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/*-
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
* Copyright (C) 1995, 1996 TooLs GmbH.
* 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 TooLs GmbH.
* 4. The name of TooLs GmbH may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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.
*
* $NetBSD: pmap.h,v 1.17 2000/03/30 16:18:24 jdolecek Exp $
* $FreeBSD$
*/
#ifndef _MACHINE_PMAP_H_
#define _MACHINE_PMAP_H_
#include <sys/queue.h>
#include <sys/_lock.h>
#include <sys/_mutex.h>
#include <machine/sr.h>
#include <machine/pte.h>
#if !defined(NPMAPS)
#define NPMAPS 32768
#endif /* !defined(NPMAPS) */
struct pmap {
struct mtx pm_mtx;
u_int pm_sr[16];
u_int pm_active;
u_int pm_context;
struct pmap_statistics pm_stats;
};
typedef struct pmap *pmap_t;
struct pvo_entry {
LIST_ENTRY(pvo_entry) pvo_vlink; /* Link to common virt page */
LIST_ENTRY(pvo_entry) pvo_olink; /* Link to overflow entry */
struct pte pvo_pte; /* PTE */
pmap_t pvo_pmap; /* Owning pmap */
vm_offset_t pvo_vaddr; /* VA of entry */
};
LIST_HEAD(pvo_head, pvo_entry);
struct md_page {
u_int mdpg_attrs;
struct pvo_head mdpg_pvoh;
};
extern struct pmap kernel_pmap_store;
#define kernel_pmap (&kernel_pmap_store)
#define pmap_page_is_mapped(m) (!LIST_EMPTY(&(m)->md.mdpg_pvoh))
#ifdef _KERNEL
#define PMAP_LOCK(pmap) mtx_lock(&(pmap)->pm_mtx)
#define PMAP_LOCK_ASSERT(pmap, type) \
mtx_assert(&(pmap)->pm_mtx, (type))
#define PMAP_LOCK_DESTROY(pmap) mtx_destroy(&(pmap)->pm_mtx)
#define PMAP_LOCK_INIT(pmap) mtx_init(&(pmap)->pm_mtx, "pmap", \
NULL, MTX_DEF)
#define PMAP_LOCKED(pmap) mtx_owned(&(pmap)->pm_mtx)
#define PMAP_MTX(pmap) (&(pmap)->pm_mtx)
#define PMAP_TRYLOCK(pmap) mtx_trylock(&(pmap)->pm_mtx)
#define PMAP_UNLOCK(pmap) mtx_unlock(&(pmap)->pm_mtx)
void pmap_bootstrap(vm_offset_t, vm_offset_t);
void pmap_kenter(vm_offset_t va, vm_offset_t pa);
void pmap_kremove(vm_offset_t);
void *pmap_mapdev(vm_offset_t, vm_size_t);
void pmap_unmapdev(vm_offset_t, vm_size_t);
void pmap_deactivate(struct thread *);
vm_offset_t pmap_kextract(vm_offset_t);
int pmap_pte_spill(vm_offset_t);
int pmap_dev_direct_mapped(vm_offset_t, vm_size_t);
#define vtophys(va) pmap_kextract(((vm_offset_t)(va)))
extern vm_offset_t phys_avail[];
extern vm_offset_t virtual_avail;
extern vm_offset_t virtual_end;
extern vm_offset_t msgbuf_phys;
#endif
#endif /* !_MACHINE_PMAP_H_ */
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