mirror of
https://codeberg.org/ziglang/zig.git
synced 2025-12-06 13:54:21 +00:00
553cb3ed46
sys/param.h was manually adjusted to not define __NetBSD_Version__ since it will be defined by the compiler.
292 lines
No EOL
8.4 KiB
C
Vendored
292 lines
No EOL
8.4 KiB
C
Vendored
/* $NetBSD: pmap.h,v 1.37.4.1 2023/12/29 20:21:39 martin 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_
|
|
|
|
#ifdef _LOCORE
|
|
#error use assym.h instead
|
|
#endif
|
|
|
|
#ifdef _MODULE
|
|
#error this file should not be included by loadable kernel modules
|
|
#endif
|
|
|
|
#ifdef _KERNEL_OPT
|
|
#include "opt_ppcarch.h"
|
|
#include "opt_modular.h"
|
|
#endif
|
|
#include <powerpc/oea/pte.h>
|
|
|
|
#define __HAVE_PMAP_PV_TRACK
|
|
#include <uvm/pmap/pmap_pvt.h>
|
|
|
|
/*
|
|
* 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
|
|
};
|
|
|
|
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);
|
|
int (*pmapop_enter)(pmap_t, vaddr_t, paddr_t, vm_prot_t, u_int);
|
|
void (*pmapop_remove)(pmap_t, vaddr_t, vaddr_t);
|
|
void (*pmapop_kenter_pa)(vaddr_t, paddr_t, vm_prot_t, u_int);
|
|
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);
|
|
void (*pmapop_pv_protect)(paddr_t, 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);
|
|
void (*pmapop_bootstrap1)(paddr_t, paddr_t);
|
|
void (*pmapop_bootstrap2)(void);
|
|
};
|
|
|
|
#ifdef _KERNEL
|
|
#include <sys/cdefs.h>
|
|
__BEGIN_DECLS
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
|
|
/*
|
|
* For OEA and OEA64_BRIDGE, we guarantee that pa below USER_ADDR
|
|
* (== 3GB < VM_MIN_KERNEL_ADDRESS) is direct-mapped.
|
|
*/
|
|
#if defined(PPC_OEA) || defined(PPC_OEA64_BRIDGE)
|
|
#define PMAP_DIRECT_MAPPED_SR (USER_SR - 1)
|
|
#define PMAP_DIRECT_MAPPED_LEN \
|
|
((vaddr_t)SEGMENT_LENGTH * (PMAP_DIRECT_MAPPED_SR + 1))
|
|
#endif
|
|
|
|
#if defined (PPC_OEA) || defined (PPC_OEA64_BRIDGE)
|
|
extern register_t iosrtable[];
|
|
#endif
|
|
extern int pmap_use_altivec;
|
|
|
|
#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_resident_count(pmap) ((pmap)->pm_stats.resident_count)
|
|
#define pmap_wired_count(pmap) ((pmap)->pm_stats.wired_count)
|
|
|
|
/* ARGSUSED */
|
|
static __inline bool
|
|
pmap_remove_all(struct pmap *pmap)
|
|
{
|
|
/* Nothing. */
|
|
return false;
|
|
}
|
|
|
|
#if (defined(PPC_OEA) + defined(PPC_OEA64) + defined(PPC_OEA64_BRIDGE)) != 1
|
|
#define PMAP_NEEDS_FIXUP
|
|
#endif
|
|
|
|
extern volatile struct pteg *pmap_pteg_table;
|
|
extern unsigned int pmap_pteg_cnt;
|
|
extern unsigned int pmap_pteg_mask;
|
|
|
|
void pmap_bootstrap(vaddr_t, vaddr_t);
|
|
void pmap_bootstrap1(vaddr_t, vaddr_t);
|
|
void pmap_bootstrap2(void);
|
|
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);
|
|
int pmap_ste_spill(pmap_t, vaddr_t, bool);
|
|
void pmap_pinit(pmap_t);
|
|
|
|
#ifdef PPC_OEA601
|
|
bool pmap_extract_ioseg601(vaddr_t, paddr_t *);
|
|
#endif /* PPC_OEA601 */
|
|
#ifdef PPC_OEA
|
|
bool pmap_extract_battable(vaddr_t, paddr_t *);
|
|
#endif /* PPC_OEA */
|
|
|
|
u_int powerpc_mmap_flags(paddr_t);
|
|
#define POWERPC_MMAP_FLAG_MASK 0xf
|
|
#define POWERPC_MMAP_FLAG_PREFETCHABLE 0x1
|
|
#define POWERPC_MMAP_FLAG_CACHEABLE 0x2
|
|
|
|
#define pmap_phys_address(ppn) (ppn & ~POWERPC_MMAP_FLAG_MASK)
|
|
#define pmap_mmap_flags(ppn) powerpc_mmap_flags(ppn)
|
|
|
|
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)
|
|
#define PMAP_MAP_POOLPAGE(pa) (pa)
|
|
#define PMAP_UNMAP_POOLPAGE(pa) (pa)
|
|
#define POOL_VTOPHYS(va) vtophys((vaddr_t) va)
|
|
|
|
#define PMAP_ALLOC_POOLPAGE(flags) pmap_alloc_poolpage(flags)
|
|
struct vm_page *pmap_alloc_poolpage(int);
|
|
#endif
|
|
|
|
static __inline paddr_t
|
|
vtophys(vaddr_t va)
|
|
{
|
|
paddr_t pa;
|
|
|
|
if (pmap_extract(pmap_kernel(), va, &pa))
|
|
return pa;
|
|
KASSERTMSG(0, "vtophys: pmap_extract of %#"PRIxVADDR" failed", va);
|
|
return (paddr_t) -1;
|
|
}
|
|
|
|
|
|
#ifdef PMAP_NEEDS_FIXUP
|
|
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
|
|
|
|
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_MD_PREFETCHABLE 0x2000000
|
|
#define PMAP_STEAL_MEMORY
|
|
#define PMAP_NEED_PROCWR
|
|
|
|
void pmap_zero_page(paddr_t);
|
|
void pmap_copy_page(paddr_t, paddr_t);
|
|
|
|
LIST_HEAD(pvo_head, pvo_entry);
|
|
|
|
#define __HAVE_VM_PAGE_MD
|
|
|
|
struct pmap_page {
|
|
unsigned int pp_attrs;
|
|
struct pvo_head pp_pvoh;
|
|
#ifdef MODULAR
|
|
uintptr_t pp_dummy[3];
|
|
#endif
|
|
};
|
|
|
|
struct vm_page_md {
|
|
struct pmap_page mdpg_pp;
|
|
#define mdpg_attrs mdpg_pp.pp_attrs
|
|
#define mdpg_pvoh mdpg_pp.pp_pvoh
|
|
#ifdef MODULAR
|
|
#define mdpg_dummy mdpg_pp.pp_dummy
|
|
#endif
|
|
};
|
|
|
|
#define VM_MDPAGE_INIT(pg) do { \
|
|
(pg)->mdpage.mdpg_attrs = 0; \
|
|
LIST_INIT(&(pg)->mdpage.mdpg_pvoh); \
|
|
} while (/*CONSTCOND*/0)
|
|
|
|
__END_DECLS
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* _POWERPC_OEA_PMAP_H_ */ |