1280364Sandrew/*- 2280364Sandrew * Copyright (c) 1990 The Regents of the University of California. 3280364Sandrew * All rights reserved. 4280364Sandrew * 5280364Sandrew * This code is derived from software contributed to Berkeley by 6280364Sandrew * William Jolitz. 7280364Sandrew * 8280364Sandrew * Redistribution and use in source and binary forms, with or without 9280364Sandrew * modification, are permitted provided that the following conditions 10280364Sandrew * are met: 11280364Sandrew * 1. Redistributions of source code must retain the above copyright 12280364Sandrew * notice, this list of conditions and the following disclaimer. 13280364Sandrew * 2. Redistributions in binary form must reproduce the above copyright 14280364Sandrew * notice, this list of conditions and the following disclaimer in the 15280364Sandrew * documentation and/or other materials provided with the distribution. 16280364Sandrew * 17280364Sandrew * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18280364Sandrew * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19280364Sandrew * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20280364Sandrew * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21280364Sandrew * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22280364Sandrew * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23280364Sandrew * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24280364Sandrew * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25280364Sandrew * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26280364Sandrew * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27280364Sandrew * SUCH DAMAGE. 28280364Sandrew * 29280364Sandrew * from: @(#)param.h 5.8 (Berkeley) 6/28/91 30280364Sandrew * $FreeBSD$ 31280364Sandrew */ 32280364Sandrew 33280364Sandrew#ifndef _MACHINE_PARAM_H_ 34280364Sandrew#define _MACHINE_PARAM_H_ 35280364Sandrew 36280364Sandrew/* 37280364Sandrew * Machine dependent constants for arm64. 38280364Sandrew */ 39280364Sandrew 40280364Sandrew#include <machine/_align.h> 41280364Sandrew 42280364Sandrew#define STACKALIGNBYTES (16 - 1) 43280364Sandrew#define STACKALIGN(p) ((uint64_t)(p) & ~STACKALIGNBYTES) 44280364Sandrew 45296315Sbz#define __PCI_REROUTE_INTERRUPT 46296315Sbz 47280364Sandrew#ifndef MACHINE 48280364Sandrew#define MACHINE "arm64" 49280364Sandrew#endif 50280364Sandrew#ifndef MACHINE_ARCH 51280364Sandrew#define MACHINE_ARCH "aarch64" 52280364Sandrew#endif 53280364Sandrew 54280364Sandrew#if defined(SMP) || defined(KLD_MODULE) 55280364Sandrew#ifndef MAXCPU 56286922Szbb#define MAXCPU 96 57280364Sandrew#endif 58280364Sandrew#else 59280364Sandrew#define MAXCPU 1 60280364Sandrew#endif /* SMP || KLD_MODULE */ 61280364Sandrew 62280364Sandrew#ifndef MAXMEMDOM 63280364Sandrew#define MAXMEMDOM 1 64280364Sandrew#endif 65280364Sandrew 66280364Sandrew#define ALIGNBYTES _ALIGNBYTES 67280364Sandrew#define ALIGN(p) _ALIGN(p) 68280364Sandrew/* 69280364Sandrew * ALIGNED_POINTER is a boolean macro that checks whether an address 70280364Sandrew * is valid to fetch data elements of type t from on this architecture. 71280364Sandrew * This does not reflect the optimal alignment, just the possibility 72280364Sandrew * (within reasonable limits). 73280364Sandrew */ 74280364Sandrew#define ALIGNED_POINTER(p, t) ((((u_long)(p)) & (sizeof(t) - 1)) == 0) 75280364Sandrew 76280364Sandrew/* 77280364Sandrew * CACHE_LINE_SIZE is the compile-time maximum cache line size for an 78280364Sandrew * architecture. It should be used with appropriate caution. 79280364Sandrew */ 80280364Sandrew#define CACHE_LINE_SHIFT 6 81280364Sandrew#define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT) 82280364Sandrew 83280364Sandrew#define PAGE_SHIFT 12 84280364Sandrew#define PAGE_SIZE (1 << PAGE_SHIFT) /* Page size */ 85280364Sandrew#define PAGE_MASK (PAGE_SIZE - 1) 86280364Sandrew 87285213Szbb#define PAGE_SHIFT_16K 14 88285213Szbb#define PAGE_SIZE_16K (1 << PAGE_SHIFT_16K) 89285213Szbb#define PAGE_MASK_16K (PAGE_SIZE_16K - 1) 90285213Szbb 91280364Sandrew#define PAGE_SHIFT_64K 16 92280364Sandrew#define PAGE_SIZE_64K (1 << PAGE_SHIFT_64K) 93280364Sandrew#define PAGE_MASK_64K (PAGE_SIZE_64K - 1) 94280364Sandrew 95280364Sandrew#define MAXPAGESIZES 1 /* maximum number of supported page sizes */ 96280364Sandrew 97280364Sandrew#ifndef KSTACK_PAGES 98280364Sandrew#define KSTACK_PAGES 4 /* pages of kernel stack (with pcb) */ 99280364Sandrew#endif 100280364Sandrew 101280364Sandrew#define KSTACK_GUARD_PAGES 1 /* pages of kstack guard; 0 disables */ 102280364Sandrew#define PCPU_PAGES 1 103280364Sandrew 104280364Sandrew/* 105280364Sandrew * Ceiling on size of buffer cache (really only effects write queueing, 106280364Sandrew * the VM page cache is not effected), can be changed via 107280364Sandrew * the kern.maxbcache /boot/loader.conf variable. 108280364Sandrew */ 109280364Sandrew#ifndef VM_BCACHE_SIZE_MAX 110280364Sandrew#define VM_BCACHE_SIZE_MAX (400 * 1024 * 1024) 111280364Sandrew#endif 112280364Sandrew 113280364Sandrew/* 114280364Sandrew * Mach derived conversion macros 115280364Sandrew */ 116280364Sandrew#define round_page(x) (((unsigned long)(x) + PAGE_MASK) & ~PAGE_MASK) 117280364Sandrew#define trunc_page(x) ((unsigned long)(x) & ~PAGE_MASK) 118280364Sandrew 119280364Sandrew#define atop(x) ((unsigned long)(x) >> PAGE_SHIFT) 120280364Sandrew#define ptoa(x) ((unsigned long)(x) << PAGE_SHIFT) 121280364Sandrew 122280364Sandrew#define arm64_btop(x) ((unsigned long)(x) >> PAGE_SHIFT) 123280364Sandrew#define arm64_ptob(x) ((unsigned long)(x) << PAGE_SHIFT) 124280364Sandrew 125280364Sandrew#define pgtok(x) ((unsigned long)(x) * (PAGE_SIZE / 1024)) 126280364Sandrew 127280364Sandrew#endif /* !_MACHINE_PARAM_H_ */ 128