perf event: Add 'simd_flags' field to 'struct perf_sample'

Add new field to 'struct perf_sample' to store flags related to SIMD
ops.

It will be used to store SIMD information from SVE and NEON when
profiling using ARM SPE.

Signed-off-by: German Gomez <german.gomez@arm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anshuman.Khandual@arm.com
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20230320151509.1137462-2-james.clark@arm.com
Signed-off-by: James Clark <james.clark@arm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/sample.h b/tools/perf/util/sample.h
index 33b08e0..c92ad0f 100644 (file)
--- a/tools/perf/util/sample.h
+++ b/tools/perf/util/sample.h
@@ -66,6 +66,18 @@ struct aux_sample {
        void *data;
 };
 
+struct simd_flags {
+       u64     arch:1, /* architecture (isa) */
+               pred:2; /* predication */
+};
+
+/* simd architecture flags */
+#define SIMD_OP_FLAGS_ARCH_SVE         0x01    /* ARM SVE */
+
+/* simd predicate flags */
+#define SIMD_OP_FLAGS_PRED_PARTIAL     0x01    /* partial predicate */
+#define SIMD_OP_FLAGS_PRED_EMPTY       0x02    /* empty predicate */
+
 struct perf_sample {
        u64 ip;
        u32 pid, tid;
@@ -106,6 +118,7 @@ struct perf_sample {
        struct stack_dump user_stack;
        struct sample_read read;
        struct aux_sample aux_sample;
+       struct simd_flags simd_flags;
 };
 
 /*