param.h revision 224232
1130561Sobrien/*- 2130561Sobrien * Copyright (c) 1990 The Regents of the University of California. 3130561Sobrien * All rights reserved. 4130561Sobrien * 5130561Sobrien * This code is derived from software contributed to Berkeley by 6130561Sobrien * William Jolitz. 7130561Sobrien * 8130561Sobrien * Redistribution and use in source and binary forms, with or without 9130561Sobrien * modification, are permitted provided that the following conditions 10130561Sobrien * are met: 11130561Sobrien * 1. Redistributions of source code must retain the above copyright 12130561Sobrien * notice, this list of conditions and the following disclaimer. 13130561Sobrien * 2. Redistributions in binary form must reproduce the above copyright 14130561Sobrien * notice, this list of conditions and the following disclaimer in the 15130561Sobrien * documentation and/or other materials provided with the distribution. 16130561Sobrien * 17130561Sobrien * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18130561Sobrien * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19130561Sobrien * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20130561Sobrien * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21130561Sobrien * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22130561Sobrien * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23130561Sobrien * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24130561Sobrien * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25130561Sobrien * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26130561Sobrien * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27130561Sobrien * SUCH DAMAGE. 28218822Sdim * 29130561Sobrien * from: @(#)param.h 5.8 (Berkeley) 6/28/91 30130561Sobrien * $FreeBSD: head/sys/sparc64/include/param.h 224232 2011-07-20 18:51:18Z marius $ 31130561Sobrien */ 32130561Sobrien 33130561Sobrien#ifndef _SPARC64_INCLUDE_PARAM_H_ 34130561Sobrien#define _SPARC64_INCLUDE_PARAM_H_ 35130561Sobrien 36130561Sobrien/* 37130561Sobrien * Machine dependent constants for sparc64. 38130561Sobrien */ 39130561Sobrien 40130561Sobrien#include <machine/_align.h> 41130561Sobrien 42130561Sobrien#define __PCI_BAR_ZERO_VALID 43130561Sobrien 44130561Sobrien#ifndef MACHINE 45130561Sobrien#define MACHINE "sparc64" 46130561Sobrien#endif 47130561Sobrien#ifndef MACHINE_ARCH 48130561Sobrien#define MACHINE_ARCH "sparc64" 49130561Sobrien#endif 50130561Sobrien#define MID_MACHINE MID_SPARC64 51130561Sobrien 52130561Sobrien#if defined(SMP) || defined(KLD_MODULE) 53130561Sobrien#ifndef MAXCPU 54130561Sobrien#define MAXCPU 64 55130561Sobrien#endif 56130561Sobrien#else 57130561Sobrien#define MAXCPU 1 58130561Sobrien#endif /* SMP || KLD_MODULE */ 59218822Sdim 60218822Sdim#define INT_SHIFT 2 61218822Sdim#define PTR_SHIFT 3 62218822Sdim 63130561Sobrien#define ALIGNBYTES _ALIGNBYTES 64130561Sobrien#define ALIGN(p) _ALIGN(p) 65130561Sobrien/* 66130561Sobrien * ALIGNED_POINTER is a boolean macro that checks whether an address 67130561Sobrien * is valid to fetch data elements of type t from on this architecture. 68130561Sobrien * This does not reflect the optimal alignment, just the possibility 69130561Sobrien * (within reasonable limits). 70130561Sobrien */ 71130561Sobrien#define ALIGNED_POINTER(p, t) ((((u_long)(p)) & (sizeof (t) - 1)) == 0) 72130561Sobrien 73130561Sobrien/* 74130561Sobrien * CACHE_LINE_SIZE is the compile-time maximum cache line size for an 75130561Sobrien * architecture. It should be used with appropriate caution. 76130561Sobrien */ 77130561Sobrien#define CACHE_LINE_SHIFT 7 78130561Sobrien#define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT) 79130561Sobrien 80130561Sobrien#define PAGE_SHIFT_8K 13 81130561Sobrien#define PAGE_SIZE_8K (1L<<PAGE_SHIFT_8K) 82130561Sobrien#define PAGE_MASK_8K (PAGE_SIZE_8K-1) 83130561Sobrien 84130561Sobrien#define PAGE_SHIFT_64K 16 85130561Sobrien#define PAGE_SIZE_64K (1L<<PAGE_SHIFT_64K) 86130561Sobrien#define PAGE_MASK_64K (PAGE_SIZE_64K-1) 87130561Sobrien 88130561Sobrien#define PAGE_SHIFT_512K 19 89130561Sobrien#define PAGE_SIZE_512K (1L<<PAGE_SHIFT_512K) 90130561Sobrien#define PAGE_MASK_512K (PAGE_SIZE_512K-1) 91130561Sobrien 92130561Sobrien#define PAGE_SHIFT_4M 22 93130561Sobrien#define PAGE_SIZE_4M (1L<<PAGE_SHIFT_4M) 94130561Sobrien#define PAGE_MASK_4M (PAGE_SIZE_4M-1) 95130561Sobrien 96130561Sobrien#define PAGE_SHIFT_32M 25 97130561Sobrien#define PAGE_SIZE_32M (1L<<PAGE_SHIFT_32M) 98130561Sobrien#define PAGE_MASK_32M (PAGE_SIZE_32M-1) 99130561Sobrien 100130561Sobrien#define PAGE_SHIFT_256M 28 101130561Sobrien#define PAGE_SIZE_256M (1L<<PAGE_SHIFT_256M) 102130561Sobrien#define PAGE_MASK_256M (PAGE_SIZE_256M-1) 103130561Sobrien 104130561Sobrien#define PAGE_SHIFT_MIN PAGE_SHIFT_8K 105130561Sobrien#define PAGE_SIZE_MIN PAGE_SIZE_8K 106130561Sobrien#define PAGE_MASK_MIN PAGE_MASK_8K 107130561Sobrien#define PAGE_SHIFT PAGE_SHIFT_8K /* LOG2(PAGE_SIZE) */ 108130561Sobrien#define PAGE_SIZE PAGE_SIZE_8K /* bytes/page */ 109130561Sobrien#define PAGE_MASK PAGE_MASK_8K 110130561Sobrien#define PAGE_SHIFT_MAX PAGE_SHIFT_4M 111130561Sobrien#define PAGE_SIZE_MAX PAGE_SIZE_4M 112130561Sobrien#define PAGE_MASK_MAX PAGE_MASK_4M 113130561Sobrien 114130561Sobrien#define MAXPAGESIZES 1 /* maximum number of supported page sizes */ 115130561Sobrien 116130561Sobrien#ifndef KSTACK_PAGES 117130561Sobrien#define KSTACK_PAGES 4 /* pages of kernel stack (with pcb) */ 118130561Sobrien#endif 119130561Sobrien#define KSTACK_GUARD_PAGES 1 /* pages of kstack guard; 0 disables */ 120130561Sobrien#define PCPU_PAGES 1 121130561Sobrien 122130561Sobrien/* 123130561Sobrien * Ceiling on size of buffer cache (really only effects write queueing, 124130561Sobrien * the VM page cache is not effected), can be changed via 125130561Sobrien * the kern.maxbcache /boot/loader.conf variable. 126130561Sobrien */ 127130561Sobrien#ifndef VM_BCACHE_SIZE_MAX 128130561Sobrien#define VM_BCACHE_SIZE_MAX (400 * 1024 * 1024) 129130561Sobrien#endif 130130561Sobrien 131130561Sobrien/* 132218822Sdim * Mach derived conversion macros 133218822Sdim */ 134130561Sobrien#define round_page(x) (((unsigned long)(x) + PAGE_MASK) & ~PAGE_MASK) 135130561Sobrien#define trunc_page(x) ((unsigned long)(x) & ~PAGE_MASK) 136130561Sobrien 137130561Sobrien#define atop(x) ((unsigned long)(x) >> PAGE_SHIFT) 138218822Sdim#define ptoa(x) ((unsigned long)(x) << PAGE_SHIFT) 139130561Sobrien 140218822Sdim#define sparc64_btop(x) ((unsigned long)(x) >> PAGE_SHIFT) 141130561Sobrien#define sparc64_ptob(x) ((unsigned long)(x) << PAGE_SHIFT) 142130561Sobrien 143130561Sobrien#define pgtok(x) ((unsigned long)(x) * (PAGE_SIZE / 1024)) 144218822Sdim 145130561Sobrien#endif /* !_SPARC64_INCLUDE_PARAM_H_ */ 146130561Sobrien