diff options
Diffstat (limited to 'tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_radix_scope_qual_test.c')
-rw-r--r-- | tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_radix_scope_qual_test.c | 56 |
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 000000000..9225618b8 --- /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"); +} |