/* $NetBSD: vmparam.h,v 1.3 2001/11/23 18:16:10 thorpej Exp $ */ /* * Copyright (c) 2001 Wasabi Systems, Inc. * All rights reserved. * * Written by Jason R. Thorpe for Wasabi Systems, Inc. * * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed for the NetBSD Project by * Wasabi Systems, Inc. * 4. The name of Wasabi Systems, Inc. may not be used to endorse * or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC * 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. */ #ifndef _ARM_ARM32_VMPARAM_H_ #define _ARM_ARM32_VMPARAM_H_ #ifdef _KERNEL /* * Virtual Memory parameters common to all arm32 platforms. */ /* for pt_entry_t definition */ #include #define USRTEXT VM_MIN_ADDRESS #define USRSTACK VM_MAXUSER_ADDRESS /* * Note that MAXTSIZ can't be larger than 32M, otherwise the compiler * would have to be changed to not generate "bl" instructions. */ #define MAXTSIZ (16*1024*1024) /* max text size */ #ifndef DFLDSIZ #define DFLDSIZ (128*1024*1024) /* initial data size limit */ #endif #ifndef MAXDSIZ #define MAXDSIZ (512*1024*1024) /* max data size */ #endif #ifndef DFLSSIZ #define DFLSSIZ (2*1024*1024) /* initial stack size limit */ #endif #ifndef MAXSSIZ #define MAXSSIZ (8*1024*1024) /* max stack size */ #endif /* * Size of SysV shared memory map */ #ifndef SHMMAXPGS #define SHMMAXPGS 1024 #endif /* * While the ARM architecture defines Section mappings, large pages, * and small pages, the standard page size is (and will always be) 4K. */ #define PAGE_SHIFT 12 #define PAGE_SIZE (1 << PAGE_SHIFT) #define PAGE_MASK (PAGE_SIZE - 1) /* * Linear page table space: number of PTEs required to map the 4G address * space * size of each PTE. */ #define PAGE_TABLE_SPACE ((1 << (32 - PGSHIFT)) * sizeof(pt_entry_t)) /* Address where the page talbles are mapped. */ #define PAGE_TABLE_SPACE_START (KERNEL_SPACE_START - PAGE_TABLE_SPACE) /* * Mach derived constants */ #define VM_MIN_ADDRESS ((vaddr_t) 0x00001000) #define VM_MAXUSER_ADDRESS ((vaddr_t) (PAGE_TABLE_SPACE_START - \ UPAGES * NBPG)) #define VM_MAX_ADDRESS ((vaddr_t) (PAGE_TABLE_SPACE_START + \ (KERNEL_SPACE_START >> PGSHIFT) * \ sizeof(pt_entry_t))) #define VM_MIN_KERNEL_ADDRESS ((vaddr_t) KERNEL_TEXT_BASE) #define VM_MAXKERN_ADDRESS ((vaddr_t) KERNEL_VM_BASE + KERNEL_VM_SIZE) #define VM_MAX_KERNEL_ADDRESS ((vaddr_t) 0xffffffff) /* * define structure pmap_physseg: there is one of these structures * for each chunk of noncontig RAM you have. */ #define __HAVE_PMAP_PHYSSEG struct pmap_physseg { struct pv_head *pvhead; /* pv_entry array */ char *attrs; /* attrs array */ }; #endif /* _KERNEL */ #endif /* _ARM_ARM32_VMPARAM_H_ */