[src/trunk]: src/sys/arch/powerpc/powerpc use kpreempt_disable() rather than ...

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

details:   https://anonhg.NetBSD.org/src/rev/94400311e818
branches:  trunk
changeset: 351979:94400311e818
user:      chs <chs%NetBSD.org@localhost>
date:      Thu Mar 09 00:14:03 2017 +0000

description:
use kpreempt_disable() rather than splsoftclock() to disable preemption.

diffstat:

 sys/arch/powerpc/powerpc/fpu.c |  9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)

diffs (39 lines):

diff -r 124ae92fb230 -r 94400311e818 sys/arch/powerpc/powerpc/fpu.c
--- a/sys/arch/powerpc/powerpc/fpu.c    Wed Mar 08 22:55:20 2017 +0000
+++ b/sys/arch/powerpc/powerpc/fpu.c    Thu Mar 09 00:14:03 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: fpu.c,v 1.36 2015/07/06 01:55:50 matt Exp $    */
+/*     $NetBSD: fpu.c,v 1.37 2017/03/09 00:14:03 chs Exp $     */
 
 /*
  * Copyright (C) 1996 Wolfgang Solfrank.
@@ -32,7 +32,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: fpu.c,v 1.36 2015/07/06 01:55:50 matt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fpu.c,v 1.37 2017/03/09 00:14:03 chs Exp $");
 
 #include "opt_multiprocessor.h"
 
@@ -139,9 +139,10 @@
        uint32_t fpscr, ofpscr;
        int code;
 
-       int s = splsoftclock(); /* disable preemption */
+       kpreempt_disable();
 
        struct cpu_info * const ci = curcpu();
+
        /*
         * If we got preempted, we may be running on a different CPU.  So we
         * need to check for that.
@@ -180,7 +181,7 @@
                ((uint32_t *)&pcb->pcb_fpu.fpscr)[_QUAD_LOWWORD] &= ~MASKBITS;
        }
 
-       splx(s);        /* allow preemption */
+       kpreempt_enable();
 
        /*
         * Now determine the fault type.  First we test to see if any of sticky