2 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
3 * Copyright (C) 1995, 1996 TooLs GmbH.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by TooLs GmbH.
17 * 4. The name of TooLs GmbH may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 * $NetBSD: pte.h,v 1.2 1998/08/31 14:43:40 tsubai Exp $
35 #ifndef _MACHINE_PTE_H_
36 #define _MACHINE_PTE_H_
53 /* 64-bit (long) PTE */
65 /* 32-bit PTE definitions */
68 #define PTE_VALID 0x80000000
69 #define PTE_VSID_SHFT 7
70 #define PTE_HID 0x00000040
71 #define PTE_API 0x0000003f
73 #define PTE_RPGN 0xfffff000
74 #define PTE_REF 0x00000100
75 #define PTE_CHG 0x00000080
76 #define PTE_WIMG 0x00000078
77 #define PTE_W 0x00000040
78 #define PTE_I 0x00000020
79 #define PTE_M 0x00000010
80 #define PTE_G 0x00000008
81 #define PTE_PP 0x00000003
82 #define PTE_SO 0x00000000 /* Super. Only (U: XX, S: RW) */
83 #define PTE_SW 0x00000001 /* Super. Write-Only (U: RO, S: RW) */
84 #define PTE_BW 0x00000002 /* Supervisor (U: RW, S: RW) */
85 #define PTE_BR 0x00000003 /* Both Read Only (U: RO, S: RO) */
89 #define PTE_EXEC 0x00000200 /* pseudo bit in attrs; page is exec */
91 /* 64-bit PTE definitions */
94 #define LPTE_VSID_SHIFT 12
95 #define LPTE_API 0x0000000000000F80ULL
96 #define LPTE_BIG 0x0000000000000004ULL /* 4kb/16Mb page */
97 #define LPTE_HID 0x0000000000000002ULL
98 #define LPTE_VALID 0x0000000000000001ULL
101 #define EXTEND_PTE(x) UINT64_C(x) /* make constants 64-bit */
102 #define LPTE_RPGN 0xfffffffffffff000ULL
103 #define LPTE_REF EXTEND_PTE( PTE_REF )
104 #define LPTE_CHG EXTEND_PTE( PTE_CHG )
105 #define LPTE_WIMG EXTEND_PTE( PTE_WIMG )
106 #define LPTE_W EXTEND_PTE( PTE_W )
107 #define LPTE_I EXTEND_PTE( PTE_I )
108 #define LPTE_M EXTEND_PTE( PTE_M )
109 #define LPTE_G EXTEND_PTE( PTE_G )
110 #define LPTE_NOEXEC 0x0000000000000004ULL
111 #define LPTE_PP EXTEND_PTE( PTE_PP )
113 #define LPTE_SO EXTEND_PTE( PTE_SO ) /* Super. Only */
114 #define LPTE_SW EXTEND_PTE( PTE_SW ) /* Super. Write-Only */
115 #define LPTE_BW EXTEND_PTE( PTE_BW ) /* Supervisor */
116 #define LPTE_BR EXTEND_PTE( PTE_BR ) /* Both Read Only */
117 #define LPTE_RW LPTE_BW
118 #define LPTE_RO LPTE_BR
121 typedef struct pte pte_t;
122 typedef struct lpte lpte_t;
126 * Extract bits from address
128 #define ADDR_SR_SHFT 28
129 #define ADDR_PIDX 0x0ffff000
130 #define ADDR_PIDX_SHFT 12
131 #define ADDR_API_SHFT 22
132 #define ADDR_POFF 0x00000fff
137 #define DSISR_DIRECT 0x80000000
138 #define DSISR_NOTFOUND 0x40000000
139 #define DSISR_PROTECT 0x08000000
140 #define DSISR_INVRX 0x04000000
141 #define DSISR_STORE 0x02000000
142 #define DSISR_DABR 0x00400000
143 #define DSISR_SEGMENT 0x00200000
144 #define DSISR_EAR 0x00100000
147 * Bits in SRR1 on ISI:
149 #define ISSRR1_NOTFOUND 0x40000000
150 #define ISSRR1_DIRECT 0x10000000
151 #define ISSRR1_PROTECT 0x08000000
152 #define ISSRR1_SEGMENT 0x00200000
156 extern u_int dsisr(void);
159 #endif /* _MACHINE_PTE_H_ */