xref: /netbsd-src/sys/arch/alpha/pci/tsp_bus_io.c (revision 7663c1deeb1a1eb7d0b8d5910c6bd0391fee5692)
1 /* $NetBSD: tsp_bus_io.c,v 1.10 2023/12/04 00:32:10 thorpej Exp $ */
2 
3 /*-
4  * Copyright (c) 1999 by Ross Harvey.  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 by Ross Harvey.
17  * 4. The name of Ross Harvey may not be used to endorse or promote products
18  *    derived from this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY ROSS HARVEY ``AS IS'' AND ANY EXPRESS
21  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
22  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURP0SE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL ROSS HARVEY BE LIABLE FOR ANY
24  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  *
32  */
33 
34 #include <sys/cdefs.h>
35 
36 __KERNEL_RCSID(1, "$NetBSD: tsp_bus_io.c,v 1.10 2023/12/04 00:32:10 thorpej Exp $");
37 
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/syslog.h>
41 #include <sys/device.h>
42 
43 #include <sys/bus.h>
44 #include <machine/autoconf.h>
45 #include <machine/rpb.h>
46 
47 #include <alpha/pci/tsreg.h>
48 #include <alpha/pci/tsvar.h>
49 
50 #define tsp_bus_io() { Generate ctags(1) key. }
51 
52 #define	CHIP	tsp
53 
54 typedef struct tsp_config *TSPCON;
55 
56 #define CHIP_IO_ARENA(v)	(((TSPCON)(v))->pc_io_arena)
57 #define	CHIP_IO_ARENA_STORE(v)	(&(((TSPCON)(v))->pc_io_arena_store))
58 #define	CHIP_IO_BTAG_STORE(v)	(((TSPCON)(v))->pc_io_btag_store)
59 #define	CHIP_IO_BTAG_COUNT(v)	TSP_NBTS
60 
61 #define CHIP_IO_SYS_START(v)    (((TSPCON)(v))->pc_iobase | P_PCI_IO)
62 
63 /*
64  * Tsunami core logic appears on EV6.  We require at least EV56
65  * support for the assembler to emit BWX opcodes.
66  */
67 __asm(".arch ev6");
68 
69 #include <alpha/pci/pci_bwx_bus_io_chipdep.c>
70