NetBSD/sys/arch/hp700/gsc/gscbusvar.h
fredette 94791afd65 No longer use BTLB entries to map the entire address spaces of I/O subsystems,
since BTLB entries can be scarce and very little of an I/O subsystem normally
needs to be mapped.

Instead, the pmap now allows mappings of I/O space to be entered with
pmap_kenter_pa.  bus_space mappings for small amounts of I/O space (as for
virtually all devices) are made this way, with BTLB entries still used for
large mappings for things like framebuffers.

This has led to more and cleaned-up uses of bus_space(9) and has caused
some autoconf cleanup.  Also, kgdb is now attached and connected before
autoconfiguration, which is much earlier than before.
2002-08-25 20:19:59 +00:00

64 lines
2.5 KiB
C

/* $NetBSD: gscbusvar.h,v 1.3 2002/08/25 20:20:00 fredette Exp $ */
/* $OpenBSD: gscbusvar.h,v 1.3 1999/08/16 02:48:39 mickey Exp $ */
/*
* Copyright (c) 1998 Michael Shalayeff
* 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 by Michael Shalayeff.
* 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.
*/
#include <hp700/hp700/intr.h>
struct gsc_attach_args {
struct confargs ga_ca;
#define ga_name ga_ca.ca_name
#define ga_iot ga_ca.ca_iot
#define ga_mod ga_ca.ca_mod
#define ga_type ga_ca.ca_type
#define ga_hpa ga_ca.ca_hpa
#define ga_dmatag ga_ca.ca_dmatag
#define ga_irq ga_ca.ca_irq
/*#define ga_pdc_iodc_read ga_ca.ca_pdc_iodc_read */
/* The interrupt register for this GSC bus. */
struct hp700_int_reg *ga_int_reg;
/* This fixes a module's attach arguments. */
void (*ga_fix_args) __P((void *, struct gsc_attach_args *));
void *ga_fix_args_cookie;
/* The SCSI target for the host adapter. */
int ga_scsi_target;
/* The address for the Ethernet adapter. */
u_int8_t ga_ether_address[6];
};
int gscprint __P((void *, const char *));