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

v2:
  - Add LINEAR and Yf modifiers to list (Ville)
  - Combine i8xx and i965 into one list of formats (Ville)
  - Allow 1010102 formats for Y/Yf tiled (Ville)

v3:
  - Handle cursor formats (Ville)
  - Put handling for LINEAR in the mod_support functions (Ville)

v4:
  - List each modifier explicitly in supported modifiers (Ville)
  - Handle the CURSOR plane (Ville)

v5:
  - Split out cursor and sprite handling (Ville)

v6:
  - Actually use the sprite funcs (Emil)
  - Use unreachable (Emil)

v7:
  - Only allow Intel modifiers and LINEAR (Ben)

v8
  - Fix spite assert introduced in v6 (Daniel)

Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
Cc: Kristian H. Kristensen <hoegsb...@gmail.com>
Cc: Emil Velikov <emil.l.veli...@gmail.com>
Signed-off-by: Ben Widawsky <b...@bwidawsk.net>
---
 drivers/gpu/drm/i915/intel_display.c | 136 +++++++++++++++++++++++++++++++++--
 drivers/gpu/drm/i915/intel_sprite.c  |  82 ++++++++++++++++++++-
 2 files changed, 211 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c 
b/drivers/gpu/drm/i915/intel_display.c
index 7d55c5e3df28..877a51514c61 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -72,6 +72,12 @@ static const uint32_t i965_primary_formats[] = {
        DRM_FORMAT_XBGR2101010,
 };
 
+static const uint64_t i9xx_format_modifiers[] = {
+       I915_FORMAT_MOD_X_TILED,
+       DRM_FORMAT_MOD_LINEAR,
+       DRM_FORMAT_MOD_INVALID
+};
+
 static const uint32_t skl_primary_formats[] = {
        DRM_FORMAT_C8,
        DRM_FORMAT_RGB565,
@@ -87,11 +93,24 @@ static const uint32_t skl_primary_formats[] = {
        DRM_FORMAT_VYUY,
 };
 
+static const uint64_t skl_format_modifiers[] = {
+       I915_FORMAT_MOD_Yf_TILED,
+       I915_FORMAT_MOD_Y_TILED,
+       I915_FORMAT_MOD_X_TILED,
+       DRM_FORMAT_MOD_LINEAR,
+       DRM_FORMAT_MOD_INVALID
+};
+
 /* Cursor formats */
 static const uint32_t intel_cursor_formats[] = {
        DRM_FORMAT_ARGB8888,
 };
 
+static const uint64_t cursor_format_modifiers[] = {
+       DRM_FORMAT_MOD_LINEAR,
+       DRM_FORMAT_MOD_INVALID
+};
+
 static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
                                struct intel_crtc_state *pipe_config);
 static void ironlake_pch_clock_get(struct intel_crtc *crtc,
@@ -13810,6 +13829,108 @@ void intel_plane_destroy(struct drm_plane *plane)
        kfree(to_intel_plane(plane));
 }
 
+static bool i8xx_mod_supported(uint32_t format, uint64_t modifier)
+{
+       switch (format) {
+       case DRM_FORMAT_C8:
+       case DRM_FORMAT_RGB565:
+       case DRM_FORMAT_XRGB1555:
+       case DRM_FORMAT_XRGB8888:
+               return modifier == DRM_FORMAT_MOD_LINEAR ||
+                       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 == DRM_FORMAT_MOD_LINEAR ||
+                       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:
+               switch (modifier) {
+               case DRM_FORMAT_MOD_LINEAR:
+               case I915_FORMAT_MOD_X_TILED:
+               case I915_FORMAT_MOD_Y_TILED:
+                       return true;
+               default:
+                       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 */
+               switch (modifier) {
+               case DRM_FORMAT_MOD_LINEAR:
+               case I915_FORMAT_MOD_X_TILED:
+               case I915_FORMAT_MOD_Y_TILED:
+               case I915_FORMAT_MOD_Yf_TILED:
+                       return true;
+               default:
+                       return false;
+               }
+       default:
+               return false;
+       }
+}
+
+static bool intel_primary_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 (WARN_ON(modifier == DRM_FORMAT_MOD_INVALID))
+               return false;
+
+       if ((modifier >> 56) != DRM_FORMAT_MOD_VENDOR_INTEL &&
+           modifier != DRM_FORMAT_MOD_LINEAR)
+               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);
+
+       unreachable();
+}
+
+static bool intel_cursor_plane_format_mod_supported(struct drm_plane *plane,
+                                                   uint32_t format,
+                                                   uint64_t modifier)
+{
+       if (WARN_ON(modifier == DRM_FORMAT_MOD_INVALID))
+               return false;
+
+       return modifier == DRM_FORMAT_MOD_LINEAR && format == 
DRM_FORMAT_ARGB8888;
+}
+
 const struct drm_plane_funcs intel_plane_funcs = {
        .update_plane = drm_atomic_helper_update_plane,
        .disable_plane = drm_atomic_helper_disable_plane,
@@ -13819,6 +13940,7 @@ 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_primary_plane_format_mod_supported,
 };
 
 static int
@@ -13954,6 +14076,7 @@ static const struct drm_plane_funcs 
intel_cursor_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_cursor_plane_format_mod_supported,
 };
 
 static struct intel_plane *
@@ -13964,6 +14087,7 @@ 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);
@@ -14002,18 +14126,21 @@ 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 (INTEL_GEN(dev_priv) >= 4) {
                intel_primary_formats = i965_primary_formats;
                num_formats = ARRAY_SIZE(i965_primary_formats);
+               intel_format_modifiers = i9xx_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 = i9xx_format_modifiers;
 
                primary->update_plane = i9xx_update_primary_plane;
                primary->disable_plane = i9xx_disable_primary_plane;
@@ -14023,21 +14150,21 @@ 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)
@@ -14123,7 +14250,8 @@ intel_cursor_plane_create(struct drm_i915_private 
*dev_priv,
                                       0, &intel_cursor_plane_funcs,
                                       intel_cursor_formats,
                                       ARRAY_SIZE(intel_cursor_formats),
-                                      NULL, DRM_PLANE_TYPE_CURSOR,
+                                      cursor_format_modifiers,
+                                      DRM_PLANE_TYPE_CURSOR,
                                       "cursor %c", pipe_name(pipe));
        if (ret)
                goto fail;
diff --git a/drivers/gpu/drm/i915/intel_sprite.c 
b/drivers/gpu/drm/i915/intel_sprite.c
index 15bb43787eb5..e80834cb1f4c 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -30,6 +30,7 @@
  * support.
  */
 #include <drm/drmP.h>
+#include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_fourcc.h>
 #include <drm/drm_rect.h>
@@ -1043,6 +1044,12 @@ static const uint32_t g4x_plane_formats[] = {
        DRM_FORMAT_VYUY,
 };
 
+static const uint64_t i9xx_plane_format_modifiers[] = {
+       I915_FORMAT_MOD_X_TILED,
+       DRM_FORMAT_MOD_LINEAR,
+       DRM_FORMAT_MOD_INVALID
+};
+
 static const uint32_t snb_plane_formats[] = {
        DRM_FORMAT_XBGR8888,
        DRM_FORMAT_XRGB8888,
@@ -1078,6 +1085,68 @@ static uint32_t skl_plane_formats[] = {
        DRM_FORMAT_VYUY,
 };
 
+static const uint64_t skl_plane_format_modifiers[] = {
+       I915_FORMAT_MOD_Yf_TILED,
+       I915_FORMAT_MOD_Y_TILED,
+       I915_FORMAT_MOD_X_TILED,
+       DRM_FORMAT_MOD_LINEAR,
+       DRM_FORMAT_MOD_INVALID
+};
+
+static bool intel_sprite_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 (WARN_ON(modifier == DRM_FORMAT_MOD_INVALID))
+               return false;
+
+       BUG_ON(plane->type != DRM_PLANE_TYPE_OVERLAY);
+
+       if ((modifier >> 56) != DRM_FORMAT_MOD_VENDOR_INTEL &&
+           modifier != DRM_FORMAT_MOD_LINEAR)
+               return false;
+
+       switch (format) {
+               case DRM_FORMAT_XBGR2101010:
+               case DRM_FORMAT_ABGR2101010:
+                       if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
+                               return true;
+                       break;
+               case DRM_FORMAT_RGB565:
+               case DRM_FORMAT_ABGR8888:
+               case DRM_FORMAT_ARGB8888:
+                       if (INTEL_GEN(dev_priv) >= 9 || IS_VALLEYVIEW(dev_priv) 
|| IS_CHERRYVIEW(dev_priv))
+                               return true;
+                       break;
+               case DRM_FORMAT_XBGR8888:
+                       if (INTEL_GEN(dev_priv) >= 6)
+                               return true;
+                       break;
+               case DRM_FORMAT_XRGB8888:
+               case DRM_FORMAT_YUYV:
+               case DRM_FORMAT_YVYU:
+               case DRM_FORMAT_UYVY:
+               case DRM_FORMAT_VYUY:
+                       return true;
+       }
+
+       return false;
+}
+
+const struct drm_plane_funcs intel_sprite_plane_funcs = {
+        .update_plane = drm_atomic_helper_update_plane,
+        .disable_plane = drm_atomic_helper_disable_plane,
+        .destroy = intel_plane_destroy,
+        .set_property = drm_atomic_helper_plane_set_property,
+        .atomic_get_property = intel_plane_atomic_get_property,
+        .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_sprite_plane_format_mod_supported,
+};
+
 struct intel_plane *
 intel_sprite_plane_create(struct drm_i915_private *dev_priv,
                          enum pipe pipe, int plane)
@@ -1086,6 +1155,7 @@ 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;
@@ -1112,6 +1182,7 @@ 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;
@@ -1121,6 +1192,7 @@ intel_sprite_plane_create(struct drm_i915_private 
*dev_priv,
 
                plane_formats = vlv_plane_formats;
                num_plane_formats = ARRAY_SIZE(vlv_plane_formats);
+               modifiers = i9xx_plane_format_modifiers;
        } else if (INTEL_GEN(dev_priv) >= 7) {
                if (IS_IVYBRIDGE(dev_priv)) {
                        intel_plane->can_scale = true;
@@ -1135,6 +1207,7 @@ intel_sprite_plane_create(struct drm_i915_private 
*dev_priv,
 
                plane_formats = snb_plane_formats;
                num_plane_formats = ARRAY_SIZE(snb_plane_formats);
+               modifiers = i9xx_plane_format_modifiers;
        } else {
                intel_plane->can_scale = true;
                intel_plane->max_downscale = 16;
@@ -1142,6 +1215,7 @@ intel_sprite_plane_create(struct drm_i915_private 
*dev_priv,
                intel_plane->update_plane = g4x_update_plane;
                intel_plane->disable_plane = g4x_disable_plane;
 
+               modifiers = i9xx_plane_format_modifiers;
                if (IS_GEN6(dev_priv)) {
                        plane_formats = snb_plane_formats;
                        num_plane_formats = ARRAY_SIZE(snb_plane_formats);
@@ -1174,15 +1248,17 @@ intel_sprite_plane_create(struct drm_i915_private 
*dev_priv,
 
        if (INTEL_GEN(dev_priv) >= 9)
                ret = drm_universal_plane_init(&dev_priv->drm, 
&intel_plane->base,
-                                              possible_crtcs, 
&intel_plane_funcs,
+                                              possible_crtcs, 
&intel_sprite_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;
-- 
2.13.1

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