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/* $OpenBSD: pmap.h,v 1.16 2001/08/18 20:50:18 art Exp $ */
/*
* Mach Operating System
* Copyright (c) 1991 Carnegie Mellon University
* Copyright (c) 1991 OMRON Corporation
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
*/
#ifndef _MACHINE_PMAP_H_
#define _MACHINE_PMAP_H_
#define OMRON_PMAP
#include <machine/mmu.h> /* batc_template_t, BATC_MAX, etc.*/
#include <machine/pcb.h> /* pcb_t, etc.*/
#include <machine/psl.h> /* get standard goodies */
typedef struct sdt_entry *sdt_ptr_t;
/*
* PMAP structure
*/
typedef struct pmap *pmap_t;
struct pmap {
sdt_ptr_t sdt_paddr; /* physical pointer to sdt */
sdt_ptr_t sdt_vaddr; /* virtual pointer to sdt */
int ref_count; /* reference count */
simple_lock_data_t lock;
struct pmap_statistics stats; /* pmap statistics */
/* cpus using of this pmap; NCPU must be <= 32 */
unsigned long cpus_using;
#ifdef DEBUG
pmap_t next;
pmap_t prev;
#endif
/* for OMRON_PMAP */
batc_template_t i_batc[BATC_MAX]; /* instruction BATCs */
batc_template_t d_batc[BATC_MAX]; /* data BATCs */
/* end OMRON_PMAP */
};
#define PMAP_NULL ((pmap_t) 0)
extern pmap_t kernel_pmap;
/* The PV (Physical to virtual) List.
*
* For each vm_page_t, pmap keeps a list of all currently valid virtual
* mappings of that page. An entry is a pv_entry_t; the list is the
* pv_head_table. This is used by things like pmap_remove, when we must
* find and remove all mappings for a particular physical page.
*/
typedef struct pv_entry {
struct pv_entry *next; /* next pv_entry */
pmap_t pmap; /* pmap where mapping lies */
vm_offset_t va; /* virtual address for mapping */
} *pv_entry_t;
#ifdef _KERNEL
extern struct pmap kernel_pmap_store;
extern caddr_t vmmap;
#define pmap_kernel() (&kernel_pmap_store)
#define pmap_resident_count(pmap) ((pmap)->stats.resident_count)
/* Used in builtin/device_pager.c */
#define pmap_phys_address(frame) ((vm_offset_t) (ptoa(frame)))
#define PMAP_ACTIVATE(proc) pmap_activate(proc)
#define PMAP_DEACTIVATE(proc) pmap_deactivate(proc)
#define PMAP_CONTEXT(pmap, thread)
/*
* Modes used when calling pmap_cache_fulsh().
*/
#define FLUSH_CACHE 0
#define FLUSH_CODE_CACHE 1
#define FLUSH_DATA_CACHE 2
#define FLUSH_LOCAL_CACHE 3
#define FLUSH_LOCAL_CODE_CACHE 4
#define FLUSH_LOCAL_DATA_CACHE 5
/**************************************************************************/
/*** Prototypes for public functions defined in pmap.c ********************/
/**************************************************************************/
vm_offset_t pmap_map(
vm_offset_t virt,
vm_offset_t start,
vm_offset_t end,
vm_prot_t prot);
vm_offset_t pmap_map_batc(
vm_offset_t virt,
vm_offset_t start,
vm_offset_t end,
vm_prot_t prot,
unsigned cmode);
void pmap_bootstrap(
vm_offset_t load_start, /* IN */
vm_offset_t *phys_start, /* IN/OUT */
vm_offset_t *phys_end, /* IN */
vm_offset_t *virt_start, /* OUT */
vm_offset_t *virt_end); /* OUT */
pt_entry_t *pmap_pte(pmap_t map, vm_offset_t virt);
void pmap_cache_ctrl(pmap_t pmap, vm_offset_t s, vm_offset_t e, unsigned mode);
void pmap_zero_page(vm_offset_t phys);
void pmap_remove_all(vm_offset_t phys);
vm_offset_t pmap_extract_unlocked(pmap_t pmap, vm_offset_t va);
void copy_to_phys(vm_offset_t srcva, vm_offset_t dstpa, int bytecount);
void copy_from_phys(vm_offset_t srcpa, vm_offset_t dstva, int bytecount);
void pmap_redzone(pmap_t pmap, vm_offset_t va);
void icache_flush(vm_offset_t pa);
void pmap_dcache_flush(pmap_t pmap, vm_offset_t va);
void pmap_cache_flush(pmap_t pmap, vm_offset_t virt, int bytes, int mode);
void pmap_print (pmap_t pmap);
void pmap_print_trace (pmap_t pmap, vm_offset_t va, boolean_t long_format);
#if 0
#ifdef OMRON_PMAP
void pmap_set_batc(
pmap_t pmap,
boolean_t data,
int i,
vm_offset_t va,
vm_offset_t pa,
boolean_t super,
boolean_t wt,
boolean_t global,
boolean_t ci,
boolean_t wp,
boolean_t valid);
void use_batc(
task_t task,
boolean_t data, /* for data-cmmu ? */
int i, /* batc number */
vm_offset_t va, /* virtual address */
vm_offset_t pa, /* physical address */
boolean_t s, /* for super-mode ? */
boolean_t wt, /* is writethrough */
boolean_t g, /* is global ? */
boolean_t ci, /* is cache inhibited ? */
boolean_t wp, /* is write-protected ? */
boolean_t v); /* is valid ? */
#endif
#endif /* 0 */
#endif /* _KERNEL */
#endif /* endif _MACHINE_PMAP_H_ */
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