summaryrefslogtreecommitdiffstats
path: root/src/runtime/atomic_ppc64x.s
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--src/runtime/atomic_ppc64x.s14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/runtime/atomic_ppc64x.s b/src/runtime/atomic_ppc64x.s
new file mode 100644
index 0000000..4742b6c
--- /dev/null
+++ b/src/runtime/atomic_ppc64x.s
@@ -0,0 +1,14 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build ppc64 || ppc64le
+
+#include "textflag.h"
+
+TEXT ·publicationBarrier(SB),NOSPLIT|NOFRAME,$0-0
+ // LWSYNC is the "export" barrier recommended by Power ISA
+ // v2.07 book II, appendix B.2.2.2.
+ // LWSYNC is a load/load, load/store, and store/store barrier.
+ LWSYNC
+ RET