From: Athira Rajeev Date: Wed, 21 Sep 2022 14:52:55 +0000 (+0530) Subject: selftests/powerpc: Update bhrb filter sampling test for multiple branch filters X-Git-Tag: v6.1-rc1~103^2~36 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=18213532de7156af689cb0511d2f95bcbe3c98a0;p=thirdparty%2Fkernel%2Flinux.git selftests/powerpc: Update bhrb filter sampling test for multiple branch filters For PERF_SAMPLE_BRANCH_STACK sample type, different branch_sample_type, ie branch filters are supported. The testcase "bhrb_filter_map_test" tests the valid and invalid filter maps in different powerpc platforms. Update this testcase to include scenario to cover multiple branch filters at sametime. Since powerpc doesn't support multiple filters at sametime, expect failure during perf_event_open. Reported-by: Disha Goel Signed-off-by: Athira Rajeev Reviewed-by: Kajol Jain Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220921145255.20972-3-atrajeev@linux.vnet.ibm.com --- diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/bhrb_filter_map_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/bhrb_filter_map_test.c index 8182647c63c87..3f43c315c6664 100644 --- a/tools/testing/selftests/powerpc/pmu/sampling_tests/bhrb_filter_map_test.c +++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/bhrb_filter_map_test.c @@ -96,6 +96,15 @@ static int bhrb_filter_map_test(void) } } + /* + * Combine filter maps which includes a valid branch filter and an invalid branch + * filter. Example: any ( PERF_SAMPLE_BRANCH_ANY) and any_call + * (PERF_SAMPLE_BRANCH_ANY_CALL). + * The perf_event_open should fail in this case. + */ + event.attr.branch_sample_type = PERF_SAMPLE_BRANCH_ANY | PERF_SAMPLE_BRANCH_ANY_CALL; + FAIL_IF(!event_open(&event)); + return 0; }