[src/trunk]: src/sys/arch/mips/mips Add duplicate code that enables 64bit add...

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

details:   https://anonhg.NetBSD.org/src/rev/938d0df3634c
branches:  trunk
changeset: 321238:938d0df3634c
user:      maya <maya%NetBSD.org@localhost>
date:      Wed Mar 07 15:49:45 2018 +0000

description:
Add duplicate code that enables 64bit addressing under the right
macro conditions that is, _LP64.

The existing, previous code uses NOFPU as a condition for it.

This adds duplicated code (and later removes) for easy bisecting.

diffstat:

 sys/arch/mips/mips/locore.S |  12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)

diffs (33 lines):

diff -r 589695d391df -r 938d0df3634c sys/arch/mips/mips/locore.S
--- a/sys/arch/mips/mips/locore.S       Wed Mar 07 15:44:15 2018 +0000
+++ b/sys/arch/mips/mips/locore.S       Wed Mar 07 15:49:45 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: locore.S,v 1.211 2018/03/07 15:44:15 maya Exp $        */
+/*     $NetBSD: locore.S,v 1.212 2018/03/07 15:49:45 maya Exp $        */
 
 /*
  * Copyright (c) 1992, 1993
@@ -63,7 +63,7 @@
 #include <mips/trap.h>
 #include <mips/locore.h>
 
-RCSID("$NetBSD: locore.S,v 1.211 2018/03/07 15:44:15 maya Exp $")
+RCSID("$NetBSD: locore.S,v 1.212 2018/03/07 15:49:45 maya Exp $")
 
 #include "assym.h"
 
@@ -85,6 +85,14 @@
        mtc0    zero, MIPS_COP_0_CAUSE
        COP0_SYNC
 
+#ifdef _LP64
+       /* Enable 64-bit addressing */
+       mfc0    k0, MIPS_COP_0_STATUS
+       MFC0_HAZARD
+       or      k0, MIPS_SR_KX | MIPS_SR_UX
+       mtc0    k0, MIPS_COP_0_STATUS
+#endif
+
 #ifdef MIPS64_OCTEON
        //
        // U-boot on the erlite starts all cpus at the kernel entry point.