[igt-dev] [PATCH 3/3] tests/kms_plane_scaling: Skip testing unsupported fp16 features

[Kevin Strasser <kevin.strasser@intel.com>]

Disallow Yf tiling and Y-tiled 90/270 rotation for fp16 on Intel hardware.

rfc2:
- Move check into can_rotate (Maarten)
- Use igt_plane_has_format_mod (Maarten)

v1:
- Drop Y tile check (Ville)

Signed-off-by: Kevin Strasser <kevin.strasser@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 tests/kms_plane_scaling.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/tests/kms_plane_scaling.c b/tests/kms_plane_scaling.c
index 3364073..661af9a 100644
--- a/tests/kms_plane_scaling.c
+++ b/tests/kms_plane_scaling.c
@@ -174,12 +174,18 @@ static const igt_rotation_t rotations[] = {
 	IGT_ROTATION_270,
 };
 
-static bool can_rotate(data_t *d, unsigned format)
+static bool can_rotate(data_t *d, unsigned format, uint64_t tiling,
+		       igt_rotation_t rot)
 {
 	if (format == DRM_FORMAT_C8 ||
 	    (intel_gen(d->devid) < 11 && format == DRM_FORMAT_RGB565))
 		return false;
 
+	// Y-tiled 90/270 rotation isn't supported for fp16 on Intel
+	if (is_i915_device(d->drm_fd) && igt_format_is_fp16(format) &&
+	    (rot == IGT_ROTATION_90 || rot == IGT_ROTATION_270))
+		return false;
+
 	return true;
 }
 
@@ -200,8 +206,9 @@ static void test_scaler_with_rotation_pipe(data_t *d, enum pipe pipe,
 			igt_rotation_t rot = rotations[i];
 			for (int j = 0; j < plane->drm_plane->count_formats; j++) {
 				unsigned format = plane->drm_plane->formats[j];
+
 				if (igt_fb_supported_format(format) &&
-				    can_rotate(d, format))
+				    can_rotate(d, format, tiling, rot))
 					check_scaling_pipe_plane_rot(d, plane, format,
 								     tiling, pipe,
 								     output, rot);
@@ -234,6 +241,9 @@ static void test_scaler_with_pixel_format_pipe(data_t *d, enum pipe pipe, igt_ou
 			for (int j = 0; j < plane->drm_plane->count_formats; j++) {
 				uint32_t format = plane->drm_plane->formats[j];
 
+				if (!igt_plane_has_format_mod(plane, format, tiling))
+					continue;
+
 				if (igt_fb_supported_format(format))
 					check_scaling_pipe_plane_rot(d, plane,
 								     format, tiling,
-- 
2.7.4

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