/* $NetBSD: mcbusvar.h,v 1.7 2012/02/06 02:14:14 matt Exp $ */
/*
* Copyright (c) 1998 by Matthew Jacob
* NASA AMES Research Center.
* 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 immediately at the beginning of the file, without modification,
* 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. 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*/
/*
* Soft definitions for the MCBUS main system
* bus found on AlphaServer 4100 systems.
*/
/*
* The structure used to attach devices to the MCbus.
*/
struct mcbus_dev_attach_args {
uint8_t ma_gid; /* GID of MCBUS (MCBUS #) */
uint8_t ma_mid; /* Module ID on MCBUS */
uint8_t ma_type; /* Module "type" */
uint8_t ma_configured; /* nonzero if configured */
};
#define MCBUS_GID_FROM_INSTANCE(unit) (7 - unit)
/*
* Bus-dependent structure for CPUs. This is dynamically allocated
* for each CPU on the MCbus, and glued into the cpu_softc as sc_busdep,
* if there is such a beast available. Otherwise, a single global version
* is used so that the MCPCIA configuration code can determine toads
* like module id and bcache size of the master CPU.
*/
struct mcbus_cpu_busdep {
uint8_t mcbus_cpu_mid; /* MCbus Module ID */
uint8_t mcbus_bcache; /* BCache on this CPU */
uint8_t mcbus_valid;
};
