1 /* $OpenBSD: param.h,v 1.32 2013/03/25 17:46:24 deraadt Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department and Ralph Campbell. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #ifndef _MIPS64_PARAM_H_ 38 #define _MIPS64_PARAM_H_ 39 40 #ifdef _KERNEL 41 #include <machine/cpu.h> 42 #endif 43 44 #define PAGE_SIZE (1 << PAGE_SHIFT) 45 #define PAGE_MASK (PAGE_SIZE - 1) 46 #define PGSHIFT PAGE_SHIFT 47 #define PGOFSET PAGE_MASK 48 49 #define KERNBASE 0xffffffff80000000L /* start of kernel virtual */ 50 51 #ifdef _KERNEL 52 53 #define NBPG PAGE_SIZE 54 55 #define USPACE 16384 56 #define UPAGES (USPACE >> PAGE_SHIFT) 57 #if PAGE_SHIFT > 12 58 #define USPACE_ALIGN 0 59 #else 60 #define USPACE_ALIGN (2 * PAGE_SIZE) /* align to an even TLB boundary */ 61 #endif 62 63 #define NMBCLUSTERS 4096 /* map size, max cluster allocation */ 64 65 #ifndef MSGBUFSIZE 66 #if PAGE_SHIFT > 12 67 #define MSGBUFSIZE PAGE_SIZE 68 #else 69 #define MSGBUFSIZE 8192 70 #endif 71 #endif 72 73 /* 74 * Maximum size of the kernel malloc arena in PAGE_SIZE-sized 75 * logical pages. 76 */ 77 #define NKMEMPAGES_MAX_DEFAULT ((128 * 1024 * 1024) >> PAGE_SHIFT) 78 79 #ifndef _LOCORE 80 #define DELAY(n) delay(n) 81 void delay(int); 82 #endif 83 84 #endif /* _KERNEL */ 85 86 #endif /* _MIPS64_PARAM_H_ */ 87