[RFC PATCH 08/12] perf tools: riscv: making rvtrace PMU listable

[Zane Leung]

From: liangzhen <zhen.liang@xxxxxxxxxxxx>

This commit enhances the RISC-V performance tools by allowing the
rvtrace PMU to be listed and selected when auxiliary trace support
is enabled.

Signed-off-by: liangzhen <zhen.liang@xxxxxxxxxxxx>
---
 tools/perf/arch/riscv/util/Build |  2 ++
 tools/perf/arch/riscv/util/pmu.c | 20 ++++++++++++++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 tools/perf/arch/riscv/util/pmu.c

diff --git a/tools/perf/arch/riscv/util/Build b/tools/perf/arch/riscv/util/Build
index 2328fb9a30a3..748068a3a5c5 100644
--- a/tools/perf/arch/riscv/util/Build
+++ b/tools/perf/arch/riscv/util/Build
@@ -1 +1,3 @@
 perf-util-y += header.o
+
+perf-util-y += pmu.o
diff --git a/tools/perf/arch/riscv/util/pmu.c b/tools/perf/arch/riscv/util/pmu.c
new file mode 100644
index 000000000000..71ad1c8884d0
--- /dev/null
+++ b/tools/perf/arch/riscv/util/pmu.c
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright(C) 2026 Spacemit Limited. All rights reserved.
+ */
+
+#include <string.h>
+#include <linux/perf_event.h>
+
+#include "../../../util/pmu.h"
+
+#define RVTRACE_PMU_NAME "rvtrace"
+
+void perf_pmu__arch_init(struct perf_pmu *pmu)
+{
+	if (!strcmp(pmu->name, RVTRACE_PMU_NAME)) {
+		pmu->auxtrace = true;
+		pmu->selectable = true;
+	}
+}
+
-- 
2.34.1