[PATCH 1/4] drm/xe/display: Expose plane max width/height helpers to global scope

Enabling features like FBC on platforms may depend on a plane's
maximum supported resolutions or some other arbitrary constant
values because of hw restrictions. Currently the helpers that
report a plane's max width and height are private to skl_plane
/ skl_universal_plane. Change the scope to golbal so that
this can be queried from other areas as well.

Signed-off-by: Vinod Govindapillai <[email protected]>
---
 .../gpu/drm/i915/display/skl_universal_plane.c   | 16 ++++++++--------
 .../gpu/drm/i915/display/skl_universal_plane.h   |  9 +++++++++
 2 files changed, 17 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
index 164b7d61c9a3..77d33012bdde 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
@@ -1932,10 +1932,10 @@ static int intel_plane_min_height(struct intel_plane *plane,
 	return 1;
 }
 
-static int intel_plane_max_width(struct intel_plane *plane,
-				 const struct drm_framebuffer *fb,
-				 int color_plane,
-				 unsigned int rotation)
+int intel_plane_max_width(struct intel_plane *plane,
+			  const struct drm_framebuffer *fb,
+			  int color_plane,
+			  unsigned int rotation)
 {
 	if (plane->max_width)
 		return plane->max_width(fb, color_plane, rotation);
@@ -1943,10 +1943,10 @@ static int intel_plane_max_width(struct intel_plane *plane,
 		return INT_MAX;
 }
 
-static int intel_plane_max_height(struct intel_plane *plane,
-				  const struct drm_framebuffer *fb,
-				  int color_plane,
-				  unsigned int rotation)
+int intel_plane_max_height(struct intel_plane *plane,
+			   const struct drm_framebuffer *fb,
+			   int color_plane,
+			   unsigned int rotation)
 {
 	if (plane->max_height)
 		return plane->max_height(fb, color_plane, rotation);
diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.h b/drivers/gpu/drm/i915/display/skl_universal_plane.h
index 5e2451c21eeb..dcfbded773a1 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.h
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.h
@@ -8,6 +8,7 @@
 
 #include <linux/types.h>
 
+struct drm_framebuffer;
 struct intel_crtc;
 struct intel_display;
 struct intel_initial_plane_config;
@@ -42,5 +43,13 @@ bool icl_is_hdr_plane(struct intel_display *display, enum plane_id plane_id);
 
 u32 skl_plane_aux_dist(const struct intel_plane_state *plane_state,
 		       int color_plane);
+int intel_plane_max_width(struct intel_plane *plane,
+			  const struct drm_framebuffer *fb,
+			  int color_plane,
+			  unsigned int rotation);
+int intel_plane_max_height(struct intel_plane *plane,
+			  const struct drm_framebuffer *fb,
+			  int color_plane,
+			  unsigned int rotation);
 
 #endif
-- 
2.43.0