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annotate packages/hal/arm/cma230/current/include/hal_cache.h @ 46:797268ecc331 ecos-sw-1999-10-19

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Merge from eCos master repository on 1999-10-19-18:55:31-BST
author jlarmour
date Tue, 19 Oct 1999 19:19:52 +0000
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children 6e51d764f8f1
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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 API
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9 //
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10 //=============================================================================
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11 //####COPYRIGHTBEGIN####
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12 //
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13 // -------------------------------------------
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14 // The contents of this file are subject to the Cygnus eCos Public License
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15 // Version 1.0 (the "License"); you may not use this file except in
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16 // compliance with the License. You may obtain a copy of the License at
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17 // http://sourceware.cygnus.com/ecos
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18 //
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19 // Software distributed under the License is distributed on an "AS IS"
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20 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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21 // License for the specific language governing rights and limitations under
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22 // the License.
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23 //
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24 // The Original Code is eCos - Embedded Cygnus Operating System, released
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25 // September 30, 1998.
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26 //
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27 // The Initial Developer of the Original Code is Cygnus. Portions created
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28 // by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions. All Rights Reserved.
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29 // -------------------------------------------
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30 //
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31 //####COPYRIGHTEND####
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32 //=============================================================================
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33 //#####DESCRIPTIONBEGIN####
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34 //
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35 // Author(s): nickg, gthomas
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36 // Contributors: nickg, gthomas
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37 // Date: 1998-09-28
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38 // Purpose: Cache control API
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39 // Description: The macros defined here provide the HAL APIs for handling
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40 // cache control operations.
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41 // Usage:
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42 // #include <cyg/hal/hal_cache.h>
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43 // ...
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44 //
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45 //
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46 //####DESCRIPTIONEND####
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47 //
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48 //=============================================================================
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49
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50 #include <cyg/infra/cyg_type.h>
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51
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52 //-----------------------------------------------------------------------------
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53 // Cache dimensions
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54
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55 // Data cache
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56 #define HAL_DCACHE_SIZE 0 // Size of data cache in bytes
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57 #define HAL_DCACHE_LINE_SIZE 0 // Size of a data cache line
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58 #define HAL_DCACHE_WAYS 0 // Associativity of the cache
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59
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60 // Instruction cache
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61 #define HAL_ICACHE_SIZE 0 // Size of cache in bytes
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62 #define HAL_ICACHE_LINE_SIZE 0 // Size of a cache line
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63 #define HAL_ICACHE_WAYS 0 // Associativity of the cache
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64
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65 #define HAL_DCACHE_SETS (HAL_DCACHE_SIZE/(HAL_DCACHE_LINE_SIZE*HAL_DCACHE_WAYS))
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66 #define HAL_ICACHE_SETS (HAL_ICACHE_SIZE/(HAL_ICACHE_LINE_SIZE*HAL_ICACHE_WAYS))
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67
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68 //-----------------------------------------------------------------------------
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69 // Global control of data cache
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70
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71 // Enable the data cache
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72 #define HAL_DCACHE_ENABLE()
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73
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74 // Disable the data cache
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75 #define HAL_DCACHE_DISABLE()
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76
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77 // Invalidate the entire cache
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78 #define HAL_DCACHE_INVALIDATE_ALL()
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79
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80 // Synchronize the contents of the cache with memory.
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81 #define HAL_DCACHE_SYNC()
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82
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83 // Purge contents of data cache
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84 #define HAL_DCACHE_PURGE_ALL()
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85
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86 // Set the data cache refill burst size
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87 //#define HAL_DCACHE_BURST_SIZE(_size_)
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88
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89 // Set the data cache write mode
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90 //#define HAL_DCACHE_WRITE_MODE( _mode_ )
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91
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92 //#define HAL_DCACHE_WRITETHRU_MODE 0
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93 //#define HAL_DCACHE_WRITEBACK_MODE 1
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94
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95 // Load the contents of the given address range into the data cache
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96 // and then lock the cache so that it stays there.
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97 //#define HAL_DCACHE_LOCK(_base_, _size_)
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98
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99 // Undo a previous lock operation
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100 //#define HAL_DCACHE_UNLOCK(_base_, _size_)
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101
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102 // Unlock entire cache
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103 //#define HAL_DCACHE_UNLOCK_ALL()
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104
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105 //-----------------------------------------------------------------------------
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106 // Data cache line control
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107
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108 // Allocate cache lines for the given address range without reading its
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109 // contents from memory.
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110 //#define HAL_DCACHE_ALLOCATE( _base_ , _size_ )
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111
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112 // Write dirty cache lines to memory and invalidate the cache entries
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113 // for the given address range.
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114 //#define HAL_DCACHE_FLUSH( _base_ , _size_ )
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115
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116 // Invalidate cache lines in the given range without writing to memory.
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117 //#define HAL_DCACHE_INVALIDATE( _base_ , _size_ )
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118
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119 // Write dirty cache lines to memory for the given address range.
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120 //#define HAL_DCACHE_STORE( _base_ , _size_ )
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121
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122 // Preread the given range into the cache with the intention of reading
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123 // from it later.
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124 //#define HAL_DCACHE_READ_HINT( _base_ , _size_ )
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125
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126 // Preread the given range into the cache with the intention of writing
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127 // to it later.
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128 //#define HAL_DCACHE_WRITE_HINT( _base_ , _size_ )
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129
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130 // Allocate and zero the cache lines associated with the given range.
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131 //#define HAL_DCACHE_ZERO( _base_ , _size_ )
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132
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133 //-----------------------------------------------------------------------------
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134 // Global control of Instruction cache
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135
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136 // Enable the instruction cache
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137 #define HAL_ICACHE_ENABLE()
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138
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139 // Disable the instruction cache
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140 #define HAL_ICACHE_DISABLE()
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141
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142 // Invalidate the entire cache
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143 #define HAL_ICACHE_INVALIDATE_ALL()
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144
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145 // Synchronize the contents of the cache with memory.
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146 #define HAL_ICACHE_SYNC()
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147
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148 // Set the instruction cache refill burst size
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149 //#define HAL_ICACHE_BURST_SIZE(_size_)
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150
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151 // Load the contents of the given address range into the instruction cache
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152 // and then lock the cache so that it stays there.
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153 //#define HAL_ICACHE_LOCK(_base_, _size_)
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154
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155 // Undo a previous lock operation
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156 //#define HAL_ICACHE_UNLOCK(_base_, _size_)
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157
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158 // Unlock entire cache
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159 //#define HAL_ICACHE_UNLOCK_ALL()
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160
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161 //-----------------------------------------------------------------------------
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162 // Instruction cache line control
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163
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164 // Invalidate cache lines in the given range without writing to memory.
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165 //#define HAL_ICACHE_INVALIDATE( _base_ , _size_ )
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166
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167 //-----------------------------------------------------------------------------
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168 #endif // ifndef CYGONCE_HAL_CACHE_H
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169 // End of hal_cache.h