sna: Track desired flushes better after starting a new batch

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/intel_list.h b/src/intel_list.h
index de0b6837..51af825d 100644
--- a/src/intel_list.h
+++ b/src/intel_list.h
@@ -403,5 +403,10 @@ static inline void list_move_tail(struct list *list, struct list *head)
 #define container_of(ptr, type, member) \
 	((type *)((char *)(ptr) - (char *) &((type *)0)->member))
 
+static inline int list_is_singular(const struct list *list)
+{
+	return list->next == list->prev;
+}
+
 #endif /* _INTEL_LIST_H_ */