NetBSD/sys/arch/alpha/pci/cia_bwx_bus_io.c
thorpej d4d49905dd Add support for using BWX for PCI config space and PCI i/o and mem space
on the ALCOR2 and Pyxis.  BWX is enabled iff:
- It hasn't been disabled by the user (patch `cia_use_bwx' or build cia.o
  with the option "CIA_USE_BWX=0"),
- it's enabled in CIA_CSR_CNFG,
- we are running on an EV5-family processor,
- BWX is in the processor's capabilities mask.
1998-06-04 21:34:45 +00:00

54 lines
1.7 KiB
C

/* $NetBSD: cia_bwx_bus_io.c,v 1.1 1998/06/04 21:34:45 thorpej Exp $ */
/*
* Copyright (c) 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(1, "$NetBSD: cia_bwx_bus_io.c,v 1.1 1998/06/04 21:34:45 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/syslog.h>
#include <sys/device.h>
#include <vm/vm.h>
#include <machine/bus.h>
#include <alpha/pci/ciareg.h>
#include <alpha/pci/ciavar.h>
#define CHIP cia_bwx
#define CHIP_EX_MALLOC_SAFE(v) (((struct cia_config *)(v))->cc_mallocsafe)
#define CHIP_IO_EXTENT(v) (((struct cia_config *)(v))->cc_io_ex)
#define CHIP_IO_SYS_START(v) CIA_EV56_BWIO
#include <alpha/pci/pci_bwx_bus_io_chipdep.c>