NetBSD/sys/arch/hppa/include/pmap.h

154 lines
5.7 KiB
C

/* $NetBSD: pmap.h,v 1.3 2002/09/22 07:53:42 chs Exp $ */
/* $OpenBSD: pmap.h,v 1.14 2001/05/09 15:31:24 art Exp $ */
/*
* Copyright (c) 1998,1999 Michael Shalayeff
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Michael Shalayeff.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
/*
* Copyright 1996 1995 by Open Software Foundation, Inc.
* All Rights Reserved
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appears in all copies and
* that both the copyright notice and this permission notice appear in
* supporting documentation.
*
* OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE.
*
* IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
* NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* Copyright (c) 1990,1993,1994 The University of Utah and
* the Computer Systems Laboratory at the University of Utah (CSL).
* All rights reserved.
*
* Permission to use, copy, modify and distribute this software is hereby
* granted provided that (1) source code retains these copyright, permission,
* and disclaimer notices, and (2) redistributions including binaries
* reproduce the notices in supporting documentation, and (3) all advertising
* materials mentioning features or use of this software display the following
* acknowledgement: ``This product includes software developed by the
* Computer Systems Laboratory at the University of Utah.''
*
* THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
* IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
* ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* CSL requests users of this software to return to csl-dist@cs.utah.edu any
* improvements that they make and grant CSL redistribution rights.
*
* Utah $Hdr: pmap.h 1.24 94/12/14$
* Author: Mike Hibler, Bob Wheeler, University of Utah CSL, 9/90
*/
/*
* Pmap header for hppa.
*/
#ifndef _HPPA_PMAP_H_
#define _HPPA_PMAP_H_
#include <machine/pte.h>
typedef
struct pmap {
TAILQ_ENTRY(pmap) pmap_list; /* pmap free list */
struct simplelock pmap_lock; /* lock on map */
int pmap_refcnt; /* reference count */
pa_space_t pmap_space; /* space for this pmap */
u_int pmap_pid; /* protection id for pmap */
struct pmap_statistics pmap_stats; /* statistics */
} *pmap_t;
extern pmap_t kernel_pmap; /* The kernel's map */
#ifdef _KERNEL
#define cache_align(x) (((x) + dcache_line_mask) & ~(dcache_line_mask))
extern int dcache_line_mask;
#define PMAP_STEAL_MEMORY /* we have some memory to steal */
/*
* according to the parisc manual aliased va's should be
* different by high 12 bits only.
*/
#define PMAP_PREFER(o,h) do { \
vaddr_t pmap_prefer_hint; \
pmap_prefer_hint = (*(h) & HPPA_PGAMASK) | ((o) & HPPA_PGAOFF); \
if (pmap_prefer_hint < *(h)) \
pmap_prefer_hint += HPPA_PGALIAS; \
*(h) = pmap_prefer_hint; \
} while(0)
#define pmap_kernel_va(VA) \
(((VA) >= VM_MIN_KERNEL_ADDRESS) && ((VA) <= VM_MAX_KERNEL_ADDRESS))
#define pmap_kernel() (kernel_pmap)
#define pmap_resident_count(pmap) ((pmap)->pmap_stats.resident_count)
#define pmap_wired_count(pmap) ((pmap)->pmap_stats.wired_count)
#define pmap_reference(pmap) \
do { if (pmap) { \
simple_lock(&pmap->pmap_lock); \
pmap->pmap_refcnt++; \
simple_unlock(&pmap->pmap_lock); \
} } while (0)
#define pmap_collect(pmap)
#define pmap_release(pmap)
#define pmap_copy(dpmap,spmap,da,len,sa)
#define pmap_update(p)
void pmap_activate __P((struct proc *));
#define pmap_deactivate(p)
#define pmap_phys_address(x) ((x) << PGSHIFT)
#define pmap_phys_to_frame(x) ((x) >> PGSHIFT)
static __inline void
pmap_remove_all(struct pmap *pmap)
{
/* Nothing. */
}
static __inline int
pmap_prot(struct pmap *pmap, int prot)
{
extern u_int kern_prot[], user_prot[];
return (pmap == kernel_pmap? kern_prot: user_prot)[prot];
}
#endif /* _KERNEL */
#endif /* _HPPA_PMAP_H_ */