[src/netbsd-1-6]: src/sys/arch/hpcmips/vr Pull up revision 1.40 (requested by...

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

details:   https://anonhg.NetBSD.org/src/rev/06537b2291d7
branches:  netbsd-1-6
changeset: 529775:06537b2291d7
user:      he <he%NetBSD.org@localhost>
date:      Thu Dec 12 22:53:52 2002 +0000

description:
Pull up revision 1.40 (requested by shin in ticket #1013):
  Wipe out all physical memory before hibernate/reset.
  Otherwise, WinCE will not boot on some machines (e.g. IBM
  z50).

diffstat:

 sys/arch/hpcmips/vr/vr.c |  27 +++++++++++++++++++--------
 1 files changed, 19 insertions(+), 8 deletions(-)

diffs (55 lines):

diff -r 8aeba7a84e6c -r 06537b2291d7 sys/arch/hpcmips/vr/vr.c
--- a/sys/arch/hpcmips/vr/vr.c  Thu Dec 12 22:47:28 2002 +0000
+++ b/sys/arch/hpcmips/vr/vr.c  Thu Dec 12 22:53:52 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: vr.c,v 1.39 2002/02/11 11:44:36 takemura Exp $ */
+/*     $NetBSD: vr.c,v 1.39.10.1 2002/12/12 22:53:52 he Exp $  */
 
 /*-
  * Copyright (c) 1999-2002
@@ -59,6 +59,8 @@
 #include <hpcmips/vr/vripreg.h>
 #include <hpcmips/vr/rtcreg.h>
 
+#include <mips/cache.h>
+
 #include "vrip_common.h"
 #if NVRIP_COMMON > 0
 #include <hpcmips/vr/vripvar.h>
@@ -474,6 +476,9 @@
 #endif /* NVRKIU > 0 */
 }
 
+extern char vr_hibernate[];
+extern char evr_hibernate[];
+
 void
 vr_reboot(int howto, char *bootstr)
 {
@@ -482,13 +487,19 @@
         */
        if ((howto & RB_POWERDOWN) == RB_POWERDOWN) {
                printf("fake powerdown\n");
-               __asm(__CONCAT(".word   ",___STRING(VR_OPCODE_HIBERNATE)));
-               __asm("nop");
-               __asm("nop");
-               __asm("nop");
-               __asm("nop");
-               __asm("nop");
-               __asm(".set reorder");
+               /*
+                * copy vr_hibernate() to top of physical memory.
+                */
+               memcpy((void *)MIPS_KSEG0_START, vr_hibernate,
+                  evr_hibernate - (char *)vr_hibernate);
+               /* sync I&D cache */
+               mips_dcache_wbinv_all();
+               mips_icache_sync_all();
+               /*
+                * call vr_hibernate() at MIPS_KSEG0_START.
+                */
+               ((void (*)(void *,int))MIPS_KSEG0_START)(
+                   (void *)MIPS_KSEG0_START, ptoa(physmem));
                /* not reach */
                vr_reboot(howto&~RB_HALT, bootstr);
        }