[PATCH i-g-t 2/4] lib/igt_kms: Add igt_is_(big|ultra)_joiner_supported_by_source()

[Swati Sharma <swati2.sharma@intel.com>]

Add func() returning true/false if platform supports big/ultra
joiner and use corresponding func() in related binaries.

Signed-off-by: Swati Sharma <swati2.sharma@intel.com>
---
 lib/igt_kms.c            | 41 ++++++++++++++++++++++++++++++++++++++++
 lib/igt_kms.h            |  2 ++
 tests/intel/kms_joiner.c |  8 +++-----
 3 files changed, 46 insertions(+), 5 deletions(-)

diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index 8ee8741d9..6640a6a58 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -7301,3 +7301,44 @@ int igt_backlight_write(int value, const char *fname, igt_backlight_context_t *c
 
 	return 0;
 }
+
+/**
+ * igt_is_bigjoiner_supported_by_source:
+ * @drm_fd: drm file descriptor
+ *
+ * Returns: True if bigjoiner is supported by platform, false otherwise
+ */
+bool igt_is_bigjoiner_supported_by_source(int drm_fd)
+{
+	int disp_ver;
+	disp_ver = intel_display_ver(intel_get_drm_devid(drm_fd));
+
+	if (disp_ver < 12) {
+		igt_info("Bigjoiner is not supported on D11 and older platforms\n");
+		return false;
+	}
+
+	return true;
+}
+
+/**
+ * igt_is_ultrajoiner_supported_by_source:
+ * @drm_fd: drm file descriptor
+ *
+ * Returns: True if ultrajoiner is supported by platform, false otherwise
+ */
+bool igt_is_ultrajoiner_supported_by_source(int drm_fd)
+{
+	bool is_dgfx;
+	int disp_ver;
+
+	is_dgfx = is_xe_device(drm_fd) ? xe_has_vram(drm_fd) : gem_has_lmem(drm_fd);
+	disp_ver = intel_display_ver(intel_get_drm_devid(drm_fd));
+
+	if ((is_dgfx && disp_ver == 14) || (disp_ver > 14)) {
+		igt_info("Ultrajoiner is supported on igfx with D14+ and on dgfx with D14\n");
+		return true;
+	}
+
+	return false;
+}
diff --git a/lib/igt_kms.h b/lib/igt_kms.h
index c4d76bdcb..e8a296c18 100644
--- a/lib/igt_kms.h
+++ b/lib/igt_kms.h
@@ -1257,6 +1257,8 @@ bool igt_has_force_joiner_debugfs(int drmfd, char *conn_name);
 bool is_joiner_mode(int drm_fd, igt_output_t *output);
 bool igt_check_force_joiner_status(int drmfd, char *connector_name);
 bool igt_check_bigjoiner_support(igt_display_t *display);
+bool igt_is_bigjoiner_supported_by_source(int drm_fd);
+bool igt_is_ultrajoiner_supported_by_source(int drm_fd);
 bool igt_parse_mode_string(const char *mode_string, drmModeModeInfo *mode);
 bool intel_pipe_output_combo_valid(igt_display_t *display);
 bool igt_check_output_is_dp_mst(igt_output_t *output);
diff --git a/tests/intel/kms_joiner.c b/tests/intel/kms_joiner.c
index 418ff26a6..2b72aa786 100644
--- a/tests/intel/kms_joiner.c
+++ b/tests/intel/kms_joiner.c
@@ -411,8 +411,8 @@ static void test_ultra_joiner(data_t *data, bool invalid_pipe, bool two_display,
 
 igt_main
 {
-	bool ultra_joiner_supported, is_dgfx;
-	int i, j, display_ver;
+	bool ultra_joiner_supported;
+	int i, j;
 	igt_output_t *output;
 	drmModeModeInfo mode;
 	data_t data;
@@ -434,9 +434,7 @@ igt_main
 		igt_require(data.display.is_atomic);
 		max_dotclock = igt_get_max_dotclock(data.drm_fd);
 
-		is_dgfx = is_xe_device(data.drm_fd) ? xe_has_vram(data.drm_fd) : gem_has_lmem(data.drm_fd);
-		display_ver = intel_display_ver(intel_get_drm_devid(data.drm_fd));
-		if ((is_dgfx && display_ver == 14) || (display_ver > 14))
+		if (igt_is_ultrajoiner_supported_by_source(data.drm_fd))
 			ultra_joiner_supported = true;
 
 		for_each_connected_output(&data.display, output) {
-- 
2.25.1