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Message-ID: <20211106033213.GH477387@leoy-ThinkPad-X240s>
Date: Sat, 6 Nov 2021 11:32:13 +0800
From: Leo Yan <leo.yan@...aro.org>
To: German Gomez <german.gomez@....com>
Cc: linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
acme@...nel.org, James Clark <james.clark@....com>,
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@...hat.com>,
Namhyung Kim <namhyung@...nel.org>,
linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/3] perf arm-spe: Save context ID in record
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@...aro.org>
> Signed-off-by: James Clark <james.clark@....com>
> Signed-off-by: German Gomez <german.gomez@....com>
Reviewed-by: Leo Yan <leo.yan@...aro.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
>
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