1 files changed, 56 insertions, 0 deletions
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_radix_scope_qual_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_radix_scope_qual_test.c
new file mode 100644
index 000000000000..9225618b846a
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_radix_scope_qual_test.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include "../event.h"
+#include "../sampling_tests/misc.h"
+
+/* PM_DATA_RADIX_PROCESS_L2_PTE_FROM_L2 */
+#define EventCode_1 0x14242
+/* PM_DATA_RADIX_PROCESS_L2_PTE_FROM_L3 */
+#define EventCode_2 0x24242
+
+/*
+ * Testcase for group constraint check for radix_scope_qual
+ * field which is used to program Monitor Mode Control
+ * egister (MMCR1)  bit 18.
+ * All events in the group should match radix_scope_qual,
+ * bits otherwise event_open for the group should fail.
+ */
+
+static int group_constraint_radix_scope_qual(void)
+{
+	struct event event, leader;
+
+	/*
+	 * Check for platform support for the test.
+	 * This test is aplicable on power10 only.
+	 */
+	SKIP_IF(platform_check_for_tests());
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
+
+	/* Init the events for the group contraint check for radix_scope_qual bits */
+	event_init(&leader, EventCode_1);
+	FAIL_IF(event_open(&leader));
+
+	event_init(&event, 0x200fc);
+
+	/* Expected to fail as sibling event doesn't request same radix_scope_qual bits as leader */
+	FAIL_IF(!event_open_with_group(&event, leader.fd));
+
+	event_init(&event, EventCode_2);
+	/* Expected to pass as sibling event request same radix_scope_qual bits as leader */
+	FAIL_IF(event_open_with_group(&event, leader.fd));
+
+	event_close(&leader);
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(group_constraint_radix_scope_qual,
+			    "group_constraint_radix_scope_qual");
+}