linux-kernel - Re: [PATCH 2/2] perf jevents: Add support for HiSilicon CPA PMU aliasing

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Message-ID: <e8360562-4e09-c2ed-9584-054a0b3d01bf@huawei.com>
Date:   Tue, 15 Feb 2022 09:23:20 +0800
From:   "liuqi (BA)" <liuqi115@...wei.com>
To:     Qi Liu <liuqi115@...wei.com>, <will@...nel.org>,
        <mark.rutland@....com>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <zhangshaokun@...ilicon.com>,
        Linuxarm <linuxarm@...wei.com>, <mingo@...hat.com>,
        <acme@...nel.org>, <linux-perf-users@...r.kernel.org>,
        <peterz@...radead.org>
Subject: Re: [PATCH 2/2] perf jevents: Add support for HiSilicon CPA PMU
 aliasing



+CC perf tool list and maintainers.

Qi

On 2022/2/14 19:42, Qi Liu wrote:
> Add support for HiSilicon CPA PMU aliasing.
> 
> The kernel driver is in drivers/perf/hisilicon/hisi_uncore_cpa_pmu.c
> 
> Signed-off-by: Qi Liu <liuqi115@...wei.com>
> ---
>   .../arm64/hisilicon/hip09/sys/uncore-cpa.json | 81 +++++++++++++++++++
>   tools/perf/pmu-events/jevents.c               |  1 +
>   2 files changed, 82 insertions(+)
>   create mode 100644 tools/perf/pmu-events/arch/arm64/hisilicon/hip09/sys/uncore-cpa.json
> 
> diff --git a/tools/perf/pmu-events/arch/arm64/hisilicon/hip09/sys/uncore-cpa.json b/tools/perf/pmu-events/arch/arm64/hisilicon/hip09/sys/uncore-cpa.json
> new file mode 100644
> index 000000000000..35c90da7f54b
> --- /dev/null
> +++ b/tools/perf/pmu-events/arch/arm64/hisilicon/hip09/sys/uncore-cpa.json
> @@ -0,0 +1,81 @@
> +[
> +	{
> +		"ConfigCode": "0x00",
> +		"EventName": "cpa_cycles",
> +		"BriefDescription": "count of CPA cycles",
> +		"Compat": "0x00000030",
> +		"Unit": "hisi_sicl,cpa"
> +	},
> +	{
> +		"ConfigCode": "0x61",
> +		"EventName": "p1_wr_dat",
> +		"BriefDescription": "Number of write ops transmitted by the P1 port",
> +		"Compat": "0x00000030",
> +		"Unit": "hisi_sicl,cpa"
> +	},
> +	{
> +		"ConfigCode": "0x62",
> +		"EventName": "p1_rd_dat",
> +		"BriefDescription": "Number of read ops transmitted by the P1 port",
> +		"Compat": "0x00000030",
> +		"Unit": "hisi_sicl,cpa"
> +	},
> +	{
> +		"ConfigCode": "0x3",
> +		"EventName": "p1_rd_dat_64b",
> +		"BriefDescription": "Number of read ops transmitted by the P1 port which size is 64 bytes",
> +		"Compat": "0x00000030",
> +		"Unit": "hisi_sicl,cpa"
> +	},
> +	{
> +		"ConfigCode": "0x4",
> +		"EventName": "p1_rd_dat_32b",
> +		"BriefDescription": "Number of read ops transmitted by the P1 port which size is 32 bytes",
> +		"Compat": "0x00000030",
> +		"Unit": "hisi_sicl,cpa"
> +	},
> +	{
> +		"ConfigCode": "0xE1",
> +		"EventName": "p0_wr_dat",
> +		"BriefDescription": "Number of write ops transmitted by the P0 port",
> +		"Compat": "0x00000030",
> +		"Unit": "hisi_sicl,cpa"
> +	},
> +	{
> +		"ConfigCode": "0xE2",
> +		"EventName": "p0_rd_dat",
> +		"BriefDescription": "Number of read ops transmitted by the P0 port",
> +		"Compat": "0x00000030",
> +		"Unit": "hisi_sicl,cpa"
> +	},
> +	{
> +		"ConfigCode": "0x83",
> +		"EventName": "p0_rd_dat_64b",
> +		"BriefDescription": "Number of read ops transmitted by the P0 port which size is 64 bytes",
> +		"Compat": "0x00000030",
> +		"Unit": "hisi_sicl,cpa"
> +	},
> +	{
> +		"ConfigCode": "0x84",
> +		"EventName": "p0_rd_dat_32b",
> +		"BriefDescription": "Number of read ops transmitted by the P0 port which size is 32 bytes",
> +		"Compat": "0x00000030",
> +		"Unit": "hisi_sicl,cpa"
> +	},
> +	{
> +		"MetricExpr": "(p1_wr_dat * 64 + p1_rd_dat_64b * 64 + p1_rd_dat_32b * 32) / cpa_cycles",
> +		"BriefDescription": "Average bandwidth of CPA Port 1",
> +		"MetricGroup": "CPA",
> +		"MetricName": "p1_avg_bw",
> +		"Compat": "0x00000030",
> +		"Unit": "hisi_sicl,cpa"
> +	},
> +	{
> +		"MetricExpr": "(p0_wr_dat * 64 + p0_rd_dat_64b * 64 + p0_rd_dat_32b * 32) / cpa_cycles",
> +		"BriefDescription": "Average bandwidth of CPA Port 0",
> +		"MetricGroup": "CPA",
> +		"MetricName": "p0_avg_bw",
> +		"Compat": "0x00000030",
> +		"Unit": "hisi_sicl,cpa"
> +	}
> +]
> diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
> index 1a57c3f81dd4..159d9eab6e79 100644
> --- a/tools/perf/pmu-events/jevents.c
> +++ b/tools/perf/pmu-events/jevents.c
> @@ -277,6 +277,7 @@ static struct map {
>   	{ "CPU-M-CF", "cpum_cf" },
>   	{ "CPU-M-SF", "cpum_sf" },
>   	{ "UPI LL", "uncore_upi" },
> +	{ "hisi_sicl,cpa", "hisi_sicl,cpa"},
>   	{ "hisi_sccl,ddrc", "hisi_sccl,ddrc" },
>   	{ "hisi_sccl,hha", "hisi_sccl,hha" },
>   	{ "hisi_sccl,l3c", "hisi_sccl,l3c" },
>