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comparison packages/hal/sparc/leon/current/include/hal_cache.h @ 208:e0c0827131d1 ecos

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Merge from eCos master repository on 2002-05-20-20:11:54-BST
author jlarmour
date Mon, 20 May 2002 22:19:26 +0000
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children d2c90368aeef
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207:74c807ddde34 208:e0c0827131d1
1 #ifndef CYGONCE_HAL_CACHE_H
2 #define CYGONCE_HAL_CACHE_H
3
4 //=============================================================================
5 //
6 // hal_cache.h
7 //
8 // HAL Cache control support (such as it is in the simulator)
9 //
10 //=============================================================================
11 //####ECOSGPLCOPYRIGHTBEGIN####
12 // -------------------------------------------
13 // This file is part of eCos, the Embedded Configurable Operating System.
14 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
15 //
16 // eCos is free software; you can redistribute it and/or modify it under
17 // the terms of the GNU General Public License as published by the Free
18 // Software Foundation; either version 2 or (at your option) any later version.
19 //
20 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
21 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
22 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
23 // for more details.
24 //
25 // You should have received a copy of the GNU General Public License along
26 // with eCos; if not, write to the Free Software Foundation, Inc.,
27 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
28 //
29 // As a special exception, if other files instantiate templates or use macros
30 // or inline functions from this file, or you compile this file and link it
31 // with other works to produce a work based on this file, this file does not
32 // by itself cause the resulting work to be covered by the GNU General Public
33 // License. However the source code for this file must still be made available
34 // in accordance with section (3) of the GNU General Public License.
35 //
36 // This exception does not invalidate any other reasons why a work based on
37 // this file might be covered by the GNU General Public License.
38 //
39 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
40 // at http://sources.redhat.com/ecos/ecos-license
41 // -------------------------------------------
42 //####ECOSGPLCOPYRIGHTEND####
43 //=============================================================================
44 //#####DESCRIPTIONBEGIN####
45 //
46 // Author(s): nickg, gthomas, hmt
47 // Contributors: nickg, gthomas, hmt
48 // Date: 1999-01-28
49 // Purpose: Define Interrupt support
50 // Description: The macros defined here provide the HAL APIs for handling
51 // the caches.
52 //
53 // Usage:
54 // #include <cyg/hal/hal_cache.h>
55 // ...
56 //
57 //
58 //####DESCRIPTIONEND####
59 //
60 //=============================================================================
61
62 #include <pkgconf/hal.h>
63 #include <pkgconf/hal_sparc.h>
64
65 #include <cyg/infra/cyg_type.h>
66
67 //-----------------------------------------------------------------------------
68 // LEON cache macros
69
70 //-----------------------------------------------------------------------------
71 // Cache dimensions
72
73 // Data cache
74 #define HAL_DCACHE_SIZE 0x4000 // Size of data cache in bytes
75 #define HAL_DCACHE_LINE_SIZE 16 // Size of a data cache line
76 #define HAL_DCACHE_WAYS 1 // Associativity of the cache
77
78 // Instruction cache
79 #define HAL_ICACHE_SIZE 0x4000 // Size of cache in bytes
80 #define HAL_ICACHE_LINE_SIZE 16 // Size of a cache line
81 #define HAL_ICACHE_WAYS 1 // Associativity of the cache
82
83 #define HAL_DCACHE_SETS (HAL_DCACHE_SIZE/(HAL_DCACHE_LINE_SIZE*HAL_DCACHE_WAYS))
84 #define HAL_ICACHE_SETS (HAL_ICACHE_SIZE/(HAL_ICACHE_LINE_SIZE*HAL_ICACHE_WAYS))
85
86 //-----------------------------------------------------------------------------
87 // Global control of data cache
88
89 // Enable the data cache
90 #define HAL_DCACHE_ENABLE() //*((int *)0x80000014) |= (int)0x0000000c
91 // Disable the data cache
92 #define HAL_DCACHE_DISABLE() //*((int *)0x80000014) &= ~(int)0x0000000c
93 // Invalidate the entire cache
94 #define HAL_DCACHE_INVALIDATE_ALL() //*((int *)0x80000014) |= (int)0x00400000
95 // Synchronize the contents of the cache with memory.
96 #define HAL_DCACHE_SYNC()
97
98 // Set the data cache refill burst size
99 //#define HAL_DCACHE_BURST_SIZE(_size_)
100
101 // Set the data cache write mode
102 //#define HAL_DCACHE_WRITE_MODE( _mode_ )
103
104 //#define HAL_DCACHE_WRITETHRU_MODE 0
105 //#define HAL_DCACHE_WRITEBACK_MODE 1
106
107 // Load the contents of the given address range into the data cache
108 // and then lock the cache so that it stays there.
109 //#define HAL_DCACHE_LOCK(_base_, _size_)
110
111 // Undo a previous lock operation
112 //#define HAL_DCACHE_UNLOCK(_base_, _size_)
113
114 // Unlock entire cache
115 //#define HAL_DCACHE_UNLOCK_ALL()
116
117 //-----------------------------------------------------------------------------
118 // Data cache line control
119
120 // Allocate cache lines for the given address range without reading its
121 // contents from memory.
122 //#define HAL_DCACHE_ALLOCATE( _base_ , _size_ )
123
124 // Write dirty cache lines to memory and invalidate the cache entries
125 // for the given address range.
126 //#define HAL_DCACHE_FLUSH( _base_ , _size_ )
127
128 // Invalidate cache lines in the given range without writing to memory.
129 //#define HAL_DCACHE_INVALIDATE( _base_ , _size_ )
130
131 // Write dirty cache lines to memory for the given address range.
132 //#define HAL_DCACHE_STORE( _base_ , _size_ )
133
134 // Preread the given range into the cache with the intention of reading
135 // from it later.
136 //#define HAL_DCACHE_READ_HINT( _base_ , _size_ )
137
138 // Preread the given range into the cache with the intention of writing
139 // to it later.
140 //#define HAL_DCACHE_WRITE_HINT( _base_ , _size_ )
141
142 // Allocate and zero the cache lines associated with the given range.
143 //#define HAL_DCACHE_ZERO( _base_ , _size_ )
144
145 //-----------------------------------------------------------------------------
146 // Global control of Instruction cache - use Data cache controls since they
147 // are not separatable.
148
149 // Enable the instruction cache
150 #define HAL_ICACHE_ENABLE() HAL_DCACHE_ENABLE()
151
152 // Disable the instruction cache
153 #define HAL_ICACHE_DISABLE() HAL_DCACHE_DISABLE()
154
155 // Invalidate the entire cache
156 #define HAL_ICACHE_INVALIDATE_ALL() HAL_DCACHE_SYNC(); HAL_DCACHE_INVALIDATE_ALL()
157
158 // Synchronize the contents of the cache with memory.
159 #define HAL_ICACHE_SYNC()
160
161 // Set the instruction cache refill burst size
162 //#define HAL_ICACHE_BURST_SIZE(_size_)
163
164 // Load the contents of the given address range into the instruction cache
165 // and then lock the cache so that it stays there.
166 //#define HAL_ICACHE_LOCK(_base_, _size_)
167
168 // Undo a previous lock operation
169 //#define HAL_ICACHE_UNLOCK(_base_, _size_)
170
171 // Unlock entire cache
172 //#define HAL_ICACHE_UNLOCK_ALL()
173
174 //-----------------------------------------------------------------------------
175 // Instruction cache line control
176
177 // Invalidate cache lines in the given range without writing to memory.
178 //#define HAL_ICACHE_INVALIDATE( _base_ , _size_ )
179
180 //-----------------------------------------------------------------------------
181 #endif // ifndef CYGONCE_HAL_CACHE_H
182 // End of hal_cache.h