1 /* $NetBSD: scb.h,v 1.15 2022/04/10 09:50:45 andvar Exp $ */ 2 3 /* 4 * Copyright (c) 1994 Ludd, University of Lule}, Sweden. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifndef _VAX_SCB_H 29 #define _VAX_SCB_H 30 31 #include <sys/evcnt.h> 32 33 /* 34 * Definition of the System Control Block. More about it can be 35 * found in the Vax Architecture Reference Manual, section 6.6. 36 */ 37 struct scb { 38 void *scb_unused; /* First unused vector */ 39 void *scb_mcheck; 40 void *scb_kspinv; 41 void *scb_powfail; 42 void *scb_privinst; /* 10 Privileged Instruction fault */ 43 void *scb_xfcinst; 44 void *scb_resop; 45 void *scb_resad; 46 void *scb_accessv; /* 20 Access Control violation fault */ 47 void *scb_transinv; 48 void *scb_trace; 49 void *scb_breakp; 50 void *scb_compat; /* 30 Compatibility instruction fault */ 51 void *scb_arith; 52 void *scb_unused1; 53 void *scb_unused2; 54 void *scb_chmk; /* 40 CHMK */ 55 void *scb_chme; 56 void *scb_chms; 57 void *scb_chmu; 58 void *scb_sbisilo; /* 50 SBI Silo compare */ 59 void *scb_cmrd; 60 void *scb_sbialert; 61 void *scb_sbifault; 62 void *scb_memwtimo; /* 60 Memory write timeout */ 63 void *scb_unused3; 64 void *scb_unused4; 65 void *scb_unused5; 66 void *scb_unused6; /* 70 unused */ 67 void *scb_unused7; 68 void *scb_unused8; 69 void *scb_unused9; 70 void *scb_unused10; /* 80 unused */ 71 void *scb_softint1; 72 void *scb_softint2; 73 void *scb_softint3; 74 void *scb_softint4; /* 90 Software interrupt level 4 */ 75 void *scb_softint5; 76 void *scb_softint6; 77 void *scb_softint7; 78 void *scb_softint8; /* A0 Software interrupt level 8 */ 79 void *scb_softint9; 80 void *scb_softinta; 81 void *scb_softintb; 82 void *scb_softintc; /* B0 Software interrupt level C */ 83 void *scb_softintd; 84 void *scb_softinte; 85 void *scb_softintf; 86 void *scb_timer; /* C0 Interval timer */ 87 void *scb_unused11; 88 void *scb_unused12; 89 void *scb_unused13; 90 void *scb_unused14; /* D0 Unused */ 91 void *scb_unused15; 92 void *scb_unused16; 93 void *scb_unused17; 94 void *scb_unused18; /* E0 Unused */ 95 void *scb_unused19; 96 void *scb_unused20; 97 void *scb_unused21; 98 void *scb_csrint; 99 void *scb_cstint; /* F0 Console storage transmit interrupt */ 100 void *scb_ctrint; 101 void *scb_cttint; 102 struct ivec_dsp *scb_nexvec[4][16]; /* Nexus interrupt vectors */ 103 }; 104 105 #define SCB_KSTACK 0 106 #define SCB_ISTACK 1 107 108 #define vecnum(bus, ipl, tr) (256+(ipl-0x14)*64+tr*4+bus*256) 109 110 /* 111 * This struct is used when setting up interrupt vectors dynamically. 112 * It put a opaque 32 bit quantity on the stack and also has a placeholder 113 * for evcnt structure. 114 */ 115 struct ivec_dsp { 116 char pushr; /* pushr */ 117 char pushrarg; /* $0x3f */ 118 char jsb; 119 char mode; 120 long displacement; 121 void (*hoppaddr)(void *); 122 void *pushlarg; 123 struct evcnt *ev; 124 }; 125 126 #ifdef _KERNEL 127 extern const struct ivec_dsp idsptch; 128 extern struct scb *scb; 129 extern struct ivec_dsp *scb_vec; 130 extern struct evcnt devipl_intrcnts[4]; /* IPL 2[0123] */ 131 132 paddr_t scb_init (paddr_t); 133 int scb_vecref (int *, int *); 134 void scb_fake (int, int); 135 void scb_vecalloc (int, void(*)(void *), void *, int, struct evcnt *); 136 #endif /* _KERNEL */ 137 138 #endif /* _VAX_SCB_H */ 139