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annotate packages/hal/sparclite/sim/current/include/hal_cache.h @ 210:d2c90368aeef

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Merge from eCos master repository on 2002-05-23-21:39:14-BST
author jlarmour
date Thu, 23 May 2002 22:59:51 +0000
parents e0c0827131d1
children
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1 #ifndef CYGONCE_HAL_CACHE_H
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2 #define CYGONCE_HAL_CACHE_H
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3
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4 //=============================================================================
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5 //
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6 // hal_cache.h
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7 //
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8 // HAL Cache control support (such as it is in the simulator)
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9 //
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10 //=============================================================================
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11 //####ECOSGPLCOPYRIGHTBEGIN####
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12 // -------------------------------------------
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13 // This file is part of eCos, the Embedded Configurable Operating System.
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14 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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15 //
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16 // eCos is free software; you can redistribute it and/or modify it under
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17 // the terms of the GNU General Public License as published by the Free
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18 // Software Foundation; either version 2 or (at your option) any later version.
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19 //
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20 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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21 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
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22 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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23 // for more details.
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24 //
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25 // You should have received a copy of the GNU General Public License along
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26 // with eCos; if not, write to the Free Software Foundation, Inc.,
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27 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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28 //
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29 // As a special exception, if other files instantiate templates or use macros
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30 // or inline functions from this file, or you compile this file and link it
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31 // with other works to produce a work based on this file, this file does not
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32 // by itself cause the resulting work to be covered by the GNU General Public
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33 // License. However the source code for this file must still be made available
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34 // in accordance with section (3) of the GNU General Public License.
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35 //
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36 // This exception does not invalidate any other reasons why a work based on
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37 // this file might be covered by the GNU General Public License.
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38 //
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39 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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40 // at http://sources.redhat.com/ecos/ecos-license/
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41 // -------------------------------------------
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42 //####ECOSGPLCOPYRIGHTEND####
2
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43 //=============================================================================
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44 //#####DESCRIPTIONBEGIN####
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45 //
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46 // Author(s): nickg, gthomas, hmt
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47 // Contributors: nickg, gthomas, hmt
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48 // Date: 1999-01-28
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49 // Purpose: Define Interrupt support
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50 // Description: The macros defined here provide the HAL APIs for handling
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51 // the caches.
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52 //
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53 // Usage:
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54 // #include <cyg/hal/hal_cache.h>
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55 // ...
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56 //
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57 //
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58 //####DESCRIPTIONEND####
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59 //
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60 //=============================================================================
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61
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62 #include <pkgconf/hal.h>
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63 #include <pkgconf/hal_sparclite.h>
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64
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65 #include <cyg/infra/cyg_type.h>
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66
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67 //-----------------------------------------------------------------------------
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68 // SPARClite cache macros
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69
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70 //-----------------------------------------------------------------------------
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71 // Cache dimensions
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72
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73 // Data cache
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74 #define HAL_DCACHE_SIZE 0x800 // Size of data cache in bytes
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75 #define HAL_DCACHE_LINE_SIZE 4 // Size of a data cache line
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76 #define HAL_DCACHE_WAYS 4 // Associativity of the cache
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77
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78 // Instruction cache
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79 #define HAL_ICACHE_SIZE 0x800 // Size of cache in bytes
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80 #define HAL_ICACHE_LINE_SIZE 4 // Size of a cache line
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81 #define HAL_ICACHE_WAYS 4 // Associativity of the cache
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82
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83 #define HAL_DCACHE_SETS (HAL_DCACHE_SIZE/(HAL_DCACHE_LINE_SIZE*HAL_DCACHE_WAYS))
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84 #define HAL_ICACHE_SETS (HAL_ICACHE_SIZE/(HAL_ICACHE_LINE_SIZE*HAL_ICACHE_WAYS))
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85
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86 //-----------------------------------------------------------------------------
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87 // Global control of data cache
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88
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89 // Enable the data cache
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90 #define HAL_DCACHE_ENABLE()
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91 // Disable the data cache
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92 #define HAL_DCACHE_DISABLE()
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93 // Invalidate the entire cache
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94 #define HAL_DCACHE_INVALIDATE_ALL()
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95 // Synchronize the contents of the cache with memory.
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96 #define HAL_DCACHE_SYNC()
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97
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98 // Set the data cache refill burst size
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99 //#define HAL_DCACHE_BURST_SIZE(_size_)
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100
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101 // Set the data cache write mode
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102 //#define HAL_DCACHE_WRITE_MODE( _mode_ )
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103
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104 //#define HAL_DCACHE_WRITETHRU_MODE 0
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105 //#define HAL_DCACHE_WRITEBACK_MODE 1
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106
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107 // Load the contents of the given address range into the data cache
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108 // and then lock the cache so that it stays there.
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109 //#define HAL_DCACHE_LOCK(_base_, _size_)
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110
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111 // Undo a previous lock operation
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112 //#define HAL_DCACHE_UNLOCK(_base_, _size_)
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113
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114 // Unlock entire cache
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115 //#define HAL_DCACHE_UNLOCK_ALL()
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116
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117 //-----------------------------------------------------------------------------
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118 // Data cache line control
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119
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120 // Allocate cache lines for the given address range without reading its
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121 // contents from memory.
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122 //#define HAL_DCACHE_ALLOCATE( _base_ , _size_ )
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123
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124 // Write dirty cache lines to memory and invalidate the cache entries
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125 // for the given address range.
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126 //#define HAL_DCACHE_FLUSH( _base_ , _size_ )
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127
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128 // Invalidate cache lines in the given range without writing to memory.
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129 //#define HAL_DCACHE_INVALIDATE( _base_ , _size_ )
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130
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131 // Write dirty cache lines to memory for the given address range.
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132 //#define HAL_DCACHE_STORE( _base_ , _size_ )
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133
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134 // Preread the given range into the cache with the intention of reading
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135 // from it later.
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136 //#define HAL_DCACHE_READ_HINT( _base_ , _size_ )
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137
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138 // Preread the given range into the cache with the intention of writing
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139 // to it later.
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140 //#define HAL_DCACHE_WRITE_HINT( _base_ , _size_ )
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141
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142 // Allocate and zero the cache lines associated with the given range.
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143 //#define HAL_DCACHE_ZERO( _base_ , _size_ )
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144
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145 //-----------------------------------------------------------------------------
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146 // Global control of Instruction cache - use Data cache controls since they
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147 // are not separatable.
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148
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149 // Enable the instruction cache
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150 #define HAL_ICACHE_ENABLE() HAL_DCACHE_ENABLE()
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151
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152 // Disable the instruction cache
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153 #define HAL_ICACHE_DISABLE() HAL_DCACHE_DISABLE()
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154
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155 // Invalidate the entire cache
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156 #define HAL_ICACHE_INVALIDATE_ALL() HAL_DCACHE_SYNC(); HAL_DCACHE_INVALIDATE_ALL()
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157
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158 // Synchronize the contents of the cache with memory.
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159 #define HAL_ICACHE_SYNC()
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160
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161 // Set the instruction cache refill burst size
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162 //#define HAL_ICACHE_BURST_SIZE(_size_)
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163
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164 // Load the contents of the given address range into the instruction cache
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165 // and then lock the cache so that it stays there.
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166 //#define HAL_ICACHE_LOCK(_base_, _size_)
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167
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168 // Undo a previous lock operation
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169 //#define HAL_ICACHE_UNLOCK(_base_, _size_)
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170
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171 // Unlock entire cache
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172 //#define HAL_ICACHE_UNLOCK_ALL()
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173
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174 //-----------------------------------------------------------------------------
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175 // Instruction cache line control
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176
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177 // Invalidate cache lines in the given range without writing to memory.
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178 //#define HAL_ICACHE_INVALIDATE( _base_ , _size_ )
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179
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180 //-----------------------------------------------------------------------------
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181 #endif // ifndef CYGONCE_HAL_CACHE_H
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182 // End of hal_cache.h