[PATCH i-g-t v1 1/2] tests/kms_plane_scaling: Skip unsupported scaling scenarios

[Naladala Ramanaidu <ramanaidu.naladala@intel.com>]

Skip unsupported downscale tests on Intel platforms, aligning
test coverage with hardware limitations and reducing CI noise.

Bspec: 50441

Signed-off-by: Naladala Ramanaidu <ramanaidu.naladala@intel.com>
---
 tests/kms_plane_scaling.c | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/tests/kms_plane_scaling.c b/tests/kms_plane_scaling.c
index ab619fb2b..60390fae8 100644
--- a/tests/kms_plane_scaling.c
+++ b/tests/kms_plane_scaling.c
@@ -533,6 +533,24 @@ const struct {
 	},
 };
 
+static bool is_intel_downscale_supported(data_t *data, const char * const name,
+					 const enum scaler_combo_test_type test_type)
+{
+	if ((intel_display_ver(data->devid) >= 14) &&
+	    (test_type == TEST_PLANES_DOWNSCALE))
+		return false;
+
+	if ((intel_display_ver(data->devid) >= 14) &&
+	    (test_type == TEST_PLANES_UPSCALE_DOWNSCALE) &&
+	    strstr(name, "planes-upscale"))
+		return false;
+
+	if (strstr(name, "downscale-factor-0-25"))
+		return false;
+
+	return true;
+}
+
 static int get_width(drmModeModeInfo *mode, double scaling_factor)
 {
 	if (scaling_factor == 0.0)
@@ -1373,6 +1391,11 @@ int igt_main_args("", long_opts, help_str, opt_handler, &data)
 		for (int index = 0; index < ARRAY_SIZE(scaler_with_pixel_format_tests); index++) {
 			igt_describe(scaler_with_pixel_format_tests[index].describe);
 			igt_subtest_with_dynamic(scaler_with_pixel_format_tests[index].name) {
+				if (is_intel_device(data.drm_fd) &&
+				    !is_intel_downscale_supported(&data,
+							scaler_with_pixel_format_tests[index].name,
+							0))
+					continue;
 				for_each_crtc(&data.display, crtc) {
 					igt_dynamic_f("pipe-%s", igt_crtc_name(crtc)) {
 						for_each_valid_output_on_crtc(&data.display,
@@ -1404,6 +1427,11 @@ int igt_main_args("", long_opts, help_str, opt_handler, &data)
 		for (int index = 0; index < ARRAY_SIZE(scaler_with_rotation_tests); index++) {
 			igt_describe(scaler_with_rotation_tests[index].describe);
 			igt_subtest_with_dynamic(scaler_with_rotation_tests[index].name) {
+				if (is_intel_device(data.drm_fd) &&
+				    !is_intel_downscale_supported(&data,
+							scaler_with_rotation_tests[index].name,
+							0))
+					continue;
 				for_each_crtc(&data.display, crtc) {
 					igt_dynamic_f("pipe-%s", igt_crtc_name(crtc)) {
 						for_each_valid_output_on_crtc(&data.display,
@@ -1435,6 +1463,11 @@ int igt_main_args("", long_opts, help_str, opt_handler, &data)
 		for (int index = 0; index < ARRAY_SIZE(scaler_with_modifiers_tests); index++) {
 			igt_describe(scaler_with_modifiers_tests[index].describe);
 			igt_subtest_with_dynamic(scaler_with_modifiers_tests[index].name) {
+				if (is_intel_device(data.drm_fd) &&
+				    !is_intel_downscale_supported(&data,
+							scaler_with_modifiers_tests[index].name,
+							0))
+					continue;
 				for_each_crtc(&data.display, crtc) {
 					igt_dynamic_f("pipe-%s", igt_crtc_name(crtc)) {
 						for_each_valid_output_on_crtc(&data.display,
@@ -1548,6 +1581,11 @@ int igt_main_args("", long_opts, help_str, opt_handler, &data)
 		for (int index = 0; index < ARRAY_SIZE(scaler_with_2_planes_tests); index++) {
 			igt_describe(scaler_with_2_planes_tests[index].describe);
 			igt_subtest_with_dynamic(scaler_with_2_planes_tests[index].name) {
+				if (is_intel_device(data.drm_fd) &&
+				    !is_intel_downscale_supported(&data,
+							scaler_with_2_planes_tests[index].name,
+							scaler_with_2_planes_tests[index].test_type))
+					continue;
 				for_each_crtc(&data.display, crtc) {
 					igt_dynamic_f("pipe-%s", igt_crtc_name(crtc)) {
 						for_each_valid_output_on_crtc(&data.display,
-- 
2.43.0