linux-kernel - [PATCH v3 20/25] perf mem: Print extended fields

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Message-Id: <20251112-perf_support_arm_spev1-3-v3-20-e63c9829f9d9@arm.com>
Date: Wed, 12 Nov 2025 18:24:46 +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 20/25] perf mem: Print extended fields

Print the extended operation types and affiliate info.

Signed-off-by: Leo Yan <leo.yan@....com>
---
 tools/perf/util/mem-events.c | 66 ++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 60 insertions(+), 6 deletions(-)

diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
index 80b3069427bc4bb5ffc3ab0856c01c76d9ba3ba6..c0aee982fb4f1a849c28a8bb01693855922832f6 100644
--- a/tools/perf/util/mem-events.c
+++ b/tools/perf/util/mem-events.c
@@ -413,11 +413,15 @@ static const char * const mem_hops[] = {
 
 static int perf_mem__op_scnprintf(char *out, size_t sz, const struct mem_info *mem_info)
 {
-	u64 op = PERF_MEM_LOCK_NA;
+	union perf_mem_data_src data_src;
+	u64 op = PERF_MEM_OP_NA, ext_op = 0;
 	int l;
 
-	if (mem_info)
-		op = mem_info__const_data_src(mem_info)->mem_op;
+	if (mem_info) {
+		data_src = *mem_info__const_data_src(mem_info);
+		op = data_src.mem_op;
+		ext_op = data_src.mem_op_ext;
+	}
 
 	if (op & PERF_MEM_OP_NA)
 		l = scnprintf(out, sz, "N/A");
@@ -432,6 +436,19 @@ static int perf_mem__op_scnprintf(char *out, size_t sz, const struct mem_info *m
 	else
 		l = scnprintf(out, sz, "No");
 
+	if (ext_op == PERF_MEM_EXT_OP_MTE_TAG)
+		l += scnprintf(out + l, sz - l, " MTE");
+	else if (ext_op == PERF_MEM_EXT_OP_NESTED_VIRT)
+		l += scnprintf(out + l, sz - l, " NV");
+	else if (ext_op == PERF_MEM_EXT_OP_MEMCPY)
+		l += scnprintf(out + l, sz - l, " MEMCPY");
+	else if (ext_op == PERF_MEM_EXT_OP_MEMSET)
+		l += scnprintf(out + l, sz - l, " MEMSET");
+	else if (ext_op == PERF_MEM_EXT_OP_SIMD)
+		l += scnprintf(out + l, sz - l, " SIMD");
+	else if (ext_op == PERF_MEM_EXT_OP_GCS)
+		l += scnprintf(out + l, sz - l, " GCS");
+
 	return l;
 }
 
@@ -582,9 +599,6 @@ int perf_mem__blk_scnprintf(char *out, size_t sz, const struct mem_info *mem_inf
 	size_t l = 0;
 	u64 mask = PERF_MEM_BLK_NA;
 
-	sz -= 1; /* -1 for null termination */
-	out[0] = '\0';
-
 	if (mem_info)
 		mask = mem_info__const_data_src(mem_info)->mem_blk;
 
@@ -600,6 +614,44 @@ int perf_mem__blk_scnprintf(char *out, size_t sz, const struct mem_info *mem_inf
 	return l;
 }
 
+static int perf_mem__aff_scnprintf(char *out, size_t sz,
+				   const struct mem_info *mem_info)
+{
+	union perf_mem_data_src data_src;
+	size_t l = 0;
+
+	sz -= 1; /* -1 for null termination */
+	out[0] = '\0';
+
+	if (!mem_info)
+		goto out;
+
+	data_src = *mem_info__const_data_src(mem_info);
+
+	if (data_src.mem_dp)
+		l += scnprintf(out + l, sz - l, " DP");
+	if (data_src.mem_fp)
+		l += scnprintf(out + l, sz - l, " FP");
+	if (data_src.mem_pred)
+		l += scnprintf(out + l, sz - l, " PRED");
+	if (data_src.mem_atomic)
+		l += scnprintf(out + l, sz - l, " ATOMIC");
+	if (data_src.mem_excl)
+		l += scnprintf(out + l, sz - l, " EX");
+	if (data_src.mem_ar)
+		l += scnprintf(out + l, sz - l, " AR");
+	if (data_src.mem_sg)
+		l += scnprintf(out + l, sz - l, " SG");
+	if (data_src.mem_cond)
+		l += scnprintf(out + l, sz - l, " COND");
+
+out:
+	if (!l)
+		l += scnprintf(out + l, sz - l, " N/A");
+
+	return l;
+}
+
 int perf_script__meminfo_scnprintf(char *out, size_t sz, const struct mem_info *mem_info)
 {
 	int i = 0;
@@ -616,6 +668,8 @@ int perf_script__meminfo_scnprintf(char *out, size_t sz, const struct mem_info *
 	i += perf_mem__lck_scnprintf(out + i, sz - i, mem_info);
 	i += scnprintf(out + i, sz - i, "|BLK ");
 	i += perf_mem__blk_scnprintf(out + i, sz - i, mem_info);
+	i += scnprintf(out + i, sz - i, "|AFF");
+	i += perf_mem__aff_scnprintf(out + i, sz - i, mem_info);
 
 	return i;
 }

-- 
2.34.1