1 files changed, 51 insertions, 9 deletions

diff --git a/drivers/gpu/drm/xe/display/intel_bo.c b/drivers/gpu/drm/xe/display/intel_bo.c
index 27437c22bd70..bad2243b9114 100644
--- a/drivers/gpu/drm/xe/display/intel_bo.c
+++ b/drivers/gpu/drm/xe/display/intel_bo.c
@@ -5,6 +5,7 @@
 
 #include "xe_bo.h"
 #include "intel_bo.h"
+#include "intel_frontbuffer.h"
 
 bool intel_bo_is_tiled(struct drm_gem_object *obj)
 {
@@ -28,10 +29,6 @@ bool intel_bo_is_protected(struct drm_gem_object *obj)
 	return xe_bo_is_protected(gem_to_xe_bo(obj));
 }
 
-void intel_bo_flush_if_display(struct drm_gem_object *obj)
-{
-}
-
 int intel_bo_fb_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
 {
 	return drm_gem_prime_mmap(obj, vma);
@@ -44,15 +41,60 @@ int intel_bo_read_from_page(struct drm_gem_object *obj, u64 offset, void *dst, i
 	return xe_bo_read(bo, offset, dst, size);
 }
 
-struct intel_frontbuffer *intel_bo_get_frontbuffer(struct drm_gem_object *obj)
+struct xe_frontbuffer {
+	struct intel_frontbuffer base;
+	struct drm_gem_object *obj;
+	struct kref ref;
+};
+
+struct intel_frontbuffer *intel_bo_frontbuffer_get(struct drm_gem_object *obj)
+{
+	struct xe_frontbuffer *front;
+
+	front = kmalloc(sizeof(*front), GFP_KERNEL);
+	if (!front)
+		return NULL;
+
+	intel_frontbuffer_init(&front->base, obj->dev);
+
+	kref_init(&front->ref);
+
+	drm_gem_object_get(obj);
+	front->obj = obj;
+
+	return &front->base;
+}
+
+void intel_bo_frontbuffer_ref(struct intel_frontbuffer *_front)
 {
-	return NULL;
+	struct xe_frontbuffer *front =
+		container_of(_front, typeof(*front), base);
+
+	kref_get(&front->ref);
+}
+
+static void frontbuffer_release(struct kref *ref)
+{
+	struct xe_frontbuffer *front =
+		container_of(ref, typeof(*front), ref);
+
+	intel_frontbuffer_fini(&front->base);
+
+	drm_gem_object_put(front->obj);
+
+	kfree(front);
+}
+
+void intel_bo_frontbuffer_put(struct intel_frontbuffer *_front)
+{
+	struct xe_frontbuffer *front =
+		container_of(_front, typeof(*front), base);
+
+	kref_put(&front->ref, frontbuffer_release);
 }
 
-struct intel_frontbuffer *intel_bo_set_frontbuffer(struct drm_gem_object *obj,
-						   struct intel_frontbuffer *front)
+void intel_bo_frontbuffer_flush_for_display(struct intel_frontbuffer *front)
 {
-	return front;
 }
 
 void intel_bo_describe(struct seq_file *m, struct drm_gem_object *obj)