[PATCH v13 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 used 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 perf tool part has no change since v11.
The whole changelog 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 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

-- 
2.24.0