[PATCH 4/7] drm/i915: Use the per-plane rotation property

[ville.syrjala at linux.intel.com]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

On certain platforms not all planes support the same set of
rotations/reflections, so let's use the per-plane property
for this.

This is already a problem on SKL when we use the legay cursor plane
as it only supports 0|180 whereas the universal planes support
0|90|180|270, and it will be a problem on CHV soon.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 51 +++++++++++++++++++-----------------
 drivers/gpu/drm/i915/intel_drv.h     |  4 +--
 drivers/gpu/drm/i915/intel_sprite.c  | 12 ++++++++-
 3 files changed, 40 insertions(+), 27 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 08b9f9a19df0..93ecb259c5ce 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -14217,6 +14217,7 @@ static struct drm_plane *intel_primary_plane_create(struct drm_device *dev,
 	struct intel_plane *primary = NULL;
 	struct intel_plane_state *state = NULL;
 	const uint32_t *intel_primary_formats;
+	unsigned int supported_rotations;
 	unsigned int num_formats;
 	int ret;
 
@@ -14289,8 +14290,19 @@ static struct drm_plane *intel_primary_plane_create(struct drm_device *dev,
 	if (ret)
 		goto fail;
 
+	if (INTEL_INFO(dev)->gen >= 9) {
+		supported_rotations =
+			BIT(DRM_ROTATE_0) | BIT(DRM_ROTATE_90) |
+			BIT(DRM_ROTATE_180) | BIT(DRM_ROTATE_270);
+	} else if (INTEL_INFO(dev)->gen >= 4) {
+		supported_rotations =
+			BIT(DRM_ROTATE_0) | BIT(DRM_ROTATE_180);
+	} else {
+		supported_rotations = BIT(DRM_ROTATE_0);
+	}
+
 	if (INTEL_INFO(dev)->gen >= 4)
-		intel_create_rotation_property(dev, primary);
+		intel_create_rotation_property(primary, supported_rotations);
 
 	drm_plane_helper_add(&primary->base, &intel_plane_helper_funcs);
 
@@ -14303,22 +14315,20 @@ fail:
 	return NULL;
 }
 
-void intel_create_rotation_property(struct drm_device *dev, struct intel_plane *plane)
+void intel_create_rotation_property(struct intel_plane *plane,
+				    unsigned int supported_rotations)
 {
-	if (!dev->mode_config.rotation_property) {
-		unsigned long flags = BIT(DRM_ROTATE_0) |
-			BIT(DRM_ROTATE_180);
+	struct drm_device *dev = plane->base.dev;
 
-		if (INTEL_INFO(dev)->gen >= 9)
-			flags |= BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270);
+	if (!plane->base.rotation_property)
+		plane->base.rotation_property =
+			drm_mode_create_rotation_property(dev,
+							  supported_rotations);
 
-		dev->mode_config.rotation_property =
-			drm_mode_create_rotation_property(dev, flags);
-	}
-	if (dev->mode_config.rotation_property)
+	if (plane->base.rotation_property)
 		drm_object_attach_property(&plane->base.base,
-				dev->mode_config.rotation_property,
-				plane->base.state->rotation);
+					   plane->base.rotation_property,
+					   plane->base.state->rotation);
 }
 
 static int
@@ -14449,17 +14459,10 @@ static struct drm_plane *intel_cursor_plane_create(struct drm_device *dev,
 	if (ret)
 		goto fail;
 
-	if (INTEL_INFO(dev)->gen >= 4) {
-		if (!dev->mode_config.rotation_property)
-			dev->mode_config.rotation_property =
-				drm_mode_create_rotation_property(dev,
-							BIT(DRM_ROTATE_0) |
-							BIT(DRM_ROTATE_180));
-		if (dev->mode_config.rotation_property)
-			drm_object_attach_property(&cursor->base.base,
-				dev->mode_config.rotation_property,
-				state->base.rotation);
-	}
+	if (INTEL_INFO(dev)->gen >= 4)
+		intel_create_rotation_property(cursor,
+					       BIT(DRM_ROTATE_0) |
+					       BIT(DRM_ROTATE_180));
 
 	if (INTEL_INFO(dev)->gen >=9)
 		state->scaler_id = -1;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 907a72cfdad3..2715aec979fc 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1255,8 +1255,8 @@ int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state,
 unsigned int intel_tile_height(const struct drm_i915_private *dev_priv,
 			       uint64_t fb_modifier, unsigned int cpp);
 
-void intel_create_rotation_property(struct drm_device *dev,
-					struct intel_plane *plane);
+void intel_create_rotation_property(struct intel_plane *plane,
+				    unsigned int supported_rotations);
 
 void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv,
 				    enum pipe pipe);
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index cc6af1410d67..bc41c1bba04c 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -1046,6 +1046,7 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
 	struct intel_plane_state *state = NULL;
 	unsigned long possible_crtcs;
 	const uint32_t *plane_formats;
+	unsigned int supported_rotations;
 	int num_plane_formats;
 	int ret;
 
@@ -1121,6 +1122,15 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
 		goto fail;
 	}
 
+	if (INTEL_INFO(dev)->gen >= 9) {
+		supported_rotations =
+			BIT(DRM_ROTATE_0) | BIT(DRM_ROTATE_90) |
+			BIT(DRM_ROTATE_180) | BIT(DRM_ROTATE_270);
+	} else {
+		supported_rotations =
+			BIT(DRM_ROTATE_0) | BIT(DRM_ROTATE_180);
+	}
+
 	intel_plane->pipe = pipe;
 	intel_plane->plane = plane;
 	intel_plane->frontbuffer_bit = INTEL_FRONTBUFFER_SPRITE(pipe, plane);
@@ -1143,7 +1153,7 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
 	if (ret)
 		goto fail;
 
-	intel_create_rotation_property(dev, intel_plane);
+	intel_create_rotation_property(intel_plane, supported_rotations);
 
 	drm_plane_helper_add(&intel_plane->base, &intel_plane_helper_funcs);
 
-- 
2.7.4