From: Ville Syrjälä <ville.syrj...@linux.intel.com>

Split intel_cursor_alignment() into per-platform variants.

Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_cursor.c | 40 +++++++++++++++++++--
 drivers/gpu/drm/i915/display/intel_fb.c     | 16 ---------
 drivers/gpu/drm/i915/display/intel_fb.h     |  3 --
 3 files changed, 38 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_cursor.c 
b/drivers/gpu/drm/i915/display/intel_cursor.c
index 026975f569a7..737d53c50901 100644
--- a/drivers/gpu/drm/i915/display/intel_cursor.c
+++ b/drivers/gpu/drm/i915/display/intel_cursor.c
@@ -193,6 +193,13 @@ i845_cursor_max_stride(struct intel_plane *plane,
        return 2048;
 }
 
+static unsigned int i845_cursor_min_alignment(struct intel_plane *plane,
+                                             const struct drm_framebuffer *fb,
+                                             int color_plane)
+{
+       return 32;
+}
+
 static u32 i845_cursor_ctl_crtc(const struct intel_crtc_state *crtc_state)
 {
        u32 cntl = 0;
@@ -343,6 +350,28 @@ i9xx_cursor_max_stride(struct intel_plane *plane,
        return plane->base.dev->mode_config.cursor_width * 4;
 }
 
+static unsigned int i830_cursor_min_alignment(struct intel_plane *plane,
+                                             const struct drm_framebuffer *fb,
+                                             int color_plane)
+{
+       /* "AlmadorM Errata – Requires 32-bpp cursor data to be 16KB aligned." 
*/
+       return 16 * 1024; /* physical */
+}
+
+static unsigned int i85x_cursor_min_alignment(struct intel_plane *plane,
+                                             const struct drm_framebuffer *fb,
+                                             int color_plane)
+{
+       return 256; /* physical */
+}
+
+static unsigned int i9xx_cursor_min_alignment(struct intel_plane *plane,
+                                             const struct drm_framebuffer *fb,
+                                             int color_plane)
+{
+       return 4 * 1024; /* physical for i915/i945 */
+}
+
 static u32 i9xx_cursor_ctl_crtc(const struct intel_crtc_state *crtc_state)
 {
        struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
@@ -884,20 +913,27 @@ intel_cursor_plane_create(struct drm_i915_private 
*dev_priv,
 
        if (IS_I845G(dev_priv) || IS_I865G(dev_priv)) {
                cursor->max_stride = i845_cursor_max_stride;
+               cursor->min_alignment = i845_cursor_min_alignment;
                cursor->update_arm = i845_cursor_update_arm;
                cursor->disable_arm = i845_cursor_disable_arm;
                cursor->get_hw_state = i845_cursor_get_hw_state;
                cursor->check_plane = i845_check_cursor;
        } else {
                cursor->max_stride = i9xx_cursor_max_stride;
+
+               if (IS_I830(dev_priv))
+                       cursor->min_alignment = i830_cursor_min_alignment;
+               else if (IS_I85X(dev_priv))
+                       cursor->min_alignment = i85x_cursor_min_alignment;
+               else
+                       cursor->min_alignment = i9xx_cursor_min_alignment;
+
                cursor->update_arm = i9xx_cursor_update_arm;
                cursor->disable_arm = i9xx_cursor_disable_arm;
                cursor->get_hw_state = i9xx_cursor_get_hw_state;
                cursor->check_plane = i9xx_check_cursor;
        }
 
-       cursor->min_alignment = intel_cursor_alignment;
-
        cursor->cursor.base = ~0;
        cursor->cursor.cntl = ~0;
 
diff --git a/drivers/gpu/drm/i915/display/intel_fb.c 
b/drivers/gpu/drm/i915/display/intel_fb.c
index c5bae05cbbc3..c84ecae3a57c 100644
--- a/drivers/gpu/drm/i915/display/intel_fb.c
+++ b/drivers/gpu/drm/i915/display/intel_fb.c
@@ -776,22 +776,6 @@ bool intel_fb_uses_dpt(const struct drm_framebuffer *fb)
                intel_fb_modifier_uses_dpt(to_i915(fb->dev), fb->modifier);
 }
 
-unsigned int intel_cursor_alignment(struct intel_plane *plane,
-                                   const struct drm_framebuffer *fb,
-                                   int color_plane)
-{
-       struct drm_i915_private *i915 = to_i915(plane->base.dev);
-
-       if (IS_I830(i915))
-               return 16 * 1024;
-       else if (IS_I85X(i915))
-               return 256;
-       else if (IS_I845G(i915) || IS_I865G(i915))
-               return 32;
-       else
-               return 4 * 1024;
-}
-
 static unsigned int intel_linear_alignment(const struct drm_i915_private 
*dev_priv)
 {
        if (DISPLAY_VER(dev_priv) >= 9)
diff --git a/drivers/gpu/drm/i915/display/intel_fb.h 
b/drivers/gpu/drm/i915/display/intel_fb.h
index 86c01a3ce81e..16ebb573643f 100644
--- a/drivers/gpu/drm/i915/display/intel_fb.h
+++ b/drivers/gpu/drm/i915/display/intel_fb.h
@@ -60,9 +60,6 @@ unsigned int intel_tile_height(const struct drm_framebuffer 
*fb, int color_plane
 unsigned int intel_tile_row_size(const struct drm_framebuffer *fb, int 
color_plane);
 unsigned int intel_fb_align_height(const struct drm_framebuffer *fb,
                                   int color_plane, unsigned int height);
-unsigned int intel_cursor_alignment(struct intel_plane *plane,
-                                   const struct drm_framebuffer *fb,
-                                   int color_plane);
 unsigned int intel_surf_alignment(struct intel_plane *plane,
                                  const struct drm_framebuffer *fb,
                                  int color_plane);
-- 
2.43.2

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