@@ -6,7 +6,8 @@ TEST_GEN_PROGS := mmcr0_exceptionbits_test mmcr0_cc56run_test mmcr0_pmccext_test
mmcr1_comb_test mmcr2_l2l3_test mmcr2_fcs_fch_test \
mmcr3_src_test mmcra_thresh_marked_sample_test mmcra_thresh_cmp_test \
mmcra_bhrb_ind_call_test mmcra_bhrb_any_test mmcra_bhrb_cond_test \
- mmcra_bhrb_disable_test bhrb_no_crash_wo_pmu_test intr_regs_no_crash_wo_pmu_test
+ mmcra_bhrb_disable_test bhrb_no_crash_wo_pmu_test intr_regs_no_crash_wo_pmu_test \
+ bhrb_filter_map_test
top_srcdir = ../../../../../..
include ../../../lib.mk
new file mode 100644
@@ -0,0 +1,115 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+/*
+ * A perf sampling test to check bhrb filter
+ * map. All the branch filters are not supported
+ * in powerpc. Supported filters in:
+ * power10: any, any_call, ind_call, cond
+ * power9: any, any_call
+ *
+ * Testcase checks event open for invalid bhrb filter
+ * types should fail and valid filter types should pass.
+ * Testcase does validity check for these branch
+ * sample types.
+ */
+
+/* Invalid types for powerpc */
+int invalid_bhrb_filter_map[] = {
+ PERF_SAMPLE_BRANCH_USER,
+ PERF_SAMPLE_BRANCH_KERNEL,
+ PERF_SAMPLE_BRANCH_HV,
+ PERF_SAMPLE_BRANCH_ANY_RETURN,
+ PERF_SAMPLE_BRANCH_ABORT_TX,
+ PERF_SAMPLE_BRANCH_IN_TX,
+ PERF_SAMPLE_BRANCH_NO_TX,
+ PERF_SAMPLE_BRANCH_CALL_STACK,
+ PERF_SAMPLE_BRANCH_IND_JUMP,
+ PERF_SAMPLE_BRANCH_CALL,
+ PERF_SAMPLE_BRANCH_NO_FLAGS,
+ PERF_SAMPLE_BRANCH_NO_CYCLES,
+ PERF_SAMPLE_BRANCH_TYPE_SAVE,
+};
+
+/* Valid bhrb filters in power9/power10 */
+int bhrb_filter_map_valid_common[] = {
+ PERF_SAMPLE_BRANCH_ANY,
+ PERF_SAMPLE_BRANCH_ANY_CALL,
+};
+
+/* Valid bhrb filters in power10 */
+int bhrb_filter_map_valid_p10[] = {
+ PERF_SAMPLE_BRANCH_IND_CALL,
+ PERF_SAMPLE_BRANCH_COND,
+};
+
+static int bhrb_filter_map_test(void)
+{
+ struct event event;
+ int i;
+
+ /* Check for platform support for the test */
+ SKIP_IF(platform_check_for_tests());
+
+ /*
+ * Skip for Generic compat PMU since
+ * bhrb filters is not supported
+ */
+ SKIP_IF(check_for_generic_compat_pmu());
+
+ /* Init the event for the sampling test */
+ event_init(&event, 0x1001e);
+
+ event.attr.sample_period = 1000;
+ event.attr.sample_type = PERF_SAMPLE_BRANCH_STACK;
+ event.attr.disabled = 1;
+
+ /* Invalid filter maps which are expected to fail in event_open */
+ for (i = 0; i < ARRAY_SIZE(invalid_bhrb_filter_map); i++) {
+ event.attr.branch_sample_type = invalid_bhrb_filter_map[i];
+ FAIL_IF(!event_open(&event));
+ }
+
+ /* valid filter maps for power9/power10 which are expected to pass in event_open */
+ for (i = 0; i < ARRAY_SIZE(bhrb_filter_map_valid_common); i++) {
+ event.attr.branch_sample_type = bhrb_filter_map_valid_common[i];
+ FAIL_IF(event_open(&event));
+ event_close(&event);
+ }
+
+ /*
+ * filter maps which are valid in power10 and invalid in power9.
+ * PVR check is used here since PMU specific data like bhrb filter
+ * alternative tests is handled by respective PMU driver code and
+ * using PVR will work correctly for all cases including generic
+ * compat mode.
+ */
+ if (PVR_VER(mfspr(SPRN_PVR)) == POWER10) {
+ for (i = 0; i < ARRAY_SIZE(bhrb_filter_map_valid_p10); i++) {
+ event.attr.branch_sample_type = bhrb_filter_map_valid_p10[i];
+ FAIL_IF(event_open(&event));
+ event_close(&event);
+ }
+ } else {
+ for (i = 0; i < ARRAY_SIZE(bhrb_filter_map_valid_p10); i++) {
+ event.attr.branch_sample_type = bhrb_filter_map_valid_p10[i];
+ FAIL_IF(!event_open(&event));
+ }
+ }
+
+ return 0;
+}
+
+int main(void)
+{
+ return test_harness(bhrb_filter_map_test, "bhrb_filter_map_test");
+}