1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * from: @(#)param.h 5.8 (Berkeley) 6/28/91 32 * $FreeBSD$ 33 */ 34 35 #ifndef _SPARC64_INCLUDE_PARAM_H_ 36 #define _SPARC64_INCLUDE_PARAM_H_ 37 38 /* 39 * Machine dependent constants for sparc64. 40 */ 41 42 #include <machine/_align.h> 43 44 #define __PCI_BAR_ZERO_VALID 45 46 #ifndef MACHINE 47 #define MACHINE "sparc64" 48 #endif 49 #ifndef MACHINE_ARCH 50 #define MACHINE_ARCH "sparc64" 51 #endif 52 #define MID_MACHINE MID_SPARC64 53 54 #if defined(SMP) || defined(KLD_MODULE) 55 #ifndef MAXCPU 56 #define MAXCPU 64 57 #endif 58 #else 59 #define MAXCPU 1 60 #endif /* SMP || KLD_MODULE */ 61 62 #ifndef MAXMEMDOM 63 #define MAXMEMDOM 1 64 #endif 65 66 #define INT_SHIFT 2 67 #define PTR_SHIFT 3 68 69 #define ALIGNBYTES _ALIGNBYTES 70 #define ALIGN(p) _ALIGN(p) 71 /* 72 * ALIGNED_POINTER is a boolean macro that checks whether an address 73 * is valid to fetch data elements of type t from on this architecture. 74 * This does not reflect the optimal alignment, just the possibility 75 * (within reasonable limits). 76 */ 77 #define ALIGNED_POINTER(p, t) ((((u_long)(p)) & (sizeof (t) - 1)) == 0) 78 79 /* 80 * CACHE_LINE_SIZE is the compile-time maximum cache line size for an 81 * architecture. It should be used with appropriate caution. 82 */ 83 #define CACHE_LINE_SHIFT 7 84 #define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT) 85 86 #define PAGE_SHIFT_8K 13 87 #define PAGE_SIZE_8K (1L<<PAGE_SHIFT_8K) 88 #define PAGE_MASK_8K (PAGE_SIZE_8K-1) 89 90 #define PAGE_SHIFT_64K 16 91 #define PAGE_SIZE_64K (1L<<PAGE_SHIFT_64K) 92 #define PAGE_MASK_64K (PAGE_SIZE_64K-1) 93 94 #define PAGE_SHIFT_512K 19 95 #define PAGE_SIZE_512K (1L<<PAGE_SHIFT_512K) 96 #define PAGE_MASK_512K (PAGE_SIZE_512K-1) 97 98 #define PAGE_SHIFT_4M 22 99 #define PAGE_SIZE_4M (1L<<PAGE_SHIFT_4M) 100 #define PAGE_MASK_4M (PAGE_SIZE_4M-1) 101 102 #define PAGE_SHIFT_32M 25 103 #define PAGE_SIZE_32M (1L<<PAGE_SHIFT_32M) 104 #define PAGE_MASK_32M (PAGE_SIZE_32M-1) 105 106 #define PAGE_SHIFT_256M 28 107 #define PAGE_SIZE_256M (1L<<PAGE_SHIFT_256M) 108 #define PAGE_MASK_256M (PAGE_SIZE_256M-1) 109 110 #define PAGE_SHIFT_MIN PAGE_SHIFT_8K 111 #define PAGE_SIZE_MIN PAGE_SIZE_8K 112 #define PAGE_MASK_MIN PAGE_MASK_8K 113 #define PAGE_SHIFT PAGE_SHIFT_8K /* LOG2(PAGE_SIZE) */ 114 #define PAGE_SIZE PAGE_SIZE_8K /* bytes/page */ 115 #define PAGE_MASK PAGE_MASK_8K 116 #define PAGE_SHIFT_MAX PAGE_SHIFT_4M 117 #define PAGE_SIZE_MAX PAGE_SIZE_4M 118 #define PAGE_MASK_MAX PAGE_MASK_4M 119 120 #define MAXPAGESIZES 1 /* maximum number of supported page sizes */ 121 122 #ifndef KSTACK_PAGES 123 #define KSTACK_PAGES 4 /* pages of kernel stack (with pcb) */ 124 #endif 125 #define KSTACK_GUARD_PAGES 1 /* pages of kstack guard; 0 disables */ 126 #define PCPU_PAGES 1 127 128 /* 129 * Ceiling on size of buffer cache (really only effects write queueing, 130 * the VM page cache is not effected), can be changed via 131 * the kern.maxbcache /boot/loader.conf variable. 132 */ 133 #ifndef VM_BCACHE_SIZE_MAX 134 #define VM_BCACHE_SIZE_MAX (400 * 1024 * 1024) 135 #endif 136 137 /* 138 * Mach derived conversion macros 139 */ 140 #define round_page(x) (((unsigned long)(x) + PAGE_MASK) & ~PAGE_MASK) 141 #define trunc_page(x) ((unsigned long)(x) & ~PAGE_MASK) 142 143 #define atop(x) ((unsigned long)(x) >> PAGE_SHIFT) 144 #define ptoa(x) ((unsigned long)(x) << PAGE_SHIFT) 145 146 #define sparc64_btop(x) ((unsigned long)(x) >> PAGE_SHIFT) 147 #define sparc64_ptob(x) ((unsigned long)(x) << PAGE_SHIFT) 148 149 #define pgtok(x) ((unsigned long)(x) * (PAGE_SIZE / 1024)) 150 151 #ifdef _KERNEL 152 #define NO_FUEWORD 1 153 #endif 154 155 #endif /* !_SPARC64_INCLUDE_PARAM_H_ */ 156