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Console Communication Area (CCA) layout description.

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Used on for example VAX 6000 machines.
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ragge 2000-07-06 17:34:29 +00:00
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commit 5c50116697
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sys/arch/vax/include/cca.h Normal file
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/* $NetBSD: cca.h,v 1.1 2000/07/06 17:34:29 ragge Exp $ */
/*
* Copyright (c) 2000 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}, Sweden and its contributors.
* 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.
*/
/*
* Console Communication Area (CCA) layout description.
* OBS! This is incomplete and should be filled out if someone
* find docs for it.
*/
struct cca {
struct cca *cca_base; /* Physical base address of block */
short cca_size; /* Size of this struct */
short cca_id; /* 'CC' */
char cca_maxcpu; /* max number of CPUs */
char cca_cksum; /* Checksum of all earlier bytes */
char cca_flags;
char cca_revision;
u_int64_t cca_ready; /* Data ready? */
u_int64_t cca_console; /* Processors in console mode */
u_int64_t cca_enabled; /* enabled/disabled */
long cca_bitmapsz; /* Size of memory bitmap */
long cca_bitmap; /* Address of memory bitmap */
long cca_bmcksum; /* Bitmap checksum */
long cca_bootdev; /* Node numbers */
u_int64_t cca_starting; /* Processors currently starting */
u_int64_t cca_restart; /* Processors currently restarting */
long cca_pad1[3];
u_int64_t cca_halted; /* Processors currently halted bny user */
char cca_sernum[8]; /* Serial number */
char cca_revs[16][8];/* CPU revisions */
u_int64_t cca_vecenab; /* Processors with enabled vector processors */
u_int64_t cca_vecwork; /* Processors with working vector processors */
long cca_vecrevs[16];/* Vector processor revisions */
char cca_pad2[208];
/* Inter-CPU communication structs */
struct {
char cc_flags; /* Status flags */
char cc_to; /* Node sending to */
char cc_from; /* Node sending from */
char cc_pad;
char cc_txlen; /* Length of transmit message */
char cc_rxlen; /* Length of receive message */
char cc_unbuf;
char cc_txbuf[80]; /* Transmit buffer */
char cc_rxbuf[80]; /* Receive buffer */
} cca_cc[64];
};
#ifdef _KERNEL
extern struct cca *cca;
#endif