[PATCH 2/3] drm/i915: Add format modifiers for Intel

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This was based on a patch originally by Kristian. It has been modified
pretty heavily to use the new callbacks from the previous patch.

Cc: Kristian H. Kristensen <hoegsberg@xxxxxxxxx>
Signed-off-by: Ben Widawsky <ben@xxxxxxxxxxxx>
---
 drivers/gpu/drm/i915/intel_display.c | 109 ++++++++++++++++++++++++++++++++++-
 drivers/gpu/drm/i915/intel_sprite.c  |  33 ++++++++++-
 2 files changed, 137 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 8715b1083d1d..26f3a911b999 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -61,6 +61,11 @@ static const uint32_t i8xx_primary_formats[] = {
 	DRM_FORMAT_XRGB8888,
 };
 
+static const uint64_t i8xx_format_modifiers[] = {
+	I915_FORMAT_MOD_X_TILED,
+	DRM_FORMAT_MOD_INVALID
+};
+
 /* Primary plane formats for gen >= 4 */
 static const uint32_t i965_primary_formats[] = {
 	DRM_FORMAT_C8,
@@ -71,6 +76,11 @@ static const uint32_t i965_primary_formats[] = {
 	DRM_FORMAT_XBGR2101010,
 };
 
+static const uint64_t i965_format_modifiers[] = {
+	I915_FORMAT_MOD_X_TILED,
+	DRM_FORMAT_MOD_INVALID
+};
+
 static const uint32_t skl_primary_formats[] = {
 	DRM_FORMAT_C8,
 	DRM_FORMAT_RGB565,
@@ -86,6 +96,12 @@ static const uint32_t skl_primary_formats[] = {
 	DRM_FORMAT_VYUY,
 };
 
+static const uint64_t skl_format_modifiers[] = {
+	I915_FORMAT_MOD_Y_TILED,
+	I915_FORMAT_MOD_X_TILED,
+	DRM_FORMAT_MOD_INVALID
+};
+
 /* Cursor formats */
 static const uint32_t intel_cursor_formats[] = {
 	DRM_FORMAT_ARGB8888,
@@ -15173,6 +15189,87 @@ void intel_plane_destroy(struct drm_plane *plane)
 	kfree(to_intel_plane(plane));
 }
 
+static bool i8xx_mod_supported(uint32_t format, uint64_t modifier)
+{
+	if (modifier == DRM_FORMAT_MOD_NONE)
+		return true;
+
+	switch (format) {
+	case DRM_FORMAT_C8:
+	case DRM_FORMAT_RGB565:
+	case DRM_FORMAT_XRGB1555:
+	case DRM_FORMAT_XRGB8888:
+		return modifier == I915_FORMAT_MOD_X_TILED;
+	default:
+		return false;
+	}
+}
+
+static bool i965_mod_supported(uint32_t format, uint64_t modifier)
+{
+	switch (format) {
+	case DRM_FORMAT_C8:
+	case DRM_FORMAT_RGB565:
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_XBGR8888:
+	case DRM_FORMAT_XRGB2101010:
+	case DRM_FORMAT_XBGR2101010:
+		return modifier == I915_FORMAT_MOD_X_TILED;
+	default:
+		return false;
+	}
+}
+
+static bool skl_mod_supported(uint32_t format, uint64_t modifier)
+{
+	switch (format) {
+	case DRM_FORMAT_C8:
+	case DRM_FORMAT_RGB565:
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_XBGR8888:
+	case DRM_FORMAT_ARGB8888:
+	case DRM_FORMAT_ABGR8888:
+		return modifier == I915_FORMAT_MOD_Y_TILED ||
+			modifier == I915_FORMAT_MOD_X_TILED;
+	case DRM_FORMAT_XRGB2101010:
+	case DRM_FORMAT_XBGR2101010:
+		return modifier == I915_FORMAT_MOD_X_TILED;
+	case DRM_FORMAT_YUYV:
+	case DRM_FORMAT_YVYU:
+	case DRM_FORMAT_UYVY:
+	case DRM_FORMAT_VYUY:
+	default:
+		return false;
+	}
+
+}
+
+static bool intel_plane_format_mod_supported(struct drm_plane *plane,
+					     uint32_t format,
+					     uint64_t modifier)
+{
+	struct drm_i915_private *dev_priv = to_i915(plane->dev);
+
+	if (modifier == DRM_FORMAT_MOD_NONE)
+		return true;
+
+	if (WARN_ON(modifier == DRM_FORMAT_MOD_INVALID))
+		return false;
+
+	if (WARN_ON(plane->type != DRM_PLANE_TYPE_PRIMARY &&
+		    plane->type != DRM_PLANE_TYPE_OVERLAY))
+	    return false;
+
+	if (INTEL_GEN(dev_priv) >= 9)
+		return skl_mod_supported(format, modifier);
+	else if (INTEL_GEN(dev_priv) >= 4)
+		return i965_mod_supported(format, modifier);
+	else
+		return i8xx_mod_supported(format, modifier);
+
+	return false;
+}
+
 const struct drm_plane_funcs intel_plane_funcs = {
 	.update_plane = drm_atomic_helper_update_plane,
 	.disable_plane = drm_atomic_helper_disable_plane,
@@ -15182,6 +15279,7 @@ const struct drm_plane_funcs intel_plane_funcs = {
 	.atomic_set_property = intel_plane_atomic_set_property,
 	.atomic_duplicate_state = intel_plane_duplicate_state,
 	.atomic_destroy_state = intel_plane_destroy_state,
+	.format_mod_supported = intel_plane_format_mod_supported,
 };
 
 static int
@@ -15324,6 +15422,7 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
 	const uint32_t *intel_primary_formats;
 	unsigned int supported_rotations;
 	unsigned int num_formats;
+	const uint64_t *intel_format_modifiers;
 	int ret;
 
 	primary = kzalloc(sizeof(*primary), GFP_KERNEL);
@@ -15362,24 +15461,28 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
 	if (INTEL_GEN(dev_priv) >= 9) {
 		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 (HAS_PCH_SPLIT(dev_priv)) {
 		intel_primary_formats = i965_primary_formats;
 		num_formats = ARRAY_SIZE(i965_primary_formats);
+		intel_format_modifiers = i965_format_modifiers;
 
 		primary->update_plane = ironlake_update_primary_plane;
 		primary->disable_plane = i9xx_disable_primary_plane;
 	} else if (INTEL_GEN(dev_priv) >= 4) {
 		intel_primary_formats = i965_primary_formats;
 		num_formats = ARRAY_SIZE(i965_primary_formats);
+		intel_format_modifiers = i965_format_modifiers;
 
 		primary->update_plane = i9xx_update_primary_plane;
 		primary->disable_plane = i9xx_disable_primary_plane;
 	} else {
 		intel_primary_formats = i8xx_primary_formats;
 		num_formats = ARRAY_SIZE(i8xx_primary_formats);
+		intel_format_modifiers = i8xx_format_modifiers;
 
 		primary->update_plane = i9xx_update_primary_plane;
 		primary->disable_plane = i9xx_disable_primary_plane;
@@ -15389,21 +15492,21 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
 		ret = drm_universal_plane_init(&dev_priv->drm, &primary->base,
 					       0, &intel_plane_funcs,
 					       intel_primary_formats, num_formats,
-					       NULL,
+					       intel_format_modifiers,
 					       DRM_PLANE_TYPE_PRIMARY,
 					       "plane 1%c", pipe_name(pipe));
 	else if (INTEL_GEN(dev_priv) >= 5 || IS_G4X(dev_priv))
 		ret = drm_universal_plane_init(&dev_priv->drm, &primary->base,
 					       0, &intel_plane_funcs,
 					       intel_primary_formats, num_formats,
-					       NULL,
+					       intel_format_modifiers,
 					       DRM_PLANE_TYPE_PRIMARY,
 					       "primary %c", pipe_name(pipe));
 	else
 		ret = drm_universal_plane_init(&dev_priv->drm, &primary->base,
 					       0, &intel_plane_funcs,
 					       intel_primary_formats, num_formats,
-					       NULL,
+					       intel_format_modifiers,
 					       DRM_PLANE_TYPE_PRIMARY,
 					       "plane %c", plane_name(primary->plane));
 	if (ret)
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 1c2f26d86f76..152ec8196d41 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -994,6 +994,11 @@ static const uint32_t ilk_plane_formats[] = {
 	DRM_FORMAT_VYUY,
 };
 
+static const uint64_t ilk_plane_format_modifiers[] = {
+	I915_FORMAT_MOD_X_TILED,
+	DRM_FORMAT_MOD_INVALID
+};
+
 static const uint32_t snb_plane_formats[] = {
 	DRM_FORMAT_XBGR8888,
 	DRM_FORMAT_XRGB8888,
@@ -1003,6 +1008,11 @@ static const uint32_t snb_plane_formats[] = {
 	DRM_FORMAT_VYUY,
 };
 
+static const uint64_t snb_plane_format_modifiers[] = {
+	I915_FORMAT_MOD_X_TILED,
+	DRM_FORMAT_MOD_INVALID
+};
+
 static const uint32_t vlv_plane_formats[] = {
 	DRM_FORMAT_RGB565,
 	DRM_FORMAT_ABGR8888,
@@ -1017,6 +1027,11 @@ static const uint32_t vlv_plane_formats[] = {
 	DRM_FORMAT_VYUY,
 };
 
+static const uint64_t vlv_plane_format_modifiers[] = {
+	I915_FORMAT_MOD_X_TILED,
+	DRM_FORMAT_MOD_INVALID
+};
+
 static uint32_t skl_plane_formats[] = {
 	DRM_FORMAT_RGB565,
 	DRM_FORMAT_ABGR8888,
@@ -1029,6 +1044,12 @@ static uint32_t skl_plane_formats[] = {
 	DRM_FORMAT_VYUY,
 };
 
+static const uint64_t skl_plane_format_modifiers[] = {
+	I915_FORMAT_MOD_Y_TILED,
+	I915_FORMAT_MOD_X_TILED,
+	DRM_FORMAT_MOD_INVALID
+};
+
 struct intel_plane *
 intel_sprite_plane_create(struct drm_i915_private *dev_priv,
 			  enum pipe pipe, int plane)
@@ -1037,6 +1058,7 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
 	struct intel_plane_state *state = NULL;
 	unsigned long possible_crtcs;
 	const uint32_t *plane_formats;
+	const uint64_t *modifiers;
 	unsigned int supported_rotations;
 	int num_plane_formats;
 	int ret;
@@ -1063,6 +1085,7 @@ 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 (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
 		intel_plane->can_scale = false;
 		intel_plane->max_downscale = 1;
@@ -1072,6 +1095,7 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
 
 		plane_formats = vlv_plane_formats;
 		num_plane_formats = ARRAY_SIZE(vlv_plane_formats);
+		modifiers = vlv_plane_format_modifiers;
 	} else if (INTEL_GEN(dev_priv) >= 7) {
 		if (IS_IVYBRIDGE(dev_priv)) {
 			intel_plane->can_scale = true;
@@ -1086,6 +1110,7 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
 
 		plane_formats = snb_plane_formats;
 		num_plane_formats = ARRAY_SIZE(snb_plane_formats);
+		modifiers = snb_plane_format_modifiers;
 	} else {
 		intel_plane->can_scale = true;
 		intel_plane->max_downscale = 16;
@@ -1096,9 +1121,11 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
 		if (IS_GEN6(dev_priv)) {
 			plane_formats = snb_plane_formats;
 			num_plane_formats = ARRAY_SIZE(snb_plane_formats);
+			modifiers = snb_plane_format_modifiers;
 		} else {
 			plane_formats = ilk_plane_formats;
 			num_plane_formats = ARRAY_SIZE(ilk_plane_formats);
+			modifiers = ilk_plane_format_modifiers;
 		}
 	}
 
@@ -1127,13 +1154,15 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
 		ret = drm_universal_plane_init(&dev_priv->drm, &intel_plane->base,
 					       possible_crtcs, &intel_plane_funcs,
 					       plane_formats, num_plane_formats,
-					       NULL, DRM_PLANE_TYPE_OVERLAY,
+					       modifiers,
+					       DRM_PLANE_TYPE_OVERLAY,
 					       "plane %d%c", plane + 2, pipe_name(pipe));
 	else
 		ret = drm_universal_plane_init(&dev_priv->drm, &intel_plane->base,
 					       possible_crtcs, &intel_plane_funcs,
 					       plane_formats, num_plane_formats,
-					       NULL, DRM_PLANE_TYPE_OVERLAY,
+					       modifiers,
+					       DRM_PLANE_TYPE_OVERLAY,
 					       "sprite %c", sprite_name(pipe, plane));
 	if (ret)
 		goto fail;
-- 
2.11.0

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