[src/trunk]: src/sys/external/bsd/common/include/asm add dsb macro from vchiq

[maya <maya%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/267dddd09993
branches:  trunk
changeset: 356233:267dddd09993
user:      maya <maya%NetBSD.org@localhost>
date:      Mon Sep 11 05:22:10 2017 +0000

description:
add dsb macro from vchiq

diffstat:

 sys/external/bsd/common/include/asm/barrier.h |  3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diffs (17 lines):

diff -r ace523468bc8 -r 267dddd09993 sys/external/bsd/common/include/asm/barrier.h
--- a/sys/external/bsd/common/include/asm/barrier.h     Mon Sep 11 05:20:17 2017 +0000
+++ b/sys/external/bsd/common/include/asm/barrier.h     Mon Sep 11 05:22:10 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: barrier.h,v 1.1 2017/09/11 05:20:17 maya Exp $ */
+/*     $NetBSD: barrier.h,v 1.2 2017/09/11 05:22:10 maya Exp $ */
 
 /*-
  * Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -41,6 +41,7 @@
 #define        mb      membar_sync
 #define        wmb     membar_producer
 #define        rmb     membar_consumer
+#define        dsb     membar_producer
 
 #ifdef __alpha__               /* XXX As if...  */
 #  define      read_barrier_depends    membar_sync