From: Leo Yan <leo.yan@linaro.org>
To: German Gomez <german.gomez@arm.com>
Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
acme@kernel.org, James Clark <james.clark@arm.com>,
John Garry <john.garry@huawei.com>, Will Deacon <will@kernel.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 2/3] perf arm-spe: Save context ID in record
Date: Sat, 6 Nov 2021 11:32:13 +0800 [thread overview]
Message-ID: <20211106033213.GH477387@leoy-ThinkPad-X240s> (raw)
In-Reply-To: <20211102180739.18049-3-german.gomez@arm.com>
On Tue, Nov 02, 2021 at 06:07:38PM +0000, German Gomez wrote:
> This patch is to save context ID in record, this will be used to set TID
> for samples.
>
> Signed-off-by: Leo Yan <leo.yan@linaro.org>
> Signed-off-by: James Clark <james.clark@arm.com>
> Signed-off-by: German Gomez <german.gomez@arm.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
> ---
> tools/perf/util/arm-spe-decoder/arm-spe-decoder.c | 2 ++
> tools/perf/util/arm-spe-decoder/arm-spe-decoder.h | 1 +
> 2 files changed, 3 insertions(+)
>
> diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
> index 32fe41835..1b58859d2 100644
> --- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
> +++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
> @@ -151,6 +151,7 @@ static int arm_spe_read_record(struct arm_spe_decoder *decoder)
> u64 payload, ip;
>
> memset(&decoder->record, 0x0, sizeof(decoder->record));
> + decoder->record.context_id = -1;
>
> while (1) {
> err = arm_spe_get_next_packet(decoder);
> @@ -180,6 +181,7 @@ static int arm_spe_read_record(struct arm_spe_decoder *decoder)
> case ARM_SPE_COUNTER:
> break;
> case ARM_SPE_CONTEXT:
> + decoder->record.context_id = payload;
> break;
> case ARM_SPE_OP_TYPE:
> if (idx == SPE_OP_PKT_HDR_CLASS_LD_ST_ATOMIC) {
> diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
> index 59bdb7309..46a8556a9 100644
> --- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
> +++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
> @@ -38,6 +38,7 @@ struct arm_spe_record {
> u64 timestamp;
> u64 virt_addr;
> u64 phys_addr;
> + u64 context_id;
> };
>
> struct arm_spe_insn;
> --
> 2.25.1
>
next prev parent reply other threads:[~2021-11-06 3:32 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-02 18:07 [PATCH 0/3] perf arm-spe: Track pid/tid for Arm SPE samples German Gomez
2021-11-02 18:07 ` [PATCH 1/3] perf arm-spe: Track task context switch for cpu-mode events German Gomez
2021-11-06 3:29 ` Leo Yan
2021-11-06 19:49 ` Arnaldo Carvalho de Melo
2021-11-08 11:32 ` German Gomez
2021-11-02 18:07 ` [PATCH 2/3] perf arm-spe: Save context ID in record German Gomez
2021-11-06 3:32 ` Leo Yan [this message]
2021-11-06 13:47 ` Leo Yan
2021-11-09 10:41 ` German Gomez
2021-11-02 18:07 ` [PATCH 3/3] perf arm-spe: Support hardware-based PID tracing German Gomez
2021-11-06 14:57 ` Leo Yan
2021-11-09 11:15 ` German Gomez
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