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      1 /*	$NetBSD: pte.h,v 1.4 2016/08/08 17:20:17 scole Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001 Doug Rabson
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  *
     28  * $FreeBSD: releng/10.1/sys/ia64/include/pte.h 137978 2004-11-21 21:40:08Z marcel $
     29  */
     30 
     31 #ifndef _MACHINE_PTE_H_
     32 #define	_MACHINE_PTE_H_
     33 
     34 #define	PTE_PRESENT	0x0000000000000001
     35 #define	PTE__RV1_	0x0000000000000002
     36 #define	PTE_MA_MASK	0x000000000000001C
     37 #define	PTE_MA_WB	0x0000000000000000
     38 #define	PTE_MA_UC	0x0000000000000010
     39 #define	PTE_MA_UCE	0x0000000000000014
     40 #define	PTE_MA_WC	0x0000000000000018
     41 #define	PTE_MA_NATPAGE	0x000000000000001C
     42 #define	PTE_ACCESSED	0x0000000000000020
     43 #define	PTE_DIRTY	0x0000000000000040
     44 #define	PTE_PL_MASK	0x0000000000000180
     45 #define	PTE_PL_KERN	0x0000000000000000
     46 #define	PTE_PL_USER	0x0000000000000180
     47 #define	PTE_AR_MASK	0x0000000000000E00
     48 #define	PTE_AR_R	0x0000000000000000
     49 #define	PTE_AR_RX	0x0000000000000200
     50 #define	PTE_AR_RW	0x0000000000000400
     51 #define	PTE_AR_RWX	0x0000000000000600
     52 #define	PTE_AR_R_RW	0x0000000000000800
     53 #define	PTE_AR_RX_RWX	0x0000000000000A00
     54 #define	PTE_AR_RWX_RW	0x0000000000000C00
     55 #define	PTE_AR_X_RX	0x0000000000000E00
     56 #define	PTE_PPN_MASK	0x0003FFFFFFFFF000
     57 #define	PTE__RV2_	0x000C000000000000
     58 #define	PTE_ED		0x0010000000000000
     59 #define	PTE_IG_MASK	0xFFE0000000000000
     60 #define	PTE_WIRED	0x0020000000000000
     61 #define	PTE_MANAGED	0x0040000000000000
     62 #define	PTE_PROT_MASK	0x0700000000000000
     63 
     64 #define	ITIR__RV1_	0x0000000000000003
     65 #define	ITIR_PS_MASK	0x00000000000000FC
     66 #define	ITIR_KEY_MASK	0x00000000FFFFFF00
     67 #define	ITIR__RV2_	0xFFFFFFFF00000000
     68 
     69 #ifndef _LOCORE
     70 
     71 typedef uint64_t pt_entry_t;
     72 
     73 /*
     74  * A long-format VHPT entry.
     75  */
     76 struct ia64_lpte {
     77 	pt_entry_t	pte;
     78 	uint64_t	itir;
     79 	uint64_t	tag;		/* includes ti */
     80 	uint64_t	chain;		/* pa of collision chain */
     81 };
     82 
     83 /*
     84  * Layout of rr[x].
     85  */
     86 struct ia64_rr {
     87 	uint64_t	rr_ve	:1;	/* bit 0 */
     88 	uint64_t	__rv1__	:1;	/* bit 1 */
     89 	uint64_t	rr_ps	:6;	/* bits 2..7 */
     90 	uint64_t	rr_rid	:24;	/* bits 8..31 */
     91 	uint64_t	__rv2__	:32;	/* bits 32..63 */
     92 };
     93 
     94 #endif /* !LOCORE */
     95 
     96 #endif /* !_MACHINE_PTE_H_ */
     97