diff options
Diffstat (limited to 'sys/boot/alpha/libalpha/OSFpal.c')
| -rw-r--r-- | sys/boot/alpha/libalpha/OSFpal.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/sys/boot/alpha/libalpha/OSFpal.c b/sys/boot/alpha/libalpha/OSFpal.c new file mode 100644 index 0000000..9a0ee35 --- /dev/null +++ b/sys/boot/alpha/libalpha/OSFpal.c @@ -0,0 +1,73 @@ +/* + * $FreeBSD$ + * From $NetBSD: OSFpal.c,v 1.5 1998/06/24 01:33:19 ross Exp $ + */ + +/* + * Copyright (c) 1994, 1996 Carnegie-Mellon University. + * All rights reserved. + * + * Author: Keith Bostic + * + * Permission to use, copy, modify and distribute this software and + * its documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND + * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie the + * rights to redistribute these changes. + */ + +#include <sys/types.h> +#include <stand.h> + +#include <machine/prom.h> +#include <machine/rpb.h> +#include <machine/alpha_cpu.h> + +vm_offset_t ptbr_save; + +#include "common.h" + +void +OSFpal() +{ + struct rpb *r; + struct pcs *p; + + r = (struct rpb *)HWRPB_ADDR; + /* + * Note, cpu_number() is a VMS op, can't necessarily call it. + * Real fun: PAL_VMS_mfpr_whami == PAL_OSF1_rti... + * We might not be rpb_primary_cpu_id, but it is supposed to go + * first so the answer should apply to everyone. + */ + p = LOCATE_PCS(r, r->rpb_primary_cpu_id); + + printf("VMS PAL rev: 0x%lx\n", p->pcs_palrevisions[PALvar_OpenVMS]); + printf("OSF PAL rev: 0x%lx\n", p->pcs_palrevisions[PALvar_OSF1]); + + if(p->pcs_pal_type==PAL_TYPE_OSF1) { + printf("OSF PAL code already running.\n"); + ptbr_save = ((struct alpha_pcb *)p)->apcb_ptbr; + printf("PTBR is: 0x%lx\n", ptbr_save); + return; + } + switch_palcode(); + bcopy(&p->pcs_palrevisions[PALvar_OSF1], &p->pcs_pal_rev, + sizeof(p->pcs_pal_rev)); + printf("Switch to OSF PAL code succeeded.\n"); +} + |
