1 /* $NetBSD: OSFpal.c,v 1.10 2021/04/12 09:18:45 mrg 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 /* XXX */
38 extern paddr_t ptbr_save;
39
40 #include "common.h"
41
42 void
OSFpal(void)43 OSFpal(void)
44 {
45 struct rpb *r;
46 struct pcs *p;
47
48 r = (struct rpb *)HWRPB_ADDR;
49 /*
50 * Note, cpu_number() is a VMS op, can't necessarily call it.
51 * Real fun: PAL_VMS_mfpr_whami == PAL_OSF1_rti...
52 * We might not be rpb_primary_cpu_id, but it is supposed to go
53 * first so the answer should apply to everyone.
54 */
55 p = LOCATE_PCS(r, r->rpb_primary_cpu_id);
56
57 printf("VMS PAL rev: 0x%lx\n", p->pcs_palrevisions[PALvar_OpenVMS]);
58 printf("OSF PAL rev: 0x%lx\n", p->pcs_palrevisions[PALvar_OSF1]);
59
60 if(p->pcs_pal_type==PAL_TYPE_OSF1) {
61 printf("OSF PAL code already running.\n");
62 ptbr_save = ((struct alpha_pcb *)p)->apcb_ptbr;
63 printf("PTBR is: 0x%lx\n", ptbr_save);
64 return;
65 }
66 switch_palcode();
67 memcpy(&p->pcs_pal_rev, &p->pcs_palrevisions[PALvar_OSF1],
68 sizeof(p->pcs_pal_rev));
69 printf("Switch to OSF PAL code succeeded.\n");
70 }
71
72