linux-kernel - [PATCH v2 4/6] perf vendor events arm64: Add Hisi hip08 L1 metrics

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Date:   Thu, 25 Mar 2021 18:33:16 +0800
From:   John Garry <john.garry@...wei.com>
To:     <will@...nel.org>, <mathieu.poirier@...aro.org>,
        <leo.yan@...aro.org>, <peterz@...radead.org>, <mingo@...hat.com>,
        <acme@...nel.org>, <mark.rutland@....com>,
        <alexander.shishkin@...ux.intel.com>, <jolsa@...hat.com>,
        <namhyung@...nel.org>, <irogers@...gle.com>
CC:     <linuxarm@...wei.com>, <kjain@...ux.ibm.com>,
        <kan.liang@...ux.intel.com>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <zhangshaokun@...ilicon.com>, <pc@...ibm.com>,
        John Garry <john.garry@...wei.com>
Subject: [PATCH v2 4/6] perf vendor events arm64: Add Hisi hip08 L1 metrics

Add L1 metrics. Formula is as consistent as possible with MAN pages
description for these metrics.

Signed-off-by: John Garry <john.garry@...wei.com>
---
 .../arch/arm64/hisilicon/hip08/metrics.json   | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 tools/perf/pmu-events/arch/arm64/hisilicon/hip08/metrics.json

diff --git a/tools/perf/pmu-events/arch/arm64/hisilicon/hip08/metrics.json b/tools/perf/pmu-events/arch/arm64/hisilicon/hip08/metrics.json
new file mode 100644
index 000000000000..dc5ff3051639
--- /dev/null
+++ b/tools/perf/pmu-events/arch/arm64/hisilicon/hip08/metrics.json
@@ -0,0 +1,30 @@
+[
+    {
+        "MetricExpr": "FETCH_BUBBLE / (4 * CPU_CYCLES)",
+        "PublicDescription": "Frontend bound L1 topdown metric",
+        "BriefDescription": "Frontend bound L1 topdown metric",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "frontend_bound"
+    },
+    {
+        "MetricExpr": "(INST_SPEC - INST_RETIRED) / (4 * CPU_CYCLES)",
+        "PublicDescription": "Bad Speculation L1 topdown metric",
+        "BriefDescription": "Bad Speculation L1 topdown metric",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "bad_speculation"
+    },
+    {
+        "MetricExpr": "INST_RETIRED / (CPU_CYCLES * 4)",
+        "PublicDescription": "Retiring L1 topdown metric",
+        "BriefDescription": "Retiring L1 topdown metric",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "retiring"
+    },
+    {
+        "MetricExpr": "1 - (frontend_bound + bad_speculation + retiring)",
+        "PublicDescription": "Backend Bound L1 topdown metric",
+        "BriefDescription": "Backend Bound L1 topdown metric",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "backend_bound"
+    },
+]
-- 
2.26.2