[PATCH v3 5/5] drm/i915/display: Add function for format_mod_supported_async

[Arun R Murthy]

Add driver specific function definition for the plane->funcs
format_mod_supported_async to check if the provided format/modifier is
supported for asynchronous flip.

Signed-off-by: Arun R Murthy <arun.r.mur...@intel.com>
---
 drivers/gpu/drm/i915/display/skl_universal_plane.c | 62 ++++++++++++++++------
 1 file changed, 47 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c 
b/drivers/gpu/drm/i915/display/skl_universal_plane.c
index 
e5e47f2219dae62e76cbde2efb40266b047ab2b2..00aa254a3b4e992268c9159bc15687e54718dc43
 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
@@ -2526,30 +2526,62 @@ static bool tgl_plane_format_mod_supported(struct 
drm_plane *_plane,
        }
 }
 
+static bool intel_plane_format_mod_supported_async(struct drm_plane *_plane,
+                                                  u32 format, u64 modifier)
+{
+       struct intel_plane *plane = to_intel_plane(_plane);
+       struct intel_display *display = to_intel_display(plane);
+       int i, found = false;
+       u64 *async_modifiers;
+
+       if (plane->id != 1)
+               return false;
+
+       if (DISPLAY_VER(display) >= 12)
+               async_modifiers = tgl_asyn_modifiers;
+       else if (DISPLAY_VER(display) == 11)
+               async_modifiers = icl_async_modifiers;
+       else
+               async_modifiers = skl_async_modifiers;
+
+       for (i = 0; i < sizeof(async_modifiers); i++) {
+               if (modifier == async_modifiers[i])
+                       found = true;
+       }
+       if (!found)
+               return false;
+
+       /* Async flip supported only on RGB formats */
+       for (i = 0; i < sizeof(intel_async_formats); i++) {
+               if (format == intel_async_formats[i])
+                       return true;
+       }
+       return false;
+}
+
+#define INTEL_PLANE_FUNCS \
+       .update_plane = drm_atomic_helper_update_plane, \
+       .disable_plane = drm_atomic_helper_disable_plane, \
+       .destroy = intel_plane_destroy, \
+       .atomic_duplicate_state = intel_plane_duplicate_state, \
+       .atomic_destroy_state = intel_plane_destroy_state, \
+       .format_mod_supported_async = intel_plane_format_mod_supported_async
+
 static const struct drm_plane_funcs skl_plane_funcs = {
-       .update_plane = drm_atomic_helper_update_plane,
-       .disable_plane = drm_atomic_helper_disable_plane,
-       .destroy = intel_plane_destroy,
-       .atomic_duplicate_state = intel_plane_duplicate_state,
-       .atomic_destroy_state = intel_plane_destroy_state,
+       INTEL_PLANE_FUNCS,
+
        .format_mod_supported = skl_plane_format_mod_supported,
 };
 
 static const struct drm_plane_funcs icl_plane_funcs = {
-       .update_plane = drm_atomic_helper_update_plane,
-       .disable_plane = drm_atomic_helper_disable_plane,
-       .destroy = intel_plane_destroy,
-       .atomic_duplicate_state = intel_plane_duplicate_state,
-       .atomic_destroy_state = intel_plane_destroy_state,
+       INTEL_PLANE_FUNCS,
+
        .format_mod_supported = icl_plane_format_mod_supported,
 };
 
 static const struct drm_plane_funcs tgl_plane_funcs = {
-       .update_plane = drm_atomic_helper_update_plane,
-       .disable_plane = drm_atomic_helper_disable_plane,
-       .destroy = intel_plane_destroy,
-       .atomic_duplicate_state = intel_plane_duplicate_state,
-       .atomic_destroy_state = intel_plane_destroy_state,
+       INTEL_PLANE_FUNCS,
+
        .format_mod_supported = tgl_plane_format_mod_supported,
 };
 

-- 
2.25.1