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| author | Leo Yan <leo.yan@arm.com> | 2026-04-10 10:37:01 +0300 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2026-04-10 19:52:06 +0300 |
| commit | 4e03d6494f9504f8af46ba68a2a8b6877c196789 (patch) | |
| tree | 1904ad6756a298eb8c42448264ef8a744e826d13 | |
| parent | 54940f15269e0a5f6249e8520f81c2b980111f42 (diff) | |
| download | linux-4e03d6494f9504f8af46ba68a2a8b6877c196789.tar.xz | |
perf arm_spe: Improve SIMD flags setting
Fill in ASE and SME operations for the SIMD arch field.
Also set the predicate flags for SVE and SME, but differences between
them: SME does not have a predicate flag, so the setting is based on
events. SVE provides a predicate flag to indicate whether the predicate
is disabled, which allows it to be distinguished into four cases: full
predicates, empty predicates, fully predicated, and disabled predicates.
After:
perf report -s +simd
...
0.06% 0.06% sve-test sve-test [.] setz [p] SVE
0.06% 0.06% sve-test [kernel.kallsyms] [k] do_raw_spin_lock
0.06% 0.06% sve-test sve-test [.] getz [p] SVE
0.06% 0.06% sve-test [kernel.kallsyms] [k] timekeeping_advance
0.06% 0.06% sve-test sve-test [.] getz [d] SVE
0.06% 0.06% sve-test [kernel.kallsyms] [k] update_load_avg
0.06% 0.06% sve-test sve-test [.] getz [e] SVE
0.05% 0.05% sve-test sve-test [.] setz [e] SVE
0.05% 0.05% sve-test [kernel.kallsyms] [k] update_curr
0.05% 0.05% sve-test sve-test [.] setz [d] SVE
0.05% 0.05% sve-test [kernel.kallsyms] [k] do_raw_spin_unlock
0.05% 0.05% sve-test [kernel.kallsyms] [k] timekeeping_update_from_shadow.constprop.0
0.05% 0.05% sve-test sve-test [.] getz [f] SVE
0.05% 0.05% sve-test sve-test [.] setz [f] SVE
Reviewed-by: James Clark <james.clark@linaro.org>
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
| -rw-r--r-- | tools/perf/util/arm-spe.c | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c index 70dd9bee47c7..e5835042acdf 100644 --- a/tools/perf/util/arm-spe.c +++ b/tools/perf/util/arm-spe.c @@ -353,12 +353,26 @@ static struct simd_flags arm_spe__synth_simd_flags(const struct arm_spe_record * if (record->op & ARM_SPE_OP_SVE) simd_flags.arch |= SIMD_OP_FLAGS_ARCH_SVE; - - if (record->type & ARM_SPE_SVE_PARTIAL_PRED) - simd_flags.pred |= SIMD_OP_FLAGS_PRED_PARTIAL; - - if (record->type & ARM_SPE_SVE_EMPTY_PRED) - simd_flags.pred |= SIMD_OP_FLAGS_PRED_EMPTY; + else if (record->op & ARM_SPE_OP_SME) + simd_flags.arch |= SIMD_OP_FLAGS_ARCH_SME; + else if (record->op & (ARM_SPE_OP_ASE | ARM_SPE_OP_SIMD_FP)) + simd_flags.arch |= SIMD_OP_FLAGS_ARCH_ASE; + + if (record->op & ARM_SPE_OP_SVE) { + if (!(record->op & ARM_SPE_OP_PRED)) + simd_flags.pred = SIMD_OP_FLAGS_PRED_DISABLED; + else if (record->type & ARM_SPE_SVE_PARTIAL_PRED) + simd_flags.pred = SIMD_OP_FLAGS_PRED_PARTIAL; + else if (record->type & ARM_SPE_SVE_EMPTY_PRED) + simd_flags.pred = SIMD_OP_FLAGS_PRED_EMPTY; + else + simd_flags.pred = SIMD_OP_FLAGS_PRED_FULL; + } else { + if (record->type & ARM_SPE_SVE_PARTIAL_PRED) + simd_flags.pred = SIMD_OP_FLAGS_PRED_PARTIAL; + else if (record->type & ARM_SPE_SVE_EMPTY_PRED) + simd_flags.pred = SIMD_OP_FLAGS_PRED_EMPTY; + } return simd_flags; } |