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Diffstat (limited to 'sys/powerpc/include/pte.h')
-rw-r--r-- | sys/powerpc/include/pte.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/sys/powerpc/include/pte.h b/sys/powerpc/include/pte.h new file mode 100644 index 0000000..3d1ddcf --- /dev/null +++ b/sys/powerpc/include/pte.h @@ -0,0 +1,112 @@ +/*- + * 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; +}; +#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)); +#endif /* _KERNEL */ +#endif /* LOCORE */ +#endif /* _MACHINE_PTE_H_ */ |