1 files changed, 116 insertions, 0 deletions
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/event_alternatives_tests_p9.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/event_alternatives_tests_p9.c
new file mode 100644
index 000000000000..f7dcf0e0447c
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/event_alternatives_tests_p9.c
@@ -0,0 +1,116 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include "../event.h"
+#include "../sampling_tests/misc.h"
+
+#define PM_RUN_CYC_ALT 0x200f4
+#define PM_INST_DISP 0x200f2
+#define PM_BR_2PATH 0x20036
+#define PM_LD_MISS_L1 0x3e054
+#define PM_RUN_INST_CMPL_ALT 0x400fa
+
+#define EventCode_1 0x200fa
+#define EventCode_2 0x200fc
+#define EventCode_3 0x300fc
+#define EventCode_4 0x400fc
+
+/*
+ * Check for event alternatives.
+ */
+
+static int event_alternatives_tests_p9(void)
+{
+	struct event event, leader;
+
+	/* Check for platform support for the test */
+	SKIP_IF(platform_check_for_tests());
+
+	/*
+	 * PVR check is used here since PMU specific data like
+	 * alternative events is handled by respective PMU driver
+	 * code and using PVR will work correctly for all cases
+	 * including generic compat mode.
+	 */
+	SKIP_IF(PVR_VER(mfspr(SPRN_PVR)) != POWER9);
+
+	/* Skip for generic compat PMU */
+	SKIP_IF(check_for_generic_compat_pmu());
+
+	/* Init the event for PM_RUN_CYC_ALT */
+	event_init(&leader, PM_RUN_CYC_ALT);
+	FAIL_IF(event_open(&leader));
+
+	event_init(&event, EventCode_1);
+
+	/*
+	 * Expected to pass since PM_RUN_CYC_ALT in PMC2 has alternative event
+	 * 0x600f4. So it can go in with EventCode_1 which is using PMC2
+	 */
+	FAIL_IF(event_open_with_group(&event, leader.fd));
+
+	event_close(&leader);
+	event_close(&event);
+
+	event_init(&leader, PM_INST_DISP);
+	FAIL_IF(event_open(&leader));
+
+	event_init(&event, EventCode_2);
+	/*
+	 * Expected to pass since PM_INST_DISP in PMC2 has alternative event
+	 * 0x300f2 in PMC3. So it can go in with EventCode_2 which is using PMC2
+	 */
+	FAIL_IF(event_open_with_group(&event, leader.fd));
+
+	event_close(&leader);
+	event_close(&event);
+
+	event_init(&leader, PM_BR_2PATH);
+	FAIL_IF(event_open(&leader));
+
+	event_init(&event, EventCode_2);
+	/*
+	 * Expected to pass since PM_BR_2PATH in PMC2 has alternative event
+	 * 0x40036 in PMC4. So it can go in with EventCode_2 which is using PMC2
+	 */
+	FAIL_IF(event_open_with_group(&event, leader.fd));
+
+	event_close(&leader);
+	event_close(&event);
+
+	event_init(&leader, PM_LD_MISS_L1);
+	FAIL_IF(event_open(&leader));
+
+	event_init(&event, EventCode_3);
+	/*
+	 * Expected to pass since PM_LD_MISS_L1 in PMC3 has alternative event
+	 * 0x400f0 in PMC4. So it can go in with EventCode_3 which is using PMC3
+	 */
+	FAIL_IF(event_open_with_group(&event, leader.fd));
+
+	event_close(&leader);
+	event_close(&event);
+
+	event_init(&leader, PM_RUN_INST_CMPL_ALT);
+	FAIL_IF(event_open(&leader));
+
+	event_init(&event, EventCode_4);
+	/*
+	 * Expected to pass since PM_RUN_INST_CMPL_ALT in PMC4 has alternative event
+	 * 0x500fa in PMC5. So it can go in with EventCode_4 which is using PMC4
+	 */
+	FAIL_IF(event_open_with_group(&event, leader.fd));
+
+	event_close(&leader);
+	event_close(&event);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(event_alternatives_tests_p9, "event_alternatives_tests_p9");
+}