1/* $OpenBSD: param.h,v 1.11 1998/08/30 22:05:35 millert Exp $ */
2
3/*-
4 * Copyright (c) 1988 University of Utah.
5 * Copyright (c) 1992, 1993
6 * The Regents of the University of California. 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 and Ralph Campbell.
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 * 4. 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 * from: @(#)param.h 8.1 (Berkeley) 6/10/93
38 * JNPR: param.h,v 1.6.2.1 2007/09/10 07:49:36 girish
39 * $FreeBSD: head/sys/mips/include/param.h 232449 2012-03-03 08:19:18Z jmallett $
40 */
41
42#ifndef _MIPS_INCLUDE_PARAM_H_
43#define _MIPS_INCLUDE_PARAM_H_
44
45#include <machine/_align.h>
46
47#include <sys/cdefs.h>
48#ifdef _KERNEL
49#ifndef _LOCORE
50#include <machine/cpu.h>
51#endif
52#endif
53
54#define __PCI_REROUTE_INTERRUPT
55
56#ifndef MACHINE
57#define MACHINE "mips"
58#endif
59#ifndef MACHINE_ARCH
60#if _BYTE_ORDER == _BIG_ENDIAN
61#ifdef __mips_n64
62#define MACHINE_ARCH "mips64eb"
63#ifndef MACHINE_ARCH32
64#define MACHINE_ARCH32 "mipseb"
65#endif
66#elif defined(__mips_n32)
67#define MACHINE_ARCH "mipsn32eb"
68#else
69#define MACHINE_ARCH "mipseb"
70#endif
71#else
72#ifdef __mips_n64
73#define MACHINE_ARCH "mips64el"
74#ifndef MACHINE_ARCH32
75#define MACHINE_ARCH32 "mipsel"
76#endif
77#elif defined(__mips_n32)
78#define MACHINE_ARCH "mipsn32el"
79#else
80#define MACHINE_ARCH "mipsel"
81#endif
82#endif
83#endif
84
85/*
86 * OBJFORMAT_NAMES is a comma-separated list of the object formats
87 * that are supported on the architecture.
88 */
89#define OBJFORMAT_NAMES "elf"
90#define OBJFORMAT_DEFAULT "elf"
91
92#define MID_MACHINE 0 /* None but has to be defined */
93
94#ifdef SMP
95#define MAXSMPCPU 32
96#ifndef MAXCPU
97#define MAXCPU MAXSMPCPU
98#endif
99#else
100#define MAXSMPCPU 1
101#define MAXCPU 1
102#endif
103
104/*
105 * Round p (pointer or byte index) up to a correctly-aligned value for all
106 * data types (int, long, ...). The result is u_int and must be cast to
107 * any desired pointer type.
108 */
109
110#define ALIGNBYTES _ALIGNBYTES
111#define ALIGN(p) _ALIGN(p)
112/*
113 * ALIGNED_POINTER is a boolean macro that checks whether an address
114 * is valid to fetch data elements of type t from on this architecture.
115 * This does not reflect the optimal alignment, just the possibility
116 * (within reasonable limits).
117 */
118#define ALIGNED_POINTER(p, t) ((((unsigned long)(p)) & (sizeof (t) - 1)) == 0)
119
120/*
121 * CACHE_LINE_SIZE is the compile-time maximum cache line size for an
122 * architecture. It should be used with appropriate caution.
123 */
124#define CACHE_LINE_SHIFT 6
125#define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT)
126
127#define PAGE_SHIFT 12 /* LOG2(PAGE_SIZE) */
128#define PAGE_SIZE (1<<PAGE_SHIFT) /* bytes/page */
129#define PAGE_MASK (PAGE_SIZE-1)
130
131#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t)))
132#define NPDEPG (PAGE_SIZE/(sizeof (pd_entry_t)))
133
134#if defined(__mips_n32) || defined(__mips_n64) /* PHYSADDR_64_BIT */
135#define NPTEPGSHIFT 9 /* LOG2(NPTEPG) */
136#else
137#define NPTEPGSHIFT 10 /* LOG2(NPTEPG) */
138#endif
139
140#ifdef __mips_n64
141#define NPDEPGSHIFT 9 /* LOG2(NPTEPG) */
142#define SEGSHIFT (PAGE_SHIFT + NPTEPGSHIFT + NPDEPGSHIFT)
143#define NBSEG (1ul << SEGSHIFT)
144#define PDRSHIFT (PAGE_SHIFT + NPTEPGSHIFT)
145#define PDRMASK ((1 << PDRSHIFT) - 1)
146#else
147#define NPDEPGSHIFT 10 /* LOG2(NPTEPG) */
148#define SEGSHIFT (PAGE_SHIFT + NPTEPGSHIFT)
149#define NBSEG (1 << SEGSHIFT) /* bytes/segment */
150#define PDRSHIFT SEGSHIFT /* alias for SEG in 32 bit */
151#define PDRMASK ((1 << PDRSHIFT) - 1)
152#endif
153#define NBPDR (1 << PDRSHIFT) /* bytes/pagedir */
154#define SEGMASK (NBSEG - 1) /* byte offset into segment */
155
156#define MAXPAGESIZES 1 /* max supported pagesizes */
157
158#define MAXDUMPPGS 1 /* xxx: why is this only one? */
159
160/*
161 * The kernel stack needs to be aligned on a (PAGE_SIZE * 2) boundary.
162 */
163#define KSTACK_PAGES 2 /* kernel stack */
164#define KSTACK_GUARD_PAGES 2 /* pages of kstack guard; 0 disables */
165
166#define UPAGES 2
167
168/* pages ("clicks") (4096 bytes) to disk blocks */
169#define ctod(x) ((x) << (PAGE_SHIFT - DEV_BSHIFT))
170#define dtoc(x) ((x) >> (PAGE_SHIFT - DEV_BSHIFT))
171
172/*
173 * Map a ``block device block'' to a file system block.
174 * This should be device dependent, and should use the bsize
175 * field from the disk label.
176 * For now though just use DEV_BSIZE.
177 */
178#define bdbtofsb(bn) ((bn) / (BLKDEV_IOSIZE/DEV_BSIZE))
179
180/*
181 * Mach derived conversion macros
182 */
183#define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK)
184#define trunc_page(x) ((x) & ~PAGE_MASK)
185
186#define atop(x) ((x) >> PAGE_SHIFT)
187#define ptoa(x) ((x) << PAGE_SHIFT)
188
189#define pgtok(x) ((x) * (PAGE_SIZE / 1024))
190
191#endif /* !_MIPS_INCLUDE_PARAM_H_ */
2
3/*-
4 * Copyright (c) 1988 University of Utah.
5 * Copyright (c) 1992, 1993
6 * The Regents of the University of California. 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 and Ralph Campbell.
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 * 4. 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 * from: @(#)param.h 8.1 (Berkeley) 6/10/93
38 * JNPR: param.h,v 1.6.2.1 2007/09/10 07:49:36 girish
39 * $FreeBSD: head/sys/mips/include/param.h 232449 2012-03-03 08:19:18Z jmallett $
40 */
41
42#ifndef _MIPS_INCLUDE_PARAM_H_
43#define _MIPS_INCLUDE_PARAM_H_
44
45#include <machine/_align.h>
46
47#include <sys/cdefs.h>
48#ifdef _KERNEL
49#ifndef _LOCORE
50#include <machine/cpu.h>
51#endif
52#endif
53
54#define __PCI_REROUTE_INTERRUPT
55
56#ifndef MACHINE
57#define MACHINE "mips"
58#endif
59#ifndef MACHINE_ARCH
60#if _BYTE_ORDER == _BIG_ENDIAN
61#ifdef __mips_n64
62#define MACHINE_ARCH "mips64eb"
63#ifndef MACHINE_ARCH32
64#define MACHINE_ARCH32 "mipseb"
65#endif
66#elif defined(__mips_n32)
67#define MACHINE_ARCH "mipsn32eb"
68#else
69#define MACHINE_ARCH "mipseb"
70#endif
71#else
72#ifdef __mips_n64
73#define MACHINE_ARCH "mips64el"
74#ifndef MACHINE_ARCH32
75#define MACHINE_ARCH32 "mipsel"
76#endif
77#elif defined(__mips_n32)
78#define MACHINE_ARCH "mipsn32el"
79#else
80#define MACHINE_ARCH "mipsel"
81#endif
82#endif
83#endif
84
85/*
86 * OBJFORMAT_NAMES is a comma-separated list of the object formats
87 * that are supported on the architecture.
88 */
89#define OBJFORMAT_NAMES "elf"
90#define OBJFORMAT_DEFAULT "elf"
91
92#define MID_MACHINE 0 /* None but has to be defined */
93
94#ifdef SMP
95#define MAXSMPCPU 32
96#ifndef MAXCPU
97#define MAXCPU MAXSMPCPU
98#endif
99#else
100#define MAXSMPCPU 1
101#define MAXCPU 1
102#endif
103
104/*
105 * Round p (pointer or byte index) up to a correctly-aligned value for all
106 * data types (int, long, ...). The result is u_int and must be cast to
107 * any desired pointer type.
108 */
109
110#define ALIGNBYTES _ALIGNBYTES
111#define ALIGN(p) _ALIGN(p)
112/*
113 * ALIGNED_POINTER is a boolean macro that checks whether an address
114 * is valid to fetch data elements of type t from on this architecture.
115 * This does not reflect the optimal alignment, just the possibility
116 * (within reasonable limits).
117 */
118#define ALIGNED_POINTER(p, t) ((((unsigned long)(p)) & (sizeof (t) - 1)) == 0)
119
120/*
121 * CACHE_LINE_SIZE is the compile-time maximum cache line size for an
122 * architecture. It should be used with appropriate caution.
123 */
124#define CACHE_LINE_SHIFT 6
125#define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT)
126
127#define PAGE_SHIFT 12 /* LOG2(PAGE_SIZE) */
128#define PAGE_SIZE (1<<PAGE_SHIFT) /* bytes/page */
129#define PAGE_MASK (PAGE_SIZE-1)
130
131#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t)))
132#define NPDEPG (PAGE_SIZE/(sizeof (pd_entry_t)))
133
134#if defined(__mips_n32) || defined(__mips_n64) /* PHYSADDR_64_BIT */
135#define NPTEPGSHIFT 9 /* LOG2(NPTEPG) */
136#else
137#define NPTEPGSHIFT 10 /* LOG2(NPTEPG) */
138#endif
139
140#ifdef __mips_n64
141#define NPDEPGSHIFT 9 /* LOG2(NPTEPG) */
142#define SEGSHIFT (PAGE_SHIFT + NPTEPGSHIFT + NPDEPGSHIFT)
143#define NBSEG (1ul << SEGSHIFT)
144#define PDRSHIFT (PAGE_SHIFT + NPTEPGSHIFT)
145#define PDRMASK ((1 << PDRSHIFT) - 1)
146#else
147#define NPDEPGSHIFT 10 /* LOG2(NPTEPG) */
148#define SEGSHIFT (PAGE_SHIFT + NPTEPGSHIFT)
149#define NBSEG (1 << SEGSHIFT) /* bytes/segment */
150#define PDRSHIFT SEGSHIFT /* alias for SEG in 32 bit */
151#define PDRMASK ((1 << PDRSHIFT) - 1)
152#endif
153#define NBPDR (1 << PDRSHIFT) /* bytes/pagedir */
154#define SEGMASK (NBSEG - 1) /* byte offset into segment */
155
156#define MAXPAGESIZES 1 /* max supported pagesizes */
157
158#define MAXDUMPPGS 1 /* xxx: why is this only one? */
159
160/*
161 * The kernel stack needs to be aligned on a (PAGE_SIZE * 2) boundary.
162 */
163#define KSTACK_PAGES 2 /* kernel stack */
164#define KSTACK_GUARD_PAGES 2 /* pages of kstack guard; 0 disables */
165
166#define UPAGES 2
167
168/* pages ("clicks") (4096 bytes) to disk blocks */
169#define ctod(x) ((x) << (PAGE_SHIFT - DEV_BSHIFT))
170#define dtoc(x) ((x) >> (PAGE_SHIFT - DEV_BSHIFT))
171
172/*
173 * Map a ``block device block'' to a file system block.
174 * This should be device dependent, and should use the bsize
175 * field from the disk label.
176 * For now though just use DEV_BSIZE.
177 */
178#define bdbtofsb(bn) ((bn) / (BLKDEV_IOSIZE/DEV_BSIZE))
179
180/*
181 * Mach derived conversion macros
182 */
183#define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK)
184#define trunc_page(x) ((x) & ~PAGE_MASK)
185
186#define atop(x) ((x) >> PAGE_SHIFT)
187#define ptoa(x) ((x) << PAGE_SHIFT)
188
189#define pgtok(x) ((x) * (PAGE_SIZE / 1024))
190
191#endif /* !_MIPS_INCLUDE_PARAM_H_ */