sys/arch/alpha/stand/common/OSFpal.c

   1 /* $NetBSD: OSFpal.c,v 1.8 2001/07/22 15:17:30 wiz Exp $ */
   2
   3 /*
   4  * Copyright (c) 1994, 1996 Carnegie-Mellon University.
   5  * All rights reserved.
   6  *
   7  * Author: Keith Bostic
   8  *
   9  * Permission to use, copy, modify and distribute this software and
  10  * its documentation is hereby granted, provided that both the copyright
  11  * notice and this permission notice appear in all copies of the
  12  * software, derivative works or modified versions, and any portions
  13  * thereof, and that both notices appear in supporting documentation.
  14  *
  15  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  16  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
  17  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  18  *
  19  * Carnegie Mellon requests users of this software to return to
  20  *
  21  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  22  *  School of Computer Science
  23  *  Carnegie Mellon University
  24  *  Pittsburgh PA 15213-3890
  25  *
  26  * any improvements or extensions that they make and grant Carnegie the
  27  * rights to redistribute these changes.
  28  */
  29
  30 #include <sys/types.h>
  31 #include <lib/libsa/stand.h>
  32
  33 #include <machine/prom.h>
  34 #include <machine/rpb.h>
  35 #include <machine/alpha_cpu.h>
  36
  37 paddr_t ptbr_save;
  38
  39 #include "common.h"
  40
  41 void
  42 OSFpal(void)
  43 {
  44         struct rpb *r;
  45         struct pcs *p;
  46
  47         r = (struct rpb *)HWRPB_ADDR;
  48         /*
  49          * Note, cpu_number() is a VMS op, can't necessarily call it.
  50          * Real fun: PAL_VMS_mfpr_whami == PAL_OSF1_rti...
  51          * We might not be rpb_primary_cpu_id, but it is supposed to go
  52          * first so the answer should apply to everyone.
  53          */
  54         p = LOCATE_PCS(r, r->rpb_primary_cpu_id);
  55
  56         printf("VMS PAL rev: 0x%lx\n", p->pcs_palrevisions[PALvar_OpenVMS]);
  57         printf("OSF PAL rev: 0x%lx\n", p->pcs_palrevisions[PALvar_OSF1]);
  58
  59         if(p->pcs_pal_type==PAL_TYPE_OSF1) {
  60                 printf("OSF PAL code already running.\n");
  61                 ptbr_save = ((struct alpha_pcb *)p)->apcb_ptbr;
  62                 printf("PTBR is:          0x%lx\n", ptbr_save);
  63                 return;
  64         }
  65         switch_palcode();
  66         memcpy(&p->pcs_pal_rev, &p->pcs_palrevisions[PALvar_OSF1],
  67             sizeof(p->pcs_pal_rev));
  68         printf("Switch to OSF PAL code succeeded.\n");
  69 }
  70