diff options
| -rw-r--r-- | tests/kms_vblank.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/tests/kms_vblank.c b/tests/kms_vblank.c index dafadb58..79ff97b2 100644 --- a/tests/kms_vblank.c +++ b/tests/kms_vblank.c @@ -332,14 +332,21 @@ static int get_vblank(int fd, enum pipe pipe, unsigned flags) return vbl.reply.sequence; } +#define VBLANK_ERR 5 + static void vblank_ts_cont(data_t *data, int fd, int nchildren) { igt_display_t *display = &data->display; igt_output_t *output = data->output; int seq1, seq2; union drm_wait_vblank vbl; + struct timespec start, end; + int estimated_vblanks = 0; + int vrefresh = igt_output_get_mode(output)->vrefresh; + double time_elapsed; seq1 = get_vblank(fd, data->pipe, 0); + clock_gettime(CLOCK_MONOTONIC, &start); if (data->flags & DPMS) { igt_output_set_prop_value(output, IGT_CONNECTOR_DPMS, DRM_MODE_DPMS_OFF); @@ -377,11 +384,17 @@ static void vblank_ts_cont(data_t *data, int fd, int nchildren) } seq2 = get_vblank(fd, data->pipe, 0); + clock_gettime(CLOCK_MONOTONIC, &end); + + time_elapsed = igt_time_elapsed(&start, &end); + estimated_vblanks = (int)(time_elapsed * vrefresh); igt_debug("testing ts continuity: Current frame %u, old frame %u\n", seq2, seq1); - igt_assert_f(seq2 - seq1 >= 0, "unexpected vblank seq %u, should be >= %u\n", seq2, seq1); - igt_assert_f(seq2 - seq1 <= 150, "unexpected vblank seq %u, should be < %u\n", seq2, seq1 + 150); + igt_assert_f(seq2 - seq1 >= 0, "elapsed %f(%d vblanks) unexpected vblank seq %u, should be > %u\n", time_elapsed, + estimated_vblanks, seq2, seq1); + igt_assert_f(seq2 - seq1 <= estimated_vblanks + VBLANK_ERR, "elapsed %f(%d vblanks) unexpected vblank seq %u, should be <= %u\n", time_elapsed, + estimated_vblanks, seq2, seq1 + estimated_vblanks); } static void run_subtests_for_pipe(data_t *data) |