1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/staging/goldfish/goldfish_sync_timeline_fence.h b/drivers/staging/goldfish/goldfish_sync_timeline_fence.h
new file mode 100644
index 000000000000..638c6fb68f1e
--- /dev/null
+++ b/drivers/staging/goldfish/goldfish_sync_timeline_fence.h
@@ -0,0 +1,58 @@
+#include <linux/sync_file.h>
+#include <linux/dma-fence.h>
+
+/**
+ * struct sync_pt - sync_pt object
+ * @base: base dma_fence object
+ * @child_list: sync timeline child's list
+ * @active_list: sync timeline active child's list
+ */
+struct sync_pt {
+	struct dma_fence base;
+	struct list_head child_list;
+	struct list_head active_list;
+};
+
+/**
+ * goldfish_sync_timeline_create_internal() - creates a sync object
+ * @name:	goldfish_sync_timeline name
+ *
+ * Creates a new goldfish_sync_timeline.
+ * Returns the goldfish_sync_timeline object or NULL in case of error.
+ */
+struct goldfish_sync_timeline
+*goldfish_sync_timeline_create_internal(const char *name);
+
+/**
+ * goldfish_sync_pt_create_internal() - creates a sync pt
+ * @parent:	fence's parent goldfish_sync_timeline
+ * @size:	size to allocate for this pt
+ * @inc:	value of the fence
+ *
+ * Creates a new sync_pt as a child of @parent.  @size bytes will be
+ * allocated allowing for implementation specific data to be kept after
+ * the generic sync_timeline struct. Returns the sync_pt object or
+ * NULL in case of error.
+ */
+struct sync_pt
+*goldfish_sync_pt_create_internal(struct goldfish_sync_timeline *obj,
+									int size, unsigned int value);
+
+/**
+ * goldfish_sync_timeline_signal_internal() -
+ * signal a status change on a sync_timeline
+ * @obj:	goldfish_sync_timeline to signal
+ * @inc:	num to increment on timeline->value
+ *
+ * A sync implementation should call this any time one of it's fences
+ * has signaled or has an error condition.
+ */
+void goldfish_sync_timeline_signal_internal(struct goldfish_sync_timeline *obj,
+											unsigned int inc);
+
+/**
+ * goldfish_sync_timeline_put_internal() - dec refcount of a sync_timeline
+ * and clean up memory if it was the last ref.
+ * @obj:	goldfish_sync_timeline to decref
+ */
+void goldfish_sync_timeline_put_internal(struct goldfish_sync_timeline *obj);