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/* $OpenBSD: scb.h,v 1.7 2004/07/07 23:10:45 deraadt Exp $ */
/* $NetBSD: scb.h,v 1.11 2000/07/10 09:14:34 ragge Exp $ */
/*
* Copyright (c) 1994 Ludd, University of Lule}, Sweden.
* All rights reserved.
*
* 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 at Ludd, University of Lule}.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#ifndef _VAX_SCB_H
#define _VAX_SCB_H
/*
* Definition of the System Control Block. More about it can be
* found in the Vax Architecture Reference Manual, section 6.6.
*/
struct scb {
void *scb_unused; /* First unused vector */
void *scb_mcheck;
void *scb_kspinv;
void *scb_powfail;
void *scb_privinst; /* 10 Privileged Instruction fault */
void *scb_xfcinst;
void *scb_resop;
void *scb_resad;
void *scb_accessv; /* 20 Access Control violation fault */
void *scb_transinv;
void *scb_trace;
void *scb_breakp;
void *scb_compat; /* 30 Compatibility instruction fault */
void *scb_arith;
void *scb_unused1;
void *scb_unused2;
void *scb_chmk; /* 40 CHMK */
void *scb_chme;
void *scb_chms;
void *scb_chmu;
void *scb_sbisilo; /* 50 SBI Silo compare */
void *scb_cmrd;
void *scb_sbialert;
void *scb_sbifault;
void *scb_memwtimo; /* 60 Memory write timeout */
void *scb_unused3;
void *scb_unused4;
void *scb_unused5;
void *scb_unused6; /* 70 unused */
void *scb_unused7;
void *scb_unused8;
void *scb_unused9;
void *scb_unused10; /* 80 unused */
void *scb_softint1;
void *scb_softint2;
void *scb_softint3;
void *scb_softint4; /* 90 Software interrupt level 4 */
void *scb_softint5;
void *scb_softint6;
void *scb_softint7;
void *scb_softint8; /* A0 Software interrupt level 8 */
void *scb_softint9;
void *scb_softinta;
void *scb_softintb;
void *scb_softintc; /* B0 Software interrupt level C */
void *scb_softintd;
void *scb_softinte;
void *scb_softintf;
void *scb_timer; /* C0 Interval timer */
void *scb_unused11;
void *scb_unused12;
void *scb_unused13;
void *scb_unused14; /* D0 Unused */
void *scb_unused15;
void *scb_unused16;
void *scb_unused17;
void *scb_unused18; /* E0 Unused */
void *scb_unused19;
void *scb_unused20;
void *scb_unused21;
void *scb_csrint;
void *scb_cstint; /* F0 Console storage transmit interrupt */
void *scb_ctrint;
void *scb_cttint;
struct ivec_dsp *scb_nexvec[4][16]; /* Nexus interrupt vectors */
};
#define SCB_KSTACK 0
#define SCB_ISTACK 1
#define vecnum(bus, ipl, tr) (256+(ipl-0x14)*64+tr*4+bus*256)
/*
* This struct is used when setting up interrupt vectors dynamically.
* It put a opaque 32 bit quanity on the stack and also has a placeholder
* for evcount structure.
*/
struct ivec_dsp {
char pushr; /* pushr */
char pushrarg; /* $0x3f */
char jsb;
char mode;
long displacement;
void (*hoppaddr)(void *);
void *pushlarg;
struct evcount *ev;
};
#ifdef _KERNEL
extern const struct ivec_dsp idsptch;
extern struct scb *scb;
extern struct ivec_dsp *scb_vec;
extern struct evcount devipl_intrcnts[4]; /* IPL 2[0123] */
extern paddr_t scb_init (paddr_t);
extern int scb_vecref (int *, int *);
extern void scb_fake (int, int);
extern void scb_vecalloc (int, void(*)(void *), void *, int, struct evcount *);
#endif /* _KERNEL */
#endif /* _VAX_SCB_H */
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