linux-kernel - Re: [PATCH v3 00/25] perf arm

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Message-ID: <CAP-5=fXiiWRDPzONNNZQZc4QOBQoz=kRnJq77on5r4w9aDx-XA@mail.gmail.com>
Date: Thu, 13 Nov 2025 09:01:47 -0800
From: Ian Rogers <irogers@...gle.com>
To: Leo Yan <leo.yan@....com>
Cc: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, Jiri Olsa <jolsa@...nel.org>, 
	Adrian Hunter <adrian.hunter@...el.com>, James Clark <james.clark@...aro.org>, 
	Mark Rutland <mark.rutland@....com>, Arnaldo Carvalho de Melo <acme@...hat.com>, linux-perf-users@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 00/25] perf arm_spe: Extend operations

On Wed, Nov 12, 2025 at 10:24 AM Leo Yan <leo.yan@....com> wrote:
>
> This series enhances tooling to support new operations:
>
>   - Support for MTE tag since Arm SPE v1.3;
>   - Support for Advanced SIMD extension and SVE operations;
>   - Support memcpy, memset and GCS operations;
>   - Support extended operations for atomic, Acquire/Release and
>     Exclusive instructions.
>   - Enhance the data source for associated info, like floating-point,
>     conditional, data processing, etc.
>
> This series is divided into three parts:
>
>   Patches 01 ~ 06: Support raw dump for new operations;
>   Patches 07 ~ 17: Export the operation info into records, so that the
>                    information can be later consumed by samples.
>   Patches 18 ~ 25: Set the operation info into sample's data source and
>                    SIMD flag, and updated the document.
>
> This patch series is tested on FVP for native parsing and x86_64 for
> cross parsing.
>
> Signed-off-by: Leo Yan <leo.yan@....com>

Reviewed-by: Ian Rogers <irogers@...gle.com>

Thanks!
Ian

> ---
> Changes in v3:
> - Rebased on the latest perf-tools-next branch.
> - Link to v2: https://lore.kernel.org/r/20251017-perf_support_arm_spev1-3-v2-0-2d41e4746e1b@arm.com
>
> Changes in v2:
> - Refined to use enums for 2nd operation types. (James)
> - Avoided adjustment bit positions for operations. (James)
> - Used enum for extended operation type in uapi header and defined
>   individual bit field for operation details in uaip header. (James)
> - Refined SIMD flag definitions. (James)
> - Extracted a separate commit for updating tool's header. (James/Arnaldo)
> - Minor improvement for printing memory events.
> - Rebased on the latest perf-tools-next branch.
> - Link to v1: https://lore.kernel.org/r/20250929-perf_support_arm_spev1-3-v1-0-1150b3c83857@arm.com
>
> ---
> Leo Yan (25):
>       perf arm_spe: Fix memset subclass in operation
>       perf arm_spe: Unify operation naming
>       perf arm_spe: Decode GCS operation
>       perf arm_spe: Rename SPE_OP_PKT_IS_OTHER_SVE_OP macro
>       perf arm_spe: Decode ASE and FP fields in other operation
>       perf arm_spe: Decode SME data processing packet
>       perf arm_spe: Remove unused operation types
>       perf arm_spe: Consolidate operation types
>       perf arm_spe: Introduce data processing macro for SVE operations
>       perf arm_spe: Report register access in record
>       perf arm_spe: Report MTE allocation tag in record
>       perf arm_spe: Report extended memory operations in records
>       perf arm_spe: Report associated info for SVE / SME operations
>       perf arm_spe: Report memset and memcpy in records
>       perf arm_spe: Report GCS in record
>       perf arm_spe: Expose SIMD information in other operations
>       perf arm_spe: Synthesize memory samples for SIMD operations
>       perf/uapi: Extend data source fields
>       tools/include: Sync uapi/linux/perf.h with the kernel sources
>       perf mem: Print extended fields
>       perf arm_spe: Set extended fields in data source
>       perf sort: Support sort ASE and SME
>       perf sort: Sort disabled and full predicated flags
>       perf report: Update document for SIMD flags
>       perf arm_spe: Improve SIMD flags setting
>
>  include/uapi/linux/perf_event.h                    | 32 ++++++++-
>  tools/include/uapi/linux/perf_event.h              | 32 ++++++++-
>  tools/perf/Documentation/perf-report.txt           |  5 +-
>  tools/perf/util/arm-spe-decoder/arm-spe-decoder.c  | 56 ++++++++++++++--
>  tools/perf/util/arm-spe-decoder/arm-spe-decoder.h  | 61 +++++++++--------
>  .../util/arm-spe-decoder/arm-spe-pkt-decoder.c     | 53 ++++++++-------
>  .../util/arm-spe-decoder/arm-spe-pkt-decoder.h     | 40 +++++++----
>  tools/perf/util/arm-spe.c                          | 77 +++++++++++++++++-----
>  tools/perf/util/mem-events.c                       | 66 +++++++++++++++++--
>  tools/perf/util/sample.h                           | 21 ++++--
>  tools/perf/util/sort.c                             | 21 ++++--
>  11 files changed, 359 insertions(+), 105 deletions(-)
> ---
> base-commit: da8fcfba0854dbe0b0eca465d35620c9cf4c89c1
> change-id: 20250820-perf_support_arm_spev1-3-b6efd6fc77b2
>
> Best regards,
> --
> Leo Yan <leo.yan@....com>
>