163 lines
6.3 KiB
C
163 lines
6.3 KiB
C
/* $NetBSD: pte_motorola.h,v 1.3 2005/12/11 12:17:53 christos Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1982, 1986, 1990, 1993
|
|
* 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. 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: Utah $Hdr: pte.h 1.13 92/01/20$
|
|
*
|
|
* @(#)pte.h 8.1 (Berkeley) 6/10/93
|
|
*/
|
|
/*
|
|
* Copyright (c) 1988 University of Utah.
|
|
*
|
|
* 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.
|
|
*
|
|
* from: Utah $Hdr: pte.h 1.13 92/01/20$
|
|
*
|
|
* @(#)pte.h 8.1 (Berkeley) 6/10/93
|
|
*/
|
|
|
|
#ifndef _MACHINE_PTE_H_
|
|
#define _MACHINE_PTE_H_
|
|
|
|
/*
|
|
* m68k motorola MMU segment/page table entries
|
|
*/
|
|
|
|
typedef int st_entry_t; /* segment table entry */
|
|
typedef int pt_entry_t; /* page table entry */
|
|
|
|
#define PT_ENTRY_NULL NULL
|
|
#define ST_ENTRY_NULL NULL
|
|
|
|
#if defined(amiga) || defined(atari)
|
|
#define PG_SHIFT 13
|
|
#else
|
|
#define PG_SHIFT 12
|
|
#endif
|
|
|
|
#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 ((~0) << PG_SHIFT)
|
|
#define SG_ISHIFT ((PG_SHIFT << 1) - 2) /* 24 or 22 */
|
|
#define SG_IMASK ((~0) << SG_ISHIFT)
|
|
#define SG_PSHIFT PG_SHIFT
|
|
#define SG_PMASK (((~0) << SG_PSHIFT) & ~SG_IMASK)
|
|
|
|
/* 68040 additions */
|
|
#define SG4_MASK1 0xfe000000
|
|
#define SG4_SHIFT1 25
|
|
#define SG4_MASK2 0x01fc0000
|
|
#define SG4_SHIFT2 18
|
|
#define SG4_MASK3 (((~0) << PG_SHIFT) & ~(SG4_MASK1 | SG4_MASK2))
|
|
#define SG4_SHIFT3 PG_SHIFT
|
|
#define SG4_ADDR1 0xfffffe00
|
|
#define SG4_ADDR2 ((~0) << (20 - PG_SHIFT))
|
|
#define SG4_LEV1SIZE 128
|
|
#define SG4_LEV2SIZE 128
|
|
#define SG4_LEV3SIZE (1 << (SG4_SHIFT2 - PG_SHIFT)) /* 64 or 32 */
|
|
|
|
#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 ((~0) << PG_SHIFT)
|
|
#define PG_CI 0x00000040
|
|
#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 M68K_STSIZE (MAXUL2SIZE * SG4_LEV2SIZE * sizeof(st_entry_t))
|
|
/* user process segment table size */
|
|
#define M68K_MAX_PTSIZE 0x400000 /* max size of UPT */
|
|
#define M68K_MAX_KPTSIZE 0x100000 /* max memory to allocate to KPT */
|
|
#define M68K_PTBASE 0x10000000 /* UPT map base address */
|
|
#define M68K_PTMAXSIZE 0x70000000 /* UPT map maximum size */
|
|
|
|
/*
|
|
* Kernel virtual address to page table entry and to physical address.
|
|
*/
|
|
|
|
#ifdef cesfic
|
|
#define kvtopte(va) \
|
|
(&Sysmap[((unsigned)(va)) >> PGSHIFT])
|
|
#else
|
|
#define kvtopte(va) \
|
|
(&Sysmap[((unsigned)(va) - VM_MIN_KERNEL_ADDRESS) >> PGSHIFT])
|
|
#endif
|
|
|
|
#endif /* !_MACHINE_PTE_H_ */
|