1 files changed, 71 insertions, 0 deletions
diff --git a/tools/perf/arch/x86/tests/amd-ibs-via-core-pmu.c b/tools/perf/arch/x86/tests/amd-ibs-via-core-pmu.c
new file mode 100644
index 000000000000..2902798ca5c1
--- /dev/null
+++ b/tools/perf/arch/x86/tests/amd-ibs-via-core-pmu.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "arch-tests.h"
+#include "linux/perf_event.h"
+#include "tests/tests.h"
+#include "pmu.h"
+#include "pmus.h"
+#include "../perf-sys.h"
+#include "debug.h"
+
+#define NR_SUB_TESTS 5
+
+static struct sub_tests {
+	int type;
+	unsigned long config;
+	bool valid;
+} sub_tests[NR_SUB_TESTS] = {
+	{ PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES, true },
+	{ PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS, false },
+	{ PERF_TYPE_RAW, 0x076, true },
+	{ PERF_TYPE_RAW, 0x0C1, true },
+	{ PERF_TYPE_RAW, 0x012, false },
+};
+
+static int event_open(int type, unsigned long config)
+{
+	struct perf_event_attr attr;
+
+	memset(&attr, 0, sizeof(struct perf_event_attr));
+	attr.type = type;
+	attr.size = sizeof(struct perf_event_attr);
+	attr.config = config;
+	attr.disabled = 1;
+	attr.precise_ip = 1;
+	attr.sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID;
+	attr.sample_period = 100000;
+
+	return sys_perf_event_open(&attr, -1, 0, -1, 0);
+}
+
+int test__amd_ibs_via_core_pmu(struct test_suite *test __maybe_unused,
+			       int subtest __maybe_unused)
+{
+	struct perf_pmu *ibs_pmu;
+	int ret = TEST_OK;
+	int fd, i;
+
+	if (list_empty(&pmus))
+		perf_pmu__scan(NULL);
+
+	ibs_pmu = perf_pmu__find("ibs_op");
+	if (!ibs_pmu)
+		return TEST_SKIP;
+
+	for (i = 0; i < NR_SUB_TESTS; i++) {
+		fd = event_open(sub_tests[i].type, sub_tests[i].config);
+		pr_debug("type: 0x%x, config: 0x%lx, fd: %d  -  ", sub_tests[i].type,
+			 sub_tests[i].config, fd);
+		if ((sub_tests[i].valid && fd == -1) ||
+		    (!sub_tests[i].valid && fd > 0)) {
+			pr_debug("Fail\n");
+			ret = TEST_FAIL;
+		} else {
+			pr_debug("Pass\n");
+		}
+
+		if (fd > 0)
+			close(fd);
+	}
+
+	return ret;
+}