1/* $OpenBSD: pte.h,v 1.11 2023/01/31 01:27:58 gkoehler Exp $ */
2/* $NetBSD: pte.h,v 1.1 1996/09/30 16:34:32 ws Exp $ */
3
4/*-
5 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
6 * Copyright (C) 1995, 1996 TooLs GmbH.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by TooLs GmbH.
20 * 4. The name of TooLs GmbH may not be used to endorse or promote products
21 * derived from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
28 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
29 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
31 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
32 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35#ifndef _POWERPC_PTE_H_
36#define _POWERPC_PTE_H_
37
38/*
39 * Page Table Entries
40 */
41#ifndef _LOCORE
42struct pte_32 {
43 u_int32_t pte_hi;
44 u_int32_t pte_lo;
45};
46struct pte_64 {
47 u_int64_t pte_hi;
48 u_int64_t pte_lo;
49};
50#endif /* _LOCORE */
51
52/* 32 bit */
53/* High word: */
54#define PTE_VALID_32 0x80000000
55#define PTE_VSID_SHIFT_32 7
56#define PTE_HID_32 0x00000040
57#define PTE_API_32 0x0000003f
58 /* Low word: */
59#define PTE_RPGN_32 0xfffff000
60#define PTE_REF_32 0x00000100
61#define PTE_CHG_32 0x00000080
62#define PTE_WIM_32 0x00000078
63#define PTE_W_32 0x00000040
64#define PTE_EXE_32 0x00000040 /* only used in pmap_attr, same as PTE_W */
65#define PTE_I_32 0x00000020
66#define PTE_M_32 0x00000010
67#define PTE_G_32 0x00000008
68#define PTE_PP_32 0x00000003
69#define PTE_RO_32 0x00000003
70#define PTE_RW_32 0x00000002
71
72
73/* 64 bit */
74/* High doubleword: */
75#define PTE_VALID_64 0x0000000000000001ULL
76#define PTE_AVPN_SHIFT_64 7
77#define PTE_AVPN_64 0xffffffffffffff80ULL
78#define PTE_API_SHIFT_64 7
79#define PTE_API_64 0x0000000000000f80ULL
80#define PTE_VSID_SHIFT_64 12
81#define PTE_VSID_64 0xfffffffffffff000ULL
82#define PTE_HID_64 0x0000000000000002ULL
83/* Low word: */
84#define PTE_RPGN_64 0x3ffffffffffff000ULL
85#define PTE_AC_64 0x0000000000000200ULL
86#define PTE_REF_64 0x0000000000000100ULL
87#define PTE_CHG_64 0x0000000000000080ULL
88#define PTE_WIMG_64 0x0000000000000078ULL
89#define PTE_W_64 0x0000000000000040ULL
90#define PTE_EXE_64 PTE_W
91#define PTE_I_64 0x0000000000000020ULL
92#define PTE_M_64 0x0000000000000010ULL
93#define PTE_G_64 0x0000000000000008ULL
94#define PTE_N_64 0x0000000000000004ULL
95#define PTE_PP_64 0x0000000000000003ULL
96#define PTE_RO_64 0x0000000000000003ULL
97#define PTE_RW_64 0x0000000000000002ULL
98
99/*
100 * Extract bits from address
101 */
102#define ADDR_SR_SHIFT 28
103#define ADDR_PIDX 0x0ffff000
104#define ADDR_PIDX_SHIFT 12
105#define ADDR_API_SHIFT_32 22
106#define ADDR_API_SHIFT_64 16
107#define ADDR_POFF 0x00000fff
108
109/*
110 * Bits in DSISR:
111 */
112#define DSISR_DIRECT 0x80000000
113#define DSISR_NOTFOUND 0x40000000
114#define DSISR_PROTECT 0x08000000
115#define DSISR_INVRX 0x04000000
116#define DSISR_STORE 0x02000000
117#define DSISR_DABR 0x00400000
118#define DSISR_SEGMENT 0x00200000
119#define DSISR_EAR 0x00100000
120
121/*
122 * Bits in SRR1 on ISI:
123 */
124#define ISSRR1_NOTFOUND 0x40000000
125#define ISSRR1_DIRECT 0x10000000
126#define ISSRR1_PROTECT 0x08000000
127#define ISSRR1_SEGMENT 0x00200000
128
129#endif /* _POWERPC_PTE_H_ */