[Intel-xe] [PATCH v2 05/11] drm/xe: Add frontbuffer setter/getter for xe_bo

["Jouni Högander" <jouni.hogander@intel.com>]

Xe is not carrying frontbuffer pointer in xe_bo. Define it's getter as
NULL.  Setter simply returns pointer which was provided as a
parameter and taking/releasing reference to xe_bo.

v2: Handle xe_bo_put as well

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
---
 drivers/gpu/drm/xe/xe_bo.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_bo.h b/drivers/gpu/drm/xe/xe_bo.h
index 0823dda0f31b..148b097dd2f8 100644
--- a/drivers/gpu/drm/xe/xe_bo.h
+++ b/drivers/gpu/drm/xe/xe_bo.h
@@ -325,6 +325,16 @@ static inline unsigned int xe_sg_segment_size(struct device *dev)
 	return round_down(max / 2, PAGE_SIZE);
 }
 
+#define i915_gem_object_get_frontbuffer(obj) NULL
+
+static inline struct intel_frontbuffer *
+i915_gem_object_set_frontbuffer(struct xe_bo *bo,
+				struct intel_frontbuffer *front)
+{
+	front ? xe_bo_get(bo) : xe_bo_put(bo);
+	return front;
+}
+
 #if IS_ENABLED(CONFIG_DRM_XE_KUNIT_TEST)
 /**
  * xe_bo_is_mem_type - Whether the bo currently resides in the given
-- 
2.34.1