linux-kernel - [PATCH 3/5] perf jevents: Add support for Hisi hip08 DDRC PMU aliasing

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Message-ID: <1560160772-210844-4-git-send-email-john.garry@huawei.com>
Date:   Mon, 10 Jun 2019 17:59:30 +0800
From:   John Garry <john.garry@...wei.com>
To:     <peterz@...radead.org>, <mingo@...hat.com>, <acme@...nel.org>,
        <alexander.shishkin@...ux.intel.com>, <jolsa@...hat.com>,
        <namhyung@...nel.org>, <tmricht@...ux.ibm.com>,
        <brueckner@...ux.ibm.com>, <kan.liang@...ux.intel.com>,
        <ben@...adent.org.uk>, <mathieu.poirier@...aro.org>,
        <mark.rutland@....com>, <will.deacon@....com>
CC:     <linux-kernel@...r.kernel.org>, <linuxarm@...wei.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <zhangshaokun@...ilicon.com>, <ak@...ux.intel.com>,
        John Garry <john.garry@...wei.com>
Subject: [PATCH 3/5] perf jevents: Add support for Hisi hip08 DDRC PMU aliasing

Add support for Hisi hip08 DDRC PMU event aliasing. We can now do
something like this:

$perf list

[snip]

uncore ddrc:
  uncore_hisi_sccl_ddrc.act_cmd
       [DDRC active commands. Unit: hisi_sccl,ddrc]
  uncore_hisi_sccl_ddrc.flux_rcmd
       [DDRC read commands. Unit: hisi_sccl,ddrc]
  uncore_hisi_sccl_ddrc.flux_wcmd
       [DDRC write commands. Unit: hisi_sccl,ddrc]
  uncore_hisi_sccl_ddrc.flux_wr
       [DDRC precharge commands. Unit: hisi_sccl,ddrc]
  uncore_hisi_sccl_ddrc.rnk_chg
       [DDRC rank commands. Unit: hisi_sccl,ddrc]
  uncore_hisi_sccl_ddrc.rw_chg
       [DDRC read and write changes. Unit: hisi_sccl,ddrc]

$sudo ./perf stat -e uncore_hisi_sccl_ddrc.flux_rcmd --no-merge sleep 1

 Performance counter stats for 'system wide':

                 0      uncore_hisi_sccl_ddrc.flux_rcmd [hisi_sccl1_ddrc0]
                 0      uncore_hisi_sccl_ddrc.flux_rcmd [hisi_sccl3_ddrc1]
                 0      uncore_hisi_sccl_ddrc.flux_rcmd [hisi_sccl1_ddrc3]
                 0      uncore_hisi_sccl_ddrc.flux_rcmd [hisi_sccl1_ddrc1]
                 0      uncore_hisi_sccl_ddrc.flux_rcmd [hisi_sccl3_ddrc2]
                 0      uncore_hisi_sccl_ddrc.flux_rcmd [hisi_sccl3_ddrc0]
            25,722      uncore_hisi_sccl_ddrc.flux_rcmd [hisi_sccl1_ddrc2]
                 0      uncore_hisi_sccl_ddrc.flux_rcmd [hisi_sccl3_ddrc3]

       1.001344685 seconds time elapsed

The kernel driver is in drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c

Signed-off-by: John Garry <john.garry@...wei.com>
---
 .../arm64/hisilicon/hip08/uncore-ddrc.json    | 44 +++++++++++++++++++
 tools/perf/pmu-events/jevents.c               |  1 +
 2 files changed, 45 insertions(+)
 create mode 100644 tools/perf/pmu-events/arch/arm64/hisilicon/hip08/uncore-ddrc.json

diff --git a/tools/perf/pmu-events/arch/arm64/hisilicon/hip08/uncore-ddrc.json b/tools/perf/pmu-events/arch/arm64/hisilicon/hip08/uncore-ddrc.json
new file mode 100644
index 000000000000..901b1fe65629
--- /dev/null
+++ b/tools/perf/pmu-events/arch/arm64/hisilicon/hip08/uncore-ddrc.json
@@ -0,0 +1,44 @@
+[
+   {
+	    "EventCode": "0x02",
+	    "EventName": "uncore_hisi_sccl_ddrc.flux_wcmd",
+	    "BriefDescription": "DDRC write commands",
+	    "PublicDescription": "DDRC write commands",
+	    "Unit": "hisi_sccl,ddrc",
+   },
+   {
+	    "EventCode": "0x03",
+	    "EventName": "uncore_hisi_sccl_ddrc.flux_rcmd",
+	    "BriefDescription": "DDRC read commands",
+	    "PublicDescription": "DDRC read commands",
+	    "Unit": "hisi_sccl,ddrc",
+   },
+   {
+	    "EventCode": "0x04",
+	    "EventName": "uncore_hisi_sccl_ddrc.flux_wr",
+	    "BriefDescription": "DDRC precharge commands",
+	    "PublicDescription": "DDRC precharge commands",
+	    "Unit": "hisi_sccl,ddrc",
+   },
+   {
+	    "EventCode": "0x05",
+	    "EventName": "uncore_hisi_sccl_ddrc.act_cmd",
+	    "BriefDescription": "DDRC active commands",
+	    "PublicDescription": "DDRC active commands",
+	    "Unit": "hisi_sccl,ddrc",
+   },
+   {
+	    "EventCode": "0x06",
+	    "EventName": "uncore_hisi_sccl_ddrc.rnk_chg",
+	    "BriefDescription": "DDRC rank commands",
+	    "PublicDescription": "DDRC rank commands",
+	    "Unit": "hisi_sccl,ddrc",
+   },
+   {
+	    "EventCode": "0x07",
+	    "EventName": "uncore_hisi_sccl_ddrc.rw_chg",
+	    "BriefDescription": "DDRC read and write changes",
+	    "PublicDescription": "DDRC read and write changes",
+	    "Unit": "hisi_sccl,ddrc",
+   },
+]
diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
index 58f77fd0f59f..cf9a60333554 100644
--- a/tools/perf/pmu-events/jevents.c
+++ b/tools/perf/pmu-events/jevents.c
@@ -236,6 +236,7 @@ static struct map {
 	{ "CPU-M-CF", "cpum_cf" },
 	{ "CPU-M-SF", "cpum_sf" },
 	{ "UPI LL", "uncore_upi" },
+	{ "hisi_sccl,ddrc", "hisi_sccl,ddrc" },
 	{}
 };
 
-- 
2.17.1