[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.murthy at 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