Re: [PATCH i-g-t v8 4/6] tests/kms_flip: limit number of outputs wrt suspend

["Thasleem, Mohammed" <mohammed.thasleem@intel.com>]

On 09-03-2026 02:55 pm, Michał Grzelak wrote:
> When running suspend subtests on single output, we can still hit the
> timeout by testing too much outputs. Default to testing 3 outputs. Add
> command-line parameter to run on all outputs.
>
> Signed-off-by: Michał Grzelak <michal.grzelak@intel.com>
> ---
>   tests/kms_flip.c | 21 ++++++++++++++++++---
>   1 file changed, 18 insertions(+), 3 deletions(-)
>
> diff --git a/tests/kms_flip.c b/tests/kms_flip.c
> index 917c5ed6f..ae38096aa 100755
> --- a/tests/kms_flip.c
> +++ b/tests/kms_flip.c
> @@ -264,12 +264,14 @@
>   #define RUN_PAIR		2
>   
>   #define PAIR_LIMIT 		3
> +#define CONN_LIMIT 		3
>   
>   #ifndef DRM_CAP_TIMESTAMP_MONOTONIC
>   #define DRM_CAP_TIMESTAMP_MONOTONIC 6
>   #endif
>   
>   static bool all_crtcs = false;
> +static bool all_conns = false;
>   static bool all_pairs = false;
>   
>   drmModeRes *resources;
> @@ -1822,6 +1824,7 @@ static void run_test(int duration, int flags)
>   {
>   	struct test_output o;
>   	int i, n, modes = 0;
> +	int conn_count = 0;
>   
>   	/* No tiling support in XE. */
>   	if (is_xe_device(drm_fd) && flags & TEST_FENCE_STRESS)
> @@ -1887,6 +1890,10 @@ static void run_test(int duration, int flags)
>   			if ((flags & TEST_SUSPEND) && !all_crtcs && n != 0)
>   				continue;
>   
> +			/* Limit number of displays run */
> +			if ((flags & TEST_SUSPEND) && !all_conns && conn_count >= CONN_LIMIT)
> +				continue;
> +
>   			memset(&o, 0, sizeof(o));
>   			o.count = 1;
>   			o._connector[0] = resources->connectors[i];
> @@ -1895,8 +1902,15 @@ static void run_test(int duration, int flags)
>   			o.depth = 24;
>   
>   			crtc_idx = n;
> -			run_test_on_crtc_set(&o, &crtc_idx, RUN_TEST,
> -					     resources->count_crtcs, duration);
> +
> +			connector_find_preferred_mode(o._connector[0], n, &o);
> +			if (o.mode_valid) {
> +				run_test_on_crtc_set(&o, &crtc_idx, RUN_TEST,
> +						     resources->count_crtcs, duration);
> +				conn_count++;
> +			} else {
> +				free_test_output(&o);
> +			}
>   		}
>   	}
>   
> @@ -2071,10 +2085,11 @@ static int opt_handler(int opt, int opt_index, void *data)
>   }

Here:  Below entry seems to missing...
static int opt_handler(int opt, int opt_index, void *data)

+        case 'c':
+        all_conns = true;
+         break;
            ...........
}

>   
>   const char *help_str =
> +	"  -c \tRun on all connectors. (By default suspend subtests will run on 3 connectors)\n"
>   	"  -e \tRun on all CRTCs. (By default subtests will run on two CRTCs)\n"
>   	"  -p \tRun on all output pairs. (By default 2x-* suspend subtests will run on 3 pairs)\n";
>   
> -int igt_main_args("ep", NULL, help_str, opt_handler, NULL)
> +int igt_main_args("cep", NULL, help_str, opt_handler, NULL)
>   {
>   	struct {
>   		int duration;