xref: /netbsd-src/sys/arch/alpha/pci/cia_bwx_bus_io.c (revision 95d875fb90b1458e4f1de6950286ddcd6644bc61)
1 /* $NetBSD: cia_bwx_bus_io.c,v 1.2 1999/12/02 19:43:25 thorpej Exp $ */
2 
3 /*
4  * Copyright (c) 1996 Carnegie-Mellon University.
5  * All rights reserved.
6  *
7  * Author: Chris G. Demetriou
8  *
9  * Permission to use, copy, modify and distribute this software and
10  * its documentation is hereby granted, provided that both the copyright
11  * notice and this permission notice appear in all copies of the
12  * software, derivative works or modified versions, and any portions
13  * thereof, and that both notices appear in supporting documentation.
14  *
15  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
16  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
17  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
18  *
19  * Carnegie Mellon requests users of this software to return to
20  *
21  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
22  *  School of Computer Science
23  *  Carnegie Mellon University
24  *  Pittsburgh PA 15213-3890
25  *
26  * any improvements or extensions that they make and grant Carnegie the
27  * rights to redistribute these changes.
28  */
29 
30 #include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
31 
32 __KERNEL_RCSID(1, "$NetBSD: cia_bwx_bus_io.c,v 1.2 1999/12/02 19:43:25 thorpej Exp $");
33 
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/malloc.h>
37 #include <sys/syslog.h>
38 #include <sys/device.h>
39 #include <vm/vm.h>
40 
41 #include <machine/bus.h>
42 
43 #include <alpha/pci/ciareg.h>
44 #include <alpha/pci/ciavar.h>
45 
46 #define	CHIP		cia_bwx
47 
48 #define	CHIP_EX_MALLOC_SAFE(v)	(((struct cia_config *)(v))->cc_mallocsafe)
49 #define	CHIP_IO_EXTENT(v)	(((struct cia_config *)(v))->cc_io_ex)
50 
51 #define	CHIP_IO_SYS_START(v)	CIA_EV56_BWIO
52 
53 /*
54  * CIA core logic with BWX enabled appears on EV56 and PCA56.  We
55  * require at least EV56 support for the assembler to emit BWX opcodes.
56  */
57 __asm(".arch ev56");
58 
59 #include <alpha/pci/pci_bwx_bus_io_chipdep.c>
60