[src/netbsd-1-5]: src/sys/arch/mips/mips pull up revision 1.45 (Approved by r...

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

details:   https://anonhg.NetBSD.org/src/rev/c9d582805ba3
branches:  netbsd-1-5
changeset: 489016:c9d582805ba3
user:      shin <shin%NetBSD.org@localhost>
date:      Thu Aug 10 00:55:16 2000 +0000

description:
pull up revision 1.45 (Approved by relent-1-5):

protect doubleword register from interrupt.

diffstat:

 sys/arch/mips/mips/locore_mips3.S |  9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

diffs (28 lines):

diff -r ffc020bdc03c -r c9d582805ba3 sys/arch/mips/mips/locore_mips3.S
--- a/sys/arch/mips/mips/locore_mips3.S Wed Aug 09 23:30:02 2000 +0000
+++ b/sys/arch/mips/mips/locore_mips3.S Thu Aug 10 00:55:16 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: locore_mips3.S,v 1.36.2.2 2000/06/21 19:42:06 soren Exp $      */
+/*     $NetBSD: locore_mips3.S,v 1.36.2.3 2000/08/10 00:55:16 shin Exp $       */
 
 /*
  * Copyright (c) 1997 Jonathan Stone (hereinafter referred to as the author)
@@ -2548,12 +2548,17 @@
 END(mips3_write_compare)
 
 LEAF(mips3_write_xcontext_upper)
+       mfc0    v1, MIPS_COP_0_STATUS           # save status register
+       mtc0    zero, MIPS_COP_0_STATUS         # disable interrupts
+       nop
+       nop
+       nop
        dsll    a0, 32
        dmtc0   a0, MIPS_COP_0_TLB_XCONTEXT     # Store segment map for access
        nop
        nop
        j       ra
-       nop
+       mtc0    v1, MIPS_COP_0_STATUS           # restore status register
 END(mips3_write_xcontext_upper)
 
 /*