[PATCH 1/3] drm/i915/xe3lpd: Increase resolution for plane to support 6k

[Suraj Kandpal]

DISPLAY_VER >= 30 onwards CRTC can now support 6k resolution.
Increase pipe and plane max width and height to reflect this
increase in resolution.

--v2
-Take care of the subsampling scenario sooner rather than later [Matt]

--v3
-Take care of the joined pipe limits too [Ankit/Matt]

--v4
-Leave the joiner limits check here as is and handle them later [Ville]

Signed-off-by: Arun R Murthy <arun.r.murthy at intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal at intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c     |  5 ++++-
 .../gpu/drm/i915/display/skl_universal_plane.c   | 16 +++++++++++++++-
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index ef1436146325..92e22bf53e76 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -8450,7 +8450,10 @@ intel_mode_valid_max_plane_size(struct drm_i915_private *dev_priv,
 	 * plane so let's not advertize modes that are
 	 * too big for that.
 	 */
-	if (DISPLAY_VER(dev_priv) >= 11) {
+	if (DISPLAY_VER(dev_priv) >= 30) {
+		plane_width_max = 6144 * num_joined_pipes;
+		plane_height_max = 4800;
+	} else if (DISPLAY_VER(dev_priv) >= 11) {
 		plane_width_max = 5120 * num_joined_pipes;
 		plane_height_max = 4320;
 	} else {
diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
index a0a7ed01415a..29e52af5f206 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
@@ -431,6 +431,16 @@ static int icl_plane_min_width(const struct drm_framebuffer *fb,
 	}
 }
 
+static int xe3_plane_max_width(const struct drm_framebuffer *fb,
+			       int color_plane,
+			       unsigned int rotation)
+{
+	if (intel_format_info_is_yuv_semiplanar(fb->format, fb->modifier))
+		return 4096;
+	else
+		return 6144;
+}
+
 static int icl_hdr_plane_max_width(const struct drm_framebuffer *fb,
 				   int color_plane,
 				   unsigned int rotation)
@@ -2584,7 +2594,11 @@ skl_universal_plane_create(struct drm_i915_private *dev_priv,
 
 	intel_fbc_add_plane(skl_plane_fbc(dev_priv, pipe, plane_id), plane);
 
-	if (DISPLAY_VER(dev_priv) >= 11) {
+	if (DISPLAY_VER(dev_priv) >= 30) {
+		plane->max_width = xe3_plane_max_width;
+		plane->max_height = icl_plane_max_height;
+		plane->min_cdclk = icl_plane_min_cdclk;
+	} else if (DISPLAY_VER(dev_priv) >= 11) {
 		plane->min_width = icl_plane_min_width;
 		if (icl_is_hdr_plane(dev_priv, plane_id))
 			plane->max_width = icl_hdr_plane_max_width;
-- 
2.34.1