[PATCH v14 0/3] Add perf support for HiSilicon PCIe Tune and Trace device

[Yicong Yang]

From: Yicong Yang <yangyicong@xxxxxxxxxxxxx>

This patchset adds the perf tool support for HiSilicon PCIe Tune and Trace
device [1]. The device driver makes use of perf AUX trace for tracing
TLP (Transaction Layer Packet) headers of PCIe. The trace can be started by
`perf record` and the traced data can be decoded by `perf report` with
this patchset. The detailed usage is documented in [1].

This is split from the v11 series as suggested to send driver part and
perf tool part separately. The changelog before v11 can be found at [2].

Since the driver has been accepted, wish to have perf support along with
the PTT driver to enable the full support.

[1] https://lore.kernel.org/lkml/20220816114414.4092-5-yangyicong@xxxxxxxxxx/
[2] https://lore.kernel.org/lkml/20220816114414.4092-1-yangyicong@xxxxxxxxxx/

Change since v13:
- Collect tags from John and do few cleanups. Thanks.
Link: https://lore.kernel.org/lkml/20220919090045.6778-1-yangyicong@xxxxxxxxxx/

Change since v12:
- Remove unused headers and some minor fixes, Per John. Thanks!
Link: https://lore.kernel.org/lkml/20220914075925.48549-1-yangyicong@xxxxxxxxxx/

Qi Liu (3):
  perf tool: arm: Refactor event list iteration in
    auxtrace_record__init()
  perf tool: Add support for HiSilicon PCIe Tune and Trace device driver
  perf tool: Add support for parsing HiSilicon PCIe Trace packet

 tools/perf/arch/arm/util/auxtrace.c           | 116 +++++++++--
 tools/perf/arch/arm/util/pmu.c                |   3 +
 tools/perf/arch/arm64/util/Build              |   2 +-
 tools/perf/arch/arm64/util/hisi-ptt.c         | 188 +++++++++++++++++
 tools/perf/util/Build                         |   2 +
 tools/perf/util/auxtrace.c                    |   4 +
 tools/perf/util/auxtrace.h                    |   1 +
 tools/perf/util/hisi-ptt-decoder/Build        |   1 +
 .../hisi-ptt-decoder/hisi-ptt-pkt-decoder.c   | 164 +++++++++++++++
 .../hisi-ptt-decoder/hisi-ptt-pkt-decoder.h   |  31 +++
 tools/perf/util/hisi-ptt.c                    | 192 ++++++++++++++++++
 tools/perf/util/hisi-ptt.h                    |  19 ++
 12 files changed, 703 insertions(+), 20 deletions(-)
 create mode 100644 tools/perf/arch/arm64/util/hisi-ptt.c
 create mode 100644 tools/perf/util/hisi-ptt-decoder/Build
 create mode 100644 tools/perf/util/hisi-ptt-decoder/hisi-ptt-pkt-decoder.c
 create mode 100644 tools/perf/util/hisi-ptt-decoder/hisi-ptt-pkt-decoder.h
 create mode 100644 tools/perf/util/hisi-ptt.c
 create mode 100644 tools/perf/util/hisi-ptt.h

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2.24.0