xref: /netbsd/sys/arch/ia64/include/pte.h (revision 772aba29)
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