[PATCH 5/9] drm/i915: Reuse vlv_primary_min_alignment() for sprites as well

[Ville Syrjala]

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

Rename vlv_primary_min_alignment() to vlv_plane_min_alignment()
and use it to replace vlv_sprite_min_alignment() since the
behaviour is now identical when the plane init doesn't set up
any async flips stuff.

Technically VLV/CHV sprites do support async flips, so this
also makes us a bit more future proof if/when we extend async
flip support to more than one plane.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/i9xx_plane.c   |  8 ++++----
 drivers/gpu/drm/i915/display/i9xx_plane.h   |  4 ++++
 drivers/gpu/drm/i915/display/intel_sprite.c | 17 +----------------
 3 files changed, 9 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/i9xx_plane.c b/drivers/gpu/drm/i915/display/i9xx_plane.c
index 8d3346199645..943dcd3b7a0e 100644
--- a/drivers/gpu/drm/i915/display/i9xx_plane.c
+++ b/drivers/gpu/drm/i915/display/i9xx_plane.c
@@ -775,9 +775,9 @@ i8xx_plane_max_stride(struct intel_plane *plane,
 		return 8 * 1024;
 }
 
-static unsigned int vlv_primary_min_alignment(struct intel_plane *plane,
-					      const struct drm_framebuffer *fb,
-					      int color_plane)
+unsigned int vlv_plane_min_alignment(struct intel_plane *plane,
+				     const struct drm_framebuffer *fb,
+				     int color_plane)
 {
 	if (intel_plane_can_async_flip(plane, fb->modifier))
 		return 256 * 1024;
@@ -938,7 +938,7 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
 	}
 
 	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
-		plane->min_alignment = vlv_primary_min_alignment;
+		plane->min_alignment = vlv_plane_min_alignment;
 	else if (DISPLAY_VER(dev_priv) >= 5 || IS_G4X(dev_priv))
 		plane->min_alignment = g4x_primary_min_alignment;
 	else if (DISPLAY_VER(dev_priv) == 4)
diff --git a/drivers/gpu/drm/i915/display/i9xx_plane.h b/drivers/gpu/drm/i915/display/i9xx_plane.h
index 0ca12d1e6839..457f4bccf106 100644
--- a/drivers/gpu/drm/i915/display/i9xx_plane.h
+++ b/drivers/gpu/drm/i915/display/i9xx_plane.h
@@ -9,6 +9,7 @@
 #include <linux/types.h>
 
 enum pipe;
+struct drm_framebuffer;
 struct drm_i915_private;
 struct intel_crtc;
 struct intel_initial_plane_config;
@@ -19,6 +20,9 @@ struct intel_plane_state;
 unsigned int i965_plane_max_stride(struct intel_plane *plane,
 				   u32 pixel_format, u64 modifier,
 				   unsigned int rotation);
+unsigned int vlv_plane_min_alignment(struct intel_plane *plane,
+				     const struct drm_framebuffer *fb,
+				     int colot_plane);
 int i9xx_check_plane_surface(struct intel_plane_state *plane_state);
 
 struct intel_plane *
diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c
index e6fadcef58e0..13996d7059ad 100644
--- a/drivers/gpu/drm/i915/display/intel_sprite.c
+++ b/drivers/gpu/drm/i915/display/intel_sprite.c
@@ -253,21 +253,6 @@ int vlv_plane_min_cdclk(const struct intel_crtc_state *crtc_state,
 	return DIV_ROUND_UP(pixel_rate * num, den);
 }
 
-static unsigned int vlv_sprite_min_alignment(struct intel_plane *plane,
-					     const struct drm_framebuffer *fb,
-					     int color_plane)
-{
-	switch (fb->modifier) {
-	case I915_FORMAT_MOD_X_TILED:
-		return 4 * 1024;
-	case DRM_FORMAT_MOD_LINEAR:
-		return 128 * 1024;
-	default:
-		MISSING_CASE(fb->modifier);
-		return 0;
-	}
-}
-
 static u32 vlv_sprite_ctl_crtc(const struct intel_crtc_state *crtc_state)
 {
 	u32 sprctl = 0;
@@ -1616,7 +1601,7 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
 		plane->get_hw_state = vlv_sprite_get_hw_state;
 		plane->check_plane = vlv_sprite_check;
 		plane->max_stride = i965_plane_max_stride;
-		plane->min_alignment = vlv_sprite_min_alignment;
+		plane->min_alignment = vlv_plane_min_alignment;
 		plane->min_cdclk = vlv_plane_min_cdclk;
 
 		if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B) {
-- 
2.45.2