8207b3627b
2. Set a pcpu variable to the real address of the active pmap (used when
exiting from traps.
Obtained from: NetBSD (1)
123 lines
3.6 KiB
C
123 lines
3.6 KiB
C
/*-
|
|
* 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.
|
|
*
|
|
* $NetBSD: pte.h,v 1.2 1998/08/31 14:43:40 tsubai Exp $
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MACHINE_PTE_H_
|
|
#define _MACHINE_PTE_H_
|
|
|
|
/*
|
|
* Page Table Entries
|
|
*/
|
|
#ifndef LOCORE
|
|
#include <sys/queue.h>
|
|
|
|
struct pte {
|
|
u_int pte_hi;
|
|
u_int pte_lo;
|
|
};
|
|
|
|
struct pteg {
|
|
struct pte pt[8];
|
|
};
|
|
#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_SO 0x00000000 /* Super. Only (U: XX, S: RW) */
|
|
#define PTE_SW 0x00000001 /* Super. Write-Only (U: RO, S: RW) */
|
|
#define PTE_BW 0x00000002 /* Supervisor (U: RW, S: RW) */
|
|
#define PTE_BR 0x00000003 /* Both Read Only (U: RO, S: RO) */
|
|
#define PTE_RW PTE_BW
|
|
#define PTE_RO PTE_BR
|
|
|
|
#define PTE_EXEC 0x00000200 /* pseudo bit in attrs; page is exec */
|
|
|
|
#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(void);
|
|
#endif /* _KERNEL */
|
|
#endif /* LOCORE */
|
|
#endif /* _MACHINE_PTE_H_ */
|