diff options
Diffstat (limited to 'kernel/tools/testing/selftests/powerpc/pmu/ebb/event_attributes_test.c')
-rw-r--r-- | kernel/tools/testing/selftests/powerpc/pmu/ebb/event_attributes_test.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/kernel/tools/testing/selftests/powerpc/pmu/ebb/event_attributes_test.c b/kernel/tools/testing/selftests/powerpc/pmu/ebb/event_attributes_test.c new file mode 100644 index 000000000..7e78153f0 --- /dev/null +++ b/kernel/tools/testing/selftests/powerpc/pmu/ebb/event_attributes_test.c @@ -0,0 +1,131 @@ +/* + * Copyright 2014, Michael Ellerman, IBM Corp. + * Licensed under GPLv2. + */ + +#include <stdio.h> +#include <stdlib.h> + +#include "ebb.h" + + +/* + * Test various attributes of the EBB event are enforced. + */ +int event_attributes(void) +{ + struct event event, leader; + + event_init(&event, 0x1001e); + event_leader_ebb_init(&event); + /* Expected to succeed */ + FAIL_IF(event_open(&event)); + event_close(&event); + + + event_init(&event, 0x001e); /* CYCLES - no PMC specified */ + event_leader_ebb_init(&event); + /* Expected to fail, no PMC specified */ + FAIL_IF(event_open(&event) == 0); + + + event_init(&event, 0x2001e); + event_leader_ebb_init(&event); + event.attr.exclusive = 0; + /* Expected to fail, not exclusive */ + FAIL_IF(event_open(&event) == 0); + + + event_init(&event, 0x3001e); + event_leader_ebb_init(&event); + event.attr.freq = 1; + /* Expected to fail, sets freq */ + FAIL_IF(event_open(&event) == 0); + + + event_init(&event, 0x4001e); + event_leader_ebb_init(&event); + event.attr.sample_period = 1; + /* Expected to fail, sets sample_period */ + FAIL_IF(event_open(&event) == 0); + + + event_init(&event, 0x1001e); + event_leader_ebb_init(&event); + event.attr.enable_on_exec = 1; + /* Expected to fail, sets enable_on_exec */ + FAIL_IF(event_open(&event) == 0); + + + event_init(&event, 0x1001e); + event_leader_ebb_init(&event); + event.attr.inherit = 1; + /* Expected to fail, sets inherit */ + FAIL_IF(event_open(&event) == 0); + + + event_init(&leader, 0x1001e); + event_leader_ebb_init(&leader); + FAIL_IF(event_open(&leader)); + + event_init(&event, 0x20002); + event_ebb_init(&event); + + /* Expected to succeed */ + FAIL_IF(event_open_with_group(&event, leader.fd)); + event_close(&leader); + event_close(&event); + + + event_init(&leader, 0x1001e); + event_leader_ebb_init(&leader); + FAIL_IF(event_open(&leader)); + + event_init(&event, 0x20002); + + /* Expected to fail, event doesn't request EBB, leader does */ + FAIL_IF(event_open_with_group(&event, leader.fd) == 0); + event_close(&leader); + + + event_init(&leader, 0x1001e); + event_leader_ebb_init(&leader); + /* Clear the EBB flag */ + leader.attr.config &= ~(1ull << 63); + + FAIL_IF(event_open(&leader)); + + event_init(&event, 0x20002); + event_ebb_init(&event); + + /* Expected to fail, leader doesn't request EBB */ + FAIL_IF(event_open_with_group(&event, leader.fd) == 0); + event_close(&leader); + + + event_init(&leader, 0x1001e); + event_leader_ebb_init(&leader); + leader.attr.exclusive = 0; + /* Expected to fail, leader isn't exclusive */ + FAIL_IF(event_open(&leader) == 0); + + + event_init(&leader, 0x1001e); + event_leader_ebb_init(&leader); + leader.attr.pinned = 0; + /* Expected to fail, leader isn't pinned */ + FAIL_IF(event_open(&leader) == 0); + + event_init(&event, 0x1001e); + event_leader_ebb_init(&event); + /* Expected to fail, not a task event */ + SKIP_IF(require_paranoia_below(1)); + FAIL_IF(event_open_with_cpu(&event, 0) == 0); + + return 0; +} + +int main(void) +{ + return test_harness(event_attributes, "event_attributes"); +} |