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 *	from: @(#)param.h	5.8 (Berkeley) 6/28/91
 30 */
 31
 32#ifdef __arm__
 33#include <arm/param.h>
 34#else /* !__arm__ */
 35
 36#ifndef _MACHINE_PARAM_H_
 37#define	_MACHINE_PARAM_H_
 38
 39/*
 40 * Machine dependent constants for arm64.
 41 */
 42
 43#include <machine/_align.h>
 44
 45#define	STACKALIGNBYTES	(16 - 1)
 46#define	STACKALIGN(p)	((uint64_t)(p) & ~STACKALIGNBYTES)
 47
 48#define	__PCI_REROUTE_INTERRUPT
 49
 50#ifndef MACHINE
 51#define	MACHINE		"arm64"
 52#endif
 53#ifndef MACHINE_ARCH
 54#define	MACHINE_ARCH	"aarch64"
 55#endif
 56#ifndef MACHINE_ARCH32
 57#define	MACHINE_ARCH32	"armv7"
 58#endif
 59
 60#ifdef SMP
 61#ifndef MAXCPU
 62#define	MAXCPU		1024
 63#endif
 64#else
 65#define	MAXCPU		1
 66#endif
 67
 68#ifndef MAXMEMDOM
 69#define	MAXMEMDOM	8
 70#endif
 71
 72#define	ALIGNBYTES	_ALIGNBYTES
 73#define	ALIGN(p)	_ALIGN(p)
 74/*
 75 * ALIGNED_POINTER is a boolean macro that checks whether an address
 76 * is valid to fetch data elements of type t from on this architecture.
 77 * This does not reflect the optimal alignment, just the possibility
 78 * (within reasonable limits).
 79 */
 80#define	ALIGNED_POINTER(p, t)	((((u_long)(p)) & (sizeof(t) - 1)) == 0)
 81
 82/*
 83 * CACHE_LINE_SIZE is the compile-time maximum cache line size for an
 84 * architecture.  It should be used with appropriate caution.
 85 */
 86#define	CACHE_LINE_SHIFT	7
 87#define	CACHE_LINE_SIZE		(1 << CACHE_LINE_SHIFT)
 88
 89#define	PAGE_SHIFT_4K	12
 90#define	PAGE_SIZE_4K	(1 << PAGE_SHIFT_4K)
 91
 92#define	PAGE_SHIFT_16K	14
 93#define	PAGE_SIZE_16K	(1 << PAGE_SHIFT_16K)
 94
 95#define	PAGE_SHIFT_64K	16
 96#define	PAGE_SIZE_64K	(1 << PAGE_SHIFT_64K)
 97
 98#define	PAGE_SHIFT	PAGE_SHIFT_4K
 99#define	PAGE_SIZE	(1 << PAGE_SHIFT)
100#define	PAGE_MASK	(PAGE_SIZE - 1)
101
102#define	MAXPAGESIZES	3		/* maximum number of supported page sizes */
103
104#ifndef KSTACK_PAGES
105#if defined(KASAN) || defined(KMSAN)
106#define	KSTACK_PAGES	6
107#else
108#define	KSTACK_PAGES	4	/* pages of kernel stack (with pcb) */
109#endif
110#endif
111
112#define	KSTACK_GUARD_PAGES	1	/* pages of kstack guard; 0 disables */
113#define	PCPU_PAGES		1
114
115#ifdef PERTHREAD_SSP
116#define	NO_PERTHREAD_SSP	__nostackprotector
117#else
118#define	NO_PERTHREAD_SSP
119#endif
120
121/*
122 * Mach derived conversion macros
123 */
124#define	round_page(x)		(((unsigned long)(x) + PAGE_MASK) & ~PAGE_MASK)
125#define	trunc_page(x)		((unsigned long)(x) & ~PAGE_MASK)
126
127#define	atop(x)			((unsigned long)(x) >> PAGE_SHIFT)
128#define	ptoa(x)			((unsigned long)(x) << PAGE_SHIFT)
129
130#define	arm64_btop(x)		((unsigned long)(x) >> PAGE_SHIFT)
131#define	arm64_ptob(x)		((unsigned long)(x) << PAGE_SHIFT)
132
133#define	pgtok(x)		((unsigned long)(x) * (PAGE_SIZE / 1024))
134
135#endif /* !_MACHINE_PARAM_H_ */
136
137#endif /* !__arm__ */