[PATCH 3/5] drm/i915: Add basic immutable zpos properties for all planes

[Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx>]

From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

Add an immutable zpos property for all planes. The normal order
is (bottom to top): primary,sprite(s),cursor.

Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/i915/intel_display.c | 10 ++++++++--
 drivers/gpu/drm/i915/intel_sprite.c  |  5 ++++-
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 8d4c9e249c44..bc3de1b5bb89 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13447,7 +13447,7 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
 	unsigned int supported_rotations;
 	unsigned int num_formats;
 	const uint64_t *modifiers;
-	int ret;
+	int ret, zpos;
 
 	primary = kzalloc(sizeof(*primary), GFP_KERNEL);
 	if (!primary) {
@@ -13591,6 +13591,9 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
 						  DRM_COLOR_YCBCR_BT709,
 						  DRM_COLOR_YCBCR_LIMITED_RANGE);
 
+	zpos = 0;
+	drm_plane_create_zpos_immutable_property(&primary->base, zpos);
+
 	drm_plane_helper_add(&primary->base, &intel_plane_helper_funcs);
 
 	return primary;
@@ -13608,7 +13611,7 @@ intel_cursor_plane_create(struct drm_i915_private *dev_priv,
 {
 	struct intel_plane *cursor = NULL;
 	struct intel_plane_state *state = NULL;
-	int ret;
+	int ret, zpos;
 
 	cursor = kzalloc(sizeof(*cursor), GFP_KERNEL);
 	if (!cursor) {
@@ -13665,6 +13668,9 @@ intel_cursor_plane_create(struct drm_i915_private *dev_priv,
 						   DRM_MODE_ROTATE_0 |
 						   DRM_MODE_ROTATE_180);
 
+	zpos = INTEL_INFO(dev_priv)->num_sprites[pipe] + 1;
+	drm_plane_create_zpos_immutable_property(&cursor->base, zpos);
+
 	if (INTEL_GEN(dev_priv) >= 9)
 		state->scaler_id = -1;
 
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index f6be9b1b9c3a..a6f4524adff4 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -1421,7 +1421,7 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
 	const uint64_t *modifiers;
 	unsigned int supported_rotations;
 	int num_plane_formats;
-	int ret;
+	int ret, zpos;
 
 	intel_plane = kzalloc(sizeof(*intel_plane), GFP_KERNEL);
 	if (!intel_plane) {
@@ -1552,6 +1552,9 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
 					  DRM_COLOR_YCBCR_BT709,
 					  DRM_COLOR_YCBCR_LIMITED_RANGE);
 
+	zpos = plane + 1;
+	drm_plane_create_zpos_immutable_property(&intel_plane->base, zpos);
+
 	drm_plane_helper_add(&intel_plane->base, &intel_plane_helper_funcs);
 
 	return intel_plane;
-- 
2.16.1

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