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 * $FreeBSD$
39 */
40
41 #ifndef _ARM_INCLUDE_PARAM_H_
42 #define _ARM_INCLUDE_PARAM_H_
43
44 /*
45 * Machine dependent constants for StrongARM
46 */
47
48 #include <machine/_align.h>
49 #include <machine/acle-compat.h>
50
51 #define STACKALIGNBYTES (8 - 1)
52 #define STACKALIGN(p) ((u_int)(p) & ~STACKALIGNBYTES)
53
54 #define __PCI_REROUTE_INTERRUPT
55
56 #if __ARM_ARCH >= 6
57 #define _V6_SUFFIX "v6"
58 #else
59 #define _V6_SUFFIX ""
60 #endif
61
62 #ifdef __ARM_PCS_VFP
63 #define _HF_SUFFIX "hf"
64 #else
65 #define _HF_SUFFIX ""
66 #endif
67
68 #ifdef __ARM_BIG_ENDIAN
69 #define _EB_SUFFIX "eb"
70 #else
71 #define _EB_SUFFIX ""
72 #endif
73
74 #ifndef MACHINE
75 #define MACHINE "arm"
76 #endif
77 #ifndef MACHINE_ARCH
78 #define MACHINE_ARCH "arm" _V6_SUFFIX _HF_SUFFIX _EB_SUFFIX
79 #endif
80
81 #if defined(SMP) || defined(KLD_MODULE)
82 #ifndef MAXCPU
83 #define MAXCPU 4
84 #endif
85 #else
86 #define MAXCPU 1
87 #endif /* SMP || KLD_MODULE */
88
89 #ifndef MAXMEMDOM
90 #define MAXMEMDOM 1
91 #endif
92
93 #define ALIGNBYTES _ALIGNBYTES
94 #define ALIGN(p) _ALIGN(p)
95 /*
96 * ALIGNED_POINTER is a boolean macro that checks whether an address
97 * is valid to fetch data elements of type t from on this architecture.
98 * This does not reflect the optimal alignment, just the possibility
99 * (within reasonable limits).
100 */
101 #define ALIGNED_POINTER(p, t) ((((unsigned)(p)) & (sizeof(t)-1)) == 0)
102
103 /*
104 * CACHE_LINE_SIZE is the compile-time maximum cache line size for an
105 * architecture. It should be used with appropriate caution.
106 */
107 #define CACHE_LINE_SHIFT 6
108 #define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT)
109
110 #define PAGE_SHIFT 12
111 #define PAGE_SIZE (1 << PAGE_SHIFT) /* Page size */
112 #define PAGE_MASK (PAGE_SIZE - 1)
113 #define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t)))
114
115 #define PDR_SHIFT 20 /* log2(NBPDR) */
116 #define NBPDR (1 << PDR_SHIFT)
117 #define PDRMASK (NBPDR - 1)
118 #define NPDEPG (1 << (32 - PDR_SHIFT))
119
120 #define MAXPAGESIZES 2 /* maximum number of supported page sizes */
121
122 #ifndef KSTACK_PAGES
123 #define KSTACK_PAGES 2
124 #endif /* !KSTACK_PAGES */
125
126 #ifndef FPCONTEXTSIZE
127 #define FPCONTEXTSIZE (0x100)
128 #endif
129
130 #ifndef KSTACK_GUARD_PAGES
131 #define KSTACK_GUARD_PAGES 1
132 #endif /* !KSTACK_GUARD_PAGES */
133
134 #define USPACE_SVC_STACK_TOP (KSTACK_PAGES * PAGE_SIZE)
135
136 /*
137 * Mach derived conversion macros
138 */
139 #define trunc_page(x) ((x) & ~PAGE_MASK)
140 #define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK)
141 #define trunc_1mpage(x) ((unsigned)(x) & ~PDRMASK)
142 #define round_1mpage(x) ((((unsigned)(x)) + PDRMASK) & ~PDRMASK)
143
144 #define atop(x) ((unsigned)(x) >> PAGE_SHIFT)
145 #define ptoa(x) ((unsigned)(x) << PAGE_SHIFT)
146
147 #define arm32_btop(x) ((unsigned)(x) >> PAGE_SHIFT)
148 #define arm32_ptob(x) ((unsigned)(x) << PAGE_SHIFT)
149
150 #define pgtok(x) ((x) * (PAGE_SIZE / 1024))
151
152 #ifdef _KERNEL
153 #define NO_FUEWORD 1
154 #endif
155
156 #endif /* !_ARM_INCLUDE_PARAM_H_ */
Cache object: e05e38f11404b0311ead4e8aafbef8a1
|