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/*-
* Copyright (c) 1991 Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department and William Jolitz of UUNET Technologies Inc.
*
* 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.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* from: hp300: @(#)pmap.h 7.2 (Berkeley) 12/16/90
* from: @(#)pmap.h 7.4 (Berkeley) 5/12/91
* from: FreeBSD: src/sys/i386/include/pmap.h,v 1.70 2000/11/30
* $FreeBSD$
*/
#ifndef _MACHINE_PMAP_H_
#define _MACHINE_PMAP_H_
#include <sys/queue.h>
#include <sys/_lock.h>
#include <sys/_mutex.h>
#include <machine/cache.h>
#include <machine/tte.h>
#define PMAP_CONTEXT_MAX 8192
typedef struct pmap *pmap_t;
struct md_page {
TAILQ_HEAD(, tte) tte_list;
struct pmap *pmap;
uint32_t colors[DCACHE_COLORS];
int32_t color;
uint32_t flags;
};
struct pmap {
struct mtx pm_mtx;
struct tte *pm_tsb;
vm_object_t pm_tsb_obj;
u_int pm_active;
u_int pm_context[MAXCPU];
struct pmap_statistics pm_stats;
};
#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 | MTX_DUPOK)
#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 ekva);
vm_paddr_t pmap_kextract(vm_offset_t va);
void pmap_kenter(vm_offset_t va, vm_page_t m);
void pmap_kremove(vm_offset_t);
void pmap_kenter_flags(vm_offset_t va, vm_paddr_t pa, u_long flags);
void pmap_kremove_flags(vm_offset_t va);
boolean_t pmap_page_is_mapped(vm_page_t m);
int pmap_cache_enter(vm_page_t m, vm_offset_t va);
void pmap_cache_remove(vm_page_t m, vm_offset_t va);
int pmap_remove_tte(struct pmap *pm1, struct pmap *pm2, struct tte *tp,
vm_offset_t va);
int pmap_protect_tte(struct pmap *pm1, struct pmap *pm2, struct tte *tp,
vm_offset_t va);
void pmap_map_tsb(void);
void pmap_clear_write(vm_page_t m);
#define vtophys(va) pmap_kextract(((vm_offset_t)(va)))
extern struct pmap kernel_pmap_store;
#define kernel_pmap (&kernel_pmap_store)
extern vm_paddr_t phys_avail[];
extern vm_offset_t virtual_avail;
extern vm_offset_t virtual_end;
extern vm_paddr_t msgbuf_phys;
static __inline int
pmap_track_modified(pmap_t pm, vm_offset_t va)
{
if (pm == kernel_pmap)
return ((va < kmi.clean_sva) || (va >= kmi.clean_eva));
else
return (1);
}
#ifdef PMAP_STATS
SYSCTL_DECL(_debug_pmap_stats);
#define PMAP_STATS_VAR(name) \
static long name; \
SYSCTL_LONG(_debug_pmap_stats, OID_AUTO, name, CTLFLAG_RW, \
&name, 0, "")
#define PMAP_STATS_INC(var) \
atomic_add_long(&var, 1)
#else
#define PMAP_STATS_VAR(name)
#define PMAP_STATS_INC(var)
#endif
#endif /* !_MACHINE_PMAP_H_ */
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