270429c53c
Many thanks to Andrew Gallatin for resolving a powerpc-specific initialization problem in my original patch. Tested by: gallatin@
113 lines
3.7 KiB
C
113 lines
3.7 KiB
C
/*-
|
|
* 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_ */
|