[src/trunk]: src/sys/arch/sparc/sparc lock xpmsg_lock around the safefpu ipi.

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

details:   https://anonhg.NetBSD.org/src/rev/c7cb5afd5fd7
branches:  trunk
changeset: 512216:c7cb5afd5fd7
user:      mrg <mrg%NetBSD.org@localhost>
date:      Sat Jul 07 20:12:54 2001 +0000

description:
lock xpmsg_lock around the safefpu ipi.

diffstat:

 sys/arch/sparc/sparc/trap.c |  4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diffs (22 lines):

diff -r e266489cd5d7 -r c7cb5afd5fd7 sys/arch/sparc/sparc/trap.c
--- a/sys/arch/sparc/sparc/trap.c       Sat Jul 07 20:09:15 2001 +0000
+++ b/sys/arch/sparc/sparc/trap.c       Sat Jul 07 20:12:54 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: trap.c,v 1.105 2001/06/08 09:40:32 mrg Exp $ */
+/*     $NetBSD: trap.c,v 1.106 2001/07/07 20:12:54 mrg Exp $ */
 
 /*
  * Copyright (c) 1996
@@ -452,10 +452,12 @@
                        if (cpi != NULL) {
                                if (cpi->mid == cpuinfo.mid)
                                        panic("FPU on module %d\n", mid);
+                               LOCK_XPMSG();
                                simple_lock(&cpi->fplock);
                                simple_lock(&cpi->msg.lock);
                                cpi->msg.tag = XPMSG_SAVEFPU;
                                raise_ipi_wait_and_unlock(cpi);
+                               UNLOCK_XPMSG();
                        }
                        loadfpstate(fs);
                        cpuinfo.fpproc = p;             /* now we do have it */