[PATCH V1 2/4] perf vendor events: Add JSON metrics for imx8mn DDR Perf

[Joakim Zhang]

Add JSON metrics for imx8mn DDR Perf.

Signed-off-by: Joakim Zhang <qiangqing.zhang at nxp.com>
---
 .../arch/arm64/freescale/imx8mn/sys/ddrc.json | 37 +++++++++++++++++++
 .../arm64/freescale/imx8mn/sys/metrics.json   | 34 +++++++++++++++++
 2 files changed, 71 insertions(+)
 create mode 100644 tools/perf/pmu-events/arch/arm64/freescale/imx8mn/sys/ddrc.json
 create mode 100644 tools/perf/pmu-events/arch/arm64/freescale/imx8mn/sys/metrics.json

diff --git a/tools/perf/pmu-events/arch/arm64/freescale/imx8mn/sys/ddrc.json b/tools/perf/pmu-events/arch/arm64/freescale/imx8mn/sys/ddrc.json
new file mode 100644
index 000000000000..8352e73d6d35
--- /dev/null
+++ b/tools/perf/pmu-events/arch/arm64/freescale/imx8mn/sys/ddrc.json
@@ -0,0 +1,37 @@
+[
+   {
+           "BriefDescription": "ddr cycles event",
+           "EventCode": "0x00",
+           "EventName": "imx8mn_ddr.cycles",
+           "Unit": "imx8_ddr",
+           "Compat": "i.MX8MN"
+   },
+   {
+           "BriefDescription": "ddr read-cycles event",
+           "EventCode": "0x2a",
+           "EventName": "imx8mn_ddr.read_cycles",
+           "Unit": "imx8_ddr",
+           "Compat": "i.MX8MN"
+   },
+   {
+           "BriefDescription": "ddr write-cycles event",
+           "EventCode": "0x2b",
+           "EventName": "imx8mn_ddr.write_cycles",
+           "Unit": "imx8_ddr",
+           "Compat": "i.MX8MN"
+   },
+   {
+           "BriefDescription": "ddr read event",
+           "EventCode": "0x35",
+           "EventName": "imx8mn_ddr.read",
+           "Unit": "imx8_ddr",
+           "Compat": "i.MX8MN"
+   },
+   {
+           "BriefDescription": "ddr write event",
+           "EventCode": "0x38",
+           "EventName": "imx8mn_ddr.write",
+           "Unit": "imx8_ddr",
+           "Compat": "i.MX8MN"
+   }
+]
diff --git a/tools/perf/pmu-events/arch/arm64/freescale/imx8mn/sys/metrics.json b/tools/perf/pmu-events/arch/arm64/freescale/imx8mn/sys/metrics.json
new file mode 100644
index 000000000000..f71f6b0f3822
--- /dev/null
+++ b/tools/perf/pmu-events/arch/arm64/freescale/imx8mn/sys/metrics.json
@@ -0,0 +1,34 @@
+[
+   {
+	    "BriefDescription": "bandwidth usage for lpddr4 evk board",
+	    "MetricName": "imx8mn_bandwidth_usage.lpddr4",
+	    "MetricExpr": "(( imx8_ddr0 at read\\-cycles@ + imx8_ddr0 at write\\-cycles@ ) * 4 * 2 / duration_time) / (800 * 1000000 * 4 * 2)",
+	    "ScaleUnit": "1e2%",
+	    "Unit": "imx8_ddr",
+	    "Compat": "i.MX8MN"
+   },
+   {
+	    "BriefDescription": "bandwidth usage for ddr4 evk board",
+	    "MetricName": "imx8mn_bandwidth_usage.ddr4",
+	    "MetricExpr": "(( imx8_ddr0 at read\\-cycles@ + imx8_ddr0 at write\\-cycles@ ) * 4 * 2 / duration_time) / (600 * 1000000 * 4 * 2)",
+	    "ScaleUnit": "1e2%",
+	    "Unit": "imx8_ddr",
+	    "Compat": "i.MX8MN"
+   },
+   {
+	    "BriefDescription": "bytes all masters read from ddr based on read-cycles event",
+	    "MetricName": "imx8mn_ddr_read.all",
+	    "MetricExpr": "imx8mn_ddr.read_cycles * 4 * 4",
+	    "ScaleUnit": "9.765625e-4KB",
+	    "Unit": "imx8_ddr",
+	    "Compat": "i.MX8MN"
+   },
+   {
+	    "BriefDescription": "bytes all masters write to ddr based on write-cycles event",
+	    "MetricName": "imx8mn_ddr_write.all",
+	    "MetricExpr": "imx8mn_ddr.write_cycles * 4 * 4",
+	    "ScaleUnit": "9.765625e-4KB",
+	    "Unit": "imx8_ddr",
+	    "Compat": "i.MX8MN"
+   }
+]
-- 
2.17.1