[src/trunk]: src/sys/arch/arm/vfp isb after writing cpacr, from Andrew Turner

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

details:   https://anonhg.NetBSD.org/src/rev/ad7787505772
branches:  trunk
changeset: 807955:ad7787505772
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Tue Apr 28 17:14:21 2015 +0000

description:
isb after writing cpacr, from Andrew Turner

diffstat:

 sys/arch/arm/vfp/vfp_init.c |  4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diffs (18 lines):

diff -r 337ca52452d4 -r ad7787505772 sys/arch/arm/vfp/vfp_init.c
--- a/sys/arch/arm/vfp/vfp_init.c       Tue Apr 28 17:01:40 2015 +0000
+++ b/sys/arch/arm/vfp/vfp_init.c       Tue Apr 28 17:14:21 2015 +0000
@@ -1,4 +1,4 @@
-/*      $NetBSD: vfp_init.c,v 1.47 2015/03/23 17:42:02 matt Exp $ */
+/*      $NetBSD: vfp_init.c,v 1.48 2015/04/28 17:14:21 jmcneill Exp $ */
 
 /*
  * Copyright (c) 2008 ARM Ltd
@@ -265,6 +265,8 @@
                cpacr |= __SHIFTIN(CPACR_ALL, cpacr_vfp2);
                armreg_cpacr_write(cpacr);
 
+               arm_isb();
+
                /*
                 * If we could enable them, then they exist.
                 */