Home | History | Annotate | Line # | Download | only in common
      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 (at) 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
     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