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