diff options
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/res_spin_lock.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/res_spin_lock.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/res_spin_lock.c b/tools/testing/selftests/bpf/prog_tests/res_spin_lock.c index f0a8c828f8f1..7541f4966abc 100644 --- a/tools/testing/selftests/bpf/prog_tests/res_spin_lock.c +++ b/tools/testing/selftests/bpf/prog_tests/res_spin_lock.c @@ -3,6 +3,8 @@ #include <test_progs.h> #include <network_helpers.h> #include <sys/sysinfo.h> +#include <sys/syscall.h> +#include <linux/perf_event.h> #include "res_spin_lock.skel.h" #include "res_spin_lock_fail.skel.h" @@ -102,11 +104,29 @@ end: void serial_test_res_spin_lock_stress(void) { + struct perf_event_attr attr = { + .size = sizeof(attr), + .type = PERF_TYPE_HARDWARE, + .config = PERF_COUNT_HW_CPU_CYCLES, + }; + int pmu_fd; + if (libbpf_num_possible_cpus() < 3) { test__skip(); return; } + pmu_fd = syscall(__NR_perf_event_open, &attr, 0, -1, -1, 0); + if (pmu_fd < 0) { + if (errno == ENOENT || errno == EOPNOTSUPP) { + test__skip(); + return; + } + ASSERT_OK(-errno, "perf_event_open pmu probe"); + return; + } + close(pmu_fd); + ASSERT_OK(load_module("bpf_test_rqspinlock.ko", false), "load module AA"); sleep(5); unload_module("bpf_test_rqspinlock", false); |