166 lines
5.9 KiB
C
166 lines
5.9 KiB
C
/* $NetBSD: pmap.h,v 1.8 2005/01/17 04:37:20 atatat Exp $ */
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/* $OpenBSD: pmap.h,v 1.14 2001/05/09 15:31:24 art Exp $ */
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/*
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* Copyright (c) 1998,1999 Michael Shalayeff
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* All rights reserved.
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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 Michael Shalayeff.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright 1996 1995 by Open Software Foundation, Inc.
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* All Rights Reserved
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*
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* Permission to use, copy, modify, and distribute this software and
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* its documentation for any purpose and without fee is hereby granted,
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* provided that the above copyright notice appears in all copies and
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* that both the copyright notice and this permission notice appear in
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* supporting documentation.
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*
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* OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE.
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*
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* IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
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* NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* Copyright (c) 1990,1993,1994 The University of Utah and
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* the Computer Systems Laboratory at the University of Utah (CSL).
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* All rights reserved.
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*
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* Permission to use, copy, modify and distribute this software is hereby
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* granted provided that (1) source code retains these copyright, permission,
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* and disclaimer notices, and (2) redistributions including binaries
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* reproduce the notices in supporting documentation, and (3) all advertising
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* materials mentioning features or use of this software display the following
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* acknowledgement: ``This product includes software developed by the
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* Computer Systems Laboratory at the University of Utah.''
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*
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* THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
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* IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
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* ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* CSL requests users of this software to return to csl-dist@cs.utah.edu any
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* improvements that they make and grant CSL redistribution rights.
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*
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* Utah $Hdr: pmap.h 1.24 94/12/14$
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* Author: Mike Hibler, Bob Wheeler, University of Utah CSL, 9/90
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*/
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/*
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* Pmap header for hppa.
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*/
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#ifndef _HPPA_PMAP_H_
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#define _HPPA_PMAP_H_
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#include <machine/pte.h>
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typedef
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struct pmap {
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TAILQ_ENTRY(pmap) pmap_list; /* pmap free list */
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struct simplelock pmap_lock; /* lock on map */
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int pmap_refcnt; /* reference count */
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pa_space_t pmap_space; /* space for this pmap */
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u_int pmap_pid; /* protection id for pmap */
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struct pmap_statistics pmap_stats; /* statistics */
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} *pmap_t;
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extern pmap_t kernel_pmap; /* The kernel's map */
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#ifdef _KERNEL
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#define PMAP_NC 0x100
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#define cache_align(x) (((x) + dcache_line_mask) & ~(dcache_line_mask))
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extern int dcache_line_mask;
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#define PMAP_STEAL_MEMORY /* we have some memory to steal */
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/*
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* according to the parisc manual aliased va's should be
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* different by high 12 bits only.
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*/
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#define PMAP_PREFER(o,h,s,td) do { \
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vaddr_t pmap_prefer_hint; \
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pmap_prefer_hint = (*(h) & HPPA_PGAMASK) | ((o) & HPPA_PGAOFF); \
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if (pmap_prefer_hint < *(h)) \
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pmap_prefer_hint += HPPA_PGALIAS; \
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*(h) = pmap_prefer_hint; \
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} while(0)
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#define pmap_kernel_va(VA) \
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(((VA) >= VM_MIN_KERNEL_ADDRESS) && ((VA) <= VM_MAX_KERNEL_ADDRESS))
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#define pmap_kernel() (kernel_pmap)
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#define pmap_resident_count(pmap) ((pmap)->pmap_stats.resident_count)
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#define pmap_wired_count(pmap) ((pmap)->pmap_stats.wired_count)
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#define pmap_reference(pmap) \
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do { if (pmap) { \
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simple_lock(&pmap->pmap_lock); \
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pmap->pmap_refcnt++; \
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simple_unlock(&pmap->pmap_lock); \
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} } while (0)
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#define pmap_collect(pmap)
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#define pmap_release(pmap)
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#define pmap_copy(dpmap,spmap,da,len,sa)
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#define pmap_update(p)
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void pmap_activate __P((struct lwp *));
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static __inline void
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pmap_deactivate(struct lwp *lwp)
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{
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}
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#define pmap_phys_address(x) ((x) << PGSHIFT)
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#define pmap_phys_to_frame(x) ((x) >> PGSHIFT)
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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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static __inline int
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pmap_prot(struct pmap *pmap, vm_prot_t prot)
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{
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extern u_int kern_prot[], user_prot[];
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return (pmap == kernel_pmap ? kern_prot : user_prot)[prot];
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}
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#define pmap_sid(pmap, va) \
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((((va) & 0xc0000000) != 0xc0000000) ? \
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(pmap)->pmap_space : HPPA_SID_KERNEL)
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#endif /* _KERNEL */
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#endif /* _HPPA_PMAP_H_ */
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