sh4_mmu.h Source File

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sh4_mmu.h
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1 /* $NetBSD: mmu_sh4.h,v 1.6 2006/03/04 01:55:03 uwe Exp $ */
2 
3 #ifndef _SH3_MMU_SH4_H_
4 #define _SH3_MMU_SH4_H_
5 
6 /*-
7  * Copyright (c) 2002 The NetBSD Foundation, Inc.
8  * All rights reserved.
9  *
10  * This code is derived from software contributed to The NetBSD Foundation
11  * by UCHIYAMA Yasushi.
12  *
13  * Redistribution and use in source and binary forms, with or without
14  * modification, are permitted provided that the following conditions
15  * are met:
16  * 1. Redistributions of source code must retain the above copyright
17  * notice, this list of conditions and the following disclaimer.
18  * 2. Redistributions in binary form must reproduce the above copyright
19  * notice, this list of conditions and the following disclaimer in the
20  * documentation and/or other materials provided with the distribution.
21  * 3. All advertising materials mentioning features or use of this software
22  * must display the following acknowledgement:
23  * This product includes software developed by the NetBSD
24  * Foundation, Inc. and its contributors.
25  * 4. Neither the name of The NetBSD Foundation nor the names of its
26  * contributors may be used to endorse or promote products derived
27  * from this software without specific prior written permission.
28  *
29  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
30  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
31  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
32  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
33  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
34  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
35  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
36  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
37  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
39  * POSSIBILITY OF SUCH DAMAGE.
40  */
41 
42 /* #include <sh3/devreg.h> */
43 
44 /* ITLB 4-entry full-associative UTLB 64-entry full-associative */
45 #define SH4_PTEH 0xff000000
46 #define SH4_PTEH_VPN_MASK 0xfffffc00
47 #define SH4_PTEH_ASID_MASK 0x000000ff
48 #define SH4_PTEL 0xff000004
49 #define SH4_PTEL_WT 0x00000001
50 #define SH4_PTEL_SH 0x00000002
51 #define SH4_PTEL_D 0x00000004
52 #define SH4_PTEL_C 0x00000008
53 #define SH4_PTEL_PR_SHIFT 5
54 #define SH4_PTEL_PR_MASK 0x00000060 /* [5:6] */
55 #define SH4_PTEL_SZ_MASK 0x00000090 /* [4][7] */
56 #define SH4_PTEL_SZ_1K 0x00000000
57 #define SH4_PTEL_SZ_4K 0x00000010
58 #define SH4_PTEL_SZ_64K 0x00000080
59 #define SH4_PTEL_SZ_1M 0x00000090
60 #define SH4_PTEL_V 0x00000100
61 #define SH4_PTEL_HWBITS 0x1ffff1ff /* [28:12]PFN [8:0]attr. */
62 
63 #define SH4_PTEA 0xff000034
64 #define SH4_PTEA_SA_MASK 0x00000007
65 #define SH4_PTEA_SA_TC 0x00000008
66 #define SH4_TTB 0xff000008
67 #define SH4_TEA 0xff00000c
68 #define SH4_MMUCR 0xff000010
69 #define SH4_MMUCR_AT 0x00000001
70 #define SH4_MMUCR_TI 0x00000004
71 #define SH4_MMUCR_SV 0x00000100
72 #define SH4_MMUCR_SQMD 0x00000200
73 #define SH4_MMUCR_URC_SHIFT 10
74 #define SH4_MMUCR_URC_MASK 0x0000fc00 /* [10:15] */
75 #define SH4_MMUCR_URB_SHIFT 18
76 #define SH4_MMUCR_URB_MASK 0x00fc0000 /* [18:23] */
77 #define SH4_MMUCR_LRUI_SHIFT 26
78 #define SH4_MMUCR_LRUT_MASK 0xfc000000 /* [26:31] */
79 
80 #define SH4_MMUCR_MASK (SH4_MMUCR_LRUT_MASK | SH4_MMUCR_URB_MASK | \
81  SH4_MMUCR_URC_MASK | SH4_MMUCR_SQMD | SH4_MMUCR_SV | SH4_MMUCR_AT)
82 /*
83  * memory-mapped TLB
84  * must be access from P2-area program.
85  * branch to the other area must be maed at least 8 instruction
86  * after access.
87  */
88 #define SH4_ITLB_ENTRY 4
89 #define SH4_UTLB_ENTRY 64
90 
91 /* ITLB */
92 #define SH4_ITLB_AA 0xf2000000
93 /* address specification (common for address and data array(0,1)) */
94 #define SH4_ITLB_E_SHIFT 8
95 #define SH4_ITLB_E_MASK 0x00000300 /* [9:8] */
96 /* data specification */
97 /* address-array */
98 #define SH4_ITLB_AA_ASID_MASK 0x000000ff /* [7:0] */
99 #define SH4_ITLB_AA_V 0x00000100
100 #define SH4_ITLB_AA_VPN_SHIFT 10
101 #define SH4_ITLB_AA_VPN_MASK 0xfffffc00 /* [31:10] */
102 /* data-array 1 */
103 #define SH4_ITLB_DA1 0xf3000000
104 #define SH4_ITLB_DA1_SH 0x00000002
105 #define SH4_ITLB_DA1_C 0x00000008
106 #define SH4_ITLB_DA1_SZ_MASK 0x00000090 /* [7][4] */
107 #define SH4_ITLB_DA1_SZ_1K 0x00000000
108 #define SH4_ITLB_DA1_SZ_4K 0x00000010
109 #define SH4_ITLB_DA1_SZ_64K 0x00000080
110 #define SH4_ITLB_DA1_SZ_1M 0x00000090
111 #define SH4_ITLB_DA1_PR 0x00000040
112 #define SH4_ITLB_DA1_V 0x00000100
113 #define SH4_ITLB_DA1_PPN_SHIFT 11
114 #define SH4_ITLB_DA1_PPN_MASK 0x1ffffc00 /* [28:10] */
115 /* data-array 2 */
116 #define SH4_ITLB_DA2 0xf3800000
117 #define SH4_ITLB_DA2_SA_MASK 0x00000003
118 #define SH4_ITLB_DA2_TC 0x00000004
119 
120 /* UTLB */
121 #define SH4_UTLB_AA 0xf6000000
122 /* address specification (common for address and data array(0,1)) */
123 #define SH4_UTLB_E_SHIFT 8
124 #define SH4_UTLB_E_MASK 0x00003f00
125 #define SH4_UTLB_A 0x00000080
126 /* data specification */
127 /* address-array */
128 #define SH4_UTLB_AA_VPN_MASK 0xfffffc00 /* [31:10] */
129 #define SH4_UTLB_AA_D 0x00000200
130 #define SH4_UTLB_AA_V 0x00000100
131 #define SH4_UTLB_AA_ASID_MASK 0x000000ff /* [7:0] */
132 /* data-array 1 */
133 #define SH4_UTLB_DA1 0xf7000000
134 #define SH4_UTLB_DA1_WT 0x00000001
135 #define SH4_UTLB_DA1_SH 0x00000002
136 #define SH4_UTLB_DA1_D 0x00000004
137 #define SH4_UTLB_DA1_C 0x00000008
138 #define SH4_UTLB_DA1_SZ_MASK 0x00000090 /* [7][4] */
139 #define SH4_UTLB_DA1_SZ_1K 0x00000000
140 #define SH4_UTLB_DA1_SZ_4K 0x00000010
141 #define SH4_UTLB_DA1_SZ_64K 0x00000080
142 #define SH4_UTLB_DA1_SZ_1M 0x00000090
143 #define SH4_UTLB_DA1_PR_SHIFT 5
144 #define SH4_UTLB_DA1_PR_MASK 0x00000060
145 #define SH4_UTLB_DA1_V 0x00000100
146 #define SH4_UTLB_DA1_PPN_SHIFT 11
147 #define SH4_UTLB_DA1_PPN_MASK 0x1ffffc00 /* [28:10] */
148 /* data-array 2 */
149 #define SH4_UTLB_DA2 0xf7800000
150 #define SH4_UTLB_DA2_SA_MASK 0x00000003
151 #define SH4_UTLB_DA2_TC 0x00000004
152 
153 #define SH4_TLB_DISABLE *(volatile uint32_t *)SH4_MMUCR = SH4_MMUCR_TI
154 #endif /* !_SH3_MMU_SH4_H_ */

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