1 /* $OpenBSD: OSFpal.c,v 1.9 2023/01/16 07:29:32 deraadt Exp $ */ 2 /* $NetBSD: OSFpal.c,v 1.8 2001/07/22 15:17:30 wiz Exp $ */ 3 4 /* 5 * Copyright (c) 1994, 1996 Carnegie-Mellon University. 6 * All rights reserved. 7 * 8 * Author: Keith Bostic 9 * 10 * Permission to use, copy, modify and distribute this software and 11 * its documentation is hereby granted, provided that both the copyright 12 * notice and this permission notice appear in all copies of the 13 * software, derivative works or modified versions, and any portions 14 * thereof, and that both notices appear in supporting documentation. 15 * 16 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 17 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 18 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 19 * 20 * Carnegie Mellon requests users of this software to return to 21 * 22 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 23 * School of Computer Science 24 * Carnegie Mellon University 25 * Pittsburgh PA 15213-3890 26 * 27 * any improvements or extensions that they make and grant Carnegie the 28 * rights to redistribute these changes. 29 */ 30 31 #include <sys/types.h> 32 #include <lib/libsa/stand.h> 33 34 #include <machine/prom.h> 35 #include <machine/rpb.h> 36 #include <machine/alpha_cpu.h> 37 38 paddr_t ptbr_save; 39 40 void switch_palcode(void); 41 42 void 43 OSFpal() 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