master
1/*-
2 * SPDX-License-Identifier: BSD-4-Clause
3 *
4 * Copyright (c) 2001 David E. O'Brien
5 * Copyright (c) 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 * William Jolitz.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the University of
22 * California, Berkeley and its contributors.
23 * 4. Neither the name of the University nor the names of its contributors
24 * may be used to endorse or promote products derived from this software
25 * without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 *
39 * from: @(#)param.h 5.8 (Berkeley) 6/28/91
40 */
41
42#ifndef _POWERPC_INCLUDE_PARAM_H_
43#define _POWERPC_INCLUDE_PARAM_H_
44
45/*
46 * Machine dependent constants for PowerPC
47 */
48
49#include <machine/_align.h>
50
51/* Needed to display interrupts on OFW PCI */
52#define __PCI_REROUTE_INTERRUPT
53
54#ifndef MACHINE
55#define MACHINE "powerpc"
56#endif
57#ifndef MACHINE_ARCH
58#ifdef __powerpc64__
59#if defined(__LITTLE_ENDIAN__)
60#define MACHINE_ARCH "powerpc64le"
61#else
62#define MACHINE_ARCH "powerpc64"
63#endif
64#else
65#ifdef __SPE__
66#define MACHINE_ARCH "powerpcspe"
67#else
68#define MACHINE_ARCH "powerpc"
69#endif
70#endif
71#endif
72#define MID_MACHINE MID_POWERPC
73#ifdef __powerpc64__
74#ifndef MACHINE_ARCH32
75#define MACHINE_ARCH32 "powerpc"
76#endif
77#endif
78
79#ifdef SMP
80#ifndef MAXCPU
81#define MAXCPU 256
82#endif
83#else
84#define MAXCPU 1
85#endif
86
87#ifndef MAXMEMDOM
88#define MAXMEMDOM 8
89#endif
90
91#define ALIGNBYTES _ALIGNBYTES
92#define ALIGN(p) _ALIGN(p)
93/*
94 * ALIGNED_POINTER is a boolean macro that checks whether an address
95 * is valid to fetch data elements of type t from on this architecture.
96 * This does not reflect the optimal alignment, just the possibility
97 * (within reasonable limits).
98 */
99#define ALIGNED_POINTER(p, t) ((((uintptr_t)(p)) & (sizeof (t) - 1)) == 0)
100
101/*
102 * CACHE_LINE_SIZE is the compile-time maximum cache line size for an
103 * architecture. It should be used with appropriate caution.
104 */
105#define CACHE_LINE_SHIFT 7
106#define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT)
107
108#define PAGE_SHIFT 12
109#define PAGE_SIZE (1 << PAGE_SHIFT) /* Page size */
110#define PAGE_MASK (PAGE_SIZE - 1)
111#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t)))
112#define NPDEPG (PAGE_SIZE/(sizeof (pt_entry_t)))
113
114#define L1_PAGE_SIZE_SHIFT 39
115#define L1_PAGE_SIZE (1UL<<L1_PAGE_SIZE_SHIFT)
116#define L1_PAGE_MASK (L1_PAGE_SIZE-1)
117
118#define L2_PAGE_SIZE_SHIFT 30
119#define L2_PAGE_SIZE (1UL<<L2_PAGE_SIZE_SHIFT)
120#define L2_PAGE_MASK (L2_PAGE_SIZE-1)
121
122#define L3_PAGE_SIZE_SHIFT 21
123#define L3_PAGE_SIZE (1UL<<L3_PAGE_SIZE_SHIFT)
124#define L3_PAGE_MASK (L3_PAGE_SIZE-1)
125
126#define MAXPAGESIZES 3 /* maximum number of supported page sizes */
127
128#define RELOCATABLE_KERNEL 1 /* kernel may relocate during startup */
129
130#ifndef KSTACK_PAGES
131#ifdef __powerpc64__
132#define KSTACK_PAGES 12 /* includes pcb */
133#else
134#define KSTACK_PAGES 4 /* includes pcb */
135#endif
136#endif
137#define KSTACK_GUARD_PAGES 1 /* pages of kstack guard; 0 disables */
138#define USPACE (kstack_pages * PAGE_SIZE) /* total size of pcb */
139
140#define COPYFAULT 0x1
141#define FUSUFAULT 0x2
142
143/*
144 * Mach derived conversion macros
145 */
146#define trunc_page(x) ((x) & ~(PAGE_MASK))
147#define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK)
148#define trunc_2mpage(x) ((unsigned long)(x) & ~L3_PAGE_MASK)
149#define round_2mpage(x) ((((unsigned long)(x)) + L3_PAGE_MASK) & ~L3_PAGE_MASK)
150#define trunc_1gpage(x) ((unsigned long)(x) & ~L2_PAGE_MASK)
151
152#define atop(x) ((x) >> PAGE_SHIFT)
153#define ptoa(x) ((x) << PAGE_SHIFT)
154
155#define powerpc_btop(x) ((x) >> PAGE_SHIFT)
156#define powerpc_ptob(x) ((x) << PAGE_SHIFT)
157
158#define pgtok(x) ((x) * (PAGE_SIZE / 1024UL))
159
160#define btoc(x) ((vm_offset_t)(((x)+PAGE_MASK)>>PAGE_SHIFT))
161
162#endif /* !_POWERPC_INCLUDE_PARAM_H_ */