linux-kernel - [PATCH v3 24/25] perf report: Update document for SIMD flags

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20251112-perf_support_arm_spev1-3-v3-24-e63c9829f9d9@arm.com>
Date: Wed, 12 Nov 2025 18:24:50 +0000
From: Leo Yan <leo.yan@....com>
To: 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>, 
 Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
 James Clark <james.clark@...aro.org>, Mark Rutland <mark.rutland@....com>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>, 
 linux-perf-users@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, Leo Yan <leo.yan@....com>
Subject: [PATCH v3 24/25] perf report: Update document for SIMD flags

Update SIMD architecture and predicate flags.

Signed-off-by: Leo Yan <leo.yan@....com>
---
 tools/perf/Documentation/perf-report.txt | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index acef3ff4178eff66e8f876ae16cdac7b1387f07b..f361081a65dbe9cead539c7cb81d6ed86eb0acc6 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -136,7 +136,10 @@ OPTIONS
 	- addr: (Full) virtual address of the sampled instruction
 	- retire_lat: On X86, this reports pipeline stall of this instruction compared
 	  to the previous instruction in cycles. And currently supported only on X86
-	- simd: Flags describing a SIMD operation. "e" for empty Arm SVE predicate. "p" for partial Arm SVE predicate
+	- simd: Flags describing a SIMD operation. The architecture type can be Arm's
+	  ASE (Advanced SIMD extension), SVE, SME. It provides an extra tag for
+	  predicate: "e" for empty predicate, "p" for partial predicate, "d" for
+	  predicate disabled, and "f" for full predicate.
 	- type: Data type of sample memory access.
 	- typeoff: Offset in the data type of sample memory access.
 	- symoff: Offset in the symbol.

-- 
2.34.1