On Mon, 16 May 2022 20:52:21 +0800
Yicong Yang <yangyicong@xxxxxxxxxxxxx> wrote:
> From: Qi Liu <liuqi115@xxxxxxxxxx>
>
> Add support for using 'perf report --dump-raw-trace' to parse PTT packet.
>
> Example usage:
>
> Output will contain raw PTT data and its textual representation, such
> as:
>
> 0 0 0x5810 [0x30]: PERF_RECORD_AUXTRACE size: 0x400000 offset: 0
> ref: 0xa5d50c725 idx: 0 tid: -1 cpu: 0
> .
> . ... HISI PTT data: size 4194304 bytes
> . 00000000: 00 00 00 00 Prefix
> . 00000004: 08 20 00 60 Header DW0
> . 00000008: ff 02 00 01 Header DW1
> . 0000000c: 20 08 00 00 Header DW2
> . 00000010: 10 e7 44 ab Header DW3
> . 00000014: 2a a8 1e 01 Time
> . 00000020: 00 00 00 00 Prefix
> . 00000024: 01 00 00 60 Header DW0
> . 00000028: 0f 1e 00 01 Header DW1
> . 0000002c: 04 00 00 00 Header DW2
> . 00000030: 40 00 81 02 Header DW3
> . 00000034: ee 02 00 00 Time
> ....
>
> Signed-off-by: Qi Liu <liuqi115@xxxxxxxxxx>
> Signed-off-by: Yicong Yang <yangyicong@xxxxxxxxxxxxx>
>From point of view of a reviewer who doesn't know this code well, this
all looks sensible. One trivial comment inline.
Thanks,
Jonathan
> diff --git a/tools/perf/util/hisi-ptt.c b/tools/perf/util/hisi-ptt.c
> new file mode 100644
> index 000000000000..2afc1a663c2a
> --- /dev/null
> +
> +static void hisi_ptt_free(struct perf_session *session)
> +{
> + struct hisi_ptt *ptt = container_of(session->auxtrace, struct hisi_ptt,
> + auxtrace);
> +
> + session->auxtrace = NULL;
> + free(ptt);
> +}
> +
> +static bool hisi_ptt_evsel_is_auxtrace(struct perf_session *session,
> + struct evsel *evsel)
> +{
> + struct hisi_ptt *ptt = container_of(session->auxtrace, struct hisi_ptt, auxtrace);
Check for consistent wrapping of lines like this. This doesn't match the one just above.
