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* Added execute permissions to files missed in conversion from CVS
author alexs
date Thu, 08 May 2003 17:42:17 +0000
parents d2c90368aeef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*=================================================================
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2 //
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3 // cache.c
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4 //
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5 // HAL Cache timing test
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6 //
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7 //==========================================================================
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8 //####ECOSGPLCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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12 //
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13 // eCos is free software; you can redistribute it and/or modify it under
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14 // the terms of the GNU General Public License as published by the Free
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15 // Software Foundation; either version 2 or (at your option) any later version.
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16 //
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17 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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18 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
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19 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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20 // for more details.
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21 //
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22 // You should have received a copy of the GNU General Public License along
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23 // with eCos; if not, write to the Free Software Foundation, Inc.,
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24 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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25 //
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26 // As a special exception, if other files instantiate templates or use macros
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27 // or inline functions from this file, or you compile this file and link it
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28 // with other works to produce a work based on this file, this file does not
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29 // by itself cause the resulting work to be covered by the GNU General Public
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30 // License. However the source code for this file must still be made available
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31 // in accordance with section (3) of the GNU General Public License.
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32 //
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33 // This exception does not invalidate any other reasons why a work based on
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34 // this file might be covered by the GNU General Public License.
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35 //
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36 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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37 // at http://sources.redhat.com/ecos/ecos-license/
208
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38 // -------------------------------------------
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39 //####ECOSGPLCOPYRIGHTEND####
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40 //==========================================================================
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41 //#####DESCRIPTIONBEGIN####
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42 //
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43 // Author(s): dsm
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44 // Contributors: dsm, nickg
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45 // Date: 1998-06-18
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46 //####DESCRIPTIONEND####
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47 */
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48
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49 #include <pkgconf/hal.h>
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50
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51 #include <cyg/infra/testcase.h>
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52
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53 #include <cyg/hal/hal_cache.h>
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54 #include <cyg/hal/hal_intr.h>
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55 #include <cyg/infra/diag.h>
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56
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57 #if defined(HAL_DCACHE_SIZE) && HAL_DCACHE_SIZE != 0
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58
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59 // -------------------------------------------------------------------------
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60 // If the HAL does not supply this, we supply our own version
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61
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62 #ifndef HAL_DCACHE_PURGE_ALL
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63
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64 #ifdef HAL_DCACHE_SYNC
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65
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66 # define HAL_DCACHE_PURGE_ALL() HAL_DCACHE_SYNC()
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67
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68 #else
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69
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70 static cyg_uint8 dca[HAL_DCACHE_SIZE + HAL_DCACHE_LINE_SIZE*2];
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71
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72 #define HAL_DCACHE_PURGE_ALL() \
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73 CYG_MACRO_START \
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74 volatile cyg_uint8 *addr = &dca[HAL_DCACHE_LINE_SIZE]; \
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75 volatile cyg_uint8 tmp = 0; \
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76 int i; \
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77 for( i = 0; i < HAL_DCACHE_SIZE; i += HAL_DCACHE_LINE_SIZE ) \
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78 { \
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79 tmp = addr[i]; \
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80 } \
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81 CYG_MACRO_END
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82
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83 #endif // HAL_DCACHE_SYNC
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84
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85 #endif // HAL_DCACHE_PURGE_ALL
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86
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87 // -------------------------------------------------------------------------
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88
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89 #ifndef MAX_STRIDE
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90 #define MAX_STRIDE 64
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91 #endif
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92
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93 volatile char m[(HAL_DCACHE_SIZE/HAL_DCACHE_LINE_SIZE)*MAX_STRIDE];
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94
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95 // -------------------------------------------------------------------------
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96
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97 static void time0(register cyg_uint32 stride)
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98 {
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99 register cyg_uint32 j,k;
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100 register char c;
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101
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102 diag_printf("stride=%d\n", stride);
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103
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104 k = 0;
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105 if ( cyg_test_is_simulator )
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106 k = 3960;
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107
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108 for(; k<4000;k++) {
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109 for(j=0; j<(HAL_DCACHE_SIZE/HAL_DCACHE_LINE_SIZE); j++) {
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110 c=m[stride*j];
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111 }
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112 }
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113 }
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114
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115 // -------------------------------------------------------------------------
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116
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117 void time1(void)
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118 {
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119 cyg_uint32 i;
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120
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121 for(i=1; i<=MAX_STRIDE; i+=i) {
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122 time0(i);
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123 }
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124 }
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125
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126 // -------------------------------------------------------------------------
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127 // This test could be improved by counting number of passes possible
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128 // in a given number of ticks.
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129
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130 static void entry0( void )
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131 {
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132 register CYG_INTERRUPT_STATE oldints;
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133
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134 #ifdef HAL_CACHE_UNIFIED
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135
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136 HAL_DISABLE_INTERRUPTS(oldints);
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137 HAL_DCACHE_PURGE_ALL(); // rely on above definition
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138 HAL_UCACHE_INVALIDATE_ALL();
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139 HAL_UCACHE_DISABLE();
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140 HAL_RESTORE_INTERRUPTS(oldints);
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141 CYG_TEST_INFO("Cache off");
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142 time1();
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143
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144 HAL_DISABLE_INTERRUPTS(oldints);
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145 HAL_DCACHE_PURGE_ALL(); // rely on above definition
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146 HAL_UCACHE_INVALIDATE_ALL();
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147 HAL_UCACHE_ENABLE();
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148 HAL_RESTORE_INTERRUPTS(oldints);
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149 CYG_TEST_INFO("Cache on");
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150 time1();
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151
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152 #else // HAL_CACHE_UNIFIED
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153
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154 HAL_DISABLE_INTERRUPTS(oldints);
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155 HAL_DCACHE_PURGE_ALL();
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156 HAL_ICACHE_INVALIDATE_ALL();
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157 HAL_DCACHE_INVALIDATE_ALL();
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158 HAL_ICACHE_DISABLE();
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159 HAL_DCACHE_DISABLE();
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160 HAL_RESTORE_INTERRUPTS(oldints);
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161 CYG_TEST_INFO("Dcache off Icache off");
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162 time1();
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163
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164 HAL_DISABLE_INTERRUPTS(oldints);
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165 HAL_DCACHE_PURGE_ALL();
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166 HAL_ICACHE_INVALIDATE_ALL();
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167 HAL_DCACHE_INVALIDATE_ALL();
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168 HAL_ICACHE_DISABLE();
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169 HAL_DCACHE_ENABLE();
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170 HAL_RESTORE_INTERRUPTS(oldints);
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171 CYG_TEST_INFO("Dcache on Icache off");
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172 time1();
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173
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174 HAL_DISABLE_INTERRUPTS(oldints);
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175 HAL_DCACHE_PURGE_ALL();
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176 HAL_ICACHE_INVALIDATE_ALL();
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177 HAL_DCACHE_INVALIDATE_ALL();
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178 HAL_ICACHE_ENABLE();
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179 HAL_DCACHE_DISABLE();
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180 HAL_RESTORE_INTERRUPTS(oldints);
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181 CYG_TEST_INFO("Dcache off Icache on");
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182 time1();
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183
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184 HAL_DISABLE_INTERRUPTS(oldints);
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185 HAL_DCACHE_PURGE_ALL();
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186 HAL_ICACHE_INVALIDATE_ALL();
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187 HAL_DCACHE_INVALIDATE_ALL();
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188 HAL_ICACHE_ENABLE();
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189 HAL_DCACHE_ENABLE();
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190 HAL_RESTORE_INTERRUPTS(oldints);
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191 CYG_TEST_INFO("Dcache on Icache on");
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192 time1();
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193
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194 HAL_DISABLE_INTERRUPTS(oldints);
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195 HAL_DCACHE_PURGE_ALL();
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196 HAL_ICACHE_INVALIDATE_ALL();
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197 HAL_DCACHE_INVALIDATE_ALL();
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198 HAL_ICACHE_DISABLE();
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199 HAL_DCACHE_DISABLE();
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200 HAL_RESTORE_INTERRUPTS(oldints);
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201 CYG_TEST_INFO("Dcache off Icache off");
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202 time1();
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203
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204 #endif // HAL_CACHE_UNIFIED
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205
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206 CYG_TEST_PASS_FINISH("End of test");
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207 }
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208
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209 // -------------------------------------------------------------------------
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210
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211 void cache_main( void )
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212 {
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213 CYG_TEST_INIT();
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214
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215 entry0();
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216
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217 }
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218
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219 // -------------------------------------------------------------------------
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220
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221 externC void
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222 cyg_start( void )
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223 {
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224 cache_main();
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225 }
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226
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227 #else // HAL_DCACHE_SIZE
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228 #define N_A_MSG "No cache"
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229 #endif // HAL_DCACHE_SIZE
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230
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231 #ifdef N_A_MSG
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232 externC void
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233 cyg_start( void )
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234 {
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235 CYG_TEST_INIT();
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236 CYG_TEST_NA( N_A_MSG );
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237 }
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238 #endif // N_A_MSG
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239
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240 // -------------------------------------------------------------------------
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241 /* EOF cache.c */