[src/trunk]: src/sys/arch/arm/arm32 add memory access barrier

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

details:   https://anonhg.NetBSD.org/src/rev/ac116a71d549
branches:  trunk
changeset: 802447:ac116a71d549
user:      ryo <ryo%NetBSD.org@localhost>
date:      Sun Sep 14 20:35:45 2014 +0000

description:
add memory access barrier

diffstat:

 sys/arch/arm/arm32/arm32_boot.c |  5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diffs (26 lines):

diff -r 3683e566ae73 -r ac116a71d549 sys/arch/arm/arm32/arm32_boot.c
--- a/sys/arch/arm/arm32/arm32_boot.c   Sun Sep 14 20:16:07 2014 +0000
+++ b/sys/arch/arm/arm32/arm32_boot.c   Sun Sep 14 20:35:45 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: arm32_boot.c,v 1.7 2014/03/28 21:39:09 matt Exp $      */
+/*     $NetBSD: arm32_boot.c,v 1.8 2014/09/14 20:35:45 ryo Exp $       */
 
 /*
  * Copyright (c) 2002, 2003, 2005  Genetec Corporation.  All rights reserved.
@@ -123,7 +123,7 @@
 
 #include <sys/cdefs.h>
 
-__KERNEL_RCSID(1, "$NetBSD: arm32_boot.c,v 1.7 2014/03/28 21:39:09 matt Exp $");
+__KERNEL_RCSID(1, "$NetBSD: arm32_boot.c,v 1.8 2014/09/14 20:35:45 ryo Exp $");
 
 #include "opt_ddb.h"
 #include "opt_kgdb.h"
@@ -408,6 +408,7 @@
        printf(" done!\n");
 #endif
        atomic_and_32(&arm_cpu_mbox, ~(1 << cpuid));
+       membar_producer();
        __asm __volatile("sev; sev; sev");
 }
 #endif /* MULTIPROCESSOR */