/ddrc.json
create mode 100644 tools/perf/pmu-events/arch/arm64/freescale/imx93/sys/metrics.json

diff --git a/tools/perf/pmu-events/arch/arm64/freescale/imx93/sys/ddrc.json b/tools/perf/pmu-events/arch/arm64/freescale/imx93/sys/ddrc.json
new file mode 100644
index 000000000000..eeeae4d49fce
--- /dev/null
+++ b/tools/perf/pmu-events/arch/arm64/freescale/imx93/sys/ddrc.json
@@ -0,0 +1,9 @@
+[
+ {
+ "BriefDescription": "ddr cycles event",
+ "EventCode": "0x00",
+ "EventName": "imx93_ddr.cycles",
+ "Unit": "imx9_ddr",
+ "Compat": "imx93"
+ }
+]
diff --git a/tools/perf/pmu-events/arch/arm64/freescale/imx93/sys/metrics.json b/tools/perf/pmu-events/arch/arm64/freescale/imx93/sys/metrics.json
new file mode 100644
index 000000000000..4d2454ca1259
--- /dev/null
+++ b/tools/perf/pmu-events/arch/arm64/freescale/imx93/sys/metrics.json
@@ -0,0 +1,26 @@
+[
+ {
+ "BriefDescription": "bandwidth usage for lpddr4x evk board",
+ "MetricName": "imx93_bandwidth_usage.lpddr4x",
+ "MetricExpr": "(((( imx9_ddr0@ddrc_pm_0@ ) * 2 * 8 ) + (( imx9_ddr0@ddrc_pm_3@ + imx9_ddr0@ddrc_pm_5@ + imx9_ddr0@ddrc_pm_7@ + imx9_ddr0@ddrc_pm_9@ - imx9_ddr0@ddrc_pm_2@ - imx9_ddr0@ddrc_pm_4@ - imx9_ddr0@ddrc_pm_6@ - imx9_ddr0@ddrc_pm_8@ ) * 32 )) / duration_time) / (3733 * 1000000 * 2)",
+ "ScaleUnit": "1e2%",
+ "Unit": "imx9_ddr",
+ "Compat": "imx93"
+ },
+ {
+ "BriefDescription": "bytes all masters read from ddr",
+ "MetricName": "imx93_ddr_read.all",
+ "MetricExpr": "( imx9_ddr0@ddrc_pm_0@ ) * 2 * 8",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx93"
+ },
+ {
+ "BriefDescription": "bytes all masters write to ddr",
+ "MetricName": "imx93_ddr_write.all",
+ "MetricExpr": "( imx9_ddr0@ddrc_pm_3@ + imx9_ddr0@ddrc_pm_5@ + imx9_ddr0@ddrc_pm_7@ + imx9_ddr0@ddrc_pm_9@ - imx9_ddr0@ddrc_pm_2@ - imx9_ddr0@ddrc_pm_4@ - imx9_ddr0@ddrc_pm_6@ - imx9_ddr0@ddrc_pm_8@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx93"
+ }
+]