sync: move declarations from sync/sync.h to sync.c

None of these should be needed or used outside of sync.c.

Test: lunch bullhead-eng ; m
Change-Id: I548a499d0e2ada2ab4987e63a8116327c3be0076

1 files changed, 39 insertions, 0 deletions

diff --git a/libsync/sync.c b/libsync/sync.c
index f3e26e111..e68cc899d 100644
--- a/libsync/sync.c
+++ b/libsync/sync.c
@@ -29,6 +29,45 @@
 
 #include <sync/sync.h>
 
+/* Legacy Sync API */
+
+struct sync_legacy_merge_data {
+ int32_t fd2;
+ char name[32];
+ int32_t fence;
+};
+
+/**
+ * DOC: SYNC_IOC_MERGE - merge two fences
+ *
+ * Takes a struct sync_merge_data.  Creates a new fence containing copies of
+ * the sync_pts in both the calling fd and sync_merge_data.fd2.  Returns the
+ * new fence's fd in sync_merge_data.fence
+ *
+ * This is the legacy version of the Sync API before the de-stage that happened
+ * on Linux kernel 4.7.
+ */
+#define SYNC_IOC_LEGACY_MERGE   _IOWR(SYNC_IOC_MAGIC, 1, \
+    struct sync_legacy_merge_data)
+
+/**
+ * DOC: SYNC_IOC_LEGACY_FENCE_INFO - get detailed information on a fence
+ *
+ * Takes a struct sync_fence_info_data with extra space allocated for pt_info.
+ * Caller should write the size of the buffer into len.  On return, len is
+ * updated to reflect the total size of the sync_fence_info_data including
+ * pt_info.
+ *
+ * pt_info is a buffer containing sync_pt_infos for every sync_pt in the fence.
+ * To iterate over the sync_pt_infos, use the sync_pt_info.len field.
+ *
+ * This is the legacy version of the Sync API before the de-stage that happened
+ * on Linux kernel 4.7.
+ */
+#define SYNC_IOC_LEGACY_FENCE_INFO  _IOWR(SYNC_IOC_MAGIC, 2,\
+    struct sync_fence_info_data)
+
+/* SW Sync API */
 
 struct sw_sync_create_fence_data {
   __u32 value;