linux-kernel - Re: [PATCH 3/3] perf test: Add perf_event

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Date:   Sun, 24 Apr 2022 22:53:07 +0800
From:   Leo Yan <leo.yan@...aro.org>
To:     Timothy Hayes <timothy.hayes@....com>
Cc:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        acme@...nel.org, John Garry <john.garry@...wei.com>,
        Will Deacon <will@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, netdev@...r.kernel.org,
        bpf@...r.kernel.org
Subject: Re: [PATCH 3/3] perf test: Add perf_event_attr test for Arm SPE

On Thu, Apr 21, 2022 at 05:52:05PM +0100, Timothy Hayes wrote:
> Adds a perf_event_attr test for Arm SPE in which the presence of
> physical addresses are checked when SPE unit is run with pa_enable=1.
> 
> Signed-off-by: Timothy Hayes <timothy.hayes@....com>

Reviewed-by: Leo Yan <leo.yan@...aro.org>
Tested-by: Leo Yan <leo.yan@...aro.org>

> ---
>  tools/perf/tests/attr/README                         |  1 +
>  .../perf/tests/attr/test-record-spe-physical-address | 12 ++++++++++++
>  2 files changed, 13 insertions(+)
>  create mode 100644 tools/perf/tests/attr/test-record-spe-physical-address
> 
> diff --git a/tools/perf/tests/attr/README b/tools/perf/tests/attr/README
> index 454505d343fa..eb3f7d4bb324 100644
> --- a/tools/perf/tests/attr/README
> +++ b/tools/perf/tests/attr/README
> @@ -60,6 +60,7 @@ Following tests are defined (with perf commands):
>    perf record -R kill                           (test-record-raw)
>    perf record -c 2 -e arm_spe_0// -- kill       (test-record-spe-period)
>    perf record -e arm_spe_0/period=3/ -- kill    (test-record-spe-period-term)
> +  perf record -e arm_spe_0/pa_enable=1/ -- kill (test-record-spe-physical-address)
>    perf stat -e cycles kill                      (test-stat-basic)
>    perf stat kill                                (test-stat-default)
>    perf stat -d kill                             (test-stat-detailed-1)
> diff --git a/tools/perf/tests/attr/test-record-spe-physical-address b/tools/perf/tests/attr/test-record-spe-physical-address
> new file mode 100644
> index 000000000000..7ebcf5012ce3
> --- /dev/null
> +++ b/tools/perf/tests/attr/test-record-spe-physical-address
> @@ -0,0 +1,12 @@
> +[config]
> +command = record
> +args    = --no-bpf-event -e arm_spe_0/pa_enable=1/ -- kill >/dev/null 2>&1
> +ret     = 1
> +arch    = aarch64
> +
> +[event-10:base-record-spe]
> +# 622727 is the decimal of IP|TID|TIME|CPU|IDENTIFIER|DATA_SRC|PHYS_ADDR
> +sample_type=622727
> +
> +# dummy event
> +[event-1:base-record-spe]
> \ No newline at end of file
> -- 
> 2.25.1
>