linux-kernel - [PATCH RFC v3 08/12] perf vendor events: Add JSON metrics for imx8mm DDR Perf

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Message-ID: <1588852671-61996-9-git-send-email-john.garry@huawei.com>
Date:   Thu, 7 May 2020 19:57:47 +0800
From:   John Garry <john.garry@...wei.com>
To:     <peterz@...radead.org>, <mingo@...hat.com>, <acme@...nel.org>,
        <mark.rutland@....com>, <alexander.shishkin@...ux.intel.com>,
        <jolsa@...hat.com>, <namhyung@...nel.org>
CC:     <will@...nel.org>, <ak@...ux.intel.com>, <linuxarm@...wei.com>,
        <linux-kernel@...r.kernel.org>, <qiangqing.zhang@....com>,
        <irogers@...gle.com>, <robin.murphy@....com>,
        <zhangshaokun@...ilicon.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        John Garry <john.garry@...wei.com>
Subject: [PATCH RFC v3 08/12] perf vendor events: Add JSON metrics for imx8mm DDR Perf

From: Joakim Zhang <qiangqing.zhang@....com>

Add JSON metrics for imx8mm DDR Perf.

Signed-off-by: Joakim Zhang <qiangqing.zhang@....com>
Signed-off-by: John Garry <john.garry@...wei.com>
---
 .../arch/arm64/freescale/imx8mm/sys/ddrc.json      | 39 ++++++++++++++++++++++
 .../arch/arm64/freescale/imx8mm/sys/metrics.json   | 18 ++++++++++
 tools/perf/pmu-events/jevents.c                    |  1 +
 3 files changed, 58 insertions(+)
 create mode 100644 tools/perf/pmu-events/arch/arm64/freescale/imx8mm/sys/ddrc.json
 create mode 100644 tools/perf/pmu-events/arch/arm64/freescale/imx8mm/sys/metrics.json

diff --git a/tools/perf/pmu-events/arch/arm64/freescale/imx8mm/sys/ddrc.json b/tools/perf/pmu-events/arch/arm64/freescale/imx8mm/sys/ddrc.json
new file mode 100644
index 000000000000..8a3dae61a48f
--- /dev/null
+++ b/tools/perf/pmu-events/arch/arm64/freescale/imx8mm/sys/ddrc.json
@@ -0,0 +1,39 @@
+[
+   {
+           "BriefDescription": "ddr cycles event",
+           "EventCode": "0x00",
+           "EventName": "imx8mm_ddr.cycles",
+           "Unit": "imx8_ddr",
+           "Compat": "i.mx8mm"
+   },
+   {
+           "BriefDescription": "ddr read-cycles event",
+           "EventCode": "0x2a",
+           "EventName": "imx8mm_ddr.read_cycles",
+           "Unit": "imx8_ddr",
+           "Compat": "i.mx8mm"
+   },
+   {
+           "BriefDescription": "ddr write-cycles event",
+           "EventCode": "0x2b",
+           "EventName": "imx8mm_ddr.write_cycles",
+           "Unit": "imx8_ddr",
+           "Compat": "i.mx8mm"
+   },
+   {
+           "BriefDescription": "ddr read event",
+           "EventCode": "0x35",
+           "EventName": "imx8mm_ddr.read",
+           "Unit": "imx8_ddr",
+           "Compat": "i.mx8mm"
+   },
+   {
+           "BriefDescription": "ddr write event",
+           "EventCode": "0x38",
+           "EventName": "imx8mm_ddr.write",
+           "Unit": "imx8_ddr",
+           "Compat": "i.mx8mm"
+   }
+]
+
+
diff --git a/tools/perf/pmu-events/arch/arm64/freescale/imx8mm/sys/metrics.json b/tools/perf/pmu-events/arch/arm64/freescale/imx8mm/sys/metrics.json
new file mode 100644
index 000000000000..eb891ac896ad
--- /dev/null
+++ b/tools/perf/pmu-events/arch/arm64/freescale/imx8mm/sys/metrics.json
@@ -0,0 +1,18 @@
+[
+   {
+	    "BriefDescription": "bytes all masters read from ddr based on read-cycles event",
+	    "MetricName": "imx8mm_ddr_read.all",
+	    "MetricExpr": "imx8mm_ddr.read_cycles * 4 * 4",
+	    "ScaleUnit": "9.765625e-4KB",
+	    "Unit": "imx8_ddr",
+	    "Compat": "i.mx8mm"
+    },
+   {
+	    "BriefDescription": "bytes all masters write to ddr based on write-cycles event",
+	    "MetricName": "imx8mm_ddr_write.all",
+	    "MetricExpr": "imx8mm_ddr.write_cycles * 4 * 4",
+	    "ScaleUnit": "9.765625e-4KB",
+	    "Unit": "imx8_ddr",
+	    "Compat": "i.mx8mm"
+    }
+]
diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
index 76a84ec2ffc8..efdade0194af 100644
--- a/tools/perf/pmu-events/jevents.c
+++ b/tools/perf/pmu-events/jevents.c
@@ -257,6 +257,7 @@ static struct map {
 	{ "hisi_sccl,hha", "hisi_sccl,hha" },
 	{ "hisi_sccl,l3c", "hisi_sccl,l3c" },
 	/* it's not realistic to keep adding these, we need something more scalable ... */
+	{ "imx8_ddr", "imx8_ddr" },
 	{ "smmuv3_pmcg", "smmuv3_pmcg" },
 	{ "L3PMC", "amd_l3" },
 	{}
-- 
2.16.4