1 /* $OpenBSD: param.h,v 1.6 2018/09/14 13:58:20 claudio Exp $ */ 2 3 /*- 4 * Copyright (c) 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * William Jolitz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #ifndef _MACHINE_PARAM_H_ 36 #define _MACHINE_PARAM_H_ 37 38 #ifdef _KERNEL 39 #ifndef _LOCORE 40 #include <machine/cpu.h> 41 #endif 42 #endif 43 44 #define _MACHINE arm64 45 #define MACHINE "arm64" 46 #define _MACHINE_ARCH aarch64 47 #define MACHINE_ARCH "aarch64" 48 #define MID_MACHINE MID_ARM64 49 50 #define PAGE_SHIFT 12 51 #define PAGE_SIZE (1 << PAGE_SHIFT) 52 #define PAGE_MASK (PAGE_SIZE - 1) 53 54 #define KERNBASE 0xffffff8000000000ULL /* start of kernel virtual space */ 55 56 #ifdef _KERNEL 57 58 #define NBPG PAGE_SIZE /* bytes/page */ 59 #define PGSHIFT PAGE_SHIFT /* LOG2(PAGE_SIZE) */ 60 #define PGOFSET PAGE_MASK /* byte offset into page */ 61 62 #define UPAGES 5 /* pages of u-area */ 63 #define USPACE (UPAGES * PAGE_SIZE) /* total size of u-area */ 64 #define USPACE_ALIGN 0 /* u-area alignment 0-none */ 65 66 #define NMBCLUSTERS (64 * 1024) /* max cluster allocation */ 67 68 #ifndef MSGBUFSIZE 69 #define MSGBUFSIZE (16 * PAGE_SIZE) /* default message buffer size */ 70 #endif 71 72 /* 73 * Maximum size of the kernel malloc arena in PAGE_SIZE-sized 74 * logical pages. 75 */ 76 #define NKMEMPAGES_MAX_DEFAULT ((128 * 1024 * 1024) >> PAGE_SHIFT) 77 78 #define STACKALIGNBYTES (16 - 1) 79 #define STACKALIGN(p) ((u_long)(p) &~ STACKALIGNBYTES) 80 81 #define __HAVE_ACPI 82 #define __HAVE_FDT 83 84 #endif /* _KERNEL */ 85 86 #endif /* _MACHINE_PARAM_H_ */ 87