206 lines
7.1 KiB
C
206 lines
7.1 KiB
C
/* $NetBSD: vmparam.h,v 1.6 2003/04/02 07:36:03 thorpej Exp $ */
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/*
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* Copyright 2002 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Steve C. Woodford for Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Matt Thomas <matt@3am-softwre.com> of Allegro Networks, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SH5_VMPARAM_H
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#define _SH5_VMPARAM_H
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/*
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* SH5 VM contants
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*/
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#include <sys/queue.h>
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/*
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* Virtual Memory constants.
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*
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* The kernel always occupies the top 1GB of virtual address space,
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* regardless of whether it's running in 32- or 64-bit mode.
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*
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* User VM space stretches to fill what's left.
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*/
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/*
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* We use 4K pages on the sh5. Override the PAGE_* definitions
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* to be compile-time constants.
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*/
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#define PAGE_SHIFT 12
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#define PAGE_SIZE (1 << PAGE_SHIFT)
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#define PAGE_MASK (PAGE_SIZE - 1)
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#ifdef _LP64
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#define VM_MIN_KERNEL_ADDRESS (0xffffffffe0000000UL)
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#define VM_MAX_KERNEL_ADDRESS (0xfffffffffffff000UL)
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#else
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#define VM_MIN_KERNEL_ADDRESS (0xe0000000UL)
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#define VM_MAX_KERNEL_ADDRESS (0xfffff000UL)
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#endif
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#define VM_MIN_ADDRESS (0)
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#ifdef _LP64
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#define VM_MAXUSER_ADDRESS (0xffffffffc0000000UL - PAGE_SIZE)
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#else
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#define VM_MAXUSER_ADDRESS (0xc0000000UL - PAGE_SIZE)
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#endif
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#define VM_MAX_ADDRESS VM_MAXUSER_ADDRESS
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/*
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* USRSTACK is the top of user stack.
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*/
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#define USRSTACK VM_MAXUSER_ADDRESS
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#define USRSTACK32 USRSTACK
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/* Virtual memory resoruce limit. */
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#define MAXTSIZ (64 * 1024 * 1024) /* max text size */
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#ifndef MAXDSIZ
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#define MAXDSIZ (512 * 1024 * 1024) /* max data size */
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#endif
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#ifndef MAXSSIZ
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#define MAXSSIZ (32 * 1024 * 1024) /* max stack size */
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#endif
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/* initial data size limit */
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#ifndef DFLDSIZ
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#define DFLDSIZ (128 * 1024 * 1024)
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#endif
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/* initial stack size limit */
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#ifndef DFLSSIZ
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#define DFLSSIZ (4 * 1024 * 1024)
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#endif
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/*
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* Size of shared memory map
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*/
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#ifndef SHMMAXPGS
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#define SHMMAXPGS 1024
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#endif
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/* Size of user raw I/O map */
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#ifndef USRIOSIZE
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#define USRIOSIZE (MAXBSIZE / PAGE_SIZE * 8)
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#endif
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#define VM_PHYS_SIZE (USRIOSIZE * PAGE_SIZE)
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/*
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* Physical memory segments
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* Alloc port-specific vmparam.h to override
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*/
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#ifndef VM_PHYSSEG_MAX
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#define VM_PHYSSEG_MAX 1
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#endif
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#ifndef VM_PHYSSEG_STRAT
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#define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH
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#endif
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#ifndef VM_PHYSSEG_NOADD
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#define VM_PHYSSEG_NOADD
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#endif
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#ifndef VM_NFREELIST
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#define VM_NFREELIST 1
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#define VM_FREELIST_DEFAULT 0
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#endif
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#ifndef _LP64
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#define sh5_round_page(x) ((((u_int32_t)(x)) + PGOFSET) & ~PGOFSET)
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#define sh5_trunc_page(x) ((u_int32_t)(x) & ~PGOFSET)
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#define sh5_page_offset(x) ((u_int32_t)(x) & PGOFSET)
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#define sh5_btop(x) ((u_int32_t)(x) >> PGSHIFT)
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#define sh5_ptob(x) ((u_int32_t)(x) << PGSHIFT)
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#else
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#define sh5_round_page(x) ((((u_int64_t)(x)) + PGOFSET) & ~PGOFSET)
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#define sh5_trunc_page(x) ((u_int64_t)(x) & ~PGOFSET)
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#define sh5_page_offset(x) ((u_int64_t)(x) & PGOFSET)
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#define sh5_btop(x) ((u_int64_t)(x) >> PGSHIFT)
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#define sh5_ptob(x) ((u_int64_t)(x) << PGSHIFT)
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#endif
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/* pmap-specific data store in the vm_page structure. */
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#define __HAVE_VM_PAGE_MD
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#ifndef _LOCORE
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LIST_HEAD(pvo_head, pvo_entry);
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struct vm_page_md {
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struct pvo_head mdpg_pvoh;
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unsigned int mdpg_attrs;
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};
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#define VM_MDPAGE_INIT(pg) \
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do { \
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LIST_INIT(&(pg)->mdpage.mdpg_pvoh); \
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(pg)->mdpage.mdpg_attrs = 0; \
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} while (/*CONSTCOND*/0)
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#endif /* _LOCORE */
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#endif /* _SH5_VMPARAM_H */
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