drm/i915/fb: move intel_tile_width_bytes() to intel_fb.c

Split out fb related stuff from intel_display.c to intel_fb.c.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/35c3ade81a54fea890cf92e21b778c38ab78cd04.1629721467.git.jani.nikula@intel.com

drivers/gpu/drm/i915/display/intel_display.c

@@ -879,60 +879,6 @@ intel_format_info_is_yuv_semiplanar(const struct drm_format_info *info,
 	       info->num_planes == (is_ccs_modifier(modifier) ? 4 : 2);
 }
 
-unsigned int
-intel_tile_width_bytes(const struct drm_framebuffer *fb, int color_plane)
-{
-	struct drm_i915_private *dev_priv = to_i915(fb->dev);
-	unsigned int cpp = fb->format->cpp[color_plane];
-
-	switch (fb->modifier) {
-	case DRM_FORMAT_MOD_LINEAR:
-		return intel_tile_size(dev_priv);
-	case I915_FORMAT_MOD_X_TILED:
-		if (DISPLAY_VER(dev_priv) == 2)
-			return 128;
-		else
-			return 512;
-	case I915_FORMAT_MOD_Y_TILED_CCS:
-		if (is_ccs_plane(fb, color_plane))
-			return 128;
-		fallthrough;
-	case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS:
-	case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC:
-	case I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS:
-		if (is_ccs_plane(fb, color_plane))
-			return 64;
-		fallthrough;
-	case I915_FORMAT_MOD_Y_TILED:
-		if (DISPLAY_VER(dev_priv) == 2 || HAS_128_BYTE_Y_TILING(dev_priv))
-			return 128;
-		else
-			return 512;
-	case I915_FORMAT_MOD_Yf_TILED_CCS:
-		if (is_ccs_plane(fb, color_plane))
-			return 128;
-		fallthrough;
-	case I915_FORMAT_MOD_Yf_TILED:
-		switch (cpp) {
-		case 1:
-			return 64;
-		case 2:
-		case 4:
-			return 128;
-		case 8:
-		case 16:
-			return 256;
-		default:
-			MISSING_CASE(cpp);
-			return cpp;
-		}
-		break;
-	default:
-		MISSING_CASE(fb->modifier);
-		return cpp;
-	}
-}
-
 unsigned int
 intel_fb_align_height(const struct drm_framebuffer *fb,
 		      int color_plane, unsigned int height)

drivers/gpu/drm/i915/display/intel_display.h

@@ -632,7 +632,6 @@ intel_get_crtc_new_encoder(const struct intel_atomic_state *state,
 
 unsigned int intel_surf_alignment(const struct drm_framebuffer *fb,
 				  int color_plane);
-unsigned int intel_tile_width_bytes(const struct drm_framebuffer *fb, int color_plane);
 
 void intel_display_driver_register(struct drm_i915_private *i915);
 void intel_display_driver_unregister(struct drm_i915_private *i915);

drivers/gpu/drm/i915/display/intel_fb.c

@@ -79,6 +79,60 @@ unsigned int intel_tile_size(const struct drm_i915_private *i915)
 	return DISPLAY_VER(i915) == 2 ? 2048 : 4096;
 }
 
+unsigned int
+intel_tile_width_bytes(const struct drm_framebuffer *fb, int color_plane)
+{
+	struct drm_i915_private *dev_priv = to_i915(fb->dev);
+	unsigned int cpp = fb->format->cpp[color_plane];
+
+	switch (fb->modifier) {
+	case DRM_FORMAT_MOD_LINEAR:
+		return intel_tile_size(dev_priv);
+	case I915_FORMAT_MOD_X_TILED:
+		if (DISPLAY_VER(dev_priv) == 2)
+			return 128;
+		else
+			return 512;
+	case I915_FORMAT_MOD_Y_TILED_CCS:
+		if (is_ccs_plane(fb, color_plane))
+			return 128;
+		fallthrough;
+	case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS:
+	case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC:
+	case I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS:
+		if (is_ccs_plane(fb, color_plane))
+			return 64;
+		fallthrough;
+	case I915_FORMAT_MOD_Y_TILED:
+		if (DISPLAY_VER(dev_priv) == 2 || HAS_128_BYTE_Y_TILING(dev_priv))
+			return 128;
+		else
+			return 512;
+	case I915_FORMAT_MOD_Yf_TILED_CCS:
+		if (is_ccs_plane(fb, color_plane))
+			return 128;
+		fallthrough;
+	case I915_FORMAT_MOD_Yf_TILED:
+		switch (cpp) {
+		case 1:
+			return 64;
+		case 2:
+		case 4:
+			return 128;
+		case 8:
+		case 16:
+			return 256;
+		default:
+			MISSING_CASE(cpp);
+			return cpp;
+		}
+		break;
+	default:
+		MISSING_CASE(fb->modifier);
+		return cpp;
+	}
+}
+
 unsigned int intel_tile_height(const struct drm_framebuffer *fb, int color_plane)
 {
 	if (is_gen12_ccs_plane(fb, color_plane))

drivers/gpu/drm/i915/display/intel_fb.h

@@ -28,6 +28,7 @@ int skl_ccs_to_main_plane(const struct drm_framebuffer *fb, int ccs_plane);
 int skl_main_to_aux_plane(const struct drm_framebuffer *fb, int main_plane);
 
 unsigned int intel_tile_size(const struct drm_i915_private *i915);
+unsigned int intel_tile_width_bytes(const struct drm_framebuffer *fb, int color_plane);
 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);