/* $NetBSD: vmparam.h,v 1.22 2016/09/03 09:07:53 christos Exp $ */ /*- * Copyright (c) 2002 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by UCHIYAMA Yasushi. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ #ifndef _SH3_VMPARAM_H_ #define _SH3_VMPARAM_H_ #include <sys/queue.h> #define __USE_TOPDOWN_VM /* * We use 4K pages on the sh3/sh4. Override the PAGE_* definitions * to be compile-time constants. */ #define PAGE_SHIFT 12 #define PAGE_SIZE (1 << PAGE_SHIFT) #define PAGE_MASK (PAGE_SIZE - 1) /* Virtual address map. */ #define VM_MIN_ADDRESS ((vaddr_t)0) #define VM_MAXUSER_ADDRESS ((vaddr_t)0x7ffff000) #define VM_MAX_ADDRESS ((vaddr_t)0x7ffff000) #define VM_MIN_KERNEL_ADDRESS ((vaddr_t)0xc0000000) #define VM_MAX_KERNEL_ADDRESS ((vaddr_t)0xe0000000) /* top of stack */ #define USRSTACK VM_MAXUSER_ADDRESS /* Virtual memory resource limit. */ #define MAXTSIZ (64 * 1024 * 1024) /* max text size */ #ifndef MAXDSIZ #define MAXDSIZ (512 * 1024 * 1024) /* max data size */ #endif #ifndef MAXSSIZ #define MAXSSIZ (32 * 1024 * 1024) /* max stack size */ #endif /* initial data size limit */ #ifndef DFLDSIZ #define DFLDSIZ (128 * 1024 * 1024) #endif /* initial stack size limit */ #ifndef DFLSSIZ #define DFLSSIZ (2 * 1024 * 1024) #endif /* Size of user raw I/O map */ #ifndef USRIOSIZE #define USRIOSIZE (MAXBSIZE / PAGE_SIZE * 8) #endif #define VM_PHYS_SIZE (USRIOSIZE * PAGE_SIZE) /* Physical memory segments */ #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH #define sh3_round_page(x) ((((uint32_t)(x)) + PGOFSET) & ~PGOFSET) #define sh3_trunc_page(x) ((uint32_t)(x) & ~PGOFSET) #define sh3_btop(x) ((uint32_t)(x) >> PGSHIFT) #define sh3_ptob(x) ((uint32_t)(x) << PGSHIFT) #endif /* !_SH3_VMPARAM_H_ */ |