NetBSD-5.0.2/sys/arch/powerpc/include/oea/pmap.h
/* $NetBSD: pmap.h,v 1.13 2008/02/07 00:36:57 matt Exp $ */
/*-
* 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.
*/
#ifndef _POWERPC_OEA_PMAP_H_
#define _POWERPC_OEA_PMAP_H_
#include "opt_ppcarch.h"
#include <powerpc/oea/pte.h>
#ifndef _LOCORE
/*
* Pmap stuff
*/
struct pmap {
#ifdef PPC_OEA64
struct steg *pm_steg_table; /* segment table pointer */
/* XXX need way to track exec pages */
#endif
#if defined(PPC_OEA) || defined (PPC_OEA64_BRIDGE)
register_t pm_sr[16]; /* segments used in this pmap */
int pm_exec[16]; /* counts of exec mappings */
#endif
register_t pm_vsid; /* VSID bits */
int pm_refs; /* ref count */
struct pmap_statistics pm_stats; /* pmap statistics */
unsigned int pm_evictions; /* pvo's not in page table */
#ifdef PPC_OEA64
unsigned int pm_ste_evictions;
#endif
};
typedef struct pmap *pmap_t;
struct pmap_ops {
int (*pmapop_pte_spill)(struct pmap *, vaddr_t, bool);
void (*pmapop_real_memory)(paddr_t *, psize_t *);
void (*pmapop_init)(void);
void (*pmapop_virtual_space)(vaddr_t *, vaddr_t *);
pmap_t (*pmapop_create)(void);
void (*pmapop_reference)(pmap_t);
void (*pmapop_destroy)(pmap_t);
void (*pmapop_copy)(pmap_t, pmap_t, vaddr_t, vsize_t, vaddr_t);
void (*pmapop_update)(pmap_t);
void (*pmapop_collect)(pmap_t);
int (*pmapop_enter)(pmap_t, vaddr_t, paddr_t, vm_prot_t, int);
void (*pmapop_remove)(pmap_t, vaddr_t, vaddr_t);
void (*pmapop_kenter_pa)(vaddr_t, paddr_t, vm_prot_t);
void (*pmapop_kremove)(vaddr_t, vsize_t);
bool (*pmapop_extract)(pmap_t, vaddr_t, paddr_t *);
void (*pmapop_protect)(pmap_t, vaddr_t, vaddr_t, vm_prot_t);
void (*pmapop_unwire)(pmap_t, vaddr_t);
void (*pmapop_page_protect)(struct vm_page *, vm_prot_t);
bool (*pmapop_query_bit)(struct vm_page *, int);
bool (*pmapop_clear_bit)(struct vm_page *, int);
void (*pmapop_activate)(struct lwp *);
void (*pmapop_deactivate)(struct lwp *);
void (*pmapop_pinit)(pmap_t);
void (*pmapop_procwr)(struct proc *, vaddr_t, size_t);
void (*pmapop_pte_print)(volatile struct pte *);
void (*pmapop_pteg_check)(void);
void (*pmapop_print_mmuregs)(void);
void (*pmapop_print_pte)(pmap_t, vaddr_t);
void (*pmapop_pteg_dist)(void);
void (*pmapop_pvo_verify)(void);
vaddr_t (*pmapop_steal_memory)(vsize_t, vaddr_t *, vaddr_t *);
void (*pmapop_bootstrap)(paddr_t, paddr_t);
};
#ifdef _KERNEL
#include <sys/cdefs.h>
__BEGIN_DECLS
#include <sys/param.h>
#include <sys/systm.h>
#if defined (PPC_OEA) || defined (PPC_OEA64_BRIDGE)
extern register_t iosrtable[];
#endif
extern int pmap_use_altivec;
extern struct pmap kernel_pmap_;
#define pmap_kernel() (&kernel_pmap_)
#define pmap_clear_modify(pg) (pmap_clear_bit((pg), PTE_CHG))
#define pmap_clear_reference(pg) (pmap_clear_bit((pg), PTE_REF))
#define pmap_is_modified(pg) (pmap_query_bit((pg), PTE_CHG))
#define pmap_is_referenced(pg) (pmap_query_bit((pg), PTE_REF))
#define pmap_phys_address(x) (x)
#define pmap_resident_count(pmap) ((pmap)->pm_stats.resident_count)
#define pmap_wired_count(pmap) ((pmap)->pm_stats.wired_count)
/* ARGSUSED */
static inline void
pmap_remove_all(struct pmap *pmap)
{
/* Nothing. */
}
#if (defined(PPC_OEA) + defined(PPC_OEA64) + defined(PPC_OEA64_BRIDGE)) != 1
#define PMAP_EXCLUDE_DECLS
#endif
#ifndef PMAP_NOOPNAMES
#if !defined(PMAP_EXCLUDE_DECLS)
void pmap_bootstrap(vaddr_t, vaddr_t);
bool pmap_extract(pmap_t, vaddr_t, paddr_t *);
bool pmap_query_bit(struct vm_page *, int);
bool pmap_clear_bit(struct vm_page *, int);
void pmap_real_memory(paddr_t *, psize_t *);
void pmap_procwr(struct proc *, vaddr_t, size_t);
int pmap_pte_spill(pmap_t, vaddr_t, bool);
void pmap_pinit(pmap_t);
#else
#define PMAPOPNAME(name) (*pmapops->pmapop_##name)
extern const struct pmap_ops *pmapops;
#define pmap_pte_spill PMAPOPNAME(pte_spill)
#define pmap_real_memory PMAPOPNAME(real_memory)
#define pmap_init PMAPOPNAME(init)
#define pmap_virtual_space PMAPOPNAME(virtual_space)
#define pmap_create PMAPOPNAME(create)
#define pmap_reference PMAPOPNAME(reference)
#define pmap_destroy PMAPOPNAME(destroy)
#define pmap_copy PMAPOPNAME(copy)
#define pmap_update PMAPOPNAME(update)
#define pmap_collect PMAPOPNAME(collect)
#define pmap_enter PMAPOPNAME(enter)
#define pmap_remove PMAPOPNAME(remove)
#define pmap_kenter_pa PMAPOPNAME(kenter_pa)
#define pmap_kremove PMAPOPNAME(kremove)
#define pmap_extract PMAPOPNAME(extract)
#define pmap_protect PMAPOPNAME(protect)
#define pmap_unwire PMAPOPNAME(unwire)
#define pmap_page_protect PMAPOPNAME(page_protect)
#define pmap_query_bit PMAPOPNAME(query_bit)
#define pmap_clear_bit PMAPOPNAME(clear_bit)
#define pmap_activate PMAPOPNAME(activate)
#define pmap_deactivate PMAPOPNAME(deactivate)
#define pmap_pinit PMAPOPNAME(pinit)
#define pmap_procwr PMAPOPNAME(procwr)
#define pmap_pte_print PMAPOPNAME(pte_print)
#define pmap_pteg_check PMAPOPNAME(pteg_check)
#define pmap_print_mmuregs PMAPOPNAME(print_mmuregs)
#define pmap_print_pte PMAPOPNAME(print_pte)
#define pmap_pteg_dist PMAPOPNAME(pteg_dist)
#define pmap_pvo_verify PMAPOPNAME(pvo_verify)
#define pmap_steal_memory PMAPOPNAME(steal_memory)
#define pmap_bootstrap PMAPOPNAME(bootstrap)
#endif /* PMAP_EXCLUDE_DECLS */
static inline paddr_t vtophys (vaddr_t);
/*
* Alternate mapping hooks for pool pages. Avoids thrashing the TLB.
*
* Note: This won't work if we have more memory than can be direct-mapped
* VA==PA all at once. But pmap_copy_page() and pmap_zero_page() will have
* this problem, too.
*/
#if !defined(PPC_OEA64) && !defined (PPC_OEA64_BRIDGE)
#define PMAP_MAP_POOLPAGE(pa) (pa)
#define PMAP_UNMAP_POOLPAGE(pa) (pa)
#define POOL_VTOPHYS(va) vtophys((vaddr_t) va)
#endif
static inline paddr_t
vtophys(vaddr_t va)
{
paddr_t pa;
if (pmap_extract(pmap_kernel(), va, &pa))
return pa;
KASSERT(0);
return (paddr_t) -1;
}
extern const struct pmap_ops *pmapops;
extern const struct pmap_ops pmap32_ops;
extern const struct pmap_ops pmap64_ops;
extern const struct pmap_ops pmap64bridge_ops;
static inline void
pmap_setup32(void)
{
pmapops = &pmap32_ops;
}
static inline void
pmap_setup64(void)
{
pmapops = &pmap64_ops;
}
static inline void
pmap_setup64bridge(void)
{
pmapops = &pmap64bridge_ops;
}
#endif /* !PMAP_NOOPNAMES */
bool pmap_pageidlezero (paddr_t);
void pmap_syncicache (paddr_t, psize_t);
#ifdef PPC_OEA64
vaddr_t pmap_setusr (vaddr_t);
vaddr_t pmap_unsetusr (void);
#endif
#ifdef PPC_OEA64_BRIDGE
int pmap_setup_segment0_map(int use_large_pages, ...);
#endif
#define PMAP_NC 0x1000
#define PMAP_STEAL_MEMORY
#define PMAP_NEED_PROCWR
void pmap_zero_page(paddr_t);
void pmap_copy_page(paddr_t, paddr_t);
__END_DECLS
#endif /* _KERNEL */
#endif /* _LOCORE */
#endif /* _POWERPC_OEA_PMAP_H_ */