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/* $NetBSD: pte.h,v 1.1 1996/09/30 16:34:32 ws 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 _MACHINE_PTE_H_
#define _MACHINE_PTE_H_
#include <sys/queue.h>
/*
* Page Table Entries
*/
#ifndef _LOCORE
struct pte {
u_int pte_hi;
u_int pte_lo;
};
#endif /* _LOCORE */
/* High word: */
#define PTE_VALID 0x80000000
#define PTE_VSID_SHFT 7
#define PTE_HID 0x00000040
#define PTE_API 0x0000003f
/* Low word: */
#define PTE_RPGN 0xfffff000
#define PTE_REF 0x00000100
#define PTE_CHG 0x00000080
#define PTE_WIMG 0x00000078
#define PTE_W 0x00000040
#define PTE_I 0x00000020
#define PTE_M 0x00000010
#define PTE_G 0x00000008
#define PTE_PP 0x00000003
#define PTE_RO 0x00000003
#define PTE_RW 0x00000002
#ifndef _LOCORE
typedef struct pte pte_t;
#endif /* _LOCORE */
/*
* Extract bits from address
*/
#define ADDR_SR_SHFT 28
#define ADDR_PIDX 0x0ffff000
#define ADDR_PIDX_SHFT 12
#define ADDR_API_SHFT 22
#define ADDR_POFF 0x00000fff
#ifndef _LOCORE
#ifdef _KERNEL
extern pte_t *ptable;
extern int ptab_cnt;
#endif /* _KERNEL */
#endif /* _LOCORE */
/*
* Bits in DSISR:
*/
#define DSISR_DIRECT 0x80000000
#define DSISR_NOTFOUND 0x40000000
#define DSISR_PROTECT 0x08000000
#define DSISR_INVRX 0x04000000
#define DSISR_STORE 0x02000000
#define DSISR_DABR 0x00400000
#define DSISR_SEGMENT 0x00200000
#define DSISR_EAR 0x00100000
/*
* Bits in SRR1 on ISI:
*/
#define ISSRR1_NOTFOUND 0x40000000
#define ISSRR1_DIRECT 0x10000000
#define ISSRR1_PROTECT 0x08000000
#define ISSRR1_SEGMENT 0x00200000
#ifdef _KERNEL
#ifndef _LOCORE
extern u_int dsisr __P((void));
extern vm_offset_t dar __P((void));
#endif /* _KERNEL */
#endif /* _LOCORE */
#endif /* _MACHINE_PTE_H_ */
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