1 /*-
2 * Copyright (c) 2001 David E. O'Brien
3 * Copyright (c) 1990 The Regents of the University of California.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * William Jolitz.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the University of
20 * California, Berkeley and its contributors.
21 * 4. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 *
37 * from: @(#)param.h 5.8 (Berkeley) 6/28/91
38 * $FreeBSD: src/sys/arm/include/param.h,v 1.12 2008/03/27 05:03:25 jb Exp $
39 */
40
41 /*
42 * Machine dependent constants for StrongARM
43 */
44
45 /*
46 * Round p (pointer or byte index) up to a correctly-aligned value
47 * for all data types (int, long, ...). The result is unsigned int
48 * and must be cast to any desired pointer type.
49 */
50 #ifndef _ALIGNBYTES
51 #define _ALIGNBYTES (sizeof(int) - 1)
52 #endif
53 #ifndef _ALIGN
54 #define _ALIGN(p) (((unsigned)(p) + _ALIGNBYTES) & ~_ALIGNBYTES)
55 #endif
56
57 #define STACKALIGNBYTES (8 - 1)
58 #define STACKALIGN(p) ((u_int)(p) & ~STACKALIGNBYTES)
59
60 #ifndef _NO_NAMESPACE_POLLUTION
61
62 #define __PCI_REROUTE_INTERRUPT
63
64 #ifndef _MACHINE_PARAM_H_
65 #define _MACHINE_PARAM_H_
66
67 #ifndef MACHINE
68 #define MACHINE "arm"
69 #endif
70 #ifndef MACHINE_ARCH
71 #define MACHINE_ARCH "arm"
72 #endif
73 #define MID_MACHINE MID_ARM6
74
75 #if defined(SMP) || defined(KLD_MODULE)
76 #define MAXCPU 2
77 #else
78 #define MAXCPU 1
79 #endif /* SMP || KLD_MODULE */
80
81 #define ALIGNBYTES _ALIGNBYTES
82 #define ALIGN(p) _ALIGN(p)
83
84 #define PAGE_SHIFT 12
85 #define PAGE_SIZE (1 << PAGE_SHIFT) /* Page size */
86 #define PAGE_MASK (PAGE_SIZE - 1)
87 #define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t)))
88
89 #define PDR_SHIFT 20 /* log2(NBPDR) */
90 #define NBPDR (1 << PDR_SHIFT)
91 #define NPDEPG (1 << (32 - PDR_SHIFT))
92
93 #ifndef KSTACK_PAGES
94 #define KSTACK_PAGES 2
95 #endif /* !KSTACK_PAGES */
96
97 #ifndef FPCONTEXTSIZE
98 #define FPCONTEXTSIZE (0x100)
99 #endif
100
101 #ifndef KSTACK_GUARD_PAGES
102 #define KSTACK_GUARD_PAGES 1
103 #endif /* !KSTACK_GUARD_PAGES */
104
105 #define USPACE_SVC_STACK_TOP KSTACK_PAGES * PAGE_SIZE
106 #define USPACE_SVC_STACK_BOTTOM (USPACE_SVC_STACK_TOP - 0x1000)
107 #define USPACE_UNDEF_STACK_TOP (USPACE_SVC_STACK_BOTTOM - 0x10)
108 #define USPACE_UNDEF_STACK_BOTTOM (FPCONTEXTSIZE + 10)
109 /*
110 * Mach derived conversion macros
111 */
112 #define trunc_page(x) ((x) & ~PAGE_MASK)
113 #define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK)
114 #define trunc_4mpage(x) ((unsigned)(x) & ~PDRMASK)
115 #define round_4mpage(x) ((((unsigned)(x)) + PDRMASK) & ~PDRMASK)
116
117 #define atop(x) ((unsigned)(x) >> PAGE_SHIFT)
118 #define ptoa(x) ((unsigned)(x) << PAGE_SHIFT)
119
120 #define arm32_btop(x) ((unsigned)(x) >> PAGE_SHIFT)
121 #define arm32_ptob(x) ((unsigned)(x) << PAGE_SHIFT)
122
123 #define pgtok(x) ((x) * (PAGE_SIZE / 1024))
124
125 #endif /* !_MACHINE_PARAM_H_ */
126 #endif /* !_NO_NAMESPACE_POLLUTION */
127 Cache object: 9c4e61926bc11880a934220ecbc83867
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