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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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 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 <machine/tte.h>
#define DCACHE_COLOR_BITS (1)
#define DCACHE_COLORS (1 << DCACHE_COLOR_BITS)
#define DCACHE_COLOR_MASK (DCACHE_COLORS - 1)
#define DCACHE_COLOR(va) (((va) >> PAGE_SHIFT) & DCACHE_COLOR_MASK)
#define DCACHE_OTHER_COLOR(color) \
((color) ^ DCACHE_COLOR_BITS)
#define PMAP_CONTEXT_MAX 8192
#define pmap_page_is_mapped(m) (!STAILQ_EMPTY(&(m)->md.tte_list))
#define pmap_resident_count(pm) (pm->pm_stats.resident_count)
typedef struct pmap *pmap_t;
struct md_page {
STAILQ_HEAD(, tte) tte_list;
int colors[DCACHE_COLORS];
int color;
int flags;
};
struct pmap {
struct tte *pm_tsb;
vm_object_t pm_tsb_obj;
u_int pm_active;
u_int pm_context[MAXCPU];
struct pmap_statistics pm_stats;
};
void pmap_bootstrap(vm_offset_t ekva);
void pmap_context_rollover(void);
vm_offset_t pmap_kextract(vm_offset_t va);
void pmap_kenter_flags(vm_offset_t va, vm_offset_t pa, u_long flags);
void pmap_kremove_flags(vm_offset_t va);
void pmap_qenter_flags(vm_offset_t va, vm_page_t *m, int count, u_long fl);
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_remove_all(vm_page_t m);
void pmap_clear_write(vm_page_t m);
#define vtophys(va) pmap_kextract(((vm_offset_t) (va)))
extern vm_offset_t avail_start;
extern vm_offset_t avail_end;
extern struct pmap kernel_pmap_store;
#define kernel_pmap (&kernel_pmap_store)
extern vm_offset_t phys_avail[];
extern vm_offset_t virtual_avail;
extern vm_offset_t virtual_end;
extern vm_offset_t kernel_page;
extern int pmap_pagedaemon_waken;
extern vm_offset_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);
}
#endif /* !_MACHINE_PMAP_H_ */
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