param.h (3987B) - Raw
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__ */