[PATCH i-g-t 36/37] tests/kms_ccs: Skip testing on identical plane types

[Juha-Pekka Heikkila]

Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila at gmail.com>

On 3.7.2024 2.28, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> On icl+ each plane type (HDR,SDR UV,SDR Y) have identical
> capabilities, so only test one plane of each type. Makes the
> test quite a bit faster:
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
>   tests/intel/kms_ccs.c | 21 +++++++++++++++++++++
>   1 file changed, 21 insertions(+)
> 
> diff --git a/tests/intel/kms_ccs.c b/tests/intel/kms_ccs.c
> index 60d8dc132105..8d3932de093e 100644
> --- a/tests/intel/kms_ccs.c
> +++ b/tests/intel/kms_ccs.c
> @@ -977,6 +977,24 @@ static int test_ccs(data_t *data)
>   	return valid_tests;
>   }
>   
> +static bool skip_plane(data_t *data, igt_plane_t *plane)
> +{
> +	int index = plane->index;
> +
> +	if (intel_display_ver(intel_get_drm_devid(data->drm_fd)) < 11)
> +		return false;
> +
> +	/*
> +	 * Test 1 HDR plane, 1 SDR UV plane, 1 SDR Y plane.
> +	 *
> +	 * Kernel registers planes in the hardware Z order:
> +	 * 0,1,2 HDR planes
> +	 * 3,4 SDR UV planes
> +	 * 5,6 SDR Y planes
> +	 */
> +	return index != 0 && index != 3 && index != 5;
> +}
> +
>   static void test_output(data_t *data, const int testnum)
>   {
>   	uint16_t dev_id;
> @@ -1025,6 +1043,9 @@ static void test_output(data_t *data, const int testnum)
>   						igt_display_require_output_on_pipe(&data->display, data->pipe);
>   
>   						for_each_plane_on_pipe(&data->display, data->pipe, data->plane) {
> +							if (skip_plane(data, data->plane))
> +								continue;
> +
>   							for (int j = 0; j < ARRAY_SIZE(formats); j++) {
>   								data->format = formats[j];
>   								valid_tests += test_ccs(data);