drm/i915: Clean up skl vs. icl plane formats

Split the format lists for different planes on skl/icl more cleanly.

On skl+ we have just two types of planes: those can do planar and
those that can't.

On icl we have three types of planes: hdr planes, sdr planes that
can do planar, and sdr planes that can't do planar. Those latter two
are the same set of planes we must when choose from when picking the
UV vs. Y plane for planar scanout. So we shall just designate
them sdr uv planes and sdr y planes.
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190703200824.5971-7-ville.syrjala@linux.intel.com

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

@@ -1996,28 +1996,7 @@ static const u32 skl_plane_formats[] = {
 	DRM_FORMAT_VYUY,
 };
 
-static const u32 icl_plane_formats[] = {
-	DRM_FORMAT_C8,
-	DRM_FORMAT_RGB565,
-	DRM_FORMAT_XRGB8888,
-	DRM_FORMAT_XBGR8888,
-	DRM_FORMAT_ARGB8888,
-	DRM_FORMAT_ABGR8888,
-	DRM_FORMAT_XRGB2101010,
-	DRM_FORMAT_XBGR2101010,
-	DRM_FORMAT_YUYV,
-	DRM_FORMAT_YVYU,
-	DRM_FORMAT_UYVY,
-	DRM_FORMAT_VYUY,
-	DRM_FORMAT_Y210,
-	DRM_FORMAT_Y212,
-	DRM_FORMAT_Y216,
-	DRM_FORMAT_XVYU2101010,
-	DRM_FORMAT_XVYU12_16161616,
-	DRM_FORMAT_XVYU16161616,
-};
-
-static const u32 icl_hdr_plane_formats[] = {
+static const u32 skl_planar_formats[] = {
 	DRM_FORMAT_C8,
 	DRM_FORMAT_RGB565,
 	DRM_FORMAT_XRGB8888,
@@ -2026,23 +2005,14 @@ static const u32 icl_hdr_plane_formats[] = {
 	DRM_FORMAT_ABGR8888,
 	DRM_FORMAT_XRGB2101010,
 	DRM_FORMAT_XBGR2101010,
-	DRM_FORMAT_XRGB16161616F,
-	DRM_FORMAT_XBGR16161616F,
-	DRM_FORMAT_ARGB16161616F,
-	DRM_FORMAT_ABGR16161616F,
 	DRM_FORMAT_YUYV,
 	DRM_FORMAT_YVYU,
 	DRM_FORMAT_UYVY,
 	DRM_FORMAT_VYUY,
-	DRM_FORMAT_Y210,
-	DRM_FORMAT_Y212,
-	DRM_FORMAT_Y216,
-	DRM_FORMAT_XVYU2101010,
-	DRM_FORMAT_XVYU12_16161616,
-	DRM_FORMAT_XVYU16161616,
+	DRM_FORMAT_NV12,
 };
 
-static const u32 skl_planar_formats[] = {
+static const u32 glk_planar_formats[] = {
 	DRM_FORMAT_C8,
 	DRM_FORMAT_RGB565,
 	DRM_FORMAT_XRGB8888,
@@ -2056,9 +2026,12 @@ static const u32 skl_planar_formats[] = {
 	DRM_FORMAT_UYVY,
 	DRM_FORMAT_VYUY,
 	DRM_FORMAT_NV12,
+	DRM_FORMAT_P010,
+	DRM_FORMAT_P012,
+	DRM_FORMAT_P016,
 };
 
-static const u32 glk_planar_formats[] = {
+static const u32 icl_sdr_y_plane_formats[] = {
 	DRM_FORMAT_C8,
 	DRM_FORMAT_RGB565,
 	DRM_FORMAT_XRGB8888,
@@ -2071,13 +2044,15 @@ static const u32 glk_planar_formats[] = {
 	DRM_FORMAT_YVYU,
 	DRM_FORMAT_UYVY,
 	DRM_FORMAT_VYUY,
-	DRM_FORMAT_NV12,
-	DRM_FORMAT_P010,
-	DRM_FORMAT_P012,
-	DRM_FORMAT_P016,
+	DRM_FORMAT_Y210,
+	DRM_FORMAT_Y212,
+	DRM_FORMAT_Y216,
+	DRM_FORMAT_XVYU2101010,
+	DRM_FORMAT_XVYU12_16161616,
+	DRM_FORMAT_XVYU16161616,
 };
 
-static const u32 icl_planar_formats[] = {
+static const u32 icl_sdr_uv_plane_formats[] = {
 	DRM_FORMAT_C8,
 	DRM_FORMAT_RGB565,
 	DRM_FORMAT_XRGB8888,
@@ -2102,7 +2077,7 @@ static const u32 icl_planar_formats[] = {
 	DRM_FORMAT_XVYU16161616,
 };
 
-static const u32 icl_hdr_planar_formats[] = {
+static const u32 icl_hdr_plane_formats[] = {
 	DRM_FORMAT_C8,
 	DRM_FORMAT_RGB565,
 	DRM_FORMAT_XRGB8888,
@@ -2345,9 +2320,6 @@ static bool skl_plane_has_fbc(struct drm_i915_private *dev_priv,
 static bool skl_plane_has_planar(struct drm_i915_private *dev_priv,
 				 enum pipe pipe, enum plane_id plane_id)
 {
-	if (INTEL_GEN(dev_priv) >= 11)
-		return plane_id <= PLANE_SPRITE3;
-
 	/* Display WA #0870: skl, bxt */
 	if (IS_SKYLAKE(dev_priv) || IS_BROXTON(dev_priv))
 		return false;
@@ -2361,6 +2333,48 @@ static bool skl_plane_has_planar(struct drm_i915_private *dev_priv,
 	return true;
 }
 
+static const u32 *skl_get_plane_formats(struct drm_i915_private *dev_priv,
+					enum pipe pipe, enum plane_id plane_id,
+					int *num_formats)
+{
+	if (skl_plane_has_planar(dev_priv, pipe, plane_id)) {
+		*num_formats = ARRAY_SIZE(skl_planar_formats);
+		return skl_planar_formats;
+	} else {
+		*num_formats = ARRAY_SIZE(skl_plane_formats);
+		return skl_plane_formats;
+	}
+}
+
+static const u32 *glk_get_plane_formats(struct drm_i915_private *dev_priv,
+					enum pipe pipe, enum plane_id plane_id,
+					int *num_formats)
+{
+	if (skl_plane_has_planar(dev_priv, pipe, plane_id)) {
+		*num_formats = ARRAY_SIZE(glk_planar_formats);
+		return glk_planar_formats;
+	} else {
+		*num_formats = ARRAY_SIZE(skl_plane_formats);
+		return skl_plane_formats;
+	}
+}
+
+static const u32 *icl_get_plane_formats(struct drm_i915_private *dev_priv,
+					enum pipe pipe, enum plane_id plane_id,
+					int *num_formats)
+{
+	if (icl_is_hdr_plane(dev_priv, plane_id)) {
+		*num_formats = ARRAY_SIZE(icl_hdr_plane_formats);
+		return icl_hdr_plane_formats;
+	} else if (icl_is_nv12_y_plane(plane_id)) {
+		*num_formats = ARRAY_SIZE(icl_sdr_y_plane_formats);
+		return icl_sdr_y_plane_formats;
+	} else {
+		*num_formats = ARRAY_SIZE(icl_sdr_uv_plane_formats);
+		return icl_sdr_uv_plane_formats;
+	}
+}
+
 static bool skl_plane_has_ccs(struct drm_i915_private *dev_priv,
 			      enum pipe pipe, enum plane_id plane_id)
 {
@@ -2414,30 +2428,15 @@ skl_universal_plane_create(struct drm_i915_private *dev_priv,
 	if (icl_is_nv12_y_plane(plane_id))
 		plane->update_slave = icl_update_slave;
 
-	if (skl_plane_has_planar(dev_priv, pipe, plane_id)) {
-		if (icl_is_hdr_plane(dev_priv, plane_id)) {
-			formats = icl_hdr_planar_formats;
-			num_formats = ARRAY_SIZE(icl_hdr_planar_formats);
-		} else if (INTEL_GEN(dev_priv) >= 11) {
-			formats = icl_planar_formats;
-			num_formats = ARRAY_SIZE(icl_planar_formats);
-		} else if (INTEL_GEN(dev_priv) == 10 || IS_GEMINILAKE(dev_priv)) {
-			formats = glk_planar_formats;
-			num_formats = ARRAY_SIZE(glk_planar_formats);
-		} else {
-			formats = skl_planar_formats;
-			num_formats = ARRAY_SIZE(skl_planar_formats);
-		}
-	} else if (icl_is_hdr_plane(dev_priv, plane_id)) {
-		formats = icl_hdr_plane_formats;
-		num_formats = ARRAY_SIZE(icl_hdr_plane_formats);
-	} else if (INTEL_GEN(dev_priv) >= 11) {
-		formats = icl_plane_formats;
-		num_formats = ARRAY_SIZE(icl_plane_formats);
-	} else {
-		formats = skl_plane_formats;
-		num_formats = ARRAY_SIZE(skl_plane_formats);
-	}
+	if (INTEL_GEN(dev_priv) >= 11)
+		formats = icl_get_plane_formats(dev_priv, pipe,
+						plane_id, &num_formats);
+	else if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
+		formats = glk_get_plane_formats(dev_priv, pipe,
+						plane_id, &num_formats);
+	else
+		formats = skl_get_plane_formats(dev_priv, pipe,
+						plane_id, &num_formats);
 
 	plane->has_ccs = skl_plane_has_ccs(dev_priv, pipe, plane_id);
 	if (plane->has_ccs)