cca.h revision 1.2 
1/*	$NetBSD: cca.h,v 1.2 2008/03/11 05:34:02 matt Exp $	*/
2
3/*
4 * Copyright (c) 2000 Ludd, University of Lule}, Sweden. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 *    must display the following acknowledgement:
16 *      This product includes software developed at Ludd, University of
17 *      Lule}, Sweden and its contributors.
18 * 4. The name of the author may not be used to endorse or promote products
19 *    derived from this software without specific prior written permission
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33/*
34 * Console Communication Area (CCA) layout description.
35 * OBS! This is incomplete and should be filled out if someone
36 * find docs for it.
37 */
38
39struct cca {
40	struct cca *cca_base;	/* Physical base address of block */
41	uint16_t cca_size;	/* Size of this struct */
42	uint16_t cca_id;	/* 'CC' */
43	uint8_t  cca_maxcpu;	/* max number of CPUs */
44	uint8_t  cca_cksum;	/* Checksum of all earlier bytes */
45	uint8_t  cca_flags;
46	uint8_t  cca_revision;
47
48	uint64_t cca_ready;	/* Data ready? */
49	uint64_t cca_console;	/* Processors in console mode */
50	uint64_t cca_enabled;	/* enabled/disabled */
51	uint32_t cca_bitmapsz;	/* Size of memory bitmap */
52	uint32_t cca_bitmap;	/* Address of memory bitmap */
53	uint32_t cca_bmcksum;	/* Bitmap checksum */
54	uint32_t cca_bootdev;	/* Node numbers */
55	uint64_t cca_starting;	/* Processors currently starting */
56	uint64_t cca_restart;	/* Processors currently restarting */
57	uint32_t cca_pad1[3];
58	uint64_t cca_halted;	/* Processors currently halted bny user */
59	uint8_t  cca_sernum[8];	/* Serial number */
60	uint8_t  cca_revs[16][8];/* CPU revisions */
61	uint64_t cca_vecenab;	/* Processors with enabled vector processors */
62	uint64_t cca_vecwork;	/* Processors with working vector processors */
63	uint32_t cca_vecrevs[16];/* Vector processor revisions */
64	uint8_t  cca_pad2[208];
65/* Inter-CPU communication structs */
66	struct {
67		uint8_t	cc_flags;	/* Status flags */
68		uint8_t	cc_to;		/* Node sending to */
69		uint8_t	cc_from;	/* Node sending from */
70		uint8_t	cc_pad;
71		uint8_t	cc_txlen;	/* Length of transmit message */
72		uint8_t	cc_rxlen;	/* Length of receive message */
73		uint8_t	cc_unbuf;
74		char	cc_txbuf[80];	/* Transmit buffer */
75		char	cc_rxbuf[80];	/* Receive buffer */
76	} cca_cc[64];
77};
78
79#ifdef _KERNEL
80extern	struct cca *cca;
81#endif
82