/* $OpenBSD: vmparam.h,v 1.35 2024/03/29 21:06:14 miod Exp $ */ /* $NetBSD: vmparam.h,v 1.18 2001/05/01 02:19:19 thorpej Exp $ */ /* * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This software was developed by the Computer Systems Engineering group * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and * contributed to Berkeley. * * All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Lawrence Berkeley Laboratory. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)vmparam.h 8.1 (Berkeley) 6/11/93 */ /* * Machine dependent constants for sun4u and sun4v UltraSPARC */ #ifndef VMPARAM_H #define VMPARAM_H #define USRSTACK 0xffffffffffffe000L /* * Virtual memory related constants, all in bytes */ /* * Since the compiler generates `call' instructions we can't * have more than 4GB in a single text segment. * * And since we only have a 40-bit address space, allow half * of that for data and the other half for stack. */ #ifndef MAXTSIZ #define MAXTSIZ (1L*1024*1024*1024) /* max text size */ #endif #ifndef DFLDSIZ #define DFLDSIZ (128L*1024*1024) /* initial data size limit */ #endif #ifndef MAXDSIZ #define MAXDSIZ (8L*1024*1024*1024) /* max data size */ #endif #ifndef BRKSIZ #define BRKSIZ MAXDSIZ /* heap gap size */ #endif #ifndef DFLSSIZ #define DFLSSIZ (2L*1024*1024) /* initial stack size limit */ #endif #ifndef MAXSSIZ #define MAXSSIZ (32L*1024*1024) /* max stack size */ #endif #define STACKGAP_RANDOM 256*1024 /* * Size of shared memory map */ #ifndef SHMMAXPGS #define SHMMAXPGS 4096 /* 32mb */ #endif /* * Size of User Raw I/O map */ #define USRIOSIZE 300 /* * Mach derived constants */ /* * User/kernel map constants. */ #define VM_MIN_ADDRESS ((vaddr_t)PAGE_SIZE) #define VM_MAX_ADDRESS ((vaddr_t)-1) #define VM_MAXUSER_ADDRESS ((vaddr_t)-PAGE_SIZE) #ifdef _KERNEL #define VM_MIN_STACK_ADDRESS ((vaddr_t)0xfffffe0000000000L) #endif /* map PIE into the first quarter of the address space before hole */ #define VM_PIE_MIN_ADDR PAGE_SIZE #define VM_PIE_MAX_ADDR 0x10000000000 #define VM_MIN_KERNEL_ADDRESS ((vaddr_t)KERNBASE) #define VM_MAX_KERNEL_ADDRESS ((vaddr_t)0x000007ffffffffffL) /* virtual sizes (bytes) for various kernel submaps */ #define VM_PHYS_SIZE (USRIOSIZE*PAGE_SIZE) #define VM_PHYSSEG_MAX 32 /* up to 32 segments */ #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH #define VM_PHYSSEG_NOADD /* can't add RAM after vm_mem_init */ #endif
