From: Leo Yan <leo.yan@arm.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Ian Rogers <irogers@google.com>,
James Clark <james.clark@linaro.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>,
Adrian Hunter <adrian.hunter@intel.com>,
"Liang, Kan" <kan.liang@linux.intel.com>,
John Garry <john.g.garry@oracle.com>,
Will Deacon <will@kernel.org>, Mike Leach <mike.leach@linaro.org>,
Graham Woodward <graham.woodward@arm.com>,
Paschalis.Mpeis@arm.com, linux-perf-users@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Cc: Leo Yan <leo.yan@arm.com>
Subject: [PATCH v2 00/11] perf script: Refactor branch flags for Arm SPE
Date: Fri, 14 Feb 2025 11:19:25 +0000 [thread overview]
Message-ID: <20250214111936.15168-1-leo.yan@arm.com> (raw)
This patch series refactors branch flags for support Arm SPE. The patch
set is divided into two parts, the first part is for refactoring common
code and the second part is for enabling Arm SPE.
For refactoring branch flags, the sample flaghs are classified as branch
types and events. A program branch type can be conditional branch,
function call, return or expection taken. A branch event happens when
taking a branch. This series combines branch types and the associated
events to present a sample flag.
The second part is to enable Arm SPE's sample flags for expressing
branch types and events, and support branch stack.
Patches 01 - 03 are to refactor branch types and branch events.
Patches 04, 05 extend to support not-taken event.
Patches 06 - 09 enables branch flags in Arm SPE. This allows to print
out sample flags for samples.
Patch 10 supports branch stack for Arm SPE. Patch 11 is an enhancement
for PBT feature.
Changes from v1:
- For patch 05, changed to append the 'not_taken' bit in the branch_flags.
This can avoid altering bit layout and cause breakage.
- Added Ian's review tags.
Leo Yan (11):
perf script: Make printing flags reliable
perf script: Refactor sample_flags_to_name() function
perf script: Separate events from branch types
perf script: Add not taken event for branches
perf script: Add not taken event for branch stack
perf arm-spe: Extend branch operations
perf arm-spe: Decode transactional event
perf arm-spe: Fill branch operations and events to record
perf arm-spe: Set sample flags with supplement info
perf arm-spe: Add branch stack
perf arm-spe: Support previous branch target (PBT) address
tools/perf/builtin-script.c | 30 ++--
.../util/arm-spe-decoder/arm-spe-decoder.c | 23 ++-
.../util/arm-spe-decoder/arm-spe-decoder.h | 11 +-
.../arm-spe-decoder/arm-spe-pkt-decoder.c | 14 +-
.../arm-spe-decoder/arm-spe-pkt-decoder.h | 12 +-
tools/perf/util/arm-spe.c | 135 ++++++++++++++++++
tools/perf/util/branch.h | 3 +-
tools/perf/util/event.h | 12 +-
tools/perf/util/trace-event-scripting.c | 116 +++++++++++----
tools/perf/util/trace-event.h | 2 +
10 files changed, 307 insertions(+), 51 deletions(-)
--
2.34.1
next reply other threads:[~2025-02-14 11:19 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-14 11:19 Leo Yan [this message]
2025-02-14 11:19 ` [PATCH v2 01/11] perf script: Make printing flags reliable Leo Yan
2025-02-14 11:19 ` [PATCH v2 02/11] perf script: Refactor sample_flags_to_name() function Leo Yan
2025-02-14 11:19 ` [PATCH v2 03/11] perf script: Separate events from branch types Leo Yan
2025-02-14 11:19 ` [PATCH v2 04/11] perf script: Add not taken event for branches Leo Yan
2025-02-14 11:19 ` [PATCH v2 05/11] perf script: Add not taken event for branch stack Leo Yan
2025-02-14 11:19 ` [PATCH v2 06/11] perf arm-spe: Extend branch operations Leo Yan
2025-02-14 11:19 ` [PATCH v2 07/11] perf arm-spe: Decode transactional event Leo Yan
2025-02-14 11:19 ` [PATCH v2 08/11] perf arm-spe: Fill branch operations and events to record Leo Yan
2025-02-17 16:20 ` James Clark
2025-02-17 20:04 ` Leo Yan
2025-02-14 11:19 ` [PATCH v2 09/11] perf arm-spe: Set sample flags with supplement info Leo Yan
2025-02-14 11:19 ` [PATCH v2 10/11] perf arm-spe: Add branch stack Leo Yan
2025-02-14 11:19 ` [PATCH v2 11/11] perf arm-spe: Support previous branch target (PBT) address Leo Yan
2025-02-17 16:28 ` [PATCH v2 00/11] perf script: Refactor branch flags for Arm SPE James Clark
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