2 * Copyright (c) 1990 The Regents of the University of California.
5 * This code is derived from software contributed to Berkeley by
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * from: @(#)param.h 5.8 (Berkeley) 6/28/91
34 * Machine dependent constants for sparc64.
38 * Round p (pointer or byte index) up to a correctly-aligned value
39 * for all data types (int, long, ...). The result is unsigned int
40 * and must be cast to any desired pointer type.
43 #define _ALIGNBYTES 0xf
46 #define _ALIGN(p) (((u_long)(p) + _ALIGNBYTES) & ~_ALIGNBYTES)
49 #ifndef _NO_NAMESPACE_POLLUTION
51 #ifndef _MACHINE_PARAM_H_
52 #define _MACHINE_PARAM_H_
55 #define MACHINE "sun4v"
58 #define MACHINE_ARCH "sparc64"
60 #define MID_MACHINE MID_SPARC64
62 #if defined(SMP) || defined(KLD_MODULE)
71 #define ALIGNBYTES _ALIGNBYTES
72 #define ALIGN(p) _ALIGN(p)
74 #define PAGE_SHIFT_8K 13
75 #define PAGE_SIZE_8K (1L<<PAGE_SHIFT_8K)
76 #define PAGE_MASK_8K (PAGE_SIZE_8K-1)
78 #define PAGE_SHIFT_64K 16
79 #define PAGE_SIZE_64K (1L<<PAGE_SHIFT_64K)
80 #define PAGE_MASK_64K (PAGE_SIZE_64K-1)
82 #define PAGE_SHIFT_512K 19
83 #define PAGE_SIZE_512K (1L<<PAGE_SHIFT_512K)
84 #define PAGE_MASK_512K (PAGE_SIZE_512K-1)
86 #define PAGE_SHIFT_4M 22
87 #define PAGE_SIZE_4M (1L<<PAGE_SHIFT_4M)
88 #define PAGE_MASK_4M (PAGE_SIZE_4M-1)
90 #define PAGE_SHIFT_256M 28
91 #define PAGE_SIZE_256M (1L<<PAGE_SHIFT_256M)
92 #define PAGE_MASK_256M (PAGE_SIZE_256M-1)
95 #define PAGE_SHIFT_MIN PAGE_SHIFT_8K
96 #define PAGE_SIZE_MIN PAGE_SIZE_8K
97 #define PAGE_MASK_MIN PAGE_MASK_8K
98 #define PAGE_SHIFT PAGE_SHIFT_8K /* LOG2(PAGE_SIZE) */
99 #define PAGE_SIZE PAGE_SIZE_8K /* bytes/page */
100 #define PAGE_MASK PAGE_MASK_8K
101 #define PAGE_SHIFT_MAX PAGE_SHIFT_4M
102 #define PAGE_SIZE_MAX PAGE_SIZE_4M
103 #define PAGE_MASK_MAX PAGE_MASK_4M
106 #define KSTACK_PAGES 4 /* pages of kernel stack (with pcb) */
108 #define KSTACK_GUARD_PAGES 1 /* pages of kstack guard; 0 disables */
112 * Ceiling on size of buffer cache (really only effects write queueing,
113 * the VM page cache is not effected), can be changed via
114 * the kern.maxbcache /boot/loader.conf variable.
116 #ifndef VM_BCACHE_SIZE_MAX
117 #define VM_BCACHE_SIZE_MAX (400 * 1024 * 1024)
121 * Mach derived conversion macros
124 #define round_page(x) (((unsigned long)(x) + PAGE_MASK) & ~PAGE_MASK)
125 #define trunc_page(x) ((unsigned long)(x) & ~PAGE_MASK)
127 #define atop(x) ((unsigned long)(x) >> PAGE_SHIFT)
128 #define ptoa(x) ((unsigned long)(x) << PAGE_SHIFT)
130 #define sparc64_btop(x) ((unsigned long)(x) >> PAGE_SHIFT)
131 #define sparc64_ptob(x) ((unsigned long)(x) << PAGE_SHIFT)
133 #define pgtok(x) ((unsigned long)(x) * (PAGE_SIZE / 1024))
138 #endif /* !_MACHINE_PARAM_H_ */
139 #endif /* !_NO_NAMESPACE_POLLUTION */