diff options
Diffstat (limited to 'powerpc/pmu/ebb/task_event_vs_ebb_test.c')
-rw-r--r-- | powerpc/pmu/ebb/task_event_vs_ebb_test.c | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/powerpc/pmu/ebb/task_event_vs_ebb_test.c b/powerpc/pmu/ebb/task_event_vs_ebb_test.c deleted file mode 100644 index eba3219..0000000 --- a/powerpc/pmu/ebb/task_event_vs_ebb_test.c +++ /dev/null @@ -1,83 +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 a per-task event vs an EBB - in that order. The EBB should push the - * per-task event off the PMU. - */ - -static int setup_child_event(struct event *event, pid_t child_pid) -{ - event_init_named(event, 0x400FA, "PM_RUN_INST_CMPL"); - - event->attr.exclude_kernel = 1; - event->attr.exclude_hv = 1; - event->attr.exclude_idle = 1; - - FAIL_IF(event_open_with_pid(event, child_pid)); - FAIL_IF(event_enable(event)); - - return 0; -} - -int task_event_vs_ebb(void) -{ - union pipe read_pipe, write_pipe; - struct event event; - pid_t pid; - int rc; - - 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)); - } - - /* We setup the task event first */ - rc = setup_child_event(&event, pid); - if (rc) { - kill_child_and_wait(pid); - return rc; - } - - /* Signal the child to install its EBB event and wait */ - if (sync_with_child(read_pipe, write_pipe)) - /* If it fails, wait for it to exit */ - goto wait; - - /* Signal the child to run */ - FAIL_IF(sync_with_child(read_pipe, write_pipe)); - -wait: - /* The EBB event should push the task event off so the child should succeed */ - FAIL_IF(wait_for_child(pid)); - FAIL_IF(event_disable(&event)); - FAIL_IF(event_read(&event)); - - event_report(&event); - - /* The task event may have run, or not so we can't assert anything about it */ - - return 0; -} - -int main(void) -{ - return test_harness(task_event_vs_ebb, "task_event_vs_ebb"); -} |