321 lines
7.9 KiB
C
321 lines
7.9 KiB
C
/* $NetBSD: frame.h,v 1.16 1999/04/19 20:58:37 kleink Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1982, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah $Hdr: frame.h 1.8 92/12/20$
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*
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* @(#)frame.h 8.1 (Berkeley) 6/10/93
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*/
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#ifndef _M68K_FRAME_H_
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#define _M68K_FRAME_H_
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struct frame {
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struct trapframe {
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int tf_regs[16];
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short tf_pad;
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short tf_stackadj;
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u_short tf_sr;
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u_int tf_pc;
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u_short tf_format:4,
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tf_vector:12;
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} __attribute__((packed)) F_t;
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union F_u {
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struct fmt2 {
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u_int f_iaddr;
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} F_fmt2;
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struct fmt3 {
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u_int f_ea;
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} F_fmt3;
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struct fmt4 {
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u_int f_fa;
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u_int f_fslw;
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/* for 060FP type 4 FP disabled frames: */
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#define f_fea f_fa
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#define f_pcfi f_fslw
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} F_fmt4;
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struct fmt7 {
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u_int f_ea;
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u_short f_ssw;
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u_short f_wb3s, f_wb2s, f_wb1s;
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u_int f_fa;
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u_int f_wb3a, f_wb3d;
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u_int f_wb2a, f_wb2d;
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u_int f_wb1a, f_wb1d;
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#define f_pd0 f_wb1d
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u_int f_pd1, f_pd2, f_pd3;
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} F_fmt7;
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struct fmt9 {
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u_int f_iaddr;
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u_short f_iregs[4];
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} F_fmt9;
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struct fmtA {
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u_short f_ir0;
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u_short f_ssw;
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u_short f_ipsc;
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u_short f_ipsb;
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u_int f_dcfa;
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u_short f_ir1, f_ir2;
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u_int f_dob;
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u_short f_ir3, f_ir4;
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} F_fmtA;
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struct fmtB {
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u_short f_ir0;
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u_short f_ssw;
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u_short f_ipsc;
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u_short f_ipsb;
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u_int f_dcfa;
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u_short f_ir1, f_ir2;
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u_int f_dob;
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u_short f_ir3, f_ir4;
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u_short f_ir5, f_ir6;
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u_int f_sba;
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u_short f_ir7, f_ir8;
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u_int f_dib;
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u_short f_iregs[22];
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} F_fmtB;
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} F_u;
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};
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#define f_regs F_t.tf_regs
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#define f_pad F_t.tf_pad
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#define f_stackadj F_t.tf_stackadj
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#define f_sr F_t.tf_sr
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#define f_pc F_t.tf_pc
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#define f_format F_t.tf_format
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#define f_vector F_t.tf_vector
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#define f_fmt2 F_u.F_fmt2
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#define f_fmt3 F_u.F_fmt3
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#define f_fmt4 F_u.F_fmt4
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#define f_fmt7 F_u.F_fmt7
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#define f_fmt9 F_u.F_fmt9
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#define f_fmtA F_u.F_fmtA
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#define f_fmtB F_u.F_fmtB
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struct switchframe {
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u_int sf_pc;
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};
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/* common frame size */
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#define CFSIZE (sizeof(struct frame) - sizeof(union F_u))
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#define NFMTSIZE 9
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#define FMT0 0x0
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#define FMT1 0x1
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#define FMT2 0x2
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#define FMT3 0x3
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#define FMT4 0x4
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#define FMT7 0x7
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#define FMT9 0x9
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#define FMTA 0xA
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#define FMTB 0xB
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/* frame specific info sizes */
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#define FMT0SIZE 0
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#define FMT1SIZE 0
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#define FMT2SIZE sizeof(struct fmt2)
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#define FMT3SIZE sizeof(struct fmt3)
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#define FMT4SIZE sizeof(struct fmt4)
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#define FMT7SIZE sizeof(struct fmt7)
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#define FMT9SIZE sizeof(struct fmt9)
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#define FMTASIZE sizeof(struct fmtA)
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#define FMTBSIZE sizeof(struct fmtB)
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#define V_BUSERR 0x008
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#define V_ADDRERR 0x00C
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#define V_TRAP1 0x084
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/* 68020/68030 SSW bits */
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#define SSW_RC 0x2000
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#define SSW_RB 0x1000
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#define SSW_DF 0x0100
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#define SSW_RM 0x0080
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#define SSW_RW 0x0040
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#define SSW_FCMASK 0x0007
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/* 68040 SSW bits */
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#define SSW4_CP 0x8000
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#define SSW4_CU 0x4000
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#define SSW4_CT 0x2000
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#define SSW4_CM 0x1000
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#define SSW4_MA 0x0800
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#define SSW4_ATC 0x0400
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#define SSW4_LK 0x0200
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#define SSW4_RW 0x0100
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#define SSW4_WBSV 0x0080 /* really in WB status, not SSW */
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#define SSW4_SZMASK 0x0060
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#define SSW4_SZLW 0x0000
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#define SSW4_SZB 0x0020
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#define SSW4_SZW 0x0040
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#define SSW4_SZLN 0x0060
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#define SSW4_TTMASK 0x0018
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#define SSW4_TTNOR 0x0000
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#define SSW4_TTM16 0x0008
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#define SSW4_TMMASK 0x0007
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#define SSW4_TMDCP 0x0000
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#define SSW4_TMUD 0x0001
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#define SSW4_TMUC 0x0002
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#define SSW4_TMKD 0x0005
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#define SSW4_TMKC 0x0006
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/* 060 Fault Status Long Word (FPSP) */
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#define FSLW_MA 0x08000000
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#define FSLW_LK 0x02000000
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#define FSLW_RW 0x01800000
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#define FSLW_RW_R 0x01000000
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#define FSLW_RW_W 0x00800000
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#define FSLW_SIZE 0x00600000
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/*
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* We better define the FSLW_SIZE values here, as the table given in the
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* MC68060UM/AD rev. 0/1 p. 8-23 is wrong, and was corrected in the errata
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* document.
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*/
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#define FSLW_SIZE_LONG 0x00000000
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#define FSLW_SIZE_BYTE 0x00200000
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#define FSLW_SIZE_WORD 0x00400000
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#define FSLW_SIZE_MV16 0x00600000
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#define FLSW_TT 0x00180000
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#define FSLW_TM 0x00070000
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#define FSLW_TM_SV 0x00040000
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#define FSLW_IO 0x00008000
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#define FSLW_PBE 0x00004000
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#define FSLW_SBE 0x00002000
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#define FSLW_PTA 0x00001000
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#define FSLW_PTB 0x00000800
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#define FSLW_IL 0x00000400
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#define FSLW_PF 0x00000200
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#define FSLW_SP 0x00000100
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#define FSLW_WP 0x00000080
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#define FSLW_TWE 0x00000040
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#define FSLW_RE 0x00000020
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#define FSLW_WE 0x00000010
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#define FSLW_TTR 0x00000008
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#define FSLW_BPE 0x00000004
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#define FSLW_SEE 0x00000001
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struct fpframe {
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union FPF_u1 {
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u_int FPF_null;
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struct {
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u_char FPF_version;
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u_char FPF_fsize;
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u_short FPF_res1;
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} FPF_nonnull;
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} FPF_u1;
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union FPF_u2 {
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struct fpidle {
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u_short fpf_ccr;
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u_short fpf_res2;
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u_int fpf_iregs1[8];
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u_int fpf_xops[3];
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u_int fpf_opreg;
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u_int fpf_biu;
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} FPF_idle;
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struct fpbusy {
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u_int fpf_iregs[53];
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} FPF_busy;
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struct fpunimp {
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u_int fpf_state[10];
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} FPF_unimp;
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} FPF_u2;
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u_int fpf_regs[8*3];
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u_int fpf_fpcr;
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u_int fpf_fpsr;
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u_int fpf_fpiar;
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};
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#define fpf_null FPF_u1.FPF_null
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#define fpf_version FPF_u1.FPF_nonnull.FPF_version
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#define fpf_fsize FPF_u1.FPF_nonnull.FPF_fsize
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#define fpf_res1 FPF_u1.FPF_nonnull.FPF_res1
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#define fpf_idle FPF_u2.FPF_idle
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#define fpf_busy FPF_u2.FPF_busy
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#define fpf_unimp FPF_u2.FPF_unimp
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/*
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* This is incompatible with the earlier one; expecially, an earlier frame
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* must not be FRESTOREd on a 060 or vv, because a frame error exception is
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* not guaranteed.
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*/
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struct fpframe060 {
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u_short fpf6_excp_exp;
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u_char fpf6_frmfmt;
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#define FPF6_FMT_NULL 0x00
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#define FPF6_FMT_IDLE 0x60
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#define FPF6_FMT_EXCP 0xe0
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u_char fpf6_v;
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#define FPF6_V_BSUN 0
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#define FPF6_V_INEX12 1
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#define FPF6_V_DZ 2
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#define FPF6_V_UNFL 3
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#define FPF6_V_OPERR 4
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#define FPF6_V_OVFL 5
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#define FPF6_V_SNAN 6
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#define FPF6_V_UNSUP 7
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u_long fpf6_upper, fpf6_lower;
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};
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#if defined(_KERNEL)
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/*
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* Utility function to relocate the initial frame, make room to restore an
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* exception frame and reenter the syscall.
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*/
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void reenter_syscall __P((struct frame *, int)) __attribute__((__noreturn__));
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#endif
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#endif /* _M68K_FRAME_H_ */
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