181 lines
5.8 KiB
C
181 lines
5.8 KiB
C
/* $NetBSD: nexus.h,v 1.6 1995/12/13 18:55:27 ragge Exp $ */
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/*-
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* Copyright (c) 1982, 1986 The Regents of the University of California.
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* All rights reserved.
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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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* @(#)nexus.h 7.3 (Berkeley) 5/9/91
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*/
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#ifndef _VAX_NEXUS_H_
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#define _VAX_NEXUS_H_
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/*
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* Information about nexus's.
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*
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* Each machine has an address of backplane slots (nexi).
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* Each nexus is some type of adapter, whose code is the low
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* byte of the first word of the adapter address space.
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* At boot time the system looks through the array of available
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* slots and finds the interconnects for the machine.
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*/
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#define IO_CMI750 2
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#define MAXNMCR 1
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#define NNEXSBI 16
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#if VAX8600
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#define NNEX8600 NNEXSBI
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#define NEXA8600 ((struct nexus *)(0x20000000))
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#define NEXB8600 ((struct nexus *)(0x22000000))
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#endif
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#if VAX780
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#define NNEX780 NNEXSBI
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#define NEX780 ((struct nexus *)0x20000000)
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#endif
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#if VAX730
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#define NNEX730 NNEXSBI
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#define NEX730 ((struct nexus *)0xf20000)
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#endif
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#if VAX630
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#define NNEX630 1
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#define NEX630 ((struct nexus *)0x20088000)
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#endif
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#define NEXSIZE 0x2000
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#if VAX8600
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#define MAXNNEXUS (2 * NNEXSBI)
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#else
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#define MAXNNEXUS NNEXSBI
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#endif
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#ifndef ASSEMBLER
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#include "sys/types.h"
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struct nexus {
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union nexcsr {
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long nex_csr;
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u_char nex_type;
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} nexcsr;
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long nex_pad[NEXSIZE / sizeof (long) - 1];
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};
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struct sbi_attach_args {
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u_int nexnum; /* This nexus TR number */
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u_int type; /* This nexus type */
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int nexinfo; /* Some info sent between attach & match */
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void *nexaddr; /* Virtual address of this nexus */
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};
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struct iobus {
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int io_type;
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int io_addr;
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int io_size;
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int io_details;
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};
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struct nexusconnect {
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int psb_nnexus;
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struct nexus *psb_nexbase;
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int psb_ubatype;
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int psb_nubabdp;
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caddr_t *psb_umaddr;
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int *psb_nextype;
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};
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extern caddr_t *nex_vec;
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#define nex_vec_num(ipl, nexnum) nex_vec[(ipl-14)*16+nexnum]
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#endif
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/*
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* Bits in high word of nexus's.
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*/
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#define SBI_PARFLT (1<<31) /* sbi parity fault */
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#define SBI_WSQFLT (1<<30) /* write sequence fault */
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#define SBI_URDFLT (1<<29) /* unexpected read data fault */
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#define SBI_ISQFLT (1<<28) /* interlock sequence fault */
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#define SBI_MXTFLT (1<<27) /* multiple transmitter fault */
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#define SBI_XMTFLT (1<<26) /* transmit fault */
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#define NEX_CFGFLT (0xfc000000)
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#ifndef LOCORE
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#if defined(VAX780) || defined(VAX8600)
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#define NEXFLT_BITS \
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"\20\40PARFLT\37WSQFLT\36URDFLT\35ISQFLT\34MXTFLT\33XMTFLT"
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#endif
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#endif
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#define NEX_APD (1<<23) /* adaptor power down */
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#define NEX_APU (1<<22) /* adaptor power up */
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#define MBA_OT (1<<21) /* overtemperature */
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#define UBA_UBINIT (1<<18) /* unibus init */
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#define UBA_UBPDN (1<<17) /* unibus power down */
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#define UBA_UBIC (1<<16) /* unibus initialization complete */
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/*
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* Types for nex_type.
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*/
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#define NEX_ANY 0 /* pseudo for handling 11/750 */
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#define NEX_MEM4 0x08 /* 4K chips, non-interleaved mem */
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#define NEX_MEM4I 0x09 /* 4K chips, interleaved mem */
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#define NEX_MEM16 0x10 /* 16K chips, non-interleaved mem */
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#define NEX_MEM16I 0x11 /* 16K chips, interleaved mem */
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#define NEX_MBA 0x20 /* Massbus adaptor */
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#define NEX_UBA0 0x28 /* Unibus adaptor */
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#define NEX_UBA1 0x29 /* 4 flavours for 4 addr spaces */
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#define NEX_UBA2 0x2a
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#define NEX_UBA3 0x2b
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#define NEX_DR32 0x30 /* DR32 user i'face to SBI */
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#define NEX_CI 0x38 /* CI adaptor */
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#define NEX_MPM0 0x40 /* Multi-port mem */
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#define NEX_MPM1 0x41 /* Who knows why 4 different ones ? */
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#define NEX_MPM2 0x42
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#define NEX_MPM3 0x43
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#define NEX_MEM64L 0x68 /* 64K chips, non-interleaved, lower */
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#define NEX_MEM64LI 0x69 /* 64K chips, ext-interleaved, lower */
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#define NEX_MEM64U 0x6a /* 64K chips, non-interleaved, upper */
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#define NEX_MEM64UI 0x6b /* 64K chips, ext-interleaved, upper */
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#define NEX_MEM64I 0x6c /* 64K chips, interleaved */
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#define NEX_MEM256L 0x70 /* 256K chips, non-interleaved, lower */
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#define NEX_MEM256LI 0x71 /* 256K chips, ext-interleaved, lower */
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#define NEX_MEM256U 0x72 /* 256K chips, non-interleaved, upper */
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#define NEX_MEM256UI 0x73 /* 256K chips, ext-interleaved, upper */
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#define NEX_MEM256I 0x74 /* 256K chips, interleaved */
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#ifndef ASSEMBLER
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struct nexus *nexus;
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#endif
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#endif /* _VAX_NEXUS_H_ */
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