xref: /netbsd-src/sys/arch/amiga/include/param.h (revision 656c43404f14ffc90f37099083503aaeafb776b8)
1 /*	$NetBSD: param.h,v 1.50 2015/11/12 12:01:53 phx Exp $	*/
2 
3 /*
4  * Copyright (c) 1988 University of Utah.
5  * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
6  * All rights reserved.
7  *
8  * This code is derived from software contributed to Berkeley by
9  * the Systems Programming Group of the University of Utah Computer
10  * Science Department.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in the
19  *    documentation and/or other materials provided with the distribution.
20  * 3. Neither the name of the University nor the names of its contributors
21  *    may be used to endorse or promote products derived from this software
22  *    without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  *
36  * from: Utah $Hdr: machparam.h 1.11 89/08/14$
37  *
38  *	@(#)param.h	7.8 (Berkeley) 6/28/91
39  */
40 
41 #ifndef	_MACHINE_PARAM_H_
42 #define	_MACHINE_PARAM_H_
43 
44 /*
45  * Machine dependent constants for amiga
46  */
47 #define	_MACHINE	amiga
48 #define	MACHINE		"amiga"
49 
50 #define	PGSHIFT		13		/* LOG2(NBPG) */
51 #define	KERNBASE	0x00000000	/* start of kernel virtual */
52 
53 #define	UPAGES		2		/* pages of u-area */
54 
55 #include <m68k/param.h>
56 
57 #define	NPTEPG		(NBPG/(sizeof (pt_entry_t)))
58 
59 /* We need the same btop macro in device drivers for m68k and powerpc */
60 #define MD_BTOP(pa)	m68k_btop(pa)
61 
62 /*
63  * Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized
64  * logical pages.
65  */
66 #define	NKMEMPAGES_MIN_DEFAULT	((8 * 1024 * 1024) >> PAGE_SHIFT)
67 #define	NKMEMPAGES_MAX_DEFAULT	((128 * 1024 * 1024) >> PAGE_SHIFT)
68 
69 #ifdef	_KERNEL
70 /*
71  * spl functions; all are normally done in-line
72  */
73 #include <machine/intr.h>
74 
75 /*
76  * point to the custom.intenar and custom.intenaw respectively.
77  */
78 extern volatile unsigned short *amiga_intena_read, *amiga_intena_write;
79 
80 #ifndef	_LOCORE
81 void delay(unsigned int);
82 #define	DELAY(x)	delay(x)
83 #endif	/* !_LOCORE */
84 #endif	/* _KERNEL */
85 
86 #endif	/* !_MACHINE_PARAM_H_ */
87