/* $NetBSD: vmparam.h,v 1.20 2018/08/03 11:18:22 reinoud Exp $ */
/*-
* Copyright (c) 2007 Jared D. McNeill <
[email protected]>
* All rights reserved.
*
* 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 _ARCH_USERMODE_INCLUDE_VMPARAM_H
#define _ARCH_USERMODE_INCLUDE_VMPARAM_H
#include <machine/pmap.h>
#include "opt_memsize.h"
#define __USE_TOPDOWN_VM
extern paddr_t kmem_k_start, kmem_k_end;
extern paddr_t kmem_kvm_start, kmem_kvm_end;
extern paddr_t kmem_kvm_cur_end;
extern paddr_t kmem_user_start, kmem_user_end;
#define VM_MIN_ADDRESS kmem_user_start
#define VM_MAX_ADDRESS kmem_user_end
#define VM_MAXUSER_ADDRESS kmem_user_end
#define VM_MIN_KERNEL_ADDRESS kmem_kvm_start
#define VM_MAX_KERNEL_ADDRESS kmem_k_end
#define VM_PHYSSEG_STRAT VM_PSTRAT_BIGFIRST
#define VM_PHYSSEG_MAX 1
#define VM_NFREELIST 1
#define VM_FREELIST_DEFAULT 0
#define USRSTACK VM_MAXUSER_ADDRESS
/*
* When an architecture has little KVA then override the default pager_map
* size in its block by limiting it like this:
*
* #define PAGER_MAP_DEFAULT_SIZE (8 * 1024 * 1024)
*/
#if defined(__i386__)
#define PAGE_SHIFT 12
#define PAGE_SIZE (1 << PAGE_SHIFT)
#define PAGE_MASK (PAGE_SIZE - 1)
#define MAXSSIZ (64 * 1024 * 1024)
#define MAXTSIZ (64 * 1024 * 1024)
#define MAXDSIZ (3U * 1024 * 1024 * 1024)
#define DFLSSIZ (2 * 1024 * 1024)
#define DFLDSIZ (256 * 1024 * 1024)
#elif defined(__x86_64__)
#define PAGE_SHIFT 12
#define PAGE_SIZE (1 << PAGE_SHIFT)
#define PAGE_MASK (PAGE_SIZE - 1)
#define MAXSSIZ (128 * 1024 * 1024)
#define MAXTSIZ (64 * 1024 * 1024)
#define MAXDSIZ (8L * 1024 * 1024 * 1024)
#define DFLSSIZ (4 * 1024 * 1024)
#define DFLDSIZ (256 * 1024 * 1024)
#elif defined(__arm__)
#define PAGE_SHIFT 12
#define PAGE_SIZE (1 << PAGE_SHIFT)
#define PAGE_MASK (PAGE_SIZE - 1)
#define MAXSSIZ (64 * 1024 * 1024)
#define MAXTSIZ (64 * 1024 * 1024)
#define MAXDSIZ (3U * 1024 * 1024 * 1024)
#define DFLSSIZ (2 * 1024 * 1024)
#define DFLDSIZ (256 * 1024 * 1024)
#else
#error "platform not supported"
#endif
#endif /* !_ARCH_USERMODE_INCLUDE_VMPARAM_H */
