diff options
| -rw-r--r-- | lib/igt_aux.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/lib/igt_aux.c b/lib/igt_aux.c index b32297ee5..01654f002 100644 --- a/lib/igt_aux.c +++ b/lib/igt_aux.c @@ -42,6 +42,7 @@ #include <stdlib.h> #include <unistd.h> #include <sys/wait.h> +#include <sys/time.h> #include <sys/types.h> #include <sys/syscall.h> #include <sys/utsname.h> @@ -502,21 +503,27 @@ enum igt_runtime_pm_status igt_get_runtime_pm_status(void) * Waits until for the driver to switch to into the desired runtime PM status, * with a 10 second timeout. * + * Some subtests call this function while the signal helper is active, so we + * can't assume each usleep() call will sleep for 100ms. + * * Returns: * True if the desired runtime PM status was attained, false if the operation * timed out. */ bool igt_wait_for_pm_status(enum igt_runtime_pm_status status) { - int i; - int hundred_ms = 100 * 1000, ten_s = 10 * 1000 * 1000; + struct timeval start, end, diff; - for (i = 0; i < ten_s; i += hundred_ms) { + igt_assert(gettimeofday(&start, NULL) == 0); + do { if (igt_get_runtime_pm_status() == status) return true; - usleep(hundred_ms); - } + usleep(100 * 1000); + + igt_assert(gettimeofday(&end, NULL) == 0); + timersub(&end, &start, &diff); + } while (diff.tv_sec < 10); return false; } |