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74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
/*
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* $FreeBSD$
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* From $NetBSD: OSFpal.c,v 1.5 1998/06/24 01:33:19 ross Exp $
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*/
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/*
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* Copyright (c) 1994, 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Keith Bostic
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#include <sys/types.h>
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#include <stand.h>
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#include <machine/prom.h>
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#include <machine/rpb.h>
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#include <machine/alpha_cpu.h>
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vm_offset_t ptbr_save;
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#include "common.h"
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void
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OSFpal()
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{
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struct rpb *r;
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struct pcs *p;
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r = (struct rpb *)HWRPB_ADDR;
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/*
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* Note, cpu_number() is a VMS op, can't necessarily call it.
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* Real fun: PAL_VMS_mfpr_whami == PAL_OSF1_rti...
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* We might not be rpb_primary_cpu_id, but it is supposed to go
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* first so the answer should apply to everyone.
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*/
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p = LOCATE_PCS(r, r->rpb_primary_cpu_id);
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printf("VMS PAL rev: 0x%lx\n", p->pcs_palrevisions[PALvar_OpenVMS]);
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printf("OSF PAL rev: 0x%lx\n", p->pcs_palrevisions[PALvar_OSF1]);
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if(p->pcs_pal_type==PAL_TYPE_OSF1) {
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printf("OSF PAL code already running.\n");
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ptbr_save = ((struct alpha_pcb *)p)->apcb_ptbr;
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printf("PTBR is: 0x%lx\n", ptbr_save);
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return;
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}
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switch_palcode();
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bcopy(&p->pcs_palrevisions[PALvar_OSF1], &p->pcs_pal_rev,
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sizeof(p->pcs_pal_rev));
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printf("Switch to OSF PAL code succeeded.\n");
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}
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