1/*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
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.
16 *
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
27 * SUCH DAMAGE.
28 */
29
30#ifdef __arm__
31#include <arm/param.h>
32#else /* !__arm__ */
33
34#ifndef _MACHINE_PARAM_H_
35#define	_MACHINE_PARAM_H_
36
37/*
38 * Machine dependent constants for arm64.
39 */
40
41#include <machine/_align.h>
42
43#define	STACKALIGNBYTES	(16 - 1)
44#define	STACKALIGN(p)	((uint64_t)(p) & ~STACKALIGNBYTES)
45
46#define	__PCI_REROUTE_INTERRUPT
47
48#ifndef MACHINE
49#define	MACHINE		"arm64"
50#endif
51#ifndef MACHINE_ARCH
52#define	MACHINE_ARCH	"aarch64"
53#endif
54#ifndef MACHINE_ARCH32
55#define	MACHINE_ARCH32	"armv7"
56#endif
57
58#ifdef SMP
59#ifndef MAXCPU
60#define	MAXCPU		1024
61#endif
62#else
63#define	MAXCPU		1
64#endif
65
66#ifndef MAXMEMDOM
67#define	MAXMEMDOM	8
68#endif
69
70#define	ALIGNBYTES	_ALIGNBYTES
71#define	ALIGN(p)	_ALIGN(p)
72/*
73 * ALIGNED_POINTER is a boolean macro that checks whether an address
74 * is valid to fetch data elements of type t from on this architecture.
75 * This does not reflect the optimal alignment, just the possibility
76 * (within reasonable limits).
77 */
78#define	ALIGNED_POINTER(p, t)	((((u_long)(p)) & (sizeof(t) - 1)) == 0)
79
80/*
81 * CACHE_LINE_SIZE is the compile-time maximum cache line size for an
82 * architecture.  It should be used with appropriate caution.
83 */
84#define	CACHE_LINE_SHIFT	7
85#define	CACHE_LINE_SIZE		(1 << CACHE_LINE_SHIFT)
86
87#define	PAGE_SHIFT_4K	12
88#define	PAGE_SIZE_4K	(1 << PAGE_SHIFT_4K)
89
90#define	PAGE_SHIFT_16K	14
91#define	PAGE_SIZE_16K	(1 << PAGE_SHIFT_16K)
92
93#define	PAGE_SHIFT_64K	16
94#define	PAGE_SIZE_64K	(1 << PAGE_SHIFT_64K)
95
96#define	PAGE_SHIFT	PAGE_SHIFT_4K
97#define	PAGE_SIZE	(1 << PAGE_SHIFT)
98#define	PAGE_MASK	(PAGE_SIZE - 1)
99
100#define	MAXPAGESIZES	3		/* maximum number of supported page sizes */
101
102#ifndef KSTACK_PAGES
103#if defined(KASAN) || defined(KMSAN)
104#define	KSTACK_PAGES	6
105#else
106#define	KSTACK_PAGES	4	/* pages of kernel stack (with pcb) */
107#endif
108#endif
109
110#define	KSTACK_GUARD_PAGES	1	/* pages of kstack guard; 0 disables */
111#define	PCPU_PAGES		1
112
113#ifdef PERTHREAD_SSP
114#define	NO_PERTHREAD_SSP	__nostackprotector
115#else
116#define	NO_PERTHREAD_SSP
117#endif
118
119/*
120 * Mach derived conversion macros
121 */
122#define	round_page(x)		(((unsigned long)(x) + PAGE_MASK) & ~PAGE_MASK)
123#define	trunc_page(x)		((unsigned long)(x) & ~PAGE_MASK)
124
125#define	atop(x)			((unsigned long)(x) >> PAGE_SHIFT)
126#define	ptoa(x)			((unsigned long)(x) << PAGE_SHIFT)
127
128#define	arm64_btop(x)		((unsigned long)(x) >> PAGE_SHIFT)
129#define	arm64_ptob(x)		((unsigned long)(x) << PAGE_SHIFT)
130
131#define	pgtok(x)		((unsigned long)(x) * (PAGE_SIZE / 1024))
132
133#endif /* !_MACHINE_PARAM_H_ */
134
135#endif /* !__arm__ */
136