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
37paddr_t ptbr_save;
38
39#include "common.h"
40
41void
42OSFpal(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
71