[igt-dev] [PATCH i-g-t 1/2] tests/i915/kms_big_fb: move start of crc calculation past first commit

[Kahola, Mika]

> -----Original Message-----
> From: igt-dev <igt-dev-bounces at lists.freedesktop.org> On Behalf Of Juha-
> Pekka Heikkila
> Sent: Thursday, April 7, 2022 9:38 PM
> To: igt-dev at lists.freedesktop.org
> Subject: [igt-dev] [PATCH i-g-t 1/2] tests/i915/kms_big_fb: move start of crc
> calculation past first commit
> 
> First commit may cause modeset on two pipes which can on some machines
> take enough time to fill up crc buffer on one pipe causing crc buffer overflow
> messages. Moved crc calculation start past first commit to avoid these
> messages.
> 

Reviewed-by: Mika Kahola <mika.kahola at intel.com>

> Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila at gmail.com>
> ---
>  tests/i915/kms_big_fb.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tests/i915/kms_big_fb.c b/tests/i915/kms_big_fb.c index
> 8724d6069..b7bcc3401 100644
> --- a/tests/i915/kms_big_fb.c
> +++ b/tests/i915/kms_big_fb.c
> @@ -370,12 +370,12 @@ static bool test_plane(data_t *data)
>  		 * rendering pipeline introduces slight differences into
>  		 * the result if we try that, and so the crc will not match.
>  		 */
> -		igt_pipe_crc_start(data->pipe_crc);
>  		copy_pattern(data, small_fb, 0, 0, big_fb, x, y,
>  			     small_fb->width, small_fb->height);
> 
>  		igt_display_commit2(&data->display, data->display.is_atomic ?
>  				    COMMIT_ATOMIC : COMMIT_UNIVERSAL);
> +		igt_pipe_crc_start(data->pipe_crc);
>  		igt_pipe_crc_get_current(data->display.drm_fd, data-
> >pipe_crc, &small_crc);
> 
>  		igt_plane_set_fb(plane, big_fb);
> --
> 2.28.0