It seems that at least with GLK with MIPI/DSI display, the first collected CRC is bogus. To fix this, try to collect two CRC's instead of one.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101309 Signed-off-by: Mika Kahola <mika.kah...@intel.com> --- tests/kms_frontbuffer_tracking.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/tests/kms_frontbuffer_tracking.c b/tests/kms_frontbuffer_tracking.c index a068c8a..df7cc6e 100644 --- a/tests/kms_frontbuffer_tracking.c +++ b/tests/kms_frontbuffer_tracking.c @@ -1239,8 +1239,18 @@ static void print_crc(const char *str, struct both_crcs *crc) static void collect_crcs(struct both_crcs *crcs, bool mandatory_sink_crc) { - igt_pipe_crc_collect_crc(pipe_crc, &crcs->pipe); + int n; + igt_crc_t *crc = NULL; + + igt_pipe_crc_start(pipe_crc); + n = igt_pipe_crc_get_crcs(pipe_crc, 2, &crc); + igt_pipe_crc_stop(pipe_crc); + igt_assert(n > 0); + igt_assert_crc_equal(&crc[0], &crc[1]); + crcs->pipe = crc[0]; + get_sink_crc(&crcs->sink, mandatory_sink_crc); + free(crc); } static void init_blue_crc(enum pixel_format format, bool mandatory_sink_crc) -- 2.7.4 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
