tests/kms_setmode: avoid 2 connectors on the same encoder

Don't try to set modes on two connectors that share the same encoder.
That will just fail.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68463
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>

diff --git a/tests/kms_setmode.c b/tests/kms_setmode.c
index 3d18fc7..e1c9c5a 100644 (file)
--- a/tests/kms_setmode.c
+++ b/tests/kms_setmode.c
@@ -275,6 +275,7 @@ static void setup_crtcs(drmModeRes *resources, struct connector_config *cconf,
        int crtc_count;
        bool config_valid;
        int i;
+       int encoder_usage_count[resources->count_encoders];
 
        i = 0;
        crtc_count = 0;
@@ -337,6 +338,20 @@ static void setup_crtcs(drmModeRes *resources, struct connector_config *cconf,
                crtc++;
        }
 
+       memset(encoder_usage_count, 0, sizeof(encoder_usage_count));
+       for (i = 0; i < connector_count; i++) {
+               drmModeConnector *connector = cconf[i].connector;
+               drmModeEncoder *encoder;
+
+               igt_assert(connector->count_encoders == 1);
+               encoder = drmModeGetEncoder(drm_fd, connector->encoders[0]);
+               encoder_usage_count[get_encoder_idx(resources, encoder)]++;
+               drmModeFreeEncoder(encoder);
+       }
+       for (i = 0; i < resources->count_encoders; i++)
+               if (encoder_usage_count[i] > 1)
+                       config_valid = false;
+
        *crtc_count_ret = crtc_count;
        *config_valid_ret = config_valid;
 }