[PATCH v12 7/8] perf vendor events arm64:: Add i.MX93 DDR Performance Monitor metrics
From: Xu Yang <xu.yang_2@nxp.com>
Date: 2024-05-29 08:05:22
Also in:
imx, linux-devicetree, linux-perf-users, lkml
Subsystem:
freescale imx ddr pmu driver, performance events subsystem, performance events tooling arm64, the rest · Maintainers:
Frank Li, Xu Yang, Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo, Namhyung Kim, Linus Torvalds
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" + } +]
--
2.34.1
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