[PATCH 4/4] drm/i915: Add support for CCS modifiers

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v2:
Support sprite plane.
Support pipe C/D limitation on GEN9.

This requires rebase on the correct Ville patches

Cc: Daniel Stone <daniels@xxxxxxxxxxxxx>
Cc: Kristian Høgsberg <krh@xxxxxxxxxxxxx>
Signed-off-by: Ben Widawsky <ben@xxxxxxxxxxxx>
---
 drivers/gpu/drm/i915/intel_display.c | 34 +++++++++++++++++++++++++------
 drivers/gpu/drm/i915/intel_sprite.c  | 39 +++++++++++++++++++++++++++++++++++-
 2 files changed, 66 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 877a51514c61..2a0e5cd26059 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -93,7 +93,17 @@ static const uint32_t skl_primary_formats[] = {
 	DRM_FORMAT_VYUY,
 };
 
+static const uint64_t skl_format_modifiers_noccs[] = {
+	I915_FORMAT_MOD_Yf_TILED,
+	I915_FORMAT_MOD_Y_TILED,
+	I915_FORMAT_MOD_X_TILED,
+	DRM_FORMAT_MOD_LINEAR,
+	DRM_FORMAT_MOD_INVALID
+};
+
 static const uint64_t skl_format_modifiers[] = {
+	I915_FORMAT_MOD_Yf_TILED_CCS,
+	I915_FORMAT_MOD_Y_TILED_CCS,
 	I915_FORMAT_MOD_Yf_TILED,
 	I915_FORMAT_MOD_Y_TILED,
 	I915_FORMAT_MOD_X_TILED,
@@ -13872,17 +13882,13 @@ static bool skl_mod_supported(uint32_t format, uint64_t modifier)
 			return false;
 		}
 	case DRM_FORMAT_RGB565:
-	case DRM_FORMAT_XRGB8888:
-	case DRM_FORMAT_XBGR8888:
-	case DRM_FORMAT_ARGB8888:
-	case DRM_FORMAT_ABGR8888:
 	case DRM_FORMAT_XRGB2101010:
 	case DRM_FORMAT_XBGR2101010:
 	case DRM_FORMAT_YUYV:
 	case DRM_FORMAT_YVYU:
 	case DRM_FORMAT_UYVY:
 	case DRM_FORMAT_VYUY:
-		/* All i915 modifiers are fine */
+		/* All non-ccs i915 modifiers are fine */
 		switch (modifier) {
 		case DRM_FORMAT_MOD_LINEAR:
 		case I915_FORMAT_MOD_X_TILED:
@@ -13892,6 +13898,12 @@ static bool skl_mod_supported(uint32_t format, uint64_t modifier)
 		default:
 			return false;
 		}
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_XBGR8888:
+	case DRM_FORMAT_ARGB8888:
+	case DRM_FORMAT_ABGR8888:
+		/* All i915 modifiers are fine */
+		return true;
 	default:
 		return false;
 	}
@@ -14123,13 +14135,23 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
 	primary->frontbuffer_bit = INTEL_FRONTBUFFER_PRIMARY(pipe);
 	primary->check_plane = intel_check_primary_plane;
 
-	if (INTEL_GEN(dev_priv) >= 9) {
+	if (INTEL_GEN(dev_priv) >= 10) {
 		intel_primary_formats = skl_primary_formats;
 		num_formats = ARRAY_SIZE(skl_primary_formats);
 		intel_format_modifiers = skl_format_modifiers;
 
 		primary->update_plane = skylake_update_primary_plane;
 		primary->disable_plane = skylake_disable_primary_plane;
+	} else if (INTEL_GEN(dev_priv) >= 9) {
+		intel_primary_formats = skl_primary_formats;
+		num_formats = ARRAY_SIZE(skl_primary_formats);
+		if (pipe >= PIPE_C)
+			intel_format_modifiers = skl_format_modifiers;
+		else
+			intel_format_modifiers = skl_format_modifiers_noccs;
+
+		primary->update_plane = skylake_update_primary_plane;
+		primary->disable_plane = skylake_disable_primary_plane;
 	} else if (INTEL_GEN(dev_priv) >= 4) {
 		intel_primary_formats = i965_primary_formats;
 		num_formats = ARRAY_SIZE(i965_primary_formats);
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index e80834cb1f4c..de4454a8ef9e 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -1085,7 +1085,17 @@ static uint32_t skl_plane_formats[] = {
 	DRM_FORMAT_VYUY,
 };
 
+static const uint64_t skl_plane_format_modifiers_noccs[] = {
+	I915_FORMAT_MOD_Yf_TILED,
+	I915_FORMAT_MOD_Y_TILED,
+	I915_FORMAT_MOD_X_TILED,
+	DRM_FORMAT_MOD_LINEAR,
+	DRM_FORMAT_MOD_INVALID
+};
+
 static const uint64_t skl_plane_format_modifiers[] = {
+	I915_FORMAT_MOD_Yf_TILED_CCS,
+	I915_FORMAT_MOD_Y_TILED_CCS,
 	I915_FORMAT_MOD_Yf_TILED,
 	I915_FORMAT_MOD_Y_TILED,
 	I915_FORMAT_MOD_X_TILED,
@@ -1108,6 +1118,20 @@ static bool intel_sprite_plane_format_mod_supported(struct drm_plane *plane,
 	    modifier != DRM_FORMAT_MOD_LINEAR)
 		return false;
 
+	switch (modifier) {
+	case I915_FORMAT_MOD_Yf_TILED_CCS:
+	case I915_FORMAT_MOD_Y_TILED_CCS:
+		switch (format) {
+		case DRM_FORMAT_ABGR8888:
+		case DRM_FORMAT_ARGB8888:
+		case DRM_FORMAT_XBGR8888:
+		case DRM_FORMAT_XRGB8888:
+			return true;
+		default:
+			return false;
+		}
+	}
+
 	switch (format) {
 		case DRM_FORMAT_XBGR2101010:
 		case DRM_FORMAT_ABGR2101010:
@@ -1173,7 +1197,7 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
 	}
 	intel_plane->base.state = &state->base;
 
-	if (INTEL_GEN(dev_priv) >= 9) {
+	if (INTEL_GEN(dev_priv) >= 10) {
 		intel_plane->can_scale = true;
 		state->scaler_id = -1;
 
@@ -1183,6 +1207,19 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
 		plane_formats = skl_plane_formats;
 		num_plane_formats = ARRAY_SIZE(skl_plane_formats);
 		modifiers = skl_plane_format_modifiers;
+	} else if (INTEL_GEN(dev_priv) >= 9) {
+		intel_plane->can_scale = true;
+		state->scaler_id = -1;
+
+		intel_plane->update_plane = skl_update_plane;
+		intel_plane->disable_plane = skl_disable_plane;
+
+		plane_formats = skl_plane_formats;
+		num_plane_formats = ARRAY_SIZE(skl_plane_formats);
+		if (pipe >= PIPE_C)
+			modifiers = skl_plane_format_modifiers_noccs;
+		else
+			modifiers = skl_plane_format_modifiers;
 	} else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
 		intel_plane->can_scale = false;
 		intel_plane->max_downscale = 1;
-- 
2.13.1

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