diff options
Diffstat (limited to 'powerpc/pmu/ebb/ebb_vs_cpu_event_test.c')
-rw-r--r-- | powerpc/pmu/ebb/ebb_vs_cpu_event_test.c | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/powerpc/pmu/ebb/ebb_vs_cpu_event_test.c b/powerpc/pmu/ebb/ebb_vs_cpu_event_test.c deleted file mode 100644 index be4dd5a..0000000 --- a/powerpc/pmu/ebb/ebb_vs_cpu_event_test.c +++ /dev/null @@ -1,86 +0,0 @@ -/* - * Copyright 2014, Michael Ellerman, IBM Corp. - * Licensed under GPLv2. - */ - -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <stdbool.h> -#include <sys/types.h> -#include <sys/wait.h> -#include <unistd.h> - -#include "ebb.h" - - -/* - * Tests an EBB vs a cpu event - in that order. The EBB should force the cpu - * event off the PMU. - */ - -static int setup_cpu_event(struct event *event, int cpu) -{ - event_init_named(event, 0x400FA, "PM_RUN_INST_CMPL"); - - event->attr.exclude_kernel = 1; - event->attr.exclude_hv = 1; - event->attr.exclude_idle = 1; - - SKIP_IF(require_paranoia_below(1)); - FAIL_IF(event_open_with_cpu(event, cpu)); - FAIL_IF(event_enable(event)); - - return 0; -} - -int ebb_vs_cpu_event(void) -{ - union pipe read_pipe, write_pipe; - struct event event; - int cpu, rc; - pid_t pid; - - cpu = pick_online_cpu(); - FAIL_IF(cpu < 0); - FAIL_IF(bind_to_cpu(cpu)); - - FAIL_IF(pipe(read_pipe.fds) == -1); - FAIL_IF(pipe(write_pipe.fds) == -1); - - pid = fork(); - if (pid == 0) { - /* NB order of pipes looks reversed */ - exit(ebb_child(write_pipe, read_pipe)); - } - - /* Signal the child to install its EBB event and wait */ - FAIL_IF(sync_with_child(read_pipe, write_pipe)); - - /* Now try to install our CPU event */ - rc = setup_cpu_event(&event, cpu); - if (rc) { - kill_child_and_wait(pid); - return rc; - } - - /* Signal the child to run */ - FAIL_IF(sync_with_child(read_pipe, write_pipe)); - - /* .. and wait for it to complete */ - FAIL_IF(wait_for_child(pid)); - FAIL_IF(event_disable(&event)); - FAIL_IF(event_read(&event)); - - event_report(&event); - - /* The cpu event may have run, but we don't expect 100% */ - FAIL_IF(event.result.enabled >= event.result.running); - - return 0; -} - -int main(void) -{ - return test_harness(ebb_vs_cpu_event, "ebb_vs_cpu_event"); -} |