87 lines
3.3 KiB
C
87 lines
3.3 KiB
C
/* $NetBSD: pmap.h,v 1.25 2002/09/22 07:53:48 chs Exp $ */
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/*-
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* Copyright (c) 2002 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 UCHIYAMA Yasushi.
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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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/*
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* NetBSD/sh3 pmap:
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* pmap.pm_ptp[512] ... 512 slot of page table page
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* page table page contains 1024 PTEs. (PAGE_SIZE / sizeof(pt_entry_t))
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* | PTP 11bit | PTOFSET 10bit | PGOFSET 12bit |
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*/
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#ifndef _SH3_PMAP_H_
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#define _SH3_PMAP_H_
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#include <sys/queue.h>
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#include <sh3/pte.h>
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#define PMAP_NEED_PROCWR
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#define PMAP_STEAL_MEMORY
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#define PMAP_GROWKERNEL
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#define __PMAP_PTP_N 512 /* # of page table page maps 2GB. */
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typedef struct pmap {
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pt_entry_t **pm_ptp;
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int pm_asid;
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int pm_refcnt;
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struct pmap_statistics pm_stats; /* pmap statistics */
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} *pmap_t;
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extern struct pmap __pmap_kernel;
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void pmap_bootstrap(void);
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void pmap_procwr(struct proc *, vaddr_t, size_t);
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#define pmap_kernel() (&__pmap_kernel)
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#define pmap_update(pmap) ((void)0)
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#define pmap_copy(dp,sp,d,l,s) ((void)0)
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#define pmap_collect(pmap) ((void)0)
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#define pmap_wired_count(pmap) ((pmap)->pm_stats.wired_count)
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#define pmap_resident_count(pmap) ((pmap)->pm_stats.resident_count)
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static __inline void
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pmap_remove_all(struct pmap *pmap)
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{
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/* Nothing. */
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}
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#define PMAP_MAP_POOLPAGE(pa) SH3_PHYS_TO_P1SEG((pa))
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#define PMAP_UNMAP_POOLPAGE(va) SH3_P1SEG_TO_PHYS((va))
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/* MD pmap utils. */
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pt_entry_t *__pmap_pte_lookup(pmap_t, vaddr_t);
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pt_entry_t *__pmap_kpte_lookup(vaddr_t);
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boolean_t __pmap_pte_load(pmap_t, vaddr_t, int);
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#endif /* !_SH3_PMAP_H_ */
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