[PATCH i-g-t v3 4/6] tests/kms_properties: keep primary plane enabled for each CRTC

[Melissa Wen <mwen@igalia.com>]

For AMD, a primary plane must be active to keep CRTC active. So stop
reusing primary plane fb for overlays, give the latter its own fb.

Signed-off-by: Melissa Wen <mwen@igalia.com>

---

v2:
- detach different changes from a single commit (Chaitanya)
---
 tests/kms_properties.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/tests/kms_properties.c b/tests/kms_properties.c
index 292a04a2a..87614346a 100644
--- a/tests/kms_properties.c
+++ b/tests/kms_properties.c
@@ -237,7 +237,7 @@ static void run_colorop_property_tests(igt_display_t *display,
 				       igt_crtc_t *crtc, igt_output_t *output,
 				       bool atomic)
 {
-	struct igt_fb fb;
+	struct igt_fb fb, afb;
 	igt_plane_t *plane;
 	igt_colorop_t *colorop;
 	int i;
@@ -255,6 +255,16 @@ static void run_colorop_property_tests(igt_display_t *display,
 			 igt_crtc_name(crtc), plane->index,
 			 kmstest_plane_type_name(plane->type), output->name);
 
+		/* AMD requires primary plane enabled to keep CRTC enabled */
+		if (plane->type != DRM_PLANE_TYPE_PRIMARY) {
+			drmModeModeInfo *mode = igt_output_get_mode(output);
+
+			igt_create_pattern_fb(display->drm_fd, mode->hdisplay, mode->vdisplay,
+					      DRM_FORMAT_XRGB8888, DRM_FORMAT_MOD_LINEAR, &afb);
+
+			igt_plane_set_fb(plane, &afb);
+		}
+
 		/* iterate over all color pipelines on plane */
 		for (i = 0; i < plane->num_color_pipelines; ++i) {
 			/* iterate over all colorops in pipeline*/
-- 
2.53.0