Subject: port-m68k/1174: 68060 additional frame formats and bits
To: None <gnats-admin@sun-lamp.pc.cs.cmu.edu>
From: Ignatios Souvatzis <is@beverly.rhein.de>
List: netbsd-bugs
Date: 06/29/1995 08:35:04
>Number: 1174
>Category: port-m68k
>Synopsis: 68060 additional frame formats and bits
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: gnats-admin (GNATS administrator)
>State: open
>Class: change-request
>Submitter-Id: net
>Arrival-Date: Thu Jun 29 08:35:03 1995
>Originator: Ignatios Souvatzis
>Organization:
Private Site
>Release: 950520
>Environment:
System: NetBSD beverly 1.0A NetBSD 1.0A (BEVERLY) #77: Thu Jun 29 00:39:58 MET DST 1995 is@beverly:/usr/src/sys/arch/amiga/compile/BEVERLY amiga
>Description:
The M68060 CPU has an additional exception frame format (#4) and
an incompatible FPU state frame, which I've added to the
/sys/arch/m68k/include/frame.h
>How-To-Repeat:
>Fix:
Take this one:
/* $NetBSD: frame.h,v 1.10 1995/05/12 12:45:24 mycroft Exp $ */
/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1982, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: Utah $Hdr: frame.h 1.8 92/12/20$
*
* @(#)frame.h 8.1 (Berkeley) 6/10/93
*/
struct frame {
struct trapframe {
int tf_regs[16];
short tf_pad;
short tf_stackadj;
u_short tf_sr;
u_int tf_pc;
u_short tf_format:4,
tf_vector:12;
} F_t;
union F_u {
struct fmt2 {
u_int f_iaddr;
} F_fmt2;
struct fmt3 {
u_int f_ea;
} F_fmt3;
struct fmt4 {
u_int f_fa;
u_int f_fslw;
/* for 060FP type 4 FP disabled frames: */
#define f_fea f_fa
#define f_pcfi f_fslw
} F_fmt4;
struct fmt7 {
u_int f_ea;
u_short f_ssw;
u_short f_wb3s, f_wb2s, f_wb1s;
u_int f_fa;
u_int f_wb3a, f_wb3d;
u_int f_wb2a, f_wb2d;
u_int f_wb1a, f_wb1d;
#define f_pd0 f_wb1d
u_int f_pd1, f_pd2, f_pd3;
} F_fmt7;
struct fmt9 {
u_int f_iaddr;
u_short f_iregs[4];
} F_fmt9;
struct fmtA {
u_short f_ir0;
u_short f_ssw;
u_short f_ipsc;
u_short f_ipsb;
u_int f_dcfa;
u_short f_ir1, f_ir2;
u_int f_dob;
u_short f_ir3, f_ir4;
} F_fmtA;
struct fmtB {
u_short f_ir0;
u_short f_ssw;
u_short f_ipsc;
u_short f_ipsb;
u_int f_dcfa;
u_short f_ir1, f_ir2;
u_int f_dob;
u_short f_ir3, f_ir4;
u_short f_ir5, f_ir6;
u_int f_sba;
u_short f_ir7, f_ir8;
u_int f_dib;
u_short f_iregs[22];
} F_fmtB;
} F_u;
};
#define f_regs F_t.tf_regs
#define f_pad F_t.tf_pad
#define f_stackadj F_t.tf_stackadj
#define f_sr F_t.tf_sr
#define f_pc F_t.tf_pc
#define f_format F_t.tf_format
#define f_vector F_t.tf_vector
#define f_fmt2 F_u.F_fmt2
#define f_fmt3 F_u.F_fmt3
#define f_fmt4 F_u.F_fmt4
#define f_fmt7 F_u.F_fmt7
#define f_fmt9 F_u.F_fmt9
#define f_fmtA F_u.F_fmtA
#define f_fmtB F_u.F_fmtB
struct switchframe {
u_int sf_pc;
};
/* common frame size */
#define CFSIZE (sizeof(struct frame) - sizeof(union F_u))
#define NFMTSIZE 9
#define FMT0 0x0
#define FMT1 0x1
#define FMT2 0x2
#define FMT3 0x3
#define FMT4 0x4
#define FMT7 0x7
#define FMT9 0x9
#define FMTA 0xA
#define FMTB 0xB
/* frame specific info sizes */
#define FMT0SIZE 0
#define FMT1SIZE 0
#define FMT2SIZE sizeof(struct fmt2)
#define FMT3SIZE sizeof(struct fmt3)
#define FMT4SIZE sizeof(struct fmt4)
#define FMT7SIZE sizeof(struct fmt7)
#define FMT9SIZE sizeof(struct fmt9)
#define FMTASIZE sizeof(struct fmtA)
#define FMTBSIZE sizeof(struct fmtB)
#define V_BUSERR 0x008
#define V_ADDRERR 0x00C
#define V_TRAP1 0x084
/* 68020/68030 SSW bits */
#define SSW_RC 0x2000
#define SSW_RB 0x1000
#define SSW_DF 0x0100
#define SSW_RM 0x0080
#define SSW_RW 0x0040
#define SSW_FCMASK 0x0007
/* 68040 SSW bits */
#define SSW4_CP 0x8000
#define SSW4_CU 0x4000
#define SSW4_CT 0x2000
#define SSW4_CM 0x1000
#define SSW4_MA 0x0800
#define SSW4_ATC 0x0400
#define SSW4_LK 0x0200
#define SSW4_RW 0x0100
#define SSW4_WBSV 0x0080 /* really in WB status, not SSW */
#define SSW4_SZMASK 0x0060
#define SSW4_SZLW 0x0000
#define SSW4_SZB 0x0020
#define SSW4_SZW 0x0040
#define SSW4_SZLN 0x0060
#define SSW4_TTMASK 0x0018
#define SSW4_TTNOR 0x0000
#define SSW4_TTM16 0x0008
#define SSW4_TMMASK 0x0007
#define SSW4_TMDCP 0x0000
#define SSW4_TMUD 0x0001
#define SSW4_TMUC 0x0002
#define SSW4_TMKD 0x0005
#define SSW4_TMKC 0x0006
/* 060 Fault Status Long Word (FPSP) */
#define FSLW_MA 0x08000000
#define FSLW_LK 0x02000000
#define FSLW_RW 0x01800000
#define FSLW_SIZE 0x00600000
/*
* We better define the FSLW_SIZE values here, as the table given in the
* MC68060UM/AD rev. 0/1 p. 8-23 is wrong, and was corrected in the errata
* document.
*/
#define FSLW_SIZE_LONG 0x00000000
#define FSLW_SIZE_BYTE 0x00200000
#define FSLW_SIZE_WORD 0x00400000
#define FSLW_SIZE_MV16 0x00600000
#define FLSW_TT 0x00180000
#define FSLW_TM 0x00070000
#define FSLW_IO 0x00008000
#define FSLW_PBE 0x00004000
#define FSLW_SBE 0x00002000
#define FSLW_PTA 0x00001000
#define FSLW_PTB 0x00000800
#define FSLW_IL 0x00000400
#define FSLW_PF 0x00000200
#define FSLW_SP 0x00000100
#define FSLW_WP 0x00000080
#define FSLW_TWE 0x00000040
#define FSLW_RE 0x00000020
#define FSLW_WE 0x00000010
#define FSLW_TTR 0x00000008
#define FSLW_BPE 0x00000004
#define FSLW_SEE 0x00000001
struct fpframe {
union FPF_u1 {
u_int FPF_null;
struct {
u_char FPF_version;
u_char FPF_fsize;
u_short FPF_res1;
} FPF_nonnull;
} FPF_u1;
union FPF_u2 {
struct fpidle {
u_short fpf_ccr;
u_short fpf_res2;
u_int fpf_iregs1[8];
u_int fpf_xops[3];
u_int fpf_opreg;
u_int fpf_biu;
} FPF_idle;
struct fpbusy {
u_int fpf_iregs[53];
} FPF_busy;
struct fpunimp {
u_int fpf_state[10];
} FPF_unimp;
} FPF_u2;
u_int fpf_regs[8*3];
u_int fpf_fpcr;
u_int fpf_fpsr;
u_int fpf_fpiar;
};
#define fpf_null FPF_u1.FPF_null
#define fpf_version FPF_u1.FPF_nonnull.FPF_version
#define fpf_fsize FPF_u1.FPF_nonnull.FPF_fsize
#define fpf_res1 FPF_u1.FPF_nonnull.FPF_res1
#define fpf_idle FPF_u2.FPF_idle
#define fpf_busy FPF_u2.FPF_busy
#define fpf_unimp FPF_u2.FPF_unimp
/*
* This is incompatible with the earlier one; expecially, an earlier frame
* must not be FRESTOREd on a 060 or vv, because a frame error exception is
* not guaranteed.
*/
struct fpframe060 {
u_short fpf6_excp_exp;
u_byte fpf6_frmfmt;
#define FPF6_FMT_NULL 0x00
#define FPF6_FMT_IDLE 0x60
#define FPF6_FMT_EXCP 0xe0
u_byte fpf6_v;
#define FPF6_V_BSUN 0
#define FPF6_V_INEX12 1
#define FPF6_V_DZ 2
#define FPF6_V_UNFL 3
#define FPF6_V_OPERR 4
#define FPF6_V_OVFL 5
#define FPF6_V_SNAN 6
#define FPF6_V_UNSUP 7
u_long fpf6_upper, fpf6_lower;
};
>Audit-Trail:
>Unformatted:
Ignatios Souvatzis