From 235f0da3274690f540aa53fccf77d433e344e4b8 Mon Sep 17 00:00:00 2001
From: Xu Yang <xu.yang_2@nxp.com>
Date: Tue, 24 Sep 2024 11:08:12 +0800
Subject: [PATCH] perf vendor events arm64: imx95: add
imx95_bandwidth_usage.lpddr4x metric
Except lpddr5, i.MX95 also support lpddr4x. This will add a metric for
lpddr4x.
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Cc: shawnguo@kernel.org
Cc: will@kernel.org
Cc: james.clark@linaro.org
Cc: mike.leach@linaro.org
Cc: imx@lists.linux.dev
Cc: john.g.garry@oracle.com
Cc: kernel@pengutronix.de
Cc: s.hauer@pengutronix.de
Link: https://lore.kernel.org/r/20240924030812.3211029-1-xu.yang_2@nxp.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
.../arch/arm64/freescale/imx95/sys/metrics.json | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/tools/perf/pmu-events/arch/arm64/freescale/imx95/sys/metrics.json b/tools/perf/pmu-events/arch/arm64/freescale/imx95/sys/metrics.json
index 126ce980f6f25..45a0d51dfb639 100644
--- a/tools/perf/pmu-events/arch/arm64/freescale/imx95/sys/metrics.json
+++ b/tools/perf/pmu-events/arch/arm64/freescale/imx95/sys/metrics.json
@@ -7,6 +7,14 @@
"Unit": "imx9_ddr",
"Compat": "imx95"
},
+ {
+ "BriefDescription": "bandwidth usage for lpddr4x evk board",
+ "MetricName": "imx95_bandwidth_usage.lpddr4x",
+ "MetricExpr": "(( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x000\\,axi_id\\=0x000@ + imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x000\\,axi_id\\=0x000@ ) * 32 / duration_time) / (4000 * 1000000 * 4)",
+ "ScaleUnit": "1e2%",
+ "Unit": "imx9_ddr",
+ "Compat": "imx95"
+ },
{
"BriefDescription": "bytes of all masters read from ddr",
"MetricName": "imx95_ddr_read.all",