156 lines
6.2 KiB
C
156 lines
6.2 KiB
C
/* $NetBSD: pte.h,v 1.9 1996/05/05 06:17:58 briggs Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1988 University of Utah.
|
|
* Copyright (c) 1982, 1990 The 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.
|
|
*
|
|
* 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.
|
|
*/
|
|
/*-
|
|
* Copyright (C) 1993 Allen K. Briggs, Chris P. Caputo,
|
|
* Michael L. Finch, Bradley A. Grantham, and
|
|
* Lawrence A. Kesteloot
|
|
* 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 the Alice Group.
|
|
* 4. The names of the Alice Group or any of its members may not be used
|
|
* to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE ALICE GROUP ``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 ALICE GROUP 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: Utah $Hdr: pte.h 1.11 89/09/03$
|
|
*
|
|
* @(#)pte.h 7.3 (Berkeley) 5/8/91
|
|
*/
|
|
|
|
#ifndef _PTE_MACHINE_
|
|
#define _PTE_MACHINE_
|
|
|
|
/*
|
|
* Mac hardware segment/page table entries
|
|
*/
|
|
|
|
typedef int st_entry_t; /* segment table entry */
|
|
typedef int pt_entry_t; /* Mach page table entry */
|
|
|
|
#define PT_ENTRY_NULL ((pt_entry_t *) 0)
|
|
#define ST_ENTRY_NULL ((st_entry_t *) 0)
|
|
|
|
#define SG_V 0x00000002 /* segment is valid */
|
|
#define SG_NV 0x00000000
|
|
#define SG_PROT 0x00000004 /* access protection mask */
|
|
#define SG_RO 0x00000004
|
|
#define SG_RW 0x00000000
|
|
#define SG_U 0x00000008 /* modified bit (68040) */
|
|
#define SG_FRAME 0xfffff000
|
|
#define SG_IMASK 0xffc00000
|
|
#define SG_ISHIFT 22
|
|
#define SG_PMASK 0x003ff000
|
|
#define SG_PSHIFT 12
|
|
|
|
/* 68040 additions */
|
|
#define SG4_MASK1 0xfe000000
|
|
#define SG4_SHIFT1 25
|
|
#define SG4_MASK2 0x01fc0000
|
|
#define SG4_SHIFT2 18
|
|
#define SG4_MASK3 0x0003f000
|
|
#define SG4_SHIFT3 12
|
|
#define SG4_ADDR1 0xfffffe00
|
|
#define SG4_ADDR2 0xffffff00
|
|
#define SG4_LEV1SIZE 128
|
|
#define SG4_LEV2SIZE 128
|
|
#define SG4_LEV3SIZE 64
|
|
|
|
#define PG_V 0x00000001
|
|
#define PG_NV 0x00000000
|
|
#define PG_PROT 0x00000004
|
|
#define PG_U 0x00000008
|
|
#define PG_M 0x00000010
|
|
#define PG_W 0x00000100
|
|
#define PG_RO 0x00000004
|
|
#define PG_RW 0x00000000
|
|
#define PG_FRAME 0xfffff000
|
|
#define PG_CI 0x00000040
|
|
#define PG_SHIFT 12
|
|
#define PG_PFNUM(x) (((x) & PG_FRAME) >> PG_SHIFT)
|
|
|
|
/* 68040 additions */
|
|
#define PG_CMASK 0x00000060 /* cache mode mask */
|
|
#define PG_CWT 0x00000000 /* writethrough caching */
|
|
#define PG_CCB 0x00000020 /* copyback caching */
|
|
#define PG_CIS 0x00000040 /* cache inhibited serialized */
|
|
#define PG_CIN 0x00000060 /* cache inhibited nonserialized */
|
|
#define PG_SO 0x00000080 /* supervisor only */
|
|
|
|
#define MAC_STSIZE (MAXUL2SIZE*SG4_LEV2SIZE*sizeof(st_entry_t))
|
|
/* user process segment table size */
|
|
#define MAC_MAX_PTSIZE 0x400000 /* max size of UPT */
|
|
#define MAC_MAX_KPTSIZE 0x100000 /* max memory to allocate to KPT */
|
|
#define MAC_PTBASE 0x10000000 /* UPT map base address */
|
|
#define MAC_PTMAXSIZE 0x70000000 /* UPT map maximum size */
|
|
|
|
/*
|
|
* Kernel virtual address to page table entry and to physical address.
|
|
*/
|
|
#define kvtopte(va) \
|
|
(&Sysmap[((unsigned)(va) - VM_MIN_KERNEL_ADDRESS) >> PGSHIFT])
|
|
#define ptetokv(pt) \
|
|
((((pt_entry_t *)(pt) - Sysmap) << PGSHIFT) + VM_MIN_KERNEL_ADDRESS)
|
|
#define kvtophys(va) \
|
|
((kvtopte(va)->pg_pfnum << PGSHIFT) | ((int)(va) & PGOFSET))
|
|
|
|
#endif /* _PTE_MACHINE_ */
|