diff options
Diffstat (limited to 'sys/boot/alpha/libalpha/prom_swpal.S')
| -rw-r--r-- | sys/boot/alpha/libalpha/prom_swpal.S | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/sys/boot/alpha/libalpha/prom_swpal.S b/sys/boot/alpha/libalpha/prom_swpal.S deleted file mode 100644 index be57632ddd9b..000000000000 --- a/sys/boot/alpha/libalpha/prom_swpal.S +++ /dev/null @@ -1,139 +0,0 @@ -/* - * $FreeBSD$ - * From: $NetBSD: prom_swpal.S,v 1.2 1997/04/06 08:41:01 cgd Exp $ - */ - -/* - * Copyright (c) 1994, 1995 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. - */ - -#define ASSEMBLER -#include <machine/asm.h> -#include <machine/prom.h> -#include <machine/rpb.h> - -/* Offsets from base of HWRPB. */ -#define RPB_SELFREF 0x00 -#define RPB_SLOTSIZE 0x98 -#define RPB_PERCPU_OFF 0xA0 - -/* Offsets in a boot PCB. */ -#define PCB_KSP 0x00 -#define PCB_PTBR 0x10 -#define PCB_ASN 0x1c -#define PCB_FEN 0x28 - -/* Pal values. */ -#define PAL_RESERVED 0 /* Reserved to Digital. */ -#define PAL_VMS 1 /* VMS */ -#define PAL_OSF 2 /* OSF */ - -/* - * PAL code switch routine. - */ -#define D_RA (7*8) -#define D_S0 (8*8) -#define D_S1 (9*8) -#define D_S2 (10*8) -#define D_S3 (11*8) -#define D_S4 (12*8) -#define D_S5 (13*8) -#define PALSW_FRAME_SIZE (14*8) -#define PALSW_REGS IM_RA|IM_S0|IM_S1|IM_S2|IM_S3|IM_S4|IM_S5 - - .comm ptbr_save,8 - - .text - .align 4 - -NESTED(switch_palcode, 0, PALSW_FRAME_SIZE, ra, PALSW_REGS, 0) - LDGP(pv) -/* ldgp gp, 0(pv)*/ - - lda sp, -PALSW_FRAME_SIZE(sp) - stq ra, D_RA(sp) - stq s0, D_S0(sp) - stq s1, D_S1(sp) - stq s2, D_S2(sp) - stq s3, D_S3(sp) - stq s4, D_S4(sp) - stq s5, D_S5(sp) - - stq pv, 0(sp) - stq gp, 8(sp) - - ldiq s0, HWRPB_ADDR /* s0 HWRPB_ADDR */ - ldq s1, RPB_SLOTSIZE(s0) - call_pal PAL_VMS_mfpr_whami - mulq s1, v0, s1 /* s1 per_cpu offset from base */ - ldq s2, RPB_PERCPU_OFF(s0) - addq s0, s2, s2 - addq s2, s1, s2 /* s2 PCB (virtual) */ - - call_pal PAL_VMS_mfpr_ptbr - stq v0, PCB_PTBR(s2) - stq v0, ptbr_save /* save PTBR for the kernel */ - stl zero, PCB_ASN(s2) - stq zero, PCB_FEN(s2) - stq sp, PCB_KSP(s2) - - ldq t0, RPB_SELFREF(s0) /* HWRBP base (physical) */ - ldq t1, RPB_PERCPU_OFF(s0) - addq t0, t1, t0 - addq t0, s1, t0 /* PCB base (phys) */ - stq t0, 16(sp) - - call_pal PAL_VMS_mfpr_vptb - mov v0, a3 - ldiq a0, PAL_OSF - lda a1, contin - ldq a2, 16(sp) - - call_pal PAL_swppal /* a0, a1, a2, a3 */ - -contin: ldq pv, 0(sp) - ldq gp, 8(sp) - - ldq ra, D_RA(sp) - ldq s0, D_S0(sp) - ldq s1, D_S1(sp) - ldq s2, D_S2(sp) - ldq s3, D_S3(sp) - ldq s4, D_S4(sp) - ldq s5, D_S5(sp) - lda sp, PALSW_FRAME_SIZE(sp) - RET -END(switch_palcode) - -#undef D_RA -#undef D_S0 -#undef D_S1 -#undef D_S2 -#undef D_S3 -#undef D_S4 -#undef D_S5 -#undef PALSW_FRAME_SIZE -#undef PALSW_REGS |