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